lavc: Add coded bitstream read/write support for H.265
[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   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188   --disable-v4l2_m2m       disable V4L2 mem2mem code [autodetect]
189
190 External library support:
191
192   Using any of the following switches will allow FFmpeg to link to the
193   corresponding external library. All the components depending on that library
194   will become enabled, if all their other dependencies are met and they are not
195   explicitly disabled. E.g. --enable-libwavpack will enable linking to
196   libwavpack and allow the libwavpack encoder to be built, unless it is
197   specifically disabled with --disable-encoder=libwavpack.
198
199   Note that only the system libraries are auto-detected. All the other external
200   libraries must be explicitly enabled.
201
202   Also note that the following help text describes the purpose of the libraries
203   themselves, not all their features will necessarily be usable by FFmpeg.
204
205   --disable-alsa           disable ALSA support [autodetect]
206   --disable-appkit         disable Apple AppKit framework [autodetect]
207   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
208   --enable-avisynth        enable reading of AviSynth script files [no]
209   --disable-bzlib          disable bzlib [autodetect]
210   --disable-coreimage      disable Apple CoreImage framework [autodetect]
211   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
212   --enable-frei0r          enable frei0r video filtering [no]
213   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
214                            if openssl, librtmp or gmp is not used [no]
215   --enable-gmp             enable gmp, needed for rtmp(t)e support
216                            if openssl or librtmp is not used [no]
217   --enable-gnutls          enable gnutls, needed for https support
218                            if openssl is not used [no]
219   --disable-iconv          disable iconv [autodetect]
220   --disable-jack           disable libjack support [autodetect]
221   --enable-jni             enable JNI support [no]
222   --enable-ladspa          enable LADSPA audio filtering [no]
223   --enable-libass          enable libass subtitles rendering,
224                            needed for subtitles and ass filter [no]
225   --enable-libbluray       enable BluRay reading using libbluray [no]
226   --enable-libbs2b         enable bs2b DSP library [no]
227   --enable-libcaca         enable textual display using libcaca [no]
228   --enable-libcelt         enable CELT decoding via libcelt [no]
229   --enable-libcdio         enable audio CD grabbing with libcdio [no]
230   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
231                            and libraw1394 [no]
232   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
233   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
234   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
235   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
236   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
237   --enable-libgme          enable Game Music Emu via libgme [no]
238   --enable-libgsm          enable GSM de/encoding via libgsm [no]
239   --enable-libiec61883     enable iec61883 via libiec61883 [no]
240   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
241   --enable-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-libssh          enable SFTP protocol via libssh [no]
261   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
262   --enable-libtheora       enable Theora encoding via libtheora [no]
263   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
264   --enable-libv4l2         enable libv4l2/v4l-utils [no]
265   --enable-libvidstab      enable video stabilization using vid.stab [no]
266   --enable-libvmaf         enable vmaf filter via libvmaf [no]
267   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
268   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
269                            native implementation exists [no]
270   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
271   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
272   --enable-libwebp         enable WebP encoding via libwebp [no]
273   --enable-libx264         enable H.264 encoding via x264 [no]
274   --enable-libx265         enable HEVC encoding via x265 [no]
275   --enable-libxavs         enable AVS encoding via xavs [no]
276   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
277   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
278   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
279   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
280   --enable-libxvid         enable Xvid encoding via xvidcore,
281                            native MPEG-4/Xvid encoder exists [no]
282   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
283   --enable-libzimg         enable z.lib, needed for zscale filter [no]
284   --enable-libzmq          enable message passing via libzmq [no]
285   --enable-libzvbi         enable teletext support via libzvbi [no]
286   --disable-lzma           disable lzma [autodetect]
287   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
288   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
289   --enable-mediacodec      enable Android MediaCodec support [no]
290   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
291   --enable-openal          enable OpenAL 1.1 capture support [no]
292   --enable-opencl          enable OpenCL code
293   --enable-opengl          enable OpenGL rendering [no]
294   --enable-openssl         enable openssl, needed for https support
295                            if gnutls is not used [no]
296   --disable-sndio          disable sndio support [autodetect]
297   --disable-schannel       disable SChannel SSP, needed for TLS support on
298                            Windows if openssl and gnutls are not used [autodetect]
299   --disable-sdl2           disable sdl2 [autodetect]
300   --disable-securetransport disable Secure Transport, needed for TLS support
301                            on OSX if openssl and gnutls are not used [autodetect]
302   --disable-xlib           disable xlib [autodetect]
303   --disable-zlib           disable zlib [autodetect]
304
305   The following libraries provide various hardware acceleration features:
306   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
307   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
308   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
309   --disable-cuvid          disable Nvidia CUVID support [autodetect]
310   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
311   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
312   --enable-libdrm          enable DRM code (Linux) [no]
313   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
314   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
315   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
316   --disable-nvenc          disable Nvidia video encoding code [autodetect]
317   --enable-omx             enable OpenMAX IL code [no]
318   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
319   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
320   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
321   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
322   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
323   --disable-videotoolbox   disable VideoToolbox code [autodetect]
324
325 Toolchain options:
326   --arch=ARCH              select architecture [$arch]
327   --cpu=CPU                select the minimum required CPU (affects
328                            instruction selection, may crash on older CPUs)
329   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
330   --progs-suffix=SUFFIX    program name suffix []
331   --enable-cross-compile   assume a cross-compiler is used
332   --sysroot=PATH           root of cross-build tree
333   --sysinclude=PATH        location of cross-build system headers
334   --target-os=OS           compiler targets OS [$target_os]
335   --target-exec=CMD        command to run executables on target
336   --target-path=DIR        path to view of build directory on target
337   --target-samples=DIR     path to samples directory on target
338   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
339   --toolchain=NAME         set tool defaults according to NAME
340   --nm=NM                  use nm tool NM [$nm_default]
341   --ar=AR                  use archive tool AR [$ar_default]
342   --as=AS                  use assembler AS [$as_default]
343   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
344   --strip=STRIP            use strip tool STRIP [$strip_default]
345   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
346   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
347   --cc=CC                  use C compiler CC [$cc_default]
348   --cxx=CXX                use C compiler CXX [$cxx_default]
349   --objcc=OCC              use ObjC compiler OCC [$cc_default]
350   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
351   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
352   --ld=LD                  use linker LD [$ld_default]
353   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
354   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
355   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
356   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
357   --host-cc=HOSTCC         use host C compiler HOSTCC
358   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
359   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
360   --host-ld=HOSTLD         use host linker HOSTLD
361   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
362   --host-libs=HLIBS        use libs HLIBS when linking for host
363   --host-os=OS             compiler host OS [$target_os]
364   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
365   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
366   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
367   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
368   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
369   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
370   --extra-libs=ELIBS       add ELIBS [$ELIBS]
371   --extra-version=STRING   version string suffix []
372   --optflags=OPTFLAGS      override optimization-related compiler flags
373   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
374   --build-suffix=SUFFIX    library name suffix []
375   --enable-pic             build position-independent code
376   --enable-thumb           compile for Thumb instruction set
377   --enable-lto             use link-time optimization
378   --env="ENV=override"     override the environment variables
379
380 Advanced options (experts only):
381   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
382   --custom-allocator=NAME  use a supported custom allocator
383   --disable-symver         disable symbol versioning
384   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
385   --disable-safe-bitstream-reader
386                            disable buffer boundary checking in bitreaders
387                            (faster, but may crash)
388   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
389
390 Optimization options (experts only):
391   --disable-asm            disable all assembly optimizations
392   --disable-altivec        disable AltiVec optimizations
393   --disable-vsx            disable VSX optimizations
394   --disable-power8         disable POWER8 optimizations
395   --disable-amd3dnow       disable 3DNow! optimizations
396   --disable-amd3dnowext    disable 3DNow! extended optimizations
397   --disable-mmx            disable MMX optimizations
398   --disable-mmxext         disable MMXEXT optimizations
399   --disable-sse            disable SSE optimizations
400   --disable-sse2           disable SSE2 optimizations
401   --disable-sse3           disable SSE3 optimizations
402   --disable-ssse3          disable SSSE3 optimizations
403   --disable-sse4           disable SSE4 optimizations
404   --disable-sse42          disable SSE4.2 optimizations
405   --disable-avx            disable AVX optimizations
406   --disable-xop            disable XOP optimizations
407   --disable-fma3           disable FMA3 optimizations
408   --disable-fma4           disable FMA4 optimizations
409   --disable-avx2           disable AVX2 optimizations
410   --disable-aesni          disable AESNI optimizations
411   --disable-armv5te        disable armv5te optimizations
412   --disable-armv6          disable armv6 optimizations
413   --disable-armv6t2        disable armv6t2 optimizations
414   --disable-vfp            disable VFP optimizations
415   --disable-neon           disable NEON optimizations
416   --disable-inline-asm     disable use of inline assembly
417   --disable-x86asm         disable use of standalone x86 assembly
418   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
419   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
420   --disable-msa            disable MSA optimizations
421   --disable-mipsfpu        disable floating point MIPS optimizations
422   --disable-mmi            disable Loongson SIMD optimizations
423   --disable-fast-unaligned consider unaligned accesses slow
424
425 Developer options (useful when working on FFmpeg itself):
426   --disable-debug          disable debugging symbols
427   --enable-debug=LEVEL     set the debug level [$debuglevel]
428   --disable-optimizations  disable compiler optimizations
429   --enable-extra-warnings  enable more compiler warnings
430   --disable-stripping      disable stripping of executables and shared libraries
431   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
432                            2 causes a slowdown at runtime.
433   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
434   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
435                            leaks and errors, using the specified valgrind binary.
436                            Cannot be combined with --target-exec
437   --enable-ftrapv          Trap arithmetic overflows
438   --samples=PATH           location of test samples for FATE, if not set use
439                            \$FATE_SAMPLES at make invocation time.
440   --enable-neon-clobber-test check NEON registers for clobbering (should be
441                            used only for debugging purposes)
442   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
443                            should be used only for debugging purposes)
444   --enable-random          randomly enable/disable components
445   --disable-random
446   --enable-random=LIST     randomly enable/disable specific components or
447   --disable-random=LIST    component groups. LIST is a comma-separated list
448                            of NAME[:PROB] entries where NAME is a component
449                            (group) and PROB the probability associated with
450                            NAME (default 0.5).
451   --random-seed=VALUE      seed value for --enable/disable-random
452   --disable-valgrind-backtrace do not print a backtrace under Valgrind
453                            (only applies to --disable-optimizations builds)
454   --enable-osfuzz          Enable building fuzzer tool
455   --libfuzzer=PATH         path to libfuzzer
456   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
457                            in the name) of tests whose result is ignored
458   --enable-linux-perf      enable Linux Performance Monitor API
459
460 NOTE: Object files are built at the place where configure is launched.
461 EOF
462   exit 0
463 }
464
465 quotes='""'
466 if test -t 1 && which tput >/dev/null 2>&1; then
467     ncolors=$(tput colors)
468     if test -n "$ncolors" && test $ncolors -ge 8; then
469         bold_color=$(tput bold)
470         warn_color=$(tput setaf 3)
471         error_color=$(tput setaf 1)
472         reset_color=$(tput sgr0)
473     fi
474     # 72 used instead of 80 since that's the default of pr
475     ncols=$(tput cols)
476 fi
477 : ${ncols:=72}
478
479 log(){
480     echo "$@" >> $logfile
481 }
482
483 log_file(){
484     log BEGIN $1
485     pr -n -t $1 >> $logfile
486     log END $1
487 }
488
489 warn(){
490     log "WARNING: $*"
491     WARNINGS="${WARNINGS}WARNING: $*\n"
492 }
493
494 die(){
495     log "$@"
496     echo "$error_color$bold_color$@$reset_color"
497     cat <<EOF
498
499 If you think configure made a mistake, make sure you are using the latest
500 version from Git.  If the latest version fails, report the problem to the
501 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
502 EOF
503     if disabled logging; then
504         cat <<EOF
505 Rerun configure with logging enabled (do not use --disable-logging), and
506 include the log this produces with your report.
507 EOF
508     else
509         cat <<EOF
510 Include the log file "$logfile" produced by configure as this will help
511 solve the problem.
512 EOF
513     fi
514     exit 1
515 }
516
517 # Avoid locale weirdness, besides we really just want to translate ASCII.
518 toupper(){
519     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
520 }
521
522 tolower(){
523     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
524 }
525
526 c_escape(){
527     echo "$*" | sed 's/["\\]/\\\0/g'
528 }
529
530 sh_quote(){
531     v=$(echo "$1" | sed "s/'/'\\\\''/g")
532     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
533     echo "$v"
534 }
535
536 cleanws(){
537     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
538 }
539
540 filter(){
541     pat=$1
542     shift
543     for v; do
544         eval "case $v in $pat) printf '%s ' $v ;; esac"
545     done
546 }
547
548 filter_out(){
549     pat=$1
550     shift
551     for v; do
552         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
553     done
554 }
555
556 map(){
557     m=$1
558     shift
559     for v; do eval $m; done
560 }
561
562 add_suffix(){
563     suffix=$1
564     shift
565     for v; do echo ${v}${suffix}; done
566 }
567
568 set_all(){
569     value=$1
570     shift
571     for var in $*; do
572         eval $var=$value
573     done
574 }
575
576 set_weak(){
577     value=$1
578     shift
579     for var; do
580         eval : \${$var:=$value}
581     done
582 }
583
584 sanitize_var_name(){
585     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
586 }
587
588 set_safe(){
589     var=$1
590     shift
591     eval $(sanitize_var_name "$var")='$*'
592 }
593
594 get_safe(){
595     eval echo \$$(sanitize_var_name "$1")
596 }
597
598 pushvar(){
599     for pvar in $*; do
600         eval level=\${${pvar}_level:=0}
601         eval ${pvar}_${level}="\$$pvar"
602         eval ${pvar}_level=$(($level+1))
603     done
604 }
605
606 popvar(){
607     for pvar in $*; do
608         eval level=\${${pvar}_level:-0}
609         test $level = 0 && continue
610         eval level=$(($level-1))
611         eval $pvar="\${${pvar}_${level}}"
612         eval ${pvar}_level=$level
613         eval unset ${pvar}_${level}
614     done
615 }
616
617 request(){
618     for var in $*; do
619         eval ${var}_requested=yes
620         eval $var=
621     done
622 }
623
624 enable(){
625     set_all yes $*
626 }
627
628 disable(){
629     set_all no $*
630 }
631
632 enable_weak(){
633     set_weak yes $*
634 }
635
636 disable_weak(){
637     set_weak no $*
638 }
639
640 enable_safe(){
641     for var; do
642         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
643     done
644 }
645
646 disable_safe(){
647     for var; do
648         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
649     done
650 }
651
652 do_enable_deep(){
653     for var; do
654         enabled $var && continue
655         eval sel="\$${var}_select"
656         eval sgs="\$${var}_suggest"
657         pushvar var sgs
658         enable_deep $sel
659         popvar sgs
660         enable_deep_weak $sgs
661         popvar var
662     done
663 }
664
665 enable_deep(){
666     do_enable_deep $*
667     enable $*
668 }
669
670 enable_deep_weak(){
671     for var; do
672         disabled $var && continue
673         pushvar var
674         do_enable_deep $var
675         popvar var
676         enable_weak $var
677     done
678 }
679
680 requested(){
681     test "${1#!}" = "$1" && op='=' || op=!=
682     eval test "x\$${1#!}_requested" $op "xyes"
683 }
684
685 enabled(){
686     test "${1#!}" = "$1" && op='=' || op=!=
687     eval test "x\$${1#!}" $op "xyes"
688 }
689
690 disabled(){
691     test "${1#!}" = "$1" && op='=' || op=!=
692     eval test "x\$${1#!}" $op "xno"
693 }
694
695 enabled_all(){
696     for opt; do
697         enabled $opt || return 1
698     done
699 }
700
701 disabled_all(){
702     for opt; do
703         disabled $opt || return 1
704     done
705 }
706
707 enabled_any(){
708     for opt; do
709         enabled $opt && return 0
710     done
711 }
712
713 disabled_any(){
714     for opt; do
715         disabled $opt && return 0
716     done
717     return 1
718 }
719
720 set_default(){
721     for opt; do
722         eval : \${$opt:=\$${opt}_default}
723     done
724 }
725
726 is_in(){
727     value=$1
728     shift
729     for var in $*; do
730         [ $var = $value ] && return 0
731     done
732     return 1
733 }
734
735 check_deps(){
736     for cfg; do
737         enabled ${cfg}_checking && die "Circular dependency for $cfg."
738         disabled ${cfg}_checking && continue
739         enable ${cfg}_checking
740
741         eval dep_all="\$${cfg}_deps"
742         eval dep_any="\$${cfg}_deps_any"
743         eval dep_con="\$${cfg}_conflict"
744         eval dep_sel="\$${cfg}_select"
745         eval dep_sgs="\$${cfg}_suggest"
746         eval dep_ifa="\$${cfg}_if"
747         eval dep_ifn="\$${cfg}_if_any"
748
749         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
750         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
751         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
752
753         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
754         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
755         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
756         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
757         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
758         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
759
760         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
761
762         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
763             # filter out library deps, these do not belong in extralibs
764             is_in $dep $LIBRARY_LIST && continue
765             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
766         done
767
768         disable ${cfg}_checking
769     done
770 }
771
772 print_config(){
773     pfx=$1
774     files=$2
775     shift 2
776     map 'eval echo "$v \${$v:-no}"' "$@" |
777     awk "BEGIN { split(\"$files\", files) }
778         {
779             c = \"$pfx\" toupper(\$1);
780             v = \$2;
781             sub(/yes/, 1, v);
782             sub(/no/,  0, v);
783             for (f in files) {
784                 file = files[f];
785                 if (file ~ /\\.h\$/) {
786                     printf(\"#define %s %d\\n\", c, v) >>file;
787                 } else if (file ~ /\\.asm\$/) {
788                     printf(\"%%define %s %d\\n\", c, v) >>file;
789                 } else if (file ~ /\\.mak\$/) {
790                     n = -v ? \"\" : \"!\";
791                     printf(\"%s%s=yes\\n\", n, c) >>file;
792                 } else if (file ~ /\\.texi\$/) {
793                     pre = -v ? \"\" : \"@c \";
794                     yesno = \$2;
795                     c2 = tolower(c);
796                     gsub(/_/, \"-\", c2);
797                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
798                 }
799             }
800         }"
801 }
802
803 print_enabled(){
804     suf=$1
805     shift
806     for v; do
807         enabled $v && printf "%s\n" ${v%$suf}
808     done
809 }
810
811 append(){
812     var=$1
813     shift
814     eval "$var=\"\$$var $*\""
815 }
816
817 prepend(){
818     var=$1
819     shift
820     eval "$var=\"$* \$$var\""
821 }
822
823 unique(){
824     var=$1
825     uniq_list=""
826     for tok in $(eval echo \$$var); do
827         uniq_list="$(filter_out $tok $uniq_list) $tok"
828     done
829     eval "$var=\"${uniq_list}\""
830 }
831
832 resolve(){
833     var=$1
834     tmpvar=
835     for entry in $(eval echo \$$var); do
836         tmpvar="$tmpvar $(eval echo \$${entry})"
837     done
838     eval "$var=\"${tmpvar}\""
839 }
840
841 add_cppflags(){
842     append CPPFLAGS "$@"
843 }
844
845 add_cflags(){
846     append CFLAGS $($cflags_filter "$@")
847 }
848
849 add_cflags_headers(){
850     append CFLAGS_HEADERS $($cflags_filter "$@")
851 }
852
853 add_cxxflags(){
854     append CXXFLAGS $($cflags_filter "$@")
855 }
856
857 add_asflags(){
858     append ASFLAGS $($asflags_filter "$@")
859 }
860
861 add_objcflags(){
862     append OBJCFLAGS $($objcflags_filter "$@")
863 }
864
865 add_ldflags(){
866     append LDFLAGS $($ldflags_filter "$@")
867 }
868
869 add_ldexeflags(){
870     append LDEXEFLAGS $($ldflags_filter "$@")
871 }
872
873 add_ldlibflags(){
874     append LDLIBFLAGS $($ldflags_filter "$@")
875 }
876
877 add_stripflags(){
878     append ASMSTRIPFLAGS "$@"
879 }
880
881 add_extralibs(){
882     prepend extralibs $($ldflags_filter "$@")
883 }
884
885 add_host_cppflags(){
886     append host_cppflags "$@"
887 }
888
889 add_host_cflags(){
890     append host_cflags $($host_cflags_filter "$@")
891 }
892
893 add_host_ldflags(){
894     append host_ldflags $($host_ldflags_filter "$@")
895 }
896
897 add_compat(){
898     append compat_objs $1
899     shift
900     map 'add_cppflags -D$v' "$@"
901 }
902
903 check_cmd(){
904     log "$@"
905     "$@" >> $logfile 2>&1
906 }
907
908 check_stat(){
909     log check_stat "$@"
910     stat "$1" >> $logfile 2>&1
911 }
912
913 cc_o(){
914     eval printf '%s\\n' $CC_O
915 }
916
917 cc_e(){
918     eval printf '%s\\n' $CC_E
919 }
920
921 check_cc(){
922     log check_cc "$@"
923     cat > $TMPC
924     log_file $TMPC
925     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
926 }
927
928 check_cxx(){
929     log check_cxx "$@"
930     cat > $TMPCPP
931     log_file $TMPCPP
932     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
933 }
934
935 check_objcc(){
936     log check_objcc "$@"
937     cat > $TMPM
938     log_file $TMPM
939     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
940 }
941
942 check_cpp(){
943     log check_cpp "$@"
944     cat > $TMPC
945     log_file $TMPC
946     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
947 }
948
949 as_o(){
950     eval printf '%s\\n' $AS_O
951 }
952
953 check_as(){
954     log check_as "$@"
955     cat > $TMPS
956     log_file $TMPS
957     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
958 }
959
960 check_inline_asm(){
961     log check_inline_asm "$@"
962     name="$1"
963     code="$2"
964     shift 2
965     disable $name
966     check_cc "$@" <<EOF && enable $name
967 void foo(void){ __asm__ volatile($code); }
968 EOF
969 }
970
971 check_inline_asm_flags(){
972     log check_inline_asm_flags "$@"
973     name="$1"
974     code="$2"
975     flags=''
976     shift 2
977     while [ "$1" != "" ]; do
978       append flags $1
979       shift
980     done;
981     disable $name
982     cat > $TMPC <<EOF
983 void foo(void){ __asm__ volatile($code); }
984 EOF
985     log_file $TMPC
986     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
987     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
988 }
989
990 check_insn(){
991     log check_insn "$@"
992     check_inline_asm ${1}_inline "\"$2\""
993     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
994 }
995
996 check_x86asm(){
997     log check_x86asm "$@"
998     echo "$1" > $TMPS
999     log_file $TMPS
1000     shift 1
1001     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1002 }
1003
1004 ld_o(){
1005     eval printf '%s\\n' $LD_O
1006 }
1007
1008 check_ld(){
1009     log check_ld "$@"
1010     type=$1
1011     shift 1
1012     flags=$(filter_out '-l*|*.so' $@)
1013     libs=$(filter '-l*|*.so' $@)
1014     check_$type $($cflags_filter $flags) || return
1015     flags=$($ldflags_filter $flags)
1016     libs=$($ldflags_filter $libs)
1017     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1018 }
1019
1020 print_include(){
1021     hdr=$1
1022     test "${hdr%.h}" = "${hdr}" &&
1023         echo "#include $hdr"    ||
1024         echo "#include <$hdr>"
1025 }
1026
1027 check_code(){
1028     log check_code "$@"
1029     check=$1
1030     headers=$2
1031     code=$3
1032     shift 3
1033     {
1034         for hdr in $headers; do
1035             print_include $hdr
1036         done
1037         echo "int main(void) { $code; return 0; }"
1038     } | check_$check "$@"
1039 }
1040
1041 check_cppflags(){
1042     log check_cppflags "$@"
1043     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1044 #include <stdlib.h>
1045 EOF
1046 }
1047
1048 test_cflags(){
1049     log test_cflags "$@"
1050     set -- $($cflags_filter "$@")
1051     check_cc "$@" <<EOF
1052 int x;
1053 EOF
1054 }
1055
1056 check_cflags(){
1057     log check_cflags "$@"
1058     test_cflags "$@" && add_cflags "$@"
1059 }
1060
1061 check_cxxflags(){
1062     log check_cxxflags "$@"
1063     set -- $($cflags_filter "$@")
1064     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1065 int x;
1066 EOF
1067 }
1068
1069 test_objcflags(){
1070     log test_objcflags "$@"
1071     set -- $($objcflags_filter "$@")
1072     check_objcc "$@" <<EOF
1073 int x;
1074 EOF
1075 }
1076
1077 check_objcflags(){
1078     log check_objcflags "$@"
1079     test_objcflags "$@" && add_objcflags "$@"
1080 }
1081
1082 test_ldflags(){
1083     log test_ldflags "$@"
1084     check_ld "cc" "$@" <<EOF
1085 int main(void){ return 0; }
1086 EOF
1087 }
1088
1089 check_ldflags(){
1090     log check_ldflags "$@"
1091     test_ldflags "$@" && add_ldflags "$@"
1092 }
1093
1094 test_stripflags(){
1095     log test_stripflags "$@"
1096     # call check_cc to get a fresh TMPO
1097     check_cc <<EOF
1098 int main(void) { return 0; }
1099 EOF
1100     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1101 }
1102
1103 check_stripflags(){
1104     log check_stripflags "$@"
1105     test_stripflags "$@" && add_stripflags "$@"
1106 }
1107
1108 check_header(){
1109     log check_header "$@"
1110     header=$1
1111     shift
1112     disable_safe $header
1113     check_cpp "$@" <<EOF && enable_safe $header
1114 #include <$header>
1115 int x;
1116 EOF
1117 }
1118
1119 check_header_objcc(){
1120     log check_header_objcc "$@"
1121     rm -f -- "$TMPO"
1122     header=$1
1123     shift
1124     disable_safe $header
1125     {
1126        echo "#include <$header>"
1127        echo "int main(void) { return 0; }"
1128     } | check_objcc && check_stat "$TMPO" && enable_safe $header
1129 }
1130
1131 check_apple_framework(){
1132     log check_apple_framework "$@"
1133     framework="$1"
1134     name="$(tolower $framework)"
1135     header="${framework}/${framework}.h"
1136     disable $name
1137     check_header_objcc $header &&
1138         enable $name && eval ${name}_extralibs='"-framework $framework"'
1139 }
1140
1141 check_func(){
1142     log check_func "$@"
1143     func=$1
1144     shift
1145     disable $func
1146     check_ld "cc" "$@" <<EOF && enable $func
1147 extern int $func();
1148 int main(void){ $func(); }
1149 EOF
1150 }
1151
1152 check_complexfunc(){
1153     log check_complexfunc "$@"
1154     func=$1
1155     narg=$2
1156     shift 2
1157     test $narg = 2 && args="f, g" || args="f * I"
1158     disable $func
1159     check_ld "cc" "$@" <<EOF && enable $func
1160 #include <complex.h>
1161 #include <math.h>
1162 float foo(complex float f, complex float g) { return $func($args); }
1163 int main(void){ return (int) foo; }
1164 EOF
1165 }
1166
1167 check_mathfunc(){
1168     log check_mathfunc "$@"
1169     func=$1
1170     narg=$2
1171     shift 2
1172     test $narg = 2 && args="f, g" || args="f"
1173     disable $func
1174     check_ld "cc" "$@" <<EOF && enable $func
1175 #include <math.h>
1176 float foo(float f, float g) { return $func($args); }
1177 int main(void){ return (int) foo; }
1178 EOF
1179 }
1180
1181 check_func_headers(){
1182     log check_func_headers "$@"
1183     headers=$1
1184     funcs=$2
1185     shift 2
1186     {
1187         for hdr in $headers; do
1188             print_include $hdr
1189         done
1190         echo "#include <stdint.h>"
1191         for func in $funcs; do
1192             echo "long check_$func(void) { return (long) $func; }"
1193         done
1194         echo "int main(void) { int ret = 0;"
1195         # LTO could optimize out the test functions without this
1196         for func in $funcs; do
1197             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1198         done
1199         echo "return ret; }"
1200     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1201 }
1202
1203 check_class_headers_cpp(){
1204     log check_class_headers_cpp "$@"
1205     headers=$1
1206     classes=$2
1207     shift 2
1208     {
1209         for hdr in $headers; do
1210             echo "#include <$hdr>"
1211         done
1212         echo "int main(void) { "
1213         i=1
1214         for class in $classes; do
1215             echo "$class obj$i;"
1216             i=$(expr $i + 1)
1217         done
1218         echo "return 0; }"
1219     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1220 }
1221
1222 check_cpp_condition(){
1223     log check_cpp_condition "$@"
1224     header=$1
1225     condition=$2
1226     shift 2
1227     check_cpp "$@" <<EOF
1228 #include <$header>
1229 #if !($condition)
1230 #error "unsatisfied condition: $condition"
1231 #endif
1232 EOF
1233 }
1234
1235 test_cflags_cc(){
1236     log test_cflags_cc "$@"
1237     flags=$1
1238     header=$2
1239     condition=$3
1240     shift 3
1241     set -- $($cflags_filter "$flags")
1242     check_cc "$@" <<EOF
1243 #include <$header>
1244 #if !($condition)
1245 #error "unsatisfied condition: $condition"
1246 #endif
1247 EOF
1248 }
1249
1250 check_lib(){
1251     log check_lib "$@"
1252     name="$1"
1253     headers="$2"
1254     funcs="$3"
1255     shift 3
1256     disable $name
1257     check_func_headers "$headers" "$funcs" "$@" &&
1258         enable $name && eval ${name}_extralibs="\$@"
1259 }
1260
1261 check_lib_cpp(){
1262     log check_lib_cpp "$@"
1263     name="$1"
1264     headers="$2"
1265     classes="$3"
1266     shift 3
1267     disable $name
1268     check_class_headers_cpp "$headers" "$classes" "$@" &&
1269         enable $name && eval ${name}_extralibs="\$@"
1270 }
1271
1272 check_pkg_config(){
1273     log check_pkg_config "$@"
1274     name="$1"
1275     pkg_version="$2"
1276     pkg="${2%% *}"
1277     headers="$3"
1278     funcs="$4"
1279     shift 4
1280     disable $name
1281     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1282     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1283     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1284     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1285         enable $name &&
1286         set_safe "${name}_cflags"    $pkg_cflags &&
1287         set_safe "${name}_extralibs" $pkg_libs
1288 }
1289
1290 check_exec(){
1291     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1292 }
1293
1294 check_exec_crash(){
1295     log check_exec_crash "$@"
1296     code=$(cat)
1297
1298     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1299     # are safe but may not be available everywhere.  Thus we use
1300     # raise(SIGTERM) instead.  The check is run in a subshell so we
1301     # can redirect the "Terminated" message from the shell.  SIGBUS
1302     # is not defined by standard C so it is used conditionally.
1303
1304     (check_exec "$@") >> $logfile 2>&1 <<EOF
1305 #include <signal.h>
1306 static void sighandler(int sig){
1307     raise(SIGTERM);
1308 }
1309 int foo(void){
1310     $code
1311 }
1312 int (*func_ptr)(void) = foo;
1313 int main(void){
1314     signal(SIGILL, sighandler);
1315     signal(SIGFPE, sighandler);
1316     signal(SIGSEGV, sighandler);
1317 #ifdef SIGBUS
1318     signal(SIGBUS, sighandler);
1319 #endif
1320     return func_ptr();
1321 }
1322 EOF
1323 }
1324
1325 check_type(){
1326     log check_type "$@"
1327     headers=$1
1328     type=$2
1329     shift 2
1330     disable_safe "$type"
1331     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1332 }
1333
1334 check_struct(){
1335     log check_struct "$@"
1336     headers=$1
1337     struct=$2
1338     member=$3
1339     shift 3
1340     disable_safe "${struct}_${member}"
1341     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1342         enable_safe "${struct}_${member}"
1343 }
1344
1345 check_builtin(){
1346     log check_builtin "$@"
1347     name=$1
1348     headers=$2
1349     builtin=$3
1350     shift 3
1351     disable "$name"
1352     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1353 }
1354
1355 check_compile_assert(){
1356     log check_compile_assert "$@"
1357     name=$1
1358     headers=$2
1359     condition=$3
1360     shift 3
1361     disable "$name"
1362     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1363 }
1364
1365 require(){
1366     log require "$@"
1367     name_version="$1"
1368     name="${1%% *}"
1369     headers="$2"
1370     func="$3"
1371     shift 3
1372     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1373 }
1374
1375 require_cpp(){
1376     name="$1"
1377     headers="$2"
1378     classes="$3"
1379     shift 3
1380     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1381 }
1382
1383 require_header(){
1384     log require "$@"
1385     header="$1"
1386     shift
1387     check_header "$header" "$@" || die "ERROR: $header header not found"
1388 }
1389
1390 require_cpp_condition(){
1391     log require "$@"
1392     header="$1"
1393     condition="$2"
1394     shift 2
1395     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1396 }
1397
1398 use_pkg_config(){
1399     log use_pkg_config "$@"
1400     name="$1"
1401     check_pkg_config "$@" || return 1
1402     add_cflags    $(get_safe "${name}_cflags")
1403 }
1404
1405 require_pkg_config(){
1406     log require_pkg_config "$@"
1407     pkg_version="$2"
1408     use_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1409 }
1410
1411 hostcc_e(){
1412     eval printf '%s\\n' $HOSTCC_E
1413 }
1414
1415 hostcc_o(){
1416     eval printf '%s\\n' $HOSTCC_O
1417 }
1418
1419 check_host_cc(){
1420     log check_host_cc "$@"
1421     cat > $TMPC
1422     log_file $TMPC
1423     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1424 }
1425
1426 check_host_cpp(){
1427     log check_host_cpp "$@"
1428     cat > $TMPC
1429     log_file $TMPC
1430     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1431 }
1432
1433 check_host_cppflags(){
1434     log check_host_cppflags "$@"
1435     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1436 #include <stdlib.h>
1437 EOF
1438 }
1439
1440 check_host_cflags(){
1441     log check_host_cflags "$@"
1442     set -- $($host_cflags_filter "$@")
1443     check_host_cc "$@" <<EOF && append host_cflags "$@"
1444 int x;
1445 EOF
1446 }
1447
1448 check_host_cpp_condition(){
1449     log check_host_cpp_condition "$@"
1450     header=$1
1451     condition=$2
1452     shift 2
1453     check_host_cpp "$@" <<EOF
1454 #include <$header>
1455 #if !($condition)
1456 #error "unsatisfied condition: $condition"
1457 #endif
1458 EOF
1459 }
1460
1461 cp_if_changed(){
1462     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1463     mkdir -p "$(dirname $2)"
1464     cp -f "$1" "$2"
1465 }
1466
1467 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1468 # system-dependent things.
1469
1470 AVCODEC_COMPONENTS="
1471     bsfs
1472     decoders
1473     encoders
1474     hwaccels
1475     parsers
1476 "
1477
1478 AVDEVICE_COMPONENTS="
1479     indevs
1480     outdevs
1481 "
1482
1483 AVFILTER_COMPONENTS="
1484     filters
1485 "
1486
1487 AVFORMAT_COMPONENTS="
1488     demuxers
1489     muxers
1490     protocols
1491 "
1492
1493 AVRESAMPLE_COMPONENTS=""
1494
1495 AVUTIL_COMPONENTS=""
1496
1497 COMPONENT_LIST="
1498     $AVCODEC_COMPONENTS
1499     $AVDEVICE_COMPONENTS
1500     $AVFILTER_COMPONENTS
1501     $AVFORMAT_COMPONENTS
1502     $AVRESAMPLE_COMPONENTS
1503     $AVUTIL_COMPONENTS
1504 "
1505
1506 EXAMPLE_LIST="
1507     avio_dir_cmd_example
1508     avio_reading_example
1509     decode_audio_example
1510     decode_video_example
1511     demuxing_decoding_example
1512     encode_audio_example
1513     encode_video_example
1514     extract_mvs_example
1515     filter_audio_example
1516     filtering_audio_example
1517     filtering_video_example
1518     http_multiclient_example
1519     hw_decode_example
1520     metadata_example
1521     muxing_example
1522     qsvdec_example
1523     remuxing_example
1524     resampling_audio_example
1525     scaling_video_example
1526     transcode_aac_example
1527     transcoding_example
1528 "
1529
1530 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1531     alsa
1532     appkit
1533     avfoundation
1534     bzlib
1535     coreimage
1536     iconv
1537     jack
1538     libxcb
1539     libxcb_shm
1540     libxcb_shape
1541     libxcb_xfixes
1542     lzma
1543     schannel
1544     sdl2
1545     securetransport
1546     sndio
1547     xlib
1548     zlib
1549 "
1550
1551 EXTERNAL_LIBRARY_GPL_LIST="
1552     avisynth
1553     frei0r
1554     libcdio
1555     librubberband
1556     libvidstab
1557     libx264
1558     libx265
1559     libxavs
1560     libxvid
1561 "
1562
1563 EXTERNAL_LIBRARY_NONFREE_LIST="
1564     decklink
1565     libndi_newtek
1566     libfdk_aac
1567     openssl
1568 "
1569
1570 EXTERNAL_LIBRARY_VERSION3_LIST="
1571     gmp
1572     libopencore_amrnb
1573     libopencore_amrwb
1574     libvo_amrwbenc
1575     rkmpp
1576 "
1577
1578 EXTERNAL_LIBRARY_GPLV3_LIST="
1579     libsmbclient
1580 "
1581
1582 EXTERNAL_LIBRARY_LIST="
1583     $EXTERNAL_LIBRARY_GPL_LIST
1584     $EXTERNAL_LIBRARY_NONFREE_LIST
1585     $EXTERNAL_LIBRARY_VERSION3_LIST
1586     $EXTERNAL_LIBRARY_GPLV3_LIST
1587     chromaprint
1588     gcrypt
1589     gnutls
1590     jni
1591     ladspa
1592     libass
1593     libbluray
1594     libbs2b
1595     libcaca
1596     libcelt
1597     libdc1394
1598     libdrm
1599     libflite
1600     libfontconfig
1601     libfreetype
1602     libfribidi
1603     libgme
1604     libgsm
1605     libiec61883
1606     libilbc
1607     libkvazaar
1608     libmodplug
1609     libmp3lame
1610     libmysofa
1611     libopencv
1612     libopenh264
1613     libopenjpeg
1614     libopenmpt
1615     libopus
1616     libpulse
1617     librsvg
1618     librtmp
1619     libshine
1620     libsmbclient
1621     libsnappy
1622     libsoxr
1623     libspeex
1624     libssh
1625     libtesseract
1626     libtheora
1627     libtwolame
1628     libv4l2
1629     libvmaf
1630     libvorbis
1631     libvpx
1632     libwavpack
1633     libwebp
1634     libxml2
1635     libzimg
1636     libzmq
1637     libzvbi
1638     mediacodec
1639     openal
1640     opencl
1641     opengl
1642 "
1643
1644 HWACCEL_AUTODETECT_LIBRARY_LIST="
1645     audiotoolbox
1646     crystalhd
1647     cuda
1648     cuvid
1649     d3d11va
1650     dxva2
1651     nvenc
1652     vaapi
1653     vda
1654     vdpau
1655     videotoolbox
1656     v4l2_m2m
1657     xvmc
1658 "
1659
1660 # catchall list of things that require external libs to link
1661 EXTRALIBS_LIST="
1662     cpu_init
1663     cws2fws
1664 "
1665
1666 HWACCEL_LIBRARY_NONFREE_LIST="
1667     cuda_sdk
1668     libnpp
1669 "
1670
1671 HWACCEL_LIBRARY_LIST="
1672     $HWACCEL_LIBRARY_NONFREE_LIST
1673     libmfx
1674     mmal
1675     omx
1676 "
1677
1678 DOCUMENT_LIST="
1679     doc
1680     htmlpages
1681     manpages
1682     podpages
1683     txtpages
1684 "
1685
1686 FEATURE_LIST="
1687     ftrapv
1688     gray
1689     hardcoded_tables
1690     omx_rpi
1691     runtime_cpudetect
1692     safe_bitstream_reader
1693     shared
1694     small
1695     static
1696     swscale_alpha
1697 "
1698
1699 LIBRARY_LIST="
1700     avcodec
1701     avdevice
1702     avfilter
1703     avformat
1704     avresample
1705     avutil
1706     postproc
1707     swresample
1708     swscale
1709 "
1710
1711 LICENSE_LIST="
1712     gpl
1713     nonfree
1714     version3
1715 "
1716
1717 PROGRAM_LIST="
1718     ffplay
1719     ffprobe
1720     ffserver
1721     ffmpeg
1722 "
1723
1724 SUBSYSTEM_LIST="
1725     dct
1726     dwt
1727     error_resilience
1728     faan
1729     fast_unaligned
1730     fft
1731     lsp
1732     lzo
1733     mdct
1734     pixelutils
1735     network
1736     rdft
1737 "
1738
1739 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1740 CONFIG_LIST="
1741     $DOCUMENT_LIST
1742     $EXAMPLE_LIST
1743     $EXTERNAL_LIBRARY_LIST
1744     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1745     $HWACCEL_LIBRARY_LIST
1746     $HWACCEL_AUTODETECT_LIBRARY_LIST
1747     $FEATURE_LIST
1748     $LICENSE_LIST
1749     $LIBRARY_LIST
1750     $PROGRAM_LIST
1751     $SUBSYSTEM_LIST
1752     autodetect
1753     fontconfig
1754     linux_perf
1755     memory_poisoning
1756     neon_clobber_test
1757     ossfuzz
1758     pic
1759     thumb
1760     valgrind_backtrace
1761     xmm_clobber_test
1762     $COMPONENT_LIST
1763 "
1764
1765 THREADS_LIST="
1766     pthreads
1767     os2threads
1768     w32threads
1769 "
1770
1771 ATOMICS_LIST="
1772     atomics_gcc
1773     atomics_suncc
1774     atomics_win32
1775 "
1776
1777 AUTODETECT_LIBS="
1778     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1779     $HWACCEL_AUTODETECT_LIBRARY_LIST
1780     $THREADS_LIST
1781 "
1782
1783 ARCH_LIST="
1784     aarch64
1785     alpha
1786     arm
1787     avr32
1788     avr32_ap
1789     avr32_uc
1790     bfin
1791     ia64
1792     m68k
1793     mips
1794     mips64
1795     parisc
1796     ppc
1797     ppc64
1798     s390
1799     sh4
1800     sparc
1801     sparc64
1802     tilegx
1803     tilepro
1804     tomi
1805     x86
1806     x86_32
1807     x86_64
1808 "
1809
1810 ARCH_EXT_LIST_ARM="
1811     armv5te
1812     armv6
1813     armv6t2
1814     armv8
1815     neon
1816     vfp
1817     vfpv3
1818     setend
1819 "
1820
1821 ARCH_EXT_LIST_MIPS="
1822     mipsfpu
1823     mips32r2
1824     mips32r5
1825     mips64r2
1826     mips32r6
1827     mips64r6
1828     mipsdsp
1829     mipsdspr2
1830     msa
1831 "
1832
1833 ARCH_EXT_LIST_LOONGSON="
1834     loongson2
1835     loongson3
1836     mmi
1837 "
1838
1839 ARCH_EXT_LIST_X86_SIMD="
1840     aesni
1841     amd3dnow
1842     amd3dnowext
1843     avx
1844     avx2
1845     fma3
1846     fma4
1847     mmx
1848     mmxext
1849     sse
1850     sse2
1851     sse3
1852     sse4
1853     sse42
1854     ssse3
1855     xop
1856 "
1857
1858 ARCH_EXT_LIST_PPC="
1859     altivec
1860     dcbzl
1861     ldbrx
1862     power8
1863     ppc4xx
1864     vsx
1865 "
1866
1867 ARCH_EXT_LIST_X86="
1868     $ARCH_EXT_LIST_X86_SIMD
1869     cpunop
1870     i686
1871 "
1872
1873 ARCH_EXT_LIST="
1874     $ARCH_EXT_LIST_ARM
1875     $ARCH_EXT_LIST_PPC
1876     $ARCH_EXT_LIST_X86
1877     $ARCH_EXT_LIST_MIPS
1878     $ARCH_EXT_LIST_LOONGSON
1879 "
1880
1881 ARCH_FEATURES="
1882     aligned_stack
1883     fast_64bit
1884     fast_clz
1885     fast_cmov
1886     local_aligned_8
1887     local_aligned_16
1888     local_aligned_32
1889     simd_align_16
1890     simd_align_32
1891 "
1892
1893 BUILTIN_LIST="
1894     atomic_cas_ptr
1895     machine_rw_barrier
1896     MemoryBarrier
1897     mm_empty
1898     rdtsc
1899     sarestart
1900     sem_timedwait
1901     sync_val_compare_and_swap
1902 "
1903 HAVE_LIST_CMDLINE="
1904     inline_asm
1905     symver
1906     x86asm
1907 "
1908
1909 HAVE_LIST_PUB="
1910     bigendian
1911     fast_unaligned
1912 "
1913
1914 HEADERS_LIST="
1915     altivec_h
1916     arpa_inet_h
1917     asm_types_h
1918     cdio_paranoia_h
1919     cdio_paranoia_paranoia_h
1920     cuda_h
1921     d3d11_h
1922     dispatch_dispatch_h
1923     dev_bktr_ioctl_bt848_h
1924     dev_bktr_ioctl_meteor_h
1925     dev_ic_bt8xx_h
1926     dev_video_bktr_ioctl_bt848_h
1927     dev_video_meteor_ioctl_meteor_h
1928     direct_h
1929     dirent_h
1930     dlfcn_h
1931     dxgidebug_h
1932     dxva_h
1933     ES2_gl_h
1934     gsm_h
1935     io_h
1936     mach_mach_time_h
1937     machine_ioctl_bt848_h
1938     machine_ioctl_meteor_h
1939     malloc_h
1940     opencv2_core_core_c_h
1941     openjpeg_2_3_openjpeg_h
1942     openjpeg_2_2_openjpeg_h
1943     openjpeg_2_1_openjpeg_h
1944     openjpeg_2_0_openjpeg_h
1945     openjpeg_1_5_openjpeg_h
1946     OpenGL_gl3_h
1947     poll_h
1948     soundcard_h
1949     stdatomic_h
1950     sys_mman_h
1951     sys_param_h
1952     sys_resource_h
1953     sys_select_h
1954     sys_soundcard_h
1955     sys_time_h
1956     sys_un_h
1957     sys_videoio_h
1958     termios_h
1959     udplite_h
1960     unistd_h
1961     valgrind_valgrind_h
1962     windows_h
1963     winsock2_h
1964 "
1965
1966 INTRINSICS_LIST="
1967     intrinsics_neon
1968 "
1969
1970 COMPLEX_FUNCS="
1971     cabs
1972     cexp
1973 "
1974
1975 MATH_FUNCS="
1976     atanf
1977     atan2f
1978     cbrt
1979     cbrtf
1980     copysign
1981     cosf
1982     erf
1983     exp2
1984     exp2f
1985     expf
1986     hypot
1987     isfinite
1988     isinf
1989     isnan
1990     ldexpf
1991     llrint
1992     llrintf
1993     log2
1994     log2f
1995     log10f
1996     lrint
1997     lrintf
1998     powf
1999     rint
2000     round
2001     roundf
2002     sinf
2003     trunc
2004     truncf
2005 "
2006
2007 SYSTEM_FUNCS="
2008     access
2009     aligned_malloc
2010     arc4random
2011     clock_gettime
2012     closesocket
2013     CommandLineToArgvW
2014     CoTaskMemFree
2015     CryptGenRandom
2016     fcntl
2017     flt_lim
2018     fork
2019     getaddrinfo
2020     gethrtime
2021     getopt
2022     GetProcessAffinityMask
2023     GetProcessMemoryInfo
2024     GetProcessTimes
2025     getrusage
2026     GetSystemTimeAsFileTime
2027     gettimeofday
2028     glob
2029     glXGetProcAddress
2030     gmtime_r
2031     inet_aton
2032     isatty
2033     jack_port_get_latency_range
2034     kbhit
2035     LoadLibrary
2036     localtime_r
2037     lstat
2038     lzo1x_999_compress
2039     mach_absolute_time
2040     MapViewOfFile
2041     memalign
2042     mkstemp
2043     mmap
2044     mprotect
2045     nanosleep
2046     PeekNamedPipe
2047     posix_memalign
2048     pthread_cancel
2049     sched_getaffinity
2050     SetConsoleTextAttribute
2051     SetConsoleCtrlHandler
2052     setmode
2053     setrlimit
2054     Sleep
2055     strerror_r
2056     sysconf
2057     sysctl
2058     usleep
2059     UTGetOSTypeFromString
2060     VirtualAlloc
2061     wglGetProcAddress
2062 "
2063
2064 TOOLCHAIN_FEATURES="
2065     as_dn_directive
2066     as_fpu_directive
2067     as_func
2068     as_object_arch
2069     asm_mod_q
2070     attribute_may_alias
2071     attribute_packed
2072     blocks_extension
2073     ebp_available
2074     ebx_available
2075     gnu_as
2076     gnu_windres
2077     ibm_asm
2078     inline_asm_direct_symbol_refs
2079     inline_asm_labels
2080     inline_asm_nonlocal_labels
2081     pragma_deprecated
2082     rsync_contimeout
2083     symver_asm_label
2084     symver_gnu_asm
2085     vfp_args
2086     xform_asm
2087     xmm_clobbers
2088 "
2089
2090 TYPES_LIST="
2091     CONDITION_VARIABLE_Ptr
2092     kCMVideoCodecType_HEVC
2093     socklen_t
2094     struct_addrinfo
2095     struct_group_source_req
2096     struct_ip_mreq_source
2097     struct_ipv6_mreq
2098     struct_msghdr_msg_flags
2099     struct_pollfd
2100     struct_rusage_ru_maxrss
2101     struct_sctp_event_subscribe
2102     struct_sockaddr_in6
2103     struct_sockaddr_sa_len
2104     struct_sockaddr_storage
2105     struct_stat_st_mtim_tv_nsec
2106     struct_v4l2_frmivalenum_discrete
2107 "
2108
2109 HAVE_LIST="
2110     $ARCH_EXT_LIST
2111     $(add_suffix _external $ARCH_EXT_LIST)
2112     $(add_suffix _inline   $ARCH_EXT_LIST)
2113     $ARCH_FEATURES
2114     $ATOMICS_LIST
2115     $BUILTIN_LIST
2116     $COMPLEX_FUNCS
2117     $HAVE_LIST_CMDLINE
2118     $HAVE_LIST_PUB
2119     $HEADERS_LIST
2120     $INTRINSICS_LIST
2121     $MATH_FUNCS
2122     $SYSTEM_FUNCS
2123     $THREADS_LIST
2124     $TOOLCHAIN_FEATURES
2125     $TYPES_LIST
2126     atomics_native
2127     dos_paths
2128     libc_msvcrt
2129     makeinfo
2130     makeinfo_html
2131     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2132     perl
2133     pod2man
2134     section_data_rel_ro
2135     texi2html
2136     threads
2137     uwp
2138     vaapi_drm
2139     vaapi_x11
2140     vdpau_x11
2141     winrt
2142 "
2143
2144 # options emitted with CONFIG_ prefix but not available on the command line
2145 CONFIG_EXTRA="
2146     aandcttables
2147     ac3dsp
2148     audio_frame_queue
2149     audiodsp
2150     blockdsp
2151     bswapdsp
2152     cabac
2153     cbs
2154     cbs_h264
2155     cbs_h265
2156     dirac_parse
2157     dvprofile
2158     exif
2159     faandct
2160     faanidct
2161     fdctdsp
2162     flacdsp
2163     fmtconvert
2164     frame_thread_encoder
2165     g722dsp
2166     golomb
2167     gplv3
2168     h263dsp
2169     h264chroma
2170     h264dsp
2171     h264parse
2172     h264pred
2173     h264qpel
2174     hevcparse
2175     hpeldsp
2176     huffman
2177     huffyuvdsp
2178     huffyuvencdsp
2179     idctdsp
2180     iirfilter
2181     mdct15
2182     intrax8
2183     iso_media
2184     ividsp
2185     jpegtables
2186     lgplv3
2187     libx262
2188     llauddsp
2189     llviddsp
2190     llvidencdsp
2191     lpc
2192     lzf
2193     me_cmp
2194     mpeg_er
2195     mpegaudio
2196     mpegaudiodsp
2197     mpegaudioheader
2198     mpegvideo
2199     mpegvideoenc
2200     mss34dsp
2201     pixblockdsp
2202     qpeldsp
2203     qsv
2204     qsvdec
2205     qsvenc
2206     rangecoder
2207     riffdec
2208     riffenc
2209     rtpdec
2210     rtpenc_chain
2211     rv34dsp
2212     sinewin
2213     snappy
2214     srtp
2215     startcode
2216     texturedsp
2217     texturedspenc
2218     tpeldsp
2219     vaapi_1
2220     vaapi_encode
2221     vc1dsp
2222     videodsp
2223     vp3dsp
2224     vp56dsp
2225     vp8dsp
2226     wma_freqs
2227     wmv2dsp
2228 "
2229
2230 CMDLINE_SELECT="
2231     $ARCH_EXT_LIST
2232     $CONFIG_LIST
2233     $HAVE_LIST_CMDLINE
2234     $THREADS_LIST
2235     asm
2236     cross_compile
2237     debug
2238     extra_warnings
2239     logging
2240     lto
2241     optimizations
2242     rpath
2243     stripping
2244 "
2245
2246 PATHS_LIST="
2247     bindir
2248     datadir
2249     docdir
2250     incdir
2251     libdir
2252     mandir
2253     pkgconfigdir
2254     prefix
2255     shlibdir
2256     install_name_dir
2257 "
2258
2259 CMDLINE_SET="
2260     $PATHS_LIST
2261     ar
2262     arch
2263     as
2264     assert_level
2265     build_suffix
2266     cc
2267     objcc
2268     cpu
2269     cross_prefix
2270     custom_allocator
2271     cxx
2272     dep_cc
2273     doxygen
2274     env
2275     extra_version
2276     gas
2277     host_cc
2278     host_cflags
2279     host_extralibs
2280     host_ld
2281     host_ldflags
2282     host_os
2283     ignore_tests
2284     install
2285     ld
2286     ln_s
2287     logfile
2288     malloc_prefix
2289     nm
2290     optflags
2291     nvccflags
2292     pkg_config
2293     pkg_config_flags
2294     progs_suffix
2295     random_seed
2296     ranlib
2297     samples
2298     strip
2299     sws_max_filter_size
2300     sysinclude
2301     sysroot
2302     target_exec
2303     target_os
2304     target_path
2305     target_samples
2306     tempprefix
2307     toolchain
2308     valgrind
2309     x86asmexe
2310 "
2311
2312 CMDLINE_APPEND="
2313     extra_cflags
2314     extra_cxxflags
2315     extra_objcflags
2316     host_cppflags
2317 "
2318
2319 # code dependency declarations
2320
2321 # architecture extensions
2322
2323 armv5te_deps="arm"
2324 armv6_deps="arm"
2325 armv6t2_deps="arm"
2326 armv8_deps="aarch64"
2327 neon_deps_any="aarch64 arm"
2328 intrinsics_neon_deps="neon"
2329 vfp_deps_any="aarch64 arm"
2330 vfpv3_deps="vfp"
2331 setend_deps="arm"
2332
2333 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2334
2335 loongson2_deps="mips"
2336 loongson3_deps="mips"
2337 mipsfpu_deps="mips"
2338 mipsdsp_deps="mips"
2339 mipsdspr2_deps="mips"
2340 mips32r2_deps="mips"
2341 mips32r5_deps="mips"
2342 mips32r6_deps="mips"
2343 mips64r2_deps="mips"
2344 mips64r6_deps="mips"
2345 msa_deps="mipsfpu"
2346 mmi_deps="mips"
2347
2348 altivec_deps="ppc"
2349 dcbzl_deps="ppc"
2350 ldbrx_deps="ppc"
2351 ppc4xx_deps="ppc"
2352 vsx_deps="altivec"
2353 power8_deps="vsx"
2354
2355 cpunop_deps="i686"
2356 x86_64_select="i686"
2357 x86_64_suggest="fast_cmov"
2358
2359 amd3dnow_deps="mmx"
2360 amd3dnowext_deps="amd3dnow"
2361 i686_deps="x86"
2362 mmx_deps="x86"
2363 mmxext_deps="mmx"
2364 sse_deps="mmxext"
2365 sse2_deps="sse"
2366 sse3_deps="sse2"
2367 ssse3_deps="sse3"
2368 sse4_deps="ssse3"
2369 sse42_deps="sse4"
2370 aesni_deps="sse42"
2371 avx_deps="sse42"
2372 xop_deps="avx"
2373 fma3_deps="avx"
2374 fma4_deps="avx"
2375 avx2_deps="avx"
2376
2377 mmx_external_deps="x86asm"
2378 mmx_inline_deps="inline_asm"
2379 mmx_suggest="mmx_external mmx_inline"
2380
2381 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2382     eval dep=\$${ext}_deps
2383     eval ${ext}_external_deps='"${dep}_external"'
2384     eval ${ext}_inline_deps='"${dep}_inline"'
2385     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2386 done
2387
2388 aligned_stack_if_any="aarch64 ppc x86"
2389 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2390 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2391 fast_unaligned_if_any="aarch64 ppc x86"
2392 simd_align_16_if_any="altivec neon sse"
2393 simd_align_32_if_any="avx"
2394
2395 # system capabilities
2396 symver_if_any="symver_asm_label symver_gnu_asm"
2397 valgrind_backtrace_conflict="optimizations"
2398 valgrind_backtrace_deps="valgrind_valgrind_h"
2399
2400 # threading support
2401 atomics_gcc_if="sync_val_compare_and_swap"
2402 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2403 atomics_win32_if="MemoryBarrier"
2404 atomics_native_if_any="$ATOMICS_LIST"
2405 w32threads_deps="atomics_native"
2406 threads_if_any="$THREADS_LIST"
2407
2408 # subsystems
2409 cbs_h264_select="cbs golomb"
2410 cbs_h265_select="cbs golomb"
2411 dct_select="rdft"
2412 dirac_parse_select="golomb"
2413 error_resilience_select="me_cmp"
2414 faandct_deps="faan fdctdsp"
2415 faanidct_deps="faan idctdsp"
2416 h264dsp_select="startcode"
2417 hevcparse_select="golomb"
2418 frame_thread_encoder_deps="encoders threads"
2419 intrax8_select="blockdsp idctdsp"
2420 mdct_select="fft"
2421 mdct15_select="fft"
2422 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2423 mpeg_er_select="error_resilience"
2424 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2425 mpegaudiodsp_select="dct"
2426 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2427 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2428 vc1dsp_select="h264chroma qpeldsp startcode"
2429 rdft_select="fft"
2430
2431 # decoders / encoders
2432 aac_decoder_select="mdct15 mdct sinewin"
2433 aac_fixed_decoder_select="mdct sinewin"
2434 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2435 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2436 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2437 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2438 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2439 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2440 adpcm_g722_decoder_select="g722dsp"
2441 adpcm_g722_encoder_select="g722dsp"
2442 aic_decoder_select="golomb idctdsp"
2443 alac_encoder_select="lpc"
2444 als_decoder_select="bswapdsp"
2445 amrnb_decoder_select="lsp"
2446 amrwb_decoder_select="lsp"
2447 amv_decoder_select="sp5x_decoder exif"
2448 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2449 ape_decoder_select="bswapdsp llauddsp"
2450 apng_decoder_select="zlib"
2451 apng_encoder_select="llvidencdsp zlib"
2452 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2453 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2454 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2455 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2456 atrac1_decoder_select="mdct sinewin"
2457 atrac3_decoder_select="mdct"
2458 atrac3p_decoder_select="mdct sinewin"
2459 avrn_decoder_select="exif jpegtables"
2460 bink_decoder_select="blockdsp hpeldsp"
2461 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2462 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2463 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2464 clearvideo_decoder_select="idctdsp"
2465 cllc_decoder_select="bswapdsp"
2466 comfortnoise_encoder_select="lpc"
2467 cook_decoder_select="audiodsp mdct sinewin"
2468 cscd_decoder_select="lzo"
2469 cscd_decoder_suggest="zlib"
2470 dca_decoder_select="mdct"
2471 dds_decoder_select="texturedsp"
2472 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2473 dnxhd_decoder_select="blockdsp idctdsp"
2474 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2475 dolby_e_decoder_select="mdct"
2476 dvvideo_decoder_select="dvprofile idctdsp"
2477 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2478 dxa_decoder_select="zlib"
2479 dxv_decoder_select="lzf texturedsp"
2480 eac3_decoder_select="ac3_decoder"
2481 eac3_encoder_select="ac3_encoder"
2482 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2483 eatgq_decoder_select="aandcttables"
2484 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2485 exr_decoder_select="zlib"
2486 ffv1_decoder_select="rangecoder"
2487 ffv1_encoder_select="rangecoder"
2488 ffvhuff_decoder_select="huffyuv_decoder"
2489 ffvhuff_encoder_select="huffyuv_encoder"
2490 fic_decoder_select="golomb"
2491 flac_decoder_select="flacdsp"
2492 flac_encoder_select="bswapdsp flacdsp lpc"
2493 flashsv2_decoder_select="zlib"
2494 flashsv2_encoder_select="zlib"
2495 flashsv_decoder_select="zlib"
2496 flashsv_encoder_select="zlib"
2497 flv_decoder_select="h263_decoder"
2498 flv_encoder_select="h263_encoder"
2499 fourxm_decoder_select="blockdsp bswapdsp"
2500 fraps_decoder_select="bswapdsp huffman"
2501 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2502 g729_decoder_select="audiodsp"
2503 h261_decoder_select="mpegvideo"
2504 h261_encoder_select="aandcttables mpegvideoenc"
2505 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2506 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2507 h263i_decoder_select="h263_decoder"
2508 h263p_decoder_select="h263_decoder"
2509 h263p_encoder_select="h263_encoder"
2510 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2511 h264_decoder_suggest="error_resilience"
2512 hap_decoder_select="snappy texturedsp"
2513 hap_encoder_deps="libsnappy"
2514 hap_encoder_select="texturedspenc"
2515 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2516 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2517 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2518 iac_decoder_select="imc_decoder"
2519 imc_decoder_select="bswapdsp fft mdct sinewin"
2520 indeo3_decoder_select="hpeldsp"
2521 indeo4_decoder_select="ividsp"
2522 indeo5_decoder_select="ividsp"
2523 interplay_video_decoder_select="hpeldsp"
2524 jpegls_decoder_select="mjpeg_decoder"
2525 jv_decoder_select="blockdsp"
2526 lagarith_decoder_select="llviddsp"
2527 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2528 magicyuv_decoder_select="llviddsp"
2529 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2530 metasound_decoder_select="lsp mdct sinewin"
2531 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2532 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2533 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2534 mjpegb_decoder_select="mjpeg_decoder"
2535 mlp_decoder_select="mlp_parser"
2536 mlp_encoder_select="lpc"
2537 motionpixels_decoder_select="bswapdsp"
2538 mp1_decoder_select="mpegaudio"
2539 mp1float_decoder_select="mpegaudio"
2540 mp2_decoder_select="mpegaudio"
2541 mp2float_decoder_select="mpegaudio"
2542 mp3_decoder_select="mpegaudio"
2543 mp3adu_decoder_select="mpegaudio"
2544 mp3adufloat_decoder_select="mpegaudio"
2545 mp3float_decoder_select="mpegaudio"
2546 mp3on4_decoder_select="mpegaudio"
2547 mp3on4float_decoder_select="mpegaudio"
2548 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2549 mpc8_decoder_select="mpegaudiodsp"
2550 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2551 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2552 mpegvideo_decoder_select="mpegvideo"
2553 mpeg1video_decoder_select="mpegvideo"
2554 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2555 mpeg2video_decoder_select="mpegvideo"
2556 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2557 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2558 mpeg4_encoder_select="h263_encoder"
2559 msa1_decoder_select="mss34dsp"
2560 mscc_decoder_select="zlib"
2561 msmpeg4v1_decoder_select="h263_decoder"
2562 msmpeg4v2_decoder_select="h263_decoder"
2563 msmpeg4v2_encoder_select="h263_encoder"
2564 msmpeg4v3_decoder_select="h263_decoder"
2565 msmpeg4v3_encoder_select="h263_encoder"
2566 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2567 mts2_decoder_select="mss34dsp"
2568 mxpeg_decoder_select="mjpeg_decoder"
2569 nellymoser_decoder_select="mdct sinewin"
2570 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2571 nuv_decoder_select="idctdsp lzo"
2572 on2avc_decoder_select="mdct"
2573 opus_decoder_deps="swresample"
2574 opus_decoder_select="mdct15"
2575 opus_encoder_select="audio_frame_queue mdct15"
2576 png_decoder_select="zlib"
2577 png_encoder_select="llvidencdsp zlib"
2578 prores_decoder_select="blockdsp idctdsp"
2579 prores_encoder_select="fdctdsp"
2580 qcelp_decoder_select="lsp"
2581 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2582 ra_144_decoder_select="audiodsp"
2583 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2584 ralf_decoder_select="golomb"
2585 rawvideo_decoder_select="bswapdsp"
2586 rscc_decoder_select="zlib"
2587 rtjpeg_decoder_select="me_cmp"
2588 rv10_decoder_select="h263_decoder"
2589 rv10_encoder_select="h263_encoder"
2590 rv20_decoder_select="h263_decoder"
2591 rv20_encoder_select="h263_encoder"
2592 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2593 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2594 screenpresso_decoder_select="zlib"
2595 shorten_decoder_select="bswapdsp"
2596 sipr_decoder_select="lsp"
2597 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2598 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2599 sonic_decoder_select="golomb rangecoder"
2600 sonic_encoder_select="golomb rangecoder"
2601 sonic_ls_encoder_select="golomb rangecoder"
2602 sp5x_decoder_select="mjpeg_decoder"
2603 srgc_decoder_select="zlib"
2604 svq1_decoder_select="hpeldsp"
2605 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2606 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2607 svq3_decoder_suggest="zlib"
2608 tak_decoder_select="audiodsp"
2609 tdsc_decoder_select="zlib mjpeg_decoder"
2610 theora_decoder_select="vp3_decoder"
2611 thp_decoder_select="mjpeg_decoder"
2612 tiff_decoder_suggest="zlib lzma"
2613 tiff_encoder_suggest="zlib"
2614 truehd_decoder_select="mlp_parser"
2615 truehd_encoder_select="lpc"
2616 truemotion2_decoder_select="bswapdsp"
2617 truespeech_decoder_select="bswapdsp"
2618 tscc_decoder_select="zlib"
2619 twinvq_decoder_select="mdct lsp sinewin"
2620 txd_decoder_select="texturedsp"
2621 utvideo_decoder_select="bswapdsp llviddsp"
2622 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2623 vble_decoder_select="llviddsp"
2624 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2625 vc1_qsv_decoder_deps="libmfx"
2626 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2627 vc1image_decoder_select="vc1_decoder"
2628 vorbis_decoder_select="mdct"
2629 vorbis_encoder_select="mdct"
2630 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2631 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2632 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2633 vp6a_decoder_select="vp6_decoder"
2634 vp6f_decoder_select="vp6_decoder"
2635 vp7_decoder_select="h264pred videodsp vp8dsp"
2636 vp8_decoder_select="h264pred videodsp vp8dsp"
2637 vp9_decoder_select="videodsp vp9_parser"
2638 webp_decoder_select="vp8_decoder exif"
2639 wmalossless_decoder_select="llauddsp"
2640 wmapro_decoder_select="mdct sinewin wma_freqs"
2641 wmav1_decoder_select="mdct sinewin wma_freqs"
2642 wmav1_encoder_select="mdct sinewin wma_freqs"
2643 wmav2_decoder_select="mdct sinewin wma_freqs"
2644 wmav2_encoder_select="mdct sinewin wma_freqs"
2645 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2646 wmv1_decoder_select="h263_decoder"
2647 wmv1_encoder_select="h263_encoder"
2648 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2649 wmv2_encoder_select="h263_encoder wmv2dsp"
2650 wmv3_decoder_select="vc1_decoder"
2651 wmv3image_decoder_select="wmv3_decoder"
2652 xma1_decoder_select="wmapro_decoder"
2653 xma2_decoder_select="wmapro_decoder"
2654 zerocodec_decoder_select="zlib"
2655 zlib_decoder_select="zlib"
2656 zlib_encoder_select="zlib"
2657 zmbv_decoder_select="zlib"
2658 zmbv_encoder_select="zlib"
2659
2660 # hardware accelerators
2661 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2662 cuda_deps_any="libdl LoadLibrary"
2663 cuvid_deps="cuda"
2664 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2665 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2666 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2667 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2668 vda_deps="vda_framework pthreads corefoundation"
2669 vda_extralibs="-framework QuartzCore"
2670 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2671 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2672 xvmc_deps="X11_extensions_XvMClib_h"
2673
2674 h263_vaapi_hwaccel_deps="vaapi"
2675 h263_vaapi_hwaccel_select="h263_decoder"
2676 h263_videotoolbox_hwaccel_deps="videotoolbox"
2677 h263_videotoolbox_hwaccel_select="h263_decoder"
2678 h264_cuvid_hwaccel_deps="cuda cuvid"
2679 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2680 h264_d3d11va_hwaccel_deps="d3d11va"
2681 h264_d3d11va_hwaccel_select="h264_decoder"
2682 h264_d3d11va2_hwaccel_deps="d3d11va"
2683 h264_d3d11va2_hwaccel_select="h264_decoder"
2684 h264_dxva2_hwaccel_deps="dxva2"
2685 h264_dxva2_hwaccel_select="h264_decoder"
2686 h264_mediacodec_hwaccel_deps="mediacodec"
2687 h264_mmal_hwaccel_deps="mmal"
2688 h264_qsv_hwaccel_deps="libmfx"
2689 h264_vaapi_hwaccel_deps="vaapi"
2690 h264_vaapi_hwaccel_select="h264_decoder"
2691 h264_vda_hwaccel_deps="vda"
2692 h264_vda_hwaccel_select="h264_decoder"
2693 h264_vda_old_hwaccel_deps="vda"
2694 h264_vda_old_hwaccel_select="h264_decoder"
2695 h264_vdpau_hwaccel_deps="vdpau"
2696 h264_vdpau_hwaccel_select="h264_decoder"
2697 h264_videotoolbox_hwaccel_deps="videotoolbox"
2698 h264_videotoolbox_hwaccel_select="h264_decoder"
2699 hevc_cuvid_hwaccel_deps="cuda cuvid"
2700 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2701 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2702 hevc_d3d11va_hwaccel_select="hevc_decoder"
2703 hevc_mediacodec_hwaccel_deps="mediacodec"
2704 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2705 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2706 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2707 hevc_dxva2_hwaccel_select="hevc_decoder"
2708 hevc_qsv_hwaccel_deps="libmfx"
2709 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2710 hevc_vaapi_hwaccel_select="hevc_decoder"
2711 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2712 hevc_vdpau_hwaccel_select="hevc_decoder"
2713 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2714 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2715 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2716 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2717 mpeg_xvmc_hwaccel_deps="xvmc"
2718 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2719 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2720 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2721 mpeg1_vdpau_hwaccel_deps="vdpau"
2722 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2723 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2724 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2725 mpeg1_xvmc_hwaccel_deps="xvmc"
2726 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2727 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2728 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2729 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2730 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2731 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2732 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2733 mpeg2_dxva2_hwaccel_deps="dxva2"
2734 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2735 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2736 mpeg2_mmal_hwaccel_deps="mmal"
2737 mpeg2_qsv_hwaccel_deps="libmfx"
2738 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2739 mpeg2_vaapi_hwaccel_deps="vaapi"
2740 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2741 mpeg2_vdpau_hwaccel_deps="vdpau"
2742 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2743 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2744 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2745 mpeg2_xvmc_hwaccel_deps="xvmc"
2746 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2747 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2748 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2749 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2750 mpeg4_mmal_hwaccel_deps="mmal"
2751 mpeg4_vaapi_hwaccel_deps="vaapi"
2752 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2753 mpeg4_vdpau_hwaccel_deps="vdpau"
2754 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2755 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2756 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2757 vc1_cuvid_hwaccel_deps="cuda cuvid"
2758 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2759 vc1_d3d11va_hwaccel_deps="d3d11va"
2760 vc1_d3d11va_hwaccel_select="vc1_decoder"
2761 vc1_d3d11va2_hwaccel_deps="d3d11va"
2762 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2763 vc1_dxva2_hwaccel_deps="dxva2"
2764 vc1_dxva2_hwaccel_select="vc1_decoder"
2765 vc1_mmal_hwaccel_deps="mmal"
2766 vc1_qsv_hwaccel_deps="libmfx"
2767 vc1_qsv_hwaccel_select="qsvdec_vc1"
2768 vc1_vaapi_hwaccel_deps="vaapi"
2769 vc1_vaapi_hwaccel_select="vc1_decoder"
2770 vc1_vdpau_hwaccel_deps="vdpau"
2771 vc1_vdpau_hwaccel_select="vc1_decoder"
2772 vp8_cuvid_hwaccel_deps="cuda cuvid"
2773 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2774 vp9_cuvid_hwaccel_deps="cuda cuvid"
2775 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2776 vp8_mediacodec_hwaccel_deps="mediacodec"
2777 vp8_qsv_hwaccel_deps="libmfx"
2778 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2779 vp9_d3d11va_hwaccel_select="vp9_decoder"
2780 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2781 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2782 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2783 vp9_dxva2_hwaccel_select="vp9_decoder"
2784 vp9_mediacodec_hwaccel_deps="mediacodec"
2785 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2786 vp9_vaapi_hwaccel_select="vp9_decoder"
2787 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2788 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2789 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2790 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2791 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2792
2793 # hardware-accelerated codecs
2794 omx_deps="libdl pthreads"
2795 omx_rpi_select="omx"
2796 qsvdec_select="qsv"
2797 qsvenc_select="qsv"
2798 vaapi_encode_deps="vaapi"
2799 v4l2_m2m_deps_any="linux_videodev2_h"
2800
2801 hwupload_cuda_filter_deps="cuda"
2802 scale_npp_filter_deps="cuda libnpp"
2803 scale_cuda_filter_deps="cuda_sdk"
2804 thumbnail_cuda_filter_deps="cuda_sdk"
2805
2806 nvenc_deps="cuda"
2807 nvenc_deps_any="libdl LoadLibrary"
2808 nvenc_encoder_deps="nvenc"
2809
2810 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2811 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2812 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2813 h264_cuvid_decoder_deps="cuda cuvid"
2814 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2815 h264_mediacodec_decoder_deps="mediacodec"
2816 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2817 h264_mmal_decoder_deps="mmal"
2818 h264_nvenc_encoder_deps="nvenc"
2819 h264_omx_encoder_deps="omx"
2820 h264_qsv_decoder_deps="libmfx"
2821 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2822 h264_qsv_encoder_deps="libmfx"
2823 h264_qsv_encoder_select="qsvenc"
2824 h264_rkmpp_decoder_deps="rkmpp"
2825 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2826 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2827 h264_vaapi_encoder_select="vaapi_encode golomb"
2828 h264_vda_decoder_deps="vda"
2829 h264_vda_decoder_select="h264_decoder"
2830 h264_vdpau_decoder_deps="vdpau"
2831 h264_vdpau_decoder_select="h264_decoder"
2832 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2833 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2834 hevc_cuvid_decoder_deps="cuda cuvid"
2835 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2836 hevc_mediacodec_decoder_deps="mediacodec"
2837 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2838 hevc_nvenc_encoder_deps="nvenc"
2839 hevc_qsv_decoder_deps="libmfx"
2840 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2841 hevc_qsv_encoder_deps="libmfx"
2842 hevc_qsv_encoder_select="hevcparse qsvenc"
2843 hevc_rkmpp_decoder_deps="rkmpp"
2844 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2845 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2846 hevc_vaapi_encoder_select="vaapi_encode golomb"
2847 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2848 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2849 mjpeg_cuvid_decoder_deps="cuda cuvid"
2850 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2851 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2852 mpeg1_cuvid_decoder_deps="cuda cuvid"
2853 mpeg1_vdpau_decoder_deps="vdpau"
2854 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2855 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2856 mpeg2_crystalhd_decoder_select="crystalhd"
2857 mpeg2_cuvid_decoder_deps="cuda cuvid"
2858 mpeg2_mmal_decoder_deps="mmal"
2859 mpeg2_mediacodec_decoder_deps="mediacodec"
2860 mpeg2_qsv_decoder_deps="libmfx"
2861 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2862 mpeg2_qsv_encoder_deps="libmfx"
2863 mpeg2_qsv_encoder_select="qsvenc"
2864 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2865 mpeg2_vaapi_encoder_select="vaapi_encode"
2866 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2867 mpeg4_crystalhd_decoder_select="crystalhd"
2868 mpeg4_cuvid_decoder_deps="cuda cuvid"
2869 mpeg4_mediacodec_decoder_deps="mediacodec"
2870 mpeg4_mmal_decoder_deps="mmal"
2871 mpeg4_omx_encoder_deps="omx"
2872 mpeg4_vdpau_decoder_deps="vdpau"
2873 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2874 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2875 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2876 mpeg_vdpau_decoder_deps="vdpau"
2877 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2878 msmpeg4_crystalhd_decoder_select="crystalhd"
2879 nvenc_h264_encoder_select="h264_nvenc_encoder"
2880 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2881 vc1_crystalhd_decoder_select="crystalhd"
2882 vc1_cuvid_decoder_deps="cuda cuvid"
2883 vc1_mmal_decoder_deps="mmal"
2884 vc1_vdpau_decoder_deps="vdpau"
2885 vc1_vdpau_decoder_select="vc1_decoder"
2886 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2887 vp8_cuvid_decoder_deps="cuda cuvid"
2888 vp8_mediacodec_decoder_deps="mediacodec"
2889 vp8_qsv_decoder_deps="libmfx"
2890 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2891 vp8_rkmpp_decoder_deps="rkmpp"
2892 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2893 vp8_vaapi_encoder_select="vaapi_encode"
2894 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2895 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2896 vp9_cuvid_decoder_deps="cuda cuvid"
2897 vp9_mediacodec_decoder_deps="mediacodec"
2898 vp9_rkmpp_decoder_deps="rkmpp"
2899 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2900 vp9_vaapi_encoder_select="vaapi_encode"
2901 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2902 wmv3_crystalhd_decoder_select="crystalhd"
2903 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2904
2905 # parsers
2906 h264_parser_select="golomb h264dsp h264parse"
2907 hevc_parser_select="hevcparse"
2908 mpegaudio_parser_select="mpegaudioheader"
2909 mpegvideo_parser_select="mpegvideo"
2910 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2911 vc1_parser_select="vc1dsp"
2912
2913 # bitstream_filters
2914 mjpeg2jpeg_bsf_select="jpegtables"
2915
2916 # external libraries
2917 aac_at_decoder_deps="audiotoolbox"
2918 ac3_at_decoder_deps="audiotoolbox"
2919 ac3_at_decoder_select="ac3_parser"
2920 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2921 alac_at_decoder_deps="audiotoolbox"
2922 amr_nb_at_decoder_deps="audiotoolbox"
2923 avisynth_deps_any="libdl LoadLibrary"
2924 avisynth_demuxer_deps="avisynth"
2925 avisynth_demuxer_select="riffdec"
2926 eac3_at_decoder_deps="audiotoolbox"
2927 eac3_at_decoder_select="ac3_parser"
2928 gsm_ms_at_decoder_deps="audiotoolbox"
2929 ilbc_at_decoder_deps="audiotoolbox"
2930 mp1_at_decoder_deps="audiotoolbox"
2931 mp2_at_decoder_deps="audiotoolbox"
2932 mp3_at_decoder_deps="audiotoolbox"
2933 mp1_at_decoder_select="mpegaudioheader"
2934 mp2_at_decoder_select="mpegaudioheader"
2935 mp3_at_decoder_select="mpegaudioheader"
2936 pcm_alaw_at_decoder_deps="audiotoolbox"
2937 pcm_mulaw_at_decoder_deps="audiotoolbox"
2938 qdmc_at_decoder_deps="audiotoolbox"
2939 qdm2_at_decoder_deps="audiotoolbox"
2940 aac_at_encoder_deps="audiotoolbox"
2941 aac_at_encoder_select="audio_frame_queue"
2942 alac_at_encoder_deps="audiotoolbox"
2943 alac_at_encoder_select="audio_frame_queue"
2944 ilbc_at_encoder_deps="audiotoolbox"
2945 ilbc_at_encoder_select="audio_frame_queue"
2946 pcm_alaw_at_encoder_deps="audiotoolbox"
2947 pcm_alaw_at_encoder_select="audio_frame_queue"
2948 pcm_mulaw_at_encoder_deps="audiotoolbox"
2949 pcm_mulaw_at_encoder_select="audio_frame_queue"
2950 chromaprint_muxer_deps="chromaprint"
2951 h264_videotoolbox_encoder_deps="pthreads"
2952 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2953 libcelt_decoder_deps="libcelt"
2954 libfdk_aac_decoder_deps="libfdk_aac"
2955 libfdk_aac_encoder_deps="libfdk_aac"
2956 libfdk_aac_encoder_select="audio_frame_queue"
2957 libgme_demuxer_deps="libgme"
2958 libgsm_decoder_deps="libgsm"
2959 libgsm_encoder_deps="libgsm"
2960 libgsm_ms_decoder_deps="libgsm"
2961 libgsm_ms_encoder_deps="libgsm"
2962 libilbc_decoder_deps="libilbc"
2963 libilbc_encoder_deps="libilbc"
2964 libkvazaar_encoder_deps="libkvazaar"
2965 libmodplug_demuxer_deps="libmodplug"
2966 libmp3lame_encoder_deps="libmp3lame"
2967 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2968 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2969 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2970 libopencore_amrnb_encoder_select="audio_frame_queue"
2971 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2972 libopenh264_decoder_deps="libopenh264"
2973 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2974 libopenh264_encoder_deps="libopenh264"
2975 libopenjpeg_decoder_deps="libopenjpeg"
2976 libopenjpeg_encoder_deps="libopenjpeg"
2977 libopenmpt_demuxer_deps="libopenmpt"
2978 libopus_decoder_deps="libopus"
2979 libopus_encoder_deps="libopus"
2980 libopus_encoder_select="audio_frame_queue"
2981 librsvg_decoder_deps="librsvg"
2982 libshine_encoder_deps="libshine"
2983 libshine_encoder_select="audio_frame_queue"
2984 libspeex_decoder_deps="libspeex"
2985 libspeex_encoder_deps="libspeex"
2986 libspeex_encoder_select="audio_frame_queue"
2987 libtheora_encoder_deps="libtheora"
2988 libtwolame_encoder_deps="libtwolame"
2989 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2990 libvorbis_decoder_deps="libvorbis"
2991 libvorbis_encoder_deps="libvorbis libvorbisenc"
2992 libvorbis_encoder_select="audio_frame_queue"
2993 libvpx_vp8_decoder_deps="libvpx"
2994 libvpx_vp8_encoder_deps="libvpx"
2995 libvpx_vp9_decoder_deps="libvpx"
2996 libvpx_vp9_encoder_deps="libvpx"
2997 libwavpack_encoder_deps="libwavpack"
2998 libwavpack_encoder_select="audio_frame_queue"
2999 libwebp_encoder_deps="libwebp"
3000 libwebp_anim_encoder_deps="libwebp"
3001 libx262_encoder_deps="libx262"
3002 libx264_encoder_deps="libx264"
3003 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3004 libx264rgb_encoder_select="libx264_encoder"
3005 libx265_encoder_deps="libx265"
3006 libxavs_encoder_deps="libxavs"
3007 libxvid_encoder_deps="libxvid"
3008 libzvbi_teletext_decoder_deps="libzvbi"
3009 videotoolbox_suggest="coreservices"
3010 videotoolbox_deps="corefoundation coremedia corevideo"
3011 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3012 videotoolbox_encoder_suggest="vda_framework"
3013
3014 # demuxers / muxers
3015 ac3_demuxer_select="ac3_parser"
3016 aiff_muxer_select="iso_media"
3017 asf_demuxer_select="riffdec"
3018 asf_o_demuxer_select="riffdec"
3019 asf_muxer_select="riffenc"
3020 asf_stream_muxer_select="asf_muxer"
3021 avi_demuxer_select="iso_media riffdec exif"
3022 avi_muxer_select="riffenc"
3023 caf_demuxer_select="iso_media riffdec"
3024 caf_muxer_select="iso_media"
3025 dash_muxer_select="mp4_muxer"
3026 dash_demuxer_deps="libxml2"
3027 dirac_demuxer_select="dirac_parser"
3028 dts_demuxer_select="dca_parser"
3029 dtshd_demuxer_select="dca_parser"
3030 dv_demuxer_select="dvprofile"
3031 dv_muxer_select="dvprofile"
3032 dxa_demuxer_select="riffdec"
3033 eac3_demuxer_select="ac3_parser"
3034 f4v_muxer_select="mov_muxer"
3035 fifo_muxer_deps="threads"
3036 flac_demuxer_select="flac_parser"
3037 hds_muxer_select="flv_muxer"
3038 hls_muxer_select="mpegts_muxer"
3039 hls_muxer_suggest="gcrypt openssl"
3040 image2_alias_pix_demuxer_select="image2_demuxer"
3041 image2_brender_pix_demuxer_select="image2_demuxer"
3042 ipod_muxer_select="mov_muxer"
3043 ismv_muxer_select="mov_muxer"
3044 matroska_audio_muxer_select="matroska_muxer"
3045 matroska_demuxer_select="iso_media riffdec"
3046 matroska_demuxer_suggest="bzlib lzo zlib"
3047 matroska_muxer_select="iso_media riffenc"
3048 mmf_muxer_select="riffenc"
3049 mov_demuxer_select="iso_media riffdec"
3050 mov_demuxer_suggest="zlib"
3051 mov_muxer_select="iso_media riffenc rtpenc_chain"
3052 mp3_demuxer_select="mpegaudio_parser"
3053 mp3_muxer_select="mpegaudioheader"
3054 mp4_muxer_select="mov_muxer"
3055 mpegts_demuxer_select="iso_media"
3056 mpegts_muxer_select="adts_muxer latm_muxer"
3057 mpegtsraw_demuxer_select="mpegts_demuxer"
3058 mxf_d10_muxer_select="mxf_muxer"
3059 mxf_opatom_muxer_select="mxf_muxer"
3060 nut_muxer_select="riffenc"
3061 nuv_demuxer_select="riffdec"
3062 oga_muxer_select="ogg_muxer"
3063 ogg_demuxer_select="dirac_parse"
3064 ogv_muxer_select="ogg_muxer"
3065 opus_muxer_select="ogg_muxer"
3066 psp_muxer_select="mov_muxer"
3067 rtp_demuxer_select="sdp_demuxer"
3068 rtp_muxer_select="golomb"
3069 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3070 rtsp_demuxer_select="http_protocol rtpdec"
3071 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3072 sap_demuxer_select="sdp_demuxer"
3073 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3074 sdp_demuxer_select="rtpdec"
3075 smoothstreaming_muxer_select="ismv_muxer"
3076 spdif_muxer_select="aac_parser"
3077 spx_muxer_select="ogg_muxer"
3078 swf_demuxer_suggest="zlib"
3079 tak_demuxer_select="tak_parser"
3080 tg2_muxer_select="mov_muxer"
3081 tgp_muxer_select="mov_muxer"
3082 vobsub_demuxer_select="mpegps_demuxer"
3083 w64_demuxer_select="wav_demuxer"
3084 w64_muxer_select="wav_muxer"
3085 wav_demuxer_select="riffdec"
3086 wav_muxer_select="riffenc"
3087 webm_muxer_select="iso_media riffenc"
3088 webm_dash_manifest_demuxer_select="matroska_demuxer"
3089 wtv_demuxer_select="mpegts_demuxer riffdec"
3090 wtv_muxer_select="mpegts_muxer riffenc"
3091 xmv_demuxer_select="riffdec"
3092 xwma_demuxer_select="riffdec"
3093
3094 # indevs / outdevs
3095 alsa_indev_deps="alsa"
3096 alsa_outdev_deps="alsa"
3097 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3098 avfoundation_indev_suggest="coregraphics applicationservices"
3099 avfoundation_indev_extralibs="-framework Foundation"
3100 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3101 caca_outdev_deps="libcaca"
3102 decklink_deps_any="libdl LoadLibrary"
3103 decklink_indev_deps="decklink threads"
3104 decklink_indev_extralibs="-lstdc++"
3105 decklink_outdev_deps="decklink threads"
3106 decklink_outdev_extralibs="-lstdc++"
3107 libndi_newtek_indev_deps="libndi_newtek"
3108 libndi_newtek_indev_extralibs="-lndi"
3109 libndi_newtek_outdev_deps="libndi_newtek"
3110 libndi_newtek_outdev_extralibs="-lndi"
3111 dshow_indev_deps="IBaseFilter"
3112 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3113 fbdev_indev_deps="linux_fb_h"
3114 fbdev_outdev_deps="linux_fb_h"
3115 gdigrab_indev_deps="CreateDIBSection"
3116 gdigrab_indev_extralibs="-lgdi32"
3117 gdigrab_indev_select="bmp_decoder"
3118 iec61883_indev_deps="libiec61883"
3119 jack_indev_deps="jack"
3120 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3121 kmsgrab_indev_deps="libdrm"
3122 lavfi_indev_deps="avfilter"
3123 libcdio_indev_deps="libcdio"
3124 libdc1394_indev_deps="libdc1394"
3125 openal_indev_deps="openal"
3126 opengl_outdev_deps="opengl"
3127 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3128 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3129 pulse_indev_deps="libpulse"
3130 pulse_outdev_deps="libpulse"
3131 sdl2_outdev_deps="sdl2"
3132 sndio_indev_deps="sndio"
3133 sndio_outdev_deps="sndio"
3134 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3135 v4l2_indev_suggest="libv4l2"
3136 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3137 v4l2_outdev_suggest="libv4l2"
3138 vfwcap_indev_deps="vfw32 vfwcap_defines"
3139 xcbgrab_indev_deps="libxcb"
3140 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3141 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3142 xv_outdev_extralibs="-lXv -lX11 -lXext"
3143
3144 # protocols
3145 async_protocol_deps="threads"
3146 bluray_protocol_deps="libbluray"
3147 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3148 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3149 ffrtmpcrypt_protocol_select="tcp_protocol"
3150 ffrtmphttp_protocol_conflict="librtmp_protocol"
3151 ffrtmphttp_protocol_select="http_protocol"
3152 ftp_protocol_select="tcp_protocol"
3153 gopher_protocol_select="network"
3154 http_protocol_select="tcp_protocol"
3155 http_protocol_suggest="zlib"
3156 httpproxy_protocol_select="tcp_protocol"
3157 httpproxy_protocol_suggest="zlib"
3158 https_protocol_select="tls_protocol"
3159 https_protocol_suggest="zlib"
3160 icecast_protocol_select="http_protocol"
3161 librtmp_protocol_deps="librtmp"
3162 librtmpe_protocol_deps="librtmp"
3163 librtmps_protocol_deps="librtmp"
3164 librtmpt_protocol_deps="librtmp"
3165 librtmpte_protocol_deps="librtmp"
3166 libsmbclient_protocol_deps="libsmbclient gplv3"
3167 libssh_protocol_deps="libssh"
3168 mmsh_protocol_select="http_protocol"
3169 mmst_protocol_select="network"
3170 rtmp_protocol_conflict="librtmp_protocol"
3171 rtmp_protocol_select="tcp_protocol"
3172 rtmp_protocol_suggest="zlib"
3173 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3174 rtmpe_protocol_suggest="zlib"
3175 rtmps_protocol_conflict="librtmp_protocol"
3176 rtmps_protocol_select="tls_protocol"
3177 rtmps_protocol_suggest="zlib"
3178 rtmpt_protocol_select="ffrtmphttp_protocol"
3179 rtmpt_protocol_suggest="zlib"
3180 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3181 rtmpte_protocol_suggest="zlib"
3182 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3183 rtmpts_protocol_suggest="zlib"
3184 rtp_protocol_select="udp_protocol"
3185 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3186 sctp_protocol_select="network"
3187 srtp_protocol_select="rtp_protocol srtp"
3188 tcp_protocol_select="network"
3189 tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"
3190 tls_gnutls_protocol_deps="gnutls"
3191 tls_gnutls_protocol_select="tcp_protocol"
3192 tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"
3193 tls_openssl_protocol_deps="openssl"
3194 tls_openssl_protocol_select="tcp_protocol"
3195 tls_schannel_protocol_deps="schannel"
3196 tls_schannel_protocol_select="tcp_protocol"
3197 tls_securetransport_protocol_deps="securetransport"
3198 tls_securetransport_protocol_select="tcp_protocol"
3199 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3200 udp_protocol_select="network"
3201 udplite_protocol_select="network"
3202 unix_protocol_deps="sys_un_h"
3203 unix_protocol_select="network"
3204
3205 # filters
3206 afftfilt_filter_deps="avcodec"
3207 afftfilt_filter_select="fft"
3208 afir_filter_deps="avcodec"
3209 afir_filter_select="fft"
3210 amovie_filter_deps="avcodec avformat"
3211 aresample_filter_deps="swresample"
3212 ass_filter_deps="libass"
3213 atempo_filter_deps="avcodec"
3214 atempo_filter_select="rdft"
3215 azmq_filter_deps="libzmq"
3216 blackframe_filter_deps="gpl"
3217 boxblur_filter_deps="gpl"
3218 bs2b_filter_deps="libbs2b"
3219 colormatrix_filter_deps="gpl"
3220 coreimage_filter_deps="coreimage appkit"
3221 coreimage_filter_extralibs="-framework OpenGL"
3222 coreimagesrc_filter_deps="coreimage appkit"
3223 coreimagesrc_filter_extralibs="-framework OpenGL"
3224 cover_rect_filter_deps="avcodec avformat gpl"
3225 cropdetect_filter_deps="gpl"
3226 deinterlace_qsv_filter_deps="libmfx"
3227 deinterlace_vaapi_filter_deps="vaapi"
3228 delogo_filter_deps="gpl"
3229 deshake_filter_select="pixelutils"
3230 deshake_filter_suggest="opencl"
3231 drawtext_filter_deps="libfreetype"
3232 drawtext_filter_suggest="libfontconfig libfribidi"
3233 elbg_filter_deps="avcodec"
3234 eq_filter_deps="gpl"
3235 fftfilt_filter_deps="avcodec"
3236 fftfilt_filter_select="rdft"
3237 find_rect_filter_deps="avcodec avformat gpl"
3238 firequalizer_filter_deps="avcodec"
3239 firequalizer_filter_select="rdft"
3240 flite_filter_deps="libflite"
3241 framerate_filter_select="pixelutils"
3242 frei0r_filter_deps="frei0r libdl"
3243 frei0r_src_filter_deps="frei0r libdl"
3244 fspp_filter_deps="gpl"
3245 geq_filter_deps="gpl"
3246 histeq_filter_deps="gpl"
3247 hqdn3d_filter_deps="gpl"
3248 interlace_filter_deps="gpl"
3249 kerndeint_filter_deps="gpl"
3250 ladspa_filter_deps="ladspa libdl"
3251 mcdeint_filter_deps="avcodec gpl"
3252 movie_filter_deps="avcodec avformat"
3253 mpdecimate_filter_deps="gpl"
3254 mpdecimate_filter_select="pixelutils"
3255 mptestsrc_filter_deps="gpl"
3256 negate_filter_deps="lut_filter"
3257 nnedi_filter_deps="gpl"
3258 ocr_filter_deps="libtesseract"
3259 ocv_filter_deps="libopencv"
3260 owdenoise_filter_deps="gpl"
3261 pan_filter_deps="swresample"
3262 perspective_filter_deps="gpl"
3263 phase_filter_deps="gpl"
3264 pp7_filter_deps="gpl"
3265 pp_filter_deps="gpl postproc"
3266 pullup_filter_deps="gpl"
3267 removelogo_filter_deps="avcodec avformat swscale"
3268 repeatfields_filter_deps="gpl"
3269 resample_filter_deps="avresample"
3270 rubberband_filter_deps="librubberband"
3271 sab_filter_deps="gpl swscale"
3272 scale2ref_filter_deps="swscale"
3273 scale_filter_deps="swscale"
3274 scale_qsv_filter_deps="libmfx"
3275 select_filter_select="pixelutils"
3276 showcqt_filter_deps="avcodec avformat swscale"
3277 showcqt_filter_suggest="libfontconfig libfreetype"
3278 showcqt_filter_select="fft"
3279 showfreqs_filter_deps="avcodec"
3280 showfreqs_filter_select="fft"
3281 showspectrum_filter_deps="avcodec"
3282 showspectrum_filter_select="fft"
3283 showspectrumpic_filter_deps="avcodec"
3284 showspectrumpic_filter_select="fft"
3285 signature_filter_deps="gpl avcodec avformat"
3286 smartblur_filter_deps="gpl swscale"
3287 sofalizer_filter_deps="libmysofa avcodec"
3288 sofalizer_filter_select="fft"
3289 spectrumsynth_filter_deps="avcodec"
3290 spectrumsynth_filter_select="fft"
3291 spp_filter_deps="gpl avcodec"
3292 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3293 stereo3d_filter_deps="gpl"
3294 subtitles_filter_deps="avformat avcodec libass"
3295 super2xsai_filter_deps="gpl"
3296 pixfmts_super2xsai_test_deps="super2xsai_filter"
3297 tinterlace_filter_deps="gpl"
3298 tinterlace_merge_test_deps="tinterlace_filter"
3299 tinterlace_pad_test_deps="tinterlace_filter"
3300 tonemap_filter_deps="const_nan"
3301 uspp_filter_deps="gpl avcodec"
3302 unsharp_filter_suggest="opencl"
3303 vaguedenoiser_filter_deps="gpl"
3304 vidstabdetect_filter_deps="libvidstab"
3305 vidstabtransform_filter_deps="libvidstab"
3306 libvmaf_filter_deps="libvmaf"
3307 zmq_filter_deps="libzmq"
3308 zoompan_filter_deps="swscale"
3309 zscale_filter_deps="libzimg const_nan"
3310 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3311
3312 # examples
3313 avio_dir_cmd_deps="avformat avutil"
3314 avio_reading_deps="avformat avcodec avutil"
3315 decode_audio_example_deps="avcodec avutil"
3316 decode_video_example_deps="avcodec avutil"
3317 demuxing_decoding_example_deps="avcodec avformat avutil"
3318 encode_audio_example_deps="avcodec avutil"
3319 encode_video_example_deps="avcodec avutil"
3320 extract_mvs_example_deps="avcodec avformat avutil"
3321 filter_audio_example_deps="avfilter avutil"
3322 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3323 filtering_video_example_deps="avfilter avcodec avformat avutil"
3324 http_multiclient_example_deps="avformat avutil fork"
3325 hw_decode_example_deps="avcodec avformat avutil"
3326 metadata_example_deps="avformat avutil"
3327 muxing_example_deps="avcodec avformat avutil swscale"
3328 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3329 remuxing_example_deps="avcodec avformat avutil"
3330 resampling_audio_example_deps="avutil swresample"
3331 scaling_video_example_deps="avutil swscale"
3332 transcode_aac_example_deps="avcodec avformat swresample"
3333 transcoding_example_deps="avfilter avcodec avformat avutil"
3334
3335 # EXTRALIBS_LIST
3336 cpu_init_extralibs="pthreads_extralibs"
3337 cws2fws_extralibs="zlib_extralibs"
3338
3339 # libraries, in linking order
3340 avcodec_deps="avutil"
3341 avcodec_suggest="libm"
3342 avcodec_select="null_bsf"
3343 avdevice_deps="avformat avcodec avutil"
3344 avdevice_suggest="libm"
3345 avfilter_deps="avutil"
3346 avfilter_suggest="libm"
3347 avformat_deps="avcodec avutil"
3348 avformat_suggest="libm network"
3349 avresample_deps="avutil"
3350 avresample_suggest="libm"
3351 avutil_suggest="clock_gettime libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3352 postproc_deps="avutil gpl"
3353 postproc_suggest="libm"
3354 swresample_deps="avutil"
3355 swresample_suggest="libm libsoxr"
3356 swscale_deps="avutil"
3357 swscale_suggest="libm"
3358
3359 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3360 avfilter_extralibs="pthreads_extralibs"
3361 avutil_extralibs="nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3362
3363 # programs
3364 ffmpeg_deps="avcodec avfilter avformat swresample"
3365 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3366                null_filter
3367                trim_filter"
3368 ffmpeg_suggest="ole32 psapi shell32"
3369 ffplay_deps="avcodec avformat swscale swresample sdl2"
3370 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3371 ffplay_suggest="shell32"
3372 ffprobe_deps="avcodec avformat"
3373 ffprobe_suggest="shell32"
3374 ffserver_deps="avformat fork sarestart"
3375 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3376
3377 # documentation
3378 podpages_deps="perl"
3379 manpages_deps="perl pod2man"
3380 htmlpages_deps="perl"
3381 htmlpages_deps_any="makeinfo_html texi2html"
3382 txtpages_deps="perl makeinfo"
3383 doc_deps_any="manpages htmlpages podpages txtpages"
3384
3385 # default parameters
3386
3387 logfile="ffbuild/config.log"
3388
3389 # installation paths
3390 prefix_default="/usr/local"
3391 bindir_default='${prefix}/bin'
3392 datadir_default='${prefix}/share/ffmpeg'
3393 docdir_default='${prefix}/share/doc/ffmpeg'
3394 incdir_default='${prefix}/include'
3395 libdir_default='${prefix}/lib'
3396 mandir_default='${prefix}/share/man'
3397
3398 # toolchain
3399 ar_default="ar"
3400 cc_default="gcc"
3401 cxx_default="g++"
3402 host_cc_default="gcc"
3403 doxygen_default="doxygen"
3404 install="install"
3405 ln_s_default="ln -s -f"
3406 nm_default="nm -g"
3407 pkg_config_default=pkg-config
3408 ranlib_default="ranlib"
3409 strip_default="strip"
3410 version_script='--version-script'
3411 x86asmexe_default="nasm"
3412 windres_default="windres"
3413 nvcc_default="nvcc"
3414 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3415 striptype="direct"
3416
3417 # OS
3418 target_os_default=$(tolower $(uname -s))
3419 host_os=$target_os_default
3420
3421 # machine
3422 if test "$target_os_default" = aix; then
3423     arch_default=$(uname -p)
3424     strip_default="strip -X32_64"
3425 else
3426     arch_default=$(uname -m)
3427 fi
3428 cpu="generic"
3429 intrinsics="none"
3430
3431 # configurable options
3432 enable $PROGRAM_LIST
3433 enable $DOCUMENT_LIST
3434 enable $EXAMPLE_LIST
3435 enable $(filter_out avresample $LIBRARY_LIST)
3436 enable stripping
3437
3438 enable asm
3439 enable debug
3440 enable doc
3441 enable faan faandct faanidct
3442 enable optimizations
3443 enable runtime_cpudetect
3444 enable safe_bitstream_reader
3445 enable static
3446 enable swscale_alpha
3447 enable valgrind_backtrace
3448
3449 sws_max_filter_size_default=256
3450 set_default sws_max_filter_size
3451
3452 # internal components are enabled by default
3453 enable $EXTRALIBS_LIST
3454
3455 # Avoid external, non-system, libraries getting enabled by dependency resolution
3456 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3457
3458 # build settings
3459 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3460 LIBPREF="lib"
3461 LIBSUF=".a"
3462 FULLNAME='$(NAME)$(BUILDSUF)'
3463 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3464 SLIBPREF="lib"
3465 SLIBSUF=".so"
3466 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3467 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3468 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3469 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3470 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3471 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3472 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3473
3474 asflags_filter=echo
3475 cflags_filter=echo
3476 ldflags_filter=echo
3477
3478 AS_C='-c'
3479 AS_O='-o $@'
3480 CC_C='-c'
3481 CC_E='-E -o $@'
3482 CC_O='-o $@'
3483 CXX_C='-c'
3484 CXX_O='-o $@'
3485 OBJCC_C='-c'
3486 OBJCC_E='-E -o $@'
3487 OBJCC_O='-o $@'
3488 X86ASM_O='-o $@'
3489 LD_O='-o $@'
3490 LD_LIB='-l%'
3491 LD_PATH='-L'
3492 HOSTCC_C='-c'
3493 HOSTCC_E='-E -o $@'
3494 HOSTCC_O='-o $@'
3495 HOSTLD_O='-o $@'
3496 NVCC_C='-c'
3497 NVCC_O='-o $@'
3498
3499 host_extralibs='-lm'
3500 host_cflags_filter=echo
3501 host_ldflags_filter=echo
3502
3503 target_path='$(CURDIR)'
3504
3505 # since the object filename is not given with the -MM flag, the compiler
3506 # is only able to print the basename, and we must add the path ourselves
3507 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3508 DEPFLAGS='-MM'
3509
3510 mkdir -p ffbuild
3511
3512 # find source path
3513 if test -f configure; then
3514     source_path=.
3515 else
3516     source_path=$(cd $(dirname "$0"); pwd)
3517     case "$source_path" in
3518         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3519     esac
3520     test -e "$source_path/config.h" &&
3521         die "Out of tree builds are impossible with config.h in source dir."
3522 fi
3523
3524 for v in "$@"; do
3525     r=${v#*=}
3526     l=${v%"$r"}
3527     r=$(sh_quote "$r")
3528     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3529 done
3530
3531 find_things(){
3532     thing=$1
3533     pattern=$2
3534     file=$source_path/$3
3535     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3536 }
3537
3538 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3539 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3540 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3541 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3542 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3543 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3544 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3545 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3546 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3547
3548 find_things_extern(){
3549     thing=$1
3550     pattern=$2
3551     file=$source_path/$3
3552     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3553 }
3554
3555 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3556 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3557
3558 AVCODEC_COMPONENTS_LIST="
3559     $BSF_LIST
3560     $DECODER_LIST
3561     $ENCODER_LIST
3562     $HWACCEL_LIST
3563     $PARSER_LIST
3564 "
3565
3566 AVDEVICE_COMPONENTS_LIST="
3567     $INDEV_LIST
3568     $OUTDEV_LIST
3569 "
3570
3571 AVFILTER_COMPONENTS_LIST="
3572     $FILTER_LIST
3573 "
3574
3575 AVFORMAT_COMPONENTS_LIST="
3576     $DEMUXER_LIST
3577     $MUXER_LIST
3578     $PROTOCOL_LIST
3579 "
3580
3581 ALL_COMPONENTS="
3582     $AVCODEC_COMPONENTS_LIST
3583     $AVDEVICE_COMPONENTS_LIST
3584     $AVFILTER_COMPONENTS_LIST
3585     $AVFORMAT_COMPONENTS_LIST
3586 "
3587
3588 for n in $COMPONENT_LIST; do
3589     v=$(toupper ${n%s})_LIST
3590     eval enable \$$v
3591     eval ${n}_if_any="\$$v"
3592 done
3593
3594 enable $ARCH_EXT_LIST
3595
3596 die_unknown(){
3597     echo "Unknown option \"$1\"."
3598     echo "See $0 --help for available options."
3599     exit 1
3600 }
3601
3602 print_in_columns() {
3603     cols=$(expr $ncols / 24)
3604     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3605 }
3606
3607 show_list() {
3608     suffix=_$1
3609     shift
3610     echo $* | sed s/$suffix//g | print_in_columns
3611     exit 0
3612 }
3613
3614 rand_list(){
3615     IFS=', '
3616     set -- $*
3617     unset IFS
3618     for thing; do
3619         comp=${thing%:*}
3620         prob=${thing#$comp}
3621         prob=${prob#:}
3622         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3623         echo "prob ${prob:-0.5}"
3624         printf '%s\n' $comp
3625     done
3626 }
3627
3628 do_random(){
3629     action=$1
3630     shift
3631     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3632     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3633 }
3634
3635 for opt do
3636     optval="${opt#*=}"
3637     case "$opt" in
3638         --extra-ldflags=*)
3639             add_ldflags $optval
3640         ;;
3641         --extra-ldexeflags=*)
3642             add_ldexeflags $optval
3643         ;;
3644         --extra-ldlibflags=*)
3645             add_ldlibflags $optval
3646         ;;
3647         --extra-libs=*)
3648             add_extralibs $optval
3649         ;;
3650         --disable-devices)
3651             disable $INDEV_LIST $OUTDEV_LIST
3652         ;;
3653         --enable-debug=*)
3654             debuglevel="$optval"
3655         ;;
3656         --disable-programs)
3657             disable $PROGRAM_LIST
3658         ;;
3659         --disable-everything)
3660             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3661         ;;
3662         --disable-all)
3663             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3664             disable $LIBRARY_LIST $PROGRAM_LIST doc
3665             enable avutil
3666         ;;
3667         --enable-random|--disable-random)
3668             action=${opt%%-random}
3669             do_random ${action#--} $COMPONENT_LIST
3670         ;;
3671         --enable-random=*|--disable-random=*)
3672             action=${opt%%-random=*}
3673             do_random ${action#--} $optval
3674         ;;
3675         --enable-sdl)
3676             enable sdl2
3677         ;;
3678         --enable-*=*|--disable-*=*)
3679             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3680             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3681             eval list=\$$(toupper $thing)_LIST
3682             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3683             list=$(filter "$name" $list)
3684             [ "$list" = "" ] && warn "Option $opt did not match anything"
3685             $action $list
3686         ;;
3687         --enable-yasm|--disable-yasm)
3688             warn "The ${opt} option is only provided for compatibility and will be\n"\
3689                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3690             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3691         ;;
3692         --yasmexe=*)
3693             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3694                  "removed in the future. Use --x86asmexe instead."
3695             x86asmexe="$optval"
3696         ;;
3697         --enable-?*|--disable-?*)
3698             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3699             if is_in $option $COMPONENT_LIST; then
3700                 test $action = disable && action=unset
3701                 eval $action \$$(toupper ${option%s})_LIST
3702             elif is_in $option $CMDLINE_SELECT; then
3703                 $action $option
3704             else
3705                 die_unknown $opt
3706             fi
3707         ;;
3708         --list-*)
3709             NAME="${opt#--list-}"
3710             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3711             NAME=${NAME%s}
3712             eval show_list $NAME \$$(toupper $NAME)_LIST
3713         ;;
3714         --help|-h) show_help
3715         ;;
3716         --quiet|-q) quiet=yes
3717         ;;
3718         --fatal-warnings) enable fatal_warnings
3719         ;;
3720         --libfuzzer=*)
3721             libfuzzer_path="$optval"
3722         ;;
3723         *)
3724             optname="${opt%%=*}"
3725             optname="${optname#--}"
3726             optname=$(echo "$optname" | sed 's/-/_/g')
3727             if is_in $optname $CMDLINE_SET; then
3728                 eval $optname='$optval'
3729             elif is_in $optname $CMDLINE_APPEND; then
3730                 append $optname "$optval"
3731             else
3732                 die_unknown $opt
3733             fi
3734         ;;
3735     esac
3736 done
3737
3738 for e in $env; do
3739     eval "export $e"
3740 done
3741
3742 if disabled autodetect; then
3743
3744     # Unless iconv is explicitely disabled by the user, we still want to probe
3745     # for the iconv from the libc.
3746     disabled iconv || enable libc_iconv
3747
3748     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3749     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3750 fi
3751 # Mark specifically enabled, but normally autodetected libraries as requested.
3752 for lib in $AUTODETECT_LIBS; do
3753     enabled $lib && request $lib
3754 done
3755 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3756 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3757 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3758
3759 disabled logging && logfile=/dev/null
3760
3761 die_license_disabled() {
3762     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3763 }
3764
3765 die_license_disabled_gpl() {
3766     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3767 }
3768
3769 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3770 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3771
3772 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3773 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3774
3775 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3776
3777 # Disable all the library-specific components if the library itself
3778 # is disabled, see AVCODEC_LIST and following _LIST variables.
3779
3780 disable_components(){
3781     disabled ${1} && disable $(
3782         eval components="\$$(toupper ${1})_COMPONENTS"
3783         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3784     )
3785 }
3786
3787 map 'disable_components $v' $LIBRARY_LIST
3788
3789 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3790 set >> $logfile
3791
3792 test -n "$valgrind" && toolchain="valgrind-memcheck"
3793
3794 enabled ossfuzz && {
3795     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3796     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3797 }
3798
3799 case "$toolchain" in
3800     *-asan)
3801         cc_default="${toolchain%-asan}"
3802         add_cflags  -fsanitize=address
3803         add_ldflags -fsanitize=address
3804     ;;
3805     *-msan)
3806         cc_default="${toolchain%-msan}"
3807         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3808         add_ldflags -fsanitize=memory
3809     ;;
3810     *-tsan)
3811         cc_default="${toolchain%-tsan}"
3812         add_cflags  -fsanitize=thread -fPIE
3813         add_ldflags -fsanitize=thread -pie
3814         case "$toolchain" in
3815             gcc-tsan)
3816                 add_cflags  -fPIC
3817                 add_ldflags -fPIC
3818                 ;;
3819         esac
3820     ;;
3821     *-usan)
3822         cc_default="${toolchain%-usan}"
3823         add_cflags  -fsanitize=undefined
3824         add_ldflags -fsanitize=undefined
3825     ;;
3826     valgrind-*)
3827         target_exec_default="valgrind"
3828         case "$toolchain" in
3829             valgrind-massif)
3830                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3831                 ;;
3832             valgrind-memcheck)
3833                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3834                 ;;
3835         esac
3836     ;;
3837     msvc)
3838         # Check whether the current MSVC version needs the C99 converter.
3839         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3840         # support enough of C99 to build ffmpeg. Default to the new
3841         # behaviour if the regexp was unable to match anything, since this
3842         # successfully parses the version number of existing supported
3843         # versions that require the converter (MSVC 2010 and 2012).
3844         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3845         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3846             cc_default="cl"
3847             cxx_default="cl"
3848         else
3849             cc_default="c99wrap cl"
3850             cxx_default="c99wrap cl"
3851         fi
3852         ld_default="$source_path/compat/windows/mslink"
3853         nm_default="dumpbin -symbols"
3854         ar_default="lib"
3855         case "$arch" in
3856         arm*)
3857             as_default="armasm"
3858             ;;
3859         esac
3860         target_os_default="win32"
3861         # Use a relative path for TMPDIR. This makes sure all the
3862         # ffconf temp files are written with a relative path, avoiding
3863         # issues with msys/win32 path conversion for MSVC parameters
3864         # such as -Fo<file> or -out:<file>.
3865         TMPDIR=.
3866     ;;
3867     icl)
3868         cc_default="icl"
3869         ld_default="xilink"
3870         nm_default="dumpbin -symbols"
3871         ar_default="xilib"
3872         target_os_default="win32"
3873         TMPDIR=.
3874     ;;
3875     gcov)
3876         add_cflags  -fprofile-arcs -ftest-coverage
3877         add_ldflags -fprofile-arcs -ftest-coverage
3878     ;;
3879     llvm-cov)
3880         add_cflags -fprofile-arcs -ftest-coverage
3881         add_ldflags --coverage
3882     ;;
3883     hardened)
3884         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3885         add_cflags   -fno-strict-overflow -fstack-protector-all
3886         add_ldflags  -Wl,-z,relro -Wl,-z,now
3887         add_cflags   -fPIE
3888         add_ldexeflags -fPIE -pie
3889     ;;
3890     ?*)
3891         die "Unknown toolchain $toolchain"
3892     ;;
3893 esac
3894
3895 test -n "$cross_prefix" && enable cross_compile
3896
3897 if enabled cross_compile; then
3898     test -n "$arch" && test -n "$target_os" ||
3899         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3900 fi
3901
3902 ar_default="${cross_prefix}${ar_default}"
3903 cc_default="${cross_prefix}${cc_default}"
3904 cxx_default="${cross_prefix}${cxx_default}"
3905 nm_default="${cross_prefix}${nm_default}"
3906 pkg_config_default="${cross_prefix}${pkg_config_default}"
3907 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3908     ranlib_default="${cross_prefix}${ranlib_default} -D"
3909 else
3910     ranlib_default="${cross_prefix}${ranlib_default}"
3911 fi
3912 strip_default="${cross_prefix}${strip_default}"
3913 windres_default="${cross_prefix}${windres_default}"
3914
3915 sysinclude_default="${sysroot}/usr/include"
3916
3917 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3918     target_exec target_os x86asmexe nvcc
3919 enabled cross_compile || host_cc_default=$cc
3920 set_default host_cc
3921
3922 pkg_config_fail_message=""
3923 if ! $pkg_config --version >/dev/null 2>&1; then
3924     warn "$pkg_config not found, library detection may fail."
3925     pkg_config=false
3926 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3927     pkg_config_fail_message="
3928 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3929 fi
3930
3931 if test $doxygen != $doxygen_default && \
3932   ! $doxygen --version >/dev/null 2>&1; then
3933     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3934 fi
3935
3936 exesuf() {
3937     case $1 in
3938         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3939     esac
3940 }
3941
3942 EXESUF=$(exesuf $target_os)
3943 HOSTEXESUF=$(exesuf $host_os)
3944
3945 # set temporary file name
3946 : ${TMPDIR:=$TEMPDIR}
3947 : ${TMPDIR:=$TMP}
3948 : ${TMPDIR:=/tmp}
3949
3950 if [ -n "$tempprefix" ] ; then
3951     mktemp(){
3952         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3953         echo "$tmpname"
3954         mkdir "$tmpname"
3955     }
3956 elif ! check_cmd mktemp -u XXXXXX; then
3957     # simple replacement for missing mktemp
3958     # NOT SAFE FOR GENERAL USE
3959     mktemp(){
3960         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3961         echo "$tmpname"
3962         mkdir "$tmpname"
3963     }
3964 fi
3965
3966 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3967     die "Unable to create temporary directory in $TMPDIR."
3968
3969 tmpfile(){
3970     tmp="${FFTMPDIR}/test"$2
3971     (set -C; exec > $tmp) 2> /dev/null ||
3972         die "Unable to create temporary file in $FFTMPDIR."
3973     eval $1=$tmp
3974 }
3975
3976 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3977 trap 'exit 2' INT
3978
3979 tmpfile TMPASM .asm
3980 tmpfile TMPC   .c
3981 tmpfile TMPCPP .cpp
3982 tmpfile TMPE   $EXESUF
3983 tmpfile TMPH   .h
3984 tmpfile TMPM   .m
3985 tmpfile TMPO   .o
3986 tmpfile TMPS   .S
3987 tmpfile TMPSH  .sh
3988 tmpfile TMPV   .ver
3989
3990 unset -f mktemp
3991
3992 chmod +x $TMPE
3993
3994 # make sure we can execute files in $TMPDIR
3995 cat > $TMPSH 2>> $logfile <<EOF
3996 #! /bin/sh
3997 EOF
3998 chmod +x $TMPSH >> $logfile 2>&1
3999 if ! $TMPSH >> $logfile 2>&1; then
4000     cat <<EOF
4001 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4002 variable to another directory and make sure that it is not mounted noexec.
4003 EOF
4004     die "Sanity test failed."
4005 fi
4006
4007 armasm_flags(){
4008     for flag; do
4009         case $flag in
4010             # Filter out MSVC cl.exe options from cflags that shouldn't
4011             # be passed to gas-preprocessor
4012             -M[TD]*)                                            ;;
4013             *)                  echo $flag                      ;;
4014         esac
4015    done
4016 }
4017
4018 ccc_flags(){
4019     for flag; do
4020         case $flag in
4021             -std=c99)           echo -c99                       ;;
4022             -mcpu=*)            echo -arch ${flag#*=}           ;;
4023             -mieee)             echo -ieee                      ;;
4024             -O*|-fast)          echo $flag                      ;;
4025             -fno-math-errno)    echo -assume nomath_errno       ;;
4026             -g)                 echo -g3                        ;;
4027             -Wall)              echo -msg_enable level2         ;;
4028             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
4029             -Wl,*)              echo $flag                      ;;
4030             -f*|-W*)                                            ;;
4031             *)                  echo $flag                      ;;
4032         esac
4033    done
4034 }
4035
4036 cparser_flags(){
4037     for flag; do
4038         case $flag in
4039             -Wno-switch)             echo -Wno-switch-enum ;;
4040             -Wno-format-zero-length) ;;
4041             -Wdisabled-optimization) ;;
4042             -Wno-pointer-sign)       echo -Wno-other ;;
4043             *)                       echo $flag ;;
4044         esac
4045     done
4046 }
4047
4048 msvc_common_flags(){
4049     for flag; do
4050         case $flag in
4051             # In addition to specifying certain flags under the compiler
4052             # specific filters, they must be specified here as well or else the
4053             # generic catch all at the bottom will print the original flag.
4054             -Wall)                ;;
4055             -Wextra)              ;;
4056             -std=c99)             ;;
4057             # Common flags
4058             -fomit-frame-pointer) ;;
4059             -g)                   echo -Z7 ;;
4060             -fno-math-errno)      ;;
4061             -fno-common)          ;;
4062             -fno-signed-zeros)    ;;
4063             -fPIC)                ;;
4064             -mthumb)              ;;
4065             -march=*)             ;;
4066             -lz)                  echo zlib.lib ;;
4067             -lx264)               echo libx264.lib ;;
4068             -lstdc++)             ;;
4069             -l*)                  echo ${flag#-l}.lib ;;
4070             -LARGEADDRESSAWARE)   echo $flag ;;
4071             -L*)                  echo -libpath:${flag#-L} ;;
4072             *)                    echo $flag ;;
4073         esac
4074     done
4075 }
4076
4077 msvc_flags(){
4078     msvc_common_flags "$@"
4079     for flag; do
4080         case $flag in
4081             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4082                                        -wd4554 ;;
4083             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4084                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4085                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4086                                        -wd4307 \
4087                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4088         esac
4089     done
4090 }
4091
4092 icl_flags(){
4093     msvc_common_flags "$@"
4094     for flag; do
4095         case $flag in
4096             # Despite what Intel's documentation says -Wall, which is supported
4097             # on Windows, does enable remarks so disable them here.
4098             -Wall)                echo $flag -Qdiag-disable:remark ;;
4099             -std=c99)             echo -Qstd=c99 ;;
4100             -flto)                echo -ipo ;;
4101         esac
4102     done
4103 }
4104
4105 icc_flags(){
4106     for flag; do
4107         case $flag in
4108             -flto)                echo -ipo ;;
4109             *)                    echo $flag ;;
4110         esac
4111     done
4112 }
4113
4114 pgi_flags(){
4115     for flag; do
4116         case $flag in
4117             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4118             -fomit-frame-pointer) echo -Mnoframe ;;
4119             -g)                   echo -gopt ;;
4120             *)                    echo $flag ;;
4121         esac
4122     done
4123 }
4124
4125 suncc_flags(){
4126     for flag; do
4127         case $flag in
4128             -march=*|-mcpu=*)
4129                 case "${flag#*=}" in
4130                     native)                   echo -xtarget=native       ;;
4131                     v9|niagara)               echo -xarch=sparc          ;;
4132                     ultrasparc)               echo -xarch=sparcvis       ;;
4133                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4134                     i586|pentium)             echo -xchip=pentium        ;;
4135                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4136                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4137                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4138                     pentium4*)          echo -xtarget=pentium4           ;;
4139                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4140                     *-sse3)             echo -xarch=sse3                 ;;
4141                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4142                     bonnell)                   echo -xarch=ssse3         ;;
4143                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4144                     westmere)                  echo -xtarget=westmere    ;;
4145                     silvermont)                echo -xarch=sse4_2        ;;
4146                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4147                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4148                                                echo -xarch=avx           ;;
4149                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4150                     btver1)                    echo -xarch=amdsse4a      ;;
4151                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4152                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4153                     k8|opteron|athlon64|athlon-fx)
4154                                                echo -xarch=sse2a         ;;
4155                     athlon*)                   echo -xarch=pentium_proa  ;;
4156                 esac
4157                 ;;
4158             -std=c99)             echo -xc99              ;;
4159             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4160             -fPIC)                echo -KPIC -xcode=pic32 ;;
4161             -W*,*)                echo $flag              ;;
4162             -f*-*|-W*|-mimpure-text)                      ;;
4163             -shared)              echo -G                 ;;
4164             *)                    echo $flag              ;;
4165         esac
4166     done
4167 }
4168
4169 tms470_flags(){
4170     for flag; do
4171         case $flag in
4172             -march=*|-mcpu=*)
4173                 case "${flag#*=}" in
4174                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4175                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4176                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4177                     armv6*|arm11*)          echo -mv=6   ;;
4178                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4179                                             echo -mv=5e  ;;
4180                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4181                 esac
4182                 ;;
4183             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4184             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4185             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4186             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4187             -msoft-float)   echo --float_support=vfplib       ;;
4188             -O[0-3]|-mf=*)  echo $flag                        ;;
4189             -g)             echo -g -mn                       ;;
4190             -pds=*)         echo $flag                        ;;
4191             -D*|-I*)        echo $flag                        ;;
4192             --gcc|--abi=*)  echo $flag                        ;;
4193             -me)            echo $flag                        ;;
4194         esac
4195     done
4196 }
4197
4198 probe_cc(){
4199     pfx=$1
4200     _cc=$2
4201     first=$3
4202
4203     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4204     unset _ld_o _ldflags _ld_lib _ld_path
4205     unset _depflags _DEPCMD _DEPFLAGS
4206     _flags_filter=echo
4207
4208     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4209         true # no-op to avoid reading stdin in following checks
4210     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4211         _type=llvm_gcc
4212         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4213         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4214         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4215         _cflags_speed='-O3'
4216         _cflags_size='-Os'
4217     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4218         _type=gcc
4219         gcc_version=$($_cc --version | head -n1)
4220         gcc_basever=$($_cc -dumpversion)
4221         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4222         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4223         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4224         case $gcc_basever in
4225             2) ;;
4226             2.*) ;;
4227             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4228         esac
4229         if [ "$first" = true ]; then
4230             case $gcc_basever in
4231                 4.2*)
4232                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4233             esac
4234         fi
4235         _cflags_speed='-O3'
4236         _cflags_size='-Os'
4237     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4238         _type=icc
4239         _ident=$($_cc --version | head -n1)
4240         _depflags='-MMD'
4241         _cflags_speed='-O3'
4242         _cflags_size='-Os'
4243         _cflags_noopt='-O1'
4244         _flags_filter=icc_flags
4245     elif $_cc -v 2>&1 | grep -q xlc; then
4246         _type=xlc
4247         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4248         _cflags_speed='-O5'
4249         _cflags_size='-O5 -qcompact'
4250     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4251         _type=ccc
4252         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4253         _DEPFLAGS='-M'
4254         _cflags_speed='-fast'
4255         _cflags_size='-O1'
4256         _flags_filter=ccc_flags
4257     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4258         test -d "$sysroot" || die "No valid sysroot specified."
4259         _type=armcc
4260         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4261         armcc_conf="$PWD/armcc.conf"
4262         $_cc --arm_linux_configure                 \
4263              --arm_linux_config_file="$armcc_conf" \
4264              --configure_sysroot="$sysroot"        \
4265              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4266              die "Error creating armcc configuration file."
4267         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4268         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4269         as_default="${cross_prefix}gcc"
4270         _depflags='-MMD'
4271         _cflags_speed='-O3'
4272         _cflags_size='-Os'
4273     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4274         _type=tms470
4275         _ident=$($_cc -version | head -n1 | tr -s ' ')
4276         _flags='--gcc --abi=eabi -me'
4277         _cc_e='-ppl -fe=$@'
4278         _cc_o='-fe=$@'
4279         _depflags='-ppa -ppd=$(@:.o=.d)'
4280         _cflags_speed='-O3 -mf=5'
4281         _cflags_size='-O3 -mf=2'
4282         _flags_filter=tms470_flags
4283     elif $_cc -v 2>&1 | grep -q clang; then
4284         _type=clang
4285         _ident=$($_cc --version 2>/dev/null | head -n1)
4286         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4287         _cflags_speed='-O3'
4288         _cflags_size='-Oz'
4289     elif $_cc -V 2>&1 | grep -q Sun; then
4290         _type=suncc
4291         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4292         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4293         _DEPFLAGS='-xM1 -xc99'
4294         _ldflags='-std=c99'
4295         _cflags_speed='-O5'
4296         _cflags_size='-O5 -xspace'
4297         _flags_filter=suncc_flags
4298     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4299         _type=pathscale
4300         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4301         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4302         _cflags_speed='-O2'
4303         _cflags_size='-Os'
4304         _flags_filter='filter_out -Wdisabled-optimization'
4305     elif $_cc -v 2>&1 | grep -q Open64; then
4306         _type=open64
4307         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4308         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4309         _cflags_speed='-O2'
4310         _cflags_size='-Os'
4311         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4312     elif $_cc -V 2>&1 | grep -q Portland; then
4313         _type=pgi
4314         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4315         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4316         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4317         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4318         _cflags_noopt="-O"
4319         _flags_filter=pgi_flags
4320     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4321         _type=armasm
4322         _ident=$($_cc | head -n1)
4323         # 4509: "This form of conditional instruction is deprecated"
4324         _flags="-nologo -ignore 4509"
4325         _flags_filter=armasm_flags
4326     elif $_cc 2>&1 | grep -q Intel; then
4327         _type=icl
4328         _ident=$($_cc 2>&1 | head -n1)
4329         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4330         # Not only is O3 broken on 13.x+ but it is slower on all previous
4331         # versions (tested) as well.
4332         _cflags_speed="-O2"
4333         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4334         if $_cc 2>&1 | grep -q Linker; then
4335             _ld_o='-out:$@'
4336         else
4337             _ld_o='-Fe$@'
4338         fi
4339         _cc_o='-Fo$@'
4340         _cc_e='-P'
4341         _flags_filter=icl_flags
4342         _ld_lib='lib%.a'
4343         _ld_path='-libpath:'
4344         # -Qdiag-error to make icl error when seeing certain unknown arguments
4345         _flags='-nologo -Qdiag-error:4044,10157'
4346         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4347         # with MSVC which enables it by default.
4348         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4349         disable stripping
4350     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4351         # lld can emulate multiple different linkers; in ms link.exe mode,
4352         # the -? parameter gives the help output which contains an identifyable
4353         # string, while it gives an error in other modes.
4354         _type=lld-link
4355         # The link.exe mode doesn't have a switch for getting the version,
4356         # but we can force it back to gnu mode and get the version from there.
4357         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4358         _ld_o='-out:$@'
4359         _flags_filter=msvc_flags
4360         _ld_lib='lib%.a'
4361         _ld_path='-libpath:'
4362     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4363         _type=msvc
4364         _ident=$($_cc 2>&1 | head -n1)
4365         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4366         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4367         _cflags_speed="-O2"
4368         _cflags_size="-O1"
4369         _cflags_noopt="-O1"
4370         if $_cc -nologo- 2>&1 | grep -q Linker; then
4371             _ld_o='-out:$@'
4372         else
4373             _ld_o='-Fe$@'
4374         fi
4375         _cc_o='-Fo$@'
4376         _cc_e='-P -Fi$@'
4377         _flags_filter=msvc_flags
4378         _ld_lib='lib%.a'
4379         _ld_path='-libpath:'
4380         _flags='-nologo'
4381         disable stripping
4382     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4383         _type=cparser
4384         _ident=$($_cc --version | head -n1)
4385         _depflags='-MMD'
4386         _cflags_speed='-O4'
4387         _cflags_size='-O2'
4388         _flags_filter=cparser_flags
4389     fi
4390
4391     eval ${pfx}_type=\$_type
4392     eval ${pfx}_ident=\$_ident
4393 }
4394
4395 set_ccvars(){
4396     eval ${1}_C=\${_cc_c-\${${1}_C}}
4397     eval ${1}_E=\${_cc_e-\${${1}_E}}
4398     eval ${1}_O=\${_cc_o-\${${1}_O}}
4399
4400     if [ -n "$_depflags" ]; then
4401         eval ${1}_DEPFLAGS=\$_depflags
4402     else
4403         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4404         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4405         eval DEP${1}FLAGS=\$_flags
4406     fi
4407 }
4408
4409 probe_cc cc "$cc" "true"
4410 cflags_filter=$_flags_filter
4411 cflags_speed=$_cflags_speed
4412 cflags_size=$_cflags_size
4413 cflags_noopt=$_cflags_noopt
4414 add_cflags $_flags $_cflags
4415 cc_ldflags=$_ldflags
4416 set_ccvars CC
4417 set_ccvars CXX
4418
4419 probe_cc hostcc "$host_cc"
4420 host_cflags_filter=$_flags_filter
4421 host_cflags_speed=$_cflags_speed
4422 add_host_cflags  $_flags $_cflags
4423 set_ccvars HOSTCC
4424
4425 test -n "$cc_type" && enable $cc_type ||
4426     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4427
4428 : ${as_default:=$cc}
4429 : ${objcc_default:=$cc}
4430 : ${dep_cc_default:=$cc}
4431 : ${ld_default:=$cc}
4432 : ${host_ld_default:=$host_cc}
4433 set_default ar as objcc dep_cc ld ln_s host_ld windres
4434
4435 probe_cc as "$as"
4436 asflags_filter=$_flags_filter
4437 add_asflags $_flags $_cflags
4438 set_ccvars AS
4439
4440 probe_cc objcc "$objcc"
4441 objcflags_filter=$_flags_filter
4442 add_objcflags $_flags $_cflags
4443 set_ccvars OBJC
4444
4445 probe_cc ld "$ld"
4446 ldflags_filter=$_flags_filter
4447 add_ldflags $_flags $_ldflags
4448 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4449 LD_O=${_ld_o-$LD_O}
4450 LD_LIB=${_ld_lib-$LD_LIB}
4451 LD_PATH=${_ld_path-$LD_PATH}
4452
4453 probe_cc hostld "$host_ld"
4454 host_ldflags_filter=$_flags_filter
4455 add_host_ldflags $_flags $_ldflags
4456 HOSTLD_O=${_ld_o-$HOSTLD_O}
4457
4458 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4459     probe_cc depcc "$dep_cc"
4460     CCDEP=${_DEPCMD:-$DEPCMD}
4461     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4462     DEPCCFLAGS=$_flags
4463 fi
4464
4465 if $ar 2>&1 | grep -q Microsoft; then
4466     arflags="-nologo"
4467     ar_o='-out:$@'
4468 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4469     arflags="rq"
4470     ar_o='$@'
4471 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4472     arflags='-Xany -r -c'
4473     ar_o='$@'
4474 elif $ar 2>&1 | grep -q "\[D\] "; then
4475     arflags="rcD"
4476     ar_o='$@'
4477 else
4478     arflags="rc"
4479     ar_o='$@'
4480 fi
4481
4482 add_cflags $extra_cflags
4483 add_cxxflags $extra_cxxflags
4484 add_objcflags $extra_objcflags
4485 add_asflags $extra_cflags
4486
4487 if test -n "$sysroot"; then
4488     case "$cc_type" in
4489         gcc|llvm_gcc|clang)
4490             add_cppflags --sysroot="$sysroot"
4491             add_ldflags --sysroot="$sysroot"
4492 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4493             add_cppflags -isysroot "$sysroot"
4494             add_ldflags -isysroot "$sysroot"
4495         ;;
4496         tms470)
4497             add_cppflags -I"$sysinclude"
4498             add_ldflags  --sysroot="$sysroot"
4499         ;;
4500     esac
4501 fi
4502
4503 if test "$cpu" = host; then
4504     enabled cross_compile &&
4505         die "--cpu=host makes no sense when cross-compiling."
4506
4507     case "$cc_type" in
4508         gcc|llvm_gcc)
4509             check_native(){
4510                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4511                 sed -n "/cc1.*$1=/{
4512                             s/.*$1=\\([^ ]*\\).*/\\1/
4513                             p
4514                             q
4515                         }" $TMPE
4516             }
4517             cpu=$(check_native -march || check_native -mcpu)
4518         ;;
4519         clang)
4520             check_native(){
4521                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4522                 sed -n "/cc1.*-target-cpu /{
4523                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4524                             p
4525                             q
4526                         }" $TMPE
4527             }
4528             cpu=$(check_native -march)
4529         ;;
4530     esac
4531
4532     test "${cpu:-host}" = host &&
4533         die "--cpu=host not supported with compiler $cc"
4534 fi
4535
4536 # Deal with common $arch aliases
4537 case "$arch" in
4538     aarch64|arm64)
4539         arch="aarch64"
4540     ;;
4541     arm*|iPad*|iPhone*)
4542         arch="arm"
4543     ;;
4544     mips*|IP*)
4545         case "$arch" in
4546         *el)
4547             add_cppflags -EL
4548             add_ldflags -EL
4549         ;;
4550         *eb)
4551             add_cppflags -EB
4552             add_ldflags -EB
4553         ;;
4554         esac
4555         arch="mips"
4556     ;;
4557     parisc*|hppa*)
4558         arch="parisc"
4559     ;;
4560     "Power Macintosh"|ppc*|powerpc*)
4561         arch="ppc"
4562     ;;
4563     s390|s390x)
4564         arch="s390"
4565     ;;
4566     sh4|sh)
4567         arch="sh4"
4568     ;;
4569     sun4*|sparc*)
4570         arch="sparc"
4571     ;;
4572     tilegx|tile-gx)
4573         arch="tilegx"
4574     ;;
4575     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4576         arch="x86"
4577     ;;
4578 esac
4579
4580 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4581 enable $arch
4582
4583 # Add processor-specific flags
4584 if enabled aarch64; then
4585
4586     case $cpu in
4587         armv*)
4588             cpuflags="-march=$cpu"
4589         ;;
4590         *)
4591             cpuflags="-mcpu=$cpu"
4592         ;;
4593     esac
4594
4595 elif enabled alpha; then
4596
4597     cpuflags="-mcpu=$cpu"
4598
4599 elif enabled arm; then
4600
4601     check_arm_arch() {
4602         check_cpp_condition stddef.h \
4603             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4604             $cpuflags
4605     }
4606
4607     probe_arm_arch() {
4608         if   check_arm_arch 4;        then echo armv4
4609         elif check_arm_arch 4T;       then echo armv4t
4610         elif check_arm_arch 5;        then echo armv5
4611         elif check_arm_arch 5E;       then echo armv5e
4612         elif check_arm_arch 5T;       then echo armv5t
4613         elif check_arm_arch 5TE;      then echo armv5te
4614         elif check_arm_arch 5TEJ;     then echo armv5te
4615         elif check_arm_arch 6;        then echo armv6
4616         elif check_arm_arch 6J;       then echo armv6j
4617         elif check_arm_arch 6K;       then echo armv6k
4618         elif check_arm_arch 6Z;       then echo armv6z
4619         elif check_arm_arch 6ZK;      then echo armv6zk
4620         elif check_arm_arch 6T2;      then echo armv6t2
4621         elif check_arm_arch 7;        then echo armv7
4622         elif check_arm_arch 7A  7_A;  then echo armv7-a
4623         elif check_arm_arch 7S;       then echo armv7-a
4624         elif check_arm_arch 7R  7_R;  then echo armv7-r
4625         elif check_arm_arch 7M  7_M;  then echo armv7-m
4626         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4627         elif check_arm_arch 8A  8_A;  then echo armv8-a
4628         fi
4629     }
4630
4631     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4632
4633     case $cpu in
4634         armv*)
4635             cpuflags="-march=$cpu"
4636             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4637         ;;
4638         *)
4639             cpuflags="-mcpu=$cpu"
4640             case $cpu in
4641                 cortex-a*)                               subarch=armv7a  ;;
4642                 cortex-r*)                               subarch=armv7r  ;;
4643                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4644                 arm11*)                                  subarch=armv6   ;;
4645                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4646                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4647                 *)                             subarch=$(probe_arm_arch) ;;
4648             esac
4649         ;;
4650     esac
4651
4652     case "$subarch" in
4653         armv5t*)    enable fast_clz                ;;
4654         armv[6-8]*)
4655             enable fast_clz
4656             disabled fast_unaligned || enable fast_unaligned
4657             ;;
4658     esac
4659
4660 elif enabled avr32; then
4661
4662     case $cpu in
4663         ap7[02]0[0-2])
4664             subarch="avr32_ap"
4665             cpuflags="-mpart=$cpu"
4666         ;;
4667         ap)
4668             subarch="avr32_ap"
4669             cpuflags="-march=$cpu"
4670         ;;
4671         uc3[ab]*)
4672             subarch="avr32_uc"
4673             cpuflags="-mcpu=$cpu"
4674         ;;
4675         uc)
4676             subarch="avr32_uc"
4677             cpuflags="-march=$cpu"
4678         ;;
4679     esac
4680
4681 elif enabled bfin; then
4682
4683     cpuflags="-mcpu=$cpu"
4684
4685 elif enabled mips; then
4686
4687     cpuflags="-march=$cpu"
4688
4689     if [ "$cpu" != "generic" ]; then
4690         disable mips32r2
4691         disable mips32r5
4692         disable mips64r2
4693         disable mips32r6
4694         disable mips64r6
4695         disable loongson2
4696         disable loongson3
4697
4698         case $cpu in
4699             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4700                 enable mips32r2
4701                 disable msa
4702             ;;
4703             p5600|i6400|p6600)
4704                 disable mipsdsp
4705                 disable mipsdspr2
4706             ;;
4707             loongson*)
4708                 enable loongson2
4709                 enable loongson3
4710                 enable local_aligned_8 local_aligned_16 local_aligned_32
4711                 enable simd_align_16
4712                 enable fast_64bit
4713                 enable fast_clz
4714                 enable fast_cmov
4715                 enable fast_unaligned
4716                 disable aligned_stack
4717                 disable mipsfpu
4718                 disable mipsdsp
4719                 disable mipsdspr2
4720                 case $cpu in
4721                     loongson3*)
4722                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4723                     ;;
4724                     loongson2e)
4725                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4726                     ;;
4727                     loongson2f)
4728                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4729                     ;;
4730                 esac
4731             ;;
4732             *)
4733                 # Unknown CPU. Disable everything.
4734                 warn "unknown CPU. Disabling all MIPS optimizations."
4735                 disable mipsfpu
4736                 disable mipsdsp
4737                 disable mipsdspr2
4738                 disable msa
4739                 disable mmi
4740             ;;
4741         esac
4742
4743         case $cpu in
4744             24kc)
4745                 disable mipsfpu
4746                 disable mipsdsp
4747                 disable mipsdspr2
4748             ;;
4749             24kf*)
4750                 disable mipsdsp
4751                 disable mipsdspr2
4752             ;;
4753             24kec|34kc|1004kc)
4754                 disable mipsfpu
4755                 disable mipsdspr2
4756             ;;
4757             24kef*|34kf*|1004kf*)
4758                 disable mipsdspr2
4759             ;;
4760             74kc)
4761                 disable mipsfpu
4762             ;;
4763             p5600)
4764                 enable mips32r5
4765                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4766             ;;
4767             i6400)
4768                 enable mips64r6
4769                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4770             ;;
4771             p6600)
4772                 enable mips64r6
4773                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4774             ;;
4775         esac
4776     else
4777         # We do not disable anything. Is up to the user to disable the unwanted features.
4778         warn 'generic cpu selected'
4779     fi
4780
4781 elif enabled ppc; then
4782
4783     disable ldbrx
4784
4785     case $(tolower $cpu) in
4786         601|ppc601|powerpc601)
4787             cpuflags="-mcpu=601"
4788             disable altivec
4789         ;;
4790         603*|ppc603*|powerpc603*)
4791             cpuflags="-mcpu=603"
4792             disable altivec
4793         ;;
4794         604*|ppc604*|powerpc604*)
4795             cpuflags="-mcpu=604"
4796             disable altivec
4797         ;;
4798         g3|75*|ppc75*|powerpc75*)
4799             cpuflags="-mcpu=750"
4800             disable altivec
4801         ;;
4802         g4|745*|ppc745*|powerpc745*)
4803             cpuflags="-mcpu=7450"
4804             disable vsx
4805         ;;
4806         74*|ppc74*|powerpc74*)
4807             cpuflags="-mcpu=7400"
4808             disable vsx
4809         ;;
4810         g5|970|ppc970|powerpc970)
4811             cpuflags="-mcpu=970"
4812             disable vsx
4813         ;;
4814         power[3-6]*)
4815             cpuflags="-mcpu=$cpu"
4816             disable vsx
4817         ;;
4818         power[7-8]*)
4819             cpuflags="-mcpu=$cpu"
4820         ;;
4821         cell)
4822             cpuflags="-mcpu=cell"
4823             enable ldbrx
4824             disable vsx
4825         ;;
4826         e500mc)
4827             cpuflags="-mcpu=e500mc"
4828             disable altivec
4829         ;;
4830         e500v2)
4831             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4832             disable altivec
4833             disable dcbzl
4834         ;;
4835         e500)
4836             cpuflags="-mcpu=8540 -mhard-float"
4837             disable altivec
4838             disable dcbzl
4839         ;;
4840     esac
4841
4842 elif enabled sparc; then
4843
4844     case $cpu in
4845         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4846             cpuflags="-mcpu=$cpu"
4847         ;;
4848         ultrasparc*|niagara[234])
4849             cpuflags="-mcpu=$cpu"
4850         ;;
4851     esac
4852
4853 elif enabled x86; then
4854
4855     case $cpu in
4856         i[345]86|pentium)
4857             cpuflags="-march=$cpu"
4858             disable i686
4859             disable mmx
4860         ;;
4861         # targets that do NOT support nopl and conditional mov (cmov)
4862         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4863             cpuflags="-march=$cpu"
4864             disable i686
4865         ;;
4866         # targets that do support nopl and conditional mov (cmov)
4867         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4868         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4869         |amdfam10|barcelona|b[dt]ver*|znver*)
4870             cpuflags="-march=$cpu"
4871             enable i686
4872             enable fast_cmov
4873         ;;
4874         # targets that do support&nbs