vaapi: Add VP9 hwaccell support
[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-gcrypt          enable gcrypt, needed for rtmp(t)e support
203                            if openssl, librtmp or gmp is not used [no]
204   --enable-gmp             enable gmp, needed for rtmp(t)e support
205                            if openssl or librtmp is not used [no]
206   --enable-gnutls          enable gnutls, needed for https support
207                            if openssl is not used [no]
208   --disable-iconv          disable iconv [autodetect]
209   --enable-ladspa          enable LADSPA audio filtering [no]
210   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
211   --enable-libass          enable libass subtitles rendering,
212                            needed for subtitles and ass filter [no]
213   --enable-libbluray       enable BluRay reading using libbluray [no]
214   --enable-libbs2b         enable bs2b DSP library [no]
215   --enable-libcaca         enable textual display using libcaca [no]
216   --enable-libcelt         enable CELT decoding via libcelt [no]
217   --enable-libcdio         enable audio CD grabbing with libcdio [no]
218   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
219                            and libraw1394 [no]
220   --enable-libdcadec       enable DCA decoding via libdcadec [no]
221   --enable-libfaac         enable AAC encoding via libfaac [no]
222   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
223   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
224   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
225   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
226   --enable-libgme          enable Game Music Emu via libgme [no]
227   --enable-libgsm          enable GSM de/encoding via libgsm [no]
228   --enable-libiec61883     enable iec61883 via libiec61883 [no]
229   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
230   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
231   --enable-libmfx          enable HW acceleration through libmfx
232   --enable-libmodplug      enable ModPlug via libmodplug [no]
233   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
234   --enable-libnut          enable NUT (de)muxing via libnut,
235                            native (de)muxer exists [no]
236   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
237   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
238   --enable-libopencv       enable video filtering via libopencv [no]
239   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
240   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
241   --enable-libopus         enable Opus de/encoding via libopus [no]
242   --enable-libpulse        enable Pulseaudio input via libpulse [no]
243   --enable-librubberband   enable rubberband needed for rubberband filter [no]
244   --enable-libquvi         enable quvi input via libquvi [no]
245   --enable-librtmp         enable RTMP[E] support via librtmp [no]
246   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
247   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
248   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
249   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
250   --enable-libsoxr         enable Include libsoxr resampling [no]
251   --enable-libspeex        enable Speex de/encoding via libspeex [no]
252   --enable-libssh          enable SFTP protocol via libssh [no]
253   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
258   --enable-libv4l2         enable libv4l2/v4l-utils [no]
259   --enable-libvidstab      enable video stabilization using vid.stab [no]
260   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
261   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
262   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
263                            native implementation exists [no]
264   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
265   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
266   --enable-libwebp         enable WebP encoding via libwebp [no]
267   --enable-libx264         enable H.264 encoding via x264 [no]
268   --enable-libx265         enable HEVC encoding via x265 [no]
269   --enable-libxavs         enable AVS encoding via xavs [no]
270   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
271   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
272   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
273   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
274   --enable-libxvid         enable Xvid encoding via xvidcore,
275                            native MPEG-4/Xvid encoder exists [no]
276   --enable-libzimg         enable z.lib, needed for zscale filter [no]
277   --enable-libzmq          enable message passing via libzmq [no]
278   --enable-libzvbi         enable teletext support via libzvbi [no]
279   --disable-lzma           disable lzma [autodetect]
280   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
281   --enable-mmal            enable decoding via MMAL [no]
282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
283   --enable-nvenc           enable NVIDIA NVENC support [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl            disable sdl [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --enable-x11grab         enable X11 grabbing (legacy) [no]
295   --disable-xlib           disable xlib [autodetect]
296   --disable-zlib           disable zlib [autodetect]
297
298 Toolchain options:
299   --arch=ARCH              select architecture [$arch]
300   --cpu=CPU                select the minimum required CPU (affects
301                            instruction selection, may crash on older CPUs)
302   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
303   --progs-suffix=SUFFIX    program name suffix []
304   --enable-cross-compile   assume a cross-compiler is used
305   --sysroot=PATH           root of cross-build tree
306   --sysinclude=PATH        location of cross-build system headers
307   --target-os=OS           compiler targets OS [$target_os]
308   --target-exec=CMD        command to run executables on target
309   --target-path=DIR        path to view of build directory on target
310   --target-samples=DIR     path to samples directory on target
311   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
312   --toolchain=NAME         set tool defaults according to NAME
313   --nm=NM                  use nm tool NM [$nm_default]
314   --ar=AR                  use archive tool AR [$ar_default]
315   --as=AS                  use assembler AS [$as_default]
316   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
317   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
318   --cc=CC                  use C compiler CC [$cc_default]
319   --cxx=CXX                use C compiler CXX [$cxx_default]
320   --objcc=OCC              use ObjC compiler OCC [$cc_default]
321   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
322   --ld=LD                  use linker LD [$ld_default]
323   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
324   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
325   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
326   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
327   --host-cc=HOSTCC         use host C compiler HOSTCC
328   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
329   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
330   --host-ld=HOSTLD         use host linker HOSTLD
331   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
332   --host-libs=HLIBS        use libs HLIBS when linking for host
333   --host-os=OS             compiler host OS [$target_os]
334   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
335   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
336   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
337   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
338   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
339   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
340   --extra-libs=ELIBS       add ELIBS [$ELIBS]
341   --extra-version=STRING   version string suffix []
342   --optflags=OPTFLAGS      override optimization-related compiler flags
343   --build-suffix=SUFFIX    library name suffix []
344   --enable-pic             build position-independent code
345   --enable-thumb           compile for Thumb instruction set
346   --enable-lto             use link-time optimization
347   --env="ENV=override"     override the environment variables
348
349 Advanced options (experts only):
350   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
351   --custom-allocator=NAME  use a supported custom allocator
352   --disable-symver         disable symbol versioning
353   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
354   --disable-safe-bitstream-reader
355                            disable buffer boundary checking in bitreaders
356                            (faster, but may crash)
357   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
358   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
359
360 Optimization options (experts only):
361   --disable-asm            disable all assembly optimizations
362   --disable-altivec        disable AltiVec optimizations
363   --disable-vsx            disable VSX optimizations
364   --disable-power8         disable POWER8 optimizations
365   --disable-amd3dnow       disable 3DNow! optimizations
366   --disable-amd3dnowext    disable 3DNow! extended optimizations
367   --disable-mmx            disable MMX optimizations
368   --disable-mmxext         disable MMXEXT optimizations
369   --disable-sse            disable SSE optimizations
370   --disable-sse2           disable SSE2 optimizations
371   --disable-sse3           disable SSE3 optimizations
372   --disable-ssse3          disable SSSE3 optimizations
373   --disable-sse4           disable SSE4 optimizations
374   --disable-sse42          disable SSE4.2 optimizations
375   --disable-avx            disable AVX optimizations
376   --disable-xop            disable XOP optimizations
377   --disable-fma3           disable FMA3 optimizations
378   --disable-fma4           disable FMA4 optimizations
379   --disable-avx2           disable AVX2 optimizations
380   --disable-aesni          disable AESNI optimizations
381   --disable-armv5te        disable armv5te optimizations
382   --disable-armv6          disable armv6 optimizations
383   --disable-armv6t2        disable armv6t2 optimizations
384   --disable-vfp            disable VFP optimizations
385   --disable-neon           disable NEON optimizations
386   --disable-inline-asm     disable use of inline assembly
387   --disable-yasm           disable use of nasm/yasm assembly
388   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
389   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
390   --disable-msa            disable MSA optimizations
391   --disable-mipsfpu        disable floating point MIPS optimizations
392   --disable-mmi            disable Loongson SIMD optimizations
393   --disable-fast-unaligned consider unaligned accesses slow
394
395 Developer options (useful when working on FFmpeg itself):
396   --disable-debug          disable debugging symbols
397   --enable-debug=LEVEL     set the debug level [$debuglevel]
398   --disable-optimizations  disable compiler optimizations
399   --enable-extra-warnings  enable more compiler warnings
400   --disable-stripping      disable stripping of executables and shared libraries
401   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
402                            2 causes a slowdown at runtime.
403   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
404   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
405                            leaks and errors, using the specified valgrind binary.
406                            Cannot be combined with --target-exec
407   --enable-ftrapv          Trap arithmetic overflows
408   --samples=PATH           location of test samples for FATE, if not set use
409                            \$FATE_SAMPLES at make invocation time.
410   --enable-neon-clobber-test check NEON registers for clobbering (should be
411                            used only for debugging purposes)
412   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
413                            should be used only for debugging purposes)
414   --enable-random          randomly enable/disable components
415   --disable-random
416   --enable-random=LIST     randomly enable/disable specific components or
417   --disable-random=LIST    component groups. LIST is a comma-separated list
418                            of NAME[:PROB] entries where NAME is a component
419                            (group) and PROB the probability associated with
420                            NAME (default 0.5).
421   --random-seed=VALUE      seed value for --enable/disable-random
422   --disable-valgrind-backtrace do not print a backtrace under Valgrind
423                            (only applies to --disable-optimizations builds)
424
425 NOTE: Object files are built at the place where configure is launched.
426 EOF
427   exit 0
428 }
429
430 quotes='""'
431 if test -t 1 && which tput >/dev/null 2>&1; then
432     ncolors=$(tput colors)
433     if test -n "$ncolors" && test $ncolors -ge 8; then
434         bold_color=$(tput bold)
435         warn_color=$(tput setaf 3)
436         error_color=$(tput setaf 1)
437         reset_color=$(tput sgr0)
438     fi
439     # 72 used instead of 80 since that's the default of pr
440     ncols=$(tput cols)
441 fi
442 : ${ncols:=72}
443
444 log(){
445     echo "$@" >> $logfile
446 }
447
448 log_file(){
449     log BEGIN $1
450     pr -n -t $1 >> $logfile
451     log END $1
452 }
453
454 warn(){
455     log "WARNING: $*"
456     WARNINGS="${WARNINGS}WARNING: $*\n"
457 }
458
459 die(){
460     log "$@"
461     echo "$error_color$bold_color$@$reset_color"
462     cat <<EOF
463
464 If you think configure made a mistake, make sure you are using the latest
465 version from Git.  If the latest version fails, report the problem to the
466 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
467 EOF
468     if disabled logging; then
469         cat <<EOF
470 Rerun configure with logging enabled (do not use --disable-logging), and
471 include the log this produces with your report.
472 EOF
473     else
474         cat <<EOF
475 Include the log file "$logfile" produced by configure as this will help
476 solve the problem.
477 EOF
478     fi
479     exit 1
480 }
481
482 # Avoid locale weirdness, besides we really just want to translate ASCII.
483 toupper(){
484     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
485 }
486
487 tolower(){
488     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
489 }
490
491 c_escape(){
492     echo "$*" | sed 's/["\\]/\\\0/g'
493 }
494
495 sh_quote(){
496     v=$(echo "$1" | sed "s/'/'\\\\''/g")
497     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
498     echo "$v"
499 }
500
501 cleanws(){
502     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
503 }
504
505 filter(){
506     pat=$1
507     shift
508     for v; do
509         eval "case $v in $pat) echo $v ;; esac"
510     done
511 }
512
513 filter_out(){
514     pat=$1
515     shift
516     for v; do
517         eval "case $v in $pat) ;; *) echo $v ;; esac"
518     done
519 }
520
521 map(){
522     m=$1
523     shift
524     for v; do eval $m; done
525 }
526
527 add_suffix(){
528     suffix=$1
529     shift
530     for v; do echo ${v}${suffix}; done
531 }
532
533 set_all(){
534     value=$1
535     shift
536     for var in $*; do
537         eval $var=$value
538     done
539 }
540
541 set_weak(){
542     value=$1
543     shift
544     for var; do
545         eval : \${$var:=$value}
546     done
547 }
548
549 sanitize_var_name(){
550     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
551 }
552
553 set_safe(){
554     var=$1
555     shift
556     eval $(sanitize_var_name "$var")='$*'
557 }
558
559 get_safe(){
560     eval echo \$$(sanitize_var_name "$1")
561 }
562
563 pushvar(){
564     for pvar in $*; do
565         eval level=\${${pvar}_level:=0}
566         eval ${pvar}_${level}="\$$pvar"
567         eval ${pvar}_level=$(($level+1))
568     done
569 }
570
571 popvar(){
572     for pvar in $*; do
573         eval level=\${${pvar}_level:-0}
574         test $level = 0 && continue
575         eval level=$(($level-1))
576         eval $pvar="\${${pvar}_${level}}"
577         eval ${pvar}_level=$level
578         eval unset ${pvar}_${level}
579     done
580 }
581
582 enable(){
583     set_all yes $*
584 }
585
586 disable(){
587     set_all no $*
588 }
589
590 enable_weak(){
591     set_weak yes $*
592 }
593
594 disable_weak(){
595     set_weak no $*
596 }
597
598 enable_safe(){
599     for var; do
600         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
601     done
602 }
603
604 disable_safe(){
605     for var; do
606         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
607     done
608 }
609
610 do_enable_deep(){
611     for var; do
612         enabled $var && continue
613         eval sel="\$${var}_select"
614         eval sgs="\$${var}_suggest"
615         pushvar var sgs
616         enable_deep $sel
617         popvar sgs
618         enable_deep_weak $sgs
619         popvar var
620     done
621 }
622
623 enable_deep(){
624     do_enable_deep $*
625     enable $*
626 }
627
628 enable_deep_weak(){
629     for var; do
630         disabled $var && continue
631         pushvar var
632         do_enable_deep $var
633         popvar var
634         enable_weak $var
635     done
636 }
637
638 enabled(){
639     test "${1#!}" = "$1" && op='=' || op=!=
640     eval test "x\$${1#!}" $op "xyes"
641 }
642
643 disabled(){
644     test "${1#!}" = "$1" && op='=' || op=!=
645     eval test "x\$${1#!}" $op "xno"
646 }
647
648 enabled_all(){
649     for opt; do
650         enabled $opt || return 1
651     done
652 }
653
654 disabled_all(){
655     for opt; do
656         disabled $opt || return 1
657     done
658 }
659
660 enabled_any(){
661     for opt; do
662         enabled $opt && return 0
663     done
664 }
665
666 disabled_any(){
667     for opt; do
668         disabled $opt && return 0
669     done
670     return 1
671 }
672
673 set_default(){
674     for opt; do
675         eval : \${$opt:=\$${opt}_default}
676     done
677 }
678
679 is_in(){
680     value=$1
681     shift
682     for var in $*; do
683         [ $var = $value ] && return 0
684     done
685     return 1
686 }
687
688 do_check_deps(){
689     for cfg; do
690         cfg="${cfg#!}"
691         enabled ${cfg}_checking && die "Circular dependency for $cfg."
692         disabled ${cfg}_checking && continue
693         enable ${cfg}_checking
694         append allopts $cfg
695
696         eval dep_all="\$${cfg}_deps"
697         eval dep_any="\$${cfg}_deps_any"
698         eval dep_sel="\$${cfg}_select"
699         eval dep_sgs="\$${cfg}_suggest"
700         eval dep_ifa="\$${cfg}_if"
701         eval dep_ifn="\$${cfg}_if_any"
702
703         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
704         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
705         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
706
707         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
708         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
709         enabled_all  $dep_all || disable $cfg
710         enabled_any  $dep_any || disable $cfg
711         disabled_any $dep_sel && disable $cfg
712
713         if enabled $cfg; then
714             enable_deep $dep_sel
715             enable_deep_weak $dep_sgs
716         fi
717
718         disable ${cfg}_checking
719     done
720 }
721
722 check_deps(){
723     unset allopts
724
725     do_check_deps "$@"
726
727     for cfg in $allopts; do
728         enabled $cfg || continue
729         eval dep_extralibs="\$${cfg}_extralibs"
730         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
731     done
732 }
733
734 print_config(){
735     pfx=$1
736     files=$2
737     shift 2
738     map 'eval echo "$v \${$v:-no}"' "$@" |
739     awk "BEGIN { split(\"$files\", files) }
740         {
741             c = \"$pfx\" toupper(\$1);
742             v = \$2;
743             sub(/yes/, 1, v);
744             sub(/no/,  0, v);
745             for (f in files) {
746                 file = files[f];
747                 if (file ~ /\\.h\$/) {
748                     printf(\"#define %s %d\\n\", c, v) >>file;
749                 } else if (file ~ /\\.asm\$/) {
750                     printf(\"%%define %s %d\\n\", c, v) >>file;
751                 } else if (file ~ /\\.mak\$/) {
752                     n = -v ? \"\" : \"!\";
753                     printf(\"%s%s=yes\\n\", n, c) >>file;
754                 } else if (file ~ /\\.texi\$/) {
755                     pre = -v ? \"\" : \"@c \";
756                     yesno = \$2;
757                     c2 = tolower(c);
758                     gsub(/_/, \"-\", c2);
759                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
760                 }
761             }
762         }"
763 }
764
765 print_enabled(){
766     suf=$1
767     shift
768     for v; do
769         enabled $v && printf "%s\n" ${v%$suf};
770     done
771 }
772
773 append(){
774     var=$1
775     shift
776     eval "$var=\"\$$var $*\""
777 }
778
779 prepend(){
780     var=$1
781     shift
782     eval "$var=\"$* \$$var\""
783 }
784
785 unique(){
786     var=$1
787     uniq_list=""
788     for tok in $(eval echo \$$var); do
789         uniq_list="$(filter_out $tok $uniq_list) $tok"
790     done
791     eval "$var=\"${uniq_list}\""
792 }
793
794 add_cppflags(){
795     append CPPFLAGS "$@"
796 }
797
798 add_cflags(){
799     append CFLAGS $($cflags_filter "$@")
800 }
801
802 add_cxxflags(){
803     append CXXFLAGS $($cflags_filter "$@")
804 }
805
806 add_asflags(){
807     append ASFLAGS $($asflags_filter "$@")
808 }
809
810 add_objcflags(){
811     append OBJCFLAGS $($objcflags_filter "$@")
812 }
813
814 add_ldflags(){
815     append LDFLAGS $($ldflags_filter "$@")
816 }
817
818 add_ldexeflags(){
819     append LDEXEFLAGS $($ldflags_filter "$@")
820 }
821
822 add_ldlibflags(){
823     append LDLIBFLAGS $($ldflags_filter "$@")
824 }
825
826 add_stripflags(){
827     append ASMSTRIPFLAGS "$@"
828 }
829
830 add_extralibs(){
831     prepend extralibs $($ldflags_filter "$@")
832 }
833
834 add_host_cppflags(){
835     append host_cppflags "$@"
836 }
837
838 add_host_cflags(){
839     append host_cflags $($host_cflags_filter "$@")
840 }
841
842 add_host_ldflags(){
843     append host_ldflags $($host_ldflags_filter "$@")
844 }
845
846 add_compat(){
847     append compat_objs $1
848     shift
849     map 'add_cppflags -D$v' "$@"
850 }
851
852 check_cmd(){
853     log "$@"
854     "$@" >> $logfile 2>&1
855 }
856
857 check_stat(){
858     log check_stat "$@"
859     stat "$1" >> $logfile 2>&1
860 }
861
862 cc_o(){
863     eval printf '%s\\n' $CC_O
864 }
865
866 cc_e(){
867     eval printf '%s\\n' $CC_E
868 }
869
870 check_cc(){
871     log check_cc "$@"
872     cat > $TMPC
873     log_file $TMPC
874     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
875 }
876
877 check_cxx(){
878     log check_cxx "$@"
879     cat > $TMPCPP
880     log_file $TMPCPP
881     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
882 }
883
884 check_objcc(){
885     log check_objcc "$@"
886     cat > $TMPM
887     log_file $TMPM
888     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
889 }
890
891 check_cpp(){
892     log check_cpp "$@"
893     cat > $TMPC
894     log_file $TMPC
895     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
896 }
897
898 as_o(){
899     eval printf '%s\\n' $AS_O
900 }
901
902 check_as(){
903     log check_as "$@"
904     cat > $TMPS
905     log_file $TMPS
906     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
907 }
908
909 check_inline_asm(){
910     log check_inline_asm "$@"
911     name="$1"
912     code="$2"
913     shift 2
914     disable $name
915     check_cc "$@" <<EOF && enable $name
916 void foo(void){ __asm__ volatile($code); }
917 EOF
918 }
919
920 check_insn(){
921     log check_insn "$@"
922     check_inline_asm ${1}_inline "\"$2\""
923     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
924 }
925
926 check_yasm(){
927     log check_yasm "$@"
928     echo "$1" > $TMPS
929     log_file $TMPS
930     shift 1
931     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
932 }
933
934 ld_o(){
935     eval printf '%s\\n' $LD_O
936 }
937
938 check_ld(){
939     log check_ld "$@"
940     type=$1
941     shift 1
942     flags=$(filter_out '-l*|*.so' $@)
943     libs=$(filter '-l*|*.so' $@)
944     check_$type $($cflags_filter $flags) || return
945     flags=$($ldflags_filter $flags)
946     libs=$($ldflags_filter $libs)
947     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
948 }
949
950 print_include(){
951     hdr=$1
952     test "${hdr%.h}" = "${hdr}" &&
953         echo "#include $hdr"    ||
954         echo "#include <$hdr>"
955 }
956
957 check_code(){
958     log check_code "$@"
959     check=$1
960     headers=$2
961     code=$3
962     shift 3
963     {
964         for hdr in $headers; do
965             print_include $hdr
966         done
967         echo "int main(void) { $code; return 0; }"
968     } | check_$check "$@"
969 }
970
971 check_cppflags(){
972     log check_cppflags "$@"
973     check_cc "$@" <<EOF && append CPPFLAGS "$@"
974 int x;
975 EOF
976 }
977
978 test_cflags(){
979     log test_cflags "$@"
980     set -- $($cflags_filter "$@")
981     check_cc "$@" <<EOF
982 int x;
983 EOF
984 }
985
986 check_cflags(){
987     log check_cflags "$@"
988     test_cflags "$@" && add_cflags "$@"
989 }
990
991 check_cxxflags(){
992     log check_cxxflags "$@"
993     set -- $($cflags_filter "$@")
994     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
995 int x;
996 EOF
997 }
998
999 test_objcflags(){
1000     log test_cflags "$@"
1001     set -- $($cflags_filter "$@")
1002     check_objcc "$@" <<EOF
1003 int x;
1004 EOF
1005 }
1006
1007 check_objcflags(){
1008     log check_cflags "$@"
1009     test_objcflags "$@" && add_objcflags "$@"
1010 }
1011
1012 test_ldflags(){
1013     log test_ldflags "$@"
1014     check_ld "cc" "$@" <<EOF
1015 int main(void){ return 0; }
1016 EOF
1017 }
1018
1019 check_ldflags(){
1020     log check_ldflags "$@"
1021     test_ldflags "$@" && add_ldflags "$@"
1022 }
1023
1024 test_stripflags(){
1025     log test_stripflags "$@"
1026     # call check_cc to get a fresh TMPO
1027     check_cc <<EOF
1028 int main(void) { return 0; }
1029 EOF
1030     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1031 }
1032
1033 check_stripflags(){
1034     log check_stripflags "$@"
1035     test_stripflags "$@" && add_stripflags "$@"
1036 }
1037
1038 check_header(){
1039     log check_header "$@"
1040     header=$1
1041     shift
1042     disable_safe $header
1043     check_cpp "$@" <<EOF && enable_safe $header
1044 #include <$header>
1045 int x;
1046 EOF
1047 }
1048
1049 check_header_objcc(){
1050     log check_header_objcc "$@"
1051     rm -f -- "$TMPO"
1052     header=$1
1053     shift
1054     disable_safe $header
1055     {
1056        echo "#include <$header>"
1057        echo "int main(void) { return 0; }"
1058     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1059 }
1060
1061 check_func(){
1062     log check_func "$@"
1063     func=$1
1064     shift
1065     disable $func
1066     check_ld "cc" "$@" <<EOF && enable $func
1067 extern int $func();
1068 int main(void){ $func(); }
1069 EOF
1070 }
1071
1072 check_complexfunc(){
1073     log check_complexfunc "$@"
1074     func=$1
1075     narg=$2
1076     shift 2
1077     test $narg = 2 && args="f, g" || args="f * I"
1078     disable $func
1079     check_ld "cc" "$@" <<EOF && enable $func
1080 #include <complex.h>
1081 #include <math.h>
1082 float foo(complex float f, complex float g) { return $func($args); }
1083 int main(void){ return (int) foo; }
1084 EOF
1085 }
1086
1087 check_mathfunc(){
1088     log check_mathfunc "$@"
1089     func=$1
1090     narg=$2
1091     shift 2
1092     test $narg = 2 && args="f, g" || args="f"
1093     disable $func
1094     check_ld "cc" "$@" <<EOF && enable $func
1095 #include <math.h>
1096 float foo(float f, float g) { return $func($args); }
1097 int main(void){ return (int) foo; }
1098 EOF
1099 }
1100
1101 check_func_headers(){
1102     log check_func_headers "$@"
1103     headers=$1
1104     funcs=$2
1105     shift 2
1106     {
1107         for hdr in $headers; do
1108             print_include $hdr
1109         done
1110         for func in $funcs; do
1111             echo "long check_$func(void) { return (long) $func; }"
1112         done
1113         echo "int main(void) { return 0; }"
1114     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1115 }
1116
1117 check_class_headers_cpp(){
1118     log check_class_headers_cpp "$@"
1119     headers=$1
1120     classes=$2
1121     shift 2
1122     {
1123         for hdr in $headers; do
1124             echo "#include <$hdr>"
1125         done
1126         echo "int main(void) { "
1127         i=1
1128         for class in $classes; do
1129             echo "$class obj$i;"
1130             i=$(expr $i + 1)
1131         done
1132         echo "return 0; }"
1133     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1134 }
1135
1136 check_cpp_condition(){
1137     log check_cpp_condition "$@"
1138     header=$1
1139     condition=$2
1140     shift 2
1141     check_cpp "$@" <<EOF
1142 #include <$header>
1143 #if !($condition)
1144 #error "unsatisfied condition: $condition"
1145 #endif
1146 EOF
1147 }
1148
1149 check_lib(){
1150     log check_lib "$@"
1151     header="$1"
1152     func="$2"
1153     shift 2
1154     check_header $header && check_func $func "$@" && add_extralibs "$@"
1155 }
1156
1157 check_lib2(){
1158     log check_lib2 "$@"
1159     headers="$1"
1160     funcs="$2"
1161     shift 2
1162     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1163 }
1164
1165 check_lib_cpp(){
1166     log check_lib_cpp "$@"
1167     headers="$1"
1168     classes="$2"
1169     shift 2
1170     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1171 }
1172
1173 check_pkg_config(){
1174     log check_pkg_config "$@"
1175     pkgandversion="$1"
1176     pkg="${1%% *}"
1177     headers="$2"
1178     funcs="$3"
1179     shift 3
1180     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1181     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1182     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1183     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1184         set_safe "${pkg}_cflags" $pkg_cflags   &&
1185         set_safe "${pkg}_libs"   $pkg_libs
1186 }
1187
1188 check_exec(){
1189     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1190 }
1191
1192 check_exec_crash(){
1193     code=$(cat)
1194
1195     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1196     # are safe but may not be available everywhere.  Thus we use
1197     # raise(SIGTERM) instead.  The check is run in a subshell so we
1198     # can redirect the "Terminated" message from the shell.  SIGBUS
1199     # is not defined by standard C so it is used conditionally.
1200
1201     (check_exec "$@") >> $logfile 2>&1 <<EOF
1202 #include <signal.h>
1203 static void sighandler(int sig){
1204     raise(SIGTERM);
1205 }
1206 int foo(void){
1207     $code
1208 }
1209 int (*func_ptr)(void) = foo;
1210 int main(void){
1211     signal(SIGILL, sighandler);
1212     signal(SIGFPE, sighandler);
1213     signal(SIGSEGV, sighandler);
1214 #ifdef SIGBUS
1215     signal(SIGBUS, sighandler);
1216 #endif
1217     return func_ptr();
1218 }
1219 EOF
1220 }
1221
1222 check_type(){
1223     log check_type "$@"
1224     headers=$1
1225     type=$2
1226     shift 2
1227     disable_safe "$type"
1228     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1229 }
1230
1231 check_struct(){
1232     log check_struct "$@"
1233     headers=$1
1234     struct=$2
1235     member=$3
1236     shift 3
1237     disable_safe "${struct}_${member}"
1238     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1239         enable_safe "${struct}_${member}"
1240 }
1241
1242 check_builtin(){
1243     log check_builtin "$@"
1244     name=$1
1245     headers=$2
1246     builtin=$3
1247     shift 3
1248     disable "$name"
1249     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1250 }
1251
1252 check_compile_assert(){
1253     log check_compile_assert "$@"
1254     name=$1
1255     headers=$2
1256     condition=$3
1257     shift 3
1258     disable "$name"
1259     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1260 }
1261
1262 require(){
1263     name="$1"
1264     header="$2"
1265     func="$3"
1266     shift 3
1267     check_lib $header $func "$@" || die "ERROR: $name not found"
1268 }
1269
1270 require2(){
1271     name="$1"
1272     headers="$2"
1273     func="$3"
1274     shift 3
1275     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1276 }
1277
1278 require_cpp(){
1279     name="$1"
1280     headers="$2"
1281     classes="$3"
1282     shift 3
1283     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1284 }
1285
1286 use_pkg_config(){
1287     pkg="$1"
1288     check_pkg_config "$@" || return 1
1289     add_cflags    $(get_safe "${pkg}_cflags")
1290     add_extralibs $(get_safe "${pkg}_libs")
1291 }
1292
1293 require_pkg_config(){
1294     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1295 }
1296
1297 require_libfreetype(){
1298     log require_libfreetype "$@"
1299     pkg="freetype2"
1300     check_cmd $pkg_config --exists --print-errors $pkg \
1301       || die "ERROR: $pkg not found"
1302     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1303     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1304     {
1305         echo "#include <ft2build.h>"
1306         echo "#include FT_FREETYPE_H"
1307         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1308         echo "int main(void) { return 0; }"
1309     } | check_ld "cc" $pkg_cflags $pkg_libs \
1310       && set_safe "${pkg}_cflags" $pkg_cflags \
1311       && set_safe "${pkg}_libs"   $pkg_libs \
1312       || die "ERROR: $pkg not found"
1313     add_cflags    $(get_safe "${pkg}_cflags")
1314     add_extralibs $(get_safe "${pkg}_libs")
1315 }
1316
1317 hostcc_e(){
1318     eval printf '%s\\n' $HOSTCC_E
1319 }
1320
1321 hostcc_o(){
1322     eval printf '%s\\n' $HOSTCC_O
1323 }
1324
1325 check_host_cc(){
1326     log check_host_cc "$@"
1327     cat > $TMPC
1328     log_file $TMPC
1329     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1330 }
1331
1332 check_host_cpp(){
1333     log check_host_cpp "$@"
1334     cat > $TMPC
1335     log_file $TMPC
1336     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1337 }
1338
1339 check_host_cppflags(){
1340     log check_host_cppflags "$@"
1341     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1342 int x;
1343 EOF
1344 }
1345
1346 check_host_cflags(){
1347     log check_host_cflags "$@"
1348     set -- $($host_cflags_filter "$@")
1349     check_host_cc "$@" <<EOF && append host_cflags "$@"
1350 int x;
1351 EOF
1352 }
1353
1354 check_host_cpp_condition(){
1355     log check_host_cpp_condition "$@"
1356     header=$1
1357     condition=$2
1358     shift 2
1359     check_host_cpp "$@" <<EOF
1360 #include <$header>
1361 #if !($condition)
1362 #error "unsatisfied condition: $condition"
1363 #endif
1364 EOF
1365 }
1366
1367 cp_if_changed(){
1368     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1369     mkdir -p "$(dirname $2)"
1370     $cp_f "$1" "$2"
1371 }
1372
1373 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1374 # system-dependent things.
1375
1376 AVCODEC_COMPONENTS="
1377     bsfs
1378     decoders
1379     encoders
1380     hwaccels
1381     parsers
1382 "
1383
1384 AVDEVICE_COMPONENTS="
1385     indevs
1386     outdevs
1387 "
1388 AVFILTER_COMPONENTS="
1389     filters
1390 "
1391 AVFORMAT_COMPONENTS="
1392     demuxers
1393     muxers
1394     protocols
1395 "
1396
1397 AVRESAMPLE_COMPONENTS=""
1398 AVUTIL_COMPONENTS=""
1399
1400 COMPONENT_LIST="
1401     $AVCODEC_COMPONENTS
1402     $AVDEVICE_COMPONENTS
1403     $AVFILTER_COMPONENTS
1404     $AVFORMAT_COMPONENTS
1405     $AVRESAMPLE_COMPONENTS
1406     $AVUTIL_COMPONENTS
1407 "
1408
1409 EXAMPLE_LIST="
1410     avio_reading_example
1411     avio_dir_cmd_example
1412     decoding_encoding_example
1413     demuxing_decoding_example
1414     extract_mvs_example
1415     filter_audio_example
1416     filtering_audio_example
1417     filtering_video_example
1418     metadata_example
1419     muxing_example
1420     qsvdec_example
1421     remuxing_example
1422     resampling_audio_example
1423     scaling_video_example
1424     transcode_aac_example
1425     transcoding_example
1426 "
1427
1428 EXTERNAL_LIBRARY_LIST="
1429     avisynth
1430     bzlib
1431     chromaprint
1432     crystalhd
1433     decklink
1434     frei0r
1435     gcrypt
1436     gmp
1437     gnutls
1438     iconv
1439     ladspa
1440     libaacplus
1441     libass
1442     libbluray
1443     libbs2b
1444     libcaca
1445     libcdio
1446     libcelt
1447     libdc1394
1448     libdcadec
1449     libfaac
1450     libfdk_aac
1451     libflite
1452     libfontconfig
1453     libfreetype
1454     libfribidi
1455     libgme
1456     libgsm
1457     libiec61883
1458     libilbc
1459     libkvazaar
1460     libmfx
1461     libmodplug
1462     libmp3lame
1463     libnut
1464     libopencore_amrnb
1465     libopencore_amrwb
1466     libopencv
1467     libopenh264
1468     libopenjpeg
1469     libopus
1470     libpulse
1471     libquvi
1472     librtmp
1473     librubberband
1474     libschroedinger
1475     libshine
1476     libsmbclient
1477     libsnappy
1478     libsoxr
1479     libspeex
1480     libssh
1481     libstagefright_h264
1482     libtesseract
1483     libtheora
1484     libtwolame
1485     libutvideo
1486     libv4l2
1487     libvidstab
1488     libvo_aacenc
1489     libvo_amrwbenc
1490     libvorbis
1491     libvpx
1492     libwavpack
1493     libwebp
1494     libx264
1495     libx265
1496     libxavs
1497     libxcb
1498     libxcb_shm
1499     libxcb_shape
1500     libxcb_xfixes
1501     libxvid
1502     libzimg
1503     libzmq
1504     libzvbi
1505     lzma
1506     mmal
1507     netcdf
1508     nvenc
1509     openal
1510     opencl
1511     opengl
1512     openssl
1513     schannel
1514     sdl
1515     securetransport
1516     x11grab
1517     xlib
1518     zlib
1519 "
1520
1521 DOCUMENT_LIST="
1522     doc
1523     htmlpages
1524     manpages
1525     podpages
1526     txtpages
1527 "
1528
1529 FEATURE_LIST="
1530     ftrapv
1531     gray
1532     hardcoded_tables
1533     runtime_cpudetect
1534     safe_bitstream_reader
1535     shared
1536     small
1537     static
1538     swscale_alpha
1539 "
1540
1541 HWACCEL_LIST="
1542     d3d11va
1543     dxva2
1544     vaapi
1545     vda
1546     vdpau
1547     videotoolbox
1548     xvmc
1549 "
1550
1551 LIBRARY_LIST="
1552     avcodec
1553     avdevice
1554     avfilter
1555     avformat
1556     avresample
1557     avutil
1558     postproc
1559     swresample
1560     swscale
1561 "
1562
1563 LICENSE_LIST="
1564     gpl
1565     nonfree
1566     version3
1567 "
1568
1569 PROGRAM_LIST="
1570     ffplay
1571     ffprobe
1572     ffserver
1573     ffmpeg
1574 "
1575
1576 SUBSYSTEM_LIST="
1577     dct
1578     dwt
1579     error_resilience
1580     faan
1581     fast_unaligned
1582     fft
1583     lsp
1584     lzo
1585     mdct
1586     pixelutils
1587     network
1588     rdft
1589 "
1590
1591 CONFIG_LIST="
1592     $COMPONENT_LIST
1593     $DOCUMENT_LIST
1594     $EXAMPLE_LIST
1595     $EXTERNAL_LIBRARY_LIST
1596     $FEATURE_LIST
1597     $HWACCEL_LIST
1598     $LICENSE_LIST
1599     $LIBRARY_LIST
1600     $PROGRAM_LIST
1601     $SUBSYSTEM_LIST
1602     fontconfig
1603     incompatible_libav_abi
1604     memalign_hack
1605     memory_poisoning
1606     neon_clobber_test
1607     pic
1608     pod2man
1609     raise_major
1610     thumb
1611     valgrind_backtrace
1612     xmm_clobber_test
1613 "
1614
1615 THREADS_LIST="
1616     pthreads
1617     os2threads
1618     w32threads
1619 "
1620
1621 ATOMICS_LIST="
1622     atomics_gcc
1623     atomics_suncc
1624     atomics_win32
1625 "
1626
1627 ARCH_LIST="
1628     aarch64
1629     alpha
1630     arm
1631     avr32
1632     avr32_ap
1633     avr32_uc
1634     bfin
1635     ia64
1636     m68k
1637     mips
1638     mips64
1639     parisc
1640     ppc
1641     ppc64
1642     s390
1643     sh4
1644     sparc
1645     sparc64
1646     tilegx
1647     tilepro
1648     tomi
1649     x86
1650     x86_32
1651     x86_64
1652 "
1653
1654 ARCH_EXT_LIST_ARM="
1655     armv5te
1656     armv6
1657     armv6t2
1658     armv8
1659     neon
1660     vfp
1661     vfpv3
1662     setend
1663 "
1664
1665 ARCH_EXT_LIST_MIPS="
1666     mipsfpu
1667     mips32r2
1668     mips64r2
1669     mips64r6
1670     mipsdsp
1671     mipsdspr2
1672     msa
1673 "
1674
1675 ARCH_EXT_LIST_LOONGSON="
1676     loongson2
1677     loongson3
1678     mmi
1679 "
1680
1681 ARCH_EXT_LIST_X86_SIMD="
1682     aesni
1683     amd3dnow
1684     amd3dnowext
1685     avx
1686     avx2
1687     fma3
1688     fma4
1689     mmx
1690     mmxext
1691     sse
1692     sse2
1693     sse3
1694     sse4
1695     sse42
1696     ssse3
1697     xop
1698 "
1699
1700 ARCH_EXT_LIST_PPC="
1701     altivec
1702     dcbzl
1703     ldbrx
1704     power8
1705     ppc4xx
1706     vsx
1707 "
1708
1709 ARCH_EXT_LIST_X86="
1710     $ARCH_EXT_LIST_X86_SIMD
1711     cpunop
1712     i686
1713 "
1714
1715 ARCH_EXT_LIST="
1716     $ARCH_EXT_LIST_ARM
1717     $ARCH_EXT_LIST_PPC
1718     $ARCH_EXT_LIST_X86
1719     $ARCH_EXT_LIST_MIPS
1720     $ARCH_EXT_LIST_LOONGSON
1721 "
1722
1723 ARCH_FEATURES="
1724     aligned_stack
1725     fast_64bit
1726     fast_clz
1727     fast_cmov
1728     local_aligned_8
1729     local_aligned_16
1730     local_aligned_32
1731     simd_align_16
1732 "
1733
1734 BUILTIN_LIST="
1735     atomic_cas_ptr
1736     atomic_compare_exchange
1737     machine_rw_barrier
1738     MemoryBarrier
1739     mm_empty
1740     rdtsc
1741     sarestart
1742     sync_val_compare_and_swap
1743 "
1744 HAVE_LIST_CMDLINE="
1745     inline_asm
1746     symver
1747     yasm
1748 "
1749
1750 HAVE_LIST_PUB="
1751     bigendian
1752     fast_unaligned
1753     incompatible_libav_abi
1754 "
1755
1756 HEADERS_LIST="
1757     alsa_asoundlib_h
1758     altivec_h
1759     arpa_inet_h
1760     asm_types_h
1761     cdio_paranoia_h
1762     cdio_paranoia_paranoia_h
1763     dev_bktr_ioctl_bt848_h
1764     dev_bktr_ioctl_meteor_h
1765     dev_ic_bt8xx_h
1766     dev_video_bktr_ioctl_bt848_h
1767     dev_video_meteor_ioctl_meteor_h
1768     direct_h
1769     dirent_h
1770     dlfcn_h
1771     d3d11_h
1772     dxva_h
1773     ES2_gl_h
1774     gsm_h
1775     io_h
1776     mach_mach_time_h
1777     machine_ioctl_bt848_h
1778     machine_ioctl_meteor_h
1779     malloc_h
1780     openjpeg_1_5_openjpeg_h
1781     OpenGL_gl3_h
1782     poll_h
1783     sndio_h
1784     soundcard_h
1785     sys_mman_h
1786     sys_param_h
1787     sys_resource_h
1788     sys_select_h
1789     sys_soundcard_h
1790     sys_time_h
1791     sys_un_h
1792     sys_videoio_h
1793     termios_h
1794     udplite_h
1795     unistd_h
1796     valgrind_valgrind_h
1797     windows_h
1798     winsock2_h
1799 "
1800
1801 INTRINSICS_LIST="
1802     intrinsics_neon
1803 "
1804
1805 COMPLEX_FUNCS="
1806     cabs
1807     cexp
1808 "
1809
1810 MATH_FUNCS="
1811     atanf
1812     atan2f
1813     cbrt
1814     cbrtf
1815     copysign
1816     cosf
1817     erf
1818     exp2
1819     exp2f
1820     expf
1821     hypot
1822     isinf
1823     isnan
1824     ldexpf
1825     llrint
1826     llrintf
1827     log2
1828     log2f
1829     log10f
1830     lrint
1831     lrintf
1832     powf
1833     rint
1834     round
1835     roundf
1836     sinf
1837     trunc
1838     truncf
1839 "
1840
1841 SYSTEM_FUNCS="
1842     access
1843     aligned_malloc
1844     arc4random
1845     clock_gettime
1846     closesocket
1847     CommandLineToArgvW
1848     CoTaskMemFree
1849     CryptGenRandom
1850     dlopen
1851     fcntl
1852     flt_lim
1853     fork
1854     getaddrinfo
1855     gethrtime
1856     getopt
1857     GetProcessAffinityMask
1858     GetProcessMemoryInfo
1859     GetProcessTimes
1860     getrusage
1861     GetSystemTimeAsFileTime
1862     gettimeofday
1863     glob
1864     glXGetProcAddress
1865     gmtime_r
1866     inet_aton
1867     isatty
1868     jack_port_get_latency_range
1869     kbhit
1870     localtime_r
1871     lstat
1872     lzo1x_999_compress
1873     mach_absolute_time
1874     MapViewOfFile
1875     memalign
1876     mkstemp
1877     mmap
1878     mprotect
1879     nanosleep
1880     PeekNamedPipe
1881     posix_memalign
1882     pthread_cancel
1883     sched_getaffinity
1884     SetConsoleTextAttribute
1885     SetConsoleCtrlHandler
1886     setmode
1887     setrlimit
1888     Sleep
1889     strerror_r
1890     sysconf
1891     sysctl
1892     usleep
1893     UTGetOSTypeFromString
1894     VirtualAlloc
1895     wglGetProcAddress
1896 "
1897
1898 TOOLCHAIN_FEATURES="
1899     as_dn_directive
1900     as_func
1901     as_object_arch
1902     asm_mod_q
1903     attribute_may_alias
1904     attribute_packed
1905     ebp_available
1906     ebx_available
1907     gnu_as
1908     gnu_windres
1909     ibm_asm
1910     inline_asm_labels
1911     inline_asm_nonlocal_labels
1912     inline_asm_direct_symbol_refs
1913     pragma_deprecated
1914     rsync_contimeout
1915     symver_asm_label
1916     symver_gnu_asm
1917     vfp_args
1918     xform_asm
1919     xmm_clobbers
1920 "
1921
1922 TYPES_LIST="
1923     CONDITION_VARIABLE_Ptr
1924     socklen_t
1925     struct_addrinfo
1926     struct_group_source_req
1927     struct_ip_mreq_source
1928     struct_ipv6_mreq
1929     struct_pollfd
1930     struct_rusage_ru_maxrss
1931     struct_sctp_event_subscribe
1932     struct_sockaddr_in6
1933     struct_sockaddr_sa_len
1934     struct_sockaddr_storage
1935     struct_stat_st_mtim_tv_nsec
1936     struct_v4l2_frmivalenum_discrete
1937 "
1938
1939 HAVE_LIST="
1940     $ARCH_EXT_LIST
1941     $(add_suffix _external $ARCH_EXT_LIST)
1942     $(add_suffix _inline   $ARCH_EXT_LIST)
1943     $ARCH_FEATURES
1944     $ATOMICS_LIST
1945     $BUILTIN_LIST
1946     $COMPLEX_FUNCS
1947     $HAVE_LIST_CMDLINE
1948     $HAVE_LIST_PUB
1949     $HEADERS_LIST
1950     $INTRINSICS_LIST
1951     $MATH_FUNCS
1952     $SYSTEM_FUNCS
1953     $THREADS_LIST
1954     $TOOLCHAIN_FEATURES
1955     $TYPES_LIST
1956     atomics_native
1957     dos_paths
1958     dxva2api_cobj
1959     dxva2_lib
1960     winrt
1961     libc_msvcrt
1962     libdc1394_1
1963     libdc1394_2
1964     makeinfo
1965     makeinfo_html
1966     perl
1967     pod2man
1968     sdl
1969     section_data_rel_ro
1970     texi2html
1971     threads
1972     vaapi_x11
1973     vdpau_x11
1974     xlib
1975 "
1976
1977 # options emitted with CONFIG_ prefix but not available on the command line
1978 CONFIG_EXTRA="
1979     aandcttables
1980     ac3dsp
1981     audio_frame_queue
1982     audiodsp
1983     blockdsp
1984     bswapdsp
1985     cabac
1986     dirac_parse
1987     dvprofile
1988     exif
1989     faandct
1990     faanidct
1991     fdctdsp
1992     flacdsp
1993     fmtconvert
1994     frame_thread_encoder
1995     g722dsp
1996     golomb
1997     gplv3
1998     h263dsp
1999     h264chroma
2000     h264dsp
2001     h264pred
2002     h264qpel
2003     hpeldsp
2004     huffman
2005     huffyuvdsp
2006     huffyuvencdsp
2007     idctdsp
2008     iirfilter
2009     imdct15
2010     intrax8
2011     ividsp
2012     jpegtables
2013     libx262
2014     lgplv3
2015     llauddsp
2016     llviddsp
2017     lpc
2018     lzf
2019     me_cmp
2020     mpeg_er
2021     mpegaudio
2022     mpegaudiodsp
2023     mpegvideo
2024     mpegvideoenc
2025     mss34dsp
2026     pixblockdsp
2027     qpeldsp
2028     qsv
2029     qsvdec
2030     qsvenc
2031     rangecoder
2032     riffdec
2033     riffenc
2034     rtpdec
2035     rtpenc_chain
2036     rv34dsp
2037     sinewin
2038     snappy
2039     startcode
2040     texturedsp
2041     texturedspenc
2042     tpeldsp
2043     videodsp
2044     vp3dsp
2045     vp56dsp
2046     vp8dsp
2047     wma_freqs
2048     wmv2dsp
2049 "
2050
2051 CMDLINE_SELECT="
2052     $ARCH_EXT_LIST
2053     $CONFIG_LIST
2054     $HAVE_LIST_CMDLINE
2055     $THREADS_LIST
2056     asm
2057     cross_compile
2058     debug
2059     extra_warnings
2060     logging
2061     lto
2062     optimizations
2063     rpath
2064     stripping
2065 "
2066
2067 PATHS_LIST="
2068     bindir
2069     datadir
2070     docdir
2071     incdir
2072     libdir
2073     mandir
2074     pkgconfigdir
2075     prefix
2076     shlibdir
2077 "
2078
2079 CMDLINE_SET="
2080     $PATHS_LIST
2081     ar
2082     arch
2083     as
2084     assert_level
2085     build_suffix
2086     cc
2087     objcc
2088     cpu
2089     cross_prefix
2090     custom_allocator
2091     cxx
2092     dep_cc
2093     doxygen
2094     env
2095     extra_version
2096     gas
2097     host_cc
2098     host_cflags
2099     host_ld
2100     host_ldflags
2101     host_libs
2102     host_os
2103     install
2104     ld
2105     logfile
2106     malloc_prefix
2107     nm
2108     optflags
2109     pkg_config
2110     pkg_config_flags
2111     progs_suffix
2112     random_seed
2113     ranlib
2114     samples
2115     strip
2116     sws_max_filter_size
2117     sysinclude
2118     sysroot
2119     target_exec
2120     target_os
2121     target_path
2122     target_samples
2123     tempprefix
2124     toolchain
2125     valgrind
2126     yasmexe
2127 "
2128
2129 CMDLINE_APPEND="
2130     extra_cflags
2131     extra_cxxflags
2132     extra_objcflags
2133     host_cppflags
2134 "
2135
2136 # code dependency declarations
2137
2138 # architecture extensions
2139
2140 armv5te_deps="arm"
2141 armv6_deps="arm"
2142 armv6t2_deps="arm"
2143 armv8_deps="aarch64"
2144 neon_deps_any="aarch64 arm"
2145 intrinsics_neon_deps="neon"
2146 vfp_deps_any="aarch64 arm"
2147 vfpv3_deps="vfp"
2148 setend_deps="arm"
2149
2150 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2151
2152 mipsfpu_deps="mips"
2153 mipsdsp_deps="mips"
2154 mipsdspr2_deps="mips"
2155 mips32r2_deps="mips"
2156 mips64r2_deps="mips"
2157 mips64r6_deps="mips"
2158 msa_deps="mips"
2159 mmi_deps="mips"
2160
2161 altivec_deps="ppc"
2162 dcbzl_deps="ppc"
2163 ldbrx_deps="ppc"
2164 ppc4xx_deps="ppc"
2165 vsx_deps="altivec"
2166 power8_deps="vsx"
2167
2168 cpunop_deps="i686"
2169 x86_64_select="i686"
2170 x86_64_suggest="fast_cmov"
2171
2172 amd3dnow_deps="mmx"
2173 amd3dnowext_deps="amd3dnow"
2174 i686_deps="x86"
2175 mmx_deps="x86"
2176 mmxext_deps="mmx"
2177 sse_deps="mmxext"
2178 sse2_deps="sse"
2179 sse3_deps="sse2"
2180 ssse3_deps="sse3"
2181 sse4_deps="ssse3"
2182 sse42_deps="sse4"
2183 aesni_deps="sse42"
2184 avx_deps="sse42"
2185 xop_deps="avx"
2186 fma3_deps="avx"
2187 fma4_deps="avx"
2188 avx2_deps="avx"
2189
2190 mmx_external_deps="yasm"
2191 mmx_inline_deps="inline_asm"
2192 mmx_suggest="mmx_external mmx_inline"
2193
2194 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2195     eval dep=\$${ext}_deps
2196     eval ${ext}_external_deps='"${dep}_external"'
2197     eval ${ext}_inline_deps='"${dep}_inline"'
2198     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2199 done
2200
2201 aligned_stack_if_any="aarch64 ppc x86"
2202 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2203 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2204 fast_unaligned_if_any="aarch64 ppc x86"
2205 simd_align_16_if_any="altivec neon sse"
2206
2207 # system capabilities
2208 symver_if_any="symver_asm_label symver_gnu_asm"
2209 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2210
2211 # threading support
2212 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2213 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2214 atomics_win32_if="MemoryBarrier"
2215 atomics_native_if_any="$ATOMICS_LIST"
2216 w32threads_deps="atomics_native"
2217 threads_if_any="$THREADS_LIST"
2218
2219 # subsystems
2220 dct_select="rdft"
2221 dirac_parse_select="golomb"
2222 error_resilience_select="me_cmp"
2223 faandct_deps="faan fdctdsp"
2224 faanidct_deps="faan idctdsp"
2225 frame_thread_encoder_deps="encoders threads"
2226 intrax8_select="error_resilience"
2227 mdct_select="fft"
2228 rdft_select="fft"
2229 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2230 mpeg_er_select="error_resilience"
2231 mpegaudio_select="mpegaudiodsp"
2232 mpegaudiodsp_select="dct"
2233 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2234 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2235 qsvdec_select="qsv"
2236 qsvenc_select="qsv"
2237
2238 # decoders / encoders
2239 aac_decoder_select="imdct15 mdct sinewin"
2240 aac_fixed_decoder_select="mdct sinewin"
2241 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2242 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2243 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2244 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2245 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2246 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2247 adpcm_g722_decoder_select="g722dsp"
2248 adpcm_g722_encoder_select="g722dsp"
2249 aic_decoder_select="golomb idctdsp"
2250 alac_encoder_select="lpc"
2251 als_decoder_select="bswapdsp"
2252 amrnb_decoder_select="lsp"
2253 amrwb_decoder_select="lsp"
2254 amv_decoder_select="sp5x_decoder exif"
2255 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2256 ape_decoder_select="bswapdsp llauddsp"
2257 apng_decoder_select="zlib"
2258 apng_encoder_select="huffyuvencdsp zlib"
2259 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2260 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2261 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2262 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2263 atrac1_decoder_select="mdct sinewin"
2264 atrac3_decoder_select="mdct"
2265 atrac3p_decoder_select="mdct sinewin"
2266 avrn_decoder_select="exif jpegtables"
2267 bink_decoder_select="blockdsp hpeldsp"
2268 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2269 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2270 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2271 cllc_decoder_select="bswapdsp"
2272 comfortnoise_encoder_select="lpc"
2273 cook_decoder_select="audiodsp mdct sinewin"
2274 cscd_decoder_select="lzo"
2275 cscd_decoder_suggest="zlib"
2276 dca_decoder_select="fmtconvert mdct"
2277 dds_decoder_select="texturedsp"
2278 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2279 dnxhd_decoder_select="blockdsp idctdsp"
2280 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2281 dvvideo_decoder_select="dvprofile idctdsp"
2282 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2283 dxa_decoder_select="zlib"
2284 dxv_decoder_select="lzf texturedsp"
2285 eac3_decoder_select="ac3_decoder"
2286 eac3_encoder_select="ac3_encoder"
2287 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2288 eatgq_decoder_select="aandcttables"
2289 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2290 exr_decoder_select="zlib"
2291 ffv1_decoder_select="golomb rangecoder"
2292 ffv1_encoder_select="rangecoder"
2293 ffvhuff_decoder_select="huffyuv_decoder"
2294 ffvhuff_encoder_select="huffyuv_encoder"
2295 fic_decoder_select="golomb"
2296 flac_decoder_select="flacdsp golomb"
2297 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2298 flashsv_decoder_select="zlib"
2299 flashsv_encoder_select="zlib"
2300 flashsv2_encoder_select="zlib"
2301 flashsv2_decoder_select="zlib"
2302 flv_decoder_select="h263_decoder"
2303 flv_encoder_select="h263_encoder"
2304 fourxm_decoder_select="blockdsp bswapdsp"
2305 fraps_decoder_select="bswapdsp huffman"
2306 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2307 g729_decoder_select="audiodsp"
2308 h261_decoder_select="mpegvideo"
2309 h261_encoder_select="aandcttables mpegvideoenc"
2310 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2311 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2312 h263i_decoder_select="h263_decoder"
2313 h263p_decoder_select="h263_decoder"
2314 h263p_encoder_select="h263_encoder"
2315 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2316 h264_decoder_suggest="error_resilience"
2317 h264_qsv_decoder_deps="libmfx"
2318 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2319 h264_qsv_encoder_deps="libmfx"
2320 h264_qsv_encoder_select="qsvenc"
2321 hap_decoder_select="snappy texturedsp"
2322 hap_encoder_deps="libsnappy"
2323 hap_encoder_select="texturedspenc"
2324 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2325 hevc_qsv_encoder_deps="libmfx"
2326 hevc_qsv_decoder_deps="libmfx"
2327 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2328 hevc_qsv_encoder_select="qsvenc"
2329 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2330 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2331 iac_decoder_select="imc_decoder"
2332 imc_decoder_select="bswapdsp fft mdct sinewin"
2333 indeo3_decoder_select="hpeldsp"
2334 indeo4_decoder_select="ividsp"
2335 indeo5_decoder_select="ividsp"
2336 interplay_video_decoder_select="hpeldsp"
2337 jpegls_decoder_select="golomb mjpeg_decoder"
2338 jpegls_encoder_select="golomb"
2339 jv_decoder_select="blockdsp"
2340 lagarith_decoder_select="huffyuvdsp"
2341 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2342 loco_decoder_select="golomb"
2343 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2344 metasound_decoder_select="lsp mdct sinewin"
2345 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2346 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2347 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2348 mjpegb_decoder_select="mjpeg_decoder"
2349 mlp_decoder_select="mlp_parser"
2350 motionpixels_decoder_select="bswapdsp"
2351 mp1_decoder_select="mpegaudio"
2352 mp1float_decoder_select="mpegaudio"
2353 mp2_decoder_select="mpegaudio"
2354 mp2float_decoder_select="mpegaudio"
2355 mp3_decoder_select="mpegaudio"
2356 mp3adu_decoder_select="mpegaudio"
2357 mp3adufloat_decoder_select="mpegaudio"
2358 mp3float_decoder_select="mpegaudio"
2359 mp3on4_decoder_select="mpegaudio"
2360 mp3on4float_decoder_select="mpegaudio"
2361 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2362 mpc8_decoder_select="mpegaudiodsp"
2363 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2364 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2365 mpegvideo_decoder_select="mpegvideo"
2366 mpeg1video_decoder_select="mpegvideo"
2367 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2368 mpeg2video_decoder_select="mpegvideo"
2369 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2370 mpeg2_qsv_decoder_deps="libmfx"
2371 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2372 mpeg2_qsv_encoder_deps="libmfx"
2373 mpeg2_qsv_encoder_select="qsvenc"
2374 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2375 mpeg4_encoder_select="h263_encoder"
2376 msa1_decoder_select="mss34dsp"
2377 msmpeg4v1_decoder_select="h263_decoder"
2378 msmpeg4v2_decoder_select="h263_decoder"
2379 msmpeg4v2_encoder_select="h263_encoder"
2380 msmpeg4v3_decoder_select="h263_decoder"
2381 msmpeg4v3_encoder_select="h263_encoder"
2382 mss2_decoder_select="vc1_decoder"
2383 mts2_decoder_select="mss34dsp"
2384 mxpeg_decoder_select="mjpeg_decoder"
2385 nellymoser_decoder_select="mdct sinewin"
2386 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2387 nuv_decoder_select="idctdsp lzo"
2388 on2avc_decoder_select="mdct"
2389 opus_decoder_deps="swresample"
2390 opus_decoder_select="imdct15"
2391 png_decoder_select="zlib"
2392 png_encoder_select="huffyuvencdsp zlib"
2393 prores_decoder_select="blockdsp idctdsp"
2394 prores_encoder_select="fdctdsp"
2395 qcelp_decoder_select="lsp"
2396 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2397 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2398 ra_144_decoder_select="audiodsp"
2399 ralf_decoder_select="golomb"
2400 rawvideo_decoder_select="bswapdsp"
2401 rscc_decoder_select="zlib"
2402 rtjpeg_decoder_select="me_cmp"
2403 rv10_decoder_select="h263_decoder"
2404 rv10_encoder_select="h263_encoder"
2405 rv20_decoder_select="h263_decoder"
2406 rv20_encoder_select="h263_encoder"
2407 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2408 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2409 screenpresso_decoder_select="zlib"
2410 shorten_decoder_select="golomb"
2411 sipr_decoder_select="lsp"
2412 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2413 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2414 sonic_decoder_select="golomb rangecoder"
2415 sonic_encoder_select="golomb rangecoder"
2416 sonic_ls_encoder_select="golomb rangecoder"
2417 sp5x_decoder_select="mjpeg_decoder"
2418 svq1_decoder_select="hpeldsp"
2419 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2420 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2421 svq3_decoder_suggest="zlib"
2422 tak_decoder_select="audiodsp"
2423 tdsc_decoder_select="zlib mjpeg_decoder"
2424 theora_decoder_select="vp3_decoder"
2425 thp_decoder_select="mjpeg_decoder"
2426 tiff_decoder_suggest="zlib lzma"
2427 tiff_encoder_suggest="zlib"
2428 truehd_decoder_select="mlp_parser"
2429 truemotion2_decoder_select="bswapdsp"
2430 truespeech_decoder_select="bswapdsp"
2431 tscc_decoder_select="zlib"
2432 twinvq_decoder_select="mdct lsp sinewin"
2433 txd_decoder_select="texturedsp"
2434 utvideo_decoder_select="bswapdsp"
2435 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2436 vble_decoder_select="huffyuvdsp"
2437 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2438 vc1image_decoder_select="vc1_decoder"
2439 vc1_qsv_decoder_deps="libmfx"
2440 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2441 vorbis_decoder_select="mdct"
2442 vorbis_encoder_select="mdct"
2443 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2444 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2445 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2446 vp6a_decoder_select="vp6_decoder"
2447 vp6f_decoder_select="vp6_decoder"
2448 vp7_decoder_select="h264pred videodsp vp8dsp"
2449 vp8_decoder_select="h264pred videodsp vp8dsp"
2450 vp9_decoder_select="videodsp vp9_parser"
2451 webp_decoder_select="vp8_decoder"
2452 wmalossless_decoder_select="llauddsp"
2453 wmapro_decoder_select="mdct sinewin wma_freqs"
2454 wmav1_decoder_select="mdct sinewin wma_freqs"
2455 wmav1_encoder_select="mdct sinewin wma_freqs"
2456 wmav2_decoder_select="mdct sinewin wma_freqs"
2457 wmav2_encoder_select="mdct sinewin wma_freqs"
2458 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2459 wmv1_decoder_select="h263_decoder"
2460 wmv1_encoder_select="h263_encoder"
2461 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2462 wmv2_encoder_select="h263_encoder wmv2dsp"
2463 wmv3_decoder_select="vc1_decoder"
2464 wmv3image_decoder_select="wmv3_decoder"
2465 zerocodec_decoder_select="zlib"
2466 zlib_decoder_select="zlib"
2467 zlib_encoder_select="zlib"
2468 zmbv_decoder_select="zlib"
2469 zmbv_encoder_select="zlib"
2470
2471 # hardware accelerators
2472 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2473 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2474 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2475 vaapi_deps="va_va_h"
2476 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2477 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2478 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2479 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2480 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2481 xvmc_deps="X11_extensions_XvMClib_h"
2482
2483 h263_vaapi_hwaccel_deps="vaapi"
2484 h263_vaapi_hwaccel_select="h263_decoder"
2485 h263_videotoolbox_hwaccel_deps="videotoolbox"
2486 h263_videotoolbox_hwaccel_select="h263_decoder"
2487 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2488 h264_d3d11va_hwaccel_deps="d3d11va"
2489 h264_d3d11va_hwaccel_select="h264_decoder"
2490 h264_dxva2_hwaccel_deps="dxva2"
2491 h264_dxva2_hwaccel_select="h264_decoder"
2492 h264_mmal_decoder_deps="mmal"
2493 h264_mmal_hwaccel_deps="mmal"
2494 h264_mmal_decoder_select="h264_decoder"
2495 h264_mmal_encoder_deps="mmal"
2496 h264_qsv_hwaccel_deps="libmfx"
2497 h264_vaapi_hwaccel_deps="vaapi"
2498 h264_vaapi_hwaccel_select="h264_decoder"
2499 h264_vda_decoder_deps="vda"
2500 h264_vda_decoder_select="h264_decoder"
2501 h264_vda_hwaccel_deps="vda"
2502 h264_vda_hwaccel_select="h264_decoder"
2503 h264_vda_old_hwaccel_deps="vda"
2504 h264_vda_old_hwaccel_select="h264_decoder"
2505 h264_vdpau_decoder_deps="vdpau"
2506 h264_vdpau_decoder_select="h264_decoder"
2507 h264_vdpau_hwaccel_deps="vdpau"
2508 h264_vdpau_hwaccel_select="h264_decoder"
2509 h264_videotoolbox_hwaccel_deps="videotoolbox"
2510 h264_videotoolbox_hwaccel_select="h264_decoder"
2511 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2512 hevc_d3d11va_hwaccel_select="hevc_decoder"
2513 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2514 hevc_dxva2_hwaccel_select="hevc_decoder"
2515 hevc_qsv_hwaccel_deps="libmfx"
2516 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2517 hevc_vaapi_hwaccel_select="hevc_decoder"
2518 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2519 hevc_vdpau_hwaccel_select="hevc_decoder"
2520 mpeg_vdpau_decoder_deps="vdpau"
2521 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2522 mpeg_xvmc_hwaccel_deps="xvmc"
2523 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2524 mpeg1_vdpau_decoder_deps="vdpau"
2525 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2526 mpeg1_vdpau_hwaccel_deps="vdpau"
2527 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2528 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2529 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2530 mpeg1_xvmc_hwaccel_deps="xvmc"
2531 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2532 mpeg2_crystalhd_decoder_select="crystalhd"
2533 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2534 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2535 mpeg2_dxva2_hwaccel_deps="dxva2"
2536 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2537 mpeg2_mmal_decoder_deps="mmal"
2538 mpeg2_mmal_hwaccel_deps="mmal"
2539 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2540 mpeg2_qsv_hwaccel_deps="libmfx"
2541 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2542 mpeg2_vaapi_hwaccel_deps="vaapi"
2543 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2544 mpeg2_vdpau_hwaccel_deps="vdpau"
2545 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2546 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2547 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2548 mpeg2_xvmc_hwaccel_deps="xvmc"
2549 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2550 mpeg4_crystalhd_decoder_select="crystalhd"
2551 mpeg4_vaapi_hwaccel_deps="vaapi"
2552 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2553 mpeg4_vdpau_decoder_deps="vdpau"
2554 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2555 mpeg4_vdpau_hwaccel_deps="vdpau"
2556 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2557 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2558 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2559 msmpeg4_crystalhd_decoder_select="crystalhd"
2560 vc1_crystalhd_decoder_select="crystalhd"
2561 vc1_d3d11va_hwaccel_deps="d3d11va"
2562 vc1_d3d11va_hwaccel_select="vc1_decoder"
2563 vc1_dxva2_hwaccel_deps="dxva2"
2564 vc1_dxva2_hwaccel_select="vc1_decoder"
2565 vc1_vaapi_hwaccel_deps="vaapi"
2566 vc1_vaapi_hwaccel_select="vc1_decoder"
2567 vc1_vdpau_decoder_deps="vdpau"
2568 vc1_vdpau_decoder_select="vc1_decoder"
2569 vc1_vdpau_hwaccel_deps="vdpau"
2570 vc1_vdpau_hwaccel_select="vc1_decoder"
2571 vc1_mmal_decoder_deps="mmal"
2572 vc1_mmal_hwaccel_deps="mmal"
2573 vc1_mmal_decoder_select="vc1_decoder"
2574 vc1_qsv_hwaccel_deps="libmfx"
2575 vc1_qsv_hwaccel_select="qsvdec_vc1"
2576 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2577 vp9_d3d11va_hwaccel_select="vp9_decoder"
2578 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2579 vp9_dxva2_hwaccel_select="vp9_decoder"
2580 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2581 vp9_vaapi_hwaccel_select="vp9_decoder"
2582 wmv3_crystalhd_decoder_select="crystalhd"
2583 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2584 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2585 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2586 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2587 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2588
2589 # parsers
2590 h264_parser_select="h264_decoder"
2591 hevc_parser_select="golomb"
2592 mpegvideo_parser_select="mpegvideo"
2593 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2594 vc1_parser_select="mpegvideo startcode vc1_decoder"
2595
2596 # bitstream_filters
2597 mjpeg2jpeg_bsf_select="jpegtables"
2598
2599 # external libraries
2600 chromaprint_muxer_deps="chromaprint"
2601 libaacplus_encoder_deps="libaacplus"
2602 libcelt_decoder_deps="libcelt"
2603 libdcadec_decoder_deps="libdcadec"
2604 libfaac_encoder_deps="libfaac"
2605 libfaac_encoder_select="audio_frame_queue"
2606 libfdk_aac_decoder_deps="libfdk_aac"
2607 libfdk_aac_encoder_deps="libfdk_aac"
2608 libfdk_aac_encoder_select="audio_frame_queue"
2609 libgme_demuxer_deps="libgme"
2610 libgsm_decoder_deps="libgsm"
2611 libgsm_encoder_deps="libgsm"
2612 libgsm_ms_decoder_deps="libgsm"
2613 libgsm_ms_encoder_deps="libgsm"
2614 libilbc_decoder_deps="libilbc"
2615 libilbc_encoder_deps="libilbc"
2616 libkvazaar_encoder_deps="libkvazaar"
2617 libmodplug_demuxer_deps="libmodplug"
2618 libmp3lame_encoder_deps="libmp3lame"
2619 libmp3lame_encoder_select="audio_frame_queue"
2620 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2621 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2622 libopencore_amrnb_encoder_select="audio_frame_queue"
2623 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2624 libopenh264_encoder_deps="libopenh264"
2625 libopenjpeg_decoder_deps="libopenjpeg"
2626 libopenjpeg_encoder_deps="libopenjpeg"
2627 libopus_decoder_deps="libopus"
2628 libopus_encoder_deps="libopus"
2629 libopus_encoder_select="audio_frame_queue"
2630 libquvi_demuxer_deps="libquvi"
2631 libschroedinger_decoder_deps="libschroedinger"
2632 libschroedinger_encoder_deps="libschroedinger"
2633 libshine_encoder_deps="libshine"
2634 libshine_encoder_select="audio_frame_queue"
2635 libspeex_decoder_deps="libspeex"
2636 libspeex_encoder_deps="libspeex"
2637 libspeex_encoder_select="audio_frame_queue"
2638 libstagefright_h264_decoder_deps="libstagefright_h264"
2639 libtheora_encoder_deps="libtheora"
2640 libtwolame_encoder_deps="libtwolame"
2641 libvo_aacenc_encoder_deps="libvo_aacenc"
2642 libvo_aacenc_encoder_select="audio_frame_queue"
2643 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2644 libvorbis_decoder_deps="libvorbis"
2645 libvorbis_encoder_deps="libvorbis"
2646 libvorbis_encoder_select="audio_frame_queue"
2647 libvpx_vp8_decoder_deps="libvpx"
2648 libvpx_vp8_encoder_deps="libvpx"
2649 libvpx_vp9_decoder_deps="libvpx"
2650 libvpx_vp9_encoder_deps="libvpx"
2651 libwavpack_encoder_deps="libwavpack"
2652 libwebp_encoder_deps="libwebp"
2653 libwebp_anim_encoder_deps="libwebp"
2654 libx262_encoder_deps="libx262"
2655 libx264_encoder_deps="libx264"
2656 libx264rgb_encoder_deps="libx264"
2657 libx264rgb_encoder_select="libx264_encoder"
2658 libx265_encoder_deps="libx265"
2659 libxavs_encoder_deps="libxavs"
2660 libxvid_encoder_deps="libxvid"
2661 libutvideo_decoder_deps="libutvideo"
2662 libutvideo_encoder_deps="libutvideo"
2663 libzvbi_teletext_decoder_deps="libzvbi"
2664 nvenc_encoder_deps="nvenc"
2665 nvenc_h264_encoder_deps="nvenc"
2666 nvenc_hevc_encoder_deps="nvenc"
2667
2668 # demuxers / muxers
2669 ac3_demuxer_select="ac3_parser"
2670 asf_demuxer_select="riffdec"
2671 asf_o_demuxer_select="riffdec"
2672 asf_muxer_select="riffenc"
2673 asf_stream_muxer_select="asf_muxer"
2674 avi_demuxer_select="riffdec exif"
2675 avi_muxer_select="riffenc"
2676 avisynth_demuxer_deps="avisynth"
2677 avisynth_demuxer_select="riffdec"
2678 caf_demuxer_select="riffdec"
2679 dash_muxer_select="mp4_muxer"
2680 dirac_demuxer_select="dirac_parser"
2681 dts_demuxer_select="dca_parser"
2682 dtshd_demuxer_select="dca_parser"
2683 dv_demuxer_select="dvprofile"
2684 dv_muxer_select="dvprofile"
2685 dxa_demuxer_select="riffdec"
2686 eac3_demuxer_select="ac3_parser"
2687 f4v_muxer_select="mov_muxer"
2688 flac_demuxer_select="flac_parser"
2689 hds_muxer_select="flv_muxer"
2690 hls_muxer_select="mpegts_muxer"
2691 image2_alias_pix_demuxer_select="image2_demuxer"
2692 image2_brender_pix_demuxer_select="image2_demuxer"
2693 ipod_muxer_select="mov_muxer"
2694 ismv_muxer_select="mov_muxer"
2695 libnut_demuxer_deps="libnut"
2696 libnut_muxer_deps="libnut"
2697 matroska_audio_muxer_select="matroska_muxer"
2698 matroska_demuxer_select="riffdec"
2699 matroska_demuxer_suggest="bzlib lzo zlib"
2700 matroska_muxer_select="riffenc"
2701 mmf_muxer_select="riffenc"
2702 mov_demuxer_select="riffdec"
2703 mov_demuxer_suggest="zlib"
2704 mov_muxer_select="riffenc rtpenc_chain"
2705 mp3_demuxer_select="mpegaudio_parser"
2706 mp4_muxer_select="mov_muxer"
2707 mpegts_muxer_select="adts_muxer latm_muxer"
2708 mpegtsraw_demuxer_select="mpegts_demuxer"
2709 mxf_d10_muxer_select="mxf_muxer"
2710 mxf_opatom_muxer_select="mxf_muxer"
2711 nut_muxer_select="riffenc"
2712 nuv_demuxer_select="riffdec"
2713 oga_muxer_select="ogg_muxer"
2714 ogg_demuxer_select="dirac_parse"
2715 opus_muxer_select="ogg_muxer"
2716 psp_muxer_select="mov_muxer"
2717 rtp_demuxer_select="sdp_demuxer"
2718 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2719 rtsp_demuxer_select="http_protocol rtpdec"
2720 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2721 sap_demuxer_select="sdp_demuxer"
2722 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2723 sdp_demuxer_select="rtpdec"
2724 smoothstreaming_muxer_select="ismv_muxer"
2725 spdif_muxer_select="aac_parser"
2726 spx_muxer_select="ogg_muxer"
2727 tak_demuxer_select="tak_parser"
2728 tg2_muxer_select="mov_muxer"
2729 tgp_muxer_select="mov_muxer"
2730 vobsub_demuxer_select="mpegps_demuxer"
2731 w64_demuxer_select="wav_demuxer"
2732 w64_muxer_select="wav_muxer"
2733 wav_demuxer_select="riffdec"
2734 wav_muxer_select="riffenc"
2735 webm_muxer_select="riffenc"
2736 wtv_demuxer_select="riffdec"
2737 wtv_muxer_select="riffenc"
2738 xmv_demuxer_select="riffdec"
2739 xwma_demuxer_select="riffdec"
2740
2741 # indevs / outdevs
2742 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2743 alsa_outdev_deps="alsa_asoundlib_h"
2744 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2745 avfoundation_indev_select="avfoundation"
2746 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2747 caca_outdev_deps="libcaca"
2748 decklink_outdev_deps="decklink pthreads"
2749 decklink_outdev_extralibs="-lstdc++"
2750 decklink_indev_deps="decklink pthreads"
2751 decklink_indev_extralibs="-lstdc++"
2752 dshow_indev_deps="IBaseFilter"
2753 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2754 dv1394_indev_deps="dv1394"
2755 dv1394_indev_select="dv_demuxer"
2756 fbdev_indev_deps="linux_fb_h"
2757 fbdev_outdev_deps="linux_fb_h"
2758 gdigrab_indev_deps="CreateDIBSection"
2759 gdigrab_indev_extralibs="-lgdi32"
2760 gdigrab_indev_select="bmp_decoder"
2761 iec61883_indev_deps="libiec61883"
2762 jack_indev_deps="jack_jack_h sem_timedwait"
2763 lavfi_indev_deps="avfilter"
2764 libcdio_indev_deps="libcdio"
2765 libdc1394_indev_deps="libdc1394"
2766 libv4l2_indev_deps="libv4l2"
2767 openal_indev_deps="openal"
2768 opengl_outdev_deps="opengl"
2769 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2770 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2771 pulse_indev_deps="libpulse"
2772 pulse_outdev_deps="libpulse"
2773 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2774 qtkit_indev_select="qtkit"
2775 sdl_outdev_deps="sdl"
2776 sndio_indev_deps="sndio_h"
2777 sndio_outdev_deps="sndio_h"
2778 v4l_indev_deps="linux_videodev_h"
2779 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2780 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2781 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2782 vfwcap_indev_extralibs="-lavicap32"
2783 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2784 xv_outdev_extralibs="-lXv -lX11 -lXext"
2785 x11grab_indev_deps="x11grab"
2786 x11grab_xcb_indev_deps="libxcb"
2787
2788 # protocols
2789 async_protocol_deps="threads"
2790 bluray_protocol_deps="libbluray"
2791 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2792 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2793 ffrtmpcrypt_protocol_select="tcp_protocol"
2794 ffrtmphttp_protocol_deps="!librtmp_protocol"
2795 ffrtmphttp_protocol_select="http_protocol"
2796 ftp_protocol_select="tcp_protocol"
2797 gopher_protocol_select="network"
2798 http_protocol_select="tcp_protocol"
2799 httpproxy_protocol_select="tcp_protocol"
2800 https_protocol_select="tls_protocol"
2801 icecast_protocol_select="http_protocol"
2802 librtmp_protocol_deps="librtmp"
2803 librtmpe_protocol_deps="librtmp"
2804 librtmps_protocol_deps="librtmp"
2805 librtmpt_protocol_deps="librtmp"
2806 librtmpte_protocol_deps="librtmp"
2807 libsmbclient_protocol_deps="libsmbclient gplv3"
2808 libssh_protocol_deps="libssh"
2809 mmsh_protocol_select="http_protocol"
2810 mmst_protocol_select="network"
2811 rtmp_protocol_deps="!librtmp_protocol"
2812 rtmp_protocol_select="tcp_protocol"
2813 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2814 rtmps_protocol_deps="!librtmp_protocol"
2815 rtmps_protocol_select="tls_protocol"
2816 rtmpt_protocol_select="ffrtmphttp_protocol"
2817 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2818 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2819 rtp_protocol_select="udp_protocol"
2820 sctp_protocol_deps="struct_sctp_event_subscribe"
2821 sctp_protocol_select="network"
2822 srtp_protocol_select="rtp_protocol"
2823 tcp_protocol_select="network"
2824 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2825 tls_gnutls_protocol_select="tcp_protocol"
2826 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2827 tls_openssl_protocol_select="tcp_protocol"
2828 tls_schannel_protocol_deps="schannel"
2829 tls_schannel_protocol_select="tcp_protocol"
2830 tls_securetransport_protocol_deps="securetransport"
2831 tls_securetransport_protocol_select="tcp_protocol"
2832 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2833 udp_protocol_select="network"
2834 udplite_protocol_select="network"
2835 unix_protocol_deps="sys_un_h"
2836 unix_protocol_select="network"
2837
2838 # filters
2839 aemphasis_filter_deps="cabs cexp"
2840 amovie_filter_deps="avcodec avformat"
2841 aresample_filter_deps="swresample"
2842 ass_filter_deps="libass"
2843 asyncts_filter_deps="avresample"
2844 atempo_filter_deps="avcodec"
2845 atempo_filter_select="rdft"
2846 azmq_filter_deps="libzmq"
2847 blackframe_filter_deps="gpl"
2848 boxblur_filter_deps="gpl"
2849 bs2b_filter_deps="libbs2b"
2850 colormatrix_filter_deps="gpl"
2851 cover_rect_filter_deps="avcodec avformat gpl"
2852 cropdetect_filter_deps="gpl"
2853 delogo_filter_deps="gpl"
2854 deshake_filter_select="pixelutils"
2855 drawtext_filter_deps="libfreetype"
2856 ebur128_filter_deps="gpl"
2857 eq_filter_deps="gpl"
2858 fftfilt_filter_deps="avcodec"
2859 fftfilt_filter_select="rdft"
2860 flite_filter_deps="libflite"
2861 find_rect_filter_deps="avcodec avformat gpl"
2862 frei0r_filter_deps="frei0r dlopen"
2863 frei0r_src_filter_deps="frei0r dlopen"
2864 fspp_filter_deps="gpl"
2865 geq_filter_deps="gpl"
2866 histeq_filter_deps="gpl"
2867 hqdn3d_filter_deps="gpl"
2868 interlace_filter_deps="gpl"
2869 kerndeint_filter_deps="gpl"
2870 ladspa_filter_deps="ladspa dlopen"
2871 mcdeint_filter_deps="avcodec gpl"
2872 movie_filter_deps="avcodec avformat"
2873 mpdecimate_filter_deps="gpl"
2874 mpdecimate_filter_select="pixelutils"
2875 mptestsrc_filter_deps="gpl"
2876 negate_filter_deps="lut_filter"
2877 perspective_filter_deps="gpl"
2878 pp7_filter_deps="gpl"
2879 ocr_filter_deps="libtesseract"
2880 ocv_filter_deps="libopencv"
2881 owdenoise_filter_deps="gpl"
2882 pan_filter_deps="swresample"
2883 phase_filter_deps="gpl"
2884 pp_filter_deps="gpl postproc"
2885 pullup_filter_deps="gpl"
2886 removelogo_filter_deps="avcodec avformat swscale"
2887 repeatfields_filter_deps="gpl"
2888 resample_filter_deps="avresample"
2889 rubberband_filter_deps="librubberband"
2890 sab_filter_deps="gpl swscale"
2891 scale_filter_deps="swscale"
2892 scale2ref_filter_deps="swscale"
2893 select_filter_select="pixelutils"
2894 smartblur_filter_deps="gpl swscale"
2895 showcqt_filter_deps="avcodec avformat swscale"
2896 showcqt_filter_select="fft"
2897 showfreqs_filter_deps="avcodec"
2898 showfreqs_filter_select="fft"
2899 showspectrum_filter_deps="avcodec"
2900 showspectrum_filter_select="rdft"
2901 sofalizer_filter_deps="netcdf avcodec"
2902 sofalizer_filter_select="fft"
2903 spp_filter_deps="gpl avcodec"
2904 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2905 stereo3d_filter_deps="gpl"
2906 subtitles_filter_deps="avformat avcodec libass"
2907 super2xsai_filter_deps="gpl"
2908 tinterlace_filter_deps="gpl"
2909 vidstabdetect_filter_deps="libvidstab"
2910 vidstabtransform_filter_deps="libvidstab"
2911 pixfmts_super2xsai_test_deps="super2xsai_filter"
2912 tinterlace_merge_test_deps="tinterlace_filter"
2913 tinterlace_pad_test_deps="tinterlace_filter"
2914 uspp_filter_deps="gpl avcodec"
2915 zmq_filter_deps="libzmq"
2916 zoompan_filter_deps="swscale"
2917 zscale_filter_deps="libzimg"
2918
2919 # examples
2920 avio_reading="avformat avcodec avutil"
2921 avio_dir_cmd="avformat avutil"
2922 avcodec_example_deps="avcodec avutil"
2923 decoding_encoding_example_deps="avcodec avformat avutil"
2924 demuxing_decoding_example_deps="avcodec avformat avutil"
2925 extract_mvs_example_deps="avcodec avformat avutil"
2926 filter_audio_example_deps="avfilter avutil"
2927 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2928 filtering_video_example_deps="avfilter avcodec avformat avutil"
2929 metadata_example_deps="avformat avutil"
2930 muxing_example_deps="avcodec avformat avutil swscale"
2931 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2932 remuxing_example_deps="avcodec avformat avutil"
2933 resampling_audio_example_deps="avutil swresample"
2934 scaling_video_example_deps="avutil swscale"
2935 transcode_aac_example_deps="avcodec avformat swresample"
2936 transcoding_example_deps="avfilter avcodec avformat avutil"
2937
2938 # libraries, in linking order
2939 avcodec_deps="avutil"
2940 avdevice_deps="avformat avcodec avutil"
2941 avfilter_deps="avutil"
2942 avformat_deps="avcodec avutil"
2943 avresample_deps="avutil"
2944 postproc_deps="avutil gpl"
2945 swresample_deps="avutil"
2946 swscale_deps="avutil"
2947
2948 # programs
2949 ffmpeg_deps="avcodec avfilter avformat swresample"
2950 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2951                null_filter
2952                setpts_filter trim_filter"
2953 ffplay_deps="avcodec avformat swscale swresample sdl"
2954 ffplay_libs='$sdl_libs'
2955 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2956 ffprobe_deps="avcodec avformat"
2957 ffserver_deps="avformat fork sarestart"
2958 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2959
2960 # documentation
2961 podpages_deps="perl"
2962 manpages_deps="perl pod2man"
2963 htmlpages_deps="perl"
2964 htmlpages_deps_any="makeinfo_html texi2html"
2965 txtpages_deps="perl makeinfo"
2966 doc_deps_any="manpages htmlpages podpages txtpages"
2967
2968 # default parameters
2969
2970 logfile="config.log"
2971
2972 # installation paths
2973 prefix_default="/usr/local"
2974 bindir_default='${prefix}/bin'
2975 datadir_default='${prefix}/share/ffmpeg'
2976 docdir_default='${prefix}/share/doc/ffmpeg'
2977 incdir_default='${prefix}/include'
2978 libdir_default='${prefix}/lib'
2979 mandir_default='${prefix}/share/man'
2980
2981 # toolchain
2982 ar_default="ar"
2983 cc_default="gcc"
2984 cxx_default="g++"
2985 host_cc_default="gcc"
2986 cp_f="cp -f"
2987 doxygen_default="doxygen"
2988 install="install"
2989 ln_s="ln -s -f"
2990 nm_default="nm -g"
2991 objformat="elf"
2992 pkg_config_default=pkg-config
2993 ranlib_default="ranlib"
2994 strip_default="strip"
2995 yasmexe_default="yasm"
2996 windres_default="windres"
2997
2998 # OS
2999 target_os_default=$(tolower $(uname -s))
3000 host_os=$target_os_default
3001
3002 # machine
3003 if test "$target_os_default" = aix; then
3004     arch_default=$(uname -p)
3005     strip_default="strip -X32_64"
3006 else
3007     arch_default=$(uname -m)
3008 fi
3009 cpu="generic"
3010 intrinsics="none"
3011
3012 # configurable options
3013 enable $PROGRAM_LIST
3014 enable $DOCUMENT_LIST
3015 enable $EXAMPLE_LIST
3016 enable $(filter_out avresample $LIBRARY_LIST)
3017 enable stripping
3018
3019 enable asm
3020 enable debug
3021 enable doc
3022 enable faan faandct faanidct
3023 enable optimizations
3024 enable runtime_cpudetect
3025 enable safe_bitstream_reader
3026 enable static
3027 enable swscale_alpha
3028 enable valgrind_backtrace
3029
3030 sws_max_filter_size_default=256
3031 set_default sws_max_filter_size
3032
3033 # Enable hwaccels by default.
3034 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3035 enable xlib
3036
3037 # build settings
3038 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3039 LIBPREF="lib"
3040 LIBSUF=".a"
3041 FULLNAME='$(NAME)$(BUILDSUF)'
3042 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3043 SLIBPREF="lib"
3044 SLIBSUF=".so"
3045 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3046 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3047 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3048 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3049 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3050 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3051
3052 asflags_filter=echo
3053 cflags_filter=echo
3054 ldflags_filter=echo
3055
3056 AS_C='-c'
3057 AS_O='-o $@'
3058 CC_C='-c'
3059 CC_E='-E -o $@'
3060 CC_O='-o $@'
3061 CXX_C='-c'
3062 CXX_O='-o $@'
3063 OBJCC_C='-c'
3064 OBJCC_E='-E -o $@'
3065 OBJCC_O='-o $@'
3066 LD_O='-o $@'
3067 LD_LIB='-l%'
3068 LD_PATH='-L'
3069 HOSTCC_C='-c'
3070 HOSTCC_E='-E -o $@'
3071 HOSTCC_O='-o $@'
3072 HOSTLD_O='-o $@'
3073
3074 host_libs='-lm'
3075 host_cflags_filter=echo
3076 host_ldflags_filter=echo
3077
3078 target_path='$(CURDIR)'
3079
3080 # since the object filename is not given with the -MM flag, the compiler
3081 # is only able to print the basename, and we must add the path ourselves
3082 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3083 DEPFLAGS='-MM'
3084
3085 # find source path
3086 if test -f configure; then
3087     source_path=.
3088 else
3089     source_path=$(cd $(dirname "$0"); pwd)
3090     case "$source_path" in
3091         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3092     esac
3093     test -e "$source_path/config.h" &&
3094         die "Out of tree builds are impossible with config.h in source dir."
3095 fi
3096
3097 for v in "$@"; do
3098     r=${v#*=}
3099     l=${v%"$r"}
3100     r=$(sh_quote "$r")
3101     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3102 done
3103
3104 find_things(){
3105     thing=$1
3106     pattern=$2
3107     file=$source_path/$3
3108     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3109 }
3110
3111 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3112 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3113 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3114 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3115 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3116 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3117 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3118 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3119 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3120 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3121 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3122
3123 ALL_COMPONENTS="
3124     $BSF_LIST
3125     $DECODER_LIST
3126     $DEMUXER_LIST
3127     $ENCODER_LIST
3128     $FILTER_LIST
3129     $HWACCEL_LIST
3130     $INDEV_LIST
3131     $MUXER_LIST
3132     $OUTDEV_LIST
3133     $PARSER_LIST
3134     $PROTOCOL_LIST
3135 "
3136
3137 for n in $COMPONENT_LIST; do
3138     v=$(toupper ${n%s})_LIST
3139     eval enable \$$v
3140     eval ${n}_if_any="\$$v"
3141 done
3142
3143 enable $ARCH_EXT_LIST
3144
3145 die_unknown(){
3146     echo "Unknown option \"$1\"."
3147     echo "See $0 --help for available options."
3148     exit 1
3149 }
3150
3151 print_in_columns() {
3152     cols=$(expr $ncols / 24)
3153     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3154 }
3155
3156 show_list() {
3157     suffix=_$1
3158     shift
3159     echo $* | sed s/$suffix//g | print_in_columns
3160     exit 0
3161 }
3162
3163 rand_list(){
3164     IFS=', '
3165     set -- $*
3166     unset IFS
3167     for thing; do
3168         comp=${thing%:*}
3169         prob=${thing#$comp}
3170         prob=${prob#:}
3171         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3172         echo "prob ${prob:-0.5}"
3173         printf '%s\n' $comp
3174     done
3175 }
3176
3177 do_random(){
3178     action=$1
3179     shift
3180     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3181     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3182 }
3183
3184 for opt do
3185     optval="${opt#*=}"
3186     case "$opt" in
3187         --extra-ldflags=*)
3188             add_ldflags $optval
3189         ;;
3190         --extra-ldexeflags=*)
3191             add_ldexeflags $optval
3192         ;;
3193         --extra-ldlibflags=*)
3194             add_ldlibflags $optval
3195         ;;
3196         --extra-libs=*)
3197             add_extralibs $optval
3198         ;;
3199         --disable-devices)
3200             disable $INDEV_LIST $OUTDEV_LIST
3201         ;;
3202         --enable-debug=*)
3203             debuglevel="$optval"
3204         ;;
3205         --disable-programs)
3206             disable $PROGRAM_LIST
3207         ;;
3208         --disable-everything)
3209             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3210         ;;
3211         --disable-all)
3212             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3213             disable $LIBRARY_LIST $PROGRAM_LIST doc
3214             enable avutil
3215         ;;
3216         --enable-random|--disable-random)
3217             action=${opt%%-random}
3218             do_random ${action#--} $COMPONENT_LIST
3219         ;;
3220         --enable-random=*|--disable-random=*)
3221             action=${opt%%-random=*}
3222             do_random ${action#--} $optval
3223         ;;
3224         --enable-*=*|--disable-*=*)
3225             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3226             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3227             eval list=\$$(toupper $thing)_LIST
3228             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3229             list=$(filter "$name" $list)
3230             [ "$list" = "" ] && warn "Option $opt did not match anything"
3231             $action $list
3232         ;;
3233         --enable-?*|--disable-?*)
3234             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3235             if is_in $option $COMPONENT_LIST; then
3236                 test $action = disable && action=unset
3237                 eval $action \$$(toupper ${option%s})_LIST
3238             elif is_in $option $CMDLINE_SELECT; then
3239                 $action $option
3240             else
3241                 die_unknown $opt
3242             fi
3243         ;;
3244         --list-*)
3245             NAME="${opt#--list-}"
3246             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3247             NAME=${NAME%s}
3248             eval show_list $NAME \$$(toupper $NAME)_LIST
3249         ;;
3250         --help|-h) show_help
3251         ;;
3252         --fatal-warnings) enable fatal_warnings
3253         ;;
3254         *)
3255             optname="${opt%%=*}"
3256             optname="${optname#--}"
3257             optname=$(echo "$optname" | sed 's/-/_/g')
3258             if is_in $optname $CMDLINE_SET; then
3259                 eval $optname='$optval'
3260             elif is_in $optname $CMDLINE_APPEND; then
3261                 append $optname "$optval"
3262             else
3263                 die_unknown $opt
3264             fi
3265         ;;
3266     esac
3267 done
3268
3269 for e in $env; do
3270     eval "export $e"
3271 done
3272
3273 disabled logging && logfile=/dev/null
3274
3275 # Disable all the library-specific components if the library itself
3276 # is disabled, see AVCODEC_LIST and following _LIST variables.
3277
3278 disable_components(){
3279     disabled ${1} && disable $(
3280         eval components="\$$(toupper ${1})_COMPONENTS"
3281         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3282     )
3283 }
3284
3285 map 'disable_components $v' $LIBRARY_LIST
3286
3287 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3288 set >> $logfile
3289
3290 test -n "$valgrind" && toolchain="valgrind-memcheck"
3291
3292 case "$toolchain" in
3293     clang-asan)
3294         cc_default="clang"
3295         add_cflags  -fsanitize=address
3296         add_ldflags -fsanitize=address
3297     ;;
3298     clang-tsan)
3299         cc_default="clang"
3300         add_cflags  -fsanitize=thread -pie
3301         add_ldflags -fsanitize=thread -pie
3302     ;;
3303     clang-usan)
3304         cc_default="clang"
3305         add_cflags  -fsanitize=undefined
3306         add_ldflags -fsanitize=undefined
3307     ;;
3308     gcc-asan)
3309         cc_default="gcc"
3310         add_cflags  -fsanitize=address
3311         add_ldflags -fsanitize=address
3312     ;;
3313     gcc-tsan)
3314         cc_default="gcc"
3315         add_cflags  -fsanitize=thread -pie -fPIC
3316         add_ldflags -fsanitize=thread -pie -fPIC
3317     ;;
3318     gcc-usan)
3319         cc_default="gcc"
3320         add_cflags  -fsanitize=undefined
3321         add_ldflags -fsanitize=undefined
3322     ;;
3323     valgrind-massif)
3324         target_exec_default=${valgrind:-"valgrind"}
3325         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"
3326     ;;
3327     valgrind-memcheck)
3328         target_exec_default=${valgrind:-"valgrind"}
3329         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3330     ;;
3331     msvc)
3332         # Check whether the current MSVC version needs the C99 converter.
3333         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3334         # support enough of C99 to build ffmpeg. Default to the new
3335         # behaviour if the regexp was unable to match anything, since this
3336         # successfully parses the version number of existing supported
3337         # versions that require the converter (MSVC 2010 and 2012).
3338         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3339         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3340             cc_default="cl"
3341         else
3342             cc_default="c99wrap cl"
3343         fi
3344         ld_default="$source_path/compat/windows/mslink"
3345         nm_default="dumpbin -symbols"
3346         ar_default="lib"
3347         case "$arch" in
3348         arm*)
3349             as_default="armasm"
3350             ;;
3351         esac
3352         target_os_default="win32"
3353         # Use a relative path for TMPDIR. This makes sure all the
3354         # ffconf temp files are written with a relative path, avoiding
3355         # issues with msys/win32 path conversion for MSVC parameters
3356         # such as -Fo<file> or -out:<file>.
3357         TMPDIR=.
3358     ;;
3359     icl)
3360         cc_default="icl"
3361         ld_default="xilink"
3362         nm_default="dumpbin -symbols"
3363         ar_default="xilib"
3364         target_os_default="win32"
3365         TMPDIR=.
3366     ;;
3367     gcov)
3368         add_cflags  -fprofile-arcs -ftest-coverage
3369         add_ldflags -fprofile-arcs -ftest-coverage
3370     ;;
3371     hardened)
3372         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3373         add_cflags   -fno-strict-overflow -fstack-protector-all
3374         add_ldflags  -Wl,-z,relro -Wl,-z,now
3375     ;;
3376     ?*)
3377         die "Unknown toolchain $toolchain"
3378     ;;
3379 esac
3380
3381 test -n "$cross_prefix" && enable cross_compile
3382
3383 if enabled cross_compile; then
3384     test -n "$arch" && test -n "$target_os" ||
3385         die "Must specify target arch and OS when cross-compiling"
3386 fi
3387
3388 ar_default="${cross_prefix}${ar_default}"
3389 cc_default="${cross_prefix}${cc_default}"
3390 cxx_default="${cross_prefix}${cxx_default}"
3391 nm_default="${cross_prefix}${nm_default}"
3392 pkg_config_default="${cross_prefix}${pkg_config_default}"
3393 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3394     ranlib_default="${cross_prefix}${ranlib_default} -D"
3395 else
3396     ranlib_default="${cross_prefix}${ranlib_default}"
3397 fi
3398 strip_default="${cross_prefix}${strip_default}"
3399 windres_default="${cross_prefix}${windres_default}"
3400
3401 sysinclude_default="${sysroot}/usr/include"
3402
3403 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3404     target_exec target_os yasmexe
3405 enabled cross_compile || host_cc_default=$cc
3406 set_default host_cc
3407
3408 pkg_config_fail_message=""
3409 if ! $pkg_config --version >/dev/null 2>&1; then
3410     warn "$pkg_config not found, library detection may fail."
3411     pkg_config=false
3412 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3413     pkg_config_fail_message="
3414 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3415 fi
3416
3417 if test $doxygen != $doxygen_default && \
3418   ! $doxygen --version >/dev/null 2>&1; then
3419     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3420 fi
3421
3422 exesuf() {
3423     case $1 in
3424         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3425     esac
3426 }
3427
3428 EXESUF=$(exesuf $target_os)
3429 HOSTEXESUF=$(exesuf $host_os)
3430
3431 # set temporary file name
3432 : ${TMPDIR:=$TEMPDIR}
3433 : ${TMPDIR:=$TMP}
3434 : ${TMPDIR:=/tmp}
3435
3436 if [ -n "$tempprefix" ] ; then
3437     mktemp(){
3438         echo $tempprefix.${HOSTNAME}.${UID}
3439     }
3440 elif ! check_cmd mktemp -u XXXXXX; then
3441     # simple replacement for missing mktemp
3442     # NOT SAFE FOR GENERAL USE
3443     mktemp(){
3444         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3445     }
3446 fi
3447
3448 tmpfile(){
3449     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3450         (set -C; exec > $tmp) 2>/dev/null ||
3451         die "Unable to create temporary file in $TMPDIR."
3452     append TMPFILES $tmp
3453     eval $1=$tmp
3454 }
3455
3456 trap 'rm -f -- $TMPFILES' EXIT
3457
3458 tmpfile TMPASM .asm
3459 tmpfile TMPC   .c
3460 tmpfile TMPCPP .cpp
3461 tmpfile TMPE   $EXESUF
3462 tmpfile TMPH   .h
3463 tmpfile TMPM   .m
3464 tmpfile TMPO   .o
3465 tmpfile TMPS   .S
3466 tmpfile TMPSH  .sh
3467 tmpfile TMPV   .ver
3468
3469 unset -f mktemp
3470
3471 chmod +x $TMPE
3472
3473 # make sure we can execute files in $TMPDIR
3474 cat > $TMPSH 2>> $logfile <<EOF
3475 #! /bin/sh
3476 EOF
3477 chmod +x $TMPSH >> $logfile 2>&1
3478 if ! $TMPSH >> $logfile 2>&1; then
3479     cat <<EOF
3480 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3481 variable to another directory and make sure that it is not mounted noexec.
3482 EOF
3483     die "Sanity test failed."
3484 fi
3485
3486 armasm_flags(){
3487     for flag; do
3488         case $flag in
3489             # Filter out MSVC cl.exe options from cflags that shouldn't
3490             # be passed to gas-preprocessor
3491             -M[TD]*)                                            ;;
3492             *)                  echo $flag                      ;;
3493         esac
3494    done
3495 }
3496
3497 ccc_flags(){
3498     for flag; do
3499         case $flag in
3500             -std=c99)           echo -c99                       ;;
3501             -mcpu=*)            echo -arch ${flag#*=}           ;;
3502             -mieee)             echo -ieee                      ;;
3503             -O*|-fast)          echo $flag                      ;;
3504             -fno-math-errno)    echo -assume nomath_errno       ;;
3505             -g)                 echo -g3                        ;;
3506             -Wall)              echo -msg_enable level2         ;;
3507             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3508             -Wl,*)              echo $flag                      ;;
3509             -f*|-W*)                                            ;;
3510             *)                  echo $flag                      ;;
3511         esac
3512    done
3513 }
3514
3515 cparser_flags(){
3516     for flag; do
3517         case $flag in
3518             -Wno-switch)             echo -Wno-switch-enum ;;
3519             -Wno-format-zero-length) ;;
3520             -Wdisabled-optimization) ;;
3521             -Wno-pointer-sign)       echo -Wno-other ;;
3522             *)                       echo $flag ;;
3523         esac
3524     done
3525 }
3526
3527 msvc_common_flags(){
3528     for flag; do
3529         case $flag in
3530             # In addition to specifying certain flags under the compiler
3531             # specific filters, they must be specified here as well or else the
3532             # generic catch all at the bottom will print the original flag.
3533             -Wall)                ;;
3534             -std=c99)             ;;
3535             # Common flags
3536             -fomit-frame-pointer) ;;
3537             -g)                   echo -Z7 ;;
3538             -fno-math-errno)      ;;
3539             -fno-common)          ;;
3540             -fno-signed-zeros)    ;;
3541             -fPIC)                ;;
3542             -mthumb)              ;;
3543             -march=*)             ;;
3544             -lz)                  echo zlib.lib ;;
3545             -lavifil32)           echo vfw32.lib ;;
3546             -lavicap32)           echo vfw32.lib user32.lib ;;
3547             -l*)                  echo ${flag#-l}.lib ;;
3548             -LARGEADDRESSAWARE)   echo $flag ;;
3549             -L*)                  echo -libpath:${flag#-L} ;;
3550             *)                    echo $flag ;;
3551         esac
3552     done
3553 }
3554
3555 msvc_flags(){
3556     msvc_common_flags "$@"
3557     for flag; do
3558         case $flag in
3559             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3560                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3561                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3562                                        -wd4307 \
3563                                        -wd4273 -wd4554 -wd4701 ;;
3564         esac
3565     done
3566 }
3567
3568 icl_flags(){
3569     msvc_common_flags "$@"
3570     for flag; do
3571         case $flag in
3572             # Despite what Intel's documentation says -Wall, which is supported
3573             # on Windows, does enable remarks so disable them here.
3574             -Wall)                echo $flag -Qdiag-disable:remark ;;
3575             -std=c99)             echo -Qstd=c99 ;;
3576             -flto)                echo -ipo ;;
3577         esac
3578     done
3579 }
3580
3581 icc_flags(){
3582     for flag; do
3583         case $flag in
3584             -flto)                echo -ipo ;;
3585             *)                    echo $flag ;;
3586         esac
3587     done
3588 }
3589
3590 pgi_flags(){
3591     for flag; do
3592         case $flag in
3593             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3594             -fomit-frame-pointer) echo -Mnoframe ;;
3595             -g)                   echo -gopt ;;
3596             *)                    echo $flag ;;
3597         esac
3598     done
3599 }
3600
3601 suncc_flags(){
3602     for flag; do
3603         case $flag in
3604             -march=*|-mcpu=*)
3605                 case "${flag#*=}" in
3606                     native)                   echo -xtarget=native       ;;
3607                     v9|niagara)               echo -xarch=sparc          ;;
3608                     ultrasparc)               echo -xarch=sparcvis       ;;
3609                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3610                     i586|pentium)             echo -xchip=pentium        ;;
3611                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3612                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3613                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3614                     pentium4*)          echo -xtarget=pentium4           ;;
3615                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3616                     *-sse3)             echo -xarch=sse3                 ;;
3617                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3618                     bonnell)                   echo -xarch=ssse3         ;;
3619                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3620                     westmere)                  echo -xtarget=westmere    ;;
3621                     silvermont)                echo -xarch=sse4_2        ;;
3622                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3623                     core-avx*|ivybridge|haswell|broadwell)
3624                                                echo -xarch=avx           ;;
3625                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3626                     btver1)                    echo -xarch=amdsse4a      ;;
3627                     btver2|bdver*)             echo -xarch=avx           ;;
3628                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3629                     k8|opteron|athlon64|athlon-fx)
3630                                                echo -xarch=sse2a         ;;
3631                     athlon*)                   echo -xarch=pentium_proa  ;;
3632                 esac
3633                 ;;
3634             -std=c99)             echo -xc99              ;;
3635             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3636             -fPIC)                echo -KPIC -xcode=pic32 ;;
3637             -W*,*)                echo $flag              ;;
3638             -f*-*|-W*|-mimpure-text)                      ;;
3639             -shared)              echo -G                 ;;
3640             *)                    echo $flag              ;;
3641         esac
3642     done
3643 }
3644
3645 tms470_flags(){
3646     for flag; do
3647         case $flag in
3648             -march=*|-mcpu=*)
3649                 case "${flag#*=}" in
3650                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3651                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3652                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3653                     armv6*|arm11*)          echo -mv=6   ;;
3654                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3655                                             echo -mv=5e  ;;
3656                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3657                 esac
3658                 ;;
3659             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3660             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3661             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3662             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3663             -msoft-float)   echo --float_support=vfplib       ;;
3664             -O[0-3]|-mf=*)  echo $flag                        ;;
3665             -g)             echo -g -mn                       ;;
3666             -pds=*)         echo $flag                        ;;
3667             -D*|-I*)        echo $flag                        ;;
3668             --gcc|--abi=*)  echo $flag                        ;;
3669             -me)            echo $flag                        ;;
3670         esac
3671     done
3672 }
3673
3674 probe_cc(){
3675     pfx=$1
3676     _cc=$2
3677     first=$3
3678
3679     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3680     unset _ld_o _ldflags _ld_lib _ld_path
3681     unset _depflags _DEPCMD _DEPFLAGS
3682     _flags_filter=echo
3683
3684     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3685         true # no-op to avoid reading stdin in following checks
3686     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3687         _type=llvm_gcc
3688         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3689         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3690         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3691         _cflags_speed='-O3'
3692         _cflags_size='-Os'
3693     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3694         _type=gcc
3695         gcc_version=$($_cc --version | head -n1)
3696         gcc_basever=$($_cc -dumpversion)
3697         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3698         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3699         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3700         case $gcc_basever in
3701             2*) ;;
3702             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3703         esac
3704         if [ "$first" = true ]; then
3705             case $gcc_basever in
3706                 4.2*)
3707                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3708             esac
3709         fi
3710         _cflags_speed='-O3'
3711         _cflags_size='-Os'
3712     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3713         _type=icc
3714         _ident=$($_cc --version | head -n1)
3715         _depflags='-MMD'
3716         _cflags_speed='-O3'
3717         _cflags_size='-Os'
3718         _cflags_noopt='-O1'
3719         _flags_filter=icc_flags
3720     elif $_cc -v 2>&1 | grep -q xlc; then
3721         _type=xlc
3722         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3723         _cflags_speed='-O5'
3724         _cflags_size='-O5 -qcompact'
3725     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3726         _type=ccc
3727         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3728         _DEPFLAGS='-M'
3729         _cflags_speed='-fast'
3730         _cflags_size='-O1'
3731         _flags_filter=ccc_flags
3732     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3733         test -d "$sysroot" || die "No valid sysroot specified."
3734         _type=armcc
3735         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3736         armcc_conf="$PWD/armcc.conf"
3737         $_cc --arm_linux_configure                 \
3738              --arm_linux_config_file="$armcc_conf" \
3739              --configure_sysroot="$sysroot"        \
3740              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3741              die "Error creating armcc configuration file."
3742         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3743         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3744         as_default="${cross_prefix}gcc"
3745         _depflags='-MMD'
3746         _cflags_speed='-O3'
3747         _cflags_size='-Os'
3748     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3749         _type=tms470
3750         _ident=$($_cc -version | head -n1 | tr -s ' ')
3751         _flags='--gcc --abi=eabi -me'
3752         _cc_e='-ppl -fe=$@'
3753         _cc_o='-fe=$@'
3754         _depflags='-ppa -ppd=$(@:.o=.d)'
3755         _cflags_speed='-O3 -mf=5'
3756         _cflags_size='-O3 -mf=2'
3757         _flags_filter=tms470_flags
3758     elif $_cc -v 2>&1 | grep -q clang; then
3759         _type=clang
3760         _ident=$($_cc --version 2>/dev/null | head -n1)
3761         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3762         _cflags_speed='-O3'
3763         _cflags_size='-Os'
3764     elif $_cc -V 2>&1 | grep -q Sun; then
3765         _type=suncc
3766         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3767         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3768         _DEPFLAGS='-xM1 -xc99'
3769         _ldflags='-std=c99'
3770         _cflags_speed='-O5'
3771         _cflags_size='-O5 -xspace'
3772         _flags_filter=suncc_flags
3773     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3774         _type=pathscale
3775         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3776         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3777         _cflags_speed='-O2'
3778         _cflags_size='-Os'
3779         _flags_filter='filter_out -Wdisabled-optimization'
3780     elif $_cc -v 2>&1 | grep -q Open64; then
3781         _type=open64
3782         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3783         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3784         _cflags_speed='-O2'
3785         _cflags_size='-Os'
3786         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3787     elif $_cc -V 2>&1 | grep -q Portland; then
3788         _type=pgi
3789         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3790         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3791         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3792         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3793         _cflags_noopt="-O"
3794         _flags_filter=pgi_flags
3795     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3796         _type=armasm
3797         _ident=$($_cc | head -n1)
3798         # 4509: "This form of conditional instruction is deprecated"
3799         _flags="-nologo -ignore 4509"
3800         _flags_filter=armasm_flags
3801     elif $_cc 2>&1 | grep -q Intel; then
3802         _type=icl
3803         _ident=$($_cc 2>&1 | head -n1)
3804         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3805         # Not only is O3 broken on 13.x+ but it is slower on all previous
3806         # versions (tested) as well.
3807         _cflags_speed="-O2"
3808         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3809         if $_cc 2>&1 | grep -q Linker; then
3810             _ld_o='-out:$@'
3811         else
3812             _ld_o='-Fe$@'
3813         fi
3814         _cc_o='-Fo$@'
3815         _cc_e='-P'
3816         _flags_filter=icl_flags
3817         _ld_lib='lib%.a'
3818         _ld_path='-libpath:'
3819         # -Qdiag-error to make icl error when seeing certain unknown arguments
3820         _flags='-nologo -Qdiag-error:4044,10157'
3821         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3822         # with MSVC which enables it by default.
3823         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3824         disable stripping
3825     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3826         _type=msvc
3827         _ident=$($_cc 2>&1 | head -n1)
3828         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3829         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3830         _cflags_speed="-O2"
3831         _cflags_size="-O1"
3832         if $_cc -nologo- 2>&1 | grep -q Linker; then
3833             _ld_o='-out:$@'
3834         else
3835             _ld_o='-Fe$@'
3836         fi
3837         _cc_o='-Fo$@'
3838         _cc_e='-P -Fi$@'
3839         _flags_filter=msvc_flags
3840         _ld_lib='lib%.a'
3841         _ld_path='-libpath:'
3842         _flags='-nologo'
3843         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3844         disable stripping
3845     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3846         _type=cparser
3847         _ident=$($_cc --version | head -n1)
3848         _depflags='-MMD'
3849         _cflags_speed='-O4'
3850         _cflags_size='-O2'
3851         _flags_filter=cparser_flags
3852     fi
3853
3854     eval ${pfx}_type=\$_type
3855     eval ${pfx}_ident=\$_ident
3856 }
3857
3858 set_ccvars(){
3859     eval ${1}_C=\${_cc_c-\${${1}_C}}
3860     eval ${1}_E=\${_cc_e-\${${1}_E}}
3861     eval ${1}_O=\${_cc_o-\${${1}_O}}
3862
3863     if [ -n "$_depflags" ]; then
3864         eval ${1}_DEPFLAGS=\$_depflags
3865     else
3866         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3867         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3868         eval DEP${1}FLAGS=\$_flags
3869     fi
3870 }
3871
3872 probe_cc cc "$cc" "true"
3873 cflags_filter=$_flags_filter
3874 cflags_speed=$_cflags_speed
3875 cflags_size=$_cflags_size
3876 cflags_noopt=$_cflags_noopt
3877 add_cflags $_flags $_cflags
3878 cc_ldflags=$_ldflags
3879 set_ccvars CC
3880
3881 probe_cc hostcc "$host_cc"
3882 host_cflags_filter=$_flags_filter
3883 add_host_cflags  $_flags $_cflags
3884 set_ccvars HOSTCC
3885
3886 test -n "$cc_type" && enable $cc_type ||
3887     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3888
3889 : ${as_default:=$cc}
3890 : ${objcc_default:=$cc}
3891 : ${dep_cc_default:=$cc}
3892 : ${ld_default:=$cc}
3893 : ${host_ld_default:=$host_cc}
3894 set_default ar as objcc dep_cc ld host_ld windres
3895
3896 probe_cc as "$as"
3897 asflags_filter=$_flags_filter
3898 add_asflags $_flags $_cflags
3899 set_ccvars AS
3900
3901 probe_cc objcc "$objcc"
3902 objcflags_filter=$_flags_filter
3903 add_objcflags $_flags $_cflags
3904 set_ccvars OBJC
3905
3906 probe_cc ld "$ld"
3907 ldflags_filter=$_flags_filter
3908 add_ldflags $_flags $_ldflags
3909 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3910 LD_O=${_ld_o-$LD_O}
3911 LD_LIB=${_ld_lib-$LD_LIB}
3912 LD_PATH=${_ld_path-$LD_PATH}
3913
3914 probe_cc hostld "$host_ld"
3915 host_ldflags_filter=$_flags_filter
3916 add_host_ldflags $_flags $_ldflags
3917 HOSTLD_O=${_ld_o-$HOSTLD_O}
3918
3919 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3920     probe_cc depcc "$dep_cc"
3921     CCDEP=${_DEPCMD:-$DEPCMD}
3922     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3923     DEPCCFLAGS=$_flags
3924 fi
3925
3926 if $ar 2>&1 | grep -q Microsoft; then
3927     arflags="-nologo"
3928     ar_o='-out:$@'
3929 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3930     arflags="rq"
3931     ar_o='$@'
3932 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3933     arflags='-Xany -r -c'
3934     ar_o='$@'
3935 elif $ar 2>&1 | grep -q "\[D\] "; then
3936     arflags="rcD"
3937     ar_o='$@'
3938 else
3939     arflags="rc"
3940     ar_o='$@'
3941 fi
3942
3943 add_cflags $extra_cflags
3944 add_cxxflags $extra_cxxflags
3945 add_objcflags $extra_objcflags
3946 add_asflags $extra_cflags
3947
3948 if test -n "$sysroot"; then
3949     case "$cc_type" in
3950         gcc|llvm_gcc|clang)
3951             add_cppflags --sysroot="$sysroot"
3952             add_ldflags --sysroot="$sysroot"
3953 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3954             add_cppflags -isysroot "$sysroot"
3955             add_ldflags -isysroot "$sysroot"
3956         ;;
3957         tms470)
3958             add_cppflags -I"$sysinclude"
3959             add_ldflags  --sysroot="$sysroot"
3960         ;;
3961     esac
3962 fi
3963
3964 if test "$cpu" = host; then
3965     enabled cross_compile &&
3966         die "--cpu=host makes no sense when cross-compiling."
3967
3968     case "$cc_type" in
3969         gcc|llvm_gcc)
3970             check_native(){
3971                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3972                 sed -n "/cc1.*$1=/{
3973                             s/.*$1=\\([^ ]*\\).*/\\1/
3974                             p
3975                             q
3976                         }" $TMPE
3977             }
3978             cpu=$(check_native -march || check_native -mcpu)
3979         ;;
3980     esac
3981
3982     test "${cpu:-host}" = host &&
3983         die "--cpu=host not supported with compiler $cc"
3984 fi
3985
3986 # Deal with common $arch aliases
3987 case "$arch" in
3988     aarch64|arm64)
3989         arch="aarch64"
3990     ;;
3991     arm*|iPad*|iPhone*)
3992         arch="arm"
3993     ;;
3994     mips*|IP*)
3995         arch="mips"
3996     ;;
3997     parisc*|hppa*)
3998         arch="parisc"
3999     ;;
4000     "Power Macintosh"|ppc*|powerpc*)
4001         arch="ppc"
4002     ;;
4003     s390|s390x)
4004         arch="s390"
4005     ;;
4006     sh4|sh)
4007         arch="sh4"
4008     ;;
4009     sun4u|sparc*)
4010         arch="sparc"
4011     ;;
4012     tilegx|tile-gx)
4013         arch="tilegx"
4014     ;;
4015     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4016         arch="x86"
4017     ;;
4018 esac
4019
4020 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4021 enable $arch
4022
4023 # Add processor-specific flags
4024 if enabled aarch64; then
4025
4026     case $cpu in
4027         armv*)
4028             cpuflags="-march=$cpu"
4029         ;;
4030         *)
4031             cpuflags="-mcpu=$cpu"
4032         ;;
4033     esac
4034
4035 elif enabled alpha; then
4036
4037     cpuflags="-mcpu=$cpu"
4038
4039 elif enabled arm; then
4040
4041     check_arm_arch() {
4042         check_cpp_condition stddef.h \
4043             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4044             $cpuflags
4045     }
4046
4047     probe_arm_arch() {
4048         if   check_arm_arch 4;        then echo armv4;
4049         elif check_arm_arch 4T;       then echo armv4t;
4050         elif check_arm_arch 5;        then echo armv5;
4051         elif check_arm_arch 5E;       then echo armv5e;
4052         elif check_arm_arch 5T;       then echo armv5t;
4053         elif check_arm_arch 5TE;      then echo armv5te;
4054         elif check_arm_arch 5TEJ;     then echo armv5te;
4055         elif check_arm_arch 6;        then echo armv6;
4056         elif check_arm_arch 6J;       then echo armv6j;
4057         elif check_arm_arch 6K;       then echo armv6k;
4058         elif check_arm_arch 6Z;       then echo armv6z;
4059         elif check_arm_arch 6ZK;      then echo armv6zk;
4060         elif check_arm_arch 6T2;      then echo armv6t2;
4061         elif check_arm_arch 7;        then echo armv7;
4062         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4063         elif check_arm_arch 7S;       then echo armv7-a;
4064         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4065         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4066         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4067         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4068         fi
4069     }
4070
4071     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4072
4073     case $cpu in
4074         armv*)
4075             cpuflags="-march=$cpu"
4076             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4077         ;;
4078         *)
4079             cpuflags="-mcpu=$cpu"
4080             case $cpu in
4081                 cortex-a*)                               subarch=armv7a  ;;
4082                 cortex-r*)                               subarch=armv7r  ;;
4083                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4084             &nbs