Merge commit '12b14382861fbf19378afcddaa19cd9a949a86a3'
[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
95 Licensing options:
96   --enable-gpl             allow use of GPL code, the resulting libs
97                            and binaries will be under GPL [no]
98   --enable-version3        upgrade (L)GPL to version 3 [no]
99   --enable-nonfree         allow use of nonfree code, the resulting libs
100                            and binaries will be unredistributable [no]
101
102 Configuration options:
103   --disable-static         do not build static libraries [no]
104   --enable-shared          build shared libraries [no]
105   --enable-small           optimize for size instead of speed
106   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
107   --enable-gray            enable full grayscale support (slower color)
108   --disable-swscale-alpha  disable alpha channel support in swscale
109   --disable-all            disable building components, libraries and programs
110   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
111   --enable-raise-major     increase major version numbers in sonames [no]
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Hardware accelerators:
152   --disable-d3d11va        disable D3D11VA code [autodetect]
153   --disable-dxva2          disable DXVA2 code [autodetect]
154   --disable-vaapi          disable VAAPI code [autodetect]
155   --disable-vda            disable VDA code [autodetect]
156   --disable-vdpau          disable VDPAU code [autodetect]
157   --enable-videotoolbox    enable VideoToolbox 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   --enable-avisynth        enable reading of AviSynth script files [no]
198   --disable-bzlib          disable bzlib [autodetect]
199   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
200   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
201   --enable-frei0r          enable frei0r video filtering [no]
202   --enable-gnutls          enable gnutls, needed for https support
203                            if openssl is not used [no]
204   --disable-iconv          disable iconv [autodetect]
205   --enable-ladspa          enable LADSPA audio filtering [no]
206   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
207   --enable-libass          enable libass subtitles rendering,
208                            needed for subtitles and ass filter [no]
209   --enable-libbluray       enable BluRay reading using libbluray [no]
210   --enable-libbs2b         enable bs2b DSP library [no]
211   --enable-libcaca         enable textual display using libcaca [no]
212   --enable-libcelt         enable CELT decoding via libcelt [no]
213   --enable-libcdio         enable audio CD grabbing with libcdio [no]
214   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
215                            and libraw1394 [no]
216   --enable-libdcadec       enable DCA decoding via libdcadec [no]
217   --enable-libfaac         enable AAC encoding via libfaac [no]
218   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
219   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
220   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
221   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
222   --enable-libgme          enable Game Music Emu via libgme [no]
223   --enable-libgsm          enable GSM de/encoding via libgsm [no]
224   --enable-libiec61883     enable iec61883 via libiec61883 [no]
225   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
226   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
227   --enable-libmfx          enable HW acceleration through libmfx
228   --enable-libmodplug      enable ModPlug via libmodplug [no]
229   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
230   --enable-libnut          enable NUT (de)muxing via libnut,
231                            native (de)muxer exists [no]
232   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
233   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
234   --enable-libopencv       enable video filtering via libopencv [no]
235   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
236   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
237   --enable-libopus         enable Opus de/encoding via libopus [no]
238   --enable-libpulse        enable Pulseaudio input via libpulse [no]
239   --enable-librubberband   enable rubberband needed for rubberband filter [no]
240   --enable-libquvi         enable quvi input via libquvi [no]
241   --enable-librtmp         enable RTMP[E] support via librtmp [no]
242   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
243   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
244   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
245   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
246   --enable-libsoxr         enable Include libsoxr resampling [no]
247   --enable-libspeex        enable Speex de/encoding via libspeex [no]
248   --enable-libssh          enable SFTP protocol via libssh [no]
249   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
250   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
251   --enable-libtheora       enable Theora encoding via libtheora [no]
252   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
253   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
254   --enable-libv4l2         enable libv4l2/v4l-utils [no]
255   --enable-libvidstab      enable video stabilization using vid.stab [no]
256   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
257   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
258   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
259                            native implementation exists [no]
260   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
261   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
262   --enable-libwebp         enable WebP encoding via libwebp [no]
263   --enable-libx264         enable H.264 encoding via x264 [no]
264   --enable-libx265         enable HEVC encoding via x265 [no]
265   --enable-libxavs         enable AVS encoding via xavs [no]
266   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
267   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
268   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
269   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
270   --enable-libxvid         enable Xvid encoding via xvidcore,
271                            native MPEG-4/Xvid encoder exists [no]
272   --enable-libzimg         enable z.lib, needed for zscale filter [no]
273   --enable-libzmq          enable message passing via libzmq [no]
274   --enable-libzvbi         enable teletext support via libzvbi [no]
275   --disable-lzma           disable lzma [autodetect]
276   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
277   --enable-mmal            enable decoding via MMAL [no]
278   --enable-nvenc           enable NVIDIA NVENC support [no]
279   --enable-openal          enable OpenAL 1.1 capture support [no]
280   --enable-opencl          enable OpenCL code
281   --enable-opengl          enable OpenGL rendering [no]
282   --enable-openssl         enable openssl, needed for https support
283                            if gnutls is not used [no]
284   --disable-schannel       disable SChannel SSP, needed for TLS support on
285                            Windows if openssl and gnutls are not used [autodetect]
286   --disable-sdl            disable sdl [autodetect]
287   --disable-securetransport disable Secure Transport, needed for TLS support
288                            on OSX if openssl and gnutls are not used [autodetect]
289   --enable-x11grab         enable X11 grabbing (legacy) [no]
290   --disable-xlib           disable xlib [autodetect]
291   --disable-zlib           disable zlib [autodetect]
292
293 Toolchain options:
294   --arch=ARCH              select architecture [$arch]
295   --cpu=CPU                select the minimum required CPU (affects
296                            instruction selection, may crash on older CPUs)
297   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
298   --progs-suffix=SUFFIX    program name suffix []
299   --enable-cross-compile   assume a cross-compiler is used
300   --sysroot=PATH           root of cross-build tree
301   --sysinclude=PATH        location of cross-build system headers
302   --target-os=OS           compiler targets OS [$target_os]
303   --target-exec=CMD        command to run executables on target
304   --target-path=DIR        path to view of build directory on target
305   --target-samples=DIR     path to samples directory on target
306   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
307   --toolchain=NAME         set tool defaults according to NAME
308   --nm=NM                  use nm tool NM [$nm_default]
309   --ar=AR                  use archive tool AR [$ar_default]
310   --as=AS                  use assembler AS [$as_default]
311   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
312   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
313   --cc=CC                  use C compiler CC [$cc_default]
314   --cxx=CXX                use C compiler CXX [$cxx_default]
315   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
316   --ld=LD                  use linker LD [$ld_default]
317   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
318   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
319   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
320   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
321   --host-cc=HOSTCC         use host C compiler HOSTCC
322   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
323   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
324   --host-ld=HOSTLD         use host linker HOSTLD
325   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
326   --host-libs=HLIBS        use libs HLIBS when linking for host
327   --host-os=OS             compiler host OS [$target_os]
328   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
329   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
330   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
331   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
332   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
333   --extra-libs=ELIBS       add ELIBS [$ELIBS]
334   --extra-version=STRING   version string suffix []
335   --optflags=OPTFLAGS      override optimization-related compiler flags
336   --build-suffix=SUFFIX    library name suffix []
337   --enable-pic             build position-independent code
338   --enable-thumb           compile for Thumb instruction set
339   --enable-lto             use link-time optimization
340   --env="ENV=override"     override the environment variables
341
342 Advanced options (experts only):
343   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
344   --custom-allocator=NAME  use a supported custom allocator
345   --disable-symver         disable symbol versioning
346   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
347   --disable-safe-bitstream-reader
348                            disable buffer boundary checking in bitreaders
349                            (faster, but may crash)
350   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
351   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
352
353 Optimization options (experts only):
354   --disable-asm            disable all assembly optimizations
355   --disable-altivec        disable AltiVec optimizations
356   --disable-vsx            disable VSX optimizations
357   --disable-power8         disable POWER8 optimizations
358   --disable-amd3dnow       disable 3DNow! optimizations
359   --disable-amd3dnowext    disable 3DNow! extended optimizations
360   --disable-mmx            disable MMX optimizations
361   --disable-mmxext         disable MMXEXT optimizations
362   --disable-sse            disable SSE optimizations
363   --disable-sse2           disable SSE2 optimizations
364   --disable-sse3           disable SSE3 optimizations
365   --disable-ssse3          disable SSSE3 optimizations
366   --disable-sse4           disable SSE4 optimizations
367   --disable-sse42          disable SSE4.2 optimizations
368   --disable-avx            disable AVX optimizations
369   --disable-xop            disable XOP optimizations
370   --disable-fma3           disable FMA3 optimizations
371   --disable-fma4           disable FMA4 optimizations
372   --disable-avx2           disable AVX2 optimizations
373   --disable-aesni          disable AESNI optimizations
374   --disable-armv5te        disable armv5te optimizations
375   --disable-armv6          disable armv6 optimizations
376   --disable-armv6t2        disable armv6t2 optimizations
377   --disable-vfp            disable VFP optimizations
378   --disable-neon           disable NEON optimizations
379   --disable-inline-asm     disable use of inline assembly
380   --disable-yasm           disable use of nasm/yasm assembly
381   --disable-mips32r5       disable MIPS32R5 optimizations
382   --disable-mips64r6       disable MIPS64R6 optimizations
383   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
384   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
385   --disable-msa            disable MSA optimizations
386   --disable-mipsfpu        disable floating point MIPS optimizations
387   --disable-mmi            disable Loongson SIMD optimizations
388   --disable-fast-unaligned consider unaligned accesses slow
389
390 Developer options (useful when working on FFmpeg itself):
391   --disable-debug          disable debugging symbols
392   --enable-debug=LEVEL     set the debug level [$debuglevel]
393   --disable-optimizations  disable compiler optimizations
394   --enable-extra-warnings  enable more compiler warnings
395   --disable-stripping      disable stripping of executables and shared libraries
396   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
397                            2 causes a slowdown at runtime.
398   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
399   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
400                            leaks and errors, using the specified valgrind binary.
401                            Cannot be combined with --target-exec
402   --enable-ftrapv          Trap arithmetic overflows
403   --samples=PATH           location of test samples for FATE, if not set use
404                            \$FATE_SAMPLES at make invocation time.
405   --enable-neon-clobber-test check NEON registers for clobbering (should be
406                            used only for debugging purposes)
407   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
408                            should be used only for debugging purposes)
409   --enable-random          randomly enable/disable components
410   --disable-random
411   --enable-random=LIST     randomly enable/disable specific components or
412   --disable-random=LIST    component groups. LIST is a comma-separated list
413                            of NAME[:PROB] entries where NAME is a component
414                            (group) and PROB the probability associated with
415                            NAME (default 0.5).
416   --random-seed=VALUE      seed value for --enable/disable-random
417   --disable-valgrind-backtrace do not print a backtrace under Valgrind
418                            (only applies to --disable-optimizations builds)
419
420 NOTE: Object files are built at the place where configure is launched.
421 EOF
422   exit 0
423 }
424
425 quotes='""'
426 if test -t 1 && which tput >/dev/null 2>&1; then
427     ncolors=$(tput colors)
428     if test -n "$ncolors" && test $ncolors -ge 8; then
429         bold_color=$(tput bold)
430         warn_color=$(tput setaf 3)
431         error_color=$(tput setaf 1)
432         reset_color=$(tput sgr0)
433     fi
434     # 72 used instead of 80 since that's the default of pr
435     ncols=$(tput cols)
436 fi
437 : ${ncols:=72}
438
439 log(){
440     echo "$@" >> $logfile
441 }
442
443 log_file(){
444     log BEGIN $1
445     pr -n -t $1 >> $logfile
446     log END $1
447 }
448
449 warn(){
450     log "WARNING: $*"
451     WARNINGS="${WARNINGS}WARNING: $*\n"
452 }
453
454 die(){
455     log "$@"
456     echo "$error_color$bold_color$@$reset_color"
457     cat <<EOF
458
459 If you think configure made a mistake, make sure you are using the latest
460 version from Git.  If the latest version fails, report the problem to the
461 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
462 EOF
463     if disabled logging; then
464         cat <<EOF
465 Rerun configure with logging enabled (do not use --disable-logging), and
466 include the log this produces with your report.
467 EOF
468     else
469         cat <<EOF
470 Include the log file "$logfile" produced by configure as this will help
471 solve the problem.
472 EOF
473     fi
474     exit 1
475 }
476
477 # Avoid locale weirdness, besides we really just want to translate ASCII.
478 toupper(){
479     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
480 }
481
482 tolower(){
483     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
484 }
485
486 c_escape(){
487     echo "$*" | sed 's/["\\]/\\\0/g'
488 }
489
490 sh_quote(){
491     v=$(echo "$1" | sed "s/'/'\\\\''/g")
492     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
493     echo "$v"
494 }
495
496 cleanws(){
497     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
498 }
499
500 filter(){
501     pat=$1
502     shift
503     for v; do
504         eval "case $v in $pat) echo $v ;; esac"
505     done
506 }
507
508 filter_out(){
509     pat=$1
510     shift
511     for v; do
512         eval "case $v in $pat) ;; *) echo $v ;; esac"
513     done
514 }
515
516 map(){
517     m=$1
518     shift
519     for v; do eval $m; done
520 }
521
522 add_suffix(){
523     suffix=$1
524     shift
525     for v; do echo ${v}${suffix}; done
526 }
527
528 set_all(){
529     value=$1
530     shift
531     for var in $*; do
532         eval $var=$value
533     done
534 }
535
536 set_weak(){
537     value=$1
538     shift
539     for var; do
540         eval : \${$var:=$value}
541     done
542 }
543
544 sanitize_var_name(){
545     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
546 }
547
548 set_safe(){
549     var=$1
550     shift
551     eval $(sanitize_var_name "$var")='$*'
552 }
553
554 get_safe(){
555     eval echo \$$(sanitize_var_name "$1")
556 }
557
558 pushvar(){
559     for pvar in $*; do
560         eval level=\${${pvar}_level:=0}
561         eval ${pvar}_${level}="\$$pvar"
562         eval ${pvar}_level=$(($level+1))
563     done
564 }
565
566 popvar(){
567     for pvar in $*; do
568         eval level=\${${pvar}_level:-0}
569         test $level = 0 && continue
570         eval level=$(($level-1))
571         eval $pvar="\${${pvar}_${level}}"
572         eval ${pvar}_level=$level
573         eval unset ${pvar}_${level}
574     done
575 }
576
577 enable(){
578     set_all yes $*
579 }
580
581 disable(){
582     set_all no $*
583 }
584
585 enable_weak(){
586     set_weak yes $*
587 }
588
589 disable_weak(){
590     set_weak no $*
591 }
592
593 enable_safe(){
594     for var; do
595         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
596     done
597 }
598
599 disable_safe(){
600     for var; do
601         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
602     done
603 }
604
605 do_enable_deep(){
606     for var; do
607         enabled $var && continue
608         eval sel="\$${var}_select"
609         eval sgs="\$${var}_suggest"
610         pushvar var sgs
611         enable_deep $sel
612         popvar sgs
613         enable_deep_weak $sgs
614         popvar var
615     done
616 }
617
618 enable_deep(){
619     do_enable_deep $*
620     enable $*
621 }
622
623 enable_deep_weak(){
624     for var; do
625         disabled $var && continue
626         pushvar var
627         do_enable_deep $var
628         popvar var
629         enable_weak $var
630     done
631 }
632
633 enabled(){
634     test "${1#!}" = "$1" && op='=' || op=!=
635     eval test "x\$${1#!}" $op "xyes"
636 }
637
638 disabled(){
639     test "${1#!}" = "$1" && op='=' || op=!=
640     eval test "x\$${1#!}" $op "xno"
641 }
642
643 enabled_all(){
644     for opt; do
645         enabled $opt || return 1
646     done
647 }
648
649 disabled_all(){
650     for opt; do
651         disabled $opt || return 1
652     done
653 }
654
655 enabled_any(){
656     for opt; do
657         enabled $opt && return 0
658     done
659 }
660
661 disabled_any(){
662     for opt; do
663         disabled $opt && return 0
664     done
665     return 1
666 }
667
668 set_default(){
669     for opt; do
670         eval : \${$opt:=\$${opt}_default}
671     done
672 }
673
674 is_in(){
675     value=$1
676     shift
677     for var in $*; do
678         [ $var = $value ] && return 0
679     done
680     return 1
681 }
682
683 do_check_deps(){
684     for cfg; do
685         cfg="${cfg#!}"
686         enabled ${cfg}_checking && die "Circular dependency for $cfg."
687         disabled ${cfg}_checking && continue
688         enable ${cfg}_checking
689         append allopts $cfg
690
691         eval dep_all="\$${cfg}_deps"
692         eval dep_any="\$${cfg}_deps_any"
693         eval dep_sel="\$${cfg}_select"
694         eval dep_sgs="\$${cfg}_suggest"
695         eval dep_ifa="\$${cfg}_if"
696         eval dep_ifn="\$${cfg}_if_any"
697
698         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
699         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
700         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
701
702         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
703         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
704         enabled_all  $dep_all || disable $cfg
705         enabled_any  $dep_any || disable $cfg
706         disabled_any $dep_sel && disable $cfg
707
708         if enabled $cfg; then
709             enable_deep $dep_sel
710             enable_deep_weak $dep_sgs
711         fi
712
713         disable ${cfg}_checking
714     done
715 }
716
717 check_deps(){
718     unset allopts
719
720     do_check_deps "$@"
721
722     for cfg in $allopts; do
723         enabled $cfg || continue
724         eval dep_extralibs="\$${cfg}_extralibs"
725         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
726     done
727 }
728
729 print_config(){
730     pfx=$1
731     files=$2
732     shift 2
733     map 'eval echo "$v \${$v:-no}"' "$@" |
734     awk "BEGIN { split(\"$files\", files) }
735         {
736             c = \"$pfx\" toupper(\$1);
737             v = \$2;
738             sub(/yes/, 1, v);
739             sub(/no/,  0, v);
740             for (f in files) {
741                 file = files[f];
742                 if (file ~ /\\.h\$/) {
743                     printf(\"#define %s %d\\n\", c, v) >>file;
744                 } else if (file ~ /\\.asm\$/) {
745                     printf(\"%%define %s %d\\n\", c, v) >>file;
746                 } else if (file ~ /\\.mak\$/) {
747                     n = -v ? \"\" : \"!\";
748                     printf(\"%s%s=yes\\n\", n, c) >>file;
749                 } else if (file ~ /\\.texi\$/) {
750                     pre = -v ? \"\" : \"@c \";
751                     yesno = \$2;
752                     c2 = tolower(c);
753                     gsub(/_/, \"-\", c2);
754                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
755                 }
756             }
757         }"
758 }
759
760 print_enabled(){
761     suf=$1
762     shift
763     for v; do
764         enabled $v && printf "%s\n" ${v%$suf};
765     done
766 }
767
768 append(){
769     var=$1
770     shift
771     eval "$var=\"\$$var $*\""
772 }
773
774 prepend(){
775     var=$1
776     shift
777     eval "$var=\"$* \$$var\""
778 }
779
780 unique(){
781     var=$1
782     uniq_list=""
783     for tok in $(eval echo \$$var); do
784         uniq_list="$(filter_out $tok $uniq_list) $tok"
785     done
786     eval "$var=\"${uniq_list}\""
787 }
788
789 add_cppflags(){
790     append CPPFLAGS "$@"
791 }
792
793 add_cflags(){
794     append CFLAGS $($cflags_filter "$@")
795 }
796
797 add_cxxflags(){
798     append CXXFLAGS $($cflags_filter "$@")
799 }
800
801 add_asflags(){
802     append ASFLAGS $($asflags_filter "$@")
803 }
804
805 add_ldflags(){
806     append LDFLAGS $($ldflags_filter "$@")
807 }
808
809 add_ldexeflags(){
810     append LDEXEFLAGS $($ldflags_filter "$@")
811 }
812
813 add_ldlibflags(){
814     append LDLIBFLAGS $($ldflags_filter "$@")
815 }
816
817 add_stripflags(){
818     append ASMSTRIPFLAGS "$@"
819 }
820
821 add_extralibs(){
822     prepend extralibs $($ldflags_filter "$@")
823 }
824
825 add_host_cppflags(){
826     append host_cppflags "$@"
827 }
828
829 add_host_cflags(){
830     append host_cflags $($host_cflags_filter "$@")
831 }
832
833 add_host_ldflags(){
834     append host_ldflags $($host_ldflags_filter "$@")
835 }
836
837 add_compat(){
838     append compat_objs $1
839     shift
840     map 'add_cppflags -D$v' "$@"
841 }
842
843 check_cmd(){
844     log "$@"
845     "$@" >> $logfile 2>&1
846 }
847
848 check_stat(){
849     log check_stat "$@"
850     stat "$1" >> $logfile 2>&1
851 }
852
853 cc_o(){
854     eval printf '%s\\n' $CC_O
855 }
856
857 cc_e(){
858     eval printf '%s\\n' $CC_E
859 }
860
861 check_cc(){
862     log check_cc "$@"
863     cat > $TMPC
864     log_file $TMPC
865     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
866 }
867
868 check_cxx(){
869     log check_cxx "$@"
870     cat > $TMPCPP
871     log_file $TMPCPP
872     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
873 }
874
875 check_oc(){
876     log check_oc "$@"
877     cat > $TMPM
878     log_file $TMPM
879     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
880 }
881
882 check_cpp(){
883     log check_cpp "$@"
884     cat > $TMPC
885     log_file $TMPC
886     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
887 }
888
889 as_o(){
890     eval printf '%s\\n' $AS_O
891 }
892
893 check_as(){
894     log check_as "$@"
895     cat > $TMPS
896     log_file $TMPS
897     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
898 }
899
900 check_inline_asm(){
901     log check_inline_asm "$@"
902     name="$1"
903     code="$2"
904     shift 2
905     disable $name
906     check_cc "$@" <<EOF && enable $name
907 void foo(void){ __asm__ volatile($code); }
908 EOF
909 }
910
911 check_insn(){
912     log check_insn "$@"
913     check_inline_asm ${1}_inline "\"$2\""
914     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
915 }
916
917 check_yasm(){
918     log check_yasm "$@"
919     echo "$1" > $TMPS
920     log_file $TMPS
921     shift 1
922     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
923 }
924
925 ld_o(){
926     eval printf '%s\\n' $LD_O
927 }
928
929 check_ld(){
930     log check_ld "$@"
931     type=$1
932     shift 1
933     flags=$(filter_out '-l*|*.so' $@)
934     libs=$(filter '-l*|*.so' $@)
935     check_$type $($cflags_filter $flags) || return
936     flags=$($ldflags_filter $flags)
937     libs=$($ldflags_filter $libs)
938     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
939 }
940
941 print_include(){
942     hdr=$1
943     test "${hdr%.h}" = "${hdr}" &&
944         echo "#include $hdr"    ||
945         echo "#include <$hdr>"
946 }
947
948 check_code(){
949     log check_code "$@"
950     check=$1
951     headers=$2
952     code=$3
953     shift 3
954     {
955         for hdr in $headers; do
956             print_include $hdr
957         done
958         echo "int main(void) { $code; return 0; }"
959     } | check_$check "$@"
960 }
961
962 check_cppflags(){
963     log check_cppflags "$@"
964     check_cc "$@" <<EOF && append CPPFLAGS "$@"
965 int x;
966 EOF
967 }
968
969 test_cflags(){
970     log test_cflags "$@"
971     set -- $($cflags_filter "$@")
972     check_cc "$@" <<EOF
973 int x;
974 EOF
975 }
976
977 check_cflags(){
978     log check_cflags "$@"
979     test_cflags "$@" && add_cflags "$@"
980 }
981
982 check_cxxflags(){
983     log check_cxxflags "$@"
984     set -- $($cflags_filter "$@")
985     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
986 int x;
987 EOF
988 }
989
990 test_ldflags(){
991     log test_ldflags "$@"
992     check_ld "cc" "$@" <<EOF
993 int main(void){ return 0; }
994 EOF
995 }
996
997 check_ldflags(){
998     log check_ldflags "$@"
999     test_ldflags "$@" && add_ldflags "$@"
1000 }
1001
1002 test_stripflags(){
1003     log test_stripflags "$@"
1004     # call check_cc to get a fresh TMPO
1005     check_cc <<EOF
1006 int main(void) { return 0; }
1007 EOF
1008     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1009 }
1010
1011 check_stripflags(){
1012     log check_stripflags "$@"
1013     test_stripflags "$@" && add_stripflags "$@"
1014 }
1015
1016 check_header(){
1017     log check_header "$@"
1018     header=$1
1019     shift
1020     disable_safe $header
1021     check_cpp "$@" <<EOF && enable_safe $header
1022 #include <$header>
1023 int x;
1024 EOF
1025 }
1026
1027 check_header_oc(){
1028     log check_header_oc "$@"
1029     rm -f -- "$TMPO"
1030     header=$1
1031     shift
1032     disable_safe $header
1033     {
1034        echo "#include <$header>"
1035        echo "int main(void) { return 0; }"
1036     } | check_oc && check_stat "$TMPO" && enable_safe $headers
1037 }
1038
1039 check_func(){
1040     log check_func "$@"
1041     func=$1
1042     shift
1043     disable $func
1044     check_ld "cc" "$@" <<EOF && enable $func
1045 extern int $func();
1046 int main(void){ $func(); }
1047 EOF
1048 }
1049
1050 check_mathfunc(){
1051     log check_mathfunc "$@"
1052     func=$1
1053     narg=$2
1054     shift 2
1055     test $narg = 2 && args="f, g" || args="f"
1056     disable $func
1057     check_ld "cc" "$@" <<EOF && enable $func
1058 #include <math.h>
1059 float foo(float f, float g) { return $func($args); }
1060 int main(void){ return (int) foo; }
1061 EOF
1062 }
1063
1064 check_func_headers(){
1065     log check_func_headers "$@"
1066     headers=$1
1067     funcs=$2
1068     shift 2
1069     {
1070         for hdr in $headers; do
1071             print_include $hdr
1072         done
1073         for func in $funcs; do
1074             echo "long check_$func(void) { return (long) $func; }"
1075         done
1076         echo "int main(void) { return 0; }"
1077     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1078 }
1079
1080 check_class_headers_cpp(){
1081     log check_class_headers_cpp "$@"
1082     headers=$1
1083     classes=$2
1084     shift 2
1085     {
1086         for hdr in $headers; do
1087             echo "#include <$hdr>"
1088         done
1089         echo "int main(void) { "
1090         i=1
1091         for class in $classes; do
1092             echo "$class obj$i;"
1093             i=$(expr $i + 1)
1094         done
1095         echo "return 0; }"
1096     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1097 }
1098
1099 check_cpp_condition(){
1100     log check_cpp_condition "$@"
1101     header=$1
1102     condition=$2
1103     shift 2
1104     check_cpp "$@" <<EOF
1105 #include <$header>
1106 #if !($condition)
1107 #error "unsatisfied condition: $condition"
1108 #endif
1109 EOF
1110 }
1111
1112 check_lib(){
1113     log check_lib "$@"
1114     header="$1"
1115     func="$2"
1116     shift 2
1117     check_header $header && check_func $func "$@" && add_extralibs "$@"
1118 }
1119
1120 check_lib2(){
1121     log check_lib2 "$@"
1122     headers="$1"
1123     funcs="$2"
1124     shift 2
1125     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1126 }
1127
1128 check_lib_cpp(){
1129     log check_lib_cpp "$@"
1130     headers="$1"
1131     classes="$2"
1132     shift 2
1133     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1134 }
1135
1136 check_pkg_config(){
1137     log check_pkg_config "$@"
1138     pkgandversion="$1"
1139     pkg="${1%% *}"
1140     headers="$2"
1141     funcs="$3"
1142     shift 3
1143     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1144     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1145     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1146     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1147         set_safe "${pkg}_cflags" $pkg_cflags   &&
1148         set_safe "${pkg}_libs"   $pkg_libs
1149 }
1150
1151 check_exec(){
1152     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1153 }
1154
1155 check_exec_crash(){
1156     code=$(cat)
1157
1158     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1159     # are safe but may not be available everywhere.  Thus we use
1160     # raise(SIGTERM) instead.  The check is run in a subshell so we
1161     # can redirect the "Terminated" message from the shell.  SIGBUS
1162     # is not defined by standard C so it is used conditionally.
1163
1164     (check_exec "$@") >> $logfile 2>&1 <<EOF
1165 #include <signal.h>
1166 static void sighandler(int sig){
1167     raise(SIGTERM);
1168 }
1169 int foo(void){
1170     $code
1171 }
1172 int (*func_ptr)(void) = foo;
1173 int main(void){
1174     signal(SIGILL, sighandler);
1175     signal(SIGFPE, sighandler);
1176     signal(SIGSEGV, sighandler);
1177 #ifdef SIGBUS
1178     signal(SIGBUS, sighandler);
1179 #endif
1180     return func_ptr();
1181 }
1182 EOF
1183 }
1184
1185 check_type(){
1186     log check_type "$@"
1187     headers=$1
1188     type=$2
1189     shift 2
1190     disable_safe "$type"
1191     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1192 }
1193
1194 check_struct(){
1195     log check_struct "$@"
1196     headers=$1
1197     struct=$2
1198     member=$3
1199     shift 3
1200     disable_safe "${struct}_${member}"
1201     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1202         enable_safe "${struct}_${member}"
1203 }
1204
1205 check_builtin(){
1206     log check_builtin "$@"
1207     name=$1
1208     headers=$2
1209     builtin=$3
1210     shift 3
1211     disable "$name"
1212     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1213 }
1214
1215 check_compile_assert(){
1216     log check_compile_assert "$@"
1217     name=$1
1218     headers=$2
1219     condition=$3
1220     shift 3
1221     disable "$name"
1222     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1223 }
1224
1225 require(){
1226     name="$1"
1227     header="$2"
1228     func="$3"
1229     shift 3
1230     check_lib $header $func "$@" || die "ERROR: $name not found"
1231 }
1232
1233 require2(){
1234     name="$1"
1235     headers="$2"
1236     func="$3"
1237     shift 3
1238     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1239 }
1240
1241 require_cpp(){
1242     name="$1"
1243     headers="$2"
1244     classes="$3"
1245     shift 3
1246     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1247 }
1248
1249 use_pkg_config(){
1250     pkg="$1"
1251     check_pkg_config "$@" || return 1
1252     add_cflags    $(get_safe "${pkg}_cflags")
1253     add_extralibs $(get_safe "${pkg}_libs")
1254 }
1255
1256 require_pkg_config(){
1257     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1258 }
1259
1260 require_libfreetype(){
1261     log require_libfreetype "$@"
1262     pkg="freetype2"
1263     check_cmd $pkg_config --exists --print-errors $pkg \
1264       || die "ERROR: $pkg not found"
1265     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1266     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1267     {
1268         echo "#include <ft2build.h>"
1269         echo "#include FT_FREETYPE_H"
1270         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1271         echo "int main(void) { return 0; }"
1272     } | check_ld "cc" $pkg_cflags $pkg_libs \
1273       && set_safe "${pkg}_cflags" $pkg_cflags \
1274       && set_safe "${pkg}_libs"   $pkg_libs \
1275       || die "ERROR: $pkg not found"
1276     add_cflags    $(get_safe "${pkg}_cflags")
1277     add_extralibs $(get_safe "${pkg}_libs")
1278 }
1279
1280 hostcc_e(){
1281     eval printf '%s\\n' $HOSTCC_E
1282 }
1283
1284 hostcc_o(){
1285     eval printf '%s\\n' $HOSTCC_O
1286 }
1287
1288 check_host_cc(){
1289     log check_host_cc "$@"
1290     cat > $TMPC
1291     log_file $TMPC
1292     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1293 }
1294
1295 check_host_cpp(){
1296     log check_host_cpp "$@"
1297     cat > $TMPC
1298     log_file $TMPC
1299     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1300 }
1301
1302 check_host_cppflags(){
1303     log check_host_cppflags "$@"
1304     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1305 int x;
1306 EOF
1307 }
1308
1309 check_host_cflags(){
1310     log check_host_cflags "$@"
1311     set -- $($host_cflags_filter "$@")
1312     check_host_cc "$@" <<EOF && append host_cflags "$@"
1313 int x;
1314 EOF
1315 }
1316
1317 check_host_cpp_condition(){
1318     log check_host_cpp_condition "$@"
1319     header=$1
1320     condition=$2
1321     shift 2
1322     check_host_cpp "$@" <<EOF
1323 #include <$header>
1324 #if !($condition)
1325 #error "unsatisfied condition: $condition"
1326 #endif
1327 EOF
1328 }
1329
1330 cp_if_changed(){
1331     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1332     mkdir -p "$(dirname $2)"
1333     $cp_f "$1" "$2"
1334 }
1335
1336 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1337 # system-dependent things.
1338
1339 AVCODEC_COMPONENTS="
1340     bsfs
1341     decoders
1342     encoders
1343     hwaccels
1344     parsers
1345 "
1346
1347 AVDEVICE_COMPONENTS="
1348     indevs
1349     outdevs
1350 "
1351 AVFILTER_COMPONENTS="
1352     filters
1353 "
1354 AVFORMAT_COMPONENTS="
1355     demuxers
1356     muxers
1357     protocols
1358 "
1359
1360 AVRESAMPLE_COMPONENTS=""
1361 AVUTIL_COMPONENTS=""
1362
1363 COMPONENT_LIST="
1364     $AVCODEC_COMPONENTS
1365     $AVDEVICE_COMPONENTS
1366     $AVFILTER_COMPONENTS
1367     $AVFORMAT_COMPONENTS
1368     $AVRESAMPLE_COMPONENTS
1369     $AVUTIL_COMPONENTS
1370 "
1371
1372 EXAMPLE_LIST="
1373     avio_reading_example
1374     avio_dir_cmd_example
1375     decoding_encoding_example
1376     demuxing_decoding_example
1377     extract_mvs_example
1378     filter_audio_example
1379     filtering_audio_example
1380     filtering_video_example
1381     metadata_example
1382     muxing_example
1383     qsvdec_example
1384     remuxing_example
1385     resampling_audio_example
1386     scaling_video_example
1387     transcode_aac_example
1388     transcoding_example
1389 "
1390
1391 EXTERNAL_LIBRARY_LIST="
1392     avisynth
1393     bzlib
1394     chromaprint
1395     crystalhd
1396     decklink
1397     frei0r
1398     gnutls
1399     iconv
1400     ladspa
1401     libaacplus
1402     libass
1403     libbluray
1404     libbs2b
1405     libcaca
1406     libcdio
1407     libcelt
1408     libdc1394
1409     libdcadec
1410     libfaac
1411     libfdk_aac
1412     libflite
1413     libfontconfig
1414     libfreetype
1415     libfribidi
1416     libgme
1417     libgsm
1418     libiec61883
1419     libilbc
1420     libkvazaar
1421     libmfx
1422     libmodplug
1423     libmp3lame
1424     libnut
1425     libopencore_amrnb
1426     libopencore_amrwb
1427     libopencv
1428     libopenh264
1429     libopenjpeg
1430     libopus
1431     libpulse
1432     libquvi
1433     librtmp
1434     librubberband
1435     libschroedinger
1436     libshine
1437     libsmbclient
1438     libsnappy
1439     libsoxr
1440     libspeex
1441     libssh
1442     libstagefright_h264
1443     libtesseract
1444     libtheora
1445     libtwolame
1446     libutvideo
1447     libv4l2
1448     libvidstab
1449     libvo_aacenc
1450     libvo_amrwbenc
1451     libvorbis
1452     libvpx
1453     libwavpack
1454     libwebp
1455     libx264
1456     libx265
1457     libxavs
1458     libxcb
1459     libxcb_shm
1460     libxcb_shape
1461     libxcb_xfixes
1462     libxvid
1463     libzimg
1464     libzmq
1465     libzvbi
1466     lzma
1467     mmal
1468     nvenc
1469     openal
1470     opencl
1471     opengl
1472     openssl
1473     schannel
1474     sdl
1475     securetransport
1476     x11grab
1477     xlib
1478     zlib
1479 "
1480
1481 DOCUMENT_LIST="
1482     doc
1483     htmlpages
1484     manpages
1485     podpages
1486     txtpages
1487 "
1488
1489 FEATURE_LIST="
1490     ftrapv
1491     gray
1492     hardcoded_tables
1493     runtime_cpudetect
1494     safe_bitstream_reader
1495     shared
1496     small
1497     static
1498     swscale_alpha
1499 "
1500
1501 HWACCEL_LIST="
1502     d3d11va
1503     dxva2
1504     vaapi
1505     vda
1506     vdpau
1507     videotoolbox
1508     xvmc
1509 "
1510
1511 LIBRARY_LIST="
1512     avcodec
1513     avdevice
1514     avfilter
1515     avformat
1516     avresample
1517     avutil
1518     postproc
1519     swresample
1520     swscale
1521 "
1522
1523 LICENSE_LIST="
1524     gpl
1525     nonfree
1526     version3
1527 "
1528
1529 PROGRAM_LIST="
1530     ffplay
1531     ffprobe
1532     ffserver
1533     ffmpeg
1534 "
1535
1536 SUBSYSTEM_LIST="
1537     dct
1538     dwt
1539     error_resilience
1540     faan
1541     fast_unaligned
1542     fft
1543     lsp
1544     lzo
1545     mdct
1546     pixelutils
1547     network
1548     rdft
1549 "
1550
1551 CONFIG_LIST="
1552     $COMPONENT_LIST
1553     $DOCUMENT_LIST
1554     $EXAMPLE_LIST
1555     $EXTERNAL_LIBRARY_LIST
1556     $FEATURE_LIST
1557     $HWACCEL_LIST
1558     $LICENSE_LIST
1559     $LIBRARY_LIST
1560     $PROGRAM_LIST
1561     $SUBSYSTEM_LIST
1562     fontconfig
1563     incompatible_libav_abi
1564     memalign_hack
1565     memory_poisoning
1566     neon_clobber_test
1567     pic
1568     pod2man
1569     raise_major
1570     thumb
1571     valgrind_backtrace
1572     xmm_clobber_test
1573 "
1574
1575 THREADS_LIST="
1576     pthreads
1577     os2threads
1578     w32threads
1579 "
1580
1581 ATOMICS_LIST="
1582     atomics_gcc
1583     atomics_suncc
1584     atomics_win32
1585 "
1586
1587 ARCH_LIST="
1588     aarch64
1589     alpha
1590     arm
1591     avr32
1592     avr32_ap
1593     avr32_uc
1594     bfin
1595     ia64
1596     m68k
1597     mips
1598     mips64
1599     parisc
1600     ppc
1601     ppc64
1602     s390
1603     sh4
1604     sparc
1605     sparc64
1606     tilegx
1607     tilepro
1608     tomi
1609     x86
1610     x86_32
1611     x86_64
1612 "
1613
1614 ARCH_EXT_LIST_ARM="
1615     armv5te
1616     armv6
1617     armv6t2
1618     armv8
1619     neon
1620     vfp
1621     vfpv3
1622     setend
1623 "
1624
1625 ARCH_EXT_LIST_MIPS="
1626     mipsfpu
1627     mips32r2
1628     mips32r5
1629     mips64r6
1630     mipsdspr1
1631     mipsdspr2
1632     msa
1633 "
1634
1635 ARCH_EXT_LIST_LOONGSON="
1636     loongson2
1637     loongson3
1638     mmi
1639 "
1640
1641 ARCH_EXT_LIST_X86_SIMD="
1642     aesni
1643     amd3dnow
1644     amd3dnowext
1645     avx
1646     avx2
1647     fma3
1648     fma4
1649     mmx
1650     mmxext
1651     sse
1652     sse2
1653     sse3
1654     sse4
1655     sse42
1656     ssse3
1657     xop
1658 "
1659
1660 ARCH_EXT_LIST_PPC="
1661     altivec
1662     dcbzl
1663     ldbrx
1664     power8
1665     ppc4xx
1666     vsx
1667 "
1668
1669 ARCH_EXT_LIST_X86="
1670     $ARCH_EXT_LIST_X86_SIMD
1671     cpunop
1672     i686
1673 "
1674
1675 ARCH_EXT_LIST="
1676     $ARCH_EXT_LIST_ARM
1677     $ARCH_EXT_LIST_PPC
1678     $ARCH_EXT_LIST_X86
1679     $ARCH_EXT_LIST_MIPS
1680     $ARCH_EXT_LIST_LOONGSON
1681 "
1682
1683 ARCH_FEATURES="
1684     aligned_stack
1685     fast_64bit
1686     fast_clz
1687     fast_cmov
1688     local_aligned_8
1689     local_aligned_16
1690     local_aligned_32
1691     simd_align_16
1692 "
1693
1694 BUILTIN_LIST="
1695     atomic_cas_ptr
1696     atomic_compare_exchange
1697     machine_rw_barrier
1698     MemoryBarrier
1699     mm_empty
1700     rdtsc
1701     sarestart
1702     sync_val_compare_and_swap
1703 "
1704 HAVE_LIST_CMDLINE="
1705     inline_asm
1706     symver
1707     yasm
1708 "
1709
1710 HAVE_LIST_PUB="
1711     bigendian
1712     fast_unaligned
1713     incompatible_libav_abi
1714 "
1715
1716 HEADERS_LIST="
1717     alsa_asoundlib_h
1718     altivec_h
1719     arpa_inet_h
1720     asm_types_h
1721     cdio_paranoia_h
1722     cdio_paranoia_paranoia_h
1723     dev_bktr_ioctl_bt848_h
1724     dev_bktr_ioctl_meteor_h
1725     dev_ic_bt8xx_h
1726     dev_video_bktr_ioctl_bt848_h
1727     dev_video_meteor_ioctl_meteor_h
1728     direct_h
1729     dirent_h
1730     dlfcn_h
1731     d3d11_h
1732     dxva_h
1733     ES2_gl_h
1734     gsm_h
1735     io_h
1736     mach_mach_time_h
1737     machine_ioctl_bt848_h
1738     machine_ioctl_meteor_h
1739     malloc_h
1740     openjpeg_1_5_openjpeg_h
1741     OpenGL_gl3_h
1742     poll_h
1743     sndio_h
1744     soundcard_h
1745     sys_mman_h
1746     sys_param_h
1747     sys_resource_h
1748     sys_select_h
1749     sys_soundcard_h
1750     sys_time_h
1751     sys_un_h
1752     sys_videoio_h
1753     termios_h
1754     udplite_h
1755     unistd_h
1756     valgrind_valgrind_h
1757     windows_h
1758     winsock2_h
1759 "
1760
1761 INTRINSICS_LIST="
1762     intrinsics_neon
1763 "
1764
1765 MATH_FUNCS="
1766     atanf
1767     atan2f
1768     cbrt
1769     cbrtf
1770     copysign
1771     cosf
1772     erf
1773     exp2
1774     exp2f
1775     expf
1776     hypot
1777     isinf
1778     isnan
1779     ldexpf
1780     llrint
1781     llrintf
1782     log2
1783     log2f
1784     log10f
1785     lrint
1786     lrintf
1787     powf
1788     rint
1789     round
1790     roundf
1791     sinf
1792     trunc
1793     truncf
1794 "
1795
1796 SYSTEM_FUNCS="
1797     access
1798     aligned_malloc
1799     clock_gettime
1800     closesocket
1801     CommandLineToArgvW
1802     CoTaskMemFree
1803     CryptGenRandom
1804     dlopen
1805     fcntl
1806     flt_lim
1807     fork
1808     getaddrinfo
1809     gethrtime
1810     getopt
1811     GetProcessAffinityMask
1812     GetProcessMemoryInfo
1813     GetProcessTimes
1814     getrusage
1815     GetSystemTimeAsFileTime
1816     gettimeofday
1817     glob
1818     glXGetProcAddress
1819     gmtime_r
1820     inet_aton
1821     isatty
1822     jack_port_get_latency_range
1823     kbhit
1824     localtime_r
1825     lstat
1826     lzo1x_999_compress
1827     mach_absolute_time
1828     MapViewOfFile
1829     memalign
1830     mkstemp
1831     mmap
1832     mprotect
1833     nanosleep
1834     PeekNamedPipe
1835     posix_memalign
1836     pthread_cancel
1837     sched_getaffinity
1838     SetConsoleTextAttribute
1839     SetConsoleCtrlHandler
1840     setmode
1841     setrlimit
1842     Sleep
1843     strerror_r
1844     sysconf
1845     sysctl
1846     usleep
1847     UTGetOSTypeFromString
1848     VirtualAlloc
1849     wglGetProcAddress
1850 "
1851
1852 TOOLCHAIN_FEATURES="
1853     as_dn_directive
1854     as_func
1855     as_object_arch
1856     asm_mod_q
1857     attribute_may_alias
1858     attribute_packed
1859     ebp_available
1860     ebx_available
1861     gnu_as
1862     gnu_windres
1863     ibm_asm
1864     inline_asm_labels
1865     inline_asm_nonlocal_labels
1866     inline_asm_direct_symbol_refs
1867     pragma_deprecated
1868     rsync_contimeout
1869     symver_asm_label
1870     symver_gnu_asm
1871     vfp_args
1872     xform_asm
1873     xmm_clobbers
1874 "
1875
1876 TYPES_LIST="
1877     CONDITION_VARIABLE_Ptr
1878     socklen_t
1879     struct_addrinfo
1880     struct_dcadec_exss_info_matrix_encoding
1881     struct_group_source_req
1882     struct_ip_mreq_source
1883     struct_ipv6_mreq
1884     struct_pollfd
1885     struct_rusage_ru_maxrss
1886     struct_sctp_event_subscribe
1887     struct_sockaddr_in6
1888     struct_sockaddr_sa_len
1889     struct_sockaddr_storage
1890     struct_stat_st_mtim_tv_nsec
1891     struct_v4l2_frmivalenum_discrete
1892 "
1893
1894 HAVE_LIST="
1895     $ARCH_EXT_LIST
1896     $(add_suffix _external $ARCH_EXT_LIST)
1897     $(add_suffix _inline   $ARCH_EXT_LIST)
1898     $ARCH_FEATURES
1899     $ATOMICS_LIST
1900     $BUILTIN_LIST
1901     $HAVE_LIST_CMDLINE
1902     $HAVE_LIST_PUB
1903     $HEADERS_LIST
1904     $INTRINSICS_LIST
1905     $MATH_FUNCS
1906     $SYSTEM_FUNCS
1907     $THREADS_LIST
1908     $TOOLCHAIN_FEATURES
1909     $TYPES_LIST
1910     atomics_native
1911     dos_paths
1912     dxva2api_cobj
1913     dxva2_lib
1914     winrt
1915     libc_msvcrt
1916     libdc1394_1
1917     libdc1394_2
1918     makeinfo
1919     makeinfo_html
1920     perl
1921     pod2man
1922     sdl
1923     section_data_rel_ro
1924     texi2html
1925     threads
1926     vaapi_x11
1927     vdpau_x11
1928     xlib
1929 "
1930
1931 # options emitted with CONFIG_ prefix but not available on the command line
1932 CONFIG_EXTRA="
1933     aandcttables
1934     ac3dsp
1935     audio_frame_queue
1936     audiodsp
1937     blockdsp
1938     bswapdsp
1939     cabac
1940     dvprofile
1941     exif
1942     faandct
1943     faanidct
1944     fdctdsp
1945     flacdsp
1946     fmtconvert
1947     frame_thread_encoder
1948     g722dsp
1949     gcrypt
1950     gmp
1951     golomb
1952     gplv3
1953     h263dsp
1954     h264chroma
1955     h264dsp
1956     h264pred
1957     h264qpel
1958     hpeldsp
1959     huffman
1960     huffyuvdsp
1961     huffyuvencdsp
1962     idctdsp
1963     iirfilter
1964     imdct15
1965     intrax8
1966     ividsp
1967     jpegtables
1968     libx262
1969     lgplv3
1970     llauddsp
1971     llviddsp
1972     lpc
1973     lzf
1974     me_cmp
1975     mpeg_er
1976     mpegaudio
1977     mpegaudiodsp
1978     mpegvideo
1979     mpegvideoenc
1980     mss34dsp
1981     pixblockdsp
1982     qpeldsp
1983     qsv
1984     qsvdec
1985     qsvenc
1986     rangecoder
1987     riffdec
1988     riffenc
1989     rtpdec
1990     rtpenc_chain
1991     rv34dsp
1992     sinewin
1993     snappy
1994     startcode
1995     texturedsp
1996     texturedspenc
1997     tpeldsp
1998     videodsp
1999     vp3dsp
2000     vp56dsp
2001     vp8dsp
2002     wma_freqs
2003     wmv2dsp
2004 "
2005
2006 CMDLINE_SELECT="
2007     $ARCH_EXT_LIST
2008     $CONFIG_LIST
2009     $HAVE_LIST_CMDLINE
2010     $THREADS_LIST
2011     asm
2012     cross_compile
2013     debug
2014     extra_warnings
2015     logging
2016     lto
2017     optimizations
2018     rpath
2019     stripping
2020 "
2021
2022 PATHS_LIST="
2023     bindir
2024     datadir
2025     docdir
2026     incdir
2027     libdir
2028     mandir
2029     pkgconfigdir
2030     prefix
2031     shlibdir
2032 "
2033
2034 CMDLINE_SET="
2035     $PATHS_LIST
2036     ar
2037     arch
2038     as
2039     assert_level
2040     build_suffix
2041     cc
2042     cpu
2043     cross_prefix
2044     custom_allocator
2045     cxx
2046     dep_cc
2047     doxygen
2048     env
2049     extra_version
2050     gas
2051     host_cc
2052     host_cflags
2053     host_ld
2054     host_ldflags
2055     host_libs
2056     host_os
2057     install
2058     ld
2059     logfile
2060     malloc_prefix
2061     nm
2062     optflags
2063     pkg_config
2064     pkg_config_flags
2065     progs_suffix
2066     random_seed
2067     ranlib
2068     samples
2069     strip
2070     sws_max_filter_size
2071     sysinclude
2072     sysroot
2073     target_exec
2074     target_os
2075     target_path
2076     target_samples
2077     tempprefix
2078     toolchain
2079     valgrind
2080     yasmexe
2081 "
2082
2083 CMDLINE_APPEND="
2084     extra_cflags
2085     extra_cxxflags
2086     host_cppflags
2087 "
2088
2089 # code dependency declarations
2090
2091 # architecture extensions
2092
2093 armv5te_deps="arm"
2094 armv6_deps="arm"
2095 armv6t2_deps="arm"
2096 armv8_deps="aarch64"
2097 neon_deps_any="aarch64 arm"
2098 intrinsics_neon_deps="neon"
2099 vfp_deps_any="aarch64 arm"
2100 vfpv3_deps="vfp"
2101 setend_deps="arm"
2102
2103 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2104
2105 mipsfpu_deps="mips"
2106 mipsdspr1_deps="mips"
2107 mipsdspr2_deps="mips"
2108 mips32r2_deps="mips"
2109 mips32r5_deps="mips"
2110 mips64r6_deps="mips"
2111 msa_deps="mips"
2112 mmi_deps="mips"
2113
2114 altivec_deps="ppc"
2115 dcbzl_deps="ppc"
2116 ldbrx_deps="ppc"
2117 ppc4xx_deps="ppc"
2118 vsx_deps="altivec"
2119 power8_deps="vsx"
2120
2121 cpunop_deps="i686"
2122 x86_64_select="i686"
2123 x86_64_suggest="fast_cmov"
2124
2125 amd3dnow_deps="mmx"
2126 amd3dnowext_deps="amd3dnow"
2127 i686_deps="x86"
2128 mmx_deps="x86"
2129 mmxext_deps="mmx"
2130 sse_deps="mmxext"
2131 sse2_deps="sse"
2132 sse3_deps="sse2"
2133 ssse3_deps="sse3"
2134 sse4_deps="ssse3"
2135 sse42_deps="sse4"
2136 aesni_deps="sse42"
2137 avx_deps="sse42"
2138 xop_deps="avx"
2139 fma3_deps="avx"
2140 fma4_deps="avx"
2141 avx2_deps="avx"
2142
2143 mmx_external_deps="yasm"
2144 mmx_inline_deps="inline_asm"
2145 mmx_suggest="mmx_external mmx_inline"
2146
2147 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2148     eval dep=\$${ext}_deps
2149     eval ${ext}_external_deps='"${dep}_external"'
2150     eval ${ext}_inline_deps='"${dep}_inline"'
2151     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2152 done
2153
2154 aligned_stack_if_any="aarch64 ppc x86"
2155 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2156 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2157 fast_unaligned_if_any="aarch64 ppc x86"
2158 simd_align_16_if_any="altivec neon sse"
2159
2160 # system capabilities
2161 symver_if_any="symver_asm_label symver_gnu_asm"
2162 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2163
2164 # threading support
2165 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2166 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2167 atomics_win32_if="MemoryBarrier"
2168 atomics_native_if_any="$ATOMICS_LIST"
2169 w32threads_deps="atomics_native"
2170 threads_if_any="$THREADS_LIST"
2171
2172 # subsystems
2173 dct_select="rdft"
2174 error_resilience_select="me_cmp"
2175 faandct_deps="faan fdctdsp"
2176 faanidct_deps="faan idctdsp"
2177 frame_thread_encoder_deps="encoders threads"
2178 intrax8_select="error_resilience"
2179 mdct_select="fft"
2180 rdft_select="fft"
2181 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2182 mpeg_er_select="error_resilience"
2183 mpegaudio_select="mpegaudiodsp"
2184 mpegaudiodsp_select="dct"
2185 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2186 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2187 qsvdec_select="qsv"
2188 qsvenc_select="qsv"
2189
2190 # decoders / encoders
2191 aac_decoder_select="imdct15 mdct sinewin"
2192 aac_fixed_decoder_select="mdct sinewin"
2193 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2194 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2195 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2196 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2197 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2198 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2199 adpcm_g722_decoder_select="g722dsp"
2200 adpcm_g722_encoder_select="g722dsp"
2201 aic_decoder_select="golomb idctdsp"
2202 alac_encoder_select="lpc"
2203 als_decoder_select="bswapdsp"
2204 amrnb_decoder_select="lsp"
2205 amrwb_decoder_select="lsp"
2206 amv_decoder_select="sp5x_decoder exif"
2207 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2208 ape_decoder_select="bswapdsp llauddsp"
2209 apng_decoder_select="zlib"
2210 apng_encoder_select="huffyuvencdsp zlib"
2211 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2212 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2213 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2214 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2215 atrac1_decoder_select="mdct sinewin"
2216 atrac3_decoder_select="mdct"
2217 atrac3p_decoder_select="mdct sinewin"
2218 avrn_decoder_select="exif jpegtables"
2219 bink_decoder_select="blockdsp hpeldsp"
2220 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2221 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2222 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2223 cllc_decoder_select="bswapdsp"
2224 comfortnoise_encoder_select="lpc"
2225 cook_decoder_select="audiodsp mdct sinewin"
2226 cscd_decoder_select="lzo"
2227 cscd_decoder_suggest="zlib"
2228 dca_decoder_select="fmtconvert mdct"
2229 dds_decoder_select="texturedsp"
2230 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2231 dnxhd_decoder_select="blockdsp idctdsp"
2232 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2233 dvvideo_decoder_select="dvprofile idctdsp"
2234 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2235 dxa_decoder_select="zlib"
2236 dxv_decoder_select="lzf texturedsp"
2237 eac3_decoder_select="ac3_decoder"
2238 eac3_encoder_select="ac3_encoder"
2239 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2240 eatgq_decoder_select="aandcttables"
2241 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2242 exr_decoder_select="zlib"
2243 ffv1_decoder_select="golomb rangecoder"
2244 ffv1_encoder_select="rangecoder"
2245 ffvhuff_decoder_select="huffyuv_decoder"
2246 ffvhuff_encoder_select="huffyuv_encoder"
2247 fic_decoder_select="golomb"
2248 flac_decoder_select="flacdsp golomb"
2249 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2250 flashsv_decoder_select="zlib"
2251 flashsv_encoder_select="zlib"
2252 flashsv2_encoder_select="zlib"
2253 flashsv2_decoder_select="zlib"
2254 flv_decoder_select="h263_decoder"
2255 flv_encoder_select="h263_encoder"
2256 fourxm_decoder_select="blockdsp bswapdsp"
2257 fraps_decoder_select="bswapdsp huffman"
2258 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2259 g729_decoder_select="audiodsp"
2260 h261_decoder_select="mpegvideo"
2261 h261_encoder_select="aandcttables mpegvideoenc"
2262 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2263 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2264 h263i_decoder_select="h263_decoder"
2265 h263p_decoder_select="h263_decoder"
2266 h263p_encoder_select="h263_encoder"
2267 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2268 h264_decoder_suggest="error_resilience"
2269 h264_qsv_decoder_deps="libmfx"
2270 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2271 h264_qsv_encoder_deps="libmfx"
2272 h264_qsv_encoder_select="qsvenc"
2273 hap_decoder_select="snappy texturedsp"
2274 hap_encoder_deps="libsnappy"
2275 hap_encoder_select="texturedspenc"
2276 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2277 hevc_qsv_encoder_deps="libmfx"
2278 hevc_qsv_decoder_deps="libmfx"
2279 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2280 hevc_qsv_encoder_select="qsvenc"
2281 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2282 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2283 iac_decoder_select="imc_decoder"
2284 imc_decoder_select="bswapdsp fft mdct sinewin"
2285 indeo3_decoder_select="hpeldsp"
2286 indeo4_decoder_select="ividsp"
2287 indeo5_decoder_select="ividsp"
2288 interplay_video_decoder_select="hpeldsp"
2289 jpegls_decoder_select="golomb mjpeg_decoder"
2290 jpegls_encoder_select="golomb"
2291 jv_decoder_select="blockdsp"
2292 lagarith_decoder_select="huffyuvdsp"
2293 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2294 loco_decoder_select="golomb"
2295 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2296 metasound_decoder_select="lsp mdct sinewin"
2297 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2298 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2299 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2300 mjpegb_decoder_select="mjpeg_decoder"
2301 mlp_decoder_select="mlp_parser"
2302 motionpixels_decoder_select="bswapdsp"
2303 mp1_decoder_select="mpegaudio"
2304 mp1float_decoder_select="mpegaudio"
2305 mp2_decoder_select="mpegaudio"
2306 mp2float_decoder_select="mpegaudio"
2307 mp3_decoder_select="mpegaudio"
2308 mp3adu_decoder_select="mpegaudio"
2309 mp3adufloat_decoder_select="mpegaudio"
2310 mp3float_decoder_select="mpegaudio"
2311 mp3on4_decoder_select="mpegaudio"
2312 mp3on4float_decoder_select="mpegaudio"
2313 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2314 mpc8_decoder_select="mpegaudiodsp"
2315 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2316 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2317 mpegvideo_decoder_select="mpegvideo"
2318 mpeg1video_decoder_select="mpegvideo"
2319 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2320 mpeg2video_decoder_select="mpegvideo"
2321 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2322 mpeg2_qsv_decoder_deps="libmfx"
2323 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2324 mpeg2_qsv_encoder_deps="libmfx"
2325 mpeg2_qsv_encoder_select="qsvenc"
2326 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2327 mpeg4_encoder_select="h263_encoder"
2328 msa1_decoder_select="mss34dsp"
2329 msmpeg4v1_decoder_select="h263_decoder"
2330 msmpeg4v2_decoder_select="h263_decoder"
2331 msmpeg4v2_encoder_select="h263_encoder"
2332 msmpeg4v3_decoder_select="h263_decoder"
2333 msmpeg4v3_encoder_select="h263_encoder"
2334 mss2_decoder_select="vc1_decoder"
2335 mts2_decoder_select="mss34dsp"
2336 mxpeg_decoder_select="mjpeg_decoder"
2337 nellymoser_decoder_select="mdct sinewin"
2338 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2339 nuv_decoder_select="idctdsp lzo"
2340 on2avc_decoder_select="mdct"
2341 opus_decoder_deps="swresample"
2342 opus_decoder_select="imdct15"
2343 png_decoder_select="zlib"
2344 png_encoder_select="huffyuvencdsp zlib"
2345 prores_decoder_select="blockdsp idctdsp"
2346 prores_encoder_select="fdctdsp"
2347 qcelp_decoder_select="lsp"
2348 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2349 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2350 ra_144_decoder_select="audiodsp"
2351 ralf_decoder_select="golomb"
2352 rawvideo_decoder_select="bswapdsp"
2353 rscc_decoder_select="zlib"
2354 rtjpeg_decoder_select="me_cmp"
2355 rv10_decoder_select="h263_decoder"
2356 rv10_encoder_select="h263_encoder"
2357 rv20_decoder_select="h263_decoder"
2358 rv20_encoder_select="h263_encoder"
2359 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2360 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2361 screenpresso_decoder_select="zlib"
2362 shorten_decoder_select="golomb"
2363 sipr_decoder_select="lsp"
2364 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2365 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2366 sonic_decoder_select="golomb rangecoder"
2367 sonic_encoder_select="golomb rangecoder"
2368 sonic_ls_encoder_select="golomb rangecoder"
2369 sp5x_decoder_select="mjpeg_decoder"
2370 svq1_decoder_select="hpeldsp"
2371 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2372 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2373 svq3_decoder_suggest="zlib"
2374 tak_decoder_select="audiodsp"
2375 tdsc_decoder_select="zlib mjpeg_decoder"
2376 theora_decoder_select="vp3_decoder"
2377 thp_decoder_select="mjpeg_decoder"
2378 tiff_decoder_suggest="zlib lzma"
2379 tiff_encoder_suggest="zlib"
2380 truehd_decoder_select="mlp_parser"
2381 truemotion2_decoder_select="bswapdsp"
2382 truespeech_decoder_select="bswapdsp"
2383 tscc_decoder_select="zlib"
2384 twinvq_decoder_select="mdct lsp sinewin"
2385 txd_decoder_select="texturedsp"
2386 utvideo_decoder_select="bswapdsp"
2387 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2388 vble_decoder_select="huffyuvdsp"
2389 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2390 vc1image_decoder_select="vc1_decoder"
2391 vc1_qsv_decoder_deps="libmfx"
2392 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2393 vorbis_decoder_select="mdct"
2394 vorbis_encoder_select="mdct"
2395 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2396 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2397 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2398 vp6a_decoder_select="vp6_decoder"
2399 vp6f_decoder_select="vp6_decoder"
2400 vp7_decoder_select="h264pred videodsp vp8dsp"
2401 vp8_decoder_select="h264pred videodsp vp8dsp"
2402 vp9_decoder_select="videodsp vp9_parser"
2403 webp_decoder_select="vp8_decoder"
2404 wmalossless_decoder_select="llauddsp"
2405 wmapro_decoder_select="mdct sinewin wma_freqs"
2406 wmav1_decoder_select="mdct sinewin wma_freqs"
2407 wmav1_encoder_select="mdct sinewin wma_freqs"
2408 wmav2_decoder_select="mdct sinewin wma_freqs"
2409 wmav2_encoder_select="mdct sinewin wma_freqs"
2410 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2411 wmv1_decoder_select="h263_decoder"
2412 wmv1_encoder_select="h263_encoder"
2413 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2414 wmv2_encoder_select="h263_encoder wmv2dsp"
2415 wmv3_decoder_select="vc1_decoder"
2416 wmv3image_decoder_select="wmv3_decoder"
2417 zerocodec_decoder_select="zlib"
2418 zlib_decoder_select="zlib"
2419 zlib_encoder_select="zlib"
2420 zmbv_decoder_select="zlib"
2421 zmbv_encoder_select="zlib"
2422
2423 # hardware accelerators
2424 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2425 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2426 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2427 vaapi_deps="va_va_h"
2428 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2429 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2430 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2431 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2432 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2433 xvmc_deps="X11_extensions_XvMClib_h"
2434
2435 h263_vaapi_hwaccel_deps="vaapi"
2436 h263_vaapi_hwaccel_select="h263_decoder"
2437 h263_videotoolbox_hwaccel_deps="videotoolbox"
2438 h263_videotoolbox_hwaccel_select="h263_decoder"
2439 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2440 h264_d3d11va_hwaccel_deps="d3d11va"
2441 h264_d3d11va_hwaccel_select="h264_decoder"
2442 h264_dxva2_hwaccel_deps="dxva2"
2443 h264_dxva2_hwaccel_select="h264_decoder"
2444 h264_mmal_decoder_deps="mmal"
2445 h264_mmal_hwaccel_deps="mmal"
2446 h264_mmal_decoder_select="h264_decoder"
2447 h264_mmal_encoder_deps="mmal"
2448 h264_qsv_hwaccel_deps="libmfx"
2449 h264_vaapi_hwaccel_deps="vaapi"
2450 h264_vaapi_hwaccel_select="h264_decoder"
2451 h264_vda_decoder_deps="vda"
2452 h264_vda_decoder_select="h264_decoder"
2453 h264_vda_hwaccel_deps="vda"
2454 h264_vda_hwaccel_select="h264_decoder"
2455 h264_vda_old_hwaccel_deps="vda"
2456 h264_vda_old_hwaccel_select="h264_decoder"
2457 h264_vdpau_decoder_deps="vdpau"
2458 h264_vdpau_decoder_select="h264_decoder"
2459 h264_vdpau_hwaccel_deps="vdpau"
2460 h264_vdpau_hwaccel_select="h264_decoder"
2461 h264_videotoolbox_hwaccel_deps="videotoolbox"
2462 h264_videotoolbox_hwaccel_select="h264_decoder"
2463 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2464 hevc_d3d11va_hwaccel_select="hevc_decoder"
2465 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2466 hevc_dxva2_hwaccel_select="hevc_decoder"
2467 hevc_qsv_hwaccel_deps="libmfx"
2468 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2469 hevc_vaapi_hwaccel_select="hevc_decoder"
2470 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2471 hevc_vdpau_hwaccel_select="hevc_decoder"
2472 mpeg_vdpau_decoder_deps="vdpau"
2473 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2474 mpeg_xvmc_hwaccel_deps="xvmc"
2475 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2476 mpeg1_vdpau_decoder_deps="vdpau"
2477 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2478 mpeg1_vdpau_hwaccel_deps="vdpau"
2479 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2480 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2481 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2482 mpeg1_xvmc_hwaccel_deps="xvmc"
2483 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2484 mpeg2_crystalhd_decoder_select="crystalhd"
2485 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2486 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2487 mpeg2_dxva2_hwaccel_deps="dxva2"
2488 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2489 mpeg2_mmal_decoder_deps="mmal"
2490 mpeg2_mmal_hwaccel_deps="mmal"
2491 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2492 mpeg2_qsv_hwaccel_deps="libmfx"
2493 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2494 mpeg2_vaapi_hwaccel_deps="vaapi"
2495 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2496 mpeg2_vdpau_hwaccel_deps="vdpau"
2497 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2498 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2499 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2500 mpeg2_xvmc_hwaccel_deps="xvmc"
2501 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2502 mpeg4_crystalhd_decoder_select="crystalhd"
2503 mpeg4_vaapi_hwaccel_deps="vaapi"
2504 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2505 mpeg4_vdpau_decoder_deps="vdpau"
2506 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2507 mpeg4_vdpau_hwaccel_deps="vdpau"
2508 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2509 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2510 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2511 msmpeg4_crystalhd_decoder_select="crystalhd"
2512 vc1_crystalhd_decoder_select="crystalhd"
2513 vc1_d3d11va_hwaccel_deps="d3d11va"
2514 vc1_d3d11va_hwaccel_select="vc1_decoder"
2515 vc1_dxva2_hwaccel_deps="dxva2"
2516 vc1_dxva2_hwaccel_select="vc1_decoder"
2517 vc1_vaapi_hwaccel_deps="vaapi"
2518 vc1_vaapi_hwaccel_select="vc1_decoder"
2519 vc1_vdpau_decoder_deps="vdpau"
2520 vc1_vdpau_decoder_select="vc1_decoder"
2521 vc1_vdpau_hwaccel_deps="vdpau"
2522 vc1_vdpau_hwaccel_select="vc1_decoder"
2523 vc1_mmal_decoder_deps="mmal"
2524 vc1_mmal_hwaccel_deps="mmal"
2525 vc1_mmal_decoder_select="vc1_decoder"
2526 vc1_qsv_hwaccel_deps="libmfx"
2527 vc1_qsv_hwaccel_select="qsvdec_vc1"
2528 wmv3_crystalhd_decoder_select="crystalhd"
2529 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2530 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2531 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2532 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2533 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2534
2535 # parsers
2536 h264_parser_select="h264_decoder"
2537 hevc_parser_select="golomb"
2538 mpegvideo_parser_select="mpegvideo"
2539 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2540 vc1_parser_select="mpegvideo startcode vc1_decoder"
2541
2542 # bitstream_filters
2543 mjpeg2jpeg_bsf_select="jpegtables"
2544
2545 # external libraries
2546 chromaprint_muxer_deps="chromaprint"
2547 libaacplus_encoder_deps="libaacplus"
2548 libcelt_decoder_deps="libcelt"
2549 libdcadec_decoder_deps="libdcadec"
2550 libfaac_encoder_deps="libfaac"
2551 libfaac_encoder_select="audio_frame_queue"
2552 libfdk_aac_decoder_deps="libfdk_aac"
2553 libfdk_aac_encoder_deps="libfdk_aac"
2554 libfdk_aac_encoder_select="audio_frame_queue"
2555 libgme_demuxer_deps="libgme"
2556 libgsm_decoder_deps="libgsm"
2557 libgsm_encoder_deps="libgsm"
2558 libgsm_ms_decoder_deps="libgsm"
2559 libgsm_ms_encoder_deps="libgsm"
2560 libilbc_decoder_deps="libilbc"
2561 libilbc_encoder_deps="libilbc"
2562 libkvazaar_encoder_deps="libkvazaar"
2563 libmodplug_demuxer_deps="libmodplug"
2564 libmp3lame_encoder_deps="libmp3lame"
2565 libmp3lame_encoder_select="audio_frame_queue"
2566 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2567 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2568 libopencore_amrnb_encoder_select="audio_frame_queue"
2569 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2570 libopenh264_encoder_deps="libopenh264"
2571 libopenjpeg_decoder_deps="libopenjpeg"
2572 libopenjpeg_encoder_deps="libopenjpeg"
2573 libopus_decoder_deps="libopus"
2574 libopus_encoder_deps="libopus"
2575 libopus_encoder_select="audio_frame_queue"
2576 libquvi_demuxer_deps="libquvi"
2577 libschroedinger_decoder_deps="libschroedinger"
2578 libschroedinger_encoder_deps="libschroedinger"
2579 libshine_encoder_deps="libshine"
2580 libshine_encoder_select="audio_frame_queue"
2581 libspeex_decoder_deps="libspeex"
2582 libspeex_encoder_deps="libspeex"
2583 libspeex_encoder_select="audio_frame_queue"
2584 libstagefright_h264_decoder_deps="libstagefright_h264"
2585 libtheora_encoder_deps="libtheora"
2586 libtwolame_encoder_deps="libtwolame"
2587 libvo_aacenc_encoder_deps="libvo_aacenc"
2588 libvo_aacenc_encoder_select="audio_frame_queue"
2589 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2590 libvorbis_decoder_deps="libvorbis"
2591 libvorbis_encoder_deps="libvorbis"
2592 libvorbis_encoder_select="audio_frame_queue"
2593 libvpx_vp8_decoder_deps="libvpx"
2594 libvpx_vp8_encoder_deps="libvpx"
2595 libvpx_vp9_decoder_deps="libvpx"
2596 libvpx_vp9_encoder_deps="libvpx"
2597 libwavpack_encoder_deps="libwavpack"
2598 libwebp_encoder_deps="libwebp"
2599 libwebp_anim_encoder_deps="libwebp"
2600 libx262_encoder_deps="libx262"
2601 libx264_encoder_deps="libx264"
2602 libx264rgb_encoder_deps="libx264"
2603 libx264rgb_encoder_select="libx264_encoder"
2604 libx265_encoder_deps="libx265"
2605 libxavs_encoder_deps="libxavs"
2606 libxvid_encoder_deps="libxvid"
2607 libutvideo_decoder_deps="libutvideo"
2608 libutvideo_encoder_deps="libutvideo"
2609 libzvbi_teletext_decoder_deps="libzvbi"
2610 nvenc_encoder_deps="nvenc"
2611 nvenc_h264_encoder_deps="nvenc"
2612 nvenc_hevc_encoder_deps="nvenc"
2613
2614 # demuxers / muxers
2615 ac3_demuxer_select="ac3_parser"
2616 asf_demuxer_select="riffdec"
2617 asf_o_demuxer_select="riffdec"
2618 asf_muxer_select="riffenc"
2619 asf_stream_muxer_select="asf_muxer"
2620 avi_demuxer_select="riffdec exif"
2621 avi_muxer_select="riffenc"
2622 avisynth_demuxer_deps="avisynth"
2623 avisynth_demuxer_select="riffdec"
2624 caf_demuxer_select="riffdec"
2625 dash_muxer_select="mp4_muxer"
2626 dirac_demuxer_select="dirac_parser"
2627 dts_demuxer_select="dca_parser"
2628 dtshd_demuxer_select="dca_parser"
2629 dv_demuxer_select="dvprofile"
2630 dv_muxer_select="dvprofile"
2631 dxa_demuxer_select="riffdec"
2632 eac3_demuxer_select="ac3_parser"
2633 f4v_muxer_select="mov_muxer"
2634 flac_demuxer_select="flac_parser"
2635 hds_muxer_select="flv_muxer"
2636 hls_muxer_select="mpegts_muxer"
2637 image2_alias_pix_demuxer_select="image2_demuxer"
2638 image2_brender_pix_demuxer_select="image2_demuxer"
2639 ipod_muxer_select="mov_muxer"
2640 ismv_muxer_select="mov_muxer"
2641 libnut_demuxer_deps="libnut"
2642 libnut_muxer_deps="libnut"
2643 matroska_audio_muxer_select="matroska_muxer"
2644 matroska_demuxer_select="riffdec"
2645 matroska_demuxer_suggest="bzlib lzo zlib"
2646 matroska_muxer_select="riffenc"
2647 mmf_muxer_select="riffenc"
2648 mov_demuxer_select="riffdec"
2649 mov_demuxer_suggest="zlib"
2650 mov_muxer_select="riffenc rtpenc_chain"
2651 mp3_demuxer_select="mpegaudio_parser"
2652 mp4_muxer_select="mov_muxer"
2653 mpegts_muxer_select="adts_muxer latm_muxer"
2654 mpegtsraw_demuxer_select="mpegts_demuxer"
2655 mxf_d10_muxer_select="mxf_muxer"
2656 mxf_opatom_muxer_select="mxf_muxer"
2657 nut_muxer_select="riffenc"
2658 nuv_demuxer_select="riffdec"
2659 oga_muxer_select="ogg_muxer"
2660 ogg_demuxer_select="golomb"
2661 opus_muxer_select="ogg_muxer"
2662 psp_muxer_select="mov_muxer"
2663 rtp_demuxer_select="sdp_demuxer"
2664 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2665 rtsp_demuxer_select="http_protocol rtpdec"
2666 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2667 sap_demuxer_select="sdp_demuxer"
2668 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2669 sdp_demuxer_select="rtpdec"
2670 smoothstreaming_muxer_select="ismv_muxer"
2671 spdif_muxer_select="aac_parser"
2672 spx_muxer_select="ogg_muxer"
2673 tak_demuxer_select="tak_parser"
2674 tg2_muxer_select="mov_muxer"
2675 tgp_muxer_select="mov_muxer"
2676 vobsub_demuxer_select="mpegps_demuxer"
2677 w64_demuxer_select="wav_demuxer"
2678 w64_muxer_select="wav_muxer"
2679 wav_demuxer_select="riffdec"
2680 wav_muxer_select="riffenc"
2681 webm_muxer_select="riffenc"
2682 wtv_demuxer_select="riffdec"
2683 wtv_muxer_select="riffenc"
2684 xmv_demuxer_select="riffdec"
2685 xwma_demuxer_select="riffdec"
2686
2687 # indevs / outdevs
2688 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2689 alsa_outdev_deps="alsa_asoundlib_h"
2690 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2691 avfoundation_indev_select="avfoundation"
2692 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2693 caca_outdev_deps="libcaca"
2694 decklink_outdev_deps="decklink pthreads"
2695 decklink_outdev_extralibs="-lstdc++"
2696 decklink_indev_deps="decklink pthreads"
2697 decklink_indev_extralibs="-lstdc++"
2698 dshow_indev_deps="IBaseFilter"
2699 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2700 dv1394_indev_deps="dv1394"
2701 dv1394_indev_select="dv_demuxer"
2702 fbdev_indev_deps="linux_fb_h"
2703 fbdev_outdev_deps="linux_fb_h"
2704 gdigrab_indev_deps="CreateDIBSection"
2705 gdigrab_indev_extralibs="-lgdi32"
2706 gdigrab_indev_select="bmp_decoder"
2707 iec61883_indev_deps="libiec61883"
2708 jack_indev_deps="jack_jack_h sem_timedwait"
2709 lavfi_indev_deps="avfilter"
2710 libcdio_indev_deps="libcdio"
2711 libdc1394_indev_deps="libdc1394"
2712 libv4l2_indev_deps="libv4l2"
2713 openal_indev_deps="openal"
2714 opengl_outdev_deps="opengl"
2715 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2716 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2717 pulse_indev_deps="libpulse"
2718 pulse_outdev_deps="libpulse"
2719 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2720 qtkit_indev_select="qtkit"
2721 sdl_outdev_deps="sdl"
2722 sndio_indev_deps="sndio_h"
2723 sndio_outdev_deps="sndio_h"
2724 v4l_indev_deps="linux_videodev_h"
2725 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2726 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2727 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2728 vfwcap_indev_extralibs="-lavicap32"
2729 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2730 xv_outdev_extralibs="-lXv -lX11 -lXext"
2731 x11grab_indev_deps="x11grab"
2732 x11grab_xcb_indev_deps="libxcb"
2733
2734 # protocols
2735 async_protocol_deps="threads"
2736 bluray_protocol_deps="libbluray"
2737 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2738 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2739 ffrtmpcrypt_protocol_select="tcp_protocol"
2740 ffrtmphttp_protocol_deps="!librtmp_protocol"
2741 ffrtmphttp_protocol_select="http_protocol"
2742 ftp_protocol_select="tcp_protocol"
2743 gopher_protocol_select="network"
2744 http_protocol_select="tcp_protocol"
2745 httpproxy_protocol_select="tcp_protocol"
2746 https_protocol_select="tls_protocol"
2747 icecast_protocol_select="http_protocol"
2748 librtmp_protocol_deps="librtmp"
2749 librtmpe_protocol_deps="librtmp"
2750 librtmps_protocol_deps="librtmp"
2751 librtmpt_protocol_deps="librtmp"
2752 librtmpte_protocol_deps="librtmp"
2753 libsmbclient_protocol_deps="libsmbclient gplv3"
2754 libssh_protocol_deps="libssh"
2755 mmsh_protocol_select="http_protocol"
2756 mmst_protocol_select="network"
2757 rtmp_protocol_deps="!librtmp_protocol"
2758 rtmp_protocol_select="tcp_protocol"
2759 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2760 rtmps_protocol_deps="!librtmp_protocol"
2761 rtmps_protocol_select="tls_protocol"
2762 rtmpt_protocol_select="ffrtmphttp_protocol"
2763 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2764 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2765 rtp_protocol_select="udp_protocol"
2766 sctp_protocol_deps="struct_sctp_event_subscribe"
2767 sctp_protocol_select="network"
2768 srtp_protocol_select="rtp_protocol"
2769 tcp_protocol_select="network"
2770 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2771 tls_gnutls_protocol_select="tcp_protocol"
2772 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2773 tls_openssl_protocol_select="tcp_protocol"
2774 tls_schannel_protocol_deps="schannel"
2775 tls_schannel_protocol_select="tcp_protocol"
2776 tls_securetransport_protocol_deps="securetransport"
2777 tls_securetransport_protocol_select="tcp_protocol"
2778 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2779 udp_protocol_select="network"
2780 udplite_protocol_select="network"
2781 unix_protocol_deps="sys_un_h"
2782 unix_protocol_select="network"
2783
2784 # filters
2785 amovie_filter_deps="avcodec avformat"
2786 aresample_filter_deps="swresample"
2787 ass_filter_deps="libass"
2788 asyncts_filter_deps="avresample"
2789 atempo_filter_deps="avcodec"
2790 atempo_filter_select="rdft"
2791 azmq_filter_deps="libzmq"
2792 blackframe_filter_deps="gpl"
2793 boxblur_filter_deps="gpl"
2794 bs2b_filter_deps="libbs2b"
2795 colormatrix_filter_deps="gpl"
2796 cover_rect_filter_deps="avcodec avformat gpl"
2797 cropdetect_filter_deps="gpl"
2798 delogo_filter_deps="gpl"
2799 deshake_filter_select="pixelutils"
2800 drawtext_filter_deps="libfreetype"
2801 dynaudnorm_filter_deps="copysign erf"
2802 ebur128_filter_deps="gpl"
2803 eq_filter_deps="gpl"
2804 fftfilt_filter_deps="avcodec"
2805 fftfilt_filter_select="rdft"
2806 flite_filter_deps="libflite"
2807 find_rect_filter_deps="avcodec avformat gpl"
2808 frei0r_filter_deps="frei0r dlopen"
2809 frei0r_src_filter_deps="frei0r dlopen"
2810 fspp_filter_deps="gpl"
2811 geq_filter_deps="gpl"
2812 histeq_filter_deps="gpl"
2813 hqdn3d_filter_deps="gpl"
2814 interlace_filter_deps="gpl"
2815 kerndeint_filter_deps="gpl"
2816 ladspa_filter_deps="ladspa dlopen"
2817 mcdeint_filter_deps="avcodec gpl"
2818 movie_filter_deps="avcodec avformat"
2819 mpdecimate_filter_deps="gpl"
2820 mpdecimate_filter_select="pixelutils"
2821 mptestsrc_filter_deps="gpl"
2822 negate_filter_deps="lut_filter"
2823 perspective_filter_deps="gpl"
2824 pp7_filter_deps="gpl"
2825 ocr_filter_deps="libtesseract"
2826 ocv_filter_deps="libopencv"
2827 owdenoise_filter_deps="gpl"
2828 pan_filter_deps="swresample"
2829 phase_filter_deps="gpl"
2830 pp_filter_deps="gpl postproc"
2831 pullup_filter_deps="gpl"
2832 removelogo_filter_deps="avcodec avformat swscale"
2833 repeatfields_filter_deps="gpl"
2834 resample_filter_deps="avresample"
2835 rubberband_filter_deps="librubberband"
2836 sab_filter_deps="gpl swscale"
2837 scale_filter_deps="swscale"
2838 scale2ref_filter_deps="swscale"
2839 select_filter_select="pixelutils"
2840 smartblur_filter_deps="gpl swscale"
2841 showcqt_filter_deps="avcodec avformat swscale"
2842 showcqt_filter_select="fft"
2843 showfreqs_filter_deps="avcodec"
2844 showfreqs_filter_select="fft"
2845 showspectrum_filter_deps="avcodec"
2846 showspectrum_filter_select="rdft"
2847 spp_filter_deps="gpl avcodec"
2848 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2849 stereo3d_filter_deps="gpl"
2850 subtitles_filter_deps="avformat avcodec libass"
2851 super2xsai_filter_deps="gpl"
2852 tinterlace_filter_deps="gpl"
2853 vidstabdetect_filter_deps="libvidstab"
2854 vidstabtransform_filter_deps="libvidstab"
2855 pixfmts_super2xsai_test_deps="super2xsai_filter"
2856 tinterlace_merge_test_deps="tinterlace_filter"
2857 tinterlace_pad_test_deps="tinterlace_filter"
2858 uspp_filter_deps="gpl avcodec"
2859 zmq_filter_deps="libzmq"
2860 zoompan_filter_deps="swscale"
2861 zscale_filter_deps="libzimg"
2862
2863 # examples
2864 avio_reading="avformat avcodec avutil"
2865 avio_dir_cmd="avformat avutil"
2866 avcodec_example_deps="avcodec avutil"
2867 decoding_encoding_example_deps="avcodec avformat avutil"
2868 demuxing_decoding_example_deps="avcodec avformat avutil"
2869 extract_mvs_example_deps="avcodec avformat avutil"
2870 filter_audio_example_deps="avfilter avutil"
2871 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2872 filtering_video_example_deps="avfilter avcodec avformat avutil"
2873 metadata_example_deps="avformat avutil"
2874 muxing_example_deps="avcodec avformat avutil swscale"
2875 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2876 remuxing_example_deps="avcodec avformat avutil"
2877 resampling_audio_example_deps="avutil swresample"
2878 scaling_video_example_deps="avutil swscale"
2879 transcode_aac_example_deps="avcodec avformat swresample"
2880 transcoding_example_deps="avfilter avcodec avformat avutil"
2881
2882 # libraries, in linking order
2883 avcodec_deps="avutil"
2884 avdevice_deps="avformat avcodec avutil"
2885 avfilter_deps="avutil"
2886 avformat_deps="avcodec avutil"
2887 avresample_deps="avutil"
2888 postproc_deps="avutil gpl"
2889 swresample_deps="avutil"
2890 swscale_deps="avutil"
2891
2892 # programs
2893 ffmpeg_deps="avcodec avfilter avformat swresample"
2894 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2895                null_filter
2896                setpts_filter trim_filter"
2897 ffplay_deps="avcodec avformat swscale swresample sdl"
2898 ffplay_libs='$sdl_libs'
2899 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2900 ffprobe_deps="avcodec avformat"
2901 ffserver_deps="avformat fork sarestart"
2902 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2903
2904 # documentation
2905 podpages_deps="perl"
2906 manpages_deps="perl pod2man"
2907 htmlpages_deps="perl"
2908 htmlpages_deps_any="makeinfo_html texi2html"
2909 txtpages_deps="perl makeinfo"
2910 doc_deps_any="manpages htmlpages podpages txtpages"
2911
2912 # default parameters
2913
2914 logfile="config.log"
2915
2916 # installation paths
2917 prefix_default="/usr/local"
2918 bindir_default='${prefix}/bin'
2919 datadir_default='${prefix}/share/ffmpeg'
2920 docdir_default='${prefix}/share/doc/ffmpeg'
2921 incdir_default='${prefix}/include'
2922 libdir_default='${prefix}/lib'
2923 mandir_default='${prefix}/share/man'
2924
2925 # toolchain
2926 ar_default="ar"
2927 cc_default="gcc"
2928 cxx_default="g++"
2929 host_cc_default="gcc"
2930 cp_f="cp -f"
2931 doxygen_default="doxygen"
2932 install="install"
2933 ln_s="ln -s -f"
2934 nm_default="nm -g"
2935 objformat="elf"
2936 pkg_config_default=pkg-config
2937 ranlib_default="ranlib"
2938 strip_default="strip"
2939 yasmexe_default="yasm"
2940 windres_default="windres"
2941
2942 # OS
2943 target_os_default=$(tolower $(uname -s))
2944 host_os=$target_os_default
2945
2946 # machine
2947 if test "$target_os_default" = aix; then
2948     arch_default=$(uname -p)
2949     strip_default="strip -X32_64"
2950 else
2951     arch_default=$(uname -m)
2952 fi
2953 cpu="generic"
2954 intrinsics="none"
2955
2956 # configurable options
2957 enable $PROGRAM_LIST
2958 enable $DOCUMENT_LIST
2959 enable $EXAMPLE_LIST
2960 enable $(filter_out avresample $LIBRARY_LIST)
2961 enable stripping
2962
2963 enable asm
2964 enable debug
2965 enable doc
2966 enable faan faandct faanidct
2967 enable optimizations
2968 enable runtime_cpudetect
2969 enable safe_bitstream_reader
2970 enable static
2971 enable swscale_alpha
2972 enable valgrind_backtrace
2973
2974 sws_max_filter_size_default=256
2975 set_default sws_max_filter_size
2976
2977 # Enable hwaccels by default.
2978 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
2979 enable xlib
2980
2981 # build settings
2982 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2983 LIBPREF="lib"
2984 LIBSUF=".a"
2985 FULLNAME='$(NAME)$(BUILDSUF)'
2986 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2987 SLIBPREF="lib"
2988 SLIBSUF=".so"
2989 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2990 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2991 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2992 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2993 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2994 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2995
2996 asflags_filter=echo
2997 cflags_filter=echo
2998 ldflags_filter=echo
2999
3000 AS_C='-c'
3001 AS_O='-o $@'
3002 CC_C='-c'
3003 CC_E='-E -o $@'
3004 CC_O='-o $@'
3005 CXX_C='-c'
3006 CXX_O='-o $@'
3007 LD_O='-o $@'
3008 LD_LIB='-l%'
3009 LD_PATH='-L'
3010 HOSTCC_C='-c'
3011 HOSTCC_E='-E -o $@'
3012 HOSTCC_O='-o $@'
3013 HOSTLD_O='-o $@'
3014
3015 host_libs='-lm'
3016 host_cflags_filter=echo
3017 host_ldflags_filter=echo
3018
3019 target_path='$(CURDIR)'
3020
3021 # since the object filename is not given with the -MM flag, the compiler
3022 # is only able to print the basename, and we must add the path ourselves
3023 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3024 DEPFLAGS='-MM'
3025
3026 # find source path
3027 if test -f configure; then
3028     source_path=.
3029 else
3030     source_path=$(cd $(dirname "$0"); pwd)
3031     case "$source_path" in
3032         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3033     esac
3034     test -e "$source_path/config.h" &&
3035         die "Out of tree builds are impossible with config.h in source dir."
3036 fi
3037
3038 for v in "$@"; do
3039     r=${v#*=}
3040     l=${v%"$r"}
3041     r=$(sh_quote "$r")
3042     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3043 done
3044
3045 find_things(){
3046     thing=$1
3047     pattern=$2
3048     file=$source_path/$3
3049     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3050 }
3051
3052 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3053 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3054 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3055 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3056 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3057 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3058 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3059 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3060 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3061 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3062 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3063
3064 ALL_COMPONENTS="
3065     $BSF_LIST
3066     $DECODER_LIST
3067     $DEMUXER_LIST
3068     $ENCODER_LIST
3069     $FILTER_LIST
3070     $HWACCEL_LIST
3071     $INDEV_LIST
3072     $MUXER_LIST
3073     $OUTDEV_LIST
3074     $PARSER_LIST
3075     $PROTOCOL_LIST
3076 "
3077
3078 for n in $COMPONENT_LIST; do
3079     v=$(toupper ${n%s})_LIST
3080     eval enable \$$v
3081     eval ${n}_if_any="\$$v"
3082 done
3083
3084 enable $ARCH_EXT_LIST
3085
3086 die_unknown(){
3087     echo "Unknown option \"$1\"."
3088     echo "See $0 --help for available options."
3089     exit 1
3090 }
3091
3092 print_in_columns() {
3093     cols=$(expr $ncols / 24)
3094     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3095 }
3096
3097 show_list() {
3098     suffix=_$1
3099     shift
3100     echo $* | sed s/$suffix//g | print_in_columns
3101     exit 0
3102 }
3103
3104 rand_list(){
3105     IFS=', '
3106     set -- $*
3107     unset IFS
3108     for thing; do
3109         comp=${thing%:*}
3110         prob=${thing#$comp}
3111         prob=${prob#:}
3112         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3113         echo "prob ${prob:-0.5}"
3114         printf '%s\n' $comp
3115     done
3116 }
3117
3118 do_random(){
3119     action=$1
3120     shift
3121     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3122     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3123 }
3124
3125 for opt do
3126     optval="${opt#*=}"
3127     case "$opt" in
3128         --extra-ldflags=*)
3129             add_ldflags $optval
3130         ;;
3131         --extra-ldexeflags=*)
3132             add_ldexeflags $optval
3133         ;;
3134         --extra-ldlibflags=*)
3135             add_ldlibflags $optval
3136         ;;
3137         --extra-libs=*)
3138             add_extralibs $optval
3139         ;;
3140         --disable-devices)
3141             disable $INDEV_LIST $OUTDEV_LIST
3142         ;;
3143         --enable-debug=*)
3144             debuglevel="$optval"
3145         ;;
3146         --disable-programs)
3147             disable $PROGRAM_LIST
3148         ;;
3149         --disable-everything)
3150             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3151         ;;
3152         --disable-all)
3153             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3154             disable $LIBRARY_LIST $PROGRAM_LIST doc
3155             enable avutil
3156         ;;
3157         --enable-random|--disable-random)
3158             action=${opt%%-random}
3159             do_random ${action#--} $COMPONENT_LIST
3160         ;;
3161         --enable-random=*|--disable-random=*)
3162             action=${opt%%-random=*}
3163             do_random ${action#--} $optval
3164         ;;
3165         --enable-*=*|--disable-*=*)
3166             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3167             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3168             eval list=\$$(toupper $thing)_LIST
3169             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3170             list=$(filter "$name" $list)
3171             [ "$list" = "" ] && warn "Option $opt did not match anything"
3172             $action $list
3173         ;;
3174         --enable-?*|--disable-?*)
3175             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3176             if is_in $option $COMPONENT_LIST; then
3177                 test $action = disable && action=unset
3178                 eval $action \$$(toupper ${option%s})_LIST
3179             elif is_in $option $CMDLINE_SELECT; then
3180                 $action $option
3181             else
3182                 die_unknown $opt
3183             fi
3184         ;;
3185         --list-*)
3186             NAME="${opt#--list-}"
3187             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3188             NAME=${NAME%s}
3189             eval show_list $NAME \$$(toupper $NAME)_LIST
3190         ;;
3191         --help|-h) show_help
3192         ;;
3193         --fatal-warnings) enable fatal_warnings
3194         ;;
3195         *)
3196             optname="${opt%%=*}"
3197             optname="${optname#--}"
3198             optname=$(echo "$optname" | sed 's/-/_/g')
3199             if is_in $optname $CMDLINE_SET; then
3200                 eval $optname='$optval'
3201             elif is_in $optname $CMDLINE_APPEND; then
3202                 append $optname "$optval"
3203             else
3204                 die_unknown $opt
3205             fi
3206         ;;
3207     esac
3208 done
3209
3210 for e in $env; do
3211     eval "export $e"
3212 done
3213
3214 disabled logging && logfile=/dev/null
3215
3216 # Disable all the library-specific components if the library itself
3217 # is disabled, see AVCODEC_LIST and following _LIST variables.
3218
3219 disable_components(){
3220     disabled ${1} && disable $(
3221         eval components="\$$(toupper ${1})_COMPONENTS"
3222         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3223     )
3224 }
3225
3226 map 'disable_components $v' $LIBRARY_LIST
3227
3228 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3229 set >> $logfile
3230
3231 test -n "$valgrind" && toolchain="valgrind-memcheck"
3232
3233 case "$toolchain" in
3234     clang-asan)
3235         cc_default="clang"
3236         add_cflags  -fsanitize=address
3237         add_ldflags -fsanitize=address
3238     ;;
3239     clang-tsan)
3240         cc_default="clang"
3241         add_cflags  -fsanitize=thread -pie
3242         add_ldflags -fsanitize=thread -pie
3243     ;;
3244     clang-usan)
3245         cc_default="clang"
3246         add_cflags  -fsanitize=undefined
3247         add_ldflags -fsanitize=undefined
3248     ;;
3249     gcc-asan)
3250         cc_default="gcc"
3251         add_cflags  -fsanitize=address
3252         add_ldflags -fsanitize=address
3253     ;;
3254     gcc-tsan)
3255         cc_default="gcc"
3256         add_cflags  -fsanitize=thread -pie -fPIC
3257         add_ldflags -fsanitize=thread -pie -fPIC
3258     ;;
3259     gcc-usan)
3260         cc_default="gcc"
3261         add_cflags  -fsanitize=undefined
3262         add_ldflags -fsanitize=undefined
3263     ;;
3264     valgrind-massif)
3265         target_exec_default=${valgrind:-"valgrind"}
3266         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"
3267     ;;
3268     valgrind-memcheck)
3269         target_exec_default=${valgrind:-"valgrind"}
3270         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3271     ;;
3272     msvc)
3273         # Check whether the current MSVC version needs the C99 converter.
3274         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3275         # support enough of C99 to build ffmpeg. Default to the new
3276         # behaviour if the regexp was unable to match anything, since this
3277         # successfully parses the version number of existing supported
3278         # versions that require the converter (MSVC 2010 and 2012).
3279         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3280         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3281             cc_default="cl"
3282         else
3283             cc_default="c99wrap cl"
3284         fi
3285         ld_default="$source_path/compat/windows/mslink"
3286         nm_default="dumpbin -symbols"
3287         ar_default="lib"
3288         case "$arch" in
3289         arm*)
3290             as_default="armasm"
3291             ;;
3292         esac
3293         target_os_default="win32"
3294         # Use a relative path for TMPDIR. This makes sure all the
3295         # ffconf temp files are written with a relative path, avoiding
3296         # issues with msys/win32 path conversion for MSVC parameters
3297         # such as -Fo<file> or -out:<file>.
3298         TMPDIR=.
3299     ;;
3300     icl)
3301         cc_default="icl"
3302         ld_default="xilink"
3303         nm_default="dumpbin -symbols"
3304         ar_default="xilib"
3305         target_os_default="win32"
3306         TMPDIR=.
3307     ;;
3308     gcov)
3309         add_cflags  -fprofile-arcs -ftest-coverage
3310         add_ldflags -fprofile-arcs -ftest-coverage
3311     ;;
3312     hardened)
3313         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3314         add_cflags   -fno-strict-overflow -fstack-protector-all
3315         add_ldflags  -Wl,-z,relro -Wl,-z,now
3316     ;;
3317     ?*)
3318         die "Unknown toolchain $toolchain"
3319     ;;
3320 esac
3321
3322 test -n "$cross_prefix" && enable cross_compile
3323
3324 if enabled cross_compile; then
3325     test -n "$arch" && test -n "$target_os" ||
3326         die "Must specify target arch and OS when cross-compiling"
3327 fi
3328
3329 ar_default="${cross_prefix}${ar_default}"
3330 cc_default="${cross_prefix}${cc_default}"
3331 cxx_default="${cross_prefix}${cxx_default}"
3332 nm_default="${cross_prefix}${nm_default}"
3333 pkg_config_default="${cross_prefix}${pkg_config_default}"
3334 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3335     ranlib_default="${cross_prefix}${ranlib_default} -D"
3336 else
3337     ranlib_default="${cross_prefix}${ranlib_default}"
3338 fi
3339 strip_default="${cross_prefix}${strip_default}"
3340 windres_default="${cross_prefix}${windres_default}"
3341
3342 sysinclude_default="${sysroot}/usr/include"
3343
3344 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3345     target_exec target_os yasmexe
3346 enabled cross_compile || host_cc_default=$cc
3347 set_default host_cc
3348
3349 pkg_config_fail_message=""
3350 if ! $pkg_config --version >/dev/null 2>&1; then
3351     warn "$pkg_config not found, library detection may fail."
3352     pkg_config=false
3353 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3354     pkg_config_fail_message="
3355 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3356 fi
3357
3358 if test $doxygen != $doxygen_default && \
3359   ! $doxygen --version >/dev/null 2>&1; then
3360     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3361 fi
3362
3363 exesuf() {
3364     case $1 in
3365         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3366     esac
3367 }
3368
3369 EXESUF=$(exesuf $target_os)
3370 HOSTEXESUF=$(exesuf $host_os)
3371
3372 # set temporary file name
3373 : ${TMPDIR:=$TEMPDIR}
3374 : ${TMPDIR:=$TMP}
3375 : ${TMPDIR:=/tmp}
3376
3377 if [ -n "$tempprefix" ] ; then
3378     mktemp(){
3379         echo $tempprefix.${HOSTNAME}.${UID}
3380     }
3381 elif ! check_cmd mktemp -u XXXXXX; then
3382     # simple replacement for missing mktemp
3383     # NOT SAFE FOR GENERAL USE
3384     mktemp(){
3385         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3386     }
3387 fi
3388
3389 tmpfile(){
3390     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3391         (set -C; exec > $tmp) 2>/dev/null ||
3392         die "Unable to create temporary file in $TMPDIR."
3393     append TMPFILES $tmp
3394     eval $1=$tmp
3395 }
3396
3397 trap 'rm -f -- $TMPFILES' EXIT
3398
3399 tmpfile TMPASM .asm
3400 tmpfile TMPC   .c
3401 tmpfile TMPCPP .cpp
3402 tmpfile TMPE   $EXESUF
3403 tmpfile TMPH   .h
3404 tmpfile TMPM   .m
3405 tmpfile TMPO   .o
3406 tmpfile TMPS   .S
3407 tmpfile TMPSH  .sh
3408 tmpfile TMPV   .ver
3409
3410 unset -f mktemp
3411
3412 chmod +x $TMPE
3413
3414 # make sure we can execute files in $TMPDIR
3415 cat > $TMPSH 2>> $logfile <<EOF
3416 #! /bin/sh
3417 EOF
3418 chmod +x $TMPSH >> $logfile 2>&1
3419 if ! $TMPSH >> $logfile 2>&1; then
3420     cat <<EOF
3421 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3422 variable to another directory and make sure that it is not mounted noexec.
3423 EOF
3424     die "Sanity test failed."
3425 fi
3426
3427 armasm_flags(){
3428     for flag; do
3429         case $flag in
3430             # Filter out MSVC cl.exe options from cflags that shouldn't
3431             # be passed to gas-preprocessor
3432             -M[TD]*)                                            ;;
3433             *)                  echo $flag                      ;;
3434         esac
3435    done
3436 }
3437
3438 ccc_flags(){
3439     for flag; do
3440         case $flag in
3441             -std=c99)           echo -c99                       ;;
3442             -mcpu=*)            echo -arch ${flag#*=}           ;;
3443             -mieee)             echo -ieee                      ;;
3444             -O*|-fast)          echo $flag                      ;;
3445             -fno-math-errno)    echo -assume nomath_errno       ;;
3446             -g)                 echo -g3                        ;;
3447             -Wall)              echo -msg_enable level2         ;;
3448             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3449             -Wl,*)              echo $flag                      ;;
3450             -f*|-W*)                                            ;;
3451             *)                  echo $flag                      ;;
3452         esac
3453    done
3454 }
3455
3456 cparser_flags(){
3457     for flag; do
3458         case $flag in
3459             -Wno-switch)             echo -Wno-switch-enum ;;
3460             -Wno-format-zero-length) ;;
3461             -Wdisabled-optimization) ;;
3462             -Wno-pointer-sign)       echo -Wno-other ;;
3463             *)                       echo $flag ;;
3464         esac
3465     done
3466 }
3467
3468 msvc_common_flags(){
3469     for flag; do
3470         case $flag in
3471             # In addition to specifying certain flags under the compiler
3472             # specific filters, they must be specified here as well or else the
3473             # generic catch all at the bottom will print the original flag.
3474             -Wall)                ;;
3475             -std=c99)             ;;
3476             # Common flags
3477             -fomit-frame-pointer) ;;
3478             -g)                   echo -Z7 ;;
3479             -fno-math-errno)      ;;
3480             -fno-common)          ;;
3481             -fno-signed-zeros)    ;;
3482             -fPIC)                ;;
3483             -mthumb)              ;;
3484             -march=*)             ;;
3485             -lz)                  echo zlib.lib ;;
3486             -lavifil32)           echo vfw32.lib ;;
3487             -lavicap32)           echo vfw32.lib user32.lib ;;
3488             -l*)                  echo ${flag#-l}.lib ;;
3489             -LARGEADDRESSAWARE)   echo $flag ;;
3490             -L*)                  echo -libpath:${flag#-L} ;;
3491             *)                    echo $flag ;;
3492         esac
3493     done
3494 }
3495
3496 msvc_flags(){
3497     msvc_common_flags "$@"
3498     for flag; do
3499         case $flag in
3500             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3501                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3502                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3503                                        -wd4307 \
3504                                        -wd4273 -wd4554 -wd4701 ;;
3505         esac
3506     done
3507 }
3508
3509 icl_flags(){
3510     msvc_common_flags "$@"
3511     for flag; do
3512         case $flag in
3513             # Despite what Intel's documentation says -Wall, which is supported
3514             # on Windows, does enable remarks so disable them here.
3515             -Wall)                echo $flag -Qdiag-disable:remark ;;
3516             -std=c99)             echo -Qstd=c99 ;;
3517             -flto)                echo -ipo ;;
3518         esac
3519     done
3520 }
3521
3522 icc_flags(){
3523     for flag; do
3524         case $flag in
3525             -flto)                echo -ipo ;;
3526             *)                    echo $flag ;;
3527         esac
3528     done
3529 }
3530
3531 pgi_flags(){
3532     for flag; do
3533         case $flag in
3534             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3535             -fomit-frame-pointer) echo -Mnoframe ;;
3536             -g)                   echo -gopt ;;
3537             *)                    echo $flag ;;
3538         esac
3539     done
3540 }
3541
3542 suncc_flags(){
3543     for flag; do
3544         case $flag in
3545             -march=*|-mcpu=*)
3546                 case "${flag#*=}" in
3547                     native)                   echo -xtarget=native       ;;
3548                     v9|niagara)               echo -xarch=sparc          ;;
3549                     ultrasparc)               echo -xarch=sparcvis       ;;
3550                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3551                     i586|pentium)             echo -xchip=pentium        ;;
3552                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3553                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3554                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3555                     pentium4*)          echo -xtarget=pentium4           ;;
3556                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3557                     *-sse3)             echo -xarch=sse3                 ;;
3558                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3559                     bonnell)                   echo -xarch=ssse3         ;;
3560                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3561                     westmere)                  echo -xtarget=westmere    ;;
3562                     silvermont)                echo -xarch=sse4_2        ;;
3563                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3564                     core-avx*|ivybridge|haswell|broadwell)
3565                                                echo -xarch=avx           ;;
3566                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3567                     btver1)                    echo -xarch=amdsse4a      ;;
3568                     btver2|bdver*)             echo -xarch=avx           ;;
3569                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3570                     k8|opteron|athlon64|athlon-fx)
3571                                                echo -xarch=sse2a         ;;
3572                     athlon*)                   echo -xarch=pentium_proa  ;;
3573                 esac
3574                 ;;
3575             -std=c99)             echo -xc99              ;;
3576             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3577             -fPIC)                echo -KPIC -xcode=pic32 ;;
3578             -W*,*)                echo $flag              ;;
3579             -f*-*|-W*|-mimpure-text)                      ;;
3580             -shared)              echo -G                 ;;
3581             *)                    echo $flag              ;;
3582         esac
3583     done
3584 }
3585
3586 tms470_flags(){
3587     for flag; do
3588         case $flag in
3589             -march=*|-mcpu=*)
3590                 case "${flag#*=}" in
3591                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3592                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3593                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3594                     armv6*|arm11*)          echo -mv=6   ;;
3595                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3596                                             echo -mv=5e  ;;
3597                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3598                 esac
3599                 ;;
3600             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3601             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3602             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3603             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3604             -msoft-float)   echo --float_support=vfplib       ;;
3605             -O[0-3]|-mf=*)  echo $flag                        ;;
3606             -g)             echo -g -mn                       ;;
3607             -pds=*)         echo $flag                        ;;
3608             -D*|-I*)        echo $flag                        ;;
3609             --gcc|--abi=*)  echo $flag                        ;;
3610             -me)            echo $flag                        ;;
3611         esac
3612     done
3613 }
3614
3615 probe_cc(){
3616     pfx=$1
3617     _cc=$2
3618     first=$3
3619
3620     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3621     unset _ld_o _ldflags _ld_lib _ld_path
3622     unset _depflags _DEPCMD _DEPFLAGS
3623     _flags_filter=echo
3624
3625     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3626         true # no-op to avoid reading stdin in following checks
3627     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3628         _type=llvm_gcc
3629         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3630         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3631         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3632         _cflags_speed='-O3'
3633         _cflags_size='-Os'
3634     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3635         _type=gcc
3636         gcc_version=$($_cc --version | head -n1)
3637         gcc_basever=$($_cc -dumpversion)
3638         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3639         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3640         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3641         case $gcc_basever in
3642             2*) ;;
3643             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3644         esac
3645         if [ "$first" = true ]; then
3646             case $gcc_basever in
3647                 4.2*)
3648                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3649             esac
3650         fi
3651         _cflags_speed='-O3'
3652         _cflags_size='-Os'
3653     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3654         _type=icc
3655         _ident=$($_cc --version | head -n1)
3656         _depflags='-MMD'
3657         _cflags_speed='-O3'
3658         _cflags_size='-Os'
3659         _cflags_noopt='-O1'
3660         _flags_filter=icc_flags
3661     elif $_cc -v 2>&1 | grep -q xlc; then
3662         _type=xlc
3663         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3664         _cflags_speed='-O5'
3665         _cflags_size='-O5 -qcompact'
3666     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3667         _type=ccc
3668         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3669         _DEPFLAGS='-M'
3670         _cflags_speed='-fast'
3671         _cflags_size='-O1'
3672         _flags_filter=ccc_flags
3673     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3674         test -d "$sysroot" || die "No valid sysroot specified."
3675         _type=armcc
3676         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3677         armcc_conf="$PWD/armcc.conf"
3678         $_cc --arm_linux_configure                 \
3679              --arm_linux_config_file="$armcc_conf" \
3680              --configure_sysroot="$sysroot"        \
3681              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3682              die "Error creating armcc configuration file."
3683         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3684         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3685         as_default="${cross_prefix}gcc"
3686         _depflags='-MMD'
3687         _cflags_speed='-O3'
3688         _cflags_size='-Os'
3689     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3690         _type=tms470
3691         _ident=$($_cc -version | head -n1 | tr -s ' ')
3692         _flags='--gcc --abi=eabi -me'
3693         _cc_e='-ppl -fe=$@'
3694         _cc_o='-fe=$@'
3695         _depflags='-ppa -ppd=$(@:.o=.d)'
3696         _cflags_speed='-O3 -mf=5'
3697         _cflags_size='-O3 -mf=2'
3698         _flags_filter=tms470_flags
3699     elif $_cc -v 2>&1 | grep -q clang; then
3700         _type=clang
3701         _ident=$($_cc --version 2>/dev/null | head -n1)
3702         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3703         _cflags_speed='-O3'
3704         _cflags_size='-Os'
3705     elif $_cc -V 2>&1 | grep -q Sun; then
3706         _type=suncc
3707         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3708         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3709         _DEPFLAGS='-xM1 -xc99'
3710         _ldflags='-std=c99'
3711         _cflags_speed='-O5'
3712         _cflags_size='-O5 -xspace'
3713         _flags_filter=suncc_flags
3714     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3715         _type=pathscale
3716         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3717         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3718         _cflags_speed='-O2'
3719         _cflags_size='-Os'
3720         _flags_filter='filter_out -Wdisabled-optimization'
3721     elif $_cc -v 2>&1 | grep -q Open64; then
3722         _type=open64
3723         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3724         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3725         _cflags_speed='-O2'
3726         _cflags_size='-Os'
3727         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3728     elif $_cc -V 2>&1 | grep -q Portland; then
3729         _type=pgi
3730         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3731         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3732         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3733         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3734         _cflags_noopt="-O"
3735         _flags_filter=pgi_flags
3736     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3737         _type=armasm
3738         _ident=$($_cc | head -n1)
3739         # 4509: "This form of conditional instruction is deprecated"
3740         _flags="-nologo -ignore 4509"
3741         _flags_filter=armasm_flags
3742     elif $_cc 2>&1 | grep -q Intel; then
3743         _type=icl
3744         _ident=$($_cc 2>&1 | head -n1)
3745         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3746         # Not only is O3 broken on 13.x+ but it is slower on all previous
3747         # versions (tested) as well.
3748         _cflags_speed="-O2"
3749         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3750         if $_cc 2>&1 | grep -q Linker; then
3751             _ld_o='-out:$@'
3752         else
3753             _ld_o='-Fe$@'
3754         fi
3755         _cc_o='-Fo$@'
3756         _cc_e='-P'
3757         _flags_filter=icl_flags
3758         _ld_lib='lib%.a'
3759         _ld_path='-libpath:'
3760         # -Qdiag-error to make icl error when seeing certain unknown arguments
3761         _flags='-nologo -Qdiag-error:4044,10157'
3762         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3763         # with MSVC which enables it by default.
3764         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3765         disable stripping
3766     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3767         _type=msvc
3768         _ident=$($_cc 2>&1 | head -n1)
3769         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3770         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3771         _cflags_speed="-O2"
3772         _cflags_size="-O1"
3773         if $_cc -nologo- 2>&1 | grep -q Linker; then
3774             _ld_o='-out:$@'
3775         else
3776             _ld_o='-Fe$@'
3777         fi
3778         _cc_o='-Fo$@'
3779         _cc_e='-P -Fi$@'
3780         _flags_filter=msvc_flags
3781         _ld_lib='lib%.a'
3782         _ld_path='-libpath:'
3783         _flags='-nologo'
3784         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3785         disable stripping
3786     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3787         _type=cparser
3788         _ident=$($_cc --version | head -n1)
3789         _depflags='-MMD'
3790         _cflags_speed='-O4'
3791         _cflags_size='-O2'
3792         _flags_filter=cparser_flags
3793     fi
3794
3795     eval ${pfx}_type=\$_type
3796     eval ${pfx}_ident=\$_ident
3797 }
3798
3799 set_ccvars(){
3800     eval ${1}_C=\${_cc_c-\${${1}_C}}
3801     eval ${1}_E=\${_cc_e-\${${1}_E}}
3802     eval ${1}_O=\${_cc_o-\${${1}_O}}
3803
3804     if [ -n "$_depflags" ]; then
3805         eval ${1}_DEPFLAGS=\$_depflags
3806     else
3807         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3808         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3809         eval DEP${1}FLAGS=\$_flags
3810     fi
3811 }
3812
3813 probe_cc cc "$cc" "true"
3814 cflags_filter=$_flags_filter
3815 cflags_speed=$_cflags_speed
3816 cflags_size=$_cflags_size
3817 cflags_noopt=$_cflags_noopt
3818 add_cflags $_flags $_cflags
3819 cc_ldflags=$_ldflags
3820 set_ccvars CC
3821
3822 probe_cc hostcc "$host_cc"
3823 host_cflags_filter=$_flags_filter
3824 add_host_cflags  $_flags $_cflags
3825 set_ccvars HOSTCC
3826
3827 test -n "$cc_type" && enable $cc_type ||
3828     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3829
3830 : ${as_default:=$cc}
3831 : ${dep_cc_default:=$cc}
3832 : ${ld_default:=$cc}
3833 : ${host_ld_default:=$host_cc}
3834 set_default ar as dep_cc ld host_ld windres
3835
3836 probe_cc as "$as"
3837 asflags_filter=$_flags_filter
3838 add_asflags $_flags $_cflags
3839 set_ccvars AS
3840
3841 probe_cc ld "$ld"
3842 ldflags_filter=$_flags_filter
3843 add_ldflags $_flags $_ldflags
3844 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3845 LD_O=${_ld_o-$LD_O}
3846 LD_LIB=${_ld_lib-$LD_LIB}
3847 LD_PATH=${_ld_path-$LD_PATH}
3848
3849 probe_cc hostld "$host_ld"
3850 host_ldflags_filter=$_flags_filter
3851 add_host_ldflags $_flags $_ldflags
3852 HOSTLD_O=${_ld_o-$HOSTLD_O}
3853
3854 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3855     probe_cc depcc "$dep_cc"
3856     CCDEP=${_DEPCMD:-$DEPCMD}
3857     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3858     DEPCCFLAGS=$_flags
3859 fi
3860
3861 if $ar 2>&1 | grep -q Microsoft; then
3862     arflags="-nologo"
3863     ar_o='-out:$@'
3864 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3865     arflags="rq"
3866     ar_o='$@'
3867 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3868     arflags='-Xany -r -c'
3869     ar_o='$@'
3870 elif $ar 2>&1 | grep -q "\[D\] "; then
3871     arflags="rcD"
3872     ar_o='$@'
3873 else
3874     arflags="rc"
3875     ar_o='$@'
3876 fi
3877
3878 add_cflags $extra_cflags
3879 add_cxxflags $extra_cxxflags
3880 add_asflags $extra_cflags
3881
3882 if test -n "$sysroot"; then
3883     case "$cc_type" in
3884         gcc|llvm_gcc|clang)
3885             add_cppflags --sysroot="$sysroot"
3886             add_ldflags --sysroot="$sysroot"
3887 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3888             add_cppflags -isysroot "$sysroot"
3889             add_ldflags -isysroot "$sysroot"
3890         ;;
3891         tms470)
3892             add_cppflags -I"$sysinclude"
3893             add_ldflags  --sysroot="$sysroot"
3894         ;;
3895     esac
3896 fi
3897
3898 if test "$cpu" = host; then
3899     enabled cross_compile &&
3900         die "--cpu=host makes no sense when cross-compiling."
3901
3902     case "$cc_type" in
3903         gcc|llvm_gcc)
3904             check_native(){
3905                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3906                 sed -n "/cc1.*$1=/{
3907                             s/.*$1=\\([^ ]*\\).*/\\1/
3908                             p
3909                             q
3910                         }" $TMPE
3911             }
3912             cpu=$(check_native -march || check_native -mcpu)
3913         ;;
3914     esac
3915
3916     test "${cpu:-host}" = host &&
3917         die "--cpu=host not supported with compiler $cc"
3918 fi
3919
3920 # Deal with common $arch aliases
3921 case "$arch" in
3922     aarch64|arm64)
3923         arch="aarch64"
3924     ;;
3925     arm*|iPad*|iPhone*)
3926         arch="arm"
3927     ;;
3928     mips*|IP*)
3929         arch="mips"
3930     ;;
3931     parisc*|hppa*)
3932         arch="parisc"
3933     ;;
3934     "Power Macintosh"|ppc*|powerpc*)
3935         arch="ppc"
3936     ;;
3937     s390|s390x)
3938         arch="s390"
3939     ;;
3940     sh4|sh)
3941         arch="sh4"
3942     ;;
3943     sun4u|sparc*)
3944         arch="sparc"
3945     ;;
3946     tilegx|tile-gx)
3947         arch="tilegx"
3948     ;;
3949     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3950         arch="x86"
3951     ;;
3952 esac
3953
3954 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3955 enable $arch
3956
3957 # Add processor-specific flags
3958 if enabled aarch64; then
3959
3960     case $cpu in
3961         armv*)
3962             cpuflags="-march=$cpu"
3963         ;;
3964         *)
3965             cpuflags="-mcpu=$cpu"
3966         ;;
3967     esac
3968
3969 elif enabled alpha; then
3970
3971     cpuflags="-mcpu=$cpu"
3972
3973 elif enabled arm; then
3974
3975     check_arm_arch() {
3976         check_cpp_condition stddef.h \
3977             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3978             $cpuflags
3979     }
3980
3981     probe_arm_arch() {
3982         if   check_arm_arch 4;        then echo armv4;
3983         elif check_arm_arch 4T;       then echo armv4t;
3984         elif check_arm_arch 5;        then echo armv5;
3985         elif check_arm_arch 5E;       then echo armv5e;
3986         elif check_arm_arch 5T;       then echo armv5t;
3987         elif check_arm_arch 5TE;      then echo armv5te;
3988         elif check_arm_arch 5TEJ;     then echo armv5te;
3989         elif check_arm_arch 6;        then echo armv6;
3990         elif check_arm_arch 6J;       then echo armv6j;
3991         elif check_arm_arch 6K;       then echo armv6k;
3992         elif check_arm_arch 6Z;       then echo armv6z;
3993         elif check_arm_arch 6ZK;      then echo armv6zk;
3994         elif check_arm_arch 6T2;      then echo armv6t2;
3995         elif check_arm_arch 7;        then echo armv7;
3996         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3997         elif check_arm_arch 7S;       then echo armv7-a;
3998         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3999         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4000         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4001         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4002         fi
4003     }
4004
4005     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4006
4007     case $cpu in
4008         armv*)
4009             cpuflags="-march=$cpu"
4010             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4011         ;;
4012         *)
4013             cpuflags="-mcpu=$cpu"
4014             case $cpu in
4015                 cortex-a*)                               subarch=armv7a  ;;
4016                 cortex-r*)                               subarch=armv7r  ;;
4017                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4018                 arm11*)                                  subarch=armv6   ;;
4019                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4020                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4021                 *)                             subarch=$(probe_arm_arch) ;;
4022             esac
4023         ;;
4024     esac
4025
4026     case "$subarch" in
4027         armv5t*)    enable fast_clz                ;;
4028         armv[6-8]*)
4029             enable fast_clz
4030             disabled fast_unaligned || enable fast_unaligned
4031             ;;
4032     esac
4033
4034 elif enabled avr32; then
4035
4036     case $cpu in
4037         ap7[02]0[0-2])
4038             subarch="avr32_ap"
4039             cpuflags="-mpart=$cpu"
4040         ;;
4041         ap)
4042             subarch="avr32_ap"
4043             cpuflags="-march=$cpu"
4044         ;;
4045         uc3[ab]*)
4046             subarch="avr32_uc"
4047             cpuflags="-mcpu=$cpu"
4048         ;;
4049         uc)
4050             subarch="avr32_uc"
4051             cpuflags="-march=$cpu"
4052         ;;
4053     esac
4054
4055 elif enabled bfin; then
4056
4057     cpuflags="-mcpu=$cpu"
4058
4059 elif enabled mips; then
4060
4061     cpuflags="-march=$cpu"
4062
4063     case $cpu in
4064         24kc)
4065             disable mips32r5
4066             disable mips64r6
4067             disable mipsfpu
4068             disable mipsdspr1
4069             disable mipsdspr2
4070             disable msa
4071         ;;
4072         24kf*)
4073             disable mips32r5
4074             disable mips64r6
4075             disable mipsdspr1
4076             disable mipsdspr2
4077             disable msa