avtools: parse loglevel before all the other options.
[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     attribute_may_alias
1046     attribute_packed
1047     bswap
1048     closesocket
1049     cmov
1050     dcbzl
1051     dev_bktr_ioctl_bt848_h
1052     dev_bktr_ioctl_meteor_h
1053     dev_ic_bt8xx_h
1054     dev_video_meteor_ioctl_meteor_h
1055     dev_video_bktr_ioctl_bt848_h
1056     dlfcn_h
1057     dlopen
1058     dos_paths
1059     ebp_available
1060     ebx_available
1061     exp2
1062     exp2f
1063     fast_64bit
1064     fast_clz
1065     fast_cmov
1066     fcntl
1067     fork
1068     getaddrinfo
1069     gethrtime
1070     GetProcessMemoryInfo
1071     GetProcessTimes
1072     getrusage
1073     gnu_as
1074     struct_rusage_ru_maxrss
1075     ibm_asm
1076     inet_aton
1077     inline_asm
1078     isatty
1079     ldbrx
1080     libdc1394_1
1081     libdc1394_2
1082     llrint
1083     llrintf
1084     local_aligned_16
1085     local_aligned_8
1086     localtime_r
1087     log2
1088     log2f
1089     loongson
1090     lrint
1091     lrintf
1092     lzo1x_999_compress
1093     machine_ioctl_bt848_h
1094     machine_ioctl_meteor_h
1095     malloc_h
1096     MapViewOfFile
1097     memalign
1098     mkstemp
1099     mmap
1100     posix_memalign
1101     round
1102     roundf
1103     sdl
1104     sdl_video_size
1105     setmode
1106     sndio_h
1107     socklen_t
1108     soundcard_h
1109     poll_h
1110     setrlimit
1111     strerror_r
1112     strptime
1113     strtok_r
1114     struct_addrinfo
1115     struct_ipv6_mreq
1116     struct_sockaddr_in6
1117     struct_sockaddr_sa_len
1118     struct_sockaddr_storage
1119     symver
1120     symver_gnu_asm
1121     symver_asm_label
1122     sys_mman_h
1123     sys_resource_h
1124     sys_select_h
1125     sys_soundcard_h
1126     sys_videoio_h
1127     threads
1128     trunc
1129     truncf
1130     vfp_args
1131     VirtualAlloc
1132     winsock2_h
1133     xform_asm
1134     xmm_clobbers
1135     yasm
1136 "
1137
1138 # options emitted with CONFIG_ prefix but not available on command line
1139 CONFIG_EXTRA="
1140     avutil
1141     gplv3
1142     lgplv3
1143 "
1144
1145 CMDLINE_SELECT="
1146     $ARCH_EXT_LIST
1147     $CONFIG_LIST
1148     $THREADS_LIST
1149     asm
1150     cross_compile
1151     debug
1152     extra_warnings
1153     logging
1154     optimizations
1155     symver
1156     yasm
1157 "
1158
1159 PATHS_LIST='
1160     bindir
1161     datadir
1162     incdir
1163     libdir
1164     mandir
1165     prefix
1166     shlibdir
1167 '
1168
1169 CMDLINE_SET="
1170     $PATHS_LIST
1171     ar
1172     arch
1173     as
1174     build_suffix
1175     cc
1176     cpu
1177     cross_prefix
1178     dep_cc
1179     extra_version
1180     host_cc
1181     host_cflags
1182     host_ldflags
1183     host_libs
1184     host_os
1185     ld
1186     logfile
1187     malloc_prefix
1188     nm
1189     optflags
1190     pkg_config
1191     samples
1192     sysinclude
1193     sysroot
1194     target_exec
1195     target_os
1196     target_path
1197 "
1198
1199 CMDLINE_APPEND="
1200     extra_cflags
1201 "
1202
1203 # code dependency declarations
1204
1205 # architecture extensions
1206
1207 armv5te_deps="arm"
1208 armv6_deps="arm"
1209 armv6t2_deps="arm"
1210 armvfp_deps="arm"
1211 iwmmxt_deps="arm"
1212 neon_deps="arm"
1213 vfpv3_deps="armvfp"
1214
1215 mmi_deps="mips"
1216
1217 altivec_deps="ppc"
1218 ppc4xx_deps="ppc"
1219
1220 vis_deps="sparc"
1221
1222 x86_64_suggest="cmov fast_cmov"
1223 amd3dnow_deps="mmx"
1224 amd3dnowext_deps="amd3dnow"
1225 mmx_deps="x86"
1226 mmx2_deps="mmx"
1227 sse_deps="mmx"
1228 ssse3_deps="sse"
1229 avx_deps="ssse3"
1230
1231 aligned_stack_if_any="ppc x86"
1232 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1233 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1234 fast_unaligned_if_any="armv6 ppc x86"
1235
1236 need_memalign="altivec neon sse"
1237 inline_asm_deps="!tms470"
1238
1239 symver_if_any="symver_asm_label symver_gnu_asm"
1240
1241 # subsystems
1242 dct_select="rdft"
1243 mdct_select="fft"
1244 rdft_select="fft"
1245 mpegaudiodsp_select="dct"
1246
1247 # decoders / encoders / hardware accelerators
1248 aac_decoder_select="mdct sinewin"
1249 aac_encoder_select="mdct sinewin"
1250 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1251 ac3_decoder_select="mdct ac3dsp ac3_parser"
1252 ac3_encoder_select="mdct ac3dsp"
1253 ac3_fixed_encoder_select="mdct ac3dsp"
1254 alac_encoder_select="lpc"
1255 amrnb_decoder_select="lsp"
1256 amrwb_decoder_select="lsp"
1257 atrac1_decoder_select="mdct sinewin"
1258 atrac3_decoder_select="mdct"
1259 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1260 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1261 cavs_decoder_select="golomb"
1262 cook_decoder_select="mdct sinewin"
1263 cscd_decoder_suggest="zlib"
1264 dca_decoder_select="mdct"
1265 dnxhd_encoder_select="aandct"
1266 dxa_decoder_select="zlib"
1267 eac3_decoder_select="ac3_decoder"
1268 eac3_encoder_select="mdct ac3dsp"
1269 eamad_decoder_select="aandct"
1270 eatgq_decoder_select="aandct"
1271 eatqi_decoder_select="aandct"
1272 ffv1_decoder_select="golomb"
1273 flac_decoder_select="golomb"
1274 flac_encoder_select="golomb lpc"
1275 flashsv_decoder_select="zlib"
1276 flashsv_encoder_select="zlib"
1277 flashsv2_decoder_select="zlib"
1278 flv_decoder_select="h263_decoder"
1279 flv_encoder_select="h263_encoder"
1280 fraps_decoder_select="huffman"
1281 h261_encoder_select="aandct"
1282 h263_decoder_select="h263_parser"
1283 h263_encoder_select="aandct"
1284 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1285 h263i_decoder_select="h263_decoder"
1286 h263p_encoder_select="h263_encoder"
1287 h264_decoder_select="golomb h264dsp h264pred"
1288 h264_dxva2_hwaccel_deps="dxva2api_h"
1289 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1290 h264_vaapi_hwaccel_select="vaapi"
1291 h264_vdpau_decoder_select="vdpau h264_decoder"
1292 imc_decoder_select="fft mdct sinewin"
1293 jpegls_decoder_select="golomb"
1294 jpegls_encoder_select="golomb"
1295 ljpeg_encoder_select="aandct"
1296 loco_decoder_select="golomb"
1297 mjpeg_encoder_select="aandct"
1298 mlp_decoder_select="mlp_parser"
1299 mp1_decoder_select="mpegaudiodsp"
1300 mp2_decoder_select="mpegaudiodsp"
1301 mp3adu_decoder_select="mpegaudiodsp"
1302 mp3_decoder_select="mpegaudiodsp"
1303 mp3on4_decoder_select="mpegaudiodsp"
1304 mp1float_decoder_select="mpegaudiodsp"
1305 mp2float_decoder_select="mpegaudiodsp"
1306 mp3adufloat_decoder_select="mpegaudiodsp"
1307 mp3float_decoder_select="mpegaudiodsp"
1308 mp3on4float_decoder_select="mpegaudiodsp"
1309 mpeg1video_encoder_select="aandct"
1310 mpeg2video_encoder_select="aandct"
1311 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1312 mpeg4_encoder_select="h263_encoder"
1313 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1314 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1315 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1316 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1317 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1318 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1319 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1320 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1321 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1322 msmpeg4v1_decoder_select="h263_decoder"
1323 msmpeg4v1_encoder_select="h263_encoder"
1324 msmpeg4v2_decoder_select="h263_decoder"
1325 msmpeg4v2_encoder_select="h263_encoder"
1326 msmpeg4v3_decoder_select="h263_decoder"
1327 msmpeg4v3_encoder_select="h263_encoder"
1328 nellymoser_decoder_select="mdct sinewin"
1329 nellymoser_encoder_select="mdct sinewin"
1330 png_decoder_select="zlib"
1331 png_encoder_select="zlib"
1332 qcelp_decoder_select="lsp"
1333 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1334 ra_144_encoder_select="lpc"
1335 rv10_decoder_select="h263_decoder"
1336 rv10_encoder_select="h263_encoder"
1337 rv20_decoder_select="h263_decoder"
1338 rv20_encoder_select="h263_encoder"
1339 rv30_decoder_select="golomb h264pred"
1340 rv40_decoder_select="golomb h264pred"
1341 shorten_decoder_select="golomb"
1342 sipr_decoder_select="lsp"
1343 snow_decoder_select="dwt"
1344 snow_encoder_select="aandct dwt"
1345 svq1_encoder_select="aandct"
1346 svq3_decoder_select="golomb h264dsp h264pred"
1347 svq3_decoder_suggest="zlib"
1348 theora_decoder_select="vp3_decoder"
1349 tiff_decoder_suggest="zlib"
1350 tiff_encoder_suggest="zlib"
1351 truehd_decoder_select="mlp_decoder"
1352 tscc_decoder_select="zlib"
1353 twinvq_decoder_select="mdct lsp sinewin"
1354 vc1_decoder_select="h263_decoder"
1355 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1356 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1357 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1358 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1359 vc1image_decoder_select="vc1_decoder"
1360 vorbis_decoder_select="mdct"
1361 vorbis_encoder_select="mdct"
1362 vp6_decoder_select="huffman"
1363 vp6a_decoder_select="vp6_decoder"
1364 vp6f_decoder_select="vp6_decoder"
1365 vp8_decoder_select="h264pred"
1366 wmapro_decoder_select="mdct sinewin"
1367 wmav1_decoder_select="mdct sinewin"
1368 wmav1_encoder_select="mdct sinewin"
1369 wmav2_decoder_select="mdct sinewin"
1370 wmav2_encoder_select="mdct sinewin"
1371 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1372 wmv1_decoder_select="h263_decoder"
1373 wmv1_encoder_select="h263_encoder"
1374 wmv2_decoder_select="h263_decoder"
1375 wmv2_encoder_select="h263_encoder"
1376 wmv3_decoder_select="vc1_decoder"
1377 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1378 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1379 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1380 wmv3image_decoder_select="wmv3_decoder"
1381 zlib_decoder_select="zlib"
1382 zlib_encoder_select="zlib"
1383 zmbv_decoder_select="zlib"
1384 zmbv_encoder_select="zlib"
1385
1386 vaapi_deps="va_va_h"
1387 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1388
1389 # parsers
1390 h264_parser_select="golomb h264dsp h264pred"
1391
1392 # external libraries
1393 libdirac_decoder_deps="libdirac !libschroedinger"
1394 libdirac_encoder_deps="libdirac"
1395 libfaac_encoder_deps="libfaac"
1396 libgsm_decoder_deps="libgsm"
1397 libgsm_encoder_deps="libgsm"
1398 libgsm_ms_decoder_deps="libgsm"
1399 libgsm_ms_encoder_deps="libgsm"
1400 libmp3lame_encoder_deps="libmp3lame"
1401 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1402 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1403 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1404 libopenjpeg_decoder_deps="libopenjpeg"
1405 libschroedinger_decoder_deps="libschroedinger"
1406 libschroedinger_encoder_deps="libschroedinger"
1407 libspeex_decoder_deps="libspeex"
1408 libtheora_encoder_deps="libtheora"
1409 libvo_aacenc_encoder_deps="libvo_aacenc"
1410 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1411 libvorbis_encoder_deps="libvorbis"
1412 libvpx_decoder_deps="libvpx"
1413 libvpx_encoder_deps="libvpx"
1414 libx264_encoder_deps="libx264"
1415 libxavs_encoder_deps="libxavs"
1416 libxvid_encoder_deps="libxvid"
1417
1418 # demuxers / muxers
1419 ac3_demuxer_select="ac3_parser"
1420 asf_stream_muxer_select="asf_muxer"
1421 avisynth_demuxer_deps="avisynth"
1422 dirac_demuxer_select="dirac_parser"
1423 eac3_demuxer_select="ac3_parser"
1424 flac_demuxer_select="flac_parser"
1425 ipod_muxer_select="mov_muxer"
1426 libnut_demuxer_deps="libnut"
1427 libnut_muxer_deps="libnut"
1428 matroska_audio_muxer_select="matroska_muxer"
1429 matroska_demuxer_suggest="zlib bzlib"
1430 mov_demuxer_suggest="zlib"
1431 mp3_demuxer_select="mpegaudio_parser"
1432 mp4_muxer_select="mov_muxer"
1433 mpegtsraw_demuxer_select="mpegts_demuxer"
1434 mxf_d10_muxer_select="mxf_muxer"
1435 ogg_demuxer_select="golomb"
1436 psp_muxer_select="mov_muxer"
1437 rtp_demuxer_select="sdp_demuxer"
1438 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1439 rtsp_demuxer_select="http_protocol rtpdec"
1440 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1441 sap_demuxer_select="sdp_demuxer"
1442 sap_muxer_select="rtp_muxer rtp_protocol"
1443 sdp_demuxer_select="rtpdec"
1444 spdif_muxer_select="aac_parser"
1445 tg2_muxer_select="mov_muxer"
1446 tgp_muxer_select="mov_muxer"
1447 w64_demuxer_deps="wav_demuxer"
1448
1449 # indevs / outdevs
1450 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1451 alsa_outdev_deps="alsa_asoundlib_h"
1452 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1453 dv1394_indev_deps="dv1394 dv_demuxer"
1454 fbdev_indev_deps="linux_fb_h"
1455 jack_indev_deps="jack_jack_h"
1456 libcdio_indev_deps="libcdio"
1457 libdc1394_indev_deps="libdc1394"
1458 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1459 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1460 sndio_indev_deps="sndio_h"
1461 sndio_outdev_deps="sndio_h"
1462 v4l_indev_deps="linux_videodev_h"
1463 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1464 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1465 vfwcap_indev_extralibs="-lavicap32"
1466 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1467 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1468
1469 # protocols
1470 gopher_protocol_deps="network"
1471 http_protocol_deps="network"
1472 http_protocol_select="tcp_protocol"
1473 mmsh_protocol_select="http_protocol"
1474 mmst_protocol_deps="network"
1475 rtmp_protocol_select="tcp_protocol"
1476 rtp_protocol_select="udp_protocol"
1477 tcp_protocol_deps="network"
1478 udp_protocol_deps="network"
1479
1480 # filters
1481 blackframe_filter_deps="gpl"
1482 cropdetect_filter_deps="gpl"
1483 drawtext_filter_deps="libfreetype"
1484 frei0r_filter_deps="frei0r dlopen strtok_r"
1485 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1486 hqdn3d_filter_deps="gpl"
1487 ocv_filter_deps="libopencv"
1488 scale_filter_deps="swscale"
1489 yadif_filter_deps="gpl"
1490
1491 # libraries
1492 avdevice_deps="avcodec avformat"
1493 avformat_deps="avcodec"
1494 postproc_deps="gpl"
1495
1496 # programs
1497 ffmpeg_deps="avcodec avformat swscale"
1498 ffmpeg_select="buffer_filter"
1499 avconv_deps="avcodec avformat swscale"
1500 avconv_select="buffer_filter"
1501 avplay_deps="avcodec avformat swscale sdl"
1502 avplay_select="rdft"
1503 avprobe_deps="avcodec avformat"
1504 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1505 avserver_extralibs='$ldl'
1506
1507 doc_deps="texi2html"
1508
1509 # tests
1510
1511 test_deps(){
1512     suf1=$1
1513     suf2=$2
1514     shift 2
1515     for v; do
1516         dep=${v%=*}
1517         tests=${v#*=}
1518         for name in ${tests}; do
1519             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1520         done
1521     done
1522 }
1523
1524 test_deps _encoder _decoder                                             \
1525     adpcm_g726=g726                                                     \
1526     adpcm_ima_qt                                                        \
1527     adpcm_ima_wav                                                       \
1528     adpcm_ms                                                            \
1529     adpcm_swf                                                           \
1530     adpcm_yamaha=adpcm_yam                                              \
1531     alac                                                                \
1532     asv1                                                                \
1533     asv2                                                                \
1534     bmp                                                                 \
1535     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1536     dvvideo="dv dv50"                                                   \
1537     ffv1                                                                \
1538     flac                                                                \
1539     flashsv                                                             \
1540     flv                                                                 \
1541     gif                                                                 \
1542     h261                                                                \
1543     h263="h263 h263p"                                                   \
1544     huffyuv                                                             \
1545     jpegls                                                              \
1546     mjpeg="jpg mjpeg ljpeg"                                             \
1547     mp2                                                                 \
1548     mpeg1video="mpeg mpeg1b"                                            \
1549     mpeg2video="mpeg2 mpeg2thread"                                      \
1550     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1551     msmpeg4v3=msmpeg4                                                   \
1552     msmpeg4v2                                                           \
1553     pbm=pbmpipe                                                         \
1554     pcx                                                                 \
1555     pgm="pgm pgmpipe"                                                   \
1556     png                                                                 \
1557     ppm="ppm ppmpipe"                                                   \
1558     rawvideo="rgb yuv"                                                  \
1559     roq                                                                 \
1560     rv10                                                                \
1561     rv20                                                                \
1562     sgi                                                                 \
1563     snow="snow snowll"                                                  \
1564     svq1                                                                \
1565     targa=tga                                                           \
1566     tiff                                                                \
1567     wmav1                                                               \
1568     wmav2                                                               \
1569     wmv1                                                                \
1570     wmv2                                                                \
1571
1572 test_deps _muxer _demuxer                                               \
1573     aiff                                                                \
1574     pcm_alaw=alaw                                                       \
1575     asf                                                                 \
1576     au                                                                  \
1577     avi                                                                 \
1578     dv=dv_fmt                                                           \
1579     ffm                                                                 \
1580     flv=flv_fmt                                                         \
1581     gxf                                                                 \
1582     matroska=mkv                                                        \
1583     mmf                                                                 \
1584     mov                                                                 \
1585     pcm_mulaw=mulaw                                                     \
1586     mxf="mxf mxf_d10"                                                   \
1587     nut                                                                 \
1588     ogg                                                                 \
1589     rawvideo=pixfmt                                                     \
1590     rm                                                                  \
1591     swf                                                                 \
1592     mpegts=ts                                                           \
1593     voc                                                                 \
1594     wav                                                                 \
1595     yuv4mpegpipe=yuv4mpeg                                               \
1596
1597 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1598 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1599
1600 # default parameters
1601
1602 logfile="config.log"
1603
1604 # installation paths
1605 prefix_default="/usr/local"
1606 bindir_default='${prefix}/bin'
1607 datadir_default='${prefix}/share/avconv'
1608 incdir_default='${prefix}/include'
1609 libdir_default='${prefix}/lib'
1610 mandir_default='${prefix}/share/man'
1611 shlibdir_default="$libdir_default"
1612
1613 # toolchain
1614 ar_default="ar"
1615 cc_default="gcc"
1616 cc_version=\"unknown\"
1617 host_cc_default="gcc"
1618 ln_s="ln -sf"
1619 nm_default="nm"
1620 objformat="elf"
1621 pkg_config_default=pkg-config
1622 ranlib="ranlib"
1623 yasmexe="yasm"
1624 nogas=":"
1625
1626 nm_opts='-g'
1627
1628 # machine
1629 arch_default=$(uname -m)
1630 cpu="generic"
1631
1632 # OS
1633 target_os_default=$(tolower $(uname -s))
1634 host_os=$target_os_default
1635
1636 # configurable options
1637 enable avcodec
1638 enable avdevice
1639 enable avfilter
1640 enable avformat
1641 enable avutil
1642 enable asm
1643 enable debug
1644 enable doc
1645 enable fastdiv
1646 enable ffmpeg
1647 enable avconv
1648 enable avplay
1649 enable avprobe
1650 enable avserver
1651 enable network
1652 enable optimizations
1653 enable postproc
1654 enable protocols
1655 enable static
1656 enable swscale
1657 enable swscale_alpha
1658
1659 # build settings
1660 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1661 AVSERVERLDFLAGS=-Wl,-E
1662 LIBPREF="lib"
1663 LIBSUF=".a"
1664 FULLNAME='$(NAME)$(BUILDSUF)'
1665 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1666 SLIBPREF="lib"
1667 SLIBSUF=".so"
1668 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1669 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1670 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1671 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1672 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1673 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1674
1675 AS_O='-o $@'
1676 CC_O='-o $@'
1677
1678 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1679 host_libs='-lm'
1680
1681 target_path='$(CURDIR)'
1682
1683 # since the object filename is not given with the -MM flag, the compiler
1684 # is only able to print the basename, and we must add the path ourselves
1685 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1686 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1687
1688 # find source path
1689 if test -f configure; then
1690     source_path=.
1691 else
1692     source_path=$(cd $(dirname "$0"); pwd)
1693     echo "$source_path" | grep -q '[[:blank:]]' &&
1694         die "Out of tree builds are impossible with whitespace in source path."
1695     test -e "$source_path/config.h" &&
1696         die "Out of tree builds are impossible with config.h in source dir."
1697 fi
1698
1699 for v in "$@"; do
1700     r=${v#*=}
1701     l=${v%"$r"}
1702     r=$(sh_quote "$r")
1703     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1704 done
1705
1706 find_things(){
1707     thing=$1
1708     pattern=$2
1709     file=$source_path/$3
1710     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1711 }
1712
1713 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1714 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1715 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1716 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1717 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1718 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1719 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1720 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1721 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1722 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1723 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1724
1725 find_tests(){
1726     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1727 }
1728
1729 ACODEC_TESTS=$(find_tests acodec)
1730 VCODEC_TESTS=$(find_tests vsynth1)
1731 LAVF_TESTS=$(find_tests lavf)
1732 LAVFI_TESTS=$(find_tests lavfi)
1733 SEEK_TESTS=$(find_tests seek seek_)
1734
1735 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1736
1737 for n in $COMPONENT_LIST; do
1738     v=$(toupper ${n%s})_LIST
1739     eval enable \$$v
1740     eval ${n}_if_any="\$$v"
1741 done
1742
1743 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1744
1745 die_unknown(){
1746     echo "Unknown option \"$1\"."
1747     echo "See $0 --help for available options."
1748     exit 1
1749 }
1750
1751 show_list() {
1752     suffix=_$1
1753     shift
1754     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1755     exit 0
1756 }
1757
1758 for opt do
1759     optval="${opt#*=}"
1760     case "$opt" in
1761     --extra-ldflags=*) add_ldflags $optval
1762     ;;
1763     --extra-libs=*) add_extralibs $optval
1764     ;;
1765     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1766     ;;
1767     --enable-debug=*) debuglevel="$optval"
1768     ;;
1769     --disable-everything)
1770     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1771     ;;
1772     --enable-*=*|--disable-*=*)
1773     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1774     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1775     eval list=\$$(toupper $thing)_LIST
1776     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1777     $action $(filter "$name" $list)
1778     ;;
1779     --enable-?*|--disable-?*)
1780     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1781     if is_in $option $COMPONENT_LIST; then
1782         test $action = disable && action=unset
1783         eval $action \$$(toupper ${option%s})_LIST
1784     elif is_in $option $CMDLINE_SELECT; then
1785         $action $option
1786     else
1787         die_unknown $opt
1788     fi
1789     ;;
1790     --list-*)
1791         NAME="${opt#--list-}"
1792         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1793         NAME=${NAME%s}
1794         eval show_list $NAME \$$(toupper $NAME)_LIST
1795     ;;
1796     --help|-h) show_help
1797     ;;
1798     *)
1799     optname="${opt%%=*}"
1800     optname="${optname#--}"
1801     optname=$(echo "$optname" | sed 's/-/_/g')
1802     if is_in $optname $CMDLINE_SET; then
1803         eval $optname='$optval'
1804     elif is_in $optname $CMDLINE_APPEND; then
1805         append $optname "$optval"
1806     else
1807          die_unknown $opt
1808     fi
1809     ;;
1810     esac
1811 done
1812
1813 disabled logging && logfile=/dev/null
1814
1815 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1816 set >> $logfile
1817
1818 test -n "$cross_prefix" && enable cross_compile
1819
1820 if enabled cross_compile; then
1821     test -n "$arch" && test -n "$target_os" ||
1822         die "Must specify target arch and OS when cross-compiling"
1823 fi
1824
1825 set_default arch target_os
1826
1827 ar_default="${cross_prefix}${ar_default}"
1828 cc_default="${cross_prefix}${cc_default}"
1829 nm_default="${cross_prefix}${nm_default}"
1830 pkg_config_default="${cross_prefix}${pkg_config_default}"
1831 ranlib="${cross_prefix}${ranlib}"
1832
1833 sysinclude_default="${sysroot}/usr/include"
1834
1835 set_default cc nm pkg_config sysinclude
1836 enabled cross_compile || host_cc_default=$cc
1837 set_default host_cc
1838
1839 if ! $pkg_config --version >/dev/null 2>&1; then
1840     warn "$pkg_config not found, library detection may fail."
1841     pkg_config=false
1842 fi
1843
1844 exesuf() {
1845     case $1 in
1846         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1847     esac
1848 }
1849
1850 EXESUF=$(exesuf $target_os)
1851 HOSTEXESUF=$(exesuf $host_os)
1852
1853 # set temporary file name
1854 : ${TMPDIR:=$TEMPDIR}
1855 : ${TMPDIR:=$TMP}
1856 : ${TMPDIR:=/tmp}
1857
1858 if ! check_cmd mktemp -u XXXXXX; then
1859     # simple replacement for missing mktemp
1860     # NOT SAFE FOR GENERAL USE
1861     mktemp(){
1862         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1863     }
1864 fi
1865
1866 tmpfile(){
1867     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1868         (set -C; exec > $tmp) 2>/dev/null ||
1869         die "Unable to create temporary file in $TMPDIR."
1870     append TMPFILES $tmp
1871     eval $1=$tmp
1872 }
1873
1874 trap 'rm -f -- $TMPFILES' EXIT
1875
1876 tmpfile TMPC  .c
1877 tmpfile TMPE  $EXESUF
1878 tmpfile TMPH  .h
1879 tmpfile TMPO  .o
1880 tmpfile TMPS  .S
1881 tmpfile TMPV  .ver
1882 tmpfile TMPSH .sh
1883 tmpfile TMPASM .asm
1884
1885 unset -f mktemp
1886
1887 chmod +x $TMPE
1888
1889 # make sure we can execute files in $TMPDIR
1890 cat > $TMPSH 2>> $logfile <<EOF
1891 #! /bin/sh
1892 EOF
1893 chmod +x $TMPSH >> $logfile 2>&1
1894 if ! $TMPSH >> $logfile 2>&1; then
1895     cat <<EOF
1896 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1897 variable to another directory and make sure that it is not mounted noexec.
1898 EOF
1899     die "Sanity test failed."
1900 fi
1901
1902 filter_cflags=echo
1903 filter_cppflags=echo
1904 filter_asflags=echo
1905
1906 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1907     cc_type=llvm_gcc
1908     cc_version=__VERSION__
1909     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1910     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1911     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1912     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1913     speed_cflags='-O3'
1914     size_cflags='-Os'
1915 elif $cc -v 2>&1 | grep -qi ^gcc; then
1916     cc_type=gcc
1917     cc_version=__VERSION__
1918     gcc_version=$($cc --version | head -n1)
1919     gcc_basever=$($cc -dumpversion)
1920     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1921     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1922     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1923     if ! $cc -dumpversion | grep -q '^2\.'; then
1924         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1925         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1926     fi
1927     speed_cflags='-O3'
1928     size_cflags='-Os'
1929 elif $cc --version 2>/dev/null | grep -q Intel; then
1930     cc_type=icc
1931     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1932     cc_ident=$($cc --version | head -n1)
1933     icc_version=$($cc -dumpversion)
1934     CC_DEPFLAGS='-MMD'
1935     AS_DEPFLAGS='-MMD'
1936     speed_cflags='-O3'
1937     size_cflags='-Os'
1938     noopt_cflags='-O1'
1939 elif $cc -v 2>&1 | grep -q xlc; then
1940     cc_type=xlc
1941     cc_version="AV_STRINGIFY(__IBMC__)"
1942     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1943     speed_cflags='-O5'
1944     size_cflags='-O5 -qcompact'
1945 elif $cc -V 2>/dev/null | grep -q Compaq; then
1946     cc_type=ccc
1947     cc_version="AV_STRINGIFY(__DECC_VER)"
1948     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1949     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1950     debuglevel=3
1951     add_ldflags -Wl,-z,now # calls to libots crash without this
1952     speed_cflags='-fast'
1953     size_cflags='-O1'
1954 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1955     test -d "$sysroot" || die "No valid sysroot specified."
1956     cc_type=armcc
1957     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1958     cc_ident=$($cc --vsn | head -n1)
1959     armcc_conf="$PWD/armcc.conf"
1960     $cc --arm_linux_configure                 \
1961         --arm_linux_config_file="$armcc_conf" \
1962         --configure_sysroot="$sysroot"        \
1963         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1964         die "Error creating armcc configuration file."
1965     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1966     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1967     as_default="${cross_prefix}gcc"
1968     CC_DEPFLAGS='-MMD'
1969     AS_DEPFLAGS='-MMD'
1970     speed_cflags='-O3'
1971     size_cflags='-Os'
1972     filter_asflags="filter_out -W${armcc_opt}*"
1973 elif $cc -version 2>/dev/null | grep -q TMS470; then
1974     cc_type=tms470
1975     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1976     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1977     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1978     CC_O='-fr=$(@D)'
1979     as_default="${cross_prefix}gcc"
1980     ld_default="${cross_prefix}gcc"
1981     TMPO=$(basename $TMPC .c).o
1982     append TMPFILES $TMPO
1983     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1984     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1985     AS_DEPFLAGS='-MMD'
1986     speed_cflags='-O3 -mf=5'
1987     size_cflags='-O3 -mf=2'
1988     filter_cflags=tms470_flags
1989     tms470_flags(){
1990         for flag; do
1991             case $flag in
1992                 -march=*|-mcpu=*)
1993                     case "${flag#*=}" in
1994                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1995                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1996                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1997                         armv6*|arm11*)          echo -mv=6   ;;
1998                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1999                                                 echo -mv=5e  ;;
2000                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2001                     esac
2002                     ;;
2003                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2004                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2005                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2006                 -msoft-float)   echo --float_support=vfplib       ;;
2007                 -O[0-3]|-mf=*)  echo $flag                        ;;
2008                 -g)             echo -g -mn                       ;;
2009                 -pds=*)         echo $flag                        ;;
2010             esac
2011         done
2012     }
2013 elif $cc -v 2>&1 | grep -q clang; then
2014     cc_type=clang
2015     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2016         cc_version=__clang_version__ || cc_version=__VERSION__
2017     cc_ident=$($cc --version | head -n1)
2018     CC_DEPFLAGS='-MMD'
2019     AS_DEPFLAGS='-MMD'
2020     speed_cflags='-O3'
2021     size_cflags='-Os'
2022 elif $cc -V 2>&1 | grep -q Sun; then
2023     cc_type=suncc
2024     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2025     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2026     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2027     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2028     add_ldflags -xc99
2029     speed_cflags='-O5'
2030     size_cflags='-O5 -xspace'
2031     filter_cflags=suncc_flags
2032     suncc_flags(){
2033         for flag; do
2034             case $flag in
2035                 -march=*|-mcpu=*)
2036                     case "${flag#*=}" in
2037                         native)                   echo -xtarget=native       ;;
2038                         v9|niagara)               echo -xarch=sparc          ;;
2039                         ultrasparc)               echo -xarch=sparcvis       ;;
2040                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2041                         i586|pentium)             echo -xchip=pentium        ;;
2042                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2043                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2044                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2045                         pentium4*)          echo -xtarget=pentium4           ;;
2046                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2047                         *-sse3)             echo -xarch=sse3                 ;;
2048                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2049                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2050                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2051                         k8|opteron|athlon64|athlon-fx)
2052                                                   echo -xarch=sse2a          ;;
2053                         athlon*)                  echo -xarch=pentium_proa   ;;
2054                     esac
2055                     ;;
2056                 -std=c99)             echo -xc99              ;;
2057                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2058                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2059                 -W*,*)                echo $flag              ;;
2060                 -f*-*|-W*)                                    ;;
2061                 *)                    echo $flag              ;;
2062             esac
2063         done
2064     }
2065 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2066     cc_type=pathscale
2067     cc_version=__PATHSCALE__
2068     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2069     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2070     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071     speed_cflags='-O2'
2072     size_cflags='-Os'
2073     filter_cflags='filter_out -Wdisabled-optimization'
2074 elif $cc -v 2>&1 | grep -q Open64; then
2075     cc_type=open64
2076     cc_version=__OPEN64__
2077     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2078     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2079     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2080     speed_cflags='-O2'
2081     size_cflags='-Os'
2082     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2083 fi
2084
2085 test -n "$cc_type" && enable $cc_type ||
2086     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2087
2088 : ${as_default:=$cc}
2089 : ${dep_cc_default:=$cc}
2090 : ${ld_default:=$cc}
2091 set_default ar as dep_cc ld
2092
2093 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2094 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2095
2096 add_cflags $extra_cflags
2097 add_asflags $extra_cflags
2098
2099 if test -n "$sysroot"; then
2100     case "$cc_type" in
2101         gcc|llvm_gcc|clang)
2102             add_cppflags --sysroot="$sysroot"
2103             add_ldflags --sysroot="$sysroot"
2104         ;;
2105         tms470)
2106             add_cppflags -I"$sysinclude"
2107             add_ldflags  --sysroot="$sysroot"
2108         ;;
2109     esac
2110 fi
2111
2112 if test "$cpu" = host; then
2113     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2114
2115     case "$cc_type" in
2116         gcc|llvm_gcc)
2117             check_native(){
2118                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2119                 sed -n "/cc1.*$1=/{
2120                             s/.*$1=\\([^ ]*\\).*/\\1/
2121                             p
2122                             q
2123                         }" $TMPE
2124             }
2125             cpu=$(check_native -march || check_native -mcpu)
2126         ;;
2127     esac
2128
2129     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2130 fi
2131
2132 # Deal with common $arch aliases
2133 case "$arch" in
2134     arm*)
2135         arch="arm"
2136     ;;
2137     mips|mipsel|IP*)
2138         arch="mips"
2139     ;;
2140     mips64*)
2141         arch="mips"
2142         subarch="mips64"
2143     ;;
2144     parisc|hppa)
2145         arch="parisc"
2146     ;;
2147     parisc64|hppa64)
2148         arch="parisc"
2149         subarch="parisc64"
2150     ;;
2151     "Power Macintosh"|ppc|powerpc)
2152         arch="ppc"
2153     ;;
2154     ppc64|powerpc64)
2155         arch="ppc"
2156         subarch="ppc64"
2157     ;;
2158     s390|s390x)
2159         arch="s390"
2160     ;;
2161     sh4|sh)
2162         arch="sh4"
2163     ;;
2164     sun4u|sparc64)
2165         arch="sparc"
2166         subarch="sparc64"
2167     ;;
2168     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2169         arch="x86"
2170     ;;
2171 esac
2172
2173 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2174 enable $arch
2175
2176 # Add processor-specific flags
2177 if test "$cpu" = generic; then
2178     : do nothing
2179 elif enabled ppc; then
2180
2181     case $(tolower $cpu) in
2182         601|ppc601|powerpc601)
2183             cpuflags="-mcpu=601"
2184             disable altivec
2185         ;;
2186         603*|ppc603*|powerpc603*)
2187             cpuflags="-mcpu=603"
2188             disable altivec
2189         ;;
2190         604*|ppc604*|powerpc604*)
2191             cpuflags="-mcpu=604"
2192             disable altivec
2193         ;;
2194         g3|75*|ppc75*|powerpc75*)
2195             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2196             disable altivec
2197         ;;
2198         g4|745*|ppc745*|powerpc745*)
2199             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2200         ;;
2201         74*|ppc74*|powerpc74*)
2202             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2203         ;;
2204         g5|970|ppc970|powerpc970|power4*)
2205             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2206         ;;
2207         cell)
2208             cpuflags="-mcpu=cell"
2209             enable ldbrx
2210         ;;
2211         e500v2)
2212             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2213             disable altivec
2214         ;;
2215         e500)
2216             cpuflags="-mcpu=8540 -mhard-float"
2217             disable altivec
2218         ;;
2219     esac
2220
2221 elif enabled x86; then
2222
2223     case $cpu in
2224         i[345]86|pentium)
2225             cpuflags="-march=$cpu"
2226             disable mmx
2227         ;;
2228         # targets that do NOT support conditional mov (cmov)
2229         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2230             cpuflags="-march=$cpu"
2231             disable cmov
2232         ;;
2233         # targets that do support conditional mov (cmov)
2234         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2235             cpuflags="-march=$cpu"
2236             enable cmov
2237             enable fast_cmov
2238         ;;
2239         # targets that do support conditional mov but on which it's slow
2240         pentium4|pentium4m|prescott|nocona)
2241             cpuflags="-march=$cpu"
2242             enable cmov
2243             disable fast_cmov
2244         ;;
2245     esac
2246
2247 elif enabled sparc; then
2248
2249     case $cpu in
2250         niagara)
2251             cpuflags="-mcpu=$cpu"
2252             disable vis
2253         ;;
2254         sparc64)
2255             cpuflags="-mcpu=v9"
2256         ;;
2257     esac
2258
2259 elif enabled arm; then
2260
2261     case $cpu in
2262         armv*)
2263             cpuflags="-march=$cpu"
2264             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2265         ;;
2266         *)
2267             cpuflags="-mcpu=$cpu"
2268             case $cpu in
2269                 cortex-a*)                               subarch=armv7a  ;;
2270                 cortex-r*)                               subarch=armv7r  ;;
2271                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2272                 arm11*)                                  subarch=armv6   ;;
2273                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2274                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2275             esac
2276         ;;
2277     esac
2278
2279 elif enabled alpha; then
2280
2281     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2282
2283 elif enabled bfin; then
2284
2285     cpuflags="-mcpu=$cpu"
2286
2287 elif enabled mips; then
2288
2289     cpuflags="-march=$cpu"
2290
2291 elif enabled avr32; then
2292
2293     case $cpu in
2294         ap7[02]0[0-2])
2295             subarch="avr32_ap"
2296             cpuflags="-mpart=$cpu"
2297         ;;
2298         ap)
2299             subarch="avr32_ap"
2300             cpuflags="-march=$cpu"
2301         ;;
2302         uc3[ab]*)
2303             subarch="avr32_uc"
2304             cpuflags="-mcpu=$cpu"
2305         ;;
2306         uc)
2307             subarch="avr32_uc"
2308             cpuflags="-march=$cpu"
2309         ;;
2310     esac
2311
2312 fi
2313
2314 add_cflags $cpuflags
2315 add_asflags $cpuflags
2316
2317 # compiler sanity check
2318 check_exec <<EOF
2319 int main(void){ return 0; }
2320 EOF
2321 if test "$?" != 0; then
2322     echo "$cc is unable to create an executable file."
2323     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2324         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2325         echo "Only do this if you know what cross compiling means."
2326     fi
2327     die "C compiler test failed."
2328 fi
2329
2330 add_cppflags -D_ISOC99_SOURCE
2331 check_cflags -std=c99
2332 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2333 #include <stdlib.h>
2334 EOF
2335 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2336 #include <stdlib.h>
2337 EOF
2338
2339 check_host_cflags -std=c99
2340 check_host_cflags -Wall
2341
2342 case "$arch" in
2343     alpha|ia64|mips|parisc|sparc)
2344         spic=$shared
2345     ;;
2346     x86)
2347         subarch="x86_32"
2348         check_cc <<EOF && subarch="x86_64"
2349         int test[(int)sizeof(char*) - 7];
2350 EOF
2351         if test "$subarch" = "x86_64"; then
2352             spic=$shared
2353         fi
2354     ;;
2355 esac
2356
2357 enable $subarch
2358 enabled spic && enable pic
2359
2360 # OS specific
2361 case $target_os in
2362     haiku)
2363         prefix_default="/boot/common"
2364         network_extralibs="-lnetwork"
2365         host_libs=
2366         ;;
2367     sunos)
2368         AVSERVERLDFLAGS=""
2369         SHFLAGS='-shared -Wl,-h,$$(@F)'
2370         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2371         network_extralibs="-lsocket -lnsl"
2372         add_cppflags -D__EXTENSIONS__
2373         # When using suncc to build, the Solaris linker will mark
2374         # an executable with each instruction set encountered by
2375         # the Solaris assembler.  As our libraries contain their own
2376         # guards for processor-specific code, instead suppress
2377         # generation of the HWCAPS ELF section on Solaris x86 only.
2378         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2379         nm_opts='-P -g'
2380         ;;
2381     netbsd)
2382         disable symver
2383         oss_indev_extralibs="-lossaudio"
2384         oss_outdev_extralibs="-lossaudio"
2385         ;;
2386     openbsd)
2387         enable malloc_aligned
2388         # On OpenBSD 4.5. the compiler does not use PIC unless
2389         # explicitly using -fPIC. Libav builds fine without PIC,
2390         # however the generated executable will not do anything
2391         # (simply quits with exit-code 1, no crash, no output).
2392         # Thus explicitly enable PIC here.
2393         enable pic
2394         disable symver
2395         SHFLAGS='-shared'
2396         oss_indev_extralibs="-lossaudio"
2397         oss_outdev_extralibs="-lossaudio"
2398         ;;
2399     dragonfly)
2400         enable malloc_aligned
2401         disable symver
2402         ;;
2403     freebsd)
2404         enable malloc_aligned
2405         ;;
2406     bsd/os)
2407         add_extralibs -lpoll -lgnugetopt
2408         ;;
2409     darwin)
2410         enable malloc_aligned
2411         gas="gas-preprocessor.pl $cc"
2412         enabled ppc && add_asflags -force_cpusubtype_ALL
2413         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2414         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2415         add_ldflags -Wl,-dynamic,-search_paths_first
2416         SLIBSUF=".dylib"
2417         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2418         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2419         AVSERVERLDFLAGS=-Wl,-bind_at_load
2420         objformat="macho"
2421         enabled x86_64 && objformat="macho64"
2422         enabled_any pic shared ||
2423             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2424         ;;
2425     mingw32*)
2426         if test $target_os = "mingw32ce"; then
2427             disable network
2428         else
2429             target_os=mingw32
2430         fi
2431         LIBTARGET=i386
2432         if enabled x86_64; then
2433             enable malloc_aligned
2434             LIBTARGET="i386:x86-64"
2435         elif enabled arm; then
2436             LIBTARGET=arm-wince
2437         fi
2438         shlibdir_default="$bindir_default"
2439         SLIBPREF=""
2440         SLIBSUF=".dll"
2441         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2442         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2443         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2444         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2445         SLIB_INSTALL_LINKS=
2446         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2447         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2448         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'
2449         objformat="win32"
2450         dlltool="${cross_prefix}dlltool"
2451         enable dos_paths
2452         check_cflags -fno-common
2453         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2454                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2455                 die "ERROR: MinGW runtime version must be >= 3.15."
2456         add_cppflags -U__STRICT_ANSI__
2457         ;;
2458     cygwin*)
2459         target_os=cygwin
2460         shlibdir_default="$bindir_default"
2461         SLIBPREF="cyg"
2462         SLIBSUF=".dll"
2463         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2464         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2465         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2466         objformat="win32"
2467         enable dos_paths
2468         check_cflags -fno-common
2469         add_cppflags -U__STRICT_ANSI__
2470         ;;
2471     *-dos|freedos|opendos)
2472         network_extralibs="-lsocket"
2473         objformat="coff"
2474         enable dos_paths
2475         add_cppflags -U__STRICT_ANSI__
2476         ;;
2477     linux)
2478         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2479         enable dv1394
2480         ;;
2481     irix*)
2482         target_os=irix
2483         ranlib="echo ignoring ranlib"
2484         ;;
2485     os/2*)
2486         ln_s="cp -f"
2487         objformat="aout"
2488         add_cppflags -D_GNU_SOURCE
2489         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2490         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2491         AVSERVERLDFLAGS=""
2492         LIBSUF="_s.a"
2493         SLIBPREF=""
2494         SLIBSUF=".dll"
2495         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2496         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2497         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2498           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2499           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2500           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2501           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2502           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2503         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2504           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2505         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2506         enable dos_paths
2507         ;;
2508     gnu/kfreebsd)
2509         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2510         ;;
2511     gnu)
2512         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2513         ;;
2514     qnx)
2515         add_cppflags -D_QNX_SOURCE
2516         network_extralibs="-lsocket"
2517         ;;
2518     symbian)
2519         SLIBSUF=".dll"
2520         enable dos_paths
2521         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2522         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2523         add_ldflags -Wl,--target1-abs,--no-undefined \
2524                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2525                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2526         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2527                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2528                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2529         ;;
2530     none)
2531         ;;
2532     *)
2533         die "Unknown OS '$target_os'."
2534         ;;
2535 esac
2536
2537 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2538
2539 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2540
2541 set_default $PATHS_LIST
2542
2543 # we need to build at least one lib type
2544 if ! enabled_any static shared; then
2545     cat <<EOF
2546 At least one library type must be built.
2547 Specify --enable-static to build the static libraries or --enable-shared to
2548 build the shared libraries as well. To only build the shared libraries specify
2549 --disable-static in addition to --enable-shared.
2550 EOF
2551     exit 1;
2552 fi
2553
2554 die_license_disabled() {
2555     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2556 }
2557
2558 die_license_disabled gpl libcdio
2559 die_license_disabled gpl libx264
2560 die_license_disabled gpl libxavs
2561 die_license_disabled gpl libxvid
2562 die_license_disabled gpl x11grab
2563
2564 die_license_disabled nonfree libfaac
2565
2566 die_license_disabled version3 libopencore_amrnb
2567 die_license_disabled version3 libopencore_amrwb
2568 die_license_disabled version3 libvo_aacenc
2569 die_license_disabled version3 libvo_amrwbenc
2570
2571 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2572
2573 disabled optimizations || check_cflags -fomit-frame-pointer
2574
2575 enable_pic() {
2576     enable pic
2577     add_cppflags -DPIC
2578     add_cflags   -fPIC
2579     add_asflags  -fPIC
2580 }
2581
2582 enabled pic && enable_pic
2583
2584 check_cc <<EOF || die "Symbol mangling check failed."
2585 int ff_extern;
2586 EOF
2587 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2588 extern_prefix=${sym%%ff_extern*}
2589
2590 check_cc <<EOF && enable inline_asm
2591 void foo(void) { __asm__ volatile ("" ::); }
2592 EOF
2593
2594 _restrict=
2595 for restrict_keyword in restrict __restrict__ __restrict; do
2596     check_cc <<EOF && _restrict=$restrict_keyword && break
2597 void foo(char * $restrict_keyword p);
2598 EOF
2599 done
2600
2601 check_cc <<EOF && enable attribute_packed
2602 struct { int x; } __attribute__((packed)) x;
2603 EOF
2604
2605 check_cc <<EOF && enable attribute_may_alias
2606 union { int x; } __attribute__((may_alias)) x;
2607 EOF
2608
2609 check_cc <<EOF || die "endian test failed"
2610 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2611 EOF
2612 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2613
2614 if enabled alpha; then
2615
2616     check_cflags -mieee
2617
2618 elif enabled arm; then
2619
2620     enabled thumb && check_cflags -mthumb || check_cflags -marm
2621     nogas=die
2622
2623     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2624         enable vfp_args
2625     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2626         case "${cross_prefix:-$cc}" in
2627             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2628             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2629 __asm__ (".eabi_attribute 28, 1");
2630 int main(void) { return 0; }
2631 EOF
2632         esac
2633         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2634     fi
2635
2636     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2637     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2638     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2639     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2640     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2641     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2642     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2643
2644     enabled_all armv6t2 shared !pic && enable_pic
2645
2646 elif enabled mips; then
2647
2648     check_asm loongson '"dmult.g $1, $2, $3"'
2649     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2650
2651 elif enabled ppc; then
2652
2653     enable local_aligned_8 local_aligned_16
2654
2655     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2656     check_asm ibm_asm   '"add 0, 0, 0"'
2657     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2658     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2659
2660     # AltiVec flags: The FSF version of GCC differs from the Apple version
2661     if enabled altivec; then
2662         nogas=warn
2663         check_cflags -maltivec -mabi=altivec &&
2664         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2665         check_cflags -faltivec
2666
2667         # check if our compiler supports Motorola AltiVec C API
2668         check_cc <<EOF || disable altivec
2669 $inc_altivec_h
2670 int main(void) {
2671     vector signed int v1, v2, v3;
2672     v1 = vec_add(v2,v3);
2673     return 0;
2674 }
2675 EOF
2676
2677         # check if our compiler supports braces for vector declarations
2678         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2679 $inc_altivec_h
2680 int main (void) { (vector int) {1}; return 0; }
2681 EOF
2682     fi
2683
2684 elif enabled sparc; then
2685
2686     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2687         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2688
2689 elif enabled x86; then
2690
2691     enable local_aligned_8 local_aligned_16
2692
2693     # check whether EBP is available on x86
2694     # As 'i' is stored on the stack, this program will crash
2695     # if the base pointer is used to access it because the
2696     # base pointer is cleared in the inline assembly code.
2697     check_exec_crash <<EOF && enable ebp_available
2698     volatile int i=0;
2699     __asm__ volatile (
2700         "xorl %%ebp, %%ebp"
2701     ::: "%ebp");
2702     return i;
2703 EOF
2704
2705     # check whether EBX is available on x86
2706     check_asm ebx_available '""::"b"(0)' &&
2707         check_asm ebx_available '"":::"%ebx"'
2708
2709     # check whether xmm clobbers are supported
2710     check_asm xmm_clobbers '"":::"%xmm0"'
2711
2712     # check whether binutils is new enough to compile SSSE3/MMX2
2713     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2714     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2715
2716     check_asm bswap '"bswap %%eax" ::: "%eax"'
2717
2718     if ! disabled_any asm mmx yasm; then
2719         if check_cmd $yasmexe --version; then
2720             enabled x86_64 && yasm_extra="-m amd64"
2721             yasm_debug="-g dwarf2"
2722         elif check_cmd nasm -v; then
2723             yasmexe=nasm
2724             yasm_debug="-g -F dwarf"
2725             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2726         fi
2727
2728         YASMFLAGS="-f $objformat $yasm_extra"
2729         enabled pic               && append YASMFLAGS "-DPIC"
2730         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2731         case "$objformat" in
2732             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2733         esac
2734
2735         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2736             die "yasm not found, use --disable-yasm for a crippled build"
2737         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2738     fi
2739
2740     case "$cpu" in
2741         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2742             disable fast_clz
2743         ;;
2744     esac
2745
2746 fi
2747
2748 if enabled asm; then
2749     as=${gas:=$as}
2750     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2751         $nogas "GNU assembler not found, install gas-preprocessor"
2752 fi
2753
2754 check_ldflags -Wl,--as-needed
2755
2756 if check_func dlopen; then
2757     ldl=
2758 elif check_func dlopen -ldl; then
2759     ldl=-ldl
2760 fi
2761
2762 if enabled network; then
2763     check_type "sys/types.h sys/socket.h" socklen_t
2764     check_type netdb.h "struct addrinfo"
2765     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2766     check_type netinet/in.h "struct sockaddr_in6"
2767     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2768     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2769     # Prefer arpa/inet.h over winsock2
2770     if check_header arpa/inet.h ; then
2771         check_func closesocket
2772     elif check_header winsock2.h ; then
2773         check_func_headers winsock2.h closesocket -lws2 && \
2774             network_extralibs="-lws2" || \
2775         { check_func_headers winsock2.h closesocket -lws2_32 && \
2776             network_extralibs="-lws2_32"; }
2777         check_type ws2tcpip.h socklen_t
2778         check_type ws2tcpip.h "struct addrinfo"
2779         check_type ws2tcpip.h "struct ipv6_mreq"
2780         check_type ws2tcpip.h "struct sockaddr_in6"
2781         check_type ws2tcpip.h "struct sockaddr_storage"
2782         check_struct winsock2.h "struct sockaddr" sa_len
2783     else
2784         disable network
2785     fi
2786 fi
2787
2788 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2789 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2790
2791 check_func  fcntl
2792 check_func  fork
2793 check_func  getaddrinfo $network_extralibs
2794 check_func  gethrtime
2795 check_func  getrusage
2796 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2797 check_func  inet_aton $network_extralibs
2798 check_func  isatty
2799 check_func  localtime_r
2800 check_func  ${malloc_prefix}memalign            && enable memalign
2801 check_func  mkstemp
2802 check_func  mmap
2803 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2804 check_func  setrlimit
2805 check_func  strerror_r
2806 check_func  strptime
2807 check_func  strtok_r
2808 check_func_headers io.h setmode
2809 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2810 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2811 check_func_headers windows.h GetProcessTimes
2812 check_func_headers windows.h MapViewOfFile
2813 check_func_headers windows.h VirtualAlloc
2814
2815 check_header dlfcn.h
2816 check_header dxva2api.h
2817 check_header malloc.h
2818 check_header poll.h
2819 check_header sys/mman.h
2820 check_header sys/resource.h
2821 check_header sys/select.h
2822 check_header vdpau/vdpau.h
2823 check_header vdpau/vdpau_x11.h
2824 check_header X11/extensions/XvMClib.h
2825
2826 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2827
2828 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2829 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2830
2831 # check for some common methods of building with pthread support
2832 # do this before the optional library checks as some of them require pthreads
2833 if ! disabled pthreads && ! enabled w32threads; then
2834     enable pthreads
2835     if check_func pthread_create; then
2836         :
2837     elif check_func pthread_create -pthread; then
2838         add_cflags -pthread
2839         add_extralibs -pthread
2840     elif check_func pthread_create -pthreads; then
2841         add_cflags -pthreads
2842         add_extralibs -pthreads
2843     elif check_func pthread_create -lpthreadGC2; then
2844         add_extralibs -lpthreadGC2
2845     elif ! check_lib pthread.h pthread_create -lpthread; then
2846         disable pthreads
2847     fi
2848 fi
2849
2850 for thread in $THREADS_LIST; do
2851     if enabled $thread; then
2852         test -n "$thread_type" &&
2853             die "ERROR: Only one thread type must be selected." ||
2854             thread_type="$thread"
2855     fi
2856 done
2857
2858 check_lib math.h sin -lm && LIBM="-lm"
2859 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2860
2861 check_mathfunc exp2
2862 check_mathfunc exp2f
2863 check_mathfunc llrint
2864 check_mathfunc llrintf
2865 check_mathfunc log2
2866 check_mathfunc log2f
2867 check_mathfunc lrint
2868 check_mathfunc lrintf
2869 check_mathfunc round
2870 check_mathfunc roundf
2871 check_mathfunc trunc
2872 check_mathfunc truncf
2873
2874 # these are off by default, so fail if requested and not available
2875 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2876 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2877 enabled libdirac   && require_pkg_config dirac                          \
2878     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2879     "dirac_decoder_init dirac_encoder_init"
2880 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2881 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2882 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2883 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2884 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2885 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2886 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2887 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2888 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2889 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2890 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2891 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2892 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2893 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2894 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2895 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2896 enabled libvpx     && {
2897     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2898                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2899     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2900                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2901 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2902                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2903                         die "ERROR: libx264 version must be >= 0.115."; }
2904 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2905 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2906 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2907
2908 # libdc1394 check
2909 if enabled libdc1394; then
2910     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2911         enable libdc1394_2; } ||
2912     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2913         enable libdc1394_1; } ||
2914     die "ERROR: No version of libdc1394 found "
2915 fi
2916
2917 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2918     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2919     enable sdl &&
2920     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2921 fi
2922
2923 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2924
2925 check_header linux/fb.h
2926 check_header linux/videodev.h
2927 check_header linux/videodev2.h
2928 check_header sys/videoio.h
2929
2930 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2931 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2932 # w32api 3.12 had it defined wrong
2933 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2934
2935 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2936 { check_header dev/bktr/ioctl_meteor.h &&
2937   check_header dev/bktr/ioctl_bt848.h; } ||
2938 { check_header machine/ioctl_meteor.h &&
2939   check_header machine/ioctl_bt848.h; } ||
2940 { check_header dev/video/meteor/ioctl_meteor.h &&
2941   check_header dev/video/bktr/ioctl_bt848.h; } ||
2942 check_header dev/ic/bt8xx.h
2943
2944 check_header sndio.h
2945 check_header sys/soundcard.h
2946 check_header soundcard.h
2947
2948 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2949
2950 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2951
2952 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2953
2954 enabled libcdio &&
2955     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2956
2957 enabled x11grab                         &&
2958 check_header X11/Xlib.h                 &&
2959 check_header X11/extensions/XShm.h      &&
2960 check_header X11/extensions/Xfixes.h    &&
2961 check_func XOpenDisplay -lX11           &&
2962 check_func XShmCreateImage -lX11 -lXext &&
2963 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2964
2965 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2966 check_cpp_condition \
2967     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2968     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2969       disable vdpau; }
2970 fi
2971
2972 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2973
2974 # add some useful compiler flags if supported
2975 check_cflags -Wdeclaration-after-statement
2976 check_cflags -Wall
2977 check_cflags -Wno-parentheses
2978 check_cflags -Wno-switch
2979 check_cflags -Wno-format-zero-length
2980 check_cflags -Wdisabled-optimization
2981 check_cflags -Wpointer-arith
2982 check_cflags -Wredundant-decls
2983 check_cflags -Wno-pointer-sign
2984 check_cflags -Wcast-qual
2985 check_cflags -Wwrite-strings
2986 check_cflags -Wtype-limits
2987 check_cflags -Wundef
2988 check_cflags -Wmissing-prototypes
2989 enabled extra_warnings && check_cflags -Winline
2990
2991 # add some linker flags
2992 check_ldflags -Wl,--warn-common
2993 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
2994 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2995
2996 echo "X{};" > $TMPV
2997 if test_ldflags -Wl,--version-script,$TMPV; then
2998     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2999     check_cc <<EOF && enable symver_asm_label
3000 void ff_foo(void) __asm__ ("av_foo@VERSION");
3001 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3002 EOF
3003     check_cc <<EOF && enable symver_gnu_asm
3004 __asm__(".symver ff_foo,av_foo@VERSION");
3005 void ff_foo(void) {}
3006 EOF
3007 fi
3008
3009 if [ -n "$optflags" ]; then
3010     add_cflags $optflags
3011 elif enabled small; then
3012     add_cflags $size_cflags
3013 elif enabled optimizations; then
3014     add_cflags $speed_cflags
3015 else
3016     add_cflags $noopt_cflags
3017 fi
3018 check_cflags -fno-math-errno
3019 check_cflags -fno-signed-zeros
3020
3021 if enabled icc; then
3022     # Just warnings, no remarks
3023     check_cflags -w1
3024     # -wd: Disable following warnings
3025     # 144, 167, 556: -Wno-pointer-sign
3026     # 1292: attribute "foo" ignored
3027     # 10006: ignoring unknown option -fno-signed-zeros
3028     # 10148: ignoring unknown option -Wno-parentheses
3029     # 10156: ignoring option '-W'; no argument required
3030     check_cflags -wd144,167,556,1292,10006,10148,10156
3031     # 11030: Warning unknown option --as-needed
3032     # 10156: ignoring option '-export'; no argument required
3033     check_ldflags -wd10156,11030
3034     # Allow to compile with optimizations
3035     check_ldflags -march=$cpu
3036     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3037     enable ebp_available
3038     if enabled x86_32; then
3039         test ${icc_version%%.*} -ge 11 && \
3040             check_cflags -falign-stack=maintain-16-byte || \
3041             disable aligned_stack
3042     fi
3043 elif enabled ccc; then
3044     # disable some annoying warnings
3045     add_cflags -msg_disable cvtu32to64
3046     add_cflags -msg_disable embedcomment
3047     add_cflags -msg_disable needconstext
3048     add_cflags -msg_disable nomainieee
3049     add_cflags -msg_disable ptrmismatch1
3050     add_cflags -msg_disable unreachcode
3051 elif enabled gcc; then
3052     check_cflags -fno-tree-vectorize
3053     check_cflags -Werror=implicit-function-declaration
3054     check_cflags -Werror=missing-prototypes
3055 elif enabled llvm_gcc; then
3056     check_cflags -mllvm -stack-alignment=16
3057 elif enabled clang; then
3058     check_cflags -mllvm -stack-alignment=16
3059     check_cflags -Qunused-arguments
3060 elif enabled armcc; then
3061     # 2523: use of inline assembler is deprecated
3062     add_cflags -W${armcc_opt},--diag_suppress=2523
3063     add_cflags -W${armcc_opt},--diag_suppress=1207
3064     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3065     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3066     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3067     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3068 elif enabled tms470; then
3069     add_cflags -pds=824 -pds=837
3070 elif enabled pathscale; then
3071     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3072 fi
3073
3074 enabled_any $THREADS_LIST      && enable threads
3075
3076 check_deps $CONFIG_LIST       \
3077            $CONFIG_EXTRA      \
3078            $HAVE_LIST         \
3079            $DECODER_LIST      \
3080            $ENCODER_LIST      \
3081            $HWACCEL_LIST      \
3082            $PARSER_LIST       \
3083            $BSF_LIST          \
3084            $DEMUXER_LIST      \
3085            $MUXER_LIST        \
3086            $FILTER_LIST       \
3087            $INDEV_LIST        \
3088            $OUTDEV_LIST       \
3089            $PROTOCOL_LIST     \
3090            $ACODEC_TESTS      \
3091            $VCODEC_TESTS      \
3092            $LAVF_TESTS        \
3093            $LAVFI_TESTS       \
3094            $SEEK_TESTS        \
3095
3096 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3097
3098 ! enabled_any memalign posix_memalign malloc_aligned &&
3099     enabled_any $need_memalign && enable memalign_hack
3100
3101 echo "install prefix            $prefix"
3102 echo "source path               $source_path"
3103 echo "C compiler                $cc"
3104 echo "ARCH                      $arch ($cpu)"
3105 if test "$build_suffix" != ""; then
3106     echo "build suffix              $build_suffix"
3107 fi
3108 if test "$extra_version" != ""; then
3109     echo "version string suffix     $extra_version"
3110 fi
3111 echo "big-endian                ${bigendian-no}"
3112 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3113 if enabled x86; then
3114     echo "${yasmexe}                      ${yasm-no}"
3115     echo "MMX enabled               ${mmx-no}"
3116     echo "MMX2 enabled              ${mmx2-no}"
3117     echo "3DNow! enabled            ${amd3dnow-no}"
3118     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3119     echo "SSE enabled               ${sse-no}"
3120     echo "SSSE3 enabled             ${ssse3-no}"
3121     echo "AVX enabled               ${avx-no}"
3122     echo "CMOV enabled              ${cmov-no}"
3123     echo "CMOV is fast              ${fast_cmov-no}"
3124     echo "EBX available             ${ebx_available-no}"
3125     echo "EBP available             ${ebp_available-no}"
3126 fi
3127 if enabled arm; then
3128     echo "ARMv5TE enabled           ${armv5te-no}"
3129     echo "ARMv6 enabled             ${armv6-no}"
3130     echo "ARMv6T2 enabled           ${armv6t2-no}"
3131     echo "ARM VFP enabled           ${armvfp-no}"
3132     echo "IWMMXT enabled            ${iwmmxt-no}"
3133     echo "NEON enabled              ${neon-no}"
3134 fi
3135 if enabled mips; then
3136     echo "MMI enabled               ${mmi-no}"
3137 fi
3138 if enabled ppc; then
3139     echo "AltiVec enabled           ${altivec-no}"
3140     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3141     echo "dcbzl available           ${dcbzl-no}"
3142 fi
3143 if enabled sparc; then
3144     echo "VIS enabled               ${vis-no}"
3145 fi
3146 echo "debug symbols             ${debug-no}"
3147 echo "optimize for size         ${small-no}"
3148 echo "optimizations             ${optimizations-no}"
3149 echo "static                    ${static-no}"
3150 echo "shared                    ${shared-no}"
3151 echo "postprocessing support    ${postproc-no}"
3152 echo "new filter support        ${avfilter-no}"
3153 echo "network support           ${network-no}"
3154 echo "threading support         ${thread_type-no}"
3155 echo "SDL support               ${sdl-no}"
3156 echo "Sun medialib support      ${mlib-no}"
3157 echo "libdxva2 enabled          ${dxva2-no}"
3158 echo "libva enabled             ${vaapi-no}"
3159 echo "libvdpau enabled          ${vdpau-no}"
3160 echo "AVISynth enabled          ${avisynth-no}"
3161 echo "frei0r enabled            ${frei0r-no}"
3162 echo "libcdio support           ${libcdio-no}"
3163 echo "libdc1394 support         ${libdc1394-no}"
3164 echo "libdirac enabled          ${libdirac-no}"
3165 echo "libfaac enabled           ${libfaac-no}"
3166 echo "libgsm enabled            ${libgsm-no}"
3167 echo "libmp3lame enabled        ${libmp3lame-no}"
3168 echo "libnut enabled            ${libnut-no}"
3169 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3170 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3171 echo "libopencv support         ${libopencv-no}"
3172 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3173 echo "librtmp enabled           ${librtmp-no}"
3174 echo "libschroedinger enabled   ${libschroedinger-no}"
3175 echo "libspeex enabled          ${libspeex-no}"
3176 echo "libtheora enabled         ${libtheora-no}"
3177 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3178 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3179 echo "libvorbis enabled         ${libvorbis-no}"
3180 echo "libvpx enabled            ${libvpx-no}"
3181 echo "libx264 enabled           ${libx264-no}"
3182 echo "libxavs enabled           ${libxavs-no}"
3183 echo "libxvid enabled           ${libxvid-no}"
3184 echo "zlib enabled              ${zlib-no}"
3185 echo "bzlib enabled             ${bzlib-no}"
3186 echo
3187
3188 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3189     echo "Enabled ${type}s:"
3190     eval list=\$$(toupper $type)_LIST
3191     print_enabled '_*' $list | sort | pr -r -3 -t
3192     echo
3193 done
3194
3195 license="LGPL version 2.1 or later"
3196 if enabled nonfree; then
3197     license="nonfree and unredistributable"
3198 elif enabled gplv3; then
3199     license="GPL version 3 or later"
3200 elif enabled lgplv3; then
3201     license="LGPL version 3 or later"
3202 elif enabled gpl; then
3203     license="GPL version 2 or later"
3204 fi
3205
3206 echo "License: $license"
3207
3208 echo "Creating config.mak and config.h..."
3209
3210 test -e Makefile || $ln_s "$source_path/Makefile" .
3211
3212 config_files="$TMPH config.mak"
3213
3214 cat > config.mak <<EOF
3215 # Automatically generated by configure - do not modify!
3216 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3217 prefix=$prefix
3218 LIBDIR=\$(DESTDIR)$libdir
3219 SHLIBDIR=\$(DESTDIR)$shlibdir
3220 INCDIR=\$(DESTDIR)$incdir
3221 BINDIR=\$(DESTDIR)$bindir
3222 DATADIR=\$(DESTDIR)$datadir
3223 MANDIR=\$(DESTDIR)$mandir
3224 SRC_PATH=$source_path
3225 CC_IDENT=$cc_ident
3226 ARCH=$arch
3227 CC=$cc
3228 AS=$as
3229 LD=$ld
3230 DEPCC=$dep_cc
3231 YASM=$yasmexe
3232 YASMDEP=$yasmexe
3233 AR=$ar
3234 RANLIB=$ranlib
3235 LN_S=$ln_s
3236 CPPFLAGS=$CPPFLAGS
3237 CFLAGS=$CFLAGS
3238 ASFLAGS=$ASFLAGS
3239 AS_O=$CC_O
3240 CC_O=$CC_O
3241 DLLTOOL=$dlltool
3242 LDFLAGS=$LDFLAGS
3243 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3244 SHFLAGS=$SHFLAGS
3245 YASMFLAGS=$YASMFLAGS
3246 BUILDSUF=$build_suffix
3247 FULLNAME=$FULLNAME
3248 LIBPREF=$LIBPREF
3249 LIBSUF=$LIBSUF
3250 LIBNAME=$LIBNAME
3251 SLIBPREF=$SLIBPREF
3252 SLIBSUF=$SLIBSUF
3253 EXESUF=$EXESUF
3254 EXTRA_VERSION=$extra_version
3255 DEPFLAGS=$DEPFLAGS
3256 CCDEP=$CCDEP
3257 ASDEP=$ASDEP
3258 CC_DEPFLAGS=$CC_DEPFLAGS
3259 AS_DEPFLAGS=$AS_DEPFLAGS
3260 HOSTCC=$host_cc
3261 HOSTCFLAGS=$host_cflags
3262 HOSTEXESUF=$HOSTEXESUF
3263 HOSTLDFLAGS=$host_ldflags
3264 HOSTLIBS=$host_libs
3265 TARGET_EXEC=$target_exec
3266 TARGET_PATH=$target_path
3267 SDL_LIBS=$sdl_libs
3268 SDL_CFLAGS=$sdl_cflags
3269 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3270 EXTRALIBS=$extralibs
3271 INSTALL=install
3272 LIBTARGET=${LIBTARGET}
3273 SLIBNAME=${SLIBNAME}
3274 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3275 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3276 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3277 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3278 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3279 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3280 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3281 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3282 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3283 EOF
3284
3285 get_version(){
3286     name=$1
3287     file=$source_path/$2
3288     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3289     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3290     lcname=$(tolower $name)
3291     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3292     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3293 }
3294
3295 get_version LIBSWSCALE  libswscale/swscale.h
3296 get_version LIBPOSTPROC libpostproc/postprocess.h
3297 get_version LIBAVCODEC  libavcodec/version.h
3298 get_version LIBAVDEVICE libavdevice/avdevice.h
3299 get_version LIBAVFORMAT libavformat/version.h
3300 get_version LIBAVUTIL   libavutil/avutil.h
3301 get_version LIBAVFILTER libavfilter/avfilter.h
3302
3303 cat > $TMPH <<EOF
3304 /* Automatically generated by configure - do not modify! */
3305 #ifndef LIBAV_CONFIG_H
3306 #define LIBAV_CONFIG_H
3307 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3308 #define LIBAV_LICENSE "$(c_escape $license)"
3309 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3310 #define CC_TYPE "$cc_type"
3311 #define CC_VERSION $cc_version
3312 #define restrict $_restrict
3313 #define EXTERN_PREFIX "${extern_prefix}"
3314 #define EXTERN_ASM ${extern_prefix}
3315 #define SLIBSUF "$SLIBSUF"
3316 EOF
3317
3318 test -n "$malloc_prefix" &&
3319     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3320
3321 if enabled small || disabled optimizations; then
3322     echo "#undef  av_always_inline"  >> $TMPH
3323     if enabled small; then
3324         echo "#define av_always_inline inline"  >> $TMPH
3325     else
3326         echo "#define av_always_inline av_unused"  >> $TMPH
3327     fi
3328 fi
3329
3330 if enabled yasm; then
3331     append config_files $TMPASM
3332     printf '' >$TMPASM
3333 fi
3334
3335 print_config ARCH_   "$config_files" $ARCH_LIST
3336 print_config HAVE_   "$config_files" $HAVE_LIST
3337 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3338                                      $CONFIG_EXTRA      \
3339                                      $DECODER_LIST      \
3340                                      $ENCODER_LIST      \
3341                                      $HWACCEL_LIST      \
3342                                      $PARSER_LIST       \
3343                                      $BSF_LIST          \
3344                                      $DEMUXER_LIST      \
3345                                      $MUXER_LIST        \
3346                                      $FILTER_LIST       \
3347                                      $PROTOCOL_LIST     \
3348                                      $INDEV_LIST        \
3349                                      $OUTDEV_LIST       \
3350
3351 cat >>config.mak <<EOF
3352 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3353 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3354 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3355 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3356 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3357 EOF
3358
3359 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3360
3361 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3362 cp_if_changed $TMPH config.h
3363 touch .config
3364
3365 enabled yasm && cp_if_changed $TMPASM config.asm
3366
3367 cat > $TMPH <<EOF
3368 /* Generated by ffconf */
3369 #ifndef AVUTIL_AVCONFIG_H
3370 #define AVUTIL_AVCONFIG_H
3371 EOF
3372
3373 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3374
3375 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3376
3377 cp_if_changed $TMPH libavutil/avconfig.h
3378
3379 test -n "$WARNINGS" && printf "\n$WARNINGS"
3380
3381 # build pkg-config files
3382
3383 pkgconfig_generate(){
3384 name=$1
3385 shortname=${name#lib}${build_suffix}
3386 comment=$2
3387 version=$3
3388 libs=$4
3389 requires=$5
3390 enabled ${name#lib} || return 0
3391 mkdir -p $name
3392 cat <<EOF > $name/$name.pc
3393 prefix=$prefix
3394 exec_prefix=\${prefix}
3395 libdir=$libdir
3396 includedir=$incdir
3397
3398 Name: $name
3399 Description: $comment
3400 Version: $version
3401 Requires: $(enabled shared || echo $requires)
3402 Requires.private: $(enabled shared && echo $requires)
3403 Conflicts:
3404 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3405 Libs.private: $(enabled shared && echo $libs)
3406 Cflags: -I\${includedir}
3407 EOF
3408 cat <<EOF > $name/$name-uninstalled.pc
3409 prefix=
3410 exec_prefix=
3411 libdir=\${pcfiledir}
3412 includedir=${source_path}
3413
3414 Name: $name
3415 Description: $comment
3416 Version: $version
3417 Requires: $requires
3418 Conflicts:
3419 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3420 Cflags: -I\${includedir}
3421 EOF
3422 }
3423
3424 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3425 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3426 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3427 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3428 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3429 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3430 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"