avcodec/nvenc: include nvEncodeAPI v7 SDK header
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
112   --enable-raise-major     increase major version numbers in sonames [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
189 External library support:
190
191   Using any of the following switches will allow FFmpeg to link to the
192   corresponding external library. All the components depending on that library
193   will become enabled, if all their other dependencies are met and they are not
194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
195   libwavpack and allow the libwavpack encoder to be built, unless it is
196   specifically disabled with --disable-encoder=libwavpack.
197
198   Note that only the system libraries are auto-detected. All the other external
199   libraries must be explicitly enabled.
200
201   Also note that the following help text describes the purpose of the libraries
202   themselves, not all their features will necessarily be usable by FFmpeg.
203
204   --enable-avisynth        enable reading of AviSynth script files [no]
205   --disable-bzlib          disable bzlib [autodetect]
206   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
207   --enable-frei0r          enable frei0r video filtering [no]
208   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
209                            if openssl, librtmp or gmp is not used [no]
210   --enable-gmp             enable gmp, needed for rtmp(t)e support
211                            if openssl or librtmp is not used [no]
212   --enable-gnutls          enable gnutls, needed for https support
213                            if openssl is not used [no]
214   --disable-iconv          disable iconv [autodetect]
215   --enable-jni             enable JNI support [no]
216   --enable-ladspa          enable LADSPA audio filtering [no]
217   --enable-libass          enable libass subtitles rendering,
218                            needed for subtitles and ass filter [no]
219   --enable-libbluray       enable BluRay reading using libbluray [no]
220   --enable-libbs2b         enable bs2b DSP library [no]
221   --enable-libcaca         enable textual display using libcaca [no]
222   --enable-libcelt         enable CELT decoding via libcelt [no]
223   --enable-libcdio         enable audio CD grabbing with libcdio [no]
224   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
225                            and libraw1394 [no]
226   --enable-libebur128      enable libebur128 for EBU R128 measurement,
227                            needed for loudnorm filter [no]
228   --enable-libfaac         enable AAC encoding via libfaac [no]
229   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
230   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
231   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
232   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
233   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
234   --enable-libgme          enable Game Music Emu via libgme [no]
235   --enable-libgsm          enable GSM de/encoding via libgsm [no]
236   --enable-libiec61883     enable iec61883 via libiec61883 [no]
237   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
238   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
239   --enable-libmodplug      enable ModPlug via libmodplug [no]
240   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
241   --enable-libnut          enable NUT (de)muxing via libnut,
242                            native (de)muxer exists [no]
243   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
244   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
245   --enable-libopencv       enable video filtering via libopencv [no]
246   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
247   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
248   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
249   --enable-libopus         enable Opus de/encoding via libopus [no]
250   --enable-libpulse        enable Pulseaudio input via libpulse [no]
251   --enable-librubberband   enable rubberband needed for rubberband filter [no]
252   --enable-librtmp         enable RTMP[E] support via librtmp [no]
253   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
254   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
255   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
256   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
257   --enable-libsoxr         enable Include libsoxr resampling [no]
258   --enable-libspeex        enable Speex de/encoding via libspeex [no]
259   --enable-libssh          enable SFTP protocol via libssh [no]
260   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
261   --enable-libtheora       enable Theora encoding via libtheora [no]
262   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
263   --enable-libv4l2         enable libv4l2/v4l-utils [no]
264   --enable-libvidstab      enable video stabilization using vid.stab [no]
265   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
266   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
267                            native implementation exists [no]
268   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
269   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
270   --enable-libwebp         enable WebP encoding via libwebp [no]
271   --enable-libx264         enable H.264 encoding via x264 [no]
272   --enable-libx265         enable HEVC encoding via x265 [no]
273   --enable-libxavs         enable AVS encoding via xavs [no]
274   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
275   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
276   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
277   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
278   --enable-libxvid         enable Xvid encoding via xvidcore,
279                            native MPEG-4/Xvid encoder exists [no]
280   --enable-libzimg         enable z.lib, needed for zscale filter [no]
281   --enable-libzmq          enable message passing via libzmq [no]
282   --enable-libzvbi         enable teletext support via libzvbi [no]
283   --disable-lzma           disable lzma [autodetect]
284   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
285   --enable-mediacodec      enable Android MediaCodec support [no]
286   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
287   --enable-openal          enable OpenAL 1.1 capture support [no]
288   --enable-opencl          enable OpenCL code
289   --enable-opengl          enable OpenGL rendering [no]
290   --enable-openssl         enable openssl, needed for https support
291                            if gnutls is not used [no]
292   --disable-schannel       disable SChannel SSP, needed for TLS support on
293                            Windows if openssl and gnutls are not used [autodetect]
294   --disable-sdl            disable sdl [autodetect]
295   --disable-securetransport disable Secure Transport, needed for TLS support
296                            on OSX if openssl and gnutls are not used [autodetect]
297   --enable-x11grab         enable X11 grabbing (legacy) [no]
298   --disable-xlib           disable xlib [autodetect]
299   --disable-zlib           disable zlib [autodetect]
300
301   The following libraries provide various hardware acceleration features:
302   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
303   --enable-cuda            enable dynamically linked Nvidia CUDA code [no]
304   --enable-cuvid           enable Nvidia CUVID support [autodetect]
305   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
306   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
307   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
308   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
309   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
310   --disable-nvenc          disable Nvidia video encoding code [autodetect]
311   --enable-omx             enable OpenMAX IL code [no]
312   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
313   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
314   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
315   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
316   --disable-videotoolbox   disable VideoToolbox code [autodetect]
317
318 Toolchain options:
319   --arch=ARCH              select architecture [$arch]
320   --cpu=CPU                select the minimum required CPU (affects
321                            instruction selection, may crash on older CPUs)
322   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
323   --progs-suffix=SUFFIX    program name suffix []
324   --enable-cross-compile   assume a cross-compiler is used
325   --sysroot=PATH           root of cross-build tree
326   --sysinclude=PATH        location of cross-build system headers
327   --target-os=OS           compiler targets OS [$target_os]
328   --target-exec=CMD        command to run executables on target
329   --target-path=DIR        path to view of build directory on target
330   --target-samples=DIR     path to samples directory on target
331   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
332   --toolchain=NAME         set tool defaults according to NAME
333   --nm=NM                  use nm tool NM [$nm_default]
334   --ar=AR                  use archive tool AR [$ar_default]
335   --as=AS                  use assembler AS [$as_default]
336   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
337   --strip=STRIP            use strip tool STRIP [$strip_default]
338   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
339   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
340   --cc=CC                  use C compiler CC [$cc_default]
341   --cxx=CXX                use C compiler CXX [$cxx_default]
342   --objcc=OCC              use ObjC compiler OCC [$cc_default]
343   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
344   --ld=LD                  use linker LD [$ld_default]
345   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
346   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
347   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
348   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
349   --host-cc=HOSTCC         use host C compiler HOSTCC
350   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
351   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
352   --host-ld=HOSTLD         use host linker HOSTLD
353   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
354   --host-libs=HLIBS        use libs HLIBS when linking for host
355   --host-os=OS             compiler host OS [$target_os]
356   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
357   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
358   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
359   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
360   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
361   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
362   --extra-libs=ELIBS       add ELIBS [$ELIBS]
363   --extra-version=STRING   version string suffix []
364   --optflags=OPTFLAGS      override optimization-related compiler flags
365   --build-suffix=SUFFIX    library name suffix []
366   --enable-pic             build position-independent code
367   --enable-thumb           compile for Thumb instruction set
368   --enable-lto             use link-time optimization
369   --env="ENV=override"     override the environment variables
370
371 Advanced options (experts only):
372   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
373   --custom-allocator=NAME  use a supported custom allocator
374   --disable-symver         disable symbol versioning
375   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
376   --disable-safe-bitstream-reader
377                            disable buffer boundary checking in bitreaders
378                            (faster, but may crash)
379   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
380   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
381
382 Optimization options (experts only):
383   --disable-asm            disable all assembly optimizations
384   --disable-altivec        disable AltiVec optimizations
385   --disable-vsx            disable VSX optimizations
386   --disable-power8         disable POWER8 optimizations
387   --disable-amd3dnow       disable 3DNow! optimizations
388   --disable-amd3dnowext    disable 3DNow! extended optimizations
389   --disable-mmx            disable MMX optimizations
390   --disable-mmxext         disable MMXEXT optimizations
391   --disable-sse            disable SSE optimizations
392   --disable-sse2           disable SSE2 optimizations
393   --disable-sse3           disable SSE3 optimizations
394   --disable-ssse3          disable SSSE3 optimizations
395   --disable-sse4           disable SSE4 optimizations
396   --disable-sse42          disable SSE4.2 optimizations
397   --disable-avx            disable AVX optimizations
398   --disable-xop            disable XOP optimizations
399   --disable-fma3           disable FMA3 optimizations
400   --disable-fma4           disable FMA4 optimizations
401   --disable-avx2           disable AVX2 optimizations
402   --disable-aesni          disable AESNI optimizations
403   --disable-armv5te        disable armv5te optimizations
404   --disable-armv6          disable armv6 optimizations
405   --disable-armv6t2        disable armv6t2 optimizations
406   --disable-vfp            disable VFP optimizations
407   --disable-neon           disable NEON optimizations
408   --disable-inline-asm     disable use of inline assembly
409   --disable-yasm           disable use of nasm/yasm assembly
410   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
411   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
412   --disable-msa            disable MSA optimizations
413   --disable-mipsfpu        disable floating point MIPS optimizations
414   --disable-mmi            disable Loongson SIMD optimizations
415   --disable-fast-unaligned consider unaligned accesses slow
416
417 Developer options (useful when working on FFmpeg itself):
418   --disable-debug          disable debugging symbols
419   --enable-debug=LEVEL     set the debug level [$debuglevel]
420   --disable-optimizations  disable compiler optimizations
421   --enable-extra-warnings  enable more compiler warnings
422   --disable-stripping      disable stripping of executables and shared libraries
423   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
424                            2 causes a slowdown at runtime.
425   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
426   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
427                            leaks and errors, using the specified valgrind binary.
428                            Cannot be combined with --target-exec
429   --enable-ftrapv          Trap arithmetic overflows
430   --samples=PATH           location of test samples for FATE, if not set use
431                            \$FATE_SAMPLES at make invocation time.
432   --enable-neon-clobber-test check NEON registers for clobbering (should be
433                            used only for debugging purposes)
434   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
435                            should be used only for debugging purposes)
436   --enable-random          randomly enable/disable components
437   --disable-random
438   --enable-random=LIST     randomly enable/disable specific components or
439   --disable-random=LIST    component groups. LIST is a comma-separated list
440                            of NAME[:PROB] entries where NAME is a component
441                            (group) and PROB the probability associated with
442                            NAME (default 0.5).
443   --random-seed=VALUE      seed value for --enable/disable-random
444   --disable-valgrind-backtrace do not print a backtrace under Valgrind
445                            (only applies to --disable-optimizations builds)
446
447 NOTE: Object files are built at the place where configure is launched.
448 EOF
449   exit 0
450 }
451
452 quotes='""'
453 if test -t 1 && which tput >/dev/null 2>&1; then
454     ncolors=$(tput colors)
455     if test -n "$ncolors" && test $ncolors -ge 8; then
456         bold_color=$(tput bold)
457         warn_color=$(tput setaf 3)
458         error_color=$(tput setaf 1)
459         reset_color=$(tput sgr0)
460     fi
461     # 72 used instead of 80 since that's the default of pr
462     ncols=$(tput cols)
463 fi
464 : ${ncols:=72}
465
466 log(){
467     echo "$@" >> $logfile
468 }
469
470 log_file(){
471     log BEGIN $1
472     pr -n -t $1 >> $logfile
473     log END $1
474 }
475
476 warn(){
477     log "WARNING: $*"
478     WARNINGS="${WARNINGS}WARNING: $*\n"
479 }
480
481 die(){
482     log "$@"
483     echo "$error_color$bold_color$@$reset_color"
484     cat <<EOF
485
486 If you think configure made a mistake, make sure you are using the latest
487 version from Git.  If the latest version fails, report the problem to the
488 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
489 EOF
490     if disabled logging; then
491         cat <<EOF
492 Rerun configure with logging enabled (do not use --disable-logging), and
493 include the log this produces with your report.
494 EOF
495     else
496         cat <<EOF
497 Include the log file "$logfile" produced by configure as this will help
498 solve the problem.
499 EOF
500     fi
501     exit 1
502 }
503
504 # Avoid locale weirdness, besides we really just want to translate ASCII.
505 toupper(){
506     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
507 }
508
509 tolower(){
510     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
511 }
512
513 c_escape(){
514     echo "$*" | sed 's/["\\]/\\\0/g'
515 }
516
517 sh_quote(){
518     v=$(echo "$1" | sed "s/'/'\\\\''/g")
519     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
520     echo "$v"
521 }
522
523 cleanws(){
524     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
525 }
526
527 filter(){
528     pat=$1
529     shift
530     for v; do
531         eval "case $v in $pat) echo $v ;; esac"
532     done
533 }
534
535 filter_out(){
536     pat=$1
537     shift
538     for v; do
539         eval "case $v in $pat) ;; *) echo $v ;; esac"
540     done
541 }
542
543 map(){
544     m=$1
545     shift
546     for v; do eval $m; done
547 }
548
549 add_suffix(){
550     suffix=$1
551     shift
552     for v; do echo ${v}${suffix}; done
553 }
554
555 set_all(){
556     value=$1
557     shift
558     for var in $*; do
559         eval $var=$value
560     done
561 }
562
563 set_weak(){
564     value=$1
565     shift
566     for var; do
567         eval : \${$var:=$value}
568     done
569 }
570
571 sanitize_var_name(){
572     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
573 }
574
575 set_safe(){
576     var=$1
577     shift
578     eval $(sanitize_var_name "$var")='$*'
579 }
580
581 get_safe(){
582     eval echo \$$(sanitize_var_name "$1")
583 }
584
585 pushvar(){
586     for pvar in $*; do
587         eval level=\${${pvar}_level:=0}
588         eval ${pvar}_${level}="\$$pvar"
589         eval ${pvar}_level=$(($level+1))
590     done
591 }
592
593 popvar(){
594     for pvar in $*; do
595         eval level=\${${pvar}_level:-0}
596         test $level = 0 && continue
597         eval level=$(($level-1))
598         eval $pvar="\${${pvar}_${level}}"
599         eval ${pvar}_level=$level
600         eval unset ${pvar}_${level}
601     done
602 }
603
604 enable(){
605     set_all yes $*
606 }
607
608 disable(){
609     set_all no $*
610 }
611
612 enable_weak(){
613     set_weak yes $*
614 }
615
616 disable_weak(){
617     set_weak no $*
618 }
619
620 enable_safe(){
621     for var; do
622         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
623     done
624 }
625
626 disable_safe(){
627     for var; do
628         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
629     done
630 }
631
632 do_enable_deep(){
633     for var; do
634         enabled $var && continue
635         eval sel="\$${var}_select"
636         eval sgs="\$${var}_suggest"
637         pushvar var sgs
638         enable_deep $sel
639         popvar sgs
640         enable_deep_weak $sgs
641         popvar var
642     done
643 }
644
645 enable_deep(){
646     do_enable_deep $*
647     enable $*
648 }
649
650 enable_deep_weak(){
651     for var; do
652         disabled $var && continue
653         pushvar var
654         do_enable_deep $var
655         popvar var
656         enable_weak $var
657     done
658 }
659
660 enabled(){
661     test "${1#!}" = "$1" && op='=' || op=!=
662     eval test "x\$${1#!}" $op "xyes"
663 }
664
665 disabled(){
666     test "${1#!}" = "$1" && op='=' || op=!=
667     eval test "x\$${1#!}" $op "xno"
668 }
669
670 enabled_all(){
671     for opt; do
672         enabled $opt || return 1
673     done
674 }
675
676 disabled_all(){
677     for opt; do
678         disabled $opt || return 1
679     done
680 }
681
682 enabled_any(){
683     for opt; do
684         enabled $opt && return 0
685     done
686 }
687
688 disabled_any(){
689     for opt; do
690         disabled $opt && return 0
691     done
692     return 1
693 }
694
695 set_default(){
696     for opt; do
697         eval : \${$opt:=\$${opt}_default}
698     done
699 }
700
701 is_in(){
702     value=$1
703     shift
704     for var in $*; do
705         [ $var = $value ] && return 0
706     done
707     return 1
708 }
709
710 do_check_deps(){
711     for cfg; do
712         cfg="${cfg#!}"
713         enabled ${cfg}_checking && die "Circular dependency for $cfg."
714         disabled ${cfg}_checking && continue
715         enable ${cfg}_checking
716         append allopts $cfg
717
718         eval dep_all="\$${cfg}_deps"
719         eval dep_any="\$${cfg}_deps_any"
720         eval dep_sel="\$${cfg}_select"
721         eval dep_sgs="\$${cfg}_suggest"
722         eval dep_ifa="\$${cfg}_if"
723         eval dep_ifn="\$${cfg}_if_any"
724
725         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
726         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
727         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
728
729         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
730         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
731         enabled_all  $dep_all || disable $cfg
732         enabled_any  $dep_any || disable $cfg
733         disabled_any $dep_sel && disable $cfg
734
735         if enabled $cfg; then
736             enable_deep $dep_sel
737             enable_deep_weak $dep_sgs
738         fi
739
740         disable ${cfg}_checking
741     done
742 }
743
744 check_deps(){
745     unset allopts
746
747     do_check_deps "$@"
748
749     for cfg in $allopts; do
750         enabled $cfg || continue
751         eval dep_extralibs="\$${cfg}_extralibs"
752         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
753     done
754 }
755
756 print_config(){
757     pfx=$1
758     files=$2
759     shift 2
760     map 'eval echo "$v \${$v:-no}"' "$@" |
761     awk "BEGIN { split(\"$files\", files) }
762         {
763             c = \"$pfx\" toupper(\$1);
764             v = \$2;
765             sub(/yes/, 1, v);
766             sub(/no/,  0, v);
767             for (f in files) {
768                 file = files[f];
769                 if (file ~ /\\.h\$/) {
770                     printf(\"#define %s %d\\n\", c, v) >>file;
771                 } else if (file ~ /\\.asm\$/) {
772                     printf(\"%%define %s %d\\n\", c, v) >>file;
773                 } else if (file ~ /\\.mak\$/) {
774                     n = -v ? \"\" : \"!\";
775                     printf(\"%s%s=yes\\n\", n, c) >>file;
776                 } else if (file ~ /\\.texi\$/) {
777                     pre = -v ? \"\" : \"@c \";
778                     yesno = \$2;
779                     c2 = tolower(c);
780                     gsub(/_/, \"-\", c2);
781                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
782                 }
783             }
784         }"
785 }
786
787 print_enabled(){
788     suf=$1
789     shift
790     for v; do
791         enabled $v && printf "%s\n" ${v%$suf}
792     done
793 }
794
795 append(){
796     var=$1
797     shift
798     eval "$var=\"\$$var $*\""
799 }
800
801 prepend(){
802     var=$1
803     shift
804     eval "$var=\"$* \$$var\""
805 }
806
807 unique(){
808     var=$1
809     uniq_list=""
810     for tok in $(eval echo \$$var); do
811         uniq_list="$(filter_out $tok $uniq_list) $tok"
812     done
813     eval "$var=\"${uniq_list}\""
814 }
815
816 add_cppflags(){
817     append CPPFLAGS "$@"
818 }
819
820 add_cflags(){
821     append CFLAGS $($cflags_filter "$@")
822 }
823
824 add_cxxflags(){
825     append CXXFLAGS $($cflags_filter "$@")
826 }
827
828 add_asflags(){
829     append ASFLAGS $($asflags_filter "$@")
830 }
831
832 add_objcflags(){
833     append OBJCFLAGS $($objcflags_filter "$@")
834 }
835
836 add_ldflags(){
837     append LDFLAGS $($ldflags_filter "$@")
838 }
839
840 add_ldexeflags(){
841     append LDEXEFLAGS $($ldflags_filter "$@")
842 }
843
844 add_ldlibflags(){
845     append LDLIBFLAGS $($ldflags_filter "$@")
846 }
847
848 add_stripflags(){
849     append ASMSTRIPFLAGS "$@"
850 }
851
852 add_extralibs(){
853     prepend extralibs $($ldflags_filter "$@")
854 }
855
856 add_host_cppflags(){
857     append host_cppflags "$@"
858 }
859
860 add_host_cflags(){
861     append host_cflags $($host_cflags_filter "$@")
862 }
863
864 add_host_ldflags(){
865     append host_ldflags $($host_ldflags_filter "$@")
866 }
867
868 add_compat(){
869     append compat_objs $1
870     shift
871     map 'add_cppflags -D$v' "$@"
872 }
873
874 check_cmd(){
875     log "$@"
876     "$@" >> $logfile 2>&1
877 }
878
879 check_stat(){
880     log check_stat "$@"
881     stat "$1" >> $logfile 2>&1
882 }
883
884 cc_o(){
885     eval printf '%s\\n' $CC_O
886 }
887
888 cc_e(){
889     eval printf '%s\\n' $CC_E
890 }
891
892 check_cc(){
893     log check_cc "$@"
894     cat > $TMPC
895     log_file $TMPC
896     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
897 }
898
899 check_cxx(){
900     log check_cxx "$@"
901     cat > $TMPCPP
902     log_file $TMPCPP
903     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
904 }
905
906 check_objcc(){
907     log check_objcc "$@"
908     cat > $TMPM
909     log_file $TMPM
910     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
911 }
912
913 check_cpp(){
914     log check_cpp "$@"
915     cat > $TMPC
916     log_file $TMPC
917     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
918 }
919
920 as_o(){
921     eval printf '%s\\n' $AS_O
922 }
923
924 check_as(){
925     log check_as "$@"
926     cat > $TMPS
927     log_file $TMPS
928     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
929 }
930
931 check_inline_asm(){
932     log check_inline_asm "$@"
933     name="$1"
934     code="$2"
935     shift 2
936     disable $name
937     check_cc "$@" <<EOF && enable $name
938 void foo(void){ __asm__ volatile($code); }
939 EOF
940 }
941
942 check_inline_asm_flags(){
943     log check_inline_asm_flags "$@"
944     name="$1"
945     code="$2"
946     flags=''
947     shift 2
948     while [ "$1" != "" ]; do
949       append flags $1
950       shift
951     done;
952     disable $name
953     cat > $TMPC <<EOF
954 void foo(void){ __asm__ volatile($code); }
955 EOF
956     log_file $TMPC
957     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
958     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
959 }
960
961 check_insn(){
962     log check_insn "$@"
963     check_inline_asm ${1}_inline "\"$2\""
964     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
965 }
966
967 check_yasm(){
968     log check_yasm "$@"
969     echo "$1" > $TMPS
970     log_file $TMPS
971     shift 1
972     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
973 }
974
975 ld_o(){
976     eval printf '%s\\n' $LD_O
977 }
978
979 check_ld(){
980     log check_ld "$@"
981     type=$1
982     shift 1
983     flags=$(filter_out '-l*|*.so' $@)
984     libs=$(filter '-l*|*.so' $@)
985     check_$type $($cflags_filter $flags) || return
986     flags=$($ldflags_filter $flags)
987     libs=$($ldflags_filter $libs)
988     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
989 }
990
991 print_include(){
992     hdr=$1
993     test "${hdr%.h}" = "${hdr}" &&
994         echo "#include $hdr"    ||
995         echo "#include <$hdr>"
996 }
997
998 check_code(){
999     log check_code "$@"
1000     check=$1
1001     headers=$2
1002     code=$3
1003     shift 3
1004     {
1005         for hdr in $headers; do
1006             print_include $hdr
1007         done
1008         echo "int main(void) { $code; return 0; }"
1009     } | check_$check "$@"
1010 }
1011
1012 check_cppflags(){
1013     log check_cppflags "$@"
1014     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1015 int x;
1016 EOF
1017 }
1018
1019 test_cflags(){
1020     log test_cflags "$@"
1021     set -- $($cflags_filter "$@")
1022     check_cc "$@" <<EOF
1023 int x;
1024 EOF
1025 }
1026
1027 check_cflags(){
1028     log check_cflags "$@"
1029     test_cflags "$@" && add_cflags "$@"
1030 }
1031
1032 check_cxxflags(){
1033     log check_cxxflags "$@"
1034     set -- $($cflags_filter "$@")
1035     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1036 int x;
1037 EOF
1038 }
1039
1040 test_objcflags(){
1041     log test_cflags "$@"
1042     set -- $($cflags_filter "$@")
1043     check_objcc "$@" <<EOF
1044 int x;
1045 EOF
1046 }
1047
1048 check_objcflags(){
1049     log check_cflags "$@"
1050     test_objcflags "$@" && add_objcflags "$@"
1051 }
1052
1053 test_ldflags(){
1054     log test_ldflags "$@"
1055     check_ld "cc" "$@" <<EOF
1056 int main(void){ return 0; }
1057 EOF
1058 }
1059
1060 check_ldflags(){
1061     log check_ldflags "$@"
1062     test_ldflags "$@" && add_ldflags "$@"
1063 }
1064
1065 test_stripflags(){
1066     log test_stripflags "$@"
1067     # call check_cc to get a fresh TMPO
1068     check_cc <<EOF
1069 int main(void) { return 0; }
1070 EOF
1071     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1072 }
1073
1074 check_stripflags(){
1075     log check_stripflags "$@"
1076     test_stripflags "$@" && add_stripflags "$@"
1077 }
1078
1079 check_header(){
1080     log check_header "$@"
1081     header=$1
1082     shift
1083     disable_safe $header
1084     check_cpp "$@" <<EOF && enable_safe $header
1085 #include <$header>
1086 int x;
1087 EOF
1088 }
1089
1090 check_header_objcc(){
1091     log check_header_objcc "$@"
1092     rm -f -- "$TMPO"
1093     header=$1
1094     shift
1095     disable_safe $header
1096     {
1097        echo "#include <$header>"
1098        echo "int main(void) { return 0; }"
1099     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1100 }
1101
1102 check_func(){
1103     log check_func "$@"
1104     func=$1
1105     shift
1106     disable $func
1107     check_ld "cc" "$@" <<EOF && enable $func
1108 extern int $func();
1109 int main(void){ $func(); }
1110 EOF
1111 }
1112
1113 check_complexfunc(){
1114     log check_complexfunc "$@"
1115     func=$1
1116     narg=$2
1117     shift 2
1118     test $narg = 2 && args="f, g" || args="f * I"
1119     disable $func
1120     check_ld "cc" "$@" <<EOF && enable $func
1121 #include <complex.h>
1122 #include <math.h>
1123 float foo(complex float f, complex float g) { return $func($args); }
1124 int main(void){ return (int) foo; }
1125 EOF
1126 }
1127
1128 check_mathfunc(){
1129     log check_mathfunc "$@"
1130     func=$1
1131     narg=$2
1132     shift 2
1133     test $narg = 2 && args="f, g" || args="f"
1134     disable $func
1135     check_ld "cc" "$@" <<EOF && enable $func
1136 #include <math.h>
1137 float foo(float f, float g) { return $func($args); }
1138 int main(void){ return (int) foo; }
1139 EOF
1140 }
1141
1142 check_func_headers(){
1143     log check_func_headers "$@"
1144     headers=$1
1145     funcs=$2
1146     shift 2
1147     {
1148         for hdr in $headers; do
1149             print_include $hdr
1150         done
1151         for func in $funcs; do
1152             echo "long check_$func(void) { return (long) $func; }"
1153         done
1154         echo "int main(void) { return 0; }"
1155     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1156 }
1157
1158 check_class_headers_cpp(){
1159     log check_class_headers_cpp "$@"
1160     headers=$1
1161     classes=$2
1162     shift 2
1163     {
1164         for hdr in $headers; do
1165             echo "#include <$hdr>"
1166         done
1167         echo "int main(void) { "
1168         i=1
1169         for class in $classes; do
1170             echo "$class obj$i;"
1171             i=$(expr $i + 1)
1172         done
1173         echo "return 0; }"
1174     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1175 }
1176
1177 check_cpp_condition(){
1178     log check_cpp_condition "$@"
1179     header=$1
1180     condition=$2
1181     shift 2
1182     check_cpp "$@" <<EOF
1183 #include <$header>
1184 #if !($condition)
1185 #error "unsatisfied condition: $condition"
1186 #endif
1187 EOF
1188 }
1189
1190 check_lib(){
1191     log check_lib "$@"
1192     header="$1"
1193     func="$2"
1194     shift 2
1195     check_header $header && check_func $func "$@" && add_extralibs "$@"
1196 }
1197
1198 check_lib2(){
1199     log check_lib2 "$@"
1200     headers="$1"
1201     funcs="$2"
1202     shift 2
1203     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1204 }
1205
1206 check_lib_cpp(){
1207     log check_lib_cpp "$@"
1208     headers="$1"
1209     classes="$2"
1210     shift 2
1211     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1212 }
1213
1214 check_pkg_config(){
1215     log check_pkg_config "$@"
1216     pkgandversion="$1"
1217     pkg="${1%% *}"
1218     headers="$2"
1219     funcs="$3"
1220     shift 3
1221     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1222     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1223     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1224     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1225         set_safe "${pkg}_cflags" $pkg_cflags   &&
1226         set_safe "${pkg}_libs"   $pkg_libs
1227 }
1228
1229 check_exec(){
1230     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1231 }
1232
1233 check_exec_crash(){
1234     code=$(cat)
1235
1236     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1237     # are safe but may not be available everywhere.  Thus we use
1238     # raise(SIGTERM) instead.  The check is run in a subshell so we
1239     # can redirect the "Terminated" message from the shell.  SIGBUS
1240     # is not defined by standard C so it is used conditionally.
1241
1242     (check_exec "$@") >> $logfile 2>&1 <<EOF
1243 #include <signal.h>
1244 static void sighandler(int sig){
1245     raise(SIGTERM);
1246 }
1247 int foo(void){
1248     $code
1249 }
1250 int (*func_ptr)(void) = foo;
1251 int main(void){
1252     signal(SIGILL, sighandler);
1253     signal(SIGFPE, sighandler);
1254     signal(SIGSEGV, sighandler);
1255 #ifdef SIGBUS
1256     signal(SIGBUS, sighandler);
1257 #endif
1258     return func_ptr();
1259 }
1260 EOF
1261 }
1262
1263 check_type(){
1264     log check_type "$@"
1265     headers=$1
1266     type=$2
1267     shift 2
1268     disable_safe "$type"
1269     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1270 }
1271
1272 check_struct(){
1273     log check_struct "$@"
1274     headers=$1
1275     struct=$2
1276     member=$3
1277     shift 3
1278     disable_safe "${struct}_${member}"
1279     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1280         enable_safe "${struct}_${member}"
1281 }
1282
1283 check_builtin(){
1284     log check_builtin "$@"
1285     name=$1
1286     headers=$2
1287     builtin=$3
1288     shift 3
1289     disable "$name"
1290     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1291 }
1292
1293 check_compile_assert(){
1294     log check_compile_assert "$@"
1295     name=$1
1296     headers=$2
1297     condition=$3
1298     shift 3
1299     disable "$name"
1300     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1301 }
1302
1303 require(){
1304     name="$1"
1305     header="$2"
1306     func="$3"
1307     shift 3
1308     check_lib $header $func "$@" || die "ERROR: $name not found"
1309 }
1310
1311 require2(){
1312     name="$1"
1313     headers="$2"
1314     func="$3"
1315     shift 3
1316     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1317 }
1318
1319 require_cpp(){
1320     name="$1"
1321     headers="$2"
1322     classes="$3"
1323     shift 3
1324     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1325 }
1326
1327 use_pkg_config(){
1328     pkg="$1"
1329     check_pkg_config "$@" || return 1
1330     add_cflags    $(get_safe "${pkg}_cflags")
1331     add_extralibs $(get_safe "${pkg}_libs")
1332 }
1333
1334 require_pkg_config(){
1335     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1336 }
1337
1338 require_libfreetype(){
1339     log require_libfreetype "$@"
1340     pkg="freetype2"
1341     check_cmd $pkg_config --exists --print-errors $pkg \
1342       || die "ERROR: $pkg not found"
1343     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1344     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1345     {
1346         echo "#include <ft2build.h>"
1347         echo "#include FT_FREETYPE_H"
1348         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1349         echo "int main(void) { return 0; }"
1350     } | check_ld "cc" $pkg_cflags $pkg_libs \
1351       && set_safe "${pkg}_cflags" $pkg_cflags \
1352       && set_safe "${pkg}_libs"   $pkg_libs \
1353       || die "ERROR: $pkg not found"
1354     add_cflags    $(get_safe "${pkg}_cflags")
1355     add_extralibs $(get_safe "${pkg}_libs")
1356 }
1357
1358 hostcc_e(){
1359     eval printf '%s\\n' $HOSTCC_E
1360 }
1361
1362 hostcc_o(){
1363     eval printf '%s\\n' $HOSTCC_O
1364 }
1365
1366 check_host_cc(){
1367     log check_host_cc "$@"
1368     cat > $TMPC
1369     log_file $TMPC
1370     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1371 }
1372
1373 check_host_cpp(){
1374     log check_host_cpp "$@"
1375     cat > $TMPC
1376     log_file $TMPC
1377     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1378 }
1379
1380 check_host_cppflags(){
1381     log check_host_cppflags "$@"
1382     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1383 int x;
1384 EOF
1385 }
1386
1387 check_host_cflags(){
1388     log check_host_cflags "$@"
1389     set -- $($host_cflags_filter "$@")
1390     check_host_cc "$@" <<EOF && append host_cflags "$@"
1391 int x;
1392 EOF
1393 }
1394
1395 check_host_cpp_condition(){
1396     log check_host_cpp_condition "$@"
1397     header=$1
1398     condition=$2
1399     shift 2
1400     check_host_cpp "$@" <<EOF
1401 #include <$header>
1402 #if !($condition)
1403 #error "unsatisfied condition: $condition"
1404 #endif
1405 EOF
1406 }
1407
1408 cp_if_changed(){
1409     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1410     mkdir -p "$(dirname $2)"
1411     $cp_f "$1" "$2"
1412 }
1413
1414 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1415 # system-dependent things.
1416
1417 AVCODEC_COMPONENTS="
1418     bsfs
1419     decoders
1420     encoders
1421     hwaccels
1422     parsers
1423 "
1424
1425 AVDEVICE_COMPONENTS="
1426     indevs
1427     outdevs
1428 "
1429 AVFILTER_COMPONENTS="
1430     filters
1431 "
1432 AVFORMAT_COMPONENTS="
1433     demuxers
1434     muxers
1435     protocols
1436 "
1437
1438 AVRESAMPLE_COMPONENTS=""
1439 AVUTIL_COMPONENTS=""
1440
1441 COMPONENT_LIST="
1442     $AVCODEC_COMPONENTS
1443     $AVDEVICE_COMPONENTS
1444     $AVFILTER_COMPONENTS
1445     $AVFORMAT_COMPONENTS
1446     $AVRESAMPLE_COMPONENTS
1447     $AVUTIL_COMPONENTS
1448 "
1449
1450 EXAMPLE_LIST="
1451     avio_reading_example
1452     avio_dir_cmd_example
1453     decoding_encoding_example
1454     demuxing_decoding_example
1455     extract_mvs_example
1456     filter_audio_example
1457     filtering_audio_example
1458     filtering_video_example
1459     metadata_example
1460     muxing_example
1461     qsvdec_example
1462     remuxing_example
1463     resampling_audio_example
1464     scaling_video_example
1465     transcode_aac_example
1466     transcoding_example
1467 "
1468
1469 EXTERNAL_LIBRARY_LIST="
1470     avisynth
1471     bzlib
1472     chromaprint
1473     crystalhd
1474     decklink
1475     frei0r
1476     gcrypt
1477     gmp
1478     gnutls
1479     iconv
1480     jni
1481     ladspa
1482     libass
1483     libbluray
1484     libbs2b
1485     libcaca
1486     libcdio
1487     libcelt
1488     libdc1394
1489     libebur128
1490     libfaac
1491     libfdk_aac
1492     libflite
1493     libfontconfig
1494     libfreetype
1495     libfribidi
1496     libgme
1497     libgsm
1498     libiec61883
1499     libilbc
1500     libkvazaar
1501     libmodplug
1502     libmp3lame
1503     libnut
1504     libopencore_amrnb
1505     libopencore_amrwb
1506     libopencv
1507     libopenh264
1508     libopenjpeg
1509     libopenmpt
1510     libopus
1511     libpulse
1512     librtmp
1513     librubberband
1514     libschroedinger
1515     libshine
1516     libsmbclient
1517     libsnappy
1518     libsoxr
1519     libspeex
1520     libssh
1521     libtesseract
1522     libtheora
1523     libtwolame
1524     libv4l2
1525     libvidstab
1526     libvo_amrwbenc
1527     libvorbis
1528     libvpx
1529     libwavpack
1530     libwebp
1531     libx264
1532     libx265
1533     libxavs
1534     libxcb
1535     libxcb_shm
1536     libxcb_shape
1537     libxcb_xfixes
1538     libxvid
1539     libzimg
1540     libzmq
1541     libzvbi
1542     lzma
1543     mediacodec
1544     netcdf
1545     openal
1546     opencl
1547     opengl
1548     openssl
1549     schannel
1550     sdl
1551     securetransport
1552     videotoolbox
1553     x11grab
1554     xlib
1555     zlib
1556 "
1557
1558 HWACCEL_LIBRARY_LIST="
1559     audiotoolbox
1560     cuda
1561     cuvid
1562     d3d11va
1563     dxva2
1564     libmfx
1565     libnpp
1566     mmal
1567     nvenc
1568     omx
1569     vaapi
1570     vda
1571     vdpau
1572     videotoolbox_hwaccel
1573     xvmc
1574 "
1575
1576 DOCUMENT_LIST="
1577     doc
1578     htmlpages
1579     manpages
1580     podpages
1581     txtpages
1582 "
1583
1584 FEATURE_LIST="
1585     ftrapv
1586     gray
1587     hardcoded_tables
1588     omx_rpi
1589     runtime_cpudetect
1590     safe_bitstream_reader
1591     shared
1592     small
1593     static
1594     swscale_alpha
1595 "
1596
1597 LIBRARY_LIST="
1598     avcodec
1599     avdevice
1600     avfilter
1601     avformat
1602     avresample
1603     avutil
1604     postproc
1605     swresample
1606     swscale
1607 "
1608
1609 LICENSE_LIST="
1610     gpl
1611     nonfree
1612     version3
1613 "
1614
1615 PROGRAM_LIST="
1616     ffplay
1617     ffprobe
1618     ffserver
1619     ffmpeg
1620 "
1621
1622 SUBSYSTEM_LIST="
1623     dct
1624     dwt
1625     error_resilience
1626     faan
1627     fast_unaligned
1628     fft
1629     lsp
1630     lzo
1631     mdct
1632     pixelutils
1633     network
1634     rdft
1635 "
1636
1637 CONFIG_LIST="
1638     $COMPONENT_LIST
1639     $DOCUMENT_LIST
1640     $EXAMPLE_LIST
1641     $EXTERNAL_LIBRARY_LIST
1642     $HWACCEL_LIBRARY_LIST
1643     $FEATURE_LIST
1644     $LICENSE_LIST
1645     $LIBRARY_LIST
1646     $PROGRAM_LIST
1647     $SUBSYSTEM_LIST
1648     fontconfig
1649     incompatible_libav_abi
1650     memalign_hack
1651     memory_poisoning
1652     neon_clobber_test
1653     pic
1654     pod2man
1655     raise_major
1656     thumb
1657     valgrind_backtrace
1658     xmm_clobber_test
1659 "
1660
1661 THREADS_LIST="
1662     pthreads
1663     os2threads
1664     w32threads
1665 "
1666
1667 ATOMICS_LIST="
1668     atomics_gcc
1669     atomics_suncc
1670     atomics_win32
1671 "
1672
1673 ARCH_LIST="
1674     aarch64
1675     alpha
1676     arm
1677     avr32
1678     avr32_ap
1679     avr32_uc
1680     bfin
1681     ia64
1682     m68k
1683     mips
1684     mips64
1685     parisc
1686     ppc
1687     ppc64
1688     s390
1689     sh4
1690     sparc
1691     sparc64
1692     tilegx
1693     tilepro
1694     tomi
1695     x86
1696     x86_32
1697     x86_64
1698 "
1699
1700 ARCH_EXT_LIST_ARM="
1701     armv5te
1702     armv6
1703     armv6t2
1704     armv8
1705     neon
1706     vfp
1707     vfpv3
1708     setend
1709 "
1710
1711 ARCH_EXT_LIST_MIPS="
1712     mipsfpu
1713     mips32r2
1714     mips32r5
1715     mips64r2
1716     mips32r6
1717     mips64r6
1718     mipsdsp
1719     mipsdspr2
1720     msa
1721 "
1722
1723 ARCH_EXT_LIST_LOONGSON="
1724     loongson2
1725     loongson3
1726     mmi
1727 "
1728
1729 ARCH_EXT_LIST_X86_SIMD="
1730     aesni
1731     amd3dnow
1732     amd3dnowext
1733     avx
1734     avx2
1735     fma3
1736     fma4
1737     mmx
1738     mmxext
1739     sse
1740     sse2
1741     sse3
1742     sse4
1743     sse42
1744     ssse3
1745     xop
1746 "
1747
1748 ARCH_EXT_LIST_PPC="
1749     altivec
1750     dcbzl
1751     ldbrx
1752     power8
1753     ppc4xx
1754     vsx
1755 "
1756
1757 ARCH_EXT_LIST_X86="
1758     $ARCH_EXT_LIST_X86_SIMD
1759     cpunop
1760     i686
1761 "
1762
1763 ARCH_EXT_LIST="
1764     $ARCH_EXT_LIST_ARM
1765     $ARCH_EXT_LIST_PPC
1766     $ARCH_EXT_LIST_X86
1767     $ARCH_EXT_LIST_MIPS
1768     $ARCH_EXT_LIST_LOONGSON
1769 "
1770
1771 ARCH_FEATURES="
1772     aligned_stack
1773     fast_64bit
1774     fast_clz
1775     fast_cmov
1776     local_aligned_8
1777     local_aligned_16
1778     local_aligned_32
1779     simd_align_16
1780 "
1781
1782 BUILTIN_LIST="
1783     atomic_cas_ptr
1784     atomic_compare_exchange
1785     machine_rw_barrier
1786     MemoryBarrier
1787     mm_empty
1788     rdtsc
1789     sarestart
1790     sem_timedwait
1791     sync_val_compare_and_swap
1792 "
1793 HAVE_LIST_CMDLINE="
1794     inline_asm
1795     symver
1796     yasm
1797 "
1798
1799 HAVE_LIST_PUB="
1800     bigendian
1801     fast_unaligned
1802     incompatible_libav_abi
1803 "
1804
1805 HEADERS_LIST="
1806     alsa_asoundlib_h
1807     altivec_h
1808     arpa_inet_h
1809     asm_types_h
1810     cdio_paranoia_h
1811     cdio_paranoia_paranoia_h
1812     dispatch_dispatch_h
1813     dev_bktr_ioctl_bt848_h
1814     dev_bktr_ioctl_meteor_h
1815     dev_ic_bt8xx_h
1816     dev_video_bktr_ioctl_bt848_h
1817     dev_video_meteor_ioctl_meteor_h
1818     direct_h
1819     dirent_h
1820     dlfcn_h
1821     d3d11_h
1822     dxva_h
1823     ES2_gl_h
1824     gsm_h
1825     io_h
1826     mach_mach_time_h
1827     machine_ioctl_bt848_h
1828     machine_ioctl_meteor_h
1829     malloc_h
1830     opencv2_core_core_c_h
1831     openjpeg_2_1_openjpeg_h
1832     openjpeg_2_0_openjpeg_h
1833     openjpeg_1_5_openjpeg_h
1834     OpenGL_gl3_h
1835     poll_h
1836     sndio_h
1837     soundcard_h
1838     sys_mman_h
1839     sys_param_h
1840     sys_resource_h
1841     sys_select_h
1842     sys_soundcard_h
1843     sys_time_h
1844     sys_un_h
1845     sys_videoio_h
1846     termios_h
1847     udplite_h
1848     unistd_h
1849     valgrind_valgrind_h
1850     windows_h
1851     winsock2_h
1852 "
1853
1854 INTRINSICS_LIST="
1855     intrinsics_neon
1856 "
1857
1858 COMPLEX_FUNCS="
1859     cabs
1860     cexp
1861 "
1862
1863 MATH_FUNCS="
1864     atanf
1865     atan2f
1866     cbrt
1867     cbrtf
1868     copysign
1869     cosf
1870     erf
1871     exp2
1872     exp2f
1873     expf
1874     hypot
1875     isfinite
1876     isinf
1877     isnan
1878     ldexpf
1879     llrint
1880     llrintf
1881     log2
1882     log2f
1883     log10f
1884     lrint
1885     lrintf
1886     powf
1887     rint
1888     round
1889     roundf
1890     sinf
1891     trunc
1892     truncf
1893 "
1894
1895 SYSTEM_FUNCS="
1896     access
1897     aligned_malloc
1898     arc4random
1899     clock_gettime
1900     closesocket
1901     CommandLineToArgvW
1902     CoTaskMemFree
1903     CryptGenRandom
1904     dlopen
1905     fcntl
1906     flt_lim
1907     fork
1908     getaddrinfo
1909     gethrtime
1910     getopt
1911     GetProcessAffinityMask
1912     GetProcessMemoryInfo
1913     GetProcessTimes
1914     getrusage
1915     GetSystemTimeAsFileTime
1916     gettimeofday
1917     glob
1918     glXGetProcAddress
1919     gmtime_r
1920     inet_aton
1921     isatty
1922     jack_port_get_latency_range
1923     kbhit
1924     localtime_r
1925     lstat
1926     lzo1x_999_compress
1927     mach_absolute_time
1928     MapViewOfFile
1929     memalign
1930     mkstemp
1931     mmap
1932     mprotect
1933     nanosleep
1934     PeekNamedPipe
1935     posix_memalign
1936     pthread_cancel
1937     sched_getaffinity
1938     SetConsoleTextAttribute
1939     SetConsoleCtrlHandler
1940     setmode
1941     setrlimit
1942     Sleep
1943     strerror_r
1944     sysconf
1945     sysctl
1946     usleep
1947     UTGetOSTypeFromString
1948     VirtualAlloc
1949     wglGetProcAddress
1950 "
1951
1952 TOOLCHAIN_FEATURES="
1953     as_dn_directive
1954     as_func
1955     as_object_arch
1956     asm_mod_q
1957     attribute_may_alias
1958     attribute_packed
1959     ebp_available
1960     ebx_available
1961     gnu_as
1962     gnu_windres
1963     ibm_asm
1964     inline_asm_direct_symbol_refs
1965     inline_asm_labels
1966     inline_asm_nonlocal_labels
1967     pragma_deprecated
1968     rsync_contimeout
1969     symver_asm_label
1970     symver_gnu_asm
1971     vfp_args
1972     xform_asm
1973     xmm_clobbers
1974 "
1975
1976 TYPES_LIST="
1977     CONDITION_VARIABLE_Ptr
1978     socklen_t
1979     struct_addrinfo
1980     struct_group_source_req
1981     struct_ip_mreq_source
1982     struct_ipv6_mreq
1983     struct_msghdr_msg_flags
1984     struct_pollfd
1985     struct_rusage_ru_maxrss
1986     struct_sctp_event_subscribe
1987     struct_sockaddr_in6
1988     struct_sockaddr_sa_len
1989     struct_sockaddr_storage
1990     struct_stat_st_mtim_tv_nsec
1991     struct_v4l2_frmivalenum_discrete
1992 "
1993
1994 HAVE_LIST="
1995     $ARCH_EXT_LIST
1996     $(add_suffix _external $ARCH_EXT_LIST)
1997     $(add_suffix _inline   $ARCH_EXT_LIST)
1998     $ARCH_FEATURES
1999     $ATOMICS_LIST
2000     $BUILTIN_LIST
2001     $COMPLEX_FUNCS
2002     $HAVE_LIST_CMDLINE
2003     $HAVE_LIST_PUB
2004     $HEADERS_LIST
2005     $INTRINSICS_LIST
2006     $MATH_FUNCS
2007     $SYSTEM_FUNCS
2008     $THREADS_LIST
2009     $TOOLCHAIN_FEATURES
2010     $TYPES_LIST
2011     atomics_native
2012     dos_paths
2013     dxva2_lib
2014     dxva2api_cobj
2015     libc_msvcrt
2016     libdc1394_1
2017     libdc1394_2
2018     makeinfo
2019     makeinfo_html
2020     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2021     perl
2022     pod2man
2023     sdl
2024     section_data_rel_ro
2025     texi2html
2026     threads
2027     vaapi_drm
2028     vaapi_x11
2029     vdpau_x11
2030     winrt
2031     xlib
2032 "
2033
2034 # options emitted with CONFIG_ prefix but not available on the command line
2035 CONFIG_EXTRA="
2036     aandcttables
2037     ac3dsp
2038     audio_frame_queue
2039     audiodsp
2040     blockdsp
2041     bswapdsp
2042     cabac
2043     dirac_parse
2044     dvprofile
2045     exif
2046     faandct
2047     faanidct
2048     fdctdsp
2049     flacdsp
2050     fmtconvert
2051     frame_thread_encoder
2052     g722dsp
2053     golomb
2054     gplv3
2055     h263dsp
2056     h264chroma
2057     h264dsp
2058     h264pred
2059     h264qpel
2060     hpeldsp
2061     huffman
2062     huffyuvdsp
2063     huffyuvencdsp
2064     idctdsp
2065     iirfilter
2066     imdct15
2067     intrax8
2068     iso_media
2069     ividsp
2070     jpegtables
2071     lgplv3
2072     libx262
2073     llauddsp
2074     llviddsp
2075     lpc
2076     lzf
2077     me_cmp
2078     mpeg_er
2079     mpegaudio
2080     mpegaudiodsp
2081     mpegvideo
2082     mpegvideoenc
2083     mss34dsp
2084     pixblockdsp
2085     qpeldsp
2086     qsv
2087     qsvdec
2088     qsvenc
2089     rangecoder
2090     riffdec
2091     riffenc
2092     rtpdec
2093     rtpenc_chain
2094     rv34dsp
2095     sinewin
2096     snappy
2097     srtp
2098     startcode
2099     texturedsp
2100     texturedspenc
2101     tpeldsp
2102     vaapi_encode
2103     vc1dsp
2104     videodsp
2105     vp3dsp
2106     vp56dsp
2107     vp8dsp
2108     vt_bt2020
2109     wma_freqs
2110     wmv2dsp
2111 "
2112
2113 CMDLINE_SELECT="
2114     $ARCH_EXT_LIST
2115     $CONFIG_LIST
2116     $HAVE_LIST_CMDLINE
2117     $THREADS_LIST
2118     asm
2119     cross_compile
2120     debug
2121     extra_warnings
2122     logging
2123     lto
2124     optimizations
2125     rpath
2126     stripping
2127 "
2128
2129 PATHS_LIST="
2130     bindir
2131     datadir
2132     docdir
2133     incdir
2134     libdir
2135     mandir
2136     pkgconfigdir
2137     prefix
2138     shlibdir
2139     install_name_dir
2140 "
2141
2142 CMDLINE_SET="
2143     $PATHS_LIST
2144     ar
2145     arch
2146     as
2147     assert_level
2148     build_suffix
2149     cc
2150     objcc
2151     cpu
2152     cross_prefix
2153     custom_allocator
2154     cxx
2155     dep_cc
2156     doxygen
2157     env
2158     extra_version
2159     gas
2160     host_cc
2161     host_cflags
2162     host_ld
2163     host_ldflags
2164     host_libs
2165     host_os
2166     install
2167     ld
2168     ln_s
2169     logfile
2170     malloc_prefix
2171     nm
2172     optflags
2173     pkg_config
2174     pkg_config_flags
2175     progs_suffix
2176     random_seed
2177     ranlib
2178     samples
2179     strip
2180     sws_max_filter_size
2181     sysinclude
2182     sysroot
2183     target_exec
2184     target_os
2185     target_path
2186     target_samples
2187     tempprefix
2188     toolchain
2189     valgrind
2190     yasmexe
2191 "
2192
2193 CMDLINE_APPEND="
2194     extra_cflags
2195     extra_cxxflags
2196     extra_objcflags
2197     host_cppflags
2198 "
2199
2200 # code dependency declarations
2201
2202 # architecture extensions
2203
2204 armv5te_deps="arm"
2205 armv6_deps="arm"
2206 armv6t2_deps="arm"
2207 armv8_deps="aarch64"
2208 neon_deps_any="aarch64 arm"
2209 intrinsics_neon_deps="neon"
2210 vfp_deps_any="aarch64 arm"
2211 vfpv3_deps="vfp"
2212 setend_deps="arm"
2213
2214 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2215
2216 loongson2_deps="mips"
2217 loongson3_deps="mips"
2218 mipsfpu_deps="mips"
2219 mipsdsp_deps="mips"
2220 mipsdspr2_deps="mips"
2221 mips32r2_deps="mips"
2222 mips32r5_deps="mips"
2223 mips32r6_deps="mips"
2224 mips64r2_deps="mips"
2225 mips64r6_deps="mips"
2226 msa_deps="mipsfpu"
2227 mmi_deps="mips"
2228
2229 altivec_deps="ppc"
2230 dcbzl_deps="ppc"
2231 ldbrx_deps="ppc"
2232 ppc4xx_deps="ppc"
2233 vsx_deps="altivec"
2234 power8_deps="vsx"
2235
2236 cpunop_deps="i686"
2237 x86_64_select="i686"
2238 x86_64_suggest="fast_cmov"
2239
2240 amd3dnow_deps="mmx"
2241 amd3dnowext_deps="amd3dnow"
2242 i686_deps="x86"
2243 mmx_deps="x86"
2244 mmxext_deps="mmx"
2245 sse_deps="mmxext"
2246 sse2_deps="sse"
2247 sse3_deps="sse2"
2248 ssse3_deps="sse3"
2249 sse4_deps="ssse3"
2250 sse42_deps="sse4"
2251 aesni_deps="sse42"
2252 avx_deps="sse42"
2253 xop_deps="avx"
2254 fma3_deps="avx"
2255 fma4_deps="avx"
2256 avx2_deps="avx"
2257
2258 mmx_external_deps="yasm"
2259 mmx_inline_deps="inline_asm"
2260 mmx_suggest="mmx_external mmx_inline"
2261
2262 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2263     eval dep=\$${ext}_deps
2264     eval ${ext}_external_deps='"${dep}_external"'
2265     eval ${ext}_inline_deps='"${dep}_inline"'
2266     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2267 done
2268
2269 aligned_stack_if_any="aarch64 ppc x86"
2270 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2271 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2272 fast_unaligned_if_any="aarch64 ppc x86"
2273 simd_align_16_if_any="altivec neon sse"
2274
2275 # system capabilities
2276 symver_if_any="symver_asm_label symver_gnu_asm"
2277 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2278
2279 # threading support
2280 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2281 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2282 atomics_win32_if="MemoryBarrier"
2283 atomics_native_if_any="$ATOMICS_LIST"
2284 w32threads_deps="atomics_native"
2285 threads_if_any="$THREADS_LIST"
2286
2287 # subsystems
2288 dct_select="rdft"
2289 dirac_parse_select="golomb"
2290 error_resilience_select="me_cmp"
2291 faandct_deps="faan fdctdsp"
2292 faanidct_deps="faan idctdsp"
2293 h264dsp_select="startcode"
2294 frame_thread_encoder_deps="encoders threads"
2295 intrax8_select="blockdsp idctdsp"
2296 mdct_select="fft"
2297 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2298 mpeg_er_select="error_resilience"
2299 mpegaudio_select="mpegaudiodsp"
2300 mpegaudiodsp_select="dct"
2301 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2302 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2303 vc1dsp_select="h264chroma qpeldsp startcode"
2304 rdft_select="fft"
2305
2306 # decoders / encoders
2307 aac_decoder_select="imdct15 mdct sinewin"
2308 aac_fixed_decoder_select="mdct sinewin"
2309 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2310 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2311 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2312 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2313 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2314 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2315 adpcm_g722_decoder_select="g722dsp"
2316 adpcm_g722_encoder_select="g722dsp"
2317 aic_decoder_select="golomb idctdsp"
2318 alac_encoder_select="lpc"
2319 als_decoder_select="bswapdsp"
2320 amrnb_decoder_select="lsp"
2321 amrwb_decoder_select="lsp"
2322 amv_decoder_select="sp5x_decoder exif"
2323 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2324 ape_decoder_select="bswapdsp llauddsp"
2325 apng_decoder_select="zlib"
2326 apng_encoder_select="huffyuvencdsp zlib"
2327 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2328 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2329 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2330 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2331 atrac1_decoder_select="mdct sinewin"
2332 atrac3_decoder_select="mdct"
2333 atrac3p_decoder_select="mdct sinewin"
2334 avrn_decoder_select="exif jpegtables"
2335 bink_decoder_select="blockdsp hpeldsp"
2336 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2337 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2338 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2339 cllc_decoder_select="bswapdsp"
2340 comfortnoise_encoder_select="lpc"
2341 cook_decoder_select="audiodsp mdct sinewin"
2342 cscd_decoder_select="lzo"
2343 cscd_decoder_suggest="zlib"
2344 dca_decoder_select="mdct"
2345 dds_decoder_select="texturedsp"
2346 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2347 dnxhd_decoder_select="blockdsp idctdsp"
2348 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2349 dvvideo_decoder_select="dvprofile idctdsp"
2350 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2351 dxa_decoder_select="zlib"
2352 dxv_decoder_select="lzf texturedsp"
2353 eac3_decoder_select="ac3_decoder"
2354 eac3_encoder_select="ac3_encoder"
2355 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2356 eatgq_decoder_select="aandcttables"
2357 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2358 exr_decoder_select="zlib"
2359 ffv1_decoder_select="golomb rangecoder"
2360 ffv1_encoder_select="rangecoder"
2361 ffvhuff_decoder_select="huffyuv_decoder"
2362 ffvhuff_encoder_select="huffyuv_encoder"
2363 fic_decoder_select="golomb"
2364 flac_decoder_select="flacdsp golomb"
2365 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2366 flashsv2_decoder_select="zlib"
2367 flashsv2_encoder_select="zlib"
2368 flashsv_decoder_select="zlib"
2369 flashsv_encoder_select="zlib"
2370 flv_decoder_select="h263_decoder"
2371 flv_encoder_select="h263_encoder"
2372 fourxm_decoder_select="blockdsp bswapdsp"
2373 fraps_decoder_select="bswapdsp huffman"
2374 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2375 g729_decoder_select="audiodsp"
2376 h261_decoder_select="mpegvideo"
2377 h261_encoder_select="aandcttables mpegvideoenc"
2378 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2379 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2380 h263i_decoder_select="h263_decoder"
2381 h263p_decoder_select="h263_decoder"
2382 h263p_encoder_select="h263_encoder"
2383 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2384 h264_decoder_suggest="error_resilience"
2385 hap_decoder_select="snappy texturedsp"
2386 hap_encoder_deps="libsnappy"
2387 hap_encoder_select="texturedspenc"
2388 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2389 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2390 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2391 iac_decoder_select="imc_decoder"
2392 imc_decoder_select="bswapdsp fft mdct sinewin"
2393 indeo3_decoder_select="hpeldsp"
2394 indeo4_decoder_select="ividsp"
2395 indeo5_decoder_select="ividsp"
2396 interplay_video_decoder_select="hpeldsp"
2397 jpegls_decoder_select="golomb mjpeg_decoder"
2398 jpegls_encoder_select="golomb"
2399 jv_decoder_select="blockdsp"
2400 lagarith_decoder_select="huffyuvdsp"
2401 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2402 loco_decoder_select="golomb"
2403 magicyuv_decoder_select="huffyuvdsp"
2404 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2405 metasound_decoder_select="lsp mdct sinewin"
2406 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2407 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2408 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2409 mjpegb_decoder_select="mjpeg_decoder"
2410 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2411 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2412 mlp_decoder_select="mlp_parser"
2413 motionpixels_decoder_select="bswapdsp"
2414 mp1_decoder_select="mpegaudio"
2415 mp1float_decoder_select="mpegaudio"
2416 mp2_decoder_select="mpegaudio"
2417 mp2float_decoder_select="mpegaudio"
2418 mp3_decoder_select="mpegaudio"
2419 mp3adu_decoder_select="mpegaudio"
2420 mp3adufloat_decoder_select="mpegaudio"
2421 mp3float_decoder_select="mpegaudio"
2422 mp3on4_decoder_select="mpegaudio"
2423 mp3on4float_decoder_select="mpegaudio"
2424 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2425 mpc8_decoder_select="mpegaudiodsp"
2426 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2427 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2428 mpegvideo_decoder_select="mpegvideo"
2429 mpeg1video_decoder_select="mpegvideo"
2430 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2431 mpeg2video_decoder_select="mpegvideo"
2432 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2433 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2434 mpeg4_encoder_select="h263_encoder"
2435 msa1_decoder_select="mss34dsp"
2436 msmpeg4v1_decoder_select="h263_decoder"
2437 msmpeg4v2_decoder_select="h263_decoder"
2438 msmpeg4v2_encoder_select="h263_encoder"
2439 msmpeg4v3_decoder_select="h263_decoder"
2440 msmpeg4v3_encoder_select="h263_encoder"
2441 mss2_decoder_select="vc1_decoder mpegvideo"
2442 mts2_decoder_select="mss34dsp"
2443 mxpeg_decoder_select="mjpeg_decoder"
2444 nellymoser_decoder_select="mdct sinewin"
2445 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2446 nuv_decoder_select="idctdsp lzo"
2447 on2avc_decoder_select="mdct"
2448 opus_decoder_deps="swresample"
2449 opus_decoder_select="imdct15"
2450 png_decoder_select="zlib"
2451 png_encoder_select="huffyuvencdsp zlib"
2452 prores_decoder_select="blockdsp idctdsp"
2453 prores_encoder_select="fdctdsp"
2454 qcelp_decoder_select="lsp"
2455 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2456 ra_144_decoder_select="audiodsp"
2457 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2458 ralf_decoder_select="golomb"
2459 rawvideo_decoder_select="bswapdsp"
2460 rscc_decoder_select="zlib"
2461 rtjpeg_decoder_select="me_cmp"
2462 rv10_decoder_select="h263_decoder"
2463 rv10_encoder_select="h263_encoder"
2464 rv20_decoder_select="h263_decoder"
2465 rv20_encoder_select="h263_encoder"
2466 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2467 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2468 screenpresso_decoder_select="zlib"
2469 shorten_decoder_select="golomb"
2470 sipr_decoder_select="lsp"
2471 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2472 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2473 sonic_decoder_select="golomb rangecoder"
2474 sonic_encoder_select="golomb rangecoder"
2475 sonic_ls_encoder_select="golomb rangecoder"
2476 sp5x_decoder_select="mjpeg_decoder"
2477 svq1_decoder_select="hpeldsp"
2478 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2479 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2480 svq3_decoder_suggest="zlib"
2481 tak_decoder_select="audiodsp"
2482 tdsc_decoder_select="zlib mjpeg_decoder"
2483 theora_decoder_select="vp3_decoder"
2484 thp_decoder_select="mjpeg_decoder"
2485 tiff_decoder_suggest="zlib lzma"
2486 tiff_encoder_suggest="zlib"
2487 truehd_decoder_select="mlp_parser"
2488 truemotion2_decoder_select="bswapdsp"
2489 truespeech_decoder_select="bswapdsp"
2490 tscc_decoder_select="zlib"
2491 twinvq_decoder_select="mdct lsp sinewin"
2492 txd_decoder_select="texturedsp"
2493 utvideo_decoder_select="bswapdsp"
2494 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2495 vble_decoder_select="huffyuvdsp"
2496 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2497 vc1_qsv_decoder_deps="libmfx"
2498 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2499 vc1image_decoder_select="vc1_decoder"
2500 vorbis_decoder_select="mdct"
2501 vorbis_encoder_select="mdct"
2502 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2503 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2504 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2505 vp6a_decoder_select="vp6_decoder"
2506 vp6f_decoder_select="vp6_decoder"
2507 vp7_decoder_select="h264pred videodsp vp8dsp"
2508 vp8_decoder_select="h264pred videodsp vp8dsp"
2509 vp9_decoder_select="videodsp vp9_parser"
2510 webp_decoder_select="vp8_decoder exif"
2511 wmalossless_decoder_select="llauddsp"
2512 wmapro_decoder_select="mdct sinewin wma_freqs"
2513 wmav1_decoder_select="mdct sinewin wma_freqs"
2514 wmav1_encoder_select="mdct sinewin wma_freqs"
2515 wmav2_decoder_select="mdct sinewin wma_freqs"
2516 wmav2_encoder_select="mdct sinewin wma_freqs"
2517 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2518 wmv1_decoder_select="h263_decoder"
2519 wmv1_encoder_select="h263_encoder"
2520 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2521 wmv2_encoder_select="h263_encoder wmv2dsp"
2522 wmv3_decoder_select="vc1_decoder"
2523 wmv3image_decoder_select="wmv3_decoder"
2524 xma1_decoder_select="wmapro_decoder"
2525 xma2_decoder_select="wmapro_decoder"
2526 zerocodec_decoder_select="zlib"
2527 zlib_decoder_select="zlib"
2528 zlib_encoder_select="zlib"
2529 zmbv_decoder_select="zlib"
2530 zmbv_encoder_select="zlib"
2531
2532 # platform codecs
2533 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2534 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2535
2536 # hardware accelerators
2537 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2538 cuvid_deps="cuda"
2539 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2540 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2541 vaapi_deps="va_va_h"
2542 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2543 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2544 vda_deps="vda_framework pthreads"
2545 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2546 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2547 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2548 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2549 xvmc_deps="X11_extensions_XvMClib_h"
2550
2551 h263_vaapi_hwaccel_deps="vaapi"
2552 h263_vaapi_hwaccel_select="h263_decoder"
2553 h263_videotoolbox_hwaccel_deps="videotoolbox"
2554 h263_videotoolbox_hwaccel_select="h263_decoder"
2555 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2556 h264_cuvid_hwaccel_deps="cuda cuvid CUVIDH264PICPARAMS"
2557 h264_d3d11va_hwaccel_deps="d3d11va"
2558 h264_d3d11va_hwaccel_select="h264_decoder"
2559 h264_dxva2_hwaccel_deps="dxva2"
2560 h264_dxva2_hwaccel_select="h264_decoder"
2561 h264_mediacodec_decoder_deps="mediacodec"
2562 h264_mediacodec_hwaccel_deps="mediacodec"
2563 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2564 h264_mmal_decoder_deps="mmal"
2565 h264_mmal_decoder_select="mmal"
2566 h264_mmal_hwaccel_deps="mmal"
2567 h264_omx_encoder_deps="omx"
2568 h264_qsv_hwaccel_deps="libmfx"
2569 h264_vaapi_hwaccel_deps="vaapi"
2570 h264_vaapi_hwaccel_select="h264_decoder"
2571 h264_vda_decoder_deps="vda"
2572 h264_vda_decoder_select="h264_decoder"
2573 h264_vda_hwaccel_deps="vda"
2574 h264_vda_hwaccel_select="h264_decoder"
2575 h264_vda_old_hwaccel_deps="vda"
2576 h264_vda_old_hwaccel_select="h264_decoder"
2577 h264_vdpau_decoder_deps="vdpau"
2578 h264_vdpau_decoder_select="h264_decoder"
2579 h264_vdpau_hwaccel_deps="vdpau"
2580 h264_vdpau_hwaccel_select="h264_decoder"
2581 h264_videotoolbox_hwaccel_deps="videotoolbox"
2582 h264_videotoolbox_hwaccel_select="h264_decoder"
2583 hevc_cuvid_hwaccel_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2584 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2585 hevc_d3d11va_hwaccel_select="hevc_decoder"
2586 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2587 hevc_dxva2_hwaccel_select="hevc_decoder"
2588 hevc_qsv_hwaccel_deps="libmfx"
2589 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2590 hevc_vaapi_hwaccel_select="hevc_decoder"
2591 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2592 hevc_vdpau_hwaccel_select="hevc_decoder"
2593 mpeg_vdpau_decoder_deps="vdpau"
2594 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2595 mpeg_xvmc_hwaccel_deps="xvmc"
2596 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2597 mpeg1_vdpau_decoder_deps="vdpau"
2598 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2599 mpeg1_vdpau_hwaccel_deps="vdpau"
2600 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2601 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2602 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2603 mpeg1_xvmc_hwaccel_deps="xvmc"
2604 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2605 mpeg2_crystalhd_decoder_select="crystalhd"
2606 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2607 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2608 mpeg2_dxva2_hwaccel_deps="dxva2"
2609 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2610 mpeg2_mmal_decoder_deps="mmal"
2611 mpeg2_mmal_decoder_select="mmal"
2612 mpeg2_mmal_hwaccel_deps="mmal"
2613 mpeg2_qsv_hwaccel_deps="libmfx"
2614 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2615 mpeg2_vaapi_hwaccel_deps="vaapi"
2616 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2617 mpeg2_vdpau_hwaccel_deps="vdpau"
2618 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2619 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2620 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2621 mpeg2_xvmc_hwaccel_deps="xvmc"
2622 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2623 mpeg4_crystalhd_decoder_select="crystalhd"
2624 mpeg4_mmal_decoder_deps="mmal"
2625 mpeg4_mmal_decoder_select="mmal"
2626 mpeg4_mmal_hwaccel_deps="mmal"
2627 mpeg4_omx_encoder_deps="omx"
2628 mpeg4_vaapi_hwaccel_deps="vaapi"
2629 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2630 mpeg4_vdpau_decoder_deps="vdpau"
2631 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2632 mpeg4_vdpau_hwaccel_deps="vdpau"
2633 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2634 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2635 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2636 msmpeg4_crystalhd_decoder_select="crystalhd"
2637 vc1_crystalhd_decoder_select="crystalhd"
2638 vc1_cuvid_hwaccel_deps="cuda cuvid CUVIDVC1PICPARAMS"
2639 vc1_d3d11va_hwaccel_deps="d3d11va"
2640 vc1_d3d11va_hwaccel_select="vc1_decoder"
2641 vc1_dxva2_hwaccel_deps="dxva2"
2642 vc1_dxva2_hwaccel_select="vc1_decoder"
2643 vc1_mmal_decoder_deps="mmal"
2644 vc1_mmal_decoder_select="mmal"
2645 vc1_mmal_hwaccel_deps="mmal"
2646 vc1_qsv_hwaccel_deps="libmfx"
2647 vc1_qsv_hwaccel_select="qsvdec_vc1"
2648 vc1_vaapi_hwaccel_deps="vaapi"
2649 vc1_vaapi_hwaccel_select="vc1_decoder"
2650 vc1_vdpau_decoder_deps="vdpau"
2651 vc1_vdpau_decoder_select="vc1_decoder"
2652 vc1_vdpau_hwaccel_deps="vdpau"
2653 vc1_vdpau_hwaccel_select="vc1_decoder"
2654 vp8_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2655 vp9_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2656 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2657 vp9_d3d11va_hwaccel_select="vp9_decoder"
2658 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2659 vp9_dxva2_hwaccel_select="vp9_decoder"
2660 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2661 vp9_vaapi_hwaccel_select="vp9_decoder"
2662 wmv3_crystalhd_decoder_select="crystalhd"
2663 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2664 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2665 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2666 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2667 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2668
2669 # hardware-accelerated codecs
2670 omx_deps="dlopen pthreads"
2671 omx_extralibs='$ldl'
2672 qsvdec_select="qsv"
2673 qsvenc_select="qsv"
2674 vaapi_encode_deps="vaapi"
2675
2676 hwupload_cuda_filter_deps="cuda"
2677 scale_npp_filter_deps="cuda libnpp"
2678
2679 nvenc_encoder_deps="nvenc"
2680 h264_cuvid_decoder_deps="cuda cuvid CUVIDH264PICPARAMS"
2681 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2682 h264_nvenc_encoder_deps="nvenc"
2683 h264_qsv_decoder_deps="libmfx"
2684 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2685 h264_qsv_encoder_deps="libmfx"
2686 h264_qsv_encoder_select="qsvenc"
2687 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2688 h264_vaapi_encoder_select="vaapi_encode golomb"
2689
2690 hevc_cuvid_decoder_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2691 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2692 hevc_nvenc_encoder_deps="nvenc"
2693 hevc_qsv_decoder_deps="libmfx"
2694 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2695 hevc_qsv_encoder_deps="libmfx"
2696 hevc_qsv_encoder_select="qsvenc"
2697 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2698 hevc_vaapi_encoder_select="vaapi_encode golomb"
2699 mpeg2_qsv_decoder_deps="libmfx"
2700 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2701 mpeg2_qsv_encoder_deps="libmfx"
2702 mpeg2_qsv_encoder_select="qsvenc"
2703 nvenc_h264_encoder_deps="nvenc"
2704 nvenc_hevc_encoder_deps="nvenc"
2705
2706 vc1_cuvid_decoder_deps="cuda cuvid CUVIDVC1PICPARAMS"
2707 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2708 vp8_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2709 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2710 vp9_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2711 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2712
2713 # parsers
2714 h264_parser_select="golomb h264dsp"
2715 hevc_parser_select="golomb"
2716 mpegvideo_parser_select="mpegvideo"
2717 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2718 vc1_parser_select="vc1dsp"
2719
2720 # bitstream_filters
2721 mjpeg2jpeg_bsf_select="jpegtables"
2722
2723 # external libraries
2724 aac_at_decoder_deps="audiotoolbox"
2725 ac3_at_decoder_deps="audiotoolbox"
2726 ac3_at_decoder_select="ac3_parser"
2727 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2728 alac_at_decoder_deps="audiotoolbox"
2729 amr_nb_at_decoder_deps="audiotoolbox"
2730 eac3_at_decoder_deps="audiotoolbox"
2731 eac3_at_decoder_select="ac3_parser"
2732 gsm_ms_at_decoder_deps="audiotoolbox"
2733 ilbc_at_decoder_deps="audiotoolbox"
2734 mp1_at_decoder_deps="audiotoolbox"
2735 mp2_at_decoder_deps="audiotoolbox"
2736 mp3_at_decoder_deps="audiotoolbox"
2737 pcm_alaw_at_decoder_deps="audiotoolbox"
2738 pcm_mulaw_at_decoder_deps="audiotoolbox"
2739 qdmc_at_decoder_deps="audiotoolbox"
2740 qdm2_at_decoder_deps="audiotoolbox"
2741 aac_at_encoder_deps="audiotoolbox"
2742 aac_at_encoder_select="audio_frame_queue"
2743 alac_at_encoder_deps="audiotoolbox"
2744 alac_at_encoder_select="audio_frame_queue"
2745 ilbc_at_encoder_deps="audiotoolbox"
2746 ilbc_at_encoder_select="audio_frame_queue"
2747 pcm_alaw_at_encoder_deps="audiotoolbox"
2748 pcm_alaw_at_encoder_select="audio_frame_queue"
2749 pcm_mulaw_at_encoder_deps="audiotoolbox"
2750 pcm_mulaw_at_encoder_select="audio_frame_queue"
2751 chromaprint_muxer_deps="chromaprint"
2752 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2753 libcelt_decoder_deps="libcelt"
2754 libfaac_encoder_deps="libfaac"
2755 libfaac_encoder_select="audio_frame_queue"
2756 libfdk_aac_decoder_deps="libfdk_aac"
2757 libfdk_aac_encoder_deps="libfdk_aac"
2758 libfdk_aac_encoder_select="audio_frame_queue"
2759 libgme_demuxer_deps="libgme"
2760 libgsm_decoder_deps="libgsm"
2761 libgsm_encoder_deps="libgsm"
2762 libgsm_ms_decoder_deps="libgsm"
2763 libgsm_ms_encoder_deps="libgsm"
2764 libilbc_decoder_deps="libilbc"
2765 libilbc_encoder_deps="libilbc"
2766 libkvazaar_encoder_deps="libkvazaar"
2767 libmodplug_demuxer_deps="libmodplug"
2768 libmp3lame_encoder_deps="libmp3lame"
2769 libmp3lame_encoder_select="audio_frame_queue"
2770 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2771 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2772 libopencore_amrnb_encoder_select="audio_frame_queue"
2773 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2774 libopenh264_decoder_deps="libopenh264"
2775 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2776 libopenh264_encoder_deps="libopenh264"
2777 libopenjpeg_decoder_deps="libopenjpeg"
2778 libopenjpeg_encoder_deps="libopenjpeg"
2779 libopenmpt_demuxer_deps="libopenmpt"
2780 libopus_decoder_deps="libopus"
2781 libopus_encoder_deps="libopus"
2782 libopus_encoder_select="audio_frame_queue"
2783 libschroedinger_decoder_deps="libschroedinger"
2784 libschroedinger_encoder_deps="libschroedinger"
2785 libshine_encoder_deps="libshine"
2786 libshine_encoder_select="audio_frame_queue"
2787 libspeex_decoder_deps="libspeex"
2788 libspeex_encoder_deps="libspeex"
2789 libspeex_encoder_select="audio_frame_queue"
2790 libtheora_encoder_deps="libtheora"
2791 libtwolame_encoder_deps="libtwolame"
2792 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2793 libvorbis_decoder_deps="libvorbis"
2794 libvorbis_encoder_deps="libvorbis"
2795 libvorbis_encoder_select="audio_frame_queue"
2796 libvpx_vp8_decoder_deps="libvpx"
2797 libvpx_vp8_encoder_deps="libvpx"
2798 libvpx_vp9_decoder_deps="libvpx"
2799 libvpx_vp9_encoder_deps="libvpx"
2800 libwavpack_encoder_deps="libwavpack"
2801 libwebp_encoder_deps="libwebp"
2802 libwebp_anim_encoder_deps="libwebp"
2803 libx262_encoder_deps="libx262"
2804 libx264_encoder_deps="libx264"
2805 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2806 libx264rgb_encoder_select="libx264_encoder"
2807 libx265_encoder_deps="libx265"
2808 libxavs_encoder_deps="libxavs"
2809 libxvid_encoder_deps="libxvid"
2810 libzvbi_teletext_decoder_deps="libzvbi"
2811 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2812 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2813 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2814 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2815 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2816
2817 # demuxers / muxers
2818 ac3_demuxer_select="ac3_parser"
2819 asf_demuxer_select="riffdec"
2820 asf_o_demuxer_select="riffdec"
2821 asf_muxer_select="riffenc"
2822 asf_stream_muxer_select="asf_muxer"
2823 avi_demuxer_select="iso_media riffdec exif"
2824 avi_muxer_select="riffenc"
2825 avisynth_demuxer_deps="avisynth"
2826 avisynth_demuxer_select="riffdec"
2827 caf_demuxer_select="iso_media riffdec"
2828 dash_muxer_select="mp4_muxer"
2829 dirac_demuxer_select="dirac_parser"
2830 dts_demuxer_select="dca_parser"
2831 dtshd_demuxer_select="dca_parser"
2832 dv_demuxer_select="dvprofile"
2833 dv_muxer_select="dvprofile"
2834 dxa_demuxer_select="riffdec"
2835 eac3_demuxer_select="ac3_parser"
2836 f4v_muxer_select="mov_muxer"
2837 fifo_muxer_deps="pthreads"
2838 flac_demuxer_select="flac_parser"
2839 hds_muxer_select="flv_muxer"
2840 hls_muxer_select="mpegts_muxer"
2841 image2_alias_pix_demuxer_select="image2_demuxer"
2842 image2_brender_pix_demuxer_select="image2_demuxer"
2843 ipod_muxer_select="mov_muxer"
2844 ismv_muxer_select="mov_muxer"
2845 libnut_demuxer_deps="libnut"
2846 libnut_muxer_deps="libnut"
2847 matroska_audio_muxer_select="matroska_muxer"
2848 matroska_demuxer_select="iso_media riffdec"
2849 matroska_demuxer_suggest="bzlib lzo zlib"
2850 matroska_muxer_select="iso_media riffenc"
2851 mmf_muxer_select="riffenc"
2852 mov_demuxer_select="iso_media riffdec"
2853 mov_demuxer_suggest="zlib"
2854 mov_muxer_select="iso_media riffenc rtpenc_chain"
2855 mp3_demuxer_select="mpegaudio_parser"
2856 mp4_muxer_select="mov_muxer"
2857 mpegts_demuxer_select="iso_media"
2858 mpegts_muxer_select="adts_muxer latm_muxer"
2859 mpegtsraw_demuxer_select="mpegts_demuxer"
2860 mxf_d10_muxer_select="mxf_muxer"
2861 mxf_opatom_muxer_select="mxf_muxer"
2862 nut_muxer_select="riffenc"
2863 nuv_demuxer_select="riffdec"
2864 oga_muxer_select="ogg_muxer"
2865 ogg_demuxer_select="dirac_parse"
2866 ogv_muxer_select="ogg_muxer"
2867 opus_muxer_select="ogg_muxer"
2868 psp_muxer_select="mov_muxer"
2869 rtp_demuxer_select="sdp_demuxer"
2870 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2871 rtsp_demuxer_select="http_protocol rtpdec"
2872 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2873 sap_demuxer_select="sdp_demuxer"
2874 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2875 sdp_demuxer_select="rtpdec"
2876 smoothstreaming_muxer_select="ismv_muxer"
2877 spdif_muxer_select="aac_parser"
2878 spx_muxer_select="ogg_muxer"
2879 swf_demuxer_suggest="zlib"
2880 tak_demuxer_select="tak_parser"
2881 tg2_muxer_select="mov_muxer"
2882 tgp_muxer_select="mov_muxer"
2883 vobsub_demuxer_select="mpegps_demuxer"
2884 w64_demuxer_select="wav_demuxer"
2885 w64_muxer_select="wav_muxer"
2886 wav_demuxer_select="riffdec"
2887 wav_muxer_select="riffenc"
2888 webm_muxer_select="iso_media riffenc"
2889 webm_dash_manifest_demuxer_select="matroska_demuxer"
2890 wtv_demuxer_select="mpegts_demuxer riffdec"
2891 wtv_muxer_select="mpegts_muxer riffenc"
2892 xmv_demuxer_select="riffdec"
2893 xwma_demuxer_select="riffdec"
2894
2895 # indevs / outdevs
2896 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2897 alsa_outdev_deps="alsa_asoundlib_h"
2898 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2899 avfoundation_indev_select="avfoundation"
2900 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2901 caca_outdev_deps="libcaca"
2902 decklink_indev_deps="decklink pthreads"
2903 decklink_indev_extralibs="-lstdc++"
2904 decklink_outdev_deps="decklink pthreads"
2905 decklink_outdev_extralibs="-lstdc++"
2906 dshow_indev_deps="IBaseFilter"
2907 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2908 dv1394_indev_deps="dv1394"
2909 dv1394_indev_select="dv_demuxer"
2910 fbdev_indev_deps="linux_fb_h"
2911 fbdev_outdev_deps="linux_fb_h"
2912 gdigrab_indev_deps="CreateDIBSection"
2913 gdigrab_indev_extralibs="-lgdi32"
2914 gdigrab_indev_select="bmp_decoder"
2915 iec61883_indev_deps="libiec61883"
2916 jack_indev_deps="jack_jack_h"
2917 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2918 lavfi_indev_deps="avfilter"
2919 libcdio_indev_deps="libcdio"
2920 libdc1394_indev_deps="libdc1394"
2921 libv4l2_indev_deps="libv4l2"
2922 openal_indev_deps="openal"
2923 opengl_outdev_deps="opengl"
2924 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2925 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2926 pulse_indev_deps="libpulse"
2927 pulse_outdev_deps="libpulse"
2928 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2929 qtkit_indev_select="qtkit"
2930 sdl_outdev_deps="sdl"
2931 sndio_indev_deps="sndio_h"
2932 sndio_outdev_deps="sndio_h"
2933 v4l_indev_deps="linux_videodev_h"
2934 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2935 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2936 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2937 vfwcap_indev_extralibs="-lavicap32"
2938 x11grab_indev_deps="x11grab"
2939 x11grab_xcb_indev_deps="libxcb"
2940 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2941 xv_outdev_extralibs="-lXv -lX11 -lXext"
2942
2943 # protocols
2944 async_protocol_deps="threads"
2945 bluray_protocol_deps="libbluray"
2946 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2947 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2948 ffrtmpcrypt_protocol_select="tcp_protocol"
2949 ffrtmphttp_protocol_deps="!librtmp_protocol"
2950 ffrtmphttp_protocol_select="http_protocol"
2951 ftp_protocol_select="tcp_protocol"
2952 gopher_protocol_select="network"
2953 http_protocol_select="tcp_protocol"
2954 httpproxy_protocol_select="tcp_protocol"
2955 https_protocol_select="tls_protocol"
2956 icecast_protocol_select="http_protocol"
2957 librtmp_protocol_deps="librtmp"
2958 librtmpe_protocol_deps="librtmp"
2959 librtmps_protocol_deps="librtmp"
2960 librtmpt_protocol_deps="librtmp"
2961 librtmpte_protocol_deps="librtmp"
2962 libsmbclient_protocol_deps="libsmbclient gplv3"
2963 libssh_protocol_deps="libssh"
2964 mmsh_protocol_select="http_protocol"
2965 mmst_protocol_select="network"
2966 rtmp_protocol_deps="!librtmp_protocol"
2967 rtmp_protocol_select="tcp_protocol"
2968 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2969 rtmps_protocol_deps="!librtmp_protocol"
2970 rtmps_protocol_select="tls_protocol"
2971 rtmpt_protocol_select="ffrtmphttp_protocol"
2972 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2973 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2974 rtp_protocol_select="udp_protocol"
2975 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2976 sctp_protocol_select="network"
2977 srtp_protocol_select="rtp_protocol srtp"
2978 tcp_protocol_select="network"
2979 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2980 tls_gnutls_protocol_select="tcp_protocol"
2981 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2982 tls_openssl_protocol_select="tcp_protocol"
2983 tls_schannel_protocol_deps="schannel"
2984 tls_schannel_protocol_select="tcp_protocol"
2985 tls_securetransport_protocol_deps="securetransport"
2986 tls_securetransport_protocol_select="tcp_protocol"
2987 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2988 udp_protocol_select="network"
2989 udplite_protocol_select="network"
2990 unix_protocol_deps="sys_un_h"
2991 unix_protocol_select="network"
2992
2993 # filters
2994 afftfilt_filter_deps="avcodec"
2995 afftfilt_filter_select="fft"
2996 amovie_filter_deps="avcodec avformat"
2997 aresample_filter_deps="swresample"
2998 ass_filter_deps="libass"
2999 asyncts_filter_deps="avresample"
3000 atempo_filter_deps="avcodec"
3001 atempo_filter_select="rdft"
3002 azmq_filter_deps="libzmq"
3003 blackframe_filter_deps="gpl"
3004 boxblur_filter_deps="gpl"
3005 bs2b_filter_deps="libbs2b"
3006 colormatrix_filter_deps="gpl"
3007 cover_rect_filter_deps="avcodec avformat gpl"
3008 cropdetect_filter_deps="gpl"
3009 delogo_filter_deps="gpl"
3010 deshake_filter_select="pixelutils"
3011 drawtext_filter_deps="libfreetype"
3012 ebur128_filter_deps="gpl"
3013 eq_filter_deps="gpl"
3014 fftfilt_filter_deps="avcodec"
3015 fftfilt_filter_select="rdft"
3016 find_rect_filter_deps="avcodec avformat gpl"
3017 firequalizer_filter_deps="avcodec"
3018 firequalizer_filter_select="rdft"
3019 flite_filter_deps="libflite"
3020 framerate_filter_select="pixelutils"
3021 frei0r_filter_deps="frei0r dlopen"
3022 frei0r_src_filter_deps="frei0r dlopen"
3023 fspp_filter_deps="gpl"
3024 geq_filter_deps="gpl"
3025 histeq_filter_deps="gpl"
3026 hqdn3d_filter_deps="gpl"
3027 interlace_filter_deps="gpl"
3028 kerndeint_filter_deps="gpl"
3029 ladspa_filter_deps="ladspa dlopen"
3030 loudnorm_filter_deps="libebur128"
3031 mcdeint_filter_deps="avcodec gpl"
3032 movie_filter_deps="avcodec avformat"
3033 mpdecimate_filter_deps="gpl"
3034 mpdecimate_filter_select="pixelutils"
3035 mptestsrc_filter_deps="gpl"
3036 negate_filter_deps="lut_filter"
3037 nnedi_filter_deps="gpl"
3038 ocr_filter_deps="libtesseract"
3039 ocv_filter_deps="libopencv"
3040 owdenoise_filter_deps="gpl"
3041 pan_filter_deps="swresample"
3042 perspective_filter_deps="gpl"
3043 phase_filter_deps="gpl"
3044 pp7_filter_deps="gpl"
3045 pp_filter_deps="gpl postproc"
3046 pullup_filter_deps="gpl"
3047 removelogo_filter_deps="avcodec avformat swscale"
3048 repeatfields_filter_deps="gpl"
3049 resample_filter_deps="avresample"
3050 rubberband_filter_deps="librubberband"
3051 sab_filter_deps="gpl swscale"
3052 scale2ref_filter_deps="swscale"
3053 scale_filter_deps="swscale"
3054 select_filter_select="pixelutils"
3055 showcqt_filter_deps="avcodec avformat swscale"
3056 showcqt_filter_select="fft"
3057 showfreqs_filter_deps="avcodec"
3058 showfreqs_filter_select="fft"
3059 showspectrum_filter_deps="avcodec"
3060 showspectrum_filter_select="fft"
3061 showspectrumpic_filter_deps="avcodec"
3062 showspectrumpic_filter_select="fft"
3063 smartblur_filter_deps="gpl swscale"
3064 sofalizer_filter_deps="netcdf avcodec"
3065 sofalizer_filter_select="fft"
3066 spectrumsynth_filter_deps="avcodec"
3067 spectrumsynth_filter_select="fft"
3068 spp_filter_deps="gpl avcodec"
3069 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3070 stereo3d_filter_deps="gpl"
3071 subtitles_filter_deps="avformat avcodec libass"
3072 super2xsai_filter_deps="gpl"
3073 pixfmts_super2xsai_test_deps="super2xsai_filter"
3074 tinterlace_filter_deps="gpl"
3075 tinterlace_merge_test_deps="tinterlace_filter"
3076 tinterlace_pad_test_deps="tinterlace_filter"
3077 uspp_filter_deps="gpl avcodec"
3078 vaguedenoiser_filter_deps="gpl"
3079 vidstabdetect_filter_deps="libvidstab"
3080 vidstabtransform_filter_deps="libvidstab"
3081 zmq_filter_deps="libzmq"
3082 zoompan_filter_deps="swscale"
3083 zscale_filter_deps="libzimg"
3084 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3085
3086 # examples
3087 avcodec_example_deps="avcodec avutil"
3088 avio_dir_cmd="avformat avutil"
3089 avio_reading="avformat avcodec avutil"
3090 decoding_encoding_example_deps="avcodec avformat avutil"
3091 demuxing_decoding_example_deps="avcodec avformat avutil"
3092 extract_mvs_example_deps="avcodec avformat avutil"
3093 filter_audio_example_deps="avfilter avutil"
3094 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3095 filtering_video_example_deps="avfilter avcodec avformat avutil"
3096 metadata_example_deps="avformat avutil"
3097 muxing_example_deps="avcodec avformat avutil swscale"
3098 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3099 remuxing_example_deps="avcodec avformat avutil"
3100 resampling_audio_example_deps="avutil swresample"
3101 scaling_video_example_deps="avutil swscale"
3102 transcode_aac_example_deps="avcodec avformat swresample"
3103 transcoding_example_deps="avfilter avcodec avformat avutil"
3104
3105 # libraries, in linking order
3106 avcodec_deps="avutil"
3107 avdevice_deps="avformat avcodec avutil"
3108 avfilter_deps="avutil"
3109 avformat_deps="avcodec avutil"
3110 avresample_deps="avutil"
3111 postproc_deps="avutil gpl"
3112 swresample_deps="avutil"
3113 swscale_deps="avutil"
3114
3115 # programs
3116 ffmpeg_deps="avcodec avfilter avformat swresample"
3117 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3118                null_filter
3119                setpts_filter trim_filter"
3120 ffplay_deps="avcodec avformat swscale swresample sdl"
3121 ffplay_libs='$sdl_libs'
3122 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3123 ffprobe_deps="avcodec avformat"
3124 ffserver_deps="avformat fork sarestart"
3125 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3126
3127 # documentation
3128 podpages_deps="perl"
3129 manpages_deps="perl pod2man"
3130 htmlpages_deps="perl"
3131 htmlpages_deps_any="makeinfo_html texi2html"
3132 txtpages_deps="perl makeinfo"
3133 doc_deps_any="manpages htmlpages podpages txtpages"
3134
3135 # default parameters
3136
3137 logfile="config.log"
3138
3139 # installation paths
3140 prefix_default="/usr/local"
3141 bindir_default='${prefix}/bin'
3142 datadir_default='${prefix}/share/ffmpeg'
3143 docdir_default='${prefix}/share/doc/ffmpeg'
3144 incdir_default='${prefix}/include'
3145 libdir_default='${prefix}/lib'
3146 mandir_default='${prefix}/share/man'
3147
3148 # toolchain
3149 ar_default="ar"
3150 cc_default="gcc"
3151 cxx_default="g++"
3152 host_cc_default="gcc"
3153 cp_f="cp -f"
3154 doxygen_default="doxygen"
3155 install="install"
3156 ln_s_default="ln -s -f"
3157 nm_default="nm -g"
3158 objformat="elf"
3159 pkg_config_default=pkg-config
3160 ranlib_default="ranlib"
3161 strip_default="strip"
3162 version_script='--version-script'
3163 yasmexe_default="yasm"
3164 windres_default="windres"
3165
3166 # OS
3167 target_os_default=$(tolower $(uname -s))
3168 host_os=$target_os_default
3169
3170 # machine
3171 if test "$target_os_default" = aix; then
3172     arch_default=$(uname -p)
3173     strip_default="strip -X32_64"
3174 else
3175     arch_default=$(uname -m)
3176 fi
3177 cpu="generic"
3178 intrinsics="none"
3179
3180 # configurable options
3181 enable $PROGRAM_LIST
3182 enable $DOCUMENT_LIST
3183 enable $EXAMPLE_LIST
3184 enable $(filter_out avresample $LIBRARY_LIST)
3185 enable stripping
3186
3187 enable asm
3188 enable debug
3189 enable doc
3190 enable faan faandct faanidct
3191 enable optimizations
3192 enable runtime_cpudetect
3193 enable safe_bitstream_reader
3194 enable static
3195 enable swscale_alpha
3196 enable valgrind_backtrace
3197
3198 sws_max_filter_size_default=256
3199 set_default sws_max_filter_size
3200
3201 # Enable platform codecs by default.
3202 enable audiotoolbox
3203
3204 # Enable hwaccels by default.
3205 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3206 enable xlib
3207
3208 enable vda_framework videotoolbox videotoolbox_encoder
3209
3210 # build settings
3211 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3212 LIBPREF="lib"
3213 LIBSUF=".a"
3214 FULLNAME='$(NAME)$(BUILDSUF)'
3215 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3216 SLIBPREF="lib"
3217 SLIBSUF=".so"
3218 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3219 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3220 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3221 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3222 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3223 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3224 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3225
3226 asflags_filter=echo
3227 cflags_filter=echo
3228 ldflags_filter=echo
3229
3230 AS_C='-c'
3231 AS_O='-o $@'
3232 CC_C='-c'
3233 CC_E='-E -o $@'
3234 CC_O='-o $@'
3235 CXX_C='-c'
3236 CXX_O='-o $@'
3237 OBJCC_C='-c'
3238 OBJCC_E='-E -o $@'
3239 OBJCC_O='-o $@'
3240 LD_O='-o $@'
3241 LD_LIB='-l%'
3242 LD_PATH='-L'
3243 HOSTCC_C='-c'
3244 HOSTCC_E='-E -o $@'
3245 HOSTCC_O='-o $@'
3246 HOSTLD_O='-o $@'
3247
3248 host_libs='-lm'
3249 host_cflags_filter=echo
3250 host_ldflags_filter=echo
3251
3252 target_path='$(CURDIR)'
3253
3254 # since the object filename is not given with the -MM flag, the compiler
3255 # is only able to print the basename, and we must add the path ourselves
3256 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3257 DEPFLAGS='-MM'
3258
3259 # find source path
3260 if test -f configure; then
3261     source_path=.
3262 else
3263     source_path=$(cd $(dirname "$0"); pwd)
3264     case "$source_path" in
3265         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3266     esac
3267     test -e "$source_path/config.h" &&
3268         die "Out of tree builds are impossible with config.h in source dir."
3269 fi
3270
3271 for v in "$@"; do
3272     r=${v#*=}
3273     l=${v%"$r"}
3274     r=$(sh_quote "$r")
3275     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3276 done
3277
3278 find_things(){
3279     thing=$1
3280     pattern=$2
3281     file=$source_path/$3
3282     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3283 }
3284
3285 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3286 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3287 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3288 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3289 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3290 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3291 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3292 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3293 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3294
3295 find_things_extern(){
3296     thing=$1
3297     pattern=$2
3298     file=$source_path/$3
3299     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3300 }
3301
3302 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3303 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3304
3305 ALL_COMPONENTS="
3306     $BSF_LIST
3307     $DECODER_LIST
3308     $DEMUXER_LIST
3309     $ENCODER_LIST
3310     $FILTER_LIST
3311     $HWACCEL_LIST
3312     $INDEV_LIST
3313     $MUXER_LIST
3314     $OUTDEV_LIST
3315     $PARSER_LIST
3316     $PROTOCOL_LIST
3317 "
3318
3319 for n in $COMPONENT_LIST; do
3320     v=$(toupper ${n%s})_LIST
3321     eval enable \$$v
3322     eval ${n}_if_any="\$$v"
3323 done
3324
3325 enable $ARCH_EXT_LIST
3326
3327 die_unknown(){
3328     echo "Unknown option \"$1\"."
3329     echo "See $0 --help for available options."
3330     exit 1
3331 }
3332
3333 print_in_columns() {
3334     cols=$(expr $ncols / 24)
3335     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3336 }
3337
3338 show_list() {
3339     suffix=_$1
3340     shift
3341     echo $* | sed s/$suffix//g | print_in_columns
3342     exit 0
3343 }
3344
3345 rand_list(){
3346     IFS=', '
3347     set -- $*
3348     unset IFS
3349     for thing; do
3350         comp=${thing%:*}
3351         prob=${thing#$comp}
3352         prob=${prob#:}
3353         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3354         echo "prob ${prob:-0.5}"
3355         printf '%s\n' $comp
3356     done
3357 }
3358
3359 do_random(){
3360     action=$1
3361     shift
3362     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3363     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3364 }
3365
3366 for opt do
3367     optval="${opt#*=}"
3368     case "$opt" in
3369         --extra-ldflags=*)
3370             add_ldflags $optval
3371         ;;
3372         --extra-ldexeflags=*)
3373             add_ldexeflags $optval
3374         ;;
3375         --extra-ldlibflags=*)
3376             add_ldlibflags $optval
3377         ;;
3378         --extra-libs=*)
3379             add_extralibs $optval
3380         ;;
3381         --disable-devices)
3382             disable $INDEV_LIST $OUTDEV_LIST
3383         ;;
3384         --enable-debug=*)
3385             debuglevel="$optval"
3386         ;;
3387         --disable-programs)
3388             disable $PROGRAM_LIST
3389         ;;
3390         --disable-everything)
3391             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3392         ;;
3393         --disable-all)
3394             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3395             disable $LIBRARY_LIST $PROGRAM_LIST doc
3396             enable avutil
3397         ;;
3398         --enable-random|--disable-random)
3399             action=${opt%%-random}
3400             do_random ${action#--} $COMPONENT_LIST
3401         ;;
3402         --enable-random=*|--disable-random=*)
3403             action=${opt%%-random=*}
3404             do_random ${action#--} $optval
3405         ;;
3406         --enable-*=*|--disable-*=*)
3407             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3408             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3409             eval list=\$$(toupper $thing)_LIST
3410             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3411             list=$(filter "$name" $list)
3412             [ "$list" = "" ] && warn "Option $opt did not match anything"
3413             $action $list
3414         ;;
3415         --enable-?*|--disable-?*)
3416             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3417             if is_in $option $COMPONENT_LIST; then
3418                 test $action = disable && action=unset
3419                 eval $action \$$(toupper ${option%s})_LIST
3420             elif is_in $option $CMDLINE_SELECT; then
3421                 $action $option
3422             else
3423                 die_unknown $opt
3424             fi
3425         ;;
3426         --list-*)
3427             NAME="${opt#--list-}"
3428             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3429             NAME=${NAME%s}
3430             eval show_list $NAME \$$(toupper $NAME)_LIST
3431         ;;
3432         --help|-h) show_help
3433         ;;
3434         --fatal-warnings) enable fatal_warnings
3435         ;;
3436         *)
3437             optname="${opt%%=*}"
3438             optname="${optname#--}"
3439             optname=$(echo "$optname" | sed 's/-/_/g')
3440             if is_in $optname $CMDLINE_SET; then
3441                 eval $optname='$optval'
3442             elif is_in $optname $CMDLINE_APPEND; then
3443                 append $optname "$optval"
3444             else
3445                 die_unknown $opt
3446             fi
3447         ;;
3448     esac
3449 done
3450
3451 for e in $env; do
3452     eval "export $e"
3453 done
3454
3455 disabled logging && logfile=/dev/null
3456
3457 # Disable all the library-specific components if the library itself
3458 # is disabled, see AVCODEC_LIST and following _LIST variables.
3459
3460 disable_components(){
3461     disabled ${1} && disable $(
3462         eval components="\$$(toupper ${1})_COMPONENTS"
3463         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3464     )
3465 }
3466
3467 map 'disable_components $v' $LIBRARY_LIST
3468
3469 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3470 set >> $logfile
3471
3472 test -n "$valgrind" && toolchain="valgrind-memcheck"
3473
3474 case "$toolchain" in
3475     *-asan)
3476         cc_default="${toolchain%-asan}"
3477         add_cflags  -fsanitize=address
3478         add_ldflags -fsanitize=address
3479     ;;
3480     *-msan)
3481         cc_default="${toolchain%-msan}"
3482         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3483         add_ldflags -fsanitize=memory
3484     ;;
3485     *-tsan)
3486         cc_default="${toolchain%-tsan}"
3487         add_cflags  -fsanitize=thread -pie
3488         add_ldflags -fsanitize=thread -pie
3489         case "$toolchain" in
3490             gcc-tsan)
3491                 add_cflags  -fPIC
3492                 add_ldflags -fPIC
3493                 ;;
3494         esac
3495     ;;
3496     *-usan)
3497         cc_default="${toolchain%-usan}"
3498         add_cflags  -fsanitize=undefined
3499         add_ldflags -fsanitize=undefined
3500     ;;
3501     valgrind-*)
3502         target_exec_default="valgrind"
3503         case "$toolchain" in
3504             valgrind-massif)
3505                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3506                 ;;
3507             valgrind-memcheck)
3508                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3509                 ;;
3510         esac
3511     ;;
3512     msvc)
3513         # Check whether the current MSVC version needs the C99 converter.
3514         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3515         # support enough of C99 to build ffmpeg. Default to the new
3516         # behaviour if the regexp was unable to match anything, since this
3517         # successfully parses the version number of existing supported
3518         # versions that require the converter (MSVC 2010 and 2012).
3519         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3520         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3521             cc_default="cl"
3522         else
3523             cc_default="c99wrap cl"
3524         fi
3525         ld_default="$source_path/compat/windows/mslink"
3526         nm_default="dumpbin -symbols"
3527         ar_default="lib"
3528         case "$arch" in
3529         arm*)
3530             as_default="armasm"
3531             ;;
3532         esac
3533         target_os_default="win32"
3534         # Use a relative path for TMPDIR. This makes sure all the
3535         # ffconf temp files are written with a relative path, avoiding
3536         # issues with msys/win32 path conversion for MSVC parameters
3537         # such as -Fo<file> or -out:<file>.
3538         TMPDIR=.
3539     ;;
3540     icl)
3541         cc_default="icl"
3542         ld_default="xilink"
3543         nm_default="dumpbin -symbols"
3544         ar_default="xilib"
3545         target_os_default="win32"
3546         TMPDIR=.
3547     ;;
3548     gcov)
3549         add_cflags  -fprofile-arcs -ftest-coverage
3550         add_ldflags -fprofile-arcs -ftest-coverage
3551     ;;
3552     llvm-cov)
3553         add_cflags -fprofile-arcs -ftest-coverage
3554         add_ldflags --coverage
3555     ;;
3556     hardened)
3557         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3558         add_cflags   -fno-strict-overflow -fstack-protector-all
3559         add_ldflags  -Wl,-z,relro -Wl,-z,now
3560     ;;
3561     ?*)
3562         die "Unknown toolchain $toolchain"
3563     ;;
3564 esac
3565
3566 test -n "$cross_prefix" && enable cross_compile
3567
3568 if enabled cross_compile; then
3569     test -n "$arch" && test -n "$target_os" ||
3570         die "Must specify target arch and OS when cross-compiling"
3571 fi
3572
3573 ar_default="${cross_prefix}${ar_default}"
3574 cc_default="${cross_prefix}${cc_default}"
3575 cxx_default="${cross_prefix}${cxx_default}"
3576 nm_default="${cross_prefix}${nm_default}"
3577 pkg_config_default="${cross_prefix}${pkg_config_default}"
3578 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3579     ranlib_default="${cross_prefix}${ranlib_default} -D"
3580 else
3581     ranlib_default="${cross_prefix}${ranlib_default}"
3582 fi
3583 strip_default="${cross_prefix}${strip_default}"
3584 windres_default="${cross_prefix}${windres_default}"
3585
3586 sysinclude_default="${sysroot}/usr/include"
3587
3588 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3589     target_exec target_os yasmexe
3590 enabled cross_compile || host_cc_default=$cc
3591 set_default host_cc
3592
3593 pkg_config_fail_message=""
3594 if ! $pkg_config --version >/dev/null 2>&1; then
3595     warn "$pkg_config not found, library detection may fail."
3596     pkg_config=false
3597 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3598     pkg_config_fail_message="
3599 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3600 fi
3601
3602 if test $doxygen != $doxygen_default && \
3603   ! $doxygen --version >/dev/null 2>&1; then
3604     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3605 fi
3606
3607 exesuf() {
3608     case $1 in
3609         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3610     esac
3611 }
3612
3613 EXESUF=$(exesuf $target_os)
3614 HOSTEXESUF=$(exesuf $host_os)
3615
3616 # set temporary file name
3617 : ${TMPDIR:=$TEMPDIR}
3618 : ${TMPDIR:=$TMP}
3619 : ${TMPDIR:=/tmp}
3620
3621 if [ -n "$tempprefix" ] ; then
3622     mktemp(){
3623         echo $tempprefix.${HOSTNAME}.${UID}
3624     }
3625 elif ! check_cmd mktemp -u XXXXXX; then
3626     # simple replacement for missing mktemp
3627     # NOT SAFE FOR GENERAL USE
3628     mktemp(){
3629         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3630     }
3631 fi
3632
3633 tmpfile(){
3634     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3635         (set -C; exec > $tmp) 2>/dev/null ||
3636         die "Unable to create temporary file in $TMPDIR."
3637     append TMPFILES $tmp
3638     eval $1=$tmp
3639 }
3640
3641 trap 'rm -f -- $TMPFILES' EXIT
3642
3643 tmpfile TMPASM .asm
3644 tmpfile TMPC   .c
3645 tmpfile TMPCPP .cpp
3646 tmpfile TMPE   $EXESUF
3647 tmpfile TMPH   .h
3648 tmpfile TMPM   .m
3649 tmpfile TMPO   .o
3650 tmpfile TMPS   .S
3651 tmpfile TMPSH  .sh
3652 tmpfile TMPV   .ver
3653
3654 unset -f mktemp
3655
3656 chmod +x $TMPE
3657
3658 # make sure we can execute files in $TMPDIR
3659 cat > $TMPSH 2>> $logfile <<EOF
3660 #! /bin/sh
3661 EOF
3662 chmod +x $TMPSH >> $logfile 2>&1
3663 if ! $TMPSH >> $logfile 2>&1; then
3664     cat <<EOF
3665 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3666 variable to another directory and make sure that it is not mounted noexec.
3667 EOF
3668     die "Sanity test failed."
3669 fi
3670
3671 armasm_flags(){
3672     for flag; do
3673         case $flag in
3674             # Filter out MSVC cl.exe options from cflags that shouldn't
3675             # be passed to gas-preprocessor
3676             -M[TD]*)                                            ;;
3677             *)                  echo $flag                      ;;
3678         esac
3679    done
3680 }
3681
3682 ccc_flags(){
3683     for flag; do
3684         case $flag in
3685             -std=c99)           echo -c99                       ;;
3686             -mcpu=*)            echo -arch ${flag#*=}           ;;
3687             -mieee)             echo -ieee                      ;;
3688             -O*|-fast)          echo $flag                      ;;
3689             -fno-math-errno)    echo -assume nomath_errno       ;;
3690             -g)                 echo -g3                        ;;
3691             -Wall)              echo -msg_enable level2         ;;
3692             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3693             -Wl,*)              echo $flag                      ;;
3694             -f*|-W*)                                            ;;
3695             *)                  echo $flag                      ;;
3696         esac
3697    done
3698 }
3699
3700 cparser_flags(){
3701     for flag; do
3702         case $flag in
3703             -Wno-switch)             echo -Wno-switch-enum ;;
3704             -Wno-format-zero-length) ;;
3705             -Wdisabled-optimization) ;;
3706             -Wno-pointer-sign)       echo -Wno-other ;;
3707             *)                       echo $flag ;;
3708         esac
3709     done
3710 }
3711
3712 msvc_common_flags(){
3713     for flag; do
3714         case $flag in
3715             # In addition to specifying certain flags under the compiler
3716             # specific filters, they must be specified here as well or else the
3717             # generic catch all at the bottom will print the original flag.
3718             -Wall)                ;;
3719             -std=c99)             ;;
3720             # Common flags
3721             -fomit-frame-pointer) ;;
3722             -g)                   echo -Z7 ;;
3723             -fno-math-errno)      ;;
3724             -fno-common)          ;;
3725             -fno-signed-zeros)    ;;
3726             -fPIC)                ;;
3727             -mthumb)              ;;
3728             -march=*)             ;;
3729             -lz)                  echo zlib.lib ;;
3730             -lavifil32)           echo vfw32.lib ;;
3731             -lavicap32)           echo vfw32.lib user32.lib ;;
3732             -lx264)               echo libx264.lib ;;
3733             -l*)                  echo ${flag#-l}.lib ;;
3734             -LARGEADDRESSAWARE)   echo $flag ;;
3735             -L*)                  echo -libpath:${flag#-L} ;;
3736             *)                    echo $flag ;;
3737         esac
3738     done
3739 }
3740
3741 msvc_flags(){
3742     msvc_common_flags "$@"
3743     for flag; do
3744         case $flag in
3745             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3746                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3747                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3748                                        -wd4307 \
3749                                        -wd4273 -wd4554 -wd4701 ;;
3750         esac
3751     done
3752 }
3753
3754 icl_flags(){
3755     msvc_common_flags "$@"
3756     for flag; do
3757         case $flag in
3758             # Despite what Intel's documentation says -Wall, which is supported
3759             # on Windows, does enable remarks so disable them here.
3760             -Wall)                echo $flag -Qdiag-disable:remark ;;
3761             -std=c99)             echo -Qstd=c99 ;;
3762             -flto)                echo -ipo ;;
3763         esac
3764     done
3765 }
3766
3767 icc_flags(){
3768     for flag; do
3769         case $flag in
3770             -flto)                echo -ipo ;;
3771             *)                    echo $flag ;;
3772         esac
3773     done
3774 }
3775
3776 pgi_flags(){
3777     for flag; do
3778         case $flag in
3779             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3780             -fomit-frame-pointer) echo -Mnoframe ;;
3781             -g)                   echo -gopt ;;
3782             *)                    echo $flag ;;
3783         esac
3784     done
3785 }
3786
3787 suncc_flags(){
3788     for flag; do
3789         case $flag in
3790             -march=*|-mcpu=*)
3791                 case "${flag#*=}" in
3792                     native)                   echo -xtarget=native       ;;
3793                     v9|niagara)               echo -xarch=sparc          ;;
3794                     ultrasparc)               echo -xarch=sparcvis       ;;
3795                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3796                     i586|pentium)             echo -xchip=pentium        ;;
3797                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3798                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3799                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3800                     pentium4*)          echo -xtarget=pentium4           ;;
3801                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3802                     *-sse3)             echo -xarch=sse3                 ;;
3803                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3804                     bonnell)                   echo -xarch=ssse3         ;;
3805                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3806                     westmere)                  echo -xtarget=westmere    ;;
3807                     silvermont)                echo -xarch=sse4_2        ;;
3808                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3809                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3810                                                echo -xarch=avx           ;;
3811                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3812                     btver1)                    echo -xarch=amdsse4a      ;;
3813                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3814                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3815                     k8|opteron|athlon64|athlon-fx)
3816                                                echo -xarch=sse2a         ;;
3817                     athlon*)                   echo -xarch=pentium_proa  ;;
3818                 esac
3819                 ;;
3820             -std=c99)             echo -xc99              ;;
3821             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3822             -fPIC)                echo -KPIC -xcode=pic32 ;;
3823             -W*,*)                echo $flag              ;;
3824             -f*-*|-W*|-mimpure-text)                      ;;
3825             -shared)              echo -G                 ;;
3826             *)                    echo $flag              ;;
3827         esac
3828     done
3829 }
3830
3831 tms470_flags(){
3832     for flag; do
3833         case $flag in
3834             -march=*|-mcpu=*)
3835                 case "${flag#*=}" in
3836                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3837                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3838                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3839                     armv6*|arm11*)          echo -mv=6   ;;
3840                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3841                                             echo -mv=5e  ;;
3842                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3843                 esac
3844                 ;;
3845             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3846             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3847             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3848             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3849             -msoft-float)   echo --float_support=vfplib       ;;
3850             -O[0-3]|-mf=*)  echo $flag                        ;;
3851             -g)             echo -g -mn                       ;;
3852             -pds=*)         echo $flag                        ;;
3853             -D*|-I*)        echo $flag                        ;;
3854             --gcc|--abi=*)  echo $flag                        ;;
3855             -me)            echo $flag                        ;;
3856         esac
3857     done
3858 }
3859
3860 probe_cc(){
3861     pfx=$1
3862     _cc=$2
3863     first=$3
3864
3865     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3866     unset _ld_o _ldflags _ld_lib _ld_path
3867     unset _depflags _DEPCMD _DEPFLAGS
3868     _flags_filter=echo
3869
3870     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3871         true # no-op to avoid reading stdin in following checks
3872     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3873         _type=llvm_gcc
3874         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3875         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3876         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3877         _cflags_speed='-O3'
3878         _cflags_size='-Os'
3879     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3880         _type=gcc
3881         gcc_version=$($_cc --version | head -n1)
3882         gcc_basever=$($_cc -dumpversion)
3883         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3884         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3885         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3886         case $gcc_basever in
3887             2) ;;
3888             2.*) ;;
3889             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3890         esac
3891         if [ "$first" = true ]; then
3892             case $gcc_basever in
3893                 4.2*)
3894                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3895             esac
3896         fi
3897         _cflags_speed='-O3'
3898         _cflags_size='-Os'
3899     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3900         _type=icc
3901         _ident=$($_cc --version | head -n1)
3902         _depflags='-MMD'
3903         _cflags_speed='-O3'
3904         _cflags_size='-Os'
3905         _cflags_noopt='-O1'
3906         _flags_filter=icc_flags
3907     elif $_cc -v 2>&1 | grep -q xlc; then
3908         _type=xlc
3909         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3910         _cflags_speed='-O5'
3911         _cflags_size='-O5 -qcompact'
3912     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3913         _type=ccc
3914         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3915         _DEPFLAGS='-M'
3916         _cflags_speed='-fast'
3917         _cflags_size='-O1'
3918         _flags_filter=ccc_flags
3919     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3920         test -d "$sysroot" || die "No valid sysroot specified."
3921         _type=armcc
3922         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3923         armcc_conf="$PWD/armcc.conf"
3924         $_cc --arm_linux_configure                 \
3925              --arm_linux_config_file="$armcc_conf" \
3926              --configure_sysroot="$sysroot"        \
3927              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3928              die "Error creating armcc configuration file."
3929         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3930         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3931         as_default="${cross_prefix}gcc"
3932         _depflags='-MMD'
3933         _cflags_speed='-O3'
3934         _cflags_size='-Os'
3935     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3936         _type=tms470
3937         _ident=$($_cc -version | head -n1 | tr -s ' ')
3938         _flags='--gcc --abi=eabi -me'
3939         _cc_e='-ppl -fe=$@'
3940         _cc_o='-fe=$@'
3941         _depflags='-ppa -ppd=$(@:.o=.d)'
3942         _cflags_speed='-O3 -mf=5'
3943         _cflags_size='-O3 -mf=2'
3944         _flags_filter=tms470_flags
3945     elif $_cc -v 2>&1 | grep -q clang; then
3946         _type=clang
3947         _ident=$($_cc --version 2>/dev/null | head -n1)
3948         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3949         _cflags_speed='-O3'
3950         _cflags_size='-Os'
3951     elif $_cc -V 2>&1 | grep -q Sun; then
3952         _type=suncc
3953         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3954         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3955         _DEPFLAGS='-xM1 -xc99'
3956         _ldflags='-std=c99'
3957         _cflags_speed='-O5'
3958         _cflags_size='-O5 -xspace'
3959         _flags_filter=suncc_flags
3960     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3961         _type=pathscale
3962         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3963         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3964         _cflags_speed='-O2'
3965         _cflags_size='-Os'
3966         _flags_filter='filter_out -Wdisabled-optimization'
3967     elif $_cc -v 2>&1 | grep -q Open64; then
3968         _type=open64
3969         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3970         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3971         _cflags_speed='-O2'
3972         _cflags_size='-Os'
3973         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3974     elif $_cc -V 2>&1 | grep -q Portland; then
3975         _type=pgi
3976         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3977         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3978         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3979         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3980         _cflags_noopt="-O"
3981         _flags_filter=pgi_flags
3982     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3983         _type=armasm
3984         _ident=$($_cc | head -n1)
3985         # 4509: "This form of conditional instruction is deprecated"
3986         _flags="-nologo -ignore 4509"
3987         _flags_filter=armasm_flags
3988     elif $_cc 2>&1 | grep -q Intel; then
3989         _type=icl
3990         _ident=$($_cc 2>&1 | head -n1)
3991         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3992         # Not only is O3 broken on 13.x+ but it is slower on all previous
3993         # versions (tested) as well.
3994         _cflags_speed="-O2"
3995         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3996         if $_cc 2>&1 | grep -q Linker; then
3997             _ld_o='-out:$@'
3998         else
3999             _ld_o='-Fe$@'
4000         fi
4001         _cc_o='-Fo$@'
4002         _cc_e='-P'
4003         _flags_filter=icl_flags
4004         _ld_lib='lib%.a'
4005         _ld_path='-libpath:'
4006         # -Qdiag-error to make icl error when seeing certain unknown arguments
4007         _flags='-nologo -Qdiag-error:4044,10157'
4008         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4009         # with MSVC which enables it by default.
4010         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4011         disable stripping
4012     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4013         _type=msvc
4014         _ident=$($_cc 2>&1 | head -n1)
4015         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4016         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4017         _cflags_speed="-O2"
4018         _cflags_size="-O1"
4019         if $_cc -nologo- 2>&1 | grep -q Linker; then
4020             _ld_o='-out:$@'
4021         else
4022             _ld_o='-Fe$@'
4023         fi
4024         _cc_o='-Fo$@'
4025         _cc_e='-P -Fi$@'
4026         _flags_filter=msvc_flags
4027         _ld_lib='lib%.a'
4028         _ld_path='-libpath:'
4029         _flags='-nologo'
4030         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4031         disable stripping
4032     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4033         _type=cparser
4034         _ident=$($_cc --version | head -n1)
4035         _depflags='-MMD'
4036         _cflags_speed='-O4'
4037         _cflags_size='-O2'
4038         _flags_filter=cparser_flags
4039     fi
4040
4041     eval ${pfx}_type=\$_type
4042     eval ${pfx}_ident=\$_ident
4043 }
4044
4045 set_ccvars(){
4046     eval ${1}_C=\${_cc_c-\${${1}_C}}
4047     eval ${1}_E=\${_cc_e-\${${1}_E}}
4048     eval ${1}_O=\${_cc_o-\${${1}_O}}
4049
4050     if [ -n "$_depflags" ]; then
4051         eval ${1}_DEPFLAGS=\$_depflags
4052     else
4053         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4054         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4055         eval DEP${1}FLAGS=\$_flags
4056     fi
4057 }
4058
4059 probe_cc cc "$cc" "true"
4060 cflags_filter=$_flags_filter
4061 cflags_speed=$_cflags_speed
4062 cflags_size=$_cflags_size
4063 cflags_noopt=$_cflags_noopt
4064 add_cflags $_flags $_cflags
4065 cc_ldflags=$_ldflags
4066 set_ccvars CC
4067