Merge commit '601f8dde13ccd0e1993b7840a0304fa2cfe53432'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112   --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-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
227   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
228   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
229   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
230   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
231   --enable-libgme          enable Game Music Emu via libgme [no]
232   --enable-libgsm          enable GSM de/encoding via libgsm [no]
233   --enable-libiec61883     enable iec61883 via libiec61883 [no]
234   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
235   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
236   --enable-libmodplug      enable ModPlug via libmodplug [no]
237   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
238   --enable-libnut          enable NUT (de)muxing via libnut,
239                            native (de)muxer exists [no]
240   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
241   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
242   --enable-libopencv       enable video filtering via libopencv [no]
243   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
244   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
245   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
246   --enable-libopus         enable Opus de/encoding via libopus [no]
247   --enable-libpulse        enable Pulseaudio input via libpulse [no]
248   --enable-librubberband   enable rubberband needed for rubberband filter [no]
249   --enable-librtmp         enable RTMP[E] support via librtmp [no]
250   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
251   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
252   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
253   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
254   --enable-libsoxr         enable Include libsoxr resampling [no]
255   --enable-libspeex        enable Speex de/encoding via libspeex [no]
256   --enable-libssh          enable SFTP protocol via libssh [no]
257   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
258   --enable-libtheora       enable Theora encoding via libtheora [no]
259   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
260   --enable-libv4l2         enable libv4l2/v4l-utils [no]
261   --enable-libvidstab      enable video stabilization using vid.stab [no]
262   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
263   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
264                            native implementation exists [no]
265   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
266   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
267   --enable-libwebp         enable WebP encoding via libwebp [no]
268   --enable-libx264         enable H.264 encoding via x264 [no]
269   --enable-libx265         enable HEVC encoding via x265 [no]
270   --enable-libxavs         enable AVS encoding via xavs [no]
271   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
272   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
273   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
274   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
275   --enable-libxvid         enable Xvid encoding via xvidcore,
276                            native MPEG-4/Xvid encoder exists [no]
277   --enable-libzimg         enable z.lib, needed for zscale filter [no]
278   --enable-libzmq          enable message passing via libzmq [no]
279   --enable-libzvbi         enable teletext support via libzvbi [no]
280   --disable-lzma           disable lzma [autodetect]
281   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
282   --enable-mediacodec      enable Android MediaCodec support [no]
283   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl2           disable sdl2 [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --disable-xlib           disable xlib [autodetect]
295   --disable-zlib           disable zlib [autodetect]
296
297   The following libraries provide various hardware acceleration features:
298   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
299   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
300   --disable-cuvid          disable Nvidia CUVID support [autodetect]
301   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
302   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
303   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
304   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
305   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
306   --disable-nvenc          disable Nvidia video encoding code [autodetect]
307   --enable-omx             enable OpenMAX IL code [no]
308   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
309   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
310   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
311   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
312   --disable-videotoolbox   disable VideoToolbox code [autodetect]
313
314 Toolchain options:
315   --arch=ARCH              select architecture [$arch]
316   --cpu=CPU                select the minimum required CPU (affects
317                            instruction selection, may crash on older CPUs)
318   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
319   --progs-suffix=SUFFIX    program name suffix []
320   --enable-cross-compile   assume a cross-compiler is used
321   --sysroot=PATH           root of cross-build tree
322   --sysinclude=PATH        location of cross-build system headers
323   --target-os=OS           compiler targets OS [$target_os]
324   --target-exec=CMD        command to run executables on target
325   --target-path=DIR        path to view of build directory on target
326   --target-samples=DIR     path to samples directory on target
327   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
328   --toolchain=NAME         set tool defaults according to NAME
329   --nm=NM                  use nm tool NM [$nm_default]
330   --ar=AR                  use archive tool AR [$ar_default]
331   --as=AS                  use assembler AS [$as_default]
332   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
333   --strip=STRIP            use strip tool STRIP [$strip_default]
334   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
335   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
336   --cc=CC                  use C compiler CC [$cc_default]
337   --cxx=CXX                use C compiler CXX [$cxx_default]
338   --objcc=OCC              use ObjC compiler OCC [$cc_default]
339   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
340   --ld=LD                  use linker LD [$ld_default]
341   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
342   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
343   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
344   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
345   --host-cc=HOSTCC         use host C compiler HOSTCC
346   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
347   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
348   --host-ld=HOSTLD         use host linker HOSTLD
349   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
350   --host-libs=HLIBS        use libs HLIBS when linking for host
351   --host-os=OS             compiler host OS [$target_os]
352   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
353   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
354   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
355   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
356   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
357   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
358   --extra-libs=ELIBS       add ELIBS [$ELIBS]
359   --extra-version=STRING   version string suffix []
360   --optflags=OPTFLAGS      override optimization-related compiler flags
361   --build-suffix=SUFFIX    library name suffix []
362   --enable-pic             build position-independent code
363   --enable-thumb           compile for Thumb instruction set
364   --enable-lto             use link-time optimization
365   --env="ENV=override"     override the environment variables
366
367 Advanced options (experts only):
368   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
369   --custom-allocator=NAME  use a supported custom allocator
370   --disable-symver         disable symbol versioning
371   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
372   --disable-safe-bitstream-reader
373                            disable buffer boundary checking in bitreaders
374                            (faster, but may crash)
375   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
376
377 Optimization options (experts only):
378   --disable-asm            disable all assembly optimizations
379   --disable-altivec        disable AltiVec optimizations
380   --disable-vsx            disable VSX optimizations
381   --disable-power8         disable POWER8 optimizations
382   --disable-amd3dnow       disable 3DNow! optimizations
383   --disable-amd3dnowext    disable 3DNow! extended optimizations
384   --disable-mmx            disable MMX optimizations
385   --disable-mmxext         disable MMXEXT optimizations
386   --disable-sse            disable SSE optimizations
387   --disable-sse2           disable SSE2 optimizations
388   --disable-sse3           disable SSE3 optimizations
389   --disable-ssse3          disable SSSE3 optimizations
390   --disable-sse4           disable SSE4 optimizations
391   --disable-sse42          disable SSE4.2 optimizations
392   --disable-avx            disable AVX optimizations
393   --disable-xop            disable XOP optimizations
394   --disable-fma3           disable FMA3 optimizations
395   --disable-fma4           disable FMA4 optimizations
396   --disable-avx2           disable AVX2 optimizations
397   --disable-aesni          disable AESNI optimizations
398   --disable-armv5te        disable armv5te optimizations
399   --disable-armv6          disable armv6 optimizations
400   --disable-armv6t2        disable armv6t2 optimizations
401   --disable-vfp            disable VFP optimizations
402   --disable-neon           disable NEON optimizations
403   --disable-inline-asm     disable use of inline assembly
404   --disable-yasm           disable use of nasm/yasm assembly
405   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
406   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
407   --disable-msa            disable MSA optimizations
408   --disable-mipsfpu        disable floating point MIPS optimizations
409   --disable-mmi            disable Loongson SIMD optimizations
410   --disable-fast-unaligned consider unaligned accesses slow
411
412 Developer options (useful when working on FFmpeg itself):
413   --disable-debug          disable debugging symbols
414   --enable-debug=LEVEL     set the debug level [$debuglevel]
415   --disable-optimizations  disable compiler optimizations
416   --enable-extra-warnings  enable more compiler warnings
417   --disable-stripping      disable stripping of executables and shared libraries
418   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
419                            2 causes a slowdown at runtime.
420   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
421   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
422                            leaks and errors, using the specified valgrind binary.
423                            Cannot be combined with --target-exec
424   --enable-ftrapv          Trap arithmetic overflows
425   --samples=PATH           location of test samples for FATE, if not set use
426                            \$FATE_SAMPLES at make invocation time.
427   --enable-neon-clobber-test check NEON registers for clobbering (should be
428                            used only for debugging purposes)
429   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
430                            should be used only for debugging purposes)
431   --enable-random          randomly enable/disable components
432   --disable-random
433   --enable-random=LIST     randomly enable/disable specific components or
434   --disable-random=LIST    component groups. LIST is a comma-separated list
435                            of NAME[:PROB] entries where NAME is a component
436                            (group) and PROB the probability associated with
437                            NAME (default 0.5).
438   --random-seed=VALUE      seed value for --enable/disable-random
439   --disable-valgrind-backtrace do not print a backtrace under Valgrind
440                            (only applies to --disable-optimizations builds)
441
442 NOTE: Object files are built at the place where configure is launched.
443 EOF
444   exit 0
445 }
446
447 quotes='""'
448 if test -t 1 && which tput >/dev/null 2>&1; then
449     ncolors=$(tput colors)
450     if test -n "$ncolors" && test $ncolors -ge 8; then
451         bold_color=$(tput bold)
452         warn_color=$(tput setaf 3)
453         error_color=$(tput setaf 1)
454         reset_color=$(tput sgr0)
455     fi
456     # 72 used instead of 80 since that's the default of pr
457     ncols=$(tput cols)
458 fi
459 : ${ncols:=72}
460
461 log(){
462     echo "$@" >> $logfile
463 }
464
465 log_file(){
466     log BEGIN $1
467     pr -n -t $1 >> $logfile
468     log END $1
469 }
470
471 warn(){
472     log "WARNING: $*"
473     WARNINGS="${WARNINGS}WARNING: $*\n"
474 }
475
476 die(){
477     log "$@"
478     echo "$error_color$bold_color$@$reset_color"
479     cat <<EOF
480
481 If you think configure made a mistake, make sure you are using the latest
482 version from Git.  If the latest version fails, report the problem to the
483 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
484 EOF
485     if disabled logging; then
486         cat <<EOF
487 Rerun configure with logging enabled (do not use --disable-logging), and
488 include the log this produces with your report.
489 EOF
490     else
491         cat <<EOF
492 Include the log file "$logfile" produced by configure as this will help
493 solve the problem.
494 EOF
495     fi
496     exit 1
497 }
498
499 # Avoid locale weirdness, besides we really just want to translate ASCII.
500 toupper(){
501     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
502 }
503
504 tolower(){
505     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
506 }
507
508 c_escape(){
509     echo "$*" | sed 's/["\\]/\\\0/g'
510 }
511
512 sh_quote(){
513     v=$(echo "$1" | sed "s/'/'\\\\''/g")
514     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
515     echo "$v"
516 }
517
518 cleanws(){
519     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
520 }
521
522 filter(){
523     pat=$1
524     shift
525     for v; do
526         eval "case $v in $pat) printf '%s ' $v ;; esac"
527     done
528 }
529
530 filter_out(){
531     pat=$1
532     shift
533     for v; do
534         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
535     done
536 }
537
538 map(){
539     m=$1
540     shift
541     for v; do eval $m; done
542 }
543
544 add_suffix(){
545     suffix=$1
546     shift
547     for v; do echo ${v}${suffix}; done
548 }
549
550 set_all(){
551     value=$1
552     shift
553     for var in $*; do
554         eval $var=$value
555     done
556 }
557
558 set_weak(){
559     value=$1
560     shift
561     for var; do
562         eval : \${$var:=$value}
563     done
564 }
565
566 sanitize_var_name(){
567     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
568 }
569
570 set_safe(){
571     var=$1
572     shift
573     eval $(sanitize_var_name "$var")='$*'
574 }
575
576 get_safe(){
577     eval echo \$$(sanitize_var_name "$1")
578 }
579
580 pushvar(){
581     for pvar in $*; do
582         eval level=\${${pvar}_level:=0}
583         eval ${pvar}_${level}="\$$pvar"
584         eval ${pvar}_level=$(($level+1))
585     done
586 }
587
588 popvar(){
589     for pvar in $*; do
590         eval level=\${${pvar}_level:-0}
591         test $level = 0 && continue
592         eval level=$(($level-1))
593         eval $pvar="\${${pvar}_${level}}"
594         eval ${pvar}_level=$level
595         eval unset ${pvar}_${level}
596     done
597 }
598
599 request(){
600     for var in $*; do
601         eval ${var}_requested=yes
602         eval $var=
603     done
604 }
605
606 enable(){
607     set_all yes $*
608 }
609
610 disable(){
611     set_all no $*
612 }
613
614 enable_weak(){
615     set_weak yes $*
616 }
617
618 disable_weak(){
619     set_weak no $*
620 }
621
622 enable_safe(){
623     for var; do
624         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
625     done
626 }
627
628 disable_safe(){
629     for var; do
630         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
631     done
632 }
633
634 do_enable_deep(){
635     for var; do
636         enabled $var && continue
637         eval sel="\$${var}_select"
638         eval sgs="\$${var}_suggest"
639         pushvar var sgs
640         enable_deep $sel
641         popvar sgs
642         enable_deep_weak $sgs
643         popvar var
644     done
645 }
646
647 enable_deep(){
648     do_enable_deep $*
649     enable $*
650 }
651
652 enable_deep_weak(){
653     for var; do
654         disabled $var && continue
655         pushvar var
656         do_enable_deep $var
657         popvar var
658         enable_weak $var
659     done
660 }
661
662 requested(){
663     test "${1#!}" = "$1" && op='=' || op=!=
664     eval test "x\$${1#!}_requested" $op "xyes"
665 }
666
667 enabled(){
668     test "${1#!}" = "$1" && op='=' || op=!=
669     eval test "x\$${1#!}" $op "xyes"
670 }
671
672 disabled(){
673     test "${1#!}" = "$1" && op='=' || op=!=
674     eval test "x\$${1#!}" $op "xno"
675 }
676
677 enabled_all(){
678     for opt; do
679         enabled $opt || return 1
680     done
681 }
682
683 disabled_all(){
684     for opt; do
685         disabled $opt || return 1
686     done
687 }
688
689 enabled_any(){
690     for opt; do
691         enabled $opt && return 0
692     done
693 }
694
695 disabled_any(){
696     for opt; do
697         disabled $opt && return 0
698     done
699     return 1
700 }
701
702 set_default(){
703     for opt; do
704         eval : \${$opt:=\$${opt}_default}
705     done
706 }
707
708 is_in(){
709     value=$1
710     shift
711     for var in $*; do
712         [ $var = $value ] && return 0
713     done
714     return 1
715 }
716
717 do_check_deps(){
718     for cfg; do
719         cfg="${cfg#!}"
720         enabled ${cfg}_checking && die "Circular dependency for $cfg."
721         disabled ${cfg}_checking && continue
722         enable ${cfg}_checking
723         append allopts $cfg
724
725         eval dep_all="\$${cfg}_deps"
726         eval dep_any="\$${cfg}_deps_any"
727         eval dep_sel="\$${cfg}_select"
728         eval dep_sgs="\$${cfg}_suggest"
729         eval dep_ifa="\$${cfg}_if"
730         eval dep_ifn="\$${cfg}_if_any"
731
732         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
733         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
734         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
735
736         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
737         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
738         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
739         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
740         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
741
742         if enabled $cfg; then
743             enable_deep $dep_sel
744             enable_deep_weak $dep_sgs
745         fi
746
747         disable ${cfg}_checking
748     done
749 }
750
751 check_deps(){
752     unset allopts
753
754     do_check_deps "$@"
755
756     for cfg in $allopts; do
757         enabled $cfg || continue
758         eval dep_extralibs="\$${cfg}_extralibs"
759         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
760     done
761 }
762
763 print_config(){
764     pfx=$1
765     files=$2
766     shift 2
767     map 'eval echo "$v \${$v:-no}"' "$@" |
768     awk "BEGIN { split(\"$files\", files) }
769         {
770             c = \"$pfx\" toupper(\$1);
771             v = \$2;
772             sub(/yes/, 1, v);
773             sub(/no/,  0, v);
774             for (f in files) {
775                 file = files[f];
776                 if (file ~ /\\.h\$/) {
777                     printf(\"#define %s %d\\n\", c, v) >>file;
778                 } else if (file ~ /\\.asm\$/) {
779                     printf(\"%%define %s %d\\n\", c, v) >>file;
780                 } else if (file ~ /\\.mak\$/) {
781                     n = -v ? \"\" : \"!\";
782                     printf(\"%s%s=yes\\n\", n, c) >>file;
783                 } else if (file ~ /\\.texi\$/) {
784                     pre = -v ? \"\" : \"@c \";
785                     yesno = \$2;
786                     c2 = tolower(c);
787                     gsub(/_/, \"-\", c2);
788                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
789                 }
790             }
791         }"
792 }
793
794 print_enabled(){
795     suf=$1
796     shift
797     for v; do
798         enabled $v && printf "%s\n" ${v%$suf}
799     done
800 }
801
802 append(){
803     var=$1
804     shift
805     eval "$var=\"\$$var $*\""
806 }
807
808 prepend(){
809     var=$1
810     shift
811     eval "$var=\"$* \$$var\""
812 }
813
814 unique(){
815     var=$1
816     uniq_list=""
817     for tok in $(eval echo \$$var); do
818         uniq_list="$(filter_out $tok $uniq_list) $tok"
819     done
820     eval "$var=\"${uniq_list}\""
821 }
822
823 add_cppflags(){
824     append CPPFLAGS "$@"
825 }
826
827 add_cflags(){
828     append CFLAGS $($cflags_filter "$@")
829 }
830
831 add_cxxflags(){
832     append CXXFLAGS $($cflags_filter "$@")
833 }
834
835 add_asflags(){
836     append ASFLAGS $($asflags_filter "$@")
837 }
838
839 add_objcflags(){
840     append OBJCFLAGS $($objcflags_filter "$@")
841 }
842
843 add_ldflags(){
844     append LDFLAGS $($ldflags_filter "$@")
845 }
846
847 add_ldexeflags(){
848     append LDEXEFLAGS $($ldflags_filter "$@")
849 }
850
851 add_ldlibflags(){
852     append LDLIBFLAGS $($ldflags_filter "$@")
853 }
854
855 add_stripflags(){
856     append ASMSTRIPFLAGS "$@"
857 }
858
859 add_extralibs(){
860     prepend extralibs $($ldflags_filter "$@")
861 }
862
863 add_host_cppflags(){
864     append host_cppflags "$@"
865 }
866
867 add_host_cflags(){
868     append host_cflags $($host_cflags_filter "$@")
869 }
870
871 add_host_ldflags(){
872     append host_ldflags $($host_ldflags_filter "$@")
873 }
874
875 add_compat(){
876     append compat_objs $1
877     shift
878     map 'add_cppflags -D$v' "$@"
879 }
880
881 check_cmd(){
882     log "$@"
883     "$@" >> $logfile 2>&1
884 }
885
886 check_stat(){
887     log check_stat "$@"
888     stat "$1" >> $logfile 2>&1
889 }
890
891 cc_o(){
892     eval printf '%s\\n' $CC_O
893 }
894
895 cc_e(){
896     eval printf '%s\\n' $CC_E
897 }
898
899 check_cc(){
900     log check_cc "$@"
901     cat > $TMPC
902     log_file $TMPC
903     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
904 }
905
906 check_cxx(){
907     log check_cxx "$@"
908     cat > $TMPCPP
909     log_file $TMPCPP
910     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
911 }
912
913 check_objcc(){
914     log check_objcc "$@"
915     cat > $TMPM
916     log_file $TMPM
917     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
918 }
919
920 check_cpp(){
921     log check_cpp "$@"
922     cat > $TMPC
923     log_file $TMPC
924     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
925 }
926
927 as_o(){
928     eval printf '%s\\n' $AS_O
929 }
930
931 check_as(){
932     log check_as "$@"
933     cat > $TMPS
934     log_file $TMPS
935     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
936 }
937
938 check_inline_asm(){
939     log check_inline_asm "$@"
940     name="$1"
941     code="$2"
942     shift 2
943     disable $name
944     check_cc "$@" <<EOF && enable $name
945 void foo(void){ __asm__ volatile($code); }
946 EOF
947 }
948
949 check_inline_asm_flags(){
950     log check_inline_asm_flags "$@"
951     name="$1"
952     code="$2"
953     flags=''
954     shift 2
955     while [ "$1" != "" ]; do
956       append flags $1
957       shift
958     done;
959     disable $name
960     cat > $TMPC <<EOF
961 void foo(void){ __asm__ volatile($code); }
962 EOF
963     log_file $TMPC
964     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
965     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
966 }
967
968 check_insn(){
969     log check_insn "$@"
970     check_inline_asm ${1}_inline "\"$2\""
971     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
972 }
973
974 check_yasm(){
975     log check_yasm "$@"
976     echo "$1" > $TMPS
977     log_file $TMPS
978     shift 1
979     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
980 }
981
982 ld_o(){
983     eval printf '%s\\n' $LD_O
984 }
985
986 check_ld(){
987     log check_ld "$@"
988     type=$1
989     shift 1
990     flags=$(filter_out '-l*|*.so' $@)
991     libs=$(filter '-l*|*.so' $@)
992     check_$type $($cflags_filter $flags) || return
993     flags=$($ldflags_filter $flags)
994     libs=$($ldflags_filter $libs)
995     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
996 }
997
998 print_include(){
999     hdr=$1
1000     test "${hdr%.h}" = "${hdr}" &&
1001         echo "#include $hdr"    ||
1002         echo "#include <$hdr>"
1003 }
1004
1005 check_code(){
1006     log check_code "$@"
1007     check=$1
1008     headers=$2
1009     code=$3
1010     shift 3
1011     {
1012         for hdr in $headers; do
1013             print_include $hdr
1014         done
1015         echo "int main(void) { $code; return 0; }"
1016     } | check_$check "$@"
1017 }
1018
1019 check_cppflags(){
1020     log check_cppflags "$@"
1021     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1022 int x;
1023 EOF
1024 }
1025
1026 test_cflags(){
1027     log test_cflags "$@"
1028     set -- $($cflags_filter "$@")
1029     check_cc "$@" <<EOF
1030 int x;
1031 EOF
1032 }
1033
1034 check_cflags(){
1035     log check_cflags "$@"
1036     test_cflags "$@" && add_cflags "$@"
1037 }
1038
1039 check_cxxflags(){
1040     log check_cxxflags "$@"
1041     set -- $($cflags_filter "$@")
1042     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 test_objcflags(){
1048     log test_objcflags "$@"
1049     set -- $($objcflags_filter "$@")
1050     check_objcc "$@" <<EOF
1051 int x;
1052 EOF
1053 }
1054
1055 check_objcflags(){
1056     log check_objcflags "$@"
1057     test_objcflags "$@" && add_objcflags "$@"
1058 }
1059
1060 test_ldflags(){
1061     log test_ldflags "$@"
1062     check_ld "cc" "$@" <<EOF
1063 int main(void){ return 0; }
1064 EOF
1065 }
1066
1067 check_ldflags(){
1068     log check_ldflags "$@"
1069     test_ldflags "$@" && add_ldflags "$@"
1070 }
1071
1072 test_stripflags(){
1073     log test_stripflags "$@"
1074     # call check_cc to get a fresh TMPO
1075     check_cc <<EOF
1076 int main(void) { return 0; }
1077 EOF
1078     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1079 }
1080
1081 check_stripflags(){
1082     log check_stripflags "$@"
1083     test_stripflags "$@" && add_stripflags "$@"
1084 }
1085
1086 check_header(){
1087     log check_header "$@"
1088     header=$1
1089     shift
1090     disable_safe $header
1091     check_cpp "$@" <<EOF && enable_safe $header
1092 #include <$header>
1093 int x;
1094 EOF
1095 }
1096
1097 check_header_objcc(){
1098     log check_header_objcc "$@"
1099     rm -f -- "$TMPO"
1100     header=$1
1101     shift
1102     disable_safe $header
1103     {
1104        echo "#include <$header>"
1105        echo "int main(void) { return 0; }"
1106     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1107 }
1108
1109 check_func(){
1110     log check_func "$@"
1111     func=$1
1112     shift
1113     disable $func
1114     check_ld "cc" "$@" <<EOF && enable $func
1115 extern int $func();
1116 int main(void){ $func(); }
1117 EOF
1118 }
1119
1120 check_complexfunc(){
1121     log check_complexfunc "$@"
1122     func=$1
1123     narg=$2
1124     shift 2
1125     test $narg = 2 && args="f, g" || args="f * I"
1126     disable $func
1127     check_ld "cc" "$@" <<EOF && enable $func
1128 #include <complex.h>
1129 #include <math.h>
1130 float foo(complex float f, complex float g) { return $func($args); }
1131 int main(void){ return (int) foo; }
1132 EOF
1133 }
1134
1135 check_mathfunc(){
1136     log check_mathfunc "$@"
1137     func=$1
1138     narg=$2
1139     shift 2
1140     test $narg = 2 && args="f, g" || args="f"
1141     disable $func
1142     check_ld "cc" "$@" <<EOF && enable $func
1143 #include <math.h>
1144 float foo(float f, float g) { return $func($args); }
1145 int main(void){ return (int) foo; }
1146 EOF
1147 }
1148
1149 check_func_headers(){
1150     log check_func_headers "$@"
1151     headers=$1
1152     funcs=$2
1153     shift 2
1154     {
1155         for hdr in $headers; do
1156             print_include $hdr
1157         done
1158         echo "#include <stdint.h>"
1159         for func in $funcs; do
1160             echo "long check_$func(void) { return (long) $func; }"
1161         done
1162         echo "int main(void) { int ret = 0;"
1163         # LTO could optimize out the test functions without this
1164         for func in $funcs; do
1165             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1166         done
1167         echo "return ret; }"
1168     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1169 }
1170
1171 check_class_headers_cpp(){
1172     log check_class_headers_cpp "$@"
1173     headers=$1
1174     classes=$2
1175     shift 2
1176     {
1177         for hdr in $headers; do
1178             echo "#include <$hdr>"
1179         done
1180         echo "int main(void) { "
1181         i=1
1182         for class in $classes; do
1183             echo "$class obj$i;"
1184             i=$(expr $i + 1)
1185         done
1186         echo "return 0; }"
1187     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1188 }
1189
1190 check_cpp_condition(){
1191     log check_cpp_condition "$@"
1192     header=$1
1193     condition=$2
1194     shift 2
1195     check_cpp "$@" <<EOF
1196 #include <$header>
1197 #if !($condition)
1198 #error "unsatisfied condition: $condition"
1199 #endif
1200 EOF
1201 }
1202
1203 test_cflags_cc(){
1204     log test_cflags_cc "$@"
1205     flags=$1
1206     header=$2
1207     condition=$3
1208     shift 3
1209     set -- $($cflags_filter "$flags")
1210     check_cc "$@" <<EOF
1211 #include <$header>
1212 #if !($condition)
1213 #error "unsatisfied condition: $condition"
1214 #endif
1215 EOF
1216 }
1217
1218 check_lib(){
1219     log check_lib "$@"
1220     headers="$1"
1221     funcs="$2"
1222     shift 2
1223     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1224 }
1225
1226 check_lib_cpp(){
1227     log check_lib_cpp "$@"
1228     headers="$1"
1229     classes="$2"
1230     shift 2
1231     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1232 }
1233
1234 check_pkg_config(){
1235     log check_pkg_config "$@"
1236     pkg_version="$1"
1237     pkg="${1%% *}"
1238     headers="$2"
1239     funcs="$3"
1240     shift 3
1241     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1242     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1243     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1244     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1245         set_safe "${pkg}_cflags" $pkg_cflags   &&
1246         set_safe "${pkg}_libs"   $pkg_libs
1247 }
1248
1249 check_exec(){
1250     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1251 }
1252
1253 check_exec_crash(){
1254     log check_exec_crash "$@"
1255     code=$(cat)
1256
1257     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1258     # are safe but may not be available everywhere.  Thus we use
1259     # raise(SIGTERM) instead.  The check is run in a subshell so we
1260     # can redirect the "Terminated" message from the shell.  SIGBUS
1261     # is not defined by standard C so it is used conditionally.
1262
1263     (check_exec "$@") >> $logfile 2>&1 <<EOF
1264 #include <signal.h>
1265 static void sighandler(int sig){
1266     raise(SIGTERM);
1267 }
1268 int foo(void){
1269     $code
1270 }
1271 int (*func_ptr)(void) = foo;
1272 int main(void){
1273     signal(SIGILL, sighandler);
1274     signal(SIGFPE, sighandler);
1275     signal(SIGSEGV, sighandler);
1276 #ifdef SIGBUS
1277     signal(SIGBUS, sighandler);
1278 #endif
1279     return func_ptr();
1280 }
1281 EOF
1282 }
1283
1284 check_type(){
1285     log check_type "$@"
1286     headers=$1
1287     type=$2
1288     shift 2
1289     disable_safe "$type"
1290     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1291 }
1292
1293 check_struct(){
1294     log check_struct "$@"
1295     headers=$1
1296     struct=$2
1297     member=$3
1298     shift 3
1299     disable_safe "${struct}_${member}"
1300     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1301         enable_safe "${struct}_${member}"
1302 }
1303
1304 check_builtin(){
1305     log check_builtin "$@"
1306     name=$1
1307     headers=$2
1308     builtin=$3
1309     shift 3
1310     disable "$name"
1311     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1312 }
1313
1314 check_compile_assert(){
1315     log check_compile_assert "$@"
1316     name=$1
1317     headers=$2
1318     condition=$3
1319     shift 3
1320     disable "$name"
1321     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1322 }
1323
1324 require(){
1325     log require "$@"
1326     name_version="$1"
1327     headers="$2"
1328     func="$3"
1329     shift 3
1330     check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1331 }
1332
1333 require_cpp(){
1334     name="$1"
1335     headers="$2"
1336     classes="$3"
1337     shift 3
1338     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1339 }
1340
1341 use_pkg_config(){
1342     log use_pkg_config "$@"
1343     pkg="$1"
1344     check_pkg_config "$@" || return 1
1345     add_cflags    $(get_safe "${pkg}_cflags")
1346     add_extralibs $(get_safe "${pkg}_libs")
1347 }
1348
1349 require_pkg_config(){
1350     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1351 }
1352
1353 require_libfreetype(){
1354     log require_libfreetype "$@"
1355     pkg="freetype2"
1356     check_cmd $pkg_config --exists --print-errors $pkg \
1357       || die "ERROR: $pkg not found"
1358     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1359     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1360     {
1361         echo "#include <ft2build.h>"
1362         echo "#include FT_FREETYPE_H"
1363         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1364         echo "int main(void) { return 0; }"
1365     } | check_ld "cc" $pkg_cflags $pkg_libs \
1366       && set_safe "${pkg}_cflags" $pkg_cflags \
1367       && set_safe "${pkg}_libs"   $pkg_libs \
1368       || die "ERROR: $pkg not found"
1369     add_cflags    $(get_safe "${pkg}_cflags")
1370     add_extralibs $(get_safe "${pkg}_libs")
1371 }
1372
1373 hostcc_e(){
1374     eval printf '%s\\n' $HOSTCC_E
1375 }
1376
1377 hostcc_o(){
1378     eval printf '%s\\n' $HOSTCC_O
1379 }
1380
1381 check_host_cc(){
1382     log check_host_cc "$@"
1383     cat > $TMPC
1384     log_file $TMPC
1385     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1386 }
1387
1388 check_host_cpp(){
1389     log check_host_cpp "$@"
1390     cat > $TMPC
1391     log_file $TMPC
1392     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1393 }
1394
1395 check_host_cppflags(){
1396     log check_host_cppflags "$@"
1397     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1398 int x;
1399 EOF
1400 }
1401
1402 check_host_cflags(){
1403     log check_host_cflags "$@"
1404     set -- $($host_cflags_filter "$@")
1405     check_host_cc "$@" <<EOF && append host_cflags "$@"
1406 int x;
1407 EOF
1408 }
1409
1410 check_host_cpp_condition(){
1411     log check_host_cpp_condition "$@"
1412     header=$1
1413     condition=$2
1414     shift 2
1415     check_host_cpp "$@" <<EOF
1416 #include <$header>
1417 #if !($condition)
1418 #error "unsatisfied condition: $condition"
1419 #endif
1420 EOF
1421 }
1422
1423 cp_if_changed(){
1424     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1425     mkdir -p "$(dirname $2)"
1426     cp -f "$1" "$2"
1427 }
1428
1429 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1430 # system-dependent things.
1431
1432 AVCODEC_COMPONENTS="
1433     bsfs
1434     decoders
1435     encoders
1436     hwaccels
1437     parsers
1438 "
1439
1440 AVDEVICE_COMPONENTS="
1441     indevs
1442     outdevs
1443 "
1444 AVFILTER_COMPONENTS="
1445     filters
1446 "
1447 AVFORMAT_COMPONENTS="
1448     demuxers
1449     muxers
1450     protocols
1451 "
1452
1453 AVRESAMPLE_COMPONENTS=""
1454 AVUTIL_COMPONENTS=""
1455
1456 COMPONENT_LIST="
1457     $AVCODEC_COMPONENTS
1458     $AVDEVICE_COMPONENTS
1459     $AVFILTER_COMPONENTS
1460     $AVFORMAT_COMPONENTS
1461     $AVRESAMPLE_COMPONENTS
1462     $AVUTIL_COMPONENTS
1463 "
1464
1465 EXAMPLE_LIST="
1466     avio_dir_cmd_example
1467     avio_reading_example
1468     decode_audio_example
1469     decode_video_example
1470     demuxing_decoding_example
1471     encode_audio_example
1472     encode_video_example
1473     extract_mvs_example
1474     filter_audio_example
1475     filtering_audio_example
1476     filtering_video_example
1477     http_multiclient_example
1478     metadata_example
1479     muxing_example
1480     qsvdec_example
1481     remuxing_example
1482     resampling_audio_example
1483     scaling_video_example
1484     transcode_aac_example
1485     transcoding_example
1486 "
1487 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1488     bzlib
1489     iconv
1490     libxcb
1491     libxcb_shm
1492     libxcb_shape
1493     libxcb_xfixes
1494     lzma
1495     schannel
1496     sdl
1497     sdl2
1498     securetransport
1499     xlib
1500     zlib
1501 "
1502
1503 EXTERNAL_LIBRARY_GPL_LIST="
1504     avisynth
1505     frei0r
1506     libcdio
1507     librubberband
1508     libvidstab
1509     libx264
1510     libx265
1511     libxavs
1512     libxvid
1513 "
1514
1515 EXTERNAL_LIBRARY_NONFREE_LIST="
1516     libfdk_aac
1517     openssl
1518 "
1519
1520 EXTERNAL_LIBRARY_VERSION3_LIST="
1521     gmp
1522     libopencore_amrnb
1523     libopencore_amrwb
1524     libvo_amrwbenc
1525 "
1526
1527 EXTERNAL_LIBRARY_GPLV3_LIST="
1528     libsmbclient
1529 "
1530
1531 EXTERNAL_LIBRARY_LIST="
1532     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1533     $EXTERNAL_LIBRARY_GPL_LIST
1534     $EXTERNAL_LIBRARY_NONFREE_LIST
1535     $EXTERNAL_LIBRARY_VERSION3_LIST
1536     $EXTERNAL_LIBRARY_GPLV3_LIST
1537     chromaprint
1538     crystalhd
1539     decklink
1540     gcrypt
1541     gnutls
1542     jni
1543     ladspa
1544     libass
1545     libbluray
1546     libbs2b
1547     libcaca
1548     libcelt
1549     libdc1394
1550     libflite
1551     libfontconfig
1552     libfreetype
1553     libfribidi
1554     libgme
1555     libgsm
1556     libiec61883
1557     libilbc
1558     libkvazaar
1559     libmodplug
1560     libmp3lame
1561     libnut
1562     libopencv
1563     libopenh264
1564     libopenjpeg
1565     libopenmpt
1566     libopus
1567     libpulse
1568     librtmp
1569     libschroedinger
1570     libshine
1571     libsmbclient
1572     libsnappy
1573     libsoxr
1574     libspeex
1575     libssh
1576     libtesseract
1577     libtheora
1578     libtwolame
1579     libv4l2
1580     libvorbis
1581     libvpx
1582     libwavpack
1583     libwebp
1584     libzimg
1585     libzmq
1586     libzvbi
1587     mediacodec
1588     netcdf
1589     openal
1590     opencl
1591     opengl
1592     videotoolbox
1593 "
1594 HWACCEL_AUTODETECT_LIBRARY_LIST="
1595     audiotoolbox
1596     cuda
1597     cuvid
1598     d3d11va
1599     dxva2
1600     nvenc
1601     vaapi
1602     vda
1603     vdpau
1604     videotoolbox_hwaccel
1605     xvmc
1606 "
1607
1608 HWACCEL_LIBRARY_NONFREE_LIST="
1609     libnpp
1610 "
1611
1612 HWACCEL_LIBRARY_LIST="
1613     $HWACCEL_AUTODETECT_LIBRARY_LIST
1614     $HWACCEL_LIBRARY_NONFREE_LIST
1615     libmfx
1616     mmal
1617     omx
1618 "
1619
1620 DOCUMENT_LIST="
1621     doc
1622     htmlpages
1623     manpages
1624     podpages
1625     txtpages
1626 "
1627
1628 FEATURE_LIST="
1629     ftrapv
1630     gray
1631     hardcoded_tables
1632     omx_rpi
1633     runtime_cpudetect
1634     safe_bitstream_reader
1635     shared
1636     small
1637     static
1638     swscale_alpha
1639 "
1640
1641 LIBRARY_LIST="
1642     avcodec
1643     avdevice
1644     avfilter
1645     avformat
1646     avresample
1647     avutil
1648     postproc
1649     swresample
1650     swscale
1651 "
1652
1653 LICENSE_LIST="
1654     gpl
1655     nonfree
1656     version3
1657 "
1658
1659 PROGRAM_LIST="
1660     ffplay
1661     ffprobe
1662     ffserver
1663     ffmpeg
1664 "
1665
1666 SUBSYSTEM_LIST="
1667     dct
1668     dwt
1669     error_resilience
1670     faan
1671     fast_unaligned
1672     fft
1673     lsp
1674     lzo
1675     mdct
1676     pixelutils
1677     network
1678     rdft
1679 "
1680
1681 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1682 CONFIG_LIST="
1683     $DOCUMENT_LIST
1684     $EXAMPLE_LIST
1685     $EXTERNAL_LIBRARY_LIST
1686     $HWACCEL_LIBRARY_LIST
1687     $FEATURE_LIST
1688     $LICENSE_LIST
1689     $LIBRARY_LIST
1690     $PROGRAM_LIST
1691     $SUBSYSTEM_LIST
1692     fontconfig
1693     memory_poisoning
1694     neon_clobber_test
1695     pic
1696     raise_major
1697     thumb
1698     valgrind_backtrace
1699     xmm_clobber_test
1700     $COMPONENT_LIST
1701 "
1702
1703 THREADS_LIST="
1704     pthreads
1705     os2threads
1706     w32threads
1707 "
1708
1709 ATOMICS_LIST="
1710     atomics_gcc
1711     atomics_suncc
1712     atomics_win32
1713 "
1714
1715 AUTODETECT_LIBS="
1716     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1717     $HWACCEL_AUTODETECT_LIBRARY_LIST
1718     $THREADS_LIST
1719 "
1720
1721 ARCH_LIST="
1722     aarch64
1723     alpha
1724     arm
1725     avr32
1726     avr32_ap
1727     avr32_uc
1728     bfin
1729     ia64
1730     m68k
1731     mips
1732     mips64
1733     parisc
1734     ppc
1735     ppc64
1736     s390
1737     sh4
1738     sparc
1739     sparc64
1740     tilegx
1741     tilepro
1742     tomi
1743     x86
1744     x86_32
1745     x86_64
1746 "
1747
1748 ARCH_EXT_LIST_ARM="
1749     armv5te
1750     armv6
1751     armv6t2
1752     armv8
1753     neon
1754     vfp
1755     vfpv3
1756     setend
1757 "
1758
1759 ARCH_EXT_LIST_MIPS="
1760     mipsfpu
1761     mips32r2
1762     mips32r5
1763     mips64r2
1764     mips32r6
1765     mips64r6
1766     mipsdsp
1767     mipsdspr2
1768     msa
1769 "
1770
1771 ARCH_EXT_LIST_LOONGSON="
1772     loongson2
1773     loongson3
1774     mmi
1775 "
1776
1777 ARCH_EXT_LIST_X86_SIMD="
1778     aesni
1779     amd3dnow
1780     amd3dnowext
1781     avx
1782     avx2
1783     fma3
1784     fma4
1785     mmx
1786     mmxext
1787     sse
1788     sse2
1789     sse3
1790     sse4
1791     sse42
1792     ssse3
1793     xop
1794 "
1795
1796 ARCH_EXT_LIST_PPC="
1797     altivec
1798     dcbzl
1799     ldbrx
1800     power8
1801     ppc4xx
1802     vsx
1803 "
1804
1805 ARCH_EXT_LIST_X86="
1806     $ARCH_EXT_LIST_X86_SIMD
1807     cpunop
1808     i686
1809 "
1810
1811 ARCH_EXT_LIST="
1812     $ARCH_EXT_LIST_ARM
1813     $ARCH_EXT_LIST_PPC
1814     $ARCH_EXT_LIST_X86
1815     $ARCH_EXT_LIST_MIPS
1816     $ARCH_EXT_LIST_LOONGSON
1817 "
1818
1819 ARCH_FEATURES="
1820     aligned_stack
1821     fast_64bit
1822     fast_clz
1823     fast_cmov
1824     local_aligned_8
1825     local_aligned_16
1826     local_aligned_32
1827     simd_align_16
1828     simd_align_32
1829 "
1830
1831 BUILTIN_LIST="
1832     atomic_cas_ptr
1833     machine_rw_barrier
1834     MemoryBarrier
1835     mm_empty
1836     rdtsc
1837     sarestart
1838     sem_timedwait
1839     sync_val_compare_and_swap
1840 "
1841 HAVE_LIST_CMDLINE="
1842     inline_asm
1843     symver
1844     yasm
1845 "
1846
1847 HAVE_LIST_PUB="
1848     bigendian
1849     fast_unaligned
1850 "
1851
1852 HEADERS_LIST="
1853     alsa_asoundlib_h
1854     altivec_h
1855     arpa_inet_h
1856     asm_types_h
1857     cdio_paranoia_h
1858     cdio_paranoia_paranoia_h
1859     cuda_h
1860     dispatch_dispatch_h
1861     dev_bktr_ioctl_bt848_h
1862     dev_bktr_ioctl_meteor_h
1863     dev_ic_bt8xx_h
1864     dev_video_bktr_ioctl_bt848_h
1865     dev_video_meteor_ioctl_meteor_h
1866     direct_h
1867     dirent_h
1868     dlfcn_h
1869     d3d11_h
1870     dxva_h
1871     ES2_gl_h
1872     gsm_h
1873     io_h
1874     mach_mach_time_h
1875     machine_ioctl_bt848_h
1876     machine_ioctl_meteor_h
1877     malloc_h
1878     opencv2_core_core_c_h
1879     openjpeg_2_1_openjpeg_h
1880     openjpeg_2_0_openjpeg_h
1881     openjpeg_1_5_openjpeg_h
1882     OpenGL_gl3_h
1883     poll_h
1884     sndio_h
1885     soundcard_h
1886     stdatomic_h
1887     sys_mman_h
1888     sys_param_h
1889     sys_resource_h
1890     sys_select_h
1891     sys_soundcard_h
1892     sys_time_h
1893     sys_un_h
1894     sys_videoio_h
1895     termios_h
1896     udplite_h
1897     unistd_h
1898     valgrind_valgrind_h
1899     windows_h
1900     winsock2_h
1901 "
1902
1903 INTRINSICS_LIST="
1904     intrinsics_neon
1905 "
1906
1907 COMPLEX_FUNCS="
1908     cabs
1909     cexp
1910 "
1911
1912 MATH_FUNCS="
1913     atanf
1914     atan2f
1915     cbrt
1916     cbrtf
1917     copysign
1918     cosf
1919     erf
1920     exp2
1921     exp2f
1922     expf
1923     hypot
1924     isfinite
1925     isinf
1926     isnan
1927     ldexpf
1928     llrint
1929     llrintf
1930     log2
1931     log2f
1932     log10f
1933     lrint
1934     lrintf
1935     powf
1936     rint
1937     round
1938     roundf
1939     sinf
1940     trunc
1941     truncf
1942 "
1943
1944 SYSTEM_FUNCS="
1945     access
1946     aligned_malloc
1947     arc4random
1948     clock_gettime
1949     closesocket
1950     CommandLineToArgvW
1951     CoTaskMemFree
1952     CryptGenRandom
1953     dlopen
1954     fcntl
1955     flt_lim
1956     fork
1957     getaddrinfo
1958     gethrtime
1959     getopt
1960     GetProcessAffinityMask
1961     GetProcessMemoryInfo
1962     GetProcessTimes
1963     getrusage
1964     GetSystemTimeAsFileTime
1965     gettimeofday
1966     glob
1967     glXGetProcAddress
1968     gmtime_r
1969     inet_aton
1970     isatty
1971     jack_port_get_latency_range
1972     kbhit
1973     LoadLibrary
1974     localtime_r
1975     lstat
1976     lzo1x_999_compress
1977     mach_absolute_time
1978     MapViewOfFile
1979     memalign
1980     mkstemp
1981     mmap
1982     mprotect
1983     nanosleep
1984     PeekNamedPipe
1985     posix_memalign
1986     pthread_cancel
1987     sched_getaffinity
1988     SetConsoleTextAttribute
1989     SetConsoleCtrlHandler
1990     setmode
1991     setrlimit
1992     Sleep
1993     strerror_r
1994     sysconf
1995     sysctl
1996     usleep
1997     UTGetOSTypeFromString
1998     VirtualAlloc
1999     wglGetProcAddress
2000 "
2001
2002 TOOLCHAIN_FEATURES="
2003     as_dn_directive
2004     as_fpu_directive
2005     as_func
2006     as_object_arch
2007     asm_mod_q
2008     attribute_may_alias
2009     attribute_packed
2010     ebp_available
2011     ebx_available
2012     gnu_as
2013     gnu_windres
2014     ibm_asm
2015     inline_asm_direct_symbol_refs
2016     inline_asm_labels
2017     inline_asm_nonlocal_labels
2018     pragma_deprecated
2019     rsync_contimeout
2020     symver_asm_label
2021     symver_gnu_asm
2022     vfp_args
2023     xform_asm
2024     xmm_clobbers
2025 "
2026
2027 TYPES_LIST="
2028     CONDITION_VARIABLE_Ptr
2029     socklen_t
2030     struct_addrinfo
2031     struct_group_source_req
2032     struct_ip_mreq_source
2033     struct_ipv6_mreq
2034     struct_msghdr_msg_flags
2035     struct_pollfd
2036     struct_rusage_ru_maxrss
2037     struct_sctp_event_subscribe
2038     struct_sockaddr_in6
2039     struct_sockaddr_sa_len
2040     struct_sockaddr_storage
2041     struct_stat_st_mtim_tv_nsec
2042     struct_v4l2_frmivalenum_discrete
2043 "
2044
2045 HAVE_LIST="
2046     $ARCH_EXT_LIST
2047     $(add_suffix _external $ARCH_EXT_LIST)
2048     $(add_suffix _inline   $ARCH_EXT_LIST)
2049     $ARCH_FEATURES
2050     $ATOMICS_LIST
2051     $BUILTIN_LIST
2052     $COMPLEX_FUNCS
2053     $HAVE_LIST_CMDLINE
2054     $HAVE_LIST_PUB
2055     $HEADERS_LIST
2056     $INTRINSICS_LIST
2057     $MATH_FUNCS
2058     $SYSTEM_FUNCS
2059     $THREADS_LIST
2060     $TOOLCHAIN_FEATURES
2061     $TYPES_LIST
2062     atomics_native
2063     dos_paths
2064     dxva2_lib
2065     dxva2api_cobj
2066     libc_msvcrt
2067     makeinfo
2068     makeinfo_html
2069     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2070     perl
2071     pod2man
2072     sdl2
2073     section_data_rel_ro
2074     texi2html
2075     threads
2076     vaapi_drm
2077     vaapi_x11
2078     vdpau_x11
2079     winrt
2080 "
2081
2082 # options emitted with CONFIG_ prefix but not available on the command line
2083 CONFIG_EXTRA="
2084     aandcttables
2085     ac3dsp
2086     audio_frame_queue
2087     audiodsp
2088     blockdsp
2089     bswapdsp
2090     cabac
2091     dirac_parse
2092     dvprofile
2093     exif
2094     faandct
2095     faanidct
2096     fdctdsp
2097     flacdsp
2098     fmtconvert
2099     frame_thread_encoder
2100     g722dsp
2101     golomb
2102     gplv3
2103     h263dsp
2104     h264chroma
2105     h264dsp
2106     h264parse
2107     h264pred
2108     h264qpel
2109     hevcparse
2110     hpeldsp
2111     huffman
2112     huffyuvdsp
2113     huffyuvencdsp
2114     idctdsp
2115     iirfilter
2116     mdct15
2117     intrax8
2118     iso_media
2119     ividsp
2120     jpegtables
2121     lgplv3
2122     libx262
2123     llauddsp
2124     llviddsp
2125     llvidencdsp
2126     lpc
2127     lzf
2128     me_cmp
2129     mpeg_er
2130     mpegaudio
2131     mpegaudiodsp
2132     mpegaudioheader
2133     mpegvideo
2134     mpegvideoenc
2135     mss34dsp
2136     pixblockdsp
2137     qpeldsp
2138     qsv
2139     qsvdec
2140     qsvenc
2141     rangecoder
2142     riffdec
2143     riffenc
2144     rtpdec
2145     rtpenc_chain
2146     rv34dsp
2147     sinewin
2148     snappy
2149     srtp
2150     startcode
2151     texturedsp
2152     texturedspenc
2153     tpeldsp
2154     vaapi_encode
2155     vc1dsp
2156     videodsp
2157     vp3dsp
2158     vp56dsp
2159     vp8dsp
2160     vt_bt2020
2161     wma_freqs
2162     wmv2dsp
2163 "
2164
2165 CMDLINE_SELECT="
2166     $ARCH_EXT_LIST
2167     $CONFIG_LIST
2168     $HAVE_LIST_CMDLINE
2169     $THREADS_LIST
2170     asm
2171     cross_compile
2172     debug
2173     extra_warnings
2174     logging
2175     lto
2176     optimizations
2177     rpath
2178     stripping
2179 "
2180
2181 PATHS_LIST="
2182     bindir
2183     datadir
2184     docdir
2185     incdir
2186     libdir
2187     mandir
2188     pkgconfigdir
2189     prefix
2190     shlibdir
2191     install_name_dir
2192 "
2193
2194 CMDLINE_SET="
2195     $PATHS_LIST
2196     ar
2197     arch
2198     as
2199     assert_level
2200     build_suffix
2201     cc
2202     objcc
2203     cpu
2204     cross_prefix
2205     custom_allocator
2206     cxx
2207     dep_cc
2208     doxygen
2209     env
2210     extra_version
2211     gas
2212     host_cc
2213     host_cflags
2214     host_ld
2215     host_ldflags
2216     host_libs
2217     host_os
2218     install
2219     ld
2220     ln_s
2221     logfile
2222     malloc_prefix
2223     nm
2224     optflags
2225     pkg_config
2226     pkg_config_flags
2227     progs_suffix
2228     random_seed
2229     ranlib
2230     samples
2231     strip
2232     sws_max_filter_size
2233     sysinclude
2234     sysroot
2235     target_exec
2236     target_os
2237     target_path
2238     target_samples
2239     tempprefix
2240     toolchain
2241     valgrind
2242     yasmexe
2243 "
2244
2245 CMDLINE_APPEND="
2246     extra_cflags
2247     extra_cxxflags
2248     extra_objcflags
2249     host_cppflags
2250 "
2251
2252 # code dependency declarations
2253
2254 # architecture extensions
2255
2256 armv5te_deps="arm"
2257 armv6_deps="arm"
2258 armv6t2_deps="arm"
2259 armv8_deps="aarch64"
2260 neon_deps_any="aarch64 arm"
2261 intrinsics_neon_deps="neon"
2262 vfp_deps_any="aarch64 arm"
2263 vfpv3_deps="vfp"
2264 setend_deps="arm"
2265
2266 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2267
2268 loongson2_deps="mips"
2269 loongson3_deps="mips"
2270 mipsfpu_deps="mips"
2271 mipsdsp_deps="mips"
2272 mipsdspr2_deps="mips"
2273 mips32r2_deps="mips"
2274 mips32r5_deps="mips"
2275 mips32r6_deps="mips"
2276 mips64r2_deps="mips"
2277 mips64r6_deps="mips"
2278 msa_deps="mipsfpu"
2279 mmi_deps="mips"
2280
2281 altivec_deps="ppc"
2282 dcbzl_deps="ppc"
2283 ldbrx_deps="ppc"
2284 ppc4xx_deps="ppc"
2285 vsx_deps="altivec"
2286 power8_deps="vsx"
2287
2288 cpunop_deps="i686"
2289 x86_64_select="i686"
2290 x86_64_suggest="fast_cmov"
2291
2292 amd3dnow_deps="mmx"
2293 amd3dnowext_deps="amd3dnow"
2294 i686_deps="x86"
2295 mmx_deps="x86"
2296 mmxext_deps="mmx"
2297 sse_deps="mmxext"
2298 sse2_deps="sse"
2299 sse3_deps="sse2"
2300 ssse3_deps="sse3"
2301 sse4_deps="ssse3"
2302 sse42_deps="sse4"
2303 aesni_deps="sse42"
2304 avx_deps="sse42"
2305 xop_deps="avx"
2306 fma3_deps="avx"
2307 fma4_deps="avx"
2308 avx2_deps="avx"
2309
2310 mmx_external_deps="yasm"
2311 mmx_inline_deps="inline_asm"
2312 mmx_suggest="mmx_external mmx_inline"
2313
2314 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2315     eval dep=\$${ext}_deps
2316     eval ${ext}_external_deps='"${dep}_external"'
2317     eval ${ext}_inline_deps='"${dep}_inline"'
2318     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2319 done
2320
2321 aligned_stack_if_any="aarch64 ppc x86"
2322 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2323 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2324 fast_unaligned_if_any="aarch64 ppc x86"
2325 simd_align_16_if_any="altivec neon sse"
2326 simd_align_32_if_any="avx"
2327
2328 # system capabilities
2329 symver_if_any="symver_asm_label symver_gnu_asm"
2330 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2331
2332 # threading support
2333 atomics_gcc_if="sync_val_compare_and_swap"
2334 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2335 atomics_win32_if="MemoryBarrier"
2336 atomics_native_if_any="$ATOMICS_LIST"
2337 w32threads_deps="atomics_native"
2338 threads_if_any="$THREADS_LIST"
2339
2340 # subsystems
2341 dct_select="rdft"
2342 dirac_parse_select="golomb"
2343 error_resilience_select="me_cmp"
2344 faandct_deps="faan fdctdsp"
2345 faanidct_deps="faan idctdsp"
2346 h264dsp_select="startcode"
2347 frame_thread_encoder_deps="encoders threads"
2348 intrax8_select="blockdsp idctdsp"
2349 mdct_select="fft"
2350 mdct15_select="fft"
2351 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2352 mpeg_er_select="error_resilience"
2353 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2354 mpegaudiodsp_select="dct"
2355 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2356 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2357 vc1dsp_select="h264chroma qpeldsp startcode"
2358 rdft_select="fft"
2359
2360 # decoders / encoders
2361 aac_decoder_select="mdct15 mdct sinewin"
2362 aac_fixed_decoder_select="mdct sinewin"
2363 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2364 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2365 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2366 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2367 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2368 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2369 adpcm_g722_decoder_select="g722dsp"
2370 adpcm_g722_encoder_select="g722dsp"
2371 aic_decoder_select="golomb idctdsp"
2372 alac_encoder_select="lpc"
2373 als_decoder_select="bswapdsp"
2374 amrnb_decoder_select="lsp"
2375 amrwb_decoder_select="lsp"
2376 amv_decoder_select="sp5x_decoder exif"
2377 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2378 ape_decoder_select="bswapdsp llauddsp"
2379 apng_decoder_select="zlib"
2380 apng_encoder_select="llvidencdsp zlib"
2381 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2382 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2383 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2384 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2385 atrac1_decoder_select="mdct sinewin"
2386 atrac3_decoder_select="mdct"
2387 atrac3p_decoder_select="mdct sinewin"
2388 avrn_decoder_select="exif jpegtables"
2389 bink_decoder_select="blockdsp hpeldsp"
2390 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2391 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2392 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2393 cllc_decoder_select="bswapdsp"
2394 comfortnoise_encoder_select="lpc"
2395 cook_decoder_select="audiodsp mdct sinewin"
2396 cscd_decoder_select="lzo"
2397 cscd_decoder_suggest="zlib"
2398 dca_decoder_select="mdct"
2399 dds_decoder_select="texturedsp"
2400 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2401 dnxhd_decoder_select="blockdsp idctdsp"
2402 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2403 dvvideo_decoder_select="dvprofile idctdsp"
2404 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2405 dxa_decoder_select="zlib"
2406 dxv_decoder_select="lzf texturedsp"
2407 eac3_decoder_select="ac3_decoder"
2408 eac3_encoder_select="ac3_encoder"
2409 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2410 eatgq_decoder_select="aandcttables"
2411 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2412 exr_decoder_select="zlib"
2413 ffv1_decoder_select="golomb rangecoder"
2414 ffv1_encoder_select="rangecoder"
2415 ffvhuff_decoder_select="huffyuv_decoder"
2416 ffvhuff_encoder_select="huffyuv_encoder"
2417 fic_decoder_select="golomb"
2418 flac_decoder_select="flacdsp golomb"
2419 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2420 flashsv2_decoder_select="zlib"
2421 flashsv2_encoder_select="zlib"
2422 flashsv_decoder_select="zlib"
2423 flashsv_encoder_select="zlib"
2424 flv_decoder_select="h263_decoder"
2425 flv_encoder_select="h263_encoder"
2426 fourxm_decoder_select="blockdsp bswapdsp"
2427 fraps_decoder_select="bswapdsp huffman"
2428 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2429 g729_decoder_select="audiodsp"
2430 h261_decoder_select="mpegvideo"
2431 h261_encoder_select="aandcttables mpegvideoenc"
2432 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2433 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2434 h263i_decoder_select="h263_decoder"
2435 h263p_decoder_select="h263_decoder"
2436 h263p_encoder_select="h263_encoder"
2437 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2438 h264_decoder_suggest="error_resilience"
2439 hap_decoder_select="snappy texturedsp"
2440 hap_encoder_deps="libsnappy"
2441 hap_encoder_select="texturedspenc"
2442 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2443 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2444 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2445 iac_decoder_select="imc_decoder"
2446 imc_decoder_select="bswapdsp fft mdct sinewin"
2447 indeo3_decoder_select="hpeldsp"
2448 indeo4_decoder_select="ividsp"
2449 indeo5_decoder_select="ividsp"
2450 interplay_video_decoder_select="hpeldsp"
2451 jpegls_decoder_select="golomb mjpeg_decoder"
2452 jpegls_encoder_select="golomb"
2453 jv_decoder_select="blockdsp"
2454 lagarith_decoder_select="llviddsp"
2455 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2456 loco_decoder_select="golomb"
2457 magicyuv_decoder_select="llviddsp"
2458 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2459 metasound_decoder_select="lsp mdct sinewin"
2460 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2461 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2462 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2463 mjpegb_decoder_select="mjpeg_decoder"
2464 mlp_decoder_select="mlp_parser"
2465 motionpixels_decoder_select="bswapdsp"
2466 mp1_decoder_select="mpegaudio"
2467 mp1float_decoder_select="mpegaudio"
2468 mp2_decoder_select="mpegaudio"
2469 mp2float_decoder_select="mpegaudio"
2470 mp3_decoder_select="mpegaudio"
2471 mp3adu_decoder_select="mpegaudio"
2472 mp3adufloat_decoder_select="mpegaudio"
2473 mp3float_decoder_select="mpegaudio"
2474 mp3on4_decoder_select="mpegaudio"
2475 mp3on4float_decoder_select="mpegaudio"
2476 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2477 mpc8_decoder_select="mpegaudiodsp"
2478 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2479 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2480 mpegvideo_decoder_select="mpegvideo"
2481 mpeg1video_decoder_select="mpegvideo"
2482 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2483 mpeg2video_decoder_select="mpegvideo"
2484 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2485 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2486 mpeg4_encoder_select="h263_encoder"
2487 msa1_decoder_select="mss34dsp"
2488 msmpeg4v1_decoder_select="h263_decoder"
2489 msmpeg4v2_decoder_select="h263_decoder"
2490 msmpeg4v2_encoder_select="h263_encoder"
2491 msmpeg4v3_decoder_select="h263_decoder"
2492 msmpeg4v3_encoder_select="h263_encoder"
2493 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2494 mts2_decoder_select="mss34dsp"
2495 mxpeg_decoder_select="mjpeg_decoder"
2496 nellymoser_decoder_select="mdct sinewin"
2497 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2498 nuv_decoder_select="idctdsp lzo"
2499 on2avc_decoder_select="mdct"
2500 opus_decoder_deps="swresample"
2501 opus_decoder_select="mdct15"
2502 opus_encoder_select="audio_frame_queue mdct15"
2503 png_decoder_select="zlib"
2504 png_encoder_select="llvidencdsp zlib"
2505 prores_decoder_select="blockdsp idctdsp"
2506 prores_encoder_select="fdctdsp"
2507 qcelp_decoder_select="lsp"
2508 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2509 ra_144_decoder_select="audiodsp"
2510 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2511 ralf_decoder_select="golomb"
2512 rawvideo_decoder_select="bswapdsp"
2513 rscc_decoder_select="zlib"
2514 rtjpeg_decoder_select="me_cmp"
2515 rv10_decoder_select="h263_decoder"
2516 rv10_encoder_select="h263_encoder"
2517 rv20_decoder_select="h263_decoder"
2518 rv20_encoder_select="h263_encoder"
2519 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2520 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2521 screenpresso_decoder_select="zlib"
2522 shorten_decoder_select="golomb bswapdsp"
2523 sipr_decoder_select="lsp"
2524 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2525 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2526 sonic_decoder_select="golomb rangecoder"
2527 sonic_encoder_select="golomb rangecoder"
2528 sonic_ls_encoder_select="golomb rangecoder"
2529 sp5x_decoder_select="mjpeg_decoder"
2530 svq1_decoder_select="hpeldsp"
2531 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2532 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2533 svq3_decoder_suggest="zlib"
2534 tak_decoder_select="audiodsp"
2535 tdsc_decoder_select="zlib mjpeg_decoder"
2536 theora_decoder_select="vp3_decoder"
2537 thp_decoder_select="mjpeg_decoder"
2538 tiff_decoder_suggest="zlib lzma"
2539 tiff_encoder_suggest="zlib"
2540 truehd_decoder_select="mlp_parser"
2541 truemotion2_decoder_select="bswapdsp"
2542 truespeech_decoder_select="bswapdsp"
2543 tscc_decoder_select="zlib"
2544 twinvq_decoder_select="mdct lsp sinewin"
2545 txd_decoder_select="texturedsp"
2546 utvideo_decoder_select="bswapdsp llviddsp"
2547 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2548 vble_decoder_select="llviddsp"
2549 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2550 vc1_qsv_decoder_deps="libmfx"
2551 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2552 vc1image_decoder_select="vc1_decoder"
2553 vorbis_decoder_select="mdct"
2554 vorbis_encoder_select="mdct"
2555 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2556 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2557 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2558 vp6a_decoder_select="vp6_decoder"
2559 vp6f_decoder_select="vp6_decoder"
2560 vp7_decoder_select="h264pred videodsp vp8dsp"
2561 vp8_decoder_select="h264pred videodsp vp8dsp"
2562 vp9_decoder_select="videodsp vp9_parser"
2563 webp_decoder_select="vp8_decoder exif"
2564 wmalossless_decoder_select="llauddsp"
2565 wmapro_decoder_select="mdct sinewin wma_freqs"
2566 wmav1_decoder_select="mdct sinewin wma_freqs"
2567 wmav1_encoder_select="mdct sinewin wma_freqs"
2568 wmav2_decoder_select="mdct sinewin wma_freqs"
2569 wmav2_encoder_select="mdct sinewin wma_freqs"
2570 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2571 wmv1_decoder_select="h263_decoder"
2572 wmv1_encoder_select="h263_encoder"
2573 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2574 wmv2_encoder_select="h263_encoder wmv2dsp"
2575 wmv3_decoder_select="vc1_decoder"
2576 wmv3image_decoder_select="wmv3_decoder"
2577 xma1_decoder_select="wmapro_decoder"
2578 xma2_decoder_select="wmapro_decoder"
2579 zerocodec_decoder_select="zlib"
2580 zlib_decoder_select="zlib"
2581 zlib_encoder_select="zlib"
2582 zmbv_decoder_select="zlib"
2583 zmbv_encoder_select="zlib"
2584
2585 # platform codecs
2586 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2587 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2588
2589 # hardware accelerators
2590 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2591 cuda_deps_any="dlopen LoadLibrary"
2592 cuvid_deps="cuda"
2593 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2594 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2595 dxva2_extralibs="-luser32"
2596 vaapi_deps="va_va_h"
2597 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2598 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2599 vda_deps="vda_framework pthreads"
2600 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2601 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2602 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2603 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2604 xvmc_deps="X11_extensions_XvMClib_h"
2605
2606 h263_vaapi_hwaccel_deps="vaapi"
2607 h263_vaapi_hwaccel_select="h263_decoder"
2608 h263_videotoolbox_hwaccel_deps="videotoolbox"
2609 h263_videotoolbox_hwaccel_select="h263_decoder"
2610 h264_cuvid_hwaccel_deps="cuda cuvid"
2611 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2612 h264_d3d11va_hwaccel_deps="d3d11va"
2613 h264_d3d11va_hwaccel_select="h264_decoder"
2614 h264_dxva2_hwaccel_deps="dxva2"
2615 h264_dxva2_hwaccel_select="h264_decoder"
2616 h264_mediacodec_hwaccel_deps="mediacodec"
2617 h264_mmal_hwaccel_deps="mmal"
2618 h264_qsv_hwaccel_deps="libmfx"
2619 h264_vaapi_hwaccel_deps="vaapi"
2620 h264_vaapi_hwaccel_select="h264_decoder"
2621 h264_vda_hwaccel_deps="vda"
2622 h264_vda_hwaccel_select="h264_decoder"
2623 h264_vda_old_hwaccel_deps="vda"
2624 h264_vda_old_hwaccel_select="h264_decoder"
2625 h264_vdpau_hwaccel_deps="vdpau"
2626 h264_vdpau_hwaccel_select="h264_decoder"
2627 h264_videotoolbox_hwaccel_deps="videotoolbox"
2628 h264_videotoolbox_hwaccel_select="h264_decoder"
2629 hevc_cuvid_hwaccel_deps="cuda cuvid"
2630 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2631 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2632 hevc_d3d11va_hwaccel_select="hevc_decoder"
2633 hevc_mediacodec_hwaccel_deps="mediacodec"
2634 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2635 hevc_dxva2_hwaccel_select="hevc_decoder"
2636 hevc_qsv_hwaccel_deps="libmfx"
2637 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2638 hevc_vaapi_hwaccel_select="hevc_decoder"
2639 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2640 hevc_vdpau_hwaccel_select="hevc_decoder"
2641 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2642 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2643 mpeg_xvmc_hwaccel_deps="xvmc"
2644 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2645 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2646 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2647 mpeg1_vdpau_hwaccel_deps="vdpau"
2648 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2649 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2650 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2651 mpeg1_xvmc_hwaccel_deps="xvmc"
2652 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2653 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2654 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2655 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2656 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2657 mpeg2_dxva2_hwaccel_deps="dxva2"
2658 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2659 mpeg2_mmal_hwaccel_deps="mmal"
2660 mpeg2_qsv_hwaccel_deps="libmfx"
2661 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2662 mpeg2_vaapi_hwaccel_deps="vaapi"
2663 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2664 mpeg2_vdpau_hwaccel_deps="vdpau"
2665 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2666 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2667 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2668 mpeg2_xvmc_hwaccel_deps="xvmc"
2669 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2670 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2671 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2672 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2673 mpeg4_mmal_hwaccel_deps="mmal"
2674 mpeg4_vaapi_hwaccel_deps="vaapi"
2675 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2676 mpeg4_vdpau_hwaccel_deps="vdpau"
2677 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2678 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2679 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2680 vc1_cuvid_hwaccel_deps="cuda cuvid"
2681 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2682 vc1_d3d11va_hwaccel_deps="d3d11va"
2683 vc1_d3d11va_hwaccel_select="vc1_decoder"
2684 vc1_dxva2_hwaccel_deps="dxva2"
2685 vc1_dxva2_hwaccel_select="vc1_decoder"
2686 vc1_mmal_hwaccel_deps="mmal"
2687 vc1_qsv_hwaccel_deps="libmfx"
2688 vc1_qsv_hwaccel_select="qsvdec_vc1"
2689 vc1_vaapi_hwaccel_deps="vaapi"
2690 vc1_vaapi_hwaccel_select="vc1_decoder"
2691 vc1_vdpau_hwaccel_deps="vdpau"
2692 vc1_vdpau_hwaccel_select="vc1_decoder"
2693 vp8_cuvid_hwaccel_deps="cuda cuvid"
2694 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2695 vp9_cuvid_hwaccel_deps="cuda cuvid"
2696 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2697 vp8_mediacodec_hwaccel_deps="mediacodec"
2698 vp8_qsv_hwaccel_deps="libmfx"
2699 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2700 vp9_d3d11va_hwaccel_select="vp9_decoder"
2701 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2702 vp9_dxva2_hwaccel_select="vp9_decoder"
2703 vp9_mediacodec_hwaccel_deps="mediacodec"
2704 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2705 vp9_vaapi_hwaccel_select="vp9_decoder"
2706 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2707 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2708 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2709 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2710
2711 # hardware-accelerated codecs
2712 omx_deps="dlopen pthreads"
2713 omx_extralibs='$ldl'
2714 qsvdec_select="qsv"
2715 qsvenc_select="qsv"
2716 vaapi_encode_deps="vaapi"
2717
2718 hwupload_cuda_filter_deps="cuda"
2719 scale_npp_filter_deps="cuda libnpp"
2720
2721 nvenc_deps="cuda"
2722 nvenc_deps_any="dlopen LoadLibrary"
2723 nvenc_encoder_deps="nvenc"
2724
2725 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2726 h264_cuvid_decoder_deps="cuda cuvid"
2727 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2728 h264_mediacodec_decoder_deps="mediacodec"
2729 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2730 h264_mmal_decoder_deps="mmal"
2731 h264_nvenc_encoder_deps="nvenc"
2732 h264_omx_encoder_deps="omx"
2733 h264_qsv_decoder_deps="libmfx"
2734 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2735 h264_qsv_encoder_deps="libmfx"
2736 h264_qsv_encoder_select="qsvenc"
2737 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2738 h264_vaapi_encoder_select="vaapi_encode golomb"
2739 h264_vda_decoder_deps="vda"
2740 h264_vda_decoder_select="h264_decoder"
2741 h264_vdpau_decoder_deps="vdpau"
2742 h264_vdpau_decoder_select="h264_decoder"
2743 hevc_cuvid_decoder_deps="cuda cuvid"
2744 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2745 hevc_mediacodec_decoder_deps="mediacodec"
2746 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2747 hevc_nvenc_encoder_deps="nvenc"
2748 hevc_qsv_decoder_deps="libmfx"
2749 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2750 hevc_qsv_encoder_deps="libmfx"
2751 hevc_qsv_encoder_select="hevcparse qsvenc"
2752 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2753 hevc_vaapi_encoder_select="vaapi_encode golomb"
2754 mjpeg_cuvid_decoder_deps="cuda cuvid"
2755 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2756 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2757 mpeg1_cuvid_decoder_deps="cuda cuvid"
2758 mpeg1_vdpau_decoder_deps="vdpau"
2759 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2760 mpeg2_crystalhd_decoder_select="crystalhd"
2761 mpeg2_cuvid_decoder_deps="cuda cuvid"
2762 mpeg2_mmal_decoder_deps="mmal"
2763 mpeg2_qsv_decoder_deps="libmfx"
2764 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2765 mpeg2_qsv_encoder_deps="libmfx"
2766 mpeg2_qsv_encoder_select="qsvenc"
2767 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2768 mpeg2_vaapi_encoder_select="vaapi_encode"
2769 mpeg4_crystalhd_decoder_select="crystalhd"
2770 mpeg4_cuvid_decoder_deps="cuda cuvid"
2771 mpeg4_mediacodec_decoder_deps="mediacodec"
2772 mpeg4_mmal_decoder_deps="mmal"
2773 mpeg4_omx_encoder_deps="omx"
2774 mpeg4_vdpau_decoder_deps="vdpau"
2775 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2776 mpeg_vdpau_decoder_deps="vdpau"
2777 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2778 msmpeg4_crystalhd_decoder_select="crystalhd"
2779 nvenc_h264_encoder_deps="nvenc"
2780 nvenc_hevc_encoder_deps="nvenc"
2781 vc1_crystalhd_decoder_select="crystalhd"
2782 vc1_cuvid_decoder_deps="cuda cuvid"
2783 vc1_mmal_decoder_deps="mmal"
2784 vc1_vdpau_decoder_deps="vdpau"
2785 vc1_vdpau_decoder_select="vc1_decoder"
2786 vp8_cuvid_decoder_deps="cuda cuvid"
2787 vp8_mediacodec_decoder_deps="mediacodec"
2788 vp8_qsv_decoder_deps="libmfx"
2789 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2790 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2791 vp8_vaapi_encoder_select="vaapi_encode"
2792 vp9_cuvid_decoder_deps="cuda cuvid"
2793 vp9_mediacodec_decoder_deps="mediacodec"
2794 wmv3_crystalhd_decoder_select="crystalhd"
2795 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2796
2797 # parsers
2798 h264_parser_select="golomb h264dsp h264parse"
2799 hevc_parser_select="golomb hevcparse"
2800 mpegaudio_parser_select="mpegaudioheader"
2801 mpegvideo_parser_select="mpegvideo"
2802 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2803 vc1_parser_select="vc1dsp"
2804
2805 # bitstream_filters
2806 mjpeg2jpeg_bsf_select="jpegtables"
2807
2808 # external libraries
2809 aac_at_decoder_deps="audiotoolbox"
2810 ac3_at_decoder_deps="audiotoolbox"
2811 ac3_at_decoder_select="ac3_parser"
2812 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2813 alac_at_decoder_deps="audiotoolbox"
2814 amr_nb_at_decoder_deps="audiotoolbox"
2815 avisynth_deps_any="dlopen LoadLibrary"
2816 avisynth_demuxer_deps="avisynth"
2817 avisynth_demuxer_select="riffdec"
2818 eac3_at_decoder_deps="audiotoolbox"
2819 eac3_at_decoder_select="ac3_parser"
2820 gsm_ms_at_decoder_deps="audiotoolbox"
2821 ilbc_at_decoder_deps="audiotoolbox"
2822 mp1_at_decoder_deps="audiotoolbox"
2823 mp2_at_decoder_deps="audiotoolbox"
2824 mp3_at_decoder_deps="audiotoolbox"
2825 mp1_at_decoder_select="mpegaudioheader"
2826 mp2_at_decoder_select="mpegaudioheader"
2827 mp3_at_decoder_select="mpegaudioheader"
2828 pcm_alaw_at_decoder_deps="audiotoolbox"
2829 pcm_mulaw_at_decoder_deps="audiotoolbox"
2830 qdmc_at_decoder_deps="audiotoolbox"
2831 qdm2_at_decoder_deps="audiotoolbox"
2832 aac_at_encoder_deps="audiotoolbox"
2833 aac_at_encoder_select="audio_frame_queue"
2834 alac_at_encoder_deps="audiotoolbox"
2835 alac_at_encoder_select="audio_frame_queue"
2836 ilbc_at_encoder_deps="audiotoolbox"
2837 ilbc_at_encoder_select="audio_frame_queue"
2838 pcm_alaw_at_encoder_deps="audiotoolbox"
2839 pcm_alaw_at_encoder_select="audio_frame_queue"
2840 pcm_mulaw_at_encoder_deps="audiotoolbox"
2841 pcm_mulaw_at_encoder_select="audio_frame_queue"
2842 chromaprint_muxer_deps="chromaprint"
2843 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2844 libcelt_decoder_deps="libcelt"
2845 libfdk_aac_decoder_deps="libfdk_aac"
2846 libfdk_aac_encoder_deps="libfdk_aac"
2847 libfdk_aac_encoder_select="audio_frame_queue"
2848 libgme_demuxer_deps="libgme"
2849 libgsm_decoder_deps="libgsm"
2850 libgsm_encoder_deps="libgsm"
2851 libgsm_ms_decoder_deps="libgsm"
2852 libgsm_ms_encoder_deps="libgsm"
2853 libilbc_decoder_deps="libilbc"
2854 libilbc_encoder_deps="libilbc"
2855 libkvazaar_encoder_deps="libkvazaar"
2856 libmodplug_demuxer_deps="libmodplug"
2857 libmp3lame_encoder_deps="libmp3lame"
2858 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2859 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2860 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2861 libopencore_amrnb_encoder_select="audio_frame_queue"
2862 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2863 libopenh264_decoder_deps="libopenh264"
2864 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2865 libopenh264_encoder_deps="libopenh264"
2866 libopenjpeg_decoder_deps="libopenjpeg"
2867 libopenjpeg_encoder_deps="libopenjpeg"
2868 libopenmpt_demuxer_deps="libopenmpt"
2869 libopus_decoder_deps="libopus"
2870 libopus_encoder_deps="libopus"
2871 libopus_encoder_select="audio_frame_queue"
2872 libschroedinger_decoder_deps="libschroedinger"
2873 libschroedinger_encoder_deps="libschroedinger"
2874 libshine_encoder_deps="libshine"
2875 libshine_encoder_select="audio_frame_queue"
2876 libspeex_decoder_deps="libspeex"
2877 libspeex_encoder_deps="libspeex"
2878 libspeex_encoder_select="audio_frame_queue"
2879 libtheora_encoder_deps="libtheora"
2880 libtwolame_encoder_deps="libtwolame"
2881 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2882 libvorbis_decoder_deps="libvorbis"
2883 libvorbis_encoder_deps="libvorbis"
2884 libvorbis_encoder_select="audio_frame_queue"
2885 libvpx_vp8_decoder_deps="libvpx"
2886 libvpx_vp8_encoder_deps="libvpx"
2887 libvpx_vp9_decoder_deps="libvpx"
2888 libvpx_vp9_encoder_deps="libvpx"
2889 libwavpack_encoder_deps="libwavpack"
2890 libwavpack_encoder_select="audio_frame_queue"
2891 libwebp_encoder_deps="libwebp"
2892 libwebp_anim_encoder_deps="libwebp"
2893 libx262_encoder_deps="libx262"
2894 libx264_encoder_deps="libx264"
2895 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2896 libx264rgb_encoder_select="libx264_encoder"
2897 libx265_encoder_deps="libx265"
2898 libxavs_encoder_deps="libxavs"
2899 libxvid_encoder_deps="libxvid"
2900 libzvbi_teletext_decoder_deps="libzvbi"
2901 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2902 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2903 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2904 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2905 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2906
2907 # demuxers / muxers
2908 ac3_demuxer_select="ac3_parser"
2909 aiff_muxer_select="iso_media"
2910 asf_demuxer_select="riffdec"
2911 asf_o_demuxer_select="riffdec"
2912 asf_muxer_select="riffenc"
2913 asf_stream_muxer_select="asf_muxer"
2914 avi_demuxer_select="iso_media riffdec exif"
2915 avi_muxer_select="riffenc"
2916 caf_demuxer_select="iso_media riffdec"
2917 caf_muxer_select="iso_media"
2918 dash_muxer_select="mp4_muxer"
2919 dirac_demuxer_select="dirac_parser"
2920 dts_demuxer_select="dca_parser"
2921 dtshd_demuxer_select="dca_parser"
2922 dv_demuxer_select="dvprofile"
2923 dv_muxer_select="dvprofile"
2924 dxa_demuxer_select="riffdec"
2925 eac3_demuxer_select="ac3_parser"
2926 f4v_muxer_select="mov_muxer"
2927 fifo_muxer_deps="threads"
2928 flac_demuxer_select="flac_parser"
2929 hds_muxer_select="flv_muxer"
2930 hls_muxer_select="mpegts_muxer"
2931 image2_alias_pix_demuxer_select="image2_demuxer"
2932 image2_brender_pix_demuxer_select="image2_demuxer"
2933 ipod_muxer_select="mov_muxer"
2934 ismv_muxer_select="mov_muxer"
2935 libnut_demuxer_deps="libnut"
2936 libnut_muxer_deps="libnut"
2937 matroska_audio_muxer_select="matroska_muxer"
2938 matroska_demuxer_select="iso_media riffdec"
2939 matroska_demuxer_suggest="bzlib lzo zlib"
2940 matroska_muxer_select="iso_media riffenc"
2941 mmf_muxer_select="riffenc"
2942 mov_demuxer_select="iso_media riffdec"
2943 mov_demuxer_suggest="zlib"
2944 mov_muxer_select="iso_media riffenc rtpenc_chain"
2945 mp3_demuxer_select="mpegaudio_parser"
2946 mp3_muxer_select="mpegaudioheader"
2947 mp4_muxer_select="mov_muxer"
2948 mpegts_demuxer_select="iso_media"
2949 mpegts_muxer_select="adts_muxer latm_muxer"
2950 mpegtsraw_demuxer_select="mpegts_demuxer"
2951 mxf_d10_muxer_select="mxf_muxer"
2952 mxf_opatom_muxer_select="mxf_muxer"
2953 nut_muxer_select="riffenc"
2954 nuv_demuxer_select="riffdec"
2955 oga_muxer_select="ogg_muxer"
2956 ogg_demuxer_select="dirac_parse"
2957 ogv_muxer_select="ogg_muxer"
2958 opus_muxer_select="ogg_muxer"
2959 psp_muxer_select="mov_muxer"
2960 rtp_demuxer_select="sdp_demuxer"
2961 rtp_muxer_select="golomb"
2962 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2963 rtsp_demuxer_select="http_protocol rtpdec"
2964 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2965 sap_demuxer_select="sdp_demuxer"
2966 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2967 sdp_demuxer_select="rtpdec"
2968 smoothstreaming_muxer_select="ismv_muxer"
2969 spdif_muxer_select="aac_parser"
2970 spx_muxer_select="ogg_muxer"
2971 swf_demuxer_suggest="zlib"
2972 tak_demuxer_select="tak_parser"
2973 tg2_muxer_select="mov_muxer"
2974 tgp_muxer_select="mov_muxer"
2975 vobsub_demuxer_select="mpegps_demuxer"
2976 w64_demuxer_select="wav_demuxer"
2977 w64_muxer_select="wav_muxer"
2978 wav_demuxer_select="riffdec"
2979 wav_muxer_select="riffenc"
2980 webm_muxer_select="iso_media riffenc"
2981 webm_dash_manifest_demuxer_select="matroska_demuxer"
2982 wtv_demuxer_select="mpegts_demuxer riffdec"
2983 wtv_muxer_select="mpegts_muxer riffenc"
2984 xmv_demuxer_select="riffdec"
2985 xwma_demuxer_select="riffdec"
2986
2987 # indevs / outdevs
2988 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2989 alsa_outdev_deps="alsa_asoundlib_h"
2990 avfoundation_indev_deps="pthreads"
2991 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2992 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2993 caca_outdev_deps="libcaca"
2994 decklink_indev_deps="decklink pthreads"
2995 decklink_indev_extralibs="-lstdc++"
2996 decklink_outdev_deps="decklink pthreads"
2997 decklink_outdev_extralibs="-lstdc++"
2998 dshow_indev_deps="IBaseFilter"
2999 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3000 dv1394_indev_deps="dv1394"
3001 dv1394_indev_select="dv_demuxer"
3002 fbdev_indev_deps="linux_fb_h"
3003 fbdev_outdev_deps="linux_fb_h"
3004 gdigrab_indev_deps="CreateDIBSection"
3005 gdigrab_indev_extralibs="-lgdi32"
3006 gdigrab_indev_select="bmp_decoder"
3007 iec61883_indev_deps="libiec61883"
3008 jack_indev_deps="jack_jack_h"
3009 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3010 lavfi_indev_deps="avfilter"
3011 libcdio_indev_deps="libcdio"
3012 libdc1394_indev_deps="libdc1394"
3013 libv4l2_indev_deps="libv4l2"
3014 openal_indev_deps="openal"
3015 opengl_outdev_deps="opengl"
3016 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3017 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3018 pulse_indev_deps="libpulse"
3019 pulse_outdev_deps="libpulse"
3020 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3021 qtkit_indev_select="qtkit"
3022 sdl2_outdev_deps="sdl2"
3023 sndio_indev_deps="sndio_h"
3024 sndio_outdev_deps="sndio_h"
3025 v4l_indev_deps="linux_videodev_h"
3026 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3027 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3028 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3029 vfwcap_indev_extralibs="-lavicap32"
3030 xcbgrab_indev_deps="libxcb"
3031 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3032 xv_outdev_extralibs="-lXv -lX11 -lXext"
3033
3034 # protocols
3035 async_protocol_deps="threads"
3036 bluray_protocol_deps="libbluray"
3037 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3038 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3039 ffrtmpcrypt_protocol_select="tcp_protocol"
3040 ffrtmphttp_protocol_deps="!librtmp_protocol"
3041 ffrtmphttp_protocol_select="http_protocol"
3042 ftp_protocol_select="tcp_protocol"
3043 gopher_protocol_select="network"
3044 http_protocol_select="tcp_protocol"
3045 httpproxy_protocol_select="tcp_protocol"
3046 https_protocol_select="tls_protocol"
3047 icecast_protocol_select="http_protocol"
3048 librtmp_protocol_deps="librtmp"
3049 librtmpe_protocol_deps="librtmp"
3050 librtmps_protocol_deps="librtmp"
3051 librtmpt_protocol_deps="librtmp"
3052 librtmpte_protocol_deps="librtmp"
3053 libsmbclient_protocol_deps="libsmbclient gplv3"
3054 libssh_protocol_deps="libssh"
3055 mmsh_protocol_select="http_protocol"
3056 mmst_protocol_select="network"
3057 rtmp_protocol_deps="!librtmp_protocol"
3058 rtmp_protocol_select="tcp_protocol"
3059 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3060 rtmps_protocol_deps="!librtmp_protocol"
3061 rtmps_protocol_select="tls_protocol"
3062 rtmpt_protocol_select="ffrtmphttp_protocol"
3063 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3064 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3065 rtp_protocol_select="udp_protocol"
3066 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3067 sctp_protocol_select="network"
3068 srtp_protocol_select="rtp_protocol srtp"
3069 tcp_protocol_select="network"
3070 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3071 tls_gnutls_protocol_select="tcp_protocol"
3072 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3073 tls_openssl_protocol_select="tcp_protocol"
3074 tls_schannel_protocol_deps="schannel"
3075 tls_schannel_protocol_select="tcp_protocol"
3076 tls_securetransport_protocol_deps="securetransport"
3077 tls_securetransport_protocol_select="tcp_protocol"
3078 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3079 udp_protocol_select="network"
3080 udplite_protocol_select="network"
3081 unix_protocol_deps="sys_un_h"
3082 unix_protocol_select="network"
3083
3084 # filters
3085 afftfilt_filter_deps="avcodec"
3086 afftfilt_filter_select="fft"
3087 amovie_filter_deps="avcodec avformat"
3088 aresample_filter_deps="swresample"
3089 ass_filter_deps="libass"
3090 atempo_filter_deps="avcodec"
3091 atempo_filter_select="rdft"
3092 azmq_filter_deps="libzmq"
3093 blackframe_filter_deps="gpl"
3094 boxblur_filter_deps="gpl"
3095 bs2b_filter_deps="libbs2b"
3096 colormatrix_filter_deps="gpl"
3097 cover_rect_filter_deps="avcodec avformat gpl"
3098 cropdetect_filter_deps="gpl"
3099 deinterlace_qsv_filter_deps="libmfx"
3100 deinterlace_vaapi_filter_deps="vaapi"
3101 delogo_filter_deps="gpl"
3102 deshake_filter_select="pixelutils"
3103 drawtext_filter_deps="libfreetype"
3104 eq_filter_deps="gpl"
3105 fftfilt_filter_deps="avcodec"
3106 fftfilt_filter_select="rdft"
3107 find_rect_filter_deps="avcodec avformat gpl"
3108 firequalizer_filter_deps="avcodec"
3109 firequalizer_filter_select="rdft"
3110 flite_filter_deps="libflite"
3111 framerate_filter_select="pixelutils"
3112 frei0r_filter_deps="frei0r dlopen"
3113 frei0r_src_filter_deps="frei0r dlopen"
3114 fspp_filter_deps="gpl"
3115 geq_filter_deps="gpl"
3116 histeq_filter_deps="gpl"
3117 hqdn3d_filter_deps="gpl"
3118 interlace_filter_deps="gpl"
3119 kerndeint_filter_deps="gpl"
3120 ladspa_filter_deps="ladspa dlopen"
3121 mcdeint_filter_deps="avcodec gpl"
3122 movie_filter_deps="avcodec avformat"
3123 mpdecimate_filter_deps="gpl"
3124 mpdecimate_filter_select="pixelutils"
3125 mptestsrc_filter_deps="gpl"
3126 negate_filter_deps="lut_filter"
3127 nnedi_filter_deps="gpl"
3128 ocr_filter_deps="libtesseract"
3129 ocv_filter_deps="libopencv"
3130 owdenoise_filter_deps="gpl"
3131 pan_filter_deps="swresample"
3132 perspective_filter_deps="gpl"
3133 phase_filter_deps="gpl"
3134 pp7_filter_deps="gpl"
3135 pp_filter_deps="gpl postproc"
3136 pullup_filter_deps="gpl"
3137 removelogo_filter_deps="avcodec avformat swscale"
3138 repeatfields_filter_deps="gpl"
3139 resample_filter_deps="avresample"
3140 rubberband_filter_deps="librubberband"
3141 sab_filter_deps="gpl swscale"
3142 scale2ref_filter_deps="swscale"
3143 scale_filter_deps="swscale"
3144 scale_qsv_filter_deps="libmfx"
3145 select_filter_select="pixelutils"
3146 showcqt_filter_deps="avcodec avformat swscale"
3147 showcqt_filter_select="fft"
3148 showfreqs_filter_deps="avcodec"
3149 showfreqs_filter_select="fft"
3150 showspectrum_filter_deps="avcodec"
3151 showspectrum_filter_select="fft"
3152 showspectrumpic_filter_deps="avcodec"
3153 showspectrumpic_filter_select="fft"
3154 signature_filter_deps="gpl avcodec avformat"
3155 smartblur_filter_deps="gpl swscale"
3156 sofalizer_filter_deps="netcdf avcodec"
3157 sofalizer_filter_select="fft"
3158 spectrumsynth_filter_deps="avcodec"
3159 spectrumsynth_filter_select="fft"
3160 spp_filter_deps="gpl avcodec"
3161 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3162 stereo3d_filter_deps="gpl"
3163 subtitles_filter_deps="avformat avcodec libass"
3164 super2xsai_filter_deps="gpl"
3165 pixfmts_super2xsai_test_deps="super2xsai_filter"
3166 tinterlace_filter_deps="gpl"
3167 tinterlace_merge_test_deps="tinterlace_filter"
3168 tinterlace_pad_test_deps="tinterlace_filter"
3169 uspp_filter_deps="gpl avcodec"
3170 vaguedenoiser_filter_deps="gpl"
3171 vidstabdetect_filter_deps="libvidstab"
3172 vidstabtransform_filter_deps="libvidstab"
3173 zmq_filter_deps="libzmq"
3174 zoompan_filter_deps="swscale"
3175 zscale_filter_deps="libzimg"
3176 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3177
3178 # examples
3179 avio_dir_cmd_deps="avformat avutil"
3180 avio_reading_deps="avformat avcodec avutil"
3181 decode_audio_example_deps="avcodec avutil"
3182 decode_video_example_deps="avcodec avutil"
3183 demuxing_decoding_example_deps="avcodec avformat avutil"
3184 encode_audio_example_deps="avcodec avutil"
3185 encode_video_example_deps="avcodec avutil"
3186 extract_mvs_example_deps="avcodec avformat avutil"
3187 filter_audio_example_deps="avfilter avutil"
3188 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3189 filtering_video_example_deps="avfilter avcodec avformat avutil"
3190 http_multiclient_example_deps="avformat avutil fork"
3191 metadata_example_deps="avformat avutil"
3192 muxing_example_deps="avcodec avformat avutil swscale"
3193 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3194 remuxing_example_deps="avcodec avformat avutil"
3195 resampling_audio_example_deps="avutil swresample"
3196 scaling_video_example_deps="avutil swscale"
3197 transcode_aac_example_deps="avcodec avformat swresample"
3198 transcoding_example_deps="avfilter avcodec avformat avutil"
3199
3200 # libraries, in linking order
3201 avcodec_deps="avutil"
3202 avdevice_deps="avformat avcodec avutil"
3203 avfilter_deps="avutil"
3204 avformat_deps="avcodec avutil"
3205 avresample_deps="avutil"
3206 postproc_deps="avutil gpl"
3207 swresample_deps="avutil"
3208 swscale_deps="avutil"
3209
3210 # programs
3211 ffmpeg_deps="avcodec avfilter avformat swresample"
3212 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3213                null_filter
3214                trim_filter"
3215 ffplay_deps="avcodec avformat swscale swresample sdl2"
3216 ffplay_libs='$sdl2_libs'
3217 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3218 ffprobe_deps="avcodec avformat"
3219 ffserver_deps="avformat fork sarestart"
3220 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3221
3222 # documentation
3223 podpages_deps="perl"
3224 manpages_deps="perl pod2man"
3225 htmlpages_deps="perl"
3226 htmlpages_deps_any="makeinfo_html texi2html"
3227 txtpages_deps="perl makeinfo"
3228 doc_deps_any="manpages htmlpages podpages txtpages"
3229
3230 # default parameters
3231
3232 logfile="config.log"
3233
3234 # installation paths
3235 prefix_default="/usr/local"
3236 bindir_default='${prefix}/bin'
3237 datadir_default='${prefix}/share/ffmpeg'
3238 docdir_default='${prefix}/share/doc/ffmpeg'
3239 incdir_default='${prefix}/include'
3240 libdir_default='${prefix}/lib'
3241 mandir_default='${prefix}/share/man'
3242
3243 # toolchain
3244 ar_default="ar"
3245 cc_default="gcc"
3246 cxx_default="g++"
3247 host_cc_default="gcc"
3248 doxygen_default="doxygen"
3249 install="install"
3250 ln_s_default="ln -s -f"
3251 nm_default="nm -g"
3252 objformat="elf"
3253 pkg_config_default=pkg-config
3254 ranlib_default="ranlib"
3255 strip_default="strip"
3256 version_script='--version-script'
3257 yasmexe_default="yasm"
3258 windres_default="windres"
3259
3260 # OS
3261 target_os_default=$(tolower $(uname -s))
3262 host_os=$target_os_default
3263
3264 # machine
3265 if test "$target_os_default" = aix; then
3266     arch_default=$(uname -p)
3267     strip_default="strip -X32_64"
3268 else
3269     arch_default=$(uname -m)
3270 fi
3271 cpu="generic"
3272 intrinsics="none"
3273
3274 # configurable options
3275 enable $PROGRAM_LIST
3276 enable $DOCUMENT_LIST
3277 enable $EXAMPLE_LIST
3278 enable $(filter_out avresample $LIBRARY_LIST)
3279 enable stripping
3280
3281 enable asm
3282 enable debug
3283 enable doc
3284 enable faan faandct faanidct
3285 enable optimizations
3286 enable runtime_cpudetect
3287 enable safe_bitstream_reader
3288 enable static
3289 enable swscale_alpha
3290 enable valgrind_backtrace
3291
3292 sws_max_filter_size_default=256
3293 set_default sws_max_filter_size
3294
3295 # build settings
3296 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3297 LIBPREF="lib"
3298 LIBSUF=".a"
3299 FULLNAME='$(NAME)$(BUILDSUF)'
3300 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3301 SLIBPREF="lib"
3302 SLIBSUF=".so"
3303 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3304 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3305 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3306 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3307 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3308 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3309 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3310
3311 asflags_filter=echo
3312 cflags_filter=echo
3313 ldflags_filter=echo
3314
3315 AS_C='-c'
3316 AS_O='-o $@'
3317 CC_C='-c'
3318 CC_E='-E -o $@'
3319 CC_O='-o $@'
3320 CXX_C='-c'
3321 CXX_O='-o $@'
3322 OBJCC_C='-c'
3323 OBJCC_E='-E -o $@'
3324 OBJCC_O='-o $@'
3325 LD_O='-o $@'
3326 LD_LIB='-l%'
3327 LD_PATH='-L'
3328 HOSTCC_C='-c'
3329 HOSTCC_E='-E -o $@'
3330 HOSTCC_O='-o $@'
3331 HOSTLD_O='-o $@'
3332
3333 host_libs='-lm'
3334 host_cflags_filter=echo
3335 host_ldflags_filter=echo
3336
3337 target_path='$(CURDIR)'
3338
3339 # since the object filename is not given with the -MM flag, the compiler
3340 # is only able to print the basename, and we must add the path ourselves
3341 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3342 DEPFLAGS='-MM'
3343
3344 # find source path
3345 if test -f configure; then
3346     source_path=.
3347 else
3348     source_path=$(cd $(dirname "$0"); pwd)
3349     case "$source_path" in
3350         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3351     esac
3352     test -e "$source_path/config.h" &&
3353         die "Out of tree builds are impossible with config.h in source dir."
3354 fi
3355
3356 for v in "$@"; do
3357     r=${v#*=}
3358     l=${v%"$r"}
3359     r=$(sh_quote "$r")
3360     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3361 done
3362
3363 find_things(){
3364     thing=$1
3365     pattern=$2
3366     file=$source_path/$3
3367     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3368 }
3369
3370 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3371 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3372 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3373 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3374 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3375 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3376 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3377 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3378 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3379
3380 find_things_extern(){
3381     thing=$1
3382     pattern=$2
3383     file=$source_path/$3
3384     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3385 }
3386
3387 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3388 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3389
3390 ALL_COMPONENTS="
3391     $BSF_LIST
3392     $DECODER_LIST
3393     $DEMUXER_LIST
3394     $ENCODER_LIST
3395     $FILTER_LIST
3396     $HWACCEL_LIST
3397     $INDEV_LIST
3398     $MUXER_LIST
3399     $OUTDEV_LIST
3400     $PARSER_LIST
3401     $PROTOCOL_LIST
3402 "
3403
3404 for n in $COMPONENT_LIST; do
3405     v=$(toupper ${n%s})_LIST
3406     eval enable \$$v
3407     eval ${n}_if_any="\$$v"
3408 done
3409
3410 enable $ARCH_EXT_LIST
3411
3412 die_unknown(){
3413     echo "Unknown option \"$1\"."
3414     echo "See $0 --help for available options."
3415     exit 1
3416 }
3417
3418 print_in_columns() {
3419     cols=$(expr $ncols / 24)
3420     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3421 }
3422
3423 show_list() {
3424     suffix=_$1
3425     shift
3426     echo $* | sed s/$suffix//g | print_in_columns
3427     exit 0
3428 }
3429
3430 rand_list(){
3431     IFS=', '
3432     set -- $*
3433     unset IFS
3434     for thing; do
3435         comp=${thing%:*}
3436         prob=${thing#$comp}
3437         prob=${prob#:}
3438         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3439         echo "prob ${prob:-0.5}"
3440         printf '%s\n' $comp
3441     done
3442 }
3443
3444 do_random(){
3445     action=$1
3446     shift
3447     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3448     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3449 }
3450
3451 for opt do
3452     optval="${opt#*=}"
3453     case "$opt" in
3454         --extra-ldflags=*)
3455             add_ldflags $optval
3456         ;;
3457         --extra-ldexeflags=*)
3458             add_ldexeflags $optval
3459         ;;
3460         --extra-ldlibflags=*)
3461             add_ldlibflags $optval
3462         ;;
3463         --extra-libs=*)
3464             add_extralibs $optval
3465         ;;
3466         --disable-devices)
3467             disable $INDEV_LIST $OUTDEV_LIST
3468         ;;
3469         --enable-debug=*)
3470             debuglevel="$optval"
3471         ;;
3472         --disable-programs)
3473             disable $PROGRAM_LIST
3474         ;;
3475         --disable-everything)
3476             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3477         ;;
3478         --disable-all)
3479             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3480             disable $LIBRARY_LIST $PROGRAM_LIST doc
3481             enable avutil
3482         ;;
3483         --enable-random|--disable-random)
3484             action=${opt%%-random}
3485             do_random ${action#--} $COMPONENT_LIST
3486         ;;
3487         --enable-random=*|--disable-random=*)
3488             action=${opt%%-random=*}
3489             do_random ${action#--} $optval
3490         ;;
3491         --enable-*=*|--disable-*=*)
3492             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3493             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3494             eval list=\$$(toupper $thing)_LIST
3495             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3496             list=$(filter "$name" $list)
3497             [ "$list" = "" ] && warn "Option $opt did not match anything"
3498             $action $list
3499         ;;
3500         --enable-?*|--disable-?*)
3501             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3502             if is_in $option $COMPONENT_LIST; then
3503                 test $action = disable && action=unset
3504                 eval $action \$$(toupper ${option%s})_LIST
3505             elif is_in $option $CMDLINE_SELECT; then
3506                 $action $option
3507             else
3508                 die_unknown $opt
3509             fi
3510         ;;
3511         --list-*)
3512             NAME="${opt#--list-}"
3513             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3514             NAME=${NAME%s}
3515             eval show_list $NAME \$$(toupper $NAME)_LIST
3516         ;;
3517         --help|-h) show_help
3518         ;;
3519         --quiet|-q) quiet=yes
3520         ;;
3521         --fatal-warnings) enable fatal_warnings
3522         ;;
3523         *)
3524             optname="${opt%%=*}"
3525             optname="${optname#--}"
3526             optname=$(echo "$optname" | sed 's/-/_/g')
3527             if is_in $optname $CMDLINE_SET; then
3528                 eval $optname='$optval'
3529             elif is_in $optname $CMDLINE_APPEND; then
3530                 append $optname "$optval"
3531             else
3532                 die_unknown $opt
3533             fi
3534         ;;
3535     esac
3536 done
3537
3538 for e in $env; do
3539     eval "export $e"
3540 done
3541
3542 # Mark specifically enabled, but normally autodetected libraries as requested.
3543 for lib in $AUTODETECT_LIBS; do
3544     enabled $lib && request $lib
3545 done
3546
3547 # Enable platform codecs by default.
3548 enable_weak audiotoolbox
3549
3550 # Enable hwaccels by default.
3551 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3552 enable_weak xlib
3553
3554 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3555
3556 disabled logging && logfile=/dev/null
3557
3558 die_license_disabled() {
3559     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3560 }
3561
3562 die_license_disabled_gpl() {
3563     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3564 }
3565
3566 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3567 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3568
3569 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3570 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3571
3572 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3573
3574 # Disable all the library-specific components if the library itself
3575 # is disabled, see AVCODEC_LIST and following _LIST variables.
3576
3577 disable_components(){
3578     disabled ${1} && disable $(
3579         eval components="\$$(toupper ${1})_COMPONENTS"
3580         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3581     )
3582 }
3583
3584 map 'disable_components $v' $LIBRARY_LIST
3585
3586 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3587 set >> $logfile
3588
3589 test -n "$valgrind" && toolchain="valgrind-memcheck"
3590
3591 case "$toolchain" in
3592     *-asan)
3593         cc_default="${toolchain%-asan}"
3594         add_cflags  -fsanitize=address
3595         add_ldflags -fsanitize=address
3596     ;;
3597     *-msan)
3598         cc_default="${toolchain%-msan}"
3599         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3600         add_ldflags -fsanitize=memory
3601     ;;
3602     *-tsan)
3603         cc_default="${toolchain%-tsan}"
3604         add_cflags  -fsanitize=thread -fPIE
3605         add_ldflags -fsanitize=thread -pie
3606         case "$toolchain" in
3607             gcc-tsan)
3608                 add_cflags  -fPIC
3609                 add_ldflags -fPIC
3610                 ;;
3611         esac
3612     ;;
3613     *-usan)
3614         cc_default="${toolchain%-usan}"
3615         add_cflags  -fsanitize=undefined
3616         add_ldflags -fsanitize=undefined
3617     ;;
3618     valgrind-*)
3619         target_exec_default="valgrind"
3620         case "$toolchain" in
3621             valgrind-massif)
3622                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3623                 ;;
3624             valgrind-memcheck)
3625                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3626                 ;;
3627         esac
3628     ;;
3629     msvc)
3630         # Check whether the current MSVC version needs the C99 converter.
3631         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3632         # support enough of C99 to build ffmpeg. Default to the new
3633         # behaviour if the regexp was unable to match anything, since this
3634         # successfully parses the version number of existing supported
3635         # versions that require the converter (MSVC 2010 and 2012).
3636         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3637         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3638             cc_default="cl"
3639         else
3640             cc_default="c99wrap cl"
3641         fi
3642         ld_default="$source_path/compat/windows/mslink"
3643         nm_default="dumpbin -symbols"
3644         ar_default="lib"
3645         case "$arch" in
3646         arm*)
3647             as_default="armasm"
3648             ;;
3649         esac
3650         target_os_default="win32"
3651         # Use a relative path for TMPDIR. This makes sure all the
3652         # ffconf temp files are written with a relative path, avoiding
3653         # issues with msys/win32 path conversion for MSVC parameters
3654         # such as -Fo<file> or -out:<file>.
3655         TMPDIR=.
3656     ;;
3657     icl)
3658         cc_default="icl"
3659         ld_default="xilink"
3660         nm_default="dumpbin -symbols"
3661         ar_default="xilib"
3662         target_os_default="win32"
3663         TMPDIR=.
3664     ;;
3665     gcov)
3666         add_cflags  -fprofile-arcs -ftest-coverage
3667         add_ldflags -fprofile-arcs -ftest-coverage
3668     ;;
3669     llvm-cov)
3670         add_cflags -fprofile-arcs -ftest-coverage
3671         add_ldflags --coverage
3672     ;;
3673     hardened)
3674         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3675         add_cflags   -fno-strict-overflow -fstack-protector-all
3676         add_ldflags  -Wl,-z,relro -Wl,-z,now
3677         add_cflags   -fPIE
3678         add_ldexeflags -fPIE -pie
3679     ;;
3680     ?*)
3681         die "Unknown toolchain $toolchain"
3682     ;;
3683 esac
3684
3685 test -n "$cross_prefix" && enable cross_compile
3686
3687 if enabled cross_compile; then
3688     test -n "$arch" && test -n "$target_os" ||
3689         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3690 fi
3691
3692 ar_default="${cross_prefix}${ar_default}"
3693 cc_default="${cross_prefix}${cc_default}"
3694 cxx_default="${cross_prefix}${cxx_default}"
3695 nm_default="${cross_prefix}${nm_default}"
3696 pkg_config_default="${cross_prefix}${pkg_config_default}"
3697 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3698     ranlib_default="${cross_prefix}${ranlib_default} -D"
3699 else
3700     ranlib_default="${cross_prefix}${ranlib_default}"
3701 fi
3702 strip_default="${cross_prefix}${strip_default}"
3703 windres_default="${cross_prefix}${windres_default}"
3704
3705 sysinclude_default="${sysroot}/usr/include"
3706
3707 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3708     target_exec target_os yasmexe
3709 enabled cross_compile || host_cc_default=$cc
3710 set_default host_cc
3711
3712 pkg_config_fail_message=""
3713 if ! $pkg_config --version >/dev/null 2>&1; then
3714     warn "$pkg_config not found, library detection may fail."
3715     pkg_config=false
3716 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3717     pkg_config_fail_message="
3718 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3719 fi
3720
3721 if test $doxygen != $doxygen_default && \
3722   ! $doxygen --version >/dev/null 2>&1; then
3723     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3724 fi
3725
3726 exesuf() {
3727     case $1 in
3728         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3729     esac
3730 }
3731
3732 EXESUF=$(exesuf $target_os)
3733 HOSTEXESUF=$(exesuf $host_os)
3734
3735 # set temporary file name
3736 : ${TMPDIR:=$TEMPDIR}
3737 : ${TMPDIR:=$TMP}
3738 : ${TMPDIR:=/tmp}
3739
3740 if [ -n "$tempprefix" ] ; then
3741     mktemp(){
3742         echo $tempprefix.${HOSTNAME}.${UID}
3743     }
3744 elif ! check_cmd mktemp -u XXXXXX; then
3745     # simple replacement for missing mktemp
3746     # NOT SAFE FOR GENERAL USE
3747     mktemp(){
3748         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3749     }
3750 fi
3751
3752 tmpfile(){
3753     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3754         (set -C; exec > $tmp) 2>/dev/null ||
3755         die "Unable to create temporary file in $TMPDIR."
3756     append TMPFILES $tmp
3757     eval $1=$tmp
3758 }
3759
3760 trap 'rm -f -- $TMPFILES' EXIT
3761
3762 tmpfile TMPASM .asm
3763 tmpfile TMPC   .c
3764 tmpfile TMPCPP .cpp
3765 tmpfile TMPE   $EXESUF
3766 tmpfile TMPH   .h
3767 tmpfile TMPM   .m
3768 tmpfile TMPO   .o
3769 tmpfile TMPS   .S
3770 tmpfile TMPSH  .sh
3771 tmpfile TMPV   .ver
3772
3773 unset -f mktemp
3774
3775 chmod +x $TMPE
3776
3777 # make sure we can execute files in $TMPDIR
3778 cat > $TMPSH 2>> $logfile <<EOF
3779 #! /bin/sh
3780 EOF
3781 chmod +x $TMPSH >> $logfile 2>&1
3782 if ! $TMPSH >> $logfile 2>&1; then
3783     cat <<EOF
3784 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3785 variable to another directory and make sure that it is not mounted noexec.
3786 EOF
3787     die "Sanity test failed."
3788 fi
3789
3790 armasm_flags(){
3791     for flag; do
3792         case $flag in
3793             # Filter out MSVC cl.exe options from cflags that shouldn't
3794             # be passed to gas-preprocessor
3795             -M[TD]*)                                            ;;
3796             *)                  echo $flag                      ;;
3797         esac
3798    done
3799 }
3800
3801 ccc_flags(){
3802     for flag; do
3803         case $flag in
3804             -std=c99)           echo -c99                       ;;
3805             -mcpu=*)            echo -arch ${flag#*=}           ;;
3806             -mieee)             echo -ieee                      ;;
3807             -O*|-fast)          echo $flag                      ;;
3808             -fno-math-errno)    echo -assume nomath_errno       ;;
3809             -g)                 echo -g3                        ;;
3810             -Wall)              echo -msg_enable level2         ;;
3811             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3812             -Wl,*)              echo $flag                      ;;
3813             -f*|-W*)                                            ;;
3814             *)                  echo $flag                      ;;
3815         esac
3816    done
3817 }
3818
3819 cparser_flags(){
3820     for flag; do
3821         case $flag in
3822             -Wno-switch)             echo -Wno-switch-enum ;;
3823             -Wno-format-zero-length) ;;
3824             -Wdisabled-optimization) ;;
3825             -Wno-pointer-sign)       echo -Wno-other ;;
3826             *)                       echo $flag ;;
3827         esac
3828     done
3829 }
3830
3831 msvc_common_flags(){
3832     for flag; do
3833         case $flag in
3834             # In addition to specifying certain flags under the compiler
3835             # specific filters, they must be specified here as well or else the
3836             # generic catch all at the bottom will print the original flag.
3837             -Wall)                ;;
3838             -std=c99)             ;;
3839             # Common flags
3840             -fomit-frame-pointer) ;;
3841             -g)                   echo -Z7 ;;
3842             -fno-math-errno)      ;;
3843             -fno-common)          ;;
3844             -fno-signed-zeros)    ;;
3845             -fPIC)                ;;
3846             -mthumb)              ;;
3847             -march=*)             ;;
3848             -lz)                  echo zlib.lib ;;
3849             -lavicap32)           echo vfw32.lib user32.lib ;;
3850             -lx264)               echo libx264.lib ;;
3851             -l*)                  echo ${flag#-l}.lib ;;
3852             -LARGEADDRESSAWARE)   echo $flag ;;
3853             -L*)                  echo -libpath:${flag#-L} ;;
3854             *)                    echo $flag ;;
3855         esac
3856     done
3857 }
3858
3859 msvc_flags(){
3860     msvc_common_flags "$@"
3861     for flag; do
3862         case $flag in
3863             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3864                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3865                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3866                                        -wd4307 \
3867                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3868         esac
3869     done
3870 }
3871
3872 icl_flags(){
3873     msvc_common_flags "$@"
3874     for flag; do
3875         case $flag in
3876             # Despite what Intel's documentation says -Wall, which is supported
3877             # on Windows, does enable remarks so disable them here.
3878             -Wall)                echo $flag -Qdiag-disable:remark ;;
3879             -std=c99)             echo -Qstd=c99 ;;
3880             -flto)                echo -ipo ;;
3881         esac
3882     done
3883 }
3884
3885 icc_flags(){
3886     for flag; do
3887         case $flag in
3888             -flto)                echo -ipo ;;
3889             *)                    echo $flag ;;
3890         esac
3891     done
3892 }
3893
3894 pgi_flags(){
3895     for flag; do
3896         case $flag in
3897             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3898             -fomit-frame-pointer) echo -Mnoframe ;;
3899             -g)                   echo -gopt ;;
3900             *)                    echo $flag ;;
3901         esac
3902     done
3903 }
3904
3905 suncc_flags(){
3906     for flag; do
3907         case $flag in
3908             -march=*|-mcpu=*)
3909                 case "${flag#*=}" in
3910                     native)                   echo -xtarget=native       ;;
3911                     v9|niagara)               echo -xarch=sparc          ;;
3912                     ultrasparc)               echo -xarch=sparcvis       ;;
3913                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3914                     i586|pentium)             echo -xchip=pentium        ;;
3915                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3916                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3917                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3918                     pentium4*)          echo -xtarget=pentium4           ;;
3919                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3920                     *-sse3)             echo -xarch=sse3                 ;;
3921                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3922                     bonnell)                   echo -xarch=ssse3         ;;
3923                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3924                     westmere)                  echo -xtarget=westmere    ;;
3925                     silvermont)                echo -xarch=sse4_2        ;;
3926                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3927                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3928                                                echo -xarch=avx           ;;
3929                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3930                     btver1)                    echo -xarch=amdsse4a      ;;
3931                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3932                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3933                     k8|opteron|athlon64|athlon-fx)
3934                                                echo -xarch=sse2a         ;;
3935                     athlon*)                   echo -xarch=pentium_proa  ;;
3936                 esac
3937                 ;;
3938             -std=c99)             echo -xc99              ;;
3939             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3940             -fPIC)                echo -KPIC -xcode=pic32 ;;
3941             -W*,*)                echo $flag              ;;
3942             -f*-*|-W*|-mimpure-text)                      ;;
3943             -shared)              echo -G                 ;;
3944             *)                    echo $flag              ;;
3945         esac
3946     done
3947 }
3948
3949 tms470_flags(){
3950     for flag; do
3951         case $flag in
3952             -march=*|-mcpu=*)
3953                 case "${flag#*=}" in
3954                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3955                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3956                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3957                     armv6*|arm11*)          echo -mv=6   ;;
3958                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3959                                             echo -mv=5e  ;;
3960                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3961                 esac
3962                 ;;
3963             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3964             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3965             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3966             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3967             -msoft-float)   echo --float_support=vfplib       ;;
3968             -O[0-3]|-mf=*)  echo $flag                        ;;
3969             -g)             echo -g -mn                       ;;
3970             -pds=*)         echo $flag                        ;;
3971             -D*|-I*)        echo $flag                        ;;
3972             --gcc|--abi=*)  echo $flag                        ;;
3973             -me)            echo $flag                        ;;
3974         esac
3975     done
3976 }
3977
3978 probe_cc(){
3979     pfx=$1
3980     _cc=$2
3981     first=$3
3982
3983     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3984     unset _ld_o _ldflags _ld_lib _ld_path
3985     unset _depflags _DEPCMD _DEPFLAGS
3986     _flags_filter=echo
3987
3988     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3989         true # no-op to avoid reading stdin in following checks
3990     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3991         _type=llvm_gcc
3992         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3993         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3994         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3995         _cflags_speed='-O3'
3996         _cflags_size='-Os'
3997     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3998         _type=gcc
3999         gcc_version=$($_cc --version | head -n1)
4000         gcc_basever=$($_cc -dumpversion)
4001         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4002         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4003         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4004         case $gcc_basever in
4005             2) ;;
4006             2.*) ;;
4007             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4008         esac
4009         if [ "$first" = true ]; then
4010             case $gcc_basever in
4011                 4.2*)
4012                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4013             esac
4014         fi
4015         _cflags_speed='-O3'
4016         _cflags_size='-Os'
4017     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4018         _type=icc
4019         _ident=$($_cc --version | head -n1)
4020         _depflags='-MMD'
4021         _cflags_speed='-O3'
4022         _cflags_size='-Os'
4023         _cflags_noopt='-O1'
4024         _flags_filter=icc_flags
4025     elif $_cc -v 2>&1 | grep -q xlc; then
4026         _type=xlc
4027         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4028         _cflags_speed='-O5'
4029         _cflags_size='-O5 -qcompact'
4030     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4031         _type=ccc
4032         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4033         _DEPFLAGS='-M'
4034         _cflags_speed='-fast'
4035         _cflags_size='-O1'
4036         _flags_filter=ccc_flags
4037     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4038         test -d "$sysroot" || die "No valid sysroot specified."
4039         _type=armcc
4040         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4041         armcc_conf="$PWD/armcc.conf"
4042         $_cc --arm_linux_configure                 \
4043              --arm_linux_config_file="$armcc_conf" \
4044              --configure_sysroot="$sysroot"        \
4045              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4046              die "Error creating armcc configuration file."
4047         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4048         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4049         as_default="${cross_prefix}gcc"
4050         _depflags='-MMD'
4051         _cflags_speed='-O3'
4052         _cflags_size='-Os'
4053     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4054         _type=tms470
4055         _ident=$($_cc -version | head -n1 | tr -s ' ')
4056         _flags='--gcc --abi=eabi -me'
4057         _cc_e='-ppl -fe=$@'
4058         _cc_o='-fe=$@'
4059         _depflags='-ppa -ppd=$(@:.o=.d)'
4060         _cflags_speed='-O3 -mf=5'
4061         _cflags_size='-O3 -mf=2'
4062         _flags_filter=tms470_flags
4063     elif $_cc -v 2>&1 | grep -q clang; then
4064         _type=clang
4065         _ident=$($_cc --version 2>/dev/null | head -n1)
4066         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4067         _cflags_speed='-O3'
4068         _cflags_size='-Oz'
4069     elif $_cc -V 2>&1 | grep -q Sun; then
4070         _type=suncc
4071         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4072         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4073         _DEPFLAGS='-xM1 -xc99'
4074         _ldflags='-std=c99'
4075         _cflags_speed='-O5'
4076         _cflags_size='-O5 -xspace'
4077         _flags_filter=suncc_flags
4078     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4079         _type=pathscale
4080         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4081         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4082         _cflags_speed='-O2'
4083         _cflags_size='-Os'
4084         _flags_filter='filter_out -Wdisabled-optimization'
4085     elif $_cc -v 2>&1 | grep -q Open64; then
4086         _type=open64
4087         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4088         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4089         _cflags_speed='-O2'
4090         _cflags_size='-Os'
4091         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4092     elif $_cc -V 2>&1 | grep -q Portland; then
4093         _type=pgi
4094         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4095         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4096         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4097         _cflags_size="-O2 -Munroll=c: