dxva2_h264: fix reference field marking in long slice struct
[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-libtesseract    enable Tesseract, needed for ocr filter [no]
254   --enable-libtheora       enable Theora encoding via libtheora [no]
255   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
256   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
257   --enable-libv4l2         enable libv4l2/v4l-utils [no]
258   --enable-libvidstab      enable video stabilization using vid.stab [no]
259   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
260   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
261   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
262                            native implementation exists [no]
263   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
264   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
265   --enable-libwebp         enable WebP encoding via libwebp [no]
266   --enable-libx264         enable H.264 encoding via x264 [no]
267   --enable-libx265         enable HEVC encoding via x265 [no]
268   --enable-libxavs         enable AVS encoding via xavs [no]
269   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
270   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
271   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
272   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
273   --enable-libxvid         enable Xvid encoding via xvidcore,
274                            native MPEG-4/Xvid encoder exists [no]
275   --enable-libzimg         enable z.lib, needed for zscale filter [no]
276   --enable-libzmq          enable message passing via libzmq [no]
277   --enable-libzvbi         enable teletext support via libzvbi [no]
278   --disable-lzma           disable lzma [autodetect]
279   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
280   --enable-mmal            enable decoding via MMAL [no]
281   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
282   --enable-nvenc           enable NVIDIA NVENC support [no]
283   --enable-openal          enable OpenAL 1.1 capture support [no]
284   --enable-opencl          enable OpenCL code
285   --enable-opengl          enable OpenGL rendering [no]
286   --enable-openssl         enable openssl, needed for https support
287                            if gnutls is not used [no]
288   --disable-schannel       disable SChannel SSP, needed for TLS support on
289                            Windows if openssl and gnutls are not used [autodetect]
290   --disable-sdl            disable sdl [autodetect]
291   --disable-securetransport disable Secure Transport, needed for TLS support
292                            on OSX if openssl and gnutls are not used [autodetect]
293   --enable-x11grab         enable X11 grabbing (legacy) [no]
294   --disable-xlib           disable xlib [autodetect]
295   --disable-zlib           disable zlib [autodetect]
296
297 Toolchain options:
298   --arch=ARCH              select architecture [$arch]
299   --cpu=CPU                select the minimum required CPU (affects
300                            instruction selection, may crash on older CPUs)
301   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
302   --progs-suffix=SUFFIX    program name suffix []
303   --enable-cross-compile   assume a cross-compiler is used
304   --sysroot=PATH           root of cross-build tree
305   --sysinclude=PATH        location of cross-build system headers
306   --target-os=OS           compiler targets OS [$target_os]
307   --target-exec=CMD        command to run executables on target
308   --target-path=DIR        path to view of build directory on target
309   --target-samples=DIR     path to samples directory on target
310   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
311   --toolchain=NAME         set tool defaults according to NAME
312   --nm=NM                  use nm tool NM [$nm_default]
313   --ar=AR                  use archive tool AR [$ar_default]
314   --as=AS                  use assembler AS [$as_default]
315   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
316   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
317   --cc=CC                  use C compiler CC [$cc_default]
318   --cxx=CXX                use C compiler CXX [$cxx_default]
319   --objcc=OCC              use ObjC compiler OCC [$cc_default]
320   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
321   --ld=LD                  use linker LD [$ld_default]
322   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
323   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
324   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
325   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
326   --host-cc=HOSTCC         use host C compiler HOSTCC
327   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
328   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
329   --host-ld=HOSTLD         use host linker HOSTLD
330   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
331   --host-libs=HLIBS        use libs HLIBS when linking for host
332   --host-os=OS             compiler host OS [$target_os]
333   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
334   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
335   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
336   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
337   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
338   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
339   --extra-libs=ELIBS       add ELIBS [$ELIBS]
340   --extra-version=STRING   version string suffix []
341   --optflags=OPTFLAGS      override optimization-related compiler flags
342   --build-suffix=SUFFIX    library name suffix []
343   --enable-pic             build position-independent code
344   --enable-thumb           compile for Thumb instruction set
345   --enable-lto             use link-time optimization
346   --env="ENV=override"     override the environment variables
347
348 Advanced options (experts only):
349   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
350   --custom-allocator=NAME  use a supported custom allocator
351   --disable-symver         disable symbol versioning
352   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
353   --disable-safe-bitstream-reader
354                            disable buffer boundary checking in bitreaders
355                            (faster, but may crash)
356   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
357   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
358
359 Optimization options (experts only):
360   --disable-asm            disable all assembly optimizations
361   --disable-altivec        disable AltiVec optimizations
362   --disable-vsx            disable VSX optimizations
363   --disable-power8         disable POWER8 optimizations
364   --disable-amd3dnow       disable 3DNow! optimizations
365   --disable-amd3dnowext    disable 3DNow! extended optimizations
366   --disable-mmx            disable MMX optimizations
367   --disable-mmxext         disable MMXEXT optimizations
368   --disable-sse            disable SSE optimizations
369   --disable-sse2           disable SSE2 optimizations
370   --disable-sse3           disable SSE3 optimizations
371   --disable-ssse3          disable SSSE3 optimizations
372   --disable-sse4           disable SSE4 optimizations
373   --disable-sse42          disable SSE4.2 optimizations
374   --disable-avx            disable AVX optimizations
375   --disable-xop            disable XOP optimizations
376   --disable-fma3           disable FMA3 optimizations
377   --disable-fma4           disable FMA4 optimizations
378   --disable-avx2           disable AVX2 optimizations
379   --disable-aesni          disable AESNI optimizations
380   --disable-armv5te        disable armv5te optimizations
381   --disable-armv6          disable armv6 optimizations
382   --disable-armv6t2        disable armv6t2 optimizations
383   --disable-vfp            disable VFP optimizations
384   --disable-neon           disable NEON optimizations
385   --disable-inline-asm     disable use of inline assembly
386   --disable-yasm           disable use of nasm/yasm assembly
387   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
388   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
389   --disable-msa            disable MSA optimizations
390   --disable-mipsfpu        disable floating point MIPS optimizations
391   --disable-mmi            disable Loongson SIMD optimizations
392   --disable-fast-unaligned consider unaligned accesses slow
393
394 Developer options (useful when working on FFmpeg itself):
395   --disable-debug          disable debugging symbols
396   --enable-debug=LEVEL     set the debug level [$debuglevel]
397   --disable-optimizations  disable compiler optimizations
398   --enable-extra-warnings  enable more compiler warnings
399   --disable-stripping      disable stripping of executables and shared libraries
400   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
401                            2 causes a slowdown at runtime.
402   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
403   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
404                            leaks and errors, using the specified valgrind binary.
405                            Cannot be combined with --target-exec
406   --enable-ftrapv          Trap arithmetic overflows
407   --samples=PATH           location of test samples for FATE, if not set use
408                            \$FATE_SAMPLES at make invocation time.
409   --enable-neon-clobber-test check NEON registers for clobbering (should be
410                            used only for debugging purposes)
411   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
412                            should be used only for debugging purposes)
413   --enable-random          randomly enable/disable components
414   --disable-random
415   --enable-random=LIST     randomly enable/disable specific components or
416   --disable-random=LIST    component groups. LIST is a comma-separated list
417                            of NAME[:PROB] entries where NAME is a component
418                            (group) and PROB the probability associated with
419                            NAME (default 0.5).
420   --random-seed=VALUE      seed value for --enable/disable-random
421   --disable-valgrind-backtrace do not print a backtrace under Valgrind
422                            (only applies to --disable-optimizations builds)
423
424 NOTE: Object files are built at the place where configure is launched.
425 EOF
426   exit 0
427 }
428
429 quotes='""'
430 if test -t 1 && which tput >/dev/null 2>&1; then
431     ncolors=$(tput colors)
432     if test -n "$ncolors" && test $ncolors -ge 8; then
433         bold_color=$(tput bold)
434         warn_color=$(tput setaf 3)
435         error_color=$(tput setaf 1)
436         reset_color=$(tput sgr0)
437     fi
438     # 72 used instead of 80 since that's the default of pr
439     ncols=$(tput cols)
440 fi
441 : ${ncols:=72}
442
443 log(){
444     echo "$@" >> $logfile
445 }
446
447 log_file(){
448     log BEGIN $1
449     pr -n -t $1 >> $logfile
450     log END $1
451 }
452
453 warn(){
454     log "WARNING: $*"
455     WARNINGS="${WARNINGS}WARNING: $*\n"
456 }
457
458 die(){
459     log "$@"
460     echo "$error_color$bold_color$@$reset_color"
461     cat <<EOF
462
463 If you think configure made a mistake, make sure you are using the latest
464 version from Git.  If the latest version fails, report the problem to the
465 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
466 EOF
467     if disabled logging; then
468         cat <<EOF
469 Rerun configure with logging enabled (do not use --disable-logging), and
470 include the log this produces with your report.
471 EOF
472     else
473         cat <<EOF
474 Include the log file "$logfile" produced by configure as this will help
475 solve the problem.
476 EOF
477     fi
478     exit 1
479 }
480
481 # Avoid locale weirdness, besides we really just want to translate ASCII.
482 toupper(){
483     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
484 }
485
486 tolower(){
487     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
488 }
489
490 c_escape(){
491     echo "$*" | sed 's/["\\]/\\\0/g'
492 }
493
494 sh_quote(){
495     v=$(echo "$1" | sed "s/'/'\\\\''/g")
496     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
497     echo "$v"
498 }
499
500 cleanws(){
501     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
502 }
503
504 filter(){
505     pat=$1
506     shift
507     for v; do
508         eval "case $v in $pat) echo $v ;; esac"
509     done
510 }
511
512 filter_out(){
513     pat=$1
514     shift
515     for v; do
516         eval "case $v in $pat) ;; *) echo $v ;; esac"
517     done
518 }
519
520 map(){
521     m=$1
522     shift
523     for v; do eval $m; done
524 }
525
526 add_suffix(){
527     suffix=$1
528     shift
529     for v; do echo ${v}${suffix}; done
530 }
531
532 set_all(){
533     value=$1
534     shift
535     for var in $*; do
536         eval $var=$value
537     done
538 }
539
540 set_weak(){
541     value=$1
542     shift
543     for var; do
544         eval : \${$var:=$value}
545     done
546 }
547
548 sanitize_var_name(){
549     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
550 }
551
552 set_safe(){
553     var=$1
554     shift
555     eval $(sanitize_var_name "$var")='$*'
556 }
557
558 get_safe(){
559     eval echo \$$(sanitize_var_name "$1")
560 }
561
562 pushvar(){
563     for pvar in $*; do
564         eval level=\${${pvar}_level:=0}
565         eval ${pvar}_${level}="\$$pvar"
566         eval ${pvar}_level=$(($level+1))
567     done
568 }
569
570 popvar(){
571     for pvar in $*; do
572         eval level=\${${pvar}_level:-0}
573         test $level = 0 && continue
574         eval level=$(($level-1))
575         eval $pvar="\${${pvar}_${level}}"
576         eval ${pvar}_level=$level
577         eval unset ${pvar}_${level}
578     done
579 }
580
581 enable(){
582     set_all yes $*
583 }
584
585 disable(){
586     set_all no $*
587 }
588
589 enable_weak(){
590     set_weak yes $*
591 }
592
593 disable_weak(){
594     set_weak no $*
595 }
596
597 enable_safe(){
598     for var; do
599         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
600     done
601 }
602
603 disable_safe(){
604     for var; do
605         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
606     done
607 }
608
609 do_enable_deep(){
610     for var; do
611         enabled $var && continue
612         eval sel="\$${var}_select"
613         eval sgs="\$${var}_suggest"
614         pushvar var sgs
615         enable_deep $sel
616         popvar sgs
617         enable_deep_weak $sgs
618         popvar var
619     done
620 }
621
622 enable_deep(){
623     do_enable_deep $*
624     enable $*
625 }
626
627 enable_deep_weak(){
628     for var; do
629         disabled $var && continue
630         pushvar var
631         do_enable_deep $var
632         popvar var
633         enable_weak $var
634     done
635 }
636
637 enabled(){
638     test "${1#!}" = "$1" && op='=' || op=!=
639     eval test "x\$${1#!}" $op "xyes"
640 }
641
642 disabled(){
643     test "${1#!}" = "$1" && op='=' || op=!=
644     eval test "x\$${1#!}" $op "xno"
645 }
646
647 enabled_all(){
648     for opt; do
649         enabled $opt || return 1
650     done
651 }
652
653 disabled_all(){
654     for opt; do
655         disabled $opt || return 1
656     done
657 }
658
659 enabled_any(){
660     for opt; do
661         enabled $opt && return 0
662     done
663 }
664
665 disabled_any(){
666     for opt; do
667         disabled $opt && return 0
668     done
669     return 1
670 }
671
672 set_default(){
673     for opt; do
674         eval : \${$opt:=\$${opt}_default}
675     done
676 }
677
678 is_in(){
679     value=$1
680     shift
681     for var in $*; do
682         [ $var = $value ] && return 0
683     done
684     return 1
685 }
686
687 do_check_deps(){
688     for cfg; do
689         cfg="${cfg#!}"
690         enabled ${cfg}_checking && die "Circular dependency for $cfg."
691         disabled ${cfg}_checking && continue
692         enable ${cfg}_checking
693         append allopts $cfg
694
695         eval dep_all="\$${cfg}_deps"
696         eval dep_any="\$${cfg}_deps_any"
697         eval dep_sel="\$${cfg}_select"
698         eval dep_sgs="\$${cfg}_suggest"
699         eval dep_ifa="\$${cfg}_if"
700         eval dep_ifn="\$${cfg}_if_any"
701
702         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
703         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
704         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
705
706         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
707         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
708         enabled_all  $dep_all || disable $cfg
709         enabled_any  $dep_any || disable $cfg
710         disabled_any $dep_sel && disable $cfg
711
712         if enabled $cfg; then
713             enable_deep $dep_sel
714             enable_deep_weak $dep_sgs
715         fi
716
717         disable ${cfg}_checking
718     done
719 }
720
721 check_deps(){
722     unset allopts
723
724     do_check_deps "$@"
725
726     for cfg in $allopts; do
727         enabled $cfg || continue
728         eval dep_extralibs="\$${cfg}_extralibs"
729         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
730     done
731 }
732
733 print_config(){
734     pfx=$1
735     files=$2
736     shift 2
737     map 'eval echo "$v \${$v:-no}"' "$@" |
738     awk "BEGIN { split(\"$files\", files) }
739         {
740             c = \"$pfx\" toupper(\$1);
741             v = \$2;
742             sub(/yes/, 1, v);
743             sub(/no/,  0, v);
744             for (f in files) {
745                 file = files[f];
746                 if (file ~ /\\.h\$/) {
747                     printf(\"#define %s %d\\n\", c, v) >>file;
748                 } else if (file ~ /\\.asm\$/) {
749                     printf(\"%%define %s %d\\n\", c, v) >>file;
750                 } else if (file ~ /\\.mak\$/) {
751                     n = -v ? \"\" : \"!\";
752                     printf(\"%s%s=yes\\n\", n, c) >>file;
753                 } else if (file ~ /\\.texi\$/) {
754                     pre = -v ? \"\" : \"@c \";
755                     yesno = \$2;
756                     c2 = tolower(c);
757                     gsub(/_/, \"-\", c2);
758                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
759                 }
760             }
761         }"
762 }
763
764 print_enabled(){
765     suf=$1
766     shift
767     for v; do
768         enabled $v && printf "%s\n" ${v%$suf};
769     done
770 }
771
772 append(){
773     var=$1
774     shift
775     eval "$var=\"\$$var $*\""
776 }
777
778 prepend(){
779     var=$1
780     shift
781     eval "$var=\"$* \$$var\""
782 }
783
784 unique(){
785     var=$1
786     uniq_list=""
787     for tok in $(eval echo \$$var); do
788         uniq_list="$(filter_out $tok $uniq_list) $tok"
789     done
790     eval "$var=\"${uniq_list}\""
791 }
792
793 add_cppflags(){
794     append CPPFLAGS "$@"
795 }
796
797 add_cflags(){
798     append CFLAGS $($cflags_filter "$@")
799 }
800
801 add_cxxflags(){
802     append CXXFLAGS $($cflags_filter "$@")
803 }
804
805 add_asflags(){
806     append ASFLAGS $($asflags_filter "$@")
807 }
808
809 add_objcflags(){
810     append OBJCFLAGS $($objcflags_filter "$@")
811 }
812
813 add_ldflags(){
814     append LDFLAGS $($ldflags_filter "$@")
815 }
816
817 add_ldexeflags(){
818     append LDEXEFLAGS $($ldflags_filter "$@")
819 }
820
821 add_ldlibflags(){
822     append LDLIBFLAGS $($ldflags_filter "$@")
823 }
824
825 add_stripflags(){
826     append ASMSTRIPFLAGS "$@"
827 }
828
829 add_extralibs(){
830     prepend extralibs $($ldflags_filter "$@")
831 }
832
833 add_host_cppflags(){
834     append host_cppflags "$@"
835 }
836
837 add_host_cflags(){
838     append host_cflags $($host_cflags_filter "$@")
839 }
840
841 add_host_ldflags(){
842     append host_ldflags $($host_ldflags_filter "$@")
843 }
844
845 add_compat(){
846     append compat_objs $1
847     shift
848     map 'add_cppflags -D$v' "$@"
849 }
850
851 check_cmd(){
852     log "$@"
853     "$@" >> $logfile 2>&1
854 }
855
856 check_stat(){
857     log check_stat "$@"
858     stat "$1" >> $logfile 2>&1
859 }
860
861 cc_o(){
862     eval printf '%s\\n' $CC_O
863 }
864
865 cc_e(){
866     eval printf '%s\\n' $CC_E
867 }
868
869 check_cc(){
870     log check_cc "$@"
871     cat > $TMPC
872     log_file $TMPC
873     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
874 }
875
876 check_cxx(){
877     log check_cxx "$@"
878     cat > $TMPCPP
879     log_file $TMPCPP
880     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
881 }
882
883 check_objcc(){
884     log check_objcc "$@"
885     cat > $TMPM
886     log_file $TMPM
887     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
888 }
889
890 check_cpp(){
891     log check_cpp "$@"
892     cat > $TMPC
893     log_file $TMPC
894     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
895 }
896
897 as_o(){
898     eval printf '%s\\n' $AS_O
899 }
900
901 check_as(){
902     log check_as "$@"
903     cat > $TMPS
904     log_file $TMPS
905     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
906 }
907
908 check_inline_asm(){
909     log check_inline_asm "$@"
910     name="$1"
911     code="$2"
912     shift 2
913     disable $name
914     check_cc "$@" <<EOF && enable $name
915 void foo(void){ __asm__ volatile($code); }
916 EOF
917 }
918
919 check_insn(){
920     log check_insn "$@"
921     check_inline_asm ${1}_inline "\"$2\""
922     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
923 }
924
925 check_yasm(){
926     log check_yasm "$@"
927     echo "$1" > $TMPS
928     log_file $TMPS
929     shift 1
930     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
931 }
932
933 ld_o(){
934     eval printf '%s\\n' $LD_O
935 }
936
937 check_ld(){
938     log check_ld "$@"
939     type=$1
940     shift 1
941     flags=$(filter_out '-l*|*.so' $@)
942     libs=$(filter '-l*|*.so' $@)
943     check_$type $($cflags_filter $flags) || return
944     flags=$($ldflags_filter $flags)
945     libs=$($ldflags_filter $libs)
946     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
947 }
948
949 print_include(){
950     hdr=$1
951     test "${hdr%.h}" = "${hdr}" &&
952         echo "#include $hdr"    ||
953         echo "#include <$hdr>"
954 }
955
956 check_code(){
957     log check_code "$@"
958     check=$1
959     headers=$2
960     code=$3
961     shift 3
962     {
963         for hdr in $headers; do
964             print_include $hdr
965         done
966         echo "int main(void) { $code; return 0; }"
967     } | check_$check "$@"
968 }
969
970 check_cppflags(){
971     log check_cppflags "$@"
972     check_cc "$@" <<EOF && append CPPFLAGS "$@"
973 int x;
974 EOF
975 }
976
977 test_cflags(){
978     log test_cflags "$@"
979     set -- $($cflags_filter "$@")
980     check_cc "$@" <<EOF
981 int x;
982 EOF
983 }
984
985 check_cflags(){
986     log check_cflags "$@"
987     test_cflags "$@" && add_cflags "$@"
988 }
989
990 check_cxxflags(){
991     log check_cxxflags "$@"
992     set -- $($cflags_filter "$@")
993     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
994 int x;
995 EOF
996 }
997
998 test_objcflags(){
999     log test_cflags "$@"
1000     set -- $($cflags_filter "$@")
1001     check_objcc "$@" <<EOF
1002 int x;
1003 EOF
1004 }
1005
1006 check_objcflags(){
1007     log check_cflags "$@"
1008     test_objcflags "$@" && add_objcflags "$@"
1009 }
1010
1011 test_ldflags(){
1012     log test_ldflags "$@"
1013     check_ld "cc" "$@" <<EOF
1014 int main(void){ return 0; }
1015 EOF
1016 }
1017
1018 check_ldflags(){
1019     log check_ldflags "$@"
1020     test_ldflags "$@" && add_ldflags "$@"
1021 }
1022
1023 test_stripflags(){
1024     log test_stripflags "$@"
1025     # call check_cc to get a fresh TMPO
1026     check_cc <<EOF
1027 int main(void) { return 0; }
1028 EOF
1029     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1030 }
1031
1032 check_stripflags(){
1033     log check_stripflags "$@"
1034     test_stripflags "$@" && add_stripflags "$@"
1035 }
1036
1037 check_header(){
1038     log check_header "$@"
1039     header=$1
1040     shift
1041     disable_safe $header
1042     check_cpp "$@" <<EOF && enable_safe $header
1043 #include <$header>
1044 int x;
1045 EOF
1046 }
1047
1048 check_header_objcc(){
1049     log check_header_objcc "$@"
1050     rm -f -- "$TMPO"
1051     header=$1
1052     shift
1053     disable_safe $header
1054     {
1055        echo "#include <$header>"
1056        echo "int main(void) { return 0; }"
1057     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1058 }
1059
1060 check_func(){
1061     log check_func "$@"
1062     func=$1
1063     shift
1064     disable $func
1065     check_ld "cc" "$@" <<EOF && enable $func
1066 extern int $func();
1067 int main(void){ $func(); }
1068 EOF
1069 }
1070
1071 check_complexfunc(){
1072     log check_complexfunc "$@"
1073     func=$1
1074     narg=$2
1075     shift 2
1076     test $narg = 2 && args="f, g" || args="f * I"
1077     disable $func
1078     check_ld "cc" "$@" <<EOF && enable $func
1079 #include <complex.h>
1080 #include <math.h>
1081 float foo(complex float f, complex float g) { return $func($args); }
1082 int main(void){ return (int) foo; }
1083 EOF
1084 }
1085
1086 check_mathfunc(){
1087     log check_mathfunc "$@"
1088     func=$1
1089     narg=$2
1090     shift 2
1091     test $narg = 2 && args="f, g" || args="f"
1092     disable $func
1093     check_ld "cc" "$@" <<EOF && enable $func
1094 #include <math.h>
1095 float foo(float f, float g) { return $func($args); }
1096 int main(void){ return (int) foo; }
1097 EOF
1098 }
1099
1100 check_func_headers(){
1101     log check_func_headers "$@"
1102     headers=$1
1103     funcs=$2
1104     shift 2
1105     {
1106         for hdr in $headers; do
1107             print_include $hdr
1108         done
1109         for func in $funcs; do
1110             echo "long check_$func(void) { return (long) $func; }"
1111         done
1112         echo "int main(void) { return 0; }"
1113     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1114 }
1115
1116 check_class_headers_cpp(){
1117     log check_class_headers_cpp "$@"
1118     headers=$1
1119     classes=$2
1120     shift 2
1121     {
1122         for hdr in $headers; do
1123             echo "#include <$hdr>"
1124         done
1125         echo "int main(void) { "
1126         i=1
1127         for class in $classes; do
1128             echo "$class obj$i;"
1129             i=$(expr $i + 1)
1130         done
1131         echo "return 0; }"
1132     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1133 }
1134
1135 check_cpp_condition(){
1136     log check_cpp_condition "$@"
1137     header=$1
1138     condition=$2
1139     shift 2
1140     check_cpp "$@" <<EOF
1141 #include <$header>
1142 #if !($condition)
1143 #error "unsatisfied condition: $condition"
1144 #endif
1145 EOF
1146 }
1147
1148 check_lib(){
1149     log check_lib "$@"
1150     header="$1"
1151     func="$2"
1152     shift 2
1153     check_header $header && check_func $func "$@" && add_extralibs "$@"
1154 }
1155
1156 check_lib2(){
1157     log check_lib2 "$@"
1158     headers="$1"
1159     funcs="$2"
1160     shift 2
1161     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1162 }
1163
1164 check_lib_cpp(){
1165     log check_lib_cpp "$@"
1166     headers="$1"
1167     classes="$2"
1168     shift 2
1169     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1170 }
1171
1172 check_pkg_config(){
1173     log check_pkg_config "$@"
1174     pkgandversion="$1"
1175     pkg="${1%% *}"
1176     headers="$2"
1177     funcs="$3"
1178     shift 3
1179     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1180     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1181     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1182     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1183         set_safe "${pkg}_cflags" $pkg_cflags   &&
1184         set_safe "${pkg}_libs"   $pkg_libs
1185 }
1186
1187 check_exec(){
1188     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1189 }
1190
1191 check_exec_crash(){
1192     code=$(cat)
1193
1194     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1195     # are safe but may not be available everywhere.  Thus we use
1196     # raise(SIGTERM) instead.  The check is run in a subshell so we
1197     # can redirect the "Terminated" message from the shell.  SIGBUS
1198     # is not defined by standard C so it is used conditionally.
1199
1200     (check_exec "$@") >> $logfile 2>&1 <<EOF
1201 #include <signal.h>
1202 static void sighandler(int sig){
1203     raise(SIGTERM);
1204 }
1205 int foo(void){
1206     $code
1207 }
1208 int (*func_ptr)(void) = foo;
1209 int main(void){
1210     signal(SIGILL, sighandler);
1211     signal(SIGFPE, sighandler);
1212     signal(SIGSEGV, sighandler);
1213 #ifdef SIGBUS
1214     signal(SIGBUS, sighandler);
1215 #endif
1216     return func_ptr();
1217 }
1218 EOF
1219 }
1220
1221 check_type(){
1222     log check_type "$@"
1223     headers=$1
1224     type=$2
1225     shift 2
1226     disable_safe "$type"
1227     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1228 }
1229
1230 check_struct(){
1231     log check_struct "$@"
1232     headers=$1
1233     struct=$2
1234     member=$3
1235     shift 3
1236     disable_safe "${struct}_${member}"
1237     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1238         enable_safe "${struct}_${member}"
1239 }
1240
1241 check_builtin(){
1242     log check_builtin "$@"
1243     name=$1
1244     headers=$2
1245     builtin=$3
1246     shift 3
1247     disable "$name"
1248     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1249 }
1250
1251 check_compile_assert(){
1252     log check_compile_assert "$@"
1253     name=$1
1254     headers=$2
1255     condition=$3
1256     shift 3
1257     disable "$name"
1258     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1259 }
1260
1261 require(){
1262     name="$1"
1263     header="$2"
1264     func="$3"
1265     shift 3
1266     check_lib $header $func "$@" || die "ERROR: $name not found"
1267 }
1268
1269 require2(){
1270     name="$1"
1271     headers="$2"
1272     func="$3"
1273     shift 3
1274     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1275 }
1276
1277 require_cpp(){
1278     name="$1"
1279     headers="$2"
1280     classes="$3"
1281     shift 3
1282     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1283 }
1284
1285 use_pkg_config(){
1286     pkg="$1"
1287     check_pkg_config "$@" || return 1
1288     add_cflags    $(get_safe "${pkg}_cflags")
1289     add_extralibs $(get_safe "${pkg}_libs")
1290 }
1291
1292 require_pkg_config(){
1293     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1294 }
1295
1296 require_libfreetype(){
1297     log require_libfreetype "$@"
1298     pkg="freetype2"
1299     check_cmd $pkg_config --exists --print-errors $pkg \
1300       || die "ERROR: $pkg not found"
1301     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1302     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1303     {
1304         echo "#include <ft2build.h>"
1305         echo "#include FT_FREETYPE_H"
1306         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1307         echo "int main(void) { return 0; }"
1308     } | check_ld "cc" $pkg_cflags $pkg_libs \
1309       && set_safe "${pkg}_cflags" $pkg_cflags \
1310       && set_safe "${pkg}_libs"   $pkg_libs \
1311       || die "ERROR: $pkg not found"
1312     add_cflags    $(get_safe "${pkg}_cflags")
1313     add_extralibs $(get_safe "${pkg}_libs")
1314 }
1315
1316 hostcc_e(){
1317     eval printf '%s\\n' $HOSTCC_E
1318 }
1319
1320 hostcc_o(){
1321     eval printf '%s\\n' $HOSTCC_O
1322 }
1323
1324 check_host_cc(){
1325     log check_host_cc "$@"
1326     cat > $TMPC
1327     log_file $TMPC
1328     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1329 }
1330
1331 check_host_cpp(){
1332     log check_host_cpp "$@"
1333     cat > $TMPC
1334     log_file $TMPC
1335     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1336 }
1337
1338 check_host_cppflags(){
1339     log check_host_cppflags "$@"
1340     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1341 int x;
1342 EOF
1343 }
1344
1345 check_host_cflags(){
1346     log check_host_cflags "$@"
1347     set -- $($host_cflags_filter "$@")
1348     check_host_cc "$@" <<EOF && append host_cflags "$@"
1349 int x;
1350 EOF
1351 }
1352
1353 check_host_cpp_condition(){
1354     log check_host_cpp_condition "$@"
1355     header=$1
1356     condition=$2
1357     shift 2
1358     check_host_cpp "$@" <<EOF
1359 #include <$header>
1360 #if !($condition)
1361 #error "unsatisfied condition: $condition"
1362 #endif
1363 EOF
1364 }
1365
1366 cp_if_changed(){
1367     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1368     mkdir -p "$(dirname $2)"
1369     $cp_f "$1" "$2"
1370 }
1371
1372 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1373 # system-dependent things.
1374
1375 AVCODEC_COMPONENTS="
1376     bsfs
1377     decoders
1378     encoders
1379     hwaccels
1380     parsers
1381 "
1382
1383 AVDEVICE_COMPONENTS="
1384     indevs
1385     outdevs
1386 "
1387 AVFILTER_COMPONENTS="
1388     filters
1389 "
1390 AVFORMAT_COMPONENTS="
1391     demuxers
1392     muxers
1393     protocols
1394 "
1395
1396 AVRESAMPLE_COMPONENTS=""
1397 AVUTIL_COMPONENTS=""
1398
1399 COMPONENT_LIST="
1400     $AVCODEC_COMPONENTS
1401     $AVDEVICE_COMPONENTS
1402     $AVFILTER_COMPONENTS
1403     $AVFORMAT_COMPONENTS
1404     $AVRESAMPLE_COMPONENTS
1405     $AVUTIL_COMPONENTS
1406 "
1407
1408 EXAMPLE_LIST="
1409     avio_reading_example
1410     avio_dir_cmd_example
1411     decoding_encoding_example
1412     demuxing_decoding_example
1413     extract_mvs_example
1414     filter_audio_example
1415     filtering_audio_example
1416     filtering_video_example
1417     metadata_example
1418     muxing_example
1419     qsvdec_example
1420     remuxing_example
1421     resampling_audio_example
1422     scaling_video_example
1423     transcode_aac_example
1424     transcoding_example
1425 "
1426
1427 EXTERNAL_LIBRARY_LIST="
1428     avisynth
1429     bzlib
1430     chromaprint
1431     crystalhd
1432     decklink
1433     frei0r
1434     gcrypt
1435     gmp
1436     gnutls
1437     iconv
1438     ladspa
1439     libaacplus
1440     libass
1441     libbluray
1442     libbs2b
1443     libcaca
1444     libcdio
1445     libcelt
1446     libdc1394
1447     libdcadec
1448     libfaac
1449     libfdk_aac
1450     libflite
1451     libfontconfig
1452     libfreetype
1453     libfribidi
1454     libgme
1455     libgsm
1456     libiec61883
1457     libilbc
1458     libkvazaar
1459     libmfx
1460     libmodplug
1461     libmp3lame
1462     libnut
1463     libopencore_amrnb
1464     libopencore_amrwb
1465     libopencv
1466     libopenh264
1467     libopenjpeg
1468     libopus
1469     libpulse
1470     libquvi
1471     librtmp
1472     librubberband
1473     libschroedinger
1474     libshine
1475     libsmbclient
1476     libsnappy
1477     libsoxr
1478     libspeex
1479     libssh
1480     libtesseract
1481     libtheora
1482     libtwolame
1483     libutvideo
1484     libv4l2
1485     libvidstab
1486     libvo_aacenc
1487     libvo_amrwbenc
1488     libvorbis
1489     libvpx
1490     libwavpack
1491     libwebp
1492     libx264
1493     libx265
1494     libxavs
1495     libxcb
1496     libxcb_shm
1497     libxcb_shape
1498     libxcb_xfixes
1499     libxvid
1500     libzimg
1501     libzmq
1502     libzvbi
1503     lzma
1504     mmal
1505     netcdf
1506     nvenc
1507     openal
1508     opencl
1509     opengl
1510     openssl
1511     schannel
1512     sdl
1513     securetransport
1514     x11grab
1515     xlib
1516     zlib
1517 "
1518
1519 DOCUMENT_LIST="
1520     doc
1521     htmlpages
1522     manpages
1523     podpages
1524     txtpages
1525 "
1526
1527 FEATURE_LIST="
1528     ftrapv
1529     gray
1530     hardcoded_tables
1531     runtime_cpudetect
1532     safe_bitstream_reader
1533     shared
1534     small
1535     static
1536     swscale_alpha
1537 "
1538
1539 HWACCEL_LIST="
1540     d3d11va
1541     dxva2
1542     vaapi
1543     vda
1544     vdpau
1545     videotoolbox
1546     xvmc
1547 "
1548
1549 LIBRARY_LIST="
1550     avcodec
1551     avdevice
1552     avfilter
1553     avformat
1554     avresample
1555     avutil
1556     postproc
1557     swresample
1558     swscale
1559 "
1560
1561 LICENSE_LIST="
1562     gpl
1563     nonfree
1564     version3
1565 "
1566
1567 PROGRAM_LIST="
1568     ffplay
1569     ffprobe
1570     ffserver
1571     ffmpeg
1572 "
1573
1574 SUBSYSTEM_LIST="
1575     dct
1576     dwt
1577     error_resilience
1578     faan
1579     fast_unaligned
1580     fft
1581     lsp
1582     lzo
1583     mdct
1584     pixelutils
1585     network
1586     rdft
1587 "
1588
1589 CONFIG_LIST="
1590     $COMPONENT_LIST
1591     $DOCUMENT_LIST
1592     $EXAMPLE_LIST
1593     $EXTERNAL_LIBRARY_LIST
1594     $FEATURE_LIST
1595     $HWACCEL_LIST
1596     $LICENSE_LIST
1597     $LIBRARY_LIST
1598     $PROGRAM_LIST
1599     $SUBSYSTEM_LIST
1600     fontconfig
1601     incompatible_libav_abi
1602     memalign_hack
1603     memory_poisoning
1604     neon_clobber_test
1605     pic
1606     pod2man
1607     raise_major
1608     thumb
1609     valgrind_backtrace
1610     xmm_clobber_test
1611 "
1612
1613 THREADS_LIST="
1614     pthreads
1615     os2threads
1616     w32threads
1617 "
1618
1619 ATOMICS_LIST="
1620     atomics_gcc
1621     atomics_suncc
1622     atomics_win32
1623 "
1624
1625 ARCH_LIST="
1626     aarch64
1627     alpha
1628     arm
1629     avr32
1630     avr32_ap
1631     avr32_uc
1632     bfin
1633     ia64
1634     m68k
1635     mips
1636     mips64
1637     parisc
1638     ppc
1639     ppc64
1640     s390
1641     sh4
1642     sparc
1643     sparc64
1644     tilegx
1645     tilepro
1646     tomi
1647     x86
1648     x86_32
1649     x86_64
1650 "
1651
1652 ARCH_EXT_LIST_ARM="
1653     armv5te
1654     armv6
1655     armv6t2
1656     armv8
1657     neon
1658     vfp
1659     vfpv3
1660     setend
1661 "
1662
1663 ARCH_EXT_LIST_MIPS="
1664     mipsfpu
1665     mips32r2
1666     mips64r2
1667     mips32r6
1668     mips64r6
1669     mipsdsp
1670     mipsdspr2
1671     msa
1672 "
1673
1674 ARCH_EXT_LIST_LOONGSON="
1675     loongson2
1676     loongson3
1677     mmi
1678 "
1679
1680 ARCH_EXT_LIST_X86_SIMD="
1681     aesni
1682     amd3dnow
1683     amd3dnowext
1684     avx
1685     avx2
1686     fma3
1687     fma4
1688     mmx
1689     mmxext
1690     sse
1691     sse2
1692     sse3
1693     sse4
1694     sse42
1695     ssse3
1696     xop
1697 "
1698
1699 ARCH_EXT_LIST_PPC="
1700     altivec
1701     dcbzl
1702     ldbrx
1703     power8
1704     ppc4xx
1705     vsx
1706 "
1707
1708 ARCH_EXT_LIST_X86="
1709     $ARCH_EXT_LIST_X86_SIMD
1710     cpunop
1711     i686
1712 "
1713
1714 ARCH_EXT_LIST="
1715     $ARCH_EXT_LIST_ARM
1716     $ARCH_EXT_LIST_PPC
1717     $ARCH_EXT_LIST_X86
1718     $ARCH_EXT_LIST_MIPS
1719     $ARCH_EXT_LIST_LOONGSON
1720 "
1721
1722 ARCH_FEATURES="
1723     aligned_stack
1724     fast_64bit
1725     fast_clz
1726     fast_cmov
1727     local_aligned_8
1728     local_aligned_16
1729     local_aligned_32
1730     simd_align_16
1731 "
1732
1733 BUILTIN_LIST="
1734     atomic_cas_ptr
1735     atomic_compare_exchange
1736     machine_rw_barrier
1737     MemoryBarrier
1738     mm_empty
1739     rdtsc
1740     sarestart
1741     sync_val_compare_and_swap
1742 "
1743 HAVE_LIST_CMDLINE="
1744     inline_asm
1745     symver
1746     yasm
1747 "
1748
1749 HAVE_LIST_PUB="
1750     bigendian
1751     fast_unaligned
1752     incompatible_libav_abi
1753 "
1754
1755 HEADERS_LIST="
1756     alsa_asoundlib_h
1757     altivec_h
1758     arpa_inet_h
1759     asm_types_h
1760     cdio_paranoia_h
1761     cdio_paranoia_paranoia_h
1762     dev_bktr_ioctl_bt848_h
1763     dev_bktr_ioctl_meteor_h
1764     dev_ic_bt8xx_h
1765     dev_video_bktr_ioctl_bt848_h
1766     dev_video_meteor_ioctl_meteor_h
1767     direct_h
1768     dirent_h
1769     dlfcn_h
1770     d3d11_h
1771     dxva_h
1772     ES2_gl_h
1773     gsm_h
1774     io_h
1775     mach_mach_time_h
1776     machine_ioctl_bt848_h
1777     machine_ioctl_meteor_h
1778     malloc_h
1779     openjpeg_2_1_openjpeg_h
1780     openjpeg_2_0_openjpeg_h
1781     openjpeg_1_5_openjpeg_h
1782     OpenGL_gl3_h
1783     poll_h
1784     sndio_h
1785     soundcard_h
1786     sys_mman_h
1787     sys_param_h
1788     sys_resource_h
1789     sys_select_h
1790     sys_soundcard_h
1791     sys_time_h
1792     sys_un_h
1793     sys_videoio_h
1794     termios_h
1795     udplite_h
1796     unistd_h
1797     valgrind_valgrind_h
1798     windows_h
1799     winsock2_h
1800 "
1801
1802 INTRINSICS_LIST="
1803     intrinsics_neon
1804 "
1805
1806 COMPLEX_FUNCS="
1807     cabs
1808     cexp
1809 "
1810
1811 MATH_FUNCS="
1812     atanf
1813     atan2f
1814     cbrt
1815     cbrtf
1816     copysign
1817     cosf
1818     erf
1819     exp2
1820     exp2f
1821     expf
1822     hypot
1823     isfinite
1824     isinf
1825     isnan
1826     ldexpf
1827     llrint
1828     llrintf
1829     log2
1830     log2f
1831     log10f
1832     lrint
1833     lrintf
1834     powf
1835     rint
1836     round
1837     roundf
1838     sinf
1839     trunc
1840     truncf
1841 "
1842
1843 SYSTEM_FUNCS="
1844     access
1845     aligned_malloc
1846     arc4random
1847     clock_gettime
1848     closesocket
1849     CommandLineToArgvW
1850     CoTaskMemFree
1851     CryptGenRandom
1852     dlopen
1853     fcntl
1854     flt_lim
1855     fork
1856     getaddrinfo
1857     gethrtime
1858     getopt
1859     GetProcessAffinityMask
1860     GetProcessMemoryInfo
1861     GetProcessTimes
1862     getrusage
1863     GetSystemTimeAsFileTime
1864     gettimeofday
1865     glob
1866     glXGetProcAddress
1867     gmtime_r
1868     inet_aton
1869     isatty
1870     jack_port_get_latency_range
1871     kbhit
1872     localtime_r
1873     lstat
1874     lzo1x_999_compress
1875     mach_absolute_time
1876     MapViewOfFile
1877     memalign
1878     mkstemp
1879     mmap
1880     mprotect
1881     nanosleep
1882     PeekNamedPipe
1883     posix_memalign
1884     pthread_cancel
1885     sched_getaffinity
1886     SetConsoleTextAttribute
1887     SetConsoleCtrlHandler
1888     setmode
1889     setrlimit
1890     Sleep
1891     strerror_r
1892     sysconf
1893     sysctl
1894     usleep
1895     UTGetOSTypeFromString
1896     VirtualAlloc
1897     wglGetProcAddress
1898 "
1899
1900 TOOLCHAIN_FEATURES="
1901     as_dn_directive
1902     as_func
1903     as_object_arch
1904     asm_mod_q
1905     attribute_may_alias
1906     attribute_packed
1907     ebp_available
1908     ebx_available
1909     gnu_as
1910     gnu_windres
1911     ibm_asm
1912     inline_asm_labels
1913     inline_asm_nonlocal_labels
1914     inline_asm_direct_symbol_refs
1915     pragma_deprecated
1916     rsync_contimeout
1917     symver_asm_label
1918     symver_gnu_asm
1919     vfp_args
1920     xform_asm
1921     xmm_clobbers
1922 "
1923
1924 TYPES_LIST="
1925     CONDITION_VARIABLE_Ptr
1926     socklen_t
1927     struct_addrinfo
1928     struct_group_source_req
1929     struct_ip_mreq_source
1930     struct_ipv6_mreq
1931     struct_pollfd
1932     struct_rusage_ru_maxrss
1933     struct_sctp_event_subscribe
1934     struct_sockaddr_in6
1935     struct_sockaddr_sa_len
1936     struct_sockaddr_storage
1937     struct_stat_st_mtim_tv_nsec
1938     struct_v4l2_frmivalenum_discrete
1939 "
1940
1941 HAVE_LIST="
1942     $ARCH_EXT_LIST
1943     $(add_suffix _external $ARCH_EXT_LIST)
1944     $(add_suffix _inline   $ARCH_EXT_LIST)
1945     $ARCH_FEATURES
1946     $ATOMICS_LIST
1947     $BUILTIN_LIST
1948     $COMPLEX_FUNCS
1949     $HAVE_LIST_CMDLINE
1950     $HAVE_LIST_PUB
1951     $HEADERS_LIST
1952     $INTRINSICS_LIST
1953     $MATH_FUNCS
1954     $SYSTEM_FUNCS
1955     $THREADS_LIST
1956     $TOOLCHAIN_FEATURES
1957     $TYPES_LIST
1958     atomics_native
1959     dos_paths
1960     dxva2api_cobj
1961     dxva2_lib
1962     winrt
1963     libc_msvcrt
1964     libdc1394_1
1965     libdc1394_2
1966     makeinfo
1967     makeinfo_html
1968     perl
1969     pod2man
1970     sdl
1971     section_data_rel_ro
1972     texi2html
1973     threads
1974     vaapi_x11
1975     vdpau_x11
1976     xlib
1977 "
1978
1979 # options emitted with CONFIG_ prefix but not available on the command line
1980 CONFIG_EXTRA="
1981     aandcttables
1982     ac3dsp
1983     audio_frame_queue
1984     audiodsp
1985     blockdsp
1986     bswapdsp
1987     cabac
1988     dirac_parse
1989     dvprofile
1990     exif
1991     faandct
1992     faanidct
1993     fdctdsp
1994     flacdsp
1995     fmtconvert
1996     frame_thread_encoder
1997     g722dsp
1998     golomb
1999     gplv3
2000     h263dsp
2001     h264chroma
2002     h264dsp
2003     h264pred
2004     h264qpel
2005     hpeldsp
2006     huffman
2007     huffyuvdsp
2008     huffyuvencdsp
2009     idctdsp
2010     iirfilter
2011     imdct15
2012     intrax8
2013     ividsp
2014     jpegtables
2015     libx262
2016     lgplv3
2017     llauddsp
2018     llviddsp
2019     lpc
2020     lzf
2021     me_cmp
2022     mpeg_er
2023     mpegaudio
2024     mpegaudiodsp
2025     mpegvideo
2026     mpegvideoenc
2027     mss34dsp
2028     pixblockdsp
2029     qpeldsp
2030     qsv
2031     qsvdec
2032     qsvenc
2033     rangecoder
2034     riffdec
2035     riffenc
2036     rtpdec
2037     rtpenc_chain
2038     rv34dsp
2039     sinewin
2040     snappy
2041     startcode
2042     texturedsp
2043     texturedspenc
2044     tpeldsp
2045     videodsp
2046     vp3dsp
2047     vp56dsp
2048     vp8dsp
2049     wma_freqs
2050     wmv2dsp
2051 "
2052
2053 CMDLINE_SELECT="
2054     $ARCH_EXT_LIST
2055     $CONFIG_LIST
2056     $HAVE_LIST_CMDLINE
2057     $THREADS_LIST
2058     asm
2059     cross_compile
2060     debug
2061     extra_warnings
2062     logging
2063     lto
2064     optimizations
2065     rpath
2066     stripping
2067 "
2068
2069 PATHS_LIST="
2070     bindir
2071     datadir
2072     docdir
2073     incdir
2074     libdir
2075     mandir
2076     pkgconfigdir
2077     prefix
2078     shlibdir
2079 "
2080
2081 CMDLINE_SET="
2082     $PATHS_LIST
2083     ar
2084     arch
2085     as
2086     assert_level
2087     build_suffix
2088     cc
2089     objcc
2090     cpu
2091     cross_prefix
2092     custom_allocator
2093     cxx
2094     dep_cc
2095     doxygen
2096     env
2097     extra_version
2098     gas
2099     host_cc
2100     host_cflags
2101     host_ld
2102     host_ldflags
2103     host_libs
2104     host_os
2105     install
2106     ld
2107     logfile
2108     malloc_prefix
2109     nm
2110     optflags
2111     pkg_config
2112     pkg_config_flags
2113     progs_suffix
2114     random_seed
2115     ranlib
2116     samples
2117     strip
2118     sws_max_filter_size
2119     sysinclude
2120     sysroot
2121     target_exec
2122     target_os
2123     target_path
2124     target_samples
2125     tempprefix
2126     toolchain
2127     valgrind
2128     yasmexe
2129 "
2130
2131 CMDLINE_APPEND="
2132     extra_cflags
2133     extra_cxxflags
2134     extra_objcflags
2135     host_cppflags
2136 "
2137
2138 # code dependency declarations
2139
2140 # architecture extensions
2141
2142 armv5te_deps="arm"
2143 armv6_deps="arm"
2144 armv6t2_deps="arm"
2145 armv8_deps="aarch64"
2146 neon_deps_any="aarch64 arm"
2147 intrinsics_neon_deps="neon"
2148 vfp_deps_any="aarch64 arm"
2149 vfpv3_deps="vfp"
2150 setend_deps="arm"
2151
2152 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2153
2154 mipsfpu_deps="mips"
2155 mipsdsp_deps="mips"
2156 mipsdspr2_deps="mips"
2157 mips32r2_deps="mips"
2158 mips32r6_deps="mips"
2159 mips64r2_deps="mips"
2160 mips64r6_deps="mips"
2161 msa_deps="mips"
2162 mmi_deps="mips"
2163
2164 altivec_deps="ppc"
2165 dcbzl_deps="ppc"
2166 ldbrx_deps="ppc"
2167 ppc4xx_deps="ppc"
2168 vsx_deps="altivec"
2169 power8_deps="vsx"
2170
2171 cpunop_deps="i686"
2172 x86_64_select="i686"
2173 x86_64_suggest="fast_cmov"
2174
2175 amd3dnow_deps="mmx"
2176 amd3dnowext_deps="amd3dnow"
2177 i686_deps="x86"
2178 mmx_deps="x86"
2179 mmxext_deps="mmx"
2180 sse_deps="mmxext"
2181 sse2_deps="sse"
2182 sse3_deps="sse2"
2183 ssse3_deps="sse3"
2184 sse4_deps="ssse3"
2185 sse42_deps="sse4"
2186 aesni_deps="sse42"
2187 avx_deps="sse42"
2188 xop_deps="avx"
2189 fma3_deps="avx"
2190 fma4_deps="avx"
2191 avx2_deps="avx"
2192
2193 mmx_external_deps="yasm"
2194 mmx_inline_deps="inline_asm"
2195 mmx_suggest="mmx_external mmx_inline"
2196
2197 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2198     eval dep=\$${ext}_deps
2199     eval ${ext}_external_deps='"${dep}_external"'
2200     eval ${ext}_inline_deps='"${dep}_inline"'
2201     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2202 done
2203
2204 aligned_stack_if_any="aarch64 ppc x86"
2205 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2206 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2207 fast_unaligned_if_any="aarch64 ppc x86"
2208 simd_align_16_if_any="altivec neon sse"
2209
2210 # system capabilities
2211 symver_if_any="symver_asm_label symver_gnu_asm"
2212 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2213
2214 # threading support
2215 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2216 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2217 atomics_win32_if="MemoryBarrier"
2218 atomics_native_if_any="$ATOMICS_LIST"
2219 w32threads_deps="atomics_native"
2220 threads_if_any="$THREADS_LIST"
2221
2222 # subsystems
2223 dct_select="rdft"
2224 dirac_parse_select="golomb"
2225 error_resilience_select="me_cmp"
2226 faandct_deps="faan fdctdsp"
2227 faanidct_deps="faan idctdsp"
2228 frame_thread_encoder_deps="encoders threads"
2229 intrax8_select="error_resilience"
2230 mdct_select="fft"
2231 rdft_select="fft"
2232 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2233 mpeg_er_select="error_resilience"
2234 mpegaudio_select="mpegaudiodsp"
2235 mpegaudiodsp_select="dct"
2236 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2237 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2238 qsvdec_select="qsv"
2239 qsvenc_select="qsv"
2240
2241 # decoders / encoders
2242 aac_decoder_select="imdct15 mdct sinewin"
2243 aac_fixed_decoder_select="mdct sinewin"
2244 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2245 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2246 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2247 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2248 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2249 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2250 adpcm_g722_decoder_select="g722dsp"
2251 adpcm_g722_encoder_select="g722dsp"
2252 aic_decoder_select="golomb idctdsp"
2253 alac_encoder_select="lpc"
2254 als_decoder_select="bswapdsp"
2255 amrnb_decoder_select="lsp"
2256 amrwb_decoder_select="lsp"
2257 amv_decoder_select="sp5x_decoder exif"
2258 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2259 ape_decoder_select="bswapdsp llauddsp"
2260 apng_decoder_select="zlib"
2261 apng_encoder_select="huffyuvencdsp zlib"
2262 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2263 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2264 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2265 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2266 atrac1_decoder_select="mdct sinewin"
2267 atrac3_decoder_select="mdct"
2268 atrac3p_decoder_select="mdct sinewin"
2269 avrn_decoder_select="exif jpegtables"
2270 bink_decoder_select="blockdsp hpeldsp"
2271 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2272 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2273 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2274 cllc_decoder_select="bswapdsp"
2275 comfortnoise_encoder_select="lpc"
2276 cook_decoder_select="audiodsp mdct sinewin"
2277 cscd_decoder_select="lzo"
2278 cscd_decoder_suggest="zlib"
2279 dca_decoder_select="fmtconvert mdct"
2280 dds_decoder_select="texturedsp"
2281 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2282 dnxhd_decoder_select="blockdsp idctdsp"
2283 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2284 dvvideo_decoder_select="dvprofile idctdsp"
2285 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2286 dxa_decoder_select="zlib"
2287 dxv_decoder_select="lzf texturedsp"
2288 eac3_decoder_select="ac3_decoder"
2289 eac3_encoder_select="ac3_encoder"
2290 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2291 eatgq_decoder_select="aandcttables"
2292 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2293 exr_decoder_select="zlib"
2294 ffv1_decoder_select="golomb rangecoder"
2295 ffv1_encoder_select="rangecoder"
2296 ffvhuff_decoder_select="huffyuv_decoder"
2297 ffvhuff_encoder_select="huffyuv_encoder"
2298 fic_decoder_select="golomb"
2299 flac_decoder_select="flacdsp golomb"
2300 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2301 flashsv_decoder_select="zlib"
2302 flashsv_encoder_select="zlib"
2303 flashsv2_encoder_select="zlib"
2304 flashsv2_decoder_select="zlib"
2305 flv_decoder_select="h263_decoder"
2306 flv_encoder_select="h263_encoder"
2307 fourxm_decoder_select="blockdsp bswapdsp"
2308 fraps_decoder_select="bswapdsp huffman"
2309 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2310 g729_decoder_select="audiodsp"
2311 h261_decoder_select="mpegvideo"
2312 h261_encoder_select="aandcttables mpegvideoenc"
2313 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2314 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2315 h263i_decoder_select="h263_decoder"
2316 h263p_decoder_select="h263_decoder"
2317 h263p_encoder_select="h263_encoder"
2318 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2319 h264_decoder_suggest="error_resilience"
2320 h264_qsv_decoder_deps="libmfx"
2321 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2322 h264_qsv_encoder_deps="libmfx"
2323 h264_qsv_encoder_select="qsvenc"
2324 hap_decoder_select="snappy texturedsp"
2325 hap_encoder_deps="libsnappy"
2326 hap_encoder_select="texturedspenc"
2327 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2328 hevc_qsv_encoder_deps="libmfx"
2329 hevc_qsv_decoder_deps="libmfx"
2330 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2331 hevc_qsv_encoder_select="qsvenc"
2332 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2333 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2334 iac_decoder_select="imc_decoder"
2335 imc_decoder_select="bswapdsp fft mdct sinewin"
2336 indeo3_decoder_select="hpeldsp"
2337 indeo4_decoder_select="ividsp"
2338 indeo5_decoder_select="ividsp"
2339 interplay_video_decoder_select="hpeldsp"
2340 jpegls_decoder_select="golomb mjpeg_decoder"
2341 jpegls_encoder_select="golomb"
2342 jv_decoder_select="blockdsp"
2343 lagarith_decoder_select="huffyuvdsp"
2344 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2345 loco_decoder_select="golomb"
2346 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2347 metasound_decoder_select="lsp mdct sinewin"
2348 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2349 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2350 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2351 mjpegb_decoder_select="mjpeg_decoder"
2352 mlp_decoder_select="mlp_parser"
2353 motionpixels_decoder_select="bswapdsp"
2354 mp1_decoder_select="mpegaudio"
2355 mp1float_decoder_select="mpegaudio"
2356 mp2_decoder_select="mpegaudio"
2357 mp2float_decoder_select="mpegaudio"
2358 mp3_decoder_select="mpegaudio"
2359 mp3adu_decoder_select="mpegaudio"
2360 mp3adufloat_decoder_select="mpegaudio"
2361 mp3float_decoder_select="mpegaudio"
2362 mp3on4_decoder_select="mpegaudio"
2363 mp3on4float_decoder_select="mpegaudio"
2364 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2365 mpc8_decoder_select="mpegaudiodsp"
2366 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2367 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2368 mpegvideo_decoder_select="mpegvideo"
2369 mpeg1video_decoder_select="mpegvideo"
2370 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2371 mpeg2video_decoder_select="mpegvideo"
2372 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2373 mpeg2_qsv_decoder_deps="libmfx"
2374 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2375 mpeg2_qsv_encoder_deps="libmfx"
2376 mpeg2_qsv_encoder_select="qsvenc"
2377 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2378 mpeg4_encoder_select="h263_encoder"
2379 msa1_decoder_select="mss34dsp"
2380 msmpeg4v1_decoder_select="h263_decoder"
2381 msmpeg4v2_decoder_select="h263_decoder"
2382 msmpeg4v2_encoder_select="h263_encoder"
2383 msmpeg4v3_decoder_select="h263_decoder"
2384 msmpeg4v3_encoder_select="h263_encoder"
2385 mss2_decoder_select="vc1_decoder"
2386 mts2_decoder_select="mss34dsp"
2387 mxpeg_decoder_select="mjpeg_decoder"
2388 nellymoser_decoder_select="mdct sinewin"
2389 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2390 nuv_decoder_select="idctdsp lzo"
2391 on2avc_decoder_select="mdct"
2392 opus_decoder_deps="swresample"
2393 opus_decoder_select="imdct15"
2394 png_decoder_select="zlib"
2395 png_encoder_select="huffyuvencdsp zlib"
2396 prores_decoder_select="blockdsp idctdsp"
2397 prores_encoder_select="fdctdsp"
2398 qcelp_decoder_select="lsp"
2399 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2400 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2401 ra_144_decoder_select="audiodsp"
2402 ralf_decoder_select="golomb"
2403 rawvideo_decoder_select="bswapdsp"
2404 rscc_decoder_select="zlib"
2405 rtjpeg_decoder_select="me_cmp"
2406 rv10_decoder_select="h263_decoder"
2407 rv10_encoder_select="h263_encoder"
2408 rv20_decoder_select="h263_decoder"
2409 rv20_encoder_select="h263_encoder"
2410 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2411 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2412 screenpresso_decoder_select="zlib"
2413 shorten_decoder_select="golomb"
2414 sipr_decoder_select="lsp"
2415 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2416 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2417 sonic_decoder_select="golomb rangecoder"
2418 sonic_encoder_select="golomb rangecoder"
2419 sonic_ls_encoder_select="golomb rangecoder"
2420 sp5x_decoder_select="mjpeg_decoder"
2421 svq1_decoder_select="hpeldsp"
2422 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2423 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2424 svq3_decoder_suggest="zlib"
2425 tak_decoder_select="audiodsp"
2426 tdsc_decoder_select="zlib mjpeg_decoder"
2427 theora_decoder_select="vp3_decoder"
2428 thp_decoder_select="mjpeg_decoder"
2429 tiff_decoder_suggest="zlib lzma"
2430 tiff_encoder_suggest="zlib"
2431 truehd_decoder_select="mlp_parser"
2432 truemotion2_decoder_select="bswapdsp"
2433 truespeech_decoder_select="bswapdsp"
2434 tscc_decoder_select="zlib"
2435 twinvq_decoder_select="mdct lsp sinewin"
2436 txd_decoder_select="texturedsp"
2437 utvideo_decoder_select="bswapdsp"
2438 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2439 vble_decoder_select="huffyuvdsp"
2440 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2441 vc1image_decoder_select="vc1_decoder"
2442 vc1_qsv_decoder_deps="libmfx"
2443 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2444 vorbis_decoder_select="mdct"
2445 vorbis_encoder_select="mdct"
2446 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2447 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2448 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2449 vp6a_decoder_select="vp6_decoder"
2450 vp6f_decoder_select="vp6_decoder"
2451 vp7_decoder_select="h264pred videodsp vp8dsp"
2452 vp8_decoder_select="h264pred videodsp vp8dsp"
2453 vp9_decoder_select="videodsp vp9_parser"
2454 webp_decoder_select="vp8_decoder"
2455 wmalossless_decoder_select="llauddsp"
2456 wmapro_decoder_select="mdct sinewin wma_freqs"
2457 wmav1_decoder_select="mdct sinewin wma_freqs"
2458 wmav1_encoder_select="mdct sinewin wma_freqs"
2459 wmav2_decoder_select="mdct sinewin wma_freqs"
2460 wmav2_encoder_select="mdct sinewin wma_freqs"
2461 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2462 wmv1_decoder_select="h263_decoder"
2463 wmv1_encoder_select="h263_encoder"
2464 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2465 wmv2_encoder_select="h263_encoder wmv2dsp"
2466 wmv3_decoder_select="vc1_decoder"
2467 wmv3image_decoder_select="wmv3_decoder"
2468 xma1_decoder_select="wmapro_decoder"
2469 xma2_decoder_select="wmapro_decoder"
2470 zerocodec_decoder_select="zlib"
2471 zlib_decoder_select="zlib"
2472 zlib_encoder_select="zlib"
2473 zmbv_decoder_select="zlib"
2474 zmbv_encoder_select="zlib"
2475
2476 # hardware accelerators
2477 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2478 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2479 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2480 vaapi_deps="va_va_h"
2481 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2482 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2483 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2484 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2485 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2486 xvmc_deps="X11_extensions_XvMClib_h"
2487
2488 h263_vaapi_hwaccel_deps="vaapi"
2489 h263_vaapi_hwaccel_select="h263_decoder"
2490 h263_videotoolbox_hwaccel_deps="videotoolbox"
2491 h263_videotoolbox_hwaccel_select="h263_decoder"
2492 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2493 h264_d3d11va_hwaccel_deps="d3d11va"
2494 h264_d3d11va_hwaccel_select="h264_decoder"
2495 h264_dxva2_hwaccel_deps="dxva2"
2496 h264_dxva2_hwaccel_select="h264_decoder"
2497 h264_mmal_decoder_deps="mmal"
2498 h264_mmal_hwaccel_deps="mmal"
2499 h264_mmal_decoder_select="h264_decoder"
2500 h264_mmal_encoder_deps="mmal"
2501 h264_qsv_hwaccel_deps="libmfx"
2502 h264_vaapi_hwaccel_deps="vaapi"
2503 h264_vaapi_hwaccel_select="h264_decoder"
2504 h264_vda_decoder_deps="vda"
2505 h264_vda_decoder_select="h264_decoder"
2506 h264_vda_hwaccel_deps="vda"
2507 h264_vda_hwaccel_select="h264_decoder"
2508 h264_vda_old_hwaccel_deps="vda"
2509 h264_vda_old_hwaccel_select="h264_decoder"
2510 h264_vdpau_decoder_deps="vdpau"
2511 h264_vdpau_decoder_select="h264_decoder"
2512 h264_vdpau_hwaccel_deps="vdpau"
2513 h264_vdpau_hwaccel_select="h264_decoder"
2514 h264_videotoolbox_hwaccel_deps="videotoolbox"
2515 h264_videotoolbox_hwaccel_select="h264_decoder"
2516 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2517 hevc_d3d11va_hwaccel_select="hevc_decoder"
2518 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2519 hevc_dxva2_hwaccel_select="hevc_decoder"
2520 hevc_qsv_hwaccel_deps="libmfx"
2521 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2522 hevc_vaapi_hwaccel_select="hevc_decoder"
2523 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2524 hevc_vdpau_hwaccel_select="hevc_decoder"
2525 mpeg_vdpau_decoder_deps="vdpau"
2526 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2527 mpeg_xvmc_hwaccel_deps="xvmc"
2528 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2529 mpeg1_vdpau_decoder_deps="vdpau"
2530 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2531 mpeg1_vdpau_hwaccel_deps="vdpau"
2532 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2533 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2534 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2535 mpeg1_xvmc_hwaccel_deps="xvmc"
2536 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2537 mpeg2_crystalhd_decoder_select="crystalhd"
2538 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2539 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2540 mpeg2_dxva2_hwaccel_deps="dxva2"
2541 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2542 mpeg2_mmal_decoder_deps="mmal"
2543 mpeg2_mmal_hwaccel_deps="mmal"
2544 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2545 mpeg2_qsv_hwaccel_deps="libmfx"
2546 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2547 mpeg2_vaapi_hwaccel_deps="vaapi"
2548 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2549 mpeg2_vdpau_hwaccel_deps="vdpau"
2550 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2551 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2552 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2553 mpeg2_xvmc_hwaccel_deps="xvmc"
2554 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2555 mpeg4_crystalhd_decoder_select="crystalhd"
2556 mpeg4_vaapi_hwaccel_deps="vaapi"
2557 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2558 mpeg4_vdpau_decoder_deps="vdpau"
2559 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2560 mpeg4_vdpau_hwaccel_deps="vdpau"
2561 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2562 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2563 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2564 msmpeg4_crystalhd_decoder_select="crystalhd"
2565 vc1_crystalhd_decoder_select="crystalhd"
2566 vc1_d3d11va_hwaccel_deps="d3d11va"
2567 vc1_d3d11va_hwaccel_select="vc1_decoder"
2568 vc1_dxva2_hwaccel_deps="dxva2"
2569 vc1_dxva2_hwaccel_select="vc1_decoder"
2570 vc1_vaapi_hwaccel_deps="vaapi"
2571 vc1_vaapi_hwaccel_select="vc1_decoder"
2572 vc1_vdpau_decoder_deps="vdpau"
2573 vc1_vdpau_decoder_select="vc1_decoder"
2574 vc1_vdpau_hwaccel_deps="vdpau"
2575 vc1_vdpau_hwaccel_select="vc1_decoder"
2576 vc1_mmal_decoder_deps="mmal"
2577 vc1_mmal_hwaccel_deps="mmal"
2578 vc1_mmal_decoder_select="vc1_decoder"
2579 vc1_qsv_hwaccel_deps="libmfx"
2580 vc1_qsv_hwaccel_select="qsvdec_vc1"
2581 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2582 vp9_d3d11va_hwaccel_select="vp9_decoder"
2583 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2584 vp9_dxva2_hwaccel_select="vp9_decoder"
2585 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2586 vp9_vaapi_hwaccel_select="vp9_decoder"
2587 wmv3_crystalhd_decoder_select="crystalhd"
2588 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2589 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2590 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2591 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2592 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2593
2594 # parsers
2595 h264_parser_select="h264_decoder"
2596 hevc_parser_select="golomb"
2597 mpegvideo_parser_select="mpegvideo"
2598 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2599 vc1_parser_select="mpegvideo startcode vc1_decoder"
2600
2601 # bitstream_filters
2602 mjpeg2jpeg_bsf_select="jpegtables"
2603
2604 # external libraries
2605 chromaprint_muxer_deps="chromaprint"
2606 libaacplus_encoder_deps="libaacplus"
2607 libcelt_decoder_deps="libcelt"
2608 libdcadec_decoder_deps="libdcadec"
2609 libfaac_encoder_deps="libfaac"
2610 libfaac_encoder_select="audio_frame_queue"
2611 libfdk_aac_decoder_deps="libfdk_aac"
2612 libfdk_aac_encoder_deps="libfdk_aac"
2613 libfdk_aac_encoder_select="audio_frame_queue"
2614 libgme_demuxer_deps="libgme"
2615 libgsm_decoder_deps="libgsm"
2616 libgsm_encoder_deps="libgsm"
2617 libgsm_ms_decoder_deps="libgsm"
2618 libgsm_ms_encoder_deps="libgsm"
2619 libilbc_decoder_deps="libilbc"
2620 libilbc_encoder_deps="libilbc"
2621 libkvazaar_encoder_deps="libkvazaar"
2622 libmodplug_demuxer_deps="libmodplug"
2623 libmp3lame_encoder_deps="libmp3lame"
2624 libmp3lame_encoder_select="audio_frame_queue"
2625 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2626 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2627 libopencore_amrnb_encoder_select="audio_frame_queue"
2628 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2629 libopenh264_encoder_deps="libopenh264"
2630 libopenjpeg_decoder_deps="libopenjpeg"
2631 libopenjpeg_encoder_deps="libopenjpeg"
2632 libopus_decoder_deps="libopus"
2633 libopus_encoder_deps="libopus"
2634 libopus_encoder_select="audio_frame_queue"
2635 libquvi_demuxer_deps="libquvi"
2636 libschroedinger_decoder_deps="libschroedinger"
2637 libschroedinger_encoder_deps="libschroedinger"
2638 libshine_encoder_deps="libshine"
2639 libshine_encoder_select="audio_frame_queue"
2640 libspeex_decoder_deps="libspeex"
2641 libspeex_encoder_deps="libspeex"
2642 libspeex_encoder_select="audio_frame_queue"
2643 libtheora_encoder_deps="libtheora"
2644 libtwolame_encoder_deps="libtwolame"
2645 libvo_aacenc_encoder_deps="libvo_aacenc"
2646 libvo_aacenc_encoder_select="audio_frame_queue"
2647 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2648 libvorbis_decoder_deps="libvorbis"
2649 libvorbis_encoder_deps="libvorbis"
2650 libvorbis_encoder_select="audio_frame_queue"
2651 libvpx_vp8_decoder_deps="libvpx"
2652 libvpx_vp8_encoder_deps="libvpx"
2653 libvpx_vp9_decoder_deps="libvpx"
2654 libvpx_vp9_encoder_deps="libvpx"
2655 libwavpack_encoder_deps="libwavpack"
2656 libwebp_encoder_deps="libwebp"
2657 libwebp_anim_encoder_deps="libwebp"
2658 libx262_encoder_deps="libx262"
2659 libx264_encoder_deps="libx264"
2660 libx264rgb_encoder_deps="libx264"
2661 libx264rgb_encoder_select="libx264_encoder"
2662 libx265_encoder_deps="libx265"
2663 libxavs_encoder_deps="libxavs"
2664 libxvid_encoder_deps="libxvid"
2665 libutvideo_decoder_deps="libutvideo"
2666 libutvideo_encoder_deps="libutvideo"
2667 libzvbi_teletext_decoder_deps="libzvbi"
2668 nvenc_encoder_deps="nvenc"
2669 nvenc_h264_encoder_deps="nvenc"
2670 nvenc_hevc_encoder_deps="nvenc"
2671
2672 # demuxers / muxers
2673 ac3_demuxer_select="ac3_parser"
2674 asf_demuxer_select="riffdec"
2675 asf_o_demuxer_select="riffdec"
2676 asf_muxer_select="riffenc"
2677 asf_stream_muxer_select="asf_muxer"
2678 avi_demuxer_select="riffdec exif"
2679 avi_muxer_select="riffenc"
2680 avisynth_demuxer_deps="avisynth"
2681 avisynth_demuxer_select="riffdec"
2682 caf_demuxer_select="riffdec"
2683 dash_muxer_select="mp4_muxer"
2684 dirac_demuxer_select="dirac_parser"
2685 dts_demuxer_select="dca_parser"
2686 dtshd_demuxer_select="dca_parser"
2687 dv_demuxer_select="dvprofile"
2688 dv_muxer_select="dvprofile"
2689 dxa_demuxer_select="riffdec"
2690 eac3_demuxer_select="ac3_parser"
2691 f4v_muxer_select="mov_muxer"
2692 flac_demuxer_select="flac_parser"
2693 hds_muxer_select="flv_muxer"
2694 hls_muxer_select="mpegts_muxer"
2695 image2_alias_pix_demuxer_select="image2_demuxer"
2696 image2_brender_pix_demuxer_select="image2_demuxer"
2697 ipod_muxer_select="mov_muxer"
2698 ismv_muxer_select="mov_muxer"
2699 libnut_demuxer_deps="libnut"
2700 libnut_muxer_deps="libnut"
2701 matroska_audio_muxer_select="matroska_muxer"
2702 matroska_demuxer_select="riffdec"
2703 matroska_demuxer_suggest="bzlib lzo zlib"
2704 matroska_muxer_select="riffenc"
2705 mmf_muxer_select="riffenc"
2706 mov_demuxer_select="riffdec"
2707 mov_demuxer_suggest="zlib"
2708 mov_muxer_select="riffenc rtpenc_chain"
2709 mp3_demuxer_select="mpegaudio_parser"
2710 mp4_muxer_select="mov_muxer"
2711 mpegts_muxer_select="adts_muxer latm_muxer"
2712 mpegtsraw_demuxer_select="mpegts_demuxer"
2713 mxf_d10_muxer_select="mxf_muxer"
2714 mxf_opatom_muxer_select="mxf_muxer"
2715 nut_muxer_select="riffenc"
2716 nuv_demuxer_select="riffdec"
2717 oga_muxer_select="ogg_muxer"
2718 ogg_demuxer_select="dirac_parse"
2719 opus_muxer_select="ogg_muxer"
2720 psp_muxer_select="mov_muxer"
2721 rtp_demuxer_select="sdp_demuxer"
2722 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2723 rtsp_demuxer_select="http_protocol rtpdec"
2724 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2725 sap_demuxer_select="sdp_demuxer"
2726 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2727 sdp_demuxer_select="rtpdec"
2728 smoothstreaming_muxer_select="ismv_muxer"
2729 spdif_muxer_select="aac_parser"
2730 spx_muxer_select="ogg_muxer"
2731 swf_demuxer_suggest="zlib"
2732 tak_demuxer_select="tak_parser"
2733 tg2_muxer_select="mov_muxer"
2734 tgp_muxer_select="mov_muxer"
2735 vobsub_demuxer_select="mpegps_demuxer"
2736 w64_demuxer_select="wav_demuxer"
2737 w64_muxer_select="wav_muxer"
2738 wav_demuxer_select="riffdec"
2739 wav_muxer_select="riffenc"
2740 webm_muxer_select="riffenc"
2741 wtv_demuxer_select="riffdec"
2742 wtv_muxer_select="riffenc"
2743 xmv_demuxer_select="riffdec"
2744 xwma_demuxer_select="riffdec"
2745
2746 # indevs / outdevs
2747 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2748 alsa_outdev_deps="alsa_asoundlib_h"
2749 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2750 avfoundation_indev_select="avfoundation"
2751 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2752 caca_outdev_deps="libcaca"
2753 decklink_outdev_deps="decklink pthreads"
2754 decklink_outdev_extralibs="-lstdc++"
2755 decklink_indev_deps="decklink pthreads"
2756 decklink_indev_extralibs="-lstdc++"
2757 dshow_indev_deps="IBaseFilter"
2758 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2759 dv1394_indev_deps="dv1394"
2760 dv1394_indev_select="dv_demuxer"
2761 fbdev_indev_deps="linux_fb_h"
2762 fbdev_outdev_deps="linux_fb_h"
2763 gdigrab_indev_deps="CreateDIBSection"
2764 gdigrab_indev_extralibs="-lgdi32"
2765 gdigrab_indev_select="bmp_decoder"
2766 iec61883_indev_deps="libiec61883"
2767 jack_indev_deps="jack_jack_h sem_timedwait"
2768 lavfi_indev_deps="avfilter"
2769 libcdio_indev_deps="libcdio"
2770 libdc1394_indev_deps="libdc1394"
2771 libv4l2_indev_deps="libv4l2"
2772 openal_indev_deps="openal"
2773 opengl_outdev_deps="opengl"
2774 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2775 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2776 pulse_indev_deps="libpulse"
2777 pulse_outdev_deps="libpulse"
2778 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2779 qtkit_indev_select="qtkit"
2780 sdl_outdev_deps="sdl"
2781 sndio_indev_deps="sndio_h"
2782 sndio_outdev_deps="sndio_h"
2783 v4l_indev_deps="linux_videodev_h"
2784 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2785 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2786 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2787 vfwcap_indev_extralibs="-lavicap32"
2788 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2789 xv_outdev_extralibs="-lXv -lX11 -lXext"
2790 x11grab_indev_deps="x11grab"
2791 x11grab_xcb_indev_deps="libxcb"
2792
2793 # protocols
2794 async_protocol_deps="threads"
2795 bluray_protocol_deps="libbluray"
2796 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2797 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2798 ffrtmpcrypt_protocol_select="tcp_protocol"
2799 ffrtmphttp_protocol_deps="!librtmp_protocol"
2800 ffrtmphttp_protocol_select="http_protocol"
2801 ftp_protocol_select="tcp_protocol"
2802 gopher_protocol_select="network"
2803 http_protocol_select="tcp_protocol"
2804 httpproxy_protocol_select="tcp_protocol"
2805 https_protocol_select="tls_protocol"
2806 icecast_protocol_select="http_protocol"
2807 librtmp_protocol_deps="librtmp"
2808 librtmpe_protocol_deps="librtmp"
2809 librtmps_protocol_deps="librtmp"
2810 librtmpt_protocol_deps="librtmp"
2811 librtmpte_protocol_deps="librtmp"
2812 libsmbclient_protocol_deps="libsmbclient gplv3"
2813 libssh_protocol_deps="libssh"
2814 mmsh_protocol_select="http_protocol"
2815 mmst_protocol_select="network"
2816 rtmp_protocol_deps="!librtmp_protocol"
2817 rtmp_protocol_select="tcp_protocol"
2818 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2819 rtmps_protocol_deps="!librtmp_protocol"
2820 rtmps_protocol_select="tls_protocol"
2821 rtmpt_protocol_select="ffrtmphttp_protocol"
2822 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2823 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2824 rtp_protocol_select="udp_protocol"
2825 sctp_protocol_deps="struct_sctp_event_subscribe"
2826 sctp_protocol_select="network"
2827 srtp_protocol_select="rtp_protocol"
2828 tcp_protocol_select="network"
2829 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2830 tls_gnutls_protocol_select="tcp_protocol"
2831 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2832 tls_openssl_protocol_select="tcp_protocol"
2833 tls_schannel_protocol_deps="schannel"
2834 tls_schannel_protocol_select="tcp_protocol"
2835 tls_securetransport_protocol_deps="securetransport"
2836 tls_securetransport_protocol_select="tcp_protocol"
2837 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2838 udp_protocol_select="network"
2839 udplite_protocol_select="network"
2840 unix_protocol_deps="sys_un_h"
2841 unix_protocol_select="network"
2842
2843 # filters
2844 afftfilt_filter_deps="avcodec"
2845 afftfilt_filter_select="fft"
2846 amovie_filter_deps="avcodec avformat"
2847 aresample_filter_deps="swresample"
2848 ass_filter_deps="libass"
2849 asyncts_filter_deps="avresample"
2850 atempo_filter_deps="avcodec"
2851 atempo_filter_select="rdft"
2852 azmq_filter_deps="libzmq"
2853 blackframe_filter_deps="gpl"
2854 boxblur_filter_deps="gpl"
2855 bs2b_filter_deps="libbs2b"
2856 colormatrix_filter_deps="gpl"
2857 cover_rect_filter_deps="avcodec avformat gpl"
2858 cropdetect_filter_deps="gpl"
2859 delogo_filter_deps="gpl"
2860 deshake_filter_select="pixelutils"
2861 drawtext_filter_deps="libfreetype"
2862 ebur128_filter_deps="gpl"
2863 eq_filter_deps="gpl"
2864 fftfilt_filter_deps="avcodec"
2865 fftfilt_filter_select="rdft"
2866 flite_filter_deps="libflite"
2867 find_rect_filter_deps="avcodec avformat gpl"
2868 frei0r_filter_deps="frei0r dlopen"
2869 frei0r_src_filter_deps="frei0r dlopen"
2870 fspp_filter_deps="gpl"
2871 geq_filter_deps="gpl"
2872 histeq_filter_deps="gpl"
2873 hqdn3d_filter_deps="gpl"
2874 interlace_filter_deps="gpl"
2875 kerndeint_filter_deps="gpl"
2876 ladspa_filter_deps="ladspa dlopen"
2877 mcdeint_filter_deps="avcodec gpl"
2878 movie_filter_deps="avcodec avformat"
2879 mpdecimate_filter_deps="gpl"
2880 mpdecimate_filter_select="pixelutils"
2881 mptestsrc_filter_deps="gpl"
2882 negate_filter_deps="lut_filter"
2883 perspective_filter_deps="gpl"
2884 pp7_filter_deps="gpl"
2885 ocr_filter_deps="libtesseract"
2886 ocv_filter_deps="libopencv"
2887 owdenoise_filter_deps="gpl"
2888 pan_filter_deps="swresample"
2889 phase_filter_deps="gpl"
2890 pp_filter_deps="gpl postproc"
2891 pullup_filter_deps="gpl"
2892 removelogo_filter_deps="avcodec avformat swscale"
2893 repeatfields_filter_deps="gpl"
2894 resample_filter_deps="avresample"
2895 rubberband_filter_deps="librubberband"
2896 sab_filter_deps="gpl swscale"
2897 scale_filter_deps="swscale"
2898 scale2ref_filter_deps="swscale"
2899 select_filter_select="pixelutils"
2900 smartblur_filter_deps="gpl swscale"
2901 showcqt_filter_deps="avcodec avformat swscale"
2902 showcqt_filter_select="fft"
2903 showfreqs_filter_deps="avcodec"
2904 showfreqs_filter_select="fft"
2905 showspectrum_filter_deps="avcodec"
2906 showspectrum_filter_select="fft"
2907 showspectrumpic_filter_deps="avcodec"
2908 showspectrumpic_filter_select="fft"
2909 sofalizer_filter_deps="netcdf avcodec"
2910 sofalizer_filter_select="fft"
2911 spectrumsynth_filter_deps="avcodec"
2912 spectrumsynth_filter_select="fft"
2913 spp_filter_deps="gpl avcodec"
2914 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2915 stereo3d_filter_deps="gpl"
2916 subtitles_filter_deps="avformat avcodec libass"
2917 super2xsai_filter_deps="gpl"
2918 tinterlace_filter_deps="gpl"
2919 vidstabdetect_filter_deps="libvidstab"
2920 vidstabtransform_filter_deps="libvidstab"
2921 pixfmts_super2xsai_test_deps="super2xsai_filter"
2922 tinterlace_merge_test_deps="tinterlace_filter"
2923 tinterlace_pad_test_deps="tinterlace_filter"
2924 uspp_filter_deps="gpl avcodec"
2925 zmq_filter_deps="libzmq"
2926 zoompan_filter_deps="swscale"
2927 zscale_filter_deps="libzimg"
2928
2929 # examples
2930 avio_reading="avformat avcodec avutil"
2931 avio_dir_cmd="avformat avutil"
2932 avcodec_example_deps="avcodec avutil"
2933 decoding_encoding_example_deps="avcodec avformat avutil"
2934 demuxing_decoding_example_deps="avcodec avformat avutil"
2935 extract_mvs_example_deps="avcodec avformat avutil"
2936 filter_audio_example_deps="avfilter avutil"
2937 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2938 filtering_video_example_deps="avfilter avcodec avformat avutil"
2939 metadata_example_deps="avformat avutil"
2940 muxing_example_deps="avcodec avformat avutil swscale"
2941 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2942 remuxing_example_deps="avcodec avformat avutil"
2943 resampling_audio_example_deps="avutil swresample"
2944 scaling_video_example_deps="avutil swscale"
2945 transcode_aac_example_deps="avcodec avformat swresample"
2946 transcoding_example_deps="avfilter avcodec avformat avutil"
2947
2948 # libraries, in linking order
2949 avcodec_deps="avutil"
2950 avdevice_deps="avformat avcodec avutil"
2951 avfilter_deps="avutil"
2952 avformat_deps="avcodec avutil"
2953 avresample_deps="avutil"
2954 postproc_deps="avutil gpl"
2955 swresample_deps="avutil"
2956 swscale_deps="avutil"
2957
2958 # programs
2959 ffmpeg_deps="avcodec avfilter avformat swresample"
2960 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2961                null_filter
2962                setpts_filter trim_filter"
2963 ffplay_deps="avcodec avformat swscale swresample sdl"
2964 ffplay_libs='$sdl_libs'
2965 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2966 ffprobe_deps="avcodec avformat"
2967 ffserver_deps="avformat fork sarestart"
2968 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2969
2970 # documentation
2971 podpages_deps="perl"
2972 manpages_deps="perl pod2man"
2973 htmlpages_deps="perl"
2974 htmlpages_deps_any="makeinfo_html texi2html"
2975 txtpages_deps="perl makeinfo"
2976 doc_deps_any="manpages htmlpages podpages txtpages"
2977
2978 # default parameters
2979
2980 logfile="config.log"
2981
2982 # installation paths
2983 prefix_default="/usr/local"
2984 bindir_default='${prefix}/bin'
2985 datadir_default='${prefix}/share/ffmpeg'
2986 docdir_default='${prefix}/share/doc/ffmpeg'
2987 incdir_default='${prefix}/include'
2988 libdir_default='${prefix}/lib'
2989 mandir_default='${prefix}/share/man'
2990
2991 # toolchain
2992 ar_default="ar"
2993 cc_default="gcc"
2994 cxx_default="g++"
2995 host_cc_default="gcc"
2996 cp_f="cp -f"
2997 doxygen_default="doxygen"
2998 install="install"
2999 ln_s="ln -s -f"
3000 nm_default="nm -g"
3001 objformat="elf"
3002 pkg_config_default=pkg-config
3003 ranlib_default="ranlib"
3004 strip_default="strip"
3005 yasmexe_default="yasm"
3006 windres_default="windres"
3007
3008 # OS
3009 target_os_default=$(tolower $(uname -s))
3010 host_os=$target_os_default
3011
3012 # machine
3013 if test "$target_os_default" = aix; then
3014     arch_default=$(uname -p)
3015     strip_default="strip -X32_64"
3016 else
3017     arch_default=$(uname -m)
3018 fi
3019 cpu="generic"
3020 intrinsics="none"
3021
3022 # configurable options
3023 enable $PROGRAM_LIST
3024 enable $DOCUMENT_LIST
3025 enable $EXAMPLE_LIST
3026 enable $(filter_out avresample $LIBRARY_LIST)
3027 enable stripping
3028
3029 enable asm
3030 enable debug
3031 enable doc
3032 enable faan faandct faanidct
3033 enable optimizations
3034 enable runtime_cpudetect
3035 enable safe_bitstream_reader
3036 enable static
3037 enable swscale_alpha
3038 enable valgrind_backtrace
3039
3040 sws_max_filter_size_default=256
3041 set_default sws_max_filter_size
3042
3043 # Enable hwaccels by default.
3044 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3045 enable xlib
3046
3047 # build settings
3048 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3049 LIBPREF="lib"
3050 LIBSUF=".a"
3051 FULLNAME='$(NAME)$(BUILDSUF)'
3052 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3053 SLIBPREF="lib"
3054 SLIBSUF=".so"
3055 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3056 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3057 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3058 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3059 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3060 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3061
3062 asflags_filter=echo
3063 cflags_filter=echo
3064 ldflags_filter=echo
3065
3066 AS_C='-c'
3067 AS_O='-o $@'
3068 CC_C='-c'
3069 CC_E='-E -o $@'
3070 CC_O='-o $@'
3071 CXX_C='-c'
3072 CXX_O='-o $@'
3073 OBJCC_C='-c'
3074 OBJCC_E='-E -o $@'
3075 OBJCC_O='-o $@'
3076 LD_O='-o $@'
3077 LD_LIB='-l%'
3078 LD_PATH='-L'
3079 HOSTCC_C='-c'
3080 HOSTCC_E='-E -o $@'
3081 HOSTCC_O='-o $@'
3082 HOSTLD_O='-o $@'
3083
3084 host_libs='-lm'
3085 host_cflags_filter=echo
3086 host_ldflags_filter=echo
3087
3088 target_path='$(CURDIR)'
3089
3090 # since the object filename is not given with the -MM flag, the compiler
3091 # is only able to print the basename, and we must add the path ourselves
3092 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3093 DEPFLAGS='-MM'
3094
3095 # find source path
3096 if test -f configure; then
3097     source_path=.
3098 else
3099     source_path=$(cd $(dirname "$0"); pwd)
3100     case "$source_path" in
3101         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3102     esac
3103     test -e "$source_path/config.h" &&
3104         die "Out of tree builds are impossible with config.h in source dir."
3105 fi
3106
3107 for v in "$@"; do
3108     r=${v#*=}
3109     l=${v%"$r"}
3110     r=$(sh_quote "$r")
3111     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3112 done
3113
3114 find_things(){
3115     thing=$1
3116     pattern=$2
3117     file=$source_path/$3
3118     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3119 }
3120
3121 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3122 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3123 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3124 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3125 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3126 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3127 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3128 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3129 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3130 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3131 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3132
3133 ALL_COMPONENTS="
3134     $BSF_LIST
3135     $DECODER_LIST
3136     $DEMUXER_LIST
3137     $ENCODER_LIST
3138     $FILTER_LIST
3139     $HWACCEL_LIST
3140     $INDEV_LIST
3141     $MUXER_LIST
3142     $OUTDEV_LIST
3143     $PARSER_LIST
3144     $PROTOCOL_LIST
3145 "
3146
3147 for n in $COMPONENT_LIST; do
3148     v=$(toupper ${n%s})_LIST
3149     eval enable \$$v
3150     eval ${n}_if_any="\$$v"
3151 done
3152
3153 enable $ARCH_EXT_LIST
3154
3155 die_unknown(){
3156     echo "Unknown option \"$1\"."
3157     echo "See $0 --help for available options."
3158     exit 1
3159 }
3160
3161 print_in_columns() {
3162     cols=$(expr $ncols / 24)
3163     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3164 }
3165
3166 show_list() {
3167     suffix=_$1
3168     shift
3169     echo $* | sed s/$suffix//g | print_in_columns
3170     exit 0
3171 }
3172
3173 rand_list(){
3174     IFS=', '
3175     set -- $*
3176     unset IFS
3177     for thing; do
3178         comp=${thing%:*}
3179         prob=${thing#$comp}
3180         prob=${prob#:}
3181         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3182         echo "prob ${prob:-0.5}"
3183         printf '%s\n' $comp
3184     done
3185 }
3186
3187 do_random(){
3188     action=$1
3189     shift
3190     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3191     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3192 }
3193
3194 for opt do
3195     optval="${opt#*=}"
3196     case "$opt" in
3197         --extra-ldflags=*)
3198             add_ldflags $optval
3199         ;;
3200         --extra-ldexeflags=*)
3201             add_ldexeflags $optval
3202         ;;
3203         --extra-ldlibflags=*)
3204             add_ldlibflags $optval
3205         ;;
3206         --extra-libs=*)
3207             add_extralibs $optval
3208         ;;
3209         --disable-devices)
3210             disable $INDEV_LIST $OUTDEV_LIST
3211         ;;
3212         --enable-debug=*)
3213             debuglevel="$optval"
3214         ;;
3215         --disable-programs)
3216             disable $PROGRAM_LIST
3217         ;;
3218         --disable-everything)
3219             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3220         ;;
3221         --disable-all)
3222             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3223             disable $LIBRARY_LIST $PROGRAM_LIST doc
3224             enable avutil
3225         ;;
3226         --enable-random|--disable-random)
3227             action=${opt%%-random}
3228             do_random ${action#--} $COMPONENT_LIST
3229         ;;
3230         --enable-random=*|--disable-random=*)
3231             action=${opt%%-random=*}
3232             do_random ${action#--} $optval
3233         ;;
3234         --enable-*=*|--disable-*=*)
3235             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3236             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3237             eval list=\$$(toupper $thing)_LIST
3238             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3239             list=$(filter "$name" $list)
3240             [ "$list" = "" ] && warn "Option $opt did not match anything"
3241             $action $list
3242         ;;
3243         --enable-?*|--disable-?*)
3244             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3245             if is_in $option $COMPONENT_LIST; then
3246                 test $action = disable && action=unset
3247                 eval $action \$$(toupper ${option%s})_LIST
3248             elif is_in $option $CMDLINE_SELECT; then
3249                 $action $option
3250             else
3251                 die_unknown $opt
3252             fi
3253         ;;
3254         --list-*)
3255             NAME="${opt#--list-}"
3256             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3257             NAME=${NAME%s}
3258             eval show_list $NAME \$$(toupper $NAME)_LIST
3259         ;;
3260         --help|-h) show_help
3261         ;;
3262         --fatal-warnings) enable fatal_warnings
3263         ;;
3264         *)
3265             optname="${opt%%=*}"
3266             optname="${optname#--}"
3267             optname=$(echo "$optname" | sed 's/-/_/g')
3268             if is_in $optname $CMDLINE_SET; then
3269                 eval $optname='$optval'
3270             elif is_in $optname $CMDLINE_APPEND; then
3271                 append $optname "$optval"
3272             else
3273                 die_unknown $opt
3274             fi
3275         ;;
3276     esac
3277 done
3278
3279 for e in $env; do
3280     eval "export $e"
3281 done
3282
3283 disabled logging && logfile=/dev/null
3284
3285 # Disable all the library-specific components if the library itself
3286 # is disabled, see AVCODEC_LIST and following _LIST variables.
3287
3288 disable_components(){
3289     disabled ${1} && disable $(
3290         eval components="\$$(toupper ${1})_COMPONENTS"
3291         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3292     )
3293 }
3294
3295 map 'disable_components $v' $LIBRARY_LIST
3296
3297 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3298 set >> $logfile
3299
3300 test -n "$valgrind" && toolchain="valgrind-memcheck"
3301
3302 case "$toolchain" in
3303     clang-asan)
3304         cc_default="clang"
3305         add_cflags  -fsanitize=address
3306         add_ldflags -fsanitize=address
3307     ;;
3308     clang-tsan)
3309         cc_default="clang"
3310         add_cflags  -fsanitize=thread -pie
3311         add_ldflags -fsanitize=thread -pie
3312     ;;
3313     clang-usan)
3314         cc_default="clang"
3315         add_cflags  -fsanitize=undefined
3316         add_ldflags -fsanitize=undefined
3317     ;;
3318     gcc-asan)
3319         cc_default="gcc"
3320         add_cflags  -fsanitize=address
3321         add_ldflags -fsanitize=address
3322     ;;
3323     gcc-tsan)
3324         cc_default="gcc"
3325         add_cflags  -fsanitize=thread -pie -fPIC
3326         add_ldflags -fsanitize=thread -pie -fPIC
3327     ;;
3328     gcc-usan)
3329         cc_default="gcc"
3330         add_cflags  -fsanitize=undefined
3331         add_ldflags -fsanitize=undefined
3332     ;;
3333     valgrind-massif)
3334         target_exec_default=${valgrind:-"valgrind"}
3335         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"
3336     ;;
3337     valgrind-memcheck)
3338         target_exec_default=${valgrind:-"valgrind"}
3339         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3340     ;;
3341     msvc)
3342         # Check whether the current MSVC version needs the C99 converter.
3343         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3344         # support enough of C99 to build ffmpeg. Default to the new
3345         # behaviour if the regexp was unable to match anything, since this
3346         # successfully parses the version number of existing supported
3347         # versions that require the converter (MSVC 2010 and 2012).
3348         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3349         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3350             cc_default="cl"
3351         else
3352             cc_default="c99wrap cl"
3353         fi
3354         ld_default="$source_path/compat/windows/mslink"
3355         nm_default="dumpbin -symbols"
3356         ar_default="lib"
3357         case "$arch" in
3358         arm*)
3359             as_default="armasm"
3360             ;;
3361         esac
3362         target_os_default="win32"
3363         # Use a relative path for TMPDIR. This makes sure all the
3364         # ffconf temp files are written with a relative path, avoiding
3365         # issues with msys/win32 path conversion for MSVC parameters
3366         # such as -Fo<file> or -out:<file>.
3367         TMPDIR=.
3368     ;;
3369     icl)
3370         cc_default="icl"
3371         ld_default="xilink"
3372         nm_default="dumpbin -symbols"
3373         ar_default="xilib"
3374         target_os_default="win32"
3375         TMPDIR=.
3376     ;;
3377     gcov)
3378         add_cflags  -fprofile-arcs -ftest-coverage
3379         add_ldflags -fprofile-arcs -ftest-coverage
3380     ;;
3381     hardened)
3382         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3383         add_cflags   -fno-strict-overflow -fstack-protector-all
3384         add_ldflags  -Wl,-z,relro -Wl,-z,now
3385     ;;
3386     ?*)
3387         die "Unknown toolchain $toolchain"
3388     ;;
3389 esac
3390
3391 test -n "$cross_prefix" && enable cross_compile
3392
3393 if enabled cross_compile; then
3394     test -n "$arch" && test -n "$target_os" ||
3395         die "Must specify target arch and OS when cross-compiling"
3396 fi
3397
3398 ar_default="${cross_prefix}${ar_default}"
3399 cc_default="${cross_prefix}${cc_default}"
3400 cxx_default="${cross_prefix}${cxx_default}"
3401 nm_default="${cross_prefix}${nm_default}"
3402 pkg_config_default="${cross_prefix}${pkg_config_default}"
3403 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3404     ranlib_default="${cross_prefix}${ranlib_default} -D"
3405 else
3406     ranlib_default="${cross_prefix}${ranlib_default}"
3407 fi
3408 strip_default="${cross_prefix}${strip_default}"
3409 windres_default="${cross_prefix}${windres_default}"
3410
3411 sysinclude_default="${sysroot}/usr/include"
3412
3413 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3414     target_exec target_os yasmexe
3415 enabled cross_compile || host_cc_default=$cc
3416 set_default host_cc
3417
3418 pkg_config_fail_message=""
3419 if ! $pkg_config --version >/dev/null 2>&1; then
3420     warn "$pkg_config not found, library detection may fail."
3421     pkg_config=false
3422 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3423     pkg_config_fail_message="
3424 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3425 fi
3426
3427 if test $doxygen != $doxygen_default && \
3428   ! $doxygen --version >/dev/null 2>&1; then
3429     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3430 fi
3431
3432 exesuf() {
3433     case $1 in
3434         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3435     esac
3436 }
3437
3438 EXESUF=$(exesuf $target_os)
3439 HOSTEXESUF=$(exesuf $host_os)
3440
3441 # set temporary file name
3442 : ${TMPDIR:=$TEMPDIR}
3443 : ${TMPDIR:=$TMP}
3444 : ${TMPDIR:=/tmp}
3445
3446 if [ -n "$tempprefix" ] ; then
3447     mktemp(){
3448         echo $tempprefix.${HOSTNAME}.${UID}
3449     }
3450 elif ! check_cmd mktemp -u XXXXXX; then
3451     # simple replacement for missing mktemp
3452     # NOT SAFE FOR GENERAL USE
3453     mktemp(){
3454         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3455     }
3456 fi
3457
3458 tmpfile(){
3459     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3460         (set -C; exec > $tmp) 2>/dev/null ||
3461         die "Unable to create temporary file in $TMPDIR."
3462     append TMPFILES $tmp
3463     eval $1=$tmp
3464 }
3465
3466 trap 'rm -f -- $TMPFILES' EXIT
3467
3468 tmpfile TMPASM .asm
3469 tmpfile TMPC   .c
3470 tmpfile TMPCPP .cpp
3471 tmpfile TMPE   $EXESUF
3472 tmpfile TMPH   .h
3473 tmpfile TMPM   .m
3474 tmpfile TMPO   .o
3475 tmpfile TMPS   .S
3476 tmpfile TMPSH  .sh
3477 tmpfile TMPV   .ver
3478
3479 unset -f mktemp
3480
3481 chmod +x $TMPE
3482
3483 # make sure we can execute files in $TMPDIR
3484 cat > $TMPSH 2>> $logfile <<EOF
3485 #! /bin/sh
3486 EOF
3487 chmod +x $TMPSH >> $logfile 2>&1
3488 if ! $TMPSH >> $logfile 2>&1; then
3489     cat <<EOF
3490 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3491 variable to another directory and make sure that it is not mounted noexec.
3492 EOF
3493     die "Sanity test failed."
3494 fi
3495
3496 armasm_flags(){
3497     for flag; do
3498         case $flag in
3499             # Filter out MSVC cl.exe options from cflags that shouldn't
3500             # be passed to gas-preprocessor
3501             -M[TD]*)                                            ;;
3502             *)                  echo $flag                      ;;
3503         esac
3504    done
3505 }
3506
3507 ccc_flags(){
3508     for flag; do
3509         case $flag in
3510             -std=c99)           echo -c99                       ;;
3511             -mcpu=*)            echo -arch ${flag#*=}           ;;
3512             -mieee)             echo -ieee                      ;;
3513             -O*|-fast)          echo $flag                      ;;
3514             -fno-math-errno)    echo -assume nomath_errno       ;;
3515             -g)                 echo -g3                        ;;
3516             -Wall)              echo -msg_enable level2         ;;
3517             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3518             -Wl,*)              echo $flag                      ;;
3519             -f*|-W*)                                            ;;
3520             *)                  echo $flag                      ;;
3521         esac
3522    done
3523 }
3524
3525 cparser_flags(){
3526     for flag; do
3527         case $flag in
3528             -Wno-switch)             echo -Wno-switch-enum ;;
3529             -Wno-format-zero-length) ;;
3530             -Wdisabled-optimization) ;;
3531             -Wno-pointer-sign)       echo -Wno-other ;;
3532             *)                       echo $flag ;;
3533         esac
3534     done
3535 }
3536
3537 msvc_common_flags(){
3538     for flag; do
3539         case $flag in
3540             # In addition to specifying certain flags under the compiler
3541             # specific filters, they must be specified here as well or else the
3542             # generic catch all at the bottom will print the original flag.
3543             -Wall)                ;;
3544             -std=c99)             ;;
3545             # Common flags
3546             -fomit-frame-pointer) ;;
3547             -g)                   echo -Z7 ;;
3548             -fno-math-errno)      ;;
3549             -fno-common)          ;;
3550             -fno-signed-zeros)    ;;
3551             -fPIC)                ;;
3552             -mthumb)              ;;
3553             -march=*)             ;;
3554             -lz)                  echo zlib.lib ;;
3555             -lavifil32)           echo vfw32.lib ;;
3556             -lavicap32)           echo vfw32.lib user32.lib ;;
3557             -l*)                  echo ${flag#-l}.lib ;;
3558             -LARGEADDRESSAWARE)   echo $flag ;;
3559             -L*)                  echo -libpath:${flag#-L} ;;
3560             *)                    echo $flag ;;
3561         esac
3562     done
3563 }
3564
3565 msvc_flags(){
3566     msvc_common_flags "$@"
3567     for flag; do
3568         case $flag in
3569             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3570                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3571                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3572                                        -wd4307 \
3573                                        -wd4273 -wd4554 -wd4701 ;;
3574         esac
3575     done
3576 }
3577
3578 icl_flags(){
3579     msvc_common_flags "$@"
3580     for flag; do
3581         case $flag in
3582             # Despite what Intel's documentation says -Wall, which is supported
3583             # on Windows, does enable remarks so disable them here.
3584             -Wall)                echo $flag -Qdiag-disable:remark ;;
3585             -std=c99)             echo -Qstd=c99 ;;
3586             -flto)                echo -ipo ;;
3587         esac
3588     done
3589 }
3590
3591 icc_flags(){
3592     for flag; do
3593         case $flag in
3594             -flto)                echo -ipo ;;
3595             *)                    echo $flag ;;
3596         esac
3597     done
3598 }
3599
3600 pgi_flags(){
3601     for flag; do
3602         case $flag in
3603             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3604             -fomit-frame-pointer) echo -Mnoframe ;;
3605             -g)                   echo -gopt ;;
3606             *)                    echo $flag ;;
3607         esac
3608     done
3609 }
3610
3611 suncc_flags(){
3612     for flag; do
3613         case $flag in
3614             -march=*|-mcpu=*)
3615                 case "${flag#*=}" in
3616                     native)                   echo -xtarget=native       ;;
3617                     v9|niagara)               echo -xarch=sparc          ;;
3618                     ultrasparc)               echo -xarch=sparcvis       ;;
3619                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3620                     i586|pentium)             echo -xchip=pentium        ;;
3621                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3622                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3623                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3624                     pentium4*)          echo -xtarget=pentium4           ;;
3625                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3626                     *-sse3)             echo -xarch=sse3                 ;;
3627                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3628                     bonnell)                   echo -xarch=ssse3         ;;
3629                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3630                     westmere)                  echo -xtarget=westmere    ;;
3631                     silvermont)                echo -xarch=sse4_2        ;;
3632                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3633                     core-avx*|ivybridge|haswell|broadwell)
3634                                                echo -xarch=avx           ;;
3635                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3636                     btver1)                    echo -xarch=amdsse4a      ;;
3637                     btver2|bdver*)             echo -xarch=avx           ;;
3638                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3639                     k8|opteron|athlon64|athlon-fx)
3640                                                echo -xarch=sse2a         ;;
3641                     athlon*)                   echo -xarch=pentium_proa  ;;
3642                 esac
3643                 ;;
3644             -std=c99)             echo -xc99              ;;
3645             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3646             -fPIC)                echo -KPIC -xcode=pic32 ;;
3647             -W*,*)                echo $flag              ;;
3648             -f*-*|-W*|-mimpure-text)                      ;;
3649             -shared)              echo -G                 ;;
3650             *)                    echo $flag              ;;
3651         esac
3652     done
3653 }
3654
3655 tms470_flags(){
3656     for flag; do
3657         case $flag in
3658             -march=*|-mcpu=*)
3659                 case "${flag#*=}" in
3660                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3661                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3662                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3663                     armv6*|arm11*)          echo -mv=6   ;;
3664                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3665                                             echo -mv=5e  ;;
3666                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3667                 esac
3668                 ;;
3669             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3670             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3671             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3672             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3673             -msoft-float)   echo --float_support=vfplib       ;;
3674             -O[0-3]|-mf=*)  echo $flag                        ;;
3675             -g)             echo -g -mn                       ;;
3676             -pds=*)         echo $flag                        ;;
3677             -D*|-I*)        echo $flag                        ;;
3678             --gcc|--abi=*)  echo $flag                        ;;
3679             -me)            echo $flag                        ;;
3680         esac
3681     done
3682 }
3683
3684 probe_cc(){
3685     pfx=$1
3686     _cc=$2
3687     first=$3
3688
3689     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3690     unset _ld_o _ldflags _ld_lib _ld_path
3691     unset _depflags _DEPCMD _DEPFLAGS
3692     _flags_filter=echo
3693
3694     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3695         true # no-op to avoid reading stdin in following checks
3696     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3697         _type=llvm_gcc
3698         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3699         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3700         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3701         _cflags_speed='-O3'
3702         _cflags_size='-Os'
3703     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3704         _type=gcc
3705         gcc_version=$($_cc --version | head -n1)
3706         gcc_basever=$($_cc -dumpversion)
3707         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3708         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3709         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3710         case $gcc_basever in
3711             2) ;;
3712             2.*) ;;
3713             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3714         esac
3715         if [ "$first" = true ]; then
3716             case $gcc_basever in
3717                 4.2*)
3718                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3719             esac
3720         fi
3721         _cflags_speed='-O3'
3722         _cflags_size='-Os'
3723     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3724         _type=icc
3725         _ident=$($_cc --version | head -n1)
3726         _depflags='-MMD'
3727         _cflags_speed='-O3'
3728         _cflags_size='-Os'
3729         _cflags_noopt='-O1'
3730         _flags_filter=icc_flags
3731     elif $_cc -v 2>&1 | grep -q xlc; then
3732         _type=xlc
3733         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3734         _cflags_speed='-O5'
3735         _cflags_size='-O5 -qcompact'
3736     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3737         _type=ccc
3738         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3739         _DEPFLAGS='-M'
3740         _cflags_speed='-fast'
3741         _cflags_size='-O1'
3742         _flags_filter=ccc_flags
3743     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3744         test -d "$sysroot" || die "No valid sysroot specified."
3745         _type=armcc
3746         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3747         armcc_conf="$PWD/armcc.conf"
3748         $_cc --arm_linux_configure                 \
3749              --arm_linux_config_file="$armcc_conf" \
3750              --configure_sysroot="$sysroot"        \
3751              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3752              die "Error creating armcc configuration file."
3753         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3754         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3755         as_default="${cross_prefix}gcc"
3756         _depflags='-MMD'
3757         _cflags_speed='-O3'
3758         _cflags_size='-Os'
3759     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3760         _type=tms470
3761         _ident=$($_cc -version | head -n1 | tr -s ' ')
3762         _flags='--gcc --abi=eabi -me'
3763         _cc_e='-ppl -fe=$@'
3764         _cc_o='-fe=$@'
3765         _depflags='-ppa -ppd=$(@:.o=.d)'
3766         _cflags_speed='-O3 -mf=5'
3767         _cflags_size='-O3 -mf=2'
3768         _flags_filter=tms470_flags
3769     elif $_cc -v 2>&1 | grep -q clang; then
3770         _type=clang
3771         _ident=$($_cc --version 2>/dev/null | head -n1)
3772         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3773         _cflags_speed='-O3'
3774         _cflags_size='-Os'
3775     elif $_cc -V 2>&1 | grep -q Sun; then
3776         _type=suncc
3777         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3778         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3779         _DEPFLAGS='-xM1 -xc99'
3780         _ldflags='-std=c99'
3781         _cflags_speed='-O5'
3782         _cflags_size='-O5 -xspace'
3783         _flags_filter=suncc_flags
3784     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3785         _type=pathscale
3786         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3787         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3788         _cflags_speed='-O2'
3789         _cflags_size='-Os'
3790         _flags_filter='filter_out -Wdisabled-optimization'
3791     elif $_cc -v 2>&1 | grep -q Open64; then
3792         _type=open64
3793         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3794         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3795         _cflags_speed='-O2'
3796         _cflags_size='-Os'
3797         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3798     elif $_cc -V 2>&1 | grep -q Portland; then
3799         _type=pgi
3800         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3801         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3802         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3803         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3804         _cflags_noopt="-O"
3805         _flags_filter=pgi_flags
3806     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3807         _type=armasm
3808         _ident=$($_cc | head -n1)
3809         # 4509: "This form of conditional instruction is deprecated"
3810         _flags="-nologo -ignore 4509"
3811         _flags_filter=armasm_flags
3812     elif $_cc 2>&1 | grep -q Intel; then
3813         _type=icl
3814         _ident=$($_cc 2>&1 | head -n1)
3815         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3816         # Not only is O3 broken on 13.x+ but it is slower on all previous
3817         # versions (tested) as well.
3818         _cflags_speed="-O2"
3819         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3820         if $_cc 2>&1 | grep -q Linker; then
3821             _ld_o='-out:$@'
3822         else
3823             _ld_o='-Fe$@'
3824         fi
3825         _cc_o='-Fo$@'
3826         _cc_e='-P'
3827         _flags_filter=icl_flags
3828         _ld_lib='lib%.a'
3829         _ld_path='-libpath:'
3830         # -Qdiag-error to make icl error when seeing certain unknown arguments
3831         _flags='-nologo -Qdiag-error:4044,10157'
3832         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3833         # with MSVC which enables it by default.
3834         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3835         disable stripping
3836     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3837         _type=msvc
3838         _ident=$($_cc 2>&1 | head -n1)
3839         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3840         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3841         _cflags_speed="-O2"
3842         _cflags_size="-O1"
3843         if $_cc -nologo- 2>&1 | grep -q Linker; then
3844             _ld_o='-out:$@'
3845         else
3846             _ld_o='-Fe$@'
3847         fi
3848         _cc_o='-Fo$@'
3849         _cc_e='-P -Fi$@'
3850         _flags_filter=msvc_flags
3851         _ld_lib='lib%.a'
3852         _ld_path='-libpath:'
3853         _flags='-nologo'
3854         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3855         disable stripping
3856     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3857         _type=cparser
3858         _ident=$($_cc --version | head -n1)
3859         _depflags='-MMD'
3860         _cflags_speed='-O4'
3861         _cflags_size='-O2'
3862         _flags_filter=cparser_flags
3863     fi
3864
3865     eval ${pfx}_type=\$_type
3866     eval ${pfx}_ident=\$_ident
3867 }
3868
3869 set_ccvars(){
3870     eval ${1}_C=\${_cc_c-\${${1}_C}}
3871     eval ${1}_E=\${_cc_e-\${${1}_E}}
3872     eval ${1}_O=\${_cc_o-\${${1}_O}}
3873
3874     if [ -n "$_depflags" ]; then
3875         eval ${1}_DEPFLAGS=\$_depflags
3876     else
3877         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3878         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3879         eval DEP${1}FLAGS=\$_flags
3880     fi
3881 }
3882
3883 probe_cc cc "$cc" "true"
3884 cflags_filter=$_flags_filter
3885 cflags_speed=$_cflags_speed
3886 cflags_size=$_cflags_size
3887 cflags_noopt=$_cflags_noopt
3888 add_cflags $_flags $_cflags
3889 cc_ldflags=$_ldflags
3890 set_ccvars CC
3891
3892 probe_cc hostcc "$host_cc"
3893 host_cflags_filter=$_flags_filter
3894 add_host_cflags  $_flags $_cflags
3895 set_ccvars HOSTCC
3896
3897 test -n "$cc_type" && enable $cc_type ||
3898     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3899
3900 : ${as_default:=$cc}
3901 : ${objcc_default:=$cc}
3902 : ${dep_cc_default:=$cc}
3903 : ${ld_default:=$cc}
3904 : ${host_ld_default:=$host_cc}
3905 set_default ar as objcc dep_cc ld host_ld windres
3906
3907 probe_cc as "$as"
3908 asflags_filter=$_flags_filter
3909 add_asflags $_flags $_cflags
3910 set_ccvars AS
3911
3912 probe_cc objcc "$objcc"
3913 objcflags_filter=$_flags_filter
3914 add_objcflags $_flags $_cflags
3915 set_ccvars OBJC
3916
3917 probe_cc ld "$ld"
3918 ldflags_filter=$_flags_filter
3919 add_ldflags $_flags $_ldflags
3920 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3921 LD_O=${_ld_o-$LD_O}
3922 LD_LIB=${_ld_lib-$LD_LIB}
3923 LD_PATH=${_ld_path-$LD_PATH}
3924
3925 probe_cc hostld "$host_ld"
3926 host_ldflags_filter=$_flags_filter
3927 add_host_ldflags $_flags $_ldflags
3928 HOSTLD_O=${_ld_o-$HOSTLD_O}
3929
3930 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3931     probe_cc depcc "$dep_cc"
3932     CCDEP=${_DEPCMD:-$DEPCMD}
3933     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3934     DEPCCFLAGS=$_flags
3935 fi
3936
3937 if $ar 2>&1 | grep -q Microsoft; then
3938     arflags="-nologo"
3939     ar_o='-out:$@'
3940 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3941     arflags="rq"
3942     ar_o='$@'
3943 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3944     arflags='-Xany -r -c'
3945     ar_o='$@'
3946 elif $ar 2>&1 | grep -q "\[D\] "; then
3947     arflags="rcD"
3948     ar_o='$@'
3949 else
3950     arflags="rc"
3951     ar_o='$@'
3952 fi
3953
3954 add_cflags $extra_cflags
3955 add_cxxflags $extra_cxxflags
3956 add_objcflags $extra_objcflags
3957 add_asflags $extra_cflags
3958
3959 if test -n "$sysroot"; then
3960     case "$cc_type" in
3961         gcc|llvm_gcc|clang)
3962             add_cppflags --sysroot="$sysroot"
3963             add_ldflags --sysroot="$sysroot"
3964 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3965             add_cppflags -isysroot "$sysroot"
3966             add_ldflags -isysroot "$sysroot"
3967         ;;
3968         tms470)
3969             add_cppflags -I"$sysinclude"
3970             add_ldflags  --sysroot="$sysroot"
3971         ;;
3972     esac
3973 fi
3974
3975 if test "$cpu" = host; then
3976     enabled cross_compile &&
3977         die "--cpu=host makes no sense when cross-compiling."
3978
3979     case "$cc_type" in
3980         gcc|llvm_gcc)
3981             check_native(){
3982                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3983                 sed -n "/cc1.*$1=/{
3984                             s/.*$1=\\([^ ]*\\).*/\\1/
3985                             p
3986                             q
3987                         }" $TMPE
3988             }
3989             cpu=$(check_native -march || check_native -mcpu)
3990         ;;
3991         clang)
3992             check_native(){
3993                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3994                 sed -n "/cc1.*-target-cpu /{
3995                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
3996                             p
3997                             q
3998                         }" $TMPE
3999             }
4000             cpu=$(check_native -march)
4001         ;;
4002     esac
4003
4004     test "${cpu:-host}" = host &&
4005         die "--cpu=host not supported with compiler $cc"
4006 fi
4007
4008 # Deal with common $arch aliases
4009 case "$arch" in
4010     aarch64|arm64)
4011         arch="aarch64"
4012     ;;
4013     arm*|iPad*|iPhone*)
4014         arch="arm"
4015     ;;
4016     mips*|IP*)
4017         arch="mips"
4018     ;;
4019     parisc*|hppa*)
4020         arch="parisc"
4021     ;;
4022     "Power Macintosh"|ppc*|powerpc*)
4023         arch="ppc"
4024     ;;
4025     s390|s390x)
4026         arch="s390"
4027     ;;
4028     sh4|sh)
4029         arch="sh4"
4030     ;;
4031     sun4u|sparc*)
4032         arch="sparc"
4033     ;;
4034     tilegx|tile-gx)
4035         arch="tilegx"
4036     ;;
4037     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4038         arch="x86"
4039     ;;
4040 esac
4041
4042 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4043 enable $arch
4044
4045 # Add processor-specific flags
4046 if enabled aarch64; then
4047
4048     case $cpu in
4049         armv*)
4050             cpuflags="-march=$cpu"
4051         ;;
4052         *)
4053             cpuflags="-mcpu=$cpu"
4054         ;;
4055     esac
4056
4057 elif enabled alpha; then
4058
4059     cpuflags="-mcpu=$cpu"
4060
4061 elif enabled arm; then
4062
4063     check_arm_arch() {
4064         check_cpp_condition stddef.h \
4065             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4066             $cpuflags
4067     }
4068
4069     probe_arm_arch() {
4070         if   check_arm_arch 4;        then echo armv4;
4071         elif check_arm_arch 4T;       then echo armv4t;
4072         elif check_arm_arch 5;        then echo armv5;
4073         elif check_arm_arch 5E;       then echo armv5e;
4074         elif check_arm_arch 5T;       then echo armv5t;
4075         elif check_arm_arch 5TE;      then echo armv5te;
4076         elif check_arm_arch 5TEJ;     then echo armv5te;
4077         elif check_arm_arch 6;        then echo armv6;
4078         elif check_arm_arch 6J;       then echo armv6j;
4079         elif check_arm_arch 6K;       then echo armv6k;
4080         elif check_arm_arch 6Z;       then echo armv6z;
4081         elif check_arm_arch 6ZK;      then echo armv6zk;
4082         elif check_arm_arch 6T2;      then echo armv6t2;
4083         elif check_arm_arch 7;        then echo armv7;
4084         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4085         elif check_arm_arch 7S;       then echo armv7-a;
4086         elif check_arm_arch 7R  7_R;  the