656941202ed53347ae1720c85acaac35418148b0
[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-libxcb          enable X11 grabbing using XCB [autodetect]
285   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
286   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
287   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
288   --enable-libxvid         enable Xvid encoding via xvidcore,
289                            native MPEG-4/Xvid encoder exists [no]
290   --enable-libxml2         enable XML parsing using the C library libxml2, needed
291                            for dash demuxing support [no]
292   --enable-libzimg         enable z.lib, needed for zscale filter [no]
293   --enable-libzmq          enable message passing via libzmq [no]
294   --enable-libzvbi         enable teletext support via libzvbi [no]
295   --enable-lv2             enable LV2 audio filtering [no]
296   --disable-lzma           disable lzma [autodetect]
297   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
298   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
299   --enable-mbedtls         enable mbedTLS, needed for https support
300                            if openssl, gnutls or libtls is not used [no]
301   --enable-mediacodec      enable Android MediaCodec support [no]
302   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
303   --enable-openal          enable OpenAL 1.1 capture support [no]
304   --enable-opencl          enable OpenCL processing [no]
305   --enable-opengl          enable OpenGL rendering [no]
306   --enable-openssl         enable openssl, needed for https support
307                            if gnutls, libtls or mbedtls is not used [no]
308   --disable-sndio          disable sndio support [autodetect]
309   --disable-schannel       disable SChannel SSP, needed for TLS support on
310                            Windows if openssl and gnutls are not used [autodetect]
311   --disable-sdl2           disable sdl2 [autodetect]
312   --disable-securetransport disable Secure Transport, needed for TLS support
313                            on OSX if openssl and gnutls are not used [autodetect]
314   --enable-vapoursynth     enable VapourSynth demuxer [no]
315   --disable-xlib           disable xlib [autodetect]
316   --disable-zlib           disable zlib [autodetect]
317
318   The following libraries provide various hardware acceleration features:
319   --disable-amf            disable AMF video encoding code [autodetect]
320   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
321   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
322   --disable-cuvid          disable Nvidia CUVID support [autodetect]
323   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
324   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
325   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
326   --enable-libdrm          enable DRM code (Linux) [no]
327   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
328   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
329   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
330   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
331   --disable-nvenc          disable Nvidia video encoding code [autodetect]
332   --enable-omx             enable OpenMAX IL code [no]
333   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
334   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
335   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
336   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
337   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
338   --disable-videotoolbox   disable VideoToolbox code [autodetect]
339
340 Toolchain options:
341   --arch=ARCH              select architecture [$arch]
342   --cpu=CPU                select the minimum required CPU (affects
343                            instruction selection, may crash on older CPUs)
344   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
345   --progs-suffix=SUFFIX    program name suffix []
346   --enable-cross-compile   assume a cross-compiler is used
347   --sysroot=PATH           root of cross-build tree
348   --sysinclude=PATH        location of cross-build system headers
349   --target-os=OS           compiler targets OS [$target_os]
350   --target-exec=CMD        command to run executables on target
351   --target-path=DIR        path to view of build directory on target
352   --target-samples=DIR     path to samples directory on target
353   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
354   --toolchain=NAME         set tool defaults according to NAME
355                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
356                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
357                            valgrind-massif, valgrind-memcheck,
358                            msvc, icl, gcov, llvm-cov, hardened)
359   --nm=NM                  use nm tool NM [$nm_default]
360   --ar=AR                  use archive tool AR [$ar_default]
361   --as=AS                  use assembler AS [$as_default]
362   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
363   --strip=STRIP            use strip tool STRIP [$strip_default]
364   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
365   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
366   --cc=CC                  use C compiler CC [$cc_default]
367   --cxx=CXX                use C compiler CXX [$cxx_default]
368   --objcc=OCC              use ObjC compiler OCC [$cc_default]
369   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
370   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
371   --ld=LD                  use linker LD [$ld_default]
372   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
373   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
374   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
375   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
376   --host-cc=HOSTCC         use host C compiler HOSTCC
377   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
378   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
379   --host-ld=HOSTLD         use host linker HOSTLD
380   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
381   --host-libs=HLIBS        use libs HLIBS when linking for host
382   --host-os=OS             compiler host OS [$target_os]
383   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
384   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
385   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
386   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
387   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
388   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
389   --extra-libs=ELIBS       add ELIBS [$ELIBS]
390   --extra-version=STRING   version string suffix []
391   --optflags=OPTFLAGS      override optimization-related compiler flags
392   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
393   --build-suffix=SUFFIX    library name suffix []
394   --enable-pic             build position-independent code
395   --enable-thumb           compile for Thumb instruction set
396   --enable-lto             use link-time optimization
397   --env="ENV=override"     override the environment variables
398
399 Advanced options (experts only):
400   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
401   --custom-allocator=NAME  use a supported custom allocator
402   --disable-symver         disable symbol versioning
403   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
404   --disable-safe-bitstream-reader
405                            disable buffer boundary checking in bitreaders
406                            (faster, but may crash)
407   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
408
409 Optimization options (experts only):
410   --disable-asm            disable all assembly optimizations
411   --disable-altivec        disable AltiVec optimizations
412   --disable-vsx            disable VSX optimizations
413   --disable-power8         disable POWER8 optimizations
414   --disable-amd3dnow       disable 3DNow! optimizations
415   --disable-amd3dnowext    disable 3DNow! extended optimizations
416   --disable-mmx            disable MMX optimizations
417   --disable-mmxext         disable MMXEXT optimizations
418   --disable-sse            disable SSE optimizations
419   --disable-sse2           disable SSE2 optimizations
420   --disable-sse3           disable SSE3 optimizations
421   --disable-ssse3          disable SSSE3 optimizations
422   --disable-sse4           disable SSE4 optimizations
423   --disable-sse42          disable SSE4.2 optimizations
424   --disable-avx            disable AVX optimizations
425   --disable-xop            disable XOP optimizations
426   --disable-fma3           disable FMA3 optimizations
427   --disable-fma4           disable FMA4 optimizations
428   --disable-avx2           disable AVX2 optimizations
429   --disable-avx512         disable AVX-512 optimizations
430   --disable-aesni          disable AESNI optimizations
431   --disable-armv5te        disable armv5te optimizations
432   --disable-armv6          disable armv6 optimizations
433   --disable-armv6t2        disable armv6t2 optimizations
434   --disable-vfp            disable VFP optimizations
435   --disable-neon           disable NEON optimizations
436   --disable-inline-asm     disable use of inline assembly
437   --disable-x86asm         disable use of standalone x86 assembly
438   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
439   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
440   --disable-msa            disable MSA optimizations
441   --disable-mipsfpu        disable floating point MIPS optimizations
442   --disable-mmi            disable Loongson SIMD optimizations
443   --disable-fast-unaligned consider unaligned accesses slow
444
445 Developer options (useful when working on FFmpeg itself):
446   --disable-debug          disable debugging symbols
447   --enable-debug=LEVEL     set the debug level [$debuglevel]
448   --disable-optimizations  disable compiler optimizations
449   --enable-extra-warnings  enable more compiler warnings
450   --disable-stripping      disable stripping of executables and shared libraries
451   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
452                            2 causes a slowdown at runtime.
453   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
454   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
455                            leaks and errors, using the specified valgrind binary.
456                            Cannot be combined with --target-exec
457   --enable-ftrapv          Trap arithmetic overflows
458   --samples=PATH           location of test samples for FATE, if not set use
459                            \$FATE_SAMPLES at make invocation time.
460   --enable-neon-clobber-test check NEON registers for clobbering (should be
461                            used only for debugging purposes)
462   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
463                            should be used only for debugging purposes)
464   --enable-random          randomly enable/disable components
465   --disable-random
466   --enable-random=LIST     randomly enable/disable specific components or
467   --disable-random=LIST    component groups. LIST is a comma-separated list
468                            of NAME[:PROB] entries where NAME is a component
469                            (group) and PROB the probability associated with
470                            NAME (default 0.5).
471   --random-seed=VALUE      seed value for --enable/disable-random
472   --disable-valgrind-backtrace do not print a backtrace under Valgrind
473                            (only applies to --disable-optimizations builds)
474   --enable-osfuzz          Enable building fuzzer tool
475   --libfuzzer=PATH         path to libfuzzer
476   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
477                            in the name) of tests whose result is ignored
478   --enable-linux-perf      enable Linux Performance Monitor API
479
480 NOTE: Object files are built at the place where configure is launched.
481 EOF
482   exit 0
483 }
484
485 if test -t 1 && which tput >/dev/null 2>&1; then
486     ncolors=$(tput colors)
487     if test -n "$ncolors" && test $ncolors -ge 8; then
488         bold_color=$(tput bold)
489         warn_color=$(tput setaf 3)
490         error_color=$(tput setaf 1)
491         reset_color=$(tput sgr0)
492     fi
493     # 72 used instead of 80 since that's the default of pr
494     ncols=$(tput cols)
495 fi
496 : ${ncols:=72}
497
498 log(){
499     echo "$@" >> $logfile
500 }
501
502 log_file(){
503     log BEGIN $1
504     pr -n -t $1 >> $logfile
505     log END $1
506 }
507
508 warn(){
509     log "WARNING: $*"
510     WARNINGS="${WARNINGS}WARNING: $*\n"
511 }
512
513 die(){
514     log "$@"
515     echo "$error_color$bold_color$@$reset_color"
516     cat <<EOF
517
518 If you think configure made a mistake, make sure you are using the latest
519 version from Git.  If the latest version fails, report the problem to the
520 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
521 EOF
522     if disabled logging; then
523         cat <<EOF
524 Rerun configure with logging enabled (do not use --disable-logging), and
525 include the log this produces with your report.
526 EOF
527     else
528         cat <<EOF
529 Include the log file "$logfile" produced by configure as this will help
530 solve the problem.
531 EOF
532     fi
533     exit 1
534 }
535
536 # Avoid locale weirdness, besides we really just want to translate ASCII.
537 toupper(){
538     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
539 }
540
541 tolower(){
542     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
543 }
544
545 c_escape(){
546     echo "$*" | sed 's/["\\]/\\\0/g'
547 }
548
549 sh_quote(){
550     v=$(echo "$1" | sed "s/'/'\\\\''/g")
551     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
552     echo "$v"
553 }
554
555 cleanws(){
556     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
557 }
558
559 filter(){
560     pat=$1
561     shift
562     for v; do
563         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
564     done
565 }
566
567 filter_out(){
568     pat=$1
569     shift
570     for v; do
571         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
572     done
573 }
574
575 map(){
576     m=$1
577     shift
578     for v; do eval $m; done
579 }
580
581 add_suffix(){
582     suffix=$1
583     shift
584     for v; do echo ${v}${suffix}; done
585 }
586
587 remove_suffix(){
588     suffix=$1
589     shift
590     for v; do echo ${v%$suffix}; done
591 }
592
593 set_all(){
594     value=$1
595     shift
596     for var in $*; do
597         eval $var=$value
598     done
599 }
600
601 set_weak(){
602     value=$1
603     shift
604     for var; do
605         eval : \${$var:=$value}
606     done
607 }
608
609 sanitize_var_name(){
610     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
611 }
612
613 set_sanitized(){
614     var=$1
615     shift
616     eval $(sanitize_var_name "$var")='$*'
617 }
618
619 get_sanitized(){
620     eval echo \$$(sanitize_var_name "$1")
621 }
622
623 pushvar(){
624     for pvar in $*; do
625         eval level=\${${pvar}_level:=0}
626         eval ${pvar}_${level}="\$$pvar"
627         eval ${pvar}_level=$(($level+1))
628     done
629 }
630
631 popvar(){
632     for pvar in $*; do
633         eval level=\${${pvar}_level:-0}
634         test $level = 0 && continue
635         eval level=$(($level-1))
636         eval $pvar="\${${pvar}_${level}}"
637         eval ${pvar}_level=$level
638         eval unset ${pvar}_${level}
639     done
640 }
641
642 request(){
643     for var in $*; do
644         eval ${var}_requested=yes
645         eval $var=
646     done
647 }
648
649 enable(){
650     set_all yes $*
651 }
652
653 disable(){
654     set_all no $*
655 }
656
657 enable_weak(){
658     set_weak yes $*
659 }
660
661 disable_weak(){
662     set_weak no $*
663 }
664
665 enable_sanitized(){
666     for var; do
667         enable $(sanitize_var_name $var)
668     done
669 }
670
671 disable_sanitized(){
672     for var; do
673         disable $(sanitize_var_name $var)
674     done
675 }
676
677 do_enable_deep(){
678     for var; do
679         enabled $var && continue
680         set -- $var
681         eval enable_deep \$${var}_select
682         var=$1
683         eval enable_deep_weak \$${var}_suggest
684     done
685 }
686
687 enable_deep(){
688     do_enable_deep $*
689     enable $*
690 }
691
692 enable_deep_weak(){
693     for var; do
694         disabled $var && continue
695         set -- $var
696         do_enable_deep $var
697         var=$1
698         enable_weak $var
699     done
700 }
701
702 requested(){
703     test "${1#!}" = "$1" && op="=" || op="!="
704     eval test "x\$${1#!}_requested" $op "xyes"
705 }
706
707 enabled(){
708     test "${1#!}" = "$1" && op="=" || op="!="
709     eval test "x\$${1#!}" $op "xyes"
710 }
711
712 disabled(){
713     test "${1#!}" = "$1" && op="=" || op="!="
714     eval test "x\$${1#!}" $op "xno"
715 }
716
717 enabled_all(){
718     for opt; do
719         enabled $opt || return 1
720     done
721 }
722
723 disabled_all(){
724     for opt; do
725         disabled $opt || return 1
726     done
727 }
728
729 enabled_any(){
730     for opt; do
731         enabled $opt && return 0
732     done
733 }
734
735 disabled_any(){
736     for opt; do
737         disabled $opt && return 0
738     done
739     return 1
740 }
741
742 set_default(){
743     for opt; do
744         eval : \${$opt:=\$${opt}_default}
745     done
746 }
747
748 is_in(){
749     value=$1
750     shift
751     for var in $*; do
752         [ $var = $value ] && return 0
753     done
754     return 1
755 }
756
757 # The cfg loop is very hot (several thousands iterations), and in bash also
758 # potentialy quite slow. Try to abort the iterations early, preferably without
759 # calling functions. 70%+ of the time cfg is already done or without deps.
760 check_deps(){
761     for cfg; do
762         eval [ x\$${cfg}_checking = xdone ] && continue
763         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
764
765         eval "
766         dep_all=\$${cfg}_deps
767         dep_any=\$${cfg}_deps_any
768         dep_con=\$${cfg}_conflict
769         dep_sel=\$${cfg}_select
770         dep_sgs=\$${cfg}_suggest
771         dep_ifa=\$${cfg}_if
772         dep_ifn=\$${cfg}_if_any
773         "
774
775         # most of the time here $cfg has no deps - avoid costly no-op work
776         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
777             eval ${cfg}_checking=inprogress
778
779             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
780             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
781             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
782
783             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
784             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
785             enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
786             enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
787             disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
788             disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
789
790             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
791
792             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
793                 # filter out library deps, these do not belong in extralibs
794                 is_in $dep $LIBRARY_LIST && continue
795                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
796             done
797         fi
798
799         eval ${cfg}_checking=done
800     done
801 }
802
803 print_config(){
804     pfx=$1
805     files=$2
806     shift 2
807     map 'eval echo "$v \${$v:-no}"' "$@" |
808     awk "BEGIN { split(\"$files\", files) }
809         {
810             c = \"$pfx\" toupper(\$1);
811             v = \$2;
812             sub(/yes/, 1, v);
813             sub(/no/,  0, v);
814             for (f in files) {
815                 file = files[f];
816                 if (file ~ /\\.h\$/) {
817                     printf(\"#define %s %d\\n\", c, v) >>file;
818                 } else if (file ~ /\\.asm\$/) {
819                     printf(\"%%define %s %d\\n\", c, v) >>file;
820                 } else if (file ~ /\\.mak\$/) {
821                     n = -v ? \"\" : \"!\";
822                     printf(\"%s%s=yes\\n\", n, c) >>file;
823                 } else if (file ~ /\\.texi\$/) {
824                     pre = -v ? \"\" : \"@c \";
825                     yesno = \$2;
826                     c2 = tolower(c);
827                     gsub(/_/, \"-\", c2);
828                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
829                 }
830             }
831         }"
832 }
833
834 print_enabled(){
835     suf=$1
836     shift
837     for v; do
838         enabled $v && printf "%s\n" ${v%$suf}
839     done
840 }
841
842 append(){
843     var=$1
844     shift
845     eval "$var=\"\$$var $*\""
846 }
847
848 prepend(){
849     var=$1
850     shift
851     eval "$var=\"$* \$$var\""
852 }
853
854 reverse () {
855     eval '
856         reverse_out=
857         for v in $'$1'; do
858             reverse_out="$v $reverse_out"
859         done
860         '$1'=$reverse_out
861     '
862 }
863
864 # keeps the last occurence of each non-unique item
865 unique(){
866     unique_out=
867     eval unique_in=\$$1
868     reverse unique_in
869     for v in $unique_in; do
870         # " $unique_out" +space such that every item is surrounded with spaces
871         case " $unique_out" in *" $v "*) continue; esac  # already in list
872         unique_out="$unique_out$v "
873     done
874     reverse unique_out
875     eval $1=\$unique_out
876 }
877
878 resolve(){
879     resolve_out=
880     eval resolve_in=\$$1
881     for v in $resolve_in; do
882         eval 'resolve_out="$resolve_out$'$v' "'
883     done
884     eval $1=\$resolve_out
885 }
886
887 add_cppflags(){
888     append CPPFLAGS "$@"
889 }
890
891 add_cflags(){
892     append CFLAGS $($cflags_filter "$@")
893 }
894
895 add_cflags_headers(){
896     append CFLAGS_HEADERS $($cflags_filter "$@")
897 }
898
899 add_cxxflags(){
900     append CXXFLAGS $($cflags_filter "$@")
901 }
902
903 add_objcflags(){
904     append OBJCFLAGS $($objcflags_filter "$@")
905 }
906
907 add_asflags(){
908     append ASFLAGS $($asflags_filter "$@")
909 }
910
911 add_ldflags(){
912     append LDFLAGS $($ldflags_filter "$@")
913 }
914
915 add_ldexeflags(){
916     append LDEXEFLAGS $($ldflags_filter "$@")
917 }
918
919 add_ldsoflags(){
920     append LDSOFLAGS $($ldflags_filter "$@")
921 }
922
923 add_extralibs(){
924     prepend extralibs $($ldflags_filter "$@")
925 }
926
927 add_stripflags(){
928     append ASMSTRIPFLAGS "$@"
929 }
930
931 add_host_cppflags(){
932     append host_cppflags "$@"
933 }
934
935 add_host_cflags(){
936     append host_cflags $($host_cflags_filter "$@")
937 }
938
939 add_host_ldflags(){
940     append host_ldflags $($host_ldflags_filter "$@")
941 }
942
943 add_compat(){
944     append compat_objs $1
945     shift
946     map 'add_cppflags -D$v' "$@"
947 }
948
949 test_cmd(){
950     log "$@"
951     "$@" >> $logfile 2>&1
952 }
953
954 test_stat(){
955     log test_stat "$@"
956     stat "$1" >> $logfile 2>&1
957 }
958
959 cc_e(){
960     eval printf '%s\\n' $CC_E
961 }
962
963 cc_o(){
964     eval printf '%s\\n' $CC_O
965 }
966
967 as_o(){
968     eval printf '%s\\n' $AS_O
969 }
970
971 x86asm_o(){
972     eval printf '%s\\n' $X86ASM_O
973 }
974
975 ld_o(){
976     eval printf '%s\\n' $LD_O
977 }
978
979 hostcc_e(){
980     eval printf '%s\\n' $HOSTCC_E
981 }
982
983 hostcc_o(){
984     eval printf '%s\\n' $HOSTCC_O
985 }
986
987 test_cc(){
988     log test_cc "$@"
989     cat > $TMPC
990     log_file $TMPC
991     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
992 }
993
994 test_cxx(){
995     log test_cxx "$@"
996     cat > $TMPCPP
997     log_file $TMPCPP
998     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
999 }
1000
1001 test_objcc(){
1002     log test_objcc "$@"
1003     cat > $TMPM
1004     log_file $TMPM
1005     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1006 }
1007
1008 test_cpp(){
1009     log test_cpp "$@"
1010     cat > $TMPC
1011     log_file $TMPC
1012     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1013 }
1014
1015 test_as(){
1016     log test_as "$@"
1017     cat > $TMPS
1018     log_file $TMPS
1019     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1020 }
1021
1022 test_x86asm(){
1023     log test_x86asm "$@"
1024     echo "$1" > $TMPASM
1025     log_file $TMPASM
1026     shift
1027     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1028 }
1029
1030 check_cmd(){
1031     log check_cmd "$@"
1032     cmd=$1
1033     disabled $cmd && return
1034     disable $cmd
1035     test_cmd $@ && enable $cmd
1036 }
1037
1038 check_as(){
1039     log check_as "$@"
1040     name=$1
1041     code=$2
1042     shift 2
1043     disable $name
1044     test_as $@ <<EOF && enable $name
1045 $code
1046 EOF
1047 }
1048
1049 check_inline_asm(){
1050     log check_inline_asm "$@"
1051     name="$1"
1052     code="$2"
1053     shift 2
1054     disable $name
1055     test_cc "$@" <<EOF && enable $name
1056 void foo(void){ __asm__ volatile($code); }
1057 EOF
1058 }
1059
1060 check_inline_asm_flags(){
1061     log check_inline_asm_flags "$@"
1062     name="$1"
1063     code="$2"
1064     flags=''
1065     shift 2
1066     while [ "$1" != "" ]; do
1067       append flags $1
1068       shift
1069     done;
1070     disable $name
1071     cat > $TMPC <<EOF
1072 void foo(void){ __asm__ volatile($code); }
1073 EOF
1074     log_file $TMPC
1075     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1076     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1077 }
1078
1079 check_insn(){
1080     log check_insn "$@"
1081     check_inline_asm ${1}_inline "\"$2\""
1082     check_as ${1}_external "$2"
1083 }
1084
1085 check_x86asm(){
1086     log check_x86asm "$@"
1087     name=$1
1088     shift
1089     disable $name
1090     test_x86asm "$@" && enable $name
1091 }
1092
1093 test_ld(){
1094     log test_ld "$@"
1095     type=$1
1096     shift 1
1097     flags=$(filter_out '-l*|*.so' $@)
1098     libs=$(filter '-l*|*.so' $@)
1099     test_$type $($cflags_filter $flags) || return
1100     flags=$($ldflags_filter $flags)
1101     libs=$($ldflags_filter $libs)
1102     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1103 }
1104
1105 check_ld(){
1106     log check_ld "$@"
1107     type=$1
1108     name=$2
1109     shift 2
1110     disable $name
1111     test_ld $type $@ && enable $name
1112 }
1113
1114 print_include(){
1115     hdr=$1
1116     test "${hdr%.h}" = "${hdr}" &&
1117         echo "#include $hdr"    ||
1118         echo "#include <$hdr>"
1119 }
1120
1121 test_code(){
1122     log test_code "$@"
1123     check=$1
1124     headers=$2
1125     code=$3
1126     shift 3
1127     {
1128         for hdr in $headers; do
1129             print_include $hdr
1130         done
1131         echo "int main(void) { $code; return 0; }"
1132     } | test_$check "$@"
1133 }
1134
1135 check_cppflags(){
1136     log check_cppflags "$@"
1137     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1138 #include <stdlib.h>
1139 EOF
1140 }
1141
1142 test_cflags(){
1143     log test_cflags "$@"
1144     set -- $($cflags_filter "$@")
1145     test_cc "$@" <<EOF
1146 int x;
1147 EOF
1148 }
1149
1150 check_cflags(){
1151     log check_cflags "$@"
1152     test_cflags "$@" && add_cflags "$@"
1153 }
1154
1155 check_cxxflags(){
1156     log check_cxxflags "$@"
1157     set -- $($cflags_filter "$@")
1158     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1159 int x;
1160 EOF
1161 }
1162
1163 test_objcflags(){
1164     log test_objcflags "$@"
1165     set -- $($objcflags_filter "$@")
1166     test_objcc "$@" <<EOF
1167 int x;
1168 EOF
1169 }
1170
1171 check_objcflags(){
1172     log check_objcflags "$@"
1173     test_objcflags "$@" && add_objcflags "$@"
1174 }
1175
1176 test_ldflags(){
1177     log test_ldflags "$@"
1178     set -- $($ldflags_filter "$@")
1179     test_ld "cc" "$@" <<EOF
1180 int main(void){ return 0; }
1181 EOF
1182 }
1183
1184 check_ldflags(){
1185     log check_ldflags "$@"
1186     test_ldflags "$@" && add_ldflags "$@"
1187 }
1188
1189 test_stripflags(){
1190     log test_stripflags "$@"
1191     # call test_cc to get a fresh TMPO
1192     test_cc <<EOF
1193 int main(void) { return 0; }
1194 EOF
1195     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1196 }
1197
1198 check_stripflags(){
1199     log check_stripflags "$@"
1200     test_stripflags "$@" && add_stripflags "$@"
1201 }
1202
1203 check_headers(){
1204     log check_headers "$@"
1205     headers=$1
1206     shift
1207     disable_sanitized $headers
1208     {
1209         for hdr in $headers; do
1210             print_include $hdr
1211         done
1212         echo "int x;"
1213     } | test_cpp "$@" && enable_sanitized $headers
1214 }
1215
1216 check_header_objcc(){
1217     log check_header_objcc "$@"
1218     rm -f -- "$TMPO"
1219     header=$1
1220     shift
1221     disable_sanitized $header
1222     {
1223        echo "#include <$header>"
1224        echo "int main(void) { return 0; }"
1225     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1226 }
1227
1228 check_apple_framework(){
1229     log check_apple_framework "$@"
1230     framework="$1"
1231     name="$(tolower $framework)"
1232     header="${framework}/${framework}.h"
1233     disable $name
1234     check_header_objcc $header &&
1235         enable $name && eval ${name}_extralibs='"-framework $framework"'
1236 }
1237
1238 check_func(){
1239     log check_func "$@"
1240     func=$1
1241     shift
1242     disable $func
1243     test_ld "cc" "$@" <<EOF && enable $func
1244 extern int $func();
1245 int main(void){ $func(); }
1246 EOF
1247 }
1248
1249 check_complexfunc(){
1250     log check_complexfunc "$@"
1251     func=$1
1252     narg=$2
1253     shift 2
1254     test $narg = 2 && args="f, g" || args="f * I"
1255     disable $func
1256     test_ld "cc" "$@" <<EOF && enable $func
1257 #include <complex.h>
1258 #include <math.h>
1259 float foo(complex float f, complex float g) { return $func($args); }
1260 int main(void){ return (int) foo; }
1261 EOF
1262 }
1263
1264 check_mathfunc(){
1265     log check_mathfunc "$@"
1266     func=$1
1267     narg=$2
1268     shift 2
1269     test $narg = 2 && args="f, g" || args="f"
1270     disable $func
1271     test_ld "cc" "$@" <<EOF && enable $func
1272 #include <math.h>
1273 float foo(float f, float g) { return $func($args); }
1274 int main(void){ return (int) foo; }
1275 EOF
1276 }
1277
1278 check_func_headers(){
1279     log check_func_headers "$@"
1280     headers=$1
1281     funcs=$2
1282     shift 2
1283     {
1284         for hdr in $headers; do
1285             print_include $hdr
1286         done
1287         echo "#include <stdint.h>"
1288         for func in $funcs; do
1289             echo "long check_$func(void) { return (long) $func; }"
1290         done
1291         echo "int main(void) { int ret = 0;"
1292         # LTO could optimize out the test functions without this
1293         for func in $funcs; do
1294             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1295         done
1296         echo "return ret; }"
1297     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1298 }
1299
1300 check_class_headers_cpp(){
1301     log check_class_headers_cpp "$@"
1302     headers=$1
1303     classes=$2
1304     shift 2
1305     {
1306         for hdr in $headers; do
1307             echo "#include <$hdr>"
1308         done
1309         echo "int main(void) { "
1310         i=1
1311         for class in $classes; do
1312             echo "$class obj$i;"
1313             i=$(expr $i + 1)
1314         done
1315         echo "return 0; }"
1316     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1317 }
1318
1319 test_cpp_condition(){
1320     log test_cpp_condition "$@"
1321     header=$1
1322     condition=$2
1323     shift 2
1324     test_cpp "$@" <<EOF
1325 #include <$header>
1326 #if !($condition)
1327 #error "unsatisfied condition: $condition"
1328 #endif
1329 EOF
1330 }
1331
1332 check_cpp_condition(){
1333     log check_cpp_condition "$@"
1334     name=$1
1335     shift 1
1336     disable $name
1337     test_cpp_condition "$@" && enable $name
1338 }
1339
1340 test_cflags_cc(){
1341     log test_cflags_cc "$@"
1342     flags=$1
1343     header=$2
1344     condition=$3
1345     shift 3
1346     set -- $($cflags_filter "$flags")
1347     test_cc "$@" <<EOF
1348 #include <$header>
1349 #if !($condition)
1350 #error "unsatisfied condition: $condition"
1351 #endif
1352 EOF
1353 }
1354
1355 check_lib(){
1356     log check_lib "$@"
1357     name="$1"
1358     headers="$2"
1359     funcs="$3"
1360     shift 3
1361     disable $name
1362     check_func_headers "$headers" "$funcs" "$@" &&
1363         enable $name && eval ${name}_extralibs="\$@"
1364 }
1365
1366 check_lib_cpp(){
1367     log check_lib_cpp "$@"
1368     name="$1"
1369     headers="$2"
1370     classes="$3"
1371     shift 3
1372     disable $name
1373     check_class_headers_cpp "$headers" "$classes" "$@" &&
1374         enable $name && eval ${name}_extralibs="\$@"
1375 }
1376
1377 test_pkg_config(){
1378     log test_pkg_config "$@"
1379     name="$1"
1380     pkg_version="$2"
1381     pkg="${2%% *}"
1382     headers="$3"
1383     funcs="$4"
1384     shift 4
1385     disable $name
1386     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1387     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1388     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1389     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1390         enable $name &&
1391         set_sanitized "${name}_cflags"    $pkg_cflags &&
1392         set_sanitized "${name}_extralibs" $pkg_libs
1393 }
1394
1395 check_pkg_config(){
1396     log check_pkg_config "$@"
1397     name="$1"
1398     test_pkg_config "$@" &&
1399         eval add_cflags \$${name}_cflags
1400 }
1401
1402 test_exec(){
1403     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1404 }
1405
1406 check_exec_crash(){
1407     log check_exec_crash "$@"
1408     code=$(cat)
1409
1410     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1411     # are safe but may not be available everywhere.  Thus we use
1412     # raise(SIGTERM) instead.  The check is run in a subshell so we
1413     # can redirect the "Terminated" message from the shell.  SIGBUS
1414     # is not defined by standard C so it is used conditionally.
1415
1416     (test_exec "$@") >> $logfile 2>&1 <<EOF
1417 #include <signal.h>
1418 static void sighandler(int sig){
1419     raise(SIGTERM);
1420 }
1421 int foo(void){
1422     $code
1423 }
1424 int (*func_ptr)(void) = foo;
1425 int main(void){
1426     signal(SIGILL, sighandler);
1427     signal(SIGFPE, sighandler);
1428     signal(SIGSEGV, sighandler);
1429 #ifdef SIGBUS
1430     signal(SIGBUS, sighandler);
1431 #endif
1432     return func_ptr();
1433 }
1434 EOF
1435 }
1436
1437 check_type(){
1438     log check_type "$@"
1439     headers=$1
1440     type=$2
1441     shift 2
1442     disable_sanitized "$type"
1443     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1444 }
1445
1446 check_struct(){
1447     log check_struct "$@"
1448     headers=$1
1449     struct=$2
1450     member=$3
1451     shift 3
1452     disable_sanitized "${struct}_${member}"
1453     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1454         enable_sanitized "${struct}_${member}"
1455 }
1456
1457 check_builtin(){
1458     log check_builtin "$@"
1459     name=$1
1460     headers=$2
1461     builtin=$3
1462     shift 3
1463     disable "$name"
1464     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1465 }
1466
1467 check_compile_assert(){
1468     log check_compile_assert "$@"
1469     name=$1
1470     headers=$2
1471     condition=$3
1472     shift 3
1473     disable "$name"
1474     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1475 }
1476
1477 check_cc(){
1478     log check_cc "$@"
1479     name=$1
1480     shift
1481     disable "$name"
1482     test_code cc "$@" && enable "$name"
1483 }
1484
1485 require(){
1486     log require "$@"
1487     name_version="$1"
1488     name="${1%% *}"
1489     shift
1490     check_lib $name "$@" || die "ERROR: $name_version not found"
1491 }
1492
1493 require_cc(){
1494     log require_cc "$@"
1495     name="$1"
1496     check_cc "$@" || die "ERROR: $name failed"
1497 }
1498
1499 require_cpp(){
1500     name="$1"
1501     headers="$2"
1502     classes="$3"
1503     shift 3
1504     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1505 }
1506
1507 require_headers(){
1508     log require_headers "$@"
1509     headers="$1"
1510     check_headers "$@" || die "ERROR: $headers not found"
1511 }
1512
1513 require_cpp_condition(){
1514     log require_cpp_condition "$@"
1515     condition="$3"
1516     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1517 }
1518
1519 require_pkg_config(){
1520     log require_pkg_config "$@"
1521     pkg_version="$2"
1522     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1523 }
1524
1525 test_host_cc(){
1526     log test_host_cc "$@"
1527     cat > $TMPC
1528     log_file $TMPC
1529     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1530 }
1531
1532 test_host_cpp(){
1533     log test_host_cpp "$@"
1534     cat > $TMPC
1535     log_file $TMPC
1536     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1537 }
1538
1539 check_host_cppflags(){
1540     log check_host_cppflags "$@"
1541     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1542 #include <stdlib.h>
1543 EOF
1544 }
1545
1546 check_host_cflags(){
1547     log check_host_cflags "$@"
1548     set -- $($host_cflags_filter "$@")
1549     test_host_cc "$@" <<EOF && append host_cflags "$@"
1550 int x;
1551 EOF
1552 }
1553
1554 test_host_cpp_condition(){
1555     log test_host_cpp_condition "$@"
1556     header=$1
1557     condition=$2
1558     shift 2
1559     test_host_cpp "$@" <<EOF
1560 #include <$header>
1561 #if !($condition)
1562 #error "unsatisfied condition: $condition"
1563 #endif
1564 EOF
1565 }
1566
1567 check_host_cpp_condition(){
1568     log check_host_cpp_condition "$@"
1569     name=$1
1570     shift 1
1571     disable $name
1572     test_host_cpp_condition "$@" && enable $name
1573 }
1574
1575 cp_if_changed(){
1576     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1577     mkdir -p "$(dirname $2)"
1578     cp -f "$1" "$2"
1579 }
1580
1581 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1582 # system-dependent things.
1583
1584 AVCODEC_COMPONENTS="
1585     bsfs
1586     decoders
1587     encoders
1588     hwaccels
1589     parsers
1590 "
1591
1592 AVDEVICE_COMPONENTS="
1593     indevs
1594     outdevs
1595 "
1596
1597 AVFILTER_COMPONENTS="
1598     filters
1599 "
1600
1601 AVFORMAT_COMPONENTS="
1602     demuxers
1603     muxers
1604     protocols
1605 "
1606
1607 COMPONENT_LIST="
1608     $AVCODEC_COMPONENTS
1609     $AVDEVICE_COMPONENTS
1610     $AVFILTER_COMPONENTS
1611     $AVFORMAT_COMPONENTS
1612 "
1613
1614 EXAMPLE_LIST="
1615     avio_dir_cmd_example
1616     avio_reading_example
1617     decode_audio_example
1618     decode_video_example
1619     demuxing_decoding_example
1620     encode_audio_example
1621     encode_video_example
1622     extract_mvs_example
1623     filter_audio_example
1624     filtering_audio_example
1625     filtering_video_example
1626     http_multiclient_example
1627     hw_decode_example
1628     metadata_example
1629     muxing_example
1630     qsvdec_example
1631     remuxing_example
1632     resampling_audio_example
1633     scaling_video_example
1634     transcode_aac_example
1635     transcoding_example
1636     vaapi_encode_example
1637     vaapi_transcode_example
1638 "
1639
1640 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1641     alsa
1642     appkit
1643     avfoundation
1644     bzlib
1645     coreimage
1646     iconv
1647     libxcb
1648     libxcb_shm
1649     libxcb_shape
1650     libxcb_xfixes
1651     lzma
1652     schannel
1653     sdl2
1654     securetransport
1655     sndio
1656     xlib
1657     zlib
1658 "
1659
1660 EXTERNAL_LIBRARY_GPL_LIST="
1661     avisynth
1662     frei0r
1663     libcdio
1664     libdavs2
1665     librubberband
1666     libvidstab
1667     libx264
1668     libx265
1669     libxavs
1670     libxvid
1671 "
1672
1673 EXTERNAL_LIBRARY_NONFREE_LIST="
1674     decklink
1675     libndi_newtek
1676     libfdk_aac
1677     openssl
1678     libtls
1679 "
1680
1681 EXTERNAL_LIBRARY_VERSION3_LIST="
1682     gmp
1683     liblensfun
1684     libopencore_amrnb
1685     libopencore_amrwb
1686     libvmaf
1687     libvo_amrwbenc
1688     mbedtls
1689     rkmpp
1690 "
1691
1692 EXTERNAL_LIBRARY_GPLV3_LIST="
1693     libsmbclient
1694 "
1695
1696 EXTERNAL_LIBRARY_LIST="
1697     $EXTERNAL_LIBRARY_GPL_LIST
1698     $EXTERNAL_LIBRARY_NONFREE_LIST
1699     $EXTERNAL_LIBRARY_VERSION3_LIST
1700     $EXTERNAL_LIBRARY_GPLV3_LIST
1701     chromaprint
1702     gcrypt
1703     gnutls
1704     jni
1705     ladspa
1706     libaom
1707     libass
1708     libbluray
1709     libbs2b
1710     libcaca
1711     libcelt
1712     libcodec2
1713     libdc1394
1714     libdrm
1715     libflite
1716     libfontconfig
1717     libfreetype
1718     libfribidi
1719     libgme
1720     libgsm
1721     libiec61883
1722     libilbc
1723     libjack
1724     libklvanc
1725     libkvazaar
1726     libmodplug
1727     libmp3lame
1728     libmysofa
1729     libopencv
1730     libopenh264
1731     libopenjpeg
1732     libopenmpt
1733     libopus
1734     libpulse
1735     librsvg
1736     librtmp
1737     libshine
1738     libsmbclient
1739     libsnappy
1740     libsoxr
1741     libspeex
1742     libsrt
1743     libssh
1744     libtensorflow
1745     libtesseract
1746     libtheora
1747     libtwolame
1748     libv4l2
1749     libvorbis
1750     libvpx
1751     libwavpack
1752     libwebp
1753     libxml2
1754     libzimg
1755     libzmq
1756     libzvbi
1757     lv2
1758     mediacodec
1759     openal
1760     opengl
1761     vapoursynth
1762 "
1763
1764 HWACCEL_AUTODETECT_LIBRARY_LIST="
1765     amf
1766     audiotoolbox
1767     crystalhd
1768     cuda
1769     cuvid
1770     d3d11va
1771     dxva2
1772     ffnvcodec
1773     nvdec
1774     nvenc
1775     vaapi
1776     vdpau
1777     videotoolbox
1778     v4l2_m2m
1779     xvmc
1780 "
1781
1782 # catchall list of things that require external libs to link
1783 EXTRALIBS_LIST="
1784     cpu_init
1785     cws2fws
1786 "
1787
1788 HWACCEL_LIBRARY_NONFREE_LIST="
1789     cuda_sdk
1790     libnpp
1791 "
1792
1793 HWACCEL_LIBRARY_LIST="
1794     $HWACCEL_LIBRARY_NONFREE_LIST
1795     libmfx
1796     mmal
1797     omx
1798     opencl
1799 "
1800
1801 DOCUMENT_LIST="
1802     doc
1803     htmlpages
1804     manpages
1805     podpages
1806     txtpages
1807 "
1808
1809 FEATURE_LIST="
1810     ftrapv
1811     gray
1812     hardcoded_tables
1813     omx_rpi
1814     runtime_cpudetect
1815     safe_bitstream_reader
1816     shared
1817     small
1818     static
1819     swscale_alpha
1820 "
1821
1822 # this list should be kept in linking order
1823 LIBRARY_LIST="
1824     avdevice
1825     avfilter
1826     swscale
1827     postproc
1828     avformat
1829     avcodec
1830     swresample
1831     avresample
1832     avutil
1833 "
1834
1835 LICENSE_LIST="
1836     gpl
1837     nonfree
1838     version3
1839 "
1840
1841 PROGRAM_LIST="
1842     ffplay
1843     ffprobe
1844     ffmpeg
1845 "
1846
1847 SUBSYSTEM_LIST="
1848     dct
1849     dwt
1850     error_resilience
1851     faan
1852     fast_unaligned
1853     fft
1854     lsp
1855     lzo
1856     mdct
1857     pixelutils
1858     network
1859     rdft
1860 "
1861
1862 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1863 CONFIG_LIST="
1864     $DOCUMENT_LIST
1865     $EXAMPLE_LIST
1866     $EXTERNAL_LIBRARY_LIST
1867     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1868     $HWACCEL_LIBRARY_LIST
1869     $HWACCEL_AUTODETECT_LIBRARY_LIST
1870     $FEATURE_LIST
1871     $LICENSE_LIST
1872     $LIBRARY_LIST
1873     $PROGRAM_LIST
1874     $SUBSYSTEM_LIST
1875     autodetect
1876     fontconfig
1877     linux_perf
1878     memory_poisoning
1879     neon_clobber_test
1880     ossfuzz
1881     pic
1882     thumb
1883     valgrind_backtrace
1884     xmm_clobber_test
1885     $COMPONENT_LIST
1886 "
1887
1888 THREADS_LIST="
1889     pthreads
1890     os2threads
1891     w32threads
1892 "
1893
1894 ATOMICS_LIST="
1895     atomics_gcc
1896     atomics_suncc
1897     atomics_win32
1898 "
1899
1900 AUTODETECT_LIBS="
1901     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1902     $HWACCEL_AUTODETECT_LIBRARY_LIST
1903     $THREADS_LIST
1904 "
1905
1906 ARCH_LIST="
1907     aarch64
1908     alpha
1909     arm
1910     avr32
1911     avr32_ap
1912     avr32_uc
1913     bfin
1914     ia64
1915     m68k
1916     mips
1917     mips64
1918     parisc
1919     ppc
1920     ppc64
1921     s390
1922     sh4
1923     sparc
1924     sparc64
1925     tilegx
1926     tilepro
1927     tomi
1928     x86
1929     x86_32
1930     x86_64
1931 "
1932
1933 ARCH_EXT_LIST_ARM="
1934     armv5te
1935     armv6
1936     armv6t2
1937     armv8
1938     neon
1939     vfp
1940     vfpv3
1941     setend
1942 "
1943
1944 ARCH_EXT_LIST_MIPS="
1945     mipsfpu
1946     mips32r2
1947     mips32r5
1948     mips64r2
1949     mips32r6
1950     mips64r6
1951     mipsdsp
1952     mipsdspr2
1953     msa
1954 "
1955
1956 ARCH_EXT_LIST_LOONGSON="
1957     loongson2
1958     loongson3
1959     mmi
1960 "
1961
1962 ARCH_EXT_LIST_X86_SIMD="
1963     aesni
1964     amd3dnow
1965     amd3dnowext
1966     avx
1967     avx2
1968     avx512
1969     fma3
1970     fma4
1971     mmx
1972     mmxext
1973     sse
1974     sse2
1975     sse3
1976     sse4
1977     sse42
1978     ssse3
1979     xop
1980 "
1981
1982 ARCH_EXT_LIST_PPC="
1983     altivec
1984     dcbzl
1985     ldbrx
1986     power8
1987     ppc4xx
1988     vsx
1989 "
1990
1991 ARCH_EXT_LIST_X86="
1992     $ARCH_EXT_LIST_X86_SIMD
1993     cpunop
1994     i686
1995 "
1996
1997 ARCH_EXT_LIST="
1998     $ARCH_EXT_LIST_ARM
1999     $ARCH_EXT_LIST_PPC
2000     $ARCH_EXT_LIST_X86
2001     $ARCH_EXT_LIST_MIPS
2002     $ARCH_EXT_LIST_LOONGSON
2003 "
2004
2005 ARCH_FEATURES="
2006     aligned_stack
2007     fast_64bit
2008     fast_clz
2009     fast_cmov
2010     local_aligned
2011     simd_align_16
2012     simd_align_32
2013     simd_align_64
2014 "
2015
2016 BUILTIN_LIST="
2017     atomic_cas_ptr
2018     machine_rw_barrier
2019     MemoryBarrier
2020     mm_empty
2021     rdtsc
2022     sem_timedwait
2023     sync_val_compare_and_swap
2024 "
2025 HAVE_LIST_CMDLINE="
2026     inline_asm
2027     symver
2028     x86asm
2029 "
2030
2031 HAVE_LIST_PUB="
2032     bigendian
2033     fast_unaligned
2034 "
2035
2036 HEADERS_LIST="
2037     arpa_inet_h
2038     asm_types_h
2039     cdio_paranoia_h
2040     cdio_paranoia_paranoia_h
2041     cuda_h
2042     dispatch_dispatch_h
2043     dev_bktr_ioctl_bt848_h
2044     dev_bktr_ioctl_meteor_h
2045     dev_ic_bt8xx_h
2046     dev_video_bktr_ioctl_bt848_h
2047     dev_video_meteor_ioctl_meteor_h
2048     direct_h
2049     dirent_h
2050     dxgidebug_h
2051     dxva_h
2052     ES2_gl_h
2053     gsm_h
2054     io_h
2055     linux_perf_event_h
2056     machine_ioctl_bt848_h
2057     machine_ioctl_meteor_h
2058     malloc_h
2059     opencv2_core_core_c_h
2060     OpenGL_gl3_h
2061     poll_h
2062     sys_param_h
2063     sys_resource_h
2064     sys_select_h
2065     sys_soundcard_h
2066     sys_time_h
2067     sys_un_h
2068     sys_videoio_h
2069     termios_h
2070     udplite_h
2071     unistd_h
2072     valgrind_valgrind_h
2073     windows_h
2074     winsock2_h
2075 "
2076
2077 INTRINSICS_LIST="
2078     intrinsics_neon
2079 "
2080
2081 COMPLEX_FUNCS="
2082     cabs
2083     cexp
2084 "
2085
2086 MATH_FUNCS="
2087     atanf
2088     atan2f
2089     cbrt
2090     cbrtf
2091     copysign
2092     cosf
2093     erf
2094     exp2
2095     exp2f
2096     expf
2097     hypot
2098     isfinite
2099     isinf
2100     isnan
2101     ldexpf
2102     llrint
2103     llrintf
2104     log2
2105     log2f
2106     log10f
2107     lrint
2108     lrintf
2109     powf
2110     rint
2111     round
2112     roundf
2113     sinf
2114     trunc
2115     truncf
2116 "
2117
2118 SYSTEM_FEATURES="
2119     dos_paths
2120     libc_msvcrt
2121     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2122     section_data_rel_ro
2123     threads
2124     uwp
2125     winrt
2126 "
2127
2128 SYSTEM_FUNCS="
2129     access
2130     aligned_malloc
2131     arc4random
2132     clock_gettime
2133     closesocket
2134     CommandLineToArgvW
2135     fcntl
2136     getaddrinfo
2137     gethrtime
2138     getopt
2139     GetProcessAffinityMask
2140     GetProcessMemoryInfo
2141     GetProcessTimes
2142     getrusage
2143     GetSystemTimeAsFileTime
2144     gettimeofday
2145     glob
2146     glXGetProcAddress
2147     gmtime_r
2148     inet_aton
2149     isatty
2150     kbhit
2151     localtime_r
2152     lstat
2153     lzo1x_999_compress
2154     mach_absolute_time
2155     MapViewOfFile
2156     memalign
2157     mkstemp
2158     mmap
2159     mprotect
2160     nanosleep
2161     PeekNamedPipe
2162     posix_memalign
2163     pthread_cancel
2164     sched_getaffinity
2165     SecItemImport
2166     SetConsoleTextAttribute
2167     SetConsoleCtrlHandler
2168     setmode
2169     setrlimit
2170     Sleep
2171     strerror_r
2172     sysconf
2173     sysctl
2174     usleep
2175     UTGetOSTypeFromString
2176     VirtualAlloc
2177     wglGetProcAddress
2178 "
2179
2180 SYSTEM_LIBRARIES="
2181     bcrypt
2182     vaapi_drm
2183     vaapi_x11
2184     vdpau_x11
2185 "
2186
2187 TOOLCHAIN_FEATURES="
2188     as_arch_directive
2189     as_dn_directive
2190     as_fpu_directive
2191     as_func
2192     as_object_arch
2193     asm_mod_q
2194     blocks_extension
2195     ebp_available
2196     ebx_available
2197     gnu_as
2198     gnu_windres
2199     ibm_asm
2200     inline_asm_direct_symbol_refs
2201     inline_asm_labels
2202     inline_asm_nonlocal_labels
2203     pragma_deprecated
2204     rsync_contimeout
2205     symver_asm_label
2206     symver_gnu_asm
2207     vfp_args
2208     xform_asm
2209     xmm_clobbers
2210 "
2211
2212 TYPES_LIST="
2213     kCMVideoCodecType_HEVC
2214     socklen_t
2215     struct_addrinfo
2216     struct_group_source_req
2217     struct_ip_mreq_source
2218     struct_ipv6_mreq
2219     struct_msghdr_msg_flags
2220     struct_pollfd
2221     struct_rusage_ru_maxrss
2222     struct_sctp_event_subscribe
2223     struct_sockaddr_in6
2224     struct_sockaddr_sa_len
2225     struct_sockaddr_storage
2226     struct_stat_st_mtim_tv_nsec
2227     struct_v4l2_frmivalenum_discrete
2228 "
2229
2230 HAVE_LIST="
2231     $ARCH_EXT_LIST
2232     $(add_suffix _external $ARCH_EXT_LIST)
2233     $(add_suffix _inline   $ARCH_EXT_LIST)
2234     $ARCH_FEATURES
2235     $BUILTIN_LIST
2236     $COMPLEX_FUNCS
2237     $HAVE_LIST_CMDLINE
2238     $HAVE_LIST_PUB
2239     $HEADERS_LIST
2240     $INTRINSICS_LIST
2241     $MATH_FUNCS
2242     $SYSTEM_FEATURES
2243     $SYSTEM_FUNCS
2244     $SYSTEM_LIBRARIES
2245     $THREADS_LIST
2246     $TOOLCHAIN_FEATURES
2247     $TYPES_LIST
2248     makeinfo
2249     makeinfo_html
2250     opencl_d3d11
2251     opencl_drm_arm
2252     opencl_drm_beignet
2253     opencl_dxva2
2254     opencl_vaapi_beignet
2255     opencl_vaapi_intel_media
2256     perl
2257     pod2man
2258     texi2html
2259 "
2260
2261 # options emitted with CONFIG_ prefix but not available on the command line
2262 CONFIG_EXTRA="
2263     aandcttables
2264     ac3dsp
2265     adts_header
2266     audio_frame_queue
2267     audiodsp
2268     blockdsp
2269     bswapdsp
2270     cabac
2271     cbs
2272     cbs_h264
2273     cbs_h265
2274     cbs_mpeg2
2275     cbs_vp9
2276     dirac_parse
2277     dnn
2278     dvprofile
2279     exif
2280     faandct
2281     faanidct
2282     fdctdsp
2283     flacdsp
2284     fmtconvert
2285     frame_thread_encoder
2286     g722dsp
2287     golomb
2288     gplv3
2289     h263dsp
2290     h264chroma
2291     h264dsp
2292     h264parse
2293     h264pred
2294     h264qpel
2295     hevcparse
2296     hpeldsp
2297     huffman
2298     huffyuvdsp
2299     huffyuvencdsp
2300     idctdsp
2301     iirfilter
2302     mdct15
2303     intrax8
2304     iso_media
2305     ividsp
2306     jpegtables
2307     lgplv3
2308     libx262
2309     llauddsp
2310     llviddsp
2311     llvidencdsp
2312     lpc
2313     lzf
2314     me_cmp
2315     mpeg_er
2316     mpegaudio
2317     mpegaudiodsp
2318     mpegaudioheader
2319     mpegvideo
2320     mpegvideoenc
2321     mss34dsp
2322     pixblockdsp
2323     qpeldsp
2324     qsv
2325     qsvdec
2326     qsvenc
2327     qsvvpp
2328     rangecoder
2329     riffdec
2330     riffenc
2331     rtpdec
2332     rtpenc_chain
2333     rv34dsp
2334     sinewin
2335     snappy
2336     srtp
2337     startcode
2338     texturedsp
2339     texturedspenc
2340     tpeldsp
2341     vaapi_1
2342     vaapi_encode
2343     vc1dsp
2344     videodsp
2345     vp3dsp
2346     vp56dsp
2347     vp8dsp
2348     wma_freqs
2349     wmv2dsp
2350 "
2351
2352 CMDLINE_SELECT="
2353     $ARCH_EXT_LIST
2354     $CONFIG_LIST
2355     $HAVE_LIST_CMDLINE
2356     $THREADS_LIST
2357     asm
2358     cross_compile
2359     debug
2360     extra_warnings
2361     logging
2362     lto
2363     optimizations
2364     rpath
2365     stripping
2366 "
2367
2368 PATHS_LIST="
2369     bindir
2370     datadir
2371     docdir
2372     incdir
2373     libdir
2374     mandir
2375     pkgconfigdir
2376     prefix
2377     shlibdir
2378     install_name_dir
2379 "
2380
2381 CMDLINE_SET="
2382     $PATHS_LIST
2383     ar
2384     arch
2385     as
2386     assert_level
2387     build_suffix
2388     cc
2389     objcc
2390     cpu
2391     cross_prefix
2392     custom_allocator
2393     cxx
2394     dep_cc
2395     doxygen
2396     env
2397     extra_version
2398     gas
2399     host_cc
2400     host_cflags
2401     host_extralibs
2402     host_ld
2403     host_ldflags
2404     host_os
2405     ignore_tests
2406     install
2407     ld
2408     ln_s
2409     logfile
2410     malloc_prefix
2411     nm
2412     optflags
2413     nvcc
2414     nvccflags
2415     pkg_config
2416     pkg_config_flags
2417     progs_suffix
2418     random_seed
2419     ranlib
2420     samples
2421     strip
2422     sws_max_filter_size
2423     sysinclude
2424     sysroot
2425     target_exec
2426     target_os
2427     target_path
2428     target_samples
2429     tempprefix
2430     toolchain
2431     valgrind
2432     x86asmexe
2433 "
2434
2435 CMDLINE_APPEND="
2436     extra_cflags
2437     extra_cxxflags
2438     extra_objcflags
2439     host_cppflags
2440 "
2441
2442 # code dependency declarations
2443
2444 # architecture extensions
2445
2446 armv5te_deps="arm"
2447 armv6_deps="arm"
2448 armv6t2_deps="arm"
2449 armv8_deps="aarch64"
2450 neon_deps_any="aarch64 arm"
2451 intrinsics_neon_deps="neon"
2452 vfp_deps_any="aarch64 arm"
2453 vfpv3_deps="vfp"
2454 setend_deps="arm"
2455
2456 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2457
2458 altivec_deps="ppc"
2459 dcbzl_deps="ppc"
2460 ldbrx_deps="ppc"
2461 ppc4xx_deps="ppc"
2462 vsx_deps="altivec"
2463 power8_deps="vsx"
2464
2465 loongson2_deps="mips"
2466 loongson3_deps="mips"
2467 mips32r2_deps="mips"
2468 mips32r5_deps="mips"
2469 mips32r6_deps="mips"
2470 mips64r2_deps="mips"
2471 mips64r6_deps="mips"
2472 mipsfpu_deps="mips"
2473 mipsdsp_deps="mips"
2474 mipsdspr2_deps="mips"
2475 mmi_deps="mips"
2476 msa_deps="mipsfpu"
2477
2478 cpunop_deps="i686"
2479 x86_64_select="i686"
2480 x86_64_suggest="fast_cmov"
2481
2482 amd3dnow_deps="mmx"
2483 amd3dnowext_deps="amd3dnow"
2484 i686_deps="x86"
2485 mmx_deps="x86"
2486 mmxext_deps="mmx"
2487 sse_deps="mmxext"
2488 sse2_deps="sse"
2489 sse3_deps="sse2"
2490 ssse3_deps="sse3"
2491 sse4_deps="ssse3"
2492 sse42_deps="sse4"
2493 aesni_deps="sse42"
2494 avx_deps="sse42"
2495 xop_deps="avx"
2496 fma3_deps="avx"
2497 fma4_deps="avx"
2498 avx2_deps="avx"
2499 avx512_deps="avx2"
2500
2501 mmx_external_deps="x86asm"
2502 mmx_inline_deps="inline_asm x86"
2503 mmx_suggest="mmx_external mmx_inline"
2504
2505 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2506     eval dep=\$${ext}_deps
2507     eval ${ext}_external_deps='"${dep}_external"'
2508     eval ${ext}_inline_deps='"${dep}_inline"'
2509     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2510 done
2511
2512 aligned_stack_if_any="aarch64 ppc x86"
2513 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2514 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2515 fast_unaligned_if_any="aarch64 ppc x86"
2516 simd_align_16_if_any="altivec neon sse"
2517 simd_align_32_if_any="avx"
2518 simd_align_64_if_any="avx512"
2519
2520 # system capabilities
2521 linux_perf_deps="linux_perf_event_h"
2522 symver_if_any="symver_asm_label symver_gnu_asm"
2523 valgrind_backtrace_conflict="optimizations"
2524 valgrind_backtrace_deps="valgrind_valgrind_h"
2525
2526 # threading support
2527 atomics_gcc_if="sync_val_compare_and_swap"
2528 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2529 atomics_win32_if="MemoryBarrier"
2530 atomics_native_if_any="$ATOMICS_LIST"
2531 w32threads_deps="atomics_native"
2532 threads_if_any="$THREADS_LIST"
2533
2534 # subsystems
2535 cbs_h264_select="cbs golomb"
2536 cbs_h265_select="cbs golomb"
2537 cbs_mpeg2_select="cbs"
2538 cbs_vp9_select="cbs"
2539 dct_select="rdft"
2540 dirac_parse_select="golomb"
2541 dnn_suggest="libtensorflow"
2542 error_resilience_select="me_cmp"
2543 faandct_deps="faan"
2544 faandct_select="fdctdsp"
2545 faanidct_deps="faan"
2546 faanidct_select="idctdsp"
2547 h264dsp_select="startcode"
2548 hevcparse_select="golomb"
2549 frame_thread_encoder_deps="encoders threads"
2550 intrax8_select="blockdsp idctdsp"
2551 mdct_select="fft"
2552 mdct15_select="fft"
2553 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2554 mpeg_er_select="error_resilience"
2555 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2556 mpegaudiodsp_select="dct"
2557 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2558 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2559 vc1dsp_select="h264chroma qpeldsp startcode"
2560 rdft_select="fft"
2561
2562 # decoders / encoders
2563 aac_decoder_select="adts_header mdct15 mdct sinewin"
2564 aac_fixed_decoder_select="adts_header mdct sinewin"
2565 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2566 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2567 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2568 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2569 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2570 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2571 adpcm_g722_decoder_select="g722dsp"
2572 adpcm_g722_encoder_select="g722dsp"
2573 aic_decoder_select="golomb idctdsp"
2574 alac_encoder_select="lpc"
2575 als_decoder_select="bswapdsp"
2576 amrnb_decoder_select="lsp"
2577 amrwb_decoder_select="lsp"
2578 amv_decoder_select="sp5x_decoder exif"
2579 amv_encoder_select="jpegtables mpegvideoenc"
2580 ape_decoder_select="bswapdsp llauddsp"
2581 apng_decoder_deps="zlib"
2582 apng_encoder_deps="zlib"
2583 apng_encoder_select="llvidencdsp"
2584 aptx_decoder_select="audio_frame_queue"
2585 aptx_encoder_select="audio_frame_queue"
2586 aptx_hd_decoder_select="audio_frame_queue"
2587 aptx_hd_encoder_select="audio_frame_queue"
2588 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2589 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2590 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2591 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2592 atrac1_decoder_select="mdct sinewin"
2593 atrac3_decoder_select="mdct"
2594 atrac3p_decoder_select="mdct sinewin"
2595 atrac9_decoder_select="mdct"
2596 avrn_decoder_select="exif jpegtables"
2597 bink_decoder_select="blockdsp hpeldsp"
2598 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2599 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2600 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2601 clearvideo_decoder_select="idctdsp"
2602 cllc_decoder_select="bswapdsp"
2603 comfortnoise_encoder_select="lpc"
2604 cook_decoder_select="audiodsp mdct sinewin"
2605 cscd_decoder_select="lzo"
2606 cscd_decoder_suggest="zlib"
2607 dca_decoder_select="mdct"
2608 dds_decoder_select="texturedsp"
2609 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2610 dnxhd_decoder_select="blockdsp idctdsp"
2611 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2612 dolby_e_decoder_select="mdct"
2613 dvvideo_decoder_select="dvprofile idctdsp"
2614 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2615 dxa_decoder_deps="zlib"
2616 dxv_decoder_select="lzf texturedsp"
2617 eac3_decoder_select="ac3_decoder"
2618 eac3_encoder_select="ac3_encoder"
2619 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2620 eatgq_decoder_select="aandcttables"
2621 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2622 exr_decoder_deps="zlib"
2623 ffv1_decoder_select="rangecoder"
2624 ffv1_encoder_select="rangecoder"
2625 ffvhuff_decoder_select="huffyuv_decoder"
2626 ffvhuff_encoder_select="huffyuv_encoder"
2627 fic_decoder_select="golomb"
2628 flac_decoder_select="flacdsp"
2629 flac_encoder_select="bswapdsp flacdsp lpc"
2630 flashsv2_decoder_deps="zlib"
2631 flashsv2_encoder_deps="zlib"
2632 flashsv_decoder_deps="zlib"
2633 flashsv_encoder_deps="zlib"
2634 flv_decoder_select="h263_decoder"
2635 flv_encoder_select="h263_encoder"
2636 fourxm_decoder_select="blockdsp bswapdsp"
2637 fraps_decoder_select="bswapdsp huffman"
2638 g2m_decoder_deps="zlib"
2639 g2m_decoder_select="blockdsp idctdsp jpegtables"
2640 g729_decoder_select="audiodsp"
2641 h261_decoder_select="mpegvideo"
2642 h261_encoder_select="mpegvideoenc"
2643 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2644 h263_encoder_select="h263dsp mpegvideoenc"
2645 h263i_decoder_select="h263_decoder"
2646 h263p_decoder_select="h263_decoder"
2647 h263p_encoder_select="h263_encoder"
2648 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2649 h264_decoder_suggest="error_resilience"
2650 hap_decoder_select="snappy texturedsp"
2651 hap_encoder_deps="libsnappy"
2652 hap_encoder_select="texturedspenc"
2653 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2654 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2655 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2656 iac_decoder_select="imc_decoder"
2657 imc_decoder_select="bswapdsp fft mdct sinewin"
2658 indeo3_decoder_select="hpeldsp"
2659 indeo4_decoder_select="ividsp"
2660 indeo5_decoder_select="ividsp"
2661 interplay_video_decoder_select="hpeldsp"
2662 jpegls_decoder_select="mjpeg_decoder"
2663 jv_decoder_select="blockdsp"
2664 lagarith_decoder_select="llviddsp"
2665 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2666 magicyuv_decoder_select="llviddsp"
2667 magicyuv_encoder_select="llvidencdsp"
2668 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2669 metasound_decoder_select="lsp mdct sinewin"
2670 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2671 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2672 mjpeg_encoder_select="jpegtables mpegvideoenc"
2673 mjpegb_decoder_select="mjpeg_decoder"
2674 mlp_decoder_select="mlp_parser"
2675 mlp_encoder_select="lpc"
2676 motionpixels_decoder_select="bswapdsp"
2677 mp1_decoder_select="mpegaudio"
2678 mp1float_decoder_select="mpegaudio"
2679 mp2_decoder_select="mpegaudio"
2680 mp2float_decoder_select="mpegaudio"
2681 mp3_decoder_select="mpegaudio"
2682 mp3adu_decoder_select="mpegaudio"
2683 mp3adufloat_decoder_select="mpegaudio"
2684 mp3float_decoder_select="mpegaudio"
2685 mp3on4_decoder_select="mpegaudio"
2686 mp3on4float_decoder_select="mpegaudio"
2687 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2688 mpc8_decoder_select="mpegaudiodsp"
2689 mpegvideo_decoder_select="mpegvideo"
2690 mpeg1video_decoder_select="mpegvideo"
2691 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2692 mpeg2video_decoder_select="mpegvideo"
2693 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2694 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2695 mpeg4_encoder_select="h263_encoder"
2696 msa1_decoder_select="mss34dsp"
2697 mscc_decoder_deps="zlib"
2698 msmpeg4v1_decoder_select="h263_decoder"
2699 msmpeg4v2_decoder_select="h263_decoder"
2700 msmpeg4v2_encoder_select="h263_encoder"
2701 msmpeg4v3_decoder_select="h263_decoder"
2702 msmpeg4v3_encoder_select="h263_encoder"
2703 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2704 mts2_decoder_select="mss34dsp"
2705 mwsc_decoder_deps="zlib"
2706 mxpeg_decoder_select="mjpeg_decoder"
2707 nellymoser_decoder_select="mdct sinewin"
2708 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2709 nuv_decoder_select="idctdsp lzo"
2710 on2avc_decoder_select="mdct"
2711 opus_decoder_deps="swresample"
2712 opus_decoder_select="mdct15"
2713 opus_encoder_select="audio_frame_queue mdct15"
2714 png_decoder_deps="zlib"
2715 png_encoder_deps="zlib"
2716 png_encoder_select="llvidencdsp"
2717 prores_decoder_select="blockdsp idctdsp"
2718 prores_encoder_select="fdctdsp"
2719 qcelp_decoder_select="lsp"
2720 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2721 ra_144_decoder_select="audiodsp"
2722 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2723 ralf_decoder_select="golomb"
2724 rasc_decoder_deps="zlib"
2725 rawvideo_decoder_select="bswapdsp"
2726 rscc_decoder_deps="zlib"
2727 rtjpeg_decoder_select="me_cmp"
2728 rv10_decoder_select="h263_decoder"
2729 rv10_encoder_select="h263_encoder"
2730 rv20_decoder_select="h263_decoder"
2731 rv20_encoder_select="h263_encoder"
2732 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2733 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2734 screenpresso_decoder_deps="zlib"
2735 shorten_decoder_select="bswapdsp"
2736 sipr_decoder_select="lsp"
2737 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2738 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2739 sonic_decoder_select="golomb rangecoder"
2740 sonic_encoder_select="golomb rangecoder"
2741 sonic_ls_encoder_select="golomb rangecoder"
2742 sp5x_decoder_select="mjpeg_decoder"
2743 srgc_decoder_deps="zlib"
2744 svq1_decoder_select="hpeldsp"
2745 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2746 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2747 svq3_decoder_suggest="zlib"
2748 tak_decoder_select="audiodsp"
2749 tdsc_decoder_deps="zlib"
2750 tdsc_decoder_select="mjpeg_decoder"
2751 theora_decoder_select="vp3_decoder"
2752 thp_decoder_select="mjpeg_decoder"
2753 tiff_decoder_suggest="zlib lzma"
2754 tiff_encoder_suggest="zlib"
2755 truehd_decoder_select="mlp_parser"
2756 truehd_encoder_select="lpc"
2757 truemotion2_decoder_select="bswapdsp"
2758 truespeech_decoder_select="bswapdsp"
2759 tscc_decoder_deps="zlib"
2760 twinvq_decoder_select="mdct lsp sinewin"
2761 txd_decoder_select="texturedsp"
2762 utvideo_decoder_select="bswapdsp llviddsp"
2763 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2764 vble_decoder_select="llviddsp"
2765 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2766 vc1image_decoder_select="vc1_decoder"
2767 vorbis_decoder_select="mdct"
2768 vorbis_encoder_select="audio_frame_queue mdct"
2769 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2770 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2771 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2772 vp6a_decoder_select="vp6_decoder"
2773 vp6f_decoder_select="vp6_decoder"
2774 vp7_decoder_select="h264pred videodsp vp8dsp"
2775 vp8_decoder_select="h264pred videodsp vp8dsp"
2776 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2777 wcmv_decoder_deps="zlib"
2778 webp_decoder_select="vp8_decoder exif"
2779 wmalossless_decoder_select="llauddsp"
2780 wmapro_decoder_select="mdct sinewin wma_freqs"
2781 wmav1_decoder_select="mdct sinewin wma_freqs"
2782 wmav1_encoder_select="mdct sinewin wma_freqs"
2783 wmav2_decoder_select="mdct sinewin wma_freqs"
2784 wmav2_encoder_select="mdct sinewin wma_freqs"
2785 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2786 wmv1_decoder_select="h263_decoder"
2787 wmv1_encoder_select="h263_encoder"
2788 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2789 wmv2_encoder_select="h263_encoder wmv2dsp"
2790 wmv3_decoder_select="vc1_decoder"
2791 wmv3image_decoder_select="wmv3_decoder"
2792 xma1_decoder_select="wmapro_decoder"
2793 xma2_decoder_select="wmapro_decoder"
2794 zerocodec_decoder_deps="zlib"
2795 zlib_decoder_deps="zlib"
2796 zlib_encoder_deps="zlib"
2797 zmbv_decoder_deps="zlib"
2798 zmbv_encoder_deps="zlib"
2799
2800 # hardware accelerators
2801 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2802 cuda_deps="ffnvcodec"
2803 cuvid_deps="ffnvcodec"
2804 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2805 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2806 ffnvcodec_deps_any="libdl LoadLibrary"
2807 nvdec_deps="ffnvcodec"
2808 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2809 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2810 xvmc_deps="X11_extensions_XvMClib_h"
2811
2812 h263_vaapi_hwaccel_deps="vaapi"
2813 h263_vaapi_hwaccel_select="h263_decoder"
2814 h263_videotoolbox_hwaccel_deps="videotoolbox"
2815 h263_videotoolbox_hwaccel_select="h263_decoder"
2816 h264_d3d11va_hwaccel_deps="d3d11va"
2817 h264_d3d11va_hwaccel_select="h264_decoder"
2818 h264_d3d11va2_hwaccel_deps="d3d11va"
2819 h264_d3d11va2_hwaccel_select="h264_decoder"
2820 h264_dxva2_hwaccel_deps="dxva2"
2821 h264_dxva2_hwaccel_select="h264_decoder"
2822 h264_nvdec_hwaccel_deps="nvdec"
2823 h264_nvdec_hwaccel_select="h264_decoder"
2824 h264_vaapi_hwaccel_deps="vaapi"
2825 h264_vaapi_hwaccel_select="h264_decoder"
2826 h264_vdpau_hwaccel_deps="vdpau"
2827 h264_vdpau_hwaccel_select="h264_decoder"
2828 h264_videotoolbox_hwaccel_deps="videotoolbox"
2829 h264_videotoolbox_hwaccel_select="h264_decoder"
2830 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2831 hevc_d3d11va_hwaccel_select="hevc_decoder"
2832 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2833 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2834 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2835 hevc_dxva2_hwaccel_select="hevc_decoder"
2836 hevc_nvdec_hwaccel_deps="nvdec"
2837 hevc_nvdec_hwaccel_select="hevc_decoder"
2838 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2839 hevc_vaapi_hwaccel_select="hevc_decoder"
2840 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2841 hevc_vdpau_hwaccel_select="hevc_decoder"
2842 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2843 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2844 mjpeg_nvdec_hwaccel_deps="nvdec"
2845 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2846 mjpeg_vaapi_hwaccel_deps="vaapi"
2847 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2848 mpeg_xvmc_hwaccel_deps="xvmc"
2849 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2850 mpeg1_nvdec_hwaccel_deps="nvdec"
2851 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2852 mpeg1_vdpau_hwaccel_deps="vdpau"
2853 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2854 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2855 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2856 mpeg1_xvmc_hwaccel_deps="xvmc"
2857 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2858 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2859 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2860 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2861 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2862 mpeg2_dxva2_hwaccel_deps="dxva2"
2863 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2864 mpeg2_nvdec_hwaccel_deps="nvdec"
2865 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2866 mpeg2_vaapi_hwaccel_deps="vaapi"
2867 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2868 mpeg2_vdpau_hwaccel_deps="vdpau"
2869 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2870 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2871 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2872 mpeg2_xvmc_hwaccel_deps="xvmc"
2873 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2874 mpeg4_nvdec_hwaccel_deps="nvdec"
2875 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2876 mpeg4_vaapi_hwaccel_deps="vaapi"
2877 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2878 mpeg4_vdpau_hwaccel_deps="vdpau"
2879 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2880 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2881 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2882 vc1_d3d11va_hwaccel_deps="d3d11va"
2883 vc1_d3d11va_hwaccel_select="vc1_decoder"
2884 vc1_d3d11va2_hwaccel_deps="d3d11va"
2885 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2886 vc1_dxva2_hwaccel_deps="dxva2"
2887 vc1_dxva2_hwaccel_select="vc1_decoder"
2888 vc1_nvdec_hwaccel_deps="nvdec"
2889 vc1_nvdec_hwaccel_select="vc1_decoder"
2890 vc1_vaapi_hwaccel_deps="vaapi"
2891 vc1_vaapi_hwaccel_select="vc1_decoder"
2892 vc1_vdpau_hwaccel_deps="vdpau"
2893 vc1_vdpau_hwaccel_select="vc1_decoder"
2894 vp8_nvdec_hwaccel_deps="nvdec"
2895 vp8_nvdec_hwaccel_select="vp8_decoder"
2896 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2897 vp8_vaapi_hwaccel_select="vp8_decoder"
2898 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2899 vp9_d3d11va_hwaccel_select="vp9_decoder"
2900 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2901 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2902 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2903 vp9_dxva2_hwaccel_select="vp9_decoder"
2904 vp9_nvdec_hwaccel_deps="nvdec"
2905 vp9_nvdec_hwaccel_select="vp9_decoder"
2906 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2907 vp9_vaapi_hwaccel_select="vp9_decoder"
2908 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2909 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2910 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2911 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2912 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2913 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2914
2915 # hardware-accelerated codecs
2916 omx_deps="libdl pthreads"
2917 omx_rpi_select="omx"
2918 qsv_deps="libmfx"
2919 qsvdec_select="qsv"
2920 qsvenc_select="qsv"
2921 qsvvpp_select="qsv"
2922 vaapi_encode_deps="vaapi"
2923 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2924
2925 hwupload_cuda_filter_deps="ffnvcodec"
2926 scale_npp_filter_deps="ffnvcodec libnpp"
2927 scale_cuda_filter_deps="cuda_sdk"
2928 thumbnail_cuda_filter_deps="cuda_sdk"
2929
2930 amf_deps_any="libdl LoadLibrary"
2931 nvenc_deps="ffnvcodec"
2932 nvenc_deps_any="libdl LoadLibrary"
2933 nvenc_encoder_deps="nvenc"
2934
2935 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2936 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2937 h264_amf_encoder_deps="amf"
2938 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2939 h264_cuvid_decoder_deps="cuvid"
2940 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2941 h264_mediacodec_decoder_deps="mediacodec"
2942 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2943 h264_mmal_decoder_deps="mmal"
2944 h264_nvenc_encoder_deps="nvenc"
2945 h264_omx_encoder_deps="omx"
2946 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2947 h264_qsv_encoder_select="qsvenc"
2948 h264_rkmpp_decoder_deps="rkmpp"
2949 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2950 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2951 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2952 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2953 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2954 hevc_amf_encoder_deps="amf"
2955 hevc_cuvid_decoder_deps="cuvid"
2956 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2957 hevc_mediacodec_decoder_deps="mediacodec"
2958 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2959 hevc_nvenc_encoder_deps="nvenc"
2960 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2961 hevc_qsv_encoder_select="hevcparse qsvenc"
2962 hevc_rkmpp_decoder_deps="rkmpp"
2963 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2964 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2965 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2966 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2967 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2968 mjpeg_cuvid_decoder_deps="cuvid"
2969 mjpeg_qsv_encoder_deps="libmfx"
2970 mjpeg_qsv_encoder_select="qsvenc"
2971 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2972 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2973 mpeg1_cuvid_decoder_deps="cuvid"
2974 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2975 mpeg2_crystalhd_decoder_select="crystalhd"
2976 mpeg2_cuvid_decoder_deps="cuvid"
2977 mpeg2_mmal_decoder_deps="mmal"
2978 mpeg2_mediacodec_decoder_deps="mediacodec"
2979 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2980 mpeg2_qsv_encoder_select="qsvenc"
2981 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2982 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2983 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2984 mpeg4_crystalhd_decoder_select="crystalhd"
2985 mpeg4_cuvid_decoder_deps="cuvid"
2986 mpeg4_mediacodec_decoder_deps="mediacodec"
2987 mpeg4_mmal_decoder_deps="mmal"
2988 mpeg4_omx_encoder_deps="omx"
2989 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2990 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2991 msmpeg4_crystalhd_decoder_select="crystalhd"
2992 nvenc_h264_encoder_select="h264_nvenc_encoder"
2993 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2994 vc1_crystalhd_decoder_select="crystalhd"
2995 vc1_cuvid_decoder_deps="cuvid"
2996 vc1_mmal_decoder_deps="mmal"
2997 vc1_qsv_decoder_select="qsvdec vc1_parser"
2998 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2999 vp8_cuvid_decoder_deps="cuvid"
3000 vp8_mediacodec_decoder_deps="mediacodec"
3001 vp8_qsv_decoder_select="qsvdec vp8_parser"
3002 vp8_rkmpp_decoder_deps="rkmpp"
3003 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3004 vp8_vaapi_encoder_select="vaapi_encode"
3005 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3006 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3007 vp9_cuvid_decoder_deps="cuvid"
3008 vp9_mediacodec_decoder_deps="mediacodec"
3009 vp9_rkmpp_decoder_deps="rkmpp"
3010 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3011 vp9_vaapi_encoder_select="vaapi_encode"
3012 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3013 wmv3_crystalhd_decoder_select="crystalhd"
3014
3015 # parsers
3016 aac_parser_select="adts_header"
3017 h264_parser_select="golomb h264dsp h264parse"
3018 hevc_parser_select="hevcparse"
3019 mpegaudio_parser_select="mpegaudioheader"
3020 mpegvideo_parser_select="mpegvideo"
3021 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3022 vc1_parser_select="vc1dsp"
3023
3024 # bitstream_filters
3025 aac_adtstoasc_bsf_select="adts_header"
3026 eac3_core_bsf_select="ac3_parser"
3027 filter_units_bsf_select="cbs"
3028 h264_metadata_bsf_deps="const_nan"
3029 h264_metadata_bsf_select="cbs_h264"
3030 h264_redundant_pps_bsf_select="cbs_h264"
3031 hevc_metadata_bsf_select="cbs_h265"
3032 mjpeg2jpeg_bsf_select="jpegtables"
3033 mpeg2_metadata_bsf_select="cbs_mpeg2"
3034 trace_headers_bsf_select="cbs"
3035 vp9_metadata_bsf_select="cbs_vp9"
3036
3037 # external libraries
3038 aac_at_decoder_deps="audiotoolbox"
3039 aac_at_decoder_select="aac_adtstoasc_bsf"
3040 ac3_at_decoder_deps="audiotoolbox"
3041 ac3_at_decoder_select="ac3_parser"
3042 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3043 alac_at_decoder_deps="audiotoolbox"
3044 amr_nb_at_decoder_deps="audiotoolbox"
3045 avisynth_deps_any="libdl LoadLibrary"
3046 avisynth_demuxer_deps="avisynth"
3047 avisynth_demuxer_select="riffdec"
3048 eac3_at_decoder_deps="audiotoolbox"
3049 eac3_at_decoder_select="ac3_parser"
3050 gsm_ms_at_decoder_deps="audiotoolbox"
3051 ilbc_at_decoder_deps="audiotoolbox"
3052 mp1_at_decoder_deps="audiotoolbox"
3053 mp2_at_decoder_deps="audiotoolbox"
3054 mp3_at_decoder_deps="audiotoolbox"
3055 mp1_at_decoder_select="mpegaudioheader"
3056 mp2_at_decoder_select="mpegaudioheader"
3057 mp3_at_decoder_select="mpegaudioheader"
3058 pcm_alaw_at_decoder_deps="audiotoolbox"
3059 pcm_mulaw_at_decoder_deps="audiotoolbox"
3060 qdmc_at_decoder_deps="audiotoolbox"
3061 qdm2_at_decoder_deps="audiotoolbox"
3062 aac_at_encoder_deps="audiotoolbox"
3063 aac_at_encoder_select="audio_frame_queue"
3064 alac_at_encoder_deps="audiotoolbox"
3065 alac_at_encoder_select="audio_frame_queue"
3066 ilbc_at_encoder_deps="audiotoolbox"
3067 ilbc_at_encoder_select="audio_frame_queue"
3068 pcm_alaw_at_encoder_deps="audiotoolbox"
3069 pcm_alaw_at_encoder_select="audio_frame_queue"
3070 pcm_mulaw_at_encoder_deps="audiotoolbox"
3071 pcm_mulaw_at_encoder_select="audio_frame_queue"
3072 chromaprint_muxer_deps="chromaprint"
3073 h264_videotoolbox_encoder_deps="pthreads"
3074 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3075 hevc_videotoolbox_encoder_deps="pthreads"
3076 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3077 libaom_av1_decoder_deps="libaom"
3078 libaom_av1_encoder_deps="libaom"
3079 libaom_av1_encoder_select="extract_extradata_bsf"
3080 libcelt_decoder_deps="libcelt"
3081 libcodec2_decoder_deps="libcodec2"
3082 libcodec2_encoder_deps="libcodec2"
3083 libdavs2_decoder_deps="libdavs2"
3084 libfdk_aac_decoder_deps="libfdk_aac"
3085 libfdk_aac_encoder_deps="libfdk_aac"
3086 libfdk_aac_encoder_select="audio_frame_queue"
3087 libgme_demuxer_deps="libgme"
3088 libgsm_decoder_deps="libgsm"
3089 libgsm_encoder_deps="libgsm"
3090 libgsm_ms_decoder_deps="libgsm"
3091 libgsm_ms_encoder_deps="libgsm"
3092 libilbc_decoder_deps="libilbc"
3093 libilbc_encoder_deps="libilbc"
3094 libkvazaar_encoder_deps="libkvazaar"
3095 libmodplug_demuxer_deps="libmodplug"
3096 libmp3lame_encoder_deps="libmp3lame"
3097 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3098 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3099 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3100 libopencore_amrnb_encoder_select="audio_frame_queue"
3101 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3102 libopenh264_decoder_deps="libopenh264"
3103 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3104 libopenh264_encoder_deps="libopenh264"
3105 libopenjpeg_decoder_deps="libopenjpeg"
3106 libopenjpeg_encoder_deps="libopenjpeg"
3107 libopenmpt_demuxer_deps="libopenmpt"
3108 libopus_decoder_deps="libopus"
3109 libopus_encoder_deps="libopus"
3110 libopus_encoder_select="audio_frame_queue"
3111 librsvg_decoder_deps="librsvg"
3112 libshine_encoder_deps="libshine"
3113 libshine_encoder_select="audio_frame_queue"
3114 libspeex_decoder_deps="libspeex"
3115 libspeex_encoder_deps="libspeex"
3116 libspeex_encoder_select="audio_frame_queue"
3117 libtheora_encoder_deps="libtheora"
3118 libtwolame_encoder_deps="libtwolame"
3119 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3120 libvorbis_decoder_deps="libvorbis"
3121 libvorbis_encoder_deps="libvorbis libvorbisenc"
3122 libvorbis_encoder_select="audio_frame_queue"
3123 libvpx_vp8_decoder_deps="libvpx"
3124 libvpx_vp8_encoder_deps="libvpx"
3125 libvpx_vp9_decoder_deps="libvpx"
3126 libvpx_vp9_encoder_deps="libvpx"
3127 libwavpack_encoder_deps="libwavpack"
3128 libwavpack_encoder_select="audio_frame_queue"
3129 libwebp_encoder_deps="libwebp"
3130 libwebp_anim_encoder_deps="libwebp"
3131 libx262_encoder_deps="libx262"
3132 libx264_encoder_deps="libx264"
3133 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3134 libx264rgb_encoder_select="libx264_encoder"
3135 libx265_encoder_deps="libx265"
3136 libxavs_encoder_deps="libxavs"
3137 libxvid_encoder_deps="libxvid"
3138 libzvbi_teletext_decoder_deps="libzvbi"
3139 vapoursynth_demuxer_deps="vapoursynth"
3140 videotoolbox_suggest="coreservices"
3141 videotoolbox_deps="corefoundation coremedia corevideo"
3142 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3143
3144 # demuxers / muxers
3145 ac3_demuxer_select="ac3_parser"
3146 aiff_muxer_select="iso_media"
3147 asf_demuxer_select="riffdec"
3148 asf_o_demuxer_select="riffdec"
3149 asf_muxer_select="riffenc"
3150 asf_stream_muxer_select="asf_muxer"
3151 avi_demuxer_select="iso_media riffdec exif"
3152 avi_muxer_select="riffenc"
3153 caf_demuxer_select="iso_media riffdec"
3154 caf_muxer_select="iso_media"
3155 dash_muxer_select="mp4_muxer"
3156 dash_demuxer_deps="libxml2"
3157 dirac_demuxer_select="dirac_parser"
3158 dts_demuxer_select="dca_parser"
3159 dtshd_demuxer_select="dca_parser"
3160 dv_demuxer_select="dvprofile"
3161 dv_muxer_select="dvprofile"
3162 dxa_demuxer_select="riffdec"
3163 eac3_demuxer_select="ac3_parser"
3164 f4v_muxer_select="mov_muxer"
3165 fifo_muxer_deps="threads"
3166 flac_demuxer_select="flac_parser"
3167 hds_muxer_select="flv_muxer"
3168 hls_muxer_select="mpegts_muxer"
3169 hls_muxer_suggest="gcrypt openssl"
3170 image2_alias_pix_demuxer_select="image2_demuxer"
3171 image2_brender_pix_demuxer_select="image2_demuxer"
3172 ipod_muxer_select="mov_muxer"
3173 ismv_muxer_select="mov_muxer"
3174 matroska_audio_muxer_select="matroska_muxer"
3175 matroska_demuxer_select="iso_media riffdec"
3176 matroska_demuxer_suggest="bzlib lzo zlib"
3177 matroska_muxer_select="iso_media riffenc"
3178 mmf_muxer_select="riffenc"
3179 mov_demuxer_select="iso_media riffdec"
3180 mov_demuxer_suggest="zlib"
3181 mov_muxer_select="iso_media riffenc rtpenc_chain"
3182 mp3_demuxer_select="mpegaudio_parser"
3183 mp3_muxer_select="mpegaudioheader"
3184 mp4_muxer_select="mov_muxer"
3185 mpegts_demuxer_select="iso_media"
3186 mpegts_muxer_select="adts_muxer latm_muxer"
3187 mpegtsraw_demuxer_select="mpegts_demuxer"
3188 mxf_d10_muxer_select="mxf_muxer"
3189 mxf_opatom_muxer_select="mxf_muxer"
3190 nut_muxer_select="riffenc"
3191 nuv_demuxer_select="riffdec"
3192 oga_muxer_select="ogg_muxer"
3193 ogg_demuxer_select="dirac_parse"
3194 ogv_muxer_select="ogg_muxer"
3195 opus_muxer_select="ogg_muxer"
3196 psp_muxer_select="mov_muxer"
3197 rtp_demuxer_select="sdp_demuxer"
3198 rtp_muxer_select="golomb"
3199 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3200 rtsp_demuxer_select="http_protocol rtpdec"
3201 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3202 sap_demuxer_select="sdp_demuxer"
3203 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3204 sdp_demuxer_select="rtpdec"
3205 smoothstreaming_muxer_select="ismv_muxer"
3206 spdif_demuxer_select="adts_header"
3207 spdif_muxer_select="adts_header"
3208 spx_muxer_select="ogg_muxer"
3209 swf_demuxer_suggest="zlib"
3210 tak_demuxer_select="tak_parser"
3211 tg2_muxer_select="mov_muxer"
3212 tgp_muxer_select="mov_muxer"
3213 vobsub_demuxer_select="mpegps_demuxer"
3214 w64_demuxer_select="wav_demuxer"
3215 w64_muxer_select="wav_muxer"
3216 wav_demuxer_select="riffdec"
3217 wav_muxer_select="riffenc"
3218 webm_muxer_select="iso_media riffenc"
3219 webm_dash_manifest_demuxer_select="matroska_demuxer"
3220 wtv_demuxer_select="mpegts_demuxer riffdec"
3221 wtv_muxer_select="mpegts_muxer riffenc"
3222 xmv_demuxer_select="riffdec"
3223 xwma_demuxer_select="riffdec"
3224
3225 # indevs / outdevs
3226 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3227 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3228 alsa_indev_deps="alsa"
3229 alsa_outdev_deps="alsa"
3230 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3231 avfoundation_indev_suggest="coregraphics applicationservices"
3232 avfoundation_indev_extralibs="-framework Foundation"
3233 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3234 caca_outdev_deps="libcaca"
3235 decklink_deps_any="libdl LoadLibrary"
3236 decklink_indev_deps="decklink threads"
3237 decklink_indev_extralibs="-lstdc++"
3238 decklink_outdev_deps="decklink threads"
3239 decklink_outdev_suggest="libklvanc"
3240 decklink_outdev_extralibs="-lstdc++"
3241 libndi_newtek_indev_deps="libndi_newtek"
3242 libndi_newtek_indev_extralibs="-lndi"
3243 libndi_newtek_outdev_deps="libndi_newtek"
3244 libndi_newtek_outdev_extralibs="-lndi"
3245 dshow_indev_deps="IBaseFilter"
3246 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3247 fbdev_indev_deps="linux_fb_h"
3248 fbdev_outdev_deps="linux_fb_h"
3249 gdigrab_indev_deps="CreateDIBSection"
3250 gdigrab_indev_extralibs="-lgdi32"
3251 gdigrab_indev_select="bmp_decoder"
3252 iec61883_indev_deps="libiec61883"
3253 jack_indev_deps="libjack"
3254 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3255 kmsgrab_indev_deps="libdrm"
3256 lavfi_indev_deps="avfilter"
3257 libcdio_indev_deps="libcdio"
3258 libdc1394_indev_deps="libdc1394"
3259 openal_indev_deps="openal"
3260 opengl_outdev_deps="opengl"
3261 oss_indev_deps_any="sys_soundcard_h"
3262 oss_outdev_deps_any="sys_soundcard_h"
3263 pulse_indev_deps="libpulse"
3264 pulse_outdev_deps="libpulse"
3265 sdl2_outdev_deps="sdl2"
3266 sndio_indev_deps="sndio"
3267 sndio_outdev_deps="sndio"
3268 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3269 v4l2_indev_suggest="libv4l2"
3270 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3271 v4l2_outdev_suggest="libv4l2"
3272 vfwcap_indev_deps="vfw32 vfwcap_defines"
3273 xcbgrab_indev_deps="libxcb"
3274 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3275 xv_outdev_deps="xlib"
3276
3277 # protocols
3278 async_protocol_deps="threads"
3279 bluray_protocol_deps="libbluray"
3280 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3281 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3282 ffrtmpcrypt_protocol_select="tcp_protocol"
3283 ffrtmphttp_protocol_conflict="librtmp_protocol"
3284 ffrtmphttp_protocol_select="http_protocol"
3285 ftp_protocol_select="tcp_protocol"
3286 gopher_protocol_select="network"
3287 http_protocol_select="tcp_protocol"
3288 http_protocol_suggest="zlib"
3289 httpproxy_protocol_select="tcp_protocol"
3290 httpproxy_protocol_suggest="zlib"
3291 https_protocol_select="tls_protocol"
3292 https_protocol_suggest="zlib"
3293 icecast_protocol_select="http_protocol"
3294 mmsh_protocol_select="http_protocol"
3295 mmst_protocol_select="network"
3296 rtmp_protocol_conflict="librtmp_protocol"
3297 rtmp_protocol_select="tcp_protocol"
3298 rtmp_protocol_suggest="zlib"
3299 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3300 rtmpe_protocol_suggest="zlib"
3301 rtmps_protocol_conflict="librtmp_protocol"
3302 rtmps_protocol_select="tls_protocol"
3303 rtmps_protocol_suggest="zlib"
3304 rtmpt_protocol_select="ffrtmphttp_protocol"
3305 rtmpt_protocol_suggest="zlib"
3306 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3307 rtmpte_protocol_suggest="zlib"
3308 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3309 rtmpts_protocol_suggest="zlib"
3310 rtp_protocol_select="udp_protocol"
3311 schannel_conflict="openssl gnutls libtls mbedtls"
3312 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3313 sctp_protocol_select="network"
3314 securetransport_conflict="openssl gnutls libtls mbedtls"
3315 srtp_protocol_select="rtp_protocol srtp"
3316 tcp_protocol_select="network"
3317 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3318 tls_protocol_select="tcp_protocol"
3319 udp_protocol_select="network"
3320 udplite_protocol_select="network"
3321 unix_protocol_deps="sys_un_h"
3322 unix_protocol_select="network"
3323
3324 # external library protocols
3325 librtmp_protocol_deps="librtmp"
3326 librtmpe_protocol_deps="librtmp"
3327 librtmps_protocol_deps="librtmp"
3328 librtmpt_protocol_deps="librtmp"
3329 librtmpte_protocol_deps="librtmp"
3330 libsmbclient_protocol_deps="libsmbclient gplv3"
3331 libsrt_protocol_deps="libsrt"
3332 libsrt_protocol_select="network"
3333 libssh_protocol_deps="libssh"
3334 libtls_conflict="openssl gnutls mbedtls"
3335
3336 # filters
3337 afftfilt_filter_deps="avcodec"
3338 afftfilt_filter_select="fft"
3339 afir_filter_deps="avcodec"
3340 afir_filter_select="fft"
3341 amovie_filter_deps="avcodec avformat"
3342 aresample_filter_deps="swresample"
3343 ass_filter_deps="libass"
3344 atempo_filter_deps="avcodec"
3345 atempo_filter_select="rdft"
3346 avgblur_opencl_filter_deps="opencl"
3347 azmq_filter_deps="libzmq"
3348 blackframe_filter_deps="gpl"
3349 boxblur_filter_deps="gpl"
3350 boxblur_opencl_filter_deps="opencl gpl"
3351 bs2b_filter_deps="libbs2b"
3352 colormatrix_filter_deps="gpl"
3353 convolution_opencl_filter_deps="opencl"
3354 convolve_filter_deps="avcodec"
3355 convolve_filter_select="fft"
3356 coreimage_filter_deps="coreimage appkit"
3357 coreimage_filter_extralibs="-framework OpenGL"
3358 coreimagesrc_filter_deps="coreimage appkit"
3359 coreimagesrc_filter_extralibs="-framework OpenGL"
3360 cover_rect_filter_deps="avcodec avformat gpl"
3361 cropdetect_filter_deps="gpl"
3362 deconvolve_filter_deps="avcodec"
3363 deconvolve_filter_select="fft"
3364 deinterlace_qsv_filter_deps="libmfx"
3365 deinterlace_vaapi_filter_deps="vaapi"
3366 delogo_filter_deps="gpl"
3367 denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3368 deshake_filter_select="pixelutils"
3369 dilation_opencl_filter_deps="opencl"
3370 drawtext_filter_deps="libfreetype"
3371 drawtext_filter_suggest="libfontconfig libfribidi"
3372 elbg_filter_deps="avcodec"
3373 eq_filter_deps="gpl"
3374 erosion_opencl_filter_deps="opencl"
3375 fftfilt_filter_deps="avcodec"
3376 fftfilt_filter_select="rdft"
3377 fftdnoiz_filter_deps="avcodec"
3378 fftdnoiz_filter_select="fft"
3379 find_rect_filter_deps="avcodec avformat gpl"
3380 firequalizer_filter_deps="avcodec"
3381 firequalizer_filter_select="rdft"
3382 flite_filter_deps="libflite"
3383 framerate_filter_select="pixelutils"
3384 frei0r_filter_deps="frei0r libdl"
3385 frei0r_src_filter_deps="frei0r libdl"
3386 fspp_filter_deps="gpl"
3387 geq_filter_deps="gpl"
3388 histeq_filter_deps="gpl"
3389 hqdn3d_filter_deps="gpl"
3390 interlace_filter_deps="gpl"
3391 kerndeint_filter_deps="gpl"
3392 ladspa_filter_deps="ladspa libdl"
3393 lensfun_filter_deps="liblensfun version3"
3394 lv2_filter_deps="lv2"
3395 mcdeint_filter_deps="avcodec gpl"
3396 movie_filter_deps="avcodec avformat"
3397 mpdecimate_filter_deps="gpl"
3398 mpdecimate_filter_select="pixelutils"
3399 mptestsrc_filter_deps="gpl"
3400 negate_filter_deps="lut_filter"
3401 nnedi_filter_deps="gpl"
3402 ocr_filter_deps="libtesseract"
3403 ocv_filter_deps="libopencv"
3404 openclsrc_filter_deps="opencl"
3405 overlay_opencl_filter_deps="opencl"
3406 overlay_qsv_filter_deps="libmfx"
3407 overlay_qsv_filter_select="qsvvpp"
3408 owdenoise_filter_deps="gpl"
3409 pan_filter_deps="swresample"
3410 perspective_filter_deps="gpl"
3411 phase_filter_deps="gpl"
3412 pp7_filter_deps="gpl"
3413 pp_filter_deps="gpl postproc"
3414 prewitt_opencl_filter_deps="opencl"
3415 procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3416 program_opencl_filter_deps="opencl"
3417 pullup_filter_deps="gpl"
3418 removelogo_filter_deps="avcodec avformat swscale"
3419 repeatfields_filter_deps="gpl"
3420 resample_filter_deps="avresample"
3421 roberts_opencl_filter_deps="opencl"
3422 rubberband_filter_deps="librubberband"
3423 sab_filter_deps="gpl swscale"
3424 scale2ref_filter_deps="swscale"
3425 scale_filter_deps="swscale"
3426 scale_qsv_filter_deps="libmfx"
3427 select_filter_select="pixelutils"
3428 sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3429 showcqt_filter_deps="avcodec avformat swscale"
3430 showcqt_filter_suggest="libfontconfig libfreetype"
3431 showcqt_filter_select="fft"
3432 showfreqs_filter_deps="avcodec"
3433 showfreqs_filter_select="fft"
3434 showspectrum_filter_deps="avcodec"
3435 showspectrum_filter_select="fft"
3436 showspectrumpic_filter_deps="avcodec"
3437 showspectrumpic_filter_select="fft"
3438 signature_filter_deps="gpl avcodec avformat"
3439 smartblur_filter_deps="gpl swscale"
3440 sobel_opencl_filter_deps="opencl"
3441 sofalizer_filter_deps="libmysofa avcodec"
3442 sofalizer_filter_select="fft"
3443 spectrumsynth_filter_deps="avcodec"
3444 spectrumsynth_filter_select="fft"
3445 spp_filter_deps="gpl avcodec"
3446 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3447 sr_filter_deps="avformat swscale"
3448 sr_filter_select="dnn"
3449 stereo3d_filter_deps="gpl"
3450 subtitles_filter_deps="avformat avcodec libass"
3451 super2xsai_filter_deps="gpl"
3452 pixfmts_super2xsai_test_deps="super2xsai_filter"
3453 tinterlace_filter_deps="gpl"
3454 tinterlace_merge_test_deps="tinterlace_filter"
3455 tinterlace_pad_test_deps="tinterlace_filter"
3456 tonemap_filter_deps="const_nan"
3457 tonemap_opencl_filter_deps="opencl const_nan"
3458 unsharp_opencl_filter_deps="opencl"
3459 uspp_filter_deps="gpl avcodec"
3460 vaguedenoiser_filter_deps="gpl"
3461 vidstabdetect_filter_deps="libvidstab"
3462 vidstabtransform_filter_deps="libvidstab"
3463 libvmaf_filter_deps="libvmaf pthreads"
3464 zmq_filter_deps="libzmq"
3465 zoompan_filter_deps="swscale"
3466 zscale_filter_deps="libzimg const_nan"
3467 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3468 vpp_qsv_filter_deps="libmfx"
3469 vpp_qsv_filter_select="qsvvpp"
3470
3471 # examples
3472 avio_dir_cmd_deps="avformat avutil"
3473 avio_reading_deps="avformat avcodec avutil"
3474 decode_audio_example_deps="avcodec avutil"
3475 decode_video_example_deps="avcodec avutil"
3476 demuxing_decoding_example_deps="avcodec avformat avutil"
3477 encode_audio_example_deps="avcodec avutil"
3478 encode_video_example_deps="avcodec avutil"
3479 extract_mvs_example_deps="avcodec avformat avutil"
3480 filter_audio_example_deps="avfilter avutil"
3481 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3482 filtering_video_example_deps="avfilter avcodec avformat avutil"
3483 http_multiclient_example_deps="avformat avutil fork"
3484 hw_decode_example_deps="avcodec avformat avutil"
3485 metadata_example_deps="avformat avutil"
3486 muxing_example_deps="avcodec avformat avutil swscale"
3487 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3488 remuxing_example_deps="avcodec avformat avutil"
3489 resampling_audio_example_deps="avutil swresample"
3490 scaling_video_example_deps="avutil swscale"
3491 transcode_aac_example_deps="avcodec avformat swresample"
3492 transcoding_example_deps="avfilter avcodec avformat avutil"
3493 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3494 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3495
3496 # EXTRALIBS_LIST
3497 cpu_init_extralibs="pthreads_extralibs"
3498 cws2fws_extralibs="zlib_extralibs"
3499
3500 # libraries, in any order
3501 avcodec_deps="avutil"
3502 avcodec_suggest="libm"
3503 avcodec_select="null_bsf"
3504 avdevice_deps="avformat avcodec avutil"
3505 avdevice_suggest="libm"
3506 avfilter_deps="avutil"
3507 avfilter_suggest="libm"
3508 avformat_deps="avcodec avutil"
3509 avformat_suggest="libm network zlib"
3510 avresample_deps="avutil"
3511 avresample_suggest="libm"
3512 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3513 postproc_deps="avutil gpl"
3514 postproc_suggest="libm"
3515 swresample_deps="avutil"
3516 swresample_suggest="libm libsoxr"
3517 swscale_deps="avutil"
3518 swscale_suggest="libm"
3519
3520 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3521 avfilter_extralibs="pthreads_extralibs"
3522 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3523
3524 # programs
3525 ffmpeg_deps="avcodec avfilter avformat"
3526 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3527                null_filter
3528                trim_filter"
3529 ffmpeg_suggest="ole32 psapi shell32"
3530 ffplay_deps="avcodec avformat swscale swresample sdl2"
3531 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3532 ffplay_suggest="shell32"
3533 ffprobe_deps="avcodec avformat"
3534 ffprobe_suggest="shell32"
3535
3536 # documentation
3537 podpages_deps="perl"
3538 manpages_deps="perl pod2man"
3539 htmlpages_deps="perl"
3540 htmlpages_deps_any="makeinfo_html texi2html"
3541 txtpages_deps="perl makeinfo"
3542 doc_deps_any="manpages htmlpages podpages txtpages"
3543
3544 # default parameters
3545
3546 logfile="ffbuild/config.log"
3547
3548 # installation paths
3549 prefix_default="/usr/local"
3550 bindir_default='${prefix}/bin'
3551 datadir_default='${prefix}/share/ffmpeg'
3552 docdir_default='${prefix}/share/doc/ffmpeg'
3553 incdir_default='${prefix}/include'
3554 libdir_default='${prefix}/lib'
3555 mandir_default='${prefix}/share/man'
3556
3557 # toolchain
3558 ar_default="ar"
3559 cc_default="gcc"
3560 cxx_default="g++"
3561 host_cc_default="gcc"
3562 doxygen_default="doxygen"
3563 install="install"
3564 ln_s_default="ln -s -f"
3565 nm_default="nm -g"
3566 pkg_config_default=pkg-config
3567 ranlib_default="ranlib"
3568 strip_default="strip"
3569 version_script='--version-script'
3570 objformat="elf32"
3571 x86asmexe_default="nasm"
3572 windres_default="windres"
3573 nvcc_default="nvcc"
3574 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3575 striptype="direct"
3576
3577 # OS
3578 target_os_default=$(tolower $(uname -s))
3579 host_os=$target_os_default
3580
3581 # machine
3582 if test "$target_os_default" = aix; then
3583     arch_default=$(uname -p)
3584     strip_default="strip -X32_64"
3585 else
3586     arch_default=$(uname -m)
3587 fi
3588 cpu="generic"
3589 intrinsics="none"
3590
3591 # configurable options
3592 enable $PROGRAM_LIST
3593 enable $DOCUMENT_LIST
3594 enable $EXAMPLE_LIST
3595 enable $(filter_out avresample $LIBRARY_LIST)
3596 enable stripping
3597
3598 enable asm
3599 enable debug
3600 enable doc
3601 enable faan faandct faanidct
3602 enable optimizations
3603 enable runtime_cpudetect
3604 enable safe_bitstream_reader
3605 enable static
3606 enable swscale_alpha
3607 enable valgrind_backtrace
3608
3609 sws_max_filter_size_default=256
3610 set_default sws_max_filter_size
3611
3612 # internal components are enabled by default
3613 enable $EXTRALIBS_LIST
3614
3615 # Avoid external, non-system, libraries getting enabled by dependency resolution
3616 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3617
3618 # build settings
3619 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3620 LIBPREF="lib"
3621 LIBSUF=".a"
3622 FULLNAME='$(NAME)$(BUILDSUF)'
3623 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3624 SLIBPREF="lib"
3625 SLIBSUF=".so"
3626 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3627 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3628 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3629 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3630 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3631 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3632 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3633
3634 asflags_filter=echo
3635 cflags_filter=echo
3636 ldflags_filter=echo
3637
3638 AS_C='-c'
3639 AS_O='-o $@'
3640 CC_C='-c'
3641 CC_E='-E -o $@'
3642 CC_O='-o $@'
3643 CXX_C='-c'
3644 CXX_O='-o $@'
3645 OBJCC_C='-c'
3646 OBJCC_E='-E -o $@'
3647 OBJCC_O='-o $@'
3648 X86ASM_O='-o $@'
3649 LD_O='-o $@'
3650 LD_LIB='-l%'
3651 LD_PATH='-L'
3652 HOSTCC_C='-c'
3653 HOSTCC_E='-E -o $@'
3654 HOSTCC_O='-o $@'
3655 HOSTLD_O='-o $@'
3656 NVCC_C='-c'
3657 NVCC_O='-o $@'
3658
3659 host_extralibs='-lm'
3660 host_cflags_filter=echo
3661 host_ldflags_filter=echo
3662
3663 target_path='$(CURDIR)'
3664
3665 # since the object filename is not given with the -MM flag, the compiler
3666 # is only able to print the basename, and we must add the path ourselves
3667 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3668 DEPFLAGS='-MM'
3669
3670 mkdir -p ffbuild
3671
3672 # find source path
3673 if test -f configure; then
3674     source_path=.
3675 else
3676     source_path=$(cd $(dirname "$0"); pwd)
3677     case "$source_path" in
3678         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3679     esac
3680     test -e "$source_path/config.h" &&
3681         die "Out of tree builds are impossible with config.h in source dir."
3682 fi
3683
3684 for v in "$@"; do
3685     r=${v#*=}
3686     l=${v%"$r"}
3687     r=$(sh_quote "$r")
3688     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3689 done
3690
3691 find_things_extern(){
3692     thing=$1
3693     pattern=$2
3694     file=$source_path/$3
3695     out=${4:-$thing}
3696     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3697 }
3698
3699 find_filters_extern(){
3700     file=$source_path/$1
3701     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3702     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3703 }
3704
3705 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3706 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3707 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3708 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3709 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3710 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3711 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3712 CODEC_LIST="
3713     $ENCODER_LIST
3714     $DECODER_LIST
3715 "
3716 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3717 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3718 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3719 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3720
3721 AVCODEC_COMPONENTS_LIST="
3722     $BSF_LIST
3723     $DECODER_LIST
3724     $ENCODER_LIST
3725     $HWACCEL_LIST
3726     $PARSER_LIST
3727 "
3728
3729 AVDEVICE_COMPONENTS_LIST="
3730     $INDEV_LIST
3731     $OUTDEV_LIST
3732 "
3733
3734 AVFILTER_COMPONENTS_LIST="
3735     $FILTER_LIST
3736 "
3737
3738 AVFORMAT_COMPONENTS_LIST="
3739     $DEMUXER_LIST
3740     $MUXER_LIST
3741     $PROTOCOL_LIST
3742 "
3743
3744 ALL_COMPONENTS="
3745     $AVCODEC_COMPONENTS_LIST
3746     $AVDEVICE_COMPONENTS_LIST
3747     $AVFILTER_COMPONENTS_LIST
3748     $AVFORMAT_COMPONENTS_LIST
3749 "
3750
3751 for n in $COMPONENT_LIST; do
3752     v=$(toupper ${n%s})_LIST
3753     eval enable \$$v
3754     eval ${n}_if_any="\$$v"
3755 done
3756
3757 enable $ARCH_EXT_LIST
3758
3759 die_unknown(){
3760     echo "Unknown option \"$1\"."
3761     echo "See $0 --help for available options."
3762     exit 1
3763 }
3764
3765 print_in_columns() {
3766     cols=$(expr $ncols / 24)
3767     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3768 }
3769
3770 show_list() {
3771     suffix=_$1
3772     shift
3773     echo $* | sed s/$suffix//g | print_in_columns
3774     exit 0
3775 }
3776
3777 rand_list(){
3778     IFS=', '
3779     set -- $*
3780     unset IFS
3781     for thing; do
3782         comp=${thing%:*}
3783         prob=${thing#$comp}
3784         prob=${prob#:}
3785         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3786         echo "prob ${prob:-0.5}"
3787         printf '%s\n' $comp
3788     done
3789 }
3790
3791 do_random(){
3792     action=$1
3793     shift
3794     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3795     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3796 }
3797
3798 for opt do
3799     optval="${opt#*=}"
3800     case "$opt" in
3801         --extra-ldflags=*)
3802             add_ldflags $optval
3803         ;;
3804         --extra-ldexeflags=*)
3805             add_ldexeflags $optval
3806         ;;
3807         --extra-ldsoflags=*)
3808             add_ldsoflags $optval
3809         ;;
3810         --extra-ldlibflags=*)
3811             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3812                  "removed in the future. Use --extra-ldsoflags instead."
3813             add_ldsoflags $optval
3814         ;;
3815         --extra-libs=*)
3816             add_extralibs $optval
3817         ;;
3818         --disable-devices)
3819             disable $INDEV_LIST $OUTDEV_LIST
3820         ;;
3821         --enable-debug=*)
3822             debuglevel="$optval"
3823         ;;
3824         --disable-programs)
3825             disable $PROGRAM_LIST
3826         ;;
3827         --disable-everything)
3828             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3829         ;;
3830         --disable-all)
3831             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3832             disable $LIBRARY_LIST $PROGRAM_LIST doc
3833             enable avutil
3834         ;;
3835         --enable-random|--disable-random)
3836             action=${opt%%-random}
3837             do_random ${action#--} $COMPONENT_LIST
3838         ;;
3839         --enable-random=*|--disable-random=*)
3840             action=${opt%%-random=*}
3841             do_random ${action#--} $optval
3842         ;;
3843         --enable-sdl)
3844             enable sdl2
3845         ;;
3846         --enable-*=*|--disable-*=*)
3847             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3848             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3849             eval list=\$$(toupper $thing)_LIST
3850             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3851             list=$(filter "$name" $list)
3852             [ "$list" = "" ] && warn "Option $opt did not match anything"
3853             $action $list
3854         ;;
3855         --enable-yasm|--disable-yasm)
3856             warn "The ${opt} option is only provided for compatibility and will be\n"\
3857                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3858             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3859         ;;
3860         --yasmexe=*)
3861             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3862                  "removed in the future. Use --x86asmexe instead."
3863             x86asmexe="$optval"
3864         ;;
3865         --enable-?*|--disable-?*)
3866             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3867             if is_in $option $COMPONENT_LIST; then
3868                 test $action = disable && action=unset
3869                 eval $action \$$(toupper ${option%s})_LIST
3870             elif is_in $option $CMDLINE_SELECT; then
3871                 $action $option
3872             else
3873                 die_unknown $opt
3874             fi
3875         ;;
3876         --list-*)
3877             NAME="${opt#--list-}"
3878             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3879             NAME=${NAME%s}
3880             eval show_list $NAME \$$(toupper $NAME)_LIST
3881         ;;
3882         --help|-h) show_help
3883         ;;
3884         --quiet|-q) quiet=yes
3885         ;;
3886         --fatal-warnings) enable fatal_warnings
3887         ;;
3888         --libfuzzer=*)
3889             libfuzzer_path="$optval"
3890         ;;
3891         *)
3892             optname="${opt%%=*}"
3893             optname="${optname#--}"
3894             optname=$(echo "$optname" | sed 's/-/_/g')
3895             if is_in $optname $CMDLINE_SET; then
3896                 eval $optname='$optval'
3897             elif is_in $optname $CMDLINE_APPEND; then
3898                 append $optname "$optval"
3899             else
3900                 die_unknown $opt
3901             fi
3902         ;;
3903     esac
3904 done
3905
3906 for e in $env; do
3907     eval "export $e"
3908 done
3909
3910 if disabled autodetect; then
3911
3912     # Unless iconv is explicitely disabled by the user, we still want to probe
3913     # for the iconv from the libc.
3914     disabled iconv || enable libc_iconv
3915
3916     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3917     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3918 fi
3919 # Mark specifically enabled, but normally autodetected libraries as requested.
3920 for lib in $AUTODETECT_LIBS; do
3921     enabled $lib && request $lib
3922 done
3923 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3924 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3925 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3926
3927 disabled logging && logfile=/dev/null
3928
3929 # command line configuration sanity checks
3930
3931 # we need to build at least one lib type
3932 if ! enabled_any static shared; then
3933     cat <<EOF
3934 At least one library type must be built.
3935 Specify --enable-static to build the static libraries or --enable-shared to
3936 build the shared libraries as well. To only build the shared libraries specify
3937 --disable-static in addition to --enable-shared.
3938 EOF
3939     exit 1
3940 fi
3941
3942 die_license_disabled() {
3943     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3944 }
3945
3946 die_license_disabled_gpl() {
3947     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3948 }
3949
3950 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3951 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3952
3953 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3954 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3955
3956 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3957
3958 if enabled nonfree; then
3959     license="nonfree and unredistributable"
3960 elif enabled gplv3; then
3961     license="GPL version 3 or later"
3962 elif enabled lgplv3; then
3963     license="LGPL version 3 or later"
3964 elif enabled gpl; then
3965     license="GPL version 2 or later"
3966 else
3967     license="LGPL version 2.1 or later"
3968 fi
3969
3970 enabled_all gnutls openssl &&
3971     die "GnuTLS and OpenSSL must not be enabled at the same time."
3972
3973 enabled_all gnutls mbedtls &&
3974     die "GnuTLS and mbedTLS must not be enabled at the same time."
3975
3976 enabled_all openssl mbedtls &&
3977     die "OpenSSL and mbedTLS must not be enabled at the same time."
3978
3979 # Disable all the library-specific components if the library itself
3980 # is disabled, see AVCODEC_LIST and following _LIST variables.
3981
3982 disable_components(){
3983     disabled ${1} && disable $(
3984         eval components="\$$(toupper ${1})_COMPONENTS"
3985         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3986     )
3987 }
3988
3989 map 'disable_components $v' $LIBRARY_LIST
3990
3991 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3992 set >> $logfile
3993
3994 test -n "$valgrind" && toolchain="valgrind-memcheck"
3995
3996 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
3997     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3998     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3999 }
4000
4001 case "$toolchain" in
4002     *-asan)
4003         cc_default="${toolchain%-asan}"
4004         add_cflags  -fsanitize=address
4005         add_ldflags -fsanitize=address
4006     ;;
4007     *-msan)
4008         cc_default="${toolchain%-msan}"
4009         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4010         add_ldflags -fsanitize=memory
4011     ;;
4012     *-tsan)
4013         cc_default="${toolchain%-tsan}"
4014         add_cflags  -fsanitize=thread
4015         add_ldflags -fsanitize=thread
4016         case "$toolchain" in
4017             gcc-tsan)
4018                 add_cflags  -fPIC
4019                 add_ldflags -fPIC
4020                 ;;
4021         esac
4022     ;;
4023     *-usan)
4024         cc_default="${toolchain%-usan}"
4025         add_cflags  -fsanitize=undefined
4026         add_ldflags -fsanitize=undefined
4027     ;;
4028     valgrind-*)
4029         target_exec_default="valgrind"
4030         case "$toolchain" in
4031             valgrind-massif)
4032                 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"
4033                 ;;
4034             valgrind-memcheck)
4035                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4036                 ;;
4037         esac
4038     ;;
4039     msvc)
4040         # Check whether the current MSVC version needs the C99 converter.
4041         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4042         # support enough of C99 to build ffmpeg. Default to the new
4043         # behaviour if the regexp was unable to match anything, since this
4044         # successfully parses the version number of existing supported
4045         # versions that require the converter (MSVC 2010 and 2012).
4046         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4047         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4048             cc_default="cl"
4049             cxx_default="cl"
4050         else
4051             die "Unsupported MSVC version (2013 or newer required)"
4052         fi
4053         ld_default="$source_path/compat/windows/mslink"
4054         nm_default="dumpbin -symbols"
4055         ar_default="lib"
4056         case "$arch" in
4057         aarch64|arm64)
4058             as_default="armasm64"
4059             ;;
4060         arm*)
4061             as_default="armasm"
4062             ;;
4063         esac
4064         target_os_default="win32"
4065         # Use a relative path for TMPDIR. This makes sure all the
4066         # ffconf temp files are written with a relative path, avoiding
4067         # issues with msys/win32 path conversion for MSVC parameters
4068         # such as -Fo<file> or -out:<file>.
4069         TMPDIR=.
4070     ;;
4071     icl)
4072         cc_default="icl"
4073         ld_default="xilink"
4074         nm_default="dumpbin -symbols"
4075         ar_default="xilib"
4076         target_os_default="win32"
4077         TMPDIR=.
4078     ;;
4079     gcov)
4080         add_cflags  -fprofile-arcs -ftest-coverage
4081         add_ldflags -fprofile-arcs -ftest-coverage
4082     ;;
4083     llvm-cov)
4084         add_cflags -fprofile-arcs -ftest-coverage
4085         add_ldflags --coverage
4086     ;;
4087     hardened)
4088         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4089         add_cflags   -fno-strict-overflow -fstack-protector-all
4090         add_ldflags  -Wl,-z,relro -Wl,-z,now
4091         add_cflags   -fPIE
4092         add_ldexeflags -fPIE -pie
4093     ;;
4094     ?*)
4095         die "Unknown toolchain $toolchain"
4096     ;;
4097 esac
4098
4099 if test -n "$cross_prefix"; then
4100     test -n "$arch" && test -n "$target_os" ||
4101         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4102     enable cross_compile
4103 fi
4104
4105 ar_default="${cross_prefix}${ar_default}"
4106 cc_default="${cross_prefix}${cc_default}"
4107 cxx_default="${cross_prefix}${cxx_default}"
4108 nm_default="${cross_prefix}${nm_default}"
4109 pkg_config_default="${cross_prefix}${pkg_config_default}"
4110 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4111     ranlib_default="${cross_prefix}${ranlib_default} -D"
4112 else
4113     ranlib_default="${cross_prefix}${ranlib_default}"
4114 fi
4115 strip_default="${cross_prefix}${strip_default}"
4116 windres_default="${cross_prefix}${windres_default}"
4117
4118 sysinclude_default="${sysroot}/usr/include"
4119
4120 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4121     target_exec target_os x86asmexe nvcc
4122 enabled cross_compile || host_cc_default=$cc
4123 set_default host_cc
4124
4125 pkg_config_fail_message=""
4126 if ! $pkg_config --version >/dev/null 2>&1; then
4127     warn "$pkg_config not found, library detection may fail."
4128     pkg_config=false
4129 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4130     pkg_config_fail_message="
4131 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4132 fi
4133
4134 if test $doxygen != $doxygen_default && \
4135   ! $doxygen --version >/dev/null 2>&1; then
4136     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4137 fi
4138
4139 exesuf() {
4140     case $1 in
4141         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4142     esac
4143 }
4144
4145 EXESUF=$(exesuf $target_os)
4146 HOSTEXESUF=$(exesuf $host_os)
4147
4148 # set temporary file name
4149 : ${TMPDIR:=$TEMPDIR}
4150 : ${TMPDIR:=$TMP}
4151 : ${TMPDIR:=/tmp}
4152
4153 if [ -n "$tempprefix" ] ; then
4154     mktemp(){
4155         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4156         echo "$tmpname"
4157         mkdir "$tmpname"
4158     }
4159 elif ! test_cmd mktemp -u XXXXXX; then
4160     # simple replacement for missing mktemp
4161     # NOT SAFE FOR GENERAL USE
4162     mktemp(){
4163         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4164         echo "$tmpname"
4165         mkdir "$tmpname"
4166     }
4167 fi
4168
4169 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4170     die "Unable to create temporary directory in $TMPDIR."
4171
4172 tmpfile(){
4173     tmp="${FFTMPDIR}/test"$2
4174     (set -C; exec > $tmp) 2> /dev/null ||
4175         die "Unable to create temporary file in $FFTMPDIR."
4176     eval $1=$tmp
4177 }
4178
4179 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4180 trap 'exit 2' INT
4181
4182 tmpfile TMPASM .asm
4183 tmpfile TMPC   .c
4184 tmpfile TMPCPP .cpp
4185 tmpfile TMPE   $EXESUF
4186 tmpfile TMPH   .h
4187 tmpfile TMPM   .m
4188 tmpfile TMPO   .o
4189 tmpfile TMPS   .S
4190 tmpfile TMPSH  .sh
4191 tmpfile TMPV   .ver
4192
4193 unset -f mktemp
4194
4195 chmod +x $TMPE
4196
4197 # make sure we can execute files in $TMPDIR
4198 cat > $TMPSH 2>> $logfile <<EOF
4199 #! /bin/sh
4200 EOF
4201 chmod +x $TMPSH >> $logfile 2>&1
4202 if ! $TMPSH >> $logfile 2>&1; then
4203     cat <<EOF
4204 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4205 variable to another directory and make sure that it is not mounted noexec.
4206 EOF
4207     die "Sanity test failed."
4208 fi
4209
4210 armasm_flags(){
4211     for flag; do
4212         case $flag in
4213             # Filter out MSVC cl.exe options from cflags that shouldn't
4214             # be passed to gas-preprocessor
4215             -M[TD]*)                                            ;;
4216             *)                  echo $flag                      ;;
4217         esac
4218    done
4219 }
4220
4221 cparser_flags(){
4222     for flag; do
4223         case $flag in
4224             -Wno-switch)             echo -Wno-switch-enum ;;
4225             -Wno-format-zero-length) ;;
4226             -Wdisabled-optimization) ;;
4227             -Wno-pointer-sign)       echo -Wno-other ;;
4228             *)                       echo $flag ;;
4229         esac
4230     done
4231 }
4232
4233 msvc_common_flags(){
4234     for flag; do
4235         case $flag in
4236             # In addition to specifying certain flags under the compiler
4237             # specific filters, they must be specified here as well or else the
4238             # generic catch all at the bottom will print the original flag.
4239             -Wall)                ;;
4240             -Wextra)              ;;
4241             -std=c99)             ;;
4242             # Common flags
4243             -fomit-frame-pointer) ;;
4244             -g)                   echo -Z7 ;;
4245             -fno-math-errno)      ;;
4246             -fno-common)          ;;
4247             -fno-signed-zeros)    ;;
4248             -fPIC)                ;;
4249             -mthumb)              ;;
4250             -march=*)             ;;
4251             -lz)                  echo zlib.lib ;;
4252             -lx264)               echo libx264.lib ;;
4253             -lstdc++)             ;;
4254             -l*)                  echo ${flag#-l}.lib ;;
4255             -LARGEADDRESSAWARE)   echo $flag ;;
4256             -L*)                  echo -libpath:${flag#-L} ;;
4257             *)                    echo $flag ;;
4258         esac
4259     done
4260 }
4261
4262 msvc_flags(){
4263     msvc_common_flags "$@"
4264     for flag; do
4265         case $flag in
4266             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4267                                        -wd4554 ;;
4268             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4269                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4270                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4271                                        -wd4307 \
4272                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4273         esac
4274     done
4275 }
4276
4277 icl_flags(){
4278     msvc_common_flags "$@"
4279     for flag; do
4280         case $flag in
4281             # Despite what Intel's documentation says -Wall, which is supported
4282             # on Windows, does enable remarks so disable them here.
4283             -Wall)                echo $flag -Qdiag-disable:remark ;;
4284             -std=c99)             echo -Qstd=c99 ;;
4285             -flto)                echo -ipo ;;
4286         esac
4287     done
4288 }
4289
4290 icc_flags(){
4291     for flag; do
4292         case $flag in
4293             -flto)                echo -ipo ;;
4294             *)                    echo $flag ;;
4295         esac
4296     done
4297 }
4298
4299 suncc_flags(){
4300     for flag; do
4301         case $flag in
4302             -march=*|-mcpu=*)
4303                 case "${flag#*=}" in
4304                     native)                   echo -xtarget=native       ;;
4305                     v9|niagara)               echo -xarch=sparc          ;;
4306                     ultrasparc)               echo -xarch=sparcvis       ;;
4307                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4308                     i586|pentium)             echo -xchip=pentium        ;;
4309                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4310                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4311                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4312                     pentium4*)          echo -xtarget=pentium4           ;;
4313                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4314                     *-sse3)             echo -xarch=sse3                 ;;
4315                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4316                     bonnell)                   echo -xarch=ssse3         ;;
4317                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4318                     westmere)                  echo -xtarget=westmere    ;;
4319                     silvermont)                echo -xarch=sse4_2        ;;
4320                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4321                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4322                                                echo -xarch=avx           ;;
4323                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4324                     btver1)                    echo -xarch=amdsse4a      ;;
4325                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4326                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4327                     k8|opteron|athlon64|athlon-fx)
4328                                                echo -xarch=sse2a         ;;
4329                     athlon*)                   echo -xarch=pentium_proa  ;;
4330                 esac
4331                 ;;
4332             -std=c99)             echo -xc99              ;;
4333             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4334             -fPIC)                echo -KPIC -xcode=pic32 ;;
4335             -W*,*)                echo $flag              ;;
4336             -f*-*|-W*|-mimpure-text)                      ;;
4337             -shared)              echo -G                 ;;
4338             *)                    echo $flag              ;;
4339         esac
4340     done
4341 }
4342
4343 probe_cc(){
4344     pfx=$1
4345     _cc=$2
4346     first=$3
4347
4348     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4349     unset _ld_o _ldflags _ld_lib _ld_path
4350     unset _depflags _DEPCMD _DEPFLAGS
4351     _flags_filter=echo
4352
4353     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4354         true # no-op to avoid reading stdin in following checks
4355     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4356         _type=llvm_gcc
4357         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4358         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4359         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4360         _cflags_speed='-O3'
4361         _cflags_size='-Os'
4362     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4363         _type=gcc
4364         gcc_version=$($_cc --version | head -n1)
4365         gcc_basever=$($_cc -dumpversion)
4366         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4367         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4368         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4369         case $gcc_basever in
4370             2) ;;
4371             2.*) ;;
4372             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4373         esac
4374         if [ "$first" = true ]; then
4375             case $gcc_basever in
4376                 4.2*)
4377                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4378             esac
4379         fi
4380         _cflags_speed='-O3'
4381         _cflags_size='-Os'
4382     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4383         _type=icc
4384         _ident=$($_cc --version | head -n1)
4385         _depflags='-MMD'
4386         _cflags_speed='-O3'
4387         _cflags_size='-Os'
4388         _cflags_noopt='-O1'
4389         _flags_filter=icc_flags
4390     elif $_cc -v 2>&1 | grep -q xlc; then
4391         _type=xlc
4392         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4393         _cflags_speed='-O5'
4394         _cflags_size='-O5 -qcompact'
4395     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4396         test -d "$sysroot" || die "No valid sysroot specified."
4397         _type=armcc
4398         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4399         armcc_conf="$PWD/armcc.conf"
4400         $_cc --arm_linux_configure                 \
4401              --arm_linux_config_file="$armcc_conf" \
4402              --configure_sysroot="$sysroot"        \
4403              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4404              die "Error creating armcc configuration file."
4405         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4406         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4407         as_default="${cross_prefix}gcc"
4408         _depflags='-MMD'
4409         _cflags_speed='-O3'
4410         _cflags_size='-Os'
4411     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4412         _type=clang
4413         _ident=$($_cc --version 2>/dev/null | head -n1)
4414         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4415         _cflags_speed='-O3'
4416         _cflags_size='-Oz'
4417     elif $_cc -V 2>&1 | grep -q Sun; then
4418         _type=suncc
4419         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4420         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4421         _DEPFLAGS='-xM1 -xc99'
4422         _ldflags='-std=c99'
4423         _cflags_speed='-O5'
4424         _cflags_size='-O5 -xspace'
4425         _flags_filter=suncc_flags
4426     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4427         _type=pathscale
4428         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4429         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4430         _cflags_speed='-O2'
4431         _cflags_size='-Os'
4432         _flags_filter='filter_out -Wdisabled-optimization'
4433     elif $_cc -v 2>&1 | grep -q Open64; then
4434         _type=open64
4435         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4436         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4437         _cflags_speed='-O2'
4438         _cflags_size='-Os'
4439         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4440     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4441         _type=armasm
4442         _ident=$($_cc | head -n1)
4443         # 4509: "This form of conditional instruction is deprecated"
4444         _flags="-nologo -ignore 4509"
4445         _flags_filter=armasm_flags
4446     elif $_cc 2>&1 | grep -q Intel; then
4447         _type=icl
4448         _ident=$($_cc 2>&1 | head -n1)
4449         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4450         # Not only is O3 broken on 13.x+ but it is slower on all previous
4451         # versions (tested) as well.
4452         _cflags_speed="-O2"
4453         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4454         if $_cc 2>&1 | grep -q Linker; then
4455             _ld_o='-out:$@'
4456         else
4457             _ld_o='-Fe$@'
4458         fi
4459         _cc_o='-Fo$@'
4460         _cc_e='-P'
4461         _flags_filter=icl_flags
4462         _ld_lib='lib%.a'
4463         _ld_path='-libpath:'
4464         # -Qdiag-error to make icl error when seeing certain unknown arguments
4465         _flags='-nologo -Qdiag-error:4044,10157'
4466         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4467         # with MSVC which enables it by default.
4468         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4469         disable stripping
4470     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4471         # lld can emulate multiple different linkers; in ms link.exe mode,
4472         # the -? parameter gives the help output which contains an identifyable
4473         # string, while it gives an error in other modes.
4474         _type=lld-link
4475         # The link.exe mode doesn't have a switch for getting the version,
4476         # but we can force it back to gnu mode and get the version from there.
4477         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4478         _ld_o='-out:$@'
4479         _flags_filter=msvc_flags
4480         _ld_lib='lib%.a'
4481         _ld_path='-libpath:'
4482     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4483         _type=msvc
4484         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4485         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4486         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4487         _cflags_speed="-O2"
4488         _cflags_size="-O1"
4489         _cflags_noopt="-O1"
4490         if $_cc -nologo- 2>&1 | grep -q Linker; then
4491             _ld_o='-out:$@'
4492         else
4493             _ld_o='-Fe$@'
4494         fi
4495         _cc_o='-Fo$@'
4496         _cc_e='-P -Fi$@'
4497         _flags_filter=msvc_flags
4498         _ld_lib='lib%.a'
4499         _ld_path='-libpath:'
4500         _flags='-nologo'
4501         disable stripping
4502     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4503         _type=cparser
4504         _ident=$($_cc --version | head -n1)
4505         _depflags='-MMD'
4506         _cflags_speed='-O4'
4507         _cflags_size='-O2'
4508         _flags_filter=cparser_flags
4509     fi
4510
4511     eval ${pfx}_type=\$_type
4512     eval ${pfx}_ident=\$_ident
4513 }
4514
4515 set_ccvars(){
4516     eval ${1}_C=\${_cc_c-\${${1}_C}}
4517     eval ${1}_E=\${_cc_e-\${${1}_E}}
4518     eval ${1}_O=\${_cc_o-\${${1}_O}}
4519
4520     if [ -n "$_depflags" ]; then
4521         eval ${1}_DEPFLAGS=\$_depflags
4522     else
4523         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4524         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4525         eval DEP${1}FLAGS=\$_flags
4526     fi
4527 }
4528
4529 probe_cc cc "$cc" "true"
4530 cflags_filter=$_flags_filter
4531 cflags_speed=$_cflags_speed
4532 cflags_size=$_cflags_size
4533 cflags_noopt=$_cflags_noopt
4534 add_cflags $_flags $_cflags
4535 cc_ldflags=$_ldflags
4536 set_ccvars CC
4537 set_ccvars CXX
4538
4539 probe_cc hostcc "$host_cc"
4540 host_cflags_filter=$_flags_filter
4541 host_cflags_speed=$_cflags_speed
4542 add_host_cflags  $_flags $_cflags
4543 set_ccvars HOSTCC
4544
4545 test -n "$cc_type" && enable $cc_type ||
4546     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4547
4548 : ${as_default:=$cc}
4549 : ${objcc_default:=$cc}
4550 : ${dep_cc_default:=$cc}
4551 : ${ld_default:=$cc}
4552 : ${host_ld_default:=$host_cc}
4553 set_default ar as objcc dep_cc ld ln_s host_ld windres
4554
4555 probe_cc as "$as"
4556 asflags_filter=$_flags_filter
4557 add_asflags $_flags $_cflags
4558 set_ccvars AS
4559
4560 probe_cc objcc "$objcc"
4561 objcflags_filter=$_flags_filter
4562 add_objcflags $_flags $_cflags
4563 set_ccvars OBJC
4564
4565 probe_cc ld "$ld"
4566 ldflags_filter=$_flags_filter
4567 add_ldflags $_flags $_ldflags
4568 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4569 LD_O=${_ld_o-$LD_O}
4570 LD_LIB=${_ld_lib-$LD_LIB}
4571 LD_PATH=${_ld_path-$LD_PATH}
4572
4573 probe_cc hostld "$host_ld"
4574 host_ldflags_filter=$_flags_filter
4575 add_host_ldflags $_flags $_ldflags
4576 HOSTLD_O=${_ld_o-$HOSTLD_O}
4577
4578 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4579     probe_cc depcc "$dep_cc"
4580     CCDEP=${_DEPCMD:-$DEPCMD}
4581     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4582     DEPCCFLAGS=$_flags
4583 fi
4584
4585 if $ar 2>&1 | grep -q Microsoft; then
4586     arflags="-nologo"
4587     ar_o='-out:$@'
4588 elif $ar 2>&1 | grep -q "\[D\] "; then
4589     arflags="rcD"
4590     ar_o='$@'
4591 else
4592     arflags="rc"
4593     ar_o='$@'
4594 fi
4595
4596 add_cflags $extra_cflags
4597 add_cxxflags $extra_cxxflags
4598 add_objcflags $extra_objcflags
4599 add_asflags $extra_cflags
4600
4601 if test -n "$sysroot"; then
4602     case "$cc_type" in
4603         gcc|llvm_gcc|clang)
4604             add_cppflags --sysroot="$sysroot"
4605             add_ldflags --sysroot="$sysroot"
4606         ;;
4607     esac
4608 fi
4609
4610 if test "$cpu" = host; then
4611     enabled cross_compile &&
4612         die "--cpu=host makes no sense when cross-compiling."
4613
4614     case "$cc_type" in
4615         gcc|llvm_gcc)
4616             check_native(){
4617                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4618                 sed -n "/cc1.*$1=/{
4619                             s/.*$1=\\([^ ]*\\).*/\\1/
4620                             p
4621                             q
4622                         }" $TMPE
4623             }
4624             cpu=$(check_native -march || check_native -mcpu)
4625         ;;
4626         clang)
4627             check_native(){
4628                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4629                 sed -n "/cc1.*-target-cpu /{
4630                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4631                             p
4632                             q
4633                         }" $TMPE
4634             }
4635             cpu=$(check_native -march)
4636         ;;
4637     esac
4638
4639     test "${cpu:-host}" = host &&
4640         die "--cpu=host not supported with compiler $cc"
4641 fi
4642
4643 # Deal with common $arch aliases
4644 case "$arch" in
4645     aarch64|arm64)
4646         arch="aarch64"
4647     ;;
4648     arm*|iPad*|iPhone*)
4649         arch="arm"
4650     ;;
4651     mips*|IP*)
4652         case "$arch" in
4653         *el)
4654             add_cppflags -EL
4655             add_ldflags -EL
4656         ;;
4657         *eb)
4658             add_cppflags -EB
4659             add_ldflags -EB
4660         ;;
4661         esac
4662         arch="mips"
4663     ;;
4664     parisc*|hppa*)
4665         arch="parisc"
4666     ;;
4667     "Power Macintosh"|ppc*|powerpc*)
4668         arch="ppc"
4669     ;;
4670     s390|s390x)
4671         arch="s390"
4672     ;;
4673     sh4|sh)
4674         arch="sh4"
4675     ;;
4676     sun4*|sparc*)
4677         arch="sparc"
4678     ;;
4679     tilegx|tile-gx)
4680         arch="tilegx"
4681     ;;
4682     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4683         arch="x86"
4684     ;;
4685 esac
4686
4687 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4688 enable $arch
4689
4690 # Add processor-specific flags
4691 if enabled aarch64; then
4692
4693     case $cpu in
4694         armv*)
4695             cpuflags="-march=$cpu"
4696         ;;
4697         *)
4698             cpuflags="-mcpu=$cpu"
4699         ;;
4700     esac
4701
4702 elif enabled alpha; then
4703
4704     cpuflags="-mcpu=$cpu"
4705
4706 elif enabled arm; then
4707
4708     check_arm_arch() {
4709         test_cpp_condition stddef.h \
4710             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4711             $cpuflags
4712     }
4713
4714     probe_arm_arch() {
4715         if   check_arm_arch 4;        then echo armv4
4716         elif check_arm_arch 4T;       then echo armv4t
4717         elif check_arm_arch 5;        then echo armv5
4718         elif check_arm_arch 5E;       then echo armv5e
4719         elif check_arm_arch 5T;       then echo armv5t
4720         elif check_arm_arch 5TE;      then echo armv5te
4721         elif check_arm_arch 5TEJ;     then echo armv5te
4722         elif check_arm_arch 6;        then echo armv6
4723         elif check_arm_arch 6J;       then echo armv6j
4724         elif check_arm_arch 6K;       then echo armv6k
4725         elif check_arm_arch 6Z;       then echo armv6z
4726         elif check_arm_arch 6KZ;      then echo armv6zk
4727         elif check_arm_arch 6ZK;      then echo armv6zk
4728         elif check_arm_arch 6T2;      then echo armv6t2
4729         elif check_arm_arch 7;        then echo armv7
4730         elif check_arm_arch 7A  7_A;  then echo armv7-a
4731         elif check_arm_arch 7S;       then echo armv7-a
4732         elif check_arm_arch 7R  7_R;  then echo armv7-r
4733         elif check_arm_arch 7M  7_M;  then echo armv7-m
4734         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4735         elif check_arm_arch 8A  8_A;  then echo armv8-a
4736         fi
4737     }
4738
4739     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4740
4741     case $cpu in
4742         armv*)
4743             cpuflags="-march=$cpu"
4744             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4745         ;;
4746         *)
4747             cpuflags="-mcpu=$cpu"
4748             case $cpu in
4749                 cortex-a*)                               subarch=armv7a  ;;
4750                 cortex-r*)                               subarch=armv7r  ;;
4751                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4752                 arm11*)                                  subarch=armv6   ;;
4753                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4754                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4755                 *)                             subarch=$(probe_arm_arch) ;;
4756             esac
4757         ;;
4758     esac
4759
4760     case "$subarch" in
4761         armv5t*)    enable fast_clz                ;;
4762         armv[6-8]*)
4763             enable fast_clz
4764             disabled fast_unaligned || enable fast_unaligned
4765             ;;
4766     esac
4767
4768 elif enabled avr32; then
4769
4770     case $cpu in
4771         ap7[02]0[0-2])
4772             subarch="avr32_ap"
4773             cpuflags="-mpart=$cpu"
4774         ;;
4775         ap)
4776             subarch="avr32_ap"
4777             cpuflags="-march=$cpu"
4778         ;;
4779         uc3[ab]*)
4780             subarch="avr32_uc"
4781             cpuflags="-mcpu=$cpu"
4782         ;;
4783         uc)
4784             subarch="avr32_uc"
4785             cpuflags="-march=$cpu"
4786         ;;
4787     esac
4788
4789 elif enabled bfin; then
4790
4791     cpuflags="-mcpu=$cpu"
4792
4793 elif enabled mips; then
4794
4795     cpuflags="-march=$cpu"
4796
4797     if [ "$cpu" != "generic" ]; then
4798         disable mips32r2
4799         disable mips32r5
4800         disable mips64r2
4801         disable mips32r6
4802         disable mips64r6
4803         disable loongson2
4804         disable loongson3
4805
4806         case $cpu in
4807             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4808                 enable mips32r2
4809                 disable msa
4810             ;;
4811             p5600|i6400|p6600)
4812                 disable mipsdsp
4813                 disable mipsdspr2
4814             ;;
4815             loongson*)
4816                 enable loongson2
4817                 enable loongson3
4818                 enable local_aligned
4819                 enable simd_align_16
4820                 enable fast_64bit
4821                 enable fast_clz
4822                 enable fast_cmov
4823                 enable fast_unaligned
4824                 disable aligned_stack
4825                 disable mipsfpu
4826                 disable mipsdsp
4827                 disable mipsdspr2
4828                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4829                 if [ $cc == gcc ]; then
4830                     gcc_version=$(gcc -dumpversion)
4831                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4832                         expensive_optimization_flag=""
4833                     else
4834                         expensive_optimization_flag="-fno-expensive-optimizations"
4835                     fi
4836                 fi
4837                 case $cpu in
4838                     loongson3*)
4839                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4840                     ;;
4841                     loongson2e)
4842                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4843                     ;;
4844                     loongson2f)
4845                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4846                     ;;
4847                 esac
4848             ;;
4849             *)
4850                 # Unknown CPU. Disable everything.
4851                 warn "unknown CPU. Disabling all MIPS optimizations."
4852                 disable mipsfpu
4853                 disable mipsdsp
4854                 disable mipsdspr2
4855                 disable msa
4856                 disable mmi
4857             ;;
4858         esac
4859
4860         case $cpu in
4861             24kc)
4862                 disable mipsfpu
4863                 disable mipsdsp
4864                 disable mipsdspr2
4865             ;;
4866             24kf*)
4867                 disable mipsdsp
4868                 disable mipsdspr2
4869             ;;
4870             24kec|34kc|1004kc)
4871                 disable mipsfpu
4872                 disable mipsdspr2
4873             ;;
4874             24kef*|34kf*|1004kf*)
4875                 disable mipsdspr2
4876             ;;
4877             74kc)
4878                 disable mipsfpu
4879             ;;
4880             p5600)
4881                 enable mips32r5
4882                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4883             ;;
4884             i6400)
4885                 enable mips64r6
4886                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4887             ;;
4888             p6600)
4889                 enable mips64r6
4890                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4891             ;;
4892         esac
4893     else
4894         # We do not disable anything. Is up to the user to disable the unwanted features.
4895         warn 'generic cpu selected'
4896     fi
4897
4898 elif enabled ppc; then
4899
4900     disable ldbrx
4901
4902     case $(tolower $cpu) in
4903         601|ppc601|powerpc601)
4904             cpuflags="-mcpu=601"
4905             disable altivec
4906         ;;
4907         603*|ppc603*|powerpc603*)
4908             cpuflags="-mcpu=603"
4909             disable altivec
4910         ;;
4911         604*|ppc604*|powerpc604*)
4912             cpuflags="-mcpu=604"
4913             disable altivec
4914         ;;
4915         g3|75*|ppc75*|powerpc75*)
4916             cpuflags="-mcpu=750"
4917             disable altivec
4918         ;;
4919         g4|745*|ppc745*|powerpc745*)
4920             cpuflags="-mcpu=7450"
4921             disable vsx
4922         ;;
4923         74*|ppc74*|powerpc74*)
4924             cpuflags="-mcpu=7400"
4925             disable vsx
4926         ;;
4927         g5|970|ppc970|powerpc970)
4928             cpuflags="-mcpu=970"
4929             disable vsx
4930         ;;