Merge commit '215cdd35efd625ec28ef5846f1692b18f7c2c230'
[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 dxva2_deps="dxva2api_h"
1807 vaapi_deps="va_va_h"
1808 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1809 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1810 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1811
1812 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1813 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1814 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1815 h264_dxva2_hwaccel_deps="dxva2"
1816 h264_dxva2_hwaccel_select="h264_decoder"
1817 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1818 h264_vda_decoder_select="vda h264_parser h264_decoder"
1819 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1820 h264_vda_hwaccel_select="vda h264_decoder"
1821 h264_vdpau_decoder_select="vdpau h264_decoder"
1822 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1823 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1824 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1825 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1826 mpeg2_crystalhd_decoder_select="crystalhd"
1827 mpeg2_dxva2_hwaccel_deps="dxva2"
1828 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1829 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1830 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1831 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1832 mpeg4_crystalhd_decoder_select="crystalhd"
1833 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1834 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1835 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1836 msmpeg4_crystalhd_decoder_select="crystalhd"
1837 vc1_crystalhd_decoder_select="crystalhd"
1838 vc1_dxva2_hwaccel_deps="dxva2"
1839 vc1_dxva2_hwaccel_select="vc1_decoder"
1840 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1841 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1842 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1843 wmv3_crystalhd_decoder_select="crystalhd"
1844 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1845 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1846 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1847 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1848
1849 # parsers
1850 h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1851 mpeg4video_parser_select="error_resilience mpegvideo"
1852 mpegvideo_parser_select="error_resilience mpegvideo"
1853 vc1_parser_select="error_resilience mpegvideo"
1854
1855 # external libraries
1856 libaacplus_encoder_deps="libaacplus"
1857 libcelt_decoder_deps="libcelt"
1858 libfaac_encoder_deps="libfaac"
1859 libfaac_encoder_select="audio_frame_queue"
1860 libfdk_aac_encoder_deps="libfdk_aac"
1861 libfdk_aac_encoder_select="audio_frame_queue"
1862 libgsm_decoder_deps="libgsm"
1863 libgsm_encoder_deps="libgsm"
1864 libgsm_ms_decoder_deps="libgsm"
1865 libgsm_ms_encoder_deps="libgsm"
1866 libilbc_decoder_deps="libilbc"
1867 libilbc_encoder_deps="libilbc"
1868 libmodplug_demuxer_deps="libmodplug"
1869 libmp3lame_encoder_deps="libmp3lame"
1870 libmp3lame_encoder_select="audio_frame_queue"
1871 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1872 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1873 libopencore_amrnb_encoder_select="audio_frame_queue"
1874 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1875 libopenjpeg_decoder_deps="libopenjpeg"
1876 libopenjpeg_encoder_deps="libopenjpeg"
1877 libopus_decoder_deps="libopus"
1878 libopus_encoder_deps="libopus"
1879 libopus_encoder_select="audio_frame_queue"
1880 libschroedinger_decoder_deps="libschroedinger"
1881 libschroedinger_encoder_deps="libschroedinger"
1882 libspeex_decoder_deps="libspeex"
1883 libspeex_encoder_deps="libspeex"
1884 libspeex_encoder_select="audio_frame_queue"
1885 libstagefright_h264_decoder_deps="libstagefright_h264"
1886 libtheora_encoder_deps="libtheora"
1887 libtwolame_encoder_deps="libtwolame"
1888 libvo_aacenc_encoder_deps="libvo_aacenc"
1889 libvo_aacenc_encoder_select="audio_frame_queue"
1890 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1891 libvorbis_decoder_deps="libvorbis"
1892 libvorbis_encoder_deps="libvorbis"
1893 libvorbis_encoder_select="audio_frame_queue"
1894 libvpx_vp8_decoder_deps="libvpx"
1895 libvpx_vp8_encoder_deps="libvpx"
1896 libvpx_vp9_decoder_deps="libvpx"
1897 libvpx_vp9_encoder_deps="libvpx"
1898 libx264_encoder_deps="libx264"
1899 libx264rgb_encoder_deps="libx264"
1900 libxavs_encoder_deps="libxavs"
1901 libxvid_encoder_deps="libxvid"
1902 libutvideo_decoder_deps="libutvideo"
1903 libutvideo_encoder_deps="libutvideo"
1904
1905 # demuxers / muxers
1906 ac3_demuxer_select="ac3_parser"
1907 asf_stream_muxer_select="asf_muxer"
1908 avisynth_demuxer_deps="avisynth"
1909 dirac_demuxer_select="dirac_parser"
1910 dts_demuxer_select="dca_parser"
1911 dtshd_demuxer_select="dca_parser"
1912 eac3_demuxer_select="ac3_parser"
1913 f4v_muxer_select="mov_muxer"
1914 flac_demuxer_select="flac_parser"
1915 ipod_muxer_select="mov_muxer"
1916 ismv_muxer_select="mov_muxer"
1917 libnut_demuxer_deps="libnut"
1918 libnut_muxer_deps="libnut"
1919 matroska_audio_muxer_select="matroska_muxer"
1920 matroska_demuxer_suggest="bzlib lzo zlib"
1921 mov_demuxer_suggest="zlib"
1922 mov_muxer_select="rtpenc_chain"
1923 mp3_demuxer_select="mpegaudio_parser"
1924 mp4_muxer_select="mov_muxer"
1925 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1926 mpegtsraw_demuxer_select="mpegts_demuxer"
1927 mxf_d10_muxer_select="mxf_muxer"
1928 ogg_demuxer_select="golomb"
1929 psp_muxer_select="mov_muxer"
1930 rtp_demuxer_select="sdp_demuxer"
1931 rtp_muxer_select="mpegvideo"
1932 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1933 rtsp_demuxer_select="http_protocol rtpdec"
1934 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1935 sap_demuxer_select="sdp_demuxer"
1936 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1937 sdp_demuxer_select="rtpdec"
1938 smoothstreaming_muxer_select="ismv_muxer"
1939 spdif_muxer_select="aac_parser"
1940 tak_demuxer_select="tak_parser"
1941 tg2_muxer_select="mov_muxer"
1942 tgp_muxer_select="mov_muxer"
1943 vobsub_demuxer_select="mpegps_demuxer"
1944 w64_demuxer_deps="wav_demuxer"
1945 w64_muxer_deps="wav_muxer"
1946
1947 # indevs / outdevs
1948 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1949 alsa_outdev_deps="alsa_asoundlib_h"
1950 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1951 caca_outdev_deps="libcaca"
1952 dshow_indev_deps="IBaseFilter"
1953 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1954 dv1394_indev_deps="dv1394 dv_demuxer"
1955 fbdev_indev_deps="linux_fb_h"
1956 iec61883_indev_deps="libiec61883"
1957 jack_indev_deps="jack_jack_h sem_timedwait"
1958 lavfi_indev_deps="avfilter"
1959 libcdio_indev_deps="libcdio"
1960 libdc1394_indev_deps="libdc1394"
1961 libv4l2_indev_deps="libv4l2"
1962 openal_indev_deps="openal"
1963 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1964 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1965 pulse_indev_deps="libpulse"
1966 sdl_outdev_deps="sdl"
1967 sndio_indev_deps="sndio_h"
1968 sndio_outdev_deps="sndio_h"
1969 v4l_indev_deps="linux_videodev_h"
1970 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1971 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1972 vfwcap_indev_extralibs="-lavicap32"
1973 x11grab_indev_deps="x11grab"
1974
1975 # protocols
1976 bluray_protocol_deps="libbluray"
1977 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1978 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1979 ffrtmpcrypt_protocol_select="tcp_protocol"
1980 ffrtmphttp_protocol_deps="!librtmp_protocol"
1981 ffrtmphttp_protocol_select="http_protocol"
1982 gopher_protocol_select="network"
1983 httpproxy_protocol_select="tcp_protocol"
1984 http_protocol_select="tcp_protocol"
1985 https_protocol_select="tls_protocol"
1986 librtmp_protocol_deps="librtmp"
1987 librtmpe_protocol_deps="librtmp"
1988 librtmps_protocol_deps="librtmp"
1989 librtmpt_protocol_deps="librtmp"
1990 librtmpte_protocol_deps="librtmp"
1991 mmsh_protocol_select="http_protocol"
1992 mmst_protocol_select="network"
1993 rtmp_protocol_deps="!librtmp_protocol"
1994 rtmp_protocol_select="tcp_protocol"
1995 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1996 rtmps_protocol_deps="!librtmp_protocol"
1997 rtmps_protocol_select="tls_protocol"
1998 rtmpt_protocol_select="ffrtmphttp_protocol"
1999 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2000 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2001 rtp_protocol_select="udp_protocol"
2002 sctp_protocol_deps="struct_sctp_event_subscribe"
2003 sctp_protocol_select="network"
2004 srtp_protocol_select="rtp_protocol"
2005 tcp_protocol_select="network"
2006 tls_protocol_deps_any="openssl gnutls"
2007 tls_protocol_select="tcp_protocol"
2008 udp_protocol_select="network"
2009
2010 # filters
2011 aconvert_filter_deps="swresample"
2012 amovie_filter_deps="avcodec avformat"
2013 aresample_filter_deps="swresample"
2014 ass_filter_deps="libass"
2015 asyncts_filter_deps="avresample"
2016 atempo_filter_deps="avcodec rdft"
2017 blackframe_filter_deps="gpl"
2018 boxblur_filter_deps="gpl"
2019 colormatrix_filter_deps="gpl"
2020 cropdetect_filter_deps="gpl"
2021 decimate_filter_deps="gpl avcodec"
2022 delogo_filter_deps="gpl"
2023 deshake_filter_deps="avcodec"
2024 drawtext_filter_deps="libfreetype"
2025 ebur128_filter_deps="gpl"
2026 flite_filter_deps="libflite"
2027 frei0r_filter_deps="frei0r dlopen"
2028 frei0r_filter_extralibs='$ldl'
2029 frei0r_src_filter_deps="frei0r dlopen"
2030 frei0r_src_filter_extralibs='$ldl'
2031 geq_filter_deps="gpl"
2032 histeq_filter_deps="gpl"
2033 hqdn3d_filter_deps="gpl"
2034 hue_filter_deps="gpl"
2035 kerndeint_filter_deps="gpl"
2036 movie_filter_deps="avcodec avformat"
2037 mp_filter_deps="gpl avcodec swscale inline_asm"
2038 mptestsrc_filter_deps="gpl"
2039 negate_filter_deps="lut_filter"
2040 noise_filter_deps="gpl"
2041 resample_filter_deps="avresample"
2042 ocv_filter_deps="libopencv"
2043 pan_filter_deps="swresample"
2044 pp_filter_deps="gpl postproc"
2045 removelogo_filter_deps="avcodec avformat swscale"
2046 scale_filter_deps="swscale"
2047 smartblur_filter_deps="gpl swscale"
2048 showspectrum_filter_deps="avcodec rdft"
2049 subtitles_filter_deps="avformat avcodec libass"
2050 super2xsai_filter_deps="gpl"
2051 tinterlace_filter_deps="gpl"
2052 yadif_filter_deps="gpl"
2053 pixfmts_super2xsai_test_deps="super2xsai_filter"
2054 tinterlace_merge_test_deps="tinterlace_filter"
2055 tinterlace_pad_test_deps="tinterlace_filter"
2056
2057 # libraries
2058 avcodec_deps="avutil"
2059 avdevice_deps="avutil avcodec avformat"
2060 avfilter_deps="avutil"
2061 avformat_deps="avutil avcodec"
2062 avresample_deps="avutil"
2063 postproc_deps="avutil gpl"
2064 swscale_deps="avutil"
2065
2066 # programs
2067 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2068 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2069                setpts_filter null_filter anull_filter ffabuffersink_filter"
2070 ffplay_deps="avcodec avformat swscale swresample sdl"
2071 ffplay_select="ffbuffersink_filter rdft crop_filter"
2072 ffprobe_deps="avcodec avformat"
2073 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2074 ffserver_extralibs='$ldl'
2075
2076 # documentation
2077 podpages_deps="perl"
2078 manpages_deps="perl pod2man"
2079 htmlpages_deps="texi2html"
2080 txtpages_deps="makeinfo"
2081 doc_deps_any="manpages htmlpages podpages txtpages"
2082
2083 # default parameters
2084
2085 logfile="config.log"
2086
2087 # installation paths
2088 prefix_default="/usr/local"
2089 bindir_default='${prefix}/bin'
2090 datadir_default='${prefix}/share/ffmpeg'
2091 incdir_default='${prefix}/include'
2092 libdir_default='${prefix}/lib'
2093 mandir_default='${prefix}/share/man'
2094 shlibdir_default="$libdir_default"
2095
2096 # toolchain
2097 ar_default="ar"
2098 cc_default="gcc"
2099 cxx_default="g++"
2100 host_cc_default="gcc"
2101 cp_f="cp -f"
2102 install="install"
2103 ln_s="ln -sf"
2104 nm_default="nm -g"
2105 objformat="elf"
2106 pkg_config_default=pkg-config
2107 ranlib="ranlib"
2108 strip_default="strip"
2109 yasmexe_default="yasm"
2110
2111 nogas=":"
2112
2113 # machine
2114 arch_default=$(uname -m)
2115 cpu="generic"
2116
2117 # OS
2118 target_os_default=$(tolower $(uname -s))
2119 host_os=$target_os_default
2120
2121 # configurable options
2122 enable $PROGRAM_LIST
2123 enable $DOCUMENT_LIST
2124 enable $(filter_out avresample $LIBRARY_LIST)
2125 enable stripping
2126
2127 enable asm
2128 enable debug
2129 enable doc
2130 enable optimizations
2131 enable runtime_cpudetect
2132 enable safe_bitstream_reader
2133 enable static
2134 enable swscale_alpha
2135
2136 # build settings
2137 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2138 FFSERVERLDFLAGS=-Wl,-E
2139 LIBPREF="lib"
2140 LIBSUF=".a"
2141 FULLNAME='$(NAME)$(BUILDSUF)'
2142 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2143 SLIBPREF="lib"
2144 SLIBSUF=".so"
2145 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2146 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2147 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2148 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2149 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2150 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2151
2152 asflags_filter=echo
2153 cflags_filter=echo
2154 ldflags_filter=echo
2155
2156 AS_C='-c'
2157 AS_O='-o $@'
2158 CC_C='-c'
2159 CC_E='-E -o $@'
2160 CC_O='-o $@'
2161 CXX_C='-c'
2162 CXX_O='-o $@'
2163 LD_O='-o $@'
2164 LD_LIB='-l%'
2165 LD_PATH='-L'
2166 HOSTCC_C='-c'
2167 HOSTCC_O='-o $@'
2168 HOSTLD_O='-o $@'
2169
2170 host_cflags='-O3 -g'
2171 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2172 host_libs='-lm'
2173 host_cflags_filter=echo
2174 host_ldflags_filter=echo
2175
2176 target_path='$(CURDIR)'
2177
2178 # since the object filename is not given with the -MM flag, the compiler
2179 # is only able to print the basename, and we must add the path ourselves
2180 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2181 DEPFLAGS='-MM'
2182
2183 # find source path
2184 if test -f configure; then
2185     source_path=.
2186 else
2187     source_path=$(cd $(dirname "$0"); pwd)
2188     echo "$source_path" | grep -q '[[:blank:]]' &&
2189         die "Out of tree builds are impossible with whitespace in source path."
2190     test -e "$source_path/config.h" &&
2191         die "Out of tree builds are impossible with config.h in source dir."
2192 fi
2193
2194 for v in "$@"; do
2195     r=${v#*=}
2196     l=${v%"$r"}
2197     r=$(sh_quote "$r")
2198     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2199 done
2200
2201 find_things(){
2202     thing=$1
2203     pattern=$2
2204     file=$source_path/$3
2205     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2206 }
2207
2208 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2209 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2210 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2211 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2212 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2213 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2214 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2215 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2216 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2217 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2218 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2219
2220 ALL_COMPONENTS="
2221     $BSF_LIST
2222     $DECODER_LIST
2223     $DEMUXER_LIST
2224     $ENCODER_LIST
2225     $FILTER_LIST
2226     $HWACCEL_LIST
2227     $INDEV_LIST
2228     $MUXER_LIST
2229     $OUTDEV_LIST
2230     $PARSER_LIST
2231     $PROTOCOL_LIST
2232 "
2233
2234 for n in $COMPONENT_LIST; do
2235     v=$(toupper ${n%s})_LIST
2236     eval enable \$$v
2237     eval ${n}_if_any="\$$v"
2238 done
2239
2240 enable $ARCH_EXT_LIST
2241
2242 die_unknown(){
2243     echo "Unknown option \"$1\"."
2244     echo "See $0 --help for available options."
2245     exit 1
2246 }
2247
2248 print_3_columns() {
2249     cat | tr ' ' '\n' | sort | pr -r -3 -t
2250 }
2251
2252 show_list() {
2253     suffix=_$1
2254     shift
2255     echo $* | sed s/$suffix//g | print_3_columns
2256     exit 0
2257 }
2258
2259 rand_list(){
2260     IFS=', '
2261     set -- $*
2262     unset IFS
2263     for thing; do
2264         comp=${thing%:*}
2265         prob=${thing#$comp}
2266         prob=${prob#:}
2267         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2268         echo "prob ${prob:-0.5}"
2269         printf '%s\n' $comp
2270     done
2271 }
2272
2273 do_random(){
2274     action=$1
2275     shift
2276     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2277     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2278 }
2279
2280 for opt do
2281     optval="${opt#*=}"
2282     case "$opt" in
2283         --extra-ldflags=*)
2284             add_ldflags $optval
2285         ;;
2286         --extra-libs=*)
2287             add_extralibs $optval
2288         ;;
2289         --disable-devices)
2290             disable $INDEV_LIST $OUTDEV_LIST
2291         ;;
2292         --enable-debug=*)
2293             debuglevel="$optval"
2294         ;;
2295         --disable-programs)
2296             disable $PROGRAM_LIST
2297         ;;
2298         --disable-everything)
2299             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2300         ;;
2301         --disable-all)
2302             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2303             disable $LIBRARY_LIST $PROGRAM_LIST doc
2304         ;;
2305         --enable-random|--disable-random)
2306             action=${opt%%-random}
2307             do_random ${action#--} $COMPONENT_LIST
2308         ;;
2309         --enable-random=*|--disable-random=*)
2310             action=${opt%%-random=*}
2311             do_random ${action#--} $optval
2312         ;;
2313         --enable-*=*|--disable-*=*)
2314             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2315             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2316             eval list=\$$(toupper $thing)_LIST
2317             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2318             list=$(filter "$name" $list)
2319             [ "$list" = "" ] && warn "Option $opt did not match anything"
2320             $action $list
2321         ;;
2322         --enable-?*|--disable-?*)
2323             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2324             if is_in $option $COMPONENT_LIST; then
2325                 test $action = disable && action=unset
2326                 eval $action \$$(toupper ${option%s})_LIST
2327             elif is_in $option $CMDLINE_SELECT; then
2328                 $action $option
2329             else
2330                 die_unknown $opt
2331             fi
2332         ;;
2333         --list-*)
2334             NAME="${opt#--list-}"
2335             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2336             NAME=${NAME%s}
2337             eval show_list $NAME \$$(toupper $NAME)_LIST
2338         ;;
2339         --help|-h) show_help
2340         ;;
2341         --fatal-warnings) enable fatal_warnings
2342         ;;
2343         *)
2344             optname="${opt%%=*}"
2345             optname="${optname#--}"
2346             optname=$(echo "$optname" | sed 's/-/_/g')
2347             if is_in $optname $CMDLINE_SET; then
2348                 eval $optname='$optval'
2349             elif is_in $optname $CMDLINE_APPEND; then
2350                 append $optname "$optval"
2351             else
2352                 die_unknown $opt
2353             fi
2354         ;;
2355     esac
2356 done
2357
2358 disabled logging && logfile=/dev/null
2359
2360 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2361 set >> $logfile
2362
2363 test -n "$cross_prefix" && enable cross_compile
2364
2365 if enabled cross_compile; then
2366     test -n "$arch" && test -n "$target_os" ||
2367         die "Must specify target arch and OS when cross-compiling"
2368 fi
2369
2370 ar_default="${cross_prefix}${ar_default}"
2371 cc_default="${cross_prefix}${cc_default}"
2372 cxx_default="${cross_prefix}${cxx_default}"
2373 nm_default="${cross_prefix}${nm_default}"
2374 pkg_config_default="${cross_prefix}${pkg_config_default}"
2375 ranlib="${cross_prefix}${ranlib}"
2376 strip_default="${cross_prefix}${strip_default}"
2377
2378 sysinclude_default="${sysroot}/usr/include"
2379
2380 case "$toolchain" in
2381     clang-asan)
2382         cc_default="clang"
2383         add_cflags  -faddress-sanitizer
2384         add_ldflags -faddress-sanitizer
2385     ;;
2386     clang-tsan)
2387         cc_default="clang"
2388         add_cflags  -fthread-sanitizer
2389         add_ldflags -fthread-sanitizer
2390     ;;
2391     msvc)
2392         cc_default="c99wrap cl"
2393         ld_default="c99wrap link"
2394         nm_default="dumpbin -symbols"
2395         ar_default="lib"
2396         target_os_default="win32"
2397     ;;
2398     ?*)
2399         die "Unknown toolchain $toolchain"
2400     ;;
2401 esac
2402
2403 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2404 enabled cross_compile || host_cc_default=$cc
2405 set_default host_cc
2406
2407 if ! $pkg_config --version >/dev/null 2>&1; then
2408     warn "$pkg_config not found, library detection may fail."
2409     pkg_config=false
2410 fi
2411
2412 exesuf() {
2413     case $1 in
2414         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2415     esac
2416 }
2417
2418 EXESUF=$(exesuf $target_os)
2419 HOSTEXESUF=$(exesuf $host_os)
2420
2421 # set temporary file name
2422 : ${TMPDIR:=$TEMPDIR}
2423 : ${TMPDIR:=$TMP}
2424 : ${TMPDIR:=/tmp}
2425
2426 if ! check_cmd mktemp -u XXXXXX; then
2427     # simple replacement for missing mktemp
2428     # NOT SAFE FOR GENERAL USE
2429     mktemp(){
2430         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2431     }
2432 fi
2433
2434 tmpfile(){
2435     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2436         (set -C; exec > $tmp) 2>/dev/null ||
2437         die "Unable to create temporary file in $TMPDIR."
2438     append TMPFILES $tmp
2439     eval $1=$tmp
2440 }
2441
2442 trap 'rm -f -- $TMPFILES' EXIT
2443
2444 tmpfile TMPASM .asm
2445 tmpfile TMPC   .c
2446 tmpfile TMPCPP .cpp
2447 tmpfile TMPE   $EXESUF
2448 tmpfile TMPH   .h
2449 tmpfile TMPO   .o
2450 tmpfile TMPS   .S
2451 tmpfile TMPSH  .sh
2452 tmpfile TMPV   .ver
2453
2454 unset -f mktemp
2455
2456 chmod +x $TMPE
2457
2458 # make sure we can execute files in $TMPDIR
2459 cat > $TMPSH 2>> $logfile <<EOF
2460 #! /bin/sh
2461 EOF
2462 chmod +x $TMPSH >> $logfile 2>&1
2463 if ! $TMPSH >> $logfile 2>&1; then
2464     cat <<EOF
2465 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2466 variable to another directory and make sure that it is not mounted noexec.
2467 EOF
2468     die "Sanity test failed."
2469 fi
2470
2471 ccc_flags(){
2472     for flag; do
2473         case $flag in
2474             -std=c99)           echo -c99                       ;;
2475             -mcpu=*)            echo -arch ${flag#*=}           ;;
2476             -mieee)             echo -ieee                      ;;
2477             -O*|-fast)          echo $flag                      ;;
2478             -fno-math-errno)    echo -assume nomath_errno       ;;
2479             -g)                 echo -g3                        ;;
2480             -Wall)              echo -msg_enable level2         ;;
2481             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2482             -Wl,*)              echo $flag                      ;;
2483             -f*|-W*)                                            ;;
2484             *)                  echo $flag                      ;;
2485         esac
2486    done
2487 }
2488
2489 msvc_flags(){
2490     for flag; do
2491         case $flag in
2492             -fomit-frame-pointer) echo -Oy ;;
2493             -g)                   echo -Z7 ;;
2494             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2495                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2496                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2497                                        -wd4554 \
2498                                        -wd4996 -wd4273 ;;
2499             -std=c99)             ;;
2500             -fno-math-errno)      ;;
2501             -fno-common)          ;;
2502             -fno-signed-zeros)    ;;
2503             -fPIC)                ;;
2504             -lz)                  echo zlib.lib ;;
2505             -lavifil32)           echo vfw32.lib ;;
2506             -lavicap32)           echo vfw32.lib user32.lib ;;
2507             -l*)                  echo ${flag#-l}.lib ;;
2508             *)                    echo $flag ;;
2509         esac
2510     done
2511 }
2512
2513 pgi_flags(){
2514     for flag; do
2515         case $flag in
2516             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2517             -fomit-frame-pointer) echo -Mnoframe ;;
2518             -g)                   echo -gopt ;;
2519             *)                    echo $flag ;;
2520         esac
2521     done
2522 }
2523
2524 suncc_flags(){
2525     for flag; do
2526         case $flag in
2527             -march=*|-mcpu=*)
2528                 case "${flag#*=}" in
2529                     native)                   echo -xtarget=native       ;;
2530                     v9|niagara)               echo -xarch=sparc          ;;
2531                     ultrasparc)               echo -xarch=sparcvis       ;;
2532                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2533                     i586|pentium)             echo -xchip=pentium        ;;
2534                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2535                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2536                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2537                     pentium4*)          echo -xtarget=pentium4           ;;
2538                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2539                     *-sse3)             echo -xarch=sse3                 ;;
2540                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2541                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2542                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2543                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2544                     bdver*)                   echo -xarch=avx            ;;
2545                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2546                     k8|opteron|athlon64|athlon-fx)
2547                                               echo -xarch=sse2a          ;;
2548                     athlon*)                  echo -xarch=pentium_proa   ;;
2549                 esac
2550                 ;;
2551             -std=c99)             echo -xc99              ;;
2552             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2553             -fPIC)                echo -KPIC -xcode=pic32 ;;
2554             -W*,*)                echo $flag              ;;
2555             -f*-*|-W*|-mimpure-text)                      ;;
2556             -shared)              echo -G                 ;;
2557             *)                    echo $flag              ;;
2558         esac
2559     done
2560 }
2561
2562 tms470_flags(){
2563     for flag; do
2564         case $flag in
2565             -march=*|-mcpu=*)
2566                 case "${flag#*=}" in
2567                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2568                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2569                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2570                     armv6*|arm11*)          echo -mv=6   ;;
2571                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2572                                             echo -mv=5e  ;;
2573                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2574                 esac
2575                 ;;
2576             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2577             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2578             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2579             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2580             -msoft-float)   echo --float_support=vfplib       ;;
2581             -O[0-3]|-mf=*)  echo $flag                        ;;
2582             -g)             echo -g -mn                       ;;
2583             -pds=*)         echo $flag                        ;;
2584             -D*|-I*)        echo $flag                        ;;
2585             --gcc|--abi=*)  echo $flag                        ;;
2586             -me)            echo $flag                        ;;
2587         esac
2588     done
2589 }
2590
2591 probe_cc(){
2592     pfx=$1
2593     _cc=$2
2594
2595     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2596     unset _ld_o _ldflags _ld_lib _ld_path
2597     unset _depflags _DEPCMD _DEPFLAGS
2598     _flags_filter=echo
2599
2600     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2601         _type=llvm_gcc
2602         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2603         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2604         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2605         _cflags_speed='-O3'
2606         _cflags_size='-Os'
2607     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2608         _type=gcc
2609         gcc_version=$($_cc --version | head -n1)
2610         gcc_basever=$($_cc -dumpversion)
2611         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2612         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2613         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2614         if ! $_cc -dumpversion | grep -q '^2\.'; then
2615             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2616         fi
2617         _cflags_speed='-O3'
2618         _cflags_size='-Os'
2619     elif $_cc --version 2>/dev/null | grep -q Intel; then
2620         _type=icc
2621         _ident=$($_cc --version | head -n1)
2622         _depflags='-MMD'
2623         _cflags_speed='-O3'
2624         _cflags_size='-Os'
2625         _cflags_noopt='-O1'
2626     elif $_cc -v 2>&1 | grep -q xlc; then
2627         _type=xlc
2628         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2629         _cflags_speed='-O5'
2630         _cflags_size='-O5 -qcompact'
2631     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2632         _type=ccc
2633         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2634         _DEPFLAGS='-M'
2635         _cflags_speed='-fast'
2636         _cflags_size='-O1'
2637         _flags_filter=ccc_flags
2638     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2639         test -d "$sysroot" || die "No valid sysroot specified."
2640         _type=armcc
2641         _ident=$($_cc --vsn | head -n1)
2642         armcc_conf="$PWD/armcc.conf"
2643         $_cc --arm_linux_configure                 \
2644              --arm_linux_config_file="$armcc_conf" \
2645              --configure_sysroot="$sysroot"        \
2646              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2647              die "Error creating armcc configuration file."
2648         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2649         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2650         as_default="${cross_prefix}gcc"
2651         _depflags='-MMD'
2652         _cflags_speed='-O3'
2653         _cflags_size='-Os'
2654     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2655         _type=tms470
2656         _ident=$($_cc -version | head -n1 | tr -s ' ')
2657         _flags='--gcc --abi=eabi -me'
2658         _cc_e='-ppl -fe=$@'
2659         _cc_o='-fe=$@'
2660         _depflags='-ppa -ppd=$(@:.o=.d)'
2661         _cflags_speed='-O3 -mf=5'
2662         _cflags_size='-O3 -mf=2'
2663         _flags_filter=tms470_flags
2664     elif $_cc -v 2>&1 | grep -q clang; then
2665         _type=clang
2666         _ident=$($_cc --version | head -n1)
2667         _depflags='-MMD'
2668         _cflags_speed='-O3'
2669         _cflags_size='-Os'
2670     elif $_cc -V 2>&1 | grep -q Sun; then
2671         _type=suncc
2672         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2673         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2674         _DEPFLAGS='-xM1 -xc99'
2675         _ldflags='-std=c99'
2676         _cflags_speed='-O5'
2677         _cflags_size='-O5 -xspace'
2678         _flags_filter=suncc_flags
2679     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2680         _type=pathscale
2681         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2682         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2683         _cflags_speed='-O2'
2684         _cflags_size='-Os'
2685         _flags_filter='filter_out -Wdisabled-optimization'
2686     elif $_cc -v 2>&1 | grep -q Open64; then
2687         _type=open64
2688         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2689         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2690         _cflags_speed='-O2'
2691         _cflags_size='-Os'
2692         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2693     elif $_cc -V 2>&1 | grep -q Portland; then
2694         _type=pgi
2695         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2696         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2697         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2698         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2699         _cflags_noopt="-O1"
2700         _flags_filter=pgi_flags
2701     elif $_cc 2>&1 | grep -q Microsoft; then
2702         _type=msvc
2703         _ident=$($cc 2>&1 | head -n1)
2704         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2705         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2706         _cflags_speed="-O2"
2707         _cflags_size="-O1"
2708         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2709         if $_cc 2>&1 | grep -q Linker; then
2710             _ld_o='-out $@'
2711         else
2712             _ld_o='-Fe$@'
2713         fi
2714         _cc_o='-Fo $@'
2715         _cc_e='-P -Fi $@'
2716         _flags_filter=msvc_flags
2717         _ld_lib='lib%.a'
2718         _ld_path='-libpath:'
2719         _flags='-nologo'
2720         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2721         if [ $pfx = hostcc ]; then
2722             append _cflags -Dsnprintf=_snprintf
2723         fi
2724         disable stripping
2725     fi
2726
2727     eval ${pfx}_type=\$_type
2728     eval ${pfx}_ident=\$_ident
2729 }
2730
2731 set_ccvars(){
2732     eval ${1}_C=\${_cc_c-\${${1}_C}}
2733     eval ${1}_E=\${_cc_e-\${${1}_E}}
2734     eval ${1}_O=\${_cc_o-\${${1}_O}}
2735
2736     if [ -n "$_depflags" ]; then
2737         eval ${1}_DEPFLAGS=\$_depflags
2738     else
2739         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2740         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2741         eval DEP${1}FLAGS=\$_flags
2742     fi
2743 }
2744
2745 probe_cc cc "$cc"
2746 cflags_filter=$_flags_filter
2747 cflags_speed=$_cflags_speed
2748 cflags_size=$_cflags_size
2749 cflags_noopt=$_cflags_noopt
2750 add_cflags $_flags $_cflags
2751 cc_ldflags=$_ldflags
2752 set_ccvars CC
2753
2754 probe_cc hostcc "$host_cc"
2755 host_cflags_filter=$_flags_filter
2756 add_host_cflags  $_flags $_cflags
2757 set_ccvars HOSTCC
2758
2759 test -n "$cc_type" && enable $cc_type ||
2760     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2761
2762 : ${as_default:=$cc}
2763 : ${dep_cc_default:=$cc}
2764 : ${ld_default:=$cc}
2765 : ${host_ld_default:=$host_cc}
2766 set_default ar as dep_cc ld host_ld
2767
2768 probe_cc as "$as"
2769 asflags_filter=$_flags_filter
2770 add_asflags $_flags $_cflags
2771 set_ccvars AS
2772
2773 probe_cc ld "$ld"
2774 ldflags_filter=$_flags_filter
2775 add_ldflags $_flags $_ldflags
2776 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2777 LD_O=${_ld_o-$LD_O}
2778 LD_LIB=${_ld_lib-$LD_LIB}
2779 LD_PATH=${_ld_path-$LD_PATH}
2780
2781 probe_cc hostld "$host_ld"
2782 host_ldflags_filter=$_flags_filter
2783 add_host_ldflags $_flags $_ldflags
2784 HOSTLD_O=${_ld_o-$HOSTLD_O}
2785
2786 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2787     probe_cc depcc "$dep_cc"
2788     CCDEP=${_DEPCMD:-$DEPCMD}
2789     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2790     DEPCCFLAGS=$_flags
2791 fi
2792
2793 if $ar 2>&1 | grep -q Microsoft; then
2794     arflags="-nologo"
2795     ar_o='-out:$@'
2796 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2797     arflags="rq"
2798     ar_o='$@'
2799 else
2800     arflags="rc"
2801     ar_o='$@'
2802 fi
2803
2804 add_cflags $extra_cflags
2805 add_cxxflags $extra_cxxflags
2806 add_asflags $extra_cflags
2807
2808 if test -n "$sysroot"; then
2809     case "$cc_type" in
2810         gcc|llvm_gcc|clang)
2811             add_cppflags --sysroot="$sysroot"
2812             add_ldflags --sysroot="$sysroot"
2813         ;;
2814         tms470)
2815             add_cppflags -I"$sysinclude"
2816             add_ldflags  --sysroot="$sysroot"
2817         ;;
2818     esac
2819 fi
2820
2821 if test "$cpu" = host; then
2822     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2823
2824     case "$cc_type" in
2825         gcc|llvm_gcc)
2826             check_native(){
2827                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2828                 sed -n "/cc1.*$1=/{
2829                             s/.*$1=\\([^ ]*\\).*/\\1/
2830                             p
2831                             q
2832                         }" $TMPE
2833             }
2834             cpu=$(check_native -march || check_native -mcpu)
2835         ;;
2836     esac
2837
2838     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2839 fi
2840
2841 # Deal with common $arch aliases
2842 case "$arch" in
2843     aarch64|arm64)
2844         arch="aarch64"
2845     ;;
2846     arm*|iPad*)
2847         arch="arm"
2848     ;;
2849     mips*|IP*)
2850         arch="mips"
2851     ;;
2852     parisc*|hppa*)
2853         arch="parisc"
2854     ;;
2855     "Power Macintosh"|ppc*|powerpc*)
2856         arch="ppc"
2857     ;;
2858     s390|s390x)
2859         arch="s390"
2860     ;;
2861     sh4|sh)
2862         arch="sh4"
2863     ;;
2864     sun4u|sparc*)
2865         arch="sparc"
2866     ;;
2867     tilegx|tile-gx)
2868         arch="tilegx"
2869     ;;
2870     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2871         arch="x86"
2872     ;;
2873 esac
2874
2875 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2876 enable $arch
2877
2878 # Add processor-specific flags
2879 if enabled aarch64; then
2880
2881     case $cpu in
2882         armv*)
2883             cpuflags="-march=$cpu"
2884         ;;
2885         *)
2886             cpuflags="-mcpu=$cpu"
2887         ;;
2888     esac
2889
2890 elif enabled alpha; then
2891
2892     cpuflags="-mcpu=$cpu"
2893
2894 elif enabled arm; then
2895
2896     check_arm_arch() {
2897         check_cpp_condition stddef.h \
2898             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2899             $cpuflags
2900     }
2901
2902     probe_arm_arch() {
2903         if   check_arm_arch 4;        then echo armv4;
2904         elif check_arm_arch 4T;       then echo armv4t;
2905         elif check_arm_arch 5;        then echo armv5;
2906         elif check_arm_arch 5E;       then echo armv5e;
2907         elif check_arm_arch 5T;       then echo armv5t;
2908         elif check_arm_arch 5TE;      then echo armv5te;
2909         elif check_arm_arch 5TEJ;     then echo armv5te;
2910         elif check_arm_arch 6;        then echo armv6;
2911         elif check_arm_arch 6J;       then echo armv6j;
2912         elif check_arm_arch 6K;       then echo armv6k;
2913         elif check_arm_arch 6Z;       then echo armv6z;
2914         elif check_arm_arch 6ZK;      then echo armv6zk;
2915         elif check_arm_arch 6T2;      then echo armv6t2;
2916         elif check_arm_arch 7;        then echo armv7;
2917         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2918         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2919         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2920         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2921         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2922         fi
2923     }
2924
2925     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2926
2927     case $cpu in
2928         armv*)
2929             cpuflags="-march=$cpu"
2930             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2931         ;;
2932         *)
2933             cpuflags="-mcpu=$cpu"
2934             case $cpu in
2935                 cortex-a*)                               subarch=armv7a  ;;
2936                 cortex-r*)                               subarch=armv7r  ;;
2937                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2938                 arm11*)                                  subarch=armv6   ;;
2939                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2940                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2941                 *)                             subarch=$(probe_arm_arch) ;;
2942             esac
2943         ;;
2944     esac
2945
2946     case "$subarch" in
2947         armv5t*)    enable fast_clz                ;;
2948         armv[6-8]*) enable fast_clz fast_unaligned ;;
2949     esac
2950
2951 elif enabled avr32; then
2952
2953     case $cpu in
2954         ap7[02]0[0-2])
2955             subarch="avr32_ap"
2956             cpuflags="-mpart=$cpu"
2957         ;;
2958         ap)
2959             subarch="avr32_ap"
2960             cpuflags="-march=$cpu"
2961         ;;
2962         uc3[ab]*)
2963             subarch="avr32_uc"
2964             cpuflags="-mcpu=$cpu"
2965         ;;
2966         uc)
2967             subarch="avr32_uc"
2968             cpuflags="-march=$cpu"
2969         ;;
2970     esac
2971
2972 elif enabled bfin; then
2973
2974     cpuflags="-mcpu=$cpu"
2975
2976 elif enabled mips; then
2977
2978     cpuflags="-march=$cpu"
2979
2980     case $cpu in
2981         24kc)
2982             disable mipsfpu
2983             disable mipsdspr1
2984             disable mipsdspr2
2985         ;;
2986         24kf*)
2987             disable mipsdspr1
2988             disable mipsdspr2
2989         ;;
2990         24kec|34kc|1004kc)
2991             disable mipsfpu
2992             disable mipsdspr2
2993         ;;
2994         24kef*|34kf*|1004kf*)
2995             disable mipsdspr2
2996         ;;
2997         74kc)
2998             disable mipsfpu
2999         ;;
3000     esac
3001
3002 elif enabled ppc; then
3003
3004     case $(tolower $cpu) in
3005         601|ppc601|powerpc601)
3006             cpuflags="-mcpu=601"
3007             disable altivec
3008         ;;
3009         603*|ppc603*|powerpc603*)
3010             cpuflags="-mcpu=603"
3011             disable altivec
3012         ;;
3013         604*|ppc604*|powerpc604*)
3014             cpuflags="-mcpu=604"
3015             disable altivec
3016         ;;
3017         g3|75*|ppc75*|powerpc75*)
3018             cpuflags="-mcpu=750"
3019             disable altivec
3020         ;;
3021         g4|745*|ppc745*|powerpc745*)
3022             cpuflags="-mcpu=7450"
3023         ;;
3024         74*|ppc74*|powerpc74*)
3025             cpuflags="-mcpu=7400"
3026         ;;
3027         g5|970|ppc970|powerpc970)
3028             cpuflags="-mcpu=970"
3029         ;;
3030         power[3-7]*)
3031             cpuflags="-mcpu=$cpu"
3032         ;;
3033         cell)
3034             cpuflags="-mcpu=cell"
3035             enable ldbrx
3036         ;;
3037         e500mc)
3038             cpuflags="-mcpu=e500mc"
3039             disable altivec
3040         ;;
3041         e500v2)
3042             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3043             disable altivec
3044         ;;
3045         e500)
3046             cpuflags="-mcpu=8540 -mhard-float"
3047             disable altivec
3048         ;;
3049     esac
3050
3051 elif enabled sparc; then
3052
3053     case $cpu in
3054         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3055             cpuflags="-mcpu=$cpu"
3056             disable vis
3057         ;;
3058         ultrasparc*|niagara[234])
3059             cpuflags="-mcpu=$cpu"
3060         ;;
3061     esac
3062
3063 elif enabled x86; then
3064
3065     case $cpu in
3066         i[345]86|pentium)
3067             cpuflags="-march=$cpu"
3068             disable mmx
3069         ;;
3070         # targets that do NOT support conditional mov (cmov)
3071         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3072             cpuflags="-march=$cpu"
3073             disable cmov
3074         ;;
3075         # targets that do support conditional mov (cmov)
3076         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3077             cpuflags="-march=$cpu"
3078             enable cmov
3079             enable fast_cmov
3080         ;;
3081         # targets that do support conditional mov but on which it's slow
3082         pentium4|pentium4m|prescott|nocona)
3083             cpuflags="-march=$cpu"
3084             enable cmov
3085             disable fast_cmov
3086         ;;
3087     esac
3088
3089 fi
3090
3091 if [ "$cpu" != generic ]; then
3092     add_cflags  $cpuflags
3093     add_asflags $cpuflags
3094 fi
3095
3096 # compiler sanity check
3097 check_exec <<EOF
3098 int main(void){ return 0; }
3099 EOF
3100 if test "$?" != 0; then
3101     echo "$cc is unable to create an executable file."
3102     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3103         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3104         echo "Only do this if you know what cross compiling means."
3105     fi
3106     die "C compiler test failed."
3107 fi
3108
3109 add_cppflags -D_ISOC99_SOURCE
3110 add_cxxflags -D__STDC_CONSTANT_MACROS
3111 check_cflags -std=c99
3112 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3113 #include <stdlib.h>
3114 EOF
3115 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3116 #include <stdlib.h>
3117 EOF
3118
3119 check_host_cflags -std=c99
3120 check_host_cflags -Wall
3121
3122 check_64bit(){
3123     arch32=$1
3124     arch64=$2
3125     expr=$3
3126     check_code cc "" "int test[2*($expr) - 1]" &&
3127         subarch=$arch64 || subarch=$arch32
3128 }
3129
3130 case "$arch" in
3131     aarch64|alpha|ia64)
3132         spic=$shared
3133     ;;
3134     mips)
3135         check_64bit mips mips64 '_MIPS_SIM > 1'
3136         spic=$shared
3137     ;;
3138     parisc)
3139         check_64bit parisc parisc64 'sizeof(void *) > 4'
3140         spic=$shared
3141     ;;
3142     ppc)
3143         check_64bit ppc ppc64 'sizeof(void *) > 4'
3144         spic=$shared
3145     ;;
3146     sparc)
3147         check_64bit sparc sparc64 'sizeof(void *) > 4'
3148         spic=$shared
3149     ;;
3150     x86)
3151         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3152         if test "$subarch" = "x86_64"; then
3153             spic=$shared
3154         fi
3155     ;;
3156     ppc)
3157         check_cc <<EOF && subarch="ppc64"
3158         int test[(int)sizeof(char*) - 7];
3159 EOF
3160     ;;
3161 esac
3162
3163 enable $subarch
3164 enabled spic && enable pic
3165
3166 # OS specific
3167 case $target_os in
3168     haiku)
3169         prefix_default="/boot/common"
3170         network_extralibs="-lnetwork"
3171         host_libs=
3172         ;;
3173     sunos)
3174         FFSERVERLDFLAGS=""
3175         SHFLAGS='-shared -Wl,-h,$$(@F)'
3176         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3177         network_extralibs="-lsocket -lnsl"
3178         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3179         # When using suncc to build, the Solaris linker will mark
3180         # an executable with each instruction set encountered by
3181         # the Solaris assembler.  As our libraries contain their own
3182         # guards for processor-specific code, instead suppress
3183         # generation of the HWCAPS ELF section on Solaris x86 only.
3184         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3185         nm_default='nm -P -g'
3186         ;;
3187     netbsd)
3188         disable symver
3189         oss_indev_extralibs="-lossaudio"
3190         oss_outdev_extralibs="-lossaudio"
3191         enabled gcc || check_ldflags -Wl,-zmuldefs
3192         ;;
3193     openbsd|bitrig)
3194         disable symver
3195         SHFLAGS='-shared'
3196         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3197         SLIB_INSTALL_LINKS=
3198         oss_indev_extralibs="-lossaudio"
3199         oss_outdev_extralibs="-lossaudio"
3200         ;;
3201     dragonfly)
3202         disable symver
3203         ;;
3204     freebsd)
3205         ;;
3206     bsd/os)
3207         add_extralibs -lpoll -lgnugetopt
3208         strip="strip -d"
3209         ;;
3210     darwin)
3211         gas="gas-preprocessor.pl $cc"
3212         enabled ppc && add_asflags -force_cpusubtype_ALL
3213         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3214         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3215         strip="${strip} -x"
3216         add_ldflags -Wl,-dynamic,-search_paths_first
3217         SLIBSUF=".dylib"
3218         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3219         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3220         FFSERVERLDFLAGS=-Wl,-bind_at_load
3221         objformat="macho"
3222         enabled x86_64 && objformat="macho64"
3223         enabled_any pic shared ||
3224             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3225         ;;
3226     mingw32*)
3227         if test $target_os = "mingw32ce"; then
3228             disable network
3229         else
3230             target_os=mingw32
3231         fi
3232         LIBTARGET=i386
3233         if enabled x86_64; then
3234             LIBTARGET="i386:x86-64"
3235         elif enabled arm; then
3236             LIBTARGET=arm-wince
3237         fi
3238         shlibdir_default="$bindir_default"
3239         SLIBPREF=""
3240         SLIBSUF=".dll"
3241         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3242         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3243         dlltool="${cross_prefix}dlltool"
3244         if check_cmd lib.exe -list; then
3245             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3246             if enabled x86_64; then
3247                 LIBTARGET=x64
3248             fi
3249         elif check_cmd $dlltool --version; then
3250             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3251         fi
3252         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3253         SLIB_INSTALL_LINKS=
3254         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3255         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3256         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3257         objformat="win32"
3258         ranlib=:
3259         enable dos_paths
3260         ;;
3261     win32|win64)
3262         if enabled shared; then
3263             # Link to the import library instead of the normal static library
3264             # for shared libs.
3265             LD_LIB='%.lib'
3266             # Cannot build shared and static libraries at the same time with
3267             # MSVC.
3268             disable static
3269         fi
3270         shlibdir_default="$bindir_default"
3271         SLIBPREF=""
3272         SLIBSUF=".dll"
3273         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3274         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3275         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3276         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3277         SLIB_INSTALL_LINKS=
3278         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3279         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3280         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3281         objformat="win32"
3282         ranlib=:
3283         enable dos_paths
3284         ;;
3285     cygwin*)
3286         target_os=cygwin
3287         shlibdir_default="$bindir_default"
3288         SLIBPREF="cyg"
3289         SLIBSUF=".dll"
3290         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3291         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3292         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3293         SLIB_INSTALL_LINKS=
3294         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3295         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3296         objformat="win32"
3297         enable dos_paths
3298         ;;
3299     *-dos|freedos|opendos)
3300         network_extralibs="-lsocket"
3301         objformat="coff"
3302         enable dos_paths
3303         add_cppflags -U__STRICT_ANSI__
3304         ;;
3305     linux)
3306         enable dv1394
3307         ;;
3308     irix*)
3309         target_os=irix
3310         ranlib="echo ignoring ranlib"
3311         ;;
3312     os/2*)
3313         strip="lxlite -CS"
3314         ln_s="cp -f"
3315         objformat="aout"
3316         add_cppflags -D_GNU_SOURCE
3317         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3318         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3319         FFSERVERLDFLAGS=""
3320         LIBSUF="_s.a"
3321         SLIBPREF=""
3322         SLIBSUF=".dll"
3323         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3324         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3325         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3326             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3327             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3328             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3329             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3330             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3331         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3332             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3333         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3334         enable dos_paths
3335         enable_weak os2threads
3336         ;;
3337     gnu/kfreebsd)
3338         add_cppflags -D_BSD_SOURCE
3339         ;;
3340     gnu)
3341         ;;
3342     qnx)
3343         add_cppflags -D_QNX_SOURCE
3344         network_extralibs="-lsocket"
3345         ;;
3346     symbian)
3347         SLIBSUF=".dll"
3348         enable dos_paths
3349         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3350         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3351         add_ldflags -Wl,--target1-abs,--no-undefined \
3352                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3353                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3354         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3355                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3356                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3357         ;;
3358     osf1)
3359         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3360         FFSERVERLDFLAGS=
3361         ;;
3362     minix)
3363         ;;
3364     plan9)
3365         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3366                      -D_REENTRANT_SOURCE        \
3367                      -D_RESEARCH_SOURCE         \
3368                      -DFD_SETSIZE=96            \
3369                      -DHAVE_SOCK_OPTS
3370         add_compat strtod.o strtod=avpriv_strtod
3371         network_extralibs='-lbsd'
3372         exeobjs=compat/plan9/main.o
3373         disable ffserver
3374         ln_s='ln -s -f'
3375         cp_f='cp'
3376         ;;
3377     none)
3378         ;;
3379     *)
3380         die "Unknown OS '$target_os'."
3381         ;;
3382 esac
3383
3384 # determine libc flavour
3385
3386 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3387 if check_cpp_condition features.h "defined __UCLIBC__"; then
3388     libc_type=uclibc
3389     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3390 elif check_cpp_condition features.h "defined __GLIBC__"; then
3391     libc_type=glibc
3392     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3393 # MinGW headers can be installed on Cygwin, so check for newlib first.
3394 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3395     libc_type=newlib
3396     add_cppflags -U__STRICT_ANSI__
3397 elif check_header _mingw.h; then
3398     libc_type=mingw
3399     check_cpp_condition _mingw.h \
3400         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3401             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3402         die "ERROR: MinGW runtime version must be >= 3.15."
3403     add_cppflags -U__STRICT_ANSI__
3404     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3405             __MINGW64_VERSION_MAJOR < 3"; then
3406         add_compat msvcrt/snprintf.o
3407         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3408     fi
3409 elif check_func_headers stdlib.h _get_doserrno; then
3410     libc_type=msvcrt
3411     add_compat strtod.o strtod=avpriv_strtod
3412     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3413                                  _snprintf=avpriv_snprintf  \
3414                                  vsnprintf=avpriv_vsnprintf
3415 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3416     libc_type=klibc
3417 fi
3418
3419 test -n "$libc_type" && enable $libc_type
3420
3421 # hacks for compiler/libc/os combinations
3422
3423 if enabled_all tms470 glibc; then
3424     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3425     add_cppflags -D__USER_LABEL_PREFIX__=
3426     add_cppflags -D__builtin_memset=memset
3427     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3428     add_cflags   -pds=48    # incompatible redefinition of macro
3429 fi
3430
3431 if enabled_all ccc glibc; then
3432     add_ldflags -Wl,-z,now  # calls to libots crash without this
3433 fi
3434
3435 esc(){
3436     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3437 }
3438
3439 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3440
3441 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3442
3443 set_default $PATHS_LIST
3444 set_default nm
3445
3446 # we need to build at least one lib type
3447 if ! enabled_any static shared; then
3448     cat <<EOF
3449 At least one library type must be built.
3450 Specify --enable-static to build the static libraries or --enable-shared to
3451 build the shared libraries as well. To only build the shared libraries specify
3452 --disable-static in addition to --enable-shared.
3453 EOF
3454     exit 1;
3455 fi
3456
3457 die_license_disabled() {
3458     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3459 }
3460
3461 die_license_disabled_gpl() {
3462     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3463 }
3464
3465 die_license_disabled gpl libcdio
3466 die_license_disabled gpl libutvideo
3467 die_license_disabled gpl libx264
3468 die_license_disabled gpl libxavs
3469 die_license_disabled gpl libxvid
3470 die_license_disabled gpl x11grab
3471
3472 die_license_disabled nonfree libaacplus
3473 die_license_disabled nonfree libfaac
3474 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3475 enabled gpl && die_license_disabled_gpl nonfree openssl
3476
3477 die_license_disabled version3 libopencore_amrnb
3478 die_license_disabled version3 libopencore_amrwb
3479 die_license_disabled version3 libvo_aacenc
3480 die_license_disabled version3 libvo_amrwbenc
3481
3482 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3483
3484 disabled optimizations || check_cflags -fomit-frame-pointer
3485
3486 enable_pic() {
3487     enable pic
3488     add_cppflags -DPIC
3489     add_cflags   -fPIC
3490     add_asflags  -fPIC
3491 }
3492
3493 enabled pic && enable_pic
3494
3495 check_cc <<EOF || die "Symbol mangling check failed."
3496 int ff_extern;
3497 EOF
3498 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3499 extern_prefix=${sym%%ff_extern*}
3500
3501 check_cc <<EOF && enable_weak inline_asm
3502 void foo(void) { __asm__ volatile ("" ::); }
3503 EOF
3504
3505 _restrict=
3506 for restrict_keyword in restrict __restrict__ __restrict; do
3507     check_cc <<EOF && _restrict=$restrict_keyword && break
3508 void foo(char * $restrict_keyword p);
3509 EOF
3510 done
3511
3512 check_cc <<EOF && enable attribute_packed
3513 struct { int x; } __attribute__((packed)) x;
3514 EOF
3515
3516 check_cc <<EOF && enable attribute_may_alias
3517 union { int x; } __attribute__((may_alias)) x;
3518 EOF
3519
3520 check_cc <<EOF || die "endian test failed"
3521 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3522 EOF
3523 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3524
3525 if enabled alpha; then
3526
3527     check_cflags -mieee
3528
3529 elif enabled arm; then
3530
3531     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3532 float func(float a, float b){ return a+b; }
3533 EOF
3534
3535     enabled thumb && check_cflags -mthumb || check_cflags -marm
3536     nogas=die
3537
3538     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3539         enable vfp_args
3540     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3541         case "${cross_prefix:-$cc}" in
3542             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3543             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3544 __asm__ (".eabi_attribute 28, 1");
3545 int main(void) { return 0; }
3546 EOF
3547         esac
3548         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3549     fi
3550
3551     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3552     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3553     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3554     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3555     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3556     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3557
3558     [ $target_os = linux ] ||
3559         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3560             $ARCH_EXT_LIST_ARM
3561
3562     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3563     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3564
3565     enabled_all armv6t2 shared !pic && enable_pic
3566
3567 elif enabled mips; then
3568
3569     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3570     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3571      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3572     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3573      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3574     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3575      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3576     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3577      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3578
3579 elif enabled parisc; then
3580
3581     if enabled gcc; then
3582         case $($cc -dumpversion) in
3583             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3584         esac
3585     fi
3586
3587 elif enabled ppc; then
3588
3589     enable local_aligned_8 local_aligned_16
3590
3591     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3592     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3593     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3594     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3595
3596     # AltiVec flags: The FSF version of GCC differs from the Apple version
3597     if enabled altivec; then
3598         nogas=warn
3599         check_cflags -maltivec -mabi=altivec &&
3600         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3601         check_cflags -faltivec
3602
3603         # check if our compiler supports Motorola AltiVec C API
3604         check_cc <<EOF || disable altivec
3605 $inc_altivec_h
3606 int main(void) {
3607     vector signed int v1 = (vector signed int) { 0 };
3608     vector signed int v2 = (vector signed int) { 1 };
3609     v1 = vec_add(v1, v2);
3610     return 0;
3611 }
3612 EOF
3613
3614         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3615     fi
3616
3617 elif enabled sparc; then
3618
3619     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3620
3621 elif enabled x86; then
3622
3623     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3624
3625     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3626
3627     enable local_aligned_8 local_aligned_16
3628
3629     # check whether EBP is available on x86
3630     # As 'i' is stored on the stack, this program will crash
3631     # if the base pointer is used to access it because the
3632     # base pointer is cleared in the inline assembly code.
3633     check_exec_crash <<EOF && enable ebp_available
3634 volatile int i=0;
3635 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3636 return i;
3637 EOF
3638
3639     # check whether EBX is available on x86
3640     check_inline_asm ebx_available '""::"b"(0)' &&
3641         check_inline_asm ebx_available '"":::"%ebx"'
3642
3643     # check whether xmm clobbers are supported
3644     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3645
3646     # check whether binutils is new enough to compile SSSE3/MMXEXT
3647     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3648     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3649
3650     if ! disabled_any asm mmx yasm; then
3651         if check_cmd $yasmexe --version; then
3652             enabled x86_64 && yasm_extra="-m amd64"
3653             yasm_debug="-g dwarf2"
3654         elif check_cmd nasm -v; then
3655             yasmexe=nasm
3656             yasm_debug="-g -F dwarf"
3657             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3658         fi
3659
3660         YASMFLAGS="-f $objformat $yasm_extra"
3661         enabled pic               && append YASMFLAGS "-DPIC"
3662         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3663         case "$objformat" in
3664             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3665         esac
3666
3667         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3668             die "yasm not found, use --disable-yasm for a crippled build"
3669         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3670         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3671         check_yasm "CPU amdnop" && enable cpunop
3672     fi
3673
3674     case "$cpu" in
3675         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3676             disable fast_clz
3677         ;;
3678     esac
3679
3680 fi
3681
3682 if enabled asm; then
3683     as=${gas:=$as}
3684     check_as <<EOF && enable gnu_as || \
3685         $nogas "GNU assembler not found, install gas-preprocessor"
3686 .macro m n
3687 \n: .int 0
3688 .endm
3689 m x
3690 EOF
3691 fi
3692
3693 check_ldflags -Wl,--as-needed
3694
3695 if check_func dlopen; then
3696     ldl=
3697 elif check_func dlopen -ldl; then
3698     ldl=-ldl
3699 fi
3700
3701 if ! disabled network; then
3702     check_type "sys/types.h sys/socket.h" socklen_t
3703     check_type netdb.h "struct addrinfo"
3704     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3705     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3706     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3707     check_type netinet/in.h "struct sockaddr_in6"
3708     check_type poll.h "struct pollfd"
3709     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3710     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3711     check_type netinet/sctp.h "struct sctp_event_subscribe"
3712     check_func getaddrinfo $network_extralibs
3713     check_func getservbyport $network_extralibs
3714     # Prefer arpa/inet.h over winsock2
3715     if check_header arpa/inet.h ; then
3716         check_func closesocket
3717     elif check_header winsock2.h ; then
3718         check_func_headers winsock2.h closesocket -lws2 &&
3719             network_extralibs="-lws2" ||
3720         { check_func_headers winsock2.h closesocket -lws2_32 &&
3721             network_extralibs="-lws2_32"; }
3722         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3723         check_type ws2tcpip.h socklen_t
3724         check_type ws2tcpip.h "struct addrinfo"
3725         check_type ws2tcpip.h "struct group_source_req"
3726         check_type ws2tcpip.h "struct ip_mreq_source"
3727         check_type ws2tcpip.h "struct ipv6_mreq"
3728         check_type winsock2.h "struct pollfd"
3729         check_type ws2tcpip.h "struct sockaddr_in6"
3730         check_type ws2tcpip.h "struct sockaddr_storage"
3731         check_struct winsock2.h "struct sockaddr" sa_len
3732     else
3733         disable network
3734     fi
3735 fi
3736
3737 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3738 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3739
3740 check_func  access
3741 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3742 check_func  fcntl
3743 check_func  fork
3744 check_func  gethrtime
3745 check_func  getopt
3746 check_func  getrusage
3747 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3748 check_func  gettimeofday
3749 check_func  iconv || check_lib2 iconv.h iconv -liconv
3750 check_func  inet_aton $network_extralibs
3751 check_func  isatty
3752 check_func  localtime_r
3753 check_func  ${malloc_prefix}memalign            && enable memalign
3754 check_func  mkstemp
3755 check_func  mmap
3756 check_func  mprotect
3757 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3758 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3759 check_func  setrlimit
3760 check_func  strerror_r
3761 check_func  sched_getaffinity
3762 check_func  sysconf
3763 check_func  sysctl
3764 check_func  usleep
3765 check_func_headers conio.h kbhit
3766 check_func_headers windows.h PeekNamedPipe
3767 check_func_headers io.h setmode
3768 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3769 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3770 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3771 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3772 check_func_headers windows.h GetProcessAffinityMask
3773 check_func_headers windows.h GetProcessTimes
3774 check_func_headers windows.h GetSystemTimeAsFileTime
3775 check_func_headers windows.h MapViewOfFile
3776 check_func_headers windows.h SetConsoleTextAttribute
3777 check_func_headers windows.h Sleep
3778 check_func_headers windows.h VirtualAlloc
3779 check_func_headers glob.h glob
3780
3781 check_header direct.h
3782 check_header dlfcn.h
3783 check_header dxva.h
3784 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3785 check_header io.h
3786 check_header libcrystalhd/libcrystalhd_if.h
3787 check_header malloc.h
3788 check_header poll.h
3789 check_header sys/mman.h
3790 check_header sys/param.h
3791 check_header sys/resource.h
3792 check_header sys/select.h
3793 check_header sys/time.h
3794 check_header termios.h
3795 check_header unistd.h
3796 check_header vdpau/vdpau.h
3797 check_header vdpau/vdpau_x11.h
3798 check_header VideoDecodeAcceleration/VDADecoder.h
3799 check_header windows.h
3800 check_header X11/extensions/XvMClib.h
3801 check_header asm/types.h
3802
3803 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3804 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3805
3806 if ! disabled w32threads && ! enabled pthreads; then
3807     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3808 fi
3809
3810 # check for some common methods of building with pthread support
3811 # do this before the optional library checks as some of them require pthreads
3812 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3813     enable pthreads
3814     if check_func pthread_create; then
3815         :
3816     elif check_func pthread_create -pthread; then
3817         add_cflags -pthread
3818         add_extralibs -pthread
3819     elif check_func pthread_create -pthreads; then
3820         add_cflags -pthreads
3821         add_extralibs -pthreads
3822     elif check_func pthread_create -lpthreadGC2; then
3823         add_extralibs -lpthreadGC2
3824     elif ! check_lib pthread.h pthread_create -lpthread; then
3825         disable pthreads
3826     fi
3827 fi
3828
3829 for thread in $THREADS_LIST; do
3830     if enabled $thread; then
3831         test -n "$thread_type" &&
3832             die "ERROR: Only one thread type must be selected." ||
3833             thread_type="$thread"
3834     fi
3835 done
3836
3837 if enabled pthreads; then
3838   check_func pthread_cancel
3839 fi
3840
3841 check_lib math.h sin -lm && LIBM="-lm"
3842 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3843 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3844
3845 atan2f_args=2
3846 ldexpf_args=2
3847 powf_args=2
3848
3849 for func in $MATH_FUNCS; do
3850     eval check_mathfunc $func \${${func}_args:-1}
3851 done
3852
3853 # these are off by default, so fail if requested and not available
3854 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3855 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3856 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3857 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3858 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3859 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3860 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3861 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3862 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3863                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3864                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3865 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3866 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3867 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3868 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"
3869 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3870 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3871 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3872                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3873                         done || die "ERROR: libgsm not found"; }
3874 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3875 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3876 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3877 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3878 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3879 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3880 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3881 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3882                          check_lib openjpeg.h opj_version -lopenjpeg ||
3883                          die "ERROR: libopenjpeg not found"; }
3884 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3885 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3886 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3887 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3888 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3889 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3890 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3891     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3892     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3893 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3894 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3895                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3896                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3897 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3898 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3899 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3900 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3901 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3902 enabled libvpx     && {
3903     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3904                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3905     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 ||
3906                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3907     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3908     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3909 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3910                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3911                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3912 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3913 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3914 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3915                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3916                         die "ERROR: openal not found"; } &&
3917                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3918                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3919 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3920                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3921                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3922                         die "ERROR: openssl not found"; }
3923
3924 if enabled gnutls; then
3925     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3926     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3927 fi
3928
3929 # libdc1394 check
3930 if enabled libdc1394; then
3931     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3932         enable libdc1394_2; } ||
3933     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3934         enable libdc1394_1; } ||
3935     die "ERROR: No version of libdc1394 found "
3936 fi
3937
3938 SDL_CONFIG="${cross_prefix}sdl-config"
3939 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3940     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3941     enable sdl &&
3942     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3943 else
3944   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3945     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3946     sdl_libs=$("${SDL_CONFIG}" --libs)
3947     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3948     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3949     enable sdl &&
3950     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3951   fi
3952 fi
3953 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3954
3955 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3956 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3957 perl --version > /dev/null 2>&1 && enable perl || disable perl
3958 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3959 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3960
3961 check_header linux/fb.h
3962 check_header linux/videodev.h
3963 check_header linux/videodev2.h
3964 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3965
3966 check_header sys/videoio.h
3967
3968 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3969 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3970 # w32api 3.12 had it defined wrong
3971 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3972
3973 check_type "dshow.h" IBaseFilter
3974
3975 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3976 { check_header dev/bktr/ioctl_meteor.h &&
3977   check_header dev/bktr/ioctl_bt848.h; } ||
3978 { check_header machine/ioctl_meteor.h &&
3979   check_header machine/ioctl_bt848.h; } ||
3980 { check_header dev/video/meteor/ioctl_meteor.h &&
3981   check_header dev/video/bktr/ioctl_bt848.h; } ||
3982 check_header dev/ic/bt8xx.h
3983
3984 check_header sndio.h
3985 if check_struct sys/soundcard.h audio_buf_info bytes; then
3986     enable_safe sys/soundcard.h
3987 else
3988     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3989     #include <sys/soundcard.h>
3990     audio_buf_info abc;
3991 EOF
3992 fi
3993 check_header soundcard.h
3994
3995 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3996
3997 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3998     check_func jack_port_get_latency_range -ljack
3999
4000 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4001
4002 if enabled libcdio; then
4003     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
4004 fi
4005
4006 enabled x11grab                                           &&
4007 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4008 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4009 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes