Make strtok_r a dependency of abuffer / fix typo.
[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 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-avconv         disable avconv build
85   --disable-ffplay         disable ffplay build
86   --disable-ffprobe        disable ffprobe build
87   --disable-ffserver       disable ffserver build
88   --disable-avdevice       disable libavdevice build
89   --disable-avcodec        disable libavcodec build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --disable-postproc       disable libpostproc build
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --enable-w32threads      use Win32 threads [no]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --enable-gray            enable full grayscale support (slower color)
99   --disable-swscale-alpha  disable alpha channel support in swscale
100   --disable-fastdiv        disable table-based division
101   --enable-small           optimize for size instead of speed
102   --disable-aandct         disable AAN DCT code
103   --disable-dct            disable DCT code
104   --disable-fft            disable FFT code
105   --disable-golomb         disable Golomb code
106   --disable-huffman        disable Huffman code
107   --disable-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --enable-vaapi           enable VAAPI code [autodetect]
111   --enable-vdpau           enable VDPAU code [autodetect]
112   --disable-dxva2          disable DXVA2 code
113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
116   --disable-everything     disable all components listed below
117   --disable-encoder=NAME   disable encoder NAME
118   --enable-encoder=NAME    enable encoder NAME
119   --disable-encoders       disable all encoders
120   --disable-decoder=NAME   disable decoder NAME
121   --enable-decoder=NAME    enable decoder NAME
122   --disable-decoders       disable all decoders
123   --disable-hwaccel=NAME   disable hwaccel NAME
124   --enable-hwaccel=NAME    enable hwaccel NAME
125   --disable-hwaccels       disable all hwaccels
126   --disable-muxer=NAME     disable muxer NAME
127   --enable-muxer=NAME      enable muxer NAME
128   --disable-muxers         disable all muxers
129   --disable-demuxer=NAME   disable demuxer NAME
130   --enable-demuxer=NAME    enable demuxer NAME
131   --disable-demuxers       disable all demuxers
132   --enable-parser=NAME     enable parser NAME
133   --disable-parser=NAME    disable parser NAME
134   --disable-parsers        disable all parsers
135   --enable-bsf=NAME        enable bitstream filter NAME
136   --disable-bsf=NAME       disable bitstream filter NAME
137   --disable-bsfs           disable all bitstream filters
138   --enable-protocol=NAME   enable protocol NAME
139   --disable-protocol=NAME  disable protocol NAME
140   --disable-protocols      disable all protocols
141   --disable-indev=NAME     disable input device NAME
142   --disable-outdev=NAME    disable output device NAME
143   --disable-indevs         disable input devices
144   --disable-outdevs        disable output devices
145   --disable-devices        disable all devices
146   --enable-filter=NAME     enable filter NAME
147   --disable-filter=NAME    disable filter NAME
148   --disable-filters        disable all filters
149   --list-decoders          show all available decoders
150   --list-encoders          show all available encoders
151   --list-hwaccels          show all available hardware accelerators
152   --list-muxers            show all available muxers
153   --list-demuxers          show all available demuxers
154   --list-parsers           show all available parsers
155   --list-protocols         show all available protocols
156   --list-bsfs              show all available bitstream filters
157   --list-indevs            show all available input devices
158   --list-outdevs           show all available output devices
159   --list-filters           show all available filters
160
161 External library support:
162   --enable-avisynth        enable reading of AVISynth script files [no]
163   --enable-bzlib           enable bzlib [autodetect]
164   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
165   --enable-frei0r          enable frei0r video filtering
166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
168   --enable-libopencv       enable video filtering via libopencv [no]
169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
170                            and libraw1394 [no]
171   --enable-libdirac        enable Dirac support via libdirac [no]
172   --enable-libfaac         enable FAAC support via libfaac [no]
173   --enable-libfreetype     enable libfreetype [no]
174   --enable-libgsm          enable GSM support via libgsm [no]
175   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
176   --enable-libnut          enable NUT (de)muxing via libnut,
177                            native (de)muxer exists [no]
178   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
179   --enable-librtmp         enable RTMP[E] support via librtmp [no]
180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
181   --enable-libspeex        enable Speex decoding via libspeex [no]
182   --enable-libtheora       enable Theora encoding via libtheora [no]
183   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
184   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
185   --enable-libvorbis       enable Vorbis encoding via libvorbis,
186                            native implementation exists [no]
187   --enable-libvpx          enable VP8 support via libvpx [no]
188   --enable-libx264         enable H.264 encoding via x264 [no]
189   --enable-libxavs         enable AVS encoding via xavs [no]
190   --enable-libxvid         enable Xvid encoding via xvidcore,
191                            native MPEG-4/Xvid encoder exists [no]
192   --enable-openal          enable OpenAL 1.1 capture support [no]
193   --enable-mlib            enable Sun medialib [no]
194   --enable-zlib            enable zlib [autodetect]
195
196 Advanced options (experts only):
197   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
198   --enable-cross-compile   assume a cross-compiler is used
199   --sysroot=PATH           root of cross-build tree
200   --sysinclude=PATH        location of cross-build system headers
201   --target-os=OS           compiler targets OS [$target_os]
202   --target-exec=CMD        command to run executables on target
203   --target-path=DIR        path to view of build directory on target
204   --nm=NM                  use nm tool
205   --ar=AR                  use archive tool AR [$ar_default]
206   --as=AS                  use assembler AS [$as_default]
207   --cc=CC                  use C compiler CC [$cc_default]
208   --ld=LD                  use linker LD
209   --host-cc=HOSTCC         use host C compiler HOSTCC
210   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
211   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
212   --host-libs=HLIBS        use libs HLIBS when linking for host
213   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
214   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
215   --extra-libs=ELIBS       add ELIBS [$ELIBS]
216   --extra-version=STRING   version string suffix []
217   --build-suffix=SUFFIX    library name suffix []
218   --arch=ARCH              select architecture [$arch]
219   --cpu=CPU                select the minimum required CPU (affects
220                            instruction selection, may crash on older CPUs)
221   --disable-asm            disable all assembler optimizations
222   --disable-altivec        disable AltiVec optimizations
223   --disable-amd3dnow       disable 3DNow! optimizations
224   --disable-amd3dnowext    disable 3DNow! extended optimizations
225   --disable-mmx            disable MMX optimizations
226   --disable-mmx2           disable MMX2 optimizations
227   --disable-sse            disable SSE optimizations
228   --disable-ssse3          disable SSSE3 optimizations
229   --disable-avx            disable AVX optimizations
230   --disable-armv5te        disable armv5te optimizations
231   --disable-armv6          disable armv6 optimizations
232   --disable-armv6t2        disable armv6t2 optimizations
233   --disable-armvfp         disable ARM VFP optimizations
234   --disable-iwmmxt         disable iwmmxt optimizations
235   --disable-mmi            disable MMI optimizations
236   --disable-neon           disable neon optimizations
237   --disable-vis            disable VIS optimizations
238   --disable-yasm           disable use of yasm assembler
239   --enable-pic             build position-independent code
240   --malloc-prefix=PFX      prefix malloc and related names with PFX
241   --enable-sram            allow use of on-chip SRAM
242   --disable-symver         disable symbol versioning
243   --optflags               override optimization-related compiler flags
244
245 Developer options (useful when working on FFmpeg itself):
246   --disable-debug          disable debugging symbols
247   --enable-debug=LEVEL     set the debug level [$debuglevel]
248   --disable-optimizations  disable compiler optimizations
249   --enable-extra-warnings  enable more compiler warnings
250   --disable-stripping      disable stripping of executables and shared libraries
251   --samples=PATH           location of test samples for FATE, if not set use
252                            \$FATE_SAMPLES at make invocation time.
253
254 NOTE: Object files are built at the place where configure is launched.
255 EOF
256   exit 0
257 }
258
259 quotes='""'
260
261 log(){
262     echo "$@" >> $logfile
263 }
264
265 log_file(){
266     log BEGIN $1
267     pr -n -t $1 >> $logfile
268     log END $1
269 }
270
271 echolog(){
272     log "$@"
273     echo "$@"
274 }
275
276 warn(){
277     log "WARNING: $*"
278     WARNINGS="${WARNINGS}WARNING: $*\n"
279 }
280
281 die(){
282     echolog "$@"
283     cat <<EOF
284
285 If you think configure made a mistake, make sure you are using the latest
286 version from Git.  If the latest version fails, report the problem to the
287 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
288 EOF
289     if disabled logging; then
290         cat <<EOF
291 Rerun configure with logging enabled (do not use --disable-logging), and
292 include the log this produces with your report.
293 EOF
294     else
295 cat <<EOF
296 Include the log file "$logfile" produced by configure as this will help
297 solving the problem.
298 EOF
299     fi
300     exit 1
301 }
302
303 # Avoid locale weirdness, besides we really just want to translate ASCII.
304 toupper(){
305     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
306 }
307
308 tolower(){
309     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
310 }
311
312 c_escape(){
313     echo "$*" | sed 's/["\\]/\\\0/g'
314 }
315
316 sh_quote(){
317     v=$(echo "$1" | sed "s/'/'\\\\''/g")
318     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
319     echo "$v"
320 }
321
322 cleanws(){
323     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
324 }
325
326 filter(){
327     pat=$1
328     shift
329     for v; do
330         eval "case $v in $pat) echo $v ;; esac"
331     done
332 }
333
334 filter_out(){
335     pat=$1
336     shift
337     for v; do
338         eval "case $v in $pat) ;; *) echo $v ;; esac"
339     done
340 }
341
342 map(){
343     m=$1
344     shift
345     for v; do eval $m; done
346 }
347
348 set_all(){
349     value=$1
350     shift
351     for var in $*; do
352         eval $var=$value
353     done
354 }
355
356 set_weak(){
357     value=$1
358     shift
359     for var; do
360         eval : \${$var:=$value}
361     done
362 }
363
364 set_safe(){
365     var=$1
366     shift
367     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
368 }
369
370 get_safe(){
371     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
372 }
373
374 pushvar(){
375     for var in $*; do
376         eval level=\${${var}_level:=0}
377         eval ${var}_${level}="\$$var"
378         eval ${var}_level=$(($level+1))
379     done
380 }
381
382 popvar(){
383     for var in $*; do
384         eval level=\${${var}_level:-0}
385         test $level = 0 && continue
386         eval level=$(($level-1))
387         eval $var="\${${var}_${level}}"
388         eval ${var}_level=$level
389         eval unset ${var}_${level}
390     done
391 }
392
393 enable(){
394     set_all yes $*
395 }
396
397 disable(){
398     set_all no $*
399 }
400
401 enable_weak(){
402     set_weak yes $*
403 }
404
405 disable_weak(){
406     set_weak no $*
407 }
408
409 enable_safe(){
410     for var; do
411         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
412     done
413 }
414
415 disable_safe(){
416     for var; do
417         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
418     done
419 }
420
421 do_enable_deep(){
422     for var; do
423         enabled $var && continue
424         eval sel="\$${var}_select"
425         eval sgs="\$${var}_suggest"
426         pushvar var sgs
427         enable_deep $sel
428         popvar sgs
429         enable_deep_weak $sgs
430         popvar var
431     done
432 }
433
434 enable_deep(){
435     do_enable_deep $*
436     enable $*
437 }
438
439 enable_deep_weak(){
440     do_enable_deep $*
441     enable_weak $*
442 }
443
444 enabled(){
445     test "${1#!}" = "$1" && op== || op=!=
446     eval test "x\$${1#!}" $op "xyes"
447 }
448
449 disabled(){
450     test "${1#!}" = "$1" && op== || op=!=
451     eval test "x\$${1#!}" $op "xno"
452 }
453
454 enabled_all(){
455     for opt; do
456         enabled $opt || return 1
457     done
458 }
459
460 disabled_all(){
461     for opt; do
462         disabled $opt || return 1
463     done
464 }
465
466 enabled_any(){
467     for opt; do
468         enabled $opt && return 0
469     done
470 }
471
472 disabled_any(){
473     for opt; do
474         disabled $opt && return 0
475     done
476     return 1
477 }
478
479 set_default(){
480     for opt; do
481         eval : \${$opt:=\$${opt}_default}
482     done
483 }
484
485 is_in(){
486     value=$1
487     shift
488     for var in $*; do
489         [ $var = $value ] && return 0
490     done
491     return 1
492 }
493
494 check_deps(){
495     for cfg; do
496         cfg="${cfg#!}"
497         enabled ${cfg}_checking && die "Circular dependency for $cfg."
498         disabled ${cfg}_checking && continue
499         enable ${cfg}_checking
500
501         eval dep_all="\$${cfg}_deps"
502         eval dep_any="\$${cfg}_deps_any"
503         eval dep_sel="\$${cfg}_select"
504         eval dep_sgs="\$${cfg}_suggest"
505         eval dep_ifa="\$${cfg}_if"
506         eval dep_ifn="\$${cfg}_if_any"
507
508         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
509         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
510         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
511
512         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
513         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
514         enabled_all  $dep_all || disable $cfg
515         enabled_any  $dep_any || disable $cfg
516         disabled_any $dep_sel && disable $cfg
517
518         if enabled $cfg; then
519             eval dep_extralibs="\$${cfg}_extralibs"
520             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
521             enable_deep $dep_sel
522             enable_deep_weak $dep_sgs
523         fi
524
525         disable ${cfg}_checking
526     done
527 }
528
529 print_config_h(){
530     enabled $1 && v=1 || v=0
531     echo "#define $2 $v"
532 }
533
534 print_config_mak(){
535     enabled $1 && v= || v=!
536     echo "$v$2=yes"
537 }
538
539 print_config_asm(){
540     enabled $1 && echo "%define $2"
541 }
542
543 print_config(){
544     pfx=$1
545     files=$2
546     shift 2
547     for cfg; do
548         ucname="$(toupper $cfg)"
549         for f in $files; do
550             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
551         done
552     done
553 }
554
555 print_enabled(){
556     test "$1" = -n && end=" " && shift || end="\n"
557     suf=$1
558     shift
559     for v; do
560         enabled $v && printf "%s$end" ${v%$suf};
561     done
562 }
563
564 append(){
565     var=$1
566     shift
567     eval "$var=\"\$$var $*\""
568 }
569
570 prepend(){
571     var=$1
572     shift
573     eval "$var=\"$* \$$var\""
574 }
575
576 add_cppflags(){
577     append CPPFLAGS $($filter_cppflags "$@")
578 }
579
580 add_cflags(){
581     append CFLAGS $($filter_cflags "$@")
582 }
583
584 add_asflags(){
585     append ASFLAGS $($filter_asflags "$@")
586 }
587
588 add_ldflags(){
589     append LDFLAGS "$@"
590 }
591
592 add_extralibs(){
593     prepend extralibs "$@"
594 }
595
596 check_cmd(){
597     log "$@"
598     "$@" >> $logfile 2>&1
599 }
600
601 check_cc(){
602     log check_cc "$@"
603     cat > $TMPC
604     log_file $TMPC
605     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
606 }
607
608 check_cpp(){
609     log check_cpp "$@"
610     cat > $TMPC
611     log_file $TMPC
612     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
613 }
614
615 check_as(){
616     log check_as "$@"
617     cat > $TMPC
618     log_file $TMPC
619     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
620 }
621
622 check_asm(){
623     log check_asm "$@"
624     name="$1"
625     code="$2"
626     shift 2
627     disable $name
628     check_as "$@" <<EOF && enable $name
629 void foo(void){ __asm__ volatile($code); }
630 EOF
631 }
632
633 check_yasm(){
634     log check_yasm "$@"
635     echo "$1" > $TMPS
636     log_file $TMPS
637     shift 1
638     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
639 }
640
641 check_ld(){
642     log check_ld "$@"
643     flags=''
644     libs=''
645     for f; do
646         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
647     done
648     check_cc $($filter_cflags $flags) || return
649     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
650 }
651
652 check_cppflags(){
653     log check_cppflags "$@"
654     set -- $($filter_cppflags "$@")
655     check_cc "$@" <<EOF && append CPPFLAGS "$@"
656 int x;
657 EOF
658 }
659
660 check_cflags(){
661     log check_cflags "$@"
662     set -- $($filter_cflags "$@")
663     check_cc "$@" <<EOF && append CFLAGS "$@"
664 int x;
665 EOF
666 }
667
668 test_ldflags(){
669     log test_ldflags "$@"
670     check_ld "$@" <<EOF
671 int main(void){ return 0; }
672 EOF
673 }
674
675 check_ldflags(){
676     log check_ldflags "$@"
677     test_ldflags "$@" && add_ldflags "$@"
678 }
679
680 check_header(){
681     log check_header "$@"
682     header=$1
683     shift
684     disable_safe $header
685     check_cpp "$@" <<EOF && enable_safe $header
686 #include <$header>
687 int x;
688 EOF
689 }
690
691 check_func(){
692     log check_func "$@"
693     func=$1
694     shift
695     disable $func
696     check_ld "$@" <<EOF && enable $func
697 extern int $func();
698 int main(void){ $func(); }
699 EOF
700 }
701
702 check_mathfunc(){
703     log check_mathfunc "$@"
704     func=$1
705     shift
706     disable $func
707     check_ld "$@" <<EOF && enable $func
708 #include <math.h>
709 float foo(float f) { return $func(f); }
710 int main(void){ return 0; }
711 EOF
712 }
713
714 check_func_headers(){
715     log check_func_headers "$@"
716     headers=$1
717     funcs=$2
718     shift 2
719     {
720         for hdr in $headers; do
721             echo "#include <$hdr>"
722         done
723         for func in $funcs; do
724             echo "long check_$func(void) { return (long) $func; }"
725         done
726         echo "int main(void) { return 0; }"
727     } | check_ld "$@" && enable $funcs && enable_safe $headers
728 }
729
730 check_cpp_condition(){
731     log check_cpp_condition "$@"
732     header=$1
733     condition=$2
734     shift 2
735     check_cpp $($filter_cppflags "$@") <<EOF
736 #include <$header>
737 #if !($condition)
738 #error "unsatisfied condition: $condition"
739 #endif
740 EOF
741 }
742
743 check_lib(){
744     log check_lib "$@"
745     header="$1"
746     func="$2"
747     shift 2
748     check_header $header && check_func $func "$@" && add_extralibs "$@"
749 }
750
751 check_lib2(){
752     log check_lib2 "$@"
753     headers="$1"
754     funcs="$2"
755     shift 2
756     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
757 }
758
759 check_pkg_config(){
760     log check_pkg_config "$@"
761     pkg="$1"
762     headers="$2"
763     funcs="$3"
764     shift 3
765     $pkg_config --exists $pkg 2>/dev/null || return
766     pkg_cflags=$($pkg_config --cflags $pkg)
767     pkg_libs=$($pkg_config --libs $pkg)
768     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
769         set_safe ${pkg}_cflags $pkg_cflags   &&
770         set_safe ${pkg}_libs   $pkg_libs
771 }
772
773 check_exec(){
774     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
775 }
776
777 check_exec_crash(){
778     code=$(cat)
779
780     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
781     # are safe but may not be available everywhere.  Thus we use
782     # raise(SIGTERM) instead.  The check is run in a subshell so we
783     # can redirect the "Terminated" message from the shell.  SIGBUS
784     # is not defined by standard C so it is used conditionally.
785
786     (check_exec "$@") >> $logfile 2>&1 <<EOF
787 #include <signal.h>
788 static void sighandler(int sig){
789     raise(SIGTERM);
790 }
791 int main(void){
792     signal(SIGILL, sighandler);
793     signal(SIGFPE, sighandler);
794     signal(SIGSEGV, sighandler);
795 #ifdef SIGBUS
796     signal(SIGBUS, sighandler);
797 #endif
798     { $code }
799 }
800 EOF
801 }
802
803 check_type(){
804     log check_type "$@"
805     headers=$1
806     type=$2
807     shift 2
808     disable_safe "$type"
809     incs=""
810     for hdr in $headers; do
811         incs="$incs
812 #include <$hdr>"
813     done
814     check_cc "$@" <<EOF && enable_safe "$type"
815 $incs
816 $type v;
817 EOF
818 }
819
820 check_struct(){
821     log check_type "$@"
822     headers=$1
823     struct=$2
824     member=$3
825     shift 3
826     disable_safe "${struct}_${member}"
827     incs=""
828     for hdr in $headers; do
829         incs="$incs
830 #include <$hdr>"
831     done
832     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
833 $incs
834 const void *p = &(($struct *)0)->$member;
835 EOF
836 }
837
838 require(){
839     name="$1"
840     header="$2"
841     func="$3"
842     shift 3
843     check_lib $header $func "$@" || die "ERROR: $name not found"
844 }
845
846 require2(){
847     name="$1"
848     headers="$2"
849     func="$3"
850     shift 3
851     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
852 }
853
854 require_pkg_config(){
855     pkg="$1"
856     check_pkg_config "$@" || die "ERROR: $pkg not found"
857     add_cflags    $(get_safe ${pkg}_cflags)
858     add_extralibs $(get_safe ${pkg}_libs)
859 }
860
861 check_host_cc(){
862     log check_host_cc "$@"
863     cat > $TMPC
864     log_file $TMPC
865     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
866 }
867
868 check_host_cflags(){
869     log check_host_cflags "$@"
870     check_host_cc "$@" <<EOF && append host_cflags "$@"
871 int x;
872 EOF
873 }
874
875 apply(){
876     file=$1
877     shift
878     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
879 }
880
881 cp_if_changed(){
882     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
883     mkdir -p "$(dirname $2)"
884     cp -f "$1" "$2"
885 }
886
887 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
888 # system-dependent things.
889
890 COMPONENT_LIST="
891     bsfs
892     decoders
893     demuxers
894     encoders
895     filters
896     hwaccels
897     indevs
898     muxers
899     outdevs
900     parsers
901     protocols
902 "
903
904 CONFIG_LIST="
905     $COMPONENT_LIST
906     aandct
907     ac3dsp
908     avcodec
909     avdevice
910     avfilter
911     avformat
912     avisynth
913     bzlib
914     crystalhd
915     dct
916     doc
917     dwt
918     dxva2
919     fastdiv
920     ffmpeg
921     avconv
922     ffplay
923     ffprobe
924     ffserver
925     fft
926     frei0r
927     golomb
928     gpl
929     gray
930     h264dsp
931     h264pred
932     hardcoded_tables
933     huffman
934     libcelt
935     libdc1394
936     libdirac
937     libfaac
938     libfreetype
939     libgsm
940     libmp3lame
941     libnut
942     libopencore_amrnb
943     libopencore_amrwb
944     libopencv
945     libopenjpeg
946     librtmp
947     libschroedinger
948     libspeex
949     libtheora
950     libvo_aacenc
951     libvo_amrwbenc
952     libvorbis
953     libvpx
954     libx264
955     libxavs
956     libxvid
957     lpc
958     lsp
959     mdct
960     memalign_hack
961     mlib
962     mpegaudiodsp
963     network
964     nonfree
965     openal
966     pic
967     postproc
968     rdft
969     rtpdec
970     runtime_cpudetect
971     shared
972     sinewin
973     small
974     sram
975     static
976     swscale
977     swscale_alpha
978     thumb
979     vaapi
980     vdpau
981     version3
982     x11grab
983     zlib
984 "
985
986 THREADS_LIST='
987     pthreads
988     w32threads
989 '
990
991 ARCH_LIST='
992     alpha
993     arm
994     avr32
995     avr32_ap
996     avr32_uc
997     bfin
998     ia64
999     m68k
1000     mips
1001     mips64
1002     parisc
1003     ppc
1004     ppc64
1005     s390
1006     sh4
1007     sparc
1008     sparc64
1009     tomi
1010     x86
1011     x86_32
1012     x86_64
1013 '
1014
1015 ARCH_EXT_LIST='
1016     altivec
1017     amd3dnow
1018     amd3dnowext
1019     armv5te
1020     armv6
1021     armv6t2
1022     armvfp
1023     avx
1024     iwmmxt
1025     mmi
1026     mmx
1027     mmx2
1028     neon
1029     ppc4xx
1030     sse
1031     ssse3
1032     vfpv3
1033     vis
1034 '
1035
1036 HAVE_LIST_PUB='
1037     bigendian
1038     fast_unaligned
1039 '
1040
1041 HAVE_LIST="
1042     $ARCH_EXT_LIST
1043     $HAVE_LIST_PUB
1044     $THREADS_LIST
1045     aligned_stack
1046     alsa_asoundlib_h
1047     altivec_h
1048     arpa_inet_h
1049     attribute_may_alias
1050     attribute_packed
1051     bswap
1052     closesocket
1053     cmov
1054     dcbzl
1055     dev_bktr_ioctl_bt848_h
1056     dev_bktr_ioctl_meteor_h
1057     dev_ic_bt8xx_h
1058     dev_video_meteor_ioctl_meteor_h
1059     dev_video_bktr_ioctl_bt848_h
1060     dlfcn_h
1061     dlopen
1062     dos_paths
1063     ebp_available
1064     ebx_available
1065     exp2
1066     exp2f
1067     fast_64bit
1068     fast_clz
1069     fast_cmov
1070     fcntl
1071     fork
1072     getaddrinfo
1073     gethrtime
1074     GetProcessMemoryInfo
1075     GetProcessTimes
1076     getrusage
1077     gnu_as
1078     struct_rusage_ru_maxrss
1079     ibm_asm
1080     inet_aton
1081     inline_asm
1082     isatty
1083     kbhit
1084     ldbrx
1085     llrint
1086     llrintf
1087     local_aligned_16
1088     local_aligned_8
1089     localtime_r
1090     log2
1091     log2f
1092     loongson
1093     lrint
1094     lrintf
1095     lzo1x_999_compress
1096     machine_ioctl_bt848_h
1097     machine_ioctl_meteor_h
1098     malloc_h
1099     MapViewOfFile
1100     memalign
1101     mkstemp
1102     mmap
1103     posix_memalign
1104     round
1105     roundf
1106     sdl
1107     sdl_video_size
1108     setmode
1109     sndio_h
1110     socklen_t
1111     soundcard_h
1112     poll_h
1113     setrlimit
1114     strerror_r
1115     strptime
1116     strtok_r
1117     struct_addrinfo
1118     struct_ipv6_mreq
1119     struct_sockaddr_in6
1120     struct_sockaddr_sa_len
1121     struct_sockaddr_storage
1122     symver
1123     symver_gnu_asm
1124     symver_asm_label
1125     sys_mman_h
1126     sys_resource_h
1127     sys_select_h
1128     sys_soundcard_h
1129     sys_videoio_h
1130     termios_h
1131     threads
1132     trunc
1133     truncf
1134     vfp_args
1135     VirtualAlloc
1136     winsock2_h
1137     xform_asm
1138     xmm_clobbers
1139     yasm
1140 "
1141
1142 # options emitted with CONFIG_ prefix but not available on command line
1143 CONFIG_EXTRA="
1144     avutil
1145     gplv3
1146     lgplv3
1147 "
1148
1149 CMDLINE_SELECT="
1150     $ARCH_EXT_LIST
1151     $CONFIG_LIST
1152     $THREADS_LIST
1153     asm
1154     cross_compile
1155     debug
1156     extra_warnings
1157     logging
1158     optimizations
1159     stripping
1160     symver
1161     yasm
1162 "
1163
1164 PATHS_LIST='
1165     bindir
1166     datadir
1167     incdir
1168     libdir
1169     mandir
1170     prefix
1171     shlibdir
1172 '
1173
1174 CMDLINE_SET="
1175     $PATHS_LIST
1176     ar
1177     arch
1178     as
1179     build_suffix
1180     cc
1181     cpu
1182     cross_prefix
1183     dep_cc
1184     extra_version
1185     host_cc
1186     host_cflags
1187     host_ldflags
1188     host_libs
1189     host_os
1190     install
1191     ld
1192     logfile
1193     malloc_prefix
1194     nm
1195     optflags
1196     pkg_config
1197     samples
1198     strip
1199     sysinclude
1200     sysroot
1201     target_exec
1202     target_os
1203     target_path
1204 "
1205
1206 CMDLINE_APPEND="
1207     extra_cflags
1208 "
1209
1210 # code dependency declarations
1211
1212 # architecture extensions
1213
1214 armv5te_deps="arm"
1215 armv6_deps="arm"
1216 armv6t2_deps="arm"
1217 armvfp_deps="arm"
1218 iwmmxt_deps="arm"
1219 neon_deps="arm"
1220 vfpv3_deps="armvfp"
1221
1222 mmi_deps="mips"
1223
1224 altivec_deps="ppc"
1225 ppc4xx_deps="ppc"
1226
1227 vis_deps="sparc"
1228
1229 x86_64_suggest="cmov fast_cmov"
1230 amd3dnow_deps="mmx"
1231 amd3dnowext_deps="amd3dnow"
1232 mmx_deps="x86"
1233 mmx2_deps="mmx"
1234 sse_deps="mmx"
1235 ssse3_deps="sse"
1236 avx_deps="ssse3"
1237
1238 aligned_stack_if_any="ppc x86"
1239 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1240 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1241 fast_unaligned_if_any="armv6 ppc x86"
1242
1243 need_memalign="altivec neon sse"
1244 inline_asm_deps="!tms470"
1245
1246 symver_if_any="symver_asm_label symver_gnu_asm"
1247
1248 # subsystems
1249 dct_select="rdft"
1250 mdct_select="fft"
1251 rdft_select="fft"
1252 mpegaudiodsp_select="dct"
1253
1254 # decoders / encoders / hardware accelerators
1255 aac_decoder_select="mdct sinewin"
1256 aac_encoder_select="mdct sinewin"
1257 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1258 ac3_decoder_select="mdct ac3dsp ac3_parser"
1259 ac3_encoder_select="mdct ac3dsp"
1260 ac3_fixed_encoder_select="mdct ac3dsp"
1261 alac_encoder_select="lpc"
1262 amrnb_decoder_select="lsp"
1263 amrwb_decoder_select="lsp"
1264 atrac1_decoder_select="mdct sinewin"
1265 atrac3_decoder_select="mdct"
1266 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1267 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1268 cavs_decoder_select="golomb"
1269 cook_decoder_select="mdct sinewin"
1270 cscd_decoder_suggest="zlib"
1271 dca_decoder_select="mdct"
1272 dnxhd_encoder_select="aandct"
1273 dxa_decoder_select="zlib"
1274 eac3_decoder_select="ac3_decoder"
1275 eac3_encoder_select="mdct ac3dsp"
1276 eamad_decoder_select="aandct"
1277 eatgq_decoder_select="aandct"
1278 eatqi_decoder_select="aandct"
1279 ffv1_decoder_select="golomb"
1280 flac_decoder_select="golomb"
1281 flac_encoder_select="golomb lpc"
1282 flashsv_decoder_select="zlib"
1283 flashsv_encoder_select="zlib"
1284 flashsv2_encoder_select="zlib"
1285 flashsv2_decoder_select="zlib"
1286 flv_decoder_select="h263_decoder"
1287 flv_encoder_select="h263_encoder"
1288 fraps_decoder_select="huffman"
1289 h261_encoder_select="aandct"
1290 h263_decoder_select="h263_parser"
1291 h263_encoder_select="aandct"
1292 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1293 h263i_decoder_select="h263_decoder"
1294 h263p_encoder_select="h263_encoder"
1295 h264_decoder_select="golomb h264dsp h264pred"
1296 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1297 h264_dxva2_hwaccel_deps="dxva2api_h"
1298 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1299 h264_vaapi_hwaccel_select="vaapi"
1300 h264_vdpau_decoder_select="vdpau h264_decoder"
1301 imc_decoder_select="fft mdct sinewin"
1302 jpegls_decoder_select="golomb"
1303 jpegls_encoder_select="golomb"
1304 ljpeg_encoder_select="aandct"
1305 loco_decoder_select="golomb"
1306 mjpeg_encoder_select="aandct"
1307 mlp_decoder_select="mlp_parser"
1308 mp1_decoder_select="mpegaudiodsp"
1309 mp2_decoder_select="mpegaudiodsp"
1310 mp3adu_decoder_select="mpegaudiodsp"
1311 mp3_decoder_select="mpegaudiodsp"
1312 mp3on4_decoder_select="mpegaudiodsp"
1313 mp1float_decoder_select="mpegaudiodsp"
1314 mp2float_decoder_select="mpegaudiodsp"
1315 mp3adufloat_decoder_select="mpegaudiodsp"
1316 mp3float_decoder_select="mpegaudiodsp"
1317 mp3on4float_decoder_select="mpegaudiodsp"
1318 mpeg1video_encoder_select="aandct"
1319 mpeg2video_encoder_select="aandct"
1320 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1321 mpeg4_encoder_select="h263_encoder"
1322 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1323 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1324 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1325 mpeg2_crystalhd_decoder_select="crystalhd"
1326 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1327 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1328 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1329 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1330 mpeg4_crystalhd_decoder_select="crystalhd"
1331 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1332 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1333 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1334 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1335 msmpeg4_crystalhd_decoder_select="crystalhd"
1336 msmpeg4v1_decoder_select="h263_decoder"
1337 msmpeg4v1_encoder_select="h263_encoder"
1338 msmpeg4v2_decoder_select="h263_decoder"
1339 msmpeg4v2_encoder_select="h263_encoder"
1340 msmpeg4v3_decoder_select="h263_decoder"
1341 msmpeg4v3_encoder_select="h263_encoder"
1342 nellymoser_decoder_select="mdct sinewin"
1343 nellymoser_encoder_select="mdct sinewin"
1344 png_decoder_select="zlib"
1345 png_encoder_select="zlib"
1346 qcelp_decoder_select="lsp"
1347 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1348 ra_144_encoder_select="lpc"
1349 rv10_decoder_select="h263_decoder"
1350 rv10_encoder_select="h263_encoder"
1351 rv20_decoder_select="h263_decoder"
1352 rv20_encoder_select="h263_encoder"
1353 rv30_decoder_select="golomb h264pred"
1354 rv40_decoder_select="golomb h264pred"
1355 shorten_decoder_select="golomb"
1356 sipr_decoder_select="lsp"
1357 snow_decoder_select="dwt"
1358 snow_encoder_select="aandct dwt"
1359 sonic_decoder_select="golomb"
1360 sonic_encoder_select="golomb"
1361 sonic_ls_encoder_select="golomb"
1362 svq1_encoder_select="aandct"
1363 svq3_decoder_select="golomb h264dsp h264pred"
1364 svq3_decoder_suggest="zlib"
1365 theora_decoder_select="vp3_decoder"
1366 tiff_decoder_suggest="zlib"
1367 tiff_encoder_suggest="zlib"
1368 truehd_decoder_select="mlp_decoder"
1369 tscc_decoder_select="zlib"
1370 twinvq_decoder_select="mdct lsp sinewin"
1371 vc1_decoder_select="h263_decoder"
1372 vc1_crystalhd_decoder_select="crystalhd"
1373 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1374 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1375 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1376 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1377 vorbis_decoder_select="mdct"
1378 vorbis_encoder_select="mdct"
1379 vp6_decoder_select="huffman"
1380 vp6a_decoder_select="vp6_decoder"
1381 vp6f_decoder_select="vp6_decoder"
1382 vp8_decoder_select="h264pred"
1383 wmapro_decoder_select="mdct sinewin"
1384 wmav1_decoder_select="mdct sinewin"
1385 wmav1_encoder_select="mdct sinewin"
1386 wmav2_decoder_select="mdct sinewin"
1387 wmav2_encoder_select="mdct sinewin"
1388 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1389 wmv1_decoder_select="h263_decoder"
1390 wmv1_encoder_select="h263_encoder"
1391 wmv2_decoder_select="h263_decoder"
1392 wmv2_encoder_select="h263_encoder"
1393 wmv3_decoder_select="vc1_decoder"
1394 wmv3_crystalhd_decoder_select="crystalhd"
1395 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1396 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1397 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1398 zlib_decoder_select="zlib"
1399 zlib_encoder_select="zlib"
1400 zmbv_decoder_select="zlib"
1401 zmbv_encoder_select="zlib"
1402
1403 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1404 vaapi_deps="va_va_h"
1405 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1406
1407 # parsers
1408 h264_parser_select="golomb h264dsp h264pred"
1409
1410 # external libraries
1411 libcelt_decoder_deps="libcelt"
1412 libdirac_decoder_deps="libdirac !libschroedinger"
1413 libdirac_encoder_deps="libdirac"
1414 libfaac_encoder_deps="libfaac"
1415 libgsm_decoder_deps="libgsm"
1416 libgsm_encoder_deps="libgsm"
1417 libgsm_ms_decoder_deps="libgsm"
1418 libgsm_ms_encoder_deps="libgsm"
1419 libmp3lame_encoder_deps="libmp3lame"
1420 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1421 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1422 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1423 libopenjpeg_decoder_deps="libopenjpeg"
1424 libschroedinger_decoder_deps="libschroedinger"
1425 libschroedinger_encoder_deps="libschroedinger"
1426 libspeex_decoder_deps="libspeex"
1427 libtheora_encoder_deps="libtheora"
1428 libvo_aacenc_encoder_deps="libvo_aacenc"
1429 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1430 libvorbis_encoder_deps="libvorbis"
1431 libvpx_decoder_deps="libvpx"
1432 libvpx_encoder_deps="libvpx"
1433 libx264_encoder_deps="libx264"
1434 libxavs_encoder_deps="libxavs"
1435 libxvid_encoder_deps="libxvid"
1436
1437 # demuxers / muxers
1438 ac3_demuxer_select="ac3_parser"
1439 asf_stream_muxer_select="asf_muxer"
1440 avisynth_demuxer_deps="avisynth"
1441 dirac_demuxer_select="dirac_parser"
1442 eac3_demuxer_select="ac3_parser"
1443 flac_demuxer_select="flac_parser"
1444 ipod_muxer_select="mov_muxer"
1445 libnut_demuxer_deps="libnut"
1446 libnut_muxer_deps="libnut"
1447 matroska_audio_muxer_select="matroska_muxer"
1448 matroska_demuxer_suggest="zlib bzlib"
1449 mov_demuxer_suggest="zlib"
1450 mp3_demuxer_select="mpegaudio_parser"
1451 mp4_muxer_select="mov_muxer"
1452 mpegtsraw_demuxer_select="mpegts_demuxer"
1453 mxf_d10_muxer_select="mxf_muxer"
1454 ogg_demuxer_select="golomb"
1455 psp_muxer_select="mov_muxer"
1456 rtp_demuxer_select="sdp_demuxer"
1457 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1458 rtsp_demuxer_select="http_protocol rtpdec"
1459 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1460 sap_demuxer_select="sdp_demuxer"
1461 sap_muxer_select="rtp_muxer rtp_protocol"
1462 sdp_demuxer_select="rtpdec"
1463 spdif_muxer_select="aac_parser"
1464 tg2_muxer_select="mov_muxer"
1465 tgp_muxer_select="mov_muxer"
1466 w64_demuxer_deps="wav_demuxer"
1467
1468 # indevs / outdevs
1469 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1470 alsa_outdev_deps="alsa_asoundlib_h"
1471 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1472 dshow_indev_deps="IBaseFilter"
1473 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1474 dv1394_indev_deps="dv1394 dv_demuxer"
1475 fbdev_indev_deps="linux_fb_h"
1476 jack_indev_deps="jack_jack_h sem_timedwait"
1477 lavfi_indev_deps="avfilter"
1478 libdc1394_indev_deps="libdc1394"
1479 openal_indev_deps="openal"
1480 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1481 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1482 sdl_outdev_deps="sdl"
1483 sndio_indev_deps="sndio_h"
1484 sndio_outdev_deps="sndio_h"
1485 v4l_indev_deps="linux_videodev_h"
1486 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1487 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1488 vfwcap_indev_extralibs="-lavicap32"
1489 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1490 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1491
1492 # protocols
1493 gopher_protocol_deps="network"
1494 http_protocol_deps="network"
1495 http_protocol_select="tcp_protocol"
1496 mmsh_protocol_select="http_protocol"
1497 mmst_protocol_deps="network"
1498 rtmp_protocol_select="tcp_protocol"
1499 rtp_protocol_select="udp_protocol"
1500 tcp_protocol_deps="network"
1501 udp_protocol_deps="network"
1502
1503 # filters
1504 abuffer_filter_deps="strtok_r"
1505 aformat_filter_deps="strtok_r"
1506 blackframe_filter_deps="gpl"
1507 boxblur_filter_deps="gpl"
1508 cropdetect_filter_deps="gpl"
1509 delogo_filter_deps="gpl"
1510 drawtext_filter_deps="libfreetype"
1511 frei0r_filter_deps="frei0r dlopen strtok_r"
1512 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1513 hqdn3d_filter_deps="gpl"
1514 movie_filter_deps="avcodec avformat"
1515 mp_filter_deps="gpl avcodec"
1516 mptestsrc_filter_deps="gpl"
1517 negate_filter_deps="lut_filter"
1518 ocv_filter_deps="libopencv"
1519 scale_filter_deps="swscale"
1520 yadif_filter_deps="gpl"
1521
1522 # libraries
1523 avdevice_deps="avcodec avformat"
1524 avformat_deps="avcodec"
1525 postproc_deps="gpl"
1526
1527 # programs
1528 ffmpeg_deps="avcodec avformat swscale"
1529 ffmpeg_select="buffer_filter buffersink_filter"
1530 av_deps="avcodec avformat swscale"
1531 av_select="buffer_filter"
1532 ffplay_deps="avcodec avformat swscale sdl"
1533 ffplay_select="buffersink_filter rdft"
1534 ffprobe_deps="avcodec avformat"
1535 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1536 ffserver_extralibs='$ldl'
1537
1538 doc_deps="texi2html"
1539
1540 # tests
1541
1542 test_deps(){
1543     suf1=$1
1544     suf2=$2
1545     shift 2
1546     for v; do
1547         dep=${v%=*}
1548         tests=${v#*=}
1549         for name in ${tests}; do
1550             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1551         done
1552     done
1553 }
1554
1555 test_deps _encoder _decoder                                             \
1556     adpcm_g726=g726                                                     \
1557     adpcm_ima_qt                                                        \
1558     adpcm_ima_wav                                                       \
1559     adpcm_ms                                                            \
1560     adpcm_swf                                                           \
1561     adpcm_yamaha=adpcm_yam                                              \
1562     alac                                                                \
1563     asv1                                                                \
1564     asv2                                                                \
1565     bmp                                                                 \
1566     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1567     dvvideo="dv dv50"                                                   \
1568     ffv1                                                                \
1569     flac                                                                \
1570     flashsv                                                             \
1571     flv                                                                 \
1572     gif                                                                 \
1573     h261                                                                \
1574     h263="h263 h263p"                                                   \
1575     huffyuv                                                             \
1576     jpegls                                                              \
1577     mjpeg="jpg mjpeg ljpeg"                                             \
1578     mp2                                                                 \
1579     mpeg1video="mpeg mpeg1b"                                            \
1580     mpeg2video="mpeg2 mpeg2thread"                                      \
1581     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1582     msmpeg4v3=msmpeg4                                                   \
1583     msmpeg4v2                                                           \
1584     pbm=pbmpipe                                                         \
1585     pcx                                                                 \
1586     pgm="pgm pgmpipe"                                                   \
1587     png                                                                 \
1588     ppm="ppm ppmpipe"                                                   \
1589     rawvideo="rgb yuv"                                                  \
1590     roq                                                                 \
1591     rv10                                                                \
1592     rv20                                                                \
1593     sgi                                                                 \
1594     snow="snow snowll"                                                  \
1595     svq1                                                                \
1596     targa=tga                                                           \
1597     tiff                                                                \
1598     wmav1                                                               \
1599     wmav2                                                               \
1600     wmv1                                                                \
1601     wmv2                                                                \
1602
1603 test_deps _muxer _demuxer                                               \
1604     aiff                                                                \
1605     pcm_alaw=alaw                                                       \
1606     asf                                                                 \
1607     au                                                                  \
1608     avi                                                                 \
1609     dv=dv_fmt                                                           \
1610     ffm                                                                 \
1611     flv=flv_fmt                                                         \
1612     gxf                                                                 \
1613     matroska=mkv                                                        \
1614     mmf                                                                 \
1615     mov                                                                 \
1616     pcm_mulaw=mulaw                                                     \
1617     mxf="mxf mxf_d10"                                                   \
1618     nut                                                                 \
1619     ogg                                                                 \
1620     rawvideo=pixfmt                                                     \
1621     rm                                                                  \
1622     swf                                                                 \
1623     mpegts=ts                                                           \
1624     voc                                                                 \
1625     wav                                                                 \
1626     yuv4mpegpipe=yuv4mpeg                                               \
1627
1628 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1629 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1630
1631 # default parameters
1632
1633 logfile="config.log"
1634
1635 # installation paths
1636 prefix_default="/usr/local"
1637 bindir_default='${prefix}/bin'
1638 datadir_default='${prefix}/share/ffmpeg'
1639 incdir_default='${prefix}/include'
1640 libdir_default='${prefix}/lib'
1641 mandir_default='${prefix}/share/man'
1642 shlibdir_default="$libdir_default"
1643
1644 # toolchain
1645 ar_default="ar"
1646 cc_default="gcc"
1647 cc_version=\"unknown\"
1648 host_cc_default="gcc"
1649 install="install"
1650 ln_s="ln -sf"
1651 nm_default="nm"
1652 objformat="elf"
1653 pkg_config_default=pkg-config
1654 ranlib="ranlib"
1655 strip_default="strip"
1656 yasmexe="yasm"
1657 nogas=":"
1658
1659 nm_opts='-g'
1660
1661 # machine
1662 arch_default=$(uname -m)
1663 cpu="generic"
1664
1665 # OS
1666 target_os_default=$(tolower $(uname -s))
1667 host_os=$target_os_default
1668
1669 # configurable options
1670 enable avcodec
1671 enable avdevice
1672 enable avfilter
1673 enable avformat
1674 enable avutil
1675 enable asm
1676 enable debug
1677 enable doc
1678 enable fastdiv
1679 enable ffmpeg
1680 enable avconv
1681 enable ffplay
1682 enable ffprobe
1683 enable ffserver
1684 enable network
1685 enable optimizations
1686 enable postproc
1687 enable protocols
1688 enable static
1689 enable stripping
1690 enable swscale
1691 enable swscale_alpha
1692
1693 # build settings
1694 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1695 FFSERVERLDFLAGS=-Wl,-E
1696 LIBPREF="lib"
1697 LIBSUF=".a"
1698 FULLNAME='$(NAME)$(BUILDSUF)'
1699 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1700 SLIBPREF="lib"
1701 SLIBSUF=".so"
1702 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1703 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1704 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1705 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1706 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1707 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1708
1709 AS_O='-o $@'
1710 CC_O='-o $@'
1711
1712 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1713 host_libs='-lm'
1714
1715 target_path='$(CURDIR)'
1716
1717 # since the object filename is not given with the -MM flag, the compiler
1718 # is only able to print the basename, and we must add the path ourselves
1719 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1720 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1721
1722 # find source path
1723 if test -f configure; then
1724     source_path=.
1725 else
1726     source_path=$(cd $(dirname "$0"); pwd)
1727     echo "$source_path" | grep -q '[[:blank:]]' &&
1728         die "Out of tree builds are impossible with whitespace in source path."
1729     test -e "$source_path/config.h" &&
1730         die "Out of tree builds are impossible with config.h in source dir."
1731 fi
1732
1733 for v in "$@"; do
1734     r=${v#*=}
1735     l=${v%"$r"}
1736     r=$(sh_quote "$r")
1737     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1738 done
1739
1740 find_things(){
1741     thing=$1
1742     pattern=$2
1743     file=$source_path/$3
1744     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1745 }
1746
1747 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1748 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1749 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1750 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1751 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1752 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1753 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1754 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1755 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1756 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1757 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1758
1759 find_tests(){
1760     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1761 }
1762
1763 ACODEC_TESTS=$(find_tests acodec)
1764 VCODEC_TESTS=$(find_tests vsynth1)
1765 LAVF_TESTS=$(find_tests lavf)
1766 LAVFI_TESTS=$(find_tests lavfi)
1767 SEEK_TESTS=$(find_tests seek seek_)
1768
1769 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1770
1771 for n in $COMPONENT_LIST; do
1772     v=$(toupper ${n%s})_LIST
1773     eval enable \$$v
1774     eval ${n}_if_any="\$$v"
1775 done
1776
1777 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1778
1779 die_unknown(){
1780     echo "Unknown option \"$1\"."
1781     echo "See $0 --help for available options."
1782     exit 1
1783 }
1784
1785 show_list() {
1786     suffix=_$1
1787     shift
1788     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1789     exit 0
1790 }
1791
1792 for opt do
1793     optval="${opt#*=}"
1794     case "$opt" in
1795     --extra-ldflags=*) add_ldflags $optval
1796     ;;
1797     --extra-libs=*) add_extralibs $optval
1798     ;;
1799     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1800     ;;
1801     --enable-debug=*) debuglevel="$optval"
1802     ;;
1803     --disable-everything)
1804     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1805     ;;
1806     --enable-*=*|--disable-*=*)
1807     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1808     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1809     eval list=\$$(toupper $thing)_LIST
1810     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1811     $action $(filter "$name" $list)
1812     ;;
1813     --enable-?*|--disable-?*)
1814     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1815     if is_in $option $COMPONENT_LIST; then
1816         test $action = disable && action=unset
1817         eval $action \$$(toupper ${option%s})_LIST
1818     elif is_in $option $CMDLINE_SELECT; then
1819         $action $option
1820     else
1821         die_unknown $opt
1822     fi
1823     ;;
1824     --list-*)
1825         NAME="${opt#--list-}"
1826         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1827         NAME=${NAME%s}
1828         eval show_list $NAME \$$(toupper $NAME)_LIST
1829     ;;
1830     --help|-h) show_help
1831     ;;
1832     *)
1833     optname="${opt%%=*}"
1834     optname="${optname#--}"
1835     optname=$(echo "$optname" | sed 's/-/_/g')
1836     if is_in $optname $CMDLINE_SET; then
1837         eval $optname='$optval'
1838     elif is_in $optname $CMDLINE_APPEND; then
1839         append $optname "$optval"
1840     else
1841          die_unknown $opt
1842     fi
1843     ;;
1844     esac
1845 done
1846
1847 disabled logging && logfile=/dev/null
1848
1849 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1850 set >> $logfile
1851
1852 test -n "$cross_prefix" && enable cross_compile
1853
1854 if enabled cross_compile; then
1855     test -n "$arch" && test -n "$target_os" ||
1856         die "Must specify target arch and OS when cross-compiling"
1857 fi
1858
1859 set_default arch target_os
1860
1861 ar_default="${cross_prefix}${ar_default}"
1862 cc_default="${cross_prefix}${cc_default}"
1863 nm_default="${cross_prefix}${nm_default}"
1864 pkg_config_default="${cross_prefix}${pkg_config_default}"
1865 ranlib="${cross_prefix}${ranlib}"
1866 strip_default="${cross_prefix}${strip_default}"
1867
1868 sysinclude_default="${sysroot}/usr/include"
1869
1870 set_default cc nm pkg_config strip sysinclude
1871 enabled cross_compile || host_cc_default=$cc
1872 set_default host_cc
1873
1874 if ! $pkg_config --version >/dev/null 2>&1; then
1875     warn "$pkg_config not found, library detection may fail."
1876     pkg_config=false
1877 fi
1878
1879 exesuf() {
1880     case $1 in
1881         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1882     esac
1883 }
1884
1885 EXESUF=$(exesuf $target_os)
1886 HOSTEXESUF=$(exesuf $host_os)
1887
1888 # set temporary file name
1889 : ${TMPDIR:=$TEMPDIR}
1890 : ${TMPDIR:=$TMP}
1891 : ${TMPDIR:=/tmp}
1892
1893 if ! check_cmd mktemp -u XXXXXX; then
1894     # simple replacement for missing mktemp
1895     # NOT SAFE FOR GENERAL USE
1896     mktemp(){
1897         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1898     }
1899 fi
1900
1901 tmpfile(){
1902     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1903         (set -C; exec > $tmp) 2>/dev/null ||
1904         die "Unable to create temporary file in $TMPDIR."
1905     append TMPFILES $tmp
1906     eval $1=$tmp
1907 }
1908
1909 trap 'rm -f -- $TMPFILES' EXIT
1910
1911 tmpfile TMPC  .c
1912 tmpfile TMPE  $EXESUF
1913 tmpfile TMPH  .h
1914 tmpfile TMPO  .o
1915 tmpfile TMPS  .S
1916 tmpfile TMPV  .ver
1917 tmpfile TMPSH .sh
1918 tmpfile TMPASM .asm
1919
1920 unset -f mktemp
1921
1922 chmod +x $TMPE
1923
1924 # make sure we can execute files in $TMPDIR
1925 cat > $TMPSH 2>> $logfile <<EOF
1926 #! /bin/sh
1927 EOF
1928 chmod +x $TMPSH >> $logfile 2>&1
1929 if ! $TMPSH >> $logfile 2>&1; then
1930     cat <<EOF
1931 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1932 variable to another directory and make sure that it is not mounted noexec.
1933 EOF
1934     die "Sanity test failed."
1935 fi
1936
1937 filter_cflags=echo
1938 filter_cppflags=echo
1939 filter_asflags=echo
1940
1941 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1942     cc_type=llvm_gcc
1943     cc_version=__VERSION__
1944     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1945     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1946     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1947     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1948     speed_cflags='-O3'
1949     size_cflags='-Os'
1950 elif $cc -v 2>&1 | grep -qi ^gcc; then
1951     cc_type=gcc
1952     cc_version=__VERSION__
1953     gcc_version=$($cc --version | head -n1)
1954     gcc_basever=$($cc -dumpversion)
1955     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1956     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1957     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1958     if ! $cc -dumpversion | grep -q '^2\.'; then
1959         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1960         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1961     fi
1962     speed_cflags='-O3'
1963     size_cflags='-Os'
1964 elif $cc --version 2>/dev/null | grep -q Intel; then
1965     cc_type=icc
1966     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1967     cc_ident=$($cc --version | head -n1)
1968     icc_version=$($cc -dumpversion)
1969     CC_DEPFLAGS='-MMD'
1970     AS_DEPFLAGS='-MMD'
1971     speed_cflags='-O3'
1972     size_cflags='-Os'
1973     noopt_cflags='-O1'
1974 elif $cc -v 2>&1 | grep -q xlc; then
1975     cc_type=xlc
1976     cc_version="AV_STRINGIFY(__IBMC__)"
1977     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1978     speed_cflags='-O5'
1979     size_cflags='-O5 -qcompact'
1980 elif $cc -V 2>/dev/null | grep -q Compaq; then
1981     cc_type=ccc
1982     cc_version="AV_STRINGIFY(__DECC_VER)"
1983     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1984     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1985     debuglevel=3
1986     add_ldflags -Wl,-z,now # calls to libots crash without this
1987     speed_cflags='-fast'
1988     size_cflags='-O1'
1989 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1990     test -d "$sysroot" || die "No valid sysroot specified."
1991     cc_type=armcc
1992     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1993     cc_ident=$($cc --vsn | head -n1)
1994     armcc_conf="$PWD/armcc.conf"
1995     $cc --arm_linux_configure                 \
1996         --arm_linux_config_file="$armcc_conf" \
1997         --configure_sysroot="$sysroot"        \
1998         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1999         die "Error creating armcc configuration file."
2000     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2001     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2002     as_default="${cross_prefix}gcc"
2003     CC_DEPFLAGS='-MMD'
2004     AS_DEPFLAGS='-MMD'
2005     speed_cflags='-O3'
2006     size_cflags='-Os'
2007     filter_asflags="filter_out -W${armcc_opt}*"
2008 elif $cc -version 2>/dev/null | grep -q TMS470; then
2009     cc_type=tms470
2010     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2011     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2012     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2013     CC_O='-fr=$(@D)'
2014     as_default="${cross_prefix}gcc"
2015     ld_default="${cross_prefix}gcc"
2016     TMPO=$(basename $TMPC .c).o
2017     append TMPFILES $TMPO
2018     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2019     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2020     AS_DEPFLAGS='-MMD'
2021     speed_cflags='-O3 -mf=5'
2022     size_cflags='-O3 -mf=2'
2023     filter_cflags=tms470_flags
2024     tms470_flags(){
2025         for flag; do
2026             case $flag in
2027                 -march=*|-mcpu=*)
2028                     case "${flag#*=}" in
2029                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2030                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2031                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2032                         armv6*|arm11*)          echo -mv=6   ;;
2033                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2034                                                 echo -mv=5e  ;;
2035                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2036                     esac
2037                     ;;
2038                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2039                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2040                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2041                 -msoft-float)   echo --float_support=vfplib       ;;
2042                 -O[0-3]|-mf=*)  echo $flag                        ;;
2043                 -g)             echo -g -mn                       ;;
2044                 -pds=*)         echo $flag                        ;;
2045             esac
2046         done
2047     }
2048 elif $cc -v 2>&1 | grep -q clang; then
2049     cc_type=clang
2050     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2051         cc_version=__clang_version__ || cc_version=__VERSION__
2052     cc_ident=$($cc --version | head -n1)
2053     CC_DEPFLAGS='-MMD'
2054     AS_DEPFLAGS='-MMD'
2055     speed_cflags='-O3'
2056     size_cflags='-Os'
2057 elif $cc -V 2>&1 | grep -q Sun; then
2058     cc_type=suncc
2059     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2060     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2061     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2062     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2063     add_ldflags -xc99
2064     speed_cflags='-O5'
2065     size_cflags='-O5 -xspace'
2066     filter_cflags=suncc_flags
2067     suncc_flags(){
2068         for flag; do
2069             case $flag in
2070                 -march=*|-mcpu=*)
2071                     case "${flag#*=}" in
2072                         native)                   echo -xtarget=native       ;;
2073                         v9|niagara)               echo -xarch=sparc          ;;
2074                         ultrasparc)               echo -xarch=sparcvis       ;;
2075                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2076                         i586|pentium)             echo -xchip=pentium        ;;
2077                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2078                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2079                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2080                         pentium4*)          echo -xtarget=pentium4           ;;
2081                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2082                         *-sse3)             echo -xarch=sse3                 ;;
2083                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2084                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2085                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2086                         k8|opteron|athlon64|athlon-fx)
2087                                                   echo -xarch=sse2a          ;;
2088                         athlon*)                  echo -xarch=pentium_proa   ;;
2089                     esac
2090                     ;;
2091                 -std=c99)             echo -xc99              ;;
2092                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2093                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2094                 -W*,*)                echo $flag              ;;
2095                 -f*-*|-W*)                                    ;;
2096                 *)                    echo $flag              ;;
2097             esac
2098         done
2099     }
2100 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2101     cc_type=pathscale
2102     cc_version=__PATHSCALE__
2103     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2104     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2105     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2106     speed_cflags='-O2'
2107     size_cflags='-Os'
2108     filter_cflags='filter_out -Wdisabled-optimization'
2109 elif $cc -v 2>&1 | grep -q Open64; then
2110     cc_type=open64
2111     cc_version=__OPEN64__
2112     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2113     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2114     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2115     speed_cflags='-O2'
2116     size_cflags='-Os'
2117     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2118 fi
2119
2120 test -n "$cc_type" && enable $cc_type ||
2121     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2122
2123 : ${as_default:=$cc}
2124 : ${dep_cc_default:=$cc}
2125 : ${ld_default:=$cc}
2126 set_default ar as dep_cc ld
2127
2128 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2129 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2130
2131 add_cflags $extra_cflags
2132 add_asflags $extra_cflags
2133
2134 if test -n "$sysroot"; then
2135     case "$cc_type" in
2136         gcc|llvm_gcc|clang)
2137             add_cppflags --sysroot="$sysroot"
2138             add_ldflags --sysroot="$sysroot"
2139         ;;
2140         tms470)
2141             add_cppflags -I"$sysinclude"
2142             add_ldflags  --sysroot="$sysroot"
2143         ;;
2144     esac
2145 fi
2146
2147 if test "$cpu" = host; then
2148     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2149
2150     case "$cc_type" in
2151         gcc|llvm_gcc)
2152             check_native(){
2153                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2154                 sed -n "/cc1.*$1=/{
2155                             s/.*$1=\\([^ ]*\\).*/\\1/
2156                             p
2157                             q
2158                         }" $TMPE
2159             }
2160             cpu=$(check_native -march || check_native -mcpu)
2161         ;;
2162     esac
2163
2164     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2165 fi
2166
2167 # Deal with common $arch aliases
2168 case "$arch" in
2169     arm*)
2170         arch="arm"
2171     ;;
2172     mips|mipsel|IP*)
2173         arch="mips"
2174     ;;
2175     mips64*)
2176         arch="mips"
2177         subarch="mips64"
2178     ;;
2179     parisc|hppa)
2180         arch="parisc"
2181     ;;
2182     parisc64|hppa64)
2183         arch="parisc"
2184         subarch="parisc64"
2185     ;;
2186     "Power Macintosh"|ppc|powerpc)
2187         arch="ppc"
2188     ;;
2189     ppc64|powerpc64)
2190         arch="ppc"
2191         subarch="ppc64"
2192     ;;
2193     s390|s390x)
2194         arch="s390"
2195     ;;
2196     sh4|sh)
2197         arch="sh4"
2198     ;;
2199     sun4u|sparc64)
2200         arch="sparc"
2201         subarch="sparc64"
2202     ;;
2203     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2204         arch="x86"
2205     ;;
2206 esac
2207
2208 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2209 enable $arch
2210
2211 # Add processor-specific flags
2212 if test "$cpu" = generic; then
2213     : do nothing
2214 elif enabled ppc; then
2215
2216     case $(tolower $cpu) in
2217         601|ppc601|powerpc601)
2218             cpuflags="-mcpu=601"
2219             disable altivec
2220         ;;
2221         603*|ppc603*|powerpc603*)
2222             cpuflags="-mcpu=603"
2223             disable altivec
2224         ;;
2225         604*|ppc604*|powerpc604*)
2226             cpuflags="-mcpu=604"
2227             disable altivec
2228         ;;
2229         g3|75*|ppc75*|powerpc75*)
2230             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2231             disable altivec
2232         ;;
2233         g4|745*|ppc745*|powerpc745*)
2234             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2235         ;;
2236         74*|ppc74*|powerpc74*)
2237             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2238         ;;
2239         g5|970|ppc970|powerpc970|power4*)
2240             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2241         ;;
2242         cell)
2243             cpuflags="-mcpu=cell"
2244             enable ldbrx
2245         ;;
2246         e500v2)
2247             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2248             disable altivec
2249         ;;
2250         e500)
2251             cpuflags="-mcpu=8540 -mhard-float"
2252             disable altivec
2253         ;;
2254     esac
2255
2256 elif enabled x86; then
2257
2258     case $cpu in
2259         i[345]86|pentium)
2260             cpuflags="-march=$cpu"
2261             disable mmx
2262         ;;
2263         # targets that do NOT support conditional mov (cmov)
2264         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2265             cpuflags="-march=$cpu"
2266             disable cmov
2267         ;;
2268         # targets that do support conditional mov (cmov)
2269         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2270             cpuflags="-march=$cpu"
2271             enable cmov
2272             enable fast_cmov
2273         ;;
2274         # targets that do support conditional mov but on which it's slow
2275         pentium4|pentium4m|prescott|nocona)
2276             cpuflags="-march=$cpu"
2277             enable cmov
2278             disable fast_cmov
2279         ;;
2280     esac
2281
2282 elif enabled sparc; then
2283
2284     case $cpu in
2285         niagara)
2286             cpuflags="-mcpu=$cpu"
2287             disable vis
2288         ;;
2289         sparc64)
2290             cpuflags="-mcpu=v9"
2291         ;;
2292     esac
2293
2294 elif enabled arm; then
2295
2296     case $cpu in
2297         armv*)
2298             cpuflags="-march=$cpu"
2299             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2300         ;;
2301         *)
2302             cpuflags="-mcpu=$cpu"
2303             case $cpu in
2304                 cortex-a*)                               subarch=armv7a  ;;
2305                 cortex-r*)                               subarch=armv7r  ;;
2306                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2307                 arm11*)                                  subarch=armv6   ;;
2308                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2309                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2310             esac
2311         ;;
2312     esac
2313
2314 elif enabled alpha; then
2315
2316     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2317
2318 elif enabled bfin; then
2319
2320     cpuflags="-mcpu=$cpu"
2321
2322 elif enabled mips; then
2323
2324     cpuflags="-march=$cpu"
2325
2326 elif enabled avr32; then
2327
2328     case $cpu in
2329         ap7[02]0[0-2])
2330             subarch="avr32_ap"
2331             cpuflags="-mpart=$cpu"
2332         ;;
2333         ap)
2334             subarch="avr32_ap"
2335             cpuflags="-march=$cpu"
2336         ;;
2337         uc3[ab]*)
2338             subarch="avr32_uc"
2339             cpuflags="-mcpu=$cpu"
2340         ;;
2341         uc)
2342             subarch="avr32_uc"
2343             cpuflags="-march=$cpu"
2344         ;;
2345     esac
2346
2347 fi
2348
2349 add_cflags $cpuflags
2350 add_asflags $cpuflags
2351
2352 # compiler sanity check
2353 check_exec <<EOF
2354 int main(void){ return 0; }
2355 EOF
2356 if test "$?" != 0; then
2357     echo "$cc is unable to create an executable file."
2358     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2359         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2360         echo "Only do this if you know what cross compiling means."
2361     fi
2362     die "C compiler test failed."
2363 fi
2364
2365 add_cppflags -D_ISOC99_SOURCE
2366 check_cflags -std=c99
2367 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2368 #include <stdlib.h>
2369 EOF
2370 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2371 #include <stdlib.h>
2372 EOF
2373
2374 check_host_cflags -std=c99
2375 check_host_cflags -Wall
2376
2377 case "$arch" in
2378     alpha|ia64|mips|parisc|sparc)
2379         spic=$shared
2380     ;;
2381     x86)
2382         subarch="x86_32"
2383         check_cc <<EOF && subarch="x86_64"
2384         int test[(int)sizeof(char*) - 7];
2385 EOF
2386         if test "$subarch" = "x86_64"; then
2387             spic=$shared
2388         fi
2389     ;;
2390 esac
2391
2392 enable $subarch
2393 enabled spic && enable pic
2394
2395 # OS specific
2396 case $target_os in
2397     haiku)
2398         prefix_default="/boot/common"
2399         network_extralibs="-lnetwork"
2400         host_libs=
2401         ;;
2402     sunos)
2403         FFSERVERLDFLAGS=""
2404         SHFLAGS='-shared -Wl,-h,$$(@F)'
2405         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2406         network_extralibs="-lsocket -lnsl"
2407         add_cppflags -D__EXTENSIONS__
2408         nm_opts='-P -g'
2409         ;;
2410     netbsd)
2411         disable symver
2412         oss_indev_extralibs="-lossaudio"
2413         oss_outdev_extralibs="-lossaudio"
2414         ;;
2415     openbsd)
2416         enable malloc_aligned
2417         # On OpenBSD 4.5. the compiler does not use PIC unless
2418         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2419         # however the generated executable will not do anything
2420         # (simply quits with exit-code 1, no crash, no output).
2421         # Thus explicitly enable PIC here.
2422         enable pic
2423         disable symver
2424         SHFLAGS='-shared'
2425         oss_indev_extralibs="-lossaudio"
2426         oss_outdev_extralibs="-lossaudio"
2427         ;;
2428     dragonfly)
2429         enable malloc_aligned
2430         disable symver
2431         ;;
2432     freebsd)
2433         enable malloc_aligned
2434         ;;
2435     bsd/os)
2436         add_extralibs -lpoll -lgnugetopt
2437         strip="strip -d"
2438         ;;
2439     darwin)
2440         enable malloc_aligned
2441         gas="gas-preprocessor.pl $cc"
2442         enabled ppc && add_asflags -force_cpusubtype_ALL
2443         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2444         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2445         strip="${strip} -x"
2446         add_ldflags -Wl,-dynamic,-search_paths_first
2447         SLIBSUF=".dylib"
2448         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2449         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2450         FFSERVERLDFLAGS=-Wl,-bind_at_load
2451         objformat="macho"
2452         enabled x86_64 && objformat="macho64"
2453         enabled_any pic shared ||
2454             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2455         ;;
2456     mingw32*)
2457         if test $target_os = "mingw32ce"; then
2458             disable network
2459         else
2460             target_os=mingw32
2461         fi
2462         LIBTARGET=i386
2463         if enabled x86_64; then
2464             enable malloc_aligned
2465             LIBTARGET=x64
2466         elif enabled arm; then
2467             LIBTARGET=arm-wince
2468         fi
2469         shlibdir_default="$bindir_default"
2470         SLIBPREF=""
2471         SLIBSUF=".dll"
2472         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2473         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2474         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2475         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2476         SLIB_INSTALL_LINKS=
2477         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2478         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2479         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2480         objformat="win32"
2481         enable dos_paths
2482         check_cflags -fno-common
2483         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2484                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2485                 die "ERROR: MinGW runtime version must be >= 3.15."
2486         add_cppflags -U__STRICT_ANSI__
2487         ;;
2488     cygwin*)
2489         target_os=cygwin
2490         shlibdir_default="$bindir_default"
2491         SLIBPREF="cyg"
2492         SLIBSUF=".dll"
2493         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2494         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2495         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2496         objformat="win32"
2497         enable dos_paths
2498         check_cflags -fno-common
2499         add_cppflags -U__STRICT_ANSI__
2500         ;;
2501     *-dos|freedos|opendos)
2502         network_extralibs="-lsocket"
2503         objformat="coff"
2504         enable dos_paths
2505         add_cppflags -U__STRICT_ANSI__
2506         ;;
2507     linux)
2508         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2509         enable dv1394
2510         ;;
2511     irix*)
2512         target_os=irix
2513         ranlib="echo ignoring ranlib"
2514         ;;
2515     os/2*)
2516         strip="lxlite -CS"
2517         ln_s="cp -f"
2518         objformat="aout"
2519         add_cppflags -D_GNU_SOURCE
2520         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2521         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2522         FFSERVERLDFLAGS=""
2523         LIBSUF="_s.a"
2524         SLIBPREF=""
2525         SLIBSUF=".dll"
2526         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2527         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2528         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2529           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2530           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2531           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2532           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2533           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2534         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2535           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2536         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2537         enable dos_paths
2538         ;;
2539     gnu/kfreebsd)
2540         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2541         ;;
2542     gnu)
2543         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2544         ;;
2545     qnx)
2546         add_cppflags -D_QNX_SOURCE
2547         network_extralibs="-lsocket"
2548         ;;
2549     symbian)
2550         SLIBSUF=".dll"
2551         enable dos_paths
2552         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2553         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2554         add_ldflags -Wl,--target1-abs,--no-undefined \
2555                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2556                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2557         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2558                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2559                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2560         ;;
2561     none)
2562         ;;
2563     *)
2564         die "Unknown OS '$target_os'."
2565         ;;
2566 esac
2567
2568 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2569
2570 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2571
2572 set_default $PATHS_LIST
2573
2574 # we need to build at least one lib type
2575 if ! enabled_any static shared; then
2576     cat <<EOF
2577 At least one library type must be built.
2578 Specify --enable-static to build the static libraries or --enable-shared to
2579 build the shared libraries as well. To only build the shared libraries specify
2580 --disable-static in addition to --enable-shared.
2581 EOF
2582     exit 1;
2583 fi
2584
2585 die_license_disabled() {
2586     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2587 }
2588
2589 die_license_disabled gpl libx264
2590 die_license_disabled gpl libxavs
2591 die_license_disabled gpl libxvid
2592 die_license_disabled gpl x11grab
2593
2594 die_license_disabled nonfree libfaac
2595
2596 die_license_disabled version3 libopencore_amrnb
2597 die_license_disabled version3 libopencore_amrwb
2598 die_license_disabled version3 libvo_aacenc
2599 die_license_disabled version3 libvo_amrwbenc
2600
2601 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2602
2603 disabled optimizations || check_cflags -fomit-frame-pointer
2604
2605 enable_pic() {
2606     enable pic
2607     add_cppflags -DPIC
2608     add_cflags   -fPIC
2609     add_asflags  -fPIC
2610 }
2611
2612 enabled pic && enable_pic
2613
2614 check_cc <<EOF || die "Symbol mangling check failed."
2615 int ff_extern;
2616 EOF
2617 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2618 extern_prefix=${sym%%ff_extern*}
2619
2620 check_cc <<EOF && enable inline_asm
2621 void foo(void) { __asm__ volatile ("" ::); }
2622 EOF
2623
2624 _restrict=
2625 for restrict_keyword in restrict __restrict__ __restrict; do
2626     check_cc <<EOF && _restrict=$restrict_keyword && break
2627 void foo(char * $restrict_keyword p);
2628 EOF
2629 done
2630
2631 check_cc <<EOF && enable attribute_packed
2632 struct { int x; } __attribute__((packed)) x;
2633 EOF
2634
2635 check_cc <<EOF && enable attribute_may_alias
2636 union { int x; } __attribute__((may_alias)) x;
2637 EOF
2638
2639 check_cc <<EOF || die "endian test failed"
2640 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2641 EOF
2642 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2643
2644 if enabled alpha; then
2645
2646     check_cflags -mieee
2647
2648 elif enabled arm; then
2649
2650     enabled thumb && check_cflags -mthumb || check_cflags -marm
2651     nogas=die
2652
2653     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2654         enable vfp_args
2655     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2656         case "${cross_prefix:-$cc}" in
2657             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2658             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2659 __asm__ (".eabi_attribute 28, 1");
2660 int main(void) { return 0; }
2661 EOF
2662         esac
2663         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2664     fi
2665
2666     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2667     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2668     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2669     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2670     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2671     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2672     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2673
2674     enabled_all armv6t2 shared !pic && enable_pic
2675
2676 elif enabled mips; then
2677
2678     check_asm loongson '"dmult.g $1, $2, $3"'
2679     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2680
2681 elif enabled ppc; then
2682
2683     enable local_aligned_8 local_aligned_16
2684
2685     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2686     check_asm ibm_asm   '"add 0, 0, 0"'
2687     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2688     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2689
2690     # AltiVec flags: The FSF version of GCC differs from the Apple version
2691     if enabled altivec; then
2692         nogas=warn
2693         check_cflags -maltivec -mabi=altivec &&
2694         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2695         check_cflags -faltivec
2696
2697         # check if our compiler supports Motorola AltiVec C API
2698         check_cc <<EOF || disable altivec
2699 $inc_altivec_h
2700 int main(void) {
2701     vector signed int v1, v2, v3;
2702     v1 = vec_add(v2,v3);
2703     return 0;
2704 }
2705 EOF
2706
2707         # check if our compiler supports braces for vector declarations
2708         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2709 $inc_altivec_h
2710 int main (void) { (vector int) {1}; return 0; }
2711 EOF
2712     fi
2713
2714 elif enabled sparc; then
2715
2716     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2717         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2718
2719 elif enabled x86; then
2720
2721     enable local_aligned_8 local_aligned_16
2722
2723     # check whether EBP is available on x86
2724     # As 'i' is stored on the stack, this program will crash
2725     # if the base pointer is used to access it because the
2726     # base pointer is cleared in the inline assembly code.
2727     check_exec_crash <<EOF && enable ebp_available
2728     volatile int i=0;
2729     __asm__ volatile (
2730         "xorl %%ebp, %%ebp"
2731     ::: "%ebp");
2732     return i;
2733 EOF
2734
2735     # check whether EBX is available on x86
2736     check_asm ebx_available '""::"b"(0)' &&
2737         check_asm ebx_available '"":::"%ebx"'
2738
2739     # check whether xmm clobbers are supported
2740     check_asm xmm_clobbers '"":::"%xmm0"'
2741
2742     # check whether binutils is new enough to compile SSSE3/MMX2
2743     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2744     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2745
2746     check_asm bswap '"bswap %%eax" ::: "%eax"'
2747
2748     if ! disabled_any asm mmx yasm; then
2749         if check_cmd $yasmexe --version; then
2750             enabled x86_64 && yasm_extra="-m amd64"
2751             yasm_debug="-g dwarf2"
2752         elif check_cmd nasm -v; then
2753             yasmexe=nasm
2754             yasm_debug="-g -F dwarf"
2755             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2756         fi
2757
2758         YASMFLAGS="-f $objformat $yasm_extra"
2759         enabled pic               && append YASMFLAGS "-DPIC"
2760         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2761         case "$objformat" in
2762             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2763         esac
2764
2765         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2766             die "yasm not found, use --disable-yasm for a crippled build"
2767         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2768     fi
2769
2770     case "$cpu" in
2771         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2772             disable fast_clz
2773         ;;
2774     esac
2775
2776 fi
2777
2778 if enabled asm; then
2779     as=${gas:=$as}
2780     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2781         $nogas "GNU assembler not found, install gas-preprocessor"
2782 fi
2783
2784 check_ldflags -Wl,--as-needed
2785
2786 if check_func dlopen; then
2787     ldl=
2788 elif check_func dlopen -ldl; then
2789     ldl=-ldl
2790 fi
2791
2792 if enabled network; then
2793     check_type "sys/types.h sys/socket.h" socklen_t
2794     check_type netdb.h "struct addrinfo"
2795     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2796     check_type netinet/in.h "struct sockaddr_in6"
2797     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2798     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2799     # Prefer arpa/inet.h over winsock2
2800     if check_header arpa/inet.h ; then
2801         check_func closesocket
2802     elif check_header winsock2.h ; then
2803         check_func_headers winsock2.h closesocket -lws2 && \
2804             network_extralibs="-lws2" || \
2805         { check_func_headers winsock2.h closesocket -lws2_32 && \
2806             network_extralibs="-lws2_32"; }
2807         check_type ws2tcpip.h socklen_t
2808         check_type ws2tcpip.h "struct addrinfo"
2809         check_type ws2tcpip.h "struct ipv6_mreq"
2810         check_type ws2tcpip.h "struct sockaddr_in6"
2811         check_type ws2tcpip.h "struct sockaddr_storage"
2812         check_struct winsock2.h "struct sockaddr" sa_len
2813     else
2814         disable network
2815     fi
2816 fi
2817
2818 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2819 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2820
2821 check_func  fcntl
2822 check_func  fork
2823 check_func  getaddrinfo $network_extralibs
2824 check_func  gethrtime
2825 check_func  getrusage
2826 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2827 check_func  inet_aton $network_extralibs
2828 check_func  isatty
2829 check_func  localtime_r
2830 check_func  ${malloc_prefix}memalign            && enable memalign
2831 check_func  mkstemp
2832 check_func  mmap
2833 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2834 check_func  setrlimit
2835 check_func  strerror_r
2836 check_func  strptime
2837 check_func  strtok_r
2838 check_func_headers conio.h kbhit
2839 check_func_headers io.h setmode
2840 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2841 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2842 check_func_headers windows.h GetProcessTimes
2843 check_func_headers windows.h MapViewOfFile
2844 check_func_headers windows.h VirtualAlloc
2845
2846 check_header dlfcn.h
2847 check_header dxva2api.h
2848 check_header libcrystalhd/libcrystalhd_if.h
2849 check_header malloc.h
2850 check_header poll.h
2851 check_header sys/mman.h
2852 check_header sys/resource.h
2853 check_header sys/select.h
2854 check_header termios.h
2855 check_header vdpau/vdpau.h
2856 check_header vdpau/vdpau_x11.h
2857 check_header X11/extensions/XvMClib.h
2858
2859 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2860
2861 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2862 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2863
2864 # check for some common methods of building with pthread support
2865 # do this before the optional library checks as some of them require pthreads
2866 if ! disabled pthreads && ! enabled w32threads; then
2867     enable pthreads
2868     if check_func pthread_create; then
2869         :
2870     elif check_func pthread_create -pthread; then
2871         add_cflags -pthread
2872         add_extralibs -pthread
2873     elif check_func pthread_create -pthreads; then
2874         add_cflags -pthreads
2875         add_extralibs -pthreads
2876     elif check_func pthread_create -lpthreadGC2; then
2877         add_extralibs -lpthreadGC2
2878     elif ! check_lib pthread.h pthread_create -lpthread; then
2879         disable pthreads
2880     fi
2881 fi
2882
2883 for thread in $THREADS_LIST; do
2884     if enabled $thread; then
2885         test -n "$thread_type" &&
2886             die "ERROR: Only one thread type must be selected." ||
2887             thread_type="$thread"
2888     fi
2889 done
2890
2891 check_lib math.h sin -lm && LIBM="-lm"
2892 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2893 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2894
2895 check_mathfunc exp2
2896 check_mathfunc exp2f
2897 check_mathfunc llrint
2898 check_mathfunc llrintf
2899 check_mathfunc log2
2900 check_mathfunc log2f
2901 check_mathfunc lrint
2902 check_mathfunc lrintf
2903 check_mathfunc round
2904 check_mathfunc roundf
2905 check_mathfunc trunc
2906 check_mathfunc truncf
2907
2908 # these are off by default, so fail if requested and not available
2909 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2910 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2911 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2912 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2913 enabled libdirac   && require_pkg_config dirac                          \
2914     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2915     "dirac_decoder_init dirac_encoder_init"
2916 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2917 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2918 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2919 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2920 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2921 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2922 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2923 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2924 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2925 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2926 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2927 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2928 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2929 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2930 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2931 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2932 enabled libvpx     && {
2933     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2934                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2935     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2936                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2937 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2938                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2939                         die "ERROR: libx264 version must be >= 0.115."; }
2940 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2941 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2942 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2943                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2944                         die "ERROR: openal not found"; } &&
2945                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2946                         die "ERROR: openal version must be 1.1 or compatible"; }
2947 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2948
2949 SDL_CONFIG="${cross_prefix}sdl-config"
2950 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2951     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2952     enable sdl &&
2953     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2954 else
2955   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2956     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2957     sdl_libs=$("${SDL_CONFIG}" --libs)
2958     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2959     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2960     enable sdl &&
2961     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2962   fi
2963 fi
2964 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2965
2966 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2967
2968 check_header linux/fb.h
2969 check_header linux/videodev.h
2970 check_header linux/videodev2.h
2971 check_header sys/videoio.h
2972
2973 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2974 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2975 # w32api 3.12 had it defined wrong
2976 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2977
2978 check_type "dshow.h" IBaseFilter
2979
2980 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2981 { check_header dev/bktr/ioctl_meteor.h &&
2982   check_header dev/bktr/ioctl_bt848.h; } ||
2983 { check_header machine/ioctl_meteor.h &&
2984   check_header machine/ioctl_bt848.h; } ||
2985 { check_header dev/video/meteor/ioctl_meteor.h &&
2986   check_header dev/video/bktr/ioctl_bt848.h; } ||
2987 check_header dev/ic/bt8xx.h
2988
2989 check_header sndio.h
2990 if check_struct sys/soundcard.h audio_buf_info bytes; then
2991     enable_safe sys/soundcard.h
2992 else
2993     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2994     #include <sys/soundcard.h>
2995     audio_buf_info abc;
2996 EOF
2997 fi
2998 check_header soundcard.h
2999
3000 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3001
3002 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3003
3004 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3005
3006 enabled x11grab                         &&
3007 check_header X11/Xlib.h                 &&
3008 check_header X11/extensions/XShm.h      &&
3009 check_header X11/extensions/Xfixes.h    &&
3010 check_func XOpenDisplay -lX11           &&
3011 check_func XShmCreateImage -lX11 -lXext &&
3012 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3013
3014 if ! disabled vaapi; then
3015     check_lib va/va.h vaInitialize -lva && {
3016         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3017         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3018     } || disable vaapi
3019 fi
3020
3021 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3022 check_cpp_condition \
3023     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3024     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3025       disable vdpau; }
3026 fi
3027
3028 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3029
3030 # add some useful compiler flags if supported
3031 check_cflags -Wdeclaration-after-statement
3032 check_cflags -Wall
3033 check_cflags -Wno-parentheses
3034 check_cflags -Wno-switch
3035 check_cflags -Wno-format-zero-length
3036 check_cflags -Wdisabled-optimization
3037 check_cflags -Wpointer-arith
3038 check_cflags -Wredundant-decls
3039 check_cflags -Wno-pointer-sign
3040 check_cflags -Wcast-qual
3041 check_cflags -Wwrite-strings
3042 check_cflags -Wtype-limits
3043 check_cflags -Wundef
3044 check_cflags -Wmissing-prototypes
3045 check_cflags -Wno-pointer-to-int-cast
3046 enabled extra_warnings && check_cflags -Winline
3047
3048 # add some linker flags
3049 check_ldflags -Wl,--warn-common
3050 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3051 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3052
3053 echo "X{};" > $TMPV
3054 if test_ldflags -Wl,--version-script,$TMPV; then
3055     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3056     check_cc <<EOF && enable symver_asm_label
3057 void ff_foo(void) __asm__ ("av_foo@VERSION");
3058 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3059 EOF
3060     check_cc <<EOF && enable symver_gnu_asm
3061 __asm__(".symver ff_foo,av_foo@VERSION");
3062 void ff_foo(void) {}
3063 EOF
3064 fi
3065
3066 if [ -n "$optflags" ]; then
3067     add_cflags $optflags
3068 elif enabled small; then
3069     add_cflags $size_cflags
3070 elif enabled optimizations; then
3071     add_cflags $speed_cflags
3072 else
3073     add_cflags $noopt_cflags
3074 fi
3075 check_cflags -fno-math-errno
3076 check_cflags -fno-signed-zeros
3077
3078 if enabled icc; then
3079     # Just warnings, no remarks
3080     check_cflags -w1
3081     # -wd: Disable following warnings
3082     # 144, 167, 556: -Wno-pointer-sign
3083     # 1292: attribute "foo" ignored
3084     # 10006: ignoring unknown option -fno-signed-zeros
3085     # 10148: ignoring unknown option -Wno-parentheses
3086     # 10156: ignoring option '-W'; no argument required
3087     check_cflags -wd144,167,556,1292,10006,10148,10156
3088     # 11030: Warning unknown option --as-needed
3089     # 10156: ignoring option '-export'; no argument required
3090     check_ldflags -wd10156,11030
3091     # Allow to compile with optimizations
3092     check_ldflags -march=$cpu
3093     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3094     enable ebp_available
3095     if enabled x86_32; then
3096         test ${icc_version%%.*} -ge 11 && \
3097             check_cflags -falign-stack=maintain-16-byte || \
3098             disable aligned_stack
3099     fi
3100 elif enabled ccc; then
3101     # disable some annoying warnings
3102     add_cflags -msg_disable cvtu32to64
3103     add_cflags -msg_disable embedcomment
3104     add_cflags -msg_disable needconstext
3105     add_cflags -msg_disable nomainieee
3106     add_cflags -msg_disable ptrmismatch1
3107     add_cflags -msg_disable unreachcode
3108 elif enabled gcc; then
3109     check_cflags -fno-tree-vectorize
3110     check_cflags -Werror=implicit-function-declaration
3111     check_cflags -Werror=missing-prototypes
3112 elif enabled llvm_gcc; then
3113     check_cflags -mllvm -stack-alignment=16
3114 elif enabled clang; then
3115     check_cflags -mllvm -stack-alignment=16
3116     check_cflags -Qunused-arguments
3117 elif enabled armcc; then
3118     # 2523: use of inline assembler is deprecated
3119     add_cflags -W${armcc_opt},--diag_suppress=2523
3120     add_cflags -W${armcc_opt},--diag_suppress=1207
3121     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3122     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3123     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3124     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3125 elif enabled tms470; then
3126     add_cflags -pds=824 -pds=837
3127 elif enabled pathscale; then
3128     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3129 fi
3130
3131 enabled_any $THREADS_LIST      && enable threads
3132
3133 check_deps $CONFIG_LIST       \
3134            $CONFIG_EXTRA      \
3135            $HAVE_LIST         \
3136            $DECODER_LIST      \
3137            $ENCODER_LIST      \
3138            $HWACCEL_LIST      \
3139            $PARSER_LIST       \
3140            $BSF_LIST          \
3141            $DEMUXER_LIST      \
3142            $MUXER_LIST        \
3143            $FILTER_LIST       \
3144            $INDEV_LIST        \
3145            $OUTDEV_LIST       \
3146            $PROTOCOL_LIST     \
3147            $ACODEC_TESTS      \
3148            $VCODEC_TESTS      \
3149            $LAVF_TESTS        \
3150            $LAVFI_TESTS       \
3151            $SEEK_TESTS        \
3152
3153 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3154
3155 if test $target_os == "haiku"; then
3156     disable memalign
3157     disable posix_memalign
3158 fi
3159
3160 ! enabled_any memalign posix_memalign malloc_aligned &&
3161     enabled_any $need_memalign && enable memalign_hack
3162
3163 echo "install prefix            $prefix"
3164 echo "source path               $source_path"
3165 echo "C compiler                $cc"
3166 echo "ARCH                      $arch ($cpu)"
3167 if test "$build_suffix" != ""; then
3168     echo "build suffix              $build_suffix"
3169 fi
3170 if test "$extra_version" != ""; then
3171     echo "version string suffix     $extra_version"
3172 fi
3173 echo "big-endian                ${bigendian-no}"
3174 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3175 if enabled x86; then
3176     echo "${yasmexe}                      ${yasm-no}"
3177     echo "MMX enabled               ${mmx-no}"
3178     echo "MMX2 enabled              ${mmx2-no}"
3179     echo "3DNow! enabled            ${amd3dnow-no}"
3180     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3181     echo "SSE enabled               ${sse-no}"
3182     echo "SSSE3 enabled             ${ssse3-no}"
3183     echo "AVX enabled               ${avx-no}"
3184     echo "CMOV enabled              ${cmov-no}"
3185     echo "CMOV is fast              ${fast_cmov-no}"
3186     echo "EBX available             ${ebx_available-no}"
3187     echo "EBP available             ${ebp_available-no}"
3188 fi
3189 if enabled arm; then
3190     echo "ARMv5TE enabled           ${armv5te-no}"
3191     echo "ARMv6 enabled             ${armv6-no}"
3192     echo "ARMv6T2 enabled           ${armv6t2-no}"
3193     echo "ARM VFP enabled           ${armvfp-no}"
3194     echo "IWMMXT enabled            ${iwmmxt-no}"
3195     echo "NEON enabled              ${neon-no}"
3196 fi
3197 if enabled mips; then
3198     echo "MMI enabled               ${mmi-no}"
3199 fi
3200 if enabled ppc; then
3201     echo "AltiVec enabled           ${altivec-no}"
3202     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3203     echo "dcbzl available           ${dcbzl-no}"
3204 fi
3205 if enabled sparc; then
3206     echo "VIS enabled               ${vis-no}"
3207 fi
3208 echo "debug symbols             ${debug-no}"
3209 echo "strip symbols             ${stripping-no}"
3210 echo "optimize for size         ${small-no}"
3211 echo "optimizations             ${optimizations-no}"
3212 echo "static                    ${static-no}"
3213 echo "shared                    ${shared-no}"
3214 echo "postprocessing support    ${postproc-no}"
3215 echo "new filter support        ${avfilter-no}"
3216 echo "network support           ${network-no}"
3217 echo "threading support         ${thread_type-no}"
3218 echo "SDL support               ${sdl-no}"
3219 echo "Sun medialib support      ${mlib-no}"
3220 echo "libdxva2 enabled          ${dxva2-no}"
3221 echo "libva enabled             ${vaapi-no}"
3222 echo "libvdpau enabled          ${vdpau-no}"
3223 echo "AVISynth enabled          ${avisynth-no}"
3224 echo "libcelt enabled           ${libcelt-no}"
3225 echo "frei0r enabled            ${frei0r-no}"
3226 echo "libdc1394 support         ${libdc1394-no}"
3227 echo "libdirac enabled          ${libdirac-no}"
3228 echo "libfaac enabled           ${libfaac-no}"
3229 echo "libgsm enabled            ${libgsm-no}"
3230 echo "libmp3lame enabled        ${libmp3lame-no}"
3231 echo "libnut enabled            ${libnut-no}"
3232 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3233 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3234 echo "libopencv support         ${libopencv-no}"
3235 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3236 echo "librtmp enabled           ${librtmp-no}"
3237 echo "libschroedinger enabled   ${libschroedinger-no}"
3238 echo "libspeex enabled          ${libspeex-no}"
3239 echo "libtheora enabled         ${libtheora-no}"
3240 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3241 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3242 echo "libvorbis enabled         ${libvorbis-no}"
3243 echo "libvpx enabled            ${libvpx-no}"
3244 echo "libx264 enabled           ${libx264-no}"
3245 echo "libxavs enabled           ${libxavs-no}"
3246 echo "libxvid enabled           ${libxvid-no}"
3247 echo "openal enabled            ${openal-no}"
3248 echo "zlib enabled              ${zlib-no}"
3249 echo "bzlib enabled             ${bzlib-no}"
3250 echo
3251
3252 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3253     echo "Enabled ${type}s:"
3254     eval list=\$$(toupper $type)_LIST
3255     print_enabled '_*' $list | sort | pr -r -3 -t
3256     echo
3257 done
3258
3259 license="LGPL version 2.1 or later"
3260 if enabled nonfree; then
3261     license="nonfree and unredistributable"
3262 elif enabled gplv3; then
3263     license="GPL version 3 or later"
3264 elif enabled lgplv3; then
3265     license="LGPL version 3 or later"
3266 elif enabled gpl; then
3267     license="GPL version 2 or later"
3268 fi
3269
3270 echo "License: $license"
3271
3272 echo "Creating config.mak and config.h..."
3273
3274 test -e Makefile || $ln_s "$source_path/Makefile" .
3275
3276 enabled stripping || strip="echo skipping strip"
3277
3278 config_files="$TMPH config.mak"
3279
3280 cat > config.mak <<EOF
3281 # Automatically generated by configure - do not modify!
3282 ifndef FFMPEG_CONFIG_MAK
3283 FFMPEG_CONFIG_MAK=1
3284 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3285 prefix=$prefix
3286 LIBDIR=\$(DESTDIR)$libdir
3287 SHLIBDIR=\$(DESTDIR)$shlibdir
3288 INCDIR=\$(DESTDIR)$incdir
3289 BINDIR=\$(DESTDIR)$bindir
3290 DATADIR=\$(DESTDIR)$datadir
3291 MANDIR=\$(DESTDIR)$mandir
3292 SRC_PATH=$source_path
3293 ifndef MAIN_MAKEFILE
3294 SRC_PATH:=\$(SRC_PATH:.%=..%)
3295 endif
3296 CC_IDENT=$cc_ident
3297 ARCH=$arch
3298 CC=$cc
3299 AS=$as
3300 LD=$ld
3301 DEPCC=$dep_cc
3302 YASM=$yasmexe
3303 YASMDEP=$yasmexe
3304 AR=$ar
3305 RANLIB=$ranlib
3306 CP=cp -p
3307 LN_S=$ln_s
3308 STRIP=$strip
3309 CPPFLAGS=$CPPFLAGS
3310 CFLAGS=$CFLAGS
3311 ASFLAGS=$ASFLAGS
3312 AS_O=$CC_O
3313 CC_O=$CC_O
3314 LDFLAGS=$LDFLAGS
3315 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3316 SHFLAGS=$SHFLAGS
3317 YASMFLAGS=$YASMFLAGS
3318 BUILDSUF=$build_suffix
3319 FULLNAME=$FULLNAME
3320 LIBPREF=$LIBPREF
3321 LIBSUF=$LIBSUF
3322 LIBNAME=$LIBNAME
3323 SLIBPREF=$SLIBPREF
3324 SLIBSUF=$SLIBSUF
3325 EXESUF=$EXESUF
3326 EXTRA_VERSION=$extra_version
3327 DEPFLAGS=$DEPFLAGS
3328 CCDEP=$CCDEP
3329 ASDEP=$ASDEP
3330 CC_DEPFLAGS=$CC_DEPFLAGS
3331 AS_DEPFLAGS=$AS_DEPFLAGS
3332 HOSTCC=$host_cc
3333 HOSTCFLAGS=$host_cflags
3334 HOSTEXESUF=$HOSTEXESUF
3335 HOSTLDFLAGS=$host_ldflags
3336 HOSTLIBS=$host_libs
3337 TARGET_EXEC=$target_exec
3338 TARGET_PATH=$target_path
3339 SDL_LIBS=$sdl_libs
3340 SDL_CFLAGS=$sdl_cflags
3341 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3342 EXTRALIBS=$extralibs
3343 INSTALL=$install
3344 LIBTARGET=${LIBTARGET}
3345 SLIBNAME=${SLIBNAME}
3346 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3347 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3348 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3349 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3350 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3351 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3352 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3353 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3354 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3355 EOF
3356
3357 get_version(){
3358     name=$1
3359     file=$source_path/$2
3360     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3361     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3362     lcname=$(tolower $name)
3363     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3364     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3365 }
3366
3367 get_version LIBSWSCALE  libswscale/swscale.h
3368 get_version LIBPOSTPROC libpostproc/postprocess.h
3369 get_version LIBAVCODEC  libavcodec/version.h
3370 get_version LIBAVDEVICE libavdevice/avdevice.h
3371 get_version LIBAVFORMAT libavformat/version.h
3372 get_version LIBAVUTIL   libavutil/avutil.h
3373 get_version LIBAVFILTER libavfilter/avfilter.h
3374
3375 cat > $TMPH <<EOF
3376 /* Automatically generated by configure - do not modify! */
3377 #ifndef FFMPEG_CONFIG_H
3378 #define FFMPEG_CONFIG_H
3379 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3380 #define FFMPEG_LICENSE "$(c_escape $license)"
3381 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3382 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3383 #define CC_TYPE "$cc_type"
3384 #define CC_VERSION $cc_version
3385 #define restrict $_restrict
3386 #define EXTERN_PREFIX "${extern_prefix}"
3387 #define EXTERN_ASM ${extern_prefix}
3388 #define SLIBSUF "$SLIBSUF"
3389 EOF
3390
3391 test -n "$malloc_prefix" &&
3392     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3393
3394 if enabled small || disabled optimizations; then
3395     echo "#undef  av_always_inline"  >> $TMPH
3396     if enabled small; then
3397         echo "#define av_always_inline inline"  >> $TMPH
3398     else
3399         echo "#define av_always_inline av_unused"  >> $TMPH
3400     fi
3401 fi
3402
3403 if enabled yasm; then
3404     append config_files $TMPASM
3405     printf '' >$TMPASM
3406 fi
3407
3408 print_config ARCH_   "$config_files" $ARCH_LIST
3409 print_config HAVE_   "$config_files" $HAVE_LIST
3410 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3411                                      $CONFIG_EXTRA      \
3412                                      $DECODER_LIST      \
3413                                      $ENCODER_LIST      \
3414                                      $HWACCEL_LIST      \
3415                                      $PARSER_LIST       \
3416                                      $BSF_LIST          \
3417                                      $DEMUXER_LIST      \
3418                                      $MUXER_LIST        \
3419                                      $FILTER_LIST       \
3420                                      $PROTOCOL_LIST     \
3421                                      $INDEV_LIST        \
3422                                      $OUTDEV_LIST       \
3423
3424 cat >>config.mak <<EOF
3425 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3426 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3427 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3428 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3429 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3430 EOF
3431
3432 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3433 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3434
3435 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3436 cp_if_changed $TMPH config.h
3437 touch .config
3438
3439 enabled yasm && cp_if_changed $TMPASM config.asm
3440
3441 cat > $TMPH <<EOF
3442 /* Generated by ffconf */
3443 #ifndef AVUTIL_AVCONFIG_H
3444 #define AVUTIL_AVCONFIG_H
3445 EOF
3446
3447 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3448
3449 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3450
3451 cp_if_changed $TMPH libavutil/avconfig.h
3452
3453 test -n "$WARNINGS" && printf "\n$WARNINGS"
3454
3455 # build pkg-config files
3456
3457 pkgconfig_generate(){
3458 name=$1
3459 shortname=${name#lib}${build_suffix}
3460 comment=$2
3461 version=$3
3462 libs=$4
3463 requires=$5
3464 enabled ${name#lib} || return 0
3465 mkdir -p $name
3466 cat <<EOF > $name/$name.pc
3467 prefix=$prefix
3468 exec_prefix=\${prefix}
3469 libdir=$libdir
3470 includedir=$incdir
3471
3472 Name: $name
3473 Description: $comment
3474 Version: $version
3475 Requires: $(enabled shared || echo $requires)
3476 Requires.private: $(enabled shared && echo $requires)
3477 Conflicts:
3478 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3479 Libs.private: $(enabled shared && echo $libs)
3480 Cflags: -I\${includedir}
3481 EOF
3482 cat <<EOF > $name/$name-uninstalled.pc
3483 prefix=
3484 exec_prefix=
3485 libdir=\${pcfiledir}
3486 includedir=${source_path}
3487
3488 Name: $name
3489 Description: $comment
3490 Version: $version
3491 Requires: $requires
3492 Conflicts:
3493 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3494 Cflags: -I\${includedir}
3495 EOF
3496 }
3497
3498 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3499 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3500 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3501 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3502 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3503 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3504 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"