configure: Fix decklink license dependency.
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112   --enable-raise-major     increase major version numbers in sonames [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188
189 External library support:
190
191   Using any of the following switches will allow FFmpeg to link to the
192   corresponding external library. All the components depending on that library
193   will become enabled, if all their other dependencies are met and they are not
194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
195   libwavpack and allow the libwavpack encoder to be built, unless it is
196   specifically disabled with --disable-encoder=libwavpack.
197
198   Note that only the system libraries are auto-detected. All the other external
199   libraries must be explicitly enabled.
200
201   Also note that the following help text describes the purpose of the libraries
202   themselves, not all their features will necessarily be usable by FFmpeg.
203
204   --enable-avisynth        enable reading of AviSynth script files [no]
205   --disable-bzlib          disable bzlib [autodetect]
206   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
207   --enable-frei0r          enable frei0r video filtering [no]
208   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
209                            if openssl, librtmp or gmp is not used [no]
210   --enable-gmp             enable gmp, needed for rtmp(t)e support
211                            if openssl or librtmp is not used [no]
212   --enable-gnutls          enable gnutls, needed for https support
213                            if openssl is not used [no]
214   --disable-iconv          disable iconv [autodetect]
215   --enable-jni             enable JNI support [no]
216   --enable-ladspa          enable LADSPA audio filtering [no]
217   --enable-libass          enable libass subtitles rendering,
218                            needed for subtitles and ass filter [no]
219   --enable-libbluray       enable BluRay reading using libbluray [no]
220   --enable-libbs2b         enable bs2b DSP library [no]
221   --enable-libcaca         enable textual display using libcaca [no]
222   --enable-libcelt         enable CELT decoding via libcelt [no]
223   --enable-libcdio         enable audio CD grabbing with libcdio [no]
224   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
225                            and libraw1394 [no]
226   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
227   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
228   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
229   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
230   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
231   --enable-libgme          enable Game Music Emu via libgme [no]
232   --enable-libgsm          enable GSM de/encoding via libgsm [no]
233   --enable-libiec61883     enable iec61883 via libiec61883 [no]
234   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
235   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
236   --enable-libmodplug      enable ModPlug via libmodplug [no]
237   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
238   --enable-libnut          enable NUT (de)muxing via libnut,
239                            native (de)muxer exists [no]
240   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
241   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
242   --enable-libopencv       enable video filtering via libopencv [no]
243   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
244   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
245   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
246   --enable-libopus         enable Opus de/encoding via libopus [no]
247   --enable-libpulse        enable Pulseaudio input via libpulse [no]
248   --enable-librubberband   enable rubberband needed for rubberband filter [no]
249   --enable-librtmp         enable RTMP[E] support via librtmp [no]
250   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
251   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
252   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
253   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
254   --enable-libsoxr         enable Include libsoxr resampling [no]
255   --enable-libspeex        enable Speex de/encoding via libspeex [no]
256   --enable-libssh          enable SFTP protocol via libssh [no]
257   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
258   --enable-libtheora       enable Theora encoding via libtheora [no]
259   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
260   --enable-libv4l2         enable libv4l2/v4l-utils [no]
261   --enable-libvidstab      enable video stabilization using vid.stab [no]
262   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
263   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
264                            native implementation exists [no]
265   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
266   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
267   --enable-libwebp         enable WebP encoding via libwebp [no]
268   --enable-libx264         enable H.264 encoding via x264 [no]
269   --enable-libx265         enable HEVC encoding via x265 [no]
270   --enable-libxavs         enable AVS encoding via xavs [no]
271   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
272   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
273   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
274   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
275   --enable-libxvid         enable Xvid encoding via xvidcore,
276                            native MPEG-4/Xvid encoder exists [no]
277   --enable-libzimg         enable z.lib, needed for zscale filter [no]
278   --enable-libzmq          enable message passing via libzmq [no]
279   --enable-libzvbi         enable teletext support via libzvbi [no]
280   --disable-lzma           disable lzma [autodetect]
281   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
282   --enable-mediacodec      enable Android MediaCodec support [no]
283   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl2           disable sdl2 [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --disable-xlib           disable xlib [autodetect]
295   --disable-zlib           disable zlib [autodetect]
296
297   The following libraries provide various hardware acceleration features:
298   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
299   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
300   --disable-cuvid          disable Nvidia CUVID support [autodetect]
301   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
302   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
303   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
304   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
305   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
306   --disable-nvenc          disable Nvidia video encoding code [autodetect]
307   --enable-omx             enable OpenMAX IL code [no]
308   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
309   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
310   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
311   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
312   --disable-videotoolbox   disable VideoToolbox code [autodetect]
313
314 Toolchain options:
315   --arch=ARCH              select architecture [$arch]
316   --cpu=CPU                select the minimum required CPU (affects
317                            instruction selection, may crash on older CPUs)
318   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
319   --progs-suffix=SUFFIX    program name suffix []
320   --enable-cross-compile   assume a cross-compiler is used
321   --sysroot=PATH           root of cross-build tree
322   --sysinclude=PATH        location of cross-build system headers
323   --target-os=OS           compiler targets OS [$target_os]
324   --target-exec=CMD        command to run executables on target
325   --target-path=DIR        path to view of build directory on target
326   --target-samples=DIR     path to samples directory on target
327   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
328   --toolchain=NAME         set tool defaults according to NAME
329   --nm=NM                  use nm tool NM [$nm_default]
330   --ar=AR                  use archive tool AR [$ar_default]
331   --as=AS                  use assembler AS [$as_default]
332   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
333   --strip=STRIP            use strip tool STRIP [$strip_default]
334   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
335   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
336   --cc=CC                  use C compiler CC [$cc_default]
337   --cxx=CXX                use C compiler CXX [$cxx_default]
338   --objcc=OCC              use ObjC compiler OCC [$cc_default]
339   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
340   --ld=LD                  use linker LD [$ld_default]
341   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
342   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
343   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
344   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
345   --host-cc=HOSTCC         use host C compiler HOSTCC
346   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
347   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
348   --host-ld=HOSTLD         use host linker HOSTLD
349   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
350   --host-libs=HLIBS        use libs HLIBS when linking for host
351   --host-os=OS             compiler host OS [$target_os]
352   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
353   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
354   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
355   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
356   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
357   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
358   --extra-libs=ELIBS       add ELIBS [$ELIBS]
359   --extra-version=STRING   version string suffix []
360   --optflags=OPTFLAGS      override optimization-related compiler flags
361   --build-suffix=SUFFIX    library name suffix []
362   --enable-pic             build position-independent code
363   --enable-thumb           compile for Thumb instruction set
364   --enable-lto             use link-time optimization
365   --env="ENV=override"     override the environment variables
366
367 Advanced options (experts only):
368   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
369   --custom-allocator=NAME  use a supported custom allocator
370   --disable-symver         disable symbol versioning
371   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
372   --disable-safe-bitstream-reader
373                            disable buffer boundary checking in bitreaders
374                            (faster, but may crash)
375   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
376
377 Optimization options (experts only):
378   --disable-asm            disable all assembly optimizations
379   --disable-altivec        disable AltiVec optimizations
380   --disable-vsx            disable VSX optimizations
381   --disable-power8         disable POWER8 optimizations
382   --disable-amd3dnow       disable 3DNow! optimizations
383   --disable-amd3dnowext    disable 3DNow! extended optimizations
384   --disable-mmx            disable MMX optimizations
385   --disable-mmxext         disable MMXEXT optimizations
386   --disable-sse            disable SSE optimizations
387   --disable-sse2           disable SSE2 optimizations
388   --disable-sse3           disable SSE3 optimizations
389   --disable-ssse3          disable SSSE3 optimizations
390   --disable-sse4           disable SSE4 optimizations
391   --disable-sse42          disable SSE4.2 optimizations
392   --disable-avx            disable AVX optimizations
393   --disable-xop            disable XOP optimizations
394   --disable-fma3           disable FMA3 optimizations
395   --disable-fma4           disable FMA4 optimizations
396   --disable-avx2           disable AVX2 optimizations
397   --disable-aesni          disable AESNI optimizations
398   --disable-armv5te        disable armv5te optimizations
399   --disable-armv6          disable armv6 optimizations
400   --disable-armv6t2        disable armv6t2 optimizations
401   --disable-vfp            disable VFP optimizations
402   --disable-neon           disable NEON optimizations
403   --disable-inline-asm     disable use of inline assembly
404   --disable-yasm           disable use of nasm/yasm assembly
405   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
406   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
407   --disable-msa            disable MSA optimizations
408   --disable-mipsfpu        disable floating point MIPS optimizations
409   --disable-mmi            disable Loongson SIMD optimizations
410   --disable-fast-unaligned consider unaligned accesses slow
411
412 Developer options (useful when working on FFmpeg itself):
413   --disable-debug          disable debugging symbols
414   --enable-debug=LEVEL     set the debug level [$debuglevel]
415   --disable-optimizations  disable compiler optimizations
416   --enable-extra-warnings  enable more compiler warnings
417   --disable-stripping      disable stripping of executables and shared libraries
418   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
419                            2 causes a slowdown at runtime.
420   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
421   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
422                            leaks and errors, using the specified valgrind binary.
423                            Cannot be combined with --target-exec
424   --enable-ftrapv          Trap arithmetic overflows
425   --samples=PATH           location of test samples for FATE, if not set use
426                            \$FATE_SAMPLES at make invocation time.
427   --enable-neon-clobber-test check NEON registers for clobbering (should be
428                            used only for debugging purposes)
429   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
430                            should be used only for debugging purposes)
431   --enable-random          randomly enable/disable components
432   --disable-random
433   --enable-random=LIST     randomly enable/disable specific components or
434   --disable-random=LIST    component groups. LIST is a comma-separated list
435                            of NAME[:PROB] entries where NAME is a component
436                            (group) and PROB the probability associated with
437                            NAME (default 0.5).
438   --random-seed=VALUE      seed value for --enable/disable-random
439   --disable-valgrind-backtrace do not print a backtrace under Valgrind
440                            (only applies to --disable-optimizations builds)
441
442 NOTE: Object files are built at the place where configure is launched.
443 EOF
444   exit 0
445 }
446
447 quotes='""'
448 if test -t 1 && which tput >/dev/null 2>&1; then
449     ncolors=$(tput colors)
450     if test -n "$ncolors" && test $ncolors -ge 8; then
451         bold_color=$(tput bold)
452         warn_color=$(tput setaf 3)
453         error_color=$(tput setaf 1)
454         reset_color=$(tput sgr0)
455     fi
456     # 72 used instead of 80 since that's the default of pr
457     ncols=$(tput cols)
458 fi
459 : ${ncols:=72}
460
461 log(){
462     echo "$@" >> $logfile
463 }
464
465 log_file(){
466     log BEGIN $1
467     pr -n -t $1 >> $logfile
468     log END $1
469 }
470
471 warn(){
472     log "WARNING: $*"
473     WARNINGS="${WARNINGS}WARNING: $*\n"
474 }
475
476 die(){
477     log "$@"
478     echo "$error_color$bold_color$@$reset_color"
479     cat <<EOF
480
481 If you think configure made a mistake, make sure you are using the latest
482 version from Git.  If the latest version fails, report the problem to the
483 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
484 EOF
485     if disabled logging; then
486         cat <<EOF
487 Rerun configure with logging enabled (do not use --disable-logging), and
488 include the log this produces with your report.
489 EOF
490     else
491         cat <<EOF
492 Include the log file "$logfile" produced by configure as this will help
493 solve the problem.
494 EOF
495     fi
496     exit 1
497 }
498
499 # Avoid locale weirdness, besides we really just want to translate ASCII.
500 toupper(){
501     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
502 }
503
504 tolower(){
505     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
506 }
507
508 c_escape(){
509     echo "$*" | sed 's/["\\]/\\\0/g'
510 }
511
512 sh_quote(){
513     v=$(echo "$1" | sed "s/'/'\\\\''/g")
514     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
515     echo "$v"
516 }
517
518 cleanws(){
519     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
520 }
521
522 filter(){
523     pat=$1
524     shift
525     for v; do
526         eval "case $v in $pat) printf '%s ' $v ;; esac"
527     done
528 }
529
530 filter_out(){
531     pat=$1
532     shift
533     for v; do
534         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
535     done
536 }
537
538 map(){
539     m=$1
540     shift
541     for v; do eval $m; done
542 }
543
544 add_suffix(){
545     suffix=$1
546     shift
547     for v; do echo ${v}${suffix}; done
548 }
549
550 set_all(){
551     value=$1
552     shift
553     for var in $*; do
554         eval $var=$value
555     done
556 }
557
558 set_weak(){
559     value=$1
560     shift
561     for var; do
562         eval : \${$var:=$value}
563     done
564 }
565
566 sanitize_var_name(){
567     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
568 }
569
570 set_safe(){
571     var=$1
572     shift
573     eval $(sanitize_var_name "$var")='$*'
574 }
575
576 get_safe(){
577     eval echo \$$(sanitize_var_name "$1")
578 }
579
580 pushvar(){
581     for pvar in $*; do
582         eval level=\${${pvar}_level:=0}
583         eval ${pvar}_${level}="\$$pvar"
584         eval ${pvar}_level=$(($level+1))
585     done
586 }
587
588 popvar(){
589     for pvar in $*; do
590         eval level=\${${pvar}_level:-0}
591         test $level = 0 && continue
592         eval level=$(($level-1))
593         eval $pvar="\${${pvar}_${level}}"
594         eval ${pvar}_level=$level
595         eval unset ${pvar}_${level}
596     done
597 }
598
599 request(){
600     for var in $*; do
601         eval ${var}_requested=yes
602         eval $var=
603     done
604 }
605
606 enable(){
607     set_all yes $*
608 }
609
610 disable(){
611     set_all no $*
612 }
613
614 enable_weak(){
615     set_weak yes $*
616 }
617
618 disable_weak(){
619     set_weak no $*
620 }
621
622 enable_safe(){
623     for var; do
624         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
625     done
626 }
627
628 disable_safe(){
629     for var; do
630         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
631     done
632 }
633
634 do_enable_deep(){
635     for var; do
636         enabled $var && continue
637         eval sel="\$${var}_select"
638         eval sgs="\$${var}_suggest"
639         pushvar var sgs
640         enable_deep $sel
641         popvar sgs
642         enable_deep_weak $sgs
643         popvar var
644     done
645 }
646
647 enable_deep(){
648     do_enable_deep $*
649     enable $*
650 }
651
652 enable_deep_weak(){
653     for var; do
654         disabled $var && continue
655         pushvar var
656         do_enable_deep $var
657         popvar var
658         enable_weak $var
659     done
660 }
661
662 requested(){
663     test "${1#!}" = "$1" && op='=' || op=!=
664     eval test "x\$${1#!}_requested" $op "xyes"
665 }
666
667 enabled(){
668     test "${1#!}" = "$1" && op='=' || op=!=
669     eval test "x\$${1#!}" $op "xyes"
670 }
671
672 disabled(){
673     test "${1#!}" = "$1" && op='=' || op=!=
674     eval test "x\$${1#!}" $op "xno"
675 }
676
677 enabled_all(){
678     for opt; do
679         enabled $opt || return 1
680     done
681 }
682
683 disabled_all(){
684     for opt; do
685         disabled $opt || return 1
686     done
687 }
688
689 enabled_any(){
690     for opt; do
691         enabled $opt && return 0
692     done
693 }
694
695 disabled_any(){
696     for opt; do
697         disabled $opt && return 0
698     done
699     return 1
700 }
701
702 set_default(){
703     for opt; do
704         eval : \${$opt:=\$${opt}_default}
705     done
706 }
707
708 is_in(){
709     value=$1
710     shift
711     for var in $*; do
712         [ $var = $value ] && return 0
713     done
714     return 1
715 }
716
717 do_check_deps(){
718     for cfg; do
719         cfg="${cfg#!}"
720         enabled ${cfg}_checking && die "Circular dependency for $cfg."
721         disabled ${cfg}_checking && continue
722         enable ${cfg}_checking
723         append allopts $cfg
724
725         eval dep_all="\$${cfg}_deps"
726         eval dep_any="\$${cfg}_deps_any"
727         eval dep_sel="\$${cfg}_select"
728         eval dep_sgs="\$${cfg}_suggest"
729         eval dep_ifa="\$${cfg}_if"
730         eval dep_ifn="\$${cfg}_if_any"
731
732         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
733         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
734         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
735
736         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
737         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
738         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
739         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
740         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
741
742         if enabled $cfg; then
743             enable_deep $dep_sel
744             enable_deep_weak $dep_sgs
745         fi
746
747         disable ${cfg}_checking
748     done
749 }
750
751 check_deps(){
752     unset allopts
753
754     do_check_deps "$@"
755
756     for cfg in $allopts; do
757         enabled $cfg || continue
758         eval dep_extralibs="\$${cfg}_extralibs"
759         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
760     done
761 }
762
763 print_config(){
764     pfx=$1
765     files=$2
766     shift 2
767     map 'eval echo "$v \${$v:-no}"' "$@" |
768     awk "BEGIN { split(\"$files\", files) }
769         {
770             c = \"$pfx\" toupper(\$1);
771             v = \$2;
772             sub(/yes/, 1, v);
773             sub(/no/,  0, v);
774             for (f in files) {
775                 file = files[f];
776                 if (file ~ /\\.h\$/) {
777                     printf(\"#define %s %d\\n\", c, v) >>file;
778                 } else if (file ~ /\\.asm\$/) {
779                     printf(\"%%define %s %d\\n\", c, v) >>file;
780                 } else if (file ~ /\\.mak\$/) {
781                     n = -v ? \"\" : \"!\";
782                     printf(\"%s%s=yes\\n\", n, c) >>file;
783                 } else if (file ~ /\\.texi\$/) {
784                     pre = -v ? \"\" : \"@c \";
785                     yesno = \$2;
786                     c2 = tolower(c);
787                     gsub(/_/, \"-\", c2);
788                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
789                 }
790             }
791         }"
792 }
793
794 print_enabled(){
795     suf=$1
796     shift
797     for v; do
798         enabled $v && printf "%s\n" ${v%$suf}
799     done
800 }
801
802 append(){
803     var=$1
804     shift
805     eval "$var=\"\$$var $*\""
806 }
807
808 prepend(){
809     var=$1
810     shift
811     eval "$var=\"$* \$$var\""
812 }
813
814 unique(){
815     var=$1
816     uniq_list=""
817     for tok in $(eval echo \$$var); do
818         uniq_list="$(filter_out $tok $uniq_list) $tok"
819     done
820     eval "$var=\"${uniq_list}\""
821 }
822
823 add_cppflags(){
824     append CPPFLAGS "$@"
825 }
826
827 add_cflags(){
828     append CFLAGS $($cflags_filter "$@")
829 }
830
831 add_cxxflags(){
832     append CXXFLAGS $($cflags_filter "$@")
833 }
834
835 add_asflags(){
836     append ASFLAGS $($asflags_filter "$@")
837 }
838
839 add_objcflags(){
840     append OBJCFLAGS $($objcflags_filter "$@")
841 }
842
843 add_ldflags(){
844     append LDFLAGS $($ldflags_filter "$@")
845 }
846
847 add_ldexeflags(){
848     append LDEXEFLAGS $($ldflags_filter "$@")
849 }
850
851 add_ldlibflags(){
852     append LDLIBFLAGS $($ldflags_filter "$@")
853 }
854
855 add_stripflags(){
856     append ASMSTRIPFLAGS "$@"
857 }
858
859 add_extralibs(){
860     prepend extralibs $($ldflags_filter "$@")
861 }
862
863 add_host_cppflags(){
864     append host_cppflags "$@"
865 }
866
867 add_host_cflags(){
868     append host_cflags $($host_cflags_filter "$@")
869 }
870
871 add_host_ldflags(){
872     append host_ldflags $($host_ldflags_filter "$@")
873 }
874
875 add_compat(){
876     append compat_objs $1
877     shift
878     map 'add_cppflags -D$v' "$@"
879 }
880
881 check_cmd(){
882     log "$@"
883     "$@" >> $logfile 2>&1
884 }
885
886 check_stat(){
887     log check_stat "$@"
888     stat "$1" >> $logfile 2>&1
889 }
890
891 cc_o(){
892     eval printf '%s\\n' $CC_O
893 }
894
895 cc_e(){
896     eval printf '%s\\n' $CC_E
897 }
898
899 check_cc(){
900     log check_cc "$@"
901     cat > $TMPC
902     log_file $TMPC
903     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
904 }
905
906 check_cxx(){
907     log check_cxx "$@"
908     cat > $TMPCPP
909     log_file $TMPCPP
910     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
911 }
912
913 check_objcc(){
914     log check_objcc "$@"
915     cat > $TMPM
916     log_file $TMPM
917     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
918 }
919
920 check_cpp(){
921     log check_cpp "$@"
922     cat > $TMPC
923     log_file $TMPC
924     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
925 }
926
927 as_o(){
928     eval printf '%s\\n' $AS_O
929 }
930
931 check_as(){
932     log check_as "$@"
933     cat > $TMPS
934     log_file $TMPS
935     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
936 }
937
938 check_inline_asm(){
939     log check_inline_asm "$@"
940     name="$1"
941     code="$2"
942     shift 2
943     disable $name
944     check_cc "$@" <<EOF && enable $name
945 void foo(void){ __asm__ volatile($code); }
946 EOF
947 }
948
949 check_inline_asm_flags(){
950     log check_inline_asm_flags "$@"
951     name="$1"
952     code="$2"
953     flags=''
954     shift 2
955     while [ "$1" != "" ]; do
956       append flags $1
957       shift
958     done;
959     disable $name
960     cat > $TMPC <<EOF
961 void foo(void){ __asm__ volatile($code); }
962 EOF
963     log_file $TMPC
964     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
965     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
966 }
967
968 check_insn(){
969     log check_insn "$@"
970     check_inline_asm ${1}_inline "\"$2\""
971     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
972 }
973
974 check_yasm(){
975     log check_yasm "$@"
976     echo "$1" > $TMPS
977     log_file $TMPS
978     shift 1
979     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
980 }
981
982 ld_o(){
983     eval printf '%s\\n' $LD_O
984 }
985
986 check_ld(){
987     log check_ld "$@"
988     type=$1
989     shift 1
990     flags=$(filter_out '-l*|*.so' $@)
991     libs=$(filter '-l*|*.so' $@)
992     check_$type $($cflags_filter $flags) || return
993     flags=$($ldflags_filter $flags)
994     libs=$($ldflags_filter $libs)
995     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
996 }
997
998 print_include(){
999     hdr=$1
1000     test "${hdr%.h}" = "${hdr}" &&
1001         echo "#include $hdr"    ||
1002         echo "#include <$hdr>"
1003 }
1004
1005 check_code(){
1006     log check_code "$@"
1007     check=$1
1008     headers=$2
1009     code=$3
1010     shift 3
1011     {
1012         for hdr in $headers; do
1013             print_include $hdr
1014         done
1015         echo "int main(void) { $code; return 0; }"
1016     } | check_$check "$@"
1017 }
1018
1019 check_cppflags(){
1020     log check_cppflags "$@"
1021     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1022 int x;
1023 EOF
1024 }
1025
1026 test_cflags(){
1027     log test_cflags "$@"
1028     set -- $($cflags_filter "$@")
1029     check_cc "$@" <<EOF
1030 int x;
1031 EOF
1032 }
1033
1034 check_cflags(){
1035     log check_cflags "$@"
1036     test_cflags "$@" && add_cflags "$@"
1037 }
1038
1039 check_cxxflags(){
1040     log check_cxxflags "$@"
1041     set -- $($cflags_filter "$@")
1042     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 test_objcflags(){
1048     log test_objcflags "$@"
1049     set -- $($objcflags_filter "$@")
1050     check_objcc "$@" <<EOF
1051 int x;
1052 EOF
1053 }
1054
1055 check_objcflags(){
1056     log check_objcflags "$@"
1057     test_objcflags "$@" && add_objcflags "$@"
1058 }
1059
1060 test_ldflags(){
1061     log test_ldflags "$@"
1062     check_ld "cc" "$@" <<EOF
1063 int main(void){ return 0; }
1064 EOF
1065 }
1066
1067 check_ldflags(){
1068     log check_ldflags "$@"
1069     test_ldflags "$@" && add_ldflags "$@"
1070 }
1071
1072 test_stripflags(){
1073     log test_stripflags "$@"
1074     # call check_cc to get a fresh TMPO
1075     check_cc <<EOF
1076 int main(void) { return 0; }
1077 EOF
1078     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1079 }
1080
1081 check_stripflags(){
1082     log check_stripflags "$@"
1083     test_stripflags "$@" && add_stripflags "$@"
1084 }
1085
1086 check_header(){
1087     log check_header "$@"
1088     header=$1
1089     shift
1090     disable_safe $header
1091     check_cpp "$@" <<EOF && enable_safe $header
1092 #include <$header>
1093 int x;
1094 EOF
1095 }
1096
1097 check_header_objcc(){
1098     log check_header_objcc "$@"
1099     rm -f -- "$TMPO"
1100     header=$1
1101     shift
1102     disable_safe $header
1103     {
1104        echo "#include <$header>"
1105        echo "int main(void) { return 0; }"
1106     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1107 }
1108
1109 check_func(){
1110     log check_func "$@"
1111     func=$1
1112     shift
1113     disable $func
1114     check_ld "cc" "$@" <<EOF && enable $func
1115 extern int $func();
1116 int main(void){ $func(); }
1117 EOF
1118 }
1119
1120 check_complexfunc(){
1121     log check_complexfunc "$@"
1122     func=$1
1123     narg=$2
1124     shift 2
1125     test $narg = 2 && args="f, g" || args="f * I"
1126     disable $func
1127     check_ld "cc" "$@" <<EOF && enable $func
1128 #include <complex.h>
1129 #include <math.h>
1130 float foo(complex float f, complex float g) { return $func($args); }
1131 int main(void){ return (int) foo; }
1132 EOF
1133 }
1134
1135 check_mathfunc(){
1136     log check_mathfunc "$@"
1137     func=$1
1138     narg=$2
1139     shift 2
1140     test $narg = 2 && args="f, g" || args="f"
1141     disable $func
1142     check_ld "cc" "$@" <<EOF && enable $func
1143 #include <math.h>
1144 float foo(float f, float g) { return $func($args); }
1145 int main(void){ return (int) foo; }
1146 EOF
1147 }
1148
1149 check_func_headers(){
1150     log check_func_headers "$@"
1151     headers=$1
1152     funcs=$2
1153     shift 2
1154     {
1155         for hdr in $headers; do
1156             print_include $hdr
1157         done
1158         echo "#include <stdint.h>"
1159         for func in $funcs; do
1160             echo "long check_$func(void) { return (long) $func; }"
1161         done
1162         echo "int main(void) { int ret = 0;"
1163         # LTO could optimize out the test functions without this
1164         for func in $funcs; do
1165             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1166         done
1167         echo "return ret; }"
1168     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1169 }
1170
1171 check_class_headers_cpp(){
1172     log check_class_headers_cpp "$@"
1173     headers=$1
1174     classes=$2
1175     shift 2
1176     {
1177         for hdr in $headers; do
1178             echo "#include <$hdr>"
1179         done
1180         echo "int main(void) { "
1181         i=1
1182         for class in $classes; do
1183             echo "$class obj$i;"
1184             i=$(expr $i + 1)
1185         done
1186         echo "return 0; }"
1187     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1188 }
1189
1190 check_cpp_condition(){
1191     log check_cpp_condition "$@"
1192     header=$1
1193     condition=$2
1194     shift 2
1195     check_cpp "$@" <<EOF
1196 #include <$header>
1197 #if !($condition)
1198 #error "unsatisfied condition: $condition"
1199 #endif
1200 EOF
1201 }
1202
1203 test_cflags_cc(){
1204     log test_cflags_cc "$@"
1205     flags=$1
1206     header=$2
1207     condition=$3
1208     shift 3
1209     set -- $($cflags_filter "$flags")
1210     check_cc "$@" <<EOF
1211 #include <$header>
1212 #if !($condition)
1213 #error "unsatisfied condition: $condition"
1214 #endif
1215 EOF
1216 }
1217
1218 check_lib(){
1219     log check_lib "$@"
1220     headers="$1"
1221     funcs="$2"
1222     shift 2
1223     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1224 }
1225
1226 check_lib_cpp(){
1227     log check_lib_cpp "$@"
1228     headers="$1"
1229     classes="$2"
1230     shift 2
1231     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1232 }
1233
1234 check_pkg_config(){
1235     log check_pkg_config "$@"
1236     pkg_version="$1"
1237     pkg="${1%% *}"
1238     headers="$2"
1239     funcs="$3"
1240     shift 3
1241     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1242     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1243     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1244     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1245         set_safe "${pkg}_cflags" $pkg_cflags   &&
1246         set_safe "${pkg}_libs"   $pkg_libs
1247 }
1248
1249 check_exec(){
1250     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1251 }
1252
1253 check_exec_crash(){
1254     log check_exec_crash "$@"
1255     code=$(cat)
1256
1257     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1258     # are safe but may not be available everywhere.  Thus we use
1259     # raise(SIGTERM) instead.  The check is run in a subshell so we
1260     # can redirect the "Terminated" message from the shell.  SIGBUS
1261     # is not defined by standard C so it is used conditionally.
1262
1263     (check_exec "$@") >> $logfile 2>&1 <<EOF
1264 #include <signal.h>
1265 static void sighandler(int sig){
1266     raise(SIGTERM);
1267 }
1268 int foo(void){
1269     $code
1270 }
1271 int (*func_ptr)(void) = foo;
1272 int main(void){
1273     signal(SIGILL, sighandler);
1274     signal(SIGFPE, sighandler);
1275     signal(SIGSEGV, sighandler);
1276 #ifdef SIGBUS
1277     signal(SIGBUS, sighandler);
1278 #endif
1279     return func_ptr();
1280 }
1281 EOF
1282 }
1283
1284 check_type(){
1285     log check_type "$@"
1286     headers=$1
1287     type=$2
1288     shift 2
1289     disable_safe "$type"
1290     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1291 }
1292
1293 check_struct(){
1294     log check_struct "$@"
1295     headers=$1
1296     struct=$2
1297     member=$3
1298     shift 3
1299     disable_safe "${struct}_${member}"
1300     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1301         enable_safe "${struct}_${member}"
1302 }
1303
1304 check_builtin(){
1305     log check_builtin "$@"
1306     name=$1
1307     headers=$2
1308     builtin=$3
1309     shift 3
1310     disable "$name"
1311     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1312 }
1313
1314 check_compile_assert(){
1315     log check_compile_assert "$@"
1316     name=$1
1317     headers=$2
1318     condition=$3
1319     shift 3
1320     disable "$name"
1321     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1322 }
1323
1324 require(){
1325     log require "$@"
1326     name_version="$1"
1327     headers="$2"
1328     func="$3"
1329     shift 3
1330     check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1331 }
1332
1333 require_cpp(){
1334     name="$1"
1335     headers="$2"
1336     classes="$3"
1337     shift 3
1338     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1339 }
1340
1341 use_pkg_config(){
1342     log use_pkg_config "$@"
1343     pkg="$1"
1344     check_pkg_config "$@" || return 1
1345     add_cflags    $(get_safe "${pkg}_cflags")
1346     add_extralibs $(get_safe "${pkg}_libs")
1347 }
1348
1349 require_pkg_config(){
1350     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1351 }
1352
1353 require_libfreetype(){
1354     log require_libfreetype "$@"
1355     pkg="freetype2"
1356     check_cmd $pkg_config --exists --print-errors $pkg \
1357       || die "ERROR: $pkg not found"
1358     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1359     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1360     {
1361         echo "#include <ft2build.h>"
1362         echo "#include FT_FREETYPE_H"
1363         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1364         echo "int main(void) { return 0; }"
1365     } | check_ld "cc" $pkg_cflags $pkg_libs \
1366       && set_safe "${pkg}_cflags" $pkg_cflags \
1367       && set_safe "${pkg}_libs"   $pkg_libs \
1368       || die "ERROR: $pkg not found"
1369     add_cflags    $(get_safe "${pkg}_cflags")
1370     add_extralibs $(get_safe "${pkg}_libs")
1371 }
1372
1373 hostcc_e(){
1374     eval printf '%s\\n' $HOSTCC_E
1375 }
1376
1377 hostcc_o(){
1378     eval printf '%s\\n' $HOSTCC_O
1379 }
1380
1381 check_host_cc(){
1382     log check_host_cc "$@"
1383     cat > $TMPC
1384     log_file $TMPC
1385     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1386 }
1387
1388 check_host_cpp(){
1389     log check_host_cpp "$@"
1390     cat > $TMPC
1391     log_file $TMPC
1392     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1393 }
1394
1395 check_host_cppflags(){
1396     log check_host_cppflags "$@"
1397     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1398 int x;
1399 EOF
1400 }
1401
1402 check_host_cflags(){
1403     log check_host_cflags "$@"
1404     set -- $($host_cflags_filter "$@")
1405     check_host_cc "$@" <<EOF && append host_cflags "$@"
1406 int x;
1407 EOF
1408 }
1409
1410 check_host_cpp_condition(){
1411     log check_host_cpp_condition "$@"
1412     header=$1
1413     condition=$2
1414     shift 2
1415     check_host_cpp "$@" <<EOF
1416 #include <$header>
1417 #if !($condition)
1418 #error "unsatisfied condition: $condition"
1419 #endif
1420 EOF
1421 }
1422
1423 cp_if_changed(){
1424     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1425     mkdir -p "$(dirname $2)"
1426     cp -f "$1" "$2"
1427 }
1428
1429 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1430 # system-dependent things.
1431
1432 AVCODEC_COMPONENTS="
1433     bsfs
1434     decoders
1435     encoders
1436     hwaccels
1437     parsers
1438 "
1439
1440 AVDEVICE_COMPONENTS="
1441     indevs
1442     outdevs
1443 "
1444 AVFILTER_COMPONENTS="
1445     filters
1446 "
1447 AVFORMAT_COMPONENTS="
1448     demuxers
1449     muxers
1450     protocols
1451 "
1452
1453 AVRESAMPLE_COMPONENTS=""
1454 AVUTIL_COMPONENTS=""
1455
1456 COMPONENT_LIST="
1457     $AVCODEC_COMPONENTS
1458     $AVDEVICE_COMPONENTS
1459     $AVFILTER_COMPONENTS
1460     $AVFORMAT_COMPONENTS
1461     $AVRESAMPLE_COMPONENTS
1462     $AVUTIL_COMPONENTS
1463 "
1464
1465 EXAMPLE_LIST="
1466     avio_dir_cmd_example
1467     avio_reading_example
1468     decode_audio_example
1469     decode_video_example
1470     demuxing_decoding_example
1471     encode_audio_example
1472     encode_video_example
1473     extract_mvs_example
1474     filter_audio_example
1475     filtering_audio_example
1476     filtering_video_example
1477     http_multiclient_example
1478     metadata_example
1479     muxing_example
1480     qsvdec_example
1481     remuxing_example
1482     resampling_audio_example
1483     scaling_video_example
1484     transcode_aac_example
1485     transcoding_example
1486 "
1487 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1488     bzlib
1489     iconv
1490     libxcb
1491     libxcb_shm
1492     libxcb_shape
1493     libxcb_xfixes
1494     lzma
1495     schannel
1496     sdl
1497     sdl2
1498     securetransport
1499     xlib
1500     zlib
1501 "
1502
1503 EXTERNAL_LIBRARY_GPL_LIST="
1504     avisynth
1505     frei0r
1506     libcdio
1507     librubberband
1508     libvidstab
1509     libx264
1510     libx265
1511     libxavs
1512     libxvid
1513 "
1514
1515 EXTERNAL_LIBRARY_NONFREE_LIST="
1516     decklink
1517     libfdk_aac
1518     openssl
1519 "
1520
1521 EXTERNAL_LIBRARY_VERSION3_LIST="
1522     gmp
1523     libopencore_amrnb
1524     libopencore_amrwb
1525     libvo_amrwbenc
1526 "
1527
1528 EXTERNAL_LIBRARY_GPLV3_LIST="
1529     libsmbclient
1530 "
1531
1532 EXTERNAL_LIBRARY_LIST="
1533     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1534     $EXTERNAL_LIBRARY_GPL_LIST
1535     $EXTERNAL_LIBRARY_NONFREE_LIST
1536     $EXTERNAL_LIBRARY_VERSION3_LIST
1537     $EXTERNAL_LIBRARY_GPLV3_LIST
1538     chromaprint
1539     crystalhd
1540     gcrypt
1541     gnutls
1542     jni
1543     ladspa
1544     libass
1545     libbluray
1546     libbs2b
1547     libcaca
1548     libcelt
1549     libdc1394
1550     libflite
1551     libfontconfig
1552     libfreetype
1553     libfribidi
1554     libgme
1555     libgsm
1556     libiec61883
1557     libilbc
1558     libkvazaar
1559     libmodplug
1560     libmp3lame
1561     libnut
1562     libopencv
1563     libopenh264
1564     libopenjpeg
1565     libopenmpt
1566     libopus
1567     libpulse
1568     librtmp
1569     libschroedinger
1570     libshine
1571     libsmbclient
1572     libsnappy
1573     libsoxr
1574     libspeex
1575     libssh
1576     libtesseract
1577     libtheora
1578     libtwolame
1579     libv4l2
1580     libvorbis
1581     libvpx
1582     libwavpack
1583     libwebp
1584     libzimg
1585     libzmq
1586     libzvbi
1587     mediacodec
1588     netcdf
1589     openal
1590     opencl
1591     opengl
1592     videotoolbox
1593 "
1594 HWACCEL_AUTODETECT_LIBRARY_LIST="
1595     audiotoolbox
1596     cuda
1597     cuvid
1598     d3d11va
1599     dxva2
1600     nvenc
1601     vaapi
1602     vda
1603     vdpau
1604     videotoolbox_hwaccel
1605     xvmc
1606 "
1607
1608 HWACCEL_LIBRARY_NONFREE_LIST="
1609     libnpp
1610 "
1611
1612 HWACCEL_LIBRARY_LIST="
1613     $HWACCEL_AUTODETECT_LIBRARY_LIST
1614     $HWACCEL_LIBRARY_NONFREE_LIST
1615     libmfx
1616     mmal
1617     omx
1618 "
1619
1620 DOCUMENT_LIST="
1621     doc
1622     htmlpages
1623     manpages
1624     podpages
1625     txtpages
1626 "
1627
1628 FEATURE_LIST="
1629     ftrapv
1630     gray
1631     hardcoded_tables
1632     omx_rpi
1633     runtime_cpudetect
1634     safe_bitstream_reader
1635     shared
1636     small
1637     static
1638     swscale_alpha
1639 "
1640
1641 LIBRARY_LIST="
1642     avcodec
1643     avdevice
1644     avfilter
1645     avformat
1646     avresample
1647     avutil
1648     postproc
1649     swresample
1650     swscale
1651 "
1652
1653 LICENSE_LIST="
1654     gpl
1655     nonfree
1656     version3
1657 "
1658
1659 PROGRAM_LIST="
1660     ffplay
1661     ffprobe
1662     ffserver
1663     ffmpeg
1664 "
1665
1666 SUBSYSTEM_LIST="
1667     dct
1668     dwt
1669     error_resilience
1670     faan
1671     fast_unaligned
1672     fft
1673     lsp
1674     lzo
1675     mdct
1676     pixelutils
1677     network
1678     rdft
1679 "
1680
1681 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1682 CONFIG_LIST="
1683     $DOCUMENT_LIST
1684     $EXAMPLE_LIST
1685     $EXTERNAL_LIBRARY_LIST
1686     $HWACCEL_LIBRARY_LIST
1687     $FEATURE_LIST
1688     $LICENSE_LIST
1689     $LIBRARY_LIST
1690     $PROGRAM_LIST
1691     $SUBSYSTEM_LIST
1692     fontconfig
1693     memory_poisoning
1694     neon_clobber_test
1695     pic
1696     raise_major
1697     thumb
1698     valgrind_backtrace
1699     xmm_clobber_test
1700     $COMPONENT_LIST
1701 "
1702
1703 THREADS_LIST="
1704     pthreads
1705     os2threads
1706     w32threads
1707 "
1708
1709 ATOMICS_LIST="
1710     atomics_gcc
1711     atomics_suncc
1712     atomics_win32
1713 "
1714
1715 AUTODETECT_LIBS="
1716     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1717     $HWACCEL_AUTODETECT_LIBRARY_LIST
1718     $THREADS_LIST
1719 "
1720
1721 ARCH_LIST="
1722     aarch64
1723     alpha
1724     arm
1725     avr32
1726     avr32_ap
1727     avr32_uc
1728     bfin
1729     ia64
1730     m68k
1731     mips
1732     mips64
1733     parisc
1734     ppc
1735     ppc64
1736     s390
1737     sh4
1738     sparc
1739     sparc64
1740     tilegx
1741     tilepro
1742     tomi
1743     x86
1744     x86_32
1745     x86_64
1746 "
1747
1748 ARCH_EXT_LIST_ARM="
1749     armv5te
1750     armv6
1751     armv6t2
1752     armv8
1753     neon
1754     vfp
1755     vfpv3
1756     setend
1757 "
1758
1759 ARCH_EXT_LIST_MIPS="
1760     mipsfpu
1761     mips32r2
1762     mips32r5
1763     mips64r2
1764     mips32r6
1765     mips64r6
1766     mipsdsp
1767     mipsdspr2
1768     msa
1769 "
1770
1771 ARCH_EXT_LIST_LOONGSON="
1772     loongson2
1773     loongson3
1774     mmi
1775 "
1776
1777 ARCH_EXT_LIST_X86_SIMD="
1778     aesni
1779     amd3dnow
1780     amd3dnowext
1781     avx
1782     avx2
1783     fma3
1784     fma4
1785     mmx
1786     mmxext
1787     sse
1788     sse2
1789     sse3
1790     sse4
1791     sse42
1792     ssse3
1793     xop
1794 "
1795
1796 ARCH_EXT_LIST_PPC="
1797     altivec
1798     dcbzl
1799     ldbrx
1800     power8
1801     ppc4xx
1802     vsx
1803 "
1804
1805 ARCH_EXT_LIST_X86="
1806     $ARCH_EXT_LIST_X86_SIMD
1807     cpunop
1808     i686
1809 "
1810
1811 ARCH_EXT_LIST="
1812     $ARCH_EXT_LIST_ARM
1813     $ARCH_EXT_LIST_PPC
1814     $ARCH_EXT_LIST_X86
1815     $ARCH_EXT_LIST_MIPS
1816     $ARCH_EXT_LIST_LOONGSON
1817 "
1818
1819 ARCH_FEATURES="
1820     aligned_stack
1821     fast_64bit
1822     fast_clz
1823     fast_cmov
1824     local_aligned_8
1825     local_aligned_16
1826     local_aligned_32
1827     simd_align_16
1828     simd_align_32
1829 "
1830
1831 BUILTIN_LIST="
1832     atomic_cas_ptr
1833     machine_rw_barrier
1834     MemoryBarrier
1835     mm_empty
1836     rdtsc
1837     sarestart
1838     sem_timedwait
1839     sync_val_compare_and_swap
1840 "
1841 HAVE_LIST_CMDLINE="
1842     inline_asm
1843     symver
1844     yasm
1845 "
1846
1847 HAVE_LIST_PUB="
1848     bigendian
1849     fast_unaligned
1850 "
1851
1852 HEADERS_LIST="
1853     alsa_asoundlib_h
1854     altivec_h
1855     arpa_inet_h
1856     asm_types_h
1857     cdio_paranoia_h
1858     cdio_paranoia_paranoia_h
1859     cuda_h
1860     dispatch_dispatch_h
1861     dev_bktr_ioctl_bt848_h
1862     dev_bktr_ioctl_meteor_h
1863     dev_ic_bt8xx_h
1864     dev_video_bktr_ioctl_bt848_h
1865     dev_video_meteor_ioctl_meteor_h
1866     direct_h
1867     dirent_h
1868     dlfcn_h
1869     d3d11_h
1870     dxva_h
1871     ES2_gl_h
1872     gsm_h
1873     io_h
1874     mach_mach_time_h
1875     machine_ioctl_bt848_h
1876     machine_ioctl_meteor_h
1877     malloc_h
1878     opencv2_core_core_c_h
1879     openjpeg_2_1_openjpeg_h
1880     openjpeg_2_0_openjpeg_h
1881     openjpeg_1_5_openjpeg_h
1882     OpenGL_gl3_h
1883     poll_h
1884     sndio_h
1885     soundcard_h
1886     stdatomic_h
1887     sys_mman_h
1888     sys_param_h
1889     sys_resource_h
1890     sys_select_h
1891     sys_soundcard_h
1892     sys_time_h
1893     sys_un_h
1894     sys_videoio_h
1895     termios_h
1896     udplite_h
1897     unistd_h
1898     valgrind_valgrind_h
1899     windows_h
1900     winsock2_h
1901 "
1902
1903 INTRINSICS_LIST="
1904     intrinsics_neon
1905 "
1906
1907 COMPLEX_FUNCS="
1908     cabs
1909     cexp
1910 "
1911
1912 MATH_FUNCS="
1913     atanf
1914     atan2f
1915     cbrt
1916     cbrtf
1917     copysign
1918     cosf
1919     erf
1920     exp2
1921     exp2f
1922     expf
1923     hypot
1924     isfinite
1925     isinf
1926     isnan
1927     ldexpf
1928     llrint
1929     llrintf
1930     log2
1931     log2f
1932     log10f
1933     lrint
1934     lrintf
1935     powf
1936     rint
1937     round
1938     roundf
1939     sinf
1940     trunc
1941     truncf
1942 "
1943
1944 SYSTEM_FUNCS="
1945     access
1946     aligned_malloc
1947     arc4random
1948     clock_gettime
1949     closesocket
1950     CommandLineToArgvW
1951     CoTaskMemFree
1952     CryptGenRandom
1953     dlopen
1954     fcntl
1955     flt_lim
1956     fork
1957     getaddrinfo
1958     gethrtime
1959     getopt
1960     GetProcessAffinityMask
1961     GetProcessMemoryInfo
1962     GetProcessTimes
1963     getrusage
1964     GetSystemTimeAsFileTime
1965     gettimeofday
1966     glob
1967     glXGetProcAddress
1968     gmtime_r
1969     inet_aton
1970     isatty
1971     jack_port_get_latency_range
1972     kbhit
1973     LoadLibrary
1974     localtime_r
1975     lstat
1976     lzo1x_999_compress
1977     mach_absolute_time
1978     MapViewOfFile
1979     memalign
1980     mkstemp
1981     mmap
1982     mprotect
1983     nanosleep
1984     PeekNamedPipe
1985     posix_memalign
1986     pthread_cancel
1987     sched_getaffinity
1988     SetConsoleTextAttribute
1989     SetConsoleCtrlHandler
1990     setmode
1991     setrlimit
1992     Sleep
1993     strerror_r
1994     sysconf
1995     sysctl
1996     usleep
1997     UTGetOSTypeFromString
1998     VirtualAlloc
1999     wglGetProcAddress
2000 "
2001
2002 TOOLCHAIN_FEATURES="
2003     as_dn_directive
2004     as_fpu_directive
2005     as_func
2006     as_object_arch
2007     asm_mod_q
2008     attribute_may_alias
2009     attribute_packed
2010     ebp_available
2011     ebx_available
2012     gnu_as
2013     gnu_windres
2014     ibm_asm
2015     inline_asm_direct_symbol_refs
2016     inline_asm_labels
2017     inline_asm_nonlocal_labels
2018     pragma_deprecated
2019     rsync_contimeout
2020     symver_asm_label
2021     symver_gnu_asm
2022     vfp_args
2023     xform_asm
2024     xmm_clobbers
2025 "
2026
2027 TYPES_LIST="
2028     CONDITION_VARIABLE_Ptr
2029     socklen_t
2030     struct_addrinfo
2031     struct_group_source_req
2032     struct_ip_mreq_source
2033     struct_ipv6_mreq
2034     struct_msghdr_msg_flags
2035     struct_pollfd
2036     struct_rusage_ru_maxrss
2037     struct_sctp_event_subscribe
2038     struct_sockaddr_in6
2039     struct_sockaddr_sa_len
2040     struct_sockaddr_storage
2041     struct_stat_st_mtim_tv_nsec
2042     struct_v4l2_frmivalenum_discrete
2043 "
2044
2045 HAVE_LIST="
2046     $ARCH_EXT_LIST
2047     $(add_suffix _external $ARCH_EXT_LIST)
2048     $(add_suffix _inline   $ARCH_EXT_LIST)
2049     $ARCH_FEATURES
2050     $ATOMICS_LIST
2051     $BUILTIN_LIST
2052     $COMPLEX_FUNCS
2053     $HAVE_LIST_CMDLINE
2054     $HAVE_LIST_PUB
2055     $HEADERS_LIST
2056     $INTRINSICS_LIST
2057     $MATH_FUNCS
2058     $SYSTEM_FUNCS
2059     $THREADS_LIST
2060     $TOOLCHAIN_FEATURES
2061     $TYPES_LIST
2062     atomics_native
2063     dos_paths
2064     dxva2_lib
2065     dxva2api_cobj
2066     libc_msvcrt
2067     makeinfo
2068     makeinfo_html
2069     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2070     perl
2071     pod2man
2072     sdl2
2073     section_data_rel_ro
2074     texi2html
2075     threads
2076     vaapi_drm
2077     vaapi_x11
2078     vdpau_x11
2079     winrt
2080 "
2081
2082 # options emitted with CONFIG_ prefix but not available on the command line
2083 CONFIG_EXTRA="
2084     aandcttables
2085     ac3dsp
2086     audio_frame_queue
2087     audiodsp
2088     blockdsp
2089     bswapdsp
2090     cabac
2091     dirac_parse
2092     dvprofile
2093     exif
2094     faandct
2095     faanidct
2096     fdctdsp
2097     flacdsp
2098     fmtconvert
2099     frame_thread_encoder
2100     g722dsp
2101     golomb
2102     gplv3
2103     h263dsp
2104     h264chroma
2105     h264dsp
2106     h264parse
2107     h264pred
2108     h264qpel
2109     hevcparse
2110     hpeldsp
2111     huffman
2112     huffyuvdsp
2113     huffyuvencdsp
2114     idctdsp
2115     iirfilter
2116     mdct15
2117     intrax8
2118     iso_media
2119     ividsp
2120     jpegtables
2121     lgplv3
2122     libx262
2123     llauddsp
2124     llviddsp
2125     llvidencdsp
2126     lpc
2127     lzf
2128     me_cmp
2129     mpeg_er
2130     mpegaudio
2131     mpegaudiodsp
2132     mpegaudioheader
2133     mpegvideo
2134     mpegvideoenc
2135     mss34dsp
2136     pixblockdsp
2137     qpeldsp
2138     qsv
2139     qsvdec
2140     qsvenc
2141     rangecoder
2142     riffdec
2143     riffenc
2144     rtpdec
2145     rtpenc_chain
2146     rv34dsp
2147     sinewin
2148     snappy
2149     srtp
2150     startcode
2151     texturedsp
2152     texturedspenc
2153     tpeldsp
2154     vaapi_encode
2155     vc1dsp
2156     videodsp
2157     vp3dsp
2158     vp56dsp
2159     vp8dsp
2160     vt_bt2020
2161     wma_freqs
2162     wmv2dsp
2163 "
2164
2165 CMDLINE_SELECT="
2166     $ARCH_EXT_LIST
2167     $CONFIG_LIST
2168     $HAVE_LIST_CMDLINE
2169     $THREADS_LIST
2170     asm
2171     cross_compile
2172     debug
2173     extra_warnings
2174     logging
2175     lto
2176     optimizations
2177     rpath
2178     stripping
2179 "
2180
2181 PATHS_LIST="
2182     bindir
2183     datadir
2184     docdir
2185     incdir
2186     libdir
2187     mandir
2188     pkgconfigdir
2189     prefix
2190     shlibdir
2191     install_name_dir
2192 "
2193
2194 CMDLINE_SET="
2195     $PATHS_LIST
2196     ar
2197     arch
2198     as
2199     assert_level
2200     build_suffix
2201     cc
2202     objcc
2203     cpu
2204     cross_prefix
2205     custom_allocator
2206     cxx
2207     dep_cc
2208     doxygen
2209     env
2210     extra_version
2211     gas
2212     host_cc
2213     host_cflags
2214     host_ld
2215     host_ldflags
2216     host_libs
2217     host_os
2218     install
2219     ld
2220     ln_s
2221     logfile
2222     malloc_prefix
2223     nm
2224     optflags
2225     pkg_config
2226     pkg_config_flags
2227     progs_suffix
2228     random_seed
2229     ranlib
2230     samples
2231     strip
2232     sws_max_filter_size
2233     sysinclude
2234     sysroot
2235     target_exec
2236     target_os
2237     target_path
2238     target_samples
2239     tempprefix
2240     toolchain
2241     valgrind
2242     yasmexe
2243 "
2244
2245 CMDLINE_APPEND="
2246     extra_cflags
2247     extra_cxxflags
2248     extra_objcflags
2249     host_cppflags
2250 "
2251
2252 # code dependency declarations
2253
2254 # architecture extensions
2255
2256 armv5te_deps="arm"
2257 armv6_deps="arm"
2258 armv6t2_deps="arm"
2259 armv8_deps="aarch64"
2260 neon_deps_any="aarch64 arm"
2261 intrinsics_neon_deps="neon"
2262 vfp_deps_any="aarch64 arm"
2263 vfpv3_deps="vfp"
2264 setend_deps="arm"
2265
2266 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2267
2268 loongson2_deps="mips"
2269 loongson3_deps="mips"
2270 mipsfpu_deps="mips"
2271 mipsdsp_deps="mips"
2272 mipsdspr2_deps="mips"
2273 mips32r2_deps="mips"
2274 mips32r5_deps="mips"
2275 mips32r6_deps="mips"
2276 mips64r2_deps="mips"
2277 mips64r6_deps="mips"
2278 msa_deps="mipsfpu"
2279 mmi_deps="mips"
2280
2281 altivec_deps="ppc"
2282 dcbzl_deps="ppc"
2283 ldbrx_deps="ppc"
2284 ppc4xx_deps="ppc"
2285 vsx_deps="altivec"
2286 power8_deps="vsx"
2287
2288 cpunop_deps="i686"
2289 x86_64_select="i686"
2290 x86_64_suggest="fast_cmov"
2291
2292 amd3dnow_deps="mmx"
2293 amd3dnowext_deps="amd3dnow"
2294 i686_deps="x86"
2295 mmx_deps="x86"
2296 mmxext_deps="mmx"
2297 sse_deps="mmxext"
2298 sse2_deps="sse"
2299 sse3_deps="sse2"
2300 ssse3_deps="sse3"
2301 sse4_deps="ssse3"
2302 sse42_deps="sse4"
2303 aesni_deps="sse42"
2304 avx_deps="sse42"
2305 xop_deps="avx"
2306 fma3_deps="avx"
2307 fma4_deps="avx"
2308 avx2_deps="avx"
2309
2310 mmx_external_deps="yasm"
2311 mmx_inline_deps="inline_asm"
2312 mmx_suggest="mmx_external mmx_inline"
2313
2314 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2315     eval dep=\$${ext}_deps
2316     eval ${ext}_external_deps='"${dep}_external"'
2317     eval ${ext}_inline_deps='"${dep}_inline"'
2318     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2319 done
2320
2321 aligned_stack_if_any="aarch64 ppc x86"
2322 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2323 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2324 fast_unaligned_if_any="aarch64 ppc x86"
2325 simd_align_16_if_any="altivec neon sse"
2326 simd_align_32_if_any="avx"
2327
2328 # system capabilities
2329 symver_if_any="symver_asm_label symver_gnu_asm"
2330 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2331
2332 # threading support
2333 atomics_gcc_if="sync_val_compare_and_swap"
2334 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2335 atomics_win32_if="MemoryBarrier"
2336 atomics_native_if_any="$ATOMICS_LIST"
2337 w32threads_deps="atomics_native"
2338 threads_if_any="$THREADS_LIST"
2339
2340 # subsystems
2341 dct_select="rdft"
2342 dirac_parse_select="golomb"
2343 error_resilience_select="me_cmp"
2344 faandct_deps="faan fdctdsp"
2345 faanidct_deps="faan idctdsp"
2346 h264dsp_select="startcode"
2347 frame_thread_encoder_deps="encoders threads"
2348 intrax8_select="blockdsp idctdsp"
2349 mdct_select="fft"
2350 mdct15_select="fft"
2351 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2352 mpeg_er_select="error_resilience"
2353 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2354 mpegaudiodsp_select="dct"
2355 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2356 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2357 vc1dsp_select="h264chroma qpeldsp startcode"
2358 rdft_select="fft"
2359
2360 # decoders / encoders
2361 aac_decoder_select="mdct15 mdct sinewin"
2362 aac_fixed_decoder_select="mdct sinewin"
2363 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2364 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2365 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2366 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2367 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2368 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2369 adpcm_g722_decoder_select="g722dsp"
2370 adpcm_g722_encoder_select="g722dsp"
2371 aic_decoder_select="golomb idctdsp"
2372 alac_encoder_select="lpc"
2373 als_decoder_select="bswapdsp"
2374 amrnb_decoder_select="lsp"
2375 amrwb_decoder_select="lsp"
2376 amv_decoder_select="sp5x_decoder exif"
2377 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2378 ape_decoder_select="bswapdsp llauddsp"
2379 apng_decoder_select="zlib"
2380 apng_encoder_select="llvidencdsp zlib"
2381 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2382 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2383 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2384 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2385 atrac1_decoder_select="mdct sinewin"
2386 atrac3_decoder_select="mdct"
2387 atrac3p_decoder_select="mdct sinewin"
2388 avrn_decoder_select="exif jpegtables"
2389 bink_decoder_select="blockdsp hpeldsp"
2390 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2391 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2392 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2393 cllc_decoder_select="bswapdsp"
2394 comfortnoise_encoder_select="lpc"
2395 cook_decoder_select="audiodsp mdct sinewin"
2396 cscd_decoder_select="lzo"
2397 cscd_decoder_suggest="zlib"
2398 dca_decoder_select="mdct"
2399 dds_decoder_select="texturedsp"
2400 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2401 dnxhd_decoder_select="blockdsp idctdsp"
2402 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2403 dvvideo_decoder_select="dvprofile idctdsp"
2404 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2405 dxa_decoder_select="zlib"
2406 dxv_decoder_select="lzf texturedsp"
2407 eac3_decoder_select="ac3_decoder"
2408 eac3_encoder_select="ac3_encoder"
2409 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2410 eatgq_decoder_select="aandcttables"
2411 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2412 exr_decoder_select="zlib"
2413 ffv1_decoder_select="golomb rangecoder"
2414 ffv1_encoder_select="rangecoder"
2415 ffvhuff_decoder_select="huffyuv_decoder"
2416 ffvhuff_encoder_select="huffyuv_encoder"
2417 fic_decoder_select="golomb"
2418 flac_decoder_select="flacdsp golomb"
2419 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2420 flashsv2_decoder_select="zlib"
2421 flashsv2_encoder_select="zlib"
2422 flashsv_decoder_select="zlib"
2423 flashsv_encoder_select="zlib"
2424 flv_decoder_select="h263_decoder"
2425 flv_encoder_select="h263_encoder"
2426 fourxm_decoder_select="blockdsp bswapdsp"
2427 fraps_decoder_select="bswapdsp huffman"
2428 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2429 g729_decoder_select="audiodsp"
2430 h261_decoder_select="mpegvideo"
2431 h261_encoder_select="aandcttables mpegvideoenc"
2432 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2433 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2434 h263i_decoder_select="h263_decoder"
2435 h263p_decoder_select="h263_decoder"
2436 h263p_encoder_select="h263_encoder"
2437 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2438 h264_decoder_suggest="error_resilience"
2439 hap_decoder_select="snappy texturedsp"
2440 hap_encoder_deps="libsnappy"
2441 hap_encoder_select="texturedspenc"
2442 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2443 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2444 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2445 iac_decoder_select="imc_decoder"
2446 imc_decoder_select="bswapdsp fft mdct sinewin"
2447 indeo3_decoder_select="hpeldsp"
2448 indeo4_decoder_select="ividsp"
2449 indeo5_decoder_select="ividsp"
2450 interplay_video_decoder_select="hpeldsp"
2451 jpegls_decoder_select="golomb mjpeg_decoder"
2452 jpegls_encoder_select="golomb"
2453 jv_decoder_select="blockdsp"
2454 lagarith_decoder_select="llviddsp"
2455 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2456 loco_decoder_select="golomb"
2457 magicyuv_decoder_select="llviddsp"
2458 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2459 metasound_decoder_select="lsp mdct sinewin"
2460 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2461 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2462 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2463 mjpegb_decoder_select="mjpeg_decoder"
2464 mlp_decoder_select="mlp_parser"
2465 motionpixels_decoder_select="bswapdsp"
2466 mp1_decoder_select="mpegaudio"
2467 mp1float_decoder_select="mpegaudio"
2468 mp2_decoder_select="mpegaudio"
2469 mp2float_decoder_select="mpegaudio"
2470 mp3_decoder_select="mpegaudio"
2471 mp3adu_decoder_select="mpegaudio"
2472 mp3adufloat_decoder_select="mpegaudio"
2473 mp3float_decoder_select="mpegaudio"
2474 mp3on4_decoder_select="mpegaudio"
2475 mp3on4float_decoder_select="mpegaudio"
2476 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2477 mpc8_decoder_select="mpegaudiodsp"
2478 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2479 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2480 mpegvideo_decoder_select="mpegvideo"
2481 mpeg1video_decoder_select="mpegvideo"
2482 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2483 mpeg2video_decoder_select="mpegvideo"
2484 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2485 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2486 mpeg4_encoder_select="h263_encoder"
2487 msa1_decoder_select="mss34dsp"
2488 msmpeg4v1_decoder_select="h263_decoder"
2489 msmpeg4v2_decoder_select="h263_decoder"
2490 msmpeg4v2_encoder_select="h263_encoder"
2491 msmpeg4v3_decoder_select="h263_decoder"
2492 msmpeg4v3_encoder_select="h263_encoder"
2493 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2494 mts2_decoder_select="mss34dsp"
2495 mxpeg_decoder_select="mjpeg_decoder"
2496 nellymoser_decoder_select="mdct sinewin"
2497 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2498 nuv_decoder_select="idctdsp lzo"
2499 on2avc_decoder_select="mdct"
2500 opus_decoder_deps="swresample"
2501 opus_decoder_select="mdct15"
2502 opus_encoder_select="audio_frame_queue mdct15"
2503 png_decoder_select="zlib"
2504 png_encoder_select="llvidencdsp zlib"
2505 prores_decoder_select="blockdsp idctdsp"
2506 prores_encoder_select="fdctdsp"
2507 qcelp_decoder_select="lsp"
2508 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2509 ra_144_decoder_select="audiodsp"
2510 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2511 ralf_decoder_select="golomb"
2512 rawvideo_decoder_select="bswapdsp"
2513 rscc_decoder_select="zlib"
2514 rtjpeg_decoder_select="me_cmp"
2515 rv10_decoder_select="h263_decoder"
2516 rv10_encoder_select="h263_encoder"
2517 rv20_decoder_select="h263_decoder"
2518 rv20_encoder_select="h263_encoder"
2519 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2520 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2521 screenpresso_decoder_select="zlib"
2522 shorten_decoder_select="golomb bswapdsp"
2523 sipr_decoder_select="lsp"
2524 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2525 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2526 sonic_decoder_select="golomb rangecoder"
2527 sonic_encoder_select="golomb rangecoder"
2528 sonic_ls_encoder_select="golomb rangecoder"
2529 sp5x_decoder_select="mjpeg_decoder"
2530 svq1_decoder_select="hpeldsp"
2531 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2532 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2533 svq3_decoder_suggest="zlib"
2534 tak_decoder_select="audiodsp"
2535 tdsc_decoder_select="zlib mjpeg_decoder"
2536 theora_decoder_select="vp3_decoder"
2537 thp_decoder_select="mjpeg_decoder"
2538 tiff_decoder_suggest="zlib lzma"
2539 tiff_encoder_suggest="zlib"
2540 truehd_decoder_select="mlp_parser"
2541 truemotion2_decoder_select="bswapdsp"
2542 truespeech_decoder_select="bswapdsp"
2543 tscc_decoder_select="zlib"
2544 twinvq_decoder_select="mdct lsp sinewin"
2545 txd_decoder_select="texturedsp"
2546 utvideo_decoder_select="bswapdsp llviddsp"
2547 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2548 vble_decoder_select="llviddsp"
2549 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2550 vc1_qsv_decoder_deps="libmfx"
2551 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2552 vc1image_decoder_select="vc1_decoder"
2553 vorbis_decoder_select="mdct"
2554 vorbis_encoder_select="mdct"
2555 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2556 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2557 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2558 vp6a_decoder_select="vp6_decoder"
2559 vp6f_decoder_select="vp6_decoder"
2560 vp7_decoder_select="h264pred videodsp vp8dsp"
2561 vp8_decoder_select="h264pred videodsp vp8dsp"
2562 vp9_decoder_select="videodsp vp9_parser"
2563 webp_decoder_select="vp8_decoder exif"
2564 wmalossless_decoder_select="llauddsp"
2565 wmapro_decoder_select="mdct sinewin wma_freqs"
2566 wmav1_decoder_select="mdct sinewin wma_freqs"
2567 wmav1_encoder_select="mdct sinewin wma_freqs"
2568 wmav2_decoder_select="mdct sinewin wma_freqs"
2569 wmav2_encoder_select="mdct sinewin wma_freqs"
2570 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2571 wmv1_decoder_select="h263_decoder"
2572 wmv1_encoder_select="h263_encoder"
2573 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2574 wmv2_encoder_select="h263_encoder wmv2dsp"
2575 wmv3_decoder_select="vc1_decoder"
2576 wmv3image_decoder_select="wmv3_decoder"
2577 xma1_decoder_select="wmapro_decoder"
2578 xma2_decoder_select="wmapro_decoder"
2579 zerocodec_decoder_select="zlib"
2580 zlib_decoder_select="zlib"
2581 zlib_encoder_select="zlib"
2582 zmbv_decoder_select="zlib"
2583 zmbv_encoder_select="zlib"
2584
2585 # platform codecs
2586 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2587 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2588
2589 # hardware accelerators
2590 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2591 cuda_deps_any="dlopen LoadLibrary"
2592 cuvid_deps="cuda"
2593 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2594 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2595 dxva2_extralibs="-luser32"
2596 vaapi_deps="va_va_h"
2597 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2598 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2599 vda_deps="vda_framework pthreads"
2600 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2601 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2602 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2603 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2604 xvmc_deps="X11_extensions_XvMClib_h"
2605
2606 h263_vaapi_hwaccel_deps="vaapi"
2607 h263_vaapi_hwaccel_select="h263_decoder"
2608 h263_videotoolbox_hwaccel_deps="videotoolbox"
2609 h263_videotoolbox_hwaccel_select="h263_decoder"
2610 h264_cuvid_hwaccel_deps="cuda cuvid"
2611 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2612 h264_d3d11va_hwaccel_deps="d3d11va"
2613 h264_d3d11va_hwaccel_select="h264_decoder"
2614 h264_dxva2_hwaccel_deps="dxva2"
2615 h264_dxva2_hwaccel_select="h264_decoder"
2616 h264_mediacodec_hwaccel_deps="mediacodec"
2617 h264_mmal_hwaccel_deps="mmal"
2618 h264_qsv_hwaccel_deps="libmfx"
2619 h264_vaapi_hwaccel_deps="vaapi"
2620 h264_vaapi_hwaccel_select="h264_decoder"
2621 h264_vda_hwaccel_deps="vda"
2622 h264_vda_hwaccel_select="h264_decoder"
2623 h264_vda_old_hwaccel_deps="vda"
2624 h264_vda_old_hwaccel_select="h264_decoder"
2625 h264_vdpau_hwaccel_deps="vdpau"
2626 h264_vdpau_hwaccel_select="h264_decoder"
2627 h264_videotoolbox_hwaccel_deps="videotoolbox"
2628 h264_videotoolbox_hwaccel_select="h264_decoder"
2629 hevc_cuvid_hwaccel_deps="cuda cuvid"
2630 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2631 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2632 hevc_d3d11va_hwaccel_select="hevc_decoder"
2633 hevc_mediacodec_hwaccel_deps="mediacodec"
2634 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2635 hevc_dxva2_hwaccel_select="hevc_decoder"
2636 hevc_qsv_hwaccel_deps="libmfx"
2637 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2638 hevc_vaapi_hwaccel_select="hevc_decoder"
2639 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2640 hevc_vdpau_hwaccel_select="hevc_decoder"
2641 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2642 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2643 mpeg_xvmc_hwaccel_deps="xvmc"
2644 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2645 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2646 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2647 mpeg1_vdpau_hwaccel_deps="vdpau"
2648 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2649 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2650 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2651 mpeg1_xvmc_hwaccel_deps="xvmc"
2652 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2653 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2654 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2655 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2656 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2657 mpeg2_dxva2_hwaccel_deps="dxva2"
2658 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2659 mpeg2_mmal_hwaccel_deps="mmal"
2660 mpeg2_qsv_hwaccel_deps="libmfx"
2661 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2662 mpeg2_vaapi_hwaccel_deps="vaapi"
2663 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2664 mpeg2_vdpau_hwaccel_deps="vdpau"
2665 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2666 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2667 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2668 mpeg2_xvmc_hwaccel_deps="xvmc"
2669 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2670 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2671 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2672 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2673 mpeg4_mmal_hwaccel_deps="mmal"
2674 mpeg4_vaapi_hwaccel_deps="vaapi"
2675 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2676 mpeg4_vdpau_hwaccel_deps="vdpau"
2677 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2678 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2679 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2680 vc1_cuvid_hwaccel_deps="cuda cuvid"
2681 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2682 vc1_d3d11va_hwaccel_deps="d3d11va"
2683 vc1_d3d11va_hwaccel_select="vc1_decoder"
2684 vc1_dxva2_hwaccel_deps="dxva2"
2685 vc1_dxva2_hwaccel_select="vc1_decoder"
2686 vc1_mmal_hwaccel_deps="mmal"
2687 vc1_qsv_hwaccel_deps="libmfx"
2688 vc1_qsv_hwaccel_select="qsvdec_vc1"
2689 vc1_vaapi_hwaccel_deps="vaapi"
2690 vc1_vaapi_hwaccel_select="vc1_decoder"
2691 vc1_vdpau_hwaccel_deps="vdpau"
2692 vc1_vdpau_hwaccel_select="vc1_decoder"
2693 vp8_cuvid_hwaccel_deps="cuda cuvid"
2694 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2695 vp9_cuvid_hwaccel_deps="cuda cuvid"
2696 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2697 vp8_mediacodec_hwaccel_deps="mediacodec"
2698 vp8_qsv_hwaccel_deps="libmfx"
2699 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2700 vp9_d3d11va_hwaccel_select="vp9_decoder"
2701 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2702 vp9_dxva2_hwaccel_select="vp9_decoder"
2703 vp9_mediacodec_hwaccel_deps="mediacodec"
2704 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2705 vp9_vaapi_hwaccel_select="vp9_decoder"
2706 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2707 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2708 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2709 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2710
2711 # hardware-accelerated codecs
2712 omx_deps="dlopen pthreads"
2713 omx_extralibs='$ldl'
2714 omx_rpi_select="omx"
2715 qsvdec_select="qsv"
2716 qsvenc_select="qsv"
2717 vaapi_encode_deps="vaapi"
2718
2719 hwupload_cuda_filter_deps="cuda"
2720 scale_npp_filter_deps="cuda libnpp"
2721
2722 nvenc_deps="cuda"
2723 nvenc_deps_any="dlopen LoadLibrary"
2724 nvenc_encoder_deps="nvenc"
2725
2726 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2727 h264_cuvid_decoder_deps="cuda cuvid"
2728 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2729 h264_mediacodec_decoder_deps="mediacodec"
2730 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2731 h264_mmal_decoder_deps="mmal"
2732 h264_nvenc_encoder_deps="nvenc"
2733 h264_omx_encoder_deps="omx"
2734 h264_qsv_decoder_deps="libmfx"
2735 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2736 h264_qsv_encoder_deps="libmfx"
2737 h264_qsv_encoder_select="qsvenc"
2738 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2739 h264_vaapi_encoder_select="vaapi_encode golomb"
2740 h264_vda_decoder_deps="vda"
2741 h264_vda_decoder_select="h264_decoder"
2742 h264_vdpau_decoder_deps="vdpau"
2743 h264_vdpau_decoder_select="h264_decoder"
2744 hevc_cuvid_decoder_deps="cuda cuvid"
2745 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2746 hevc_mediacodec_decoder_deps="mediacodec"
2747 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2748 hevc_nvenc_encoder_deps="nvenc"
2749 hevc_qsv_decoder_deps="libmfx"
2750 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2751 hevc_qsv_encoder_deps="libmfx"
2752 hevc_qsv_encoder_select="hevcparse qsvenc"
2753 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2754 hevc_vaapi_encoder_select="vaapi_encode golomb"
2755 mjpeg_cuvid_decoder_deps="cuda cuvid"
2756 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2757 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2758 mpeg1_cuvid_decoder_deps="cuda cuvid"
2759 mpeg1_vdpau_decoder_deps="vdpau"
2760 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2761 mpeg2_crystalhd_decoder_select="crystalhd"
2762 mpeg2_cuvid_decoder_deps="cuda cuvid"
2763 mpeg2_mmal_decoder_deps="mmal"
2764 mpeg2_qsv_decoder_deps="libmfx"
2765 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2766 mpeg2_qsv_encoder_deps="libmfx"
2767 mpeg2_qsv_encoder_select="qsvenc"
2768 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2769 mpeg2_vaapi_encoder_select="vaapi_encode"
2770 mpeg4_crystalhd_decoder_select="crystalhd"
2771 mpeg4_cuvid_decoder_deps="cuda cuvid"
2772 mpeg4_mediacodec_decoder_deps="mediacodec"
2773 mpeg4_mmal_decoder_deps="mmal"
2774 mpeg4_omx_encoder_deps="omx"
2775 mpeg4_vdpau_decoder_deps="vdpau"
2776 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2777 mpeg_vdpau_decoder_deps="vdpau"
2778 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2779 msmpeg4_crystalhd_decoder_select="crystalhd"
2780 nvenc_h264_encoder_deps="nvenc"
2781 nvenc_hevc_encoder_deps="nvenc"
2782 vc1_crystalhd_decoder_select="crystalhd"
2783 vc1_cuvid_decoder_deps="cuda cuvid"
2784 vc1_mmal_decoder_deps="mmal"
2785 vc1_vdpau_decoder_deps="vdpau"
2786 vc1_vdpau_decoder_select="vc1_decoder"
2787 vp8_cuvid_decoder_deps="cuda cuvid"
2788 vp8_mediacodec_decoder_deps="mediacodec"
2789 vp8_qsv_decoder_deps="libmfx"
2790 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2791 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2792 vp8_vaapi_encoder_select="vaapi_encode"
2793 vp9_cuvid_decoder_deps="cuda cuvid"
2794 vp9_mediacodec_decoder_deps="mediacodec"
2795 wmv3_crystalhd_decoder_select="crystalhd"
2796 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2797
2798 # parsers
2799 h264_parser_select="golomb h264dsp h264parse"
2800 hevc_parser_select="golomb hevcparse"
2801 mpegaudio_parser_select="mpegaudioheader"
2802 mpegvideo_parser_select="mpegvideo"
2803 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2804 vc1_parser_select="vc1dsp"
2805
2806 # bitstream_filters
2807 mjpeg2jpeg_bsf_select="jpegtables"
2808
2809 # external libraries
2810 aac_at_decoder_deps="audiotoolbox"
2811 ac3_at_decoder_deps="audiotoolbox"
2812 ac3_at_decoder_select="ac3_parser"
2813 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2814 alac_at_decoder_deps="audiotoolbox"
2815 amr_nb_at_decoder_deps="audiotoolbox"
2816 avisynth_deps_any="dlopen LoadLibrary"
2817 avisynth_demuxer_deps="avisynth"
2818 avisynth_demuxer_select="riffdec"
2819 eac3_at_decoder_deps="audiotoolbox"
2820 eac3_at_decoder_select="ac3_parser"
2821 gsm_ms_at_decoder_deps="audiotoolbox"
2822 ilbc_at_decoder_deps="audiotoolbox"
2823 mp1_at_decoder_deps="audiotoolbox"
2824 mp2_at_decoder_deps="audiotoolbox"
2825 mp3_at_decoder_deps="audiotoolbox"
2826 mp1_at_decoder_select="mpegaudioheader"
2827 mp2_at_decoder_select="mpegaudioheader"
2828 mp3_at_decoder_select="mpegaudioheader"
2829 pcm_alaw_at_decoder_deps="audiotoolbox"
2830 pcm_mulaw_at_decoder_deps="audiotoolbox"
2831 qdmc_at_decoder_deps="audiotoolbox"
2832 qdm2_at_decoder_deps="audiotoolbox"
2833 aac_at_encoder_deps="audiotoolbox"
2834 aac_at_encoder_select="audio_frame_queue"
2835 alac_at_encoder_deps="audiotoolbox"
2836 alac_at_encoder_select="audio_frame_queue"
2837 ilbc_at_encoder_deps="audiotoolbox"
2838 ilbc_at_encoder_select="audio_frame_queue"
2839 pcm_alaw_at_encoder_deps="audiotoolbox"
2840 pcm_alaw_at_encoder_select="audio_frame_queue"
2841 pcm_mulaw_at_encoder_deps="audiotoolbox"
2842 pcm_mulaw_at_encoder_select="audio_frame_queue"
2843 chromaprint_muxer_deps="chromaprint"
2844 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2845 libcelt_decoder_deps="libcelt"
2846 libfdk_aac_decoder_deps="libfdk_aac"
2847 libfdk_aac_encoder_deps="libfdk_aac"
2848 libfdk_aac_encoder_select="audio_frame_queue"
2849 libgme_demuxer_deps="libgme"
2850 libgsm_decoder_deps="libgsm"
2851 libgsm_encoder_deps="libgsm"
2852 libgsm_ms_decoder_deps="libgsm"
2853 libgsm_ms_encoder_deps="libgsm"
2854 libilbc_decoder_deps="libilbc"
2855 libilbc_encoder_deps="libilbc"
2856 libkvazaar_encoder_deps="libkvazaar"
2857 libmodplug_demuxer_deps="libmodplug"
2858 libmp3lame_encoder_deps="libmp3lame"
2859 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2860 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2861 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2862 libopencore_amrnb_encoder_select="audio_frame_queue"
2863 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2864 libopenh264_decoder_deps="libopenh264"
2865 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2866 libopenh264_encoder_deps="libopenh264"
2867 libopenjpeg_decoder_deps="libopenjpeg"
2868 libopenjpeg_encoder_deps="libopenjpeg"
2869 libopenmpt_demuxer_deps="libopenmpt"
2870 libopus_decoder_deps="libopus"
2871 libopus_encoder_deps="libopus"
2872 libopus_encoder_select="audio_frame_queue"
2873 libschroedinger_decoder_deps="libschroedinger"
2874 libschroedinger_encoder_deps="libschroedinger"
2875 libshine_encoder_deps="libshine"
2876 libshine_encoder_select="audio_frame_queue"
2877 libspeex_decoder_deps="libspeex"
2878 libspeex_encoder_deps="libspeex"
2879 libspeex_encoder_select="audio_frame_queue"
2880 libtheora_encoder_deps="libtheora"
2881 libtwolame_encoder_deps="libtwolame"
2882 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2883 libvorbis_decoder_deps="libvorbis"
2884 libvorbis_encoder_deps="libvorbis"
2885 libvorbis_encoder_select="audio_frame_queue"
2886 libvpx_vp8_decoder_deps="libvpx"
2887 libvpx_vp8_encoder_deps="libvpx"
2888 libvpx_vp9_decoder_deps="libvpx"
2889 libvpx_vp9_encoder_deps="libvpx"
2890 libwavpack_encoder_deps="libwavpack"
2891 libwavpack_encoder_select="audio_frame_queue"
2892 libwebp_encoder_deps="libwebp"
2893 libwebp_anim_encoder_deps="libwebp"
2894 libx262_encoder_deps="libx262"
2895 libx264_encoder_deps="libx264"
2896 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2897 libx264rgb_encoder_select="libx264_encoder"
2898 libx265_encoder_deps="libx265"
2899 libxavs_encoder_deps="libxavs"
2900 libxvid_encoder_deps="libxvid"
2901 libzvbi_teletext_decoder_deps="libzvbi"
2902 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2903 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2904 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2905 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2906 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2907
2908 # demuxers / muxers
2909 ac3_demuxer_select="ac3_parser"
2910 aiff_muxer_select="iso_media"
2911 asf_demuxer_select="riffdec"
2912 asf_o_demuxer_select="riffdec"
2913 asf_muxer_select="riffenc"
2914 asf_stream_muxer_select="asf_muxer"
2915 avi_demuxer_select="iso_media riffdec exif"
2916 avi_muxer_select="riffenc"
2917 caf_demuxer_select="iso_media riffdec"
2918 caf_muxer_select="iso_media"
2919 dash_muxer_select="mp4_muxer"
2920 dirac_demuxer_select="dirac_parser"
2921 dts_demuxer_select="dca_parser"
2922 dtshd_demuxer_select="dca_parser"
2923 dv_demuxer_select="dvprofile"
2924 dv_muxer_select="dvprofile"
2925 dxa_demuxer_select="riffdec"
2926 eac3_demuxer_select="ac3_parser"
2927 f4v_muxer_select="mov_muxer"
2928 fifo_muxer_deps="threads"
2929 flac_demuxer_select="flac_parser"
2930 hds_muxer_select="flv_muxer"
2931 hls_muxer_select="mpegts_muxer"
2932 image2_alias_pix_demuxer_select="image2_demuxer"
2933 image2_brender_pix_demuxer_select="image2_demuxer"
2934 ipod_muxer_select="mov_muxer"
2935 ismv_muxer_select="mov_muxer"
2936 libnut_demuxer_deps="libnut"
2937 libnut_muxer_deps="libnut"
2938 matroska_audio_muxer_select="matroska_muxer"
2939 matroska_demuxer_select="iso_media riffdec"
2940 matroska_demuxer_suggest="bzlib lzo zlib"
2941 matroska_muxer_select="iso_media riffenc"
2942 mmf_muxer_select="riffenc"
2943 mov_demuxer_select="iso_media riffdec"
2944 mov_demuxer_suggest="zlib"
2945 mov_muxer_select="iso_media riffenc rtpenc_chain"
2946 mp3_demuxer_select="mpegaudio_parser"
2947 mp3_muxer_select="mpegaudioheader"
2948 mp4_muxer_select="mov_muxer"
2949 mpegts_demuxer_select="iso_media"
2950 mpegts_muxer_select="adts_muxer latm_muxer"
2951 mpegtsraw_demuxer_select="mpegts_demuxer"
2952 mxf_d10_muxer_select="mxf_muxer"
2953 mxf_opatom_muxer_select="mxf_muxer"
2954 nut_muxer_select="riffenc"
2955 nuv_demuxer_select="riffdec"
2956 oga_muxer_select="ogg_muxer"
2957 ogg_demuxer_select="dirac_parse"
2958 ogv_muxer_select="ogg_muxer"
2959 opus_muxer_select="ogg_muxer"
2960 psp_muxer_select="mov_muxer"
2961 rtp_demuxer_select="sdp_demuxer"
2962 rtp_muxer_select="golomb"
2963 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2964 rtsp_demuxer_select="http_protocol rtpdec"
2965 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2966 sap_demuxer_select="sdp_demuxer"
2967 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2968 sdp_demuxer_select="rtpdec"
2969 smoothstreaming_muxer_select="ismv_muxer"
2970 spdif_muxer_select="aac_parser"
2971 spx_muxer_select="ogg_muxer"
2972 swf_demuxer_suggest="zlib"
2973 tak_demuxer_select="tak_parser"
2974 tg2_muxer_select="mov_muxer"
2975 tgp_muxer_select="mov_muxer"
2976 vobsub_demuxer_select="mpegps_demuxer"
2977 w64_demuxer_select="wav_demuxer"
2978 w64_muxer_select="wav_muxer"
2979 wav_demuxer_select="riffdec"
2980 wav_muxer_select="riffenc"
2981 webm_muxer_select="iso_media riffenc"
2982 webm_dash_manifest_demuxer_select="matroska_demuxer"
2983 wtv_demuxer_select="mpegts_demuxer riffdec"
2984 wtv_muxer_select="mpegts_muxer riffenc"
2985 xmv_demuxer_select="riffdec"
2986 xwma_demuxer_select="riffdec"
2987
2988 # indevs / outdevs
2989 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2990 alsa_outdev_deps="alsa_asoundlib_h"
2991 avfoundation_indev_deps="pthreads"
2992 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2993 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2994 caca_outdev_deps="libcaca"
2995 decklink_indev_deps="decklink pthreads"
2996 decklink_indev_extralibs="-lstdc++"
2997 decklink_outdev_deps="decklink pthreads"
2998 decklink_outdev_extralibs="-lstdc++"
2999 dshow_indev_deps="IBaseFilter"
3000 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3001 dv1394_indev_deps="dv1394"
3002 dv1394_indev_select="dv_demuxer"
3003 fbdev_indev_deps="linux_fb_h"
3004 fbdev_outdev_deps="linux_fb_h"
3005 gdigrab_indev_deps="CreateDIBSection"
3006 gdigrab_indev_extralibs="-lgdi32"
3007 gdigrab_indev_select="bmp_decoder"
3008 iec61883_indev_deps="libiec61883"
3009 jack_indev_deps="jack_jack_h"
3010 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3011 lavfi_indev_deps="avfilter"
3012 libcdio_indev_deps="libcdio"
3013 libdc1394_indev_deps="libdc1394"
3014 libv4l2_indev_deps="libv4l2"
3015 openal_indev_deps="openal"
3016 opengl_outdev_deps="opengl"
3017 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3018 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3019 pulse_indev_deps="libpulse"
3020 pulse_outdev_deps="libpulse"
3021 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3022 qtkit_indev_select="qtkit"
3023 sdl2_outdev_deps="sdl2"
3024 sndio_indev_deps="sndio_h"
3025 sndio_outdev_deps="sndio_h"
3026 v4l_indev_deps="linux_videodev_h"
3027 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3028 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3029 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3030 vfwcap_indev_extralibs="-lavicap32"
3031 xcbgrab_indev_deps="libxcb"
3032 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3033 xv_outdev_extralibs="-lXv -lX11 -lXext"
3034
3035 # protocols
3036 async_protocol_deps="threads"
3037 bluray_protocol_deps="libbluray"
3038 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3039 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3040 ffrtmpcrypt_protocol_select="tcp_protocol"
3041 ffrtmphttp_protocol_deps="!librtmp_protocol"
3042 ffrtmphttp_protocol_select="http_protocol"
3043 ftp_protocol_select="tcp_protocol"
3044 gopher_protocol_select="network"
3045 http_protocol_select="tcp_protocol"
3046 httpproxy_protocol_select="tcp_protocol"
3047 https_protocol_select="tls_protocol"
3048 icecast_protocol_select="http_protocol"
3049 librtmp_protocol_deps="librtmp"
3050 librtmpe_protocol_deps="librtmp"
3051 librtmps_protocol_deps="librtmp"
3052 librtmpt_protocol_deps="librtmp"
3053 librtmpte_protocol_deps="librtmp"
3054 libsmbclient_protocol_deps="libsmbclient gplv3"
3055 libssh_protocol_deps="libssh"
3056 mmsh_protocol_select="http_protocol"
3057 mmst_protocol_select="network"
3058 rtmp_protocol_deps="!librtmp_protocol"
3059 rtmp_protocol_select="tcp_protocol"
3060 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3061 rtmps_protocol_deps="!librtmp_protocol"
3062 rtmps_protocol_select="tls_protocol"
3063 rtmpt_protocol_select="ffrtmphttp_protocol"
3064 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3065 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3066 rtp_protocol_select="udp_protocol"
3067 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3068 sctp_protocol_select="network"
3069 srtp_protocol_select="rtp_protocol srtp"
3070 tcp_protocol_select="network"
3071 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3072 tls_gnutls_protocol_select="tcp_protocol"
3073 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3074 tls_openssl_protocol_select="tcp_protocol"
3075 tls_schannel_protocol_deps="schannel"
3076 tls_schannel_protocol_select="tcp_protocol"
3077 tls_securetransport_protocol_deps="securetransport"
3078 tls_securetransport_protocol_select="tcp_protocol"
3079 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3080 udp_protocol_select="network"
3081 udplite_protocol_select="network"
3082 unix_protocol_deps="sys_un_h"
3083 unix_protocol_select="network"
3084
3085 # filters
3086 afftfilt_filter_deps="avcodec"
3087 afftfilt_filter_select="fft"
3088 amovie_filter_deps="avcodec avformat"
3089 aresample_filter_deps="swresample"
3090 ass_filter_deps="libass"
3091 atempo_filter_deps="avcodec"
3092 atempo_filter_select="rdft"
3093 azmq_filter_deps="libzmq"
3094 blackframe_filter_deps="gpl"
3095 boxblur_filter_deps="gpl"
3096 bs2b_filter_deps="libbs2b"
3097 colormatrix_filter_deps="gpl"
3098 cover_rect_filter_deps="avcodec avformat gpl"
3099 cropdetect_filter_deps="gpl"
3100 deinterlace_qsv_filter_deps="libmfx"
3101 deinterlace_vaapi_filter_deps="vaapi"
3102 delogo_filter_deps="gpl"
3103 deshake_filter_select="pixelutils"
3104 drawtext_filter_deps="libfreetype"
3105 eq_filter_deps="gpl"
3106 fftfilt_filter_deps="avcodec"
3107 fftfilt_filter_select="rdft"
3108 find_rect_filter_deps="avcodec avformat gpl"
3109 firequalizer_filter_deps="avcodec"
3110 firequalizer_filter_select="rdft"
3111 flite_filter_deps="libflite"
3112 framerate_filter_select="pixelutils"
3113 frei0r_filter_deps="frei0r dlopen"
3114 frei0r_src_filter_deps="frei0r dlopen"
3115 fspp_filter_deps="gpl"
3116 geq_filter_deps="gpl"
3117 histeq_filter_deps="gpl"
3118 hqdn3d_filter_deps="gpl"
3119 interlace_filter_deps="gpl"
3120 kerndeint_filter_deps="gpl"
3121 ladspa_filter_deps="ladspa dlopen"
3122 mcdeint_filter_deps="avcodec gpl"
3123 movie_filter_deps="avcodec avformat"
3124 mpdecimate_filter_deps="gpl"
3125 mpdecimate_filter_select="pixelutils"
3126 mptestsrc_filter_deps="gpl"
3127 negate_filter_deps="lut_filter"
3128 nnedi_filter_deps="gpl"
3129 ocr_filter_deps="libtesseract"
3130 ocv_filter_deps="libopencv"
3131 owdenoise_filter_deps="gpl"
3132 pan_filter_deps="swresample"
3133 perspective_filter_deps="gpl"
3134 phase_filter_deps="gpl"
3135 pp7_filter_deps="gpl"
3136 pp_filter_deps="gpl postproc"
3137 pullup_filter_deps="gpl"
3138 removelogo_filter_deps="avcodec avformat swscale"
3139 repeatfields_filter_deps="gpl"
3140 resample_filter_deps="avresample"
3141 rubberband_filter_deps="librubberband"
3142 sab_filter_deps="gpl swscale"
3143 scale2ref_filter_deps="swscale"
3144 scale_filter_deps="swscale"
3145 scale_qsv_filter_deps="libmfx"
3146 select_filter_select="pixelutils"
3147 showcqt_filter_deps="avcodec avformat swscale"
3148 showcqt_filter_select="fft"
3149 showfreqs_filter_deps="avcodec"
3150 showfreqs_filter_select="fft"
3151 showspectrum_filter_deps="avcodec"
3152 showspectrum_filter_select="fft"
3153 showspectrumpic_filter_deps="avcodec"
3154 showspectrumpic_filter_select="fft"
3155 signature_filter_deps="gpl avcodec avformat"
3156 smartblur_filter_deps="gpl swscale"
3157 sofalizer_filter_deps="netcdf avcodec"
3158 sofalizer_filter_select="fft"
3159 spectrumsynth_filter_deps="avcodec"
3160 spectrumsynth_filter_select="fft"
3161 spp_filter_deps="gpl avcodec"
3162 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3163 stereo3d_filter_deps="gpl"
3164 subtitles_filter_deps="avformat avcodec libass"
3165 super2xsai_filter_deps="gpl"
3166 pixfmts_super2xsai_test_deps="super2xsai_filter"
3167 tinterlace_filter_deps="gpl"
3168 tinterlace_merge_test_deps="tinterlace_filter"
3169 tinterlace_pad_test_deps="tinterlace_filter"
3170 uspp_filter_deps="gpl avcodec"
3171 vaguedenoiser_filter_deps="gpl"
3172 vidstabdetect_filter_deps="libvidstab"
3173 vidstabtransform_filter_deps="libvidstab"
3174 zmq_filter_deps="libzmq"
3175 zoompan_filter_deps="swscale"
3176 zscale_filter_deps="libzimg"
3177 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3178
3179 # examples
3180 avio_dir_cmd_deps="avformat avutil"
3181 avio_reading_deps="avformat avcodec avutil"
3182 decode_audio_example_deps="avcodec avutil"
3183 decode_video_example_deps="avcodec avutil"
3184 demuxing_decoding_example_deps="avcodec avformat avutil"
3185 encode_audio_example_deps="avcodec avutil"
3186 encode_video_example_deps="avcodec avutil"
3187 extract_mvs_example_deps="avcodec avformat avutil"
3188 filter_audio_example_deps="avfilter avutil"
3189 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3190 filtering_video_example_deps="avfilter avcodec avformat avutil"
3191 http_multiclient_example_deps="avformat avutil fork"
3192 metadata_example_deps="avformat avutil"
3193 muxing_example_deps="avcodec avformat avutil swscale"
3194 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3195 remuxing_example_deps="avcodec avformat avutil"
3196 resampling_audio_example_deps="avutil swresample"
3197 scaling_video_example_deps="avutil swscale"
3198 transcode_aac_example_deps="avcodec avformat swresample"
3199 transcoding_example_deps="avfilter avcodec avformat avutil"
3200
3201 # libraries, in linking order
3202 avcodec_deps="avutil"
3203 avdevice_deps="avformat avcodec avutil"
3204 avfilter_deps="avutil"
3205 avformat_deps="avcodec avutil"
3206 avresample_deps="avutil"
3207 postproc_deps="avutil gpl"
3208 swresample_deps="avutil"
3209 swscale_deps="avutil"
3210
3211 # programs
3212 ffmpeg_deps="avcodec avfilter avformat swresample"
3213 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3214                null_filter
3215                trim_filter"
3216 ffplay_deps="avcodec avformat swscale swresample sdl2"
3217 ffplay_libs='$sdl2_libs'
3218 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3219 ffprobe_deps="avcodec avformat"
3220 ffserver_deps="avformat fork sarestart"
3221 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3222
3223 # documentation
3224 podpages_deps="perl"
3225 manpages_deps="perl pod2man"
3226 htmlpages_deps="perl"
3227 htmlpages_deps_any="makeinfo_html texi2html"
3228 txtpages_deps="perl makeinfo"
3229 doc_deps_any="manpages htmlpages podpages txtpages"
3230
3231 # default parameters
3232
3233 logfile="config.log"
3234
3235 # installation paths
3236 prefix_default="/usr/local"
3237 bindir_default='${prefix}/bin'
3238 datadir_default='${prefix}/share/ffmpeg'
3239 docdir_default='${prefix}/share/doc/ffmpeg'
3240 incdir_default='${prefix}/include'
3241 libdir_default='${prefix}/lib'
3242 mandir_default='${prefix}/share/man'
3243
3244 # toolchain
3245 ar_default="ar"
3246 cc_default="gcc"
3247 cxx_default="g++"
3248 host_cc_default="gcc"
3249 doxygen_default="doxygen"
3250 install="install"
3251 ln_s_default="ln -s -f"
3252 nm_default="nm -g"
3253 objformat="elf"
3254 pkg_config_default=pkg-config
3255 ranlib_default="ranlib"
3256 strip_default="strip"
3257 version_script='--version-script'
3258 yasmexe_default="yasm"
3259 windres_default="windres"
3260
3261 # OS
3262 target_os_default=$(tolower $(uname -s))
3263 host_os=$target_os_default
3264
3265 # machine
3266 if test "$target_os_default" = aix; then
3267     arch_default=$(uname -p)
3268     strip_default="strip -X32_64"
3269 else
3270     arch_default=$(uname -m)
3271 fi
3272 cpu="generic"
3273 intrinsics="none"
3274
3275 # configurable options
3276 enable $PROGRAM_LIST
3277 enable $DOCUMENT_LIST
3278 enable $EXAMPLE_LIST
3279 enable $(filter_out avresample $LIBRARY_LIST)
3280 enable stripping
3281
3282 enable asm
3283 enable debug
3284 enable doc
3285 enable faan faandct faanidct
3286 enable optimizations
3287 enable runtime_cpudetect
3288 enable safe_bitstream_reader
3289 enable static
3290 enable swscale_alpha
3291 enable valgrind_backtrace
3292
3293 sws_max_filter_size_default=256
3294 set_default sws_max_filter_size
3295
3296 # build settings
3297 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3298 LIBPREF="lib"
3299 LIBSUF=".a"
3300 FULLNAME='$(NAME)$(BUILDSUF)'
3301 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3302 SLIBPREF="lib"
3303 SLIBSUF=".so"
3304 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3305 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3306 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3307 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3308 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3309 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3310 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3311
3312 asflags_filter=echo
3313 cflags_filter=echo
3314 ldflags_filter=echo
3315
3316 AS_C='-c'
3317 AS_O='-o $@'
3318 CC_C='-c'
3319 CC_E='-E -o $@'
3320 CC_O='-o $@'
3321 CXX_C='-c'
3322 CXX_O='-o $@'
3323 OBJCC_C='-c'
3324 OBJCC_E='-E -o $@'
3325 OBJCC_O='-o $@'
3326 LD_O='-o $@'
3327 LD_LIB='-l%'
3328 LD_PATH='-L'
3329 HOSTCC_C='-c'
3330 HOSTCC_E='-E -o $@'
3331 HOSTCC_O='-o $@'
3332 HOSTLD_O='-o $@'
3333
3334 host_libs='-lm'
3335 host_cflags_filter=echo
3336 host_ldflags_filter=echo
3337
3338 target_path='$(CURDIR)'
3339
3340 # since the object filename is not given with the -MM flag, the compiler
3341 # is only able to print the basename, and we must add the path ourselves
3342 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3343 DEPFLAGS='-MM'
3344
3345 # find source path
3346 if test -f configure; then
3347     source_path=.
3348 else
3349     source_path=$(cd $(dirname "$0"); pwd)
3350     case "$source_path" in
3351         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3352     esac
3353     test -e "$source_path/config.h" &&
3354         die "Out of tree builds are impossible with config.h in source dir."
3355 fi
3356
3357 for v in "$@"; do
3358     r=${v#*=}
3359     l=${v%"$r"}
3360     r=$(sh_quote "$r")
3361     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3362 done
3363
3364 find_things(){
3365     thing=$1
3366     pattern=$2
3367     file=$source_path/$3
3368     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3369 }
3370
3371 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3372 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3373 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3374 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3375 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3376 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3377 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3378 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3379 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3380
3381 find_things_extern(){
3382     thing=$1
3383     pattern=$2
3384     file=$source_path/$3
3385     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3386 }
3387
3388 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3389 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3390
3391 ALL_COMPONENTS="
3392     $BSF_LIST
3393     $DECODER_LIST
3394     $DEMUXER_LIST
3395     $ENCODER_LIST
3396     $FILTER_LIST
3397     $HWACCEL_LIST
3398     $INDEV_LIST
3399     $MUXER_LIST
3400     $OUTDEV_LIST
3401     $PARSER_LIST
3402     $PROTOCOL_LIST
3403 "
3404
3405 for n in $COMPONENT_LIST; do
3406     v=$(toupper ${n%s})_LIST
3407     eval enable \$$v
3408     eval ${n}_if_any="\$$v"
3409 done
3410
3411 enable $ARCH_EXT_LIST
3412
3413 die_unknown(){
3414     echo "Unknown option \"$1\"."
3415     echo "See $0 --help for available options."
3416     exit 1
3417 }
3418
3419 print_in_columns() {
3420     cols=$(expr $ncols / 24)
3421     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3422 }
3423
3424 show_list() {
3425     suffix=_$1
3426     shift
3427     echo $* | sed s/$suffix//g | print_in_columns
3428     exit 0
3429 }
3430
3431 rand_list(){
3432     IFS=', '
3433     set -- $*
3434     unset IFS
3435     for thing; do
3436         comp=${thing%:*}
3437         prob=${thing#$comp}
3438         prob=${prob#:}
3439         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3440         echo "prob ${prob:-0.5}"
3441         printf '%s\n' $comp
3442     done
3443 }
3444
3445 do_random(){
3446     action=$1
3447     shift
3448     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3449     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3450 }
3451
3452 for opt do
3453     optval="${opt#*=}"
3454     case "$opt" in
3455         --extra-ldflags=*)
3456             add_ldflags $optval
3457         ;;
3458         --extra-ldexeflags=*)
3459             add_ldexeflags $optval
3460         ;;
3461         --extra-ldlibflags=*)
3462             add_ldlibflags $optval
3463         ;;
3464         --extra-libs=*)
3465             add_extralibs $optval
3466         ;;
3467         --disable-devices)
3468             disable $INDEV_LIST $OUTDEV_LIST
3469         ;;
3470         --enable-debug=*)
3471             debuglevel="$optval"
3472         ;;
3473         --disable-programs)
3474             disable $PROGRAM_LIST
3475         ;;
3476         --disable-everything)
3477             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3478         ;;
3479         --disable-all)
3480             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3481             disable $LIBRARY_LIST $PROGRAM_LIST doc
3482             enable avutil
3483         ;;
3484         --enable-random|--disable-random)
3485             action=${opt%%-random}
3486             do_random ${action#--} $COMPONENT_LIST
3487         ;;
3488         --enable-random=*|--disable-random=*)
3489             action=${opt%%-random=*}
3490             do_random ${action#--} $optval
3491         ;;
3492         --enable-*=*|--disable-*=*)
3493             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3494             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3495             eval list=\$$(toupper $thing)_LIST
3496             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3497             list=$(filter "$name" $list)
3498             [ "$list" = "" ] && warn "Option $opt did not match anything"
3499             $action $list
3500         ;;
3501         --enable-?*|--disable-?*)
3502             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3503             if is_in $option $COMPONENT_LIST; then
3504                 test $action = disable && action=unset
3505                 eval $action \$$(toupper ${option%s})_LIST
3506             elif is_in $option $CMDLINE_SELECT; then
3507                 $action $option
3508             else
3509                 die_unknown $opt
3510             fi
3511         ;;
3512         --list-*)
3513             NAME="${opt#--list-}"
3514             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3515             NAME=${NAME%s}
3516             eval show_list $NAME \$$(toupper $NAME)_LIST
3517         ;;
3518         --help|-h) show_help
3519         ;;
3520         --quiet|-q) quiet=yes
3521         ;;
3522         --fatal-warnings) enable fatal_warnings
3523         ;;
3524         *)
3525             optname="${opt%%=*}"
3526             optname="${optname#--}"
3527             optname=$(echo "$optname" | sed 's/-/_/g')
3528             if is_in $optname $CMDLINE_SET; then
3529                 eval $optname='$optval'
3530             elif is_in $optname $CMDLINE_APPEND; then
3531                 append $optname "$optval"
3532             else
3533                 die_unknown $opt
3534             fi
3535         ;;
3536     esac
3537 done
3538
3539 for e in $env; do
3540     eval "export $e"
3541 done
3542
3543 # Mark specifically enabled, but normally autodetected libraries as requested.
3544 for lib in $AUTODETECT_LIBS; do
3545     enabled $lib && request $lib
3546 done
3547
3548 # Enable platform codecs by default.
3549 enable_weak audiotoolbox
3550
3551 # Enable hwaccels by default.
3552 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3553 enable_weak xlib
3554
3555 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3556
3557 disabled logging && logfile=/dev/null
3558
3559 die_license_disabled() {
3560     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3561 }
3562
3563 die_license_disabled_gpl() {
3564     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3565 }
3566
3567 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3568 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3569
3570 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3571 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3572
3573 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3574
3575 # Disable all the library-specific components if the library itself
3576 # is disabled, see AVCODEC_LIST and following _LIST variables.
3577
3578 disable_components(){
3579     disabled ${1} && disable $(
3580         eval components="\$$(toupper ${1})_COMPONENTS"
3581         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3582     )
3583 }
3584
3585 map 'disable_components $v' $LIBRARY_LIST
3586
3587 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3588 set >> $logfile
3589
3590 test -n "$valgrind" && toolchain="valgrind-memcheck"
3591
3592 case "$toolchain" in
3593     *-asan)
3594         cc_default="${toolchain%-asan}"
3595         add_cflags  -fsanitize=address
3596         add_ldflags -fsanitize=address
3597     ;;
3598     *-msan)
3599         cc_default="${toolchain%-msan}"
3600         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3601         add_ldflags -fsanitize=memory
3602     ;;
3603     *-tsan)
3604         cc_default="${toolchain%-tsan}"
3605         add_cflags  -fsanitize=thread -fPIE
3606         add_ldflags -fsanitize=thread -pie
3607         case "$toolchain" in
3608             gcc-tsan)
3609                 add_cflags  -fPIC
3610                 add_ldflags -fPIC
3611                 ;;
3612         esac
3613     ;;
3614     *-usan)
3615         cc_default="${toolchain%-usan}"
3616         add_cflags  -fsanitize=undefined
3617         add_ldflags -fsanitize=undefined
3618     ;;
3619     valgrind-*)
3620         target_exec_default="valgrind"
3621         case "$toolchain" in
3622             valgrind-massif)
3623                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3624                 ;;
3625             valgrind-memcheck)
3626                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3627                 ;;
3628         esac
3629     ;;
3630     msvc)
3631         # Check whether the current MSVC version needs the C99 converter.
3632         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3633         # support enough of C99 to build ffmpeg. Default to the new
3634         # behaviour if the regexp was unable to match anything, since this
3635         # successfully parses the version number of existing supported
3636         # versions that require the converter (MSVC 2010 and 2012).
3637         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3638         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3639             cc_default="cl"
3640         else
3641             cc_default="c99wrap cl"
3642         fi
3643         ld_default="$source_path/compat/windows/mslink"
3644         nm_default="dumpbin -symbols"
3645         ar_default="lib"
3646         case "$arch" in
3647         arm*)
3648             as_default="armasm"
3649             ;;
3650         esac
3651         target_os_default="win32"
3652         # Use a relative path for TMPDIR. This makes sure all the
3653         # ffconf temp files are written with a relative path, avoiding
3654         # issues with msys/win32 path conversion for MSVC parameters
3655         # such as -Fo<file> or -out:<file>.
3656         TMPDIR=.
3657     ;;
3658     icl)
3659         cc_default="icl"
3660         ld_default="xilink"
3661         nm_default="dumpbin -symbols"
3662         ar_default="xilib"
3663         target_os_default="win32"
3664         TMPDIR=.
3665     ;;
3666     gcov)
3667         add_cflags  -fprofile-arcs -ftest-coverage
3668         add_ldflags -fprofile-arcs -ftest-coverage
3669     ;;
3670     llvm-cov)
3671         add_cflags -fprofile-arcs -ftest-coverage
3672         add_ldflags --coverage
3673     ;;
3674     hardened)
3675         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3676         add_cflags   -fno-strict-overflow -fstack-protector-all
3677         add_ldflags  -Wl,-z,relro -Wl,-z,now
3678         add_cflags   -fPIE
3679         add_ldexeflags -fPIE -pie
3680     ;;
3681     ?*)
3682         die "Unknown toolchain $toolchain"
3683     ;;
3684 esac
3685
3686 test -n "$cross_prefix" && enable cross_compile
3687
3688 if enabled cross_compile; then
3689     test -n "$arch" && test -n "$target_os" ||
3690         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3691 fi
3692
3693 ar_default="${cross_prefix}${ar_default}"
3694 cc_default="${cross_prefix}${cc_default}"
3695 cxx_default="${cross_prefix}${cxx_default}"
3696 nm_default="${cross_prefix}${nm_default}"
3697 pkg_config_default="${cross_prefix}${pkg_config_default}"
3698 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3699     ranlib_default="${cross_prefix}${ranlib_default} -D"
3700 else
3701     ranlib_default="${cross_prefix}${ranlib_default}"
3702 fi
3703 strip_default="${cross_prefix}${strip_default}"
3704 windres_default="${cross_prefix}${windres_default}"
3705
3706 sysinclude_default="${sysroot}/usr/include"
3707
3708 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3709     target_exec target_os yasmexe
3710 enabled cross_compile || host_cc_default=$cc
3711 set_default host_cc
3712
3713 pkg_config_fail_message=""
3714 if ! $pkg_config --version >/dev/null 2>&1; then
3715     warn "$pkg_config not found, library detection may fail."
3716     pkg_config=false
3717 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3718     pkg_config_fail_message="
3719 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3720 fi
3721
3722 if test $doxygen != $doxygen_default && \
3723   ! $doxygen --version >/dev/null 2>&1; then
3724     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3725 fi
3726
3727 exesuf() {
3728     case $1 in
3729         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3730     esac
3731 }
3732
3733 EXESUF=$(exesuf $target_os)
3734 HOSTEXESUF=$(exesuf $host_os)
3735
3736 # set temporary file name
3737 : ${TMPDIR:=$TEMPDIR}
3738 : ${TMPDIR:=$TMP}
3739 : ${TMPDIR:=/tmp}
3740
3741 if [ -n "$tempprefix" ] ; then
3742     mktemp(){
3743         echo $tempprefix.${HOSTNAME}.${UID}
3744     }
3745 elif ! check_cmd mktemp -u XXXXXX; then
3746     # simple replacement for missing mktemp
3747     # NOT SAFE FOR GENERAL USE
3748     mktemp(){
3749         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3750     }
3751 fi
3752
3753 tmpfile(){
3754     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3755         (set -C; exec > $tmp) 2>/dev/null ||
3756         die "Unable to create temporary file in $TMPDIR."
3757     append TMPFILES $tmp
3758     eval $1=$tmp
3759 }
3760
3761 trap 'rm -f -- $TMPFILES' EXIT
3762
3763 tmpfile TMPASM .asm
3764 tmpfile TMPC   .c
3765 tmpfile TMPCPP .cpp
3766 tmpfile TMPE   $EXESUF
3767 tmpfile TMPH   .h
3768 tmpfile TMPM   .m
3769 tmpfile TMPO   .o
3770 tmpfile TMPS   .S
3771 tmpfile TMPSH  .sh
3772 tmpfile TMPV   .ver
3773
3774 unset -f mktemp
3775
3776 chmod +x $TMPE
3777
3778 # make sure we can execute files in $TMPDIR
3779 cat > $TMPSH 2>> $logfile <<EOF
3780 #! /bin/sh
3781 EOF
3782 chmod +x $TMPSH >> $logfile 2>&1
3783 if ! $TMPSH >> $logfile 2>&1; then
3784     cat <<EOF
3785 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3786 variable to another directory and make sure that it is not mounted noexec.
3787 EOF
3788     die "Sanity test failed."
3789 fi
3790
3791 armasm_flags(){
3792     for flag; do
3793         case $flag in
3794             # Filter out MSVC cl.exe options from cflags that shouldn't
3795             # be passed to gas-preprocessor
3796             -M[TD]*)                                            ;;
3797             *)                  echo $flag                      ;;
3798         esac
3799    done
3800 }
3801
3802 ccc_flags(){
3803     for flag; do
3804         case $flag in
3805             -std=c99)           echo -c99                       ;;
3806             -mcpu=*)            echo -arch ${flag#*=}           ;;
3807             -mieee)             echo -ieee                      ;;
3808             -O*|-fast)          echo $flag                      ;;
3809             -fno-math-errno)    echo -assume nomath_errno       ;;
3810             -g)                 echo -g3                        ;;
3811             -Wall)              echo -msg_enable level2         ;;
3812             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3813             -Wl,*)              echo $flag                      ;;
3814             -f*|-W*)                                            ;;
3815             *)                  echo $flag                      ;;
3816         esac
3817    done
3818 }
3819
3820 cparser_flags(){
3821     for flag; do
3822         case $flag in
3823             -Wno-switch)             echo -Wno-switch-enum ;;
3824             -Wno-format-zero-length) ;;
3825             -Wdisabled-optimization) ;;
3826             -Wno-pointer-sign)       echo -Wno-other ;;
3827             *)                       echo $flag ;;
3828         esac
3829     done
3830 }
3831
3832 msvc_common_flags(){
3833     for flag; do
3834         case $flag in
3835             # In addition to specifying certain flags under the compiler
3836             # specific filters, they must be specified here as well or else the
3837             # generic catch all at the bottom will print the original flag.
3838             -Wall)                ;;
3839             -std=c99)             ;;
3840             # Common flags
3841             -fomit-frame-pointer) ;;
3842             -g)                   echo -Z7 ;;
3843             -fno-math-errno)      ;;
3844             -fno-common)          ;;
3845             -fno-signed-zeros)    ;;
3846             -fPIC)                ;;
3847             -mthumb)              ;;
3848             -march=*)             ;;
3849             -lz)                  echo zlib.lib ;;
3850             -lavicap32)           echo vfw32.lib user32.lib ;;
3851             -lx264)               echo libx264.lib ;;
3852             -l*)                  echo ${flag#-l}.lib ;;
3853             -LARGEADDRESSAWARE)   echo $flag ;;
3854             -L*)                  echo -libpath:${flag#-L} ;;
3855             *)                    echo $flag ;;
3856         esac
3857     done
3858 }
3859
3860 msvc_flags(){
3861     msvc_common_flags "$@"
3862     for flag; do
3863         case $flag in
3864             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3865                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3866                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3867                                        -wd4307 \
3868                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3869         esac
3870     done
3871 }
3872
3873 icl_flags(){
3874     msvc_common_flags "$@"
3875     for flag; do
3876         case $flag in
3877             # Despite what Intel's documentation says -Wall, which is supported
3878             # on Windows, does enable remarks so disable them here.
3879             -Wall)                echo $flag -Qdiag-disable:remark ;;
3880             -std=c99)             echo -Qstd=c99 ;;
3881             -flto)                echo -ipo ;;
3882         esac
3883     done
3884 }
3885
3886 icc_flags(){
3887     for flag; do
3888         case $flag in
3889             -flto)                echo -ipo ;;
3890             *)                    echo $flag ;;
3891         esac
3892     done
3893 }
3894
3895 pgi_flags(){
3896     for flag; do
3897         case $flag in
3898             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3899             -fomit-frame-pointer) echo -Mnoframe ;;
3900             -g)                   echo -gopt ;;
3901             *)                    echo $flag ;;
3902         esac
3903     done
3904 }
3905
3906 suncc_flags(){
3907     for flag; do
3908         case $flag in
3909             -march=*|-mcpu=*)
3910                 case "${flag#*=}" in
3911                     native)                   echo -xtarget=native       ;;
3912                     v9|niagara)               echo -xarch=sparc          ;;
3913                     ultrasparc)               echo -xarch=sparcvis       ;;
3914                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3915                     i586|pentium)             echo -xchip=pentium        ;;
3916                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3917                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3918                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3919                     pentium4*)          echo -xtarget=pentium4           ;;
3920                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3921                     *-sse3)             echo -xarch=sse3                 ;;
3922                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3923                     bonnell)                   echo -xarch=ssse3         ;;
3924                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3925                     westmere)                  echo -xtarget=westmere    ;;
3926                     silvermont)                echo -xarch=sse4_2        ;;
3927                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3928                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3929                                                echo -xarch=avx           ;;
3930                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3931                     btver1)                    echo -xarch=amdsse4a      ;;
3932                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3933                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3934                     k8|opteron|athlon64|athlon-fx)
3935                                                echo -xarch=sse2a         ;;
3936                     athlon*)                   echo -xarch=pentium_proa  ;;
3937                 esac
3938                 ;;
3939             -std=c99)             echo -xc99              ;;
3940             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3941             -fPIC)                echo -KPIC -xcode=pic32 ;;
3942             -W*,*)                echo $flag              ;;
3943             -f*-*|-W*|-mimpure-text)                      ;;
3944             -shared)              echo -G                 ;;
3945             *)                    echo $flag              ;;
3946         esac
3947     done
3948 }
3949
3950 tms470_flags(){
3951     for flag; do
3952         case $flag in
3953             -march=*|-mcpu=*)
3954                 case "${flag#*=}" in
3955                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3956                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3957                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3958                     armv6*|arm11*)          echo -mv=6   ;;
3959                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3960                                             echo -mv=5e  ;;
3961                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3962                 esac
3963                 ;;
3964             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3965             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3966             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3967             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3968             -msoft-float)   echo --float_support=vfplib       ;;
3969             -O[0-3]|-mf=*)  echo $flag                        ;;
3970             -g)             echo -g -mn                       ;;
3971             -pds=*)         echo $flag                        ;;
3972             -D*|-I*)        echo $flag                        ;;
3973             --gcc|--abi=*)  echo $flag                        ;;
3974             -me)            echo $flag                        ;;
3975         esac
3976     done
3977 }
3978
3979 probe_cc(){
3980     pfx=$1
3981     _cc=$2
3982     first=$3
3983
3984     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3985     unset _ld_o _ldflags _ld_lib _ld_path
3986     unset _depflags _DEPCMD _DEPFLAGS
3987     _flags_filter=echo
3988
3989     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3990         true # no-op to avoid reading stdin in following checks
3991     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3992         _type=llvm_gcc
3993         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3994         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3995         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3996         _cflags_speed='-O3'
3997         _cflags_size='-Os'
3998     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3999         _type=gcc
4000         gcc_version=$($_cc --version | head -n1)
4001         gcc_basever=$($_cc -dumpversion)
4002         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4003         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4004         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4005         case $gcc_basever in
4006             2) ;;
4007             2.*) ;;
4008             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4009         esac
4010         if [ "$first" = true ]; then
4011             case $gcc_basever in
4012                 4.2*)
4013                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4014             esac
4015         fi
4016         _cflags_speed='-O3'
4017         _cflags_size='-Os'
4018     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4019         _type=icc
4020         _ident=$($_cc --version | head -n1)
4021         _depflags='-MMD'
4022         _cflags_speed='-O3'
4023         _cflags_size='-Os'
4024         _cflags_noopt='-O1'
4025         _flags_filter=icc_flags
4026     elif $_cc -v 2>&1 | grep -q xlc; then
4027         _type=xlc
4028         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4029         _cflags_speed='-O5'
4030         _cflags_size='-O5 -qcompact'
4031     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4032         _type=ccc
4033         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4034         _DEPFLAGS='-M'
4035         _cflags_speed='-fast'
4036         _cflags_size='-O1'
4037         _flags_filter=ccc_flags
4038     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4039         test -d "$sysroot" || die "No valid sysroot specified."
4040         _type=armcc
4041         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4042         armcc_conf="$PWD/armcc.conf"
4043         $_cc --arm_linux_configure                 \
4044              --arm_linux_config_file="$armcc_conf" \
4045              --configure_sysroot="$sysroot"        \
4046              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4047              die "Error creating armcc configuration file."
4048         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4049         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4050         as_default="${cross_prefix}gcc"
4051         _depflags='-MMD'
4052         _cflags_speed='-O3'
4053         _cflags_size='-Os'
4054     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4055         _type=tms470
4056         _ident=$($_cc -version | head -n1 | tr -s ' ')
4057         _flags='--gcc --abi=eabi -me'
4058         _cc_e='-ppl -fe=$@'
4059         _cc_o='-fe=$@'
4060         _depflags='-ppa -ppd=$(@:.o=.d)'
4061         _cflags_speed='-O3 -mf=5'
4062         _cflags_size='-O3 -mf=2'
4063         _flags_filter=tms470_flags
4064     elif $_cc -v 2>&1 | grep -q clang; then
4065         _type=clang
4066         _ident=$($_cc --version 2>/dev/null | head -n1)
4067         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4068         _cflags_speed='-O3'
4069         _cflags_size='-Oz'
4070     elif $_cc -V 2>&1 | grep -q Sun; then
4071         _type=suncc
4072         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4073         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4074         _DEPFLAGS='-xM1 -xc99'
4075         _ldflags='-std=c99'
4076         _cflags_speed='-O5'
4077         _cflags_size='-O5 -xspace'
4078         _flags_filter=suncc_flags
4079     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4080         _type=pathscale
4081         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4082         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4083         _cflags_speed='-O2'
4084         _cflags_size='-Os'
4085         _flags_filter='filter_out -Wdisabled-optimization'
4086     elif $_cc -v 2>&1 | grep -q Open64; then
4087         _type=open64
4088         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4089         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4090         _cflags_speed='-O2'
4091         _cflags_size='-Os'
4092         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4093     elif $_cc -V 2>&1 | grep -q Portland; then
4094         _type=pgi
4095         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4096         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4097         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4098         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4099         _cflags_noopt="-O"
4100         _flags_filter=pgi_flags
4101     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4102         _type=armasm
4103         _ident=$($_cc | head -n1)
4104         # 4509: "This form of conditional instruction is deprecated"
4105         _flags="-nologo -ignore 4509"
4106         _flags_filter=armasm_flags
4107     elif $_cc 2>&1 | grep -q Intel; then
4108         _type=icl
4109         _ident=$($_cc 2>&1 | head -n1)
4110         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4111         # Not only is O3 broken on 13.x+ but it is slower on all previous
4112         # versions (tested) as well.
4113         _cflags_speed="-O2"
4114         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4115         if $_cc 2>&1 | grep -q Linker; then
4116             _ld_o='-out:$@'
4117         else
4118             _ld_o='-Fe$@'
4119         fi
4120         _cc_o='-Fo$@'
4121         _cc_e='-P'
4122         _flags_filter=icl_flags
4123         _ld_lib='lib%.a'
4124         _ld_path='-libpath:'
4125         # -Qdiag-error to make icl error when seeing certain unknown arguments
4126         _flags='-nologo -Qdiag-error:4044,10157'
4127         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4128         # with MSVC which enables it by default.
4129         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4130         disable stripping
4131     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4132         # lld can emulate multiple different linkers; in ms link.exe mode,
4133         # the -? parameter gives the help output which contains an identifyable
4134         # string, while it gives an error in other modes.
4135         _type=lld-link
4136         # The link.exe mode doesn't have a switch for getting the version,
4137         # but we can force it back to gnu mode and get the version from there.
4138         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4139         _ld_o='-out:$@'
4140         _flags_filter=msvc_flags
4141         _ld_lib='lib%.a'
4142         _ld_path='-libpath:'
4143     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4144         _type=msvc
4145         _ident=$($_cc 2>&1 | head -n1)
4146         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4147         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4148         _cflags_speed="-O2"
4149         _cflags_size="-O1"
4150         if $_cc -nologo- 2>&1 | grep -q Linker; then
4151             _ld_o='-out:$@'
4152         else
4153             _ld_o='-Fe$@'
4154         fi
4155         _cc_o='-Fo$@'
4156         _cc_e='-P -Fi$@'
4157         _flags_filter=msvc_flags
4158         _ld_lib='lib%.a'
4159         _ld_path='-libpath:'
4160         _flags='-nologo'
4161         disable stripping
4162     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4163         _type=cparser
4164         _ident=$($_cc --version | head -n1)
4165         _depflags='-MMD'
4166         _cflags_speed='-O4'
4167         _cflags_size='-O2'
4168         _flags_filter=cparser_flags
4169     fi
4170
4171     eval ${pfx}_type=\$_type
4172     eval ${pfx}_ident=\$_ident
4173 }
4174
4175 set_ccvars(){
4176     eval ${1}_C=\${_cc_c-\${${1}_C}}
4177     eval ${1}_E=\${_cc_e-\${${1}_E}}
4178     eval ${1}_O=\${_cc_o-\${${1}_O}}
4179
4180     if [ -n "$_depflags" ]; then
4181         eval ${1}_DEPFLAGS=\$_depflags
4182     else
4183         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4184         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4185         eval DEP${1}FLAGS=\$_flags
4186     fi
4187 }
4188
4189 probe_cc cc "$cc" "true"
4190 cflags_filter=$_flags_filter
4191 cflags_speed=$_cflags_speed
4192 cflags_size=$_cflags_size
4193 cflags_noopt=$_cflags_noopt
4194 add_cflags $_flags $_cflags
4195 cc_ldflags=$_ldflags
4196 set_ccvars CC
4197
4198 probe_cc hostcc "$host_cc"
4199 host_cflags_filter=$_flags_filter
4200 add_host_cflags  $_flags $_cflags
4201 set_ccvars HOSTCC
4202
4203 test -n "$cc_type" && enable $cc_type ||
4204     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4205
4206 : ${as_default:=$cc}
4207 : ${objcc_default:=$cc}
4208 : ${dep_cc_default:=$cc}
4209 : ${ld_default:=$cc}
4210 : ${host_ld_default:=$host_cc}
4211 set_default ar as objcc dep_cc ld ln_s host_ld windres
4212
4213 probe_cc as "$as"
4214 asflags_filter=$_flags_filter
4215 add_asflags $_flags $_cflags
4216 set_ccvars AS
4217
4218 probe_cc objcc "$objcc"
4219 objcflags_filter=$_flags_filter
4220 add_objcflags $_flags $_cflags
4221 set_ccvars OBJC
4222
4223 probe_cc ld "$ld"
4224 ldflags_filter=$_flags_filter
4225 add_ldflags $_flags $_ldflags
4226 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4227 LD_O=${_ld_o-$LD_O}
4228 LD_LIB=${_ld_lib-$LD_LIB}
4229 LD_PATH=${_ld_path-$LD_PATH}
4230
4231 probe_cc hostld "$host_ld"
4232 host_ldflags_filter=$_flags_filter
4233 add_host_ldflags $_flags $_ldflags
4234 HOSTLD_O=${_ld_o-$HOSTLD_O}
4235
4236 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4237     probe_cc depcc "$dep_cc"
4238     CCDEP=${_DEPCMD:-$DEPCMD}
4239     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4240     DEPCCFLAGS=$_flags
4241 fi
4242
4243 if $ar 2>&1 | grep -q Microsoft; then
4244     arflags="-nologo"
4245     ar_o='-out:$@'
4246 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4247     arflags="rq"
4248     ar_o='$@'
4249 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4250     arflags='-Xany -r -c'
4251     ar_o='$@'
4252 elif $ar 2>&1 | grep -q "\[D\] "; then
4253     arflags="rcD"
4254     ar_o='$@'
4255 else
4256     arflags="rc"
4257     ar_o='$@'
4258 fi
4259
4260 add_cflags $extra_cflags
4261 add_cxxflags $extra_cxxflags
4262 add_objcflags $extra_objcflags
4263 add_asflags $extra_cflags
4264
4265 if test -n "$sysroot"; then
4266     case "$cc_type" in
4267         gcc|llvm_gcc|clang)
4268             add_cppflags --sysroot="$sysroot"
4269             add_ldflags --sysroot="$sysroot"
4270 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4271             add_cppflags -isysroot "$sysroot"
4272             add_ldflags -isysroot "$sysroot"
4273         ;;
4274         tms470)
4275             add_cppflags -I"$sysinclude"
4276             add_ldflags  --sysroot="$sysroot"
4277         ;;
4278     esac
4279 fi
4280
4281 if test "$cpu" = host; then
4282     enabled cross_compile &&
4283         die "--cpu=host makes no sense when cross-compiling."
4284
4285     case "$cc_type" in
4286         gcc|llvm_gcc)
4287             check_native(){
4288                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4289                 sed -n "/cc1.*$1=/{
4290                             s/.*$1=\\([^ ]*\\).*/\\1/
4291                             p
4292                             q
4293                         }" $TMPE
4294             }
4295             cpu=$(check_native -march || check_native -mcpu)
4296         ;;
4297         clang)
4298             check_native(){
4299                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4300                 sed -n "/cc1.*-target-cpu /{
4301                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4302                             p
4303                             q
4304                         }" $TMPE
4305             }
4306             cpu=$(check_native -march)
4307         ;;
4308     esac
4309
4310     test "${cpu:-host}" = host &&
4311         die "--cpu=host not supported with compiler $cc"
4312 fi
4313
4314 # Deal with common $arch aliases
4315 case "$arch" in
4316     aarch64|arm64)
4317         arch="aarch64"
4318     ;;
4319     arm*|iPad*|iPhone*)
4320         arch="arm"
4321     ;;
4322     mips*|IP*)
4323         case "$arch" in
4324         *el)
4325             add_cppflags -EL
4326             add_ldflags -EL
4327         ;;
4328         *eb)
4329             add_cppflags -EB
4330             add_ldflags -EB
4331         ;;
4332         esac
4333         arch="mips"
4334     ;;
4335     parisc*|hppa*)
4336         arch="parisc"
4337     ;;
4338     "Power Macintosh"|ppc*|powerpc*)
4339         arch="ppc"
4340     ;;
4341     s390|s390x)
4342         arch="s390"
4343     ;;
4344     sh4|sh)
4345         arch="sh4"
4346     ;;
4347     sun4*|sparc*)
4348         arch="sparc"
4349     ;;
4350     tilegx|tile-gx)
4351         arch="tilegx"
4352     ;;
4353     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4354         arch="x86"
4355     ;;
4356 esac
4357
4358 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4359 enable $arch
4360
4361 # Add processor-specific flags
4362 if enabled aarch64; then
4363
4364     case $cpu in
4365         armv*)
4366             cpuflags="-march=$cpu"
4367         ;;
4368         *)
4369             cpuflags="-mcpu=$cpu"
4370         ;;
4371     esac
4372
4373 elif enabled alpha; then
4374
4375     cpuflags="-mcpu=$cpu"
4376
4377 elif enabled arm; then
4378
4379     check_arm_arch() {
4380         check_cpp_condition stddef.h \
4381             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4382             $cpuflags
4383     }
4384
4385     probe_arm_arch() {
4386         if   check_arm_arch 4;        then echo armv4
4387         elif check_arm_arch 4T;       then echo armv4t
4388         elif check_arm_arch 5;        then echo armv5
4389         elif check_arm_arch 5E;       then echo armv5e
4390         elif check_arm_arch 5T;       then echo armv5t
4391         elif check_arm_arch 5TE;      then echo armv5te
4392         elif check_arm_arch 5TEJ;     then echo armv5te
4393         elif check_arm_arch 6;        then echo armv6
4394         elif check_arm_arch 6J;       then echo armv6j
4395         elif check_arm_arch 6K;       then echo armv6k
4396         elif check_arm_arch 6Z;       then echo armv6z
4397         elif check_arm_arch 6ZK;      then echo armv6zk
4398         elif check_arm_arch 6T2;      then echo armv6t2
4399         elif check_arm_arch 7;        then echo armv7
4400         elif check_arm_arch 7A  7_A;  then echo armv7-a
4401         elif check_arm_arch 7S;       then echo armv7-a
4402         elif check_arm_arch 7R  7_R;  then echo armv7-r
4403         elif check_arm_arch 7M  7_M;  then echo armv7-m
4404         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4405         elif check_arm_arch 8A  8_A;  then echo armv8-a
4406         fi
4407     }
4408
4409     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4410
4411     case $cpu in
4412         armv*)
4413             cpuflags="-march=$cpu"
4414             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4415         ;;
4416         *)
4417             cpuflags="-mcpu=$cpu"
4418             case $cpu in
4419                 cortex-a*)                               subarch=armv7a  ;;
4420                 cortex-r*)                               subarch=armv7r  ;;
4421                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4422                 arm11*)                                  subarch=armv6   ;;
4423                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4424                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4425                 *)                             subarch=$(probe_arm_arch) ;;
4426             esac
4427         ;;
4428     esac
4429
4430     case "$subarch" in
4431         armv5t*)    enable fast_clz                ;;
4432         armv[6-8]*)
4433             enable fast_clz
4434             disabled fast_unaligned || enable fast_unaligned
4435             ;;
4436     esac
4437
4438 elif enabled avr32; then
4439
4440     case $cpu in
4441         ap7[02]0[0-2])
4442             subarch="avr32_ap"
4443             cpuflags="-mpart=$cpu"
4444         ;;
4445         ap)
4446             subarch="avr32_ap"
4447             cpuflags="-march=$cpu"
4448         ;;
4449         uc3[ab]*)
4450             subarch="avr32_uc"
4451             cpuflags="-mcpu=$cpu"
4452         ;;
4453         uc)
4454             subarch="avr32_uc"
4455             cpuflags="-march=$cpu"
4456         ;;
4457     esac
4458
4459 elif enabled bfin; then
4460
4461     cpuflags="-mcpu=$cpu"
4462
4463 elif enabled mips; then
4464
4465     cpuflags="-march=$cpu"
4466
4467     if [ "$cpu" != "generic" ]; then
4468         disable mips32r2
4469         disable mips32r5
4470         disable mips64r2
4471         disable mips32r6
4472         disable mips64r6
4473         disable loongson2
4474         disable loongson3
4475
4476         case $cpu in
4477             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4478                 enable mips32r2
4479                 disable msa
4480             ;;
4481             p5600|i6400|p6600)
4482                 disable mipsdsp
4483                 disable mipsdspr2
4484             ;;
4485             loongson*)
4486                 enable loongson2
4487                 enable loongson3
4488                 enable local_aligned_8 local_aligned_16 local_aligned_32
4489                 enable simd_align_16
4490                 enable fast_64bit
4491                 enable fast_clz
4492                 enable fast_cmov
4493                 enable fast_unaligned
4494                 disable aligned_stack
4495                 disable mipsfpu
4496                 disable mipsdsp
4497                 disable mipsdspr2
4498                 case $cpu in
4499                     loongson3*)
4500                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4501                     ;;
4502                     loongson2e)
4503                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4504                     ;;
4505                     loongson2f)
4506                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4507                     ;;
4508                 esac
4509             ;;
4510             *)
4511                 # Unknown CPU. Disable everything.
4512                 warn "unknown CPU. Disabling all MIPS optimizations."
4513                 disable mipsfpu
4514                 disable mipsdsp
4515                 disable mipsdspr2
4516                 disable msa
4517                 disable mmi
4518             ;;
4519         esac
4520
4521         case $cpu in
4522             24kc)
4523                 disable mipsfpu
4524                 disable mipsdsp
4525                 disable mipsdspr2
4526             ;;
4527             24kf*)
4528                 disable mipsdsp
4529                 disable mipsdspr2
4530             ;;
4531             24kec|34kc|1004kc)
4532                 disable mipsfpu
4533                 disable mipsdspr2
4534             ;;
4535             24kef*|34kf*|1004kf*)
4536                 disable mipsdspr2
4537             ;;
4538             74kc)
4539                 disable mipsfpu
4540             ;;
4541             p5600)
4542                 enable mips32r5
4543                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4544             ;;
4545             i6400)
4546                 enable mips64r6
4547                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4548             ;;
4549             p6600)
4550                 enable mips64r6
4551                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4552             ;;
4553         esac
4554     else
4555         # We do not disable anything. Is up to the user to disable the unwanted features.
4556         warn 'generic cpu selected'
4557     fi
4558
4559 elif enabled ppc; then
4560
4561     disable ldbrx
4562
4563     case $(tolower $cpu) in
4564         601|ppc601|powerpc601)
4565             cpuflags="-mcpu=601"
4566             disable altivec
4567         ;;
4568         603*|ppc603*|powerpc603*)
4569             cpuflags="-mcpu=603"
4570             disable altivec
4571         ;;
4572         604*|ppc604*|powerpc604*)
4573             cpuflags="-mcpu=604"
4574             disable altivec
4575         ;;
4576         g3|75*|ppc75*|powerpc75*)
4577             cpuflags="-mcpu=750"
4578             disable altivec
4579         ;;
4580         g4|745*|ppc745*|powerpc745*)
4581             cpuflags="-mcpu=7450"
4582             disable vsx
4583         ;;
4584         74*|ppc74*|powerpc74*)
4585             cpuflags="-mcpu=7400"
4586             disable vsx
4587         ;;
4588         g5|970|ppc970|powerpc970)
4589             cpuflags="-mcpu=970"
4590             disable vsx
4591         ;;
4592         power[3-6]*)
4593             cpuflags="-mcpu=$cpu"
4594             disable vsx
4595         ;;
4596         power[7-8]*)
4597             cpuflags="-mcpu=$cpu"
4598         ;;
4599         cell)
4600             cpuflags="-mcpu=cell"
4601             enable ldbrx
4602             disable vsx
4603         ;;
4604         e500mc)
4605             cpuflags="-mcpu=e500mc"
4606             disable altivec
4607         ;;
4608         e500v2)
4609             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4610             disable altivec
4611             disable dcbzl
4612         ;;
4613         e500)
4614             cpuflags="-mcpu=8540 -mhard-float"
4615             disable altivec
4616             disable dcbzl
4617         ;;
4618     esac
4619
4620 elif enabled sparc; then
4621
4622     case $cpu in
4623         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4624             cpuflags="-mcpu=$cpu"
4625         ;;
4626         ultrasparc*|niagara[234])
4627             cpuflags="-mcpu=$cpu"
4628         ;;
4629     esac
4630
4631 elif enabled x86; then
4632
4633     case $cpu in
4634         i[345]86|pentium)
4635             cpuflags="-march=$cpu"
4636             disable i686
4637             disable mmx
4638         ;;
4639         # targets that do NOT support nopl and conditional mov (cmov)
4640         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4641             cpuflags="-march=$cpu"
4642             disable i686
4643         ;;
4644         # targets that do support nopl and conditional mov (cmov)
4645         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4646         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4647         |amdfam10|barcelona|b[dt]ver*|znver*)
4648             cpuflags="-march=$cpu"
4649             enable i686
4650             enable fast_cmov
4651         ;;
4652         # targets that do support conditional mov but on which it's slow
4653         pentium4|pentium4m|prescott|nocona)
4654             cpuflags="-march=$cpu"
4655             enable i686
4656             disable fast_cmov
4657         ;;
4658     esac
4659
4660 fi
4661
4662 if [ "$cpu" != generic ]; then
4663     add_cflags  $cpuflags
4664     add_asflags $cpuflags
4665     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4666 fi
4667
4668 # compiler sanity check
4669 check_exec <<EOF
4670 int main(void){ return 0; }
4671 EOF
4672 if test "$?" != 0; then
4673     echo "$cc is unable to create an executable file."
4674     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4675         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4676         echo "Only do this if you know what cross compiling means."
4677     fi
4678     die "C compiler test failed."
4679 fi
4680
4681 add_cppflags -D_ISOC99_SOURCE
4682 add_cxxflags -D__STDC_CONSTANT_MACROS
4683 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4684
4685 # some compilers silently accept -std=c11, so we also need to check that the
4686 # version macro is defined properly
4687 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4688     add_cflags -std=c11
4689 else
4690     check_cflags -std=c99
4691 fi
4692
4693 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4694 #include <stdlib.h>
4695 EOF
4696 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4697 #include <stdlib.h>
4698 EOF
4699
4700 add_host_cppflags -D_ISOC99_SOURCE
4701 check_host_cflags -std=c99
4702 check_host_cflags -Wall
4703 check_host_cflags -O3
4704
4705 check_64bit(){
4706     arch32=$1
4707     arch64=$2
4708     expr=$3
4709     check_code cc "" "int test[2*($expr) - 1]" &&
4710         subarch=$arch64 || subarch=$arch32
4711 }
4712
4713 case "$arch" in
4714     aarch64|alpha|ia64)
4715         spic=$shared
4716     ;;
4717     mips)
4718         check_64bit mips mips64 '_MIPS_SIM > 1'
4719         spic=$shared
4720     ;;
4721     parisc)
4722         check_64bit parisc parisc64 'sizeof(void *) > 4'
4723         spic=$shared
4724     ;;
4725     ppc)
4726         check_64bit ppc ppc64 'sizeof(void *) > 4'
4727         spic=$shared
4728     ;;
4729     s390)
4730         check_64bit s390 s390x 'sizeof(void *) > 4'
4731         spic=$shared
4732     ;;
4733     sparc)
4734         check_64bit sparc sparc64 'sizeof(void *) > 4'
4735         spic=$shared
4736     ;;
4737     x86)
4738         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4739         # Treat x32 as x64 for now. Note it also needs spic=$shared
4740         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4741             subarch=x86_64
4742         if test "$subarch" = "x86_64"; then
4743             spic=$shared
4744         fi
4745     ;;
4746     ppc)
4747         check_cc <<EOF && subarch="ppc64"
4748         int test[(int)sizeof(char*) - 7];
4749 EOF
4750     ;;
4751 esac
4752
4753 enable $subarch
4754 enabled spic && enable_weak pic
4755
4756 # OS specific
4757 case $target_os in
4758     aix)
4759         SHFLAGS=-shared
4760         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4761         enabled shared && add_ldflags -Wl,-brtl
4762         ;;
4763     android)
4764         disable symver
4765         enable section_data_rel_ro
4766         SLIB_INSTALL_NAME='$(SLIBNAME)'
4767         SLIB_INSTALL_LINKS=
4768         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4769         ;;
4770     haiku)
4771         prefix_default="/boot/common"
4772         network_extralibs="-lnetwork"
4773         host_libs=
4774         ;;
4775     sunos)
4776         SHFLAGS='-shared -Wl,-h,$$(@F)'
4777         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4778         network_extralibs="-lsocket -lnsl"
4779         add_cppflags -D__EXTENSIONS__
4780         # When using suncc to build, the Solaris linker will mark
4781         # an executable with each instruction set encountered by
4782         # the Solaris assembler.  As our libraries contain their own
4783         # guards for processor-specific code, instead suppress
4784         # generation of the HWCAPS ELF section on Solaris x86 only.
4785         enabled_all suncc x86 &&
4786             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4787             add_ldflags -Wl,-M,mapfile
4788         nm_default='nm -P -g'
4789         version_script='-M'
4790         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4791         ;;
4792     netbsd)
4793         disable symver
4794         oss_indev_extralibs="-lossaudio"
4795         oss_outdev_extralibs="-lossaudio"
4796         enabled gcc || check_ldflags -Wl,-zmuldefs
4797         ;;
4798     openbsd|bitrig)
4799         disable symver
4800         SHFLAGS='-shared'
4801         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4802         SLIB_INSTALL_LINKS=
4803         oss_indev_extralibs="-lossaudio"
4804         oss_outdev_extralibs="-lossaudio"
4805         ;;
4806     dragonfly)
4807         disable symver
4808         ;;
4809     freebsd)
4810         ;;
4811     bsd/os)
4812         add_extralibs -lpoll -lgnugetopt
4813         strip="strip -d"
4814         ;;
4815     darwin)
4816         enabled ppc && add_asflags -force_cpusubtype_ALL
4817         install_name_dir_default='$(SHLIBDIR)'
4818         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4819         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4820         strip="${strip} -x"
4821         add_ldflags -Wl,-dynamic,-search_paths_first
4822         SLIBSUF=".dylib"
4823         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4824         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4825         objformat="macho"
4826         enabled x86_64 && objformat="macho64"
4827         enabled_any pic shared x86_64 ||
4828             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4829         check_header dispatch/dispatch.h &&
4830             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4831         version_script='-exported_symbols_list'
4832         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4833         ;;
4834     msys*)
4835         die "Native MSYS builds are discouraged, please use the MINGW environment."
4836         ;;
4837     mingw32*|mingw64*)
4838         if test $target_os = "mingw32ce"; then
4839             disable network
4840         else
4841             target_os=mingw32
4842         fi
4843         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4844         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4845         LIBTARGET=i386
4846         if enabled x86_64; then
4847             LIBTARGET="i386:x86-64"
4848         elif enabled arm; then
4849             LIBTARGET=arm-wince
4850         fi
4851         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4852         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4853         shlibdir_default="$bindir_default"
4854         SLIBPREF=""
4855         SLIBSUF=".dll"
4856         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4857         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4858         dlltool="${cross_prefix}dlltool"
4859         if check_cmd lib.exe -list; then
4860             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(S