swresample/resample: remove swri_resample function
[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: $condition"
1200 #endif
1201 EOF
1202 }
1203
1204 test_cflags_cpp(){
1205     log test_cflags_cpp "$@"
1206     flags=$1
1207     condition=$2
1208     shift 2
1209     set -- $($cflags_filter "$flags")
1210     check_cpp "$@" <<EOF
1211 #if !($condition)
1212 #error "unsatisfied condition: $condition"
1213 #endif
1214 EOF
1215 }
1216
1217 check_lib(){
1218     log check_lib "$@"
1219     header="$1"
1220     func="$2"
1221     shift 2
1222     check_header $header && check_func $func "$@" && add_extralibs "$@"
1223 }
1224
1225 check_lib2(){
1226     log check_lib2 "$@"
1227     headers="$1"
1228     funcs="$2"
1229     shift 2
1230     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1231 }
1232
1233 check_lib_cpp(){
1234     log check_lib_cpp "$@"
1235     headers="$1"
1236     classes="$2"
1237     shift 2
1238     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1239 }
1240
1241 check_pkg_config(){
1242     log check_pkg_config "$@"
1243     pkgandversion="$1"
1244     pkg="${1%% *}"
1245     headers="$2"
1246     funcs="$3"
1247     shift 3
1248     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1249     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1250     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1251     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1252         set_safe "${pkg}_cflags" $pkg_cflags   &&
1253         set_safe "${pkg}_libs"   $pkg_libs
1254 }
1255
1256 check_exec(){
1257     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1258 }
1259
1260 check_exec_crash(){
1261     code=$(cat)
1262
1263     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1264     # are safe but may not be available everywhere.  Thus we use
1265     # raise(SIGTERM) instead.  The check is run in a subshell so we
1266     # can redirect the "Terminated" message from the shell.  SIGBUS
1267     # is not defined by standard C so it is used conditionally.
1268
1269     (check_exec "$@") >> $logfile 2>&1 <<EOF
1270 #include <signal.h>
1271 static void sighandler(int sig){
1272     raise(SIGTERM);
1273 }
1274 int foo(void){
1275     $code
1276 }
1277 int (*func_ptr)(void) = foo;
1278 int main(void){
1279     signal(SIGILL, sighandler);
1280     signal(SIGFPE, sighandler);
1281     signal(SIGSEGV, sighandler);
1282 #ifdef SIGBUS
1283     signal(SIGBUS, sighandler);
1284 #endif
1285     return func_ptr();
1286 }
1287 EOF
1288 }
1289
1290 check_type(){
1291     log check_type "$@"
1292     headers=$1
1293     type=$2
1294     shift 2
1295     disable_safe "$type"
1296     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1297 }
1298
1299 check_struct(){
1300     log check_struct "$@"
1301     headers=$1
1302     struct=$2
1303     member=$3
1304     shift 3
1305     disable_safe "${struct}_${member}"
1306     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1307         enable_safe "${struct}_${member}"
1308 }
1309
1310 check_builtin(){
1311     log check_builtin "$@"
1312     name=$1
1313     headers=$2
1314     builtin=$3
1315     shift 3
1316     disable "$name"
1317     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1318 }
1319
1320 check_compile_assert(){
1321     log check_compile_assert "$@"
1322     name=$1
1323     headers=$2
1324     condition=$3
1325     shift 3
1326     disable "$name"
1327     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1328 }
1329
1330 require(){
1331     name="$1"
1332     header="$2"
1333     func="$3"
1334     shift 3
1335     check_lib $header $func "$@" || die "ERROR: $name not found"
1336 }
1337
1338 require2(){
1339     name="$1"
1340     headers="$2"
1341     func="$3"
1342     shift 3
1343     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1344 }
1345
1346 require_cpp(){
1347     name="$1"
1348     headers="$2"
1349     classes="$3"
1350     shift 3
1351     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1352 }
1353
1354 use_pkg_config(){
1355     pkg="$1"
1356     check_pkg_config "$@" || return 1
1357     add_cflags    $(get_safe "${pkg}_cflags")
1358     add_extralibs $(get_safe "${pkg}_libs")
1359 }
1360
1361 require_pkg_config(){
1362     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1363 }
1364
1365 require_libfreetype(){
1366     log require_libfreetype "$@"
1367     pkg="freetype2"
1368     check_cmd $pkg_config --exists --print-errors $pkg \
1369       || die "ERROR: $pkg not found"
1370     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1371     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1372     {
1373         echo "#include <ft2build.h>"
1374         echo "#include FT_FREETYPE_H"
1375         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1376         echo "int main(void) { return 0; }"
1377     } | check_ld "cc" $pkg_cflags $pkg_libs \
1378       && set_safe "${pkg}_cflags" $pkg_cflags \
1379       && set_safe "${pkg}_libs"   $pkg_libs \
1380       || die "ERROR: $pkg not found"
1381     add_cflags    $(get_safe "${pkg}_cflags")
1382     add_extralibs $(get_safe "${pkg}_libs")
1383 }
1384
1385 hostcc_e(){
1386     eval printf '%s\\n' $HOSTCC_E
1387 }
1388
1389 hostcc_o(){
1390     eval printf '%s\\n' $HOSTCC_O
1391 }
1392
1393 check_host_cc(){
1394     log check_host_cc "$@"
1395     cat > $TMPC
1396     log_file $TMPC
1397     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1398 }
1399
1400 check_host_cpp(){
1401     log check_host_cpp "$@"
1402     cat > $TMPC
1403     log_file $TMPC
1404     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1405 }
1406
1407 check_host_cppflags(){
1408     log check_host_cppflags "$@"
1409     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1410 int x;
1411 EOF
1412 }
1413
1414 check_host_cflags(){
1415     log check_host_cflags "$@"
1416     set -- $($host_cflags_filter "$@")
1417     check_host_cc "$@" <<EOF && append host_cflags "$@"
1418 int x;
1419 EOF
1420 }
1421
1422 check_host_cpp_condition(){
1423     log check_host_cpp_condition "$@"
1424     header=$1
1425     condition=$2
1426     shift 2
1427     check_host_cpp "$@" <<EOF
1428 #include <$header>
1429 #if !($condition)
1430 #error "unsatisfied condition: $condition"
1431 #endif
1432 EOF
1433 }
1434
1435 cp_if_changed(){
1436     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1437     mkdir -p "$(dirname $2)"
1438     $cp_f "$1" "$2"
1439 }
1440
1441 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1442 # system-dependent things.
1443
1444 AVCODEC_COMPONENTS="
1445     bsfs
1446     decoders
1447     encoders
1448     hwaccels
1449     parsers
1450 "
1451
1452 AVDEVICE_COMPONENTS="
1453     indevs
1454     outdevs
1455 "
1456 AVFILTER_COMPONENTS="
1457     filters
1458 "
1459 AVFORMAT_COMPONENTS="
1460     demuxers
1461     muxers
1462     protocols
1463 "
1464
1465 AVRESAMPLE_COMPONENTS=""
1466 AVUTIL_COMPONENTS=""
1467
1468 COMPONENT_LIST="
1469     $AVCODEC_COMPONENTS
1470     $AVDEVICE_COMPONENTS
1471     $AVFILTER_COMPONENTS
1472     $AVFORMAT_COMPONENTS
1473     $AVRESAMPLE_COMPONENTS
1474     $AVUTIL_COMPONENTS
1475 "
1476
1477 EXAMPLE_LIST="
1478     avio_dir_cmd_example
1479     avio_reading_example
1480     decoding_encoding_example
1481     demuxing_decoding_example
1482     extract_mvs_example
1483     filter_audio_example
1484     filtering_audio_example
1485     filtering_video_example
1486     http_multiclient_example
1487     metadata_example
1488     muxing_example
1489     qsvdec_example
1490     remuxing_example
1491     resampling_audio_example
1492     scaling_video_example
1493     transcode_aac_example
1494     transcoding_example
1495 "
1496 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1497     bzlib
1498     iconv
1499     libxcb
1500     libxcb_shm
1501     libxcb_shape
1502     libxcb_xfixes
1503     lzma
1504     schannel
1505     sdl
1506     sdl2
1507     securetransport
1508     xlib
1509     zlib
1510 "
1511
1512 EXTERNAL_LIBRARY_LIST="
1513     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1514     avisynth
1515     chromaprint
1516     crystalhd
1517     decklink
1518     frei0r
1519     gcrypt
1520     gmp
1521     gnutls
1522     jni
1523     ladspa
1524     libass
1525     libbluray
1526     libbs2b
1527     libcaca
1528     libcdio
1529     libcelt
1530     libdc1394
1531     libfdk_aac
1532     libflite
1533     libfontconfig
1534     libfreetype
1535     libfribidi
1536     libgme
1537     libgsm
1538     libiec61883
1539     libilbc
1540     libkvazaar
1541     libmodplug
1542     libmp3lame
1543     libnut
1544     libopencore_amrnb
1545     libopencore_amrwb
1546     libopencv
1547     libopenh264
1548     libopenjpeg
1549     libopenmpt
1550     libopus
1551     libpulse
1552     librtmp
1553     librubberband
1554     libschroedinger
1555     libshine
1556     libsmbclient
1557     libsnappy
1558     libsoxr
1559     libspeex
1560     libssh
1561     libtesseract
1562     libtheora
1563     libtwolame
1564     libv4l2
1565     libvidstab
1566     libvo_amrwbenc
1567     libvorbis
1568     libvpx
1569     libwavpack
1570     libwebp
1571     libx264
1572     libx265
1573     libxavs
1574     libxvid
1575     libzimg
1576     libzmq
1577     libzvbi
1578     mediacodec
1579     netcdf
1580     openal
1581     opencl
1582     opengl
1583     openssl
1584     videotoolbox
1585     x11grab
1586 "
1587 HWACCEL_AUTODETECT_LIBRARY_LIST="
1588     audiotoolbox
1589     cuda
1590     cuvid
1591     d3d11va
1592     dxva2
1593     nvenc
1594     vaapi
1595     vda
1596     vdpau
1597     videotoolbox_hwaccel
1598     xvmc
1599 "
1600
1601 HWACCEL_LIBRARY_LIST="
1602     $HWACCEL_AUTODETECT_LIBRARY_LIST
1603     libmfx
1604     libnpp
1605     mmal
1606     omx
1607 "
1608
1609 DOCUMENT_LIST="
1610     doc
1611     htmlpages
1612     manpages
1613     podpages
1614     txtpages
1615 "
1616
1617 FEATURE_LIST="
1618     ftrapv
1619     gray
1620     hardcoded_tables
1621     omx_rpi
1622     runtime_cpudetect
1623     safe_bitstream_reader
1624     shared
1625     small
1626     static
1627     swscale_alpha
1628 "
1629
1630 LIBRARY_LIST="
1631     avcodec
1632     avdevice
1633     avfilter
1634     avformat
1635     avresample
1636     avutil
1637     postproc
1638     swresample
1639     swscale
1640 "
1641
1642 LICENSE_LIST="
1643     gpl
1644     nonfree
1645     version3
1646 "
1647
1648 PROGRAM_LIST="
1649     ffplay
1650     ffprobe
1651     ffserver
1652     ffmpeg
1653 "
1654
1655 SUBSYSTEM_LIST="
1656     dct
1657     dwt
1658     error_resilience
1659     faan
1660     fast_unaligned
1661     fft
1662     lsp
1663     lzo
1664     mdct
1665     pixelutils
1666     network
1667     rdft
1668 "
1669
1670 CONFIG_LIST="
1671     $COMPONENT_LIST
1672     $DOCUMENT_LIST
1673     $EXAMPLE_LIST
1674     $EXTERNAL_LIBRARY_LIST
1675     $HWACCEL_LIBRARY_LIST
1676     $FEATURE_LIST
1677     $LICENSE_LIST
1678     $LIBRARY_LIST
1679     $PROGRAM_LIST
1680     $SUBSYSTEM_LIST
1681     fontconfig
1682     memalign_hack
1683     memory_poisoning
1684     neon_clobber_test
1685     pic
1686     pod2man
1687     raise_major
1688     thumb
1689     valgrind_backtrace
1690     xmm_clobber_test
1691 "
1692
1693 THREADS_LIST="
1694     pthreads
1695     os2threads
1696     w32threads
1697 "
1698
1699 ATOMICS_LIST="
1700     atomics_gcc
1701     atomics_suncc
1702     atomics_win32
1703 "
1704
1705 AUTODETECT_LIBS="
1706     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1707     $HWACCEL_AUTODETECT_LIBRARY_LIST
1708     $THREADS_LIST
1709 "
1710
1711 ARCH_LIST="
1712     aarch64
1713     alpha
1714     arm
1715     avr32
1716     avr32_ap
1717     avr32_uc
1718     bfin
1719     ia64
1720     m68k
1721     mips
1722     mips64
1723     parisc
1724     ppc
1725     ppc64
1726     s390
1727     sh4
1728     sparc
1729     sparc64
1730     tilegx
1731     tilepro
1732     tomi
1733     x86
1734     x86_32
1735     x86_64
1736 "
1737
1738 ARCH_EXT_LIST_ARM="
1739     armv5te
1740     armv6
1741     armv6t2
1742     armv8
1743     neon
1744     vfp
1745     vfpv3
1746     setend
1747 "
1748
1749 ARCH_EXT_LIST_MIPS="
1750     mipsfpu
1751     mips32r2
1752     mips32r5
1753     mips64r2
1754     mips32r6
1755     mips64r6
1756     mipsdsp
1757     mipsdspr2
1758     msa
1759 "
1760
1761 ARCH_EXT_LIST_LOONGSON="
1762     loongson2
1763     loongson3
1764     mmi
1765 "
1766
1767 ARCH_EXT_LIST_X86_SIMD="
1768     aesni
1769     amd3dnow
1770     amd3dnowext
1771     avx
1772     avx2
1773     fma3
1774     fma4
1775     mmx
1776     mmxext
1777     sse
1778     sse2
1779     sse3
1780     sse4
1781     sse42
1782     ssse3
1783     xop
1784 "
1785
1786 ARCH_EXT_LIST_PPC="
1787     altivec
1788     dcbzl
1789     ldbrx
1790     power8
1791     ppc4xx
1792     vsx
1793 "
1794
1795 ARCH_EXT_LIST_X86="
1796     $ARCH_EXT_LIST_X86_SIMD
1797     cpunop
1798     i686
1799 "
1800
1801 ARCH_EXT_LIST="
1802     $ARCH_EXT_LIST_ARM
1803     $ARCH_EXT_LIST_PPC
1804     $ARCH_EXT_LIST_X86
1805     $ARCH_EXT_LIST_MIPS
1806     $ARCH_EXT_LIST_LOONGSON
1807 "
1808
1809 ARCH_FEATURES="
1810     aligned_stack
1811     fast_64bit
1812     fast_clz
1813     fast_cmov
1814     local_aligned_8
1815     local_aligned_16
1816     local_aligned_32
1817     simd_align_16
1818 "
1819
1820 BUILTIN_LIST="
1821     atomic_cas_ptr
1822     atomic_compare_exchange
1823     machine_rw_barrier
1824     MemoryBarrier
1825     mm_empty
1826     rdtsc
1827     sarestart
1828     sem_timedwait
1829     sync_val_compare_and_swap
1830 "
1831 HAVE_LIST_CMDLINE="
1832     inline_asm
1833     symver
1834     yasm
1835 "
1836
1837 HAVE_LIST_PUB="
1838     bigendian
1839     fast_unaligned
1840 "
1841
1842 HEADERS_LIST="
1843     alsa_asoundlib_h
1844     altivec_h
1845     arpa_inet_h
1846     asm_types_h
1847     cdio_paranoia_h
1848     cdio_paranoia_paranoia_h
1849     cuda_h
1850     dispatch_dispatch_h
1851     dev_bktr_ioctl_bt848_h
1852     dev_bktr_ioctl_meteor_h
1853     dev_ic_bt8xx_h
1854     dev_video_bktr_ioctl_bt848_h
1855     dev_video_meteor_ioctl_meteor_h
1856     direct_h
1857     dirent_h
1858     dlfcn_h
1859     d3d11_h
1860     dxva_h
1861     ES2_gl_h
1862     gsm_h
1863     io_h
1864     mach_mach_time_h
1865     machine_ioctl_bt848_h
1866     machine_ioctl_meteor_h
1867     malloc_h
1868     opencv2_core_core_c_h
1869     openjpeg_2_1_openjpeg_h
1870     openjpeg_2_0_openjpeg_h
1871     openjpeg_1_5_openjpeg_h
1872     OpenGL_gl3_h
1873     poll_h
1874     sndio_h
1875     soundcard_h
1876     stdatomic_h
1877     sys_mman_h
1878     sys_param_h
1879     sys_resource_h
1880     sys_select_h
1881     sys_soundcard_h
1882     sys_time_h
1883     sys_un_h
1884     sys_videoio_h
1885     termios_h
1886     udplite_h
1887     unistd_h
1888     valgrind_valgrind_h
1889     windows_h
1890     winsock2_h
1891 "
1892
1893 INTRINSICS_LIST="
1894     intrinsics_neon
1895 "
1896
1897 COMPLEX_FUNCS="
1898     cabs
1899     cexp
1900 "
1901
1902 MATH_FUNCS="
1903     atanf
1904     atan2f
1905     cbrt
1906     cbrtf
1907     copysign
1908     cosf
1909     erf
1910     exp2
1911     exp2f
1912     expf
1913     hypot
1914     isfinite
1915     isinf
1916     isnan
1917     ldexpf
1918     llrint
1919     llrintf
1920     log2
1921     log2f
1922     log10f
1923     lrint
1924     lrintf
1925     powf
1926     rint
1927     round
1928     roundf
1929     sinf
1930     trunc
1931     truncf
1932 "
1933
1934 SYSTEM_FUNCS="
1935     access
1936     aligned_malloc
1937     arc4random
1938     clock_gettime
1939     closesocket
1940     CommandLineToArgvW
1941     CoTaskMemFree
1942     CryptGenRandom
1943     dlopen
1944     fcntl
1945     flt_lim
1946     fork
1947     getaddrinfo
1948     gethrtime
1949     getopt
1950     GetProcessAffinityMask
1951     GetProcessMemoryInfo
1952     GetProcessTimes
1953     getrusage
1954     GetSystemTimeAsFileTime
1955     gettimeofday
1956     glob
1957     glXGetProcAddress
1958     gmtime_r
1959     inet_aton
1960     isatty
1961     jack_port_get_latency_range
1962     kbhit
1963     LoadLibrary
1964     localtime_r
1965     lstat
1966     lzo1x_999_compress
1967     mach_absolute_time
1968     MapViewOfFile
1969     memalign
1970     mkstemp
1971     mmap
1972     mprotect
1973     nanosleep
1974     PeekNamedPipe
1975     posix_memalign
1976     pthread_cancel
1977     sched_getaffinity
1978     SetConsoleTextAttribute
1979     SetConsoleCtrlHandler
1980     setmode
1981     setrlimit
1982     Sleep
1983     strerror_r
1984     sysconf
1985     sysctl
1986     usleep
1987     UTGetOSTypeFromString
1988     VirtualAlloc
1989     wglGetProcAddress
1990 "
1991
1992 TOOLCHAIN_FEATURES="
1993     as_dn_directive
1994     as_func
1995     as_object_arch
1996     asm_mod_q
1997     attribute_may_alias
1998     attribute_packed
1999     ebp_available
2000     ebx_available
2001     gnu_as
2002     gnu_windres
2003     ibm_asm
2004     inline_asm_direct_symbol_refs
2005     inline_asm_labels
2006     inline_asm_nonlocal_labels
2007     pragma_deprecated
2008     rsync_contimeout
2009     symver_asm_label
2010     symver_gnu_asm
2011     vfp_args
2012     xform_asm
2013     xmm_clobbers
2014 "
2015
2016 TYPES_LIST="
2017     CONDITION_VARIABLE_Ptr
2018     socklen_t
2019     struct_addrinfo
2020     struct_group_source_req
2021     struct_ip_mreq_source
2022     struct_ipv6_mreq
2023     struct_msghdr_msg_flags
2024     struct_pollfd
2025     struct_rusage_ru_maxrss
2026     struct_sctp_event_subscribe
2027     struct_sockaddr_in6
2028     struct_sockaddr_sa_len
2029     struct_sockaddr_storage
2030     struct_stat_st_mtim_tv_nsec
2031     struct_v4l2_frmivalenum_discrete
2032 "
2033
2034 HAVE_LIST="
2035     $ARCH_EXT_LIST
2036     $(add_suffix _external $ARCH_EXT_LIST)
2037     $(add_suffix _inline   $ARCH_EXT_LIST)
2038     $ARCH_FEATURES
2039     $ATOMICS_LIST
2040     $BUILTIN_LIST
2041     $COMPLEX_FUNCS
2042     $HAVE_LIST_CMDLINE
2043     $HAVE_LIST_PUB
2044     $HEADERS_LIST
2045     $INTRINSICS_LIST
2046     $MATH_FUNCS
2047     $SYSTEM_FUNCS
2048     $THREADS_LIST
2049     $TOOLCHAIN_FEATURES
2050     $TYPES_LIST
2051     atomics_native
2052     dos_paths
2053     dxva2_lib
2054     dxva2api_cobj
2055     libc_msvcrt
2056     libdc1394_1
2057     libdc1394_2
2058     makeinfo
2059     makeinfo_html
2060     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2061     perl
2062     pod2man
2063     sdl2
2064     section_data_rel_ro
2065     texi2html
2066     threads
2067     vaapi_drm
2068     vaapi_x11
2069     vdpau_x11
2070     winrt
2071     xlib
2072 "
2073
2074 # options emitted with CONFIG_ prefix but not available on the command line
2075 CONFIG_EXTRA="
2076     aandcttables
2077     ac3dsp
2078     audio_frame_queue
2079     audiodsp
2080     blockdsp
2081     bswapdsp
2082     cabac
2083     dirac_parse
2084     dvprofile
2085     exif
2086     faandct
2087     faanidct
2088     fdctdsp
2089     flacdsp
2090     fmtconvert
2091     frame_thread_encoder
2092     g722dsp
2093     golomb
2094     gplv3
2095     h263dsp
2096     h264chroma
2097     h264dsp
2098     h264parse
2099     h264pred
2100     h264qpel
2101     hpeldsp
2102     huffman
2103     huffyuvdsp
2104     huffyuvencdsp
2105     idctdsp
2106     iirfilter
2107     imdct15
2108     intrax8
2109     iso_media
2110     ividsp
2111     jpegtables
2112     lgplv3
2113     libx262
2114     llauddsp
2115     llviddsp
2116     lpc
2117     lzf
2118     me_cmp
2119     mpeg_er
2120     mpegaudio
2121     mpegaudiodsp
2122     mpegvideo
2123     mpegvideoenc
2124     mss34dsp
2125     pixblockdsp
2126     qpeldsp
2127     qsv
2128     qsvdec
2129     qsvenc
2130     rangecoder
2131     riffdec
2132     riffenc
2133     rtpdec
2134     rtpenc_chain
2135     rv34dsp
2136     sinewin
2137     snappy
2138     srtp
2139     startcode
2140     texturedsp
2141     texturedspenc
2142     tpeldsp
2143     vaapi_encode
2144     vc1dsp
2145     videodsp
2146     vp3dsp
2147     vp56dsp
2148     vp8dsp
2149     vt_bt2020
2150     wma_freqs
2151     wmv2dsp
2152 "
2153
2154 CMDLINE_SELECT="
2155     $ARCH_EXT_LIST
2156     $CONFIG_LIST
2157     $HAVE_LIST_CMDLINE
2158     $THREADS_LIST
2159     asm
2160     cross_compile
2161     debug
2162     extra_warnings
2163     logging
2164     lto
2165     optimizations
2166     rpath
2167     stripping
2168 "
2169
2170 PATHS_LIST="
2171     bindir
2172     datadir
2173     docdir
2174     incdir
2175     libdir
2176     mandir
2177     pkgconfigdir
2178     prefix
2179     shlibdir
2180     install_name_dir
2181 "
2182
2183 CMDLINE_SET="
2184     $PATHS_LIST
2185     ar
2186     arch
2187     as
2188     assert_level
2189     build_suffix
2190     cc
2191     objcc
2192     cpu
2193     cross_prefix
2194     custom_allocator
2195     cxx
2196     dep_cc
2197     doxygen
2198     env
2199     extra_version
2200     gas
2201     host_cc
2202     host_cflags
2203     host_ld
2204     host_ldflags
2205     host_libs
2206     host_os
2207     install
2208     ld
2209     ln_s
2210     logfile
2211     malloc_prefix
2212     nm
2213     optflags
2214     pkg_config
2215     pkg_config_flags
2216     progs_suffix
2217     random_seed
2218     ranlib
2219     samples
2220     strip
2221     sws_max_filter_size
2222     sysinclude
2223     sysroot
2224     target_exec
2225     target_os
2226     target_path
2227     target_samples
2228     tempprefix
2229     toolchain
2230     valgrind
2231     yasmexe
2232 "
2233
2234 CMDLINE_APPEND="
2235     extra_cflags
2236     extra_cxxflags
2237     extra_objcflags
2238     host_cppflags
2239 "
2240
2241 # code dependency declarations
2242
2243 # architecture extensions
2244
2245 armv5te_deps="arm"
2246 armv6_deps="arm"
2247 armv6t2_deps="arm"
2248 armv8_deps="aarch64"
2249 neon_deps_any="aarch64 arm"
2250 intrinsics_neon_deps="neon"
2251 vfp_deps_any="aarch64 arm"
2252 vfpv3_deps="vfp"
2253 setend_deps="arm"
2254
2255 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2256
2257 loongson2_deps="mips"
2258 loongson3_deps="mips"
2259 mipsfpu_deps="mips"
2260 mipsdsp_deps="mips"
2261 mipsdspr2_deps="mips"
2262 mips32r2_deps="mips"
2263 mips32r5_deps="mips"
2264 mips32r6_deps="mips"
2265 mips64r2_deps="mips"
2266 mips64r6_deps="mips"
2267 msa_deps="mipsfpu"
2268 mmi_deps="mips"
2269
2270 altivec_deps="ppc"
2271 dcbzl_deps="ppc"
2272 ldbrx_deps="ppc"
2273 ppc4xx_deps="ppc"
2274 vsx_deps="altivec"
2275 power8_deps="vsx"
2276
2277 cpunop_deps="i686"
2278 x86_64_select="i686"
2279 x86_64_suggest="fast_cmov"
2280
2281 amd3dnow_deps="mmx"
2282 amd3dnowext_deps="amd3dnow"
2283 i686_deps="x86"
2284 mmx_deps="x86"
2285 mmxext_deps="mmx"
2286 sse_deps="mmxext"
2287 sse2_deps="sse"
2288 sse3_deps="sse2"
2289 ssse3_deps="sse3"
2290 sse4_deps="ssse3"
2291 sse42_deps="sse4"
2292 aesni_deps="sse42"
2293 avx_deps="sse42"
2294 xop_deps="avx"
2295 fma3_deps="avx"
2296 fma4_deps="avx"
2297 avx2_deps="avx"
2298
2299 mmx_external_deps="yasm"
2300 mmx_inline_deps="inline_asm"
2301 mmx_suggest="mmx_external mmx_inline"
2302
2303 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2304     eval dep=\$${ext}_deps
2305     eval ${ext}_external_deps='"${dep}_external"'
2306     eval ${ext}_inline_deps='"${dep}_inline"'
2307     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2308 done
2309
2310 aligned_stack_if_any="aarch64 ppc x86"
2311 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2312 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2313 fast_unaligned_if_any="aarch64 ppc x86"
2314 simd_align_16_if_any="altivec neon sse"
2315
2316 # system capabilities
2317 symver_if_any="symver_asm_label symver_gnu_asm"
2318 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2319
2320 # threading support
2321 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2322 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2323 atomics_win32_if="MemoryBarrier"
2324 atomics_native_if_any="$ATOMICS_LIST"
2325 w32threads_deps="atomics_native"
2326 threads_if_any="$THREADS_LIST"
2327
2328 # subsystems
2329 dct_select="rdft"
2330 dirac_parse_select="golomb"
2331 error_resilience_select="me_cmp"
2332 faandct_deps="faan fdctdsp"
2333 faanidct_deps="faan idctdsp"
2334 h264dsp_select="startcode"
2335 frame_thread_encoder_deps="encoders threads"
2336 intrax8_select="blockdsp idctdsp"
2337 mdct_select="fft"
2338 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2339 mpeg_er_select="error_resilience"
2340 mpegaudio_select="mpegaudiodsp"
2341 mpegaudiodsp_select="dct"
2342 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2343 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2344 vc1dsp_select="h264chroma qpeldsp startcode"
2345 rdft_select="fft"
2346
2347 # decoders / encoders
2348 aac_decoder_select="imdct15 mdct sinewin"
2349 aac_fixed_decoder_select="mdct sinewin"
2350 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2351 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2352 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2353 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2354 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2355 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2356 adpcm_g722_decoder_select="g722dsp"
2357 adpcm_g722_encoder_select="g722dsp"
2358 aic_decoder_select="golomb idctdsp"
2359 alac_encoder_select="lpc"
2360 als_decoder_select="bswapdsp"
2361 amrnb_decoder_select="lsp"
2362 amrwb_decoder_select="lsp"
2363 amv_decoder_select="sp5x_decoder exif"
2364 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2365 ape_decoder_select="bswapdsp llauddsp"
2366 apng_decoder_select="zlib"
2367 apng_encoder_select="huffyuvencdsp zlib"
2368 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2369 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2370 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2371 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2372 atrac1_decoder_select="mdct sinewin"
2373 atrac3_decoder_select="mdct"
2374 atrac3p_decoder_select="mdct sinewin"
2375 avrn_decoder_select="exif jpegtables"
2376 bink_decoder_select="blockdsp hpeldsp"
2377 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2378 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2379 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2380 cllc_decoder_select="bswapdsp"
2381 comfortnoise_encoder_select="lpc"
2382 cook_decoder_select="audiodsp mdct sinewin"
2383 cscd_decoder_select="lzo"
2384 cscd_decoder_suggest="zlib"
2385 dca_decoder_select="mdct"
2386 dds_decoder_select="texturedsp"
2387 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2388 dnxhd_decoder_select="blockdsp idctdsp"
2389 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2390 dvvideo_decoder_select="dvprofile idctdsp"
2391 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2392 dxa_decoder_select="zlib"
2393 dxv_decoder_select="lzf texturedsp"
2394 eac3_decoder_select="ac3_decoder"
2395 eac3_encoder_select="ac3_encoder"
2396 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2397 eatgq_decoder_select="aandcttables"
2398 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2399 exr_decoder_select="zlib"
2400 ffv1_decoder_select="golomb rangecoder"
2401 ffv1_encoder_select="rangecoder"
2402 ffvhuff_decoder_select="huffyuv_decoder"
2403 ffvhuff_encoder_select="huffyuv_encoder"
2404 fic_decoder_select="golomb"
2405 flac_decoder_select="flacdsp golomb"
2406 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2407 flashsv2_decoder_select="zlib"
2408 flashsv2_encoder_select="zlib"
2409 flashsv_decoder_select="zlib"
2410 flashsv_encoder_select="zlib"
2411 flv_decoder_select="h263_decoder"
2412 flv_encoder_select="h263_encoder"
2413 fourxm_decoder_select="blockdsp bswapdsp"
2414 fraps_decoder_select="bswapdsp huffman"
2415 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2416 g729_decoder_select="audiodsp"
2417 h261_decoder_select="mpegvideo"
2418 h261_encoder_select="aandcttables mpegvideoenc"
2419 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2420 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2421 h263i_decoder_select="h263_decoder"
2422 h263p_decoder_select="h263_decoder"
2423 h263p_encoder_select="h263_encoder"
2424 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2425 h264_decoder_suggest="error_resilience"
2426 hap_decoder_select="snappy texturedsp"
2427 hap_encoder_deps="libsnappy"
2428 hap_encoder_select="texturedspenc"
2429 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2430 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2431 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2432 iac_decoder_select="imc_decoder"
2433 imc_decoder_select="bswapdsp fft mdct sinewin"
2434 indeo3_decoder_select="hpeldsp"
2435 indeo4_decoder_select="ividsp"
2436 indeo5_decoder_select="ividsp"
2437 interplay_video_decoder_select="hpeldsp"
2438 jpegls_decoder_select="golomb mjpeg_decoder"
2439 jpegls_encoder_select="golomb"
2440 jv_decoder_select="blockdsp"
2441 lagarith_decoder_select="huffyuvdsp"
2442 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2443 loco_decoder_select="golomb"
2444 magicyuv_decoder_select="huffyuvdsp"
2445 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2446 metasound_decoder_select="lsp mdct sinewin"
2447 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2448 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2449 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2450 mjpegb_decoder_select="mjpeg_decoder"
2451 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2452 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2453 mlp_decoder_select="mlp_parser"
2454 motionpixels_decoder_select="bswapdsp"
2455 mp1_decoder_select="mpegaudio"
2456 mp1float_decoder_select="mpegaudio"
2457 mp2_decoder_select="mpegaudio"
2458 mp2float_decoder_select="mpegaudio"
2459 mp3_decoder_select="mpegaudio"
2460 mp3adu_decoder_select="mpegaudio"
2461 mp3adufloat_decoder_select="mpegaudio"
2462 mp3float_decoder_select="mpegaudio"
2463 mp3on4_decoder_select="mpegaudio"
2464 mp3on4float_decoder_select="mpegaudio"
2465 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2466 mpc8_decoder_select="mpegaudiodsp"
2467 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2468 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2469 mpegvideo_decoder_select="mpegvideo"
2470 mpeg1video_decoder_select="mpegvideo"
2471 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2472 mpeg2video_decoder_select="mpegvideo"
2473 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2474 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2475 mpeg4_encoder_select="h263_encoder"
2476 msa1_decoder_select="mss34dsp"
2477 msmpeg4v1_decoder_select="h263_decoder"
2478 msmpeg4v2_decoder_select="h263_decoder"
2479 msmpeg4v2_encoder_select="h263_encoder"
2480 msmpeg4v3_decoder_select="h263_decoder"
2481 msmpeg4v3_encoder_select="h263_encoder"
2482 mss2_decoder_select="vc1_decoder mpegvideo"
2483 mts2_decoder_select="mss34dsp"
2484 mxpeg_decoder_select="mjpeg_decoder"
2485 nellymoser_decoder_select="mdct sinewin"
2486 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2487 nuv_decoder_select="idctdsp lzo"
2488 on2avc_decoder_select="mdct"
2489 opus_decoder_deps="swresample"
2490 opus_decoder_select="imdct15"
2491 png_decoder_select="zlib"
2492 png_encoder_select="huffyuvencdsp zlib"
2493 prores_decoder_select="blockdsp idctdsp"
2494 prores_encoder_select="fdctdsp"
2495 qcelp_decoder_select="lsp"
2496 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2497 ra_144_decoder_select="audiodsp"
2498 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2499 ralf_decoder_select="golomb"
2500 rawvideo_decoder_select="bswapdsp"
2501 rscc_decoder_select="zlib"
2502 rtjpeg_decoder_select="me_cmp"
2503 rv10_decoder_select="h263_decoder"
2504 rv10_encoder_select="h263_encoder"
2505 rv20_decoder_select="h263_decoder"
2506 rv20_encoder_select="h263_encoder"
2507 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2508 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2509 screenpresso_decoder_select="zlib"
2510 shorten_decoder_select="golomb"
2511 sipr_decoder_select="lsp"
2512 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2513 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2514 sonic_decoder_select="golomb rangecoder"
2515 sonic_encoder_select="golomb rangecoder"
2516 sonic_ls_encoder_select="golomb rangecoder"
2517 sp5x_decoder_select="mjpeg_decoder"
2518 svq1_decoder_select="hpeldsp"
2519 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2520 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2521 svq3_decoder_suggest="zlib"
2522 tak_decoder_select="audiodsp"
2523 tdsc_decoder_select="zlib mjpeg_decoder"
2524 theora_decoder_select="vp3_decoder"
2525 thp_decoder_select="mjpeg_decoder"
2526 tiff_decoder_suggest="zlib lzma"
2527 tiff_encoder_suggest="zlib"
2528 truehd_decoder_select="mlp_parser"
2529 truemotion2_decoder_select="bswapdsp"
2530 truespeech_decoder_select="bswapdsp"
2531 tscc_decoder_select="zlib"
2532 twinvq_decoder_select="mdct lsp sinewin"
2533 txd_decoder_select="texturedsp"
2534 utvideo_decoder_select="bswapdsp"
2535 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2536 vble_decoder_select="huffyuvdsp"
2537 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2538 vc1_qsv_decoder_deps="libmfx"
2539 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2540 vc1image_decoder_select="vc1_decoder"
2541 vorbis_decoder_select="mdct"
2542 vorbis_encoder_select="mdct"
2543 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2544 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2545 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2546 vp6a_decoder_select="vp6_decoder"
2547 vp6f_decoder_select="vp6_decoder"
2548 vp7_decoder_select="h264pred videodsp vp8dsp"
2549 vp8_decoder_select="h264pred videodsp vp8dsp"
2550 vp9_decoder_select="videodsp vp9_parser"
2551 webp_decoder_select="vp8_decoder exif"
2552 wmalossless_decoder_select="llauddsp"
2553 wmapro_decoder_select="mdct sinewin wma_freqs"
2554 wmav1_decoder_select="mdct sinewin wma_freqs"
2555 wmav1_encoder_select="mdct sinewin wma_freqs"
2556 wmav2_decoder_select="mdct sinewin wma_freqs"
2557 wmav2_encoder_select="mdct sinewin wma_freqs"
2558 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2559 wmv1_decoder_select="h263_decoder"
2560 wmv1_encoder_select="h263_encoder"
2561 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2562 wmv2_encoder_select="h263_encoder wmv2dsp"
2563 wmv3_decoder_select="vc1_decoder"
2564 wmv3image_decoder_select="wmv3_decoder"
2565 xma1_decoder_select="wmapro_decoder"
2566 xma2_decoder_select="wmapro_decoder"
2567 zerocodec_decoder_select="zlib"
2568 zlib_decoder_select="zlib"
2569 zlib_encoder_select="zlib"
2570 zmbv_decoder_select="zlib"
2571 zmbv_encoder_select="zlib"
2572
2573 # platform codecs
2574 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2575 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2576
2577 # hardware accelerators
2578 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2579 cuda_deps_any="dlopen LoadLibrary"
2580 cuvid_deps="cuda"
2581 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2582 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2583 dxva2_extralibs="-luser32"
2584 vaapi_deps="va_va_h"
2585 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2586 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2587 vda_deps="vda_framework pthreads"
2588 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2589 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2590 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2591 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2592 xvmc_deps="X11_extensions_XvMClib_h"
2593
2594 h263_vaapi_hwaccel_deps="vaapi"
2595 h263_vaapi_hwaccel_select="h263_decoder"
2596 h263_videotoolbox_hwaccel_deps="videotoolbox"
2597 h263_videotoolbox_hwaccel_select="h263_decoder"
2598 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2599 h264_cuvid_hwaccel_deps="cuda cuvid"
2600 h264_d3d11va_hwaccel_deps="d3d11va"
2601 h264_d3d11va_hwaccel_select="h264_decoder"
2602 h264_dxva2_hwaccel_deps="dxva2"
2603 h264_dxva2_hwaccel_select="h264_decoder"
2604 h264_mediacodec_decoder_deps="mediacodec"
2605 h264_mediacodec_hwaccel_deps="mediacodec"
2606 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2607 h264_mmal_decoder_deps="mmal"
2608 h264_mmal_decoder_select="mmal"
2609 h264_mmal_hwaccel_deps="mmal"
2610 h264_omx_encoder_deps="omx"
2611 h264_qsv_hwaccel_deps="libmfx"
2612 h264_vaapi_hwaccel_deps="vaapi"
2613 h264_vaapi_hwaccel_select="h264_decoder"
2614 h264_vda_decoder_deps="vda"
2615 h264_vda_decoder_select="h264_decoder"
2616 h264_vda_hwaccel_deps="vda"
2617 h264_vda_hwaccel_select="h264_decoder"
2618 h264_vda_old_hwaccel_deps="vda"
2619 h264_vda_old_hwaccel_select="h264_decoder"
2620 h264_vdpau_decoder_deps="vdpau"
2621 h264_vdpau_decoder_select="h264_decoder"
2622 h264_vdpau_hwaccel_deps="vdpau"
2623 h264_vdpau_hwaccel_select="h264_decoder"
2624 h264_videotoolbox_hwaccel_deps="videotoolbox"
2625 h264_videotoolbox_hwaccel_select="h264_decoder"
2626 hevc_cuvid_hwaccel_deps="cuda cuvid"
2627 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2628 hevc_d3d11va_hwaccel_select="hevc_decoder"
2629 hevc_mediacodec_decoder_deps="mediacodec"
2630 hevc_mediacodec_hwaccel_deps="mediacodec"
2631 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2632 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2633 hevc_dxva2_hwaccel_select="hevc_decoder"
2634 hevc_qsv_hwaccel_deps="libmfx"
2635 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2636 hevc_vaapi_hwaccel_select="hevc_decoder"
2637 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2638 hevc_vdpau_hwaccel_select="hevc_decoder"
2639 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2640 mpeg_vdpau_decoder_deps="vdpau"
2641 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2642 mpeg_xvmc_hwaccel_deps="xvmc"
2643 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2644 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2645 mpeg1_vdpau_decoder_deps="vdpau"
2646 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2647 mpeg1_vdpau_hwaccel_deps="vdpau"
2648 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2649 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2650 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2651 mpeg1_xvmc_hwaccel_deps="xvmc"
2652 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2653 mpeg2_crystalhd_decoder_select="crystalhd"
2654 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2655 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2656 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2657 mpeg2_dxva2_hwaccel_deps="dxva2"
2658 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2659 mpeg2_mmal_decoder_deps="mmal"
2660 mpeg2_mmal_decoder_select="mmal"
2661 mpeg2_mmal_hwaccel_deps="mmal"
2662 mpeg2_qsv_hwaccel_deps="libmfx"
2663 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2664 mpeg2_vaapi_hwaccel_deps="vaapi"
2665 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2666 mpeg2_vdpau_hwaccel_deps="vdpau"
2667 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2668 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2669 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2670 mpeg2_xvmc_hwaccel_deps="xvmc"
2671 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2672 mpeg4_crystalhd_decoder_select="crystalhd"
2673 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2674 mpeg4_mediacodec_decoder_deps="mediacodec"
2675 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2676 mpeg4_mmal_decoder_deps="mmal"
2677 mpeg4_mmal_decoder_select="mmal"
2678 mpeg4_mmal_hwaccel_deps="mmal"
2679 mpeg4_omx_encoder_deps="omx"
2680 mpeg4_vaapi_hwaccel_deps="vaapi"
2681 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2682 mpeg4_vdpau_decoder_deps="vdpau"
2683 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2684 mpeg4_vdpau_hwaccel_deps="vdpau"
2685 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2686 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2687 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2688 msmpeg4_crystalhd_decoder_select="crystalhd"
2689 vc1_crystalhd_decoder_select="crystalhd"
2690 vc1_cuvid_hwaccel_deps="cuda cuvid"
2691 vc1_d3d11va_hwaccel_deps="d3d11va"
2692 vc1_d3d11va_hwaccel_select="vc1_decoder"
2693 vc1_dxva2_hwaccel_deps="dxva2"
2694 vc1_dxva2_hwaccel_select="vc1_decoder"
2695 vc1_mmal_decoder_deps="mmal"
2696 vc1_mmal_decoder_select="mmal"
2697 vc1_mmal_hwaccel_deps="mmal"
2698 vc1_qsv_hwaccel_deps="libmfx"
2699 vc1_qsv_hwaccel_select="qsvdec_vc1"
2700 vc1_vaapi_hwaccel_deps="vaapi"
2701 vc1_vaapi_hwaccel_select="vc1_decoder"
2702 vc1_vdpau_decoder_deps="vdpau"
2703 vc1_vdpau_decoder_select="vc1_decoder"
2704 vc1_vdpau_hwaccel_deps="vdpau"
2705 vc1_vdpau_hwaccel_select="vc1_decoder"
2706 vp8_cuvid_hwaccel_deps="cuda cuvid"
2707 vp9_cuvid_hwaccel_deps="cuda cuvid"
2708 vp8_mediacodec_decoder_deps="mediacodec"
2709 vp8_mediacodec_hwaccel_deps="mediacodec"
2710 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2711 vp9_d3d11va_hwaccel_select="vp9_decoder"
2712 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2713 vp9_dxva2_hwaccel_select="vp9_decoder"
2714 vp9_mediacodec_decoder_deps="mediacodec"
2715 vp9_mediacodec_hwaccel_deps="mediacodec"
2716 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2717 vp9_vaapi_hwaccel_select="vp9_decoder"
2718 wmv3_crystalhd_decoder_select="crystalhd"
2719 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2720 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2721 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2722 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2723 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2724
2725 # hardware-accelerated codecs
2726 omx_deps="dlopen pthreads"
2727 omx_extralibs='$ldl'
2728 qsvdec_select="qsv"
2729 qsvenc_select="qsv"
2730 vaapi_encode_deps="vaapi"
2731
2732 hwupload_cuda_filter_deps="cuda"
2733 scale_npp_filter_deps="cuda libnpp"
2734
2735 nvenc_deps="cuda"
2736 nvenc_deps_any="dlopen LoadLibrary"
2737 nvenc_encoder_deps="nvenc"
2738 h264_cuvid_decoder_deps="cuda cuvid"
2739 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2740 h264_nvenc_encoder_deps="nvenc"
2741 h264_qsv_decoder_deps="libmfx"
2742 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2743 h264_qsv_encoder_deps="libmfx"
2744 h264_qsv_encoder_select="qsvenc"
2745 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2746 h264_vaapi_encoder_select="vaapi_encode golomb"
2747
2748 hevc_cuvid_decoder_deps="cuda cuvid"
2749 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2750 hevc_nvenc_encoder_deps="nvenc"
2751 hevc_qsv_decoder_deps="libmfx"
2752 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2753 hevc_qsv_encoder_deps="libmfx"
2754 hevc_qsv_encoder_select="qsvenc"
2755 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2756 hevc_vaapi_encoder_select="vaapi_encode golomb"
2757 mjpeg_cuvid_decoder_deps="cuda cuvid"
2758 mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"
2759 mpeg1_cuvid_decoder_deps="cuda cuvid"
2760 mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"
2761 mpeg2_cuvid_decoder_deps="cuda cuvid"
2762 mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"
2763 mpeg2_qsv_decoder_deps="libmfx"
2764 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2765 mpeg2_qsv_encoder_deps="libmfx"
2766 mpeg2_qsv_encoder_select="qsvenc"
2767 mpeg4_cuvid_decoder_deps="cuda cuvid"
2768 mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"
2769 nvenc_h264_encoder_deps="nvenc"
2770 nvenc_hevc_encoder_deps="nvenc"
2771
2772 vc1_cuvid_decoder_deps="cuda cuvid"
2773 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2774 vp8_cuvid_decoder_deps="cuda cuvid"
2775 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2776 vp9_cuvid_decoder_deps="cuda cuvid"
2777 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2778
2779 # parsers
2780 h264_parser_select="golomb h264dsp h264parse"
2781 hevc_parser_select="golomb"
2782 mpegvideo_parser_select="mpegvideo"
2783 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2784 vc1_parser_select="vc1dsp"
2785
2786 # bitstream_filters
2787 mjpeg2jpeg_bsf_select="jpegtables"
2788
2789 # external libraries
2790 aac_at_decoder_deps="audiotoolbox"
2791 ac3_at_decoder_deps="audiotoolbox"
2792 ac3_at_decoder_select="ac3_parser"
2793 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2794 alac_at_decoder_deps="audiotoolbox"
2795 amr_nb_at_decoder_deps="audiotoolbox"
2796 avisynth_deps_any="dlopen LoadLibrary"
2797 avisynth_demuxer_deps="avisynth"
2798 avisynth_demuxer_select="riffdec"
2799 eac3_at_decoder_deps="audiotoolbox"
2800 eac3_at_decoder_select="ac3_parser"
2801 gsm_ms_at_decoder_deps="audiotoolbox"
2802 ilbc_at_decoder_deps="audiotoolbox"
2803 mp1_at_decoder_deps="audiotoolbox"
2804 mp2_at_decoder_deps="audiotoolbox"
2805 mp3_at_decoder_deps="audiotoolbox"
2806 pcm_alaw_at_decoder_deps="audiotoolbox"
2807 pcm_mulaw_at_decoder_deps="audiotoolbox"
2808 qdmc_at_decoder_deps="audiotoolbox"
2809 qdm2_at_decoder_deps="audiotoolbox"
2810 aac_at_encoder_deps="audiotoolbox"
2811 aac_at_encoder_select="audio_frame_queue"
2812 alac_at_encoder_deps="audiotoolbox"
2813 alac_at_encoder_select="audio_frame_queue"
2814 ilbc_at_encoder_deps="audiotoolbox"
2815 ilbc_at_encoder_select="audio_frame_queue"
2816 pcm_alaw_at_encoder_deps="audiotoolbox"
2817 pcm_alaw_at_encoder_select="audio_frame_queue"
2818 pcm_mulaw_at_encoder_deps="audiotoolbox"
2819 pcm_mulaw_at_encoder_select="audio_frame_queue"
2820 chromaprint_muxer_deps="chromaprint"
2821 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2822 libcelt_decoder_deps="libcelt"
2823 libfdk_aac_decoder_deps="libfdk_aac"
2824 libfdk_aac_encoder_deps="libfdk_aac"
2825 libfdk_aac_encoder_select="audio_frame_queue"
2826 libgme_demuxer_deps="libgme"
2827 libgsm_decoder_deps="libgsm"
2828 libgsm_encoder_deps="libgsm"
2829 libgsm_ms_decoder_deps="libgsm"
2830 libgsm_ms_encoder_deps="libgsm"
2831 libilbc_decoder_deps="libilbc"
2832 libilbc_encoder_deps="libilbc"
2833 libkvazaar_encoder_deps="libkvazaar"
2834 libmodplug_demuxer_deps="libmodplug"
2835 libmp3lame_encoder_deps="libmp3lame"
2836 libmp3lame_encoder_select="audio_frame_queue"
2837 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2838 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2839 libopencore_amrnb_encoder_select="audio_frame_queue"
2840 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2841 libopenh264_decoder_deps="libopenh264"
2842 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2843 libopenh264_encoder_deps="libopenh264"
2844 libopenjpeg_decoder_deps="libopenjpeg"
2845 libopenjpeg_encoder_deps="libopenjpeg"
2846 libopenmpt_demuxer_deps="libopenmpt"
2847 libopus_decoder_deps="libopus"
2848 libopus_encoder_deps="libopus"
2849 libopus_encoder_select="audio_frame_queue"
2850 libschroedinger_decoder_deps="libschroedinger"
2851 libschroedinger_encoder_deps="libschroedinger"
2852 libshine_encoder_deps="libshine"
2853 libshine_encoder_select="audio_frame_queue"
2854 libspeex_decoder_deps="libspeex"
2855 libspeex_encoder_deps="libspeex"
2856 libspeex_encoder_select="audio_frame_queue"
2857 libtheora_encoder_deps="libtheora"
2858 libtwolame_encoder_deps="libtwolame"
2859 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2860 libvorbis_decoder_deps="libvorbis"
2861 libvorbis_encoder_deps="libvorbis"
2862 libvorbis_encoder_select="audio_frame_queue"
2863 libvpx_vp8_decoder_deps="libvpx"
2864 libvpx_vp8_encoder_deps="libvpx"
2865 libvpx_vp9_decoder_deps="libvpx"
2866 libvpx_vp9_encoder_deps="libvpx"
2867 libwavpack_encoder_deps="libwavpack"
2868 libwebp_encoder_deps="libwebp"
2869 libwebp_anim_encoder_deps="libwebp"
2870 libx262_encoder_deps="libx262"
2871 libx264_encoder_deps="libx264"
2872 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2873 libx264rgb_encoder_select="libx264_encoder"
2874 libx265_encoder_deps="libx265"
2875 libxavs_encoder_deps="libxavs"
2876 libxvid_encoder_deps="libxvid"
2877 libzvbi_teletext_decoder_deps="libzvbi"
2878 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2879 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2880 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2881 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2882 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2883
2884 # demuxers / muxers
2885 ac3_demuxer_select="ac3_parser"
2886 asf_demuxer_select="riffdec"
2887 asf_o_demuxer_select="riffdec"
2888 asf_muxer_select="riffenc"
2889 asf_stream_muxer_select="asf_muxer"
2890 avi_demuxer_select="iso_media riffdec exif"
2891 avi_muxer_select="riffenc"
2892 caf_demuxer_select="iso_media riffdec"
2893 dash_muxer_select="mp4_muxer"
2894 dirac_demuxer_select="dirac_parser"
2895 dts_demuxer_select="dca_parser"
2896 dtshd_demuxer_select="dca_parser"
2897 dv_demuxer_select="dvprofile"
2898 dv_muxer_select="dvprofile"
2899 dxa_demuxer_select="riffdec"
2900 eac3_demuxer_select="ac3_parser"
2901 f4v_muxer_select="mov_muxer"
2902 fifo_muxer_deps="threads"
2903 flac_demuxer_select="flac_parser"
2904 hds_muxer_select="flv_muxer"
2905 hls_muxer_select="mpegts_muxer"
2906 image2_alias_pix_demuxer_select="image2_demuxer"
2907 image2_brender_pix_demuxer_select="image2_demuxer"
2908 ipod_muxer_select="mov_muxer"
2909 ismv_muxer_select="mov_muxer"
2910 libnut_demuxer_deps="libnut"
2911 libnut_muxer_deps="libnut"
2912 matroska_audio_muxer_select="matroska_muxer"
2913 matroska_demuxer_select="iso_media riffdec"
2914 matroska_demuxer_suggest="bzlib lzo zlib"
2915 matroska_muxer_select="iso_media riffenc"
2916 mmf_muxer_select="riffenc"
2917 mov_demuxer_select="iso_media riffdec"
2918 mov_demuxer_suggest="zlib"
2919 mov_muxer_select="iso_media riffenc rtpenc_chain"
2920 mp3_demuxer_select="mpegaudio_parser"
2921 mp4_muxer_select="mov_muxer"
2922 mpegts_demuxer_select="iso_media"
2923 mpegts_muxer_select="adts_muxer latm_muxer"
2924 mpegtsraw_demuxer_select="mpegts_demuxer"
2925 mxf_d10_muxer_select="mxf_muxer"
2926 mxf_opatom_muxer_select="mxf_muxer"
2927 nut_muxer_select="riffenc"
2928 nuv_demuxer_select="riffdec"
2929 oga_muxer_select="ogg_muxer"
2930 ogg_demuxer_select="dirac_parse"
2931 ogv_muxer_select="ogg_muxer"
2932 opus_muxer_select="ogg_muxer"
2933 psp_muxer_select="mov_muxer"
2934 rtp_demuxer_select="sdp_demuxer"
2935 rtp_muxer_select="golomb"
2936 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2937 rtsp_demuxer_select="http_protocol rtpdec"
2938 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2939 sap_demuxer_select="sdp_demuxer"
2940 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2941 sdp_demuxer_select="rtpdec"
2942 smoothstreaming_muxer_select="ismv_muxer"
2943 spdif_muxer_select="aac_parser"
2944 spx_muxer_select="ogg_muxer"
2945 swf_demuxer_suggest="zlib"
2946 tak_demuxer_select="tak_parser"
2947 tg2_muxer_select="mov_muxer"
2948 tgp_muxer_select="mov_muxer"
2949 vobsub_demuxer_select="mpegps_demuxer"
2950 w64_demuxer_select="wav_demuxer"
2951 w64_muxer_select="wav_muxer"
2952 wav_demuxer_select="riffdec"
2953 wav_muxer_select="riffenc"
2954 webm_muxer_select="iso_media riffenc"
2955 webm_dash_manifest_demuxer_select="matroska_demuxer"
2956 wtv_demuxer_select="mpegts_demuxer riffdec"
2957 wtv_muxer_select="mpegts_muxer riffenc"
2958 xmv_demuxer_select="riffdec"
2959 xwma_demuxer_select="riffdec"
2960
2961 # indevs / outdevs
2962 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2963 alsa_outdev_deps="alsa_asoundlib_h"
2964 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2965 avfoundation_indev_select="avfoundation"
2966 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2967 caca_outdev_deps="libcaca"
2968 decklink_indev_deps="decklink pthreads"
2969 decklink_indev_extralibs="-lstdc++"
2970 decklink_outdev_deps="decklink pthreads"
2971 decklink_outdev_extralibs="-lstdc++"
2972 dshow_indev_deps="IBaseFilter"
2973 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2974 dv1394_indev_deps="dv1394"
2975 dv1394_indev_select="dv_demuxer"
2976 fbdev_indev_deps="linux_fb_h"
2977 fbdev_outdev_deps="linux_fb_h"
2978 gdigrab_indev_deps="CreateDIBSection"
2979 gdigrab_indev_extralibs="-lgdi32"
2980 gdigrab_indev_select="bmp_decoder"
2981 iec61883_indev_deps="libiec61883"
2982 jack_indev_deps="jack_jack_h"
2983 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2984 lavfi_indev_deps="avfilter"
2985 libcdio_indev_deps="libcdio"
2986 libdc1394_indev_deps="libdc1394"
2987 libv4l2_indev_deps="libv4l2"
2988 openal_indev_deps="openal"
2989 opengl_outdev_deps="opengl"
2990 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2991 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2992 pulse_indev_deps="libpulse"
2993 pulse_outdev_deps="libpulse"
2994 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2995 qtkit_indev_select="qtkit"
2996 sdl2_outdev_deps="sdl2"
2997 sndio_indev_deps="sndio_h"
2998 sndio_outdev_deps="sndio_h"
2999 v4l_indev_deps="linux_videodev_h"
3000 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3001 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3002 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3003 vfwcap_indev_extralibs="-lavicap32"
3004 x11grab_indev_deps="x11grab"
3005 x11grab_xcb_indev_deps="libxcb"
3006 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3007 xv_outdev_extralibs="-lXv -lX11 -lXext"
3008
3009 # protocols
3010 async_protocol_deps="threads"
3011 bluray_protocol_deps="libbluray"
3012 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3013 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3014 ffrtmpcrypt_protocol_select="tcp_protocol"
3015 ffrtmphttp_protocol_deps="!librtmp_protocol"
3016 ffrtmphttp_protocol_select="http_protocol"
3017 ftp_protocol_select="tcp_protocol"
3018 gopher_protocol_select="network"
3019 http_protocol_select="tcp_protocol"
3020 httpproxy_protocol_select="tcp_protocol"
3021 https_protocol_select="tls_protocol"
3022 icecast_protocol_select="http_protocol"
3023 librtmp_protocol_deps="librtmp"
3024 librtmpe_protocol_deps="librtmp"
3025 librtmps_protocol_deps="librtmp"
3026 librtmpt_protocol_deps="librtmp"
3027 librtmpte_protocol_deps="librtmp"
3028 libsmbclient_protocol_deps="libsmbclient gplv3"
3029 libssh_protocol_deps="libssh"
3030 mmsh_protocol_select="http_protocol"
3031 mmst_protocol_select="network"
3032 rtmp_protocol_deps="!librtmp_protocol"
3033 rtmp_protocol_select="tcp_protocol"
3034 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3035 rtmps_protocol_deps="!librtmp_protocol"
3036 rtmps_protocol_select="tls_protocol"
3037 rtmpt_protocol_select="ffrtmphttp_protocol"
3038 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3039 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3040 rtp_protocol_select="udp_protocol"
3041 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3042 sctp_protocol_select="network"
3043 srtp_protocol_select="rtp_protocol srtp"
3044 tcp_protocol_select="network"
3045 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3046 tls_gnutls_protocol_select="tcp_protocol"
3047 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3048 tls_openssl_protocol_select="tcp_protocol"
3049 tls_schannel_protocol_deps="schannel"
3050 tls_schannel_protocol_select="tcp_protocol"
3051 tls_securetransport_protocol_deps="securetransport"
3052 tls_securetransport_protocol_select="tcp_protocol"
3053 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3054 udp_protocol_select="network"
3055 udplite_protocol_select="network"
3056 unix_protocol_deps="sys_un_h"
3057 unix_protocol_select="network"
3058
3059 # filters
3060 afftfilt_filter_deps="avcodec"
3061 afftfilt_filter_select="fft"
3062 amovie_filter_deps="avcodec avformat"
3063 aresample_filter_deps="swresample"
3064 ass_filter_deps="libass"
3065 asyncts_filter_deps="avresample"
3066 atempo_filter_deps="avcodec"
3067 atempo_filter_select="rdft"
3068 azmq_filter_deps="libzmq"
3069 blackframe_filter_deps="gpl"
3070 boxblur_filter_deps="gpl"
3071 bs2b_filter_deps="libbs2b"
3072 colormatrix_filter_deps="gpl"
3073 cover_rect_filter_deps="avcodec avformat gpl"
3074 cropdetect_filter_deps="gpl"
3075 delogo_filter_deps="gpl"
3076 deshake_filter_select="pixelutils"
3077 drawtext_filter_deps="libfreetype"
3078 eq_filter_deps="gpl"
3079 fftfilt_filter_deps="avcodec"
3080 fftfilt_filter_select="rdft"
3081 find_rect_filter_deps="avcodec avformat gpl"
3082 firequalizer_filter_deps="avcodec"
3083 firequalizer_filter_select="rdft"
3084 flite_filter_deps="libflite"
3085 framerate_filter_select="pixelutils"
3086 frei0r_filter_deps="frei0r dlopen"
3087 frei0r_src_filter_deps="frei0r dlopen"
3088 fspp_filter_deps="gpl"
3089 geq_filter_deps="gpl"
3090 histeq_filter_deps="gpl"
3091 hqdn3d_filter_deps="gpl"
3092 interlace_filter_deps="gpl"
3093 kerndeint_filter_deps="gpl"
3094 ladspa_filter_deps="ladspa dlopen"
3095 mcdeint_filter_deps="avcodec gpl"
3096 movie_filter_deps="avcodec avformat"
3097 mpdecimate_filter_deps="gpl"
3098 mpdecimate_filter_select="pixelutils"
3099 mptestsrc_filter_deps="gpl"
3100 negate_filter_deps="lut_filter"
3101 nnedi_filter_deps="gpl"
3102 ocr_filter_deps="libtesseract"
3103 ocv_filter_deps="libopencv"
3104 owdenoise_filter_deps="gpl"
3105 pan_filter_deps="swresample"
3106 perspective_filter_deps="gpl"
3107 phase_filter_deps="gpl"
3108 pp7_filter_deps="gpl"
3109 pp_filter_deps="gpl postproc"
3110 pullup_filter_deps="gpl"
3111 removelogo_filter_deps="avcodec avformat swscale"
3112 repeatfields_filter_deps="gpl"
3113 resample_filter_deps="avresample"
3114 rubberband_filter_deps="librubberband"
3115 sab_filter_deps="gpl swscale"
3116 scale2ref_filter_deps="swscale"
3117 scale_filter_deps="swscale"
3118 select_filter_select="pixelutils"
3119 showcqt_filter_deps="avcodec avformat swscale"
3120 showcqt_filter_select="fft"
3121 showfreqs_filter_deps="avcodec"
3122 showfreqs_filter_select="fft"
3123 showspectrum_filter_deps="avcodec"
3124 showspectrum_filter_select="fft"
3125 showspectrumpic_filter_deps="avcodec"
3126 showspectrumpic_filter_select="fft"
3127 smartblur_filter_deps="gpl swscale"
3128 sofalizer_filter_deps="netcdf avcodec"
3129 sofalizer_filter_select="fft"
3130 spectrumsynth_filter_deps="avcodec"
3131 spectrumsynth_filter_select="fft"
3132 spp_filter_deps="gpl avcodec"
3133 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3134 stereo3d_filter_deps="gpl"
3135 subtitles_filter_deps="avformat avcodec libass"
3136 super2xsai_filter_deps="gpl"
3137 pixfmts_super2xsai_test_deps="super2xsai_filter"
3138 tinterlace_filter_deps="gpl"
3139 tinterlace_merge_test_deps="tinterlace_filter"
3140 tinterlace_pad_test_deps="tinterlace_filter"
3141 uspp_filter_deps="gpl avcodec"
3142 vaguedenoiser_filter_deps="gpl"
3143 vidstabdetect_filter_deps="libvidstab"
3144 vidstabtransform_filter_deps="libvidstab"
3145 zmq_filter_deps="libzmq"
3146 zoompan_filter_deps="swscale"
3147 zscale_filter_deps="libzimg"
3148 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3149
3150 # examples
3151 avio_dir_cmd_deps="avformat avutil"
3152 avio_reading_deps="avformat avcodec avutil"
3153 decoding_encoding_example_deps="avcodec avformat avutil"
3154 demuxing_decoding_example_deps="avcodec avformat avutil"
3155 extract_mvs_example_deps="avcodec avformat avutil"
3156 filter_audio_example_deps="avfilter avutil"
3157 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3158 filtering_video_example_deps="avfilter avcodec avformat avutil"
3159 http_multiclient_example_deps="avformat avutil fork"
3160 metadata_example_deps="avformat avutil"
3161 muxing_example_deps="avcodec avformat avutil swscale"
3162 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3163 remuxing_example_deps="avcodec avformat avutil"
3164 resampling_audio_example_deps="avutil swresample"
3165 scaling_video_example_deps="avutil swscale"
3166 transcode_aac_example_deps="avcodec avformat swresample"
3167 transcoding_example_deps="avfilter avcodec avformat avutil"
3168
3169 # libraries, in linking order
3170 avcodec_deps="avutil"
3171 avdevice_deps="avformat avcodec avutil"
3172 avfilter_deps="avutil"
3173 avformat_deps="avcodec avutil"
3174 avresample_deps="avutil"
3175 postproc_deps="avutil gpl"
3176 swresample_deps="avutil"
3177 swscale_deps="avutil"
3178
3179 # programs
3180 ffmpeg_deps="avcodec avfilter avformat swresample"
3181 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3182                null_filter
3183                setpts_filter trim_filter"
3184 ffplay_deps="avcodec avformat swscale swresample sdl2"
3185 ffplay_libs='$sdl2_libs'
3186 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3187 ffprobe_deps="avcodec avformat"
3188 ffserver_deps="avformat fork sarestart"
3189 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3190
3191 # documentation
3192 podpages_deps="perl"
3193 manpages_deps="perl pod2man"
3194 htmlpages_deps="perl"
3195 htmlpages_deps_any="makeinfo_html texi2html"
3196 txtpages_deps="perl makeinfo"
3197 doc_deps_any="manpages htmlpages podpages txtpages"
3198
3199 # default parameters
3200
3201 logfile="config.log"
3202
3203 # installation paths
3204 prefix_default="/usr/local"
3205 bindir_default='${prefix}/bin'
3206 datadir_default='${prefix}/share/ffmpeg'
3207 docdir_default='${prefix}/share/doc/ffmpeg'
3208 incdir_default='${prefix}/include'
3209 libdir_default='${prefix}/lib'
3210 mandir_default='${prefix}/share/man'
3211
3212 # toolchain
3213 ar_default="ar"
3214 cc_default="gcc"
3215 cxx_default="g++"
3216 host_cc_default="gcc"
3217 cp_f="cp -f"
3218 doxygen_default="doxygen"
3219 install="install"
3220 ln_s_default="ln -s -f"
3221 nm_default="nm -g"
3222 objformat="elf"
3223 pkg_config_default=pkg-config
3224 ranlib_default="ranlib"
3225 strip_default="strip"
3226 version_script='--version-script'
3227 yasmexe_default="yasm"
3228 windres_default="windres"
3229
3230 # OS
3231 target_os_default=$(tolower $(uname -s))
3232 host_os=$target_os_default
3233
3234 # machine
3235 if test "$target_os_default" = aix; then
3236     arch_default=$(uname -p)
3237     strip_default="strip -X32_64"
3238 else
3239     arch_default=$(uname -m)
3240 fi
3241 cpu="generic"
3242 intrinsics="none"
3243
3244 # configurable options
3245 enable $PROGRAM_LIST
3246 enable $DOCUMENT_LIST
3247 enable $EXAMPLE_LIST
3248 enable $(filter_out avresample $LIBRARY_LIST)
3249 enable stripping
3250
3251 enable asm
3252 enable debug
3253 enable doc
3254 enable faan faandct faanidct
3255 enable optimizations
3256 enable runtime_cpudetect
3257 enable safe_bitstream_reader
3258 enable static
3259 enable swscale_alpha
3260 enable valgrind_backtrace
3261
3262 sws_max_filter_size_default=256
3263 set_default sws_max_filter_size
3264
3265 # build settings
3266 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3267 LIBPREF="lib"
3268 LIBSUF=".a"
3269 FULLNAME='$(NAME)$(BUILDSUF)'
3270 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3271 SLIBPREF="lib"
3272 SLIBSUF=".so"
3273 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3274 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3275 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3276 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3277 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3278 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3279 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3280
3281 asflags_filter=echo
3282 cflags_filter=echo
3283 ldflags_filter=echo
3284
3285 AS_C='-c'
3286 AS_O='-o $@'
3287 CC_C='-c'
3288 CC_E='-E -o $@'
3289 CC_O='-o $@'
3290 CXX_C='-c'
3291 CXX_O='-o $@'
3292 OBJCC_C='-c'
3293 OBJCC_E='-E -o $@'
3294 OBJCC_O='-o $@'
3295 LD_O='-o $@'
3296 LD_LIB='-l%'
3297 LD_PATH='-L'
3298 HOSTCC_C='-c'
3299 HOSTCC_E='-E -o $@'
3300 HOSTCC_O='-o $@'
3301 HOSTLD_O='-o $@'
3302
3303 host_libs='-lm'
3304 host_cflags_filter=echo
3305 host_ldflags_filter=echo
3306
3307 target_path='$(CURDIR)'
3308
3309 # since the object filename is not given with the -MM flag, the compiler
3310 # is only able to print the basename, and we must add the path ourselves
3311 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3312 DEPFLAGS='-MM'
3313
3314 # find source path
3315 if test -f configure; then
3316     source_path=.
3317 else
3318     source_path=$(cd $(dirname "$0"); pwd)
3319     case "$source_path" in
3320         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3321     esac
3322     test -e "$source_path/config.h" &&
3323         die "Out of tree builds are impossible with config.h in source dir."
3324 fi
3325
3326 for v in "$@"; do
3327     r=${v#*=}
3328     l=${v%"$r"}
3329     r=$(sh_quote "$r")
3330     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3331 done
3332
3333 find_things(){
3334     thing=$1
3335     pattern=$2
3336     file=$source_path/$3
3337     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3338 }
3339
3340 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3341 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3342 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3343 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3344 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3345 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3346 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3347 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3348 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3349
3350 find_things_extern(){
3351     thing=$1
3352     pattern=$2
3353     file=$source_path/$3
3354     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3355 }
3356
3357 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3358 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3359
3360 ALL_COMPONENTS="
3361     $BSF_LIST
3362     $DECODER_LIST
3363     $DEMUXER_LIST
3364     $ENCODER_LIST
3365     $FILTER_LIST
3366     $HWACCEL_LIST
3367     $INDEV_LIST
3368     $MUXER_LIST
3369     $OUTDEV_LIST
3370     $PARSER_LIST
3371     $PROTOCOL_LIST
3372 "
3373
3374 for n in $COMPONENT_LIST; do
3375     v=$(toupper ${n%s})_LIST
3376     eval enable \$$v
3377     eval ${n}_if_any="\$$v"
3378 done
3379
3380 enable $ARCH_EXT_LIST
3381
3382 die_unknown(){
3383     echo "Unknown option \"$1\"."
3384     echo "See $0 --help for available options."
3385     exit 1
3386 }
3387
3388 print_in_columns() {
3389     cols=$(expr $ncols / 24)
3390     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3391 }
3392
3393 show_list() {
3394     suffix=_$1
3395     shift
3396     echo $* | sed s/$suffix//g | print_in_columns
3397     exit 0
3398 }
3399
3400 rand_list(){
3401     IFS=', '
3402     set -- $*
3403     unset IFS
3404     for thing; do
3405         comp=${thing%:*}
3406         prob=${thing#$comp}
3407         prob=${prob#:}
3408         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3409         echo "prob ${prob:-0.5}"
3410         printf '%s\n' $comp
3411     done
3412 }
3413
3414 do_random(){
3415     action=$1
3416     shift
3417     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3418     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3419 }
3420
3421 for opt do
3422     optval="${opt#*=}"
3423     case "$opt" in
3424         --extra-ldflags=*)
3425             add_ldflags $optval
3426         ;;
3427         --extra-ldexeflags=*)
3428             add_ldexeflags $optval
3429         ;;
3430         --extra-ldlibflags=*)
3431             add_ldlibflags $optval
3432         ;;
3433         --extra-libs=*)
3434             add_extralibs $optval
3435         ;;
3436         --disable-devices)
3437             disable $INDEV_LIST $OUTDEV_LIST
3438         ;;
3439         --enable-debug=*)
3440             debuglevel="$optval"
3441         ;;
3442         --disable-programs)
3443             disable $PROGRAM_LIST
3444         ;;
3445         --disable-everything)
3446             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3447         ;;
3448         --disable-all)
3449             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3450             disable $LIBRARY_LIST $PROGRAM_LIST doc
3451             enable avutil
3452         ;;
3453         --enable-random|--disable-random)
3454             action=${opt%%-random}
3455             do_random ${action#--} $COMPONENT_LIST
3456         ;;
3457         --enable-random=*|--disable-random=*)
3458             action=${opt%%-random=*}
3459             do_random ${action#--} $optval
3460         ;;
3461         --enable-*=*|--disable-*=*)
3462             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3463             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3464             eval list=\$$(toupper $thing)_LIST
3465             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3466             list=$(filter "$name" $list)
3467             [ "$list" = "" ] && warn "Option $opt did not match anything"
3468             $action $list
3469         ;;
3470         --enable-?*|--disable-?*)
3471             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3472             if is_in $option $COMPONENT_LIST; then
3473                 test $action = disable && action=unset
3474                 eval $action \$$(toupper ${option%s})_LIST
3475             elif is_in $option $CMDLINE_SELECT; then
3476                 $action $option
3477             else
3478                 die_unknown $opt
3479             fi
3480         ;;
3481         --list-*)
3482             NAME="${opt#--list-}"
3483             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3484             NAME=${NAME%s}
3485             eval show_list $NAME \$$(toupper $NAME)_LIST
3486         ;;
3487         --help|-h) show_help
3488         ;;
3489         --fatal-warnings) enable fatal_warnings
3490         ;;
3491         *)
3492             optname="${opt%%=*}"
3493             optname="${optname#--}"
3494             optname=$(echo "$optname" | sed 's/-/_/g')
3495             if is_in $optname $CMDLINE_SET; then
3496                 eval $optname='$optval'
3497             elif is_in $optname $CMDLINE_APPEND; then
3498                 append $optname "$optval"
3499             else
3500                 die_unknown $opt
3501             fi
3502         ;;
3503     esac
3504 done
3505
3506 for e in $env; do
3507     eval "export $e"
3508 done
3509
3510 # Mark specifically enabled, but normally autodetected libraries as requested.
3511 for lib in $AUTODETECT_LIBS; do
3512     enabled $lib && request $lib
3513 done
3514
3515 # Enable platform codecs by default.
3516 enable_weak audiotoolbox
3517
3518 # Enable hwaccels by default.
3519 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3520 enable_weak xlib
3521
3522 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3523
3524 disabled logging && logfile=/dev/null
3525
3526 # Disable all the library-specific components if the library itself
3527 # is disabled, see AVCODEC_LIST and following _LIST variables.
3528
3529 disable_components(){
3530     disabled ${1} && disable $(
3531         eval components="\$$(toupper ${1})_COMPONENTS"
3532         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3533     )
3534 }
3535
3536 map 'disable_components $v' $LIBRARY_LIST
3537
3538 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3539 set >> $logfile
3540
3541 test -n "$valgrind" && toolchain="valgrind-memcheck"
3542
3543 case "$toolchain" in
3544     *-asan)
3545         cc_default="${toolchain%-asan}"
3546         add_cflags  -fsanitize=address
3547         add_ldflags -fsanitize=address
3548     ;;
3549     *-msan)
3550         cc_default="${toolchain%-msan}"
3551         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3552         add_ldflags -fsanitize=memory
3553     ;;
3554     *-tsan)
3555         cc_default="${toolchain%-tsan}"
3556         add_cflags  -fsanitize=thread -fPIE
3557         add_ldflags -fsanitize=thread -pie
3558         case "$toolchain" in
3559             gcc-tsan)
3560                 add_cflags  -fPIC
3561                 add_ldflags -fPIC
3562                 ;;
3563         esac
3564     ;;
3565     *-usan)
3566         cc_default="${toolchain%-usan}"
3567         add_cflags  -fsanitize=undefined
3568         add_ldflags -fsanitize=undefined
3569     ;;
3570     valgrind-*)
3571         target_exec_default="valgrind"
3572         case "$toolchain" in
3573             valgrind-massif)
3574                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3575                 ;;
3576             valgrind-memcheck)
3577                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3578                 ;;
3579         esac
3580     ;;
3581     msvc)
3582         # Check whether the current MSVC version needs the C99 converter.
3583         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3584         # support enough of C99 to build ffmpeg. Default to the new
3585         # behaviour if the regexp was unable to match anything, since this
3586         # successfully parses the version number of existing supported
3587         # versions that require the converter (MSVC 2010 and 2012).
3588         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3589         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3590             cc_default="cl"
3591         else
3592             cc_default="c99wrap cl"
3593         fi
3594         ld_default="$source_path/compat/windows/mslink"
3595         nm_default="dumpbin -symbols"
3596         ar_default="lib"
3597         case "$arch" in
3598         arm*)
3599             as_default="armasm"
3600             ;;
3601         esac
3602         target_os_default="win32"
3603         # Use a relative path for TMPDIR. This makes sure all the
3604         # ffconf temp files are written with a relative path, avoiding
3605         # issues with msys/win32 path conversion for MSVC parameters
3606         # such as -Fo<file> or -out:<file>.
3607         TMPDIR=.
3608     ;;
3609     icl)
3610         cc_default="icl"
3611         ld_default="xilink"
3612         nm_default="dumpbin -symbols"
3613         ar_default="xilib"
3614         target_os_default="win32"
3615         TMPDIR=.
3616     ;;
3617     gcov)
3618         add_cflags  -fprofile-arcs -ftest-coverage
3619         add_ldflags -fprofile-arcs -ftest-coverage
3620     ;;
3621     llvm-cov)
3622         add_cflags -fprofile-arcs -ftest-coverage
3623         add_ldflags --coverage
3624     ;;
3625     hardened)
3626         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3627         add_cflags   -fno-strict-overflow -fstack-protector-all
3628         add_ldflags  -Wl,-z,relro -Wl,-z,now
3629         add_cflags   -fPIE
3630         add_ldexeflags -fPIE -pie
3631     ;;
3632     ?*)
3633         die "Unknown toolchain $toolchain"
3634     ;;
3635 esac
3636
3637 test -n "$cross_prefix" && enable cross_compile
3638
3639 if enabled cross_compile; then
3640     test -n "$arch" && test -n "$target_os" ||
3641         die "Must specify target arch and OS when cross-compiling"
3642 fi
3643
3644 ar_default="${cross_prefix}${ar_default}"
3645 cc_default="${cross_prefix}${cc_default}"
3646 cxx_default="${cross_prefix}${cxx_default}"
3647 nm_default="${cross_prefix}${nm_default}"
3648 pkg_config_default="${cross_prefix}${pkg_config_default}"
3649 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3650     ranlib_default="${cross_prefix}${ranlib_default} -D"
3651 else
3652     ranlib_default="${cross_prefix}${ranlib_default}"
3653 fi
3654 strip_default="${cross_prefix}${strip_default}"
3655 windres_default="${cross_prefix}${windres_default}"
3656
3657 sysinclude_default="${sysroot}/usr/include"
3658
3659 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3660     target_exec target_os yasmexe
3661 enabled cross_compile || host_cc_default=$cc
3662 set_default host_cc
3663
3664 pkg_config_fail_message=""
3665 if ! $pkg_config --version >/dev/null 2>&1; then
3666     warn "$pkg_config not found, library detection may fail."
3667     pkg_config=false
3668 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3669     pkg_config_fail_message="
3670 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3671 fi
3672
3673 if test $doxygen != $doxygen_default && \
3674   ! $doxygen --version >/dev/null 2>&1; then
3675     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3676 fi
3677
3678 exesuf() {
3679     case $1 in
3680         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3681     esac
3682 }
3683
3684 EXESUF=$(exesuf $target_os)
3685 HOSTEXESUF=$(exesuf $host_os)
3686
3687 # set temporary file name
3688 : ${TMPDIR:=$TEMPDIR}
3689 : ${TMPDIR:=$TMP}
3690 : ${TMPDIR:=/tmp}
3691
3692 if [ -n "$tempprefix" ] ; then
3693     mktemp(){
3694         echo $tempprefix.${HOSTNAME}.${UID}
3695     }
3696 elif ! check_cmd mktemp -u XXXXXX; then
3697     # simple replacement for missing mktemp
3698     # NOT SAFE FOR GENERAL USE
3699     mktemp(){
3700         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3701     }
3702 fi
3703
3704 tmpfile(){
3705     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3706         (set -C; exec > $tmp) 2>/dev/null ||
3707         die "Unable to create temporary file in $TMPDIR."
3708     append TMPFILES $tmp
3709     eval $1=$tmp
3710 }
3711
3712 trap 'rm -f -- $TMPFILES' EXIT
3713
3714 tmpfile TMPASM .asm
3715 tmpfile TMPC   .c
3716 tmpfile TMPCPP .cpp
3717 tmpfile TMPE   $EXESUF
3718 tmpfile TMPH   .h
3719 tmpfile TMPM   .m
3720 tmpfile TMPO   .o
3721 tmpfile TMPS   .S
3722 tmpfile TMPSH  .sh
3723 tmpfile TMPV   .ver
3724
3725 unset -f mktemp
3726
3727 chmod +x $TMPE
3728
3729 # make sure we can execute files in $TMPDIR
3730 cat > $TMPSH 2>> $logfile <<EOF
3731 #! /bin/sh
3732 EOF
3733 chmod +x $TMPSH >> $logfile 2>&1
3734 if ! $TMPSH >> $logfile 2>&1; then
3735     cat <<EOF
3736 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3737 variable to another directory and make sure that it is not mounted noexec.
3738 EOF
3739     die "Sanity test failed."
3740 fi
3741
3742 armasm_flags(){
3743     for flag; do
3744         case $flag in
3745             # Filter out MSVC cl.exe options from cflags that shouldn't
3746             # be passed to gas-preprocessor
3747             -M[TD]*)                                            ;;
3748             *)                  echo $flag                      ;;
3749         esac
3750    done
3751 }
3752
3753 ccc_flags(){
3754     for flag; do
3755         case $flag in
3756             -std=c99)           echo -c99                       ;;
3757             -mcpu=*)            echo -arch ${flag#*=}           ;;
3758             -mieee)             echo -ieee                      ;;
3759             -O*|-fast)          echo $flag                      ;;
3760             -fno-math-errno)    echo -assume nomath_errno       ;;
3761             -g)                 echo -g3                        ;;
3762             -Wall)              echo -msg_enable level2         ;;
3763             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3764             -Wl,*)              echo $flag                      ;;
3765             -f*|-W*)                                            ;;
3766             *)                  echo $flag                      ;;
3767         esac
3768    done
3769 }
3770
3771 cparser_flags(){
3772     for flag; do
3773         case $flag in
3774             -Wno-switch)             echo -Wno-switch-enum ;;
3775             -Wno-format-zero-length) ;;
3776             -Wdisabled-optimization) ;;
3777             -Wno-pointer-sign)       echo -Wno-other ;;
3778             *)                       echo $flag ;;
3779         esac
3780     done
3781 }
3782
3783 msvc_common_flags(){
3784     for flag; do
3785         case $flag in
3786             # In addition to specifying certain flags under the compiler
3787             # specific filters, they must be specified here as well or else the
3788             # generic catch all at the bottom will print the original flag.
3789             -Wall)                ;;
3790             -std=c99)             ;;
3791             # Common flags
3792             -fomit-frame-pointer) ;;
3793             -g)                   echo -Z7 ;;
3794             -fno-math-errno)      ;;
3795             -fno-common)          ;;
3796             -fno-signed-zeros)    ;;
3797             -fPIC)                ;;
3798             -mthumb)              ;;
3799             -march=*)             ;;
3800             -lz)                  echo zlib.lib ;;
3801             -lavifil32)           echo vfw32.lib ;;
3802             -lavicap32)           echo vfw32.lib user32.lib ;;
3803             -lx264)               echo libx264.lib ;;
3804             -l*)                  echo ${flag#-l}.lib ;;
3805             -LARGEADDRESSAWARE)   echo $flag ;;
3806             -L*)                  echo -libpath:${flag#-L} ;;
3807             *)                    echo $flag ;;
3808         esac
3809     done
3810 }
3811
3812 msvc_flags(){
3813     msvc_common_flags "$@"
3814     for flag; do
3815         case $flag in
3816             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3817                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3818                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3819                                        -wd4307 \
3820                                        -wd4273 -wd4554 -wd4701 ;;
3821         esac
3822     done
3823 }
3824
3825 icl_flags(){
3826     msvc_common_flags "$@"
3827     for flag; do
3828         case $flag in
3829             # Despite what Intel's documentation says -Wall, which is supported
3830             # on Windows, does enable remarks so disable them here.
3831             -Wall)                echo $flag -Qdiag-disable:remark ;;
3832             -std=c99)             echo -Qstd=c99 ;;
3833             -flto)                echo -ipo ;;
3834         esac
3835     done
3836 }
3837
3838 icc_flags(){
3839     for flag; do
3840         case $flag in
3841             -flto)                echo -ipo ;;
3842             *)                    echo $flag ;;
3843         esac
3844     done
3845 }
3846
3847 pgi_flags(){
3848     for flag; do
3849         case $flag in
3850             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3851             -fomit-frame-pointer) echo -Mnoframe ;;
3852             -g)                   echo -gopt ;;
3853             *)                    echo $flag ;;
3854         esac
3855     done
3856 }
3857
3858 suncc_flags(){
3859     for flag; do
3860         case $flag in
3861             -march=*|-mcpu=*)
3862                 case "${flag#*=}" in
3863                     native)                   echo -xtarget=native       ;;
3864                     v9|niagara)               echo -xarch=sparc          ;;
3865                     ultrasparc)               echo -xarch=sparcvis       ;;
3866                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3867                     i586|pentium)             echo -xchip=pentium        ;;
3868                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3869                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3870                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3871                     pentium4*)          echo -xtarget=pentium4           ;;
3872                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3873                     *-sse3)             echo -xarch=sse3                 ;;
3874                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3875                     bonnell)                   echo -xarch=ssse3         ;;
3876                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3877                     westmere)                  echo -xtarget=westmere    ;;
3878                     silvermont)                echo -xarch=sse4_2        ;;
3879                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3880                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3881                                                echo -xarch=avx           ;;
3882                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3883                     btver1)                    echo -xarch=amdsse4a      ;;
3884                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3885                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3886                     k8|opteron|athlon64|athlon-fx)
3887                                                echo -xarch=sse2a         ;;
3888                     athlon*)                   echo -xarch=pentium_proa  ;;
3889                 esac
3890                 ;;
3891             -std=c99)             echo -xc99              ;;
3892             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3893             -fPIC)                echo -KPIC -xcode=pic32 ;;
3894             -W*,*)                echo $flag              ;;
3895             -f*-*|-W*|-mimpure-text)                      ;;
3896             -shared)              echo -G                 ;;
3897             *)                    echo $flag              ;;
3898         esac
3899     done
3900 }
3901
3902 tms470_flags(){
3903     for flag; do
3904         case $flag in
3905             -march=*|-mcpu=*)
3906                 case "${flag#*=}" in
3907                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3908                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3909                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3910                     armv6*|arm11*)          echo -mv=6   ;;
3911                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3912                                             echo -mv=5e  ;;
3913                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3914                 esac
3915                 ;;
3916             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3917             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3918             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3919             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3920             -msoft-float)   echo --float_support=vfplib       ;;
3921             -O[0-3]|-mf=*)  echo $flag                        ;;
3922             -g)             echo -g -mn                       ;;
3923             -pds=*)         echo $flag                        ;;
3924             -D*|-I*)        echo $flag                        ;;
3925             --gcc|--abi=*)  echo $flag                        ;;
3926             -me)            echo $flag                        ;;
3927         esac
3928     done
3929 }
3930
3931 probe_cc(){
3932     pfx=$1
3933     _cc=$2
3934     first=$3
3935
3936     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3937     unset _ld_o _ldflags _ld_lib _ld_path
3938     unset _depflags _DEPCMD _DEPFLAGS
3939     _flags_filter=echo
3940
3941     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3942         true # no-op to avoid reading stdin in following checks
3943     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3944         _type=llvm_gcc
3945         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3946         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3947         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3948         _cflags_speed='-O3'
3949         _cflags_size='-Os'
3950     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3951         _type=gcc
3952         gcc_version=$($_cc --version | head -n1)
3953         gcc_basever=$($_cc -dumpversion)
3954         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3955         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3956         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3957         case $gcc_basever in
3958             2) ;;
3959             2.*) ;;
3960             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3961         esac
3962         if [ "$first" = true ]; then
3963             case $gcc_basever in
3964                 4.2*)
3965                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3966             esac
3967         fi
3968         _cflags_speed='-O3'
3969         _cflags_size='-Os'
3970     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3971         _type=icc
3972         _ident=$($_cc --version | head -n1)
3973         _depflags='-MMD'
3974         _cflags_speed='-O3'
3975         _cflags_size='-Os'
3976         _cflags_noopt='-O1'
3977         _flags_filter=icc_flags
3978     elif $_cc -v 2>&1 | grep -q xlc; then
3979         _type=xlc
3980         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3981         _cflags_speed='-O5'
3982         _cflags_size='-O5 -qcompact'
3983     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3984         _type=ccc
3985         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3986         _DEPFLAGS='-M'
3987         _cflags_speed='-fast'
3988         _cflags_size='-O1'
3989         _flags_filter=ccc_flags
3990     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3991         test -d "$sysroot" || die "No valid sysroot specified."
3992         _type=armcc
3993         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3994         armcc_conf="$PWD/armcc.conf"
3995         $_cc --arm_linux_configure                 \
3996              --arm_linux_config_file="$armcc_conf" \
3997              --configure_sysroot="$sysroot"        \
3998              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3999              die "Error creating armcc configuration file."
4000         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4001         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4002         as_default="${cross_prefix}gcc"
4003         _depflags='-MMD'
4004         _cflags_speed='-O3'
4005         _cflags_size='-Os'
4006     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4007         _type=tms470
4008         _ident=$($_cc -version | head -n1 | tr -s ' ')
4009         _flags='--gcc --abi=eabi -me'
4010         _cc_e='-ppl -fe=$@'
4011         _cc_o='-fe=$@'
4012         _depflags='-ppa -ppd=$(@:.o=.d)'
4013         _cflags_speed='-O3 -mf=5'
4014         _cflags_size='-O3 -mf=2'
4015         _flags_filter=tms470_flags
4016     elif $_cc -v 2>&1 | grep -q clang; then
4017         _type=clang
4018         _ident=$($_cc --version 2>/dev/null | head -n1)
4019         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4020         _cflags_speed='-O3'
4021         _cflags_size='-Os'
4022     elif $_cc -V 2>&1 | grep -q Sun; then
4023         _type=suncc
4024         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4025         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4026         _DEPFLAGS='-xM1 -xc99'
4027         _ldflags='-std=c99'
4028         _cflags_speed='-O5'
4029         _cflags_size='-O5 -xspace'
4030         _flags_filter=suncc_flags
4031     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4032         _type=pathscale
4033         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4034         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4035         _cflags_speed='-O2'
4036         _cflags_size='-Os'
4037         _flags_filter='filter_out -Wdisabled-optimization'
4038     elif $_cc -v 2>&1 | grep -q Open64; then
4039         _type=open64
4040         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4041         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4042         _cflags_speed='-O2'
4043         _cflags_size='-Os'
4044         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4045     elif $_cc -V 2>&1 | grep -q Portland; then
4046         _type=pgi
4047         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4048         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4049         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4050         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4051         _cflags_noopt="-O"
4052         _flags_filter=pgi_flags
4053     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4054         _type=armasm
4055         _ident=$($_cc | head -n1)
4056         # 4509: "This form of conditional instruction is deprecated"
4057         _flags="-nologo -ignore 4509"
4058         _flags_filter=armasm_flags
4059     elif $_cc 2>&1 | grep -q Intel; then
4060         _type=icl
4061         _ident=$($_cc 2>&1 | head -n1)
4062         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4063         # Not only is O3 broken on 13.x+ but it is slower on all previous
4064         # versions (tested) as well.
4065         _cflags_speed="-O2"
4066         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4067         if $_cc 2>&1 | grep -q Linker; then
4068             _ld_o='-out:$@'
4069         else
4070             _ld_o='-Fe$@'
4071         fi
4072         _cc_o='-Fo$@'
4073         _cc_e='-P'
4074         _flags_filter=icl_flags
4075         _ld_lib='lib%.a'
4076         _ld_path='-libpath:'
4077         # -Qdiag-error to make icl error when seeing certain unknown arguments
4078         _flags='-nologo -Qdiag-error:4044,10157'
4079         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4080         # with MSVC which enables it by default.
4081         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4082         disable stripping
4083     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4084         _type=msvc
4085         _ident=$($_cc 2>&1 | head -n1)
4086         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4087         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4088         _cflags_speed="-O2"
4089         _cflags_size="-O