0b0bf781d4ed612dd2d5a5580d4716ad77534d48
[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   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --enable-x11grab         enable X11 grabbing [no]
134   --disable-network        disable network support [no]
135   --disable-dct            disable DCT code
136   --disable-dwt            disable DWT code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --enable-dxva2           enable DXVA2 code
145   --enable-vaapi           enable VAAPI code [autodetect]
146   --enable-vda             enable VDA code   [autodetect]
147   --enable-vdpau           enable VDPAU code [autodetect]
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --enable-bzlib           enable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
192   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
193   --enable-libass          enable libass subtitles rendering [no]
194   --enable-libbluray       enable BluRay reading using libbluray [no]
195   --enable-libcaca         enable textual display using libcaca
196   --enable-libcelt         enable CELT decoding via libcelt [no]
197   --enable-libcdio         enable audio CD grabbing with libcdio
198   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
199                            and libraw1394 [no]
200   --enable-libfaac         enable AAC encoding via libfaac [no]
201   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
202   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
203   --enable-libfreetype     enable libfreetype [no]
204   --enable-libgsm          enable GSM de/encoding via libgsm [no]
205   --enable-libiec61883     enable iec61883 via libiec61883 [no]
206   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
207   --enable-libmodplug      enable ModPlug via libmodplug [no]
208   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
209   --enable-libnut          enable NUT (de)muxing via libnut,
210                            native (de)muxer exists [no]
211   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
212   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
213   --enable-libopencv       enable video filtering via libopencv [no]
214   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
215   --enable-libopus         enable Opus decoding via libopus [no]
216   --enable-libpulse        enable Pulseaudio input via libpulse [no]
217   --enable-librtmp         enable RTMP[E] support via librtmp [no]
218   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
219   --enable-libsoxr         enable Include libsoxr resampling [no]
220   --enable-libspeex        enable Speex de/encoding via libspeex [no]
221   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
222   --enable-libtheora       enable Theora encoding via libtheora [no]
223   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
224   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
225   --enable-libv4l2         enable libv4l2/v4l-utils [no]
226   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
227   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
228   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
229                            native implementation exists [no]
230   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
231   --enable-libx264         enable H.264 encoding via x264 [no]
232   --enable-libxavs         enable AVS encoding via xavs [no]
233   --enable-libxvid         enable Xvid encoding via xvidcore,
234                            native MPEG-4/Xvid encoder exists [no]
235   --enable-openal          enable OpenAL 1.1 capture support [no]
236   --enable-openssl         enable openssl [no]
237   --enable-zlib            enable zlib [autodetect]
238
239 Advanced options (experts only):
240   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
241   --enable-cross-compile   assume a cross-compiler is used
242   --sysroot=PATH           root of cross-build tree
243   --sysinclude=PATH        location of cross-build system headers
244   --target-os=OS           compiler targets OS [$target_os]
245   --target-exec=CMD        command to run executables on target
246   --target-path=DIR        path to view of build directory on target
247   --toolchain=NAME         set tool defaults according to NAME
248   --nm=NM                  use nm tool NM [$nm_default]
249   --ar=AR                  use archive tool AR [$ar_default]
250   --as=AS                  use assembler AS [$as_default]
251   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
252   --cc=CC                  use C compiler CC [$cc_default]
253   --cxx=CXX                use C compiler CXX [$cxx_default]
254   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
255   --ld=LD                  use linker LD [$ld_default]
256   --host-cc=HOSTCC         use host C compiler HOSTCC
257   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
258   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
259   --host-ld=HOSTLD         use host linker HOSTLD
260   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
261   --host-libs=HLIBS        use libs HLIBS when linking for host
262   --host-os=OS             compiler host OS [$target_os]
263   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
264   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
265   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
266   --extra-libs=ELIBS       add ELIBS [$ELIBS]
267   --extra-version=STRING   version string suffix []
268   --optflags=OPTFLAGS      override optimization-related compiler flags
269   --build-suffix=SUFFIX    library name suffix []
270   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
271   --progs-suffix=SUFFIX    program name suffix []
272   --arch=ARCH              select architecture [$arch]
273   --cpu=CPU                select the minimum required CPU (affects
274                            instruction selection, may crash on older CPUs)
275   --enable-pic             build position-independent code
276   --enable-sram            allow use of on-chip SRAM
277   --enable-thumb           compile for Thumb instruction set
278   --disable-symver         disable symbol versioning
279   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
280   --disable-safe-bitstream-reader
281                            disable buffer boundary checking in bitreaders
282                            (faster, but may crash)
283   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
284   --enable-lto             use link-time optimization
285
286 Optimization options (experts only):
287   --disable-asm            disable all assembler optimizations
288   --disable-altivec        disable AltiVec optimizations
289   --disable-amd3dnow       disable 3DNow! optimizations
290   --disable-amd3dnowext    disable 3DNow! extended optimizations
291   --disable-mmx            disable MMX optimizations
292   --disable-mmxext         disable MMXEXT optimizations
293   --disable-sse            disable SSE optimizations
294   --disable-sse2           disable SSE2 optimizations
295   --disable-sse3           disable SSE3 optimizations
296   --disable-ssse3          disable SSSE3 optimizations
297   --disable-sse4           disable SSE4 optimizations
298   --disable-sse42          disable SSE4.2 optimizations
299   --disable-avx            disable AVX optimizations
300   --disable-fma4           disable FMA4 optimizations
301   --disable-armv5te        disable armv5te optimizations
302   --disable-armv6          disable armv6 optimizations
303   --disable-armv6t2        disable armv6t2 optimizations
304   --disable-vfp            disable VFP optimizations
305   --disable-neon           disable NEON optimizations
306   --disable-vis            disable VIS optimizations
307   --disable-inline-asm     disable use of inline assembler
308   --disable-yasm           disable use of yasm assembler
309   --disable-mips32r2       disable MIPS32R2 optimizations
310   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
311   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
312   --disable-mipsfpu        disable floating point MIPS optimizations
313   --disable-fast-unaligned consider unaligned accesses slow
314
315 Developer options (useful when working on FFmpeg itself):
316   --enable-coverage        build with test coverage instrumentation
317   --disable-debug          disable debugging symbols
318   --enable-debug=LEVEL     set the debug level [$debuglevel]
319   --disable-optimizations  disable compiler optimizations
320   --enable-extra-warnings  enable more compiler warnings
321   --disable-stripping      disable stripping of executables and shared libraries
322   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
323                            2 causes a slowdown at runtime.
324   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
325   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
326                            leaks and errors, using the specified valgrind binary.
327                            Cannot be combined with --target-exec
328   --enable-ftrapv          Trap arithmetic overflows
329   --samples=PATH           location of test samples for FATE, if not set use
330                            \$FATE_SAMPLES at make invocation time.
331   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
332                            should be used only for debugging purposes)
333   --enable-random          randomly enable/disable components
334   --disable-random
335   --enable-random=LIST     randomly enable/disable specific components or
336   --disable-random=LIST    component groups. LIST is a comma-separated list
337                            of NAME[:PROB] entries where NAME is a component
338                            (group) and PROB the probability associated with
339                            NAME (default 0.5).
340   --random-seed=VALUE      seed value for --enable/disable-random
341
342 NOTE: Object files are built at the place where configure is launched.
343 EOF
344   exit 0
345 }
346
347 quotes='""'
348
349 log(){
350     echo "$@" >> $logfile
351 }
352
353 log_file(){
354     log BEGIN $1
355     pr -n -t $1 >> $logfile
356     log END $1
357 }
358
359 echolog(){
360     log "$@"
361     echo "$@"
362 }
363
364 warn(){
365     log "WARNING: $*"
366     WARNINGS="${WARNINGS}WARNING: $*\n"
367 }
368
369 die(){
370     echolog "$@"
371     cat <<EOF
372
373 If you think configure made a mistake, make sure you are using the latest
374 version from Git.  If the latest version fails, report the problem to the
375 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
376 EOF
377     if disabled logging; then
378         cat <<EOF
379 Rerun configure with logging enabled (do not use --disable-logging), and
380 include the log this produces with your report.
381 EOF
382     else
383         cat <<EOF
384 Include the log file "$logfile" produced by configure as this will help
385 solving the problem.
386 EOF
387     fi
388     exit 1
389 }
390
391 # Avoid locale weirdness, besides we really just want to translate ASCII.
392 toupper(){
393     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
394 }
395
396 tolower(){
397     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
398 }
399
400 c_escape(){
401     echo "$*" | sed 's/["\\]/\\\0/g'
402 }
403
404 sh_quote(){
405     v=$(echo "$1" | sed "s/'/'\\\\''/g")
406     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
407     echo "$v"
408 }
409
410 cleanws(){
411     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
412 }
413
414 filter(){
415     pat=$1
416     shift
417     for v; do
418         eval "case $v in $pat) echo $v ;; esac"
419     done
420 }
421
422 filter_out(){
423     pat=$1
424     shift
425     for v; do
426         eval "case $v in $pat) ;; *) echo $v ;; esac"
427     done
428 }
429
430 map(){
431     m=$1
432     shift
433     for v; do eval $m; done
434 }
435
436 add_suffix(){
437     suffix=$1
438     shift
439     for v; do echo ${v}${suffix}; done
440 }
441
442 set_all(){
443     value=$1
444     shift
445     for var in $*; do
446         eval $var=$value
447     done
448 }
449
450 set_weak(){
451     value=$1
452     shift
453     for var; do
454         eval : \${$var:=$value}
455     done
456 }
457
458 set_safe(){
459     var=$1
460     shift
461     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
462 }
463
464 get_safe(){
465     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
466 }
467
468 pushvar(){
469     for var in $*; do
470         eval level=\${${var}_level:=0}
471         eval ${var}_${level}="\$$var"
472         eval ${var}_level=$(($level+1))
473     done
474 }
475
476 popvar(){
477     for var in $*; do
478         eval level=\${${var}_level:-0}
479         test $level = 0 && continue
480         eval level=$(($level-1))
481         eval $var="\${${var}_${level}}"
482         eval ${var}_level=$level
483         eval unset ${var}_${level}
484     done
485 }
486
487 enable(){
488     set_all yes $*
489 }
490
491 disable(){
492     set_all no $*
493 }
494
495 enable_weak(){
496     set_weak yes $*
497 }
498
499 disable_weak(){
500     set_weak no $*
501 }
502
503 enable_safe(){
504     for var; do
505         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
506     done
507 }
508
509 disable_safe(){
510     for var; do
511         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
512     done
513 }
514
515 do_enable_deep(){
516     for var; do
517         enabled $var && continue
518         eval sel="\$${var}_select"
519         eval sgs="\$${var}_suggest"
520         pushvar var sgs
521         enable_deep $sel
522         popvar sgs
523         enable_deep_weak $sgs
524         popvar var
525     done
526 }
527
528 enable_deep(){
529     do_enable_deep $*
530     enable $*
531 }
532
533 enable_deep_weak(){
534     do_enable_deep $*
535     enable_weak $*
536 }
537
538 enabled(){
539     test "${1#!}" = "$1" && op== || op=!=
540     eval test "x\$${1#!}" $op "xyes"
541 }
542
543 disabled(){
544     test "${1#!}" = "$1" && op== || op=!=
545     eval test "x\$${1#!}" $op "xno"
546 }
547
548 enabled_all(){
549     for opt; do
550         enabled $opt || return 1
551     done
552 }
553
554 disabled_all(){
555     for opt; do
556         disabled $opt || return 1
557     done
558 }
559
560 enabled_any(){
561     for opt; do
562         enabled $opt && return 0
563     done
564 }
565
566 disabled_any(){
567     for opt; do
568         disabled $opt && return 0
569     done
570     return 1
571 }
572
573 set_default(){
574     for opt; do
575         eval : \${$opt:=\$${opt}_default}
576     done
577 }
578
579 is_in(){
580     value=$1
581     shift
582     for var in $*; do
583         [ $var = $value ] && return 0
584     done
585     return 1
586 }
587
588 do_check_deps(){
589     for cfg; do
590         cfg="${cfg#!}"
591         enabled ${cfg}_checking && die "Circular dependency for $cfg."
592         disabled ${cfg}_checking && continue
593         enable ${cfg}_checking
594         append allopts $cfg
595
596         eval dep_all="\$${cfg}_deps"
597         eval dep_any="\$${cfg}_deps_any"
598         eval dep_sel="\$${cfg}_select"
599         eval dep_sgs="\$${cfg}_suggest"
600         eval dep_ifa="\$${cfg}_if"
601         eval dep_ifn="\$${cfg}_if_any"
602
603         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
604         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
605         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
606
607         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
608         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
609         enabled_all  $dep_all || disable $cfg
610         enabled_any  $dep_any || disable $cfg
611         disabled_any $dep_sel && disable $cfg
612
613         if enabled $cfg; then
614             enable_deep $dep_sel
615             enable_deep_weak $dep_sgs
616         fi
617
618         disable ${cfg}_checking
619     done
620 }
621
622 check_deps(){
623     unset allopts
624
625     do_check_deps "$@"
626
627     for cfg in $allopts; do
628         enabled $cfg || continue
629         eval dep_extralibs="\$${cfg}_extralibs"
630         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
631     done
632 }
633
634 print_config(){
635     pfx=$1
636     files=$2
637     shift 2
638     map 'eval echo "$v \${$v:-no}"' "$@" |
639     awk "BEGIN { split(\"$files\", files) }
640         {
641             c = \"$pfx\" toupper(\$1);
642             v = \$2;
643             sub(/yes/, 1, v);
644             sub(/no/,  0, v);
645             for (f in files) {
646                 file = files[f];
647                 if (file ~ /\\.h\$/) {
648                     printf(\"#define %s %d\\n\", c, v) >>file;
649                 } else if (file ~ /\\.asm\$/) {
650                     printf(\"%%define %s %d\\n\", c, v) >>file;
651                 } else if (file ~ /\\.mak\$/) {
652                     n = -v ? \"\" : \"!\";
653                     printf(\"%s%s=yes\\n\", n, c) >>file;
654                 }
655             }
656         }"
657 }
658
659 print_enabled(){
660     suf=$1
661     shift
662     for v; do
663         enabled $v && printf "%s\n" ${v%$suf};
664     done
665 }
666
667 append(){
668     var=$1
669     shift
670     eval "$var=\"\$$var $*\""
671 }
672
673 prepend(){
674     var=$1
675     shift
676     eval "$var=\"$* \$$var\""
677 }
678
679 add_cppflags(){
680     append CPPFLAGS "$@"
681 }
682
683 add_cflags(){
684     append CFLAGS $($cflags_filter "$@")
685 }
686
687 add_cxxflags(){
688     append CXXFLAGS $($cflags_filter "$@")
689 }
690
691 add_asflags(){
692     append ASFLAGS $($asflags_filter "$@")
693 }
694
695 add_ldflags(){
696     append LDFLAGS $($ldflags_filter "$@")
697 }
698
699 add_extralibs(){
700     prepend extralibs $($ldflags_filter "$@")
701 }
702
703 add_host_cppflags(){
704     append host_cppflags "$@"
705 }
706
707 add_host_cflags(){
708     append host_cflags $($host_cflags_filter "$@")
709 }
710
711 add_host_ldflags(){
712     append host_ldflags $($host_ldflags_filter "$@")
713 }
714
715 add_compat(){
716     append compat_objs $1
717     shift
718     map 'add_cppflags -D$v' "$@"
719 }
720
721 check_cmd(){
722     log "$@"
723     "$@" >> $logfile 2>&1
724 }
725
726 cc_o(){
727     eval printf '%s\\n' $CC_O
728 }
729
730 cc_e(){
731     eval printf '%s\\n' $CC_E
732 }
733
734 check_cc(){
735     log check_cc "$@"
736     cat > $TMPC
737     log_file $TMPC
738     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
739 }
740
741 check_cxx(){
742     log check_cxx "$@"
743     cat > $TMPCPP
744     log_file $TMPCPP
745     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
746 }
747
748 check_cpp(){
749     log check_cpp "$@"
750     cat > $TMPC
751     log_file $TMPC
752     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
753 }
754
755 as_o(){
756     eval printf '%s\\n' $AS_O
757 }
758
759 check_as(){
760     log check_as "$@"
761     cat > $TMPS
762     log_file $TMPS
763     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
764 }
765
766 check_inline_asm(){
767     log check_inline_asm "$@"
768     name="$1"
769     code="$2"
770     shift 2
771     disable $name
772     check_cc "$@" <<EOF && enable $name
773 void foo(void){ __asm__ volatile($code); }
774 EOF
775 }
776
777 check_insn(){
778     log check_insn "$@"
779     check_inline_asm ${1}_inline "\"$2\""
780     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
781 }
782
783 check_yasm(){
784     log check_yasm "$@"
785     echo "$1" > $TMPS
786     log_file $TMPS
787     shift 1
788     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
789 }
790
791 ld_o(){
792     eval printf '%s\\n' $LD_O
793 }
794
795 check_ld(){
796     log check_ld "$@"
797     type=$1
798     shift 1
799     flags=$(filter_out '-l*|*.so' $@)
800     libs=$(filter '-l*|*.so' $@)
801     check_$type $($cflags_filter $flags) || return
802     flags=$($ldflags_filter $flags)
803     libs=$($ldflags_filter $libs)
804     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
805 }
806
807 check_code(){
808     log check_code "$@"
809     check=$1
810     headers=$2
811     code=$3
812     shift 3
813     {
814         for hdr in $headers; do
815             echo "#include <$hdr>"
816         done
817         echo "int main(void) { $code; return 0; }"
818     } | check_$check "$@"
819 }
820
821 check_cppflags(){
822     log check_cppflags "$@"
823     check_cc "$@" <<EOF && append CPPFLAGS "$@"
824 int x;
825 EOF
826 }
827
828 check_cflags(){
829     log check_cflags "$@"
830     set -- $($cflags_filter "$@")
831     check_cc "$@" <<EOF && append CFLAGS "$@"
832 int x;
833 EOF
834 }
835
836 check_cxxflags(){
837     log check_cxxflags "$@"
838     set -- $($cflags_filter "$@")
839     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
840 int x;
841 EOF
842 }
843
844 test_ldflags(){
845     log test_ldflags "$@"
846     check_ld "cc" "$@" <<EOF
847 int main(void){ return 0; }
848 EOF
849 }
850
851 check_ldflags(){
852     log check_ldflags "$@"
853     test_ldflags "$@" && add_ldflags "$@"
854 }
855
856 check_header(){
857     log check_header "$@"
858     header=$1
859     shift
860     disable_safe $header
861     check_cpp "$@" <<EOF && enable_safe $header
862 #include <$header>
863 int x;
864 EOF
865 }
866
867 check_func(){
868     log check_func "$@"
869     func=$1
870     shift
871     disable $func
872     check_ld "cc" "$@" <<EOF && enable $func
873 extern int $func();
874 int main(void){ $func(); }
875 EOF
876 }
877
878 check_mathfunc(){
879     log check_mathfunc "$@"
880     func=$1
881     narg=$2
882     shift 2
883     test $narg = 2 && args="f, g" || args="f"
884     disable $func
885     check_ld "cc" "$@" <<EOF && enable $func
886 #include <math.h>
887 float foo(float f, float g) { return $func($args); }
888 int main(void){ return (int) foo; }
889 EOF
890 }
891
892 check_func_headers(){
893     log check_func_headers "$@"
894     headers=$1
895     funcs=$2
896     shift 2
897     {
898         for hdr in $headers; do
899             echo "#include <$hdr>"
900         done
901         for func in $funcs; do
902             echo "long check_$func(void) { return (long) $func; }"
903         done
904         echo "int main(void) { return 0; }"
905     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
906 }
907
908 check_class_headers_cpp(){
909     log check_class_headers_cpp "$@"
910     headers=$1
911     classes=$2
912     shift 2
913     {
914         for hdr in $headers; do
915             echo "#include <$hdr>"
916         done
917         echo "int main(void) { "
918         i=1
919         for class in $classes; do
920             echo "$class obj$i;"
921             i=$(expr $i + 1)
922         done
923         echo "return 0; }"
924     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
925 }
926
927 check_cpp_condition(){
928     log check_cpp_condition "$@"
929     header=$1
930     condition=$2
931     shift 2
932     check_cpp "$@" <<EOF
933 #include <$header>
934 #if !($condition)
935 #error "unsatisfied condition: $condition"
936 #endif
937 EOF
938 }
939
940 check_lib(){
941     log check_lib "$@"
942     header="$1"
943     func="$2"
944     shift 2
945     check_header $header && check_func $func "$@" && add_extralibs "$@"
946 }
947
948 check_lib2(){
949     log check_lib2 "$@"
950     headers="$1"
951     funcs="$2"
952     shift 2
953     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
954 }
955
956 check_lib_cpp(){
957     log check_lib_cpp "$@"
958     headers="$1"
959     classes="$2"
960     shift 2
961     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
962 }
963
964 check_pkg_config(){
965     log check_pkg_config "$@"
966     pkg="$1"
967     headers="$2"
968     funcs="$3"
969     shift 3
970     $pkg_config --exists $pkg 2>/dev/null || return
971     pkg_cflags=$($pkg_config --cflags $pkg)
972     pkg_libs=$($pkg_config --libs $pkg)
973     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
974         set_safe ${pkg}_cflags $pkg_cflags   &&
975         set_safe ${pkg}_libs   $pkg_libs
976 }
977
978 check_exec(){
979     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
980 }
981
982 check_exec_crash(){
983     code=$(cat)
984
985     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
986     # are safe but may not be available everywhere.  Thus we use
987     # raise(SIGTERM) instead.  The check is run in a subshell so we
988     # can redirect the "Terminated" message from the shell.  SIGBUS
989     # is not defined by standard C so it is used conditionally.
990
991     (check_exec "$@") >> $logfile 2>&1 <<EOF
992 #include <signal.h>
993 static void sighandler(int sig){
994     raise(SIGTERM);
995 }
996 int func(void){
997     $code
998 }
999 int (*func_ptr)(void) = func;
1000 int main(void){
1001     signal(SIGILL, sighandler);
1002     signal(SIGFPE, sighandler);
1003     signal(SIGSEGV, sighandler);
1004 #ifdef SIGBUS
1005     signal(SIGBUS, sighandler);
1006 #endif
1007     return func_ptr();
1008 }
1009 EOF
1010 }
1011
1012 check_type(){
1013     log check_type "$@"
1014     headers=$1
1015     type=$2
1016     shift 2
1017     disable_safe "$type"
1018     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1019 }
1020
1021 check_struct(){
1022     log check_type "$@"
1023     headers=$1
1024     struct=$2
1025     member=$3
1026     shift 3
1027     disable_safe "${struct}_${member}"
1028     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1029         enable_safe "${struct}_${member}"
1030 }
1031
1032 require(){
1033     name="$1"
1034     header="$2"
1035     func="$3"
1036     shift 3
1037     check_lib $header $func "$@" || die "ERROR: $name not found"
1038 }
1039
1040 require2(){
1041     name="$1"
1042     headers="$2"
1043     func="$3"
1044     shift 3
1045     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1046 }
1047
1048 require_cpp(){
1049     name="$1"
1050     headers="$2"
1051     classes="$3"
1052     shift 3
1053     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1054 }
1055
1056 require_pkg_config(){
1057     pkg="$1"
1058     check_pkg_config "$@" || die "ERROR: $pkg not found"
1059     add_cflags    $(get_safe ${pkg}_cflags)
1060     add_extralibs $(get_safe ${pkg}_libs)
1061 }
1062
1063 hostcc_o(){
1064     eval printf '%s\\n' $HOSTCC_O
1065 }
1066
1067 check_host_cc(){
1068     log check_host_cc "$@"
1069     cat > $TMPC
1070     log_file $TMPC
1071     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1072 }
1073
1074 check_host_cppflags(){
1075     log check_host_cppflags "$@"
1076     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1077 int x;
1078 EOF
1079 }
1080
1081 check_host_cflags(){
1082     log check_host_cflags "$@"
1083     set -- $($host_cflags_filter "$@")
1084     check_host_cc "$@" <<EOF && append host_cflags "$@"
1085 int x;
1086 EOF
1087 }
1088
1089 apply(){
1090     file=$1
1091     shift
1092     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1093 }
1094
1095 cp_if_changed(){
1096     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1097     mkdir -p "$(dirname $2)"
1098     $cp_f "$1" "$2"
1099 }
1100
1101 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1102 # system-dependent things.
1103
1104 COMPONENT_LIST="
1105     bsfs
1106     decoders
1107     demuxers
1108     encoders
1109     filters
1110     hwaccels
1111     indevs
1112     muxers
1113     outdevs
1114     parsers
1115     protocols
1116 "
1117
1118 DOCUMENT_LIST="
1119     doc
1120     htmlpages
1121     manpages
1122     podpages
1123     txtpages
1124 "
1125
1126 HWACCEL_LIST="
1127     dxva2
1128     vaapi
1129     vda
1130     vdpau
1131 "
1132
1133 LIBRARY_LIST="
1134     avcodec
1135     avdevice
1136     avfilter
1137     avformat
1138     avresample
1139     avutil
1140     postproc
1141     swresample
1142     swscale
1143 "
1144
1145 PROGRAM_LIST="
1146     ffplay
1147     ffprobe
1148     ffserver
1149     ffmpeg
1150 "
1151
1152 CONFIG_LIST="
1153     $COMPONENT_LIST
1154     $DOCUMENT_LIST
1155     $HWACCEL_LIST
1156     $LIBRARY_LIST
1157     $PROGRAM_LIST
1158     avisynth
1159     bzlib
1160     crystalhd
1161     dct
1162     dwt
1163     fast_unaligned
1164     fft
1165     fontconfig
1166     frei0r
1167     ftrapv
1168     gnutls
1169     gpl
1170     gray
1171     hardcoded_tables
1172     incompatible_fork_abi
1173     libaacplus
1174     libass
1175     libbluray
1176     libcaca
1177     libcdio
1178     libcelt
1179     libdc1394
1180     libfaac
1181     libfdk_aac
1182     libflite
1183     libfreetype
1184     libgsm
1185     libiec61883
1186     libilbc
1187     libmodplug
1188     libmp3lame
1189     libnut
1190     libopencore_amrnb
1191     libopencore_amrwb
1192     libopencv
1193     libopenjpeg
1194     libopus
1195     libpulse
1196     librtmp
1197     libschroedinger
1198     libsoxr
1199     libspeex
1200     libstagefright_h264
1201     libtheora
1202     libtwolame
1203     libutvideo
1204     libv4l2
1205     libvo_aacenc
1206     libvo_amrwbenc
1207     libvorbis
1208     libvpx
1209     libx264
1210     libxavs
1211     libxvid
1212     lsp
1213     lzo
1214     mdct
1215     memalign_hack
1216     memory_poisoning
1217     network
1218     nonfree
1219     openal
1220     openssl
1221     pic
1222     rdft
1223     runtime_cpudetect
1224     safe_bitstream_reader
1225     shared
1226     small
1227     sram
1228     static
1229     swscale_alpha
1230     thumb
1231     version3
1232     xmm_clobber_test
1233     x11grab
1234     zlib
1235 "
1236
1237 THREADS_LIST='
1238     pthreads
1239     w32threads
1240     os2threads
1241 '
1242
1243 ARCH_LIST='
1244     aarch64
1245     alpha
1246     arm
1247     avr32
1248     avr32_ap
1249     avr32_uc
1250     bfin
1251     ia64
1252     m68k
1253     mips
1254     mips64
1255     parisc
1256     ppc
1257     ppc64
1258     s390
1259     sh4
1260     sparc
1261     sparc64
1262     tilegx
1263     tilepro
1264     tomi
1265     x86
1266     x86_32
1267     x86_64
1268 '
1269
1270 ARCH_EXT_LIST_ARM='
1271     armv5te
1272     armv6
1273     armv6t2
1274     neon
1275     vfp
1276     vfpv3
1277 '
1278
1279 ARCH_EXT_LIST_X86='
1280     amd3dnow
1281     amd3dnowext
1282     avx
1283     fma4
1284     mmx
1285     mmxext
1286     sse
1287     sse2
1288     sse3
1289     sse4
1290     sse42
1291     ssse3
1292 '
1293
1294 ARCH_EXT_LIST="
1295     $ARCH_EXT_LIST_ARM
1296     $ARCH_EXT_LIST_X86
1297     altivec
1298     ppc4xx
1299     vis
1300     mipsfpu
1301     mips32r2
1302     mipsdspr1
1303     mipsdspr2
1304 "
1305
1306 HAVE_LIST_CMDLINE='
1307     inline_asm
1308     symver
1309     yasm
1310 '
1311
1312 HAVE_LIST_PUB='
1313     bigendian
1314     fast_unaligned
1315     incompatible_fork_abi
1316 '
1317
1318 MATH_FUNCS="
1319     atanf
1320     atan2f
1321     cbrt
1322     cbrtf
1323     cosf
1324     exp2
1325     exp2f
1326     expf
1327     isinf
1328     isnan
1329     ldexpf
1330     llrint
1331     llrintf
1332     log2
1333     log2f
1334     log10f
1335     lrint
1336     lrintf
1337     powf
1338     rint
1339     round
1340     roundf
1341     sinf
1342     trunc
1343     truncf
1344 "
1345
1346 HAVE_LIST="
1347     $ARCH_EXT_LIST
1348     $(add_suffix _external $ARCH_EXT_LIST)
1349     $(add_suffix _inline   $ARCH_EXT_LIST)
1350     $HAVE_LIST_CMDLINE
1351     $HAVE_LIST_PUB
1352     $THREADS_LIST
1353     $MATH_FUNCS
1354     access
1355     aligned_malloc
1356     aligned_stack
1357     alsa_asoundlib_h
1358     altivec_h
1359     arpa_inet_h
1360     asm_mod_q
1361     asm_mod_y
1362     asm_types_h
1363     attribute_may_alias
1364     attribute_packed
1365     cdio_paranoia_h
1366     cdio_paranoia_paranoia_h
1367     clock_gettime
1368     closesocket
1369     cmov
1370     CommandLineToArgvW
1371     cpunop
1372     CryptGenRandom
1373     dcbzl
1374     dev_bktr_ioctl_bt848_h
1375     dev_bktr_ioctl_meteor_h
1376     dev_ic_bt8xx_h
1377     dev_video_bktr_ioctl_bt848_h
1378     dev_video_meteor_ioctl_meteor_h
1379     direct_h
1380     dlfcn_h
1381     dlopen
1382     dos_paths
1383     dxva_h
1384     ebp_available
1385     ebx_available
1386     fast_64bit
1387     fast_clz
1388     fast_cmov
1389     fcntl
1390     fork
1391     getaddrinfo
1392     gethrtime
1393     getopt
1394     GetProcessAffinityMask
1395     GetProcessMemoryInfo
1396     GetProcessTimes
1397     GetSystemTimeAsFileTime
1398     getrusage
1399     getservbyport
1400     gettimeofday
1401     glob
1402     gnu_as
1403     gsm_h
1404     ibm_asm
1405     iconv
1406     inet_aton
1407     io_h
1408     isatty
1409     jack_port_get_latency_range
1410     kbhit
1411     ldbrx
1412     libdc1394_1
1413     libdc1394_2
1414     local_aligned_16
1415     local_aligned_8
1416     localtime_r
1417     loongson
1418     lzo1x_999_compress
1419     machine_ioctl_bt848_h
1420     machine_ioctl_meteor_h
1421     makeinfo
1422     malloc_h
1423     MapViewOfFile
1424     memalign
1425     mkstemp
1426     mm_empty
1427     mmap
1428     mprotect
1429     msvcrt
1430     nanosleep
1431     openjpeg_1_5_openjpeg_h
1432     PeekNamedPipe
1433     perl
1434     pod2man
1435     poll_h
1436     posix_memalign
1437     pthread_cancel
1438     rdtsc
1439     rsync_contimeout
1440     sched_getaffinity
1441     sdl
1442     sdl_video_size
1443     SetConsoleTextAttribute
1444     setmode
1445     setrlimit
1446     Sleep
1447     sndio_h
1448     socklen_t
1449     soundcard_h
1450     strerror_r
1451     struct_addrinfo
1452     struct_group_source_req
1453     struct_ip_mreq_source
1454     struct_ipv6_mreq
1455     struct_pollfd
1456     struct_rusage_ru_maxrss
1457     struct_sctp_event_subscribe
1458     struct_sockaddr_in6
1459     struct_sockaddr_sa_len
1460     struct_sockaddr_storage
1461     struct_v4l2_frmivalenum_discrete
1462     symver_asm_label
1463     symver_gnu_asm
1464     sysconf
1465     sysctl
1466     sys_mman_h
1467     sys_param_h
1468     sys_resource_h
1469     sys_select_h
1470     sys_soundcard_h
1471     sys_time_h
1472     sys_videoio_h
1473     termios_h
1474     texi2html
1475     threads
1476     unistd_h
1477     usleep
1478     vfp_args
1479     VirtualAlloc
1480     windows_h
1481     winsock2_h
1482     xform_asm
1483     xmm_clobbers
1484 "
1485
1486 # options emitted with CONFIG_ prefix but not available on the command line
1487 CONFIG_EXTRA="
1488     aandcttables
1489     ac3dsp
1490     audio_frame_queue
1491     error_resilience
1492     gcrypt
1493     golomb
1494     gplv3
1495     h264chroma
1496     h264dsp
1497     h264pred
1498     h264qpel
1499     huffman
1500     lgplv3
1501     lpc
1502     mpegaudio
1503     mpegaudiodsp
1504     mpegvideo
1505     mpegvideoenc
1506     nettle
1507     rangecoder
1508     rtpdec
1509     rtpenc_chain
1510     sinewin
1511     videodsp
1512     vp3dsp
1513 "
1514
1515 CMDLINE_SELECT="
1516     $ARCH_EXT_LIST
1517     $CONFIG_LIST
1518     $HAVE_LIST_CMDLINE
1519     $THREADS_LIST
1520     asm
1521     coverage
1522     cross_compile
1523     debug
1524     extra_warnings
1525     logging
1526     lto
1527     optimizations
1528     stripping
1529 "
1530
1531 PATHS_LIST='
1532     bindir
1533     datadir
1534     incdir
1535     libdir
1536     mandir
1537     prefix
1538     shlibdir
1539 '
1540
1541 CMDLINE_SET="
1542     $PATHS_LIST
1543     ar
1544     arch
1545     as
1546     assert_level
1547     build_suffix
1548     cc
1549     cpu
1550     cross_prefix
1551     cxx
1552     dep_cc
1553     extra_version
1554     host_cc
1555     host_cflags
1556     host_ld
1557     host_ldflags
1558     host_libs
1559     host_os
1560     install
1561     ld
1562     logfile
1563     malloc_prefix
1564     nm
1565     optflags
1566     pkg_config
1567     progs_suffix
1568     random_seed
1569     samples
1570     strip
1571     sysinclude
1572     sysroot
1573     target_exec
1574     target_os
1575     target_path
1576     toolchain
1577     valgrind
1578     yasmexe
1579 "
1580
1581 CMDLINE_APPEND="
1582     extra_cflags
1583     extra_cxxflags
1584     host_cppflags
1585 "
1586
1587 # code dependency declarations
1588
1589 # architecture extensions
1590
1591 armv5te_deps="arm"
1592 armv6_deps="arm"
1593 armv6t2_deps="arm"
1594 neon_deps="arm"
1595 vfp_deps="arm"
1596 vfpv3_deps="vfp"
1597
1598 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1599
1600 mipsfpu_deps="mips"
1601 mips32r2_deps="mips"
1602 mipsdspr1_deps="mips"
1603 mipsdspr2_deps="mips"
1604
1605 altivec_deps="ppc"
1606 ppc4xx_deps="ppc"
1607
1608 vis_deps="sparc"
1609
1610 x86_64_suggest="cmov fast_cmov"
1611
1612 amd3dnow_deps="mmx"
1613 amd3dnowext_deps="amd3dnow"
1614 mmx_deps="x86"
1615 mmxext_deps="mmx"
1616 sse_deps="mmxext"
1617 sse2_deps="sse"
1618 sse3_deps="sse2"
1619 ssse3_deps="sse3"
1620 sse4_deps="ssse3"
1621 sse42_deps="sse4"
1622 avx_deps="sse42"
1623 fma4_deps="avx"
1624
1625 mmx_external_deps="yasm"
1626 mmx_inline_deps="inline_asm"
1627 mmx_suggest="mmx_external mmx_inline"
1628
1629 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1630     eval dep=\$${ext}_deps
1631     eval ${ext}_external_deps='"${dep}_external"'
1632     eval ${ext}_inline_deps='"${dep}_inline"'
1633     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1634 done
1635
1636 aligned_stack_if_any="ppc x86"
1637 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1638 fast_clz_if_any="alpha avr32 mips ppc x86"
1639 fast_unaligned_if_any="ppc x86"
1640
1641 inline_asm_deps="!tms470"
1642 need_memalign="altivec neon sse"
1643
1644 symver_if_any="symver_asm_label symver_gnu_asm"
1645
1646 log2_deps="!msvcrt"
1647
1648 # subsystems
1649 dct_select="rdft"
1650 mdct_select="fft"
1651 rdft_select="fft"
1652 mpegaudio_select="mpegaudiodsp"
1653 mpegaudiodsp_select="dct"
1654 mpegvideo_select="videodsp"
1655 mpegvideoenc_select="mpegvideo"
1656
1657 # decoders / encoders
1658 aac_decoder_select="mdct sinewin"
1659 aac_encoder_select="audio_frame_queue mdct sinewin"
1660 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1661 ac3_decoder_select="mdct ac3dsp ac3_parser"
1662 ac3_encoder_select="mdct ac3dsp"
1663 ac3_fixed_encoder_select="mdct ac3dsp"
1664 alac_encoder_select="lpc"
1665 amrnb_decoder_select="lsp"
1666 amrwb_decoder_select="lsp"
1667 amv_encoder_select="aandcttables"
1668 atrac1_decoder_select="mdct sinewin"
1669 atrac3_decoder_select="mdct"
1670 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1671 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1672 cavs_decoder_select="golomb mpegvideo"
1673 comfortnoise_encoder_select="lpc"
1674 cook_decoder_select="mdct sinewin"
1675 cscd_decoder_select="lzo"
1676 cscd_decoder_suggest="zlib"
1677 dca_decoder_select="mdct"
1678 dirac_decoder_select="dwt golomb videodsp"
1679 dnxhd_encoder_select="aandcttables mpegvideoenc"
1680 dxa_decoder_select="zlib"
1681 eac3_decoder_select="ac3_decoder"
1682 eac3_encoder_select="ac3_encoder"
1683 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1684 eatgq_decoder_select="aandcttables"
1685 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1686 exr_decoder_select="zlib"
1687 ffv1_decoder_select="golomb rangecoder"
1688 ffv1_encoder_select="rangecoder"
1689 ffvhuff_encoder_select="huffman"
1690 flac_decoder_select="golomb"
1691 flac_encoder_select="golomb lpc"
1692 flashsv_decoder_select="zlib"
1693 flashsv_encoder_select="zlib"
1694 flashsv2_encoder_select="zlib"
1695 flashsv2_decoder_select="zlib"
1696 flv_decoder_select="h263_decoder"
1697 flv_encoder_select="h263_encoder"
1698 fraps_decoder_select="huffman"
1699 h261_decoder_select="error_resilience mpegvideo"
1700 h261_encoder_select="aandcttables mpegvideoenc"
1701 h263_decoder_select="error_resilience h263_parser mpegvideo"
1702 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1703 h263i_decoder_select="h263_decoder"
1704 h263p_encoder_select="h263_encoder"
1705 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1706 huffyuv_encoder_select="huffman"
1707 iac_decoder_select="fft mdct sinewin"
1708 imc_decoder_select="fft mdct sinewin"
1709 jpegls_decoder_select="golomb"
1710 jpegls_encoder_select="golomb"
1711 ljpeg_encoder_select="aandcttables mpegvideoenc"
1712 loco_decoder_select="golomb"
1713 mdec_decoder_select="error_resilience mpegvideo"
1714 mjpeg_encoder_select="aandcttables mpegvideoenc"
1715 mlp_decoder_select="mlp_parser"
1716 mp1_decoder_select="mpegaudio"
1717 mp1float_decoder_select="mpegaudio"
1718 mp2_decoder_select="mpegaudio"
1719 mp2float_decoder_select="mpegaudio"
1720 mp3_decoder_select="mpegaudio"
1721 mp3adu_decoder_select="mpegaudio"
1722 mp3adufloat_decoder_select="mpegaudio"
1723 mp3float_decoder_select="mpegaudio"
1724 mp3on4_decoder_select="mpegaudio"
1725 mp3on4float_decoder_select="mpegaudio"
1726 mpc7_decoder_select="mpegaudiodsp"
1727 mpc8_decoder_select="mpegaudiodsp"
1728 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1729 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1730 mpeg1video_decoder_select="error_resilience mpegvideo"
1731 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1732 mpeg2video_decoder_select="error_resilience mpegvideo"
1733 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1734 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1735 mpeg4_encoder_select="h263_encoder"
1736 msmpeg4v1_decoder_select="h263_decoder"
1737 msmpeg4v1_encoder_select="h263_encoder"
1738 msmpeg4v2_decoder_select="h263_decoder"
1739 msmpeg4v2_encoder_select="h263_encoder"
1740 msmpeg4v3_decoder_select="h263_decoder"
1741 msmpeg4v3_encoder_select="h263_encoder"
1742 mss2_decoder_select="vc1_decoder"
1743 nellymoser_decoder_select="mdct sinewin"
1744 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1745 nuv_decoder_select="lzo"
1746 png_decoder_select="zlib"
1747 png_encoder_select="zlib"
1748 qcelp_decoder_select="lsp"
1749 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1750 ra_144_encoder_select="audio_frame_queue lpc"
1751 ralf_decoder_select="golomb"
1752 rv10_decoder_select="h263_decoder"
1753 rv10_encoder_select="h263_encoder"
1754 rv20_decoder_select="h263_decoder"
1755 rv20_encoder_select="h263_encoder"
1756 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1757 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1758 shorten_decoder_select="golomb"
1759 sipr_decoder_select="lsp"
1760 snow_decoder_select="dwt rangecoder"
1761 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1762 sonic_decoder_select="golomb"
1763 sonic_encoder_select="golomb"
1764 sonic_ls_encoder_select="golomb"
1765 svq1_decoder_select="error_resilience mpegvideo"
1766 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1767 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1768 svq3_decoder_suggest="zlib"
1769 theora_decoder_select="vp3_decoder"
1770 tiff_decoder_suggest="zlib"
1771 tiff_encoder_suggest="zlib"
1772 truehd_decoder_select="mlp_parser"
1773 tscc_decoder_select="zlib"
1774 twinvq_decoder_select="mdct lsp sinewin"
1775 utvideo_encoder_select="huffman"
1776 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1777 vc1image_decoder_select="vc1_decoder"
1778 vorbis_decoder_select="mdct"
1779 vorbis_encoder_select="mdct"
1780 vp3_decoder_select="vp3dsp videodsp"
1781 vp5_decoder_select="vp3dsp videodsp"
1782 vp6_decoder_select="huffman vp3dsp videodsp"
1783 vp6a_decoder_select="vp6_decoder"
1784 vp6f_decoder_select="vp6_decoder"
1785 vp8_decoder_select="h264pred videodsp"
1786 wmapro_decoder_select="mdct sinewin"
1787 wmav1_decoder_select="mdct sinewin"
1788 wmav1_encoder_select="mdct sinewin"
1789 wmav2_decoder_select="mdct sinewin"
1790 wmav2_encoder_select="mdct sinewin"
1791 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1792 wmv1_decoder_select="h263_decoder"
1793 wmv1_encoder_select="h263_encoder"
1794 wmv2_decoder_select="h263_decoder"
1795 wmv2_encoder_select="h263_encoder"
1796 wmv3_decoder_select="vc1_decoder"
1797 wmv3image_decoder_select="wmv3_decoder"
1798 zerocodec_decoder_select="zlib"
1799 zlib_decoder_select="zlib"
1800 zlib_encoder_select="zlib"
1801 zmbv_decoder_select="zlib"
1802 zmbv_encoder_select="zlib"
1803
1804 # hardware accelerators
1805 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1806 vaapi_deps="va_va_h"
1807 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1808 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1809 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1810
1811 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1812 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1813 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1814 h264_dxva2_hwaccel_deps="dxva2api_h"
1815 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1816 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1817 h264_vda_decoder_select="vda h264_parser h264_decoder"
1818 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1819 h264_vda_hwaccel_select="vda h264_decoder"
1820 h264_vdpau_decoder_select="vdpau h264_decoder"
1821 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1822 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1823 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1824 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1825 mpeg2_crystalhd_decoder_select="crystalhd"
1826 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1827 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1828 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1829 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1830 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1831 mpeg4_crystalhd_decoder_select="crystalhd"
1832 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1833 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1834 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1835 msmpeg4_crystalhd_decoder_select="crystalhd"
1836 vc1_crystalhd_decoder_select="crystalhd"
1837 vc1_dxva2_hwaccel_deps="dxva2api_h"
1838 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1839 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1840 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1841 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1842 wmv3_crystalhd_decoder_select="crystalhd"
1843 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1844 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1845 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1846 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1847
1848 # parsers
1849 h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1850 mpeg4video_parser_select="error_resilience mpegvideo"
1851 mpegvideo_parser_select="error_resilience mpegvideo"
1852 vc1_parser_select="error_resilience mpegvideo"
1853
1854 # external libraries
1855 libaacplus_encoder_deps="libaacplus"
1856 libcelt_decoder_deps="libcelt"
1857 libfaac_encoder_deps="libfaac"
1858 libfaac_encoder_select="audio_frame_queue"
1859 libfdk_aac_encoder_deps="libfdk_aac"
1860 libfdk_aac_encoder_select="audio_frame_queue"
1861 libgsm_decoder_deps="libgsm"
1862 libgsm_encoder_deps="libgsm"
1863 libgsm_ms_decoder_deps="libgsm"
1864 libgsm_ms_encoder_deps="libgsm"
1865 libilbc_decoder_deps="libilbc"
1866 libilbc_encoder_deps="libilbc"
1867 libmodplug_demuxer_deps="libmodplug"
1868 libmp3lame_encoder_deps="libmp3lame"
1869 libmp3lame_encoder_select="audio_frame_queue"
1870 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1871 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1872 libopencore_amrnb_encoder_select="audio_frame_queue"
1873 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1874 libopenjpeg_decoder_deps="libopenjpeg"
1875 libopenjpeg_encoder_deps="libopenjpeg"
1876 libopus_decoder_deps="libopus"
1877 libopus_encoder_deps="libopus"
1878 libopus_encoder_select="audio_frame_queue"
1879 libschroedinger_decoder_deps="libschroedinger"
1880 libschroedinger_encoder_deps="libschroedinger"
1881 libspeex_decoder_deps="libspeex"
1882 libspeex_encoder_deps="libspeex"
1883 libspeex_encoder_select="audio_frame_queue"
1884 libstagefright_h264_decoder_deps="libstagefright_h264"
1885 libtheora_encoder_deps="libtheora"
1886 libtwolame_encoder_deps="libtwolame"
1887 libvo_aacenc_encoder_deps="libvo_aacenc"
1888 libvo_aacenc_encoder_select="audio_frame_queue"
1889 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1890 libvorbis_decoder_deps="libvorbis"
1891 libvorbis_encoder_deps="libvorbis"
1892 libvorbis_encoder_select="audio_frame_queue"
1893 libvpx_vp8_decoder_deps="libvpx"
1894 libvpx_vp8_encoder_deps="libvpx"
1895 libvpx_vp9_decoder_deps="libvpx"
1896 libvpx_vp9_encoder_deps="libvpx"
1897 libx264_encoder_deps="libx264"
1898 libx264rgb_encoder_deps="libx264"
1899 libxavs_encoder_deps="libxavs"
1900 libxvid_encoder_deps="libxvid"
1901 libutvideo_decoder_deps="libutvideo"
1902 libutvideo_encoder_deps="libutvideo"
1903
1904 # demuxers / muxers
1905 ac3_demuxer_select="ac3_parser"
1906 asf_stream_muxer_select="asf_muxer"
1907 avisynth_demuxer_deps="avisynth"
1908 dirac_demuxer_select="dirac_parser"
1909 dts_demuxer_select="dca_parser"
1910 dtshd_demuxer_select="dca_parser"
1911 eac3_demuxer_select="ac3_parser"
1912 f4v_muxer_select="mov_muxer"
1913 flac_demuxer_select="flac_parser"
1914 ipod_muxer_select="mov_muxer"
1915 ismv_muxer_select="mov_muxer"
1916 libnut_demuxer_deps="libnut"
1917 libnut_muxer_deps="libnut"
1918 matroska_audio_muxer_select="matroska_muxer"
1919 matroska_demuxer_suggest="bzlib lzo zlib"
1920 mov_demuxer_suggest="zlib"
1921 mov_muxer_select="rtpenc_chain"
1922 mp3_demuxer_select="mpegaudio_parser"
1923 mp4_muxer_select="mov_muxer"
1924 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1925 mpegtsraw_demuxer_select="mpegts_demuxer"
1926 mxf_d10_muxer_select="mxf_muxer"
1927 ogg_demuxer_select="golomb"
1928 psp_muxer_select="mov_muxer"
1929 rtp_demuxer_select="sdp_demuxer"
1930 rtp_muxer_select="mpegvideo"
1931 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1932 rtsp_demuxer_select="http_protocol rtpdec"
1933 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1934 sap_demuxer_select="sdp_demuxer"
1935 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1936 sdp_demuxer_select="rtpdec"
1937 smoothstreaming_muxer_select="ismv_muxer"
1938 spdif_muxer_select="aac_parser"
1939 tak_demuxer_select="tak_parser"
1940 tg2_muxer_select="mov_muxer"
1941 tgp_muxer_select="mov_muxer"
1942 vobsub_demuxer_select="mpegps_demuxer"
1943 w64_demuxer_deps="wav_demuxer"
1944 w64_muxer_deps="wav_muxer"
1945
1946 # indevs / outdevs
1947 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1948 alsa_outdev_deps="alsa_asoundlib_h"
1949 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1950 caca_outdev_deps="libcaca"
1951 dshow_indev_deps="IBaseFilter"
1952 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1953 dv1394_indev_deps="dv1394 dv_demuxer"
1954 fbdev_indev_deps="linux_fb_h"
1955 iec61883_indev_deps="libiec61883"
1956 jack_indev_deps="jack_jack_h sem_timedwait"
1957 lavfi_indev_deps="avfilter"
1958 libcdio_indev_deps="libcdio"
1959 libdc1394_indev_deps="libdc1394"
1960 libv4l2_indev_deps="libv4l2"
1961 openal_indev_deps="openal"
1962 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1963 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1964 pulse_indev_deps="libpulse"
1965 sdl_outdev_deps="sdl"
1966 sndio_indev_deps="sndio_h"
1967 sndio_outdev_deps="sndio_h"
1968 v4l_indev_deps="linux_videodev_h"
1969 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1970 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1971 vfwcap_indev_extralibs="-lavicap32"
1972 x11grab_indev_deps="x11grab"
1973
1974 # protocols
1975 bluray_protocol_deps="libbluray"
1976 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1977 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1978 ffrtmpcrypt_protocol_select="tcp_protocol"
1979 ffrtmphttp_protocol_deps="!librtmp_protocol"
1980 ffrtmphttp_protocol_select="http_protocol"
1981 gopher_protocol_select="network"
1982 httpproxy_protocol_select="tcp_protocol"
1983 http_protocol_select="tcp_protocol"
1984 https_protocol_select="tls_protocol"
1985 librtmp_protocol_deps="librtmp"
1986 librtmpe_protocol_deps="librtmp"
1987 librtmps_protocol_deps="librtmp"
1988 librtmpt_protocol_deps="librtmp"
1989 librtmpte_protocol_deps="librtmp"
1990 mmsh_protocol_select="http_protocol"
1991 mmst_protocol_select="network"
1992 rtmp_protocol_deps="!librtmp_protocol"
1993 rtmp_protocol_select="tcp_protocol"
1994 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1995 rtmps_protocol_deps="!librtmp_protocol"
1996 rtmps_protocol_select="tls_protocol"
1997 rtmpt_protocol_select="ffrtmphttp_protocol"
1998 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1999 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2000 rtp_protocol_select="udp_protocol"
2001 sctp_protocol_deps="struct_sctp_event_subscribe"
2002 sctp_protocol_select="network"
2003 srtp_protocol_select="rtp_protocol"
2004 tcp_protocol_select="network"
2005 tls_protocol_deps_any="openssl gnutls"
2006 tls_protocol_select="tcp_protocol"
2007 udp_protocol_select="network"
2008
2009 # filters
2010 aconvert_filter_deps="swresample"
2011 amovie_filter_deps="avcodec avformat"
2012 aresample_filter_deps="swresample"
2013 ass_filter_deps="libass"
2014 asyncts_filter_deps="avresample"
2015 atempo_filter_deps="avcodec rdft"
2016 blackframe_filter_deps="gpl"
2017 boxblur_filter_deps="gpl"
2018 colormatrix_filter_deps="gpl"
2019 cropdetect_filter_deps="gpl"
2020 decimate_filter_deps="gpl avcodec"
2021 delogo_filter_deps="gpl"
2022 deshake_filter_deps="avcodec"
2023 drawtext_filter_deps="libfreetype"
2024 ebur128_filter_deps="gpl"
2025 flite_filter_deps="libflite"
2026 frei0r_filter_deps="frei0r dlopen"
2027 frei0r_filter_extralibs='$ldl'
2028 frei0r_src_filter_deps="frei0r dlopen"
2029 frei0r_src_filter_extralibs='$ldl'
2030 geq_filter_deps="gpl"
2031 histeq_filter_deps="gpl"
2032 hqdn3d_filter_deps="gpl"
2033 hue_filter_deps="gpl"
2034 kerndeint_filter_deps="gpl"
2035 movie_filter_deps="avcodec avformat"
2036 mp_filter_deps="gpl avcodec swscale inline_asm"
2037 mptestsrc_filter_deps="gpl"
2038 negate_filter_deps="lut_filter"
2039 noise_filter_deps="gpl"
2040 resample_filter_deps="avresample"
2041 ocv_filter_deps="libopencv"
2042 pan_filter_deps="swresample"
2043 pp_filter_deps="gpl postproc"
2044 removelogo_filter_deps="avcodec avformat swscale"
2045 scale_filter_deps="swscale"
2046 smartblur_filter_deps="gpl swscale"
2047 showspectrum_filter_deps="avcodec rdft"
2048 subtitles_filter_deps="avformat avcodec libass"
2049 super2xsai_filter_deps="gpl"
2050 tinterlace_filter_deps="gpl"
2051 yadif_filter_deps="gpl"
2052 pixfmts_super2xsai_test_deps="super2xsai_filter"
2053 tinterlace_merge_test_deps="tinterlace_filter"
2054 tinterlace_pad_test_deps="tinterlace_filter"
2055
2056 # libraries
2057 avcodec_deps="avutil"
2058 avdevice_deps="avutil avcodec avformat"
2059 avfilter_deps="avutil"
2060 avformat_deps="avutil avcodec"
2061 avresample_deps="avutil"
2062 postproc_deps="avutil gpl"
2063 swscale_deps="avutil"
2064
2065 # programs
2066 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2067 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2068                setpts_filter null_filter anull_filter ffabuffersink_filter"
2069 ffplay_deps="avcodec avformat swscale swresample sdl"
2070 ffplay_select="ffbuffersink_filter rdft crop_filter"
2071 ffprobe_deps="avcodec avformat"
2072 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2073 ffserver_extralibs='$ldl'
2074
2075 # documentation
2076 podpages_deps="perl"
2077 manpages_deps="perl pod2man"
2078 htmlpages_deps="texi2html"
2079 txtpages_deps="makeinfo"
2080 doc_deps_any="manpages htmlpages podpages txtpages"
2081
2082 # default parameters
2083
2084 logfile="config.log"
2085
2086 # installation paths
2087 prefix_default="/usr/local"
2088 bindir_default='${prefix}/bin'
2089 datadir_default='${prefix}/share/ffmpeg'
2090 incdir_default='${prefix}/include'
2091 libdir_default='${prefix}/lib'
2092 mandir_default='${prefix}/share/man'
2093 shlibdir_default="$libdir_default"
2094
2095 # toolchain
2096 ar_default="ar"
2097 cc_default="gcc"
2098 cxx_default="g++"
2099 host_cc_default="gcc"
2100 cp_f="cp -f"
2101 install="install"
2102 ln_s="ln -sf"
2103 nm_default="nm -g"
2104 objformat="elf"
2105 pkg_config_default=pkg-config
2106 ranlib="ranlib"
2107 strip_default="strip"
2108 yasmexe_default="yasm"
2109
2110 nogas=":"
2111
2112 # machine
2113 arch_default=$(uname -m)
2114 cpu="generic"
2115
2116 # OS
2117 target_os_default=$(tolower $(uname -s))
2118 host_os=$target_os_default
2119
2120 # configurable options
2121 enable $PROGRAM_LIST
2122 enable $DOCUMENT_LIST
2123 enable $(filter_out avresample $LIBRARY_LIST)
2124 enable stripping
2125
2126 enable asm
2127 enable debug
2128 enable doc
2129 enable optimizations
2130 enable runtime_cpudetect
2131 enable safe_bitstream_reader
2132 enable static
2133 enable swscale_alpha
2134
2135 # build settings
2136 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2137 FFSERVERLDFLAGS=-Wl,-E
2138 LIBPREF="lib"
2139 LIBSUF=".a"
2140 FULLNAME='$(NAME)$(BUILDSUF)'
2141 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2142 SLIBPREF="lib"
2143 SLIBSUF=".so"
2144 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2145 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2146 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2147 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2148 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2149 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2150
2151 asflags_filter=echo
2152 cflags_filter=echo
2153 ldflags_filter=echo
2154
2155 AS_C='-c'
2156 AS_O='-o $@'
2157 CC_C='-c'
2158 CC_E='-E -o $@'
2159 CC_O='-o $@'
2160 CXX_C='-c'
2161 CXX_O='-o $@'
2162 LD_O='-o $@'
2163 LD_LIB='-l%'
2164 LD_PATH='-L'
2165 HOSTCC_C='-c'
2166 HOSTCC_O='-o $@'
2167 HOSTLD_O='-o $@'
2168
2169 host_cflags='-O3 -g'
2170 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2171 host_libs='-lm'
2172 host_cflags_filter=echo
2173 host_ldflags_filter=echo
2174
2175 target_path='$(CURDIR)'
2176
2177 # since the object filename is not given with the -MM flag, the compiler
2178 # is only able to print the basename, and we must add the path ourselves
2179 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2180 DEPFLAGS='-MM'
2181
2182 # find source path
2183 if test -f configure; then
2184     source_path=.
2185 else
2186     source_path=$(cd $(dirname "$0"); pwd)
2187     echo "$source_path" | grep -q '[[:blank:]]' &&
2188         die "Out of tree builds are impossible with whitespace in source path."
2189     test -e "$source_path/config.h" &&
2190         die "Out of tree builds are impossible with config.h in source dir."
2191 fi
2192
2193 for v in "$@"; do
2194     r=${v#*=}
2195     l=${v%"$r"}
2196     r=$(sh_quote "$r")
2197     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2198 done
2199
2200 find_things(){
2201     thing=$1
2202     pattern=$2
2203     file=$source_path/$3
2204     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2205 }
2206
2207 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2208 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2209 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2210 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2211 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2212 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2213 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2214 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2215 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2216 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2217 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2218
2219 ALL_COMPONENTS="
2220     $BSF_LIST
2221     $DECODER_LIST
2222     $DEMUXER_LIST
2223     $ENCODER_LIST
2224     $FILTER_LIST
2225     $HWACCEL_LIST
2226     $INDEV_LIST
2227     $MUXER_LIST
2228     $OUTDEV_LIST
2229     $PARSER_LIST
2230     $PROTOCOL_LIST
2231 "
2232
2233 for n in $COMPONENT_LIST; do
2234     v=$(toupper ${n%s})_LIST
2235     eval enable \$$v
2236     eval ${n}_if_any="\$$v"
2237 done
2238
2239 enable $ARCH_EXT_LIST
2240
2241 die_unknown(){
2242     echo "Unknown option \"$1\"."
2243     echo "See $0 --help for available options."
2244     exit 1
2245 }
2246
2247 print_3_columns() {
2248     cat | tr ' ' '\n' | sort | pr -r -3 -t
2249 }
2250
2251 show_list() {
2252     suffix=_$1
2253     shift
2254     echo $* | sed s/$suffix//g | print_3_columns
2255     exit 0
2256 }
2257
2258 rand_list(){
2259     IFS=', '
2260     set -- $*
2261     unset IFS
2262     for thing; do
2263         comp=${thing%:*}
2264         prob=${thing#$comp}
2265         prob=${prob#:}
2266         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2267         echo "prob ${prob:-0.5}"
2268         printf '%s\n' $comp
2269     done
2270 }
2271
2272 do_random(){
2273     action=$1
2274     shift
2275     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2276     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2277 }
2278
2279 for opt do
2280     optval="${opt#*=}"
2281     case "$opt" in
2282         --extra-ldflags=*)
2283             add_ldflags $optval
2284         ;;
2285         --extra-libs=*)
2286             add_extralibs $optval
2287         ;;
2288         --disable-devices)
2289             disable $INDEV_LIST $OUTDEV_LIST
2290         ;;
2291         --enable-debug=*)
2292             debuglevel="$optval"
2293         ;;
2294         --disable-programs)
2295             disable $PROGRAM_LIST
2296         ;;
2297         --disable-everything)
2298             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2299         ;;
2300         --disable-all)
2301             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2302             disable $LIBRARY_LIST $PROGRAM_LIST doc
2303         ;;
2304         --enable-random|--disable-random)
2305             action=${opt%%-random}
2306             do_random ${action#--} $COMPONENT_LIST
2307         ;;
2308         --enable-random=*|--disable-random=*)
2309             action=${opt%%-random=*}
2310             do_random ${action#--} $optval
2311         ;;
2312         --enable-*=*|--disable-*=*)
2313             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2314             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2315             eval list=\$$(toupper $thing)_LIST
2316             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2317             list=$(filter "$name" $list)
2318             [ "$list" = "" ] && warn "Option $opt did not match anything"
2319             $action $list
2320         ;;
2321         --enable-?*|--disable-?*)
2322             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2323             if is_in $option $COMPONENT_LIST; then
2324                 test $action = disable && action=unset
2325                 eval $action \$$(toupper ${option%s})_LIST
2326             elif is_in $option $CMDLINE_SELECT; then
2327                 $action $option
2328             else
2329                 die_unknown $opt
2330             fi
2331         ;;
2332         --list-*)
2333             NAME="${opt#--list-}"
2334             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2335             NAME=${NAME%s}
2336             eval show_list $NAME \$$(toupper $NAME)_LIST
2337         ;;
2338         --help|-h) show_help
2339         ;;
2340         --fatal-warnings) enable fatal_warnings
2341         ;;
2342         *)
2343             optname="${opt%%=*}"
2344             optname="${optname#--}"
2345             optname=$(echo "$optname" | sed 's/-/_/g')
2346             if is_in $optname $CMDLINE_SET; then
2347                 eval $optname='$optval'
2348             elif is_in $optname $CMDLINE_APPEND; then
2349                 append $optname "$optval"
2350             else
2351                 die_unknown $opt
2352             fi
2353         ;;
2354     esac
2355 done
2356
2357 disabled logging && logfile=/dev/null
2358
2359 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2360 set >> $logfile
2361
2362 test -n "$cross_prefix" && enable cross_compile
2363
2364 if enabled cross_compile; then
2365     test -n "$arch" && test -n "$target_os" ||
2366         die "Must specify target arch and OS when cross-compiling"
2367 fi
2368
2369 ar_default="${cross_prefix}${ar_default}"
2370 cc_default="${cross_prefix}${cc_default}"
2371 cxx_default="${cross_prefix}${cxx_default}"
2372 nm_default="${cross_prefix}${nm_default}"
2373 pkg_config_default="${cross_prefix}${pkg_config_default}"
2374 ranlib="${cross_prefix}${ranlib}"
2375 strip_default="${cross_prefix}${strip_default}"
2376
2377 sysinclude_default="${sysroot}/usr/include"
2378
2379 case "$toolchain" in
2380     clang-asan)
2381         cc_default="clang"
2382         add_cflags  -faddress-sanitizer
2383         add_ldflags -faddress-sanitizer
2384     ;;
2385     clang-tsan)
2386         cc_default="clang"
2387         add_cflags  -fthread-sanitizer
2388         add_ldflags -fthread-sanitizer
2389     ;;
2390     msvc)
2391         cc_default="c99wrap cl"
2392         ld_default="c99wrap link"
2393         nm_default="dumpbin -symbols"
2394         ar_default="lib"
2395         target_os_default="win32"
2396     ;;
2397     ?*)
2398         die "Unknown toolchain $toolchain"
2399     ;;
2400 esac
2401
2402 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2403 enabled cross_compile || host_cc_default=$cc
2404 set_default host_cc
2405
2406 if ! $pkg_config --version >/dev/null 2>&1; then
2407     warn "$pkg_config not found, library detection may fail."
2408     pkg_config=false
2409 fi
2410
2411 exesuf() {
2412     case $1 in
2413         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2414     esac
2415 }
2416
2417 EXESUF=$(exesuf $target_os)
2418 HOSTEXESUF=$(exesuf $host_os)
2419
2420 # set temporary file name
2421 : ${TMPDIR:=$TEMPDIR}
2422 : ${TMPDIR:=$TMP}
2423 : ${TMPDIR:=/tmp}
2424
2425 if ! check_cmd mktemp -u XXXXXX; then
2426     # simple replacement for missing mktemp
2427     # NOT SAFE FOR GENERAL USE
2428     mktemp(){
2429         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2430     }
2431 fi
2432
2433 tmpfile(){
2434     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2435         (set -C; exec > $tmp) 2>/dev/null ||
2436         die "Unable to create temporary file in $TMPDIR."
2437     append TMPFILES $tmp
2438     eval $1=$tmp
2439 }
2440
2441 trap 'rm -f -- $TMPFILES' EXIT
2442
2443 tmpfile TMPASM .asm
2444 tmpfile TMPC   .c
2445 tmpfile TMPCPP .cpp
2446 tmpfile TMPE   $EXESUF
2447 tmpfile TMPH   .h
2448 tmpfile TMPO   .o
2449 tmpfile TMPS   .S
2450 tmpfile TMPSH  .sh
2451 tmpfile TMPV   .ver
2452
2453 unset -f mktemp
2454
2455 chmod +x $TMPE
2456
2457 # make sure we can execute files in $TMPDIR
2458 cat > $TMPSH 2>> $logfile <<EOF
2459 #! /bin/sh
2460 EOF
2461 chmod +x $TMPSH >> $logfile 2>&1
2462 if ! $TMPSH >> $logfile 2>&1; then
2463     cat <<EOF
2464 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2465 variable to another directory and make sure that it is not mounted noexec.
2466 EOF
2467     die "Sanity test failed."
2468 fi
2469
2470 ccc_flags(){
2471     for flag; do
2472         case $flag in
2473             -std=c99)           echo -c99                       ;;
2474             -mcpu=*)            echo -arch ${flag#*=}           ;;
2475             -mieee)             echo -ieee                      ;;
2476             -O*|-fast)          echo $flag                      ;;
2477             -fno-math-errno)    echo -assume nomath_errno       ;;
2478             -g)                 echo -g3                        ;;
2479             -Wall)              echo -msg_enable level2         ;;
2480             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2481             -Wl,*)              echo $flag                      ;;
2482             -f*|-W*)                                            ;;
2483             *)                  echo $flag                      ;;
2484         esac
2485    done
2486 }
2487
2488 msvc_flags(){
2489     for flag; do
2490         case $flag in
2491             -fomit-frame-pointer) echo -Oy ;;
2492             -g)                   echo -Z7 ;;
2493             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2494                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2495                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2496                                        -wd4554 \
2497                                        -wd4996 -wd4273 ;;
2498             -std=c99)             ;;
2499             -fno-math-errno)      ;;
2500             -fno-common)          ;;
2501             -fno-signed-zeros)    ;;
2502             -fPIC)                ;;
2503             -lz)                  echo zlib.lib ;;
2504             -lavifil32)           echo vfw32.lib ;;
2505             -lavicap32)           echo vfw32.lib user32.lib ;;
2506             -l*)                  echo ${flag#-l}.lib ;;
2507             *)                    echo $flag ;;
2508         esac
2509     done
2510 }
2511
2512 pgi_flags(){
2513     for flag; do
2514         case $flag in
2515             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2516             -fomit-frame-pointer) echo -Mnoframe ;;
2517             -g)                   echo -gopt ;;
2518             *)                    echo $flag ;;
2519         esac
2520     done
2521 }
2522
2523 suncc_flags(){
2524     for flag; do
2525         case $flag in
2526             -march=*|-mcpu=*)
2527                 case "${flag#*=}" in
2528                     native)                   echo -xtarget=native       ;;
2529                     v9|niagara)               echo -xarch=sparc          ;;
2530                     ultrasparc)               echo -xarch=sparcvis       ;;
2531                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2532                     i586|pentium)             echo -xchip=pentium        ;;
2533                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2534                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2535                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2536                     pentium4*)          echo -xtarget=pentium4           ;;
2537                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2538                     *-sse3)             echo -xarch=sse3                 ;;
2539                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2540                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2541                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2542                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2543                     bdver*)                   echo -xarch=avx            ;;
2544                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2545                     k8|opteron|athlon64|athlon-fx)
2546                                               echo -xarch=sse2a          ;;
2547                     athlon*)                  echo -xarch=pentium_proa   ;;
2548                 esac
2549                 ;;
2550             -std=c99)             echo -xc99              ;;
2551             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2552             -fPIC)                echo -KPIC -xcode=pic32 ;;
2553             -W*,*)                echo $flag              ;;
2554             -f*-*|-W*|-mimpure-text)                      ;;
2555             -shared)              echo -G                 ;;
2556             *)                    echo $flag              ;;
2557         esac
2558     done
2559 }
2560
2561 tms470_flags(){
2562     for flag; do
2563         case $flag in
2564             -march=*|-mcpu=*)
2565                 case "${flag#*=}" in
2566                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2567                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2568                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2569                     armv6*|arm11*)          echo -mv=6   ;;
2570                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2571                                             echo -mv=5e  ;;
2572                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2573                 esac
2574                 ;;
2575             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2576             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2577             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2578             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2579             -msoft-float)   echo --float_support=vfplib       ;;
2580             -O[0-3]|-mf=*)  echo $flag                        ;;
2581             -g)             echo -g -mn                       ;;
2582             -pds=*)         echo $flag                        ;;
2583             -D*|-I*)        echo $flag                        ;;
2584             --gcc|--abi=*)  echo $flag                        ;;
2585             -me)            echo $flag                        ;;
2586         esac
2587     done
2588 }
2589
2590 probe_cc(){
2591     pfx=$1
2592     _cc=$2
2593
2594     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2595     unset _ld_o _ldflags _ld_lib _ld_path
2596     unset _depflags _DEPCMD _DEPFLAGS
2597     _flags_filter=echo
2598
2599     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2600         _type=llvm_gcc
2601         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2602         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2603         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2604         _cflags_speed='-O3'
2605         _cflags_size='-Os'
2606     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2607         _type=gcc
2608         gcc_version=$($_cc --version | head -n1)
2609         gcc_basever=$($_cc -dumpversion)
2610         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2611         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2612         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2613         if ! $_cc -dumpversion | grep -q '^2\.'; then
2614             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2615         fi
2616         _cflags_speed='-O3'
2617         _cflags_size='-Os'
2618     elif $_cc --version 2>/dev/null | grep -q Intel; then
2619         _type=icc
2620         _ident=$($_cc --version | head -n1)
2621         _depflags='-MMD'
2622         _cflags_speed='-O3'
2623         _cflags_size='-Os'
2624         _cflags_noopt='-O1'
2625     elif $_cc -v 2>&1 | grep -q xlc; then
2626         _type=xlc
2627         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2628         _cflags_speed='-O5'
2629         _cflags_size='-O5 -qcompact'
2630     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2631         _type=ccc
2632         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2633         _DEPFLAGS='-M'
2634         _cflags_speed='-fast'
2635         _cflags_size='-O1'
2636         _flags_filter=ccc_flags
2637     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2638         test -d "$sysroot" || die "No valid sysroot specified."
2639         _type=armcc
2640         _ident=$($_cc --vsn | head -n1)
2641         armcc_conf="$PWD/armcc.conf"
2642         $_cc --arm_linux_configure                 \
2643              --arm_linux_config_file="$armcc_conf" \
2644              --configure_sysroot="$sysroot"        \
2645              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2646              die "Error creating armcc configuration file."
2647         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2648         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2649         as_default="${cross_prefix}gcc"
2650         _depflags='-MMD'
2651         _cflags_speed='-O3'
2652         _cflags_size='-Os'
2653     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2654         _type=tms470
2655         _ident=$($_cc -version | head -n1 | tr -s ' ')
2656         _flags='--gcc --abi=eabi -me'
2657         _cc_e='-ppl -fe=$@'
2658         _cc_o='-fe=$@'
2659         _depflags='-ppa -ppd=$(@:.o=.d)'
2660         _cflags_speed='-O3 -mf=5'
2661         _cflags_size='-O3 -mf=2'
2662         _flags_filter=tms470_flags
2663     elif $_cc -v 2>&1 | grep -q clang; then
2664         _type=clang
2665         _ident=$($_cc --version | head -n1)
2666         _depflags='-MMD'
2667         _cflags_speed='-O3'
2668         _cflags_size='-Os'
2669     elif $_cc -V 2>&1 | grep -q Sun; then
2670         _type=suncc
2671         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2672         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2673         _DEPFLAGS='-xM1 -xc99'
2674         _ldflags='-std=c99'
2675         _cflags_speed='-O5'
2676         _cflags_size='-O5 -xspace'
2677         _flags_filter=suncc_flags
2678     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2679         _type=pathscale
2680         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2681         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2682         _cflags_speed='-O2'
2683         _cflags_size='-Os'
2684         _flags_filter='filter_out -Wdisabled-optimization'
2685     elif $_cc -v 2>&1 | grep -q Open64; then
2686         _type=open64
2687         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2688         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2689         _cflags_speed='-O2'
2690         _cflags_size='-Os'
2691         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2692     elif $_cc -V 2>&1 | grep -q Portland; then
2693         _type=pgi
2694         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2695         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2696         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2697         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2698         _cflags_noopt="-O1"
2699         _flags_filter=pgi_flags
2700     elif $_cc 2>&1 | grep -q Microsoft; then
2701         _type=msvc
2702         _ident=$($cc 2>&1 | head -n1)
2703         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2704         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2705         _cflags_speed="-O2"
2706         _cflags_size="-O1"
2707         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2708         if $_cc 2>&1 | grep -q Linker; then
2709             _ld_o='-out $@'
2710         else
2711             _ld_o='-Fe$@'
2712         fi
2713         _cc_o='-Fo $@'
2714         _cc_e='-P -Fi $@'
2715         _flags_filter=msvc_flags
2716         _ld_lib='lib%.a'
2717         _ld_path='-libpath:'
2718         _flags='-nologo'
2719         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2720         if [ $pfx = hostcc ]; then
2721             append _cflags -Dsnprintf=_snprintf
2722         fi
2723         disable stripping
2724     fi
2725
2726     eval ${pfx}_type=\$_type
2727     eval ${pfx}_ident=\$_ident
2728 }
2729
2730 set_ccvars(){
2731     eval ${1}_C=\${_cc_c-\${${1}_C}}
2732     eval ${1}_E=\${_cc_e-\${${1}_E}}
2733     eval ${1}_O=\${_cc_o-\${${1}_O}}
2734
2735     if [ -n "$_depflags" ]; then
2736         eval ${1}_DEPFLAGS=\$_depflags
2737     else
2738         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2739         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2740         eval DEP${1}FLAGS=\$_flags
2741     fi
2742 }
2743
2744 probe_cc cc "$cc"
2745 cflags_filter=$_flags_filter
2746 cflags_speed=$_cflags_speed
2747 cflags_size=$_cflags_size
2748 cflags_noopt=$_cflags_noopt
2749 add_cflags $_flags $_cflags
2750 cc_ldflags=$_ldflags
2751 set_ccvars CC
2752
2753 probe_cc hostcc "$host_cc"
2754 host_cflags_filter=$_flags_filter
2755 add_host_cflags  $_flags $_cflags
2756 set_ccvars HOSTCC
2757
2758 test -n "$cc_type" && enable $cc_type ||
2759     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2760
2761 : ${as_default:=$cc}
2762 : ${dep_cc_default:=$cc}
2763 : ${ld_default:=$cc}
2764 : ${host_ld_default:=$host_cc}
2765 set_default ar as dep_cc ld host_ld
2766
2767 probe_cc as "$as"
2768 asflags_filter=$_flags_filter
2769 add_asflags $_flags $_cflags
2770 set_ccvars AS
2771
2772 probe_cc ld "$ld"
2773 ldflags_filter=$_flags_filter
2774 add_ldflags $_flags $_ldflags
2775 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2776 LD_O=${_ld_o-$LD_O}
2777 LD_LIB=${_ld_lib-$LD_LIB}
2778 LD_PATH=${_ld_path-$LD_PATH}
2779
2780 probe_cc hostld "$host_ld"
2781 host_ldflags_filter=$_flags_filter
2782 add_host_ldflags $_flags $_ldflags
2783 HOSTLD_O=${_ld_o-$HOSTLD_O}
2784
2785 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2786     probe_cc depcc "$dep_cc"
2787     CCDEP=${_DEPCMD:-$DEPCMD}
2788     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2789     DEPCCFLAGS=$_flags
2790 fi
2791
2792 if $ar 2>&1 | grep -q Microsoft; then
2793     arflags="-nologo"
2794     ar_o='-out:$@'
2795 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2796     arflags="rq"
2797     ar_o='$@'
2798 else
2799     arflags="rc"
2800     ar_o='$@'
2801 fi
2802
2803 add_cflags $extra_cflags
2804 add_cxxflags $extra_cxxflags
2805 add_asflags $extra_cflags
2806
2807 if test -n "$sysroot"; then
2808     case "$cc_type" in
2809         gcc|llvm_gcc|clang)
2810             add_cppflags --sysroot="$sysroot"
2811             add_ldflags --sysroot="$sysroot"
2812         ;;
2813         tms470)
2814             add_cppflags -I"$sysinclude"
2815             add_ldflags  --sysroot="$sysroot"
2816         ;;
2817     esac
2818 fi
2819
2820 if test "$cpu" = host; then
2821     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2822
2823     case "$cc_type" in
2824         gcc|llvm_gcc)
2825             check_native(){
2826                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2827                 sed -n "/cc1.*$1=/{
2828                             s/.*$1=\\([^ ]*\\).*/\\1/
2829                             p
2830                             q
2831                         }" $TMPE
2832             }
2833             cpu=$(check_native -march || check_native -mcpu)
2834         ;;
2835     esac
2836
2837     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2838 fi
2839
2840 # Deal with common $arch aliases
2841 case "$arch" in
2842     aarch64|arm64)
2843         arch="aarch64"
2844     ;;
2845     arm*|iPad*)
2846         arch="arm"
2847     ;;
2848     mips*|IP*)
2849         arch="mips"
2850     ;;
2851     parisc*|hppa*)
2852         arch="parisc"
2853     ;;
2854     "Power Macintosh"|ppc*|powerpc*)
2855         arch="ppc"
2856     ;;
2857     s390|s390x)
2858         arch="s390"
2859     ;;
2860     sh4|sh)
2861         arch="sh4"
2862     ;;
2863     sun4u|sparc*)
2864         arch="sparc"
2865     ;;
2866     tilegx|tile-gx)
2867         arch="tilegx"
2868     ;;
2869     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2870         arch="x86"
2871     ;;
2872 esac
2873
2874 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2875 enable $arch
2876
2877 # Add processor-specific flags
2878 if enabled aarch64; then
2879
2880     case $cpu in
2881         armv*)
2882             cpuflags="-march=$cpu"
2883         ;;
2884         *)
2885             cpuflags="-mcpu=$cpu"
2886         ;;
2887     esac
2888
2889 elif enabled alpha; then
2890
2891     cpuflags="-mcpu=$cpu"
2892
2893 elif enabled arm; then
2894
2895     check_arm_arch() {
2896         check_cpp_condition stddef.h \
2897             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2898             $cpuflags
2899     }
2900
2901     probe_arm_arch() {
2902         if   check_arm_arch 4;        then echo armv4;
2903         elif check_arm_arch 4T;       then echo armv4t;
2904         elif check_arm_arch 5;        then echo armv5;
2905         elif check_arm_arch 5E;       then echo armv5e;
2906         elif check_arm_arch 5T;       then echo armv5t;
2907         elif check_arm_arch 5TE;      then echo armv5te;
2908         elif check_arm_arch 5TEJ;     then echo armv5te;
2909         elif check_arm_arch 6;        then echo armv6;
2910         elif check_arm_arch 6J;       then echo armv6j;
2911         elif check_arm_arch 6K;       then echo armv6k;
2912         elif check_arm_arch 6Z;       then echo armv6z;
2913         elif check_arm_arch 6ZK;      then echo armv6zk;
2914         elif check_arm_arch 6T2;      then echo armv6t2;
2915         elif check_arm_arch 7;        then echo armv7;
2916         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2917         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2918         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2919         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2920         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2921         fi
2922     }
2923
2924     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2925
2926     case $cpu in
2927         armv*)
2928             cpuflags="-march=$cpu"
2929             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2930         ;;
2931         *)
2932             cpuflags="-mcpu=$cpu"
2933             case $cpu in
2934                 cortex-a*)                               subarch=armv7a  ;;
2935                 cortex-r*)                               subarch=armv7r  ;;
2936                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2937                 arm11*)                                  subarch=armv6   ;;
2938                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2939                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2940                 *)                             subarch=$(probe_arm_arch) ;;
2941             esac
2942         ;;
2943     esac
2944
2945     case "$subarch" in
2946         armv5t*)    enable fast_clz                ;;
2947         armv[6-8]*) enable fast_clz fast_unaligned ;;
2948     esac
2949
2950 elif enabled avr32; then
2951
2952     case $cpu in
2953         ap7[02]0[0-2])
2954             subarch="avr32_ap"
2955             cpuflags="-mpart=$cpu"
2956         ;;
2957         ap)
2958             subarch="avr32_ap"
2959             cpuflags="-march=$cpu"
2960         ;;
2961         uc3[ab]*)
2962             subarch="avr32_uc"
2963             cpuflags="-mcpu=$cpu"
2964         ;;
2965         uc)
2966             subarch="avr32_uc"
2967             cpuflags="-march=$cpu"
2968         ;;
2969     esac
2970
2971 elif enabled bfin; then
2972
2973     cpuflags="-mcpu=$cpu"
2974
2975 elif enabled mips; then
2976
2977     cpuflags="-march=$cpu"
2978
2979     case $cpu in
2980         24kc)
2981             disable mipsfpu
2982             disable mipsdspr1
2983             disable mipsdspr2
2984         ;;
2985         24kf*)
2986             disable mipsdspr1
2987             disable mipsdspr2
2988         ;;
2989         24kec|34kc|1004kc)
2990             disable mipsfpu
2991             disable mipsdspr2
2992         ;;
2993         24kef*|34kf*|1004kf*)
2994             disable mipsdspr2
2995         ;;
2996         74kc)
2997             disable mipsfpu
2998         ;;
2999     esac
3000
3001 elif enabled ppc; then
3002
3003     case $(tolower $cpu) in
3004         601|ppc601|powerpc601)
3005             cpuflags="-mcpu=601"
3006             disable altivec
3007         ;;
3008         603*|ppc603*|powerpc603*)
3009             cpuflags="-mcpu=603"
3010             disable altivec
3011         ;;
3012         604*|ppc604*|powerpc604*)
3013             cpuflags="-mcpu=604"
3014             disable altivec
3015         ;;
3016         g3|75*|ppc75*|powerpc75*)
3017             cpuflags="-mcpu=750"
3018             disable altivec
3019         ;;
3020         g4|745*|ppc745*|powerpc745*)
3021             cpuflags="-mcpu=7450"
3022         ;;
3023         74*|ppc74*|powerpc74*)
3024             cpuflags="-mcpu=7400"
3025         ;;
3026         g5|970|ppc970|powerpc970)
3027             cpuflags="-mcpu=970"
3028         ;;
3029         power[3-7]*)
3030             cpuflags="-mcpu=$cpu"
3031         ;;
3032         cell)
3033             cpuflags="-mcpu=cell"
3034             enable ldbrx
3035         ;;
3036         e500mc)
3037             cpuflags="-mcpu=e500mc"
3038             disable altivec
3039         ;;
3040         e500v2)
3041             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3042             disable altivec
3043         ;;
3044         e500)
3045             cpuflags="-mcpu=8540 -mhard-float"
3046             disable altivec
3047         ;;
3048     esac
3049
3050 elif enabled sparc; then
3051
3052     case $cpu in
3053         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3054             cpuflags="-mcpu=$cpu"
3055             disable vis
3056         ;;
3057         ultrasparc*|niagara[234])
3058             cpuflags="-mcpu=$cpu"
3059         ;;
3060     esac
3061
3062 elif enabled x86; then
3063
3064     case $cpu in
3065         i[345]86|pentium)
3066             cpuflags="-march=$cpu"
3067             disable mmx
3068         ;;
3069         # targets that do NOT support conditional mov (cmov)
3070         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3071             cpuflags="-march=$cpu"
3072             disable cmov
3073         ;;
3074         # targets that do support conditional mov (cmov)
3075         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3076             cpuflags="-march=$cpu"
3077             enable cmov
3078             enable fast_cmov
3079         ;;
3080         # targets that do support conditional mov but on which it's slow
3081         pentium4|pentium4m|prescott|nocona)
3082             cpuflags="-march=$cpu"
3083             enable cmov
3084             disable fast_cmov
3085         ;;
3086     esac
3087
3088 fi
3089
3090 if [ "$cpu" != generic ]; then
3091     add_cflags  $cpuflags
3092     add_asflags $cpuflags
3093 fi
3094
3095 # compiler sanity check
3096 check_exec <<EOF
3097 int main(void){ return 0; }
3098 EOF
3099 if test "$?" != 0; then
3100     echo "$cc is unable to create an executable file."
3101     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3102         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3103         echo "Only do this if you know what cross compiling means."
3104     fi
3105     die "C compiler test failed."
3106 fi
3107
3108 add_cppflags -D_ISOC99_SOURCE
3109 add_cxxflags -D__STDC_CONSTANT_MACROS
3110 check_cflags -std=c99
3111 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3112 #include <stdlib.h>
3113 EOF
3114 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3115 #include <stdlib.h>
3116 EOF
3117
3118 check_host_cflags -std=c99
3119 check_host_cflags -Wall
3120
3121 check_64bit(){
3122     arch32=$1
3123     arch64=$2
3124     expr=$3
3125     check_code cc "" "int test[2*($expr) - 1]" &&
3126         subarch=$arch64 || subarch=$arch32
3127 }
3128
3129 case "$arch" in
3130     aarch64|alpha|ia64)
3131         spic=$shared
3132     ;;
3133     mips)
3134         check_64bit mips mips64 '_MIPS_SIM > 1'
3135         spic=$shared
3136     ;;
3137     parisc)
3138         check_64bit parisc parisc64 'sizeof(void *) > 4'
3139         spic=$shared
3140     ;;
3141     ppc)
3142         check_64bit ppc ppc64 'sizeof(void *) > 4'
3143         spic=$shared
3144     ;;
3145     sparc)
3146         check_64bit sparc sparc64 'sizeof(void *) > 4'
3147         spic=$shared
3148     ;;
3149     x86)
3150         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3151         if test "$subarch" = "x86_64"; then
3152             spic=$shared
3153         fi
3154     ;;
3155     ppc)
3156         check_cc <<EOF && subarch="ppc64"
3157         int test[(int)sizeof(char*) - 7];
3158 EOF
3159     ;;
3160 esac
3161
3162 enable $subarch
3163 enabled spic && enable pic
3164
3165 # OS specific
3166 case $target_os in
3167     haiku)
3168         prefix_default="/boot/common"
3169         network_extralibs="-lnetwork"
3170         host_libs=
3171         ;;
3172     sunos)
3173         FFSERVERLDFLAGS=""
3174         SHFLAGS='-shared -Wl,-h,$$(@F)'
3175         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3176         network_extralibs="-lsocket -lnsl"
3177         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3178         # When using suncc to build, the Solaris linker will mark
3179         # an executable with each instruction set encountered by
3180         # the Solaris assembler.  As our libraries contain their own
3181         # guards for processor-specific code, instead suppress
3182         # generation of the HWCAPS ELF section on Solaris x86 only.
3183         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3184         nm_default='nm -P -g'
3185         ;;
3186     netbsd)
3187         disable symver
3188         oss_indev_extralibs="-lossaudio"
3189         oss_outdev_extralibs="-lossaudio"
3190         enabled gcc || check_ldflags -Wl,-zmuldefs
3191         ;;
3192     openbsd|bitrig)
3193         disable symver
3194         SHFLAGS='-shared'
3195         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3196         SLIB_INSTALL_LINKS=
3197         oss_indev_extralibs="-lossaudio"
3198         oss_outdev_extralibs="-lossaudio"
3199         ;;
3200     dragonfly)
3201         disable symver
3202         ;;
3203     freebsd)
3204         ;;
3205     bsd/os)
3206         add_extralibs -lpoll -lgnugetopt
3207         strip="strip -d"
3208         ;;
3209     darwin)
3210         gas="gas-preprocessor.pl $cc"
3211         enabled ppc && add_asflags -force_cpusubtype_ALL
3212         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3213         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3214         strip="${strip} -x"
3215         add_ldflags -Wl,-dynamic,-search_paths_first
3216         SLIBSUF=".dylib"
3217         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3218         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3219         FFSERVERLDFLAGS=-Wl,-bind_at_load
3220         objformat="macho"
3221         enabled x86_64 && objformat="macho64"
3222         enabled_any pic shared ||
3223             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3224         ;;
3225     mingw32*)
3226         if test $target_os = "mingw32ce"; then
3227             disable network
3228         else
3229             target_os=mingw32
3230         fi
3231         LIBTARGET=i386
3232         if enabled x86_64; then
3233             LIBTARGET="i386:x86-64"
3234         elif enabled arm; then
3235             LIBTARGET=arm-wince
3236         fi
3237         shlibdir_default="$bindir_default"
3238         SLIBPREF=""
3239         SLIBSUF=".dll"
3240         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3241         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3242         dlltool="${cross_prefix}dlltool"
3243         if check_cmd lib.exe -list; then
3244             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3245             if enabled x86_64; then
3246                 LIBTARGET=x64
3247             fi
3248         elif check_cmd $dlltool --version; then
3249             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3250         fi
3251         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3252         SLIB_INSTALL_LINKS=
3253         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3254         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3255         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3256         objformat="win32"
3257         ranlib=:
3258         enable dos_paths
3259         ;;
3260     win32|win64)
3261         if enabled shared; then
3262             # Link to the import library instead of the normal static library
3263             # for shared libs.
3264             LD_LIB='%.lib'
3265             # Cannot build shared and static libraries at the same time with
3266             # MSVC.
3267             disable static
3268         fi
3269         shlibdir_default="$bindir_default"
3270         SLIBPREF=""
3271         SLIBSUF=".dll"
3272         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3273         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3274         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3275         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3276         SLIB_INSTALL_LINKS=
3277         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3278         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3279         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3280         objformat="win32"
3281         ranlib=:
3282         enable dos_paths
3283         ;;
3284     cygwin*)
3285         target_os=cygwin
3286         shlibdir_default="$bindir_default"
3287         SLIBPREF="cyg"
3288         SLIBSUF=".dll"
3289         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3290         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3291         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3292         SLIB_INSTALL_LINKS=
3293         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3294         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3295         objformat="win32"
3296         enable dos_paths
3297         ;;
3298     *-dos|freedos|opendos)
3299         network_extralibs="-lsocket"
3300         objformat="coff"
3301         enable dos_paths
3302         add_cppflags -U__STRICT_ANSI__
3303         ;;
3304     linux)
3305         enable dv1394
3306         ;;
3307     irix*)
3308         target_os=irix
3309         ranlib="echo ignoring ranlib"
3310         ;;
3311     os/2*)
3312         strip="lxlite -CS"
3313         ln_s="cp -f"
3314         objformat="aout"
3315         add_cppflags -D_GNU_SOURCE
3316         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3317         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3318         FFSERVERLDFLAGS=""
3319         LIBSUF="_s.a"
3320         SLIBPREF=""
3321         SLIBSUF=".dll"
3322         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3323         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3324         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3325             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3326             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3327             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3328             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3329             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3330         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3331             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3332         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3333         enable dos_paths
3334         enable_weak os2threads
3335         ;;
3336     gnu/kfreebsd)
3337         add_cppflags -D_BSD_SOURCE
3338         ;;
3339     gnu)
3340         ;;
3341     qnx)
3342         add_cppflags -D_QNX_SOURCE
3343         network_extralibs="-lsocket"
3344         ;;
3345     symbian)
3346         SLIBSUF=".dll"
3347         enable dos_paths
3348         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3349         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3350         add_ldflags -Wl,--target1-abs,--no-undefined \
3351                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3352                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3353         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3354                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3355                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3356         ;;
3357     osf1)
3358         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3359         FFSERVERLDFLAGS=
3360         ;;
3361     minix)
3362         ;;
3363     plan9)
3364         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3365                      -D_REENTRANT_SOURCE        \
3366                      -D_RESEARCH_SOURCE         \
3367                      -DFD_SETSIZE=96            \
3368                      -DHAVE_SOCK_OPTS
3369         add_compat strtod.o strtod=avpriv_strtod
3370         network_extralibs='-lbsd'
3371         exeobjs=compat/plan9/main.o
3372         disable ffserver
3373         ln_s='ln -s -f'
3374         cp_f='cp'
3375         ;;
3376     none)
3377         ;;
3378     *)
3379         die "Unknown OS '$target_os'."
3380         ;;
3381 esac
3382
3383 # determine libc flavour
3384
3385 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3386 if check_cpp_condition features.h "defined __UCLIBC__"; then
3387     libc_type=uclibc
3388     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3389 elif check_cpp_condition features.h "defined __GLIBC__"; then
3390     libc_type=glibc
3391     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3392 # MinGW headers can be installed on Cygwin, so check for newlib first.
3393 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3394     libc_type=newlib
3395     add_cppflags -U__STRICT_ANSI__
3396 elif check_header _mingw.h; then
3397     libc_type=mingw
3398     check_cpp_condition _mingw.h \
3399         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3400             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3401         die "ERROR: MinGW runtime version must be >= 3.15."
3402     add_cppflags -U__STRICT_ANSI__
3403     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3404             __MINGW64_VERSION_MAJOR < 3"; then
3405         add_compat msvcrt/snprintf.o
3406         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3407     fi
3408 elif check_func_headers stdlib.h _get_doserrno; then
3409     libc_type=msvcrt
3410     add_compat strtod.o strtod=avpriv_strtod
3411     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3412                                  _snprintf=avpriv_snprintf  \
3413                                  vsnprintf=avpriv_vsnprintf
3414 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3415     libc_type=klibc
3416 fi
3417
3418 test -n "$libc_type" && enable $libc_type
3419
3420 # hacks for compiler/libc/os combinations
3421
3422 if enabled_all tms470 glibc; then
3423     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3424     add_cppflags -D__USER_LABEL_PREFIX__=
3425     add_cppflags -D__builtin_memset=memset
3426     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3427     add_cflags   -pds=48    # incompatible redefinition of macro
3428 fi
3429
3430 if enabled_all ccc glibc; then
3431     add_ldflags -Wl,-z,now  # calls to libots crash without this
3432 fi
3433
3434 esc(){
3435     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3436 }
3437
3438 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3439
3440 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3441
3442 set_default $PATHS_LIST
3443 set_default nm
3444
3445 # we need to build at least one lib type
3446 if ! enabled_any static shared; then
3447     cat <<EOF
3448 At least one library type must be built.
3449 Specify --enable-static to build the static libraries or --enable-shared to
3450 build the shared libraries as well. To only build the shared libraries specify
3451 --disable-static in addition to --enable-shared.
3452 EOF
3453     exit 1;
3454 fi
3455
3456 die_license_disabled() {
3457     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3458 }
3459
3460 die_license_disabled_gpl() {
3461     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3462 }
3463
3464 die_license_disabled gpl libcdio
3465 die_license_disabled gpl libutvideo
3466 die_license_disabled gpl libx264
3467 die_license_disabled gpl libxavs
3468 die_license_disabled gpl libxvid
3469 die_license_disabled gpl x11grab
3470
3471 die_license_disabled nonfree libaacplus
3472 die_license_disabled nonfree libfaac
3473 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3474 enabled gpl && die_license_disabled_gpl nonfree openssl
3475
3476 die_license_disabled version3 libopencore_amrnb
3477 die_license_disabled version3 libopencore_amrwb
3478 die_license_disabled version3 libvo_aacenc
3479 die_license_disabled version3 libvo_amrwbenc
3480
3481 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3482
3483 disabled optimizations || check_cflags -fomit-frame-pointer
3484
3485 enable_pic() {
3486     enable pic
3487     add_cppflags -DPIC
3488     add_cflags   -fPIC
3489     add_asflags  -fPIC
3490 }
3491
3492 enabled pic && enable_pic
3493
3494 check_cc <<EOF || die "Symbol mangling check failed."
3495 int ff_extern;
3496 EOF
3497 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3498 extern_prefix=${sym%%ff_extern*}
3499
3500 check_cc <<EOF && enable_weak inline_asm
3501 void foo(void) { __asm__ volatile ("" ::); }
3502 EOF
3503
3504 _restrict=
3505 for restrict_keyword in restrict __restrict__ __restrict; do
3506     check_cc <<EOF && _restrict=$restrict_keyword && break
3507 void foo(char * $restrict_keyword p);
3508 EOF
3509 done
3510
3511 check_cc <<EOF && enable attribute_packed
3512 struct { int x; } __attribute__((packed)) x;
3513 EOF
3514
3515 check_cc <<EOF && enable attribute_may_alias
3516 union { int x; } __attribute__((may_alias)) x;
3517 EOF
3518
3519 check_cc <<EOF || die "endian test failed"
3520 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3521 EOF
3522 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3523
3524 if enabled alpha; then
3525
3526     check_cflags -mieee
3527
3528 elif enabled arm; then
3529
3530     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3531 float func(float a, float b){ return a+b; }
3532 EOF
3533
3534     enabled thumb && check_cflags -mthumb || check_cflags -marm
3535     nogas=die
3536
3537     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3538         enable vfp_args
3539     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3540         case "${cross_prefix:-$cc}" in
3541             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3542             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3543 __asm__ (".eabi_attribute 28, 1");
3544 int main(void) { return 0; }
3545 EOF
3546         esac
3547         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3548     fi
3549
3550     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3551     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3552     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3553     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3554     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3555     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3556
3557     [ $target_os = linux ] ||
3558         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3559             $ARCH_EXT_LIST_ARM
3560
3561     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3562     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3563
3564     enabled_all armv6t2 shared !pic && enable_pic
3565
3566 elif enabled mips; then
3567
3568     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3569     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3570      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3571     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3572      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3573     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3574      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3575     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3576      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3577
3578 elif enabled parisc; then
3579
3580     if enabled gcc; then
3581         case $($cc -dumpversion) in
3582             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3583         esac
3584     fi
3585
3586 elif enabled ppc; then
3587
3588     enable local_aligned_8 local_aligned_16
3589
3590     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3591     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3592     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3593     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3594
3595     # AltiVec flags: The FSF version of GCC differs from the Apple version
3596     if enabled altivec; then
3597         nogas=warn
3598         check_cflags -maltivec -mabi=altivec &&
3599         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3600         check_cflags -faltivec
3601
3602         # check if our compiler supports Motorola AltiVec C API
3603         check_cc <<EOF || disable altivec
3604 $inc_altivec_h
3605 int main(void) {
3606     vector signed int v1 = (vector signed int) { 0 };
3607     vector signed int v2 = (vector signed int) { 1 };
3608     v1 = vec_add(v1, v2);
3609     return 0;
3610 }
3611 EOF
3612
3613         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3614     fi
3615
3616 elif enabled sparc; then
3617
3618     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3619
3620 elif enabled x86; then
3621
3622     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3623
3624     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3625
3626     enable local_aligned_8 local_aligned_16
3627
3628     # check whether EBP is available on x86
3629     # As 'i' is stored on the stack, this program will crash
3630     # if the base pointer is used to access it because the
3631     # base pointer is cleared in the inline assembly code.
3632     check_exec_crash <<EOF && enable ebp_available
3633 volatile int i=0;
3634 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3635 return i;
3636 EOF
3637
3638     # check whether EBX is available on x86
3639     check_inline_asm ebx_available '""::"b"(0)' &&
3640         check_inline_asm ebx_available '"":::"%ebx"'
3641
3642     # check whether xmm clobbers are supported
3643     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3644
3645     # check whether binutils is new enough to compile SSSE3/MMXEXT
3646     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3647     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3648
3649     if ! disabled_any asm mmx yasm; then
3650         if check_cmd $yasmexe --version; then
3651             enabled x86_64 && yasm_extra="-m amd64"
3652             yasm_debug="-g dwarf2"
3653         elif check_cmd nasm -v; then
3654             yasmexe=nasm
3655             yasm_debug="-g -F dwarf"
3656             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3657         fi
3658
3659         YASMFLAGS="-f $objformat $yasm_extra"
3660         enabled pic               && append YASMFLAGS "-DPIC"
3661         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3662         case "$objformat" in
3663             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3664         esac
3665
3666         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3667             die "yasm not found, use --disable-yasm for a crippled build"
3668         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3669         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3670         check_yasm "CPU amdnop" && enable cpunop
3671     fi
3672
3673     case "$cpu" in
3674         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3675             disable fast_clz
3676         ;;
3677     esac
3678
3679 fi
3680
3681 if enabled asm; then
3682     as=${gas:=$as}
3683     check_as <<EOF && enable gnu_as || \
3684         $nogas "GNU assembler not found, install gas-preprocessor"
3685 .macro m n
3686 \n: .int 0
3687 .endm
3688 m x
3689 EOF
3690 fi
3691
3692 check_ldflags -Wl,--as-needed
3693
3694 if check_func dlopen; then
3695     ldl=
3696 elif check_func dlopen -ldl; then
3697     ldl=-ldl
3698 fi
3699
3700 if ! disabled network; then
3701     check_type "sys/types.h sys/socket.h" socklen_t
3702     check_type netdb.h "struct addrinfo"
3703     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3704     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3705     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3706     check_type netinet/in.h "struct sockaddr_in6"
3707     check_type poll.h "struct pollfd"
3708     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3709     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3710     check_type netinet/sctp.h "struct sctp_event_subscribe"
3711     check_func getaddrinfo $network_extralibs
3712     check_func getservbyport $network_extralibs
3713     # Prefer arpa/inet.h over winsock2
3714     if check_header arpa/inet.h ; then
3715         check_func closesocket
3716     elif check_header winsock2.h ; then
3717         check_func_headers winsock2.h closesocket -lws2 &&
3718             network_extralibs="-lws2" ||
3719         { check_func_headers winsock2.h closesocket -lws2_32 &&
3720             network_extralibs="-lws2_32"; }
3721         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3722         check_type ws2tcpip.h socklen_t
3723         check_type ws2tcpip.h "struct addrinfo"
3724         check_type ws2tcpip.h "struct group_source_req"
3725         check_type ws2tcpip.h "struct ip_mreq_source"
3726         check_type ws2tcpip.h "struct ipv6_mreq"
3727         check_type winsock2.h "struct pollfd"
3728         check_type ws2tcpip.h "struct sockaddr_in6"
3729         check_type ws2tcpip.h "struct sockaddr_storage"
3730         check_struct winsock2.h "struct sockaddr" sa_len
3731     else
3732         disable network
3733     fi
3734 fi
3735
3736 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3737 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3738
3739 check_func  access
3740 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3741 check_func  fcntl
3742 check_func  fork
3743 check_func  gethrtime
3744 check_func  getopt
3745 check_func  getrusage
3746 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3747 check_func  gettimeofday
3748 check_func  iconv || check_lib2 iconv.h iconv -liconv
3749 check_func  inet_aton $network_extralibs
3750 check_func  isatty
3751 check_func  localtime_r
3752 check_func  ${malloc_prefix}memalign            && enable memalign
3753 check_func  mkstemp
3754 check_func  mmap
3755 check_func  mprotect
3756 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3757 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3758 check_func  setrlimit
3759 check_func  strerror_r
3760 check_func  sched_getaffinity
3761 check_func  sysconf
3762 check_func  sysctl
3763 check_func  usleep
3764 check_func_headers conio.h kbhit
3765 check_func_headers windows.h PeekNamedPipe
3766 check_func_headers io.h setmode
3767 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3768 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3769 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3770 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3771 check_func_headers windows.h GetProcessAffinityMask
3772 check_func_headers windows.h GetProcessTimes
3773 check_func_headers windows.h GetSystemTimeAsFileTime
3774 check_func_headers windows.h MapViewOfFile
3775 check_func_headers windows.h SetConsoleTextAttribute
3776 check_func_headers windows.h Sleep
3777 check_func_headers windows.h VirtualAlloc
3778 check_func_headers glob.h glob
3779
3780 check_header direct.h
3781 check_header dlfcn.h
3782 check_header dxva.h
3783 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3784 check_header io.h
3785 check_header libcrystalhd/libcrystalhd_if.h
3786 check_header malloc.h
3787 check_header poll.h
3788 check_header sys/mman.h
3789 check_header sys/param.h
3790 check_header sys/resource.h
3791 check_header sys/select.h
3792 check_header sys/time.h
3793 check_header termios.h
3794 check_header unistd.h
3795 check_header vdpau/vdpau.h
3796 check_header vdpau/vdpau_x11.h
3797 check_header VideoDecodeAcceleration/VDADecoder.h
3798 check_header windows.h
3799 check_header X11/extensions/XvMClib.h
3800 check_header asm/types.h
3801
3802 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3803 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3804
3805 if ! disabled w32threads && ! enabled pthreads; then
3806     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3807 fi
3808
3809 # check for some common methods of building with pthread support
3810 # do this before the optional library checks as some of them require pthreads
3811 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3812     enable pthreads
3813     if check_func pthread_create; then
3814         :
3815     elif check_func pthread_create -pthread; then
3816         add_cflags -pthread
3817         add_extralibs -pthread
3818     elif check_func pthread_create -pthreads; then
3819         add_cflags -pthreads
3820         add_extralibs -pthreads
3821     elif check_func pthread_create -lpthreadGC2; then
3822         add_extralibs -lpthreadGC2
3823     elif ! check_lib pthread.h pthread_create -lpthread; then
3824         disable pthreads
3825     fi
3826 fi
3827
3828 for thread in $THREADS_LIST; do
3829     if enabled $thread; then
3830         test -n "$thread_type" &&
3831             die "ERROR: Only one thread type must be selected." ||
3832             thread_type="$thread"
3833     fi
3834 done
3835
3836 if enabled pthreads; then
3837   check_func pthread_cancel
3838 fi
3839
3840 check_lib math.h sin -lm && LIBM="-lm"
3841 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3842 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3843
3844 atan2f_args=2
3845 ldexpf_args=2
3846 powf_args=2
3847
3848 for func in $MATH_FUNCS; do
3849     eval check_mathfunc $func \${${func}_args:-1}
3850 done
3851
3852 # these are off by default, so fail if requested and not available
3853 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3854 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3855 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3856 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3857 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3858 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3859 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3860 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3861 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3862                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3863                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3864 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3865 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3866 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3867 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
3868 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3869 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3870 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3871                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3872                         done || die "ERROR: libgsm not found"; }
3873 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3874 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3875 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3876 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3877 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3878 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3879 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3880 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3881                          check_lib openjpeg.h opj_version -lopenjpeg ||
3882                          die "ERROR: libopenjpeg not found"; }
3883 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3884 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3885 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3886 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3887 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3888 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3889 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3890     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3891     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3892 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3893 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3894                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3895                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3896 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3897 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3898 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3899 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3900 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3901 enabled libvpx     && {
3902     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3903                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3904     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3905                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3906     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3907     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3908 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3909                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3910                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3911 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3912 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3913 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3914                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3915                         die "ERROR: openal not found"; } &&
3916                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3917                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3918 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3919                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3920                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3921                         die "ERROR: openssl not found"; }
3922
3923 if enabled gnutls; then
3924     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3925     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3926 fi
3927
3928 # libdc1394 check
3929 if enabled libdc1394; then
3930     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3931         enable libdc1394_2; } ||
3932     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3933         enable libdc1394_1; } ||
3934     die "ERROR: No version of libdc1394 found "
3935 fi
3936
3937 SDL_CONFIG="${cross_prefix}sdl-config"
3938 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3939     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3940     enable sdl &&
3941     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3942 else
3943   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3944     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3945     sdl_libs=$("${SDL_CONFIG}" --libs)
3946     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3947     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3948     enable sdl &&
3949     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3950   fi
3951 fi
3952 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3953
3954 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3955 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3956 perl --version > /dev/null 2>&1 && enable perl || disable perl
3957 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3958 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3959
3960 check_header linux/fb.h
3961 check_header linux/videodev.h
3962 check_header linux/videodev2.h
3963 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3964
3965 check_header sys/videoio.h
3966
3967 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3968 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3969 # w32api 3.12 had it defined wrong
3970 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3971
3972 check_type "dshow.h" IBaseFilter
3973
3974 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3975 { check_header dev/bktr/ioctl_meteor.h &&
3976   check_header dev/bktr/ioctl_bt848.h; } ||
3977 { check_header machine/ioctl_meteor.h &&
3978   check_header machine/ioctl_bt848.h; } ||
3979 { check_header dev/video/meteor/ioctl_meteor.h &&
3980   check_header dev/video/bktr/ioctl_bt848.h; } ||
3981 check_header dev/ic/bt8xx.h
3982
3983 check_header sndio.h
3984 if check_struct sys/soundcard.h audio_buf_info bytes; then
3985     enable_safe sys/soundcard.h
3986 else
3987     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3988     #include <sys/soundcard.h>
3989     audio_buf_info abc;
3990 EOF
3991 fi
3992 check_header soundcard.h
3993
3994 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3995
3996 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3997     check_func jack_port_get_latency_range -ljack
3998
3999 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4000
4001 if enabled libcdio; then
4002     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4003 fi
4004
4005 enabled x11grab                                           &&
4006 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4007 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4008 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4009
4010 if ! disabled vaapi; then
4011     check_lib va/va.h vaInitialize -lva && {
4012         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||