avcodec: Add QSV VC-1 video decoder.
[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-libkvazaar      enable HEVC encoding via libkvazaar [no]
226   --enable-libmfx          enable HW acceleration through libmfx
227   --enable-libmodplug      enable ModPlug via libmodplug [no]
228   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
229   --enable-libnut          enable NUT (de)muxing via libnut,
230                            native (de)muxer exists [no]
231   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
232   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
233   --enable-libopencv       enable video filtering via libopencv [no]
234   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
235   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
236   --enable-libopus         enable Opus de/encoding via libopus [no]
237   --enable-libpulse        enable Pulseaudio input via libpulse [no]
238   --enable-libquvi         enable quvi input via libquvi [no]
239   --enable-librtmp         enable RTMP[E] support via librtmp [no]
240   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
241   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
242   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
243   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
244   --enable-libsoxr         enable Include libsoxr resampling [no]
245   --enable-libspeex        enable Speex de/encoding via libspeex [no]
246   --enable-libssh          enable SFTP protocol via libssh [no]
247   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
248   --enable-libtheora       enable Theora encoding via libtheora [no]
249   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
250   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
251   --enable-libv4l2         enable libv4l2/v4l-utils [no]
252   --enable-libvidstab      enable video stabilization using vid.stab [no]
253   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
254   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
255   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
256                            native implementation exists [no]
257   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
258   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
259   --enable-libwebp         enable WebP encoding via libwebp [no]
260   --enable-libx264         enable H.264 encoding via x264 [no]
261   --enable-libx265         enable HEVC encoding via x265 [no]
262   --enable-libxavs         enable AVS encoding via xavs [no]
263   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
264   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
265   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
266   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
267   --enable-libxvid         enable Xvid encoding via xvidcore,
268                            native MPEG-4/Xvid encoder exists [no]
269   --enable-libzmq          enable message passing via libzmq [no]
270   --enable-libzvbi         enable teletext support via libzvbi [no]
271   --disable-lzma           disable lzma [autodetect]
272   --enable-decklink        enable Blackmagick DeckLink I/O support [no]
273   --enable-mmal            enable decoding via MMAL [no]
274   --enable-nvenc           enable NVIDIA NVENC support [no]
275   --enable-openal          enable OpenAL 1.1 capture support [no]
276   --enable-opencl          enable OpenCL code
277   --enable-opengl          enable OpenGL rendering [no]
278   --enable-openssl         enable openssl, needed for https support
279                            if gnutls is not used [no]
280   --disable-sdl            disable sdl [autodetect]
281   --disable-securetransport disable Secure Transport, needed for TLS support
282                            on OSX if openssl and gnutls are not used [autodetect]
283   --enable-x11grab         enable X11 grabbing (legacy) [no]
284   --disable-xlib           disable xlib [autodetect]
285   --disable-zlib           disable zlib [autodetect]
286
287 Toolchain options:
288   --arch=ARCH              select architecture [$arch]
289   --cpu=CPU                select the minimum required CPU (affects
290                            instruction selection, may crash on older CPUs)
291   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
292   --progs-suffix=SUFFIX    program name suffix []
293   --enable-cross-compile   assume a cross-compiler is used
294   --sysroot=PATH           root of cross-build tree
295   --sysinclude=PATH        location of cross-build system headers
296   --target-os=OS           compiler targets OS [$target_os]
297   --target-exec=CMD        command to run executables on target
298   --target-path=DIR        path to view of build directory on target
299   --target-samples=DIR     path to samples directory on target
300   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
301   --toolchain=NAME         set tool defaults according to NAME
302   --nm=NM                  use nm tool NM [$nm_default]
303   --ar=AR                  use archive tool AR [$ar_default]
304   --as=AS                  use assembler AS [$as_default]
305   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
306   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
307   --cc=CC                  use C compiler CC [$cc_default]
308   --cxx=CXX                use C compiler CXX [$cxx_default]
309   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
310   --ld=LD                  use linker LD [$ld_default]
311   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
312   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
313   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
314   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
315   --host-cc=HOSTCC         use host C compiler HOSTCC
316   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
317   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
318   --host-ld=HOSTLD         use host linker HOSTLD
319   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
320   --host-libs=HLIBS        use libs HLIBS when linking for host
321   --host-os=OS             compiler host OS [$target_os]
322   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
323   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
324   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
325   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
326   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
327   --extra-libs=ELIBS       add ELIBS [$ELIBS]
328   --extra-version=STRING   version string suffix []
329   --optflags=OPTFLAGS      override optimization-related compiler flags
330   --build-suffix=SUFFIX    library name suffix []
331   --enable-pic             build position-independent code
332   --enable-thumb           compile for Thumb instruction set
333   --enable-lto             use link-time optimization
334   --env="ENV=override"     override the environment variables
335
336 Advanced options (experts only):
337   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
338   --disable-symver         disable symbol versioning
339   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
340   --disable-safe-bitstream-reader
341                            disable buffer boundary checking in bitreaders
342                            (faster, but may crash)
343   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
344   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
345
346 Optimization options (experts only):
347   --disable-asm            disable all assembly optimizations
348   --disable-altivec        disable AltiVec optimizations
349   --disable-vsx            disable VSX optimizations
350   --disable-power8         disable POWER8 optimizations
351   --disable-amd3dnow       disable 3DNow! optimizations
352   --disable-amd3dnowext    disable 3DNow! extended optimizations
353   --disable-mmx            disable MMX optimizations
354   --disable-mmxext         disable MMXEXT optimizations
355   --disable-sse            disable SSE optimizations
356   --disable-sse2           disable SSE2 optimizations
357   --disable-sse3           disable SSE3 optimizations
358   --disable-ssse3          disable SSSE3 optimizations
359   --disable-sse4           disable SSE4 optimizations
360   --disable-sse42          disable SSE4.2 optimizations
361   --disable-avx            disable AVX optimizations
362   --disable-xop            disable XOP optimizations
363   --disable-fma3           disable FMA3 optimizations
364   --disable-fma4           disable FMA4 optimizations
365   --disable-avx2           disable AVX2 optimizations
366   --disable-armv5te        disable armv5te optimizations
367   --disable-armv6          disable armv6 optimizations
368   --disable-armv6t2        disable armv6t2 optimizations
369   --disable-vfp            disable VFP optimizations
370   --disable-neon           disable NEON optimizations
371   --disable-inline-asm     disable use of inline assembly
372   --disable-yasm           disable use of nasm/yasm assembly
373   --disable-mips32r5       disable MIPS32R5 optimizations
374   --disable-mips64r6       disable MIPS64R6 optimizations
375   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
376   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
377   --disable-msa            disable MSA optimizations
378   --disable-mipsfpu        disable floating point MIPS optimizations
379   --disable-mmi            disable Loongson SIMD optimizations
380   --disable-fast-unaligned consider unaligned accesses slow
381
382 Developer options (useful when working on FFmpeg itself):
383   --disable-debug          disable debugging symbols
384   --enable-debug=LEVEL     set the debug level [$debuglevel]
385   --disable-optimizations  disable compiler optimizations
386   --enable-extra-warnings  enable more compiler warnings
387   --disable-stripping      disable stripping of executables and shared libraries
388   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
389                            2 causes a slowdown at runtime.
390   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
391   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
392                            leaks and errors, using the specified valgrind binary.
393                            Cannot be combined with --target-exec
394   --enable-ftrapv          Trap arithmetic overflows
395   --samples=PATH           location of test samples for FATE, if not set use
396                            \$FATE_SAMPLES at make invocation time.
397   --enable-neon-clobber-test check NEON registers for clobbering (should be
398                            used only for debugging purposes)
399   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
400                            should be used only for debugging purposes)
401   --enable-random          randomly enable/disable components
402   --disable-random
403   --enable-random=LIST     randomly enable/disable specific components or
404   --disable-random=LIST    component groups. LIST is a comma-separated list
405                            of NAME[:PROB] entries where NAME is a component
406                            (group) and PROB the probability associated with
407                            NAME (default 0.5).
408   --random-seed=VALUE      seed value for --enable/disable-random
409   --disable-valgrind-backtrace do not print a backtrace under Valgrind
410                            (only applies to --disable-optimizations builds)
411
412 NOTE: Object files are built at the place where configure is launched.
413 EOF
414   exit 0
415 }
416
417 quotes='""'
418
419 log(){
420     echo "$@" >> $logfile
421 }
422
423 log_file(){
424     log BEGIN $1
425     pr -n -t $1 >> $logfile
426     log END $1
427 }
428
429 echolog(){
430     log "$@"
431     echo "$@"
432 }
433
434 warn(){
435     log "WARNING: $*"
436     WARNINGS="${WARNINGS}WARNING: $*\n"
437 }
438
439 die(){
440     echolog "$@"
441     cat <<EOF
442
443 If you think configure made a mistake, make sure you are using the latest
444 version from Git.  If the latest version fails, report the problem to the
445 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
446 EOF
447     if disabled logging; then
448         cat <<EOF
449 Rerun configure with logging enabled (do not use --disable-logging), and
450 include the log this produces with your report.
451 EOF
452     else
453         cat <<EOF
454 Include the log file "$logfile" produced by configure as this will help
455 solve the problem.
456 EOF
457     fi
458     exit 1
459 }
460
461 # Avoid locale weirdness, besides we really just want to translate ASCII.
462 toupper(){
463     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
464 }
465
466 tolower(){
467     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
468 }
469
470 c_escape(){
471     echo "$*" | sed 's/["\\]/\\\0/g'
472 }
473
474 sh_quote(){
475     v=$(echo "$1" | sed "s/'/'\\\\''/g")
476     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
477     echo "$v"
478 }
479
480 cleanws(){
481     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
482 }
483
484 filter(){
485     pat=$1
486     shift
487     for v; do
488         eval "case $v in $pat) echo $v ;; esac"
489     done
490 }
491
492 filter_out(){
493     pat=$1
494     shift
495     for v; do
496         eval "case $v in $pat) ;; *) echo $v ;; esac"
497     done
498 }
499
500 map(){
501     m=$1
502     shift
503     for v; do eval $m; done
504 }
505
506 add_suffix(){
507     suffix=$1
508     shift
509     for v; do echo ${v}${suffix}; done
510 }
511
512 set_all(){
513     value=$1
514     shift
515     for var in $*; do
516         eval $var=$value
517     done
518 }
519
520 set_weak(){
521     value=$1
522     shift
523     for var; do
524         eval : \${$var:=$value}
525     done
526 }
527
528 sanitize_var_name(){
529     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
530 }
531
532 set_safe(){
533     var=$1
534     shift
535     eval $(sanitize_var_name "$var")='$*'
536 }
537
538 get_safe(){
539     eval echo \$$(sanitize_var_name "$1")
540 }
541
542 pushvar(){
543     for pvar in $*; do
544         eval level=\${${pvar}_level:=0}
545         eval ${pvar}_${level}="\$$pvar"
546         eval ${pvar}_level=$(($level+1))
547     done
548 }
549
550 popvar(){
551     for pvar in $*; do
552         eval level=\${${pvar}_level:-0}
553         test $level = 0 && continue
554         eval level=$(($level-1))
555         eval $pvar="\${${pvar}_${level}}"
556         eval ${pvar}_level=$level
557         eval unset ${pvar}_${level}
558     done
559 }
560
561 enable(){
562     set_all yes $*
563 }
564
565 disable(){
566     set_all no $*
567 }
568
569 enable_weak(){
570     set_weak yes $*
571 }
572
573 disable_weak(){
574     set_weak no $*
575 }
576
577 enable_safe(){
578     for var; do
579         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
580     done
581 }
582
583 disable_safe(){
584     for var; do
585         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
586     done
587 }
588
589 do_enable_deep(){
590     for var; do
591         enabled $var && continue
592         eval sel="\$${var}_select"
593         eval sgs="\$${var}_suggest"
594         pushvar var sgs
595         enable_deep $sel
596         popvar sgs
597         enable_deep_weak $sgs
598         popvar var
599     done
600 }
601
602 enable_deep(){
603     do_enable_deep $*
604     enable $*
605 }
606
607 enable_deep_weak(){
608     for var; do
609         disabled $var && continue
610         pushvar var
611         do_enable_deep $var
612         popvar var
613         enable_weak $var
614     done
615 }
616
617 enabled(){
618     test "${1#!}" = "$1" && op== || op=!=
619     eval test "x\$${1#!}" $op "xyes"
620 }
621
622 disabled(){
623     test "${1#!}" = "$1" && op== || op=!=
624     eval test "x\$${1#!}" $op "xno"
625 }
626
627 enabled_all(){
628     for opt; do
629         enabled $opt || return 1
630     done
631 }
632
633 disabled_all(){
634     for opt; do
635         disabled $opt || return 1
636     done
637 }
638
639 enabled_any(){
640     for opt; do
641         enabled $opt && return 0
642     done
643 }
644
645 disabled_any(){
646     for opt; do
647         disabled $opt && return 0
648     done
649     return 1
650 }
651
652 set_default(){
653     for opt; do
654         eval : \${$opt:=\$${opt}_default}
655     done
656 }
657
658 is_in(){
659     value=$1
660     shift
661     for var in $*; do
662         [ $var = $value ] && return 0
663     done
664     return 1
665 }
666
667 do_check_deps(){
668     for cfg; do
669         cfg="${cfg#!}"
670         enabled ${cfg}_checking && die "Circular dependency for $cfg."
671         disabled ${cfg}_checking && continue
672         enable ${cfg}_checking
673         append allopts $cfg
674
675         eval dep_all="\$${cfg}_deps"
676         eval dep_any="\$${cfg}_deps_any"
677         eval dep_sel="\$${cfg}_select"
678         eval dep_sgs="\$${cfg}_suggest"
679         eval dep_ifa="\$${cfg}_if"
680         eval dep_ifn="\$${cfg}_if_any"
681
682         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
683         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
684         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
685
686         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
687         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
688         enabled_all  $dep_all || disable $cfg
689         enabled_any  $dep_any || disable $cfg
690         disabled_any $dep_sel && disable $cfg
691
692         if enabled $cfg; then
693             enable_deep $dep_sel
694             enable_deep_weak $dep_sgs
695         fi
696
697         disable ${cfg}_checking
698     done
699 }
700
701 check_deps(){
702     unset allopts
703
704     do_check_deps "$@"
705
706     for cfg in $allopts; do
707         enabled $cfg || continue
708         eval dep_extralibs="\$${cfg}_extralibs"
709         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
710     done
711 }
712
713 print_config(){
714     pfx=$1
715     files=$2
716     shift 2
717     map 'eval echo "$v \${$v:-no}"' "$@" |
718     awk "BEGIN { split(\"$files\", files) }
719         {
720             c = \"$pfx\" toupper(\$1);
721             v = \$2;
722             sub(/yes/, 1, v);
723             sub(/no/,  0, v);
724             for (f in files) {
725                 file = files[f];
726                 if (file ~ /\\.h\$/) {
727                     printf(\"#define %s %d\\n\", c, v) >>file;
728                 } else if (file ~ /\\.asm\$/) {
729                     printf(\"%%define %s %d\\n\", c, v) >>file;
730                 } else if (file ~ /\\.mak\$/) {
731                     n = -v ? \"\" : \"!\";
732                     printf(\"%s%s=yes\\n\", n, c) >>file;
733                 } else if (file ~ /\\.texi\$/) {
734                     pre = -v ? \"\" : \"@c \";
735                     yesno = \$2;
736                     c2 = tolower(c);
737                     gsub(/_/, \"-\", c2);
738                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
739                 }
740             }
741         }"
742 }
743
744 print_enabled(){
745     suf=$1
746     shift
747     for v; do
748         enabled $v && printf "%s\n" ${v%$suf};
749     done
750 }
751
752 append(){
753     var=$1
754     shift
755     eval "$var=\"\$$var $*\""
756 }
757
758 prepend(){
759     var=$1
760     shift
761     eval "$var=\"$* \$$var\""
762 }
763
764 unique(){
765     var=$1
766     uniq_list=""
767     for tok in $(eval echo \$$var); do
768         uniq_list="$(filter_out $tok $uniq_list) $tok"
769     done
770     eval "$var=\"${uniq_list}\""
771 }
772
773 add_cppflags(){
774     append CPPFLAGS "$@"
775 }
776
777 add_cflags(){
778     append CFLAGS $($cflags_filter "$@")
779 }
780
781 add_cxxflags(){
782     append CXXFLAGS $($cflags_filter "$@")
783 }
784
785 add_asflags(){
786     append ASFLAGS $($asflags_filter "$@")
787 }
788
789 add_ldflags(){
790     append LDFLAGS $($ldflags_filter "$@")
791 }
792
793 add_ldexeflags(){
794     append LDEXEFLAGS $($ldflags_filter "$@")
795 }
796
797 add_ldlibflags(){
798     append LDLIBFLAGS $($ldflags_filter "$@")
799 }
800
801 add_stripflags(){
802     append ASMSTRIPFLAGS "$@"
803 }
804
805 add_extralibs(){
806     prepend extralibs $($ldflags_filter "$@")
807 }
808
809 add_host_cppflags(){
810     append host_cppflags "$@"
811 }
812
813 add_host_cflags(){
814     append host_cflags $($host_cflags_filter "$@")
815 }
816
817 add_host_ldflags(){
818     append host_ldflags $($host_ldflags_filter "$@")
819 }
820
821 add_compat(){
822     append compat_objs $1
823     shift
824     map 'add_cppflags -D$v' "$@"
825 }
826
827 check_cmd(){
828     log "$@"
829     "$@" >> $logfile 2>&1
830 }
831
832 check_stat(){
833     log check_stat "$@"
834     stat "$1" >> $logfile 2>&1
835 }
836
837 cc_o(){
838     eval printf '%s\\n' $CC_O
839 }
840
841 cc_e(){
842     eval printf '%s\\n' $CC_E
843 }
844
845 check_cc(){
846     log check_cc "$@"
847     cat > $TMPC
848     log_file $TMPC
849     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
850 }
851
852 check_cxx(){
853     log check_cxx "$@"
854     cat > $TMPCPP
855     log_file $TMPCPP
856     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
857 }
858
859 check_oc(){
860     log check_oc "$@"
861     cat > $TMPM
862     log_file $TMPM
863     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
864 }
865
866 check_cpp(){
867     log check_cpp "$@"
868     cat > $TMPC
869     log_file $TMPC
870     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
871 }
872
873 as_o(){
874     eval printf '%s\\n' $AS_O
875 }
876
877 check_as(){
878     log check_as "$@"
879     cat > $TMPS
880     log_file $TMPS
881     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
882 }
883
884 check_inline_asm(){
885     log check_inline_asm "$@"
886     name="$1"
887     code="$2"
888     shift 2
889     disable $name
890     check_cc "$@" <<EOF && enable $name
891 void foo(void){ __asm__ volatile($code); }
892 EOF
893 }
894
895 check_insn(){
896     log check_insn "$@"
897     check_inline_asm ${1}_inline "\"$2\""
898     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
899 }
900
901 check_yasm(){
902     log check_yasm "$@"
903     echo "$1" > $TMPS
904     log_file $TMPS
905     shift 1
906     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
907 }
908
909 ld_o(){
910     eval printf '%s\\n' $LD_O
911 }
912
913 check_ld(){
914     log check_ld "$@"
915     type=$1
916     shift 1
917     flags=$(filter_out '-l*|*.so' $@)
918     libs=$(filter '-l*|*.so' $@)
919     check_$type $($cflags_filter $flags) || return
920     flags=$($ldflags_filter $flags)
921     libs=$($ldflags_filter $libs)
922     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
923 }
924
925 print_include(){
926     hdr=$1
927     test "${hdr%.h}" = "${hdr}" &&
928         echo "#include $hdr"    ||
929         echo "#include <$hdr>"
930 }
931
932 check_code(){
933     log check_code "$@"
934     check=$1
935     headers=$2
936     code=$3
937     shift 3
938     {
939         for hdr in $headers; do
940             print_include $hdr
941         done
942         echo "int main(void) { $code; return 0; }"
943     } | check_$check "$@"
944 }
945
946 check_cppflags(){
947     log check_cppflags "$@"
948     check_cc "$@" <<EOF && append CPPFLAGS "$@"
949 int x;
950 EOF
951 }
952
953 test_cflags(){
954     log test_cflags "$@"
955     set -- $($cflags_filter "$@")
956     check_cc "$@" <<EOF
957 int x;
958 EOF
959 }
960
961 check_cflags(){
962     log check_cflags "$@"
963     test_cflags "$@" && add_cflags "$@"
964 }
965
966 check_cxxflags(){
967     log check_cxxflags "$@"
968     set -- $($cflags_filter "$@")
969     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
970 int x;
971 EOF
972 }
973
974 test_ldflags(){
975     log test_ldflags "$@"
976     check_ld "cc" "$@" <<EOF
977 int main(void){ return 0; }
978 EOF
979 }
980
981 check_ldflags(){
982     log check_ldflags "$@"
983     test_ldflags "$@" && add_ldflags "$@"
984 }
985
986 test_stripflags(){
987     log test_stripflags "$@"
988     # call check_cc to get a fresh TMPO
989     check_cc <<EOF
990 int main(void) { return 0; }
991 EOF
992     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
993 }
994
995 check_stripflags(){
996     log check_stripflags "$@"
997     test_stripflags "$@" && add_stripflags "$@"
998 }
999
1000 check_header(){
1001     log check_header "$@"
1002     header=$1
1003     shift
1004     disable_safe $header
1005     check_cpp "$@" <<EOF && enable_safe $header
1006 #include <$header>
1007 int x;
1008 EOF
1009 }
1010
1011 check_header_oc(){
1012     log check_header_oc "$@"
1013     rm -f -- "$TMPO"
1014     header=$1
1015     shift
1016     disable_safe $header
1017     {
1018        echo "#include <$header>"
1019        echo "int main(void) { return 0; }"
1020     } | check_oc && check_stat "$TMPO" && enable_safe $headers
1021 }
1022
1023 check_func(){
1024     log check_func "$@"
1025     func=$1
1026     shift
1027     disable $func
1028     check_ld "cc" "$@" <<EOF && enable $func
1029 extern int $func();
1030 int main(void){ $func(); }
1031 EOF
1032 }
1033
1034 check_mathfunc(){
1035     log check_mathfunc "$@"
1036     func=$1
1037     narg=$2
1038     shift 2
1039     test $narg = 2 && args="f, g" || args="f"
1040     disable $func
1041     check_ld "cc" "$@" <<EOF && enable $func
1042 #include <math.h>
1043 float foo(float f, float g) { return $func($args); }
1044 int main(void){ return (int) foo; }
1045 EOF
1046 }
1047
1048 check_func_headers(){
1049     log check_func_headers "$@"
1050     headers=$1
1051     funcs=$2
1052     shift 2
1053     {
1054         for hdr in $headers; do
1055             print_include $hdr
1056         done
1057         for func in $funcs; do
1058             echo "long check_$func(void) { return (long) $func; }"
1059         done
1060         echo "int main(void) { return 0; }"
1061     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1062 }
1063
1064 check_class_headers_cpp(){
1065     log check_class_headers_cpp "$@"
1066     headers=$1
1067     classes=$2
1068     shift 2
1069     {
1070         for hdr in $headers; do
1071             echo "#include <$hdr>"
1072         done
1073         echo "int main(void) { "
1074         i=1
1075         for class in $classes; do
1076             echo "$class obj$i;"
1077             i=$(expr $i + 1)
1078         done
1079         echo "return 0; }"
1080     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1081 }
1082
1083 check_cpp_condition(){
1084     log check_cpp_condition "$@"
1085     header=$1
1086     condition=$2
1087     shift 2
1088     check_cpp "$@" <<EOF
1089 #include <$header>
1090 #if !($condition)
1091 #error "unsatisfied condition: $condition"
1092 #endif
1093 EOF
1094 }
1095
1096 check_lib(){
1097     log check_lib "$@"
1098     header="$1"
1099     func="$2"
1100     shift 2
1101     check_header $header && check_func $func "$@" && add_extralibs "$@"
1102 }
1103
1104 check_lib2(){
1105     log check_lib2 "$@"
1106     headers="$1"
1107     funcs="$2"
1108     shift 2
1109     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1110 }
1111
1112 check_lib_cpp(){
1113     log check_lib_cpp "$@"
1114     headers="$1"
1115     classes="$2"
1116     shift 2
1117     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1118 }
1119
1120 check_pkg_config(){
1121     log check_pkg_config "$@"
1122     pkgandversion="$1"
1123     pkg="${1%% *}"
1124     headers="$2"
1125     funcs="$3"
1126     shift 3
1127     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1128     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1129     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1130     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1131         set_safe "${pkg}_cflags" $pkg_cflags   &&
1132         set_safe "${pkg}_libs"   $pkg_libs
1133 }
1134
1135 check_exec(){
1136     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1137 }
1138
1139 check_exec_crash(){
1140     code=$(cat)
1141
1142     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1143     # are safe but may not be available everywhere.  Thus we use
1144     # raise(SIGTERM) instead.  The check is run in a subshell so we
1145     # can redirect the "Terminated" message from the shell.  SIGBUS
1146     # is not defined by standard C so it is used conditionally.
1147
1148     (check_exec "$@") >> $logfile 2>&1 <<EOF
1149 #include <signal.h>
1150 static void sighandler(int sig){
1151     raise(SIGTERM);
1152 }
1153 int foo(void){
1154     $code
1155 }
1156 int (*func_ptr)(void) = foo;
1157 int main(void){
1158     signal(SIGILL, sighandler);
1159     signal(SIGFPE, sighandler);
1160     signal(SIGSEGV, sighandler);
1161 #ifdef SIGBUS
1162     signal(SIGBUS, sighandler);
1163 #endif
1164     return func_ptr();
1165 }
1166 EOF
1167 }
1168
1169 check_type(){
1170     log check_type "$@"
1171     headers=$1
1172     type=$2
1173     shift 2
1174     disable_safe "$type"
1175     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1176 }
1177
1178 check_struct(){
1179     log check_struct "$@"
1180     headers=$1
1181     struct=$2
1182     member=$3
1183     shift 3
1184     disable_safe "${struct}_${member}"
1185     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1186         enable_safe "${struct}_${member}"
1187 }
1188
1189 check_builtin(){
1190     log check_builtin "$@"
1191     name=$1
1192     headers=$2
1193     builtin=$3
1194     shift 3
1195     disable "$name"
1196     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1197 }
1198
1199 check_compile_assert(){
1200     log check_compile_assert "$@"
1201     name=$1
1202     headers=$2
1203     condition=$3
1204     shift 3
1205     disable "$name"
1206     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1207 }
1208
1209 require(){
1210     name="$1"
1211     header="$2"
1212     func="$3"
1213     shift 3
1214     check_lib $header $func "$@" || die "ERROR: $name not found"
1215 }
1216
1217 require2(){
1218     name="$1"
1219     headers="$2"
1220     func="$3"
1221     shift 3
1222     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1223 }
1224
1225 require_cpp(){
1226     name="$1"
1227     headers="$2"
1228     classes="$3"
1229     shift 3
1230     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1231 }
1232
1233 use_pkg_config(){
1234     pkg="$1"
1235     check_pkg_config "$@" || return 1
1236     add_cflags    $(get_safe "${pkg}_cflags")
1237     add_extralibs $(get_safe "${pkg}_libs")
1238 }
1239
1240 require_pkg_config(){
1241     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1242 }
1243
1244 require_libfreetype(){
1245     log require_libfreetype "$@"
1246     pkg="freetype2"
1247     check_cmd $pkg_config --exists --print-errors $pkg \
1248       || die "ERROR: $pkg not found"
1249     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1250     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1251     {
1252         echo "#include <ft2build.h>"
1253         echo "#include FT_FREETYPE_H"
1254         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1255         echo "int main(void) { return 0; }"
1256     } | check_ld "cc" $pkg_cflags $pkg_libs \
1257       && set_safe "${pkg}_cflags" $pkg_cflags \
1258       && set_safe "${pkg}_libs"   $pkg_libs \
1259       || die "ERROR: $pkg not found"
1260     add_cflags    $(get_safe "${pkg}_cflags")
1261     add_extralibs $(get_safe "${pkg}_libs")
1262 }
1263
1264 hostcc_e(){
1265     eval printf '%s\\n' $HOSTCC_E
1266 }
1267
1268 hostcc_o(){
1269     eval printf '%s\\n' $HOSTCC_O
1270 }
1271
1272 check_host_cc(){
1273     log check_host_cc "$@"
1274     cat > $TMPC
1275     log_file $TMPC
1276     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1277 }
1278
1279 check_host_cpp(){
1280     log check_host_cpp "$@"
1281     cat > $TMPC
1282     log_file $TMPC
1283     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1284 }
1285
1286 check_host_cppflags(){
1287     log check_host_cppflags "$@"
1288     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1289 int x;
1290 EOF
1291 }
1292
1293 check_host_cflags(){
1294     log check_host_cflags "$@"
1295     set -- $($host_cflags_filter "$@")
1296     check_host_cc "$@" <<EOF && append host_cflags "$@"
1297 int x;
1298 EOF
1299 }
1300
1301 check_host_cpp_condition(){
1302     log check_host_cpp_condition "$@"
1303     header=$1
1304     condition=$2
1305     shift 2
1306     check_host_cpp "$@" <<EOF
1307 #include <$header>
1308 #if !($condition)
1309 #error "unsatisfied condition: $condition"
1310 #endif
1311 EOF
1312 }
1313
1314 apply(){
1315     file=$1
1316     shift
1317     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1318 }
1319
1320 cp_if_changed(){
1321     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1322     mkdir -p "$(dirname $2)"
1323     $cp_f "$1" "$2"
1324 }
1325
1326 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1327 # system-dependent things.
1328
1329 COMPONENT_LIST="
1330     bsfs
1331     decoders
1332     demuxers
1333     encoders
1334     filters
1335     hwaccels
1336     indevs
1337     muxers
1338     outdevs
1339     parsers
1340     protocols
1341 "
1342
1343 EXAMPLE_LIST="
1344     avio_reading_example
1345     avio_list_dir_example
1346     decoding_encoding_example
1347     demuxing_decoding_example
1348     extract_mvs_example
1349     filter_audio_example
1350     filtering_audio_example
1351     filtering_video_example
1352     metadata_example
1353     muxing_example
1354     qsvdec_example
1355     remuxing_example
1356     resampling_audio_example
1357     scaling_video_example
1358     transcode_aac_example
1359     transcoding_example
1360 "
1361
1362 EXTERNAL_LIBRARY_LIST="
1363     avisynth
1364     bzlib
1365     crystalhd
1366     decklink
1367     frei0r
1368     gnutls
1369     iconv
1370     ladspa
1371     libaacplus
1372     libass
1373     libbluray
1374     libbs2b
1375     libcaca
1376     libcdio
1377     libcelt
1378     libdc1394
1379     libdcadec
1380     libfaac
1381     libfdk_aac
1382     libflite
1383     libfontconfig
1384     libfreetype
1385     libfribidi
1386     libgme
1387     libgsm
1388     libiec61883
1389     libilbc
1390     libkvazaar
1391     libmfx
1392     libmodplug
1393     libmp3lame
1394     libnut
1395     libopencore_amrnb
1396     libopencore_amrwb
1397     libopencv
1398     libopenh264
1399     libopenjpeg
1400     libopus
1401     libpulse
1402     libquvi
1403     librtmp
1404     libschroedinger
1405     libshine
1406     libsmbclient
1407     libsnappy
1408     libsoxr
1409     libspeex
1410     libssh
1411     libstagefright_h264
1412     libtheora
1413     libtwolame
1414     libutvideo
1415     libv4l2
1416     libvidstab
1417     libvo_aacenc
1418     libvo_amrwbenc
1419     libvorbis
1420     libvpx
1421     libwavpack
1422     libwebp
1423     libx264
1424     libx265
1425     libxavs
1426     libxcb
1427     libxcb_shm
1428     libxcb_shape
1429     libxcb_xfixes
1430     libxvid
1431     libzmq
1432     libzvbi
1433     lzma
1434     mmal
1435     nvenc
1436     openal
1437     opencl
1438     opengl
1439     openssl
1440     sdl
1441     securetransport
1442     x11grab
1443     xlib
1444     zlib
1445 "
1446
1447 DOCUMENT_LIST="
1448     doc
1449     htmlpages
1450     manpages
1451     podpages
1452     txtpages
1453 "
1454
1455 FEATURE_LIST="
1456     ftrapv
1457     gray
1458     hardcoded_tables
1459     runtime_cpudetect
1460     safe_bitstream_reader
1461     shared
1462     small
1463     static
1464     swscale_alpha
1465 "
1466
1467 HWACCEL_LIST="
1468     d3d11va
1469     dxva2
1470     vaapi
1471     vda
1472     vdpau
1473     xvmc
1474 "
1475
1476 LIBRARY_LIST="
1477     avcodec
1478     avdevice
1479     avfilter
1480     avformat
1481     avresample
1482     avutil
1483     postproc
1484     swresample
1485     swscale
1486 "
1487
1488 LICENSE_LIST="
1489     gpl
1490     nonfree
1491     version3
1492 "
1493
1494 PROGRAM_LIST="
1495     ffplay
1496     ffprobe
1497     ffserver
1498     ffmpeg
1499 "
1500
1501 SUBSYSTEM_LIST="
1502     dct
1503     dwt
1504     error_resilience
1505     faan
1506     fast_unaligned
1507     fft
1508     lsp
1509     lzo
1510     mdct
1511     pixelutils
1512     network
1513     rdft
1514 "
1515
1516 CONFIG_LIST="
1517     $COMPONENT_LIST
1518     $DOCUMENT_LIST
1519     $EXAMPLE_LIST
1520     $EXTERNAL_LIBRARY_LIST
1521     $FEATURE_LIST
1522     $HWACCEL_LIST
1523     $LICENSE_LIST
1524     $LIBRARY_LIST
1525     $PROGRAM_LIST
1526     $SUBSYSTEM_LIST
1527     fontconfig
1528     incompatible_libav_abi
1529     memalign_hack
1530     memory_poisoning
1531     neon_clobber_test
1532     pic
1533     pod2man
1534     raise_major
1535     thumb
1536     valgrind_backtrace
1537     xmm_clobber_test
1538 "
1539
1540 THREADS_LIST="
1541     pthreads
1542     os2threads
1543     w32threads
1544 "
1545
1546 ATOMICS_LIST="
1547     atomics_gcc
1548     atomics_suncc
1549     atomics_win32
1550 "
1551
1552 ARCH_LIST="
1553     aarch64
1554     alpha
1555     arm
1556     avr32
1557     avr32_ap
1558     avr32_uc
1559     bfin
1560     ia64
1561     m68k
1562     mips
1563     mips64
1564     parisc
1565     ppc
1566     ppc64
1567     s390
1568     sh4
1569     sparc
1570     sparc64
1571     tilegx
1572     tilepro
1573     tomi
1574     x86
1575     x86_32
1576     x86_64
1577 "
1578
1579 ARCH_EXT_LIST_ARM="
1580     armv5te
1581     armv6
1582     armv6t2
1583     armv8
1584     neon
1585     vfp
1586     vfpv3
1587     setend
1588 "
1589
1590 ARCH_EXT_LIST_MIPS="
1591     mipsfpu
1592     mips32r2
1593     mips32r5
1594     mips64r6
1595     mipsdspr1
1596     mipsdspr2
1597     msa
1598 "
1599
1600 ARCH_EXT_LIST_LOONGSON="
1601     loongson2
1602     loongson3
1603     mmi
1604 "
1605
1606 ARCH_EXT_LIST_X86_SIMD="
1607     amd3dnow
1608     amd3dnowext
1609     avx
1610     avx2
1611     fma3
1612     fma4
1613     mmx
1614     mmxext
1615     sse
1616     sse2
1617     sse3
1618     sse4
1619     sse42
1620     ssse3
1621     xop
1622 "
1623
1624 ARCH_EXT_LIST_PPC="
1625     altivec
1626     dcbzl
1627     ldbrx
1628     power8
1629     ppc4xx
1630     vsx
1631 "
1632
1633 ARCH_EXT_LIST_X86="
1634     $ARCH_EXT_LIST_X86_SIMD
1635     cpunop
1636     i686
1637 "
1638
1639 ARCH_EXT_LIST="
1640     $ARCH_EXT_LIST_ARM
1641     $ARCH_EXT_LIST_PPC
1642     $ARCH_EXT_LIST_X86
1643     $ARCH_EXT_LIST_MIPS
1644     $ARCH_EXT_LIST_LOONGSON
1645 "
1646
1647 ARCH_FEATURES="
1648     aligned_stack
1649     fast_64bit
1650     fast_clz
1651     fast_cmov
1652     local_aligned_8
1653     local_aligned_16
1654     local_aligned_32
1655     simd_align_16
1656 "
1657
1658 BUILTIN_LIST="
1659     atomic_cas_ptr
1660     atomic_compare_exchange
1661     machine_rw_barrier
1662     MemoryBarrier
1663     mm_empty
1664     rdtsc
1665     sarestart
1666     sync_val_compare_and_swap
1667 "
1668 HAVE_LIST_CMDLINE="
1669     inline_asm
1670     symver
1671     yasm
1672 "
1673
1674 HAVE_LIST_PUB="
1675     bigendian
1676     fast_unaligned
1677     incompatible_libav_abi
1678 "
1679
1680 HEADERS_LIST="
1681     alsa_asoundlib_h
1682     altivec_h
1683     arpa_inet_h
1684     asm_types_h
1685     cdio_paranoia_h
1686     cdio_paranoia_paranoia_h
1687     dev_bktr_ioctl_bt848_h
1688     dev_bktr_ioctl_meteor_h
1689     dev_ic_bt8xx_h
1690     dev_video_bktr_ioctl_bt848_h
1691     dev_video_meteor_ioctl_meteor_h
1692     direct_h
1693     dlfcn_h
1694     d3d11_h
1695     dxva_h
1696     ES2_gl_h
1697     gsm_h
1698     io_h
1699     mach_mach_time_h
1700     machine_ioctl_bt848_h
1701     machine_ioctl_meteor_h
1702     malloc_h
1703     openjpeg_1_5_openjpeg_h
1704     OpenGL_gl3_h
1705     poll_h
1706     sndio_h
1707     soundcard_h
1708     sys_mman_h
1709     sys_param_h
1710     sys_resource_h
1711     sys_select_h
1712     sys_soundcard_h
1713     sys_time_h
1714     sys_un_h
1715     sys_videoio_h
1716     termios_h
1717     udplite_h
1718     unistd_h
1719     valgrind_valgrind_h
1720     windows_h
1721     winsock2_h
1722 "
1723
1724 INTRINSICS_LIST="
1725     intrinsics_neon
1726 "
1727
1728 MATH_FUNCS="
1729     atanf
1730     atan2f
1731     cbrt
1732     cbrtf
1733     copysign
1734     cosf
1735     erf
1736     exp2
1737     exp2f
1738     expf
1739     isinf
1740     isnan
1741     ldexpf
1742     llrint
1743     llrintf
1744     log2
1745     log2f
1746     log10f
1747     lrint
1748     lrintf
1749     powf
1750     rint
1751     round
1752     roundf
1753     sinf
1754     trunc
1755     truncf
1756 "
1757
1758 SYSTEM_FUNCS="
1759     access
1760     aligned_malloc
1761     clock_gettime
1762     closesocket
1763     CommandLineToArgvW
1764     CoTaskMemFree
1765     CryptGenRandom
1766     dlopen
1767     fcntl
1768     flt_lim
1769     fork
1770     getaddrinfo
1771     gethrtime
1772     getopt
1773     GetProcessAffinityMask
1774     GetProcessMemoryInfo
1775     GetProcessTimes
1776     getrusage
1777     getservbyport
1778     GetSystemTimeAsFileTime
1779     gettimeofday
1780     glob
1781     glXGetProcAddress
1782     gmtime_r
1783     inet_aton
1784     isatty
1785     jack_port_get_latency_range
1786     kbhit
1787     localtime_r
1788     lzo1x_999_compress
1789     mach_absolute_time
1790     MapViewOfFile
1791     memalign
1792     mkstemp
1793     mmap
1794     mprotect
1795     nanosleep
1796     PeekNamedPipe
1797     posix_memalign
1798     pthread_cancel
1799     sched_getaffinity
1800     SetConsoleTextAttribute
1801     SetConsoleCtrlHandler
1802     setmode
1803     setrlimit
1804     Sleep
1805     strerror_r
1806     sysconf
1807     sysctl
1808     usleep
1809     VirtualAlloc
1810     wglGetProcAddress
1811 "
1812
1813 TOOLCHAIN_FEATURES="
1814     as_dn_directive
1815     as_func
1816     as_object_arch
1817     asm_mod_q
1818     attribute_may_alias
1819     attribute_packed
1820     ebp_available
1821     ebx_available
1822     gnu_as
1823     gnu_windres
1824     ibm_asm
1825     inline_asm_labels
1826     inline_asm_nonlocal_labels
1827     inline_asm_direct_symbol_refs
1828     pragma_deprecated
1829     rsync_contimeout
1830     symver_asm_label
1831     symver_gnu_asm
1832     vfp_args
1833     xform_asm
1834     xmm_clobbers
1835 "
1836
1837 TYPES_LIST="
1838     CONDITION_VARIABLE_Ptr
1839     socklen_t
1840     struct_addrinfo
1841     struct_dcadec_exss_info_matrix_encoding
1842     struct_group_source_req
1843     struct_ip_mreq_source
1844     struct_ipv6_mreq
1845     struct_pollfd
1846     struct_rusage_ru_maxrss
1847     struct_sctp_event_subscribe
1848     struct_sockaddr_in6
1849     struct_sockaddr_sa_len
1850     struct_sockaddr_storage
1851     struct_stat_st_mtim_tv_nsec
1852     struct_v4l2_frmivalenum_discrete
1853 "
1854
1855 HAVE_LIST="
1856     $ARCH_EXT_LIST
1857     $(add_suffix _external $ARCH_EXT_LIST)
1858     $(add_suffix _inline   $ARCH_EXT_LIST)
1859     $ARCH_FEATURES
1860     $ATOMICS_LIST
1861     $BUILTIN_LIST
1862     $HAVE_LIST_CMDLINE
1863     $HAVE_LIST_PUB
1864     $HEADERS_LIST
1865     $INTRINSICS_LIST
1866     $MATH_FUNCS
1867     $SYSTEM_FUNCS
1868     $THREADS_LIST
1869     $TOOLCHAIN_FEATURES
1870     $TYPES_LIST
1871     atomics_native
1872     dos_paths
1873     dxva2api_cobj
1874     dxva2_lib
1875     libc_msvcrt
1876     libdc1394_1
1877     libdc1394_2
1878     makeinfo
1879     makeinfo_html
1880     perl
1881     pod2man
1882     sdl
1883     section_data_rel_ro
1884     texi2html
1885     threads
1886     vaapi_x11
1887     vdpau_x11
1888     xlib
1889 "
1890
1891 # options emitted with CONFIG_ prefix but not available on the command line
1892 CONFIG_EXTRA="
1893     aandcttables
1894     ac3dsp
1895     audio_frame_queue
1896     audiodsp
1897     blockdsp
1898     bswapdsp
1899     cabac
1900     dvprofile
1901     exif
1902     faandct
1903     faanidct
1904     fdctdsp
1905     flacdsp
1906     fmtconvert
1907     frame_thread_encoder
1908     g722dsp
1909     gcrypt
1910     gmp
1911     golomb
1912     gplv3
1913     h263dsp
1914     h264chroma
1915     h264dsp
1916     h264pred
1917     h264qpel
1918     hpeldsp
1919     huffman
1920     huffyuvdsp
1921     huffyuvencdsp
1922     idctdsp
1923     iirfilter
1924     imdct15
1925     intrax8
1926     ividsp
1927     jpegtables
1928     libx262
1929     lgplv3
1930     llauddsp
1931     llviddsp
1932     lpc
1933     me_cmp
1934     mpeg_er
1935     mpegaudio
1936     mpegaudiodsp
1937     mpegvideo
1938     mpegvideoenc
1939     mss34dsp
1940     pixblockdsp
1941     qpeldsp
1942     qsv
1943     qsvdec
1944     qsvenc
1945     rangecoder
1946     riffdec
1947     riffenc
1948     rtpdec
1949     rtpenc_chain
1950     rv34dsp
1951     sinewin
1952     snappy
1953     startcode
1954     texturedsp
1955     texturedspenc
1956     tpeldsp
1957     videodsp
1958     vp3dsp
1959     vp56dsp
1960     vp8dsp
1961     wma_freqs
1962     wmv2dsp
1963 "
1964
1965 CMDLINE_SELECT="
1966     $ARCH_EXT_LIST
1967     $CONFIG_LIST
1968     $HAVE_LIST_CMDLINE
1969     $THREADS_LIST
1970     asm
1971     cross_compile
1972     debug
1973     extra_warnings
1974     logging
1975     lto
1976     optimizations
1977     rpath
1978     stripping
1979 "
1980
1981 PATHS_LIST="
1982     bindir
1983     datadir
1984     docdir
1985     incdir
1986     libdir
1987     mandir
1988     pkgconfigdir
1989     prefix
1990     shlibdir
1991 "
1992
1993 CMDLINE_SET="
1994     $PATHS_LIST
1995     ar
1996     arch
1997     as
1998     assert_level
1999     build_suffix
2000     cc
2001     cpu
2002     cross_prefix
2003     cxx
2004     dep_cc
2005     doxygen
2006     env
2007     extra_version
2008     gas
2009     host_cc
2010     host_cflags
2011     host_ld
2012     host_ldflags
2013     host_libs
2014     host_os
2015     install
2016     ld
2017     logfile
2018     malloc_prefix
2019     nm
2020     optflags
2021     pkg_config
2022     pkg_config_flags
2023     progs_suffix
2024     random_seed
2025     ranlib
2026     samples
2027     strip
2028     sws_max_filter_size
2029     sysinclude
2030     sysroot
2031     target_exec
2032     target_os
2033     target_path
2034     target_samples
2035     tempprefix
2036     toolchain
2037     valgrind
2038     yasmexe
2039 "
2040
2041 CMDLINE_APPEND="
2042     extra_cflags
2043     extra_cxxflags
2044     host_cppflags
2045 "
2046
2047 # code dependency declarations
2048
2049 # architecture extensions
2050
2051 armv5te_deps="arm"
2052 armv6_deps="arm"
2053 armv6t2_deps="arm"
2054 armv8_deps="aarch64"
2055 neon_deps_any="aarch64 arm"
2056 intrinsics_neon_deps="neon"
2057 vfp_deps_any="aarch64 arm"
2058 vfpv3_deps="vfp"
2059 setend_deps="arm"
2060
2061 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2062
2063 mipsfpu_deps="mips"
2064 mipsdspr1_deps="mips"
2065 mipsdspr2_deps="mips"
2066 mips32r2_deps="mips"
2067 mips32r5_deps="mips"
2068 mips64r6_deps="mips"
2069 msa_deps="mips"
2070 mmi_deps="mips"
2071
2072 altivec_deps="ppc"
2073 dcbzl_deps="ppc"
2074 ldbrx_deps="ppc"
2075 ppc4xx_deps="ppc"
2076 vsx_deps="altivec"
2077 power8_deps="vsx"
2078
2079 cpunop_deps="i686"
2080 x86_64_select="i686"
2081 x86_64_suggest="fast_cmov"
2082
2083 amd3dnow_deps="mmx"
2084 amd3dnowext_deps="amd3dnow"
2085 i686_deps="x86"
2086 mmx_deps="x86"
2087 mmxext_deps="mmx"
2088 sse_deps="mmxext"
2089 sse2_deps="sse"
2090 sse3_deps="sse2"
2091 ssse3_deps="sse3"
2092 sse4_deps="ssse3"
2093 sse42_deps="sse4"
2094 avx_deps="sse42"
2095 xop_deps="avx"
2096 fma3_deps="avx"
2097 fma4_deps="avx"
2098 avx2_deps="avx"
2099
2100 mmx_external_deps="yasm"
2101 mmx_inline_deps="inline_asm"
2102 mmx_suggest="mmx_external mmx_inline"
2103
2104 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2105     eval dep=\$${ext}_deps
2106     eval ${ext}_external_deps='"${dep}_external"'
2107     eval ${ext}_inline_deps='"${dep}_inline"'
2108     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2109 done
2110
2111 aligned_stack_if_any="aarch64 ppc x86"
2112 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2113 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2114 fast_unaligned_if_any="aarch64 ppc x86"
2115 simd_align_16_if_any="altivec neon sse"
2116
2117 # system capabilities
2118 symver_if_any="symver_asm_label symver_gnu_asm"
2119 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2120
2121 # threading support
2122 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2123 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2124 atomics_win32_if="MemoryBarrier"
2125 atomics_native_if_any="$ATOMICS_LIST"
2126 w32threads_deps="atomics_native"
2127 threads_if_any="$THREADS_LIST"
2128
2129 # subsystems
2130 dct_select="rdft"
2131 error_resilience_select="me_cmp"
2132 faandct_deps="faan fdctdsp"
2133 faanidct_deps="faan idctdsp"
2134 frame_thread_encoder_deps="encoders threads"
2135 intrax8_select="error_resilience"
2136 mdct_select="fft"
2137 rdft_select="fft"
2138 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2139 mpeg_er_select="error_resilience"
2140 mpegaudio_select="mpegaudiodsp"
2141 mpegaudiodsp_select="dct"
2142 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2143 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2144 qsvdec_select="qsv"
2145 qsvenc_select="qsv"
2146
2147 # decoders / encoders
2148 aac_decoder_select="imdct15 mdct sinewin"
2149 aac_fixed_decoder_select="mdct sinewin"
2150 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2151 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2152 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2153 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2154 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2155 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2156 adpcm_g722_decoder_select="g722dsp"
2157 adpcm_g722_encoder_select="g722dsp"
2158 aic_decoder_select="golomb idctdsp"
2159 alac_encoder_select="lpc"
2160 als_decoder_select="bswapdsp"
2161 amrnb_decoder_select="lsp"
2162 amrwb_decoder_select="lsp"
2163 amv_decoder_select="sp5x_decoder exif"
2164 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2165 ape_decoder_select="bswapdsp llauddsp"
2166 apng_decoder_select="zlib"
2167 apng_encoder_select="huffyuvencdsp zlib"
2168 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2169 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2170 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2171 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2172 atrac1_decoder_select="mdct sinewin"
2173 atrac3_decoder_select="mdct"
2174 atrac3p_decoder_select="mdct sinewin"
2175 avrn_decoder_select="exif jpegtables"
2176 bink_decoder_select="blockdsp hpeldsp"
2177 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2178 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2179 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2180 cllc_decoder_select="bswapdsp"
2181 comfortnoise_encoder_select="lpc"
2182 cook_decoder_select="audiodsp mdct sinewin"
2183 cscd_decoder_select="lzo"
2184 cscd_decoder_suggest="zlib"
2185 dca_decoder_select="fmtconvert mdct"
2186 dds_decoder_select="texturedsp"
2187 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2188 dnxhd_decoder_select="blockdsp idctdsp"
2189 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2190 dvvideo_decoder_select="dvprofile idctdsp"
2191 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2192 dxa_decoder_select="zlib"
2193 eac3_decoder_select="ac3_decoder"
2194 eac3_encoder_select="ac3_encoder"
2195 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2196 eatgq_decoder_select="aandcttables"
2197 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2198 exr_decoder_select="zlib"
2199 ffv1_decoder_select="golomb rangecoder"
2200 ffv1_encoder_select="rangecoder"
2201 ffvhuff_decoder_select="huffyuv_decoder"
2202 ffvhuff_encoder_select="huffyuv_encoder"
2203 fic_decoder_select="golomb"
2204 flac_decoder_select="flacdsp golomb"
2205 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2206 flashsv_decoder_select="zlib"
2207 flashsv_encoder_select="zlib"
2208 flashsv2_encoder_select="zlib"
2209 flashsv2_decoder_select="zlib"
2210 flv_decoder_select="h263_decoder"
2211 flv_encoder_select="h263_encoder"
2212 fourxm_decoder_select="blockdsp bswapdsp"
2213 fraps_decoder_select="bswapdsp huffman"
2214 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2215 g729_decoder_select="audiodsp"
2216 h261_decoder_select="mpeg_er mpegvideo"
2217 h261_encoder_select="aandcttables mpegvideoenc"
2218 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2219 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2220 h263i_decoder_select="h263_decoder"
2221 h263p_decoder_select="h263_decoder"
2222 h263p_encoder_select="h263_encoder"
2223 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2224 h264_decoder_suggest="error_resilience"
2225 h264_qsv_decoder_deps="libmfx"
2226 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2227 h264_qsv_encoder_deps="libmfx"
2228 h264_qsv_encoder_select="qsvenc"
2229 hap_decoder_select="snappy texturedsp"
2230 hap_encoder_deps="libsnappy"
2231 hap_encoder_select="texturedspenc"
2232 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2233 hevc_qsv_encoder_deps="libmfx"
2234 hevc_qsv_encoder_select="qsvenc"
2235 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2236 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2237 iac_decoder_select="imc_decoder"
2238 imc_decoder_select="bswapdsp fft mdct sinewin"
2239 indeo3_decoder_select="hpeldsp"
2240 indeo4_decoder_select="ividsp"
2241 indeo5_decoder_select="ividsp"
2242 interplay_video_decoder_select="hpeldsp"
2243 jpegls_decoder_select="golomb mjpeg_decoder"
2244 jpegls_encoder_select="golomb"
2245 jv_decoder_select="blockdsp"
2246 lagarith_decoder_select="huffyuvdsp"
2247 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2248 loco_decoder_select="golomb"
2249 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2250 metasound_decoder_select="lsp mdct sinewin"
2251 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2252 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2253 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2254 mjpegb_decoder_select="mjpeg_decoder"
2255 mlp_decoder_select="mlp_parser"
2256 motionpixels_decoder_select="bswapdsp"
2257 mp1_decoder_select="mpegaudio"
2258 mp1float_decoder_select="mpegaudio"
2259 mp2_decoder_select="mpegaudio"
2260 mp2float_decoder_select="mpegaudio"
2261 mp3_decoder_select="mpegaudio"
2262 mp3adu_decoder_select="mpegaudio"
2263 mp3adufloat_decoder_select="mpegaudio"
2264 mp3float_decoder_select="mpegaudio"
2265 mp3on4_decoder_select="mpegaudio"
2266 mp3on4float_decoder_select="mpegaudio"
2267 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2268 mpc8_decoder_select="mpegaudiodsp"
2269 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2270 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2271 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2272 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2273 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2274 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2275 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2276 mpeg2_qsv_decoder_deps="libmfx"
2277 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2278 mpeg2_qsv_encoder_deps="libmfx"
2279 mpeg2_qsv_encoder_select="qsvenc"
2280 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2281 mpeg4_encoder_select="h263_encoder"
2282 msa1_decoder_select="mss34dsp"
2283 msmpeg4v1_decoder_select="h263_decoder"
2284 msmpeg4v2_decoder_select="h263_decoder"
2285 msmpeg4v2_encoder_select="h263_encoder"
2286 msmpeg4v3_decoder_select="h263_decoder"
2287 msmpeg4v3_encoder_select="h263_encoder"
2288 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2289 mts2_decoder_select="mss34dsp"
2290 mxpeg_decoder_select="mjpeg_decoder"
2291 nellymoser_decoder_select="mdct sinewin"
2292 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2293 nuv_decoder_select="idctdsp lzo"
2294 on2avc_decoder_select="mdct"
2295 opus_decoder_deps="swresample"
2296 opus_decoder_select="imdct15"
2297 png_decoder_select="zlib"
2298 png_encoder_select="huffyuvencdsp zlib"
2299 prores_decoder_select="blockdsp idctdsp"
2300 prores_encoder_select="fdctdsp"
2301 qcelp_decoder_select="lsp"
2302 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2303 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2304 ra_144_decoder_select="audiodsp"
2305 ralf_decoder_select="golomb"
2306 rawvideo_decoder_select="bswapdsp"
2307 rtjpeg_decoder_select="me_cmp"
2308 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2309 rv10_encoder_select="h263_encoder"
2310 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2311 rv20_encoder_select="h263_encoder"
2312 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2313 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2314 shorten_decoder_select="golomb"
2315 sipr_decoder_select="lsp"
2316 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2317 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2318 sonic_decoder_select="golomb rangecoder"
2319 sonic_encoder_select="golomb rangecoder"
2320 sonic_ls_encoder_select="golomb rangecoder"
2321 sp5x_decoder_select="mjpeg_decoder"
2322 svq1_decoder_select="hpeldsp"
2323 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2324 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2325 svq3_decoder_suggest="zlib"
2326 tak_decoder_select="audiodsp"
2327 tdsc_decoder_select="zlib mjpeg_decoder"
2328 theora_decoder_select="vp3_decoder"
2329 thp_decoder_select="mjpeg_decoder"
2330 tiff_decoder_suggest="zlib lzma"
2331 tiff_encoder_suggest="zlib"
2332 truehd_decoder_select="mlp_parser"
2333 truemotion2_decoder_select="bswapdsp"
2334 truespeech_decoder_select="bswapdsp"
2335 tscc_decoder_select="zlib"
2336 twinvq_decoder_select="mdct lsp sinewin"
2337 txd_decoder_select="texturedsp"
2338 utvideo_decoder_select="bswapdsp"
2339 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2340 vble_decoder_select="huffyuvdsp"
2341 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2342 vc1image_decoder_select="vc1_decoder"
2343 vc1_qsv_decoder_deps="libmfx"
2344 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2345 vorbis_decoder_select="mdct"
2346 vorbis_encoder_select="mdct"
2347 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2348 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2349 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2350 vp6a_decoder_select="vp6_decoder"
2351 vp6f_decoder_select="vp6_decoder"
2352 vp7_decoder_select="h264pred videodsp vp8dsp"
2353 vp8_decoder_select="h264pred videodsp vp8dsp"
2354 vp9_decoder_select="videodsp vp9_parser"
2355 webp_decoder_select="vp8_decoder"
2356 wmalossless_decoder_select="llauddsp"
2357 wmapro_decoder_select="mdct sinewin wma_freqs"
2358 wmav1_decoder_select="mdct sinewin wma_freqs"
2359 wmav1_encoder_select="mdct sinewin wma_freqs"
2360 wmav2_decoder_select="mdct sinewin wma_freqs"
2361 wmav2_encoder_select="mdct sinewin wma_freqs"
2362 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2363 wmv1_decoder_select="h263_decoder"
2364 wmv1_encoder_select="h263_encoder"
2365 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2366 wmv2_encoder_select="h263_encoder wmv2dsp"
2367 wmv3_decoder_select="vc1_decoder"
2368 wmv3image_decoder_select="wmv3_decoder"
2369 zerocodec_decoder_select="zlib"
2370 zlib_decoder_select="zlib"
2371 zlib_encoder_select="zlib"
2372 zmbv_decoder_select="zlib"
2373 zmbv_encoder_select="zlib"
2374
2375 # hardware accelerators
2376 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2377 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2378 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2379 vaapi_deps="va_va_h"
2380 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2381 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2382 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2383 xvmc_deps="X11_extensions_XvMClib_h"
2384
2385 h263_vaapi_hwaccel_deps="vaapi"
2386 h263_vaapi_hwaccel_select="h263_decoder"
2387 h263_vdpau_hwaccel_deps="vdpau"
2388 h263_vdpau_hwaccel_select="h263_decoder"
2389 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2390 h264_d3d11va_hwaccel_deps="d3d11va"
2391 h264_d3d11va_hwaccel_select="h264_decoder"
2392 h264_dxva2_hwaccel_deps="dxva2"
2393 h264_dxva2_hwaccel_select="h264_decoder"
2394 h264_mmal_decoder_deps="mmal"
2395 h264_mmal_hwaccel_deps="mmal"
2396 h264_mmal_decoder_select="h264_decoder"
2397 h264_mmal_encoder_deps="mmal"
2398 h264_qsv_hwaccel_deps="libmfx"
2399 h264_vaapi_hwaccel_deps="vaapi"
2400 h264_vaapi_hwaccel_select="h264_decoder"
2401 h264_vda_decoder_deps="vda"
2402 h264_vda_decoder_select="h264_decoder"
2403 h264_vda_hwaccel_deps="vda"
2404 h264_vda_hwaccel_select="h264_decoder"
2405 h264_vda_old_hwaccel_deps="vda"
2406 h264_vda_old_hwaccel_select="h264_decoder"
2407 h264_vdpau_decoder_deps="vdpau"
2408 h264_vdpau_decoder_select="h264_decoder"
2409 h264_vdpau_hwaccel_deps="vdpau"
2410 h264_vdpau_hwaccel_select="h264_decoder"
2411 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2412 hevc_d3d11va_hwaccel_select="hevc_decoder"
2413 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2414 hevc_dxva2_hwaccel_select="hevc_decoder"
2415 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2416 hevc_vdpau_hwaccel_select="hevc_decoder"
2417 mpeg_vdpau_decoder_deps="vdpau"
2418 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2419 mpeg_xvmc_hwaccel_deps="xvmc"
2420 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2421 mpeg1_vdpau_decoder_deps="vdpau"
2422 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2423 mpeg1_vdpau_hwaccel_deps="vdpau"
2424 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2425 mpeg1_xvmc_hwaccel_deps="xvmc"
2426 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2427 mpeg2_crystalhd_decoder_select="crystalhd"
2428 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2429 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2430 mpeg2_dxva2_hwaccel_deps="dxva2"
2431 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2432 mpeg2_vaapi_hwaccel_deps="vaapi"
2433 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2434 mpeg2_vdpau_hwaccel_deps="vdpau"
2435 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2436 mpeg2_xvmc_hwaccel_deps="xvmc"
2437 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2438 mpeg2_qsv_hwaccel_deps="libmfx"
2439 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2440 mpeg4_crystalhd_decoder_select="crystalhd"
2441 mpeg4_vaapi_hwaccel_deps="vaapi"
2442 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2443 mpeg4_vdpau_decoder_deps="vdpau"
2444 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2445 mpeg4_vdpau_hwaccel_deps="vdpau"
2446 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2447 msmpeg4_crystalhd_decoder_select="crystalhd"
2448 vc1_crystalhd_decoder_select="crystalhd"
2449 vc1_d3d11va_hwaccel_deps="d3d11va"
2450 vc1_d3d11va_hwaccel_select="vc1_decoder"
2451 vc1_dxva2_hwaccel_deps="dxva2"
2452 vc1_dxva2_hwaccel_select="vc1_decoder"
2453 vc1_vaapi_hwaccel_deps="vaapi"
2454 vc1_vaapi_hwaccel_select="vc1_decoder"
2455 vc1_vdpau_decoder_deps="vdpau"
2456 vc1_vdpau_decoder_select="vc1_decoder"
2457 vc1_vdpau_hwaccel_deps="vdpau"
2458 vc1_vdpau_hwaccel_select="vc1_decoder"
2459 vc1_qsv_hwaccel_deps="libmfx"
2460 vc1_qsv_hwaccel_select="qsvdec_vc1"
2461 wmv3_crystalhd_decoder_select="crystalhd"
2462 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2463 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2464 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2465 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2466 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2467
2468 # parsers
2469 h264_parser_select="h264_decoder"
2470 hevc_parser_select="golomb"
2471 mpegvideo_parser_select="mpegvideo"
2472 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2473 vc1_parser_select="mpegvideo startcode vc1_decoder"
2474
2475 # bitstream_filters
2476 mjpeg2jpeg_bsf_select="jpegtables"
2477
2478 # external libraries
2479 libaacplus_encoder_deps="libaacplus"
2480 libcelt_decoder_deps="libcelt"
2481 libdcadec_decoder_deps="libdcadec"
2482 libfaac_encoder_deps="libfaac"
2483 libfaac_encoder_select="audio_frame_queue"
2484 libfdk_aac_decoder_deps="libfdk_aac"
2485 libfdk_aac_encoder_deps="libfdk_aac"
2486 libfdk_aac_encoder_select="audio_frame_queue"
2487 libgme_demuxer_deps="libgme"
2488 libgsm_decoder_deps="libgsm"
2489 libgsm_encoder_deps="libgsm"
2490 libgsm_ms_decoder_deps="libgsm"
2491 libgsm_ms_encoder_deps="libgsm"
2492 libilbc_decoder_deps="libilbc"
2493 libilbc_encoder_deps="libilbc"
2494 libkvazaar_encoder_deps="libkvazaar"
2495 libmodplug_demuxer_deps="libmodplug"
2496 libmp3lame_encoder_deps="libmp3lame"
2497 libmp3lame_encoder_select="audio_frame_queue"
2498 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2499 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2500 libopencore_amrnb_encoder_select="audio_frame_queue"
2501 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2502 libopenh264_encoder_deps="libopenh264"
2503 libopenjpeg_decoder_deps="libopenjpeg"
2504 libopenjpeg_encoder_deps="libopenjpeg"
2505 libopus_decoder_deps="libopus"
2506 libopus_encoder_deps="libopus"
2507 libopus_encoder_select="audio_frame_queue"
2508 libquvi_demuxer_deps="libquvi"
2509 libschroedinger_decoder_deps="libschroedinger"
2510 libschroedinger_encoder_deps="libschroedinger"
2511 libshine_encoder_deps="libshine"
2512 libshine_encoder_select="audio_frame_queue"
2513 libspeex_decoder_deps="libspeex"
2514 libspeex_encoder_deps="libspeex"
2515 libspeex_encoder_select="audio_frame_queue"
2516 libstagefright_h264_decoder_deps="libstagefright_h264"
2517 libtheora_encoder_deps="libtheora"
2518 libtwolame_encoder_deps="libtwolame"
2519 libvo_aacenc_encoder_deps="libvo_aacenc"
2520 libvo_aacenc_encoder_select="audio_frame_queue"
2521 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2522 libvorbis_decoder_deps="libvorbis"
2523 libvorbis_encoder_deps="libvorbis"
2524 libvorbis_encoder_select="audio_frame_queue"
2525 libvpx_vp8_decoder_deps="libvpx"
2526 libvpx_vp8_encoder_deps="libvpx"
2527 libvpx_vp9_decoder_deps="libvpx"
2528 libvpx_vp9_encoder_deps="libvpx"
2529 libwavpack_encoder_deps="libwavpack"
2530 libwebp_encoder_deps="libwebp"
2531 libwebp_anim_encoder_deps="libwebp"
2532 libx262_encoder_deps="libx262"
2533 libx264_encoder_deps="libx264"
2534 libx264rgb_encoder_deps="libx264"
2535 libx264rgb_encoder_select="libx264_encoder"
2536 libx265_encoder_deps="libx265"
2537 libxavs_encoder_deps="libxavs"
2538 libxvid_encoder_deps="libxvid"
2539 libutvideo_decoder_deps="libutvideo"
2540 libutvideo_encoder_deps="libutvideo"
2541 libzvbi_teletext_decoder_deps="libzvbi"
2542 nvenc_encoder_deps="nvenc"
2543 nvenc_h264_encoder_deps="nvenc"
2544 nvenc_hevc_encoder_deps="nvenc"
2545
2546 # demuxers / muxers
2547 ac3_demuxer_select="ac3_parser"
2548 asf_demuxer_select="riffdec"
2549 asf_o_demuxer_select="riffdec"
2550 asf_muxer_select="riffenc"
2551 asf_stream_muxer_select="asf_muxer"
2552 avi_demuxer_select="riffdec exif"
2553 avi_muxer_select="riffenc"
2554 avisynth_demuxer_deps="avisynth"
2555 avisynth_demuxer_select="riffdec"
2556 caf_demuxer_select="riffdec"
2557 dash_muxer_select="mp4_muxer"
2558 dirac_demuxer_select="dirac_parser"
2559 dts_demuxer_select="dca_parser"
2560 dtshd_demuxer_select="dca_parser"
2561 dv_demuxer_select="dvprofile"
2562 dv_muxer_select="dvprofile"
2563 dxa_demuxer_select="riffdec"
2564 eac3_demuxer_select="ac3_parser"
2565 f4v_muxer_select="mov_muxer"
2566 flac_demuxer_select="flac_parser"
2567 hds_muxer_select="flv_muxer"
2568 hls_muxer_select="mpegts_muxer"
2569 image2_alias_pix_demuxer_select="image2_demuxer"
2570 image2_brender_pix_demuxer_select="image2_demuxer"
2571 ipod_muxer_select="mov_muxer"
2572 ismv_muxer_select="mov_muxer"
2573 libnut_demuxer_deps="libnut"
2574 libnut_muxer_deps="libnut"
2575 matroska_audio_muxer_select="matroska_muxer"
2576 matroska_demuxer_select="riffdec"
2577 matroska_demuxer_suggest="bzlib lzo zlib"
2578 matroska_muxer_select="riffenc"
2579 mmf_muxer_select="riffenc"
2580 mov_demuxer_select="riffdec"
2581 mov_demuxer_suggest="zlib"
2582 mov_muxer_select="riffenc rtpenc_chain"
2583 mp3_demuxer_select="mpegaudio_parser"
2584 mp4_muxer_select="mov_muxer"
2585 mpegts_muxer_select="adts_muxer latm_muxer"
2586 mpegtsraw_demuxer_select="mpegts_demuxer"
2587 mxf_d10_muxer_select="mxf_muxer"
2588 mxf_opatom_muxer_select="mxf_muxer"
2589 nut_muxer_select="riffenc"
2590 nuv_demuxer_select="riffdec"
2591 oga_muxer_select="ogg_muxer"
2592 ogg_demuxer_select="golomb"
2593 opus_muxer_select="ogg_muxer"
2594 psp_muxer_select="mov_muxer"
2595 rtp_demuxer_select="sdp_demuxer"
2596 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2597 rtsp_demuxer_select="http_protocol rtpdec"
2598 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2599 sap_demuxer_select="sdp_demuxer"
2600 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2601 sdp_demuxer_select="rtpdec"
2602 smoothstreaming_muxer_select="ismv_muxer"
2603 spdif_muxer_select="aac_parser"
2604 spx_muxer_select="ogg_muxer"
2605 tak_demuxer_select="tak_parser"
2606 tg2_muxer_select="mov_muxer"
2607 tgp_muxer_select="mov_muxer"
2608 vobsub_demuxer_select="mpegps_demuxer"
2609 w64_demuxer_select="wav_demuxer"
2610 w64_muxer_select="wav_muxer"
2611 wav_demuxer_select="riffdec"
2612 wav_muxer_select="riffenc"
2613 webm_muxer_select="riffenc"
2614 wtv_demuxer_select="riffdec"
2615 wtv_muxer_select="riffenc"
2616 xmv_demuxer_select="riffdec"
2617 xwma_demuxer_select="riffdec"
2618
2619 # indevs / outdevs
2620 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2621 alsa_outdev_deps="alsa_asoundlib_h"
2622 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2623 avfoundation_indev_select="avfoundation"
2624 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2625 caca_outdev_deps="libcaca"
2626 decklink_outdev_deps="decklink pthreads"
2627 decklink_outdev_extralibs="-lstdc++"
2628 decklink_indev_deps="decklink pthreads"
2629 decklink_indev_extralibs="-lstdc++"
2630 dshow_indev_deps="IBaseFilter"
2631 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2632 dv1394_indev_deps="dv1394"
2633 dv1394_indev_select="dv_demuxer"
2634 fbdev_indev_deps="linux_fb_h"
2635 fbdev_outdev_deps="linux_fb_h"
2636 gdigrab_indev_deps="CreateDIBSection"
2637 gdigrab_indev_extralibs="-lgdi32"
2638 gdigrab_indev_select="bmp_decoder"
2639 iec61883_indev_deps="libiec61883"
2640 jack_indev_deps="jack_jack_h sem_timedwait"
2641 lavfi_indev_deps="avfilter"
2642 libcdio_indev_deps="libcdio"
2643 libdc1394_indev_deps="libdc1394"
2644 libv4l2_indev_deps="libv4l2"
2645 openal_indev_deps="openal"
2646 opengl_outdev_deps="opengl"
2647 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2648 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2649 pulse_indev_deps="libpulse"
2650 pulse_outdev_deps="libpulse"
2651 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2652 qtkit_indev_select="qtkit"
2653 sdl_outdev_deps="sdl"
2654 sndio_indev_deps="sndio_h"
2655 sndio_outdev_deps="sndio_h"
2656 v4l_indev_deps="linux_videodev_h"
2657 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2658 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2659 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2660 vfwcap_indev_extralibs="-lavicap32"
2661 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2662 xv_outdev_extralibs="-lXv -lX11 -lXext"
2663 x11grab_indev_deps="x11grab"
2664 x11grab_xcb_indev_deps="libxcb"
2665
2666 # protocols
2667 async_protocol_deps="pthreads"
2668 bluray_protocol_deps="libbluray"
2669 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2670 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2671 ffrtmpcrypt_protocol_select="tcp_protocol"
2672 ffrtmphttp_protocol_deps="!librtmp_protocol"
2673 ffrtmphttp_protocol_select="http_protocol"
2674 ftp_protocol_select="tcp_protocol"
2675 gopher_protocol_select="network"
2676 http_protocol_select="tcp_protocol"
2677 httpproxy_protocol_select="tcp_protocol"
2678 https_protocol_select="tls_protocol"
2679 icecast_protocol_select="http_protocol"
2680 librtmp_protocol_deps="librtmp"
2681 librtmpe_protocol_deps="librtmp"
2682 librtmps_protocol_deps="librtmp"
2683 librtmpt_protocol_deps="librtmp"
2684 librtmpte_protocol_deps="librtmp"
2685 libsmbclient_protocol_deps="libsmbclient gplv3"
2686 libssh_protocol_deps="libssh"
2687 mmsh_protocol_select="http_protocol"
2688 mmst_protocol_select="network"
2689 rtmp_protocol_deps="!librtmp_protocol"
2690 rtmp_protocol_select="tcp_protocol"
2691 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2692 rtmps_protocol_deps="!librtmp_protocol"
2693 rtmps_protocol_select="tls_protocol"
2694 rtmpt_protocol_select="ffrtmphttp_protocol"
2695 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2696 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2697 rtp_protocol_select="udp_protocol"
2698 sctp_protocol_deps="struct_sctp_event_subscribe"
2699 sctp_protocol_select="network"
2700 srtp_protocol_select="rtp_protocol"
2701 tcp_protocol_select="network"
2702 tls_gnutls_protocol_deps="gnutls !tls_securetransport_protocol"
2703 tls_gnutls_protocol_select="tcp_protocol"
2704 tls_openssl_protocol_deps="openssl !tls_securetransport_protocol !tls_gnutls_protocol"
2705 tls_openssl_protocol_select="tcp_protocol"
2706 tls_securetransport_protocol_deps="securetransport"
2707 tls_securetransport_protocol_select="tcp_protocol"
2708 tls_protocol_deps_any="tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2709 udp_protocol_select="network"
2710 udplite_protocol_select="network"
2711 unix_protocol_deps="sys_un_h"
2712 unix_protocol_select="network"
2713
2714 # filters
2715 amovie_filter_deps="avcodec avformat"
2716 aresample_filter_deps="swresample"
2717 ass_filter_deps="libass"
2718 asyncts_filter_deps="avresample"
2719 atempo_filter_deps="avcodec"
2720 atempo_filter_select="rdft"
2721 azmq_filter_deps="libzmq"
2722 blackframe_filter_deps="gpl"
2723 boxblur_filter_deps="gpl"
2724 bs2b_filter_deps="libbs2b"
2725 colormatrix_filter_deps="gpl"
2726 cover_rect_filter_deps="avcodec avformat gpl"
2727 cropdetect_filter_deps="gpl"
2728 delogo_filter_deps="gpl"
2729 deshake_filter_select="pixelutils"
2730 drawtext_filter_deps="libfreetype"
2731 dynaudnorm_filter_deps="copysign erf"
2732 ebur128_filter_deps="gpl"
2733 eq_filter_deps="gpl"
2734 fftfilt_filter_deps="avcodec"
2735 fftfilt_filter_select="rdft"
2736 flite_filter_deps="libflite"
2737 find_rect_filter_deps="avcodec avformat gpl"
2738 frei0r_filter_deps="frei0r dlopen"
2739 frei0r_src_filter_deps="frei0r dlopen"
2740 fspp_filter_deps="gpl"
2741 geq_filter_deps="gpl"
2742 histeq_filter_deps="gpl"
2743 hqdn3d_filter_deps="gpl"
2744 interlace_filter_deps="gpl"
2745 kerndeint_filter_deps="gpl"
2746 ladspa_filter_deps="ladspa dlopen"
2747 mcdeint_filter_deps="avcodec gpl"
2748 movie_filter_deps="avcodec avformat"
2749 mpdecimate_filter_deps="gpl"
2750 mpdecimate_filter_select="pixelutils"
2751 mptestsrc_filter_deps="gpl"
2752 negate_filter_deps="lut_filter"
2753 perspective_filter_deps="gpl"
2754 pp7_filter_deps="gpl"
2755 ocv_filter_deps="libopencv"
2756 owdenoise_filter_deps="gpl"
2757 pan_filter_deps="swresample"
2758 phase_filter_deps="gpl"
2759 pp_filter_deps="gpl postproc"
2760 pullup_filter_deps="gpl"
2761 removelogo_filter_deps="avcodec avformat swscale"
2762 repeatfields_filter_deps="gpl"
2763 resample_filter_deps="avresample"
2764 sab_filter_deps="gpl swscale"
2765 scale_filter_deps="swscale"
2766 select_filter_select="pixelutils"
2767 smartblur_filter_deps="gpl swscale"
2768 showcqt_filter_deps="avcodec"
2769 showcqt_filter_select="fft"
2770 showspectrum_filter_deps="avcodec"
2771 showspectrum_filter_select="rdft"
2772 spp_filter_deps="gpl avcodec"
2773 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2774 stereo3d_filter_deps="gpl"
2775 subtitles_filter_deps="avformat avcodec libass"
2776 super2xsai_filter_deps="gpl"
2777 tinterlace_filter_deps="gpl"
2778 vidstabdetect_filter_deps="libvidstab"
2779 vidstabtransform_filter_deps="libvidstab"
2780 pixfmts_super2xsai_test_deps="super2xsai_filter"
2781 tinterlace_merge_test_deps="tinterlace_filter"
2782 tinterlace_pad_test_deps="tinterlace_filter"
2783 uspp_filter_deps="gpl avcodec"
2784 zmq_filter_deps="libzmq"
2785 zoompan_filter_deps="swscale"
2786
2787 # examples
2788 avio_reading="avformat avcodec avutil"
2789 avio_list_dir="avformat avutil"
2790 avcodec_example_deps="avcodec avutil"
2791 decoding_encoding_example_deps="avcodec avformat avutil"
2792 demuxing_decoding_example_deps="avcodec avformat avutil"
2793 extract_mvs_example_deps="avcodec avformat avutil"
2794 filter_audio_example_deps="avfilter avutil"
2795 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2796 filtering_video_example_deps="avfilter avcodec avformat avutil"
2797 metadata_example_deps="avformat avutil"
2798 muxing_example_deps="avcodec avformat avutil swscale"
2799 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2800 remuxing_example_deps="avcodec avformat avutil"
2801 resampling_audio_example_deps="avutil swresample"
2802 scaling_video_example_deps="avutil swscale"
2803 transcode_aac_example_deps="avcodec avformat swresample"
2804 transcoding_example_deps="avfilter avcodec avformat avutil"
2805
2806 # libraries, in linking order
2807 avcodec_deps="avutil"
2808 avdevice_deps="avformat avcodec avutil"
2809 avfilter_deps="avutil"
2810 avformat_deps="avcodec avutil"
2811 avresample_deps="avutil"
2812 postproc_deps="avutil gpl"
2813 swresample_deps="avutil"
2814 swscale_deps="avutil"
2815
2816 # programs
2817 ffmpeg_deps="avcodec avfilter avformat swresample"
2818 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2819                null_filter
2820                setpts_filter trim_filter"
2821 ffplay_deps="avcodec avformat swscale swresample sdl"
2822 ffplay_libs='$sdl_libs'
2823 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2824 ffprobe_deps="avcodec avformat"
2825 ffserver_deps="avformat fork sarestart"
2826 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2827
2828 # documentation
2829 podpages_deps="perl"
2830 manpages_deps="perl pod2man"
2831 htmlpages_deps="perl"
2832 htmlpages_deps_any="makeinfo_html texi2html"
2833 txtpages_deps="perl makeinfo"
2834 doc_deps_any="manpages htmlpages podpages txtpages"
2835
2836 # default parameters
2837
2838 logfile="config.log"
2839
2840 # installation paths
2841 prefix_default="/usr/local"
2842 bindir_default='${prefix}/bin'
2843 datadir_default='${prefix}/share/ffmpeg'
2844 docdir_default='${prefix}/share/doc/ffmpeg'
2845 incdir_default='${prefix}/include'
2846 libdir_default='${prefix}/lib'
2847 mandir_default='${prefix}/share/man'
2848
2849 # toolchain
2850 ar_default="ar"
2851 cc_default="gcc"
2852 cxx_default="g++"
2853 host_cc_default="gcc"
2854 cp_f="cp -f"
2855 doxygen_default="doxygen"
2856 install="install"
2857 ln_s="ln -s -f"
2858 nm_default="nm -g"
2859 objformat="elf"
2860 pkg_config_default=pkg-config
2861 ranlib_default="ranlib"
2862 strip_default="strip"
2863 yasmexe_default="yasm"
2864 windres_default="windres"
2865
2866 # OS
2867 target_os_default=$(tolower $(uname -s))
2868 host_os=$target_os_default
2869
2870 # machine
2871 if test "$target_os_default" = aix; then
2872     arch_default=$(uname -p)
2873     strip_default="strip -X32_64"
2874 else
2875     arch_default=$(uname -m)
2876 fi
2877 cpu="generic"
2878 intrinsics="none"
2879
2880 # configurable options
2881 enable $PROGRAM_LIST
2882 enable $DOCUMENT_LIST
2883 enable $EXAMPLE_LIST
2884 enable $(filter_out avresample $LIBRARY_LIST)
2885 enable stripping
2886
2887 enable asm
2888 enable debug
2889 enable doc
2890 enable faan faandct faanidct
2891 enable optimizations
2892 enable runtime_cpudetect
2893 enable safe_bitstream_reader
2894 enable static
2895 enable swscale_alpha
2896 enable valgrind_backtrace
2897
2898 sws_max_filter_size_default=256
2899 set_default sws_max_filter_size
2900
2901 # Enable hwaccels by default.
2902 enable d3d11va dxva2 vaapi vda vdpau xvmc
2903 enable xlib
2904
2905 # build settings
2906 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2907 LIBPREF="lib"
2908 LIBSUF=".a"
2909 FULLNAME='$(NAME)$(BUILDSUF)'
2910 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2911 SLIBPREF="lib"
2912 SLIBSUF=".so"
2913 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2914 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2915 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2916 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2917 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2918 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2919
2920 asflags_filter=echo
2921 cflags_filter=echo
2922 ldflags_filter=echo
2923
2924 AS_C='-c'
2925 AS_O='-o $@'
2926 CC_C='-c'
2927 CC_E='-E -o $@'
2928 CC_O='-o $@'
2929 CXX_C='-c'
2930 CXX_O='-o $@'
2931 LD_O='-o $@'
2932 LD_LIB='-l%'
2933 LD_PATH='-L'
2934 HOSTCC_C='-c'
2935 HOSTCC_E='-E -o $@'
2936 HOSTCC_O='-o $@'
2937 HOSTLD_O='-o $@'
2938
2939 host_libs='-lm'
2940 host_cflags_filter=echo
2941 host_ldflags_filter=echo
2942
2943 target_path='$(CURDIR)'
2944
2945 # since the object filename is not given with the -MM flag, the compiler
2946 # is only able to print the basename, and we must add the path ourselves
2947 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2948 DEPFLAGS='-MM'
2949
2950 # find source path
2951 if test -f configure; then
2952     source_path=.
2953 else
2954     source_path=$(cd $(dirname "$0"); pwd)
2955     echo "$source_path" | grep -q '[[:blank:]]' &&
2956         die "Out of tree builds are impossible with whitespace in source path."
2957     test -e "$source_path/config.h" &&
2958         die "Out of tree builds are impossible with config.h in source dir."
2959 fi
2960
2961 for v in "$@"; do
2962     r=${v#*=}
2963     l=${v%"$r"}
2964     r=$(sh_quote "$r")
2965     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2966 done
2967
2968 find_things(){
2969     thing=$1
2970     pattern=$2
2971     file=$source_path/$3
2972     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2973 }
2974
2975 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2976 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2977 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2978 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2979 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2980 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2981 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2982 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2983 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2984 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2985 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2986
2987 ALL_COMPONENTS="
2988     $BSF_LIST
2989     $DECODER_LIST
2990     $DEMUXER_LIST
2991     $ENCODER_LIST
2992     $FILTER_LIST
2993     $HWACCEL_LIST
2994     $INDEV_LIST
2995     $MUXER_LIST
2996     $OUTDEV_LIST
2997     $PARSER_LIST
2998     $PROTOCOL_LIST
2999 "
3000
3001 for n in $COMPONENT_LIST; do
3002     v=$(toupper ${n%s})_LIST
3003     eval enable \$$v
3004     eval ${n}_if_any="\$$v"
3005 done
3006
3007 enable $ARCH_EXT_LIST
3008
3009 die_unknown(){
3010     echo "Unknown option \"$1\"."
3011     echo "See $0 --help for available options."
3012     exit 1
3013 }
3014
3015 print_3_columns() {
3016     cat | tr ' ' '\n' | sort | pr -r -3 -t
3017 }
3018
3019 show_list() {
3020     suffix=_$1
3021     shift
3022     echo $* | sed s/$suffix//g | print_3_columns
3023     exit 0
3024 }
3025
3026 rand_list(){
3027     IFS=', '
3028     set -- $*
3029     unset IFS
3030     for thing; do
3031         comp=${thing%:*}
3032         prob=${thing#$comp}
3033         prob=${prob#:}
3034         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3035         echo "prob ${prob:-0.5}"
3036         printf '%s\n' $comp
3037     done
3038 }
3039
3040 do_random(){
3041     action=$1
3042     shift
3043     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3044     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3045 }
3046
3047 for opt do
3048     optval="${opt#*=}"
3049     case "$opt" in
3050         --extra-ldflags=*)
3051             add_ldflags $optval
3052         ;;
3053         --extra-ldexeflags=*)
3054             add_ldexeflags $optval
3055         ;;
3056         --extra-ldlibflags=*)
3057             add_ldlibflags $optval
3058         ;;
3059         --extra-libs=*)
3060             add_extralibs $optval
3061         ;;
3062         --disable-devices)
3063             disable $INDEV_LIST $OUTDEV_LIST
3064         ;;
3065         --enable-debug=*)
3066             debuglevel="$optval"
3067         ;;
3068         --disable-programs)
3069             disable $PROGRAM_LIST
3070         ;;
3071         --disable-everything)
3072             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3073         ;;
3074         --disable-all)
3075             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3076             disable $LIBRARY_LIST $PROGRAM_LIST doc
3077         ;;
3078         --enable-random|--disable-random)
3079             action=${opt%%-random}
3080             do_random ${action#--} $COMPONENT_LIST
3081         ;;
3082         --enable-random=*|--disable-random=*)
3083             action=${opt%%-random=*}
3084             do_random ${action#--} $optval
3085         ;;
3086         --enable-*=*|--disable-*=*)
3087             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3088             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3089             eval list=\$$(toupper $thing)_LIST
3090             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3091             list=$(filter "$name" $list)
3092             [ "$list" = "" ] && warn "Option $opt did not match anything"
3093             $action $list
3094         ;;
3095         --enable-?*|--disable-?*)
3096             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3097             if is_in $option $COMPONENT_LIST; then
3098                 test $action = disable && action=unset
3099                 eval $action \$$(toupper ${option%s})_LIST
3100             elif is_in $option $CMDLINE_SELECT; then
3101                 $action $option
3102             else
3103                 die_unknown $opt
3104             fi
3105         ;;
3106         --list-*)
3107             NAME="${opt#--list-}"
3108             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3109             NAME=${NAME%s}
3110             eval show_list $NAME \$$(toupper $NAME)_LIST
3111         ;;
3112         --help|-h) show_help
3113         ;;
3114         --fatal-warnings) enable fatal_warnings
3115         ;;
3116         *)
3117             optname="${opt%%=*}"
3118             optname="${optname#--}"
3119             optname=$(echo "$optname" | sed 's/-/_/g')
3120             if is_in $optname $CMDLINE_SET; then
3121                 eval $optname='$optval'
3122             elif is_in $optname $CMDLINE_APPEND; then
3123                 append $optname "$optval"
3124             else
3125                 die_unknown $opt
3126             fi
3127         ;;
3128     esac
3129 done
3130
3131 for e in $env; do
3132     eval "export $e"
3133 done
3134
3135 disabled logging && logfile=/dev/null
3136
3137 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3138 set >> $logfile
3139
3140 test -n "$valgrind" && toolchain="valgrind-memcheck"
3141
3142 case "$toolchain" in
3143     clang-asan)
3144         cc_default="clang"
3145         add_cflags  -fsanitize=address
3146         add_ldflags -fsanitize=address
3147     ;;
3148     clang-tsan)
3149         cc_default="clang"
3150         add_cflags  -fsanitize=thread -pie
3151         add_ldflags -fsanitize=thread -pie
3152     ;;
3153     clang-usan)
3154         cc_default="clang"
3155         add_cflags  -fsanitize=undefined
3156         add_ldflags -fsanitize=undefined
3157     ;;
3158     gcc-asan)
3159         cc_default="gcc"
3160         add_cflags  -fsanitize=address
3161         add_ldflags -fsanitize=address
3162     ;;
3163     gcc-tsan)
3164         cc_default="gcc"
3165         add_cflags  -fsanitize=thread -pie -fPIC
3166         add_ldflags -fsanitize=thread -pie -fPIC
3167     ;;
3168     gcc-usan)
3169         cc_default="gcc"
3170         add_cflags  -fsanitize=undefined
3171         add_ldflags -fsanitize=undefined
3172     ;;
3173     valgrind-massif)
3174         target_exec_default=${valgrind:-"valgrind"}
3175         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"
3176     ;;
3177     valgrind-memcheck)
3178         target_exec_default=${valgrind:-"valgrind"}
3179         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3180     ;;
3181     msvc)
3182         # Check whether the current MSVC version needs the C99 converter.
3183         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3184         # support enough of C99 to build ffmpeg. Default to the new
3185         # behaviour if the regexp was unable to match anything, since this
3186         # successfully parses the version number of existing supported
3187         # versions that require the converter (MSVC 2010 and 2012).
3188         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3189         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3190             cc_default="cl"
3191         else
3192             cc_default="c99wrap cl"
3193         fi
3194         ld_default="$source_path/compat/windows/mslink"
3195         nm_default="dumpbin -symbols"
3196         ar_default="lib"
3197         target_os_default="win32"
3198         # Use a relative path for TMPDIR. This makes sure all the
3199         # ffconf temp files are written with a relative path, avoiding
3200         # issues with msys/win32 path conversion for MSVC parameters
3201         # such as -Fo<file> or -out:<file>.
3202         TMPDIR=.
3203     ;;
3204     icl)
3205         cc_default="icl"
3206         ld_default="xilink"
3207         nm_default="dumpbin -symbols"
3208         ar_default="xilib"
3209         target_os_default="win32"
3210         TMPDIR=.
3211     ;;
3212     gcov)
3213         add_cflags  -fprofile-arcs -ftest-coverage
3214         add_ldflags -fprofile-arcs -ftest-coverage
3215     ;;
3216     hardened)
3217         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3218         add_cflags   -fno-strict-overflow -fstack-protector-all
3219         add_ldflags  -Wl,-z,relro -Wl,-z,now
3220     ;;
3221     ?*)
3222         die "Unknown toolchain $toolchain"
3223     ;;
3224 esac
3225
3226 test -n "$cross_prefix" && enable cross_compile
3227
3228 if enabled cross_compile; then
3229     test -n "$arch" && test -n "$target_os" ||
3230         die "Must specify target arch and OS when cross-compiling"
3231 fi
3232
3233 ar_default="${cross_prefix}${ar_default}"
3234 cc_default="${cross_prefix}${cc_default}"
3235 cxx_default="${cross_prefix}${cxx_default}"
3236 nm_default="${cross_prefix}${nm_default}"
3237 pkg_config_default="${cross_prefix}${pkg_config_default}"
3238 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3239     ranlib_default="${cross_prefix}${ranlib_default} -D"
3240 else
3241     ranlib_default="${cross_prefix}${ranlib_default}"
3242 fi
3243 strip_default="${cross_prefix}${strip_default}"
3244 windres_default="${cross_prefix}${windres_default}"
3245
3246 sysinclude_default="${sysroot}/usr/include"
3247
3248 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3249     target_exec target_os yasmexe
3250 enabled cross_compile || host_cc_default=$cc
3251 set_default host_cc
3252
3253 pkg_config_fail_message=""
3254 if ! $pkg_config --version >/dev/null 2>&1; then
3255     warn "$pkg_config not found, library detection may fail."
3256     pkg_config=false
3257 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3258     pkg_config_fail_message="
3259 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3260 fi
3261
3262 if test $doxygen != $doxygen_default && \
3263   ! $doxygen --version >/dev/null 2>&1; then
3264     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3265 fi
3266
3267 exesuf() {
3268     case $1 in
3269         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3270     esac
3271 }
3272
3273 EXESUF=$(exesuf $target_os)
3274 HOSTEXESUF=$(exesuf $host_os)
3275
3276 # set temporary file name
3277 : ${TMPDIR:=$TEMPDIR}
3278 : ${TMPDIR:=$TMP}
3279 : ${TMPDIR:=/tmp}
3280
3281 if [ -n "$tempprefix" ] ; then
3282     mktemp(){
3283         echo $tempprefix.${HOSTNAME}.${UID}
3284     }
3285 elif ! check_cmd mktemp -u XXXXXX; then
3286     # simple replacement for missing mktemp
3287     # NOT SAFE FOR GENERAL USE
3288     mktemp(){
3289         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3290     }
3291 fi
3292
3293 tmpfile(){
3294     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3295         (set -C; exec > $tmp) 2>/dev/null ||
3296         die "Unable to create temporary file in $TMPDIR."
3297     append TMPFILES $tmp
3298     eval $1=$tmp
3299 }
3300
3301 trap 'rm -f -- $TMPFILES' EXIT
3302
3303 tmpfile TMPASM .asm
3304 tmpfile TMPC   .c
3305 tmpfile TMPCPP .cpp
3306 tmpfile TMPE   $EXESUF
3307 tmpfile TMPH   .h
3308 tmpfile TMPM   .m
3309 tmpfile TMPO   .o
3310 tmpfile TMPS   .S
3311 tmpfile TMPSH  .sh
3312 tmpfile TMPV   .ver
3313
3314 unset -f mktemp
3315
3316 chmod +x $TMPE
3317
3318 # make sure we can execute files in $TMPDIR
3319 cat > $TMPSH 2>> $logfile <<EOF
3320 #! /bin/sh
3321 EOF
3322 chmod +x $TMPSH >> $logfile 2>&1
3323 if ! $TMPSH >> $logfile 2>&1; then
3324     cat <<EOF
3325 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3326 variable to another directory and make sure that it is not mounted noexec.
3327 EOF
3328     die "Sanity test failed."
3329 fi
3330
3331 armasm_flags(){
3332     for flag; do
3333         case $flag in
3334             # Filter out MSVC cl.exe options from cflags that shouldn't
3335             # be passed to gas-preprocessor
3336             -M[TD]*)                                            ;;
3337             *)                  echo $flag                      ;;
3338         esac
3339    done
3340 }
3341
3342 ccc_flags(){
3343     for flag; do
3344         case $flag in
3345             -std=c99)           echo -c99                       ;;
3346             -mcpu=*)            echo -arch ${flag#*=}           ;;
3347             -mieee)             echo -ieee                      ;;
3348             -O*|-fast)          echo $flag                      ;;
3349             -fno-math-errno)    echo -assume nomath_errno       ;;
3350             -g)                 echo -g3                        ;;
3351             -Wall)              echo -msg_enable level2         ;;
3352             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3353             -Wl,*)              echo $flag                      ;;
3354             -f*|-W*)                                            ;;
3355             *)                  echo $flag                      ;;
3356         esac
3357    done
3358 }
3359
3360 cparser_flags(){
3361     for flag; do
3362         case $flag in
3363             -Wno-switch)             echo -Wno-switch-enum ;;
3364             -Wno-format-zero-length) ;;
3365             -Wdisabled-optimization) ;;
3366             -Wno-pointer-sign)       echo -Wno-other ;;
3367             *)                       echo $flag ;;
3368         esac
3369     done
3370 }
3371
3372 msvc_common_flags(){
3373     for flag; do
3374         case $flag in
3375             # In addition to specifying certain flags under the compiler
3376             # specific filters, they must be specified here as well or else the
3377             # generic catch all at the bottom will print the original flag.
3378             -Wall)                ;;
3379             -std=c99)             ;;
3380             # Common flags
3381             -fomit-frame-pointer) ;;
3382             -g)                   echo -Z7 ;;
3383             -fno-math-errno)      ;;
3384             -fno-common)          ;;
3385             -fno-signed-zeros)    ;;
3386             -fPIC)                ;;
3387             -mthumb)              ;;
3388             -march=*)             ;;
3389             -lz)                  echo zlib.lib ;;
3390             -lavifil32)           echo vfw32.lib ;;
3391             -lavicap32)           echo vfw32.lib user32.lib ;;
3392             -l*)                  echo ${flag#-l}.lib ;;
3393             -LARGEADDRESSAWARE)   echo $flag ;;
3394             -L*)                  echo -libpath:${flag#-L} ;;
3395             *)                    echo $flag ;;
3396         esac
3397     done
3398 }
3399
3400 msvc_flags(){
3401     msvc_common_flags "$@"
3402     for flag; do
3403         case $flag in
3404             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3405                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3406                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3407                                        -wd4307 \
3408                                        -wd4273 -wd4554 -wd4701 ;;
3409         esac
3410     done
3411 }
3412
3413 icl_flags(){
3414     msvc_common_flags "$@"
3415     for flag; do
3416         case $flag in
3417             # Despite what Intel's documentation says -Wall, which is supported
3418             # on Windows, does enable remarks so disable them here.
3419             -Wall)                echo $flag -Qdiag-disable:remark ;;
3420             -std=c99)             echo -Qstd=c99 ;;
3421             -flto)                echo -ipo ;;
3422         esac
3423     done
3424 }
3425
3426 icc_flags(){
3427     for flag; do
3428         case $flag in
3429             -flto)                echo -ipo ;;
3430             *)                    echo $flag ;;
3431         esac
3432     done
3433 }
3434
3435 pgi_flags(){
3436     for flag; do
3437         case $flag in
3438             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3439             -fomit-frame-pointer) echo -Mnoframe ;;
3440             -g)                   echo -gopt ;;
3441             *)                    echo $flag ;;
3442         esac
3443     done
3444 }
3445
3446 suncc_flags(){
3447     for flag; do
3448         case $flag in
3449             -march=*|-mcpu=*)
3450                 case "${flag#*=}" in
3451                     native)                   echo -xtarget=native       ;;
3452                     v9|niagara)               echo -xarch=sparc          ;;
3453                     ultrasparc)               echo -xarch=sparcvis       ;;
3454                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3455                     i586|pentium)             echo -xchip=pentium        ;;
3456                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3457                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3458                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3459                     pentium4*)          echo -xtarget=pentium4           ;;
3460                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3461                     *-sse3)             echo -xarch=sse3                 ;;
3462                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3463                     bonnell)                   echo -xarch=ssse3         ;;
3464                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3465                     westmere)                  echo -xtarget=westmere    ;;
3466                     silvermont)                echo -xarch=sse4_2        ;;
3467                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3468                     core-avx*|ivybridge|haswell|broadwell)
3469                                                echo -xarch=avx           ;;
3470                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3471                     btver1)                    echo -xarch=amdsse4a      ;;
3472                     btver2|bdver*)             echo -xarch=avx           ;;
3473                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3474                     k8|opteron|athlon64|athlon-fx)
3475                                                echo -xarch=sse2a         ;;
3476                     athlon*)                   echo -xarch=pentium_proa  ;;
3477                 esac
3478                 ;;
3479             -std=c99)             echo -xc99              ;;
3480             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3481             -fPIC)                echo -KPIC -xcode=pic32 ;;
3482             -W*,*)                echo $flag              ;;
3483             -f*-*|-W*|-mimpure-text)                      ;;
3484             -shared)              echo -G                 ;;
3485             *)                    echo $flag              ;;
3486         esac
3487     done
3488 }
3489
3490 tms470_flags(){
3491     for flag; do
3492         case $flag in
3493             -march=*|-mcpu=*)
3494                 case "${flag#*=}" in
3495                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3496                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3497                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3498                     armv6*|arm11*)          echo -mv=6   ;;
3499                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3500                                             echo -mv=5e  ;;
3501                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3502                 esac
3503                 ;;
3504             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3505             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3506             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3507             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3508             -msoft-float)   echo --float_support=vfplib       ;;
3509             -O[0-3]|-mf=*)  echo $flag                        ;;
3510             -g)             echo -g -mn                       ;;
3511             -pds=*)         echo $flag                        ;;
3512             -D*|-I*)        echo $flag                        ;;
3513             --gcc|--abi=*)  echo $flag                        ;;
3514             -me)            echo $flag                        ;;
3515         esac
3516     done
3517 }
3518
3519 probe_cc(){
3520     pfx=$1
3521     _cc=$2
3522
3523     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3524     unset _ld_o _ldflags _ld_lib _ld_path
3525     unset _depflags _DEPCMD _DEPFLAGS
3526     _flags_filter=echo
3527
3528     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3529         true # no-op to avoid reading stdin in following checks
3530     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3531         _type=llvm_gcc
3532         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3533         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3534         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3535         _cflags_speed='-O3'
3536         _cflags_size='-Os'
3537     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3538         _type=gcc
3539         gcc_version=$($_cc --version | head -n1)
3540         gcc_basever=$($_cc -dumpversion)
3541         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3542         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3543         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3544         if ! $_cc -dumpversion | grep -q '^2\.'; then
3545             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3546         fi
3547         _cflags_speed='-O3'
3548         _cflags_size='-Os'
3549     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3550         _type=icc
3551         _ident=$($_cc --version | head -n1)
3552         _depflags='-MMD'
3553         _cflags_speed='-O3'
3554         _cflags_size='-Os'
3555         _cflags_noopt='-O1'
3556         _flags_filter=icc_flags
3557     elif $_cc -v 2>&1 | grep -q xlc; then
3558         _type=xlc
3559         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3560         _cflags_speed='-O5'
3561         _cflags_size='-O5 -qcompact'
3562     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3563         _type=ccc
3564         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3565         _DEPFLAGS='-M'
3566         _cflags_speed='-fast'
3567         _cflags_size='-O1'
3568         _flags_filter=ccc_flags
3569     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3570         test -d "$sysroot" || die "No valid sysroot specified."
3571         _type=armcc
3572         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3573         armcc_conf="$PWD/armcc.conf"
3574         $_cc --arm_linux_configure                 \
3575              --arm_linux_config_file="$armcc_conf" \
3576              --configure_sysroot="$sysroot"        \
3577              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3578              die "Error creating armcc configuration file."
3579         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3580         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3581         as_default="${cross_prefix}gcc"
3582         _depflags='-MMD'
3583         _cflags_speed='-O3'
3584         _cflags_size='-Os'
3585     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3586         _type=tms470
3587         _ident=$($_cc -version | head -n1 | tr -s ' ')
3588         _flags='--gcc --abi=eabi -me'
3589         _cc_e='-ppl -fe=$@'
3590         _cc_o='-fe=$@'
3591         _depflags='-ppa -ppd=$(@:.o=.d)'
3592         _cflags_speed='-O3 -mf=5'
3593         _cflags_size='-O3 -mf=2'
3594         _flags_filter=tms470_flags
3595     elif $_cc -v 2>&1 | grep -q clang; then
3596         _type=clang
3597         _ident=$($_cc --version | head -n1)
3598         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3599         _cflags_speed='-O3'
3600         _cflags_size='-Os'
3601     elif $_cc -V 2>&1 | grep -q Sun; then
3602         _type=suncc
3603         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3604         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3605         _DEPFLAGS='-xM1 -xc99'
3606         _ldflags='-std=c99'
3607         _cflags_speed='-O5'
3608         _cflags_size='-O5 -xspace'
3609         _flags_filter=suncc_flags
3610     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3611         _type=pathscale
3612         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3613         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3614         _cflags_speed='-O2'
3615         _cflags_size='-Os'
3616         _flags_filter='filter_out -Wdisabled-optimization'
3617     elif $_cc -v 2>&1 | grep -q Open64; then
3618         _type=open64
3619         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3620         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3621         _cflags_speed='-O2'
3622         _cflags_size='-Os'
3623         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3624     elif $_cc -V 2>&1 | grep -q Portland; then
3625         _type=pgi
3626         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3627         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3628         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3629         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3630         _cflags_noopt="-O"
3631         _flags_filter=pgi_flags
3632     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3633         _type=armasm
3634         _ident=$($_cc | head -n1)
3635         # 4509: "This form of conditional instruction is deprecated"
3636         _flags="-nologo -ignore 4509"
3637         _flags_filter=armasm_flags
3638     elif $_cc 2>&1 | grep -q Intel; then
3639         _type=icl
3640         _ident=$($_cc 2>&1 | head -n1)
3641         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3642         # Not only is O3 broken on 13.x+ but it is slower on all previous
3643         # versions (tested) as well.
3644         _cflags_speed="-O2"
3645         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3646         if $_cc 2>&1 | grep -q Linker; then
3647             _ld_o='-out:$@'
3648         else
3649             _ld_o='-Fe$@'
3650         fi
3651         _cc_o='-Fo$@'
3652         _cc_e='-P'
3653         _flags_filter=icl_flags
3654         _ld_lib='lib%.a'
3655         _ld_path='-libpath:'
3656         # -Qdiag-error to make icl error when seeing certain unknown arguments
3657         _flags='-nologo -Qdiag-error:4044,10157'
3658         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3659         # with MSVC which enables it by default.
3660         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3661         disable stripping
3662     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3663         _type=msvc
3664         _ident=$($_cc 2>&1 | head -n1)
3665         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3666         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3667         _cflags_speed="-O2"
3668         _cflags_size="-O1"
3669         if $_cc -nologo- 2>&1 | grep -q Linker; then
3670             _ld_o='-out:$@'
3671         else
3672             _ld_o='-Fe$@'
3673         fi
3674         _cc_o='-Fo$@'
3675         _cc_e='-P -Fi$@'
3676         _flags_filter=msvc_flags
3677         _ld_lib='lib%.a'
3678         _ld_path='-libpath:'
3679         _flags='-nologo'
3680         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3681         disable stripping
3682     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3683         _type=cparser
3684         _ident=$($_cc --version | head -n1)
3685         _depflags='-MMD'
3686         _cflags_speed='-O4'
3687         _cflags_size='-O2'
3688         _flags_filter=cparser_flags
3689     fi
3690
3691     eval ${pfx}_type=\$_type
3692     eval ${pfx}_ident=\$_ident
3693 }
3694
3695 set_ccvars(){
3696     eval ${1}_C=\${_cc_c-\${${1}_C}}
3697     eval ${1}_E=\${_cc_e-\${${1}_E}}
3698     eval ${1}_O=\${_cc_o-\${${1}_O}}
3699
3700     if [ -n "$_depflags" ]; then
3701         eval ${1}_DEPFLAGS=\$_depflags
3702     else
3703         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3704         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3705         eval DEP${1}FLAGS=\$_flags
3706     fi
3707 }
3708
3709 probe_cc cc "$cc"
3710 cflags_filter=$_flags_filter
3711 cflags_speed=$_cflags_speed
3712 cflags_size=$_cflags_size
3713 cflags_noopt=$_cflags_noopt
3714 add_cflags $_flags $_cflags
3715 cc_ldflags=$_ldflags
3716 set_ccvars CC
3717
3718 probe_cc hostcc "$host_cc"
3719 host_cflags_filter=$_flags_filter
3720 add_host_cflags  $_flags $_cflags
3721 set_ccvars HOSTCC
3722
3723 test -n "$cc_type" && enable $cc_type ||
3724     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3725
3726 : ${as_default:=$cc}
3727 : ${dep_cc_default:=$cc}
3728 : ${ld_default:=$cc}
3729 : ${host_ld_default:=$host_cc}
3730 set_default ar as dep_cc ld host_ld windres
3731
3732 probe_cc as "$as"
3733 asflags_filter=$_flags_filter
3734 add_asflags $_flags $_cflags
3735 set_ccvars AS
3736
3737 probe_cc ld "$ld"
3738 ldflags_filter=$_flags_filter
3739 add_ldflags $_flags $_ldflags
3740 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3741 LD_O=${_ld_o-$LD_O}
3742 LD_LIB=${_ld_lib-$LD_LIB}
3743 LD_PATH=${_ld_path-$LD_PATH}
3744
3745 probe_cc hostld "$host_ld"
3746 host_ldflags_filter=$_flags_filter
3747 add_host_ldflags $_flags $_ldflags
3748 HOSTLD_O=${_ld_o-$HOSTLD_O}
3749
3750 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3751     probe_cc depcc "$dep_cc"
3752     CCDEP=${_DEPCMD:-$DEPCMD}
3753     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3754     DEPCCFLAGS=$_flags
3755 fi
3756
3757 if $ar 2>&1 | grep -q Microsoft; then
3758     arflags="-nologo"
3759     ar_o='-out:$@'
3760 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3761     arflags="rq"
3762     ar_o='$@'
3763 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3764     arflags='-Xany -r -c'
3765     ar_o='$@'
3766 elif $ar 2>&1 | grep -q "\[D\] "; then
3767     arflags="rcD"
3768     ar_o='$@'
3769 else
3770     arflags="rc"
3771     ar_o='$@'
3772 fi
3773
3774 add_cflags $extra_cflags
3775 add_cxxflags $extra_cxxflags
3776 add_asflags $extra_cflags
3777
3778 if test -n "$sysroot"; then
3779     case "$cc_type" in
3780         gcc|llvm_gcc|clang)
3781             add_cppflags --sysroot="$sysroot"
3782             add_ldflags --sysroot="$sysroot"
3783 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3784             add_cppflags -isysroot "$sysroot"
3785             add_ldflags -isysroot "$sysroot"
3786         ;;
3787         tms470)
3788             add_cppflags -I"$sysinclude"
3789             add_ldflags  --sysroot="$sysroot"
3790         ;;
3791     esac
3792 fi
3793
3794 if test "$cpu" = host; then
3795     enabled cross_compile &&
3796         die "--cpu=host makes no sense when cross-compiling."
3797
3798     case "$cc_type" in
3799         gcc|llvm_gcc)
3800             check_native(){
3801                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3802                 sed -n "/cc1.*$1=/{
3803                             s/.*$1=\\([^ ]*\\).*/\\1/
3804                             p
3805                             q
3806                         }" $TMPE
3807             }
3808             cpu=$(check_native -march || check_native -mcpu)
3809         ;;
3810     esac
3811
3812     test "${cpu:-host}" = host &&
3813         die "--cpu=host not supported with compiler $cc"
3814 fi
3815
3816 # Deal with common $arch aliases
3817 case "$arch" in
3818     aarch64|arm64)
3819         arch="aarch64"
3820     ;;
3821     arm*|iPad*|iPhone*)
3822         arch="arm"
3823     ;;
3824     mips*|IP*)
3825         arch="mips"
3826     ;;
3827     parisc*|hppa*)
3828         arch="parisc"
3829     ;;
3830     "Power Macintosh"|ppc*|powerpc*)
3831         arch="ppc"
3832     ;;
3833     s390|s390x)
3834         arch="s390"
3835     ;;
3836     sh4|sh)
3837         arch="sh4"
3838     ;;
3839     sun4u|sparc*)
3840         arch="sparc"
3841     ;;
3842     tilegx|tile-gx)
3843         arch="tilegx"
3844     ;;
3845     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3846         arch="x86"
3847     ;;
3848 esac
3849
3850 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3851 enable $arch
3852
3853 # Add processor-specific flags
3854 if enabled aarch64; then
3855
3856     case $cpu in
3857         armv*)
3858             cpuflags="-march=$cpu"
3859         ;;
3860         *)
3861             cpuflags="-mcpu=$cpu"
3862         ;;
3863     esac
3864
3865 elif enabled alpha; then
3866
3867     cpuflags="-mcpu=$cpu"
3868
3869 elif enabled arm; then
3870
3871     check_arm_arch() {
3872         check_cpp_condition stddef.h \
3873             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3874             $cpuflags
3875     }
3876
3877     probe_arm_arch() {
3878         if   check_arm_arch 4;        then echo armv4;
3879         elif check_arm_arch 4T;       then echo armv4t;
3880         elif check_arm_arch 5;        then echo armv5;
3881         elif check_arm_arch 5E;       then echo armv5e;
3882         elif check_arm_arch 5T;       then echo armv5t;
3883         elif check_arm_arch 5TE;      then echo armv5te;
3884         elif check_arm_arch 5TEJ;     then echo armv5te;
3885         elif check_arm_arch 6;        then echo armv6;
3886         elif check_arm_arch 6J;       then echo armv6j;
3887         elif check_arm_arch 6K;       then echo armv6k;
3888         elif check_arm_arch 6Z;       then echo armv6z;
3889         elif check_arm_arch 6ZK;      then echo armv6zk;
3890         elif check_arm_arch 6T2;      then echo armv6t2;
3891         elif check_arm_arch 7;        then echo armv7;
3892         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3893         elif check_arm_arch 7S;       then echo armv7-a;
3894         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3895         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3896         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3897         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3898         fi
3899     }
3900
3901     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3902
3903     case $cpu in
3904         armv*)
3905             cpuflags="-march=$cpu"
3906             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3907         ;;
3908         *)
3909             cpuflags="-mcpu=$cpu"
3910             case $cpu in
3911                 cortex-a*)                               subarch=armv7a  ;;
3912                 cortex-r*)                               subarch=armv7r  ;;
3913                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3914                 arm11*)                                  subarch=armv6   ;;
3915                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3916                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3917                 *)                             subarch=$(probe_arm_arch) ;;
3918             esac
3919         ;;
3920     esac
3921
3922     case "$subarch" in
3923         armv5t*)    enable fast_clz                ;;
3924         armv[6-8]*)
3925             enable fast_clz
3926             disabled fast_unaligned || enable fast_unaligned
3927             ;;
3928     esac
3929
3930 elif enabled avr32; then
3931
3932     case $cpu in
3933         ap7[02]0[0-2])
3934             subarch="avr32_ap"
3935             cpuflags="-mpart=$cpu"
3936         ;;
3937         ap)
3938             subarch="avr32_ap"
3939             cpuflags="-march=$cpu"
3940         ;;
3941         uc3[ab]*)
3942             subarch="avr32_uc"
3943             cpuflags="-mcpu=$cpu"
3944         ;;
3945         uc)
3946             subarch="avr32_uc"
3947             cpuflags="-march=$cpu"
3948         ;;
3949     esac
3950
3951 elif enabled bfin; then
3952
3953     cpuflags="-mcpu=$cpu"
3954
3955 elif enabled mips; then
3956
3957     cpuflags="-march=$cpu"
3958
3959     case $cpu in
3960         24kc)
3961             disable mips32r5
3962             disable mips64r6
3963             disable mipsfpu
3964             disable mipsdspr1
3965             disable mipsdspr2
3966             disable msa
3967         ;;
3968         24kf*)
3969             disable mips32r5
3970             disable mips64r6
3971             disable mipsdspr1
3972             disable mipsdspr2
3973             disable msa
3974         ;;
3975         24kec|34kc|1004kc)
3976             disable mips32r5
3977             disable mips64r6
3978             disable mipsfpu
3979             disable mipsdspr2
3980             disable msa
3981         ;;
3982         24kef*|34kf*|1004kf*)
3983             disable mips32r5
3984             disable mips64r6
3985             disable mipsdspr2
3986             disable msa
3987         ;;
3988         74kc)
3989             disable mips32r5
3990             disable mips64r6
3991             disable mipsfpu
3992             disable msa
3993         ;;
3994         74kf)
3995             disable mips32r5
3996             disable mips64r6
3997             disable msa
3998         ;;
3999         p5600)
4000             disable mips64r6
4001             disable mipsdspr1
4002             disable mipsdspr2
4003
4004             check_cflags "-mtune=p5600"
4005         ;;
4006         i6400)
4007             disable mips32r5
4008             disable mipsdspr1
4009             disable mipsdspr2
4010             disable mipsfpu
4011
4012             check_cflags "-mtune=i6400 -mabi=64"
4013             check_ldflags "-mabi=64"
4014         ;;
4015         loongson*)
4016             disable mipsfpu
4017             disable mips32r2
4018             disable mips32r5
4019             disable mips64r6
4020             disable mipsdspr1
4021             disable mipsdspr2
4022             disable msa
4023             enable local_aligned_8 local_aligned_16 local_aligned_32
4024             enable simd_align_16
4025             enable fast_64bit
4026             enable fast_clz
4027             enable fast_cmov
4028             enable fast_unaligned
4029             disable aligned_stack
4030             case $cpu in
4031                 loongson3*)
4032                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4033                 ;;
4034                 loongson2e)
4035                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4036                 ;;
4037                 loongson2f)
4038                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4039                 ;;
4040             esac
4041         ;;
4042         generic)
4043             disable mips32r5
4044             disable mips64r6
4045             disable msa
4046         ;;
4047     esac
4048
4049 elif enabled ppc; then
4050
4051     disable ldbrx
4052
4053     case $(tolower $cpu) in
4054         601|ppc601|powerpc601)
4055             cpuflags="-mcpu=601"
4056             disable altivec
4057         ;;
4058         603*|ppc603*|powerpc603*)
4059             cpuflags="-mcpu=603"
4060             disable altivec
4061         ;;
4062         604*|ppc604*|powerpc604*)
4063             cpuflags="-mcpu=604"
4064             disable altivec
4065         ;;
4066         g3|75*|ppc75*|powerpc75*)
4067             cpuflags="-mcpu=750"
4068             disable altivec
4069         ;;