fate: merge identical pixdesc_be/le tests
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-postproc       disable libpostproc build
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code
110   --enable-vdpau           enable 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   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
195   --enable-cross-compile   assume a cross-compiler is used
196   --sysroot=PATH           root of cross-build tree
197   --sysinclude=PATH        location of cross-build system headers
198   --target-os=OS           compiler targets OS [$target_os]
199   --target-exec=CMD        command to run executables on target
200   --target-path=DIR        path to view of build directory on target
201   --nm=NM                  use nm tool
202   --ar=AR                  use archive tool AR [$ar_default]
203   --as=AS                  use assembler AS [$as_default]
204   --cc=CC                  use C compiler CC [$cc_default]
205   --ld=LD                  use linker LD
206   --host-cc=HOSTCC         use host C compiler HOSTCC
207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
209   --host-libs=HLIBS        use libs HLIBS when linking for host
210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
213   --extra-version=STRING   version string suffix []
214   --build-suffix=SUFFIX    library name suffix []
215   --arch=ARCH              select architecture [$arch]
216   --cpu=CPU                select the minimum required CPU (affects
217                            instruction selection, may crash on older CPUs)
218   --disable-asm            disable all assembler optimizations
219   --disable-altivec        disable AltiVec optimizations
220   --disable-amd3dnow       disable 3DNow! optimizations
221   --disable-amd3dnowext    disable 3DNow! extended optimizations
222   --disable-mmx            disable MMX optimizations
223   --disable-mmx2           disable MMX2 optimizations
224   --disable-sse            disable SSE optimizations
225   --disable-ssse3          disable SSSE3 optimizations
226   --disable-avx            disable AVX optimizations
227   --disable-armv5te        disable armv5te optimizations
228   --disable-armv6          disable armv6 optimizations
229   --disable-armv6t2        disable armv6t2 optimizations
230   --disable-armvfp         disable ARM VFP optimizations
231   --disable-iwmmxt         disable iwmmxt optimizations
232   --disable-mmi            disable MMI optimizations
233   --disable-neon           disable neon optimizations
234   --disable-vis            disable VIS optimizations
235   --disable-yasm           disable use of yasm assembler
236   --enable-pic             build position-independent code
237   --malloc-prefix=PFX      prefix malloc and related names with PFX
238   --enable-sram            allow use of on-chip SRAM
239   --disable-symver         disable symbol versioning
240   --optflags               override optimization-related compiler flags
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     mpegaudiodsp
956     network
957     nonfree
958     pic
959     postproc
960     rdft
961     rtpdec
962     runtime_cpudetect
963     shared
964     sinewin
965     small
966     sram
967     static
968     swscale
969     swscale_alpha
970     thumb
971     vaapi
972     vdpau
973     version3
974     x11grab
975     zlib
976 "
977
978 THREADS_LIST='
979     pthreads
980     w32threads
981 '
982
983 ARCH_LIST='
984     alpha
985     arm
986     avr32
987     avr32_ap
988     avr32_uc
989     bfin
990     ia64
991     m68k
992     mips
993     mips64
994     parisc
995     ppc
996     ppc64
997     s390
998     sh4
999     sparc
1000     sparc64
1001     tomi
1002     x86
1003     x86_32
1004     x86_64
1005 '
1006
1007 ARCH_EXT_LIST='
1008     altivec
1009     amd3dnow
1010     amd3dnowext
1011     armv5te
1012     armv6
1013     armv6t2
1014     armvfp
1015     avx
1016     iwmmxt
1017     mmi
1018     mmx
1019     mmx2
1020     neon
1021     ppc4xx
1022     sse
1023     ssse3
1024     vfpv3
1025     vis
1026 '
1027
1028 HAVE_LIST_PUB='
1029     bigendian
1030     fast_unaligned
1031 '
1032
1033 HAVE_LIST="
1034     $ARCH_EXT_LIST
1035     $HAVE_LIST_PUB
1036     $THREADS_LIST
1037     aligned_stack
1038     alsa_asoundlib_h
1039     altivec_h
1040     arpa_inet_h
1041     attribute_may_alias
1042     attribute_packed
1043     bswap
1044     closesocket
1045     cmov
1046     dcbzl
1047     dev_bktr_ioctl_bt848_h
1048     dev_bktr_ioctl_meteor_h
1049     dev_ic_bt8xx_h
1050     dev_video_meteor_ioctl_meteor_h
1051     dev_video_bktr_ioctl_bt848_h
1052     dlfcn_h
1053     dlopen
1054     dos_paths
1055     ebp_available
1056     ebx_available
1057     exp2
1058     exp2f
1059     fast_64bit
1060     fast_clz
1061     fast_cmov
1062     fcntl
1063     fork
1064     getaddrinfo
1065     gethrtime
1066     GetProcessMemoryInfo
1067     GetProcessTimes
1068     getrusage
1069     gnu_as
1070     struct_rusage_ru_maxrss
1071     ibm_asm
1072     inet_aton
1073     inline_asm
1074     isatty
1075     ldbrx
1076     libdc1394_1
1077     libdc1394_2
1078     llrint
1079     llrintf
1080     local_aligned_16
1081     local_aligned_8
1082     localtime_r
1083     log2
1084     log2f
1085     loongson
1086     lrint
1087     lrintf
1088     lzo1x_999_compress
1089     machine_ioctl_bt848_h
1090     machine_ioctl_meteor_h
1091     malloc_h
1092     MapViewOfFile
1093     memalign
1094     mkstemp
1095     mmap
1096     pld
1097     posix_memalign
1098     round
1099     roundf
1100     sdl
1101     sdl_video_size
1102     setmode
1103     sndio_h
1104     socklen_t
1105     soundcard_h
1106     poll_h
1107     setrlimit
1108     strerror_r
1109     strtok_r
1110     struct_addrinfo
1111     struct_ipv6_mreq
1112     struct_sockaddr_in6
1113     struct_sockaddr_sa_len
1114     struct_sockaddr_storage
1115     symver
1116     symver_gnu_asm
1117     symver_asm_label
1118     sys_mman_h
1119     sys_resource_h
1120     sys_select_h
1121     sys_soundcard_h
1122     sys_videoio_h
1123     threads
1124     trunc
1125     truncf
1126     vfp_args
1127     VirtualAlloc
1128     winsock2_h
1129     xform_asm
1130     xmm_clobbers
1131     yasm
1132 "
1133
1134 # options emitted with CONFIG_ prefix but not available on command line
1135 CONFIG_EXTRA="
1136     avutil
1137     gplv3
1138     lgplv3
1139 "
1140
1141 CMDLINE_SELECT="
1142     $ARCH_EXT_LIST
1143     $CONFIG_LIST
1144     $THREADS_LIST
1145     asm
1146     cross_compile
1147     debug
1148     extra_warnings
1149     logging
1150     optimizations
1151     symver
1152     yasm
1153 "
1154
1155 PATHS_LIST='
1156     bindir
1157     datadir
1158     incdir
1159     libdir
1160     mandir
1161     prefix
1162     shlibdir
1163 '
1164
1165 CMDLINE_SET="
1166     $PATHS_LIST
1167     ar
1168     arch
1169     as
1170     build_suffix
1171     cc
1172     cpu
1173     cross_prefix
1174     dep_cc
1175     extra_version
1176     host_cc
1177     host_cflags
1178     host_ldflags
1179     host_libs
1180     host_os
1181     ld
1182     logfile
1183     malloc_prefix
1184     nm
1185     optflags
1186     pkg_config
1187     samples
1188     sysinclude
1189     sysroot
1190     target_exec
1191     target_os
1192     target_path
1193 "
1194
1195 CMDLINE_APPEND="
1196     extra_cflags
1197 "
1198
1199 # code dependency declarations
1200
1201 # architecture extensions
1202
1203 armv5te_deps="arm"
1204 armv6_deps="arm"
1205 armv6t2_deps="arm"
1206 armvfp_deps="arm"
1207 iwmmxt_deps="arm"
1208 neon_deps="arm"
1209 vfpv3_deps="armvfp"
1210
1211 mmi_deps="mips"
1212
1213 altivec_deps="ppc"
1214 ppc4xx_deps="ppc"
1215
1216 vis_deps="sparc"
1217
1218 x86_64_suggest="cmov fast_cmov"
1219 amd3dnow_deps="mmx"
1220 amd3dnowext_deps="amd3dnow"
1221 mmx_deps="x86"
1222 mmx2_deps="mmx"
1223 sse_deps="mmx"
1224 ssse3_deps="sse"
1225 avx_deps="ssse3"
1226
1227 aligned_stack_if_any="ppc x86"
1228 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1229 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1230 fast_unaligned_if_any="armv6 ppc x86"
1231
1232 need_memalign="altivec neon sse"
1233 inline_asm_deps="!tms470"
1234
1235 symver_if_any="symver_asm_label symver_gnu_asm"
1236
1237 # subsystems
1238 dct_select="rdft"
1239 mdct_select="fft"
1240 rdft_select="fft"
1241 mpegaudiodsp_select="dct"
1242
1243 # decoders / encoders / hardware accelerators
1244 aac_decoder_select="mdct sinewin"
1245 aac_encoder_select="mdct sinewin"
1246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1247 ac3_decoder_select="mdct ac3dsp ac3_parser"
1248 ac3_encoder_select="mdct ac3dsp"
1249 ac3_fixed_encoder_select="mdct ac3dsp"
1250 alac_encoder_select="lpc"
1251 amrnb_decoder_select="lsp"
1252 amrwb_decoder_select="lsp"
1253 atrac1_decoder_select="mdct sinewin"
1254 atrac3_decoder_select="mdct"
1255 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1256 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1257 cavs_decoder_select="golomb"
1258 cook_decoder_select="mdct sinewin"
1259 cscd_decoder_suggest="zlib"
1260 dca_decoder_select="mdct"
1261 dnxhd_encoder_select="aandct"
1262 dxa_decoder_select="zlib"
1263 eac3_decoder_select="ac3_decoder"
1264 eac3_encoder_select="mdct ac3dsp"
1265 eamad_decoder_select="aandct"
1266 eatgq_decoder_select="aandct"
1267 eatqi_decoder_select="aandct"
1268 ffv1_decoder_select="golomb"
1269 flac_decoder_select="golomb"
1270 flac_encoder_select="golomb lpc"
1271 flashsv_decoder_select="zlib"
1272 flashsv_encoder_select="zlib"
1273 flv_decoder_select="h263_decoder"
1274 flv_encoder_select="h263_encoder"
1275 fraps_decoder_select="huffman"
1276 h261_encoder_select="aandct"
1277 h263_decoder_select="h263_parser"
1278 h263_encoder_select="aandct"
1279 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1280 h263i_decoder_select="h263_decoder"
1281 h263p_encoder_select="h263_encoder"
1282 h264_decoder_select="golomb h264dsp h264pred"
1283 h264_dxva2_hwaccel_deps="dxva2api_h"
1284 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1285 h264_vaapi_hwaccel_select="vaapi"
1286 h264_vdpau_decoder_select="vdpau h264_decoder"
1287 imc_decoder_select="fft mdct sinewin"
1288 jpegls_decoder_select="golomb"
1289 jpegls_encoder_select="golomb"
1290 ljpeg_encoder_select="aandct"
1291 loco_decoder_select="golomb"
1292 mjpeg_encoder_select="aandct"
1293 mlp_decoder_select="mlp_parser"
1294 mp1_decoder_select="mpegaudiodsp"
1295 mp2_decoder_select="mpegaudiodsp"
1296 mp3adu_decoder_select="mpegaudiodsp"
1297 mp3_decoder_select="mpegaudiodsp"
1298 mp3on4_decoder_select="mpegaudiodsp"
1299 mp1float_decoder_select="mpegaudiodsp"
1300 mp2float_decoder_select="mpegaudiodsp"
1301 mp3adufloat_decoder_select="mpegaudiodsp"
1302 mp3float_decoder_select="mpegaudiodsp"
1303 mp3on4float_decoder_select="mpegaudiodsp"
1304 mpeg1video_encoder_select="aandct"
1305 mpeg2video_encoder_select="aandct"
1306 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1307 mpeg4_encoder_select="h263_encoder"
1308 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1309 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1310 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1311 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1312 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1313 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1314 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1315 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1316 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1317 msmpeg4v1_decoder_select="h263_decoder"
1318 msmpeg4v1_encoder_select="h263_encoder"
1319 msmpeg4v2_decoder_select="h263_decoder"
1320 msmpeg4v2_encoder_select="h263_encoder"
1321 msmpeg4v3_decoder_select="h263_decoder"
1322 msmpeg4v3_encoder_select="h263_encoder"
1323 nellymoser_decoder_select="mdct sinewin"
1324 nellymoser_encoder_select="mdct sinewin"
1325 png_decoder_select="zlib"
1326 png_encoder_select="zlib"
1327 qcelp_decoder_select="lsp"
1328 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1329 ra_144_encoder_select="lpc"
1330 rv10_decoder_select="h263_decoder"
1331 rv10_encoder_select="h263_encoder"
1332 rv20_decoder_select="h263_decoder"
1333 rv20_encoder_select="h263_encoder"
1334 rv30_decoder_select="golomb h264pred"
1335 rv40_decoder_select="golomb h264pred"
1336 shorten_decoder_select="golomb"
1337 sipr_decoder_select="lsp"
1338 snow_decoder_select="dwt"
1339 snow_encoder_select="aandct dwt"
1340 svq1_encoder_select="aandct"
1341 svq3_decoder_select="golomb h264dsp h264pred"
1342 svq3_decoder_suggest="zlib"
1343 theora_decoder_select="vp3_decoder"
1344 tiff_decoder_suggest="zlib"
1345 tiff_encoder_suggest="zlib"
1346 truehd_decoder_select="mlp_decoder"
1347 tscc_decoder_select="zlib"
1348 twinvq_decoder_select="mdct lsp sinewin"
1349 vc1_decoder_select="h263_decoder"
1350 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1351 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1352 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1353 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1354 vorbis_decoder_select="mdct"
1355 vorbis_encoder_select="mdct"
1356 vp6_decoder_select="huffman"
1357 vp6a_decoder_select="vp6_decoder"
1358 vp6f_decoder_select="vp6_decoder"
1359 vp8_decoder_select="h264pred"
1360 wmapro_decoder_select="mdct sinewin"
1361 wmav1_decoder_select="mdct sinewin"
1362 wmav1_encoder_select="mdct sinewin"
1363 wmav2_decoder_select="mdct sinewin"
1364 wmav2_encoder_select="mdct sinewin"
1365 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1366 wmv1_decoder_select="h263_decoder"
1367 wmv1_encoder_select="h263_encoder"
1368 wmv2_decoder_select="h263_decoder"
1369 wmv2_encoder_select="h263_encoder"
1370 wmv3_decoder_select="vc1_decoder"
1371 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1372 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1373 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1374 zlib_decoder_select="zlib"
1375 zlib_encoder_select="zlib"
1376 zmbv_decoder_select="zlib"
1377 zmbv_encoder_select="zlib"
1378
1379 vaapi_deps="va_va_h"
1380 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1381
1382 # parsers
1383 h264_parser_select="golomb h264dsp h264pred"
1384
1385 # external libraries
1386 libdirac_decoder_deps="libdirac !libschroedinger"
1387 libdirac_encoder_deps="libdirac"
1388 libfaac_encoder_deps="libfaac"
1389 libgsm_decoder_deps="libgsm"
1390 libgsm_encoder_deps="libgsm"
1391 libgsm_ms_decoder_deps="libgsm"
1392 libgsm_ms_encoder_deps="libgsm"
1393 libmp3lame_encoder_deps="libmp3lame"
1394 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1395 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1396 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1397 libopenjpeg_decoder_deps="libopenjpeg"
1398 libschroedinger_decoder_deps="libschroedinger"
1399 libschroedinger_encoder_deps="libschroedinger"
1400 libspeex_decoder_deps="libspeex"
1401 libtheora_encoder_deps="libtheora"
1402 libvo_aacenc_encoder_deps="libvo_aacenc"
1403 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1404 libvorbis_encoder_deps="libvorbis"
1405 libvpx_decoder_deps="libvpx"
1406 libvpx_encoder_deps="libvpx"
1407 libx264_encoder_deps="libx264"
1408 libxavs_encoder_deps="libxavs"
1409 libxvid_encoder_deps="libxvid"
1410
1411 # demuxers / muxers
1412 ac3_demuxer_select="ac3_parser"
1413 asf_stream_muxer_select="asf_muxer"
1414 avisynth_demuxer_deps="avisynth"
1415 dirac_demuxer_select="dirac_parser"
1416 eac3_demuxer_select="ac3_parser"
1417 flac_demuxer_select="flac_parser"
1418 ipod_muxer_select="mov_muxer"
1419 libnut_demuxer_deps="libnut"
1420 libnut_muxer_deps="libnut"
1421 matroska_audio_muxer_select="matroska_muxer"
1422 matroska_demuxer_suggest="zlib bzlib"
1423 mov_demuxer_suggest="zlib"
1424 mp3_demuxer_select="mpegaudio_parser"
1425 mp4_muxer_select="mov_muxer"
1426 mpegtsraw_demuxer_select="mpegts_demuxer"
1427 mxf_d10_muxer_select="mxf_muxer"
1428 ogg_demuxer_select="golomb"
1429 psp_muxer_select="mov_muxer"
1430 rtp_demuxer_select="sdp_demuxer"
1431 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1432 rtsp_demuxer_select="http_protocol rtpdec"
1433 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1434 sap_demuxer_select="sdp_demuxer"
1435 sap_muxer_select="rtp_muxer rtp_protocol"
1436 sdp_demuxer_select="rtpdec"
1437 spdif_muxer_select="aac_parser"
1438 tg2_muxer_select="mov_muxer"
1439 tgp_muxer_select="mov_muxer"
1440 w64_demuxer_deps="wav_demuxer"
1441
1442 # indevs / outdevs
1443 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1444 alsa_outdev_deps="alsa_asoundlib_h"
1445 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1446 dv1394_indev_deps="dv1394 dv_demuxer"
1447 fbdev_indev_deps="linux_fb_h"
1448 jack_indev_deps="jack_jack_h"
1449 libdc1394_indev_deps="libdc1394"
1450 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1451 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1452 sndio_indev_deps="sndio_h"
1453 sndio_outdev_deps="sndio_h"
1454 v4l_indev_deps="linux_videodev_h"
1455 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1456 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1457 vfwcap_indev_extralibs="-lavicap32"
1458 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1459 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1460
1461 # protocols
1462 gopher_protocol_deps="network"
1463 http_protocol_deps="network"
1464 http_protocol_select="tcp_protocol"
1465 mmsh_protocol_select="http_protocol"
1466 mmst_protocol_deps="network"
1467 rtmp_protocol_select="tcp_protocol"
1468 rtp_protocol_select="udp_protocol"
1469 tcp_protocol_deps="network"
1470 udp_protocol_deps="network"
1471
1472 # filters
1473 blackframe_filter_deps="gpl"
1474 cropdetect_filter_deps="gpl"
1475 drawtext_filter_deps="libfreetype"
1476 frei0r_filter_deps="frei0r dlopen strtok_r"
1477 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1478 hqdn3d_filter_deps="gpl"
1479 ocv_filter_deps="libopencv"
1480 scale_filter_deps="swscale"
1481 yadif_filter_deps="gpl"
1482
1483 # libraries
1484 avdevice_deps="avcodec avformat"
1485 avformat_deps="avcodec"
1486 postproc_deps="gpl"
1487
1488 # programs
1489 ffmpeg_deps="avcodec avformat swscale"
1490 ffmpeg_select="buffer_filter"
1491 ffplay_deps="avcodec avformat swscale sdl"
1492 ffplay_select="rdft"
1493 ffprobe_deps="avcodec avformat"
1494 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1495 ffserver_extralibs='$ldl'
1496
1497 doc_deps="texi2html"
1498
1499 # tests
1500
1501 test_deps(){
1502     suf1=$1
1503     suf2=$2
1504     shift 2
1505     for v; do
1506         dep=${v%=*}
1507         tests=${v#*=}
1508         for name in ${tests}; do
1509             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1510         done
1511     done
1512 }
1513
1514 set_ne_test_deps(){
1515     eval ${1}_be_test_deps="bigendian"
1516     eval ${1}_le_test_deps="!bigendian"
1517 }
1518
1519 test_deps _encoder _decoder                                             \
1520     adpcm_g726=g726                                                     \
1521     adpcm_ima_qt                                                        \
1522     adpcm_ima_wav                                                       \
1523     adpcm_ms                                                            \
1524     adpcm_swf                                                           \
1525     adpcm_yamaha=adpcm_yam                                              \
1526     alac                                                                \
1527     asv1                                                                \
1528     asv2                                                                \
1529     bmp                                                                 \
1530     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1531     dvvideo="dv dv50"                                                   \
1532     ffv1                                                                \
1533     flac                                                                \
1534     flashsv                                                             \
1535     flv                                                                 \
1536     gif                                                                 \
1537     h261                                                                \
1538     h263="h263 h263p"                                                   \
1539     huffyuv                                                             \
1540     jpegls                                                              \
1541     mjpeg="jpg mjpeg ljpeg"                                             \
1542     mp2                                                                 \
1543     mpeg1video="mpeg mpeg1b"                                            \
1544     mpeg2video="mpeg2 mpeg2thread"                                      \
1545     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1546     msmpeg4v3=msmpeg4                                                   \
1547     msmpeg4v2                                                           \
1548     pbm=pbmpipe                                                         \
1549     pcx                                                                 \
1550     pgm="pgm pgmpipe"                                                   \
1551     png                                                                 \
1552     ppm="ppm ppmpipe"                                                   \
1553     rawvideo="rgb yuv"                                                  \
1554     roq                                                                 \
1555     rv10                                                                \
1556     rv20                                                                \
1557     sgi                                                                 \
1558     snow="snow snowll"                                                  \
1559     svq1                                                                \
1560     targa=tga                                                           \
1561     tiff                                                                \
1562     wmav1                                                               \
1563     wmav2                                                               \
1564     wmv1                                                                \
1565     wmv2                                                                \
1566
1567 test_deps _muxer _demuxer                                               \
1568     aiff                                                                \
1569     pcm_alaw=alaw                                                       \
1570     asf                                                                 \
1571     au                                                                  \
1572     avi                                                                 \
1573     dv=dv_fmt                                                           \
1574     ffm                                                                 \
1575     flv=flv_fmt                                                         \
1576     gxf                                                                 \
1577     matroska=mkv                                                        \
1578     mmf                                                                 \
1579     mov                                                                 \
1580     pcm_mulaw=mulaw                                                     \
1581     mxf                                                                 \
1582     nut                                                                 \
1583     ogg                                                                 \
1584     rawvideo=pixfmt                                                     \
1585     rm                                                                  \
1586     swf                                                                 \
1587     mpegts=ts                                                           \
1588     voc                                                                 \
1589     wav                                                                 \
1590     yuv4mpegpipe=yuv4mpeg                                               \
1591
1592 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1593 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1594
1595 set_ne_test_deps pixfmts_copy
1596 set_ne_test_deps pixfmts_crop
1597 set_ne_test_deps pixfmts_hflip
1598 set_ne_test_deps pixfmts_null
1599 set_ne_test_deps pixfmts_pad
1600 set_ne_test_deps pixfmts_scale
1601 set_ne_test_deps pixfmts_vflip
1602
1603 # default parameters
1604
1605 logfile="config.log"
1606
1607 # installation paths
1608 prefix_default="/usr/local"
1609 bindir_default='${prefix}/bin'
1610 datadir_default='${prefix}/share/ffmpeg'
1611 incdir_default='${prefix}/include'
1612 libdir_default='${prefix}/lib'
1613 mandir_default='${prefix}/share/man'
1614 shlibdir_default="$libdir_default"
1615
1616 # toolchain
1617 ar_default="ar"
1618 cc_default="gcc"
1619 cc_version=\"unknown\"
1620 host_cc_default="gcc"
1621 ln_s="ln -sf"
1622 nm_default="nm"
1623 objformat="elf"
1624 pkg_config_default=pkg-config
1625 ranlib="ranlib"
1626 yasmexe="yasm"
1627 nogas=":"
1628
1629 nm_opts='-g'
1630
1631 # machine
1632 arch_default=$(uname -m)
1633 cpu="generic"
1634
1635 # OS
1636 target_os_default=$(tolower $(uname -s))
1637 host_os=$target_os_default
1638
1639 # configurable options
1640 enable avcodec
1641 enable avdevice
1642 enable avfilter
1643 enable avformat
1644 enable avutil
1645 enable asm
1646 enable debug
1647 enable doc
1648 enable fastdiv
1649 enable ffmpeg
1650 enable ffplay
1651 enable ffprobe
1652 enable ffserver
1653 enable network
1654 enable optimizations
1655 enable postproc
1656 enable protocols
1657 enable static
1658 enable swscale
1659 enable swscale_alpha
1660
1661 # build settings
1662 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1663 FFSERVERLDFLAGS=-Wl,-E
1664 LIBPREF="lib"
1665 LIBSUF=".a"
1666 FULLNAME='$(NAME)$(BUILDSUF)'
1667 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1668 SLIBPREF="lib"
1669 SLIBSUF=".so"
1670 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1671 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1672 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1673 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1674
1675 AS_O='-o $@'
1676 CC_O='-o $@'
1677
1678 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1679 host_libs='-lm'
1680
1681 target_path='$(CURDIR)'
1682
1683 # since the object filename is not given with the -MM flag, the compiler
1684 # is only able to print the basename, and we must add the path ourselves
1685 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1686 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1687
1688 # find source path
1689 if test -f configure; then
1690     source_path=.
1691     disable source_path_used
1692 else
1693     source_path=$(cd $(dirname "$0"); pwd)
1694     enable source_path_used
1695     echo "$source_path" | grep -q '[[:blank:]]' &&
1696         die "Out of tree builds are impossible with whitespace in source path."
1697     test -e "$source_path/config.h" &&
1698         die "Out of tree builds are impossible with config.h in source dir."
1699 fi
1700
1701 for v in "$@"; do
1702     r=${v#*=}
1703     l=${v%"$r"}
1704     r=$(sh_quote "$r")
1705     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1706 done
1707
1708 find_things(){
1709     thing=$1
1710     pattern=$2
1711     file=$source_path/$3
1712     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1713 }
1714
1715 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1716 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1717 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1718 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1719 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1720 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1721 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1722 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1723 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1724 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1725 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1726
1727 find_tests(){
1728     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1729 }
1730
1731 ACODEC_TESTS=$(find_tests acodec)
1732 VCODEC_TESTS=$(find_tests vsynth1)
1733 LAVF_TESTS=$(find_tests lavf)
1734 LAVFI_TESTS=$(find_tests lavfi)
1735 SEEK_TESTS=$(find_tests seek seek_)
1736
1737 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1738
1739 for n in $COMPONENT_LIST; do
1740     v=$(toupper ${n%s})_LIST
1741     eval enable \$$v
1742     eval ${n}_if_any="\$$v"
1743 done
1744
1745 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1746
1747 die_unknown(){
1748     echo "Unknown option \"$1\"."
1749     echo "See $0 --help for available options."
1750     exit 1
1751 }
1752
1753 show_list() {
1754     suffix=_$1
1755     shift
1756     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1757     exit 0
1758 }
1759
1760 for opt do
1761     optval="${opt#*=}"
1762     case "$opt" in
1763     --extra-ldflags=*) add_ldflags $optval
1764     ;;
1765     --extra-libs=*) add_extralibs $optval
1766     ;;
1767     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1768     ;;
1769     --enable-debug=*) debuglevel="$optval"
1770     ;;
1771     --disable-everything)
1772     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1773     ;;
1774     --enable-*=*|--disable-*=*)
1775     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1776     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1777     eval list=\$$(toupper $thing)_LIST
1778     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1779     $action $(filter "$name" $list)
1780     ;;
1781     --enable-?*|--disable-?*)
1782     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1783     if is_in $option $COMPONENT_LIST; then
1784         test $action = disable && action=unset
1785         eval $action \$$(toupper ${option%s})_LIST
1786     elif is_in $option $CMDLINE_SELECT; then
1787         $action $option
1788     else
1789         die_unknown $opt
1790     fi
1791     ;;
1792     --list-*)
1793         NAME="${opt#--list-}"
1794         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1795         NAME=${NAME%s}
1796         eval show_list $NAME \$$(toupper $NAME)_LIST
1797     ;;
1798     --help|-h) show_help
1799     ;;
1800     *)
1801     optname="${opt%%=*}"
1802     optname="${optname#--}"
1803     optname=$(echo "$optname" | sed 's/-/_/g')
1804     if is_in $optname $CMDLINE_SET; then
1805         eval $optname='$optval'
1806     elif is_in $optname $CMDLINE_APPEND; then
1807         append $optname "$optval"
1808     else
1809          die_unknown $opt
1810     fi
1811     ;;
1812     esac
1813 done
1814
1815 disabled logging && logfile=/dev/null
1816
1817 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1818 set >> $logfile
1819
1820 test -n "$cross_prefix" && enable cross_compile
1821
1822 if enabled cross_compile; then
1823     test -n "$arch" && test -n "$target_os" ||
1824         die "Must specify target arch and OS when cross-compiling"
1825 fi
1826
1827 set_default arch target_os
1828
1829 ar_default="${cross_prefix}${ar_default}"
1830 cc_default="${cross_prefix}${cc_default}"
1831 nm_default="${cross_prefix}${nm_default}"
1832 pkg_config_default="${cross_prefix}${pkg_config_default}"
1833 ranlib="${cross_prefix}${ranlib}"
1834
1835 sysinclude_default="${sysroot}/usr/include"
1836
1837 set_default cc nm pkg_config sysinclude
1838 enabled cross_compile || host_cc_default=$cc
1839 set_default host_cc
1840
1841 if ! $pkg_config --version >/dev/null 2>&1; then
1842     warn "$pkg_config not found, library detection may fail."
1843     pkg_config=false
1844 fi
1845
1846 exesuf() {
1847     case $1 in
1848         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1849     esac
1850 }
1851
1852 EXESUF=$(exesuf $target_os)
1853 HOSTEXESUF=$(exesuf $host_os)
1854
1855 # set temporary file name
1856 : ${TMPDIR:=$TEMPDIR}
1857 : ${TMPDIR:=$TMP}
1858 : ${TMPDIR:=/tmp}
1859
1860 if ! check_cmd mktemp -u XXXXXX; then
1861     # simple replacement for missing mktemp
1862     # NOT SAFE FOR GENERAL USE
1863     mktemp(){
1864         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1865     }
1866 fi
1867
1868 tmpfile(){
1869     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1870         (set -C; exec > $tmp) 2>/dev/null ||
1871         die "Unable to create temporary file in $TMPDIR."
1872     append TMPFILES $tmp
1873     eval $1=$tmp
1874 }
1875
1876 trap 'rm -f -- $TMPFILES' EXIT
1877
1878 tmpfile TMPC  .c
1879 tmpfile TMPE  $EXESUF
1880 tmpfile TMPH  .h
1881 tmpfile TMPO  .o
1882 tmpfile TMPS  .S
1883 tmpfile TMPV  .ver
1884 tmpfile TMPSH .sh
1885 tmpfile TMPASM .asm
1886
1887 unset -f mktemp
1888
1889 chmod +x $TMPE
1890
1891 # make sure we can execute files in $TMPDIR
1892 cat > $TMPSH 2>> $logfile <<EOF
1893 #! /bin/sh
1894 EOF
1895 chmod +x $TMPSH >> $logfile 2>&1
1896 if ! $TMPSH >> $logfile 2>&1; then
1897     cat <<EOF
1898 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1899 variable to another directory and make sure that it is not mounted noexec.
1900 EOF
1901     die "Sanity test failed."
1902 fi
1903
1904 filter_cflags=echo
1905 filter_cppflags=echo
1906 filter_asflags=echo
1907
1908 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1909     cc_type=llvm_gcc
1910     cc_version=__VERSION__
1911     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1912     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1913     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1914     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1915     speed_cflags='-O3'
1916     size_cflags='-Os'
1917 elif $cc -v 2>&1 | grep -qi ^gcc; then
1918     cc_type=gcc
1919     cc_version=__VERSION__
1920     gcc_version=$($cc --version | head -n1)
1921     gcc_basever=$($cc -dumpversion)
1922     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1923     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1924     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1925     if ! $cc -dumpversion | grep -q '^2\.'; then
1926         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1927         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1928     fi
1929     speed_cflags='-O3'
1930     size_cflags='-Os'
1931 elif $cc --version 2>/dev/null | grep -q Intel; then
1932     cc_type=icc
1933     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1934     cc_ident=$($cc --version | head -n1)
1935     icc_version=$($cc -dumpversion)
1936     CC_DEPFLAGS='-MMD'
1937     AS_DEPFLAGS='-MMD'
1938     speed_cflags='-O3'
1939     size_cflags='-Os'
1940     noopt_cflags='-O1'
1941 elif $cc -v 2>&1 | grep -q xlc; then
1942     cc_type=xlc
1943     cc_version="AV_STRINGIFY(__IBMC__)"
1944     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1945     speed_cflags='-O5'
1946     size_cflags='-O5 -qcompact'
1947 elif $cc -V 2>/dev/null | grep -q Compaq; then
1948     cc_type=ccc
1949     cc_version="AV_STRINGIFY(__DECC_VER)"
1950     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1951     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1952     debuglevel=3
1953     add_ldflags -Wl,-z,now # calls to libots crash without this
1954     speed_cflags='-fast'
1955     size_cflags='-O1'
1956 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1957     test -d "$sysroot" || die "No valid sysroot specified."
1958     cc_type=armcc
1959     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1960     cc_ident=$($cc --vsn | head -n1)
1961     armcc_conf="$PWD/armcc.conf"
1962     $cc --arm_linux_configure                 \
1963         --arm_linux_config_file="$armcc_conf" \
1964         --configure_sysroot="$sysroot"        \
1965         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1966         die "Error creating armcc configuration file."
1967     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1968     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1969     as_default="${cross_prefix}gcc"
1970     CC_DEPFLAGS='-MMD'
1971     AS_DEPFLAGS='-MMD'
1972     speed_cflags='-O3'
1973     size_cflags='-Os'
1974     filter_asflags="filter_out -W${armcc_opt}*"
1975 elif $cc -version 2>/dev/null | grep -q TMS470; then
1976     cc_type=tms470
1977     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1978     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1979     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1980     CC_O='-fr=$(@D)'
1981     as_default="${cross_prefix}gcc"
1982     ld_default="${cross_prefix}gcc"
1983     TMPO=$(basename $TMPC .c).o
1984     append TMPFILES $TMPO
1985     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1986     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1987     AS_DEPFLAGS='-MMD'
1988     speed_cflags='-O3 -mf=5'
1989     size_cflags='-O3 -mf=2'
1990     filter_cflags=tms470_flags
1991     tms470_flags(){
1992         for flag; do
1993             case $flag in
1994                 -march=*|-mcpu=*)
1995                     case "${flag#*=}" in
1996                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1997                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1998                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1999                         armv6*|arm11*)          echo -mv=6   ;;
2000                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2001                                                 echo -mv=5e  ;;
2002                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2003                     esac
2004                     ;;
2005                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2006                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2007                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2008                 -msoft-float)   echo --float_support=vfplib       ;;
2009                 -O[0-3]|-mf=*)  echo $flag                        ;;
2010                 -g)             echo -g -mn                       ;;
2011                 -pds=*)         echo $flag                        ;;
2012             esac
2013         done
2014     }
2015 elif $cc -v 2>&1 | grep -q clang; then
2016     cc_type=clang
2017     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2018         cc_version=__clang_version__ || cc_version=__VERSION__
2019     cc_ident=$($cc --version | head -n1)
2020     CC_DEPFLAGS='-MMD'
2021     AS_DEPFLAGS='-MMD'
2022     speed_cflags='-O3'
2023     size_cflags='-Os'
2024 elif $cc -V 2>&1 | grep -q Sun; then
2025     cc_type=suncc
2026     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2027     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2028     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2029     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2030     speed_cflags='-O5'
2031     size_cflags='-O5 -xspace'
2032     filter_cflags=suncc_flags
2033     suncc_flags(){
2034         for flag; do
2035             case $flag in
2036                 -march=*|-mcpu=*)
2037                     case "${flag#*=}" in
2038                         native)                   echo -xtarget=native       ;;
2039                         v9|niagara)               echo -xarch=sparc          ;;
2040                         ultrasparc)               echo -xarch=sparcvis       ;;
2041                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2042                         i586|pentium)             echo -xchip=pentium        ;;
2043                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2044                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2045                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2046                         pentium4*)          echo -xtarget=pentium4           ;;
2047                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2048                         *-sse3)             echo -xarch=sse3                 ;;
2049                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2050                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2051                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2052                         k8|opteron|athlon64|athlon-fx)
2053                                                   echo -xarch=sse2a          ;;
2054                         athlon*)                  echo -xarch=pentium_proa   ;;
2055                     esac
2056                     ;;
2057                 -std=c99)             echo -xc99              ;;
2058                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2059                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2060                 -W*,*)                echo $flag              ;;
2061                 -f*-*|-W*)                                    ;;
2062                 *)                    echo $flag              ;;
2063             esac
2064         done
2065     }
2066 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2067     cc_type=pathscale
2068     cc_version=__PATHSCALE__
2069     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2070     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2072     speed_cflags='-O2'
2073     size_cflags='-Os'
2074     filter_cflags='filter_out -Wdisabled-optimization'
2075 elif $cc -v 2>&1 | grep -q Open64; then
2076     cc_type=open64
2077     cc_version=__OPEN64__
2078     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2079     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2080     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2081     speed_cflags='-O2'
2082     size_cflags='-Os'
2083     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2084 fi
2085
2086 test -n "$cc_type" && enable $cc_type ||
2087     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2088
2089 : ${as_default:=$cc}
2090 : ${dep_cc_default:=$cc}
2091 : ${ld_default:=$cc}
2092 set_default ar as dep_cc ld
2093
2094 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2095 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2096
2097 add_cflags $extra_cflags
2098 add_asflags $extra_cflags
2099
2100 if test -n "$sysroot"; then
2101     case "$cc_type" in
2102         gcc|llvm_gcc|clang)
2103             add_cppflags --sysroot="$sysroot"
2104             add_ldflags --sysroot="$sysroot"
2105         ;;
2106         tms470)
2107             add_cppflags -I"$sysinclude"
2108             add_ldflags  --sysroot="$sysroot"
2109         ;;
2110     esac
2111 fi
2112
2113 if test "$cpu" = host; then
2114     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2115
2116     case "$cc_type" in
2117         gcc|llvm_gcc)
2118             check_native(){
2119                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2120                 sed -n "/$1=/{
2121                             s/.*$1=\\([^ ]*\\).*/\\1/
2122                             p
2123                             q
2124                         }" $TMPE
2125             }
2126             cpu=$(check_native -march || check_native -mcpu)
2127         ;;
2128     esac
2129
2130     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2131 fi
2132
2133 # Deal with common $arch aliases
2134 case "$arch" in
2135     arm*)
2136         arch="arm"
2137     ;;
2138     mips|mipsel|IP*)
2139         arch="mips"
2140     ;;
2141     mips64*)
2142         arch="mips"
2143         subarch="mips64"
2144     ;;
2145     parisc|hppa)
2146         arch="parisc"
2147     ;;
2148     parisc64|hppa64)
2149         arch="parisc"
2150         subarch="parisc64"
2151     ;;
2152     "Power Macintosh"|ppc|powerpc)
2153         arch="ppc"
2154     ;;
2155     ppc64|powerpc64)
2156         arch="ppc"
2157         subarch="ppc64"
2158     ;;
2159     s390|s390x)
2160         arch="s390"
2161     ;;
2162     sh4|sh)
2163         arch="sh4"
2164     ;;
2165     sun4u|sparc64)
2166         arch="sparc"
2167         subarch="sparc64"
2168     ;;
2169     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2170         arch="x86"
2171     ;;
2172 esac
2173
2174 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2175 enable $arch
2176
2177 # Add processor-specific flags
2178 if test "$cpu" = generic; then
2179     : do nothing
2180 elif enabled ppc; then
2181
2182     case $(tolower $cpu) in
2183         601|ppc601|powerpc601)
2184             cpuflags="-mcpu=601"
2185             disable altivec
2186         ;;
2187         603*|ppc603*|powerpc603*)
2188             cpuflags="-mcpu=603"
2189             disable altivec
2190         ;;
2191         604*|ppc604*|powerpc604*)
2192             cpuflags="-mcpu=604"
2193             disable altivec
2194         ;;
2195         g3|75*|ppc75*|powerpc75*)
2196             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2197             disable altivec
2198         ;;
2199         g4|745*|ppc745*|powerpc745*)
2200             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2201         ;;
2202         74*|ppc74*|powerpc74*)
2203             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2204         ;;
2205         g5|970|ppc970|powerpc970|power4*)
2206             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2207         ;;
2208         cell)
2209             cpuflags="-mcpu=cell"
2210             enable ldbrx
2211         ;;
2212         e500v2)
2213             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2214             disable altivec
2215         ;;
2216         e500)
2217             cpuflags="-mcpu=8540 -mhard-float"
2218             disable altivec
2219         ;;
2220     esac
2221
2222 elif enabled x86; then
2223
2224     case $cpu in
2225         i[345]86|pentium)
2226             cpuflags="-march=$cpu"
2227             disable mmx
2228         ;;
2229         # targets that do NOT support conditional mov (cmov)
2230         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2231             cpuflags="-march=$cpu"
2232             disable cmov
2233         ;;
2234         # targets that do support conditional mov (cmov)
2235         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2236             cpuflags="-march=$cpu"
2237             enable cmov
2238             enable fast_cmov
2239         ;;
2240         # targets that do support conditional mov but on which it's slow
2241         pentium4|pentium4m|prescott|nocona)
2242             cpuflags="-march=$cpu"
2243             enable cmov
2244             disable fast_cmov
2245         ;;
2246     esac
2247
2248 elif enabled sparc; then
2249
2250     case $cpu in
2251         niagara)
2252             cpuflags="-mcpu=$cpu"
2253             disable vis
2254         ;;
2255         sparc64)
2256             cpuflags="-mcpu=v9"
2257         ;;
2258     esac
2259
2260 elif enabled arm; then
2261
2262     case $cpu in
2263         armv*)
2264             cpuflags="-march=$cpu"
2265             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2266         ;;
2267         *)
2268             cpuflags="-mcpu=$cpu"
2269             case $cpu in
2270                 cortex-a*)                               subarch=armv7a  ;;
2271                 cortex-r*)                               subarch=armv7r  ;;
2272                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2273                 arm11*)                                  subarch=armv6   ;;
2274                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2275                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2276             esac
2277         ;;
2278     esac
2279
2280 elif enabled alpha; then
2281
2282     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2283
2284 elif enabled bfin; then
2285
2286     cpuflags="-mcpu=$cpu"
2287
2288 elif enabled mips; then
2289
2290     cpuflags="-march=$cpu"
2291
2292 elif enabled avr32; then
2293
2294     case $cpu in
2295         ap7[02]0[0-2])
2296             subarch="avr32_ap"
2297             cpuflags="-mpart=$cpu"
2298         ;;
2299         ap)
2300             subarch="avr32_ap"
2301             cpuflags="-march=$cpu"
2302         ;;
2303         uc3[ab]*)
2304             subarch="avr32_uc"
2305             cpuflags="-mcpu=$cpu"
2306         ;;
2307         uc)
2308             subarch="avr32_uc"
2309             cpuflags="-march=$cpu"
2310         ;;
2311     esac
2312
2313 fi
2314
2315 add_cflags $cpuflags
2316 add_asflags $cpuflags
2317
2318 # compiler sanity check
2319 check_exec <<EOF
2320 int main(void){ return 0; }
2321 EOF
2322 if test "$?" != 0; then
2323     echo "$cc is unable to create an executable file."
2324     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2325         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2326         echo "Only do this if you know what cross compiling means."
2327     fi
2328     die "C compiler test failed."
2329 fi
2330
2331 add_cppflags -D_ISOC99_SOURCE
2332 check_cflags -std=c99
2333 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2334 #include <stdlib.h>
2335 EOF
2336 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2337 #include <stdlib.h>
2338 EOF
2339
2340 check_host_cflags -std=c99
2341 check_host_cflags -Wall
2342
2343 case "$arch" in
2344     alpha|ia64|mips|parisc|sparc)
2345         spic=$shared
2346     ;;
2347     x86)
2348         subarch="x86_32"
2349         check_cc <<EOF && subarch="x86_64"
2350         int test[(int)sizeof(char*) - 7];
2351 EOF
2352         if test "$subarch" = "x86_64"; then
2353             spic=$shared
2354         fi
2355     ;;
2356 esac
2357
2358 enable $subarch
2359 enabled spic && enable pic
2360
2361 # OS specific
2362 case $target_os in
2363     haiku)
2364         prefix_default="/boot/common"
2365         network_extralibs="-lnetwork"
2366         host_libs=
2367         ;;
2368     sunos)
2369         FFSERVERLDFLAGS=""
2370         SHFLAGS='-shared -Wl,-h,$$(@F)'
2371         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2372         network_extralibs="-lsocket -lnsl"
2373         add_cppflags -D__EXTENSIONS__
2374         nm_opts='-P -g'
2375         ;;
2376     netbsd)
2377         disable symver
2378         oss_indev_extralibs="-lossaudio"
2379         oss_outdev_extralibs="-lossaudio"
2380         ;;
2381     openbsd)
2382         enable malloc_aligned
2383         # On OpenBSD 4.5. the compiler does not use PIC unless
2384         # explicitly using -fPIC. Libav builds fine without PIC,
2385         # however the generated executable will not do anything
2386         # (simply quits with exit-code 1, no crash, no output).
2387         # Thus explicitly enable PIC here.
2388         enable pic
2389         disable symver
2390         SHFLAGS='-shared'
2391         oss_indev_extralibs="-lossaudio"
2392         oss_outdev_extralibs="-lossaudio"
2393         ;;
2394     dragonfly)
2395         enable malloc_aligned
2396         disable symver
2397         ;;
2398     freebsd)
2399         enable malloc_aligned
2400         ;;
2401     bsd/os)
2402         add_extralibs -lpoll -lgnugetopt
2403         ;;
2404     darwin)
2405         enable malloc_aligned
2406         gas="gas-preprocessor.pl $cc"
2407         enabled ppc && add_asflags -force_cpusubtype_ALL
2408         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2409         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2410         add_ldflags -Wl,-dynamic,-search_paths_first
2411         SLIBSUF=".dylib"
2412         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2413         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2414         FFSERVERLDFLAGS=-Wl,-bind_at_load
2415         objformat="macho"
2416         enabled x86_64 && objformat="macho64"
2417         enabled_any pic shared ||
2418             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2419         ;;
2420     mingw32*)
2421         if test $target_os = "mingw32ce"; then
2422             disable network
2423         else
2424             target_os=mingw32
2425         fi
2426         LIBTARGET=i386
2427         if enabled x86_64; then
2428             enable malloc_aligned
2429             LIBTARGET="i386:x86-64"
2430         elif enabled arm; then
2431             LIBTARGET=arm-wince
2432         fi
2433         shlibdir_default="$bindir_default"
2434         SLIBPREF=""
2435         SLIBSUF=".dll"
2436         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2437         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2438         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2439         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2440             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2441             install -d "$(LIBDIR)"; \
2442             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2443         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2444         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'
2445         objformat="win32"
2446         dlltool="${cross_prefix}dlltool"
2447         enable dos_paths
2448         check_cflags -fno-common
2449         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2450                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2451                 die "ERROR: MinGW runtime version must be >= 3.15."
2452         add_cppflags -U__STRICT_ANSI__
2453         ;;
2454     cygwin*)
2455         target_os=cygwin
2456         shlibdir_default="$bindir_default"
2457         SLIBPREF="cyg"
2458         SLIBSUF=".dll"
2459         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2460         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2461         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2462         objformat="win32"
2463         enable dos_paths
2464         check_cflags -fno-common
2465         add_cppflags -U__STRICT_ANSI__
2466         ;;
2467     *-dos|freedos|opendos)
2468         network_extralibs="-lsocket"
2469         objformat="coff"
2470         enable dos_paths
2471         add_cppflags -U__STRICT_ANSI__
2472         ;;
2473     linux)
2474         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2475         enable dv1394
2476         ;;
2477     irix*)
2478         target_os=irix
2479         ranlib="echo ignoring ranlib"
2480         ;;
2481     os/2*)
2482         ln_s="cp -f"
2483         objformat="aout"
2484         add_cppflags -D_GNU_SOURCE
2485         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2486         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2487         FFSERVERLDFLAGS=""
2488         LIBSUF="_s.a"
2489         SLIBPREF=""
2490         SLIBSUF=".dll"
2491         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2492         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2493         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2494           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2495           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2496           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2497           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2498           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2499         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2500           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2501         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2502         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2503         enable dos_paths
2504         ;;
2505     gnu/kfreebsd)
2506         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2507         ;;
2508     gnu)
2509         ;;
2510     qnx)
2511         add_cppflags -D_QNX_SOURCE
2512         network_extralibs="-lsocket"
2513         ;;
2514     symbian)
2515         SLIBSUF=".dll"
2516         enable dos_paths
2517         add_cflags --include=$sysinclude/gcce/gcce.h
2518         ;;
2519     none)
2520         ;;
2521     *)
2522         die "Unknown OS '$target_os'."
2523         ;;
2524 esac
2525
2526 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2527
2528 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2529
2530 set_default $PATHS_LIST
2531
2532 # we need to build at least one lib type
2533 if ! enabled_any static shared; then
2534     cat <<EOF
2535 At least one library type must be built.
2536 Specify --enable-static to build the static libraries or --enable-shared to
2537 build the shared libraries as well. To only build the shared libraries specify
2538 --disable-static in addition to --enable-shared.
2539 EOF
2540     exit 1;
2541 fi
2542
2543 disabled static && LIBNAME=""
2544
2545 die_license_disabled() {
2546     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2547 }
2548
2549 die_license_disabled gpl libx264
2550 die_license_disabled gpl libxavs
2551 die_license_disabled gpl libxvid
2552 die_license_disabled gpl x11grab
2553
2554 die_license_disabled nonfree libfaac
2555
2556 die_license_disabled version3 libopencore_amrnb
2557 die_license_disabled version3 libopencore_amrwb
2558 die_license_disabled version3 libvo_aacenc
2559 die_license_disabled version3 libvo_amrwbenc
2560
2561 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2562
2563 disabled optimizations || check_cflags -fomit-frame-pointer
2564
2565 enable_pic() {
2566     enable pic
2567     add_cppflags -DPIC
2568     add_cflags   -fPIC
2569     add_asflags  -fPIC
2570 }
2571
2572 enabled pic && enable_pic
2573
2574 check_cc <<EOF || die "Symbol mangling check failed."
2575 int ff_extern;
2576 EOF
2577 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2578 extern_prefix=${sym%%ff_extern*}
2579
2580 check_cc <<EOF && enable inline_asm
2581 void foo(void) { __asm__ volatile ("" ::); }
2582 EOF
2583
2584 _restrict=
2585 for restrict_keyword in restrict __restrict__ __restrict; do
2586     check_cc <<EOF && _restrict=$restrict_keyword && break
2587 void foo(char * $restrict_keyword p);
2588 EOF
2589 done
2590
2591 check_cc <<EOF && enable attribute_packed
2592 struct { int x; } __attribute__((packed)) x;
2593 EOF
2594
2595 check_cc <<EOF && enable attribute_may_alias
2596 union { int x; } __attribute__((may_alias)) x;
2597 EOF
2598
2599 check_cc <<EOF || die "endian test failed"
2600 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2601 EOF
2602 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2603
2604 if enabled alpha; then
2605
2606     check_cflags -mieee
2607
2608 elif enabled arm; then
2609
2610     enabled thumb && check_cflags -mthumb || check_cflags -marm
2611     nogas=die
2612
2613     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2614         enable vfp_args
2615     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2616         case "${cross_prefix:-$cc}" in
2617             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2618             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2619 __asm__ (".eabi_attribute 28, 1");
2620 int main(void) { return 0; }
2621 EOF
2622         esac
2623         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2624     fi
2625
2626     # We have to check if pld is a nop and disable it.
2627     check_asm pld '"pld [r0]"'
2628
2629     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2630     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2631     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2632     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2633     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2634     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2635     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2636
2637     enabled_all armv6t2 shared !pic && enable_pic
2638
2639 elif enabled mips; then
2640
2641     check_asm loongson '"dmult.g $1, $2, $3"'
2642     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2643
2644 elif enabled ppc; then
2645
2646     enable local_aligned_8 local_aligned_16
2647
2648     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2649     check_asm ibm_asm   '"add 0, 0, 0"'
2650     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2651     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2652
2653     # AltiVec flags: The FSF version of GCC differs from the Apple version
2654     if enabled altivec; then
2655         nogas=warn
2656         check_cflags -maltivec -mabi=altivec &&
2657         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2658         check_cflags -faltivec
2659
2660         # check if our compiler supports Motorola AltiVec C API
2661         check_cc <<EOF || disable altivec
2662 $inc_altivec_h
2663 int main(void) {
2664     vector signed int v1, v2, v3;
2665     v1 = vec_add(v2,v3);
2666     return 0;
2667 }
2668 EOF
2669
2670         # check if our compiler supports braces for vector declarations
2671         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2672 $inc_altivec_h
2673 int main (void) { (vector int) {1}; return 0; }
2674 EOF
2675     fi
2676
2677 elif enabled sparc; then
2678
2679     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2680         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2681
2682 elif enabled x86; then
2683
2684     enable local_aligned_8 local_aligned_16
2685
2686     # check whether EBP is available on x86
2687     # As 'i' is stored on the stack, this program will crash
2688     # if the base pointer is used to access it because the
2689     # base pointer is cleared in the inline assembly code.
2690     check_exec_crash <<EOF && enable ebp_available
2691     volatile int i=0;
2692     __asm__ volatile (
2693         "xorl %%ebp, %%ebp"
2694     ::: "%ebp");
2695     return i;
2696 EOF
2697
2698     # check whether EBX is available on x86
2699     check_asm ebx_available '""::"b"(0)' &&
2700         check_asm ebx_available '"":::"%ebx"'
2701
2702     # check whether xmm clobbers are supported
2703     check_asm xmm_clobbers '"":::"%xmm0"'
2704
2705     # check whether binutils is new enough to compile SSSE3/MMX2
2706     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2707     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2708
2709     check_asm bswap '"bswap %%eax" ::: "%eax"'
2710
2711     if ! disabled_any asm mmx yasm; then
2712         if check_cmd $yasmexe --version; then
2713             enabled x86_64 && yasm_extra="-m amd64"
2714             yasm_debug="-g dwarf2"
2715         elif check_cmd nasm -v; then
2716             yasmexe=nasm
2717             yasm_debug="-g -F dwarf"
2718             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2719         fi
2720
2721         YASMFLAGS="-f $objformat $yasm_extra"
2722         enabled pic               && append YASMFLAGS "-DPIC"
2723         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2724         case "$objformat" in
2725             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2726         esac
2727
2728         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2729             die "yasm not found, use --disable-yasm for a crippled build"
2730         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2731     fi
2732
2733     case "$cpu" in
2734         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2735             disable fast_clz
2736         ;;
2737     esac
2738
2739 fi
2740
2741 if enabled asm; then
2742     as=${gas:=$as}
2743     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2744         $nogas "GNU assembler not found, install gas-preprocessor"
2745 fi
2746
2747 check_ldflags -Wl,--as-needed
2748
2749 if check_func dlopen; then
2750     ldl=
2751 elif check_func dlopen -ldl; then
2752     ldl=-ldl
2753 fi
2754
2755 if enabled network; then
2756     check_type "sys/types.h sys/socket.h" socklen_t
2757     check_type netdb.h "struct addrinfo"
2758     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2759     check_type netinet/in.h "struct sockaddr_in6"
2760     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2761     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2762     # Prefer arpa/inet.h over winsock2
2763     if check_header arpa/inet.h ; then
2764         check_func closesocket
2765     elif check_header winsock2.h ; then
2766         check_func_headers winsock2.h closesocket -lws2 && \
2767             network_extralibs="-lws2" || \
2768         { check_func_headers winsock2.h closesocket -lws2_32 && \
2769             network_extralibs="-lws2_32"; }
2770         check_type ws2tcpip.h socklen_t
2771         check_type ws2tcpip.h "struct addrinfo"
2772         check_type ws2tcpip.h "struct ipv6_mreq"
2773         check_type ws2tcpip.h "struct sockaddr_in6"
2774         check_type ws2tcpip.h "struct sockaddr_storage"
2775         check_struct winsock2.h "struct sockaddr" sa_len
2776     else
2777         disable network
2778     fi
2779 fi
2780
2781 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2782 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2783
2784 check_func  fcntl
2785 check_func  fork
2786 check_func  getaddrinfo $network_extralibs
2787 check_func  gethrtime
2788 check_func  getrusage
2789 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2790 check_func  inet_aton $network_extralibs
2791 check_func  isatty
2792 check_func  localtime_r
2793 check_func  ${malloc_prefix}memalign            && enable memalign
2794 check_func  mkstemp
2795 check_func  mmap
2796 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2797 check_func  setrlimit
2798 check_func  strerror_r
2799 check_func  strtok_r
2800 check_func_headers io.h setmode
2801 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2802 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2803 check_func_headers windows.h GetProcessTimes
2804 check_func_headers windows.h MapViewOfFile
2805 check_func_headers windows.h VirtualAlloc
2806
2807 check_header dlfcn.h
2808 check_header dxva2api.h
2809 check_header malloc.h
2810 check_header poll.h
2811 check_header sys/mman.h
2812 check_header sys/resource.h
2813 check_header sys/select.h
2814 check_header vdpau/vdpau.h
2815 check_header vdpau/vdpau_x11.h
2816 check_header X11/extensions/XvMClib.h
2817
2818 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2819
2820 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2821 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2822
2823 # check for some common methods of building with pthread support
2824 # do this before the optional library checks as some of them require pthreads
2825 if ! disabled pthreads && ! enabled w32threads; then
2826     enable pthreads
2827     if check_func pthread_create; then
2828         :
2829     elif check_func pthread_create -pthread; then
2830         add_cflags -pthread
2831         add_extralibs -pthread
2832     elif check_func pthread_create -pthreads; then
2833         add_cflags -pthreads
2834         add_extralibs -pthreads
2835     elif check_func pthread_create -lpthreadGC2; then
2836         add_extralibs -lpthreadGC2
2837     elif ! check_lib pthread.h pthread_create -lpthread; then
2838         disable pthreads
2839     fi
2840 fi
2841
2842 for thread in $THREADS_LIST; do
2843     if enabled $thread; then
2844         test -n "$thread_type" &&
2845             die "ERROR: Only one thread type must be selected." ||
2846             thread_type="$thread"
2847     fi
2848 done
2849
2850 check_lib math.h sin -lm && LIBM="-lm"
2851 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2852
2853 check_mathfunc exp2
2854 check_mathfunc exp2f
2855 check_mathfunc llrint
2856 check_mathfunc llrintf
2857 check_mathfunc log2
2858 check_mathfunc log2f
2859 check_mathfunc lrint
2860 check_mathfunc lrintf
2861 check_mathfunc round
2862 check_mathfunc roundf
2863 check_mathfunc trunc
2864 check_mathfunc truncf
2865
2866 # these are off by default, so fail if requested and not available
2867 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2868 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2869 enabled libdirac   && require_pkg_config dirac                          \
2870     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2871     "dirac_decoder_init dirac_encoder_init"
2872 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2873 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2874 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2875 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2876 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2877 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2878 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2879 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2880 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2881 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2882 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2883 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2884 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2885 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2886 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2887 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2888 enabled libvpx     && {
2889     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2890                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2891     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2892                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2893 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2894                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2895                         die "ERROR: libx264 version must be >= 0.115."; }
2896 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2897 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2898 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2899
2900 # libdc1394 check
2901 if enabled libdc1394; then
2902     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2903         enable libdc1394_2; } ||
2904     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2905         enable libdc1394_1; } ||
2906     die "ERROR: No version of libdc1394 found "
2907 fi
2908
2909 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2910     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2911     enable sdl &&
2912     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2913 fi
2914
2915 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2916
2917 check_header linux/fb.h
2918 check_header linux/videodev.h
2919 check_header linux/videodev2.h
2920 check_header sys/videoio.h
2921
2922 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2923 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2924 # w32api 3.12 had it defined wrong
2925 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2926
2927 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2928 { check_header dev/bktr/ioctl_meteor.h &&
2929   check_header dev/bktr/ioctl_bt848.h; } ||
2930 { check_header machine/ioctl_meteor.h &&
2931   check_header machine/ioctl_bt848.h; } ||
2932 { check_header dev/video/meteor/ioctl_meteor.h &&
2933   check_header dev/video/bktr/ioctl_bt848.h; } ||
2934 check_header dev/ic/bt8xx.h
2935
2936 check_header sndio.h
2937 check_header sys/soundcard.h
2938 check_header soundcard.h
2939
2940 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2941
2942 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2943
2944 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2945
2946 enabled x11grab                         &&
2947 check_header X11/Xlib.h                 &&
2948 check_header X11/extensions/XShm.h      &&
2949 check_header X11/extensions/Xfixes.h    &&
2950 check_func XOpenDisplay -lX11           &&
2951 check_func XShmCreateImage -lX11 -lXext &&
2952 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2953
2954 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2955 check_cpp_condition \
2956     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2957     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2958       disable vdpau; }
2959 fi
2960
2961 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2962
2963 # add some useful compiler flags if supported
2964 check_cflags -Wdeclaration-after-statement
2965 check_cflags -Wall
2966 check_cflags -Wno-parentheses
2967 check_cflags -Wno-switch
2968 check_cflags -Wno-format-zero-length
2969 check_cflags -Wdisabled-optimization
2970 check_cflags -Wpointer-arith
2971 check_cflags -Wredundant-decls
2972 check_cflags -Wno-pointer-sign
2973 check_cflags -Wcast-qual
2974 check_cflags -Wwrite-strings
2975 check_cflags -Wtype-limits
2976 check_cflags -Wundef
2977 check_cflags -Wmissing-prototypes
2978 enabled extra_warnings && check_cflags -Winline
2979
2980 # add some linker flags
2981 check_ldflags -Wl,--warn-common
2982 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
2983 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2984
2985 echo "X{};" > $TMPV
2986 if test_ldflags -Wl,--version-script,$TMPV; then
2987     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2988     check_cc <<EOF && enable symver_asm_label
2989 void ff_foo(void) __asm__ ("av_foo@VERSION");
2990 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2991 EOF
2992     check_cc <<EOF && enable symver_gnu_asm
2993 __asm__(".symver ff_foo,av_foo@VERSION");
2994 void ff_foo(void) {}
2995 EOF
2996 fi
2997
2998 if [ -n "$optflags" ]; then
2999     add_cflags $optflags
3000 elif enabled small; then
3001     add_cflags $size_cflags
3002 elif enabled optimizations; then
3003     add_cflags $speed_cflags
3004 else
3005     add_cflags $noopt_cflags
3006 fi
3007 check_cflags -fno-math-errno
3008 check_cflags -fno-signed-zeros
3009
3010 if enabled icc; then
3011     # Just warnings, no remarks
3012     check_cflags -w1
3013     # -wd: Disable following warnings
3014     # 144, 167, 556: -Wno-pointer-sign
3015     # 1292: attribute "foo" ignored
3016     # 10006: ignoring unknown option -fno-signed-zeros
3017     # 10148: ignoring unknown option -Wno-parentheses
3018     # 10156: ignoring option '-W'; no argument required
3019     check_cflags -wd144,167,556,1292,10006,10148,10156
3020     # 11030: Warning unknown option --as-needed
3021     # 10156: ignoring option '-export'; no argument required
3022     check_ldflags -wd10156,11030
3023     # Allow to compile with optimizations
3024     check_ldflags -march=$cpu
3025     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3026     enable ebp_available
3027     if enabled x86_32; then
3028         test ${icc_version%%.*} -ge 11 && \
3029             check_cflags -falign-stack=maintain-16-byte || \
3030             disable aligned_stack
3031     fi
3032 elif enabled ccc; then
3033     # disable some annoying warnings
3034     add_cflags -msg_disable cvtu32to64
3035     add_cflags -msg_disable embedcomment
3036     add_cflags -msg_disable needconstext
3037     add_cflags -msg_disable nomainieee
3038     add_cflags -msg_disable ptrmismatch1
3039     add_cflags -msg_disable unreachcode
3040 elif enabled gcc; then
3041     check_cflags -fno-tree-vectorize
3042     check_cflags -Werror=implicit-function-declaration
3043     check_cflags -Werror=missing-prototypes
3044 elif enabled llvm_gcc; then
3045     check_cflags -mllvm -stack-alignment=16
3046 elif enabled clang; then
3047     check_cflags -mllvm -stack-alignment=16
3048     check_cflags -Qunused-arguments
3049 elif enabled armcc; then
3050     # 2523: use of inline assembler is deprecated
3051     add_cflags -W${armcc_opt},--diag_suppress=2523
3052     add_cflags -W${armcc_opt},--diag_suppress=1207
3053     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3054     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3055     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3056     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3057 elif enabled tms470; then
3058     add_cflags -pds=824 -pds=837
3059 elif enabled pathscale; then
3060     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3061 fi
3062
3063 enabled_any $THREADS_LIST      && enable threads
3064
3065 check_deps $CONFIG_LIST       \
3066            $CONFIG_EXTRA      \
3067            $HAVE_LIST         \
3068            $DECODER_LIST      \
3069            $ENCODER_LIST      \
3070            $HWACCEL_LIST      \
3071            $PARSER_LIST       \
3072            $BSF_LIST          \
3073            $DEMUXER_LIST      \
3074            $MUXER_LIST        \
3075            $FILTER_LIST       \
3076            $INDEV_LIST        \
3077            $OUTDEV_LIST       \
3078            $PROTOCOL_LIST     \
3079            $ACODEC_TESTS      \
3080            $VCODEC_TESTS      \
3081            $LAVF_TESTS        \
3082            $LAVFI_TESTS       \
3083            $SEEK_TESTS        \
3084
3085 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3086
3087 ! enabled_any memalign posix_memalign malloc_aligned &&
3088     enabled_any $need_memalign && enable memalign_hack
3089
3090 echo "install prefix            $prefix"
3091 echo "source path               $source_path"
3092 echo "C compiler                $cc"
3093 echo "ARCH                      $arch ($cpu)"
3094 if test "$build_suffix" != ""; then
3095     echo "build suffix              $build_suffix"
3096 fi
3097 if test "$extra_version" != ""; then
3098     echo "version string suffix     $extra_version"
3099 fi
3100 echo "big-endian                ${bigendian-no}"
3101 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3102 if enabled x86; then
3103     echo "${yasmexe}                      ${yasm-no}"
3104     echo "MMX enabled               ${mmx-no}"
3105     echo "MMX2 enabled              ${mmx2-no}"
3106     echo "3DNow! enabled            ${amd3dnow-no}"
3107     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3108     echo "SSE enabled               ${sse-no}"
3109     echo "SSSE3 enabled             ${ssse3-no}"
3110     echo "AVX enabled               ${avx-no}"
3111     echo "CMOV enabled              ${cmov-no}"
3112     echo "CMOV is fast              ${fast_cmov-no}"
3113     echo "EBX available             ${ebx_available-no}"
3114     echo "EBP available             ${ebp_available-no}"
3115 fi
3116 if enabled arm; then
3117     echo "ARMv5TE enabled           ${armv5te-no}"
3118     echo "ARMv6 enabled             ${armv6-no}"
3119     echo "ARMv6T2 enabled           ${armv6t2-no}"
3120     echo "ARM VFP enabled           ${armvfp-no}"
3121     echo "IWMMXT enabled            ${iwmmxt-no}"
3122     echo "NEON enabled              ${neon-no}"
3123 fi
3124 if enabled mips; then
3125     echo "MMI enabled               ${mmi-no}"
3126 fi
3127 if enabled ppc; then
3128     echo "AltiVec enabled           ${altivec-no}"
3129     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3130     echo "dcbzl available           ${dcbzl-no}"
3131 fi
3132 if enabled sparc; then
3133     echo "VIS enabled               ${vis-no}"
3134 fi
3135 echo "debug symbols             ${debug-no}"
3136 echo "optimize for size         ${small-no}"
3137 echo "optimizations             ${optimizations-no}"
3138 echo "static                    ${static-no}"
3139 echo "shared                    ${shared-no}"
3140 echo "postprocessing support    ${postproc-no}"
3141 echo "new filter support        ${avfilter-no}"
3142 echo "network support           ${network-no}"
3143 echo "threading support         ${thread_type-no}"
3144 echo "SDL support               ${sdl-no}"
3145 echo "Sun medialib support      ${mlib-no}"
3146 echo "AVISynth enabled          ${avisynth-no}"
3147 echo "frei0r enabled            ${frei0r-no}"
3148 echo "libdc1394 support         ${libdc1394-no}"
3149 echo "libdirac enabled          ${libdirac-no}"
3150 echo "libfaac enabled           ${libfaac-no}"
3151 echo "libgsm enabled            ${libgsm-no}"
3152 echo "libmp3lame enabled        ${libmp3lame-no}"
3153 echo "libnut enabled            ${libnut-no}"
3154 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3155 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3156 echo "libopencv support         ${libopencv-no}"
3157 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3158 echo "librtmp enabled           ${librtmp-no}"
3159 echo "libschroedinger enabled   ${libschroedinger-no}"
3160 echo "libspeex enabled          ${libspeex-no}"
3161 echo "libtheora enabled         ${libtheora-no}"
3162 echo "libva enabled             ${vaapi-no}"
3163 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3164 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3165 echo "libvorbis enabled         ${libvorbis-no}"
3166 echo "libvpx enabled            ${libvpx-no}"
3167 echo "libx264 enabled           ${libx264-no}"
3168 echo "libxavs enabled           ${libxavs-no}"
3169 echo "libxvid enabled           ${libxvid-no}"
3170 echo "zlib enabled              ${zlib-no}"
3171 echo "bzlib enabled             ${bzlib-no}"
3172 echo
3173
3174 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3175     echo "Enabled ${type}s:"
3176     eval list=\$$(toupper $type)_LIST
3177     print_enabled '_*' $list | sort | pr -r -3 -t
3178     echo
3179 done
3180
3181 license="LGPL version 2.1 or later"
3182 if enabled nonfree; then
3183     license="nonfree and unredistributable"
3184 elif enabled gplv3; then
3185     license="GPL version 3 or later"
3186 elif enabled lgplv3; then
3187     license="LGPL version 3 or later"
3188 elif enabled gpl; then
3189     license="GPL version 2 or later"
3190 fi
3191
3192 echo "License: $license"
3193
3194 echo "Creating config.mak and config.h..."
3195
3196 # build tree in object directory if source path is different from current one
3197 if enabled source_path_used; then
3198     DIRS="
3199         doc
3200         libavcodec
3201         libavcodec/$arch
3202         libavdevice
3203         libavfilter
3204         libavfilter/$arch
3205         libavformat
3206         libavutil
3207         libavutil/$arch
3208         libpostproc
3209         libswscale
3210         libswscale/$arch
3211         tests
3212         tools
3213     "
3214     map 'mkdir -p $v' $DIRS;
3215     $ln_s "$source_path/Makefile" .
3216 fi
3217
3218 config_files="$TMPH config.mak"
3219
3220 cat > config.mak <<EOF
3221 # Automatically generated by configure - do not modify!
3222 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3223 prefix=$prefix
3224 LIBDIR=\$(DESTDIR)$libdir
3225 SHLIBDIR=\$(DESTDIR)$shlibdir
3226 INCDIR=\$(DESTDIR)$incdir
3227 BINDIR=\$(DESTDIR)$bindir
3228 DATADIR=\$(DESTDIR)$datadir
3229 MANDIR=\$(DESTDIR)$mandir
3230 SRC_PATH=$source_path
3231 CC_IDENT=$cc_ident
3232 ARCH=$arch
3233 CC=$cc
3234 AS=$as
3235 LD=$ld
3236 DEPCC=$dep_cc
3237 YASM=$yasmexe
3238 YASMDEP=$yasmexe
3239 AR=$ar
3240 RANLIB=$ranlib
3241 LN_S=$ln_s
3242 CPPFLAGS=$CPPFLAGS
3243 CFLAGS=$CFLAGS
3244 ASFLAGS=$ASFLAGS
3245 AS_O=$CC_O
3246 CC_O=$CC_O
3247 DLLTOOL=$dlltool
3248 LDFLAGS=$LDFLAGS
3249 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3250 SHFLAGS=$SHFLAGS
3251 YASMFLAGS=$YASMFLAGS
3252 BUILDSUF=$build_suffix
3253 FULLNAME=$FULLNAME
3254 LIBPREF=$LIBPREF
3255 LIBSUF=$LIBSUF
3256 LIBNAME=$LIBNAME
3257 SLIBPREF=$SLIBPREF
3258 SLIBSUF=$SLIBSUF
3259 EXESUF=$EXESUF
3260 EXTRA_VERSION=$extra_version
3261 DEPFLAGS=$DEPFLAGS
3262 CCDEP=$CCDEP
3263 ASDEP=$ASDEP
3264 CC_DEPFLAGS=$CC_DEPFLAGS
3265 AS_DEPFLAGS=$AS_DEPFLAGS
3266 HOSTCC=$host_cc
3267 HOSTCFLAGS=$host_cflags
3268 HOSTEXESUF=$HOSTEXESUF
3269 HOSTLDFLAGS=$host_ldflags
3270 HOSTLIBS=$host_libs
3271 TARGET_EXEC=$target_exec
3272 TARGET_PATH=$target_path
3273 SDL_LIBS=$sdl_libs
3274 SDL_CFLAGS=$sdl_cflags
3275 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3276 EXTRALIBS=$extralibs
3277 INSTALL=install
3278 LIBTARGET=${LIBTARGET}
3279 SLIBNAME=${SLIBNAME}
3280 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3281 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3282 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3283 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3284 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3285 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3286 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3287 EOF
3288
3289 get_version(){
3290     name=$1
3291     file=$source_path/$2
3292     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3293     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3294     lcname=$(tolower $name)
3295     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3296     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3297 }
3298
3299 get_version LIBSWSCALE  libswscale/swscale.h
3300 get_version LIBPOSTPROC libpostproc/postprocess.h
3301 get_version LIBAVCODEC  libavcodec/version.h
3302 get_version LIBAVDEVICE libavdevice/avdevice.h
3303 get_version LIBAVFORMAT libavformat/version.h
3304 get_version LIBAVUTIL   libavutil/avutil.h
3305 get_version LIBAVFILTER libavfilter/avfilter.h
3306
3307 cat > $TMPH <<EOF
3308 /* Automatically generated by configure - do not modify! */
3309 #ifndef LIBAV_CONFIG_H
3310 #define LIBAV_CONFIG_H
3311 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3312 #define LIBAV_LICENSE "$(c_escape $license)"
3313 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3314 #define CC_TYPE "$cc_type"
3315 #define CC_VERSION $cc_version
3316 #define restrict $_restrict
3317 #define EXTERN_PREFIX "${extern_prefix}"
3318 #define EXTERN_ASM ${extern_prefix}
3319 #define SLIBSUF "$SLIBSUF"
3320 EOF
3321
3322 test -n "$malloc_prefix" &&
3323     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3324
3325 if enabled small || disabled optimizations; then
3326     echo "#undef  av_always_inline"  >> $TMPH
3327     if enabled small; then
3328         echo "#define av_always_inline inline"  >> $TMPH
3329     else
3330         echo "#define av_always_inline av_unused"  >> $TMPH
3331     fi
3332 fi
3333
3334 if enabled yasm; then
3335     append config_files $TMPASM
3336     printf '' >$TMPASM
3337 fi
3338
3339 print_config ARCH_   "$config_files" $ARCH_LIST
3340 print_config HAVE_   "$config_files" $HAVE_LIST
3341 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3342                                      $CONFIG_EXTRA      \
3343                                      $DECODER_LIST      \
3344                                      $ENCODER_LIST      \
3345                                      $HWACCEL_LIST      \
3346                                      $PARSER_LIST       \
3347                                      $BSF_LIST          \
3348                                      $DEMUXER_LIST      \
3349                                      $MUXER_LIST        \
3350                                      $FILTER_LIST       \
3351                                      $PROTOCOL_LIST     \
3352                                      $INDEV_LIST        \
3353                                      $OUTDEV_LIST       \
3354
3355 cat >>config.mak <<EOF
3356 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3357 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3358 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3359 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3360 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3361 EOF
3362
3363 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3364
3365 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3366 cp_if_changed $TMPH config.h
3367 touch .config
3368
3369 enabled yasm && cp_if_changed $TMPASM config.asm
3370
3371 cat > $TMPH <<EOF
3372 /* Generated by ffconf */
3373 #ifndef AVUTIL_AVCONFIG_H
3374 #define AVUTIL_AVCONFIG_H
3375 EOF
3376
3377 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3378
3379 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3380
3381 cp_if_changed $TMPH libavutil/avconfig.h
3382
3383 test -n "$WARNINGS" && printf "\n$WARNINGS"
3384
3385 # build pkg-config files
3386
3387 pkgconfig_generate(){
3388 name=$1
3389 shortname=${name#lib}${build_suffix}
3390 comment=$2
3391 version=$3
3392 libs=$4
3393 requires=$5
3394 enabled ${name#lib} || return 0
3395 cat <<EOF > $name/$name.pc
3396 prefix=$prefix
3397 exec_prefix=\${prefix}
3398 libdir=$libdir
3399 includedir=$incdir
3400
3401 Name: $name
3402 Description: $comment
3403 Version: $version
3404 Requires: $(enabled shared || echo $requires)
3405 Requires.private: $(enabled shared && echo $requires)
3406 Conflicts:
3407 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3408 Libs.private: $(enabled shared && echo $libs)
3409 Cflags: -I\${includedir}
3410 EOF
3411 cat <<EOF > $name/$name-uninstalled.pc
3412 prefix=
3413 exec_prefix=
3414 libdir=\${pcfiledir}
3415 includedir=${source_path}
3416
3417 Name: $name
3418 Description: $comment
3419 Version: $version
3420 Requires: $requires
3421 Conflicts:
3422 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3423 Cflags: -I\${includedir}
3424 EOF
3425 }
3426
3427 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3428 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3429 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3430 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3431 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3432 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3433 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"