Merge commit '8495d84f0101464b15517860db33e8605586d87e'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-raise-major     increase major version numbers in sonames [no]
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --enable-avisynth        enable reading of AviSynth script files [no]
204   --disable-bzlib          disable bzlib [autodetect]
205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
206   --enable-frei0r          enable frei0r video filtering [no]
207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
208                            if openssl, librtmp or gmp is not used [no]
209   --enable-gmp             enable gmp, needed for rtmp(t)e support
210                            if openssl or librtmp is not used [no]
211   --enable-gnutls          enable gnutls, needed for https support
212                            if openssl is not used [no]
213   --disable-iconv          disable iconv [autodetect]
214   --enable-jni             enable JNI support [no]
215   --enable-ladspa          enable LADSPA audio filtering [no]
216   --enable-libass          enable libass subtitles rendering,
217                            needed for subtitles and ass filter [no]
218   --enable-libbluray       enable BluRay reading using libbluray [no]
219   --enable-libbs2b         enable bs2b DSP library [no]
220   --enable-libcaca         enable textual display using libcaca [no]
221   --enable-libcelt         enable CELT decoding via libcelt [no]
222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
224                            and libraw1394 [no]
225   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
226   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
227   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
228   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
229   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
230   --enable-libgme          enable Game Music Emu via libgme [no]
231   --enable-libgsm          enable GSM de/encoding via libgsm [no]
232   --enable-libiec61883     enable iec61883 via libiec61883 [no]
233   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
234   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
235   --enable-libmodplug      enable ModPlug via libmodplug [no]
236   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
237   --enable-libnut          enable NUT (de)muxing via libnut,
238                            native (de)muxer exists [no]
239   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
240   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
241   --enable-libopencv       enable video filtering via libopencv [no]
242   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
243   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
244   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
245   --enable-libopus         enable Opus de/encoding via libopus [no]
246   --enable-libpulse        enable Pulseaudio input via libpulse [no]
247   --enable-librubberband   enable rubberband needed for rubberband filter [no]
248   --enable-librtmp         enable RTMP[E] support via librtmp [no]
249   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
250   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
251   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
252   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
253   --enable-libsoxr         enable Include libsoxr resampling [no]
254   --enable-libspeex        enable Speex de/encoding via libspeex [no]
255   --enable-libssh          enable SFTP protocol via libssh [no]
256   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
257   --enable-libtheora       enable Theora encoding via libtheora [no]
258   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
259   --enable-libv4l2         enable libv4l2/v4l-utils [no]
260   --enable-libvidstab      enable video stabilization using vid.stab [no]
261   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
262   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
263                            native implementation exists [no]
264   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
265   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
266   --enable-libwebp         enable WebP encoding via libwebp [no]
267   --enable-libx264         enable H.264 encoding via x264 [no]
268   --enable-libx265         enable HEVC encoding via x265 [no]
269   --enable-libxavs         enable AVS encoding via xavs [no]
270   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
271   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
272   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
273   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
274   --enable-libxvid         enable Xvid encoding via xvidcore,
275                            native MPEG-4/Xvid encoder exists [no]
276   --enable-libzimg         enable z.lib, needed for zscale filter [no]
277   --enable-libzmq          enable message passing via libzmq [no]
278   --enable-libzvbi         enable teletext support via libzvbi [no]
279   --disable-lzma           disable lzma [autodetect]
280   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
281   --enable-mediacodec      enable Android MediaCodec support [no]
282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
283   --enable-openal          enable OpenAL 1.1 capture support [no]
284   --enable-opencl          enable OpenCL code
285   --enable-opengl          enable OpenGL rendering [no]
286   --enable-openssl         enable openssl, needed for https support
287                            if gnutls is not used [no]
288   --disable-schannel       disable SChannel SSP, needed for TLS support on
289                            Windows if openssl and gnutls are not used [autodetect]
290   --disable-sdl2           disable sdl2 [autodetect]
291   --disable-securetransport disable Secure Transport, needed for TLS support
292                            on OSX if openssl and gnutls are not used [autodetect]
293   --enable-x11grab         enable X11 grabbing (legacy) [no]
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   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
376   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
377
378 Optimization options (experts only):
379   --disable-asm            disable all assembly optimizations
380   --disable-altivec        disable AltiVec optimizations
381   --disable-vsx            disable VSX optimizations
382   --disable-power8         disable POWER8 optimizations
383   --disable-amd3dnow       disable 3DNow! optimizations
384   --disable-amd3dnowext    disable 3DNow! extended optimizations
385   --disable-mmx            disable MMX optimizations
386   --disable-mmxext         disable MMXEXT optimizations
387   --disable-sse            disable SSE optimizations
388   --disable-sse2           disable SSE2 optimizations
389   --disable-sse3           disable SSE3 optimizations
390   --disable-ssse3          disable SSSE3 optimizations
391   --disable-sse4           disable SSE4 optimizations
392   --disable-sse42          disable SSE4.2 optimizations
393   --disable-avx            disable AVX optimizations
394   --disable-xop            disable XOP optimizations
395   --disable-fma3           disable FMA3 optimizations
396   --disable-fma4           disable FMA4 optimizations
397   --disable-avx2           disable AVX2 optimizations
398   --disable-aesni          disable AESNI optimizations
399   --disable-armv5te        disable armv5te optimizations
400   --disable-armv6          disable armv6 optimizations
401   --disable-armv6t2        disable armv6t2 optimizations
402   --disable-vfp            disable VFP optimizations
403   --disable-neon           disable NEON optimizations
404   --disable-inline-asm     disable use of inline assembly
405   --disable-yasm           disable use of nasm/yasm assembly
406   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
407   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
408   --disable-msa            disable MSA optimizations
409   --disable-mipsfpu        disable floating point MIPS optimizations
410   --disable-mmi            disable Loongson SIMD optimizations
411   --disable-fast-unaligned consider unaligned accesses slow
412
413 Developer options (useful when working on FFmpeg itself):
414   --disable-debug          disable debugging symbols
415   --enable-debug=LEVEL     set the debug level [$debuglevel]
416   --disable-optimizations  disable compiler optimizations
417   --enable-extra-warnings  enable more compiler warnings
418   --disable-stripping      disable stripping of executables and shared libraries
419   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
420                            2 causes a slowdown at runtime.
421   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
422   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
423                            leaks and errors, using the specified valgrind binary.
424                            Cannot be combined with --target-exec
425   --enable-ftrapv          Trap arithmetic overflows
426   --samples=PATH           location of test samples for FATE, if not set use
427                            \$FATE_SAMPLES at make invocation time.
428   --enable-neon-clobber-test check NEON registers for clobbering (should be
429                            used only for debugging purposes)
430   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
431                            should be used only for debugging purposes)
432   --enable-random          randomly enable/disable components
433   --disable-random
434   --enable-random=LIST     randomly enable/disable specific components or
435   --disable-random=LIST    component groups. LIST is a comma-separated list
436                            of NAME[:PROB] entries where NAME is a component
437                            (group) and PROB the probability associated with
438                            NAME (default 0.5).
439   --random-seed=VALUE      seed value for --enable/disable-random
440   --disable-valgrind-backtrace do not print a backtrace under Valgrind
441                            (only applies to --disable-optimizations builds)
442
443 NOTE: Object files are built at the place where configure is launched.
444 EOF
445   exit 0
446 }
447
448 quotes='""'
449 if test -t 1 && which tput >/dev/null 2>&1; then
450     ncolors=$(tput colors)
451     if test -n "$ncolors" && test $ncolors -ge 8; then
452         bold_color=$(tput bold)
453         warn_color=$(tput setaf 3)
454         error_color=$(tput setaf 1)
455         reset_color=$(tput sgr0)
456     fi
457     # 72 used instead of 80 since that's the default of pr
458     ncols=$(tput cols)
459 fi
460 : ${ncols:=72}
461
462 log(){
463     echo "$@" >> $logfile
464 }
465
466 log_file(){
467     log BEGIN $1
468     pr -n -t $1 >> $logfile
469     log END $1
470 }
471
472 warn(){
473     log "WARNING: $*"
474     WARNINGS="${WARNINGS}WARNING: $*\n"
475 }
476
477 die(){
478     log "$@"
479     echo "$error_color$bold_color$@$reset_color"
480     cat <<EOF
481
482 If you think configure made a mistake, make sure you are using the latest
483 version from Git.  If the latest version fails, report the problem to the
484 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
485 EOF
486     if disabled logging; then
487         cat <<EOF
488 Rerun configure with logging enabled (do not use --disable-logging), and
489 include the log this produces with your report.
490 EOF
491     else
492         cat <<EOF
493 Include the log file "$logfile" produced by configure as this will help
494 solve the problem.
495 EOF
496     fi
497     exit 1
498 }
499
500 # Avoid locale weirdness, besides we really just want to translate ASCII.
501 toupper(){
502     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
503 }
504
505 tolower(){
506     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
507 }
508
509 c_escape(){
510     echo "$*" | sed 's/["\\]/\\\0/g'
511 }
512
513 sh_quote(){
514     v=$(echo "$1" | sed "s/'/'\\\\''/g")
515     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
516     echo "$v"
517 }
518
519 cleanws(){
520     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
521 }
522
523 filter(){
524     pat=$1
525     shift
526     for v; do
527         eval "case $v in $pat) echo $v ;; esac"
528     done
529 }
530
531 filter_out(){
532     pat=$1
533     shift
534     for v; do
535         eval "case $v in $pat) ;; *) echo $v ;; esac"
536     done
537 }
538
539 map(){
540     m=$1
541     shift
542     for v; do eval $m; done
543 }
544
545 add_suffix(){
546     suffix=$1
547     shift
548     for v; do echo ${v}${suffix}; done
549 }
550
551 set_all(){
552     value=$1
553     shift
554     for var in $*; do
555         eval $var=$value
556     done
557 }
558
559 set_weak(){
560     value=$1
561     shift
562     for var; do
563         eval : \${$var:=$value}
564     done
565 }
566
567 sanitize_var_name(){
568     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
569 }
570
571 set_safe(){
572     var=$1
573     shift
574     eval $(sanitize_var_name "$var")='$*'
575 }
576
577 get_safe(){
578     eval echo \$$(sanitize_var_name "$1")
579 }
580
581 pushvar(){
582     for pvar in $*; do
583         eval level=\${${pvar}_level:=0}
584         eval ${pvar}_${level}="\$$pvar"
585         eval ${pvar}_level=$(($level+1))
586     done
587 }
588
589 popvar(){
590     for pvar in $*; do
591         eval level=\${${pvar}_level:-0}
592         test $level = 0 && continue
593         eval level=$(($level-1))
594         eval $pvar="\${${pvar}_${level}}"
595         eval ${pvar}_level=$level
596         eval unset ${pvar}_${level}
597     done
598 }
599
600 request(){
601     for var in $*; do
602         eval ${var}_requested=yes
603         eval $var=
604     done
605 }
606
607 enable(){
608     set_all yes $*
609 }
610
611 disable(){
612     set_all no $*
613 }
614
615 enable_weak(){
616     set_weak yes $*
617 }
618
619 disable_weak(){
620     set_weak no $*
621 }
622
623 enable_safe(){
624     for var; do
625         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
626     done
627 }
628
629 disable_safe(){
630     for var; do
631         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
632     done
633 }
634
635 do_enable_deep(){
636     for var; do
637         enabled $var && continue
638         eval sel="\$${var}_select"
639         eval sgs="\$${var}_suggest"
640         pushvar var sgs
641         enable_deep $sel
642         popvar sgs
643         enable_deep_weak $sgs
644         popvar var
645     done
646 }
647
648 enable_deep(){
649     do_enable_deep $*
650     enable $*
651 }
652
653 enable_deep_weak(){
654     for var; do
655         disabled $var && continue
656         pushvar var
657         do_enable_deep $var
658         popvar var
659         enable_weak $var
660     done
661 }
662
663 requested(){
664     test "${1#!}" = "$1" && op='=' || op=!=
665     eval test "x\$${1#!}_requested" $op "xyes"
666 }
667
668 enabled(){
669     test "${1#!}" = "$1" && op='=' || op=!=
670     eval test "x\$${1#!}" $op "xyes"
671 }
672
673 disabled(){
674     test "${1#!}" = "$1" && op='=' || op=!=
675     eval test "x\$${1#!}" $op "xno"
676 }
677
678 enabled_all(){
679     for opt; do
680         enabled $opt || return 1
681     done
682 }
683
684 disabled_all(){
685     for opt; do
686         disabled $opt || return 1
687     done
688 }
689
690 enabled_any(){
691     for opt; do
692         enabled $opt && return 0
693     done
694 }
695
696 disabled_any(){
697     for opt; do
698         disabled $opt && return 0
699     done
700     return 1
701 }
702
703 set_default(){
704     for opt; do
705         eval : \${$opt:=\$${opt}_default}
706     done
707 }
708
709 is_in(){
710     value=$1
711     shift
712     for var in $*; do
713         [ $var = $value ] && return 0
714     done
715     return 1
716 }
717
718 do_check_deps(){
719     for cfg; do
720         cfg="${cfg#!}"
721         enabled ${cfg}_checking && die "Circular dependency for $cfg."
722         disabled ${cfg}_checking && continue
723         enable ${cfg}_checking
724         append allopts $cfg
725
726         eval dep_all="\$${cfg}_deps"
727         eval dep_any="\$${cfg}_deps_any"
728         eval dep_sel="\$${cfg}_select"
729         eval dep_sgs="\$${cfg}_suggest"
730         eval dep_ifa="\$${cfg}_if"
731         eval dep_ifn="\$${cfg}_if_any"
732
733         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
734         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
735         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
736
737         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
738         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
739         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
740         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
741         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
742
743         if enabled $cfg; then
744             enable_deep $dep_sel
745             enable_deep_weak $dep_sgs
746         fi
747
748         disable ${cfg}_checking
749     done
750 }
751
752 check_deps(){
753     unset allopts
754
755     do_check_deps "$@"
756
757     for cfg in $allopts; do
758         enabled $cfg || continue
759         eval dep_extralibs="\$${cfg}_extralibs"
760         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
761     done
762 }
763
764 print_config(){
765     pfx=$1
766     files=$2
767     shift 2
768     map 'eval echo "$v \${$v:-no}"' "$@" |
769     awk "BEGIN { split(\"$files\", files) }
770         {
771             c = \"$pfx\" toupper(\$1);
772             v = \$2;
773             sub(/yes/, 1, v);
774             sub(/no/,  0, v);
775             for (f in files) {
776                 file = files[f];
777                 if (file ~ /\\.h\$/) {
778                     printf(\"#define %s %d\\n\", c, v) >>file;
779                 } else if (file ~ /\\.asm\$/) {
780                     printf(\"%%define %s %d\\n\", c, v) >>file;
781                 } else if (file ~ /\\.mak\$/) {
782                     n = -v ? \"\" : \"!\";
783                     printf(\"%s%s=yes\\n\", n, c) >>file;
784                 } else if (file ~ /\\.texi\$/) {
785                     pre = -v ? \"\" : \"@c \";
786                     yesno = \$2;
787                     c2 = tolower(c);
788                     gsub(/_/, \"-\", c2);
789                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
790                 }
791             }
792         }"
793 }
794
795 print_enabled(){
796     suf=$1
797     shift
798     for v; do
799         enabled $v && printf "%s\n" ${v%$suf}
800     done
801 }
802
803 append(){
804     var=$1
805     shift
806     eval "$var=\"\$$var $*\""
807 }
808
809 prepend(){
810     var=$1
811     shift
812     eval "$var=\"$* \$$var\""
813 }
814
815 unique(){
816     var=$1
817     uniq_list=""
818     for tok in $(eval echo \$$var); do
819         uniq_list="$(filter_out $tok $uniq_list) $tok"
820     done
821     eval "$var=\"${uniq_list}\""
822 }
823
824 add_cppflags(){
825     append CPPFLAGS "$@"
826 }
827
828 add_cflags(){
829     append CFLAGS $($cflags_filter "$@")
830 }
831
832 add_cxxflags(){
833     append CXXFLAGS $($cflags_filter "$@")
834 }
835
836 add_asflags(){
837     append ASFLAGS $($asflags_filter "$@")
838 }
839
840 add_objcflags(){
841     append OBJCFLAGS $($objcflags_filter "$@")
842 }
843
844 add_ldflags(){
845     append LDFLAGS $($ldflags_filter "$@")
846 }
847
848 add_ldexeflags(){
849     append LDEXEFLAGS $($ldflags_filter "$@")
850 }
851
852 add_ldlibflags(){
853     append LDLIBFLAGS $($ldflags_filter "$@")
854 }
855
856 add_stripflags(){
857     append ASMSTRIPFLAGS "$@"
858 }
859
860 add_extralibs(){
861     prepend extralibs $($ldflags_filter "$@")
862 }
863
864 add_host_cppflags(){
865     append host_cppflags "$@"
866 }
867
868 add_host_cflags(){
869     append host_cflags $($host_cflags_filter "$@")
870 }
871
872 add_host_ldflags(){
873     append host_ldflags $($host_ldflags_filter "$@")
874 }
875
876 add_compat(){
877     append compat_objs $1
878     shift
879     map 'add_cppflags -D$v' "$@"
880 }
881
882 check_cmd(){
883     log "$@"
884     "$@" >> $logfile 2>&1
885 }
886
887 check_stat(){
888     log check_stat "$@"
889     stat "$1" >> $logfile 2>&1
890 }
891
892 cc_o(){
893     eval printf '%s\\n' $CC_O
894 }
895
896 cc_e(){
897     eval printf '%s\\n' $CC_E
898 }
899
900 check_cc(){
901     log check_cc "$@"
902     cat > $TMPC
903     log_file $TMPC
904     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
905 }
906
907 check_cxx(){
908     log check_cxx "$@"
909     cat > $TMPCPP
910     log_file $TMPCPP
911     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
912 }
913
914 check_objcc(){
915     log check_objcc "$@"
916     cat > $TMPM
917     log_file $TMPM
918     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
919 }
920
921 check_cpp(){
922     log check_cpp "$@"
923     cat > $TMPC
924     log_file $TMPC
925     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
926 }
927
928 as_o(){
929     eval printf '%s\\n' $AS_O
930 }
931
932 check_as(){
933     log check_as "$@"
934     cat > $TMPS
935     log_file $TMPS
936     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
937 }
938
939 check_inline_asm(){
940     log check_inline_asm "$@"
941     name="$1"
942     code="$2"
943     shift 2
944     disable $name
945     check_cc "$@" <<EOF && enable $name
946 void foo(void){ __asm__ volatile($code); }
947 EOF
948 }
949
950 check_inline_asm_flags(){
951     log check_inline_asm_flags "$@"
952     name="$1"
953     code="$2"
954     flags=''
955     shift 2
956     while [ "$1" != "" ]; do
957       append flags $1
958       shift
959     done;
960     disable $name
961     cat > $TMPC <<EOF
962 void foo(void){ __asm__ volatile($code); }
963 EOF
964     log_file $TMPC
965     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
966     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
967 }
968
969 check_insn(){
970     log check_insn "$@"
971     check_inline_asm ${1}_inline "\"$2\""
972     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
973 }
974
975 check_yasm(){
976     log check_yasm "$@"
977     echo "$1" > $TMPS
978     log_file $TMPS
979     shift 1
980     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
981 }
982
983 ld_o(){
984     eval printf '%s\\n' $LD_O
985 }
986
987 check_ld(){
988     log check_ld "$@"
989     type=$1
990     shift 1
991     flags=$(filter_out '-l*|*.so' $@)
992     libs=$(filter '-l*|*.so' $@)
993     check_$type $($cflags_filter $flags) || return
994     flags=$($ldflags_filter $flags)
995     libs=$($ldflags_filter $libs)
996     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
997 }
998
999 print_include(){
1000     hdr=$1
1001     test "${hdr%.h}" = "${hdr}" &&
1002         echo "#include $hdr"    ||
1003         echo "#include <$hdr>"
1004 }
1005
1006 check_code(){
1007     log check_code "$@"
1008     check=$1
1009     headers=$2
1010     code=$3
1011     shift 3
1012     {
1013         for hdr in $headers; do
1014             print_include $hdr
1015         done
1016         echo "int main(void) { $code; return 0; }"
1017     } | check_$check "$@"
1018 }
1019
1020 check_cppflags(){
1021     log check_cppflags "$@"
1022     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1023 int x;
1024 EOF
1025 }
1026
1027 test_cflags(){
1028     log test_cflags "$@"
1029     set -- $($cflags_filter "$@")
1030     check_cc "$@" <<EOF
1031 int x;
1032 EOF
1033 }
1034
1035 check_cflags(){
1036     log check_cflags "$@"
1037     test_cflags "$@" && add_cflags "$@"
1038 }
1039
1040 check_cxxflags(){
1041     log check_cxxflags "$@"
1042     set -- $($cflags_filter "$@")
1043     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1044 int x;
1045 EOF
1046 }
1047
1048 test_objcflags(){
1049     log test_cflags "$@"
1050     set -- $($cflags_filter "$@")
1051     check_objcc "$@" <<EOF
1052 int x;
1053 EOF
1054 }
1055
1056 check_objcflags(){
1057     log check_cflags "$@"
1058     test_objcflags "$@" && add_objcflags "$@"
1059 }
1060
1061 test_ldflags(){
1062     log test_ldflags "$@"
1063     check_ld "cc" "$@" <<EOF
1064 int main(void){ return 0; }
1065 EOF
1066 }
1067
1068 check_ldflags(){
1069     log check_ldflags "$@"
1070     test_ldflags "$@" && add_ldflags "$@"
1071 }
1072
1073 test_stripflags(){
1074     log test_stripflags "$@"
1075     # call check_cc to get a fresh TMPO
1076     check_cc <<EOF
1077 int main(void) { return 0; }
1078 EOF
1079     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1080 }
1081
1082 check_stripflags(){
1083     log check_stripflags "$@"
1084     test_stripflags "$@" && add_stripflags "$@"
1085 }
1086
1087 check_header(){
1088     log check_header "$@"
1089     header=$1
1090     shift
1091     disable_safe $header
1092     check_cpp "$@" <<EOF && enable_safe $header
1093 #include <$header>
1094 int x;
1095 EOF
1096 }
1097
1098 check_header_objcc(){
1099     log check_header_objcc "$@"
1100     rm -f -- "$TMPO"
1101     header=$1
1102     shift
1103     disable_safe $header
1104     {
1105        echo "#include <$header>"
1106        echo "int main(void) { return 0; }"
1107     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1108 }
1109
1110 check_func(){
1111     log check_func "$@"
1112     func=$1
1113     shift
1114     disable $func
1115     check_ld "cc" "$@" <<EOF && enable $func
1116 extern int $func();
1117 int main(void){ $func(); }
1118 EOF
1119 }
1120
1121 check_complexfunc(){
1122     log check_complexfunc "$@"
1123     func=$1
1124     narg=$2
1125     shift 2
1126     test $narg = 2 && args="f, g" || args="f * I"
1127     disable $func
1128     check_ld "cc" "$@" <<EOF && enable $func
1129 #include <complex.h>
1130 #include <math.h>
1131 float foo(complex float f, complex float g) { return $func($args); }
1132 int main(void){ return (int) foo; }
1133 EOF
1134 }
1135
1136 check_mathfunc(){
1137     log check_mathfunc "$@"
1138     func=$1
1139     narg=$2
1140     shift 2
1141     test $narg = 2 && args="f, g" || args="f"
1142     disable $func
1143     check_ld "cc" "$@" <<EOF && enable $func
1144 #include <math.h>
1145 float foo(float f, float g) { return $func($args); }
1146 int main(void){ return (int) foo; }
1147 EOF
1148 }
1149
1150 check_func_headers(){
1151     log check_func_headers "$@"
1152     headers=$1
1153     funcs=$2
1154     shift 2
1155     {
1156         for hdr in $headers; do
1157             print_include $hdr
1158         done
1159         echo "#include <stdint.h>"
1160         for func in $funcs; do
1161             echo "long check_$func(void) { return (long) $func; }"
1162         done
1163         echo "int main(void) { int ret = 0;"
1164         # LTO could optimize out the test functions without this
1165         for func in $funcs; do
1166             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1167         done
1168         echo "return ret; }"
1169     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1170 }
1171
1172 check_class_headers_cpp(){
1173     log check_class_headers_cpp "$@"
1174     headers=$1
1175     classes=$2
1176     shift 2
1177     {
1178         for hdr in $headers; do
1179             echo "#include <$hdr>"
1180         done
1181         echo "int main(void) { "
1182         i=1
1183         for class in $classes; do
1184             echo "$class obj$i;"
1185             i=$(expr $i + 1)
1186         done
1187         echo "return 0; }"
1188     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1189 }
1190
1191 check_cpp_condition(){
1192     log check_cpp_condition "$@"
1193     header=$1
1194     condition=$2
1195     shift 2
1196     check_cpp "$@" <<EOF
1197 #include <$header>
1198 #if !($condition)
1199 #error "unsatisfied condition: $condition"
1200 #endif
1201 EOF
1202 }
1203
1204 test_cflags_cc(){
1205     log test_cflags_cc "$@"
1206     flags=$1
1207     header=$2
1208     condition=$3
1209     shift 3
1210     set -- $($cflags_filter "$flags")
1211     check_cc "$@" <<EOF
1212 #include <$header>
1213 #if !($condition)
1214 #error "unsatisfied condition: $condition"
1215 #endif
1216 EOF
1217 }
1218
1219 check_lib(){
1220     log check_lib "$@"
1221     header="$1"
1222     func="$2"
1223     shift 2
1224     check_header $header && check_func $func "$@" && add_extralibs "$@"
1225 }
1226
1227 check_lib2(){
1228     log check_lib2 "$@"
1229     headers="$1"
1230     funcs="$2"
1231     shift 2
1232     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1233 }
1234
1235 check_lib_cpp(){
1236     log check_lib_cpp "$@"
1237     headers="$1"
1238     classes="$2"
1239     shift 2
1240     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1241 }
1242
1243 check_pkg_config(){
1244     log check_pkg_config "$@"
1245     pkgandversion="$1"
1246     pkg="${1%% *}"
1247     headers="$2"
1248     funcs="$3"
1249     shift 3
1250     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1251     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1252     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1253     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1254         set_safe "${pkg}_cflags" $pkg_cflags   &&
1255         set_safe "${pkg}_libs"   $pkg_libs
1256 }
1257
1258 check_exec(){
1259     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1260 }
1261
1262 check_exec_crash(){
1263     code=$(cat)
1264
1265     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1266     # are safe but may not be available everywhere.  Thus we use
1267     # raise(SIGTERM) instead.  The check is run in a subshell so we
1268     # can redirect the "Terminated" message from the shell.  SIGBUS
1269     # is not defined by standard C so it is used conditionally.
1270
1271     (check_exec "$@") >> $logfile 2>&1 <<EOF
1272 #include <signal.h>
1273 static void sighandler(int sig){
1274     raise(SIGTERM);
1275 }
1276 int foo(void){
1277     $code
1278 }
1279 int (*func_ptr)(void) = foo;
1280 int main(void){
1281     signal(SIGILL, sighandler);
1282     signal(SIGFPE, sighandler);
1283     signal(SIGSEGV, sighandler);
1284 #ifdef SIGBUS
1285     signal(SIGBUS, sighandler);
1286 #endif
1287     return func_ptr();
1288 }
1289 EOF
1290 }
1291
1292 check_type(){
1293     log check_type "$@"
1294     headers=$1
1295     type=$2
1296     shift 2
1297     disable_safe "$type"
1298     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1299 }
1300
1301 check_struct(){
1302     log check_struct "$@"
1303     headers=$1
1304     struct=$2
1305     member=$3
1306     shift 3
1307     disable_safe "${struct}_${member}"
1308     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1309         enable_safe "${struct}_${member}"
1310 }
1311
1312 check_builtin(){
1313     log check_builtin "$@"
1314     name=$1
1315     headers=$2
1316     builtin=$3
1317     shift 3
1318     disable "$name"
1319     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1320 }
1321
1322 check_compile_assert(){
1323     log check_compile_assert "$@"
1324     name=$1
1325     headers=$2
1326     condition=$3
1327     shift 3
1328     disable "$name"
1329     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1330 }
1331
1332 require(){
1333     name="$1"
1334     header="$2"
1335     func="$3"
1336     shift 3
1337     check_lib $header $func "$@" || die "ERROR: $name not found"
1338 }
1339
1340 require2(){
1341     name="$1"
1342     headers="$2"
1343     func="$3"
1344     shift 3
1345     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1346 }
1347
1348 require_cpp(){
1349     name="$1"
1350     headers="$2"
1351     classes="$3"
1352     shift 3
1353     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1354 }
1355
1356 use_pkg_config(){
1357     pkg="$1"
1358     check_pkg_config "$@" || return 1
1359     add_cflags    $(get_safe "${pkg}_cflags")
1360     add_extralibs $(get_safe "${pkg}_libs")
1361 }
1362
1363 require_pkg_config(){
1364     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1365 }
1366
1367 require_libfreetype(){
1368     log require_libfreetype "$@"
1369     pkg="freetype2"
1370     check_cmd $pkg_config --exists --print-errors $pkg \
1371       || die "ERROR: $pkg not found"
1372     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1373     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1374     {
1375         echo "#include <ft2build.h>"
1376         echo "#include FT_FREETYPE_H"
1377         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1378         echo "int main(void) { return 0; }"
1379     } | check_ld "cc" $pkg_cflags $pkg_libs \
1380       && set_safe "${pkg}_cflags" $pkg_cflags \
1381       && set_safe "${pkg}_libs"   $pkg_libs \
1382       || die "ERROR: $pkg not found"
1383     add_cflags    $(get_safe "${pkg}_cflags")
1384     add_extralibs $(get_safe "${pkg}_libs")
1385 }
1386
1387 hostcc_e(){
1388     eval printf '%s\\n' $HOSTCC_E
1389 }
1390
1391 hostcc_o(){
1392     eval printf '%s\\n' $HOSTCC_O
1393 }
1394
1395 check_host_cc(){
1396     log check_host_cc "$@"
1397     cat > $TMPC
1398     log_file $TMPC
1399     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1400 }
1401
1402 check_host_cpp(){
1403     log check_host_cpp "$@"
1404     cat > $TMPC
1405     log_file $TMPC
1406     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1407 }
1408
1409 check_host_cppflags(){
1410     log check_host_cppflags "$@"
1411     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1412 int x;
1413 EOF
1414 }
1415
1416 check_host_cflags(){
1417     log check_host_cflags "$@"
1418     set -- $($host_cflags_filter "$@")
1419     check_host_cc "$@" <<EOF && append host_cflags "$@"
1420 int x;
1421 EOF
1422 }
1423
1424 check_host_cpp_condition(){
1425     log check_host_cpp_condition "$@"
1426     header=$1
1427     condition=$2
1428     shift 2
1429     check_host_cpp "$@" <<EOF
1430 #include <$header>
1431 #if !($condition)
1432 #error "unsatisfied condition: $condition"
1433 #endif
1434 EOF
1435 }
1436
1437 cp_if_changed(){
1438     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1439     mkdir -p "$(dirname $2)"
1440     $cp_f "$1" "$2"
1441 }
1442
1443 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1444 # system-dependent things.
1445
1446 AVCODEC_COMPONENTS="
1447     bsfs
1448     decoders
1449     encoders
1450     hwaccels
1451     parsers
1452 "
1453
1454 AVDEVICE_COMPONENTS="
1455     indevs
1456     outdevs
1457 "
1458 AVFILTER_COMPONENTS="
1459     filters
1460 "
1461 AVFORMAT_COMPONENTS="
1462     demuxers
1463     muxers
1464     protocols
1465 "
1466
1467 AVRESAMPLE_COMPONENTS=""
1468 AVUTIL_COMPONENTS=""
1469
1470 COMPONENT_LIST="
1471     $AVCODEC_COMPONENTS
1472     $AVDEVICE_COMPONENTS
1473     $AVFILTER_COMPONENTS
1474     $AVFORMAT_COMPONENTS
1475     $AVRESAMPLE_COMPONENTS
1476     $AVUTIL_COMPONENTS
1477 "
1478
1479 EXAMPLE_LIST="
1480     avio_dir_cmd_example
1481     avio_reading_example
1482     decoding_encoding_example
1483     demuxing_decoding_example
1484     extract_mvs_example
1485     filter_audio_example
1486     filtering_audio_example
1487     filtering_video_example
1488     http_multiclient_example
1489     metadata_example
1490     muxing_example
1491     qsvdec_example
1492     remuxing_example
1493     resampling_audio_example
1494     scaling_video_example
1495     transcode_aac_example
1496     transcoding_example
1497 "
1498 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1499     bzlib
1500     iconv
1501     libxcb
1502     libxcb_shm
1503     libxcb_shape
1504     libxcb_xfixes
1505     lzma
1506     schannel
1507     sdl
1508     sdl2
1509     securetransport
1510     xlib
1511     zlib
1512 "
1513
1514 EXTERNAL_LIBRARY_GPL_LIST="
1515     frei0r
1516     libcdio
1517     librubberband
1518     libvidstab
1519     libx264
1520     libx265
1521     libxavs
1522     libxvid
1523     x11grab
1524 "
1525
1526 EXTERNAL_LIBRARY_NONFREE_LIST="
1527     libfdk_aac
1528     openssl
1529 "
1530
1531 EXTERNAL_LIBRARY_VERSION3_LIST="
1532     gmp
1533     libopencore_amrnb
1534     libopencore_amrwb
1535     libvo_amrwbenc
1536 "
1537
1538 EXTERNAL_LIBRARY_GPLV3_LIST="
1539     libsmbclient
1540 "
1541
1542 EXTERNAL_LIBRARY_LIST="
1543     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1544     $EXTERNAL_LIBRARY_GPL_LIST
1545     $EXTERNAL_LIBRARY_NONFREE_LIST
1546     $EXTERNAL_LIBRARY_VERSION3_LIST
1547     $EXTERNAL_LIBRARY_GPLV3_LIST
1548     avisynth
1549     chromaprint
1550     crystalhd
1551     decklink
1552     gcrypt
1553     gnutls
1554     jni
1555     ladspa
1556     libass
1557     libbluray
1558     libbs2b
1559     libcaca
1560     libcelt
1561     libdc1394
1562     libflite
1563     libfontconfig
1564     libfreetype
1565     libfribidi
1566     libgme
1567     libgsm
1568     libiec61883
1569     libilbc
1570     libkvazaar
1571     libmodplug
1572     libmp3lame
1573     libnut
1574     libopencv
1575     libopenh264
1576     libopenjpeg
1577     libopenmpt
1578     libopus
1579     libpulse
1580     librtmp
1581     libschroedinger
1582     libshine
1583     libsmbclient
1584     libsnappy
1585     libsoxr
1586     libspeex
1587     libssh
1588     libtesseract
1589     libtheora
1590     libtwolame
1591     libv4l2
1592     libvorbis
1593     libvpx
1594     libwavpack
1595     libwebp
1596     libzimg
1597     libzmq
1598     libzvbi
1599     mediacodec
1600     netcdf
1601     openal
1602     opencl
1603     opengl
1604     videotoolbox
1605 "
1606 HWACCEL_AUTODETECT_LIBRARY_LIST="
1607     audiotoolbox
1608     cuda
1609     cuvid
1610     d3d11va
1611     dxva2
1612     nvenc
1613     vaapi
1614     vda
1615     vdpau
1616     videotoolbox_hwaccel
1617     xvmc
1618 "
1619
1620 HWACCEL_LIBRARY_NONFREE_LIST="
1621     libnpp
1622 "
1623
1624 HWACCEL_LIBRARY_LIST="
1625     $HWACCEL_AUTODETECT_LIBRARY_LIST
1626     $HWACCEL_LIBRARY_NONFREE_LIST
1627     libmfx
1628     mmal
1629     omx
1630 "
1631
1632 DOCUMENT_LIST="
1633     doc
1634     htmlpages
1635     manpages
1636     podpages
1637     txtpages
1638 "
1639
1640 FEATURE_LIST="
1641     ftrapv
1642     gray
1643     hardcoded_tables
1644     omx_rpi
1645     runtime_cpudetect
1646     safe_bitstream_reader
1647     shared
1648     small
1649     static
1650     swscale_alpha
1651 "
1652
1653 LIBRARY_LIST="
1654     avcodec
1655     avdevice
1656     avfilter
1657     avformat
1658     avresample
1659     avutil
1660     postproc
1661     swresample
1662     swscale
1663 "
1664
1665 LICENSE_LIST="
1666     gpl
1667     nonfree
1668     version3
1669 "
1670
1671 PROGRAM_LIST="
1672     ffplay
1673     ffprobe
1674     ffserver
1675     ffmpeg
1676 "
1677
1678 SUBSYSTEM_LIST="
1679     dct
1680     dwt
1681     error_resilience
1682     faan
1683     fast_unaligned
1684     fft
1685     lsp
1686     lzo
1687     mdct
1688     pixelutils
1689     network
1690     rdft
1691 "
1692
1693 CONFIG_LIST="
1694     $COMPONENT_LIST
1695     $DOCUMENT_LIST
1696     $EXAMPLE_LIST
1697     $EXTERNAL_LIBRARY_LIST
1698     $HWACCEL_LIBRARY_LIST
1699     $FEATURE_LIST
1700     $LICENSE_LIST
1701     $LIBRARY_LIST
1702     $PROGRAM_LIST
1703     $SUBSYSTEM_LIST
1704     fontconfig
1705     memalign_hack
1706     memory_poisoning
1707     neon_clobber_test
1708     pic
1709     pod2man
1710     raise_major
1711     thumb
1712     valgrind_backtrace
1713     xmm_clobber_test
1714 "
1715
1716 THREADS_LIST="
1717     pthreads
1718     os2threads
1719     w32threads
1720 "
1721
1722 ATOMICS_LIST="
1723     atomics_gcc
1724     atomics_suncc
1725     atomics_win32
1726 "
1727
1728 AUTODETECT_LIBS="
1729     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1730     $HWACCEL_AUTODETECT_LIBRARY_LIST
1731     $THREADS_LIST
1732 "
1733
1734 ARCH_LIST="
1735     aarch64
1736     alpha
1737     arm
1738     avr32
1739     avr32_ap
1740     avr32_uc
1741     bfin
1742     ia64
1743     m68k
1744     mips
1745     mips64
1746     parisc
1747     ppc
1748     ppc64
1749     s390
1750     sh4
1751     sparc
1752     sparc64
1753     tilegx
1754     tilepro
1755     tomi
1756     x86
1757     x86_32
1758     x86_64
1759 "
1760
1761 ARCH_EXT_LIST_ARM="
1762     armv5te
1763     armv6
1764     armv6t2
1765     armv8
1766     neon
1767     vfp
1768     vfpv3
1769     setend
1770 "
1771
1772 ARCH_EXT_LIST_MIPS="
1773     mipsfpu
1774     mips32r2
1775     mips32r5
1776     mips64r2
1777     mips32r6
1778     mips64r6
1779     mipsdsp
1780     mipsdspr2
1781     msa
1782 "
1783
1784 ARCH_EXT_LIST_LOONGSON="
1785     loongson2
1786     loongson3
1787     mmi
1788 "
1789
1790 ARCH_EXT_LIST_X86_SIMD="
1791     aesni
1792     amd3dnow
1793     amd3dnowext
1794     avx
1795     avx2
1796     fma3
1797     fma4
1798     mmx
1799     mmxext
1800     sse
1801     sse2
1802     sse3
1803     sse4
1804     sse42
1805     ssse3
1806     xop
1807 "
1808
1809 ARCH_EXT_LIST_PPC="
1810     altivec
1811     dcbzl
1812     ldbrx
1813     power8
1814     ppc4xx
1815     vsx
1816 "
1817
1818 ARCH_EXT_LIST_X86="
1819     $ARCH_EXT_LIST_X86_SIMD
1820     cpunop
1821     i686
1822 "
1823
1824 ARCH_EXT_LIST="
1825     $ARCH_EXT_LIST_ARM
1826     $ARCH_EXT_LIST_PPC
1827     $ARCH_EXT_LIST_X86
1828     $ARCH_EXT_LIST_MIPS
1829     $ARCH_EXT_LIST_LOONGSON
1830 "
1831
1832 ARCH_FEATURES="
1833     aligned_stack
1834     fast_64bit
1835     fast_clz
1836     fast_cmov
1837     local_aligned_8
1838     local_aligned_16
1839     local_aligned_32
1840     simd_align_16
1841 "
1842
1843 BUILTIN_LIST="
1844     atomic_cas_ptr
1845     machine_rw_barrier
1846     MemoryBarrier
1847     mm_empty
1848     rdtsc
1849     sarestart
1850     sem_timedwait
1851     sync_val_compare_and_swap
1852 "
1853 HAVE_LIST_CMDLINE="
1854     inline_asm
1855     symver
1856     yasm
1857 "
1858
1859 HAVE_LIST_PUB="
1860     bigendian
1861     fast_unaligned
1862 "
1863
1864 HEADERS_LIST="
1865     alsa_asoundlib_h
1866     altivec_h
1867     arpa_inet_h
1868     asm_types_h
1869     cdio_paranoia_h
1870     cdio_paranoia_paranoia_h
1871     cuda_h
1872     dispatch_dispatch_h
1873     dev_bktr_ioctl_bt848_h
1874     dev_bktr_ioctl_meteor_h
1875     dev_ic_bt8xx_h
1876     dev_video_bktr_ioctl_bt848_h
1877     dev_video_meteor_ioctl_meteor_h
1878     direct_h
1879     dirent_h
1880     dlfcn_h
1881     d3d11_h
1882     dxva_h
1883     ES2_gl_h
1884     gsm_h
1885     io_h
1886     mach_mach_time_h
1887     machine_ioctl_bt848_h
1888     machine_ioctl_meteor_h
1889     malloc_h
1890     opencv2_core_core_c_h
1891     openjpeg_2_1_openjpeg_h
1892     openjpeg_2_0_openjpeg_h
1893     openjpeg_1_5_openjpeg_h
1894     OpenGL_gl3_h
1895     poll_h
1896     sndio_h
1897     soundcard_h
1898     stdatomic_h
1899     sys_mman_h
1900     sys_param_h
1901     sys_resource_h
1902     sys_select_h
1903     sys_soundcard_h
1904     sys_time_h
1905     sys_un_h
1906     sys_videoio_h
1907     termios_h
1908     udplite_h
1909     unistd_h
1910     valgrind_valgrind_h
1911     windows_h
1912     winsock2_h
1913 "
1914
1915 INTRINSICS_LIST="
1916     intrinsics_neon
1917 "
1918
1919 COMPLEX_FUNCS="
1920     cabs
1921     cexp
1922 "
1923
1924 MATH_FUNCS="
1925     atanf
1926     atan2f
1927     cbrt
1928     cbrtf
1929     copysign
1930     cosf
1931     erf
1932     exp2
1933     exp2f
1934     expf
1935     hypot
1936     isfinite
1937     isinf
1938     isnan
1939     ldexpf
1940     llrint
1941     llrintf
1942     log2
1943     log2f
1944     log10f
1945     lrint
1946     lrintf
1947     powf
1948     rint
1949     round
1950     roundf
1951     sinf
1952     trunc
1953     truncf
1954 "
1955
1956 SYSTEM_FUNCS="
1957     access
1958     aligned_malloc
1959     arc4random
1960     clock_gettime
1961     closesocket
1962     CommandLineToArgvW
1963     CoTaskMemFree
1964     CryptGenRandom
1965     dlopen
1966     fcntl
1967     flt_lim
1968     fork
1969     getaddrinfo
1970     gethrtime
1971     getopt
1972     GetProcessAffinityMask
1973     GetProcessMemoryInfo
1974     GetProcessTimes
1975     getrusage
1976     GetSystemTimeAsFileTime
1977     gettimeofday
1978     glob
1979     glXGetProcAddress
1980     gmtime_r
1981     inet_aton
1982     isatty
1983     jack_port_get_latency_range
1984     kbhit
1985     LoadLibrary
1986     localtime_r
1987     lstat
1988     lzo1x_999_compress
1989     mach_absolute_time
1990     MapViewOfFile
1991     memalign
1992     mkstemp
1993     mmap
1994     mprotect
1995     nanosleep
1996     PeekNamedPipe
1997     posix_memalign
1998     pthread_cancel
1999     sched_getaffinity
2000     SetConsoleTextAttribute
2001     SetConsoleCtrlHandler
2002     setmode
2003     setrlimit
2004     Sleep
2005     strerror_r
2006     sysconf
2007     sysctl
2008     usleep
2009     UTGetOSTypeFromString
2010     VirtualAlloc
2011     wglGetProcAddress
2012 "
2013
2014 TOOLCHAIN_FEATURES="
2015     as_dn_directive
2016     as_fpu_directive
2017     as_func
2018     as_object_arch
2019     asm_mod_q
2020     attribute_may_alias
2021     attribute_packed
2022     ebp_available
2023     ebx_available
2024     gnu_as
2025     gnu_windres
2026     ibm_asm
2027     inline_asm_direct_symbol_refs
2028     inline_asm_labels
2029     inline_asm_nonlocal_labels
2030     pragma_deprecated
2031     rsync_contimeout
2032     symver_asm_label
2033     symver_gnu_asm
2034     vfp_args
2035     xform_asm
2036     xmm_clobbers
2037 "
2038
2039 TYPES_LIST="
2040     CONDITION_VARIABLE_Ptr
2041     socklen_t
2042     struct_addrinfo
2043     struct_group_source_req
2044     struct_ip_mreq_source
2045     struct_ipv6_mreq
2046     struct_msghdr_msg_flags
2047     struct_pollfd
2048     struct_rusage_ru_maxrss
2049     struct_sctp_event_subscribe
2050     struct_sockaddr_in6
2051     struct_sockaddr_sa_len
2052     struct_sockaddr_storage
2053     struct_stat_st_mtim_tv_nsec
2054     struct_v4l2_frmivalenum_discrete
2055 "
2056
2057 HAVE_LIST="
2058     $ARCH_EXT_LIST
2059     $(add_suffix _external $ARCH_EXT_LIST)
2060     $(add_suffix _inline   $ARCH_EXT_LIST)
2061     $ARCH_FEATURES
2062     $ATOMICS_LIST
2063     $BUILTIN_LIST
2064     $COMPLEX_FUNCS
2065     $HAVE_LIST_CMDLINE
2066     $HAVE_LIST_PUB
2067     $HEADERS_LIST
2068     $INTRINSICS_LIST
2069     $MATH_FUNCS
2070     $SYSTEM_FUNCS
2071     $THREADS_LIST
2072     $TOOLCHAIN_FEATURES
2073     $TYPES_LIST
2074     atomics_native
2075     dos_paths
2076     dxva2_lib
2077     dxva2api_cobj
2078     libc_msvcrt
2079     libdc1394_1
2080     libdc1394_2
2081     makeinfo
2082     makeinfo_html
2083     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2084     perl
2085     pod2man
2086     sdl2
2087     section_data_rel_ro
2088     texi2html
2089     threads
2090     vaapi_drm
2091     vaapi_x11
2092     vdpau_x11
2093     winrt
2094     xlib
2095 "
2096
2097 # options emitted with CONFIG_ prefix but not available on the command line
2098 CONFIG_EXTRA="
2099     aandcttables
2100     ac3dsp
2101     audio_frame_queue
2102     audiodsp
2103     blockdsp
2104     bswapdsp
2105     cabac
2106     dirac_parse
2107     dvprofile
2108     exif
2109     faandct
2110     faanidct
2111     fdctdsp
2112     flacdsp
2113     fmtconvert
2114     frame_thread_encoder
2115     g722dsp
2116     golomb
2117     gplv3
2118     h263dsp
2119     h264chroma
2120     h264dsp
2121     h264parse
2122     h264pred
2123     h264qpel
2124     hpeldsp
2125     huffman
2126     huffyuvdsp
2127     huffyuvencdsp
2128     idctdsp
2129     iirfilter
2130     mdct15
2131     intrax8
2132     iso_media
2133     ividsp
2134     jpegtables
2135     lgplv3
2136     libx262
2137     llauddsp
2138     llviddsp
2139     llvidencdsp
2140     lpc
2141     lzf
2142     me_cmp
2143     mpeg_er
2144     mpegaudio
2145     mpegaudiodsp
2146     mpegvideo
2147     mpegvideoenc
2148     mss34dsp
2149     pixblockdsp
2150     qpeldsp
2151     qsv
2152     qsvdec
2153     qsvenc
2154     rangecoder
2155     riffdec
2156     riffenc
2157     rtpdec
2158     rtpenc_chain
2159     rv34dsp
2160     sinewin
2161     snappy
2162     srtp
2163     startcode
2164     texturedsp
2165     texturedspenc
2166     tpeldsp
2167     vaapi_encode
2168     vc1dsp
2169     videodsp
2170     vp3dsp
2171     vp56dsp
2172     vp8dsp
2173     vt_bt2020
2174     wma_freqs
2175     wmv2dsp
2176 "
2177
2178 CMDLINE_SELECT="
2179     $ARCH_EXT_LIST
2180     $CONFIG_LIST
2181     $HAVE_LIST_CMDLINE
2182     $THREADS_LIST
2183     asm
2184     cross_compile
2185     debug
2186     extra_warnings
2187     logging
2188     lto
2189     optimizations
2190     rpath
2191     stripping
2192 "
2193
2194 PATHS_LIST="
2195     bindir
2196     datadir
2197     docdir
2198     incdir
2199     libdir
2200     mandir
2201     pkgconfigdir
2202     prefix
2203     shlibdir
2204     install_name_dir
2205 "
2206
2207 CMDLINE_SET="
2208     $PATHS_LIST
2209     ar
2210     arch
2211     as
2212     assert_level
2213     build_suffix
2214     cc
2215     objcc
2216     cpu
2217     cross_prefix
2218     custom_allocator
2219     cxx
2220     dep_cc
2221     doxygen
2222     env
2223     extra_version
2224     gas
2225     host_cc
2226     host_cflags
2227     host_ld
2228     host_ldflags
2229     host_libs
2230     host_os
2231     install
2232     ld
2233     ln_s
2234     logfile
2235     malloc_prefix
2236     nm
2237     optflags
2238     pkg_config
2239     pkg_config_flags
2240     progs_suffix
2241     random_seed
2242     ranlib
2243     samples
2244     strip
2245     sws_max_filter_size
2246     sysinclude
2247     sysroot
2248     target_exec
2249     target_os
2250     target_path
2251     target_samples
2252     tempprefix
2253     toolchain
2254     valgrind
2255     yasmexe
2256 "
2257
2258 CMDLINE_APPEND="
2259     extra_cflags
2260     extra_cxxflags
2261     extra_objcflags
2262     host_cppflags
2263 "
2264
2265 # code dependency declarations
2266
2267 # architecture extensions
2268
2269 armv5te_deps="arm"
2270 armv6_deps="arm"
2271 armv6t2_deps="arm"
2272 armv8_deps="aarch64"
2273 neon_deps_any="aarch64 arm"
2274 intrinsics_neon_deps="neon"
2275 vfp_deps_any="aarch64 arm"
2276 vfpv3_deps="vfp"
2277 setend_deps="arm"
2278
2279 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2280
2281 loongson2_deps="mips"
2282 loongson3_deps="mips"
2283 mipsfpu_deps="mips"
2284 mipsdsp_deps="mips"
2285 mipsdspr2_deps="mips"
2286 mips32r2_deps="mips"
2287 mips32r5_deps="mips"
2288 mips32r6_deps="mips"
2289 mips64r2_deps="mips"
2290 mips64r6_deps="mips"
2291 msa_deps="mipsfpu"
2292 mmi_deps="mips"
2293
2294 altivec_deps="ppc"
2295 dcbzl_deps="ppc"
2296 ldbrx_deps="ppc"
2297 ppc4xx_deps="ppc"
2298 vsx_deps="altivec"
2299 power8_deps="vsx"
2300
2301 cpunop_deps="i686"
2302 x86_64_select="i686"
2303 x86_64_suggest="fast_cmov"
2304
2305 amd3dnow_deps="mmx"
2306 amd3dnowext_deps="amd3dnow"
2307 i686_deps="x86"
2308 mmx_deps="x86"
2309 mmxext_deps="mmx"
2310 sse_deps="mmxext"
2311 sse2_deps="sse"
2312 sse3_deps="sse2"
2313 ssse3_deps="sse3"
2314 sse4_deps="ssse3"
2315 sse42_deps="sse4"
2316 aesni_deps="sse42"
2317 avx_deps="sse42"
2318 xop_deps="avx"
2319 fma3_deps="avx"
2320 fma4_deps="avx"
2321 avx2_deps="avx"
2322
2323 mmx_external_deps="yasm"
2324 mmx_inline_deps="inline_asm"
2325 mmx_suggest="mmx_external mmx_inline"
2326
2327 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2328     eval dep=\$${ext}_deps
2329     eval ${ext}_external_deps='"${dep}_external"'
2330     eval ${ext}_inline_deps='"${dep}_inline"'
2331     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2332 done
2333
2334 aligned_stack_if_any="aarch64 ppc x86"
2335 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2336 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2337 fast_unaligned_if_any="aarch64 ppc x86"
2338 simd_align_16_if_any="altivec neon sse"
2339
2340 # system capabilities
2341 symver_if_any="symver_asm_label symver_gnu_asm"
2342 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2343
2344 # threading support
2345 atomics_gcc_if="sync_val_compare_and_swap"
2346 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2347 atomics_win32_if="MemoryBarrier"
2348 atomics_native_if_any="$ATOMICS_LIST"
2349 w32threads_deps="atomics_native"
2350 threads_if_any="$THREADS_LIST"
2351
2352 # subsystems
2353 dct_select="rdft"
2354 dirac_parse_select="golomb"
2355 error_resilience_select="me_cmp"
2356 faandct_deps="faan fdctdsp"
2357 faanidct_deps="faan idctdsp"
2358 h264dsp_select="startcode"
2359 frame_thread_encoder_deps="encoders threads"
2360 intrax8_select="blockdsp idctdsp"
2361 mdct_select="fft"
2362 mdct15_select="fft"
2363 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2364 mpeg_er_select="error_resilience"
2365 mpegaudio_select="mpegaudiodsp"
2366 mpegaudiodsp_select="dct"
2367 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2368 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2369 vc1dsp_select="h264chroma qpeldsp startcode"
2370 rdft_select="fft"
2371
2372 # decoders / encoders
2373 aac_decoder_select="mdct15 mdct sinewin"
2374 aac_fixed_decoder_select="mdct sinewin"
2375 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2376 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2377 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2378 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2379 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2380 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2381 adpcm_g722_decoder_select="g722dsp"
2382 adpcm_g722_encoder_select="g722dsp"
2383 aic_decoder_select="golomb idctdsp"
2384 alac_encoder_select="lpc"
2385 als_decoder_select="bswapdsp"
2386 amrnb_decoder_select="lsp"
2387 amrwb_decoder_select="lsp"
2388 amv_decoder_select="sp5x_decoder exif"
2389 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2390 ape_decoder_select="bswapdsp llauddsp"
2391 apng_decoder_select="zlib"
2392 apng_encoder_select="llvidencdsp zlib"
2393 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2394 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2395 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2396 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2397 atrac1_decoder_select="mdct sinewin"
2398 atrac3_decoder_select="mdct"
2399 atrac3p_decoder_select="mdct sinewin"
2400 avrn_decoder_select="exif jpegtables"
2401 bink_decoder_select="blockdsp hpeldsp"
2402 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2403 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2404 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2405 cllc_decoder_select="bswapdsp"
2406 comfortnoise_encoder_select="lpc"
2407 cook_decoder_select="audiodsp mdct sinewin"
2408 cscd_decoder_select="lzo"
2409 cscd_decoder_suggest="zlib"
2410 dca_decoder_select="mdct"
2411 dds_decoder_select="texturedsp"
2412 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2413 dnxhd_decoder_select="blockdsp idctdsp"
2414 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2415 dvvideo_decoder_select="dvprofile idctdsp"
2416 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2417 dxa_decoder_select="zlib"
2418 dxv_decoder_select="lzf texturedsp"
2419 eac3_decoder_select="ac3_decoder"
2420 eac3_encoder_select="ac3_encoder"
2421 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2422 eatgq_decoder_select="aandcttables"
2423 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2424 exr_decoder_select="zlib"
2425 ffv1_decoder_select="golomb rangecoder"
2426 ffv1_encoder_select="rangecoder"
2427 ffvhuff_decoder_select="huffyuv_decoder"
2428 ffvhuff_encoder_select="huffyuv_encoder"
2429 fic_decoder_select="golomb"
2430 flac_decoder_select="flacdsp golomb"
2431 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2432 flashsv2_decoder_select="zlib"
2433 flashsv2_encoder_select="zlib"
2434 flashsv_decoder_select="zlib"
2435 flashsv_encoder_select="zlib"
2436 flv_decoder_select="h263_decoder"
2437 flv_encoder_select="h263_encoder"
2438 fourxm_decoder_select="blockdsp bswapdsp"
2439 fraps_decoder_select="bswapdsp huffman"
2440 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2441 g729_decoder_select="audiodsp"
2442 h261_decoder_select="mpegvideo"
2443 h261_encoder_select="aandcttables mpegvideoenc"
2444 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2445 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2446 h263i_decoder_select="h263_decoder"
2447 h263p_decoder_select="h263_decoder"
2448 h263p_encoder_select="h263_encoder"
2449 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2450 h264_decoder_suggest="error_resilience"
2451 hap_decoder_select="snappy texturedsp"
2452 hap_encoder_deps="libsnappy"
2453 hap_encoder_select="texturedspenc"
2454 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2455 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2456 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2457 iac_decoder_select="imc_decoder"
2458 imc_decoder_select="bswapdsp fft mdct sinewin"
2459 indeo3_decoder_select="hpeldsp"
2460 indeo4_decoder_select="ividsp"
2461 indeo5_decoder_select="ividsp"
2462 interplay_video_decoder_select="hpeldsp"
2463 jpegls_decoder_select="golomb mjpeg_decoder"
2464 jpegls_encoder_select="golomb"
2465 jv_decoder_select="blockdsp"
2466 lagarith_decoder_select="llviddsp"
2467 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2468 loco_decoder_select="golomb"
2469 magicyuv_decoder_select="llviddsp"
2470 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2471 metasound_decoder_select="lsp mdct sinewin"
2472 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2473 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2474 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2475 mjpegb_decoder_select="mjpeg_decoder"
2476 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2477 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2478 mlp_decoder_select="mlp_parser"
2479 motionpixels_decoder_select="bswapdsp"
2480 mp1_decoder_select="mpegaudio"
2481 mp1float_decoder_select="mpegaudio"
2482 mp2_decoder_select="mpegaudio"
2483 mp2float_decoder_select="mpegaudio"
2484 mp3_decoder_select="mpegaudio"
2485 mp3adu_decoder_select="mpegaudio"
2486 mp3adufloat_decoder_select="mpegaudio"
2487 mp3float_decoder_select="mpegaudio"
2488 mp3on4_decoder_select="mpegaudio"
2489 mp3on4float_decoder_select="mpegaudio"
2490 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2491 mpc8_decoder_select="mpegaudiodsp"
2492 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2493 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2494 mpegvideo_decoder_select="mpegvideo"
2495 mpeg1video_decoder_select="mpegvideo"
2496 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2497 mpeg2video_decoder_select="mpegvideo"
2498 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2499 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2500 mpeg4_encoder_select="h263_encoder"
2501 msa1_decoder_select="mss34dsp"
2502 msmpeg4v1_decoder_select="h263_decoder"
2503 msmpeg4v2_decoder_select="h263_decoder"
2504 msmpeg4v2_encoder_select="h263_encoder"
2505 msmpeg4v3_decoder_select="h263_decoder"
2506 msmpeg4v3_encoder_select="h263_encoder"
2507 mss2_decoder_select="vc1_decoder mpegvideo"
2508 mts2_decoder_select="mss34dsp"
2509 mxpeg_decoder_select="mjpeg_decoder"
2510 nellymoser_decoder_select="mdct sinewin"
2511 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2512 nuv_decoder_select="idctdsp lzo"
2513 on2avc_decoder_select="mdct"
2514 opus_decoder_deps="swresample"
2515 opus_decoder_select="mdct15"
2516 opus_encoder_select="audio_frame_queue mdct15"
2517 png_decoder_select="zlib"
2518 png_encoder_select="llvidencdsp zlib"
2519 prores_decoder_select="blockdsp idctdsp"
2520 prores_encoder_select="fdctdsp"
2521 qcelp_decoder_select="lsp"
2522 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2523 ra_144_decoder_select="audiodsp"
2524 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2525 ralf_decoder_select="golomb"
2526 rawvideo_decoder_select="bswapdsp"
2527 rscc_decoder_select="zlib"
2528 rtjpeg_decoder_select="me_cmp"
2529 rv10_decoder_select="h263_decoder"
2530 rv10_encoder_select="h263_encoder"
2531 rv20_decoder_select="h263_decoder"
2532 rv20_encoder_select="h263_encoder"
2533 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2534 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2535 screenpresso_decoder_select="zlib"
2536 shorten_decoder_select="golomb bswapdsp"
2537 sipr_decoder_select="lsp"
2538 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2539 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2540 sonic_decoder_select="golomb rangecoder"
2541 sonic_encoder_select="golomb rangecoder"
2542 sonic_ls_encoder_select="golomb rangecoder"
2543 sp5x_decoder_select="mjpeg_decoder"
2544 svq1_decoder_select="hpeldsp"
2545 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2546 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2547 svq3_decoder_suggest="zlib"
2548 tak_decoder_select="audiodsp"
2549 tdsc_decoder_select="zlib mjpeg_decoder"
2550 theora_decoder_select="vp3_decoder"
2551 thp_decoder_select="mjpeg_decoder"
2552 tiff_decoder_suggest="zlib lzma"
2553 tiff_encoder_suggest="zlib"
2554 truehd_decoder_select="mlp_parser"
2555 truemotion2_decoder_select="bswapdsp"
2556 truespeech_decoder_select="bswapdsp"
2557 tscc_decoder_select="zlib"
2558 twinvq_decoder_select="mdct lsp sinewin"
2559 txd_decoder_select="texturedsp"
2560 utvideo_decoder_select="bswapdsp llviddsp"
2561 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2562 vble_decoder_select="llviddsp"
2563 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2564 vc1_qsv_decoder_deps="libmfx"
2565 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2566 vc1image_decoder_select="vc1_decoder"
2567 vorbis_decoder_select="mdct"
2568 vorbis_encoder_select="mdct"
2569 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2570 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2571 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2572 vp6a_decoder_select="vp6_decoder"
2573 vp6f_decoder_select="vp6_decoder"
2574 vp7_decoder_select="h264pred videodsp vp8dsp"
2575 vp8_decoder_select="h264pred videodsp vp8dsp"
2576 vp9_decoder_select="videodsp vp9_parser"
2577 webp_decoder_select="vp8_decoder exif"
2578 wmalossless_decoder_select="llauddsp"
2579 wmapro_decoder_select="mdct sinewin wma_freqs"
2580 wmav1_decoder_select="mdct sinewin wma_freqs"
2581 wmav1_encoder_select="mdct sinewin wma_freqs"
2582 wmav2_decoder_select="mdct sinewin wma_freqs"
2583 wmav2_encoder_select="mdct sinewin wma_freqs"
2584 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2585 wmv1_decoder_select="h263_decoder"
2586 wmv1_encoder_select="h263_encoder"
2587 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2588 wmv2_encoder_select="h263_encoder wmv2dsp"
2589 wmv3_decoder_select="vc1_decoder"
2590 wmv3image_decoder_select="wmv3_decoder"
2591 xma1_decoder_select="wmapro_decoder"
2592 xma2_decoder_select="wmapro_decoder"
2593 zerocodec_decoder_select="zlib"
2594 zlib_decoder_select="zlib"
2595 zlib_encoder_select="zlib"
2596 zmbv_decoder_select="zlib"
2597 zmbv_encoder_select="zlib"
2598
2599 # platform codecs
2600 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2601 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2602
2603 # hardware accelerators
2604 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2605 cuda_deps_any="dlopen LoadLibrary"
2606 cuvid_deps="cuda"
2607 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2608 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2609 dxva2_extralibs="-luser32"
2610 vaapi_deps="va_va_h"
2611 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2612 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2613 vda_deps="vda_framework pthreads"
2614 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2615 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2616 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2617 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2618 xvmc_deps="X11_extensions_XvMClib_h"
2619
2620 h263_vaapi_hwaccel_deps="vaapi"
2621 h263_vaapi_hwaccel_select="h263_decoder"
2622 h263_videotoolbox_hwaccel_deps="videotoolbox"
2623 h263_videotoolbox_hwaccel_select="h263_decoder"
2624 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2625 h264_cuvid_hwaccel_deps="cuda cuvid"
2626 h264_d3d11va_hwaccel_deps="d3d11va"
2627 h264_d3d11va_hwaccel_select="h264_decoder"
2628 h264_dxva2_hwaccel_deps="dxva2"
2629 h264_dxva2_hwaccel_select="h264_decoder"
2630 h264_mediacodec_decoder_deps="mediacodec"
2631 h264_mediacodec_hwaccel_deps="mediacodec"
2632 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2633 h264_mmal_decoder_deps="mmal"
2634 h264_mmal_decoder_select="mmal"
2635 h264_mmal_hwaccel_deps="mmal"
2636 h264_omx_encoder_deps="omx"
2637 h264_qsv_hwaccel_deps="libmfx"
2638 h264_vaapi_hwaccel_deps="vaapi"
2639 h264_vaapi_hwaccel_select="h264_decoder"
2640 h264_vda_decoder_deps="vda"
2641 h264_vda_decoder_select="h264_decoder"
2642 h264_vda_hwaccel_deps="vda"
2643 h264_vda_hwaccel_select="h264_decoder"
2644 h264_vda_old_hwaccel_deps="vda"
2645 h264_vda_old_hwaccel_select="h264_decoder"
2646 h264_vdpau_decoder_deps="vdpau"
2647 h264_vdpau_decoder_select="h264_decoder"
2648 h264_vdpau_hwaccel_deps="vdpau"
2649 h264_vdpau_hwaccel_select="h264_decoder"
2650 h264_videotoolbox_hwaccel_deps="videotoolbox"
2651 h264_videotoolbox_hwaccel_select="h264_decoder"
2652 hevc_cuvid_hwaccel_deps="cuda cuvid"
2653 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2654 hevc_d3d11va_hwaccel_select="hevc_decoder"
2655 hevc_mediacodec_decoder_deps="mediacodec"
2656 hevc_mediacodec_hwaccel_deps="mediacodec"
2657 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2658 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2659 hevc_dxva2_hwaccel_select="hevc_decoder"
2660 hevc_qsv_hwaccel_deps="libmfx"
2661 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2662 hevc_vaapi_hwaccel_select="hevc_decoder"
2663 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2664 hevc_vdpau_hwaccel_select="hevc_decoder"
2665 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2666 mpeg_vdpau_decoder_deps="vdpau"
2667 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2668 mpeg_xvmc_hwaccel_deps="xvmc"
2669 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2670 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2671 mpeg1_vdpau_decoder_deps="vdpau"
2672 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2673 mpeg1_vdpau_hwaccel_deps="vdpau"
2674 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2675 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2676 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2677 mpeg1_xvmc_hwaccel_deps="xvmc"
2678 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2679 mpeg2_crystalhd_decoder_select="crystalhd"
2680 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2681 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2682 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2683 mpeg2_dxva2_hwaccel_deps="dxva2"
2684 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2685 mpeg2_mmal_decoder_deps="mmal"
2686 mpeg2_mmal_decoder_select="mmal"
2687 mpeg2_mmal_hwaccel_deps="mmal"
2688 mpeg2_qsv_hwaccel_deps="libmfx"
2689 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2690 mpeg2_vaapi_hwaccel_deps="vaapi"
2691 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2692 mpeg2_vdpau_hwaccel_deps="vdpau"
2693 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2694 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2695 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2696 mpeg2_xvmc_hwaccel_deps="xvmc"
2697 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2698 mpeg4_crystalhd_decoder_select="crystalhd"
2699 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2700 mpeg4_mediacodec_decoder_deps="mediacodec"
2701 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2702 mpeg4_mmal_decoder_deps="mmal"
2703 mpeg4_mmal_decoder_select="mmal"
2704 mpeg4_mmal_hwaccel_deps="mmal"
2705 mpeg4_omx_encoder_deps="omx"
2706 mpeg4_vaapi_hwaccel_deps="vaapi"
2707 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2708 mpeg4_vdpau_decoder_deps="vdpau"
2709 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2710 mpeg4_vdpau_hwaccel_deps="vdpau"
2711 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2712 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2713 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2714 msmpeg4_crystalhd_decoder_select="crystalhd"
2715 vc1_crystalhd_decoder_select="crystalhd"
2716 vc1_cuvid_hwaccel_deps="cuda cuvid"
2717 vc1_d3d11va_hwaccel_deps="d3d11va"
2718 vc1_d3d11va_hwaccel_select="vc1_decoder"
2719 vc1_dxva2_hwaccel_deps="dxva2"
2720 vc1_dxva2_hwaccel_select="vc1_decoder"
2721 vc1_mmal_decoder_deps="mmal"
2722 vc1_mmal_decoder_select="mmal"
2723 vc1_mmal_hwaccel_deps="mmal"
2724 vc1_qsv_hwaccel_deps="libmfx"
2725 vc1_qsv_hwaccel_select="qsvdec_vc1"
2726 vc1_vaapi_hwaccel_deps="vaapi"
2727 vc1_vaapi_hwaccel_select="vc1_decoder"
2728 vc1_vdpau_decoder_deps="vdpau"
2729 vc1_vdpau_decoder_select="vc1_decoder"
2730 vc1_vdpau_hwaccel_deps="vdpau"
2731 vc1_vdpau_hwaccel_select="vc1_decoder"
2732 vp8_cuvid_hwaccel_deps="cuda cuvid"
2733 vp9_cuvid_hwaccel_deps="cuda cuvid"
2734 vp8_mediacodec_decoder_deps="mediacodec"
2735 vp8_mediacodec_hwaccel_deps="mediacodec"
2736 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2737 vp9_d3d11va_hwaccel_select="vp9_decoder"
2738 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2739 vp9_dxva2_hwaccel_select="vp9_decoder"
2740 vp9_mediacodec_decoder_deps="mediacodec"
2741 vp9_mediacodec_hwaccel_deps="mediacodec"
2742 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2743 vp9_vaapi_hwaccel_select="vp9_decoder"
2744 wmv3_crystalhd_decoder_select="crystalhd"
2745 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2746 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2747 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2748 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2749 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2750
2751 # hardware-accelerated codecs
2752 omx_deps="dlopen pthreads"
2753 omx_extralibs='$ldl'
2754 qsvdec_select="qsv"
2755 qsvenc_select="qsv"
2756 vaapi_encode_deps="vaapi"
2757
2758 hwupload_cuda_filter_deps="cuda"
2759 scale_npp_filter_deps="cuda libnpp"
2760
2761 nvenc_deps="cuda"
2762 nvenc_deps_any="dlopen LoadLibrary"
2763 nvenc_encoder_deps="nvenc"
2764 h264_cuvid_decoder_deps="cuda cuvid"
2765 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2766 h264_nvenc_encoder_deps="nvenc"
2767 h264_qsv_decoder_deps="libmfx"
2768 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2769 h264_qsv_encoder_deps="libmfx"
2770 h264_qsv_encoder_select="qsvenc"
2771 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2772 h264_vaapi_encoder_select="vaapi_encode golomb"
2773
2774 hevc_cuvid_decoder_deps="cuda cuvid"
2775 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2776 hevc_nvenc_encoder_deps="nvenc"
2777 hevc_qsv_decoder_deps="libmfx"
2778 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2779 hevc_qsv_encoder_deps="libmfx"
2780 hevc_qsv_encoder_select="qsvenc"
2781 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2782 hevc_vaapi_encoder_select="vaapi_encode golomb"
2783 mjpeg_cuvid_decoder_deps="cuda cuvid"
2784 mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"
2785 mpeg1_cuvid_decoder_deps="cuda cuvid"
2786 mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"
2787 mpeg2_cuvid_decoder_deps="cuda cuvid"
2788 mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"
2789 mpeg2_qsv_decoder_deps="libmfx"
2790 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2791 mpeg2_qsv_encoder_deps="libmfx"
2792 mpeg2_qsv_encoder_select="qsvenc"
2793 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2794 mpeg2_vaapi_encoder_select="vaapi_encode"
2795 mpeg4_cuvid_decoder_deps="cuda cuvid"
2796 mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"
2797 nvenc_h264_encoder_deps="nvenc"
2798 nvenc_hevc_encoder_deps="nvenc"
2799
2800 vc1_cuvid_decoder_deps="cuda cuvid"
2801 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2802 vp8_cuvid_decoder_deps="cuda cuvid"
2803 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2804 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2805 vp8_vaapi_encoder_select="vaapi_encode"
2806 vp9_cuvid_decoder_deps="cuda cuvid"
2807 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2808
2809 # parsers
2810 h264_parser_select="golomb h264dsp h264parse"
2811 hevc_parser_select="golomb"
2812 mpegvideo_parser_select="mpegvideo"
2813 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2814 vc1_parser_select="vc1dsp"
2815
2816 # bitstream_filters
2817 mjpeg2jpeg_bsf_select="jpegtables"
2818
2819 # external libraries
2820 aac_at_decoder_deps="audiotoolbox"
2821 ac3_at_decoder_deps="audiotoolbox"
2822 ac3_at_decoder_select="ac3_parser"
2823 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2824 alac_at_decoder_deps="audiotoolbox"
2825 amr_nb_at_decoder_deps="audiotoolbox"
2826 avisynth_deps_any="dlopen LoadLibrary"
2827 avisynth_demuxer_deps="avisynth"
2828 avisynth_demuxer_select="riffdec"
2829 eac3_at_decoder_deps="audiotoolbox"
2830 eac3_at_decoder_select="ac3_parser"
2831 gsm_ms_at_decoder_deps="audiotoolbox"
2832 ilbc_at_decoder_deps="audiotoolbox"
2833 mp1_at_decoder_deps="audiotoolbox"
2834 mp2_at_decoder_deps="audiotoolbox"
2835 mp3_at_decoder_deps="audiotoolbox"
2836 pcm_alaw_at_decoder_deps="audiotoolbox"
2837 pcm_mulaw_at_decoder_deps="audiotoolbox"
2838 qdmc_at_decoder_deps="audiotoolbox"
2839 qdm2_at_decoder_deps="audiotoolbox"
2840 aac_at_encoder_deps="audiotoolbox"
2841 aac_at_encoder_select="audio_frame_queue"
2842 alac_at_encoder_deps="audiotoolbox"
2843 alac_at_encoder_select="audio_frame_queue"
2844 ilbc_at_encoder_deps="audiotoolbox"
2845 ilbc_at_encoder_select="audio_frame_queue"
2846 pcm_alaw_at_encoder_deps="audiotoolbox"
2847 pcm_alaw_at_encoder_select="audio_frame_queue"
2848 pcm_mulaw_at_encoder_deps="audiotoolbox"
2849 pcm_mulaw_at_encoder_select="audio_frame_queue"
2850 chromaprint_muxer_deps="chromaprint"
2851 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2852 libcelt_decoder_deps="libcelt"
2853 libfdk_aac_decoder_deps="libfdk_aac"
2854 libfdk_aac_encoder_deps="libfdk_aac"
2855 libfdk_aac_encoder_select="audio_frame_queue"
2856 libgme_demuxer_deps="libgme"
2857 libgsm_decoder_deps="libgsm"
2858 libgsm_encoder_deps="libgsm"
2859 libgsm_ms_decoder_deps="libgsm"
2860 libgsm_ms_encoder_deps="libgsm"
2861 libilbc_decoder_deps="libilbc"
2862 libilbc_encoder_deps="libilbc"
2863 libkvazaar_encoder_deps="libkvazaar"
2864 libmodplug_demuxer_deps="libmodplug"
2865 libmp3lame_encoder_deps="libmp3lame"
2866 libmp3lame_encoder_select="audio_frame_queue"
2867 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2868 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2869 libopencore_amrnb_encoder_select="audio_frame_queue"
2870 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2871 libopenh264_decoder_deps="libopenh264"
2872 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2873 libopenh264_encoder_deps="libopenh264"
2874 libopenjpeg_decoder_deps="libopenjpeg"
2875 libopenjpeg_encoder_deps="libopenjpeg"
2876 libopenmpt_demuxer_deps="libopenmpt"
2877 libopus_decoder_deps="libopus"
2878 libopus_encoder_deps="libopus"
2879 libopus_encoder_select="audio_frame_queue"
2880 libschroedinger_decoder_deps="libschroedinger"
2881 libschroedinger_encoder_deps="libschroedinger"
2882 libshine_encoder_deps="libshine"
2883 libshine_encoder_select="audio_frame_queue"
2884 libspeex_decoder_deps="libspeex"
2885 libspeex_encoder_deps="libspeex"
2886 libspeex_encoder_select="audio_frame_queue"
2887 libtheora_encoder_deps="libtheora"
2888 libtwolame_encoder_deps="libtwolame"
2889 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2890 libvorbis_decoder_deps="libvorbis"
2891 libvorbis_encoder_deps="libvorbis"
2892 libvorbis_encoder_select="audio_frame_queue"
2893 libvpx_vp8_decoder_deps="libvpx"
2894 libvpx_vp8_encoder_deps="libvpx"
2895 libvpx_vp9_decoder_deps="libvpx"
2896 libvpx_vp9_encoder_deps="libvpx"
2897 libwavpack_encoder_deps="libwavpack"
2898 libwebp_encoder_deps="libwebp"
2899 libwebp_anim_encoder_deps="libwebp"
2900 libx262_encoder_deps="libx262"
2901 libx264_encoder_deps="libx264"
2902 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2903 libx264rgb_encoder_select="libx264_encoder"
2904 libx265_encoder_deps="libx265"
2905 libxavs_encoder_deps="libxavs"
2906 libxvid_encoder_deps="libxvid"
2907 libzvbi_teletext_decoder_deps="libzvbi"
2908 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2909 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2910 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2911 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2912 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2913
2914 # demuxers / muxers
2915 ac3_demuxer_select="ac3_parser"
2916 aiff_muxer_select="iso_media"
2917 asf_demuxer_select="riffdec"
2918 asf_o_demuxer_select="riffdec"
2919 asf_muxer_select="riffenc"
2920 asf_stream_muxer_select="asf_muxer"
2921 avi_demuxer_select="iso_media riffdec exif"
2922 avi_muxer_select="riffenc"
2923 caf_demuxer_select="iso_media riffdec"
2924 caf_muxer_select="iso_media"
2925 dash_muxer_select="mp4_muxer"
2926 dirac_demuxer_select="dirac_parser"
2927 dts_demuxer_select="dca_parser"
2928 dtshd_demuxer_select="dca_parser"
2929 dv_demuxer_select="dvprofile"
2930 dv_muxer_select="dvprofile"
2931 dxa_demuxer_select="riffdec"
2932 eac3_demuxer_select="ac3_parser"
2933 f4v_muxer_select="mov_muxer"
2934 fifo_muxer_deps="threads"
2935 flac_demuxer_select="flac_parser"
2936 hds_muxer_select="flv_muxer"
2937 hls_muxer_select="mpegts_muxer"
2938 image2_alias_pix_demuxer_select="image2_demuxer"
2939 image2_brender_pix_demuxer_select="image2_demuxer"
2940 ipod_muxer_select="mov_muxer"
2941 ismv_muxer_select="mov_muxer"
2942 libnut_demuxer_deps="libnut"
2943 libnut_muxer_deps="libnut"
2944 matroska_audio_muxer_select="matroska_muxer"
2945 matroska_demuxer_select="iso_media riffdec"
2946 matroska_demuxer_suggest="bzlib lzo zlib"
2947 matroska_muxer_select="iso_media riffenc"
2948 mmf_muxer_select="riffenc"
2949 mov_demuxer_select="iso_media riffdec"
2950 mov_demuxer_suggest="zlib"
2951 mov_muxer_select="iso_media riffenc rtpenc_chain"
2952 mp3_demuxer_select="mpegaudio_parser"
2953 mp4_muxer_select="mov_muxer"
2954 mpegts_demuxer_select="iso_media"
2955 mpegts_muxer_select="adts_muxer latm_muxer"
2956 mpegtsraw_demuxer_select="mpegts_demuxer"
2957 mxf_d10_muxer_select="mxf_muxer"
2958 mxf_opatom_muxer_select="mxf_muxer"
2959 nut_muxer_select="riffenc"
2960 nuv_demuxer_select="riffdec"
2961 oga_muxer_select="ogg_muxer"
2962 ogg_demuxer_select="dirac_parse"
2963 ogv_muxer_select="ogg_muxer"
2964 opus_muxer_select="ogg_muxer"
2965 psp_muxer_select="mov_muxer"
2966 rtp_demuxer_select="sdp_demuxer"
2967 rtp_muxer_select="golomb"
2968 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2969 rtsp_demuxer_select="http_protocol rtpdec"
2970 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2971 sap_demuxer_select="sdp_demuxer"
2972 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2973 sdp_demuxer_select="rtpdec"
2974 smoothstreaming_muxer_select="ismv_muxer"
2975 spdif_muxer_select="aac_parser"
2976 spx_muxer_select="ogg_muxer"
2977 swf_demuxer_suggest="zlib"
2978 tak_demuxer_select="tak_parser"
2979 tg2_muxer_select="mov_muxer"
2980 tgp_muxer_select="mov_muxer"
2981 vobsub_demuxer_select="mpegps_demuxer"
2982 w64_demuxer_select="wav_demuxer"
2983 w64_muxer_select="wav_muxer"
2984 wav_demuxer_select="riffdec"
2985 wav_muxer_select="riffenc"
2986 webm_muxer_select="iso_media riffenc"
2987 webm_dash_manifest_demuxer_select="matroska_demuxer"
2988 wtv_demuxer_select="mpegts_demuxer riffdec"
2989 wtv_muxer_select="mpegts_muxer riffenc"
2990 xmv_demuxer_select="riffdec"
2991 xwma_demuxer_select="riffdec"
2992
2993 # indevs / outdevs
2994 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2995 alsa_outdev_deps="alsa_asoundlib_h"
2996 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2997 avfoundation_indev_select="avfoundation"
2998 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2999 caca_outdev_deps="libcaca"
3000 decklink_indev_deps="decklink pthreads"
3001 decklink_indev_extralibs="-lstdc++"
3002 decklink_outdev_deps="decklink pthreads"
3003 decklink_outdev_extralibs="-lstdc++"
3004 dshow_indev_deps="IBaseFilter"
3005 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3006 dv1394_indev_deps="dv1394"
3007 dv1394_indev_select="dv_demuxer"
3008 fbdev_indev_deps="linux_fb_h"
3009 fbdev_outdev_deps="linux_fb_h"
3010 gdigrab_indev_deps="CreateDIBSection"
3011 gdigrab_indev_extralibs="-lgdi32"
3012 gdigrab_indev_select="bmp_decoder"
3013 iec61883_indev_deps="libiec61883"
3014 jack_indev_deps="jack_jack_h"
3015 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3016 lavfi_indev_deps="avfilter"
3017 libcdio_indev_deps="libcdio"
3018 libdc1394_indev_deps="libdc1394"
3019 libv4l2_indev_deps="libv4l2"
3020 openal_indev_deps="openal"
3021 opengl_outdev_deps="opengl"
3022 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3023 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3024 pulse_indev_deps="libpulse"
3025 pulse_outdev_deps="libpulse"
3026 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3027 qtkit_indev_select="qtkit"
3028 sdl2_outdev_deps="sdl2"
3029 sndio_indev_deps="sndio_h"
3030 sndio_outdev_deps="sndio_h"
3031 v4l_indev_deps="linux_videodev_h"
3032 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3033 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3034 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3035 vfwcap_indev_extralibs="-lavicap32"
3036 x11grab_indev_deps="x11grab"
3037 x11grab_xcb_indev_deps="libxcb"
3038 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3039 xv_outdev_extralibs="-lXv -lX11 -lXext"
3040
3041 # protocols
3042 async_protocol_deps="threads"
3043 bluray_protocol_deps="libbluray"
3044 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3045 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3046 ffrtmpcrypt_protocol_select="tcp_protocol"
3047 ffrtmphttp_protocol_deps="!librtmp_protocol"
3048 ffrtmphttp_protocol_select="http_protocol"
3049 ftp_protocol_select="tcp_protocol"
3050 gopher_protocol_select="network"
3051 http_protocol_select="tcp_protocol"
3052 httpproxy_protocol_select="tcp_protocol"
3053 https_protocol_select="tls_protocol"
3054 icecast_protocol_select="http_protocol"
3055 librtmp_protocol_deps="librtmp"
3056 librtmpe_protocol_deps="librtmp"
3057 librtmps_protocol_deps="librtmp"
3058 librtmpt_protocol_deps="librtmp"
3059 librtmpte_protocol_deps="librtmp"
3060 libsmbclient_protocol_deps="libsmbclient gplv3"
3061 libssh_protocol_deps="libssh"
3062 mmsh_protocol_select="http_protocol"
3063 mmst_protocol_select="network"
3064 rtmp_protocol_deps="!librtmp_protocol"
3065 rtmp_protocol_select="tcp_protocol"
3066 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3067 rtmps_protocol_deps="!librtmp_protocol"
3068 rtmps_protocol_select="tls_protocol"
3069 rtmpt_protocol_select="ffrtmphttp_protocol"
3070 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3071 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3072 rtp_protocol_select="udp_protocol"
3073 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3074 sctp_protocol_select="network"
3075 srtp_protocol_select="rtp_protocol srtp"
3076 tcp_protocol_select="network"
3077 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3078 tls_gnutls_protocol_select="tcp_protocol"
3079 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3080 tls_openssl_protocol_select="tcp_protocol"
3081 tls_schannel_protocol_deps="schannel"
3082 tls_schannel_protocol_select="tcp_protocol"
3083 tls_securetransport_protocol_deps="securetransport"
3084 tls_securetransport_protocol_select="tcp_protocol"
3085 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3086 udp_protocol_select="network"
3087 udplite_protocol_select="network"
3088 unix_protocol_deps="sys_un_h"
3089 unix_protocol_select="network"
3090
3091 # filters
3092 afftfilt_filter_deps="avcodec"
3093 afftfilt_filter_select="fft"
3094 amovie_filter_deps="avcodec avformat"
3095 aresample_filter_deps="swresample"
3096 ass_filter_deps="libass"
3097 asyncts_filter_deps="avresample"
3098 atempo_filter_deps="avcodec"
3099 atempo_filter_select="rdft"
3100 azmq_filter_deps="libzmq"
3101 blackframe_filter_deps="gpl"
3102 boxblur_filter_deps="gpl"
3103 bs2b_filter_deps="libbs2b"
3104 colormatrix_filter_deps="gpl"
3105 cover_rect_filter_deps="avcodec avformat gpl"
3106 cropdetect_filter_deps="gpl"
3107 deinterlace_qsv_filter_deps="libmfx"
3108 deinterlace_vaapi_filter_deps="vaapi"
3109 delogo_filter_deps="gpl"
3110 deshake_filter_select="pixelutils"
3111 drawtext_filter_deps="libfreetype"
3112 eq_filter_deps="gpl"
3113 fftfilt_filter_deps="avcodec"
3114 fftfilt_filter_select="rdft"
3115 find_rect_filter_deps="avcodec avformat gpl"
3116 firequalizer_filter_deps="avcodec"
3117 firequalizer_filter_select="rdft"
3118 flite_filter_deps="libflite"
3119 framerate_filter_select="pixelutils"
3120 frei0r_filter_deps="frei0r dlopen"
3121 frei0r_src_filter_deps="frei0r dlopen"
3122 fspp_filter_deps="gpl"
3123 geq_filter_deps="gpl"
3124 histeq_filter_deps="gpl"
3125 hqdn3d_filter_deps="gpl"
3126 interlace_filter_deps="gpl"
3127 kerndeint_filter_deps="gpl"
3128 ladspa_filter_deps="ladspa dlopen"
3129 mcdeint_filter_deps="avcodec gpl"
3130 movie_filter_deps="avcodec avformat"
3131 mpdecimate_filter_deps="gpl"
3132 mpdecimate_filter_select="pixelutils"
3133 mptestsrc_filter_deps="gpl"
3134 negate_filter_deps="lut_filter"
3135 nnedi_filter_deps="gpl"
3136 ocr_filter_deps="libtesseract"
3137 ocv_filter_deps="libopencv"
3138 owdenoise_filter_deps="gpl"
3139 pan_filter_deps="swresample"
3140 perspective_filter_deps="gpl"
3141 phase_filter_deps="gpl"
3142 pp7_filter_deps="gpl"
3143 pp_filter_deps="gpl postproc"
3144 pullup_filter_deps="gpl"
3145 removelogo_filter_deps="avcodec avformat swscale"
3146 repeatfields_filter_deps="gpl"
3147 resample_filter_deps="avresample"
3148 rubberband_filter_deps="librubberband"
3149 sab_filter_deps="gpl swscale"
3150 scale2ref_filter_deps="swscale"
3151 scale_filter_deps="swscale"
3152 scale_qsv_filter_deps="libmfx"
3153 select_filter_select="pixelutils"
3154 showcqt_filter_deps="avcodec avformat swscale"
3155 showcqt_filter_select="fft"
3156 showfreqs_filter_deps="avcodec"
3157 showfreqs_filter_select="fft"
3158 showspectrum_filter_deps="avcodec"
3159 showspectrum_filter_select="fft"
3160 showspectrumpic_filter_deps="avcodec"
3161 showspectrumpic_filter_select="fft"
3162 smartblur_filter_deps="gpl swscale"
3163 sofalizer_filter_deps="netcdf avcodec"
3164 sofalizer_filter_select="fft"
3165 spectrumsynth_filter_deps="avcodec"
3166 spectrumsynth_filter_select="fft"
3167 spp_filter_deps="gpl avcodec"
3168 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3169 stereo3d_filter_deps="gpl"
3170 subtitles_filter_deps="avformat avcodec libass"
3171 super2xsai_filter_deps="gpl"
3172 pixfmts_super2xsai_test_deps="super2xsai_filter"
3173 tinterlace_filter_deps="gpl"
3174 tinterlace_merge_test_deps="tinterlace_filter"
3175 tinterlace_pad_test_deps="tinterlace_filter"
3176 uspp_filter_deps="gpl avcodec"
3177 vaguedenoiser_filter_deps="gpl"
3178 vidstabdetect_filter_deps="libvidstab"
3179 vidstabtransform_filter_deps="libvidstab"
3180 zmq_filter_deps="libzmq"
3181 zoompan_filter_deps="swscale"
3182 zscale_filter_deps="libzimg"
3183 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3184
3185 # examples
3186 avio_dir_cmd_deps="avformat avutil"
3187 avio_reading_deps="avformat avcodec avutil"
3188 decoding_encoding_example_deps="avcodec avformat avutil"
3189 demuxing_decoding_example_deps="avcodec avformat avutil"
3190 extract_mvs_example_deps="avcodec avformat avutil"
3191 filter_audio_example_deps="avfilter avutil"
3192 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3193 filtering_video_example_deps="avfilter avcodec avformat avutil"
3194 http_multiclient_example_deps="avformat avutil fork"
3195 metadata_example_deps="avformat avutil"
3196 muxing_example_deps="avcodec avformat avutil swscale"
3197 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3198 remuxing_example_deps="avcodec avformat avutil"
3199 resampling_audio_example_deps="avutil swresample"
3200 scaling_video_example_deps="avutil swscale"
3201 transcode_aac_example_deps="avcodec avformat swresample"
3202 transcoding_example_deps="avfilter avcodec avformat avutil"
3203
3204 # libraries, in linking order
3205 avcodec_deps="avutil"
3206 avdevice_deps="avformat avcodec avutil"
3207 avfilter_deps="avutil"
3208 avformat_deps="avcodec avutil"
3209 avresample_deps="avutil"
3210 postproc_deps="avutil gpl"
3211 swresample_deps="avutil"
3212 swscale_deps="avutil"
3213
3214 # programs
3215 ffmpeg_deps="avcodec avfilter avformat swresample"
3216 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3217                null_filter
3218                trim_filter"
3219 ffplay_deps="avcodec avformat swscale swresample sdl2"
3220 ffplay_libs='$sdl2_libs'
3221 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3222 ffprobe_deps="avcodec avformat"
3223 ffserver_deps="avformat fork sarestart"
3224 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3225
3226 # documentation
3227 podpages_deps="perl"
3228 manpages_deps="perl pod2man"
3229 htmlpages_deps="perl"
3230 htmlpages_deps_any="makeinfo_html texi2html"
3231 txtpages_deps="perl makeinfo"
3232 doc_deps_any="manpages htmlpages podpages txtpages"
3233
3234 # default parameters
3235
3236 logfile="config.log"
3237
3238 # installation paths
3239 prefix_default="/usr/local"
3240 bindir_default='${prefix}/bin'
3241 datadir_default='${prefix}/share/ffmpeg'
3242 docdir_default='${prefix}/share/doc/ffmpeg'
3243 incdir_default='${prefix}/include'
3244 libdir_default='${prefix}/lib'
3245 mandir_default='${prefix}/share/man'
3246
3247 # toolchain
3248 ar_default="ar"
3249 cc_default="gcc"
3250 cxx_default="g++"
3251 host_cc_default="gcc"
3252 cp_f="cp -f"
3253 doxygen_default="doxygen"
3254 install="install"
3255 ln_s_default="ln -s -f"
3256 nm_default="nm -g"
3257 objformat="elf"
3258 pkg_config_default=pkg-config
3259 ranlib_default="ranlib"
3260 strip_default="strip"
3261 version_script='--version-script'
3262 yasmexe_default="yasm"
3263 windres_default="windres"
3264
3265 # OS
3266 target_os_default=$(tolower $(uname -s))
3267 host_os=$target_os_default
3268
3269 # machine
3270 if test "$target_os_default" = aix; then
3271     arch_default=$(uname -p)
3272     strip_default="strip -X32_64"
3273 else
3274     arch_default=$(uname -m)
3275 fi
3276 cpu="generic"
3277 intrinsics="none"
3278
3279 # configurable options
3280 enable $PROGRAM_LIST
3281 enable $DOCUMENT_LIST
3282 enable $EXAMPLE_LIST
3283 enable $(filter_out avresample $LIBRARY_LIST)
3284 enable stripping
3285
3286 enable asm
3287 enable debug
3288 enable doc
3289 enable faan faandct faanidct
3290 enable optimizations
3291 enable runtime_cpudetect
3292 enable safe_bitstream_reader
3293 enable static
3294 enable swscale_alpha
3295 enable valgrind_backtrace
3296
3297 sws_max_filter_size_default=256
3298 set_default sws_max_filter_size
3299
3300 # build settings
3301 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3302 LIBPREF="lib"
3303 LIBSUF=".a"
3304 FULLNAME='$(NAME)$(BUILDSUF)'
3305 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3306 SLIBPREF="lib"
3307 SLIBSUF=".so"
3308 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3309 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3310 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3311 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3312 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3313 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3314 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3315
3316 asflags_filter=echo
3317 cflags_filter=echo
3318 ldflags_filter=echo
3319
3320 AS_C='-c'
3321 AS_O='-o $@'
3322 CC_C='-c'
3323 CC_E='-E -o $@'
3324 CC_O='-o $@'
3325 CXX_C='-c'
3326 CXX_O='-o $@'
3327 OBJCC_C='-c'
3328 OBJCC_E='-E -o $@'
3329 OBJCC_O='-o $@'
3330 LD_O='-o $@'
3331 LD_LIB='-l%'
3332 LD_PATH='-L'
3333 HOSTCC_C='-c'
3334 HOSTCC_E='-E -o $@'
3335 HOSTCC_O='-o $@'
3336 HOSTLD_O='-o $@'
3337
3338 host_libs='-lm'
3339 host_cflags_filter=echo
3340 host_ldflags_filter=echo
3341
3342 target_path='$(CURDIR)'
3343
3344 # since the object filename is not given with the -MM flag, the compiler
3345 # is only able to print the basename, and we must add the path ourselves
3346 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3347 DEPFLAGS='-MM'
3348
3349 # find source path
3350 if test -f configure; then
3351     source_path=.
3352 else
3353     source_path=$(cd $(dirname "$0"); pwd)
3354     case "$source_path" in
3355         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3356     esac
3357     test -e "$source_path/config.h" &&
3358         die "Out of tree builds are impossible with config.h in source dir."
3359 fi
3360
3361 for v in "$@"; do
3362     r=${v#*=}
3363     l=${v%"$r"}
3364     r=$(sh_quote "$r")
3365     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3366 done
3367
3368 find_things(){
3369     thing=$1
3370     pattern=$2
3371     file=$source_path/$3
3372     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3373 }
3374
3375 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3376 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3377 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3378 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3379 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3380 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3381 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3382 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3383 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3384
3385 find_things_extern(){
3386     thing=$1
3387     pattern=$2
3388     file=$source_path/$3
3389     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3390 }
3391
3392 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3393 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3394
3395 ALL_COMPONENTS="
3396     $BSF_LIST
3397     $DECODER_LIST
3398     $DEMUXER_LIST
3399     $ENCODER_LIST
3400     $FILTER_LIST
3401     $HWACCEL_LIST
3402     $INDEV_LIST
3403     $MUXER_LIST
3404     $OUTDEV_LIST
3405     $PARSER_LIST
3406     $PROTOCOL_LIST
3407 "
3408
3409 for n in $COMPONENT_LIST; do
3410     v=$(toupper ${n%s})_LIST
3411     eval enable \$$v
3412     eval ${n}_if_any="\$$v"
3413 done
3414
3415 enable $ARCH_EXT_LIST
3416
3417 die_unknown(){
3418     echo "Unknown option \"$1\"."
3419     echo "See $0 --help for available options."
3420     exit 1
3421 }
3422
3423 print_in_columns() {
3424     cols=$(expr $ncols / 24)
3425     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3426 }
3427
3428 show_list() {
3429     suffix=_$1
3430     shift
3431     echo $* | sed s/$suffix//g | print_in_columns
3432     exit 0
3433 }
3434
3435 rand_list(){
3436     IFS=', '
3437     set -- $*
3438     unset IFS
3439     for thing; do
3440         comp=${thing%:*}
3441         prob=${thing#$comp}
3442         prob=${prob#:}
3443         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3444         echo "prob ${prob:-0.5}"
3445         printf '%s\n' $comp
3446     done
3447 }
3448
3449 do_random(){
3450     action=$1
3451     shift
3452     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3453     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3454 }
3455
3456 for opt do
3457     optval="${opt#*=}"
3458     case "$opt" in
3459         --extra-ldflags=*)
3460             add_ldflags $optval
3461         ;;
3462         --extra-ldexeflags=*)
3463             add_ldexeflags $optval
3464         ;;
3465         --extra-ldlibflags=*)
3466             add_ldlibflags $optval
3467         ;;
3468         --extra-libs=*)
3469             add_extralibs $optval
3470         ;;
3471         --disable-devices)
3472             disable $INDEV_LIST $OUTDEV_LIST
3473         ;;
3474         --enable-debug=*)
3475             debuglevel="$optval"
3476         ;;
3477         --disable-programs)
3478             disable $PROGRAM_LIST
3479         ;;
3480         --disable-everything)
3481             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3482         ;;
3483         --disable-all)
3484             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3485             disable $LIBRARY_LIST $PROGRAM_LIST doc
3486             enable avutil
3487         ;;
3488         --enable-random|--disable-random)
3489             action=${opt%%-random}
3490             do_random ${action#--} $COMPONENT_LIST
3491         ;;
3492         --enable-random=*|--disable-random=*)
3493             action=${opt%%-random=*}
3494             do_random ${action#--} $optval
3495         ;;
3496         --enable-*=*|--disable-*=*)
3497             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3498             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3499             eval list=\$$(toupper $thing)_LIST
3500             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3501             list=$(filter "$name" $list)
3502             [ "$list" = "" ] && warn "Option $opt did not match anything"
3503             $action $list
3504         ;;
3505         --enable-?*|--disable-?*)
3506             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3507             if is_in $option $COMPONENT_LIST; then
3508                 test $action = disable && action=unset
3509                 eval $action \$$(toupper ${option%s})_LIST
3510             elif is_in $option $CMDLINE_SELECT; then
3511                 $action $option
3512             else
3513                 die_unknown $opt
3514             fi
3515         ;;
3516         --list-*)
3517             NAME="${opt#--list-}"
3518             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3519             NAME=${NAME%s}
3520             eval show_list $NAME \$$(toupper $NAME)_LIST
3521         ;;
3522         --help|-h) show_help
3523         ;;
3524         --fatal-warnings) enable fatal_warnings
3525         ;;
3526         *)
3527             optname="${opt%%=*}"
3528             optname="${optname#--}"
3529             optname=$(echo "$optname" | sed 's/-/_/g')
3530             if is_in $optname $CMDLINE_SET; then
3531                 eval $optname='$optval'
3532             elif is_in $optname $CMDLINE_APPEND; then
3533                 append $optname "$optval"
3534             else
3535                 die_unknown $opt
3536             fi
3537         ;;
3538     esac
3539 done
3540
3541 for e in $env; do
3542     eval "export $e"
3543 done
3544
3545 # Mark specifically enabled, but normally autodetected libraries as requested.
3546 for lib in $AUTODETECT_LIBS; do
3547     enabled $lib && request $lib
3548 done
3549
3550 # Enable platform codecs by default.
3551 enable_weak audiotoolbox
3552
3553 # Enable hwaccels by default.
3554 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3555 enable_weak xlib
3556
3557 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3558
3559 disabled logging && logfile=/dev/null
3560
3561 # Disable all the library-specific components if the library itself
3562 # is disabled, see AVCODEC_LIST and following _LIST variables.
3563
3564 disable_components(){
3565     disabled ${1} && disable $(
3566         eval components="\$$(toupper ${1})_COMPONENTS"
3567         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3568     )
3569 }
3570
3571 map 'disable_components $v' $LIBRARY_LIST
3572
3573 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3574 set >> $logfile
3575
3576 test -n "$valgrind" && toolchain="valgrind-memcheck"
3577
3578 case "$toolchain" in
3579     *-asan)
3580         cc_default="${toolchain%-asan}"
3581         add_cflags  -fsanitize=address
3582         add_ldflags -fsanitize=address
3583     ;;
3584     *-msan)
3585         cc_default="${toolchain%-msan}"
3586         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3587         add_ldflags -fsanitize=memory
3588     ;;
3589     *-tsan)
3590         cc_default="${toolchain%-tsan}"
3591         add_cflags  -fsanitize=thread -fPIE
3592         add_ldflags -fsanitize=thread -pie
3593         case "$toolchain" in
3594             gcc-tsan)
3595                 add_cflags  -fPIC
3596                 add_ldflags -fPIC
3597                 ;;
3598         esac
3599     ;;
3600     *-usan)
3601         cc_default="${toolchain%-usan}"
3602         add_cflags  -fsanitize=undefined
3603         add_ldflags -fsanitize=undefined
3604     ;;
3605     valgrind-*)
3606         target_exec_default="valgrind"
3607         case "$toolchain" in
3608             valgrind-massif)
3609                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3610                 ;;
3611             valgrind-memcheck)
3612                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3613                 ;;
3614         esac
3615     ;;
3616     msvc)
3617         # Check whether the current MSVC version needs the C99 converter.
3618         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3619         # support enough of C99 to build ffmpeg. Default to the new
3620         # behaviour if the regexp was unable to match anything, since this
3621         # successfully parses the version number of existing supported
3622         # versions that require the converter (MSVC 2010 and 2012).
3623         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3624         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3625             cc_default="cl"
3626         else
3627             cc_default="c99wrap cl"
3628         fi
3629         ld_default="$source_path/compat/windows/mslink"
3630         nm_default="dumpbin -symbols"
3631         ar_default="lib"
3632         case "$arch" in
3633         arm*)
3634             as_default="armasm"
3635             ;;
3636         esac
3637         target_os_default="win32"
3638         # Use a relative path for TMPDIR. This makes sure all the
3639         # ffconf temp files are written with a relative path, avoiding
3640         # issues with msys/win32 path conversion for MSVC parameters
3641         # such as -Fo<file> or -out:<file>.
3642         TMPDIR=.
3643     ;;
3644     icl)
3645         cc_default="icl"
3646         ld_default="xilink"
3647         nm_default="dumpbin -symbols"
3648         ar_default="xilib"
3649         target_os_default="win32"
3650         TMPDIR=.
3651     ;;
3652     gcov)
3653         add_cflags  -fprofile-arcs -ftest-coverage
3654         add_ldflags -fprofile-arcs -ftest-coverage
3655     ;;
3656     llvm-cov)
3657         add_cflags -fprofile-arcs -ftest-coverage
3658         add_ldflags --coverage
3659     ;;
3660     hardened)
3661         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3662         add_cflags   -fno-strict-overflow -fstack-protector-all
3663         add_ldflags  -Wl,-z,relro -Wl,-z,now
3664         add_cflags   -fPIE
3665         add_ldexeflags -fPIE -pie
3666     ;;
3667     ?*)
3668         die "Unknown toolchain $toolchain"
3669     ;;
3670 esac
3671
3672 test -n "$cross_prefix" && enable cross_compile
3673
3674 if enabled cross_compile; then
3675     test -n "$arch" && test -n "$target_os" ||
3676         die "Must specify target arch and OS when cross-compiling"
3677 fi
3678
3679 ar_default="${cross_prefix}${ar_default}"
3680 cc_default="${cross_prefix}${cc_default}"
3681 cxx_default="${cross_prefix}${cxx_default}"
3682 nm_default="${cross_prefix}${nm_default}"
3683 pkg_config_default="${cross_prefix}${pkg_config_default}"
3684 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3685     ranlib_default="${cross_prefix}${ranlib_default} -D"
3686 else
3687     ranlib_default="${cross_prefix}${ranlib_default}"
3688 fi
3689 strip_default="${cross_prefix}${strip_default}"
3690 windres_default="${cross_prefix}${windres_default}"
3691
3692 sysinclude_default="${sysroot}/usr/include"
3693
3694 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3695     target_exec target_os yasmexe
3696 enabled cross_compile || host_cc_default=$cc
3697 set_default host_cc
3698
3699 pkg_config_fail_message=""
3700 if ! $pkg_config --version >/dev/null 2>&1; then
3701     warn "$pkg_config not found, library detection may fail."
3702     pkg_config=false
3703 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3704     pkg_config_fail_message="
3705 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3706 fi
3707
3708 if test $doxygen != $doxygen_default && \
3709   ! $doxygen --version >/dev/null 2>&1; then
3710     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3711 fi
3712
3713 exesuf() {
3714     case $1 in
3715         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3716     esac
3717 }
3718
3719 EXESUF=$(exesuf $target_os)
3720 HOSTEXESUF=$(exesuf $host_os)
3721
3722 # set temporary file name
3723 : ${TMPDIR:=$TEMPDIR}
3724 : ${TMPDIR:=$TMP}
3725 : ${TMPDIR:=/tmp}
3726
3727 if [ -n "$tempprefix" ] ; then
3728     mktemp(){
3729         echo $tempprefix.${HOSTNAME}.${UID}
3730     }
3731 elif ! check_cmd mktemp -u XXXXXX; then
3732     # simple replacement for missing mktemp
3733     # NOT SAFE FOR GENERAL USE
3734     mktemp(){
3735         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3736     }
3737 fi
3738
3739 tmpfile(){
3740     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3741         (set -C; exec > $tmp) 2>/dev/null ||
3742         die "Unable to create temporary file in $TMPDIR."
3743     append TMPFILES $tmp
3744     eval $1=$tmp
3745 }
3746
3747 trap 'rm -f -- $TMPFILES' EXIT
3748
3749 tmpfile TMPASM .asm
3750 tmpfile TMPC   .c
3751 tmpfile TMPCPP .cpp
3752 tmpfile TMPE   $EXESUF
3753 tmpfile TMPH   .h
3754 tmpfile TMPM   .m
3755 tmpfile TMPO   .o
3756 tmpfile TMPS   .S
3757 tmpfile TMPSH  .sh
3758 tmpfile TMPV   .ver
3759
3760 unset -f mktemp
3761
3762 chmod +x $TMPE
3763
3764 # make sure we can execute files in $TMPDIR
3765 cat > $TMPSH 2>> $logfile <<EOF
3766 #! /bin/sh
3767 EOF
3768 chmod +x $TMPSH >> $logfile 2>&1
3769 if ! $TMPSH >> $logfile 2>&1; then
3770     cat <<EOF
3771 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3772 variable to another directory and make sure that it is not mounted noexec.
3773 EOF
3774     die "Sanity test failed."
3775 fi
3776
3777 armasm_flags(){
3778     for flag; do
3779         case $flag in
3780             # Filter out MSVC cl.exe options from cflags that shouldn't
3781             # be passed to gas-preprocessor
3782             -M[TD]*)                                            ;;
3783             *)                  echo $flag                      ;;
3784         esac
3785    done
3786 }
3787
3788 ccc_flags(){
3789     for flag; do
3790         case $flag in
3791             -std=c99)           echo -c99                       ;;
3792             -mcpu=*)            echo -arch ${flag#*=}           ;;
3793             -mieee)             echo -ieee                      ;;
3794             -O*|-fast)          echo $flag                      ;;
3795             -fno-math-errno)    echo -assume nomath_errno       ;;
3796             -g)                 echo -g3                        ;;
3797             -Wall)              echo -msg_enable level2         ;;
3798             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3799             -Wl,*)              echo $flag                      ;;
3800             -f*|-W*)                                            ;;
3801             *)                  echo $flag                      ;;
3802         esac
3803    done
3804 }
3805
3806 cparser_flags(){
3807     for flag; do
3808         case $flag in
3809             -Wno-switch)             echo -Wno-switch-enum ;;
3810             -Wno-format-zero-length) ;;
3811             -Wdisabled-optimization) ;;
3812             -Wno-pointer-sign)       echo -Wno-other ;;
3813             *)                       echo $flag ;;
3814         esac
3815     done
3816 }
3817
3818 msvc_common_flags(){
3819     for flag; do
3820         case $flag in
3821             # In addition to specifying certain flags under the compiler
3822             # specific filters, they must be specified here as well or else the
3823             # generic catch all at the bottom will print the original flag.
3824             -Wall)                ;;
3825             -std=c99)             ;;
3826             # Common flags
3827             -fomit-frame-pointer) ;;
3828             -g)                   echo -Z7 ;;
3829             -fno-math-errno)      ;;
3830             -fno-common)          ;;
3831             -fno-signed-zeros)    ;;
3832             -fPIC)                ;;
3833             -mthumb)              ;;
3834             -march=*)             ;;
3835             -lz)                  echo zlib.lib ;;
3836             -lavifil32)           echo vfw32.lib ;;
3837             -lavicap32)           echo vfw32.lib user32.lib ;;
3838             -lx264)               echo libx264.lib ;;
3839             -l*)                  echo ${flag#-l}.lib ;;
3840             -LARGEADDRESSAWARE)   echo $flag ;;
3841             -L*)                  echo -libpath:${flag#-L} ;;
3842             *)                    echo $flag ;;
3843         esac
3844     done
3845 }
3846
3847 msvc_flags(){
3848     msvc_common_flags "$@"
3849     for flag; do
3850         case $flag in
3851             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3852                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3853                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3854                                        -wd4307 \
3855                                        -wd4273 -wd4554 -wd4701 ;;
3856         esac
3857     done
3858 }
3859
3860 icl_flags(){
3861     msvc_common_flags "$@"
3862     for flag; do
3863         case $flag in
3864             # Despite what Intel's documentation says -Wall, which is supported
3865             # on Windows, does enable remarks so disable them here.
3866             -Wall)                echo $flag -Qdiag-disable:remark ;;
3867             -std=c99)             echo -Qstd=c99 ;;
3868             -flto)                echo -ipo ;;
3869         esac
3870     done
3871 }
3872
3873 icc_flags(){
3874     for flag; do
3875         case $flag in
3876             -flto)                echo -ipo ;;
3877             *)                    echo $flag ;;
3878         esac
3879     done
3880 }
3881
3882 pgi_flags(){
3883     for flag; do
3884         case $flag in
3885             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3886             -fomit-frame-pointer) echo -Mnoframe ;;
3887             -g)                   echo -gopt ;;
3888             *)                    echo $flag ;;
3889         esac
3890     done
3891 }
3892
3893 suncc_flags(){
3894     for flag; do
3895         case $flag in
3896             -march=*|-mcpu=*)
3897                 case "${flag#*=}" in
3898                     native)                   echo -xtarget=native       ;;
3899                     v9|niagara)               echo -xarch=sparc          ;;
3900                     ultrasparc)               echo -xarch=sparcvis       ;;
3901                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3902                     i586|pentium)             echo -xchip=pentium        ;;
3903                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3904                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3905                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3906                     pentium4*)          echo -xtarget=pentium4           ;;
3907                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3908                     *-sse3)             echo -xarch=sse3                 ;;
3909                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3910                     bonnell)                   echo -xarch=ssse3         ;;
3911                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3912                     westmere)                  echo -xtarget=westmere    ;;
3913                     silvermont)                echo -xarch=sse4_2        ;;
3914                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3915                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3916                                                echo -xarch=avx           ;;
3917                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3918                     btver1)                    echo -xarch=amdsse4a      ;;
3919                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3920                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3921                     k8|opteron|athlon64|athlon-fx)
3922                                                echo -xarch=sse2a         ;;
3923                     athlon*)                   echo -xarch=pentium_proa  ;;
3924                 esac
3925                 ;;
3926             -std=c99)             echo -xc99              ;;
3927             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3928             -fPIC)                echo -KPIC -xcode=pic32 ;;
3929             -W*,*)                echo $flag              ;;
3930             -f*-*|-W*|-mimpure-text)                      ;;
3931             -shared)              echo -G                 ;;
3932             *)                    echo $flag              ;;
3933         esac
3934     done
3935 }
3936
3937 tms470_flags(){
3938     for flag; do
3939         case $flag in
3940             -march=*|-mcpu=*)
3941                 case "${flag#*=}" in
3942                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3943                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3944                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3945                     armv6*|arm11*)          echo -mv=6   ;;
3946                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3947                                             echo -mv=5e  ;;
3948                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3949                 esac
3950                 ;;
3951             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3952             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3953             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3954             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3955             -msoft-float)   echo --float_support=vfplib       ;;
3956             -O[0-3]|-mf=*)  echo $flag                        ;;
3957             -g)             echo -g -mn                       ;;
3958             -pds=*)         echo $flag                        ;;
3959             -D*|-I*)        echo $flag                        ;;
3960             --gcc|--abi=*)  echo $flag                        ;;
3961             -me)            echo $flag                        ;;
3962         esac
3963     done
3964 }
3965
3966 probe_cc(){
3967     pfx=$1
3968     _cc=$2
3969     first=$3
3970
3971     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3972     unset _ld_o _ldflags _ld_lib _ld_path
3973     unset _depflags _DEPCMD _DEPFLAGS
3974     _flags_filter=echo
3975
3976     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3977         true # no-op to avoid reading stdin in following checks
3978     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3979         _type=llvm_gcc
3980         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3981         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3982         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3983         _cflags_speed='-O3'
3984         _cflags_size='-Os'
3985     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3986         _type=gcc
3987         gcc_version=$($_cc --version | head -n1)
3988         gcc_basever=$($_cc -dumpversion)
3989         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3990         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3991         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3992         case $gcc_basever in
3993             2) ;;
3994             2.*) ;;
3995             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3996         esac
3997         if [ "$first" = true ]; then
3998             case $gcc_basever in
3999                 4.2*)
4000                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4001             esac
4002         fi
4003         _cflags_speed='-O3'
4004         _cflags_size='-Os'
4005     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4006         _type=icc
4007         _ident=$($_cc --version | head -n1)
4008         _depflags='-MMD'
4009         _cflags_speed='-O3'
4010         _cflags_size='-Os'
4011         _cflags_noopt='-O1'
4012         _flags_filter=icc_flags
4013     elif $_cc -v 2>&1 | grep -q xlc; then
4014         _type=xlc
4015         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4016         _cflags_speed='-O5'
4017         _cflags_size='-O5 -qcompact'
4018     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4019         _type=ccc
4020         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4021         _DEPFLAGS='-M'
4022         _cflags_speed='-fast'
4023         _cflags_size='-O1'
4024         _flags_filter=ccc_flags
4025     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4026         test -d "$sysroot" || die "No valid sysroot specified."
4027         _type=armcc
4028         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4029         armcc_conf="$PWD/armcc.conf"
4030         $_cc --arm_linux_configure                 \
4031              --arm_linux_config_file="$armcc_conf" \
4032              --configure_sysroot="$sysroot"        \
4033              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4034              die "Error creating armcc configuration file."
4035         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4036         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4037         as_default="${cross_prefix}gcc"
4038         _depflags='-MMD'
4039         _cflags_speed='-O3'
4040         _cflags_size='-Os'
4041     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4042         _type=tms470
4043         _ident=$($_cc -version | head -n1 | tr -s ' ')
4044         _flags='--gcc --abi=eabi -me'
4045         _cc_e='-ppl -fe=$@'
4046         _cc_o='-fe=$@'
4047         _depflags='-ppa -ppd=$(@:.o=.d)'
4048         _cflags_speed='-O3 -mf=5'
4049         _cflags_size='-O3 -mf=2'
4050         _flags_filter=tms470_flags
4051     elif $_cc -v 2>&1 | grep -q clang; then
4052         _type=clang
4053         _ident=$($_cc --version 2>/dev/null | head -n1)
4054         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4055         _cflags_speed='-O3'
4056         _cflags_size='-Os'
4057     elif $_cc -V 2>&1 | grep -q Sun; then
4058         _type=suncc
4059         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4060         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4061         _DEPFLAGS='-xM1 -xc99'
4062         _ldflags='-std=c99'
4063         _cflags_speed='-O5'
4064         _cflags_size='-O5 -xspace'
4065         _flags_filter=suncc_flags
4066     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4067         _type=pathscale
4068         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4069         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4070         _cflags_speed='-O2'
4071         _cflags_size='-Os'
4072         _flags_filter='filter_out -Wdisabled-optimization'
4073     elif $_cc -v 2>&1 | grep -q Open64; then
4074         _type=open64
4075         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4076         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4077         _cflags_speed='-O2'
4078         _cflags_size='-Os'
4079         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4080     elif $_cc -V 2>&1 | grep -q Portland; then
4081         _type=pgi
4082         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4083         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4084         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4085         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4086         _cflags_noopt="-O"
4087         _flags_filter=pgi_flags
4088     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4089         _type=armasm
4090         _ident=$($_cc | head -n1)
4091         # 4509: "This form of conditional instruction is deprecated"
4092         _flags="-nologo -ignore 4509"
4093         _flags_filter=armasm_flags
4094     elif $_cc 2>&1 | grep -q Intel; then
4095         _type=icl
4096         _ident=$($_cc 2>&1 | head -n1)
4097         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4098         # Not only is O3 broken on 13.x+ but it is&