configure: Enable libpostproc automatically if GPL code is enabled.
[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/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-postproc       disable libpostproc build
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --disable-vaapi          disable VAAPI code
110   --disable-vdpau          disable VDPAU code
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
115   --disable-everything     disable all components listed below
116   --disable-encoder=NAME   disable encoder NAME
117   --enable-encoder=NAME    enable encoder NAME
118   --disable-encoders       disable all encoders
119   --disable-decoder=NAME   disable decoder NAME
120   --enable-decoder=NAME    enable decoder NAME
121   --disable-decoders       disable all decoders
122   --disable-hwaccel=NAME   disable hwaccel NAME
123   --enable-hwaccel=NAME    enable hwaccel NAME
124   --disable-hwaccels       disable all hwaccels
125   --disable-muxer=NAME     disable muxer NAME
126   --enable-muxer=NAME      enable muxer NAME
127   --disable-muxers         disable all muxers
128   --disable-demuxer=NAME   disable demuxer NAME
129   --enable-demuxer=NAME    enable demuxer NAME
130   --disable-demuxers       disable all demuxers
131   --enable-parser=NAME     enable parser NAME
132   --disable-parser=NAME    disable parser NAME
133   --disable-parsers        disable all parsers
134   --enable-bsf=NAME        enable bitstream filter NAME
135   --disable-bsf=NAME       disable bitstream filter NAME
136   --disable-bsfs           disable all bitstream filters
137   --enable-protocol=NAME   enable protocol NAME
138   --disable-protocol=NAME  disable protocol NAME
139   --disable-protocols      disable all protocols
140   --disable-indev=NAME     disable input device NAME
141   --disable-outdev=NAME    disable output device NAME
142   --disable-indevs         disable input devices
143   --disable-outdevs        disable output devices
144   --disable-devices        disable all devices
145   --enable-filter=NAME     enable filter NAME
146   --disable-filter=NAME    disable filter NAME
147   --disable-filters        disable all filters
148   --list-decoders          show all available decoders
149   --list-encoders          show all available encoders
150   --list-hwaccels          show all available hardware accelerators
151   --list-muxers            show all available muxers
152   --list-demuxers          show all available demuxers
153   --list-parsers           show all available parsers
154   --list-protocols         show all available protocols
155   --list-bsfs              show all available bitstream filters
156   --list-indevs            show all available input devices
157   --list-outdevs           show all available output devices
158   --list-filters           show all available filters
159
160 External library support:
161   --enable-avisynth        enable reading of AVISynth script files [no]
162   --enable-bzlib           enable bzlib [autodetect]
163   --enable-frei0r          enable frei0r video filtering
164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
166   --enable-libopencv       enable video filtering via libopencv [no]
167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
168                            and libraw1394 [no]
169   --enable-libdirac        enable Dirac support via libdirac [no]
170   --enable-libfaac         enable FAAC support via libfaac [no]
171   --enable-libfreetype     enable libfreetype [no]
172   --enable-libgsm          enable GSM support via libgsm [no]
173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
174   --enable-libnut          enable NUT (de)muxing via libnut,
175                            native (de)muxer exists [no]
176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
179   --enable-libspeex        enable Speex decoding via libspeex [no]
180   --enable-libtheora       enable Theora encoding via libtheora [no]
181   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
184                            native implementation exists [no]
185   --enable-libvpx          enable VP8 support via libvpx [no]
186   --enable-libx264         enable H.264 encoding via x264 [no]
187   --enable-libxavs         enable AVS encoding via xavs [no]
188   --enable-libxvid         enable Xvid encoding via xvidcore,
189                            native MPEG-4/Xvid encoder exists [no]
190   --enable-mlib            enable Sun medialib [no]
191   --enable-zlib            enable zlib [autodetect]
192
193 Advanced options (experts only):
194   --source-path=PATH       path to source code [$source_path]
195   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
196   --enable-cross-compile   assume a cross-compiler is used
197   --sysroot=PATH           root of cross-build tree
198   --sysinclude=PATH        location of cross-build system headers
199   --target-os=OS           compiler targets OS [$target_os]
200   --target-exec=CMD        command to run executables on target
201   --target-path=DIR        path to view of build directory on target
202   --nm=NM                  use nm tool
203   --ar=AR                  use archive tool AR [$ar_default]
204   --as=AS                  use assembler AS [$as_default]
205   --cc=CC                  use C compiler CC [$cc_default]
206   --ld=LD                  use linker LD
207   --host-cc=HOSTCC         use host C compiler HOSTCC
208   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
209   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
210   --host-libs=HLIBS        use libs HLIBS when linking for host
211   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
212   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
213   --extra-libs=ELIBS       add ELIBS [$ELIBS]
214   --extra-version=STRING   version string suffix []
215   --build-suffix=SUFFIX    library name suffix []
216   --arch=ARCH              select architecture [$arch]
217   --cpu=CPU                select the minimum required CPU (affects
218                            instruction selection, may crash on older CPUs)
219   --disable-asm            disable all assembler optimizations
220   --disable-altivec        disable AltiVec optimizations
221   --disable-amd3dnow       disable 3DNow! optimizations
222   --disable-amd3dnowext    disable 3DNow! extended optimizations
223   --disable-mmx            disable MMX optimizations
224   --disable-mmx2           disable MMX2 optimizations
225   --disable-sse            disable SSE optimizations
226   --disable-ssse3          disable SSSE3 optimizations
227   --disable-avx            disable AVX optimizations
228   --disable-armv5te        disable armv5te optimizations
229   --disable-armv6          disable armv6 optimizations
230   --disable-armv6t2        disable armv6t2 optimizations
231   --disable-armvfp         disable ARM VFP optimizations
232   --disable-iwmmxt         disable iwmmxt optimizations
233   --disable-mmi            disable MMI optimizations
234   --disable-neon           disable neon optimizations
235   --disable-vis            disable VIS optimizations
236   --disable-yasm           disable use of yasm assembler
237   --enable-pic             build position-independent code
238   --malloc-prefix=PFX      prefix malloc and related names with PFX
239   --enable-sram            allow use of on-chip SRAM
240   --disable-symver         disable symbol versioning
241
242 Developer options (useful when working on Libav itself):
243   --disable-debug          disable debugging symbols
244   --enable-debug=LEVEL     set the debug level [$debuglevel]
245   --disable-optimizations  disable compiler optimizations
246   --enable-extra-warnings  enable more compiler warnings
247   --samples=PATH           location of test samples for FATE, if not set use
248                            \$FATE_SAMPLES at make invocation time.
249
250 NOTE: Object files are built at the place where configure is launched.
251 EOF
252   exit 0
253 }
254
255 quotes='""'
256
257 log(){
258     echo "$@" >> $logfile
259 }
260
261 log_file(){
262     log BEGIN $1
263     pr -n -t $1 >> $logfile
264     log END $1
265 }
266
267 echolog(){
268     log "$@"
269     echo "$@"
270 }
271
272 warn(){
273     log "WARNING: $*"
274     WARNINGS="${WARNINGS}WARNING: $*\n"
275 }
276
277 die(){
278     echolog "$@"
279     cat <<EOF
280
281 If you think configure made a mistake, make sure you are using the latest
282 version from Git.  If the latest version fails, report the problem to the
283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
284 EOF
285     if disabled logging; then
286         cat <<EOF
287 Rerun configure with logging enabled (do not use --disable-logging), and
288 include the log this produces with your report.
289 EOF
290     else
291 cat <<EOF
292 Include the log file "$logfile" produced by configure as this will help
293 solving the problem.
294 EOF
295     fi
296     exit 1
297 }
298
299 # Avoid locale weirdness, besides we really just want to translate ASCII.
300 toupper(){
301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
302 }
303
304 tolower(){
305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
306 }
307
308 c_escape(){
309     echo "$*" | sed 's/["\\]/\\\0/g'
310 }
311
312 sh_quote(){
313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
315     echo "$v"
316 }
317
318 cleanws(){
319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
320 }
321
322 filter(){
323     pat=$1
324     shift
325     for v; do
326         eval "case $v in $pat) echo $v ;; esac"
327     done
328 }
329
330 filter_out(){
331     pat=$1
332     shift
333     for v; do
334         eval "case $v in $pat) ;; *) echo $v ;; esac"
335     done
336 }
337
338 map(){
339     m=$1
340     shift
341     for v; do eval $m; done
342 }
343
344 set_all(){
345     value=$1
346     shift
347     for var in $*; do
348         eval $var=$value
349     done
350 }
351
352 set_weak(){
353     value=$1
354     shift
355     for var; do
356         eval : \${$var:=$value}
357     done
358 }
359
360 set_safe(){
361     var=$1
362     shift
363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
364 }
365
366 get_safe(){
367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
368 }
369
370 pushvar(){
371     for var in $*; do
372         eval level=\${${var}_level:=0}
373         eval ${var}_${level}="\$$var"
374         eval ${var}_level=$(($level+1))
375     done
376 }
377
378 popvar(){
379     for var in $*; do
380         eval level=\${${var}_level:-0}
381         test $level = 0 && continue
382         eval level=$(($level-1))
383         eval $var="\${${var}_${level}}"
384         eval ${var}_level=$level
385         eval unset ${var}_${level}
386     done
387 }
388
389 enable(){
390     set_all yes $*
391 }
392
393 disable(){
394     set_all no $*
395 }
396
397 enable_weak(){
398     set_weak yes $*
399 }
400
401 disable_weak(){
402     set_weak no $*
403 }
404
405 enable_safe(){
406     for var; do
407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
408     done
409 }
410
411 disable_safe(){
412     for var; do
413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
414     done
415 }
416
417 do_enable_deep(){
418     for var; do
419         enabled $var && continue
420         eval sel="\$${var}_select"
421         eval sgs="\$${var}_suggest"
422         pushvar var sgs
423         enable_deep $sel
424         popvar sgs
425         enable_deep_weak $sgs
426         popvar var
427     done
428 }
429
430 enable_deep(){
431     do_enable_deep $*
432     enable $*
433 }
434
435 enable_deep_weak(){
436     do_enable_deep $*
437     enable_weak $*
438 }
439
440 enabled(){
441     test "${1#!}" = "$1" && op== || op=!=
442     eval test "x\$${1#!}" $op "xyes"
443 }
444
445 disabled(){
446     test "${1#!}" = "$1" && op== || op=!=
447     eval test "x\$${1#!}" $op "xno"
448 }
449
450 enabled_all(){
451     for opt; do
452         enabled $opt || return 1
453     done
454 }
455
456 disabled_all(){
457     for opt; do
458         disabled $opt || return 1
459     done
460 }
461
462 enabled_any(){
463     for opt; do
464         enabled $opt && return 0
465     done
466 }
467
468 disabled_any(){
469     for opt; do
470         disabled $opt && return 0
471     done
472     return 1
473 }
474
475 set_default(){
476     for opt; do
477         eval : \${$opt:=\$${opt}_default}
478     done
479 }
480
481 is_in(){
482     value=$1
483     shift
484     for var in $*; do
485         [ $var = $value ] && return 0
486     done
487     return 1
488 }
489
490 check_deps(){
491     for cfg; do
492         cfg="${cfg#!}"
493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
494         disabled ${cfg}_checking && continue
495         enable ${cfg}_checking
496
497         eval dep_all="\$${cfg}_deps"
498         eval dep_any="\$${cfg}_deps_any"
499         eval dep_sel="\$${cfg}_select"
500         eval dep_sgs="\$${cfg}_suggest"
501         eval dep_ifa="\$${cfg}_if"
502         eval dep_ifn="\$${cfg}_if_any"
503
504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
507
508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
510         enabled_all  $dep_all || disable $cfg
511         enabled_any  $dep_any || disable $cfg
512         disabled_any $dep_sel && disable $cfg
513
514         if enabled $cfg; then
515             eval dep_extralibs="\$${cfg}_extralibs"
516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
517             enable_deep $dep_sel
518             enable_deep_weak $dep_sgs
519         fi
520
521         disable ${cfg}_checking
522     done
523 }
524
525 print_config_h(){
526     enabled $1 && v=1 || v=0
527     echo "#define $2 $v"
528 }
529
530 print_config_mak(){
531     enabled $1 && v= || v=!
532     echo "$v$2=yes"
533 }
534
535 print_config_asm(){
536     enabled $1 && echo "%define $2"
537 }
538
539 print_config(){
540     pfx=$1
541     files=$2
542     shift 2
543     for cfg; do
544         ucname="$(toupper $cfg)"
545         for f in $files; do
546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
547         done
548     done
549 }
550
551 print_enabled(){
552     test "$1" = -n && end=" " && shift || end="\n"
553     suf=$1
554     shift
555     for v; do
556         enabled $v && printf "%s$end" ${v%$suf};
557     done
558 }
559
560 append(){
561     var=$1
562     shift
563     eval "$var=\"\$$var $*\""
564 }
565
566 prepend(){
567     var=$1
568     shift
569     eval "$var=\"$* \$$var\""
570 }
571
572 add_cppflags(){
573     append CPPFLAGS $($filter_cppflags "$@")
574 }
575
576 add_cflags(){
577     append CFLAGS $($filter_cflags "$@")
578 }
579
580 add_asflags(){
581     append ASFLAGS $($filter_asflags "$@")
582 }
583
584 add_ldflags(){
585     append LDFLAGS "$@"
586 }
587
588 add_extralibs(){
589     prepend extralibs "$@"
590 }
591
592 check_cmd(){
593     log "$@"
594     "$@" >> $logfile 2>&1
595 }
596
597 check_cc(){
598     log check_cc "$@"
599     cat > $TMPC
600     log_file $TMPC
601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
602 }
603
604 check_cpp(){
605     log check_cpp "$@"
606     cat > $TMPC
607     log_file $TMPC
608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
609 }
610
611 check_as(){
612     log check_as "$@"
613     cat > $TMPC
614     log_file $TMPC
615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
616 }
617
618 check_asm(){
619     log check_asm "$@"
620     name="$1"
621     code="$2"
622     shift 2
623     disable $name
624     check_as "$@" <<EOF && enable $name
625 void foo(void){ __asm__ volatile($code); }
626 EOF
627 }
628
629 check_yasm(){
630     log check_yasm "$@"
631     echo "$1" > $TMPS
632     log_file $TMPS
633     shift 1
634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
635 }
636
637 check_ld(){
638     log check_ld "$@"
639     flags=''
640     libs=''
641     for f; do
642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
643     done
644     check_cc $($filter_cflags $flags) || return
645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
646 }
647
648 check_cppflags(){
649     log check_cppflags "$@"
650     set -- $($filter_cppflags "$@")
651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
652 int x;
653 EOF
654 }
655
656 check_cflags(){
657     log check_cflags "$@"
658     set -- $($filter_cflags "$@")
659     check_cc "$@" <<EOF && append CFLAGS "$@"
660 int x;
661 EOF
662 }
663
664 test_ldflags(){
665     log test_ldflags "$@"
666     check_ld "$@" <<EOF
667 int main(void){ return 0; }
668 EOF
669 }
670
671 check_ldflags(){
672     log check_ldflags "$@"
673     test_ldflags "$@" && add_ldflags "$@"
674 }
675
676 check_header(){
677     log check_header "$@"
678     header=$1
679     shift
680     disable_safe $header
681     check_cpp "$@" <<EOF && enable_safe $header
682 #include <$header>
683 int x;
684 EOF
685 }
686
687 check_func(){
688     log check_func "$@"
689     func=$1
690     shift
691     disable $func
692     check_ld "$@" <<EOF && enable $func
693 extern int $func();
694 int main(void){ $func(); }
695 EOF
696 }
697
698 check_mathfunc(){
699     log check_mathfunc "$@"
700     func=$1
701     shift
702     disable $func
703     check_ld "$@" <<EOF && enable $func
704 #include <math.h>
705 float foo(float f) { return $func(f); }
706 int main(void){ return 0; }
707 EOF
708 }
709
710 check_func_headers(){
711     log check_func_headers "$@"
712     headers=$1
713     funcs=$2
714     shift 2
715     {
716         for hdr in $headers; do
717             echo "#include <$hdr>"
718         done
719         for func in $funcs; do
720             echo "long check_$func(void) { return (long) $func; }"
721         done
722         echo "int main(void) { return 0; }"
723     } | check_ld "$@" && enable $funcs && enable_safe $headers
724 }
725
726 check_cpp_condition(){
727     log check_cpp_condition "$@"
728     header=$1
729     condition=$2
730     shift 2
731     check_cpp $($filter_cppflags "$@") <<EOF
732 #include <$header>
733 #if !($condition)
734 #error "unsatisfied condition: $condition"
735 #endif
736 EOF
737 }
738
739 check_lib(){
740     log check_lib "$@"
741     header="$1"
742     func="$2"
743     shift 2
744     check_header $header && check_func $func "$@" && add_extralibs "$@"
745 }
746
747 check_lib2(){
748     log check_lib2 "$@"
749     headers="$1"
750     funcs="$2"
751     shift 2
752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
753 }
754
755 check_pkg_config(){
756     log check_pkg_config "$@"
757     pkg="$1"
758     headers="$2"
759     funcs="$3"
760     shift 3
761     $pkg_config --exists $pkg || return
762     pkg_cflags=$($pkg_config --cflags $pkg)
763     pkg_libs=$($pkg_config --libs $pkg)
764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
765         set_safe ${pkg}_cflags $pkg_cflags   &&
766         set_safe ${pkg}_libs   $pkg_libs
767 }
768
769 check_exec(){
770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
771 }
772
773 check_exec_crash(){
774     code=$(cat)
775
776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
777     # are safe but may not be available everywhere.  Thus we use
778     # raise(SIGTERM) instead.  The check is run in a subshell so we
779     # can redirect the "Terminated" message from the shell.  SIGBUS
780     # is not defined by standard C so it is used conditionally.
781
782     (check_exec "$@") >> $logfile 2>&1 <<EOF
783 #include <signal.h>
784 static void sighandler(int sig){
785     raise(SIGTERM);
786 }
787 int main(void){
788     signal(SIGILL, sighandler);
789     signal(SIGFPE, sighandler);
790     signal(SIGSEGV, sighandler);
791 #ifdef SIGBUS
792     signal(SIGBUS, sighandler);
793 #endif
794     { $code }
795 }
796 EOF
797 }
798
799 check_type(){
800     log check_type "$@"
801     headers=$1
802     type=$2
803     shift 2
804     disable_safe "$type"
805     incs=""
806     for hdr in $headers; do
807         incs="$incs
808 #include <$hdr>"
809     done
810     check_cc "$@" <<EOF && enable_safe "$type"
811 $incs
812 $type v;
813 EOF
814 }
815
816 check_struct(){
817     log check_type "$@"
818     headers=$1
819     struct=$2
820     member=$3
821     shift 3
822     disable_safe "${struct}_${member}"
823     incs=""
824     for hdr in $headers; do
825         incs="$incs
826 #include <$hdr>"
827     done
828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
829 $incs
830 const void *p = &(($struct *)0)->$member;
831 EOF
832 }
833
834 require(){
835     name="$1"
836     header="$2"
837     func="$3"
838     shift 3
839     check_lib $header $func "$@" || die "ERROR: $name not found"
840 }
841
842 require2(){
843     name="$1"
844     headers="$2"
845     func="$3"
846     shift 3
847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
848 }
849
850 require_pkg_config(){
851     pkg="$1"
852     check_pkg_config "$@" || die "ERROR: $pkg not found"
853     add_cflags    $(get_safe ${pkg}_cflags)
854     add_extralibs $(get_safe ${pkg}_libs)
855 }
856
857 check_host_cc(){
858     log check_host_cc "$@"
859     cat > $TMPC
860     log_file $TMPC
861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
862 }
863
864 check_host_cflags(){
865     log check_host_cflags "$@"
866     check_host_cc "$@" <<EOF && append host_cflags "$@"
867 int x;
868 EOF
869 }
870
871 apply(){
872     file=$1
873     shift
874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
875 }
876
877 cp_if_changed(){
878     cmp -s "$1" "$2" &&
879         echo "$2 is unchanged" ||
880         cp -f "$1" "$2"
881 }
882
883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
884 # system-dependent things.
885
886 COMPONENT_LIST="
887     bsfs
888     decoders
889     demuxers
890     encoders
891     filters
892     hwaccels
893     indevs
894     muxers
895     outdevs
896     parsers
897     protocols
898 "
899
900 CONFIG_LIST="
901     $COMPONENT_LIST
902     aandct
903     ac3dsp
904     avcodec
905     avdevice
906     avfilter
907     avformat
908     avisynth
909     bzlib
910     dct
911     doc
912     dwt
913     dxva2
914     fastdiv
915     ffmpeg
916     ffplay
917     ffprobe
918     ffserver
919     fft
920     frei0r
921     golomb
922     gpl
923     gray
924     h264dsp
925     h264pred
926     hardcoded_tables
927     huffman
928     libdc1394
929     libdirac
930     libfaac
931     libfreetype
932     libgsm
933     libmp3lame
934     libnut
935     libopencore_amrnb
936     libopencore_amrwb
937     libopencv
938     libopenjpeg
939     librtmp
940     libschroedinger
941     libspeex
942     libtheora
943     libvo_aacenc
944     libvo_amrwbenc
945     libvorbis
946     libvpx
947     libx264
948     libxavs
949     libxvid
950     lpc
951     lsp
952     mdct
953     memalign_hack
954     mlib
955     network
956     nonfree
957     pic
958     postproc
959     rdft
960     rtpdec
961     runtime_cpudetect
962     shared
963     sinewin
964     small
965     sram
966     static
967     swscale
968     swscale_alpha
969     vaapi
970     vdpau
971     version3
972     x11grab
973     zlib
974 "
975
976 THREADS_LIST='
977     pthreads
978     w32threads
979 '
980
981 ARCH_LIST='
982     alpha
983     arm
984     avr32
985     avr32_ap
986     avr32_uc
987     bfin
988     ia64
989     m68k
990     mips
991     mips64
992     parisc
993     ppc
994     ppc64
995     s390
996     sh4
997     sparc
998     sparc64
999     tomi
1000     x86
1001     x86_32
1002     x86_64
1003 '
1004
1005 ARCH_EXT_LIST='
1006     altivec
1007     amd3dnow
1008     amd3dnowext
1009     armv5te
1010     armv6
1011     armv6t2
1012     armvfp
1013     avx
1014     iwmmxt
1015     mmi
1016     mmx
1017     mmx2
1018     neon
1019     ppc4xx
1020     sse
1021     ssse3
1022     vis
1023 '
1024
1025 HAVE_LIST_PUB='
1026     bigendian
1027     fast_unaligned
1028 '
1029
1030 HAVE_LIST="
1031     $ARCH_EXT_LIST
1032     $HAVE_LIST_PUB
1033     $THREADS_LIST
1034     aligned_stack
1035     alsa_asoundlib_h
1036     altivec_h
1037     arpa_inet_h
1038     attribute_may_alias
1039     attribute_packed
1040     bswap
1041     closesocket
1042     cmov
1043     dcbzl
1044     dev_bktr_ioctl_bt848_h
1045     dev_bktr_ioctl_meteor_h
1046     dev_ic_bt8xx_h
1047     dev_video_meteor_ioctl_meteor_h
1048     dev_video_bktr_ioctl_bt848_h
1049     dlfcn_h
1050     dlopen
1051     dos_paths
1052     ebp_available
1053     ebx_available
1054     exp2
1055     exp2f
1056     fast_64bit
1057     fast_clz
1058     fast_cmov
1059     fcntl
1060     fork
1061     getaddrinfo
1062     gethrtime
1063     GetProcessMemoryInfo
1064     GetProcessTimes
1065     getrusage
1066     gnu_as
1067     struct_rusage_ru_maxrss
1068     ibm_asm
1069     inet_aton
1070     inline_asm
1071     isatty
1072     kbhit
1073     ldbrx
1074     libdc1394_1
1075     libdc1394_2
1076     llrint
1077     llrintf
1078     local_aligned_16
1079     local_aligned_8
1080     localtime_r
1081     log2
1082     log2f
1083     loongson
1084     lrint
1085     lrintf
1086     lzo1x_999_compress
1087     machine_ioctl_bt848_h
1088     machine_ioctl_meteor_h
1089     malloc_h
1090     MapViewOfFile
1091     memalign
1092     mkstemp
1093     mmap
1094     pld
1095     posix_memalign
1096     round
1097     roundf
1098     sdl
1099     sdl_video_size
1100     setmode
1101     sndio_h
1102     socklen_t
1103     soundcard_h
1104     poll_h
1105     setrlimit
1106     strerror_r
1107     strtok_r
1108     struct_addrinfo
1109     struct_ipv6_mreq
1110     struct_sockaddr_in6
1111     struct_sockaddr_sa_len
1112     struct_sockaddr_storage
1113     symver
1114     symver_gnu_asm
1115     symver_asm_label
1116     sys_mman_h
1117     sys_resource_h
1118     sys_select_h
1119     sys_soundcard_h
1120     sys_videoio_h
1121     ten_operands
1122     threads
1123     trunc
1124     truncf
1125     vfp_args
1126     VirtualAlloc
1127     winsock2_h
1128     xform_asm
1129     xmm_clobbers
1130     yasm
1131 "
1132
1133 # options emitted with CONFIG_ prefix but not available on command line
1134 CONFIG_EXTRA="
1135     avutil
1136     gplv3
1137     lgplv3
1138 "
1139
1140 CMDLINE_SELECT="
1141     $ARCH_EXT_LIST
1142     $CONFIG_LIST
1143     $THREADS_LIST
1144     asm
1145     cross_compile
1146     debug
1147     extra_warnings
1148     logging
1149     optimizations
1150     symver
1151     yasm
1152 "
1153
1154 PATHS_LIST='
1155     bindir
1156     datadir
1157     incdir
1158     libdir
1159     mandir
1160     prefix
1161     shlibdir
1162 '
1163
1164 CMDLINE_SET="
1165     $PATHS_LIST
1166     ar
1167     arch
1168     as
1169     build_suffix
1170     cc
1171     cpu
1172     cross_prefix
1173     dep_cc
1174     extra_version
1175     host_cc
1176     host_cflags
1177     host_ldflags
1178     host_libs
1179     host_os
1180     ld
1181     logfile
1182     malloc_prefix
1183     nm
1184     pkg_config
1185     samples
1186     source_path
1187     sysinclude
1188     sysroot
1189     target_exec
1190     target_os
1191     target_path
1192 "
1193
1194 CMDLINE_APPEND="
1195     extra_cflags
1196 "
1197
1198 # code dependency declarations
1199
1200 # architecture extensions
1201
1202 armv5te_deps="arm"
1203 armv6_deps="arm"
1204 armv6t2_deps="arm"
1205 armvfp_deps="arm"
1206 iwmmxt_deps="arm"
1207 neon_deps="arm"
1208
1209 mmi_deps="mips"
1210
1211 altivec_deps="ppc"
1212 ppc4xx_deps="ppc"
1213
1214 vis_deps="sparc"
1215
1216 x86_64_suggest="cmov fast_cmov"
1217 amd3dnow_deps="mmx"
1218 amd3dnowext_deps="amd3dnow"
1219 mmx_deps="x86"
1220 mmx2_deps="mmx"
1221 sse_deps="mmx"
1222 ssse3_deps="sse"
1223 avx_deps="ssse3"
1224
1225 aligned_stack_if_any="ppc x86"
1226 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1227 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1228 fast_unaligned_if_any="armv6 ppc x86"
1229
1230 need_memalign="altivec neon sse"
1231 inline_asm_deps="!tms470"
1232
1233 symver_if_any="symver_asm_label symver_gnu_asm"
1234
1235 # subsystems
1236 dct_select="rdft"
1237 mdct_select="fft"
1238 rdft_select="fft"
1239
1240 # decoders / encoders / hardware accelerators
1241 aac_decoder_select="mdct sinewin"
1242 aac_encoder_select="mdct sinewin"
1243 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1244 ac3_decoder_select="mdct ac3dsp ac3_parser"
1245 ac3_encoder_select="mdct ac3dsp"
1246 ac3_fixed_encoder_select="mdct ac3dsp"
1247 alac_encoder_select="lpc"
1248 amrnb_decoder_select="lsp"
1249 amrwb_decoder_select="lsp"
1250 atrac1_decoder_select="mdct sinewin"
1251 atrac3_decoder_select="mdct"
1252 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1253 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1254 cavs_decoder_select="golomb"
1255 cook_decoder_select="mdct sinewin"
1256 cscd_decoder_suggest="zlib"
1257 dca_decoder_select="mdct"
1258 dnxhd_encoder_select="aandct"
1259 dxa_decoder_select="zlib"
1260 eac3_decoder_select="ac3_decoder"
1261 eamad_decoder_select="aandct"
1262 eatgq_decoder_select="aandct"
1263 eatqi_decoder_select="aandct"
1264 ffv1_decoder_select="golomb"
1265 flac_decoder_select="golomb"
1266 flac_encoder_select="golomb lpc"
1267 flashsv_decoder_select="zlib"
1268 flashsv_encoder_select="zlib"
1269 flv_decoder_select="h263_decoder"
1270 flv_encoder_select="h263_encoder"
1271 fraps_decoder_select="huffman"
1272 h261_encoder_select="aandct"
1273 h263_decoder_select="h263_parser"
1274 h263_encoder_select="aandct"
1275 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1276 h263i_decoder_select="h263_decoder"
1277 h263p_encoder_select="h263_encoder"
1278 h264_decoder_select="golomb h264dsp h264pred"
1279 h264_dxva2_hwaccel_deps="dxva2api_h"
1280 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1281 h264_vaapi_hwaccel_select="vaapi"
1282 h264_vdpau_decoder_select="vdpau h264_decoder"
1283 imc_decoder_select="fft mdct sinewin"
1284 jpegls_decoder_select="golomb"
1285 jpegls_encoder_select="golomb"
1286 ljpeg_encoder_select="aandct"
1287 loco_decoder_select="golomb"
1288 mjpeg_encoder_select="aandct"
1289 mlp_decoder_select="mlp_parser"
1290 mp1float_decoder_select="dct"
1291 mp2float_decoder_select="dct"
1292 mp3adufloat_decoder_select="dct"
1293 mp3float_decoder_select="dct"
1294 mp3on4float_decoder_select="dct"
1295 mpeg1video_encoder_select="aandct"
1296 mpeg2video_encoder_select="aandct"
1297 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1298 mpeg4_encoder_select="h263_encoder"
1299 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1300 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1301 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1302 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1303 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1304 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1305 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1306 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1307 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1308 msmpeg4v1_decoder_select="h263_decoder"
1309 msmpeg4v1_encoder_select="h263_encoder"
1310 msmpeg4v2_decoder_select="h263_decoder"
1311 msmpeg4v2_encoder_select="h263_encoder"
1312 msmpeg4v3_decoder_select="h263_decoder"
1313 msmpeg4v3_encoder_select="h263_encoder"
1314 nellymoser_decoder_select="mdct sinewin"
1315 nellymoser_encoder_select="mdct sinewin"
1316 png_decoder_select="zlib"
1317 png_encoder_select="zlib"
1318 qcelp_decoder_select="lsp"
1319 qdm2_decoder_select="mdct rdft"
1320 ra_144_encoder_select="lpc"
1321 rv10_decoder_select="h263_decoder"
1322 rv10_encoder_select="h263_encoder"
1323 rv20_decoder_select="h263_decoder"
1324 rv20_encoder_select="h263_encoder"
1325 rv30_decoder_select="golomb h264pred"
1326 rv40_decoder_select="golomb h264pred"
1327 shorten_decoder_select="golomb"
1328 sipr_decoder_select="lsp"
1329 snow_decoder_select="dwt"
1330 snow_encoder_select="aandct dwt"
1331 svq1_encoder_select="aandct"
1332 svq3_decoder_select="golomb h264dsp h264pred"
1333 svq3_decoder_suggest="zlib"
1334 theora_decoder_select="vp3_decoder"
1335 tiff_decoder_suggest="zlib"
1336 tiff_encoder_suggest="zlib"
1337 truehd_decoder_select="mlp_decoder"
1338 tscc_decoder_select="zlib"
1339 twinvq_decoder_select="mdct lsp sinewin"
1340 vc1_decoder_select="h263_decoder"
1341 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1342 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1343 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1344 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1345 vorbis_decoder_select="mdct"
1346 vorbis_encoder_select="mdct"
1347 vp6_decoder_select="huffman"
1348 vp6a_decoder_select="vp6_decoder"
1349 vp6f_decoder_select="vp6_decoder"
1350 vp8_decoder_select="h264pred"
1351 wmapro_decoder_select="mdct sinewin"
1352 wmav1_decoder_select="mdct sinewin"
1353 wmav1_encoder_select="mdct sinewin"
1354 wmav2_decoder_select="mdct sinewin"
1355 wmav2_encoder_select="mdct sinewin"
1356 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1357 wmv1_decoder_select="h263_decoder"
1358 wmv1_encoder_select="h263_encoder"
1359 wmv2_decoder_select="h263_decoder"
1360 wmv2_encoder_select="h263_encoder"
1361 wmv3_decoder_select="vc1_decoder"
1362 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1363 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1364 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1365 zlib_decoder_select="zlib"
1366 zlib_encoder_select="zlib"
1367 zmbv_decoder_select="zlib"
1368 zmbv_encoder_select="zlib"
1369
1370 vaapi_deps="va_va_h"
1371 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1372
1373 # parsers
1374 h264_parser_select="golomb h264dsp h264pred"
1375
1376 # external libraries
1377 libdirac_decoder_deps="libdirac !libschroedinger"
1378 libdirac_encoder_deps="libdirac"
1379 libfaac_encoder_deps="libfaac"
1380 libgsm_decoder_deps="libgsm"
1381 libgsm_encoder_deps="libgsm"
1382 libgsm_ms_decoder_deps="libgsm"
1383 libgsm_ms_encoder_deps="libgsm"
1384 libmp3lame_encoder_deps="libmp3lame"
1385 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1386 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1387 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1388 libopenjpeg_decoder_deps="libopenjpeg"
1389 libschroedinger_decoder_deps="libschroedinger"
1390 libschroedinger_encoder_deps="libschroedinger"
1391 libspeex_decoder_deps="libspeex"
1392 libtheora_encoder_deps="libtheora"
1393 libvo_aacenc_encoder_deps="libvo_aacenc"
1394 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1395 libvorbis_encoder_deps="libvorbis"
1396 libvpx_decoder_deps="libvpx"
1397 libvpx_encoder_deps="libvpx"
1398 libx264_encoder_deps="libx264"
1399 libxavs_encoder_deps="libxavs"
1400 libxvid_encoder_deps="libxvid"
1401
1402 # demuxers / muxers
1403 ac3_demuxer_select="ac3_parser"
1404 asf_stream_muxer_select="asf_muxer"
1405 avisynth_demuxer_deps="avisynth"
1406 dirac_demuxer_select="dirac_parser"
1407 eac3_demuxer_select="ac3_parser"
1408 flac_demuxer_select="flac_parser"
1409 ipod_muxer_select="mov_muxer"
1410 libnut_demuxer_deps="libnut"
1411 libnut_muxer_deps="libnut"
1412 matroska_audio_muxer_select="matroska_muxer"
1413 matroska_demuxer_suggest="zlib bzlib"
1414 mov_demuxer_suggest="zlib"
1415 mp3_demuxer_select="mpegaudio_parser"
1416 mp4_muxer_select="mov_muxer"
1417 mpegtsraw_demuxer_select="mpegts_demuxer"
1418 mxf_d10_muxer_select="mxf_muxer"
1419 ogg_demuxer_select="golomb"
1420 psp_muxer_select="mov_muxer"
1421 rtp_demuxer_select="sdp_demuxer"
1422 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1423 rtsp_demuxer_select="http_protocol rtpdec"
1424 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1425 sap_demuxer_select="sdp_demuxer"
1426 sap_muxer_select="rtp_muxer rtp_protocol"
1427 sdp_demuxer_select="rtpdec"
1428 spdif_muxer_select="aac_parser"
1429 tg2_muxer_select="mov_muxer"
1430 tgp_muxer_select="mov_muxer"
1431 w64_demuxer_deps="wav_demuxer"
1432
1433 # indevs / outdevs
1434 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1435 alsa_outdev_deps="alsa_asoundlib_h"
1436 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1437 dv1394_indev_deps="dv1394 dv_demuxer"
1438 fbdev_indev_deps="linux_fb_h"
1439 jack_indev_deps="jack_jack_h"
1440 libdc1394_indev_deps="libdc1394"
1441 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1442 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1443 sndio_indev_deps="sndio_h"
1444 sndio_outdev_deps="sndio_h"
1445 v4l_indev_deps="linux_videodev_h"
1446 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1447 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1448 vfwcap_indev_extralibs="-lavicap32"
1449 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1450 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1451
1452 # protocols
1453 gopher_protocol_deps="network"
1454 http_protocol_deps="network"
1455 http_protocol_select="tcp_protocol"
1456 mmsh_protocol_select="http_protocol"
1457 mmst_protocol_deps="network"
1458 rtmp_protocol_select="tcp_protocol"
1459 rtp_protocol_select="udp_protocol"
1460 tcp_protocol_deps="network"
1461 udp_protocol_deps="network"
1462
1463 # filters
1464 blackframe_filter_deps="gpl"
1465 cropdetect_filter_deps="gpl"
1466 drawtext_filter_deps="libfreetype"
1467 frei0r_filter_deps="frei0r dlopen strtok_r"
1468 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1469 hqdn3d_filter_deps="gpl"
1470 ocv_filter_deps="libopencv"
1471 scale_filter_deps="swscale"
1472 yadif_filter_deps="gpl"
1473
1474 # libraries
1475 avdevice_deps="avcodec avformat"
1476 avformat_deps="avcodec"
1477 postproc_deps="gpl"
1478
1479 # programs
1480 ffmpeg_deps="avcodec avformat swscale"
1481 ffmpeg_select="buffer_filter"
1482 ffplay_deps="avcodec avformat swscale sdl"
1483 ffplay_select="rdft"
1484 ffprobe_deps="avcodec avformat"
1485 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1486 ffserver_extralibs='$ldl'
1487
1488 doc_deps="texi2html"
1489
1490 # tests
1491
1492 test_deps(){
1493     suf1=$1
1494     suf2=$2
1495     shift 2
1496     for v; do
1497         dep=${v%=*}
1498         tests=${v#*=}
1499         for name in ${tests}; do
1500             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1501         done
1502     done
1503 }
1504
1505 set_ne_test_deps(){
1506     eval ${1}_be_test_deps="bigendian"
1507     eval ${1}_le_test_deps="!bigendian"
1508 }
1509
1510 test_deps _encoder _decoder                                             \
1511     adpcm_g726=g726                                                     \
1512     adpcm_ima_qt                                                        \
1513     adpcm_ima_wav                                                       \
1514     adpcm_ms                                                            \
1515     adpcm_swf                                                           \
1516     adpcm_yamaha=adpcm_yam                                              \
1517     alac                                                                \
1518     asv1                                                                \
1519     asv2                                                                \
1520     bmp                                                                 \
1521     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1522     dvvideo="dv dv50"                                                   \
1523     ffv1                                                                \
1524     flac                                                                \
1525     flashsv                                                             \
1526     flv                                                                 \
1527     gif                                                                 \
1528     h261                                                                \
1529     h263="h263 h263p"                                                   \
1530     huffyuv                                                             \
1531     jpegls                                                              \
1532     mjpeg="jpg mjpeg ljpeg"                                             \
1533     mp2                                                                 \
1534     mpeg1video="mpeg mpeg1b"                                            \
1535     mpeg2video="mpeg2 mpeg2thread"                                      \
1536     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1537     msmpeg4v3=msmpeg4                                                   \
1538     msmpeg4v2                                                           \
1539     pbm=pbmpipe                                                         \
1540     pcx                                                                 \
1541     pgm="pgm pgmpipe"                                                   \
1542     png                                                                 \
1543     ppm="ppm ppmpipe"                                                   \
1544     rawvideo="rgb yuv"                                                  \
1545     roq                                                                 \
1546     rv10                                                                \
1547     rv20                                                                \
1548     sgi                                                                 \
1549     snow="snow snowll"                                                  \
1550     svq1                                                                \
1551     targa=tga                                                           \
1552     tiff                                                                \
1553     wmav1                                                               \
1554     wmav2                                                               \
1555     wmv1                                                                \
1556     wmv2                                                                \
1557
1558 test_deps _muxer _demuxer                                               \
1559     aiff                                                                \
1560     pcm_alaw=alaw                                                       \
1561     asf                                                                 \
1562     au                                                                  \
1563     avi                                                                 \
1564     dv=dv_fmt                                                           \
1565     ffm                                                                 \
1566     flv=flv_fmt                                                         \
1567     gxf                                                                 \
1568     matroska=mkv                                                        \
1569     mmf                                                                 \
1570     mov                                                                 \
1571     pcm_mulaw=mulaw                                                     \
1572     mxf                                                                 \
1573     nut                                                                 \
1574     ogg                                                                 \
1575     rawvideo=pixfmt                                                     \
1576     rm                                                                  \
1577     swf                                                                 \
1578     mpegts=ts                                                           \
1579     voc                                                                 \
1580     wav                                                                 \
1581     yuv4mpegpipe=yuv4mpeg                                               \
1582
1583 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1584 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1585
1586 set_ne_test_deps pixdesc
1587 set_ne_test_deps pixfmts_copy
1588 set_ne_test_deps pixfmts_crop
1589 set_ne_test_deps pixfmts_hflip
1590 set_ne_test_deps pixfmts_null
1591 set_ne_test_deps pixfmts_pad
1592 set_ne_test_deps pixfmts_scale
1593 set_ne_test_deps pixfmts_vflip
1594
1595 # default parameters
1596
1597 logfile="config.log"
1598
1599 # installation paths
1600 prefix_default="/usr/local"
1601 bindir_default='${prefix}/bin'
1602 datadir_default='${prefix}/share/ffmpeg'
1603 incdir_default='${prefix}/include'
1604 libdir_default='${prefix}/lib'
1605 mandir_default='${prefix}/share/man'
1606 shlibdir_default="$libdir_default"
1607
1608 # toolchain
1609 ar_default="ar"
1610 cc_default="gcc"
1611 cc_version=\"unknown\"
1612 host_cc_default="gcc"
1613 ln_s="ln -sf"
1614 nm_default="nm"
1615 objformat="elf"
1616 pkg_config_default=pkg-config
1617 ranlib="ranlib"
1618 yasmexe="yasm"
1619 nogas=":"
1620
1621 nm_opts='-g'
1622
1623 # machine
1624 arch_default=$(uname -m)
1625 cpu="generic"
1626
1627 # OS
1628 target_os_default=$(tolower $(uname -s))
1629 host_os=$target_os_default
1630
1631 # configurable options
1632 enable avcodec
1633 enable avdevice
1634 enable avfilter
1635 enable avformat
1636 enable avutil
1637 enable asm
1638 enable debug
1639 enable doc
1640 enable fastdiv
1641 enable ffmpeg
1642 enable ffplay
1643 enable ffprobe
1644 enable ffserver
1645 enable network
1646 enable optimizations
1647 enable postproc
1648 enable protocols
1649 enable static
1650 enable swscale
1651 enable swscale_alpha
1652
1653 # build settings
1654 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1655 FFSERVERLDFLAGS=-Wl,-E
1656 LIBPREF="lib"
1657 LIBSUF=".a"
1658 FULLNAME='$(NAME)$(BUILDSUF)'
1659 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1660 SLIBPREF="lib"
1661 SLIBSUF=".so"
1662 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1663 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1664 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1665 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1666
1667 CC_O='-o $@'
1668
1669 host_cflags='-D_ISOC99_SOURCE -O3 -g -Wall'
1670 host_libs='-lm'
1671
1672 target_path='$(CURDIR)'
1673
1674 # since the object filename is not given with the -MM flag, the compiler
1675 # is only able to print the basename, and we must add the path ourselves
1676 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1677 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1678
1679 # find source path
1680 source_path="$(dirname "$0")"
1681 enable source_path_used
1682 if test -f configure; then
1683     source_path="$(pwd)"
1684     disable source_path_used
1685 else
1686     source_path="$(cd "$source_path"; pwd)"
1687     echo "$source_path" | grep -q '[[:blank:]]' &&
1688         die "Out of tree builds are impossible with whitespace in source path."
1689     test -e "$source_path/config.h" &&
1690         die "Out of tree builds are impossible with config.h in source dir."
1691 fi
1692
1693 for v in "$@"; do
1694     r=${v#*=}
1695     l=${v%"$r"}
1696     r=$(sh_quote "$r")
1697     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1698 done
1699
1700 find_things(){
1701     thing=$1
1702     pattern=$2
1703     file=$source_path/$3
1704     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1705 }
1706
1707 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1708 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1709 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1710 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1711 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1712 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1713 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1714 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1715 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1716 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1717 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1718
1719 find_tests(){
1720     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1721 }
1722
1723 ACODEC_TESTS=$(find_tests acodec)
1724 VCODEC_TESTS=$(find_tests vsynth1)
1725 LAVF_TESTS=$(find_tests lavf)
1726 LAVFI_TESTS=$(find_tests lavfi)
1727 SEEK_TESTS=$(find_tests seek seek_)
1728
1729 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1730
1731 for n in $COMPONENT_LIST; do
1732     v=$(toupper ${n%s})_LIST
1733     eval enable \$$v
1734     eval ${n}_if_any="\$$v"
1735 done
1736
1737 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1738
1739 die_unknown(){
1740     echo "Unknown option \"$1\"."
1741     echo "See $0 --help for available options."
1742     exit 1
1743 }
1744
1745 show_list() {
1746     suffix=_$1
1747     shift
1748     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1749     exit 0
1750 }
1751
1752 for opt do
1753     optval="${opt#*=}"
1754     case "$opt" in
1755     --extra-ldflags=*) add_ldflags $optval
1756     ;;
1757     --extra-libs=*) add_extralibs $optval
1758     ;;
1759     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1760     ;;
1761     --enable-debug=*) debuglevel="$optval"
1762     ;;
1763     --disable-everything)
1764     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1765     ;;
1766     --enable-*=*|--disable-*=*)
1767     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1768     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1769     eval list=\$$(toupper $thing)_LIST
1770     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1771     $action $(filter "$name" $list)
1772     ;;
1773     --enable-?*|--disable-?*)
1774     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1775     if is_in $option $COMPONENT_LIST; then
1776         test $action = disable && action=unset
1777         eval $action \$$(toupper ${option%s})_LIST
1778     elif is_in $option $CMDLINE_SELECT; then
1779         $action $option
1780     else
1781         die_unknown $opt
1782     fi
1783     ;;
1784     --list-*)
1785         NAME="${opt#--list-}"
1786         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1787         NAME=${NAME%s}
1788         eval show_list $NAME \$$(toupper $NAME)_LIST
1789     ;;
1790     --help|-h) show_help
1791     ;;
1792     *)
1793     optname="${opt%%=*}"
1794     optname="${optname#--}"
1795     optname=$(echo "$optname" | sed 's/-/_/g')
1796     if is_in $optname $CMDLINE_SET; then
1797         eval $optname='$optval'
1798     elif is_in $optname $CMDLINE_APPEND; then
1799         append $optname "$optval"
1800     else
1801          die_unknown $opt
1802     fi
1803     ;;
1804     esac
1805 done
1806
1807 disabled logging && logfile=/dev/null
1808
1809 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1810 set >> $logfile
1811
1812 test -n "$cross_prefix" && enable cross_compile
1813
1814 if enabled cross_compile; then
1815     test -n "$arch" && test -n "$target_os" ||
1816         die "Must specify target arch and OS when cross-compiling"
1817 fi
1818
1819 set_default arch target_os
1820
1821 ar_default="${cross_prefix}${ar_default}"
1822 cc_default="${cross_prefix}${cc_default}"
1823 nm_default="${cross_prefix}${nm_default}"
1824 pkg_config_default="${cross_prefix}${pkg_config_default}"
1825 ranlib="${cross_prefix}${ranlib}"
1826
1827 sysinclude_default="${sysroot}/usr/include"
1828
1829 set_default cc nm pkg_config sysinclude
1830 enabled cross_compile || host_cc_default=$cc
1831 set_default host_cc
1832
1833 if ! $pkg_config --version >/dev/null 2>&1; then
1834     warn "$pkg_config not found, library detection may fail."
1835     pkg_config=false
1836 fi
1837
1838 exesuf() {
1839     case $1 in
1840         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1841     esac
1842 }
1843
1844 EXESUF=$(exesuf $target_os)
1845 HOSTEXESUF=$(exesuf $host_os)
1846
1847 # set temporary file name
1848 : ${TMPDIR:=$TEMPDIR}
1849 : ${TMPDIR:=$TMP}
1850 : ${TMPDIR:=/tmp}
1851
1852 if ! check_cmd mktemp -u XXXXXX; then
1853     # simple replacement for missing mktemp
1854     # NOT SAFE FOR GENERAL USE
1855     mktemp(){
1856         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1857     }
1858 fi
1859
1860 tmpfile(){
1861     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1862         (set -C; exec > $tmp) 2>/dev/null ||
1863         die "Unable to create temporary file in $TMPDIR."
1864     append TMPFILES $tmp
1865     eval $1=$tmp
1866 }
1867
1868 trap 'rm -f -- $TMPFILES' EXIT
1869
1870 tmpfile TMPC  .c
1871 tmpfile TMPE  $EXESUF
1872 tmpfile TMPH  .h
1873 tmpfile TMPO  .o
1874 tmpfile TMPS  .S
1875 tmpfile TMPV  .ver
1876 tmpfile TMPSH .sh
1877 tmpfile TMPASM .asm
1878
1879 unset -f mktemp
1880
1881 chmod +x $TMPE
1882
1883 # make sure we can execute files in $TMPDIR
1884 cat > $TMPSH 2>> $logfile <<EOF
1885 #! /bin/sh
1886 EOF
1887 chmod +x $TMPSH >> $logfile 2>&1
1888 if ! $TMPSH >> $logfile 2>&1; then
1889     cat <<EOF
1890 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1891 variable to another directory and make sure that it is not mounted noexec.
1892 EOF
1893     die "Sanity test failed."
1894 fi
1895
1896 filter_cflags=echo
1897 filter_cppflags=echo
1898 filter_asflags=echo
1899
1900 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1901     cc_type=llvm_gcc
1902     cc_version=__VERSION__
1903     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1904     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1905     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1906     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1907     speed_cflags='-O3'
1908     size_cflags='-Os'
1909 elif $cc -v 2>&1 | grep -qi ^gcc; then
1910     cc_type=gcc
1911     cc_version=__VERSION__
1912     gcc_version=$($cc --version | head -n1)
1913     gcc_basever=$($cc -dumpversion)
1914     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1915     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1916     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1917     if ! $cc -dumpversion | grep -q '^2\.'; then
1918         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1919         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1920     fi
1921     speed_cflags='-O3'
1922     size_cflags='-Os'
1923 elif $cc --version 2>/dev/null | grep -q Intel; then
1924     cc_type=icc
1925     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1926     cc_ident=$($cc --version | head -n1)
1927     icc_version=$($cc -dumpversion)
1928     CC_DEPFLAGS='-MMD'
1929     AS_DEPFLAGS='-MMD'
1930     speed_cflags='-O3'
1931     size_cflags='-Os'
1932     noopt_cflags='-O1'
1933 elif $cc -v 2>&1 | grep -q xlc; then
1934     cc_type=xlc
1935     cc_version="AV_STRINGIFY(__IBMC__)"
1936     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1937     speed_cflags='-O5'
1938     size_cflags='-O5 -qcompact'
1939 elif $cc -V 2>/dev/null | grep -q Compaq; then
1940     cc_type=ccc
1941     cc_version="AV_STRINGIFY(__DECC_VER)"
1942     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1943     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1944     debuglevel=3
1945     add_ldflags -Wl,-z,now # calls to libots crash without this
1946     speed_cflags='-fast'
1947     size_cflags='-O1'
1948 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1949     test -d "$sysroot" || die "No valid sysroot specified."
1950     cc_type=armcc
1951     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1952     cc_ident=$($cc --vsn | head -n1)
1953     armcc_conf="$PWD/armcc.conf"
1954     $cc --arm_linux_configure                 \
1955         --arm_linux_config_file="$armcc_conf" \
1956         --configure_sysroot="$sysroot"        \
1957         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1958         die "Error creating armcc configuration file."
1959     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1960     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1961     as_default="${cross_prefix}gcc"
1962     CC_DEPFLAGS='-MMD'
1963     AS_DEPFLAGS='-MMD'
1964     speed_cflags='-O3'
1965     size_cflags='-Os'
1966     filter_asflags="filter_out -W${armcc_opt}*"
1967 elif $cc -version 2>/dev/null | grep -q TMS470; then
1968     cc_type=tms470
1969     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1970     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1971     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1972     CC_O='-fr=$(@D)'
1973     as_default="${cross_prefix}gcc"
1974     ld_default="${cross_prefix}gcc"
1975     TMPO=$(basename $TMPC .c).o
1976     append TMPFILES $TMPO
1977     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1978     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1979     AS_DEPFLAGS='-MMD'
1980     speed_cflags='-O3 -mf=5'
1981     size_cflags='-O3 -mf=2'
1982     filter_cflags=tms470_flags
1983     tms470_flags(){
1984         for flag; do
1985             case $flag in
1986                 -march=*|-mcpu=*)
1987                     case "${flag#*=}" in
1988                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1989                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1990                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1991                         armv6*|arm11*)          echo -mv=6   ;;
1992                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1993                                                 echo -mv=5e  ;;
1994                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1995                     esac
1996                     ;;
1997                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1998                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1999                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2000                 -msoft-float)   echo --float_support=vfplib       ;;
2001                 -O[0-3]|-mf=*)  echo $flag                        ;;
2002                 -g)             echo -g -mn                       ;;
2003                 -pds=*)         echo $flag                        ;;
2004             esac
2005         done
2006     }
2007 elif $cc -v 2>&1 | grep -q clang; then
2008     cc_type=clang
2009     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2010         cc_version=__clang_version__ || cc_version=__VERSION__
2011     cc_ident=$($cc --version | head -n1)
2012     CC_DEPFLAGS='-MMD'
2013     AS_DEPFLAGS='-MMD'
2014     speed_cflags='-O3'
2015     size_cflags='-Os'
2016 elif $cc -V 2>&1 | grep -q Sun; then
2017     cc_type=suncc
2018     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2019     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2020     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2021     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2022     speed_cflags='-O5'
2023     size_cflags='-O5 -xspace'
2024     filter_cflags=suncc_flags
2025     suncc_flags(){
2026         for flag; do
2027             case $flag in
2028                 -march=*|-mcpu=*)
2029                     case "${flag#*=}" in
2030                         native)                   echo -xtarget=native       ;;
2031                         v9|niagara)               echo -xarch=sparc          ;;
2032                         ultrasparc)               echo -xarch=sparcvis       ;;
2033                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2034                         i586|pentium)             echo -xchip=pentium        ;;
2035                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2036                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2037                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2038                         pentium4*)          echo -xtarget=pentium4           ;;
2039                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2040                         *-sse3)             echo -xarch=sse3                 ;;
2041                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2042                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2043                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2044                         k8|opteron|athlon64|athlon-fx)
2045                                                   echo -xarch=sse2a          ;;
2046                         athlon*)                  echo -xarch=pentium_proa   ;;
2047                     esac
2048                     ;;
2049                 -std=c99)             echo -xc99              ;;
2050                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2051                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2052                 -W*,*)                echo $flag              ;;
2053                 -f*-*|-W*)                                    ;;
2054                 *)                    echo $flag              ;;
2055             esac
2056         done
2057     }
2058 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2059     cc_type=pathscale
2060     cc_version=__PATHSCALE__
2061     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2062     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2063     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2064     speed_cflags='-O2'
2065     size_cflags='-Os'
2066 elif $cc -v 2>&1 | grep -q Open64; then
2067     cc_type=open64
2068     cc_version=__OPEN64__
2069     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2070     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2072     speed_cflags='-O2'
2073     size_cflags='-Os'
2074 fi
2075
2076 test -n "$cc_type" && enable $cc_type ||
2077     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2078
2079 : ${as_default:=$cc}
2080 : ${dep_cc_default:=$cc}
2081 : ${ld_default:=$cc}
2082 set_default ar as dep_cc ld
2083
2084 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2085 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2086
2087 add_cflags $extra_cflags
2088 add_asflags $extra_cflags
2089
2090 if test -n "$sysroot"; then
2091     case "$cc_type" in
2092         gcc|llvm_gcc|clang)
2093             add_cppflags --sysroot="$sysroot"
2094             add_ldflags --sysroot="$sysroot"
2095         ;;
2096         tms470)
2097             add_cppflags -I"$sysinclude"
2098             add_ldflags  --sysroot="$sysroot"
2099         ;;
2100     esac
2101 fi
2102
2103 if test "$cpu" = host; then
2104     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2105
2106     case "$cc_type" in
2107         gcc|llvm_gcc)
2108             check_native(){
2109                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2110                 sed -n "/$1=/{
2111                             s/.*$1=\\([^ ]*\\).*/\\1/
2112                             p
2113                             q
2114                         }" $TMPE
2115             }
2116             cpu=$(check_native -march || check_native -mcpu)
2117         ;;
2118     esac
2119
2120     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2121 fi
2122
2123 # Deal with common $arch aliases
2124 case "$arch" in
2125     arm*)
2126         arch="arm"
2127     ;;
2128     mips|mipsel|IP*)
2129         arch="mips"
2130     ;;
2131     mips64*)
2132         arch="mips"
2133         subarch="mips64"
2134     ;;
2135     parisc|hppa)
2136         arch="parisc"
2137     ;;
2138     parisc64|hppa64)
2139         arch="parisc"
2140         subarch="parisc64"
2141     ;;
2142     "Power Macintosh"|ppc|powerpc)
2143         arch="ppc"
2144     ;;
2145     ppc64|powerpc64)
2146         arch="ppc"
2147         subarch="ppc64"
2148     ;;
2149     s390|s390x)
2150         arch="s390"
2151     ;;
2152     sh4|sh)
2153         arch="sh4"
2154     ;;
2155     sun4u|sparc64)
2156         arch="sparc"
2157         subarch="sparc64"
2158     ;;
2159     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2160         arch="x86"
2161     ;;
2162 esac
2163
2164 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2165 enable $arch
2166
2167 # Add processor-specific flags
2168 if test "$cpu" = generic; then
2169     : do nothing
2170 elif enabled ppc; then
2171
2172     case $(tolower $cpu) in
2173         601|ppc601|powerpc601)
2174             cpuflags="-mcpu=601"
2175             disable altivec
2176         ;;
2177         603*|ppc603*|powerpc603*)
2178             cpuflags="-mcpu=603"
2179             disable altivec
2180         ;;
2181         604*|ppc604*|powerpc604*)
2182             cpuflags="-mcpu=604"
2183             disable altivec
2184         ;;
2185         g3|75*|ppc75*|powerpc75*)
2186             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2187             disable altivec
2188         ;;
2189         g4|745*|ppc745*|powerpc745*)
2190             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2191         ;;
2192         74*|ppc74*|powerpc74*)
2193             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2194         ;;
2195         g5|970|ppc970|powerpc970|power4*)
2196             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2197         ;;
2198         cell)
2199             cpuflags="-mcpu=cell"
2200             enable ldbrx
2201         ;;
2202         e500v2)
2203             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2204             disable altivec
2205         ;;
2206         e500)
2207             cpuflags="-mcpu=8540 -mhard-float"
2208             disable altivec
2209         ;;
2210     esac
2211
2212 elif enabled x86; then
2213
2214     case $cpu in
2215         i[345]86|pentium)
2216             cpuflags="-march=$cpu"
2217             disable mmx
2218         ;;
2219         # targets that do NOT support conditional mov (cmov)
2220         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2221             cpuflags="-march=$cpu"
2222             disable cmov
2223         ;;
2224         # targets that do support conditional mov (cmov)
2225         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2226             cpuflags="-march=$cpu"
2227             enable cmov
2228             enable fast_cmov
2229         ;;
2230         # targets that do support conditional mov but on which it's slow
2231         pentium4|pentium4m|prescott|nocona)
2232             cpuflags="-march=$cpu"
2233             enable cmov
2234             disable fast_cmov
2235         ;;
2236     esac
2237
2238 elif enabled sparc; then
2239
2240     case $cpu in
2241         niagara)
2242             cpuflags="-mcpu=$cpu"
2243             disable vis
2244         ;;
2245         sparc64)
2246             cpuflags="-mcpu=v9"
2247         ;;
2248     esac
2249
2250 elif enabled arm; then
2251
2252     case $cpu in
2253         armv*)
2254             cpuflags="-march=$cpu"
2255             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2256         ;;
2257         *)
2258             cpuflags="-mcpu=$cpu"
2259             case $cpu in
2260                 cortex-a*)                               subarch=armv7a  ;;
2261                 cortex-r*)                               subarch=armv7r  ;;
2262                 cortex-m*)                               subarch=armv7m  ;;
2263                 arm11*)                                  subarch=armv6   ;;
2264                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2265                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2266             esac
2267         ;;
2268     esac
2269
2270 elif enabled alpha; then
2271
2272     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2273
2274 elif enabled bfin; then
2275
2276     cpuflags="-mcpu=$cpu"
2277
2278 elif enabled mips; then
2279
2280     cpuflags="-march=$cpu"
2281
2282 elif enabled avr32; then
2283
2284     case $cpu in
2285         ap7[02]0[0-2])
2286             subarch="avr32_ap"
2287             cpuflags="-mpart=$cpu"
2288         ;;
2289         ap)
2290             subarch="avr32_ap"
2291             cpuflags="-march=$cpu"
2292         ;;
2293         uc3[ab]*)
2294             subarch="avr32_uc"
2295             cpuflags="-mcpu=$cpu"
2296         ;;
2297         uc)
2298             subarch="avr32_uc"
2299             cpuflags="-march=$cpu"
2300         ;;
2301     esac
2302
2303 fi
2304
2305 add_cflags $cpuflags
2306 add_asflags $cpuflags
2307
2308 # compiler sanity check
2309 check_exec <<EOF
2310 int main(void){ return 0; }
2311 EOF
2312 if test "$?" != 0; then
2313     echo "$cc is unable to create an executable file."
2314     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2315         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2316         echo "Only do this if you know what cross compiling means."
2317     fi
2318     die "C compiler test failed."
2319 fi
2320
2321 add_cppflags -D_ISOC99_SOURCE
2322 check_cflags -std=c99
2323 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2324 #include <stdlib.h>
2325 EOF
2326 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2327 #include <stdlib.h>
2328 EOF
2329
2330 check_host_cflags -std=c99
2331
2332 case "$arch" in
2333     alpha|ia64|mips|parisc|sparc)
2334         spic=$shared
2335     ;;
2336     x86)
2337         subarch="x86_32"
2338         check_cc <<EOF && subarch="x86_64"
2339         int test[(int)sizeof(char*) - 7];
2340 EOF
2341         if test "$subarch" = "x86_64"; then
2342             spic=$shared
2343         fi
2344     ;;
2345 esac
2346
2347 enable $subarch
2348 enabled spic && enable pic
2349
2350 # OS specific
2351 case $target_os in
2352     haiku)
2353         prefix_default="/boot/common"
2354         network_extralibs="-lnetwork"
2355         host_libs=
2356         ;;
2357     sunos)
2358         FFSERVERLDFLAGS=""
2359         SHFLAGS='-shared -Wl,-h,$$(@F)'
2360         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2361         network_extralibs="-lsocket -lnsl"
2362         add_cppflags -D__EXTENSIONS__
2363         nm_opts='-P -g'
2364         ;;
2365     netbsd)
2366         disable symver
2367         oss_indev_extralibs="-lossaudio"
2368         oss_outdev_extralibs="-lossaudio"
2369         ;;
2370     openbsd)
2371         enable malloc_aligned
2372         # On OpenBSD 4.5. the compiler does not use PIC unless
2373         # explicitly using -fPIC. Libav builds fine without PIC,
2374         # however the generated executable will not do anything
2375         # (simply quits with exit-code 1, no crash, no output).
2376         # Thus explicitly enable PIC here.
2377         enable pic
2378         disable symver
2379         SHFLAGS='-shared'
2380         oss_indev_extralibs="-lossaudio"
2381         oss_outdev_extralibs="-lossaudio"
2382         ;;
2383     dragonfly)
2384         enable malloc_aligned
2385         disable symver
2386         ;;
2387     freebsd)
2388         enable malloc_aligned
2389         ;;
2390     bsd/os)
2391         add_extralibs -lpoll -lgnugetopt
2392         ;;
2393     darwin)
2394         enable malloc_aligned
2395         gas="gas-preprocessor.pl $cc"
2396         enabled ppc && add_asflags -force_cpusubtype_ALL
2397         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2398         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2399         add_ldflags -Wl,-dynamic,-search_paths_first
2400         SLIBSUF=".dylib"
2401         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2402         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2403         FFSERVERLDFLAGS=-Wl,-bind_at_load
2404         objformat="macho"
2405         enabled x86_64 && objformat="macho64"
2406         enabled_any pic shared ||
2407             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2408         ;;
2409     mingw32*)
2410         if test $target_os = "mingw32ce"; then
2411             disable network
2412         else
2413             target_os=mingw32
2414         fi
2415         LIBTARGET=i386
2416         if enabled x86_64; then
2417             enable malloc_aligned
2418             LIBTARGET="i386:x86-64"
2419         elif enabled arm; then
2420             LIBTARGET=arm-wince
2421         fi
2422         shlibdir_default="$bindir_default"
2423         SLIBPREF=""
2424         SLIBSUF=".dll"
2425         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2426         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2427         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2428         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2429             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2430             install -d "$(LIBDIR)"; \
2431             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2432         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2433         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'
2434         objformat="win32"
2435         dlltool="${cross_prefix}dlltool"
2436         enable dos_paths
2437         check_cflags -fno-common
2438         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2439                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2440                 die "ERROR: MinGW runtime version must be >= 3.15."
2441         add_cppflags -U__STRICT_ANSI__
2442         ;;
2443     cygwin*)
2444         target_os=cygwin
2445         shlibdir_default="$bindir_default"
2446         SLIBPREF="cyg"
2447         SLIBSUF=".dll"
2448         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2449         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2450         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2451         objformat="win32"
2452         enable dos_paths
2453         check_cflags -fno-common
2454         ;;
2455     *-dos|freedos|opendos)
2456         network_extralibs="-lsocket"
2457         objformat="coff"
2458         enable dos_paths
2459         ;;
2460     linux)
2461         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2462         enable dv1394
2463         ;;
2464     irix*)
2465         target_os=irix
2466         ranlib="echo ignoring ranlib"
2467         ;;
2468     os/2*)
2469         ln_s="cp -f"
2470         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2471         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2472         FFSERVERLDFLAGS=""
2473         LIBSUF="_s.a"
2474         SLIBPREF=""
2475         SLIBSUF=".dll"
2476         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2477         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2478         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2479           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2480           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2481           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2482           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2483           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2484         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2485           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2486         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2487         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2488         enable dos_paths
2489         ;;
2490     gnu/kfreebsd)
2491         ;;
2492     gnu)
2493         ;;
2494     qnx)
2495         add_cppflags -D_QNX_SOURCE
2496         network_extralibs="-lsocket"
2497         ;;
2498     symbian)
2499         SLIBSUF=".dll"
2500         enable dos_paths
2501         add_cflags --include=$sysinclude/gcce/gcce.h
2502         ;;
2503     none)
2504         ;;
2505     *)
2506         die "Unknown OS '$target_os'."
2507         ;;
2508 esac
2509
2510 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2511
2512 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2513
2514 set_default $PATHS_LIST
2515
2516 # we need to build at least one lib type
2517 if ! enabled_any static shared; then
2518     cat <<EOF
2519 At least one library type must be built.
2520 Specify --enable-static to build the static libraries or --enable-shared to
2521 build the shared libraries as well. To only build the shared libraries specify
2522 --disable-static in addition to --enable-shared.
2523 EOF
2524     exit 1;
2525 fi
2526
2527 disabled static && LIBNAME=""
2528
2529 die_license_disabled() {
2530     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2531 }
2532
2533 die_license_disabled gpl libx264
2534 die_license_disabled gpl libxavs
2535 die_license_disabled gpl libxvid
2536 die_license_disabled gpl x11grab
2537
2538 die_license_disabled nonfree libfaac
2539
2540 die_license_disabled version3 libopencore_amrnb
2541 die_license_disabled version3 libopencore_amrwb
2542 die_license_disabled version3 libvo_aacenc
2543 die_license_disabled version3 libvo_amrwbenc
2544
2545 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2546
2547 disabled optimizations || check_cflags -fomit-frame-pointer
2548
2549 enable_pic() {
2550     enable pic
2551     add_cppflags -DPIC
2552     add_cflags   -fPIC
2553     add_asflags  -fPIC
2554 }
2555
2556 enabled pic && enable_pic
2557
2558 check_cc <<EOF || die "Symbol mangling check failed."
2559 int ff_extern;
2560 EOF
2561 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2562 extern_prefix=${sym%%ff_extern*}
2563
2564 check_cc <<EOF && enable inline_asm
2565 void foo(void) { __asm__ volatile ("" ::); }
2566 EOF
2567
2568 _restrict=
2569 for restrict_keyword in restrict __restrict__ __restrict; do
2570     check_cc <<EOF && _restrict=$restrict_keyword && break
2571 void foo(char * $restrict_keyword p);
2572 EOF
2573 done
2574
2575 check_cc <<EOF && enable attribute_packed
2576 struct { int x; } __attribute__((packed)) x;
2577 EOF
2578
2579 check_cc <<EOF && enable attribute_may_alias
2580 union { int x; } __attribute__((may_alias)) x;
2581 EOF
2582
2583 check_cc <<EOF || die "endian test failed"
2584 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2585 EOF
2586 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2587
2588 if enabled alpha; then
2589
2590     check_cflags -mieee
2591
2592 elif enabled arm; then
2593
2594     check_cflags -marm
2595     nogas=die
2596
2597     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2598         enable vfp_args
2599     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2600         case "${cross_prefix:-$cc}" in
2601             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2602             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2603 __asm__ (".eabi_attribute 28, 1");
2604 int main(void) { return 0; }
2605 EOF
2606         esac
2607         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2608     fi
2609
2610     # We have to check if pld is a nop and disable it.
2611     check_asm pld '"pld [r0]"'
2612
2613     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2614     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2615     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2616     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2617     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2618     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2619
2620     enabled_all armv6t2 shared !pic && enable_pic
2621
2622 elif enabled mips; then
2623
2624     check_asm loongson '"dmult.g $1, $2, $3"'
2625     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2626
2627 elif enabled ppc; then
2628
2629     enable local_aligned_8 local_aligned_16
2630
2631     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2632     check_asm ibm_asm   '"add 0, 0, 0"'
2633     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2634     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2635
2636     # AltiVec flags: The FSF version of GCC differs from the Apple version
2637     if enabled altivec; then
2638         nogas=warn
2639         check_cflags -maltivec -mabi=altivec &&
2640         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2641         check_cflags -faltivec
2642
2643         # check if our compiler supports Motorola AltiVec C API
2644         check_cc <<EOF || disable altivec
2645 $inc_altivec_h
2646 int main(void) {
2647     vector signed int v1, v2, v3;
2648     v1 = vec_add(v2,v3);
2649     return 0;
2650 }
2651 EOF
2652
2653         # check if our compiler supports braces for vector declarations
2654         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2655 $inc_altivec_h
2656 int main (void) { (vector int) {1}; return 0; }
2657 EOF
2658     fi
2659
2660 elif enabled sparc; then
2661
2662     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2663         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2664
2665 elif enabled x86; then
2666
2667     enable local_aligned_8 local_aligned_16
2668
2669     # check whether EBP is available on x86
2670     # As 'i' is stored on the stack, this program will crash
2671     # if the base pointer is used to access it because the
2672     # base pointer is cleared in the inline assembly code.
2673     check_exec_crash <<EOF && enable ebp_available
2674     volatile int i=0;
2675     __asm__ volatile (
2676         "xorl %%ebp, %%ebp"
2677     ::: "%ebp");
2678     return i;
2679 EOF
2680
2681     # check whether EBX is available on x86
2682     check_asm ebx_available '""::"b"(0)' &&
2683         check_asm ebx_available '"":::"%ebx"'
2684
2685     # check whether xmm clobbers are supported
2686     check_asm xmm_clobbers '"":::"%xmm0"'
2687
2688     # check whether more than 10 operands are supported
2689     check_cc <<EOF && enable ten_operands
2690 int main(void) {
2691     int x=0;
2692     __asm__ volatile(
2693         ""
2694         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2695     );
2696     return 0;
2697 }
2698 EOF
2699
2700     # check whether binutils is new enough to compile SSSE3/MMX2
2701     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2702     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2703
2704     check_asm bswap '"bswap %%eax" ::: "%eax"'
2705
2706     if ! disabled_any asm mmx yasm; then
2707         if check_cmd $yasmexe --version; then
2708             enabled x86_64 && yasm_extra="-m amd64"
2709             yasm_debug="-g dwarf2"
2710         elif check_cmd nasm -v; then
2711             yasmexe=nasm
2712             yasm_debug="-g -F dwarf"
2713             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2714         fi
2715
2716         YASMFLAGS="-f $objformat $yasm_extra"
2717         enabled pic               && append YASMFLAGS "-DPIC"
2718         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2719         case "$objformat" in
2720             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2721         esac
2722
2723         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2724             die "yasm not found, use --disable-yasm for a crippled build"
2725         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2726     fi
2727
2728     case "$cpu" in
2729         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2730             disable fast_clz
2731         ;;
2732     esac
2733
2734 fi
2735
2736 if enabled asm; then
2737     as=${gas:=$as}
2738     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2739         $nogas "GNU assembler not found, install gas-preprocessor"
2740 fi
2741
2742 check_ldflags -Wl,--as-needed
2743
2744 if check_func dlopen; then
2745     ldl=
2746 elif check_func dlopen -ldl; then
2747     ldl=-ldl
2748 fi
2749
2750 if enabled network; then
2751     check_type "sys/types.h sys/socket.h" socklen_t
2752     check_type netdb.h "struct addrinfo"
2753     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2754     check_type netinet/in.h "struct sockaddr_in6"
2755     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2756     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2757     # Prefer arpa/inet.h over winsock2
2758     if check_header arpa/inet.h ; then
2759         check_func closesocket
2760     elif check_header winsock2.h ; then
2761         check_func_headers winsock2.h closesocket -lws2 && \
2762             network_extralibs="-lws2" || \
2763         { check_func_headers winsock2.h closesocket -lws2_32 && \
2764             network_extralibs="-lws2_32"; }
2765         check_type ws2tcpip.h socklen_t
2766         check_type ws2tcpip.h "struct addrinfo"
2767         check_type ws2tcpip.h "struct ipv6_mreq"
2768         check_type ws2tcpip.h "struct sockaddr_in6"
2769         check_type ws2tcpip.h "struct sockaddr_storage"
2770         check_struct winsock2.h "struct sockaddr" sa_len
2771     else
2772         disable network
2773     fi
2774 fi
2775
2776 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2777 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2778
2779 check_func  fcntl
2780 check_func  fork
2781 check_func  getaddrinfo $network_extralibs
2782 check_func  gethrtime
2783 check_func  getrusage
2784 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2785 check_func  inet_aton $network_extralibs
2786 check_func  isatty
2787 check_func  localtime_r
2788 check_func  ${malloc_prefix}memalign            && enable memalign
2789 check_func  mkstemp
2790 check_func  mmap
2791 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2792 check_func  setrlimit
2793 check_func  strerror_r
2794 check_func  strtok_r
2795 check_func_headers conio.h kbhit
2796 check_func_headers io.h setmode
2797 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2798 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2799 check_func_headers windows.h GetProcessTimes
2800 check_func_headers windows.h MapViewOfFile
2801 check_func_headers windows.h VirtualAlloc
2802
2803 check_header dlfcn.h
2804 check_header dxva2api.h
2805 check_header malloc.h
2806 check_header poll.h
2807 check_header sys/mman.h
2808 check_header sys/resource.h
2809 check_header sys/select.h
2810 check_header vdpau/vdpau.h
2811 check_header vdpau/vdpau_x11.h
2812 check_header X11/extensions/XvMClib.h
2813
2814 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2815
2816 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2817      enabled_any $need_memalign ; then
2818     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2819 fi
2820
2821 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2822 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2823
2824 # check for some common methods of building with pthread support
2825 # do this before the optional library checks as some of them require pthreads
2826 if ! disabled pthreads && ! enabled w32threads; then
2827     enable pthreads
2828     if check_func pthread_create; then
2829         :
2830     elif check_func pthread_create -pthread; then
2831         add_cflags -pthread
2832         add_extralibs -pthread
2833     elif check_func pthread_create -pthreads; then
2834         add_cflags -pthreads
2835         add_extralibs -pthreads
2836     elif check_func pthread_create -lpthreadGC2; then
2837         add_extralibs -lpthreadGC2
2838     elif ! check_lib pthread.h pthread_create -lpthread; then
2839         disable pthreads
2840     fi
2841 fi
2842
2843 for thread in $THREADS_LIST; do
2844     if enabled $thread; then
2845         test -n "$thread_type" &&
2846             die "ERROR: Only one thread type must be selected." ||
2847             thread_type="$thread"
2848     fi
2849 done
2850
2851 check_lib math.h sin -lm && LIBM="-lm"
2852 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2853
2854 check_mathfunc exp2
2855 check_mathfunc exp2f
2856 check_mathfunc llrint
2857 check_mathfunc llrintf
2858 check_mathfunc log2
2859 check_mathfunc log2f
2860 check_mathfunc lrint
2861 check_mathfunc lrintf
2862 check_mathfunc round
2863 check_mathfunc roundf
2864 check_mathfunc trunc
2865 check_mathfunc truncf
2866
2867 # these are off by default, so fail if requested and not available
2868 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2869 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2870 enabled libdirac   && require_pkg_config dirac                          \
2871     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2872     "dirac_decoder_init dirac_encoder_init"
2873 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2874 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2875 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2876 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2877 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2878 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2879 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2880 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2881 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2882 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2883 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2884 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2885 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2886 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2887 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2888 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2889 enabled libvpx     && {
2890     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2891                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2892     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2893                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2894 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2895                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2896                         die "ERROR: libx264 version must be >= 0.99."; }
2897 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2898 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2899 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2900
2901 # libdc1394 check
2902 if enabled libdc1394; then
2903     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2904         enable libdc1394_2; } ||
2905     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2906         enable libdc1394_1; } ||
2907     die "ERROR: No version of libdc1394 found "
2908 fi
2909
2910 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2911     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2912     enable sdl &&
2913     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2914 fi
2915
2916 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2917
2918 check_header linux/fb.h
2919 check_header linux/videodev.h
2920 check_header linux/videodev2.h
2921 check_header sys/videoio.h
2922
2923 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2924 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2925 # w32api 3.12 had it defined wrong
2926 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2927
2928 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2929 { check_header dev/bktr/ioctl_meteor.h &&
2930   check_header dev/bktr/ioctl_bt848.h; } ||
2931 { check_header machine/ioctl_meteor.h &&
2932   check_header machine/ioctl_bt848.h; } ||
2933 { check_header dev/video/meteor/ioctl_meteor.h &&
2934   check_header dev/video/bktr/ioctl_bt848.h; } ||
2935 check_header dev/ic/bt8xx.h
2936
2937 check_header sndio.h
2938 check_header sys/soundcard.h
2939 check_header soundcard.h
2940
2941 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2942
2943 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2944
2945 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2946
2947 enabled x11grab                         &&
2948 check_header X11/Xlib.h                 &&
2949 check_header X11/extensions/XShm.h      &&
2950 check_header X11/extensions/Xfixes.h    &&
2951 check_func XOpenDisplay -lX11           &&
2952 check_func XShmCreateImage -lX11 -lXext &&
2953 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2954
2955 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2956 check_cpp_condition \
2957     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2958     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2959       disable vdpau; }
2960 fi
2961
2962 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2963
2964 # add some useful compiler flags if supported
2965 check_cflags -Wdeclaration-after-statement
2966 check_cflags -Wall
2967 check_cflags -Wno-parentheses
2968 check_cflags -Wno-switch
2969 check_cflags -Wdisabled-optimization
2970 check_cflags -Wpointer-arith
2971 check_cflags -Wredundant-decls
2972 check_cflags -Wno-pointer-sign
2973 check_cflags -Wcast-qual
2974 check_cflags -Wwrite-strings
2975 check_cflags -Wtype-limits
2976 check_cflags -Wundef
2977 check_cflags -Wmissing-prototypes
2978 enabled extra_warnings && check_cflags -Winline
2979
2980 # add some linker flags
2981 check_ldflags -Wl,--warn-common
2982 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2983 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2984
2985 echo "X{};" > $TMPV
2986 if test_ldflags -Wl,--version-script,$TMPV; then
2987     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2988     check_cc <<EOF && enable symver_asm_label
2989 void ff_foo(void) __asm__ ("av_foo@VERSION");
2990 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2991 EOF
2992     check_cc <<EOF && enable symver_gnu_asm
2993 __asm__(".symver ff_foo,av_foo@VERSION");
2994 void ff_foo(void) {}
2995 EOF
2996 fi
2997
2998 if enabled small; then
2999     add_cflags $size_cflags
3000     optimizations="small"
3001 elif enabled optimizations; then
3002     add_cflags $speed_cflags
3003 else
3004     add_cflags $noopt_cflags
3005 fi
3006 check_cflags -fno-math-errno
3007 check_cflags -fno-signed-zeros
3008
3009 if enabled icc; then
3010     # Just warnings, no remarks
3011     check_cflags -w1
3012     # -wd: Disable following warnings
3013     # 144, 167, 556: -Wno-pointer-sign
3014     # 1292: attribute "foo" ignored
3015     # 10006: ignoring unknown option -fno-signed-zeros
3016     # 10148: ignoring unknown option -Wno-parentheses
3017     # 10156: ignoring option '-W'; no argument required
3018     check_cflags -wd144,167,556,1292,10006,10148,10156
3019     # 11030: Warning unknown option --as-needed
3020     # 10156: ignoring option '-export'; no argument required
3021     check_ldflags -wd10156,11030
3022     # Allow to compile with optimizations
3023     check_ldflags -march=$cpu
3024     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3025     enable ebp_available
3026     if enabled x86_32; then
3027         test ${icc_version%%.*} -ge 11 && \
3028             check_cflags -falign-stack=maintain-16-byte || \
3029             disable aligned_stack
3030     fi
3031 elif enabled ccc; then
3032     # disable some annoying warnings
3033     add_cflags -msg_disable cvtu32to64
3034     add_cflags -msg_disable embedcomment
3035     add_cflags -msg_disable needconstext
3036     add_cflags -msg_disable nomainieee
3037     add_cflags -msg_disable ptrmismatch1
3038     add_cflags -msg_disable unreachcode
3039 elif enabled gcc; then
3040     check_cflags -fno-tree-vectorize
3041     check_cflags -Werror=implicit-function-declaration
3042     check_cflags -Werror=missing-prototypes
3043 elif enabled llvm_gcc; then
3044     check_cflags -mllvm -stack-alignment=16
3045 elif enabled clang; then
3046     check_cflags -mllvm -stack-alignment=16
3047     check_cflags -Qunused-arguments
3048 elif enabled armcc; then
3049     # 2523: use of inline assembler is deprecated
3050     add_cflags -W${armcc_opt},--diag_suppress=2523
3051     add_cflags -W${armcc_opt},--diag_suppress=1207
3052     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3053     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3054 elif enabled tms470; then
3055     add_cflags -pds=824 -pds=837
3056 elif enabled pathscale; then
3057     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3058 fi
3059
3060 enabled_any $THREADS_LIST      && enable threads
3061
3062 check_deps $CONFIG_LIST       \
3063            $CONFIG_EXTRA      \
3064            $HAVE_LIST         \
3065            $DECODER_LIST      \
3066            $ENCODER_LIST      \
3067            $HWACCEL_LIST      \
3068            $PARSER_LIST       \
3069            $BSF_LIST          \
3070            $DEMUXER_LIST      \
3071            $MUXER_LIST        \
3072            $FILTER_LIST       \
3073            $INDEV_LIST        \
3074            $OUTDEV_LIST       \
3075            $PROTOCOL_LIST     \
3076            $ACODEC_TESTS      \
3077            $VCODEC_TESTS      \
3078            $LAVF_TESTS        \
3079            $LAVFI_TESTS       \
3080            $SEEK_TESTS        \
3081
3082 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3083
3084 echo "install prefix            $prefix"
3085 echo "source path               $source_path"
3086 echo "C compiler                $cc"
3087 echo "ARCH                      $arch ($cpu)"
3088 if test "$build_suffix" != ""; then
3089     echo "build suffix              $build_suffix"
3090 fi
3091 if test "$extra_version" != ""; then
3092     echo "version string suffix     $extra_version"
3093 fi
3094 echo "big-endian                ${bigendian-no}"
3095 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3096 if enabled x86; then
3097     echo "yasm                      ${yasm-no}"
3098     echo "MMX enabled               ${mmx-no}"
3099     echo "MMX2 enabled              ${mmx2-no}"
3100     echo "3DNow! enabled            ${amd3dnow-no}"
3101     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3102     echo "SSE enabled               ${sse-no}"
3103     echo "SSSE3 enabled             ${ssse3-no}"
3104     echo "CMOV enabled              ${cmov-no}"
3105     echo "CMOV is fast              ${fast_cmov-no}"
3106     echo "EBX available             ${ebx_available-no}"
3107     echo "EBP available             ${ebp_available-no}"
3108     echo "10 operands supported     ${ten_operands-no}"
3109 fi
3110 if enabled arm; then
3111     echo "ARMv5TE enabled           ${armv5te-no}"
3112     echo "ARMv6 enabled             ${armv6-no}"
3113     echo "ARMv6T2 enabled           ${armv6t2-no}"
3114     echo "ARM VFP enabled           ${armvfp-no}"
3115     echo "IWMMXT enabled            ${iwmmxt-no}"
3116     echo "NEON enabled              ${neon-no}"
3117 fi
3118 if enabled mips; then
3119     echo "MMI enabled               ${mmi-no}"
3120 fi
3121 if enabled ppc; then
3122     echo "AltiVec enabled           ${altivec-no}"
3123     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3124     echo "dcbzl available           ${dcbzl-no}"
3125 fi
3126 if enabled sparc; then
3127     echo "VIS enabled               ${vis-no}"
3128 fi
3129 echo "debug symbols             ${debug-no}"
3130 echo "optimizations             ${optimizations-no}"
3131 echo "static                    ${static-no}"
3132 echo "shared                    ${shared-no}"
3133 echo "postprocessing support    ${postproc-no}"
3134 echo "new filter support        ${avfilter-no}"
3135 echo "network support           ${network-no}"
3136 echo "threading support         ${thread_type-no}"
3137 echo "SDL support               ${sdl-no}"
3138 echo "Sun medialib support      ${mlib-no}"
3139 echo "AVISynth enabled          ${avisynth-no}"
3140 echo "frei0r enabled            ${frei0r-no}"
3141 echo "libdc1394 support         ${libdc1394-no}"
3142 echo "libdirac enabled          ${libdirac-no}"
3143 echo "libfaac enabled           ${libfaac-no}"
3144 echo "libgsm enabled            ${libgsm-no}"
3145 echo "libmp3lame enabled        ${libmp3lame-no}"
3146 echo "libnut enabled            ${libnut-no}"
3147 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3148 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3149 echo "libopencv support         ${libopencv-no}"
3150 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3151 echo "librtmp enabled           ${librtmp-no}"
3152 echo "libschroedinger enabled   ${libschroedinger-no}"
3153 echo "libspeex enabled          ${libspeex-no}"
3154 echo "libtheora enabled         ${libtheora-no}"
3155 echo "libva enabled             ${vaapi-no}"
3156 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3157 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3158 echo "libvorbis enabled         ${libvorbis-no}"
3159 echo "libvpx enabled            ${libvpx-no}"
3160 echo "libx264 enabled           ${libx264-no}"
3161 echo "libxavs enabled           ${libxavs-no}"
3162 echo "libxvid enabled           ${libxvid-no}"
3163 echo "zlib enabled              ${zlib-no}"
3164 echo "bzlib enabled             ${bzlib-no}"
3165 echo
3166
3167 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3168     echo "Enabled ${type}s:"
3169     eval list=\$$(toupper $type)_LIST
3170     print_enabled '_*' $list | sort | pr -r -3 -t
3171     echo
3172 done
3173
3174 license="LGPL version 2.1 or later"
3175 if enabled nonfree; then
3176     license="nonfree and unredistributable"
3177 elif enabled gplv3; then
3178     license="GPL version 3 or later"
3179 elif enabled lgplv3; then
3180     license="LGPL version 3 or later"
3181 elif enabled gpl; then
3182     license="GPL version 2 or later"
3183 fi
3184
3185 echo "License: $license"
3186
3187 echo "Creating config.mak and config.h..."
3188
3189 # build tree in object directory if source path is different from current one
3190 if enabled source_path_used; then
3191     DIRS="
3192         doc
3193         libavcodec
3194         libavcodec/$arch
3195         libavdevice
3196         libavfilter
3197         libavfilter/$arch
3198         libavformat
3199         libavutil
3200         libavutil/$arch
3201         libpostproc
3202         libswscale
3203         libswscale/$arch
3204         tests
3205         tools
3206     "
3207     FILES="
3208         Makefile
3209         common.mak
3210         subdir.mak
3211         doc/texi2pod.pl
3212         libavcodec/Makefile
3213         libavcodec/${arch}/Makefile
3214         libavdevice/Makefile
3215         libavfilter/Makefile
3216         libavfilter/${arch}/Makefile
3217         libavformat/Makefile
3218         libavutil/Makefile
3219         libpostproc/Makefile
3220         libswscale/Makefile
3221     "
3222     map 'mkdir -p $v' $DIRS;
3223     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3224 fi
3225
3226 config_files="$TMPH config.mak"
3227
3228 cat > config.mak <<EOF
3229 # Automatically generated by configure - do not modify!
3230 ifndef LIBAV_CONFIG_MAK
3231 LIBAV_CONFIG_MAK=1
3232 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3233 prefix=$prefix
3234 LIBDIR=\$(DESTDIR)$libdir
3235 SHLIBDIR=\$(DESTDIR)$shlibdir
3236 INCDIR=\$(DESTDIR)$incdir
3237 BINDIR=\$(DESTDIR)$bindir
3238 DATADIR=\$(DESTDIR)$datadir
3239 MANDIR=\$(DESTDIR)$mandir
3240 SRC_PATH="$source_path"
3241 SRC_PATH_BARE=$source_path
3242 BUILD_ROOT="$PWD"
3243 CC_IDENT=$cc_ident
3244 ARCH=$arch
3245 CC=$cc
3246 AS=$as
3247 LD=$ld
3248 DEPCC=$dep_cc
3249 YASM=$yasmexe
3250 YASMDEP=$yasmexe
3251 AR=$ar
3252 RANLIB=$ranlib
3253 LN_S=$ln_s
3254 CPPFLAGS=$CPPFLAGS
3255 CFLAGS=$CFLAGS
3256 ASFLAGS=$ASFLAGS
3257 CC_O=$CC_O
3258 DLLTOOL=$dlltool
3259 LDFLAGS=$LDFLAGS
3260 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3261 SHFLAGS=$SHFLAGS
3262 YASMFLAGS=$YASMFLAGS
3263 BUILDSUF=$build_suffix
3264 FULLNAME=$FULLNAME
3265 LIBPREF=$LIBPREF
3266 LIBSUF=$LIBSUF
3267 LIBNAME=$LIBNAME
3268 SLIBPREF=$SLIBPREF
3269 SLIBSUF=$SLIBSUF
3270 EXESUF=$EXESUF
3271 EXTRA_VERSION=$extra_version
3272 DEPFLAGS=$DEPFLAGS
3273 CCDEP=$CCDEP
3274 ASDEP=$ASDEP
3275 CC_DEPFLAGS=$CC_DEPFLAGS
3276 AS_DEPFLAGS=$AS_DEPFLAGS
3277 HOSTCC=$host_cc
3278 HOSTCFLAGS=$host_cflags
3279 HOSTEXESUF=$HOSTEXESUF
3280 HOSTLDFLAGS=$host_ldflags
3281 HOSTLIBS=$host_libs
3282 TARGET_EXEC=$target_exec
3283 TARGET_PATH=$target_path
3284 SDL_LIBS=$sdl_libs
3285 SDL_CFLAGS=$sdl_cflags
3286 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3287 EXTRALIBS=$extralibs
3288 INSTALL=install
3289 LIBTARGET=${LIBTARGET}
3290 SLIBNAME=${SLIBNAME}
3291 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3292 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3293 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3294 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3295 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3296 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3297 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3298 EOF
3299
3300 get_version(){
3301     name=$1
3302     file=$source_path/$2
3303     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3304     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3305     lcname=$(tolower $name)
3306     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3307     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3308 }
3309
3310 get_version LIBSWSCALE  libswscale/swscale.h
3311 get_version LIBPOSTPROC libpostproc/postprocess.h
3312 get_version LIBAVCODEC  libavcodec/version.h
3313 get_version LIBAVDEVICE libavdevice/avdevice.h
3314 get_version LIBAVFORMAT libavformat/version.h
3315 get_version LIBAVUTIL   libavutil/avutil.h
3316 get_version LIBAVFILTER libavfilter/avfilter.h
3317
3318 cat > $TMPH <<EOF
3319 /* Automatically generated by configure - do not modify! */
3320 #ifndef LIBAV_CONFIG_H
3321 #define LIBAV_CONFIG_H
3322 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3323 #define LIBAV_LICENSE "$(c_escape $license)"
3324 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3325 #define CC_TYPE "$cc_type"
3326 #define CC_VERSION $cc_version
3327 #define restrict $_restrict
3328 #define EXTERN_PREFIX "${extern_prefix}"
3329 #define EXTERN_ASM ${extern_prefix}
3330 #define SLIBSUF "$SLIBSUF"
3331 EOF
3332
3333 test -n "$malloc_prefix" &&
3334     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3335
3336 if enabled small || disabled optimizations; then
3337     echo "#undef  av_always_inline"  >> $TMPH
3338     if enabled small; then
3339         echo "#define av_always_inline inline"  >> $TMPH
3340     else
3341         echo "#define av_always_inline av_unused"  >> $TMPH
3342     fi
3343 fi
3344
3345 if enabled yasm; then
3346     append config_files $TMPASM
3347     printf '' >$TMPASM
3348 fi
3349
3350 print_config ARCH_   "$config_files" $ARCH_LIST
3351 print_config HAVE_   "$config_files" $HAVE_LIST
3352 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3353                                      $CONFIG_EXTRA      \
3354                                      $DECODER_LIST      \
3355                                      $ENCODER_LIST      \
3356                                      $HWACCEL_LIST      \
3357                                      $PARSER_LIST       \
3358                                      $BSF_LIST          \
3359                                      $DEMUXER_LIST      \
3360                                      $MUXER_LIST        \
3361                                      $FILTER_LIST       \
3362                                      $PROTOCOL_LIST     \
3363                                      $INDEV_LIST        \
3364                                      $OUTDEV_LIST       \
3365
3366 cat >>config.mak <<EOF
3367 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3368 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3369 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3370 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3371 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3372 EOF
3373
3374 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3375 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3376
3377 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3378 cp_if_changed $TMPH config.h
3379 touch .config
3380
3381 enabled yasm && cp_if_changed $TMPASM config.asm
3382
3383 cat > $TMPH <<EOF
3384 /* Generated by ffconf */
3385 #ifndef AVUTIL_AVCONFIG_H
3386 #define AVUTIL_AVCONFIG_H
3387 EOF
3388
3389 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3390
3391 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3392
3393 cp_if_changed $TMPH libavutil/avconfig.h
3394
3395 test -n "$WARNINGS" && printf "\n$WARNINGS"
3396
3397 # build pkg-config files
3398
3399 pkgconfig_generate(){
3400 name=$1
3401 shortname=${name#lib}${build_suffix}
3402 comment=$2
3403 version=$3
3404 libs=$4
3405 requires=$5
3406 enabled ${name#lib} || return 0
3407 cat <<EOF > $name/$name.pc
3408 prefix=$prefix
3409 exec_prefix=\${prefix}
3410 libdir=$libdir
3411 includedir=$incdir
3412
3413 Name: $name
3414 Description: $comment
3415 Version: $version
3416 Requires: $(enabled shared || echo $requires)
3417 Requires.private: $(enabled shared && echo $requires)
3418 Conflicts:
3419 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3420 Libs.private: $(enabled shared && echo $libs)
3421 Cflags: -I\${includedir}
3422 EOF
3423 cat <<EOF > $name/$name-uninstalled.pc
3424 prefix=
3425 exec_prefix=
3426 libdir=\${pcfiledir}
3427 includedir=${source_path}
3428
3429 Name: $name
3430 Description: $comment
3431 Version: $version
3432 Requires: $requires
3433 Conflicts:
3434 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3435 Cflags: -I\${includedir}
3436 EOF
3437 }
3438
3439 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3440 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3441 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3442 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3443 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3444 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3445 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"