Merge commit '59cee42d7d22530e66a155305389e29679b11f78'
[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_sanitized(){
588     var=$1
589     shift
590     eval $(sanitize_var_name "$var")='$*'
591 }
592
593 get_sanitized(){
594     eval echo \$$(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_sanitized(){
640     for var; do
641         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
642     done
643 }
644
645 disable_sanitized(){
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_sanitized $header
1112     check_cpp "$@" <<EOF && enable_sanitized $header
1113 #include <$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_sanitized $header
1124     {
1125        echo "#include <$header>"
1126        echo "int main(void) { return 0; }"
1127     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header
1128 }
1129
1130 check_apple_framework(){
1131     log check_apple_framework "$@"
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_sanitized $headers
1200 }
1201
1202 check_class_headers_cpp(){
1203     log check_class_headers_cpp "$@"
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_sanitized $headers
1219 }
1220
1221 check_cpp_condition(){
1222     log check_cpp_condition "$@"
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 $name &&
1285         set_sanitized "${name}_cflags"    $pkg_cflags &&
1286         set_sanitized "${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=$2
1328     shift 2
1329     disable_sanitized "$type"
1330     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1331 }
1332
1333 check_struct(){
1334     log check_struct "$@"
1335     headers=$1
1336     struct=$2
1337     member=$3
1338     shift 3
1339     disable_sanitized "${struct}_${member}"
1340     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1341         enable_sanitized "${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    $(get_sanitized "${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
1885     simd_align_16
1886     simd_align_32
1887 "
1888
1889 BUILTIN_LIST="
1890     atomic_cas_ptr
1891     machine_rw_barrier
1892     MemoryBarrier
1893     mm_empty
1894     rdtsc
1895     sarestart
1896     sem_timedwait
1897     sync_val_compare_and_swap
1898 "
1899 HAVE_LIST_CMDLINE="
1900     inline_asm
1901     symver
1902     x86asm
1903 "
1904
1905 HAVE_LIST_PUB="
1906     bigendian
1907     fast_unaligned
1908 "
1909
1910 HEADERS_LIST="
1911     altivec_h
1912     arpa_inet_h
1913     asm_types_h
1914     cdio_paranoia_h
1915     cdio_paranoia_paranoia_h
1916     cuda_h
1917     d3d11_h
1918     dispatch_dispatch_h
1919     dev_bktr_ioctl_bt848_h
1920     dev_bktr_ioctl_meteor_h
1921     dev_ic_bt8xx_h
1922     dev_video_bktr_ioctl_bt848_h
1923     dev_video_meteor_ioctl_meteor_h
1924     direct_h
1925     dirent_h
1926     dlfcn_h
1927     dxgidebug_h
1928     dxva_h
1929     ES2_gl_h
1930     gsm_h
1931     io_h
1932     mach_mach_time_h
1933     machine_ioctl_bt848_h
1934     machine_ioctl_meteor_h
1935     malloc_h
1936     opencv2_core_core_c_h
1937     OpenGL_gl3_h
1938     poll_h
1939     soundcard_h
1940     stdatomic_h
1941     sys_mman_h
1942     sys_param_h
1943     sys_resource_h
1944     sys_select_h
1945     sys_soundcard_h
1946     sys_time_h
1947     sys_un_h
1948     sys_videoio_h
1949     termios_h
1950     udplite_h
1951     unistd_h
1952     valgrind_valgrind_h
1953     windows_h
1954     winsock2_h
1955 "
1956
1957 INTRINSICS_LIST="
1958     intrinsics_neon
1959 "
1960
1961 COMPLEX_FUNCS="
1962     cabs
1963     cexp
1964 "
1965
1966 MATH_FUNCS="
1967     atanf
1968     atan2f
1969     cbrt
1970     cbrtf
1971     copysign
1972     cosf
1973     erf
1974     exp2
1975     exp2f
1976     expf
1977     hypot
1978     isfinite
1979     isinf
1980     isnan
1981     ldexpf
1982     llrint
1983     llrintf
1984     log2
1985     log2f
1986     log10f
1987     lrint
1988     lrintf
1989     powf
1990     rint
1991     round
1992     roundf
1993     sinf
1994     trunc
1995     truncf
1996 "
1997
1998 SYSTEM_FUNCS="
1999     access
2000     aligned_malloc
2001     arc4random
2002     clock_gettime
2003     closesocket
2004     CommandLineToArgvW
2005     CoTaskMemFree
2006     CryptGenRandom
2007     fcntl
2008     flt_lim
2009     fork
2010     getaddrinfo
2011     gethrtime
2012     getopt
2013     GetProcessAffinityMask
2014     GetProcessMemoryInfo
2015     GetProcessTimes
2016     getrusage
2017     GetSystemTimeAsFileTime
2018     gettimeofday
2019     glob
2020     glXGetProcAddress
2021     gmtime_r
2022     inet_aton
2023     isatty
2024     kbhit
2025     LoadLibrary
2026     localtime_r
2027     lstat
2028     lzo1x_999_compress
2029     mach_absolute_time
2030     MapViewOfFile
2031     memalign
2032     mkstemp
2033     mmap
2034     mprotect
2035     nanosleep
2036     PeekNamedPipe
2037     posix_memalign
2038     pthread_cancel
2039     sched_getaffinity
2040     SetConsoleTextAttribute
2041     SetConsoleCtrlHandler
2042     setmode
2043     setrlimit
2044     Sleep
2045     strerror_r
2046     sysconf
2047     sysctl
2048     usleep
2049     UTGetOSTypeFromString
2050     VirtualAlloc
2051     wglGetProcAddress
2052 "
2053
2054 TOOLCHAIN_FEATURES="
2055     as_arch_directive
2056     as_dn_directive
2057     as_fpu_directive
2058     as_func
2059     as_object_arch
2060     asm_mod_q
2061     attribute_may_alias
2062     attribute_packed
2063     blocks_extension
2064     ebp_available
2065     ebx_available
2066     gnu_as
2067     gnu_windres
2068     ibm_asm
2069     inline_asm_direct_symbol_refs
2070     inline_asm_labels
2071     inline_asm_nonlocal_labels
2072     pragma_deprecated
2073     rsync_contimeout
2074     symver_asm_label
2075     symver_gnu_asm
2076     vfp_args
2077     xform_asm
2078     xmm_clobbers
2079 "
2080
2081 TYPES_LIST="
2082     CONDITION_VARIABLE_Ptr
2083     kCMVideoCodecType_HEVC
2084     socklen_t
2085     struct_addrinfo
2086     struct_group_source_req
2087     struct_ip_mreq_source
2088     struct_ipv6_mreq
2089     struct_msghdr_msg_flags
2090     struct_pollfd
2091     struct_rusage_ru_maxrss
2092     struct_sctp_event_subscribe
2093     struct_sockaddr_in6
2094     struct_sockaddr_sa_len
2095     struct_sockaddr_storage
2096     struct_stat_st_mtim_tv_nsec
2097     struct_v4l2_frmivalenum_discrete
2098 "
2099
2100 HAVE_LIST="
2101     $ARCH_EXT_LIST
2102     $(add_suffix _external $ARCH_EXT_LIST)
2103     $(add_suffix _inline   $ARCH_EXT_LIST)
2104     $ARCH_FEATURES
2105     $ATOMICS_LIST
2106     $BUILTIN_LIST
2107     $COMPLEX_FUNCS
2108     $HAVE_LIST_CMDLINE
2109     $HAVE_LIST_PUB
2110     $HEADERS_LIST
2111     $INTRINSICS_LIST
2112     $MATH_FUNCS
2113     $SYSTEM_FUNCS
2114     $THREADS_LIST
2115     $TOOLCHAIN_FEATURES
2116     $TYPES_LIST
2117     atomics_native
2118     dos_paths
2119     libc_msvcrt
2120     makeinfo
2121     makeinfo_html
2122     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2123     perl
2124     pod2man
2125     section_data_rel_ro
2126     texi2html
2127     threads
2128     uwp
2129     vaapi_drm
2130     vaapi_x11
2131     vdpau_x11
2132     winrt
2133 "
2134
2135 # options emitted with CONFIG_ prefix but not available on the command line
2136 CONFIG_EXTRA="
2137     aandcttables
2138     ac3dsp
2139     adts_header
2140     audio_frame_queue
2141     audiodsp
2142     blockdsp
2143     bswapdsp
2144     cabac
2145     cbs
2146     cbs_h264
2147     cbs_h265
2148     cbs_mpeg2
2149     dirac_parse
2150     dvprofile
2151     exif
2152     faandct
2153     faanidct
2154     fdctdsp
2155     flacdsp
2156     fmtconvert
2157     frame_thread_encoder
2158     g722dsp
2159     golomb
2160     gplv3
2161     h263dsp
2162     h264chroma
2163     h264dsp
2164     h264parse
2165     h264pred
2166     h264qpel
2167     hevcparse
2168     hpeldsp
2169     huffman
2170     huffyuvdsp
2171     huffyuvencdsp
2172     idctdsp
2173     iirfilter
2174     mdct15
2175     intrax8
2176     iso_media
2177     ividsp
2178     jpegtables
2179     lgplv3
2180     libx262
2181     llauddsp
2182     llviddsp
2183     llvidencdsp
2184     lpc
2185     lzf
2186     me_cmp
2187     mpeg_er
2188     mpegaudio
2189     mpegaudiodsp
2190     mpegaudioheader
2191     mpegvideo
2192     mpegvideoenc
2193     mss34dsp
2194     pixblockdsp
2195     qpeldsp
2196     qsv
2197     qsvdec
2198     qsvenc
2199     rangecoder
2200     riffdec
2201     riffenc
2202     rtpdec
2203     rtpenc_chain
2204     rv34dsp
2205     sinewin
2206     snappy
2207     srtp
2208     startcode
2209     texturedsp
2210     texturedspenc
2211     tpeldsp
2212     vaapi_1
2213     vaapi_encode
2214     vc1dsp
2215     videodsp
2216     vp3dsp
2217     vp56dsp
2218     vp8dsp
2219     wma_freqs
2220     wmv2dsp
2221 "
2222
2223 CMDLINE_SELECT="
2224     $ARCH_EXT_LIST
2225     $CONFIG_LIST
2226     $HAVE_LIST_CMDLINE
2227     $THREADS_LIST
2228     asm
2229     cross_compile
2230     debug
2231     extra_warnings
2232     logging
2233     lto
2234     optimizations
2235     rpath
2236     stripping
2237 "
2238
2239 PATHS_LIST="
2240     bindir
2241     datadir
2242     docdir
2243     incdir
2244     libdir
2245     mandir
2246     pkgconfigdir
2247     prefix
2248     shlibdir
2249     install_name_dir
2250 "
2251
2252 CMDLINE_SET="
2253     $PATHS_LIST
2254     ar
2255     arch
2256     as
2257     assert_level
2258     build_suffix
2259     cc
2260     objcc
2261     cpu
2262     cross_prefix
2263     custom_allocator
2264     cxx
2265     dep_cc
2266     doxygen
2267     env
2268     extra_version
2269     gas
2270     host_cc
2271     host_cflags
2272     host_extralibs
2273     host_ld
2274     host_ldflags
2275     host_os
2276     ignore_tests
2277     install
2278     ld
2279     ln_s
2280     logfile
2281     malloc_prefix
2282     nm
2283     optflags
2284     nvccflags
2285     pkg_config
2286     pkg_config_flags
2287     progs_suffix
2288     random_seed
2289     ranlib
2290     samples
2291     strip
2292     sws_max_filter_size
2293     sysinclude
2294     sysroot
2295     target_exec
2296     target_os
2297     target_path
2298     target_samples
2299     tempprefix
2300     toolchain
2301     valgrind
2302     x86asmexe
2303 "
2304
2305 CMDLINE_APPEND="
2306     extra_cflags
2307     extra_cxxflags
2308     extra_objcflags
2309     host_cppflags
2310 "
2311
2312 # code dependency declarations
2313
2314 # architecture extensions
2315
2316 armv5te_deps="arm"
2317 armv6_deps="arm"
2318 armv6t2_deps="arm"
2319 armv8_deps="aarch64"
2320 neon_deps_any="aarch64 arm"
2321 intrinsics_neon_deps="neon"
2322 vfp_deps_any="aarch64 arm"
2323 vfpv3_deps="vfp"
2324 setend_deps="arm"
2325
2326 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2327
2328 loongson2_deps="mips"
2329 loongson3_deps="mips"
2330 mipsfpu_deps="mips"
2331 mipsdsp_deps="mips"
2332 mipsdspr2_deps="mips"
2333 mips32r2_deps="mips"
2334 mips32r5_deps="mips"
2335 mips32r6_deps="mips"
2336 mips64r2_deps="mips"
2337 mips64r6_deps="mips"
2338 msa_deps="mipsfpu"
2339 mmi_deps="mips"
2340
2341 altivec_deps="ppc"
2342 dcbzl_deps="ppc"
2343 ldbrx_deps="ppc"
2344 ppc4xx_deps="ppc"
2345 vsx_deps="altivec"
2346 power8_deps="vsx"
2347
2348 cpunop_deps="i686"
2349 x86_64_select="i686"
2350 x86_64_suggest="fast_cmov"
2351
2352 amd3dnow_deps="mmx"
2353 amd3dnowext_deps="amd3dnow"
2354 i686_deps="x86"
2355 mmx_deps="x86"
2356 mmxext_deps="mmx"
2357 sse_deps="mmxext"
2358 sse2_deps="sse"
2359 sse3_deps="sse2"
2360 ssse3_deps="sse3"
2361 sse4_deps="ssse3"
2362 sse42_deps="sse4"
2363 aesni_deps="sse42"
2364 avx_deps="sse42"
2365 xop_deps="avx"
2366 fma3_deps="avx"
2367 fma4_deps="avx"
2368 avx2_deps="avx"
2369
2370 mmx_external_deps="x86asm"
2371 mmx_inline_deps="inline_asm"
2372 mmx_suggest="mmx_external mmx_inline"
2373
2374 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2375     eval dep=\$${ext}_deps
2376     eval ${ext}_external_deps='"${dep}_external"'
2377     eval ${ext}_inline_deps='"${dep}_inline"'
2378     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2379 done
2380
2381 aligned_stack_if_any="aarch64 ppc x86"
2382 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2383 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2384 fast_unaligned_if_any="aarch64 ppc x86"
2385 simd_align_16_if_any="altivec neon sse"
2386 simd_align_32_if_any="avx"
2387
2388 # system capabilities
2389 symver_if_any="symver_asm_label symver_gnu_asm"
2390 valgrind_backtrace_conflict="optimizations"
2391 valgrind_backtrace_deps="valgrind_valgrind_h"
2392
2393 # threading support
2394 atomics_gcc_if="sync_val_compare_and_swap"
2395 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2396 atomics_win32_if="MemoryBarrier"
2397 atomics_native_if_any="$ATOMICS_LIST"
2398 w32threads_deps="atomics_native"
2399 threads_if_any="$THREADS_LIST"
2400
2401 # subsystems
2402 cbs_h264_select="cbs golomb"
2403 cbs_h265_select="cbs golomb"
2404 cbs_mpeg2_select="cbs"
2405 dct_select="rdft"
2406 dirac_parse_select="golomb"
2407 error_resilience_select="me_cmp"
2408 faandct_deps="faan fdctdsp"
2409 faanidct_deps="faan idctdsp"
2410 h264dsp_select="startcode"
2411 hevcparse_select="golomb"
2412 frame_thread_encoder_deps="encoders threads"
2413 intrax8_select="blockdsp idctdsp"
2414 mdct_select="fft"
2415 mdct15_select="fft"
2416 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2417 mpeg_er_select="error_resilience"
2418 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2419 mpegaudiodsp_select="dct"
2420 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2421 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2422 vc1dsp_select="h264chroma qpeldsp startcode"
2423 rdft_select="fft"
2424
2425 # decoders / encoders
2426 aac_decoder_select="adts_header mdct15 mdct sinewin"
2427 aac_fixed_decoder_select="mdct sinewin"
2428 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2429 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2430 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2431 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2432 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2433 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2434 adpcm_g722_decoder_select="g722dsp"
2435 adpcm_g722_encoder_select="g722dsp"
2436 aic_decoder_select="golomb idctdsp"
2437 alac_encoder_select="lpc"
2438 als_decoder_select="bswapdsp"
2439 amrnb_decoder_select="lsp"
2440 amrwb_decoder_select="lsp"
2441 amv_decoder_select="sp5x_decoder exif"
2442 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2443 ape_decoder_select="bswapdsp llauddsp"
2444 apng_decoder_select="zlib"
2445 apng_encoder_select="llvidencdsp zlib"
2446 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2447 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2448 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2449 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2450 atrac1_decoder_select="mdct sinewin"
2451 atrac3_decoder_select="mdct"
2452 atrac3p_decoder_select="mdct sinewin"
2453 avrn_decoder_select="exif jpegtables"
2454 bink_decoder_select="blockdsp hpeldsp"
2455 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2456 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2457 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2458 clearvideo_decoder_select="idctdsp"
2459 cllc_decoder_select="bswapdsp"
2460 comfortnoise_encoder_select="lpc"
2461 cook_decoder_select="audiodsp mdct sinewin"
2462 cscd_decoder_select="lzo"
2463 cscd_decoder_suggest="zlib"
2464 dca_decoder_select="mdct"
2465 dds_decoder_select="texturedsp"
2466 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2467 dnxhd_decoder_select="blockdsp idctdsp"
2468 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2469 dolby_e_decoder_select="mdct"
2470 dvvideo_decoder_select="dvprofile idctdsp"
2471 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2472 dxa_decoder_select="zlib"
2473 dxv_decoder_select="lzf texturedsp"
2474 eac3_decoder_select="ac3_decoder"
2475 eac3_encoder_select="ac3_encoder"
2476 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2477 eatgq_decoder_select="aandcttables"
2478 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2479 exr_decoder_select="zlib"
2480 ffv1_decoder_select="rangecoder"
2481 ffv1_encoder_select="rangecoder"
2482 ffvhuff_decoder_select="huffyuv_decoder"
2483 ffvhuff_encoder_select="huffyuv_encoder"
2484 fic_decoder_select="golomb"
2485 flac_decoder_select="flacdsp"
2486 flac_encoder_select="bswapdsp flacdsp lpc"
2487 flashsv2_decoder_select="zlib"
2488 flashsv2_encoder_select="zlib"
2489 flashsv_decoder_select="zlib"
2490 flashsv_encoder_select="zlib"
2491 flv_decoder_select="h263_decoder"
2492 flv_encoder_select="h263_encoder"
2493 fourxm_decoder_select="blockdsp bswapdsp"
2494 fraps_decoder_select="bswapdsp huffman"
2495 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2496 g729_decoder_select="audiodsp"
2497 h261_decoder_select="mpegvideo"
2498 h261_encoder_select="aandcttables mpegvideoenc"
2499 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2500 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2501 h263i_decoder_select="h263_decoder"
2502 h263p_decoder_select="h263_decoder"
2503 h263p_encoder_select="h263_encoder"
2504 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2505 h264_decoder_suggest="error_resilience"
2506 hap_decoder_select="snappy texturedsp"
2507 hap_encoder_deps="libsnappy"
2508 hap_encoder_select="texturedspenc"
2509 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2510 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2511 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2512 iac_decoder_select="imc_decoder"
2513 imc_decoder_select="bswapdsp fft mdct sinewin"
2514 indeo3_decoder_select="hpeldsp"
2515 indeo4_decoder_select="ividsp"
2516 indeo5_decoder_select="ividsp"
2517 interplay_video_decoder_select="hpeldsp"
2518 jpegls_decoder_select="mjpeg_decoder"
2519 jv_decoder_select="blockdsp"
2520 lagarith_decoder_select="llviddsp"
2521 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2522 magicyuv_decoder_select="llviddsp"
2523 magicyuv_encoder_select="llvidencdsp"
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 aac_parser_select="adts_header"
2879 h264_parser_select="golomb h264dsp h264parse"
2880 hevc_parser_select="hevcparse"
2881 mpegaudio_parser_select="mpegaudioheader"
2882 mpegvideo_parser_select="mpegvideo"
2883 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2884 vc1_parser_select="vc1dsp"
2885
2886 # bitstream_filters
2887 aac_adtstoasc_bsf_select="adts_header"
2888 h264_metadata_bsf_select="cbs_h264"
2889 h264_redundant_pps_bsf_select="cbs_h264"
2890 hevc_metadata_bsf_select="cbs_h265"
2891 mjpeg2jpeg_bsf_select="jpegtables"
2892 mpeg2_metadata_bsf_select="cbs_mpeg2"
2893 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2894
2895 # external libraries
2896 aac_at_decoder_deps="audiotoolbox"
2897 ac3_at_decoder_deps="audiotoolbox"
2898 ac3_at_decoder_select="ac3_parser"
2899 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2900 alac_at_decoder_deps="audiotoolbox"
2901 amr_nb_at_decoder_deps="audiotoolbox"
2902 avisynth_deps_any="libdl LoadLibrary"
2903 avisynth_demuxer_deps="avisynth"
2904 avisynth_demuxer_select="riffdec"
2905 eac3_at_decoder_deps="audiotoolbox"
2906 eac3_at_decoder_select="ac3_parser"
2907 gsm_ms_at_decoder_deps="audiotoolbox"
2908 ilbc_at_decoder_deps="audiotoolbox"
2909 mp1_at_decoder_deps="audiotoolbox"
2910 mp2_at_decoder_deps="audiotoolbox"
2911 mp3_at_decoder_deps="audiotoolbox"
2912 mp1_at_decoder_select="mpegaudioheader"
2913 mp2_at_decoder_select="mpegaudioheader"
2914 mp3_at_decoder_select="mpegaudioheader"
2915 pcm_alaw_at_decoder_deps="audiotoolbox"
2916 pcm_mulaw_at_decoder_deps="audiotoolbox"
2917 qdmc_at_decoder_deps="audiotoolbox"
2918 qdm2_at_decoder_deps="audiotoolbox"
2919 aac_at_encoder_deps="audiotoolbox"
2920 aac_at_encoder_select="audio_frame_queue"
2921 alac_at_encoder_deps="audiotoolbox"
2922 alac_at_encoder_select="audio_frame_queue"
2923 ilbc_at_encoder_deps="audiotoolbox"
2924 ilbc_at_encoder_select="audio_frame_queue"
2925 pcm_alaw_at_encoder_deps="audiotoolbox"
2926 pcm_alaw_at_encoder_select="audio_frame_queue"
2927 pcm_mulaw_at_encoder_deps="audiotoolbox"
2928 pcm_mulaw_at_encoder_select="audio_frame_queue"
2929 chromaprint_muxer_deps="chromaprint"
2930 h264_videotoolbox_encoder_deps="pthreads"
2931 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2932 libcelt_decoder_deps="libcelt"
2933 libfdk_aac_decoder_deps="libfdk_aac"
2934 libfdk_aac_encoder_deps="libfdk_aac"
2935 libfdk_aac_encoder_select="audio_frame_queue"
2936 libgme_demuxer_deps="libgme"
2937 libgsm_decoder_deps="libgsm"
2938 libgsm_encoder_deps="libgsm"
2939 libgsm_ms_decoder_deps="libgsm"
2940 libgsm_ms_encoder_deps="libgsm"
2941 libilbc_decoder_deps="libilbc"
2942 libilbc_encoder_deps="libilbc"
2943 libkvazaar_encoder_deps="libkvazaar"
2944 libmodplug_demuxer_deps="libmodplug"
2945 libmp3lame_encoder_deps="libmp3lame"
2946 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2947 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2948 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2949 libopencore_amrnb_encoder_select="audio_frame_queue"
2950 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2951 libopenh264_decoder_deps="libopenh264"
2952 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2953 libopenh264_encoder_deps="libopenh264"
2954 libopenjpeg_decoder_deps="libopenjpeg"
2955 libopenjpeg_encoder_deps="libopenjpeg"
2956 libopenmpt_demuxer_deps="libopenmpt"
2957 libopus_decoder_deps="libopus"
2958 libopus_encoder_deps="libopus"
2959 libopus_encoder_select="audio_frame_queue"
2960 librsvg_decoder_deps="librsvg"
2961 libshine_encoder_deps="libshine"
2962 libshine_encoder_select="audio_frame_queue"
2963 libspeex_decoder_deps="libspeex"
2964 libspeex_encoder_deps="libspeex"
2965 libspeex_encoder_select="audio_frame_queue"
2966 libtheora_encoder_deps="libtheora"
2967 libtwolame_encoder_deps="libtwolame"
2968 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2969 libvorbis_decoder_deps="libvorbis"
2970 libvorbis_encoder_deps="libvorbis libvorbisenc"
2971 libvorbis_encoder_select="audio_frame_queue"
2972 libvpx_vp8_decoder_deps="libvpx"
2973 libvpx_vp8_encoder_deps="libvpx"
2974 libvpx_vp9_decoder_deps="libvpx"
2975 libvpx_vp9_encoder_deps="libvpx"
2976 libwavpack_encoder_deps="libwavpack"
2977 libwavpack_encoder_select="audio_frame_queue"
2978 libwebp_encoder_deps="libwebp"
2979 libwebp_anim_encoder_deps="libwebp"
2980 libx262_encoder_deps="libx262"
2981 libx264_encoder_deps="libx264"
2982 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2983 libx264rgb_encoder_select="libx264_encoder"
2984 libx265_encoder_deps="libx265"
2985 libxavs_encoder_deps="libxavs"
2986 libxvid_encoder_deps="libxvid"
2987 libzvbi_teletext_decoder_deps="libzvbi"
2988 videotoolbox_suggest="coreservices"
2989 videotoolbox_deps="corefoundation coremedia corevideo"
2990 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2991
2992 # demuxers / muxers
2993 ac3_demuxer_select="ac3_parser"
2994 aiff_muxer_select="iso_media"
2995 asf_demuxer_select="riffdec"
2996 asf_o_demuxer_select="riffdec"
2997 asf_muxer_select="riffenc"
2998 asf_stream_muxer_select="asf_muxer"
2999 avi_demuxer_select="iso_media riffdec exif"
3000 avi_muxer_select="riffenc"
3001 caf_demuxer_select="iso_media riffdec"
3002 caf_muxer_select="iso_media"
3003 dash_muxer_select="mp4_muxer"
3004 dash_demuxer_deps="libxml2"
3005 dirac_demuxer_select="dirac_parser"
3006 dts_demuxer_select="dca_parser"
3007 dtshd_demuxer_select="dca_parser"
3008 dv_demuxer_select="dvprofile"
3009 dv_muxer_select="dvprofile"
3010 dxa_demuxer_select="riffdec"
3011 eac3_demuxer_select="ac3_parser"
3012 f4v_muxer_select="mov_muxer"
3013 fifo_muxer_deps="threads"
3014 flac_demuxer_select="flac_parser"
3015 hds_muxer_select="flv_muxer"
3016 hls_muxer_select="mpegts_muxer"
3017 hls_muxer_suggest="gcrypt openssl"
3018 image2_alias_pix_demuxer_select="image2_demuxer"
3019 image2_brender_pix_demuxer_select="image2_demuxer"
3020 ipod_muxer_select="mov_muxer"
3021 ismv_muxer_select="mov_muxer"
3022 matroska_audio_muxer_select="matroska_muxer"
3023 matroska_demuxer_select="iso_media riffdec"
3024 matroska_demuxer_suggest="bzlib lzo zlib"
3025 matroska_muxer_select="iso_media riffenc"
3026 mmf_muxer_select="riffenc"
3027 mov_demuxer_select="iso_media riffdec"
3028 mov_demuxer_suggest="zlib"
3029 mov_muxer_select="iso_media riffenc rtpenc_chain"
3030 mp3_demuxer_select="mpegaudio_parser"
3031 mp3_muxer_select="mpegaudioheader"
3032 mp4_muxer_select="mov_muxer"
3033 mpegts_demuxer_select="iso_media"
3034 mpegts_muxer_select="adts_muxer latm_muxer"
3035 mpegtsraw_demuxer_select="mpegts_demuxer"
3036 mxf_d10_muxer_select="mxf_muxer"
3037 mxf_opatom_muxer_select="mxf_muxer"
3038 nut_muxer_select="riffenc"
3039 nuv_demuxer_select="riffdec"
3040 oga_muxer_select="ogg_muxer"
3041 ogg_demuxer_select="dirac_parse"
3042 ogv_muxer_select="ogg_muxer"
3043 opus_muxer_select="ogg_muxer"
3044 psp_muxer_select="mov_muxer"
3045 rtp_demuxer_select="sdp_demuxer"
3046 rtp_muxer_select="golomb"
3047 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3048 rtsp_demuxer_select="http_protocol rtpdec"
3049 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3050 sap_demuxer_select="sdp_demuxer"
3051 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3052 sdp_demuxer_select="rtpdec"
3053 smoothstreaming_muxer_select="ismv_muxer"
3054 spdif_demuxer_select="adts_header"
3055 spdif_muxer_select="adts_header"
3056 spx_muxer_select="ogg_muxer"
3057 swf_demuxer_suggest="zlib"
3058 tak_demuxer_select="tak_parser"
3059 tg2_muxer_select="mov_muxer"
3060 tgp_muxer_select="mov_muxer"
3061 vobsub_demuxer_select="mpegps_demuxer"
3062 w64_demuxer_select="wav_demuxer"
3063 w64_muxer_select="wav_muxer"
3064 wav_demuxer_select="riffdec"
3065 wav_muxer_select="riffenc"
3066 webm_muxer_select="iso_media riffenc"
3067 webm_dash_manifest_demuxer_select="matroska_demuxer"
3068 wtv_demuxer_select="mpegts_demuxer riffdec"
3069 wtv_muxer_select="mpegts_muxer riffenc"
3070 xmv_demuxer_select="riffdec"
3071 xwma_demuxer_select="riffdec"
3072
3073 # indevs / outdevs
3074 alsa_indev_deps="alsa"
3075 alsa_outdev_deps="alsa"
3076 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3077 avfoundation_indev_suggest="coregraphics applicationservices"
3078 avfoundation_indev_extralibs="-framework Foundation"
3079 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3080 caca_outdev_deps="libcaca"
3081 decklink_deps_any="libdl LoadLibrary"
3082 decklink_indev_deps="decklink threads"
3083 decklink_indev_extralibs="-lstdc++"
3084 decklink_outdev_deps="decklink threads"
3085 decklink_outdev_extralibs="-lstdc++"
3086 libndi_newtek_indev_deps="libndi_newtek"
3087 libndi_newtek_indev_extralibs="-lndi"
3088 libndi_newtek_outdev_deps="libndi_newtek"
3089 libndi_newtek_outdev_extralibs="-lndi"
3090 dshow_indev_deps="IBaseFilter"
3091 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3092 fbdev_indev_deps="linux_fb_h"
3093 fbdev_outdev_deps="linux_fb_h"
3094 gdigrab_indev_deps="CreateDIBSection"
3095 gdigrab_indev_extralibs="-lgdi32"
3096 gdigrab_indev_select="bmp_decoder"
3097 iec61883_indev_deps="libiec61883"
3098 jack_indev_deps="libjack"
3099 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3100 kmsgrab_indev_deps="libdrm"
3101 lavfi_indev_deps="avfilter"
3102 libcdio_indev_deps="libcdio"
3103 libdc1394_indev_deps="libdc1394"
3104 openal_indev_deps="openal"
3105 opengl_outdev_deps="opengl"
3106 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3107 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3108 pulse_indev_deps="libpulse"
3109 pulse_outdev_deps="libpulse"
3110 sdl2_outdev_deps="sdl2"
3111 sndio_indev_deps="sndio"
3112 sndio_outdev_deps="sndio"
3113 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3114 v4l2_indev_suggest="libv4l2"
3115 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3116 v4l2_outdev_suggest="libv4l2"
3117 vfwcap_indev_deps="vfw32 vfwcap_defines"
3118 xcbgrab_indev_deps="libxcb"
3119 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3120 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3121 xv_outdev_extralibs="-lXv -lX11 -lXext"
3122
3123 # protocols
3124 async_protocol_deps="threads"
3125 bluray_protocol_deps="libbluray"
3126 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3127 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3128 ffrtmpcrypt_protocol_select="tcp_protocol"
3129 ffrtmphttp_protocol_conflict="librtmp_protocol"
3130 ffrtmphttp_protocol_select="http_protocol"
3131 ftp_protocol_select="tcp_protocol"
3132 gopher_protocol_select="network"
3133 http_protocol_select="tcp_protocol"
3134 http_protocol_suggest="zlib"
3135 httpproxy_protocol_select="tcp_protocol"
3136 httpproxy_protocol_suggest="zlib"
3137 https_protocol_select="tls_protocol"
3138 https_protocol_suggest="zlib"
3139 icecast_protocol_select="http_protocol"
3140 librtmp_protocol_deps="librtmp"
3141 librtmpe_protocol_deps="librtmp"
3142 librtmps_protocol_deps="librtmp"
3143 librtmpt_protocol_deps="librtmp"
3144 librtmpte_protocol_deps="librtmp"
3145 libsmbclient_protocol_deps="libsmbclient gplv3"
3146 libssh_protocol_deps="libssh"
3147 mmsh_protocol_select="http_protocol"
3148 mmst_protocol_select="network"
3149 rtmp_protocol_conflict="librtmp_protocol"
3150 rtmp_protocol_select="tcp_protocol"
3151 rtmp_protocol_suggest="zlib"
3152 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3153 rtmpe_protocol_suggest="zlib"
3154 rtmps_protocol_conflict="librtmp_protocol"
3155 rtmps_protocol_select="tls_protocol"
3156 rtmps_protocol_suggest="zlib"
3157 rtmpt_protocol_select="ffrtmphttp_protocol"
3158 rtmpt_protocol_suggest="zlib"
3159 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3160 rtmpte_protocol_suggest="zlib"
3161 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3162 rtmpts_protocol_suggest="zlib"
3163 rtp_protocol_select="udp_protocol"
3164 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3165 sctp_protocol_select="network"
3166 srtp_protocol_select="rtp_protocol srtp"
3167 tcp_protocol_select="network"
3168 tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"
3169 tls_gnutls_protocol_deps="gnutls"
3170 tls_gnutls_protocol_select="tcp_protocol"
3171 tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"
3172 tls_openssl_protocol_deps="openssl"
3173 tls_openssl_protocol_select="tcp_protocol"
3174 tls_schannel_protocol_deps="schannel"
3175 tls_schannel_protocol_select="tcp_protocol"
3176 tls_securetransport_protocol_deps="securetransport"
3177 tls_securetransport_protocol_select="tcp_protocol"
3178 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3179 udp_protocol_select="network"
3180 udplite_protocol_select="network"
3181 unix_protocol_deps="sys_un_h"
3182 unix_protocol_select="network"
3183
3184 # filters
3185 afftfilt_filter_deps="avcodec"
3186 afftfilt_filter_select="fft"
3187 afir_filter_deps="avcodec"
3188 afir_filter_select="fft"
3189 amovie_filter_deps="avcodec avformat"
3190 aresample_filter_deps="swresample"
3191 ass_filter_deps="libass"
3192 atempo_filter_deps="avcodec"
3193 atempo_filter_select="rdft"
3194 azmq_filter_deps="libzmq"
3195 blackframe_filter_deps="gpl"
3196 boxblur_filter_deps="gpl"
3197 bs2b_filter_deps="libbs2b"
3198 colormatrix_filter_deps="gpl"
3199 coreimage_filter_deps="coreimage appkit"
3200 coreimage_filter_extralibs="-framework OpenGL"
3201 coreimagesrc_filter_deps="coreimage appkit"
3202 coreimagesrc_filter_extralibs="-framework OpenGL"
3203 cover_rect_filter_deps="avcodec avformat gpl"
3204 cropdetect_filter_deps="gpl"
3205 deinterlace_qsv_filter_deps="libmfx"
3206 deinterlace_vaapi_filter_deps="vaapi"
3207 delogo_filter_deps="gpl"
3208 deshake_filter_select="pixelutils"
3209 deshake_filter_suggest="opencl"
3210 drawtext_filter_deps="libfreetype"
3211 drawtext_filter_suggest="libfontconfig libfribidi"
3212 elbg_filter_deps="avcodec"
3213 eq_filter_deps="gpl"
3214 fftfilt_filter_deps="avcodec"
3215 fftfilt_filter_select="rdft"
3216 find_rect_filter_deps="avcodec avformat gpl"
3217 firequalizer_filter_deps="avcodec"
3218 firequalizer_filter_select="rdft"
3219 flite_filter_deps="libflite"
3220 framerate_filter_select="pixelutils"
3221 frei0r_filter_deps="frei0r libdl"
3222 frei0r_src_filter_deps="frei0r libdl"
3223 fspp_filter_deps="gpl"
3224 geq_filter_deps="gpl"
3225 histeq_filter_deps="gpl"
3226 hqdn3d_filter_deps="gpl"
3227 interlace_filter_deps="gpl"
3228 kerndeint_filter_deps="gpl"
3229 ladspa_filter_deps="ladspa libdl"
3230 mcdeint_filter_deps="avcodec gpl"
3231 movie_filter_deps="avcodec avformat"
3232 mpdecimate_filter_deps="gpl"
3233 mpdecimate_filter_select="pixelutils"
3234 mptestsrc_filter_deps="gpl"
3235 negate_filter_deps="lut_filter"
3236 nnedi_filter_deps="gpl"
3237 ocr_filter_deps="libtesseract"
3238 ocv_filter_deps="libopencv"
3239 owdenoise_filter_deps="gpl"
3240 pan_filter_deps="swresample"
3241 perspective_filter_deps="gpl"
3242 phase_filter_deps="gpl"
3243 pp7_filter_deps="gpl"
3244 pp_filter_deps="gpl postproc"
3245 pullup_filter_deps="gpl"
3246 removelogo_filter_deps="avcodec avformat swscale"
3247 repeatfields_filter_deps="gpl"
3248 resample_filter_deps="avresample"
3249 rubberband_filter_deps="librubberband"
3250 sab_filter_deps="gpl swscale"
3251 scale2ref_filter_deps="swscale"
3252 scale_filter_deps="swscale"
3253 scale_qsv_filter_deps="libmfx"
3254 select_filter_select="pixelutils"
3255 showcqt_filter_deps="avcodec avformat swscale"
3256 showcqt_filter_suggest="libfontconfig libfreetype"
3257 showcqt_filter_select="fft"
3258 showfreqs_filter_deps="avcodec"
3259 showfreqs_filter_select="fft"
3260 showspectrum_filter_deps="avcodec"
3261 showspectrum_filter_select="fft"
3262 showspectrumpic_filter_deps="avcodec"
3263 showspectrumpic_filter_select="fft"
3264 signature_filter_deps="gpl avcodec avformat"
3265 smartblur_filter_deps="gpl swscale"
3266 sofalizer_filter_deps="libmysofa avcodec"
3267 sofalizer_filter_select="fft"
3268 spectrumsynth_filter_deps="avcodec"
3269 spectrumsynth_filter_select="fft"
3270 spp_filter_deps="gpl avcodec"
3271 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3272 stereo3d_filter_deps="gpl"
3273 subtitles_filter_deps="avformat avcodec libass"
3274 super2xsai_filter_deps="gpl"
3275 pixfmts_super2xsai_test_deps="super2xsai_filter"
3276 tinterlace_filter_deps="gpl"
3277 tinterlace_merge_test_deps="tinterlace_filter"
3278 tinterlace_pad_test_deps="tinterlace_filter"
3279 tonemap_filter_deps="const_nan"
3280 uspp_filter_deps="gpl avcodec"
3281 unsharp_filter_suggest="opencl"
3282 vaguedenoiser_filter_deps="gpl"
3283 vidstabdetect_filter_deps="libvidstab"
3284 vidstabtransform_filter_deps="libvidstab"
3285 libvmaf_filter_deps="libvmaf"
3286 zmq_filter_deps="libzmq"
3287 zoompan_filter_deps="swscale"
3288 zscale_filter_deps="libzimg const_nan"
3289 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3290
3291 # examples
3292 avio_dir_cmd_deps="avformat avutil"
3293 avio_reading_deps="avformat avcodec avutil"
3294 decode_audio_example_deps="avcodec avutil"
3295 decode_video_example_deps="avcodec avutil"
3296 demuxing_decoding_example_deps="avcodec avformat avutil"
3297 encode_audio_example_deps="avcodec avutil"
3298 encode_video_example_deps="avcodec avutil"
3299 extract_mvs_example_deps="avcodec avformat avutil"
3300 filter_audio_example_deps="avfilter avutil"
3301 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3302 filtering_video_example_deps="avfilter avcodec avformat avutil"
3303 http_multiclient_example_deps="avformat avutil fork"
3304 hw_decode_example_deps="avcodec avformat avutil"
3305 metadata_example_deps="avformat avutil"
3306 muxing_example_deps="avcodec avformat avutil swscale"
3307 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3308 remuxing_example_deps="avcodec avformat avutil"
3309 resampling_audio_example_deps="avutil swresample"
3310 scaling_video_example_deps="avutil swscale"
3311 transcode_aac_example_deps="avcodec avformat swresample"
3312 transcoding_example_deps="avfilter avcodec avformat avutil"
3313
3314 # EXTRALIBS_LIST
3315 cpu_init_extralibs="pthreads_extralibs"
3316 cws2fws_extralibs="zlib_extralibs"
3317
3318 # libraries, in linking order
3319 avcodec_deps="avutil"
3320 avcodec_suggest="libm"
3321 avcodec_select="null_bsf"
3322 avdevice_deps="avformat avcodec avutil"
3323 avdevice_suggest="libm"
3324 avfilter_deps="avutil"
3325 avfilter_suggest="libm"
3326 avformat_deps="avcodec avutil"
3327 avformat_suggest="libm network zlib"
3328 avresample_deps="avutil"
3329 avresample_suggest="libm"
3330 avutil_suggest="clock_gettime libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3331 postproc_deps="avutil gpl"
3332 postproc_suggest="libm"
3333 swresample_deps="avutil"
3334 swresample_suggest="libm libsoxr"
3335 swscale_deps="avutil"
3336 swscale_suggest="libm"
3337
3338 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3339 avfilter_extralibs="pthreads_extralibs"
3340 avutil_extralibs="nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3341
3342 # programs
3343 ffmpeg_deps="avcodec avfilter avformat swresample"
3344 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3345                null_filter
3346                trim_filter"
3347 ffmpeg_suggest="ole32 psapi shell32"
3348 ffplay_deps="avcodec avformat swscale swresample sdl2"
3349 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3350 ffplay_suggest="shell32"
3351 ffprobe_deps="avcodec avformat"
3352 ffprobe_suggest="shell32"
3353 ffserver_deps="avformat fork sarestart"
3354 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3355
3356 # documentation
3357 podpages_deps="perl"
3358 manpages_deps="perl pod2man"
3359 htmlpages_deps="perl"
3360 htmlpages_deps_any="makeinfo_html texi2html"
3361 txtpages_deps="perl makeinfo"
3362 doc_deps_any="manpages htmlpages podpages txtpages"
3363
3364 # default parameters
3365
3366 logfile="ffbuild/config.log"
3367
3368 # installation paths
3369 prefix_default="/usr/local"
3370 bindir_default='${prefix}/bin'
3371 datadir_default='${prefix}/share/ffmpeg'
3372 docdir_default='${prefix}/share/doc/ffmpeg'
3373 incdir_default='${prefix}/include'
3374 libdir_default='${prefix}/lib'
3375 mandir_default='${prefix}/share/man'
3376
3377 # toolchain
3378 ar_default="ar"
3379 cc_default="gcc"
3380 cxx_default="g++"
3381 host_cc_default="gcc"
3382 doxygen_default="doxygen"
3383 install="install"
3384 ln_s_default="ln -s -f"
3385 nm_default="nm -g"
3386 pkg_config_default=pkg-config
3387 ranlib_default="ranlib"
3388 strip_default="strip"
3389 version_script='--version-script'
3390 x86asmexe_default="nasm"
3391 windres_default="windres"
3392 nvcc_default="nvcc"
3393 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3394 striptype="direct"
3395
3396 # OS
3397 target_os_default=$(tolower $(uname -s))
3398 host_os=$target_os_default
3399
3400 # machine
3401 if test "$target_os_default" = aix; then
3402     arch_default=$(uname -p)
3403     strip_default="strip -X32_64"
3404 else
3405     arch_default=$(uname -m)
3406 fi
3407 cpu="generic"
3408 intrinsics="none"
3409
3410 # configurable options
3411 enable $PROGRAM_LIST
3412 enable $DOCUMENT_LIST
3413 enable $EXAMPLE_LIST
3414 enable $(filter_out avresample $LIBRARY_LIST)
3415 enable stripping
3416
3417 enable asm
3418 enable debug
3419 enable doc
3420 enable faan faandct faanidct
3421 enable optimizations
3422 enable runtime_cpudetect
3423 enable safe_bitstream_reader
3424 enable static
3425 enable swscale_alpha
3426 enable valgrind_backtrace
3427
3428 sws_max_filter_size_default=256
3429 set_default sws_max_filter_size
3430
3431 # internal components are enabled by default
3432 enable $EXTRALIBS_LIST
3433
3434 # Avoid external, non-system, libraries getting enabled by dependency resolution
3435 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3436
3437 # build settings
3438 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3439 LIBPREF="lib"
3440 LIBSUF=".a"
3441 FULLNAME='$(NAME)$(BUILDSUF)'
3442 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3443 SLIBPREF="lib"
3444 SLIBSUF=".so"
3445 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3446 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3447 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3448 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3449 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3450 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3451 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3452
3453 asflags_filter=echo
3454 cflags_filter=echo
3455 ldflags_filter=echo
3456
3457 AS_C='-c'
3458 AS_O='-o $@'
3459 CC_C='-c'
3460 CC_E='-E -o $@'
3461 CC_O='-o $@'
3462 CXX_C='-c'
3463 CXX_O='-o $@'
3464 OBJCC_C='-c'
3465 OBJCC_E='-E -o $@'
3466 OBJCC_O='-o $@'
3467 X86ASM_O='-o $@'
3468 LD_O='-o $@'
3469 LD_LIB='-l%'
3470 LD_PATH='-L'
3471 HOSTCC_C='-c'
3472 HOSTCC_E='-E -o $@'
3473 HOSTCC_O='-o $@'
3474 HOSTLD_O='-o $@'
3475 NVCC_C='-c'
3476 NVCC_O='-o $@'
3477
3478 host_extralibs='-lm'
3479 host_cflags_filter=echo
3480 host_ldflags_filter=echo
3481
3482 target_path='$(CURDIR)'
3483
3484 # since the object filename is not given with the -MM flag, the compiler
3485 # is only able to print the basename, and we must add the path ourselves
3486 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3487 DEPFLAGS='-MM'
3488
3489 mkdir -p ffbuild
3490
3491 # find source path
3492 if test -f configure; then
3493     source_path=.
3494 else
3495     source_path=$(cd $(dirname "$0"); pwd)
3496     case "$source_path" in
3497         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3498     esac
3499     test -e "$source_path/config.h" &&
3500         die "Out of tree builds are impossible with config.h in source dir."
3501 fi
3502
3503 for v in "$@"; do
3504     r=${v#*=}
3505     l=${v%"$r"}
3506     r=$(sh_quote "$r")
3507     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3508 done
3509
3510 find_things(){
3511     thing=$1
3512     pattern=$2
3513     file=$source_path/$3
3514     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3515 }
3516
3517 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3518 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3519 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3520 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3521 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3522 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3523 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3524 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3525 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3526
3527 find_things_extern(){
3528     thing=$1
3529     pattern=$2
3530     file=$source_path/$3
3531     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3532 }
3533
3534 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3535 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3536
3537 AVCODEC_COMPONENTS_LIST="
3538     $BSF_LIST
3539     $DECODER_LIST
3540     $ENCODER_LIST
3541     $HWACCEL_LIST
3542     $PARSER_LIST
3543 "
3544
3545 AVDEVICE_COMPONENTS_LIST="
3546     $INDEV_LIST
3547     $OUTDEV_LIST
3548 "
3549
3550 AVFILTER_COMPONENTS_LIST="
3551     $FILTER_LIST
3552 "
3553
3554 AVFORMAT_COMPONENTS_LIST="
3555     $DEMUXER_LIST
3556     $MUXER_LIST
3557     $PROTOCOL_LIST
3558 "
3559
3560 ALL_COMPONENTS="
3561     $AVCODEC_COMPONENTS_LIST
3562     $AVDEVICE_COMPONENTS_LIST
3563     $AVFILTER_COMPONENTS_LIST
3564     $AVFORMAT_COMPONENTS_LIST
3565 "
3566
3567 for n in $COMPONENT_LIST; do
3568     v=$(toupper ${n%s})_LIST
3569     eval enable \$$v
3570     eval ${n}_if_any="\$$v"
3571 done
3572
3573 enable $ARCH_EXT_LIST
3574
3575 die_unknown(){
3576     echo "Unknown option \"$1\"."
3577     echo "See $0 --help for available options."
3578     exit 1
3579 }
3580
3581 print_in_columns() {
3582     cols=$(expr $ncols / 24)
3583     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3584 }
3585
3586 show_list() {
3587     suffix=_$1
3588     shift
3589     echo $* | sed s/$suffix//g | print_in_columns
3590     exit 0
3591 }
3592
3593 rand_list(){
3594     IFS=', '
3595     set -- $*
3596     unset IFS
3597     for thing; do
3598         comp=${thing%:*}
3599         prob=${thing#$comp}
3600         prob=${prob#:}
3601         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3602         echo "prob ${prob:-0.5}"
3603         printf '%s\n' $comp
3604     done
3605 }
3606
3607 do_random(){
3608     action=$1
3609     shift
3610     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3611     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3612 }
3613
3614 for opt do
3615     optval="${opt#*=}"
3616     case "$opt" in
3617         --extra-ldflags=*)
3618             add_ldflags $optval
3619         ;;
3620         --extra-ldexeflags=*)
3621             add_ldexeflags $optval
3622         ;;
3623         --extra-ldlibflags=*)
3624             add_ldlibflags $optval
3625         ;;
3626         --extra-libs=*)
3627             add_extralibs $optval
3628         ;;
3629         --disable-devices)
3630             disable $INDEV_LIST $OUTDEV_LIST
3631         ;;
3632         --enable-debug=*)
3633             debuglevel="$optval"
3634         ;;
3635         --disable-programs)
3636             disable $PROGRAM_LIST
3637         ;;
3638         --disable-everything)
3639             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3640         ;;
3641         --disable-all)
3642             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3643             disable $LIBRARY_LIST $PROGRAM_LIST doc
3644             enable avutil
3645         ;;
3646         --enable-random|--disable-random)
3647             action=${opt%%-random}
3648             do_random ${action#--} $COMPONENT_LIST
3649         ;;
3650         --enable-random=*|--disable-random=*)
3651             action=${opt%%-random=*}
3652             do_random ${action#--} $optval
3653         ;;
3654         --enable-sdl)
3655             enable sdl2
3656         ;;
3657         --enable-*=*|--disable-*=*)
3658             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3659             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3660             eval list=\$$(toupper $thing)_LIST
3661             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3662             list=$(filter "$name" $list)
3663             [ "$list" = "" ] && warn "Option $opt did not match anything"
3664             $action $list
3665         ;;
3666         --enable-yasm|--disable-yasm)
3667             warn "The ${opt} option is only provided for compatibility and will be\n"\
3668                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3669             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3670         ;;
3671         --yasmexe=*)
3672             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3673                  "removed in the future. Use --x86asmexe instead."
3674             x86asmexe="$optval"
3675         ;;
3676         --enable-?*|--disable-?*)
3677             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3678             if is_in $option $COMPONENT_LIST; then
3679                 test $action = disable && action=unset
3680                 eval $action \$$(toupper ${option%s})_LIST
3681             elif is_in $option $CMDLINE_SELECT; then
3682                 $action $option
3683             else
3684                 die_unknown $opt
3685             fi
3686         ;;
3687         --list-*)
3688             NAME="${opt#--list-}"
3689             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3690             NAME=${NAME%s}
3691             eval show_list $NAME \$$(toupper $NAME)_LIST
3692         ;;
3693         --help|-h) show_help
3694         ;;
3695         --quiet|-q) quiet=yes
3696         ;;
3697         --fatal-warnings) enable fatal_warnings
3698         ;;
3699         --libfuzzer=*)
3700             libfuzzer_path="$optval"
3701         ;;
3702         *)
3703             optname="${opt%%=*}"
3704             optname="${optname#--}"
3705             optname=$(echo "$optname" | sed 's/-/_/g')
3706             if is_in $optname $CMDLINE_SET; then
3707                 eval $optname='$optval'
3708             elif is_in $optname $CMDLINE_APPEND; then
3709                 append $optname "$optval"
3710             else
3711                 die_unknown $opt
3712             fi
3713         ;;
3714     esac
3715 done
3716
3717 for e in $env; do
3718     eval "export $e"
3719 done
3720
3721 if disabled autodetect; then
3722
3723     # Unless iconv is explicitely disabled by the user, we still want to probe
3724     # for the iconv from the libc.
3725     disabled iconv || enable libc_iconv
3726
3727     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3728     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3729 fi
3730 # Mark specifically enabled, but normally autodetected libraries as requested.
3731 for lib in $AUTODETECT_LIBS; do
3732     enabled $lib && request $lib
3733 done
3734 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3735 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3736 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3737
3738 disabled logging && logfile=/dev/null
3739
3740 die_license_disabled() {
3741     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3742 }
3743
3744 die_license_disabled_gpl() {
3745     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3746 }
3747
3748 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3749 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3750
3751 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3752 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3753
3754 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3755
3756 # Disable all the library-specific components if the library itself
3757 # is disabled, see AVCODEC_LIST and following _LIST variables.
3758
3759 disable_components(){
3760     disabled ${1} && disable $(
3761         eval components="\$$(toupper ${1})_COMPONENTS"
3762         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3763     )
3764 }
3765
3766 map 'disable_components $v' $LIBRARY_LIST
3767
3768 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3769 set >> $logfile
3770
3771 test -n "$valgrind" && toolchain="valgrind-memcheck"
3772
3773 enabled ossfuzz && {
3774     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3775     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3776 }
3777
3778 case "$toolchain" in
3779     *-asan)
3780         cc_default="${toolchain%-asan}"
3781         add_cflags  -fsanitize=address
3782         add_ldflags -fsanitize=address
3783     ;;
3784     *-msan)
3785         cc_default="${toolchain%-msan}"
3786         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3787         add_ldflags -fsanitize=memory
3788     ;;
3789     *-tsan)
3790         cc_default="${toolchain%-tsan}"
3791         add_cflags  -fsanitize=thread -fPIE
3792         add_ldflags -fsanitize=thread -pie
3793         case "$toolchain" in
3794             gcc-tsan)
3795                 add_cflags  -fPIC
3796                 add_ldflags -fPIC
3797                 ;;
3798         esac
3799     ;;
3800     *-usan)
3801         cc_default="${toolchain%-usan}"
3802         add_cflags  -fsanitize=undefined
3803         add_ldflags -fsanitize=undefined
3804     ;;
3805     valgrind-*)
3806         target_exec_default="valgrind"
3807         case "$toolchain" in
3808             valgrind-massif)
3809                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3810                 ;;
3811             valgrind-memcheck)
3812                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3813                 ;;
3814         esac
3815     ;;
3816     msvc)
3817         # Check whether the current MSVC version needs the C99 converter.
3818         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3819         # support enough of C99 to build ffmpeg. Default to the new
3820         # behaviour if the regexp was unable to match anything, since this
3821         # successfully parses the version number of existing supported
3822         # versions that require the converter (MSVC 2010 and 2012).
3823         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3824         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3825             cc_default="cl"
3826             cxx_default="cl"
3827         else
3828             cc_default="c99wrap cl"
3829             cxx_default="c99wrap cl"
3830         fi
3831         ld_default="$source_path/compat/windows/mslink"
3832         nm_default="dumpbin -symbols"
3833         ar_default="lib"
3834         case "$arch" in
3835         arm*)
3836             as_default="armasm"
3837             ;;
3838         esac
3839         target_os_default="win32"
3840         # Use a relative path for TMPDIR. This makes sure all the
3841         # ffconf temp files are written with a relative path, avoiding
3842         # issues with msys/win32 path conversion for MSVC parameters
3843         # such as -Fo<file> or -out:<file>.
3844         TMPDIR=.
3845     ;;
3846     icl)
3847         cc_default="icl"
3848         ld_default="xilink"
3849         nm_default="dumpbin -symbols"
3850         ar_default="xilib"
3851         target_os_default="win32"
3852         TMPDIR=.
3853     ;;
3854     gcov)
3855         add_cflags  -fprofile-arcs -ftest-coverage
3856         add_ldflags -fprofile-arcs -ftest-coverage
3857     ;;
3858     llvm-cov)
3859         add_cflags -fprofile-arcs -ftest-coverage
3860         add_ldflags --coverage
3861     ;;
3862     hardened)
3863         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3864         add_cflags   -fno-strict-overflow -fstack-protector-all
3865         add_ldflags  -Wl,-z,relro -Wl,-z,now
3866         add_cflags   -fPIE
3867         add_ldexeflags -fPIE -pie
3868     ;;
3869     ?*)
3870         die "Unknown toolchain $toolchain"
3871     ;;
3872 esac
3873
3874 test -n "$cross_prefix" && enable cross_compile
3875
3876 if enabled cross_compile; then
3877     test -n "$arch" && test -n "$target_os" ||
3878         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3879 fi
3880
3881 ar_default="${cross_prefix}${ar_default}"
3882 cc_default="${cross_prefix}${cc_default}"
3883 cxx_default="${cross_prefix}${cxx_default}"
3884 nm_default="${cross_prefix}${nm_default}"
3885 pkg_config_default="${cross_prefix}${pkg_config_default}"
3886 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3887     ranlib_default="${cross_prefix}${ranlib_default} -D"
3888 else
3889     ranlib_default="${cross_prefix}${ranlib_default}"
3890 fi
3891 strip_default="${cross_prefix}${strip_default}"
3892 windres_default="${cross_prefix}${windres_default}"
3893
3894 sysinclude_default="${sysroot}/usr/include"
3895
3896 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3897     target_exec target_os x86asmexe nvcc
3898 enabled cross_compile || host_cc_default=$cc
3899 set_default host_cc
3900
3901 pkg_config_fail_message=""
3902 if ! $pkg_config --version >/dev/null 2>&1; then
3903     warn "$pkg_config not found, library detection may fail."
3904     pkg_config=false
3905 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3906     pkg_config_fail_message="
3907 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3908 fi
3909
3910 if test $doxygen != $doxygen_default && \
3911   ! $doxygen --version >/dev/null 2>&1; then
3912     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3913 fi
3914
3915 exesuf() {
3916     case $1 in
3917         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3918     esac
3919 }
3920
3921 EXESUF=$(exesuf $target_os)
3922 HOSTEXESUF=$(exesuf $host_os)
3923
3924 # set temporary file name
3925 : ${TMPDIR:=$TEMPDIR}
3926 : ${TMPDIR:=$TMP}
3927 : ${TMPDIR:=/tmp}
3928
3929 if [ -n "$tempprefix" ] ; then
3930     mktemp(){
3931         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3932         echo "$tmpname"
3933         mkdir "$tmpname"
3934     }
3935 elif ! check_cmd mktemp -u XXXXXX; then
3936     # simple replacement for missing mktemp
3937     # NOT SAFE FOR GENERAL USE
3938     mktemp(){
3939         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3940         echo "$tmpname"
3941         mkdir "$tmpname"
3942     }
3943 fi
3944
3945 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3946     die "Unable to create temporary directory in $TMPDIR."
3947
3948 tmpfile(){
3949     tmp="${FFTMPDIR}/test"$2
3950     (set -C; exec > $tmp) 2> /dev/null ||
3951         die "Unable to create temporary file in $FFTMPDIR."
3952     eval $1=$tmp
3953 }
3954
3955 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3956 trap 'exit 2' INT
3957
3958 tmpfile TMPASM .asm
3959 tmpfile TMPC   .c
3960 tmpfile TMPCPP .cpp
3961 tmpfile TMPE   $EXESUF
3962 tmpfile TMPH   .h
3963 tmpfile TMPM   .m
3964 tmpfile TMPO   .o
3965 tmpfile TMPS   .S
3966 tmpfile TMPSH  .sh
3967 tmpfile TMPV   .ver
3968
3969 unset -f mktemp
3970
3971 chmod +x $TMPE
3972
3973 # make sure we can execute files in $TMPDIR
3974 cat > $TMPSH 2>> $logfile <<EOF
3975 #! /bin/sh
3976 EOF
3977 chmod +x $TMPSH >> $logfile 2>&1
3978 if ! $TMPSH >> $logfile 2>&1; then
3979     cat <<EOF
3980 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3981 variable to another directory and make sure that it is not mounted noexec.
3982 EOF
3983     die "Sanity test failed."
3984 fi
3985
3986 armasm_flags(){
3987     for flag; do
3988         case $flag in
3989             # Filter out MSVC cl.exe options from cflags that shouldn't
3990             # be passed to gas-preprocessor
3991             -M[TD]*)                                            ;;
3992             *)                  echo $flag                      ;;
3993         esac
3994    done
3995 }
3996
3997 ccc_flags(){
3998     for flag; do
3999         case $flag in
4000             -std=c99)           echo -c99                       ;;
4001             -mcpu=*)            echo -arch ${flag#*=}           ;;
4002             -mieee)             echo -ieee                      ;;
4003             -O*|-fast)          echo $flag                      ;;
4004             -fno-math-errno)    echo -assume nomath_errno       ;;
4005             -g)                 echo -g3                        ;;
4006             -Wall)              echo -msg_enable level2         ;;
4007             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
4008             -Wl,*)              echo $flag                      ;;
4009             -f*|-W*)                                            ;;
4010             *)                  echo $flag                      ;;
4011         esac
4012    done
4013 }
4014
4015 cparser_flags(){
4016     for flag; do
4017         case $flag in
4018             -Wno-switch)             echo -Wno-switch-enum ;;
4019             -Wno-format-zero-length) ;;
4020             -Wdisabled-optimization) ;;
4021             -Wno-pointer-sign)       echo -Wno-other ;;
4022             *)                       echo $flag ;;
4023         esac
4024     done
4025 }
4026
4027 msvc_common_flags(){
4028     for flag; do
4029         case $flag in
4030             # In addition to specifying certain flags under the compiler
4031             # specific filters, they must be specified here as well or else the
4032             # generic catch all at the bottom will print the original flag.
4033             -Wall)                ;;
4034             -Wextra)              ;;
4035             -std=c99)             ;;
4036             # Common flags
4037             -fomit-frame-pointer) ;;
4038             -g)                   echo -Z7 ;;
4039             -fno-math-errno)      ;;
4040             -fno-common)          ;;
4041             -fno-signed-zeros)    ;;
4042             -fPIC)                ;;
4043             -mthumb)              ;;
4044             -march=*)             ;;
4045             -lz)                  echo zlib.lib ;;
4046             -lx264)               echo libx264.lib ;;
4047             -lstdc++)             ;;
4048             -l*)                  echo ${flag#-l}.lib ;;
4049             -LARGEADDRESSAWARE)   echo $flag ;;
4050             -L*)                  echo -libpath:${flag#-L} ;;
4051             *)                    echo $flag ;;
4052         esac
4053     done
4054 }
4055
4056 msvc_flags(){
4057     msvc_common_flags "$@"
4058     for flag; do
4059         case $flag in
4060             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4061                                        -wd4554 ;;
4062             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4063                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4064                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4065                                        -wd4307 \
4066                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4067         esac
4068     done
4069 }
4070
4071 icl_flags(){
4072     msvc_common_flags "$@"
4073     for flag; do
4074         case $flag in
4075             # Despite what Intel's documentation says -Wall, which is supported
4076             # on Windows, does enable remarks so disable them here.
4077             -Wall)                echo $flag -Qdiag-disable:remark ;;
4078             -std=c99)             echo -Qstd=c99 ;;
4079             -flto)                echo -ipo ;;
4080         esac
4081     done
4082 }
4083
4084 icc_flags(){
4085     for flag; do
4086         case $flag in
4087             -flto)                echo -ipo ;;
4088             *)                    echo $flag ;;
4089         esac
4090     done
4091 }
4092
4093 pgi_flags(){
4094     for flag; do
4095         case $flag in
4096             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4097             -fomit-frame-pointer) echo -Mnoframe ;;
4098             -g)                   echo -gopt ;;
4099             *)                    echo $flag ;;
4100         esac
4101     done
4102 }
4103
4104 suncc_flags(){
4105     for flag; do
4106         case $flag in
4107             -march=*|-mcpu=*)
4108                 case "${flag#*=}" in
4109                     native)                   echo -xtarget=native       ;;
4110                     v9|niagara)               echo -xarch=sparc          ;;
4111                     ultrasparc)               echo -xarch=sparcvis       ;;
4112                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4113                     i586|pentium)             echo -xchip=pentium        ;;
4114                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4115                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4116                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4117                     pentium4*)          echo -xtarget=pentium4           ;;
4118                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4119                     *-sse3)             echo -xarch=sse3                 ;;
4120                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4121                     bonnell)                   echo -xarch=ssse3         ;;
4122                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4123                     westmere)                  echo -xtarget=westmere    ;;
4124                     silvermont)                echo -xarch=sse4_2        ;;
4125                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4126                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4127                                                echo -xarch=avx           ;;
4128                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4129                     btver1)                    echo -xarch=amdsse4a      ;;
4130                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4131                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4132                     k8|opteron|athlon64|athlon-fx)
4133                                                echo -xarch=sse2a         ;;
4134                     athlon*)                   echo -xarch=pentium_proa  ;;
4135                 esac
4136                 ;;
4137             -std=c99)             echo -xc99              ;;
4138             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4139             -fPIC)                echo -KPIC -xcode=pic32 ;;
4140             -W*,*)                echo $flag              ;;
4141             -f*-*|-W*|-mimpure-text)                      ;;
4142             -shared)              echo -G                 ;;
4143             *)                    echo $flag              ;;
4144         esac
4145     done
4146 }
4147
4148 tms470_flags(){
4149     for flag; do
4150         case $flag in
4151             -march=*|-mcpu=*)
4152                 case "${flag#*=}" in
4153                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4154                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4155                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4156                     armv6*|arm11*)          echo -mv=6   ;;
4157                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4158                                             echo -mv=5e  ;;
4159                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4160                 esac
4161                 ;;
4162             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4163             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4164             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4165             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4166             -msoft-float)   echo --float_support=vfplib       ;;
4167             -O[0-3]|-mf=*)  echo $flag                        ;;
4168             -g)             echo -g -mn                       ;;
4169             -pds=*)         echo $flag                        ;;
4170             -D*|-I*)        echo $flag                        ;;
4171             --gcc|--abi=*)  echo $flag                        ;;
4172             -me)            echo $flag                        ;;
4173         esac
4174     done
4175 }
4176
4177 probe_cc(){
4178     pfx=$1
4179     _cc=$2
4180     first=$3
4181
4182     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4183     unset _ld_o _ldflags _ld_lib _ld_path
4184     unset _depflags _DEPCMD _DEPFLAGS
4185     _flags_filter=echo
4186
4187     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4188         true # no-op to avoid reading stdin in following checks
4189     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4190         _type=llvm_gcc
4191         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4192         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4193         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4194         _cflags_speed='-O3'
4195         _cflags_size='-Os'
4196     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4197         _type=gcc
4198         gcc_version=$($_cc --version | head -n1)
4199         gcc_basever=$($_cc -dumpversion)
4200         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4201         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4202         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4203         case $gcc_basever in
4204             2) ;;
4205             2.*) ;;
4206             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4207         esac
4208         if [ "$first" = true ]; then
4209             case $gcc_basever in
4210                 4.2*)
4211                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4212             esac
4213         fi
4214         _cflags_speed='-O3'
4215         _cflags_size='-Os'
4216     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4217         _type=icc
4218         _ident=$($_cc --version | head -n1)
4219         _depflags='-MMD'
4220         _cflags_speed='-O3'
4221         _cflags_size='-Os'
4222         _cflags_noopt='-O1'
4223         _flags_filter=icc_flags
4224     elif $_cc -v 2>&1 | grep -q xlc; then
4225         _type=xlc
4226         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4227         _cflags_speed='-O5'
4228         _cflags_size='-O5 -qcompact'
4229     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4230         _type=ccc
4231         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4232         _DEPFLAGS='-M'
4233         _cflags_speed='-fast'
4234         _cflags_size='-O1'
4235         _flags_filter=ccc_flags
4236     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4237         test -d "$sysroot" || die "No valid sysroot specified."
4238         _type=armcc
4239         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4240         armcc_conf="$PWD/armcc.conf"
4241         $_cc --arm_linux_configure                 \
4242              --arm_linux_config_file="$armcc_conf" \
4243              --configure_sysroot="$sysroot"        \
4244              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4245              die "Error creating armcc configuration file."
4246         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4247         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4248         as_default="${cross_prefix}gcc"
4249         _depflags='-MMD'
4250         _cflags_speed='-O3'
4251         _cflags_size='-Os'
4252     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4253         _type=tms470
4254         _ident=$($_cc -version | head -n1 | tr -s ' ')
4255         _flags='--gcc --abi=eabi -me'
4256         _cc_e='-ppl -fe=$@'
4257         _cc_o='-fe=$@'
4258         _depflags='-ppa -ppd=$(@:.o=.d)'
4259         _cflags_speed='-O3 -mf=5'
4260         _cflags_size='-O3 -mf=2'
4261         _flags_filter=tms470_flags
4262     elif $_cc -v 2>&1 | grep -q clang; then
4263         _type=clang
4264         _ident=$($_cc --version 2>/dev/null | head -n1)
4265         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4266         _cflags_speed='-O3'
4267         _cflags_size='-Oz'
4268     elif $_cc -V 2>&1 | grep -q Sun; then
4269         _type=suncc
4270         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4271         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4272         _DEPFLAGS='-xM1 -xc99'
4273         _ldflags='-std=c99'
4274         _cflags_speed='-O5'
4275         _cflags_size='-O5 -xspace'
4276         _flags_filter=suncc_flags
4277     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4278         _type=pathscale
4279         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4280         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4281         _cflags_speed='-O2'
4282         _cflags_size='-Os'
4283         _flags_filter='filter_out -Wdisabled-optimization'
4284     elif $_cc -v 2>&1 | grep -q Open64; then
4285         _type=open64
4286         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4287         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4288         _cflags_speed='-O2'
4289         _cflags_size='-Os'
4290         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4291     elif $_cc -V 2>&1 | grep -q Portland; then
4292         _type=pgi
4293         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4294         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4295         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4296         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4297         _cflags_noopt="-O"
4298         _flags_filter=pgi_flags
4299     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4300         _type=armasm
4301         _ident=$($_cc | head -n1)
4302         # 4509: "This form of conditional instruction is deprecated"
4303         _flags="-nologo -ignore 4509"
4304         _flags_filter=armasm_flags
4305     elif $_cc 2>&1 | grep -q Intel; then
4306         _type=icl
4307         _ident=$($_cc 2>&1 | head -n1)
4308         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4309         # Not only is O3 broken on 13.x+ but it is slower on all previous
4310         # versions (tested) as well.
4311         _cflags_speed="-O2"
4312         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4313         if $_cc 2>&1 | grep -q Linker; then
4314             _ld_o='-out:$@'
4315         else
4316             _ld_o='-Fe$@'
4317         fi
4318         _cc_o='-Fo$@'
4319         _cc_e='-P'
4320         _flags_filter=icl_flags
4321         _ld_lib='lib%.a'
4322         _ld_path='-libpath:'
4323         # -Qdiag-error to make icl error when seeing certain unknown arguments
4324         _flags='-nologo -Qdiag-error:4044,10157'
4325         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4326         # with MSVC which enables it by default.
4327         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4328         disable stripping
4329     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4330         # lld can emulate multiple different linkers; in ms link.exe mode,
4331         # the -? parameter gives the help output which contains an identifyable
4332         # string, while it gives an error in other modes.
4333         _type=lld-link
4334         # The link.exe mode doesn't have a switch for getting the version,
4335         # but we can force it back to gnu mode and get the version from there.
4336         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4337         _ld_o='-out:$@'
4338         _flags_filter=msvc_flags
4339         _ld_lib='lib%.a'
4340         _ld_path='-libpath:'
4341     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4342         _type=msvc
4343         _ident=$($_cc 2>&1 | head -n1)
4344         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4345         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4346         _cflags_speed="-O2"
4347         _cflags_size="-O1"
4348         _cflags_noopt="-O1"
4349         if $_cc -nologo- 2>&1 | grep -q Linker; then
4350             _ld_o='-out:$@'
4351         else
4352             _ld_o='-Fe$@'
4353         fi
4354         _cc_o='-Fo$@'
4355         _cc_e='-P -Fi$@'
4356         _flags_filter=msvc_flags
4357         _ld_lib='lib%.a'
4358         _ld_path='-libpath:'
4359         _flags='-nologo'
4360         disable stripping
4361     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4362         _type=cparser
4363         _ident=$($_cc --version | head -n1)
4364         _depflags='-MMD'
4365         _cflags_speed='-O4'
4366         _cflags_size='-O2'
4367         _flags_filter=cparser_flags
4368     fi
4369
4370     eval ${pfx}_type=\$_type
4371     eval ${pfx}_ident=\$_ident
4372 }
4373
4374 set_ccvars(){
4375     eval ${1}_C=\${_cc_c-\${${1}_C}}
4376     eval ${1}_E=\${_cc_e-\${${1}_E}}
4377     eval ${1}_O=\${_cc_o-\${${1}_O}}
4378
4379     if [ -n "$_depflags" ]; then
4380         eval ${1}_DEPFLAGS=\$_depflags
4381     else
4382         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4383         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4384         eval DEP${1}FLAGS=\$_flags
4385     fi
4386 }
4387
4388 probe_cc cc "$cc" "true"
4389 cflags_filter=$_flags_filter
4390 cflags_speed=$_cflags_speed
4391 cflags_size=$_cflags_size
4392 cflags_noopt=$_cflags_noopt
4393 add_cflags $_flags $_cflags
4394 cc_ldflags=$_ldflags
4395 set_ccvars CC
4396 set_ccvars CXX
4397
4398 probe_cc hostcc "$host_cc"
4399 host_cflags_filter=$_flags_filter
4400 host_cflags_speed=$_cflags_speed
4401 add_host_cflags  $_flags $_cflags
4402 set_ccvars HOSTCC
4403
4404 test -n "$cc_type" && enable $cc_type ||
4405     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4406
4407 : ${as_default:=$cc}
4408 : ${objcc_default:=$cc}
4409 : ${dep_cc_default:=$cc}
4410 : ${ld_default:=$cc}
4411 : ${host_ld_default:=$host_cc}
4412 set_default ar as objcc dep_cc ld ln_s host_ld windres
4413
4414 probe_cc as "$as"
4415 asflags_filter=$_flags_filter
4416 add_asflags $_flags $_cflags
4417 set_ccvars AS
4418
4419 probe_cc objcc "$objcc"
4420 objcflags_filter=$_flags_filter
4421 add_objcflags $_flags $_cflags
4422 set_ccvars OBJC
4423
4424 probe_cc ld "$ld"
4425 ldflags_filter=$_flags_filter
4426 add_ldflags $_flags $_ldflags
4427 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4428 LD_O=${_ld_o-$LD_O}
4429 LD_LIB=${_ld_lib-$LD_LIB}
4430 LD_PATH=${_ld_path-$LD_PATH}
4431
4432 probe_cc hostld "$host_ld"
4433 host_ldflags_filter=$_flags_filter
4434 add_host_ldflags $_flags $_ldflags
4435 HOSTLD_O=${_ld_o-$HOSTLD_O}
4436
4437 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4438     probe_cc depcc "$dep_cc"
4439     CCDEP=${_DEPCMD:-$DEPCMD}
4440     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4441     DEPCCFLAGS=$_flags
4442 fi
4443
4444 if $ar 2>&1 | grep -q Microsoft; then
4445     arflags="-nologo"
4446     ar_o='-out:$@'
4447 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4448     arflags="rq"
4449     ar_o='$@'
4450 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4451     arflags='-Xany -r -c'
4452     ar_o='$@'
4453 elif $ar 2>&1 | grep -q "\[D\] "; then
4454     arflags="rcD"
4455     ar_o='$@'
4456 else
4457     arflags="rc"
4458     ar_o='$@'
4459 fi
4460
4461 add_cflags $extra_cflags
4462 add_cxxflags $extra_cxxflags
4463 add_objcflags $extra_objcflags
4464 add_asflags $extra_cflags
4465
4466 if test -n "$sysroot"; then
4467     case "$cc_type" in
4468         gcc|llvm_gcc|clang)
4469             add_cppflags --sysroot="$sysroot"
4470             add_ldflags --sysroot="$sysroot"
4471 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4472             add_cppflags -isysroot "$sysroot"
4473             add_ldflags -isysroot "$sysroot"
4474         ;;
4475         tms470)
4476             add_cppflags -I"$sysinclude"
4477             add_ldflags  --sysroot="$sysroot"
4478         ;;
4479     esac
4480 fi
4481
4482 if test "$cpu" = host; then
4483     enabled cross_compile &&
4484         die "--cpu=host makes no sense when cross-compiling."
4485
4486     case "$cc_type" in
4487         gcc|llvm_gcc)
4488             check_native(){
4489                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4490                 sed -n "/cc1.*$1=/{
4491                             s/.*$1=\\([^ ]*\\).*/\\1/
4492                             p
4493                             q
4494                         }" $TMPE
4495             }
4496             cpu=$(check_native -march || check_native -mcpu)
4497         ;;
4498         clang)
4499             check_native(){
4500                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4501                 sed -n "/cc1.*-target-cpu /{
4502                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4503                             p
4504                             q
4505                         }" $TMPE
4506             }
4507             cpu=$(check_native -march)
4508         ;;
4509     esac
4510
4511     test "${cpu:-host}" = host &&
4512         die "--cpu=host not supported with compiler $cc"
4513 fi
4514
4515 # Deal with common $arch aliases
4516 case "$arch" in
4517     aarch64|arm64)
4518         arch="aarch64"
4519     ;;
4520     arm*|iPad*|iPhone*)
4521         arch="arm"
4522     ;;
4523     mips*|IP*)
4524         case "$arch" in
4525         *el)
4526             add_cppflags -EL
4527             add_ldflags -EL
4528         ;;
4529         *eb)
4530             add_cppflags -EB
4531             add_ldflags -EB
4532         ;;
4533         esac
4534         arch="mips"
4535     ;;
4536     parisc*|hppa*)
4537         arch="parisc"
4538     ;;
4539     "Power Macintosh"|ppc*|powerpc*)
4540         arch="ppc"
4541     ;;
4542     s390|s390x)
4543         arch="s390"
4544     ;;
4545     sh4|sh)
4546         arch="sh4"
4547     ;;
4548     sun4*|sparc*)
4549         arch="sparc"
4550     ;;
4551     tilegx|tile-gx)
4552         arch="tilegx"
4553     ;;
4554     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4555         arch="x86"
4556     ;;
4557 esac
4558
4559 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4560 enable $arch
4561
4562 # Add processor-specific flags
4563 if enabled aarch64; then
4564
4565     case $cpu in
4566         armv*)
4567             cpuflags="-march=$cpu"
4568         ;;
4569         *)
4570             cpuflags="-mcpu=$cpu"
4571         ;;
4572     esac
4573
4574 elif enabled alpha; then
4575
4576     cpuflags="-mcpu=$cpu"
4577
4578 elif enabled arm; then
4579
4580     check_arm_arch() {
4581         check_cpp_condition stddef.h \
4582             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4583             $cpuflags
4584     }
4585
4586     probe_arm_arch() {
4587         if   check_arm_arch 4;        then echo armv4
4588         elif check_arm_arch 4T;       then echo armv4t
4589         elif check_arm_arch 5;        then echo armv5
4590         elif check_arm_arch 5E;       then echo armv5e
4591         elif check_arm_arch 5T;       then echo armv5t
4592         elif check_arm_arch 5TE;      then echo armv5te
4593         elif check_arm_arch 5TEJ;     then echo armv5te
4594         elif check_arm_arch 6;        then echo armv6
4595         elif check_arm_arch 6J;       then echo armv6j
4596         elif check_arm_arch 6K;       then echo armv6k
4597         elif check_arm_arch 6Z;       then echo armv6z
4598         elif check_arm_arch 6ZK;      then echo armv6zk
4599         elif check_arm_arch 6T2;      then echo armv6t2
4600         elif check_arm_arch 7;        then echo armv7
4601         elif check_arm_arch 7A  7_A;  then echo armv7-a
4602         elif check_arm_arch 7S;       then echo armv7-a
4603         elif check_arm_arch 7R  7_R;  then echo armv7-r
4604         elif check_arm_arch 7M  7_M;  then echo armv7-m
4605         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4606         elif check_arm_arch 8A  8_A;  then echo armv8-a
4607         fi
4608     }
4609
4610     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4611
4612     case $cpu in
4613         armv*)
4614             cpuflags="-march=$cpu"
4615             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4616         ;;
4617         *)
4618             cpuflags="-mcpu=$cpu"
4619             case $cpu in
4620                 cortex-a*)                               subarch=armv7a  ;;
4621                 cortex-r*)                               subarch=armv7r  ;;
4622                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4623                 arm11*)                                  subarch=armv6   ;;
4624                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4625                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4626                 *)                             subarch=$(probe_arm_arch) ;;
4627             esac
4628         ;;
4629     esac
4630
4631     case "$subarch" in
4632         armv5t*)    enable fast_clz                ;;
4633         armv[6-8]*)
4634             enable fast_clz
4635             disabled fast_unaligned || enable fast_unaligned
4636             ;;
4637     esac
4638
4639 elif enabled avr32; then
4640
4641     case $cpu in
4642         ap7[02]0[0-2])
4643             subarch="avr32_ap"
4644             cpuflags="-mpart=$cpu"
4645         ;;
4646         ap)
4647             subarch="avr32_ap"
4648             cpuflags="-march=$cpu"
4649         ;;
4650         uc3[ab]*)
4651             subarch="avr32_uc"
4652             cpuflags="-mcpu=$cpu"
4653         ;;
4654         uc)
4655             subarch="avr32_uc"
4656             cpuflags="-march=$cpu"
4657         ;;
4658     esac
4659
4660 elif enabled bfin; then
4661
4662     cpuflags="-mcpu=$cpu"
4663
4664 elif enabled mips; then
4665
4666     cpuflags="-march=$cpu"
4667
4668     if [ "$cpu" != "generic" ]; then
4669         disable mips32r2
4670         disable mips32r5
4671         disable mips64r2
4672         disable mips32r6
4673         disable mips64r6
4674         disable loongson2
4675         disable loongson3
4676
4677         case $cpu in
4678             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4679                 enable mips32r2
4680                 disable msa
4681             ;;
4682             p5600|i6400|p6600)
4683                 disable mipsdsp
4684                 disable mipsdspr2
4685             ;;
4686             loongson*)
4687                 enable loongson2
4688                 enable loongson3
4689                 enable local_aligned
4690                 enable simd_align_16
4691                 enable fast_64bit
4692                 enable fast_clz
4693                 enable fast_cmov
4694                 enable fast_unaligned
4695                 disable aligned_stack
4696                 disable mipsfpu
4697                 disable mipsdsp
4698                 disable mipsdspr2
4699                 case $cpu in
4700                     loongson3*)
4701                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4702                     ;;
4703                     loongson2e)
4704                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4705                     ;;
4706                     loongson2f)
4707                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4708                     ;;
4709                 esac
4710             ;;
4711             *)
4712                 # Unknown CPU. Disable everything.
4713                 warn "unknown CPU. Disabling all MIPS optimizations."
4714                 disable mipsfpu
4715                 disable mipsdsp
4716                 disable mipsdspr2
4717                 disable msa
4718                 disable mmi
4719             ;;
4720         esac
4721
4722         case $cpu in
4723             24kc)
4724                 disable mipsfpu
4725                 disable mipsdsp
4726                 disable mipsdspr2
4727             ;;
4728             24kf*)
4729                 disable mipsdsp
4730                 disable mipsdspr2
4731             ;;
4732             24kec|34kc|1004kc)
4733                 disable mipsfpu
4734                 disable mipsdspr2
4735             ;;
4736             24kef*|34kf*|1004kf*)
4737                 disable mipsdspr2
4738             ;;
4739             74kc)
4740                 disable mipsfpu
4741             ;;
4742             p5600)
4743                 enable mips32r5
4744                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4745             ;;
4746             i6400)
4747                 enable mips64r6
4748                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4749             ;;
4750             p6600)
4751                 enable mips64r6
4752                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4753             ;;
4754         esac
4755     else
4756         # We do not disable anything. Is up to the user to disable the unwanted features.
4757         warn 'generic cpu selected'
4758     fi
4759
4760 elif enabled ppc; then
4761
4762     disable ldbrx
4763
4764     case $(tolower $cpu) in
4765         601|ppc601|powerpc601)
4766             cpuflags="-mcpu=601"
4767             disable altivec
4768         ;;
4769         603*|ppc603*|powerpc603*)
4770             cpuflags="-mcpu=603"
4771             disable altivec
4772         ;;
4773         604*|ppc604*|powerpc604*)
4774             cpuflags="-mcpu=604"
4775             disable altivec
4776         ;;
4777         g3|75*|ppc75*|powerpc75*)
4778             cpuflags="-mcpu=750"
4779             disable altivec
4780         ;;
4781         g4|745*|ppc745*|powerpc745*)
4782             cpuflags="-mcpu=7450"
4783             disable vsx
4784         ;;
4785         74*|ppc74*|powerpc74*)
4786             cpuflags="-mcpu=7400"
4787             disable vsx
4788         ;;
4789         g5|970|ppc970|powerpc970)
4790             cpuflags="-mcpu=970"
4791             disable vsx
4792         ;;
4793         power[3-6]*)
4794             cpuflags="-mcpu=$cpu"
4795             disable vsx
4796         ;;
4797         power[7-8]*)
4798             cpuflags="-mcpu=$cpu"
4799         ;;
4800         cell)
4801             cpuflags="-mcpu=cell"
4802             enable ldbrx
4803             disable vsx
4804         ;;
4805         e500mc)
4806             cpuflags="-mcpu=e500mc"
4807             disable altivec
4808         ;;
4809         e500v2)
4810             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4811             disable altivec
4812             disable dcbzl
4813         ;;
4814         e500)
4815             cpuflags="-mcpu=8540 -mhard-float"
4816             disable altivec
4817             disable dcbzl
4818         ;;
4819     esac
4820
4821 elif enabled sparc; then
4822
4823     case $cpu in
4824         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4825             cpuflags="-mcpu=$cpu"
4826         ;;
4827         ultrasparc*|niagara[234])
4828             cpuflags="-mcpu=$cpu"
4829         ;;
4830     esac
4831
4832 elif enabled x86; then
4833
4834     case $cpu in
4835         i[345]86|pentium)
4836             cpuflags="-march=$cpu"
4837             disable i686
4838             disable mmx
4839         ;;
4840         # targets that do NOT support nopl and conditional mov (cmov)
4841         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4842             cpuflags="-march=$cpu"
4843             disable i686
4844         ;;
4845         # targets that do support nopl and conditional mov (cmov)
4846         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4847         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4848         |amdfam10|barcelona|b[dt]ver*|znver*)
4849             cpuflags="-march=$cpu"
4850             enable i686
4851             enable fast_cmov
4852         ;;
4853         # targets that do support conditional mov but on which it's slow
4854         pentium4|pentium4m|prescott|nocona)
4855             cpuflags="-march=$cpu"
4856             enable i686
4857             disable fast_cmov
4858         ;;
4859     esac
4860
4861 fi
4862
4863 if [ "$cpu" != generic ]; then
4864     add_cflags  $cpuflags
4865     add_asflags $cpuflags
4866     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4867 fi
4868
4869 # compiler sanity check
4870 check_exec <<EOF
4871 int main(void){ return 0; }
4872 EOF
4873 if test "$?" != 0; then
4874     echo "$cc is unable to create