libavformat: add mbedTLS based TLS
[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-libdc1394       enable IIDC-1394 grabbing using libdc1394
230                            and libraw1394 [no]
231   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
232   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
233   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
234   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
235   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
236   --enable-libgme          enable Game Music Emu via libgme [no]
237   --enable-libgsm          enable GSM de/encoding via libgsm [no]
238   --enable-libiec61883     enable iec61883 via libiec61883 [no]
239   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
240   --enable-libjack         enable JACK audio sound server [no]
241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
242   --enable-libmodplug      enable ModPlug via libmodplug [no]
243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
244   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
245   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
246   --enable-libopencv       enable video filtering via libopencv [no]
247   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
248   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
249   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
250   --enable-libopus         enable Opus de/encoding via libopus [no]
251   --enable-libpulse        enable Pulseaudio input via libpulse [no]
252   --enable-librsvg         enable SVG rasterization via librsvg [no]
253   --enable-librubberband   enable rubberband needed for rubberband filter [no]
254   --enable-librtmp         enable RTMP[E] support via librtmp [no]
255   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
256   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
257   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
258   --enable-libsoxr         enable Include libsoxr resampling [no]
259   --enable-libspeex        enable Speex de/encoding via libspeex [no]
260   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
261   --enable-libssh          enable SFTP protocol via libssh [no]
262   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
263   --enable-libtheora       enable Theora encoding via libtheora [no]
264   --enable-libtls          enable LibreSSL (via libtls), needed for https support
265                            if openssl, gnutls or mbedtls is not used [no]
266   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
267   --enable-libv4l2         enable libv4l2/v4l-utils [no]
268   --enable-libvidstab      enable video stabilization using vid.stab [no]
269   --enable-libvmaf         enable vmaf filter via libvmaf [no]
270   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
271   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
272                            native implementation exists [no]
273   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
274   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
275   --enable-libwebp         enable WebP encoding via libwebp [no]
276   --enable-libx264         enable H.264 encoding via x264 [no]
277   --enable-libx265         enable HEVC encoding via x265 [no]
278   --enable-libxavs         enable AVS encoding via xavs [no]
279   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
280   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
281   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
282   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
283   --enable-libxvid         enable Xvid encoding via xvidcore,
284                            native MPEG-4/Xvid encoder exists [no]
285   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
286   --enable-libzimg         enable z.lib, needed for zscale filter [no]
287   --enable-libzmq          enable message passing via libzmq [no]
288   --enable-libzvbi         enable teletext support via libzvbi [no]
289   --enable-lv2             enable LV2 audio filtering [no]
290   --disable-lzma           disable lzma [autodetect]
291   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
292   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
293   --enable-mbedtls         enable mbedTLS, needed for https support
294                            if openssl, gnutls or libtls is not used [no]
295   --enable-mediacodec      enable Android MediaCodec support [no]
296   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
297   --enable-openal          enable OpenAL 1.1 capture support [no]
298   --enable-opencl          enable OpenCL processing [no]
299   --enable-opengl          enable OpenGL rendering [no]
300   --enable-openssl         enable openssl, needed for https support
301                            if gnutls, libtls or mbedtls is not used [no]
302   --disable-sndio          disable sndio support [autodetect]
303   --disable-schannel       disable SChannel SSP, needed for TLS support on
304                            Windows if openssl and gnutls are not used [autodetect]
305   --disable-sdl2           disable sdl2 [autodetect]
306   --disable-securetransport disable Secure Transport, needed for TLS support
307                            on OSX if openssl and gnutls are not used [autodetect]
308   --disable-xlib           disable xlib [autodetect]
309   --disable-zlib           disable zlib [autodetect]
310
311   The following libraries provide various hardware acceleration features:
312   --disable-amf            disable AMF video encoding code [autodetect]
313   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
314   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
315   --disable-cuvid          disable Nvidia CUVID support [autodetect]
316   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
317   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
318   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
319   --enable-libdrm          enable DRM code (Linux) [no]
320   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
321   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
322   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
323   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
324   --disable-nvenc          disable Nvidia video encoding code [autodetect]
325   --enable-omx             enable OpenMAX IL code [no]
326   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
327   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
328   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
329   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
330   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
331   --disable-videotoolbox   disable VideoToolbox code [autodetect]
332
333 Toolchain options:
334   --arch=ARCH              select architecture [$arch]
335   --cpu=CPU                select the minimum required CPU (affects
336                            instruction selection, may crash on older CPUs)
337   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
338   --progs-suffix=SUFFIX    program name suffix []
339   --enable-cross-compile   assume a cross-compiler is used
340   --sysroot=PATH           root of cross-build tree
341   --sysinclude=PATH        location of cross-build system headers
342   --target-os=OS           compiler targets OS [$target_os]
343   --target-exec=CMD        command to run executables on target
344   --target-path=DIR        path to view of build directory on target
345   --target-samples=DIR     path to samples directory on target
346   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
347   --toolchain=NAME         set tool defaults according to NAME
348                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
349                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
350                            valgrind-massif, valgrind-memcheck,
351                            msvc, icl, gcov, llvm-cov, hardened)
352   --nm=NM                  use nm tool NM [$nm_default]
353   --ar=AR                  use archive tool AR [$ar_default]
354   --as=AS                  use assembler AS [$as_default]
355   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
356   --strip=STRIP            use strip tool STRIP [$strip_default]
357   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
358   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
359   --cc=CC                  use C compiler CC [$cc_default]
360   --cxx=CXX                use C compiler CXX [$cxx_default]
361   --objcc=OCC              use ObjC compiler OCC [$cc_default]
362   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
363   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
364   --ld=LD                  use linker LD [$ld_default]
365   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
366   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
367   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
368   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
369   --host-cc=HOSTCC         use host C compiler HOSTCC
370   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
371   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
372   --host-ld=HOSTLD         use host linker HOSTLD
373   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
374   --host-libs=HLIBS        use libs HLIBS when linking for host
375   --host-os=OS             compiler host OS [$target_os]
376   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
377   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
378   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
379   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
380   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
381   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
382   --extra-libs=ELIBS       add ELIBS [$ELIBS]
383   --extra-version=STRING   version string suffix []
384   --optflags=OPTFLAGS      override optimization-related compiler flags
385   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
386   --build-suffix=SUFFIX    library name suffix []
387   --enable-pic             build position-independent code
388   --enable-thumb           compile for Thumb instruction set
389   --enable-lto             use link-time optimization
390   --env="ENV=override"     override the environment variables
391
392 Advanced options (experts only):
393   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
394   --custom-allocator=NAME  use a supported custom allocator
395   --disable-symver         disable symbol versioning
396   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
397   --disable-safe-bitstream-reader
398                            disable buffer boundary checking in bitreaders
399                            (faster, but may crash)
400   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
401
402 Optimization options (experts only):
403   --disable-asm            disable all assembly optimizations
404   --disable-altivec        disable AltiVec optimizations
405   --disable-vsx            disable VSX optimizations
406   --disable-power8         disable POWER8 optimizations
407   --disable-amd3dnow       disable 3DNow! optimizations
408   --disable-amd3dnowext    disable 3DNow! extended optimizations
409   --disable-mmx            disable MMX optimizations
410   --disable-mmxext         disable MMXEXT optimizations
411   --disable-sse            disable SSE optimizations
412   --disable-sse2           disable SSE2 optimizations
413   --disable-sse3           disable SSE3 optimizations
414   --disable-ssse3          disable SSSE3 optimizations
415   --disable-sse4           disable SSE4 optimizations
416   --disable-sse42          disable SSE4.2 optimizations
417   --disable-avx            disable AVX optimizations
418   --disable-xop            disable XOP optimizations
419   --disable-fma3           disable FMA3 optimizations
420   --disable-fma4           disable FMA4 optimizations
421   --disable-avx2           disable AVX2 optimizations
422   --disable-avx512         disable AVX-512 optimizations
423   --disable-aesni          disable AESNI optimizations
424   --disable-armv5te        disable armv5te optimizations
425   --disable-armv6          disable armv6 optimizations
426   --disable-armv6t2        disable armv6t2 optimizations
427   --disable-vfp            disable VFP optimizations
428   --disable-neon           disable NEON optimizations
429   --disable-inline-asm     disable use of inline assembly
430   --disable-x86asm         disable use of standalone x86 assembly
431   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
432   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
433   --disable-msa            disable MSA optimizations
434   --disable-mipsfpu        disable floating point MIPS optimizations
435   --disable-mmi            disable Loongson SIMD optimizations
436   --disable-fast-unaligned consider unaligned accesses slow
437
438 Developer options (useful when working on FFmpeg itself):
439   --disable-debug          disable debugging symbols
440   --enable-debug=LEVEL     set the debug level [$debuglevel]
441   --disable-optimizations  disable compiler optimizations
442   --enable-extra-warnings  enable more compiler warnings
443   --disable-stripping      disable stripping of executables and shared libraries
444   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
445                            2 causes a slowdown at runtime.
446   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
447   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
448                            leaks and errors, using the specified valgrind binary.
449                            Cannot be combined with --target-exec
450   --enable-ftrapv          Trap arithmetic overflows
451   --samples=PATH           location of test samples for FATE, if not set use
452                            \$FATE_SAMPLES at make invocation time.
453   --enable-neon-clobber-test check NEON registers for clobbering (should be
454                            used only for debugging purposes)
455   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
456                            should be used only for debugging purposes)
457   --enable-random          randomly enable/disable components
458   --disable-random
459   --enable-random=LIST     randomly enable/disable specific components or
460   --disable-random=LIST    component groups. LIST is a comma-separated list
461                            of NAME[:PROB] entries where NAME is a component
462                            (group) and PROB the probability associated with
463                            NAME (default 0.5).
464   --random-seed=VALUE      seed value for --enable/disable-random
465   --disable-valgrind-backtrace do not print a backtrace under Valgrind
466                            (only applies to --disable-optimizations builds)
467   --enable-osfuzz          Enable building fuzzer tool
468   --libfuzzer=PATH         path to libfuzzer
469   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
470                            in the name) of tests whose result is ignored
471   --enable-linux-perf      enable Linux Performance Monitor API
472
473 NOTE: Object files are built at the place where configure is launched.
474 EOF
475   exit 0
476 }
477
478 if test -t 1 && which tput >/dev/null 2>&1; then
479     ncolors=$(tput colors)
480     if test -n "$ncolors" && test $ncolors -ge 8; then
481         bold_color=$(tput bold)
482         warn_color=$(tput setaf 3)
483         error_color=$(tput setaf 1)
484         reset_color=$(tput sgr0)
485     fi
486     # 72 used instead of 80 since that's the default of pr
487     ncols=$(tput cols)
488 fi
489 : ${ncols:=72}
490
491 log(){
492     echo "$@" >> $logfile
493 }
494
495 log_file(){
496     log BEGIN $1
497     pr -n -t $1 >> $logfile
498     log END $1
499 }
500
501 warn(){
502     log "WARNING: $*"
503     WARNINGS="${WARNINGS}WARNING: $*\n"
504 }
505
506 die(){
507     log "$@"
508     echo "$error_color$bold_color$@$reset_color"
509     cat <<EOF
510
511 If you think configure made a mistake, make sure you are using the latest
512 version from Git.  If the latest version fails, report the problem to the
513 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
514 EOF
515     if disabled logging; then
516         cat <<EOF
517 Rerun configure with logging enabled (do not use --disable-logging), and
518 include the log this produces with your report.
519 EOF
520     else
521         cat <<EOF
522 Include the log file "$logfile" produced by configure as this will help
523 solve the problem.
524 EOF
525     fi
526     exit 1
527 }
528
529 # Avoid locale weirdness, besides we really just want to translate ASCII.
530 toupper(){
531     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
532 }
533
534 tolower(){
535     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
536 }
537
538 c_escape(){
539     echo "$*" | sed 's/["\\]/\\\0/g'
540 }
541
542 sh_quote(){
543     v=$(echo "$1" | sed "s/'/'\\\\''/g")
544     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
545     echo "$v"
546 }
547
548 cleanws(){
549     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
550 }
551
552 filter(){
553     pat=$1
554     shift
555     for v; do
556         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
557     done
558 }
559
560 filter_out(){
561     pat=$1
562     shift
563     for v; do
564         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
565     done
566 }
567
568 map(){
569     m=$1
570     shift
571     for v; do eval $m; done
572 }
573
574 add_suffix(){
575     suffix=$1
576     shift
577     for v; do echo ${v}${suffix}; done
578 }
579
580 remove_suffix(){
581     suffix=$1
582     shift
583     for v; do echo ${v%$suffix}; done
584 }
585
586 set_all(){
587     value=$1
588     shift
589     for var in $*; do
590         eval $var=$value
591     done
592 }
593
594 set_weak(){
595     value=$1
596     shift
597     for var; do
598         eval : \${$var:=$value}
599     done
600 }
601
602 sanitize_var_name(){
603     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
604 }
605
606 set_sanitized(){
607     var=$1
608     shift
609     eval $(sanitize_var_name "$var")='$*'
610 }
611
612 get_sanitized(){
613     eval echo \$$(sanitize_var_name "$1")
614 }
615
616 pushvar(){
617     for pvar in $*; do
618         eval level=\${${pvar}_level:=0}
619         eval ${pvar}_${level}="\$$pvar"
620         eval ${pvar}_level=$(($level+1))
621     done
622 }
623
624 popvar(){
625     for pvar in $*; do
626         eval level=\${${pvar}_level:-0}
627         test $level = 0 && continue
628         eval level=$(($level-1))
629         eval $pvar="\${${pvar}_${level}}"
630         eval ${pvar}_level=$level
631         eval unset ${pvar}_${level}
632     done
633 }
634
635 request(){
636     for var in $*; do
637         eval ${var}_requested=yes
638         eval $var=
639     done
640 }
641
642 enable(){
643     set_all yes $*
644 }
645
646 disable(){
647     set_all no $*
648 }
649
650 enable_weak(){
651     set_weak yes $*
652 }
653
654 disable_weak(){
655     set_weak no $*
656 }
657
658 enable_sanitized(){
659     for var; do
660         enable $(sanitize_var_name $var)
661     done
662 }
663
664 disable_sanitized(){
665     for var; do
666         disable $(sanitize_var_name $var)
667     done
668 }
669
670 do_enable_deep(){
671     for var; do
672         enabled $var && continue
673         eval sel="\$${var}_select"
674         eval sgs="\$${var}_suggest"
675         pushvar var sgs
676         enable_deep $sel
677         popvar sgs
678         enable_deep_weak $sgs
679         popvar var
680     done
681 }
682
683 enable_deep(){
684     do_enable_deep $*
685     enable $*
686 }
687
688 enable_deep_weak(){
689     for var; do
690         disabled $var && continue
691         pushvar var
692         do_enable_deep $var
693         popvar var
694         enable_weak $var
695     done
696 }
697
698 requested(){
699     test "${1#!}" = "$1" && op="=" || op="!="
700     eval test "x\$${1#!}_requested" $op "xyes"
701 }
702
703 enabled(){
704     test "${1#!}" = "$1" && op="=" || op="!="
705     eval test "x\$${1#!}" $op "xyes"
706 }
707
708 disabled(){
709     test "${1#!}" = "$1" && op="=" || op="!="
710     eval test "x\$${1#!}" $op "xno"
711 }
712
713 enabled_all(){
714     for opt; do
715         enabled $opt || return 1
716     done
717 }
718
719 disabled_all(){
720     for opt; do
721         disabled $opt || return 1
722     done
723 }
724
725 enabled_any(){
726     for opt; do
727         enabled $opt && return 0
728     done
729 }
730
731 disabled_any(){
732     for opt; do
733         disabled $opt && return 0
734     done
735     return 1
736 }
737
738 set_default(){
739     for opt; do
740         eval : \${$opt:=\$${opt}_default}
741     done
742 }
743
744 is_in(){
745     value=$1
746     shift
747     for var in $*; do
748         [ $var = $value ] && return 0
749     done
750     return 1
751 }
752
753 check_deps(){
754     for cfg; do
755         enabled ${cfg}_checking && die "Circular dependency for $cfg."
756         disabled ${cfg}_checking && continue
757         enable ${cfg}_checking
758
759         eval dep_all="\$${cfg}_deps"
760         eval dep_any="\$${cfg}_deps_any"
761         eval dep_con="\$${cfg}_conflict"
762         eval dep_sel="\$${cfg}_select"
763         eval dep_sgs="\$${cfg}_suggest"
764         eval dep_ifa="\$${cfg}_if"
765         eval dep_ifn="\$${cfg}_if_any"
766
767         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
768         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
769         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
770
771         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
772         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
773         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
774         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
775         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
776         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
777
778         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
779
780         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
781             # filter out library deps, these do not belong in extralibs
782             is_in $dep $LIBRARY_LIST && continue
783             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
784         done
785
786         disable ${cfg}_checking
787     done
788 }
789
790 print_config(){
791     pfx=$1
792     files=$2
793     shift 2
794     map 'eval echo "$v \${$v:-no}"' "$@" |
795     awk "BEGIN { split(\"$files\", files) }
796         {
797             c = \"$pfx\" toupper(\$1);
798             v = \$2;
799             sub(/yes/, 1, v);
800             sub(/no/,  0, v);
801             for (f in files) {
802                 file = files[f];
803                 if (file ~ /\\.h\$/) {
804                     printf(\"#define %s %d\\n\", c, v) >>file;
805                 } else if (file ~ /\\.asm\$/) {
806                     printf(\"%%define %s %d\\n\", c, v) >>file;
807                 } else if (file ~ /\\.mak\$/) {
808                     n = -v ? \"\" : \"!\";
809                     printf(\"%s%s=yes\\n\", n, c) >>file;
810                 } else if (file ~ /\\.texi\$/) {
811                     pre = -v ? \"\" : \"@c \";
812                     yesno = \$2;
813                     c2 = tolower(c);
814                     gsub(/_/, \"-\", c2);
815                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
816                 }
817             }
818         }"
819 }
820
821 print_enabled(){
822     suf=$1
823     shift
824     for v; do
825         enabled $v && printf "%s\n" ${v%$suf}
826     done
827 }
828
829 append(){
830     var=$1
831     shift
832     eval "$var=\"\$$var $*\""
833 }
834
835 prepend(){
836     var=$1
837     shift
838     eval "$var=\"$* \$$var\""
839 }
840
841 unique(){
842     var=$1
843     uniq_list=""
844     for tok in $(eval echo \$$var); do
845         uniq_list="$(filter_out $tok $uniq_list) $tok"
846     done
847     eval "$var=\"${uniq_list}\""
848 }
849
850 resolve(){
851     var=$1
852     tmpvar=
853     for entry in $(eval echo \$$var); do
854         tmpvar="$tmpvar $(eval echo \$${entry})"
855     done
856     eval "$var=\"${tmpvar}\""
857 }
858
859 add_cppflags(){
860     append CPPFLAGS "$@"
861 }
862
863 add_cflags(){
864     append CFLAGS $($cflags_filter "$@")
865 }
866
867 add_cflags_headers(){
868     append CFLAGS_HEADERS $($cflags_filter "$@")
869 }
870
871 add_cxxflags(){
872     append CXXFLAGS $($cflags_filter "$@")
873 }
874
875 add_asflags(){
876     append ASFLAGS $($asflags_filter "$@")
877 }
878
879 add_objcflags(){
880     append OBJCFLAGS $($objcflags_filter "$@")
881 }
882
883 add_ldflags(){
884     append LDFLAGS $($ldflags_filter "$@")
885 }
886
887 add_ldexeflags(){
888     append LDEXEFLAGS $($ldflags_filter "$@")
889 }
890
891 add_ldsoflags(){
892     append LDSOFLAGS $($ldflags_filter "$@")
893 }
894
895 add_stripflags(){
896     append ASMSTRIPFLAGS "$@"
897 }
898
899 add_extralibs(){
900     prepend extralibs $($ldflags_filter "$@")
901 }
902
903 add_host_cppflags(){
904     append host_cppflags "$@"
905 }
906
907 add_host_cflags(){
908     append host_cflags $($host_cflags_filter "$@")
909 }
910
911 add_host_ldflags(){
912     append host_ldflags $($host_ldflags_filter "$@")
913 }
914
915 add_compat(){
916     append compat_objs $1
917     shift
918     map 'add_cppflags -D$v' "$@"
919 }
920
921 test_cmd(){
922     log "$@"
923     "$@" >> $logfile 2>&1
924 }
925
926 test_stat(){
927     log test_stat "$@"
928     stat "$1" >> $logfile 2>&1
929 }
930
931 cc_o(){
932     eval printf '%s\\n' $CC_O
933 }
934
935 cc_e(){
936     eval printf '%s\\n' $CC_E
937 }
938
939 test_cc(){
940     log test_cc "$@"
941     cat > $TMPC
942     log_file $TMPC
943     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
944 }
945
946 test_cxx(){
947     log test_cxx "$@"
948     cat > $TMPCPP
949     log_file $TMPCPP
950     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
951 }
952
953 test_objcc(){
954     log test_objcc "$@"
955     cat > $TMPM
956     log_file $TMPM
957     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
958 }
959
960 test_cpp(){
961     log test_cpp "$@"
962     cat > $TMPC
963     log_file $TMPC
964     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
965 }
966
967 as_o(){
968     eval printf '%s\\n' $AS_O
969 }
970
971 test_as(){
972     log test_as "$@"
973     cat > $TMPS
974     log_file $TMPS
975     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
976 }
977
978 x86asm_o(){
979     eval printf '%s\\n' $X86ASM_O
980 }
981
982 test_x86asm(){
983     log test_x86asm "$@"
984     echo "$1" > $TMPASM
985     log_file $TMPASM
986     shift
987     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
988 }
989
990 check_cmd(){
991     log check_cmd "$@"
992     cmd=$1
993     disabled $cmd && return
994     disable $cmd
995     test_cmd $@ && enable $cmd
996 }
997
998 check_as(){
999     log check_as "$@"
1000     name=$1
1001     code=$2
1002     shift 2
1003     disable $name
1004     test_as $@ <<EOF && enable $name
1005 $code
1006 EOF
1007 }
1008
1009 check_inline_asm(){
1010     log check_inline_asm "$@"
1011     name="$1"
1012     code="$2"
1013     shift 2
1014     disable $name
1015     test_cc "$@" <<EOF && enable $name
1016 void foo(void){ __asm__ volatile($code); }
1017 EOF
1018 }
1019
1020 check_inline_asm_flags(){
1021     log check_inline_asm_flags "$@"
1022     name="$1"
1023     code="$2"
1024     flags=''
1025     shift 2
1026     while [ "$1" != "" ]; do
1027       append flags $1
1028       shift
1029     done;
1030     disable $name
1031     cat > $TMPC <<EOF
1032 void foo(void){ __asm__ volatile($code); }
1033 EOF
1034     log_file $TMPC
1035     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1036     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1037 }
1038
1039 check_insn(){
1040     log check_insn "$@"
1041     check_inline_asm ${1}_inline "$2"
1042     check_as ${1}_external "$2"
1043 }
1044
1045 check_x86asm(){
1046     log check_x86asm "$@"
1047     name=$1
1048     shift
1049     disable $name
1050     test_x86asm "$@" && enable $name
1051 }
1052
1053 ld_o(){
1054     eval printf '%s\\n' $LD_O
1055 }
1056
1057 test_ld(){
1058     log test_ld "$@"
1059     type=$1
1060     shift 1
1061     flags=$(filter_out '-l*|*.so' $@)
1062     libs=$(filter '-l*|*.so' $@)
1063     test_$type $($cflags_filter $flags) || return
1064     flags=$($ldflags_filter $flags)
1065     libs=$($ldflags_filter $libs)
1066     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1067 }
1068
1069 check_ld(){
1070     log check_ld "$@"
1071     type=$1
1072     name=$2
1073     shift 2
1074     disable $name
1075     test_ld $type $@ && enable $name
1076 }
1077
1078 print_include(){
1079     hdr=$1
1080     test "${hdr%.h}" = "${hdr}" &&
1081         echo "#include $hdr"    ||
1082         echo "#include <$hdr>"
1083 }
1084
1085 test_code(){
1086     log test_code "$@"
1087     check=$1
1088     headers=$2
1089     code=$3
1090     shift 3
1091     {
1092         for hdr in $headers; do
1093             print_include $hdr
1094         done
1095         echo "int main(void) { $code; return 0; }"
1096     } | test_$check "$@"
1097 }
1098
1099 check_cppflags(){
1100     log check_cppflags "$@"
1101     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1102 #include <stdlib.h>
1103 EOF
1104 }
1105
1106 test_cflags(){
1107     log test_cflags "$@"
1108     set -- $($cflags_filter "$@")
1109     test_cc "$@" <<EOF
1110 int x;
1111 EOF
1112 }
1113
1114 check_cflags(){
1115     log check_cflags "$@"
1116     test_cflags "$@" && add_cflags "$@"
1117 }
1118
1119 check_cxxflags(){
1120     log check_cxxflags "$@"
1121     set -- $($cflags_filter "$@")
1122     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1123 int x;
1124 EOF
1125 }
1126
1127 test_objcflags(){
1128     log test_objcflags "$@"
1129     set -- $($objcflags_filter "$@")
1130     test_objcc "$@" <<EOF
1131 int x;
1132 EOF
1133 }
1134
1135 check_objcflags(){
1136     log check_objcflags "$@"
1137     test_objcflags "$@" && add_objcflags "$@"
1138 }
1139
1140 test_ldflags(){
1141     log test_ldflags "$@"
1142     set -- $($ldflags_filter "$@")
1143     test_ld "cc" "$@" <<EOF
1144 int main(void){ return 0; }
1145 EOF
1146 }
1147
1148 check_ldflags(){
1149     log check_ldflags "$@"
1150     test_ldflags "$@" && add_ldflags "$@"
1151 }
1152
1153 test_stripflags(){
1154     log test_stripflags "$@"
1155     # call test_cc to get a fresh TMPO
1156     test_cc <<EOF
1157 int main(void) { return 0; }
1158 EOF
1159     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1160 }
1161
1162 check_stripflags(){
1163     log check_stripflags "$@"
1164     test_stripflags "$@" && add_stripflags "$@"
1165 }
1166
1167 check_header(){
1168     log check_header "$@"
1169     headers=$1
1170     shift
1171     disable_sanitized $headers
1172     {
1173         for hdr in $headers; do
1174             print_include $hdr
1175         done
1176         echo "int x;"
1177     } | test_cpp "$@" && enable_sanitized $headers
1178 }
1179
1180 check_header_objcc(){
1181     log check_header_objcc "$@"
1182     rm -f -- "$TMPO"
1183     header=$1
1184     shift
1185     disable_sanitized $header
1186     {
1187        echo "#include <$header>"
1188        echo "int main(void) { return 0; }"
1189     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1190 }
1191
1192 check_apple_framework(){
1193     log check_apple_framework "$@"
1194     framework="$1"
1195     name="$(tolower $framework)"
1196     header="${framework}/${framework}.h"
1197     disable $name
1198     check_header_objcc $header &&
1199         enable $name && eval ${name}_extralibs='"-framework $framework"'
1200 }
1201
1202 check_func(){
1203     log check_func "$@"
1204     func=$1
1205     shift
1206     disable $func
1207     test_ld "cc" "$@" <<EOF && enable $func
1208 extern int $func();
1209 int main(void){ $func(); }
1210 EOF
1211 }
1212
1213 check_complexfunc(){
1214     log check_complexfunc "$@"
1215     func=$1
1216     narg=$2
1217     shift 2
1218     test $narg = 2 && args="f, g" || args="f * I"
1219     disable $func
1220     test_ld "cc" "$@" <<EOF && enable $func
1221 #include <complex.h>
1222 #include <math.h>
1223 float foo(complex float f, complex float g) { return $func($args); }
1224 int main(void){ return (int) foo; }
1225 EOF
1226 }
1227
1228 check_mathfunc(){
1229     log check_mathfunc "$@"
1230     func=$1
1231     narg=$2
1232     shift 2
1233     test $narg = 2 && args="f, g" || args="f"
1234     disable $func
1235     test_ld "cc" "$@" <<EOF && enable $func
1236 #include <math.h>
1237 float foo(float f, float g) { return $func($args); }
1238 int main(void){ return (int) foo; }
1239 EOF
1240 }
1241
1242 check_func_headers(){
1243     log check_func_headers "$@"
1244     headers=$1
1245     funcs=$2
1246     shift 2
1247     {
1248         for hdr in $headers; do
1249             print_include $hdr
1250         done
1251         echo "#include <stdint.h>"
1252         for func in $funcs; do
1253             echo "long check_$func(void) { return (long) $func; }"
1254         done
1255         echo "int main(void) { int ret = 0;"
1256         # LTO could optimize out the test functions without this
1257         for func in $funcs; do
1258             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1259         done
1260         echo "return ret; }"
1261     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1262 }
1263
1264 check_class_headers_cpp(){
1265     log check_class_headers_cpp "$@"
1266     headers=$1
1267     classes=$2
1268     shift 2
1269     {
1270         for hdr in $headers; do
1271             echo "#include <$hdr>"
1272         done
1273         echo "int main(void) { "
1274         i=1
1275         for class in $classes; do
1276             echo "$class obj$i;"
1277             i=$(expr $i + 1)
1278         done
1279         echo "return 0; }"
1280     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1281 }
1282
1283 test_cpp_condition(){
1284     log test_cpp_condition "$@"
1285     header=$1
1286     condition=$2
1287     shift 2
1288     test_cpp "$@" <<EOF
1289 #include <$header>
1290 #if !($condition)
1291 #error "unsatisfied condition: $condition"
1292 #endif
1293 EOF
1294 }
1295
1296 check_cpp_condition(){
1297     log check_cpp_condition "$@"
1298     name=$1
1299     shift 1
1300     disable $name
1301     test_cpp_condition "$@" && enable $name
1302 }
1303
1304 test_cflags_cc(){
1305     log test_cflags_cc "$@"
1306     flags=$1
1307     header=$2
1308     condition=$3
1309     shift 3
1310     set -- $($cflags_filter "$flags")
1311     test_cc "$@" <<EOF
1312 #include <$header>
1313 #if !($condition)
1314 #error "unsatisfied condition: $condition"
1315 #endif
1316 EOF
1317 }
1318
1319 check_lib(){
1320     log check_lib "$@"
1321     name="$1"
1322     headers="$2"
1323     funcs="$3"
1324     shift 3
1325     disable $name
1326     check_func_headers "$headers" "$funcs" "$@" &&
1327         enable $name && eval ${name}_extralibs="\$@"
1328 }
1329
1330 check_lib_cpp(){
1331     log check_lib_cpp "$@"
1332     name="$1"
1333     headers="$2"
1334     classes="$3"
1335     shift 3
1336     disable $name
1337     check_class_headers_cpp "$headers" "$classes" "$@" &&
1338         enable $name && eval ${name}_extralibs="\$@"
1339 }
1340
1341 test_pkg_config(){
1342     log test_pkg_config "$@"
1343     name="$1"
1344     pkg_version="$2"
1345     pkg="${2%% *}"
1346     headers="$3"
1347     funcs="$4"
1348     shift 4
1349     disable $name
1350     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1351     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1352     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1353     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1354         enable $name &&
1355         set_sanitized "${name}_cflags"    $pkg_cflags &&
1356         set_sanitized "${name}_extralibs" $pkg_libs
1357 }
1358
1359 check_pkg_config(){
1360     log check_pkg_config "$@"
1361     name="$1"
1362     test_pkg_config "$@" &&
1363         eval add_cflags \$${name}_cflags
1364 }
1365
1366 test_exec(){
1367     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1368 }
1369
1370 check_exec_crash(){
1371     log check_exec_crash "$@"
1372     code=$(cat)
1373
1374     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1375     # are safe but may not be available everywhere.  Thus we use
1376     # raise(SIGTERM) instead.  The check is run in a subshell so we
1377     # can redirect the "Terminated" message from the shell.  SIGBUS
1378     # is not defined by standard C so it is used conditionally.
1379
1380     (test_exec "$@") >> $logfile 2>&1 <<EOF
1381 #include <signal.h>
1382 static void sighandler(int sig){
1383     raise(SIGTERM);
1384 }
1385 int foo(void){
1386     $code
1387 }
1388 int (*func_ptr)(void) = foo;
1389 int main(void){
1390     signal(SIGILL, sighandler);
1391     signal(SIGFPE, sighandler);
1392     signal(SIGSEGV, sighandler);
1393 #ifdef SIGBUS
1394     signal(SIGBUS, sighandler);
1395 #endif
1396     return func_ptr();
1397 }
1398 EOF
1399 }
1400
1401 check_type(){
1402     log check_type "$@"
1403     headers=$1
1404     type=$2
1405     shift 2
1406     disable_sanitized "$type"
1407     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1408 }
1409
1410 check_struct(){
1411     log check_struct "$@"
1412     headers=$1
1413     struct=$2
1414     member=$3
1415     shift 3
1416     disable_sanitized "${struct}_${member}"
1417     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1418         enable_sanitized "${struct}_${member}"
1419 }
1420
1421 check_builtin(){
1422     log check_builtin "$@"
1423     name=$1
1424     headers=$2
1425     builtin=$3
1426     shift 3
1427     disable "$name"
1428     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1429 }
1430
1431 check_compile_assert(){
1432     log check_compile_assert "$@"
1433     name=$1
1434     headers=$2
1435     condition=$3
1436     shift 3
1437     disable "$name"
1438     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1439 }
1440
1441 check_cc(){
1442     log check_cc "$@"
1443     name=$1
1444     shift
1445     disable "$name"
1446     test_code cc "$@" && enable "$name"
1447 }
1448
1449 require(){
1450     log require "$@"
1451     name_version="$1"
1452     name="${1%% *}"
1453     shift
1454     check_lib $name "$@" || die "ERROR: $name_version not found"
1455 }
1456
1457 require_cc(){
1458     log require_cc "$@"
1459     name="$1"
1460     shift
1461     test_code cc "$@" || die "ERROR: $name failed"
1462 }
1463
1464 require_cpp(){
1465     name="$1"
1466     headers="$2"
1467     classes="$3"
1468     shift 3
1469     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1470 }
1471
1472 require_header(){
1473     log require_header "$@"
1474     headers="$1"
1475     check_header "$@" || die "ERROR: $headers not found"
1476 }
1477
1478 require_cpp_condition(){
1479     log require_cpp_condition "$@"
1480     condition="$2"
1481     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1482 }
1483
1484 require_pkg_config(){
1485     log require_pkg_config "$@"
1486     pkg_version="$2"
1487     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1488 }
1489
1490 hostcc_e(){
1491     eval printf '%s\\n' $HOSTCC_E
1492 }
1493
1494 hostcc_o(){
1495     eval printf '%s\\n' $HOSTCC_O
1496 }
1497
1498 test_host_cc(){
1499     log test_host_cc "$@"
1500     cat > $TMPC
1501     log_file $TMPC
1502     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1503 }
1504
1505 test_host_cpp(){
1506     log test_host_cpp "$@"
1507     cat > $TMPC
1508     log_file $TMPC
1509     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1510 }
1511
1512 check_host_cppflags(){
1513     log check_host_cppflags "$@"
1514     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1515 #include <stdlib.h>
1516 EOF
1517 }
1518
1519 check_host_cflags(){
1520     log check_host_cflags "$@"
1521     set -- $($host_cflags_filter "$@")
1522     test_host_cc "$@" <<EOF && append host_cflags "$@"
1523 int x;
1524 EOF
1525 }
1526
1527 test_host_cpp_condition(){
1528     log test_host_cpp_condition "$@"
1529     header=$1
1530     condition=$2
1531     shift 2
1532     test_host_cpp "$@" <<EOF
1533 #include <$header>
1534 #if !($condition)
1535 #error "unsatisfied condition: $condition"
1536 #endif
1537 EOF
1538 }
1539
1540 check_host_cpp_condition(){
1541     log check_host_cpp_condition "$@"
1542     name=$1
1543     shift 1
1544     disable $name
1545     test_host_cpp_condition "$@" && enable $name
1546 }
1547
1548 cp_if_changed(){
1549     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1550     mkdir -p "$(dirname $2)"
1551     cp -f "$1" "$2"
1552 }
1553
1554 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1555 # system-dependent things.
1556
1557 AVCODEC_COMPONENTS="
1558     bsfs
1559     decoders
1560     encoders
1561     hwaccels
1562     parsers
1563 "
1564
1565 AVDEVICE_COMPONENTS="
1566     indevs
1567     outdevs
1568 "
1569
1570 AVFILTER_COMPONENTS="
1571     filters
1572 "
1573
1574 AVFORMAT_COMPONENTS="
1575     demuxers
1576     muxers
1577     protocols
1578 "
1579
1580 COMPONENT_LIST="
1581     $AVCODEC_COMPONENTS
1582     $AVDEVICE_COMPONENTS
1583     $AVFILTER_COMPONENTS
1584     $AVFORMAT_COMPONENTS
1585 "
1586
1587 EXAMPLE_LIST="
1588     avio_dir_cmd_example
1589     avio_reading_example
1590     decode_audio_example
1591     decode_video_example
1592     demuxing_decoding_example
1593     encode_audio_example
1594     encode_video_example
1595     extract_mvs_example
1596     filter_audio_example
1597     filtering_audio_example
1598     filtering_video_example
1599     http_multiclient_example
1600     hw_decode_example
1601     metadata_example
1602     muxing_example
1603     qsvdec_example
1604     remuxing_example
1605     resampling_audio_example
1606     scaling_video_example
1607     transcode_aac_example
1608     transcoding_example
1609     vaapi_encode_example
1610     vaapi_transcode_example
1611 "
1612
1613 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1614     alsa
1615     appkit
1616     avfoundation
1617     bzlib
1618     coreimage
1619     iconv
1620     libxcb
1621     libxcb_shm
1622     libxcb_shape
1623     libxcb_xfixes
1624     lzma
1625     schannel
1626     sdl2
1627     securetransport
1628     sndio
1629     xlib
1630     zlib
1631 "
1632
1633 EXTERNAL_LIBRARY_GPL_LIST="
1634     avisynth
1635     frei0r
1636     libcdio
1637     librubberband
1638     libvidstab
1639     libx264
1640     libx265
1641     libxavs
1642     libxvid
1643 "
1644
1645 EXTERNAL_LIBRARY_NONFREE_LIST="
1646     decklink
1647     libndi_newtek
1648     libfdk_aac
1649     openssl
1650     libtls
1651 "
1652
1653 EXTERNAL_LIBRARY_VERSION3_LIST="
1654     gmp
1655     libopencore_amrnb
1656     libopencore_amrwb
1657     libvmaf
1658     libvo_amrwbenc
1659     mbedtls
1660     rkmpp
1661 "
1662
1663 EXTERNAL_LIBRARY_GPLV3_LIST="
1664     libsmbclient
1665 "
1666
1667 EXTERNAL_LIBRARY_LIST="
1668     $EXTERNAL_LIBRARY_GPL_LIST
1669     $EXTERNAL_LIBRARY_NONFREE_LIST
1670     $EXTERNAL_LIBRARY_VERSION3_LIST
1671     $EXTERNAL_LIBRARY_GPLV3_LIST
1672     chromaprint
1673     gcrypt
1674     gnutls
1675     jni
1676     ladspa
1677     libaom
1678     libass
1679     libbluray
1680     libbs2b
1681     libcaca
1682     libcelt
1683     libcodec2
1684     libdc1394
1685     libdrm
1686     libflite
1687     libfontconfig
1688     libfreetype
1689     libfribidi
1690     libgme
1691     libgsm
1692     libiec61883
1693     libilbc
1694     libjack
1695     libkvazaar
1696     libmodplug
1697     libmp3lame
1698     libmysofa
1699     libopencv
1700     libopenh264
1701     libopenjpeg
1702     libopenmpt
1703     libopus
1704     libpulse
1705     librsvg
1706     librtmp
1707     libshine
1708     libsmbclient
1709     libsnappy
1710     libsoxr
1711     libspeex
1712     libsrt
1713     libssh
1714     libtesseract
1715     libtheora
1716     libtwolame
1717     libv4l2
1718     libvorbis
1719     libvpx
1720     libwavpack
1721     libwebp
1722     libxml2
1723     libzimg
1724     libzmq
1725     libzvbi
1726     lv2
1727     mediacodec
1728     openal
1729     opengl
1730 "
1731
1732 HWACCEL_AUTODETECT_LIBRARY_LIST="
1733     amf
1734     audiotoolbox
1735     crystalhd
1736     cuda
1737     cuvid
1738     d3d11va
1739     dxva2
1740     ffnvcodec
1741     nvdec
1742     nvenc
1743     vaapi
1744     vdpau
1745     videotoolbox
1746     v4l2_m2m
1747     xvmc
1748 "
1749
1750 # catchall list of things that require external libs to link
1751 EXTRALIBS_LIST="
1752     cpu_init
1753     cws2fws
1754 "
1755
1756 HWACCEL_LIBRARY_NONFREE_LIST="
1757     cuda_sdk
1758     libnpp
1759 "
1760
1761 HWACCEL_LIBRARY_LIST="
1762     $HWACCEL_LIBRARY_NONFREE_LIST
1763     libmfx
1764     mmal
1765     omx
1766     opencl
1767 "
1768
1769 DOCUMENT_LIST="
1770     doc
1771     htmlpages
1772     manpages
1773     podpages
1774     txtpages
1775 "
1776
1777 FEATURE_LIST="
1778     ftrapv
1779     gray
1780     hardcoded_tables
1781     omx_rpi
1782     runtime_cpudetect
1783     safe_bitstream_reader
1784     shared
1785     small
1786     static
1787     swscale_alpha
1788 "
1789
1790 LIBRARY_LIST="
1791     avcodec
1792     avdevice
1793     avfilter
1794     avformat
1795     avresample
1796     avutil
1797     postproc
1798     swresample
1799     swscale
1800 "
1801
1802 LICENSE_LIST="
1803     gpl
1804     nonfree
1805     version3
1806 "
1807
1808 PROGRAM_LIST="
1809     ffplay
1810     ffprobe
1811     ffmpeg
1812 "
1813
1814 SUBSYSTEM_LIST="
1815     dct
1816     dwt
1817     error_resilience
1818     faan
1819     fast_unaligned
1820     fft
1821     lsp
1822     lzo
1823     mdct
1824     pixelutils
1825     network
1826     rdft
1827 "
1828
1829 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1830 CONFIG_LIST="
1831     $DOCUMENT_LIST
1832     $EXAMPLE_LIST
1833     $EXTERNAL_LIBRARY_LIST
1834     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1835     $HWACCEL_LIBRARY_LIST
1836     $HWACCEL_AUTODETECT_LIBRARY_LIST
1837     $FEATURE_LIST
1838     $LICENSE_LIST
1839     $LIBRARY_LIST
1840     $PROGRAM_LIST
1841     $SUBSYSTEM_LIST
1842     autodetect
1843     fontconfig
1844     linux_perf
1845     memory_poisoning
1846     neon_clobber_test
1847     ossfuzz
1848     pic
1849     thumb
1850     valgrind_backtrace
1851     xmm_clobber_test
1852     $COMPONENT_LIST
1853 "
1854
1855 THREADS_LIST="
1856     pthreads
1857     os2threads
1858     w32threads
1859 "
1860
1861 ATOMICS_LIST="
1862     atomics_gcc
1863     atomics_suncc
1864     atomics_win32
1865 "
1866
1867 AUTODETECT_LIBS="
1868     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1869     $HWACCEL_AUTODETECT_LIBRARY_LIST
1870     $THREADS_LIST
1871 "
1872
1873 ARCH_LIST="
1874     aarch64
1875     alpha
1876     arm
1877     avr32
1878     avr32_ap
1879     avr32_uc
1880     bfin
1881     ia64
1882     m68k
1883     mips
1884     mips64
1885     parisc
1886     ppc
1887     ppc64
1888     s390
1889     sh4
1890     sparc
1891     sparc64
1892     tilegx
1893     tilepro
1894     tomi
1895     x86
1896     x86_32
1897     x86_64
1898 "
1899
1900 ARCH_EXT_LIST_ARM="
1901     armv5te
1902     armv6
1903     armv6t2
1904     armv8
1905     neon
1906     vfp
1907     vfpv3
1908     setend
1909 "
1910
1911 ARCH_EXT_LIST_MIPS="
1912     mipsfpu
1913     mips32r2
1914     mips32r5
1915     mips64r2
1916     mips32r6
1917     mips64r6
1918     mipsdsp
1919     mipsdspr2
1920     msa
1921 "
1922
1923 ARCH_EXT_LIST_LOONGSON="
1924     loongson2
1925     loongson3
1926     mmi
1927 "
1928
1929 ARCH_EXT_LIST_X86_SIMD="
1930     aesni
1931     amd3dnow
1932     amd3dnowext
1933     avx
1934     avx2
1935     avx512
1936     fma3
1937     fma4
1938     mmx
1939     mmxext
1940     sse
1941     sse2
1942     sse3
1943     sse4
1944     sse42
1945     ssse3
1946     xop
1947 "
1948
1949 ARCH_EXT_LIST_PPC="
1950     altivec
1951     dcbzl
1952     ldbrx
1953     power8
1954     ppc4xx
1955     vsx
1956 "
1957
1958 ARCH_EXT_LIST_X86="
1959     $ARCH_EXT_LIST_X86_SIMD
1960     cpunop
1961     i686
1962 "
1963
1964 ARCH_EXT_LIST="
1965     $ARCH_EXT_LIST_ARM
1966     $ARCH_EXT_LIST_PPC
1967     $ARCH_EXT_LIST_X86
1968     $ARCH_EXT_LIST_MIPS
1969     $ARCH_EXT_LIST_LOONGSON
1970 "
1971
1972 ARCH_FEATURES="
1973     aligned_stack
1974     fast_64bit
1975     fast_clz
1976     fast_cmov
1977     local_aligned
1978     simd_align_16
1979     simd_align_32
1980     simd_align_64
1981 "
1982
1983 BUILTIN_LIST="
1984     atomic_cas_ptr
1985     machine_rw_barrier
1986     MemoryBarrier
1987     mm_empty
1988     rdtsc
1989     sem_timedwait
1990     sync_val_compare_and_swap
1991 "
1992 HAVE_LIST_CMDLINE="
1993     inline_asm
1994     symver
1995     x86asm
1996 "
1997
1998 HAVE_LIST_PUB="
1999     bigendian
2000     fast_unaligned
2001 "
2002
2003 HEADERS_LIST="
2004     arpa_inet_h
2005     asm_types_h
2006     cdio_paranoia_h
2007     cdio_paranoia_paranoia_h
2008     cuda_h
2009     dispatch_dispatch_h
2010     dev_bktr_ioctl_bt848_h
2011     dev_bktr_ioctl_meteor_h
2012     dev_ic_bt8xx_h
2013     dev_video_bktr_ioctl_bt848_h
2014     dev_video_meteor_ioctl_meteor_h
2015     direct_h
2016     dirent_h
2017     dxgidebug_h
2018     dxva_h
2019     ES2_gl_h
2020     gsm_h
2021     io_h
2022     linux_perf_event_h
2023     machine_ioctl_bt848_h
2024     machine_ioctl_meteor_h
2025     malloc_h
2026     opencv2_core_core_c_h
2027     OpenGL_gl3_h
2028     poll_h
2029     sys_param_h
2030     sys_resource_h
2031     sys_select_h
2032     sys_soundcard_h
2033     sys_time_h
2034     sys_un_h
2035     sys_videoio_h
2036     termios_h
2037     udplite_h
2038     unistd_h
2039     valgrind_valgrind_h
2040     windows_h
2041     winsock2_h
2042 "
2043
2044 INTRINSICS_LIST="
2045     intrinsics_neon
2046 "
2047
2048 COMPLEX_FUNCS="
2049     cabs
2050     cexp
2051 "
2052
2053 MATH_FUNCS="
2054     atanf
2055     atan2f
2056     cbrt
2057     cbrtf
2058     copysign
2059     cosf
2060     erf
2061     exp2
2062     exp2f
2063     expf
2064     hypot
2065     isfinite
2066     isinf
2067     isnan
2068     ldexpf
2069     llrint
2070     llrintf
2071     log2
2072     log2f
2073     log10f
2074     lrint
2075     lrintf
2076     powf
2077     rint
2078     round
2079     roundf
2080     sinf
2081     trunc
2082     truncf
2083 "
2084
2085 SYSTEM_FEATURES="
2086     dos_paths
2087     libc_msvcrt
2088     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2089     section_data_rel_ro
2090     threads
2091     uwp
2092     winrt
2093 "
2094
2095 SYSTEM_FUNCS="
2096     access
2097     aligned_malloc
2098     arc4random
2099     clock_gettime
2100     closesocket
2101     CommandLineToArgvW
2102     fcntl
2103     getaddrinfo
2104     gethrtime
2105     getopt
2106     GetProcessAffinityMask
2107     GetProcessMemoryInfo
2108     GetProcessTimes
2109     getrusage
2110     GetSystemTimeAsFileTime
2111     gettimeofday
2112     glob
2113     glXGetProcAddress
2114     gmtime_r
2115     inet_aton
2116     isatty
2117     kbhit
2118     localtime_r
2119     lstat
2120     lzo1x_999_compress
2121     mach_absolute_time
2122     MapViewOfFile
2123     memalign
2124     mkstemp
2125     mmap
2126     mprotect
2127     nanosleep
2128     PeekNamedPipe
2129     posix_memalign
2130     pthread_cancel
2131     sched_getaffinity
2132     SecItemImport
2133     SetConsoleTextAttribute
2134     SetConsoleCtrlHandler
2135     setmode
2136     setrlimit
2137     Sleep
2138     strerror_r
2139     sysconf
2140     sysctl
2141     usleep
2142     UTGetOSTypeFromString
2143     VirtualAlloc
2144     wglGetProcAddress
2145 "
2146
2147 SYSTEM_LIBRARIES="
2148     bcrypt
2149     vaapi_drm
2150     vaapi_x11
2151     vdpau_x11
2152 "
2153
2154 TOOLCHAIN_FEATURES="
2155     as_arch_directive
2156     as_dn_directive
2157     as_fpu_directive
2158     as_func
2159     as_object_arch
2160     asm_mod_q
2161     blocks_extension
2162     ebp_available
2163     ebx_available
2164     gnu_as
2165     gnu_windres
2166     ibm_asm
2167     inline_asm_direct_symbol_refs
2168     inline_asm_labels
2169     inline_asm_nonlocal_labels
2170     pragma_deprecated
2171     rsync_contimeout
2172     symver_asm_label
2173     symver_gnu_asm
2174     vfp_args
2175     xform_asm
2176     xmm_clobbers
2177 "
2178
2179 TYPES_LIST="
2180     kCMVideoCodecType_HEVC
2181     socklen_t
2182     struct_addrinfo
2183     struct_group_source_req
2184     struct_ip_mreq_source
2185     struct_ipv6_mreq
2186     struct_msghdr_msg_flags
2187     struct_pollfd
2188     struct_rusage_ru_maxrss
2189     struct_sctp_event_subscribe
2190     struct_sockaddr_in6
2191     struct_sockaddr_sa_len
2192     struct_sockaddr_storage
2193     struct_stat_st_mtim_tv_nsec
2194     struct_v4l2_frmivalenum_discrete
2195 "
2196
2197 HAVE_LIST="
2198     $ARCH_EXT_LIST
2199     $(add_suffix _external $ARCH_EXT_LIST)
2200     $(add_suffix _inline   $ARCH_EXT_LIST)
2201     $ARCH_FEATURES
2202     $BUILTIN_LIST
2203     $COMPLEX_FUNCS
2204     $HAVE_LIST_CMDLINE
2205     $HAVE_LIST_PUB
2206     $HEADERS_LIST
2207     $INTRINSICS_LIST
2208     $MATH_FUNCS
2209     $SYSTEM_FEATURES
2210     $SYSTEM_FUNCS
2211     $SYSTEM_LIBRARIES
2212     $THREADS_LIST
2213     $TOOLCHAIN_FEATURES
2214     $TYPES_LIST
2215     makeinfo
2216     makeinfo_html
2217     opencl_d3d11
2218     opencl_drm_arm
2219     opencl_drm_beignet
2220     opencl_dxva2
2221     opencl_vaapi_beignet
2222     opencl_vaapi_intel_media
2223     perl
2224     pod2man
2225     texi2html
2226 "
2227
2228 # options emitted with CONFIG_ prefix but not available on the command line
2229 CONFIG_EXTRA="
2230     aandcttables
2231     ac3dsp
2232     adts_header
2233     audio_frame_queue
2234     audiodsp
2235     blockdsp
2236     bswapdsp
2237     cabac
2238     cbs
2239     cbs_h264
2240     cbs_h265
2241     cbs_mpeg2
2242     dirac_parse
2243     dvprofile
2244     exif
2245     faandct
2246     faanidct
2247     fdctdsp
2248     flacdsp
2249     fmtconvert
2250     frame_thread_encoder
2251     g722dsp
2252     golomb
2253     gplv3
2254     h263dsp
2255     h264chroma
2256     h264dsp
2257     h264parse
2258     h264pred
2259     h264qpel
2260     hevcparse
2261     hpeldsp
2262     huffman
2263     huffyuvdsp
2264     huffyuvencdsp
2265     idctdsp
2266     iirfilter
2267     mdct15
2268     intrax8
2269     iso_media
2270     ividsp
2271     jpegtables
2272     lgplv3
2273     libx262
2274     llauddsp
2275     llviddsp
2276     llvidencdsp
2277     lpc
2278     lzf
2279     me_cmp
2280     mpeg_er
2281     mpegaudio
2282     mpegaudiodsp
2283     mpegaudioheader
2284     mpegvideo
2285     mpegvideoenc
2286     mss34dsp
2287     pixblockdsp
2288     qpeldsp
2289     qsv
2290     qsvdec
2291     qsvenc
2292     qsvvpp
2293     rangecoder
2294     riffdec
2295     riffenc
2296     rtpdec
2297     rtpenc_chain
2298     rv34dsp
2299     sinewin
2300     snappy
2301     srtp
2302     startcode
2303     texturedsp
2304     texturedspenc
2305     tpeldsp
2306     vaapi_1
2307     vaapi_encode
2308     vc1dsp
2309     videodsp
2310     vp3dsp
2311     vp56dsp
2312     vp8dsp
2313     wma_freqs
2314     wmv2dsp
2315 "
2316
2317 CMDLINE_SELECT="
2318     $ARCH_EXT_LIST
2319     $CONFIG_LIST
2320     $HAVE_LIST_CMDLINE
2321     $THREADS_LIST
2322     asm
2323     cross_compile
2324     debug
2325     extra_warnings
2326     logging
2327     lto
2328     optimizations
2329     rpath
2330     stripping
2331 "
2332
2333 PATHS_LIST="
2334     bindir
2335     datadir
2336     docdir
2337     incdir
2338     libdir
2339     mandir
2340     pkgconfigdir
2341     prefix
2342     shlibdir
2343     install_name_dir
2344 "
2345
2346 CMDLINE_SET="
2347     $PATHS_LIST
2348     ar
2349     arch
2350     as
2351     assert_level
2352     build_suffix
2353     cc
2354     objcc
2355     cpu
2356     cross_prefix
2357     custom_allocator
2358     cxx
2359     dep_cc
2360     doxygen
2361     env
2362     extra_version
2363     gas
2364     host_cc
2365     host_cflags
2366     host_extralibs
2367     host_ld
2368     host_ldflags
2369     host_os
2370     ignore_tests
2371     install
2372     ld
2373     ln_s
2374     logfile
2375     malloc_prefix
2376     nm
2377     optflags
2378     nvcc
2379     nvccflags
2380     pkg_config
2381     pkg_config_flags
2382     progs_suffix
2383     random_seed
2384     ranlib
2385     samples
2386     strip
2387     sws_max_filter_size
2388     sysinclude
2389     sysroot
2390     target_exec
2391     target_os
2392     target_path
2393     target_samples
2394     tempprefix
2395     toolchain
2396     valgrind
2397     x86asmexe
2398 "
2399
2400 CMDLINE_APPEND="
2401     extra_cflags
2402     extra_cxxflags
2403     extra_objcflags
2404     host_cppflags
2405 "
2406
2407 # code dependency declarations
2408
2409 # architecture extensions
2410
2411 armv5te_deps="arm"
2412 armv6_deps="arm"
2413 armv6t2_deps="arm"
2414 armv8_deps="aarch64"
2415 neon_deps_any="aarch64 arm"
2416 intrinsics_neon_deps="neon"
2417 vfp_deps_any="aarch64 arm"
2418 vfpv3_deps="vfp"
2419 setend_deps="arm"
2420
2421 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2422
2423 altivec_deps="ppc"
2424 dcbzl_deps="ppc"
2425 ldbrx_deps="ppc"
2426 ppc4xx_deps="ppc"
2427 vsx_deps="altivec"
2428 power8_deps="vsx"
2429
2430 loongson2_deps="mips"
2431 loongson3_deps="mips"
2432 mips32r2_deps="mips"
2433 mips32r5_deps="mips"
2434 mips32r6_deps="mips"
2435 mips64r2_deps="mips"
2436 mips64r6_deps="mips"
2437 mipsfpu_deps="mips"
2438 mipsdsp_deps="mips"
2439 mipsdspr2_deps="mips"
2440 mmi_deps="mips"
2441 msa_deps="mipsfpu"
2442
2443 cpunop_deps="i686"
2444 x86_64_select="i686"
2445 x86_64_suggest="fast_cmov"
2446
2447 amd3dnow_deps="mmx"
2448 amd3dnowext_deps="amd3dnow"
2449 i686_deps="x86"
2450 mmx_deps="x86"
2451 mmxext_deps="mmx"
2452 sse_deps="mmxext"
2453 sse2_deps="sse"
2454 sse3_deps="sse2"
2455 ssse3_deps="sse3"
2456 sse4_deps="ssse3"
2457 sse42_deps="sse4"
2458 aesni_deps="sse42"
2459 avx_deps="sse42"
2460 xop_deps="avx"
2461 fma3_deps="avx"
2462 fma4_deps="avx"
2463 avx2_deps="avx"
2464 avx512_deps="avx2"
2465
2466 mmx_external_deps="x86asm"
2467 mmx_inline_deps="inline_asm x86"
2468 mmx_suggest="mmx_external mmx_inline"
2469
2470 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2471     eval dep=\$${ext}_deps
2472     eval ${ext}_external_deps='"${dep}_external"'
2473     eval ${ext}_inline_deps='"${dep}_inline"'
2474     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2475 done
2476
2477 aligned_stack_if_any="aarch64 ppc x86"
2478 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2479 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2480 fast_unaligned_if_any="aarch64 ppc x86"
2481 simd_align_16_if_any="altivec neon sse"
2482 simd_align_32_if_any="avx"
2483 simd_align_64_if_any="avx512"
2484
2485 # system capabilities
2486 linux_perf_deps="linux_perf_event_h"
2487 symver_if_any="symver_asm_label symver_gnu_asm"
2488 valgrind_backtrace_conflict="optimizations"
2489 valgrind_backtrace_deps="valgrind_valgrind_h"
2490
2491 # threading support
2492 atomics_gcc_if="sync_val_compare_and_swap"
2493 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2494 atomics_win32_if="MemoryBarrier"
2495 atomics_native_if_any="$ATOMICS_LIST"
2496 w32threads_deps="atomics_native"
2497 threads_if_any="$THREADS_LIST"
2498
2499 # subsystems
2500 cbs_h264_select="cbs golomb"
2501 cbs_h265_select="cbs golomb"
2502 cbs_mpeg2_select="cbs"
2503 dct_select="rdft"
2504 dirac_parse_select="golomb"
2505 error_resilience_select="me_cmp"
2506 faandct_deps="faan"
2507 faandct_select="fdctdsp"
2508 faanidct_deps="faan"
2509 faanidct_select="idctdsp"
2510 h264dsp_select="startcode"
2511 hevcparse_select="golomb"
2512 frame_thread_encoder_deps="encoders threads"
2513 intrax8_select="blockdsp idctdsp"
2514 mdct_select="fft"
2515 mdct15_select="fft"
2516 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2517 mpeg_er_select="error_resilience"
2518 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2519 mpegaudiodsp_select="dct"
2520 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2521 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2522 vc1dsp_select="h264chroma qpeldsp startcode"
2523 rdft_select="fft"
2524
2525 # decoders / encoders
2526 aac_decoder_select="adts_header mdct15 mdct sinewin"
2527 aac_fixed_decoder_select="adts_header mdct sinewin"
2528 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2529 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2530 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2531 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2532 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2533 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2534 adpcm_g722_decoder_select="g722dsp"
2535 adpcm_g722_encoder_select="g722dsp"
2536 aic_decoder_select="golomb idctdsp"
2537 alac_encoder_select="lpc"
2538 als_decoder_select="bswapdsp"
2539 amrnb_decoder_select="lsp"
2540 amrwb_decoder_select="lsp"
2541 amv_decoder_select="sp5x_decoder exif"
2542 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2543 ape_decoder_select="bswapdsp llauddsp"
2544 apng_decoder_deps="zlib"
2545 apng_encoder_deps="zlib"
2546 apng_encoder_select="llvidencdsp"
2547 aptx_decoder_select="audio_frame_queue"
2548 aptx_encoder_select="audio_frame_queue"
2549 aptx_hd_decoder_select="audio_frame_queue"
2550 aptx_hd_encoder_select="audio_frame_queue"
2551 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2552 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2553 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2554 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2555 atrac1_decoder_select="mdct sinewin"
2556 atrac3_decoder_select="mdct"
2557 atrac3p_decoder_select="mdct sinewin"
2558 avrn_decoder_select="exif jpegtables"
2559 bink_decoder_select="blockdsp hpeldsp"
2560 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2561 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2562 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2563 clearvideo_decoder_select="idctdsp"
2564 cllc_decoder_select="bswapdsp"
2565 comfortnoise_encoder_select="lpc"
2566 cook_decoder_select="audiodsp mdct sinewin"
2567 cscd_decoder_select="lzo"
2568 cscd_decoder_suggest="zlib"
2569 dca_decoder_select="mdct"
2570 dds_decoder_select="texturedsp"
2571 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2572 dnxhd_decoder_select="blockdsp idctdsp"
2573 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2574 dolby_e_decoder_select="mdct"
2575 dvvideo_decoder_select="dvprofile idctdsp"
2576 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2577 dxa_decoder_deps="zlib"
2578 dxv_decoder_select="lzf texturedsp"
2579 eac3_decoder_select="ac3_decoder"
2580 eac3_encoder_select="ac3_encoder"
2581 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2582 eatgq_decoder_select="aandcttables"
2583 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2584 exr_decoder_deps="zlib"
2585 ffv1_decoder_select="rangecoder"
2586 ffv1_encoder_select="rangecoder"
2587 ffvhuff_decoder_select="huffyuv_decoder"
2588 ffvhuff_encoder_select="huffyuv_encoder"
2589 fic_decoder_select="golomb"
2590 flac_decoder_select="flacdsp"
2591 flac_encoder_select="bswapdsp flacdsp lpc"
2592 flashsv2_decoder_deps="zlib"
2593 flashsv2_encoder_deps="zlib"
2594 flashsv_decoder_deps="zlib"
2595 flashsv_encoder_deps="zlib"
2596 flv_decoder_select="h263_decoder"
2597 flv_encoder_select="h263_encoder"
2598 fourxm_decoder_select="blockdsp bswapdsp"
2599 fraps_decoder_select="bswapdsp huffman"
2600 g2m_decoder_deps="zlib"
2601 g2m_decoder_select="blockdsp idctdsp jpegtables"
2602 g729_decoder_select="audiodsp"
2603 h261_decoder_select="mpegvideo"
2604 h261_encoder_select="aandcttables mpegvideoenc"
2605 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2606 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2607 h263i_decoder_select="h263_decoder"
2608 h263p_decoder_select="h263_decoder"
2609 h263p_encoder_select="h263_encoder"
2610 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2611 h264_decoder_suggest="error_resilience"
2612 hap_decoder_select="snappy texturedsp"
2613 hap_encoder_deps="libsnappy"
2614 hap_encoder_select="texturedspenc"
2615 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2616 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2617 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2618 iac_decoder_select="imc_decoder"
2619 imc_decoder_select="bswapdsp fft mdct sinewin"
2620 indeo3_decoder_select="hpeldsp"
2621 indeo4_decoder_select="ividsp"
2622 indeo5_decoder_select="ividsp"
2623 interplay_video_decoder_select="hpeldsp"
2624 jpegls_decoder_select="mjpeg_decoder"
2625 jv_decoder_select="blockdsp"
2626 lagarith_decoder_select="llviddsp"
2627 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2628 magicyuv_decoder_select="llviddsp"
2629 magicyuv_encoder_select="llvidencdsp"
2630 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2631 metasound_decoder_select="lsp mdct sinewin"
2632 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2633 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2634 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2635 mjpegb_decoder_select="mjpeg_decoder"
2636 mlp_decoder_select="mlp_parser"
2637 mlp_encoder_select="lpc"
2638 motionpixels_decoder_select="bswapdsp"
2639 mp1_decoder_select="mpegaudio"
2640 mp1float_decoder_select="mpegaudio"
2641 mp2_decoder_select="mpegaudio"
2642 mp2float_decoder_select="mpegaudio"
2643 mp3_decoder_select="mpegaudio"
2644 mp3adu_decoder_select="mpegaudio"
2645 mp3adufloat_decoder_select="mpegaudio"
2646 mp3float_decoder_select="mpegaudio"
2647 mp3on4_decoder_select="mpegaudio"
2648 mp3on4float_decoder_select="mpegaudio"
2649 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2650 mpc8_decoder_select="mpegaudiodsp"
2651 mpegvideo_decoder_select="mpegvideo"
2652 mpeg1video_decoder_select="mpegvideo"
2653 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2654 mpeg2video_decoder_select="mpegvideo"
2655 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2656 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2657 mpeg4_encoder_select="h263_encoder"
2658 msa1_decoder_select="mss34dsp"
2659 mscc_decoder_deps="zlib"
2660 msmpeg4v1_decoder_select="h263_decoder"
2661 msmpeg4v2_decoder_select="h263_decoder"
2662 msmpeg4v2_encoder_select="h263_encoder"
2663 msmpeg4v3_decoder_select="h263_decoder"
2664 msmpeg4v3_encoder_select="h263_encoder"
2665 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2666 mts2_decoder_select="mss34dsp"
2667 mxpeg_decoder_select="mjpeg_decoder"
2668 nellymoser_decoder_select="mdct sinewin"
2669 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2670 nuv_decoder_select="idctdsp lzo"
2671 on2avc_decoder_select="mdct"
2672 opus_decoder_deps="swresample"
2673 opus_decoder_select="mdct15"
2674 opus_encoder_select="audio_frame_queue mdct15"
2675 png_decoder_deps="zlib"
2676 png_encoder_deps="zlib"
2677 png_encoder_select="llvidencdsp"
2678 prores_decoder_select="blockdsp idctdsp"
2679 prores_encoder_select="fdctdsp"
2680 qcelp_decoder_select="lsp"
2681 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2682 ra_144_decoder_select="audiodsp"
2683 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2684 ralf_decoder_select="golomb"
2685 rawvideo_decoder_select="bswapdsp"
2686 rscc_decoder_deps="zlib"
2687 rtjpeg_decoder_select="me_cmp"
2688 rv10_decoder_select="h263_decoder"
2689 rv10_encoder_select="h263_encoder"
2690 rv20_decoder_select="h263_decoder"
2691 rv20_encoder_select="h263_encoder"
2692 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2693 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2694 screenpresso_decoder_deps="zlib"
2695 shorten_decoder_select="bswapdsp"
2696 sipr_decoder_select="lsp"
2697 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2698 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2699 sonic_decoder_select="golomb rangecoder"
2700 sonic_encoder_select="golomb rangecoder"
2701 sonic_ls_encoder_select="golomb rangecoder"
2702 sp5x_decoder_select="mjpeg_decoder"
2703 srgc_decoder_deps="zlib"
2704 svq1_decoder_select="hpeldsp"
2705 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2706 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2707 svq3_decoder_suggest="zlib"
2708 tak_decoder_select="audiodsp"
2709 tdsc_decoder_deps="zlib"
2710 tdsc_decoder_select="mjpeg_decoder"
2711 theora_decoder_select="vp3_decoder"
2712 thp_decoder_select="mjpeg_decoder"
2713 tiff_decoder_suggest="zlib lzma"
2714 tiff_encoder_suggest="zlib"
2715 truehd_decoder_select="mlp_parser"
2716 truehd_encoder_select="lpc"
2717 truemotion2_decoder_select="bswapdsp"
2718 truespeech_decoder_select="bswapdsp"
2719 tscc_decoder_deps="zlib"
2720 twinvq_decoder_select="mdct lsp sinewin"
2721 txd_decoder_select="texturedsp"
2722 utvideo_decoder_select="bswapdsp llviddsp"
2723 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2724 vble_decoder_select="llviddsp"
2725 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2726 vc1image_decoder_select="vc1_decoder"
2727 vorbis_decoder_select="mdct"
2728 vorbis_encoder_select="audio_frame_queue mdct"
2729 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2730 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2731 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2732 vp6a_decoder_select="vp6_decoder"
2733 vp6f_decoder_select="vp6_decoder"
2734 vp7_decoder_select="h264pred videodsp vp8dsp"
2735 vp8_decoder_select="h264pred videodsp vp8dsp"
2736 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2737 webp_decoder_select="vp8_decoder exif"
2738 wmalossless_decoder_select="llauddsp"
2739 wmapro_decoder_select="mdct sinewin wma_freqs"
2740 wmav1_decoder_select="mdct sinewin wma_freqs"
2741 wmav1_encoder_select="mdct sinewin wma_freqs"
2742 wmav2_decoder_select="mdct sinewin wma_freqs"
2743 wmav2_encoder_select="mdct sinewin wma_freqs"
2744 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2745 wmv1_decoder_select="h263_decoder"
2746 wmv1_encoder_select="h263_encoder"
2747 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2748 wmv2_encoder_select="h263_encoder wmv2dsp"
2749 wmv3_decoder_select="vc1_decoder"
2750 wmv3image_decoder_select="wmv3_decoder"
2751 xma1_decoder_select="wmapro_decoder"
2752 xma2_decoder_select="wmapro_decoder"
2753 zerocodec_decoder_deps="zlib"
2754 zlib_decoder_deps="zlib"
2755 zlib_encoder_deps="zlib"
2756 zmbv_decoder_deps="zlib"
2757 zmbv_encoder_deps="zlib"
2758
2759 # hardware accelerators
2760 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2761 cuda_deps="ffnvcodec"
2762 cuvid_deps="ffnvcodec"
2763 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2764 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2765 ffnvcodec_deps_any="libdl LoadLibrary"
2766 nvdec_deps="ffnvcodec"
2767 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2768 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2769 xvmc_deps="X11_extensions_XvMClib_h"
2770
2771 h263_vaapi_hwaccel_deps="vaapi"
2772 h263_vaapi_hwaccel_select="h263_decoder"
2773 h263_videotoolbox_hwaccel_deps="videotoolbox"
2774 h263_videotoolbox_hwaccel_select="h263_decoder"
2775 h264_d3d11va_hwaccel_deps="d3d11va"
2776 h264_d3d11va_hwaccel_select="h264_decoder"
2777 h264_d3d11va2_hwaccel_deps="d3d11va"
2778 h264_d3d11va2_hwaccel_select="h264_decoder"
2779 h264_dxva2_hwaccel_deps="dxva2"
2780 h264_dxva2_hwaccel_select="h264_decoder"
2781 h264_nvdec_hwaccel_deps="nvdec"
2782 h264_nvdec_hwaccel_select="h264_decoder"
2783 h264_vaapi_hwaccel_deps="vaapi"
2784 h264_vaapi_hwaccel_select="h264_decoder"
2785 h264_vdpau_hwaccel_deps="vdpau"
2786 h264_vdpau_hwaccel_select="h264_decoder"
2787 h264_videotoolbox_hwaccel_deps="videotoolbox"
2788 h264_videotoolbox_hwaccel_select="h264_decoder"
2789 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2790 hevc_d3d11va_hwaccel_select="hevc_decoder"
2791 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2792 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2793 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2794 hevc_dxva2_hwaccel_select="hevc_decoder"
2795 hevc_nvdec_hwaccel_deps="nvdec"
2796 hevc_nvdec_hwaccel_select="hevc_decoder"
2797 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2798 hevc_vaapi_hwaccel_select="hevc_decoder"
2799 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2800 hevc_vdpau_hwaccel_select="hevc_decoder"
2801 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2802 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2803 mjpeg_nvdec_hwaccel_deps="nvdec"
2804 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2805 mjpeg_vaapi_hwaccel_deps="vaapi"
2806 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2807 mpeg_xvmc_hwaccel_deps="xvmc"
2808 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2809 mpeg1_nvdec_hwaccel_deps="nvdec"
2810 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2811 mpeg1_vdpau_hwaccel_deps="vdpau"
2812 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2813 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2814 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2815 mpeg1_xvmc_hwaccel_deps="xvmc"
2816 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2817 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2818 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2819 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2820 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2821 mpeg2_dxva2_hwaccel_deps="dxva2"
2822 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2823 mpeg2_nvdec_hwaccel_deps="nvdec"
2824 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2825 mpeg2_vaapi_hwaccel_deps="vaapi"
2826 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2827 mpeg2_vdpau_hwaccel_deps="vdpau"
2828 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2829 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2830 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2831 mpeg2_xvmc_hwaccel_deps="xvmc"
2832 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2833 mpeg4_nvdec_hwaccel_deps="nvdec"
2834 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2835 mpeg4_vaapi_hwaccel_deps="vaapi"
2836 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2837 mpeg4_vdpau_hwaccel_deps="vdpau"
2838 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2839 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2840 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2841 vc1_d3d11va_hwaccel_deps="d3d11va"
2842 vc1_d3d11va_hwaccel_select="vc1_decoder"
2843 vc1_d3d11va2_hwaccel_deps="d3d11va"
2844 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2845 vc1_dxva2_hwaccel_deps="dxva2"
2846 vc1_dxva2_hwaccel_select="vc1_decoder"
2847 vc1_nvdec_hwaccel_deps="nvdec"
2848 vc1_nvdec_hwaccel_select="vc1_decoder"
2849 vc1_vaapi_hwaccel_deps="vaapi"
2850 vc1_vaapi_hwaccel_select="vc1_decoder"
2851 vc1_vdpau_hwaccel_deps="vdpau"
2852 vc1_vdpau_hwaccel_select="vc1_decoder"
2853 vp8_nvdec_hwaccel_deps="nvdec"
2854 vp8_nvdec_hwaccel_select="vp8_decoder"
2855 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2856 vp8_vaapi_hwaccel_select="vp8_decoder"
2857 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2858 vp9_d3d11va_hwaccel_select="vp9_decoder"
2859 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2860 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2861 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2862 vp9_dxva2_hwaccel_select="vp9_decoder"
2863 vp9_nvdec_hwaccel_deps="nvdec"
2864 vp9_nvdec_hwaccel_select="vp9_decoder"
2865 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2866 vp9_vaapi_hwaccel_select="vp9_decoder"
2867 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2868 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2869 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2870 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2871 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2872 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2873
2874 # hardware-accelerated codecs
2875 omx_deps="libdl pthreads"
2876 omx_rpi_select="omx"
2877 qsv_deps="libmfx"
2878 qsvdec_select="qsv"
2879 qsvenc_select="qsv"
2880 qsvvpp_select="qsv"
2881 vaapi_encode_deps="vaapi"
2882 v4l2_m2m_deps_any="linux_videodev2_h"
2883
2884 hwupload_cuda_filter_deps="ffnvcodec"
2885 scale_npp_filter_deps="ffnvcodec libnpp"
2886 scale_cuda_filter_deps="cuda_sdk"
2887 thumbnail_cuda_filter_deps="cuda_sdk"
2888
2889 amf_deps_any="libdl LoadLibrary"
2890 nvenc_deps="ffnvcodec"
2891 nvenc_deps_any="libdl LoadLibrary"
2892 nvenc_encoder_deps="nvenc"
2893
2894 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2895 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2896 h264_amf_encoder_deps="amf"
2897 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2898 h264_cuvid_decoder_deps="cuvid"
2899 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2900 h264_mediacodec_decoder_deps="mediacodec"
2901 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2902 h264_mmal_decoder_deps="mmal"
2903 h264_nvenc_encoder_deps="nvenc"
2904 h264_omx_encoder_deps="omx"
2905 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2906 h264_qsv_encoder_select="qsvenc"
2907 h264_rkmpp_decoder_deps="rkmpp"
2908 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2909 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2910 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2911 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2912 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2913 hevc_amf_encoder_deps="amf"
2914 hevc_cuvid_decoder_deps="cuvid"
2915 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2916 hevc_mediacodec_decoder_deps="mediacodec"
2917 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2918 hevc_nvenc_encoder_deps="nvenc"
2919 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2920 hevc_qsv_encoder_select="hevcparse qsvenc"
2921 hevc_rkmpp_decoder_deps="rkmpp"
2922 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2923 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2924 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2925 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2926 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2927 mjpeg_cuvid_decoder_deps="cuvid"
2928 mjpeg_qsv_encoder_deps="libmfx"
2929 mjpeg_qsv_encoder_select="qsvenc"
2930 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2931 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2932 mpeg1_cuvid_decoder_deps="cuvid"
2933 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2934 mpeg2_crystalhd_decoder_select="crystalhd"
2935 mpeg2_cuvid_decoder_deps="cuvid"
2936 mpeg2_mmal_decoder_deps="mmal"
2937 mpeg2_mediacodec_decoder_deps="mediacodec"
2938 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2939 mpeg2_qsv_encoder_select="qsvenc"
2940 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2941 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2942 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2943 mpeg4_crystalhd_decoder_select="crystalhd"
2944 mpeg4_cuvid_decoder_deps="cuvid"
2945 mpeg4_mediacodec_decoder_deps="mediacodec"
2946 mpeg4_mmal_decoder_deps="mmal"
2947 mpeg4_omx_encoder_deps="omx"
2948 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2949 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2950 msmpeg4_crystalhd_decoder_select="crystalhd"
2951 nvenc_h264_encoder_select="h264_nvenc_encoder"
2952 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2953 vc1_crystalhd_decoder_select="crystalhd"
2954 vc1_cuvid_decoder_deps="cuvid"
2955 vc1_mmal_decoder_deps="mmal"
2956 vc1_qsv_decoder_select="qsvdec vc1_parser"
2957 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2958 vp8_cuvid_decoder_deps="cuvid"
2959 vp8_mediacodec_decoder_deps="mediacodec"
2960 vp8_qsv_decoder_select="qsvdec vp8_parser"
2961 vp8_rkmpp_decoder_deps="rkmpp"
2962 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2963 vp8_vaapi_encoder_select="vaapi_encode"
2964 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2965 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2966 vp9_cuvid_decoder_deps="cuvid"
2967 vp9_mediacodec_decoder_deps="mediacodec"
2968 vp9_rkmpp_decoder_deps="rkmpp"
2969 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2970 vp9_vaapi_encoder_select="vaapi_encode"
2971 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2972 wmv3_crystalhd_decoder_select="crystalhd"
2973
2974 # parsers
2975 aac_parser_select="adts_header"
2976 h264_parser_select="golomb h264dsp h264parse"
2977 hevc_parser_select="hevcparse"
2978 mpegaudio_parser_select="mpegaudioheader"
2979 mpegvideo_parser_select="mpegvideo"
2980 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2981 vc1_parser_select="vc1dsp"
2982
2983 # bitstream_filters
2984 aac_adtstoasc_bsf_select="adts_header"
2985 filter_units_bsf_select="cbs"
2986 h264_metadata_bsf_deps="const_nan"
2987 h264_metadata_bsf_select="cbs_h264"
2988 h264_redundant_pps_bsf_select="cbs_h264"
2989 hevc_metadata_bsf_select="cbs_h265"
2990 mjpeg2jpeg_bsf_select="jpegtables"
2991 mpeg2_metadata_bsf_select="cbs_mpeg2"
2992 trace_headers_bsf_select="cbs"
2993
2994 # external libraries
2995 aac_at_decoder_deps="audiotoolbox"
2996 aac_at_decoder_select="aac_adtstoasc_bsf"
2997 ac3_at_decoder_deps="audiotoolbox"
2998 ac3_at_decoder_select="ac3_parser"
2999 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3000 alac_at_decoder_deps="audiotoolbox"
3001 amr_nb_at_decoder_deps="audiotoolbox"
3002 avisynth_deps_any="libdl LoadLibrary"
3003 avisynth_demuxer_deps="avisynth"
3004 avisynth_demuxer_select="riffdec"
3005 eac3_at_decoder_deps="audiotoolbox"
3006 eac3_at_decoder_select="ac3_parser"
3007 gsm_ms_at_decoder_deps="audiotoolbox"
3008 ilbc_at_decoder_deps="audiotoolbox"
3009 mp1_at_decoder_deps="audiotoolbox"
3010 mp2_at_decoder_deps="audiotoolbox"
3011 mp3_at_decoder_deps="audiotoolbox"
3012 mp1_at_decoder_select="mpegaudioheader"
3013 mp2_at_decoder_select="mpegaudioheader"
3014 mp3_at_decoder_select="mpegaudioheader"
3015 pcm_alaw_at_decoder_deps="audiotoolbox"
3016 pcm_mulaw_at_decoder_deps="audiotoolbox"
3017 qdmc_at_decoder_deps="audiotoolbox"
3018 qdm2_at_decoder_deps="audiotoolbox"
3019 aac_at_encoder_deps="audiotoolbox"
3020 aac_at_encoder_select="audio_frame_queue"
3021 alac_at_encoder_deps="audiotoolbox"
3022 alac_at_encoder_select="audio_frame_queue"
3023 ilbc_at_encoder_deps="audiotoolbox"
3024 ilbc_at_encoder_select="audio_frame_queue"
3025 pcm_alaw_at_encoder_deps="audiotoolbox"
3026 pcm_alaw_at_encoder_select="audio_frame_queue"
3027 pcm_mulaw_at_encoder_deps="audiotoolbox"
3028 pcm_mulaw_at_encoder_select="audio_frame_queue"
3029 chromaprint_muxer_deps="chromaprint"
3030 h264_videotoolbox_encoder_deps="pthreads"
3031 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3032 hevc_videotoolbox_encoder_deps="pthreads"
3033 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3034 libaom_av1_decoder_deps="libaom"
3035 libaom_av1_encoder_deps="libaom"
3036 libcelt_decoder_deps="libcelt"
3037 libcodec2_decoder_deps="libcodec2"
3038 libcodec2_encoder_deps="libcodec2"
3039 libfdk_aac_decoder_deps="libfdk_aac"
3040 libfdk_aac_encoder_deps="libfdk_aac"
3041 libfdk_aac_encoder_select="audio_frame_queue"
3042 libgme_demuxer_deps="libgme"
3043 libgsm_decoder_deps="libgsm"
3044 libgsm_encoder_deps="libgsm"
3045 libgsm_ms_decoder_deps="libgsm"
3046 libgsm_ms_encoder_deps="libgsm"
3047 libilbc_decoder_deps="libilbc"
3048 libilbc_encoder_deps="libilbc"
3049 libkvazaar_encoder_deps="libkvazaar"
3050 libmodplug_demuxer_deps="libmodplug"
3051 libmp3lame_encoder_deps="libmp3lame"
3052 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3053 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3054 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3055 libopencore_amrnb_encoder_select="audio_frame_queue"
3056 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3057 libopenh264_decoder_deps="libopenh264"
3058 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3059 libopenh264_encoder_deps="libopenh264"
3060 libopenjpeg_decoder_deps="libopenjpeg"
3061 libopenjpeg_encoder_deps="libopenjpeg"
3062 libopenmpt_demuxer_deps="libopenmpt"
3063 libopus_decoder_deps="libopus"
3064 libopus_encoder_deps="libopus"
3065 libopus_encoder_select="audio_frame_queue"
3066 librsvg_decoder_deps="librsvg"
3067 libshine_encoder_deps="libshine"
3068 libshine_encoder_select="audio_frame_queue"
3069 libspeex_decoder_deps="libspeex"
3070 libspeex_encoder_deps="libspeex"
3071 libspeex_encoder_select="audio_frame_queue"
3072 libtheora_encoder_deps="libtheora"
3073 libtwolame_encoder_deps="libtwolame"
3074 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3075 libvorbis_decoder_deps="libvorbis"
3076 libvorbis_encoder_deps="libvorbis libvorbisenc"
3077 libvorbis_encoder_select="audio_frame_queue"
3078 libvpx_vp8_decoder_deps="libvpx"
3079 libvpx_vp8_encoder_deps="libvpx"
3080 libvpx_vp9_decoder_deps="libvpx"
3081 libvpx_vp9_encoder_deps="libvpx"
3082 libwavpack_encoder_deps="libwavpack"
3083 libwavpack_encoder_select="audio_frame_queue"
3084 libwebp_encoder_deps="libwebp"
3085 libwebp_anim_encoder_deps="libwebp"
3086 libx262_encoder_deps="libx262"
3087 libx264_encoder_deps="libx264"
3088 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3089 libx264rgb_encoder_select="libx264_encoder"
3090 libx265_encoder_deps="libx265"
3091 libxavs_encoder_deps="libxavs"
3092 libxvid_encoder_deps="libxvid"
3093 libzvbi_teletext_decoder_deps="libzvbi"
3094 videotoolbox_suggest="coreservices"
3095 videotoolbox_deps="corefoundation coremedia corevideo"
3096 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3097
3098 # demuxers / muxers
3099 ac3_demuxer_select="ac3_parser"
3100 aiff_muxer_select="iso_media"
3101 asf_demuxer_select="riffdec"
3102 asf_o_demuxer_select="riffdec"
3103 asf_muxer_select="riffenc"
3104 asf_stream_muxer_select="asf_muxer"
3105 avi_demuxer_select="iso_media riffdec exif"
3106 avi_muxer_select="riffenc"
3107 caf_demuxer_select="iso_media riffdec"
3108 caf_muxer_select="iso_media"
3109 dash_muxer_select="mp4_muxer"
3110 dash_demuxer_deps="libxml2"
3111 dirac_demuxer_select="dirac_parser"
3112 dts_demuxer_select="dca_parser"
3113 dtshd_demuxer_select="dca_parser"
3114 dv_demuxer_select="dvprofile"
3115 dv_muxer_select="dvprofile"
3116 dxa_demuxer_select="riffdec"
3117 eac3_demuxer_select="ac3_parser"
3118 f4v_muxer_select="mov_muxer"
3119 fifo_muxer_deps="threads"
3120 flac_demuxer_select="flac_parser"
3121 hds_muxer_select="flv_muxer"
3122 hls_muxer_select="mpegts_muxer"
3123 hls_muxer_suggest="gcrypt openssl mbedtls"
3124 image2_alias_pix_demuxer_select="image2_demuxer"
3125 image2_brender_pix_demuxer_select="image2_demuxer"
3126 ipod_muxer_select="mov_muxer"
3127 ismv_muxer_select="mov_muxer"
3128 matroska_audio_muxer_select="matroska_muxer"
3129 matroska_demuxer_select="iso_media riffdec"
3130 matroska_demuxer_suggest="bzlib lzo zlib"
3131 matroska_muxer_select="iso_media riffenc"
3132 mmf_muxer_select="riffenc"
3133 mov_demuxer_select="iso_media riffdec"
3134 mov_demuxer_suggest="zlib"
3135 mov_muxer_select="iso_media riffenc rtpenc_chain"
3136 mp3_demuxer_select="mpegaudio_parser"
3137 mp3_muxer_select="mpegaudioheader"
3138 mp4_muxer_select="mov_muxer"
3139 mpegts_demuxer_select="iso_media"
3140 mpegts_muxer_select="adts_muxer latm_muxer"
3141 mpegtsraw_demuxer_select="mpegts_demuxer"
3142 mxf_d10_muxer_select="mxf_muxer"
3143 mxf_opatom_muxer_select="mxf_muxer"
3144 nut_muxer_select="riffenc"
3145 nuv_demuxer_select="riffdec"
3146 oga_muxer_select="ogg_muxer"
3147 ogg_demuxer_select="dirac_parse"
3148 ogv_muxer_select="ogg_muxer"
3149 opus_muxer_select="ogg_muxer"
3150 psp_muxer_select="mov_muxer"
3151 rtp_demuxer_select="sdp_demuxer"
3152 rtp_muxer_select="golomb"
3153 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3154 rtsp_demuxer_select="http_protocol rtpdec"
3155 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3156 sap_demuxer_select="sdp_demuxer"
3157 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3158 sdp_demuxer_select="rtpdec"
3159 smoothstreaming_muxer_select="ismv_muxer"
3160 spdif_demuxer_select="adts_header"
3161 spdif_muxer_select="adts_header"
3162 spx_muxer_select="ogg_muxer"
3163 swf_demuxer_suggest="zlib"
3164 tak_demuxer_select="tak_parser"
3165 tg2_muxer_select="mov_muxer"
3166 tgp_muxer_select="mov_muxer"
3167 vobsub_demuxer_select="mpegps_demuxer"
3168 w64_demuxer_select="wav_demuxer"
3169 w64_muxer_select="wav_muxer"
3170 wav_demuxer_select="riffdec"
3171 wav_muxer_select="riffenc"
3172 webm_muxer_select="iso_media riffenc"
3173 webm_dash_manifest_demuxer_select="matroska_demuxer"
3174 wtv_demuxer_select="mpegts_demuxer riffdec"
3175 wtv_muxer_select="mpegts_muxer riffenc"
3176 xmv_demuxer_select="riffdec"
3177 xwma_demuxer_select="riffdec"
3178
3179 # indevs / outdevs
3180 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3181 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3182 alsa_indev_deps="alsa"
3183 alsa_outdev_deps="alsa"
3184 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3185 avfoundation_indev_suggest="coregraphics applicationservices"
3186 avfoundation_indev_extralibs="-framework Foundation"
3187 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3188 caca_outdev_deps="libcaca"
3189 decklink_deps_any="libdl LoadLibrary"
3190 decklink_indev_deps="decklink threads"
3191 decklink_indev_extralibs="-lstdc++"
3192 decklink_outdev_deps="decklink threads"
3193 decklink_outdev_extralibs="-lstdc++"
3194 libndi_newtek_indev_deps="libndi_newtek"
3195 libndi_newtek_indev_extralibs="-lndi"
3196 libndi_newtek_outdev_deps="libndi_newtek"
3197 libndi_newtek_outdev_extralibs="-lndi"
3198 dshow_indev_deps="IBaseFilter"
3199 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3200 fbdev_indev_deps="linux_fb_h"
3201 fbdev_outdev_deps="linux_fb_h"
3202 gdigrab_indev_deps="CreateDIBSection"
3203 gdigrab_indev_extralibs="-lgdi32"
3204 gdigrab_indev_select="bmp_decoder"
3205 iec61883_indev_deps="libiec61883"
3206 jack_indev_deps="libjack"
3207 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3208 kmsgrab_indev_deps="libdrm"
3209 lavfi_indev_deps="avfilter"
3210 libcdio_indev_deps="libcdio"
3211 libdc1394_indev_deps="libdc1394"
3212 openal_indev_deps="openal"
3213 opengl_outdev_deps="opengl"
3214 oss_indev_deps_any="sys_soundcard_h"
3215 oss_outdev_deps_any="sys_soundcard_h"
3216 pulse_indev_deps="libpulse"
3217 pulse_outdev_deps="libpulse"
3218 sdl2_outdev_deps="sdl2"
3219 sndio_indev_deps="sndio"
3220 sndio_outdev_deps="sndio"
3221 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3222 v4l2_indev_suggest="libv4l2"
3223 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3224 v4l2_outdev_suggest="libv4l2"
3225 vfwcap_indev_deps="vfw32 vfwcap_defines"
3226 xcbgrab_indev_deps="libxcb"
3227 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3228 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3229 xv_outdev_extralibs="-lXv -lX11 -lXext"
3230
3231 # protocols
3232 async_protocol_deps="threads"
3233 bluray_protocol_deps="libbluray"
3234 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3235 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3236 ffrtmpcrypt_protocol_select="tcp_protocol"
3237 ffrtmphttp_protocol_conflict="librtmp_protocol"
3238 ffrtmphttp_protocol_select="http_protocol"
3239 ftp_protocol_select="tcp_protocol"
3240 gopher_protocol_select="network"
3241 http_protocol_select="tcp_protocol"
3242 http_protocol_suggest="zlib"
3243 httpproxy_protocol_select="tcp_protocol"
3244 httpproxy_protocol_suggest="zlib"
3245 https_protocol_select="tls_protocol"
3246 https_protocol_suggest="zlib"
3247 icecast_protocol_select="http_protocol"
3248 librtmp_protocol_deps="librtmp"
3249 librtmpe_protocol_deps="librtmp"
3250 librtmps_protocol_deps="librtmp"
3251 librtmpt_protocol_deps="librtmp"
3252 librtmpte_protocol_deps="librtmp"
3253 libsmbclient_protocol_deps="libsmbclient gplv3"
3254 libssh_protocol_deps="libssh"
3255 libtls_conflict="openssl gnutls mbedtls"
3256 mmsh_protocol_select="http_protocol"
3257 mmst_protocol_select="network"
3258 libsrt_protocol_deps="libsrt"
3259 libsrt_protocol_select="network"
3260 rtmp_protocol_conflict="librtmp_protocol"
3261 rtmp_protocol_select="tcp_protocol"
3262 rtmp_protocol_suggest="zlib"
3263 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3264 rtmpe_protocol_suggest="zlib"
3265 rtmps_protocol_conflict="librtmp_protocol"
3266 rtmps_protocol_select="tls_protocol"
3267 rtmps_protocol_suggest="zlib"
3268 rtmpt_protocol_select="ffrtmphttp_protocol"
3269 rtmpt_protocol_suggest="zlib"
3270 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3271 rtmpte_protocol_suggest="zlib"
3272 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3273 rtmpts_protocol_suggest="zlib"
3274 rtp_protocol_select="udp_protocol"
3275 schannel_conflict="openssl gnutls libtls mbedtls"
3276 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3277 sctp_protocol_select="network"
3278 securetransport_conflict="openssl gnutls libtls mbedtls"
3279 srtp_protocol_select="rtp_protocol srtp"
3280 tcp_protocol_select="network"
3281 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3282 tls_protocol_select="tcp_protocol"
3283 udp_protocol_select="network"
3284 udplite_protocol_select="network"
3285 unix_protocol_deps="sys_un_h"
3286 unix_protocol_select="network"
3287
3288 # filters
3289 afftfilt_filter_deps="avcodec"
3290 afftfilt_filter_select="fft"
3291 afir_filter_deps="avcodec"
3292 afir_filter_select="fft"
3293 amovie_filter_deps="avcodec avformat"
3294 aresample_filter_deps="swresample"
3295 ass_filter_deps="libass"
3296 atempo_filter_deps="avcodec"
3297 atempo_filter_select="rdft"
3298 avgblur_opencl_filter_deps="opencl"
3299 azmq_filter_deps="libzmq"
3300 blackframe_filter_deps="gpl"
3301 boxblur_filter_deps="gpl"
3302 bs2b_filter_deps="libbs2b"
3303 colormatrix_filter_deps="gpl"
3304 convolution_opencl_filter_deps="opencl"
3305 convolve_filter_deps="avcodec"
3306 convolve_filter_select="fft"
3307 coreimage_filter_deps="coreimage appkit"
3308 coreimage_filter_extralibs="-framework OpenGL"
3309 coreimagesrc_filter_deps="coreimage appkit"
3310 coreimagesrc_filter_extralibs="-framework OpenGL"
3311 cover_rect_filter_deps="avcodec avformat gpl"
3312 cropdetect_filter_deps="gpl"
3313 deconvolve_filter_deps="avcodec"
3314 deconvolve_filter_select="fft"
3315 deinterlace_qsv_filter_deps="libmfx"
3316 deinterlace_vaapi_filter_deps="vaapi"
3317 delogo_filter_deps="gpl"
3318 denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3319 deshake_filter_select="pixelutils"
3320 drawtext_filter_deps="libfreetype"
3321 drawtext_filter_suggest="libfontconfig libfribidi"
3322 elbg_filter_deps="avcodec"
3323 eq_filter_deps="gpl"
3324 fftfilt_filter_deps="avcodec"
3325 fftfilt_filter_select="rdft"
3326 find_rect_filter_deps="avcodec avformat gpl"
3327 firequalizer_filter_deps="avcodec"
3328 firequalizer_filter_select="rdft"
3329 flite_filter_deps="libflite"
3330 framerate_filter_select="pixelutils"
3331 frei0r_filter_deps="frei0r libdl"
3332 frei0r_src_filter_deps="frei0r libdl"
3333 fspp_filter_deps="gpl"
3334 geq_filter_deps="gpl"
3335 histeq_filter_deps="gpl"
3336 hqdn3d_filter_deps="gpl"
3337 interlace_filter_deps="gpl"
3338 kerndeint_filter_deps="gpl"
3339 ladspa_filter_deps="ladspa libdl"
3340 lv2_filter_deps="lv2"
3341 mcdeint_filter_deps="avcodec gpl"
3342 movie_filter_deps="avcodec avformat"
3343 mpdecimate_filter_deps="gpl"
3344 mpdecimate_filter_select="pixelutils"
3345 mptestsrc_filter_deps="gpl"
3346 negate_filter_deps="lut_filter"
3347 nnedi_filter_deps="gpl"
3348 ocr_filter_deps="libtesseract"
3349 ocv_filter_deps="libopencv"
3350 openclsrc_filter_deps="opencl"
3351 overlay_opencl_filter_deps="opencl"
3352 overlay_qsv_filter_deps="libmfx"
3353 overlay_qsv_filter_select="qsvvpp"
3354 owdenoise_filter_deps="gpl"
3355 pan_filter_deps="swresample"
3356 perspective_filter_deps="gpl"
3357 phase_filter_deps="gpl"
3358 pp7_filter_deps="gpl"
3359 pp_filter_deps="gpl postproc"
3360 procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3361 program_opencl_filter_deps="opencl"
3362 pullup_filter_deps="gpl"
3363 removelogo_filter_deps="avcodec avformat swscale"
3364 repeatfields_filter_deps="gpl"
3365 resample_filter_deps="avresample"
3366 rubberband_filter_deps="librubberband"
3367 sab_filter_deps="gpl swscale"
3368 scale2ref_filter_deps="swscale"
3369 scale_filter_deps="swscale"
3370 scale_qsv_filter_deps="libmfx"
3371 select_filter_select="pixelutils"
3372 sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3373 showcqt_filter_deps="avcodec avformat swscale"
3374 showcqt_filter_suggest="libfontconfig libfreetype"
3375 showcqt_filter_select="fft"
3376 showfreqs_filter_deps="avcodec"
3377 showfreqs_filter_select="fft"
3378 showspectrum_filter_deps="avcodec"
3379 showspectrum_filter_select="fft"
3380 showspectrumpic_filter_deps="avcodec"
3381 showspectrumpic_filter_select="fft"
3382 signature_filter_deps="gpl avcodec avformat"
3383 smartblur_filter_deps="gpl swscale"
3384 sofalizer_filter_deps="libmysofa avcodec"
3385 sofalizer_filter_select="fft"
3386 spectrumsynth_filter_deps="avcodec"
3387 spectrumsynth_filter_select="fft"
3388 spp_filter_deps="gpl avcodec"
3389 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3390 stereo3d_filter_deps="gpl"
3391 subtitles_filter_deps="avformat avcodec libass"
3392 super2xsai_filter_deps="gpl"
3393 pixfmts_super2xsai_test_deps="super2xsai_filter"
3394 tinterlace_filter_deps="gpl"
3395 tinterlace_merge_test_deps="tinterlace_filter"
3396 tinterlace_pad_test_deps="tinterlace_filter"
3397 tonemap_filter_deps="const_nan"
3398 unsharp_opencl_filter_deps="opencl"
3399 uspp_filter_deps="gpl avcodec"
3400 vaguedenoiser_filter_deps="gpl"
3401 vidstabdetect_filter_deps="libvidstab"
3402 vidstabtransform_filter_deps="libvidstab"
3403 libvmaf_filter_deps="libvmaf pthreads"
3404 zmq_filter_deps="libzmq"
3405 zoompan_filter_deps="swscale"
3406 zscale_filter_deps="libzimg const_nan"
3407 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3408 vpp_qsv_filter_deps="libmfx"
3409 vpp_qsv_filter_select="qsvvpp"
3410
3411 # examples
3412 avio_dir_cmd_deps="avformat avutil"
3413 avio_reading_deps="avformat avcodec avutil"
3414 decode_audio_example_deps="avcodec avutil"
3415 decode_video_example_deps="avcodec avutil"
3416 demuxing_decoding_example_deps="avcodec avformat avutil"
3417 encode_audio_example_deps="avcodec avutil"
3418 encode_video_example_deps="avcodec avutil"
3419 extract_mvs_example_deps="avcodec avformat avutil"
3420 filter_audio_example_deps="avfilter avutil"
3421 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3422 filtering_video_example_deps="avfilter avcodec avformat avutil"
3423 http_multiclient_example_deps="avformat avutil fork"
3424 hw_decode_example_deps="avcodec avformat avutil"
3425 metadata_example_deps="avformat avutil"
3426 muxing_example_deps="avcodec avformat avutil swscale"
3427 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3428 remuxing_example_deps="avcodec avformat avutil"
3429 resampling_audio_example_deps="avutil swresample"
3430 scaling_video_example_deps="avutil swscale"
3431 transcode_aac_example_deps="avcodec avformat swresample"
3432 transcoding_example_deps="avfilter avcodec avformat avutil"
3433 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3434 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3435
3436 # EXTRALIBS_LIST
3437 cpu_init_extralibs="pthreads_extralibs"
3438 cws2fws_extralibs="zlib_extralibs"
3439
3440 # libraries, in linking order
3441 avcodec_deps="avutil"
3442 avcodec_suggest="libm"
3443 avcodec_select="null_bsf"
3444 avdevice_deps="avformat avcodec avutil"
3445 avdevice_suggest="libm"
3446 avfilter_deps="avutil"
3447 avfilter_suggest="libm"
3448 avformat_deps="avcodec avutil"
3449 avformat_suggest="libm network zlib"
3450 avresample_deps="avutil"
3451 avresample_suggest="libm"
3452 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3453 postproc_deps="avutil gpl"
3454 postproc_suggest="libm"
3455 swresample_deps="avutil"
3456 swresample_suggest="libm libsoxr"
3457 swscale_deps="avutil"
3458 swscale_suggest="libm"
3459
3460 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3461 avfilter_extralibs="pthreads_extralibs"
3462 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3463
3464 # programs
3465 ffmpeg_deps="avcodec avfilter avformat swresample"
3466 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3467                null_filter
3468                trim_filter"
3469 ffmpeg_suggest="ole32 psapi shell32"
3470 ffplay_deps="avcodec avformat swscale swresample sdl2"
3471 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3472 ffplay_suggest="shell32"
3473 ffprobe_deps="avcodec avformat"
3474 ffprobe_suggest="shell32"
3475
3476 # documentation
3477 podpages_deps="perl"
3478 manpages_deps="perl pod2man"
3479 htmlpages_deps="perl"
3480 htmlpages_deps_any="makeinfo_html texi2html"
3481 txtpages_deps="perl makeinfo"
3482 doc_deps_any="manpages htmlpages podpages txtpages"
3483
3484 # default parameters
3485
3486 logfile="ffbuild/config.log"
3487
3488 # installation paths
3489 prefix_default="/usr/local"
3490 bindir_default='${prefix}/bin'
3491 datadir_default='${prefix}/share/ffmpeg'
3492 docdir_default='${prefix}/share/doc/ffmpeg'
3493 incdir_default='${prefix}/include'
3494 libdir_default='${prefix}/lib'
3495 mandir_default='${prefix}/share/man'
3496
3497 # toolchain
3498 ar_default="ar"
3499 cc_default="gcc"
3500 cxx_default="g++"
3501 host_cc_default="gcc"
3502 doxygen_default="doxygen"
3503 install="install"
3504 ln_s_default="ln -s -f"
3505 nm_default="nm -g"
3506 pkg_config_default=pkg-config
3507 ranlib_default="ranlib"
3508 strip_default="strip"
3509 version_script='--version-script'
3510 objformat="elf32"
3511 x86asmexe_default="nasm"
3512 windres_default="windres"
3513 nvcc_default="nvcc"
3514 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3515 striptype="direct"
3516
3517 # OS
3518 target_os_default=$(tolower $(uname -s))
3519 host_os=$target_os_default
3520
3521 # machine
3522 if test "$target_os_default" = aix; then
3523     arch_default=$(uname -p)
3524     strip_default="strip -X32_64"
3525 else
3526     arch_default=$(uname -m)
3527 fi
3528 cpu="generic"
3529 intrinsics="none"
3530
3531 # configurable options
3532 enable $PROGRAM_LIST
3533 enable $DOCUMENT_LIST
3534 enable $EXAMPLE_LIST
3535 enable $(filter_out avresample $LIBRARY_LIST)
3536 enable stripping
3537
3538 enable asm
3539 enable debug
3540 enable doc
3541 enable faan faandct faanidct
3542 enable optimizations
3543 enable runtime_cpudetect
3544 enable safe_bitstream_reader
3545 enable static
3546 enable swscale_alpha
3547 enable valgrind_backtrace
3548
3549 sws_max_filter_size_default=256
3550 set_default sws_max_filter_size
3551
3552 # internal components are enabled by default
3553 enable $EXTRALIBS_LIST
3554
3555 # Avoid external, non-system, libraries getting enabled by dependency resolution
3556 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3557
3558 # build settings
3559 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3560 LIBPREF="lib"
3561 LIBSUF=".a"
3562 FULLNAME='$(NAME)$(BUILDSUF)'
3563 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3564 SLIBPREF="lib"
3565 SLIBSUF=".so"
3566 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3567 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3568 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3569 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3570 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3571 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3572 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3573
3574 asflags_filter=echo
3575 cflags_filter=echo
3576 ldflags_filter=echo
3577
3578 AS_C='-c'
3579 AS_O='-o $@'
3580 CC_C='-c'
3581 CC_E='-E -o $@'
3582 CC_O='-o $@'
3583 CXX_C='-c'
3584 CXX_O='-o $@'
3585 OBJCC_C='-c'
3586 OBJCC_E='-E -o $@'
3587 OBJCC_O='-o $@'
3588 X86ASM_O='-o $@'
3589 LD_O='-o $@'
3590 LD_LIB='-l%'
3591 LD_PATH='-L'
3592 HOSTCC_C='-c'
3593 HOSTCC_E='-E -o $@'
3594 HOSTCC_O='-o $@'
3595 HOSTLD_O='-o $@'
3596 NVCC_C='-c'
3597 NVCC_O='-o $@'
3598
3599 host_extralibs='-lm'
3600 host_cflags_filter=echo
3601 host_ldflags_filter=echo
3602
3603 target_path='$(CURDIR)'
3604
3605 # since the object filename is not given with the -MM flag, the compiler
3606 # is only able to print the basename, and we must add the path ourselves
3607 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3608 DEPFLAGS='-MM'
3609
3610 mkdir -p ffbuild
3611
3612 # find source path
3613 if test -f configure; then
3614     source_path=.
3615 else
3616     source_path=$(cd $(dirname "$0"); pwd)
3617     case "$source_path" in
3618         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3619     esac
3620     test -e "$source_path/config.h" &&
3621         die "Out of tree builds are impossible with config.h in source dir."
3622 fi
3623
3624 for v in "$@"; do
3625     r=${v#*=}
3626     l=${v%"$r"}
3627     r=$(sh_quote "$r")
3628     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3629 done
3630
3631 find_things_extern(){
3632     thing=$1
3633     pattern=$2
3634     file=$source_path/$3
3635     out=${4:-$thing}
3636     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3637 }
3638
3639 find_filters_extern(){
3640     file=$source_path/$1
3641     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3642     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3643 }
3644
3645 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3646 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3647 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3648 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3649 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3650 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3651 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3652 CODEC_LIST="
3653     $ENCODER_LIST
3654     $DECODER_LIST
3655 "
3656 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)
3657 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3658 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3659 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3660
3661 AVCODEC_COMPONENTS_LIST="
3662     $BSF_LIST
3663     $DECODER_LIST
3664     $ENCODER_LIST
3665     $HWACCEL_LIST
3666     $PARSER_LIST
3667 "
3668
3669 AVDEVICE_COMPONENTS_LIST="
3670     $INDEV_LIST
3671     $OUTDEV_LIST
3672 "
3673
3674 AVFILTER_COMPONENTS_LIST="
3675     $FILTER_LIST
3676 "
3677
3678 AVFORMAT_COMPONENTS_LIST="
3679     $DEMUXER_LIST
3680     $MUXER_LIST
3681     $PROTOCOL_LIST
3682 "
3683
3684 ALL_COMPONENTS="
3685     $AVCODEC_COMPONENTS_LIST
3686     $AVDEVICE_COMPONENTS_LIST
3687     $AVFILTER_COMPONENTS_LIST
3688     $AVFORMAT_COMPONENTS_LIST
3689 "
3690
3691 for n in $COMPONENT_LIST; do
3692     v=$(toupper ${n%s})_LIST
3693     eval enable \$$v
3694     eval ${n}_if_any="\$$v"
3695 done
3696
3697 enable $ARCH_EXT_LIST
3698
3699 die_unknown(){
3700     echo "Unknown option \"$1\"."
3701     echo "See $0 --help for available options."
3702     exit 1
3703 }
3704
3705 print_in_columns() {
3706     cols=$(expr $ncols / 24)
3707     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3708 }
3709
3710 show_list() {
3711     suffix=_$1
3712     shift
3713     echo $* | sed s/$suffix//g | print_in_columns
3714     exit 0
3715 }
3716
3717 rand_list(){
3718     IFS=', '
3719     set -- $*
3720     unset IFS
3721     for thing; do
3722         comp=${thing%:*}
3723         prob=${thing#$comp}
3724         prob=${prob#:}
3725         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3726         echo "prob ${prob:-0.5}"
3727         printf '%s\n' $comp
3728     done
3729 }
3730
3731 do_random(){
3732     action=$1
3733     shift
3734     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3735     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3736 }
3737
3738 for opt do
3739     optval="${opt#*=}"
3740     case "$opt" in
3741         --extra-ldflags=*)
3742             add_ldflags $optval
3743         ;;
3744         --extra-ldexeflags=*)
3745             add_ldexeflags $optval
3746         ;;
3747         --extra-ldsoflags=*)
3748             add_ldsoflags $optval
3749         ;;
3750         --extra-ldlibflags=*)
3751             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3752                  "removed in the future. Use --extra-ldsoflags instead."
3753             add_ldsoflags $optval
3754         ;;
3755         --extra-libs=*)
3756             add_extralibs $optval
3757         ;;
3758         --disable-devices)
3759             disable $INDEV_LIST $OUTDEV_LIST
3760         ;;
3761         --enable-debug=*)
3762             debuglevel="$optval"
3763         ;;
3764         --disable-programs)
3765             disable $PROGRAM_LIST
3766         ;;
3767         --disable-everything)
3768             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3769         ;;
3770         --disable-all)
3771             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3772             disable $LIBRARY_LIST $PROGRAM_LIST doc
3773             enable avutil
3774         ;;
3775         --enable-random|--disable-random)
3776             action=${opt%%-random}
3777             do_random ${action#--} $COMPONENT_LIST
3778         ;;
3779         --enable-random=*|--disable-random=*)
3780             action=${opt%%-random=*}
3781             do_random ${action#--} $optval
3782         ;;
3783         --enable-sdl)
3784             enable sdl2
3785         ;;
3786         --enable-*=*|--disable-*=*)
3787             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3788             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3789             eval list=\$$(toupper $thing)_LIST
3790             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3791             list=$(filter "$name" $list)
3792             [ "$list" = "" ] && warn "Option $opt did not match anything"
3793             $action $list
3794         ;;
3795         --enable-yasm|--disable-yasm)
3796             warn "The ${opt} option is only provided for compatibility and will be\n"\
3797                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3798             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3799         ;;
3800         --yasmexe=*)
3801             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3802                  "removed in the future. Use --x86asmexe instead."
3803             x86asmexe="$optval"
3804         ;;
3805         --enable-?*|--disable-?*)
3806             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3807             if is_in $option $COMPONENT_LIST; then
3808                 test $action = disable && action=unset
3809                 eval $action \$$(toupper ${option%s})_LIST
3810             elif is_in $option $CMDLINE_SELECT; then
3811                 $action $option
3812             else
3813                 die_unknown $opt
3814             fi
3815         ;;
3816         --list-*)
3817             NAME="${opt#--list-}"
3818             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3819             NAME=${NAME%s}
3820             eval show_list $NAME \$$(toupper $NAME)_LIST
3821         ;;
3822         --help|-h) show_help
3823         ;;
3824         --quiet|-q) quiet=yes
3825         ;;
3826         --fatal-warnings) enable fatal_warnings
3827         ;;
3828         --libfuzzer=*)
3829             libfuzzer_path="$optval"
3830         ;;
3831         *)
3832             optname="${opt%%=*}"
3833             optname="${optname#--}"
3834             optname=$(echo "$optname" | sed 's/-/_/g')
3835             if is_in $optname $CMDLINE_SET; then
3836                 eval $optname='$optval'
3837             elif is_in $optname $CMDLINE_APPEND; then
3838                 append $optname "$optval"
3839             else
3840                 die_unknown $opt
3841             fi
3842         ;;
3843     esac
3844 done
3845
3846 for e in $env; do
3847     eval "export $e"
3848 done
3849
3850 if disabled autodetect; then
3851
3852     # Unless iconv is explicitely disabled by the user, we still want to probe
3853     # for the iconv from the libc.
3854     disabled iconv || enable libc_iconv
3855
3856     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3857     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3858 fi
3859 # Mark specifically enabled, but normally autodetected libraries as requested.
3860 for lib in $AUTODETECT_LIBS; do
3861     enabled $lib && request $lib
3862 done
3863 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3864 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3865 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3866
3867 disabled logging && logfile=/dev/null
3868
3869 # command line configuration sanity checks
3870
3871 # we need to build at least one lib type
3872 if ! enabled_any static shared; then
3873     cat <<EOF
3874 At least one library type must be built.
3875 Specify --enable-static to build the static libraries or --enable-shared to
3876 build the shared libraries as well. To only build the shared libraries specify
3877 --disable-static in addition to --enable-shared.
3878 EOF
3879     exit 1
3880 fi
3881
3882 die_license_disabled() {
3883     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3884 }
3885
3886 die_license_disabled_gpl() {
3887     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3888 }
3889
3890 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3891 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3892
3893 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3894 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3895
3896 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3897
3898 if enabled nonfree; then
3899     license="nonfree and unredistributable"
3900 elif enabled gplv3; then
3901     license="GPL version 3 or later"
3902 elif enabled lgplv3; then
3903     license="LGPL version 3 or later"
3904 elif enabled gpl; then
3905     license="GPL version 2 or later"
3906 else
3907     license="LGPL version 2.1 or later"
3908 fi
3909
3910 enabled_all gnutls openssl &&
3911     die "GnuTLS and OpenSSL must not be enabled at the same time."
3912
3913 enabled_all gnutls mbedtls &&
3914     die "GnuTLS and mbedTLS must not be enabled at the same time."
3915
3916 enabled_all openssl mbedtls &&
3917     die "OpenSSL and mbedTLS must not be enabled at the same time."
3918
3919 # Disable all the library-specific components if the library itself
3920 # is disabled, see AVCODEC_LIST and following _LIST variables.
3921
3922 disable_components(){
3923     disabled ${1} && disable $(
3924         eval components="\$$(toupper ${1})_COMPONENTS"
3925         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3926     )
3927 }
3928
3929 map 'disable_components $v' $LIBRARY_LIST
3930
3931 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3932 set >> $logfile
3933
3934 test -n "$valgrind" && toolchain="valgrind-memcheck"
3935
3936 enabled ossfuzz && {
3937     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3938     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3939 }
3940
3941 case "$toolchain" in
3942     *-asan)
3943         cc_default="${toolchain%-asan}"
3944         add_cflags  -fsanitize=address
3945         add_ldflags -fsanitize=address
3946     ;;
3947     *-msan)
3948         cc_default="${toolchain%-msan}"
3949         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3950         add_ldflags -fsanitize=memory
3951     ;;
3952     *-tsan)
3953         cc_default="${toolchain%-tsan}"
3954         add_cflags  -fsanitize=thread -fPIE
3955         add_ldflags -fsanitize=thread -pie
3956         case "$toolchain" in
3957             gcc-tsan)
3958                 add_cflags  -fPIC
3959                 add_ldflags -fPIC
3960                 ;;
3961         esac
3962     ;;
3963     *-usan)
3964         cc_default="${toolchain%-usan}"
3965         add_cflags  -fsanitize=undefined
3966         add_ldflags -fsanitize=undefined
3967     ;;
3968     valgrind-*)
3969         target_exec_default="valgrind"
3970         case "$toolchain" in
3971             valgrind-massif)
3972                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3973                 ;;
3974             valgrind-memcheck)
3975                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3976                 ;;
3977         esac
3978     ;;
3979     msvc)
3980         # Check whether the current MSVC version needs the C99 converter.
3981         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3982         # support enough of C99 to build ffmpeg. Default to the new
3983         # behaviour if the regexp was unable to match anything, since this
3984         # successfully parses the version number of existing supported
3985         # versions that require the converter (MSVC 2010 and 2012).
3986         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3987         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3988             cc_default="cl"
3989             cxx_default="cl"
3990         else
3991             cc_default="c99wrap cl"
3992             cxx_default="c99wrap cl"
3993         fi
3994         ld_default="$source_path/compat/windows/mslink"
3995         nm_default="dumpbin -symbols"
3996         ar_default="lib"
3997         case "$arch" in
3998         aarch64|arm64)
3999             as_default="armasm64"
4000             ;;
4001         arm*)
4002             as_default="armasm"
4003             ;;
4004         esac
4005         target_os_default="win32"
4006         # Use a relative path for TMPDIR. This makes sure all the
4007         # ffconf temp files are written with a relative path, avoiding
4008         # issues with msys/win32 path conversion for MSVC parameters
4009         # such as -Fo<file> or -out:<file>.
4010         TMPDIR=.
4011     ;;
4012     icl)
4013         cc_default="icl"
4014         ld_default="xilink"
4015         nm_default="dumpbin -symbols"
4016         ar_default="xilib"
4017         target_os_default="win32"
4018         TMPDIR=.
4019     ;;
4020     gcov)
4021         add_cflags  -fprofile-arcs -ftest-coverage
4022         add_ldflags -fprofile-arcs -ftest-coverage
4023     ;;
4024     llvm-cov)
4025         add_cflags -fprofile-arcs -ftest-coverage
4026         add_ldflags --coverage
4027     ;;
4028     hardened)
4029         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4030         add_cflags   -fno-strict-overflow -fstack-protector-all
4031         add_ldflags  -Wl,-z,relro -Wl,-z,now
4032         add_cflags   -fPIE
4033         add_ldexeflags -fPIE -pie
4034     ;;
4035     ?*)
4036         die "Unknown toolchain $toolchain"
4037     ;;
4038 esac
4039
4040 if test -n "$cross_prefix"; then
4041     test -n "$arch" && test -n "$target_os" ||
4042         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4043     enable cross_compile
4044 fi
4045
4046 ar_default="${cross_prefix}${ar_default}"
4047 cc_default="${cross_prefix}${cc_default}"
4048 cxx_default="${cross_prefix}${cxx_default}"
4049 nm_default="${cross_prefix}${nm_default}"
4050 pkg_config_default="${cross_prefix}${pkg_config_default}"
4051 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4052     ranlib_default="${cross_prefix}${ranlib_default} -D"
4053 else
4054     ranlib_default="${cross_prefix}${ranlib_default}"
4055 fi
4056 strip_default="${cross_prefix}${strip_default}"
4057 windres_default="${cross_prefix}${windres_default}"
4058
4059 sysinclude_default="${sysroot}/usr/include"
4060
4061 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4062     target_exec target_os x86asmexe nvcc
4063 enabled cross_compile || host_cc_default=$cc
4064 set_default host_cc
4065
4066 pkg_config_fail_message=""
4067 if ! $pkg_config --version >/dev/null 2>&1; then
4068     warn "$pkg_config not found, library detection may fail."
4069     pkg_config=false
4070 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4071     pkg_config_fail_message="
4072 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4073 fi
4074
4075 if test $doxygen != $doxygen_default && \
4076   ! $doxygen --version >/dev/null 2>&1; then
4077     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4078 fi
4079
4080 exesuf() {
4081     case $1 in
4082         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4083     esac
4084 }
4085
4086 EXESUF=$(exesuf $target_os)
4087 HOSTEXESUF=$(exesuf $host_os)
4088
4089 # set temporary file name
4090 : ${TMPDIR:=$TEMPDIR}
4091 : ${TMPDIR:=$TMP}
4092 : ${TMPDIR:=/tmp}
4093
4094 if [ -n "$tempprefix" ] ; then
4095     mktemp(){
4096         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4097         echo "$tmpname"
4098         mkdir "$tmpname"
4099     }
4100 elif ! test_cmd mktemp -u XXXXXX; then
4101     # simple replacement for missing mktemp
4102     # NOT SAFE FOR GENERAL USE
4103     mktemp(){
4104         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4105         echo "$tmpname"
4106         mkdir "$tmpname"
4107     }
4108 fi
4109
4110 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4111     die "Unable to create temporary directory in $TMPDIR."
4112
4113 tmpfile(){
4114     tmp="${FFTMPDIR}/test"$2
4115     (set -C; exec > $tmp) 2> /dev/null ||
4116         die "Unable to create temporary file in $FFTMPDIR."
4117     eval $1=$tmp
4118 }
4119
4120 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4121 trap 'exit 2' INT
4122
4123 tmpfile TMPASM .asm
4124 tmpfile TMPC   .c
4125 tmpfile TMPCPP .cpp
4126 tmpfile TMPE   $EXESUF
4127 tmpfile TMPH   .h
4128 tmpfile TMPM   .m
4129 tmpfile TMPO   .o
4130 tmpfile TMPS   .S
4131 tmpfile TMPSH  .sh
4132 tmpfile TMPV   .ver
4133
4134 unset -f mktemp
4135
4136 chmod +x $TMPE
4137
4138 # make sure we can execute files in $TMPDIR
4139 cat > $TMPSH 2>> $logfile <<EOF
4140 #! /bin/sh
4141 EOF
4142 chmod +x $TMPSH >> $logfile 2>&1
4143 if ! $TMPSH >> $logfile 2>&1; then
4144     cat <<EOF
4145 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4146 variable to another directory and make sure that it is not mounted noexec.
4147 EOF
4148     die "Sanity test failed."
4149 fi
4150
4151 armasm_flags(){
4152     for flag; do
4153         case $flag in
4154             # Filter out MSVC cl.exe options from cflags that shouldn't
4155             # be passed to gas-preprocessor
4156             -M[TD]*)                                            ;;
4157             *)                  echo $flag                      ;;
4158         esac
4159    done
4160 }
4161
4162 cparser_flags(){
4163     for flag; do
4164         case $flag in
4165             -Wno-switch)             echo -Wno-switch-enum ;;
4166             -Wno-format-zero-length) ;;
4167             -Wdisabled-optimization) ;;
4168             -Wno-pointer-sign)       echo -Wno-other ;;
4169             *)                       echo $flag ;;
4170         esac
4171     done
4172 }
4173
4174 msvc_common_flags(){
4175     for flag; do
4176         case $flag in
4177             # In addition to specifying certain flags under the compiler
4178             # specific filters, they must be specified here as well or else the
4179             # generic catch all at the bottom will print the original flag.
4180             -Wall)                ;;
4181             -Wextra)              ;;
4182             -std=c99)             ;;
4183             # Common flags
4184             -fomit-frame-pointer) ;;
4185             -g)                   echo -Z7 ;;
4186             -fno-math-errno)      ;;
4187             -fno-common)          ;;
4188             -fno-signed-zeros)    ;;
4189             -fPIC)                ;;
4190             -mthumb)              ;;
4191             -march=*)             ;;
4192             -lz)                  echo zlib.lib ;;
4193             -lx264)               echo libx264.lib ;;
4194             -lstdc++)             ;;
4195             -l*)                  echo ${flag#-l}.lib ;;
4196             -LARGEADDRESSAWARE)   echo $flag ;;
4197             -L*)                  echo -libpath:${flag#-L} ;;
4198             *)                    echo $flag ;;
4199         esac
4200     done
4201 }
4202
4203 msvc_flags(){
4204     msvc_common_flags "$@"
4205     for flag; do
4206         case $flag in
4207             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4208                                        -wd4554 ;;
4209             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4210                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4211                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4212                                        -wd4307 \
4213                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4214         esac
4215     done
4216 }
4217
4218 icl_flags(){
4219     msvc_common_flags "$@"
4220     for flag; do
4221         case $flag in
4222             # Despite what Intel's documentation says -Wall, which is supported
4223             # on Windows, does enable remarks so disable them here.
4224             -Wall)                echo $flag -Qdiag-disable:remark ;;
4225             -std=c99)             echo -Qstd=c99 ;;
4226             -flto)                echo -ipo ;;
4227         esac
4228     done
4229 }
4230
4231 icc_flags(){
4232     for flag; do
4233         case $flag in
4234             -flto)                echo -ipo ;;
4235             *)                    echo $flag ;;
4236         esac
4237     done
4238 }
4239
4240 suncc_flags(){
4241     for flag; do
4242         case $flag in
4243             -march=*|-mcpu=*)
4244                 case "${flag#*=}" in
4245                     native)                   echo -xtarget=native       ;;
4246                     v9|niagara)               echo -xarch=sparc          ;;
4247                     ultrasparc)               echo -xarch=sparcvis       ;;
4248                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4249                     i586|pentium)             echo -xchip=pentium        ;;
4250                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4251                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4252                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4253                     pentium4*)          echo -xtarget=pentium4           ;;
4254                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4255                     *-sse3)             echo -xarch=sse3                 ;;
4256                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4257                     bonnell)                   echo -xarch=ssse3         ;;
4258                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4259                     westmere)                  echo -xtarget=westmere    ;;
4260                     silvermont)                echo -xarch=sse4_2        ;;
4261                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4262                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4263                                                echo -xarch=avx           ;;
4264                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4265                     btver1)                    echo -xarch=amdsse4a      ;;
4266                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4267                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4268                     k8|opteron|athlon64|athlon-fx)
4269                                                echo -xarch=sse2a         ;;
4270                     athlon*)                   echo -xarch=pentium_proa  ;;
4271                 esac
4272                 ;;
4273             -std=c99)             echo -xc99              ;;
4274             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4275             -fPIC)                echo -KPIC -xcode=pic32 ;;
4276             -W*,*)                echo $flag              ;;
4277             -f*-*|-W*|-mimpure-text)                      ;;
4278             -shared)              echo -G                 ;;
4279             *)                    echo $flag              ;;
4280         esac
4281     done
4282 }
4283
4284 probe_cc(){
4285     pfx=$1
4286     _cc=$2
4287     first=$3
4288
4289     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4290     unset _ld_o _ldflags _ld_lib _ld_path
4291     unset _depflags _DEPCMD _DEPFLAGS
4292     _flags_filter=echo
4293
4294     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4295         true # no-op to avoid reading stdin in following checks
4296     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4297         _type=llvm_gcc
4298         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4299         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4300         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4301         _cflags_speed='-O3'
4302         _cflags_size='-Os'
4303     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4304         _type=gcc
4305         gcc_version=$($_cc --version | head -n1)
4306         gcc_basever=$($_cc -dumpversion)
4307         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4308         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4309         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4310         case $gcc_basever in
4311             2) ;;
4312             2.*) ;;
4313             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4314         esac
4315         if [ "$first" = true ]; then
4316             case $gcc_basever in
4317                 4.2*)
4318                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4319             esac
4320         fi
4321         _cflags_speed='-O3'
4322         _cflags_size='-Os'
4323     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4324         _type=icc
4325         _ident=$($_cc --version | head -n1)
4326         _depflags='-MMD'
4327         _cflags_speed='-O3'
4328         _cflags_size='-Os'
4329         _cflags_noopt='-O1'
4330         _flags_filter=icc_flags
4331     elif $_cc -v 2>&1 | grep -q xlc; then
4332         _type=xlc
4333         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4334         _cflags_speed='-O5'
4335         _cflags_size='-O5 -qcompact'
4336     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4337         test -d "$sysroot" || die "No valid sysroot specified."
4338         _type=armcc
4339         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4340         armcc_conf="$PWD/armcc.conf"
4341         $_cc --arm_linux_configure                 \
4342              --arm_linux_config_file="$armcc_conf" \
4343              --configure_sysroot="$sysroot"        \
4344              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4345              die "Error creating armcc configuration file."
4346         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4347         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4348         as_default="${cross_prefix}gcc"
4349         _depflags='-MMD'
4350         _cflags_speed='-O3'
4351         _cflags_size='-Os'
4352     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4353         _type=clang
4354         _ident=$($_cc --version 2>/dev/null | head -n1)
4355         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4356         _cflags_speed='-O3'
4357         _cflags_size='-Oz'
4358     elif $_cc -V 2>&1 | grep -q Sun; then
4359         _type=suncc
4360         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4361         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4362         _DEPFLAGS='-xM1 -xc99'
4363         _ldflags='-std=c99'
4364         _cflags_speed='-O5'
4365         _cflags_size='-O5 -xspace'
4366         _flags_filter=suncc_flags
4367     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4368         _type=pathscale
4369         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4370         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4371         _cflags_speed='-O2'
4372         _cflags_size='-Os'
4373         _flags_filter='filter_out -Wdisabled-optimization'
4374     elif $_cc -v 2>&1 | grep -q Open64; then
4375         _type=open64
4376         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4377         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4378         _cflags_speed='-O2'
4379         _cflags_size='-Os'
4380         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4381     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4382         _type=armasm
4383         _ident=$($_cc | head -n1)
4384         # 4509: "This form of conditional instruction is deprecated"
4385         _flags="-nologo -ignore 4509"
4386         _flags_filter=armasm_flags
4387     elif $_cc 2>&1 | grep -q Intel; then
4388         _type=icl
4389         _ident=$($_cc 2>&1 | head -n1)
4390         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4391         # Not only is O3 broken on 13.x+ but it is slower on all previous
4392         # versions (tested) as well.
4393         _cflags_speed="-O2"
4394         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4395         if $_cc 2>&1 | grep -q Linker; then
4396             _ld_o='-out:$@'
4397         else
4398             _ld_o='-Fe$@'
4399         fi
4400         _cc_o='-Fo$@'
4401         _cc_e='-P'
4402         _flags_filter=icl_flags
4403         _ld_lib='lib%.a'
4404         _ld_path='-libpath:'
4405         # -Qdiag-error to make icl error when seeing certain unknown arguments
4406         _flags='-nologo -Qdiag-error:4044,10157'
4407         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4408         # with MSVC which enables it by default.
4409         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4410         disable stripping
4411     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4412         # lld can emulate multiple different linkers; in ms link.exe mode,
4413         # the -? parameter gives the help output which contains an identifyable
4414         # string, while it gives an error in other modes.
4415         _type=lld-link
4416         # The link.exe mode doesn't have a switch for getting the version,
4417         # but we can force it back to gnu mode and get the version from there.
4418         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4419         _ld_o='-out:$@'
4420         _flags_filter=msvc_flags
4421         _ld_lib='lib%.a'
4422         _ld_path='-libpath:'
4423     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4424         _type=msvc
4425         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4426         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4427         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4428         _cflags_speed="-O2"
4429         _cflags_size="-O1"
4430         _cflags_noopt="-O1"
4431         if $_cc -nologo- 2>&1 | grep -q Linker; then
4432             _ld_o='-out:$@'
4433         else
4434             _ld_o='-Fe$@'
4435         fi
4436         _cc_o='-Fo$@'
4437         _cc_e='-P -Fi$@'
4438         _flags_filter=msvc_flags
4439         _ld_lib='lib%.a'
4440         _ld_path='-libpath:'
4441         _flags='-nologo'
4442         disable stripping
4443     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4444         _type=cparser
4445         _ident=$($_cc --version | head -n1)
4446         _depflags='-MMD'
4447         _cflags_speed='-O4'
4448         _cflags_size='-O2'
4449         _flags_filter=cparser_flags
4450     fi
4451
4452     eval ${pfx}_type=\$_type
4453     eval ${pfx}_ident=\$_ident
4454 }
4455
4456 set_ccvars(){
4457     eval ${1}_C=\${_cc_c-\${${1}_C}}
4458     eval ${1}_E=\${_cc_e-\${${1}_E}}
4459     eval ${1}_O=\${_cc_o-\${${1}_O}}
4460
4461     if [ -n "$_depflags" ]; then
4462         eval ${1}_DEPFLAGS=\$_depflags
4463     else
4464         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4465         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4466         eval DEP${1}FLAGS=\$_flags
4467     fi
4468 }
4469
4470 probe_cc cc "$cc" "true"
4471 cflags_filter=$_flags_filter
4472 cflags_speed=$_cflags_speed
4473 cflags_size=$_cflags_size
4474 cflags_noopt=$_cflags_noopt
4475 add_cflags $_flags $_cflags
4476 cc_ldflags=$_ldflags
4477 set_ccvars CC
4478 set_ccvars CXX
4479
4480 probe_cc hostcc "$host_cc"
4481 host_cflags_filter=$_flags_filter
4482 host_cflags_speed=$_cflags_speed
4483 add_host_cflags  $_flags $_cflags
4484 set_ccvars HOSTCC
4485
4486 test -n "$cc_type" && enable $cc_type ||
4487     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4488
4489 : ${as_default:=$cc}
4490 : ${objcc_default:=$cc}
4491 : ${dep_cc_default:=$cc}
4492 : ${ld_default:=$cc}
4493 : ${host_ld_default:=$host_cc}
4494 set_default ar as objcc dep_cc ld ln_s host_ld windres
4495
4496 probe_cc as "$as"
4497 asflags_filter=$_flags_filter
4498 add_asflags $_flags $_cflags
4499 set_ccvars AS
4500
4501 probe_cc objcc "$objcc"
4502 objcflags_filter=$_flags_filter
4503 add_objcflags $_flags $_cflags
4504 set_ccvars OBJC
4505
4506 probe_cc ld "$ld"
4507 ldflags_filter=$_flags_filter
4508 add_ldflags $_flags $_ldflags
4509 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4510 LD_O=${_ld_o-$LD_O}
4511 LD_LIB=${_ld_lib-$LD_LIB}
4512 LD_PATH=${_ld_path-$LD_PATH}
4513
4514 probe_cc hostld "$host_ld"
4515 host_ldflags_filter=$_flags_filter
4516 add_host_ldflags $_flags $_ldflags
4517 HOSTLD_O=${_ld_o-$HOSTLD_O}
4518
4519 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4520     probe_cc depcc "$dep_cc"
4521     CCDEP=${_DEPCMD:-$DEPCMD}
4522     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4523     DEPCCFLAGS=$_flags
4524 fi
4525
4526 if $ar 2>&1 | grep -q Microsoft; then
4527     arflags="-nologo"
4528     ar_o='-out:$@'
4529 elif $ar 2>&1 | grep -q "\[D\] "; then
4530     arflags="rcD"
4531     ar_o='$@'
4532 else
4533     arflags="rc"
4534     ar_o='$@'
4535 fi
4536
4537 add_cflags $extra_cflags
4538 add_cxxflags $extra_cxxflags
4539 add_objcflags $extra_objcflags
4540 add_asflags $extra_cflags
4541
4542 if test -n "$sysroot"; then
4543     case "$cc_type" in
4544         gcc|llvm_gcc|clang)
4545             add_cppflags --sysroot="$sysroot"
4546             add_ldflags --sysroot="$sysroot"
4547         ;;
4548     esac
4549 fi
4550
4551 if test "$cpu" = host; then
4552     enabled cross_compile &&
4553         die "--cpu=host makes no sense when cross-compiling."
4554
4555     case "$cc_type" in
4556         gcc|llvm_gcc)
4557             check_native(){
4558                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4559                 sed -n "/cc1.*$1=/{
4560                             s/.*$1=\\([^ ]*\\).*/\\1/
4561                             p
4562                             q
4563                         }" $TMPE
4564             }
4565             cpu=$(check_native -march || check_native -mcpu)
4566         ;;
4567         clang)
4568             check_native(){
4569                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4570                 sed -n "/cc1.*-target-cpu /{
4571                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4572                             p
4573                             q
4574                         }" $TMPE
4575             }
4576             cpu=$(check_native -march)
4577         ;;
4578     esac
4579
4580     test "${cpu:-host}" = host &&
4581         die "--cpu=host not supported with compiler $cc"
4582 fi
4583
4584 # Deal with common $arch aliases
4585 case "$arch" in
4586     aarch64|arm64)
4587         arch="aarch64"
4588     ;;
4589     arm*|iPad*|iPhone*)
4590         arch="arm"
4591     ;;
4592     mips*|IP*)
4593         case "$arch" in
4594         *el)
4595             add_cppflags -EL
4596             add_ldflags -EL
4597         ;;
4598         *eb)
4599             add_cppflags -EB
4600             add_ldflags -EB
4601         ;;
4602         esac
4603         arch="mips"
4604     ;;
4605     parisc*|hppa*)
4606         arch="parisc"
4607     ;;
4608     "Power Macintosh"|ppc*|powerpc*)
4609         arch="ppc"
4610     ;;
4611     s390|s390x)
4612         arch="s390"
4613     ;;
4614     sh4|sh)
4615         arch="sh4"
4616     ;;
4617     sun4*|sparc*)
4618         arch="sparc"
4619     ;;
4620     tilegx|tile-gx)
4621         arch="tilegx"
4622     ;;
4623     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4624         arch="x86"
4625     ;;
4626 esac
4627
4628 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4629 enable $arch
4630
4631 # Add processor-specific flags
4632 if enabled aarch64; then
4633
4634     case $cpu in
4635         armv*)
4636             cpuflags="-march=$cpu"
4637         ;;
4638         *)
4639             cpuflags="-mcpu=$cpu"
4640         ;;
4641     esac
4642
4643 elif enabled alpha; then
4644
4645     cpuflags="-mcpu=$cpu"
4646
4647 elif enabled arm; then
4648
4649     check_arm_arch() {
4650         test_cpp_condition stddef.h \
4651             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4652             $cpuflags
4653     }
4654
4655     probe_arm_arch() {
4656         if   check_arm_arch 4;        then echo armv4
4657         elif check_arm_arch 4T;       then echo armv4t
4658         elif check_arm_arch 5;        then echo armv5
4659         elif check_arm_arch 5E;       then echo armv5e
4660         elif check_arm_arch 5T;       then echo armv5t
4661         elif check_arm_arch 5TE;      then echo armv5te
4662         elif check_arm_arch 5TEJ;     then echo armv5te
4663         elif check_arm_arch 6;        then echo armv6
4664         elif check_arm_arch 6J;       then echo armv6j
4665         elif check_arm_arch 6K;       then echo armv6k
4666         elif check_arm_arch 6Z;       then echo armv6z
4667         elif check_arm_arch 6KZ;      then echo armv6zk
4668         elif check_arm_arch 6ZK;      then echo armv6zk
4669         elif check_arm_arch 6T2;      then echo armv6t2
4670         elif check_arm_arch 7;        then echo armv7
4671         elif check_arm_arch 7A  7_A;  then echo armv7-a
4672         elif check_arm_arch 7S;       then echo armv7-a
4673         elif check_arm_arch 7R  7_R;  then echo armv7-r
4674         elif check_arm_arch 7M  7_M;  then echo armv7-m
4675         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4676         elif check_arm_arch 8A  8_A;  then echo armv8-a
4677         fi
4678     }
4679
4680     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4681
4682     case $cpu in
4683         armv*)
4684             cpuflags="-march=$cpu"
4685             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4686         ;;
4687         *)
4688             cpuflags="-mcpu=$cpu"
4689             case $cpu in
4690                 cortex-a*)                               subarch=armv7a  ;;
4691                 cortex-r*)                               subarch=armv7r  ;;
4692                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4693                 arm11*)                                  subarch=armv6   ;;
4694                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4695                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4696                 *)                             subarch=$(probe_arm_arch) ;;
4697             esac
4698         ;;
4699     esac
4700
4701     case "$subarch" in
4702         armv5t*)    enable fast_clz                ;;
4703         armv[6-8]*)
4704             enable fast_clz
4705             disabled fast_unaligned || enable fast_unaligned
4706             ;;
4707     esac
4708
4709 elif enabled avr32; then
4710
4711     case $cpu in
4712         ap7[02]0[0-2])
4713             subarch="avr32_ap"
4714             cpuflags="-mpart=$cpu"
4715         ;;
4716         ap)
4717             subarch="avr32_ap"
4718             cpuflags="-march=$cpu"
4719         ;;
4720         uc3[ab]*)
4721             subarch="avr32_uc"
4722             cpuflags="-mcpu=$cpu"
4723         ;;
4724         uc)
4725             subarch="avr32_uc"
4726             cpuflags="-march=$cpu"
4727         ;;
4728     esac
4729
4730 elif enabled bfin; then
4731
4732     cpuflags="-mcpu=$cpu"
4733
4734 elif enabled mips; then
4735
4736     cpuflags="-march=$cpu"
4737
4738     if [ "$cpu" != "generic" ]; then
4739         disable mips32r2
4740         disable mips32r5
4741         disable mips64r2
4742         disable mips32r6
4743         disable mips64r6
4744         disable loongson2
4745         disable loongson3
4746
4747         case $cpu in
4748             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4749                 enable mips32r2
4750                 disable msa
4751             ;;
4752             p5600|i6400|p6600)
4753                 disable mipsdsp
4754                 disable mipsdspr2
4755             ;;
4756             loongson*)
4757                 enable loongson2
4758                 enable loongson3
4759                 enable local_aligned
4760                 enable simd_align_16
4761                 enable fast_64bit
4762                 enable fast_clz
4763                 enable fast_cmov
4764                 enable fast_unaligned
4765                 disable aligned_stack
4766                 disable mipsfpu
4767                 disable mipsdsp
4768                 disable mipsdspr2
4769                 case $cpu in
4770                     loongson3*)
4771                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4772                     ;;
4773                     loongson2e)
4774                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4775                     ;;
4776                     loongson2f)
4777                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4778                     ;;
4779                 esac
4780             ;;
4781             *)
4782                 # Unknown CPU. Disable everything.
4783                 warn "unknown CPU. Disabling all MIPS optimizations."
4784                 disable mipsfpu
4785                 disable mipsdsp
4786                 disable mipsdspr2
4787                 disable msa
4788                 disable mmi
4789             ;;
4790         esac
4791
4792         case $cpu in
4793             24kc)
4794                 disable mipsfpu
4795                 disable mipsdsp
4796                 disable mipsdspr2
4797             ;;
4798             24kf*)
4799                 disable mipsdsp
4800                 disable mipsdspr2
4801             ;;
4802             24kec|34kc|1004kc)
4803                 disable mipsfpu
4804                 disable mipsdspr2
4805             ;;
4806             24kef*|34kf*|1004kf*)
4807                 disable mipsdspr2
4808             ;;
4809             74kc)
4810                 disable mipsfpu
4811             ;;
4812             p5600)
4813                 enable mips32r5
4814                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4815             ;;
4816             i6400)
4817                 enable mips64r6
4818                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4819             ;;
4820             p6600)
4821                 enable mips64r6
4822                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4823             ;;
4824         esac
4825     else
4826         # We do not disable anything. Is up to the user to disable the unwanted features.
4827         warn 'generic cpu selected'
4828     fi
4829
4830 elif enabled ppc; then
4831
4832     disable ldbrx
4833
4834     case $(tolower $cpu) in
4835         601|ppc601|powerpc601)
4836             cpuflags="-mcpu=601"
4837             disable altivec
4838         ;;
4839         603*|ppc603*|powerpc603*)
4840             cpuflags="-mcpu=603"
4841             disable altivec
4842         ;;
4843         604*|ppc604*|powerpc604*)
4844             cpuflags="-mcpu=604"
4845             disable altivec
4846         ;;
4847         g3|75*|ppc75*|powerpc75*)
4848             cpuflags="-mcpu=750"
4849             disable altivec
4850         ;;
4851         g4|745*|ppc745*|powerpc745*)
4852             cpuflags="-mcpu=7450"
4853             disable vsx
4854         ;;
4855         74*|ppc74*|powerpc74*)
4856             cpuflags="-mcpu=7400"
4857             disable vsx
4858         ;;
4859         g5|970|ppc970|powerpc970)
4860             cpuflags="-mcpu=970"
4861             disable vsx
4862         ;;
4863         power[3-6]*)
4864             cpuflags="-mcpu=$cpu"
4865             disable vsx
4866         ;;
4867         power[7-8]*)
4868             cpuflags="-mcpu=$cpu"
4869         ;;
4870         cell)
4871             cpuflags="-mcpu=cell"
4872             enable ldbrx
4873             disable vsx
4874         ;;
4875         e500mc)
4876             cpuflags="-mcpu=e500mc"
4877             disable altivec
4878         ;;
4879         e500v2)
4880             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4881             disable altivec
4882             disable dcbzl
4883         ;;
4884         e500)
4885             cpuflags="-mcpu=8540 -mhard-float"
4886             disable altivec
4887             disable dcbzl
4888         ;;
4889     esac
4890
4891 elif enabled sparc; then
4892
4893     case $cpu in
4894         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4895             cpuflags="-mcpu=$cpu"
4896         ;;
4897         ultrasparc*|niagara[234])
4898             cpuflags="-mcpu=$cpu"
4899         ;;
4900     esac
4901
4902 elif enabled x86; then
4903
4904     case $cpu in
4905         i[345]86|pentium)
4906             cpuflags="-march=$cpu"
4907             disable i686
4908             disable mmx
4909         ;;
4910         # targets that do NOT support nopl and conditional mov (cmov)