pulse: introduce pulseaudio input
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
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/avconv]
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-avplay         disable avplay build
86   --disable-avprobe        disable avprobe build
87   --disable-avserver       disable avserver 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
111   --enable-vdpau           enable VDPAU code
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-frei0r          enable frei0r video filtering
165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167   --enable-libopencv       enable video filtering via libopencv [no]
168   --enable-libcdio         enable audio CD grabbing with libcdio
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-mlib            enable Sun medialib [no]
193   --enable-zlib            enable zlib [autodetect]
194
195 Advanced options (experts only):
196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
197   --enable-cross-compile   assume a cross-compiler is used
198   --sysroot=PATH           root of cross-build tree
199   --sysinclude=PATH        location of cross-build system headers
200   --target-os=OS           compiler targets OS [$target_os]
201   --target-exec=CMD        command to run executables on target
202   --target-path=DIR        path to view of build directory on target
203   --nm=NM                  use nm tool
204   --ar=AR                  use archive tool AR [$ar_default]
205   --as=AS                  use assembler AS [$as_default]
206   --cc=CC                  use C compiler CC [$cc_default]
207   --ld=LD                  use linker LD
208   --host-cc=HOSTCC         use host C compiler HOSTCC
209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
211   --host-libs=HLIBS        use libs HLIBS when linking for host
212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
215   --extra-version=STRING   version string suffix []
216   --build-suffix=SUFFIX    library name suffix []
217   --arch=ARCH              select architecture [$arch]
218   --cpu=CPU                select the minimum required CPU (affects
219                            instruction selection, may crash on older CPUs)
220   --disable-asm            disable all assembler optimizations
221   --disable-altivec        disable AltiVec optimizations
222   --disable-amd3dnow       disable 3DNow! optimizations
223   --disable-amd3dnowext    disable 3DNow! extended optimizations
224   --disable-mmx            disable MMX optimizations
225   --disable-mmx2           disable MMX2 optimizations
226   --disable-sse            disable SSE optimizations
227   --disable-ssse3          disable SSSE3 optimizations
228   --disable-avx            disable AVX optimizations
229   --disable-armv5te        disable armv5te optimizations
230   --disable-armv6          disable armv6 optimizations
231   --disable-armv6t2        disable armv6t2 optimizations
232   --disable-armvfp         disable ARM VFP optimizations
233   --disable-iwmmxt         disable iwmmxt optimizations
234   --disable-mmi            disable MMI optimizations
235   --disable-neon           disable neon optimizations
236   --disable-vis            disable VIS optimizations
237   --disable-yasm           disable use of yasm assembler
238   --enable-pic             build position-independent code
239   --malloc-prefix=PFX      prefix malloc and related names with PFX
240   --enable-sram            allow use of on-chip SRAM
241   --disable-symver         disable symbol versioning
242   --optflags               override optimization-related compiler flags
243
244 Developer options (useful when working on Libav itself):
245   --disable-debug          disable debugging symbols
246   --enable-debug=LEVEL     set the debug level [$debuglevel]
247   --disable-optimizations  disable compiler optimizations
248   --enable-extra-warnings  enable more compiler warnings
249   --samples=PATH           location of test samples for FATE, if not set use
250                            \$FATE_SAMPLES at make invocation time.
251
252 NOTE: Object files are built at the place where configure is launched.
253 EOF
254   exit 0
255 }
256
257 quotes='""'
258
259 log(){
260     echo "$@" >> $logfile
261 }
262
263 log_file(){
264     log BEGIN $1
265     pr -n -t $1 >> $logfile
266     log END $1
267 }
268
269 echolog(){
270     log "$@"
271     echo "$@"
272 }
273
274 warn(){
275     log "WARNING: $*"
276     WARNINGS="${WARNINGS}WARNING: $*\n"
277 }
278
279 die(){
280     echolog "$@"
281     cat <<EOF
282
283 If you think configure made a mistake, make sure you are using the latest
284 version from Git.  If the latest version fails, report the problem to the
285 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
286 EOF
287     if disabled logging; then
288         cat <<EOF
289 Rerun configure with logging enabled (do not use --disable-logging), and
290 include the log this produces with your report.
291 EOF
292     else
293 cat <<EOF
294 Include the log file "$logfile" produced by configure as this will help
295 solving the problem.
296 EOF
297     fi
298     exit 1
299 }
300
301 # Avoid locale weirdness, besides we really just want to translate ASCII.
302 toupper(){
303     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
304 }
305
306 tolower(){
307     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
308 }
309
310 c_escape(){
311     echo "$*" | sed 's/["\\]/\\\0/g'
312 }
313
314 sh_quote(){
315     v=$(echo "$1" | sed "s/'/'\\\\''/g")
316     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
317     echo "$v"
318 }
319
320 cleanws(){
321     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
322 }
323
324 filter(){
325     pat=$1
326     shift
327     for v; do
328         eval "case $v in $pat) echo $v ;; esac"
329     done
330 }
331
332 filter_out(){
333     pat=$1
334     shift
335     for v; do
336         eval "case $v in $pat) ;; *) echo $v ;; esac"
337     done
338 }
339
340 map(){
341     m=$1
342     shift
343     for v; do eval $m; done
344 }
345
346 set_all(){
347     value=$1
348     shift
349     for var in $*; do
350         eval $var=$value
351     done
352 }
353
354 set_weak(){
355     value=$1
356     shift
357     for var; do
358         eval : \${$var:=$value}
359     done
360 }
361
362 set_safe(){
363     var=$1
364     shift
365     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
366 }
367
368 get_safe(){
369     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
370 }
371
372 pushvar(){
373     for var in $*; do
374         eval level=\${${var}_level:=0}
375         eval ${var}_${level}="\$$var"
376         eval ${var}_level=$(($level+1))
377     done
378 }
379
380 popvar(){
381     for var in $*; do
382         eval level=\${${var}_level:-0}
383         test $level = 0 && continue
384         eval level=$(($level-1))
385         eval $var="\${${var}_${level}}"
386         eval ${var}_level=$level
387         eval unset ${var}_${level}
388     done
389 }
390
391 enable(){
392     set_all yes $*
393 }
394
395 disable(){
396     set_all no $*
397 }
398
399 enable_weak(){
400     set_weak yes $*
401 }
402
403 disable_weak(){
404     set_weak no $*
405 }
406
407 enable_safe(){
408     for var; do
409         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
410     done
411 }
412
413 disable_safe(){
414     for var; do
415         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
416     done
417 }
418
419 do_enable_deep(){
420     for var; do
421         enabled $var && continue
422         eval sel="\$${var}_select"
423         eval sgs="\$${var}_suggest"
424         pushvar var sgs
425         enable_deep $sel
426         popvar sgs
427         enable_deep_weak $sgs
428         popvar var
429     done
430 }
431
432 enable_deep(){
433     do_enable_deep $*
434     enable $*
435 }
436
437 enable_deep_weak(){
438     do_enable_deep $*
439     enable_weak $*
440 }
441
442 enabled(){
443     test "${1#!}" = "$1" && op== || op=!=
444     eval test "x\$${1#!}" $op "xyes"
445 }
446
447 disabled(){
448     test "${1#!}" = "$1" && op== || op=!=
449     eval test "x\$${1#!}" $op "xno"
450 }
451
452 enabled_all(){
453     for opt; do
454         enabled $opt || return 1
455     done
456 }
457
458 disabled_all(){
459     for opt; do
460         disabled $opt || return 1
461     done
462 }
463
464 enabled_any(){
465     for opt; do
466         enabled $opt && return 0
467     done
468 }
469
470 disabled_any(){
471     for opt; do
472         disabled $opt && return 0
473     done
474     return 1
475 }
476
477 set_default(){
478     for opt; do
479         eval : \${$opt:=\$${opt}_default}
480     done
481 }
482
483 is_in(){
484     value=$1
485     shift
486     for var in $*; do
487         [ $var = $value ] && return 0
488     done
489     return 1
490 }
491
492 check_deps(){
493     for cfg; do
494         cfg="${cfg#!}"
495         enabled ${cfg}_checking && die "Circular dependency for $cfg."
496         disabled ${cfg}_checking && continue
497         enable ${cfg}_checking
498
499         eval dep_all="\$${cfg}_deps"
500         eval dep_any="\$${cfg}_deps_any"
501         eval dep_sel="\$${cfg}_select"
502         eval dep_sgs="\$${cfg}_suggest"
503         eval dep_ifa="\$${cfg}_if"
504         eval dep_ifn="\$${cfg}_if_any"
505
506         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
507         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
508         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
509
510         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
511         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
512         enabled_all  $dep_all || disable $cfg
513         enabled_any  $dep_any || disable $cfg
514         disabled_any $dep_sel && disable $cfg
515
516         if enabled $cfg; then
517             eval dep_extralibs="\$${cfg}_extralibs"
518             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
519             enable_deep $dep_sel
520             enable_deep_weak $dep_sgs
521         fi
522
523         disable ${cfg}_checking
524     done
525 }
526
527 print_config_h(){
528     enabled $1 && v=1 || v=0
529     echo "#define $2 $v"
530 }
531
532 print_config_mak(){
533     enabled $1 && v= || v=!
534     echo "$v$2=yes"
535 }
536
537 print_config_asm(){
538     enabled $1 && echo "%define $2"
539 }
540
541 print_config(){
542     pfx=$1
543     files=$2
544     shift 2
545     for cfg; do
546         ucname="$(toupper $cfg)"
547         for f in $files; do
548             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
549         done
550     done
551 }
552
553 print_enabled(){
554     test "$1" = -n && end=" " && shift || end="\n"
555     suf=$1
556     shift
557     for v; do
558         enabled $v && printf "%s$end" ${v%$suf};
559     done
560 }
561
562 append(){
563     var=$1
564     shift
565     eval "$var=\"\$$var $*\""
566 }
567
568 prepend(){
569     var=$1
570     shift
571     eval "$var=\"$* \$$var\""
572 }
573
574 add_cppflags(){
575     append CPPFLAGS $($filter_cppflags "$@")
576 }
577
578 add_cflags(){
579     append CFLAGS $($filter_cflags "$@")
580 }
581
582 add_asflags(){
583     append ASFLAGS $($filter_asflags "$@")
584 }
585
586 add_ldflags(){
587     append LDFLAGS "$@"
588 }
589
590 add_extralibs(){
591     prepend extralibs "$@"
592 }
593
594 check_cmd(){
595     log "$@"
596     "$@" >> $logfile 2>&1
597 }
598
599 check_cc(){
600     log check_cc "$@"
601     cat > $TMPC
602     log_file $TMPC
603     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
604 }
605
606 check_cpp(){
607     log check_cpp "$@"
608     cat > $TMPC
609     log_file $TMPC
610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
611 }
612
613 check_as(){
614     log check_as "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
618 }
619
620 check_asm(){
621     log check_asm "$@"
622     name="$1"
623     code="$2"
624     shift 2
625     disable $name
626     check_as "$@" <<EOF && enable $name
627 void foo(void){ __asm__ volatile($code); }
628 EOF
629 }
630
631 check_yasm(){
632     log check_yasm "$@"
633     echo "$1" > $TMPS
634     log_file $TMPS
635     shift 1
636     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
637 }
638
639 check_ld(){
640     log check_ld "$@"
641     flags=''
642     libs=''
643     for f; do
644         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
645     done
646     check_cc $($filter_cflags $flags) || return
647     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
648 }
649
650 check_cppflags(){
651     log check_cppflags "$@"
652     set -- $($filter_cppflags "$@")
653     check_cc "$@" <<EOF && append CPPFLAGS "$@"
654 int x;
655 EOF
656 }
657
658 check_cflags(){
659     log check_cflags "$@"
660     set -- $($filter_cflags "$@")
661     check_cc "$@" <<EOF && append CFLAGS "$@"
662 int x;
663 EOF
664 }
665
666 test_ldflags(){
667     log test_ldflags "$@"
668     check_ld "$@" <<EOF
669 int main(void){ return 0; }
670 EOF
671 }
672
673 check_ldflags(){
674     log check_ldflags "$@"
675     test_ldflags "$@" && add_ldflags "$@"
676 }
677
678 check_header(){
679     log check_header "$@"
680     header=$1
681     shift
682     disable_safe $header
683     check_cpp "$@" <<EOF && enable_safe $header
684 #include <$header>
685 int x;
686 EOF
687 }
688
689 check_func(){
690     log check_func "$@"
691     func=$1
692     shift
693     disable $func
694     check_ld "$@" <<EOF && enable $func
695 extern int $func();
696 int main(void){ $func(); }
697 EOF
698 }
699
700 check_mathfunc(){
701     log check_mathfunc "$@"
702     func=$1
703     shift
704     disable $func
705     check_ld "$@" <<EOF && enable $func
706 #include <math.h>
707 float foo(float f) { return $func(f); }
708 int main(void){ return 0; }
709 EOF
710 }
711
712 check_func_headers(){
713     log check_func_headers "$@"
714     headers=$1
715     funcs=$2
716     shift 2
717     {
718         for hdr in $headers; do
719             echo "#include <$hdr>"
720         done
721         for func in $funcs; do
722             echo "long check_$func(void) { return (long) $func; }"
723         done
724         echo "int main(void) { return 0; }"
725     } | check_ld "$@" && enable $funcs && enable_safe $headers
726 }
727
728 check_cpp_condition(){
729     log check_cpp_condition "$@"
730     header=$1
731     condition=$2
732     shift 2
733     check_cpp $($filter_cppflags "$@") <<EOF
734 #include <$header>
735 #if !($condition)
736 #error "unsatisfied condition: $condition"
737 #endif
738 EOF
739 }
740
741 check_lib(){
742     log check_lib "$@"
743     header="$1"
744     func="$2"
745     shift 2
746     check_header $header && check_func $func "$@" && add_extralibs "$@"
747 }
748
749 check_lib2(){
750     log check_lib2 "$@"
751     headers="$1"
752     funcs="$2"
753     shift 2
754     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
755 }
756
757 check_pkg_config(){
758     log check_pkg_config "$@"
759     pkg="$1"
760     headers="$2"
761     funcs="$3"
762     shift 3
763     $pkg_config --exists $pkg || return
764     pkg_cflags=$($pkg_config --cflags $pkg)
765     pkg_libs=$($pkg_config --libs $pkg)
766     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
767         set_safe ${pkg}_cflags $pkg_cflags   &&
768         set_safe ${pkg}_libs   $pkg_libs
769 }
770
771 check_exec(){
772     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
773 }
774
775 check_exec_crash(){
776     code=$(cat)
777
778     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
779     # are safe but may not be available everywhere.  Thus we use
780     # raise(SIGTERM) instead.  The check is run in a subshell so we
781     # can redirect the "Terminated" message from the shell.  SIGBUS
782     # is not defined by standard C so it is used conditionally.
783
784     (check_exec "$@") >> $logfile 2>&1 <<EOF
785 #include <signal.h>
786 static void sighandler(int sig){
787     raise(SIGTERM);
788 }
789 int main(void){
790     signal(SIGILL, sighandler);
791     signal(SIGFPE, sighandler);
792     signal(SIGSEGV, sighandler);
793 #ifdef SIGBUS
794     signal(SIGBUS, sighandler);
795 #endif
796     { $code }
797 }
798 EOF
799 }
800
801 check_type(){
802     log check_type "$@"
803     headers=$1
804     type=$2
805     shift 2
806     disable_safe "$type"
807     incs=""
808     for hdr in $headers; do
809         incs="$incs
810 #include <$hdr>"
811     done
812     check_cc "$@" <<EOF && enable_safe "$type"
813 $incs
814 $type v;
815 EOF
816 }
817
818 check_struct(){
819     log check_type "$@"
820     headers=$1
821     struct=$2
822     member=$3
823     shift 3
824     disable_safe "${struct}_${member}"
825     incs=""
826     for hdr in $headers; do
827         incs="$incs
828 #include <$hdr>"
829     done
830     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
831 $incs
832 const void *p = &(($struct *)0)->$member;
833 EOF
834 }
835
836 require(){
837     name="$1"
838     header="$2"
839     func="$3"
840     shift 3
841     check_lib $header $func "$@" || die "ERROR: $name not found"
842 }
843
844 require2(){
845     name="$1"
846     headers="$2"
847     func="$3"
848     shift 3
849     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
850 }
851
852 require_pkg_config(){
853     pkg="$1"
854     check_pkg_config "$@" || die "ERROR: $pkg not found"
855     add_cflags    $(get_safe ${pkg}_cflags)
856     add_extralibs $(get_safe ${pkg}_libs)
857 }
858
859 check_host_cc(){
860     log check_host_cc "$@"
861     cat > $TMPC
862     log_file $TMPC
863     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
864 }
865
866 check_host_cflags(){
867     log check_host_cflags "$@"
868     check_host_cc "$@" <<EOF && append host_cflags "$@"
869 int x;
870 EOF
871 }
872
873 apply(){
874     file=$1
875     shift
876     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
877 }
878
879 cp_if_changed(){
880     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
881     mkdir -p "$(dirname $2)"
882     cp -f "$1" "$2"
883 }
884
885 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
886 # system-dependent things.
887
888 COMPONENT_LIST="
889     bsfs
890     decoders
891     demuxers
892     encoders
893     filters
894     hwaccels
895     indevs
896     muxers
897     outdevs
898     parsers
899     protocols
900 "
901
902 CONFIG_LIST="
903     $COMPONENT_LIST
904     aandct
905     ac3dsp
906     avcodec
907     avdevice
908     avfilter
909     avformat
910     avisynth
911     bzlib
912     dct
913     doc
914     dwt
915     dxva2
916     fastdiv
917     ffmpeg
918     avconv
919     avplay
920     avprobe
921     avserver
922     fft
923     frei0r
924     golomb
925     gpl
926     gray
927     h264dsp
928     h264pred
929     hardcoded_tables
930     huffman
931     libcdio
932     libdc1394
933     libdirac
934     libfaac
935     libfreetype
936     libgsm
937     libmp3lame
938     libnut
939     libopencore_amrnb
940     libopencore_amrwb
941     libopencv
942     libopenjpeg
943     libpulse
944     librtmp
945     libschroedinger
946     libspeex
947     libtheora
948     libvo_aacenc
949     libvo_amrwbenc
950     libvorbis
951     libvpx
952     libx264
953     libxavs
954     libxvid
955     lpc
956     lsp
957     mdct
958     memalign_hack
959     mlib
960     mpegaudiodsp
961     network
962     nonfree
963     pic
964     postproc
965     rdft
966     rtpdec
967     runtime_cpudetect
968     shared
969     sinewin
970     small
971     sram
972     static
973     swscale
974     swscale_alpha
975     thumb
976     vaapi
977     vdpau
978     version3
979     x11grab
980     zlib
981 "
982
983 THREADS_LIST='
984     pthreads
985     w32threads
986 '
987
988 ARCH_LIST='
989     alpha
990     arm
991     avr32
992     avr32_ap
993     avr32_uc
994     bfin
995     ia64
996     m68k
997     mips
998     mips64
999     parisc
1000     ppc
1001     ppc64
1002     s390
1003     sh4
1004     sparc
1005     sparc64
1006     tomi
1007     x86
1008     x86_32
1009     x86_64
1010 '
1011
1012 ARCH_EXT_LIST='
1013     altivec
1014     amd3dnow
1015     amd3dnowext
1016     armv5te
1017     armv6
1018     armv6t2
1019     armvfp
1020     avx
1021     iwmmxt
1022     mmi
1023     mmx
1024     mmx2
1025     neon
1026     ppc4xx
1027     sse
1028     ssse3
1029     vfpv3
1030     vis
1031 '
1032
1033 HAVE_LIST_PUB='
1034     bigendian
1035     fast_unaligned
1036 '
1037
1038 HAVE_LIST="
1039     $ARCH_EXT_LIST
1040     $HAVE_LIST_PUB
1041     $THREADS_LIST
1042     aligned_stack
1043     alsa_asoundlib_h
1044     altivec_h
1045     arpa_inet_h
1046     asm_mod_y
1047     attribute_may_alias
1048     attribute_packed
1049     bswap
1050     closesocket
1051     cmov
1052     dcbzl
1053     dev_bktr_ioctl_bt848_h
1054     dev_bktr_ioctl_meteor_h
1055     dev_ic_bt8xx_h
1056     dev_video_meteor_ioctl_meteor_h
1057     dev_video_bktr_ioctl_bt848_h
1058     dlfcn_h
1059     dlopen
1060     dos_paths
1061     ebp_available
1062     ebx_available
1063     exp2
1064     exp2f
1065     fast_64bit
1066     fast_clz
1067     fast_cmov
1068     fcntl
1069     fork
1070     getaddrinfo
1071     gethrtime
1072     GetProcessMemoryInfo
1073     GetProcessTimes
1074     getrusage
1075     gnu_as
1076     struct_rusage_ru_maxrss
1077     ibm_asm
1078     inet_aton
1079     inline_asm
1080     isatty
1081     ldbrx
1082     libdc1394_1
1083     libdc1394_2
1084     llrint
1085     llrintf
1086     local_aligned_16
1087     local_aligned_8
1088     localtime_r
1089     log2
1090     log2f
1091     loongson
1092     lrint
1093     lrintf
1094     lzo1x_999_compress
1095     machine_ioctl_bt848_h
1096     machine_ioctl_meteor_h
1097     malloc_h
1098     MapViewOfFile
1099     memalign
1100     mkstemp
1101     mmap
1102     posix_memalign
1103     round
1104     roundf
1105     sdl
1106     sdl_video_size
1107     setmode
1108     sndio_h
1109     socklen_t
1110     soundcard_h
1111     poll_h
1112     setrlimit
1113     strerror_r
1114     strptime
1115     strtok_r
1116     struct_addrinfo
1117     struct_ipv6_mreq
1118     struct_sockaddr_in6
1119     struct_sockaddr_sa_len
1120     struct_sockaddr_storage
1121     symver
1122     symver_gnu_asm
1123     symver_asm_label
1124     sys_mman_h
1125     sys_resource_h
1126     sys_select_h
1127     sys_soundcard_h
1128     sys_videoio_h
1129     threads
1130     trunc
1131     truncf
1132     vfp_args
1133     VirtualAlloc
1134     winsock2_h
1135     xform_asm
1136     xmm_clobbers
1137     yasm
1138 "
1139
1140 # options emitted with CONFIG_ prefix but not available on command line
1141 CONFIG_EXTRA="
1142     avutil
1143     gplv3
1144     lgplv3
1145 "
1146
1147 CMDLINE_SELECT="
1148     $ARCH_EXT_LIST
1149     $CONFIG_LIST
1150     $THREADS_LIST
1151     asm
1152     cross_compile
1153     debug
1154     extra_warnings
1155     logging
1156     optimizations
1157     symver
1158     yasm
1159 "
1160
1161 PATHS_LIST='
1162     bindir
1163     datadir
1164     incdir
1165     libdir
1166     mandir
1167     prefix
1168     shlibdir
1169 '
1170
1171 CMDLINE_SET="
1172     $PATHS_LIST
1173     ar
1174     arch
1175     as
1176     build_suffix
1177     cc
1178     cpu
1179     cross_prefix
1180     dep_cc
1181     extra_version
1182     host_cc
1183     host_cflags
1184     host_ldflags
1185     host_libs
1186     host_os
1187     ld
1188     logfile
1189     malloc_prefix
1190     nm
1191     optflags
1192     pkg_config
1193     samples
1194     sysinclude
1195     sysroot
1196     target_exec
1197     target_os
1198     target_path
1199 "
1200
1201 CMDLINE_APPEND="
1202     extra_cflags
1203 "
1204
1205 # code dependency declarations
1206
1207 # architecture extensions
1208
1209 armv5te_deps="arm"
1210 armv6_deps="arm"
1211 armv6t2_deps="arm"
1212 armvfp_deps="arm"
1213 iwmmxt_deps="arm"
1214 neon_deps="arm"
1215 vfpv3_deps="armvfp"
1216
1217 mmi_deps="mips"
1218
1219 altivec_deps="ppc"
1220 ppc4xx_deps="ppc"
1221
1222 vis_deps="sparc"
1223
1224 x86_64_suggest="cmov fast_cmov"
1225 amd3dnow_deps="mmx"
1226 amd3dnowext_deps="amd3dnow"
1227 mmx_deps="x86"
1228 mmx2_deps="mmx"
1229 sse_deps="mmx"
1230 ssse3_deps="sse"
1231 avx_deps="ssse3"
1232
1233 aligned_stack_if_any="ppc x86"
1234 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1235 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1236 fast_unaligned_if_any="armv6 ppc x86"
1237
1238 need_memalign="altivec neon sse"
1239 inline_asm_deps="!tms470"
1240
1241 symver_if_any="symver_asm_label symver_gnu_asm"
1242
1243 # subsystems
1244 dct_select="rdft"
1245 mdct_select="fft"
1246 rdft_select="fft"
1247 mpegaudiodsp_select="dct"
1248
1249 # decoders / encoders / hardware accelerators
1250 aac_decoder_select="mdct sinewin"
1251 aac_encoder_select="mdct sinewin"
1252 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1253 ac3_decoder_select="mdct ac3dsp ac3_parser"
1254 ac3_encoder_select="mdct ac3dsp"
1255 ac3_fixed_encoder_select="mdct ac3dsp"
1256 alac_encoder_select="lpc"
1257 amrnb_decoder_select="lsp"
1258 amrwb_decoder_select="lsp"
1259 atrac1_decoder_select="mdct sinewin"
1260 atrac3_decoder_select="mdct"
1261 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1262 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1263 cavs_decoder_select="golomb"
1264 cook_decoder_select="mdct sinewin"
1265 cscd_decoder_suggest="zlib"
1266 dca_decoder_select="mdct"
1267 dnxhd_encoder_select="aandct"
1268 dxa_decoder_select="zlib"
1269 eac3_decoder_select="ac3_decoder"
1270 eac3_encoder_select="mdct ac3dsp"
1271 eamad_decoder_select="aandct"
1272 eatgq_decoder_select="aandct"
1273 eatqi_decoder_select="aandct"
1274 ffv1_decoder_select="golomb"
1275 flac_decoder_select="golomb"
1276 flac_encoder_select="golomb lpc"
1277 flashsv_decoder_select="zlib"
1278 flashsv_encoder_select="zlib"
1279 flashsv2_decoder_select="zlib"
1280 flv_decoder_select="h263_decoder"
1281 flv_encoder_select="h263_encoder"
1282 fraps_decoder_select="huffman"
1283 h261_encoder_select="aandct"
1284 h263_decoder_select="h263_parser"
1285 h263_encoder_select="aandct"
1286 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1287 h263i_decoder_select="h263_decoder"
1288 h263p_encoder_select="h263_encoder"
1289 h264_decoder_select="golomb h264dsp h264pred"
1290 h264_dxva2_hwaccel_deps="dxva2api_h"
1291 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1292 h264_vaapi_hwaccel_select="vaapi"
1293 h264_vdpau_decoder_select="vdpau h264_decoder"
1294 imc_decoder_select="fft mdct sinewin"
1295 jpegls_decoder_select="golomb"
1296 jpegls_encoder_select="golomb"
1297 ljpeg_encoder_select="aandct"
1298 loco_decoder_select="golomb"
1299 mjpeg_encoder_select="aandct"
1300 mlp_decoder_select="mlp_parser"
1301 mp1_decoder_select="mpegaudiodsp"
1302 mp2_decoder_select="mpegaudiodsp"
1303 mp3adu_decoder_select="mpegaudiodsp"
1304 mp3_decoder_select="mpegaudiodsp"
1305 mp3on4_decoder_select="mpegaudiodsp"
1306 mp1float_decoder_select="mpegaudiodsp"
1307 mp2float_decoder_select="mpegaudiodsp"
1308 mp3adufloat_decoder_select="mpegaudiodsp"
1309 mp3float_decoder_select="mpegaudiodsp"
1310 mp3on4float_decoder_select="mpegaudiodsp"
1311 mpeg1video_encoder_select="aandct"
1312 mpeg2video_encoder_select="aandct"
1313 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1314 mpeg4_encoder_select="h263_encoder"
1315 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1316 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1317 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1318 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1319 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1320 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1321 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1322 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1323 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1324 msmpeg4v1_decoder_select="h263_decoder"
1325 msmpeg4v1_encoder_select="h263_encoder"
1326 msmpeg4v2_decoder_select="h263_decoder"
1327 msmpeg4v2_encoder_select="h263_encoder"
1328 msmpeg4v3_decoder_select="h263_decoder"
1329 msmpeg4v3_encoder_select="h263_encoder"
1330 nellymoser_decoder_select="mdct sinewin"
1331 nellymoser_encoder_select="mdct sinewin"
1332 png_decoder_select="zlib"
1333 png_encoder_select="zlib"
1334 qcelp_decoder_select="lsp"
1335 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1336 ra_144_encoder_select="lpc"
1337 rv10_decoder_select="h263_decoder"
1338 rv10_encoder_select="h263_encoder"
1339 rv20_decoder_select="h263_decoder"
1340 rv20_encoder_select="h263_encoder"
1341 rv30_decoder_select="golomb h264pred"
1342 rv40_decoder_select="golomb h264pred"
1343 shorten_decoder_select="golomb"
1344 sipr_decoder_select="lsp"
1345 snow_decoder_select="dwt"
1346 snow_encoder_select="aandct dwt"
1347 svq1_encoder_select="aandct"
1348 svq3_decoder_select="golomb h264dsp h264pred"
1349 svq3_decoder_suggest="zlib"
1350 theora_decoder_select="vp3_decoder"
1351 tiff_decoder_suggest="zlib"
1352 tiff_encoder_suggest="zlib"
1353 truehd_decoder_select="mlp_decoder"
1354 tscc_decoder_select="zlib"
1355 twinvq_decoder_select="mdct lsp sinewin"
1356 vc1_decoder_select="h263_decoder"
1357 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1358 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1359 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1360 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1361 vc1image_decoder_select="vc1_decoder"
1362 vorbis_decoder_select="mdct"
1363 vorbis_encoder_select="mdct"
1364 vp6_decoder_select="huffman"
1365 vp6a_decoder_select="vp6_decoder"
1366 vp6f_decoder_select="vp6_decoder"
1367 vp8_decoder_select="h264pred"
1368 wmapro_decoder_select="mdct sinewin"
1369 wmav1_decoder_select="mdct sinewin"
1370 wmav1_encoder_select="mdct sinewin"
1371 wmav2_decoder_select="mdct sinewin"
1372 wmav2_encoder_select="mdct sinewin"
1373 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1374 wmv1_decoder_select="h263_decoder"
1375 wmv1_encoder_select="h263_encoder"
1376 wmv2_decoder_select="h263_decoder"
1377 wmv2_encoder_select="h263_encoder"
1378 wmv3_decoder_select="vc1_decoder"
1379 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1380 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1381 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1382 wmv3image_decoder_select="wmv3_decoder"
1383 zlib_decoder_select="zlib"
1384 zlib_encoder_select="zlib"
1385 zmbv_decoder_select="zlib"
1386 zmbv_encoder_select="zlib"
1387
1388 vaapi_deps="va_va_h"
1389 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1390
1391 # parsers
1392 h264_parser_select="golomb h264dsp h264pred"
1393
1394 # external libraries
1395 libdirac_decoder_deps="libdirac !libschroedinger"
1396 libdirac_encoder_deps="libdirac"
1397 libfaac_encoder_deps="libfaac"
1398 libgsm_decoder_deps="libgsm"
1399 libgsm_encoder_deps="libgsm"
1400 libgsm_ms_decoder_deps="libgsm"
1401 libgsm_ms_encoder_deps="libgsm"
1402 libmp3lame_encoder_deps="libmp3lame"
1403 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1404 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1405 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1406 libopenjpeg_decoder_deps="libopenjpeg"
1407 libschroedinger_decoder_deps="libschroedinger"
1408 libschroedinger_encoder_deps="libschroedinger"
1409 libspeex_decoder_deps="libspeex"
1410 libtheora_encoder_deps="libtheora"
1411 libvo_aacenc_encoder_deps="libvo_aacenc"
1412 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1413 libvorbis_encoder_deps="libvorbis"
1414 libvpx_decoder_deps="libvpx"
1415 libvpx_encoder_deps="libvpx"
1416 libx264_encoder_deps="libx264"
1417 libxavs_encoder_deps="libxavs"
1418 libxvid_encoder_deps="libxvid"
1419
1420 # demuxers / muxers
1421 ac3_demuxer_select="ac3_parser"
1422 asf_stream_muxer_select="asf_muxer"
1423 avisynth_demuxer_deps="avisynth"
1424 dirac_demuxer_select="dirac_parser"
1425 eac3_demuxer_select="ac3_parser"
1426 flac_demuxer_select="flac_parser"
1427 ipod_muxer_select="mov_muxer"
1428 libnut_demuxer_deps="libnut"
1429 libnut_muxer_deps="libnut"
1430 matroska_audio_muxer_select="matroska_muxer"
1431 matroska_demuxer_suggest="zlib bzlib"
1432 mov_demuxer_suggest="zlib"
1433 mp3_demuxer_select="mpegaudio_parser"
1434 mp4_muxer_select="mov_muxer"
1435 mpegtsraw_demuxer_select="mpegts_demuxer"
1436 mxf_d10_muxer_select="mxf_muxer"
1437 ogg_demuxer_select="golomb"
1438 psp_muxer_select="mov_muxer"
1439 rtp_demuxer_select="sdp_demuxer"
1440 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1441 rtsp_demuxer_select="http_protocol rtpdec"
1442 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1443 sap_demuxer_select="sdp_demuxer"
1444 sap_muxer_select="rtp_muxer rtp_protocol"
1445 sdp_demuxer_select="rtpdec"
1446 spdif_muxer_select="aac_parser"
1447 tg2_muxer_select="mov_muxer"
1448 tgp_muxer_select="mov_muxer"
1449 w64_demuxer_deps="wav_demuxer"
1450
1451 # indevs / outdevs
1452 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1453 alsa_outdev_deps="alsa_asoundlib_h"
1454 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1455 dv1394_indev_deps="dv1394 dv_demuxer"
1456 fbdev_indev_deps="linux_fb_h"
1457 jack_indev_deps="jack_jack_h"
1458 libcdio_indev_deps="libcdio"
1459 libdc1394_indev_deps="libdc1394"
1460 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1461 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1462 pulse_indev_deps="libpulse"
1463 sndio_indev_deps="sndio_h"
1464 sndio_outdev_deps="sndio_h"
1465 v4l_indev_deps="linux_videodev_h"
1466 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1467 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1468 vfwcap_indev_extralibs="-lavicap32"
1469 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1470 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1471
1472 # protocols
1473 gopher_protocol_deps="network"
1474 http_protocol_deps="network"
1475 http_protocol_select="tcp_protocol"
1476 mmsh_protocol_select="http_protocol"
1477 mmst_protocol_deps="network"
1478 rtmp_protocol_select="tcp_protocol"
1479 rtp_protocol_select="udp_protocol"
1480 tcp_protocol_deps="network"
1481 udp_protocol_deps="network"
1482
1483 # filters
1484 blackframe_filter_deps="gpl"
1485 boxblur_filter_deps="gpl"
1486 cropdetect_filter_deps="gpl"
1487 delogo_filter_deps="gpl"
1488 drawtext_filter_deps="libfreetype"
1489 frei0r_filter_deps="frei0r dlopen strtok_r"
1490 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1491 hqdn3d_filter_deps="gpl"
1492 ocv_filter_deps="libopencv"
1493 scale_filter_deps="swscale"
1494 yadif_filter_deps="gpl"
1495
1496 # libraries
1497 avdevice_deps="avcodec avformat"
1498 avformat_deps="avcodec"
1499 postproc_deps="gpl"
1500
1501 # programs
1502 ffmpeg_deps="avcodec avformat swscale"
1503 ffmpeg_select="buffer_filter"
1504 avconv_deps="avcodec avformat swscale"
1505 avconv_select="buffer_filter"
1506 avplay_deps="avcodec avformat swscale sdl"
1507 avplay_select="rdft"
1508 avprobe_deps="avcodec avformat"
1509 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1510 avserver_extralibs='$ldl'
1511
1512 doc_deps="texi2html"
1513
1514 # tests
1515
1516 test_deps(){
1517     suf1=$1
1518     suf2=$2
1519     shift 2
1520     for v; do
1521         dep=${v%=*}
1522         tests=${v#*=}
1523         for name in ${tests}; do
1524             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1525         done
1526     done
1527 }
1528
1529 mxf_d10_test_deps="avfilter"
1530 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1531
1532 test_deps _encoder _decoder                                             \
1533     adpcm_g726=g726                                                     \
1534     adpcm_ima_qt                                                        \
1535     adpcm_ima_wav                                                       \
1536     adpcm_ms                                                            \
1537     adpcm_swf                                                           \
1538     adpcm_yamaha=adpcm_yam                                              \
1539     alac                                                                \
1540     asv1                                                                \
1541     asv2                                                                \
1542     bmp                                                                 \
1543     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1544     dvvideo="dv dv50"                                                   \
1545     ffv1                                                                \
1546     flac                                                                \
1547     flashsv                                                             \
1548     flv                                                                 \
1549     gif                                                                 \
1550     h261                                                                \
1551     h263="h263 h263p"                                                   \
1552     huffyuv                                                             \
1553     jpegls                                                              \
1554     mjpeg="jpg mjpeg ljpeg"                                             \
1555     mp2                                                                 \
1556     mpeg1video="mpeg mpeg1b"                                            \
1557     mpeg2video="mpeg2 mpeg2thread"                                      \
1558     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1559     msmpeg4v3=msmpeg4                                                   \
1560     msmpeg4v2                                                           \
1561     pbm=pbmpipe                                                         \
1562     pcx                                                                 \
1563     pgm="pgm pgmpipe"                                                   \
1564     png                                                                 \
1565     ppm="ppm ppmpipe"                                                   \
1566     rawvideo="rgb yuv"                                                  \
1567     roq                                                                 \
1568     rv10                                                                \
1569     rv20                                                                \
1570     sgi                                                                 \
1571     snow="snow snowll"                                                  \
1572     svq1                                                                \
1573     targa=tga                                                           \
1574     tiff                                                                \
1575     wmav1                                                               \
1576     wmav2                                                               \
1577     wmv1                                                                \
1578     wmv2                                                                \
1579
1580 test_deps _muxer _demuxer                                               \
1581     aiff                                                                \
1582     pcm_alaw=alaw                                                       \
1583     asf                                                                 \
1584     au                                                                  \
1585     avi                                                                 \
1586     dv=dv_fmt                                                           \
1587     ffm                                                                 \
1588     flv=flv_fmt                                                         \
1589     gxf                                                                 \
1590     matroska=mkv                                                        \
1591     mmf                                                                 \
1592     mov                                                                 \
1593     pcm_mulaw=mulaw                                                     \
1594     mxf="mxf mxf_d10"                                                   \
1595     nut                                                                 \
1596     ogg                                                                 \
1597     rawvideo=pixfmt                                                     \
1598     rm                                                                  \
1599     swf                                                                 \
1600     mpegts=ts                                                           \
1601     voc                                                                 \
1602     wav                                                                 \
1603     yuv4mpegpipe=yuv4mpeg                                               \
1604
1605 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1606 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1607
1608 # default parameters
1609
1610 logfile="config.log"
1611
1612 # installation paths
1613 prefix_default="/usr/local"
1614 bindir_default='${prefix}/bin'
1615 datadir_default='${prefix}/share/avconv'
1616 incdir_default='${prefix}/include'
1617 libdir_default='${prefix}/lib'
1618 mandir_default='${prefix}/share/man'
1619 shlibdir_default="$libdir_default"
1620
1621 # toolchain
1622 ar_default="ar"
1623 cc_default="gcc"
1624 cc_version=\"unknown\"
1625 host_cc_default="gcc"
1626 ln_s="ln -sf"
1627 nm_default="nm"
1628 objformat="elf"
1629 pkg_config_default=pkg-config
1630 ranlib="ranlib"
1631 yasmexe="yasm"
1632 nogas=":"
1633
1634 nm_opts='-g'
1635
1636 # machine
1637 arch_default=$(uname -m)
1638 cpu="generic"
1639
1640 # OS
1641 target_os_default=$(tolower $(uname -s))
1642 host_os=$target_os_default
1643
1644 # configurable options
1645 enable avcodec
1646 enable avdevice
1647 enable avfilter
1648 enable avformat
1649 enable avutil
1650 enable asm
1651 enable debug
1652 enable doc
1653 enable fastdiv
1654 enable ffmpeg
1655 enable avconv
1656 enable avplay
1657 enable avprobe
1658 enable avserver
1659 enable network
1660 enable optimizations
1661 enable postproc
1662 enable protocols
1663 enable static
1664 enable swscale
1665 enable swscale_alpha
1666
1667 # build settings
1668 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1669 AVSERVERLDFLAGS=-Wl,-E
1670 LIBPREF="lib"
1671 LIBSUF=".a"
1672 FULLNAME='$(NAME)$(BUILDSUF)'
1673 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1674 SLIBPREF="lib"
1675 SLIBSUF=".so"
1676 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1677 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1678 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1679 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1680 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1681 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1682
1683 AS_O='-o $@'
1684 CC_O='-o $@'
1685
1686 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1687 host_libs='-lm'
1688
1689 target_path='$(CURDIR)'
1690
1691 # since the object filename is not given with the -MM flag, the compiler
1692 # is only able to print the basename, and we must add the path ourselves
1693 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1694 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1695
1696 # find source path
1697 if test -f configure; then
1698     source_path=.
1699 else
1700     source_path=$(cd $(dirname "$0"); pwd)
1701     echo "$source_path" | grep -q '[[:blank:]]' &&
1702         die "Out of tree builds are impossible with whitespace in source path."
1703     test -e "$source_path/config.h" &&
1704         die "Out of tree builds are impossible with config.h in source dir."
1705 fi
1706
1707 for v in "$@"; do
1708     r=${v#*=}
1709     l=${v%"$r"}
1710     r=$(sh_quote "$r")
1711     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1712 done
1713
1714 find_things(){
1715     thing=$1
1716     pattern=$2
1717     file=$source_path/$3
1718     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1719 }
1720
1721 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1722 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1723 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1724 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1725 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1726 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1727 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1728 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1729 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1730 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1731 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1732
1733 find_tests(){
1734     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1735 }
1736
1737 ACODEC_TESTS=$(find_tests acodec)
1738 VCODEC_TESTS=$(find_tests vsynth1)
1739 LAVF_TESTS=$(find_tests lavf)
1740 LAVFI_TESTS=$(find_tests lavfi)
1741 SEEK_TESTS=$(find_tests seek seek_)
1742
1743 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1744
1745 for n in $COMPONENT_LIST; do
1746     v=$(toupper ${n%s})_LIST
1747     eval enable \$$v
1748     eval ${n}_if_any="\$$v"
1749 done
1750
1751 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1752
1753 die_unknown(){
1754     echo "Unknown option \"$1\"."
1755     echo "See $0 --help for available options."
1756     exit 1
1757 }
1758
1759 show_list() {
1760     suffix=_$1
1761     shift
1762     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1763     exit 0
1764 }
1765
1766 for opt do
1767     optval="${opt#*=}"
1768     case "$opt" in
1769     --extra-ldflags=*) add_ldflags $optval
1770     ;;
1771     --extra-libs=*) add_extralibs $optval
1772     ;;
1773     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1774     ;;
1775     --enable-debug=*) debuglevel="$optval"
1776     ;;
1777     --disable-everything)
1778     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1779     ;;
1780     --enable-*=*|--disable-*=*)
1781     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1782     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1783     eval list=\$$(toupper $thing)_LIST
1784     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1785     $action $(filter "$name" $list)
1786     ;;
1787     --enable-?*|--disable-?*)
1788     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1789     if is_in $option $COMPONENT_LIST; then
1790         test $action = disable && action=unset
1791         eval $action \$$(toupper ${option%s})_LIST
1792     elif is_in $option $CMDLINE_SELECT; then
1793         $action $option
1794     else
1795         die_unknown $opt
1796     fi
1797     ;;
1798     --list-*)
1799         NAME="${opt#--list-}"
1800         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1801         NAME=${NAME%s}
1802         eval show_list $NAME \$$(toupper $NAME)_LIST
1803     ;;
1804     --help|-h) show_help
1805     ;;
1806     *)
1807     optname="${opt%%=*}"
1808     optname="${optname#--}"
1809     optname=$(echo "$optname" | sed 's/-/_/g')
1810     if is_in $optname $CMDLINE_SET; then
1811         eval $optname='$optval'
1812     elif is_in $optname $CMDLINE_APPEND; then
1813         append $optname "$optval"
1814     else
1815          die_unknown $opt
1816     fi
1817     ;;
1818     esac
1819 done
1820
1821 disabled logging && logfile=/dev/null
1822
1823 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1824 set >> $logfile
1825
1826 test -n "$cross_prefix" && enable cross_compile
1827
1828 if enabled cross_compile; then
1829     test -n "$arch" && test -n "$target_os" ||
1830         die "Must specify target arch and OS when cross-compiling"
1831 fi
1832
1833 set_default arch target_os
1834
1835 ar_default="${cross_prefix}${ar_default}"
1836 cc_default="${cross_prefix}${cc_default}"
1837 nm_default="${cross_prefix}${nm_default}"
1838 pkg_config_default="${cross_prefix}${pkg_config_default}"
1839 ranlib="${cross_prefix}${ranlib}"
1840
1841 sysinclude_default="${sysroot}/usr/include"
1842
1843 set_default cc nm pkg_config sysinclude
1844 enabled cross_compile || host_cc_default=$cc
1845 set_default host_cc
1846
1847 if ! $pkg_config --version >/dev/null 2>&1; then
1848     warn "$pkg_config not found, library detection may fail."
1849     pkg_config=false
1850 fi
1851
1852 exesuf() {
1853     case $1 in
1854         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1855     esac
1856 }
1857
1858 EXESUF=$(exesuf $target_os)
1859 HOSTEXESUF=$(exesuf $host_os)
1860
1861 # set temporary file name
1862 : ${TMPDIR:=$TEMPDIR}
1863 : ${TMPDIR:=$TMP}
1864 : ${TMPDIR:=/tmp}
1865
1866 if ! check_cmd mktemp -u XXXXXX; then
1867     # simple replacement for missing mktemp
1868     # NOT SAFE FOR GENERAL USE
1869     mktemp(){
1870         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1871     }
1872 fi
1873
1874 tmpfile(){
1875     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1876         (set -C; exec > $tmp) 2>/dev/null ||
1877         die "Unable to create temporary file in $TMPDIR."
1878     append TMPFILES $tmp
1879     eval $1=$tmp
1880 }
1881
1882 trap 'rm -f -- $TMPFILES' EXIT
1883
1884 tmpfile TMPC  .c
1885 tmpfile TMPE  $EXESUF
1886 tmpfile TMPH  .h
1887 tmpfile TMPO  .o
1888 tmpfile TMPS  .S
1889 tmpfile TMPV  .ver
1890 tmpfile TMPSH .sh
1891 tmpfile TMPASM .asm
1892
1893 unset -f mktemp
1894
1895 chmod +x $TMPE
1896
1897 # make sure we can execute files in $TMPDIR
1898 cat > $TMPSH 2>> $logfile <<EOF
1899 #! /bin/sh
1900 EOF
1901 chmod +x $TMPSH >> $logfile 2>&1
1902 if ! $TMPSH >> $logfile 2>&1; then
1903     cat <<EOF
1904 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1905 variable to another directory and make sure that it is not mounted noexec.
1906 EOF
1907     die "Sanity test failed."
1908 fi
1909
1910 filter_cflags=echo
1911 filter_cppflags=echo
1912 filter_asflags=echo
1913
1914 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1915     cc_type=llvm_gcc
1916     cc_version=__VERSION__
1917     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1918     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1919     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1920     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1921     speed_cflags='-O3'
1922     size_cflags='-Os'
1923 elif $cc -v 2>&1 | grep -qi ^gcc; then
1924     cc_type=gcc
1925     cc_version=__VERSION__
1926     gcc_version=$($cc --version | head -n1)
1927     gcc_basever=$($cc -dumpversion)
1928     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1929     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1930     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1931     if ! $cc -dumpversion | grep -q '^2\.'; then
1932         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1933         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1934     fi
1935     speed_cflags='-O3'
1936     size_cflags='-Os'
1937 elif $cc --version 2>/dev/null | grep -q Intel; then
1938     cc_type=icc
1939     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1940     cc_ident=$($cc --version | head -n1)
1941     icc_version=$($cc -dumpversion)
1942     CC_DEPFLAGS='-MMD'
1943     AS_DEPFLAGS='-MMD'
1944     speed_cflags='-O3'
1945     size_cflags='-Os'
1946     noopt_cflags='-O1'
1947 elif $cc -v 2>&1 | grep -q xlc; then
1948     cc_type=xlc
1949     cc_version="AV_STRINGIFY(__IBMC__)"
1950     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1951     speed_cflags='-O5'
1952     size_cflags='-O5 -qcompact'
1953 elif $cc -V 2>/dev/null | grep -q Compaq; then
1954     cc_type=ccc
1955     cc_version="AV_STRINGIFY(__DECC_VER)"
1956     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1957     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1958     debuglevel=3
1959     add_ldflags -Wl,-z,now # calls to libots crash without this
1960     speed_cflags='-fast'
1961     size_cflags='-O1'
1962 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1963     test -d "$sysroot" || die "No valid sysroot specified."
1964     cc_type=armcc
1965     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1966     cc_ident=$($cc --vsn | head -n1)
1967     armcc_conf="$PWD/armcc.conf"
1968     $cc --arm_linux_configure                 \
1969         --arm_linux_config_file="$armcc_conf" \
1970         --configure_sysroot="$sysroot"        \
1971         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1972         die "Error creating armcc configuration file."
1973     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1974     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1975     as_default="${cross_prefix}gcc"
1976     CC_DEPFLAGS='-MMD'
1977     AS_DEPFLAGS='-MMD'
1978     speed_cflags='-O3'
1979     size_cflags='-Os'
1980     filter_asflags="filter_out -W${armcc_opt}*"
1981 elif $cc -version 2>/dev/null | grep -q TMS470; then
1982     cc_type=tms470
1983     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1984     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1985     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1986     CC_O='-fr=$(@D)'
1987     as_default="${cross_prefix}gcc"
1988     ld_default="${cross_prefix}gcc"
1989     TMPO=$(basename $TMPC .c).o
1990     append TMPFILES $TMPO
1991     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1992     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1993     AS_DEPFLAGS='-MMD'
1994     speed_cflags='-O3 -mf=5'
1995     size_cflags='-O3 -mf=2'
1996     filter_cflags=tms470_flags
1997     tms470_flags(){
1998         for flag; do
1999             case $flag in
2000                 -march=*|-mcpu=*)
2001                     case "${flag#*=}" in
2002                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2003                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2004                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2005                         armv6*|arm11*)          echo -mv=6   ;;
2006                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2007                                                 echo -mv=5e  ;;
2008                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2009                     esac
2010                     ;;
2011                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2012                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2013                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2014                 -msoft-float)   echo --float_support=vfplib       ;;
2015                 -O[0-3]|-mf=*)  echo $flag                        ;;
2016                 -g)             echo -g -mn                       ;;
2017                 -pds=*)         echo $flag                        ;;
2018             esac
2019         done
2020     }
2021 elif $cc -v 2>&1 | grep -q clang; then
2022     cc_type=clang
2023     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2024         cc_version=__clang_version__ || cc_version=__VERSION__
2025     cc_ident=$($cc --version | head -n1)
2026     CC_DEPFLAGS='-MMD'
2027     AS_DEPFLAGS='-MMD'
2028     speed_cflags='-O3'
2029     size_cflags='-Os'
2030 elif $cc -V 2>&1 | grep -q Sun; then
2031     cc_type=suncc
2032     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2033     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2034     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2035     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2036     add_ldflags -xc99
2037     speed_cflags='-O5'
2038     size_cflags='-O5 -xspace'
2039     filter_cflags=suncc_flags
2040     suncc_flags(){
2041         for flag; do
2042             case $flag in
2043                 -march=*|-mcpu=*)
2044                     case "${flag#*=}" in
2045                         native)                   echo -xtarget=native       ;;
2046                         v9|niagara)               echo -xarch=sparc          ;;
2047                         ultrasparc)               echo -xarch=sparcvis       ;;
2048                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2049                         i586|pentium)             echo -xchip=pentium        ;;
2050                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2051                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2052                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2053                         pentium4*)          echo -xtarget=pentium4           ;;
2054                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2055                         *-sse3)             echo -xarch=sse3                 ;;
2056                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2057                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2058                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2059                         k8|opteron|athlon64|athlon-fx)
2060                                                   echo -xarch=sse2a          ;;
2061                         athlon*)                  echo -xarch=pentium_proa   ;;
2062                     esac
2063                     ;;
2064                 -std=c99)             echo -xc99              ;;
2065                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2066                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2067                 -W*,*)                echo $flag              ;;
2068                 -f*-*|-W*)                                    ;;
2069                 *)                    echo $flag              ;;
2070             esac
2071         done
2072     }
2073 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2074     cc_type=pathscale
2075     cc_version=__PATHSCALE__
2076     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2077     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2078     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2079     speed_cflags='-O2'
2080     size_cflags='-Os'
2081     filter_cflags='filter_out -Wdisabled-optimization'
2082 elif $cc -v 2>&1 | grep -q Open64; then
2083     cc_type=open64
2084     cc_version=__OPEN64__
2085     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2086     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2087     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2088     speed_cflags='-O2'
2089     size_cflags='-Os'
2090     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2091 fi
2092
2093 test -n "$cc_type" && enable $cc_type ||
2094     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2095
2096 : ${as_default:=$cc}
2097 : ${dep_cc_default:=$cc}
2098 : ${ld_default:=$cc}
2099 set_default ar as dep_cc ld
2100
2101 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2102 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2103
2104 add_cflags $extra_cflags
2105 add_asflags $extra_cflags
2106
2107 if test -n "$sysroot"; then
2108     case "$cc_type" in
2109         gcc|llvm_gcc|clang)
2110             add_cppflags --sysroot="$sysroot"
2111             add_ldflags --sysroot="$sysroot"
2112         ;;
2113         tms470)
2114             add_cppflags -I"$sysinclude"
2115             add_ldflags  --sysroot="$sysroot"
2116         ;;
2117     esac
2118 fi
2119
2120 if test "$cpu" = host; then
2121     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2122
2123     case "$cc_type" in
2124         gcc|llvm_gcc)
2125             check_native(){
2126                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2127                 sed -n "/cc1.*$1=/{
2128                             s/.*$1=\\([^ ]*\\).*/\\1/
2129                             p
2130                             q
2131                         }" $TMPE
2132             }
2133             cpu=$(check_native -march || check_native -mcpu)
2134         ;;
2135     esac
2136
2137     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2138 fi
2139
2140 # Deal with common $arch aliases
2141 case "$arch" in
2142     arm*)
2143         arch="arm"
2144     ;;
2145     mips|mipsel|IP*)
2146         arch="mips"
2147     ;;
2148     mips64*)
2149         arch="mips"
2150         subarch="mips64"
2151     ;;
2152     parisc|hppa)
2153         arch="parisc"
2154     ;;
2155     parisc64|hppa64)
2156         arch="parisc"
2157         subarch="parisc64"
2158     ;;
2159     "Power Macintosh"|ppc|powerpc)
2160         arch="ppc"
2161     ;;
2162     ppc64|powerpc64)
2163         arch="ppc"
2164         subarch="ppc64"
2165     ;;
2166     s390|s390x)
2167         arch="s390"
2168     ;;
2169     sh4|sh)
2170         arch="sh4"
2171     ;;
2172     sun4u|sparc64)
2173         arch="sparc"
2174         subarch="sparc64"
2175     ;;
2176     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2177         arch="x86"
2178     ;;
2179 esac
2180
2181 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2182 enable $arch
2183
2184 # Add processor-specific flags
2185 if test "$cpu" = generic; then
2186     : do nothing
2187 elif enabled ppc; then
2188
2189     case $(tolower $cpu) in
2190         601|ppc601|powerpc601)
2191             cpuflags="-mcpu=601"
2192             disable altivec
2193         ;;
2194         603*|ppc603*|powerpc603*)
2195             cpuflags="-mcpu=603"
2196             disable altivec
2197         ;;
2198         604*|ppc604*|powerpc604*)
2199             cpuflags="-mcpu=604"
2200             disable altivec
2201         ;;
2202         g3|75*|ppc75*|powerpc75*)
2203             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2204             disable altivec
2205         ;;
2206         g4|745*|ppc745*|powerpc745*)
2207             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2208         ;;
2209         74*|ppc74*|powerpc74*)
2210             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2211         ;;
2212         g5|970|ppc970|powerpc970|power4*)
2213             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2214         ;;
2215         cell)
2216             cpuflags="-mcpu=cell"
2217             enable ldbrx
2218         ;;
2219         e500v2)
2220             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2221             disable altivec
2222         ;;
2223         e500)
2224             cpuflags="-mcpu=8540 -mhard-float"
2225             disable altivec
2226         ;;
2227     esac
2228
2229 elif enabled x86; then
2230
2231     case $cpu in
2232         i[345]86|pentium)
2233             cpuflags="-march=$cpu"
2234             disable mmx
2235         ;;
2236         # targets that do NOT support conditional mov (cmov)
2237         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2238             cpuflags="-march=$cpu"
2239             disable cmov
2240         ;;
2241         # targets that do support conditional mov (cmov)
2242         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2243             cpuflags="-march=$cpu"
2244             enable cmov
2245             enable fast_cmov
2246         ;;
2247         # targets that do support conditional mov but on which it's slow
2248         pentium4|pentium4m|prescott|nocona)
2249             cpuflags="-march=$cpu"
2250             enable cmov
2251             disable fast_cmov
2252         ;;
2253     esac
2254
2255 elif enabled sparc; then
2256
2257     case $cpu in
2258         niagara)
2259             cpuflags="-mcpu=$cpu"
2260             disable vis
2261         ;;
2262         sparc64)
2263             cpuflags="-mcpu=v9"
2264         ;;
2265     esac
2266
2267 elif enabled arm; then
2268
2269     case $cpu in
2270         armv*)
2271             cpuflags="-march=$cpu"
2272             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2273         ;;
2274         *)
2275             cpuflags="-mcpu=$cpu"
2276             case $cpu in
2277                 cortex-a*)                               subarch=armv7a  ;;
2278                 cortex-r*)                               subarch=armv7r  ;;
2279                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2280                 arm11*)                                  subarch=armv6   ;;
2281                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2282                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2283             esac
2284         ;;
2285     esac
2286
2287 elif enabled alpha; then
2288
2289     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2290
2291 elif enabled bfin; then
2292
2293     cpuflags="-mcpu=$cpu"
2294
2295 elif enabled mips; then
2296
2297     cpuflags="-march=$cpu"
2298
2299 elif enabled avr32; then
2300
2301     case $cpu in
2302         ap7[02]0[0-2])
2303             subarch="avr32_ap"
2304             cpuflags="-mpart=$cpu"
2305         ;;
2306         ap)
2307             subarch="avr32_ap"
2308             cpuflags="-march=$cpu"
2309         ;;
2310         uc3[ab]*)
2311             subarch="avr32_uc"
2312             cpuflags="-mcpu=$cpu"
2313         ;;
2314         uc)
2315             subarch="avr32_uc"
2316             cpuflags="-march=$cpu"
2317         ;;
2318     esac
2319
2320 fi
2321
2322 add_cflags $cpuflags
2323 add_asflags $cpuflags
2324
2325 # compiler sanity check
2326 check_exec <<EOF
2327 int main(void){ return 0; }
2328 EOF
2329 if test "$?" != 0; then
2330     echo "$cc is unable to create an executable file."
2331     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2332         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2333         echo "Only do this if you know what cross compiling means."
2334     fi
2335     die "C compiler test failed."
2336 fi
2337
2338 add_cppflags -D_ISOC99_SOURCE
2339 check_cflags -std=c99
2340 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2341 #include <stdlib.h>
2342 EOF
2343 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2344 #include <stdlib.h>
2345 EOF
2346
2347 check_host_cflags -std=c99
2348 check_host_cflags -Wall
2349
2350 case "$arch" in
2351     alpha|ia64|mips|parisc|sparc)
2352         spic=$shared
2353     ;;
2354     x86)
2355         subarch="x86_32"
2356         check_cc <<EOF && subarch="x86_64"
2357         int test[(int)sizeof(char*) - 7];
2358 EOF
2359         if test "$subarch" = "x86_64"; then
2360             spic=$shared
2361         fi
2362     ;;
2363 esac
2364
2365 enable $subarch
2366 enabled spic && enable pic
2367
2368 # OS specific
2369 case $target_os in
2370     haiku)
2371         prefix_default="/boot/common"
2372         network_extralibs="-lnetwork"
2373         host_libs=
2374         ;;
2375     sunos)
2376         AVSERVERLDFLAGS=""
2377         SHFLAGS='-shared -Wl,-h,$$(@F)'
2378         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2379         network_extralibs="-lsocket -lnsl"
2380         add_cppflags -D__EXTENSIONS__
2381         # When using suncc to build, the Solaris linker will mark
2382         # an executable with each instruction set encountered by
2383         # the Solaris assembler.  As our libraries contain their own
2384         # guards for processor-specific code, instead suppress
2385         # generation of the HWCAPS ELF section on Solaris x86 only.
2386         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2387         nm_opts='-P -g'
2388         ;;
2389     netbsd)
2390         disable symver
2391         oss_indev_extralibs="-lossaudio"
2392         oss_outdev_extralibs="-lossaudio"
2393         ;;
2394     openbsd)
2395         enable malloc_aligned
2396         # On OpenBSD 4.5. the compiler does not use PIC unless
2397         # explicitly using -fPIC. Libav builds fine without PIC,
2398         # however the generated executable will not do anything
2399         # (simply quits with exit-code 1, no crash, no output).
2400         # Thus explicitly enable PIC here.
2401         enable pic
2402         disable symver
2403         SHFLAGS='-shared'
2404         oss_indev_extralibs="-lossaudio"
2405         oss_outdev_extralibs="-lossaudio"
2406         ;;
2407     dragonfly)
2408         enable malloc_aligned
2409         disable symver
2410         ;;
2411     freebsd)
2412         enable malloc_aligned
2413         ;;
2414     bsd/os)
2415         add_extralibs -lpoll -lgnugetopt
2416         ;;
2417     darwin)
2418         enable malloc_aligned
2419         gas="gas-preprocessor.pl $cc"
2420         enabled ppc && add_asflags -force_cpusubtype_ALL
2421         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2422         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2423         add_ldflags -Wl,-dynamic,-search_paths_first
2424         SLIBSUF=".dylib"
2425         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2426         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2427         AVSERVERLDFLAGS=-Wl,-bind_at_load
2428         objformat="macho"
2429         enabled x86_64 && objformat="macho64"
2430         enabled_any pic shared ||
2431             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2432         ;;
2433     mingw32*)
2434         if test $target_os = "mingw32ce"; then
2435             disable network
2436         else
2437             target_os=mingw32
2438         fi
2439         LIBTARGET=i386
2440         if enabled x86_64; then
2441             enable malloc_aligned
2442             LIBTARGET="i386:x86-64"
2443         elif enabled arm; then
2444             LIBTARGET=arm-wince
2445         fi
2446         shlibdir_default="$bindir_default"
2447         SLIBPREF=""
2448         SLIBSUF=".dll"
2449         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2450         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2451         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2452         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2453         SLIB_INSTALL_LINKS=
2454         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2455         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2456         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'
2457         objformat="win32"
2458         dlltool="${cross_prefix}dlltool"
2459         enable dos_paths
2460         check_cflags -fno-common
2461         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2462                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2463                 die "ERROR: MinGW runtime version must be >= 3.15."
2464         add_cppflags -U__STRICT_ANSI__
2465         ;;
2466     cygwin*)
2467         target_os=cygwin
2468         shlibdir_default="$bindir_default"
2469         SLIBPREF="cyg"
2470         SLIBSUF=".dll"
2471         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2472         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2473         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2474         objformat="win32"
2475         enable dos_paths
2476         check_cflags -fno-common
2477         add_cppflags -U__STRICT_ANSI__
2478         ;;
2479     *-dos|freedos|opendos)
2480         network_extralibs="-lsocket"
2481         objformat="coff"
2482         enable dos_paths
2483         add_cppflags -U__STRICT_ANSI__
2484         ;;
2485     linux)
2486         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2487         enable dv1394
2488         ;;
2489     irix*)
2490         target_os=irix
2491         ranlib="echo ignoring ranlib"
2492         ;;
2493     os/2*)
2494         ln_s="cp -f"
2495         objformat="aout"
2496         add_cppflags -D_GNU_SOURCE
2497         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2498         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2499         AVSERVERLDFLAGS=""
2500         LIBSUF="_s.a"
2501         SLIBPREF=""
2502         SLIBSUF=".dll"
2503         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2504         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2505         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2506           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2507           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2508           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2509           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2510           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2511         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2512           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2513         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2514         enable dos_paths
2515         ;;
2516     gnu/kfreebsd)
2517         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2518         ;;
2519     gnu)
2520         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2521         ;;
2522     qnx)
2523         add_cppflags -D_QNX_SOURCE
2524         network_extralibs="-lsocket"
2525         ;;
2526     symbian)
2527         SLIBSUF=".dll"
2528         enable dos_paths
2529         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2530         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2531         add_ldflags -Wl,--target1-abs,--no-undefined \
2532                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2533                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2534         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2535                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2536                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2537         ;;
2538     none)
2539         ;;
2540     *)
2541         die "Unknown OS '$target_os'."
2542         ;;
2543 esac
2544
2545 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2546
2547 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2548
2549 set_default $PATHS_LIST
2550
2551 # we need to build at least one lib type
2552 if ! enabled_any static shared; then
2553     cat <<EOF
2554 At least one library type must be built.
2555 Specify --enable-static to build the static libraries or --enable-shared to
2556 build the shared libraries as well. To only build the shared libraries specify
2557 --disable-static in addition to --enable-shared.
2558 EOF
2559     exit 1;
2560 fi
2561
2562 die_license_disabled() {
2563     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2564 }
2565
2566 die_license_disabled gpl libcdio
2567 die_license_disabled gpl libx264
2568 die_license_disabled gpl libxavs
2569 die_license_disabled gpl libxvid
2570 die_license_disabled gpl x11grab
2571
2572 die_license_disabled nonfree libfaac
2573
2574 die_license_disabled version3 libopencore_amrnb
2575 die_license_disabled version3 libopencore_amrwb
2576 die_license_disabled version3 libvo_aacenc
2577 die_license_disabled version3 libvo_amrwbenc
2578
2579 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2580
2581 disabled optimizations || check_cflags -fomit-frame-pointer
2582
2583 enable_pic() {
2584     enable pic
2585     add_cppflags -DPIC
2586     add_cflags   -fPIC
2587     add_asflags  -fPIC
2588 }
2589
2590 enabled pic && enable_pic
2591
2592 check_cc <<EOF || die "Symbol mangling check failed."
2593 int ff_extern;
2594 EOF
2595 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2596 extern_prefix=${sym%%ff_extern*}
2597
2598 check_cc <<EOF && enable inline_asm
2599 void foo(void) { __asm__ volatile ("" ::); }
2600 EOF
2601
2602 _restrict=
2603 for restrict_keyword in restrict __restrict__ __restrict; do
2604     check_cc <<EOF && _restrict=$restrict_keyword && break
2605 void foo(char * $restrict_keyword p);
2606 EOF
2607 done
2608
2609 check_cc <<EOF && enable attribute_packed
2610 struct { int x; } __attribute__((packed)) x;
2611 EOF
2612
2613 check_cc <<EOF && enable attribute_may_alias
2614 union { int x; } __attribute__((may_alias)) x;
2615 EOF
2616
2617 check_cc <<EOF || die "endian test failed"
2618 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2619 EOF
2620 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2621
2622 if enabled alpha; then
2623
2624     check_cflags -mieee
2625
2626 elif enabled arm; then
2627
2628     enabled thumb && check_cflags -mthumb || check_cflags -marm
2629     nogas=die
2630
2631     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2632         enable vfp_args
2633     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2634         case "${cross_prefix:-$cc}" in
2635             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2636             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2637 __asm__ (".eabi_attribute 28, 1");
2638 int main(void) { return 0; }
2639 EOF
2640         esac
2641         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2642     fi
2643
2644     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2645     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2646     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2647     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2648     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2649     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2650     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2651
2652     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2653
2654     enabled_all armv6t2 shared !pic && enable_pic
2655
2656 elif enabled mips; then
2657
2658     check_asm loongson '"dmult.g $1, $2, $3"'
2659     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2660
2661 elif enabled ppc; then
2662
2663     enable local_aligned_8 local_aligned_16
2664
2665     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2666     check_asm ibm_asm   '"add 0, 0, 0"'
2667     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2668     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2669
2670     # AltiVec flags: The FSF version of GCC differs from the Apple version
2671     if enabled altivec; then
2672         nogas=warn
2673         check_cflags -maltivec -mabi=altivec &&
2674         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2675         check_cflags -faltivec
2676
2677         # check if our compiler supports Motorola AltiVec C API
2678         check_cc <<EOF || disable altivec
2679 $inc_altivec_h
2680 int main(void) {
2681     vector signed int v1, v2, v3;
2682     v1 = vec_add(v2,v3);
2683     return 0;
2684 }
2685 EOF
2686
2687         # check if our compiler supports braces for vector declarations
2688         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2689 $inc_altivec_h
2690 int main (void) { (vector int) {1}; return 0; }
2691 EOF
2692     fi
2693
2694 elif enabled sparc; then
2695
2696     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2697         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2698
2699 elif enabled x86; then
2700
2701     enable local_aligned_8 local_aligned_16
2702
2703     # check whether EBP is available on x86
2704     # As 'i' is stored on the stack, this program will crash
2705     # if the base pointer is used to access it because the
2706     # base pointer is cleared in the inline assembly code.
2707     check_exec_crash <<EOF && enable ebp_available
2708     volatile int i=0;
2709     __asm__ volatile (
2710         "xorl %%ebp, %%ebp"
2711     ::: "%ebp");
2712     return i;
2713 EOF
2714
2715     # check whether EBX is available on x86
2716     check_asm ebx_available '""::"b"(0)' &&
2717         check_asm ebx_available '"":::"%ebx"'
2718
2719     # check whether xmm clobbers are supported
2720     check_asm xmm_clobbers '"":::"%xmm0"'
2721
2722     # check whether binutils is new enough to compile SSSE3/MMX2
2723     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2724     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2725
2726     check_asm bswap '"bswap %%eax" ::: "%eax"'
2727
2728     if ! disabled_any asm mmx yasm; then
2729         if check_cmd $yasmexe --version; then
2730             enabled x86_64 && yasm_extra="-m amd64"
2731             yasm_debug="-g dwarf2"
2732         elif check_cmd nasm -v; then
2733             yasmexe=nasm
2734             yasm_debug="-g -F dwarf"
2735             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2736         fi
2737
2738         YASMFLAGS="-f $objformat $yasm_extra"
2739         enabled pic               && append YASMFLAGS "-DPIC"
2740         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2741         case "$objformat" in
2742             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2743         esac
2744
2745         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2746             die "yasm not found, use --disable-yasm for a crippled build"
2747         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2748     fi
2749
2750     case "$cpu" in
2751         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2752             disable fast_clz
2753         ;;
2754     esac
2755
2756 fi
2757
2758 if enabled asm; then
2759     as=${gas:=$as}
2760     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2761         $nogas "GNU assembler not found, install gas-preprocessor"
2762 fi
2763
2764 check_ldflags -Wl,--as-needed
2765
2766 if check_func dlopen; then
2767     ldl=
2768 elif check_func dlopen -ldl; then
2769     ldl=-ldl
2770 fi
2771
2772 if enabled network; then
2773     check_type "sys/types.h sys/socket.h" socklen_t
2774     check_type netdb.h "struct addrinfo"
2775     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2776     check_type netinet/in.h "struct sockaddr_in6"
2777     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2778     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2779     # Prefer arpa/inet.h over winsock2
2780     if check_header arpa/inet.h ; then
2781         check_func closesocket
2782     elif check_header winsock2.h ; then
2783         check_func_headers winsock2.h closesocket -lws2 && \
2784             network_extralibs="-lws2" || \
2785         { check_func_headers winsock2.h closesocket -lws2_32 && \
2786             network_extralibs="-lws2_32"; }
2787         check_type ws2tcpip.h socklen_t
2788         check_type ws2tcpip.h "struct addrinfo"
2789         check_type ws2tcpip.h "struct ipv6_mreq"
2790         check_type ws2tcpip.h "struct sockaddr_in6"
2791         check_type ws2tcpip.h "struct sockaddr_storage"
2792         check_struct winsock2.h "struct sockaddr" sa_len
2793     else
2794         disable network
2795     fi
2796 fi
2797
2798 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2799 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2800
2801 check_func  fcntl
2802 check_func  fork
2803 check_func  getaddrinfo $network_extralibs
2804 check_func  gethrtime
2805 check_func  getrusage
2806 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2807 check_func  inet_aton $network_extralibs
2808 check_func  isatty
2809 check_func  localtime_r
2810 check_func  ${malloc_prefix}memalign            && enable memalign
2811 check_func  mkstemp
2812 check_func  mmap
2813 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2814 check_func  setrlimit
2815 check_func  strerror_r
2816 check_func  strptime
2817 check_func  strtok_r
2818 check_func_headers io.h setmode
2819 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2820 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2821 check_func_headers windows.h GetProcessTimes
2822 check_func_headers windows.h MapViewOfFile
2823 check_func_headers windows.h VirtualAlloc
2824
2825 check_header dlfcn.h
2826 check_header dxva2api.h
2827 check_header malloc.h
2828 check_header poll.h
2829 check_header sys/mman.h
2830 check_header sys/resource.h
2831 check_header sys/select.h
2832 check_header vdpau/vdpau.h
2833 check_header vdpau/vdpau_x11.h
2834 check_header X11/extensions/XvMClib.h
2835
2836 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2837
2838 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2839 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2840
2841 # check for some common methods of building with pthread support
2842 # do this before the optional library checks as some of them require pthreads
2843 if ! disabled pthreads && ! enabled w32threads; then
2844     enable pthreads
2845     if check_func pthread_create; then
2846         :
2847     elif check_func pthread_create -pthread; then
2848         add_cflags -pthread
2849         add_extralibs -pthread
2850     elif check_func pthread_create -pthreads; then
2851         add_cflags -pthreads
2852         add_extralibs -pthreads
2853     elif check_func pthread_create -lpthreadGC2; then
2854         add_extralibs -lpthreadGC2
2855     elif ! check_lib pthread.h pthread_create -lpthread; then
2856         disable pthreads
2857     fi
2858 fi
2859
2860 for thread in $THREADS_LIST; do
2861     if enabled $thread; then
2862         test -n "$thread_type" &&
2863             die "ERROR: Only one thread type must be selected." ||
2864             thread_type="$thread"
2865     fi
2866 done
2867
2868 check_lib math.h sin -lm && LIBM="-lm"
2869 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2870
2871 check_mathfunc exp2
2872 check_mathfunc exp2f
2873 check_mathfunc llrint
2874 check_mathfunc llrintf
2875 check_mathfunc log2
2876 check_mathfunc log2f
2877 check_mathfunc lrint
2878 check_mathfunc lrintf
2879 check_mathfunc round
2880 check_mathfunc roundf
2881 check_mathfunc trunc
2882 check_mathfunc truncf
2883
2884 # these are off by default, so fail if requested and not available
2885 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2886 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2887 enabled libdirac   && require_pkg_config dirac                          \
2888     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2889     "dirac_decoder_init dirac_encoder_init"
2890 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2891 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2892 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2893 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2894 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2895 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2896 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2897 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2898 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2899 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2900 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2901 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2902 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2903 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2904 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2905 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2906 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2907 enabled libvpx     && {
2908     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2909                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2910     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2911                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2912 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2913                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2914                         die "ERROR: libx264 version must be >= 0.118."; }
2915 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2916 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2917 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2918
2919 # libdc1394 check
2920 if enabled libdc1394; then
2921     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2922         enable libdc1394_2; } ||
2923     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2924         enable libdc1394_1; } ||
2925     die "ERROR: No version of libdc1394 found "
2926 fi
2927
2928 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2929     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2930     enable sdl &&
2931     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2932 fi
2933
2934 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2935
2936 check_header linux/fb.h
2937 check_header linux/videodev.h
2938 check_header linux/videodev2.h
2939 check_header sys/videoio.h
2940
2941 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2942 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2943 # w32api 3.12 had it defined wrong
2944 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2945
2946 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2947 { check_header dev/bktr/ioctl_meteor.h &&
2948   check_header dev/bktr/ioctl_bt848.h; } ||
2949 { check_header machine/ioctl_meteor.h &&
2950   check_header machine/ioctl_bt848.h; } ||
2951 { check_header dev/video/meteor/ioctl_meteor.h &&
2952   check_header dev/video/bktr/ioctl_bt848.h; } ||
2953 check_header dev/ic/bt8xx.h
2954
2955 check_header sndio.h
2956 check_header sys/soundcard.h
2957 check_header soundcard.h
2958
2959 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2960
2961 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2962
2963 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2964
2965 enabled libcdio &&
2966     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2967
2968 enabled x11grab                         &&
2969 check_header X11/Xlib.h                 &&
2970 check_header X11/extensions/XShm.h      &&
2971 check_header X11/extensions/Xfixes.h    &&
2972 check_func XOpenDisplay -lX11           &&
2973 check_func XShmCreateImage -lX11 -lXext &&
2974 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2975
2976 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2977 check_cpp_condition \
2978     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2979     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2980       disable vdpau; }
2981 fi
2982
2983 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2984
2985 # add some useful compiler flags if supported
2986 check_cflags -Wdeclaration-after-statement
2987 check_cflags -Wall
2988 check_cflags -Wno-parentheses
2989 check_cflags -Wno-switch
2990 check_cflags -Wno-format-zero-length
2991 check_cflags -Wdisabled-optimization
2992 check_cflags -Wpointer-arith
2993 check_cflags -Wredundant-decls
2994 check_cflags -Wno-pointer-sign
2995 check_cflags -Wcast-qual
2996 check_cflags -Wwrite-strings
2997 check_cflags -Wtype-limits
2998 check_cflags -Wundef
2999 check_cflags -Wmissing-prototypes
3000 check_cflags -Wstrict-prototypes
3001 enabled extra_warnings && check_cflags -Winline
3002
3003 # add some linker flags
3004 check_ldflags -Wl,--warn-common
3005 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3006 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3007
3008 echo "X{};" > $TMPV
3009 if test_ldflags -Wl,--version-script,$TMPV; then
3010     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3011     check_cc <<EOF && enable symver_asm_label
3012 void ff_foo(void) __asm__ ("av_foo@VERSION");
3013 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3014 EOF
3015     check_cc <<EOF && enable symver_gnu_asm
3016 __asm__(".symver ff_foo,av_foo@VERSION");
3017 void ff_foo(void) {}
3018 EOF
3019 fi
3020
3021 if [ -n "$optflags" ]; then
3022     add_cflags $optflags
3023 elif enabled small; then
3024     add_cflags $size_cflags
3025 elif enabled optimizations; then
3026     add_cflags $speed_cflags
3027 else
3028     add_cflags $noopt_cflags
3029 fi
3030 check_cflags -fno-math-errno
3031 check_cflags -fno-signed-zeros
3032
3033 if enabled icc; then
3034     # Just warnings, no remarks
3035     check_cflags -w1
3036     # -wd: Disable following warnings
3037     # 144, 167, 556: -Wno-pointer-sign
3038     # 1292: attribute "foo" ignored
3039     # 10006: ignoring unknown option -fno-signed-zeros
3040     # 10148: ignoring unknown option -Wno-parentheses
3041     # 10156: ignoring option '-W'; no argument required
3042     check_cflags -wd144,167,556,1292,10006,10148,10156
3043     # 11030: Warning unknown option --as-needed
3044     # 10156: ignoring option '-export'; no argument required
3045     check_ldflags -wd10156,11030
3046     # Allow to compile with optimizations
3047     check_ldflags -march=$cpu
3048     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3049     enable ebp_available
3050     if enabled x86_32; then
3051         test ${icc_version%%.*} -ge 11 && \
3052             check_cflags -falign-stack=maintain-16-byte || \
3053             disable aligned_stack
3054     fi
3055 elif enabled ccc; then
3056     # disable some annoying warnings
3057     add_cflags -msg_disable cvtu32to64
3058     add_cflags -msg_disable embedcomment
3059     add_cflags -msg_disable needconstext
3060     add_cflags -msg_disable nomainieee
3061     add_cflags -msg_disable ptrmismatch1
3062     add_cflags -msg_disable unreachcode
3063 elif enabled gcc; then
3064     check_cflags -fno-tree-vectorize
3065     check_cflags -Werror=implicit-function-declaration
3066     check_cflags -Werror=missing-prototypes
3067 elif enabled llvm_gcc; then
3068     check_cflags -mllvm -stack-alignment=16
3069 elif enabled clang; then
3070     check_cflags -mllvm -stack-alignment=16
3071     check_cflags -Qunused-arguments
3072 elif enabled armcc; then
3073     # 2523: use of inline assembler is deprecated
3074     add_cflags -W${armcc_opt},--diag_suppress=2523
3075     add_cflags -W${armcc_opt},--diag_suppress=1207
3076     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3077     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3078     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3079     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3080 elif enabled tms470; then
3081     add_cflags -pds=824 -pds=837
3082 elif enabled pathscale; then
3083     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3084 fi
3085
3086 enabled_any $THREADS_LIST      && enable threads
3087
3088 check_deps $CONFIG_LIST       \
3089            $CONFIG_EXTRA      \
3090            $HAVE_LIST         \
3091            $DECODER_LIST      \
3092            $ENCODER_LIST      \
3093            $HWACCEL_LIST      \
3094            $PARSER_LIST       \
3095            $BSF_LIST          \
3096            $DEMUXER_LIST      \
3097            $MUXER_LIST        \
3098            $FILTER_LIST       \
3099            $INDEV_LIST        \
3100            $OUTDEV_LIST       \
3101            $PROTOCOL_LIST     \
3102            $ACODEC_TESTS      \
3103            $VCODEC_TESTS      \
3104            $LAVF_TESTS        \
3105            $LAVFI_TESTS       \
3106            $SEEK_TESTS        \
3107
3108 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3109
3110 ! enabled_any memalign posix_memalign malloc_aligned &&
3111     enabled_any $need_memalign && enable memalign_hack
3112
3113 echo "install prefix            $prefix"
3114 echo "source path               $source_path"
3115 echo "C compiler                $cc"
3116 echo "ARCH                      $arch ($cpu)"
3117 if test "$build_suffix" != ""; then
3118     echo "build suffix              $build_suffix"
3119 fi
3120 if test "$extra_version" != ""; then
3121     echo "version string suffix     $extra_version"
3122 fi
3123 echo "big-endian                ${bigendian-no}"
3124 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3125 if enabled x86; then
3126     echo "${yasmexe}                      ${yasm-no}"
3127     echo "MMX enabled               ${mmx-no}"
3128     echo "MMX2 enabled              ${mmx2-no}"
3129     echo "3DNow! enabled            ${amd3dnow-no}"
3130     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3131     echo "SSE enabled               ${sse-no}"
3132     echo "SSSE3 enabled             ${ssse3-no}"
3133     echo "AVX enabled               ${avx-no}"
3134     echo "CMOV enabled              ${cmov-no}"
3135     echo "CMOV is fast              ${fast_cmov-no}"
3136     echo "EBX available             ${ebx_available-no}"
3137     echo "EBP available             ${ebp_available-no}"
3138 fi
3139 if enabled arm; then
3140     echo "ARMv5TE enabled           ${armv5te-no}"
3141     echo "ARMv6 enabled             ${armv6-no}"
3142     echo "ARMv6T2 enabled           ${armv6t2-no}"
3143     echo "ARM VFP enabled           ${armvfp-no}"
3144     echo "IWMMXT enabled            ${iwmmxt-no}"
3145     echo "NEON enabled              ${neon-no}"
3146 fi
3147 if enabled mips; then
3148     echo "MMI enabled               ${mmi-no}"
3149 fi
3150 if enabled ppc; then
3151     echo "AltiVec enabled           ${altivec-no}"
3152     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3153     echo "dcbzl available           ${dcbzl-no}"
3154 fi
3155 if enabled sparc; then
3156     echo "VIS enabled               ${vis-no}"
3157 fi
3158 echo "debug symbols             ${debug-no}"
3159 echo "optimize for size         ${small-no}"
3160 echo "optimizations             ${optimizations-no}"
3161 echo "static                    ${static-no}"
3162 echo "shared                    ${shared-no}"
3163 echo "postprocessing support    ${postproc-no}"
3164 echo "new filter support        ${avfilter-no}"
3165 echo "network support           ${network-no}"
3166 echo "threading support         ${thread_type-no}"
3167 echo "SDL support               ${sdl-no}"
3168 echo "Sun medialib support      ${mlib-no}"
3169 echo "libdxva2 enabled          ${dxva2-no}"
3170 echo "libva enabled             ${vaapi-no}"
3171 echo "libvdpau enabled          ${vdpau-no}"
3172 echo "AVISynth enabled          ${avisynth-no}"
3173 echo "frei0r enabled            ${frei0r-no}"
3174 echo "libcdio support           ${libcdio-no}"
3175 echo "libdc1394 support         ${libdc1394-no}"
3176 echo "libdirac enabled          ${libdirac-no}"
3177 echo "libfaac enabled           ${libfaac-no}"
3178 echo "libgsm enabled            ${libgsm-no}"
3179 echo "libmp3lame enabled        ${libmp3lame-no}"
3180 echo "libnut enabled            ${libnut-no}"
3181 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3182 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3183 echo "libopencv support         ${libopencv-no}"
3184 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3185 echo "libpulse enabled          ${libpulse-no}"
3186 echo "librtmp enabled           ${librtmp-no}"
3187 echo "libschroedinger enabled   ${libschroedinger-no}"
3188 echo "libspeex enabled          ${libspeex-no}"
3189 echo "libtheora enabled         ${libtheora-no}"
3190 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3191 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3192 echo "libvorbis enabled         ${libvorbis-no}"
3193 echo "libvpx enabled            ${libvpx-no}"
3194 echo "libx264 enabled           ${libx264-no}"
3195 echo "libxavs enabled           ${libxavs-no}"
3196 echo "libxvid enabled           ${libxvid-no}"
3197 echo "zlib enabled              ${zlib-no}"
3198 echo "bzlib enabled             ${bzlib-no}"
3199 echo
3200
3201 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3202     echo "Enabled ${type}s:"
3203     eval list=\$$(toupper $type)_LIST
3204     print_enabled '_*' $list | sort | pr -r -3 -t
3205     echo
3206 done
3207
3208 license="LGPL version 2.1 or later"
3209 if enabled nonfree; then
3210     license="nonfree and unredistributable"
3211 elif enabled gplv3; then
3212     license="GPL version 3 or later"
3213 elif enabled lgplv3; then
3214     license="LGPL version 3 or later"
3215 elif enabled gpl; then
3216     license="GPL version 2 or later"
3217 fi
3218
3219 echo "License: $license"
3220
3221 echo "Creating config.mak and config.h..."
3222
3223 test -e Makefile || $ln_s "$source_path/Makefile" .
3224
3225 config_files="$TMPH config.mak"
3226
3227 cat > config.mak <<EOF
3228 # Automatically generated by configure - do not modify!
3229 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3230 prefix=$prefix
3231 LIBDIR=\$(DESTDIR)$libdir
3232 SHLIBDIR=\$(DESTDIR)$shlibdir
3233 INCDIR=\$(DESTDIR)$incdir
3234 BINDIR=\$(DESTDIR)$bindir
3235 DATADIR=\$(DESTDIR)$datadir
3236 MANDIR=\$(DESTDIR)$mandir
3237 SRC_PATH=$source_path
3238 CC_IDENT=$cc_ident
3239 ARCH=$arch
3240 CC=$cc
3241 AS=$as
3242 LD=$ld
3243 DEPCC=$dep_cc
3244 YASM=$yasmexe
3245 YASMDEP=$yasmexe
3246 AR=$ar
3247 RANLIB=$ranlib
3248 LN_S=$ln_s
3249 CPPFLAGS=$CPPFLAGS
3250 CFLAGS=$CFLAGS
3251 ASFLAGS=$ASFLAGS
3252 AS_O=$CC_O
3253 CC_O=$CC_O
3254 DLLTOOL=$dlltool
3255 LDFLAGS=$LDFLAGS
3256 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3257 SHFLAGS=$SHFLAGS
3258 YASMFLAGS=$YASMFLAGS
3259 BUILDSUF=$build_suffix
3260 FULLNAME=$FULLNAME
3261 LIBPREF=$LIBPREF
3262 LIBSUF=$LIBSUF
3263 LIBNAME=$LIBNAME
3264 SLIBPREF=$SLIBPREF
3265 SLIBSUF=$SLIBSUF
3266 EXESUF=$EXESUF
3267 EXTRA_VERSION=$extra_version
3268 DEPFLAGS=$DEPFLAGS
3269 CCDEP=$CCDEP
3270 ASDEP=$ASDEP
3271 CC_DEPFLAGS=$CC_DEPFLAGS
3272 AS_DEPFLAGS=$AS_DEPFLAGS
3273 HOSTCC=$host_cc
3274 HOSTCFLAGS=$host_cflags
3275 HOSTEXESUF=$HOSTEXESUF
3276 HOSTLDFLAGS=$host_ldflags
3277 HOSTLIBS=$host_libs
3278 TARGET_EXEC=$target_exec
3279 TARGET_PATH=$target_path
3280 SDL_LIBS=$sdl_libs
3281 SDL_CFLAGS=$sdl_cflags
3282 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3283 EXTRALIBS=$extralibs
3284 INSTALL=install
3285 LIBTARGET=${LIBTARGET}
3286 SLIBNAME=${SLIBNAME}
3287 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3288 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3289 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3290 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3291 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3292 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3293 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3294 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3295 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3296 EOF
3297
3298 get_version(){
3299     name=$1
3300     file=$source_path/$2
3301     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3302     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3303     lcname=$(tolower $name)
3304     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3305     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3306 }
3307
3308 get_version LIBSWSCALE  libswscale/swscale.h
3309 get_version LIBPOSTPROC libpostproc/postprocess.h
3310 get_version LIBAVCODEC  libavcodec/version.h
3311 get_version LIBAVDEVICE libavdevice/avdevice.h
3312 get_version LIBAVFORMAT libavformat/version.h
3313 get_version LIBAVUTIL   libavutil/avutil.h
3314 get_version LIBAVFILTER libavfilter/avfilter.h
3315
3316 cat > $TMPH <<EOF
3317 /* Automatically generated by configure - do not modify! */
3318 #ifndef LIBAV_CONFIG_H
3319 #define LIBAV_CONFIG_H
3320 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3321 #define LIBAV_LICENSE "$(c_escape $license)"
3322 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3323 #define CC_TYPE "$cc_type"
3324 #define CC_VERSION $cc_version
3325 #define restrict $_restrict
3326 #define EXTERN_PREFIX "${extern_prefix}"
3327 #define EXTERN_ASM ${extern_prefix}
3328 #define SLIBSUF "$SLIBSUF"
3329 EOF
3330
3331 test -n "$malloc_prefix" &&
3332     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3333
3334 if enabled small || disabled optimizations; then
3335     echo "#undef  av_always_inline"  >> $TMPH
3336     if enabled small; then
3337         echo "#define av_always_inline inline"  >> $TMPH
3338     else
3339         echo "#define av_always_inline av_unused"  >> $TMPH
3340     fi
3341 fi
3342
3343 if enabled yasm; then
3344     append config_files $TMPASM
3345     printf '' >$TMPASM
3346 fi
3347
3348 print_config ARCH_   "$config_files" $ARCH_LIST
3349 print_config HAVE_   "$config_files" $HAVE_LIST
3350 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3351                                      $CONFIG_EXTRA      \
3352                                      $DECODER_LIST      \
3353                                      $ENCODER_LIST      \
3354                                      $HWACCEL_LIST      \
3355                                      $PARSER_LIST       \
3356                                      $BSF_LIST          \
3357                                      $DEMUXER_LIST      \
3358                                      $MUXER_LIST        \
3359                                      $FILTER_LIST       \
3360                                      $PROTOCOL_LIST     \
3361                                      $INDEV_LIST        \
3362                                      $OUTDEV_LIST       \
3363
3364 cat >>config.mak <<EOF
3365 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3366 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3367 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3368 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3369 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3370 EOF
3371
3372 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3373
3374 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3375 cp_if_changed $TMPH config.h
3376 touch .config
3377
3378 enabled yasm && cp_if_changed $TMPASM config.asm
3379
3380 cat > $TMPH <<EOF
3381 /* Generated by ffconf */
3382 #ifndef AVUTIL_AVCONFIG_H
3383 #define AVUTIL_AVCONFIG_H
3384 EOF
3385
3386 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3387
3388 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3389
3390 cp_if_changed $TMPH libavutil/avconfig.h
3391
3392 test -n "$WARNINGS" && printf "\n$WARNINGS"
3393
3394 # build pkg-config files
3395
3396 pkgconfig_generate(){
3397 name=$1
3398 shortname=${name#lib}${build_suffix}
3399 comment=$2
3400 version=$3
3401 libs=$4
3402 requires=$5
3403 enabled ${name#lib} || return 0
3404 mkdir -p $name
3405 cat <<EOF > $name/$name.pc
3406 prefix=$prefix
3407 exec_prefix=\${prefix}
3408 libdir=$libdir
3409 includedir=$incdir
3410
3411 Name: $name
3412 Description: $comment
3413 Version: $version
3414 Requires: $(enabled shared || echo $requires)
3415 Requires.private: $(enabled shared && echo $requires)
3416 Conflicts:
3417 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3418 Libs.private: $(enabled shared && echo $libs)
3419 Cflags: -I\${includedir}
3420 EOF
3421 cat <<EOF > $name/$name-uninstalled.pc
3422 prefix=
3423 exec_prefix=
3424 libdir=\${pcfiledir}
3425 includedir=${source_path}
3426
3427 Name: $name
3428 Description: $comment
3429 Version: $version
3430 Requires: $requires
3431 Conflicts:
3432 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3433 Cflags: -I\${includedir}
3434 EOF
3435 }
3436
3437 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3438 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3439 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3440 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3441 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3442 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3443 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"