libx264: handle closed GOP codec flag
[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     ldbrx
1073     libdc1394_1
1074     libdc1394_2
1075     llrint
1076     llrintf
1077     local_aligned_16
1078     local_aligned_8
1079     localtime_r
1080     log2
1081     log2f
1082     loongson
1083     lrint
1084     lrintf
1085     lzo1x_999_compress
1086     machine_ioctl_bt848_h
1087     machine_ioctl_meteor_h
1088     malloc_h
1089     MapViewOfFile
1090     memalign
1091     mkstemp
1092     mmap
1093     pld
1094     posix_memalign
1095     round
1096     roundf
1097     sdl
1098     sdl_video_size
1099     setmode
1100     sndio_h
1101     socklen_t
1102     soundcard_h
1103     poll_h
1104     setrlimit
1105     strerror_r
1106     strtok_r
1107     struct_addrinfo
1108     struct_ipv6_mreq
1109     struct_sockaddr_in6
1110     struct_sockaddr_sa_len
1111     struct_sockaddr_storage
1112     symver
1113     symver_gnu_asm
1114     symver_asm_label
1115     sys_mman_h
1116     sys_resource_h
1117     sys_select_h
1118     sys_soundcard_h
1119     sys_videoio_h
1120     ten_operands
1121     threads
1122     trunc
1123     truncf
1124     vfp_args
1125     VirtualAlloc
1126     winsock2_h
1127     xform_asm
1128     xmm_clobbers
1129     yasm
1130 "
1131
1132 # options emitted with CONFIG_ prefix but not available on command line
1133 CONFIG_EXTRA="
1134     avutil
1135     gplv3
1136     lgplv3
1137 "
1138
1139 CMDLINE_SELECT="
1140     $ARCH_EXT_LIST
1141     $CONFIG_LIST
1142     $THREADS_LIST
1143     asm
1144     cross_compile
1145     debug
1146     extra_warnings
1147     logging
1148     optimizations
1149     symver
1150     yasm
1151 "
1152
1153 PATHS_LIST='
1154     bindir
1155     datadir
1156     incdir
1157     libdir
1158     mandir
1159     prefix
1160     shlibdir
1161 '
1162
1163 CMDLINE_SET="
1164     $PATHS_LIST
1165     ar
1166     arch
1167     as
1168     build_suffix
1169     cc
1170     cpu
1171     cross_prefix
1172     dep_cc
1173     extra_version
1174     host_cc
1175     host_cflags
1176     host_ldflags
1177     host_libs
1178     host_os
1179     ld
1180     logfile
1181     malloc_prefix
1182     nm
1183     pkg_config
1184     samples
1185     source_path
1186     sysinclude
1187     sysroot
1188     target_exec
1189     target_os
1190     target_path
1191 "
1192
1193 CMDLINE_APPEND="
1194     extra_cflags
1195 "
1196
1197 # code dependency declarations
1198
1199 # architecture extensions
1200
1201 armv5te_deps="arm"
1202 armv6_deps="arm"
1203 armv6t2_deps="arm"
1204 armvfp_deps="arm"
1205 iwmmxt_deps="arm"
1206 neon_deps="arm"
1207
1208 mmi_deps="mips"
1209
1210 altivec_deps="ppc"
1211 ppc4xx_deps="ppc"
1212
1213 vis_deps="sparc"
1214
1215 x86_64_suggest="cmov fast_cmov"
1216 amd3dnow_deps="mmx"
1217 amd3dnowext_deps="amd3dnow"
1218 mmx_deps="x86"
1219 mmx2_deps="mmx"
1220 sse_deps="mmx"
1221 ssse3_deps="sse"
1222 avx_deps="ssse3"
1223
1224 aligned_stack_if_any="ppc x86"
1225 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1226 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1227 fast_unaligned_if_any="armv6 ppc x86"
1228
1229 need_memalign="altivec neon sse"
1230 inline_asm_deps="!tms470"
1231
1232 symver_if_any="symver_asm_label symver_gnu_asm"
1233
1234 # subsystems
1235 dct_select="rdft"
1236 mdct_select="fft"
1237 rdft_select="fft"
1238
1239 # decoders / encoders / hardware accelerators
1240 aac_decoder_select="mdct sinewin"
1241 aac_encoder_select="mdct sinewin"
1242 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1243 ac3_decoder_select="mdct ac3dsp ac3_parser"
1244 ac3_encoder_select="mdct ac3dsp"
1245 ac3_fixed_encoder_select="mdct ac3dsp"
1246 alac_encoder_select="lpc"
1247 amrnb_decoder_select="lsp"
1248 amrwb_decoder_select="lsp"
1249 atrac1_decoder_select="mdct sinewin"
1250 atrac3_decoder_select="mdct"
1251 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1252 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1253 cavs_decoder_select="golomb"
1254 cook_decoder_select="mdct sinewin"
1255 cscd_decoder_suggest="zlib"
1256 dca_decoder_select="mdct"
1257 dnxhd_encoder_select="aandct"
1258 dxa_decoder_select="zlib"
1259 eac3_decoder_select="ac3_decoder"
1260 eamad_decoder_select="aandct"
1261 eatgq_decoder_select="aandct"
1262 eatqi_decoder_select="aandct"
1263 ffv1_decoder_select="golomb"
1264 flac_decoder_select="golomb"
1265 flac_encoder_select="golomb lpc"
1266 flashsv_decoder_select="zlib"
1267 flashsv_encoder_select="zlib"
1268 flv_decoder_select="h263_decoder"
1269 flv_encoder_select="h263_encoder"
1270 fraps_decoder_select="huffman"
1271 h261_encoder_select="aandct"
1272 h263_decoder_select="h263_parser"
1273 h263_encoder_select="aandct"
1274 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1275 h263i_decoder_select="h263_decoder"
1276 h263p_encoder_select="h263_encoder"
1277 h264_decoder_select="golomb h264dsp h264pred"
1278 h264_dxva2_hwaccel_deps="dxva2api_h"
1279 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1280 h264_vaapi_hwaccel_select="vaapi"
1281 h264_vdpau_decoder_select="vdpau h264_decoder"
1282 imc_decoder_select="fft mdct sinewin"
1283 jpegls_decoder_select="golomb"
1284 jpegls_encoder_select="golomb"
1285 ljpeg_encoder_select="aandct"
1286 loco_decoder_select="golomb"
1287 mjpeg_encoder_select="aandct"
1288 mlp_decoder_select="mlp_parser"
1289 mp1float_decoder_select="dct"
1290 mp2float_decoder_select="dct"
1291 mp3adufloat_decoder_select="dct"
1292 mp3float_decoder_select="dct"
1293 mp3on4float_decoder_select="dct"
1294 mpeg1video_encoder_select="aandct"
1295 mpeg2video_encoder_select="aandct"
1296 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1297 mpeg4_encoder_select="h263_encoder"
1298 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1299 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1300 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1301 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1302 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1303 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1304 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1305 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1306 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1307 msmpeg4v1_decoder_select="h263_decoder"
1308 msmpeg4v1_encoder_select="h263_encoder"
1309 msmpeg4v2_decoder_select="h263_decoder"
1310 msmpeg4v2_encoder_select="h263_encoder"
1311 msmpeg4v3_decoder_select="h263_decoder"
1312 msmpeg4v3_encoder_select="h263_encoder"
1313 nellymoser_decoder_select="mdct sinewin"
1314 nellymoser_encoder_select="mdct sinewin"
1315 png_decoder_select="zlib"
1316 png_encoder_select="zlib"
1317 qcelp_decoder_select="lsp"
1318 qdm2_decoder_select="mdct rdft"
1319 ra_144_encoder_select="lpc"
1320 rv10_decoder_select="h263_decoder"
1321 rv10_encoder_select="h263_encoder"
1322 rv20_decoder_select="h263_decoder"
1323 rv20_encoder_select="h263_encoder"
1324 rv30_decoder_select="golomb h264pred"
1325 rv40_decoder_select="golomb h264pred"
1326 shorten_decoder_select="golomb"
1327 sipr_decoder_select="lsp"
1328 snow_decoder_select="dwt"
1329 snow_encoder_select="aandct dwt"
1330 svq1_encoder_select="aandct"
1331 svq3_decoder_select="golomb h264dsp h264pred"
1332 svq3_decoder_suggest="zlib"
1333 theora_decoder_select="vp3_decoder"
1334 tiff_decoder_suggest="zlib"
1335 tiff_encoder_suggest="zlib"
1336 truehd_decoder_select="mlp_decoder"
1337 tscc_decoder_select="zlib"
1338 twinvq_decoder_select="mdct lsp sinewin"
1339 vc1_decoder_select="h263_decoder"
1340 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1341 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1342 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1343 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1344 vorbis_decoder_select="mdct"
1345 vorbis_encoder_select="mdct"
1346 vp6_decoder_select="huffman"
1347 vp6a_decoder_select="vp6_decoder"
1348 vp6f_decoder_select="vp6_decoder"
1349 vp8_decoder_select="h264pred"
1350 wmapro_decoder_select="mdct sinewin"
1351 wmav1_decoder_select="mdct sinewin"
1352 wmav1_encoder_select="mdct sinewin"
1353 wmav2_decoder_select="mdct sinewin"
1354 wmav2_encoder_select="mdct sinewin"
1355 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1356 wmv1_decoder_select="h263_decoder"
1357 wmv1_encoder_select="h263_encoder"
1358 wmv2_decoder_select="h263_decoder"
1359 wmv2_encoder_select="h263_encoder"
1360 wmv3_decoder_select="vc1_decoder"
1361 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1362 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1363 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1364 zlib_decoder_select="zlib"
1365 zlib_encoder_select="zlib"
1366 zmbv_decoder_select="zlib"
1367 zmbv_encoder_select="zlib"
1368
1369 vaapi_deps="va_va_h"
1370 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1371
1372 # parsers
1373 h264_parser_select="golomb h264dsp h264pred"
1374
1375 # external libraries
1376 libdirac_decoder_deps="libdirac !libschroedinger"
1377 libdirac_encoder_deps="libdirac"
1378 libfaac_encoder_deps="libfaac"
1379 libgsm_decoder_deps="libgsm"
1380 libgsm_encoder_deps="libgsm"
1381 libgsm_ms_decoder_deps="libgsm"
1382 libgsm_ms_encoder_deps="libgsm"
1383 libmp3lame_encoder_deps="libmp3lame"
1384 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1385 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1386 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1387 libopenjpeg_decoder_deps="libopenjpeg"
1388 libschroedinger_decoder_deps="libschroedinger"
1389 libschroedinger_encoder_deps="libschroedinger"
1390 libspeex_decoder_deps="libspeex"
1391 libtheora_encoder_deps="libtheora"
1392 libvo_aacenc_encoder_deps="libvo_aacenc"
1393 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1394 libvorbis_encoder_deps="libvorbis"
1395 libvpx_decoder_deps="libvpx"
1396 libvpx_encoder_deps="libvpx"
1397 libx264_encoder_deps="libx264"
1398 libxavs_encoder_deps="libxavs"
1399 libxvid_encoder_deps="libxvid"
1400
1401 # demuxers / muxers
1402 ac3_demuxer_select="ac3_parser"
1403 asf_stream_muxer_select="asf_muxer"
1404 avisynth_demuxer_deps="avisynth"
1405 dirac_demuxer_select="dirac_parser"
1406 eac3_demuxer_select="ac3_parser"
1407 flac_demuxer_select="flac_parser"
1408 ipod_muxer_select="mov_muxer"
1409 libnut_demuxer_deps="libnut"
1410 libnut_muxer_deps="libnut"
1411 matroska_audio_muxer_select="matroska_muxer"
1412 matroska_demuxer_suggest="zlib bzlib"
1413 mov_demuxer_suggest="zlib"
1414 mp3_demuxer_select="mpegaudio_parser"
1415 mp4_muxer_select="mov_muxer"
1416 mpegtsraw_demuxer_select="mpegts_demuxer"
1417 mxf_d10_muxer_select="mxf_muxer"
1418 ogg_demuxer_select="golomb"
1419 psp_muxer_select="mov_muxer"
1420 rtp_demuxer_select="sdp_demuxer"
1421 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1422 rtsp_demuxer_select="http_protocol rtpdec"
1423 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1424 sap_demuxer_select="sdp_demuxer"
1425 sap_muxer_select="rtp_muxer rtp_protocol"
1426 sdp_demuxer_select="rtpdec"
1427 spdif_muxer_select="aac_parser"
1428 tg2_muxer_select="mov_muxer"
1429 tgp_muxer_select="mov_muxer"
1430 w64_demuxer_deps="wav_demuxer"
1431
1432 # indevs / outdevs
1433 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1434 alsa_outdev_deps="alsa_asoundlib_h"
1435 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1436 dv1394_indev_deps="dv1394 dv_demuxer"
1437 fbdev_indev_deps="linux_fb_h"
1438 jack_indev_deps="jack_jack_h"
1439 libdc1394_indev_deps="libdc1394"
1440 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1441 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1442 sndio_indev_deps="sndio_h"
1443 sndio_outdev_deps="sndio_h"
1444 v4l_indev_deps="linux_videodev_h"
1445 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1446 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1447 vfwcap_indev_extralibs="-lavicap32"
1448 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1449 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1450
1451 # protocols
1452 gopher_protocol_deps="network"
1453 http_protocol_deps="network"
1454 http_protocol_select="tcp_protocol"
1455 mmsh_protocol_select="http_protocol"
1456 mmst_protocol_deps="network"
1457 rtmp_protocol_select="tcp_protocol"
1458 rtp_protocol_select="udp_protocol"
1459 tcp_protocol_deps="network"
1460 udp_protocol_deps="network"
1461
1462 # filters
1463 blackframe_filter_deps="gpl"
1464 cropdetect_filter_deps="gpl"
1465 drawtext_filter_deps="libfreetype"
1466 frei0r_filter_deps="frei0r dlopen strtok_r"
1467 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1468 hqdn3d_filter_deps="gpl"
1469 ocv_filter_deps="libopencv"
1470 scale_filter_deps="swscale"
1471 yadif_filter_deps="gpl"
1472
1473 # libraries
1474 avdevice_deps="avcodec avformat"
1475 avformat_deps="avcodec"
1476 postproc_deps="gpl"
1477
1478 # programs
1479 ffmpeg_deps="avcodec avformat swscale"
1480 ffmpeg_select="buffer_filter"
1481 ffplay_deps="avcodec avformat swscale sdl"
1482 ffplay_select="rdft"
1483 ffprobe_deps="avcodec avformat"
1484 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1485 ffserver_extralibs='$ldl'
1486
1487 doc_deps="texi2html"
1488
1489 # tests
1490
1491 test_deps(){
1492     suf1=$1
1493     suf2=$2
1494     shift 2
1495     for v; do
1496         dep=${v%=*}
1497         tests=${v#*=}
1498         for name in ${tests}; do
1499             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1500         done
1501     done
1502 }
1503
1504 set_ne_test_deps(){
1505     eval ${1}_be_test_deps="bigendian"
1506     eval ${1}_le_test_deps="!bigendian"
1507 }
1508
1509 test_deps _encoder _decoder                                             \
1510     adpcm_g726=g726                                                     \
1511     adpcm_ima_qt                                                        \
1512     adpcm_ima_wav                                                       \
1513     adpcm_ms                                                            \
1514     adpcm_swf                                                           \
1515     adpcm_yamaha=adpcm_yam                                              \
1516     alac                                                                \
1517     asv1                                                                \
1518     asv2                                                                \
1519     bmp                                                                 \
1520     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1521     dvvideo="dv dv50"                                                   \
1522     ffv1                                                                \
1523     flac                                                                \
1524     flashsv                                                             \
1525     flv                                                                 \
1526     gif                                                                 \
1527     h261                                                                \
1528     h263="h263 h263p"                                                   \
1529     huffyuv                                                             \
1530     jpegls                                                              \
1531     mjpeg="jpg mjpeg ljpeg"                                             \
1532     mp2                                                                 \
1533     mpeg1video="mpeg mpeg1b"                                            \
1534     mpeg2video="mpeg2 mpeg2thread"                                      \
1535     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1536     msmpeg4v3=msmpeg4                                                   \
1537     msmpeg4v2                                                           \
1538     pbm=pbmpipe                                                         \
1539     pcx                                                                 \
1540     pgm="pgm pgmpipe"                                                   \
1541     png                                                                 \
1542     ppm="ppm ppmpipe"                                                   \
1543     rawvideo="rgb yuv"                                                  \
1544     roq                                                                 \
1545     rv10                                                                \
1546     rv20                                                                \
1547     sgi                                                                 \
1548     snow="snow snowll"                                                  \
1549     svq1                                                                \
1550     targa=tga                                                           \
1551     tiff                                                                \
1552     wmav1                                                               \
1553     wmav2                                                               \
1554     wmv1                                                                \
1555     wmv2                                                                \
1556
1557 test_deps _muxer _demuxer                                               \
1558     aiff                                                                \
1559     pcm_alaw=alaw                                                       \
1560     asf                                                                 \
1561     au                                                                  \
1562     avi                                                                 \
1563     dv=dv_fmt                                                           \
1564     ffm                                                                 \
1565     flv=flv_fmt                                                         \
1566     gxf                                                                 \
1567     matroska=mkv                                                        \
1568     mmf                                                                 \
1569     mov                                                                 \
1570     pcm_mulaw=mulaw                                                     \
1571     mxf                                                                 \
1572     nut                                                                 \
1573     ogg                                                                 \
1574     rawvideo=pixfmt                                                     \
1575     rm                                                                  \
1576     swf                                                                 \
1577     mpegts=ts                                                           \
1578     voc                                                                 \
1579     wav                                                                 \
1580     yuv4mpegpipe=yuv4mpeg                                               \
1581
1582 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1583 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1584
1585 set_ne_test_deps pixdesc
1586 set_ne_test_deps pixfmts_copy
1587 set_ne_test_deps pixfmts_crop
1588 set_ne_test_deps pixfmts_hflip
1589 set_ne_test_deps pixfmts_null
1590 set_ne_test_deps pixfmts_pad
1591 set_ne_test_deps pixfmts_scale
1592 set_ne_test_deps pixfmts_vflip
1593
1594 # default parameters
1595
1596 logfile="config.log"
1597
1598 # installation paths
1599 prefix_default="/usr/local"
1600 bindir_default='${prefix}/bin'
1601 datadir_default='${prefix}/share/ffmpeg'
1602 incdir_default='${prefix}/include'
1603 libdir_default='${prefix}/lib'
1604 mandir_default='${prefix}/share/man'
1605 shlibdir_default="$libdir_default"
1606
1607 # toolchain
1608 ar_default="ar"
1609 cc_default="gcc"
1610 cc_version=\"unknown\"
1611 host_cc_default="gcc"
1612 ln_s="ln -sf"
1613 nm_default="nm"
1614 objformat="elf"
1615 pkg_config_default=pkg-config
1616 ranlib="ranlib"
1617 yasmexe="yasm"
1618 nogas=":"
1619
1620 nm_opts='-g'
1621
1622 # machine
1623 arch_default=$(uname -m)
1624 cpu="generic"
1625
1626 # OS
1627 target_os_default=$(tolower $(uname -s))
1628 host_os=$target_os_default
1629
1630 # configurable options
1631 enable avcodec
1632 enable avdevice
1633 enable avfilter
1634 enable avformat
1635 enable avutil
1636 enable asm
1637 enable debug
1638 enable doc
1639 enable fastdiv
1640 enable ffmpeg
1641 enable ffplay
1642 enable ffprobe
1643 enable ffserver
1644 enable network
1645 enable optimizations
1646 enable postproc
1647 enable protocols
1648 enable static
1649 enable swscale
1650 enable swscale_alpha
1651
1652 # build settings
1653 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1654 FFSERVERLDFLAGS=-Wl,-E
1655 LIBPREF="lib"
1656 LIBSUF=".a"
1657 FULLNAME='$(NAME)$(BUILDSUF)'
1658 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1659 SLIBPREF="lib"
1660 SLIBSUF=".so"
1661 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1662 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1663 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1664 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1665
1666 CC_O='-o $@'
1667
1668 host_cflags='-D_ISOC99_SOURCE -O3 -g -Wall'
1669 host_libs='-lm'
1670
1671 target_path='$(CURDIR)'
1672
1673 # since the object filename is not given with the -MM flag, the compiler
1674 # is only able to print the basename, and we must add the path ourselves
1675 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1676 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1677
1678 # find source path
1679 source_path="$(dirname "$0")"
1680 enable source_path_used
1681 if test -f configure; then
1682     source_path="$(pwd)"
1683     disable source_path_used
1684 else
1685     source_path="$(cd "$source_path"; pwd)"
1686     echo "$source_path" | grep -q '[[:blank:]]' &&
1687         die "Out of tree builds are impossible with whitespace in source path."
1688     test -e "$source_path/config.h" &&
1689         die "Out of tree builds are impossible with config.h in source dir."
1690 fi
1691
1692 for v in "$@"; do
1693     r=${v#*=}
1694     l=${v%"$r"}
1695     r=$(sh_quote "$r")
1696     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1697 done
1698
1699 find_things(){
1700     thing=$1
1701     pattern=$2
1702     file=$source_path/$3
1703     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1704 }
1705
1706 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1707 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1708 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1709 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1710 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1711 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1712 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1713 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1714 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1715 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1716 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1717
1718 find_tests(){
1719     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1720 }
1721
1722 ACODEC_TESTS=$(find_tests acodec)
1723 VCODEC_TESTS=$(find_tests vsynth1)
1724 LAVF_TESTS=$(find_tests lavf)
1725 LAVFI_TESTS=$(find_tests lavfi)
1726 SEEK_TESTS=$(find_tests seek seek_)
1727
1728 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1729
1730 for n in $COMPONENT_LIST; do
1731     v=$(toupper ${n%s})_LIST
1732     eval enable \$$v
1733     eval ${n}_if_any="\$$v"
1734 done
1735
1736 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1737
1738 die_unknown(){
1739     echo "Unknown option \"$1\"."
1740     echo "See $0 --help for available options."
1741     exit 1
1742 }
1743
1744 show_list() {
1745     suffix=_$1
1746     shift
1747     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1748     exit 0
1749 }
1750
1751 for opt do
1752     optval="${opt#*=}"
1753     case "$opt" in
1754     --extra-ldflags=*) add_ldflags $optval
1755     ;;
1756     --extra-libs=*) add_extralibs $optval
1757     ;;
1758     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1759     ;;
1760     --enable-debug=*) debuglevel="$optval"
1761     ;;
1762     --disable-everything)
1763     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1764     ;;
1765     --enable-*=*|--disable-*=*)
1766     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1767     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1768     eval list=\$$(toupper $thing)_LIST
1769     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1770     $action $(filter "$name" $list)
1771     ;;
1772     --enable-?*|--disable-?*)
1773     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1774     if is_in $option $COMPONENT_LIST; then
1775         test $action = disable && action=unset
1776         eval $action \$$(toupper ${option%s})_LIST
1777     elif is_in $option $CMDLINE_SELECT; then
1778         $action $option
1779     else
1780         die_unknown $opt
1781     fi
1782     ;;
1783     --list-*)
1784         NAME="${opt#--list-}"
1785         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1786         NAME=${NAME%s}
1787         eval show_list $NAME \$$(toupper $NAME)_LIST
1788     ;;
1789     --help|-h) show_help
1790     ;;
1791     *)
1792     optname="${opt%%=*}"
1793     optname="${optname#--}"
1794     optname=$(echo "$optname" | sed 's/-/_/g')
1795     if is_in $optname $CMDLINE_SET; then
1796         eval $optname='$optval'
1797     elif is_in $optname $CMDLINE_APPEND; then
1798         append $optname "$optval"
1799     else
1800          die_unknown $opt
1801     fi
1802     ;;
1803     esac
1804 done
1805
1806 disabled logging && logfile=/dev/null
1807
1808 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1809 set >> $logfile
1810
1811 test -n "$cross_prefix" && enable cross_compile
1812
1813 if enabled cross_compile; then
1814     test -n "$arch" && test -n "$target_os" ||
1815         die "Must specify target arch and OS when cross-compiling"
1816 fi
1817
1818 set_default arch target_os
1819
1820 ar_default="${cross_prefix}${ar_default}"
1821 cc_default="${cross_prefix}${cc_default}"
1822 nm_default="${cross_prefix}${nm_default}"
1823 pkg_config_default="${cross_prefix}${pkg_config_default}"
1824 ranlib="${cross_prefix}${ranlib}"
1825
1826 sysinclude_default="${sysroot}/usr/include"
1827
1828 set_default cc nm pkg_config sysinclude
1829 enabled cross_compile || host_cc_default=$cc
1830 set_default host_cc
1831
1832 if ! $pkg_config --version >/dev/null 2>&1; then
1833     warn "$pkg_config not found, library detection may fail."
1834     pkg_config=false
1835 fi
1836
1837 exesuf() {
1838     case $1 in
1839         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1840     esac
1841 }
1842
1843 EXESUF=$(exesuf $target_os)
1844 HOSTEXESUF=$(exesuf $host_os)
1845
1846 # set temporary file name
1847 : ${TMPDIR:=$TEMPDIR}
1848 : ${TMPDIR:=$TMP}
1849 : ${TMPDIR:=/tmp}
1850
1851 if ! check_cmd mktemp -u XXXXXX; then
1852     # simple replacement for missing mktemp
1853     # NOT SAFE FOR GENERAL USE
1854     mktemp(){
1855         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1856     }
1857 fi
1858
1859 tmpfile(){
1860     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1861         (set -C; exec > $tmp) 2>/dev/null ||
1862         die "Unable to create temporary file in $TMPDIR."
1863     append TMPFILES $tmp
1864     eval $1=$tmp
1865 }
1866
1867 trap 'rm -f -- $TMPFILES' EXIT
1868
1869 tmpfile TMPC  .c
1870 tmpfile TMPE  $EXESUF
1871 tmpfile TMPH  .h
1872 tmpfile TMPO  .o
1873 tmpfile TMPS  .S
1874 tmpfile TMPV  .ver
1875 tmpfile TMPSH .sh
1876 tmpfile TMPASM .asm
1877
1878 unset -f mktemp
1879
1880 chmod +x $TMPE
1881
1882 # make sure we can execute files in $TMPDIR
1883 cat > $TMPSH 2>> $logfile <<EOF
1884 #! /bin/sh
1885 EOF
1886 chmod +x $TMPSH >> $logfile 2>&1
1887 if ! $TMPSH >> $logfile 2>&1; then
1888     cat <<EOF
1889 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1890 variable to another directory and make sure that it is not mounted noexec.
1891 EOF
1892     die "Sanity test failed."
1893 fi
1894
1895 filter_cflags=echo
1896 filter_cppflags=echo
1897 filter_asflags=echo
1898
1899 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1900     cc_type=llvm_gcc
1901     cc_version=__VERSION__
1902     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1903     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1904     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1905     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1906     speed_cflags='-O3'
1907     size_cflags='-Os'
1908 elif $cc -v 2>&1 | grep -qi ^gcc; then
1909     cc_type=gcc
1910     cc_version=__VERSION__
1911     gcc_version=$($cc --version | head -n1)
1912     gcc_basever=$($cc -dumpversion)
1913     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1914     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1915     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1916     if ! $cc -dumpversion | grep -q '^2\.'; then
1917         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1918         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1919     fi
1920     speed_cflags='-O3'
1921     size_cflags='-Os'
1922 elif $cc --version 2>/dev/null | grep -q Intel; then
1923     cc_type=icc
1924     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1925     cc_ident=$($cc --version | head -n1)
1926     icc_version=$($cc -dumpversion)
1927     CC_DEPFLAGS='-MMD'
1928     AS_DEPFLAGS='-MMD'
1929     speed_cflags='-O3'
1930     size_cflags='-Os'
1931     noopt_cflags='-O1'
1932 elif $cc -v 2>&1 | grep -q xlc; then
1933     cc_type=xlc
1934     cc_version="AV_STRINGIFY(__IBMC__)"
1935     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1936     speed_cflags='-O5'
1937     size_cflags='-O5 -qcompact'
1938 elif $cc -V 2>/dev/null | grep -q Compaq; then
1939     cc_type=ccc
1940     cc_version="AV_STRINGIFY(__DECC_VER)"
1941     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1942     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1943     debuglevel=3
1944     add_ldflags -Wl,-z,now # calls to libots crash without this
1945     speed_cflags='-fast'
1946     size_cflags='-O1'
1947 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1948     test -d "$sysroot" || die "No valid sysroot specified."
1949     cc_type=armcc
1950     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1951     cc_ident=$($cc --vsn | head -n1)
1952     armcc_conf="$PWD/armcc.conf"
1953     $cc --arm_linux_configure                 \
1954         --arm_linux_config_file="$armcc_conf" \
1955         --configure_sysroot="$sysroot"        \
1956         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1957         die "Error creating armcc configuration file."
1958     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1959     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1960     as_default="${cross_prefix}gcc"
1961     CC_DEPFLAGS='-MMD'
1962     AS_DEPFLAGS='-MMD'
1963     speed_cflags='-O3'
1964     size_cflags='-Os'
1965     filter_asflags="filter_out -W${armcc_opt}*"
1966 elif $cc -version 2>/dev/null | grep -q TMS470; then
1967     cc_type=tms470
1968     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1969     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1970     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1971     CC_O='-fr=$(@D)'
1972     as_default="${cross_prefix}gcc"
1973     ld_default="${cross_prefix}gcc"
1974     TMPO=$(basename $TMPC .c).o
1975     append TMPFILES $TMPO
1976     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1977     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1978     AS_DEPFLAGS='-MMD'
1979     speed_cflags='-O3 -mf=5'
1980     size_cflags='-O3 -mf=2'
1981     filter_cflags=tms470_flags
1982     tms470_flags(){
1983         for flag; do
1984             case $flag in
1985                 -march=*|-mcpu=*)
1986                     case "${flag#*=}" in
1987                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1988                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1989                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1990                         armv6*|arm11*)          echo -mv=6   ;;
1991                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1992                                                 echo -mv=5e  ;;
1993                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1994                     esac
1995                     ;;
1996                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1997                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1998                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1999                 -msoft-float)   echo --float_support=vfplib       ;;
2000                 -O[0-3]|-mf=*)  echo $flag                        ;;
2001                 -g)             echo -g -mn                       ;;
2002                 -pds=*)         echo $flag                        ;;
2003             esac
2004         done
2005     }
2006 elif $cc -v 2>&1 | grep -q clang; then
2007     cc_type=clang
2008     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2009         cc_version=__clang_version__ || cc_version=__VERSION__
2010     cc_ident=$($cc --version | head -n1)
2011     CC_DEPFLAGS='-MMD'
2012     AS_DEPFLAGS='-MMD'
2013     speed_cflags='-O3'
2014     size_cflags='-Os'
2015 elif $cc -V 2>&1 | grep -q Sun; then
2016     cc_type=suncc
2017     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2018     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2019     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2020     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2021     speed_cflags='-O5'
2022     size_cflags='-O5 -xspace'
2023     filter_cflags=suncc_flags
2024     suncc_flags(){
2025         for flag; do
2026             case $flag in
2027                 -march=*|-mcpu=*)
2028                     case "${flag#*=}" in
2029                         native)                   echo -xtarget=native       ;;
2030                         v9|niagara)               echo -xarch=sparc          ;;
2031                         ultrasparc)               echo -xarch=sparcvis       ;;
2032                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2033                         i586|pentium)             echo -xchip=pentium        ;;
2034                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2035                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2036                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2037                         pentium4*)          echo -xtarget=pentium4           ;;
2038                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2039                         *-sse3)             echo -xarch=sse3                 ;;
2040                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2041                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2042                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2043                         k8|opteron|athlon64|athlon-fx)
2044                                                   echo -xarch=sse2a          ;;
2045                         athlon*)                  echo -xarch=pentium_proa   ;;
2046                     esac
2047                     ;;
2048                 -std=c99)             echo -xc99              ;;
2049                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2050                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2051                 -W*,*)                echo $flag              ;;
2052                 -f*-*|-W*)                                    ;;
2053                 *)                    echo $flag              ;;
2054             esac
2055         done
2056     }
2057 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2058     cc_type=pathscale
2059     cc_version=__PATHSCALE__
2060     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2061     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2062     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2063     speed_cflags='-O2'
2064     size_cflags='-Os'
2065 elif $cc -v 2>&1 | grep -q Open64; then
2066     cc_type=open64
2067     cc_version=__OPEN64__
2068     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2069     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2070     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071     speed_cflags='-O2'
2072     size_cflags='-Os'
2073 fi
2074
2075 test -n "$cc_type" && enable $cc_type ||
2076     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2077
2078 : ${as_default:=$cc}
2079 : ${dep_cc_default:=$cc}
2080 : ${ld_default:=$cc}
2081 set_default ar as dep_cc ld
2082
2083 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2084 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2085
2086 add_cflags $extra_cflags
2087 add_asflags $extra_cflags
2088
2089 if test -n "$sysroot"; then
2090     case "$cc_type" in
2091         gcc|llvm_gcc|clang)
2092             add_cppflags --sysroot="$sysroot"
2093             add_ldflags --sysroot="$sysroot"
2094         ;;
2095         tms470)
2096             add_cppflags -I"$sysinclude"
2097             add_ldflags  --sysroot="$sysroot"
2098         ;;
2099     esac
2100 fi
2101
2102 if test "$cpu" = host; then
2103     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2104
2105     case "$cc_type" in
2106         gcc|llvm_gcc)
2107             check_native(){
2108                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2109                 sed -n "/$1=/{
2110                             s/.*$1=\\([^ ]*\\).*/\\1/
2111                             p
2112                             q
2113                         }" $TMPE
2114             }
2115             cpu=$(check_native -march || check_native -mcpu)
2116         ;;
2117     esac
2118
2119     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2120 fi
2121
2122 # Deal with common $arch aliases
2123 case "$arch" in
2124     arm*)
2125         arch="arm"
2126     ;;
2127     mips|mipsel|IP*)
2128         arch="mips"
2129     ;;
2130     mips64*)
2131         arch="mips"
2132         subarch="mips64"
2133     ;;
2134     parisc|hppa)
2135         arch="parisc"
2136     ;;
2137     parisc64|hppa64)
2138         arch="parisc"
2139         subarch="parisc64"
2140     ;;
2141     "Power Macintosh"|ppc|powerpc)
2142         arch="ppc"
2143     ;;
2144     ppc64|powerpc64)
2145         arch="ppc"
2146         subarch="ppc64"
2147     ;;
2148     s390|s390x)
2149         arch="s390"
2150     ;;
2151     sh4|sh)
2152         arch="sh4"
2153     ;;
2154     sun4u|sparc64)
2155         arch="sparc"
2156         subarch="sparc64"
2157     ;;
2158     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2159         arch="x86"
2160     ;;
2161 esac
2162
2163 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2164 enable $arch
2165
2166 # Add processor-specific flags
2167 if test "$cpu" = generic; then
2168     : do nothing
2169 elif enabled ppc; then
2170
2171     case $(tolower $cpu) in
2172         601|ppc601|powerpc601)
2173             cpuflags="-mcpu=601"
2174             disable altivec
2175         ;;
2176         603*|ppc603*|powerpc603*)
2177             cpuflags="-mcpu=603"
2178             disable altivec
2179         ;;
2180         604*|ppc604*|powerpc604*)
2181             cpuflags="-mcpu=604"
2182             disable altivec
2183         ;;
2184         g3|75*|ppc75*|powerpc75*)
2185             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2186             disable altivec
2187         ;;
2188         g4|745*|ppc745*|powerpc745*)
2189             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2190         ;;
2191         74*|ppc74*|powerpc74*)
2192             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2193         ;;
2194         g5|970|ppc970|powerpc970|power4*)
2195             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2196         ;;
2197         cell)
2198             cpuflags="-mcpu=cell"
2199             enable ldbrx
2200         ;;
2201         e500v2)
2202             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2203             disable altivec
2204         ;;
2205         e500)
2206             cpuflags="-mcpu=8540 -mhard-float"
2207             disable altivec
2208         ;;
2209     esac
2210
2211 elif enabled x86; then
2212
2213     case $cpu in
2214         i[345]86|pentium)
2215             cpuflags="-march=$cpu"
2216             disable mmx
2217         ;;
2218         # targets that do NOT support conditional mov (cmov)
2219         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2220             cpuflags="-march=$cpu"
2221             disable cmov
2222         ;;
2223         # targets that do support conditional mov (cmov)
2224         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2225             cpuflags="-march=$cpu"
2226             enable cmov
2227             enable fast_cmov
2228         ;;
2229         # targets that do support conditional mov but on which it's slow
2230         pentium4|pentium4m|prescott|nocona)
2231             cpuflags="-march=$cpu"
2232             enable cmov
2233             disable fast_cmov
2234         ;;
2235     esac
2236
2237 elif enabled sparc; then
2238
2239     case $cpu in
2240         niagara)
2241             cpuflags="-mcpu=$cpu"
2242             disable vis
2243         ;;
2244         sparc64)
2245             cpuflags="-mcpu=v9"
2246         ;;
2247     esac
2248
2249 elif enabled arm; then
2250
2251     case $cpu in
2252         armv*)
2253             cpuflags="-march=$cpu"
2254             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2255         ;;
2256         *)
2257             cpuflags="-mcpu=$cpu"
2258             case $cpu in
2259                 cortex-a*)                               subarch=armv7a  ;;
2260                 cortex-r*)                               subarch=armv7r  ;;
2261                 cortex-m*)                               subarch=armv7m  ;;
2262                 arm11*)                                  subarch=armv6   ;;
2263                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2264                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2265             esac
2266         ;;
2267     esac
2268
2269 elif enabled alpha; then
2270
2271     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2272
2273 elif enabled bfin; then
2274
2275     cpuflags="-mcpu=$cpu"
2276
2277 elif enabled mips; then
2278
2279     cpuflags="-march=$cpu"
2280
2281 elif enabled avr32; then
2282
2283     case $cpu in
2284         ap7[02]0[0-2])
2285             subarch="avr32_ap"
2286             cpuflags="-mpart=$cpu"
2287         ;;
2288         ap)
2289             subarch="avr32_ap"
2290             cpuflags="-march=$cpu"
2291         ;;
2292         uc3[ab]*)
2293             subarch="avr32_uc"
2294             cpuflags="-mcpu=$cpu"
2295         ;;
2296         uc)
2297             subarch="avr32_uc"
2298             cpuflags="-march=$cpu"
2299         ;;
2300     esac
2301
2302 fi
2303
2304 add_cflags $cpuflags
2305 add_asflags $cpuflags
2306
2307 # compiler sanity check
2308 check_exec <<EOF
2309 int main(void){ return 0; }
2310 EOF
2311 if test "$?" != 0; then
2312     echo "$cc is unable to create an executable file."
2313     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2314         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2315         echo "Only do this if you know what cross compiling means."
2316     fi
2317     die "C compiler test failed."
2318 fi
2319
2320 add_cppflags -D_ISOC99_SOURCE
2321 check_cflags -std=c99
2322 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2323 #include <stdlib.h>
2324 EOF
2325 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2326 #include <stdlib.h>
2327 EOF
2328
2329 check_host_cflags -std=c99
2330
2331 case "$arch" in
2332     alpha|ia64|mips|parisc|sparc)
2333         spic=$shared
2334     ;;
2335     x86)
2336         subarch="x86_32"
2337         check_cc <<EOF && subarch="x86_64"
2338         int test[(int)sizeof(char*) - 7];
2339 EOF
2340         if test "$subarch" = "x86_64"; then
2341             spic=$shared
2342         fi
2343     ;;
2344 esac
2345
2346 enable $subarch
2347 enabled spic && enable pic
2348
2349 # OS specific
2350 case $target_os in
2351     haiku)
2352         prefix_default="/boot/common"
2353         network_extralibs="-lnetwork"
2354         host_libs=
2355         ;;
2356     sunos)
2357         FFSERVERLDFLAGS=""
2358         SHFLAGS='-shared -Wl,-h,$$(@F)'
2359         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2360         network_extralibs="-lsocket -lnsl"
2361         add_cppflags -D__EXTENSIONS__
2362         nm_opts='-P -g'
2363         ;;
2364     netbsd)
2365         disable symver
2366         oss_indev_extralibs="-lossaudio"
2367         oss_outdev_extralibs="-lossaudio"
2368         ;;
2369     openbsd)
2370         enable malloc_aligned
2371         # On OpenBSD 4.5. the compiler does not use PIC unless
2372         # explicitly using -fPIC. Libav builds fine without PIC,
2373         # however the generated executable will not do anything
2374         # (simply quits with exit-code 1, no crash, no output).
2375         # Thus explicitly enable PIC here.
2376         enable pic
2377         disable symver
2378         SHFLAGS='-shared'
2379         oss_indev_extralibs="-lossaudio"
2380         oss_outdev_extralibs="-lossaudio"
2381         ;;
2382     dragonfly)
2383         enable malloc_aligned
2384         disable symver
2385         ;;
2386     freebsd)
2387         enable malloc_aligned
2388         ;;
2389     bsd/os)
2390         add_extralibs -lpoll -lgnugetopt
2391         ;;
2392     darwin)
2393         enable malloc_aligned
2394         gas="gas-preprocessor.pl $cc"
2395         enabled ppc && add_asflags -force_cpusubtype_ALL
2396         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2397         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2398         add_ldflags -Wl,-dynamic,-search_paths_first
2399         SLIBSUF=".dylib"
2400         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2401         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2402         FFSERVERLDFLAGS=-Wl,-bind_at_load
2403         objformat="macho"
2404         enabled x86_64 && objformat="macho64"
2405         enabled_any pic shared ||
2406             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2407         ;;
2408     mingw32*)
2409         if test $target_os = "mingw32ce"; then
2410             disable network
2411         else
2412             target_os=mingw32
2413         fi
2414         LIBTARGET=i386
2415         if enabled x86_64; then
2416             enable malloc_aligned
2417             LIBTARGET="i386:x86-64"
2418         elif enabled arm; then
2419             LIBTARGET=arm-wince
2420         fi
2421         shlibdir_default="$bindir_default"
2422         SLIBPREF=""
2423         SLIBSUF=".dll"
2424         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2425         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2426         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2427         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2428             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2429             install -d "$(LIBDIR)"; \
2430             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2431         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2432         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'
2433         objformat="win32"
2434         dlltool="${cross_prefix}dlltool"
2435         enable dos_paths
2436         check_cflags -fno-common
2437         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2438                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2439                 die "ERROR: MinGW runtime version must be >= 3.15."
2440         add_cppflags -U__STRICT_ANSI__
2441         ;;
2442     cygwin*)
2443         target_os=cygwin
2444         shlibdir_default="$bindir_default"
2445         SLIBPREF="cyg"
2446         SLIBSUF=".dll"
2447         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2448         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2449         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2450         objformat="win32"
2451         enable dos_paths
2452         check_cflags -fno-common
2453         ;;
2454     *-dos|freedos|opendos)
2455         network_extralibs="-lsocket"
2456         objformat="coff"
2457         enable dos_paths
2458         ;;
2459     linux)
2460         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2461         enable dv1394
2462         ;;
2463     irix*)
2464         target_os=irix
2465         ranlib="echo ignoring ranlib"
2466         ;;
2467     os/2*)
2468         ln_s="cp -f"
2469         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2470         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2471         FFSERVERLDFLAGS=""
2472         LIBSUF="_s.a"
2473         SLIBPREF=""
2474         SLIBSUF=".dll"
2475         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2476         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2477         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2478           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2479           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2480           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2481           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2482           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2483         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2484           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2485         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2486         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2487         enable dos_paths
2488         ;;
2489     gnu/kfreebsd)
2490         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
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 io.h setmode
2796 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2797 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2798 check_func_headers windows.h GetProcessTimes
2799 check_func_headers windows.h MapViewOfFile
2800 check_func_headers windows.h VirtualAlloc
2801
2802 check_header dlfcn.h
2803 check_header dxva2api.h
2804 check_header malloc.h
2805 check_header poll.h
2806 check_header sys/mman.h
2807 check_header sys/resource.h
2808 check_header sys/select.h
2809 check_header vdpau/vdpau.h
2810 check_header vdpau/vdpau_x11.h
2811 check_header X11/extensions/XvMClib.h
2812
2813 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2814
2815 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2816      enabled_any $need_memalign ; then
2817     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2818 fi
2819
2820 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2821 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2822
2823 # check for some common methods of building with pthread support
2824 # do this before the optional library checks as some of them require pthreads
2825 if ! disabled pthreads && ! enabled w32threads; then
2826     enable pthreads
2827     if check_func pthread_create; then
2828         :
2829     elif check_func pthread_create -pthread; then
2830         add_cflags -pthread
2831         add_extralibs -pthread
2832     elif check_func pthread_create -pthreads; then
2833         add_cflags -pthreads
2834         add_extralibs -pthreads
2835     elif check_func pthread_create -lpthreadGC2; then
2836         add_extralibs -lpthreadGC2
2837     elif ! check_lib pthread.h pthread_create -lpthread; then
2838         disable pthreads
2839     fi
2840 fi
2841
2842 for thread in $THREADS_LIST; do
2843     if enabled $thread; then
2844         test -n "$thread_type" &&
2845             die "ERROR: Only one thread type must be selected." ||
2846             thread_type="$thread"
2847     fi
2848 done
2849
2850 check_lib math.h sin -lm && LIBM="-lm"
2851 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2852
2853 check_mathfunc exp2
2854 check_mathfunc exp2f
2855 check_mathfunc llrint
2856 check_mathfunc llrintf
2857 check_mathfunc log2
2858 check_mathfunc log2f
2859 check_mathfunc lrint
2860 check_mathfunc lrintf
2861 check_mathfunc round
2862 check_mathfunc roundf
2863 check_mathfunc trunc
2864 check_mathfunc truncf
2865
2866 # these are off by default, so fail if requested and not available
2867 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2868 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2869 enabled libdirac   && require_pkg_config dirac                          \
2870     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2871     "dirac_decoder_init dirac_encoder_init"
2872 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2873 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2874 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2875 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2876 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2877 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2878 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2879 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2880 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2881 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2882 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2883 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2884 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2885 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2886 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2887 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2888 enabled libvpx     && {
2889     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2890                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2891     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2892                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2893 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2894                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2895                         die "ERROR: libx264 version must be >= 0.115."; }
2896 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2897 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2898 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2899
2900 # libdc1394 check
2901 if enabled libdc1394; then
2902     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2903         enable libdc1394_2; } ||
2904     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2905         enable libdc1394_1; } ||
2906     die "ERROR: No version of libdc1394 found "
2907 fi
2908
2909 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2910     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2911     enable sdl &&
2912     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2913 fi
2914
2915 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2916
2917 check_header linux/fb.h
2918 check_header linux/videodev.h
2919 check_header linux/videodev2.h
2920 check_header sys/videoio.h
2921
2922 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2923 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2924 # w32api 3.12 had it defined wrong
2925 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2926
2927 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2928 { check_header dev/bktr/ioctl_meteor.h &&
2929   check_header dev/bktr/ioctl_bt848.h; } ||
2930 { check_header machine/ioctl_meteor.h &&
2931   check_header machine/ioctl_bt848.h; } ||
2932 { check_header dev/video/meteor/ioctl_meteor.h &&
2933   check_header dev/video/bktr/ioctl_bt848.h; } ||
2934 check_header dev/ic/bt8xx.h
2935
2936 check_header sndio.h
2937 check_header sys/soundcard.h
2938 check_header soundcard.h
2939
2940 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2941
2942 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2943
2944 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2945
2946 enabled x11grab                         &&
2947 check_header X11/Xlib.h                 &&
2948 check_header X11/extensions/XShm.h      &&
2949 check_header X11/extensions/Xfixes.h    &&
2950 check_func XOpenDisplay -lX11           &&
2951 check_func XShmCreateImage -lX11 -lXext &&
2952 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2953
2954 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2955 check_cpp_condition \
2956     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2957     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2958       disable vdpau; }
2959 fi
2960
2961 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2962
2963 # add some useful compiler flags if supported
2964 check_cflags -Wdeclaration-after-statement
2965 check_cflags -Wall
2966 check_cflags -Wno-parentheses
2967 check_cflags -Wno-switch
2968 check_cflags -Wdisabled-optimization
2969 check_cflags -Wpointer-arith
2970 check_cflags -Wredundant-decls
2971 check_cflags -Wno-pointer-sign
2972 check_cflags -Wcast-qual
2973 check_cflags -Wwrite-strings
2974 check_cflags -Wtype-limits
2975 check_cflags -Wundef
2976 check_cflags -Wmissing-prototypes
2977 enabled extra_warnings && check_cflags -Winline
2978
2979 # add some linker flags
2980 check_ldflags -Wl,--warn-common
2981 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'
2982 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2983
2984 echo "X{};" > $TMPV
2985 if test_ldflags -Wl,--version-script,$TMPV; then
2986     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2987     check_cc <<EOF && enable symver_asm_label
2988 void ff_foo(void) __asm__ ("av_foo@VERSION");
2989 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2990 EOF
2991     check_cc <<EOF && enable symver_gnu_asm
2992 __asm__(".symver ff_foo,av_foo@VERSION");
2993 void ff_foo(void) {}
2994 EOF
2995 fi
2996
2997 if enabled small; then
2998     add_cflags $size_cflags
2999     optimizations="small"
3000 elif enabled optimizations; then
3001     add_cflags $speed_cflags
3002 else
3003     add_cflags $noopt_cflags
3004 fi
3005 check_cflags -fno-math-errno
3006 check_cflags -fno-signed-zeros
3007
3008 if enabled icc; then
3009     # Just warnings, no remarks
3010     check_cflags -w1
3011     # -wd: Disable following warnings
3012     # 144, 167, 556: -Wno-pointer-sign
3013     # 1292: attribute "foo" ignored
3014     # 10006: ignoring unknown option -fno-signed-zeros
3015     # 10148: ignoring unknown option -Wno-parentheses
3016     # 10156: ignoring option '-W'; no argument required
3017     check_cflags -wd144,167,556,1292,10006,10148,10156
3018     # 11030: Warning unknown option --as-needed
3019     # 10156: ignoring option '-export'; no argument required
3020     check_ldflags -wd10156,11030
3021     # Allow to compile with optimizations
3022     check_ldflags -march=$cpu
3023     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3024     enable ebp_available
3025     if enabled x86_32; then
3026         test ${icc_version%%.*} -ge 11 && \
3027             check_cflags -falign-stack=maintain-16-byte || \
3028             disable aligned_stack
3029     fi
3030 elif enabled ccc; then
3031     # disable some annoying warnings
3032     add_cflags -msg_disable cvtu32to64
3033     add_cflags -msg_disable embedcomment
3034     add_cflags -msg_disable needconstext
3035     add_cflags -msg_disable nomainieee
3036     add_cflags -msg_disable ptrmismatch1
3037     add_cflags -msg_disable unreachcode
3038 elif enabled gcc; then
3039     check_cflags -fno-tree-vectorize
3040     check_cflags -Werror=implicit-function-declaration
3041     check_cflags -Werror=missing-prototypes
3042 elif enabled llvm_gcc; then
3043     check_cflags -mllvm -stack-alignment=16
3044 elif enabled clang; then
3045     check_cflags -mllvm -stack-alignment=16
3046     check_cflags -Qunused-arguments
3047 elif enabled armcc; then
3048     # 2523: use of inline assembler is deprecated
3049     add_cflags -W${armcc_opt},--diag_suppress=2523
3050     add_cflags -W${armcc_opt},--diag_suppress=1207
3051     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3052     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3053 elif enabled tms470; then
3054     add_cflags -pds=824 -pds=837
3055 elif enabled pathscale; then
3056     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3057 fi
3058
3059 enabled_any $THREADS_LIST      && enable threads
3060
3061 check_deps $CONFIG_LIST       \
3062            $CONFIG_EXTRA      \
3063            $HAVE_LIST         \
3064            $DECODER_LIST      \
3065            $ENCODER_LIST      \
3066            $HWACCEL_LIST      \
3067            $PARSER_LIST       \
3068            $BSF_LIST          \
3069            $DEMUXER_LIST      \
3070            $MUXER_LIST        \
3071            $FILTER_LIST       \
3072            $INDEV_LIST        \
3073            $OUTDEV_LIST       \
3074            $PROTOCOL_LIST     \
3075            $ACODEC_TESTS      \
3076            $VCODEC_TESTS      \
3077            $LAVF_TESTS        \
3078            $LAVFI_TESTS       \
3079            $SEEK_TESTS        \
3080
3081 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3082
3083 echo "install prefix            $prefix"
3084 echo "source path               $source_path"
3085 echo "C compiler                $cc"
3086 echo "ARCH                      $arch ($cpu)"
3087 if test "$build_suffix" != ""; then
3088     echo "build suffix              $build_suffix"
3089 fi
3090 if test "$extra_version" != ""; then
3091     echo "version string suffix     $extra_version"
3092 fi
3093 echo "big-endian                ${bigendian-no}"
3094 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3095 if enabled x86; then
3096     echo "yasm                      ${yasm-no}"
3097     echo "MMX enabled               ${mmx-no}"
3098     echo "MMX2 enabled              ${mmx2-no}"
3099     echo "3DNow! enabled            ${amd3dnow-no}"
3100     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3101     echo "SSE enabled               ${sse-no}"
3102     echo "SSSE3 enabled             ${ssse3-no}"
3103     echo "AVX enabled               ${avx-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"