Merge commit 'b5f19f7478492307e4b4763aeac3180faf50e17f'
[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_dn_directive
2056     as_fpu_directive
2057     as_func
2058     as_object_arch
2059     asm_mod_q
2060     attribute_may_alias
2061     attribute_packed
2062     blocks_extension
2063     ebp_available
2064     ebx_available
2065     gnu_as
2066     gnu_windres
2067     ibm_asm
2068     inline_asm_direct_symbol_refs
2069     inline_asm_labels
2070     inline_asm_nonlocal_labels
2071     pragma_deprecated
2072     rsync_contimeout
2073     symver_asm_label
2074     symver_gnu_asm
2075     vfp_args
2076     xform_asm
2077     xmm_clobbers
2078 "
2079
2080 TYPES_LIST="
2081     CONDITION_VARIABLE_Ptr
2082     kCMVideoCodecType_HEVC
2083     socklen_t
2084     struct_addrinfo
2085     struct_group_source_req
2086     struct_ip_mreq_source
2087     struct_ipv6_mreq
2088     struct_msghdr_msg_flags
2089     struct_pollfd
2090     struct_rusage_ru_maxrss
2091     struct_sctp_event_subscribe
2092     struct_sockaddr_in6
2093     struct_sockaddr_sa_len
2094     struct_sockaddr_storage
2095     struct_stat_st_mtim_tv_nsec
2096     struct_v4l2_frmivalenum_discrete
2097 "
2098
2099 HAVE_LIST="
2100     $ARCH_EXT_LIST
2101     $(add_suffix _external $ARCH_EXT_LIST)
2102     $(add_suffix _inline   $ARCH_EXT_LIST)
2103     $ARCH_FEATURES
2104     $ATOMICS_LIST
2105     $BUILTIN_LIST
2106     $COMPLEX_FUNCS
2107     $HAVE_LIST_CMDLINE
2108     $HAVE_LIST_PUB
2109     $HEADERS_LIST
2110     $INTRINSICS_LIST
2111     $MATH_FUNCS
2112     $SYSTEM_FUNCS
2113     $THREADS_LIST
2114     $TOOLCHAIN_FEATURES
2115     $TYPES_LIST
2116     atomics_native
2117     dos_paths
2118     libc_msvcrt
2119     makeinfo
2120     makeinfo_html
2121     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2122     perl
2123     pod2man
2124     section_data_rel_ro
2125     texi2html
2126     threads
2127     uwp
2128     vaapi_drm
2129     vaapi_x11
2130     vdpau_x11
2131     winrt
2132 "
2133
2134 # options emitted with CONFIG_ prefix but not available on the command line
2135 CONFIG_EXTRA="
2136     aandcttables
2137     ac3dsp
2138     adts_header
2139     audio_frame_queue
2140     audiodsp
2141     blockdsp
2142     bswapdsp
2143     cabac
2144     cbs
2145     cbs_h264
2146     cbs_h265
2147     cbs_mpeg2
2148     dirac_parse
2149     dvprofile
2150     exif
2151     faandct
2152     faanidct
2153     fdctdsp
2154     flacdsp
2155     fmtconvert
2156     frame_thread_encoder
2157     g722dsp
2158     golomb
2159     gplv3
2160     h263dsp
2161     h264chroma
2162     h264dsp
2163     h264parse
2164     h264pred
2165     h264qpel
2166     hevcparse
2167     hpeldsp
2168     huffman
2169     huffyuvdsp
2170     huffyuvencdsp
2171     idctdsp
2172     iirfilter
2173     mdct15
2174     intrax8
2175     iso_media
2176     ividsp
2177     jpegtables
2178     lgplv3
2179     libx262
2180     llauddsp
2181     llviddsp
2182     llvidencdsp
2183     lpc
2184     lzf
2185     me_cmp
2186     mpeg_er
2187     mpegaudio
2188     mpegaudiodsp
2189     mpegaudioheader
2190     mpegvideo
2191     mpegvideoenc
2192     mss34dsp
2193     pixblockdsp
2194     qpeldsp
2195     qsv
2196     qsvdec
2197     qsvenc
2198     rangecoder
2199     riffdec
2200     riffenc
2201     rtpdec
2202     rtpenc_chain
2203     rv34dsp
2204     sinewin
2205     snappy
2206     srtp
2207     startcode
2208     texturedsp
2209     texturedspenc
2210     tpeldsp
2211     vaapi_1
2212     vaapi_encode
2213     vc1dsp
2214     videodsp
2215     vp3dsp
2216     vp56dsp
2217     vp8dsp
2218     wma_freqs
2219     wmv2dsp
2220 "
2221
2222 CMDLINE_SELECT="
2223     $ARCH_EXT_LIST
2224     $CONFIG_LIST
2225     $HAVE_LIST_CMDLINE
2226     $THREADS_LIST
2227     asm
2228     cross_compile
2229     debug
2230     extra_warnings
2231     logging
2232     lto
2233     optimizations
2234     rpath
2235     stripping
2236 "
2237
2238 PATHS_LIST="
2239     bindir
2240     datadir
2241     docdir
2242     incdir
2243     libdir
2244     mandir
2245     pkgconfigdir
2246     prefix
2247     shlibdir
2248     install_name_dir
2249 "
2250
2251 CMDLINE_SET="
2252     $PATHS_LIST
2253     ar
2254     arch
2255     as
2256     assert_level
2257     build_suffix
2258     cc
2259     objcc
2260     cpu
2261     cross_prefix
2262     custom_allocator
2263     cxx
2264     dep_cc
2265     doxygen
2266     env
2267     extra_version
2268     gas
2269     host_cc
2270     host_cflags
2271     host_extralibs
2272     host_ld
2273     host_ldflags
2274     host_os
2275     ignore_tests
2276     install
2277     ld
2278     ln_s
2279     logfile
2280     malloc_prefix
2281     nm
2282     optflags
2283     nvccflags
2284     pkg_config
2285     pkg_config_flags
2286     progs_suffix
2287     random_seed
2288     ranlib
2289     samples
2290     strip
2291     sws_max_filter_size
2292     sysinclude
2293     sysroot
2294     target_exec
2295     target_os
2296     target_path
2297     target_samples
2298     tempprefix
2299     toolchain
2300     valgrind
2301     x86asmexe
2302 "
2303
2304 CMDLINE_APPEND="
2305     extra_cflags
2306     extra_cxxflags
2307     extra_objcflags
2308     host_cppflags
2309 "
2310
2311 # code dependency declarations
2312
2313 # architecture extensions
2314
2315 armv5te_deps="arm"
2316 armv6_deps="arm"
2317 armv6t2_deps="arm"
2318 armv8_deps="aarch64"
2319 neon_deps_any="aarch64 arm"
2320 intrinsics_neon_deps="neon"
2321 vfp_deps_any="aarch64 arm"
2322 vfpv3_deps="vfp"
2323 setend_deps="arm"
2324
2325 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2326
2327 loongson2_deps="mips"
2328 loongson3_deps="mips"
2329 mipsfpu_deps="mips"
2330 mipsdsp_deps="mips"
2331 mipsdspr2_deps="mips"
2332 mips32r2_deps="mips"
2333 mips32r5_deps="mips"
2334 mips32r6_deps="mips"
2335 mips64r2_deps="mips"
2336 mips64r6_deps="mips"
2337 msa_deps="mipsfpu"
2338 mmi_deps="mips"
2339
2340 altivec_deps="ppc"
2341 dcbzl_deps="ppc"
2342 ldbrx_deps="ppc"
2343 ppc4xx_deps="ppc"
2344 vsx_deps="altivec"
2345 power8_deps="vsx"
2346
2347 cpunop_deps="i686"
2348 x86_64_select="i686"
2349 x86_64_suggest="fast_cmov"
2350
2351 amd3dnow_deps="mmx"
2352 amd3dnowext_deps="amd3dnow"
2353 i686_deps="x86"
2354 mmx_deps="x86"
2355 mmxext_deps="mmx"
2356 sse_deps="mmxext"
2357 sse2_deps="sse"
2358 sse3_deps="sse2"
2359 ssse3_deps="sse3"
2360 sse4_deps="ssse3"
2361 sse42_deps="sse4"
2362 aesni_deps="sse42"
2363 avx_deps="sse42"
2364 xop_deps="avx"
2365 fma3_deps="avx"
2366 fma4_deps="avx"
2367 avx2_deps="avx"
2368
2369 mmx_external_deps="x86asm"
2370 mmx_inline_deps="inline_asm"
2371 mmx_suggest="mmx_external mmx_inline"
2372
2373 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2374     eval dep=\$${ext}_deps
2375     eval ${ext}_external_deps='"${dep}_external"'
2376     eval ${ext}_inline_deps='"${dep}_inline"'
2377     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2378 done
2379
2380 aligned_stack_if_any="aarch64 ppc x86"
2381 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2382 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2383 fast_unaligned_if_any="aarch64 ppc x86"
2384 simd_align_16_if_any="altivec neon sse"
2385 simd_align_32_if_any="avx"
2386
2387 # system capabilities
2388 symver_if_any="symver_asm_label symver_gnu_asm"
2389 valgrind_backtrace_conflict="optimizations"
2390 valgrind_backtrace_deps="valgrind_valgrind_h"
2391
2392 # threading support
2393 atomics_gcc_if="sync_val_compare_and_swap"
2394 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2395 atomics_win32_if="MemoryBarrier"
2396 atomics_native_if_any="$ATOMICS_LIST"
2397 w32threads_deps="atomics_native"
2398 threads_if_any="$THREADS_LIST"
2399
2400 # subsystems
2401 cbs_h264_select="cbs golomb"
2402 cbs_h265_select="cbs golomb"
2403 cbs_mpeg2_select="cbs"
2404 dct_select="rdft"
2405 dirac_parse_select="golomb"
2406 error_resilience_select="me_cmp"
2407 faandct_deps="faan fdctdsp"
2408 faanidct_deps="faan idctdsp"
2409 h264dsp_select="startcode"
2410 hevcparse_select="golomb"
2411 frame_thread_encoder_deps="encoders threads"
2412 intrax8_select="blockdsp idctdsp"
2413 mdct_select="fft"
2414 mdct15_select="fft"
2415 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2416 mpeg_er_select="error_resilience"
2417 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2418 mpegaudiodsp_select="dct"
2419 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2420 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2421 vc1dsp_select="h264chroma qpeldsp startcode"
2422 rdft_select="fft"
2423
2424 # decoders / encoders
2425 aac_decoder_select="adts_header mdct15 mdct sinewin"
2426 aac_fixed_decoder_select="mdct sinewin"
2427 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2428 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2429 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2430 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2431 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2432 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2433 adpcm_g722_decoder_select="g722dsp"
2434 adpcm_g722_encoder_select="g722dsp"
2435 aic_decoder_select="golomb idctdsp"
2436 alac_encoder_select="lpc"
2437 als_decoder_select="bswapdsp"
2438 amrnb_decoder_select="lsp"
2439 amrwb_decoder_select="lsp"
2440 amv_decoder_select="sp5x_decoder exif"
2441 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2442 ape_decoder_select="bswapdsp llauddsp"
2443 apng_decoder_select="zlib"
2444 apng_encoder_select="llvidencdsp zlib"
2445 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2446 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2447 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2448 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2449 atrac1_decoder_select="mdct sinewin"
2450 atrac3_decoder_select="mdct"
2451 atrac3p_decoder_select="mdct sinewin"
2452 avrn_decoder_select="exif jpegtables"
2453 bink_decoder_select="blockdsp hpeldsp"
2454 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2455 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2456 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2457 clearvideo_decoder_select="idctdsp"
2458 cllc_decoder_select="bswapdsp"
2459 comfortnoise_encoder_select="lpc"
2460 cook_decoder_select="audiodsp mdct sinewin"
2461 cscd_decoder_select="lzo"
2462 cscd_decoder_suggest="zlib"
2463 dca_decoder_select="mdct"
2464 dds_decoder_select="texturedsp"
2465 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2466 dnxhd_decoder_select="blockdsp idctdsp"
2467 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2468 dolby_e_decoder_select="mdct"
2469 dvvideo_decoder_select="dvprofile idctdsp"
2470 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2471 dxa_decoder_select="zlib"
2472 dxv_decoder_select="lzf texturedsp"
2473 eac3_decoder_select="ac3_decoder"
2474 eac3_encoder_select="ac3_encoder"
2475 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2476 eatgq_decoder_select="aandcttables"
2477 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2478 exr_decoder_select="zlib"
2479 ffv1_decoder_select="rangecoder"
2480 ffv1_encoder_select="rangecoder"
2481 ffvhuff_decoder_select="huffyuv_decoder"
2482 ffvhuff_encoder_select="huffyuv_encoder"
2483 fic_decoder_select="golomb"
2484 flac_decoder_select="flacdsp"
2485 flac_encoder_select="bswapdsp flacdsp lpc"
2486 flashsv2_decoder_select="zlib"
2487 flashsv2_encoder_select="zlib"
2488 flashsv_decoder_select="zlib"
2489 flashsv_encoder_select="zlib"
2490 flv_decoder_select="h263_decoder"
2491 flv_encoder_select="h263_encoder"
2492 fourxm_decoder_select="blockdsp bswapdsp"
2493 fraps_decoder_select="bswapdsp huffman"
2494 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2495 g729_decoder_select="audiodsp"
2496 h261_decoder_select="mpegvideo"
2497 h261_encoder_select="aandcttables mpegvideoenc"
2498 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2499 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2500 h263i_decoder_select="h263_decoder"
2501 h263p_decoder_select="h263_decoder"
2502 h263p_encoder_select="h263_encoder"
2503 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2504 h264_decoder_suggest="error_resilience"
2505 hap_decoder_select="snappy texturedsp"
2506 hap_encoder_deps="libsnappy"
2507 hap_encoder_select="texturedspenc"
2508 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2509 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2510 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2511 iac_decoder_select="imc_decoder"
2512 imc_decoder_select="bswapdsp fft mdct sinewin"
2513 indeo3_decoder_select="hpeldsp"
2514 indeo4_decoder_select="ividsp"
2515 indeo5_decoder_select="ividsp"
2516 interplay_video_decoder_select="hpeldsp"
2517 jpegls_decoder_select="mjpeg_decoder"
2518 jv_decoder_select="blockdsp"
2519 lagarith_decoder_select="llviddsp"
2520 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2521 magicyuv_decoder_select="llviddsp"
2522 magicyuv_encoder_select="llvidencdsp"
2523 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2524 metasound_decoder_select="lsp mdct sinewin"
2525 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2526 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2527 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2528 mjpegb_decoder_select="mjpeg_decoder"
2529 mlp_decoder_select="mlp_parser"
2530 mlp_encoder_select="lpc"
2531 motionpixels_decoder_select="bswapdsp"
2532 mp1_decoder_select="mpegaudio"
2533 mp1float_decoder_select="mpegaudio"
2534 mp2_decoder_select="mpegaudio"
2535 mp2float_decoder_select="mpegaudio"
2536 mp3_decoder_select="mpegaudio"
2537 mp3adu_decoder_select="mpegaudio"
2538 mp3adufloat_decoder_select="mpegaudio"
2539 mp3float_decoder_select="mpegaudio"
2540 mp3on4_decoder_select="mpegaudio"
2541 mp3on4float_decoder_select="mpegaudio"
2542 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2543 mpc8_decoder_select="mpegaudiodsp"
2544 mpegvideo_decoder_select="mpegvideo"
2545 mpeg1video_decoder_select="mpegvideo"
2546 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2547 mpeg2video_decoder_select="mpegvideo"
2548 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2549 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2550 mpeg4_encoder_select="h263_encoder"
2551 msa1_decoder_select="mss34dsp"
2552 mscc_decoder_select="zlib"
2553 msmpeg4v1_decoder_select="h263_decoder"
2554 msmpeg4v2_decoder_select="h263_decoder"
2555 msmpeg4v2_encoder_select="h263_encoder"
2556 msmpeg4v3_decoder_select="h263_decoder"
2557 msmpeg4v3_encoder_select="h263_encoder"
2558 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2559 mts2_decoder_select="mss34dsp"
2560 mxpeg_decoder_select="mjpeg_decoder"
2561 nellymoser_decoder_select="mdct sinewin"
2562 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2563 nuv_decoder_select="idctdsp lzo"
2564 on2avc_decoder_select="mdct"
2565 opus_decoder_deps="swresample"
2566 opus_decoder_select="mdct15"
2567 opus_encoder_select="audio_frame_queue mdct15"
2568 png_decoder_select="zlib"
2569 png_encoder_select="llvidencdsp zlib"
2570 prores_decoder_select="blockdsp idctdsp"
2571 prores_encoder_select="fdctdsp"
2572 qcelp_decoder_select="lsp"
2573 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2574 ra_144_decoder_select="audiodsp"
2575 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2576 ralf_decoder_select="golomb"
2577 rawvideo_decoder_select="bswapdsp"
2578 rscc_decoder_select="zlib"
2579 rtjpeg_decoder_select="me_cmp"
2580 rv10_decoder_select="h263_decoder"
2581 rv10_encoder_select="h263_encoder"
2582 rv20_decoder_select="h263_decoder"
2583 rv20_encoder_select="h263_encoder"
2584 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2585 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2586 screenpresso_decoder_select="zlib"
2587 shorten_decoder_select="bswapdsp"
2588 sipr_decoder_select="lsp"
2589 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2590 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2591 sonic_decoder_select="golomb rangecoder"
2592 sonic_encoder_select="golomb rangecoder"
2593 sonic_ls_encoder_select="golomb rangecoder"
2594 sp5x_decoder_select="mjpeg_decoder"
2595 srgc_decoder_select="zlib"
2596 svq1_decoder_select="hpeldsp"
2597 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2598 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2599 svq3_decoder_suggest="zlib"
2600 tak_decoder_select="audiodsp"
2601 tdsc_decoder_select="zlib mjpeg_decoder"
2602 theora_decoder_select="vp3_decoder"
2603 thp_decoder_select="mjpeg_decoder"
2604 tiff_decoder_suggest="zlib lzma"
2605 tiff_encoder_suggest="zlib"
2606 truehd_decoder_select="mlp_parser"
2607 truehd_encoder_select="lpc"
2608 truemotion2_decoder_select="bswapdsp"
2609 truespeech_decoder_select="bswapdsp"
2610 tscc_decoder_select="zlib"
2611 twinvq_decoder_select="mdct lsp sinewin"
2612 txd_decoder_select="texturedsp"
2613 utvideo_decoder_select="bswapdsp llviddsp"
2614 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2615 vble_decoder_select="llviddsp"
2616 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2617 vc1_qsv_decoder_deps="libmfx"
2618 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2619 vc1image_decoder_select="vc1_decoder"
2620 vorbis_decoder_select="mdct"
2621 vorbis_encoder_select="mdct"
2622 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2623 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2624 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2625 vp6a_decoder_select="vp6_decoder"
2626 vp6f_decoder_select="vp6_decoder"
2627 vp7_decoder_select="h264pred videodsp vp8dsp"
2628 vp8_decoder_select="h264pred videodsp vp8dsp"
2629 vp9_decoder_select="videodsp vp9_parser"
2630 webp_decoder_select="vp8_decoder exif"
2631 wmalossless_decoder_select="llauddsp"
2632 wmapro_decoder_select="mdct sinewin wma_freqs"
2633 wmav1_decoder_select="mdct sinewin wma_freqs"
2634 wmav1_encoder_select="mdct sinewin wma_freqs"
2635 wmav2_decoder_select="mdct sinewin wma_freqs"
2636 wmav2_encoder_select="mdct sinewin wma_freqs"
2637 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2638 wmv1_decoder_select="h263_decoder"
2639 wmv1_encoder_select="h263_encoder"
2640 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2641 wmv2_encoder_select="h263_encoder wmv2dsp"
2642 wmv3_decoder_select="vc1_decoder"
2643 wmv3image_decoder_select="wmv3_decoder"
2644 xma1_decoder_select="wmapro_decoder"
2645 xma2_decoder_select="wmapro_decoder"
2646 zerocodec_decoder_select="zlib"
2647 zlib_decoder_select="zlib"
2648 zlib_encoder_select="zlib"
2649 zmbv_decoder_select="zlib"
2650 zmbv_encoder_select="zlib"
2651
2652 # hardware accelerators
2653 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2654 cuda_deps_any="libdl LoadLibrary"
2655 cuvid_deps="cuda"
2656 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2657 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2658 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2659 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2660 xvmc_deps="X11_extensions_XvMClib_h"
2661
2662 h263_vaapi_hwaccel_deps="vaapi"
2663 h263_vaapi_hwaccel_select="h263_decoder"
2664 h263_videotoolbox_hwaccel_deps="videotoolbox"
2665 h263_videotoolbox_hwaccel_select="h263_decoder"
2666 h264_cuvid_hwaccel_deps="cuda cuvid"
2667 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2668 h264_d3d11va_hwaccel_deps="d3d11va"
2669 h264_d3d11va_hwaccel_select="h264_decoder"
2670 h264_d3d11va2_hwaccel_deps="d3d11va"
2671 h264_d3d11va2_hwaccel_select="h264_decoder"
2672 h264_dxva2_hwaccel_deps="dxva2"
2673 h264_dxva2_hwaccel_select="h264_decoder"
2674 h264_mediacodec_hwaccel_deps="mediacodec"
2675 h264_mmal_hwaccel_deps="mmal"
2676 h264_qsv_hwaccel_deps="libmfx"
2677 h264_vaapi_hwaccel_deps="vaapi"
2678 h264_vaapi_hwaccel_select="h264_decoder"
2679 h264_vdpau_hwaccel_deps="vdpau"
2680 h264_vdpau_hwaccel_select="h264_decoder"
2681 h264_videotoolbox_hwaccel_deps="videotoolbox"
2682 h264_videotoolbox_hwaccel_select="h264_decoder"
2683 hevc_cuvid_hwaccel_deps="cuda cuvid"
2684 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2685 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2686 hevc_d3d11va_hwaccel_select="hevc_decoder"
2687 hevc_mediacodec_hwaccel_deps="mediacodec"
2688 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2689 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2690 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2691 hevc_dxva2_hwaccel_select="hevc_decoder"
2692 hevc_qsv_hwaccel_deps="libmfx"
2693 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2694 hevc_vaapi_hwaccel_select="hevc_decoder"
2695 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2696 hevc_vdpau_hwaccel_select="hevc_decoder"
2697 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2698 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2699 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2700 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2701 mpeg_xvmc_hwaccel_deps="xvmc"
2702 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2703 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2704 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2705 mpeg1_vdpau_hwaccel_deps="vdpau"
2706 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2707 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2708 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2709 mpeg1_xvmc_hwaccel_deps="xvmc"
2710 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2711 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2712 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2713 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2714 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2715 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2716 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2717 mpeg2_dxva2_hwaccel_deps="dxva2"
2718 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2719 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2720 mpeg2_mmal_hwaccel_deps="mmal"
2721 mpeg2_qsv_hwaccel_deps="libmfx"
2722 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2723 mpeg2_vaapi_hwaccel_deps="vaapi"
2724 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2725 mpeg2_vdpau_hwaccel_deps="vdpau"
2726 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2727 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2728 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2729 mpeg2_xvmc_hwaccel_deps="xvmc"
2730 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2731 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2732 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2733 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2734 mpeg4_mmal_hwaccel_deps="mmal"
2735 mpeg4_vaapi_hwaccel_deps="vaapi"
2736 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2737 mpeg4_vdpau_hwaccel_deps="vdpau"
2738 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2739 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2740 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2741 vc1_cuvid_hwaccel_deps="cuda cuvid"
2742 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2743 vc1_d3d11va_hwaccel_deps="d3d11va"
2744 vc1_d3d11va_hwaccel_select="vc1_decoder"
2745 vc1_d3d11va2_hwaccel_deps="d3d11va"
2746 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2747 vc1_dxva2_hwaccel_deps="dxva2"
2748 vc1_dxva2_hwaccel_select="vc1_decoder"
2749 vc1_mmal_hwaccel_deps="mmal"
2750 vc1_qsv_hwaccel_deps="libmfx"
2751 vc1_qsv_hwaccel_select="qsvdec_vc1"
2752 vc1_vaapi_hwaccel_deps="vaapi"
2753 vc1_vaapi_hwaccel_select="vc1_decoder"
2754 vc1_vdpau_hwaccel_deps="vdpau"
2755 vc1_vdpau_hwaccel_select="vc1_decoder"
2756 vp8_cuvid_hwaccel_deps="cuda cuvid"
2757 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2758 vp9_cuvid_hwaccel_deps="cuda cuvid"
2759 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2760 vp8_mediacodec_hwaccel_deps="mediacodec"
2761 vp8_qsv_hwaccel_deps="libmfx"
2762 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2763 vp9_d3d11va_hwaccel_select="vp9_decoder"
2764 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2765 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2766 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2767 vp9_dxva2_hwaccel_select="vp9_decoder"
2768 vp9_mediacodec_hwaccel_deps="mediacodec"
2769 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2770 vp9_vaapi_hwaccel_select="vp9_decoder"
2771 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2772 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2773 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2774 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2775 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2776
2777 # hardware-accelerated codecs
2778 omx_deps="libdl pthreads"
2779 omx_rpi_select="omx"
2780 qsvdec_select="qsv"
2781 qsvenc_select="qsv"
2782 vaapi_encode_deps="vaapi"
2783 v4l2_m2m_deps_any="linux_videodev2_h"
2784
2785 hwupload_cuda_filter_deps="cuda"
2786 scale_npp_filter_deps="cuda libnpp"
2787 scale_cuda_filter_deps="cuda_sdk"
2788 thumbnail_cuda_filter_deps="cuda_sdk"
2789
2790 nvenc_deps="cuda"
2791 nvenc_deps_any="libdl LoadLibrary"
2792 nvenc_encoder_deps="nvenc"
2793
2794 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2795 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2796 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2797 h264_cuvid_decoder_deps="cuda cuvid"
2798 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2799 h264_mediacodec_decoder_deps="mediacodec"
2800 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2801 h264_mmal_decoder_deps="mmal"
2802 h264_nvenc_encoder_deps="nvenc"
2803 h264_omx_encoder_deps="omx"
2804 h264_qsv_decoder_deps="libmfx"
2805 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2806 h264_qsv_encoder_deps="libmfx"
2807 h264_qsv_encoder_select="qsvenc"
2808 h264_rkmpp_decoder_deps="rkmpp"
2809 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2810 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2811 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2812 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2813 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2814 hevc_cuvid_decoder_deps="cuda cuvid"
2815 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2816 hevc_mediacodec_decoder_deps="mediacodec"
2817 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2818 hevc_nvenc_encoder_deps="nvenc"
2819 hevc_qsv_decoder_deps="libmfx"
2820 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2821 hevc_qsv_encoder_deps="libmfx"
2822 hevc_qsv_encoder_select="hevcparse qsvenc"
2823 hevc_rkmpp_decoder_deps="rkmpp"
2824 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2825 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2826 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2827 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2828 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2829 mjpeg_cuvid_decoder_deps="cuda cuvid"
2830 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2831 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2832 mpeg1_cuvid_decoder_deps="cuda cuvid"
2833 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2834 mpeg2_crystalhd_decoder_select="crystalhd"
2835 mpeg2_cuvid_decoder_deps="cuda cuvid"
2836 mpeg2_mmal_decoder_deps="mmal"
2837 mpeg2_mediacodec_decoder_deps="mediacodec"
2838 mpeg2_qsv_decoder_deps="libmfx"
2839 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2840 mpeg2_qsv_encoder_deps="libmfx"
2841 mpeg2_qsv_encoder_select="qsvenc"
2842 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2843 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2844 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2845 mpeg4_crystalhd_decoder_select="crystalhd"
2846 mpeg4_cuvid_decoder_deps="cuda cuvid"
2847 mpeg4_mediacodec_decoder_deps="mediacodec"
2848 mpeg4_mmal_decoder_deps="mmal"
2849 mpeg4_omx_encoder_deps="omx"
2850 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2851 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2852 msmpeg4_crystalhd_decoder_select="crystalhd"
2853 nvenc_h264_encoder_select="h264_nvenc_encoder"
2854 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2855 vc1_crystalhd_decoder_select="crystalhd"
2856 vc1_cuvid_decoder_deps="cuda cuvid"
2857 vc1_mmal_decoder_deps="mmal"
2858 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2859 vp8_cuvid_decoder_deps="cuda cuvid"
2860 vp8_mediacodec_decoder_deps="mediacodec"
2861 vp8_qsv_decoder_deps="libmfx"
2862 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2863 vp8_rkmpp_decoder_deps="rkmpp"
2864 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2865 vp8_vaapi_encoder_select="vaapi_encode"
2866 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2867 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2868 vp9_cuvid_decoder_deps="cuda cuvid"
2869 vp9_mediacodec_decoder_deps="mediacodec"
2870 vp9_rkmpp_decoder_deps="rkmpp"
2871 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2872 vp9_vaapi_encoder_select="vaapi_encode"
2873 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2874 wmv3_crystalhd_decoder_select="crystalhd"
2875
2876 # parsers
2877 aac_parser_select="adts_header"
2878 h264_parser_select="golomb h264dsp h264parse"
2879 hevc_parser_select="hevcparse"
2880 mpegaudio_parser_select="mpegaudioheader"
2881 mpegvideo_parser_select="mpegvideo"
2882 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2883 vc1_parser_select="vc1dsp"
2884
2885 # bitstream_filters
2886 aac_adtstoasc_bsf_select="adts_header"
2887 h264_metadata_bsf_select="cbs_h264"
2888 h264_redundant_pps_bsf_select="cbs_h264"
2889 hevc_metadata_bsf_select="cbs_h265"
2890 mjpeg2jpeg_bsf_select="jpegtables"
2891 mpeg2_metadata_bsf_select="cbs_mpeg2"
2892 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2893
2894 # external libraries
2895 aac_at_decoder_deps="audiotoolbox"
2896 ac3_at_decoder_deps="audiotoolbox"
2897 ac3_at_decoder_select="ac3_parser"
2898 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2899 alac_at_decoder_deps="audiotoolbox"
2900 amr_nb_at_decoder_deps="audiotoolbox"
2901 avisynth_deps_any="libdl LoadLibrary"
2902 avisynth_demuxer_deps="avisynth"
2903 avisynth_demuxer_select="riffdec"
2904 eac3_at_decoder_deps="audiotoolbox"
2905 eac3_at_decoder_select="ac3_parser"
2906 gsm_ms_at_decoder_deps="audiotoolbox"
2907 ilbc_at_decoder_deps="audiotoolbox"
2908 mp1_at_decoder_deps="audiotoolbox"
2909 mp2_at_decoder_deps="audiotoolbox"
2910 mp3_at_decoder_deps="audiotoolbox"
2911 mp1_at_decoder_select="mpegaudioheader"
2912 mp2_at_decoder_select="mpegaudioheader"
2913 mp3_at_decoder_select="mpegaudioheader"
2914 pcm_alaw_at_decoder_deps="audiotoolbox"
2915 pcm_mulaw_at_decoder_deps="audiotoolbox"
2916 qdmc_at_decoder_deps="audiotoolbox"
2917 qdm2_at_decoder_deps="audiotoolbox"
2918 aac_at_encoder_deps="audiotoolbox"
2919 aac_at_encoder_select="audio_frame_queue"
2920 alac_at_encoder_deps="audiotoolbox"
2921 alac_at_encoder_select="audio_frame_queue"
2922 ilbc_at_encoder_deps="audiotoolbox"
2923 ilbc_at_encoder_select="audio_frame_queue"
2924 pcm_alaw_at_encoder_deps="audiotoolbox"
2925 pcm_alaw_at_encoder_select="audio_frame_queue"
2926 pcm_mulaw_at_encoder_deps="audiotoolbox"
2927 pcm_mulaw_at_encoder_select="audio_frame_queue"
2928 chromaprint_muxer_deps="chromaprint"
2929 h264_videotoolbox_encoder_deps="pthreads"
2930 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2931 libcelt_decoder_deps="libcelt"
2932 libfdk_aac_decoder_deps="libfdk_aac"
2933 libfdk_aac_encoder_deps="libfdk_aac"
2934 libfdk_aac_encoder_select="audio_frame_queue"
2935 libgme_demuxer_deps="libgme"
2936 libgsm_decoder_deps="libgsm"
2937 libgsm_encoder_deps="libgsm"
2938 libgsm_ms_decoder_deps="libgsm"
2939 libgsm_ms_encoder_deps="libgsm"
2940 libilbc_decoder_deps="libilbc"
2941 libilbc_encoder_deps="libilbc"
2942 libkvazaar_encoder_deps="libkvazaar"
2943 libmodplug_demuxer_deps="libmodplug"
2944 libmp3lame_encoder_deps="libmp3lame"
2945 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2946 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2947 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2948 libopencore_amrnb_encoder_select="audio_frame_queue"
2949 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2950 libopenh264_decoder_deps="libopenh264"
2951 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2952 libopenh264_encoder_deps="libopenh264"
2953 libopenjpeg_decoder_deps="libopenjpeg"
2954 libopenjpeg_encoder_deps="libopenjpeg"
2955 libopenmpt_demuxer_deps="libopenmpt"
2956 libopus_decoder_deps="libopus"
2957 libopus_encoder_deps="libopus"
2958 libopus_encoder_select="audio_frame_queue"
2959 librsvg_decoder_deps="librsvg"
2960 libshine_encoder_deps="libshine"
2961 libshine_encoder_select="audio_frame_queue"
2962 libspeex_decoder_deps="libspeex"
2963 libspeex_encoder_deps="libspeex"
2964 libspeex_encoder_select="audio_frame_queue"
2965 libtheora_encoder_deps="libtheora"
2966 libtwolame_encoder_deps="libtwolame"
2967 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2968 libvorbis_decoder_deps="libvorbis"
2969 libvorbis_encoder_deps="libvorbis libvorbisenc"
2970 libvorbis_encoder_select="audio_frame_queue"
2971 libvpx_vp8_decoder_deps="libvpx"
2972 libvpx_vp8_encoder_deps="libvpx"
2973 libvpx_vp9_decoder_deps="libvpx"
2974 libvpx_vp9_encoder_deps="libvpx"
2975 libwavpack_encoder_deps="libwavpack"
2976 libwavpack_encoder_select="audio_frame_queue"
2977 libwebp_encoder_deps="libwebp"
2978 libwebp_anim_encoder_deps="libwebp"
2979 libx262_encoder_deps="libx262"
2980 libx264_encoder_deps="libx264"
2981 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2982 libx264rgb_encoder_select="libx264_encoder"
2983 libx265_encoder_deps="libx265"
2984 libxavs_encoder_deps="libxavs"
2985 libxvid_encoder_deps="libxvid"
2986 libzvbi_teletext_decoder_deps="libzvbi"
2987 videotoolbox_suggest="coreservices"
2988 videotoolbox_deps="corefoundation coremedia corevideo"
2989 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2990
2991 # demuxers / muxers
2992 ac3_demuxer_select="ac3_parser"
2993 aiff_muxer_select="iso_media"
2994 asf_demuxer_select="riffdec"
2995 asf_o_demuxer_select="riffdec"
2996 asf_muxer_select="riffenc"
2997 asf_stream_muxer_select="asf_muxer"
2998 avi_demuxer_select="iso_media riffdec exif"
2999 avi_muxer_select="riffenc"
3000 caf_demuxer_select="iso_media riffdec"
3001 caf_muxer_select="iso_media"
3002 dash_muxer_select="mp4_muxer"
3003 dash_demuxer_deps="libxml2"
3004 dirac_demuxer_select="dirac_parser"
3005 dts_demuxer_select="dca_parser"
3006 dtshd_demuxer_select="dca_parser"
3007 dv_demuxer_select="dvprofile"
3008 dv_muxer_select="dvprofile"
3009 dxa_demuxer_select="riffdec"
3010 eac3_demuxer_select="ac3_parser"
3011 f4v_muxer_select="mov_muxer"
3012 fifo_muxer_deps="threads"
3013 flac_demuxer_select="flac_parser"
3014 hds_muxer_select="flv_muxer"
3015 hls_muxer_select="mpegts_muxer"
3016 hls_muxer_suggest="gcrypt openssl"
3017 image2_alias_pix_demuxer_select="image2_demuxer"
3018 image2_brender_pix_demuxer_select="image2_demuxer"
3019 ipod_muxer_select="mov_muxer"
3020 ismv_muxer_select="mov_muxer"
3021 matroska_audio_muxer_select="matroska_muxer"
3022 matroska_demuxer_select="iso_media riffdec"
3023 matroska_demuxer_suggest="bzlib lzo zlib"
3024 matroska_muxer_select="iso_media riffenc"
3025 mmf_muxer_select="riffenc"
3026 mov_demuxer_select="iso_media riffdec"
3027 mov_demuxer_suggest="zlib"
3028 mov_muxer_select="iso_media riffenc rtpenc_chain"
3029 mp3_demuxer_select="mpegaudio_parser"
3030 mp3_muxer_select="mpegaudioheader"
3031 mp4_muxer_select="mov_muxer"
3032 mpegts_demuxer_select="iso_media"
3033 mpegts_muxer_select="adts_muxer latm_muxer"
3034 mpegtsraw_demuxer_select="mpegts_demuxer"
3035 mxf_d10_muxer_select="mxf_muxer"
3036 mxf_opatom_muxer_select="mxf_muxer"
3037 nut_muxer_select="riffenc"
3038 nuv_demuxer_select="riffdec"
3039 oga_muxer_select="ogg_muxer"
3040 ogg_demuxer_select="dirac_parse"
3041 ogv_muxer_select="ogg_muxer"
3042 opus_muxer_select="ogg_muxer"
3043 psp_muxer_select="mov_muxer"
3044 rtp_demuxer_select="sdp_demuxer"
3045 rtp_muxer_select="golomb"
3046 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3047 rtsp_demuxer_select="http_protocol rtpdec"
3048 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3049 sap_demuxer_select="sdp_demuxer"
3050 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3051 sdp_demuxer_select="rtpdec"
3052 smoothstreaming_muxer_select="ismv_muxer"
3053 spdif_demuxer_select="adts_header"
3054 spdif_muxer_select="adts_header"
3055 spx_muxer_select="ogg_muxer"
3056 swf_demuxer_suggest="zlib"
3057 tak_demuxer_select="tak_parser"
3058 tg2_muxer_select="mov_muxer"
3059 tgp_muxer_select="mov_muxer"
3060 vobsub_demuxer_select="mpegps_demuxer"
3061 w64_demuxer_select="wav_demuxer"
3062 w64_muxer_select="wav_muxer"
3063 wav_demuxer_select="riffdec"
3064 wav_muxer_select="riffenc"
3065 webm_muxer_select="iso_media riffenc"
3066 webm_dash_manifest_demuxer_select="matroska_demuxer"
3067 wtv_demuxer_select="mpegts_demuxer riffdec"
3068 wtv_muxer_select="mpegts_muxer riffenc"
3069 xmv_demuxer_select="riffdec"
3070 xwma_demuxer_select="riffdec"
3071
3072 # indevs / outdevs
3073 alsa_indev_deps="alsa"
3074 alsa_outdev_deps="alsa"
3075 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3076 avfoundation_indev_suggest="coregraphics applicationservices"
3077 avfoundation_indev_extralibs="-framework Foundation"
3078 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3079 caca_outdev_deps="libcaca"
3080 decklink_deps_any="libdl LoadLibrary"
3081 decklink_indev_deps="decklink threads"
3082 decklink_indev_extralibs="-lstdc++"
3083 decklink_outdev_deps="decklink threads"
3084 decklink_outdev_extralibs="-lstdc++"
3085 libndi_newtek_indev_deps="libndi_newtek"
3086 libndi_newtek_indev_extralibs="-lndi"
3087 libndi_newtek_outdev_deps="libndi_newtek"
3088 libndi_newtek_outdev_extralibs="-lndi"
3089 dshow_indev_deps="IBaseFilter"
3090 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3091 fbdev_indev_deps="linux_fb_h"
3092 fbdev_outdev_deps="linux_fb_h"
3093 gdigrab_indev_deps="CreateDIBSection"
3094 gdigrab_indev_extralibs="-lgdi32"
3095 gdigrab_indev_select="bmp_decoder"
3096 iec61883_indev_deps="libiec61883"
3097 jack_indev_deps="libjack"
3098 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3099 kmsgrab_indev_deps="libdrm"
3100 lavfi_indev_deps="avfilter"
3101 libcdio_indev_deps="libcdio"
3102 libdc1394_indev_deps="libdc1394"
3103 openal_indev_deps="openal"
3104 opengl_outdev_deps="opengl"
3105 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3106 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3107 pulse_indev_deps="libpulse"
3108 pulse_outdev_deps="libpulse"
3109 sdl2_outdev_deps="sdl2"
3110 sndio_indev_deps="sndio"
3111 sndio_outdev_deps="sndio"
3112 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3113 v4l2_indev_suggest="libv4l2"
3114 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3115 v4l2_outdev_suggest="libv4l2"
3116 vfwcap_indev_deps="vfw32 vfwcap_defines"
3117 xcbgrab_indev_deps="libxcb"
3118 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3119 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3120 xv_outdev_extralibs="-lXv -lX11 -lXext"
3121
3122 # protocols
3123 async_protocol_deps="threads"
3124 bluray_protocol_deps="libbluray"
3125 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3126 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3127 ffrtmpcrypt_protocol_select="tcp_protocol"
3128 ffrtmphttp_protocol_conflict="librtmp_protocol"
3129 ffrtmphttp_protocol_select="http_protocol"
3130 ftp_protocol_select="tcp_protocol"
3131 gopher_protocol_select="network"
3132 http_protocol_select="tcp_protocol"
3133 http_protocol_suggest="zlib"
3134 httpproxy_protocol_select="tcp_protocol"
3135 httpproxy_protocol_suggest="zlib"
3136 https_protocol_select="tls_protocol"
3137 https_protocol_suggest="zlib"
3138 icecast_protocol_select="http_protocol"
3139 librtmp_protocol_deps="librtmp"
3140 librtmpe_protocol_deps="librtmp"
3141 librtmps_protocol_deps="librtmp"
3142 librtmpt_protocol_deps="librtmp"
3143 librtmpte_protocol_deps="librtmp"
3144 libsmbclient_protocol_deps="libsmbclient gplv3"
3145 libssh_protocol_deps="libssh"
3146 mmsh_protocol_select="http_protocol"
3147 mmst_protocol_select="network"
3148 rtmp_protocol_conflict="librtmp_protocol"
3149 rtmp_protocol_select="tcp_protocol"
3150 rtmp_protocol_suggest="zlib"
3151 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3152 rtmpe_protocol_suggest="zlib"
3153 rtmps_protocol_conflict="librtmp_protocol"
3154 rtmps_protocol_select="tls_protocol"
3155 rtmps_protocol_suggest="zlib"
3156 rtmpt_protocol_select="ffrtmphttp_protocol"
3157 rtmpt_protocol_suggest="zlib"
3158 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3159 rtmpte_protocol_suggest="zlib"
3160 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3161 rtmpts_protocol_suggest="zlib"
3162 rtp_protocol_select="udp_protocol"
3163 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3164 sctp_protocol_select="network"
3165 srtp_protocol_select="rtp_protocol srtp"
3166 tcp_protocol_select="network"
3167 tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"
3168 tls_gnutls_protocol_deps="gnutls"
3169 tls_gnutls_protocol_select="tcp_protocol"
3170 tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"
3171 tls_openssl_protocol_deps="openssl"
3172 tls_openssl_protocol_select="tcp_protocol"
3173 tls_schannel_protocol_deps="schannel"
3174 tls_schannel_protocol_select="tcp_protocol"
3175 tls_securetransport_protocol_deps="securetransport"
3176 tls_securetransport_protocol_select="tcp_protocol"
3177 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3178 udp_protocol_select="network"
3179 udplite_protocol_select="network"
3180 unix_protocol_deps="sys_un_h"
3181 unix_protocol_select="network"
3182
3183 # filters
3184 afftfilt_filter_deps="avcodec"
3185 afftfilt_filter_select="fft"
3186 afir_filter_deps="avcodec"
3187 afir_filter_select="fft"
3188 amovie_filter_deps="avcodec avformat"
3189 aresample_filter_deps="swresample"
3190 ass_filter_deps="libass"
3191 atempo_filter_deps="avcodec"
3192 atempo_filter_select="rdft"
3193 azmq_filter_deps="libzmq"
3194 blackframe_filter_deps="gpl"
3195 boxblur_filter_deps="gpl"
3196 bs2b_filter_deps="libbs2b"
3197 colormatrix_filter_deps="gpl"
3198 coreimage_filter_deps="coreimage appkit"
3199 coreimage_filter_extralibs="-framework OpenGL"
3200 coreimagesrc_filter_deps="coreimage appkit"
3201 coreimagesrc_filter_extralibs="-framework OpenGL"
3202 cover_rect_filter_deps="avcodec avformat gpl"
3203 cropdetect_filter_deps="gpl"
3204 deinterlace_qsv_filter_deps="libmfx"
3205 deinterlace_vaapi_filter_deps="vaapi"
3206 delogo_filter_deps="gpl"
3207 deshake_filter_select="pixelutils"
3208 deshake_filter_suggest="opencl"
3209 drawtext_filter_deps="libfreetype"
3210 drawtext_filter_suggest="libfontconfig libfribidi"
3211 elbg_filter_deps="avcodec"
3212 eq_filter_deps="gpl"
3213 fftfilt_filter_deps="avcodec"
3214 fftfilt_filter_select="rdft"
3215 find_rect_filter_deps="avcodec avformat gpl"
3216 firequalizer_filter_deps="avcodec"
3217 firequalizer_filter_select="rdft"
3218 flite_filter_deps="libflite"
3219 framerate_filter_select="pixelutils"
3220 frei0r_filter_deps="frei0r libdl"
3221 frei0r_src_filter_deps="frei0r libdl"
3222 fspp_filter_deps="gpl"
3223 geq_filter_deps="gpl"
3224 histeq_filter_deps="gpl"
3225 hqdn3d_filter_deps="gpl"
3226 interlace_filter_deps="gpl"
3227 kerndeint_filter_deps="gpl"
3228 ladspa_filter_deps="ladspa libdl"
3229 mcdeint_filter_deps="avcodec gpl"
3230 movie_filter_deps="avcodec avformat"
3231 mpdecimate_filter_deps="gpl"
3232 mpdecimate_filter_select="pixelutils"
3233 mptestsrc_filter_deps="gpl"
3234 negate_filter_deps="lut_filter"
3235 nnedi_filter_deps="gpl"
3236 ocr_filter_deps="libtesseract"
3237 ocv_filter_deps="libopencv"
3238 owdenoise_filter_deps="gpl"
3239 pan_filter_deps="swresample"
3240 perspective_filter_deps="gpl"
3241 phase_filter_deps="gpl"
3242 pp7_filter_deps="gpl"
3243 pp_filter_deps="gpl postproc"
3244 pullup_filter_deps="gpl"
3245 removelogo_filter_deps="avcodec avformat swscale"
3246 repeatfields_filter_deps="gpl"
3247 resample_filter_deps="avresample"
3248 rubberband_filter_deps="librubberband"
3249 sab_filter_deps="gpl swscale"
3250 scale2ref_filter_deps="swscale"
3251 scale_filter_deps="swscale"
3252 scale_qsv_filter_deps="libmfx"
3253 select_filter_select="pixelutils"
3254 showcqt_filter_deps="avcodec avformat swscale"
3255 showcqt_filter_suggest="libfontconfig libfreetype"
3256 showcqt_filter_select="fft"
3257 showfreqs_filter_deps="avcodec"
3258 showfreqs_filter_select="fft"
3259 showspectrum_filter_deps="avcodec"
3260 showspectrum_filter_select="fft"
3261 showspectrumpic_filter_deps="avcodec"
3262 showspectrumpic_filter_select="fft"
3263 signature_filter_deps="gpl avcodec avformat"
3264 smartblur_filter_deps="gpl swscale"
3265 sofalizer_filter_deps="libmysofa avcodec"
3266 sofalizer_filter_select="fft"
3267 spectrumsynth_filter_deps="avcodec"
3268 spectrumsynth_filter_select="fft"
3269 spp_filter_deps="gpl avcodec"
3270 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3271 stereo3d_filter_deps="gpl"
3272 subtitles_filter_deps="avformat avcodec libass"
3273 super2xsai_filter_deps="gpl"
3274 pixfmts_super2xsai_test_deps="super2xsai_filter"
3275 tinterlace_filter_deps="gpl"
3276 tinterlace_merge_test_deps="tinterlace_filter"
3277 tinterlace_pad_test_deps="tinterlace_filter"
3278 tonemap_filter_deps="const_nan"
3279 uspp_filter_deps="gpl avcodec"
3280 unsharp_filter_suggest="opencl"
3281 vaguedenoiser_filter_deps="gpl"
3282 vidstabdetect_filter_deps="libvidstab"
3283 vidstabtransform_filter_deps="libvidstab"
3284 libvmaf_filter_deps="libvmaf"
3285 zmq_filter_deps="libzmq"
3286 zoompan_filter_deps="swscale"
3287 zscale_filter_deps="libzimg const_nan"
3288 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3289
3290 # examples
3291 avio_dir_cmd_deps="avformat avutil"
3292 avio_reading_deps="avformat avcodec avutil"
3293 decode_audio_example_deps="avcodec avutil"
3294 decode_video_example_deps="avcodec avutil"
3295 demuxing_decoding_example_deps="avcodec avformat avutil"
3296 encode_audio_example_deps="avcodec avutil"
3297 encode_video_example_deps="avcodec avutil"
3298 extract_mvs_example_deps="avcodec avformat avutil"
3299 filter_audio_example_deps="avfilter avutil"
3300 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3301 filtering_video_example_deps="avfilter avcodec avformat avutil"
3302 http_multiclient_example_deps="avformat avutil fork"
3303 hw_decode_example_deps="avcodec avformat avutil"
3304 metadata_example_deps="avformat avutil"
3305 muxing_example_deps="avcodec avformat avutil swscale"
3306 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3307 remuxing_example_deps="avcodec avformat avutil"
3308 resampling_audio_example_deps="avutil swresample"
3309 scaling_video_example_deps="avutil swscale"
3310 transcode_aac_example_deps="avcodec avformat swresample"
3311 transcoding_example_deps="avfilter avcodec avformat avutil"
3312
3313 # EXTRALIBS_LIST
3314 cpu_init_extralibs="pthreads_extralibs"
3315 cws2fws_extralibs="zlib_extralibs"
3316
3317 # libraries, in linking order
3318 avcodec_deps="avutil"
3319 avcodec_suggest="libm"
3320 avcodec_select="null_bsf"
3321 avdevice_deps="avformat avcodec avutil"
3322 avdevice_suggest="libm"
3323 avfilter_deps="avutil"
3324 avfilter_suggest="libm"
3325 avformat_deps="avcodec avutil"
3326 avformat_suggest="libm network zlib"
3327 avresample_deps="avutil"
3328 avresample_suggest="libm"
3329 avutil_suggest="clock_gettime libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3330 postproc_deps="avutil gpl"
3331 postproc_suggest="libm"
3332 swresample_deps="avutil"
3333 swresample_suggest="libm libsoxr"
3334 swscale_deps="avutil"
3335 swscale_suggest="libm"
3336
3337 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3338 avfilter_extralibs="pthreads_extralibs"
3339 avutil_extralibs="nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3340
3341 # programs
3342 ffmpeg_deps="avcodec avfilter avformat swresample"
3343 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3344                null_filter
3345                trim_filter"
3346 ffmpeg_suggest="ole32 psapi shell32"
3347 ffplay_deps="avcodec avformat swscale swresample sdl2"
3348 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3349 ffplay_suggest="shell32"
3350 ffprobe_deps="avcodec avformat"
3351 ffprobe_suggest="shell32"
3352 ffserver_deps="avformat fork sarestart"
3353 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3354
3355 # documentation
3356 podpages_deps="perl"
3357 manpages_deps="perl pod2man"
3358 htmlpages_deps="perl"
3359 htmlpages_deps_any="makeinfo_html texi2html"
3360 txtpages_deps="perl makeinfo"
3361 doc_deps_any="manpages htmlpages podpages txtpages"
3362
3363 # default parameters
3364
3365 logfile="ffbuild/config.log"
3366
3367 # installation paths
3368 prefix_default="/usr/local"
3369 bindir_default='${prefix}/bin'
3370 datadir_default='${prefix}/share/ffmpeg'
3371 docdir_default='${prefix}/share/doc/ffmpeg'
3372 incdir_default='${prefix}/include'
3373 libdir_default='${prefix}/lib'
3374 mandir_default='${prefix}/share/man'
3375
3376 # toolchain
3377 ar_default="ar"
3378 cc_default="gcc"
3379 cxx_default="g++"
3380 host_cc_default="gcc"
3381 doxygen_default="doxygen"
3382 install="install"
3383 ln_s_default="ln -s -f"
3384 nm_default="nm -g"
3385 pkg_config_default=pkg-config
3386 ranlib_default="ranlib"
3387 strip_default="strip"
3388 version_script='--version-script'
3389 x86asmexe_default="nasm"
3390 windres_default="windres"
3391 nvcc_default="nvcc"
3392 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3393 striptype="direct"
3394
3395 # OS
3396 target_os_default=$(tolower $(uname -s))
3397 host_os=$target_os_default
3398
3399 # machine
3400 if test "$target_os_default" = aix; then
3401     arch_default=$(uname -p)
3402     strip_default="strip -X32_64"
3403 else
3404     arch_default=$(uname -m)
3405 fi
3406 cpu="generic"
3407 intrinsics="none"
3408
3409 # configurable options
3410 enable $PROGRAM_LIST
3411 enable $DOCUMENT_LIST
3412 enable $EXAMPLE_LIST
3413 enable $(filter_out avresample $LIBRARY_LIST)
3414 enable stripping
3415
3416 enable asm
3417 enable debug
3418 enable doc
3419 enable faan faandct faanidct
3420 enable optimizations
3421 enable runtime_cpudetect
3422 enable safe_bitstream_reader
3423 enable static
3424 enable swscale_alpha
3425 enable valgrind_backtrace
3426
3427 sws_max_filter_size_default=256
3428 set_default sws_max_filter_size
3429
3430 # internal components are enabled by default
3431 enable $EXTRALIBS_LIST
3432
3433 # Avoid external, non-system, libraries getting enabled by dependency resolution
3434 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3435
3436 # build settings
3437 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3438 LIBPREF="lib"
3439 LIBSUF=".a"
3440 FULLNAME='$(NAME)$(BUILDSUF)'
3441 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3442 SLIBPREF="lib"
3443 SLIBSUF=".so"
3444 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3445 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3446 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3447 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3448 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3449 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3450 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3451
3452 asflags_filter=echo
3453 cflags_filter=echo
3454 ldflags_filter=echo
3455
3456 AS_C='-c'
3457 AS_O='-o $@'
3458 CC_C='-c'
3459 CC_E='-E -o $@'
3460 CC_O='-o $@'
3461 CXX_C='-c'
3462 CXX_O='-o $@'
3463 OBJCC_C='-c'
3464 OBJCC_E='-E -o $@'
3465 OBJCC_O='-o $@'
3466 X86ASM_O='-o $@'
3467 LD_O='-o $@'
3468 LD_LIB='-l%'
3469 LD_PATH='-L'
3470 HOSTCC_C='-c'
3471 HOSTCC_E='-E -o $@'
3472 HOSTCC_O='-o $@'
3473 HOSTLD_O='-o $@'
3474 NVCC_C='-c'
3475 NVCC_O='-o $@'
3476
3477 host_extralibs='-lm'
3478 host_cflags_filter=echo
3479 host_ldflags_filter=echo
3480
3481 target_path='$(CURDIR)'
3482
3483 # since the object filename is not given with the -MM flag, the compiler
3484 # is only able to print the basename, and we must add the path ourselves
3485 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3486 DEPFLAGS='-MM'
3487
3488 mkdir -p ffbuild
3489
3490 # find source path
3491 if test -f configure; then
3492     source_path=.
3493 else
3494     source_path=$(cd $(dirname "$0"); pwd)
3495     case "$source_path" in
3496         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3497     esac
3498     test -e "$source_path/config.h" &&
3499         die "Out of tree builds are impossible with config.h in source dir."
3500 fi
3501
3502 for v in "$@"; do
3503     r=${v#*=}
3504     l=${v%"$r"}
3505     r=$(sh_quote "$r")
3506     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3507 done
3508
3509 find_things(){
3510     thing=$1
3511     pattern=$2
3512     file=$source_path/$3
3513     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3514 }
3515
3516 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3517 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3518 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3519 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3520 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3521 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3522 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3523 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3524 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3525
3526 find_things_extern(){
3527     thing=$1
3528     pattern=$2
3529     file=$source_path/$3
3530     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3531 }
3532
3533 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3534 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3535
3536 AVCODEC_COMPONENTS_LIST="
3537     $BSF_LIST
3538     $DECODER_LIST
3539     $ENCODER_LIST
3540     $HWACCEL_LIST
3541     $PARSER_LIST
3542 "
3543
3544 AVDEVICE_COMPONENTS_LIST="
3545     $INDEV_LIST
3546     $OUTDEV_LIST
3547 "
3548
3549 AVFILTER_COMPONENTS_LIST="
3550     $FILTER_LIST
3551 "
3552
3553 AVFORMAT_COMPONENTS_LIST="
3554     $DEMUXER_LIST
3555     $MUXER_LIST
3556     $PROTOCOL_LIST
3557 "
3558
3559 ALL_COMPONENTS="
3560     $AVCODEC_COMPONENTS_LIST
3561     $AVDEVICE_COMPONENTS_LIST
3562     $AVFILTER_COMPONENTS_LIST
3563     $AVFORMAT_COMPONENTS_LIST
3564 "
3565
3566 for n in $COMPONENT_LIST; do
3567     v=$(toupper ${n%s})_LIST
3568     eval enable \$$v
3569     eval ${n}_if_any="\$$v"
3570 done
3571
3572 enable $ARCH_EXT_LIST
3573
3574 die_unknown(){
3575     echo "Unknown option \"$1\"."
3576     echo "See $0 --help for available options."
3577     exit 1
3578 }
3579
3580 print_in_columns() {
3581     cols=$(expr $ncols / 24)
3582     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3583 }
3584
3585 show_list() {
3586     suffix=_$1
3587     shift
3588     echo $* | sed s/$suffix//g | print_in_columns
3589     exit 0
3590 }
3591
3592 rand_list(){
3593     IFS=', '
3594     set -- $*
3595     unset IFS
3596     for thing; do
3597         comp=${thing%:*}
3598         prob=${thing#$comp}
3599         prob=${prob#:}
3600         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3601         echo "prob ${prob:-0.5}"
3602         printf '%s\n' $comp
3603     done
3604 }
3605
3606 do_random(){
3607     action=$1
3608     shift
3609     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3610     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3611 }
3612
3613 for opt do
3614     optval="${opt#*=}"
3615     case "$opt" in
3616         --extra-ldflags=*)
3617             add_ldflags $optval
3618         ;;
3619         --extra-ldexeflags=*)
3620             add_ldexeflags $optval
3621         ;;
3622         --extra-ldlibflags=*)
3623             add_ldlibflags $optval
3624         ;;
3625         --extra-libs=*)
3626             add_extralibs $optval
3627         ;;
3628         --disable-devices)
3629             disable $INDEV_LIST $OUTDEV_LIST
3630         ;;
3631         --enable-debug=*)
3632             debuglevel="$optval"
3633         ;;
3634         --disable-programs)
3635             disable $PROGRAM_LIST
3636         ;;
3637         --disable-everything)
3638             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3639         ;;
3640         --disable-all)
3641             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3642             disable $LIBRARY_LIST $PROGRAM_LIST doc
3643             enable avutil
3644         ;;
3645         --enable-random|--disable-random)
3646             action=${opt%%-random}
3647             do_random ${action#--} $COMPONENT_LIST
3648         ;;
3649         --enable-random=*|--disable-random=*)
3650             action=${opt%%-random=*}
3651             do_random ${action#--} $optval
3652         ;;
3653         --enable-sdl)
3654             enable sdl2
3655         ;;
3656         --enable-*=*|--disable-*=*)
3657             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3658             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3659             eval list=\$$(toupper $thing)_LIST
3660             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3661             list=$(filter "$name" $list)
3662             [ "$list" = "" ] && warn "Option $opt did not match anything"
3663             $action $list
3664         ;;
3665         --enable-yasm|--disable-yasm)
3666             warn "The ${opt} option is only provided for compatibility and will be\n"\
3667                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3668             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3669         ;;
3670         --yasmexe=*)
3671             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3672                  "removed in the future. Use --x86asmexe instead."
3673             x86asmexe="$optval"
3674         ;;
3675         --enable-?*|--disable-?*)
3676             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3677             if is_in $option $COMPONENT_LIST; then
3678                 test $action = disable && action=unset
3679                 eval $action \$$(toupper ${option%s})_LIST
3680             elif is_in $option $CMDLINE_SELECT; then
3681                 $action $option
3682             else
3683                 die_unknown $opt
3684             fi
3685         ;;
3686         --list-*)
3687             NAME="${opt#--list-}"
3688             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3689             NAME=${NAME%s}
3690             eval show_list $NAME \$$(toupper $NAME)_LIST
3691         ;;
3692         --help|-h) show_help
3693         ;;
3694         --quiet|-q) quiet=yes
3695         ;;
3696         --fatal-warnings) enable fatal_warnings
3697         ;;
3698         --libfuzzer=*)
3699             libfuzzer_path="$optval"
3700         ;;
3701         *)
3702             optname="${opt%%=*}"
3703             optname="${optname#--}"
3704             optname=$(echo "$optname" | sed 's/-/_/g')
3705             if is_in $optname $CMDLINE_SET; then
3706                 eval $optname='$optval'
3707             elif is_in $optname $CMDLINE_APPEND; then
3708                 append $optname "$optval"
3709             else
3710                 die_unknown $opt
3711             fi
3712         ;;
3713     esac
3714 done
3715
3716 for e in $env; do
3717     eval "export $e"
3718 done
3719
3720 if disabled autodetect; then
3721
3722     # Unless iconv is explicitely disabled by the user, we still want to probe
3723     # for the iconv from the libc.
3724     disabled iconv || enable libc_iconv
3725
3726     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3727     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3728 fi
3729 # Mark specifically enabled, but normally autodetected libraries as requested.
3730 for lib in $AUTODETECT_LIBS; do
3731     enabled $lib && request $lib
3732 done
3733 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3734 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3735 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3736
3737 disabled logging && logfile=/dev/null
3738
3739 die_license_disabled() {
3740     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3741 }
3742
3743 die_license_disabled_gpl() {
3744     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3745 }
3746
3747 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3748 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3749
3750 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3751 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3752
3753 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3754
3755 # Disable all the library-specific components if the library itself
3756 # is disabled, see AVCODEC_LIST and following _LIST variables.
3757
3758 disable_components(){
3759     disabled ${1} && disable $(
3760         eval components="\$$(toupper ${1})_COMPONENTS"
3761         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3762     )
3763 }
3764
3765 map 'disable_components $v' $LIBRARY_LIST
3766
3767 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3768 set >> $logfile
3769
3770 test -n "$valgrind" && toolchain="valgrind-memcheck"
3771
3772 enabled ossfuzz && {
3773     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3774     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3775 }
3776
3777 case "$toolchain" in
3778     *-asan)
3779         cc_default="${toolchain%-asan}"
3780         add_cflags  -fsanitize=address
3781         add_ldflags -fsanitize=address
3782     ;;
3783     *-msan)
3784         cc_default="${toolchain%-msan}"
3785         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3786         add_ldflags -fsanitize=memory
3787     ;;
3788     *-tsan)
3789         cc_default="${toolchain%-tsan}"
3790         add_cflags  -fsanitize=thread -fPIE
3791         add_ldflags -fsanitize=thread -pie
3792         case "$toolchain" in
3793             gcc-tsan)
3794                 add_cflags  -fPIC
3795                 add_ldflags -fPIC
3796                 ;;
3797         esac
3798     ;;
3799     *-usan)
3800         cc_default="${toolchain%-usan}"
3801         add_cflags  -fsanitize=undefined
3802         add_ldflags -fsanitize=undefined
3803     ;;
3804     valgrind-*)
3805         target_exec_default="valgrind"
3806         case "$toolchain" in
3807             valgrind-massif)
3808                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3809                 ;;
3810             valgrind-memcheck)
3811                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3812                 ;;
3813         esac
3814     ;;
3815     msvc)
3816         # Check whether the current MSVC version needs the C99 converter.
3817         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3818         # support enough of C99 to build ffmpeg. Default to the new
3819         # behaviour if the regexp was unable to match anything, since this
3820         # successfully parses the version number of existing supported
3821         # versions that require the converter (MSVC 2010 and 2012).
3822         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3823         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3824             cc_default="cl"
3825             cxx_default="cl"
3826         else
3827             cc_default="c99wrap cl"
3828             cxx_default="c99wrap cl"
3829         fi
3830         ld_default="$source_path/compat/windows/mslink"
3831         nm_default="dumpbin -symbols"
3832         ar_default="lib"
3833         case "$arch" in
3834         arm*)
3835             as_default="armasm"
3836             ;;
3837         esac
3838         target_os_default="win32"
3839         # Use a relative path for TMPDIR. This makes sure all the
3840         # ffconf temp files are written with a relative path, avoiding
3841         # issues with msys/win32 path conversion for MSVC parameters
3842         # such as -Fo<file> or -out:<file>.
3843         TMPDIR=.
3844     ;;
3845     icl)
3846         cc_default="icl"
3847         ld_default="xilink"
3848         nm_default="dumpbin -symbols"
3849         ar_default="xilib"
3850         target_os_default="win32"
3851         TMPDIR=.
3852     ;;
3853     gcov)
3854         add_cflags  -fprofile-arcs -ftest-coverage
3855         add_ldflags -fprofile-arcs -ftest-coverage
3856     ;;
3857     llvm-cov)
3858         add_cflags -fprofile-arcs -ftest-coverage
3859         add_ldflags --coverage
3860     ;;
3861     hardened)
3862         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3863         add_cflags   -fno-strict-overflow -fstack-protector-all
3864         add_ldflags  -Wl,-z,relro -Wl,-z,now
3865         add_cflags   -fPIE
3866         add_ldexeflags -fPIE -pie
3867     ;;
3868     ?*)
3869         die "Unknown toolchain $toolchain"
3870     ;;
3871 esac
3872
3873 test -n "$cross_prefix" && enable cross_compile
3874
3875 if enabled cross_compile; then
3876     test -n "$arch" && test -n "$target_os" ||
3877         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3878 fi
3879
3880 ar_default="${cross_prefix}${ar_default}"
3881 cc_default="${cross_prefix}${cc_default}"
3882 cxx_default="${cross_prefix}${cxx_default}"
3883 nm_default="${cross_prefix}${nm_default}"
3884 pkg_config_default="${cross_prefix}${pkg_config_default}"
3885 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3886     ranlib_default="${cross_prefix}${ranlib_default} -D"
3887 else
3888     ranlib_default="${cross_prefix}${ranlib_default}"
3889 fi
3890 strip_default="${cross_prefix}${strip_default}"
3891 windres_default="${cross_prefix}${windres_default}"
3892
3893 sysinclude_default="${sysroot}/usr/include"
3894
3895 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3896     target_exec target_os x86asmexe nvcc
3897 enabled cross_compile || host_cc_default=$cc
3898 set_default host_cc
3899
3900 pkg_config_fail_message=""
3901 if ! $pkg_config --version >/dev/null 2>&1; then
3902     warn "$pkg_config not found, library detection may fail."
3903     pkg_config=false
3904 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3905     pkg_config_fail_message="
3906 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3907 fi
3908
3909 if test $doxygen != $doxygen_default && \
3910   ! $doxygen --version >/dev/null 2>&1; then
3911     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3912 fi
3913
3914 exesuf() {
3915     case $1 in
3916         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3917     esac
3918 }
3919
3920 EXESUF=$(exesuf $target_os)
3921 HOSTEXESUF=$(exesuf $host_os)
3922
3923 # set temporary file name
3924 : ${TMPDIR:=$TEMPDIR}
3925 : ${TMPDIR:=$TMP}
3926 : ${TMPDIR:=/tmp}
3927
3928 if [ -n "$tempprefix" ] ; then
3929     mktemp(){
3930         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3931         echo "$tmpname"
3932         mkdir "$tmpname"
3933     }
3934 elif ! check_cmd mktemp -u XXXXXX; then
3935     # simple replacement for missing mktemp
3936     # NOT SAFE FOR GENERAL USE
3937     mktemp(){
3938         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3939         echo "$tmpname"
3940         mkdir "$tmpname"
3941     }
3942 fi
3943
3944 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3945     die "Unable to create temporary directory in $TMPDIR."
3946
3947 tmpfile(){
3948     tmp="${FFTMPDIR}/test"$2
3949     (set -C; exec > $tmp) 2> /dev/null ||
3950         die "Unable to create temporary file in $FFTMPDIR."
3951     eval $1=$tmp
3952 }
3953
3954 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3955 trap 'exit 2' INT
3956
3957 tmpfile TMPASM .asm
3958 tmpfile TMPC   .c
3959 tmpfile TMPCPP .cpp
3960 tmpfile TMPE   $EXESUF
3961 tmpfile TMPH   .h
3962 tmpfile TMPM   .m
3963 tmpfile TMPO   .o
3964 tmpfile TMPS   .S
3965 tmpfile TMPSH  .sh
3966 tmpfile TMPV   .ver
3967
3968 unset -f mktemp
3969
3970 chmod +x $TMPE
3971
3972 # make sure we can execute files in $TMPDIR
3973 cat > $TMPSH 2>> $logfile <<EOF
3974 #! /bin/sh
3975 EOF
3976 chmod +x $TMPSH >> $logfile 2>&1
3977 if ! $TMPSH >> $logfile 2>&1; then
3978     cat <<EOF
3979 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3980 variable to another directory and make sure that it is not mounted noexec.
3981 EOF
3982     die "Sanity test failed."
3983 fi
3984
3985 armasm_flags(){
3986     for flag; do
3987         case $flag in
3988             # Filter out MSVC cl.exe options from cflags that shouldn't
3989             # be passed to gas-preprocessor
3990             -M[TD]*)                                            ;;
3991             *)                  echo $flag                      ;;
3992         esac
3993    done
3994 }
3995
3996 ccc_flags(){
3997     for flag; do
3998         case $flag in
3999             -std=c99)           echo -c99                       ;;
4000             -mcpu=*)            echo -arch ${flag#*=}           ;;
4001             -mieee)             echo -ieee                      ;;
4002             -O*|-fast)          echo $flag                      ;;
4003             -fno-math-errno)    echo -assume nomath_errno       ;;
4004             -g)                 echo -g3                        ;;
4005             -Wall)              echo -msg_enable level2         ;;
4006             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
4007             -Wl,*)              echo $flag                      ;;
4008             -f*|-W*)                                            ;;
4009             *)                  echo $flag                      ;;
4010         esac
4011    done
4012 }
4013
4014 cparser_flags(){
4015     for flag; do
4016         case $flag in
4017             -Wno-switch)             echo -Wno-switch-enum ;;
4018             -Wno-format-zero-length) ;;
4019             -Wdisabled-optimization) ;;
4020             -Wno-pointer-sign)       echo -Wno-other ;;
4021             *)                       echo $flag ;;
4022         esac
4023     done
4024 }
4025
4026 msvc_common_flags(){
4027     for flag; do
4028         case $flag in
4029             # In addition to specifying certain flags under the compiler
4030             # specific filters, they must be specified here as well or else the
4031             # generic catch all at the bottom will print the original flag.
4032             -Wall)                ;;
4033             -Wextra)              ;;
4034             -std=c99)             ;;
4035             # Common flags
4036             -fomit-frame-pointer) ;;
4037             -g)                   echo -Z7 ;;
4038             -fno-math-errno)      ;;
4039             -fno-common)          ;;
4040             -fno-signed-zeros)    ;;
4041             -fPIC)                ;;
4042             -mthumb)              ;;
4043             -march=*)             ;;
4044             -lz)                  echo zlib.lib ;;
4045             -lx264)               echo libx264.lib ;;
4046             -lstdc++)             ;;
4047             -l*)                  echo ${flag#-l}.lib ;;
4048             -LARGEADDRESSAWARE)   echo $flag ;;
4049             -L*)                  echo -libpath:${flag#-L} ;;
4050             *)                    echo $flag ;;
4051         esac
4052     done
4053 }
4054
4055 msvc_flags(){
4056     msvc_common_flags "$@"
4057     for flag; do
4058         case $flag in
4059             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4060                                        -wd4554 ;;
4061             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4062                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4063                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4064                                        -wd4307 \
4065                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4066         esac
4067     done
4068 }
4069
4070 icl_flags(){
4071     msvc_common_flags "$@"
4072     for flag; do
4073         case $flag in
4074             # Despite what Intel's documentation says -Wall, which is supported
4075             # on Windows, does enable remarks so disable them here.
4076             -Wall)                echo $flag -Qdiag-disable:remark ;;
4077             -std=c99)             echo -Qstd=c99 ;;
4078             -flto)                echo -ipo ;;
4079         esac
4080     done
4081 }
4082
4083 icc_flags(){
4084     for flag; do
4085         case $flag in
4086             -flto)                echo -ipo ;;
4087             *)                    echo $flag ;;
4088         esac
4089     done
4090 }
4091
4092 pgi_flags(){
4093     for flag; do
4094         case $flag in
4095             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4096             -fomit-frame-pointer) echo -Mnoframe ;;
4097             -g)                   echo -gopt ;;
4098             *)                    echo $flag ;;
4099         esac
4100     done
4101 }
4102
4103 suncc_flags(){
4104     for flag; do
4105         case $flag in
4106             -march=*|-mcpu=*)
4107                 case "${flag#*=}" in
4108                     native)                   echo -xtarget=native       ;;
4109                     v9|niagara)               echo -xarch=sparc          ;;
4110                     ultrasparc)               echo -xarch=sparcvis       ;;
4111                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4112                     i586|pentium)             echo -xchip=pentium        ;;
4113                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4114                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4115                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4116                     pentium4*)          echo -xtarget=pentium4           ;;
4117                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4118                     *-sse3)             echo -xarch=sse3                 ;;
4119                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4120                     bonnell)                   echo -xarch=ssse3         ;;
4121                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4122                     westmere)                  echo -xtarget=westmere    ;;
4123                     silvermont)                echo -xarch=sse4_2        ;;
4124                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4125                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4126                                                echo -xarch=avx           ;;
4127                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4128                     btver1)                    echo -xarch=amdsse4a      ;;
4129                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4130                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4131                     k8|opteron|athlon64|athlon-fx)
4132                                                echo -xarch=sse2a         ;;
4133                     athlon*)                   echo -xarch=pentium_proa  ;;
4134                 esac
4135                 ;;
4136             -std=c99)             echo -xc99              ;;
4137             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4138             -fPIC)                echo -KPIC -xcode=pic32 ;;
4139             -W*,*)                echo $flag              ;;
4140             -f*-*|-W*|-mimpure-text)                      ;;
4141             -shared)              echo -G                 ;;
4142             *)                    echo $flag              ;;
4143         esac
4144     done
4145 }
4146
4147 tms470_flags(){
4148     for flag; do
4149         case $flag in
4150             -march=*|-mcpu=*)
4151                 case "${flag#*=}" in
4152                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4153                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4154                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4155                     armv6*|arm11*)          echo -mv=6   ;;
4156                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4157                                             echo -mv=5e  ;;
4158                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4159                 esac
4160                 ;;
4161             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4162             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4163             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4164             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4165             -msoft-float)   echo --float_support=vfplib       ;;
4166             -O[0-3]|-mf=*)  echo $flag                        ;;
4167             -g)             echo -g -mn                       ;;
4168             -pds=*)         echo $flag                        ;;
4169             -D*|-I*)        echo $flag                        ;;
4170             --gcc|--abi=*)  echo $flag                        ;;
4171             -me)            echo $flag                        ;;
4172         esac
4173     done
4174 }
4175
4176 probe_cc(){
4177     pfx=$1
4178     _cc=$2
4179     first=$3
4180
4181     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4182     unset _ld_o _ldflags _ld_lib _ld_path
4183     unset _depflags _DEPCMD _DEPFLAGS
4184     _flags_filter=echo
4185
4186     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4187         true # no-op to avoid reading stdin in following checks
4188     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4189         _type=llvm_gcc
4190         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4191         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4192         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4193         _cflags_speed='-O3'
4194         _cflags_size='-Os'
4195     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4196         _type=gcc
4197         gcc_version=$($_cc --version | head -n1)
4198         gcc_basever=$($_cc -dumpversion)
4199         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4200         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4201         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4202         case $gcc_basever in
4203             2) ;;
4204             2.*) ;;
4205             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4206         esac
4207         if [ "$first" = true ]; then
4208             case $gcc_basever in
4209                 4.2*)
4210                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4211             esac
4212         fi
4213         _cflags_speed='-O3'
4214         _cflags_size='-Os'
4215     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4216         _type=icc
4217         _ident=$($_cc --version | head -n1)
4218         _depflags='-MMD'
4219         _cflags_speed='-O3'
4220         _cflags_size='-Os'
4221         _cflags_noopt='-O1'
4222         _flags_filter=icc_flags
4223     elif $_cc -v 2>&1 | grep -q xlc; then
4224         _type=xlc
4225         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4226         _cflags_speed='-O5'
4227         _cflags_size='-O5 -qcompact'
4228     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4229         _type=ccc
4230         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4231         _DEPFLAGS='-M'
4232         _cflags_speed='-fast'
4233         _cflags_size='-O1'
4234         _flags_filter=ccc_flags
4235     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4236         test -d "$sysroot" || die "No valid sysroot specified."
4237         _type=armcc
4238         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4239         armcc_conf="$PWD/armcc.conf"
4240         $_cc --arm_linux_configure                 \
4241              --arm_linux_config_file="$armcc_conf" \
4242              --configure_sysroot="$sysroot"        \
4243              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4244              die "Error creating armcc configuration file."
4245         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4246         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4247         as_default="${cross_prefix}gcc"
4248         _depflags='-MMD'
4249         _cflags_speed='-O3'
4250         _cflags_size='-Os'
4251     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4252         _type=tms470
4253         _ident=$($_cc -version | head -n1 | tr -s ' ')
4254         _flags='--gcc --abi=eabi -me'
4255         _cc_e='-ppl -fe=$@'
4256         _cc_o='-fe=$@'
4257         _depflags='-ppa -ppd=$(@:.o=.d)'
4258         _cflags_speed='-O3 -mf=5'
4259         _cflags_size='-O3 -mf=2'
4260         _flags_filter=tms470_flags
4261     elif $_cc -v 2>&1 | grep -q clang; then
4262         _type=clang
4263         _ident=$($_cc --version 2>/dev/null | head -n1)
4264         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4265         _cflags_speed='-O3'
4266         _cflags_size='-Oz'
4267     elif $_cc -V 2>&1 | grep -q Sun; then
4268         _type=suncc
4269         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4270         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4271         _DEPFLAGS='-xM1 -xc99'
4272         _ldflags='-std=c99'
4273         _cflags_speed='-O5'
4274         _cflags_size='-O5 -xspace'
4275         _flags_filter=suncc_flags
4276     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4277         _type=pathscale
4278         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4279         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4280         _cflags_speed='-O2'
4281         _cflags_size='-Os'
4282         _flags_filter='filter_out -Wdisabled-optimization'
4283     elif $_cc -v 2>&1 | grep -q Open64; then
4284         _type=open64
4285         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4286         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4287         _cflags_speed='-O2'
4288         _cflags_size='-Os'
4289         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4290     elif $_cc -V 2>&1 | grep -q Portland; then
4291         _type=pgi
4292         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4293         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4294         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4295         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4296         _cflags_noopt="-O"
4297         _flags_filter=pgi_flags
4298     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4299         _type=armasm
4300         _ident=$($_cc | head -n1)
4301         # 4509: "This form of conditional instruction is deprecated"
4302         _flags="-nologo -ignore 4509"
4303         _flags_filter=armasm_flags
4304     elif $_cc 2>&1 | grep -q Intel; then
4305         _type=icl
4306         _ident=$($_cc 2>&1 | head -n1)
4307         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4308         # Not only is O3 broken on 13.x+ but it is slower on all previous
4309         # versions (tested) as well.
4310         _cflags_speed="-O2"
4311         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4312         if $_cc 2>&1 | grep -q Linker; then
4313             _ld_o='-out:$@'
4314         else
4315             _ld_o='-Fe$@'
4316         fi
4317         _cc_o='-Fo$@'
4318         _cc_e='-P'
4319         _flags_filter=icl_flags
4320         _ld_lib='lib%.a'
4321         _ld_path='-libpath:'
4322         # -Qdiag-error to make icl error when seeing certain unknown arguments
4323         _flags='-nologo -Qdiag-error:4044,10157'
4324         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4325         # with MSVC which enables it by default.
4326         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4327         disable stripping
4328     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4329         # lld can emulate multiple different linkers; in ms link.exe mode,
4330         # the -? parameter gives the help output which contains an identifyable
4331         # string, while it gives an error in other modes.
4332         _type=lld-link
4333         # The link.exe mode doesn't have a switch for getting the version,
4334         # but we can force it back to gnu mode and get the version from there.
4335         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4336         _ld_o='-out:$@'
4337         _flags_filter=msvc_flags
4338         _ld_lib='lib%.a'
4339         _ld_path='-libpath:'
4340     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4341         _type=msvc
4342         _ident=$($_cc 2>&1 | head -n1)
4343         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4344         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4345         _cflags_speed="-O2"
4346         _cflags_size="-O1"
4347         _cflags_noopt="-O1"
4348         if $_cc -nologo- 2>&1 | grep -q Linker; then
4349             _ld_o='-out:$@'
4350         else
4351             _ld_o='-Fe$@'
4352         fi
4353         _cc_o='-Fo$@'
4354         _cc_e='-P -Fi$@'
4355         _flags_filter=msvc_flags
4356         _ld_lib='lib%.a'
4357         _ld_path='-libpath:'
4358         _flags='-nologo'
4359         disable stripping
4360     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4361         _type=cparser
4362         _ident=$($_cc --version | head -n1)
4363         _depflags='-MMD'
4364         _cflags_speed='-O4'
4365         _cflags_size='-O2'
4366         _flags_filter=cparser_flags
4367     fi
4368
4369     eval ${pfx}_type=\$_type
4370     eval ${pfx}_ident=\$_ident
4371 }
4372
4373 set_ccvars(){
4374     eval ${1}_C=\${_cc_c-\${${1}_C}}
4375     eval ${1}_E=\${_cc_e-\${${1}_E}}
4376     eval ${1}_O=\${_cc_o-\${${1}_O}}
4377
4378     if [ -n "$_depflags" ]; then
4379         eval ${1}_DEPFLAGS=\$_depflags
4380     else
4381         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4382         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4383         eval DEP${1}FLAGS=\$_flags
4384     fi
4385 }
4386
4387 probe_cc cc "$cc" "true"
4388 cflags_filter=$_flags_filter
4389 cflags_speed=$_cflags_speed
4390 cflags_size=$_cflags_size
4391 cflags_noopt=$_cflags_noopt
4392 add_cflags $_flags $_cflags
4393 cc_ldflags=$_ldflags
4394 set_ccvars CC
4395 set_ccvars CXX
4396
4397 probe_cc hostcc "$host_cc"
4398 host_cflags_filter=$_flags_filter
4399 host_cflags_speed=$_cflags_speed
4400 add_host_cflags  $_flags $_cflags
4401 set_ccvars HOSTCC
4402
4403 test -n "$cc_type" && enable $cc_type ||
4404     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4405
4406 : ${as_default:=$cc}
4407 : ${objcc_default:=$cc}
4408 : ${dep_cc_default:=$cc}
4409 : ${ld_default:=$cc}
4410 : ${host_ld_default:=$host_cc}
4411 set_default ar as objcc dep_cc ld ln_s host_ld windres
4412
4413 probe_cc as "$as"
4414 asflags_filter=$_flags_filter
4415 add_asflags $_flags $_cflags
4416 set_ccvars AS
4417
4418 probe_cc objcc "$objcc"
4419 objcflags_filter=$_flags_filter
4420 add_objcflags $_flags $_cflags
4421 set_ccvars OBJC
4422
4423 probe_cc ld "$ld"
4424 ldflags_filter=$_flags_filter
4425 add_ldflags $_flags $_ldflags
4426 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4427 LD_O=${_ld_o-$LD_O}
4428 LD_LIB=${_ld_lib-$LD_LIB}
4429 LD_PATH=${_ld_path-$LD_PATH}
4430
4431 probe_cc hostld "$host_ld"
4432 host_ldflags_filter=$_flags_filter
4433 add_host_ldflags $_flags $_ldflags
4434 HOSTLD_O=${_ld_o-$HOSTLD_O}
4435
4436 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4437     probe_cc depcc "$dep_cc"
4438     CCDEP=${_DEPCMD:-$DEPCMD}
4439     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4440     DEPCCFLAGS=$_flags
4441 fi
4442
4443 if $ar 2>&1 | grep -q Microsoft; then
4444     arflags="-nologo"
4445     ar_o='-out:$@'
4446 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4447     arflags="rq"
4448     ar_o='$@'
4449 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4450     arflags='-Xany -r -c'
4451     ar_o='$@'
4452 elif $ar 2>&1 | grep -q "\[D\] "; then
4453     arflags="rcD"
4454     ar_o='$@'
4455 else
4456     arflags="rc"
4457     ar_o='$@'
4458 fi
4459
4460 add_cflags $extra_cflags
4461 add_cxxflags $extra_cxxflags
4462 add_objcflags $extra_objcflags
4463 add_asflags $extra_cflags
4464
4465 if test -n "$sysroot"; then
4466     case "$cc_type" in
4467         gcc|llvm_gcc|clang)
4468             add_cppflags --sysroot="$sysroot"
4469             add_ldflags --sysroot="$sysroot"
4470 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4471             add_cppflags -isysroot "$sysroot"
4472             add_ldflags -isysroot "$sysroot"
4473         ;;
4474         tms470)
4475             add_cppflags -I"$sysinclude"
4476             add_ldflags  --sysroot="$sysroot"
4477         ;;
4478     esac
4479 fi
4480
4481 if test "$cpu" = host; then
4482     enabled cross_compile &&
4483         die "--cpu=host makes no sense when cross-compiling."
4484
4485     case "$cc_type" in
4486         gcc|llvm_gcc)
4487             check_native(){
4488                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4489                 sed -n "/cc1.*$1=/{
4490                             s/.*$1=\\([^ ]*\\).*/\\1/
4491                             p
4492                             q
4493                         }" $TMPE
4494             }
4495             cpu=$(check_native -march || check_native -mcpu)
4496         ;;
4497         clang)
4498             check_native(){
4499                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4500                 sed -n "/cc1.*-target-cpu /{
4501                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4502                             p
4503                             q
4504                         }" $TMPE
4505             }
4506             cpu=$(check_native -march)
4507         ;;
4508     esac
4509
4510     test "${cpu:-host}" = host &&
4511         die "--cpu=host not supported with compiler $cc"
4512 fi
4513
4514 # Deal with common $arch aliases
4515 case "$arch" in
4516     aarch64|arm64)
4517         arch="aarch64"
4518     ;;
4519     arm*|iPad*|iPhone*)
4520         arch="arm"
4521     ;;
4522     mips*|IP*)
4523         case "$arch" in
4524         *el)
4525             add_cppflags -EL
4526             add_ldflags -EL
4527         ;;
4528         *eb)
4529             add_cppflags -EB
4530             add_ldflags -EB
4531         ;;
4532         esac
4533         arch="mips"
4534     ;;
4535     parisc*|hppa*)
4536         arch="parisc"
4537     ;;
4538     "Power Macintosh"|ppc*|powerpc*)
4539         arch="ppc"
4540     ;;
4541     s390|s390x)
4542         arch="s390"
4543     ;;
4544     sh4|sh)
4545         arch="sh4"
4546     ;;
4547     sun4*|sparc*)
4548         arch="sparc"
4549     ;;
4550     tilegx|tile-gx)
4551         arch="tilegx"
4552     ;;
4553     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4554         arch="x86"
4555     ;;
4556 esac
4557
4558 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4559 enable $arch
4560
4561 # Add processor-specific flags
4562 if enabled aarch64; then
4563
4564     case $cpu in
4565         armv*)
4566             cpuflags="-march=$cpu"
4567         ;;
4568         *)
4569             cpuflags="-mcpu=$cpu"
4570         ;;
4571     esac
4572
4573 elif enabled alpha; then
4574
4575     cpuflags="-mcpu=$cpu"
4576
4577 elif enabled arm; then
4578
4579     check_arm_arch() {
4580         check_cpp_condition stddef.h \
4581             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4582             $cpuflags
4583     }
4584
4585     probe_arm_arch() {
4586         if   check_arm_arch 4;        then echo armv4
4587         elif check_arm_arch 4T;       then echo armv4t
4588         elif check_arm_arch 5;        then echo armv5
4589         elif check_arm_arch 5E;       then echo armv5e
4590         elif check_arm_arch 5T;       then echo armv5t
4591         elif check_arm_arch 5TE;      then echo armv5te
4592         elif check_arm_arch 5TEJ;     then echo armv5te
4593         elif check_arm_arch 6;        then echo armv6
4594         elif check_arm_arch 6J;       then echo armv6j
4595         elif check_arm_arch 6K;       then echo armv6k
4596         elif check_arm_arch 6Z;       then echo armv6z
4597         elif check_arm_arch 6ZK;      then echo armv6zk
4598         elif check_arm_arch 6T2;      then echo armv6t2
4599         elif check_arm_arch 7;        then echo armv7
4600         elif check_arm_arch 7A  7_A;  then echo armv7-a
4601         elif check_arm_arch 7S;       then echo armv7-a
4602         elif check_arm_arch 7R  7_R;  then echo armv7-r
4603         elif check_arm_arch 7M  7_M;  then echo armv7-m
4604         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4605         elif check_arm_arch 8A  8_A;  then echo armv8-a
4606         fi
4607     }
4608
4609     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4610
4611     case $cpu in
4612         armv*)
4613             cpuflags="-march=$cpu"
4614             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4615         ;;
4616         *)
4617             cpuflags="-mcpu=$cpu"
4618             case $cpu in
4619                 cortex-a*)                               subarch=armv7a  ;;
4620                 cortex-r*)                               subarch=armv7r  ;;
4621                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4622                 arm11*)                                  subarch=armv6   ;;
4623                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4624                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4625                 *)                             subarch=$(probe_arm_arch) ;;
4626             esac
4627         ;;
4628     esac
4629
4630     case "$subarch" in
4631         armv5t*)    enable fast_clz                ;;
4632         armv[6-8]*)
4633             enable fast_clz
4634             disabled fast_unaligned || enable fast_unaligned
4635             ;;
4636     esac
4637
4638 elif enabled avr32; then
4639
4640     case $cpu in
4641         ap7[02]0[0-2])
4642             subarch="avr32_ap"
4643             cpuflags="-mpart=$cpu"
4644         ;;
4645         ap)
4646             subarch="avr32_ap"
4647             cpuflags="-march=$cpu"
4648         ;;
4649         uc3[ab]*)
4650             subarch="avr32_uc"
4651             cpuflags="-mcpu=$cpu"
4652         ;;
4653         uc)
4654             subarch="avr32_uc"
4655             cpuflags="-march=$cpu"
4656         ;;
4657     esac
4658
4659 elif enabled bfin; then
4660
4661     cpuflags="-mcpu=$cpu"
4662
4663 elif enabled mips; then
4664
4665     cpuflags="-march=$cpu"
4666
4667     if [ "$cpu" != "generic" ]; then
4668         disable mips32r2
4669         disable mips32r5
4670         disable mips64r2
4671         disable mips32r6
4672         disable mips64r6
4673         disable loongson2
4674         disable loongson3
4675
4676         case $cpu in
4677             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4678                 enable mips32r2
4679                 disable msa
4680             ;;
4681             p5600|i6400|p6600)
4682                 disable mipsdsp
4683                 disable mipsdspr2
4684             ;;
4685             loongson*)
4686                 enable loongson2
4687                 enable loongson3
4688                 enable local_aligned
4689                 enable simd_align_16
4690                 enable fast_64bit
4691                 enable fast_clz
4692                 enable fast_cmov
4693                 enable fast_unaligned
4694                 disable aligned_stack
4695                 disable mipsfpu
4696                 disable mipsdsp
4697                 disable mipsdspr2
4698                 case $cpu in
4699                     loongson3*)
4700                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4701                     ;;
4702                     loongson2e)
4703                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4704                     ;;
4705                     loongson2f)
4706                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4707                     ;;
4708                 esac
4709             ;;
4710             *)
4711                 # Unknown CPU. Disable everything.
4712                 warn "unknown CPU. Disabling all MIPS optimizations."
4713                 disable mipsfpu
4714                 disable mipsdsp
4715                 disable mipsdspr2
4716                 disable msa
4717                 disable mmi
4718             ;;
4719         esac
4720
4721         case $cpu in
4722             24kc)
4723                 disable mipsfpu
4724                 disable mipsdsp
4725                 disable mipsdspr2
4726             ;;
4727             24kf*)
4728                 disable mipsdsp
4729                 disable mipsdspr2
4730             ;;
4731             24kec|34kc|1004kc)
4732                 disable mipsfpu
4733                 disable mipsdspr2
4734             ;;
4735             24kef*|34kf*|1004kf*)
4736                 disable mipsdspr2
4737             ;;
4738             74kc)
4739                 disable mipsfpu
4740             ;;
4741             p5600)
4742                 enable mips32r5
4743                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4744             ;;
4745             i6400)
4746                 enable mips64r6
4747                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4748             ;;
4749             p6600)
4750                 enable mips64r6
4751                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4752             ;;
4753         esac
4754     else
4755         # We do not disable anything. Is up to the user to disable the unwanted features.
4756         warn 'generic cpu selected'
4757     fi
4758
4759 elif enabled ppc; then
4760
4761     disable ldbrx
4762
4763     case $(tolower $cpu) in
4764         601|ppc601|powerpc601)
4765             cpuflags="-mcpu=601"
4766             disable altivec
4767         ;;
4768         603*|ppc603*|powerpc603*)
4769             cpuflags="-mcpu=603"
4770             disable altivec
4771         ;;
4772         604*|ppc604*|powerpc604*)
4773             cpuflags="-mcpu=604"
4774             disable altivec
4775         ;;
4776         g3|75*|ppc75*|powerpc75*)
4777             cpuflags="-mcpu=750"
4778             disable altivec
4779         ;;
4780         g4|745*|ppc745*|powerpc745*)
4781             cpuflags="-mcpu=7450"
4782             disable vsx
4783         ;;
4784         74*|ppc74*|powerpc74*)
4785             cpuflags="-mcpu=7400"
4786             disable vsx
4787         ;;
4788         g5|970|ppc970|powerpc970)
4789             cpuflags="-mcpu=970"
4790             disable vsx
4791         ;;
4792         power[3-6]*)
4793             cpuflags="-mcpu=$cpu"
4794             disable vsx
4795         ;;
4796         power[7-8]*)
4797             cpuflags="-mcpu=$cpu"
4798         ;;
4799         cell)
4800             cpuflags="-mcpu=cell"
4801             enable ldbrx
4802             disable vsx
4803         ;;
4804         e500mc)
4805             cpuflags="-mcpu=e500mc"
4806             disable altivec
4807         ;;
4808         e500v2)
4809             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4810             disable altivec
4811             disable dcbzl
4812         ;;
4813         e500)
4814             cpuflags="-mcpu=8540 -mhard-float"
4815             disable altivec
4816             disable dcbzl
4817         ;;
4818     esac
4819
4820 elif enabled sparc; then
4821
4822     case $cpu in
4823         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4824             cpuflags="-mcpu=$cpu"
4825         ;;
4826         ultrasparc*|niagara[234])
4827             cpuflags="-mcpu=$cpu"
4828         ;;
4829     esac
4830
4831 elif enabled x86; then
4832
4833     case $cpu in
4834         i[345]86|pentium)
4835             cpuflags="-march=$cpu"
4836             disable i686
4837             disable mmx
4838         ;;
4839         # targets that do NOT support nopl and conditional mov (cmov)
4840         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4841             cpuflags="-march=$cpu"
4842             disable i686
4843         ;;
4844         # targets that do support nopl and conditional mov (cmov)
4845         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4846         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4847         |amdfam10|barcelona|b[dt]ver*|znver*)
4848             cpuflags="-march=$cpu"
4849             enable i686
4850             enable fast_cmov
4851         ;;
4852         # targets that do support conditional mov but on which it's slow
4853         pentium4|pentium4m|prescott|nocona)
4854             cpuflags="-march=$cpu"
4855             enable i686
4856             disable fast_cmov
4857         ;;
4858     esac
4859
4860 fi
4861
4862 if [ "$cpu" != generic ]; then
4863     add_cflags  $cpuflags
4864     add_asflags $cpuflags
4865     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4866 fi
4867
4868 # compiler sanity check
4869 check_exec <<EOF
4870 int main(void){ return 0; }
4871 EOF
4872 if test "$?" != 0; then
4873     echo "$cc is unable to create an executable file."
4874     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4875         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4876         echo "Only do this if you know what cross compiling means."
4877     fi
4878     die "C compiler test failed."
4879 fi
4880
4881 add_cppflags -D_ISOC99_SOURCE
4882 add_cxxflags -D__STDC_CONSTANT_MACROS
4883 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4884
4885 # some compilers silently accept -std=c11, so we also need to check that the
4886 # version macro is defined properly
4887 test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
4888     add_cflags -std=c11 ||
4889     check_cflags -std=c99
4890
4891 check_cppflags -D_FILE_OFFSET_BITS=64
4892 check_cppflags -D_LARGEFILE_SOURCE
4893
4894 add_host_cppflags -D_ISOC99_SOURCE
4895 check_host_cflags -std=c99
4896 check_host_cflags -Wall
4897 check_host_cflags $host_cflags_speed
4898
4899 check_64bit(){
4900     arch32=$1
4901     arch64=$2
4902     expr=$3
4903     check_code cc "" "int test[2*($expr) - 1]" &&
4904         subarch=$arch64 || subarch=$arch32
4905 }
4906
4907 case "$arch" in
4908     aarch64|alpha|ia64)
4909         spic=$shared
4910     ;;
4911     mips)
4912         check_64bit mips mips64 '_MIPS_SIM > 1'
4913         spic=$shared
4914     ;;
4915     parisc)
4916         check_64bit parisc parisc64 'sizeof(void *) > 4'
4917         spic=$shared
4918     ;;
4919     ppc)
4920         check_64bit ppc ppc64 'sizeof(void *) > 4'
4921         spic=$shared