Merge commit '404cb74793284aa03e2e1a7e911c980c4cba0e9e'
[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_cflags_headers(){
832     append CFLAGS_HEADERS $($cflags_filter "$@")
833 }
834
835 add_cxxflags(){
836     append CXXFLAGS $($cflags_filter "$@")
837 }
838
839 add_asflags(){
840     append ASFLAGS $($asflags_filter "$@")
841 }
842
843 add_objcflags(){
844     append OBJCFLAGS $($objcflags_filter "$@")
845 }
846
847 add_ldflags(){
848     append LDFLAGS $($ldflags_filter "$@")
849 }
850
851 add_ldexeflags(){
852     append LDEXEFLAGS $($ldflags_filter "$@")
853 }
854
855 add_ldlibflags(){
856     append LDLIBFLAGS $($ldflags_filter "$@")
857 }
858
859 add_stripflags(){
860     append ASMSTRIPFLAGS "$@"
861 }
862
863 add_extralibs(){
864     prepend extralibs $($ldflags_filter "$@")
865 }
866
867 add_host_cppflags(){
868     append host_cppflags "$@"
869 }
870
871 add_host_cflags(){
872     append host_cflags $($host_cflags_filter "$@")
873 }
874
875 add_host_ldflags(){
876     append host_ldflags $($host_ldflags_filter "$@")
877 }
878
879 add_compat(){
880     append compat_objs $1
881     shift
882     map 'add_cppflags -D$v' "$@"
883 }
884
885 check_cmd(){
886     log "$@"
887     "$@" >> $logfile 2>&1
888 }
889
890 check_stat(){
891     log check_stat "$@"
892     stat "$1" >> $logfile 2>&1
893 }
894
895 cc_o(){
896     eval printf '%s\\n' $CC_O
897 }
898
899 cc_e(){
900     eval printf '%s\\n' $CC_E
901 }
902
903 check_cc(){
904     log check_cc "$@"
905     cat > $TMPC
906     log_file $TMPC
907     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
908 }
909
910 check_cxx(){
911     log check_cxx "$@"
912     cat > $TMPCPP
913     log_file $TMPCPP
914     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
915 }
916
917 check_objcc(){
918     log check_objcc "$@"
919     cat > $TMPM
920     log_file $TMPM
921     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
922 }
923
924 check_cpp(){
925     log check_cpp "$@"
926     cat > $TMPC
927     log_file $TMPC
928     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
929 }
930
931 as_o(){
932     eval printf '%s\\n' $AS_O
933 }
934
935 check_as(){
936     log check_as "$@"
937     cat > $TMPS
938     log_file $TMPS
939     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
940 }
941
942 check_inline_asm(){
943     log check_inline_asm "$@"
944     name="$1"
945     code="$2"
946     shift 2
947     disable $name
948     check_cc "$@" <<EOF && enable $name
949 void foo(void){ __asm__ volatile($code); }
950 EOF
951 }
952
953 check_inline_asm_flags(){
954     log check_inline_asm_flags "$@"
955     name="$1"
956     code="$2"
957     flags=''
958     shift 2
959     while [ "$1" != "" ]; do
960       append flags $1
961       shift
962     done;
963     disable $name
964     cat > $TMPC <<EOF
965 void foo(void){ __asm__ volatile($code); }
966 EOF
967     log_file $TMPC
968     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
969     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
970 }
971
972 check_insn(){
973     log check_insn "$@"
974     check_inline_asm ${1}_inline "\"$2\""
975     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
976 }
977
978 check_yasm(){
979     log check_yasm "$@"
980     echo "$1" > $TMPS
981     log_file $TMPS
982     shift 1
983     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
984 }
985
986 ld_o(){
987     eval printf '%s\\n' $LD_O
988 }
989
990 check_ld(){
991     log check_ld "$@"
992     type=$1
993     shift 1
994     flags=$(filter_out '-l*|*.so' $@)
995     libs=$(filter '-l*|*.so' $@)
996     check_$type $($cflags_filter $flags) || return
997     flags=$($ldflags_filter $flags)
998     libs=$($ldflags_filter $libs)
999     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1000 }
1001
1002 print_include(){
1003     hdr=$1
1004     test "${hdr%.h}" = "${hdr}" &&
1005         echo "#include $hdr"    ||
1006         echo "#include <$hdr>"
1007 }
1008
1009 check_code(){
1010     log check_code "$@"
1011     check=$1
1012     headers=$2
1013     code=$3
1014     shift 3
1015     {
1016         for hdr in $headers; do
1017             print_include $hdr
1018         done
1019         echo "int main(void) { $code; return 0; }"
1020     } | check_$check "$@"
1021 }
1022
1023 check_cppflags(){
1024     log check_cppflags "$@"
1025     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1026 int x;
1027 EOF
1028 }
1029
1030 test_cflags(){
1031     log test_cflags "$@"
1032     set -- $($cflags_filter "$@")
1033     check_cc "$@" <<EOF
1034 int x;
1035 EOF
1036 }
1037
1038 check_cflags(){
1039     log check_cflags "$@"
1040     test_cflags "$@" && add_cflags "$@"
1041 }
1042
1043 check_cxxflags(){
1044     log check_cxxflags "$@"
1045     set -- $($cflags_filter "$@")
1046     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1047 int x;
1048 EOF
1049 }
1050
1051 test_objcflags(){
1052     log test_objcflags "$@"
1053     set -- $($objcflags_filter "$@")
1054     check_objcc "$@" <<EOF
1055 int x;
1056 EOF
1057 }
1058
1059 check_objcflags(){
1060     log check_objcflags "$@"
1061     test_objcflags "$@" && add_objcflags "$@"
1062 }
1063
1064 test_ldflags(){
1065     log test_ldflags "$@"
1066     check_ld "cc" "$@" <<EOF
1067 int main(void){ return 0; }
1068 EOF
1069 }
1070
1071 check_ldflags(){
1072     log check_ldflags "$@"
1073     test_ldflags "$@" && add_ldflags "$@"
1074 }
1075
1076 test_stripflags(){
1077     log test_stripflags "$@"
1078     # call check_cc to get a fresh TMPO
1079     check_cc <<EOF
1080 int main(void) { return 0; }
1081 EOF
1082     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1083 }
1084
1085 check_stripflags(){
1086     log check_stripflags "$@"
1087     test_stripflags "$@" && add_stripflags "$@"
1088 }
1089
1090 check_header(){
1091     log check_header "$@"
1092     header=$1
1093     shift
1094     disable_safe $header
1095     check_cpp "$@" <<EOF && enable_safe $header
1096 #include <$header>
1097 int x;
1098 EOF
1099 }
1100
1101 check_header_objcc(){
1102     log check_header_objcc "$@"
1103     rm -f -- "$TMPO"
1104     header=$1
1105     shift
1106     disable_safe $header
1107     {
1108        echo "#include <$header>"
1109        echo "int main(void) { return 0; }"
1110     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1111 }
1112
1113 check_func(){
1114     log check_func "$@"
1115     func=$1
1116     shift
1117     disable $func
1118     check_ld "cc" "$@" <<EOF && enable $func
1119 extern int $func();
1120 int main(void){ $func(); }
1121 EOF
1122 }
1123
1124 check_complexfunc(){
1125     log check_complexfunc "$@"
1126     func=$1
1127     narg=$2
1128     shift 2
1129     test $narg = 2 && args="f, g" || args="f * I"
1130     disable $func
1131     check_ld "cc" "$@" <<EOF && enable $func
1132 #include <complex.h>
1133 #include <math.h>
1134 float foo(complex float f, complex float g) { return $func($args); }
1135 int main(void){ return (int) foo; }
1136 EOF
1137 }
1138
1139 check_mathfunc(){
1140     log check_mathfunc "$@"
1141     func=$1
1142     narg=$2
1143     shift 2
1144     test $narg = 2 && args="f, g" || args="f"
1145     disable $func
1146     check_ld "cc" "$@" <<EOF && enable $func
1147 #include <math.h>
1148 float foo(float f, float g) { return $func($args); }
1149 int main(void){ return (int) foo; }
1150 EOF
1151 }
1152
1153 check_func_headers(){
1154     log check_func_headers "$@"
1155     headers=$1
1156     funcs=$2
1157     shift 2
1158     {
1159         for hdr in $headers; do
1160             print_include $hdr
1161         done
1162         echo "#include <stdint.h>"
1163         for func in $funcs; do
1164             echo "long check_$func(void) { return (long) $func; }"
1165         done
1166         echo "int main(void) { int ret = 0;"
1167         # LTO could optimize out the test functions without this
1168         for func in $funcs; do
1169             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1170         done
1171         echo "return ret; }"
1172     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1173 }
1174
1175 check_class_headers_cpp(){
1176     log check_class_headers_cpp "$@"
1177     headers=$1
1178     classes=$2
1179     shift 2
1180     {
1181         for hdr in $headers; do
1182             echo "#include <$hdr>"
1183         done
1184         echo "int main(void) { "
1185         i=1
1186         for class in $classes; do
1187             echo "$class obj$i;"
1188             i=$(expr $i + 1)
1189         done
1190         echo "return 0; }"
1191     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1192 }
1193
1194 check_cpp_condition(){
1195     log check_cpp_condition "$@"
1196     header=$1
1197     condition=$2
1198     shift 2
1199     check_cpp "$@" <<EOF
1200 #include <$header>
1201 #if !($condition)
1202 #error "unsatisfied condition: $condition"
1203 #endif
1204 EOF
1205 }
1206
1207 test_cflags_cc(){
1208     log test_cflags_cc "$@"
1209     flags=$1
1210     header=$2
1211     condition=$3
1212     shift 3
1213     set -- $($cflags_filter "$flags")
1214     check_cc "$@" <<EOF
1215 #include <$header>
1216 #if !($condition)
1217 #error "unsatisfied condition: $condition"
1218 #endif
1219 EOF
1220 }
1221
1222 check_lib(){
1223     log check_lib "$@"
1224     headers="$1"
1225     funcs="$2"
1226     shift 2
1227     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1228 }
1229
1230 check_lib_cpp(){
1231     log check_lib_cpp "$@"
1232     headers="$1"
1233     classes="$2"
1234     shift 2
1235     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1236 }
1237
1238 check_pkg_config(){
1239     log check_pkg_config "$@"
1240     pkg_version="$1"
1241     pkg="${1%% *}"
1242     headers="$2"
1243     funcs="$3"
1244     shift 3
1245     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1246     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1247     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1248     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1249         set_safe "${pkg}_cflags" $pkg_cflags   &&
1250         set_safe "${pkg}_libs"   $pkg_libs
1251 }
1252
1253 check_exec(){
1254     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1255 }
1256
1257 check_exec_crash(){
1258     log check_exec_crash "$@"
1259     code=$(cat)
1260
1261     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1262     # are safe but may not be available everywhere.  Thus we use
1263     # raise(SIGTERM) instead.  The check is run in a subshell so we
1264     # can redirect the "Terminated" message from the shell.  SIGBUS
1265     # is not defined by standard C so it is used conditionally.
1266
1267     (check_exec "$@") >> $logfile 2>&1 <<EOF
1268 #include <signal.h>
1269 static void sighandler(int sig){
1270     raise(SIGTERM);
1271 }
1272 int foo(void){
1273     $code
1274 }
1275 int (*func_ptr)(void) = foo;
1276 int main(void){
1277     signal(SIGILL, sighandler);
1278     signal(SIGFPE, sighandler);
1279     signal(SIGSEGV, sighandler);
1280 #ifdef SIGBUS
1281     signal(SIGBUS, sighandler);
1282 #endif
1283     return func_ptr();
1284 }
1285 EOF
1286 }
1287
1288 check_type(){
1289     log check_type "$@"
1290     headers=$1
1291     type=$2
1292     shift 2
1293     disable_safe "$type"
1294     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1295 }
1296
1297 check_struct(){
1298     log check_struct "$@"
1299     headers=$1
1300     struct=$2
1301     member=$3
1302     shift 3
1303     disable_safe "${struct}_${member}"
1304     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1305         enable_safe "${struct}_${member}"
1306 }
1307
1308 check_builtin(){
1309     log check_builtin "$@"
1310     name=$1
1311     headers=$2
1312     builtin=$3
1313     shift 3
1314     disable "$name"
1315     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1316 }
1317
1318 check_compile_assert(){
1319     log check_compile_assert "$@"
1320     name=$1
1321     headers=$2
1322     condition=$3
1323     shift 3
1324     disable "$name"
1325     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1326 }
1327
1328 require(){
1329     log require "$@"
1330     name_version="$1"
1331     headers="$2"
1332     func="$3"
1333     shift 3
1334     check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1335 }
1336
1337 require_cpp(){
1338     name="$1"
1339     headers="$2"
1340     classes="$3"
1341     shift 3
1342     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1343 }
1344
1345 use_pkg_config(){
1346     log use_pkg_config "$@"
1347     pkg="$1"
1348     check_pkg_config "$@" || return 1
1349     add_cflags    $(get_safe "${pkg}_cflags")
1350     add_extralibs $(get_safe "${pkg}_libs")
1351 }
1352
1353 require_pkg_config(){
1354     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1355 }
1356
1357 require_libfreetype(){
1358     log require_libfreetype "$@"
1359     pkg="freetype2"
1360     check_cmd $pkg_config --exists --print-errors $pkg \
1361       || die "ERROR: $pkg not found"
1362     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1363     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1364     {
1365         echo "#include <ft2build.h>"
1366         echo "#include FT_FREETYPE_H"
1367         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1368         echo "int main(void) { return 0; }"
1369     } | check_ld "cc" $pkg_cflags $pkg_libs \
1370       && set_safe "${pkg}_cflags" $pkg_cflags \
1371       && set_safe "${pkg}_libs"   $pkg_libs \
1372       || die "ERROR: $pkg not found"
1373     add_cflags    $(get_safe "${pkg}_cflags")
1374     add_extralibs $(get_safe "${pkg}_libs")
1375 }
1376
1377 hostcc_e(){
1378     eval printf '%s\\n' $HOSTCC_E
1379 }
1380
1381 hostcc_o(){
1382     eval printf '%s\\n' $HOSTCC_O
1383 }
1384
1385 check_host_cc(){
1386     log check_host_cc "$@"
1387     cat > $TMPC
1388     log_file $TMPC
1389     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1390 }
1391
1392 check_host_cpp(){
1393     log check_host_cpp "$@"
1394     cat > $TMPC
1395     log_file $TMPC
1396     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1397 }
1398
1399 check_host_cppflags(){
1400     log check_host_cppflags "$@"
1401     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1402 int x;
1403 EOF
1404 }
1405
1406 check_host_cflags(){
1407     log check_host_cflags "$@"
1408     set -- $($host_cflags_filter "$@")
1409     check_host_cc "$@" <<EOF && append host_cflags "$@"
1410 int x;
1411 EOF
1412 }
1413
1414 check_host_cpp_condition(){
1415     log check_host_cpp_condition "$@"
1416     header=$1
1417     condition=$2
1418     shift 2
1419     check_host_cpp "$@" <<EOF
1420 #include <$header>
1421 #if !($condition)
1422 #error "unsatisfied condition: $condition"
1423 #endif
1424 EOF
1425 }
1426
1427 cp_if_changed(){
1428     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1429     mkdir -p "$(dirname $2)"
1430     cp -f "$1" "$2"
1431 }
1432
1433 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1434 # system-dependent things.
1435
1436 AVCODEC_COMPONENTS="
1437     bsfs
1438     decoders
1439     encoders
1440     hwaccels
1441     parsers
1442 "
1443
1444 AVDEVICE_COMPONENTS="
1445     indevs
1446     outdevs
1447 "
1448 AVFILTER_COMPONENTS="
1449     filters
1450 "
1451 AVFORMAT_COMPONENTS="
1452     demuxers
1453     muxers
1454     protocols
1455 "
1456
1457 AVRESAMPLE_COMPONENTS=""
1458 AVUTIL_COMPONENTS=""
1459
1460 COMPONENT_LIST="
1461     $AVCODEC_COMPONENTS
1462     $AVDEVICE_COMPONENTS
1463     $AVFILTER_COMPONENTS
1464     $AVFORMAT_COMPONENTS
1465     $AVRESAMPLE_COMPONENTS
1466     $AVUTIL_COMPONENTS
1467 "
1468
1469 EXAMPLE_LIST="
1470     avio_dir_cmd_example
1471     avio_reading_example
1472     decode_audio_example
1473     decode_video_example
1474     demuxing_decoding_example
1475     encode_audio_example
1476     encode_video_example
1477     extract_mvs_example
1478     filter_audio_example
1479     filtering_audio_example
1480     filtering_video_example
1481     http_multiclient_example
1482     metadata_example
1483     muxing_example
1484     qsvdec_example
1485     remuxing_example
1486     resampling_audio_example
1487     scaling_video_example
1488     transcode_aac_example
1489     transcoding_example
1490 "
1491 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1492     bzlib
1493     iconv
1494     libxcb
1495     libxcb_shm
1496     libxcb_shape
1497     libxcb_xfixes
1498     lzma
1499     schannel
1500     sdl
1501     sdl2
1502     securetransport
1503     xlib
1504     zlib
1505 "
1506
1507 EXTERNAL_LIBRARY_GPL_LIST="
1508     avisynth
1509     frei0r
1510     libcdio
1511     librubberband
1512     libvidstab
1513     libx264
1514     libx265
1515     libxavs
1516     libxvid
1517 "
1518
1519 EXTERNAL_LIBRARY_NONFREE_LIST="
1520     decklink
1521     libfdk_aac
1522     openssl
1523 "
1524
1525 EXTERNAL_LIBRARY_VERSION3_LIST="
1526     gmp
1527     libopencore_amrnb
1528     libopencore_amrwb
1529     libvo_amrwbenc
1530 "
1531
1532 EXTERNAL_LIBRARY_GPLV3_LIST="
1533     libsmbclient
1534 "
1535
1536 EXTERNAL_LIBRARY_LIST="
1537     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1538     $EXTERNAL_LIBRARY_GPL_LIST
1539     $EXTERNAL_LIBRARY_NONFREE_LIST
1540     $EXTERNAL_LIBRARY_VERSION3_LIST
1541     $EXTERNAL_LIBRARY_GPLV3_LIST
1542     chromaprint
1543     crystalhd
1544     gcrypt
1545     gnutls
1546     jni
1547     ladspa
1548     libass
1549     libbluray
1550     libbs2b
1551     libcaca
1552     libcelt
1553     libdc1394
1554     libflite
1555     libfontconfig
1556     libfreetype
1557     libfribidi
1558     libgme
1559     libgsm
1560     libiec61883
1561     libilbc
1562     libkvazaar
1563     libmodplug
1564     libmp3lame
1565     libnut
1566     libopencv
1567     libopenh264
1568     libopenjpeg
1569     libopenmpt
1570     libopus
1571     libpulse
1572     librtmp
1573     libschroedinger
1574     libshine
1575     libsmbclient
1576     libsnappy
1577     libsoxr
1578     libspeex
1579     libssh
1580     libtesseract
1581     libtheora
1582     libtwolame
1583     libv4l2
1584     libvorbis
1585     libvpx
1586     libwavpack
1587     libwebp
1588     libzimg
1589     libzmq
1590     libzvbi
1591     mediacodec
1592     netcdf
1593     openal
1594     opencl
1595     opengl
1596     videotoolbox
1597 "
1598 HWACCEL_AUTODETECT_LIBRARY_LIST="
1599     audiotoolbox
1600     cuda
1601     cuvid
1602     d3d11va
1603     dxva2
1604     nvenc
1605     vaapi
1606     vda
1607     vdpau
1608     videotoolbox_hwaccel
1609     xvmc
1610 "
1611
1612 HWACCEL_LIBRARY_NONFREE_LIST="
1613     libnpp
1614 "
1615
1616 HWACCEL_LIBRARY_LIST="
1617     $HWACCEL_AUTODETECT_LIBRARY_LIST
1618     $HWACCEL_LIBRARY_NONFREE_LIST
1619     libmfx
1620     mmal
1621     omx
1622 "
1623
1624 DOCUMENT_LIST="
1625     doc
1626     htmlpages
1627     manpages
1628     podpages
1629     txtpages
1630 "
1631
1632 FEATURE_LIST="
1633     ftrapv
1634     gray
1635     hardcoded_tables
1636     omx_rpi
1637     runtime_cpudetect
1638     safe_bitstream_reader
1639     shared
1640     small
1641     static
1642     swscale_alpha
1643 "
1644
1645 LIBRARY_LIST="
1646     avcodec
1647     avdevice
1648     avfilter
1649     avformat
1650     avresample
1651     avutil
1652     postproc
1653     swresample
1654     swscale
1655 "
1656
1657 LICENSE_LIST="
1658     gpl
1659     nonfree
1660     version3
1661 "
1662
1663 PROGRAM_LIST="
1664     ffplay
1665     ffprobe
1666     ffserver
1667     ffmpeg
1668 "
1669
1670 SUBSYSTEM_LIST="
1671     dct
1672     dwt
1673     error_resilience
1674     faan
1675     fast_unaligned
1676     fft
1677     lsp
1678     lzo
1679     mdct
1680     pixelutils
1681     network
1682     rdft
1683 "
1684
1685 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1686 CONFIG_LIST="
1687     $DOCUMENT_LIST
1688     $EXAMPLE_LIST
1689     $EXTERNAL_LIBRARY_LIST
1690     $HWACCEL_LIBRARY_LIST
1691     $FEATURE_LIST
1692     $LICENSE_LIST
1693     $LIBRARY_LIST
1694     $PROGRAM_LIST
1695     $SUBSYSTEM_LIST
1696     fontconfig
1697     memory_poisoning
1698     neon_clobber_test
1699     pic
1700     raise_major
1701     thumb
1702     valgrind_backtrace
1703     xmm_clobber_test
1704     $COMPONENT_LIST
1705 "
1706
1707 THREADS_LIST="
1708     pthreads
1709     os2threads
1710     w32threads
1711 "
1712
1713 ATOMICS_LIST="
1714     atomics_gcc
1715     atomics_suncc
1716     atomics_win32
1717 "
1718
1719 AUTODETECT_LIBS="
1720     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1721     $HWACCEL_AUTODETECT_LIBRARY_LIST
1722     $THREADS_LIST
1723 "
1724
1725 ARCH_LIST="
1726     aarch64
1727     alpha
1728     arm
1729     avr32
1730     avr32_ap
1731     avr32_uc
1732     bfin
1733     ia64
1734     m68k
1735     mips
1736     mips64
1737     parisc
1738     ppc
1739     ppc64
1740     s390
1741     sh4
1742     sparc
1743     sparc64
1744     tilegx
1745     tilepro
1746     tomi
1747     x86
1748     x86_32
1749     x86_64
1750 "
1751
1752 ARCH_EXT_LIST_ARM="
1753     armv5te
1754     armv6
1755     armv6t2
1756     armv8
1757     neon
1758     vfp
1759     vfpv3
1760     setend
1761 "
1762
1763 ARCH_EXT_LIST_MIPS="
1764     mipsfpu
1765     mips32r2
1766     mips32r5
1767     mips64r2
1768     mips32r6
1769     mips64r6
1770     mipsdsp
1771     mipsdspr2
1772     msa
1773 "
1774
1775 ARCH_EXT_LIST_LOONGSON="
1776     loongson2
1777     loongson3
1778     mmi
1779 "
1780
1781 ARCH_EXT_LIST_X86_SIMD="
1782     aesni
1783     amd3dnow
1784     amd3dnowext
1785     avx
1786     avx2
1787     fma3
1788     fma4
1789     mmx
1790     mmxext
1791     sse
1792     sse2
1793     sse3
1794     sse4
1795     sse42
1796     ssse3
1797     xop
1798 "
1799
1800 ARCH_EXT_LIST_PPC="
1801     altivec
1802     dcbzl
1803     ldbrx
1804     power8
1805     ppc4xx
1806     vsx
1807 "
1808
1809 ARCH_EXT_LIST_X86="
1810     $ARCH_EXT_LIST_X86_SIMD
1811     cpunop
1812     i686
1813 "
1814
1815 ARCH_EXT_LIST="
1816     $ARCH_EXT_LIST_ARM
1817     $ARCH_EXT_LIST_PPC
1818     $ARCH_EXT_LIST_X86
1819     $ARCH_EXT_LIST_MIPS
1820     $ARCH_EXT_LIST_LOONGSON
1821 "
1822
1823 ARCH_FEATURES="
1824     aligned_stack
1825     fast_64bit
1826     fast_clz
1827     fast_cmov
1828     local_aligned_8
1829     local_aligned_16
1830     local_aligned_32
1831     simd_align_16
1832     simd_align_32
1833 "
1834
1835 BUILTIN_LIST="
1836     atomic_cas_ptr
1837     machine_rw_barrier
1838     MemoryBarrier
1839     mm_empty
1840     rdtsc
1841     sarestart
1842     sem_timedwait
1843     sync_val_compare_and_swap
1844 "
1845 HAVE_LIST_CMDLINE="
1846     inline_asm
1847     symver
1848     yasm
1849 "
1850
1851 HAVE_LIST_PUB="
1852     bigendian
1853     fast_unaligned
1854 "
1855
1856 HEADERS_LIST="
1857     alsa_asoundlib_h
1858     altivec_h
1859     arpa_inet_h
1860     asm_types_h
1861     cdio_paranoia_h
1862     cdio_paranoia_paranoia_h
1863     cuda_h
1864     dispatch_dispatch_h
1865     dev_bktr_ioctl_bt848_h
1866     dev_bktr_ioctl_meteor_h
1867     dev_ic_bt8xx_h
1868     dev_video_bktr_ioctl_bt848_h
1869     dev_video_meteor_ioctl_meteor_h
1870     direct_h
1871     dirent_h
1872     dlfcn_h
1873     d3d11_h
1874     dxva_h
1875     ES2_gl_h
1876     gsm_h
1877     io_h
1878     mach_mach_time_h
1879     machine_ioctl_bt848_h
1880     machine_ioctl_meteor_h
1881     malloc_h
1882     opencv2_core_core_c_h
1883     openjpeg_2_1_openjpeg_h
1884     openjpeg_2_0_openjpeg_h
1885     openjpeg_1_5_openjpeg_h
1886     OpenGL_gl3_h
1887     poll_h
1888     sndio_h
1889     soundcard_h
1890     stdatomic_h
1891     sys_mman_h
1892     sys_param_h
1893     sys_resource_h
1894     sys_select_h
1895     sys_soundcard_h
1896     sys_time_h
1897     sys_un_h
1898     sys_videoio_h
1899     termios_h
1900     udplite_h
1901     unistd_h
1902     valgrind_valgrind_h
1903     windows_h
1904     winsock2_h
1905 "
1906
1907 INTRINSICS_LIST="
1908     intrinsics_neon
1909 "
1910
1911 COMPLEX_FUNCS="
1912     cabs
1913     cexp
1914 "
1915
1916 MATH_FUNCS="
1917     atanf
1918     atan2f
1919     cbrt
1920     cbrtf
1921     copysign
1922     cosf
1923     erf
1924     exp2
1925     exp2f
1926     expf
1927     hypot
1928     isfinite
1929     isinf
1930     isnan
1931     ldexpf
1932     llrint
1933     llrintf
1934     log2
1935     log2f
1936     log10f
1937     lrint
1938     lrintf
1939     powf
1940     rint
1941     round
1942     roundf
1943     sinf
1944     trunc
1945     truncf
1946 "
1947
1948 SYSTEM_FUNCS="
1949     access
1950     aligned_malloc
1951     arc4random
1952     clock_gettime
1953     closesocket
1954     CommandLineToArgvW
1955     CoTaskMemFree
1956     CryptGenRandom
1957     dlopen
1958     fcntl
1959     flt_lim
1960     fork
1961     getaddrinfo
1962     gethrtime
1963     getopt
1964     GetProcessAffinityMask
1965     GetProcessMemoryInfo
1966     GetProcessTimes
1967     getrusage
1968     GetSystemTimeAsFileTime
1969     gettimeofday
1970     glob
1971     glXGetProcAddress
1972     gmtime_r
1973     inet_aton
1974     isatty
1975     jack_port_get_latency_range
1976     kbhit
1977     LoadLibrary
1978     localtime_r
1979     lstat
1980     lzo1x_999_compress
1981     mach_absolute_time
1982     MapViewOfFile
1983     memalign
1984     mkstemp
1985     mmap
1986     mprotect
1987     nanosleep
1988     PeekNamedPipe
1989     posix_memalign
1990     pthread_cancel
1991     sched_getaffinity
1992     SetConsoleTextAttribute
1993     SetConsoleCtrlHandler
1994     setmode
1995     setrlimit
1996     Sleep
1997     strerror_r
1998     sysconf
1999     sysctl
2000     usleep
2001     UTGetOSTypeFromString
2002     VirtualAlloc
2003     wglGetProcAddress
2004 "
2005
2006 TOOLCHAIN_FEATURES="
2007     as_dn_directive
2008     as_fpu_directive
2009     as_func
2010     as_object_arch
2011     asm_mod_q
2012     attribute_may_alias
2013     attribute_packed
2014     ebp_available
2015     ebx_available
2016     gnu_as
2017     gnu_windres
2018     ibm_asm
2019     inline_asm_direct_symbol_refs
2020     inline_asm_labels
2021     inline_asm_nonlocal_labels
2022     pragma_deprecated
2023     rsync_contimeout
2024     symver_asm_label
2025     symver_gnu_asm
2026     vfp_args
2027     xform_asm
2028     xmm_clobbers
2029 "
2030
2031 TYPES_LIST="
2032     CONDITION_VARIABLE_Ptr
2033     socklen_t
2034     struct_addrinfo
2035     struct_group_source_req
2036     struct_ip_mreq_source
2037     struct_ipv6_mreq
2038     struct_msghdr_msg_flags
2039     struct_pollfd
2040     struct_rusage_ru_maxrss
2041     struct_sctp_event_subscribe
2042     struct_sockaddr_in6
2043     struct_sockaddr_sa_len
2044     struct_sockaddr_storage
2045     struct_stat_st_mtim_tv_nsec
2046     struct_v4l2_frmivalenum_discrete
2047 "
2048
2049 HAVE_LIST="
2050     $ARCH_EXT_LIST
2051     $(add_suffix _external $ARCH_EXT_LIST)
2052     $(add_suffix _inline   $ARCH_EXT_LIST)
2053     $ARCH_FEATURES
2054     $ATOMICS_LIST
2055     $BUILTIN_LIST
2056     $COMPLEX_FUNCS
2057     $HAVE_LIST_CMDLINE
2058     $HAVE_LIST_PUB
2059     $HEADERS_LIST
2060     $INTRINSICS_LIST
2061     $MATH_FUNCS
2062     $SYSTEM_FUNCS
2063     $THREADS_LIST
2064     $TOOLCHAIN_FEATURES
2065     $TYPES_LIST
2066     atomics_native
2067     dos_paths
2068     dxva2_lib
2069     dxva2api_cobj
2070     libc_msvcrt
2071     makeinfo
2072     makeinfo_html
2073     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2074     perl
2075     pod2man
2076     sdl2
2077     section_data_rel_ro
2078     texi2html
2079     threads
2080     vaapi_drm
2081     vaapi_x11
2082     vdpau_x11
2083     winrt
2084 "
2085
2086 # options emitted with CONFIG_ prefix but not available on the command line
2087 CONFIG_EXTRA="
2088     aandcttables
2089     ac3dsp
2090     audio_frame_queue
2091     audiodsp
2092     blockdsp
2093     bswapdsp
2094     cabac
2095     dirac_parse
2096     dvprofile
2097     exif
2098     faandct
2099     faanidct
2100     fdctdsp
2101     flacdsp
2102     fmtconvert
2103     frame_thread_encoder
2104     g722dsp
2105     golomb
2106     gplv3
2107     h263dsp
2108     h264chroma
2109     h264dsp
2110     h264parse
2111     h264pred
2112     h264qpel
2113     hevcparse
2114     hpeldsp
2115     huffman
2116     huffyuvdsp
2117     huffyuvencdsp
2118     idctdsp
2119     iirfilter
2120     mdct15
2121     intrax8
2122     iso_media
2123     ividsp
2124     jpegtables
2125     lgplv3
2126     libx262
2127     llauddsp
2128     llviddsp
2129     llvidencdsp
2130     lpc
2131     lzf
2132     me_cmp
2133     mpeg_er
2134     mpegaudio
2135     mpegaudiodsp
2136     mpegaudioheader
2137     mpegvideo
2138     mpegvideoenc
2139     mss34dsp
2140     pixblockdsp
2141     qpeldsp
2142     qsv
2143     qsvdec
2144     qsvenc
2145     rangecoder
2146     riffdec
2147     riffenc
2148     rtpdec
2149     rtpenc_chain
2150     rv34dsp
2151     sinewin
2152     snappy
2153     srtp
2154     startcode
2155     texturedsp
2156     texturedspenc
2157     tpeldsp
2158     vaapi_encode
2159     vc1dsp
2160     videodsp
2161     vp3dsp
2162     vp56dsp
2163     vp8dsp
2164     vt_bt2020
2165     wma_freqs
2166     wmv2dsp
2167 "
2168
2169 CMDLINE_SELECT="
2170     $ARCH_EXT_LIST
2171     $CONFIG_LIST
2172     $HAVE_LIST_CMDLINE
2173     $THREADS_LIST
2174     asm
2175     cross_compile
2176     debug
2177     extra_warnings
2178     logging
2179     lto
2180     optimizations
2181     rpath
2182     stripping
2183 "
2184
2185 PATHS_LIST="
2186     bindir
2187     datadir
2188     docdir
2189     incdir
2190     libdir
2191     mandir
2192     pkgconfigdir
2193     prefix
2194     shlibdir
2195     install_name_dir
2196 "
2197
2198 CMDLINE_SET="
2199     $PATHS_LIST
2200     ar
2201     arch
2202     as
2203     assert_level
2204     build_suffix
2205     cc
2206     objcc
2207     cpu
2208     cross_prefix
2209     custom_allocator
2210     cxx
2211     dep_cc
2212     doxygen
2213     env
2214     extra_version
2215     gas
2216     host_cc
2217     host_cflags
2218     host_ld
2219     host_ldflags
2220     host_libs
2221     host_os
2222     install
2223     ld
2224     ln_s
2225     logfile
2226     malloc_prefix
2227     nm
2228     optflags
2229     pkg_config
2230     pkg_config_flags
2231     progs_suffix
2232     random_seed
2233     ranlib
2234     samples
2235     strip
2236     sws_max_filter_size
2237     sysinclude
2238     sysroot
2239     target_exec
2240     target_os
2241     target_path
2242     target_samples
2243     tempprefix
2244     toolchain
2245     valgrind
2246     yasmexe
2247 "
2248
2249 CMDLINE_APPEND="
2250     extra_cflags
2251     extra_cxxflags
2252     extra_objcflags
2253     host_cppflags
2254 "
2255
2256 # code dependency declarations
2257
2258 # architecture extensions
2259
2260 armv5te_deps="arm"
2261 armv6_deps="arm"
2262 armv6t2_deps="arm"
2263 armv8_deps="aarch64"
2264 neon_deps_any="aarch64 arm"
2265 intrinsics_neon_deps="neon"
2266 vfp_deps_any="aarch64 arm"
2267 vfpv3_deps="vfp"
2268 setend_deps="arm"
2269
2270 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2271
2272 loongson2_deps="mips"
2273 loongson3_deps="mips"
2274 mipsfpu_deps="mips"
2275 mipsdsp_deps="mips"
2276 mipsdspr2_deps="mips"
2277 mips32r2_deps="mips"
2278 mips32r5_deps="mips"
2279 mips32r6_deps="mips"
2280 mips64r2_deps="mips"
2281 mips64r6_deps="mips"
2282 msa_deps="mipsfpu"
2283 mmi_deps="mips"
2284
2285 altivec_deps="ppc"
2286 dcbzl_deps="ppc"
2287 ldbrx_deps="ppc"
2288 ppc4xx_deps="ppc"
2289 vsx_deps="altivec"
2290 power8_deps="vsx"
2291
2292 cpunop_deps="i686"
2293 x86_64_select="i686"
2294 x86_64_suggest="fast_cmov"
2295
2296 amd3dnow_deps="mmx"
2297 amd3dnowext_deps="amd3dnow"
2298 i686_deps="x86"
2299 mmx_deps="x86"
2300 mmxext_deps="mmx"
2301 sse_deps="mmxext"
2302 sse2_deps="sse"
2303 sse3_deps="sse2"
2304 ssse3_deps="sse3"
2305 sse4_deps="ssse3"
2306 sse42_deps="sse4"
2307 aesni_deps="sse42"
2308 avx_deps="sse42"
2309 xop_deps="avx"
2310 fma3_deps="avx"
2311 fma4_deps="avx"
2312 avx2_deps="avx"
2313
2314 mmx_external_deps="yasm"
2315 mmx_inline_deps="inline_asm"
2316 mmx_suggest="mmx_external mmx_inline"
2317
2318 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2319     eval dep=\$${ext}_deps
2320     eval ${ext}_external_deps='"${dep}_external"'
2321     eval ${ext}_inline_deps='"${dep}_inline"'
2322     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2323 done
2324
2325 aligned_stack_if_any="aarch64 ppc x86"
2326 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2327 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2328 fast_unaligned_if_any="aarch64 ppc x86"
2329 simd_align_16_if_any="altivec neon sse"
2330 simd_align_32_if_any="avx"
2331
2332 # system capabilities
2333 symver_if_any="symver_asm_label symver_gnu_asm"
2334 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2335
2336 # threading support
2337 atomics_gcc_if="sync_val_compare_and_swap"
2338 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2339 atomics_win32_if="MemoryBarrier"
2340 atomics_native_if_any="$ATOMICS_LIST"
2341 w32threads_deps="atomics_native"
2342 threads_if_any="$THREADS_LIST"
2343
2344 # subsystems
2345 dct_select="rdft"
2346 dirac_parse_select="golomb"
2347 error_resilience_select="me_cmp"
2348 faandct_deps="faan fdctdsp"
2349 faanidct_deps="faan idctdsp"
2350 h264dsp_select="startcode"
2351 frame_thread_encoder_deps="encoders threads"
2352 intrax8_select="blockdsp idctdsp"
2353 mdct_select="fft"
2354 mdct15_select="fft"
2355 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2356 mpeg_er_select="error_resilience"
2357 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2358 mpegaudiodsp_select="dct"
2359 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2360 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2361 vc1dsp_select="h264chroma qpeldsp startcode"
2362 rdft_select="fft"
2363
2364 # decoders / encoders
2365 aac_decoder_select="mdct15 mdct sinewin"
2366 aac_fixed_decoder_select="mdct sinewin"
2367 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2368 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2369 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2370 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2371 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2372 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2373 adpcm_g722_decoder_select="g722dsp"
2374 adpcm_g722_encoder_select="g722dsp"
2375 aic_decoder_select="golomb idctdsp"
2376 alac_encoder_select="lpc"
2377 als_decoder_select="bswapdsp"
2378 amrnb_decoder_select="lsp"
2379 amrwb_decoder_select="lsp"
2380 amv_decoder_select="sp5x_decoder exif"
2381 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2382 ape_decoder_select="bswapdsp llauddsp"
2383 apng_decoder_select="zlib"
2384 apng_encoder_select="llvidencdsp zlib"
2385 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2386 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2387 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2388 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2389 atrac1_decoder_select="mdct sinewin"
2390 atrac3_decoder_select="mdct"
2391 atrac3p_decoder_select="mdct sinewin"
2392 avrn_decoder_select="exif jpegtables"
2393 bink_decoder_select="blockdsp hpeldsp"
2394 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2395 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2396 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2397 cllc_decoder_select="bswapdsp"
2398 comfortnoise_encoder_select="lpc"
2399 cook_decoder_select="audiodsp mdct sinewin"
2400 cscd_decoder_select="lzo"
2401 cscd_decoder_suggest="zlib"
2402 dca_decoder_select="mdct"
2403 dds_decoder_select="texturedsp"
2404 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2405 dnxhd_decoder_select="blockdsp idctdsp"
2406 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2407 dvvideo_decoder_select="dvprofile idctdsp"
2408 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2409 dxa_decoder_select="zlib"
2410 dxv_decoder_select="lzf texturedsp"
2411 eac3_decoder_select="ac3_decoder"
2412 eac3_encoder_select="ac3_encoder"
2413 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2414 eatgq_decoder_select="aandcttables"
2415 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2416 exr_decoder_select="zlib"
2417 ffv1_decoder_select="golomb rangecoder"
2418 ffv1_encoder_select="rangecoder"
2419 ffvhuff_decoder_select="huffyuv_decoder"
2420 ffvhuff_encoder_select="huffyuv_encoder"
2421 fic_decoder_select="golomb"
2422 flac_decoder_select="flacdsp golomb"
2423 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2424 flashsv2_decoder_select="zlib"
2425 flashsv2_encoder_select="zlib"
2426 flashsv_decoder_select="zlib"
2427 flashsv_encoder_select="zlib"
2428 flv_decoder_select="h263_decoder"
2429 flv_encoder_select="h263_encoder"
2430 fourxm_decoder_select="blockdsp bswapdsp"
2431 fraps_decoder_select="bswapdsp huffman"
2432 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2433 g729_decoder_select="audiodsp"
2434 h261_decoder_select="mpegvideo"
2435 h261_encoder_select="aandcttables mpegvideoenc"
2436 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2437 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2438 h263i_decoder_select="h263_decoder"
2439 h263p_decoder_select="h263_decoder"
2440 h263p_encoder_select="h263_encoder"
2441 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2442 h264_decoder_suggest="error_resilience"
2443 hap_decoder_select="snappy texturedsp"
2444 hap_encoder_deps="libsnappy"
2445 hap_encoder_select="texturedspenc"
2446 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2447 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2448 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2449 iac_decoder_select="imc_decoder"
2450 imc_decoder_select="bswapdsp fft mdct sinewin"
2451 indeo3_decoder_select="hpeldsp"
2452 indeo4_decoder_select="ividsp"
2453 indeo5_decoder_select="ividsp"
2454 interplay_video_decoder_select="hpeldsp"
2455 jpegls_decoder_select="golomb mjpeg_decoder"
2456 jpegls_encoder_select="golomb"
2457 jv_decoder_select="blockdsp"
2458 lagarith_decoder_select="llviddsp"
2459 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2460 loco_decoder_select="golomb"
2461 magicyuv_decoder_select="llviddsp"
2462 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2463 metasound_decoder_select="lsp mdct sinewin"
2464 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2465 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2466 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2467 mjpegb_decoder_select="mjpeg_decoder"
2468 mlp_decoder_select="mlp_parser"
2469 motionpixels_decoder_select="bswapdsp"
2470 mp1_decoder_select="mpegaudio"
2471 mp1float_decoder_select="mpegaudio"
2472 mp2_decoder_select="mpegaudio"
2473 mp2float_decoder_select="mpegaudio"
2474 mp3_decoder_select="mpegaudio"
2475 mp3adu_decoder_select="mpegaudio"
2476 mp3adufloat_decoder_select="mpegaudio"
2477 mp3float_decoder_select="mpegaudio"
2478 mp3on4_decoder_select="mpegaudio"
2479 mp3on4float_decoder_select="mpegaudio"
2480 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2481 mpc8_decoder_select="mpegaudiodsp"
2482 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2483 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2484 mpegvideo_decoder_select="mpegvideo"
2485 mpeg1video_decoder_select="mpegvideo"
2486 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2487 mpeg2video_decoder_select="mpegvideo"
2488 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2489 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2490 mpeg4_encoder_select="h263_encoder"
2491 msa1_decoder_select="mss34dsp"
2492 msmpeg4v1_decoder_select="h263_decoder"
2493 msmpeg4v2_decoder_select="h263_decoder"
2494 msmpeg4v2_encoder_select="h263_encoder"
2495 msmpeg4v3_decoder_select="h263_decoder"
2496 msmpeg4v3_encoder_select="h263_encoder"
2497 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2498 mts2_decoder_select="mss34dsp"
2499 mxpeg_decoder_select="mjpeg_decoder"
2500 nellymoser_decoder_select="mdct sinewin"
2501 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2502 nuv_decoder_select="idctdsp lzo"
2503 on2avc_decoder_select="mdct"
2504 opus_decoder_deps="swresample"
2505 opus_decoder_select="mdct15"
2506 opus_encoder_select="audio_frame_queue mdct15"
2507 png_decoder_select="zlib"
2508 png_encoder_select="llvidencdsp zlib"
2509 prores_decoder_select="blockdsp idctdsp"
2510 prores_encoder_select="fdctdsp"
2511 qcelp_decoder_select="lsp"
2512 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2513 ra_144_decoder_select="audiodsp"
2514 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2515 ralf_decoder_select="golomb"
2516 rawvideo_decoder_select="bswapdsp"
2517 rscc_decoder_select="zlib"
2518 rtjpeg_decoder_select="me_cmp"
2519 rv10_decoder_select="h263_decoder"
2520 rv10_encoder_select="h263_encoder"
2521 rv20_decoder_select="h263_decoder"
2522 rv20_encoder_select="h263_encoder"
2523 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2524 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2525 screenpresso_decoder_select="zlib"
2526 shorten_decoder_select="golomb bswapdsp"
2527 sipr_decoder_select="lsp"
2528 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2529 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2530 sonic_decoder_select="golomb rangecoder"
2531 sonic_encoder_select="golomb rangecoder"
2532 sonic_ls_encoder_select="golomb rangecoder"
2533 sp5x_decoder_select="mjpeg_decoder"
2534 svq1_decoder_select="hpeldsp"
2535 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2536 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2537 svq3_decoder_suggest="zlib"
2538 tak_decoder_select="audiodsp"
2539 tdsc_decoder_select="zlib mjpeg_decoder"
2540 theora_decoder_select="vp3_decoder"
2541 thp_decoder_select="mjpeg_decoder"
2542 tiff_decoder_suggest="zlib lzma"
2543 tiff_encoder_suggest="zlib"
2544 truehd_decoder_select="mlp_parser"
2545 truemotion2_decoder_select="bswapdsp"
2546 truespeech_decoder_select="bswapdsp"
2547 tscc_decoder_select="zlib"
2548 twinvq_decoder_select="mdct lsp sinewin"
2549 txd_decoder_select="texturedsp"
2550 utvideo_decoder_select="bswapdsp llviddsp"
2551 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2552 vble_decoder_select="llviddsp"
2553 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2554 vc1_qsv_decoder_deps="libmfx"
2555 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2556 vc1image_decoder_select="vc1_decoder"
2557 vorbis_decoder_select="mdct"
2558 vorbis_encoder_select="mdct"
2559 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2560 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2561 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2562 vp6a_decoder_select="vp6_decoder"
2563 vp6f_decoder_select="vp6_decoder"
2564 vp7_decoder_select="h264pred videodsp vp8dsp"
2565 vp8_decoder_select="h264pred videodsp vp8dsp"
2566 vp9_decoder_select="videodsp vp9_parser"
2567 webp_decoder_select="vp8_decoder exif"
2568 wmalossless_decoder_select="llauddsp"
2569 wmapro_decoder_select="mdct sinewin wma_freqs"
2570 wmav1_decoder_select="mdct sinewin wma_freqs"
2571 wmav1_encoder_select="mdct sinewin wma_freqs"
2572 wmav2_decoder_select="mdct sinewin wma_freqs"
2573 wmav2_encoder_select="mdct sinewin wma_freqs"
2574 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2575 wmv1_decoder_select="h263_decoder"
2576 wmv1_encoder_select="h263_encoder"
2577 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2578 wmv2_encoder_select="h263_encoder wmv2dsp"
2579 wmv3_decoder_select="vc1_decoder"
2580 wmv3image_decoder_select="wmv3_decoder"
2581 xma1_decoder_select="wmapro_decoder"
2582 xma2_decoder_select="wmapro_decoder"
2583 zerocodec_decoder_select="zlib"
2584 zlib_decoder_select="zlib"
2585 zlib_encoder_select="zlib"
2586 zmbv_decoder_select="zlib"
2587 zmbv_encoder_select="zlib"
2588
2589 # platform codecs
2590 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2591 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2592
2593 # hardware accelerators
2594 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2595 cuda_deps_any="dlopen LoadLibrary"
2596 cuvid_deps="cuda"
2597 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2598 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2599 dxva2_extralibs="-luser32"
2600 vaapi_deps="va_va_h"
2601 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2602 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2603 vda_deps="vda_framework pthreads"
2604 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2605 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2606 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2607 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2608 xvmc_deps="X11_extensions_XvMClib_h"
2609
2610 h263_vaapi_hwaccel_deps="vaapi"
2611 h263_vaapi_hwaccel_select="h263_decoder"
2612 h263_videotoolbox_hwaccel_deps="videotoolbox"
2613 h263_videotoolbox_hwaccel_select="h263_decoder"
2614 h264_cuvid_hwaccel_deps="cuda cuvid"
2615 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2616 h264_d3d11va_hwaccel_deps="d3d11va"
2617 h264_d3d11va_hwaccel_select="h264_decoder"
2618 h264_dxva2_hwaccel_deps="dxva2"
2619 h264_dxva2_hwaccel_select="h264_decoder"
2620 h264_mediacodec_hwaccel_deps="mediacodec"
2621 h264_mmal_hwaccel_deps="mmal"
2622 h264_qsv_hwaccel_deps="libmfx"
2623 h264_vaapi_hwaccel_deps="vaapi"
2624 h264_vaapi_hwaccel_select="h264_decoder"
2625 h264_vda_hwaccel_deps="vda"
2626 h264_vda_hwaccel_select="h264_decoder"
2627 h264_vda_old_hwaccel_deps="vda"
2628 h264_vda_old_hwaccel_select="h264_decoder"
2629 h264_vdpau_hwaccel_deps="vdpau"
2630 h264_vdpau_hwaccel_select="h264_decoder"
2631 h264_videotoolbox_hwaccel_deps="videotoolbox"
2632 h264_videotoolbox_hwaccel_select="h264_decoder"
2633 hevc_cuvid_hwaccel_deps="cuda cuvid"
2634 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2635 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2636 hevc_d3d11va_hwaccel_select="hevc_decoder"
2637 hevc_mediacodec_hwaccel_deps="mediacodec"
2638 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2639 hevc_dxva2_hwaccel_select="hevc_decoder"
2640 hevc_qsv_hwaccel_deps="libmfx"
2641 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2642 hevc_vaapi_hwaccel_select="hevc_decoder"
2643 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2644 hevc_vdpau_hwaccel_select="hevc_decoder"
2645 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2646 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2647 mpeg_xvmc_hwaccel_deps="xvmc"
2648 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2649 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2650 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2651 mpeg1_vdpau_hwaccel_deps="vdpau"
2652 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2653 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2654 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2655 mpeg1_xvmc_hwaccel_deps="xvmc"
2656 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2657 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2658 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2659 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2660 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2661 mpeg2_dxva2_hwaccel_deps="dxva2"
2662 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2663 mpeg2_mmal_hwaccel_deps="mmal"
2664 mpeg2_qsv_hwaccel_deps="libmfx"
2665 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2666 mpeg2_vaapi_hwaccel_deps="vaapi"
2667 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2668 mpeg2_vdpau_hwaccel_deps="vdpau"
2669 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2670 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2671 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2672 mpeg2_xvmc_hwaccel_deps="xvmc"
2673 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2674 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2675 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2676 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2677 mpeg4_mmal_hwaccel_deps="mmal"
2678 mpeg4_vaapi_hwaccel_deps="vaapi"
2679 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2680 mpeg4_vdpau_hwaccel_deps="vdpau"
2681 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2682 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2683 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2684 vc1_cuvid_hwaccel_deps="cuda cuvid"
2685 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2686 vc1_d3d11va_hwaccel_deps="d3d11va"
2687 vc1_d3d11va_hwaccel_select="vc1_decoder"
2688 vc1_dxva2_hwaccel_deps="dxva2"
2689 vc1_dxva2_hwaccel_select="vc1_decoder"
2690 vc1_mmal_hwaccel_deps="mmal"
2691 vc1_qsv_hwaccel_deps="libmfx"
2692 vc1_qsv_hwaccel_select="qsvdec_vc1"
2693 vc1_vaapi_hwaccel_deps="vaapi"
2694 vc1_vaapi_hwaccel_select="vc1_decoder"
2695 vc1_vdpau_hwaccel_deps="vdpau"
2696 vc1_vdpau_hwaccel_select="vc1_decoder"
2697 vp8_cuvid_hwaccel_deps="cuda cuvid"
2698 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2699 vp9_cuvid_hwaccel_deps="cuda cuvid"
2700 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2701 vp8_mediacodec_hwaccel_deps="mediacodec"
2702 vp8_qsv_hwaccel_deps="libmfx"
2703 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2704 vp9_d3d11va_hwaccel_select="vp9_decoder"
2705 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2706 vp9_dxva2_hwaccel_select="vp9_decoder"
2707 vp9_mediacodec_hwaccel_deps="mediacodec"
2708 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2709 vp9_vaapi_hwaccel_select="vp9_decoder"
2710 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2711 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2712 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2713 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2714
2715 # hardware-accelerated codecs
2716 omx_deps="dlopen pthreads"
2717 omx_extralibs='$ldl'
2718 omx_rpi_select="omx"
2719 qsvdec_select="qsv"
2720 qsvenc_select="qsv"
2721 vaapi_encode_deps="vaapi"
2722
2723 hwupload_cuda_filter_deps="cuda"
2724 scale_npp_filter_deps="cuda libnpp"
2725
2726 nvenc_deps="cuda"
2727 nvenc_deps_any="dlopen LoadLibrary"
2728 nvenc_encoder_deps="nvenc"
2729
2730 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2731 h264_cuvid_decoder_deps="cuda cuvid"
2732 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2733 h264_mediacodec_decoder_deps="mediacodec"
2734 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2735 h264_mmal_decoder_deps="mmal"
2736 h264_nvenc_encoder_deps="nvenc"
2737 h264_omx_encoder_deps="omx"
2738 h264_qsv_decoder_deps="libmfx"
2739 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2740 h264_qsv_encoder_deps="libmfx"
2741 h264_qsv_encoder_select="qsvenc"
2742 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2743 h264_vaapi_encoder_select="vaapi_encode golomb"
2744 h264_vda_decoder_deps="vda"
2745 h264_vda_decoder_select="h264_decoder"
2746 h264_vdpau_decoder_deps="vdpau"
2747 h264_vdpau_decoder_select="h264_decoder"
2748 hevc_cuvid_decoder_deps="cuda cuvid"
2749 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2750 hevc_mediacodec_decoder_deps="mediacodec"
2751 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2752 hevc_nvenc_encoder_deps="nvenc"
2753 hevc_qsv_decoder_deps="libmfx"
2754 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2755 hevc_qsv_encoder_deps="libmfx"
2756 hevc_qsv_encoder_select="hevcparse qsvenc"
2757 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2758 hevc_vaapi_encoder_select="vaapi_encode golomb"
2759 mjpeg_cuvid_decoder_deps="cuda cuvid"
2760 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2761 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2762 mpeg1_cuvid_decoder_deps="cuda cuvid"
2763 mpeg1_vdpau_decoder_deps="vdpau"
2764 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2765 mpeg2_crystalhd_decoder_select="crystalhd"
2766 mpeg2_cuvid_decoder_deps="cuda cuvid"
2767 mpeg2_mmal_decoder_deps="mmal"
2768 mpeg2_qsv_decoder_deps="libmfx"
2769 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2770 mpeg2_qsv_encoder_deps="libmfx"
2771 mpeg2_qsv_encoder_select="qsvenc"
2772 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2773 mpeg2_vaapi_encoder_select="vaapi_encode"
2774 mpeg4_crystalhd_decoder_select="crystalhd"
2775 mpeg4_cuvid_decoder_deps="cuda cuvid"
2776 mpeg4_mediacodec_decoder_deps="mediacodec"
2777 mpeg4_mmal_decoder_deps="mmal"
2778 mpeg4_omx_encoder_deps="omx"
2779 mpeg4_vdpau_decoder_deps="vdpau"
2780 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2781 mpeg_vdpau_decoder_deps="vdpau"
2782 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2783 msmpeg4_crystalhd_decoder_select="crystalhd"
2784 nvenc_h264_encoder_deps="nvenc"
2785 nvenc_hevc_encoder_deps="nvenc"
2786 vc1_crystalhd_decoder_select="crystalhd"
2787 vc1_cuvid_decoder_deps="cuda cuvid"
2788 vc1_mmal_decoder_deps="mmal"
2789 vc1_vdpau_decoder_deps="vdpau"
2790 vc1_vdpau_decoder_select="vc1_decoder"
2791 vp8_cuvid_decoder_deps="cuda cuvid"
2792 vp8_mediacodec_decoder_deps="mediacodec"
2793 vp8_qsv_decoder_deps="libmfx"
2794 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2795 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2796 vp8_vaapi_encoder_select="vaapi_encode"
2797 vp9_cuvid_decoder_deps="cuda cuvid"
2798 vp9_mediacodec_decoder_deps="mediacodec"
2799 wmv3_crystalhd_decoder_select="crystalhd"
2800 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2801
2802 # parsers
2803 h264_parser_select="golomb h264dsp h264parse"
2804 hevc_parser_select="golomb hevcparse"
2805 mpegaudio_parser_select="mpegaudioheader"
2806 mpegvideo_parser_select="mpegvideo"
2807 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2808 vc1_parser_select="vc1dsp"
2809
2810 # bitstream_filters
2811 mjpeg2jpeg_bsf_select="jpegtables"
2812
2813 # external libraries
2814 aac_at_decoder_deps="audiotoolbox"
2815 ac3_at_decoder_deps="audiotoolbox"
2816 ac3_at_decoder_select="ac3_parser"
2817 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2818 alac_at_decoder_deps="audiotoolbox"
2819 amr_nb_at_decoder_deps="audiotoolbox"
2820 avisynth_deps_any="dlopen LoadLibrary"
2821 avisynth_demuxer_deps="avisynth"
2822 avisynth_demuxer_select="riffdec"
2823 eac3_at_decoder_deps="audiotoolbox"
2824 eac3_at_decoder_select="ac3_parser"
2825 gsm_ms_at_decoder_deps="audiotoolbox"
2826 ilbc_at_decoder_deps="audiotoolbox"
2827 mp1_at_decoder_deps="audiotoolbox"
2828 mp2_at_decoder_deps="audiotoolbox"
2829 mp3_at_decoder_deps="audiotoolbox"
2830 mp1_at_decoder_select="mpegaudioheader"
2831 mp2_at_decoder_select="mpegaudioheader"
2832 mp3_at_decoder_select="mpegaudioheader"
2833 pcm_alaw_at_decoder_deps="audiotoolbox"
2834 pcm_mulaw_at_decoder_deps="audiotoolbox"
2835 qdmc_at_decoder_deps="audiotoolbox"
2836 qdm2_at_decoder_deps="audiotoolbox"
2837 aac_at_encoder_deps="audiotoolbox"
2838 aac_at_encoder_select="audio_frame_queue"
2839 alac_at_encoder_deps="audiotoolbox"
2840 alac_at_encoder_select="audio_frame_queue"
2841 ilbc_at_encoder_deps="audiotoolbox"
2842 ilbc_at_encoder_select="audio_frame_queue"
2843 pcm_alaw_at_encoder_deps="audiotoolbox"
2844 pcm_alaw_at_encoder_select="audio_frame_queue"
2845 pcm_mulaw_at_encoder_deps="audiotoolbox"
2846 pcm_mulaw_at_encoder_select="audio_frame_queue"
2847 chromaprint_muxer_deps="chromaprint"
2848 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2849 libcelt_decoder_deps="libcelt"
2850 libfdk_aac_decoder_deps="libfdk_aac"
2851 libfdk_aac_encoder_deps="libfdk_aac"
2852 libfdk_aac_encoder_select="audio_frame_queue"
2853 libgme_demuxer_deps="libgme"
2854 libgsm_decoder_deps="libgsm"
2855 libgsm_encoder_deps="libgsm"
2856 libgsm_ms_decoder_deps="libgsm"
2857 libgsm_ms_encoder_deps="libgsm"
2858 libilbc_decoder_deps="libilbc"
2859 libilbc_encoder_deps="libilbc"
2860 libkvazaar_encoder_deps="libkvazaar"
2861 libmodplug_demuxer_deps="libmodplug"
2862 libmp3lame_encoder_deps="libmp3lame"
2863 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2864 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2865 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2866 libopencore_amrnb_encoder_select="audio_frame_queue"
2867 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2868 libopenh264_decoder_deps="libopenh264"
2869 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2870 libopenh264_encoder_deps="libopenh264"
2871 libopenjpeg_decoder_deps="libopenjpeg"
2872 libopenjpeg_encoder_deps="libopenjpeg"
2873 libopenmpt_demuxer_deps="libopenmpt"
2874 libopus_decoder_deps="libopus"
2875 libopus_encoder_deps="libopus"
2876 libopus_encoder_select="audio_frame_queue"
2877 libschroedinger_decoder_deps="libschroedinger"
2878 libschroedinger_encoder_deps="libschroedinger"
2879 libshine_encoder_deps="libshine"
2880 libshine_encoder_select="audio_frame_queue"
2881 libspeex_decoder_deps="libspeex"
2882 libspeex_encoder_deps="libspeex"
2883 libspeex_encoder_select="audio_frame_queue"
2884 libtheora_encoder_deps="libtheora"
2885 libtwolame_encoder_deps="libtwolame"
2886 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2887 libvorbis_decoder_deps="libvorbis"
2888 libvorbis_encoder_deps="libvorbis"
2889 libvorbis_encoder_select="audio_frame_queue"
2890 libvpx_vp8_decoder_deps="libvpx"
2891 libvpx_vp8_encoder_deps="libvpx"
2892 libvpx_vp9_decoder_deps="libvpx"
2893 libvpx_vp9_encoder_deps="libvpx"
2894 libwavpack_encoder_deps="libwavpack"
2895 libwavpack_encoder_select="audio_frame_queue"
2896 libwebp_encoder_deps="libwebp"
2897 libwebp_anim_encoder_deps="libwebp"
2898 libx262_encoder_deps="libx262"
2899 libx264_encoder_deps="libx264"
2900 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2901 libx264rgb_encoder_select="libx264_encoder"
2902 libx265_encoder_deps="libx265"
2903 libxavs_encoder_deps="libxavs"
2904 libxvid_encoder_deps="libxvid"
2905 libzvbi_teletext_decoder_deps="libzvbi"
2906 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2907 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2908 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2909 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2910 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2911
2912 # demuxers / muxers
2913 ac3_demuxer_select="ac3_parser"
2914 aiff_muxer_select="iso_media"
2915 asf_demuxer_select="riffdec"
2916 asf_o_demuxer_select="riffdec"
2917 asf_muxer_select="riffenc"
2918 asf_stream_muxer_select="asf_muxer"
2919 avi_demuxer_select="iso_media riffdec exif"
2920 avi_muxer_select="riffenc"
2921 caf_demuxer_select="iso_media riffdec"
2922 caf_muxer_select="iso_media"
2923 dash_muxer_select="mp4_muxer"
2924 dirac_demuxer_select="dirac_parser"
2925 dts_demuxer_select="dca_parser"
2926 dtshd_demuxer_select="dca_parser"
2927 dv_demuxer_select="dvprofile"
2928 dv_muxer_select="dvprofile"
2929 dxa_demuxer_select="riffdec"
2930 eac3_demuxer_select="ac3_parser"
2931 f4v_muxer_select="mov_muxer"
2932 fifo_muxer_deps="threads"
2933 flac_demuxer_select="flac_parser"
2934 hds_muxer_select="flv_muxer"
2935 hls_muxer_select="mpegts_muxer"
2936 image2_alias_pix_demuxer_select="image2_demuxer"
2937 image2_brender_pix_demuxer_select="image2_demuxer"
2938 ipod_muxer_select="mov_muxer"
2939 ismv_muxer_select="mov_muxer"
2940 libnut_demuxer_deps="libnut"
2941 libnut_muxer_deps="libnut"
2942 matroska_audio_muxer_select="matroska_muxer"
2943 matroska_demuxer_select="iso_media riffdec"
2944 matroska_demuxer_suggest="bzlib lzo zlib"
2945 matroska_muxer_select="iso_media riffenc"
2946 mmf_muxer_select="riffenc"
2947 mov_demuxer_select="iso_media riffdec"
2948 mov_demuxer_suggest="zlib"
2949 mov_muxer_select="iso_media riffenc rtpenc_chain"
2950 mp3_demuxer_select="mpegaudio_parser"
2951 mp3_muxer_select="mpegaudioheader"
2952 mp4_muxer_select="mov_muxer"
2953 mpegts_demuxer_select="iso_media"
2954 mpegts_muxer_select="adts_muxer latm_muxer"
2955 mpegtsraw_demuxer_select="mpegts_demuxer"
2956 mxf_d10_muxer_select="mxf_muxer"
2957 mxf_opatom_muxer_select="mxf_muxer"
2958 nut_muxer_select="riffenc"
2959 nuv_demuxer_select="riffdec"
2960 oga_muxer_select="ogg_muxer"
2961 ogg_demuxer_select="dirac_parse"
2962 ogv_muxer_select="ogg_muxer"
2963 opus_muxer_select="ogg_muxer"
2964 psp_muxer_select="mov_muxer"
2965 rtp_demuxer_select="sdp_demuxer"
2966 rtp_muxer_select="golomb"
2967 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2968 rtsp_demuxer_select="http_protocol rtpdec"
2969 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2970 sap_demuxer_select="sdp_demuxer"
2971 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2972 sdp_demuxer_select="rtpdec"
2973 smoothstreaming_muxer_select="ismv_muxer"
2974 spdif_muxer_select="aac_parser"
2975 spx_muxer_select="ogg_muxer"
2976 swf_demuxer_suggest="zlib"
2977 tak_demuxer_select="tak_parser"
2978 tg2_muxer_select="mov_muxer"
2979 tgp_muxer_select="mov_muxer"
2980 vobsub_demuxer_select="mpegps_demuxer"
2981 w64_demuxer_select="wav_demuxer"
2982 w64_muxer_select="wav_muxer"
2983 wav_demuxer_select="riffdec"
2984 wav_muxer_select="riffenc"
2985 webm_muxer_select="iso_media riffenc"
2986 webm_dash_manifest_demuxer_select="matroska_demuxer"
2987 wtv_demuxer_select="mpegts_demuxer riffdec"
2988 wtv_muxer_select="mpegts_muxer riffenc"
2989 xmv_demuxer_select="riffdec"
2990 xwma_demuxer_select="riffdec"
2991
2992 # indevs / outdevs
2993 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2994 alsa_outdev_deps="alsa_asoundlib_h"
2995 avfoundation_indev_deps="pthreads"
2996 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2997 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2998 caca_outdev_deps="libcaca"
2999 decklink_indev_deps="decklink pthreads"
3000 decklink_indev_extralibs="-lstdc++"
3001 decklink_outdev_deps="decklink pthreads"
3002 decklink_outdev_extralibs="-lstdc++"
3003 dshow_indev_deps="IBaseFilter"
3004 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3005 dv1394_indev_deps="dv1394"
3006 dv1394_indev_select="dv_demuxer"
3007 fbdev_indev_deps="linux_fb_h"
3008 fbdev_outdev_deps="linux_fb_h"
3009 gdigrab_indev_deps="CreateDIBSection"
3010 gdigrab_indev_extralibs="-lgdi32"
3011 gdigrab_indev_select="bmp_decoder"
3012 iec61883_indev_deps="libiec61883"
3013 jack_indev_deps="jack_jack_h"
3014 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3015 lavfi_indev_deps="avfilter"
3016 libcdio_indev_deps="libcdio"
3017 libdc1394_indev_deps="libdc1394"
3018 libv4l2_indev_deps="libv4l2"
3019 openal_indev_deps="openal"
3020 opengl_outdev_deps="opengl"
3021 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3022 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3023 pulse_indev_deps="libpulse"
3024 pulse_outdev_deps="libpulse"
3025 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3026 qtkit_indev_select="qtkit"
3027 sdl2_outdev_deps="sdl2"
3028 sndio_indev_deps="sndio_h"
3029 sndio_outdev_deps="sndio_h"
3030 v4l_indev_deps="linux_videodev_h"
3031 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3032 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3033 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3034 vfwcap_indev_extralibs="-lavicap32"
3035 xcbgrab_indev_deps="libxcb"
3036 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3037 xv_outdev_extralibs="-lXv -lX11 -lXext"
3038
3039 # protocols
3040 async_protocol_deps="threads"
3041 bluray_protocol_deps="libbluray"
3042 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3043 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3044 ffrtmpcrypt_protocol_select="tcp_protocol"
3045 ffrtmphttp_protocol_deps="!librtmp_protocol"
3046 ffrtmphttp_protocol_select="http_protocol"
3047 ftp_protocol_select="tcp_protocol"
3048 gopher_protocol_select="network"
3049 http_protocol_select="tcp_protocol"
3050 httpproxy_protocol_select="tcp_protocol"
3051 https_protocol_select="tls_protocol"
3052 icecast_protocol_select="http_protocol"
3053 librtmp_protocol_deps="librtmp"
3054 librtmpe_protocol_deps="librtmp"
3055 librtmps_protocol_deps="librtmp"
3056 librtmpt_protocol_deps="librtmp"
3057 librtmpte_protocol_deps="librtmp"
3058 libsmbclient_protocol_deps="libsmbclient gplv3"
3059 libssh_protocol_deps="libssh"
3060 mmsh_protocol_select="http_protocol"
3061 mmst_protocol_select="network"
3062 rtmp_protocol_deps="!librtmp_protocol"
3063 rtmp_protocol_select="tcp_protocol"
3064 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3065 rtmps_protocol_deps="!librtmp_protocol"
3066 rtmps_protocol_select="tls_protocol"
3067 rtmpt_protocol_select="ffrtmphttp_protocol"
3068 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3069 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3070 rtp_protocol_select="udp_protocol"
3071 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3072 sctp_protocol_select="network"
3073 srtp_protocol_select="rtp_protocol srtp"
3074 tcp_protocol_select="network"
3075 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3076 tls_gnutls_protocol_select="tcp_protocol"
3077 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3078 tls_openssl_protocol_select="tcp_protocol"
3079 tls_schannel_protocol_deps="schannel"
3080 tls_schannel_protocol_select="tcp_protocol"
3081 tls_securetransport_protocol_deps="securetransport"
3082 tls_securetransport_protocol_select="tcp_protocol"
3083 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3084 udp_protocol_select="network"
3085 udplite_protocol_select="network"
3086 unix_protocol_deps="sys_un_h"
3087 unix_protocol_select="network"
3088
3089 # filters
3090 afftfilt_filter_deps="avcodec"
3091 afftfilt_filter_select="fft"
3092 amovie_filter_deps="avcodec avformat"
3093 aresample_filter_deps="swresample"
3094 ass_filter_deps="libass"
3095 atempo_filter_deps="avcodec"
3096 atempo_filter_select="rdft"
3097 azmq_filter_deps="libzmq"
3098 blackframe_filter_deps="gpl"
3099 boxblur_filter_deps="gpl"
3100 bs2b_filter_deps="libbs2b"
3101 colormatrix_filter_deps="gpl"
3102 cover_rect_filter_deps="avcodec avformat gpl"
3103 cropdetect_filter_deps="gpl"
3104 deinterlace_qsv_filter_deps="libmfx"
3105 deinterlace_vaapi_filter_deps="vaapi"
3106 delogo_filter_deps="gpl"
3107 deshake_filter_select="pixelutils"
3108 drawtext_filter_deps="libfreetype"
3109 eq_filter_deps="gpl"
3110 fftfilt_filter_deps="avcodec"
3111 fftfilt_filter_select="rdft"
3112 find_rect_filter_deps="avcodec avformat gpl"
3113 firequalizer_filter_deps="avcodec"
3114 firequalizer_filter_select="rdft"
3115 flite_filter_deps="libflite"
3116 framerate_filter_select="pixelutils"
3117 frei0r_filter_deps="frei0r dlopen"
3118 frei0r_src_filter_deps="frei0r dlopen"
3119 fspp_filter_deps="gpl"
3120 geq_filter_deps="gpl"
3121 histeq_filter_deps="gpl"
3122 hqdn3d_filter_deps="gpl"
3123 interlace_filter_deps="gpl"
3124 kerndeint_filter_deps="gpl"
3125 ladspa_filter_deps="ladspa dlopen"
3126 mcdeint_filter_deps="avcodec gpl"
3127 movie_filter_deps="avcodec avformat"
3128 mpdecimate_filter_deps="gpl"
3129 mpdecimate_filter_select="pixelutils"
3130 mptestsrc_filter_deps="gpl"
3131 negate_filter_deps="lut_filter"
3132 nnedi_filter_deps="gpl"
3133 ocr_filter_deps="libtesseract"
3134 ocv_filter_deps="libopencv"
3135 owdenoise_filter_deps="gpl"
3136 pan_filter_deps="swresample"
3137 perspective_filter_deps="gpl"
3138 phase_filter_deps="gpl"
3139 pp7_filter_deps="gpl"
3140 pp_filter_deps="gpl postproc"
3141 pullup_filter_deps="gpl"
3142 removelogo_filter_deps="avcodec avformat swscale"
3143 repeatfields_filter_deps="gpl"
3144 resample_filter_deps="avresample"
3145 rubberband_filter_deps="librubberband"
3146 sab_filter_deps="gpl swscale"
3147 scale2ref_filter_deps="swscale"
3148 scale_filter_deps="swscale"
3149 scale_qsv_filter_deps="libmfx"
3150 select_filter_select="pixelutils"
3151 showcqt_filter_deps="avcodec avformat swscale"
3152 showcqt_filter_select="fft"
3153 showfreqs_filter_deps="avcodec"
3154 showfreqs_filter_select="fft"
3155 showspectrum_filter_deps="avcodec"
3156 showspectrum_filter_select="fft"
3157 showspectrumpic_filter_deps="avcodec"
3158 showspectrumpic_filter_select="fft"
3159 signature_filter_deps="gpl avcodec avformat"
3160 smartblur_filter_deps="gpl swscale"
3161 sofalizer_filter_deps="netcdf avcodec"
3162 sofalizer_filter_select="fft"
3163 spectrumsynth_filter_deps="avcodec"
3164 spectrumsynth_filter_select="fft"
3165 spp_filter_deps="gpl avcodec"
3166 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3167 stereo3d_filter_deps="gpl"
3168 subtitles_filter_deps="avformat avcodec libass"
3169 super2xsai_filter_deps="gpl"
3170 pixfmts_super2xsai_test_deps="super2xsai_filter"
3171 tinterlace_filter_deps="gpl"
3172 tinterlace_merge_test_deps="tinterlace_filter"
3173 tinterlace_pad_test_deps="tinterlace_filter"
3174 uspp_filter_deps="gpl avcodec"
3175 vaguedenoiser_filter_deps="gpl"
3176 vidstabdetect_filter_deps="libvidstab"
3177 vidstabtransform_filter_deps="libvidstab"
3178 zmq_filter_deps="libzmq"
3179 zoompan_filter_deps="swscale"
3180 zscale_filter_deps="libzimg"
3181 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3182
3183 # examples
3184 avio_dir_cmd_deps="avformat avutil"
3185 avio_reading_deps="avformat avcodec avutil"
3186 decode_audio_example_deps="avcodec avutil"
3187 decode_video_example_deps="avcodec avutil"
3188 demuxing_decoding_example_deps="avcodec avformat avutil"
3189 encode_audio_example_deps="avcodec avutil"
3190 encode_video_example_deps="avcodec avutil"
3191 extract_mvs_example_deps="avcodec avformat avutil"
3192 filter_audio_example_deps="avfilter avutil"
3193 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3194 filtering_video_example_deps="avfilter avcodec avformat avutil"
3195 http_multiclient_example_deps="avformat avutil fork"
3196 metadata_example_deps="avformat avutil"
3197 muxing_example_deps="avcodec avformat avutil swscale"
3198 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3199 remuxing_example_deps="avcodec avformat avutil"
3200 resampling_audio_example_deps="avutil swresample"
3201 scaling_video_example_deps="avutil swscale"
3202 transcode_aac_example_deps="avcodec avformat swresample"
3203 transcoding_example_deps="avfilter avcodec avformat avutil"
3204
3205 # libraries, in linking order
3206 avcodec_deps="avutil"
3207 avdevice_deps="avformat avcodec avutil"
3208 avfilter_deps="avutil"
3209 avformat_deps="avcodec avutil"
3210 avresample_deps="avutil"
3211 postproc_deps="avutil gpl"
3212 swresample_deps="avutil"
3213 swscale_deps="avutil"
3214
3215 # programs
3216 ffmpeg_deps="avcodec avfilter avformat swresample"
3217 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3218                null_filter
3219                trim_filter"
3220 ffplay_deps="avcodec avformat swscale swresample sdl2"
3221 ffplay_libs='$sdl2_libs'
3222 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3223 ffprobe_deps="avcodec avformat"
3224 ffserver_deps="avformat fork sarestart"
3225 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3226
3227 # documentation
3228 podpages_deps="perl"
3229 manpages_deps="perl pod2man"
3230 htmlpages_deps="perl"
3231 htmlpages_deps_any="makeinfo_html texi2html"
3232 txtpages_deps="perl makeinfo"
3233 doc_deps_any="manpages htmlpages podpages txtpages"
3234
3235 # default parameters
3236
3237 logfile="config.log"
3238
3239 # installation paths
3240 prefix_default="/usr/local"
3241 bindir_default='${prefix}/bin'
3242 datadir_default='${prefix}/share/ffmpeg'
3243 docdir_default='${prefix}/share/doc/ffmpeg'
3244 incdir_default='${prefix}/include'
3245 libdir_default='${prefix}/lib'
3246 mandir_default='${prefix}/share/man'
3247
3248 # toolchain
3249 ar_default="ar"
3250 cc_default="gcc"
3251 cxx_default="g++"
3252 host_cc_default="gcc"
3253 doxygen_default="doxygen"
3254 install="install"
3255 ln_s_default="ln -s -f"
3256 nm_default="nm -g"
3257 objformat="elf"
3258 pkg_config_default=pkg-config
3259 ranlib_default="ranlib"
3260 strip_default="strip"
3261 version_script='--version-script'
3262 yasmexe_default="yasm"
3263 windres_default="windres"
3264
3265 # OS
3266 target_os_default=$(tolower $(uname -s))
3267 host_os=$target_os_default
3268
3269 # machine
3270 if test "$target_os_default" = aix; then
3271     arch_default=$(uname -p)
3272     strip_default="strip -X32_64"
3273 else
3274     arch_default=$(uname -m)
3275 fi
3276 cpu="generic"
3277 intrinsics="none"
3278
3279 # configurable options
3280 enable $PROGRAM_LIST
3281 enable $DOCUMENT_LIST
3282 enable $EXAMPLE_LIST
3283 enable $(filter_out avresample $LIBRARY_LIST)
3284 enable stripping
3285
3286 enable asm
3287 enable debug
3288 enable doc
3289 enable faan faandct faanidct
3290 enable optimizations
3291 enable runtime_cpudetect
3292 enable safe_bitstream_reader
3293 enable static
3294 enable swscale_alpha
3295 enable valgrind_backtrace
3296
3297 sws_max_filter_size_default=256
3298 set_default sws_max_filter_size
3299
3300 # build settings
3301 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3302 LIBPREF="lib"
3303 LIBSUF=".a"
3304 FULLNAME='$(NAME)$(BUILDSUF)'
3305 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3306 SLIBPREF="lib"
3307 SLIBSUF=".so"
3308 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3309 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3310 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3311 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3312 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3313 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3314 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3315
3316 asflags_filter=echo
3317 cflags_filter=echo
3318 ldflags_filter=echo
3319
3320 AS_C='-c'
3321 AS_O='-o $@'
3322 CC_C='-c'
3323 CC_E='-E -o $@'
3324 CC_O='-o $@'
3325 CXX_C='-c'
3326 CXX_O='-o $@'
3327 OBJCC_C='-c'
3328 OBJCC_E='-E -o $@'
3329 OBJCC_O='-o $@'
3330 LD_O='-o $@'
3331 LD_LIB='-l%'
3332 LD_PATH='-L'
3333 HOSTCC_C='-c'
3334 HOSTCC_E='-E -o $@'
3335 HOSTCC_O='-o $@'
3336 HOSTLD_O='-o $@'
3337
3338 host_libs='-lm'
3339 host_cflags_filter=echo
3340 host_ldflags_filter=echo
3341
3342 target_path='$(CURDIR)'
3343
3344 # since the object filename is not given with the -MM flag, the compiler
3345 # is only able to print the basename, and we must add the path ourselves
3346 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3347 DEPFLAGS='-MM'
3348
3349 # find source path
3350 if test -f configure; then
3351     source_path=.
3352 else
3353     source_path=$(cd $(dirname "$0"); pwd)
3354     case "$source_path" in
3355         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3356     esac
3357     test -e "$source_path/config.h" &&
3358         die "Out of tree builds are impossible with config.h in source dir."
3359 fi
3360
3361 for v in "$@"; do
3362     r=${v#*=}
3363     l=${v%"$r"}
3364     r=$(sh_quote "$r")
3365     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3366 done
3367
3368 find_things(){
3369     thing=$1
3370     pattern=$2
3371     file=$source_path/$3
3372     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3373 }
3374
3375 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3376 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3377 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3378 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3379 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3380 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3381 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3382 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3383 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3384
3385 find_things_extern(){
3386     thing=$1
3387     pattern=$2
3388     file=$source_path/$3
3389     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3390 }
3391
3392 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3393 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3394
3395 ALL_COMPONENTS="
3396     $BSF_LIST
3397     $DECODER_LIST
3398     $DEMUXER_LIST
3399     $ENCODER_LIST
3400     $FILTER_LIST
3401     $HWACCEL_LIST
3402     $INDEV_LIST
3403     $MUXER_LIST
3404     $OUTDEV_LIST
3405     $PARSER_LIST
3406     $PROTOCOL_LIST
3407 "
3408
3409 for n in $COMPONENT_LIST; do
3410     v=$(toupper ${n%s})_LIST
3411     eval enable \$$v
3412     eval ${n}_if_any="\$$v"
3413 done
3414
3415 enable $ARCH_EXT_LIST
3416
3417 die_unknown(){
3418     echo "Unknown option \"$1\"."
3419     echo "See $0 --help for available options."
3420     exit 1
3421 }
3422
3423 print_in_columns() {
3424     cols=$(expr $ncols / 24)
3425     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3426 }
3427
3428 show_list() {
3429     suffix=_$1
3430     shift
3431     echo $* | sed s/$suffix//g | print_in_columns
3432     exit 0
3433 }
3434
3435 rand_list(){
3436     IFS=', '
3437     set -- $*
3438     unset IFS
3439     for thing; do
3440         comp=${thing%:*}
3441         prob=${thing#$comp}
3442         prob=${prob#:}
3443         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3444         echo "prob ${prob:-0.5}"
3445         printf '%s\n' $comp
3446     done
3447 }
3448
3449 do_random(){
3450     action=$1
3451     shift
3452     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3453     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3454 }
3455
3456 for opt do
3457     optval="${opt#*=}"
3458     case "$opt" in
3459         --extra-ldflags=*)
3460             add_ldflags $optval
3461         ;;
3462         --extra-ldexeflags=*)
3463             add_ldexeflags $optval
3464         ;;
3465         --extra-ldlibflags=*)
3466             add_ldlibflags $optval
3467         ;;
3468         --extra-libs=*)
3469             add_extralibs $optval
3470         ;;
3471         --disable-devices)
3472             disable $INDEV_LIST $OUTDEV_LIST
3473         ;;
3474         --enable-debug=*)
3475             debuglevel="$optval"
3476         ;;
3477         --disable-programs)
3478             disable $PROGRAM_LIST
3479         ;;
3480         --disable-everything)
3481             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3482         ;;
3483         --disable-all)
3484             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3485             disable $LIBRARY_LIST $PROGRAM_LIST doc
3486             enable avutil
3487         ;;
3488         --enable-random|--disable-random)
3489             action=${opt%%-random}
3490             do_random ${action#--} $COMPONENT_LIST
3491         ;;
3492         --enable-random=*|--disable-random=*)
3493             action=${opt%%-random=*}
3494             do_random ${action#--} $optval
3495         ;;
3496         --enable-*=*|--disable-*=*)
3497             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3498             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3499             eval list=\$$(toupper $thing)_LIST
3500             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3501             list=$(filter "$name" $list)
3502             [ "$list" = "" ] && warn "Option $opt did not match anything"
3503             $action $list
3504         ;;
3505         --enable-?*|--disable-?*)
3506             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3507             if is_in $option $COMPONENT_LIST; then
3508                 test $action = disable && action=unset
3509                 eval $action \$$(toupper ${option%s})_LIST
3510             elif is_in $option $CMDLINE_SELECT; then
3511                 $action $option
3512             else
3513                 die_unknown $opt
3514             fi
3515         ;;
3516         --list-*)
3517             NAME="${opt#--list-}"
3518             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3519             NAME=${NAME%s}
3520             eval show_list $NAME \$$(toupper $NAME)_LIST
3521         ;;
3522         --help|-h) show_help
3523         ;;
3524         --quiet|-q) quiet=yes
3525         ;;
3526         --fatal-warnings) enable fatal_warnings
3527         ;;
3528         *)
3529             optname="${opt%%=*}"
3530             optname="${optname#--}"
3531             optname=$(echo "$optname" | sed 's/-/_/g')
3532             if is_in $optname $CMDLINE_SET; then
3533                 eval $optname='$optval'
3534             elif is_in $optname $CMDLINE_APPEND; then
3535                 append $optname "$optval"
3536             else
3537                 die_unknown $opt
3538             fi
3539         ;;
3540     esac
3541 done
3542
3543 for e in $env; do
3544     eval "export $e"
3545 done
3546
3547 # Mark specifically enabled, but normally autodetected libraries as requested.
3548 for lib in $AUTODETECT_LIBS; do
3549     enabled $lib && request $lib
3550 done
3551
3552 # Enable platform codecs by default.
3553 enable_weak audiotoolbox
3554
3555 # Enable hwaccels by default.
3556 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3557 enable_weak xlib
3558
3559 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3560
3561 disabled logging && logfile=/dev/null
3562
3563 die_license_disabled() {
3564     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3565 }
3566
3567 die_license_disabled_gpl() {
3568     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3569 }
3570
3571 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3572 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3573
3574 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3575 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3576
3577 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3578
3579 # Disable all the library-specific components if the library itself
3580 # is disabled, see AVCODEC_LIST and following _LIST variables.
3581
3582 disable_components(){
3583     disabled ${1} && disable $(
3584         eval components="\$$(toupper ${1})_COMPONENTS"
3585         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3586     )
3587 }
3588
3589 map 'disable_components $v' $LIBRARY_LIST
3590
3591 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3592 set >> $logfile
3593
3594 test -n "$valgrind" && toolchain="valgrind-memcheck"
3595
3596 case "$toolchain" in
3597     *-asan)
3598         cc_default="${toolchain%-asan}"
3599         add_cflags  -fsanitize=address
3600         add_ldflags -fsanitize=address
3601     ;;
3602     *-msan)
3603         cc_default="${toolchain%-msan}"
3604         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3605         add_ldflags -fsanitize=memory
3606     ;;
3607     *-tsan)
3608         cc_default="${toolchain%-tsan}"
3609         add_cflags  -fsanitize=thread -fPIE
3610         add_ldflags -fsanitize=thread -pie
3611         case "$toolchain" in
3612             gcc-tsan)
3613                 add_cflags  -fPIC
3614                 add_ldflags -fPIC
3615                 ;;
3616         esac
3617     ;;
3618     *-usan)
3619         cc_default="${toolchain%-usan}"
3620         add_cflags  -fsanitize=undefined
3621         add_ldflags -fsanitize=undefined
3622     ;;
3623     valgrind-*)
3624         target_exec_default="valgrind"
3625         case "$toolchain" in
3626             valgrind-massif)
3627                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3628                 ;;
3629             valgrind-memcheck)
3630                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3631                 ;;
3632         esac
3633     ;;
3634     msvc)
3635         # Check whether the current MSVC version needs the C99 converter.
3636         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3637         # support enough of C99 to build ffmpeg. Default to the new
3638         # behaviour if the regexp was unable to match anything, since this
3639         # successfully parses the version number of existing supported
3640         # versions that require the converter (MSVC 2010 and 2012).
3641         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3642         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3643             cc_default="cl"
3644         else
3645             cc_default="c99wrap cl"
3646         fi
3647         ld_default="$source_path/compat/windows/mslink"
3648         nm_default="dumpbin -symbols"
3649         ar_default="lib"
3650         case "$arch" in
3651         arm*)
3652             as_default="armasm"
3653             ;;
3654         esac
3655         target_os_default="win32"
3656         # Use a relative path for TMPDIR. This makes sure all the
3657         # ffconf temp files are written with a relative path, avoiding
3658         # issues with msys/win32 path conversion for MSVC parameters
3659         # such as -Fo<file> or -out:<file>.
3660         TMPDIR=.
3661     ;;
3662     icl)
3663         cc_default="icl"
3664         ld_default="xilink"
3665         nm_default="dumpbin -symbols"
3666         ar_default="xilib"
3667         target_os_default="win32"
3668         TMPDIR=.
3669     ;;
3670     gcov)
3671         add_cflags  -fprofile-arcs -ftest-coverage
3672         add_ldflags -fprofile-arcs -ftest-coverage
3673     ;;
3674     llvm-cov)
3675         add_cflags -fprofile-arcs -ftest-coverage
3676         add_ldflags --coverage
3677     ;;
3678     hardened)
3679         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3680         add_cflags   -fno-strict-overflow -fstack-protector-all
3681         add_ldflags  -Wl,-z,relro -Wl,-z,now
3682         add_cflags   -fPIE
3683         add_ldexeflags -fPIE -pie
3684     ;;
3685     ?*)
3686         die "Unknown toolchain $toolchain"
3687     ;;
3688 esac
3689
3690 test -n "$cross_prefix" && enable cross_compile
3691
3692 if enabled cross_compile; then
3693     test -n "$arch" && test -n "$target_os" ||
3694         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3695 fi
3696
3697 ar_default="${cross_prefix}${ar_default}"
3698 cc_default="${cross_prefix}${cc_default}"
3699 cxx_default="${cross_prefix}${cxx_default}"
3700 nm_default="${cross_prefix}${nm_default}"
3701 pkg_config_default="${cross_prefix}${pkg_config_default}"
3702 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3703     ranlib_default="${cross_prefix}${ranlib_default} -D"
3704 else
3705     ranlib_default="${cross_prefix}${ranlib_default}"
3706 fi
3707 strip_default="${cross_prefix}${strip_default}"
3708 windres_default="${cross_prefix}${windres_default}"
3709
3710 sysinclude_default="${sysroot}/usr/include"
3711
3712 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3713     target_exec target_os yasmexe
3714 enabled cross_compile || host_cc_default=$cc
3715 set_default host_cc
3716
3717 pkg_config_fail_message=""
3718 if ! $pkg_config --version >/dev/null 2>&1; then
3719     warn "$pkg_config not found, library detection may fail."
3720     pkg_config=false
3721 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3722     pkg_config_fail_message="
3723 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3724 fi
3725
3726 if test $doxygen != $doxygen_default && \
3727   ! $doxygen --version >/dev/null 2>&1; then
3728     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3729 fi
3730
3731 exesuf() {
3732     case $1 in
3733         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3734     esac
3735 }
3736
3737 EXESUF=$(exesuf $target_os)
3738 HOSTEXESUF=$(exesuf $host_os)
3739
3740 # set temporary file name
3741 : ${TMPDIR:=$TEMPDIR}
3742 : ${TMPDIR:=$TMP}
3743 : ${TMPDIR:=/tmp}
3744
3745 if [ -n "$tempprefix" ] ; then
3746     mktemp(){
3747         echo $tempprefix.${HOSTNAME}.${UID}
3748     }
3749 elif ! check_cmd mktemp -u XXXXXX; then
3750     # simple replacement for missing mktemp
3751     # NOT SAFE FOR GENERAL USE
3752     mktemp(){
3753         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3754     }
3755 fi
3756
3757 tmpfile(){
3758     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3759         (set -C; exec > $tmp) 2>/dev/null ||
3760         die "Unable to create temporary file in $TMPDIR."
3761     append TMPFILES $tmp
3762     eval $1=$tmp
3763 }
3764
3765 trap 'rm -f -- $TMPFILES' EXIT
3766
3767 tmpfile TMPASM .asm
3768 tmpfile TMPC   .c
3769 tmpfile TMPCPP .cpp
3770 tmpfile TMPE   $EXESUF
3771 tmpfile TMPH   .h
3772 tmpfile TMPM   .m
3773 tmpfile TMPO   .o
3774 tmpfile TMPS   .S
3775 tmpfile TMPSH  .sh
3776 tmpfile TMPV   .ver
3777
3778 unset -f mktemp
3779
3780 chmod +x $TMPE
3781
3782 # make sure we can execute files in $TMPDIR
3783 cat > $TMPSH 2>> $logfile <<EOF
3784 #! /bin/sh
3785 EOF
3786 chmod +x $TMPSH >> $logfile 2>&1
3787 if ! $TMPSH >> $logfile 2>&1; then
3788     cat <<EOF
3789 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3790 variable to another directory and make sure that it is not mounted noexec.
3791 EOF
3792     die "Sanity test failed."
3793 fi
3794
3795 armasm_flags(){
3796     for flag; do
3797         case $flag in
3798             # Filter out MSVC cl.exe options from cflags that shouldn't
3799             # be passed to gas-preprocessor
3800             -M[TD]*)                                            ;;
3801             *)                  echo $flag                      ;;
3802         esac
3803    done
3804 }
3805
3806 ccc_flags(){
3807     for flag; do
3808         case $flag in
3809             -std=c99)           echo -c99                       ;;
3810             -mcpu=*)            echo -arch ${flag#*=}           ;;
3811             -mieee)             echo -ieee                      ;;
3812             -O*|-fast)          echo $flag                      ;;
3813             -fno-math-errno)    echo -assume nomath_errno       ;;
3814             -g)                 echo -g3                        ;;
3815             -Wall)              echo -msg_enable level2         ;;
3816             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3817             -Wl,*)              echo $flag                      ;;
3818             -f*|-W*)                                            ;;
3819             *)                  echo $flag                      ;;
3820         esac
3821    done
3822 }
3823
3824 cparser_flags(){
3825     for flag; do
3826         case $flag in
3827             -Wno-switch)             echo -Wno-switch-enum ;;
3828             -Wno-format-zero-length) ;;
3829             -Wdisabled-optimization) ;;
3830             -Wno-pointer-sign)       echo -Wno-other ;;
3831             *)                       echo $flag ;;
3832         esac
3833     done
3834 }
3835
3836 msvc_common_flags(){
3837     for flag; do
3838         case $flag in
3839             # In addition to specifying certain flags under the compiler
3840             # specific filters, they must be specified here as well or else the
3841             # generic catch all at the bottom will print the original flag.
3842             -Wall)                ;;
3843             -std=c99)             ;;
3844             # Common flags
3845             -fomit-frame-pointer) ;;
3846             -g)                   echo -Z7 ;;
3847             -fno-math-errno)      ;;
3848             -fno-common)          ;;
3849             -fno-signed-zeros)    ;;
3850             -fPIC)                ;;
3851             -mthumb)              ;;
3852             -march=*)             ;;
3853             -lz)                  echo zlib.lib ;;
3854             -lavicap32)           echo vfw32.lib user32.lib ;;
3855             -lx264)               echo libx264.lib ;;
3856             -l*)                  echo ${flag#-l}.lib ;;
3857             -LARGEADDRESSAWARE)   echo $flag ;;
3858             -L*)                  echo -libpath:${flag#-L} ;;
3859             *)                    echo $flag ;;
3860         esac
3861     done
3862 }
3863
3864 msvc_flags(){
3865     msvc_common_flags "$@"
3866     for flag; do
3867         case $flag in
3868             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3869                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3870                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3871                                        -wd4307 \
3872                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3873         esac
3874     done
3875 }
3876
3877 icl_flags(){
3878     msvc_common_flags "$@"
3879     for flag; do
3880         case $flag in
3881             # Despite what Intel's documentation says -Wall, which is supported
3882             # on Windows, does enable remarks so disable them here.
3883             -Wall)                echo $flag -Qdiag-disable:remark ;;
3884             -std=c99)             echo -Qstd=c99 ;;
3885             -flto)                echo -ipo ;;
3886         esac
3887     done
3888 }
3889
3890 icc_flags(){
3891     for flag; do
3892         case $flag in
3893             -flto)                echo -ipo ;;
3894             *)                    echo $flag ;;
3895         esac
3896     done
3897 }
3898
3899 pgi_flags(){
3900     for flag; do
3901         case $flag in
3902             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3903             -fomit-frame-pointer) echo -Mnoframe ;;
3904             -g)                   echo -gopt ;;
3905             *)                    echo $flag ;;
3906         esac
3907     done
3908 }
3909
3910 suncc_flags(){
3911     for flag; do
3912         case $flag in
3913             -march=*|-mcpu=*)
3914                 case "${flag#*=}" in
3915                     native)                   echo -xtarget=native       ;;
3916                     v9|niagara)               echo -xarch=sparc          ;;
3917                     ultrasparc)               echo -xarch=sparcvis       ;;
3918                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3919                     i586|pentium)             echo -xchip=pentium        ;;
3920                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3921                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3922                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3923                     pentium4*)          echo -xtarget=pentium4           ;;
3924                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3925                     *-sse3)             echo -xarch=sse3                 ;;
3926                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3927                     bonnell)                   echo -xarch=ssse3         ;;
3928                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3929                     westmere)                  echo -xtarget=westmere    ;;
3930                     silvermont)                echo -xarch=sse4_2        ;;
3931                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3932                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3933                                                echo -xarch=avx           ;;
3934                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3935                     btver1)                    echo -xarch=amdsse4a      ;;
3936                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3937                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3938                     k8|opteron|athlon64|athlon-fx)
3939                                                echo -xarch=sse2a         ;;
3940                     athlon*)                   echo -xarch=pentium_proa  ;;
3941                 esac
3942                 ;;
3943             -std=c99)             echo -xc99              ;;
3944             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3945             -fPIC)                echo -KPIC -xcode=pic32 ;;
3946             -W*,*)                echo $flag              ;;
3947             -f*-*|-W*|-mimpure-text)                      ;;
3948             -shared)              echo -G                 ;;
3949             *)                    echo $flag              ;;
3950         esac
3951     done
3952 }
3953
3954 tms470_flags(){
3955     for flag; do
3956         case $flag in
3957             -march=*|-mcpu=*)
3958                 case "${flag#*=}" in
3959                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3960                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3961                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3962                     armv6*|arm11*)          echo -mv=6   ;;
3963                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3964                                             echo -mv=5e  ;;
3965                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3966                 esac
3967                 ;;
3968             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3969             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3970             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3971             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3972             -msoft-float)   echo --float_support=vfplib       ;;
3973             -O[0-3]|-mf=*)  echo $flag                        ;;
3974             -g)             echo -g -mn                       ;;
3975             -pds=*)         echo $flag                        ;;
3976             -D*|-I*)        echo $flag                        ;;
3977             --gcc|--abi=*)  echo $flag                        ;;
3978             -me)            echo $flag                        ;;
3979         esac
3980     done
3981 }
3982
3983 probe_cc(){
3984     pfx=$1
3985     _cc=$2
3986     first=$3
3987
3988     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3989     unset _ld_o _ldflags _ld_lib _ld_path
3990     unset _depflags _DEPCMD _DEPFLAGS
3991     _flags_filter=echo
3992
3993     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3994         true # no-op to avoid reading stdin in following checks
3995     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3996         _type=llvm_gcc
3997         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3998         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3999         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4000         _cflags_speed='-O3'
4001         _cflags_size='-Os'
4002     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4003         _type=gcc
4004         gcc_version=$($_cc --version | head -n1)
4005         gcc_basever=$($_cc -dumpversion)
4006         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4007         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4008         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4009         case $gcc_basever in
4010             2) ;;
4011             2.*) ;;
4012             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4013         esac
4014         if [ "$first" = true ]; then
4015             case $gcc_basever in
4016                 4.2*)
4017                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4018             esac
4019         fi
4020         _cflags_speed='-O3'
4021         _cflags_size='-Os'
4022     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4023         _type=icc
4024         _ident=$($_cc --version | head -n1)
4025         _depflags='-MMD'
4026         _cflags_speed='-O3'
4027         _cflags_size='-Os'
4028         _cflags_noopt='-O1'
4029         _flags_filter=icc_flags
4030     elif $_cc -v 2>&1 | grep -q xlc; then
4031         _type=xlc
4032         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4033         _cflags_speed='-O5'
4034         _cflags_size='-O5 -qcompact'
4035     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4036         _type=ccc
4037         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4038         _DEPFLAGS='-M'
4039         _cflags_speed='-fast'
4040         _cflags_size='-O1'
4041         _flags_filter=ccc_flags
4042     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4043         test -d "$sysroot" || die "No valid sysroot specified."
4044         _type=armcc
4045         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4046         armcc_conf="$PWD/armcc.conf"
4047         $_cc --arm_linux_configure                 \
4048              --arm_linux_config_file="$armcc_conf" \
4049              --configure_sysroot="$sysroot"        \
4050              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4051              die "Error creating armcc configuration file."
4052         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4053         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4054         as_default="${cross_prefix}gcc"
4055         _depflags='-MMD'
4056         _cflags_speed='-O3'
4057         _cflags_size='-Os'
4058     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4059         _type=tms470
4060         _ident=$($_cc -version | head -n1 | tr -s ' ')
4061         _flags='--gcc --abi=eabi -me'
4062         _cc_e='-ppl -fe=$@'
4063         _cc_o='-fe=$@'
4064         _depflags='-ppa -ppd=$(@:.o=.d)'
4065         _cflags_speed='-O3 -mf=5'
4066         _cflags_size='-O3 -mf=2'
4067         _flags_filter=tms470_flags
4068     elif $_cc -v 2>&1 | grep -q clang; then
4069         _type=clang
4070         _ident=$($_cc --version 2>/dev/null | head -n1)
4071         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4072         _cflags_speed='-O3'
4073         _cflags_size='-Oz'
4074     elif $_cc -V 2>&1 | grep -q Sun; then
4075         _type=suncc
4076         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4077         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4078         _DEPFLAGS='-xM1 -xc99'
4079         _ldflags='-std=c99'
4080         _cflags_speed='-O5'
4081         _cflags_size='-O5 -xspace'
4082         _flags_filter=suncc_flags
4083     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4084         _type=pathscale
4085         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4086         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4087         _cflags_speed='-O2'
4088         _cflags_size='-Os'
4089         _flags_filter='filter_out -Wdisabled-optimization'
4090     elif $_cc -v 2>&1 | grep -q Open64; then
4091         _type=open64
4092         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4093         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4094         _cflags_speed='-O2'
4095         _cflags_size='-Os'
4096         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4097     elif $_cc -V 2>&1 | grep -q Portland; then
4098         _type=pgi
4099         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4100         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4101         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4102         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4103         _cflags_noopt="-O"
4104         _flags_filter=pgi_flags
4105     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4106         _type=armasm
4107         _ident=$($_cc | head -n1)
4108         # 4509: "This form of conditional instruction is deprecated"
4109         _flags="-nologo -ignore 4509"
4110         _flags_filter=armasm_flags
4111     elif $_cc 2>&1 | grep -q Intel; then
4112         _type=icl
4113         _ident=$($_cc 2>&1 | head -n1)
4114         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4115         # Not only is O3 broken on 13.x+ but it is slower on all previous
4116         # versions (tested) as well.
4117         _cflags_speed="-O2"
4118         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4119         if $_cc 2>&1 | grep -q Linker; then
4120             _ld_o='-out:$@'
4121         else
4122             _ld_o='-Fe$@'
4123         fi
4124         _cc_o='-Fo$@'
4125         _cc_e='-P'
4126         _flags_filter=icl_flags
4127         _ld_lib='lib%.a'
4128         _ld_path='-libpath:'
4129         # -Qdiag-error to make icl error when seeing certain unknown arguments
4130         _flags='-nologo -Qdiag-error:4044,10157'
4131         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4132         # with MSVC which enables it by default.
4133         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4134         disable stripping
4135     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4136         # lld can emulate multiple different linkers; in ms link.exe mode,
4137         # the -? parameter gives the help output which contains an identifyable
4138         # string, while it gives an error in other modes.
4139         _type=lld-link
4140         # The link.exe mode doesn't have a switch for getting the version,
4141         # but we can force it back to gnu mode and get the version from there.
4142         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4143         _ld_o='-out:$@'
4144         _flags_filter=msvc_flags
4145         _ld_lib='lib%.a'
4146         _ld_path='-libpath:'
4147     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4148         _type=msvc
4149         _ident=$($_cc 2>&1 | head -n1)
4150         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4151         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4152         _cflags_speed="-O2"
4153         _cflags_size="-O1"
4154         if $_cc -nologo- 2>&1 | grep -q Linker; then
4155             _ld_o='-out:$@'
4156         else
4157             _ld_o='-Fe$@'
4158         fi
4159         _cc_o='-Fo$@'
4160         _cc_e='-P -Fi$@'
4161         _flags_filter=msvc_flags
4162         _ld_lib='lib%.a'
4163         _ld_path='-libpath:'
4164         _flags='-nologo'
4165         disable stripping
4166     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4167         _type=cparser
4168         _ident=$($_cc --version | head -n1)
4169         _depflags='-MMD'
4170         _cflags_speed='-O4'
4171         _cflags_size='-O2'
4172         _flags_filter=cparser_flags
4173     fi
4174
4175     eval ${pfx}_type=\$_type
4176     eval ${pfx}_ident=\$_ident
4177 }
4178
4179 set_ccvars(){
4180     eval ${1}_C=\${_cc_c-\${${1}_C}}
4181     eval ${1}_E=\${_cc_e-\${${1}_E}}
4182     eval ${1}_O=\${_cc_o-\${${1}_O}}
4183
4184     if [ -n "$_depflags" ]; then
4185         eval ${1}_DEPFLAGS=\$_depflags
4186     else
4187         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4188         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4189         eval DEP${1}FLAGS=\$_flags
4190     fi
4191 }
4192
4193 probe_cc cc "$cc" "true"
4194 cflags_filter=$_flags_filter
4195 cflags_speed=$_cflags_speed
4196 cflags_size=$_cflags_size
4197 cflags_noopt=$_cflags_noopt
4198 add_cflags $_flags $_cflags
4199 cc_ldflags=$_ldflags
4200 set_ccvars CC
4201
4202 probe_cc hostcc "$host_cc"
4203 host_cflags_filter=$_flags_filter
4204 add_host_cflags  $_flags $_cflags
4205 set_ccvars HOSTCC
4206
4207 test -n "$cc_type" && enable $cc_type ||
4208     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4209
4210 : ${as_default:=$cc}
4211 : ${objcc_default:=$cc}
4212 : ${dep_cc_default:=$cc}
4213 : ${ld_default:=$cc}
4214 : ${host_ld_default:=$host_cc}
4215 set_default ar as objcc dep_cc ld ln_s host_ld windres
4216
4217 probe_cc as "$as"
4218 asflags_filter=$_flags_filter
4219 add_asflags $_flags $_cflags
4220 set_ccvars AS
4221
4222 probe_cc objcc "$objcc"
4223 objcflags_filter=$_flags_filter
4224 add_objcflags $_flags $_cflags
4225 set_ccvars OBJC
4226
4227 probe_cc ld "$ld"
4228 ldflags_filter=$_flags_filter
4229 add_ldflags $_flags $_ldflags
4230 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4231 LD_O=${_ld_o-$LD_O}
4232 LD_LIB=${_ld_lib-$LD_LIB}
4233 LD_PATH=${_ld_path-$LD_PATH}
4234
4235 probe_cc hostld "$host_ld"
4236 host_ldflags_filter=$_flags_filter
4237 add_host_ldflags $_flags $_ldflags
4238 HOSTLD_O=${_ld_o-$HOSTLD_O}
4239
4240 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4241     probe_cc depcc "$dep_cc"
4242     CCDEP=${_DEPCMD:-$DEPCMD}
4243     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4244     DEPCCFLAGS=$_flags
4245 fi
4246
4247 if $ar 2>&1 | grep -q Microsoft; then
4248     arflags="-nologo"
4249     ar_o='-out:$@'
4250 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4251     arflags="rq"
4252     ar_o='$@'
4253 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4254     arflags='-Xany -r -c'
4255     ar_o='$@'
4256 elif $ar 2>&1 | grep -q "\[D\] "; then
4257     arflags="rcD"
4258     ar_o='$@'
4259 else
4260     arflags="rc"
4261     ar_o='$@'
4262 fi
4263
4264 add_cflags $extra_cflags
4265 add_cxxflags $extra_cxxflags
4266 add_objcflags $extra_objcflags
4267 add_asflags $extra_cflags
4268
4269 if test -n "$sysroot"; then
4270     case "$cc_type" in
4271         gcc|llvm_gcc|clang)
4272             add_cppflags --sysroot="$sysroot"
4273             add_ldflags --sysroot="$sysroot"
4274 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4275             add_cppflags -isysroot "$sysroot"
4276             add_ldflags -isysroot "$sysroot"
4277         ;;
4278         tms470)
4279             add_cppflags -I"$sysinclude"
4280             add_ldflags  --sysroot="$sysroot"
4281         ;;
4282     esac
4283 fi
4284
4285 if test "$cpu" = host; then
4286     enabled cross_compile &&
4287         die "--cpu=host makes no sense when cross-compiling."
4288
4289     case "$cc_type" in
4290         gcc|llvm_gcc)
4291             check_native(){
4292                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4293                 sed -n "/cc1.*$1=/{
4294                             s/.*$1=\\([^ ]*\\).*/\\1/
4295                             p
4296                             q
4297                         }" $TMPE
4298             }
4299             cpu=$(check_native -march || check_native -mcpu)
4300         ;;
4301         clang)
4302             check_native(){
4303                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4304                 sed -n "/cc1.*-target-cpu /{
4305                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4306                             p
4307                             q
4308                         }" $TMPE
4309             }
4310             cpu=$(check_native -march)
4311         ;;
4312     esac
4313
4314     test "${cpu:-host}" = host &&
4315         die "--cpu=host not supported with compiler $cc"
4316 fi
4317
4318 # Deal with common $arch aliases
4319 case "$arch" in
4320     aarch64|arm64)
4321         arch="aarch64"
4322     ;;
4323     arm*|iPad*|iPhone*)
4324         arch="arm"
4325     ;;
4326     mips*|IP*)
4327         case "$arch" in
4328         *el)
4329             add_cppflags -EL
4330             add_ldflags -EL
4331         ;;
4332         *eb)
4333             add_cppflags -EB
4334             add_ldflags -EB
4335         ;;
4336         esac
4337         arch="mips"
4338     ;;
4339     parisc*|hppa*)
4340         arch="parisc"
4341     ;;
4342     "Power Macintosh"|ppc*|powerpc*)
4343         arch="ppc"
4344     ;;
4345     s390|s390x)
4346         arch="s390"
4347     ;;
4348     sh4|sh)
4349         arch="sh4"
4350     ;;
4351     sun4*|sparc*)
4352         arch="sparc"
4353     ;;
4354     tilegx|tile-gx)
4355         arch="tilegx"
4356     ;;
4357     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4358         arch="x86"
4359     ;;
4360 esac
4361
4362 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4363 enable $arch
4364
4365 # Add processor-specific flags
4366 if enabled aarch64; then
4367
4368     case $cpu in
4369         armv*)
4370             cpuflags="-march=$cpu"
4371         ;;
4372         *)
4373             cpuflags="-mcpu=$cpu"
4374         ;;
4375     esac
4376
4377 elif enabled alpha; then
4378
4379     cpuflags="-mcpu=$cpu"
4380
4381 elif enabled arm; then
4382
4383     check_arm_arch() {
4384         check_cpp_condition stddef.h \
4385             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4386             $cpuflags
4387     }
4388
4389     probe_arm_arch() {
4390         if   check_arm_arch 4;        then echo armv4
4391         elif check_arm_arch 4T;       then echo armv4t
4392         elif check_arm_arch 5;        then echo armv5
4393         elif check_arm_arch 5E;       then echo armv5e
4394         elif check_arm_arch 5T;       then echo armv5t
4395         elif check_arm_arch 5TE;      then echo armv5te
4396         elif check_arm_arch 5TEJ;     then echo armv5te
4397         elif check_arm_arch 6;        then echo armv6
4398         elif check_arm_arch 6J;       then echo armv6j
4399         elif check_arm_arch 6K;       then echo armv6k
4400         elif check_arm_arch 6Z;       then echo armv6z
4401         elif check_arm_arch 6ZK;      then echo armv6zk
4402         elif check_arm_arch 6T2;      then echo armv6t2
4403         elif check_arm_arch 7;        then echo armv7
4404         elif check_arm_arch 7A  7_A;  then echo armv7-a
4405         elif check_arm_arch 7S;       then echo armv7-a
4406         elif check_arm_arch 7R  7_R;  then echo armv7-r
4407         elif check_arm_arch 7M  7_M;  then echo armv7-m
4408         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4409         elif check_arm_arch 8A  8_A;  then echo armv8-a
4410         fi
4411     }
4412
4413     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4414
4415     case $cpu in
4416         armv*)
4417             cpuflags="-march=$cpu"
4418             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4419         ;;
4420         *)
4421             cpuflags="-mcpu=$cpu"
4422             case $cpu in
4423                 cortex-a*)                               subarch=armv7a  ;;
4424                 cortex-r*)                               subarch=armv7r  ;;
4425                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4426                 arm11*)                                  subarch=armv6   ;;
4427                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4428                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4429                 *)                             subarch=$(probe_arm_arch) ;;
4430             esac
4431         ;;
4432     esac
4433
4434     case "$subarch" in
4435         armv5t*)    enable fast_clz                ;;
4436         armv[6-8]*)
4437             enable fast_clz
4438             disabled fast_unaligned || enable fast_unaligned
4439             ;;
4440     esac
4441
4442 elif enabled avr32; then
4443
4444     case $cpu in
4445         ap7[02]0[0-2])
4446             subarch="avr32_ap"
4447             cpuflags="-mpart=$cpu"
4448         ;;
4449         ap)
4450             subarch="avr32_ap"
4451             cpuflags="-march=$cpu"
4452         ;;
4453         uc3[ab]*)
4454             subarch="avr32_uc"
4455             cpuflags="-mcpu=$cpu"
4456         ;;
4457         uc)
4458             subarch="avr32_uc"
4459             cpuflags="-march=$cpu"
4460         ;;
4461     esac
4462
4463 elif enabled bfin; then
4464
4465     cpuflags="-mcpu=$cpu"
4466
4467 elif enabled mips; then
4468
4469     cpuflags="-march=$cpu"
4470
4471     if [ "$cpu" != "generic" ]; then
4472         disable mips32r2
4473         disable mips32r5
4474         disable mips64r2
4475         disable mips32r6
4476         disable mips64r6
4477         disable loongson2
4478         disable loongson3
4479
4480         case $cpu in
4481             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4482                 enable mips32r2
4483                 disable msa
4484             ;;
4485             p5600|i6400|p6600)
4486                 disable mipsdsp
4487                 disable mipsdspr2
4488             ;;
4489             loongson*)
4490                 enable loongson2
4491                 enable loongson3
4492                 enable local_aligned_8 local_aligned_16 local_aligned_32
4493                 enable simd_align_16
4494                 enable fast_64bit
4495                 enable fast_clz
4496                 enable fast_cmov
4497                 enable fast_unaligned
4498                 disable aligned_stack
4499                 disable mipsfpu
4500                 disable mipsdsp
4501                 disable mipsdspr2
4502                 case $cpu in
4503                     loongson3*)
4504                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4505                     ;;
4506                     loongson2e)
4507                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4508                     ;;
4509                     loongson2f)
4510                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4511                     ;;
4512                 esac
4513             ;;
4514             *)
4515                 # Unknown CPU. Disable everything.
4516                 warn "unknown CPU. Disabling all MIPS optimizations."
4517                 disable mipsfpu
4518                 disable mipsdsp
4519                 disable mipsdspr2
4520                 disable msa
4521                 disable mmi
4522             ;;
4523         esac
4524
4525         case $cpu in
4526             24kc)
4527                 disable mipsfpu
4528                 disable mipsdsp
4529                 disable mipsdspr2
4530             ;;
4531             24kf*)
4532                 disable mipsdsp
4533                 disable mipsdspr2
4534             ;;
4535             24kec|34kc|1004kc)
4536                 disable mipsfpu
4537                 disable mipsdspr2
4538             ;;
4539             24kef*|34kf*|1004kf*)
4540                 disable mipsdspr2
4541             ;;
4542             74kc)
4543                 disable mipsfpu
4544             ;;
4545             p5600)
4546                 enable mips32r5
4547                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4548             ;;
4549             i6400)
4550                 enable mips64r6
4551                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4552             ;;
4553             p6600)
4554                 enable mips64r6
4555                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4556             ;;
4557         esac
4558     else
4559         # We do not disable anything. Is up to the user to disable the unwanted features.
4560         warn 'generic cpu selected'
4561     fi
4562
4563 elif enabled ppc; then
4564
4565     disable ldbrx
4566
4567     case $(tolower $cpu) in
4568         601|ppc601|powerpc601)
4569             cpuflags="-mcpu=601"
4570             disable altivec
4571         ;;
4572         603*|ppc603*|powerpc603*)
4573             cpuflags="-mcpu=603"
4574             disable altivec
4575         ;;
4576         604*|ppc604*|powerpc604*)
4577             cpuflags="-mcpu=604"
4578             disable altivec
4579         ;;
4580         g3|75*|ppc75*|powerpc75*)
4581             cpuflags="-mcpu=750"
4582             disable altivec
4583         ;;
4584         g4|745*|ppc745*|powerpc745*)
4585             cpuflags="-mcpu=7450"
4586             disable vsx
4587         ;;
4588         74*|ppc74*|powerpc74*)
4589             cpuflags="-mcpu=7400"
4590             disable vsx
4591         ;;
4592         g5|970|ppc970|powerpc970)
4593             cpuflags="-mcpu=970"
4594             disable vsx
4595         ;;
4596         power[3-6]*)
4597             cpuflags="-mcpu=$cpu"
4598             disable vsx
4599         ;;
4600         power[7-8]*)
4601             cpuflags="-mcpu=$cpu"
4602         ;;
4603         cell)
4604             cpuflags="-mcpu=cell"
4605             enable ldbrx
4606             disable vsx
4607         ;;
4608         e500mc)
4609             cpuflags="-mcpu=e500mc"
4610             disable altivec
4611         ;;
4612         e500v2)
4613             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4614             disable altivec
4615             disable dcbzl
4616         ;;
4617         e500)
4618             cpuflags="-mcpu=8540 -mhard-float"
4619             disable altivec
4620             disable dcbzl
4621         ;;
4622     esac
4623
4624 elif enabled sparc; then
4625
4626     case $cpu in
4627         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4628             cpuflags="-mcpu=$cpu"
4629         ;;
4630         ultrasparc*|niagara[234])
4631             cpuflags="-mcpu=$cpu"
4632         ;;
4633     esac
4634
4635 elif enabled x86; then
4636
4637     case $cpu in
4638         i[345]86|pentium)
4639             cpuflags="-march=$cpu"
4640             disable i686
4641             disable mmx
4642         ;;
4643         # targets that do NOT support nopl and conditional mov (cmov)
4644         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4645             cpuflags="-march=$cpu"
4646             disable i686
4647         ;;
4648         # targets that do support nopl and conditional mov (cmov)
4649         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4650         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4651         |amdfam10|barcelona|b[dt]ver*|znver*)
4652             cpuflags="-march=$cpu"
4653             enable i686
4654             enable fast_cmov
4655         ;;
4656         # targets that do support conditional mov but on which it's slow
4657         pentium4|pentium4m|prescott|nocona)
4658             cpuflags="-march=$cpu"
4659             enable i686
4660             disable fast_cmov
4661         ;;
4662     esac
4663
4664 fi
4665
4666 if [ "$cpu" != generic ]; then
4667     add_cflags  $cpuflags
4668     add_asflags $cpuflags
4669     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4670 fi
4671
4672 # compiler sanity check
4673 check_exec <<EOF
4674 int main(void){ return 0; }
4675 EOF
4676 if test "$?" != 0; then
4677     echo "$cc is unable to create an executable file."
4678     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4679         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4680         echo "Only do this if you know what cross compiling means."
4681     fi
4682     die "C compiler test failed."
4683 fi
4684
4685 add_cppflags -D_ISOC99_SOURCE
4686 add_cxxflags -D__STDC_CONSTANT_MACROS
4687 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4688
4689 # some compilers silently accept -std=c11, so we also need to check that the
4690 # version macro is defined properly
4691 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4692     add_cflags -std=c11
4693 else
4694     check_cflags -std=c99
4695 fi
4696
4697 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4698 #include <stdlib.h>
4699 EOF
4700 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4701 #include <stdlib.h>
4702 EOF
4703
4704 add_host_cppflags -D_ISOC99_SOURCE
4705 check_host_cflags -std=c99
4706 check_host_cflags -Wall
4707 check_host_cflags -O3
4708
4709 check_64bit(){
4710     arch32=$1
4711     arch64=$2
4712     expr=$3
4713     check_code cc "" "int test[2*($expr) - 1]" &&
4714         subarch=$arch64 || subarch=$arch32
4715 }
4716
4717 case "$arch" in
4718     aarch64|alpha|ia64)
4719         spic=$shared
4720     ;;
4721     mips)
4722         check_64bit mips mips64 '_MIPS_SIM > 1'
4723         spic=$shared
4724     ;;
4725     parisc)
4726         check_64bit parisc parisc64 'sizeof(void *) > 4'
4727         spic=$shared
4728     ;;
4729     ppc)
4730         check_64bit ppc ppc64 'sizeof(void *) > 4'
4731         spic=$shared
4732     ;;
4733     s390)
4734         check_64bit s390 s390x 'sizeof(void *) > 4'
4735         spic=$shared
4736     ;;
4737     sparc)
4738         check_64bit sparc sparc64 'sizeof(void *) > 4'
4739         spic=$shared
4740     ;;
4741     x86)
4742         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4743         # Treat x32 as x64 for now. Note it also needs spic=$shared
4744         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4745             subarch=x86_64
4746         if test "$subarch" = "x86_64"; then
4747             spic=$shared
4748         fi
4749     ;;
4750     ppc)
4751         check_cc <<EOF && subarch="ppc64"
4752         int test[(int)sizeof(char*) - 7];
4753 EOF
4754     ;;
4755 esac
4756
4757 enable $subarch
4758 enabled spic && enable_weak pic
4759
4760 # OS specific
4761 case $target_os in
4762     aix)
4763         SHFLAGS=-shared
4764         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4765         enabled shared && add_ldflags -Wl,-brtl
4766         ;;
4767     android)
4768         disable symver
4769         enable section_data_rel_ro
4770         SLIB_INSTALL_NAME='$(SLIBNAME)'
4771         SLIB_INSTALL_LINKS=
4772         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4773         ;;
4774     haiku)
4775         prefix_default="/boot/common"
4776         network_extralibs="-lnetwork"
4777         host_libs=
4778         ;;
4779     sunos)
4780         SHFLAGS='-shared -Wl,-h,$$(@F)'
4781         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4782         network_extralibs="-lsocket -lnsl"
4783         add_cppflags -D__EXTENSIONS__
4784         # When using suncc to build, the Solaris linker will mark
4785         # an executable with each instruction set encountered by
4786         # the Solaris assembler.  As our libraries contain their own
4787         # guards for processor-specific code, instead suppress
4788         # generation of the HWCAPS ELF section on Solaris x86 only.
4789         enabled_all suncc x86 &&
4790             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4791             add_ldflags -Wl,-M,mapfile
4792         nm_default='nm -P -g'
4793         version_script='-M'
4794         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4795         ;;
4796     netbsd)
4797         disable symver
4798         oss_indev_extralibs="-lossaudio"
4799         oss_outdev_extralibs="-lossaudio"
4800         enabled gcc || check_ldflags -Wl,-zmuldefs
4801         ;;
4802     openbsd|bitrig)
4803         disable symver
4804         SHFLAGS='-shared'
4805         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4806         SLIB_INSTALL_LINKS=
4807         oss_indev_extralibs="-lossaudio"
4808         oss_outdev_extralibs="-lossaudio"
4809         ;;
4810     dragonfly)
4811         disable symver
4812         ;;
4813     freebsd)
4814         ;;
4815     bsd/os)
4816         add_extralibs -lpoll -lgnugetopt
4817         strip="strip -d"
4818         ;;
4819     darwin)
4820         enabled ppc && add_asflags -force_cpusubtype_ALL
4821         install_name_dir_default='$(SHLIBDIR)'
4822         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4823         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4824         strip="${strip} -x"
4825         add_ldflags -Wl,-dynamic,-search_paths_first
4826         SLIBSUF=".dylib"
4827         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4828         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4829         objformat="macho"
4830         enabled x86_64 && objformat="macho64"
4831         enabled_any pic shared x86_64 ||
4832             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4833         check_header dispatch/dispatch.h &&
4834             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4835         version_script='-exported_symbols_list'
4836         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4837         ;;
4838     msys*)
4839         die "Native MSYS builds are discouraged, please use the MINGW environment."
4840         ;;
4841     mingw32*|mingw64*)
4842         if test $target_os = "mingw32ce"; then
4843             disable network
4844         else
4845             target_os=mingw32
4846         fi
4847         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4848         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4849         LIBTARGET=i386
4850         if enabled x86_64; then
4851             LIBTARGET="i386:x86-64"
4852         elif enabled arm; then
4853             LIBTARGET=arm-wince
4854         fi
4855         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4856         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4857         shlibdir_default="$bindir_default"
4858         SLIBPREF=""
4859         SLIBSUF=".dll"
4860         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4861         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4862         dlltool="${cross_prefix}dlltool"
4863         if check_cmd lib.exe -list; then
4864             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4865             if enabled x86_64; then
4866                 LIBTARGET=x64
4867             fi
4868         elif check_cmd $dlltool --version; then
4869             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4870         fi
4871         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4872         SLIB_INSTALL_LINKS=
4873         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4874         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4875         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4876         objformat="win32"
4877         ranlib=:
4878         enable dos_paths
4879         check_ldflags -Wl,--nxcompat,--dynamicbase
4880         # Lets work around some stupidity in binutils.
4881         # ld will strip relocations from executables even though we need them
4882         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4883         # however ld then forgets what the entry point should be (oops) so we
4884         # have to manually (re)set it.
4885         if enabled x86_32; then
4886             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4887         elif enabled x86_64; then
4888             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4889             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4890             # Set image base >4GB for extra entropy with HEASLR
4891             add_ldexeflags -Wl,--image-base,0x140000000
4892             append SHFLAGS -Wl,--image-base,0x180000000
4893         fi
4894         ;;
4895     win32|win64)
4896         disable symver
4897         if enabled shared; then