Merge commit '6ef3360a38efe027cb6ebf9785870048ca7eb38b'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112   --enable-raise-major     increase major version numbers in sonames [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188
189 External library support:
190
191   Using any of the following switches will allow FFmpeg to link to the
192   corresponding external library. All the components depending on that library
193   will become enabled, if all their other dependencies are met and they are not
194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
195   libwavpack and allow the libwavpack encoder to be built, unless it is
196   specifically disabled with --disable-encoder=libwavpack.
197
198   Note that only the system libraries are auto-detected. All the other external
199   libraries must be explicitly enabled.
200
201   Also note that the following help text describes the purpose of the libraries
202   themselves, not all their features will necessarily be usable by FFmpeg.
203
204   --enable-avisynth        enable reading of AviSynth script files [no]
205   --disable-bzlib          disable bzlib [autodetect]
206   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
207   --enable-frei0r          enable frei0r video filtering [no]
208   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
209                            if openssl, librtmp or gmp is not used [no]
210   --enable-gmp             enable gmp, needed for rtmp(t)e support
211                            if openssl or librtmp is not used [no]
212   --enable-gnutls          enable gnutls, needed for https support
213                            if openssl is not used [no]
214   --disable-iconv          disable iconv [autodetect]
215   --enable-jni             enable JNI support [no]
216   --enable-ladspa          enable LADSPA audio filtering [no]
217   --enable-libass          enable libass subtitles rendering,
218                            needed for subtitles and ass filter [no]
219   --enable-libbluray       enable BluRay reading using libbluray [no]
220   --enable-libbs2b         enable bs2b DSP library [no]
221   --enable-libcaca         enable textual display using libcaca [no]
222   --enable-libcelt         enable CELT decoding via libcelt [no]
223   --enable-libcdio         enable audio CD grabbing with libcdio [no]
224   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
225                            and libraw1394 [no]
226   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
227   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
228   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
229   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
230   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
231   --enable-libgme          enable Game Music Emu via libgme [no]
232   --enable-libgsm          enable GSM de/encoding via libgsm [no]
233   --enable-libiec61883     enable iec61883 via libiec61883 [no]
234   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
235   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
236   --enable-libmodplug      enable ModPlug via libmodplug [no]
237   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
238   --enable-libnut          enable NUT (de)muxing via libnut,
239                            native (de)muxer exists [no]
240   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
241   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
242   --enable-libopencv       enable video filtering via libopencv [no]
243   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
244   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
245   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
246   --enable-libopus         enable Opus de/encoding via libopus [no]
247   --enable-libpulse        enable Pulseaudio input via libpulse [no]
248   --enable-librubberband   enable rubberband needed for rubberband filter [no]
249   --enable-librtmp         enable RTMP[E] support via librtmp [no]
250   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
251   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
252   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
253   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
254   --enable-libsoxr         enable Include libsoxr resampling [no]
255   --enable-libspeex        enable Speex de/encoding via libspeex [no]
256   --enable-libssh          enable SFTP protocol via libssh [no]
257   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
258   --enable-libtheora       enable Theora encoding via libtheora [no]
259   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
260   --enable-libv4l2         enable libv4l2/v4l-utils [no]
261   --enable-libvidstab      enable video stabilization using vid.stab [no]
262   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
263   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
264                            native implementation exists [no]
265   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
266   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
267   --enable-libwebp         enable WebP encoding via libwebp [no]
268   --enable-libx264         enable H.264 encoding via x264 [no]
269   --enable-libx265         enable HEVC encoding via x265 [no]
270   --enable-libxavs         enable AVS encoding via xavs [no]
271   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
272   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
273   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
274   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
275   --enable-libxvid         enable Xvid encoding via xvidcore,
276                            native MPEG-4/Xvid encoder exists [no]
277   --enable-libzimg         enable z.lib, needed for zscale filter [no]
278   --enable-libzmq          enable message passing via libzmq [no]
279   --enable-libzvbi         enable teletext support via libzvbi [no]
280   --disable-lzma           disable lzma [autodetect]
281   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
282   --enable-mediacodec      enable Android MediaCodec support [no]
283   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl2           disable sdl2 [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --disable-xlib           disable xlib [autodetect]
295   --disable-zlib           disable zlib [autodetect]
296
297   The following libraries provide various hardware acceleration features:
298   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
299   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
300   --disable-cuvid          disable Nvidia CUVID support [autodetect]
301   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
302   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
303   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
304   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
305   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
306   --disable-nvenc          disable Nvidia video encoding code [autodetect]
307   --enable-omx             enable OpenMAX IL code [no]
308   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
309   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
310   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
311   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
312   --disable-videotoolbox   disable VideoToolbox code [autodetect]
313
314 Toolchain options:
315   --arch=ARCH              select architecture [$arch]
316   --cpu=CPU                select the minimum required CPU (affects
317                            instruction selection, may crash on older CPUs)
318   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
319   --progs-suffix=SUFFIX    program name suffix []
320   --enable-cross-compile   assume a cross-compiler is used
321   --sysroot=PATH           root of cross-build tree
322   --sysinclude=PATH        location of cross-build system headers
323   --target-os=OS           compiler targets OS [$target_os]
324   --target-exec=CMD        command to run executables on target
325   --target-path=DIR        path to view of build directory on target
326   --target-samples=DIR     path to samples directory on target
327   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
328   --toolchain=NAME         set tool defaults according to NAME
329   --nm=NM                  use nm tool NM [$nm_default]
330   --ar=AR                  use archive tool AR [$ar_default]
331   --as=AS                  use assembler AS [$as_default]
332   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
333   --strip=STRIP            use strip tool STRIP [$strip_default]
334   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
335   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
336   --cc=CC                  use C compiler CC [$cc_default]
337   --cxx=CXX                use C compiler CXX [$cxx_default]
338   --objcc=OCC              use ObjC compiler OCC [$cc_default]
339   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
340   --ld=LD                  use linker LD [$ld_default]
341   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
342   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
343   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
344   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
345   --host-cc=HOSTCC         use host C compiler HOSTCC
346   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
347   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
348   --host-ld=HOSTLD         use host linker HOSTLD
349   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
350   --host-libs=HLIBS        use libs HLIBS when linking for host
351   --host-os=OS             compiler host OS [$target_os]
352   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
353   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
354   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
355   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
356   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
357   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
358   --extra-libs=ELIBS       add ELIBS [$ELIBS]
359   --extra-version=STRING   version string suffix []
360   --optflags=OPTFLAGS      override optimization-related compiler flags
361   --build-suffix=SUFFIX    library name suffix []
362   --enable-pic             build position-independent code
363   --enable-thumb           compile for Thumb instruction set
364   --enable-lto             use link-time optimization
365   --env="ENV=override"     override the environment variables
366
367 Advanced options (experts only):
368   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
369   --custom-allocator=NAME  use a supported custom allocator
370   --disable-symver         disable symbol versioning
371   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
372   --disable-safe-bitstream-reader
373                            disable buffer boundary checking in bitreaders
374                            (faster, but may crash)
375   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
376
377 Optimization options (experts only):
378   --disable-asm            disable all assembly optimizations
379   --disable-altivec        disable AltiVec optimizations
380   --disable-vsx            disable VSX optimizations
381   --disable-power8         disable POWER8 optimizations
382   --disable-amd3dnow       disable 3DNow! optimizations
383   --disable-amd3dnowext    disable 3DNow! extended optimizations
384   --disable-mmx            disable MMX optimizations
385   --disable-mmxext         disable MMXEXT optimizations
386   --disable-sse            disable SSE optimizations
387   --disable-sse2           disable SSE2 optimizations
388   --disable-sse3           disable SSE3 optimizations
389   --disable-ssse3          disable SSSE3 optimizations
390   --disable-sse4           disable SSE4 optimizations
391   --disable-sse42          disable SSE4.2 optimizations
392   --disable-avx            disable AVX optimizations
393   --disable-xop            disable XOP optimizations
394   --disable-fma3           disable FMA3 optimizations
395   --disable-fma4           disable FMA4 optimizations
396   --disable-avx2           disable AVX2 optimizations
397   --disable-aesni          disable AESNI optimizations
398   --disable-armv5te        disable armv5te optimizations
399   --disable-armv6          disable armv6 optimizations
400   --disable-armv6t2        disable armv6t2 optimizations
401   --disable-vfp            disable VFP optimizations
402   --disable-neon           disable NEON optimizations
403   --disable-inline-asm     disable use of inline assembly
404   --disable-yasm           disable use of nasm/yasm assembly
405   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
406   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
407   --disable-msa            disable MSA optimizations
408   --disable-mipsfpu        disable floating point MIPS optimizations
409   --disable-mmi            disable Loongson SIMD optimizations
410   --disable-fast-unaligned consider unaligned accesses slow
411
412 Developer options (useful when working on FFmpeg itself):
413   --disable-debug          disable debugging symbols
414   --enable-debug=LEVEL     set the debug level [$debuglevel]
415   --disable-optimizations  disable compiler optimizations
416   --enable-extra-warnings  enable more compiler warnings
417   --disable-stripping      disable stripping of executables and shared libraries
418   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
419                            2 causes a slowdown at runtime.
420   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
421   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
422                            leaks and errors, using the specified valgrind binary.
423                            Cannot be combined with --target-exec
424   --enable-ftrapv          Trap arithmetic overflows
425   --samples=PATH           location of test samples for FATE, if not set use
426                            \$FATE_SAMPLES at make invocation time.
427   --enable-neon-clobber-test check NEON registers for clobbering (should be
428                            used only for debugging purposes)
429   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
430                            should be used only for debugging purposes)
431   --enable-random          randomly enable/disable components
432   --disable-random
433   --enable-random=LIST     randomly enable/disable specific components or
434   --disable-random=LIST    component groups. LIST is a comma-separated list
435                            of NAME[:PROB] entries where NAME is a component
436                            (group) and PROB the probability associated with
437                            NAME (default 0.5).
438   --random-seed=VALUE      seed value for --enable/disable-random
439   --disable-valgrind-backtrace do not print a backtrace under Valgrind
440                            (only applies to --disable-optimizations builds)
441
442 NOTE: Object files are built at the place where configure is launched.
443 EOF
444   exit 0
445 }
446
447 quotes='""'
448 if test -t 1 && which tput >/dev/null 2>&1; then
449     ncolors=$(tput colors)
450     if test -n "$ncolors" && test $ncolors -ge 8; then
451         bold_color=$(tput bold)
452         warn_color=$(tput setaf 3)
453         error_color=$(tput setaf 1)
454         reset_color=$(tput sgr0)
455     fi
456     # 72 used instead of 80 since that's the default of pr
457     ncols=$(tput cols)
458 fi
459 : ${ncols:=72}
460
461 log(){
462     echo "$@" >> $logfile
463 }
464
465 log_file(){
466     log BEGIN $1
467     pr -n -t $1 >> $logfile
468     log END $1
469 }
470
471 warn(){
472     log "WARNING: $*"
473     WARNINGS="${WARNINGS}WARNING: $*\n"
474 }
475
476 die(){
477     log "$@"
478     echo "$error_color$bold_color$@$reset_color"
479     cat <<EOF
480
481 If you think configure made a mistake, make sure you are using the latest
482 version from Git.  If the latest version fails, report the problem to the
483 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
484 EOF
485     if disabled logging; then
486         cat <<EOF
487 Rerun configure with logging enabled (do not use --disable-logging), and
488 include the log this produces with your report.
489 EOF
490     else
491         cat <<EOF
492 Include the log file "$logfile" produced by configure as this will help
493 solve the problem.
494 EOF
495     fi
496     exit 1
497 }
498
499 # Avoid locale weirdness, besides we really just want to translate ASCII.
500 toupper(){
501     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
502 }
503
504 tolower(){
505     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
506 }
507
508 c_escape(){
509     echo "$*" | sed 's/["\\]/\\\0/g'
510 }
511
512 sh_quote(){
513     v=$(echo "$1" | sed "s/'/'\\\\''/g")
514     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
515     echo "$v"
516 }
517
518 cleanws(){
519     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
520 }
521
522 filter(){
523     pat=$1
524     shift
525     for v; do
526         eval "case $v in $pat) printf '%s ' $v ;; esac"
527     done
528 }
529
530 filter_out(){
531     pat=$1
532     shift
533     for v; do
534         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
535     done
536 }
537
538 map(){
539     m=$1
540     shift
541     for v; do eval $m; done
542 }
543
544 add_suffix(){
545     suffix=$1
546     shift
547     for v; do echo ${v}${suffix}; done
548 }
549
550 set_all(){
551     value=$1
552     shift
553     for var in $*; do
554         eval $var=$value
555     done
556 }
557
558 set_weak(){
559     value=$1
560     shift
561     for var; do
562         eval : \${$var:=$value}
563     done
564 }
565
566 sanitize_var_name(){
567     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
568 }
569
570 set_safe(){
571     var=$1
572     shift
573     eval $(sanitize_var_name "$var")='$*'
574 }
575
576 get_safe(){
577     eval echo \$$(sanitize_var_name "$1")
578 }
579
580 pushvar(){
581     for pvar in $*; do
582         eval level=\${${pvar}_level:=0}
583         eval ${pvar}_${level}="\$$pvar"
584         eval ${pvar}_level=$(($level+1))
585     done
586 }
587
588 popvar(){
589     for pvar in $*; do
590         eval level=\${${pvar}_level:-0}
591         test $level = 0 && continue
592         eval level=$(($level-1))
593         eval $pvar="\${${pvar}_${level}}"
594         eval ${pvar}_level=$level
595         eval unset ${pvar}_${level}
596     done
597 }
598
599 request(){
600     for var in $*; do
601         eval ${var}_requested=yes
602         eval $var=
603     done
604 }
605
606 enable(){
607     set_all yes $*
608 }
609
610 disable(){
611     set_all no $*
612 }
613
614 enable_weak(){
615     set_weak yes $*
616 }
617
618 disable_weak(){
619     set_weak no $*
620 }
621
622 enable_safe(){
623     for var; do
624         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
625     done
626 }
627
628 disable_safe(){
629     for var; do
630         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
631     done
632 }
633
634 do_enable_deep(){
635     for var; do
636         enabled $var && continue
637         eval sel="\$${var}_select"
638         eval sgs="\$${var}_suggest"
639         pushvar var sgs
640         enable_deep $sel
641         popvar sgs
642         enable_deep_weak $sgs
643         popvar var
644     done
645 }
646
647 enable_deep(){
648     do_enable_deep $*
649     enable $*
650 }
651
652 enable_deep_weak(){
653     for var; do
654         disabled $var && continue
655         pushvar var
656         do_enable_deep $var
657         popvar var
658         enable_weak $var
659     done
660 }
661
662 requested(){
663     test "${1#!}" = "$1" && op='=' || op=!=
664     eval test "x\$${1#!}_requested" $op "xyes"
665 }
666
667 enabled(){
668     test "${1#!}" = "$1" && op='=' || op=!=
669     eval test "x\$${1#!}" $op "xyes"
670 }
671
672 disabled(){
673     test "${1#!}" = "$1" && op='=' || op=!=
674     eval test "x\$${1#!}" $op "xno"
675 }
676
677 enabled_all(){
678     for opt; do
679         enabled $opt || return 1
680     done
681 }
682
683 disabled_all(){
684     for opt; do
685         disabled $opt || return 1
686     done
687 }
688
689 enabled_any(){
690     for opt; do
691         enabled $opt && return 0
692     done
693 }
694
695 disabled_any(){
696     for opt; do
697         disabled $opt && return 0
698     done
699     return 1
700 }
701
702 set_default(){
703     for opt; do
704         eval : \${$opt:=\$${opt}_default}
705     done
706 }
707
708 is_in(){
709     value=$1
710     shift
711     for var in $*; do
712         [ $var = $value ] && return 0
713     done
714     return 1
715 }
716
717 do_check_deps(){
718     for cfg; do
719         cfg="${cfg#!}"
720         enabled ${cfg}_checking && die "Circular dependency for $cfg."
721         disabled ${cfg}_checking && continue
722         enable ${cfg}_checking
723         append allopts $cfg
724
725         eval dep_all="\$${cfg}_deps"
726         eval dep_any="\$${cfg}_deps_any"
727         eval dep_sel="\$${cfg}_select"
728         eval dep_sgs="\$${cfg}_suggest"
729         eval dep_ifa="\$${cfg}_if"
730         eval dep_ifn="\$${cfg}_if_any"
731
732         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
733         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
734         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
735
736         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
737         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
738         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
739         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
740         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
741
742         if enabled $cfg; then
743             enable_deep $dep_sel
744             enable_deep_weak $dep_sgs
745         fi
746
747         disable ${cfg}_checking
748     done
749 }
750
751 check_deps(){
752     unset allopts
753
754     do_check_deps "$@"
755
756     for cfg in $allopts; do
757         enabled $cfg || continue
758         eval dep_extralibs="\$${cfg}_extralibs"
759         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
760     done
761 }
762
763 print_config(){
764     pfx=$1
765     files=$2
766     shift 2
767     map 'eval echo "$v \${$v:-no}"' "$@" |
768     awk "BEGIN { split(\"$files\", files) }
769         {
770             c = \"$pfx\" toupper(\$1);
771             v = \$2;
772             sub(/yes/, 1, v);
773             sub(/no/,  0, v);
774             for (f in files) {
775                 file = files[f];
776                 if (file ~ /\\.h\$/) {
777                     printf(\"#define %s %d\\n\", c, v) >>file;
778                 } else if (file ~ /\\.asm\$/) {
779                     printf(\"%%define %s %d\\n\", c, v) >>file;
780                 } else if (file ~ /\\.mak\$/) {
781                     n = -v ? \"\" : \"!\";
782                     printf(\"%s%s=yes\\n\", n, c) >>file;
783                 } else if (file ~ /\\.texi\$/) {
784                     pre = -v ? \"\" : \"@c \";
785                     yesno = \$2;
786                     c2 = tolower(c);
787                     gsub(/_/, \"-\", c2);
788                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
789                 }
790             }
791         }"
792 }
793
794 print_enabled(){
795     suf=$1
796     shift
797     for v; do
798         enabled $v && printf "%s\n" ${v%$suf}
799     done
800 }
801
802 append(){
803     var=$1
804     shift
805     eval "$var=\"\$$var $*\""
806 }
807
808 prepend(){
809     var=$1
810     shift
811     eval "$var=\"$* \$$var\""
812 }
813
814 unique(){
815     var=$1
816     uniq_list=""
817     for tok in $(eval echo \$$var); do
818         uniq_list="$(filter_out $tok $uniq_list) $tok"
819     done
820     eval "$var=\"${uniq_list}\""
821 }
822
823 add_cppflags(){
824     append CPPFLAGS "$@"
825 }
826
827 add_cflags(){
828     append CFLAGS $($cflags_filter "$@")
829 }
830
831 add_cxxflags(){
832     append CXXFLAGS $($cflags_filter "$@")
833 }
834
835 add_asflags(){
836     append ASFLAGS $($asflags_filter "$@")
837 }
838
839 add_objcflags(){
840     append OBJCFLAGS $($objcflags_filter "$@")
841 }
842
843 add_ldflags(){
844     append LDFLAGS $($ldflags_filter "$@")
845 }
846
847 add_ldexeflags(){
848     append LDEXEFLAGS $($ldflags_filter "$@")
849 }
850
851 add_ldlibflags(){
852     append LDLIBFLAGS $($ldflags_filter "$@")
853 }
854
855 add_stripflags(){
856     append ASMSTRIPFLAGS "$@"
857 }
858
859 add_extralibs(){
860     prepend extralibs $($ldflags_filter "$@")
861 }
862
863 add_host_cppflags(){
864     append host_cppflags "$@"
865 }
866
867 add_host_cflags(){
868     append host_cflags $($host_cflags_filter "$@")
869 }
870
871 add_host_ldflags(){
872     append host_ldflags $($host_ldflags_filter "$@")
873 }
874
875 add_compat(){
876     append compat_objs $1
877     shift
878     map 'add_cppflags -D$v' "$@"
879 }
880
881 check_cmd(){
882     log "$@"
883     "$@" >> $logfile 2>&1
884 }
885
886 check_stat(){
887     log check_stat "$@"
888     stat "$1" >> $logfile 2>&1
889 }
890
891 cc_o(){
892     eval printf '%s\\n' $CC_O
893 }
894
895 cc_e(){
896     eval printf '%s\\n' $CC_E
897 }
898
899 check_cc(){
900     log check_cc "$@"
901     cat > $TMPC
902     log_file $TMPC
903     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
904 }
905
906 check_cxx(){
907     log check_cxx "$@"
908     cat > $TMPCPP
909     log_file $TMPCPP
910     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
911 }
912
913 check_objcc(){
914     log check_objcc "$@"
915     cat > $TMPM
916     log_file $TMPM
917     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
918 }
919
920 check_cpp(){
921     log check_cpp "$@"
922     cat > $TMPC
923     log_file $TMPC
924     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
925 }
926
927 as_o(){
928     eval printf '%s\\n' $AS_O
929 }
930
931 check_as(){
932     log check_as "$@"
933     cat > $TMPS
934     log_file $TMPS
935     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
936 }
937
938 check_inline_asm(){
939     log check_inline_asm "$@"
940     name="$1"
941     code="$2"
942     shift 2
943     disable $name
944     check_cc "$@" <<EOF && enable $name
945 void foo(void){ __asm__ volatile($code); }
946 EOF
947 }
948
949 check_inline_asm_flags(){
950     log check_inline_asm_flags "$@"
951     name="$1"
952     code="$2"
953     flags=''
954     shift 2
955     while [ "$1" != "" ]; do
956       append flags $1
957       shift
958     done;
959     disable $name
960     cat > $TMPC <<EOF
961 void foo(void){ __asm__ volatile($code); }
962 EOF
963     log_file $TMPC
964     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
965     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
966 }
967
968 check_insn(){
969     log check_insn "$@"
970     check_inline_asm ${1}_inline "\"$2\""
971     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
972 }
973
974 check_yasm(){
975     log check_yasm "$@"
976     echo "$1" > $TMPS
977     log_file $TMPS
978     shift 1
979     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
980 }
981
982 ld_o(){
983     eval printf '%s\\n' $LD_O
984 }
985
986 check_ld(){
987     log check_ld "$@"
988     type=$1
989     shift 1
990     flags=$(filter_out '-l*|*.so' $@)
991     libs=$(filter '-l*|*.so' $@)
992     check_$type $($cflags_filter $flags) || return
993     flags=$($ldflags_filter $flags)
994     libs=$($ldflags_filter $libs)
995     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
996 }
997
998 print_include(){
999     hdr=$1
1000     test "${hdr%.h}" = "${hdr}" &&
1001         echo "#include $hdr"    ||
1002         echo "#include <$hdr>"
1003 }
1004
1005 check_code(){
1006     log check_code "$@"
1007     check=$1
1008     headers=$2
1009     code=$3
1010     shift 3
1011     {
1012         for hdr in $headers; do
1013             print_include $hdr
1014         done
1015         echo "int main(void) { $code; return 0; }"
1016     } | check_$check "$@"
1017 }
1018
1019 check_cppflags(){
1020     log check_cppflags "$@"
1021     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1022 int x;
1023 EOF
1024 }
1025
1026 test_cflags(){
1027     log test_cflags "$@"
1028     set -- $($cflags_filter "$@")
1029     check_cc "$@" <<EOF
1030 int x;
1031 EOF
1032 }
1033
1034 check_cflags(){
1035     log check_cflags "$@"
1036     test_cflags "$@" && add_cflags "$@"
1037 }
1038
1039 check_cxxflags(){
1040     log check_cxxflags "$@"
1041     set -- $($cflags_filter "$@")
1042     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 test_objcflags(){
1048     log test_objcflags "$@"
1049     set -- $($objcflags_filter "$@")
1050     check_objcc "$@" <<EOF
1051 int x;
1052 EOF
1053 }
1054
1055 check_objcflags(){
1056     log check_objcflags "$@"
1057     test_objcflags "$@" && add_objcflags "$@"
1058 }
1059
1060 test_ldflags(){
1061     log test_ldflags "$@"
1062     check_ld "cc" "$@" <<EOF
1063 int main(void){ return 0; }
1064 EOF
1065 }
1066
1067 check_ldflags(){
1068     log check_ldflags "$@"
1069     test_ldflags "$@" && add_ldflags "$@"
1070 }
1071
1072 test_stripflags(){
1073     log test_stripflags "$@"
1074     # call check_cc to get a fresh TMPO
1075     check_cc <<EOF
1076 int main(void) { return 0; }
1077 EOF
1078     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1079 }
1080
1081 check_stripflags(){
1082     log check_stripflags "$@"
1083     test_stripflags "$@" && add_stripflags "$@"
1084 }
1085
1086 check_header(){
1087     log check_header "$@"
1088     header=$1
1089     shift
1090     disable_safe $header
1091     check_cpp "$@" <<EOF && enable_safe $header
1092 #include <$header>
1093 int x;
1094 EOF
1095 }
1096
1097 check_header_objcc(){
1098     log check_header_objcc "$@"
1099     rm -f -- "$TMPO"
1100     header=$1
1101     shift
1102     disable_safe $header
1103     {
1104        echo "#include <$header>"
1105        echo "int main(void) { return 0; }"
1106     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1107 }
1108
1109 check_func(){
1110     log check_func "$@"
1111     func=$1
1112     shift
1113     disable $func
1114     check_ld "cc" "$@" <<EOF && enable $func
1115 extern int $func();
1116 int main(void){ $func(); }
1117 EOF
1118 }
1119
1120 check_complexfunc(){
1121     log check_complexfunc "$@"
1122     func=$1
1123     narg=$2
1124     shift 2
1125     test $narg = 2 && args="f, g" || args="f * I"
1126     disable $func
1127     check_ld "cc" "$@" <<EOF && enable $func
1128 #include <complex.h>
1129 #include <math.h>
1130 float foo(complex float f, complex float g) { return $func($args); }
1131 int main(void){ return (int) foo; }
1132 EOF
1133 }
1134
1135 check_mathfunc(){
1136     log check_mathfunc "$@"
1137     func=$1
1138     narg=$2
1139     shift 2
1140     test $narg = 2 && args="f, g" || args="f"
1141     disable $func
1142     check_ld "cc" "$@" <<EOF && enable $func
1143 #include <math.h>
1144 float foo(float f, float g) { return $func($args); }
1145 int main(void){ return (int) foo; }
1146 EOF
1147 }
1148
1149 check_func_headers(){
1150     log check_func_headers "$@"
1151     headers=$1
1152     funcs=$2
1153     shift 2
1154     {
1155         for hdr in $headers; do
1156             print_include $hdr
1157         done
1158         echo "#include <stdint.h>"
1159         for func in $funcs; do
1160             echo "long check_$func(void) { return (long) $func; }"
1161         done
1162         echo "int main(void) { int ret = 0;"
1163         # LTO could optimize out the test functions without this
1164         for func in $funcs; do
1165             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1166         done
1167         echo "return ret; }"
1168     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1169 }
1170
1171 check_class_headers_cpp(){
1172     log check_class_headers_cpp "$@"
1173     headers=$1
1174     classes=$2
1175     shift 2
1176     {
1177         for hdr in $headers; do
1178             echo "#include <$hdr>"
1179         done
1180         echo "int main(void) { "
1181         i=1
1182         for class in $classes; do
1183             echo "$class obj$i;"
1184             i=$(expr $i + 1)
1185         done
1186         echo "return 0; }"
1187     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1188 }
1189
1190 check_cpp_condition(){
1191     log check_cpp_condition "$@"
1192     header=$1
1193     condition=$2
1194     shift 2
1195     check_cpp "$@" <<EOF
1196 #include <$header>
1197 #if !($condition)
1198 #error "unsatisfied condition: $condition"
1199 #endif
1200 EOF
1201 }
1202
1203 test_cflags_cc(){
1204     log test_cflags_cc "$@"
1205     flags=$1
1206     header=$2
1207     condition=$3
1208     shift 3
1209     set -- $($cflags_filter "$flags")
1210     check_cc "$@" <<EOF
1211 #include <$header>
1212 #if !($condition)
1213 #error "unsatisfied condition: $condition"
1214 #endif
1215 EOF
1216 }
1217
1218 check_lib(){
1219     log check_lib "$@"
1220     headers="$1"
1221     funcs="$2"
1222     shift 2
1223     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1224 }
1225
1226 check_lib_cpp(){
1227     log check_lib_cpp "$@"
1228     headers="$1"
1229     classes="$2"
1230     shift 2
1231     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1232 }
1233
1234 check_pkg_config(){
1235     log check_pkg_config "$@"
1236     pkgandversion="$1"
1237     pkg="${1%% *}"
1238     headers="$2"
1239     funcs="$3"
1240     shift 3
1241     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1242     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1243     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1244     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1245         set_safe "${pkg}_cflags" $pkg_cflags   &&
1246         set_safe "${pkg}_libs"   $pkg_libs
1247 }
1248
1249 check_exec(){
1250     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1251 }
1252
1253 check_exec_crash(){
1254     log check_exec_crash "$@"
1255     code=$(cat)
1256
1257     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1258     # are safe but may not be available everywhere.  Thus we use
1259     # raise(SIGTERM) instead.  The check is run in a subshell so we
1260     # can redirect the "Terminated" message from the shell.  SIGBUS
1261     # is not defined by standard C so it is used conditionally.
1262
1263     (check_exec "$@") >> $logfile 2>&1 <<EOF
1264 #include <signal.h>
1265 static void sighandler(int sig){
1266     raise(SIGTERM);
1267 }
1268 int foo(void){
1269     $code
1270 }
1271 int (*func_ptr)(void) = foo;
1272 int main(void){
1273     signal(SIGILL, sighandler);
1274     signal(SIGFPE, sighandler);
1275     signal(SIGSEGV, sighandler);
1276 #ifdef SIGBUS
1277     signal(SIGBUS, sighandler);
1278 #endif
1279     return func_ptr();
1280 }
1281 EOF
1282 }
1283
1284 check_type(){
1285     log check_type "$@"
1286     headers=$1
1287     type=$2
1288     shift 2
1289     disable_safe "$type"
1290     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1291 }
1292
1293 check_struct(){
1294     log check_struct "$@"
1295     headers=$1
1296     struct=$2
1297     member=$3
1298     shift 3
1299     disable_safe "${struct}_${member}"
1300     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1301         enable_safe "${struct}_${member}"
1302 }
1303
1304 check_builtin(){
1305     log check_builtin "$@"
1306     name=$1
1307     headers=$2
1308     builtin=$3
1309     shift 3
1310     disable "$name"
1311     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1312 }
1313
1314 check_compile_assert(){
1315     log check_compile_assert "$@"
1316     name=$1
1317     headers=$2
1318     condition=$3
1319     shift 3
1320     disable "$name"
1321     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1322 }
1323
1324 require(){
1325     log require "$@"
1326     name="$1"
1327     headers="$2"
1328     func="$3"
1329     shift 3
1330     check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1331 }
1332
1333 require_cpp(){
1334     name="$1"
1335     headers="$2"
1336     classes="$3"
1337     shift 3
1338     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1339 }
1340
1341 use_pkg_config(){
1342     log use_pkg_config "$@"
1343     pkg="$1"
1344     check_pkg_config "$@" || return 1
1345     add_cflags    $(get_safe "${pkg}_cflags")
1346     add_extralibs $(get_safe "${pkg}_libs")
1347 }
1348
1349 require_pkg_config(){
1350     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1351 }
1352
1353 require_libfreetype(){
1354     log require_libfreetype "$@"
1355     pkg="freetype2"
1356     check_cmd $pkg_config --exists --print-errors $pkg \
1357       || die "ERROR: $pkg not found"
1358     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1359     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1360     {
1361         echo "#include <ft2build.h>"
1362         echo "#include FT_FREETYPE_H"
1363         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1364         echo "int main(void) { return 0; }"
1365     } | check_ld "cc" $pkg_cflags $pkg_libs \
1366       && set_safe "${pkg}_cflags" $pkg_cflags \
1367       && set_safe "${pkg}_libs"   $pkg_libs \
1368       || die "ERROR: $pkg not found"
1369     add_cflags    $(get_safe "${pkg}_cflags")
1370     add_extralibs $(get_safe "${pkg}_libs")
1371 }
1372
1373 hostcc_e(){
1374     eval printf '%s\\n' $HOSTCC_E
1375 }
1376
1377 hostcc_o(){
1378     eval printf '%s\\n' $HOSTCC_O
1379 }
1380
1381 check_host_cc(){
1382     log check_host_cc "$@"
1383     cat > $TMPC
1384     log_file $TMPC
1385     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1386 }
1387
1388 check_host_cpp(){
1389     log check_host_cpp "$@"
1390     cat > $TMPC
1391     log_file $TMPC
1392     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1393 }
1394
1395 check_host_cppflags(){
1396     log check_host_cppflags "$@"
1397     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1398 int x;
1399 EOF
1400 }
1401
1402 check_host_cflags(){
1403     log check_host_cflags "$@"
1404     set -- $($host_cflags_filter "$@")
1405     check_host_cc "$@" <<EOF && append host_cflags "$@"
1406 int x;
1407 EOF
1408 }
1409
1410 check_host_cpp_condition(){
1411     log check_host_cpp_condition "$@"
1412     header=$1
1413     condition=$2
1414     shift 2
1415     check_host_cpp "$@" <<EOF
1416 #include <$header>
1417 #if !($condition)
1418 #error "unsatisfied condition: $condition"
1419 #endif
1420 EOF
1421 }
1422
1423 cp_if_changed(){
1424     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1425     mkdir -p "$(dirname $2)"
1426     cp -f "$1" "$2"
1427 }
1428
1429 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1430 # system-dependent things.
1431
1432 AVCODEC_COMPONENTS="
1433     bsfs
1434     decoders
1435     encoders
1436     hwaccels
1437     parsers
1438 "
1439
1440 AVDEVICE_COMPONENTS="
1441     indevs
1442     outdevs
1443 "
1444 AVFILTER_COMPONENTS="
1445     filters
1446 "
1447 AVFORMAT_COMPONENTS="
1448     demuxers
1449     muxers
1450     protocols
1451 "
1452
1453 AVRESAMPLE_COMPONENTS=""
1454 AVUTIL_COMPONENTS=""
1455
1456 COMPONENT_LIST="
1457     $AVCODEC_COMPONENTS
1458     $AVDEVICE_COMPONENTS
1459     $AVFILTER_COMPONENTS
1460     $AVFORMAT_COMPONENTS
1461     $AVRESAMPLE_COMPONENTS
1462     $AVUTIL_COMPONENTS
1463 "
1464
1465 EXAMPLE_LIST="
1466     avio_dir_cmd_example
1467     avio_reading_example
1468     decode_audio_example
1469     decode_video_example
1470     demuxing_decoding_example
1471     encode_audio_example
1472     encode_video_example
1473     extract_mvs_example
1474     filter_audio_example
1475     filtering_audio_example
1476     filtering_video_example
1477     http_multiclient_example
1478     metadata_example
1479     muxing_example
1480     qsvdec_example
1481     remuxing_example
1482     resampling_audio_example
1483     scaling_video_example
1484     transcode_aac_example
1485     transcoding_example
1486 "
1487 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1488     bzlib
1489     iconv
1490     libxcb
1491     libxcb_shm
1492     libxcb_shape
1493     libxcb_xfixes
1494     lzma
1495     schannel
1496     sdl
1497     sdl2
1498     securetransport
1499     xlib
1500     zlib
1501 "
1502
1503 EXTERNAL_LIBRARY_GPL_LIST="
1504     avisynth
1505     frei0r
1506     libcdio
1507     librubberband
1508     libvidstab
1509     libx264
1510     libx265
1511     libxavs
1512     libxvid
1513 "
1514
1515 EXTERNAL_LIBRARY_NONFREE_LIST="
1516     libfdk_aac
1517     openssl
1518 "
1519
1520 EXTERNAL_LIBRARY_VERSION3_LIST="
1521     gmp
1522     libopencore_amrnb
1523     libopencore_amrwb
1524     libvo_amrwbenc
1525 "
1526
1527 EXTERNAL_LIBRARY_GPLV3_LIST="
1528     libsmbclient
1529 "
1530
1531 EXTERNAL_LIBRARY_LIST="
1532     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1533     $EXTERNAL_LIBRARY_GPL_LIST
1534     $EXTERNAL_LIBRARY_NONFREE_LIST
1535     $EXTERNAL_LIBRARY_VERSION3_LIST
1536     $EXTERNAL_LIBRARY_GPLV3_LIST
1537     chromaprint
1538     crystalhd
1539     decklink
1540     gcrypt
1541     gnutls
1542     jni
1543     ladspa
1544     libass
1545     libbluray
1546     libbs2b
1547     libcaca
1548     libcelt
1549     libdc1394
1550     libflite
1551     libfontconfig
1552     libfreetype
1553     libfribidi
1554     libgme
1555     libgsm
1556     libiec61883
1557     libilbc
1558     libkvazaar
1559     libmodplug
1560     libmp3lame
1561     libnut
1562     libopencv
1563     libopenh264
1564     libopenjpeg
1565     libopenmpt
1566     libopus
1567     libpulse
1568     librtmp
1569     libschroedinger
1570     libshine
1571     libsmbclient
1572     libsnappy
1573     libsoxr
1574     libspeex
1575     libssh
1576     libtesseract
1577     libtheora
1578     libtwolame
1579     libv4l2
1580     libvorbis
1581     libvpx
1582     libwavpack
1583     libwebp
1584     libzimg
1585     libzmq
1586     libzvbi
1587     mediacodec
1588     netcdf
1589     openal
1590     opencl
1591     opengl
1592     videotoolbox
1593 "
1594 HWACCEL_AUTODETECT_LIBRARY_LIST="
1595     audiotoolbox
1596     cuda
1597     cuvid
1598     d3d11va
1599     dxva2
1600     nvenc
1601     vaapi
1602     vda
1603     vdpau
1604     videotoolbox_hwaccel
1605     xvmc
1606 "
1607
1608 HWACCEL_LIBRARY_NONFREE_LIST="
1609     libnpp
1610 "
1611
1612 HWACCEL_LIBRARY_LIST="
1613     $HWACCEL_AUTODETECT_LIBRARY_LIST
1614     $HWACCEL_LIBRARY_NONFREE_LIST
1615     libmfx
1616     mmal
1617     omx
1618 "
1619
1620 DOCUMENT_LIST="
1621     doc
1622     htmlpages
1623     manpages
1624     podpages
1625     txtpages
1626 "
1627
1628 FEATURE_LIST="
1629     ftrapv
1630     gray
1631     hardcoded_tables
1632     omx_rpi
1633     runtime_cpudetect
1634     safe_bitstream_reader
1635     shared
1636     small
1637     static
1638     swscale_alpha
1639 "
1640
1641 LIBRARY_LIST="
1642     avcodec
1643     avdevice
1644     avfilter
1645     avformat
1646     avresample
1647     avutil
1648     postproc
1649     swresample
1650     swscale
1651 "
1652
1653 LICENSE_LIST="
1654     gpl
1655     nonfree
1656     version3
1657 "
1658
1659 PROGRAM_LIST="
1660     ffplay
1661     ffprobe
1662     ffserver
1663     ffmpeg
1664 "
1665
1666 SUBSYSTEM_LIST="
1667     dct
1668     dwt
1669     error_resilience
1670     faan
1671     fast_unaligned
1672     fft
1673     lsp
1674     lzo
1675     mdct
1676     pixelutils
1677     network
1678     rdft
1679 "
1680
1681 CONFIG_LIST="
1682     $COMPONENT_LIST
1683     $DOCUMENT_LIST
1684     $EXAMPLE_LIST
1685     $EXTERNAL_LIBRARY_LIST
1686     $HWACCEL_LIBRARY_LIST
1687     $FEATURE_LIST
1688     $LICENSE_LIST
1689     $LIBRARY_LIST
1690     $PROGRAM_LIST
1691     $SUBSYSTEM_LIST
1692     fontconfig
1693     memory_poisoning
1694     neon_clobber_test
1695     pic
1696     raise_major
1697     thumb
1698     valgrind_backtrace
1699     xmm_clobber_test
1700 "
1701
1702 THREADS_LIST="
1703     pthreads
1704     os2threads
1705     w32threads
1706 "
1707
1708 ATOMICS_LIST="
1709     atomics_gcc
1710     atomics_suncc
1711     atomics_win32
1712 "
1713
1714 AUTODETECT_LIBS="
1715     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1716     $HWACCEL_AUTODETECT_LIBRARY_LIST
1717     $THREADS_LIST
1718 "
1719
1720 ARCH_LIST="
1721     aarch64
1722     alpha
1723     arm
1724     avr32
1725     avr32_ap
1726     avr32_uc
1727     bfin
1728     ia64
1729     m68k
1730     mips
1731     mips64
1732     parisc
1733     ppc
1734     ppc64
1735     s390
1736     sh4
1737     sparc
1738     sparc64
1739     tilegx
1740     tilepro
1741     tomi
1742     x86
1743     x86_32
1744     x86_64
1745 "
1746
1747 ARCH_EXT_LIST_ARM="
1748     armv5te
1749     armv6
1750     armv6t2
1751     armv8
1752     neon
1753     vfp
1754     vfpv3
1755     setend
1756 "
1757
1758 ARCH_EXT_LIST_MIPS="
1759     mipsfpu
1760     mips32r2
1761     mips32r5
1762     mips64r2
1763     mips32r6
1764     mips64r6
1765     mipsdsp
1766     mipsdspr2
1767     msa
1768 "
1769
1770 ARCH_EXT_LIST_LOONGSON="
1771     loongson2
1772     loongson3
1773     mmi
1774 "
1775
1776 ARCH_EXT_LIST_X86_SIMD="
1777     aesni
1778     amd3dnow
1779     amd3dnowext
1780     avx
1781     avx2
1782     fma3
1783     fma4
1784     mmx
1785     mmxext
1786     sse
1787     sse2
1788     sse3
1789     sse4
1790     sse42
1791     ssse3
1792     xop
1793 "
1794
1795 ARCH_EXT_LIST_PPC="
1796     altivec
1797     dcbzl
1798     ldbrx
1799     power8
1800     ppc4xx
1801     vsx
1802 "
1803
1804 ARCH_EXT_LIST_X86="
1805     $ARCH_EXT_LIST_X86_SIMD
1806     cpunop
1807     i686
1808 "
1809
1810 ARCH_EXT_LIST="
1811     $ARCH_EXT_LIST_ARM
1812     $ARCH_EXT_LIST_PPC
1813     $ARCH_EXT_LIST_X86
1814     $ARCH_EXT_LIST_MIPS
1815     $ARCH_EXT_LIST_LOONGSON
1816 "
1817
1818 ARCH_FEATURES="
1819     aligned_stack
1820     fast_64bit
1821     fast_clz
1822     fast_cmov
1823     local_aligned_8
1824     local_aligned_16
1825     local_aligned_32
1826     simd_align_16
1827     simd_align_32
1828 "
1829
1830 BUILTIN_LIST="
1831     atomic_cas_ptr
1832     machine_rw_barrier
1833     MemoryBarrier
1834     mm_empty
1835     rdtsc
1836     sarestart
1837     sem_timedwait
1838     sync_val_compare_and_swap
1839 "
1840 HAVE_LIST_CMDLINE="
1841     inline_asm
1842     symver
1843     yasm
1844 "
1845
1846 HAVE_LIST_PUB="
1847     bigendian
1848     fast_unaligned
1849 "
1850
1851 HEADERS_LIST="
1852     alsa_asoundlib_h
1853     altivec_h
1854     arpa_inet_h
1855     asm_types_h
1856     cdio_paranoia_h
1857     cdio_paranoia_paranoia_h
1858     cuda_h
1859     dispatch_dispatch_h
1860     dev_bktr_ioctl_bt848_h
1861     dev_bktr_ioctl_meteor_h
1862     dev_ic_bt8xx_h
1863     dev_video_bktr_ioctl_bt848_h
1864     dev_video_meteor_ioctl_meteor_h
1865     direct_h
1866     dirent_h
1867     dlfcn_h
1868     d3d11_h
1869     dxva_h
1870     ES2_gl_h
1871     gsm_h
1872     io_h
1873     mach_mach_time_h
1874     machine_ioctl_bt848_h
1875     machine_ioctl_meteor_h
1876     malloc_h
1877     opencv2_core_core_c_h
1878     openjpeg_2_1_openjpeg_h
1879     openjpeg_2_0_openjpeg_h
1880     openjpeg_1_5_openjpeg_h
1881     OpenGL_gl3_h
1882     poll_h
1883     sndio_h
1884     soundcard_h
1885     stdatomic_h
1886     sys_mman_h
1887     sys_param_h
1888     sys_resource_h
1889     sys_select_h
1890     sys_soundcard_h
1891     sys_time_h
1892     sys_un_h
1893     sys_videoio_h
1894     termios_h
1895     udplite_h
1896     unistd_h
1897     valgrind_valgrind_h
1898     windows_h
1899     winsock2_h
1900 "
1901
1902 INTRINSICS_LIST="
1903     intrinsics_neon
1904 "
1905
1906 COMPLEX_FUNCS="
1907     cabs
1908     cexp
1909 "
1910
1911 MATH_FUNCS="
1912     atanf
1913     atan2f
1914     cbrt
1915     cbrtf
1916     copysign
1917     cosf
1918     erf
1919     exp2
1920     exp2f
1921     expf
1922     hypot
1923     isfinite
1924     isinf
1925     isnan
1926     ldexpf
1927     llrint
1928     llrintf
1929     log2
1930     log2f
1931     log10f
1932     lrint
1933     lrintf
1934     powf
1935     rint
1936     round
1937     roundf
1938     sinf
1939     trunc
1940     truncf
1941 "
1942
1943 SYSTEM_FUNCS="
1944     access
1945     aligned_malloc
1946     arc4random
1947     clock_gettime
1948     closesocket
1949     CommandLineToArgvW
1950     CoTaskMemFree
1951     CryptGenRandom
1952     dlopen
1953     fcntl
1954     flt_lim
1955     fork
1956     getaddrinfo
1957     gethrtime
1958     getopt
1959     GetProcessAffinityMask
1960     GetProcessMemoryInfo
1961     GetProcessTimes
1962     getrusage
1963     GetSystemTimeAsFileTime
1964     gettimeofday
1965     glob
1966     glXGetProcAddress
1967     gmtime_r
1968     inet_aton
1969     isatty
1970     jack_port_get_latency_range
1971     kbhit
1972     LoadLibrary
1973     localtime_r
1974     lstat
1975     lzo1x_999_compress
1976     mach_absolute_time
1977     MapViewOfFile
1978     memalign
1979     mkstemp
1980     mmap
1981     mprotect
1982     nanosleep
1983     PeekNamedPipe
1984     posix_memalign
1985     pthread_cancel
1986     sched_getaffinity
1987     SetConsoleTextAttribute
1988     SetConsoleCtrlHandler
1989     setmode
1990     setrlimit
1991     Sleep
1992     strerror_r
1993     sysconf
1994     sysctl
1995     usleep
1996     UTGetOSTypeFromString
1997     VirtualAlloc
1998     wglGetProcAddress
1999 "
2000
2001 TOOLCHAIN_FEATURES="
2002     as_dn_directive
2003     as_fpu_directive
2004     as_func
2005     as_object_arch
2006     asm_mod_q
2007     attribute_may_alias
2008     attribute_packed
2009     ebp_available
2010     ebx_available
2011     gnu_as
2012     gnu_windres
2013     ibm_asm
2014     inline_asm_direct_symbol_refs
2015     inline_asm_labels
2016     inline_asm_nonlocal_labels
2017     pragma_deprecated
2018     rsync_contimeout
2019     symver_asm_label
2020     symver_gnu_asm
2021     vfp_args
2022     xform_asm
2023     xmm_clobbers
2024 "
2025
2026 TYPES_LIST="
2027     CONDITION_VARIABLE_Ptr
2028     socklen_t
2029     struct_addrinfo
2030     struct_group_source_req
2031     struct_ip_mreq_source
2032     struct_ipv6_mreq
2033     struct_msghdr_msg_flags
2034     struct_pollfd
2035     struct_rusage_ru_maxrss
2036     struct_sctp_event_subscribe
2037     struct_sockaddr_in6
2038     struct_sockaddr_sa_len
2039     struct_sockaddr_storage
2040     struct_stat_st_mtim_tv_nsec
2041     struct_v4l2_frmivalenum_discrete
2042 "
2043
2044 HAVE_LIST="
2045     $ARCH_EXT_LIST
2046     $(add_suffix _external $ARCH_EXT_LIST)
2047     $(add_suffix _inline   $ARCH_EXT_LIST)
2048     $ARCH_FEATURES
2049     $ATOMICS_LIST
2050     $BUILTIN_LIST
2051     $COMPLEX_FUNCS
2052     $HAVE_LIST_CMDLINE
2053     $HAVE_LIST_PUB
2054     $HEADERS_LIST
2055     $INTRINSICS_LIST
2056     $MATH_FUNCS
2057     $SYSTEM_FUNCS
2058     $THREADS_LIST
2059     $TOOLCHAIN_FEATURES
2060     $TYPES_LIST
2061     atomics_native
2062     dos_paths
2063     dxva2_lib
2064     dxva2api_cobj
2065     libc_msvcrt
2066     makeinfo
2067     makeinfo_html
2068     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2069     perl
2070     pod2man
2071     sdl2
2072     section_data_rel_ro
2073     texi2html
2074     threads
2075     vaapi_drm
2076     vaapi_x11
2077     vdpau_x11
2078     winrt
2079 "
2080
2081 # options emitted with CONFIG_ prefix but not available on the command line
2082 CONFIG_EXTRA="
2083     aandcttables
2084     ac3dsp
2085     audio_frame_queue
2086     audiodsp
2087     blockdsp
2088     bswapdsp
2089     cabac
2090     dirac_parse
2091     dvprofile
2092     exif
2093     faandct
2094     faanidct
2095     fdctdsp
2096     flacdsp
2097     fmtconvert
2098     frame_thread_encoder
2099     g722dsp
2100     golomb
2101     gplv3
2102     h263dsp
2103     h264chroma
2104     h264dsp
2105     h264parse
2106     h264pred
2107     h264qpel
2108     hpeldsp
2109     huffman
2110     huffyuvdsp
2111     huffyuvencdsp
2112     idctdsp
2113     iirfilter
2114     mdct15
2115     intrax8
2116     iso_media
2117     ividsp
2118     jpegtables
2119     lgplv3
2120     libx262
2121     llauddsp
2122     llviddsp
2123     llvidencdsp
2124     lpc
2125     lzf
2126     me_cmp
2127     mpeg_er
2128     mpegaudio
2129     mpegaudiodsp
2130     mpegvideo
2131     mpegvideoenc
2132     mss34dsp
2133     pixblockdsp
2134     qpeldsp
2135     qsv
2136     qsvdec
2137     qsvenc
2138     rangecoder
2139     riffdec
2140     riffenc
2141     rtpdec
2142     rtpenc_chain
2143     rv34dsp
2144     sinewin
2145     snappy
2146     srtp
2147     startcode
2148     texturedsp
2149     texturedspenc
2150     tpeldsp
2151     vaapi_encode
2152     vc1dsp
2153     videodsp
2154     vp3dsp
2155     vp56dsp
2156     vp8dsp
2157     vt_bt2020
2158     wma_freqs
2159     wmv2dsp
2160 "
2161
2162 CMDLINE_SELECT="
2163     $ARCH_EXT_LIST
2164     $CONFIG_LIST
2165     $HAVE_LIST_CMDLINE
2166     $THREADS_LIST
2167     asm
2168     cross_compile
2169     debug
2170     extra_warnings
2171     logging
2172     lto
2173     optimizations
2174     rpath
2175     stripping
2176 "
2177
2178 PATHS_LIST="
2179     bindir
2180     datadir
2181     docdir
2182     incdir
2183     libdir
2184     mandir
2185     pkgconfigdir
2186     prefix
2187     shlibdir
2188     install_name_dir
2189 "
2190
2191 CMDLINE_SET="
2192     $PATHS_LIST
2193     ar
2194     arch
2195     as
2196     assert_level
2197     build_suffix
2198     cc
2199     objcc
2200     cpu
2201     cross_prefix
2202     custom_allocator
2203     cxx
2204     dep_cc
2205     doxygen
2206     env
2207     extra_version
2208     gas
2209     host_cc
2210     host_cflags
2211     host_ld
2212     host_ldflags
2213     host_libs
2214     host_os
2215     install
2216     ld
2217     ln_s
2218     logfile
2219     malloc_prefix
2220     nm
2221     optflags
2222     pkg_config
2223     pkg_config_flags
2224     progs_suffix
2225     random_seed
2226     ranlib
2227     samples
2228     strip
2229     sws_max_filter_size
2230     sysinclude
2231     sysroot
2232     target_exec
2233     target_os
2234     target_path
2235     target_samples
2236     tempprefix
2237     toolchain
2238     valgrind
2239     yasmexe
2240 "
2241
2242 CMDLINE_APPEND="
2243     extra_cflags
2244     extra_cxxflags
2245     extra_objcflags
2246     host_cppflags
2247 "
2248
2249 # code dependency declarations
2250
2251 # architecture extensions
2252
2253 armv5te_deps="arm"
2254 armv6_deps="arm"
2255 armv6t2_deps="arm"
2256 armv8_deps="aarch64"
2257 neon_deps_any="aarch64 arm"
2258 intrinsics_neon_deps="neon"
2259 vfp_deps_any="aarch64 arm"
2260 vfpv3_deps="vfp"
2261 setend_deps="arm"
2262
2263 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2264
2265 loongson2_deps="mips"
2266 loongson3_deps="mips"
2267 mipsfpu_deps="mips"
2268 mipsdsp_deps="mips"
2269 mipsdspr2_deps="mips"
2270 mips32r2_deps="mips"
2271 mips32r5_deps="mips"
2272 mips32r6_deps="mips"
2273 mips64r2_deps="mips"
2274 mips64r6_deps="mips"
2275 msa_deps="mipsfpu"
2276 mmi_deps="mips"
2277
2278 altivec_deps="ppc"
2279 dcbzl_deps="ppc"
2280 ldbrx_deps="ppc"
2281 ppc4xx_deps="ppc"
2282 vsx_deps="altivec"
2283 power8_deps="vsx"
2284
2285 cpunop_deps="i686"
2286 x86_64_select="i686"
2287 x86_64_suggest="fast_cmov"
2288
2289 amd3dnow_deps="mmx"
2290 amd3dnowext_deps="amd3dnow"
2291 i686_deps="x86"
2292 mmx_deps="x86"
2293 mmxext_deps="mmx"
2294 sse_deps="mmxext"
2295 sse2_deps="sse"
2296 sse3_deps="sse2"
2297 ssse3_deps="sse3"
2298 sse4_deps="ssse3"
2299 sse42_deps="sse4"
2300 aesni_deps="sse42"
2301 avx_deps="sse42"
2302 xop_deps="avx"
2303 fma3_deps="avx"
2304 fma4_deps="avx"
2305 avx2_deps="avx"
2306
2307 mmx_external_deps="yasm"
2308 mmx_inline_deps="inline_asm"
2309 mmx_suggest="mmx_external mmx_inline"
2310
2311 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2312     eval dep=\$${ext}_deps
2313     eval ${ext}_external_deps='"${dep}_external"'
2314     eval ${ext}_inline_deps='"${dep}_inline"'
2315     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2316 done
2317
2318 aligned_stack_if_any="aarch64 ppc x86"
2319 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2320 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2321 fast_unaligned_if_any="aarch64 ppc x86"
2322 simd_align_16_if_any="altivec neon sse"
2323 simd_align_32_if_any="avx"
2324
2325 # system capabilities
2326 symver_if_any="symver_asm_label symver_gnu_asm"
2327 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2328
2329 # threading support
2330 atomics_gcc_if="sync_val_compare_and_swap"
2331 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2332 atomics_win32_if="MemoryBarrier"
2333 atomics_native_if_any="$ATOMICS_LIST"
2334 w32threads_deps="atomics_native"
2335 threads_if_any="$THREADS_LIST"
2336
2337 # subsystems
2338 dct_select="rdft"
2339 dirac_parse_select="golomb"
2340 error_resilience_select="me_cmp"
2341 faandct_deps="faan fdctdsp"
2342 faanidct_deps="faan idctdsp"
2343 h264dsp_select="startcode"
2344 frame_thread_encoder_deps="encoders threads"
2345 intrax8_select="blockdsp idctdsp"
2346 mdct_select="fft"
2347 mdct15_select="fft"
2348 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2349 mpeg_er_select="error_resilience"
2350 mpegaudio_select="mpegaudiodsp"
2351 mpegaudiodsp_select="dct"
2352 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2353 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2354 vc1dsp_select="h264chroma qpeldsp startcode"
2355 rdft_select="fft"
2356
2357 # decoders / encoders
2358 aac_decoder_select="mdct15 mdct sinewin"
2359 aac_fixed_decoder_select="mdct sinewin"
2360 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2361 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2362 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2363 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2364 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2365 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2366 adpcm_g722_decoder_select="g722dsp"
2367 adpcm_g722_encoder_select="g722dsp"
2368 aic_decoder_select="golomb idctdsp"
2369 alac_encoder_select="lpc"
2370 als_decoder_select="bswapdsp"
2371 amrnb_decoder_select="lsp"
2372 amrwb_decoder_select="lsp"
2373 amv_decoder_select="sp5x_decoder exif"
2374 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2375 ape_decoder_select="bswapdsp llauddsp"
2376 apng_decoder_select="zlib"
2377 apng_encoder_select="llvidencdsp zlib"
2378 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2379 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2380 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2381 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2382 atrac1_decoder_select="mdct sinewin"
2383 atrac3_decoder_select="mdct"
2384 atrac3p_decoder_select="mdct sinewin"
2385 avrn_decoder_select="exif jpegtables"
2386 bink_decoder_select="blockdsp hpeldsp"
2387 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2388 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2389 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2390 cllc_decoder_select="bswapdsp"
2391 comfortnoise_encoder_select="lpc"
2392 cook_decoder_select="audiodsp mdct sinewin"
2393 cscd_decoder_select="lzo"
2394 cscd_decoder_suggest="zlib"
2395 dca_decoder_select="mdct"
2396 dds_decoder_select="texturedsp"
2397 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2398 dnxhd_decoder_select="blockdsp idctdsp"
2399 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2400 dvvideo_decoder_select="dvprofile idctdsp"
2401 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2402 dxa_decoder_select="zlib"
2403 dxv_decoder_select="lzf texturedsp"
2404 eac3_decoder_select="ac3_decoder"
2405 eac3_encoder_select="ac3_encoder"
2406 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2407 eatgq_decoder_select="aandcttables"
2408 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2409 exr_decoder_select="zlib"
2410 ffv1_decoder_select="golomb rangecoder"
2411 ffv1_encoder_select="rangecoder"
2412 ffvhuff_decoder_select="huffyuv_decoder"
2413 ffvhuff_encoder_select="huffyuv_encoder"
2414 fic_decoder_select="golomb"
2415 flac_decoder_select="flacdsp golomb"
2416 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2417 flashsv2_decoder_select="zlib"
2418 flashsv2_encoder_select="zlib"
2419 flashsv_decoder_select="zlib"
2420 flashsv_encoder_select="zlib"
2421 flv_decoder_select="h263_decoder"
2422 flv_encoder_select="h263_encoder"
2423 fourxm_decoder_select="blockdsp bswapdsp"
2424 fraps_decoder_select="bswapdsp huffman"
2425 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2426 g729_decoder_select="audiodsp"
2427 h261_decoder_select="mpegvideo"
2428 h261_encoder_select="aandcttables mpegvideoenc"
2429 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2430 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2431 h263i_decoder_select="h263_decoder"
2432 h263p_decoder_select="h263_decoder"
2433 h263p_encoder_select="h263_encoder"
2434 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2435 h264_decoder_suggest="error_resilience"
2436 hap_decoder_select="snappy texturedsp"
2437 hap_encoder_deps="libsnappy"
2438 hap_encoder_select="texturedspenc"
2439 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2440 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2441 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2442 iac_decoder_select="imc_decoder"
2443 imc_decoder_select="bswapdsp fft mdct sinewin"
2444 indeo3_decoder_select="hpeldsp"
2445 indeo4_decoder_select="ividsp"
2446 indeo5_decoder_select="ividsp"
2447 interplay_video_decoder_select="hpeldsp"
2448 jpegls_decoder_select="golomb mjpeg_decoder"
2449 jpegls_encoder_select="golomb"
2450 jv_decoder_select="blockdsp"
2451 lagarith_decoder_select="llviddsp"
2452 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2453 loco_decoder_select="golomb"
2454 magicyuv_decoder_select="llviddsp"
2455 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2456 metasound_decoder_select="lsp mdct sinewin"
2457 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2458 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2459 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2460 mjpegb_decoder_select="mjpeg_decoder"
2461 mlp_decoder_select="mlp_parser"
2462 motionpixels_decoder_select="bswapdsp"
2463 mp1_decoder_select="mpegaudio"
2464 mp1float_decoder_select="mpegaudio"
2465 mp2_decoder_select="mpegaudio"
2466 mp2float_decoder_select="mpegaudio"
2467 mp3_decoder_select="mpegaudio"
2468 mp3adu_decoder_select="mpegaudio"
2469 mp3adufloat_decoder_select="mpegaudio"
2470 mp3float_decoder_select="mpegaudio"
2471 mp3on4_decoder_select="mpegaudio"
2472 mp3on4float_decoder_select="mpegaudio"
2473 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2474 mpc8_decoder_select="mpegaudiodsp"
2475 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2476 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2477 mpegvideo_decoder_select="mpegvideo"
2478 mpeg1video_decoder_select="mpegvideo"
2479 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2480 mpeg2video_decoder_select="mpegvideo"
2481 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2482 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2483 mpeg4_encoder_select="h263_encoder"
2484 msa1_decoder_select="mss34dsp"
2485 msmpeg4v1_decoder_select="h263_decoder"
2486 msmpeg4v2_decoder_select="h263_decoder"
2487 msmpeg4v2_encoder_select="h263_encoder"
2488 msmpeg4v3_decoder_select="h263_decoder"
2489 msmpeg4v3_encoder_select="h263_encoder"
2490 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2491 mts2_decoder_select="mss34dsp"
2492 mxpeg_decoder_select="mjpeg_decoder"
2493 nellymoser_decoder_select="mdct sinewin"
2494 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2495 nuv_decoder_select="idctdsp lzo"
2496 on2avc_decoder_select="mdct"
2497 opus_decoder_deps="swresample"
2498 opus_decoder_select="mdct15"
2499 opus_encoder_select="audio_frame_queue mdct15"
2500 png_decoder_select="zlib"
2501 png_encoder_select="llvidencdsp zlib"
2502 prores_decoder_select="blockdsp idctdsp"
2503 prores_encoder_select="fdctdsp"
2504 qcelp_decoder_select="lsp"
2505 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2506 ra_144_decoder_select="audiodsp"
2507 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2508 ralf_decoder_select="golomb"
2509 rawvideo_decoder_select="bswapdsp"
2510 rscc_decoder_select="zlib"
2511 rtjpeg_decoder_select="me_cmp"
2512 rv10_decoder_select="h263_decoder"
2513 rv10_encoder_select="h263_encoder"
2514 rv20_decoder_select="h263_decoder"
2515 rv20_encoder_select="h263_encoder"
2516 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2517 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2518 screenpresso_decoder_select="zlib"
2519 shorten_decoder_select="golomb bswapdsp"
2520 sipr_decoder_select="lsp"
2521 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2522 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2523 sonic_decoder_select="golomb rangecoder"
2524 sonic_encoder_select="golomb rangecoder"
2525 sonic_ls_encoder_select="golomb rangecoder"
2526 sp5x_decoder_select="mjpeg_decoder"
2527 svq1_decoder_select="hpeldsp"
2528 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2529 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2530 svq3_decoder_suggest="zlib"
2531 tak_decoder_select="audiodsp"
2532 tdsc_decoder_select="zlib mjpeg_decoder"
2533 theora_decoder_select="vp3_decoder"
2534 thp_decoder_select="mjpeg_decoder"
2535 tiff_decoder_suggest="zlib lzma"
2536 tiff_encoder_suggest="zlib"
2537 truehd_decoder_select="mlp_parser"
2538 truemotion2_decoder_select="bswapdsp"
2539 truespeech_decoder_select="bswapdsp"
2540 tscc_decoder_select="zlib"
2541 twinvq_decoder_select="mdct lsp sinewin"
2542 txd_decoder_select="texturedsp"
2543 utvideo_decoder_select="bswapdsp llviddsp"
2544 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2545 vble_decoder_select="llviddsp"
2546 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2547 vc1_qsv_decoder_deps="libmfx"
2548 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2549 vc1image_decoder_select="vc1_decoder"
2550 vorbis_decoder_select="mdct"
2551 vorbis_encoder_select="mdct"
2552 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2553 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2554 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2555 vp6a_decoder_select="vp6_decoder"
2556 vp6f_decoder_select="vp6_decoder"
2557 vp7_decoder_select="h264pred videodsp vp8dsp"
2558 vp8_decoder_select="h264pred videodsp vp8dsp"
2559 vp9_decoder_select="videodsp vp9_parser"
2560 webp_decoder_select="vp8_decoder exif"
2561 wmalossless_decoder_select="llauddsp"
2562 wmapro_decoder_select="mdct sinewin wma_freqs"
2563 wmav1_decoder_select="mdct sinewin wma_freqs"
2564 wmav1_encoder_select="mdct sinewin wma_freqs"
2565 wmav2_decoder_select="mdct sinewin wma_freqs"
2566 wmav2_encoder_select="mdct sinewin wma_freqs"
2567 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2568 wmv1_decoder_select="h263_decoder"
2569 wmv1_encoder_select="h263_encoder"
2570 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2571 wmv2_encoder_select="h263_encoder wmv2dsp"
2572 wmv3_decoder_select="vc1_decoder"
2573 wmv3image_decoder_select="wmv3_decoder"
2574 xma1_decoder_select="wmapro_decoder"
2575 xma2_decoder_select="wmapro_decoder"
2576 zerocodec_decoder_select="zlib"
2577 zlib_decoder_select="zlib"
2578 zlib_encoder_select="zlib"
2579 zmbv_decoder_select="zlib"
2580 zmbv_encoder_select="zlib"
2581
2582 # platform codecs
2583 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2584 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2585
2586 # hardware accelerators
2587 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2588 cuda_deps_any="dlopen LoadLibrary"
2589 cuvid_deps="cuda"
2590 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2591 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2592 dxva2_extralibs="-luser32"
2593 vaapi_deps="va_va_h"
2594 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2595 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2596 vda_deps="vda_framework pthreads"
2597 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2598 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2599 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2600 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2601 xvmc_deps="X11_extensions_XvMClib_h"
2602
2603 h263_vaapi_hwaccel_deps="vaapi"
2604 h263_vaapi_hwaccel_select="h263_decoder"
2605 h263_videotoolbox_hwaccel_deps="videotoolbox"
2606 h263_videotoolbox_hwaccel_select="h263_decoder"
2607 h264_cuvid_hwaccel_deps="cuda cuvid"
2608 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2609 h264_d3d11va_hwaccel_deps="d3d11va"
2610 h264_d3d11va_hwaccel_select="h264_decoder"
2611 h264_dxva2_hwaccel_deps="dxva2"
2612 h264_dxva2_hwaccel_select="h264_decoder"
2613 h264_mediacodec_hwaccel_deps="mediacodec"
2614 h264_mmal_hwaccel_deps="mmal"
2615 h264_qsv_hwaccel_deps="libmfx"
2616 h264_vaapi_hwaccel_deps="vaapi"
2617 h264_vaapi_hwaccel_select="h264_decoder"
2618 h264_vda_hwaccel_deps="vda"
2619 h264_vda_hwaccel_select="h264_decoder"
2620 h264_vda_old_hwaccel_deps="vda"
2621 h264_vda_old_hwaccel_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_cuvid_hwaccel_select="hevc_cuvid_decoder"
2628 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2629 hevc_d3d11va_hwaccel_select="hevc_decoder"
2630 hevc_mediacodec_hwaccel_deps="mediacodec"
2631 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2632 hevc_dxva2_hwaccel_select="hevc_decoder"
2633 hevc_qsv_hwaccel_deps="libmfx"
2634 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2635 hevc_vaapi_hwaccel_select="hevc_decoder"
2636 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2637 hevc_vdpau_hwaccel_select="hevc_decoder"
2638 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2639 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2640 mpeg_xvmc_hwaccel_deps="xvmc"
2641 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2642 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2643 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2644 mpeg1_vdpau_hwaccel_deps="vdpau"
2645 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2646 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2647 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2648 mpeg1_xvmc_hwaccel_deps="xvmc"
2649 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2650 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2651 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2652 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2653 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2654 mpeg2_dxva2_hwaccel_deps="dxva2"
2655 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2656 mpeg2_mmal_hwaccel_deps="mmal"
2657 mpeg2_qsv_hwaccel_deps="libmfx"
2658 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2659 mpeg2_vaapi_hwaccel_deps="vaapi"
2660 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2661 mpeg2_vdpau_hwaccel_deps="vdpau"
2662 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2663 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2664 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2665 mpeg2_xvmc_hwaccel_deps="xvmc"
2666 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2667 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2668 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2669 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2670 mpeg4_mmal_hwaccel_deps="mmal"
2671 mpeg4_vaapi_hwaccel_deps="vaapi"
2672 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2673 mpeg4_vdpau_hwaccel_deps="vdpau"
2674 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2675 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2676 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2677 vc1_cuvid_hwaccel_deps="cuda cuvid"
2678 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2679 vc1_d3d11va_hwaccel_deps="d3d11va"
2680 vc1_d3d11va_hwaccel_select="vc1_decoder"
2681 vc1_dxva2_hwaccel_deps="dxva2"
2682 vc1_dxva2_hwaccel_select="vc1_decoder"
2683 vc1_mmal_hwaccel_deps="mmal"
2684 vc1_qsv_hwaccel_deps="libmfx"
2685 vc1_qsv_hwaccel_select="qsvdec_vc1"
2686 vc1_vaapi_hwaccel_deps="vaapi"
2687 vc1_vaapi_hwaccel_select="vc1_decoder"
2688 vc1_vdpau_hwaccel_deps="vdpau"
2689 vc1_vdpau_hwaccel_select="vc1_decoder"
2690 vp8_cuvid_hwaccel_deps="cuda cuvid"
2691 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2692 vp9_cuvid_hwaccel_deps="cuda cuvid"
2693 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2694 vp8_mediacodec_hwaccel_deps="mediacodec"
2695 vp8_qsv_hwaccel_deps="libmfx"
2696 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2697 vp9_d3d11va_hwaccel_select="vp9_decoder"
2698 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2699 vp9_dxva2_hwaccel_select="vp9_decoder"
2700 vp9_mediacodec_hwaccel_deps="mediacodec"
2701 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2702 vp9_vaapi_hwaccel_select="vp9_decoder"
2703 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2704 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2705 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2706 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2707
2708 # hardware-accelerated codecs
2709 omx_deps="dlopen pthreads"
2710 omx_extralibs='$ldl'
2711 qsvdec_select="qsv"
2712 qsvenc_select="qsv"
2713 vaapi_encode_deps="vaapi"
2714
2715 hwupload_cuda_filter_deps="cuda"
2716 scale_npp_filter_deps="cuda libnpp"
2717
2718 nvenc_deps="cuda"
2719 nvenc_deps_any="dlopen LoadLibrary"
2720 nvenc_encoder_deps="nvenc"
2721
2722 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2723 h264_cuvid_decoder_deps="cuda cuvid"
2724 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2725 h264_mediacodec_decoder_deps="mediacodec"
2726 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2727 h264_mmal_decoder_deps="mmal"
2728 h264_nvenc_encoder_deps="nvenc"
2729 h264_omx_encoder_deps="omx"
2730 h264_qsv_decoder_deps="libmfx"
2731 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2732 h264_qsv_encoder_deps="libmfx"
2733 h264_qsv_encoder_select="qsvenc"
2734 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2735 h264_vaapi_encoder_select="vaapi_encode golomb"
2736 h264_vda_decoder_deps="vda"
2737 h264_vda_decoder_select="h264_decoder"
2738 h264_vdpau_decoder_deps="vdpau"
2739 h264_vdpau_decoder_select="h264_decoder"
2740 hevc_cuvid_decoder_deps="cuda cuvid"
2741 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2742 hevc_mediacodec_decoder_deps="mediacodec"
2743 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2744 hevc_nvenc_encoder_deps="nvenc"
2745 hevc_qsv_decoder_deps="libmfx"
2746 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2747 hevc_qsv_encoder_deps="libmfx"
2748 hevc_qsv_encoder_select="qsvenc"
2749 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2750 hevc_vaapi_encoder_select="vaapi_encode golomb"
2751 mjpeg_cuvid_decoder_deps="cuda cuvid"
2752 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2753 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2754 mpeg1_cuvid_decoder_deps="cuda cuvid"
2755 mpeg1_vdpau_decoder_deps="vdpau"
2756 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2757 mpeg2_crystalhd_decoder_select="crystalhd"
2758 mpeg2_cuvid_decoder_deps="cuda cuvid"
2759 mpeg2_mmal_decoder_deps="mmal"
2760 mpeg2_qsv_decoder_deps="libmfx"
2761 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2762 mpeg2_qsv_encoder_deps="libmfx"
2763 mpeg2_qsv_encoder_select="qsvenc"
2764 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2765 mpeg2_vaapi_encoder_select="vaapi_encode"
2766 mpeg4_crystalhd_decoder_select="crystalhd"
2767 mpeg4_cuvid_decoder_deps="cuda cuvid"
2768 mpeg4_mediacodec_decoder_deps="mediacodec"
2769 mpeg4_mmal_decoder_deps="mmal"
2770 mpeg4_omx_encoder_deps="omx"
2771 mpeg4_vdpau_decoder_deps="vdpau"
2772 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2773 mpeg_vdpau_decoder_deps="vdpau"
2774 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2775 msmpeg4_crystalhd_decoder_select="crystalhd"
2776 nvenc_h264_encoder_deps="nvenc"
2777 nvenc_hevc_encoder_deps="nvenc"
2778 vc1_crystalhd_decoder_select="crystalhd"
2779 vc1_cuvid_decoder_deps="cuda cuvid"
2780 vc1_mmal_decoder_deps="mmal"
2781 vc1_vdpau_decoder_deps="vdpau"
2782 vc1_vdpau_decoder_select="vc1_decoder"
2783 vp8_cuvid_decoder_deps="cuda cuvid"
2784 vp8_mediacodec_decoder_deps="mediacodec"
2785 vp8_qsv_decoder_deps="libmfx"
2786 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2787 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2788 vp8_vaapi_encoder_select="vaapi_encode"
2789 vp9_cuvid_decoder_deps="cuda cuvid"
2790 vp9_mediacodec_decoder_deps="mediacodec"
2791 wmv3_crystalhd_decoder_select="crystalhd"
2792 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2793
2794 # parsers
2795 h264_parser_select="golomb h264dsp h264parse"
2796 hevc_parser_select="golomb"
2797 mpegvideo_parser_select="mpegvideo"
2798 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2799 vc1_parser_select="vc1dsp"
2800
2801 # bitstream_filters
2802 mjpeg2jpeg_bsf_select="jpegtables"
2803
2804 # external libraries
2805 aac_at_decoder_deps="audiotoolbox"
2806 ac3_at_decoder_deps="audiotoolbox"
2807 ac3_at_decoder_select="ac3_parser"
2808 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2809 alac_at_decoder_deps="audiotoolbox"
2810 amr_nb_at_decoder_deps="audiotoolbox"
2811 avisynth_deps_any="dlopen LoadLibrary"
2812 avisynth_demuxer_deps="avisynth"
2813 avisynth_demuxer_select="riffdec"
2814 eac3_at_decoder_deps="audiotoolbox"
2815 eac3_at_decoder_select="ac3_parser"
2816 gsm_ms_at_decoder_deps="audiotoolbox"
2817 ilbc_at_decoder_deps="audiotoolbox"
2818 mp1_at_decoder_deps="audiotoolbox"
2819 mp2_at_decoder_deps="audiotoolbox"
2820 mp3_at_decoder_deps="audiotoolbox"
2821 pcm_alaw_at_decoder_deps="audiotoolbox"
2822 pcm_mulaw_at_decoder_deps="audiotoolbox"
2823 qdmc_at_decoder_deps="audiotoolbox"
2824 qdm2_at_decoder_deps="audiotoolbox"
2825 aac_at_encoder_deps="audiotoolbox"
2826 aac_at_encoder_select="audio_frame_queue"
2827 alac_at_encoder_deps="audiotoolbox"
2828 alac_at_encoder_select="audio_frame_queue"
2829 ilbc_at_encoder_deps="audiotoolbox"
2830 ilbc_at_encoder_select="audio_frame_queue"
2831 pcm_alaw_at_encoder_deps="audiotoolbox"
2832 pcm_alaw_at_encoder_select="audio_frame_queue"
2833 pcm_mulaw_at_encoder_deps="audiotoolbox"
2834 pcm_mulaw_at_encoder_select="audio_frame_queue"
2835 chromaprint_muxer_deps="chromaprint"
2836 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2837 libcelt_decoder_deps="libcelt"
2838 libfdk_aac_decoder_deps="libfdk_aac"
2839 libfdk_aac_encoder_deps="libfdk_aac"
2840 libfdk_aac_encoder_select="audio_frame_queue"
2841 libgme_demuxer_deps="libgme"
2842 libgsm_decoder_deps="libgsm"
2843 libgsm_encoder_deps="libgsm"
2844 libgsm_ms_decoder_deps="libgsm"
2845 libgsm_ms_encoder_deps="libgsm"
2846 libilbc_decoder_deps="libilbc"
2847 libilbc_encoder_deps="libilbc"
2848 libkvazaar_encoder_deps="libkvazaar"
2849 libmodplug_demuxer_deps="libmodplug"
2850 libmp3lame_encoder_deps="libmp3lame"
2851 libmp3lame_encoder_select="audio_frame_queue"
2852 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2853 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2854 libopencore_amrnb_encoder_select="audio_frame_queue"
2855 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2856 libopenh264_decoder_deps="libopenh264"
2857 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2858 libopenh264_encoder_deps="libopenh264"
2859 libopenjpeg_decoder_deps="libopenjpeg"
2860 libopenjpeg_encoder_deps="libopenjpeg"
2861 libopenmpt_demuxer_deps="libopenmpt"
2862 libopus_decoder_deps="libopus"
2863 libopus_encoder_deps="libopus"
2864 libopus_encoder_select="audio_frame_queue"
2865 libschroedinger_decoder_deps="libschroedinger"
2866 libschroedinger_encoder_deps="libschroedinger"
2867 libshine_encoder_deps="libshine"
2868 libshine_encoder_select="audio_frame_queue"
2869 libspeex_decoder_deps="libspeex"
2870 libspeex_encoder_deps="libspeex"
2871 libspeex_encoder_select="audio_frame_queue"
2872 libtheora_encoder_deps="libtheora"
2873 libtwolame_encoder_deps="libtwolame"
2874 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2875 libvorbis_decoder_deps="libvorbis"
2876 libvorbis_encoder_deps="libvorbis"
2877 libvorbis_encoder_select="audio_frame_queue"
2878 libvpx_vp8_decoder_deps="libvpx"
2879 libvpx_vp8_encoder_deps="libvpx"
2880 libvpx_vp9_decoder_deps="libvpx"
2881 libvpx_vp9_encoder_deps="libvpx"
2882 libwavpack_encoder_deps="libwavpack"
2883 libwebp_encoder_deps="libwebp"
2884 libwebp_anim_encoder_deps="libwebp"
2885 libx262_encoder_deps="libx262"
2886 libx264_encoder_deps="libx264"
2887 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2888 libx264rgb_encoder_select="libx264_encoder"
2889 libx265_encoder_deps="libx265"
2890 libxavs_encoder_deps="libxavs"
2891 libxvid_encoder_deps="libxvid"
2892 libzvbi_teletext_decoder_deps="libzvbi"
2893 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2894 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2895 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2896 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2897 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2898
2899 # demuxers / muxers
2900 ac3_demuxer_select="ac3_parser"
2901 aiff_muxer_select="iso_media"
2902 asf_demuxer_select="riffdec"
2903 asf_o_demuxer_select="riffdec"
2904 asf_muxer_select="riffenc"
2905 asf_stream_muxer_select="asf_muxer"
2906 avi_demuxer_select="iso_media riffdec exif"
2907 avi_muxer_select="riffenc"
2908 caf_demuxer_select="iso_media riffdec"
2909 caf_muxer_select="iso_media"
2910 dash_muxer_select="mp4_muxer"
2911 dirac_demuxer_select="dirac_parser"
2912 dts_demuxer_select="dca_parser"
2913 dtshd_demuxer_select="dca_parser"
2914 dv_demuxer_select="dvprofile"
2915 dv_muxer_select="dvprofile"
2916 dxa_demuxer_select="riffdec"
2917 eac3_demuxer_select="ac3_parser"
2918 f4v_muxer_select="mov_muxer"
2919 fifo_muxer_deps="threads"
2920 flac_demuxer_select="flac_parser"
2921 hds_muxer_select="flv_muxer"
2922 hls_muxer_select="mpegts_muxer"
2923 image2_alias_pix_demuxer_select="image2_demuxer"
2924 image2_brender_pix_demuxer_select="image2_demuxer"
2925 ipod_muxer_select="mov_muxer"
2926 ismv_muxer_select="mov_muxer"
2927 libnut_demuxer_deps="libnut"
2928 libnut_muxer_deps="libnut"
2929 matroska_audio_muxer_select="matroska_muxer"
2930 matroska_demuxer_select="iso_media riffdec"
2931 matroska_demuxer_suggest="bzlib lzo zlib"
2932 matroska_muxer_select="iso_media riffenc"
2933 mmf_muxer_select="riffenc"
2934 mov_demuxer_select="iso_media riffdec"
2935 mov_demuxer_suggest="zlib"
2936 mov_muxer_select="iso_media riffenc rtpenc_chain"
2937 mp3_demuxer_select="mpegaudio_parser"
2938 mp4_muxer_select="mov_muxer"
2939 mpegts_demuxer_select="iso_media"
2940 mpegts_muxer_select="adts_muxer latm_muxer"
2941 mpegtsraw_demuxer_select="mpegts_demuxer"
2942 mxf_d10_muxer_select="mxf_muxer"
2943 mxf_opatom_muxer_select="mxf_muxer"
2944 nut_muxer_select="riffenc"
2945 nuv_demuxer_select="riffdec"
2946 oga_muxer_select="ogg_muxer"
2947 ogg_demuxer_select="dirac_parse"
2948 ogv_muxer_select="ogg_muxer"
2949 opus_muxer_select="ogg_muxer"
2950 psp_muxer_select="mov_muxer"
2951 rtp_demuxer_select="sdp_demuxer"
2952 rtp_muxer_select="golomb"
2953 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2954 rtsp_demuxer_select="http_protocol rtpdec"
2955 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2956 sap_demuxer_select="sdp_demuxer"
2957 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2958 sdp_demuxer_select="rtpdec"
2959 smoothstreaming_muxer_select="ismv_muxer"
2960 spdif_muxer_select="aac_parser"
2961 spx_muxer_select="ogg_muxer"
2962 swf_demuxer_suggest="zlib"
2963 tak_demuxer_select="tak_parser"
2964 tg2_muxer_select="mov_muxer"
2965 tgp_muxer_select="mov_muxer"
2966 vobsub_demuxer_select="mpegps_demuxer"
2967 w64_demuxer_select="wav_demuxer"
2968 w64_muxer_select="wav_muxer"
2969 wav_demuxer_select="riffdec"
2970 wav_muxer_select="riffenc"
2971 webm_muxer_select="iso_media riffenc"
2972 webm_dash_manifest_demuxer_select="matroska_demuxer"
2973 wtv_demuxer_select="mpegts_demuxer riffdec"
2974 wtv_muxer_select="mpegts_muxer riffenc"
2975 xmv_demuxer_select="riffdec"
2976 xwma_demuxer_select="riffdec"
2977
2978 # indevs / outdevs
2979 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2980 alsa_outdev_deps="alsa_asoundlib_h"
2981 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2982 avfoundation_indev_select="avfoundation"
2983 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2984 caca_outdev_deps="libcaca"
2985 decklink_indev_deps="decklink pthreads"
2986 decklink_indev_extralibs="-lstdc++"
2987 decklink_outdev_deps="decklink pthreads"
2988 decklink_outdev_extralibs="-lstdc++"
2989 dshow_indev_deps="IBaseFilter"
2990 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2991 dv1394_indev_deps="dv1394"
2992 dv1394_indev_select="dv_demuxer"
2993 fbdev_indev_deps="linux_fb_h"
2994 fbdev_outdev_deps="linux_fb_h"
2995 gdigrab_indev_deps="CreateDIBSection"
2996 gdigrab_indev_extralibs="-lgdi32"
2997 gdigrab_indev_select="bmp_decoder"
2998 iec61883_indev_deps="libiec61883"
2999 jack_indev_deps="jack_jack_h"
3000 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3001 lavfi_indev_deps="avfilter"
3002 libcdio_indev_deps="libcdio"
3003 libdc1394_indev_deps="libdc1394"
3004 libv4l2_indev_deps="libv4l2"
3005 openal_indev_deps="openal"
3006 opengl_outdev_deps="opengl"
3007 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3008 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3009 pulse_indev_deps="libpulse"
3010 pulse_outdev_deps="libpulse"
3011 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3012 qtkit_indev_select="qtkit"
3013 sdl2_outdev_deps="sdl2"
3014 sndio_indev_deps="sndio_h"
3015 sndio_outdev_deps="sndio_h"
3016 v4l_indev_deps="linux_videodev_h"
3017 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3018 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3019 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3020 vfwcap_indev_extralibs="-lavicap32"
3021 xcbgrab_indev_deps="libxcb"
3022 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3023 xv_outdev_extralibs="-lXv -lX11 -lXext"
3024
3025 # protocols
3026 async_protocol_deps="threads"
3027 bluray_protocol_deps="libbluray"
3028 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3029 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3030 ffrtmpcrypt_protocol_select="tcp_protocol"
3031 ffrtmphttp_protocol_deps="!librtmp_protocol"
3032 ffrtmphttp_protocol_select="http_protocol"
3033 ftp_protocol_select="tcp_protocol"
3034 gopher_protocol_select="network"
3035 http_protocol_select="tcp_protocol"
3036 httpproxy_protocol_select="tcp_protocol"
3037 https_protocol_select="tls_protocol"
3038 icecast_protocol_select="http_protocol"
3039 librtmp_protocol_deps="librtmp"
3040 librtmpe_protocol_deps="librtmp"
3041 librtmps_protocol_deps="librtmp"
3042 librtmpt_protocol_deps="librtmp"
3043 librtmpte_protocol_deps="librtmp"
3044 libsmbclient_protocol_deps="libsmbclient gplv3"
3045 libssh_protocol_deps="libssh"
3046 mmsh_protocol_select="http_protocol"
3047 mmst_protocol_select="network"
3048 rtmp_protocol_deps="!librtmp_protocol"
3049 rtmp_protocol_select="tcp_protocol"
3050 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3051 rtmps_protocol_deps="!librtmp_protocol"
3052 rtmps_protocol_select="tls_protocol"
3053 rtmpt_protocol_select="ffrtmphttp_protocol"
3054 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3055 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3056 rtp_protocol_select="udp_protocol"
3057 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3058 sctp_protocol_select="network"
3059 srtp_protocol_select="rtp_protocol srtp"
3060 tcp_protocol_select="network"
3061 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3062 tls_gnutls_protocol_select="tcp_protocol"
3063 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3064 tls_openssl_protocol_select="tcp_protocol"
3065 tls_schannel_protocol_deps="schannel"
3066 tls_schannel_protocol_select="tcp_protocol"
3067 tls_securetransport_protocol_deps="securetransport"
3068 tls_securetransport_protocol_select="tcp_protocol"
3069 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3070 udp_protocol_select="network"
3071 udplite_protocol_select="network"
3072 unix_protocol_deps="sys_un_h"
3073 unix_protocol_select="network"
3074
3075 # filters
3076 afftfilt_filter_deps="avcodec"
3077 afftfilt_filter_select="fft"
3078 amovie_filter_deps="avcodec avformat"
3079 aresample_filter_deps="swresample"
3080 ass_filter_deps="libass"
3081 atempo_filter_deps="avcodec"
3082 atempo_filter_select="rdft"
3083 azmq_filter_deps="libzmq"
3084 blackframe_filter_deps="gpl"
3085 boxblur_filter_deps="gpl"
3086 bs2b_filter_deps="libbs2b"
3087 colormatrix_filter_deps="gpl"
3088 cover_rect_filter_deps="avcodec avformat gpl"
3089 cropdetect_filter_deps="gpl"
3090 deinterlace_qsv_filter_deps="libmfx"
3091 deinterlace_vaapi_filter_deps="vaapi"
3092 delogo_filter_deps="gpl"
3093 deshake_filter_select="pixelutils"
3094 drawtext_filter_deps="libfreetype"
3095 eq_filter_deps="gpl"
3096 fftfilt_filter_deps="avcodec"
3097 fftfilt_filter_select="rdft"
3098 find_rect_filter_deps="avcodec avformat gpl"
3099 firequalizer_filter_deps="avcodec"
3100 firequalizer_filter_select="rdft"
3101 flite_filter_deps="libflite"
3102 framerate_filter_select="pixelutils"
3103 frei0r_filter_deps="frei0r dlopen"
3104 frei0r_src_filter_deps="frei0r dlopen"
3105 fspp_filter_deps="gpl"
3106 geq_filter_deps="gpl"
3107 histeq_filter_deps="gpl"
3108 hqdn3d_filter_deps="gpl"
3109 interlace_filter_deps="gpl"
3110 kerndeint_filter_deps="gpl"
3111 ladspa_filter_deps="ladspa dlopen"
3112 mcdeint_filter_deps="avcodec gpl"
3113 movie_filter_deps="avcodec avformat"
3114 mpdecimate_filter_deps="gpl"
3115 mpdecimate_filter_select="pixelutils"
3116 mptestsrc_filter_deps="gpl"
3117 negate_filter_deps="lut_filter"
3118 nnedi_filter_deps="gpl"
3119 ocr_filter_deps="libtesseract"
3120 ocv_filter_deps="libopencv"
3121 owdenoise_filter_deps="gpl"
3122 pan_filter_deps="swresample"
3123 perspective_filter_deps="gpl"
3124 phase_filter_deps="gpl"
3125 pp7_filter_deps="gpl"
3126 pp_filter_deps="gpl postproc"
3127 pullup_filter_deps="gpl"
3128 removelogo_filter_deps="avcodec avformat swscale"
3129 repeatfields_filter_deps="gpl"
3130 resample_filter_deps="avresample"
3131 rubberband_filter_deps="librubberband"
3132 sab_filter_deps="gpl swscale"
3133 scale2ref_filter_deps="swscale"
3134 scale_filter_deps="swscale"
3135 scale_qsv_filter_deps="libmfx"
3136 select_filter_select="pixelutils"
3137 showcqt_filter_deps="avcodec avformat swscale"
3138 showcqt_filter_select="fft"
3139 showfreqs_filter_deps="avcodec"
3140 showfreqs_filter_select="fft"
3141 showspectrum_filter_deps="avcodec"
3142 showspectrum_filter_select="fft"
3143 showspectrumpic_filter_deps="avcodec"
3144 showspectrumpic_filter_select="fft"
3145 signature_filter_deps="gpl avcodec avformat"
3146 smartblur_filter_deps="gpl swscale"
3147 sofalizer_filter_deps="netcdf avcodec"
3148 sofalizer_filter_select="fft"
3149 spectrumsynth_filter_deps="avcodec"
3150 spectrumsynth_filter_select="fft"
3151 spp_filter_deps="gpl avcodec"
3152 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3153 stereo3d_filter_deps="gpl"
3154 subtitles_filter_deps="avformat avcodec libass"
3155 super2xsai_filter_deps="gpl"
3156 pixfmts_super2xsai_test_deps="super2xsai_filter"
3157 tinterlace_filter_deps="gpl"
3158 tinterlace_merge_test_deps="tinterlace_filter"
3159 tinterlace_pad_test_deps="tinterlace_filter"
3160 uspp_filter_deps="gpl avcodec"
3161 vaguedenoiser_filter_deps="gpl"
3162 vidstabdetect_filter_deps="libvidstab"
3163 vidstabtransform_filter_deps="libvidstab"
3164 zmq_filter_deps="libzmq"
3165 zoompan_filter_deps="swscale"
3166 zscale_filter_deps="libzimg"
3167 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3168
3169 # examples
3170 avio_dir_cmd_deps="avformat avutil"
3171 avio_reading_deps="avformat avcodec avutil"
3172 decode_audio_example_deps="avcodec avutil"
3173 decode_video_example_deps="avcodec avutil"
3174 demuxing_decoding_example_deps="avcodec avformat avutil"
3175 encode_audio_example_deps="avcodec avutil"
3176 encode_video_example_deps="avcodec avutil"
3177 extract_mvs_example_deps="avcodec avformat avutil"
3178 filter_audio_example_deps="avfilter avutil"
3179 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3180 filtering_video_example_deps="avfilter avcodec avformat avutil"
3181 http_multiclient_example_deps="avformat avutil fork"
3182 metadata_example_deps="avformat avutil"
3183 muxing_example_deps="avcodec avformat avutil swscale"
3184 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3185 remuxing_example_deps="avcodec avformat avutil"
3186 resampling_audio_example_deps="avutil swresample"
3187 scaling_video_example_deps="avutil swscale"
3188 transcode_aac_example_deps="avcodec avformat swresample"
3189 transcoding_example_deps="avfilter avcodec avformat avutil"
3190
3191 # libraries, in linking order
3192 avcodec_deps="avutil"
3193 avdevice_deps="avformat avcodec avutil"
3194 avfilter_deps="avutil"
3195 avformat_deps="avcodec avutil"
3196 avresample_deps="avutil"
3197 postproc_deps="avutil gpl"
3198 swresample_deps="avutil"
3199 swscale_deps="avutil"
3200
3201 # programs
3202 ffmpeg_deps="avcodec avfilter avformat swresample"
3203 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3204                null_filter
3205                trim_filter"
3206 ffplay_deps="avcodec avformat swscale swresample sdl2"
3207 ffplay_libs='$sdl2_libs'
3208 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3209 ffprobe_deps="avcodec avformat"
3210 ffserver_deps="avformat fork sarestart"
3211 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3212
3213 # documentation
3214 podpages_deps="perl"
3215 manpages_deps="perl pod2man"
3216 htmlpages_deps="perl"
3217 htmlpages_deps_any="makeinfo_html texi2html"
3218 txtpages_deps="perl makeinfo"
3219 doc_deps_any="manpages htmlpages podpages txtpages"
3220
3221 # default parameters
3222
3223 logfile="config.log"
3224
3225 # installation paths
3226 prefix_default="/usr/local"
3227 bindir_default='${prefix}/bin'
3228 datadir_default='${prefix}/share/ffmpeg'
3229 docdir_default='${prefix}/share/doc/ffmpeg'
3230 incdir_default='${prefix}/include'
3231 libdir_default='${prefix}/lib'
3232 mandir_default='${prefix}/share/man'
3233
3234 # toolchain
3235 ar_default="ar"
3236 cc_default="gcc"
3237 cxx_default="g++"
3238 host_cc_default="gcc"
3239 doxygen_default="doxygen"
3240 install="install"
3241 ln_s_default="ln -s -f"
3242 nm_default="nm -g"
3243 objformat="elf"
3244 pkg_config_default=pkg-config
3245 ranlib_default="ranlib"
3246 strip_default="strip"
3247 version_script='--version-script'
3248 yasmexe_default="yasm"
3249 windres_default="windres"
3250
3251 # OS
3252 target_os_default=$(tolower $(uname -s))
3253 host_os=$target_os_default
3254
3255 # machine
3256 if test "$target_os_default" = aix; then
3257     arch_default=$(uname -p)
3258     strip_default="strip -X32_64"
3259 else
3260     arch_default=$(uname -m)
3261 fi
3262 cpu="generic"
3263 intrinsics="none"
3264
3265 # configurable options
3266 enable $PROGRAM_LIST
3267 enable $DOCUMENT_LIST
3268 enable $EXAMPLE_LIST
3269 enable $(filter_out avresample $LIBRARY_LIST)
3270 enable stripping
3271
3272 enable asm
3273 enable debug
3274 enable doc
3275 enable faan faandct faanidct
3276 enable optimizations
3277 enable runtime_cpudetect
3278 enable safe_bitstream_reader
3279 enable static
3280 enable swscale_alpha
3281 enable valgrind_backtrace
3282
3283 sws_max_filter_size_default=256
3284 set_default sws_max_filter_size
3285
3286 # build settings
3287 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3288 LIBPREF="lib"
3289 LIBSUF=".a"
3290 FULLNAME='$(NAME)$(BUILDSUF)'
3291 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3292 SLIBPREF="lib"
3293 SLIBSUF=".so"
3294 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3295 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3296 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3297 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3298 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3299 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3300 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3301
3302 asflags_filter=echo
3303 cflags_filter=echo
3304 ldflags_filter=echo
3305
3306 AS_C='-c'
3307 AS_O='-o $@'
3308 CC_C='-c'
3309 CC_E='-E -o $@'
3310 CC_O='-o $@'
3311 CXX_C='-c'
3312 CXX_O='-o $@'
3313 OBJCC_C='-c'
3314 OBJCC_E='-E -o $@'
3315 OBJCC_O='-o $@'
3316 LD_O='-o $@'
3317 LD_LIB='-l%'
3318 LD_PATH='-L'
3319 HOSTCC_C='-c'
3320 HOSTCC_E='-E -o $@'
3321 HOSTCC_O='-o $@'
3322 HOSTLD_O='-o $@'
3323
3324 host_libs='-lm'
3325 host_cflags_filter=echo
3326 host_ldflags_filter=echo
3327
3328 target_path='$(CURDIR)'
3329
3330 # since the object filename is not given with the -MM flag, the compiler
3331 # is only able to print the basename, and we must add the path ourselves
3332 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3333 DEPFLAGS='-MM'
3334
3335 # find source path
3336 if test -f configure; then
3337     source_path=.
3338 else
3339     source_path=$(cd $(dirname "$0"); pwd)
3340     case "$source_path" in
3341         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3342     esac
3343     test -e "$source_path/config.h" &&
3344         die "Out of tree builds are impossible with config.h in source dir."
3345 fi
3346
3347 for v in "$@"; do
3348     r=${v#*=}
3349     l=${v%"$r"}
3350     r=$(sh_quote "$r")
3351     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3352 done
3353
3354 find_things(){
3355     thing=$1
3356     pattern=$2
3357     file=$source_path/$3
3358     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3359 }
3360
3361 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3362 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3363 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3364 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3365 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3366 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3367 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3368 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3369 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3370
3371 find_things_extern(){
3372     thing=$1
3373     pattern=$2
3374     file=$source_path/$3
3375     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3376 }
3377
3378 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3379 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3380
3381 ALL_COMPONENTS="
3382     $BSF_LIST
3383     $DECODER_LIST
3384     $DEMUXER_LIST
3385     $ENCODER_LIST
3386     $FILTER_LIST
3387     $HWACCEL_LIST
3388     $INDEV_LIST
3389     $MUXER_LIST
3390     $OUTDEV_LIST
3391     $PARSER_LIST
3392     $PROTOCOL_LIST
3393 "
3394
3395 for n in $COMPONENT_LIST; do
3396     v=$(toupper ${n%s})_LIST
3397     eval enable \$$v
3398     eval ${n}_if_any="\$$v"
3399 done
3400
3401 enable $ARCH_EXT_LIST
3402
3403 die_unknown(){
3404     echo "Unknown option \"$1\"."
3405     echo "See $0 --help for available options."
3406     exit 1
3407 }
3408
3409 print_in_columns() {
3410     cols=$(expr $ncols / 24)
3411     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3412 }
3413
3414 show_list() {
3415     suffix=_$1
3416     shift
3417     echo $* | sed s/$suffix//g | print_in_columns
3418     exit 0
3419 }
3420
3421 rand_list(){
3422     IFS=', '
3423     set -- $*
3424     unset IFS
3425     for thing; do
3426         comp=${thing%:*}
3427         prob=${thing#$comp}
3428         prob=${prob#:}
3429         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3430         echo "prob ${prob:-0.5}"
3431         printf '%s\n' $comp
3432     done
3433 }
3434
3435 do_random(){
3436     action=$1
3437     shift
3438     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3439     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3440 }
3441
3442 for opt do
3443     optval="${opt#*=}"
3444     case "$opt" in
3445         --extra-ldflags=*)
3446             add_ldflags $optval
3447         ;;
3448         --extra-ldexeflags=*)
3449             add_ldexeflags $optval
3450         ;;
3451         --extra-ldlibflags=*)
3452             add_ldlibflags $optval
3453         ;;
3454         --extra-libs=*)
3455             add_extralibs $optval
3456         ;;
3457         --disable-devices)
3458             disable $INDEV_LIST $OUTDEV_LIST
3459         ;;
3460         --enable-debug=*)
3461             debuglevel="$optval"
3462         ;;
3463         --disable-programs)
3464             disable $PROGRAM_LIST
3465         ;;
3466         --disable-everything)
3467             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3468         ;;
3469         --disable-all)
3470             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3471             disable $LIBRARY_LIST $PROGRAM_LIST doc
3472             enable avutil
3473         ;;
3474         --enable-random|--disable-random)
3475             action=${opt%%-random}
3476             do_random ${action#--} $COMPONENT_LIST
3477         ;;
3478         --enable-random=*|--disable-random=*)
3479             action=${opt%%-random=*}
3480             do_random ${action#--} $optval
3481         ;;
3482         --enable-*=*|--disable-*=*)
3483             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3484             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3485             eval list=\$$(toupper $thing)_LIST
3486             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3487             list=$(filter "$name" $list)
3488             [ "$list" = "" ] && warn "Option $opt did not match anything"
3489             $action $list
3490         ;;
3491         --enable-?*|--disable-?*)
3492             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3493             if is_in $option $COMPONENT_LIST; then
3494                 test $action = disable && action=unset
3495                 eval $action \$$(toupper ${option%s})_LIST
3496             elif is_in $option $CMDLINE_SELECT; then
3497                 $action $option
3498             else
3499                 die_unknown $opt
3500             fi
3501         ;;
3502         --list-*)
3503             NAME="${opt#--list-}"
3504             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3505             NAME=${NAME%s}
3506             eval show_list $NAME \$$(toupper $NAME)_LIST
3507         ;;
3508         --help|-h) show_help
3509         ;;
3510         --quiet|-q) quiet=yes
3511         ;;
3512         --fatal-warnings) enable fatal_warnings
3513         ;;
3514         *)
3515             optname="${opt%%=*}"
3516             optname="${optname#--}"
3517             optname=$(echo "$optname" | sed 's/-/_/g')
3518             if is_in $optname $CMDLINE_SET; then
3519                 eval $optname='$optval'
3520             elif is_in $optname $CMDLINE_APPEND; then
3521                 append $optname "$optval"
3522             else
3523                 die_unknown $opt
3524             fi
3525         ;;
3526     esac
3527 done
3528
3529 for e in $env; do
3530     eval "export $e"
3531 done
3532
3533 # Mark specifically enabled, but normally autodetected libraries as requested.
3534 for lib in $AUTODETECT_LIBS; do
3535     enabled $lib && request $lib
3536 done
3537
3538 # Enable platform codecs by default.
3539 enable_weak audiotoolbox
3540
3541 # Enable hwaccels by default.
3542 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3543 enable_weak xlib
3544
3545 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3546
3547 disabled logging && logfile=/dev/null
3548
3549 die_license_disabled() {
3550     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3551 }
3552
3553 die_license_disabled_gpl() {
3554     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3555 }
3556
3557 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3558 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3559
3560 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3561 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3562
3563 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3564
3565 # Disable all the library-specific components if the library itself
3566 # is disabled, see AVCODEC_LIST and following _LIST variables.
3567
3568 disable_components(){
3569     disabled ${1} && disable $(
3570         eval components="\$$(toupper ${1})_COMPONENTS"
3571         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3572     )
3573 }
3574
3575 map 'disable_components $v' $LIBRARY_LIST
3576
3577 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3578 set >> $logfile
3579
3580 test -n "$valgrind" && toolchain="valgrind-memcheck"
3581
3582 case "$toolchain" in
3583     *-asan)
3584         cc_default="${toolchain%-asan}"
3585         add_cflags  -fsanitize=address
3586         add_ldflags -fsanitize=address
3587     ;;
3588     *-msan)
3589         cc_default="${toolchain%-msan}"
3590         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3591         add_ldflags -fsanitize=memory
3592     ;;
3593     *-tsan)
3594         cc_default="${toolchain%-tsan}"
3595         add_cflags  -fsanitize=thread -fPIE
3596         add_ldflags -fsanitize=thread -pie
3597         case "$toolchain" in
3598             gcc-tsan)
3599                 add_cflags  -fPIC
3600                 add_ldflags -fPIC
3601                 ;;
3602         esac
3603     ;;
3604     *-usan)
3605         cc_default="${toolchain%-usan}"
3606         add_cflags  -fsanitize=undefined
3607         add_ldflags -fsanitize=undefined
3608     ;;
3609     valgrind-*)
3610         target_exec_default="valgrind"
3611         case "$toolchain" in
3612             valgrind-massif)
3613                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3614                 ;;
3615             valgrind-memcheck)
3616                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3617                 ;;
3618         esac
3619     ;;
3620     msvc)
3621         # Check whether the current MSVC version needs the C99 converter.
3622         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3623         # support enough of C99 to build ffmpeg. Default to the new
3624         # behaviour if the regexp was unable to match anything, since this
3625         # successfully parses the version number of existing supported
3626         # versions that require the converter (MSVC 2010 and 2012).
3627         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3628         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3629             cc_default="cl"
3630         else
3631             cc_default="c99wrap cl"
3632         fi
3633         ld_default="$source_path/compat/windows/mslink"
3634         nm_default="dumpbin -symbols"
3635         ar_default="lib"
3636         case "$arch" in
3637         arm*)
3638             as_default="armasm"
3639             ;;
3640         esac
3641         target_os_default="win32"
3642         # Use a relative path for TMPDIR. This makes sure all the
3643         # ffconf temp files are written with a relative path, avoiding
3644         # issues with msys/win32 path conversion for MSVC parameters
3645         # such as -Fo<file> or -out:<file>.
3646         TMPDIR=.
3647     ;;
3648     icl)
3649         cc_default="icl"
3650         ld_default="xilink"
3651         nm_default="dumpbin -symbols"
3652         ar_default="xilib"
3653         target_os_default="win32"
3654         TMPDIR=.
3655     ;;
3656     gcov)
3657         add_cflags  -fprofile-arcs -ftest-coverage
3658         add_ldflags -fprofile-arcs -ftest-coverage
3659     ;;
3660     llvm-cov)
3661         add_cflags -fprofile-arcs -ftest-coverage
3662         add_ldflags --coverage
3663     ;;
3664     hardened)
3665         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3666         add_cflags   -fno-strict-overflow -fstack-protector-all
3667         add_ldflags  -Wl,-z,relro -Wl,-z,now
3668         add_cflags   -fPIE
3669         add_ldexeflags -fPIE -pie
3670     ;;
3671     ?*)
3672         die "Unknown toolchain $toolchain"
3673     ;;
3674 esac
3675
3676 test -n "$cross_prefix" && enable cross_compile
3677
3678 if enabled cross_compile; then
3679     test -n "$arch" && test -n "$target_os" ||
3680         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3681 fi
3682
3683 ar_default="${cross_prefix}${ar_default}"
3684 cc_default="${cross_prefix}${cc_default}"
3685 cxx_default="${cross_prefix}${cxx_default}"
3686 nm_default="${cross_prefix}${nm_default}"
3687 pkg_config_default="${cross_prefix}${pkg_config_default}"
3688 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3689     ranlib_default="${cross_prefix}${ranlib_default} -D"
3690 else
3691     ranlib_default="${cross_prefix}${ranlib_default}"
3692 fi
3693 strip_default="${cross_prefix}${strip_default}"
3694 windres_default="${cross_prefix}${windres_default}"
3695
3696 sysinclude_default="${sysroot}/usr/include"
3697
3698 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3699     target_exec target_os yasmexe
3700 enabled cross_compile || host_cc_default=$cc
3701 set_default host_cc
3702
3703 pkg_config_fail_message=""
3704 if ! $pkg_config --version >/dev/null 2>&1; then
3705     warn "$pkg_config not found, library detection may fail."
3706     pkg_config=false
3707 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3708     pkg_config_fail_message="
3709 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3710 fi
3711
3712 if test $doxygen != $doxygen_default && \
3713   ! $doxygen --version >/dev/null 2>&1; then
3714     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3715 fi
3716
3717 exesuf() {
3718     case $1 in
3719         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3720     esac
3721 }
3722
3723 EXESUF=$(exesuf $target_os)
3724 HOSTEXESUF=$(exesuf $host_os)
3725
3726 # set temporary file name
3727 : ${TMPDIR:=$TEMPDIR}
3728 : ${TMPDIR:=$TMP}
3729 : ${TMPDIR:=/tmp}
3730
3731 if [ -n "$tempprefix" ] ; then
3732     mktemp(){
3733         echo $tempprefix.${HOSTNAME}.${UID}
3734     }
3735 elif ! check_cmd mktemp -u XXXXXX; then
3736     # simple replacement for missing mktemp
3737     # NOT SAFE FOR GENERAL USE
3738     mktemp(){
3739         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3740     }
3741 fi
3742
3743 tmpfile(){
3744     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3745         (set -C; exec > $tmp) 2>/dev/null ||
3746         die "Unable to create temporary file in $TMPDIR."
3747     append TMPFILES $tmp
3748     eval $1=$tmp
3749 }
3750
3751 trap 'rm -f -- $TMPFILES' EXIT
3752
3753 tmpfile TMPASM .asm
3754 tmpfile TMPC   .c
3755 tmpfile TMPCPP .cpp
3756 tmpfile TMPE   $EXESUF
3757 tmpfile TMPH   .h
3758 tmpfile TMPM   .m
3759 tmpfile TMPO   .o
3760 tmpfile TMPS   .S
3761 tmpfile TMPSH  .sh
3762 tmpfile TMPV   .ver
3763
3764 unset -f mktemp
3765
3766 chmod +x $TMPE
3767
3768 # make sure we can execute files in $TMPDIR
3769 cat > $TMPSH 2>> $logfile <<EOF
3770 #! /bin/sh
3771 EOF
3772 chmod +x $TMPSH >> $logfile 2>&1
3773 if ! $TMPSH >> $logfile 2>&1; then
3774     cat <<EOF
3775 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3776 variable to another directory and make sure that it is not mounted noexec.
3777 EOF
3778     die "Sanity test failed."
3779 fi
3780
3781 armasm_flags(){
3782     for flag; do
3783         case $flag in
3784             # Filter out MSVC cl.exe options from cflags that shouldn't
3785             # be passed to gas-preprocessor
3786             -M[TD]*)                                            ;;
3787             *)                  echo $flag                      ;;
3788         esac
3789    done
3790 }
3791
3792 ccc_flags(){
3793     for flag; do
3794         case $flag in
3795             -std=c99)           echo -c99                       ;;
3796             -mcpu=*)            echo -arch ${flag#*=}           ;;
3797             -mieee)             echo -ieee                      ;;
3798             -O*|-fast)          echo $flag                      ;;
3799             -fno-math-errno)    echo -assume nomath_errno       ;;
3800             -g)                 echo -g3                        ;;
3801             -Wall)              echo -msg_enable level2         ;;
3802             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3803             -Wl,*)              echo $flag                      ;;
3804             -f*|-W*)                                            ;;
3805             *)                  echo $flag                      ;;
3806         esac
3807    done
3808 }
3809
3810 cparser_flags(){
3811     for flag; do
3812         case $flag in
3813             -Wno-switch)             echo -Wno-switch-enum ;;
3814             -Wno-format-zero-length) ;;
3815             -Wdisabled-optimization) ;;
3816             -Wno-pointer-sign)       echo -Wno-other ;;
3817             *)                       echo $flag ;;
3818         esac
3819     done
3820 }
3821
3822 msvc_common_flags(){
3823     for flag; do
3824         case $flag in
3825             # In addition to specifying certain flags under the compiler
3826             # specific filters, they must be specified here as well or else the
3827             # generic catch all at the bottom will print the original flag.
3828             -Wall)                ;;
3829             -std=c99)             ;;
3830             # Common flags
3831             -fomit-frame-pointer) ;;
3832             -g)                   echo -Z7 ;;
3833             -fno-math-errno)      ;;
3834             -fno-common)          ;;
3835             -fno-signed-zeros)    ;;
3836             -fPIC)                ;;
3837             -mthumb)              ;;
3838             -march=*)             ;;
3839             -lz)                  echo zlib.lib ;;
3840             -lavicap32)           echo vfw32.lib user32.lib ;;
3841             -lx264)               echo libx264.lib ;;
3842             -l*)                  echo ${flag#-l}.lib ;;
3843             -LARGEADDRESSAWARE)   echo $flag ;;
3844             -L*)                  echo -libpath:${flag#-L} ;;
3845             *)                    echo $flag ;;
3846         esac
3847     done
3848 }
3849
3850 msvc_flags(){
3851     msvc_common_flags "$@"
3852     for flag; do
3853         case $flag in
3854             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3855                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3856                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3857                                        -wd4307 \
3858                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3859         esac
3860     done
3861 }
3862
3863 icl_flags(){
3864     msvc_common_flags "$@"
3865     for flag; do
3866         case $flag in
3867             # Despite what Intel's documentation says -Wall, which is supported
3868             # on Windows, does enable remarks so disable them here.
3869             -Wall)                echo $flag -Qdiag-disable:remark ;;
3870             -std=c99)             echo -Qstd=c99 ;;
3871             -flto)                echo -ipo ;;
3872         esac
3873     done
3874 }
3875
3876 icc_flags(){
3877     for flag; do
3878         case $flag in
3879             -flto)                echo -ipo ;;
3880             *)                    echo $flag ;;
3881         esac
3882     done
3883 }
3884
3885 pgi_flags(){
3886     for flag; do
3887         case $flag in
3888             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3889             -fomit-frame-pointer) echo -Mnoframe ;;
3890             -g)                   echo -gopt ;;
3891             *)                    echo $flag ;;
3892         esac
3893     done
3894 }
3895
3896 suncc_flags(){
3897     for flag; do
3898         case $flag in
3899             -march=*|-mcpu=*)
3900                 case "${flag#*=}" in
3901                     native)                   echo -xtarget=native       ;;
3902                     v9|niagara)               echo -xarch=sparc          ;;
3903                     ultrasparc)               echo -xarch=sparcvis       ;;
3904                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3905                     i586|pentium)             echo -xchip=pentium        ;;
3906                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3907                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3908                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3909                     pentium4*)          echo -xtarget=pentium4           ;;
3910                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3911                     *-sse3)             echo -xarch=sse3                 ;;
3912                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3913                     bonnell)                   echo -xarch=ssse3         ;;
3914                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3915                     westmere)                  echo -xtarget=westmere    ;;
3916                     silvermont)                echo -xarch=sse4_2        ;;
3917                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3918                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3919                                                echo -xarch=avx           ;;
3920                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3921                     btver1)                    echo -xarch=amdsse4a      ;;
3922                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3923                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3924                     k8|opteron|athlon64|athlon-fx)
3925                                                echo -xarch=sse2a         ;;
3926                     athlon*)                   echo -xarch=pentium_proa  ;;
3927                 esac
3928                 ;;
3929             -std=c99)             echo -xc99              ;;
3930             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3931             -fPIC)                echo -KPIC -xcode=pic32 ;;
3932             -W*,*)                echo $flag              ;;
3933             -f*-*|-W*|-mimpure-text)                      ;;
3934             -shared)              echo -G                 ;;
3935             *)                    echo $flag              ;;
3936         esac
3937     done
3938 }
3939
3940 tms470_flags(){
3941     for flag; do
3942         case $flag in
3943             -march=*|-mcpu=*)
3944                 case "${flag#*=}" in
3945                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3946                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3947                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3948                     armv6*|arm11*)          echo -mv=6   ;;
3949                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3950                                             echo -mv=5e  ;;
3951                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3952                 esac
3953                 ;;
3954             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3955             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3956             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3957             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3958             -msoft-float)   echo --float_support=vfplib       ;;
3959             -O[0-3]|-mf=*)  echo $flag                        ;;
3960             -g)             echo -g -mn                       ;;
3961             -pds=*)         echo $flag                        ;;
3962             -D*|-I*)        echo $flag                        ;;
3963             --gcc|--abi=*)  echo $flag                        ;;
3964             -me)            echo $flag                        ;;
3965         esac
3966     done
3967 }
3968
3969 probe_cc(){
3970     pfx=$1
3971     _cc=$2
3972     first=$3
3973
3974     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3975     unset _ld_o _ldflags _ld_lib _ld_path
3976     unset _depflags _DEPCMD _DEPFLAGS
3977     _flags_filter=echo
3978
3979     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3980         true # no-op to avoid reading stdin in following checks
3981     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3982         _type=llvm_gcc
3983         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3984         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3985         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3986         _cflags_speed='-O3'
3987         _cflags_size='-Os'
3988     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3989         _type=gcc
3990         gcc_version=$($_cc --version | head -n1)
3991         gcc_basever=$($_cc -dumpversion)
3992         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3993         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3994         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3995         case $gcc_basever in
3996             2) ;;
3997             2.*) ;;
3998             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3999         esac
4000         if [ "$first" = true ]; then
4001             case $gcc_basever in
4002                 4.2*)
4003                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4004             esac
4005         fi
4006         _cflags_speed='-O3'
4007         _cflags_size='-Os'
4008     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4009         _type=icc
4010         _ident=$($_cc --version | head -n1)
4011         _depflags='-MMD'
4012         _cflags_speed='-O3'
4013         _cflags_size='-Os'
4014         _cflags_noopt='-O1'
4015         _flags_filter=icc_flags
4016     elif $_cc -v 2>&1 | grep -q xlc; then
4017         _type=xlc
4018         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4019         _cflags_speed='-O5'
4020         _cflags_size='-O5 -qcompact'
4021     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4022         _type=ccc
4023         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4024         _DEPFLAGS='-M'
4025         _cflags_speed='-fast'
4026         _cflags_size='-O1'
4027         _flags_filter=ccc_flags
4028     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4029         test -d "$sysroot" || die "No valid sysroot specified."
4030         _type=armcc
4031         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4032         armcc_conf="$PWD/armcc.conf"
4033         $_cc --arm_linux_configure                 \
4034              --arm_linux_config_file="$armcc_conf" \
4035              --configure_sysroot="$sysroot"        \
4036              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4037              die "Error creating armcc configuration file."
4038         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4039         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4040         as_default="${cross_prefix}gcc"
4041         _depflags='-MMD'
4042         _cflags_speed='-O3'
4043         _cflags_size='-Os'
4044     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4045         _type=tms470
4046         _ident=$($_cc -version | head -n1 | tr -s ' ')
4047         _flags='--gcc --abi=eabi -me'
4048         _cc_e='-ppl -fe=$@'
4049         _cc_o='-fe=$@'
4050         _depflags='-ppa -ppd=$(@:.o=.d)'
4051         _cflags_speed='-O3 -mf=5'
4052         _cflags_size='-O3 -mf=2'
4053         _flags_filter=tms470_flags
4054     elif $_cc -v 2>&1 | grep -q clang; then
4055         _type=clang
4056         _ident=$($_cc --version 2>/dev/null | head -n1)
4057         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4058         _cflags_speed='-O3'
4059         _cflags_size='-Oz'
4060     elif $_cc -V 2>&1 | grep -q Sun; then
4061         _type=suncc
4062         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4063         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4064         _DEPFLAGS='-xM1 -xc99'
4065         _ldflags='-std=c99'
4066         _cflags_speed='-O5'
4067         _cflags_size='-O5 -xspace'
4068         _flags_filter=suncc_flags
4069     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4070         _type=pathscale
4071         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4072         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4073         _cflags_speed='-O2'
4074         _cflags_size='-Os'
4075         _flags_filter='filter_out -Wdisabled-optimization'
4076     elif $_cc -v 2>&1 | grep -q Open64; then
4077         _type=open64
4078         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4079         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4080         _cflags_speed='-O2'
4081         _cflags_size='-Os'
4082         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4083     elif $_cc -V 2>&1 | grep -q Portland; then
4084         _type=pgi
4085         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4086         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4087         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4088         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4089         _cflags_noopt="-O"
4090         _flags_filter=pgi_flags
4091     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4092         _type=armasm
4093         _ident=$($_cc | head -n1)
4094         # 4509: "This form of conditional instruction is deprecated"
4095         _flags="-nologo -ignore 4509"
4096         _flags_filter=armasm_flags<