lavfi: Add coreimage filter for GPU based image filtering on OSX.
[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   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
112   --enable-raise-major     increase major version numbers in sonames [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat 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   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]
198   --enable-avisynth        enable reading of AviSynth script files [no]
199   --disable-bzlib          disable bzlib [autodetect]
200   --enable-cuda            enable dynamically linked CUDA [no]
201   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
202   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
203   --enable-frei0r          enable frei0r video filtering [no]
204   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
205                            if openssl, librtmp or gmp is not used [no]
206   --enable-gmp             enable gmp, needed for rtmp(t)e support
207                            if openssl or librtmp is not used [no]
208   --enable-gnutls          enable gnutls, needed for https support
209                            if openssl is not used [no]
210   --disable-iconv          disable iconv [autodetect]
211   --enable-jni             enable JNI support [no]
212   --enable-ladspa          enable LADSPA audio filtering [no]
213   --enable-libass          enable libass subtitles rendering,
214                            needed for subtitles and ass filter [no]
215   --enable-libbluray       enable BluRay reading using libbluray [no]
216   --enable-libbs2b         enable bs2b DSP library [no]
217   --enable-libcaca         enable textual display using libcaca [no]
218   --enable-libcelt         enable CELT decoding via libcelt [no]
219   --enable-libcdio         enable audio CD grabbing with libcdio [no]
220   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
221                            and libraw1394 [no]
222   --enable-libdcadec       enable DCA decoding via libdcadec [no]
223   --enable-libfaac         enable AAC encoding via libfaac [no]
224   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
225   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
226   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
227   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
228   --enable-libgme          enable Game Music Emu via libgme [no]
229   --enable-libgsm          enable GSM de/encoding via libgsm [no]
230   --enable-libiec61883     enable iec61883 via libiec61883 [no]
231   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
232   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
233   --enable-libmfx          enable HW acceleration through libmfx
234   --enable-libmodplug      enable ModPlug via libmodplug [no]
235   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
236   --enable-libnut          enable NUT (de)muxing via libnut,
237                            native (de)muxer exists [no]
238   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
239   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
240   --enable-libopencv       enable video filtering via libopencv [no]
241   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
242   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
243   --enable-libopus         enable Opus de/encoding via libopus [no]
244   --enable-libpulse        enable Pulseaudio input via libpulse [no]
245   --enable-librubberband   enable rubberband needed for rubberband filter [no]
246   --enable-librtmp         enable RTMP[E] support via librtmp [no]
247   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
248   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
249   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
250   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
251   --enable-libsoxr         enable Include libsoxr resampling [no]
252   --enable-libspeex        enable Speex de/encoding via libspeex [no]
253   --enable-libssh          enable SFTP protocol via libssh [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
258   --enable-libv4l2         enable libv4l2/v4l-utils [no]
259   --enable-libvidstab      enable video stabilization using vid.stab [no]
260   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
261   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
262                            native implementation exists [no]
263   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
264   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
265   --enable-libwebp         enable WebP encoding via libwebp [no]
266   --enable-libx264         enable H.264 encoding via x264 [no]
267   --enable-libx265         enable HEVC encoding via x265 [no]
268   --enable-libxavs         enable AVS encoding via xavs [no]
269   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
270   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
271   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
272   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
273   --enable-libxvid         enable Xvid encoding via xvidcore,
274                            native MPEG-4/Xvid encoder exists [no]
275   --enable-libzimg         enable z.lib, needed for zscale filter [no]
276   --enable-libzmq          enable message passing via libzmq [no]
277   --enable-libzvbi         enable teletext support via libzvbi [no]
278   --disable-lzma           disable lzma [autodetect]
279   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
280   --enable-mediacodec      enable Android MediaCodec support [no]
281   --enable-mmal            enable decoding via MMAL [no]
282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
283   --enable-nvenc           enable NVIDIA NVENC support [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl            disable sdl [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --disable-videotoolbox   disable VideoToolbox code [autodetect]
295   --enable-x11grab         enable X11 grabbing (legacy) [no]
296   --disable-xlib           disable xlib [autodetect]
297   --disable-zlib           disable zlib [autodetect]
298
299 Toolchain options:
300   --arch=ARCH              select architecture [$arch]
301   --cpu=CPU                select the minimum required CPU (affects
302                            instruction selection, may crash on older CPUs)
303   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
304   --progs-suffix=SUFFIX    program name suffix []
305   --enable-cross-compile   assume a cross-compiler is used
306   --sysroot=PATH           root of cross-build tree
307   --sysinclude=PATH        location of cross-build system headers
308   --target-os=OS           compiler targets OS [$target_os]
309   --target-exec=CMD        command to run executables on target
310   --target-path=DIR        path to view of build directory on target
311   --target-samples=DIR     path to samples directory on target
312   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
313   --toolchain=NAME         set tool defaults according to NAME
314   --nm=NM                  use nm tool NM [$nm_default]
315   --ar=AR                  use archive tool AR [$ar_default]
316   --as=AS                  use assembler AS [$as_default]
317   --strip=STRIP            use strip tool STRIP [$strip_default]
318   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
319   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
320   --cc=CC                  use C compiler CC [$cc_default]
321   --cxx=CXX                use C compiler CXX [$cxx_default]
322   --objcc=OCC              use ObjC compiler OCC [$cc_default]
323   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
324   --ld=LD                  use linker LD [$ld_default]
325   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
326   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
327   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
328   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
329   --host-cc=HOSTCC         use host C compiler HOSTCC
330   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
331   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
332   --host-ld=HOSTLD         use host linker HOSTLD
333   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
334   --host-libs=HLIBS        use libs HLIBS when linking for host
335   --host-os=OS             compiler host OS [$target_os]
336   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
337   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
338   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
339   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
340   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
341   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
342   --extra-libs=ELIBS       add ELIBS [$ELIBS]
343   --extra-version=STRING   version string suffix []
344   --optflags=OPTFLAGS      override optimization-related compiler flags
345   --build-suffix=SUFFIX    library name suffix []
346   --enable-pic             build position-independent code
347   --enable-thumb           compile for Thumb instruction set
348   --enable-lto             use link-time optimization
349   --env="ENV=override"     override the environment variables
350
351 Advanced options (experts only):
352   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
353   --custom-allocator=NAME  use a supported custom allocator
354   --disable-symver         disable symbol versioning
355   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
356   --disable-safe-bitstream-reader
357                            disable buffer boundary checking in bitreaders
358                            (faster, but may crash)
359   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
360   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
361
362 Optimization options (experts only):
363   --disable-asm            disable all assembly optimizations
364   --disable-altivec        disable AltiVec optimizations
365   --disable-vsx            disable VSX optimizations
366   --disable-power8         disable POWER8 optimizations
367   --disable-amd3dnow       disable 3DNow! optimizations
368   --disable-amd3dnowext    disable 3DNow! extended optimizations
369   --disable-mmx            disable MMX optimizations
370   --disable-mmxext         disable MMXEXT optimizations
371   --disable-sse            disable SSE optimizations
372   --disable-sse2           disable SSE2 optimizations
373   --disable-sse3           disable SSE3 optimizations
374   --disable-ssse3          disable SSSE3 optimizations
375   --disable-sse4           disable SSE4 optimizations
376   --disable-sse42          disable SSE4.2 optimizations
377   --disable-avx            disable AVX optimizations
378   --disable-xop            disable XOP optimizations
379   --disable-fma3           disable FMA3 optimizations
380   --disable-fma4           disable FMA4 optimizations
381   --disable-avx2           disable AVX2 optimizations
382   --disable-aesni          disable AESNI optimizations
383   --disable-armv5te        disable armv5te optimizations
384   --disable-armv6          disable armv6 optimizations
385   --disable-armv6t2        disable armv6t2 optimizations
386   --disable-vfp            disable VFP optimizations
387   --disable-neon           disable NEON optimizations
388   --disable-inline-asm     disable use of inline assembly
389   --disable-yasm           disable use of nasm/yasm assembly
390   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
391   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
392   --disable-msa            disable MSA optimizations
393   --disable-mipsfpu        disable floating point MIPS optimizations
394   --disable-mmi            disable Loongson SIMD optimizations
395   --disable-fast-unaligned consider unaligned accesses slow
396
397 Developer options (useful when working on FFmpeg itself):
398   --disable-debug          disable debugging symbols
399   --enable-debug=LEVEL     set the debug level [$debuglevel]
400   --disable-optimizations  disable compiler optimizations
401   --enable-extra-warnings  enable more compiler warnings
402   --disable-stripping      disable stripping of executables and shared libraries
403   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
404                            2 causes a slowdown at runtime.
405   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
406   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
407                            leaks and errors, using the specified valgrind binary.
408                            Cannot be combined with --target-exec
409   --enable-ftrapv          Trap arithmetic overflows
410   --samples=PATH           location of test samples for FATE, if not set use
411                            \$FATE_SAMPLES at make invocation time.
412   --enable-neon-clobber-test check NEON registers for clobbering (should be
413                            used only for debugging purposes)
414   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
415                            should be used only for debugging purposes)
416   --enable-random          randomly enable/disable components
417   --disable-random
418   --enable-random=LIST     randomly enable/disable specific components or
419   --disable-random=LIST    component groups. LIST is a comma-separated list
420                            of NAME[:PROB] entries where NAME is a component
421                            (group) and PROB the probability associated with
422                            NAME (default 0.5).
423   --random-seed=VALUE      seed value for --enable/disable-random
424   --disable-valgrind-backtrace do not print a backtrace under Valgrind
425                            (only applies to --disable-optimizations builds)
426
427 NOTE: Object files are built at the place where configure is launched.
428 EOF
429   exit 0
430 }
431
432 quotes='""'
433 if test -t 1 && which tput >/dev/null 2>&1; then
434     ncolors=$(tput colors)
435     if test -n "$ncolors" && test $ncolors -ge 8; then
436         bold_color=$(tput bold)
437         warn_color=$(tput setaf 3)
438         error_color=$(tput setaf 1)
439         reset_color=$(tput sgr0)
440     fi
441     # 72 used instead of 80 since that's the default of pr
442     ncols=$(tput cols)
443 fi
444 : ${ncols:=72}
445
446 log(){
447     echo "$@" >> $logfile
448 }
449
450 log_file(){
451     log BEGIN $1
452     pr -n -t $1 >> $logfile
453     log END $1
454 }
455
456 warn(){
457     log "WARNING: $*"
458     WARNINGS="${WARNINGS}WARNING: $*\n"
459 }
460
461 die(){
462     log "$@"
463     echo "$error_color$bold_color$@$reset_color"
464     cat <<EOF
465
466 If you think configure made a mistake, make sure you are using the latest
467 version from Git.  If the latest version fails, report the problem to the
468 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
469 EOF
470     if disabled logging; then
471         cat <<EOF
472 Rerun configure with logging enabled (do not use --disable-logging), and
473 include the log this produces with your report.
474 EOF
475     else
476         cat <<EOF
477 Include the log file "$logfile" produced by configure as this will help
478 solve the problem.
479 EOF
480     fi
481     exit 1
482 }
483
484 # Avoid locale weirdness, besides we really just want to translate ASCII.
485 toupper(){
486     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
487 }
488
489 tolower(){
490     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
491 }
492
493 c_escape(){
494     echo "$*" | sed 's/["\\]/\\\0/g'
495 }
496
497 sh_quote(){
498     v=$(echo "$1" | sed "s/'/'\\\\''/g")
499     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
500     echo "$v"
501 }
502
503 cleanws(){
504     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
505 }
506
507 filter(){
508     pat=$1
509     shift
510     for v; do
511         eval "case $v in $pat) echo $v ;; esac"
512     done
513 }
514
515 filter_out(){
516     pat=$1
517     shift
518     for v; do
519         eval "case $v in $pat) ;; *) echo $v ;; esac"
520     done
521 }
522
523 map(){
524     m=$1
525     shift
526     for v; do eval $m; done
527 }
528
529 add_suffix(){
530     suffix=$1
531     shift
532     for v; do echo ${v}${suffix}; done
533 }
534
535 set_all(){
536     value=$1
537     shift
538     for var in $*; do
539         eval $var=$value
540     done
541 }
542
543 set_weak(){
544     value=$1
545     shift
546     for var; do
547         eval : \${$var:=$value}
548     done
549 }
550
551 sanitize_var_name(){
552     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
553 }
554
555 set_safe(){
556     var=$1
557     shift
558     eval $(sanitize_var_name "$var")='$*'
559 }
560
561 get_safe(){
562     eval echo \$$(sanitize_var_name "$1")
563 }
564
565 pushvar(){
566     for pvar in $*; do
567         eval level=\${${pvar}_level:=0}
568         eval ${pvar}_${level}="\$$pvar"
569         eval ${pvar}_level=$(($level+1))
570     done
571 }
572
573 popvar(){
574     for pvar in $*; do
575         eval level=\${${pvar}_level:-0}
576         test $level = 0 && continue
577         eval level=$(($level-1))
578         eval $pvar="\${${pvar}_${level}}"
579         eval ${pvar}_level=$level
580         eval unset ${pvar}_${level}
581     done
582 }
583
584 enable(){
585     set_all yes $*
586 }
587
588 disable(){
589     set_all no $*
590 }
591
592 enable_weak(){
593     set_weak yes $*
594 }
595
596 disable_weak(){
597     set_weak no $*
598 }
599
600 enable_safe(){
601     for var; do
602         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
603     done
604 }
605
606 disable_safe(){
607     for var; do
608         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
609     done
610 }
611
612 do_enable_deep(){
613     for var; do
614         enabled $var && continue
615         eval sel="\$${var}_select"
616         eval sgs="\$${var}_suggest"
617         pushvar var sgs
618         enable_deep $sel
619         popvar sgs
620         enable_deep_weak $sgs
621         popvar var
622     done
623 }
624
625 enable_deep(){
626     do_enable_deep $*
627     enable $*
628 }
629
630 enable_deep_weak(){
631     for var; do
632         disabled $var && continue
633         pushvar var
634         do_enable_deep $var
635         popvar var
636         enable_weak $var
637     done
638 }
639
640 enabled(){
641     test "${1#!}" = "$1" && op='=' || op=!=
642     eval test "x\$${1#!}" $op "xyes"
643 }
644
645 disabled(){
646     test "${1#!}" = "$1" && op='=' || op=!=
647     eval test "x\$${1#!}" $op "xno"
648 }
649
650 enabled_all(){
651     for opt; do
652         enabled $opt || return 1
653     done
654 }
655
656 disabled_all(){
657     for opt; do
658         disabled $opt || return 1
659     done
660 }
661
662 enabled_any(){
663     for opt; do
664         enabled $opt && return 0
665     done
666 }
667
668 disabled_any(){
669     for opt; do
670         disabled $opt && return 0
671     done
672     return 1
673 }
674
675 set_default(){
676     for opt; do
677         eval : \${$opt:=\$${opt}_default}
678     done
679 }
680
681 is_in(){
682     value=$1
683     shift
684     for var in $*; do
685         [ $var = $value ] && return 0
686     done
687     return 1
688 }
689
690 do_check_deps(){
691     for cfg; do
692         cfg="${cfg#!}"
693         enabled ${cfg}_checking && die "Circular dependency for $cfg."
694         disabled ${cfg}_checking && continue
695         enable ${cfg}_checking
696         append allopts $cfg
697
698         eval dep_all="\$${cfg}_deps"
699         eval dep_any="\$${cfg}_deps_any"
700         eval dep_sel="\$${cfg}_select"
701         eval dep_sgs="\$${cfg}_suggest"
702         eval dep_ifa="\$${cfg}_if"
703         eval dep_ifn="\$${cfg}_if_any"
704
705         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
706         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
707         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
708
709         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
710         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
711         enabled_all  $dep_all || disable $cfg
712         enabled_any  $dep_any || disable $cfg
713         disabled_any $dep_sel && disable $cfg
714
715         if enabled $cfg; then
716             enable_deep $dep_sel
717             enable_deep_weak $dep_sgs
718         fi
719
720         disable ${cfg}_checking
721     done
722 }
723
724 check_deps(){
725     unset allopts
726
727     do_check_deps "$@"
728
729     for cfg in $allopts; do
730         enabled $cfg || continue
731         eval dep_extralibs="\$${cfg}_extralibs"
732         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
733     done
734 }
735
736 print_config(){
737     pfx=$1
738     files=$2
739     shift 2
740     map 'eval echo "$v \${$v:-no}"' "$@" |
741     awk "BEGIN { split(\"$files\", files) }
742         {
743             c = \"$pfx\" toupper(\$1);
744             v = \$2;
745             sub(/yes/, 1, v);
746             sub(/no/,  0, v);
747             for (f in files) {
748                 file = files[f];
749                 if (file ~ /\\.h\$/) {
750                     printf(\"#define %s %d\\n\", c, v) >>file;
751                 } else if (file ~ /\\.asm\$/) {
752                     printf(\"%%define %s %d\\n\", c, v) >>file;
753                 } else if (file ~ /\\.mak\$/) {
754                     n = -v ? \"\" : \"!\";
755                     printf(\"%s%s=yes\\n\", n, c) >>file;
756                 } else if (file ~ /\\.texi\$/) {
757                     pre = -v ? \"\" : \"@c \";
758                     yesno = \$2;
759                     c2 = tolower(c);
760                     gsub(/_/, \"-\", c2);
761                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
762                 }
763             }
764         }"
765 }
766
767 print_enabled(){
768     suf=$1
769     shift
770     for v; do
771         enabled $v && printf "%s\n" ${v%$suf};
772     done
773 }
774
775 append(){
776     var=$1
777     shift
778     eval "$var=\"\$$var $*\""
779 }
780
781 prepend(){
782     var=$1
783     shift
784     eval "$var=\"$* \$$var\""
785 }
786
787 unique(){
788     var=$1
789     uniq_list=""
790     for tok in $(eval echo \$$var); do
791         uniq_list="$(filter_out $tok $uniq_list) $tok"
792     done
793     eval "$var=\"${uniq_list}\""
794 }
795
796 add_cppflags(){
797     append CPPFLAGS "$@"
798 }
799
800 add_cflags(){
801     append CFLAGS $($cflags_filter "$@")
802 }
803
804 add_cxxflags(){
805     append CXXFLAGS $($cflags_filter "$@")
806 }
807
808 add_asflags(){
809     append ASFLAGS $($asflags_filter "$@")
810 }
811
812 add_objcflags(){
813     append OBJCFLAGS $($objcflags_filter "$@")
814 }
815
816 add_ldflags(){
817     append LDFLAGS $($ldflags_filter "$@")
818 }
819
820 add_ldexeflags(){
821     append LDEXEFLAGS $($ldflags_filter "$@")
822 }
823
824 add_ldlibflags(){
825     append LDLIBFLAGS $($ldflags_filter "$@")
826 }
827
828 add_stripflags(){
829     append ASMSTRIPFLAGS "$@"
830 }
831
832 add_extralibs(){
833     prepend extralibs $($ldflags_filter "$@")
834 }
835
836 add_host_cppflags(){
837     append host_cppflags "$@"
838 }
839
840 add_host_cflags(){
841     append host_cflags $($host_cflags_filter "$@")
842 }
843
844 add_host_ldflags(){
845     append host_ldflags $($host_ldflags_filter "$@")
846 }
847
848 add_compat(){
849     append compat_objs $1
850     shift
851     map 'add_cppflags -D$v' "$@"
852 }
853
854 check_cmd(){
855     log "$@"
856     "$@" >> $logfile 2>&1
857 }
858
859 check_stat(){
860     log check_stat "$@"
861     stat "$1" >> $logfile 2>&1
862 }
863
864 cc_o(){
865     eval printf '%s\\n' $CC_O
866 }
867
868 cc_e(){
869     eval printf '%s\\n' $CC_E
870 }
871
872 check_cc(){
873     log check_cc "$@"
874     cat > $TMPC
875     log_file $TMPC
876     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
877 }
878
879 check_cxx(){
880     log check_cxx "$@"
881     cat > $TMPCPP
882     log_file $TMPCPP
883     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
884 }
885
886 check_objcc(){
887     log check_objcc "$@"
888     cat > $TMPM
889     log_file $TMPM
890     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
891 }
892
893 check_cpp(){
894     log check_cpp "$@"
895     cat > $TMPC
896     log_file $TMPC
897     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
898 }
899
900 as_o(){
901     eval printf '%s\\n' $AS_O
902 }
903
904 check_as(){
905     log check_as "$@"
906     cat > $TMPS
907     log_file $TMPS
908     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
909 }
910
911 check_inline_asm(){
912     log check_inline_asm "$@"
913     name="$1"
914     code="$2"
915     shift 2
916     disable $name
917     check_cc "$@" <<EOF && enable $name
918 void foo(void){ __asm__ volatile($code); }
919 EOF
920 }
921
922 check_inline_asm_flags(){
923     log check_inline_asm_flags "$@"
924     name="$1"
925     code="$2"
926     flags=''
927     shift 2
928     while [ "$1" != "" ]; do
929       append flags $1
930       shift
931     done;
932     disable $name
933     cat > $TMPC <<EOF
934 void foo(void){ __asm__ volatile($code); }
935 EOF
936     log_file $TMPC
937     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
938     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
939 }
940
941 check_insn(){
942     log check_insn "$@"
943     check_inline_asm ${1}_inline "\"$2\""
944     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
945 }
946
947 check_yasm(){
948     log check_yasm "$@"
949     echo "$1" > $TMPS
950     log_file $TMPS
951     shift 1
952     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
953 }
954
955 ld_o(){
956     eval printf '%s\\n' $LD_O
957 }
958
959 check_ld(){
960     log check_ld "$@"
961     type=$1
962     shift 1
963     flags=$(filter_out '-l*|*.so' $@)
964     libs=$(filter '-l*|*.so' $@)
965     check_$type $($cflags_filter $flags) || return
966     flags=$($ldflags_filter $flags)
967     libs=$($ldflags_filter $libs)
968     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
969 }
970
971 print_include(){
972     hdr=$1
973     test "${hdr%.h}" = "${hdr}" &&
974         echo "#include $hdr"    ||
975         echo "#include <$hdr>"
976 }
977
978 check_code(){
979     log check_code "$@"
980     check=$1
981     headers=$2
982     code=$3
983     shift 3
984     {
985         for hdr in $headers; do
986             print_include $hdr
987         done
988         echo "int main(void) { $code; return 0; }"
989     } | check_$check "$@"
990 }
991
992 check_cppflags(){
993     log check_cppflags "$@"
994     check_cc "$@" <<EOF && append CPPFLAGS "$@"
995 int x;
996 EOF
997 }
998
999 test_cflags(){
1000     log test_cflags "$@"
1001     set -- $($cflags_filter "$@")
1002     check_cc "$@" <<EOF
1003 int x;
1004 EOF
1005 }
1006
1007 check_cflags(){
1008     log check_cflags "$@"
1009     test_cflags "$@" && add_cflags "$@"
1010 }
1011
1012 check_cxxflags(){
1013     log check_cxxflags "$@"
1014     set -- $($cflags_filter "$@")
1015     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1016 int x;
1017 EOF
1018 }
1019
1020 test_objcflags(){
1021     log test_cflags "$@"
1022     set -- $($cflags_filter "$@")
1023     check_objcc "$@" <<EOF
1024 int x;
1025 EOF
1026 }
1027
1028 check_objcflags(){
1029     log check_cflags "$@"
1030     test_objcflags "$@" && add_objcflags "$@"
1031 }
1032
1033 test_ldflags(){
1034     log test_ldflags "$@"
1035     check_ld "cc" "$@" <<EOF
1036 int main(void){ return 0; }
1037 EOF
1038 }
1039
1040 check_ldflags(){
1041     log check_ldflags "$@"
1042     test_ldflags "$@" && add_ldflags "$@"
1043 }
1044
1045 test_stripflags(){
1046     log test_stripflags "$@"
1047     # call check_cc to get a fresh TMPO
1048     check_cc <<EOF
1049 int main(void) { return 0; }
1050 EOF
1051     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1052 }
1053
1054 check_stripflags(){
1055     log check_stripflags "$@"
1056     test_stripflags "$@" && add_stripflags "$@"
1057 }
1058
1059 check_header(){
1060     log check_header "$@"
1061     header=$1
1062     shift
1063     disable_safe $header
1064     check_cpp "$@" <<EOF && enable_safe $header
1065 #include <$header>
1066 int x;
1067 EOF
1068 }
1069
1070 check_header_objcc(){
1071     log check_header_objcc "$@"
1072     rm -f -- "$TMPO"
1073     header=$1
1074     shift
1075     disable_safe $header
1076     {
1077        echo "#include <$header>"
1078        echo "int main(void) { return 0; }"
1079     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1080 }
1081
1082 check_func(){
1083     log check_func "$@"
1084     func=$1
1085     shift
1086     disable $func
1087     check_ld "cc" "$@" <<EOF && enable $func
1088 extern int $func();
1089 int main(void){ $func(); }
1090 EOF
1091 }
1092
1093 check_complexfunc(){
1094     log check_complexfunc "$@"
1095     func=$1
1096     narg=$2
1097     shift 2
1098     test $narg = 2 && args="f, g" || args="f * I"
1099     disable $func
1100     check_ld "cc" "$@" <<EOF && enable $func
1101 #include <complex.h>
1102 #include <math.h>
1103 float foo(complex float f, complex float g) { return $func($args); }
1104 int main(void){ return (int) foo; }
1105 EOF
1106 }
1107
1108 check_mathfunc(){
1109     log check_mathfunc "$@"
1110     func=$1
1111     narg=$2
1112     shift 2
1113     test $narg = 2 && args="f, g" || args="f"
1114     disable $func
1115     check_ld "cc" "$@" <<EOF && enable $func
1116 #include <math.h>
1117 float foo(float f, float g) { return $func($args); }
1118 int main(void){ return (int) foo; }
1119 EOF
1120 }
1121
1122 check_func_headers(){
1123     log check_func_headers "$@"
1124     headers=$1
1125     funcs=$2
1126     shift 2
1127     {
1128         for hdr in $headers; do
1129             print_include $hdr
1130         done
1131         for func in $funcs; do
1132             echo "long check_$func(void) { return (long) $func; }"
1133         done
1134         echo "int main(void) { return 0; }"
1135     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1136 }
1137
1138 check_class_headers_cpp(){
1139     log check_class_headers_cpp "$@"
1140     headers=$1
1141     classes=$2
1142     shift 2
1143     {
1144         for hdr in $headers; do
1145             echo "#include <$hdr>"
1146         done
1147         echo "int main(void) { "
1148         i=1
1149         for class in $classes; do
1150             echo "$class obj$i;"
1151             i=$(expr $i + 1)
1152         done
1153         echo "return 0; }"
1154     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1155 }
1156
1157 check_cpp_condition(){
1158     log check_cpp_condition "$@"
1159     header=$1
1160     condition=$2
1161     shift 2
1162     check_cpp "$@" <<EOF
1163 #include <$header>
1164 #if !($condition)
1165 #error "unsatisfied condition: $condition"
1166 #endif
1167 EOF
1168 }
1169
1170 check_lib(){
1171     log check_lib "$@"
1172     header="$1"
1173     func="$2"
1174     shift 2
1175     check_header $header && check_func $func "$@" && add_extralibs "$@"
1176 }
1177
1178 check_lib2(){
1179     log check_lib2 "$@"
1180     headers="$1"
1181     funcs="$2"
1182     shift 2
1183     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1184 }
1185
1186 check_lib_cpp(){
1187     log check_lib_cpp "$@"
1188     headers="$1"
1189     classes="$2"
1190     shift 2
1191     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1192 }
1193
1194 check_pkg_config(){
1195     log check_pkg_config "$@"
1196     pkgandversion="$1"
1197     pkg="${1%% *}"
1198     headers="$2"
1199     funcs="$3"
1200     shift 3
1201     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1202     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1203     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1204     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1205         set_safe "${pkg}_cflags" $pkg_cflags   &&
1206         set_safe "${pkg}_libs"   $pkg_libs
1207 }
1208
1209 check_exec(){
1210     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1211 }
1212
1213 check_exec_crash(){
1214     code=$(cat)
1215
1216     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1217     # are safe but may not be available everywhere.  Thus we use
1218     # raise(SIGTERM) instead.  The check is run in a subshell so we
1219     # can redirect the "Terminated" message from the shell.  SIGBUS
1220     # is not defined by standard C so it is used conditionally.
1221
1222     (check_exec "$@") >> $logfile 2>&1 <<EOF
1223 #include <signal.h>
1224 static void sighandler(int sig){
1225     raise(SIGTERM);
1226 }
1227 int foo(void){
1228     $code
1229 }
1230 int (*func_ptr)(void) = foo;
1231 int main(void){
1232     signal(SIGILL, sighandler);
1233     signal(SIGFPE, sighandler);
1234     signal(SIGSEGV, sighandler);
1235 #ifdef SIGBUS
1236     signal(SIGBUS, sighandler);
1237 #endif
1238     return func_ptr();
1239 }
1240 EOF
1241 }
1242
1243 check_type(){
1244     log check_type "$@"
1245     headers=$1
1246     type=$2
1247     shift 2
1248     disable_safe "$type"
1249     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1250 }
1251
1252 check_struct(){
1253     log check_struct "$@"
1254     headers=$1
1255     struct=$2
1256     member=$3
1257     shift 3
1258     disable_safe "${struct}_${member}"
1259     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1260         enable_safe "${struct}_${member}"
1261 }
1262
1263 check_builtin(){
1264     log check_builtin "$@"
1265     name=$1
1266     headers=$2
1267     builtin=$3
1268     shift 3
1269     disable "$name"
1270     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1271 }
1272
1273 check_compile_assert(){
1274     log check_compile_assert "$@"
1275     name=$1
1276     headers=$2
1277     condition=$3
1278     shift 3
1279     disable "$name"
1280     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1281 }
1282
1283 require(){
1284     name="$1"
1285     header="$2"
1286     func="$3"
1287     shift 3
1288     check_lib $header $func "$@" || die "ERROR: $name not found"
1289 }
1290
1291 require2(){
1292     name="$1"
1293     headers="$2"
1294     func="$3"
1295     shift 3
1296     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1297 }
1298
1299 require_cpp(){
1300     name="$1"
1301     headers="$2"
1302     classes="$3"
1303     shift 3
1304     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1305 }
1306
1307 use_pkg_config(){
1308     pkg="$1"
1309     check_pkg_config "$@" || return 1
1310     add_cflags    $(get_safe "${pkg}_cflags")
1311     add_extralibs $(get_safe "${pkg}_libs")
1312 }
1313
1314 require_pkg_config(){
1315     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1316 }
1317
1318 require_libfreetype(){
1319     log require_libfreetype "$@"
1320     pkg="freetype2"
1321     check_cmd $pkg_config --exists --print-errors $pkg \
1322       || die "ERROR: $pkg not found"
1323     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1324     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1325     {
1326         echo "#include <ft2build.h>"
1327         echo "#include FT_FREETYPE_H"
1328         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1329         echo "int main(void) { return 0; }"
1330     } | check_ld "cc" $pkg_cflags $pkg_libs \
1331       && set_safe "${pkg}_cflags" $pkg_cflags \
1332       && set_safe "${pkg}_libs"   $pkg_libs \
1333       || die "ERROR: $pkg not found"
1334     add_cflags    $(get_safe "${pkg}_cflags")
1335     add_extralibs $(get_safe "${pkg}_libs")
1336 }
1337
1338 hostcc_e(){
1339     eval printf '%s\\n' $HOSTCC_E
1340 }
1341
1342 hostcc_o(){
1343     eval printf '%s\\n' $HOSTCC_O
1344 }
1345
1346 check_host_cc(){
1347     log check_host_cc "$@"
1348     cat > $TMPC
1349     log_file $TMPC
1350     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1351 }
1352
1353 check_host_cpp(){
1354     log check_host_cpp "$@"
1355     cat > $TMPC
1356     log_file $TMPC
1357     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1358 }
1359
1360 check_host_cppflags(){
1361     log check_host_cppflags "$@"
1362     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1363 int x;
1364 EOF
1365 }
1366
1367 check_host_cflags(){
1368     log check_host_cflags "$@"
1369     set -- $($host_cflags_filter "$@")
1370     check_host_cc "$@" <<EOF && append host_cflags "$@"
1371 int x;
1372 EOF
1373 }
1374
1375 check_host_cpp_condition(){
1376     log check_host_cpp_condition "$@"
1377     header=$1
1378     condition=$2
1379     shift 2
1380     check_host_cpp "$@" <<EOF
1381 #include <$header>
1382 #if !($condition)
1383 #error "unsatisfied condition: $condition"
1384 #endif
1385 EOF
1386 }
1387
1388 cp_if_changed(){
1389     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1390     mkdir -p "$(dirname $2)"
1391     $cp_f "$1" "$2"
1392 }
1393
1394 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1395 # system-dependent things.
1396
1397 AVCODEC_COMPONENTS="
1398     bsfs
1399     decoders
1400     encoders
1401     hwaccels
1402     parsers
1403 "
1404
1405 AVDEVICE_COMPONENTS="
1406     indevs
1407     outdevs
1408 "
1409 AVFILTER_COMPONENTS="
1410     filters
1411 "
1412 AVFORMAT_COMPONENTS="
1413     demuxers
1414     muxers
1415     protocols
1416 "
1417
1418 AVRESAMPLE_COMPONENTS=""
1419 AVUTIL_COMPONENTS=""
1420
1421 COMPONENT_LIST="
1422     $AVCODEC_COMPONENTS
1423     $AVDEVICE_COMPONENTS
1424     $AVFILTER_COMPONENTS
1425     $AVFORMAT_COMPONENTS
1426     $AVRESAMPLE_COMPONENTS
1427     $AVUTIL_COMPONENTS
1428 "
1429
1430 EXAMPLE_LIST="
1431     avio_reading_example
1432     avio_dir_cmd_example
1433     decoding_encoding_example
1434     demuxing_decoding_example
1435     extract_mvs_example
1436     filter_audio_example
1437     filtering_audio_example
1438     filtering_video_example
1439     metadata_example
1440     muxing_example
1441     qsvdec_example
1442     remuxing_example
1443     resampling_audio_example
1444     scaling_video_example
1445     transcode_aac_example
1446     transcoding_example
1447 "
1448
1449 EXTERNAL_LIBRARY_LIST="
1450     audiotoolbox
1451     avisynth
1452     bzlib
1453     chromaprint
1454     crystalhd
1455     cuda
1456     decklink
1457     frei0r
1458     gcrypt
1459     gmp
1460     gnutls
1461     iconv
1462     jni
1463     ladspa
1464     libass
1465     libbluray
1466     libbs2b
1467     libcaca
1468     libcdio
1469     libcelt
1470     libdc1394
1471     libdcadec
1472     libfaac
1473     libfdk_aac
1474     libflite
1475     libfontconfig
1476     libfreetype
1477     libfribidi
1478     libgme
1479     libgsm
1480     libiec61883
1481     libilbc
1482     libkvazaar
1483     libmfx
1484     libmodplug
1485     libmp3lame
1486     libnut
1487     libopencore_amrnb
1488     libopencore_amrwb
1489     libopencv
1490     libopenh264
1491     libopenjpeg
1492     libopus
1493     libpulse
1494     librtmp
1495     librubberband
1496     libschroedinger
1497     libshine
1498     libsmbclient
1499     libsnappy
1500     libsoxr
1501     libspeex
1502     libssh
1503     libtesseract
1504     libtheora
1505     libtwolame
1506     libutvideo
1507     libv4l2
1508     libvidstab
1509     libvo_amrwbenc
1510     libvorbis
1511     libvpx
1512     libwavpack
1513     libwebp
1514     libx264
1515     libx265
1516     libxavs
1517     libxcb
1518     libxcb_shm
1519     libxcb_shape
1520     libxcb_xfixes
1521     libxvid
1522     libzimg
1523     libzmq
1524     libzvbi
1525     lzma
1526     mediacodec
1527     mmal
1528     netcdf
1529     nvenc
1530     openal
1531     opencl
1532     opengl
1533     openssl
1534     schannel
1535     sdl
1536     securetransport
1537     videotoolbox
1538     x11grab
1539     xlib
1540     zlib
1541 "
1542
1543 DOCUMENT_LIST="
1544     doc
1545     htmlpages
1546     manpages
1547     podpages
1548     txtpages
1549 "
1550
1551 FEATURE_LIST="
1552     ftrapv
1553     gray
1554     hardcoded_tables
1555     runtime_cpudetect
1556     safe_bitstream_reader
1557     shared
1558     small
1559     static
1560     swscale_alpha
1561 "
1562
1563 HWACCEL_LIST="
1564     d3d11va
1565     dxva2
1566     vaapi
1567     vda
1568     vdpau
1569     videotoolbox_hwaccel
1570     xvmc
1571 "
1572
1573 LIBRARY_LIST="
1574     avcodec
1575     avdevice
1576     avfilter
1577     avformat
1578     avresample
1579     avutil
1580     postproc
1581     swresample
1582     swscale
1583 "
1584
1585 LICENSE_LIST="
1586     gpl
1587     nonfree
1588     version3
1589 "
1590
1591 PROGRAM_LIST="
1592     ffplay
1593     ffprobe
1594     ffserver
1595     ffmpeg
1596 "
1597
1598 SUBSYSTEM_LIST="
1599     dct
1600     dwt
1601     error_resilience
1602     faan
1603     fast_unaligned
1604     fft
1605     lsp
1606     lzo
1607     mdct
1608     pixelutils
1609     network
1610     rdft
1611 "
1612
1613 CONFIG_LIST="
1614     $COMPONENT_LIST
1615     $DOCUMENT_LIST
1616     $EXAMPLE_LIST
1617     $EXTERNAL_LIBRARY_LIST
1618     $FEATURE_LIST
1619     $HWACCEL_LIST
1620     $LICENSE_LIST
1621     $LIBRARY_LIST
1622     $PROGRAM_LIST
1623     $SUBSYSTEM_LIST
1624     fontconfig
1625     incompatible_libav_abi
1626     memalign_hack
1627     memory_poisoning
1628     neon_clobber_test
1629     pic
1630     pod2man
1631     raise_major
1632     thumb
1633     valgrind_backtrace
1634     xmm_clobber_test
1635 "
1636
1637 THREADS_LIST="
1638     pthreads
1639     os2threads
1640     w32threads
1641 "
1642
1643 ATOMICS_LIST="
1644     atomics_gcc
1645     atomics_suncc
1646     atomics_win32
1647 "
1648
1649 ARCH_LIST="
1650     aarch64
1651     alpha
1652     arm
1653     avr32
1654     avr32_ap
1655     avr32_uc
1656     bfin
1657     ia64
1658     m68k
1659     mips
1660     mips64
1661     parisc
1662     ppc
1663     ppc64
1664     s390
1665     sh4
1666     sparc
1667     sparc64
1668     tilegx
1669     tilepro
1670     tomi
1671     x86
1672     x86_32
1673     x86_64
1674 "
1675
1676 ARCH_EXT_LIST_ARM="
1677     armv5te
1678     armv6
1679     armv6t2
1680     armv8
1681     neon
1682     vfp
1683     vfpv3
1684     setend
1685 "
1686
1687 ARCH_EXT_LIST_MIPS="
1688     mipsfpu
1689     mips32r2
1690     mips32r5
1691     mips64r2
1692     mips32r6
1693     mips64r6
1694     mipsdsp
1695     mipsdspr2
1696     msa
1697 "
1698
1699 ARCH_EXT_LIST_LOONGSON="
1700     loongson2
1701     loongson3
1702     mmi
1703 "
1704
1705 ARCH_EXT_LIST_X86_SIMD="
1706     aesni
1707     amd3dnow
1708     amd3dnowext
1709     avx
1710     avx2
1711     fma3
1712     fma4
1713     mmx
1714     mmxext
1715     sse
1716     sse2
1717     sse3
1718     sse4
1719     sse42
1720     ssse3
1721     xop
1722 "
1723
1724 ARCH_EXT_LIST_PPC="
1725     altivec
1726     dcbzl
1727     ldbrx
1728     power8
1729     ppc4xx
1730     vsx
1731 "
1732
1733 ARCH_EXT_LIST_X86="
1734     $ARCH_EXT_LIST_X86_SIMD
1735     cpunop
1736     i686
1737 "
1738
1739 ARCH_EXT_LIST="
1740     $ARCH_EXT_LIST_ARM
1741     $ARCH_EXT_LIST_PPC
1742     $ARCH_EXT_LIST_X86
1743     $ARCH_EXT_LIST_MIPS
1744     $ARCH_EXT_LIST_LOONGSON
1745 "
1746
1747 ARCH_FEATURES="
1748     aligned_stack
1749     fast_64bit
1750     fast_clz
1751     fast_cmov
1752     local_aligned_8
1753     local_aligned_16
1754     local_aligned_32
1755     simd_align_16
1756 "
1757
1758 BUILTIN_LIST="
1759     atomic_cas_ptr
1760     atomic_compare_exchange
1761     machine_rw_barrier
1762     MemoryBarrier
1763     mm_empty
1764     rdtsc
1765     sarestart
1766     sem_timedwait
1767     sync_val_compare_and_swap
1768 "
1769 HAVE_LIST_CMDLINE="
1770     inline_asm
1771     symver
1772     yasm
1773 "
1774
1775 HAVE_LIST_PUB="
1776     bigendian
1777     fast_unaligned
1778     incompatible_libav_abi
1779 "
1780
1781 HEADERS_LIST="
1782     alsa_asoundlib_h
1783     altivec_h
1784     arpa_inet_h
1785     asm_types_h
1786     cdio_paranoia_h
1787     cdio_paranoia_paranoia_h
1788     dispatch_dispatch_h
1789     dev_bktr_ioctl_bt848_h
1790     dev_bktr_ioctl_meteor_h
1791     dev_ic_bt8xx_h
1792     dev_video_bktr_ioctl_bt848_h
1793     dev_video_meteor_ioctl_meteor_h
1794     direct_h
1795     dirent_h
1796     dlfcn_h
1797     d3d11_h
1798     dxva_h
1799     ES2_gl_h
1800     gsm_h
1801     io_h
1802     mach_mach_time_h
1803     machine_ioctl_bt848_h
1804     machine_ioctl_meteor_h
1805     malloc_h
1806     opencv2_core_core_c_h
1807     openjpeg_2_1_openjpeg_h
1808     openjpeg_2_0_openjpeg_h
1809     openjpeg_1_5_openjpeg_h
1810     OpenGL_gl3_h
1811     poll_h
1812     sndio_h
1813     soundcard_h
1814     sys_mman_h
1815     sys_param_h
1816     sys_resource_h
1817     sys_select_h
1818     sys_soundcard_h
1819     sys_time_h
1820     sys_un_h
1821     sys_videoio_h
1822     termios_h
1823     udplite_h
1824     unistd_h
1825     valgrind_valgrind_h
1826     windows_h
1827     winsock2_h
1828 "
1829
1830 INTRINSICS_LIST="
1831     intrinsics_neon
1832 "
1833
1834 COMPLEX_FUNCS="
1835     cabs
1836     cexp
1837 "
1838
1839 MATH_FUNCS="
1840     atanf
1841     atan2f
1842     cbrt
1843     cbrtf
1844     copysign
1845     cosf
1846     erf
1847     exp2
1848     exp2f
1849     expf
1850     hypot
1851     isfinite
1852     isinf
1853     isnan
1854     ldexpf
1855     llrint
1856     llrintf
1857     log2
1858     log2f
1859     log10f
1860     lrint
1861     lrintf
1862     powf
1863     rint
1864     round
1865     roundf
1866     sinf
1867     trunc
1868     truncf
1869 "
1870
1871 SYSTEM_FUNCS="
1872     access
1873     aligned_malloc
1874     arc4random
1875     clock_gettime
1876     closesocket
1877     CommandLineToArgvW
1878     CoTaskMemFree
1879     CryptGenRandom
1880     dlopen
1881     fcntl
1882     flt_lim
1883     fork
1884     getaddrinfo
1885     gethrtime
1886     getopt
1887     GetProcessAffinityMask
1888     GetProcessMemoryInfo
1889     GetProcessTimes
1890     getrusage
1891     GetSystemTimeAsFileTime
1892     gettimeofday
1893     glob
1894     glXGetProcAddress
1895     gmtime_r
1896     inet_aton
1897     isatty
1898     jack_port_get_latency_range
1899     kbhit
1900     localtime_r
1901     lstat
1902     lzo1x_999_compress
1903     mach_absolute_time
1904     MapViewOfFile
1905     memalign
1906     mkstemp
1907     mmap
1908     mprotect
1909     nanosleep
1910     PeekNamedPipe
1911     posix_memalign
1912     pthread_cancel
1913     sched_getaffinity
1914     SetConsoleTextAttribute
1915     SetConsoleCtrlHandler
1916     setmode
1917     setrlimit
1918     Sleep
1919     strerror_r
1920     sysconf
1921     sysctl
1922     usleep
1923     UTGetOSTypeFromString
1924     VirtualAlloc
1925     wglGetProcAddress
1926 "
1927
1928 TOOLCHAIN_FEATURES="
1929     as_dn_directive
1930     as_func
1931     as_object_arch
1932     asm_mod_q
1933     attribute_may_alias
1934     attribute_packed
1935     ebp_available
1936     ebx_available
1937     gnu_as
1938     gnu_windres
1939     ibm_asm
1940     inline_asm_direct_symbol_refs
1941     inline_asm_labels
1942     inline_asm_nonlocal_labels
1943     pragma_deprecated
1944     rsync_contimeout
1945     symver_asm_label
1946     symver_gnu_asm
1947     vfp_args
1948     xform_asm
1949     xmm_clobbers
1950 "
1951
1952 TYPES_LIST="
1953     CONDITION_VARIABLE_Ptr
1954     socklen_t
1955     struct_addrinfo
1956     struct_group_source_req
1957     struct_ip_mreq_source
1958     struct_ipv6_mreq
1959     struct_msghdr_msg_flags
1960     struct_pollfd
1961     struct_rusage_ru_maxrss
1962     struct_sctp_event_subscribe
1963     struct_sockaddr_in6
1964     struct_sockaddr_sa_len
1965     struct_sockaddr_storage
1966     struct_stat_st_mtim_tv_nsec
1967     struct_v4l2_frmivalenum_discrete
1968 "
1969
1970 HAVE_LIST="
1971     $ARCH_EXT_LIST
1972     $(add_suffix _external $ARCH_EXT_LIST)
1973     $(add_suffix _inline   $ARCH_EXT_LIST)
1974     $ARCH_FEATURES
1975     $ATOMICS_LIST
1976     $BUILTIN_LIST
1977     $COMPLEX_FUNCS
1978     $HAVE_LIST_CMDLINE
1979     $HAVE_LIST_PUB
1980     $HEADERS_LIST
1981     $INTRINSICS_LIST
1982     $MATH_FUNCS
1983     $SYSTEM_FUNCS
1984     $THREADS_LIST
1985     $TOOLCHAIN_FEATURES
1986     $TYPES_LIST
1987     atomics_native
1988     dos_paths
1989     dxva2_lib
1990     dxva2api_cobj
1991     libc_msvcrt
1992     libdc1394_1
1993     libdc1394_2
1994     makeinfo
1995     makeinfo_html
1996     perl
1997     pod2man
1998     sdl
1999     section_data_rel_ro
2000     texi2html
2001     threads
2002     vaapi_x11
2003     vdpau_x11
2004     winrt
2005     xlib
2006 "
2007
2008 # options emitted with CONFIG_ prefix but not available on the command line
2009 CONFIG_EXTRA="
2010     aandcttables
2011     ac3dsp
2012     audio_frame_queue
2013     audiodsp
2014     blockdsp
2015     bswapdsp
2016     cabac
2017     dirac_parse
2018     dvprofile
2019     exif
2020     faandct
2021     faanidct
2022     fdctdsp
2023     flacdsp
2024     fmtconvert
2025     frame_thread_encoder
2026     g722dsp
2027     golomb
2028     gplv3
2029     h263dsp
2030     h264chroma
2031     h264dsp
2032     h264pred
2033     h264qpel
2034     hpeldsp
2035     huffman
2036     huffyuvdsp
2037     huffyuvencdsp
2038     idctdsp
2039     iirfilter
2040     imdct15
2041     intrax8
2042     iso_media
2043     ividsp
2044     jpegtables
2045     lgplv3
2046     libx262
2047     llauddsp
2048     llviddsp
2049     lpc
2050     lzf
2051     me_cmp
2052     mpeg_er
2053     mpegaudio
2054     mpegaudiodsp
2055     mpegvideo
2056     mpegvideoenc
2057     mss34dsp
2058     pixblockdsp
2059     qpeldsp
2060     qsv
2061     qsvdec
2062     qsvenc
2063     rangecoder
2064     riffdec
2065     riffenc
2066     rtpdec
2067     rtpenc_chain
2068     rv34dsp
2069     sinewin
2070     snappy
2071     startcode
2072     texturedsp
2073     texturedspenc
2074     tpeldsp
2075     vc1dsp
2076     videodsp
2077     vp3dsp
2078     vp56dsp
2079     vp8dsp
2080     wma_freqs
2081     wmv2dsp
2082 "
2083
2084 CMDLINE_SELECT="
2085     $ARCH_EXT_LIST
2086     $CONFIG_LIST
2087     $HAVE_LIST_CMDLINE
2088     $THREADS_LIST
2089     asm
2090     cross_compile
2091     debug
2092     extra_warnings
2093     logging
2094     lto
2095     optimizations
2096     rpath
2097     stripping
2098 "
2099
2100 PATHS_LIST="
2101     bindir
2102     datadir
2103     docdir
2104     incdir
2105     libdir
2106     mandir
2107     pkgconfigdir
2108     prefix
2109     shlibdir
2110     install_name_dir
2111 "
2112
2113 CMDLINE_SET="
2114     $PATHS_LIST
2115     ar
2116     arch
2117     as
2118     assert_level
2119     build_suffix
2120     cc
2121     objcc
2122     cpu
2123     cross_prefix
2124     custom_allocator
2125     cxx
2126     dep_cc
2127     doxygen
2128     env
2129     extra_version
2130     gas
2131     host_cc
2132     host_cflags
2133     host_ld
2134     host_ldflags
2135     host_libs
2136     host_os
2137     install
2138     ld
2139     logfile
2140     malloc_prefix
2141     nm
2142     optflags
2143     pkg_config
2144     pkg_config_flags
2145     progs_suffix
2146     random_seed
2147     ranlib
2148     samples
2149     strip
2150     sws_max_filter_size
2151     sysinclude
2152     sysroot
2153     target_exec
2154     target_os
2155     target_path
2156     target_samples
2157     tempprefix
2158     toolchain
2159     valgrind
2160     yasmexe
2161 "
2162
2163 CMDLINE_APPEND="
2164     extra_cflags
2165     extra_cxxflags
2166     extra_objcflags
2167     host_cppflags
2168 "
2169
2170 # code dependency declarations
2171
2172 # architecture extensions
2173
2174 armv5te_deps="arm"
2175 armv6_deps="arm"
2176 armv6t2_deps="arm"
2177 armv8_deps="aarch64"
2178 neon_deps_any="aarch64 arm"
2179 intrinsics_neon_deps="neon"
2180 vfp_deps_any="aarch64 arm"
2181 vfpv3_deps="vfp"
2182 setend_deps="arm"
2183
2184 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2185
2186 mipsfpu_deps="mips"
2187 mipsdsp_deps="mips"
2188 mipsdspr2_deps="mips"
2189 mips32r2_deps="mips"
2190 mips32r5_deps="mips"
2191 mips32r6_deps="mips"
2192 mips64r2_deps="mips"
2193 mips64r6_deps="mips"
2194 msa_deps="mipsfpu"
2195 mmi_deps="mips"
2196
2197 altivec_deps="ppc"
2198 dcbzl_deps="ppc"
2199 ldbrx_deps="ppc"
2200 ppc4xx_deps="ppc"
2201 vsx_deps="altivec"
2202 power8_deps="vsx"
2203
2204 cpunop_deps="i686"
2205 x86_64_select="i686"
2206 x86_64_suggest="fast_cmov"
2207
2208 amd3dnow_deps="mmx"
2209 amd3dnowext_deps="amd3dnow"
2210 i686_deps="x86"
2211 mmx_deps="x86"
2212 mmxext_deps="mmx"
2213 sse_deps="mmxext"
2214 sse2_deps="sse"
2215 sse3_deps="sse2"
2216 ssse3_deps="sse3"
2217 sse4_deps="ssse3"
2218 sse42_deps="sse4"
2219 aesni_deps="sse42"
2220 avx_deps="sse42"
2221 xop_deps="avx"
2222 fma3_deps="avx"
2223 fma4_deps="avx"
2224 avx2_deps="avx"
2225
2226 mmx_external_deps="yasm"
2227 mmx_inline_deps="inline_asm"
2228 mmx_suggest="mmx_external mmx_inline"
2229
2230 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2231     eval dep=\$${ext}_deps
2232     eval ${ext}_external_deps='"${dep}_external"'
2233     eval ${ext}_inline_deps='"${dep}_inline"'
2234     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2235 done
2236
2237 aligned_stack_if_any="aarch64 ppc x86"
2238 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2239 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2240 fast_unaligned_if_any="aarch64 ppc x86"
2241 simd_align_16_if_any="altivec neon sse"
2242
2243 # system capabilities
2244 symver_if_any="symver_asm_label symver_gnu_asm"
2245 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2246
2247 # threading support
2248 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2249 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2250 atomics_win32_if="MemoryBarrier"
2251 atomics_native_if_any="$ATOMICS_LIST"
2252 w32threads_deps="atomics_native"
2253 threads_if_any="$THREADS_LIST"
2254
2255 # subsystems
2256 dct_select="rdft"
2257 dirac_parse_select="golomb"
2258 error_resilience_select="me_cmp"
2259 faandct_deps="faan fdctdsp"
2260 faanidct_deps="faan idctdsp"
2261 h264dsp_select="startcode"
2262 frame_thread_encoder_deps="encoders threads"
2263 intrax8_select="error_resilience"
2264 mdct_select="fft"
2265 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2266 mpeg_er_select="error_resilience"
2267 mpegaudio_select="mpegaudiodsp"
2268 mpegaudiodsp_select="dct"
2269 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2270 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2271 qsvdec_select="qsv"
2272 qsvenc_select="qsv"
2273 vc1dsp_select="h264chroma qpeldsp startcode"
2274 rdft_select="fft"
2275
2276 # decoders / encoders
2277 aac_decoder_select="imdct15 mdct sinewin"
2278 aac_fixed_decoder_select="mdct sinewin"
2279 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2280 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2281 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2282 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2283 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2284 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2285 adpcm_g722_decoder_select="g722dsp"
2286 adpcm_g722_encoder_select="g722dsp"
2287 aic_decoder_select="golomb idctdsp"
2288 alac_encoder_select="lpc"
2289 als_decoder_select="bswapdsp"
2290 amrnb_decoder_select="lsp"
2291 amrwb_decoder_select="lsp"
2292 amv_decoder_select="sp5x_decoder exif"
2293 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2294 ape_decoder_select="bswapdsp llauddsp"
2295 apng_decoder_select="zlib"
2296 apng_encoder_select="huffyuvencdsp zlib"
2297 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2298 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2299 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2300 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2301 atrac1_decoder_select="mdct sinewin"
2302 atrac3_decoder_select="mdct"
2303 atrac3p_decoder_select="mdct sinewin"
2304 avrn_decoder_select="exif jpegtables"
2305 bink_decoder_select="blockdsp hpeldsp"
2306 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2307 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2308 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2309 cllc_decoder_select="bswapdsp"
2310 comfortnoise_encoder_select="lpc"
2311 cook_decoder_select="audiodsp mdct sinewin"
2312 cscd_decoder_select="lzo"
2313 cscd_decoder_suggest="zlib"
2314 dca_decoder_select="mdct"
2315 dds_decoder_select="texturedsp"
2316 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2317 dnxhd_decoder_select="blockdsp idctdsp"
2318 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2319 dvvideo_decoder_select="dvprofile idctdsp"
2320 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2321 dxa_decoder_select="zlib"
2322 dxv_decoder_select="lzf texturedsp"
2323 eac3_decoder_select="ac3_decoder"
2324 eac3_encoder_select="ac3_encoder"
2325 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2326 eatgq_decoder_select="aandcttables"
2327 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2328 exr_decoder_select="zlib"
2329 ffv1_decoder_select="golomb rangecoder"
2330 ffv1_encoder_select="rangecoder"
2331 ffvhuff_decoder_select="huffyuv_decoder"
2332 ffvhuff_encoder_select="huffyuv_encoder"
2333 fic_decoder_select="golomb"
2334 flac_decoder_select="flacdsp golomb"
2335 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2336 flashsv2_decoder_select="zlib"
2337 flashsv2_encoder_select="zlib"
2338 flashsv_decoder_select="zlib"
2339 flashsv_encoder_select="zlib"
2340 flv_decoder_select="h263_decoder"
2341 flv_encoder_select="h263_encoder"
2342 fourxm_decoder_select="blockdsp bswapdsp"
2343 fraps_decoder_select="bswapdsp huffman"
2344 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2345 g729_decoder_select="audiodsp"
2346 h261_decoder_select="mpegvideo"
2347 h261_encoder_select="aandcttables mpegvideoenc"
2348 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2349 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2350 h263i_decoder_select="h263_decoder"
2351 h263p_decoder_select="h263_decoder"
2352 h263p_encoder_select="h263_encoder"
2353 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2354 h264_decoder_suggest="error_resilience"
2355 h264_qsv_decoder_deps="libmfx"
2356 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2357 h264_qsv_encoder_deps="libmfx"
2358 h264_qsv_encoder_select="qsvenc"
2359 hap_decoder_select="snappy texturedsp"
2360 hap_encoder_deps="libsnappy"
2361 hap_encoder_select="texturedspenc"
2362 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2363 hevc_qsv_decoder_deps="libmfx"
2364 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2365 hevc_qsv_encoder_deps="libmfx"
2366 hevc_qsv_encoder_select="qsvenc"
2367 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2368 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2369 iac_decoder_select="imc_decoder"
2370 imc_decoder_select="bswapdsp fft mdct sinewin"
2371 indeo3_decoder_select="hpeldsp"
2372 indeo4_decoder_select="ividsp"
2373 indeo5_decoder_select="ividsp"
2374 interplay_video_decoder_select="hpeldsp"
2375 jpegls_decoder_select="golomb mjpeg_decoder"
2376 jpegls_encoder_select="golomb"
2377 jv_decoder_select="blockdsp"
2378 lagarith_decoder_select="huffyuvdsp"
2379 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2380 loco_decoder_select="golomb"
2381 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2382 metasound_decoder_select="lsp mdct sinewin"
2383 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2384 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2385 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2386 mjpegb_decoder_select="mjpeg_decoder"
2387 mlp_decoder_select="mlp_parser"
2388 motionpixels_decoder_select="bswapdsp"
2389 mp1_decoder_select="mpegaudio"
2390 mp1float_decoder_select="mpegaudio"
2391 mp2_decoder_select="mpegaudio"
2392 mp2float_decoder_select="mpegaudio"
2393 mp3_decoder_select="mpegaudio"
2394 mp3adu_decoder_select="mpegaudio"
2395 mp3adufloat_decoder_select="mpegaudio"
2396 mp3float_decoder_select="mpegaudio"
2397 mp3on4_decoder_select="mpegaudio"
2398 mp3on4float_decoder_select="mpegaudio"
2399 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2400 mpc8_decoder_select="mpegaudiodsp"
2401 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2402 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2403 mpegvideo_decoder_select="mpegvideo"
2404 mpeg1video_decoder_select="mpegvideo"
2405 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2406 mpeg2video_decoder_select="mpegvideo"
2407 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2408 mpeg2_qsv_decoder_deps="libmfx"
2409 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2410 mpeg2_qsv_encoder_deps="libmfx"
2411 mpeg2_qsv_encoder_select="qsvenc"
2412 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2413 mpeg4_encoder_select="h263_encoder"
2414 msa1_decoder_select="mss34dsp"
2415 msmpeg4v1_decoder_select="h263_decoder"
2416 msmpeg4v2_decoder_select="h263_decoder"
2417 msmpeg4v2_encoder_select="h263_encoder"
2418 msmpeg4v3_decoder_select="h263_decoder"
2419 msmpeg4v3_encoder_select="h263_encoder"
2420 mss2_decoder_select="vc1_decoder mpegvideo"
2421 mts2_decoder_select="mss34dsp"
2422 mxpeg_decoder_select="mjpeg_decoder"
2423 nellymoser_decoder_select="mdct sinewin"
2424 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2425 nuv_decoder_select="idctdsp lzo"
2426 on2avc_decoder_select="mdct"
2427 opus_decoder_deps="swresample"
2428 opus_decoder_select="imdct15"
2429 png_decoder_select="zlib"
2430 png_encoder_select="huffyuvencdsp zlib"
2431 prores_decoder_select="blockdsp idctdsp"
2432 prores_encoder_select="fdctdsp"
2433 qcelp_decoder_select="lsp"
2434 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2435 ra_144_decoder_select="audiodsp"
2436 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2437 ralf_decoder_select="golomb"
2438 rawvideo_decoder_select="bswapdsp"
2439 rscc_decoder_select="zlib"
2440 rtjpeg_decoder_select="me_cmp"
2441 rv10_decoder_select="h263_decoder"
2442 rv10_encoder_select="h263_encoder"
2443 rv20_decoder_select="h263_decoder"
2444 rv20_encoder_select="h263_encoder"
2445 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2446 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2447 screenpresso_decoder_select="zlib"
2448 shorten_decoder_select="golomb"
2449 sipr_decoder_select="lsp"
2450 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2451 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2452 sonic_decoder_select="golomb rangecoder"
2453 sonic_encoder_select="golomb rangecoder"
2454 sonic_ls_encoder_select="golomb rangecoder"
2455 sp5x_decoder_select="mjpeg_decoder"
2456 svq1_decoder_select="hpeldsp"
2457 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2458 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2459 svq3_decoder_suggest="zlib"
2460 tak_decoder_select="audiodsp"
2461 tdsc_decoder_select="zlib mjpeg_decoder"
2462 theora_decoder_select="vp3_decoder"
2463 thp_decoder_select="mjpeg_decoder"
2464 tiff_decoder_suggest="zlib lzma"
2465 tiff_encoder_suggest="zlib"
2466 truehd_decoder_select="mlp_parser"
2467 truemotion2_decoder_select="bswapdsp"
2468 truespeech_decoder_select="bswapdsp"
2469 tscc_decoder_select="zlib"
2470 twinvq_decoder_select="mdct lsp sinewin"
2471 txd_decoder_select="texturedsp"
2472 utvideo_decoder_select="bswapdsp"
2473 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2474 vble_decoder_select="huffyuvdsp"
2475 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2476 vc1_qsv_decoder_deps="libmfx"
2477 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2478 vc1image_decoder_select="vc1_decoder"
2479 vorbis_decoder_select="mdct"
2480 vorbis_encoder_select="mdct"
2481 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2482 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2483 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2484 vp6a_decoder_select="vp6_decoder"
2485 vp6f_decoder_select="vp6_decoder"
2486 vp7_decoder_select="h264pred videodsp vp8dsp"
2487 vp8_decoder_select="h264pred videodsp vp8dsp"
2488 vp9_decoder_select="videodsp vp9_parser"
2489 webp_decoder_select="vp8_decoder exif"
2490 wmalossless_decoder_select="llauddsp"
2491 wmapro_decoder_select="mdct sinewin wma_freqs"
2492 wmav1_decoder_select="mdct sinewin wma_freqs"
2493 wmav1_encoder_select="mdct sinewin wma_freqs"
2494 wmav2_decoder_select="mdct sinewin wma_freqs"
2495 wmav2_encoder_select="mdct sinewin wma_freqs"
2496 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2497 wmv1_decoder_select="h263_decoder"
2498 wmv1_encoder_select="h263_encoder"
2499 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2500 wmv2_encoder_select="h263_encoder wmv2dsp"
2501 wmv3_decoder_select="vc1_decoder"
2502 wmv3image_decoder_select="wmv3_decoder"
2503 xma1_decoder_select="wmapro_decoder"
2504 xma2_decoder_select="wmapro_decoder"
2505 zerocodec_decoder_select="zlib"
2506 zlib_decoder_select="zlib"
2507 zlib_encoder_select="zlib"
2508 zmbv_decoder_select="zlib"
2509 zmbv_encoder_select="zlib"
2510
2511 # platform codecs
2512 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2513 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2514
2515 # hardware accelerators
2516 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2517 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2518 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2519 vaapi_deps="va_va_h"
2520 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2521 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2522 vda_deps="vda_framework pthreads"
2523 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2524 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2525 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2526 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2527 xvmc_deps="X11_extensions_XvMClib_h"
2528
2529 h263_vaapi_hwaccel_deps="vaapi"
2530 h263_vaapi_hwaccel_select="h263_decoder"
2531 h263_videotoolbox_hwaccel_deps="videotoolbox"
2532 h263_videotoolbox_hwaccel_select="h263_decoder"
2533 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2534 h264_d3d11va_hwaccel_deps="d3d11va"
2535 h264_d3d11va_hwaccel_select="h264_decoder"
2536 h264_dxva2_hwaccel_deps="dxva2"
2537 h264_dxva2_hwaccel_select="h264_decoder"
2538 h264_mediacodec_decoder_deps="mediacodec"
2539 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2540 h264_mmal_decoder_deps="mmal"
2541 h264_mmal_decoder_select="mmal"
2542 h264_mmal_hwaccel_deps="mmal"
2543 h264_qsv_hwaccel_deps="libmfx"
2544 h264_vaapi_hwaccel_deps="vaapi"
2545 h264_vaapi_hwaccel_select="h264_decoder"
2546 h264_vda_decoder_deps="vda"
2547 h264_vda_decoder_select="h264_decoder"
2548 h264_vda_hwaccel_deps="vda"
2549 h264_vda_hwaccel_select="h264_decoder"
2550 h264_vda_old_hwaccel_deps="vda"
2551 h264_vda_old_hwaccel_select="h264_decoder"
2552 h264_vdpau_decoder_deps="vdpau"
2553 h264_vdpau_decoder_select="h264_decoder"
2554 h264_vdpau_hwaccel_deps="vdpau"
2555 h264_vdpau_hwaccel_select="h264_decoder"
2556 h264_videotoolbox_hwaccel_deps="videotoolbox"
2557 h264_videotoolbox_hwaccel_select="h264_decoder"
2558 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2559 hevc_d3d11va_hwaccel_select="hevc_decoder"
2560 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2561 hevc_dxva2_hwaccel_select="hevc_decoder"
2562 hevc_qsv_hwaccel_deps="libmfx"
2563 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2564 hevc_vaapi_hwaccel_select="hevc_decoder"
2565 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2566 hevc_vdpau_hwaccel_select="hevc_decoder"
2567 mpeg_vdpau_decoder_deps="vdpau"
2568 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2569 mpeg_xvmc_hwaccel_deps="xvmc"
2570 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2571 mpeg1_vdpau_decoder_deps="vdpau"
2572 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2573 mpeg1_vdpau_hwaccel_deps="vdpau"
2574 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2575 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2576 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2577 mpeg1_xvmc_hwaccel_deps="xvmc"
2578 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2579 mpeg2_crystalhd_decoder_select="crystalhd"
2580 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2581 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2582 mpeg2_dxva2_hwaccel_deps="dxva2"
2583 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2584 mpeg2_mmal_decoder_deps="mmal"
2585 mpeg2_mmal_decoder_select="mmal"
2586 mpeg2_mmal_hwaccel_deps="mmal"
2587 mpeg2_qsv_hwaccel_deps="libmfx"
2588 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2589 mpeg2_vaapi_hwaccel_deps="vaapi"
2590 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2591 mpeg2_vdpau_hwaccel_deps="vdpau"
2592 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2593 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2594 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2595 mpeg2_xvmc_hwaccel_deps="xvmc"
2596 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2597 mpeg4_crystalhd_decoder_select="crystalhd"
2598 mpeg4_mmal_decoder_deps="mmal"
2599 mpeg4_mmal_decoder_select="mmal"
2600 mpeg4_mmal_hwaccel_deps="mmal"
2601 mpeg4_vaapi_hwaccel_deps="vaapi"
2602 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2603 mpeg4_vdpau_decoder_deps="vdpau"
2604 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2605 mpeg4_vdpau_hwaccel_deps="vdpau"
2606 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2607 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2608 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2609 msmpeg4_crystalhd_decoder_select="crystalhd"
2610 vc1_crystalhd_decoder_select="crystalhd"
2611 vc1_d3d11va_hwaccel_deps="d3d11va"
2612 vc1_d3d11va_hwaccel_select="vc1_decoder"
2613 vc1_dxva2_hwaccel_deps="dxva2"
2614 vc1_dxva2_hwaccel_select="vc1_decoder"
2615 vc1_mmal_decoder_deps="mmal"
2616 vc1_mmal_decoder_select="mmal"
2617 vc1_mmal_hwaccel_deps="mmal"
2618 vc1_qsv_hwaccel_deps="libmfx"
2619 vc1_qsv_hwaccel_select="qsvdec_vc1"
2620 vc1_vaapi_hwaccel_deps="vaapi"
2621 vc1_vaapi_hwaccel_select="vc1_decoder"
2622 vc1_vdpau_decoder_deps="vdpau"
2623 vc1_vdpau_decoder_select="vc1_decoder"
2624 vc1_vdpau_hwaccel_deps="vdpau"
2625 vc1_vdpau_hwaccel_select="vc1_decoder"
2626 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2627 vp9_d3d11va_hwaccel_select="vp9_decoder"
2628 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2629 vp9_dxva2_hwaccel_select="vp9_decoder"
2630 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2631 vp9_vaapi_hwaccel_select="vp9_decoder"
2632 wmv3_crystalhd_decoder_select="crystalhd"
2633 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2634 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2635 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2636 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2637 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2638
2639 # parsers
2640 h264_parser_select="h264_decoder"
2641 hevc_parser_select="golomb"
2642 mpegvideo_parser_select="mpegvideo"
2643 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2644 vc1_parser_select="vc1dsp"
2645
2646 # bitstream_filters
2647 mjpeg2jpeg_bsf_select="jpegtables"
2648
2649 # external libraries
2650 aac_at_decoder_deps="audiotoolbox"
2651 ac3_at_decoder_deps="audiotoolbox"
2652 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2653 alac_at_decoder_deps="audiotoolbox"
2654 amr_nb_at_decoder_deps="audiotoolbox"
2655 gsm_ms_at_decoder_deps="audiotoolbox"
2656 ilbc_at_decoder_deps="audiotoolbox"
2657 mp1_at_decoder_deps="audiotoolbox"
2658 mp2_at_decoder_deps="audiotoolbox"
2659 mp3_at_decoder_deps="audiotoolbox"
2660 pcm_alaw_at_decoder_deps="audiotoolbox"
2661 pcm_mulaw_at_decoder_deps="audiotoolbox"
2662 qdmc_at_decoder_deps="audiotoolbox"
2663 qdm2_at_decoder_deps="audiotoolbox"
2664 aac_at_encoder_deps="audiotoolbox"
2665 aac_at_encoder_select="audio_frame_queue"
2666 alac_at_encoder_deps="audiotoolbox"
2667 alac_at_encoder_select="audio_frame_queue"
2668 ilbc_at_encoder_deps="audiotoolbox"
2669 ilbc_at_encoder_select="audio_frame_queue"
2670 pcm_alaw_at_encoder_deps="audiotoolbox"
2671 pcm_alaw_at_encoder_select="audio_frame_queue"
2672 pcm_mulaw_at_encoder_deps="audiotoolbox"
2673 pcm_mulaw_at_encoder_select="audio_frame_queue"
2674 chromaprint_muxer_deps="chromaprint"
2675 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2676 libcelt_decoder_deps="libcelt"
2677 libdcadec_decoder_deps="libdcadec"
2678 libfaac_encoder_deps="libfaac"
2679 libfaac_encoder_select="audio_frame_queue"
2680 libfdk_aac_decoder_deps="libfdk_aac"
2681 libfdk_aac_encoder_deps="libfdk_aac"
2682 libfdk_aac_encoder_select="audio_frame_queue"
2683 libgme_demuxer_deps="libgme"
2684 libgsm_decoder_deps="libgsm"
2685 libgsm_encoder_deps="libgsm"
2686 libgsm_ms_decoder_deps="libgsm"
2687 libgsm_ms_encoder_deps="libgsm"
2688 libilbc_decoder_deps="libilbc"
2689 libilbc_encoder_deps="libilbc"
2690 libkvazaar_encoder_deps="libkvazaar"
2691 libmodplug_demuxer_deps="libmodplug"
2692 libmp3lame_encoder_deps="libmp3lame"
2693 libmp3lame_encoder_select="audio_frame_queue"
2694 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2695 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2696 libopencore_amrnb_encoder_select="audio_frame_queue"
2697 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2698 libopenh264_encoder_deps="libopenh264"
2699 libopenjpeg_decoder_deps="libopenjpeg"
2700 libopenjpeg_encoder_deps="libopenjpeg"
2701 libopus_decoder_deps="libopus"
2702 libopus_encoder_deps="libopus"
2703 libopus_encoder_select="audio_frame_queue"
2704 libschroedinger_decoder_deps="libschroedinger"
2705 libschroedinger_encoder_deps="libschroedinger"
2706 libshine_encoder_deps="libshine"
2707 libshine_encoder_select="audio_frame_queue"
2708 libspeex_decoder_deps="libspeex"
2709 libspeex_encoder_deps="libspeex"
2710 libspeex_encoder_select="audio_frame_queue"
2711 libtheora_encoder_deps="libtheora"
2712 libtwolame_encoder_deps="libtwolame"
2713 libutvideo_decoder_deps="libutvideo"
2714 libutvideo_encoder_deps="libutvideo"
2715 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2716 libvorbis_decoder_deps="libvorbis"
2717 libvorbis_encoder_deps="libvorbis"
2718 libvorbis_encoder_select="audio_frame_queue"
2719 libvpx_vp8_decoder_deps="libvpx"
2720 libvpx_vp8_encoder_deps="libvpx"
2721 libvpx_vp9_decoder_deps="libvpx"
2722 libvpx_vp9_encoder_deps="libvpx"
2723 libwavpack_encoder_deps="libwavpack"
2724 libwebp_encoder_deps="libwebp"
2725 libwebp_anim_encoder_deps="libwebp"
2726 libx262_encoder_deps="libx262"
2727 libx264_encoder_deps="libx264"
2728 libx264rgb_encoder_deps="libx264"
2729 libx264rgb_encoder_select="libx264_encoder"
2730 libx265_encoder_deps="libx265"
2731 libxavs_encoder_deps="libxavs"
2732 libxvid_encoder_deps="libxvid"
2733 libzvbi_teletext_decoder_deps="libzvbi"
2734 nvenc_encoder_deps="nvenc"
2735 nvenc_h264_encoder_deps="nvenc"
2736 nvenc_hevc_encoder_deps="nvenc"
2737 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2738 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2739 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2740 videotoolbox_encoder_suggest="vda_framework"
2741
2742 # demuxers / muxers
2743 ac3_demuxer_select="ac3_parser"
2744 asf_demuxer_select="riffdec"
2745 asf_o_demuxer_select="riffdec"
2746 asf_muxer_select="riffenc"
2747 asf_stream_muxer_select="asf_muxer"
2748 avi_demuxer_select="iso_media riffdec exif"
2749 avi_muxer_select="riffenc"
2750 avisynth_demuxer_deps="avisynth"
2751 avisynth_demuxer_select="riffdec"
2752 caf_demuxer_select="iso_media riffdec"
2753 dash_muxer_select="mp4_muxer"
2754 dirac_demuxer_select="dirac_parser"
2755 dts_demuxer_select="dca_parser"
2756 dtshd_demuxer_select="dca_parser"
2757 dv_demuxer_select="dvprofile"
2758 dv_muxer_select="dvprofile"
2759 dxa_demuxer_select="riffdec"
2760 eac3_demuxer_select="ac3_parser"
2761 f4v_muxer_select="mov_muxer"
2762 flac_demuxer_select="flac_parser"
2763 hds_muxer_select="flv_muxer"
2764 hls_muxer_select="mpegts_muxer"
2765 image2_alias_pix_demuxer_select="image2_demuxer"
2766 image2_brender_pix_demuxer_select="image2_demuxer"
2767 ipod_muxer_select="mov_muxer"
2768 ismv_muxer_select="mov_muxer"
2769 libnut_demuxer_deps="libnut"
2770 libnut_muxer_deps="libnut"
2771 matroska_audio_muxer_select="matroska_muxer"
2772 matroska_demuxer_select="iso_media riffdec"
2773 matroska_demuxer_suggest="bzlib lzo zlib"
2774 matroska_muxer_select="iso_media riffenc"
2775 mmf_muxer_select="riffenc"
2776 mov_demuxer_select="iso_media riffdec"
2777 mov_demuxer_suggest="zlib"
2778 mov_muxer_select="iso_media riffenc rtpenc_chain"
2779 mp3_demuxer_select="mpegaudio_parser"
2780 mp4_muxer_select="mov_muxer"
2781 mpegts_demuxer_select="iso_media"
2782 mpegts_muxer_select="adts_muxer latm_muxer"
2783 mpegtsraw_demuxer_select="mpegts_demuxer"
2784 mxf_d10_muxer_select="mxf_muxer"
2785 mxf_opatom_muxer_select="mxf_muxer"
2786 nut_muxer_select="riffenc"
2787 nuv_demuxer_select="riffdec"
2788 oga_muxer_select="ogg_muxer"
2789 ogg_demuxer_select="dirac_parse"
2790 opus_muxer_select="ogg_muxer"
2791 psp_muxer_select="mov_muxer"
2792 rtp_demuxer_select="sdp_demuxer"
2793 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2794 rtsp_demuxer_select="http_protocol rtpdec"
2795 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2796 sap_demuxer_select="sdp_demuxer"
2797 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2798 sdp_demuxer_select="rtpdec"
2799 smoothstreaming_muxer_select="ismv_muxer"
2800 spdif_muxer_select="aac_parser"
2801 spx_muxer_select="ogg_muxer"
2802 swf_demuxer_suggest="zlib"
2803 tak_demuxer_select="tak_parser"
2804 tg2_muxer_select="mov_muxer"
2805 tgp_muxer_select="mov_muxer"
2806 vobsub_demuxer_select="mpegps_demuxer"
2807 w64_demuxer_select="wav_demuxer"
2808 w64_muxer_select="wav_muxer"
2809 wav_demuxer_select="riffdec"
2810 wav_muxer_select="riffenc"
2811 webm_muxer_select="iso_media riffenc"
2812 webm_dash_manifest_demuxer_select="matroska_demuxer"
2813 wtv_demuxer_select="mpegts_demuxer riffdec"
2814 wtv_muxer_select="mpegts_muxer riffenc"
2815 xmv_demuxer_select="riffdec"
2816 xwma_demuxer_select="riffdec"
2817
2818 # indevs / outdevs
2819 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2820 alsa_outdev_deps="alsa_asoundlib_h"
2821 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2822 avfoundation_indev_select="avfoundation"
2823 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2824 caca_outdev_deps="libcaca"
2825 decklink_indev_deps="decklink pthreads"
2826 decklink_indev_extralibs="-lstdc++"
2827 decklink_outdev_deps="decklink pthreads"
2828 decklink_outdev_extralibs="-lstdc++"
2829 dshow_indev_deps="IBaseFilter"
2830 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2831 dv1394_indev_deps="dv1394"
2832 dv1394_indev_select="dv_demuxer"
2833 fbdev_indev_deps="linux_fb_h"
2834 fbdev_outdev_deps="linux_fb_h"
2835 gdigrab_indev_deps="CreateDIBSection"
2836 gdigrab_indev_extralibs="-lgdi32"
2837 gdigrab_indev_select="bmp_decoder"
2838 iec61883_indev_deps="libiec61883"
2839 jack_indev_deps="jack_jack_h"
2840 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2841 lavfi_indev_deps="avfilter"
2842 libcdio_indev_deps="libcdio"
2843 libdc1394_indev_deps="libdc1394"
2844 libv4l2_indev_deps="libv4l2"
2845 openal_indev_deps="openal"
2846 opengl_outdev_deps="opengl"
2847 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2848 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2849 pulse_indev_deps="libpulse"
2850 pulse_outdev_deps="libpulse"
2851 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2852 qtkit_indev_select="qtkit"
2853 sdl_outdev_deps="sdl"
2854 sndio_indev_deps="sndio_h"
2855 sndio_outdev_deps="sndio_h"
2856 v4l_indev_deps="linux_videodev_h"
2857 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2858 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2859 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2860 vfwcap_indev_extralibs="-lavicap32"
2861 x11grab_indev_deps="x11grab"
2862 x11grab_xcb_indev_deps="libxcb"
2863 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2864 xv_outdev_extralibs="-lXv -lX11 -lXext"
2865
2866 # protocols
2867 async_protocol_deps="threads"
2868 bluray_protocol_deps="libbluray"
2869 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2870 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2871 ffrtmpcrypt_protocol_select="tcp_protocol"
2872 ffrtmphttp_protocol_deps="!librtmp_protocol"
2873 ffrtmphttp_protocol_select="http_protocol"
2874 ftp_protocol_select="tcp_protocol"
2875 gopher_protocol_select="network"
2876 http_protocol_select="tcp_protocol"
2877 httpproxy_protocol_select="tcp_protocol"
2878 https_protocol_select="tls_protocol"
2879 icecast_protocol_select="http_protocol"
2880 librtmp_protocol_deps="librtmp"
2881 librtmpe_protocol_deps="librtmp"
2882 librtmps_protocol_deps="librtmp"
2883 librtmpt_protocol_deps="librtmp"
2884 librtmpte_protocol_deps="librtmp"
2885 libsmbclient_protocol_deps="libsmbclient gplv3"
2886 libssh_protocol_deps="libssh"
2887 mmsh_protocol_select="http_protocol"
2888 mmst_protocol_select="network"
2889 rtmp_protocol_deps="!librtmp_protocol"
2890 rtmp_protocol_select="tcp_protocol"
2891 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2892 rtmps_protocol_deps="!librtmp_protocol"
2893 rtmps_protocol_select="tls_protocol"
2894 rtmpt_protocol_select="ffrtmphttp_protocol"
2895 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2896 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2897 rtp_protocol_select="udp_protocol"
2898 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2899 sctp_protocol_select="network"
2900 srtp_protocol_select="rtp_protocol"
2901 tcp_protocol_select="network"
2902 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2903 tls_gnutls_protocol_select="tcp_protocol"
2904 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2905 tls_openssl_protocol_select="tcp_protocol"
2906 tls_schannel_protocol_deps="schannel"
2907 tls_schannel_protocol_select="tcp_protocol"
2908 tls_securetransport_protocol_deps="securetransport"
2909 tls_securetransport_protocol_select="tcp_protocol"
2910 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2911 udp_protocol_select="network"
2912 udplite_protocol_select="network"
2913 unix_protocol_deps="sys_un_h"
2914 unix_protocol_select="network"
2915
2916 # filters
2917 afftfilt_filter_deps="avcodec"
2918 afftfilt_filter_select="fft"
2919 amovie_filter_deps="avcodec avformat"
2920 aresample_filter_deps="swresample"
2921 ass_filter_deps="libass"
2922 asyncts_filter_deps="avresample"
2923 atempo_filter_deps="avcodec"
2924 atempo_filter_select="rdft"
2925 azmq_filter_deps="libzmq"
2926 blackframe_filter_deps="gpl"
2927 boxblur_filter_deps="gpl"
2928 bs2b_filter_deps="libbs2b"
2929 colormatrix_filter_deps="gpl"
2930 cover_rect_filter_deps="avcodec avformat gpl"
2931 cropdetect_filter_deps="gpl"
2932 delogo_filter_deps="gpl"
2933 deshake_filter_select="pixelutils"
2934 drawtext_filter_deps="libfreetype"
2935 ebur128_filter_deps="gpl"
2936 eq_filter_deps="gpl"
2937 fftfilt_filter_deps="avcodec"
2938 fftfilt_filter_select="rdft"
2939 find_rect_filter_deps="avcodec avformat gpl"
2940 firequalizer_filter_deps="avcodec"
2941 firequalizer_filter_select="rdft"
2942 flite_filter_deps="libflite"
2943 frei0r_filter_deps="frei0r dlopen"
2944 frei0r_src_filter_deps="frei0r dlopen"
2945 fspp_filter_deps="gpl"
2946 geq_filter_deps="gpl"
2947 histeq_filter_deps="gpl"
2948 hqdn3d_filter_deps="gpl"
2949 hwupload_cuda_filter_deps="cuda"
2950 interlace_filter_deps="gpl"
2951 kerndeint_filter_deps="gpl"
2952 ladspa_filter_deps="ladspa dlopen"
2953 mcdeint_filter_deps="avcodec gpl"
2954 movie_filter_deps="avcodec avformat"
2955 mpdecimate_filter_deps="gpl"
2956 mpdecimate_filter_select="pixelutils"
2957 mptestsrc_filter_deps="gpl"
2958 negate_filter_deps="lut_filter"
2959 nnedi_filter_deps="gpl"
2960 ocr_filter_deps="libtesseract"
2961 ocv_filter_deps="libopencv"
2962 owdenoise_filter_deps="gpl"
2963 pan_filter_deps="swresample"
2964 perspective_filter_deps="gpl"
2965 phase_filter_deps="gpl"
2966 pp7_filter_deps="gpl"
2967 pp_filter_deps="gpl postproc"
2968 pullup_filter_deps="gpl"
2969 removelogo_filter_deps="avcodec avformat swscale"
2970 repeatfields_filter_deps="gpl"
2971 resample_filter_deps="avresample"
2972 rubberband_filter_deps="librubberband"
2973 sab_filter_deps="gpl swscale"
2974 scale2ref_filter_deps="swscale"
2975 scale_filter_deps="swscale"
2976 select_filter_select="pixelutils"
2977 showcqt_filter_deps="avcodec avformat swscale"
2978 showcqt_filter_select="fft"
2979 showfreqs_filter_deps="avcodec"
2980 showfreqs_filter_select="fft"
2981 showspectrum_filter_deps="avcodec"
2982 showspectrum_filter_select="fft"
2983 showspectrumpic_filter_deps="avcodec"
2984 showspectrumpic_filter_select="fft"
2985 smartblur_filter_deps="gpl swscale"
2986 sofalizer_filter_deps="netcdf avcodec"
2987 sofalizer_filter_select="fft"
2988 spectrumsynth_filter_deps="avcodec"
2989 spectrumsynth_filter_select="fft"
2990 spp_filter_deps="gpl avcodec"
2991 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2992 stereo3d_filter_deps="gpl"
2993 subtitles_filter_deps="avformat avcodec libass"
2994 super2xsai_filter_deps="gpl"
2995 pixfmts_super2xsai_test_deps="super2xsai_filter"
2996 tinterlace_filter_deps="gpl"
2997 tinterlace_merge_test_deps="tinterlace_filter"
2998 tinterlace_pad_test_deps="tinterlace_filter"
2999 uspp_filter_deps="gpl avcodec"
3000 vidstabdetect_filter_deps="libvidstab"
3001 vidstabtransform_filter_deps="libvidstab"
3002 zmq_filter_deps="libzmq"
3003 zoompan_filter_deps="swscale"
3004 zscale_filter_deps="libzimg"
3005
3006 # examples
3007 avcodec_example_deps="avcodec avutil"
3008 avio_dir_cmd="avformat avutil"
3009 avio_reading="avformat avcodec avutil"
3010 decoding_encoding_example_deps="avcodec avformat avutil"
3011 demuxing_decoding_example_deps="avcodec avformat avutil"
3012 extract_mvs_example_deps="avcodec avformat avutil"
3013 filter_audio_example_deps="avfilter avutil"
3014 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3015 filtering_video_example_deps="avfilter avcodec avformat avutil"
3016 metadata_example_deps="avformat avutil"
3017 muxing_example_deps="avcodec avformat avutil swscale"
3018 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3019 remuxing_example_deps="avcodec avformat avutil"
3020 resampling_audio_example_deps="avutil swresample"
3021 scaling_video_example_deps="avutil swscale"
3022 transcode_aac_example_deps="avcodec avformat swresample"
3023 transcoding_example_deps="avfilter avcodec avformat avutil"
3024
3025 # libraries, in linking order
3026 avcodec_deps="avutil"
3027 avdevice_deps="avformat avcodec avutil"
3028 avfilter_deps="avutil"
3029 avformat_deps="avcodec avutil"
3030 avresample_deps="avutil"
3031 postproc_deps="avutil gpl"
3032 swresample_deps="avutil"
3033 swscale_deps="avutil"
3034
3035 # programs
3036 ffmpeg_deps="avcodec avfilter avformat swresample"
3037 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3038                null_filter
3039                setpts_filter trim_filter"
3040 ffplay_deps="avcodec avformat swscale swresample sdl"
3041 ffplay_libs='$sdl_libs'
3042 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3043 ffprobe_deps="avcodec avformat"
3044 ffserver_deps="avformat fork sarestart"
3045 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3046
3047 # documentation
3048 podpages_deps="perl"
3049 manpages_deps="perl pod2man"
3050 htmlpages_deps="perl"
3051 htmlpages_deps_any="makeinfo_html texi2html"
3052 txtpages_deps="perl makeinfo"
3053 doc_deps_any="manpages htmlpages podpages txtpages"
3054
3055 # default parameters
3056
3057 logfile="config.log"
3058
3059 # installation paths
3060 prefix_default="/usr/local"
3061 bindir_default='${prefix}/bin'
3062 datadir_default='${prefix}/share/ffmpeg'
3063 docdir_default='${prefix}/share/doc/ffmpeg'
3064 incdir_default='${prefix}/include'
3065 libdir_default='${prefix}/lib'
3066 mandir_default='${prefix}/share/man'
3067
3068 # toolchain
3069 ar_default="ar"
3070 cc_default="gcc"
3071 cxx_default="g++"
3072 host_cc_default="gcc"
3073 cp_f="cp -f"
3074 doxygen_default="doxygen"
3075 install="install"
3076 ln_s="ln -s -f"
3077 nm_default="nm -g"
3078 objformat="elf"
3079 pkg_config_default=pkg-config
3080 ranlib_default="ranlib"
3081 strip_default="strip"
3082 yasmexe_default="yasm"
3083 windres_default="windres"
3084
3085 # OS
3086 target_os_default=$(tolower $(uname -s))
3087 host_os=$target_os_default
3088
3089 # machine
3090 if test "$target_os_default" = aix; then
3091     arch_default=$(uname -p)
3092     strip_default="strip -X32_64"
3093 else
3094     arch_default=$(uname -m)
3095 fi
3096 cpu="generic"
3097 intrinsics="none"
3098
3099 # configurable options
3100 enable $PROGRAM_LIST
3101 enable $DOCUMENT_LIST
3102 enable $EXAMPLE_LIST
3103 enable $(filter_out avresample $LIBRARY_LIST)
3104 enable stripping
3105
3106 enable asm
3107 enable debug
3108 enable doc
3109 enable faan faandct faanidct
3110 enable optimizations
3111 enable runtime_cpudetect
3112 enable safe_bitstream_reader
3113 enable static
3114 enable swscale_alpha
3115 enable valgrind_backtrace
3116
3117 sws_max_filter_size_default=256
3118 set_default sws_max_filter_size
3119
3120 # Enable platform codecs by default.
3121 enable audiotoolbox
3122
3123 # Enable hwaccels by default.
3124 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3125 enable xlib
3126
3127 enable vda_framework videotoolbox videotoolbox_encoder
3128
3129 # build settings
3130 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3131 LIBPREF="lib"
3132 LIBSUF=".a"
3133 FULLNAME='$(NAME)$(BUILDSUF)'
3134 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3135 SLIBPREF="lib"
3136 SLIBSUF=".so"
3137 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3138 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3139 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3140 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3141 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3142 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3143
3144 asflags_filter=echo
3145 cflags_filter=echo
3146 ldflags_filter=echo
3147
3148 AS_C='-c'
3149 AS_O='-o $@'
3150 CC_C='-c'
3151 CC_E='-E -o $@'
3152 CC_O='-o $@'
3153 CXX_C='-c'
3154 CXX_O='-o $@'
3155 OBJCC_C='-c'
3156 OBJCC_E='-E -o $@'
3157 OBJCC_O='-o $@'
3158 LD_O='-o $@'
3159 LD_LIB='-l%'
3160 LD_PATH='-L'
3161 HOSTCC_C='-c'
3162 HOSTCC_E='-E -o $@'
3163 HOSTCC_O='-o $@'
3164 HOSTLD_O='-o $@'
3165
3166 host_libs='-lm'
3167 host_cflags_filter=echo
3168 host_ldflags_filter=echo
3169
3170 target_path='$(CURDIR)'
3171
3172 # since the object filename is not given with the -MM flag, the compiler
3173 # is only able to print the basename, and we must add the path ourselves
3174 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3175 DEPFLAGS='-MM'
3176
3177 # find source path
3178 if test -f configure; then
3179     source_path=.
3180 else
3181     source_path=$(cd $(dirname "$0"); pwd)
3182     case "$source_path" in
3183         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3184     esac
3185     test -e "$source_path/config.h" &&
3186         die "Out of tree builds are impossible with config.h in source dir."
3187 fi
3188
3189 for v in "$@"; do
3190     r=${v#*=}
3191     l=${v%"$r"}
3192     r=$(sh_quote "$r")
3193     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3194 done
3195
3196 find_things(){
3197     thing=$1
3198     pattern=$2
3199     file=$source_path/$3
3200     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3201 }
3202
3203 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3204 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3205 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3206 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3207 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3208 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3209 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3210 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3211 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3212 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3213
3214 find_things_extern(){
3215     thing=$1
3216     pattern=$2
3217     file=$source_path/$3
3218     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3219 }
3220
3221 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3222
3223 ALL_COMPONENTS="
3224     $BSF_LIST
3225     $DECODER_LIST
3226     $DEMUXER_LIST
3227     $ENCODER_LIST
3228     $FILTER_LIST
3229     $HWACCEL_LIST
3230     $INDEV_LIST
3231     $MUXER_LIST
3232     $OUTDEV_LIST
3233     $PARSER_LIST
3234     $PROTOCOL_LIST
3235 "
3236
3237 for n in $COMPONENT_LIST; do
3238     v=$(toupper ${n%s})_LIST
3239     eval enable \$$v
3240     eval ${n}_if_any="\$$v"
3241 done
3242
3243 enable $ARCH_EXT_LIST
3244
3245 die_unknown(){
3246     echo "Unknown option \"$1\"."
3247     echo "See $0 --help for available options."
3248     exit 1
3249 }
3250
3251 print_in_columns() {
3252     cols=$(expr $ncols / 24)
3253     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3254 }
3255
3256 show_list() {
3257     suffix=_$1
3258     shift
3259     echo $* | sed s/$suffix//g | print_in_columns
3260     exit 0
3261 }
3262
3263 rand_list(){
3264     IFS=', '
3265     set -- $*
3266     unset IFS
3267     for thing; do
3268         comp=${thing%:*}
3269         prob=${thing#$comp}
3270         prob=${prob#:}
3271         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3272         echo "prob ${prob:-0.5}"
3273         printf '%s\n' $comp
3274     done
3275 }
3276
3277 do_random(){
3278     action=$1
3279     shift
3280     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3281     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3282 }
3283
3284 for opt do
3285     optval="${opt#*=}"
3286     case "$opt" in
3287         --extra-ldflags=*)
3288             add_ldflags $optval
3289         ;;
3290         --extra-ldexeflags=*)
3291             add_ldexeflags $optval
3292         ;;
3293         --extra-ldlibflags=*)
3294             add_ldlibflags $optval
3295         ;;
3296         --extra-libs=*)
3297             add_extralibs $optval
3298         ;;
3299         --disable-devices)
3300             disable $INDEV_LIST $OUTDEV_LIST
3301         ;;
3302         --enable-debug=*)
3303             debuglevel="$optval"
3304         ;;
3305         --disable-programs)
3306             disable $PROGRAM_LIST
3307         ;;
3308         --disable-everything)
3309             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3310         ;;
3311         --disable-all)
3312             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3313             disable $LIBRARY_LIST $PROGRAM_LIST doc
3314             enable avutil
3315         ;;
3316         --enable-random|--disable-random)
3317             action=${opt%%-random}
3318             do_random ${action#--} $COMPONENT_LIST
3319         ;;
3320         --enable-random=*|--disable-random=*)
3321             action=${opt%%-random=*}
3322             do_random ${action#--} $optval
3323         ;;
3324         --enable-*=*|--disable-*=*)
3325             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3326             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3327             eval list=\$$(toupper $thing)_LIST
3328             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3329             list=$(filter "$name" $list)
3330             [ "$list" = "" ] && warn "Option $opt did not match anything"
3331             $action $list
3332         ;;
3333         --enable-?*|--disable-?*)
3334             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3335             if is_in $option $COMPONENT_LIST; then
3336                 test $action = disable && action=unset
3337                 eval $action \$$(toupper ${option%s})_LIST
3338             elif is_in $option $CMDLINE_SELECT; then
3339                 $action $option
3340             else
3341                 die_unknown $opt
3342             fi
3343         ;;
3344         --list-*)
3345             NAME="${opt#--list-}"
3346             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3347             NAME=${NAME%s}
3348             eval show_list $NAME \$$(toupper $NAME)_LIST
3349         ;;
3350         --help|-h) show_help
3351         ;;
3352         --fatal-warnings) enable fatal_warnings
3353         ;;
3354         *)
3355             optname="${opt%%=*}"
3356             optname="${optname#--}"
3357             optname=$(echo "$optname" | sed 's/-/_/g')
3358             if is_in $optname $CMDLINE_SET; then
3359                 eval $optname='$optval'
3360             elif is_in $optname $CMDLINE_APPEND; then
3361                 append $optname "$optval"
3362             else
3363                 die_unknown $opt
3364             fi
3365         ;;
3366     esac
3367 done
3368
3369 for e in $env; do
3370     eval "export $e"
3371 done
3372
3373 disabled logging && logfile=/dev/null
3374
3375 # Disable all the library-specific components if the library itself
3376 # is disabled, see AVCODEC_LIST and following _LIST variables.
3377
3378 disable_components(){
3379     disabled ${1} && disable $(
3380         eval components="\$$(toupper ${1})_COMPONENTS"
3381         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3382     )
3383 }
3384
3385 map 'disable_components $v' $LIBRARY_LIST
3386
3387 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3388 set >> $logfile
3389
3390 test -n "$valgrind" && toolchain="valgrind-memcheck"
3391
3392 case "$toolchain" in
3393     *-asan)
3394         cc_default="${toolchain%-asan}"
3395         add_cflags  -fsanitize=address
3396         add_ldflags -fsanitize=address
3397     ;;
3398     *-tsan)
3399         cc_default="${toolchain%-tsan}"
3400         add_cflags  -fsanitize=thread -pie
3401         add_ldflags -fsanitize=thread -pie
3402         case "$toolchain" in
3403             gcc-tsan)
3404                 add_cflags  -fPIC
3405                 add_ldflags -fPIC
3406                 ;;
3407         esac
3408     ;;
3409     *-usan)
3410         cc_default="${toolchain%-usan}"
3411         add_cflags  -fsanitize=undefined
3412         add_ldflags -fsanitize=undefined
3413     ;;
3414     valgrind-*)
3415         target_exec_default="valgrind"
3416         case "$toolchain" in
3417             valgrind-massif)
3418                 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"
3419                 ;;
3420             valgrind-memcheck)
3421                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3422                 ;;
3423         esac
3424     ;;
3425     msvc)
3426         # Check whether the current MSVC version needs the C99 converter.
3427         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3428         # support enough of C99 to build ffmpeg. Default to the new
3429         # behaviour if the regexp was unable to match anything, since this
3430         # successfully parses the version number of existing supported
3431         # versions that require the converter (MSVC 2010 and 2012).
3432         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3433         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3434             cc_default="cl"
3435         else
3436             cc_default="c99wrap cl"
3437         fi
3438         ld_default="$source_path/compat/windows/mslink"
3439         nm_default="dumpbin -symbols"
3440         ar_default="lib"
3441         case "$arch" in
3442         arm*)
3443             as_default="armasm"
3444             ;;
3445         esac
3446         target_os_default="win32"
3447         # Use a relative path for TMPDIR. This makes sure all the
3448         # ffconf temp files are written with a relative path, avoiding
3449         # issues with msys/win32 path conversion for MSVC parameters
3450         # such as -Fo<file> or -out:<file>.
3451         TMPDIR=.
3452     ;;
3453     icl)
3454         cc_default="icl"
3455         ld_default="xilink"
3456         nm_default="dumpbin -symbols"
3457         ar_default="xilib"
3458         target_os_default="win32"
3459         TMPDIR=.
3460     ;;
3461     gcov)
3462         add_cflags  -fprofile-arcs -ftest-coverage
3463         add_ldflags -fprofile-arcs -ftest-coverage
3464     ;;
3465     hardened)
3466         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3467         add_cflags   -fno-strict-overflow -fstack-protector-all
3468         add_ldflags  -Wl,-z,relro -Wl,-z,now
3469     ;;
3470     ?*)
3471         die "Unknown toolchain $toolchain"
3472     ;;
3473 esac
3474
3475 test -n "$cross_prefix" && enable cross_compile
3476
3477 if enabled cross_compile; then
3478     test -n "$arch" && test -n "$target_os" ||
3479         die "Must specify target arch and OS when cross-compiling"
3480 fi
3481
3482 ar_default="${cross_prefix}${ar_default}"
3483 cc_default="${cross_prefix}${cc_default}"
3484 cxx_default="${cross_prefix}${cxx_default}"
3485 nm_default="${cross_prefix}${nm_default}"
3486 pkg_config_default="${cross_prefix}${pkg_config_default}"
3487 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3488     ranlib_default="${cross_prefix}${ranlib_default} -D"
3489 else
3490     ranlib_default="${cross_prefix}${ranlib_default}"
3491 fi
3492 strip_default="${cross_prefix}${strip_default}"
3493 windres_default="${cross_prefix}${windres_default}"
3494
3495 sysinclude_default="${sysroot}/usr/include"
3496
3497 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3498     target_exec target_os yasmexe
3499 enabled cross_compile || host_cc_default=$cc
3500 set_default host_cc
3501
3502 pkg_config_fail_message=""
3503 if ! $pkg_config --version >/dev/null 2>&1; then
3504     warn "$pkg_config not found, library detection may fail."
3505     pkg_config=false
3506 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3507     pkg_config_fail_message="
3508 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3509 fi
3510
3511 if test $doxygen != $doxygen_default && \
3512   ! $doxygen --version >/dev/null 2>&1; then
3513     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3514 fi
3515
3516 exesuf() {
3517     case $1 in
3518         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3519     esac
3520 }
3521
3522 EXESUF=$(exesuf $target_os)
3523 HOSTEXESUF=$(exesuf $host_os)
3524
3525 # set temporary file name
3526 : ${TMPDIR:=$TEMPDIR}
3527 : ${TMPDIR:=$TMP}
3528 : ${TMPDIR:=/tmp}
3529
3530 if [ -n "$tempprefix" ] ; then
3531     mktemp(){
3532         echo $tempprefix.${HOSTNAME}.${UID}
3533     }
3534 elif ! check_cmd mktemp -u XXXXXX; then
3535     # simple replacement for missing mktemp
3536     # NOT SAFE FOR GENERAL USE
3537     mktemp(){
3538         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3539     }
3540 fi
3541
3542 tmpfile(){
3543     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3544         (set -C; exec > $tmp) 2>/dev/null ||
3545         die "Unable to create temporary file in $TMPDIR."
3546     append TMPFILES $tmp
3547     eval $1=$tmp
3548 }
3549
3550 trap 'rm -f -- $TMPFILES' EXIT
3551
3552 tmpfile TMPASM .asm
3553 tmpfile TMPC   .c
3554 tmpfile TMPCPP .cpp
3555 tmpfile TMPE   $EXESUF
3556 tmpfile TMPH   .h
3557 tmpfile TMPM   .m
3558 tmpfile TMPO   .o
3559 tmpfile TMPS   .S
3560 tmpfile TMPSH  .sh
3561 tmpfile TMPV   .ver
3562
3563 unset -f mktemp
3564
3565 chmod +x $TMPE
3566
3567 # make sure we can execute files in $TMPDIR
3568 cat > $TMPSH 2>> $logfile <<EOF
3569 #! /bin/sh
3570 EOF
3571 chmod +x $TMPSH >> $logfile 2>&1
3572 if ! $TMPSH >> $logfile 2>&1; then
3573     cat <<EOF
3574 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3575 variable to another directory and make sure that it is not mounted noexec.
3576 EOF
3577     die "Sanity test failed."
3578 fi
3579
3580 armasm_flags(){
3581     for flag; do
3582         case $flag in
3583             # Filter out MSVC cl.exe options from cflags that shouldn't
3584             # be passed to gas-preprocessor
3585             -M[TD]*)                                            ;;
3586             *)                  echo $flag                      ;;
3587         esac
3588    done
3589 }
3590
3591 ccc_flags(){
3592     for flag; do
3593         case $flag in
3594             -std=c99)           echo -c99                       ;;
3595             -mcpu=*)            echo -arch ${flag#*=}           ;;
3596             -mieee)             echo -ieee                      ;;
3597             -O*|-fast)          echo $flag                      ;;
3598             -fno-math-errno)    echo -assume nomath_errno       ;;
3599             -g)                 echo -g3                        ;;
3600             -Wall)              echo -msg_enable level2         ;;
3601             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3602             -Wl,*)              echo $flag                      ;;
3603             -f*|-W*)                                            ;;
3604             *)                  echo $flag                      ;;
3605         esac
3606    done
3607 }
3608
3609 cparser_flags(){
3610     for flag; do
3611         case $flag in
3612             -Wno-switch)             echo -Wno-switch-enum ;;
3613             -Wno-format-zero-length) ;;
3614             -Wdisabled-optimization) ;;
3615             -Wno-pointer-sign)       echo -Wno-other ;;
3616             *)                       echo $flag ;;
3617         esac
3618     done
3619 }
3620
3621 msvc_common_flags(){
3622     for flag; do
3623         case $flag in
3624             # In addition to specifying certain flags under the compiler
3625             # specific filters, they must be specified here as well or else the
3626             # generic catch all at the bottom will print the original flag.
3627             -Wall)                ;;
3628             -std=c99)             ;;
3629             # Common flags
3630             -fomit-frame-pointer) ;;
3631             -g)                   echo -Z7 ;;
3632             -fno-math-errno)      ;;
3633             -fno-common)          ;;
3634             -fno-signed-zeros)    ;;
3635             -fPIC)                ;;
3636             -mthumb)              ;;
3637             -march=*)             ;;
3638             -lz)                  echo zlib.lib ;;
3639             -lavifil32)           echo vfw32.lib ;;
3640             -lavicap32)           echo vfw32.lib user32.lib ;;
3641             -lx264)               echo libx264.lib ;;
3642             -l*)                  echo ${flag#-l}.lib ;;
3643             -LARGEADDRESSAWARE)   echo $flag ;;
3644             -L*)                  echo -libpath:${flag#-L} ;;
3645             *)                    echo $flag ;;
3646         esac
3647     done
3648 }
3649
3650 msvc_flags(){
3651     msvc_common_flags "$@"
3652     for flag; do
3653         case $flag in
3654             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3655                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3656                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3657                                        -wd4307 \
3658                                        -wd4273 -wd4554 -wd4701 ;;
3659         esac
3660     done
3661 }
3662
3663 icl_flags(){
3664     msvc_common_flags "$@"
3665     for flag; do
3666         case $flag in
3667             # Despite what Intel's documentation says -Wall, which is supported
3668             # on Windows, does enable remarks so disable them here.
3669             -Wall)                echo $flag -Qdiag-disable:remark ;;
3670             -std=c99)             echo -Qstd=c99 ;;
3671             -flto)                echo -ipo ;;
3672         esac
3673     done
3674 }
3675
3676 icc_flags(){
3677     for flag; do
3678         case $flag in
3679             -flto)                echo -ipo ;;
3680             *)                    echo $flag ;;
3681         esac
3682     done
3683 }
3684
3685 pgi_flags(){
3686     for flag; do
3687         case $flag in
3688             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3689             -fomit-frame-pointer) echo -Mnoframe ;;
3690             -g)                   echo -gopt ;;
3691             *)                    echo $flag ;;
3692         esac
3693     done
3694 }
3695
3696 suncc_flags(){
3697     for flag; do
3698         case $flag in
3699             -march=*|-mcpu=*)
3700                 case "${flag#*=}" in
3701                     native)                   echo -xtarget=native       ;;
3702                     v9|niagara)               echo -xarch=sparc          ;;
3703                     ultrasparc)               echo -xarch=sparcvis       ;;
3704                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3705                     i586|pentium)             echo -xchip=pentium        ;;
3706                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3707                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3708                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3709                     pentium4*)          echo -xtarget=pentium4           ;;
3710                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3711                     *-sse3)             echo -xarch=sse3                 ;;
3712                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3713                     bonnell)                   echo -xarch=ssse3         ;;
3714                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3715                     westmere)                  echo -xtarget=westmere    ;;
3716                     silvermont)                echo -xarch=sse4_2        ;;
3717                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3718                     core-avx*|ivybridge|haswell|broadwell)
3719                                                echo -xarch=avx           ;;
3720                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3721                     btver1)                    echo -xarch=amdsse4a      ;;
3722                     btver2|bdver*)             echo -xarch=avx           ;;
3723                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3724                     k8|opteron|athlon64|athlon-fx)
3725                                                echo -xarch=sse2a         ;;
3726                     athlon*)                   echo -xarch=pentium_proa  ;;
3727                 esac
3728                 ;;
3729             -std=c99)             echo -xc99              ;;
3730             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3731             -fPIC)                echo -KPIC -xcode=pic32 ;;
3732             -W*,*)                echo $flag              ;;
3733             -f*-*|-W*|-mimpure-text)                      ;;
3734             -shared)              echo -G                 ;;
3735             *)                    echo $flag              ;;
3736         esac
3737     done
3738 }
3739
3740 tms470_flags(){
3741     for flag; do
3742         case $flag in
3743             -march=*|-mcpu=*)
3744                 case "${flag#*=}" in
3745                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3746                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3747                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3748                     armv6*|arm11*)          echo -mv=6   ;;
3749                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3750                                             echo -mv=5e  ;;
3751                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3752                 esac
3753                 ;;
3754             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3755             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3756             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3757             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3758             -msoft-float)   echo --float_support=vfplib       ;;
3759             -O[0-3]|-mf=*)  echo $flag                        ;;
3760             -g)             echo -g -mn                       ;;
3761             -pds=*)         echo $flag                        ;;
3762             -D*|-I*)        echo $flag                        ;;
3763             --gcc|--abi=*)  echo $flag                        ;;
3764             -me)            echo $flag                        ;;
3765         esac
3766     done
3767 }
3768
3769 probe_cc(){
3770     pfx=$1
3771     _cc=$2
3772     first=$3
3773
3774     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3775     unset _ld_o _ldflags _ld_lib _ld_path
3776     unset _depflags _DEPCMD _DEPFLAGS
3777     _flags_filter=echo
3778
3779     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3780         true # no-op to avoid reading stdin in following checks
3781     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3782         _type=llvm_gcc
3783         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3784         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3785         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3786         _cflags_speed='-O3'
3787         _cflags_size='-Os'
3788     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3789         _type=gcc
3790         gcc_version=$($_cc --version | head -n1)
3791         gcc_basever=$($_cc -dumpversion)
3792         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3793         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3794         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3795         case $gcc_basever in
3796             2) ;;
3797             2.*) ;;
3798             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3799         esac
3800         if [ "$first" = true ]; then
3801             case $gcc_basever in
3802                 4.2*)
3803                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3804             esac
3805         fi
3806         _cflags_speed='-O3'
3807         _cflags_size='-Os'
3808     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3809         _type=icc
3810         _ident=$($_cc --version | head -n1)
3811         _depflags='-MMD'
3812         _cflags_speed='-O3'
3813         _cflags_size='-Os'
3814         _cflags_noopt='-O1'
3815         _flags_filter=icc_flags
3816     elif $_cc -v 2>&1 | grep -q xlc; then
3817         _type=xlc
3818         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3819         _cflags_speed='-O5'
3820         _cflags_size='-O5 -qcompact'
3821     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3822         _type=ccc
3823         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3824         _DEPFLAGS='-M'
3825         _cflags_speed='-fast'
3826         _cflags_size='-O1'
3827         _flags_filter=ccc_flags
3828     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3829         test -d "$sysroot" || die "No valid sysroot specified."
3830         _type=armcc
3831         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3832         armcc_conf="$PWD/armcc.conf"
3833         $_cc --arm_linux_configure                 \
3834              --arm_linux_config_file="$armcc_conf" \
3835              --configure_sysroot="$sysroot"        \
3836              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3837              die "Error creating armcc configuration file."
3838         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3839         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3840         as_default="${cross_prefix}gcc"
3841         _depflags='-MMD'
3842         _cflags_speed='-O3'
3843         _cflags_size='-Os'
3844     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3845         _type=tms470
3846         _ident=$($_cc -version | head -n1 | tr -s ' ')
3847         _flags='--gcc --abi=eabi -me'
3848         _cc_e='-ppl -fe=$@'
3849         _cc_o='-fe=$@'
3850         _depflags='-ppa -ppd=$(@:.o=.d)'
3851         _cflags_speed='-O3 -mf=5'
3852         _cflags_size='-O3 -mf=2'
3853         _flags_filter=tms470_flags
3854     elif $_cc -v 2>&1 | grep -q clang; then
3855         _type=clang
3856         _ident=$($_cc --version 2>/dev/null | head -n1)
3857         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3858         _cflags_speed='-O3'
3859         _cflags_size='-Os'
3860     elif $_cc -V 2>&1 | grep -q Sun; then
3861         _type=suncc
3862         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3863         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3864         _DEPFLAGS='-xM1 -xc99'
3865         _ldflags='-std=c99'
3866         _cflags_speed='-O5'
3867         _cflags_size='-O5 -xspace'
3868         _flags_filter=suncc_flags
3869     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3870         _type=pathscale
3871         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3872         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3873         _cflags_speed='-O2'
3874         _cflags_size='-Os'
3875         _flags_filter='filter_out -Wdisabled-optimization'
3876     elif $_cc -v 2>&1 | grep -q Open64; then
3877         _type=open64
3878         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3879         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3880         _cflags_speed='-O2'
3881         _cflags_size='-Os'
3882         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3883     elif $_cc -V 2>&1 | grep -q Portland; then
3884         _type=pgi
3885         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3886         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3887         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3888         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3889         _cflags_noopt="-O"
3890         _flags_filter=pgi_flags
3891     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3892         _type=armasm
3893         _ident=$($_cc | head -n1)
3894         # 4509: "This form of conditional instruction is deprecated"
3895         _flags="-nologo -ignore 4509"
3896         _flags_filter=armasm_flags
3897     elif $_cc 2>&1 | grep -q Intel; then
3898         _type=icl
3899         _ident=$($_cc 2>&1 | head -n1)
3900         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3901         # Not only is O3 broken on 13.x+ but it is slower on all previous
3902         # versions (tested) as well.
3903         _cflags_speed="-O2"
3904         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3905         if $_cc 2>&1 | grep -q Linker; then
3906             _ld_o='-out:$@'
3907         else
3908             _ld_o='-Fe$@'
3909         fi
3910         _cc_o='-Fo$@'
3911         _cc_e='-P'
3912         _flags_filter=icl_flags
3913         _ld_lib='lib%.a'
3914         _ld_path='-libpath:'
3915         # -Qdiag-error to make icl error when seeing certain unknown arguments
3916         _flags='-nologo -Qdiag-error:4044,10157'
3917         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3918         # with MSVC which enables it by default.
3919         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3920         disable stripping
3921     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3922         _type=msvc
3923         _ident=$($_cc 2>&1 | head -n1)
3924         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3925         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3926         _cflags_speed="-O2"
3927         _cflags_size="-O1"
3928         if $_cc -nologo- 2>&1 | grep -q Linker; then
3929             _ld_o='-out:$@'
3930         else
3931             _ld_o='-Fe$@'
3932         fi
3933         _cc_o='-Fo$@'
3934         _cc_e='-P -Fi$@'
3935         _flags_filter=msvc_flags
3936         _ld_lib='lib%.a'
3937         _ld_path='-libpath:'
3938         _flags='-nologo'
3939         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3940         disable stripping
3941     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3942         _type=cparser
3943         _ident=$($_cc --version | head -n1)
3944         _depflags='-MMD'
3945         _cflags_speed='-O4'
3946         _cflags_size='-O2'
3947         _flags_filter=cparser_flags
3948     fi
3949
3950     eval ${pfx}_type=\$_type
3951     eval ${pfx}_ident=\$_ident
3952 }
3953
3954 set_ccvars(){
3955     eval ${1}_C=\${_cc_c-\${${1}_C}}
3956     eval ${1}_E=\${_cc_e-\${${1}_E}}
3957     eval ${1}_O=\${_cc_o-\${${1}_O}}
3958
3959     if [ -n "$_depflags" ]; then
3960         eval ${1}_DEPFLAGS=\$_depflags
3961     else
3962         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3963         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3964         eval DEP${1}FLAGS=\$_flags
3965     fi
3966 }
3967
3968 probe_cc cc "$cc" "true"
3969 cflags_filter=$_flags_filter
3970 cflags_speed=$_cflags_speed
3971 cflags_size=$_cflags_size
3972 cflags_noopt=$_cflags_noopt
3973 add_cflags $_flags $_cflags
3974 cc_ldflags=$_ldflags
3975 set_ccvars CC
3976
3977 probe_cc hostcc "$host_cc"
3978 host_cflags_filter=$_flags_filter
3979 add_host_cflags  $_flags $_cflags
3980 set_ccvars HOSTCC
3981
3982 test -n "$cc_type" && enable $cc_type ||
3983     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3984
3985 : ${as_default:=$cc}
3986 : ${objcc_default:=$cc}
3987 : ${dep_cc_default:=$cc}
3988 : ${ld_default:=$cc}
3989 : ${host_ld_default:=$host_cc}
3990 set_default ar as objcc dep_cc ld host_ld windres
3991
3992 probe_cc as "$as"
3993 asflags_filter=$_flags_filter
3994 add_asflags $_flags $_cflags
3995 set_ccvars AS
3996
3997 probe_cc objcc "$objcc"
3998 objcflags_filter=$_flags_filter
3999 add_objcflags $_flags $_cflags
4000 set_ccvars OBJC
4001
4002 probe_cc ld "$ld"
4003 ldflags_filter=$_flags_filter
4004 add_ldflags $_flags $_ldflags
4005 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4006 LD_O=${_ld_o-$LD_O}
4007 LD_LIB=${_ld_lib-$LD_LIB}
4008 LD_PATH=${_ld_path-$LD_PATH}
4009
4010 probe_cc hostld "$host_ld"
4011 host_ldflags_filter=$_flags_filter
4012 add_host_ldflags $_flags $_ldflags
4013 HOSTLD_O=${_ld_o-$HOSTLD_O}
4014
4015 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4016     probe_cc depcc "$dep_cc"
4017     CCDEP=${_DEPCMD:-$DEPCMD}
4018     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4019     DEPCCFLAGS=$_flags
4020 fi
4021
4022 if $ar 2>&1 | grep -q Microsoft; then
4023     arflags="-nologo"
4024     ar_o='-out:$@'
4025 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4026     arflags="rq"
4027     ar_o='$@'
4028 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4029     arflags='-Xany -r -c'
4030     ar_o='$@'
4031 elif $ar 2>&1 | grep -q "\[D\] "; then
4032     arflags="rcD"
4033     ar_o='$@'
4034 else
4035     arflags="rc"
4036     ar_o='$@'
4037 fi
4038
4039 add_cflags $extra_cflags
4040 add_cxxflags $extra_cxxflags
4041 add_objcflags $extra_objcflags
4042 add_asflags $extra_cflags
4043
4044 if test -n "$sysroot"; then
4045     case "$cc_type" in
4046         gcc|llvm_gcc|clang)
4047             add_cppflags --sysroot="$sysroot"
4048             add_ldflags --sysroot="$sysroot"
4049 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4050             add_cppflags -isysroot "$sysroot"
4051             add_ldflags -isysroot "$sysroot"
4052         ;;
4053         tms470)
4054             add_cppflags -I"$sysinclude"
4055             add_ldflags  --sysroot="$sysroot"
4056         ;;
4057     esac
4058 fi
4059
4060 if test "$cpu" = host; then
4061     enabled cross_compile &&
4062         die "--cpu=host makes no sense when cross-compiling."
4063
4064     case "$cc_type" in
4065         gcc|llvm_gcc)
4066             check_native(){
4067                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4068                 sed -n "/cc1.*$1=/{
4069                             s/.*$1=\\([^ ]*\\).*/\\1/
4070                             p
4071                             q
4072                         }" $TMPE
4073             }
4074             cpu=$(check_native -march || check_native -mcpu)
4075         ;;
4076         clang)
4077             check_native(){
4078                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4079                 sed -n "/cc1.*-target-cpu /{
4080                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4081                             p
4082                             q
4083                         }" $TMPE
4084             }
4085             cpu=$(check_native -march)
4086         ;;
4087     esac
4088
4089     test "${cpu:-host}" = host &&
4090         die "--cpu=host not supported with compiler $cc"
4091 fi
4092
4093 # Deal with common $arch aliases
4094 case "$arch" in
4095     aarch64|arm64)
4096         arch="aarch64"
4097     ;;
4098     arm*|iPad*|iPhone*)
4099         arch="arm"
4100     ;;
4101     mips*|IP*)
4102         case "$arch" in
4103         *el)
4104             add_cppflags -EL
4105             add_ldflags -EL
4106         ;;
4107         *eb)
4108             add_cppflags -EB
4109             add_ldflags -EB
4110         ;;
4111         esac
4112         arch="mips"
4113     ;;
4114     parisc*|hppa*)
4115         arch="parisc"
4116     ;;
4117     "Power Macintosh"|ppc*|powerpc*)
4118         arch="ppc"
4119     ;;
4120     s390|s390x)
4121         arch="s390"
4122     ;;
4123     sh4|sh)
4124         arch="sh4"
4125     ;;
4126     sun4u|sparc*)
4127         arch="sparc"
4128     ;;
4129     tilegx|tile-gx)
4130         arch="tilegx"
4131     ;;
4132     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4133         arch="x86"
4134     ;;
4135 esac
4136
4137 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4138 enable $arch
4139
4140 # Add processor-specific flags
4141 if enabled aarch64; then
4142
4143     case $cpu in
4144         armv*)
4145             cpuflags="-march=$cpu"
4146         ;;
4147         *)
4148             cpuflags="-mcpu=$cpu"
4149         ;;
4150     esac
4151
4152 elif enabled alpha; then
4153
4154     cpuflags="-mcpu=$cpu"
4155
4156 elif enabled arm; then
4157
4158     check_arm_arch() {
4159         check_cpp_condition stddef.h \
4160             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4161             $cpuflags
4162     }
4163
4164     probe_arm_arch() {
4165         if   check_arm_arch 4;        then echo armv4;
4166         elif check_arm_arch 4T;       then echo armv4t;
4167         elif check_arm_arch 5;        then echo armv5;
4168         elif check_arm_arch 5E;       then echo armv5e;
4169         elif check_arm_arch 5T;       then echo armv5t;
4170         elif check_arm_arch 5TE;      then echo armv5te;
4171         elif check_arm_arch 5TEJ;     then echo armv5te;
4172         elif check_arm_arch 6;        then echo armv6;
4173         elif check_arm_arch 6J;       then echo armv6j;
4174         elif check_arm_arch 6K;       then echo armv6k;
4175         elif check_arm_arch 6Z;       then echo armv6z;
4176         elif check_arm_arch 6ZK;      then echo armv6zk;
4177         elif check_arm_arch 6T2;      then echo armv6t2;
4178         elif check_arm_arch 7;        then echo armv7;
4179         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4180         elif check_arm_arch 7S;       then echo armv7-a;
4181         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4182         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4183         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4184         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4185         fi
4186     }
4187
4188     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4189
4190     case $cpu in
4191         armv*)
4192             cpuflags="-march=$cpu"
4193             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4194         ;;
4195         *)
4196             cpuflags="-mcpu=$cpu"
4197             case $cpu in
4198                 cortex-a*)                               subarch=armv7a  ;;
4199                 cortex-r*)                               subarch=armv7r  ;;
4200                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4201                 arm11*)                                  subarch=armv6   ;;
4202                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4203                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4204                 *)                             subarch=$(probe_arm_arch) ;;
4205             esac
4206         ;;
4207     esac
4208
4209     case "$subarch" in
4210         armv5t*)    enable fast_clz                ;;
4211         armv[6-8]*)
4212             enable fast_clz
4213             disabled fast_unaligned || enable fast_unaligned
4214             ;;
4215     esac
4216
4217 elif enabled avr32; then
4218
4219     case $cpu in
4220         ap7[02]0[0-2])
4221             subarch="avr32_ap"
4222             cpuflags="-mpart=$cpu"
4223         ;;
4224         ap)
4225             subarch="avr32_ap"
4226             cpuflags="-march=$cpu"
4227         ;;
4228         uc3[ab]*)
4229             subarch="avr32_uc"
4230             cpuflags="-mcpu=$cpu"
4231         ;;
4232         uc)
4233             subarch="avr32_uc"
4234             cpuflags="-march=$cpu"
4235         ;;
4236     esac
4237
4238 elif enabled bfin; then
4239
4240     cpuflags="-mcpu=$cpu"
4241
4242 elif enabled mips; then
4243
4244     cpuflags="-march=$cpu"
4245
4246     if [ "$cpu" != "generic" ]; then
4247         disable mips32r2
4248         disable mips32r5
4249         disable mips64r2
4250         disable mips32r6
4251         disable mips64r6
4252         disable loongson2
4253         disable loongson3
4254
4255         case $cpu in
4256             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4257                 enable mips32r2
4258                 disable msa
4259             ;;
4260             p5600|i6400)
4261                 disable mipsdsp
4262                 disable mipsdspr2
4263             ;;
4264             loongson*)
4265                 enable loongson2
4266                 enable loongson3
4267                 enable local_aligned_8 local_aligned_16 local_aligned_32
4268                 enable simd_align_16
4269                 enable fast_64bit
4270                 enable fast_clz
4271                 enable fast_cmov
4272                 enable fast_unaligned
4273                 disable aligned_stack
4274                 case $cpu in
4275                     loongson3*)
4276                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4277                     ;;
4278                     loongson2e)
4279                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4280                     ;;
4281                     loongson2f)
4282                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4283                     ;;
4284                 esac
4285             ;;
4286             *)
4287                 # Unknown CPU. Disable everything.
4288                 warn "unknown CPU. Disabling all MIPS optimizations."
4289                 disable mipsfpu
4290                 disable mipsdsp
4291                 disable mipsdspr2
4292                 disable msa
4293                 disable mmi
4294             ;;
4295         esac
4296
4297         case $cpu in
4298             24kc)
4299                 disable mipsfpu
4300                 disable mipsdsp
4301                 disable mipsdspr2
4302             ;;
4303             24kf*)
4304                 disable mipsdsp
4305                 disable mipsdspr2
4306             ;;
4307             24kec|34kc|1004kc)
4308                 disable mipsfpu
4309                 disable mipsdspr2
4310             ;;
4311             24kef*|34kf*|1004kf*)
4312                 disable mipsdspr2
4313             ;;
4314             74kc)
4315                 disable mipsfpu
4316             ;;
4317             p5600)
4318                 enable mips32r5
4319                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4320             ;;
4321             i6400)
4322                 enable mips64r6
4323                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4324             ;;
4325         esac
4326     else
4327         # We do not disable anything. Is up to the user to disable the unwanted features.
4328         warn 'generic cpu selected'
4329     fi
4330
4331 elif enabled ppc; then
4332
4333     disable ldbrx
4334
4335     case $(tolower $cpu) in
4336         601|ppc601|powerpc601)
4337             cpuflags="-mcpu=601"
4338             disable altivec
4339         ;;
4340         603*|ppc603*|powerpc603*)
4341             cpuflags="-mcpu=603"
4342             disable altivec
4343         ;;
4344         604*|ppc604*|powerpc604*)
4345             cpuflags="-mcpu=604"
4346             disable altivec
4347         ;;
4348         g3|75*|ppc75*|powerpc75*)
4349             cpuflags="-mcpu=750"
4350             disable altivec
4351         ;;
4352         g4|745*|ppc745*|powerpc745*)
4353             cpuflags="-mcpu=7450"
4354             disable vsx
4355         ;;
4356         74*|ppc74*|powerpc74*)
4357             cpuflags="-mcpu=7400"
4358             disable vsx
4359         ;;
4360         g5|970|ppc970|powerpc970)
4361             cpuflags="-mcpu=970"
4362             disable vsx
4363         ;;
4364         power[3-6]*)
4365             cpuflags="-mcpu=$cpu"
4366             disable vsx
4367         ;;
4368         power[7-8]*)
4369             cpuflags="-mcpu=$cpu"
4370         ;;
4371         cell)
4372             cpuflags="-mcpu=cell"
4373             enable ldbrx
4374             disable vsx
4375         ;;
4376         e500mc)
4377             cpuflags="-mcpu=e500mc"
4378             disable altivec
4379         ;;
4380         e500v2)
4381             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4382             disable altivec
4383             disable dcbzl
4384         ;;
4385         e500)
4386             cpuflags="-mcpu=8540 -mhard-float"
4387             disable altivec
4388             disable dcbzl
4389         ;;
4390     esac
4391
4392 elif enabled sparc; then
4393
4394     case $cpu in
4395         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4396             cpuflags="-mcpu=$cpu"
4397         ;;
4398         ultrasparc*|niagara[234])
4399             cpuflags="-mcpu=$cpu"
4400         ;;
4401     esac
4402
4403 elif enabled x86; then
4404
4405     case $cpu in
4406         i[345]86|pentium)
4407             cpuflags="-march=$cpu"
4408             disable i686
4409             disable mmx
4410         ;;
4411         # targets that do NOT support nopl and conditional mov (cmov)
4412         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4413             cpuflags="-march=$cpu"
4414             disable i686
4415         ;;
4416         # targets that do support nopl and conditional mov (cmov)
4417         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4418         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4419             cpuflags="-march=$cpu"
4420             enable i686
4421             enable fast_cmov
4422         ;;
4423         # targets that do support conditional mov but on which it's slow
4424         pentium4|pentium4m|prescott|nocona)
4425             cpuflags="-march=$cpu"
4426             enable i686
4427             disable fast_cmov
4428         ;;
4429     esac
4430
4431 fi
4432
4433 if [ "$cpu" != generic ]; then
4434     add_cflags  $cpuflags
4435     add_asflags $cpuflags
4436     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4437 fi
4438
4439 # compiler sanity check
4440 check_exec <<EOF
4441 int main(void){ return 0; }
4442 EOF
4443 if test "$?" != 0; then
4444     echo "$cc is unable to create an executable file."
4445     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4446         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4447         echo "Only do this if you know what cross compiling means."
4448     fi
4449     die "C compiler test failed."
4450 fi
4451
4452 add_cppflags -D_ISOC99_SOURCE
4453 add_cxxflags -D__STDC_CONSTANT_MACROS
4454 check_cflags -std=c99
4455 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4456 #include <stdlib.h>
4457 EOF
4458 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4459 #include <stdlib.h>
4460 EOF
4461
4462 add_host_cppflags -D_ISOC99_SOURCE
4463 check_host_cflags -std=c99
4464 check_host_cflags -Wall
4465 check_host_cflags -O3
4466
4467 check_64bit(){
4468     arch32=$1
4469     arch64=$2
4470     expr=$3
4471     check_code cc "" "int test[2*($expr) - 1]" &&
4472         subarch=$arch64 || subarch=$arch32
4473 }
4474
4475 case "$arch" in
4476     aarch64|alpha|ia64)
4477         spic=$shared
4478     ;;
4479     mips)
4480         check_64bit mips mips64 '_MIPS_SIM > 1'
4481         spic=$shared
4482     ;;
4483     parisc)
4484         check_64bit parisc parisc64 'sizeof(void *) > 4'
4485         spic=$shared
4486     ;;
4487     ppc)
4488         check_64bit ppc ppc64 'sizeof(void *) > 4'
4489         spic=$shared
4490     ;;
4491     s390)
4492         check_64bit s390 s390x 'sizeof(void *) > 4'
4493         spic=$shared
4494     ;;
4495     sparc)
4496         check_64bit sparc sparc64 'sizeof(void *) > 4'
4497         spic=$shared
4498     ;;
4499     x86)
4500         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4501         # Treat x32 as x64 for now. Note it also needs spic=$shared
4502         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4503             subarch=x86_64
4504         if test "$subarch" = "x86_64"; then
4505             spic=$shared
4506         fi
4507     ;;
4508     ppc)
4509         check_cc <<EOF && subarch="ppc64"
4510         int test[(int)sizeof(char*) - 7];
4511 EOF
4512     ;;
4513 esac
4514
4515 enable $subarch
4516 enabled spic && enable_weak pic
4517
4518 # OS specific
4519 case $target_os in
4520     aix)
4521         SHFLAGS=-shared
4522         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4523         enabled shared && add_ldflags -Wl,-brtl
4524         ;;
4525     android)
4526         disable symver
4527         enable section_data_rel_ro
4528         SLIB_INSTALL_NAME='$(SLIBNAME)'
4529         SLIB_INSTALL_LINKS=
4530         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4531         ;;
4532     haiku)
4533         prefix_default="/boot/common"
4534         network_extralibs="-lnetwork"
4535         host_libs=
4536         ;;
4537     sunos)
4538         SHFLAGS='-shared -Wl,-h,$$(@F)'
4539         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4540         network_extralibs="-lsocket -lnsl"
4541         add_cppflags -D__EXTENSIONS__
4542         # When using suncc to build, the Solaris linker will mark
4543         # an executable with each instruction set encountered by
4544         # the Solaris assembler.  As our libraries contain their own
4545         # guards for processor-specific code, instead suppress
4546         # generation of the HWCAPS ELF section on Solaris x86 only.
4547         enabled_all suncc x86 &&
4548             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4549             add_ldflags -Wl,-M,mapfile
4550         nm_default='nm -P -g'
4551         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4552         ;;
4553     netbsd)
4554         disable symver
4555         oss_indev_extralibs="-lossaudio"
4556         oss_outdev_extralibs="-lossaudio"
4557         enabled gcc || check_ldflags -Wl,-zmuldefs
4558         ;;
4559     openbsd|bitrig)
4560         disable symver
4561         SHFLAGS='-shared'
4562         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4563         SLIB_INSTALL_LINKS=
4564         oss_indev_extralibs="-lossaudio"
4565         oss_outdev_extralibs="-lossaudio"
4566         ;;
4567     dragonfly)
4568         disable symver
4569         ;;
4570     freebsd)
4571         ;;
4572     bsd/os)
4573         add_extralibs -lpoll -lgnugetopt
4574         strip="strip -d"
4575         ;;
4576     darwin)
4577         enabled ppc && add_asflags -force_cpusubtype_ALL
4578         install_name_dir_default='$(SHLIBDIR)'
4579         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4580         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4581         strip="${strip} -x"
4582         add_ldflags -Wl,-dynamic,-search_paths_first
4583         SLIBSUF=".dylib"
4584         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4585         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4586         objformat="macho"
4587         enabled x86_64 && objformat="macho64"
4588         enabled_any pic shared x86_64 ||
4589             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4590         check_header dispatch/dispatch.h
4591         ;;
4592     msys*)
4593         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4594         ;;
4595     mingw32*|mingw64*)
4596         if test $target_os = "mingw32ce"; then
4597             disable network
4598         else
4599             target_os=mingw32
4600         fi
4601         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4602         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4603         LIBTARGET=i386
4604         if enabled x86_64; then
4605             LIBTARGET="i386:x86-64"
4606         elif enabled arm; then
4607             LIBTARGET=arm-wince
4608         fi
4609         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4610         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4611         shlibdir_default="$bindir_default"
4612         SLIBPREF=""
4613         SLIBSUF=".dll"
4614         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4615         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4616         dlltool="${cross_prefix}dlltool"
4617         if check_cmd lib.exe -list; then
4618             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4619             if enabled x86_64; then
4620                 LIBTARGET=x64
4621             fi
4622         elif check_cmd $dlltool --version; then
4623             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4624         fi
4625         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4626         SLIB_INSTALL_LINKS=
4627         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4628         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4629         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4630         objformat="win32"
4631         ranlib=:
4632         enable dos_paths
4633         check_ldflags -Wl,--nxcompat,--dynamicbase
4634         # Lets work around some stupidity in binutils.
4635         # ld will strip relocations from executables even though we need them
4636         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4637         # however ld then forgets what the entry point should be (oops) so we
4638         # have to manually (re)set it.
4639         if enabled x86_32; then
4640             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4641         elif enabled x86_64; then
4642             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4643             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4644             # Set image base >4GB for extra entropy with HEASLR
4645             add_ldexeflags -Wl,--image-base,0x140000000
4646             append SHFLAGS -Wl,--image-base,0x180000000
4647         fi
4648         ;;
4649     win32|win64)
4650         disable symver
4651         if enabled shared; then
4652             # Link to the import library instead of the normal static library
4653             # for shared libs.
4654             LD_LIB='%.lib'
4655             # Cannot build both shared and static libs with MSVC or icl.
4656             disable static
4657         fi
4658         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4659         shlibdir_default="$bindir_default"
4660         SLIBPREF=""
4661         SLIBSUF=".dll"
4662         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4663         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4664         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4665         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4666         SLIB_INSTALL_LINKS=
4667         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4668         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4669         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4670         objformat="win32"
4671         ranlib=:
4672         enable dos_paths
4673         ;;
4674     cygwin*)
4675         target_os=cygwin
4676         shlibdir_default="$bindir_default"
4677         SLIBPREF="cyg"
4678         SLIBSUF=".dll"
4679         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4680         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4681         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4682         SLIB_INSTALL_LINKS=
4683         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4684         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4685         objformat="win32"
4686         enable dos_paths
4687         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4688         ;;
4689     *-dos|freedos|opendos)
4690         network_extralibs="-lsocket"
4691         objformat="coff"
4692         enable dos_paths
4693         add_cppflags -U__STRICT_ANSI__
4694         ;;
4695     linux)
4696         enable dv1394
4697         enable section_data_rel_ro
4698         ;;
4699     irix*)
4700         target_os=irix
4701         ranlib="echo ignoring ranlib"
4702         ;;
4703     os/2*)
4704         strip="lxlite -CS"
4705         ln_s="cp -f"
4706         objformat="aout"
4707         add_cppflags -D_GNU_SOURCE
4708         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4709         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4710         LIBSUF="_s.a"
4711         SLIBPREF=""
4712         SLIBSUF=".dll"
4713         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4714         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4715         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4716             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4717             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4718             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4719             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4720         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4721             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4722         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4723         enable dos_paths
4724         enable_weak os2threads
4725         ;;
4726     gnu/kfreebsd)
4727         add_cppflags -D_BSD_SOURCE
4728         ;;
4729     gnu)
4730         ;;
4731     qnx)
4732         add_cppflags -D_QNX_SOURCE
4733         network_extralibs="-lsocket"
4734         ;;
4735     symbian)
4736         SLIBSUF=".dll"
4737         enable dos_paths
4738         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4739         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4740         add_ldflags -Wl,--target1-abs,--no-undefined \
4741                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4742                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4743         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4744                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4745                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4746         ;;
4747     osf1)
4748         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4749         ;;
4750     minix)
4751         ;;
4752     plan9)
4753         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4754                      -D_REENTRANT_SOURCE        \
4755                      -D_RESEARCH_SOURCE         \
4756                      -DFD_SETSIZE=96            \
4757                      -DHAVE_SOCK_OPTS
4758         add_compat strtod.o strtod=avpriv_strtod
4759         network_extralibs='-lbsd'
4760         exeobjs=compat/plan9/main.o
4761         disable ffserver
4762         cp_f='cp'
4763         ;;
4764     none)
4765         ;;
4766     *)
4767         die "Unknown OS '$target_os'."
4768         ;;
4769 esac
4770
4771 # test if creating links works
4772 link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
4773 link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
4774 mkdir "$link_dest"
4775 $ln_s "$link_dest" "$link_name"
4776 touch "$link_dest/test_file"
4777 if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
4778     # create link to source path
4779     [ -e src ] && rm src
4780     $ln_s "$source_path" src
4781     source_link=src
4782 else
4783     # creating directory links doesn't work
4784     # fall back to using the full source path
4785     source_link="$source_path"
4786 fi
4787 # cleanup
4788 rm -r "$link_dest"
4789 rm -r "$link_name"
4790
4791 # determine libc flavour
4792
4793 probe_libc(){
4794     pfx=$1
4795     pfx_no_=${pfx%_}
4796     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4797     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4798         eval ${pfx}libc_type=uclibc
4799         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4800     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4801         eval ${pfx}libc_type=glibc
4802         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4803     # MinGW headers can be installed on Cygwin, so check for newlib first.
4804     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4805         eval ${pfx}libc_type=newlib
4806         add_${pfx}cppflags -U__STRICT_ANSI__
4807     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4808     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4809         eval ${pfx}libc_type=mingw64
4810         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4811             add_compat msvcrt/snprintf.o
4812             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4813         fi
4814         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4815         eval test \$${pfx_no_}cc_type = "gcc" &&