lavc/avpacket: Fix undefined behaviour, do not pass a null pointer to memcpy().
[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     LoadLibrary
1925     localtime_r
1926     lstat
1927     lzo1x_999_compress
1928     mach_absolute_time
1929     MapViewOfFile
1930     memalign
1931     mkstemp
1932     mmap
1933     mprotect
1934     nanosleep
1935     PeekNamedPipe
1936     posix_memalign
1937     pthread_cancel
1938     sched_getaffinity
1939     SetConsoleTextAttribute
1940     SetConsoleCtrlHandler
1941     setmode
1942     setrlimit
1943     Sleep
1944     strerror_r
1945     sysconf
1946     sysctl
1947     usleep
1948     UTGetOSTypeFromString
1949     VirtualAlloc
1950     wglGetProcAddress
1951 "
1952
1953 TOOLCHAIN_FEATURES="
1954     as_dn_directive
1955     as_func
1956     as_object_arch
1957     asm_mod_q
1958     attribute_may_alias
1959     attribute_packed
1960     ebp_available
1961     ebx_available
1962     gnu_as
1963     gnu_windres
1964     ibm_asm
1965     inline_asm_direct_symbol_refs
1966     inline_asm_labels
1967     inline_asm_nonlocal_labels
1968     pragma_deprecated
1969     rsync_contimeout
1970     symver_asm_label
1971     symver_gnu_asm
1972     vfp_args
1973     xform_asm
1974     xmm_clobbers
1975 "
1976
1977 TYPES_LIST="
1978     CONDITION_VARIABLE_Ptr
1979     socklen_t
1980     struct_addrinfo
1981     struct_group_source_req
1982     struct_ip_mreq_source
1983     struct_ipv6_mreq
1984     struct_msghdr_msg_flags
1985     struct_pollfd
1986     struct_rusage_ru_maxrss
1987     struct_sctp_event_subscribe
1988     struct_sockaddr_in6
1989     struct_sockaddr_sa_len
1990     struct_sockaddr_storage
1991     struct_stat_st_mtim_tv_nsec
1992     struct_v4l2_frmivalenum_discrete
1993 "
1994
1995 HAVE_LIST="
1996     $ARCH_EXT_LIST
1997     $(add_suffix _external $ARCH_EXT_LIST)
1998     $(add_suffix _inline   $ARCH_EXT_LIST)
1999     $ARCH_FEATURES
2000     $ATOMICS_LIST
2001     $BUILTIN_LIST
2002     $COMPLEX_FUNCS
2003     $HAVE_LIST_CMDLINE
2004     $HAVE_LIST_PUB
2005     $HEADERS_LIST
2006     $INTRINSICS_LIST
2007     $MATH_FUNCS
2008     $SYSTEM_FUNCS
2009     $THREADS_LIST
2010     $TOOLCHAIN_FEATURES
2011     $TYPES_LIST
2012     atomics_native
2013     dos_paths
2014     dxva2_lib
2015     dxva2api_cobj
2016     libc_msvcrt
2017     libdc1394_1
2018     libdc1394_2
2019     makeinfo
2020     makeinfo_html
2021     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2022     perl
2023     pod2man
2024     sdl
2025     section_data_rel_ro
2026     texi2html
2027     threads
2028     vaapi_drm
2029     vaapi_x11
2030     vdpau_x11
2031     winrt
2032     xlib
2033 "
2034
2035 # options emitted with CONFIG_ prefix but not available on the command line
2036 CONFIG_EXTRA="
2037     aandcttables
2038     ac3dsp
2039     audio_frame_queue
2040     audiodsp
2041     blockdsp
2042     bswapdsp
2043     cabac
2044     dirac_parse
2045     dvprofile
2046     exif
2047     faandct
2048     faanidct
2049     fdctdsp
2050     flacdsp
2051     fmtconvert
2052     frame_thread_encoder
2053     g722dsp
2054     golomb
2055     gplv3
2056     h263dsp
2057     h264chroma
2058     h264dsp
2059     h264pred
2060     h264qpel
2061     hpeldsp
2062     huffman
2063     huffyuvdsp
2064     huffyuvencdsp
2065     idctdsp
2066     iirfilter
2067     imdct15
2068     intrax8
2069     iso_media
2070     ividsp
2071     jpegtables
2072     lgplv3
2073     libx262
2074     llauddsp
2075     llviddsp
2076     lpc
2077     lzf
2078     me_cmp
2079     mpeg_er
2080     mpegaudio
2081     mpegaudiodsp
2082     mpegvideo
2083     mpegvideoenc
2084     mss34dsp
2085     pixblockdsp
2086     qpeldsp
2087     qsv
2088     qsvdec
2089     qsvenc
2090     rangecoder
2091     riffdec
2092     riffenc
2093     rtpdec
2094     rtpenc_chain
2095     rv34dsp
2096     sinewin
2097     snappy
2098     srtp
2099     startcode
2100     texturedsp
2101     texturedspenc
2102     tpeldsp
2103     vaapi_encode
2104     vc1dsp
2105     videodsp
2106     vp3dsp
2107     vp56dsp
2108     vp8dsp
2109     vt_bt2020
2110     wma_freqs
2111     wmv2dsp
2112 "
2113
2114 CMDLINE_SELECT="
2115     $ARCH_EXT_LIST
2116     $CONFIG_LIST
2117     $HAVE_LIST_CMDLINE
2118     $THREADS_LIST
2119     asm
2120     cross_compile
2121     debug
2122     extra_warnings
2123     logging
2124     lto
2125     optimizations
2126     rpath
2127     stripping
2128 "
2129
2130 PATHS_LIST="
2131     bindir
2132     datadir
2133     docdir
2134     incdir
2135     libdir
2136     mandir
2137     pkgconfigdir
2138     prefix
2139     shlibdir
2140     install_name_dir
2141 "
2142
2143 CMDLINE_SET="
2144     $PATHS_LIST
2145     ar
2146     arch
2147     as
2148     assert_level
2149     build_suffix
2150     cc
2151     objcc
2152     cpu
2153     cross_prefix
2154     custom_allocator
2155     cxx
2156     dep_cc
2157     doxygen
2158     env
2159     extra_version
2160     gas
2161     host_cc
2162     host_cflags
2163     host_ld
2164     host_ldflags
2165     host_libs
2166     host_os
2167     install
2168     ld
2169     ln_s
2170     logfile
2171     malloc_prefix
2172     nm
2173     optflags
2174     pkg_config
2175     pkg_config_flags
2176     progs_suffix
2177     random_seed
2178     ranlib
2179     samples
2180     strip
2181     sws_max_filter_size
2182     sysinclude
2183     sysroot
2184     target_exec
2185     target_os
2186     target_path
2187     target_samples
2188     tempprefix
2189     toolchain
2190     valgrind
2191     yasmexe
2192 "
2193
2194 CMDLINE_APPEND="
2195     extra_cflags
2196     extra_cxxflags
2197     extra_objcflags
2198     host_cppflags
2199 "
2200
2201 # code dependency declarations
2202
2203 # architecture extensions
2204
2205 armv5te_deps="arm"
2206 armv6_deps="arm"
2207 armv6t2_deps="arm"
2208 armv8_deps="aarch64"
2209 neon_deps_any="aarch64 arm"
2210 intrinsics_neon_deps="neon"
2211 vfp_deps_any="aarch64 arm"
2212 vfpv3_deps="vfp"
2213 setend_deps="arm"
2214
2215 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2216
2217 loongson2_deps="mips"
2218 loongson3_deps="mips"
2219 mipsfpu_deps="mips"
2220 mipsdsp_deps="mips"
2221 mipsdspr2_deps="mips"
2222 mips32r2_deps="mips"
2223 mips32r5_deps="mips"
2224 mips32r6_deps="mips"
2225 mips64r2_deps="mips"
2226 mips64r6_deps="mips"
2227 msa_deps="mipsfpu"
2228 mmi_deps="mips"
2229
2230 altivec_deps="ppc"
2231 dcbzl_deps="ppc"
2232 ldbrx_deps="ppc"
2233 ppc4xx_deps="ppc"
2234 vsx_deps="altivec"
2235 power8_deps="vsx"
2236
2237 cpunop_deps="i686"
2238 x86_64_select="i686"
2239 x86_64_suggest="fast_cmov"
2240
2241 amd3dnow_deps="mmx"
2242 amd3dnowext_deps="amd3dnow"
2243 i686_deps="x86"
2244 mmx_deps="x86"
2245 mmxext_deps="mmx"
2246 sse_deps="mmxext"
2247 sse2_deps="sse"
2248 sse3_deps="sse2"
2249 ssse3_deps="sse3"
2250 sse4_deps="ssse3"
2251 sse42_deps="sse4"
2252 aesni_deps="sse42"
2253 avx_deps="sse42"
2254 xop_deps="avx"
2255 fma3_deps="avx"
2256 fma4_deps="avx"
2257 avx2_deps="avx"
2258
2259 mmx_external_deps="yasm"
2260 mmx_inline_deps="inline_asm"
2261 mmx_suggest="mmx_external mmx_inline"
2262
2263 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2264     eval dep=\$${ext}_deps
2265     eval ${ext}_external_deps='"${dep}_external"'
2266     eval ${ext}_inline_deps='"${dep}_inline"'
2267     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2268 done
2269
2270 aligned_stack_if_any="aarch64 ppc x86"
2271 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2272 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2273 fast_unaligned_if_any="aarch64 ppc x86"
2274 simd_align_16_if_any="altivec neon sse"
2275
2276 # system capabilities
2277 symver_if_any="symver_asm_label symver_gnu_asm"
2278 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2279
2280 # threading support
2281 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2282 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2283 atomics_win32_if="MemoryBarrier"
2284 atomics_native_if_any="$ATOMICS_LIST"
2285 w32threads_deps="atomics_native"
2286 threads_if_any="$THREADS_LIST"
2287
2288 # subsystems
2289 dct_select="rdft"
2290 dirac_parse_select="golomb"
2291 error_resilience_select="me_cmp"
2292 faandct_deps="faan fdctdsp"
2293 faanidct_deps="faan idctdsp"
2294 h264dsp_select="startcode"
2295 frame_thread_encoder_deps="encoders threads"
2296 intrax8_select="blockdsp idctdsp"
2297 mdct_select="fft"
2298 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2299 mpeg_er_select="error_resilience"
2300 mpegaudio_select="mpegaudiodsp"
2301 mpegaudiodsp_select="dct"
2302 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2303 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2304 vc1dsp_select="h264chroma qpeldsp startcode"
2305 rdft_select="fft"
2306
2307 # decoders / encoders
2308 aac_decoder_select="imdct15 mdct sinewin"
2309 aac_fixed_decoder_select="mdct sinewin"
2310 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2311 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2312 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2313 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2314 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2315 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2316 adpcm_g722_decoder_select="g722dsp"
2317 adpcm_g722_encoder_select="g722dsp"
2318 aic_decoder_select="golomb idctdsp"
2319 alac_encoder_select="lpc"
2320 als_decoder_select="bswapdsp"
2321 amrnb_decoder_select="lsp"
2322 amrwb_decoder_select="lsp"
2323 amv_decoder_select="sp5x_decoder exif"
2324 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2325 ape_decoder_select="bswapdsp llauddsp"
2326 apng_decoder_select="zlib"
2327 apng_encoder_select="huffyuvencdsp zlib"
2328 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2329 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2330 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2331 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2332 atrac1_decoder_select="mdct sinewin"
2333 atrac3_decoder_select="mdct"
2334 atrac3p_decoder_select="mdct sinewin"
2335 avrn_decoder_select="exif jpegtables"
2336 bink_decoder_select="blockdsp hpeldsp"
2337 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2338 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2339 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2340 cllc_decoder_select="bswapdsp"
2341 comfortnoise_encoder_select="lpc"
2342 cook_decoder_select="audiodsp mdct sinewin"
2343 cscd_decoder_select="lzo"
2344 cscd_decoder_suggest="zlib"
2345 dca_decoder_select="mdct"
2346 dds_decoder_select="texturedsp"
2347 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2348 dnxhd_decoder_select="blockdsp idctdsp"
2349 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2350 dvvideo_decoder_select="dvprofile idctdsp"
2351 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2352 dxa_decoder_select="zlib"
2353 dxv_decoder_select="lzf texturedsp"
2354 eac3_decoder_select="ac3_decoder"
2355 eac3_encoder_select="ac3_encoder"
2356 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2357 eatgq_decoder_select="aandcttables"
2358 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2359 exr_decoder_select="zlib"
2360 ffv1_decoder_select="golomb rangecoder"
2361 ffv1_encoder_select="rangecoder"
2362 ffvhuff_decoder_select="huffyuv_decoder"
2363 ffvhuff_encoder_select="huffyuv_encoder"
2364 fic_decoder_select="golomb"
2365 flac_decoder_select="flacdsp golomb"
2366 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2367 flashsv2_decoder_select="zlib"
2368 flashsv2_encoder_select="zlib"
2369 flashsv_decoder_select="zlib"
2370 flashsv_encoder_select="zlib"
2371 flv_decoder_select="h263_decoder"
2372 flv_encoder_select="h263_encoder"
2373 fourxm_decoder_select="blockdsp bswapdsp"
2374 fraps_decoder_select="bswapdsp huffman"
2375 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2376 g729_decoder_select="audiodsp"
2377 h261_decoder_select="mpegvideo"
2378 h261_encoder_select="aandcttables mpegvideoenc"
2379 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2380 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2381 h263i_decoder_select="h263_decoder"
2382 h263p_decoder_select="h263_decoder"
2383 h263p_encoder_select="h263_encoder"
2384 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2385 h264_decoder_suggest="error_resilience"
2386 hap_decoder_select="snappy texturedsp"
2387 hap_encoder_deps="libsnappy"
2388 hap_encoder_select="texturedspenc"
2389 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2390 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2391 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2392 iac_decoder_select="imc_decoder"
2393 imc_decoder_select="bswapdsp fft mdct sinewin"
2394 indeo3_decoder_select="hpeldsp"
2395 indeo4_decoder_select="ividsp"
2396 indeo5_decoder_select="ividsp"
2397 interplay_video_decoder_select="hpeldsp"
2398 jpegls_decoder_select="golomb mjpeg_decoder"
2399 jpegls_encoder_select="golomb"
2400 jv_decoder_select="blockdsp"
2401 lagarith_decoder_select="huffyuvdsp"
2402 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2403 loco_decoder_select="golomb"
2404 magicyuv_decoder_select="huffyuvdsp"
2405 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2406 metasound_decoder_select="lsp mdct sinewin"
2407 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2408 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2409 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2410 mjpegb_decoder_select="mjpeg_decoder"
2411 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2412 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2413 mlp_decoder_select="mlp_parser"
2414 motionpixels_decoder_select="bswapdsp"
2415 mp1_decoder_select="mpegaudio"
2416 mp1float_decoder_select="mpegaudio"
2417 mp2_decoder_select="mpegaudio"
2418 mp2float_decoder_select="mpegaudio"
2419 mp3_decoder_select="mpegaudio"
2420 mp3adu_decoder_select="mpegaudio"
2421 mp3adufloat_decoder_select="mpegaudio"
2422 mp3float_decoder_select="mpegaudio"
2423 mp3on4_decoder_select="mpegaudio"
2424 mp3on4float_decoder_select="mpegaudio"
2425 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2426 mpc8_decoder_select="mpegaudiodsp"
2427 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2428 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2429 mpegvideo_decoder_select="mpegvideo"
2430 mpeg1video_decoder_select="mpegvideo"
2431 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2432 mpeg2video_decoder_select="mpegvideo"
2433 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2434 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2435 mpeg4_encoder_select="h263_encoder"
2436 msa1_decoder_select="mss34dsp"
2437 msmpeg4v1_decoder_select="h263_decoder"
2438 msmpeg4v2_decoder_select="h263_decoder"
2439 msmpeg4v2_encoder_select="h263_encoder"
2440 msmpeg4v3_decoder_select="h263_decoder"
2441 msmpeg4v3_encoder_select="h263_encoder"
2442 mss2_decoder_select="vc1_decoder mpegvideo"
2443 mts2_decoder_select="mss34dsp"
2444 mxpeg_decoder_select="mjpeg_decoder"
2445 nellymoser_decoder_select="mdct sinewin"
2446 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2447 nuv_decoder_select="idctdsp lzo"
2448 on2avc_decoder_select="mdct"
2449 opus_decoder_deps="swresample"
2450 opus_decoder_select="imdct15"
2451 png_decoder_select="zlib"
2452 png_encoder_select="huffyuvencdsp zlib"
2453 prores_decoder_select="blockdsp idctdsp"
2454 prores_encoder_select="fdctdsp"
2455 qcelp_decoder_select="lsp"
2456 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2457 ra_144_decoder_select="audiodsp"
2458 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2459 ralf_decoder_select="golomb"
2460 rawvideo_decoder_select="bswapdsp"
2461 rscc_decoder_select="zlib"
2462 rtjpeg_decoder_select="me_cmp"
2463 rv10_decoder_select="h263_decoder"
2464 rv10_encoder_select="h263_encoder"
2465 rv20_decoder_select="h263_decoder"
2466 rv20_encoder_select="h263_encoder"
2467 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2468 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2469 screenpresso_decoder_select="zlib"
2470 shorten_decoder_select="golomb"
2471 sipr_decoder_select="lsp"
2472 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2473 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2474 sonic_decoder_select="golomb rangecoder"
2475 sonic_encoder_select="golomb rangecoder"
2476 sonic_ls_encoder_select="golomb rangecoder"
2477 sp5x_decoder_select="mjpeg_decoder"
2478 svq1_decoder_select="hpeldsp"
2479 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2480 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2481 svq3_decoder_suggest="zlib"
2482 tak_decoder_select="audiodsp"
2483 tdsc_decoder_select="zlib mjpeg_decoder"
2484 theora_decoder_select="vp3_decoder"
2485 thp_decoder_select="mjpeg_decoder"
2486 tiff_decoder_suggest="zlib lzma"
2487 tiff_encoder_suggest="zlib"
2488 truehd_decoder_select="mlp_parser"
2489 truemotion2_decoder_select="bswapdsp"
2490 truespeech_decoder_select="bswapdsp"
2491 tscc_decoder_select="zlib"
2492 twinvq_decoder_select="mdct lsp sinewin"
2493 txd_decoder_select="texturedsp"
2494 utvideo_decoder_select="bswapdsp"
2495 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2496 vble_decoder_select="huffyuvdsp"
2497 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2498 vc1_qsv_decoder_deps="libmfx"
2499 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2500 vc1image_decoder_select="vc1_decoder"
2501 vorbis_decoder_select="mdct"
2502 vorbis_encoder_select="mdct"
2503 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2504 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2505 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2506 vp6a_decoder_select="vp6_decoder"
2507 vp6f_decoder_select="vp6_decoder"
2508 vp7_decoder_select="h264pred videodsp vp8dsp"
2509 vp8_decoder_select="h264pred videodsp vp8dsp"
2510 vp9_decoder_select="videodsp vp9_parser"
2511 webp_decoder_select="vp8_decoder exif"
2512 wmalossless_decoder_select="llauddsp"
2513 wmapro_decoder_select="mdct sinewin wma_freqs"
2514 wmav1_decoder_select="mdct sinewin wma_freqs"
2515 wmav1_encoder_select="mdct sinewin wma_freqs"
2516 wmav2_decoder_select="mdct sinewin wma_freqs"
2517 wmav2_encoder_select="mdct sinewin wma_freqs"
2518 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2519 wmv1_decoder_select="h263_decoder"
2520 wmv1_encoder_select="h263_encoder"
2521 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2522 wmv2_encoder_select="h263_encoder wmv2dsp"
2523 wmv3_decoder_select="vc1_decoder"
2524 wmv3image_decoder_select="wmv3_decoder"
2525 xma1_decoder_select="wmapro_decoder"
2526 xma2_decoder_select="wmapro_decoder"
2527 zerocodec_decoder_select="zlib"
2528 zlib_decoder_select="zlib"
2529 zlib_encoder_select="zlib"
2530 zmbv_decoder_select="zlib"
2531 zmbv_encoder_select="zlib"
2532
2533 # platform codecs
2534 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2535 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2536
2537 # hardware accelerators
2538 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2539 cuvid_deps="cuda"
2540 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2541 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2542 vaapi_deps="va_va_h"
2543 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2544 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2545 vda_deps="vda_framework pthreads"
2546 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2547 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2548 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2549 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2550 xvmc_deps="X11_extensions_XvMClib_h"
2551
2552 h263_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG4PICPARAMS"
2553 h263_vaapi_hwaccel_deps="vaapi"
2554 h263_vaapi_hwaccel_select="h263_decoder"
2555 h263_videotoolbox_hwaccel_deps="videotoolbox"
2556 h263_videotoolbox_hwaccel_select="h263_decoder"
2557 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2558 h264_cuvid_hwaccel_deps="cuda cuvid CUVIDH264PICPARAMS"
2559 h264_d3d11va_hwaccel_deps="d3d11va"
2560 h264_d3d11va_hwaccel_select="h264_decoder"
2561 h264_dxva2_hwaccel_deps="dxva2"
2562 h264_dxva2_hwaccel_select="h264_decoder"
2563 h264_mediacodec_decoder_deps="mediacodec"
2564 h264_mediacodec_hwaccel_deps="mediacodec"
2565 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2566 h264_mmal_decoder_deps="mmal"
2567 h264_mmal_decoder_select="mmal"
2568 h264_mmal_hwaccel_deps="mmal"
2569 h264_omx_encoder_deps="omx"
2570 h264_qsv_hwaccel_deps="libmfx"
2571 h264_vaapi_hwaccel_deps="vaapi"
2572 h264_vaapi_hwaccel_select="h264_decoder"
2573 h264_vda_decoder_deps="vda"
2574 h264_vda_decoder_select="h264_decoder"
2575 h264_vda_hwaccel_deps="vda"
2576 h264_vda_hwaccel_select="h264_decoder"
2577 h264_vda_old_hwaccel_deps="vda"
2578 h264_vda_old_hwaccel_select="h264_decoder"
2579 h264_vdpau_decoder_deps="vdpau"
2580 h264_vdpau_decoder_select="h264_decoder"
2581 h264_vdpau_hwaccel_deps="vdpau"
2582 h264_vdpau_hwaccel_select="h264_decoder"
2583 h264_videotoolbox_hwaccel_deps="videotoolbox"
2584 h264_videotoolbox_hwaccel_select="h264_decoder"
2585 hevc_cuvid_hwaccel_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2586 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2587 hevc_d3d11va_hwaccel_select="hevc_decoder"
2588 hevc_mediacodec_decoder_deps="mediacodec"
2589 hevc_mediacodec_hwaccel_deps="mediacodec"
2590 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2591 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2592 hevc_dxva2_hwaccel_select="hevc_decoder"
2593 hevc_qsv_hwaccel_deps="libmfx"
2594 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2595 hevc_vaapi_hwaccel_select="hevc_decoder"
2596 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2597 hevc_vdpau_hwaccel_select="hevc_decoder"
2598 mjpeg_cuvid_hwaccel_deps="cuda cuvid CUVIDJPEGPICPARAMS"
2599 mpeg_vdpau_decoder_deps="vdpau"
2600 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2601 mpeg_xvmc_hwaccel_deps="xvmc"
2602 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2603 mpeg1_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG2PICPARAMS"
2604 mpeg1_vdpau_decoder_deps="vdpau"
2605 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2606 mpeg1_vdpau_hwaccel_deps="vdpau"
2607 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2608 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2609 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2610 mpeg1_xvmc_hwaccel_deps="xvmc"
2611 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2612 mpeg2_crystalhd_decoder_select="crystalhd"
2613 mpeg2_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG2PICPARAMS"
2614 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2615 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2616 mpeg2_dxva2_hwaccel_deps="dxva2"
2617 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2618 mpeg2_mmal_decoder_deps="mmal"
2619 mpeg2_mmal_decoder_select="mmal"
2620 mpeg2_mmal_hwaccel_deps="mmal"
2621 mpeg2_qsv_hwaccel_deps="libmfx"
2622 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2623 mpeg2_vaapi_hwaccel_deps="vaapi"
2624 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2625 mpeg2_vdpau_hwaccel_deps="vdpau"
2626 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2627 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2628 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2629 mpeg2_xvmc_hwaccel_deps="xvmc"
2630 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2631 mpeg4_crystalhd_decoder_select="crystalhd"
2632 mpeg4_cuvid_hwaccel_deps="cuda cuvid CUVIDMPEG4PICPARAMS"
2633 mpeg4_mmal_decoder_deps="mmal"
2634 mpeg4_mmal_decoder_select="mmal"
2635 mpeg4_mmal_hwaccel_deps="mmal"
2636 mpeg4_omx_encoder_deps="omx"
2637 mpeg4_vaapi_hwaccel_deps="vaapi"
2638 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2639 mpeg4_vdpau_decoder_deps="vdpau"
2640 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2641 mpeg4_vdpau_hwaccel_deps="vdpau"
2642 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2643 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2644 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2645 msmpeg4_crystalhd_decoder_select="crystalhd"
2646 vc1_crystalhd_decoder_select="crystalhd"
2647 vc1_cuvid_hwaccel_deps="cuda cuvid CUVIDVC1PICPARAMS"
2648 vc1_d3d11va_hwaccel_deps="d3d11va"
2649 vc1_d3d11va_hwaccel_select="vc1_decoder"
2650 vc1_dxva2_hwaccel_deps="dxva2"
2651 vc1_dxva2_hwaccel_select="vc1_decoder"
2652 vc1_mmal_decoder_deps="mmal"
2653 vc1_mmal_decoder_select="mmal"
2654 vc1_mmal_hwaccel_deps="mmal"
2655 vc1_qsv_hwaccel_deps="libmfx"
2656 vc1_qsv_hwaccel_select="qsvdec_vc1"
2657 vc1_vaapi_hwaccel_deps="vaapi"
2658 vc1_vaapi_hwaccel_select="vc1_decoder"
2659 vc1_vdpau_decoder_deps="vdpau"
2660 vc1_vdpau_decoder_select="vc1_decoder"
2661 vc1_vdpau_hwaccel_deps="vdpau"
2662 vc1_vdpau_hwaccel_select="vc1_decoder"
2663 vp8_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2664 vp9_cuvid_hwaccel_deps="cuda cuvid CUVIDVP9PICPARAMS"
2665 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2666 vp9_d3d11va_hwaccel_select="vp9_decoder"
2667 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2668 vp9_dxva2_hwaccel_select="vp9_decoder"
2669 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2670 vp9_vaapi_hwaccel_select="vp9_decoder"
2671 wmv3_crystalhd_decoder_select="crystalhd"
2672 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2673 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2674 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2675 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2676 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2677
2678 # hardware-accelerated codecs
2679 omx_deps="dlopen pthreads"
2680 omx_extralibs='$ldl'
2681 qsvdec_select="qsv"
2682 qsvenc_select="qsv"
2683 vaapi_encode_deps="vaapi"
2684
2685 hwupload_cuda_filter_deps="cuda"
2686 scale_npp_filter_deps="cuda libnpp"
2687
2688 nvenc_deps_any="dlopen LoadLibrary"
2689 nvenc_encoder_deps="nvenc"
2690 h263_cuvid_decoder_deps="cuda cuvid CUVIDMPEG4PICPARAMS"
2691 h263_cuvid_decoder_select="h263_cuvid_hwaccel"
2692 h264_cuvid_decoder_deps="cuda cuvid CUVIDH264PICPARAMS"
2693 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2694 h264_nvenc_encoder_deps="nvenc"
2695 h264_qsv_decoder_deps="libmfx"
2696 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2697 h264_qsv_encoder_deps="libmfx"
2698 h264_qsv_encoder_select="qsvenc"
2699 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2700 h264_vaapi_encoder_select="vaapi_encode golomb"
2701
2702 hevc_cuvid_decoder_deps="cuda cuvid CUVIDHEVCPICPARAMS"
2703 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2704 hevc_nvenc_encoder_deps="nvenc"
2705 hevc_qsv_decoder_deps="libmfx"
2706 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2707 hevc_qsv_encoder_deps="libmfx"
2708 hevc_qsv_encoder_select="qsvenc"
2709 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2710 hevc_vaapi_encoder_select="vaapi_encode golomb"
2711 mjpeg_cuvid_decoder_deps="cuda cuvid CUVIDJPEGPICPARAMS"
2712 mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"
2713 mpeg1_cuvid_decoder_deps="cuda cuvid CUVIDMPEG2PICPARAMS"
2714 mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"
2715 mpeg2_cuvid_decoder_deps="cuda cuvid CUVIDMPEG2PICPARAMS"
2716 mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"
2717 mpeg2_qsv_decoder_deps="libmfx"
2718 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2719 mpeg2_qsv_encoder_deps="libmfx"
2720 mpeg2_qsv_encoder_select="qsvenc"
2721 mpeg4_cuvid_decoder_deps="cuda cuvid CUVIDMPEG4PICPARAMS"
2722 mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"
2723 nvenc_h264_encoder_deps="nvenc"
2724 nvenc_hevc_encoder_deps="nvenc"
2725
2726 vc1_cuvid_decoder_deps="cuda cuvid CUVIDVC1PICPARAMS"
2727 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2728 vp8_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2729 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2730 vp9_cuvid_decoder_deps="cuda cuvid CUVIDVP9PICPARAMS"
2731 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2732
2733 # parsers
2734 h264_parser_select="golomb h264dsp"
2735 hevc_parser_select="golomb"
2736 mpegvideo_parser_select="mpegvideo"
2737 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2738 vc1_parser_select="vc1dsp"
2739
2740 # bitstream_filters
2741 mjpeg2jpeg_bsf_select="jpegtables"
2742
2743 # external libraries
2744 aac_at_decoder_deps="audiotoolbox"
2745 ac3_at_decoder_deps="audiotoolbox"
2746 ac3_at_decoder_select="ac3_parser"
2747 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2748 alac_at_decoder_deps="audiotoolbox"
2749 amr_nb_at_decoder_deps="audiotoolbox"
2750 eac3_at_decoder_deps="audiotoolbox"
2751 eac3_at_decoder_select="ac3_parser"
2752 gsm_ms_at_decoder_deps="audiotoolbox"
2753 ilbc_at_decoder_deps="audiotoolbox"
2754 mp1_at_decoder_deps="audiotoolbox"
2755 mp2_at_decoder_deps="audiotoolbox"
2756 mp3_at_decoder_deps="audiotoolbox"
2757 pcm_alaw_at_decoder_deps="audiotoolbox"
2758 pcm_mulaw_at_decoder_deps="audiotoolbox"
2759 qdmc_at_decoder_deps="audiotoolbox"
2760 qdm2_at_decoder_deps="audiotoolbox"
2761 aac_at_encoder_deps="audiotoolbox"
2762 aac_at_encoder_select="audio_frame_queue"
2763 alac_at_encoder_deps="audiotoolbox"
2764 alac_at_encoder_select="audio_frame_queue"
2765 ilbc_at_encoder_deps="audiotoolbox"
2766 ilbc_at_encoder_select="audio_frame_queue"
2767 pcm_alaw_at_encoder_deps="audiotoolbox"
2768 pcm_alaw_at_encoder_select="audio_frame_queue"
2769 pcm_mulaw_at_encoder_deps="audiotoolbox"
2770 pcm_mulaw_at_encoder_select="audio_frame_queue"
2771 chromaprint_muxer_deps="chromaprint"
2772 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2773 libcelt_decoder_deps="libcelt"
2774 libfaac_encoder_deps="libfaac"
2775 libfaac_encoder_select="audio_frame_queue"
2776 libfdk_aac_decoder_deps="libfdk_aac"
2777 libfdk_aac_encoder_deps="libfdk_aac"
2778 libfdk_aac_encoder_select="audio_frame_queue"
2779 libgme_demuxer_deps="libgme"
2780 libgsm_decoder_deps="libgsm"
2781 libgsm_encoder_deps="libgsm"
2782 libgsm_ms_decoder_deps="libgsm"
2783 libgsm_ms_encoder_deps="libgsm"
2784 libilbc_decoder_deps="libilbc"
2785 libilbc_encoder_deps="libilbc"
2786 libkvazaar_encoder_deps="libkvazaar"
2787 libmodplug_demuxer_deps="libmodplug"
2788 libmp3lame_encoder_deps="libmp3lame"
2789 libmp3lame_encoder_select="audio_frame_queue"
2790 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2791 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2792 libopencore_amrnb_encoder_select="audio_frame_queue"
2793 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2794 libopenh264_decoder_deps="libopenh264"
2795 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2796 libopenh264_encoder_deps="libopenh264"
2797 libopenjpeg_decoder_deps="libopenjpeg"
2798 libopenjpeg_encoder_deps="libopenjpeg"
2799 libopenmpt_demuxer_deps="libopenmpt"
2800 libopus_decoder_deps="libopus"
2801 libopus_encoder_deps="libopus"
2802 libopus_encoder_select="audio_frame_queue"
2803 libschroedinger_decoder_deps="libschroedinger"
2804 libschroedinger_encoder_deps="libschroedinger"
2805 libshine_encoder_deps="libshine"
2806 libshine_encoder_select="audio_frame_queue"
2807 libspeex_decoder_deps="libspeex"
2808 libspeex_encoder_deps="libspeex"
2809 libspeex_encoder_select="audio_frame_queue"
2810 libtheora_encoder_deps="libtheora"
2811 libtwolame_encoder_deps="libtwolame"
2812 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2813 libvorbis_decoder_deps="libvorbis"
2814 libvorbis_encoder_deps="libvorbis"
2815 libvorbis_encoder_select="audio_frame_queue"
2816 libvpx_vp8_decoder_deps="libvpx"
2817 libvpx_vp8_encoder_deps="libvpx"
2818 libvpx_vp9_decoder_deps="libvpx"
2819 libvpx_vp9_encoder_deps="libvpx"
2820 libwavpack_encoder_deps="libwavpack"
2821 libwebp_encoder_deps="libwebp"
2822 libwebp_anim_encoder_deps="libwebp"
2823 libx262_encoder_deps="libx262"
2824 libx264_encoder_deps="libx264"
2825 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2826 libx264rgb_encoder_select="libx264_encoder"
2827 libx265_encoder_deps="libx265"
2828 libxavs_encoder_deps="libxavs"
2829 libxvid_encoder_deps="libxvid"
2830 libzvbi_teletext_decoder_deps="libzvbi"
2831 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2832 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2833 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2834 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2835 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2836
2837 # demuxers / muxers
2838 ac3_demuxer_select="ac3_parser"
2839 asf_demuxer_select="riffdec"
2840 asf_o_demuxer_select="riffdec"
2841 asf_muxer_select="riffenc"
2842 asf_stream_muxer_select="asf_muxer"
2843 avi_demuxer_select="iso_media riffdec exif"
2844 avi_muxer_select="riffenc"
2845 avisynth_demuxer_deps="avisynth"
2846 avisynth_demuxer_select="riffdec"
2847 caf_demuxer_select="iso_media riffdec"
2848 dash_muxer_select="mp4_muxer"
2849 dirac_demuxer_select="dirac_parser"
2850 dts_demuxer_select="dca_parser"
2851 dtshd_demuxer_select="dca_parser"
2852 dv_demuxer_select="dvprofile"
2853 dv_muxer_select="dvprofile"
2854 dxa_demuxer_select="riffdec"
2855 eac3_demuxer_select="ac3_parser"
2856 f4v_muxer_select="mov_muxer"
2857 fifo_muxer_deps="threads"
2858 flac_demuxer_select="flac_parser"
2859 hds_muxer_select="flv_muxer"
2860 hls_muxer_select="mpegts_muxer"
2861 image2_alias_pix_demuxer_select="image2_demuxer"
2862 image2_brender_pix_demuxer_select="image2_demuxer"
2863 ipod_muxer_select="mov_muxer"
2864 ismv_muxer_select="mov_muxer"
2865 libnut_demuxer_deps="libnut"
2866 libnut_muxer_deps="libnut"
2867 matroska_audio_muxer_select="matroska_muxer"
2868 matroska_demuxer_select="iso_media riffdec"
2869 matroska_demuxer_suggest="bzlib lzo zlib"
2870 matroska_muxer_select="iso_media riffenc"
2871 mmf_muxer_select="riffenc"
2872 mov_demuxer_select="iso_media riffdec"
2873 mov_demuxer_suggest="zlib"
2874 mov_muxer_select="iso_media riffenc rtpenc_chain"
2875 mp3_demuxer_select="mpegaudio_parser"
2876 mp4_muxer_select="mov_muxer"
2877 mpegts_demuxer_select="iso_media"
2878 mpegts_muxer_select="adts_muxer latm_muxer"
2879 mpegtsraw_demuxer_select="mpegts_demuxer"
2880 mxf_d10_muxer_select="mxf_muxer"
2881 mxf_opatom_muxer_select="mxf_muxer"
2882 nut_muxer_select="riffenc"
2883 nuv_demuxer_select="riffdec"
2884 oga_muxer_select="ogg_muxer"
2885 ogg_demuxer_select="dirac_parse"
2886 ogv_muxer_select="ogg_muxer"
2887 opus_muxer_select="ogg_muxer"
2888 psp_muxer_select="mov_muxer"
2889 rtp_demuxer_select="sdp_demuxer"
2890 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2891 rtsp_demuxer_select="http_protocol rtpdec"
2892 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2893 sap_demuxer_select="sdp_demuxer"
2894 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2895 sdp_demuxer_select="rtpdec"
2896 smoothstreaming_muxer_select="ismv_muxer"
2897 spdif_muxer_select="aac_parser"
2898 spx_muxer_select="ogg_muxer"
2899 swf_demuxer_suggest="zlib"
2900 tak_demuxer_select="tak_parser"
2901 tg2_muxer_select="mov_muxer"
2902 tgp_muxer_select="mov_muxer"
2903 vobsub_demuxer_select="mpegps_demuxer"
2904 w64_demuxer_select="wav_demuxer"
2905 w64_muxer_select="wav_muxer"
2906 wav_demuxer_select="riffdec"
2907 wav_muxer_select="riffenc"
2908 webm_muxer_select="iso_media riffenc"
2909 webm_dash_manifest_demuxer_select="matroska_demuxer"
2910 wtv_demuxer_select="mpegts_demuxer riffdec"
2911 wtv_muxer_select="mpegts_muxer riffenc"
2912 xmv_demuxer_select="riffdec"
2913 xwma_demuxer_select="riffdec"
2914
2915 # indevs / outdevs
2916 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2917 alsa_outdev_deps="alsa_asoundlib_h"
2918 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2919 avfoundation_indev_select="avfoundation"
2920 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2921 caca_outdev_deps="libcaca"
2922 decklink_indev_deps="decklink pthreads"
2923 decklink_indev_extralibs="-lstdc++"
2924 decklink_outdev_deps="decklink pthreads"
2925 decklink_outdev_extralibs="-lstdc++"
2926 dshow_indev_deps="IBaseFilter"
2927 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2928 dv1394_indev_deps="dv1394"
2929 dv1394_indev_select="dv_demuxer"
2930 fbdev_indev_deps="linux_fb_h"
2931 fbdev_outdev_deps="linux_fb_h"
2932 gdigrab_indev_deps="CreateDIBSection"
2933 gdigrab_indev_extralibs="-lgdi32"
2934 gdigrab_indev_select="bmp_decoder"
2935 iec61883_indev_deps="libiec61883"
2936 jack_indev_deps="jack_jack_h"
2937 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2938 lavfi_indev_deps="avfilter"
2939 libcdio_indev_deps="libcdio"
2940 libdc1394_indev_deps="libdc1394"
2941 libv4l2_indev_deps="libv4l2"
2942 openal_indev_deps="openal"
2943 opengl_outdev_deps="opengl"
2944 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2945 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2946 pulse_indev_deps="libpulse"
2947 pulse_outdev_deps="libpulse"
2948 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2949 qtkit_indev_select="qtkit"
2950 sdl_outdev_deps="sdl"
2951 sndio_indev_deps="sndio_h"
2952 sndio_outdev_deps="sndio_h"
2953 v4l_indev_deps="linux_videodev_h"
2954 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2955 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2956 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2957 vfwcap_indev_extralibs="-lavicap32"
2958 x11grab_indev_deps="x11grab"
2959 x11grab_xcb_indev_deps="libxcb"
2960 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2961 xv_outdev_extralibs="-lXv -lX11 -lXext"
2962
2963 # protocols
2964 async_protocol_deps="threads"
2965 bluray_protocol_deps="libbluray"
2966 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2967 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2968 ffrtmpcrypt_protocol_select="tcp_protocol"
2969 ffrtmphttp_protocol_deps="!librtmp_protocol"
2970 ffrtmphttp_protocol_select="http_protocol"
2971 ftp_protocol_select="tcp_protocol"
2972 gopher_protocol_select="network"
2973 http_protocol_select="tcp_protocol"
2974 httpproxy_protocol_select="tcp_protocol"
2975 https_protocol_select="tls_protocol"
2976 icecast_protocol_select="http_protocol"
2977 librtmp_protocol_deps="librtmp"
2978 librtmpe_protocol_deps="librtmp"
2979 librtmps_protocol_deps="librtmp"
2980 librtmpt_protocol_deps="librtmp"
2981 librtmpte_protocol_deps="librtmp"
2982 libsmbclient_protocol_deps="libsmbclient gplv3"
2983 libssh_protocol_deps="libssh"
2984 mmsh_protocol_select="http_protocol"
2985 mmst_protocol_select="network"
2986 rtmp_protocol_deps="!librtmp_protocol"
2987 rtmp_protocol_select="tcp_protocol"
2988 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2989 rtmps_protocol_deps="!librtmp_protocol"
2990 rtmps_protocol_select="tls_protocol"
2991 rtmpt_protocol_select="ffrtmphttp_protocol"
2992 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2993 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2994 rtp_protocol_select="udp_protocol"
2995 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2996 sctp_protocol_select="network"
2997 srtp_protocol_select="rtp_protocol srtp"
2998 tcp_protocol_select="network"
2999 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3000 tls_gnutls_protocol_select="tcp_protocol"
3001 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3002 tls_openssl_protocol_select="tcp_protocol"
3003 tls_schannel_protocol_deps="schannel"
3004 tls_schannel_protocol_select="tcp_protocol"
3005 tls_securetransport_protocol_deps="securetransport"
3006 tls_securetransport_protocol_select="tcp_protocol"
3007 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3008 udp_protocol_select="network"
3009 udplite_protocol_select="network"
3010 unix_protocol_deps="sys_un_h"
3011 unix_protocol_select="network"
3012
3013 # filters
3014 afftfilt_filter_deps="avcodec"
3015 afftfilt_filter_select="fft"
3016 amovie_filter_deps="avcodec avformat"
3017 aresample_filter_deps="swresample"
3018 ass_filter_deps="libass"
3019 asyncts_filter_deps="avresample"
3020 atempo_filter_deps="avcodec"
3021 atempo_filter_select="rdft"
3022 azmq_filter_deps="libzmq"
3023 blackframe_filter_deps="gpl"
3024 boxblur_filter_deps="gpl"
3025 bs2b_filter_deps="libbs2b"
3026 colormatrix_filter_deps="gpl"
3027 cover_rect_filter_deps="avcodec avformat gpl"
3028 cropdetect_filter_deps="gpl"
3029 delogo_filter_deps="gpl"
3030 deshake_filter_select="pixelutils"
3031 drawtext_filter_deps="libfreetype"
3032 ebur128_filter_deps="gpl"
3033 eq_filter_deps="gpl"
3034 fftfilt_filter_deps="avcodec"
3035 fftfilt_filter_select="rdft"
3036 find_rect_filter_deps="avcodec avformat gpl"
3037 firequalizer_filter_deps="avcodec"
3038 firequalizer_filter_select="rdft"
3039 flite_filter_deps="libflite"
3040 framerate_filter_select="pixelutils"
3041 frei0r_filter_deps="frei0r dlopen"
3042 frei0r_src_filter_deps="frei0r dlopen"
3043 fspp_filter_deps="gpl"
3044 geq_filter_deps="gpl"
3045 histeq_filter_deps="gpl"
3046 hqdn3d_filter_deps="gpl"
3047 interlace_filter_deps="gpl"
3048 kerndeint_filter_deps="gpl"
3049 ladspa_filter_deps="ladspa dlopen"
3050 loudnorm_filter_deps="libebur128"
3051 mcdeint_filter_deps="avcodec gpl"
3052 movie_filter_deps="avcodec avformat"
3053 mpdecimate_filter_deps="gpl"
3054 mpdecimate_filter_select="pixelutils"
3055 mptestsrc_filter_deps="gpl"
3056 negate_filter_deps="lut_filter"
3057 nnedi_filter_deps="gpl"
3058 ocr_filter_deps="libtesseract"
3059 ocv_filter_deps="libopencv"
3060 owdenoise_filter_deps="gpl"
3061 pan_filter_deps="swresample"
3062 perspective_filter_deps="gpl"
3063 phase_filter_deps="gpl"
3064 pp7_filter_deps="gpl"
3065 pp_filter_deps="gpl postproc"
3066 pullup_filter_deps="gpl"
3067 removelogo_filter_deps="avcodec avformat swscale"
3068 repeatfields_filter_deps="gpl"
3069 resample_filter_deps="avresample"
3070 rubberband_filter_deps="librubberband"
3071 sab_filter_deps="gpl swscale"
3072 scale2ref_filter_deps="swscale"
3073 scale_filter_deps="swscale"
3074 select_filter_select="pixelutils"
3075 showcqt_filter_deps="avcodec avformat swscale"
3076 showcqt_filter_select="fft"
3077 showfreqs_filter_deps="avcodec"
3078 showfreqs_filter_select="fft"
3079 showspectrum_filter_deps="avcodec"
3080 showspectrum_filter_select="fft"
3081 showspectrumpic_filter_deps="avcodec"
3082 showspectrumpic_filter_select="fft"
3083 smartblur_filter_deps="gpl swscale"
3084 sofalizer_filter_deps="netcdf avcodec"
3085 sofalizer_filter_select="fft"
3086 spectrumsynth_filter_deps="avcodec"
3087 spectrumsynth_filter_select="fft"
3088 spp_filter_deps="gpl avcodec"
3089 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3090 stereo3d_filter_deps="gpl"
3091 subtitles_filter_deps="avformat avcodec libass"
3092 super2xsai_filter_deps="gpl"
3093 pixfmts_super2xsai_test_deps="super2xsai_filter"
3094 tinterlace_filter_deps="gpl"
3095 tinterlace_merge_test_deps="tinterlace_filter"
3096 tinterlace_pad_test_deps="tinterlace_filter"
3097 uspp_filter_deps="gpl avcodec"
3098 vaguedenoiser_filter_deps="gpl"
3099 vidstabdetect_filter_deps="libvidstab"
3100 vidstabtransform_filter_deps="libvidstab"
3101 zmq_filter_deps="libzmq"
3102 zoompan_filter_deps="swscale"
3103 zscale_filter_deps="libzimg"
3104 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3105
3106 # examples
3107 avcodec_example_deps="avcodec avutil"
3108 avio_dir_cmd="avformat avutil"
3109 avio_reading="avformat avcodec avutil"
3110 decoding_encoding_example_deps="avcodec avformat avutil"
3111 demuxing_decoding_example_deps="avcodec avformat avutil"
3112 extract_mvs_example_deps="avcodec avformat avutil"
3113 filter_audio_example_deps="avfilter avutil"
3114 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3115 filtering_video_example_deps="avfilter avcodec avformat avutil"
3116 metadata_example_deps="avformat avutil"
3117 muxing_example_deps="avcodec avformat avutil swscale"
3118 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3119 remuxing_example_deps="avcodec avformat avutil"
3120 resampling_audio_example_deps="avutil swresample"
3121 scaling_video_example_deps="avutil swscale"
3122 transcode_aac_example_deps="avcodec avformat swresample"
3123 transcoding_example_deps="avfilter avcodec avformat avutil"
3124
3125 # libraries, in linking order
3126 avcodec_deps="avutil"
3127 avdevice_deps="avformat avcodec avutil"
3128 avfilter_deps="avutil"
3129 avformat_deps="avcodec avutil"
3130 avresample_deps="avutil"
3131 postproc_deps="avutil gpl"
3132 swresample_deps="avutil"
3133 swscale_deps="avutil"
3134
3135 # programs
3136 ffmpeg_deps="avcodec avfilter avformat swresample"
3137 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3138                null_filter
3139                setpts_filter trim_filter"
3140 ffplay_deps="avcodec avformat swscale swresample sdl"
3141 ffplay_libs='$sdl_libs'
3142 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3143 ffprobe_deps="avcodec avformat"
3144 ffserver_deps="avformat fork sarestart"
3145 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3146
3147 # documentation
3148 podpages_deps="perl"
3149 manpages_deps="perl pod2man"
3150 htmlpages_deps="perl"
3151 htmlpages_deps_any="makeinfo_html texi2html"
3152 txtpages_deps="perl makeinfo"
3153 doc_deps_any="manpages htmlpages podpages txtpages"
3154
3155 # default parameters
3156
3157 logfile="config.log"
3158
3159 # installation paths
3160 prefix_default="/usr/local"
3161 bindir_default='${prefix}/bin'
3162 datadir_default='${prefix}/share/ffmpeg'
3163 docdir_default='${prefix}/share/doc/ffmpeg'
3164 incdir_default='${prefix}/include'
3165 libdir_default='${prefix}/lib'
3166 mandir_default='${prefix}/share/man'
3167
3168 # toolchain
3169 ar_default="ar"
3170 cc_default="gcc"
3171 cxx_default="g++"
3172 host_cc_default="gcc"
3173 cp_f="cp -f"
3174 doxygen_default="doxygen"
3175 install="install"
3176 ln_s_default="ln -s -f"
3177 nm_default="nm -g"
3178 objformat="elf"
3179 pkg_config_default=pkg-config
3180 ranlib_default="ranlib"
3181 strip_default="strip"
3182 version_script='--version-script'
3183 yasmexe_default="yasm"
3184 windres_default="windres"
3185
3186 # OS
3187 target_os_default=$(tolower $(uname -s))
3188 host_os=$target_os_default
3189
3190 # machine
3191 if test "$target_os_default" = aix; then
3192     arch_default=$(uname -p)
3193     strip_default="strip -X32_64"
3194 else
3195     arch_default=$(uname -m)
3196 fi
3197 cpu="generic"
3198 intrinsics="none"
3199
3200 # configurable options
3201 enable $PROGRAM_LIST
3202 enable $DOCUMENT_LIST
3203 enable $EXAMPLE_LIST
3204 enable $(filter_out avresample $LIBRARY_LIST)
3205 enable stripping
3206
3207 enable asm
3208 enable debug
3209 enable doc
3210 enable faan faandct faanidct
3211 enable optimizations
3212 enable runtime_cpudetect
3213 enable safe_bitstream_reader
3214 enable static
3215 enable swscale_alpha
3216 enable valgrind_backtrace
3217
3218 sws_max_filter_size_default=256
3219 set_default sws_max_filter_size
3220
3221 # Enable platform codecs by default.
3222 enable audiotoolbox
3223
3224 # Enable hwaccels by default.
3225 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3226 enable xlib
3227
3228 enable nvenc vda_framework videotoolbox videotoolbox_encoder
3229
3230 # build settings
3231 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3232 LIBPREF="lib"
3233 LIBSUF=".a"
3234 FULLNAME='$(NAME)$(BUILDSUF)'
3235 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3236 SLIBPREF="lib"
3237 SLIBSUF=".so"
3238 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3239 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3240 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3241 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3242 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3243 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3244 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3245
3246 asflags_filter=echo
3247 cflags_filter=echo
3248 ldflags_filter=echo
3249
3250 AS_C='-c'
3251 AS_O='-o $@'
3252 CC_C='-c'
3253 CC_E='-E -o $@'
3254 CC_O='-o $@'
3255 CXX_C='-c'
3256 CXX_O='-o $@'
3257 OBJCC_C='-c'
3258 OBJCC_E='-E -o $@'
3259 OBJCC_O='-o $@'
3260 LD_O='-o $@'
3261 LD_LIB='-l%'
3262 LD_PATH='-L'
3263 HOSTCC_C='-c'
3264 HOSTCC_E='-E -o $@'
3265 HOSTCC_O='-o $@'
3266 HOSTLD_O='-o $@'
3267
3268 host_libs='-lm'
3269 host_cflags_filter=echo
3270 host_ldflags_filter=echo
3271
3272 target_path='$(CURDIR)'
3273
3274 # since the object filename is not given with the -MM flag, the compiler
3275 # is only able to print the basename, and we must add the path ourselves
3276 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3277 DEPFLAGS='-MM'
3278
3279 # find source path
3280 if test -f configure; then
3281     source_path=.
3282 else
3283     source_path=$(cd $(dirname "$0"); pwd)
3284     case "$source_path" in
3285         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3286     esac
3287     test -e "$source_path/config.h" &&
3288         die "Out of tree builds are impossible with config.h in source dir."
3289 fi
3290
3291 for v in "$@"; do
3292     r=${v#*=}
3293     l=${v%"$r"}
3294     r=$(sh_quote "$r")
3295     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3296 done
3297
3298 find_things(){
3299     thing=$1
3300     pattern=$2
3301     file=$source_path/$3
3302     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3303 }
3304
3305 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3306 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3307 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3308 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3309 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3310 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3311 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3312 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3313 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3314
3315 find_things_extern(){
3316     thing=$1
3317     pattern=$2
3318     file=$source_path/$3
3319     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3320 }
3321
3322 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3323 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3324
3325 ALL_COMPONENTS="
3326     $BSF_LIST
3327     $DECODER_LIST
3328     $DEMUXER_LIST
3329     $ENCODER_LIST
3330     $FILTER_LIST
3331     $HWACCEL_LIST
3332     $INDEV_LIST
3333     $MUXER_LIST
3334     $OUTDEV_LIST
3335     $PARSER_LIST
3336     $PROTOCOL_LIST
3337 "
3338
3339 for n in $COMPONENT_LIST; do
3340     v=$(toupper ${n%s})_LIST
3341     eval enable \$$v
3342     eval ${n}_if_any="\$$v"
3343 done
3344
3345 enable $ARCH_EXT_LIST
3346
3347 die_unknown(){
3348     echo "Unknown option \"$1\"."
3349     echo "See $0 --help for available options."
3350     exit 1
3351 }
3352
3353 print_in_columns() {
3354     cols=$(expr $ncols / 24)
3355     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3356 }
3357
3358 show_list() {
3359     suffix=_$1
3360     shift
3361     echo $* | sed s/$suffix//g | print_in_columns
3362     exit 0
3363 }
3364
3365 rand_list(){
3366     IFS=', '
3367     set -- $*
3368     unset IFS
3369     for thing; do
3370         comp=${thing%:*}
3371         prob=${thing#$comp}
3372         prob=${prob#:}
3373         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3374         echo "prob ${prob:-0.5}"
3375         printf '%s\n' $comp
3376     done
3377 }
3378
3379 do_random(){
3380     action=$1
3381     shift
3382     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3383     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3384 }
3385
3386 for opt do
3387     optval="${opt#*=}"
3388     case "$opt" in
3389         --extra-ldflags=*)
3390             add_ldflags $optval
3391         ;;
3392         --extra-ldexeflags=*)
3393             add_ldexeflags $optval
3394         ;;
3395         --extra-ldlibflags=*)
3396             add_ldlibflags $optval
3397         ;;
3398         --extra-libs=*)
3399             add_extralibs $optval
3400         ;;
3401         --disable-devices)
3402             disable $INDEV_LIST $OUTDEV_LIST
3403         ;;
3404         --enable-debug=*)
3405             debuglevel="$optval"
3406         ;;
3407         --disable-programs)
3408             disable $PROGRAM_LIST
3409         ;;
3410         --disable-everything)
3411             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3412         ;;
3413         --disable-all)
3414             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3415             disable $LIBRARY_LIST $PROGRAM_LIST doc
3416             enable avutil
3417         ;;
3418         --enable-random|--disable-random)
3419             action=${opt%%-random}
3420             do_random ${action#--} $COMPONENT_LIST
3421         ;;
3422         --enable-random=*|--disable-random=*)
3423             action=${opt%%-random=*}
3424             do_random ${action#--} $optval
3425         ;;
3426         --enable-*=*|--disable-*=*)
3427             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3428             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3429             eval list=\$$(toupper $thing)_LIST
3430             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3431             list=$(filter "$name" $list)
3432             [ "$list" = "" ] && warn "Option $opt did not match anything"
3433             $action $list
3434         ;;
3435         --enable-?*|--disable-?*)
3436             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3437             if is_in $option $COMPONENT_LIST; then
3438                 test $action = disable && action=unset
3439                 eval $action \$$(toupper ${option%s})_LIST
3440             elif is_in $option $CMDLINE_SELECT; then
3441                 $action $option
3442             else
3443                 die_unknown $opt
3444             fi
3445         ;;
3446         --list-*)
3447             NAME="${opt#--list-}"
3448             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3449             NAME=${NAME%s}
3450             eval show_list $NAME \$$(toupper $NAME)_LIST
3451         ;;
3452         --help|-h) show_help
3453         ;;
3454         --fatal-warnings) enable fatal_warnings
3455         ;;
3456         *)
3457             optname="${opt%%=*}"
3458             optname="${optname#--}"
3459             optname=$(echo "$optname" | sed 's/-/_/g')
3460             if is_in $optname $CMDLINE_SET; then
3461                 eval $optname='$optval'
3462             elif is_in $optname $CMDLINE_APPEND; then
3463                 append $optname "$optval"
3464             else
3465                 die_unknown $opt
3466             fi
3467         ;;
3468     esac
3469 done
3470
3471 for e in $env; do
3472     eval "export $e"
3473 done
3474
3475 disabled logging && logfile=/dev/null
3476
3477 # Disable all the library-specific components if the library itself
3478 # is disabled, see AVCODEC_LIST and following _LIST variables.
3479
3480 disable_components(){
3481     disabled ${1} && disable $(
3482         eval components="\$$(toupper ${1})_COMPONENTS"
3483         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3484     )
3485 }
3486
3487 map 'disable_components $v' $LIBRARY_LIST
3488
3489 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3490 set >> $logfile
3491
3492 test -n "$valgrind" && toolchain="valgrind-memcheck"
3493
3494 case "$toolchain" in
3495     *-asan)
3496         cc_default="${toolchain%-asan}"
3497         add_cflags  -fsanitize=address
3498         add_ldflags -fsanitize=address
3499     ;;
3500     *-msan)
3501         cc_default="${toolchain%-msan}"
3502         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3503         add_ldflags -fsanitize=memory
3504     ;;
3505     *-tsan)
3506         cc_default="${toolchain%-tsan}"
3507         add_cflags  -fsanitize=thread -pie
3508         add_ldflags -fsanitize=thread -pie
3509         case "$toolchain" in
3510             gcc-tsan)
3511                 add_cflags  -fPIC
3512                 add_ldflags -fPIC
3513                 ;;
3514         esac
3515     ;;
3516     *-usan)
3517         cc_default="${toolchain%-usan}"
3518         add_cflags  -fsanitize=undefined
3519         add_ldflags -fsanitize=undefined
3520     ;;
3521     valgrind-*)
3522         target_exec_default="valgrind"
3523         case "$toolchain" in
3524             valgrind-massif)
3525                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3526                 ;;
3527             valgrind-memcheck)
3528                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3529                 ;;
3530         esac
3531     ;;
3532     msvc)
3533         # Check whether the current MSVC version needs the C99 converter.
3534         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3535         # support enough of C99 to build ffmpeg. Default to the new
3536         # behaviour if the regexp was unable to match anything, since this
3537         # successfully parses the version number of existing supported
3538         # versions that require the converter (MSVC 2010 and 2012).
3539         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3540         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3541             cc_default="cl"
3542         else
3543             cc_default="c99wrap cl"
3544         fi
3545         ld_default="$source_path/compat/windows/mslink"
3546         nm_default="dumpbin -symbols"
3547         ar_default="lib"
3548         case "$arch" in
3549         arm*)
3550             as_default="armasm"
3551             ;;
3552         esac
3553         target_os_default="win32"
3554         # Use a relative path for TMPDIR. This makes sure all the
3555         # ffconf temp files are written with a relative path, avoiding
3556         # issues with msys/win32 path conversion for MSVC parameters
3557         # such as -Fo<file> or -out:<file>.
3558         TMPDIR=.
3559     ;;
3560     icl)
3561         cc_default="icl"
3562         ld_default="xilink"
3563         nm_default="dumpbin -symbols"
3564         ar_default="xilib"
3565         target_os_default="win32"
3566         TMPDIR=.
3567     ;;
3568     gcov)
3569         add_cflags  -fprofile-arcs -ftest-coverage
3570         add_ldflags -fprofile-arcs -ftest-coverage
3571     ;;
3572     llvm-cov)
3573         add_cflags -fprofile-arcs -ftest-coverage
3574         add_ldflags --coverage
3575     ;;
3576     hardened)
3577         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3578         add_cflags   -fno-strict-overflow -fstack-protector-all
3579         add_ldflags  -Wl,-z,relro -Wl,-z,now
3580     ;;
3581     ?*)
3582         die "Unknown toolchain $toolchain"
3583     ;;
3584 esac
3585
3586 test -n "$cross_prefix" && enable cross_compile
3587
3588 if enabled cross_compile; then
3589     test -n "$arch" && test -n "$target_os" ||
3590         die "Must specify target arch and OS when cross-compiling"
3591 fi
3592
3593 ar_default="${cross_prefix}${ar_default}"
3594 cc_default="${cross_prefix}${cc_default}"
3595 cxx_default="${cross_prefix}${cxx_default}"
3596 nm_default="${cross_prefix}${nm_default}"
3597 pkg_config_default="${cross_prefix}${pkg_config_default}"
3598 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3599     ranlib_default="${cross_prefix}${ranlib_default} -D"
3600 else
3601     ranlib_default="${cross_prefix}${ranlib_default}"
3602 fi
3603 strip_default="${cross_prefix}${strip_default}"
3604 windres_default="${cross_prefix}${windres_default}"
3605
3606 sysinclude_default="${sysroot}/usr/include"
3607
3608 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3609     target_exec target_os yasmexe
3610 enabled cross_compile || host_cc_default=$cc
3611 set_default host_cc
3612
3613 pkg_config_fail_message=""
3614 if ! $pkg_config --version >/dev/null 2>&1; then
3615     warn "$pkg_config not found, library detection may fail."
3616     pkg_config=false
3617 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3618     pkg_config_fail_message="
3619 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3620 fi
3621
3622 if test $doxygen != $doxygen_default && \
3623   ! $doxygen --version >/dev/null 2>&1; then
3624     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3625 fi
3626
3627 exesuf() {
3628     case $1 in
3629         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3630     esac
3631 }
3632
3633 EXESUF=$(exesuf $target_os)
3634 HOSTEXESUF=$(exesuf $host_os)
3635
3636 # set temporary file name
3637 : ${TMPDIR:=$TEMPDIR}
3638 : ${TMPDIR:=$TMP}
3639 : ${TMPDIR:=/tmp}
3640
3641 if [ -n "$tempprefix" ] ; then
3642     mktemp(){
3643         echo $tempprefix.${HOSTNAME}.${UID}
3644     }
3645 elif ! check_cmd mktemp -u XXXXXX; then
3646     # simple replacement for missing mktemp
3647     # NOT SAFE FOR GENERAL USE
3648     mktemp(){
3649         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3650     }
3651 fi
3652
3653 tmpfile(){
3654     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3655         (set -C; exec > $tmp) 2>/dev/null ||
3656         die "Unable to create temporary file in $TMPDIR."
3657     append TMPFILES $tmp
3658     eval $1=$tmp
3659 }
3660
3661 trap 'rm -f -- $TMPFILES' EXIT
3662
3663 tmpfile TMPASM .asm
3664 tmpfile TMPC   .c
3665 tmpfile TMPCPP .cpp
3666 tmpfile TMPE   $EXESUF
3667 tmpfile TMPH   .h
3668 tmpfile TMPM   .m
3669 tmpfile TMPO   .o
3670 tmpfile TMPS   .S
3671 tmpfile TMPSH  .sh
3672 tmpfile TMPV   .ver
3673
3674 unset -f mktemp
3675
3676 chmod +x $TMPE
3677
3678 # make sure we can execute files in $TMPDIR
3679 cat > $TMPSH 2>> $logfile <<EOF
3680 #! /bin/sh
3681 EOF
3682 chmod +x $TMPSH >> $logfile 2>&1
3683 if ! $TMPSH >> $logfile 2>&1; then
3684     cat <<EOF
3685 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3686 variable to another directory and make sure that it is not mounted noexec.
3687 EOF
3688     die "Sanity test failed."
3689 fi
3690
3691 armasm_flags(){
3692     for flag; do
3693         case $flag in
3694             # Filter out MSVC cl.exe options from cflags that shouldn't
3695             # be passed to gas-preprocessor
3696             -M[TD]*)                                            ;;
3697             *)                  echo $flag                      ;;
3698         esac
3699    done
3700 }
3701
3702 ccc_flags(){
3703     for flag; do
3704         case $flag in
3705             -std=c99)           echo -c99                       ;;
3706             -mcpu=*)            echo -arch ${flag#*=}           ;;
3707             -mieee)             echo -ieee                      ;;
3708             -O*|-fast)          echo $flag                      ;;
3709             -fno-math-errno)    echo -assume nomath_errno       ;;
3710             -g)                 echo -g3                        ;;
3711             -Wall)              echo -msg_enable level2         ;;
3712             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3713             -Wl,*)              echo $flag                      ;;
3714             -f*|-W*)                                            ;;
3715             *)                  echo $flag                      ;;
3716         esac
3717    done
3718 }
3719
3720 cparser_flags(){
3721     for flag; do
3722         case $flag in
3723             -Wno-switch)             echo -Wno-switch-enum ;;
3724             -Wno-format-zero-length) ;;
3725             -Wdisabled-optimization) ;;
3726             -Wno-pointer-sign)       echo -Wno-other ;;
3727             *)                       echo $flag ;;
3728         esac
3729     done
3730 }
3731
3732 msvc_common_flags(){
3733     for flag; do
3734         case $flag in
3735             # In addition to specifying certain flags under the compiler
3736             # specific filters, they must be specified here as well or else the
3737             # generic catch all at the bottom will print the original flag.
3738             -Wall)                ;;
3739             -std=c99)             ;;
3740             # Common flags
3741             -fomit-frame-pointer) ;;
3742             -g)                   echo -Z7 ;;
3743             -fno-math-errno)      ;;
3744             -fno-common)          ;;
3745             -fno-signed-zeros)    ;;
3746             -fPIC)                ;;
3747             -mthumb)              ;;
3748             -march=*)             ;;
3749             -lz)                  echo zlib.lib ;;
3750             -lavifil32)           echo vfw32.lib ;;
3751             -lavicap32)           echo vfw32.lib user32.lib ;;
3752             -lx264)               echo libx264.lib ;;
3753             -l*)                  echo ${flag#-l}.lib ;;
3754             -LARGEADDRESSAWARE)   echo $flag ;;
3755             -L*)                  echo -libpath:${flag#-L} ;;
3756             *)                    echo $flag ;;
3757         esac
3758     done
3759 }
3760
3761 msvc_flags(){
3762     msvc_common_flags "$@"
3763     for flag; do
3764         case $flag in
3765             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3766                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3767                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3768                                        -wd4307 \
3769                                        -wd4273 -wd4554 -wd4701 ;;
3770         esac
3771     done
3772 }
3773
3774 icl_flags(){
3775     msvc_common_flags "$@"
3776     for flag; do
3777         case $flag in
3778             # Despite what Intel's documentation says -Wall, which is supported
3779             # on Windows, does enable remarks so disable them here.
3780             -Wall)                echo $flag -Qdiag-disable:remark ;;
3781             -std=c99)             echo -Qstd=c99 ;;
3782             -flto)                echo -ipo ;;
3783         esac
3784     done
3785 }
3786
3787 icc_flags(){
3788     for flag; do
3789         case $flag in
3790             -flto)                echo -ipo ;;
3791             *)                    echo $flag ;;
3792         esac
3793     done
3794 }
3795
3796 pgi_flags(){
3797     for flag; do
3798         case $flag in
3799             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3800             -fomit-frame-pointer) echo -Mnoframe ;;
3801             -g)                   echo -gopt ;;
3802             *)                    echo $flag ;;
3803         esac
3804     done
3805 }
3806
3807 suncc_flags(){
3808     for flag; do
3809         case $flag in
3810             -march=*|-mcpu=*)
3811                 case "${flag#*=}" in
3812                     native)                   echo -xtarget=native       ;;
3813                     v9|niagara)               echo -xarch=sparc          ;;
3814                     ultrasparc)               echo -xarch=sparcvis       ;;
3815                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3816                     i586|pentium)             echo -xchip=pentium        ;;
3817                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3818                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3819                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3820                     pentium4*)          echo -xtarget=pentium4           ;;
3821                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3822                     *-sse3)             echo -xarch=sse3                 ;;
3823                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3824                     bonnell)                   echo -xarch=ssse3         ;;
3825                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3826                     westmere)                  echo -xtarget=westmere    ;;
3827                     silvermont)                echo -xarch=sse4_2        ;;
3828                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3829                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3830                                                echo -xarch=avx           ;;
3831                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3832                     btver1)                    echo -xarch=amdsse4a      ;;
3833                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3834                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3835                     k8|opteron|athlon64|athlon-fx)
3836                                                echo -xarch=sse2a         ;;
3837                     athlon*)                   echo -xarch=pentium_proa  ;;
3838                 esac
3839                 ;;
3840             -std=c99)             echo -xc99              ;;
3841             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3842             -fPIC)                echo -KPIC -xcode=pic32 ;;
3843             -W*,*)                echo $flag              ;;
3844             -f*-*|-W*|-mimpure-text)                      ;;
3845             -shared)              echo -G                 ;;
3846             *)                    echo $flag              ;;
3847         esac
3848     done
3849 }
3850
3851 tms470_flags(){
3852     for flag; do
3853         case $flag in
3854             -march=*|-mcpu=*)
3855                 case "${flag#*=}" in
3856                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3857                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3858                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3859                     armv6*|arm11*)          echo -mv=6   ;;
3860                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3861                                             echo -mv=5e  ;;
3862                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3863                 esac
3864                 ;;
3865             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3866             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3867             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3868             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3869             -msoft-float)   echo --float_support=vfplib       ;;
3870             -O[0-3]|-mf=*)  echo $flag                        ;;
3871             -g)             echo -g -mn                       ;;
3872             -pds=*)         echo $flag                        ;;
3873             -D*|-I*)        echo $flag                        ;;
3874             --gcc|--abi=*)  echo $flag                        ;;
3875             -me)            echo $flag                        ;;
3876         esac
3877     done
3878 }
3879
3880 probe_cc(){
3881     pfx=$1
3882     _cc=$2
3883     first=$3
3884
3885     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3886     unset _ld_o _ldflags _ld_lib _ld_path
3887     unset _depflags _DEPCMD _DEPFLAGS
3888     _flags_filter=echo
3889
3890     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3891         true # no-op to avoid reading stdin in following checks
3892     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3893         _type=llvm_gcc
3894         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3895         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3896         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3897         _cflags_speed='-O3'
3898         _cflags_size='-Os'
3899     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3900         _type=gcc
3901         gcc_version=$($_cc --version | head -n1)
3902         gcc_basever=$($_cc -dumpversion)
3903         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3904         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3905         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3906         case $gcc_basever in
3907             2) ;;
3908             2.*) ;;
3909             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3910         esac
3911         if [ "$first" = true ]; then
3912             case $gcc_basever in
3913                 4.2*)
3914                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3915             esac
3916         fi
3917         _cflags_speed='-O3'
3918         _cflags_size='-Os'
3919     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3920         _type=icc
3921         _ident=$($_cc --version | head -n1)
3922         _depflags='-MMD'
3923         _cflags_speed='-O3'
3924         _cflags_size='-Os'
3925         _cflags_noopt='-O1'
3926         _flags_filter=icc_flags
3927     elif $_cc -v 2>&1 | grep -q xlc; then
3928         _type=xlc
3929         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3930         _cflags_speed='-O5'
3931         _cflags_size='-O5 -qcompact'
3932     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3933         _type=ccc
3934         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3935         _DEPFLAGS='-M'
3936         _cflags_speed='-fast'
3937         _cflags_size='-O1'
3938         _flags_filter=ccc_flags
3939     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3940         test -d "$sysroot" || die "No valid sysroot specified."
3941         _type=armcc
3942         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3943         armcc_conf="$PWD/armcc.conf"
3944         $_cc --arm_linux_configure                 \
3945              --arm_linux_config_file="$armcc_conf" \
3946              --configure_sysroot="$sysroot"        \
3947              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3948              die "Error creating armcc configuration file."
3949         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3950         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3951         as_default="${cross_prefix}gcc"
3952         _depflags='-MMD'
3953         _cflags_speed='-O3'
3954         _cflags_size='-Os'
3955     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3956         _type=tms470
3957         _ident=$($_cc -version | head -n1 | tr -s ' ')
3958         _flags='--gcc --abi=eabi -me'
3959         _cc_e='-ppl -fe=$@'
3960         _cc_o='-fe=$@'
3961         _depflags='-ppa -ppd=$(@:.o=.d)'
3962         _cflags_speed='-O3 -mf=5'
3963         _cflags_size='-O3 -mf=2'
3964         _flags_filter=tms470_flags
3965     elif $_cc -v 2>&1 | grep -q clang; then
3966         _type=clang
3967         _ident=$($_cc --version 2>/dev/null | head -n1)
3968         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3969         _cflags_speed='-O3'
3970         _cflags_size='-Os'
3971     elif $_cc -V 2>&1 | grep -q Sun; then
3972         _type=suncc
3973         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3974         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3975         _DEPFLAGS='-xM1 -xc99'
3976         _ldflags='-std=c99'
3977         _cflags_speed='-O5'
3978         _cflags_size='-O5 -xspace'
3979         _flags_filter=suncc_flags
3980     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3981         _type=pathscale
3982         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3983         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3984         _cflags_speed='-O2'
3985         _cflags_size='-Os'
3986         _flags_filter='filter_out -Wdisabled-optimization'
3987     elif $_cc -v 2>&1 | grep -q Open64; then
3988         _type=open64
3989         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3990         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3991         _cflags_speed='-O2'
3992         _cflags_size='-Os'
3993         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3994     elif $_cc -V 2>&1 | grep -q Portland; then
3995         _type=pgi
3996         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3997         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3998         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3999         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4000         _cflags_noopt="-O"
4001         _flags_filter=pgi_flags
4002     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4003         _type=armasm
4004         _ident=$($_cc | head -n1)
4005         # 4509: "This form of conditional instruction is deprecated"
4006         _flags="-nologo -ignore 4509"
4007         _flags_filter=armasm_flags
4008     elif $_cc 2>&1 | grep -q Intel; then
4009         _type=icl
4010         _ident=$($_cc 2>&1 | head -n1)
4011         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4012         # Not only is O3 broken on 13.x+ but it is slower on all previous
4013         # versions (tested) as well.
4014         _cflags_speed="-O2"
4015         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4016         if $_cc 2>&1 | grep -q Linker; then
4017             _ld_o='-out:$@'
4018         else
4019             _ld_o='-Fe$@'
4020         fi
4021         _cc_o='-Fo$@'
4022         _cc_e='-P'
4023         _flags_filter=icl_flags
4024         _ld_lib='lib%.a'
4025         _ld_path='-libpath:'
4026         # -Qdiag-error to make icl error when seeing certain unknown arguments
4027         _flags='-nologo -Qdiag-error:4044,10157'
4028         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4029         # with MSVC which enables it by default.
4030         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4031         disable stripping
4032     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4033         _type=msvc
4034         _ident=$($_cc 2>&1 | head -n1)
4035         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4036         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4037         _cflags_speed="-O2"
4038         _cflags_size="-O1"
4039         if $_cc -nologo- 2>&1 | grep -q Linker; then
4040             _ld_o='-out:$@'
4041         else
4042             _ld_o='-Fe$@'
4043         fi
4044         _cc_o='-Fo$@'
4045         _cc_e='-P -Fi$@'
4046         _flags_filter=msvc_flags
4047         _ld_lib='lib%.a'
4048         _ld_path='-libpath:'
4049         _flags='-nologo'
4050         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4051         disable stripping
4052     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4053         _type=cparser
4054         _ident=$($_cc --version | head -n1)
4055         _depflags='-MMD'
4056         _cflags_speed='-O4'
4057         _cflags_size='-O2'
4058         _flags_filter=cparser_flags
4059     fi
4060
4061     eval ${pfx}_type=\$_type
4062     eval ${pfx}_ident=\$_ident
4063 }
4064
4065 set_ccvars(){
4066     eval ${1}_C=\${_cc_c-\${${1}_C}}
4067     eval ${1}_E=\${_cc_e-\${${1}_E}}
4068     eval ${1}_O=\${_cc_o-\${${1}_O}}
4069
4070     if [ -n "$_depflags" ]; then
4071         eval ${1}_DEPFLAGS=\$_depflags
4072     else
4073         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4074         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4075         eval DEP${1}FLAGS=\$_flags
4076     fi
4077 }
4078
4079 probe_cc cc "$cc" "true"
4080 cflags_filter=$_flags_filter
4081 cflags_speed=$_cflags_speed
4082 cflags_size=$_cflags_size
4083 cflags_noopt=$_cflags_noopt
4084 add_cflags $_flags $_cflags
4085 cc_ldflags=$_ldflags
4086 set_ccvars CC