Merge commit '3a85397e8bb477eb34678d9edc52893f57003226'
[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-avutil         disable libavutil build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Hardware accelerators:
153   --disable-d3d11va        disable D3D11VA code [autodetect]
154   --disable-dxva2          disable DXVA2 code [autodetect]
155   --disable-vaapi          disable VAAPI code [autodetect]
156   --disable-vda            disable VDA code [autodetect]
157   --disable-vdpau          disable VDPAU code [autodetect]
158
159 Individual component options:
160   --disable-everything     disable all components listed below
161   --disable-encoder=NAME   disable encoder NAME
162   --enable-encoder=NAME    enable encoder NAME
163   --disable-encoders       disable all encoders
164   --disable-decoder=NAME   disable decoder NAME
165   --enable-decoder=NAME    enable decoder NAME
166   --disable-decoders       disable all decoders
167   --disable-hwaccel=NAME   disable hwaccel NAME
168   --enable-hwaccel=NAME    enable hwaccel NAME
169   --disable-hwaccels       disable all hwaccels
170   --disable-muxer=NAME     disable muxer NAME
171   --enable-muxer=NAME      enable muxer NAME
172   --disable-muxers         disable all muxers
173   --disable-demuxer=NAME   disable demuxer NAME
174   --enable-demuxer=NAME    enable demuxer NAME
175   --disable-demuxers       disable all demuxers
176   --enable-parser=NAME     enable parser NAME
177   --disable-parser=NAME    disable parser NAME
178   --disable-parsers        disable all parsers
179   --enable-bsf=NAME        enable bitstream filter NAME
180   --disable-bsf=NAME       disable bitstream filter NAME
181   --disable-bsfs           disable all bitstream filters
182   --enable-protocol=NAME   enable protocol NAME
183   --disable-protocol=NAME  disable protocol NAME
184   --disable-protocols      disable all protocols
185   --enable-indev=NAME      enable input device NAME
186   --disable-indev=NAME     disable input device NAME
187   --disable-indevs         disable input devices
188   --enable-outdev=NAME     enable output device NAME
189   --disable-outdev=NAME    disable output device NAME
190   --disable-outdevs        disable output devices
191   --disable-devices        disable all devices
192   --enable-filter=NAME     enable filter NAME
193   --disable-filter=NAME    disable filter NAME
194   --disable-filters        disable all filters
195
196 External library support:
197   --enable-avisynth        enable reading of AviSynth script files [no]
198   --disable-bzlib          disable bzlib [autodetect]
199   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
200   --enable-frei0r          enable frei0r video filtering [no]
201   --enable-gnutls          enable gnutls, needed for https support
202                            if openssl is not used [no]
203   --disable-iconv          disable iconv [autodetect]
204   --enable-ladspa          enable LADSPA audio filtering [no]
205   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
206   --enable-libass          enable libass subtitles rendering,
207                            needed for subtitles and ass filter [no]
208   --enable-libbluray       enable BluRay reading using libbluray [no]
209   --enable-libbs2b         enable bs2b DSP library [no]
210   --enable-libcaca         enable textual display using libcaca [no]
211   --enable-libcelt         enable CELT decoding via libcelt [no]
212   --enable-libcdio         enable audio CD grabbing with libcdio [no]
213   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
214                            and libraw1394 [no]
215   --enable-libdcadec       enable DCA decoding via libdcadec [no]
216   --enable-libfaac         enable AAC encoding via libfaac [no]
217   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
218   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
219   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
220   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
221   --enable-libgme          enable Game Music Emu via libgme [no]
222   --enable-libgsm          enable GSM de/encoding via libgsm [no]
223   --enable-libiec61883     enable iec61883 via libiec61883 [no]
224   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
225   --enable-libmfx          enable HW acceleration through libmfx
226   --enable-libmodplug      enable ModPlug via libmodplug [no]
227   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
228   --enable-libnut          enable NUT (de)muxing via libnut,
229                            native (de)muxer exists [no]
230   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
231   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
232   --enable-libopencv       enable video filtering via libopencv [no]
233   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
234   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
235   --enable-libopus         enable Opus de/encoding via libopus [no]
236   --enable-libpulse        enable Pulseaudio input via libpulse [no]
237   --enable-libquvi         enable quvi input via libquvi [no]
238   --enable-librtmp         enable RTMP[E] support via librtmp [no]
239   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
240   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
241   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
242   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
243   --enable-libsoxr         enable Include libsoxr resampling [no]
244   --enable-libspeex        enable Speex de/encoding via libspeex [no]
245   --enable-libssh          enable SFTP protocol via libssh [no]
246   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
247   --enable-libtheora       enable Theora encoding via libtheora [no]
248   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
249   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
250   --enable-libv4l2         enable libv4l2/v4l-utils [no]
251   --enable-libvidstab      enable video stabilization using vid.stab [no]
252   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
253   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
254   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
255                            native implementation exists [no]
256   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
257   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
258   --enable-libwebp         enable WebP encoding via libwebp [no]
259   --enable-libx264         enable H.264 encoding via x264 [no]
260   --enable-libx265         enable HEVC encoding via x265 [no]
261   --enable-libxavs         enable AVS encoding via xavs [no]
262   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
263   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
264   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
265   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
266   --enable-libxvid         enable Xvid encoding via xvidcore,
267                            native MPEG-4/Xvid encoder exists [no]
268   --enable-libzmq          enable message passing via libzmq [no]
269   --enable-libzvbi         enable teletext support via libzvbi [no]
270   --disable-lzma           disable lzma [autodetect]
271   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
272   --enable-mmal            enable decoding via MMAL [no]
273   --enable-nvenc           enable NVIDIA NVENC support [no]
274   --enable-openal          enable OpenAL 1.1 capture support [no]
275   --enable-opencl          enable OpenCL code
276   --enable-opengl          enable OpenGL rendering [no]
277   --enable-openssl         enable openssl, needed for https support
278                            if gnutls is not used [no]
279   --disable-sdl            disable sdl [autodetect]
280   --disable-securetransport disable Secure Transport, needed for TLS support
281                            on OSX if openssl and gnutls are not used [autodetect]
282   --enable-x11grab         enable X11 grabbing (legacy) [no]
283   --disable-xlib           disable xlib [autodetect]
284   --disable-zlib           disable zlib [autodetect]
285
286 Toolchain options:
287   --arch=ARCH              select architecture [$arch]
288   --cpu=CPU                select the minimum required CPU (affects
289                            instruction selection, may crash on older CPUs)
290   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
291   --progs-suffix=SUFFIX    program name suffix []
292   --enable-cross-compile   assume a cross-compiler is used
293   --sysroot=PATH           root of cross-build tree
294   --sysinclude=PATH        location of cross-build system headers
295   --target-os=OS           compiler targets OS [$target_os]
296   --target-exec=CMD        command to run executables on target
297   --target-path=DIR        path to view of build directory on target
298   --target-samples=DIR     path to samples directory on target
299   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
300   --toolchain=NAME         set tool defaults according to NAME
301   --nm=NM                  use nm tool NM [$nm_default]
302   --ar=AR                  use archive tool AR [$ar_default]
303   --as=AS                  use assembler AS [$as_default]
304   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
305   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
306   --cc=CC                  use C compiler CC [$cc_default]
307   --cxx=CXX                use C compiler CXX [$cxx_default]
308   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
309   --ld=LD                  use linker LD [$ld_default]
310   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
311   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
312   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
313   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
314   --host-cc=HOSTCC         use host C compiler HOSTCC
315   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
316   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
317   --host-ld=HOSTLD         use host linker HOSTLD
318   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
319   --host-libs=HLIBS        use libs HLIBS when linking for host
320   --host-os=OS             compiler host OS [$target_os]
321   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
322   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
323   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
324   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
325   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
326   --extra-libs=ELIBS       add ELIBS [$ELIBS]
327   --extra-version=STRING   version string suffix []
328   --optflags=OPTFLAGS      override optimization-related compiler flags
329   --build-suffix=SUFFIX    library name suffix []
330   --enable-pic             build position-independent code
331   --enable-thumb           compile for Thumb instruction set
332   --enable-lto             use link-time optimization
333   --env="ENV=override"     override the environment variables
334
335 Advanced options (experts only):
336   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
337   --disable-symver         disable symbol versioning
338   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
339   --disable-safe-bitstream-reader
340                            disable buffer boundary checking in bitreaders
341                            (faster, but may crash)
342   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
343   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
344
345 Optimization options (experts only):
346   --disable-asm            disable all assembly optimizations
347   --disable-altivec        disable AltiVec optimizations
348   --disable-vsx            disable VSX optimizations
349   --disable-power8         disable POWER8 optimizations
350   --disable-amd3dnow       disable 3DNow! optimizations
351   --disable-amd3dnowext    disable 3DNow! extended optimizations
352   --disable-mmx            disable MMX optimizations
353   --disable-mmxext         disable MMXEXT optimizations
354   --disable-sse            disable SSE optimizations
355   --disable-sse2           disable SSE2 optimizations
356   --disable-sse3           disable SSE3 optimizations
357   --disable-ssse3          disable SSSE3 optimizations
358   --disable-sse4           disable SSE4 optimizations
359   --disable-sse42          disable SSE4.2 optimizations
360   --disable-avx            disable AVX optimizations
361   --disable-xop            disable XOP optimizations
362   --disable-fma3           disable FMA3 optimizations
363   --disable-fma4           disable FMA4 optimizations
364   --disable-avx2           disable AVX2 optimizations
365   --disable-armv5te        disable armv5te optimizations
366   --disable-armv6          disable armv6 optimizations
367   --disable-armv6t2        disable armv6t2 optimizations
368   --disable-vfp            disable VFP optimizations
369   --disable-neon           disable NEON optimizations
370   --disable-inline-asm     disable use of inline assembly
371   --disable-yasm           disable use of nasm/yasm assembly
372   --disable-mips32r5       disable MIPS32R5 optimizations
373   --disable-mips64r6       disable MIPS64R6 optimizations
374   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
375   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
376   --disable-msa            disable MSA optimizations
377   --disable-mipsfpu        disable floating point MIPS optimizations
378   --disable-mmi            disable Loongson SIMD optimizations
379   --disable-fast-unaligned consider unaligned accesses slow
380
381 Developer options (useful when working on FFmpeg itself):
382   --disable-debug          disable debugging symbols
383   --enable-debug=LEVEL     set the debug level [$debuglevel]
384   --disable-optimizations  disable compiler optimizations
385   --enable-extra-warnings  enable more compiler warnings
386   --disable-stripping      disable stripping of executables and shared libraries
387   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
388                            2 causes a slowdown at runtime.
389   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
390   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
391                            leaks and errors, using the specified valgrind binary.
392                            Cannot be combined with --target-exec
393   --enable-ftrapv          Trap arithmetic overflows
394   --samples=PATH           location of test samples for FATE, if not set use
395                            \$FATE_SAMPLES at make invocation time.
396   --enable-neon-clobber-test check NEON registers for clobbering (should be
397                            used only for debugging purposes)
398   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
399                            should be used only for debugging purposes)
400   --enable-random          randomly enable/disable components
401   --disable-random
402   --enable-random=LIST     randomly enable/disable specific components or
403   --disable-random=LIST    component groups. LIST is a comma-separated list
404                            of NAME[:PROB] entries where NAME is a component
405                            (group) and PROB the probability associated with
406                            NAME (default 0.5).
407   --random-seed=VALUE      seed value for --enable/disable-random
408   --disable-valgrind-backtrace do not print a backtrace under Valgrind
409                            (only applies to --disable-optimizations builds)
410
411 NOTE: Object files are built at the place where configure is launched.
412 EOF
413   exit 0
414 }
415
416 quotes='""'
417
418 log(){
419     echo "$@" >> $logfile
420 }
421
422 log_file(){
423     log BEGIN $1
424     pr -n -t $1 >> $logfile
425     log END $1
426 }
427
428 echolog(){
429     log "$@"
430     echo "$@"
431 }
432
433 warn(){
434     log "WARNING: $*"
435     WARNINGS="${WARNINGS}WARNING: $*\n"
436 }
437
438 die(){
439     echolog "$@"
440     cat <<EOF
441
442 If you think configure made a mistake, make sure you are using the latest
443 version from Git.  If the latest version fails, report the problem to the
444 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
445 EOF
446     if disabled logging; then
447         cat <<EOF
448 Rerun configure with logging enabled (do not use --disable-logging), and
449 include the log this produces with your report.
450 EOF
451     else
452         cat <<EOF
453 Include the log file "$logfile" produced by configure as this will help
454 solve the problem.
455 EOF
456     fi
457     exit 1
458 }
459
460 # Avoid locale weirdness, besides we really just want to translate ASCII.
461 toupper(){
462     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
463 }
464
465 tolower(){
466     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
467 }
468
469 c_escape(){
470     echo "$*" | sed 's/["\\]/\\\0/g'
471 }
472
473 sh_quote(){
474     v=$(echo "$1" | sed "s/'/'\\\\''/g")
475     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
476     echo "$v"
477 }
478
479 cleanws(){
480     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
481 }
482
483 filter(){
484     pat=$1
485     shift
486     for v; do
487         eval "case $v in $pat) echo $v ;; esac"
488     done
489 }
490
491 filter_out(){
492     pat=$1
493     shift
494     for v; do
495         eval "case $v in $pat) ;; *) echo $v ;; esac"
496     done
497 }
498
499 map(){
500     m=$1
501     shift
502     for v; do eval $m; done
503 }
504
505 add_suffix(){
506     suffix=$1
507     shift
508     for v; do echo ${v}${suffix}; done
509 }
510
511 set_all(){
512     value=$1
513     shift
514     for var in $*; do
515         eval $var=$value
516     done
517 }
518
519 set_weak(){
520     value=$1
521     shift
522     for var; do
523         eval : \${$var:=$value}
524     done
525 }
526
527 sanitize_var_name(){
528     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
529 }
530
531 set_safe(){
532     var=$1
533     shift
534     eval $(sanitize_var_name "$var")='$*'
535 }
536
537 get_safe(){
538     eval echo \$$(sanitize_var_name "$1")
539 }
540
541 pushvar(){
542     for pvar in $*; do
543         eval level=\${${pvar}_level:=0}
544         eval ${pvar}_${level}="\$$pvar"
545         eval ${pvar}_level=$(($level+1))
546     done
547 }
548
549 popvar(){
550     for pvar in $*; do
551         eval level=\${${pvar}_level:-0}
552         test $level = 0 && continue
553         eval level=$(($level-1))
554         eval $pvar="\${${pvar}_${level}}"
555         eval ${pvar}_level=$level
556         eval unset ${pvar}_${level}
557     done
558 }
559
560 enable(){
561     set_all yes $*
562 }
563
564 disable(){
565     set_all no $*
566 }
567
568 enable_weak(){
569     set_weak yes $*
570 }
571
572 disable_weak(){
573     set_weak no $*
574 }
575
576 enable_safe(){
577     for var; do
578         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
579     done
580 }
581
582 disable_safe(){
583     for var; do
584         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
585     done
586 }
587
588 do_enable_deep(){
589     for var; do
590         enabled $var && continue
591         eval sel="\$${var}_select"
592         eval sgs="\$${var}_suggest"
593         pushvar var sgs
594         enable_deep $sel
595         popvar sgs
596         enable_deep_weak $sgs
597         popvar var
598     done
599 }
600
601 enable_deep(){
602     do_enable_deep $*
603     enable $*
604 }
605
606 enable_deep_weak(){
607     for var; do
608         disabled $var && continue
609         pushvar var
610         do_enable_deep $var
611         popvar var
612         enable_weak $var
613     done
614 }
615
616 enabled(){
617     test "${1#!}" = "$1" && op== || op=!=
618     eval test "x\$${1#!}" $op "xyes"
619 }
620
621 disabled(){
622     test "${1#!}" = "$1" && op== || op=!=
623     eval test "x\$${1#!}" $op "xno"
624 }
625
626 enabled_all(){
627     for opt; do
628         enabled $opt || return 1
629     done
630 }
631
632 disabled_all(){
633     for opt; do
634         disabled $opt || return 1
635     done
636 }
637
638 enabled_any(){
639     for opt; do
640         enabled $opt && return 0
641     done
642 }
643
644 disabled_any(){
645     for opt; do
646         disabled $opt && return 0
647     done
648     return 1
649 }
650
651 set_default(){
652     for opt; do
653         eval : \${$opt:=\$${opt}_default}
654     done
655 }
656
657 is_in(){
658     value=$1
659     shift
660     for var in $*; do
661         [ $var = $value ] && return 0
662     done
663     return 1
664 }
665
666 do_check_deps(){
667     for cfg; do
668         cfg="${cfg#!}"
669         enabled ${cfg}_checking && die "Circular dependency for $cfg."
670         disabled ${cfg}_checking && continue
671         enable ${cfg}_checking
672         append allopts $cfg
673
674         eval dep_all="\$${cfg}_deps"
675         eval dep_any="\$${cfg}_deps_any"
676         eval dep_sel="\$${cfg}_select"
677         eval dep_sgs="\$${cfg}_suggest"
678         eval dep_ifa="\$${cfg}_if"
679         eval dep_ifn="\$${cfg}_if_any"
680
681         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
682         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
683         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
684
685         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
686         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
687         enabled_all  $dep_all || disable $cfg
688         enabled_any  $dep_any || disable $cfg
689         disabled_any $dep_sel && disable $cfg
690
691         if enabled $cfg; then
692             enable_deep $dep_sel
693             enable_deep_weak $dep_sgs
694         fi
695
696         disable ${cfg}_checking
697     done
698 }
699
700 check_deps(){
701     unset allopts
702
703     do_check_deps "$@"
704
705     for cfg in $allopts; do
706         enabled $cfg || continue
707         eval dep_extralibs="\$${cfg}_extralibs"
708         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
709     done
710 }
711
712 print_config(){
713     pfx=$1
714     files=$2
715     shift 2
716     map 'eval echo "$v \${$v:-no}"' "$@" |
717     awk "BEGIN { split(\"$files\", files) }
718         {
719             c = \"$pfx\" toupper(\$1);
720             v = \$2;
721             sub(/yes/, 1, v);
722             sub(/no/,  0, v);
723             for (f in files) {
724                 file = files[f];
725                 if (file ~ /\\.h\$/) {
726                     printf(\"#define %s %d\\n\", c, v) >>file;
727                 } else if (file ~ /\\.asm\$/) {
728                     printf(\"%%define %s %d\\n\", c, v) >>file;
729                 } else if (file ~ /\\.mak\$/) {
730                     n = -v ? \"\" : \"!\";
731                     printf(\"%s%s=yes\\n\", n, c) >>file;
732                 } else if (file ~ /\\.texi\$/) {
733                     pre = -v ? \"\" : \"@c \";
734                     yesno = \$2;
735                     c2 = tolower(c);
736                     gsub(/_/, \"-\", c2);
737                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
738                 }
739             }
740         }"
741 }
742
743 print_enabled(){
744     suf=$1
745     shift
746     for v; do
747         enabled $v && printf "%s\n" ${v%$suf};
748     done
749 }
750
751 append(){
752     var=$1
753     shift
754     eval "$var=\"\$$var $*\""
755 }
756
757 prepend(){
758     var=$1
759     shift
760     eval "$var=\"$* \$$var\""
761 }
762
763 unique(){
764     var=$1
765     uniq_list=""
766     for tok in $(eval echo \$$var); do
767         uniq_list="$(filter_out $tok $uniq_list) $tok"
768     done
769     eval "$var=\"${uniq_list}\""
770 }
771
772 add_cppflags(){
773     append CPPFLAGS "$@"
774 }
775
776 add_cflags(){
777     append CFLAGS $($cflags_filter "$@")
778 }
779
780 add_cxxflags(){
781     append CXXFLAGS $($cflags_filter "$@")
782 }
783
784 add_asflags(){
785     append ASFLAGS $($asflags_filter "$@")
786 }
787
788 add_ldflags(){
789     append LDFLAGS $($ldflags_filter "$@")
790 }
791
792 add_ldexeflags(){
793     append LDEXEFLAGS $($ldflags_filter "$@")
794 }
795
796 add_ldlibflags(){
797     append LDLIBFLAGS $($ldflags_filter "$@")
798 }
799
800 add_stripflags(){
801     append ASMSTRIPFLAGS "$@"
802 }
803
804 add_extralibs(){
805     prepend extralibs $($ldflags_filter "$@")
806 }
807
808 add_host_cppflags(){
809     append host_cppflags "$@"
810 }
811
812 add_host_cflags(){
813     append host_cflags $($host_cflags_filter "$@")
814 }
815
816 add_host_ldflags(){
817     append host_ldflags $($host_ldflags_filter "$@")
818 }
819
820 add_compat(){
821     append compat_objs $1
822     shift
823     map 'add_cppflags -D$v' "$@"
824 }
825
826 check_cmd(){
827     log "$@"
828     "$@" >> $logfile 2>&1
829 }
830
831 check_stat(){
832     log check_stat "$@"
833     stat "$1" >> $logfile 2>&1
834 }
835
836 cc_o(){
837     eval printf '%s\\n' $CC_O
838 }
839
840 cc_e(){
841     eval printf '%s\\n' $CC_E
842 }
843
844 check_cc(){
845     log check_cc "$@"
846     cat > $TMPC
847     log_file $TMPC
848     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
849 }
850
851 check_cxx(){
852     log check_cxx "$@"
853     cat > $TMPCPP
854     log_file $TMPCPP
855     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
856 }
857
858 check_oc(){
859     log check_oc "$@"
860     cat > $TMPM
861     log_file $TMPM
862     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
863 }
864
865 check_cpp(){
866     log check_cpp "$@"
867     cat > $TMPC
868     log_file $TMPC
869     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
870 }
871
872 as_o(){
873     eval printf '%s\\n' $AS_O
874 }
875
876 check_as(){
877     log check_as "$@"
878     cat > $TMPS
879     log_file $TMPS
880     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
881 }
882
883 check_inline_asm(){
884     log check_inline_asm "$@"
885     name="$1"
886     code="$2"
887     shift 2
888     disable $name
889     check_cc "$@" <<EOF && enable $name
890 void foo(void){ __asm__ volatile($code); }
891 EOF
892 }
893
894 check_insn(){
895     log check_insn "$@"
896     check_inline_asm ${1}_inline "\"$2\""
897     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
898 }
899
900 check_yasm(){
901     log check_yasm "$@"
902     echo "$1" > $TMPS
903     log_file $TMPS
904     shift 1
905     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
906 }
907
908 ld_o(){
909     eval printf '%s\\n' $LD_O
910 }
911
912 check_ld(){
913     log check_ld "$@"
914     type=$1
915     shift 1
916     flags=$(filter_out '-l*|*.so' $@)
917     libs=$(filter '-l*|*.so' $@)
918     check_$type $($cflags_filter $flags) || return
919     flags=$($ldflags_filter $flags)
920     libs=$($ldflags_filter $libs)
921     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
922 }
923
924 print_include(){
925     hdr=$1
926     test "${hdr%.h}" = "${hdr}" &&
927         echo "#include $hdr"    ||
928         echo "#include <$hdr>"
929 }
930
931 check_code(){
932     log check_code "$@"
933     check=$1
934     headers=$2
935     code=$3
936     shift 3
937     {
938         for hdr in $headers; do
939             print_include $hdr
940         done
941         echo "int main(void) { $code; return 0; }"
942     } | check_$check "$@"
943 }
944
945 check_cppflags(){
946     log check_cppflags "$@"
947     check_cc "$@" <<EOF && append CPPFLAGS "$@"
948 int x;
949 EOF
950 }
951
952 test_cflags(){
953     log test_cflags "$@"
954     set -- $($cflags_filter "$@")
955     check_cc "$@" <<EOF
956 int x;
957 EOF
958 }
959
960 check_cflags(){
961     log check_cflags "$@"
962     test_cflags "$@" && add_cflags "$@"
963 }
964
965 check_cxxflags(){
966     log check_cxxflags "$@"
967     set -- $($cflags_filter "$@")
968     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
969 int x;
970 EOF
971 }
972
973 test_ldflags(){
974     log test_ldflags "$@"
975     check_ld "cc" "$@" <<EOF
976 int main(void){ return 0; }
977 EOF
978 }
979
980 check_ldflags(){
981     log check_ldflags "$@"
982     test_ldflags "$@" && add_ldflags "$@"
983 }
984
985 test_stripflags(){
986     log test_stripflags "$@"
987     # call check_cc to get a fresh TMPO
988     check_cc <<EOF
989 int main(void) { return 0; }
990 EOF
991     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
992 }
993
994 check_stripflags(){
995     log check_stripflags "$@"
996     test_stripflags "$@" && add_stripflags "$@"
997 }
998
999 check_header(){
1000     log check_header "$@"
1001     header=$1
1002     shift
1003     disable_safe $header
1004     check_cpp "$@" <<EOF && enable_safe $header
1005 #include <$header>
1006 int x;
1007 EOF
1008 }
1009
1010 check_header_oc(){
1011     log check_header_oc "$@"
1012     rm -f -- "$TMPO"
1013     header=$1
1014     shift
1015     disable_safe $header
1016     {
1017        echo "#include <$header>"
1018        echo "int main(void) { return 0; }"
1019     } | check_oc && check_stat "$TMPO" && enable_safe $headers
1020 }
1021
1022 check_func(){
1023     log check_func "$@"
1024     func=$1
1025     shift
1026     disable $func
1027     check_ld "cc" "$@" <<EOF && enable $func
1028 extern int $func();
1029 int main(void){ $func(); }
1030 EOF
1031 }
1032
1033 check_mathfunc(){
1034     log check_mathfunc "$@"
1035     func=$1
1036     narg=$2
1037     shift 2
1038     test $narg = 2 && args="f, g" || args="f"
1039     disable $func
1040     check_ld "cc" "$@" <<EOF && enable $func
1041 #include <math.h>
1042 float foo(float f, float g) { return $func($args); }
1043 int main(void){ return (int) foo; }
1044 EOF
1045 }
1046
1047 check_func_headers(){
1048     log check_func_headers "$@"
1049     headers=$1
1050     funcs=$2
1051     shift 2
1052     {
1053         for hdr in $headers; do
1054             print_include $hdr
1055         done
1056         for func in $funcs; do
1057             echo "long check_$func(void) { return (long) $func; }"
1058         done
1059         echo "int main(void) { return 0; }"
1060     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1061 }
1062
1063 check_class_headers_cpp(){
1064     log check_class_headers_cpp "$@"
1065     headers=$1
1066     classes=$2
1067     shift 2
1068     {
1069         for hdr in $headers; do
1070             echo "#include <$hdr>"
1071         done
1072         echo "int main(void) { "
1073         i=1
1074         for class in $classes; do
1075             echo "$class obj$i;"
1076             i=$(expr $i + 1)
1077         done
1078         echo "return 0; }"
1079     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1080 }
1081
1082 check_cpp_condition(){
1083     log check_cpp_condition "$@"
1084     header=$1
1085     condition=$2
1086     shift 2
1087     check_cpp "$@" <<EOF
1088 #include <$header>
1089 #if !($condition)
1090 #error "unsatisfied condition: $condition"
1091 #endif
1092 EOF
1093 }
1094
1095 check_lib(){
1096     log check_lib "$@"
1097     header="$1"
1098     func="$2"
1099     shift 2
1100     check_header $header && check_func $func "$@" && add_extralibs "$@"
1101 }
1102
1103 check_lib2(){
1104     log check_lib2 "$@"
1105     headers="$1"
1106     funcs="$2"
1107     shift 2
1108     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1109 }
1110
1111 check_lib_cpp(){
1112     log check_lib_cpp "$@"
1113     headers="$1"
1114     classes="$2"
1115     shift 2
1116     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1117 }
1118
1119 check_pkg_config(){
1120     log check_pkg_config "$@"
1121     pkgandversion="$1"
1122     pkg="${1%% *}"
1123     headers="$2"
1124     funcs="$3"
1125     shift 3
1126     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1127     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1128     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1129     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1130         set_safe "${pkg}_cflags" $pkg_cflags   &&
1131         set_safe "${pkg}_libs"   $pkg_libs
1132 }
1133
1134 check_exec(){
1135     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1136 }
1137
1138 check_exec_crash(){
1139     code=$(cat)
1140
1141     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1142     # are safe but may not be available everywhere.  Thus we use
1143     # raise(SIGTERM) instead.  The check is run in a subshell so we
1144     # can redirect the "Terminated" message from the shell.  SIGBUS
1145     # is not defined by standard C so it is used conditionally.
1146
1147     (check_exec "$@") >> $logfile 2>&1 <<EOF
1148 #include <signal.h>
1149 static void sighandler(int sig){
1150     raise(SIGTERM);
1151 }
1152 int foo(void){
1153     $code
1154 }
1155 int (*func_ptr)(void) = foo;
1156 int main(void){
1157     signal(SIGILL, sighandler);
1158     signal(SIGFPE, sighandler);
1159     signal(SIGSEGV, sighandler);
1160 #ifdef SIGBUS
1161     signal(SIGBUS, sighandler);
1162 #endif
1163     return func_ptr();
1164 }
1165 EOF
1166 }
1167
1168 check_type(){
1169     log check_type "$@"
1170     headers=$1
1171     type=$2
1172     shift 2
1173     disable_safe "$type"
1174     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1175 }
1176
1177 check_struct(){
1178     log check_struct "$@"
1179     headers=$1
1180     struct=$2
1181     member=$3
1182     shift 3
1183     disable_safe "${struct}_${member}"
1184     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1185         enable_safe "${struct}_${member}"
1186 }
1187
1188 check_builtin(){
1189     log check_builtin "$@"
1190     name=$1
1191     headers=$2
1192     builtin=$3
1193     shift 3
1194     disable "$name"
1195     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1196 }
1197
1198 check_compile_assert(){
1199     log check_compile_assert "$@"
1200     name=$1
1201     headers=$2
1202     condition=$3
1203     shift 3
1204     disable "$name"
1205     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1206 }
1207
1208 require(){
1209     name="$1"
1210     header="$2"
1211     func="$3"
1212     shift 3
1213     check_lib $header $func "$@" || die "ERROR: $name not found"
1214 }
1215
1216 require2(){
1217     name="$1"
1218     headers="$2"
1219     func="$3"
1220     shift 3
1221     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1222 }
1223
1224 require_cpp(){
1225     name="$1"
1226     headers="$2"
1227     classes="$3"
1228     shift 3
1229     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1230 }
1231
1232 use_pkg_config(){
1233     pkg="$1"
1234     check_pkg_config "$@" || return 1
1235     add_cflags    $(get_safe "${pkg}_cflags")
1236     add_extralibs $(get_safe "${pkg}_libs")
1237 }
1238
1239 require_pkg_config(){
1240     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1241 }
1242
1243 require_libfreetype(){
1244     log require_libfreetype "$@"
1245     pkg="freetype2"
1246     check_cmd $pkg_config --exists --print-errors $pkg \
1247       || die "ERROR: $pkg not found"
1248     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1249     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1250     {
1251         echo "#include <ft2build.h>"
1252         echo "#include FT_FREETYPE_H"
1253         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1254         echo "int main(void) { return 0; }"
1255     } | check_ld "cc" $pkg_cflags $pkg_libs \
1256       && set_safe "${pkg}_cflags" $pkg_cflags \
1257       && set_safe "${pkg}_libs"   $pkg_libs \
1258       || die "ERROR: $pkg not found"
1259     add_cflags    $(get_safe "${pkg}_cflags")
1260     add_extralibs $(get_safe "${pkg}_libs")
1261 }
1262
1263 hostcc_e(){
1264     eval printf '%s\\n' $HOSTCC_E
1265 }
1266
1267 hostcc_o(){
1268     eval printf '%s\\n' $HOSTCC_O
1269 }
1270
1271 check_host_cc(){
1272     log check_host_cc "$@"
1273     cat > $TMPC
1274     log_file $TMPC
1275     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1276 }
1277
1278 check_host_cpp(){
1279     log check_host_cpp "$@"
1280     cat > $TMPC
1281     log_file $TMPC
1282     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1283 }
1284
1285 check_host_cppflags(){
1286     log check_host_cppflags "$@"
1287     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1288 int x;
1289 EOF
1290 }
1291
1292 check_host_cflags(){
1293     log check_host_cflags "$@"
1294     set -- $($host_cflags_filter "$@")
1295     check_host_cc "$@" <<EOF && append host_cflags "$@"
1296 int x;
1297 EOF
1298 }
1299
1300 check_host_cpp_condition(){
1301     log check_host_cpp_condition "$@"
1302     header=$1
1303     condition=$2
1304     shift 2
1305     check_host_cpp "$@" <<EOF
1306 #include <$header>
1307 #if !($condition)
1308 #error "unsatisfied condition: $condition"
1309 #endif
1310 EOF
1311 }
1312
1313 apply(){
1314     file=$1
1315     shift
1316     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1317 }
1318
1319 cp_if_changed(){
1320     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1321     mkdir -p "$(dirname $2)"
1322     $cp_f "$1" "$2"
1323 }
1324
1325 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1326 # system-dependent things.
1327
1328 COMPONENT_LIST="
1329     bsfs
1330     decoders
1331     demuxers
1332     encoders
1333     filters
1334     hwaccels
1335     indevs
1336     muxers
1337     outdevs
1338     parsers
1339     protocols
1340 "
1341
1342 EXAMPLE_LIST="
1343     avio_reading_example
1344     avio_list_dir_example
1345     decoding_encoding_example
1346     demuxing_decoding_example
1347     extract_mvs_example
1348     filter_audio_example
1349     filtering_audio_example
1350     filtering_video_example
1351     metadata_example
1352     muxing_example
1353     qsvdec_example
1354     remuxing_example
1355     resampling_audio_example
1356     scaling_video_example
1357     transcode_aac_example
1358     transcoding_example
1359 "
1360
1361 EXTERNAL_LIBRARY_LIST="
1362     avisynth
1363     bzlib
1364     crystalhd
1365     decklink
1366     frei0r
1367     gnutls
1368     iconv
1369     ladspa
1370     libaacplus
1371     libass
1372     libbluray
1373     libbs2b
1374     libcaca
1375     libcdio
1376     libcelt
1377     libdc1394
1378     libdcadec
1379     libfaac
1380     libfdk_aac
1381     libflite
1382     libfontconfig
1383     libfreetype
1384     libfribidi
1385     libgme
1386     libgsm
1387     libiec61883
1388     libilbc
1389     libmfx
1390     libmodplug
1391     libmp3lame
1392     libnut
1393     libopencore_amrnb
1394     libopencore_amrwb
1395     libopencv
1396     libopenh264
1397     libopenjpeg
1398     libopus
1399     libpulse
1400     libquvi
1401     librtmp
1402     libschroedinger
1403     libshine
1404     libsmbclient
1405     libsnappy
1406     libsoxr
1407     libspeex
1408     libssh
1409     libstagefright_h264
1410     libtheora
1411     libtwolame
1412     libutvideo
1413     libv4l2
1414     libvidstab
1415     libvo_aacenc
1416     libvo_amrwbenc
1417     libvorbis
1418     libvpx
1419     libwavpack
1420     libwebp
1421     libx264
1422     libx265
1423     libxavs
1424     libxcb
1425     libxcb_shm
1426     libxcb_shape
1427     libxcb_xfixes
1428     libxvid
1429     libzmq
1430     libzvbi
1431     lzma
1432     mmal
1433     nvenc
1434     openal
1435     opencl
1436     opengl
1437     openssl
1438     sdl
1439     securetransport
1440     x11grab
1441     xlib
1442     zlib
1443 "
1444
1445 DOCUMENT_LIST="
1446     doc
1447     htmlpages
1448     manpages
1449     podpages
1450     txtpages
1451 "
1452
1453 FEATURE_LIST="
1454     ftrapv
1455     gray
1456     hardcoded_tables
1457     runtime_cpudetect
1458     safe_bitstream_reader
1459     shared
1460     small
1461     static
1462     swscale_alpha
1463 "
1464
1465 HWACCEL_LIST="
1466     d3d11va
1467     dxva2
1468     vaapi
1469     vda
1470     vdpau
1471     xvmc
1472 "
1473
1474 LIBRARY_LIST="
1475     avcodec
1476     avdevice
1477     avfilter
1478     avformat
1479     avresample
1480     avutil
1481     postproc
1482     swresample
1483     swscale
1484 "
1485
1486 LICENSE_LIST="
1487     gpl
1488     nonfree
1489     version3
1490 "
1491
1492 PROGRAM_LIST="
1493     ffplay
1494     ffprobe
1495     ffserver
1496     ffmpeg
1497 "
1498
1499 SUBSYSTEM_LIST="
1500     dct
1501     dwt
1502     error_resilience
1503     faan
1504     fast_unaligned
1505     fft
1506     lsp
1507     lzo
1508     mdct
1509     pixelutils
1510     network
1511     rdft
1512 "
1513
1514 CONFIG_LIST="
1515     $COMPONENT_LIST
1516     $DOCUMENT_LIST
1517     $EXAMPLE_LIST
1518     $EXTERNAL_LIBRARY_LIST
1519     $FEATURE_LIST
1520     $HWACCEL_LIST
1521     $LICENSE_LIST
1522     $LIBRARY_LIST
1523     $PROGRAM_LIST
1524     $SUBSYSTEM_LIST
1525     fontconfig
1526     incompatible_libav_abi
1527     memalign_hack
1528     memory_poisoning
1529     neon_clobber_test
1530     pic
1531     pod2man
1532     raise_major
1533     thumb
1534     valgrind_backtrace
1535     xmm_clobber_test
1536 "
1537
1538 THREADS_LIST="
1539     pthreads
1540     os2threads
1541     w32threads
1542 "
1543
1544 ATOMICS_LIST="
1545     atomics_gcc
1546     atomics_suncc
1547     atomics_win32
1548 "
1549
1550 ARCH_LIST="
1551     aarch64
1552     alpha
1553     arm
1554     avr32
1555     avr32_ap
1556     avr32_uc
1557     bfin
1558     ia64
1559     m68k
1560     mips
1561     mips64
1562     parisc
1563     ppc
1564     ppc64
1565     s390
1566     sh4
1567     sparc
1568     sparc64
1569     tilegx
1570     tilepro
1571     tomi
1572     x86
1573     x86_32
1574     x86_64
1575 "
1576
1577 ARCH_EXT_LIST_ARM="
1578     armv5te
1579     armv6
1580     armv6t2
1581     armv8
1582     neon
1583     vfp
1584     vfpv3
1585     setend
1586 "
1587
1588 ARCH_EXT_LIST_MIPS="
1589     mipsfpu
1590     mips32r2
1591     mips32r5
1592     mips64r6
1593     mipsdspr1
1594     mipsdspr2
1595     msa
1596 "
1597
1598 ARCH_EXT_LIST_LOONGSON="
1599     loongson2
1600     loongson3
1601     mmi
1602 "
1603
1604 ARCH_EXT_LIST_X86_SIMD="
1605     amd3dnow
1606     amd3dnowext
1607     avx
1608     avx2
1609     fma3
1610     fma4
1611     mmx
1612     mmxext
1613     sse
1614     sse2
1615     sse3
1616     sse4
1617     sse42
1618     ssse3
1619     xop
1620 "
1621
1622 ARCH_EXT_LIST_PPC="
1623     altivec
1624     dcbzl
1625     ldbrx
1626     power8
1627     ppc4xx
1628     vsx
1629 "
1630
1631 ARCH_EXT_LIST_X86="
1632     $ARCH_EXT_LIST_X86_SIMD
1633     cpunop
1634     i686
1635 "
1636
1637 ARCH_EXT_LIST="
1638     $ARCH_EXT_LIST_ARM
1639     $ARCH_EXT_LIST_PPC
1640     $ARCH_EXT_LIST_X86
1641     $ARCH_EXT_LIST_MIPS
1642     $ARCH_EXT_LIST_LOONGSON
1643 "
1644
1645 ARCH_FEATURES="
1646     aligned_stack
1647     fast_64bit
1648     fast_clz
1649     fast_cmov
1650     local_aligned_8
1651     local_aligned_16
1652     local_aligned_32
1653     simd_align_16
1654 "
1655
1656 BUILTIN_LIST="
1657     atomic_cas_ptr
1658     atomic_compare_exchange
1659     machine_rw_barrier
1660     MemoryBarrier
1661     mm_empty
1662     rdtsc
1663     sarestart
1664     sync_val_compare_and_swap
1665 "
1666 HAVE_LIST_CMDLINE="
1667     inline_asm
1668     symver
1669     yasm
1670 "
1671
1672 HAVE_LIST_PUB="
1673     bigendian
1674     fast_unaligned
1675     incompatible_libav_abi
1676 "
1677
1678 HEADERS_LIST="
1679     alsa_asoundlib_h
1680     altivec_h
1681     arpa_inet_h
1682     asm_types_h
1683     cdio_paranoia_h
1684     cdio_paranoia_paranoia_h
1685     dev_bktr_ioctl_bt848_h
1686     dev_bktr_ioctl_meteor_h
1687     dev_ic_bt8xx_h
1688     dev_video_bktr_ioctl_bt848_h
1689     dev_video_meteor_ioctl_meteor_h
1690     direct_h
1691     dlfcn_h
1692     d3d11_h
1693     dxva_h
1694     ES2_gl_h
1695     gsm_h
1696     io_h
1697     mach_mach_time_h
1698     machine_ioctl_bt848_h
1699     machine_ioctl_meteor_h
1700     malloc_h
1701     openjpeg_1_5_openjpeg_h
1702     OpenGL_gl3_h
1703     poll_h
1704     sndio_h
1705     soundcard_h
1706     sys_mman_h
1707     sys_param_h
1708     sys_resource_h
1709     sys_select_h
1710     sys_soundcard_h
1711     sys_time_h
1712     sys_un_h
1713     sys_videoio_h
1714     termios_h
1715     udplite_h
1716     unistd_h
1717     valgrind_valgrind_h
1718     windows_h
1719     winsock2_h
1720 "
1721
1722 INTRINSICS_LIST="
1723     intrinsics_neon
1724 "
1725
1726 MATH_FUNCS="
1727     atanf
1728     atan2f
1729     cbrt
1730     cbrtf
1731     cosf
1732     exp2
1733     exp2f
1734     expf
1735     isinf
1736     isnan
1737     ldexpf
1738     llrint
1739     llrintf
1740     log2
1741     log2f
1742     log10f
1743     lrint
1744     lrintf
1745     powf
1746     rint
1747     round
1748     roundf
1749     sinf
1750     trunc
1751     truncf
1752 "
1753
1754 SYSTEM_FUNCS="
1755     access
1756     aligned_malloc
1757     clock_gettime
1758     closesocket
1759     CommandLineToArgvW
1760     CoTaskMemFree
1761     CryptGenRandom
1762     dlopen
1763     fcntl
1764     flt_lim
1765     fork
1766     getaddrinfo
1767     gethrtime
1768     getopt
1769     GetProcessAffinityMask
1770     GetProcessMemoryInfo
1771     GetProcessTimes
1772     getrusage
1773     getservbyport
1774     GetSystemTimeAsFileTime
1775     gettimeofday
1776     glob
1777     glXGetProcAddress
1778     gmtime_r
1779     inet_aton
1780     isatty
1781     jack_port_get_latency_range
1782     kbhit
1783     localtime_r
1784     lzo1x_999_compress
1785     mach_absolute_time
1786     MapViewOfFile
1787     memalign
1788     mkstemp
1789     mmap
1790     mprotect
1791     nanosleep
1792     PeekNamedPipe
1793     posix_memalign
1794     pthread_cancel
1795     sched_getaffinity
1796     SetConsoleTextAttribute
1797     SetConsoleCtrlHandler
1798     setmode
1799     setrlimit
1800     Sleep
1801     strerror_r
1802     sysconf
1803     sysctl
1804     usleep
1805     VirtualAlloc
1806     wglGetProcAddress
1807 "
1808
1809 TOOLCHAIN_FEATURES="
1810     as_dn_directive
1811     as_func
1812     as_object_arch
1813     asm_mod_q
1814     attribute_may_alias
1815     attribute_packed
1816     ebp_available
1817     ebx_available
1818     gnu_as
1819     gnu_windres
1820     ibm_asm
1821     inline_asm_labels
1822     inline_asm_nonlocal_labels
1823     inline_asm_direct_symbol_refs
1824     pragma_deprecated
1825     rsync_contimeout
1826     symver_asm_label
1827     symver_gnu_asm
1828     vfp_args
1829     xform_asm
1830     xmm_clobbers
1831 "
1832
1833 TYPES_LIST="
1834     CONDITION_VARIABLE_Ptr
1835     socklen_t
1836     struct_addrinfo
1837     struct_dcadec_exss_info_matrix_encoding
1838     struct_group_source_req
1839     struct_ip_mreq_source
1840     struct_ipv6_mreq
1841     struct_pollfd
1842     struct_rusage_ru_maxrss
1843     struct_sctp_event_subscribe
1844     struct_sockaddr_in6
1845     struct_sockaddr_sa_len
1846     struct_sockaddr_storage
1847     struct_stat_st_mtim_tv_nsec
1848     struct_v4l2_frmivalenum_discrete
1849 "
1850
1851 HAVE_LIST="
1852     $ARCH_EXT_LIST
1853     $(add_suffix _external $ARCH_EXT_LIST)
1854     $(add_suffix _inline   $ARCH_EXT_LIST)
1855     $ARCH_FEATURES
1856     $ATOMICS_LIST
1857     $BUILTIN_LIST
1858     $HAVE_LIST_CMDLINE
1859     $HAVE_LIST_PUB
1860     $HEADERS_LIST
1861     $INTRINSICS_LIST
1862     $MATH_FUNCS
1863     $SYSTEM_FUNCS
1864     $THREADS_LIST
1865     $TOOLCHAIN_FEATURES
1866     $TYPES_LIST
1867     atomics_native
1868     dos_paths
1869     dxva2api_cobj
1870     dxva2_lib
1871     libc_msvcrt
1872     libdc1394_1
1873     libdc1394_2
1874     makeinfo
1875     makeinfo_html
1876     perl
1877     pod2man
1878     sdl
1879     section_data_rel_ro
1880     texi2html
1881     threads
1882     vaapi_x11
1883     vdpau_x11
1884     xlib
1885 "
1886
1887 # options emitted with CONFIG_ prefix but not available on the command line
1888 CONFIG_EXTRA="
1889     aandcttables
1890     ac3dsp
1891     audio_frame_queue
1892     audiodsp
1893     blockdsp
1894     bswapdsp
1895     cabac
1896     dvprofile
1897     exif
1898     faandct
1899     faanidct
1900     fdctdsp
1901     fmtconvert
1902     frame_thread_encoder
1903     gcrypt
1904     gmp
1905     golomb
1906     gplv3
1907     h263dsp
1908     h264chroma
1909     h264dsp
1910     h264pred
1911     h264qpel
1912     hpeldsp
1913     huffman
1914     huffyuvdsp
1915     huffyuvencdsp
1916     idctdsp
1917     iirfilter
1918     imdct15
1919     intrax8
1920     jpegtables
1921     lgplv3
1922     llauddsp
1923     llviddsp
1924     lpc
1925     me_cmp
1926     mpeg_er
1927     mpegaudio
1928     mpegaudiodsp
1929     mpegvideo
1930     mpegvideoenc
1931     pixblockdsp
1932     qpeldsp
1933     qsv
1934     qsvdec
1935     qsvenc
1936     rangecoder
1937     riffdec
1938     riffenc
1939     rtpdec
1940     rtpenc_chain
1941     sinewin
1942     snappy
1943     startcode
1944     texturedsp
1945     texturedspenc
1946     tpeldsp
1947     videodsp
1948     vp3dsp
1949     wma_freqs
1950 "
1951
1952 CMDLINE_SELECT="
1953     $ARCH_EXT_LIST
1954     $CONFIG_LIST
1955     $HAVE_LIST_CMDLINE
1956     $THREADS_LIST
1957     asm
1958     cross_compile
1959     debug
1960     extra_warnings
1961     logging
1962     lto
1963     optimizations
1964     rpath
1965     stripping
1966 "
1967
1968 PATHS_LIST="
1969     bindir
1970     datadir
1971     docdir
1972     incdir
1973     libdir
1974     mandir
1975     pkgconfigdir
1976     prefix
1977     shlibdir
1978 "
1979
1980 CMDLINE_SET="
1981     $PATHS_LIST
1982     ar
1983     arch
1984     as
1985     assert_level
1986     build_suffix
1987     cc
1988     cpu
1989     cross_prefix
1990     cxx
1991     dep_cc
1992     doxygen
1993     env
1994     extra_version
1995     gas
1996     host_cc
1997     host_cflags
1998     host_ld
1999     host_ldflags
2000     host_libs
2001     host_os
2002     install
2003     ld
2004     logfile
2005     malloc_prefix
2006     nm
2007     optflags
2008     pkg_config
2009     pkg_config_flags
2010     progs_suffix
2011     random_seed
2012     ranlib
2013     samples
2014     strip
2015     sws_max_filter_size
2016     sysinclude
2017     sysroot
2018     target_exec
2019     target_os
2020     target_path
2021     target_samples
2022     tempprefix
2023     toolchain
2024     valgrind
2025     yasmexe
2026 "
2027
2028 CMDLINE_APPEND="
2029     extra_cflags
2030     extra_cxxflags
2031     host_cppflags
2032 "
2033
2034 # code dependency declarations
2035
2036 # architecture extensions
2037
2038 armv5te_deps="arm"
2039 armv6_deps="arm"
2040 armv6t2_deps="arm"
2041 armv8_deps="aarch64"
2042 neon_deps_any="aarch64 arm"
2043 intrinsics_neon_deps="neon"
2044 vfp_deps_any="aarch64 arm"
2045 vfpv3_deps="vfp"
2046 setend_deps="arm"
2047
2048 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2049
2050 mipsfpu_deps="mips"
2051 mipsdspr1_deps="mips"
2052 mipsdspr2_deps="mips"
2053 mips32r2_deps="mips"
2054 mips32r5_deps="mips"
2055 mips64r6_deps="mips"
2056 msa_deps="mips"
2057 mmi_deps="mips"
2058
2059 altivec_deps="ppc"
2060 dcbzl_deps="ppc"
2061 ldbrx_deps="ppc"
2062 ppc4xx_deps="ppc"
2063 vsx_deps="altivec"
2064 power8_deps="vsx"
2065
2066 cpunop_deps="i686"
2067 x86_64_select="i686"
2068 x86_64_suggest="fast_cmov"
2069
2070 amd3dnow_deps="mmx"
2071 amd3dnowext_deps="amd3dnow"
2072 i686_deps="x86"
2073 mmx_deps="x86"
2074 mmxext_deps="mmx"
2075 sse_deps="mmxext"
2076 sse2_deps="sse"
2077 sse3_deps="sse2"
2078 ssse3_deps="sse3"
2079 sse4_deps="ssse3"
2080 sse42_deps="sse4"
2081 avx_deps="sse42"
2082 xop_deps="avx"
2083 fma3_deps="avx"
2084 fma4_deps="avx"
2085 avx2_deps="avx"
2086
2087 mmx_external_deps="yasm"
2088 mmx_inline_deps="inline_asm"
2089 mmx_suggest="mmx_external mmx_inline"
2090
2091 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2092     eval dep=\$${ext}_deps
2093     eval ${ext}_external_deps='"${dep}_external"'
2094     eval ${ext}_inline_deps='"${dep}_inline"'
2095     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2096 done
2097
2098 aligned_stack_if_any="aarch64 ppc x86"
2099 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2100 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2101 fast_unaligned_if_any="aarch64 ppc x86"
2102 simd_align_16_if_any="altivec neon sse"
2103
2104 # system capabilities
2105 symver_if_any="symver_asm_label symver_gnu_asm"
2106 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2107
2108 # threading support
2109 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2110 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2111 atomics_win32_if="MemoryBarrier"
2112 atomics_native_if_any="$ATOMICS_LIST"
2113 w32threads_deps="atomics_native"
2114 threads_if_any="$THREADS_LIST"
2115
2116 # subsystems
2117 dct_select="rdft"
2118 error_resilience_select="me_cmp"
2119 faandct_deps="faan fdctdsp"
2120 faanidct_deps="faan idctdsp"
2121 frame_thread_encoder_deps="encoders threads"
2122 intrax8_select="error_resilience"
2123 mdct_select="fft"
2124 rdft_select="fft"
2125 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2126 mpeg_er_select="error_resilience"
2127 mpegaudio_select="mpegaudiodsp"
2128 mpegaudiodsp_select="dct"
2129 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2130 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2131 qsvdec_select="qsv"
2132 qsvenc_select="qsv"
2133
2134 # decoders / encoders
2135 aac_decoder_select="imdct15 mdct sinewin"
2136 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2137 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2138 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2139 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2140 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2141 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2142 aic_decoder_select="golomb idctdsp"
2143 alac_encoder_select="lpc"
2144 als_decoder_select="bswapdsp"
2145 amrnb_decoder_select="lsp"
2146 amrwb_decoder_select="lsp"
2147 amv_decoder_select="sp5x_decoder exif"
2148 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2149 ape_decoder_select="bswapdsp llauddsp"
2150 apng_decoder_select="zlib"
2151 apng_encoder_select="huffyuvencdsp zlib"
2152 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2153 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2154 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2155 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2156 atrac1_decoder_select="mdct sinewin"
2157 atrac3_decoder_select="mdct"
2158 atrac3p_decoder_select="mdct sinewin"
2159 avrn_decoder_select="exif jpegtables"
2160 bink_decoder_select="blockdsp hpeldsp"
2161 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2162 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2163 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2164 cllc_decoder_select="bswapdsp"
2165 comfortnoise_encoder_select="lpc"
2166 cook_decoder_select="audiodsp mdct sinewin"
2167 cscd_decoder_select="lzo"
2168 cscd_decoder_suggest="zlib"
2169 dca_decoder_select="fmtconvert mdct"
2170 dds_decoder_select="texturedsp"
2171 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2172 dnxhd_decoder_select="blockdsp idctdsp"
2173 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2174 dvvideo_decoder_select="dvprofile idctdsp"
2175 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2176 dxa_decoder_select="zlib"
2177 eac3_decoder_select="ac3_decoder"
2178 eac3_encoder_select="ac3_encoder"
2179 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2180 eatgq_decoder_select="aandcttables"
2181 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2182 exr_decoder_select="zlib"
2183 ffv1_decoder_select="golomb rangecoder"
2184 ffv1_encoder_select="rangecoder"
2185 ffvhuff_decoder_select="huffyuv_decoder"
2186 ffvhuff_encoder_select="huffyuv_encoder"
2187 fic_decoder_select="golomb"
2188 flac_decoder_select="golomb"
2189 flac_encoder_select="bswapdsp golomb lpc"
2190 flashsv_decoder_select="zlib"
2191 flashsv_encoder_select="zlib"
2192 flashsv2_encoder_select="zlib"
2193 flashsv2_decoder_select="zlib"
2194 flv_decoder_select="h263_decoder"
2195 flv_encoder_select="h263_encoder"
2196 fourxm_decoder_select="blockdsp bswapdsp"
2197 fraps_decoder_select="bswapdsp huffman"
2198 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2199 g729_decoder_select="audiodsp"
2200 h261_decoder_select="mpeg_er mpegvideo"
2201 h261_encoder_select="aandcttables mpegvideoenc"
2202 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2203 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2204 h263i_decoder_select="h263_decoder"
2205 h263p_decoder_select="h263_decoder"
2206 h263p_encoder_select="h263_encoder"
2207 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2208 h264_decoder_suggest="error_resilience"
2209 h264_qsv_decoder_deps="libmfx"
2210 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2211 h264_qsv_encoder_deps="libmfx"
2212 h264_qsv_encoder_select="qsvenc"
2213 hap_decoder_select="snappy texturedsp"
2214 hap_encoder_deps="libsnappy"
2215 hap_encoder_select="texturedspenc"
2216 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2217 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2218 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2219 iac_decoder_select="imc_decoder"
2220 imc_decoder_select="bswapdsp fft mdct sinewin"
2221 indeo3_decoder_select="hpeldsp"
2222 interplay_video_decoder_select="hpeldsp"
2223 jpegls_decoder_select="golomb mjpeg_decoder"
2224 jpegls_encoder_select="golomb"
2225 jv_decoder_select="blockdsp"
2226 lagarith_decoder_select="huffyuvdsp"
2227 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2228 loco_decoder_select="golomb"
2229 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2230 metasound_decoder_select="lsp mdct sinewin"
2231 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2232 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2233 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2234 mjpegb_decoder_select="mjpeg_decoder"
2235 mlp_decoder_select="mlp_parser"
2236 motionpixels_decoder_select="bswapdsp"
2237 mp1_decoder_select="mpegaudio"
2238 mp1float_decoder_select="mpegaudio"
2239 mp2_decoder_select="mpegaudio"
2240 mp2float_decoder_select="mpegaudio"
2241 mp3_decoder_select="mpegaudio"
2242 mp3adu_decoder_select="mpegaudio"
2243 mp3adufloat_decoder_select="mpegaudio"
2244 mp3float_decoder_select="mpegaudio"
2245 mp3on4_decoder_select="mpegaudio"
2246 mp3on4float_decoder_select="mpegaudio"
2247 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2248 mpc8_decoder_select="mpegaudiodsp"
2249 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2250 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2251 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2252 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2253 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2254 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2255 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2256 mpeg2_qsv_encoder_select="qsvenc"
2257 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2258 mpeg4_encoder_select="h263_encoder"
2259 msmpeg4v1_decoder_select="h263_decoder"
2260 msmpeg4v2_decoder_select="h263_decoder"
2261 msmpeg4v2_encoder_select="h263_encoder"
2262 msmpeg4v3_decoder_select="h263_decoder"
2263 msmpeg4v3_encoder_select="h263_encoder"
2264 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2265 mxpeg_decoder_select="mjpeg_decoder"
2266 nellymoser_decoder_select="mdct sinewin"
2267 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2268 nuv_decoder_select="idctdsp lzo"
2269 on2avc_decoder_select="mdct"
2270 opus_decoder_deps="swresample"
2271 opus_decoder_select="imdct15"
2272 png_decoder_select="zlib"
2273 png_encoder_select="huffyuvencdsp zlib"
2274 prores_decoder_select="blockdsp idctdsp"
2275 prores_encoder_select="fdctdsp"
2276 qcelp_decoder_select="lsp"
2277 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2278 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2279 ra_144_decoder_select="audiodsp"
2280 ralf_decoder_select="golomb"
2281 rawvideo_decoder_select="bswapdsp"
2282 rtjpeg_decoder_select="me_cmp"
2283 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2284 rv10_encoder_select="h263_encoder"
2285 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2286 rv20_encoder_select="h263_encoder"
2287 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2288 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2289 shorten_decoder_select="golomb"
2290 sipr_decoder_select="lsp"
2291 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2292 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2293 sonic_decoder_select="golomb rangecoder"
2294 sonic_encoder_select="golomb rangecoder"
2295 sonic_ls_encoder_select="golomb rangecoder"
2296 sp5x_decoder_select="mjpeg_decoder"
2297 svq1_decoder_select="hpeldsp"
2298 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2299 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2300 svq3_decoder_suggest="zlib"
2301 tak_decoder_select="audiodsp"
2302 tdsc_decoder_select="zlib mjpeg_decoder"
2303 theora_decoder_select="vp3_decoder"
2304 thp_decoder_select="mjpeg_decoder"
2305 tiff_decoder_suggest="zlib lzma"
2306 tiff_encoder_suggest="zlib"
2307 truehd_decoder_select="mlp_parser"
2308 truemotion2_decoder_select="bswapdsp"
2309 truespeech_decoder_select="bswapdsp"
2310 tscc_decoder_select="zlib"
2311 twinvq_decoder_select="mdct lsp sinewin"
2312 txd_decoder_select="texturedsp"
2313 utvideo_decoder_select="bswapdsp"
2314 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2315 vble_decoder_select="huffyuvdsp"
2316 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2317 vc1image_decoder_select="vc1_decoder"
2318 vorbis_decoder_select="mdct"
2319 vorbis_encoder_select="mdct"
2320 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2321 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2322 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2323 vp6a_decoder_select="vp6_decoder"
2324 vp6f_decoder_select="vp6_decoder"
2325 vp7_decoder_select="h264pred videodsp"
2326 vp8_decoder_select="h264pred videodsp"
2327 vp9_decoder_select="videodsp vp9_parser"
2328 webp_decoder_select="vp8_decoder"
2329 wmalossless_decoder_select="llauddsp"
2330 wmapro_decoder_select="mdct sinewin wma_freqs"
2331 wmav1_decoder_select="mdct sinewin wma_freqs"
2332 wmav1_encoder_select="mdct sinewin wma_freqs"
2333 wmav2_decoder_select="mdct sinewin wma_freqs"
2334 wmav2_encoder_select="mdct sinewin wma_freqs"
2335 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2336 wmv1_decoder_select="h263_decoder"
2337 wmv1_encoder_select="h263_encoder"
2338 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2339 wmv2_encoder_select="h263_encoder"
2340 wmv3_decoder_select="vc1_decoder"
2341 wmv3image_decoder_select="wmv3_decoder"
2342 zerocodec_decoder_select="zlib"
2343 zlib_decoder_select="zlib"
2344 zlib_encoder_select="zlib"
2345 zmbv_decoder_select="zlib"
2346 zmbv_encoder_select="zlib"
2347
2348 # hardware accelerators
2349 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2350 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2351 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2352 vaapi_deps="va_va_h"
2353 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2354 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2355 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2356 xvmc_deps="X11_extensions_XvMClib_h"
2357
2358 h263_vaapi_hwaccel_deps="vaapi"
2359 h263_vaapi_hwaccel_select="h263_decoder"
2360 h263_vdpau_hwaccel_deps="vdpau"
2361 h263_vdpau_hwaccel_select="h263_decoder"
2362 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2363 h264_d3d11va_hwaccel_deps="d3d11va"
2364 h264_d3d11va_hwaccel_select="h264_decoder"
2365 h264_dxva2_hwaccel_deps="dxva2"
2366 h264_dxva2_hwaccel_select="h264_decoder"
2367 h264_mmal_decoder_deps="mmal"
2368 h264_mmal_hwaccel_deps="mmal"
2369 h264_mmal_decoder_select="h264_decoder"
2370 h264_mmal_encoder_deps="mmal"
2371 h264_qsv_hwaccel_deps="libmfx"
2372 h264_vaapi_hwaccel_deps="vaapi"
2373 h264_vaapi_hwaccel_select="h264_decoder"
2374 h264_vda_decoder_deps="vda"
2375 h264_vda_decoder_select="h264_decoder"
2376 h264_vda_hwaccel_deps="vda"
2377 h264_vda_hwaccel_select="h264_decoder"
2378 h264_vda_old_hwaccel_deps="vda"
2379 h264_vda_old_hwaccel_select="h264_decoder"
2380 h264_vdpau_decoder_deps="vdpau"
2381 h264_vdpau_decoder_select="h264_decoder"
2382 h264_vdpau_hwaccel_deps="vdpau"
2383 h264_vdpau_hwaccel_select="h264_decoder"
2384 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2385 hevc_d3d11va_hwaccel_select="hevc_decoder"
2386 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2387 hevc_dxva2_hwaccel_select="hevc_decoder"
2388 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2389 hevc_vdpau_hwaccel_select="hevc_decoder"
2390 mpeg_vdpau_decoder_deps="vdpau"
2391 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2392 mpeg_xvmc_hwaccel_deps="xvmc"
2393 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2394 mpeg1_vdpau_decoder_deps="vdpau"
2395 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2396 mpeg1_vdpau_hwaccel_deps="vdpau"
2397 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2398 mpeg1_xvmc_hwaccel_deps="xvmc"
2399 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2400 mpeg2_crystalhd_decoder_select="crystalhd"
2401 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2402 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2403 mpeg2_dxva2_hwaccel_deps="dxva2"
2404 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2405 mpeg2_vaapi_hwaccel_deps="vaapi"
2406 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2407 mpeg2_vdpau_hwaccel_deps="vdpau"
2408 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2409 mpeg2_xvmc_hwaccel_deps="xvmc"
2410 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2411 mpeg4_crystalhd_decoder_select="crystalhd"
2412 mpeg4_vaapi_hwaccel_deps="vaapi"
2413 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2414 mpeg4_vdpau_decoder_deps="vdpau"
2415 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2416 mpeg4_vdpau_hwaccel_deps="vdpau"
2417 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2418 msmpeg4_crystalhd_decoder_select="crystalhd"
2419 vc1_crystalhd_decoder_select="crystalhd"
2420 vc1_d3d11va_hwaccel_deps="d3d11va"
2421 vc1_d3d11va_hwaccel_select="vc1_decoder"
2422 vc1_dxva2_hwaccel_deps="dxva2"
2423 vc1_dxva2_hwaccel_select="vc1_decoder"
2424 vc1_vaapi_hwaccel_deps="vaapi"
2425 vc1_vaapi_hwaccel_select="vc1_decoder"
2426 vc1_vdpau_decoder_deps="vdpau"
2427 vc1_vdpau_decoder_select="vc1_decoder"
2428 vc1_vdpau_hwaccel_deps="vdpau"
2429 vc1_vdpau_hwaccel_select="vc1_decoder"
2430 wmv3_crystalhd_decoder_select="crystalhd"
2431 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2432 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2433 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2434 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2435 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2436
2437 # parsers
2438 h264_parser_select="h264_decoder"
2439 hevc_parser_select="hevc_decoder"
2440 mpegvideo_parser_select="mpegvideo"
2441 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2442 vc1_parser_select="mpegvideo startcode vc1_decoder"
2443
2444 # bitstream_filters
2445 mjpeg2jpeg_bsf_select="jpegtables"
2446
2447 # external libraries
2448 libaacplus_encoder_deps="libaacplus"
2449 libcelt_decoder_deps="libcelt"
2450 libdcadec_decoder_deps="libdcadec"
2451 libfaac_encoder_deps="libfaac"
2452 libfaac_encoder_select="audio_frame_queue"
2453 libfdk_aac_decoder_deps="libfdk_aac"
2454 libfdk_aac_encoder_deps="libfdk_aac"
2455 libfdk_aac_encoder_select="audio_frame_queue"
2456 libgme_demuxer_deps="libgme"
2457 libgsm_decoder_deps="libgsm"
2458 libgsm_encoder_deps="libgsm"
2459 libgsm_ms_decoder_deps="libgsm"
2460 libgsm_ms_encoder_deps="libgsm"
2461 libilbc_decoder_deps="libilbc"
2462 libilbc_encoder_deps="libilbc"
2463 libmodplug_demuxer_deps="libmodplug"
2464 libmp3lame_encoder_deps="libmp3lame"
2465 libmp3lame_encoder_select="audio_frame_queue"
2466 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2467 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2468 libopencore_amrnb_encoder_select="audio_frame_queue"
2469 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2470 libopenh264_encoder_deps="libopenh264"
2471 libopenjpeg_decoder_deps="libopenjpeg"
2472 libopenjpeg_encoder_deps="libopenjpeg"
2473 libopus_decoder_deps="libopus"
2474 libopus_encoder_deps="libopus"
2475 libopus_encoder_select="audio_frame_queue"
2476 libquvi_demuxer_deps="libquvi"
2477 libschroedinger_decoder_deps="libschroedinger"
2478 libschroedinger_encoder_deps="libschroedinger"
2479 libshine_encoder_deps="libshine"
2480 libshine_encoder_select="audio_frame_queue"
2481 libspeex_decoder_deps="libspeex"
2482 libspeex_encoder_deps="libspeex"
2483 libspeex_encoder_select="audio_frame_queue"
2484 libstagefright_h264_decoder_deps="libstagefright_h264"
2485 libtheora_encoder_deps="libtheora"
2486 libtwolame_encoder_deps="libtwolame"
2487 libvo_aacenc_encoder_deps="libvo_aacenc"
2488 libvo_aacenc_encoder_select="audio_frame_queue"
2489 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2490 libvorbis_decoder_deps="libvorbis"
2491 libvorbis_encoder_deps="libvorbis"
2492 libvorbis_encoder_select="audio_frame_queue"
2493 libvpx_vp8_decoder_deps="libvpx"
2494 libvpx_vp8_encoder_deps="libvpx"
2495 libvpx_vp9_decoder_deps="libvpx"
2496 libvpx_vp9_encoder_deps="libvpx"
2497 libwavpack_encoder_deps="libwavpack"
2498 libwebp_encoder_deps="libwebp"
2499 libwebp_anim_encoder_deps="libwebp"
2500 libx264_encoder_deps="libx264"
2501 libx264rgb_encoder_deps="libx264"
2502 libx264rgb_encoder_select="libx264_encoder"
2503 libx265_encoder_deps="libx265"
2504 libxavs_encoder_deps="libxavs"
2505 libxvid_encoder_deps="libxvid"
2506 libutvideo_decoder_deps="libutvideo"
2507 libutvideo_encoder_deps="libutvideo"
2508 libzvbi_teletext_decoder_deps="libzvbi"
2509 nvenc_encoder_deps="nvenc"
2510 nvenc_h264_encoder_deps="nvenc"
2511 nvenc_hevc_encoder_deps="nvenc"
2512
2513 # demuxers / muxers
2514 ac3_demuxer_select="ac3_parser"
2515 asf_demuxer_select="riffdec"
2516 asf_o_demuxer_select="riffdec"
2517 asf_muxer_select="riffenc"
2518 asf_stream_muxer_select="asf_muxer"
2519 avi_demuxer_select="riffdec exif"
2520 avi_muxer_select="riffenc"
2521 avisynth_demuxer_deps="avisynth"
2522 avisynth_demuxer_select="riffdec"
2523 caf_demuxer_select="riffdec"
2524 dash_muxer_select="mp4_muxer"
2525 dirac_demuxer_select="dirac_parser"
2526 dts_demuxer_select="dca_parser"
2527 dtshd_demuxer_select="dca_parser"
2528 dv_demuxer_select="dvprofile"
2529 dv_muxer_select="dvprofile"
2530 dxa_demuxer_select="riffdec"
2531 eac3_demuxer_select="ac3_parser"
2532 f4v_muxer_select="mov_muxer"
2533 flac_demuxer_select="flac_parser"
2534 hds_muxer_select="flv_muxer"
2535 hls_muxer_select="mpegts_muxer"
2536 image2_alias_pix_demuxer_select="image2_demuxer"
2537 image2_brender_pix_demuxer_select="image2_demuxer"
2538 ipod_muxer_select="mov_muxer"
2539 ismv_muxer_select="mov_muxer"
2540 libnut_demuxer_deps="libnut"
2541 libnut_muxer_deps="libnut"
2542 matroska_audio_muxer_select="matroska_muxer"
2543 matroska_demuxer_select="riffdec"
2544 matroska_demuxer_suggest="bzlib lzo zlib"
2545 matroska_muxer_select="riffenc"
2546 mmf_muxer_select="riffenc"
2547 mov_demuxer_select="riffdec"
2548 mov_demuxer_suggest="zlib"
2549 mov_muxer_select="riffenc rtpenc_chain"
2550 mp3_demuxer_select="mpegaudio_parser"
2551 mp4_muxer_select="mov_muxer"
2552 mpegts_muxer_select="adts_muxer latm_muxer"
2553 mpegtsraw_demuxer_select="mpegts_demuxer"
2554 mxf_d10_muxer_select="mxf_muxer"
2555 mxf_opatom_muxer_select="mxf_muxer"
2556 nut_muxer_select="riffenc"
2557 nuv_demuxer_select="riffdec"
2558 oga_muxer_select="ogg_muxer"
2559 ogg_demuxer_select="golomb"
2560 opus_muxer_select="ogg_muxer"
2561 psp_muxer_select="mov_muxer"
2562 rtp_demuxer_select="sdp_demuxer"
2563 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2564 rtsp_demuxer_select="http_protocol rtpdec"
2565 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2566 sap_demuxer_select="sdp_demuxer"
2567 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2568 sdp_demuxer_select="rtpdec"
2569 smoothstreaming_muxer_select="ismv_muxer"
2570 spdif_muxer_select="aac_parser"
2571 spx_muxer_select="ogg_muxer"
2572 tak_demuxer_select="tak_parser"
2573 tg2_muxer_select="mov_muxer"
2574 tgp_muxer_select="mov_muxer"
2575 vobsub_demuxer_select="mpegps_demuxer"
2576 w64_demuxer_select="wav_demuxer"
2577 w64_muxer_select="wav_muxer"
2578 wav_demuxer_select="riffdec"
2579 wav_muxer_select="riffenc"
2580 webm_muxer_select="riffenc"
2581 wtv_demuxer_select="riffdec"
2582 wtv_muxer_select="riffenc"
2583 xmv_demuxer_select="riffdec"
2584 xwma_demuxer_select="riffdec"
2585
2586 # indevs / outdevs
2587 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2588 alsa_outdev_deps="alsa_asoundlib_h"
2589 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2590 avfoundation_indev_select="avfoundation"
2591 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2592 caca_outdev_deps="libcaca"
2593 decklink_outdev_deps="decklink pthreads"
2594 decklink_outdev_extralibs="-lstdc++"
2595 decklink_indev_deps="decklink pthreads"
2596 decklink_indev_extralibs="-lstdc++"
2597 dshow_indev_deps="IBaseFilter"
2598 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2599 dv1394_indev_deps="dv1394"
2600 dv1394_indev_select="dv_demuxer"
2601 fbdev_indev_deps="linux_fb_h"
2602 fbdev_outdev_deps="linux_fb_h"
2603 gdigrab_indev_deps="CreateDIBSection"
2604 gdigrab_indev_extralibs="-lgdi32"
2605 gdigrab_indev_select="bmp_decoder"
2606 iec61883_indev_deps="libiec61883"
2607 jack_indev_deps="jack_jack_h sem_timedwait"
2608 lavfi_indev_deps="avfilter"
2609 libcdio_indev_deps="libcdio"
2610 libdc1394_indev_deps="libdc1394"
2611 libv4l2_indev_deps="libv4l2"
2612 openal_indev_deps="openal"
2613 opengl_outdev_deps="opengl"
2614 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2615 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2616 pulse_indev_deps="libpulse"
2617 pulse_outdev_deps="libpulse"
2618 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2619 qtkit_indev_select="qtkit"
2620 sdl_outdev_deps="sdl"
2621 sndio_indev_deps="sndio_h"
2622 sndio_outdev_deps="sndio_h"
2623 v4l_indev_deps="linux_videodev_h"
2624 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2625 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2626 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2627 vfwcap_indev_extralibs="-lavicap32"
2628 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2629 xv_outdev_extralibs="-lXv -lX11 -lXext"
2630 x11grab_indev_deps="x11grab"
2631 x11grab_xcb_indev_deps="libxcb"
2632
2633 # protocols
2634 bluray_protocol_deps="libbluray"
2635 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2636 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2637 ffrtmpcrypt_protocol_select="tcp_protocol"
2638 ffrtmphttp_protocol_deps="!librtmp_protocol"
2639 ffrtmphttp_protocol_select="http_protocol"
2640 ftp_protocol_select="tcp_protocol"
2641 gopher_protocol_select="network"
2642 http_protocol_select="tcp_protocol"
2643 httpproxy_protocol_select="tcp_protocol"
2644 https_protocol_select="tls_protocol"
2645 icecast_protocol_select="http_protocol"
2646 librtmp_protocol_deps="librtmp"
2647 librtmpe_protocol_deps="librtmp"
2648 librtmps_protocol_deps="librtmp"
2649 librtmpt_protocol_deps="librtmp"
2650 librtmpte_protocol_deps="librtmp"
2651 libsmbclient_protocol_deps="libsmbclient gplv3"
2652 libssh_protocol_deps="libssh"
2653 mmsh_protocol_select="http_protocol"
2654 mmst_protocol_select="network"
2655 rtmp_protocol_deps="!librtmp_protocol"
2656 rtmp_protocol_select="tcp_protocol"
2657 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2658 rtmps_protocol_deps="!librtmp_protocol"
2659 rtmps_protocol_select="tls_protocol"
2660 rtmpt_protocol_select="ffrtmphttp_protocol"
2661 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2662 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2663 rtp_protocol_select="udp_protocol"
2664 sctp_protocol_deps="struct_sctp_event_subscribe"
2665 sctp_protocol_select="network"
2666 srtp_protocol_select="rtp_protocol"
2667 tcp_protocol_select="network"
2668 tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"
2669 tls_gnutls_protocol_select="tcp_protocol"
2670 tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"
2671 tls_openssl_protocol_select="tcp_protocol"
2672 tls_securetransport_protocol_deps="securetransport"
2673 tls_securetransport_protocol_select="tcp_protocol"
2674 tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2675 udp_protocol_select="network"
2676 udplite_protocol_select="network"
2677 unix_protocol_deps="sys_un_h"
2678 unix_protocol_select="network"
2679
2680 # filters
2681 amovie_filter_deps="avcodec avformat"
2682 aresample_filter_deps="swresample"
2683 ass_filter_deps="libass"
2684 asyncts_filter_deps="avresample"
2685 atempo_filter_deps="avcodec"
2686 atempo_filter_select="rdft"
2687 azmq_filter_deps="libzmq"
2688 blackframe_filter_deps="gpl"
2689 boxblur_filter_deps="gpl"
2690 bs2b_filter_deps="libbs2b"
2691 colormatrix_filter_deps="gpl"
2692 cover_rect_filter_deps="avcodec avformat gpl"
2693 cropdetect_filter_deps="gpl"
2694 delogo_filter_deps="gpl"
2695 deshake_filter_select="pixelutils"
2696 drawtext_filter_deps="libfreetype"
2697 ebur128_filter_deps="gpl"
2698 eq_filter_deps="gpl"
2699 fftfilt_filter_deps="avcodec"
2700 fftfilt_filter_select="rdft"
2701 flite_filter_deps="libflite"
2702 find_rect_filter_deps="avcodec avformat gpl"
2703 frei0r_filter_deps="frei0r dlopen"
2704 frei0r_src_filter_deps="frei0r dlopen"
2705 fspp_filter_deps="gpl"
2706 geq_filter_deps="gpl"
2707 histeq_filter_deps="gpl"
2708 hqdn3d_filter_deps="gpl"
2709 interlace_filter_deps="gpl"
2710 kerndeint_filter_deps="gpl"
2711 ladspa_filter_deps="ladspa dlopen"
2712 mcdeint_filter_deps="avcodec gpl"
2713 movie_filter_deps="avcodec avformat"
2714 mpdecimate_filter_deps="gpl"
2715 mpdecimate_filter_select="pixelutils"
2716 mptestsrc_filter_deps="gpl"
2717 negate_filter_deps="lut_filter"
2718 perspective_filter_deps="gpl"
2719 pp7_filter_deps="gpl"
2720 ocv_filter_deps="libopencv"
2721 owdenoise_filter_deps="gpl"
2722 pan_filter_deps="swresample"
2723 phase_filter_deps="gpl"
2724 pp_filter_deps="gpl postproc"
2725 pullup_filter_deps="gpl"
2726 removelogo_filter_deps="avcodec avformat swscale"
2727 repeatfields_filter_deps="gpl"
2728 resample_filter_deps="avresample"
2729 sab_filter_deps="gpl swscale"
2730 scale_filter_deps="swscale"
2731 select_filter_select="pixelutils"
2732 smartblur_filter_deps="gpl swscale"
2733 showcqt_filter_deps="avcodec"
2734 showcqt_filter_select="fft"
2735 showspectrum_filter_deps="avcodec"
2736 showspectrum_filter_select="rdft"
2737 spp_filter_deps="gpl avcodec"
2738 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2739 stereo3d_filter_deps="gpl"
2740 subtitles_filter_deps="avformat avcodec libass"
2741 super2xsai_filter_deps="gpl"
2742 tinterlace_filter_deps="gpl"
2743 vidstabdetect_filter_deps="libvidstab"
2744 vidstabtransform_filter_deps="libvidstab"
2745 pixfmts_super2xsai_test_deps="super2xsai_filter"
2746 tinterlace_merge_test_deps="tinterlace_filter"
2747 tinterlace_pad_test_deps="tinterlace_filter"
2748 uspp_filter_deps="gpl avcodec"
2749 zmq_filter_deps="libzmq"
2750 zoompan_filter_deps="swscale"
2751
2752 # examples
2753 avio_reading="avformat avcodec avutil"
2754 avio_list_dir="avformat avutil"
2755 avcodec_example_deps="avcodec avutil"
2756 decoding_encoding_example_deps="avcodec avformat avutil"
2757 demuxing_decoding_example_deps="avcodec avformat avutil"
2758 extract_mvs_example_deps="avcodec avformat avutil"
2759 filter_audio_example_deps="avfilter avutil"
2760 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2761 filtering_video_example_deps="avfilter avcodec avformat avutil"
2762 metadata_example_deps="avformat avutil"
2763 muxing_example_deps="avcodec avformat avutil swscale"
2764 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2765 remuxing_example_deps="avcodec avformat avutil"
2766 resampling_audio_example_deps="avutil swresample"
2767 scaling_video_example_deps="avutil swscale"
2768 transcode_aac_example_deps="avcodec avformat swresample"
2769 transcoding_example_deps="avfilter avcodec avformat avutil"
2770
2771 # libraries, in linking order
2772 avcodec_deps="avutil"
2773 avdevice_deps="avformat avcodec avutil"
2774 avfilter_deps="avutil"
2775 avformat_deps="avcodec avutil"
2776 avresample_deps="avutil"
2777 postproc_deps="avutil gpl"
2778 swresample_deps="avutil"
2779 swscale_deps="avutil"
2780
2781 # programs
2782 ffmpeg_deps="avcodec avfilter avformat swresample"
2783 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2784                null_filter
2785                setpts_filter trim_filter"
2786 ffplay_deps="avcodec avformat swscale swresample sdl"
2787 ffplay_libs='$sdl_libs'
2788 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2789 ffprobe_deps="avcodec avformat"
2790 ffserver_deps="avformat fork sarestart"
2791 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2792
2793 # documentation
2794 podpages_deps="perl"
2795 manpages_deps="perl pod2man"
2796 htmlpages_deps="perl"
2797 htmlpages_deps_any="makeinfo_html texi2html"
2798 txtpages_deps="perl makeinfo"
2799 doc_deps_any="manpages htmlpages podpages txtpages"
2800
2801 # default parameters
2802
2803 logfile="config.log"
2804
2805 # installation paths
2806 prefix_default="/usr/local"
2807 bindir_default='${prefix}/bin'
2808 datadir_default='${prefix}/share/ffmpeg'
2809 docdir_default='${prefix}/share/doc/ffmpeg'
2810 incdir_default='${prefix}/include'
2811 libdir_default='${prefix}/lib'
2812 mandir_default='${prefix}/share/man'
2813
2814 # toolchain
2815 ar_default="ar"
2816 cc_default="gcc"
2817 cxx_default="g++"
2818 host_cc_default="gcc"
2819 cp_f="cp -f"
2820 doxygen_default="doxygen"
2821 install="install"
2822 ln_s="ln -s -f"
2823 nm_default="nm -g"
2824 objformat="elf"
2825 pkg_config_default=pkg-config
2826 ranlib_default="ranlib"
2827 strip_default="strip"
2828 yasmexe_default="yasm"
2829 windres_default="windres"
2830
2831 # OS
2832 target_os_default=$(tolower $(uname -s))
2833 host_os=$target_os_default
2834
2835 # machine
2836 if test "$target_os_default" = aix; then
2837     arch_default=$(uname -p)
2838     strip_default="strip -X32_64"
2839 else
2840     arch_default=$(uname -m)
2841 fi
2842 cpu="generic"
2843 intrinsics="none"
2844
2845 # configurable options
2846 enable $PROGRAM_LIST
2847 enable $DOCUMENT_LIST
2848 enable $EXAMPLE_LIST
2849 enable $(filter_out avresample $LIBRARY_LIST)
2850 enable stripping
2851
2852 enable asm
2853 enable debug
2854 enable doc
2855 enable faan faandct faanidct
2856 enable optimizations
2857 enable runtime_cpudetect
2858 enable safe_bitstream_reader
2859 enable static
2860 enable swscale_alpha
2861 enable valgrind_backtrace
2862
2863 sws_max_filter_size_default=256
2864 set_default sws_max_filter_size
2865
2866 # Enable hwaccels by default.
2867 enable d3d11va dxva2 vaapi vda vdpau xvmc
2868 enable xlib
2869
2870 # build settings
2871 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2872 LIBPREF="lib"
2873 LIBSUF=".a"
2874 FULLNAME='$(NAME)$(BUILDSUF)'
2875 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2876 SLIBPREF="lib"
2877 SLIBSUF=".so"
2878 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2879 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2880 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2881 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2882 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2883 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2884
2885 asflags_filter=echo
2886 cflags_filter=echo
2887 ldflags_filter=echo
2888
2889 AS_C='-c'
2890 AS_O='-o $@'
2891 CC_C='-c'
2892 CC_E='-E -o $@'
2893 CC_O='-o $@'
2894 CXX_C='-c'
2895 CXX_O='-o $@'
2896 LD_O='-o $@'
2897 LD_LIB='-l%'
2898 LD_PATH='-L'
2899 HOSTCC_C='-c'
2900 HOSTCC_E='-E -o $@'
2901 HOSTCC_O='-o $@'
2902 HOSTLD_O='-o $@'
2903
2904 host_libs='-lm'
2905 host_cflags_filter=echo
2906 host_ldflags_filter=echo
2907
2908 target_path='$(CURDIR)'
2909
2910 # since the object filename is not given with the -MM flag, the compiler
2911 # is only able to print the basename, and we must add the path ourselves
2912 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2913 DEPFLAGS='-MM'
2914
2915 # find source path
2916 if test -f configure; then
2917     source_path=.
2918 else
2919     source_path=$(cd $(dirname "$0"); pwd)
2920     echo "$source_path" | grep -q '[[:blank:]]' &&
2921         die "Out of tree builds are impossible with whitespace in source path."
2922     test -e "$source_path/config.h" &&
2923         die "Out of tree builds are impossible with config.h in source dir."
2924 fi
2925
2926 for v in "$@"; do
2927     r=${v#*=}
2928     l=${v%"$r"}
2929     r=$(sh_quote "$r")
2930     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2931 done
2932
2933 find_things(){
2934     thing=$1
2935     pattern=$2
2936     file=$source_path/$3
2937     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2938 }
2939
2940 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2941 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2942 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2943 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2944 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2945 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2946 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2947 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2948 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2949 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2950 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2951
2952 ALL_COMPONENTS="
2953     $BSF_LIST
2954     $DECODER_LIST
2955     $DEMUXER_LIST
2956     $ENCODER_LIST
2957     $FILTER_LIST
2958     $HWACCEL_LIST
2959     $INDEV_LIST
2960     $MUXER_LIST
2961     $OUTDEV_LIST
2962     $PARSER_LIST
2963     $PROTOCOL_LIST
2964 "
2965
2966 for n in $COMPONENT_LIST; do
2967     v=$(toupper ${n%s})_LIST
2968     eval enable \$$v
2969     eval ${n}_if_any="\$$v"
2970 done
2971
2972 enable $ARCH_EXT_LIST
2973
2974 die_unknown(){
2975     echo "Unknown option \"$1\"."
2976     echo "See $0 --help for available options."
2977     exit 1
2978 }
2979
2980 print_3_columns() {
2981     cat | tr ' ' '\n' | sort | pr -r -3 -t
2982 }
2983
2984 show_list() {
2985     suffix=_$1
2986     shift
2987     echo $* | sed s/$suffix//g | print_3_columns
2988     exit 0
2989 }
2990
2991 rand_list(){
2992     IFS=', '
2993     set -- $*
2994     unset IFS
2995     for thing; do
2996         comp=${thing%:*}
2997         prob=${thing#$comp}
2998         prob=${prob#:}
2999         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3000         echo "prob ${prob:-0.5}"
3001         printf '%s\n' $comp
3002     done
3003 }
3004
3005 do_random(){
3006     action=$1
3007     shift
3008     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3009     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3010 }
3011
3012 for opt do
3013     optval="${opt#*=}"
3014     case "$opt" in
3015         --extra-ldflags=*)
3016             add_ldflags $optval
3017         ;;
3018         --extra-ldexeflags=*)
3019             add_ldexeflags $optval
3020         ;;
3021         --extra-ldlibflags=*)
3022             add_ldlibflags $optval
3023         ;;
3024         --extra-libs=*)
3025             add_extralibs $optval
3026         ;;
3027         --disable-devices)
3028             disable $INDEV_LIST $OUTDEV_LIST
3029         ;;
3030         --enable-debug=*)
3031             debuglevel="$optval"
3032         ;;
3033         --disable-programs)
3034             disable $PROGRAM_LIST
3035         ;;
3036         --disable-everything)
3037             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3038         ;;
3039         --disable-all)
3040             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3041             disable $LIBRARY_LIST $PROGRAM_LIST doc
3042         ;;
3043         --enable-random|--disable-random)
3044             action=${opt%%-random}
3045             do_random ${action#--} $COMPONENT_LIST
3046         ;;
3047         --enable-random=*|--disable-random=*)
3048             action=${opt%%-random=*}
3049             do_random ${action#--} $optval
3050         ;;
3051         --enable-*=*|--disable-*=*)
3052             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3053             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3054             eval list=\$$(toupper $thing)_LIST
3055             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3056             list=$(filter "$name" $list)
3057             [ "$list" = "" ] && warn "Option $opt did not match anything"
3058             $action $list
3059         ;;
3060         --enable-?*|--disable-?*)
3061             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3062             if is_in $option $COMPONENT_LIST; then
3063                 test $action = disable && action=unset
3064                 eval $action \$$(toupper ${option%s})_LIST
3065             elif is_in $option $CMDLINE_SELECT; then
3066                 $action $option
3067             else
3068                 die_unknown $opt
3069             fi
3070         ;;
3071         --list-*)
3072             NAME="${opt#--list-}"
3073             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3074             NAME=${NAME%s}
3075             eval show_list $NAME \$$(toupper $NAME)_LIST
3076         ;;
3077         --help|-h) show_help
3078         ;;
3079         --fatal-warnings) enable fatal_warnings
3080         ;;
3081         *)
3082             optname="${opt%%=*}"
3083             optname="${optname#--}"
3084             optname=$(echo "$optname" | sed 's/-/_/g')
3085             if is_in $optname $CMDLINE_SET; then
3086                 eval $optname='$optval'
3087             elif is_in $optname $CMDLINE_APPEND; then
3088                 append $optname "$optval"
3089             else
3090                 die_unknown $opt
3091             fi
3092         ;;
3093     esac
3094 done
3095
3096 for e in $env; do
3097     eval "export $e"
3098 done
3099
3100 disabled logging && logfile=/dev/null
3101
3102 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3103 set >> $logfile
3104
3105 test -n "$valgrind" && toolchain="valgrind-memcheck"
3106
3107 case "$toolchain" in
3108     clang-asan)
3109         cc_default="clang"
3110         add_cflags  -fsanitize=address
3111         add_ldflags -fsanitize=address
3112     ;;
3113     clang-tsan)
3114         cc_default="clang"
3115         add_cflags  -fsanitize=thread -pie
3116         add_ldflags -fsanitize=thread -pie
3117     ;;
3118     clang-usan)
3119         cc_default="clang"
3120         add_cflags  -fsanitize=undefined
3121         add_ldflags -fsanitize=undefined
3122     ;;
3123     gcc-asan)
3124         cc_default="gcc"
3125         add_cflags  -fsanitize=address
3126         add_ldflags -fsanitize=address
3127     ;;
3128     gcc-tsan)
3129         cc_default="gcc"
3130         add_cflags  -fsanitize=thread -pie -fPIC
3131         add_ldflags -fsanitize=thread -pie -fPIC
3132     ;;
3133     gcc-usan)
3134         cc_default="gcc"
3135         add_cflags  -fsanitize=undefined
3136         add_ldflags -fsanitize=undefined
3137     ;;
3138     valgrind-massif)
3139         target_exec_default=${valgrind:-"valgrind"}
3140         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"
3141     ;;
3142     valgrind-memcheck)
3143         target_exec_default=${valgrind:-"valgrind"}
3144         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3145     ;;
3146     msvc)
3147         # Check whether the current MSVC version needs the C99 converter.
3148         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3149         # support enough of C99 to build ffmpeg. Default to the new
3150         # behaviour if the regexp was unable to match anything, since this
3151         # successfully parses the version number of existing supported
3152         # versions that require the converter (MSVC 2010 and 2012).
3153         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3154         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3155             cc_default="cl"
3156         else
3157             cc_default="c99wrap cl"
3158         fi
3159         ld_default="link"
3160         nm_default="dumpbin -symbols"
3161         ar_default="lib"
3162         target_os_default="win32"
3163         # Use a relative path for TMPDIR. This makes sure all the
3164         # ffconf temp files are written with a relative path, avoiding
3165         # issues with msys/win32 path conversion for MSVC parameters
3166         # such as -Fo<file> or -out:<file>.
3167         TMPDIR=.
3168     ;;
3169     icl)
3170         cc_default="icl"
3171         ld_default="xilink"
3172         nm_default="dumpbin -symbols"
3173         ar_default="xilib"
3174         target_os_default="win32"
3175         TMPDIR=.
3176     ;;
3177     gcov)
3178         add_cflags  -fprofile-arcs -ftest-coverage
3179         add_ldflags -fprofile-arcs -ftest-coverage
3180     ;;
3181     hardened)
3182         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3183         add_cflags   -fno-strict-overflow -fstack-protector-all
3184         add_ldflags  -Wl,-z,relro -Wl,-z,now
3185     ;;
3186     ?*)
3187         die "Unknown toolchain $toolchain"
3188     ;;
3189 esac
3190
3191 test -n "$cross_prefix" && enable cross_compile
3192
3193 if enabled cross_compile; then
3194     test -n "$arch" && test -n "$target_os" ||
3195         die "Must specify target arch and OS when cross-compiling"
3196 fi
3197
3198 ar_default="${cross_prefix}${ar_default}"
3199 cc_default="${cross_prefix}${cc_default}"
3200 cxx_default="${cross_prefix}${cxx_default}"
3201 nm_default="${cross_prefix}${nm_default}"
3202 pkg_config_default="${cross_prefix}${pkg_config_default}"
3203 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3204     ranlib_default="${cross_prefix}${ranlib_default} -D"
3205 else
3206     ranlib_default="${cross_prefix}${ranlib_default}"
3207 fi
3208 strip_default="${cross_prefix}${strip_default}"
3209 windres_default="${cross_prefix}${windres_default}"
3210
3211 sysinclude_default="${sysroot}/usr/include"
3212
3213 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3214     target_exec target_os yasmexe
3215 enabled cross_compile || host_cc_default=$cc
3216 set_default host_cc
3217
3218 pkg_config_fail_message=""
3219 if ! $pkg_config --version >/dev/null 2>&1; then
3220     warn "$pkg_config not found, library detection may fail."
3221     pkg_config=false
3222 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3223     pkg_config_fail_message="
3224 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3225 fi
3226
3227 if test $doxygen != $doxygen_default && \
3228   ! $doxygen --version >/dev/null 2>&1; then
3229     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3230 fi
3231
3232 exesuf() {
3233     case $1 in
3234         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3235     esac
3236 }
3237
3238 EXESUF=$(exesuf $target_os)
3239 HOSTEXESUF=$(exesuf $host_os)
3240
3241 # set temporary file name
3242 : ${TMPDIR:=$TEMPDIR}
3243 : ${TMPDIR:=$TMP}
3244 : ${TMPDIR:=/tmp}
3245
3246 if [ -n "$tempprefix" ] ; then
3247     mktemp(){
3248         echo $tempprefix.${HOSTNAME}.${UID}
3249     }
3250 elif ! check_cmd mktemp -u XXXXXX; then
3251     # simple replacement for missing mktemp
3252     # NOT SAFE FOR GENERAL USE
3253     mktemp(){
3254         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3255     }
3256 fi
3257
3258 tmpfile(){
3259     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3260         (set -C; exec > $tmp) 2>/dev/null ||
3261         die "Unable to create temporary file in $TMPDIR."
3262     append TMPFILES $tmp
3263     eval $1=$tmp
3264 }
3265
3266 trap 'rm -f -- $TMPFILES' EXIT
3267
3268 tmpfile TMPASM .asm
3269 tmpfile TMPC   .c
3270 tmpfile TMPCPP .cpp
3271 tmpfile TMPE   $EXESUF
3272 tmpfile TMPH   .h
3273 tmpfile TMPM   .m
3274 tmpfile TMPO   .o
3275 tmpfile TMPS   .S
3276 tmpfile TMPSH  .sh
3277 tmpfile TMPV   .ver
3278
3279 unset -f mktemp
3280
3281 chmod +x $TMPE
3282
3283 # make sure we can execute files in $TMPDIR
3284 cat > $TMPSH 2>> $logfile <<EOF
3285 #! /bin/sh
3286 EOF
3287 chmod +x $TMPSH >> $logfile 2>&1
3288 if ! $TMPSH >> $logfile 2>&1; then
3289     cat <<EOF
3290 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3291 variable to another directory and make sure that it is not mounted noexec.
3292 EOF
3293     die "Sanity test failed."
3294 fi
3295
3296 armasm_flags(){
3297     for flag; do
3298         case $flag in
3299             # Filter out MSVC cl.exe options from cflags that shouldn't
3300             # be passed to gas-preprocessor
3301             -M[TD]*)                                            ;;
3302             *)                  echo $flag                      ;;
3303         esac
3304    done
3305 }
3306
3307 ccc_flags(){
3308     for flag; do
3309         case $flag in
3310             -std=c99)           echo -c99                       ;;
3311             -mcpu=*)            echo -arch ${flag#*=}           ;;
3312             -mieee)             echo -ieee                      ;;
3313             -O*|-fast)          echo $flag                      ;;
3314             -fno-math-errno)    echo -assume nomath_errno       ;;
3315             -g)                 echo -g3                        ;;
3316             -Wall)              echo -msg_enable level2         ;;
3317             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3318             -Wl,*)              echo $flag                      ;;
3319             -f*|-W*)                                            ;;
3320             *)                  echo $flag                      ;;
3321         esac
3322    done
3323 }
3324
3325 cparser_flags(){
3326     for flag; do
3327         case $flag in
3328             -Wno-switch)             echo -Wno-switch-enum ;;
3329             -Wno-format-zero-length) ;;
3330             -Wdisabled-optimization) ;;
3331             -Wno-pointer-sign)       echo -Wno-other ;;
3332             *)                       echo $flag ;;
3333         esac
3334     done
3335 }
3336
3337 msvc_common_flags(){
3338     for flag; do
3339         case $flag in
3340             # In addition to specifying certain flags under the compiler
3341             # specific filters, they must be specified here as well or else the
3342             # generic catch all at the bottom will print the original flag.
3343             -Wall)                ;;
3344             -std=c99)             ;;
3345             # Common flags
3346             -fomit-frame-pointer) ;;
3347             -g)                   echo -Z7 ;;
3348             -fno-math-errno)      ;;
3349             -fno-common)          ;;
3350             -fno-signed-zeros)    ;;
3351             -fPIC)                ;;
3352             -mthumb)              ;;
3353             -march=*)             ;;
3354             -lz)                  echo zlib.lib ;;
3355             -lavifil32)           echo vfw32.lib ;;
3356             -lavicap32)           echo vfw32.lib user32.lib ;;
3357             -l*)                  echo ${flag#-l}.lib ;;
3358             -L*)                  echo -libpath:${flag#-L} ;;
3359             *)                    echo $flag ;;
3360         esac
3361     done
3362 }
3363
3364 msvc_flags(){
3365     msvc_common_flags "$@"
3366     for flag; do
3367         case $flag in
3368             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3369                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3370                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3371                                        -wd4307 \
3372                                        -wd4273 -wd4554 -wd4701 ;;
3373         esac
3374     done
3375 }
3376
3377 icl_flags(){
3378     msvc_common_flags "$@"
3379     for flag; do
3380         case $flag in
3381             # Despite what Intel's documentation says -Wall, which is supported
3382             # on Windows, does enable remarks so disable them here.
3383             -Wall)                echo $flag -Qdiag-disable:remark ;;
3384             -std=c99)             echo -Qstd=c99 ;;
3385             -flto)                echo -ipo ;;
3386         esac
3387     done
3388 }
3389
3390 icc_flags(){
3391     for flag; do
3392         case $flag in
3393             -flto)                echo -ipo ;;
3394             *)                    echo $flag ;;
3395         esac
3396     done
3397 }
3398
3399 pgi_flags(){
3400     for flag; do
3401         case $flag in
3402             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3403             -fomit-frame-pointer) echo -Mnoframe ;;
3404             -g)                   echo -gopt ;;
3405             *)                    echo $flag ;;
3406         esac
3407     done
3408 }
3409
3410 suncc_flags(){
3411     for flag; do
3412         case $flag in
3413             -march=*|-mcpu=*)
3414                 case "${flag#*=}" in
3415                     native)                   echo -xtarget=native       ;;
3416                     v9|niagara)               echo -xarch=sparc          ;;
3417                     ultrasparc)               echo -xarch=sparcvis       ;;
3418                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3419                     i586|pentium)             echo -xchip=pentium        ;;
3420                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3421                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3422                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3423                     pentium4*)          echo -xtarget=pentium4           ;;
3424                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3425                     *-sse3)             echo -xarch=sse3                 ;;
3426                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3427                     bonnell)                   echo -xarch=ssse3         ;;
3428                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3429                     westmere)                  echo -xtarget=westmere    ;;
3430                     silvermont)                echo -xarch=sse4_2        ;;
3431                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3432                     core-avx*|ivybridge|haswell|broadwell)
3433                                                echo -xarch=avx           ;;
3434                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3435                     btver1)                    echo -xarch=amdsse4a      ;;
3436                     btver2|bdver*)             echo -xarch=avx           ;;
3437                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3438                     k8|opteron|athlon64|athlon-fx)
3439                                                echo -xarch=sse2a         ;;
3440                     athlon*)                   echo -xarch=pentium_proa  ;;
3441                 esac
3442                 ;;
3443             -std=c99)             echo -xc99              ;;
3444             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3445             -fPIC)                echo -KPIC -xcode=pic32 ;;
3446             -W*,*)                echo $flag              ;;
3447             -f*-*|-W*|-mimpure-text)                      ;;
3448             -shared)              echo -G                 ;;
3449             *)                    echo $flag              ;;
3450         esac
3451     done
3452 }
3453
3454 tms470_flags(){
3455     for flag; do
3456         case $flag in
3457             -march=*|-mcpu=*)
3458                 case "${flag#*=}" in
3459                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3460                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3461                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3462                     armv6*|arm11*)          echo -mv=6   ;;
3463                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3464                                             echo -mv=5e  ;;
3465                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3466                 esac
3467                 ;;
3468             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3469             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3470             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3471             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3472             -msoft-float)   echo --float_support=vfplib       ;;
3473             -O[0-3]|-mf=*)  echo $flag                        ;;
3474             -g)             echo -g -mn                       ;;
3475             -pds=*)         echo $flag                        ;;
3476             -D*|-I*)        echo $flag                        ;;
3477             --gcc|--abi=*)  echo $flag                        ;;
3478             -me)            echo $flag                        ;;
3479         esac
3480     done
3481 }
3482
3483 probe_cc(){
3484     pfx=$1
3485     _cc=$2
3486
3487     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3488     unset _ld_o _ldflags _ld_lib _ld_path
3489     unset _depflags _DEPCMD _DEPFLAGS
3490     _flags_filter=echo
3491
3492     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3493         true # no-op to avoid reading stdin in following checks
3494     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3495         _type=llvm_gcc
3496         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3497         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3498         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3499         _cflags_speed='-O3'
3500         _cflags_size='-Os'
3501     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3502         _type=gcc
3503         gcc_version=$($_cc --version | head -n1)
3504         gcc_basever=$($_cc -dumpversion)
3505         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3506         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3507         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3508         if ! $_cc -dumpversion | grep -q '^2\.'; then
3509             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3510         fi
3511         _cflags_speed='-O3'
3512         _cflags_size='-Os'
3513     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3514         _type=icc
3515         _ident=$($_cc --version | head -n1)
3516         _depflags='-MMD'
3517         _cflags_speed='-O3'
3518         _cflags_size='-Os'
3519         _cflags_noopt='-O1'
3520         _flags_filter=icc_flags
3521     elif $_cc -v 2>&1 | grep -q xlc; then
3522         _type=xlc
3523         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3524         _cflags_speed='-O5'
3525         _cflags_size='-O5 -qcompact'
3526     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3527         _type=ccc
3528         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3529         _DEPFLAGS='-M'
3530         _cflags_speed='-fast'
3531         _cflags_size='-O1'
3532         _flags_filter=ccc_flags
3533     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3534         test -d "$sysroot" || die "No valid sysroot specified."
3535         _type=armcc
3536         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3537         armcc_conf="$PWD/armcc.conf"
3538         $_cc --arm_linux_configure                 \
3539              --arm_linux_config_file="$armcc_conf" \
3540              --configure_sysroot="$sysroot"        \
3541              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3542              die "Error creating armcc configuration file."
3543         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3544         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3545         as_default="${cross_prefix}gcc"
3546         _depflags='-MMD'
3547         _cflags_speed='-O3'
3548         _cflags_size='-Os'
3549     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3550         _type=tms470
3551         _ident=$($_cc -version | head -n1 | tr -s ' ')
3552         _flags='--gcc --abi=eabi -me'
3553         _cc_e='-ppl -fe=$@'
3554         _cc_o='-fe=$@'
3555         _depflags='-ppa -ppd=$(@:.o=.d)'
3556         _cflags_speed='-O3 -mf=5'
3557         _cflags_size='-O3 -mf=2'
3558         _flags_filter=tms470_flags
3559     elif $_cc -v 2>&1 | grep -q clang; then
3560         _type=clang
3561         _ident=$($_cc --version | head -n1)
3562         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3563         _cflags_speed='-O3'
3564         _cflags_size='-Os'
3565     elif $_cc -V 2>&1 | grep -q Sun; then
3566         _type=suncc
3567         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3568         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3569         _DEPFLAGS='-xM1 -xc99'
3570         _ldflags='-std=c99'
3571         _cflags_speed='-O5'
3572         _cflags_size='-O5 -xspace'
3573         _flags_filter=suncc_flags
3574     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3575         _type=pathscale
3576         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3577         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3578         _cflags_speed='-O2'
3579         _cflags_size='-Os'
3580         _flags_filter='filter_out -Wdisabled-optimization'
3581     elif $_cc -v 2>&1 | grep -q Open64; then
3582         _type=open64
3583         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3584         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3585         _cflags_speed='-O2'
3586         _cflags_size='-Os'
3587         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3588     elif $_cc -V 2>&1 | grep -q Portland; then
3589         _type=pgi
3590         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3591         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3592         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3593         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3594         _cflags_noopt="-O"
3595         _flags_filter=pgi_flags
3596     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3597         _type=armasm
3598         _ident=$($_cc | head -n1)
3599         # 4509: "This form of conditional instruction is deprecated"
3600         _flags="-nologo -ignore 4509"
3601         _flags_filter=armasm_flags
3602     elif $_cc 2>&1 | grep -q Intel; then
3603         _type=icl
3604         _ident=$($_cc 2>&1 | head -n1)
3605         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3606         # Not only is O3 broken on 13.x+ but it is slower on all previous
3607         # versions (tested) as well.
3608         _cflags_speed="-O2"
3609         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3610         if $_cc 2>&1 | grep -q Linker; then
3611             _ld_o='-out:$@'
3612         else
3613             _ld_o='-Fe$@'
3614         fi
3615         _cc_o='-Fo$@'
3616         _cc_e='-P'
3617         _flags_filter=icl_flags
3618         _ld_lib='lib%.a'
3619         _ld_path='-libpath:'
3620         # -Qdiag-error to make icl error when seeing certain unknown arguments
3621         _flags='-nologo -Qdiag-error:4044,10157'
3622         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3623         # with MSVC which enables it by default.
3624         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3625         disable stripping
3626     elif $_cc 2>&1 | grep -q Microsoft; then
3627         _type=msvc
3628         _ident=$($_cc 2>&1 | head -n1)
3629         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3630         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3631         _cflags_speed="-O2"
3632         _cflags_size="-O1"
3633         if $_cc 2>&1 | grep -q Linker; then
3634             _ld_o='-out:$@'
3635         else
3636             _ld_o='-Fe$@'
3637         fi
3638         _cc_o='-Fo$@'
3639         _cc_e='-P -Fi$@'
3640         _flags_filter=msvc_flags
3641         _ld_lib='lib%.a'
3642         _ld_path='-libpath:'
3643         _flags='-nologo'
3644         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3645         disable stripping
3646     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3647         _type=cparser
3648         _ident=$($_cc --version | head -n1)
3649         _depflags='-MMD'
3650         _cflags_speed='-O4'
3651         _cflags_size='-O2'
3652         _flags_filter=cparser_flags
3653     fi
3654
3655     eval ${pfx}_type=\$_type
3656     eval ${pfx}_ident=\$_ident
3657 }
3658
3659 set_ccvars(){
3660     eval ${1}_C=\${_cc_c-\${${1}_C}}
3661     eval ${1}_E=\${_cc_e-\${${1}_E}}
3662     eval ${1}_O=\${_cc_o-\${${1}_O}}
3663
3664     if [ -n "$_depflags" ]; then
3665         eval ${1}_DEPFLAGS=\$_depflags
3666     else
3667         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3668         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3669         eval DEP${1}FLAGS=\$_flags
3670     fi
3671 }
3672
3673 probe_cc cc "$cc"
3674 cflags_filter=$_flags_filter
3675 cflags_speed=$_cflags_speed
3676 cflags_size=$_cflags_size
3677 cflags_noopt=$_cflags_noopt
3678 add_cflags $_flags $_cflags
3679 cc_ldflags=$_ldflags
3680 set_ccvars CC
3681
3682 probe_cc hostcc "$host_cc"
3683 host_cflags_filter=$_flags_filter
3684 add_host_cflags  $_flags $_cflags
3685 set_ccvars HOSTCC
3686
3687 test -n "$cc_type" && enable $cc_type ||
3688     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3689
3690 : ${as_default:=$cc}
3691 : ${dep_cc_default:=$cc}
3692 : ${ld_default:=$cc}
3693 : ${host_ld_default:=$host_cc}
3694 set_default ar as dep_cc ld host_ld windres
3695
3696 probe_cc as "$as"
3697 asflags_filter=$_flags_filter
3698 add_asflags $_flags $_cflags
3699 set_ccvars AS
3700
3701 probe_cc ld "$ld"
3702 ldflags_filter=$_flags_filter
3703 add_ldflags $_flags $_ldflags
3704 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3705 LD_O=${_ld_o-$LD_O}
3706 LD_LIB=${_ld_lib-$LD_LIB}
3707 LD_PATH=${_ld_path-$LD_PATH}
3708
3709 probe_cc hostld "$host_ld"
3710 host_ldflags_filter=$_flags_filter
3711 add_host_ldflags $_flags $_ldflags
3712 HOSTLD_O=${_ld_o-$HOSTLD_O}
3713
3714 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3715     probe_cc depcc "$dep_cc"
3716     CCDEP=${_DEPCMD:-$DEPCMD}
3717     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3718     DEPCCFLAGS=$_flags
3719 fi
3720
3721 if $ar 2>&1 | grep -q Microsoft; then
3722     arflags="-nologo"
3723     ar_o='-out:$@'
3724 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3725     arflags="rq"
3726     ar_o='$@'
3727 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3728     arflags='-Xany -r -c'
3729     ar_o='$@'
3730 elif $ar 2>&1 | grep -q "\[D\] "; then
3731     arflags="rcD"
3732     ar_o='$@'
3733 else
3734     arflags="rc"
3735     ar_o='$@'
3736 fi
3737
3738 add_cflags $extra_cflags
3739 add_cxxflags $extra_cxxflags
3740 add_asflags $extra_cflags
3741
3742 if test -n "$sysroot"; then
3743     case "$cc_type" in
3744         gcc|llvm_gcc|clang)
3745             add_cppflags --sysroot="$sysroot"
3746             add_ldflags --sysroot="$sysroot"
3747 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3748             add_cppflags -isysroot "$sysroot"
3749             add_ldflags -isysroot "$sysroot"
3750         ;;
3751         tms470)
3752             add_cppflags -I"$sysinclude"
3753             add_ldflags  --sysroot="$sysroot"
3754         ;;
3755     esac
3756 fi
3757
3758 if test "$cpu" = host; then
3759     enabled cross_compile &&
3760         die "--cpu=host makes no sense when cross-compiling."
3761
3762     case "$cc_type" in
3763         gcc|llvm_gcc)
3764             check_native(){
3765                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3766                 sed -n "/cc1.*$1=/{
3767                             s/.*$1=\\([^ ]*\\).*/\\1/
3768                             p
3769                             q
3770                         }" $TMPE
3771             }
3772             cpu=$(check_native -march || check_native -mcpu)
3773         ;;
3774     esac
3775
3776     test "${cpu:-host}" = host &&
3777         die "--cpu=host not supported with compiler $cc"
3778 fi
3779
3780 # Deal with common $arch aliases
3781 case "$arch" in
3782     aarch64|arm64)
3783         arch="aarch64"
3784     ;;
3785     arm*|iPad*|iPhone*)
3786         arch="arm"
3787     ;;
3788     mips*|IP*)
3789         arch="mips"
3790     ;;
3791     parisc*|hppa*)
3792         arch="parisc"
3793     ;;
3794     "Power Macintosh"|ppc*|powerpc*)
3795         arch="ppc"
3796     ;;
3797     s390|s390x)
3798         arch="s390"
3799     ;;
3800     sh4|sh)
3801         arch="sh4"
3802     ;;
3803     sun4u|sparc*)
3804         arch="sparc"
3805     ;;
3806     tilegx|tile-gx)
3807         arch="tilegx"
3808     ;;
3809     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3810         arch="x86"
3811     ;;
3812 esac
3813
3814 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3815 enable $arch
3816
3817 # Add processor-specific flags
3818 if enabled aarch64; then
3819
3820     case $cpu in
3821         armv*)
3822             cpuflags="-march=$cpu"
3823         ;;
3824         *)
3825             cpuflags="-mcpu=$cpu"
3826         ;;
3827     esac
3828
3829 elif enabled alpha; then
3830
3831     cpuflags="-mcpu=$cpu"
3832
3833 elif enabled arm; then
3834
3835     check_arm_arch() {
3836         check_cpp_condition stddef.h \
3837             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3838             $cpuflags
3839     }
3840
3841     probe_arm_arch() {
3842         if   check_arm_arch 4;        then echo armv4;
3843         elif check_arm_arch 4T;       then echo armv4t;
3844         elif check_arm_arch 5;        then echo armv5;
3845         elif check_arm_arch 5E;       then echo armv5e;
3846         elif check_arm_arch 5T;       then echo armv5t;
3847         elif check_arm_arch 5TE;      then echo armv5te;
3848         elif check_arm_arch 5TEJ;     then echo armv5te;
3849         elif check_arm_arch 6;        then echo armv6;
3850         elif check_arm_arch 6J;       then echo armv6j;
3851         elif check_arm_arch 6K;       then echo armv6k;
3852         elif check_arm_arch 6Z;       then echo armv6z;
3853         elif check_arm_arch 6ZK;      then echo armv6zk;
3854         elif check_arm_arch 6T2;      then echo armv6t2;
3855         elif check_arm_arch 7;        then echo armv7;
3856         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3857         elif check_arm_arch 7S;       then echo armv7-a;
3858         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3859         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3860         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3861         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3862         fi
3863     }
3864
3865     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3866
3867     case $cpu in
3868         armv*)
3869             cpuflags="-march=$cpu"
3870             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3871         ;;
3872         *)
3873             cpuflags="-mcpu=$cpu"
3874             case $cpu in
3875                 cortex-a*)                               subarch=armv7a  ;;
3876                 cortex-r*)                               subarch=armv7r  ;;
3877                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3878                 arm11*)                                  subarch=armv6   ;;
3879                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3880                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3881                 *)                             subarch=$(probe_arm_arch) ;;
3882             esac
3883         ;;
3884     esac
3885
3886     case "$subarch" in
3887         armv5t*)    enable fast_clz                ;;
3888         armv[6-8]*)
3889             enable fast_clz
3890             disabled fast_unaligned || enable fast_unaligned
3891             ;;
3892     esac
3893
3894 elif enabled avr32; then
3895
3896     case $cpu in
3897         ap7[02]0[0-2])
3898             subarch="avr32_ap"
3899             cpuflags="-mpart=$cpu"
3900         ;;
3901         ap)
3902             subarch="avr32_ap"
3903             cpuflags="-march=$cpu"
3904         ;;
3905         uc3[ab]*)
3906             subarch="avr32_uc"
3907             cpuflags="-mcpu=$cpu"
3908         ;;
3909         uc)
3910             subarch="avr32_uc"
3911             cpuflags="-march=$cpu"
3912         ;;
3913     esac
3914
3915 elif enabled bfin; then
3916
3917     cpuflags="-mcpu=$cpu"
3918
3919 elif enabled mips; then
3920
3921     cpuflags="-march=$cpu"
3922
3923     case $cpu in
3924         24kc)
3925             disable mips32r5
3926             disable mips64r6
3927             disable mipsfpu
3928             disable mipsdspr1
3929             disable mipsdspr2
3930             disable msa
3931         ;;
3932         24kf*)
3933             disable mips32r5
3934             disable mips64r6
3935             disable mipsdspr1
3936             disable mipsdspr2
3937             disable msa
3938         ;;
3939         24kec|34kc|1004kc)
3940             disable mips32r5
3941             disable mips64r6
3942             disable mipsfpu
3943             disable mipsdspr2
3944             disable msa
3945         ;;
3946         24kef*|34kf*|1004kf*)
3947             disable mips32r5
3948             disable mips64r6
3949             disable mipsdspr2
3950             disable msa
3951         ;;
3952         74kc)
3953             disable mips32r5
3954             disable mips64r6
3955             disable mipsfpu
3956             disable msa
3957         ;;
3958         74kf)
3959             disable mips32r5
3960             disable mips64r6
3961             disable msa
3962         ;;
3963         p5600)
3964             disable mips64r6
3965             disable mipsdspr1
3966             disable mipsdspr2
3967
3968             check_cflags "-mtune=p5600"
3969         ;;
3970         i6400)
3971             disable mips32r5
3972             disable mipsdspr1
3973             disable mipsdspr2
3974             disable mipsfpu
3975
3976             check_cflags "-mtune=i6400 -mabi=64"
3977             check_ldflags "-mabi=64"
3978         ;;
3979         loongson*)
3980             disable mipsfpu
3981             disable mips32r2
3982             disable mips32r5
3983             disable mips64r6
3984             disable mipsdspr1
3985             disable mipsdspr2
3986             disable msa
3987             enable local_aligned_8 local_aligned_16 local_aligned_32
3988             enable simd_align_16
3989             enable fast_64bit
3990             enable fast_clz
3991             enable fast_cmov
3992             enable fast_unaligned
3993             disable aligned_stack
3994             case $cpu in
3995                 loongson3*)
3996                     cpuflags="-march=loongson3a -mhard-float"
3997                 ;;
3998                 loongson2e)
3999                     cpuflags="-march=loongson2e -mhard-float"
4000                 ;;
4001                 loongson2f)
4002                     cpuflags="-march=loongson2f -mhard-float"
4003                 ;;
4004             esac
4005         ;;
4006         generic)
4007             disable mips32r5
4008             disable mips64r6
4009             disable msa
4010         ;;
4011     esac
4012
4013 elif enabled ppc; then
4014
4015     disable ldbrx
4016
4017     case $(tolower $cpu) in
4018         601|ppc601|powerpc601)
4019             cpuflags="-mcpu=601"
4020             disable altivec
4021         ;;
4022         603*|ppc603*|powerpc603*)
4023             cpuflags="-mcpu=603"
4024             disable altivec
4025         ;;
4026         604*|ppc604*|powerpc604*)
4027             cpuflags="-mcpu=604"
4028             disable altivec
4029         ;;
4030         g3|75*|ppc75*|powerpc75*)
4031             cpuflags="-mcpu=750"
4032             disable altivec
4033         ;;
4034         g4|745*|ppc745*|powerpc745*)
4035             cpuflags="-mcpu=7450"
4036             disable vsx
4037         ;;
4038         74*|ppc74*|powerpc74*)
4039             cpuflags="-mcpu=7400"
4040             disable vsx
4041         ;;
4042         g5|970|ppc970|powerpc970)
4043             cpuflags="-mcpu=970"
4044             disable vsx
4045         ;;
4046         power[3-6]*)
4047             cpuflags="-mcpu=$cpu"
4048             disable vsx
4049         ;;
4050         power[7-8]*)
4051             cpuflags="-mcpu=$cpu"
4052         ;;
4053         cell)
4054             cpuflags="-mcpu=cell"
4055             enable ldbrx
4056             disable vsx
4057         ;;
4058         e500mc)
4059             cpuflags="-mcpu=e500mc"
4060             disable altivec
4061         ;;
4062         e500v2)
4063             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4064             disable altivec
4065             disable dcbzl