Merge commit 'dd343fd986459f467a2d1d70c26101dff1d47d68'
[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   --enable-jni             enable JNI support [no]
221   --enable-ladspa          enable LADSPA audio filtering [no]
222   --enable-libass          enable libass subtitles rendering,
223                            needed for subtitles and ass filter [no]
224   --enable-libbluray       enable BluRay reading using libbluray [no]
225   --enable-libbs2b         enable bs2b DSP library [no]
226   --enable-libcaca         enable textual display using libcaca [no]
227   --enable-libcelt         enable CELT decoding via libcelt [no]
228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
229   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
230                            and libraw1394 [no]
231   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
232   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
233   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
234   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
235   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
236   --enable-libgme          enable Game Music Emu via libgme [no]
237   --enable-libgsm          enable GSM de/encoding via libgsm [no]
238   --enable-libiec61883     enable iec61883 via libiec61883 [no]
239   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
240   --enable-libjack         enable JACK audio sound server [no]
241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
242   --enable-libmodplug      enable ModPlug via libmodplug [no]
243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
244   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
245   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
246   --enable-libopencv       enable video filtering via libopencv [no]
247   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
248   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
249   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
250   --enable-libopus         enable Opus de/encoding via libopus [no]
251   --enable-libpulse        enable Pulseaudio input via libpulse [no]
252   --enable-librsvg         enable SVG rasterization via librsvg [no]
253   --enable-librubberband   enable rubberband needed for rubberband filter [no]
254   --enable-librtmp         enable RTMP[E] support via librtmp [no]
255   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
256   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
257   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
258   --enable-libsoxr         enable Include libsoxr resampling [no]
259   --enable-libspeex        enable Speex de/encoding via libspeex [no]
260   --enable-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-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
322   --disable-videotoolbox   disable VideoToolbox code [autodetect]
323
324 Toolchain options:
325   --arch=ARCH              select architecture [$arch]
326   --cpu=CPU                select the minimum required CPU (affects
327                            instruction selection, may crash on older CPUs)
328   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
329   --progs-suffix=SUFFIX    program name suffix []
330   --enable-cross-compile   assume a cross-compiler is used
331   --sysroot=PATH           root of cross-build tree
332   --sysinclude=PATH        location of cross-build system headers
333   --target-os=OS           compiler targets OS [$target_os]
334   --target-exec=CMD        command to run executables on target
335   --target-path=DIR        path to view of build directory on target
336   --target-samples=DIR     path to samples directory on target
337   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
338   --toolchain=NAME         set tool defaults according to NAME
339   --nm=NM                  use nm tool NM [$nm_default]
340   --ar=AR                  use archive tool AR [$ar_default]
341   --as=AS                  use assembler AS [$as_default]
342   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
343   --strip=STRIP            use strip tool STRIP [$strip_default]
344   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
345   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
346   --cc=CC                  use C compiler CC [$cc_default]
347   --cxx=CXX                use C compiler CXX [$cxx_default]
348   --objcc=OCC              use ObjC compiler OCC [$cc_default]
349   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
350   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
351   --ld=LD                  use linker LD [$ld_default]
352   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
353   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
354   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
355   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
356   --host-cc=HOSTCC         use host C compiler HOSTCC
357   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
358   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
359   --host-ld=HOSTLD         use host linker HOSTLD
360   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
361   --host-libs=HLIBS        use libs HLIBS when linking for host
362   --host-os=OS             compiler host OS [$target_os]
363   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
364   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
365   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
366   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
367   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
368   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
369   --extra-libs=ELIBS       add ELIBS [$ELIBS]
370   --extra-version=STRING   version string suffix []
371   --optflags=OPTFLAGS      override optimization-related compiler flags
372   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
373   --build-suffix=SUFFIX    library name suffix []
374   --enable-pic             build position-independent code
375   --enable-thumb           compile for Thumb instruction set
376   --enable-lto             use link-time optimization
377   --env="ENV=override"     override the environment variables
378
379 Advanced options (experts only):
380   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
381   --custom-allocator=NAME  use a supported custom allocator
382   --disable-symver         disable symbol versioning
383   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
384   --disable-safe-bitstream-reader
385                            disable buffer boundary checking in bitreaders
386                            (faster, but may crash)
387   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
388
389 Optimization options (experts only):
390   --disable-asm            disable all assembly optimizations
391   --disable-altivec        disable AltiVec optimizations
392   --disable-vsx            disable VSX optimizations
393   --disable-power8         disable POWER8 optimizations
394   --disable-amd3dnow       disable 3DNow! optimizations
395   --disable-amd3dnowext    disable 3DNow! extended optimizations
396   --disable-mmx            disable MMX optimizations
397   --disable-mmxext         disable MMXEXT optimizations
398   --disable-sse            disable SSE optimizations
399   --disable-sse2           disable SSE2 optimizations
400   --disable-sse3           disable SSE3 optimizations
401   --disable-ssse3          disable SSSE3 optimizations
402   --disable-sse4           disable SSE4 optimizations
403   --disable-sse42          disable SSE4.2 optimizations
404   --disable-avx            disable AVX optimizations
405   --disable-xop            disable XOP optimizations
406   --disable-fma3           disable FMA3 optimizations
407   --disable-fma4           disable FMA4 optimizations
408   --disable-avx2           disable AVX2 optimizations
409   --disable-aesni          disable AESNI optimizations
410   --disable-armv5te        disable armv5te optimizations
411   --disable-armv6          disable armv6 optimizations
412   --disable-armv6t2        disable armv6t2 optimizations
413   --disable-vfp            disable VFP optimizations
414   --disable-neon           disable NEON optimizations
415   --disable-inline-asm     disable use of inline assembly
416   --disable-x86asm         disable use of standalone x86 assembly
417   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
418   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
419   --disable-msa            disable MSA optimizations
420   --disable-mipsfpu        disable floating point MIPS optimizations
421   --disable-mmi            disable Loongson SIMD optimizations
422   --disable-fast-unaligned consider unaligned accesses slow
423
424 Developer options (useful when working on FFmpeg itself):
425   --disable-debug          disable debugging symbols
426   --enable-debug=LEVEL     set the debug level [$debuglevel]
427   --disable-optimizations  disable compiler optimizations
428   --enable-extra-warnings  enable more compiler warnings
429   --disable-stripping      disable stripping of executables and shared libraries
430   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
431                            2 causes a slowdown at runtime.
432   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
433   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
434                            leaks and errors, using the specified valgrind binary.
435                            Cannot be combined with --target-exec
436   --enable-ftrapv          Trap arithmetic overflows
437   --samples=PATH           location of test samples for FATE, if not set use
438                            \$FATE_SAMPLES at make invocation time.
439   --enable-neon-clobber-test check NEON registers for clobbering (should be
440                            used only for debugging purposes)
441   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
442                            should be used only for debugging purposes)
443   --enable-random          randomly enable/disable components
444   --disable-random
445   --enable-random=LIST     randomly enable/disable specific components or
446   --disable-random=LIST    component groups. LIST is a comma-separated list
447                            of NAME[:PROB] entries where NAME is a component
448                            (group) and PROB the probability associated with
449                            NAME (default 0.5).
450   --random-seed=VALUE      seed value for --enable/disable-random
451   --disable-valgrind-backtrace do not print a backtrace under Valgrind
452                            (only applies to --disable-optimizations builds)
453   --enable-osfuzz          Enable building fuzzer tool
454   --libfuzzer=PATH         path to libfuzzer
455   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
456                            in the name) of tests whose result is ignored
457   --enable-linux-perf      enable Linux Performance Monitor API
458
459 NOTE: Object files are built at the place where configure is launched.
460 EOF
461   exit 0
462 }
463
464 quotes='""'
465 if test -t 1 && which tput >/dev/null 2>&1; then
466     ncolors=$(tput colors)
467     if test -n "$ncolors" && test $ncolors -ge 8; then
468         bold_color=$(tput bold)
469         warn_color=$(tput setaf 3)
470         error_color=$(tput setaf 1)
471         reset_color=$(tput sgr0)
472     fi
473     # 72 used instead of 80 since that's the default of pr
474     ncols=$(tput cols)
475 fi
476 : ${ncols:=72}
477
478 log(){
479     echo "$@" >> $logfile
480 }
481
482 log_file(){
483     log BEGIN $1
484     pr -n -t $1 >> $logfile
485     log END $1
486 }
487
488 warn(){
489     log "WARNING: $*"
490     WARNINGS="${WARNINGS}WARNING: $*\n"
491 }
492
493 die(){
494     log "$@"
495     echo "$error_color$bold_color$@$reset_color"
496     cat <<EOF
497
498 If you think configure made a mistake, make sure you are using the latest
499 version from Git.  If the latest version fails, report the problem to the
500 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
501 EOF
502     if disabled logging; then
503         cat <<EOF
504 Rerun configure with logging enabled (do not use --disable-logging), and
505 include the log this produces with your report.
506 EOF
507     else
508         cat <<EOF
509 Include the log file "$logfile" produced by configure as this will help
510 solve the problem.
511 EOF
512     fi
513     exit 1
514 }
515
516 # Avoid locale weirdness, besides we really just want to translate ASCII.
517 toupper(){
518     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
519 }
520
521 tolower(){
522     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
523 }
524
525 c_escape(){
526     echo "$*" | sed 's/["\\]/\\\0/g'
527 }
528
529 sh_quote(){
530     v=$(echo "$1" | sed "s/'/'\\\\''/g")
531     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
532     echo "$v"
533 }
534
535 cleanws(){
536     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
537 }
538
539 filter(){
540     pat=$1
541     shift
542     for v; do
543         eval "case $v in $pat) printf '%s ' $v ;; esac"
544     done
545 }
546
547 filter_out(){
548     pat=$1
549     shift
550     for v; do
551         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
552     done
553 }
554
555 map(){
556     m=$1
557     shift
558     for v; do eval $m; done
559 }
560
561 add_suffix(){
562     suffix=$1
563     shift
564     for v; do echo ${v}${suffix}; done
565 }
566
567 set_all(){
568     value=$1
569     shift
570     for var in $*; do
571         eval $var=$value
572     done
573 }
574
575 set_weak(){
576     value=$1
577     shift
578     for var; do
579         eval : \${$var:=$value}
580     done
581 }
582
583 sanitize_var_name(){
584     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
585 }
586
587 set_safe(){
588     var=$1
589     shift
590     eval $(sanitize_var_name "$var")='$*'
591 }
592
593 get_safe(){
594     eval echo \$$(sanitize_var_name "$1")
595 }
596
597 pushvar(){
598     for pvar in $*; do
599         eval level=\${${pvar}_level:=0}
600         eval ${pvar}_${level}="\$$pvar"
601         eval ${pvar}_level=$(($level+1))
602     done
603 }
604
605 popvar(){
606     for pvar in $*; do
607         eval level=\${${pvar}_level:-0}
608         test $level = 0 && continue
609         eval level=$(($level-1))
610         eval $pvar="\${${pvar}_${level}}"
611         eval ${pvar}_level=$level
612         eval unset ${pvar}_${level}
613     done
614 }
615
616 request(){
617     for var in $*; do
618         eval ${var}_requested=yes
619         eval $var=
620     done
621 }
622
623 enable(){
624     set_all yes $*
625 }
626
627 disable(){
628     set_all no $*
629 }
630
631 enable_weak(){
632     set_weak yes $*
633 }
634
635 disable_weak(){
636     set_weak no $*
637 }
638
639 enable_safe(){
640     for var; do
641         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
642     done
643 }
644
645 disable_safe(){
646     for var; do
647         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
648     done
649 }
650
651 do_enable_deep(){
652     for var; do
653         enabled $var && continue
654         eval sel="\$${var}_select"
655         eval sgs="\$${var}_suggest"
656         pushvar var sgs
657         enable_deep $sel
658         popvar sgs
659         enable_deep_weak $sgs
660         popvar var
661     done
662 }
663
664 enable_deep(){
665     do_enable_deep $*
666     enable $*
667 }
668
669 enable_deep_weak(){
670     for var; do
671         disabled $var && continue
672         pushvar var
673         do_enable_deep $var
674         popvar var
675         enable_weak $var
676     done
677 }
678
679 requested(){
680     test "${1#!}" = "$1" && op='=' || op=!=
681     eval test "x\$${1#!}_requested" $op "xyes"
682 }
683
684 enabled(){
685     test "${1#!}" = "$1" && op='=' || op=!=
686     eval test "x\$${1#!}" $op "xyes"
687 }
688
689 disabled(){
690     test "${1#!}" = "$1" && op='=' || op=!=
691     eval test "x\$${1#!}" $op "xno"
692 }
693
694 enabled_all(){
695     for opt; do
696         enabled $opt || return 1
697     done
698 }
699
700 disabled_all(){
701     for opt; do
702         disabled $opt || return 1
703     done
704 }
705
706 enabled_any(){
707     for opt; do
708         enabled $opt && return 0
709     done
710 }
711
712 disabled_any(){
713     for opt; do
714         disabled $opt && return 0
715     done
716     return 1
717 }
718
719 set_default(){
720     for opt; do
721         eval : \${$opt:=\$${opt}_default}
722     done
723 }
724
725 is_in(){
726     value=$1
727     shift
728     for var in $*; do
729         [ $var = $value ] && return 0
730     done
731     return 1
732 }
733
734 check_deps(){
735     for cfg; do
736         enabled ${cfg}_checking && die "Circular dependency for $cfg."
737         disabled ${cfg}_checking && continue
738         enable ${cfg}_checking
739
740         eval dep_all="\$${cfg}_deps"
741         eval dep_any="\$${cfg}_deps_any"
742         eval dep_con="\$${cfg}_conflict"
743         eval dep_sel="\$${cfg}_select"
744         eval dep_sgs="\$${cfg}_suggest"
745         eval dep_ifa="\$${cfg}_if"
746         eval dep_ifn="\$${cfg}_if_any"
747
748         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
749         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
750         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
751
752         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
753         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
754         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
755         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
756         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
757         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
758
759         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
760
761         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
762             # filter out library deps, these do not belong in extralibs
763             is_in $dep $LIBRARY_LIST && continue
764             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
765         done
766
767         disable ${cfg}_checking
768     done
769 }
770
771 print_config(){
772     pfx=$1
773     files=$2
774     shift 2
775     map 'eval echo "$v \${$v:-no}"' "$@" |
776     awk "BEGIN { split(\"$files\", files) }
777         {
778             c = \"$pfx\" toupper(\$1);
779             v = \$2;
780             sub(/yes/, 1, v);
781             sub(/no/,  0, v);
782             for (f in files) {
783                 file = files[f];
784                 if (file ~ /\\.h\$/) {
785                     printf(\"#define %s %d\\n\", c, v) >>file;
786                 } else if (file ~ /\\.asm\$/) {
787                     printf(\"%%define %s %d\\n\", c, v) >>file;
788                 } else if (file ~ /\\.mak\$/) {
789                     n = -v ? \"\" : \"!\";
790                     printf(\"%s%s=yes\\n\", n, c) >>file;
791                 } else if (file ~ /\\.texi\$/) {
792                     pre = -v ? \"\" : \"@c \";
793                     yesno = \$2;
794                     c2 = tolower(c);
795                     gsub(/_/, \"-\", c2);
796                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
797                 }
798             }
799         }"
800 }
801
802 print_enabled(){
803     suf=$1
804     shift
805     for v; do
806         enabled $v && printf "%s\n" ${v%$suf}
807     done
808 }
809
810 append(){
811     var=$1
812     shift
813     eval "$var=\"\$$var $*\""
814 }
815
816 prepend(){
817     var=$1
818     shift
819     eval "$var=\"$* \$$var\""
820 }
821
822 unique(){
823     var=$1
824     uniq_list=""
825     for tok in $(eval echo \$$var); do
826         uniq_list="$(filter_out $tok $uniq_list) $tok"
827     done
828     eval "$var=\"${uniq_list}\""
829 }
830
831 resolve(){
832     var=$1
833     tmpvar=
834     for entry in $(eval echo \$$var); do
835         tmpvar="$tmpvar $(eval echo \$${entry})"
836     done
837     eval "$var=\"${tmpvar}\""
838 }
839
840 add_cppflags(){
841     append CPPFLAGS "$@"
842 }
843
844 add_cflags(){
845     append CFLAGS $($cflags_filter "$@")
846 }
847
848 add_cflags_headers(){
849     append CFLAGS_HEADERS $($cflags_filter "$@")
850 }
851
852 add_cxxflags(){
853     append CXXFLAGS $($cflags_filter "$@")
854 }
855
856 add_asflags(){
857     append ASFLAGS $($asflags_filter "$@")
858 }
859
860 add_objcflags(){
861     append OBJCFLAGS $($objcflags_filter "$@")
862 }
863
864 add_ldflags(){
865     append LDFLAGS $($ldflags_filter "$@")
866 }
867
868 add_ldexeflags(){
869     append LDEXEFLAGS $($ldflags_filter "$@")
870 }
871
872 add_ldlibflags(){
873     append LDLIBFLAGS $($ldflags_filter "$@")
874 }
875
876 add_stripflags(){
877     append ASMSTRIPFLAGS "$@"
878 }
879
880 add_extralibs(){
881     prepend extralibs $($ldflags_filter "$@")
882 }
883
884 add_host_cppflags(){
885     append host_cppflags "$@"
886 }
887
888 add_host_cflags(){
889     append host_cflags $($host_cflags_filter "$@")
890 }
891
892 add_host_ldflags(){
893     append host_ldflags $($host_ldflags_filter "$@")
894 }
895
896 add_compat(){
897     append compat_objs $1
898     shift
899     map 'add_cppflags -D$v' "$@"
900 }
901
902 check_cmd(){
903     log "$@"
904     "$@" >> $logfile 2>&1
905 }
906
907 check_stat(){
908     log check_stat "$@"
909     stat "$1" >> $logfile 2>&1
910 }
911
912 cc_o(){
913     eval printf '%s\\n' $CC_O
914 }
915
916 cc_e(){
917     eval printf '%s\\n' $CC_E
918 }
919
920 check_cc(){
921     log check_cc "$@"
922     cat > $TMPC
923     log_file $TMPC
924     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
925 }
926
927 check_cxx(){
928     log check_cxx "$@"
929     cat > $TMPCPP
930     log_file $TMPCPP
931     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
932 }
933
934 check_objcc(){
935     log check_objcc "$@"
936     cat > $TMPM
937     log_file $TMPM
938     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
939 }
940
941 check_cpp(){
942     log check_cpp "$@"
943     cat > $TMPC
944     log_file $TMPC
945     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
946 }
947
948 as_o(){
949     eval printf '%s\\n' $AS_O
950 }
951
952 check_as(){
953     log check_as "$@"
954     cat > $TMPS
955     log_file $TMPS
956     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
957 }
958
959 check_inline_asm(){
960     log check_inline_asm "$@"
961     name="$1"
962     code="$2"
963     shift 2
964     disable $name
965     check_cc "$@" <<EOF && enable $name
966 void foo(void){ __asm__ volatile($code); }
967 EOF
968 }
969
970 check_inline_asm_flags(){
971     log check_inline_asm_flags "$@"
972     name="$1"
973     code="$2"
974     flags=''
975     shift 2
976     while [ "$1" != "" ]; do
977       append flags $1
978       shift
979     done;
980     disable $name
981     cat > $TMPC <<EOF
982 void foo(void){ __asm__ volatile($code); }
983 EOF
984     log_file $TMPC
985     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
986     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
987 }
988
989 check_insn(){
990     log check_insn "$@"
991     check_inline_asm ${1}_inline "\"$2\""
992     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
993 }
994
995 check_x86asm(){
996     log check_x86asm "$@"
997     echo "$1" > $TMPS
998     log_file $TMPS
999     shift 1
1000     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1001 }
1002
1003 ld_o(){
1004     eval printf '%s\\n' $LD_O
1005 }
1006
1007 check_ld(){
1008     log check_ld "$@"
1009     type=$1
1010     shift 1
1011     flags=$(filter_out '-l*|*.so' $@)
1012     libs=$(filter '-l*|*.so' $@)
1013     check_$type $($cflags_filter $flags) || return
1014     flags=$($ldflags_filter $flags)
1015     libs=$($ldflags_filter $libs)
1016     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1017 }
1018
1019 print_include(){
1020     hdr=$1
1021     test "${hdr%.h}" = "${hdr}" &&
1022         echo "#include $hdr"    ||
1023         echo "#include <$hdr>"
1024 }
1025
1026 check_code(){
1027     log check_code "$@"
1028     check=$1
1029     headers=$2
1030     code=$3
1031     shift 3
1032     {
1033         for hdr in $headers; do
1034             print_include $hdr
1035         done
1036         echo "int main(void) { $code; return 0; }"
1037     } | check_$check "$@"
1038 }
1039
1040 check_cppflags(){
1041     log check_cppflags "$@"
1042     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1043 #include <stdlib.h>
1044 EOF
1045 }
1046
1047 test_cflags(){
1048     log test_cflags "$@"
1049     set -- $($cflags_filter "$@")
1050     check_cc "$@" <<EOF
1051 int x;
1052 EOF
1053 }
1054
1055 check_cflags(){
1056     log check_cflags "$@"
1057     test_cflags "$@" && add_cflags "$@"
1058 }
1059
1060 check_cxxflags(){
1061     log check_cxxflags "$@"
1062     set -- $($cflags_filter "$@")
1063     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1064 int x;
1065 EOF
1066 }
1067
1068 test_objcflags(){
1069     log test_objcflags "$@"
1070     set -- $($objcflags_filter "$@")
1071     check_objcc "$@" <<EOF
1072 int x;
1073 EOF
1074 }
1075
1076 check_objcflags(){
1077     log check_objcflags "$@"
1078     test_objcflags "$@" && add_objcflags "$@"
1079 }
1080
1081 test_ldflags(){
1082     log test_ldflags "$@"
1083     check_ld "cc" "$@" <<EOF
1084 int main(void){ return 0; }
1085 EOF
1086 }
1087
1088 check_ldflags(){
1089     log check_ldflags "$@"
1090     test_ldflags "$@" && add_ldflags "$@"
1091 }
1092
1093 test_stripflags(){
1094     log test_stripflags "$@"
1095     # call check_cc to get a fresh TMPO
1096     check_cc <<EOF
1097 int main(void) { return 0; }
1098 EOF
1099     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1100 }
1101
1102 check_stripflags(){
1103     log check_stripflags "$@"
1104     test_stripflags "$@" && add_stripflags "$@"
1105 }
1106
1107 check_header(){
1108     log check_header "$@"
1109     header=$1
1110     shift
1111     disable_safe $header
1112     check_cpp "$@" <<EOF && enable_safe $header
1113 #include <$header>
1114 int x;
1115 EOF
1116 }
1117
1118 check_header_objcc(){
1119     log check_header_objcc "$@"
1120     rm -f -- "$TMPO"
1121     header=$1
1122     shift
1123     disable_safe $header
1124     {
1125        echo "#include <$header>"
1126        echo "int main(void) { return 0; }"
1127     } | check_objcc && check_stat "$TMPO" && enable_safe $header
1128 }
1129
1130 check_apple_framework(){
1131     log check_apple_framework "$@"
1132     framework="$1"
1133     name="$(tolower $framework)"
1134     header="${framework}/${framework}.h"
1135     disable $name
1136     check_header_objcc $header &&
1137         enable $name && eval ${name}_extralibs='"-framework $framework"'
1138 }
1139
1140 check_func(){
1141     log check_func "$@"
1142     func=$1
1143     shift
1144     disable $func
1145     check_ld "cc" "$@" <<EOF && enable $func
1146 extern int $func();
1147 int main(void){ $func(); }
1148 EOF
1149 }
1150
1151 check_complexfunc(){
1152     log check_complexfunc "$@"
1153     func=$1
1154     narg=$2
1155     shift 2
1156     test $narg = 2 && args="f, g" || args="f * I"
1157     disable $func
1158     check_ld "cc" "$@" <<EOF && enable $func
1159 #include <complex.h>
1160 #include <math.h>
1161 float foo(complex float f, complex float g) { return $func($args); }
1162 int main(void){ return (int) foo; }
1163 EOF
1164 }
1165
1166 check_mathfunc(){
1167     log check_mathfunc "$@"
1168     func=$1
1169     narg=$2
1170     shift 2
1171     test $narg = 2 && args="f, g" || args="f"
1172     disable $func
1173     check_ld "cc" "$@" <<EOF && enable $func
1174 #include <math.h>
1175 float foo(float f, float g) { return $func($args); }
1176 int main(void){ return (int) foo; }
1177 EOF
1178 }
1179
1180 check_func_headers(){
1181     log check_func_headers "$@"
1182     headers=$1
1183     funcs=$2
1184     shift 2
1185     {
1186         for hdr in $headers; do
1187             print_include $hdr
1188         done
1189         echo "#include <stdint.h>"
1190         for func in $funcs; do
1191             echo "long check_$func(void) { return (long) $func; }"
1192         done
1193         echo "int main(void) { int ret = 0;"
1194         # LTO could optimize out the test functions without this
1195         for func in $funcs; do
1196             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1197         done
1198         echo "return ret; }"
1199     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1200 }
1201
1202 check_class_headers_cpp(){
1203     log check_class_headers_cpp "$@"
1204     headers=$1
1205     classes=$2
1206     shift 2
1207     {
1208         for hdr in $headers; do
1209             echo "#include <$hdr>"
1210         done
1211         echo "int main(void) { "
1212         i=1
1213         for class in $classes; do
1214             echo "$class obj$i;"
1215             i=$(expr $i + 1)
1216         done
1217         echo "return 0; }"
1218     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1219 }
1220
1221 check_cpp_condition(){
1222     log check_cpp_condition "$@"
1223     header=$1
1224     condition=$2
1225     shift 2
1226     check_cpp "$@" <<EOF
1227 #include <$header>
1228 #if !($condition)
1229 #error "unsatisfied condition: $condition"
1230 #endif
1231 EOF
1232 }
1233
1234 test_cflags_cc(){
1235     log test_cflags_cc "$@"
1236     flags=$1
1237     header=$2
1238     condition=$3
1239     shift 3
1240     set -- $($cflags_filter "$flags")
1241     check_cc "$@" <<EOF
1242 #include <$header>
1243 #if !($condition)
1244 #error "unsatisfied condition: $condition"
1245 #endif
1246 EOF
1247 }
1248
1249 check_lib(){
1250     log check_lib "$@"
1251     name="$1"
1252     headers="$2"
1253     funcs="$3"
1254     shift 3
1255     disable $name
1256     check_func_headers "$headers" "$funcs" "$@" &&
1257         enable $name && eval ${name}_extralibs="\$@"
1258 }
1259
1260 check_lib_cpp(){
1261     log check_lib_cpp "$@"
1262     name="$1"
1263     headers="$2"
1264     classes="$3"
1265     shift 3
1266     disable $name
1267     check_class_headers_cpp "$headers" "$classes" "$@" &&
1268         enable $name && eval ${name}_extralibs="\$@"
1269 }
1270
1271 check_pkg_config(){
1272     log check_pkg_config "$@"
1273     name="$1"
1274     pkg_version="$2"
1275     pkg="${2%% *}"
1276     headers="$3"
1277     funcs="$4"
1278     shift 4
1279     disable $name
1280     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1281     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1282     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1283     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1284         enable $name &&
1285         set_safe "${name}_cflags"    $pkg_cflags &&
1286         set_safe "${name}_extralibs" $pkg_libs
1287 }
1288
1289 check_exec(){
1290     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1291 }
1292
1293 check_exec_crash(){
1294     log check_exec_crash "$@"
1295     code=$(cat)
1296
1297     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1298     # are safe but may not be available everywhere.  Thus we use
1299     # raise(SIGTERM) instead.  The check is run in a subshell so we
1300     # can redirect the "Terminated" message from the shell.  SIGBUS
1301     # is not defined by standard C so it is used conditionally.
1302
1303     (check_exec "$@") >> $logfile 2>&1 <<EOF
1304 #include <signal.h>
1305 static void sighandler(int sig){
1306     raise(SIGTERM);
1307 }
1308 int foo(void){
1309     $code
1310 }
1311 int (*func_ptr)(void) = foo;
1312 int main(void){
1313     signal(SIGILL, sighandler);
1314     signal(SIGFPE, sighandler);
1315     signal(SIGSEGV, sighandler);
1316 #ifdef SIGBUS
1317     signal(SIGBUS, sighandler);
1318 #endif
1319     return func_ptr();
1320 }
1321 EOF
1322 }
1323
1324 check_type(){
1325     log check_type "$@"
1326     headers=$1
1327     type=$2
1328     shift 2
1329     disable_safe "$type"
1330     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1331 }
1332
1333 check_struct(){
1334     log check_struct "$@"
1335     headers=$1
1336     struct=$2
1337     member=$3
1338     shift 3
1339     disable_safe "${struct}_${member}"
1340     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1341         enable_safe "${struct}_${member}"
1342 }
1343
1344 check_builtin(){
1345     log check_builtin "$@"
1346     name=$1
1347     headers=$2
1348     builtin=$3
1349     shift 3
1350     disable "$name"
1351     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1352 }
1353
1354 check_compile_assert(){
1355     log check_compile_assert "$@"
1356     name=$1
1357     headers=$2
1358     condition=$3
1359     shift 3
1360     disable "$name"
1361     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1362 }
1363
1364 require(){
1365     log require "$@"
1366     name_version="$1"
1367     name="${1%% *}"
1368     headers="$2"
1369     func="$3"
1370     shift 3
1371     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1372 }
1373
1374 require_cpp(){
1375     name="$1"
1376     headers="$2"
1377     classes="$3"
1378     shift 3
1379     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1380 }
1381
1382 require_header(){
1383     log require "$@"
1384     header="$1"
1385     shift
1386     check_header "$header" "$@" || die "ERROR: $header header not found"
1387 }
1388
1389 require_cpp_condition(){
1390     log require "$@"
1391     header="$1"
1392     condition="$2"
1393     shift 2
1394     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1395 }
1396
1397 use_pkg_config(){
1398     log use_pkg_config "$@"
1399     name="$1"
1400     check_pkg_config "$@" || return 1
1401     add_cflags    $(get_safe "${name}_cflags")
1402 }
1403
1404 require_pkg_config(){
1405     log require_pkg_config "$@"
1406     pkg_version="$2"
1407     use_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1408 }
1409
1410 hostcc_e(){
1411     eval printf '%s\\n' $HOSTCC_E
1412 }
1413
1414 hostcc_o(){
1415     eval printf '%s\\n' $HOSTCC_O
1416 }
1417
1418 check_host_cc(){
1419     log check_host_cc "$@"
1420     cat > $TMPC
1421     log_file $TMPC
1422     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1423 }
1424
1425 check_host_cpp(){
1426     log check_host_cpp "$@"
1427     cat > $TMPC
1428     log_file $TMPC
1429     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1430 }
1431
1432 check_host_cppflags(){
1433     log check_host_cppflags "$@"
1434     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1435 #include <stdlib.h>
1436 EOF
1437 }
1438
1439 check_host_cflags(){
1440     log check_host_cflags "$@"
1441     set -- $($host_cflags_filter "$@")
1442     check_host_cc "$@" <<EOF && append host_cflags "$@"
1443 int x;
1444 EOF
1445 }
1446
1447 check_host_cpp_condition(){
1448     log check_host_cpp_condition "$@"
1449     header=$1
1450     condition=$2
1451     shift 2
1452     check_host_cpp "$@" <<EOF
1453 #include <$header>
1454 #if !($condition)
1455 #error "unsatisfied condition: $condition"
1456 #endif
1457 EOF
1458 }
1459
1460 cp_if_changed(){
1461     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1462     mkdir -p "$(dirname $2)"
1463     cp -f "$1" "$2"
1464 }
1465
1466 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1467 # system-dependent things.
1468
1469 AVCODEC_COMPONENTS="
1470     bsfs
1471     decoders
1472     encoders
1473     hwaccels
1474     parsers
1475 "
1476
1477 AVDEVICE_COMPONENTS="
1478     indevs
1479     outdevs
1480 "
1481
1482 AVFILTER_COMPONENTS="
1483     filters
1484 "
1485
1486 AVFORMAT_COMPONENTS="
1487     demuxers
1488     muxers
1489     protocols
1490 "
1491
1492 AVRESAMPLE_COMPONENTS=""
1493
1494 AVUTIL_COMPONENTS=""
1495
1496 COMPONENT_LIST="
1497     $AVCODEC_COMPONENTS
1498     $AVDEVICE_COMPONENTS
1499     $AVFILTER_COMPONENTS
1500     $AVFORMAT_COMPONENTS
1501     $AVRESAMPLE_COMPONENTS
1502     $AVUTIL_COMPONENTS
1503 "
1504
1505 EXAMPLE_LIST="
1506     avio_dir_cmd_example
1507     avio_reading_example
1508     decode_audio_example
1509     decode_video_example
1510     demuxing_decoding_example
1511     encode_audio_example
1512     encode_video_example
1513     extract_mvs_example
1514     filter_audio_example
1515     filtering_audio_example
1516     filtering_video_example
1517     http_multiclient_example
1518     hw_decode_example
1519     metadata_example
1520     muxing_example
1521     qsvdec_example
1522     remuxing_example
1523     resampling_audio_example
1524     scaling_video_example
1525     transcode_aac_example
1526     transcoding_example
1527 "
1528
1529 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1530     alsa
1531     appkit
1532     avfoundation
1533     bzlib
1534     coreimage
1535     iconv
1536     libxcb
1537     libxcb_shm
1538     libxcb_shape
1539     libxcb_xfixes
1540     lzma
1541     schannel
1542     sdl2
1543     securetransport
1544     sndio
1545     xlib
1546     zlib
1547 "
1548
1549 EXTERNAL_LIBRARY_GPL_LIST="
1550     avisynth
1551     frei0r
1552     libcdio
1553     librubberband
1554     libvidstab
1555     libx264
1556     libx265
1557     libxavs
1558     libxvid
1559 "
1560
1561 EXTERNAL_LIBRARY_NONFREE_LIST="
1562     decklink
1563     libndi_newtek
1564     libfdk_aac
1565     openssl
1566 "
1567
1568 EXTERNAL_LIBRARY_VERSION3_LIST="
1569     gmp
1570     libopencore_amrnb
1571     libopencore_amrwb
1572     libvo_amrwbenc
1573     rkmpp
1574 "
1575
1576 EXTERNAL_LIBRARY_GPLV3_LIST="
1577     libsmbclient
1578 "
1579
1580 EXTERNAL_LIBRARY_LIST="
1581     $EXTERNAL_LIBRARY_GPL_LIST
1582     $EXTERNAL_LIBRARY_NONFREE_LIST
1583     $EXTERNAL_LIBRARY_VERSION3_LIST
1584     $EXTERNAL_LIBRARY_GPLV3_LIST
1585     chromaprint
1586     gcrypt
1587     gnutls
1588     jni
1589     ladspa
1590     libass
1591     libbluray
1592     libbs2b
1593     libcaca
1594     libcelt
1595     libdc1394
1596     libdrm
1597     libflite
1598     libfontconfig
1599     libfreetype
1600     libfribidi
1601     libgme
1602     libgsm
1603     libiec61883
1604     libilbc
1605     libjack
1606     libkvazaar
1607     libmodplug
1608     libmp3lame
1609     libmysofa
1610     libopencv
1611     libopenh264
1612     libopenjpeg
1613     libopenmpt
1614     libopus
1615     libpulse
1616     librsvg
1617     librtmp
1618     libshine
1619     libsmbclient
1620     libsnappy
1621     libsoxr
1622     libspeex
1623     libssh
1624     libtesseract
1625     libtheora
1626     libtwolame
1627     libv4l2
1628     libvmaf
1629     libvorbis
1630     libvpx
1631     libwavpack
1632     libwebp
1633     libxml2
1634     libzimg
1635     libzmq
1636     libzvbi
1637     mediacodec
1638     openal
1639     opencl
1640     opengl
1641 "
1642
1643 HWACCEL_AUTODETECT_LIBRARY_LIST="
1644     audiotoolbox
1645     crystalhd
1646     cuda
1647     cuvid
1648     d3d11va
1649     dxva2
1650     nvenc
1651     vaapi
1652     vdpau
1653     videotoolbox
1654     v4l2_m2m
1655     xvmc
1656 "
1657
1658 # catchall list of things that require external libs to link
1659 EXTRALIBS_LIST="
1660     cpu_init
1661     cws2fws
1662 "
1663
1664 HWACCEL_LIBRARY_NONFREE_LIST="
1665     cuda_sdk
1666     libnpp
1667 "
1668
1669 HWACCEL_LIBRARY_LIST="
1670     $HWACCEL_LIBRARY_NONFREE_LIST
1671     libmfx
1672     mmal
1673     omx
1674 "
1675
1676 DOCUMENT_LIST="
1677     doc
1678     htmlpages
1679     manpages
1680     podpages
1681     txtpages
1682 "
1683
1684 FEATURE_LIST="
1685     ftrapv
1686     gray
1687     hardcoded_tables
1688     omx_rpi
1689     runtime_cpudetect
1690     safe_bitstream_reader
1691     shared
1692     small
1693     static
1694     swscale_alpha
1695 "
1696
1697 LIBRARY_LIST="
1698     avcodec
1699     avdevice
1700     avfilter
1701     avformat
1702     avresample
1703     avutil
1704     postproc
1705     swresample
1706     swscale
1707 "
1708
1709 LICENSE_LIST="
1710     gpl
1711     nonfree
1712     version3
1713 "
1714
1715 PROGRAM_LIST="
1716     ffplay
1717     ffprobe
1718     ffserver
1719     ffmpeg
1720 "
1721
1722 SUBSYSTEM_LIST="
1723     dct
1724     dwt
1725     error_resilience
1726     faan
1727     fast_unaligned
1728     fft
1729     lsp
1730     lzo
1731     mdct
1732     pixelutils
1733     network
1734     rdft
1735 "
1736
1737 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1738 CONFIG_LIST="
1739     $DOCUMENT_LIST
1740     $EXAMPLE_LIST
1741     $EXTERNAL_LIBRARY_LIST
1742     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1743     $HWACCEL_LIBRARY_LIST
1744     $HWACCEL_AUTODETECT_LIBRARY_LIST
1745     $FEATURE_LIST
1746     $LICENSE_LIST
1747     $LIBRARY_LIST
1748     $PROGRAM_LIST
1749     $SUBSYSTEM_LIST
1750     autodetect
1751     fontconfig
1752     linux_perf
1753     memory_poisoning
1754     neon_clobber_test
1755     ossfuzz
1756     pic
1757     thumb
1758     valgrind_backtrace
1759     xmm_clobber_test
1760     $COMPONENT_LIST
1761 "
1762
1763 THREADS_LIST="
1764     pthreads
1765     os2threads
1766     w32threads
1767 "
1768
1769 ATOMICS_LIST="
1770     atomics_gcc
1771     atomics_suncc
1772     atomics_win32
1773 "
1774
1775 AUTODETECT_LIBS="
1776     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1777     $HWACCEL_AUTODETECT_LIBRARY_LIST
1778     $THREADS_LIST
1779 "
1780
1781 ARCH_LIST="
1782     aarch64
1783     alpha
1784     arm
1785     avr32
1786     avr32_ap
1787     avr32_uc
1788     bfin
1789     ia64
1790     m68k
1791     mips
1792     mips64
1793     parisc
1794     ppc
1795     ppc64
1796     s390
1797     sh4
1798     sparc
1799     sparc64
1800     tilegx
1801     tilepro
1802     tomi
1803     x86
1804     x86_32
1805     x86_64
1806 "
1807
1808 ARCH_EXT_LIST_ARM="
1809     armv5te
1810     armv6
1811     armv6t2
1812     armv8
1813     neon
1814     vfp
1815     vfpv3
1816     setend
1817 "
1818
1819 ARCH_EXT_LIST_MIPS="
1820     mipsfpu
1821     mips32r2
1822     mips32r5
1823     mips64r2
1824     mips32r6
1825     mips64r6
1826     mipsdsp
1827     mipsdspr2
1828     msa
1829 "
1830
1831 ARCH_EXT_LIST_LOONGSON="
1832     loongson2
1833     loongson3
1834     mmi
1835 "
1836
1837 ARCH_EXT_LIST_X86_SIMD="
1838     aesni
1839     amd3dnow
1840     amd3dnowext
1841     avx
1842     avx2
1843     fma3
1844     fma4
1845     mmx
1846     mmxext
1847     sse
1848     sse2
1849     sse3
1850     sse4
1851     sse42
1852     ssse3
1853     xop
1854 "
1855
1856 ARCH_EXT_LIST_PPC="
1857     altivec
1858     dcbzl
1859     ldbrx
1860     power8
1861     ppc4xx
1862     vsx
1863 "
1864
1865 ARCH_EXT_LIST_X86="
1866     $ARCH_EXT_LIST_X86_SIMD
1867     cpunop
1868     i686
1869 "
1870
1871 ARCH_EXT_LIST="
1872     $ARCH_EXT_LIST_ARM
1873     $ARCH_EXT_LIST_PPC
1874     $ARCH_EXT_LIST_X86
1875     $ARCH_EXT_LIST_MIPS
1876     $ARCH_EXT_LIST_LOONGSON
1877 "
1878
1879 ARCH_FEATURES="
1880     aligned_stack
1881     fast_64bit
1882     fast_clz
1883     fast_cmov
1884     local_aligned_8
1885     local_aligned_16
1886     local_aligned_32
1887     simd_align_16
1888     simd_align_32
1889 "
1890
1891 BUILTIN_LIST="
1892     atomic_cas_ptr
1893     machine_rw_barrier
1894     MemoryBarrier
1895     mm_empty
1896     rdtsc
1897     sarestart
1898     sem_timedwait
1899     sync_val_compare_and_swap
1900 "
1901 HAVE_LIST_CMDLINE="
1902     inline_asm
1903     symver
1904     x86asm
1905 "
1906
1907 HAVE_LIST_PUB="
1908     bigendian
1909     fast_unaligned
1910 "
1911
1912 HEADERS_LIST="
1913     altivec_h
1914     arpa_inet_h
1915     asm_types_h
1916     cdio_paranoia_h
1917     cdio_paranoia_paranoia_h
1918     cuda_h
1919     d3d11_h
1920     dispatch_dispatch_h
1921     dev_bktr_ioctl_bt848_h
1922     dev_bktr_ioctl_meteor_h
1923     dev_ic_bt8xx_h
1924     dev_video_bktr_ioctl_bt848_h
1925     dev_video_meteor_ioctl_meteor_h
1926     direct_h
1927     dirent_h
1928     dlfcn_h
1929     dxgidebug_h
1930     dxva_h
1931     ES2_gl_h
1932     gsm_h
1933     io_h
1934     mach_mach_time_h
1935     machine_ioctl_bt848_h
1936     machine_ioctl_meteor_h
1937     malloc_h
1938     opencv2_core_core_c_h
1939     OpenGL_gl3_h
1940     poll_h
1941     soundcard_h
1942     stdatomic_h
1943     sys_mman_h
1944     sys_param_h
1945     sys_resource_h
1946     sys_select_h
1947     sys_soundcard_h
1948     sys_time_h
1949     sys_un_h
1950     sys_videoio_h
1951     termios_h
1952     udplite_h
1953     unistd_h
1954     valgrind_valgrind_h
1955     windows_h
1956     winsock2_h
1957 "
1958
1959 INTRINSICS_LIST="
1960     intrinsics_neon
1961 "
1962
1963 COMPLEX_FUNCS="
1964     cabs
1965     cexp
1966 "
1967
1968 MATH_FUNCS="
1969     atanf
1970     atan2f
1971     cbrt
1972     cbrtf
1973     copysign
1974     cosf
1975     erf
1976     exp2
1977     exp2f
1978     expf
1979     hypot
1980     isfinite
1981     isinf
1982     isnan
1983     ldexpf
1984     llrint
1985     llrintf
1986     log2
1987     log2f
1988     log10f
1989     lrint
1990     lrintf
1991     powf
1992     rint
1993     round
1994     roundf
1995     sinf
1996     trunc
1997     truncf
1998 "
1999
2000 SYSTEM_FUNCS="
2001     access
2002     aligned_malloc
2003     arc4random
2004     clock_gettime
2005     closesocket
2006     CommandLineToArgvW
2007     CoTaskMemFree
2008     CryptGenRandom
2009     fcntl
2010     flt_lim
2011     fork
2012     getaddrinfo
2013     gethrtime
2014     getopt
2015     GetProcessAffinityMask
2016     GetProcessMemoryInfo
2017     GetProcessTimes
2018     getrusage
2019     GetSystemTimeAsFileTime
2020     gettimeofday
2021     glob
2022     glXGetProcAddress
2023     gmtime_r
2024     inet_aton
2025     isatty
2026     jack_port_get_latency_range
2027     kbhit
2028     LoadLibrary
2029     localtime_r
2030     lstat
2031     lzo1x_999_compress
2032     mach_absolute_time
2033     MapViewOfFile
2034     memalign
2035     mkstemp
2036     mmap
2037     mprotect
2038     nanosleep
2039     PeekNamedPipe
2040     posix_memalign
2041     pthread_cancel
2042     sched_getaffinity
2043     SetConsoleTextAttribute
2044     SetConsoleCtrlHandler
2045     setmode
2046     setrlimit
2047     Sleep
2048     strerror_r
2049     sysconf
2050     sysctl
2051     usleep
2052     UTGetOSTypeFromString
2053     VirtualAlloc
2054     wglGetProcAddress
2055 "
2056
2057 TOOLCHAIN_FEATURES="
2058     as_dn_directive
2059     as_fpu_directive
2060     as_func
2061     as_object_arch
2062     asm_mod_q
2063     attribute_may_alias
2064     attribute_packed
2065     blocks_extension
2066     ebp_available
2067     ebx_available
2068     gnu_as
2069     gnu_windres
2070     ibm_asm
2071     inline_asm_direct_symbol_refs
2072     inline_asm_labels
2073     inline_asm_nonlocal_labels
2074     pragma_deprecated
2075     rsync_contimeout
2076     symver_asm_label
2077     symver_gnu_asm
2078     vfp_args
2079     xform_asm
2080     xmm_clobbers
2081 "
2082
2083 TYPES_LIST="
2084     CONDITION_VARIABLE_Ptr
2085     kCMVideoCodecType_HEVC
2086     socklen_t
2087     struct_addrinfo
2088     struct_group_source_req
2089     struct_ip_mreq_source
2090     struct_ipv6_mreq
2091     struct_msghdr_msg_flags
2092     struct_pollfd
2093     struct_rusage_ru_maxrss
2094     struct_sctp_event_subscribe
2095     struct_sockaddr_in6
2096     struct_sockaddr_sa_len
2097     struct_sockaddr_storage
2098     struct_stat_st_mtim_tv_nsec
2099     struct_v4l2_frmivalenum_discrete
2100 "
2101
2102 HAVE_LIST="
2103     $ARCH_EXT_LIST
2104     $(add_suffix _external $ARCH_EXT_LIST)
2105     $(add_suffix _inline   $ARCH_EXT_LIST)
2106     $ARCH_FEATURES
2107     $ATOMICS_LIST
2108     $BUILTIN_LIST
2109     $COMPLEX_FUNCS
2110     $HAVE_LIST_CMDLINE
2111     $HAVE_LIST_PUB
2112     $HEADERS_LIST
2113     $INTRINSICS_LIST
2114     $MATH_FUNCS
2115     $SYSTEM_FUNCS
2116     $THREADS_LIST
2117     $TOOLCHAIN_FEATURES
2118     $TYPES_LIST
2119     atomics_native
2120     dos_paths
2121     libc_msvcrt
2122     makeinfo
2123     makeinfo_html
2124     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2125     perl
2126     pod2man
2127     section_data_rel_ro
2128     texi2html
2129     threads
2130     uwp
2131     vaapi_drm
2132     vaapi_x11
2133     vdpau_x11
2134     winrt
2135 "
2136
2137 # options emitted with CONFIG_ prefix but not available on the command line
2138 CONFIG_EXTRA="
2139     aandcttables
2140     ac3dsp
2141     audio_frame_queue
2142     audiodsp
2143     blockdsp
2144     bswapdsp
2145     cabac
2146     cbs
2147     cbs_h264
2148     cbs_h265
2149     cbs_mpeg2
2150     dirac_parse
2151     dvprofile
2152     exif
2153     faandct
2154     faanidct
2155     fdctdsp
2156     flacdsp
2157     fmtconvert
2158     frame_thread_encoder
2159     g722dsp
2160     golomb
2161     gplv3
2162     h263dsp
2163     h264chroma
2164     h264dsp
2165     h264parse
2166     h264pred
2167     h264qpel
2168     hevcparse
2169     hpeldsp
2170     huffman
2171     huffyuvdsp
2172     huffyuvencdsp
2173     idctdsp
2174     iirfilter
2175     mdct15
2176     intrax8
2177     iso_media
2178     ividsp
2179     jpegtables
2180     lgplv3
2181     libx262
2182     llauddsp
2183     llviddsp
2184     llvidencdsp
2185     lpc
2186     lzf
2187     me_cmp
2188     mpeg_er
2189     mpegaudio
2190     mpegaudiodsp
2191     mpegaudioheader
2192     mpegvideo
2193     mpegvideoenc
2194     mss34dsp
2195     pixblockdsp
2196     qpeldsp
2197     qsv
2198     qsvdec
2199     qsvenc
2200     rangecoder
2201     riffdec
2202     riffenc
2203     rtpdec
2204     rtpenc_chain
2205     rv34dsp
2206     sinewin
2207     snappy
2208     srtp
2209     startcode
2210     texturedsp
2211     texturedspenc
2212     tpeldsp
2213     vaapi_1
2214     vaapi_encode
2215     vc1dsp
2216     videodsp
2217     vp3dsp
2218     vp56dsp
2219     vp8dsp
2220     wma_freqs
2221     wmv2dsp
2222 "
2223
2224 CMDLINE_SELECT="
2225     $ARCH_EXT_LIST
2226     $CONFIG_LIST
2227     $HAVE_LIST_CMDLINE
2228     $THREADS_LIST
2229     asm
2230     cross_compile
2231     debug
2232     extra_warnings
2233     logging
2234     lto
2235     optimizations
2236     rpath
2237     stripping
2238 "
2239
2240 PATHS_LIST="
2241     bindir
2242     datadir
2243     docdir
2244     incdir
2245     libdir
2246     mandir
2247     pkgconfigdir
2248     prefix
2249     shlibdir
2250     install_name_dir
2251 "
2252
2253 CMDLINE_SET="
2254     $PATHS_LIST
2255     ar
2256     arch
2257     as
2258     assert_level
2259     build_suffix
2260     cc
2261     objcc
2262     cpu
2263     cross_prefix
2264     custom_allocator
2265     cxx
2266     dep_cc
2267     doxygen
2268     env
2269     extra_version
2270     gas
2271     host_cc
2272     host_cflags
2273     host_extralibs
2274     host_ld
2275     host_ldflags
2276     host_os
2277     ignore_tests
2278     install
2279     ld
2280     ln_s
2281     logfile
2282     malloc_prefix
2283     nm
2284     optflags
2285     nvccflags
2286     pkg_config
2287     pkg_config_flags
2288     progs_suffix
2289     random_seed
2290     ranlib
2291     samples
2292     strip
2293     sws_max_filter_size
2294     sysinclude
2295     sysroot
2296     target_exec
2297     target_os
2298     target_path
2299     target_samples
2300     tempprefix
2301     toolchain
2302     valgrind
2303     x86asmexe
2304 "
2305
2306 CMDLINE_APPEND="
2307     extra_cflags
2308     extra_cxxflags
2309     extra_objcflags
2310     host_cppflags
2311 "
2312
2313 # code dependency declarations
2314
2315 # architecture extensions
2316
2317 armv5te_deps="arm"
2318 armv6_deps="arm"
2319 armv6t2_deps="arm"
2320 armv8_deps="aarch64"
2321 neon_deps_any="aarch64 arm"
2322 intrinsics_neon_deps="neon"
2323 vfp_deps_any="aarch64 arm"
2324 vfpv3_deps="vfp"
2325 setend_deps="arm"
2326
2327 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2328
2329 loongson2_deps="mips"
2330 loongson3_deps="mips"
2331 mipsfpu_deps="mips"
2332 mipsdsp_deps="mips"
2333 mipsdspr2_deps="mips"
2334 mips32r2_deps="mips"
2335 mips32r5_deps="mips"
2336 mips32r6_deps="mips"
2337 mips64r2_deps="mips"
2338 mips64r6_deps="mips"
2339 msa_deps="mipsfpu"
2340 mmi_deps="mips"
2341
2342 altivec_deps="ppc"
2343 dcbzl_deps="ppc"
2344 ldbrx_deps="ppc"
2345 ppc4xx_deps="ppc"
2346 vsx_deps="altivec"
2347 power8_deps="vsx"
2348
2349 cpunop_deps="i686"
2350 x86_64_select="i686"
2351 x86_64_suggest="fast_cmov"
2352
2353 amd3dnow_deps="mmx"
2354 amd3dnowext_deps="amd3dnow"
2355 i686_deps="x86"
2356 mmx_deps="x86"
2357 mmxext_deps="mmx"
2358 sse_deps="mmxext"
2359 sse2_deps="sse"
2360 sse3_deps="sse2"
2361 ssse3_deps="sse3"
2362 sse4_deps="ssse3"
2363 sse42_deps="sse4"
2364 aesni_deps="sse42"
2365 avx_deps="sse42"
2366 xop_deps="avx"
2367 fma3_deps="avx"
2368 fma4_deps="avx"
2369 avx2_deps="avx"
2370
2371 mmx_external_deps="x86asm"
2372 mmx_inline_deps="inline_asm"
2373 mmx_suggest="mmx_external mmx_inline"
2374
2375 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2376     eval dep=\$${ext}_deps
2377     eval ${ext}_external_deps='"${dep}_external"'
2378     eval ${ext}_inline_deps='"${dep}_inline"'
2379     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2380 done
2381
2382 aligned_stack_if_any="aarch64 ppc x86"
2383 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2384 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2385 fast_unaligned_if_any="aarch64 ppc x86"
2386 simd_align_16_if_any="altivec neon sse"
2387 simd_align_32_if_any="avx"
2388
2389 # system capabilities
2390 symver_if_any="symver_asm_label symver_gnu_asm"
2391 valgrind_backtrace_conflict="optimizations"
2392 valgrind_backtrace_deps="valgrind_valgrind_h"
2393
2394 # threading support
2395 atomics_gcc_if="sync_val_compare_and_swap"
2396 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2397 atomics_win32_if="MemoryBarrier"
2398 atomics_native_if_any="$ATOMICS_LIST"
2399 w32threads_deps="atomics_native"
2400 threads_if_any="$THREADS_LIST"
2401
2402 # subsystems
2403 cbs_h264_select="cbs golomb"
2404 cbs_h265_select="cbs golomb"
2405 cbs_mpeg2_select="cbs"
2406 dct_select="rdft"
2407 dirac_parse_select="golomb"
2408 error_resilience_select="me_cmp"
2409 faandct_deps="faan fdctdsp"
2410 faanidct_deps="faan idctdsp"
2411 h264dsp_select="startcode"
2412 hevcparse_select="golomb"
2413 frame_thread_encoder_deps="encoders threads"
2414 intrax8_select="blockdsp idctdsp"
2415 mdct_select="fft"
2416 mdct15_select="fft"
2417 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2418 mpeg_er_select="error_resilience"
2419 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2420 mpegaudiodsp_select="dct"
2421 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2422 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2423 vc1dsp_select="h264chroma qpeldsp startcode"
2424 rdft_select="fft"
2425
2426 # decoders / encoders
2427 aac_decoder_select="mdct15 mdct sinewin"
2428 aac_fixed_decoder_select="mdct sinewin"
2429 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2430 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2431 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2432 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2433 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2434 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2435 adpcm_g722_decoder_select="g722dsp"
2436 adpcm_g722_encoder_select="g722dsp"
2437 aic_decoder_select="golomb idctdsp"
2438 alac_encoder_select="lpc"
2439 als_decoder_select="bswapdsp"
2440 amrnb_decoder_select="lsp"
2441 amrwb_decoder_select="lsp"
2442 amv_decoder_select="sp5x_decoder exif"
2443 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2444 ape_decoder_select="bswapdsp llauddsp"
2445 apng_decoder_select="zlib"
2446 apng_encoder_select="llvidencdsp zlib"
2447 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2448 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2449 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2450 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2451 atrac1_decoder_select="mdct sinewin"
2452 atrac3_decoder_select="mdct"
2453 atrac3p_decoder_select="mdct sinewin"
2454 avrn_decoder_select="exif jpegtables"
2455 bink_decoder_select="blockdsp hpeldsp"
2456 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2457 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2458 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2459 clearvideo_decoder_select="idctdsp"
2460 cllc_decoder_select="bswapdsp"
2461 comfortnoise_encoder_select="lpc"
2462 cook_decoder_select="audiodsp mdct sinewin"
2463 cscd_decoder_select="lzo"
2464 cscd_decoder_suggest="zlib"
2465 dca_decoder_select="mdct"
2466 dds_decoder_select="texturedsp"
2467 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2468 dnxhd_decoder_select="blockdsp idctdsp"
2469 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2470 dolby_e_decoder_select="mdct"
2471 dvvideo_decoder_select="dvprofile idctdsp"
2472 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2473 dxa_decoder_select="zlib"
2474 dxv_decoder_select="lzf texturedsp"
2475 eac3_decoder_select="ac3_decoder"
2476 eac3_encoder_select="ac3_encoder"
2477 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2478 eatgq_decoder_select="aandcttables"
2479 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2480 exr_decoder_select="zlib"
2481 ffv1_decoder_select="rangecoder"
2482 ffv1_encoder_select="rangecoder"
2483 ffvhuff_decoder_select="huffyuv_decoder"
2484 ffvhuff_encoder_select="huffyuv_encoder"
2485 fic_decoder_select="golomb"
2486 flac_decoder_select="flacdsp"
2487 flac_encoder_select="bswapdsp flacdsp lpc"
2488 flashsv2_decoder_select="zlib"
2489 flashsv2_encoder_select="zlib"
2490 flashsv_decoder_select="zlib"
2491 flashsv_encoder_select="zlib"
2492 flv_decoder_select="h263_decoder"
2493 flv_encoder_select="h263_encoder"
2494 fourxm_decoder_select="blockdsp bswapdsp"
2495 fraps_decoder_select="bswapdsp huffman"
2496 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2497 g729_decoder_select="audiodsp"
2498 h261_decoder_select="mpegvideo"
2499 h261_encoder_select="aandcttables mpegvideoenc"
2500 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2501 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2502 h263i_decoder_select="h263_decoder"
2503 h263p_decoder_select="h263_decoder"
2504 h263p_encoder_select="h263_encoder"
2505 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2506 h264_decoder_suggest="error_resilience"
2507 hap_decoder_select="snappy texturedsp"
2508 hap_encoder_deps="libsnappy"
2509 hap_encoder_select="texturedspenc"
2510 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2511 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2512 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2513 iac_decoder_select="imc_decoder"
2514 imc_decoder_select="bswapdsp fft mdct sinewin"
2515 indeo3_decoder_select="hpeldsp"
2516 indeo4_decoder_select="ividsp"
2517 indeo5_decoder_select="ividsp"
2518 interplay_video_decoder_select="hpeldsp"
2519 jpegls_decoder_select="mjpeg_decoder"
2520 jv_decoder_select="blockdsp"
2521 lagarith_decoder_select="llviddsp"
2522 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2523 magicyuv_decoder_select="llviddsp"
2524 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2525 metasound_decoder_select="lsp mdct sinewin"
2526 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2527 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2528 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2529 mjpegb_decoder_select="mjpeg_decoder"
2530 mlp_decoder_select="mlp_parser"
2531 mlp_encoder_select="lpc"
2532 motionpixels_decoder_select="bswapdsp"
2533 mp1_decoder_select="mpegaudio"
2534 mp1float_decoder_select="mpegaudio"
2535 mp2_decoder_select="mpegaudio"
2536 mp2float_decoder_select="mpegaudio"
2537 mp3_decoder_select="mpegaudio"
2538 mp3adu_decoder_select="mpegaudio"
2539 mp3adufloat_decoder_select="mpegaudio"
2540 mp3float_decoder_select="mpegaudio"
2541 mp3on4_decoder_select="mpegaudio"
2542 mp3on4float_decoder_select="mpegaudio"
2543 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2544 mpc8_decoder_select="mpegaudiodsp"
2545 mpegvideo_decoder_select="mpegvideo"
2546 mpeg1video_decoder_select="mpegvideo"
2547 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2548 mpeg2video_decoder_select="mpegvideo"
2549 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2550 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2551 mpeg4_encoder_select="h263_encoder"
2552 msa1_decoder_select="mss34dsp"
2553 mscc_decoder_select="zlib"
2554 msmpeg4v1_decoder_select="h263_decoder"
2555 msmpeg4v2_decoder_select="h263_decoder"
2556 msmpeg4v2_encoder_select="h263_encoder"
2557 msmpeg4v3_decoder_select="h263_decoder"
2558 msmpeg4v3_encoder_select="h263_encoder"
2559 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2560 mts2_decoder_select="mss34dsp"
2561 mxpeg_decoder_select="mjpeg_decoder"
2562 nellymoser_decoder_select="mdct sinewin"
2563 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2564 nuv_decoder_select="idctdsp lzo"
2565 on2avc_decoder_select="mdct"
2566 opus_decoder_deps="swresample"
2567 opus_decoder_select="mdct15"
2568 opus_encoder_select="audio_frame_queue mdct15"
2569 png_decoder_select="zlib"
2570 png_encoder_select="llvidencdsp zlib"
2571 prores_decoder_select="blockdsp idctdsp"
2572 prores_encoder_select="fdctdsp"
2573 qcelp_decoder_select="lsp"
2574 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2575 ra_144_decoder_select="audiodsp"
2576 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2577 ralf_decoder_select="golomb"
2578 rawvideo_decoder_select="bswapdsp"
2579 rscc_decoder_select="zlib"
2580 rtjpeg_decoder_select="me_cmp"
2581 rv10_decoder_select="h263_decoder"
2582 rv10_encoder_select="h263_encoder"
2583 rv20_decoder_select="h263_decoder"
2584 rv20_encoder_select="h263_encoder"
2585 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2586 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2587 screenpresso_decoder_select="zlib"
2588 shorten_decoder_select="bswapdsp"
2589 sipr_decoder_select="lsp"
2590 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2591 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2592 sonic_decoder_select="golomb rangecoder"
2593 sonic_encoder_select="golomb rangecoder"
2594 sonic_ls_encoder_select="golomb rangecoder"
2595 sp5x_decoder_select="mjpeg_decoder"
2596 srgc_decoder_select="zlib"
2597 svq1_decoder_select="hpeldsp"
2598 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2599 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2600 svq3_decoder_suggest="zlib"
2601 tak_decoder_select="audiodsp"
2602 tdsc_decoder_select="zlib mjpeg_decoder"
2603 theora_decoder_select="vp3_decoder"
2604 thp_decoder_select="mjpeg_decoder"
2605 tiff_decoder_suggest="zlib lzma"
2606 tiff_encoder_suggest="zlib"
2607 truehd_decoder_select="mlp_parser"
2608 truehd_encoder_select="lpc"
2609 truemotion2_decoder_select="bswapdsp"
2610 truespeech_decoder_select="bswapdsp"
2611 tscc_decoder_select="zlib"
2612 twinvq_decoder_select="mdct lsp sinewin"
2613 txd_decoder_select="texturedsp"
2614 utvideo_decoder_select="bswapdsp llviddsp"
2615 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2616 vble_decoder_select="llviddsp"
2617 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2618 vc1_qsv_decoder_deps="libmfx"
2619 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2620 vc1image_decoder_select="vc1_decoder"
2621 vorbis_decoder_select="mdct"
2622 vorbis_encoder_select="mdct"
2623 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2624 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2625 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2626 vp6a_decoder_select="vp6_decoder"
2627 vp6f_decoder_select="vp6_decoder"
2628 vp7_decoder_select="h264pred videodsp vp8dsp"
2629 vp8_decoder_select="h264pred videodsp vp8dsp"
2630 vp9_decoder_select="videodsp vp9_parser"
2631 webp_decoder_select="vp8_decoder exif"
2632 wmalossless_decoder_select="llauddsp"
2633 wmapro_decoder_select="mdct sinewin wma_freqs"
2634 wmav1_decoder_select="mdct sinewin wma_freqs"
2635 wmav1_encoder_select="mdct sinewin wma_freqs"
2636 wmav2_decoder_select="mdct sinewin wma_freqs"
2637 wmav2_encoder_select="mdct sinewin wma_freqs"
2638 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2639 wmv1_decoder_select="h263_decoder"
2640 wmv1_encoder_select="h263_encoder"
2641 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2642 wmv2_encoder_select="h263_encoder wmv2dsp"
2643 wmv3_decoder_select="vc1_decoder"
2644 wmv3image_decoder_select="wmv3_decoder"
2645 xma1_decoder_select="wmapro_decoder"
2646 xma2_decoder_select="wmapro_decoder"
2647 zerocodec_decoder_select="zlib"
2648 zlib_decoder_select="zlib"
2649 zlib_encoder_select="zlib"
2650 zmbv_decoder_select="zlib"
2651 zmbv_encoder_select="zlib"
2652
2653 # hardware accelerators
2654 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2655 cuda_deps_any="libdl LoadLibrary"
2656 cuvid_deps="cuda"
2657 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2658 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2659 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2660 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2661 xvmc_deps="X11_extensions_XvMClib_h"
2662
2663 h263_vaapi_hwaccel_deps="vaapi"
2664 h263_vaapi_hwaccel_select="h263_decoder"
2665 h263_videotoolbox_hwaccel_deps="videotoolbox"
2666 h263_videotoolbox_hwaccel_select="h263_decoder"
2667 h264_cuvid_hwaccel_deps="cuda cuvid"
2668 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2669 h264_d3d11va_hwaccel_deps="d3d11va"
2670 h264_d3d11va_hwaccel_select="h264_decoder"
2671 h264_d3d11va2_hwaccel_deps="d3d11va"
2672 h264_d3d11va2_hwaccel_select="h264_decoder"
2673 h264_dxva2_hwaccel_deps="dxva2"
2674 h264_dxva2_hwaccel_select="h264_decoder"
2675 h264_mediacodec_hwaccel_deps="mediacodec"
2676 h264_mmal_hwaccel_deps="mmal"
2677 h264_qsv_hwaccel_deps="libmfx"
2678 h264_vaapi_hwaccel_deps="vaapi"
2679 h264_vaapi_hwaccel_select="h264_decoder"
2680 h264_vdpau_hwaccel_deps="vdpau"
2681 h264_vdpau_hwaccel_select="h264_decoder"
2682 h264_videotoolbox_hwaccel_deps="videotoolbox"
2683 h264_videotoolbox_hwaccel_select="h264_decoder"
2684 hevc_cuvid_hwaccel_deps="cuda cuvid"
2685 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2686 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2687 hevc_d3d11va_hwaccel_select="hevc_decoder"
2688 hevc_mediacodec_hwaccel_deps="mediacodec"
2689 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2690 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2691 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2692 hevc_dxva2_hwaccel_select="hevc_decoder"
2693 hevc_qsv_hwaccel_deps="libmfx"
2694 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2695 hevc_vaapi_hwaccel_select="hevc_decoder"
2696 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2697 hevc_vdpau_hwaccel_select="hevc_decoder"
2698 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2699 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2700 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2701 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2702 mpeg_xvmc_hwaccel_deps="xvmc"
2703 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2704 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2705 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2706 mpeg1_vdpau_hwaccel_deps="vdpau"
2707 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2708 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2709 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2710 mpeg1_xvmc_hwaccel_deps="xvmc"
2711 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2712 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2713 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2714 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2715 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2716 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2717 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2718 mpeg2_dxva2_hwaccel_deps="dxva2"
2719 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2720 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2721 mpeg2_mmal_hwaccel_deps="mmal"
2722 mpeg2_qsv_hwaccel_deps="libmfx"
2723 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2724 mpeg2_vaapi_hwaccel_deps="vaapi"
2725 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2726 mpeg2_vdpau_hwaccel_deps="vdpau"
2727 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2728 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2729 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2730 mpeg2_xvmc_hwaccel_deps="xvmc"
2731 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2732 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2733 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2734 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2735 mpeg4_mmal_hwaccel_deps="mmal"
2736 mpeg4_vaapi_hwaccel_deps="vaapi"
2737 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2738 mpeg4_vdpau_hwaccel_deps="vdpau"
2739 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2740 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2741 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2742 vc1_cuvid_hwaccel_deps="cuda cuvid"
2743 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2744 vc1_d3d11va_hwaccel_deps="d3d11va"
2745 vc1_d3d11va_hwaccel_select="vc1_decoder"
2746 vc1_d3d11va2_hwaccel_deps="d3d11va"
2747 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2748 vc1_dxva2_hwaccel_deps="dxva2"
2749 vc1_dxva2_hwaccel_select="vc1_decoder"
2750 vc1_mmal_hwaccel_deps="mmal"
2751 vc1_qsv_hwaccel_deps="libmfx"
2752 vc1_qsv_hwaccel_select="qsvdec_vc1"
2753 vc1_vaapi_hwaccel_deps="vaapi"
2754 vc1_vaapi_hwaccel_select="vc1_decoder"
2755 vc1_vdpau_hwaccel_deps="vdpau"
2756 vc1_vdpau_hwaccel_select="vc1_decoder"
2757 vp8_cuvid_hwaccel_deps="cuda cuvid"
2758 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2759 vp9_cuvid_hwaccel_deps="cuda cuvid"
2760 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2761 vp8_mediacodec_hwaccel_deps="mediacodec"
2762 vp8_qsv_hwaccel_deps="libmfx"
2763 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2764 vp9_d3d11va_hwaccel_select="vp9_decoder"
2765 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2766 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2767 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2768 vp9_dxva2_hwaccel_select="vp9_decoder"
2769 vp9_mediacodec_hwaccel_deps="mediacodec"
2770 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2771 vp9_vaapi_hwaccel_select="vp9_decoder"
2772 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2773 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2774 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2775 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2776 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2777
2778 # hardware-accelerated codecs
2779 omx_deps="libdl pthreads"
2780 omx_rpi_select="omx"
2781 qsvdec_select="qsv"
2782 qsvenc_select="qsv"
2783 vaapi_encode_deps="vaapi"
2784 v4l2_m2m_deps_any="linux_videodev2_h"
2785
2786 hwupload_cuda_filter_deps="cuda"
2787 scale_npp_filter_deps="cuda libnpp"
2788 scale_cuda_filter_deps="cuda_sdk"
2789 thumbnail_cuda_filter_deps="cuda_sdk"
2790
2791 nvenc_deps="cuda"
2792 nvenc_deps_any="libdl LoadLibrary"
2793 nvenc_encoder_deps="nvenc"
2794
2795 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2796 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2797 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2798 h264_cuvid_decoder_deps="cuda cuvid"
2799 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2800 h264_mediacodec_decoder_deps="mediacodec"
2801 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2802 h264_mmal_decoder_deps="mmal"
2803 h264_nvenc_encoder_deps="nvenc"
2804 h264_omx_encoder_deps="omx"
2805 h264_qsv_decoder_deps="libmfx"
2806 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2807 h264_qsv_encoder_deps="libmfx"
2808 h264_qsv_encoder_select="qsvenc"
2809 h264_rkmpp_decoder_deps="rkmpp"
2810 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2811 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2812 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2813 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2814 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2815 hevc_cuvid_decoder_deps="cuda cuvid"
2816 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2817 hevc_mediacodec_decoder_deps="mediacodec"
2818 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2819 hevc_nvenc_encoder_deps="nvenc"
2820 hevc_qsv_decoder_deps="libmfx"
2821 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2822 hevc_qsv_encoder_deps="libmfx"
2823 hevc_qsv_encoder_select="hevcparse qsvenc"
2824 hevc_rkmpp_decoder_deps="rkmpp"
2825 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2826 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2827 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2828 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2829 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2830 mjpeg_cuvid_decoder_deps="cuda cuvid"
2831 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2832 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2833 mpeg1_cuvid_decoder_deps="cuda cuvid"
2834 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2835 mpeg2_crystalhd_decoder_select="crystalhd"
2836 mpeg2_cuvid_decoder_deps="cuda cuvid"
2837 mpeg2_mmal_decoder_deps="mmal"
2838 mpeg2_mediacodec_decoder_deps="mediacodec"
2839 mpeg2_qsv_decoder_deps="libmfx"
2840 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2841 mpeg2_qsv_encoder_deps="libmfx"
2842 mpeg2_qsv_encoder_select="qsvenc"
2843 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2844 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2845 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2846 mpeg4_crystalhd_decoder_select="crystalhd"
2847 mpeg4_cuvid_decoder_deps="cuda cuvid"
2848 mpeg4_mediacodec_decoder_deps="mediacodec"
2849 mpeg4_mmal_decoder_deps="mmal"
2850 mpeg4_omx_encoder_deps="omx"
2851 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2852 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2853 msmpeg4_crystalhd_decoder_select="crystalhd"
2854 nvenc_h264_encoder_select="h264_nvenc_encoder"
2855 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2856 vc1_crystalhd_decoder_select="crystalhd"
2857 vc1_cuvid_decoder_deps="cuda cuvid"
2858 vc1_mmal_decoder_deps="mmal"
2859 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2860 vp8_cuvid_decoder_deps="cuda cuvid"
2861 vp8_mediacodec_decoder_deps="mediacodec"
2862 vp8_qsv_decoder_deps="libmfx"
2863 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2864 vp8_rkmpp_decoder_deps="rkmpp"
2865 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2866 vp8_vaapi_encoder_select="vaapi_encode"
2867 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2868 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2869 vp9_cuvid_decoder_deps="cuda cuvid"
2870 vp9_mediacodec_decoder_deps="mediacodec"
2871 vp9_rkmpp_decoder_deps="rkmpp"
2872 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2873 vp9_vaapi_encoder_select="vaapi_encode"
2874 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2875 wmv3_crystalhd_decoder_select="crystalhd"
2876
2877 # parsers
2878 h264_parser_select="golomb h264dsp h264parse"
2879 hevc_parser_select="hevcparse"
2880 mpegaudio_parser_select="mpegaudioheader"
2881 mpegvideo_parser_select="mpegvideo"
2882 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2883 vc1_parser_select="vc1dsp"
2884
2885 # bitstream_filters
2886 h264_metadata_bsf_select="cbs_h264"
2887 h264_redundant_pps_bsf_select="cbs_h264"
2888 hevc_metadata_bsf_select="cbs_h265"
2889 mjpeg2jpeg_bsf_select="jpegtables"
2890 mpeg2_metadata_bsf_select="cbs_mpeg2"
2891 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2892
2893 # external libraries
2894 aac_at_decoder_deps="audiotoolbox"
2895 ac3_at_decoder_deps="audiotoolbox"
2896 ac3_at_decoder_select="ac3_parser"
2897 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2898 alac_at_decoder_deps="audiotoolbox"
2899 amr_nb_at_decoder_deps="audiotoolbox"
2900 avisynth_deps_any="libdl LoadLibrary"
2901 avisynth_demuxer_deps="avisynth"
2902 avisynth_demuxer_select="riffdec"
2903 eac3_at_decoder_deps="audiotoolbox"
2904 eac3_at_decoder_select="ac3_parser"
2905 gsm_ms_at_decoder_deps="audiotoolbox"
2906 ilbc_at_decoder_deps="audiotoolbox"
2907 mp1_at_decoder_deps="audiotoolbox"
2908 mp2_at_decoder_deps="audiotoolbox"
2909 mp3_at_decoder_deps="audiotoolbox"
2910 mp1_at_decoder_select="mpegaudioheader"
2911 mp2_at_decoder_select="mpegaudioheader"
2912 mp3_at_decoder_select="mpegaudioheader"
2913 pcm_alaw_at_decoder_deps="audiotoolbox"
2914 pcm_mulaw_at_decoder_deps="audiotoolbox"
2915 qdmc_at_decoder_deps="audiotoolbox"
2916 qdm2_at_decoder_deps="audiotoolbox"
2917 aac_at_encoder_deps="audiotoolbox"
2918 aac_at_encoder_select="audio_frame_queue"
2919 alac_at_encoder_deps="audiotoolbox"
2920 alac_at_encoder_select="audio_frame_queue"
2921 ilbc_at_encoder_deps="audiotoolbox"
2922 ilbc_at_encoder_select="audio_frame_queue"
2923 pcm_alaw_at_encoder_deps="audiotoolbox"
2924 pcm_alaw_at_encoder_select="audio_frame_queue"
2925 pcm_mulaw_at_encoder_deps="audiotoolbox"
2926 pcm_mulaw_at_encoder_select="audio_frame_queue"
2927 chromaprint_muxer_deps="chromaprint"
2928 h264_videotoolbox_encoder_deps="pthreads"
2929 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2930 libcelt_decoder_deps="libcelt"
2931 libfdk_aac_decoder_deps="libfdk_aac"
2932 libfdk_aac_encoder_deps="libfdk_aac"
2933 libfdk_aac_encoder_select="audio_frame_queue"
2934 libgme_demuxer_deps="libgme"
2935 libgsm_decoder_deps="libgsm"
2936 libgsm_encoder_deps="libgsm"
2937 libgsm_ms_decoder_deps="libgsm"
2938 libgsm_ms_encoder_deps="libgsm"
2939 libilbc_decoder_deps="libilbc"
2940 libilbc_encoder_deps="libilbc"
2941 libkvazaar_encoder_deps="libkvazaar"
2942 libmodplug_demuxer_deps="libmodplug"
2943 libmp3lame_encoder_deps="libmp3lame"
2944 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2945 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2946 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2947 libopencore_amrnb_encoder_select="audio_frame_queue"
2948 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2949 libopenh264_decoder_deps="libopenh264"
2950 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2951 libopenh264_encoder_deps="libopenh264"
2952 libopenjpeg_decoder_deps="libopenjpeg"
2953 libopenjpeg_encoder_deps="libopenjpeg"
2954 libopenmpt_demuxer_deps="libopenmpt"
2955 libopus_decoder_deps="libopus"
2956 libopus_encoder_deps="libopus"
2957 libopus_encoder_select="audio_frame_queue"
2958 librsvg_decoder_deps="librsvg"
2959 libshine_encoder_deps="libshine"
2960 libshine_encoder_select="audio_frame_queue"
2961 libspeex_decoder_deps="libspeex"
2962 libspeex_encoder_deps="libspeex"
2963 libspeex_encoder_select="audio_frame_queue"
2964 libtheora_encoder_deps="libtheora"
2965 libtwolame_encoder_deps="libtwolame"
2966 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2967 libvorbis_decoder_deps="libvorbis"
2968 libvorbis_encoder_deps="libvorbis libvorbisenc"
2969 libvorbis_encoder_select="audio_frame_queue"
2970 libvpx_vp8_decoder_deps="libvpx"
2971 libvpx_vp8_encoder_deps="libvpx"
2972 libvpx_vp9_decoder_deps="libvpx"
2973 libvpx_vp9_encoder_deps="libvpx"
2974 libwavpack_encoder_deps="libwavpack"
2975 libwavpack_encoder_select="audio_frame_queue"
2976 libwebp_encoder_deps="libwebp"
2977 libwebp_anim_encoder_deps="libwebp"
2978 libx262_encoder_deps="libx262"
2979 libx264_encoder_deps="libx264"
2980 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2981 libx264rgb_encoder_select="libx264_encoder"
2982 libx265_encoder_deps="libx265"
2983 libxavs_encoder_deps="libxavs"
2984 libxvid_encoder_deps="libxvid"
2985 libzvbi_teletext_decoder_deps="libzvbi"
2986 videotoolbox_suggest="coreservices"
2987 videotoolbox_deps="corefoundation coremedia corevideo"
2988 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2989
2990 # demuxers / muxers
2991 ac3_demuxer_select="ac3_parser"
2992 aiff_muxer_select="iso_media"
2993 asf_demuxer_select="riffdec"
2994 asf_o_demuxer_select="riffdec"
2995 asf_muxer_select="riffenc"
2996 asf_stream_muxer_select="asf_muxer"
2997 avi_demuxer_select="iso_media riffdec exif"
2998 avi_muxer_select="riffenc"
2999 caf_demuxer_select="iso_media riffdec"
3000 caf_muxer_select="iso_media"
3001 dash_muxer_select="mp4_muxer"
3002 dash_demuxer_deps="libxml2"
3003 dirac_demuxer_select="dirac_parser"
3004 dts_demuxer_select="dca_parser"
3005 dtshd_demuxer_select="dca_parser"
3006 dv_demuxer_select="dvprofile"
3007 dv_muxer_select="dvprofile"
3008 dxa_demuxer_select="riffdec"
3009 eac3_demuxer_select="ac3_parser"
3010 f4v_muxer_select="mov_muxer"
3011 fifo_muxer_deps="threads"
3012 flac_demuxer_select="flac_parser"
3013 hds_muxer_select="flv_muxer"
3014 hls_muxer_select="mpegts_muxer"
3015 hls_muxer_suggest="gcrypt openssl"
3016 image2_alias_pix_demuxer_select="image2_demuxer"
3017 image2_brender_pix_demuxer_select="image2_demuxer"
3018 ipod_muxer_select="mov_muxer"
3019 ismv_muxer_select="mov_muxer"
3020 matroska_audio_muxer_select="matroska_muxer"
3021 matroska_demuxer_select="iso_media riffdec"
3022 matroska_demuxer_suggest="bzlib lzo zlib"
3023 matroska_muxer_select="iso_media riffenc"
3024 mmf_muxer_select="riffenc"
3025 mov_demuxer_select="iso_media riffdec"
3026 mov_demuxer_suggest="zlib"
3027 mov_muxer_select="iso_media riffenc rtpenc_chain"
3028 mp3_demuxer_select="mpegaudio_parser"
3029 mp3_muxer_select="mpegaudioheader"
3030 mp4_muxer_select="mov_muxer"
3031 mpegts_demuxer_select="iso_media"
3032 mpegts_muxer_select="adts_muxer latm_muxer"
3033 mpegtsraw_demuxer_select="mpegts_demuxer"
3034 mxf_d10_muxer_select="mxf_muxer"
3035 mxf_opatom_muxer_select="mxf_muxer"
3036 nut_muxer_select="riffenc"
3037 nuv_demuxer_select="riffdec"
3038 oga_muxer_select="ogg_muxer"
3039 ogg_demuxer_select="dirac_parse"
3040 ogv_muxer_select="ogg_muxer"
3041 opus_muxer_select="ogg_muxer"
3042 psp_muxer_select="mov_muxer"
3043 rtp_demuxer_select="sdp_demuxer"
3044 rtp_muxer_select="golomb"
3045 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3046 rtsp_demuxer_select="http_protocol rtpdec"
3047 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3048 sap_demuxer_select="sdp_demuxer"
3049 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3050 sdp_demuxer_select="rtpdec"
3051 smoothstreaming_muxer_select="ismv_muxer"
3052 spdif_muxer_select="aac_parser"
3053 spx_muxer_select="ogg_muxer"
3054 swf_demuxer_suggest="zlib"
3055 tak_demuxer_select="tak_parser"
3056 tg2_muxer_select="mov_muxer"
3057 tgp_muxer_select="mov_muxer"
3058 vobsub_demuxer_select="mpegps_demuxer"
3059 w64_demuxer_select="wav_demuxer"
3060 w64_muxer_select="wav_muxer"
3061 wav_demuxer_select="riffdec"
3062 wav_muxer_select="riffenc"
3063 webm_muxer_select="iso_media riffenc"
3064 webm_dash_manifest_demuxer_select="matroska_demuxer"
3065 wtv_demuxer_select="mpegts_demuxer riffdec"
3066 wtv_muxer_select="mpegts_muxer riffenc"
3067 xmv_demuxer_select="riffdec"
3068 xwma_demuxer_select="riffdec"
3069
3070 # indevs / outdevs
3071 alsa_indev_deps="alsa"
3072 alsa_outdev_deps="alsa"
3073 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3074 avfoundation_indev_suggest="coregraphics applicationservices"
3075 avfoundation_indev_extralibs="-framework Foundation"
3076 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3077 caca_outdev_deps="libcaca"
3078 decklink_deps_any="libdl LoadLibrary"
3079 decklink_indev_deps="decklink threads"
3080 decklink_indev_extralibs="-lstdc++"
3081 decklink_outdev_deps="decklink threads"
3082 decklink_outdev_extralibs="-lstdc++"
3083 libndi_newtek_indev_deps="libndi_newtek"
3084 libndi_newtek_indev_extralibs="-lndi"
3085 libndi_newtek_outdev_deps="libndi_newtek"
3086 libndi_newtek_outdev_extralibs="-lndi"
3087 dshow_indev_deps="IBaseFilter"
3088 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3089 fbdev_indev_deps="linux_fb_h"
3090 fbdev_outdev_deps="linux_fb_h"
3091 gdigrab_indev_deps="CreateDIBSection"
3092 gdigrab_indev_extralibs="-lgdi32"
3093 gdigrab_indev_select="bmp_decoder"
3094 iec61883_indev_deps="libiec61883"
3095 jack_indev_deps="libjack"
3096 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3097 kmsgrab_indev_deps="libdrm"
3098 lavfi_indev_deps="avfilter"
3099 libcdio_indev_deps="libcdio"
3100 libdc1394_indev_deps="libdc1394"
3101 openal_indev_deps="openal"
3102 opengl_outdev_deps="opengl"
3103 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3104 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3105 pulse_indev_deps="libpulse"
3106 pulse_outdev_deps="libpulse"
3107 sdl2_outdev_deps="sdl2"
3108 sndio_indev_deps="sndio"
3109 sndio_outdev_deps="sndio"
3110 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3111 v4l2_indev_suggest="libv4l2"
3112 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3113 v4l2_outdev_suggest="libv4l2"
3114 vfwcap_indev_deps="vfw32 vfwcap_defines"
3115 xcbgrab_indev_deps="libxcb"
3116 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3117 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3118 xv_outdev_extralibs="-lXv -lX11 -lXext"
3119
3120 # protocols
3121 async_protocol_deps="threads"
3122 bluray_protocol_deps="libbluray"
3123 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3124 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3125 ffrtmpcrypt_protocol_select="tcp_protocol"
3126 ffrtmphttp_protocol_conflict="librtmp_protocol"
3127 ffrtmphttp_protocol_select="http_protocol"
3128 ftp_protocol_select="tcp_protocol"
3129 gopher_protocol_select="network"
3130 http_protocol_select="tcp_protocol"
3131 http_protocol_suggest="zlib"
3132 httpproxy_protocol_select="tcp_protocol"
3133 httpproxy_protocol_suggest="zlib"
3134 https_protocol_select="tls_protocol"
3135 https_protocol_suggest="zlib"
3136 icecast_protocol_select="http_protocol"
3137 librtmp_protocol_deps="librtmp"
3138 librtmpe_protocol_deps="librtmp"
3139 librtmps_protocol_deps="librtmp"
3140 librtmpt_protocol_deps="librtmp"
3141 librtmpte_protocol_deps="librtmp"
3142 libsmbclient_protocol_deps="libsmbclient gplv3"
3143 libssh_protocol_deps="libssh"
3144 mmsh_protocol_select="http_protocol"
3145 mmst_protocol_select="network"
3146 rtmp_protocol_conflict="librtmp_protocol"
3147 rtmp_protocol_select="tcp_protocol"
3148 rtmp_protocol_suggest="zlib"
3149 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3150 rtmpe_protocol_suggest="zlib"
3151 rtmps_protocol_conflict="librtmp_protocol"
3152 rtmps_protocol_select="tls_protocol"
3153 rtmps_protocol_suggest="zlib"
3154 rtmpt_protocol_select="ffrtmphttp_protocol"
3155 rtmpt_protocol_suggest="zlib"
3156 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3157 rtmpte_protocol_suggest="zlib"
3158 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3159 rtmpts_protocol_suggest="zlib"
3160 rtp_protocol_select="udp_protocol"
3161 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3162 sctp_protocol_select="network"
3163 srtp_protocol_select="rtp_protocol srtp"
3164 tcp_protocol_select="network"
3165 tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"
3166 tls_gnutls_protocol_deps="gnutls"
3167 tls_gnutls_protocol_select="tcp_protocol"
3168 tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"
3169 tls_openssl_protocol_deps="openssl"
3170 tls_openssl_protocol_select="tcp_protocol"
3171 tls_schannel_protocol_deps="schannel"
3172 tls_schannel_protocol_select="tcp_protocol"
3173 tls_securetransport_protocol_deps="securetransport"
3174 tls_securetransport_protocol_select="tcp_protocol"
3175 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3176 udp_protocol_select="network"
3177 udplite_protocol_select="network"
3178 unix_protocol_deps="sys_un_h"
3179 unix_protocol_select="network"
3180
3181 # filters
3182 afftfilt_filter_deps="avcodec"
3183 afftfilt_filter_select="fft"
3184 afir_filter_deps="avcodec"
3185 afir_filter_select="fft"
3186 amovie_filter_deps="avcodec avformat"
3187 aresample_filter_deps="swresample"
3188 ass_filter_deps="libass"
3189 atempo_filter_deps="avcodec"
3190 atempo_filter_select="rdft"
3191 azmq_filter_deps="libzmq"
3192 blackframe_filter_deps="gpl"
3193 boxblur_filter_deps="gpl"
3194 bs2b_filter_deps="libbs2b"
3195 colormatrix_filter_deps="gpl"
3196 coreimage_filter_deps="coreimage appkit"
3197 coreimage_filter_extralibs="-framework OpenGL"
3198 coreimagesrc_filter_deps="coreimage appkit"
3199 coreimagesrc_filter_extralibs="-framework OpenGL"
3200 cover_rect_filter_deps="avcodec avformat gpl"
3201 cropdetect_filter_deps="gpl"
3202 deinterlace_qsv_filter_deps="libmfx"
3203 deinterlace_vaapi_filter_deps="vaapi"
3204 delogo_filter_deps="gpl"
3205 deshake_filter_select="pixelutils"
3206 deshake_filter_suggest="opencl"
3207 drawtext_filter_deps="libfreetype"
3208 drawtext_filter_suggest="libfontconfig libfribidi"
3209 elbg_filter_deps="avcodec"
3210 eq_filter_deps="gpl"
3211 fftfilt_filter_deps="avcodec"
3212 fftfilt_filter_select="rdft"
3213 find_rect_filter_deps="avcodec avformat gpl"
3214 firequalizer_filter_deps="avcodec"
3215 firequalizer_filter_select="rdft"
3216 flite_filter_deps="libflite"
3217 framerate_filter_select="pixelutils"
3218 frei0r_filter_deps="frei0r libdl"
3219 frei0r_src_filter_deps="frei0r libdl"
3220 fspp_filter_deps="gpl"
3221 geq_filter_deps="gpl"
3222 histeq_filter_deps="gpl"
3223 hqdn3d_filter_deps="gpl"
3224 interlace_filter_deps="gpl"
3225 kerndeint_filter_deps="gpl"
3226 ladspa_filter_deps="ladspa libdl"
3227 mcdeint_filter_deps="avcodec gpl"
3228 movie_filter_deps="avcodec avformat"
3229 mpdecimate_filter_deps="gpl"
3230 mpdecimate_filter_select="pixelutils"
3231 mptestsrc_filter_deps="gpl"
3232 negate_filter_deps="lut_filter"
3233 nnedi_filter_deps="gpl"
3234 ocr_filter_deps="libtesseract"
3235 ocv_filter_deps="libopencv"
3236 owdenoise_filter_deps="gpl"
3237 pan_filter_deps="swresample"
3238 perspective_filter_deps="gpl"
3239 phase_filter_deps="gpl"
3240 pp7_filter_deps="gpl"
3241 pp_filter_deps="gpl postproc"
3242 pullup_filter_deps="gpl"
3243 removelogo_filter_deps="avcodec avformat swscale"
3244 repeatfields_filter_deps="gpl"
3245 resample_filter_deps="avresample"
3246 rubberband_filter_deps="librubberband"
3247 sab_filter_deps="gpl swscale"
3248 scale2ref_filter_deps="swscale"
3249 scale_filter_deps="swscale"
3250 scale_qsv_filter_deps="libmfx"
3251 select_filter_select="pixelutils"
3252 showcqt_filter_deps="avcodec avformat swscale"
3253 showcqt_filter_suggest="libfontconfig libfreetype"
3254 showcqt_filter_select="fft"
3255 showfreqs_filter_deps="avcodec"
3256 showfreqs_filter_select="fft"
3257 showspectrum_filter_deps="avcodec"
3258 showspectrum_filter_select="fft"
3259 showspectrumpic_filter_deps="avcodec"
3260 showspectrumpic_filter_select="fft"
3261 signature_filter_deps="gpl avcodec avformat"
3262 smartblur_filter_deps="gpl swscale"
3263 sofalizer_filter_deps="libmysofa avcodec"
3264 sofalizer_filter_select="fft"
3265 spectrumsynth_filter_deps="avcodec"
3266 spectrumsynth_filter_select="fft"
3267 spp_filter_deps="gpl avcodec"
3268 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3269 stereo3d_filter_deps="gpl"
3270 subtitles_filter_deps="avformat avcodec libass"
3271 super2xsai_filter_deps="gpl"
3272 pixfmts_super2xsai_test_deps="super2xsai_filter"
3273 tinterlace_filter_deps="gpl"
3274 tinterlace_merge_test_deps="tinterlace_filter"
3275 tinterlace_pad_test_deps="tinterlace_filter"
3276 tonemap_filter_deps="const_nan"
3277 uspp_filter_deps="gpl avcodec"
3278 unsharp_filter_suggest="opencl"
3279 vaguedenoiser_filter_deps="gpl"
3280 vidstabdetect_filter_deps="libvidstab"
3281 vidstabtransform_filter_deps="libvidstab"
3282 libvmaf_filter_deps="libvmaf"
3283 zmq_filter_deps="libzmq"
3284 zoompan_filter_deps="swscale"
3285 zscale_filter_deps="libzimg const_nan"
3286 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3287
3288 # examples
3289 avio_dir_cmd_deps="avformat avutil"
3290 avio_reading_deps="avformat avcodec avutil"
3291 decode_audio_example_deps="avcodec avutil"
3292 decode_video_example_deps="avcodec avutil"
3293 demuxing_decoding_example_deps="avcodec avformat avutil"
3294 encode_audio_example_deps="avcodec avutil"
3295 encode_video_example_deps="avcodec avutil"
3296 extract_mvs_example_deps="avcodec avformat avutil"
3297 filter_audio_example_deps="avfilter avutil"
3298 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3299 filtering_video_example_deps="avfilter avcodec avformat avutil"
3300 http_multiclient_example_deps="avformat avutil fork"
3301 hw_decode_example_deps="avcodec avformat avutil"
3302 metadata_example_deps="avformat avutil"
3303 muxing_example_deps="avcodec avformat avutil swscale"
3304 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3305 remuxing_example_deps="avcodec avformat avutil"
3306 resampling_audio_example_deps="avutil swresample"
3307 scaling_video_example_deps="avutil swscale"
3308 transcode_aac_example_deps="avcodec avformat swresample"
3309 transcoding_example_deps="avfilter avcodec avformat avutil"
3310
3311 # EXTRALIBS_LIST
3312 cpu_init_extralibs="pthreads_extralibs"
3313 cws2fws_extralibs="zlib_extralibs"
3314
3315 # libraries, in linking order
3316 avcodec_deps="avutil"
3317 avcodec_suggest="libm"
3318 avcodec_select="null_bsf"
3319 avdevice_deps="avformat avcodec avutil"
3320 avdevice_suggest="libm"
3321 avfilter_deps="avutil"
3322 avfilter_suggest="libm"
3323 avformat_deps="avcodec avutil"
3324 avformat_suggest="libm network"
3325 avresample_deps="avutil"
3326 avresample_suggest="libm"
3327 avutil_suggest="clock_gettime libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3328 postproc_deps="avutil gpl"
3329 postproc_suggest="libm"
3330 swresample_deps="avutil"
3331 swresample_suggest="libm libsoxr"
3332 swscale_deps="avutil"
3333 swscale_suggest="libm"
3334
3335 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3336 avfilter_extralibs="pthreads_extralibs"
3337 avutil_extralibs="nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3338
3339 # programs
3340 ffmpeg_deps="avcodec avfilter avformat swresample"
3341 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3342                null_filter
3343                trim_filter"
3344 ffmpeg_suggest="ole32 psapi shell32"
3345 ffplay_deps="avcodec avformat swscale swresample sdl2"
3346 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3347 ffplay_suggest="shell32"
3348 ffprobe_deps="avcodec avformat"
3349 ffprobe_suggest="shell32"
3350 ffserver_deps="avformat fork sarestart"
3351 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3352
3353 # documentation
3354 podpages_deps="perl"
3355 manpages_deps="perl pod2man"
3356 htmlpages_deps="perl"
3357 htmlpages_deps_any="makeinfo_html texi2html"
3358 txtpages_deps="perl makeinfo"
3359 doc_deps_any="manpages htmlpages podpages txtpages"
3360
3361 # default parameters
3362
3363 logfile="ffbuild/config.log"
3364
3365 # installation paths
3366 prefix_default="/usr/local"
3367 bindir_default='${prefix}/bin'
3368 datadir_default='${prefix}/share/ffmpeg'
3369 docdir_default='${prefix}/share/doc/ffmpeg'
3370 incdir_default='${prefix}/include'
3371 libdir_default='${prefix}/lib'
3372 mandir_default='${prefix}/share/man'
3373
3374 # toolchain
3375 ar_default="ar"
3376 cc_default="gcc"
3377 cxx_default="g++"
3378 host_cc_default="gcc"
3379 doxygen_default="doxygen"
3380 install="install"
3381 ln_s_default="ln -s -f"
3382 nm_default="nm -g"
3383 pkg_config_default=pkg-config
3384 ranlib_default="ranlib"
3385 strip_default="strip"
3386 version_script='--version-script'
3387 x86asmexe_default="nasm"
3388 windres_default="windres"
3389 nvcc_default="nvcc"
3390 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3391 striptype="direct"
3392
3393 # OS
3394 target_os_default=$(tolower $(uname -s))
3395 host_os=$target_os_default
3396
3397 # machine
3398 if test "$target_os_default" = aix; then
3399     arch_default=$(uname -p)
3400     strip_default="strip -X32_64"
3401 else
3402     arch_default=$(uname -m)
3403 fi
3404 cpu="generic"
3405 intrinsics="none"
3406
3407 # configurable options
3408 enable $PROGRAM_LIST
3409 enable $DOCUMENT_LIST
3410 enable $EXAMPLE_LIST
3411 enable $(filter_out avresample $LIBRARY_LIST)
3412 enable stripping
3413
3414 enable asm
3415 enable debug
3416 enable doc
3417 enable faan faandct faanidct
3418 enable optimizations
3419 enable runtime_cpudetect
3420 enable safe_bitstream_reader
3421 enable static
3422 enable swscale_alpha
3423 enable valgrind_backtrace
3424
3425 sws_max_filter_size_default=256
3426 set_default sws_max_filter_size
3427
3428 # internal components are enabled by default
3429 enable $EXTRALIBS_LIST
3430
3431 # Avoid external, non-system, libraries getting enabled by dependency resolution
3432 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3433
3434 # build settings
3435 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3436 LIBPREF="lib"
3437 LIBSUF=".a"
3438 FULLNAME='$(NAME)$(BUILDSUF)'
3439 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3440 SLIBPREF="lib"
3441 SLIBSUF=".so"
3442 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3443 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3444 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3445 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3446 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3447 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3448 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3449
3450 asflags_filter=echo
3451 cflags_filter=echo
3452 ldflags_filter=echo
3453
3454 AS_C='-c'
3455 AS_O='-o $@'
3456 CC_C='-c'
3457 CC_E='-E -o $@'
3458 CC_O='-o $@'
3459 CXX_C='-c'
3460 CXX_O='-o $@'
3461 OBJCC_C='-c'
3462 OBJCC_E='-E -o $@'
3463 OBJCC_O='-o $@'
3464 X86ASM_O='-o $@'
3465 LD_O='-o $@'
3466 LD_LIB='-l%'
3467 LD_PATH='-L'
3468 HOSTCC_C='-c'
3469 HOSTCC_E='-E -o $@'
3470 HOSTCC_O='-o $@'
3471 HOSTLD_O='-o $@'
3472 NVCC_C='-c'
3473 NVCC_O='-o $@'
3474
3475 host_extralibs='-lm'
3476 host_cflags_filter=echo
3477 host_ldflags_filter=echo
3478
3479 target_path='$(CURDIR)'
3480
3481 # since the object filename is not given with the -MM flag, the compiler
3482 # is only able to print the basename, and we must add the path ourselves
3483 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3484 DEPFLAGS='-MM'
3485
3486 mkdir -p ffbuild
3487
3488 # find source path
3489 if test -f configure; then
3490     source_path=.
3491 else
3492     source_path=$(cd $(dirname "$0"); pwd)
3493     case "$source_path" in
3494         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3495     esac
3496     test -e "$source_path/config.h" &&
3497         die "Out of tree builds are impossible with config.h in source dir."
3498 fi
3499
3500 for v in "$@"; do
3501     r=${v#*=}
3502     l=${v%"$r"}
3503     r=$(sh_quote "$r")
3504     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3505 done
3506
3507 find_things(){
3508     thing=$1
3509     pattern=$2
3510     file=$source_path/$3
3511     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3512 }
3513
3514 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3515 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3516 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3517 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3518 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3519 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3520 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3521 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3522 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3523
3524 find_things_extern(){
3525     thing=$1
3526     pattern=$2
3527     file=$source_path/$3
3528     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3529 }
3530
3531 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3532 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3533
3534 AVCODEC_COMPONENTS_LIST="
3535     $BSF_LIST
3536     $DECODER_LIST
3537     $ENCODER_LIST
3538     $HWACCEL_LIST
3539     $PARSER_LIST
3540 "
3541
3542 AVDEVICE_COMPONENTS_LIST="
3543     $INDEV_LIST
3544     $OUTDEV_LIST
3545 "
3546
3547 AVFILTER_COMPONENTS_LIST="
3548     $FILTER_LIST
3549 "
3550
3551 AVFORMAT_COMPONENTS_LIST="
3552     $DEMUXER_LIST
3553     $MUXER_LIST
3554     $PROTOCOL_LIST
3555 "
3556
3557 ALL_COMPONENTS="
3558     $AVCODEC_COMPONENTS_LIST
3559     $AVDEVICE_COMPONENTS_LIST
3560     $AVFILTER_COMPONENTS_LIST
3561     $AVFORMAT_COMPONENTS_LIST
3562 "
3563
3564 for n in $COMPONENT_LIST; do
3565     v=$(toupper ${n%s})_LIST
3566     eval enable \$$v
3567     eval ${n}_if_any="\$$v"
3568 done
3569
3570 enable $ARCH_EXT_LIST
3571
3572 die_unknown(){
3573     echo "Unknown option \"$1\"."
3574     echo "See $0 --help for available options."
3575     exit 1
3576 }
3577
3578 print_in_columns() {
3579     cols=$(expr $ncols / 24)
3580     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3581 }
3582
3583 show_list() {
3584     suffix=_$1
3585     shift
3586     echo $* | sed s/$suffix//g | print_in_columns
3587     exit 0
3588 }
3589
3590 rand_list(){
3591     IFS=', '
3592     set -- $*
3593     unset IFS
3594     for thing; do
3595         comp=${thing%:*}
3596         prob=${thing#$comp}
3597         prob=${prob#:}
3598         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3599         echo "prob ${prob:-0.5}"
3600         printf '%s\n' $comp
3601     done
3602 }
3603
3604 do_random(){
3605     action=$1
3606     shift
3607     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3608     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3609 }
3610
3611 for opt do
3612     optval="${opt#*=}"
3613     case "$opt" in
3614         --extra-ldflags=*)
3615             add_ldflags $optval
3616         ;;
3617         --extra-ldexeflags=*)
3618             add_ldexeflags $optval
3619         ;;
3620         --extra-ldlibflags=*)
3621             add_ldlibflags $optval
3622         ;;
3623         --extra-libs=*)
3624             add_extralibs $optval
3625         ;;
3626         --disable-devices)
3627             disable $INDEV_LIST $OUTDEV_LIST
3628         ;;
3629         --enable-debug=*)
3630             debuglevel="$optval"
3631         ;;
3632         --disable-programs)
3633             disable $PROGRAM_LIST
3634         ;;
3635         --disable-everything)
3636             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3637         ;;
3638         --disable-all)
3639             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3640             disable $LIBRARY_LIST $PROGRAM_LIST doc
3641             enable avutil
3642         ;;
3643         --enable-random|--disable-random)
3644             action=${opt%%-random}
3645             do_random ${action#--} $COMPONENT_LIST
3646         ;;
3647         --enable-random=*|--disable-random=*)
3648             action=${opt%%-random=*}
3649             do_random ${action#--} $optval
3650         ;;
3651         --enable-sdl)
3652             enable sdl2
3653         ;;
3654         --enable-*=*|--disable-*=*)
3655             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3656             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3657             eval list=\$$(toupper $thing)_LIST
3658             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3659             list=$(filter "$name" $list)
3660             [ "$list" = "" ] && warn "Option $opt did not match anything"
3661             $action $list
3662         ;;
3663         --enable-yasm|--disable-yasm)
3664             warn "The ${opt} option is only provided for compatibility and will be\n"\
3665                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3666             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3667         ;;
3668         --yasmexe=*)
3669             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3670                  "removed in the future. Use --x86asmexe instead."
3671             x86asmexe="$optval"
3672         ;;
3673         --enable-?*|--disable-?*)
3674             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3675             if is_in $option $COMPONENT_LIST; then
3676                 test $action = disable && action=unset
3677                 eval $action \$$(toupper ${option%s})_LIST
3678             elif is_in $option $CMDLINE_SELECT; then
3679                 $action $option
3680             else
3681                 die_unknown $opt
3682             fi
3683         ;;
3684         --list-*)
3685             NAME="${opt#--list-}"
3686             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3687             NAME=${NAME%s}
3688             eval show_list $NAME \$$(toupper $NAME)_LIST
3689         ;;
3690         --help|-h) show_help
3691         ;;
3692         --quiet|-q) quiet=yes
3693         ;;
3694         --fatal-warnings) enable fatal_warnings
3695         ;;
3696         --libfuzzer=*)
3697             libfuzzer_path="$optval"
3698         ;;
3699         *)
3700             optname="${opt%%=*}"
3701             optname="${optname#--}"
3702             optname=$(echo "$optname" | sed 's/-/_/g')
3703             if is_in $optname $CMDLINE_SET; then
3704                 eval $optname='$optval'
3705             elif is_in $optname $CMDLINE_APPEND; then
3706                 append $optname "$optval"
3707             else
3708                 die_unknown $opt
3709             fi
3710         ;;
3711     esac
3712 done
3713
3714 for e in $env; do
3715     eval "export $e"
3716 done
3717
3718 if disabled autodetect; then
3719
3720     # Unless iconv is explicitely disabled by the user, we still want to probe
3721     # for the iconv from the libc.
3722     disabled iconv || enable libc_iconv
3723
3724     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3725     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3726 fi
3727 # Mark specifically enabled, but normally autodetected libraries as requested.
3728 for lib in $AUTODETECT_LIBS; do
3729     enabled $lib && request $lib
3730 done
3731 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3732 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3733 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3734
3735 disabled logging && logfile=/dev/null
3736
3737 die_license_disabled() {
3738     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3739 }
3740
3741 die_license_disabled_gpl() {
3742     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3743 }
3744
3745 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3746 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3747
3748 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3749 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3750
3751 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3752
3753 # Disable all the library-specific components if the library itself
3754 # is disabled, see AVCODEC_LIST and following _LIST variables.
3755
3756 disable_components(){
3757     disabled ${1} && disable $(
3758         eval components="\$$(toupper ${1})_COMPONENTS"
3759         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3760     )
3761 }
3762
3763 map 'disable_components $v' $LIBRARY_LIST
3764
3765 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3766 set >> $logfile
3767
3768 test -n "$valgrind" && toolchain="valgrind-memcheck"
3769
3770 enabled ossfuzz && {
3771     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3772     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3773 }
3774
3775 case "$toolchain" in
3776     *-asan)
3777         cc_default="${toolchain%-asan}"
3778         add_cflags  -fsanitize=address
3779         add_ldflags -fsanitize=address
3780     ;;
3781     *-msan)
3782         cc_default="${toolchain%-msan}"
3783         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3784         add_ldflags -fsanitize=memory
3785     ;;
3786     *-tsan)
3787         cc_default="${toolchain%-tsan}"
3788         add_cflags  -fsanitize=thread -fPIE
3789         add_ldflags -fsanitize=thread -pie
3790         case "$toolchain" in
3791             gcc-tsan)
3792                 add_cflags  -fPIC
3793                 add_ldflags -fPIC
3794                 ;;
3795         esac
3796     ;;
3797     *-usan)
3798         cc_default="${toolchain%-usan}"
3799         add_cflags  -fsanitize=undefined
3800         add_ldflags -fsanitize=undefined
3801     ;;
3802     valgrind-*)
3803         target_exec_default="valgrind"
3804         case "$toolchain" in
3805             valgrind-massif)
3806                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3807                 ;;
3808             valgrind-memcheck)
3809                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3810                 ;;
3811         esac
3812     ;;
3813     msvc)
3814         # Check whether the current MSVC version needs the C99 converter.
3815         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3816         # support enough of C99 to build ffmpeg. Default to the new
3817         # behaviour if the regexp was unable to match anything, since this
3818         # successfully parses the version number of existing supported
3819         # versions that require the converter (MSVC 2010 and 2012).
3820         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3821         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3822             cc_default="cl"
3823             cxx_default="cl"
3824         else
3825             cc_default="c99wrap cl"
3826             cxx_default="c99wrap cl"
3827         fi
3828         ld_default="$source_path/compat/windows/mslink"
3829         nm_default="dumpbin -symbols"
3830         ar_default="lib"
3831         case "$arch" in
3832         arm*)
3833             as_default="armasm"
3834             ;;
3835         esac
3836         target_os_default="win32"
3837         # Use a relative path for TMPDIR. This makes sure all the
3838         # ffconf temp files are written with a relative path, avoiding
3839         # issues with msys/win32 path conversion for MSVC parameters
3840         # such as -Fo<file> or -out:<file>.
3841         TMPDIR=.
3842     ;;
3843     icl)
3844         cc_default="icl"
3845         ld_default="xilink"
3846         nm_default="dumpbin -symbols"
3847         ar_default="xilib"
3848         target_os_default="win32"
3849         TMPDIR=.
3850     ;;
3851     gcov)
3852         add_cflags  -fprofile-arcs -ftest-coverage
3853         add_ldflags -fprofile-arcs -ftest-coverage
3854     ;;
3855     llvm-cov)
3856         add_cflags -fprofile-arcs -ftest-coverage
3857         add_ldflags --coverage
3858     ;;
3859     hardened)
3860         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3861         add_cflags   -fno-strict-overflow -fstack-protector-all
3862         add_ldflags  -Wl,-z,relro -Wl,-z,now
3863         add_cflags   -fPIE
3864         add_ldexeflags -fPIE -pie
3865     ;;
3866     ?*)
3867         die "Unknown toolchain $toolchain"
3868     ;;
3869 esac
3870
3871 test -n "$cross_prefix" && enable cross_compile
3872
3873 if enabled cross_compile; then
3874     test -n "$arch" && test -n "$target_os" ||
3875         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3876 fi
3877
3878 ar_default="${cross_prefix}${ar_default}"
3879 cc_default="${cross_prefix}${cc_default}"
3880 cxx_default="${cross_prefix}${cxx_default}"
3881 nm_default="${cross_prefix}${nm_default}"
3882 pkg_config_default="${cross_prefix}${pkg_config_default}"
3883 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3884     ranlib_default="${cross_prefix}${ranlib_default} -D"
3885 else
3886     ranlib_default="${cross_prefix}${ranlib_default}"
3887 fi
3888 strip_default="${cross_prefix}${strip_default}"
3889 windres_default="${cross_prefix}${windres_default}"
3890
3891 sysinclude_default="${sysroot}/usr/include"
3892
3893 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3894     target_exec target_os x86asmexe nvcc
3895 enabled cross_compile || host_cc_default=$cc
3896 set_default host_cc
3897
3898 pkg_config_fail_message=""
3899 if ! $pkg_config --version >/dev/null 2>&1; then
3900     warn "$pkg_config not found, library detection may fail."
3901     pkg_config=false
3902 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3903     pkg_config_fail_message="
3904 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3905 fi
3906
3907 if test $doxygen != $doxygen_default && \
3908   ! $doxygen --version >/dev/null 2>&1; then
3909     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3910 fi
3911
3912 exesuf() {
3913     case $1 in
3914         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3915     esac
3916 }
3917
3918 EXESUF=$(exesuf $target_os)
3919 HOSTEXESUF=$(exesuf $host_os)
3920
3921 # set temporary file name
3922 : ${TMPDIR:=$TEMPDIR}
3923 : ${TMPDIR:=$TMP}
3924 : ${TMPDIR:=/tmp}
3925
3926 if [ -n "$tempprefix" ] ; then
3927     mktemp(){
3928         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3929         echo "$tmpname"
3930         mkdir "$tmpname"
3931     }
3932 elif ! check_cmd mktemp -u XXXXXX; then
3933     # simple replacement for missing mktemp
3934     # NOT SAFE FOR GENERAL USE
3935     mktemp(){
3936         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3937         echo "$tmpname"
3938         mkdir "$tmpname"
3939     }
3940 fi
3941
3942 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3943     die "Unable to create temporary directory in $TMPDIR."
3944
3945 tmpfile(){
3946     tmp="${FFTMPDIR}/test"$2
3947     (set -C; exec > $tmp) 2> /dev/null ||
3948         die "Unable to create temporary file in $FFTMPDIR."
3949     eval $1=$tmp
3950 }
3951
3952 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3953 trap 'exit 2' INT
3954
3955 tmpfile TMPASM .asm
3956 tmpfile TMPC   .c
3957 tmpfile TMPCPP .cpp
3958 tmpfile TMPE   $EXESUF
3959 tmpfile TMPH   .h
3960 tmpfile TMPM   .m
3961 tmpfile TMPO   .o
3962 tmpfile TMPS   .S
3963 tmpfile TMPSH  .sh
3964 tmpfile TMPV   .ver
3965
3966 unset -f mktemp
3967
3968 chmod +x $TMPE
3969
3970 # make sure we can execute files in $TMPDIR
3971 cat > $TMPSH 2>> $logfile <<EOF
3972 #! /bin/sh
3973 EOF
3974 chmod +x $TMPSH >> $logfile 2>&1
3975 if ! $TMPSH >> $logfile 2>&1; then
3976     cat <<EOF
3977 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3978 variable to another directory and make sure that it is not mounted noexec.
3979 EOF
3980     die "Sanity test failed."
3981 fi
3982
3983 armasm_flags(){
3984     for flag; do
3985         case $flag in
3986             # Filter out MSVC cl.exe options from cflags that shouldn't
3987             # be passed to gas-preprocessor
3988             -M[TD]*)                                            ;;
3989             *)                  echo $flag                      ;;
3990         esac
3991    done
3992 }
3993
3994 ccc_flags(){
3995     for flag; do
3996         case $flag in
3997             -std=c99)           echo -c99                       ;;
3998             -mcpu=*)            echo -arch ${flag#*=}           ;;
3999             -mieee)             echo -ieee                      ;;
4000             -O*|-fast)          echo $flag                      ;;
4001             -fno-math-errno)    echo -assume nomath_errno       ;;
4002             -g)                 echo -g3                        ;;
4003             -Wall)              echo -msg_enable level2         ;;
4004             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
4005             -Wl,*)              echo $flag                      ;;
4006             -f*|-W*)                                            ;;
4007             *)                  echo $flag                      ;;
4008         esac
4009    done
4010 }
4011
4012 cparser_flags(){
4013     for flag; do
4014         case $flag in
4015             -Wno-switch)             echo -Wno-switch-enum ;;
4016             -Wno-format-zero-length) ;;
4017             -Wdisabled-optimization) ;;
4018             -Wno-pointer-sign)       echo -Wno-other ;;
4019             *)                       echo $flag ;;
4020         esac
4021     done
4022 }
4023
4024 msvc_common_flags(){
4025     for flag; do
4026         case $flag in
4027             # In addition to specifying certain flags under the compiler
4028             # specific filters, they must be specified here as well or else the
4029             # generic catch all at the bottom will print the original flag.
4030             -Wall)                ;;
4031             -Wextra)              ;;
4032             -std=c99)             ;;
4033             # Common flags
4034             -fomit-frame-pointer) ;;
4035             -g)                   echo -Z7 ;;
4036             -fno-math-errno)      ;;
4037             -fno-common)          ;;
4038             -fno-signed-zeros)    ;;
4039             -fPIC)                ;;
4040             -mthumb)              ;;
4041             -march=*)             ;;
4042             -lz)                  echo zlib.lib ;;
4043             -lx264)               echo libx264.lib ;;
4044             -lstdc++)             ;;
4045             -l*)                  echo ${flag#-l}.lib ;;
4046             -LARGEADDRESSAWARE)   echo $flag ;;
4047             -L*)                  echo -libpath:${flag#-L} ;;
4048             *)                    echo $flag ;;
4049         esac
4050     done
4051 }
4052
4053 msvc_flags(){
4054     msvc_common_flags "$@"
4055     for flag; do
4056         case $flag in
4057             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4058                                        -wd4554 ;;
4059             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4060                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4061                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4062                                        -wd4307 \
4063                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4064         esac
4065     done
4066 }
4067
4068 icl_flags(){
4069     msvc_common_flags "$@"
4070     for flag; do
4071         case $flag in
4072             # Despite what Intel's documentation says -Wall, which is supported
4073             # on Windows, does enable remarks so disable them here.
4074             -Wall)                echo $flag -Qdiag-disable:remark ;;
4075             -std=c99)             echo -Qstd=c99 ;;
4076             -flto)                echo -ipo ;;
4077         esac
4078     done
4079 }
4080
4081 icc_flags(){
4082     for flag; do
4083         case $flag in
4084             -flto)                echo -ipo ;;
4085             *)                    echo $flag ;;
4086         esac
4087     done
4088 }
4089
4090 pgi_flags(){
4091     for flag; do
4092         case $flag in
4093             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4094             -fomit-frame-pointer) echo -Mnoframe ;;
4095             -g)                   echo -gopt ;;
4096             *)                    echo $flag ;;
4097         esac
4098     done
4099 }
4100
4101 suncc_flags(){
4102     for flag; do
4103         case $flag in
4104             -march=*|-mcpu=*)
4105                 case "${flag#*=}" in
4106                     native)                   echo -xtarget=native       ;;
4107                     v9|niagara)               echo -xarch=sparc          ;;
4108                     ultrasparc)               echo -xarch=sparcvis       ;;
4109                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4110                     i586|pentium)             echo -xchip=pentium        ;;
4111                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4112                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4113                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4114                     pentium4*)          echo -xtarget=pentium4           ;;
4115                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4116                     *-sse3)             echo -xarch=sse3                 ;;
4117                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4118                     bonnell)                   echo -xarch=ssse3         ;;
4119                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4120                     westmere)                  echo -xtarget=westmere    ;;
4121                     silvermont)                echo -xarch=sse4_2        ;;
4122                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4123                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4124                                                echo -xarch=avx           ;;
4125                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4126                     btver1)                    echo -xarch=amdsse4a      ;;
4127                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4128                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4129                     k8|opteron|athlon64|athlon-fx)
4130                                                echo -xarch=sse2a         ;;
4131                     athlon*)                   echo -xarch=pentium_proa  ;;
4132                 esac
4133                 ;;
4134             -std=c99)             echo -xc99              ;;
4135             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4136             -fPIC)                echo -KPIC -xcode=pic32 ;;
4137             -W*,*)                echo $flag              ;;
4138             -f*-*|-W*|-mimpure-text)                      ;;
4139             -shared)              echo -G                 ;;
4140             *)                    echo $flag              ;;
4141         esac
4142     done
4143 }
4144
4145 tms470_flags(){
4146     for flag; do
4147         case $flag in
4148             -march=*|-mcpu=*)
4149                 case "${flag#*=}" in
4150                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4151                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4152                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4153                     armv6*|arm11*)          echo -mv=6   ;;
4154                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4155                                             echo -mv=5e  ;;
4156                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4157                 esac
4158                 ;;
4159             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4160             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4161             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4162             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4163             -msoft-float)   echo --float_support=vfplib       ;;
4164             -O[0-3]|-mf=*)  echo $flag                        ;;
4165             -g)             echo -g -mn                       ;;
4166             -pds=*)         echo $flag                        ;;
4167             -D*|-I*)        echo $flag                        ;;
4168             --gcc|--abi=*)  echo $flag                        ;;
4169             -me)            echo $flag                        ;;
4170         esac
4171     done
4172 }
4173
4174 probe_cc(){
4175     pfx=$1
4176     _cc=$2
4177     first=$3
4178
4179     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4180     unset _ld_o _ldflags _ld_lib _ld_path
4181     unset _depflags _DEPCMD _DEPFLAGS
4182     _flags_filter=echo
4183
4184     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4185         true # no-op to avoid reading stdin in following checks
4186     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4187         _type=llvm_gcc
4188         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4189         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4190         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4191         _cflags_speed='-O3'
4192         _cflags_size='-Os'
4193     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4194         _type=gcc
4195         gcc_version=$($_cc --version | head -n1)
4196         gcc_basever=$($_cc -dumpversion)
4197         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4198         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4199         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4200         case $gcc_basever in
4201             2) ;;
4202             2.*) ;;
4203             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4204         esac
4205         if [ "$first" = true ]; then
4206             case $gcc_basever in
4207                 4.2*)
4208                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4209             esac
4210         fi
4211         _cflags_speed='-O3'
4212         _cflags_size='-Os'
4213     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4214         _type=icc
4215         _ident=$($_cc --version | head -n1)
4216         _depflags='-MMD'
4217         _cflags_speed='-O3'
4218         _cflags_size='-Os'
4219         _cflags_noopt='-O1'
4220         _flags_filter=icc_flags
4221     elif $_cc -v 2>&1 | grep -q xlc; then
4222         _type=xlc
4223         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4224         _cflags_speed='-O5'
4225         _cflags_size='-O5 -qcompact'
4226     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4227         _type=ccc
4228         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4229         _DEPFLAGS='-M'
4230         _cflags_speed='-fast'
4231         _cflags_size='-O1'
4232         _flags_filter=ccc_flags
4233     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4234         test -d "$sysroot" || die "No valid sysroot specified."
4235         _type=armcc
4236         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4237         armcc_conf="$PWD/armcc.conf"
4238         $_cc --arm_linux_configure                 \
4239              --arm_linux_config_file="$armcc_conf" \
4240              --configure_sysroot="$sysroot"        \
4241              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4242              die "Error creating armcc configuration file."
4243         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4244         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4245         as_default="${cross_prefix}gcc"
4246         _depflags='-MMD'
4247         _cflags_speed='-O3'
4248         _cflags_size='-Os'
4249     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4250         _type=tms470
4251         _ident=$($_cc -version | head -n1 | tr -s ' ')
4252         _flags='--gcc --abi=eabi -me'
4253         _cc_e='-ppl -fe=$@'
4254         _cc_o='-fe=$@'
4255         _depflags='-ppa -ppd=$(@:.o=.d)'
4256         _cflags_speed='-O3 -mf=5'
4257         _cflags_size='-O3 -mf=2'
4258         _flags_filter=tms470_flags
4259     elif $_cc -v 2>&1 | grep -q clang; then
4260         _type=clang
4261         _ident=$($_cc --version 2>/dev/null | head -n1)
4262         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4263         _cflags_speed='-O3'
4264         _cflags_size='-Oz'
4265     elif $_cc -V 2>&1 | grep -q Sun; then
4266         _type=suncc
4267         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4268         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4269         _DEPFLAGS='-xM1 -xc99'
4270         _ldflags='-std=c99'
4271         _cflags_speed='-O5'
4272         _cflags_size='-O5 -xspace'
4273         _flags_filter=suncc_flags
4274     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4275         _type=pathscale
4276         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4277         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4278         _cflags_speed='-O2'
4279         _cflags_size='-Os'
4280         _flags_filter='filter_out -Wdisabled-optimization'
4281     elif $_cc -v 2>&1 | grep -q Open64; then
4282         _type=open64
4283         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4284         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4285         _cflags_speed='-O2'
4286         _cflags_size='-Os'
4287         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4288     elif $_cc -V 2>&1 | grep -q Portland; then
4289         _type=pgi
4290         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4291         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4292         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4293         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4294         _cflags_noopt="-O"
4295         _flags_filter=pgi_flags
4296     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4297         _type=armasm
4298         _ident=$($_cc | head -n1)
4299         # 4509: "This form of conditional instruction is deprecated"
4300         _flags="-nologo -ignore 4509"
4301         _flags_filter=armasm_flags
4302     elif $_cc 2>&1 | grep -q Intel; then
4303         _type=icl
4304         _ident=$($_cc 2>&1 | head -n1)
4305         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4306         # Not only is O3 broken on 13.x+ but it is slower on all previous
4307         # versions (tested) as well.
4308         _cflags_speed="-O2"
4309         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4310         if $_cc 2>&1 | grep -q Linker; then
4311             _ld_o='-out:$@'
4312         else
4313             _ld_o='-Fe$@'
4314         fi
4315         _cc_o='-Fo$@'
4316         _cc_e='-P'
4317         _flags_filter=icl_flags
4318         _ld_lib='lib%.a'
4319         _ld_path='-libpath:'
4320         # -Qdiag-error to make icl error when seeing certain unknown arguments
4321         _flags='-nologo -Qdiag-error:4044,10157'
4322         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4323         # with MSVC which enables it by default.
4324         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4325         disable stripping
4326     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4327         # lld can emulate multiple different linkers; in ms link.exe mode,
4328         # the -? parameter gives the help output which contains an identifyable
4329         # string, while it gives an error in other modes.
4330         _type=lld-link
4331         # The link.exe mode doesn't have a switch for getting the version,
4332         # but we can force it back to gnu mode and get the version from there.
4333         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4334         _ld_o='-out:$@'
4335         _flags_filter=msvc_flags
4336         _ld_lib='lib%.a'
4337         _ld_path='-libpath:'
4338     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4339         _type=msvc
4340         _ident=$($_cc 2>&1 | head -n1)
4341         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4342         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4343         _cflags_speed="-O2"
4344         _cflags_size="-O1"
4345         _cflags_noopt="-O1"
4346         if $_cc -nologo- 2>&1 | grep -q Linker; then
4347             _ld_o='-out:$@'
4348         else
4349             _ld_o='-Fe$@'
4350         fi
4351         _cc_o='-Fo$@'
4352         _cc_e='-P -Fi$@'
4353         _flags_filter=msvc_flags
4354         _ld_lib='lib%.a'
4355         _ld_path='-libpath:'
4356         _flags='-nologo'
4357         disable stripping
4358     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4359         _type=cparser
4360         _ident=$($_cc --version | head -n1)
4361         _depflags='-MMD'
4362         _cflags_speed='-O4'
4363         _cflags_size='-O2'
4364         _flags_filter=cparser_flags
4365     fi
4366
4367     eval ${pfx}_type=\$_type
4368     eval ${pfx}_ident=\$_ident
4369 }
4370
4371 set_ccvars(){
4372     eval ${1}_C=\${_cc_c-\${${1}_C}}
4373     eval ${1}_E=\${_cc_e-\${${1}_E}}
4374     eval ${1}_O=\${_cc_o-\${${1}_O}}
4375
4376     if [ -n "$_depflags" ]; then
4377         eval ${1}_DEPFLAGS=\$_depflags
4378     else
4379         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4380         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4381         eval DEP${1}FLAGS=\$_flags
4382     fi
4383 }
4384
4385 probe_cc cc "$cc" "true"
4386 cflags_filter=$_flags_filter
4387 cflags_speed=$_cflags_speed
4388 cflags_size=$_cflags_size
4389 cflags_noopt=$_cflags_noopt
4390 add_cflags $_flags $_cflags
4391 cc_ldflags=$_ldflags
4392 set_ccvars CC
4393 set_ccvars CXX
4394
4395 probe_cc hostcc "$host_cc"
4396 host_cflags_filter=$_flags_filter
4397 host_cflags_speed=$_cflags_speed
4398 add_host_cflags  $_flags $_cflags
4399 set_ccvars HOSTCC
4400
4401 test -n "$cc_type" && enable $cc_type ||
4402     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4403
4404 : ${as_default:=$cc}
4405 : ${objcc_default:=$cc}
4406 : ${dep_cc_default:=$cc}
4407 : ${ld_default:=$cc}
4408 : ${host_ld_default:=$host_cc}
4409 set_default ar as objcc dep_cc ld ln_s host_ld windres
4410
4411 probe_cc as "$as"
4412 asflags_filter=$_flags_filter
4413 add_asflags $_flags $_cflags
4414 set_ccvars AS
4415
4416 probe_cc objcc "$objcc"
4417 objcflags_filter=$_flags_filter
4418 add_objcflags $_flags $_cflags
4419 set_ccvars OBJC
4420
4421 probe_cc ld "$ld"
4422 ldflags_filter=$_flags_filter
4423 add_ldflags $_flags $_ldflags
4424 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4425 LD_O=${_ld_o-$LD_O}
4426 LD_LIB=${_ld_lib-$LD_LIB}
4427 LD_PATH=${_ld_path-$LD_PATH}
4428
4429 probe_cc hostld "$host_ld"
4430 host_ldflags_filter=$_flags_filter
4431 add_host_ldflags $_flags $_ldflags
4432 HOSTLD_O=${_ld_o-$HOSTLD_O}
4433
4434 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4435     probe_cc depcc "$dep_cc"
4436     CCDEP=${_DEPCMD:-$DEPCMD}
4437     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4438     DEPCCFLAGS=$_flags
4439 fi
4440
4441 if $ar 2>&1 | grep -q Microsoft; then
4442     arflags="-nologo"
4443     ar_o='-out:$@'
4444 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4445     arflags="rq"
4446     ar_o='$@'
4447 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4448     arflags='-Xany -r -c'
4449     ar_o='$@'
4450 elif $ar 2>&1 | grep -q "\[D\] "; then
4451     arflags="rcD"
4452     ar_o='$@'
4453 else
4454     arflags="rc"
4455     ar_o='$@'
4456 fi
4457
4458 add_cflags $extra_cflags
4459 add_cxxflags $extra_cxxflags
4460 add_objcflags $extra_objcflags
4461 add_asflags $extra_cflags
4462
4463 if test -n "$sysroot"; then
4464     case "$cc_type" in
4465         gcc|llvm_gcc|clang)
4466             add_cppflags --sysroot="$sysroot"
4467             add_ldflags --sysroot="$sysroot"
4468 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4469             add_cppflags -isysroot "$sysroot"
4470             add_ldflags -isysroot "$sysroot"
4471         ;;
4472         tms470)
4473             add_cppflags -I"$sysinclude"
4474             add_ldflags  --sysroot="$sysroot"
4475         ;;
4476     esac
4477 fi
4478
4479 if test "$cpu" = host; then
4480     enabled cross_compile &&
4481         die "--cpu=host makes no sense when cross-compiling."
4482
4483     case "$cc_type" in
4484         gcc|llvm_gcc)
4485             check_native(){
4486                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4487                 sed -n "/cc1.*$1=/{
4488                             s/.*$1=\\([^ ]*\\).*/\\1/
4489                             p
4490                             q
4491                         }" $TMPE
4492             }
4493             cpu=$(check_native -march || check_native -mcpu)
4494         ;;
4495         clang)
4496             check_native(){
4497                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4498                 sed -n "/cc1.*-target-cpu /{
4499                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4500                             p
4501                             q
4502                         }" $TMPE
4503             }
4504             cpu=$(check_native -march)
4505         ;;
4506     esac
4507
4508     test "${cpu:-host}" = host &&
4509         die "--cpu=host not supported with compiler $cc"
4510 fi
4511
4512 # Deal with common $arch aliases
4513 case "$arch" in
4514     aarch64|arm64)
4515         arch="aarch64"
4516     ;;
4517     arm*|iPad*|iPhone*)
4518         arch="arm"
4519     ;;
4520     mips*|IP*)
4521         case "$arch" in
4522         *el)
4523             add_cppflags -EL
4524             add_ldflags -EL
4525         ;;
4526         *eb)
4527             add_cppflags -EB
4528             add_ldflags -EB
4529         ;;
4530         esac
4531         arch="mips"
4532     ;;
4533     parisc*|hppa*)
4534         arch="parisc"
4535     ;;
4536     "Power Macintosh"|ppc*|powerpc*)
4537         arch="ppc"
4538     ;;
4539     s390|s390x)
4540         arch="s390"
4541     ;;
4542     sh4|sh)
4543         arch="sh4"
4544     ;;
4545     sun4*|sparc*)
4546         arch="sparc"
4547     ;;
4548     tilegx|tile-gx)
4549         arch="tilegx"
4550     ;;
4551     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4552         arch="x86"
4553     ;;
4554 esac
4555
4556 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4557 enable $arch
4558
4559 # Add processor-specific flags
4560 if enabled aarch64; then
4561
4562     case $cpu in
4563         armv*)
4564             cpuflags="-march=$cpu"
4565         ;;
4566         *)
4567             cpuflags="-mcpu=$cpu"
4568         ;;
4569     esac
4570
4571 elif enabled alpha; then
4572
4573     cpuflags="-mcpu=$cpu"
4574
4575 elif enabled arm; then
4576
4577     check_arm_arch() {
4578         check_cpp_condition stddef.h \
4579             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4580             $cpuflags
4581     }
4582
4583     probe_arm_arch() {
4584         if   check_arm_arch 4;        then echo armv4
4585         elif check_arm_arch 4T;       then echo armv4t
4586         elif check_arm_arch 5;        then echo armv5
4587         elif check_arm_arch 5E;       then echo armv5e
4588         elif check_arm_arch 5T;       then echo armv5t
4589         elif check_arm_arch 5TE;      then echo armv5te
4590         elif check_arm_arch 5TEJ;     then echo armv5te
4591         elif check_arm_arch 6;        then echo armv6
4592         elif check_arm_arch 6J;       then echo armv6j
4593         elif check_arm_arch 6K;       then echo armv6k
4594         elif check_arm_arch 6Z;       then echo armv6z
4595         elif check_arm_arch 6ZK;      then echo armv6zk
4596         elif check_arm_arch 6T2;      then echo armv6t2
4597         elif check_arm_arch 7;        then echo armv7
4598         elif check_arm_arch 7A  7_A;  then echo armv7-a
4599         elif check_arm_arch 7S;       then echo armv7-a
4600         elif check_arm_arch 7R  7_R;  then echo armv7-r
4601         elif check_arm_arch 7M  7_M;  then echo armv7-m
4602         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4603         elif check_arm_arch 8A  8_A;  then echo armv8-a
4604         fi
4605     }
4606
4607     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4608
4609     case $cpu in
4610         armv*)
4611             cpuflags="-march=$cpu"
4612             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4613         ;;
4614         *)
4615             cpuflags="-mcpu=$cpu"
4616             case $cpu in
4617                 cortex-a*)                               subarch=armv7a  ;;
4618                 cortex-r*)                               subarch=armv7r  ;;
4619                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4620                 arm11*)                                  subarch=armv6   ;;
4621                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4622                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4623                 *)                             subarch=$(probe_arm_arch) ;;
4624             esac
4625         ;;
4626     esac
4627
4628     case "$subarch" in
4629         armv5t*)    enable fast_clz                ;;
4630         armv[6-8]*)
4631             enable fast_clz
4632             disabled fast_unaligned || enable fast_unaligned
4633             ;;
4634     esac
4635
4636 elif enabled avr32; then
4637
4638     case $cpu in
4639         ap7[02]0[0-2])
4640             subarch="avr32_ap"
4641             cpuflags="-mpart=$cpu"
4642         ;;
4643         ap)
4644             subarch="avr32_ap"
4645             cpuflags="-march=$cpu"
4646         ;;
4647         uc3[ab]*)
4648             subarch="avr32_uc"
4649             cpuflags="-mcpu=$cpu"
4650         ;;
4651         uc)
4652             subarch="avr32_uc"
4653             cpuflags="-march=$cpu"
4654         ;;
4655     esac
4656
4657 elif enabled bfin; then
4658
4659     cpuflags="-mcpu=$cpu"
4660
4661 elif enabled mips; then
4662
4663     cpuflags="-march=$cpu"
4664
4665     if [ "$cpu" != "generic" ]; then
4666         disable mips32r2
4667         disable mips32r5
4668         disable mips64r2
4669         disable mips32r6
4670         disable mips64r6
4671         disable loongson2
4672         disable loongson3
4673
4674         case $cpu in
4675             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4676                 enable mips32r2
4677                 disable msa
4678             ;;
4679             p5600|i6400|p6600)
4680                 disable mipsdsp
4681                 disable mipsdspr2
4682             ;;
4683             loongson*)
4684                 enable loongson2
4685                 enable loongson3
4686                 enable local_aligned_8 local_aligned_16 local_aligned_32
4687                 enable simd_align_16
4688                 enable fast_64bit
4689                 enable fast_clz
4690                 enable fast_cmov
4691                 enable fast_unaligned
4692                 disable aligned_stack
4693                 disable mipsfpu
4694                 disable mipsdsp
4695                 disable mipsdspr2
4696                 case $cpu in
4697                     loongson3*)
4698                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4699                     ;;
4700                     loongson2e)
4701                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4702                     ;;
4703                     loongson2f)
4704                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4705                     ;;
4706                 esac
4707             ;;
4708             *)
4709                 # Unknown CPU. Disable everything.
4710                 warn "unknown CPU. Disabling all MIPS optimizations."
4711                 disable mipsfpu
4712                 disable mipsdsp
4713                 disable mipsdspr2
4714                 disable msa
4715                 disable mmi
4716             ;;
4717         esac
4718
4719         case $cpu in
4720             24kc)
4721                 disable mipsfpu
4722                 disable mipsdsp
4723                 disable mipsdspr2
4724             ;;
4725             24kf*)
4726                 disable mipsdsp
4727                 disable mipsdspr2
4728             ;;
4729             24kec|34kc|1004kc)
4730                 disable mipsfpu
4731                 disable mipsdspr2
4732             ;;
4733             24kef*|34kf*|1004kf*)
4734                 disable mipsdspr2
4735             ;;
4736             74kc)
4737                 disable mipsfpu
4738             ;;
4739             p5600)
4740                 enable mips32r5
4741                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4742             ;;
4743             i6400)
4744                 enable mips64r6
4745                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4746             ;;
4747             p6600)
4748                 enable mips64r6
4749                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4750             ;;
4751         esac
4752     else
4753         # We do not disable anything. Is up to the user to disable the unwanted features.
4754         warn 'generic cpu selected'
4755     fi
4756
4757 elif enabled ppc; then
4758
4759     disable ldbrx
4760
4761     case $(tolower $cpu) in
4762         601|ppc601|powerpc601)
4763             cpuflags="-mcpu=601"
4764             disable altivec
4765         ;;
4766         603*|ppc603*|powerpc603*)
4767             cpuflags="-mcpu=603"
4768             disable altivec
4769         ;;
4770         604*|ppc604*|powerpc604*)
4771             cpuflags="-mcpu=604"
4772             disable altivec
4773         ;;
4774         g3|75*|ppc75*|powerpc75*)
4775             cpuflags="-mcpu=750"
4776             disable altivec
4777         ;;
4778         g4|745*|ppc745*|powerpc745*)
4779             cpuflags="-mcpu=7450"
4780             disable vsx
4781         ;;
4782         74*|ppc74*|powerpc74*)
4783             cpuflags="-mcpu=7400"
4784             disable vsx
4785         ;;
4786         g5|970|ppc970|powerpc970)
4787             cpuflags="-mcpu=970"
4788             disable vsx
4789         ;;
4790         power[3-6]*)
4791             cpuflags="-mcpu=$cpu"
4792             disable vsx
4793         ;;
4794         power[7-8]*)
4795             cpuflags="-mcpu=$cpu"
4796         ;;
4797         cell)
4798             cpuflags="-mcpu=cell"
4799             enable ldbrx
4800             disable vsx
4801         ;;
4802         e500mc)
4803             cpuflags="-mcpu=e500mc"
4804             disable altivec
4805         ;;
4806         e500v2)
4807             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4808             disable altivec
4809             disable dcbzl
4810         ;;
4811         e500)
4812             cpuflags="-mcpu=8540 -mhard-float"
4813             disable altivec
4814             disable dcbzl
4815         ;;
4816     esac
4817
4818 elif enabled sparc; then
4819
4820     case $cpu in
4821         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4822             cpuflags="-mcpu=$cpu"
4823         ;;
4824         ultrasparc*|niagara[234])
4825             cpuflags="-mcpu=$cpu"
4826         ;;
4827     esac
4828
4829 elif enabled x86; then
4830
4831     case $cpu in
4832         i[345]86|pentium)
4833             cpuflags="-march=$cpu"
4834             disable i686
4835             disable mmx
4836         ;;
4837         # targets that do NOT support nopl and conditional mov (cmov)
4838         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4839             cpuflags="-march=$cpu"
4840             disable i686
4841         ;;
4842         # targets that do support nopl and conditional mov (cmov)
4843         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4844         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4845         |amdfam10|barcelona|b[dt]ver*|znver*)
4846             cpuflags="-march=$cpu"
4847             enable i686
4848             enable fast_cmov
4849         ;;
4850         # targets that do support conditional mov but on which it's slow
4851         pentium4|pentium4m|prescott|nocona)
4852             cpuflags="-march=$cpu"
4853             enable i686
4854             disable fast_cmov
4855         ;;
4856     esac
4857
4858 fi
4859
4860 if [ "$cpu" != generic ]; then
4861     add_cflags  $cpuflags
4862     add_asflags $cpuflags
4863     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4864 fi
4865
4866 # compiler sanity check
4867 check_exec <<EOF
4868 int main(void){ return 0; }
4869 EOF
4870 if test "$?" != 0; then
4871     echo "$cc is unable to create an executable file."
4872     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4873         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."