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