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