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