cde309661225f3e3256aa6e9f31465e98ae4ad42
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
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 Hardware accelerators:
153   --disable-d3d11va        disable D3D11VA code [autodetect]
154   --disable-dxva2          disable DXVA2 code [autodetect]
155   --disable-vaapi          disable VAAPI code [autodetect]
156   --disable-vda            disable VDA code [autodetect]
157   --disable-vdpau          disable VDPAU code [autodetect]
158
159 Individual component options:
160   --disable-everything     disable all components listed below
161   --disable-encoder=NAME   disable encoder NAME
162   --enable-encoder=NAME    enable encoder NAME
163   --disable-encoders       disable all encoders
164   --disable-decoder=NAME   disable decoder NAME
165   --enable-decoder=NAME    enable decoder NAME
166   --disable-decoders       disable all decoders
167   --disable-hwaccel=NAME   disable hwaccel NAME
168   --enable-hwaccel=NAME    enable hwaccel NAME
169   --disable-hwaccels       disable all hwaccels
170   --disable-muxer=NAME     disable muxer NAME
171   --enable-muxer=NAME      enable muxer NAME
172   --disable-muxers         disable all muxers
173   --disable-demuxer=NAME   disable demuxer NAME
174   --enable-demuxer=NAME    enable demuxer NAME
175   --disable-demuxers       disable all demuxers
176   --enable-parser=NAME     enable parser NAME
177   --disable-parser=NAME    disable parser NAME
178   --disable-parsers        disable all parsers
179   --enable-bsf=NAME        enable bitstream filter NAME
180   --disable-bsf=NAME       disable bitstream filter NAME
181   --disable-bsfs           disable all bitstream filters
182   --enable-protocol=NAME   enable protocol NAME
183   --disable-protocol=NAME  disable protocol NAME
184   --disable-protocols      disable all protocols
185   --enable-indev=NAME      enable input device NAME
186   --disable-indev=NAME     disable input device NAME
187   --disable-indevs         disable input devices
188   --enable-outdev=NAME     enable output device NAME
189   --disable-outdev=NAME    disable output device NAME
190   --disable-outdevs        disable output devices
191   --disable-devices        disable all devices
192   --enable-filter=NAME     enable filter NAME
193   --disable-filter=NAME    disable filter NAME
194   --disable-filters        disable all filters
195
196 External library support:
197   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]
198   --enable-avisynth        enable reading of AviSynth script files [no]
199   --disable-bzlib          disable bzlib [autodetect]
200   --enable-cuda            enable dynamically linked CUDA [no]
201   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
202   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
203   --enable-frei0r          enable frei0r video filtering [no]
204   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
205                            if openssl, librtmp or gmp is not used [no]
206   --enable-gmp             enable gmp, needed for rtmp(t)e support
207                            if openssl or librtmp is not used [no]
208   --enable-gnutls          enable gnutls, needed for https support
209                            if openssl is not used [no]
210   --disable-iconv          disable iconv [autodetect]
211   --enable-jni             enable JNI support [no]
212   --enable-ladspa          enable LADSPA audio filtering [no]
213   --enable-libass          enable libass subtitles rendering,
214                            needed for subtitles and ass filter [no]
215   --enable-libbluray       enable BluRay reading using libbluray [no]
216   --enable-libbs2b         enable bs2b DSP library [no]
217   --enable-libcaca         enable textual display using libcaca [no]
218   --enable-libcelt         enable CELT decoding via libcelt [no]
219   --enable-libcdio         enable audio CD grabbing with libcdio [no]
220   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
221                            and libraw1394 [no]
222   --enable-libdcadec       enable DCA decoding via libdcadec [no]
223   --enable-libfaac         enable AAC encoding via libfaac [no]
224   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
225   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
226   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
227   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
228   --enable-libgme          enable Game Music Emu via libgme [no]
229   --enable-libgsm          enable GSM de/encoding via libgsm [no]
230   --enable-libiec61883     enable iec61883 via libiec61883 [no]
231   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
232   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
233   --enable-libmfx          enable HW acceleration through libmfx
234   --enable-libmodplug      enable ModPlug via libmodplug [no]
235   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
236   --enable-libnut          enable NUT (de)muxing via libnut,
237                            native (de)muxer exists [no]
238   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
239   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
240   --enable-libopencv       enable video filtering via libopencv [no]
241   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
242   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
243   --enable-libopus         enable Opus de/encoding via libopus [no]
244   --enable-libpulse        enable Pulseaudio input via libpulse [no]
245   --enable-librubberband   enable rubberband needed for rubberband filter [no]
246   --enable-librtmp         enable RTMP[E] support via librtmp [no]
247   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
248   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
249   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
250   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
251   --enable-libsoxr         enable Include libsoxr resampling [no]
252   --enable-libspeex        enable Speex de/encoding via libspeex [no]
253   --enable-libssh          enable SFTP protocol via libssh [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
258   --enable-libv4l2         enable libv4l2/v4l-utils [no]
259   --enable-libvidstab      enable video stabilization using vid.stab [no]
260   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
261   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
262                            native implementation exists [no]
263   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
264   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
265   --enable-libwebp         enable WebP encoding via libwebp [no]
266   --enable-libx264         enable H.264 encoding via x264 [no]
267   --enable-libx265         enable HEVC encoding via x265 [no]
268   --enable-libxavs         enable AVS encoding via xavs [no]
269   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
270   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
271   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
272   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
273   --enable-libxvid         enable Xvid encoding via xvidcore,
274                            native MPEG-4/Xvid encoder exists [no]
275   --enable-libzimg         enable z.lib, needed for zscale filter [no]
276   --enable-libzmq          enable message passing via libzmq [no]
277   --enable-libzvbi         enable teletext support via libzvbi [no]
278   --disable-lzma           disable lzma [autodetect]
279   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
280   --enable-mediacodec      enable Android MediaCodec support [no]
281   --enable-mmal            enable decoding via MMAL [no]
282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
283   --enable-nvenc           enable NVIDIA NVENC support [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-sdl            disable sdl [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --disable-videotoolbox   disable VideoToolbox code [autodetect]
295   --enable-x11grab         enable X11 grabbing (legacy) [no]
296   --disable-xlib           disable xlib [autodetect]
297   --disable-zlib           disable zlib [autodetect]
298
299 Toolchain options:
300   --arch=ARCH              select architecture [$arch]
301   --cpu=CPU                select the minimum required CPU (affects
302                            instruction selection, may crash on older CPUs)
303   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
304   --progs-suffix=SUFFIX    program name suffix []
305   --enable-cross-compile   assume a cross-compiler is used
306   --sysroot=PATH           root of cross-build tree
307   --sysinclude=PATH        location of cross-build system headers
308   --target-os=OS           compiler targets OS [$target_os]
309   --target-exec=CMD        command to run executables on target
310   --target-path=DIR        path to view of build directory on target
311   --target-samples=DIR     path to samples directory on target
312   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
313   --toolchain=NAME         set tool defaults according to NAME
314   --nm=NM                  use nm tool NM [$nm_default]
315   --ar=AR                  use archive tool AR [$ar_default]
316   --as=AS                  use assembler AS [$as_default]
317   --strip=STRIP            use strip tool STRIP [$strip_default]
318   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
319   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
320   --cc=CC                  use C compiler CC [$cc_default]
321   --cxx=CXX                use C compiler CXX [$cxx_default]
322   --objcc=OCC              use ObjC compiler OCC [$cc_default]
323   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
324   --ld=LD                  use linker LD [$ld_default]
325   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
326   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
327   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
328   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
329   --host-cc=HOSTCC         use host C compiler HOSTCC
330   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
331   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
332   --host-ld=HOSTLD         use host linker HOSTLD
333   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
334   --host-libs=HLIBS        use libs HLIBS when linking for host
335   --host-os=OS             compiler host OS [$target_os]
336   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
337   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
338   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
339   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
340   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
341   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
342   --extra-libs=ELIBS       add ELIBS [$ELIBS]
343   --extra-version=STRING   version string suffix []
344   --optflags=OPTFLAGS      override optimization-related compiler flags
345   --build-suffix=SUFFIX    library name suffix []
346   --enable-pic             build position-independent code
347   --enable-thumb           compile for Thumb instruction set
348   --enable-lto             use link-time optimization
349   --env="ENV=override"     override the environment variables
350
351 Advanced options (experts only):
352   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
353   --custom-allocator=NAME  use a supported custom allocator
354   --disable-symver         disable symbol versioning
355   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
356   --disable-safe-bitstream-reader
357                            disable buffer boundary checking in bitreaders
358                            (faster, but may crash)
359   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
360   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
361
362 Optimization options (experts only):
363   --disable-asm            disable all assembly optimizations
364   --disable-altivec        disable AltiVec optimizations
365   --disable-vsx            disable VSX optimizations
366   --disable-power8         disable POWER8 optimizations
367   --disable-amd3dnow       disable 3DNow! optimizations
368   --disable-amd3dnowext    disable 3DNow! extended optimizations
369   --disable-mmx            disable MMX optimizations
370   --disable-mmxext         disable MMXEXT optimizations
371   --disable-sse            disable SSE optimizations
372   --disable-sse2           disable SSE2 optimizations
373   --disable-sse3           disable SSE3 optimizations
374   --disable-ssse3          disable SSSE3 optimizations
375   --disable-sse4           disable SSE4 optimizations
376   --disable-sse42          disable SSE4.2 optimizations
377   --disable-avx            disable AVX optimizations
378   --disable-xop            disable XOP optimizations
379   --disable-fma3           disable FMA3 optimizations
380   --disable-fma4           disable FMA4 optimizations
381   --disable-avx2           disable AVX2 optimizations
382   --disable-aesni          disable AESNI optimizations
383   --disable-armv5te        disable armv5te optimizations
384   --disable-armv6          disable armv6 optimizations
385   --disable-armv6t2        disable armv6t2 optimizations
386   --disable-vfp            disable VFP optimizations
387   --disable-neon           disable NEON optimizations
388   --disable-inline-asm     disable use of inline assembly
389   --disable-yasm           disable use of nasm/yasm assembly
390   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
391   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
392   --disable-msa            disable MSA optimizations
393   --disable-mipsfpu        disable floating point MIPS optimizations
394   --disable-mmi            disable Loongson SIMD optimizations
395   --disable-fast-unaligned consider unaligned accesses slow
396
397 Developer options (useful when working on FFmpeg itself):
398   --disable-debug          disable debugging symbols
399   --enable-debug=LEVEL     set the debug level [$debuglevel]
400   --disable-optimizations  disable compiler optimizations
401   --enable-extra-warnings  enable more compiler warnings
402   --disable-stripping      disable stripping of executables and shared libraries
403   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
404                            2 causes a slowdown at runtime.
405   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
406   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
407                            leaks and errors, using the specified valgrind binary.
408                            Cannot be combined with --target-exec
409   --enable-ftrapv          Trap arithmetic overflows
410   --samples=PATH           location of test samples for FATE, if not set use
411                            \$FATE_SAMPLES at make invocation time.
412   --enable-neon-clobber-test check NEON registers for clobbering (should be
413                            used only for debugging purposes)
414   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
415                            should be used only for debugging purposes)
416   --enable-random          randomly enable/disable components
417   --disable-random
418   --enable-random=LIST     randomly enable/disable specific components or
419   --disable-random=LIST    component groups. LIST is a comma-separated list
420                            of NAME[:PROB] entries where NAME is a component
421                            (group) and PROB the probability associated with
422                            NAME (default 0.5).
423   --random-seed=VALUE      seed value for --enable/disable-random
424   --disable-valgrind-backtrace do not print a backtrace under Valgrind
425                            (only applies to --disable-optimizations builds)
426
427 NOTE: Object files are built at the place where configure is launched.
428 EOF
429   exit 0
430 }
431
432 quotes='""'
433 if test -t 1 && which tput >/dev/null 2>&1; then
434     ncolors=$(tput colors)
435     if test -n "$ncolors" && test $ncolors -ge 8; then
436         bold_color=$(tput bold)
437         warn_color=$(tput setaf 3)
438         error_color=$(tput setaf 1)
439         reset_color=$(tput sgr0)
440     fi
441     # 72 used instead of 80 since that's the default of pr
442     ncols=$(tput cols)
443 fi
444 : ${ncols:=72}
445
446 log(){
447     echo "$@" >> $logfile
448 }
449
450 log_file(){
451     log BEGIN $1
452     pr -n -t $1 >> $logfile
453     log END $1
454 }
455
456 warn(){
457     log "WARNING: $*"
458     WARNINGS="${WARNINGS}WARNING: $*\n"
459 }
460
461 die(){
462     log "$@"
463     echo "$error_color$bold_color$@$reset_color"
464     cat <<EOF
465
466 If you think configure made a mistake, make sure you are using the latest
467 version from Git.  If the latest version fails, report the problem to the
468 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
469 EOF
470     if disabled logging; then
471         cat <<EOF
472 Rerun configure with logging enabled (do not use --disable-logging), and
473 include the log this produces with your report.
474 EOF
475     else
476         cat <<EOF
477 Include the log file "$logfile" produced by configure as this will help
478 solve the problem.
479 EOF
480     fi
481     exit 1
482 }
483
484 # Avoid locale weirdness, besides we really just want to translate ASCII.
485 toupper(){
486     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
487 }
488
489 tolower(){
490     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
491 }
492
493 c_escape(){
494     echo "$*" | sed 's/["\\]/\\\0/g'
495 }
496
497 sh_quote(){
498     v=$(echo "$1" | sed "s/'/'\\\\''/g")
499     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
500     echo "$v"
501 }
502
503 cleanws(){
504     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
505 }
506
507 filter(){
508     pat=$1
509     shift
510     for v; do
511         eval "case $v in $pat) echo $v ;; esac"
512     done
513 }
514
515 filter_out(){
516     pat=$1
517     shift
518     for v; do
519         eval "case $v in $pat) ;; *) echo $v ;; esac"
520     done
521 }
522
523 map(){
524     m=$1
525     shift
526     for v; do eval $m; done
527 }
528
529 add_suffix(){
530     suffix=$1
531     shift
532     for v; do echo ${v}${suffix}; done
533 }
534
535 set_all(){
536     value=$1
537     shift
538     for var in $*; do
539         eval $var=$value
540     done
541 }
542
543 set_weak(){
544     value=$1
545     shift
546     for var; do
547         eval : \${$var:=$value}
548     done
549 }
550
551 sanitize_var_name(){
552     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
553 }
554
555 set_safe(){
556     var=$1
557     shift
558     eval $(sanitize_var_name "$var")='$*'
559 }
560
561 get_safe(){
562     eval echo \$$(sanitize_var_name "$1")
563 }
564
565 pushvar(){
566     for pvar in $*; do
567         eval level=\${${pvar}_level:=0}
568         eval ${pvar}_${level}="\$$pvar"
569         eval ${pvar}_level=$(($level+1))
570     done
571 }
572
573 popvar(){
574     for pvar in $*; do
575         eval level=\${${pvar}_level:-0}
576         test $level = 0 && continue
577         eval level=$(($level-1))
578         eval $pvar="\${${pvar}_${level}}"
579         eval ${pvar}_level=$level
580         eval unset ${pvar}_${level}
581     done
582 }
583
584 enable(){
585     set_all yes $*
586 }
587
588 disable(){
589     set_all no $*
590 }
591
592 enable_weak(){
593     set_weak yes $*
594 }
595
596 disable_weak(){
597     set_weak no $*
598 }
599
600 enable_safe(){
601     for var; do
602         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
603     done
604 }
605
606 disable_safe(){
607     for var; do
608         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
609     done
610 }
611
612 do_enable_deep(){
613     for var; do
614         enabled $var && continue
615         eval sel="\$${var}_select"
616         eval sgs="\$${var}_suggest"
617         pushvar var sgs
618         enable_deep $sel
619         popvar sgs
620         enable_deep_weak $sgs
621         popvar var
622     done
623 }
624
625 enable_deep(){
626     do_enable_deep $*
627     enable $*
628 }
629
630 enable_deep_weak(){
631     for var; do
632         disabled $var && continue
633         pushvar var
634         do_enable_deep $var
635         popvar var
636         enable_weak $var
637     done
638 }
639
640 enabled(){
641     test "${1#!}" = "$1" && op='=' || op=!=
642     eval test "x\$${1#!}" $op "xyes"
643 }
644
645 disabled(){
646     test "${1#!}" = "$1" && op='=' || op=!=
647     eval test "x\$${1#!}" $op "xno"
648 }
649
650 enabled_all(){
651     for opt; do
652         enabled $opt || return 1
653     done
654 }
655
656 disabled_all(){
657     for opt; do
658         disabled $opt || return 1
659     done
660 }
661
662 enabled_any(){
663     for opt; do
664         enabled $opt && return 0
665     done
666 }
667
668 disabled_any(){
669     for opt; do
670         disabled $opt && return 0
671     done
672     return 1
673 }
674
675 set_default(){
676     for opt; do
677         eval : \${$opt:=\$${opt}_default}
678     done
679 }
680
681 is_in(){
682     value=$1
683     shift
684     for var in $*; do
685         [ $var = $value ] && return 0
686     done
687     return 1
688 }
689
690 do_check_deps(){
691     for cfg; do
692         cfg="${cfg#!}"
693         enabled ${cfg}_checking && die "Circular dependency for $cfg."
694         disabled ${cfg}_checking && continue
695         enable ${cfg}_checking
696         append allopts $cfg
697
698         eval dep_all="\$${cfg}_deps"
699         eval dep_any="\$${cfg}_deps_any"
700         eval dep_sel="\$${cfg}_select"
701         eval dep_sgs="\$${cfg}_suggest"
702         eval dep_ifa="\$${cfg}_if"
703         eval dep_ifn="\$${cfg}_if_any"
704
705         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
706         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
707         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
708
709         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
710         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
711         enabled_all  $dep_all || disable $cfg
712         enabled_any  $dep_any || disable $cfg
713         disabled_any $dep_sel && disable $cfg
714
715         if enabled $cfg; then
716             enable_deep $dep_sel
717             enable_deep_weak $dep_sgs
718         fi
719
720         disable ${cfg}_checking
721     done
722 }
723
724 check_deps(){
725     unset allopts
726
727     do_check_deps "$@"
728
729     for cfg in $allopts; do
730         enabled $cfg || continue
731         eval dep_extralibs="\$${cfg}_extralibs"
732         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
733     done
734 }
735
736 print_config(){
737     pfx=$1
738     files=$2
739     shift 2
740     map 'eval echo "$v \${$v:-no}"' "$@" |
741     awk "BEGIN { split(\"$files\", files) }
742         {
743             c = \"$pfx\" toupper(\$1);
744             v = \$2;
745             sub(/yes/, 1, v);
746             sub(/no/,  0, v);
747             for (f in files) {
748                 file = files[f];
749                 if (file ~ /\\.h\$/) {
750                     printf(\"#define %s %d\\n\", c, v) >>file;
751                 } else if (file ~ /\\.asm\$/) {
752                     printf(\"%%define %s %d\\n\", c, v) >>file;
753                 } else if (file ~ /\\.mak\$/) {
754                     n = -v ? \"\" : \"!\";
755                     printf(\"%s%s=yes\\n\", n, c) >>file;
756                 } else if (file ~ /\\.texi\$/) {
757                     pre = -v ? \"\" : \"@c \";
758                     yesno = \$2;
759                     c2 = tolower(c);
760                     gsub(/_/, \"-\", c2);
761                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
762                 }
763             }
764         }"
765 }
766
767 print_enabled(){
768     suf=$1
769     shift
770     for v; do
771         enabled $v && printf "%s\n" ${v%$suf};
772     done
773 }
774
775 append(){
776     var=$1
777     shift
778     eval "$var=\"\$$var $*\""
779 }
780
781 prepend(){
782     var=$1
783     shift
784     eval "$var=\"$* \$$var\""
785 }
786
787 unique(){
788     var=$1
789     uniq_list=""
790     for tok in $(eval echo \$$var); do
791         uniq_list="$(filter_out $tok $uniq_list) $tok"
792     done
793     eval "$var=\"${uniq_list}\""
794 }
795
796 add_cppflags(){
797     append CPPFLAGS "$@"
798 }
799
800 add_cflags(){
801     append CFLAGS $($cflags_filter "$@")
802 }
803
804 add_cxxflags(){
805     append CXXFLAGS $($cflags_filter "$@")
806 }
807
808 add_asflags(){
809     append ASFLAGS $($asflags_filter "$@")
810 }
811
812 add_objcflags(){
813     append OBJCFLAGS $($objcflags_filter "$@")
814 }
815
816 add_ldflags(){
817     append LDFLAGS $($ldflags_filter "$@")
818 }
819
820 add_ldexeflags(){
821     append LDEXEFLAGS $($ldflags_filter "$@")
822 }
823
824 add_ldlibflags(){
825     append LDLIBFLAGS $($ldflags_filter "$@")
826 }
827
828 add_stripflags(){
829     append ASMSTRIPFLAGS "$@"
830 }
831
832 add_extralibs(){
833     prepend extralibs $($ldflags_filter "$@")
834 }
835
836 add_host_cppflags(){
837     append host_cppflags "$@"
838 }
839
840 add_host_cflags(){
841     append host_cflags $($host_cflags_filter "$@")
842 }
843
844 add_host_ldflags(){
845     append host_ldflags $($host_ldflags_filter "$@")
846 }
847
848 add_compat(){
849     append compat_objs $1
850     shift
851     map 'add_cppflags -D$v' "$@"
852 }
853
854 check_cmd(){
855     log "$@"
856     "$@" >> $logfile 2>&1
857 }
858
859 check_stat(){
860     log check_stat "$@"
861     stat "$1" >> $logfile 2>&1
862 }
863
864 cc_o(){
865     eval printf '%s\\n' $CC_O
866 }
867
868 cc_e(){
869     eval printf '%s\\n' $CC_E
870 }
871
872 check_cc(){
873     log check_cc "$@"
874     cat > $TMPC
875     log_file $TMPC
876     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
877 }
878
879 check_cxx(){
880     log check_cxx "$@"
881     cat > $TMPCPP
882     log_file $TMPCPP
883     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
884 }
885
886 check_objcc(){
887     log check_objcc "$@"
888     cat > $TMPM
889     log_file $TMPM
890     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
891 }
892
893 check_cpp(){
894     log check_cpp "$@"
895     cat > $TMPC
896     log_file $TMPC
897     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
898 }
899
900 as_o(){
901     eval printf '%s\\n' $AS_O
902 }
903
904 check_as(){
905     log check_as "$@"
906     cat > $TMPS
907     log_file $TMPS
908     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
909 }
910
911 check_inline_asm(){
912     log check_inline_asm "$@"
913     name="$1"
914     code="$2"
915     shift 2
916     disable $name
917     check_cc "$@" <<EOF && enable $name
918 void foo(void){ __asm__ volatile($code); }
919 EOF
920 }
921
922 check_inline_asm_flags(){
923     log check_inline_asm_flags "$@"
924     name="$1"
925     code="$2"
926     flags=''
927     shift 2
928     while [ "$1" != "" ]; do
929       append flags $1
930       shift
931     done;
932     disable $name
933     cat > $TMPC <<EOF
934 void foo(void){ __asm__ volatile($code); }
935 EOF
936     log_file $TMPC
937     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
938     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
939 }
940
941 check_insn(){
942     log check_insn "$@"
943     check_inline_asm ${1}_inline "\"$2\""
944     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
945 }
946
947 check_yasm(){
948     log check_yasm "$@"
949     echo "$1" > $TMPS
950     log_file $TMPS
951     shift 1
952     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
953 }
954
955 ld_o(){
956     eval printf '%s\\n' $LD_O
957 }
958
959 check_ld(){
960     log check_ld "$@"
961     type=$1
962     shift 1
963     flags=$(filter_out '-l*|*.so' $@)
964     libs=$(filter '-l*|*.so' $@)
965     check_$type $($cflags_filter $flags) || return
966     flags=$($ldflags_filter $flags)
967     libs=$($ldflags_filter $libs)
968     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
969 }
970
971 print_include(){
972     hdr=$1
973     test "${hdr%.h}" = "${hdr}" &&
974         echo "#include $hdr"    ||
975         echo "#include <$hdr>"
976 }
977
978 check_code(){
979     log check_code "$@"
980     check=$1
981     headers=$2
982     code=$3
983     shift 3
984     {
985         for hdr in $headers; do
986             print_include $hdr
987         done
988         echo "int main(void) { $code; return 0; }"
989     } | check_$check "$@"
990 }
991
992 check_cppflags(){
993     log check_cppflags "$@"
994     check_cc "$@" <<EOF && append CPPFLAGS "$@"
995 int x;
996 EOF
997 }
998
999 test_cflags(){
1000     log test_cflags "$@"
1001     set -- $($cflags_filter "$@")
1002     check_cc "$@" <<EOF
1003 int x;
1004 EOF
1005 }
1006
1007 check_cflags(){
1008     log check_cflags "$@"
1009     test_cflags "$@" && add_cflags "$@"
1010 }
1011
1012 check_cxxflags(){
1013     log check_cxxflags "$@"
1014     set -- $($cflags_filter "$@")
1015     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1016 int x;
1017 EOF
1018 }
1019
1020 test_objcflags(){
1021     log test_cflags "$@"
1022     set -- $($cflags_filter "$@")
1023     check_objcc "$@" <<EOF
1024 int x;
1025 EOF
1026 }
1027
1028 check_objcflags(){
1029     log check_cflags "$@"
1030     test_objcflags "$@" && add_objcflags "$@"
1031 }
1032
1033 test_ldflags(){
1034     log test_ldflags "$@"
1035     check_ld "cc" "$@" <<EOF
1036 int main(void){ return 0; }
1037 EOF
1038 }
1039
1040 check_ldflags(){
1041     log check_ldflags "$@"
1042     test_ldflags "$@" && add_ldflags "$@"
1043 }
1044
1045 test_stripflags(){
1046     log test_stripflags "$@"
1047     # call check_cc to get a fresh TMPO
1048     check_cc <<EOF
1049 int main(void) { return 0; }
1050 EOF
1051     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1052 }
1053
1054 check_stripflags(){
1055     log check_stripflags "$@"
1056     test_stripflags "$@" && add_stripflags "$@"
1057 }
1058
1059 check_header(){
1060     log check_header "$@"
1061     header=$1
1062     shift
1063     disable_safe $header
1064     check_cpp "$@" <<EOF && enable_safe $header
1065 #include <$header>
1066 int x;
1067 EOF
1068 }
1069
1070 check_header_objcc(){
1071     log check_header_objcc "$@"
1072     rm -f -- "$TMPO"
1073     header=$1
1074     shift
1075     disable_safe $header
1076     {
1077        echo "#include <$header>"
1078        echo "int main(void) { return 0; }"
1079     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1080 }
1081
1082 check_func(){
1083     log check_func "$@"
1084     func=$1
1085     shift
1086     disable $func
1087     check_ld "cc" "$@" <<EOF && enable $func
1088 extern int $func();
1089 int main(void){ $func(); }
1090 EOF
1091 }
1092
1093 check_complexfunc(){
1094     log check_complexfunc "$@"
1095     func=$1
1096     narg=$2
1097     shift 2
1098     test $narg = 2 && args="f, g" || args="f * I"
1099     disable $func
1100     check_ld "cc" "$@" <<EOF && enable $func
1101 #include <complex.h>
1102 #include <math.h>
1103 float foo(complex float f, complex float g) { return $func($args); }
1104 int main(void){ return (int) foo; }
1105 EOF
1106 }
1107
1108 check_mathfunc(){
1109     log check_mathfunc "$@"
1110     func=$1
1111     narg=$2
1112     shift 2
1113     test $narg = 2 && args="f, g" || args="f"
1114     disable $func
1115     check_ld "cc" "$@" <<EOF && enable $func
1116 #include <math.h>
1117 float foo(float f, float g) { return $func($args); }
1118 int main(void){ return (int) foo; }
1119 EOF
1120 }
1121
1122 check_func_headers(){
1123     log check_func_headers "$@"
1124     headers=$1
1125     funcs=$2
1126     shift 2
1127     {
1128         for hdr in $headers; do
1129             print_include $hdr
1130         done
1131         for func in $funcs; do
1132             echo "long check_$func(void) { return (long) $func; }"
1133         done
1134         echo "int main(void) { return 0; }"
1135     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1136 }
1137
1138 check_class_headers_cpp(){
1139     log check_class_headers_cpp "$@"
1140     headers=$1
1141     classes=$2
1142     shift 2
1143     {
1144         for hdr in $headers; do
1145             echo "#include <$hdr>"
1146         done
1147         echo "int main(void) { "
1148         i=1
1149         for class in $classes; do
1150             echo "$class obj$i;"
1151             i=$(expr $i + 1)
1152         done
1153         echo "return 0; }"
1154     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1155 }
1156
1157 check_cpp_condition(){
1158     log check_cpp_condition "$@"
1159     header=$1
1160     condition=$2
1161     shift 2
1162     check_cpp "$@" <<EOF
1163 #include <$header>
1164 #if !($condition)
1165 #error "unsatisfied condition: $condition"
1166 #endif
1167 EOF
1168 }
1169
1170 check_lib(){
1171     log check_lib "$@"
1172     header="$1"
1173     func="$2"
1174     shift 2
1175     check_header $header && check_func $func "$@" && add_extralibs "$@"
1176 }
1177
1178 check_lib2(){
1179     log check_lib2 "$@"
1180     headers="$1"
1181     funcs="$2"
1182     shift 2
1183     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1184 }
1185
1186 check_lib_cpp(){
1187     log check_lib_cpp "$@"
1188     headers="$1"
1189     classes="$2"
1190     shift 2
1191     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1192 }
1193
1194 check_pkg_config(){
1195     log check_pkg_config "$@"
1196     pkgandversion="$1"
1197     pkg="${1%% *}"
1198     headers="$2"
1199     funcs="$3"
1200     shift 3
1201     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1202     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1203     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1204     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1205         set_safe "${pkg}_cflags" $pkg_cflags   &&
1206         set_safe "${pkg}_libs"   $pkg_libs
1207 }
1208
1209 check_exec(){
1210     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1211 }
1212
1213 check_exec_crash(){
1214     code=$(cat)
1215
1216     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1217     # are safe but may not be available everywhere.  Thus we use
1218     # raise(SIGTERM) instead.  The check is run in a subshell so we
1219     # can redirect the "Terminated" message from the shell.  SIGBUS
1220     # is not defined by standard C so it is used conditionally.
1221
1222     (check_exec "$@") >> $logfile 2>&1 <<EOF
1223 #include <signal.h>
1224 static void sighandler(int sig){
1225     raise(SIGTERM);
1226 }
1227 int foo(void){
1228     $code
1229 }
1230 int (*func_ptr)(void) = foo;
1231 int main(void){
1232     signal(SIGILL, sighandler);
1233     signal(SIGFPE, sighandler);
1234     signal(SIGSEGV, sighandler);
1235 #ifdef SIGBUS
1236     signal(SIGBUS, sighandler);
1237 #endif
1238     return func_ptr();
1239 }
1240 EOF
1241 }
1242
1243 check_type(){
1244     log check_type "$@"
1245     headers=$1
1246     type=$2
1247     shift 2
1248     disable_safe "$type"
1249     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1250 }
1251
1252 check_struct(){
1253     log check_struct "$@"
1254     headers=$1
1255     struct=$2
1256     member=$3
1257     shift 3
1258     disable_safe "${struct}_${member}"
1259     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1260         enable_safe "${struct}_${member}"
1261 }
1262
1263 check_builtin(){
1264     log check_builtin "$@"
1265     name=$1
1266     headers=$2
1267     builtin=$3
1268     shift 3
1269     disable "$name"
1270     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1271 }
1272
1273 check_compile_assert(){
1274     log check_compile_assert "$@"
1275     name=$1
1276     headers=$2
1277     condition=$3
1278     shift 3
1279     disable "$name"
1280     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1281 }
1282
1283 require(){
1284     name="$1"
1285     header="$2"
1286     func="$3"
1287     shift 3
1288     check_lib $header $func "$@" || die "ERROR: $name not found"
1289 }
1290
1291 require2(){
1292     name="$1"
1293     headers="$2"
1294     func="$3"
1295     shift 3
1296     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1297 }
1298
1299 require_cpp(){
1300     name="$1"
1301     headers="$2"
1302     classes="$3"
1303     shift 3
1304     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1305 }
1306
1307 use_pkg_config(){
1308     pkg="$1"
1309     check_pkg_config "$@" || return 1
1310     add_cflags    $(get_safe "${pkg}_cflags")
1311     add_extralibs $(get_safe "${pkg}_libs")
1312 }
1313
1314 require_pkg_config(){
1315     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1316 }
1317
1318 require_libfreetype(){
1319     log require_libfreetype "$@"
1320     pkg="freetype2"
1321     check_cmd $pkg_config --exists --print-errors $pkg \
1322       || die "ERROR: $pkg not found"
1323     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1324     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1325     {
1326         echo "#include <ft2build.h>"
1327         echo "#include FT_FREETYPE_H"
1328         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1329         echo "int main(void) { return 0; }"
1330     } | check_ld "cc" $pkg_cflags $pkg_libs \
1331       && set_safe "${pkg}_cflags" $pkg_cflags \
1332       && set_safe "${pkg}_libs"   $pkg_libs \
1333       || die "ERROR: $pkg not found"
1334     add_cflags    $(get_safe "${pkg}_cflags")
1335     add_extralibs $(get_safe "${pkg}_libs")
1336 }
1337
1338 hostcc_e(){
1339     eval printf '%s\\n' $HOSTCC_E
1340 }
1341
1342 hostcc_o(){
1343     eval printf '%s\\n' $HOSTCC_O
1344 }
1345
1346 check_host_cc(){
1347     log check_host_cc "$@"
1348     cat > $TMPC
1349     log_file $TMPC
1350     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1351 }
1352
1353 check_host_cpp(){
1354     log check_host_cpp "$@"
1355     cat > $TMPC
1356     log_file $TMPC
1357     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1358 }
1359
1360 check_host_cppflags(){
1361     log check_host_cppflags "$@"
1362     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1363 int x;
1364 EOF
1365 }
1366
1367 check_host_cflags(){
1368     log check_host_cflags "$@"
1369     set -- $($host_cflags_filter "$@")
1370     check_host_cc "$@" <<EOF && append host_cflags "$@"
1371 int x;
1372 EOF
1373 }
1374
1375 check_host_cpp_condition(){
1376     log check_host_cpp_condition "$@"
1377     header=$1
1378     condition=$2
1379     shift 2
1380     check_host_cpp "$@" <<EOF
1381 #include <$header>
1382 #if !($condition)
1383 #error "unsatisfied condition: $condition"
1384 #endif
1385 EOF
1386 }
1387
1388 cp_if_changed(){
1389     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1390     mkdir -p "$(dirname $2)"
1391     $cp_f "$1" "$2"
1392 }
1393
1394 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1395 # system-dependent things.
1396
1397 AVCODEC_COMPONENTS="
1398     bsfs
1399     decoders
1400     encoders
1401     hwaccels
1402     parsers
1403 "
1404
1405 AVDEVICE_COMPONENTS="
1406     indevs
1407     outdevs
1408 "
1409 AVFILTER_COMPONENTS="
1410     filters
1411 "
1412 AVFORMAT_COMPONENTS="
1413     demuxers
1414     muxers
1415     protocols
1416 "
1417
1418 AVRESAMPLE_COMPONENTS=""
1419 AVUTIL_COMPONENTS=""
1420
1421 COMPONENT_LIST="
1422     $AVCODEC_COMPONENTS
1423     $AVDEVICE_COMPONENTS
1424     $AVFILTER_COMPONENTS
1425     $AVFORMAT_COMPONENTS
1426     $AVRESAMPLE_COMPONENTS
1427     $AVUTIL_COMPONENTS
1428 "
1429
1430 EXAMPLE_LIST="
1431     avio_reading_example
1432     avio_dir_cmd_example
1433     decoding_encoding_example
1434     demuxing_decoding_example
1435     extract_mvs_example
1436     filter_audio_example
1437     filtering_audio_example
1438     filtering_video_example
1439     metadata_example
1440     muxing_example
1441     qsvdec_example
1442     remuxing_example
1443     resampling_audio_example
1444     scaling_video_example
1445     transcode_aac_example
1446     transcoding_example
1447 "
1448
1449 EXTERNAL_LIBRARY_LIST="
1450     audiotoolbox
1451     avisynth
1452     bzlib
1453     chromaprint
1454     crystalhd
1455     cuda
1456     decklink
1457     frei0r
1458     gcrypt
1459     gmp
1460     gnutls
1461     iconv
1462     jni
1463     ladspa
1464     libass
1465     libbluray
1466     libbs2b
1467     libcaca
1468     libcdio
1469     libcelt
1470     libdc1394
1471     libdcadec
1472     libfaac
1473     libfdk_aac
1474     libflite
1475     libfontconfig
1476     libfreetype
1477     libfribidi
1478     libgme
1479     libgsm
1480     libiec61883
1481     libilbc
1482     libkvazaar
1483     libmfx
1484     libmodplug
1485     libmp3lame
1486     libnut
1487     libopencore_amrnb
1488     libopencore_amrwb
1489     libopencv
1490     libopenh264
1491     libopenjpeg
1492     libopus
1493     libpulse
1494     librtmp
1495     librubberband
1496     libschroedinger
1497     libshine
1498     libsmbclient
1499     libsnappy
1500     libsoxr
1501     libspeex
1502     libssh
1503     libtesseract
1504     libtheora
1505     libtwolame
1506     libutvideo
1507     libv4l2
1508     libvidstab
1509     libvo_amrwbenc
1510     libvorbis
1511     libvpx
1512     libwavpack
1513     libwebp
1514     libx264
1515     libx265
1516     libxavs
1517     libxcb
1518     libxcb_shm
1519     libxcb_shape
1520     libxcb_xfixes
1521     libxvid
1522     libzimg
1523     libzmq
1524     libzvbi
1525     lzma
1526     mediacodec
1527     mmal
1528     netcdf
1529     nvenc
1530     openal
1531     opencl
1532     opengl
1533     openssl
1534     schannel
1535     sdl
1536     securetransport
1537     videotoolbox
1538     x11grab
1539     xlib
1540     zlib
1541 "
1542
1543 DOCUMENT_LIST="
1544     doc
1545     htmlpages
1546     manpages
1547     podpages
1548     txtpages
1549 "
1550
1551 FEATURE_LIST="
1552     ftrapv
1553     gray
1554     hardcoded_tables
1555     runtime_cpudetect
1556     safe_bitstream_reader
1557     shared
1558     small
1559     static
1560     swscale_alpha
1561 "
1562
1563 HWACCEL_LIST="
1564     d3d11va
1565     dxva2
1566     vaapi
1567     vda
1568     vdpau
1569     videotoolbox_hwaccel
1570     xvmc
1571 "
1572
1573 LIBRARY_LIST="
1574     avcodec
1575     avdevice
1576     avfilter
1577     avformat
1578     avresample
1579     avutil
1580     postproc
1581     swresample
1582     swscale
1583 "
1584
1585 LICENSE_LIST="
1586     gpl
1587     nonfree
1588     version3
1589 "
1590
1591 PROGRAM_LIST="
1592     ffplay
1593     ffprobe
1594     ffserver
1595     ffmpeg
1596 "
1597
1598 SUBSYSTEM_LIST="
1599     dct
1600     dwt
1601     error_resilience
1602     faan
1603     fast_unaligned
1604     fft
1605     lsp
1606     lzo
1607     mdct
1608     pixelutils
1609     network
1610     rdft
1611 "
1612
1613 CONFIG_LIST="
1614     $COMPONENT_LIST
1615     $DOCUMENT_LIST
1616     $EXAMPLE_LIST
1617     $EXTERNAL_LIBRARY_LIST
1618     $FEATURE_LIST
1619     $HWACCEL_LIST
1620     $LICENSE_LIST
1621     $LIBRARY_LIST
1622     $PROGRAM_LIST
1623     $SUBSYSTEM_LIST
1624     fontconfig
1625     incompatible_libav_abi
1626     memalign_hack
1627     memory_poisoning
1628     neon_clobber_test
1629     pic
1630     pod2man
1631     raise_major
1632     thumb
1633     valgrind_backtrace
1634     xmm_clobber_test
1635 "
1636
1637 THREADS_LIST="
1638     pthreads
1639     os2threads
1640     w32threads
1641 "
1642
1643 ATOMICS_LIST="
1644     atomics_gcc
1645     atomics_suncc
1646     atomics_win32
1647 "
1648
1649 ARCH_LIST="
1650     aarch64
1651     alpha
1652     arm
1653     avr32
1654     avr32_ap
1655     avr32_uc
1656     bfin
1657     ia64
1658     m68k
1659     mips
1660     mips64
1661     parisc
1662     ppc
1663     ppc64
1664     s390
1665     sh4
1666     sparc
1667     sparc64
1668     tilegx
1669     tilepro
1670     tomi
1671     x86
1672     x86_32
1673     x86_64
1674 "
1675
1676 ARCH_EXT_LIST_ARM="
1677     armv5te
1678     armv6
1679     armv6t2
1680     armv8
1681     neon
1682     vfp
1683     vfpv3
1684     setend
1685 "
1686
1687 ARCH_EXT_LIST_MIPS="
1688     mipsfpu
1689     mips32r2
1690     mips32r5
1691     mips64r2
1692     mips32r6
1693     mips64r6
1694     mipsdsp
1695     mipsdspr2
1696     msa
1697 "
1698
1699 ARCH_EXT_LIST_LOONGSON="
1700     loongson2
1701     loongson3
1702     mmi
1703 "
1704
1705 ARCH_EXT_LIST_X86_SIMD="
1706     aesni
1707     amd3dnow
1708     amd3dnowext
1709     avx
1710     avx2
1711     fma3
1712     fma4
1713     mmx
1714     mmxext
1715     sse
1716     sse2
1717     sse3
1718     sse4
1719     sse42
1720     ssse3
1721     xop
1722 "
1723
1724 ARCH_EXT_LIST_PPC="
1725     altivec
1726     dcbzl
1727     ldbrx
1728     power8
1729     ppc4xx
1730     vsx
1731 "
1732
1733 ARCH_EXT_LIST_X86="
1734     $ARCH_EXT_LIST_X86_SIMD
1735     cpunop
1736     i686
1737 "
1738
1739 ARCH_EXT_LIST="
1740     $ARCH_EXT_LIST_ARM
1741     $ARCH_EXT_LIST_PPC
1742     $ARCH_EXT_LIST_X86
1743     $ARCH_EXT_LIST_MIPS
1744     $ARCH_EXT_LIST_LOONGSON
1745 "
1746
1747 ARCH_FEATURES="
1748     aligned_stack
1749     fast_64bit
1750     fast_clz
1751     fast_cmov
1752     local_aligned_8
1753     local_aligned_16
1754     local_aligned_32
1755     simd_align_16
1756 "
1757
1758 BUILTIN_LIST="
1759     atomic_cas_ptr
1760     atomic_compare_exchange
1761     machine_rw_barrier
1762     MemoryBarrier
1763     mm_empty
1764     rdtsc
1765     sarestart
1766     sem_timedwait
1767     sync_val_compare_and_swap
1768 "
1769 HAVE_LIST_CMDLINE="
1770     inline_asm
1771     symver
1772     yasm
1773 "
1774
1775 HAVE_LIST_PUB="
1776     bigendian
1777     fast_unaligned
1778     incompatible_libav_abi
1779 "
1780
1781 HEADERS_LIST="
1782     alsa_asoundlib_h
1783     altivec_h
1784     arpa_inet_h
1785     asm_types_h
1786     cdio_paranoia_h
1787     cdio_paranoia_paranoia_h
1788     dispatch_dispatch_h
1789     dev_bktr_ioctl_bt848_h
1790     dev_bktr_ioctl_meteor_h
1791     dev_ic_bt8xx_h
1792     dev_video_bktr_ioctl_bt848_h
1793     dev_video_meteor_ioctl_meteor_h
1794     direct_h
1795     dirent_h
1796     dlfcn_h
1797     d3d11_h
1798     dxva_h
1799     ES2_gl_h
1800     gsm_h
1801     io_h
1802     mach_mach_time_h
1803     machine_ioctl_bt848_h
1804     machine_ioctl_meteor_h
1805     malloc_h
1806     opencv2_core_core_c_h
1807     openjpeg_2_1_openjpeg_h
1808     openjpeg_2_0_openjpeg_h
1809     openjpeg_1_5_openjpeg_h
1810     OpenGL_gl3_h
1811     poll_h
1812     sndio_h
1813     soundcard_h
1814     sys_mman_h
1815     sys_param_h
1816     sys_resource_h
1817     sys_select_h
1818     sys_soundcard_h
1819     sys_time_h
1820     sys_un_h
1821     sys_videoio_h
1822     termios_h
1823     udplite_h
1824     unistd_h
1825     valgrind_valgrind_h
1826     windows_h
1827     winsock2_h
1828 "
1829
1830 INTRINSICS_LIST="
1831     intrinsics_neon
1832 "
1833
1834 COMPLEX_FUNCS="
1835     cabs
1836     cexp
1837 "
1838
1839 MATH_FUNCS="
1840     atanf
1841     atan2f
1842     cbrt
1843     cbrtf
1844     copysign
1845     cosf
1846     erf
1847     exp2
1848     exp2f
1849     expf
1850     hypot
1851     isfinite
1852     isinf
1853     isnan
1854     ldexpf
1855     llrint
1856     llrintf
1857     log2
1858     log2f
1859     log10f
1860     lrint
1861     lrintf
1862     powf
1863     rint
1864     round
1865     roundf
1866     sinf
1867     trunc
1868     truncf
1869 "
1870
1871 SYSTEM_FUNCS="
1872     access
1873     aligned_malloc
1874     arc4random
1875     clock_gettime
1876     closesocket
1877     CommandLineToArgvW
1878     CoTaskMemFree
1879     CryptGenRandom
1880     dlopen
1881     fcntl
1882     flt_lim
1883     fork
1884     getaddrinfo
1885     gethrtime
1886     getopt
1887     GetProcessAffinityMask
1888     GetProcessMemoryInfo
1889     GetProcessTimes
1890     getrusage
1891     GetSystemTimeAsFileTime
1892     gettimeofday
1893     glob
1894     glXGetProcAddress
1895     gmtime_r
1896     inet_aton
1897     isatty
1898     jack_port_get_latency_range
1899     kbhit
1900     localtime_r
1901     lstat
1902     lzo1x_999_compress
1903     mach_absolute_time
1904     MapViewOfFile
1905     memalign
1906     mkstemp
1907     mmap
1908     mprotect
1909     nanosleep
1910     PeekNamedPipe
1911     posix_memalign
1912     pthread_cancel
1913     sched_getaffinity
1914     SetConsoleTextAttribute
1915     SetConsoleCtrlHandler
1916     setmode
1917     setrlimit
1918     Sleep
1919     strerror_r
1920     sysconf
1921     sysctl
1922     usleep
1923     UTGetOSTypeFromString
1924     VirtualAlloc
1925     wglGetProcAddress
1926 "
1927
1928 TOOLCHAIN_FEATURES="
1929     as_dn_directive
1930     as_func
1931     as_object_arch
1932     asm_mod_q
1933     attribute_may_alias
1934     attribute_packed
1935     ebp_available
1936     ebx_available
1937     gnu_as
1938     gnu_windres
1939     ibm_asm
1940     inline_asm_direct_symbol_refs
1941     inline_asm_labels
1942     inline_asm_nonlocal_labels
1943     pragma_deprecated
1944     rsync_contimeout
1945     symver_asm_label
1946     symver_gnu_asm
1947     vfp_args
1948     xform_asm
1949     xmm_clobbers
1950 "
1951
1952 TYPES_LIST="
1953     CONDITION_VARIABLE_Ptr
1954     socklen_t
1955     struct_addrinfo
1956     struct_group_source_req
1957     struct_ip_mreq_source
1958     struct_ipv6_mreq
1959     struct_msghdr_msg_flags
1960     struct_pollfd
1961     struct_rusage_ru_maxrss
1962     struct_sctp_event_subscribe
1963     struct_sockaddr_in6
1964     struct_sockaddr_sa_len
1965     struct_sockaddr_storage
1966     struct_stat_st_mtim_tv_nsec
1967     struct_v4l2_frmivalenum_discrete
1968 "
1969
1970 HAVE_LIST="
1971     $ARCH_EXT_LIST
1972     $(add_suffix _external $ARCH_EXT_LIST)
1973     $(add_suffix _inline   $ARCH_EXT_LIST)
1974     $ARCH_FEATURES
1975     $ATOMICS_LIST
1976     $BUILTIN_LIST
1977     $COMPLEX_FUNCS
1978     $HAVE_LIST_CMDLINE
1979     $HAVE_LIST_PUB
1980     $HEADERS_LIST
1981     $INTRINSICS_LIST
1982     $MATH_FUNCS
1983     $SYSTEM_FUNCS
1984     $THREADS_LIST
1985     $TOOLCHAIN_FEATURES
1986     $TYPES_LIST
1987     atomics_native
1988     dos_paths
1989     dxva2_lib
1990     dxva2api_cobj
1991     libc_msvcrt
1992     libdc1394_1
1993     libdc1394_2
1994     makeinfo
1995     makeinfo_html
1996     perl
1997     pod2man
1998     sdl
1999     section_data_rel_ro
2000     texi2html
2001     threads
2002     vaapi_x11
2003     vdpau_x11
2004     winrt
2005     xlib
2006 "
2007
2008 # options emitted with CONFIG_ prefix but not available on the command line
2009 CONFIG_EXTRA="
2010     aandcttables
2011     ac3dsp
2012     audio_frame_queue
2013     audiodsp
2014     blockdsp
2015     bswapdsp
2016     cabac
2017     dirac_parse
2018     dvprofile
2019     exif
2020     faandct
2021     faanidct
2022     fdctdsp
2023     flacdsp
2024     fmtconvert
2025     frame_thread_encoder
2026     g722dsp
2027     golomb
2028     gplv3
2029     h263dsp
2030     h264chroma
2031     h264dsp
2032     h264pred
2033     h264qpel
2034     hpeldsp
2035     huffman
2036     huffyuvdsp
2037     huffyuvencdsp
2038     idctdsp
2039     iirfilter
2040     imdct15
2041     intrax8
2042     iso_media
2043     ividsp
2044     jpegtables
2045     lgplv3
2046     libx262
2047     llauddsp
2048     llviddsp
2049     lpc
2050     lzf
2051     me_cmp
2052     mpeg_er
2053     mpegaudio
2054     mpegaudiodsp
2055     mpegvideo
2056     mpegvideoenc
2057     mss34dsp
2058     pixblockdsp
2059     qpeldsp
2060     qsv
2061     qsvdec
2062     qsvenc
2063     rangecoder
2064     riffdec
2065     riffenc
2066     rtpdec
2067     rtpenc_chain
2068     rv34dsp
2069     sinewin
2070     snappy
2071     startcode
2072     texturedsp
2073     texturedspenc
2074     tpeldsp
2075     vc1dsp
2076     videodsp
2077     vp3dsp
2078     vp56dsp
2079     vp8dsp
2080     wma_freqs
2081     wmv2dsp
2082 "
2083
2084 CMDLINE_SELECT="
2085     $ARCH_EXT_LIST
2086     $CONFIG_LIST
2087     $HAVE_LIST_CMDLINE
2088     $THREADS_LIST
2089     asm
2090     cross_compile
2091     debug
2092     extra_warnings
2093     logging
2094     lto
2095     optimizations
2096     rpath
2097     stripping
2098 "
2099
2100 PATHS_LIST="
2101     bindir
2102     datadir
2103     docdir
2104     incdir
2105     libdir
2106     mandir
2107     pkgconfigdir
2108     prefix
2109     shlibdir
2110     install_name_dir
2111 "
2112
2113 CMDLINE_SET="
2114     $PATHS_LIST
2115     ar
2116     arch
2117     as
2118     assert_level
2119     build_suffix
2120     cc
2121     objcc
2122     cpu
2123     cross_prefix
2124     custom_allocator
2125     cxx
2126     dep_cc
2127     doxygen
2128     env
2129     extra_version
2130     gas
2131     host_cc
2132     host_cflags
2133     host_ld
2134     host_ldflags
2135     host_libs
2136     host_os
2137     install
2138     ld
2139     logfile
2140     malloc_prefix
2141     nm
2142     optflags
2143     pkg_config
2144     pkg_config_flags
2145     progs_suffix
2146     random_seed
2147     ranlib
2148     samples
2149     strip
2150     sws_max_filter_size
2151     sysinclude
2152     sysroot
2153     target_exec
2154     target_os
2155     target_path
2156     target_samples
2157     tempprefix
2158     toolchain
2159     valgrind
2160     yasmexe
2161 "
2162
2163 CMDLINE_APPEND="
2164     extra_cflags
2165     extra_cxxflags
2166     extra_objcflags
2167     host_cppflags
2168 "
2169
2170 # code dependency declarations
2171
2172 # architecture extensions
2173
2174 armv5te_deps="arm"
2175 armv6_deps="arm"
2176 armv6t2_deps="arm"
2177 armv8_deps="aarch64"
2178 neon_deps_any="aarch64 arm"
2179 intrinsics_neon_deps="neon"
2180 vfp_deps_any="aarch64 arm"
2181 vfpv3_deps="vfp"
2182 setend_deps="arm"
2183
2184 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2185
2186 mipsfpu_deps="mips"
2187 mipsdsp_deps="mips"
2188 mipsdspr2_deps="mips"
2189 mips32r2_deps="mips"
2190 mips32r5_deps="mips"
2191 mips32r6_deps="mips"
2192 mips64r2_deps="mips"
2193 mips64r6_deps="mips"
2194 msa_deps="mipsfpu"
2195 mmi_deps="mips"
2196
2197 altivec_deps="ppc"
2198 dcbzl_deps="ppc"
2199 ldbrx_deps="ppc"
2200 ppc4xx_deps="ppc"
2201 vsx_deps="altivec"
2202 power8_deps="vsx"
2203
2204 cpunop_deps="i686"
2205 x86_64_select="i686"
2206 x86_64_suggest="fast_cmov"
2207
2208 amd3dnow_deps="mmx"
2209 amd3dnowext_deps="amd3dnow"
2210 i686_deps="x86"
2211 mmx_deps="x86"
2212 mmxext_deps="mmx"
2213 sse_deps="mmxext"
2214 sse2_deps="sse"
2215 sse3_deps="sse2"
2216 ssse3_deps="sse3"
2217 sse4_deps="ssse3"
2218 sse42_deps="sse4"
2219 aesni_deps="sse42"
2220 avx_deps="sse42"
2221 xop_deps="avx"
2222 fma3_deps="avx"
2223 fma4_deps="avx"
2224 avx2_deps="avx"
2225
2226 mmx_external_deps="yasm"
2227 mmx_inline_deps="inline_asm"
2228 mmx_suggest="mmx_external mmx_inline"
2229
2230 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2231     eval dep=\$${ext}_deps
2232     eval ${ext}_external_deps='"${dep}_external"'
2233     eval ${ext}_inline_deps='"${dep}_inline"'
2234     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2235 done
2236
2237 aligned_stack_if_any="aarch64 ppc x86"
2238 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2239 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2240 fast_unaligned_if_any="aarch64 ppc x86"
2241 simd_align_16_if_any="altivec neon sse"
2242
2243 # system capabilities
2244 symver_if_any="symver_asm_label symver_gnu_asm"
2245 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2246
2247 # threading support
2248 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2249 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2250 atomics_win32_if="MemoryBarrier"
2251 atomics_native_if_any="$ATOMICS_LIST"
2252 w32threads_deps="atomics_native"
2253 threads_if_any="$THREADS_LIST"
2254
2255 # subsystems
2256 dct_select="rdft"
2257 dirac_parse_select="golomb"
2258 error_resilience_select="me_cmp"
2259 faandct_deps="faan fdctdsp"
2260 faanidct_deps="faan idctdsp"
2261 h264dsp_select="startcode"
2262 frame_thread_encoder_deps="encoders threads"
2263 intrax8_select="error_resilience"
2264 mdct_select="fft"
2265 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2266 mpeg_er_select="error_resilience"
2267 mpegaudio_select="mpegaudiodsp"
2268 mpegaudiodsp_select="dct"
2269 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2270 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2271 qsvdec_select="qsv"
2272 qsvenc_select="qsv"
2273 vc1dsp_select="h264chroma qpeldsp startcode"
2274 rdft_select="fft"
2275
2276 # decoders / encoders
2277 aac_decoder_select="imdct15 mdct sinewin"
2278 aac_fixed_decoder_select="mdct sinewin"
2279 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2280 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2281 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2282 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2283 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2284 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2285 adpcm_g722_decoder_select="g722dsp"
2286 adpcm_g722_encoder_select="g722dsp"
2287 aic_decoder_select="golomb idctdsp"
2288 alac_encoder_select="lpc"
2289 als_decoder_select="bswapdsp"
2290 amrnb_decoder_select="lsp"
2291 amrwb_decoder_select="lsp"
2292 amv_decoder_select="sp5x_decoder exif"
2293 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2294 ape_decoder_select="bswapdsp llauddsp"
2295 apng_decoder_select="zlib"
2296 apng_encoder_select="huffyuvencdsp zlib"
2297 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2298 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2299 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2300 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2301 atrac1_decoder_select="mdct sinewin"
2302 atrac3_decoder_select="mdct"
2303 atrac3p_decoder_select="mdct sinewin"
2304 avrn_decoder_select="exif jpegtables"
2305 bink_decoder_select="blockdsp hpeldsp"
2306 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2307 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2308 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2309 cllc_decoder_select="bswapdsp"
2310 comfortnoise_encoder_select="lpc"
2311 cook_decoder_select="audiodsp mdct sinewin"
2312 cscd_decoder_select="lzo"
2313 cscd_decoder_suggest="zlib"
2314 dca_decoder_select="mdct"
2315 dds_decoder_select="texturedsp"
2316 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2317 dnxhd_decoder_select="blockdsp idctdsp"
2318 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2319 dvvideo_decoder_select="dvprofile idctdsp"
2320 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2321 dxa_decoder_select="zlib"
2322 dxv_decoder_select="lzf texturedsp"
2323 eac3_decoder_select="ac3_decoder"
2324 eac3_encoder_select="ac3_encoder"
2325 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2326 eatgq_decoder_select="aandcttables"
2327 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2328 exr_decoder_select="zlib"
2329 ffv1_decoder_select="golomb rangecoder"
2330 ffv1_encoder_select="rangecoder"
2331 ffvhuff_decoder_select="huffyuv_decoder"
2332 ffvhuff_encoder_select="huffyuv_encoder"
2333 fic_decoder_select="golomb"
2334 flac_decoder_select="flacdsp golomb"
2335 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2336 flashsv2_decoder_select="zlib"
2337 flashsv2_encoder_select="zlib"
2338 flashsv_decoder_select="zlib"
2339 flashsv_encoder_select="zlib"
2340 flv_decoder_select="h263_decoder"
2341 flv_encoder_select="h263_encoder"
2342 fourxm_decoder_select="blockdsp bswapdsp"
2343 fraps_decoder_select="bswapdsp huffman"
2344 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2345 g729_decoder_select="audiodsp"
2346 h261_decoder_select="mpegvideo"
2347 h261_encoder_select="aandcttables mpegvideoenc"
2348 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2349 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2350 h263i_decoder_select="h263_decoder"
2351 h263p_decoder_select="h263_decoder"
2352 h263p_encoder_select="h263_encoder"
2353 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2354 h264_decoder_suggest="error_resilience"
2355 h264_qsv_decoder_deps="libmfx"
2356 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2357 h264_qsv_encoder_deps="libmfx"
2358 h264_qsv_encoder_select="qsvenc"
2359 hap_decoder_select="snappy texturedsp"
2360 hap_encoder_deps="libsnappy"
2361 hap_encoder_select="texturedspenc"
2362 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2363 hevc_qsv_decoder_deps="libmfx"
2364 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2365 hevc_qsv_encoder_deps="libmfx"
2366 hevc_qsv_encoder_select="qsvenc"
2367 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2368 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2369 iac_decoder_select="imc_decoder"
2370 imc_decoder_select="bswapdsp fft mdct sinewin"
2371 indeo3_decoder_select="hpeldsp"
2372 indeo4_decoder_select="ividsp"
2373 indeo5_decoder_select="ividsp"
2374 interplay_video_decoder_select="hpeldsp"
2375 jpegls_decoder_select="golomb mjpeg_decoder"
2376 jpegls_encoder_select="golomb"
2377 jv_decoder_select="blockdsp"
2378 lagarith_decoder_select="huffyuvdsp"
2379 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2380 loco_decoder_select="golomb"
2381 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2382 metasound_decoder_select="lsp mdct sinewin"
2383 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2384 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2385 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2386 mjpegb_decoder_select="mjpeg_decoder"
2387 mlp_decoder_select="mlp_parser"
2388 motionpixels_decoder_select="bswapdsp"
2389 mp1_decoder_select="mpegaudio"
2390 mp1float_decoder_select="mpegaudio"
2391 mp2_decoder_select="mpegaudio"
2392 mp2float_decoder_select="mpegaudio"
2393 mp3_decoder_select="mpegaudio"
2394 mp3adu_decoder_select="mpegaudio"
2395 mp3adufloat_decoder_select="mpegaudio"
2396 mp3float_decoder_select="mpegaudio"
2397 mp3on4_decoder_select="mpegaudio"
2398 mp3on4float_decoder_select="mpegaudio"
2399 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2400 mpc8_decoder_select="mpegaudiodsp"
2401 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2402 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2403 mpegvideo_decoder_select="mpegvideo"
2404 mpeg1video_decoder_select="mpegvideo"
2405 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2406 mpeg2video_decoder_select="mpegvideo"
2407 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2408 mpeg2_qsv_decoder_deps="libmfx"
2409 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2410 mpeg2_qsv_encoder_deps="libmfx"
2411 mpeg2_qsv_encoder_select="qsvenc"
2412 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2413 mpeg4_encoder_select="h263_encoder"
2414 msa1_decoder_select="mss34dsp"
2415 msmpeg4v1_decoder_select="h263_decoder"
2416 msmpeg4v2_decoder_select="h263_decoder"
2417 msmpeg4v2_encoder_select="h263_encoder"
2418 msmpeg4v3_decoder_select="h263_decoder"
2419 msmpeg4v3_encoder_select="h263_encoder"
2420 mss2_decoder_select="vc1_decoder mpegvideo"
2421 mts2_decoder_select="mss34dsp"
2422 mxpeg_decoder_select="mjpeg_decoder"
2423 nellymoser_decoder_select="mdct sinewin"
2424 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2425 nuv_decoder_select="idctdsp lzo"
2426 on2avc_decoder_select="mdct"
2427 opus_decoder_deps="swresample"
2428 opus_decoder_select="imdct15"
2429 png_decoder_select="zlib"
2430 png_encoder_select="huffyuvencdsp zlib"
2431 prores_decoder_select="blockdsp idctdsp"
2432 prores_encoder_select="fdctdsp"
2433 qcelp_decoder_select="lsp"
2434 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2435 ra_144_decoder_select="audiodsp"
2436 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2437 ralf_decoder_select="golomb"
2438 rawvideo_decoder_select="bswapdsp"
2439 rscc_decoder_select="zlib"
2440 rtjpeg_decoder_select="me_cmp"
2441 rv10_decoder_select="h263_decoder"
2442 rv10_encoder_select="h263_encoder"
2443 rv20_decoder_select="h263_decoder"
2444 rv20_encoder_select="h263_encoder"
2445 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2446 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2447 screenpresso_decoder_select="zlib"
2448 shorten_decoder_select="golomb"
2449 sipr_decoder_select="lsp"
2450 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2451 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2452 sonic_decoder_select="golomb rangecoder"
2453 sonic_encoder_select="golomb rangecoder"
2454 sonic_ls_encoder_select="golomb rangecoder"
2455 sp5x_decoder_select="mjpeg_decoder"
2456 svq1_decoder_select="hpeldsp"
2457 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2458 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2459 svq3_decoder_suggest="zlib"
2460 tak_decoder_select="audiodsp"
2461 tdsc_decoder_select="zlib mjpeg_decoder"
2462 theora_decoder_select="vp3_decoder"
2463 thp_decoder_select="mjpeg_decoder"
2464 tiff_decoder_suggest="zlib lzma"
2465 tiff_encoder_suggest="zlib"
2466 truehd_decoder_select="mlp_parser"
2467 truemotion2_decoder_select="bswapdsp"
2468 truespeech_decoder_select="bswapdsp"
2469 tscc_decoder_select="zlib"
2470 twinvq_decoder_select="mdct lsp sinewin"
2471 txd_decoder_select="texturedsp"
2472 utvideo_decoder_select="bswapdsp"
2473 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2474 vble_decoder_select="huffyuvdsp"
2475 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2476 vc1_qsv_decoder_deps="libmfx"
2477 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2478 vc1image_decoder_select="vc1_decoder"
2479 vorbis_decoder_select="mdct"
2480 vorbis_encoder_select="mdct"
2481 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2482 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2483 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2484 vp6a_decoder_select="vp6_decoder"
2485 vp6f_decoder_select="vp6_decoder"
2486 vp7_decoder_select="h264pred videodsp vp8dsp"
2487 vp8_decoder_select="h264pred videodsp vp8dsp"
2488 vp9_decoder_select="videodsp vp9_parser"
2489 webp_decoder_select="vp8_decoder exif"
2490 wmalossless_decoder_select="llauddsp"
2491 wmapro_decoder_select="mdct sinewin wma_freqs"
2492 wmav1_decoder_select="mdct sinewin wma_freqs"
2493 wmav1_encoder_select="mdct sinewin wma_freqs"
2494 wmav2_decoder_select="mdct sinewin wma_freqs"
2495 wmav2_encoder_select="mdct sinewin wma_freqs"
2496 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2497 wmv1_decoder_select="h263_decoder"
2498 wmv1_encoder_select="h263_encoder"
2499 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2500 wmv2_encoder_select="h263_encoder wmv2dsp"
2501 wmv3_decoder_select="vc1_decoder"
2502 wmv3image_decoder_select="wmv3_decoder"
2503 xma1_decoder_select="wmapro_decoder"
2504 xma2_decoder_select="wmapro_decoder"
2505 zerocodec_decoder_select="zlib"
2506 zlib_decoder_select="zlib"
2507 zlib_encoder_select="zlib"
2508 zmbv_decoder_select="zlib"
2509 zmbv_encoder_select="zlib"
2510
2511 # platform codecs
2512 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2513 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2514
2515 # hardware accelerators
2516 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2517 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2518 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2519 vaapi_deps="va_va_h"
2520 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2521 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2522 vda_deps="vda_framework pthreads"
2523 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2524 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2525 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2526 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2527 xvmc_deps="X11_extensions_XvMClib_h"
2528
2529 h263_vaapi_hwaccel_deps="vaapi"
2530 h263_vaapi_hwaccel_select="h263_decoder"
2531 h263_videotoolbox_hwaccel_deps="videotoolbox"
2532 h263_videotoolbox_hwaccel_select="h263_decoder"
2533 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2534 h264_d3d11va_hwaccel_deps="d3d11va"
2535 h264_d3d11va_hwaccel_select="h264_decoder"
2536 h264_dxva2_hwaccel_deps="dxva2"
2537 h264_dxva2_hwaccel_select="h264_decoder"
2538 h264_mediacodec_decoder_deps="mediacodec"
2539 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2540 h264_mmal_decoder_deps="mmal"
2541 h264_mmal_decoder_select="mmal"
2542 h264_mmal_hwaccel_deps="mmal"
2543 h264_qsv_hwaccel_deps="libmfx"
2544 h264_vaapi_hwaccel_deps="vaapi"
2545 h264_vaapi_hwaccel_select="h264_decoder"
2546 h264_vda_decoder_deps="vda"
2547 h264_vda_decoder_select="h264_decoder"
2548 h264_vda_hwaccel_deps="vda"
2549 h264_vda_hwaccel_select="h264_decoder"
2550 h264_vda_old_hwaccel_deps="vda"
2551 h264_vda_old_hwaccel_select="h264_decoder"
2552 h264_vdpau_decoder_deps="vdpau"
2553 h264_vdpau_decoder_select="h264_decoder"
2554 h264_vdpau_hwaccel_deps="vdpau"
2555 h264_vdpau_hwaccel_select="h264_decoder"
2556 h264_videotoolbox_hwaccel_deps="videotoolbox"
2557 h264_videotoolbox_hwaccel_select="h264_decoder"
2558 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2559 hevc_d3d11va_hwaccel_select="hevc_decoder"
2560 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2561 hevc_dxva2_hwaccel_select="hevc_decoder"
2562 hevc_qsv_hwaccel_deps="libmfx"
2563 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2564 hevc_vaapi_hwaccel_select="hevc_decoder"
2565 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2566 hevc_vdpau_hwaccel_select="hevc_decoder"
2567 mpeg_vdpau_decoder_deps="vdpau"
2568 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2569 mpeg_xvmc_hwaccel_deps="xvmc"
2570 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2571 mpeg1_vdpau_decoder_deps="vdpau"
2572 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2573 mpeg1_vdpau_hwaccel_deps="vdpau"
2574 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2575 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2576 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2577 mpeg1_xvmc_hwaccel_deps="xvmc"
2578 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2579 mpeg2_crystalhd_decoder_select="crystalhd"
2580 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2581 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2582 mpeg2_dxva2_hwaccel_deps="dxva2"
2583 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2584 mpeg2_mmal_decoder_deps="mmal"
2585 mpeg2_mmal_decoder_select="mmal"
2586 mpeg2_mmal_hwaccel_deps="mmal"
2587 mpeg2_qsv_hwaccel_deps="libmfx"
2588 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2589 mpeg2_vaapi_hwaccel_deps="vaapi"
2590 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2591 mpeg2_vdpau_hwaccel_deps="vdpau"
2592 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2593 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2594 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2595 mpeg2_xvmc_hwaccel_deps="xvmc"
2596 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2597 mpeg4_crystalhd_decoder_select="crystalhd"
2598 mpeg4_mmal_decoder_deps="mmal"
2599 mpeg4_mmal_decoder_select="mmal"
2600 mpeg4_mmal_hwaccel_deps="mmal"
2601 mpeg4_vaapi_hwaccel_deps="vaapi"
2602 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2603 mpeg4_vdpau_decoder_deps="vdpau"
2604 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2605 mpeg4_vdpau_hwaccel_deps="vdpau"
2606 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2607 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2608 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2609 msmpeg4_crystalhd_decoder_select="crystalhd"
2610 vc1_crystalhd_decoder_select="crystalhd"
2611 vc1_d3d11va_hwaccel_deps="d3d11va"
2612 vc1_d3d11va_hwaccel_select="vc1_decoder"
2613 vc1_dxva2_hwaccel_deps="dxva2"
2614 vc1_dxva2_hwaccel_select="vc1_decoder"
2615 vc1_mmal_decoder_deps="mmal"
2616 vc1_mmal_decoder_select="mmal"
2617 vc1_mmal_hwaccel_deps="mmal"
2618 vc1_qsv_hwaccel_deps="libmfx"
2619 vc1_qsv_hwaccel_select="qsvdec_vc1"
2620 vc1_vaapi_hwaccel_deps="vaapi"
2621 vc1_vaapi_hwaccel_select="vc1_decoder"
2622 vc1_vdpau_decoder_deps="vdpau"
2623 vc1_vdpau_decoder_select="vc1_decoder"
2624 vc1_vdpau_hwaccel_deps="vdpau"
2625 vc1_vdpau_hwaccel_select="vc1_decoder"
2626 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2627 vp9_d3d11va_hwaccel_select="vp9_decoder"
2628 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2629 vp9_dxva2_hwaccel_select="vp9_decoder"
2630 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2631 vp9_vaapi_hwaccel_select="vp9_decoder"
2632 wmv3_crystalhd_decoder_select="crystalhd"
2633 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2634 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2635 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2636 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2637 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2638
2639 # parsers
2640 h264_parser_select="h264_decoder"
2641 hevc_parser_select="golomb"
2642 mpegvideo_parser_select="mpegvideo"
2643 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2644 vc1_parser_select="vc1dsp"
2645
2646 # bitstream_filters
2647 mjpeg2jpeg_bsf_select="jpegtables"
2648
2649 # external libraries
2650 aac_at_decoder_deps="audiotoolbox"
2651 ac3_at_decoder_deps="audiotoolbox"
2652 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2653 alac_at_decoder_deps="audiotoolbox"
2654 amr_nb_at_decoder_deps="audiotoolbox"
2655 gsm_ms_at_decoder_deps="audiotoolbox"
2656 ilbc_at_decoder_deps="audiotoolbox"
2657 mp1_at_decoder_deps="audiotoolbox"
2658 mp2_at_decoder_deps="audiotoolbox"
2659 mp3_at_decoder_deps="audiotoolbox"
2660 pcm_alaw_at_decoder_deps="audiotoolbox"
2661 pcm_mulaw_at_decoder_deps="audiotoolbox"
2662 qdmc_at_decoder_deps="audiotoolbox"
2663 qdm2_at_decoder_deps="audiotoolbox"
2664 chromaprint_muxer_deps="chromaprint"
2665 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2666 libcelt_decoder_deps="libcelt"
2667 libdcadec_decoder_deps="libdcadec"
2668 libfaac_encoder_deps="libfaac"
2669 libfaac_encoder_select="audio_frame_queue"
2670 libfdk_aac_decoder_deps="libfdk_aac"
2671 libfdk_aac_encoder_deps="libfdk_aac"
2672 libfdk_aac_encoder_select="audio_frame_queue"
2673 libgme_demuxer_deps="libgme"
2674 libgsm_decoder_deps="libgsm"
2675 libgsm_encoder_deps="libgsm"
2676 libgsm_ms_decoder_deps="libgsm"
2677 libgsm_ms_encoder_deps="libgsm"
2678 libilbc_decoder_deps="libilbc"
2679 libilbc_encoder_deps="libilbc"
2680 libkvazaar_encoder_deps="libkvazaar"
2681 libmodplug_demuxer_deps="libmodplug"
2682 libmp3lame_encoder_deps="libmp3lame"
2683 libmp3lame_encoder_select="audio_frame_queue"
2684 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2685 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2686 libopencore_amrnb_encoder_select="audio_frame_queue"
2687 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2688 libopenh264_encoder_deps="libopenh264"
2689 libopenjpeg_decoder_deps="libopenjpeg"
2690 libopenjpeg_encoder_deps="libopenjpeg"
2691 libopus_decoder_deps="libopus"
2692 libopus_encoder_deps="libopus"
2693 libopus_encoder_select="audio_frame_queue"
2694 libschroedinger_decoder_deps="libschroedinger"
2695 libschroedinger_encoder_deps="libschroedinger"
2696 libshine_encoder_deps="libshine"
2697 libshine_encoder_select="audio_frame_queue"
2698 libspeex_decoder_deps="libspeex"
2699 libspeex_encoder_deps="libspeex"
2700 libspeex_encoder_select="audio_frame_queue"
2701 libtheora_encoder_deps="libtheora"
2702 libtwolame_encoder_deps="libtwolame"
2703 libutvideo_decoder_deps="libutvideo"
2704 libutvideo_encoder_deps="libutvideo"
2705 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2706 libvorbis_decoder_deps="libvorbis"
2707 libvorbis_encoder_deps="libvorbis"
2708 libvorbis_encoder_select="audio_frame_queue"
2709 libvpx_vp8_decoder_deps="libvpx"
2710 libvpx_vp8_encoder_deps="libvpx"
2711 libvpx_vp9_decoder_deps="libvpx"
2712 libvpx_vp9_encoder_deps="libvpx"
2713 libwavpack_encoder_deps="libwavpack"
2714 libwebp_encoder_deps="libwebp"
2715 libwebp_anim_encoder_deps="libwebp"
2716 libx262_encoder_deps="libx262"
2717 libx264_encoder_deps="libx264"
2718 libx264rgb_encoder_deps="libx264"
2719 libx264rgb_encoder_select="libx264_encoder"
2720 libx265_encoder_deps="libx265"
2721 libxavs_encoder_deps="libxavs"
2722 libxvid_encoder_deps="libxvid"
2723 libzvbi_teletext_decoder_deps="libzvbi"
2724 nvenc_encoder_deps="nvenc"
2725 nvenc_h264_encoder_deps="nvenc"
2726 nvenc_hevc_encoder_deps="nvenc"
2727 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2728 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2729 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2730 videotoolbox_encoder_suggest="vda_framework"
2731
2732 # demuxers / muxers
2733 ac3_demuxer_select="ac3_parser"
2734 asf_demuxer_select="riffdec"
2735 asf_o_demuxer_select="riffdec"
2736 asf_muxer_select="riffenc"
2737 asf_stream_muxer_select="asf_muxer"
2738 avi_demuxer_select="iso_media riffdec exif"
2739 avi_muxer_select="riffenc"
2740 avisynth_demuxer_deps="avisynth"
2741 avisynth_demuxer_select="riffdec"
2742 caf_demuxer_select="iso_media riffdec"
2743 dash_muxer_select="mp4_muxer"
2744 dirac_demuxer_select="dirac_parser"
2745 dts_demuxer_select="dca_parser"
2746 dtshd_demuxer_select="dca_parser"
2747 dv_demuxer_select="dvprofile"
2748 dv_muxer_select="dvprofile"
2749 dxa_demuxer_select="riffdec"
2750 eac3_demuxer_select="ac3_parser"
2751 f4v_muxer_select="mov_muxer"
2752 flac_demuxer_select="flac_parser"
2753 hds_muxer_select="flv_muxer"
2754 hls_muxer_select="mpegts_muxer"
2755 image2_alias_pix_demuxer_select="image2_demuxer"
2756 image2_brender_pix_demuxer_select="image2_demuxer"
2757 ipod_muxer_select="mov_muxer"
2758 ismv_muxer_select="mov_muxer"
2759 libnut_demuxer_deps="libnut"
2760 libnut_muxer_deps="libnut"
2761 matroska_audio_muxer_select="matroska_muxer"
2762 matroska_demuxer_select="iso_media riffdec"
2763 matroska_demuxer_suggest="bzlib lzo zlib"
2764 matroska_muxer_select="iso_media riffenc"
2765 mmf_muxer_select="riffenc"
2766 mov_demuxer_select="iso_media riffdec"
2767 mov_demuxer_suggest="zlib"
2768 mov_muxer_select="iso_media riffenc rtpenc_chain"
2769 mp3_demuxer_select="mpegaudio_parser"
2770 mp4_muxer_select="mov_muxer"
2771 mpegts_demuxer_select="iso_media"
2772 mpegts_muxer_select="adts_muxer latm_muxer"
2773 mpegtsraw_demuxer_select="mpegts_demuxer"
2774 mxf_d10_muxer_select="mxf_muxer"
2775 mxf_opatom_muxer_select="mxf_muxer"
2776 nut_muxer_select="riffenc"
2777 nuv_demuxer_select="riffdec"
2778 oga_muxer_select="ogg_muxer"
2779 ogg_demuxer_select="dirac_parse"
2780 opus_muxer_select="ogg_muxer"
2781 psp_muxer_select="mov_muxer"
2782 rtp_demuxer_select="sdp_demuxer"
2783 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2784 rtsp_demuxer_select="http_protocol rtpdec"
2785 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2786 sap_demuxer_select="sdp_demuxer"
2787 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2788 sdp_demuxer_select="rtpdec"
2789 smoothstreaming_muxer_select="ismv_muxer"
2790 spdif_muxer_select="aac_parser"
2791 spx_muxer_select="ogg_muxer"
2792 swf_demuxer_suggest="zlib"
2793 tak_demuxer_select="tak_parser"
2794 tg2_muxer_select="mov_muxer"
2795 tgp_muxer_select="mov_muxer"
2796 vobsub_demuxer_select="mpegps_demuxer"
2797 w64_demuxer_select="wav_demuxer"
2798 w64_muxer_select="wav_muxer"
2799 wav_demuxer_select="riffdec"
2800 wav_muxer_select="riffenc"
2801 webm_muxer_select="iso_media riffenc"
2802 webm_dash_manifest_demuxer_select="matroska_demuxer"
2803 wtv_demuxer_select="mpegts_demuxer riffdec"
2804 wtv_muxer_select="mpegts_muxer riffenc"
2805 xmv_demuxer_select="riffdec"
2806 xwma_demuxer_select="riffdec"
2807
2808 # indevs / outdevs
2809 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2810 alsa_outdev_deps="alsa_asoundlib_h"
2811 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2812 avfoundation_indev_select="avfoundation"
2813 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2814 caca_outdev_deps="libcaca"
2815 decklink_indev_deps="decklink pthreads"
2816 decklink_indev_extralibs="-lstdc++"
2817 decklink_outdev_deps="decklink pthreads"
2818 decklink_outdev_extralibs="-lstdc++"
2819 dshow_indev_deps="IBaseFilter"
2820 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2821 dv1394_indev_deps="dv1394"
2822 dv1394_indev_select="dv_demuxer"
2823 fbdev_indev_deps="linux_fb_h"
2824 fbdev_outdev_deps="linux_fb_h"
2825 gdigrab_indev_deps="CreateDIBSection"
2826 gdigrab_indev_extralibs="-lgdi32"
2827 gdigrab_indev_select="bmp_decoder"
2828 iec61883_indev_deps="libiec61883"
2829 jack_indev_deps="jack_jack_h"
2830 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2831 lavfi_indev_deps="avfilter"
2832 libcdio_indev_deps="libcdio"
2833 libdc1394_indev_deps="libdc1394"
2834 libv4l2_indev_deps="libv4l2"
2835 openal_indev_deps="openal"
2836 opengl_outdev_deps="opengl"
2837 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2838 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2839 pulse_indev_deps="libpulse"
2840 pulse_outdev_deps="libpulse"
2841 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2842 qtkit_indev_select="qtkit"
2843 sdl_outdev_deps="sdl"
2844 sndio_indev_deps="sndio_h"
2845 sndio_outdev_deps="sndio_h"
2846 v4l_indev_deps="linux_videodev_h"
2847 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2848 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2849 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2850 vfwcap_indev_extralibs="-lavicap32"
2851 x11grab_indev_deps="x11grab"
2852 x11grab_xcb_indev_deps="libxcb"
2853 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2854 xv_outdev_extralibs="-lXv -lX11 -lXext"
2855
2856 # protocols
2857 async_protocol_deps="threads"
2858 bluray_protocol_deps="libbluray"
2859 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2860 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2861 ffrtmpcrypt_protocol_select="tcp_protocol"
2862 ffrtmphttp_protocol_deps="!librtmp_protocol"
2863 ffrtmphttp_protocol_select="http_protocol"
2864 ftp_protocol_select="tcp_protocol"
2865 gopher_protocol_select="network"
2866 http_protocol_select="tcp_protocol"
2867 httpproxy_protocol_select="tcp_protocol"
2868 https_protocol_select="tls_protocol"
2869 icecast_protocol_select="http_protocol"
2870 librtmp_protocol_deps="librtmp"
2871 librtmpe_protocol_deps="librtmp"
2872 librtmps_protocol_deps="librtmp"
2873 librtmpt_protocol_deps="librtmp"
2874 librtmpte_protocol_deps="librtmp"
2875 libsmbclient_protocol_deps="libsmbclient gplv3"
2876 libssh_protocol_deps="libssh"
2877 mmsh_protocol_select="http_protocol"
2878 mmst_protocol_select="network"
2879 rtmp_protocol_deps="!librtmp_protocol"
2880 rtmp_protocol_select="tcp_protocol"
2881 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2882 rtmps_protocol_deps="!librtmp_protocol"
2883 rtmps_protocol_select="tls_protocol"
2884 rtmpt_protocol_select="ffrtmphttp_protocol"
2885 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2886 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2887 rtp_protocol_select="udp_protocol"
2888 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2889 sctp_protocol_select="network"
2890 srtp_protocol_select="rtp_protocol"
2891 tcp_protocol_select="network"
2892 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2893 tls_gnutls_protocol_select="tcp_protocol"
2894 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2895 tls_openssl_protocol_select="tcp_protocol"
2896 tls_schannel_protocol_deps="schannel"
2897 tls_schannel_protocol_select="tcp_protocol"
2898 tls_securetransport_protocol_deps="securetransport"
2899 tls_securetransport_protocol_select="tcp_protocol"
2900 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2901 udp_protocol_select="network"
2902 udplite_protocol_select="network"
2903 unix_protocol_deps="sys_un_h"
2904 unix_protocol_select="network"
2905
2906 # filters
2907 afftfilt_filter_deps="avcodec"
2908 afftfilt_filter_select="fft"
2909 amovie_filter_deps="avcodec avformat"
2910 aresample_filter_deps="swresample"
2911 ass_filter_deps="libass"
2912 asyncts_filter_deps="avresample"
2913 atempo_filter_deps="avcodec"
2914 atempo_filter_select="rdft"
2915 azmq_filter_deps="libzmq"
2916 blackframe_filter_deps="gpl"
2917 boxblur_filter_deps="gpl"
2918 bs2b_filter_deps="libbs2b"
2919 colormatrix_filter_deps="gpl"
2920 cover_rect_filter_deps="avcodec avformat gpl"
2921 cropdetect_filter_deps="gpl"
2922 delogo_filter_deps="gpl"
2923 deshake_filter_select="pixelutils"
2924 drawtext_filter_deps="libfreetype"
2925 ebur128_filter_deps="gpl"
2926 eq_filter_deps="gpl"
2927 fftfilt_filter_deps="avcodec"
2928 fftfilt_filter_select="rdft"
2929 find_rect_filter_deps="avcodec avformat gpl"
2930 firequalizer_filter_deps="avcodec"
2931 firequalizer_filter_select="rdft"
2932 flite_filter_deps="libflite"
2933 frei0r_filter_deps="frei0r dlopen"
2934 frei0r_src_filter_deps="frei0r dlopen"
2935 fspp_filter_deps="gpl"
2936 geq_filter_deps="gpl"
2937 histeq_filter_deps="gpl"
2938 hqdn3d_filter_deps="gpl"
2939 hwupload_cuda_filter_deps="cuda"
2940 interlace_filter_deps="gpl"
2941 kerndeint_filter_deps="gpl"
2942 ladspa_filter_deps="ladspa dlopen"
2943 mcdeint_filter_deps="avcodec gpl"
2944 movie_filter_deps="avcodec avformat"
2945 mpdecimate_filter_deps="gpl"
2946 mpdecimate_filter_select="pixelutils"
2947 mptestsrc_filter_deps="gpl"
2948 negate_filter_deps="lut_filter"
2949 nnedi_filter_deps="gpl"
2950 ocr_filter_deps="libtesseract"
2951 ocv_filter_deps="libopencv"
2952 owdenoise_filter_deps="gpl"
2953 pan_filter_deps="swresample"
2954 perspective_filter_deps="gpl"
2955 phase_filter_deps="gpl"
2956 pp7_filter_deps="gpl"
2957 pp_filter_deps="gpl postproc"
2958 pullup_filter_deps="gpl"
2959 removelogo_filter_deps="avcodec avformat swscale"
2960 repeatfields_filter_deps="gpl"
2961 resample_filter_deps="avresample"
2962 rubberband_filter_deps="librubberband"
2963 sab_filter_deps="gpl swscale"
2964 scale2ref_filter_deps="swscale"
2965 scale_filter_deps="swscale"
2966 select_filter_select="pixelutils"
2967 showcqt_filter_deps="avcodec avformat swscale"
2968 showcqt_filter_select="fft"
2969 showfreqs_filter_deps="avcodec"
2970 showfreqs_filter_select="fft"
2971 showspectrum_filter_deps="avcodec"
2972 showspectrum_filter_select="fft"
2973 showspectrumpic_filter_deps="avcodec"
2974 showspectrumpic_filter_select="fft"
2975 smartblur_filter_deps="gpl swscale"
2976 sofalizer_filter_deps="netcdf avcodec"
2977 sofalizer_filter_select="fft"
2978 spectrumsynth_filter_deps="avcodec"
2979 spectrumsynth_filter_select="fft"
2980 spp_filter_deps="gpl avcodec"
2981 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2982 stereo3d_filter_deps="gpl"
2983 subtitles_filter_deps="avformat avcodec libass"
2984 super2xsai_filter_deps="gpl"
2985 pixfmts_super2xsai_test_deps="super2xsai_filter"
2986 tinterlace_filter_deps="gpl"
2987 tinterlace_merge_test_deps="tinterlace_filter"
2988 tinterlace_pad_test_deps="tinterlace_filter"
2989 uspp_filter_deps="gpl avcodec"
2990 vidstabdetect_filter_deps="libvidstab"
2991 vidstabtransform_filter_deps="libvidstab"
2992 zmq_filter_deps="libzmq"
2993 zoompan_filter_deps="swscale"
2994 zscale_filter_deps="libzimg"
2995
2996 # examples
2997 avcodec_example_deps="avcodec avutil"
2998 avio_dir_cmd="avformat avutil"
2999 avio_reading="avformat avcodec avutil"
3000 decoding_encoding_example_deps="avcodec avformat avutil"
3001 demuxing_decoding_example_deps="avcodec avformat avutil"
3002 extract_mvs_example_deps="avcodec avformat avutil"
3003 filter_audio_example_deps="avfilter avutil"
3004 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3005 filtering_video_example_deps="avfilter avcodec avformat avutil"
3006 metadata_example_deps="avformat avutil"
3007 muxing_example_deps="avcodec avformat avutil swscale"
3008 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3009 remuxing_example_deps="avcodec avformat avutil"
3010 resampling_audio_example_deps="avutil swresample"
3011 scaling_video_example_deps="avutil swscale"
3012 transcode_aac_example_deps="avcodec avformat swresample"
3013 transcoding_example_deps="avfilter avcodec avformat avutil"
3014
3015 # libraries, in linking order
3016 avcodec_deps="avutil"
3017 avdevice_deps="avformat avcodec avutil"
3018 avfilter_deps="avutil"
3019 avformat_deps="avcodec avutil"
3020 avresample_deps="avutil"
3021 postproc_deps="avutil gpl"
3022 swresample_deps="avutil"
3023 swscale_deps="avutil"
3024
3025 # programs
3026 ffmpeg_deps="avcodec avfilter avformat swresample"
3027 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3028                null_filter
3029                setpts_filter trim_filter"
3030 ffplay_deps="avcodec avformat swscale swresample sdl"
3031 ffplay_libs='$sdl_libs'
3032 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3033 ffprobe_deps="avcodec avformat"
3034 ffserver_deps="avformat fork sarestart"
3035 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3036
3037 # documentation
3038 podpages_deps="perl"
3039 manpages_deps="perl pod2man"
3040 htmlpages_deps="perl"
3041 htmlpages_deps_any="makeinfo_html texi2html"
3042 txtpages_deps="perl makeinfo"
3043 doc_deps_any="manpages htmlpages podpages txtpages"
3044
3045 # default parameters
3046
3047 logfile="config.log"
3048
3049 # installation paths
3050 prefix_default="/usr/local"
3051 bindir_default='${prefix}/bin'
3052 datadir_default='${prefix}/share/ffmpeg'
3053 docdir_default='${prefix}/share/doc/ffmpeg'
3054 incdir_default='${prefix}/include'
3055 libdir_default='${prefix}/lib'
3056 mandir_default='${prefix}/share/man'
3057
3058 # toolchain
3059 ar_default="ar"
3060 cc_default="gcc"
3061 cxx_default="g++"
3062 host_cc_default="gcc"
3063 cp_f="cp -f"
3064 doxygen_default="doxygen"
3065 install="install"
3066 ln_s="ln -s -f"
3067 nm_default="nm -g"
3068 objformat="elf"
3069 pkg_config_default=pkg-config
3070 ranlib_default="ranlib"
3071 strip_default="strip"
3072 yasmexe_default="yasm"
3073 windres_default="windres"
3074
3075 # OS
3076 target_os_default=$(tolower $(uname -s))
3077 host_os=$target_os_default
3078
3079 # machine
3080 if test "$target_os_default" = aix; then
3081     arch_default=$(uname -p)
3082     strip_default="strip -X32_64"
3083 else
3084     arch_default=$(uname -m)
3085 fi
3086 cpu="generic"
3087 intrinsics="none"
3088
3089 # configurable options
3090 enable $PROGRAM_LIST
3091 enable $DOCUMENT_LIST
3092 enable $EXAMPLE_LIST
3093 enable $(filter_out avresample $LIBRARY_LIST)
3094 enable stripping
3095
3096 enable asm
3097 enable debug
3098 enable doc
3099 enable faan faandct faanidct
3100 enable optimizations
3101 enable runtime_cpudetect
3102 enable safe_bitstream_reader
3103 enable static
3104 enable swscale_alpha
3105 enable valgrind_backtrace
3106
3107 sws_max_filter_size_default=256
3108 set_default sws_max_filter_size
3109
3110 # Enable platform codecs by default.
3111 enable audiotoolbox
3112
3113 # Enable hwaccels by default.
3114 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3115 enable xlib
3116
3117 enable vda_framework videotoolbox videotoolbox_encoder
3118
3119 # build settings
3120 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3121 LIBPREF="lib"
3122 LIBSUF=".a"
3123 FULLNAME='$(NAME)$(BUILDSUF)'
3124 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3125 SLIBPREF="lib"
3126 SLIBSUF=".so"
3127 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3128 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3129 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3130 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3131 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3132 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3133
3134 asflags_filter=echo
3135 cflags_filter=echo
3136 ldflags_filter=echo
3137
3138 AS_C='-c'
3139 AS_O='-o $@'
3140 CC_C='-c'
3141 CC_E='-E -o $@'
3142 CC_O='-o $@'
3143 CXX_C='-c'
3144 CXX_O='-o $@'
3145 OBJCC_C='-c'
3146 OBJCC_E='-E -o $@'
3147 OBJCC_O='-o $@'
3148 LD_O='-o $@'
3149 LD_LIB='-l%'
3150 LD_PATH='-L'
3151 HOSTCC_C='-c'
3152 HOSTCC_E='-E -o $@'
3153 HOSTCC_O='-o $@'
3154 HOSTLD_O='-o $@'
3155
3156 host_libs='-lm'
3157 host_cflags_filter=echo
3158 host_ldflags_filter=echo
3159
3160 target_path='$(CURDIR)'
3161
3162 # since the object filename is not given with the -MM flag, the compiler
3163 # is only able to print the basename, and we must add the path ourselves
3164 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3165 DEPFLAGS='-MM'
3166
3167 # find source path
3168 if test -f configure; then
3169     source_path=.
3170 else
3171     source_path=$(cd $(dirname "$0"); pwd)
3172     case "$source_path" in
3173         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3174     esac
3175     test -e "$source_path/config.h" &&
3176         die "Out of tree builds are impossible with config.h in source dir."
3177 fi
3178
3179 for v in "$@"; do
3180     r=${v#*=}
3181     l=${v%"$r"}
3182     r=$(sh_quote "$r")
3183     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3184 done
3185
3186 find_things(){
3187     thing=$1
3188     pattern=$2
3189     file=$source_path/$3
3190     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3191 }
3192
3193 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3194 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3195 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3196 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3197 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3198 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3199 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3200 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3201 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3202 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3203
3204 find_things_extern(){
3205     thing=$1
3206     pattern=$2
3207     file=$source_path/$3
3208     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3209 }
3210
3211 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3212
3213 ALL_COMPONENTS="
3214     $BSF_LIST
3215     $DECODER_LIST
3216     $DEMUXER_LIST
3217     $ENCODER_LIST
3218     $FILTER_LIST
3219     $HWACCEL_LIST
3220     $INDEV_LIST
3221     $MUXER_LIST
3222     $OUTDEV_LIST
3223     $PARSER_LIST
3224     $PROTOCOL_LIST
3225 "
3226
3227 for n in $COMPONENT_LIST; do
3228     v=$(toupper ${n%s})_LIST
3229     eval enable \$$v
3230     eval ${n}_if_any="\$$v"
3231 done
3232
3233 enable $ARCH_EXT_LIST
3234
3235 die_unknown(){
3236     echo "Unknown option \"$1\"."
3237     echo "See $0 --help for available options."
3238     exit 1
3239 }
3240
3241 print_in_columns() {
3242     cols=$(expr $ncols / 24)
3243     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3244 }
3245
3246 show_list() {
3247     suffix=_$1
3248     shift
3249     echo $* | sed s/$suffix//g | print_in_columns
3250     exit 0
3251 }
3252
3253 rand_list(){
3254     IFS=', '
3255     set -- $*
3256     unset IFS
3257     for thing; do
3258         comp=${thing%:*}
3259         prob=${thing#$comp}
3260         prob=${prob#:}
3261         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3262         echo "prob ${prob:-0.5}"
3263         printf '%s\n' $comp
3264     done
3265 }
3266
3267 do_random(){
3268     action=$1
3269     shift
3270     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3271     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3272 }
3273
3274 for opt do
3275     optval="${opt#*=}"
3276     case "$opt" in
3277         --extra-ldflags=*)
3278             add_ldflags $optval
3279         ;;
3280         --extra-ldexeflags=*)
3281             add_ldexeflags $optval
3282         ;;
3283         --extra-ldlibflags=*)
3284             add_ldlibflags $optval
3285         ;;
3286         --extra-libs=*)
3287             add_extralibs $optval
3288         ;;
3289         --disable-devices)
3290             disable $INDEV_LIST $OUTDEV_LIST
3291         ;;
3292         --enable-debug=*)
3293             debuglevel="$optval"
3294         ;;
3295         --disable-programs)
3296             disable $PROGRAM_LIST
3297         ;;
3298         --disable-everything)
3299             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3300         ;;
3301         --disable-all)
3302             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3303             disable $LIBRARY_LIST $PROGRAM_LIST doc
3304             enable avutil
3305         ;;
3306         --enable-random|--disable-random)
3307             action=${opt%%-random}
3308             do_random ${action#--} $COMPONENT_LIST
3309         ;;
3310         --enable-random=*|--disable-random=*)
3311             action=${opt%%-random=*}
3312             do_random ${action#--} $optval
3313         ;;
3314         --enable-*=*|--disable-*=*)
3315             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3316             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3317             eval list=\$$(toupper $thing)_LIST
3318             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3319             list=$(filter "$name" $list)
3320             [ "$list" = "" ] && warn "Option $opt did not match anything"
3321             $action $list
3322         ;;
3323         --enable-?*|--disable-?*)
3324             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3325             if is_in $option $COMPONENT_LIST; then
3326                 test $action = disable && action=unset
3327                 eval $action \$$(toupper ${option%s})_LIST
3328             elif is_in $option $CMDLINE_SELECT; then
3329                 $action $option
3330             else
3331                 die_unknown $opt
3332             fi
3333         ;;
3334         --list-*)
3335             NAME="${opt#--list-}"
3336             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3337             NAME=${NAME%s}
3338             eval show_list $NAME \$$(toupper $NAME)_LIST
3339         ;;
3340         --help|-h) show_help
3341         ;;
3342         --fatal-warnings) enable fatal_warnings
3343         ;;
3344         *)
3345             optname="${opt%%=*}"
3346             optname="${optname#--}"
3347             optname=$(echo "$optname" | sed 's/-/_/g')
3348             if is_in $optname $CMDLINE_SET; then
3349                 eval $optname='$optval'
3350             elif is_in $optname $CMDLINE_APPEND; then
3351                 append $optname "$optval"
3352             else
3353                 die_unknown $opt
3354             fi
3355         ;;
3356     esac
3357 done
3358
3359 for e in $env; do
3360     eval "export $e"
3361 done
3362
3363 disabled logging && logfile=/dev/null
3364
3365 # Disable all the library-specific components if the library itself
3366 # is disabled, see AVCODEC_LIST and following _LIST variables.
3367
3368 disable_components(){
3369     disabled ${1} && disable $(
3370         eval components="\$$(toupper ${1})_COMPONENTS"
3371         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3372     )
3373 }
3374
3375 map 'disable_components $v' $LIBRARY_LIST
3376
3377 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3378 set >> $logfile
3379
3380 test -n "$valgrind" && toolchain="valgrind-memcheck"
3381
3382 case "$toolchain" in
3383     *-asan)
3384         cc_default="${toolchain%-asan}"
3385         add_cflags  -fsanitize=address
3386         add_ldflags -fsanitize=address
3387     ;;
3388     *-tsan)
3389         cc_default="${toolchain%-tsan}"
3390         add_cflags  -fsanitize=thread -pie
3391         add_ldflags -fsanitize=thread -pie
3392         case "$toolchain" in
3393             gcc-tsan)
3394                 add_cflags  -fPIC
3395                 add_ldflags -fPIC
3396                 ;;
3397         esac
3398     ;;
3399     *-usan)
3400         cc_default="${toolchain%-usan}"
3401         add_cflags  -fsanitize=undefined
3402         add_ldflags -fsanitize=undefined
3403     ;;
3404     valgrind-*)
3405         target_exec_default="valgrind"
3406         case "$toolchain" in
3407             valgrind-massif)
3408                 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"
3409                 ;;
3410             valgrind-memcheck)
3411                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3412                 ;;
3413         esac
3414     ;;
3415     msvc)
3416         # Check whether the current MSVC version needs the C99 converter.
3417         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3418         # support enough of C99 to build ffmpeg. Default to the new
3419         # behaviour if the regexp was unable to match anything, since this
3420         # successfully parses the version number of existing supported
3421         # versions that require the converter (MSVC 2010 and 2012).
3422         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3423         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3424             cc_default="cl"
3425         else
3426             cc_default="c99wrap cl"
3427         fi
3428         ld_default="$source_path/compat/windows/mslink"
3429         nm_default="dumpbin -symbols"
3430         ar_default="lib"
3431         case "$arch" in
3432         arm*)
3433             as_default="armasm"
3434             ;;
3435         esac
3436         target_os_default="win32"
3437         # Use a relative path for TMPDIR. This makes sure all the
3438         # ffconf temp files are written with a relative path, avoiding
3439         # issues with msys/win32 path conversion for MSVC parameters
3440         # such as -Fo<file> or -out:<file>.
3441         TMPDIR=.
3442     ;;
3443     icl)
3444         cc_default="icl"
3445         ld_default="xilink"
3446         nm_default="dumpbin -symbols"
3447         ar_default="xilib"
3448         target_os_default="win32"
3449         TMPDIR=.
3450     ;;
3451     gcov)
3452         add_cflags  -fprofile-arcs -ftest-coverage
3453         add_ldflags -fprofile-arcs -ftest-coverage
3454     ;;
3455     hardened)
3456         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3457         add_cflags   -fno-strict-overflow -fstack-protector-all
3458         add_ldflags  -Wl,-z,relro -Wl,-z,now
3459     ;;
3460     ?*)
3461         die "Unknown toolchain $toolchain"
3462     ;;
3463 esac
3464
3465 test -n "$cross_prefix" && enable cross_compile
3466
3467 if enabled cross_compile; then
3468     test -n "$arch" && test -n "$target_os" ||
3469         die "Must specify target arch and OS when cross-compiling"
3470 fi
3471
3472 ar_default="${cross_prefix}${ar_default}"
3473 cc_default="${cross_prefix}${cc_default}"
3474 cxx_default="${cross_prefix}${cxx_default}"
3475 nm_default="${cross_prefix}${nm_default}"
3476 pkg_config_default="${cross_prefix}${pkg_config_default}"
3477 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3478     ranlib_default="${cross_prefix}${ranlib_default} -D"
3479 else
3480     ranlib_default="${cross_prefix}${ranlib_default}"
3481 fi
3482 strip_default="${cross_prefix}${strip_default}"
3483 windres_default="${cross_prefix}${windres_default}"
3484
3485 sysinclude_default="${sysroot}/usr/include"
3486
3487 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3488     target_exec target_os yasmexe
3489 enabled cross_compile || host_cc_default=$cc
3490 set_default host_cc
3491
3492 pkg_config_fail_message=""
3493 if ! $pkg_config --version >/dev/null 2>&1; then
3494     warn "$pkg_config not found, library detection may fail."
3495     pkg_config=false
3496 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3497     pkg_config_fail_message="
3498 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3499 fi
3500
3501 if test $doxygen != $doxygen_default && \
3502   ! $doxygen --version >/dev/null 2>&1; then
3503     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3504 fi
3505
3506 exesuf() {
3507     case $1 in
3508         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3509     esac
3510 }
3511
3512 EXESUF=$(exesuf $target_os)
3513 HOSTEXESUF=$(exesuf $host_os)
3514
3515 # set temporary file name
3516 : ${TMPDIR:=$TEMPDIR}
3517 : ${TMPDIR:=$TMP}
3518 : ${TMPDIR:=/tmp}
3519
3520 if [ -n "$tempprefix" ] ; then
3521     mktemp(){
3522         echo $tempprefix.${HOSTNAME}.${UID}
3523     }
3524 elif ! check_cmd mktemp -u XXXXXX; then
3525     # simple replacement for missing mktemp
3526     # NOT SAFE FOR GENERAL USE
3527     mktemp(){
3528         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3529     }
3530 fi
3531
3532 tmpfile(){
3533     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3534         (set -C; exec > $tmp) 2>/dev/null ||
3535         die "Unable to create temporary file in $TMPDIR."
3536     append TMPFILES $tmp
3537     eval $1=$tmp
3538 }
3539
3540 trap 'rm -f -- $TMPFILES' EXIT
3541
3542 tmpfile TMPASM .asm
3543 tmpfile TMPC   .c
3544 tmpfile TMPCPP .cpp
3545 tmpfile TMPE   $EXESUF
3546 tmpfile TMPH   .h
3547 tmpfile TMPM   .m
3548 tmpfile TMPO   .o
3549 tmpfile TMPS   .S
3550 tmpfile TMPSH  .sh
3551 tmpfile TMPV   .ver
3552
3553 unset -f mktemp
3554
3555 chmod +x $TMPE
3556
3557 # make sure we can execute files in $TMPDIR
3558 cat > $TMPSH 2>> $logfile <<EOF
3559 #! /bin/sh
3560 EOF
3561 chmod +x $TMPSH >> $logfile 2>&1
3562 if ! $TMPSH >> $logfile 2>&1; then
3563     cat <<EOF
3564 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3565 variable to another directory and make sure that it is not mounted noexec.
3566 EOF
3567     die "Sanity test failed."
3568 fi
3569
3570 armasm_flags(){
3571     for flag; do
3572         case $flag in
3573             # Filter out MSVC cl.exe options from cflags that shouldn't
3574             # be passed to gas-preprocessor
3575             -M[TD]*)                                            ;;
3576             *)                  echo $flag                      ;;
3577         esac
3578    done
3579 }
3580
3581 ccc_flags(){
3582     for flag; do
3583         case $flag in
3584             -std=c99)           echo -c99                       ;;
3585             -mcpu=*)            echo -arch ${flag#*=}           ;;
3586             -mieee)             echo -ieee                      ;;
3587             -O*|-fast)          echo $flag                      ;;
3588             -fno-math-errno)    echo -assume nomath_errno       ;;
3589             -g)                 echo -g3                        ;;
3590             -Wall)              echo -msg_enable level2         ;;
3591             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3592             -Wl,*)              echo $flag                      ;;
3593             -f*|-W*)                                            ;;
3594             *)                  echo $flag                      ;;
3595         esac
3596    done
3597 }
3598
3599 cparser_flags(){
3600     for flag; do
3601         case $flag in
3602             -Wno-switch)             echo -Wno-switch-enum ;;
3603             -Wno-format-zero-length) ;;
3604             -Wdisabled-optimization) ;;
3605             -Wno-pointer-sign)       echo -Wno-other ;;
3606             *)                       echo $flag ;;
3607         esac
3608     done
3609 }
3610
3611 msvc_common_flags(){
3612     for flag; do
3613         case $flag in
3614             # In addition to specifying certain flags under the compiler
3615             # specific filters, they must be specified here as well or else the
3616             # generic catch all at the bottom will print the original flag.
3617             -Wall)                ;;
3618             -std=c99)             ;;
3619             # Common flags
3620             -fomit-frame-pointer) ;;
3621             -g)                   echo -Z7 ;;
3622             -fno-math-errno)      ;;
3623             -fno-common)          ;;
3624             -fno-signed-zeros)    ;;
3625             -fPIC)                ;;
3626             -mthumb)              ;;
3627             -march=*)             ;;
3628             -lz)                  echo zlib.lib ;;
3629             -lavifil32)           echo vfw32.lib ;;
3630             -lavicap32)           echo vfw32.lib user32.lib ;;
3631             -lx264)               echo libx264.lib ;;
3632             -l*)                  echo ${flag#-l}.lib ;;
3633             -LARGEADDRESSAWARE)   echo $flag ;;
3634             -L*)                  echo -libpath:${flag#-L} ;;
3635             *)                    echo $flag ;;
3636         esac
3637     done
3638 }
3639
3640 msvc_flags(){
3641     msvc_common_flags "$@"
3642     for flag; do
3643         case $flag in
3644             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3645                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3646                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3647                                        -wd4307 \
3648                                        -wd4273 -wd4554 -wd4701 ;;
3649         esac
3650     done
3651 }
3652
3653 icl_flags(){
3654     msvc_common_flags "$@"
3655     for flag; do
3656         case $flag in
3657             # Despite what Intel's documentation says -Wall, which is supported
3658             # on Windows, does enable remarks so disable them here.
3659             -Wall)                echo $flag -Qdiag-disable:remark ;;
3660             -std=c99)             echo -Qstd=c99 ;;
3661             -flto)                echo -ipo ;;
3662         esac
3663     done
3664 }
3665
3666 icc_flags(){
3667     for flag; do
3668         case $flag in
3669             -flto)                echo -ipo ;;
3670             *)                    echo $flag ;;
3671         esac
3672     done
3673 }
3674
3675 pgi_flags(){
3676     for flag; do
3677         case $flag in
3678             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3679             -fomit-frame-pointer) echo -Mnoframe ;;
3680             -g)                   echo -gopt ;;
3681             *)                    echo $flag ;;
3682         esac
3683     done
3684 }
3685
3686 suncc_flags(){
3687     for flag; do
3688         case $flag in
3689             -march=*|-mcpu=*)
3690                 case "${flag#*=}" in
3691                     native)                   echo -xtarget=native       ;;
3692                     v9|niagara)               echo -xarch=sparc          ;;
3693                     ultrasparc)               echo -xarch=sparcvis       ;;
3694                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3695                     i586|pentium)             echo -xchip=pentium        ;;
3696                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3697                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3698                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3699                     pentium4*)          echo -xtarget=pentium4           ;;
3700                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3701                     *-sse3)             echo -xarch=sse3                 ;;
3702                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3703                     bonnell)                   echo -xarch=ssse3         ;;
3704                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3705                     westmere)                  echo -xtarget=westmere    ;;
3706                     silvermont)                echo -xarch=sse4_2        ;;
3707                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3708                     core-avx*|ivybridge|haswell|broadwell)
3709                                                echo -xarch=avx           ;;
3710                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3711                     btver1)                    echo -xarch=amdsse4a      ;;
3712                     btver2|bdver*)             echo -xarch=avx           ;;
3713                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3714                     k8|opteron|athlon64|athlon-fx)
3715                                                echo -xarch=sse2a         ;;
3716                     athlon*)                   echo -xarch=pentium_proa  ;;
3717                 esac
3718                 ;;
3719             -std=c99)             echo -xc99              ;;
3720             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3721             -fPIC)                echo -KPIC -xcode=pic32 ;;
3722             -W*,*)                echo $flag              ;;
3723             -f*-*|-W*|-mimpure-text)                      ;;
3724             -shared)              echo -G                 ;;
3725             *)                    echo $flag              ;;
3726         esac
3727     done
3728 }
3729
3730 tms470_flags(){
3731     for flag; do
3732         case $flag in
3733             -march=*|-mcpu=*)
3734                 case "${flag#*=}" in
3735                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3736                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3737                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3738                     armv6*|arm11*)          echo -mv=6   ;;
3739                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3740                                             echo -mv=5e  ;;
3741                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3742                 esac
3743                 ;;
3744             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3745             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3746             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3747             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3748             -msoft-float)   echo --float_support=vfplib       ;;
3749             -O[0-3]|-mf=*)  echo $flag                        ;;
3750             -g)             echo -g -mn                       ;;
3751             -pds=*)         echo $flag                        ;;
3752             -D*|-I*)        echo $flag                        ;;
3753             --gcc|--abi=*)  echo $flag                        ;;
3754             -me)            echo $flag                        ;;
3755         esac
3756     done
3757 }
3758
3759 probe_cc(){
3760     pfx=$1
3761     _cc=$2
3762     first=$3
3763
3764     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3765     unset _ld_o _ldflags _ld_lib _ld_path
3766     unset _depflags _DEPCMD _DEPFLAGS
3767     _flags_filter=echo
3768
3769     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3770         true # no-op to avoid reading stdin in following checks
3771     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3772         _type=llvm_gcc
3773         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3774         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3775         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3776         _cflags_speed='-O3'
3777         _cflags_size='-Os'
3778     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3779         _type=gcc
3780         gcc_version=$($_cc --version | head -n1)
3781         gcc_basever=$($_cc -dumpversion)
3782         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3783         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3784         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3785         case $gcc_basever in
3786             2) ;;
3787             2.*) ;;
3788             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3789         esac
3790         if [ "$first" = true ]; then
3791             case $gcc_basever in
3792                 4.2*)
3793                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3794             esac
3795         fi
3796         _cflags_speed='-O3'
3797         _cflags_size='-Os'
3798     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3799         _type=icc
3800         _ident=$($_cc --version | head -n1)
3801         _depflags='-MMD'
3802         _cflags_speed='-O3'
3803         _cflags_size='-Os'
3804         _cflags_noopt='-O1'
3805         _flags_filter=icc_flags
3806     elif $_cc -v 2>&1 | grep -q xlc; then
3807         _type=xlc
3808         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3809         _cflags_speed='-O5'
3810         _cflags_size='-O5 -qcompact'
3811     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3812         _type=ccc
3813         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3814         _DEPFLAGS='-M'
3815         _cflags_speed='-fast'
3816         _cflags_size='-O1'
3817         _flags_filter=ccc_flags
3818     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3819         test -d "$sysroot" || die "No valid sysroot specified."
3820         _type=armcc
3821         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3822         armcc_conf="$PWD/armcc.conf"
3823         $_cc --arm_linux_configure                 \
3824              --arm_linux_config_file="$armcc_conf" \
3825              --configure_sysroot="$sysroot"        \
3826              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3827              die "Error creating armcc configuration file."
3828         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3829         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3830         as_default="${cross_prefix}gcc"
3831         _depflags='-MMD'
3832         _cflags_speed='-O3'
3833         _cflags_size='-Os'
3834     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3835         _type=tms470
3836         _ident=$($_cc -version | head -n1 | tr -s ' ')
3837         _flags='--gcc --abi=eabi -me'
3838         _cc_e='-ppl -fe=$@'
3839         _cc_o='-fe=$@'
3840         _depflags='-ppa -ppd=$(@:.o=.d)'
3841         _cflags_speed='-O3 -mf=5'
3842         _cflags_size='-O3 -mf=2'
3843         _flags_filter=tms470_flags
3844     elif $_cc -v 2>&1 | grep -q clang; then
3845         _type=clang
3846         _ident=$($_cc --version 2>/dev/null | head -n1)
3847         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3848         _cflags_speed='-O3'
3849         _cflags_size='-Os'
3850     elif $_cc -V 2>&1 | grep -q Sun; then
3851         _type=suncc
3852         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3853         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3854         _DEPFLAGS='-xM1 -xc99'
3855         _ldflags='-std=c99'
3856         _cflags_speed='-O5'
3857         _cflags_size='-O5 -xspace'
3858         _flags_filter=suncc_flags
3859     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3860         _type=pathscale
3861         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3862         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3863         _cflags_speed='-O2'
3864         _cflags_size='-Os'
3865         _flags_filter='filter_out -Wdisabled-optimization'
3866     elif $_cc -v 2>&1 | grep -q Open64; then
3867         _type=open64
3868         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3869         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3870         _cflags_speed='-O2'
3871         _cflags_size='-Os'
3872         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3873     elif $_cc -V 2>&1 | grep -q Portland; then
3874         _type=pgi
3875         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3876         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3877         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3878         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3879         _cflags_noopt="-O"
3880         _flags_filter=pgi_flags
3881     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3882         _type=armasm
3883         _ident=$($_cc | head -n1)
3884         # 4509: "This form of conditional instruction is deprecated"
3885         _flags="-nologo -ignore 4509"
3886         _flags_filter=armasm_flags
3887     elif $_cc 2>&1 | grep -q Intel; then
3888         _type=icl
3889         _ident=$($_cc 2>&1 | head -n1)
3890         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3891         # Not only is O3 broken on 13.x+ but it is slower on all previous
3892         # versions (tested) as well.
3893         _cflags_speed="-O2"
3894         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3895         if $_cc 2>&1 | grep -q Linker; then
3896             _ld_o='-out:$@'
3897         else
3898             _ld_o='-Fe$@'
3899         fi
3900         _cc_o='-Fo$@'
3901         _cc_e='-P'
3902         _flags_filter=icl_flags
3903         _ld_lib='lib%.a'
3904         _ld_path='-libpath:'
3905         # -Qdiag-error to make icl error when seeing certain unknown arguments
3906         _flags='-nologo -Qdiag-error:4044,10157'
3907         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3908         # with MSVC which enables it by default.
3909         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3910         disable stripping
3911     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3912         _type=msvc
3913         _ident=$($_cc 2>&1 | head -n1)
3914         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3915         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3916         _cflags_speed="-O2"
3917         _cflags_size="-O1"
3918         if $_cc -nologo- 2>&1 | grep -q Linker; then
3919             _ld_o='-out:$@'
3920         else
3921             _ld_o='-Fe$@'
3922         fi
3923         _cc_o='-Fo$@'
3924         _cc_e='-P -Fi$@'
3925         _flags_filter=msvc_flags
3926         _ld_lib='lib%.a'
3927         _ld_path='-libpath:'
3928         _flags='-nologo'
3929         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3930         disable stripping
3931     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3932         _type=cparser
3933         _ident=$($_cc --version | head -n1)
3934         _depflags='-MMD'
3935         _cflags_speed='-O4'
3936         _cflags_size='-O2'
3937         _flags_filter=cparser_flags
3938     fi
3939
3940     eval ${pfx}_type=\$_type
3941     eval ${pfx}_ident=\$_ident
3942 }
3943
3944 set_ccvars(){
3945     eval ${1}_C=\${_cc_c-\${${1}_C}}
3946     eval ${1}_E=\${_cc_e-\${${1}_E}}
3947     eval ${1}_O=\${_cc_o-\${${1}_O}}
3948
3949     if [ -n "$_depflags" ]; then
3950         eval ${1}_DEPFLAGS=\$_depflags
3951     else
3952         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3953         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3954         eval DEP${1}FLAGS=\$_flags
3955     fi
3956 }
3957
3958 probe_cc cc "$cc" "true"
3959 cflags_filter=$_flags_filter
3960 cflags_speed=$_cflags_speed
3961 cflags_size=$_cflags_size
3962 cflags_noopt=$_cflags_noopt
3963 add_cflags $_flags $_cflags
3964 cc_ldflags=$_ldflags
3965 set_ccvars CC
3966
3967 probe_cc hostcc "$host_cc"
3968 host_cflags_filter=$_flags_filter
3969 add_host_cflags  $_flags $_cflags
3970 set_ccvars HOSTCC
3971
3972 test -n "$cc_type" && enable $cc_type ||
3973     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3974
3975 : ${as_default:=$cc}
3976 : ${objcc_default:=$cc}
3977 : ${dep_cc_default:=$cc}
3978 : ${ld_default:=$cc}
3979 : ${host_ld_default:=$host_cc}
3980 set_default ar as objcc dep_cc ld host_ld windres
3981
3982 probe_cc as "$as"
3983 asflags_filter=$_flags_filter
3984 add_asflags $_flags $_cflags
3985 set_ccvars AS
3986
3987 probe_cc objcc "$objcc"
3988 objcflags_filter=$_flags_filter
3989 add_objcflags $_flags $_cflags
3990 set_ccvars OBJC
3991
3992 probe_cc ld "$ld"
3993 ldflags_filter=$_flags_filter
3994 add_ldflags $_flags $_ldflags
3995 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3996 LD_O=${_ld_o-$LD_O}
3997 LD_LIB=${_ld_lib-$LD_LIB}
3998 LD_PATH=${_ld_path-$LD_PATH}
3999
4000 probe_cc hostld "$host_ld"
4001 host_ldflags_filter=$_flags_filter
4002 add_host_ldflags $_flags $_ldflags
4003 HOSTLD_O=${_ld_o-$HOSTLD_O}
4004
4005 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4006     probe_cc depcc "$dep_cc"
4007     CCDEP=${_DEPCMD:-$DEPCMD}
4008     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4009     DEPCCFLAGS=$_flags
4010 fi
4011
4012 if $ar 2>&1 | grep -q Microsoft; then
4013     arflags="-nologo"
4014     ar_o='-out:$@'
4015 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4016     arflags="rq"
4017     ar_o='$@'
4018 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4019     arflags='-Xany -r -c'
4020     ar_o='$@'
4021 elif $ar 2>&1 | grep -q "\[D\] "; then
4022     arflags="rcD"
4023     ar_o='$@'
4024 else
4025     arflags="rc"
4026     ar_o='$@'
4027 fi
4028
4029 add_cflags $extra_cflags
4030 add_cxxflags $extra_cxxflags
4031 add_objcflags $extra_objcflags
4032 add_asflags $extra_cflags
4033
4034 if test -n "$sysroot"; then
4035     case "$cc_type" in
4036         gcc|llvm_gcc|clang)
4037             add_cppflags --sysroot="$sysroot"
4038             add_ldflags --sysroot="$sysroot"
4039 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4040             add_cppflags -isysroot "$sysroot"
4041             add_ldflags -isysroot "$sysroot"
4042         ;;
4043         tms470)
4044             add_cppflags -I"$sysinclude"
4045             add_ldflags  --sysroot="$sysroot"
4046         ;;
4047     esac
4048 fi
4049
4050 if test "$cpu" = host; then
4051     enabled cross_compile &&
4052         die "--cpu=host makes no sense when cross-compiling."
4053
4054     case "$cc_type" in
4055         gcc|llvm_gcc)
4056             check_native(){
4057                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4058                 sed -n "/cc1.*$1=/{
4059                             s/.*$1=\\([^ ]*\\).*/\\1/
4060                             p
4061                             q
4062                         }" $TMPE
4063             }
4064             cpu=$(check_native -march || check_native -mcpu)
4065         ;;
4066         clang)
4067             check_native(){
4068                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4069                 sed -n "/cc1.*-target-cpu /{
4070                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4071                             p
4072                             q
4073                         }" $TMPE
4074             }
4075             cpu=$(check_native -march)
4076         ;;
4077     esac
4078
4079     test "${cpu:-host}" = host &&
4080         die "--cpu=host not supported with compiler $cc"
4081 fi
4082
4083 # Deal with common $arch aliases
4084 case "$arch" in
4085     aarch64|arm64)
4086         arch="aarch64"
4087     ;;
4088     arm*|iPad*|iPhone*)
4089         arch="arm"
4090     ;;
4091     mips*|IP*)
4092         case "$arch" in
4093