adpcm: ADPCM Electronic Arts has always two channels
[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
241 Developer options (useful when working on Libav itself):
242   --disable-debug          disable debugging symbols
243   --enable-debug=LEVEL     set the debug level [$debuglevel]
244   --disable-optimizations  disable compiler optimizations
245   --enable-extra-warnings  enable more compiler warnings
246   --samples=PATH           location of test samples for FATE, if not set use
247                            \$FATE_SAMPLES at make invocation time.
248
249 NOTE: Object files are built at the place where configure is launched.
250 EOF
251   exit 0
252 }
253
254 quotes='""'
255
256 log(){
257     echo "$@" >> $logfile
258 }
259
260 log_file(){
261     log BEGIN $1
262     pr -n -t $1 >> $logfile
263     log END $1
264 }
265
266 echolog(){
267     log "$@"
268     echo "$@"
269 }
270
271 warn(){
272     log "WARNING: $*"
273     WARNINGS="${WARNINGS}WARNING: $*\n"
274 }
275
276 die(){
277     echolog "$@"
278     cat <<EOF
279
280 If you think configure made a mistake, make sure you are using the latest
281 version from Git.  If the latest version fails, report the problem to the
282 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
283 EOF
284     if disabled logging; then
285         cat <<EOF
286 Rerun configure with logging enabled (do not use --disable-logging), and
287 include the log this produces with your report.
288 EOF
289     else
290 cat <<EOF
291 Include the log file "$logfile" produced by configure as this will help
292 solving the problem.
293 EOF
294     fi
295     exit 1
296 }
297
298 # Avoid locale weirdness, besides we really just want to translate ASCII.
299 toupper(){
300     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
301 }
302
303 tolower(){
304     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
305 }
306
307 c_escape(){
308     echo "$*" | sed 's/["\\]/\\\0/g'
309 }
310
311 sh_quote(){
312     v=$(echo "$1" | sed "s/'/'\\\\''/g")
313     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
314     echo "$v"
315 }
316
317 cleanws(){
318     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
319 }
320
321 filter(){
322     pat=$1
323     shift
324     for v; do
325         eval "case $v in $pat) echo $v ;; esac"
326     done
327 }
328
329 filter_out(){
330     pat=$1
331     shift
332     for v; do
333         eval "case $v in $pat) ;; *) echo $v ;; esac"
334     done
335 }
336
337 map(){
338     m=$1
339     shift
340     for v; do eval $m; done
341 }
342
343 set_all(){
344     value=$1
345     shift
346     for var in $*; do
347         eval $var=$value
348     done
349 }
350
351 set_weak(){
352     value=$1
353     shift
354     for var; do
355         eval : \${$var:=$value}
356     done
357 }
358
359 set_safe(){
360     var=$1
361     shift
362     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
363 }
364
365 get_safe(){
366     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
367 }
368
369 pushvar(){
370     for var in $*; do
371         eval level=\${${var}_level:=0}
372         eval ${var}_${level}="\$$var"
373         eval ${var}_level=$(($level+1))
374     done
375 }
376
377 popvar(){
378     for var in $*; do
379         eval level=\${${var}_level:-0}
380         test $level = 0 && continue
381         eval level=$(($level-1))
382         eval $var="\${${var}_${level}}"
383         eval ${var}_level=$level
384         eval unset ${var}_${level}
385     done
386 }
387
388 enable(){
389     set_all yes $*
390 }
391
392 disable(){
393     set_all no $*
394 }
395
396 enable_weak(){
397     set_weak yes $*
398 }
399
400 disable_weak(){
401     set_weak no $*
402 }
403
404 enable_safe(){
405     for var; do
406         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
407     done
408 }
409
410 disable_safe(){
411     for var; do
412         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
413     done
414 }
415
416 do_enable_deep(){
417     for var; do
418         enabled $var && continue
419         eval sel="\$${var}_select"
420         eval sgs="\$${var}_suggest"
421         pushvar var sgs
422         enable_deep $sel
423         popvar sgs
424         enable_deep_weak $sgs
425         popvar var
426     done
427 }
428
429 enable_deep(){
430     do_enable_deep $*
431     enable $*
432 }
433
434 enable_deep_weak(){
435     do_enable_deep $*
436     enable_weak $*
437 }
438
439 enabled(){
440     test "${1#!}" = "$1" && op== || op=!=
441     eval test "x\$${1#!}" $op "xyes"
442 }
443
444 disabled(){
445     test "${1#!}" = "$1" && op== || op=!=
446     eval test "x\$${1#!}" $op "xno"
447 }
448
449 enabled_all(){
450     for opt; do
451         enabled $opt || return 1
452     done
453 }
454
455 disabled_all(){
456     for opt; do
457         disabled $opt || return 1
458     done
459 }
460
461 enabled_any(){
462     for opt; do
463         enabled $opt && return 0
464     done
465 }
466
467 disabled_any(){
468     for opt; do
469         disabled $opt && return 0
470     done
471     return 1
472 }
473
474 set_default(){
475     for opt; do
476         eval : \${$opt:=\$${opt}_default}
477     done
478 }
479
480 is_in(){
481     value=$1
482     shift
483     for var in $*; do
484         [ $var = $value ] && return 0
485     done
486     return 1
487 }
488
489 check_deps(){
490     for cfg; do
491         cfg="${cfg#!}"
492         enabled ${cfg}_checking && die "Circular dependency for $cfg."
493         disabled ${cfg}_checking && continue
494         enable ${cfg}_checking
495
496         eval dep_all="\$${cfg}_deps"
497         eval dep_any="\$${cfg}_deps_any"
498         eval dep_sel="\$${cfg}_select"
499         eval dep_sgs="\$${cfg}_suggest"
500         eval dep_ifa="\$${cfg}_if"
501         eval dep_ifn="\$${cfg}_if_any"
502
503         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
504         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
505         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
506
507         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
508         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
509         enabled_all  $dep_all || disable $cfg
510         enabled_any  $dep_any || disable $cfg
511         disabled_any $dep_sel && disable $cfg
512
513         if enabled $cfg; then
514             eval dep_extralibs="\$${cfg}_extralibs"
515             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
516             enable_deep $dep_sel
517             enable_deep_weak $dep_sgs
518         fi
519
520         disable ${cfg}_checking
521     done
522 }
523
524 print_config_h(){
525     enabled $1 && v=1 || v=0
526     echo "#define $2 $v"
527 }
528
529 print_config_mak(){
530     enabled $1 && v= || v=!
531     echo "$v$2=yes"
532 }
533
534 print_config_asm(){
535     enabled $1 && echo "%define $2"
536 }
537
538 print_config(){
539     pfx=$1
540     files=$2
541     shift 2
542     for cfg; do
543         ucname="$(toupper $cfg)"
544         for f in $files; do
545             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
546         done
547     done
548 }
549
550 print_enabled(){
551     test "$1" = -n && end=" " && shift || end="\n"
552     suf=$1
553     shift
554     for v; do
555         enabled $v && printf "%s$end" ${v%$suf};
556     done
557 }
558
559 append(){
560     var=$1
561     shift
562     eval "$var=\"\$$var $*\""
563 }
564
565 prepend(){
566     var=$1
567     shift
568     eval "$var=\"$* \$$var\""
569 }
570
571 add_cppflags(){
572     append CPPFLAGS $($filter_cppflags "$@")
573 }
574
575 add_cflags(){
576     append CFLAGS $($filter_cflags "$@")
577 }
578
579 add_asflags(){
580     append ASFLAGS $($filter_asflags "$@")
581 }
582
583 add_ldflags(){
584     append LDFLAGS "$@"
585 }
586
587 add_extralibs(){
588     prepend extralibs "$@"
589 }
590
591 check_cmd(){
592     log "$@"
593     "$@" >> $logfile 2>&1
594 }
595
596 check_cc(){
597     log check_cc "$@"
598     cat > $TMPC
599     log_file $TMPC
600     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
601 }
602
603 check_cpp(){
604     log check_cpp "$@"
605     cat > $TMPC
606     log_file $TMPC
607     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
608 }
609
610 check_as(){
611     log check_as "$@"
612     cat > $TMPC
613     log_file $TMPC
614     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
615 }
616
617 check_asm(){
618     log check_asm "$@"
619     name="$1"
620     code="$2"
621     shift 2
622     disable $name
623     check_as "$@" <<EOF && enable $name
624 void foo(void){ __asm__ volatile($code); }
625 EOF
626 }
627
628 check_yasm(){
629     log check_yasm "$@"
630     echo "$1" > $TMPS
631     log_file $TMPS
632     shift 1
633     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
634 }
635
636 check_ld(){
637     log check_ld "$@"
638     flags=''
639     libs=''
640     for f; do
641         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
642     done
643     check_cc $($filter_cflags $flags) || return
644     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
645 }
646
647 check_cppflags(){
648     log check_cppflags "$@"
649     set -- $($filter_cppflags "$@")
650     check_cc "$@" <<EOF && append CPPFLAGS "$@"
651 int x;
652 EOF
653 }
654
655 check_cflags(){
656     log check_cflags "$@"
657     set -- $($filter_cflags "$@")
658     check_cc "$@" <<EOF && append CFLAGS "$@"
659 int x;
660 EOF
661 }
662
663 test_ldflags(){
664     log test_ldflags "$@"
665     check_ld "$@" <<EOF
666 int main(void){ return 0; }
667 EOF
668 }
669
670 check_ldflags(){
671     log check_ldflags "$@"
672     test_ldflags "$@" && add_ldflags "$@"
673 }
674
675 check_header(){
676     log check_header "$@"
677     header=$1
678     shift
679     disable_safe $header
680     check_cpp "$@" <<EOF && enable_safe $header
681 #include <$header>
682 int x;
683 EOF
684 }
685
686 check_func(){
687     log check_func "$@"
688     func=$1
689     shift
690     disable $func
691     check_ld "$@" <<EOF && enable $func
692 extern int $func();
693 int main(void){ $func(); }
694 EOF
695 }
696
697 check_mathfunc(){
698     log check_mathfunc "$@"
699     func=$1
700     shift
701     disable $func
702     check_ld "$@" <<EOF && enable $func
703 #include <math.h>
704 float foo(float f) { return $func(f); }
705 int main(void){ return 0; }
706 EOF
707 }
708
709 check_func_headers(){
710     log check_func_headers "$@"
711     headers=$1
712     funcs=$2
713     shift 2
714     {
715         for hdr in $headers; do
716             echo "#include <$hdr>"
717         done
718         for func in $funcs; do
719             echo "long check_$func(void) { return (long) $func; }"
720         done
721         echo "int main(void) { return 0; }"
722     } | check_ld "$@" && enable $funcs && enable_safe $headers
723 }
724
725 check_cpp_condition(){
726     log check_cpp_condition "$@"
727     header=$1
728     condition=$2
729     shift 2
730     check_cpp $($filter_cppflags "$@") <<EOF
731 #include <$header>
732 #if !($condition)
733 #error "unsatisfied condition: $condition"
734 #endif
735 EOF
736 }
737
738 check_lib(){
739     log check_lib "$@"
740     header="$1"
741     func="$2"
742     shift 2
743     check_header $header && check_func $func "$@" && add_extralibs "$@"
744 }
745
746 check_lib2(){
747     log check_lib2 "$@"
748     headers="$1"
749     funcs="$2"
750     shift 2
751     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
752 }
753
754 check_pkg_config(){
755     log check_pkg_config "$@"
756     pkg="$1"
757     headers="$2"
758     funcs="$3"
759     shift 3
760     $pkg_config --exists $pkg || return
761     pkg_cflags=$($pkg_config --cflags $pkg)
762     pkg_libs=$($pkg_config --libs $pkg)
763     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
764         set_safe ${pkg}_cflags $pkg_cflags   &&
765         set_safe ${pkg}_libs   $pkg_libs
766 }
767
768 check_exec(){
769     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
770 }
771
772 check_exec_crash(){
773     code=$(cat)
774
775     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
776     # are safe but may not be available everywhere.  Thus we use
777     # raise(SIGTERM) instead.  The check is run in a subshell so we
778     # can redirect the "Terminated" message from the shell.  SIGBUS
779     # is not defined by standard C so it is used conditionally.
780
781     (check_exec "$@") >> $logfile 2>&1 <<EOF
782 #include <signal.h>
783 static void sighandler(int sig){
784     raise(SIGTERM);
785 }
786 int main(void){
787     signal(SIGILL, sighandler);
788     signal(SIGFPE, sighandler);
789     signal(SIGSEGV, sighandler);
790 #ifdef SIGBUS
791     signal(SIGBUS, sighandler);
792 #endif
793     { $code }
794 }
795 EOF
796 }
797
798 check_type(){
799     log check_type "$@"
800     headers=$1
801     type=$2
802     shift 2
803     disable_safe "$type"
804     incs=""
805     for hdr in $headers; do
806         incs="$incs
807 #include <$hdr>"
808     done
809     check_cc "$@" <<EOF && enable_safe "$type"
810 $incs
811 $type v;
812 EOF
813 }
814
815 check_struct(){
816     log check_type "$@"
817     headers=$1
818     struct=$2
819     member=$3
820     shift 3
821     disable_safe "${struct}_${member}"
822     incs=""
823     for hdr in $headers; do
824         incs="$incs
825 #include <$hdr>"
826     done
827     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
828 $incs
829 const void *p = &(($struct *)0)->$member;
830 EOF
831 }
832
833 require(){
834     name="$1"
835     header="$2"
836     func="$3"
837     shift 3
838     check_lib $header $func "$@" || die "ERROR: $name not found"
839 }
840
841 require2(){
842     name="$1"
843     headers="$2"
844     func="$3"
845     shift 3
846     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
847 }
848
849 require_pkg_config(){
850     pkg="$1"
851     check_pkg_config "$@" || die "ERROR: $pkg not found"
852     add_cflags    $(get_safe ${pkg}_cflags)
853     add_extralibs $(get_safe ${pkg}_libs)
854 }
855
856 check_host_cc(){
857     log check_host_cc "$@"
858     cat > $TMPC
859     log_file $TMPC
860     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
861 }
862
863 check_host_cflags(){
864     log check_host_cflags "$@"
865     check_host_cc "$@" <<EOF && append host_cflags "$@"
866 int x;
867 EOF
868 }
869
870 apply(){
871     file=$1
872     shift
873     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
874 }
875
876 cp_if_changed(){
877     cmp -s "$1" "$2" &&
878         echo "$2 is unchanged" ||
879         cp -f "$1" "$2"
880 }
881
882 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
883 # system-dependent things.
884
885 COMPONENT_LIST="
886     bsfs
887     decoders
888     demuxers
889     encoders
890     filters
891     hwaccels
892     indevs
893     muxers
894     outdevs
895     parsers
896     protocols
897 "
898
899 CONFIG_LIST="
900     $COMPONENT_LIST
901     aandct
902     ac3dsp
903     avcodec
904     avdevice
905     avfilter
906     avformat
907     avisynth
908     bzlib
909     dct
910     doc
911     dwt
912     dxva2
913     fastdiv
914     ffmpeg
915     ffplay
916     ffprobe
917     ffserver
918     fft
919     frei0r
920     golomb
921     gpl
922     gray
923     h264dsp
924     h264pred
925     hardcoded_tables
926     huffman
927     libdc1394
928     libdirac
929     libfaac
930     libfreetype
931     libgsm
932     libmp3lame
933     libnut
934     libopencore_amrnb
935     libopencore_amrwb
936     libopencv
937     libopenjpeg
938     librtmp
939     libschroedinger
940     libspeex
941     libtheora
942     libvo_aacenc
943     libvo_amrwbenc
944     libvorbis
945     libvpx
946     libx264
947     libxavs
948     libxvid
949     lpc
950     lsp
951     mdct
952     memalign_hack
953     mlib
954     mpegaudiodsp
955     network
956     nonfree
957     pic
958     postproc
959     rdft
960     rtpdec
961     runtime_cpudetect
962     shared
963     sinewin
964     small
965     sram
966     static
967     swscale
968     swscale_alpha
969     vaapi
970     vdpau
971     version3
972     x11grab
973     zlib
974 "
975
976 THREADS_LIST='
977     pthreads
978     w32threads
979 '
980
981 ARCH_LIST='
982     alpha
983     arm
984     avr32
985     avr32_ap
986     avr32_uc
987     bfin
988     ia64
989     m68k
990     mips
991     mips64
992     parisc
993     ppc
994     ppc64
995     s390
996     sh4
997     sparc
998     sparc64
999     tomi
1000     x86
1001     x86_32
1002     x86_64
1003 '
1004
1005 ARCH_EXT_LIST='
1006     altivec
1007     amd3dnow
1008     amd3dnowext
1009     armv5te
1010     armv6
1011     armv6t2
1012     armvfp
1013     avx
1014     iwmmxt
1015     mmi
1016     mmx
1017     mmx2
1018     neon
1019     ppc4xx
1020     sse
1021     ssse3
1022     vfpv3
1023     vis
1024 '
1025
1026 HAVE_LIST_PUB='
1027     bigendian
1028     fast_unaligned
1029 '
1030
1031 HAVE_LIST="
1032     $ARCH_EXT_LIST
1033     $HAVE_LIST_PUB
1034     $THREADS_LIST
1035     aligned_stack
1036     alsa_asoundlib_h
1037     altivec_h
1038     arpa_inet_h
1039     attribute_may_alias
1040     attribute_packed
1041     bswap
1042     closesocket
1043     cmov
1044     dcbzl
1045     dev_bktr_ioctl_bt848_h
1046     dev_bktr_ioctl_meteor_h
1047     dev_ic_bt8xx_h
1048     dev_video_meteor_ioctl_meteor_h
1049     dev_video_bktr_ioctl_bt848_h
1050     dlfcn_h
1051     dlopen
1052     dos_paths
1053     ebp_available
1054     ebx_available
1055     exp2
1056     exp2f
1057     fast_64bit
1058     fast_clz
1059     fast_cmov
1060     fcntl
1061     fork
1062     getaddrinfo
1063     gethrtime
1064     GetProcessMemoryInfo
1065     GetProcessTimes
1066     getrusage
1067     gnu_as
1068     struct_rusage_ru_maxrss
1069     ibm_asm
1070     inet_aton
1071     inline_asm
1072     isatty
1073     ldbrx
1074     libdc1394_1
1075     libdc1394_2
1076     llrint
1077     llrintf
1078     local_aligned_16
1079     local_aligned_8
1080     localtime_r
1081     log2
1082     log2f
1083     loongson
1084     lrint
1085     lrintf
1086     lzo1x_999_compress
1087     machine_ioctl_bt848_h
1088     machine_ioctl_meteor_h
1089     malloc_h
1090     MapViewOfFile
1091     memalign
1092     mkstemp
1093     mmap
1094     pld
1095     posix_memalign
1096     round
1097     roundf
1098     sdl
1099     sdl_video_size
1100     setmode
1101     sndio_h
1102     socklen_t
1103     soundcard_h
1104     poll_h
1105     setrlimit
1106     strerror_r
1107     strtok_r
1108     struct_addrinfo
1109     struct_ipv6_mreq
1110     struct_sockaddr_in6
1111     struct_sockaddr_sa_len
1112     struct_sockaddr_storage
1113     symver
1114     symver_gnu_asm
1115     symver_asm_label
1116     sys_mman_h
1117     sys_resource_h
1118     sys_select_h
1119     sys_soundcard_h
1120     sys_videoio_h
1121     ten_operands
1122     threads
1123     trunc
1124     truncf
1125     vfp_args
1126     VirtualAlloc
1127     winsock2_h
1128     xform_asm
1129     xmm_clobbers
1130     yasm
1131 "
1132
1133 # options emitted with CONFIG_ prefix but not available on command line
1134 CONFIG_EXTRA="
1135     avutil
1136     gplv3
1137     lgplv3
1138 "
1139
1140 CMDLINE_SELECT="
1141     $ARCH_EXT_LIST
1142     $CONFIG_LIST
1143     $THREADS_LIST
1144     asm
1145     cross_compile
1146     debug
1147     extra_warnings
1148     logging
1149     optimizations
1150     symver
1151     yasm
1152 "
1153
1154 PATHS_LIST='
1155     bindir
1156     datadir
1157     incdir
1158     libdir
1159     mandir
1160     prefix
1161     shlibdir
1162 '
1163
1164 CMDLINE_SET="
1165     $PATHS_LIST
1166     ar
1167     arch
1168     as
1169     build_suffix
1170     cc
1171     cpu
1172     cross_prefix
1173     dep_cc
1174     extra_version
1175     host_cc
1176     host_cflags
1177     host_ldflags
1178     host_libs
1179     host_os
1180     ld
1181     logfile
1182     malloc_prefix
1183     nm
1184     pkg_config
1185     samples
1186     sysinclude
1187     sysroot
1188     target_exec
1189     target_os
1190     target_path
1191 "
1192
1193 CMDLINE_APPEND="
1194     extra_cflags
1195 "
1196
1197 # code dependency declarations
1198
1199 # architecture extensions
1200
1201 armv5te_deps="arm"
1202 armv6_deps="arm"
1203 armv6t2_deps="arm"
1204 armvfp_deps="arm"
1205 iwmmxt_deps="arm"
1206 neon_deps="arm"
1207 vfpv3_deps="armvfp"
1208
1209 mmi_deps="mips"
1210
1211 altivec_deps="ppc"
1212 ppc4xx_deps="ppc"
1213
1214 vis_deps="sparc"
1215
1216 x86_64_suggest="cmov fast_cmov"
1217 amd3dnow_deps="mmx"
1218 amd3dnowext_deps="amd3dnow"
1219 mmx_deps="x86"
1220 mmx2_deps="mmx"
1221 sse_deps="mmx"
1222 ssse3_deps="sse"
1223 avx_deps="ssse3"
1224
1225 aligned_stack_if_any="ppc x86"
1226 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1227 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1228 fast_unaligned_if_any="armv6 ppc x86"
1229
1230 need_memalign="altivec neon sse"
1231 inline_asm_deps="!tms470"
1232
1233 symver_if_any="symver_asm_label symver_gnu_asm"
1234
1235 # subsystems
1236 dct_select="rdft"
1237 mdct_select="fft"
1238 rdft_select="fft"
1239 mpegaudiodsp_select="dct"
1240
1241 # decoders / encoders / hardware accelerators
1242 aac_decoder_select="mdct sinewin"
1243 aac_encoder_select="mdct sinewin"
1244 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1245 ac3_decoder_select="mdct ac3dsp ac3_parser"
1246 ac3_encoder_select="mdct ac3dsp"
1247 ac3_fixed_encoder_select="mdct ac3dsp"
1248 alac_encoder_select="lpc"
1249 amrnb_decoder_select="lsp"
1250 amrwb_decoder_select="lsp"
1251 atrac1_decoder_select="mdct sinewin"
1252 atrac3_decoder_select="mdct"
1253 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1254 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1255 cavs_decoder_select="golomb"
1256 cook_decoder_select="mdct sinewin"
1257 cscd_decoder_suggest="zlib"
1258 dca_decoder_select="mdct"
1259 dnxhd_encoder_select="aandct"
1260 dxa_decoder_select="zlib"
1261 eac3_decoder_select="ac3_decoder"
1262 eac3_encoder_select="mdct ac3dsp"
1263 eamad_decoder_select="aandct"
1264 eatgq_decoder_select="aandct"
1265 eatqi_decoder_select="aandct"
1266 ffv1_decoder_select="golomb"
1267 flac_decoder_select="golomb"
1268 flac_encoder_select="golomb lpc"
1269 flashsv_decoder_select="zlib"
1270 flashsv_encoder_select="zlib"
1271 flv_decoder_select="h263_decoder"
1272 flv_encoder_select="h263_encoder"
1273 fraps_decoder_select="huffman"
1274 h261_encoder_select="aandct"
1275 h263_decoder_select="h263_parser"
1276 h263_encoder_select="aandct"
1277 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1278 h263i_decoder_select="h263_decoder"
1279 h263p_encoder_select="h263_encoder"
1280 h264_decoder_select="golomb h264dsp h264pred"
1281 h264_dxva2_hwaccel_deps="dxva2api_h"
1282 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1283 h264_vaapi_hwaccel_select="vaapi"
1284 h264_vdpau_decoder_select="vdpau h264_decoder"
1285 imc_decoder_select="fft mdct sinewin"
1286 jpegls_decoder_select="golomb"
1287 jpegls_encoder_select="golomb"
1288 ljpeg_encoder_select="aandct"
1289 loco_decoder_select="golomb"
1290 mjpeg_encoder_select="aandct"
1291 mlp_decoder_select="mlp_parser"
1292 mp1_decoder_select="mpegaudiodsp"
1293 mp2_decoder_select="mpegaudiodsp"
1294 mp3adu_decoder_select="mpegaudiodsp"
1295 mp3_decoder_select="mpegaudiodsp"
1296 mp3on4_decoder_select="mpegaudiodsp"
1297 mp1float_decoder_select="mpegaudiodsp"
1298 mp2float_decoder_select="mpegaudiodsp"
1299 mp3adufloat_decoder_select="mpegaudiodsp"
1300 mp3float_decoder_select="mpegaudiodsp"
1301 mp3on4float_decoder_select="mpegaudiodsp"
1302 mpeg1video_encoder_select="aandct"
1303 mpeg2video_encoder_select="aandct"
1304 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1305 mpeg4_encoder_select="h263_encoder"
1306 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1307 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1308 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1309 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1310 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1311 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1312 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1313 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1314 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1315 msmpeg4v1_decoder_select="h263_decoder"
1316 msmpeg4v1_encoder_select="h263_encoder"
1317 msmpeg4v2_decoder_select="h263_decoder"
1318 msmpeg4v2_encoder_select="h263_encoder"
1319 msmpeg4v3_decoder_select="h263_decoder"
1320 msmpeg4v3_encoder_select="h263_encoder"
1321 nellymoser_decoder_select="mdct sinewin"
1322 nellymoser_encoder_select="mdct sinewin"
1323 png_decoder_select="zlib"
1324 png_encoder_select="zlib"
1325 qcelp_decoder_select="lsp"
1326 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1327 ra_144_encoder_select="lpc"
1328 rv10_decoder_select="h263_decoder"
1329 rv10_encoder_select="h263_encoder"
1330 rv20_decoder_select="h263_decoder"
1331 rv20_encoder_select="h263_encoder"
1332 rv30_decoder_select="golomb h264pred"
1333 rv40_decoder_select="golomb h264pred"
1334 shorten_decoder_select="golomb"
1335 sipr_decoder_select="lsp"
1336 snow_decoder_select="dwt"
1337 snow_encoder_select="aandct dwt"
1338 svq1_encoder_select="aandct"
1339 svq3_decoder_select="golomb h264dsp h264pred"
1340 svq3_decoder_suggest="zlib"
1341 theora_decoder_select="vp3_decoder"
1342 tiff_decoder_suggest="zlib"
1343 tiff_encoder_suggest="zlib"
1344 truehd_decoder_select="mlp_decoder"
1345 tscc_decoder_select="zlib"
1346 twinvq_decoder_select="mdct lsp sinewin"
1347 vc1_decoder_select="h263_decoder"
1348 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1349 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1350 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1351 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1352 vorbis_decoder_select="mdct"
1353 vorbis_encoder_select="mdct"
1354 vp6_decoder_select="huffman"
1355 vp6a_decoder_select="vp6_decoder"
1356 vp6f_decoder_select="vp6_decoder"
1357 vp8_decoder_select="h264pred"
1358 wmapro_decoder_select="mdct sinewin"
1359 wmav1_decoder_select="mdct sinewin"
1360 wmav1_encoder_select="mdct sinewin"
1361 wmav2_decoder_select="mdct sinewin"
1362 wmav2_encoder_select="mdct sinewin"
1363 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1364 wmv1_decoder_select="h263_decoder"
1365 wmv1_encoder_select="h263_encoder"
1366 wmv2_decoder_select="h263_decoder"
1367 wmv2_encoder_select="h263_encoder"
1368 wmv3_decoder_select="vc1_decoder"
1369 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1370 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1371 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1372 zlib_decoder_select="zlib"
1373 zlib_encoder_select="zlib"
1374 zmbv_decoder_select="zlib"
1375 zmbv_encoder_select="zlib"
1376
1377 vaapi_deps="va_va_h"
1378 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1379
1380 # parsers
1381 h264_parser_select="golomb h264dsp h264pred"
1382
1383 # external libraries
1384 libdirac_decoder_deps="libdirac !libschroedinger"
1385 libdirac_encoder_deps="libdirac"
1386 libfaac_encoder_deps="libfaac"
1387 libgsm_decoder_deps="libgsm"
1388 libgsm_encoder_deps="libgsm"
1389 libgsm_ms_decoder_deps="libgsm"
1390 libgsm_ms_encoder_deps="libgsm"
1391 libmp3lame_encoder_deps="libmp3lame"
1392 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1393 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1394 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1395 libopenjpeg_decoder_deps="libopenjpeg"
1396 libschroedinger_decoder_deps="libschroedinger"
1397 libschroedinger_encoder_deps="libschroedinger"
1398 libspeex_decoder_deps="libspeex"
1399 libtheora_encoder_deps="libtheora"
1400 libvo_aacenc_encoder_deps="libvo_aacenc"
1401 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1402 libvorbis_encoder_deps="libvorbis"
1403 libvpx_decoder_deps="libvpx"
1404 libvpx_encoder_deps="libvpx"
1405 libx264_encoder_deps="libx264"
1406 libxavs_encoder_deps="libxavs"
1407 libxvid_encoder_deps="libxvid"
1408
1409 # demuxers / muxers
1410 ac3_demuxer_select="ac3_parser"
1411 asf_stream_muxer_select="asf_muxer"
1412 avisynth_demuxer_deps="avisynth"
1413 dirac_demuxer_select="dirac_parser"
1414 eac3_demuxer_select="ac3_parser"
1415 flac_demuxer_select="flac_parser"
1416 ipod_muxer_select="mov_muxer"
1417 libnut_demuxer_deps="libnut"
1418 libnut_muxer_deps="libnut"
1419 matroska_audio_muxer_select="matroska_muxer"
1420 matroska_demuxer_suggest="zlib bzlib"
1421 mov_demuxer_suggest="zlib"
1422 mp3_demuxer_select="mpegaudio_parser"
1423 mp4_muxer_select="mov_muxer"
1424 mpegtsraw_demuxer_select="mpegts_demuxer"
1425 mxf_d10_muxer_select="mxf_muxer"
1426 ogg_demuxer_select="golomb"
1427 psp_muxer_select="mov_muxer"
1428 rtp_demuxer_select="sdp_demuxer"
1429 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1430 rtsp_demuxer_select="http_protocol rtpdec"
1431 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1432 sap_demuxer_select="sdp_demuxer"
1433 sap_muxer_select="rtp_muxer rtp_protocol"
1434 sdp_demuxer_select="rtpdec"
1435 spdif_muxer_select="aac_parser"
1436 tg2_muxer_select="mov_muxer"
1437 tgp_muxer_select="mov_muxer"
1438 w64_demuxer_deps="wav_demuxer"
1439
1440 # indevs / outdevs
1441 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1442 alsa_outdev_deps="alsa_asoundlib_h"
1443 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1444 dv1394_indev_deps="dv1394 dv_demuxer"
1445 fbdev_indev_deps="linux_fb_h"
1446 jack_indev_deps="jack_jack_h"
1447 libdc1394_indev_deps="libdc1394"
1448 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1449 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1450 sndio_indev_deps="sndio_h"
1451 sndio_outdev_deps="sndio_h"
1452 v4l_indev_deps="linux_videodev_h"
1453 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1454 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1455 vfwcap_indev_extralibs="-lavicap32"
1456 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1457 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1458
1459 # protocols
1460 gopher_protocol_deps="network"
1461 http_protocol_deps="network"
1462 http_protocol_select="tcp_protocol"
1463 mmsh_protocol_select="http_protocol"
1464 mmst_protocol_deps="network"
1465 rtmp_protocol_select="tcp_protocol"
1466 rtp_protocol_select="udp_protocol"
1467 tcp_protocol_deps="network"
1468 udp_protocol_deps="network"
1469
1470 # filters
1471 blackframe_filter_deps="gpl"
1472 cropdetect_filter_deps="gpl"
1473 drawtext_filter_deps="libfreetype"
1474 frei0r_filter_deps="frei0r dlopen strtok_r"
1475 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1476 hqdn3d_filter_deps="gpl"
1477 ocv_filter_deps="libopencv"
1478 scale_filter_deps="swscale"
1479 yadif_filter_deps="gpl"
1480
1481 # libraries
1482 avdevice_deps="avcodec avformat"
1483 avformat_deps="avcodec"
1484 postproc_deps="gpl"
1485
1486 # programs
1487 ffmpeg_deps="avcodec avformat swscale"
1488 ffmpeg_select="buffer_filter"
1489 ffplay_deps="avcodec avformat swscale sdl"
1490 ffplay_select="rdft"
1491 ffprobe_deps="avcodec avformat"
1492 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1493 ffserver_extralibs='$ldl'
1494
1495 doc_deps="texi2html"
1496
1497 # tests
1498
1499 test_deps(){
1500     suf1=$1
1501     suf2=$2
1502     shift 2
1503     for v; do
1504         dep=${v%=*}
1505         tests=${v#*=}
1506         for name in ${tests}; do
1507             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1508         done
1509     done
1510 }
1511
1512 set_ne_test_deps(){
1513     eval ${1}_be_test_deps="bigendian"
1514     eval ${1}_le_test_deps="!bigendian"
1515 }
1516
1517 mxf_d10_test_deps="avfilter"
1518 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1519
1520 test_deps _encoder _decoder                                             \
1521     adpcm_g726=g726                                                     \
1522     adpcm_ima_qt                                                        \
1523     adpcm_ima_wav                                                       \
1524     adpcm_ms                                                            \
1525     adpcm_swf                                                           \
1526     adpcm_yamaha=adpcm_yam                                              \
1527     alac                                                                \
1528     asv1                                                                \
1529     asv2                                                                \
1530     bmp                                                                 \
1531     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1532     dvvideo="dv dv50"                                                   \
1533     ffv1                                                                \
1534     flac                                                                \
1535     flashsv                                                             \
1536     flv                                                                 \
1537     gif                                                                 \
1538     h261                                                                \
1539     h263="h263 h263p"                                                   \
1540     huffyuv                                                             \
1541     jpegls                                                              \
1542     mjpeg="jpg mjpeg ljpeg"                                             \
1543     mp2                                                                 \
1544     mpeg1video="mpeg mpeg1b"                                            \
1545     mpeg2video="mpeg2 mpeg2thread"                                      \
1546     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1547     msmpeg4v3=msmpeg4                                                   \
1548     msmpeg4v2                                                           \
1549     pbm=pbmpipe                                                         \
1550     pcx                                                                 \
1551     pgm="pgm pgmpipe"                                                   \
1552     png                                                                 \
1553     ppm="ppm ppmpipe"                                                   \
1554     rawvideo="rgb yuv"                                                  \
1555     roq                                                                 \
1556     rv10                                                                \
1557     rv20                                                                \
1558     sgi                                                                 \
1559     snow="snow snowll"                                                  \
1560     svq1                                                                \
1561     targa=tga                                                           \
1562     tiff                                                                \
1563     wmav1                                                               \
1564     wmav2                                                               \
1565     wmv1                                                                \
1566     wmv2                                                                \
1567
1568 test_deps _muxer _demuxer                                               \
1569     aiff                                                                \
1570     pcm_alaw=alaw                                                       \
1571     asf                                                                 \
1572     au                                                                  \
1573     avi                                                                 \
1574     dv=dv_fmt                                                           \
1575     ffm                                                                 \
1576     flv=flv_fmt                                                         \
1577     gxf                                                                 \
1578     matroska=mkv                                                        \
1579     mmf                                                                 \
1580     mov                                                                 \
1581     pcm_mulaw=mulaw                                                     \
1582     mxf="mxf mxf_d10"                                                   \
1583     nut                                                                 \
1584     ogg                                                                 \
1585     rawvideo=pixfmt                                                     \
1586     rm                                                                  \
1587     swf                                                                 \
1588     mpegts=ts                                                           \
1589     voc                                                                 \
1590     wav                                                                 \
1591     yuv4mpegpipe=yuv4mpeg                                               \
1592
1593 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1594 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1595
1596 set_ne_test_deps pixdesc
1597 set_ne_test_deps pixfmts_copy
1598 set_ne_test_deps pixfmts_crop
1599 set_ne_test_deps pixfmts_hflip
1600 set_ne_test_deps pixfmts_null
1601 set_ne_test_deps pixfmts_pad
1602 set_ne_test_deps pixfmts_scale
1603 set_ne_test_deps pixfmts_vflip
1604
1605 # default parameters
1606
1607 logfile="config.log"
1608
1609 # installation paths
1610 prefix_default="/usr/local"
1611 bindir_default='${prefix}/bin'
1612 datadir_default='${prefix}/share/ffmpeg'
1613 incdir_default='${prefix}/include'
1614 libdir_default='${prefix}/lib'
1615 mandir_default='${prefix}/share/man'
1616 shlibdir_default="$libdir_default"
1617
1618 # toolchain
1619 ar_default="ar"
1620 cc_default="gcc"
1621 cc_version=\"unknown\"
1622 host_cc_default="gcc"
1623 ln_s="ln -sf"
1624 nm_default="nm"
1625 objformat="elf"
1626 pkg_config_default=pkg-config
1627 ranlib="ranlib"
1628 yasmexe="yasm"
1629 nogas=":"
1630
1631 nm_opts='-g'
1632
1633 # machine
1634 arch_default=$(uname -m)
1635 cpu="generic"
1636
1637 # OS
1638 target_os_default=$(tolower $(uname -s))
1639 host_os=$target_os_default
1640
1641 # configurable options
1642 enable avcodec
1643 enable avdevice
1644 enable avfilter
1645 enable avformat
1646 enable avutil
1647 enable asm
1648 enable debug
1649 enable doc
1650 enable fastdiv
1651 enable ffmpeg
1652 enable ffplay
1653 enable ffprobe
1654 enable ffserver
1655 enable network
1656 enable optimizations
1657 enable postproc
1658 enable protocols
1659 enable static
1660 enable swscale
1661 enable swscale_alpha
1662
1663 # build settings
1664 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1665 FFSERVERLDFLAGS=-Wl,-E
1666 LIBPREF="lib"
1667 LIBSUF=".a"
1668 FULLNAME='$(NAME)$(BUILDSUF)'
1669 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1670 SLIBPREF="lib"
1671 SLIBSUF=".so"
1672 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1673 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1674 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1675 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1676
1677 CC_O='-o $@'
1678
1679 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1680 host_libs='-lm'
1681
1682 target_path='$(CURDIR)'
1683
1684 # since the object filename is not given with the -MM flag, the compiler
1685 # is only able to print the basename, and we must add the path ourselves
1686 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1687 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1688
1689 # find source path
1690 if test -f configure; then
1691     source_path="$(pwd)"
1692     disable source_path_used
1693 else
1694     source_path=$(cd $(dirname "$0"); pwd)
1695     enable source_path_used
1696     echo "$source_path" | grep -q '[[:blank:]]' &&
1697         die "Out of tree builds are impossible with whitespace in source path."
1698     test -e "$source_path/config.h" &&
1699         die "Out of tree builds are impossible with config.h in source dir."
1700 fi
1701
1702 for v in "$@"; do
1703     r=${v#*=}
1704     l=${v%"$r"}
1705     r=$(sh_quote "$r")
1706     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1707 done
1708
1709 find_things(){
1710     thing=$1
1711     pattern=$2
1712     file=$source_path/$3
1713     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1714 }
1715
1716 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1717 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1718 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1719 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1720 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1721 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1722 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1723 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1724 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1725 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1726 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1727
1728 find_tests(){
1729     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1730 }
1731
1732 ACODEC_TESTS=$(find_tests acodec)
1733 VCODEC_TESTS=$(find_tests vsynth1)
1734 LAVF_TESTS=$(find_tests lavf)
1735 LAVFI_TESTS=$(find_tests lavfi)
1736 SEEK_TESTS=$(find_tests seek seek_)
1737
1738 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1739
1740 for n in $COMPONENT_LIST; do
1741     v=$(toupper ${n%s})_LIST
1742     eval enable \$$v
1743     eval ${n}_if_any="\$$v"
1744 done
1745
1746 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1747
1748 die_unknown(){
1749     echo "Unknown option \"$1\"."
1750     echo "See $0 --help for available options."
1751     exit 1
1752 }
1753
1754 show_list() {
1755     suffix=_$1
1756     shift
1757     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1758     exit 0
1759 }
1760
1761 for opt do
1762     optval="${opt#*=}"
1763     case "$opt" in
1764     --extra-ldflags=*) add_ldflags $optval
1765     ;;
1766     --extra-libs=*) add_extralibs $optval
1767     ;;
1768     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1769     ;;
1770     --enable-debug=*) debuglevel="$optval"
1771     ;;
1772     --disable-everything)
1773     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1774     ;;
1775     --enable-*=*|--disable-*=*)
1776     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1777     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1778     eval list=\$$(toupper $thing)_LIST
1779     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1780     $action $(filter "$name" $list)
1781     ;;
1782     --enable-?*|--disable-?*)
1783     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1784     if is_in $option $COMPONENT_LIST; then
1785         test $action = disable && action=unset
1786         eval $action \$$(toupper ${option%s})_LIST
1787     elif is_in $option $CMDLINE_SELECT; then
1788         $action $option
1789     else
1790         die_unknown $opt
1791     fi
1792     ;;
1793     --list-*)
1794         NAME="${opt#--list-}"
1795         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1796         NAME=${NAME%s}
1797         eval show_list $NAME \$$(toupper $NAME)_LIST
1798     ;;
1799     --help|-h) show_help
1800     ;;
1801     *)
1802     optname="${opt%%=*}"
1803     optname="${optname#--}"
1804     optname=$(echo "$optname" | sed 's/-/_/g')
1805     if is_in $optname $CMDLINE_SET; then
1806         eval $optname='$optval'
1807     elif is_in $optname $CMDLINE_APPEND; then
1808         append $optname "$optval"
1809     else
1810          die_unknown $opt
1811     fi
1812     ;;
1813     esac
1814 done
1815
1816 disabled logging && logfile=/dev/null
1817
1818 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1819 set >> $logfile
1820
1821 test -n "$cross_prefix" && enable cross_compile
1822
1823 if enabled cross_compile; then
1824     test -n "$arch" && test -n "$target_os" ||
1825         die "Must specify target arch and OS when cross-compiling"
1826 fi
1827
1828 set_default arch target_os
1829
1830 ar_default="${cross_prefix}${ar_default}"
1831 cc_default="${cross_prefix}${cc_default}"
1832 nm_default="${cross_prefix}${nm_default}"
1833 pkg_config_default="${cross_prefix}${pkg_config_default}"
1834 ranlib="${cross_prefix}${ranlib}"
1835
1836 sysinclude_default="${sysroot}/usr/include"
1837
1838 set_default cc nm pkg_config sysinclude
1839 enabled cross_compile || host_cc_default=$cc
1840 set_default host_cc
1841
1842 if ! $pkg_config --version >/dev/null 2>&1; then
1843     warn "$pkg_config not found, library detection may fail."
1844     pkg_config=false
1845 fi
1846
1847 exesuf() {
1848     case $1 in
1849         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1850     esac
1851 }
1852
1853 EXESUF=$(exesuf $target_os)
1854 HOSTEXESUF=$(exesuf $host_os)
1855
1856 # set temporary file name
1857 : ${TMPDIR:=$TEMPDIR}
1858 : ${TMPDIR:=$TMP}
1859 : ${TMPDIR:=/tmp}
1860
1861 if ! check_cmd mktemp -u XXXXXX; then
1862     # simple replacement for missing mktemp
1863     # NOT SAFE FOR GENERAL USE
1864     mktemp(){
1865         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1866     }
1867 fi
1868
1869 tmpfile(){
1870     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1871         (set -C; exec > $tmp) 2>/dev/null ||
1872         die "Unable to create temporary file in $TMPDIR."
1873     append TMPFILES $tmp
1874     eval $1=$tmp
1875 }
1876
1877 trap 'rm -f -- $TMPFILES' EXIT
1878
1879 tmpfile TMPC  .c
1880 tmpfile TMPE  $EXESUF
1881 tmpfile TMPH  .h
1882 tmpfile TMPO  .o
1883 tmpfile TMPS  .S
1884 tmpfile TMPV  .ver
1885 tmpfile TMPSH .sh
1886 tmpfile TMPASM .asm
1887
1888 unset -f mktemp
1889
1890 chmod +x $TMPE
1891
1892 # make sure we can execute files in $TMPDIR
1893 cat > $TMPSH 2>> $logfile <<EOF
1894 #! /bin/sh
1895 EOF
1896 chmod +x $TMPSH >> $logfile 2>&1
1897 if ! $TMPSH >> $logfile 2>&1; then
1898     cat <<EOF
1899 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1900 variable to another directory and make sure that it is not mounted noexec.
1901 EOF
1902     die "Sanity test failed."
1903 fi
1904
1905 filter_cflags=echo
1906 filter_cppflags=echo
1907 filter_asflags=echo
1908
1909 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1910     cc_type=llvm_gcc
1911     cc_version=__VERSION__
1912     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1913     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1914     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1915     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1916     speed_cflags='-O3'
1917     size_cflags='-Os'
1918 elif $cc -v 2>&1 | grep -qi ^gcc; then
1919     cc_type=gcc
1920     cc_version=__VERSION__
1921     gcc_version=$($cc --version | head -n1)
1922     gcc_basever=$($cc -dumpversion)
1923     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1924     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1925     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1926     if ! $cc -dumpversion | grep -q '^2\.'; then
1927         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1928         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1929     fi
1930     speed_cflags='-O3'
1931     size_cflags='-Os'
1932 elif $cc --version 2>/dev/null | grep -q Intel; then
1933     cc_type=icc
1934     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1935     cc_ident=$($cc --version | head -n1)
1936     icc_version=$($cc -dumpversion)
1937     CC_DEPFLAGS='-MMD'
1938     AS_DEPFLAGS='-MMD'
1939     speed_cflags='-O3'
1940     size_cflags='-Os'
1941     noopt_cflags='-O1'
1942 elif $cc -v 2>&1 | grep -q xlc; then
1943     cc_type=xlc
1944     cc_version="AV_STRINGIFY(__IBMC__)"
1945     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1946     speed_cflags='-O5'
1947     size_cflags='-O5 -qcompact'
1948 elif $cc -V 2>/dev/null | grep -q Compaq; then
1949     cc_type=ccc
1950     cc_version="AV_STRINGIFY(__DECC_VER)"
1951     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1952     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1953     debuglevel=3
1954     add_ldflags -Wl,-z,now # calls to libots crash without this
1955     speed_cflags='-fast'
1956     size_cflags='-O1'
1957 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1958     test -d "$sysroot" || die "No valid sysroot specified."
1959     cc_type=armcc
1960     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1961     cc_ident=$($cc --vsn | head -n1)
1962     armcc_conf="$PWD/armcc.conf"
1963     $cc --arm_linux_configure                 \
1964         --arm_linux_config_file="$armcc_conf" \
1965         --configure_sysroot="$sysroot"        \
1966         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1967         die "Error creating armcc configuration file."
1968     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1969     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1970     as_default="${cross_prefix}gcc"
1971     CC_DEPFLAGS='-MMD'
1972     AS_DEPFLAGS='-MMD'
1973     speed_cflags='-O3'
1974     size_cflags='-Os'
1975     filter_asflags="filter_out -W${armcc_opt}*"
1976 elif $cc -version 2>/dev/null | grep -q TMS470; then
1977     cc_type=tms470
1978     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1979     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1980     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1981     CC_O='-fr=$(@D)'
1982     as_default="${cross_prefix}gcc"
1983     ld_default="${cross_prefix}gcc"
1984     TMPO=$(basename $TMPC .c).o
1985     append TMPFILES $TMPO
1986     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1987     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1988     AS_DEPFLAGS='-MMD'
1989     speed_cflags='-O3 -mf=5'
1990     size_cflags='-O3 -mf=2'
1991     filter_cflags=tms470_flags
1992     tms470_flags(){
1993         for flag; do
1994             case $flag in
1995                 -march=*|-mcpu=*)
1996                     case "${flag#*=}" in
1997                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1998                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1999                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2000                         armv6*|arm11*)          echo -mv=6   ;;
2001                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2002                                                 echo -mv=5e  ;;
2003                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2004                     esac
2005                     ;;
2006                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2007                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2008                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2009                 -msoft-float)   echo --float_support=vfplib       ;;
2010                 -O[0-3]|-mf=*)  echo $flag                        ;;
2011                 -g)             echo -g -mn                       ;;
2012                 -pds=*)         echo $flag                        ;;
2013             esac
2014         done
2015     }
2016 elif $cc -v 2>&1 | grep -q clang; then
2017     cc_type=clang
2018     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2019         cc_version=__clang_version__ || cc_version=__VERSION__
2020     cc_ident=$($cc --version | head -n1)
2021     CC_DEPFLAGS='-MMD'
2022     AS_DEPFLAGS='-MMD'
2023     speed_cflags='-O3'
2024     size_cflags='-Os'
2025 elif $cc -V 2>&1 | grep -q Sun; then
2026     cc_type=suncc
2027     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2028     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2029     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2030     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2031     speed_cflags='-O5'
2032     size_cflags='-O5 -xspace'
2033     filter_cflags=suncc_flags
2034     suncc_flags(){
2035         for flag; do
2036             case $flag in
2037                 -march=*|-mcpu=*)
2038                     case "${flag#*=}" in
2039                         native)                   echo -xtarget=native       ;;
2040                         v9|niagara)               echo -xarch=sparc          ;;
2041                         ultrasparc)               echo -xarch=sparcvis       ;;
2042                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2043                         i586|pentium)             echo -xchip=pentium        ;;
2044                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2045                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2046                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2047                         pentium4*)          echo -xtarget=pentium4           ;;
2048                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2049                         *-sse3)             echo -xarch=sse3                 ;;
2050                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2051                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2052                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2053                         k8|opteron|athlon64|athlon-fx)
2054                                                   echo -xarch=sse2a          ;;
2055                         athlon*)                  echo -xarch=pentium_proa   ;;
2056                     esac
2057                     ;;
2058                 -std=c99)             echo -xc99              ;;
2059                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2060                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2061                 -W*,*)                echo $flag              ;;
2062                 -f*-*|-W*)                                    ;;
2063                 *)                    echo $flag              ;;
2064             esac
2065         done
2066     }
2067 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2068     cc_type=pathscale
2069     cc_version=__PATHSCALE__
2070     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2071     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2072     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2073     speed_cflags='-O2'
2074     size_cflags='-Os'
2075     filter_cflags='filter_out -Wdisabled-optimization'
2076 elif $cc -v 2>&1 | grep -q Open64; then
2077     cc_type=open64
2078     cc_version=__OPEN64__
2079     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2080     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2081     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2082     speed_cflags='-O2'
2083     size_cflags='-Os'
2084     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2085 fi
2086
2087 test -n "$cc_type" && enable $cc_type ||
2088     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2089
2090 : ${as_default:=$cc}
2091 : ${dep_cc_default:=$cc}
2092 : ${ld_default:=$cc}
2093 set_default ar as dep_cc ld
2094
2095 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2096 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2097
2098 add_cflags $extra_cflags
2099 add_asflags $extra_cflags
2100
2101 if test -n "$sysroot"; then
2102     case "$cc_type" in
2103         gcc|llvm_gcc|clang)
2104             add_cppflags --sysroot="$sysroot"
2105             add_ldflags --sysroot="$sysroot"
2106         ;;
2107         tms470)
2108             add_cppflags -I"$sysinclude"
2109             add_ldflags  --sysroot="$sysroot"
2110         ;;
2111     esac
2112 fi
2113
2114 if test "$cpu" = host; then
2115     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2116
2117     case "$cc_type" in
2118         gcc|llvm_gcc)
2119             check_native(){
2120                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2121                 sed -n "/$1=/{
2122                             s/.*$1=\\([^ ]*\\).*/\\1/
2123                             p
2124                             q
2125                         }" $TMPE
2126             }
2127             cpu=$(check_native -march || check_native -mcpu)
2128         ;;
2129     esac
2130
2131     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2132 fi
2133
2134 # Deal with common $arch aliases
2135 case "$arch" in
2136     arm*)
2137         arch="arm"
2138     ;;
2139     mips|mipsel|IP*)
2140         arch="mips"
2141     ;;
2142     mips64*)
2143         arch="mips"
2144         subarch="mips64"
2145     ;;
2146     parisc|hppa)
2147         arch="parisc"
2148     ;;
2149     parisc64|hppa64)
2150         arch="parisc"
2151         subarch="parisc64"
2152     ;;
2153     "Power Macintosh"|ppc|powerpc)
2154         arch="ppc"
2155     ;;
2156     ppc64|powerpc64)
2157         arch="ppc"
2158         subarch="ppc64"
2159     ;;
2160     s390|s390x)
2161         arch="s390"
2162     ;;
2163     sh4|sh)
2164         arch="sh4"
2165     ;;
2166     sun4u|sparc64)
2167         arch="sparc"
2168         subarch="sparc64"
2169     ;;
2170     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2171         arch="x86"
2172     ;;
2173 esac
2174
2175 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2176 enable $arch
2177
2178 # Add processor-specific flags
2179 if test "$cpu" = generic; then
2180     : do nothing
2181 elif enabled ppc; then
2182
2183     case $(tolower $cpu) in
2184         601|ppc601|powerpc601)
2185             cpuflags="-mcpu=601"
2186             disable altivec
2187         ;;
2188         603*|ppc603*|powerpc603*)
2189             cpuflags="-mcpu=603"
2190             disable altivec
2191         ;;
2192         604*|ppc604*|powerpc604*)
2193             cpuflags="-mcpu=604"
2194             disable altivec
2195         ;;
2196         g3|75*|ppc75*|powerpc75*)
2197             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2198             disable altivec
2199         ;;
2200         g4|745*|ppc745*|powerpc745*)
2201             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2202         ;;
2203         74*|ppc74*|powerpc74*)
2204             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2205         ;;
2206         g5|970|ppc970|powerpc970|power4*)
2207             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2208         ;;
2209         cell)
2210             cpuflags="-mcpu=cell"
2211             enable ldbrx
2212         ;;
2213         e500v2)
2214             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2215             disable altivec
2216         ;;
2217         e500)
2218             cpuflags="-mcpu=8540 -mhard-float"
2219             disable altivec
2220         ;;
2221     esac
2222
2223 elif enabled x86; then
2224
2225     case $cpu in
2226         i[345]86|pentium)
2227             cpuflags="-march=$cpu"
2228             disable mmx
2229         ;;
2230         # targets that do NOT support conditional mov (cmov)
2231         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2232             cpuflags="-march=$cpu"
2233             disable cmov
2234         ;;
2235         # targets that do support conditional mov (cmov)
2236         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2237             cpuflags="-march=$cpu"
2238             enable cmov
2239             enable fast_cmov
2240         ;;
2241         # targets that do support conditional mov but on which it's slow
2242         pentium4|pentium4m|prescott|nocona)
2243             cpuflags="-march=$cpu"
2244             enable cmov
2245             disable fast_cmov
2246         ;;
2247     esac
2248
2249 elif enabled sparc; then
2250
2251     case $cpu in
2252         niagara)
2253             cpuflags="-mcpu=$cpu"
2254             disable vis
2255         ;;
2256         sparc64)
2257             cpuflags="-mcpu=v9"
2258         ;;
2259     esac
2260
2261 elif enabled arm; then
2262
2263     case $cpu in
2264         armv*)
2265             cpuflags="-march=$cpu"
2266             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2267         ;;
2268         *)
2269             cpuflags="-mcpu=$cpu"
2270             case $cpu in
2271                 cortex-a*)                               subarch=armv7a  ;;
2272                 cortex-r*)                               subarch=armv7r  ;;
2273                 cortex-m*)                               subarch=armv7m  ;;
2274                 arm11*)                                  subarch=armv6   ;;
2275                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2276                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2277             esac
2278         ;;
2279     esac
2280
2281 elif enabled alpha; then
2282
2283     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2284
2285 elif enabled bfin; then
2286
2287     cpuflags="-mcpu=$cpu"
2288
2289 elif enabled mips; then
2290
2291     cpuflags="-march=$cpu"
2292
2293 elif enabled avr32; then
2294
2295     case $cpu in
2296         ap7[02]0[0-2])
2297             subarch="avr32_ap"
2298             cpuflags="-mpart=$cpu"
2299         ;;
2300         ap)
2301             subarch="avr32_ap"
2302             cpuflags="-march=$cpu"
2303         ;;
2304         uc3[ab]*)
2305             subarch="avr32_uc"
2306             cpuflags="-mcpu=$cpu"
2307         ;;
2308         uc)
2309             subarch="avr32_uc"
2310             cpuflags="-march=$cpu"
2311         ;;
2312     esac
2313
2314 fi
2315
2316 add_cflags $cpuflags
2317 add_asflags $cpuflags
2318
2319 # compiler sanity check
2320 check_exec <<EOF
2321 int main(void){ return 0; }
2322 EOF
2323 if test "$?" != 0; then
2324     echo "$cc is unable to create an executable file."
2325     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2326         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2327         echo "Only do this if you know what cross compiling means."
2328     fi
2329     die "C compiler test failed."
2330 fi
2331
2332 add_cppflags -D_ISOC99_SOURCE
2333 check_cflags -std=c99
2334 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2335 #include <stdlib.h>
2336 EOF
2337 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2338 #include <stdlib.h>
2339 EOF
2340
2341 check_host_cflags -std=c99
2342 check_host_cflags -Wall
2343
2344 case "$arch" in
2345     alpha|ia64|mips|parisc|sparc)
2346         spic=$shared
2347     ;;
2348     x86)
2349         subarch="x86_32"
2350         check_cc <<EOF && subarch="x86_64"
2351         int test[(int)sizeof(char*) - 7];
2352 EOF
2353         if test "$subarch" = "x86_64"; then
2354             spic=$shared
2355         fi
2356     ;;
2357 esac
2358
2359 enable $subarch
2360 enabled spic && enable pic
2361
2362 # OS specific
2363 case $target_os in
2364     haiku)
2365         prefix_default="/boot/common"
2366         network_extralibs="-lnetwork"
2367         host_libs=
2368         ;;
2369     sunos)
2370         FFSERVERLDFLAGS=""
2371         SHFLAGS='-shared -Wl,-h,$$(@F)'
2372         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2373         network_extralibs="-lsocket -lnsl"
2374         add_cppflags -D__EXTENSIONS__
2375         nm_opts='-P -g'
2376         ;;
2377     netbsd)
2378         disable symver
2379         oss_indev_extralibs="-lossaudio"
2380         oss_outdev_extralibs="-lossaudio"
2381         ;;
2382     openbsd)
2383         enable malloc_aligned
2384         # On OpenBSD 4.5. the compiler does not use PIC unless
2385         # explicitly using -fPIC. Libav builds fine without PIC,
2386         # however the generated executable will not do anything
2387         # (simply quits with exit-code 1, no crash, no output).
2388         # Thus explicitly enable PIC here.
2389         enable pic
2390         disable symver
2391         SHFLAGS='-shared'
2392         oss_indev_extralibs="-lossaudio"
2393         oss_outdev_extralibs="-lossaudio"
2394         ;;
2395     dragonfly)
2396         enable malloc_aligned
2397         disable symver
2398         ;;
2399     freebsd)
2400         enable malloc_aligned
2401         ;;
2402     bsd/os)
2403         add_extralibs -lpoll -lgnugetopt
2404         ;;
2405     darwin)
2406         enable malloc_aligned
2407         gas="gas-preprocessor.pl $cc"
2408         enabled ppc && add_asflags -force_cpusubtype_ALL
2409         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2410         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2411         add_ldflags -Wl,-dynamic,-search_paths_first
2412         SLIBSUF=".dylib"
2413         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2414         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2415         FFSERVERLDFLAGS=-Wl,-bind_at_load
2416         objformat="macho"
2417         enabled x86_64 && objformat="macho64"
2418         enabled_any pic shared ||
2419             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2420         ;;
2421     mingw32*)
2422         if test $target_os = "mingw32ce"; then
2423             disable network
2424         else
2425             target_os=mingw32
2426         fi
2427         LIBTARGET=i386
2428         if enabled x86_64; then
2429             enable malloc_aligned
2430             LIBTARGET="i386:x86-64"
2431         elif enabled arm; then
2432             LIBTARGET=arm-wince
2433         fi
2434         shlibdir_default="$bindir_default"
2435         SLIBPREF=""
2436         SLIBSUF=".dll"
2437         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2438         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2439         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2440         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2441             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2442             install -d "$(LIBDIR)"; \
2443             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2444         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2445         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'
2446         objformat="win32"
2447         dlltool="${cross_prefix}dlltool"
2448         enable dos_paths
2449         check_cflags -fno-common
2450         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2451                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2452                 die "ERROR: MinGW runtime version must be >= 3.15."
2453         add_cppflags -U__STRICT_ANSI__
2454         ;;
2455     cygwin*)
2456         target_os=cygwin
2457         shlibdir_default="$bindir_default"
2458         SLIBPREF="cyg"
2459         SLIBSUF=".dll"
2460         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2461         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2462         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2463         objformat="win32"
2464         enable dos_paths
2465         check_cflags -fno-common
2466         add_cppflags -U__STRICT_ANSI__
2467         ;;
2468     *-dos|freedos|opendos)
2469         network_extralibs="-lsocket"
2470         objformat="coff"
2471         enable dos_paths
2472         add_cppflags -U__STRICT_ANSI__
2473         ;;
2474     linux)
2475         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2476         enable dv1394
2477         ;;
2478     irix*)
2479         target_os=irix
2480         ranlib="echo ignoring ranlib"
2481         ;;
2482     os/2*)
2483         ln_s="cp -f"
2484         objformat="aout"
2485         add_cppflags -D_GNU_SOURCE
2486         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2487         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2488         FFSERVERLDFLAGS=""
2489         LIBSUF="_s.a"
2490         SLIBPREF=""
2491         SLIBSUF=".dll"
2492         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2493         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2494         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2495           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2496           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2497           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2498           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2499           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2500         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2501           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2502         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2503         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2504         enable dos_paths
2505         ;;
2506     gnu/kfreebsd)
2507         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2508         ;;
2509     gnu)
2510         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2511         ;;
2512     qnx)
2513         add_cppflags -D_QNX_SOURCE
2514         network_extralibs="-lsocket"
2515         ;;
2516     symbian)
2517         SLIBSUF=".dll"
2518         enable dos_paths
2519         add_cflags --include=$sysinclude/gcce/gcce.h
2520         ;;
2521     none)
2522         ;;
2523     *)
2524         die "Unknown OS '$target_os'."
2525         ;;
2526 esac
2527
2528 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2529
2530 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2531
2532 set_default $PATHS_LIST
2533
2534 # we need to build at least one lib type
2535 if ! enabled_any static shared; then
2536     cat <<EOF
2537 At least one library type must be built.
2538 Specify --enable-static to build the static libraries or --enable-shared to
2539 build the shared libraries as well. To only build the shared libraries specify
2540 --disable-static in addition to --enable-shared.
2541 EOF
2542     exit 1;
2543 fi
2544
2545 disabled static && LIBNAME=""
2546
2547 die_license_disabled() {
2548     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2549 }
2550
2551 die_license_disabled gpl libx264
2552 die_license_disabled gpl libxavs
2553 die_license_disabled gpl libxvid
2554 die_license_disabled gpl x11grab
2555
2556 die_license_disabled nonfree libfaac
2557
2558 die_license_disabled version3 libopencore_amrnb
2559 die_license_disabled version3 libopencore_amrwb
2560 die_license_disabled version3 libvo_aacenc
2561 die_license_disabled version3 libvo_amrwbenc
2562
2563 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2564
2565 disabled optimizations || check_cflags -fomit-frame-pointer
2566
2567 enable_pic() {
2568     enable pic
2569     add_cppflags -DPIC
2570     add_cflags   -fPIC
2571     add_asflags  -fPIC
2572 }
2573
2574 enabled pic && enable_pic
2575
2576 check_cc <<EOF || die "Symbol mangling check failed."
2577 int ff_extern;
2578 EOF
2579 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2580 extern_prefix=${sym%%ff_extern*}
2581
2582 check_cc <<EOF && enable inline_asm
2583 void foo(void) { __asm__ volatile ("" ::); }
2584 EOF
2585
2586 _restrict=
2587 for restrict_keyword in restrict __restrict__ __restrict; do
2588     check_cc <<EOF && _restrict=$restrict_keyword && break
2589 void foo(char * $restrict_keyword p);
2590 EOF
2591 done
2592
2593 check_cc <<EOF && enable attribute_packed
2594 struct { int x; } __attribute__((packed)) x;
2595 EOF
2596
2597 check_cc <<EOF && enable attribute_may_alias
2598 union { int x; } __attribute__((may_alias)) x;
2599 EOF
2600
2601 check_cc <<EOF || die "endian test failed"
2602 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2603 EOF
2604 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2605
2606 if enabled alpha; then
2607
2608     check_cflags -mieee
2609
2610 elif enabled arm; then
2611
2612     check_cflags -marm
2613     nogas=die
2614
2615     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2616         enable vfp_args
2617     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2618         case "${cross_prefix:-$cc}" in
2619             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2620             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2621 __asm__ (".eabi_attribute 28, 1");
2622 int main(void) { return 0; }
2623 EOF
2624         esac
2625         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2626     fi
2627
2628     # We have to check if pld is a nop and disable it.
2629     check_asm pld '"pld [r0]"'
2630
2631     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2632     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2633     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2634     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2635     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2636     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2637     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2638
2639     enabled_all armv6t2 shared !pic && enable_pic
2640
2641 elif enabled mips; then
2642
2643     check_asm loongson '"dmult.g $1, $2, $3"'
2644     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2645
2646 elif enabled ppc; then
2647
2648     enable local_aligned_8 local_aligned_16
2649
2650     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2651     check_asm ibm_asm   '"add 0, 0, 0"'
2652     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2653     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2654
2655     # AltiVec flags: The FSF version of GCC differs from the Apple version
2656     if enabled altivec; then
2657         nogas=warn
2658         check_cflags -maltivec -mabi=altivec &&
2659         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2660         check_cflags -faltivec
2661
2662         # check if our compiler supports Motorola AltiVec C API
2663         check_cc <<EOF || disable altivec
2664 $inc_altivec_h
2665 int main(void) {
2666     vector signed int v1, v2, v3;
2667     v1 = vec_add(v2,v3);
2668     return 0;
2669 }
2670 EOF
2671
2672         # check if our compiler supports braces for vector declarations
2673         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2674 $inc_altivec_h
2675 int main (void) { (vector int) {1}; return 0; }
2676 EOF
2677     fi
2678
2679 elif enabled sparc; then
2680
2681     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2682         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2683
2684 elif enabled x86; then
2685
2686     enable local_aligned_8 local_aligned_16
2687
2688     # check whether EBP is available on x86
2689     # As 'i' is stored on the stack, this program will crash
2690     # if the base pointer is used to access it because the
2691     # base pointer is cleared in the inline assembly code.
2692     check_exec_crash <<EOF && enable ebp_available
2693     volatile int i=0;
2694     __asm__ volatile (
2695         "xorl %%ebp, %%ebp"
2696     ::: "%ebp");
2697     return i;
2698 EOF
2699
2700     # check whether EBX is available on x86
2701     check_asm ebx_available '""::"b"(0)' &&
2702         check_asm ebx_available '"":::"%ebx"'
2703
2704     # check whether xmm clobbers are supported
2705     check_asm xmm_clobbers '"":::"%xmm0"'
2706
2707     # check whether more than 10 operands are supported
2708     check_cc <<EOF && enable ten_operands
2709 int main(void) {
2710     int x=0;
2711     __asm__ volatile(
2712         ""
2713         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2714     );
2715     return 0;
2716 }
2717 EOF
2718
2719     # check whether binutils is new enough to compile SSSE3/MMX2
2720     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2721     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2722
2723     check_asm bswap '"bswap %%eax" ::: "%eax"'
2724
2725     if ! disabled_any asm mmx yasm; then
2726         if check_cmd $yasmexe --version; then
2727             enabled x86_64 && yasm_extra="-m amd64"
2728             yasm_debug="-g dwarf2"
2729         elif check_cmd nasm -v; then
2730             yasmexe=nasm
2731             yasm_debug="-g -F dwarf"
2732             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2733         fi
2734
2735         YASMFLAGS="-f $objformat $yasm_extra"
2736         enabled pic               && append YASMFLAGS "-DPIC"
2737         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2738         case "$objformat" in
2739             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2740         esac
2741
2742         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2743             die "yasm not found, use --disable-yasm for a crippled build"
2744         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2745     fi
2746
2747     case "$cpu" in
2748         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2749             disable fast_clz
2750         ;;
2751     esac
2752
2753 fi
2754
2755 if enabled asm; then
2756     as=${gas:=$as}
2757     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2758         $nogas "GNU assembler not found, install gas-preprocessor"
2759 fi
2760
2761 check_ldflags -Wl,--as-needed
2762
2763 if check_func dlopen; then
2764     ldl=
2765 elif check_func dlopen -ldl; then
2766     ldl=-ldl
2767 fi
2768
2769 if enabled network; then
2770     check_type "sys/types.h sys/socket.h" socklen_t
2771     check_type netdb.h "struct addrinfo"
2772     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2773     check_type netinet/in.h "struct sockaddr_in6"
2774     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2775     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2776     # Prefer arpa/inet.h over winsock2
2777     if check_header arpa/inet.h ; then
2778         check_func closesocket
2779     elif check_header winsock2.h ; then
2780         check_func_headers winsock2.h closesocket -lws2 && \
2781             network_extralibs="-lws2" || \
2782         { check_func_headers winsock2.h closesocket -lws2_32 && \
2783             network_extralibs="-lws2_32"; }
2784         check_type ws2tcpip.h socklen_t
2785         check_type ws2tcpip.h "struct addrinfo"
2786         check_type ws2tcpip.h "struct ipv6_mreq"
2787         check_type ws2tcpip.h "struct sockaddr_in6"
2788         check_type ws2tcpip.h "struct sockaddr_storage"
2789         check_struct winsock2.h "struct sockaddr" sa_len
2790     else
2791         disable network
2792     fi
2793 fi
2794
2795 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2796 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2797
2798 check_func  fcntl
2799 check_func  fork
2800 check_func  getaddrinfo $network_extralibs
2801 check_func  gethrtime
2802 check_func  getrusage
2803 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2804 check_func  inet_aton $network_extralibs
2805 check_func  isatty
2806 check_func  localtime_r
2807 check_func  ${malloc_prefix}memalign            && enable memalign
2808 check_func  mkstemp
2809 check_func  mmap
2810 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2811 check_func  setrlimit
2812 check_func  strerror_r
2813 check_func  strtok_r
2814 check_func_headers io.h setmode
2815 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2816 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2817 check_func_headers windows.h GetProcessTimes
2818 check_func_headers windows.h MapViewOfFile
2819 check_func_headers windows.h VirtualAlloc
2820
2821 check_header dlfcn.h
2822 check_header dxva2api.h
2823 check_header malloc.h
2824 check_header poll.h
2825 check_header sys/mman.h
2826 check_header sys/resource.h
2827 check_header sys/select.h
2828 check_header vdpau/vdpau.h
2829 check_header vdpau/vdpau_x11.h
2830 check_header X11/extensions/XvMClib.h
2831
2832 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2833
2834 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2835 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2836
2837 # check for some common methods of building with pthread support
2838 # do this before the optional library checks as some of them require pthreads
2839 if ! disabled pthreads && ! enabled w32threads; then
2840     enable pthreads
2841     if check_func pthread_create; then
2842         :
2843     elif check_func pthread_create -pthread; then
2844         add_cflags -pthread
2845         add_extralibs -pthread
2846     elif check_func pthread_create -pthreads; then
2847         add_cflags -pthreads
2848         add_extralibs -pthreads
2849     elif check_func pthread_create -lpthreadGC2; then
2850         add_extralibs -lpthreadGC2
2851     elif ! check_lib pthread.h pthread_create -lpthread; then
2852         disable pthreads
2853     fi
2854 fi
2855
2856 for thread in $THREADS_LIST; do
2857     if enabled $thread; then
2858         test -n "$thread_type" &&
2859             die "ERROR: Only one thread type must be selected." ||
2860             thread_type="$thread"
2861     fi
2862 done
2863
2864 check_lib math.h sin -lm && LIBM="-lm"
2865 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2866
2867 check_mathfunc exp2
2868 check_mathfunc exp2f
2869 check_mathfunc llrint
2870 check_mathfunc llrintf
2871 check_mathfunc log2
2872 check_mathfunc log2f
2873 check_mathfunc lrint
2874 check_mathfunc lrintf
2875 check_mathfunc round
2876 check_mathfunc roundf
2877 check_mathfunc trunc
2878 check_mathfunc truncf
2879
2880 # these are off by default, so fail if requested and not available
2881 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2882 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2883 enabled libdirac   && require_pkg_config dirac                          \
2884     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2885     "dirac_decoder_init dirac_encoder_init"
2886 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2887 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2888 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2889 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2890 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2891 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2892 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2893 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2894 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2895 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2896 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2897 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2898 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2899 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2900 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2901 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2902 enabled libvpx     && {
2903     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2904                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2905     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2906                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2907 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2908                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2909                         die "ERROR: libx264 version must be >= 0.115."; }
2910 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2911 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2912 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2913
2914 # libdc1394 check
2915 if enabled libdc1394; then
2916     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2917         enable libdc1394_2; } ||
2918     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2919         enable libdc1394_1; } ||
2920     die "ERROR: No version of libdc1394 found "
2921 fi
2922
2923 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2924     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2925     enable sdl &&
2926     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2927 fi
2928
2929 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2930
2931 check_header linux/fb.h
2932 check_header linux/videodev.h
2933 check_header linux/videodev2.h
2934 check_header sys/videoio.h
2935
2936 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2937 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2938 # w32api 3.12 had it defined wrong
2939 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2940
2941 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2942 { check_header dev/bktr/ioctl_meteor.h &&
2943   check_header dev/bktr/ioctl_bt848.h; } ||
2944 { check_header machine/ioctl_meteor.h &&
2945   check_header machine/ioctl_bt848.h; } ||
2946 { check_header dev/video/meteor/ioctl_meteor.h &&
2947   check_header dev/video/bktr/ioctl_bt848.h; } ||
2948 check_header dev/ic/bt8xx.h
2949
2950 check_header sndio.h
2951 check_header sys/soundcard.h
2952 check_header soundcard.h
2953
2954 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2955
2956 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2957
2958 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2959
2960 enabled x11grab                         &&
2961 check_header X11/Xlib.h                 &&
2962 check_header X11/extensions/XShm.h      &&
2963 check_header X11/extensions/Xfixes.h    &&
2964 check_func XOpenDisplay -lX11           &&
2965 check_func XShmCreateImage -lX11 -lXext &&
2966 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2967
2968 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2969 check_cpp_condition \
2970     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2971     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2972       disable vdpau; }
2973 fi
2974
2975 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2976
2977 # add some useful compiler flags if supported
2978 check_cflags -Wdeclaration-after-statement
2979 check_cflags -Wall
2980 check_cflags -Wno-parentheses
2981 check_cflags -Wno-switch
2982 check_cflags -Wdisabled-optimization
2983 check_cflags -Wpointer-arith
2984 check_cflags -Wredundant-decls
2985 check_cflags -Wno-pointer-sign
2986 check_cflags -Wcast-qual
2987 check_cflags -Wwrite-strings
2988 check_cflags -Wtype-limits
2989 check_cflags -Wundef
2990 check_cflags -Wmissing-prototypes
2991 enabled extra_warnings && check_cflags -Winline
2992
2993 # add some linker flags
2994 check_ldflags -Wl,--warn-common
2995 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
2996 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2997
2998 echo "X{};" > $TMPV
2999 if test_ldflags -Wl,--version-script,$TMPV; then
3000     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3001     check_cc <<EOF && enable symver_asm_label
3002 void ff_foo(void) __asm__ ("av_foo@VERSION");
3003 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3004 EOF
3005     check_cc <<EOF && enable symver_gnu_asm
3006 __asm__(".symver ff_foo,av_foo@VERSION");
3007 void ff_foo(void) {}
3008 EOF
3009 fi
3010
3011 if enabled small; then
3012     add_cflags $size_cflags
3013 elif enabled optimizations; then
3014     add_cflags $speed_cflags
3015 else
3016     add_cflags $noopt_cflags
3017 fi
3018 check_cflags -fno-math-errno
3019 check_cflags -fno-signed-zeros
3020
3021 if enabled icc; then
3022     # Just warnings, no remarks
3023     check_cflags -w1
3024     # -wd: Disable following warnings
3025     # 144, 167, 556: -Wno-pointer-sign
3026     # 1292: attribute "foo" ignored
3027     # 10006: ignoring unknown option -fno-signed-zeros
3028     # 10148: ignoring unknown option -Wno-parentheses
3029     # 10156: ignoring option '-W'; no argument required
3030     check_cflags -wd144,167,556,1292,10006,10148,10156
3031     # 11030: Warning unknown option --as-needed
3032     # 10156: ignoring option '-export'; no argument required
3033     check_ldflags -wd10156,11030
3034     # Allow to compile with optimizations
3035     check_ldflags -march=$cpu
3036     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3037     enable ebp_available
3038     if enabled x86_32; then
3039         test ${icc_version%%.*} -ge 11 && \
3040             check_cflags -falign-stack=maintain-16-byte || \
3041             disable aligned_stack
3042     fi
3043 elif enabled ccc; then
3044     # disable some annoying warnings
3045     add_cflags -msg_disable cvtu32to64
3046     add_cflags -msg_disable embedcomment
3047     add_cflags -msg_disable needconstext
3048     add_cflags -msg_disable nomainieee
3049     add_cflags -msg_disable ptrmismatch1
3050     add_cflags -msg_disable unreachcode
3051 elif enabled gcc; then
3052     check_cflags -fno-tree-vectorize
3053     check_cflags -Werror=implicit-function-declaration
3054     check_cflags -Werror=missing-prototypes
3055 elif enabled llvm_gcc; then
3056     check_cflags -mllvm -stack-alignment=16
3057 elif enabled clang; then
3058     check_cflags -mllvm -stack-alignment=16
3059     check_cflags -Qunused-arguments
3060 elif enabled armcc; then
3061     # 2523: use of inline assembler is deprecated
3062     add_cflags -W${armcc_opt},--diag_suppress=2523
3063     add_cflags -W${armcc_opt},--diag_suppress=1207
3064     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3065     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3066     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3067     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3068 elif enabled tms470; then
3069     add_cflags -pds=824 -pds=837
3070 elif enabled pathscale; then
3071     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3072 fi
3073
3074 enabled_any $THREADS_LIST      && enable threads
3075
3076 check_deps $CONFIG_LIST       \
3077            $CONFIG_EXTRA      \
3078            $HAVE_LIST         \
3079            $DECODER_LIST      \
3080            $ENCODER_LIST      \
3081            $HWACCEL_LIST      \
3082            $PARSER_LIST       \
3083            $BSF_LIST          \
3084            $DEMUXER_LIST      \
3085            $MUXER_LIST        \
3086            $FILTER_LIST       \
3087            $INDEV_LIST        \
3088            $OUTDEV_LIST       \
3089            $PROTOCOL_LIST     \
3090            $ACODEC_TESTS      \
3091            $VCODEC_TESTS      \
3092            $LAVF_TESTS        \
3093            $LAVFI_TESTS       \
3094            $SEEK_TESTS        \
3095
3096 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3097
3098 ! enabled_any memalign posix_memalign malloc_aligned &&
3099     enabled_any $need_memalign && enable memalign_hack
3100
3101 echo "install prefix            $prefix"
3102 echo "source path               $source_path"
3103 echo "C compiler                $cc"
3104 echo "ARCH                      $arch ($cpu)"
3105 if test "$build_suffix" != ""; then
3106     echo "build suffix              $build_suffix"
3107 fi
3108 if test "$extra_version" != ""; then
3109     echo "version string suffix     $extra_version"
3110 fi
3111 echo "big-endian                ${bigendian-no}"
3112 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3113 if enabled x86; then
3114     echo "${yasmexe}                      ${yasm-no}"
3115     echo "MMX enabled               ${mmx-no}"
3116     echo "MMX2 enabled              ${mmx2-no}"
3117     echo "3DNow! enabled            ${amd3dnow-no}"
3118     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3119     echo "SSE enabled               ${sse-no}"
3120     echo "SSSE3 enabled             ${ssse3-no}"
3121     echo "AVX enabled               ${avx-no}"
3122     echo "CMOV enabled              ${cmov-no}"
3123     echo "CMOV is fast              ${fast_cmov-no}"
3124     echo "EBX available             ${ebx_available-no}"
3125     echo "EBP available             ${ebp_available-no}"
3126     echo "10 operands supported     ${ten_operands-no}"
3127 fi
3128 if enabled arm; then
3129     echo "ARMv5TE enabled           ${armv5te-no}"
3130     echo "ARMv6 enabled             ${armv6-no}"
3131     echo "ARMv6T2 enabled           ${armv6t2-no}"
3132     echo "ARM VFP enabled           ${armvfp-no}"
3133     echo "IWMMXT enabled            ${iwmmxt-no}"
3134     echo "NEON enabled              ${neon-no}"
3135 fi
3136 if enabled mips; then
3137     echo "MMI enabled               ${mmi-no}"
3138 fi
3139 if enabled ppc; then
3140     echo "AltiVec enabled           ${altivec-no}"
3141     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3142     echo "dcbzl available           ${dcbzl-no}"
3143 fi
3144 if enabled sparc; then
3145     echo "VIS enabled               ${vis-no}"
3146 fi
3147 echo "debug symbols             ${debug-no}"
3148 echo "optimize for size         ${small-no}"
3149 echo "optimizations             ${optimizations-no}"
3150 echo "static                    ${static-no}"
3151 echo "shared                    ${shared-no}"
3152 echo "postprocessing support    ${postproc-no}"
3153 echo "new filter support        ${avfilter-no}"
3154 echo "network support           ${network-no}"
3155 echo "threading support         ${thread_type-no}"
3156 echo "SDL support               ${sdl-no}"
3157 echo "Sun medialib support      ${mlib-no}"
3158 echo "AVISynth enabled          ${avisynth-no}"
3159 echo "frei0r enabled            ${frei0r-no}"
3160 echo "libdc1394 support         ${libdc1394-no}"
3161 echo "libdirac enabled          ${libdirac-no}"
3162 echo "libfaac enabled           ${libfaac-no}"
3163 echo "libgsm enabled            ${libgsm-no}"
3164 echo "libmp3lame enabled        ${libmp3lame-no}"
3165 echo "libnut enabled            ${libnut-no}"
3166 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3167 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3168 echo "libopencv support         ${libopencv-no}"
3169 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3170 echo "librtmp enabled           ${librtmp-no}"
3171 echo "libschroedinger enabled   ${libschroedinger-no}"
3172 echo "libspeex enabled          ${libspeex-no}"
3173 echo "libtheora enabled         ${libtheora-no}"
3174 echo "libva enabled             ${vaapi-no}"
3175 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3176 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3177 echo "libvorbis enabled         ${libvorbis-no}"
3178 echo "libvpx enabled            ${libvpx-no}"
3179 echo "libx264 enabled           ${libx264-no}"
3180 echo "libxavs enabled           ${libxavs-no}"
3181 echo "libxvid enabled           ${libxvid-no}"
3182 echo "zlib enabled              ${zlib-no}"
3183 echo "bzlib enabled             ${bzlib-no}"
3184 echo
3185
3186 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3187     echo "Enabled ${type}s:"
3188     eval list=\$$(toupper $type)_LIST
3189     print_enabled '_*' $list | sort | pr -r -3 -t
3190     echo
3191 done
3192
3193 license="LGPL version 2.1 or later"
3194 if enabled nonfree; then
3195     license="nonfree and unredistributable"
3196 elif enabled gplv3; then
3197     license="GPL version 3 or later"
3198 elif enabled lgplv3; then
3199     license="LGPL version 3 or later"
3200 elif enabled gpl; then
3201     license="GPL version 2 or later"
3202 fi
3203
3204 echo "License: $license"
3205
3206 echo "Creating config.mak and config.h..."
3207
3208 # build tree in object directory if source path is different from current one
3209 if enabled source_path_used; then
3210     DIRS="
3211         doc
3212         libavcodec
3213         libavcodec/$arch
3214         libavcodec/mlib
3215         libavdevice
3216         libavfilter
3217         libavfilter/$arch
3218         libavformat
3219         libavutil
3220         libavutil/$arch
3221         libpostproc
3222         libswscale
3223         libswscale/$arch
3224         libswscale/mlib
3225         tests
3226         tools
3227     "
3228     FILES="
3229         Makefile
3230         common.mak
3231         subdir.mak
3232         doc/texi2pod.pl
3233         libavcodec/Makefile
3234         libavcodec/${arch}/Makefile
3235         libavdevice/Makefile
3236         libavfilter/Makefile
3237         libavfilter/${arch}/Makefile
3238         libavformat/Makefile
3239         libavutil/Makefile
3240         libpostproc/Makefile
3241         libswscale/Makefile
3242     "
3243     map 'mkdir -p $v' $DIRS;
3244     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3245 fi
3246
3247 config_files="$TMPH config.mak"
3248
3249 cat > config.mak <<EOF
3250 # Automatically generated by configure - do not modify!
3251 ifndef LIBAV_CONFIG_MAK
3252 LIBAV_CONFIG_MAK=1
3253 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3254 prefix=$prefix
3255 LIBDIR=\$(DESTDIR)$libdir
3256 SHLIBDIR=\$(DESTDIR)$shlibdir
3257 INCDIR=\$(DESTDIR)$incdir
3258 BINDIR=\$(DESTDIR)$bindir
3259 DATADIR=\$(DESTDIR)$datadir
3260 MANDIR=\$(DESTDIR)$mandir
3261 SRC_PATH="$source_path"
3262 SRC_PATH_BARE=$source_path
3263 CC_IDENT=$cc_ident
3264 ARCH=$arch
3265 CC=$cc
3266 AS=$as
3267 LD=$ld
3268 DEPCC=$dep_cc
3269 YASM=$yasmexe
3270 YASMDEP=$yasmexe
3271 AR=$ar
3272 RANLIB=$ranlib
3273 LN_S=$ln_s
3274 CPPFLAGS=$CPPFLAGS
3275 CFLAGS=$CFLAGS
3276 ASFLAGS=$ASFLAGS
3277 CC_O=$CC_O
3278 DLLTOOL=$dlltool
3279 LDFLAGS=$LDFLAGS
3280 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3281 SHFLAGS=$SHFLAGS
3282 YASMFLAGS=$YASMFLAGS
3283 BUILDSUF=$build_suffix
3284 FULLNAME=$FULLNAME
3285 LIBPREF=$LIBPREF
3286 LIBSUF=$LIBSUF
3287 LIBNAME=$LIBNAME
3288 SLIBPREF=$SLIBPREF
3289 SLIBSUF=$SLIBSUF
3290 EXESUF=$EXESUF
3291 EXTRA_VERSION=$extra_version
3292 DEPFLAGS=$DEPFLAGS
3293 CCDEP=$CCDEP
3294 ASDEP=$ASDEP
3295 CC_DEPFLAGS=$CC_DEPFLAGS
3296 AS_DEPFLAGS=$AS_DEPFLAGS
3297 HOSTCC=$host_cc
3298 HOSTCFLAGS=$host_cflags
3299 HOSTEXESUF=$HOSTEXESUF
3300 HOSTLDFLAGS=$host_ldflags
3301 HOSTLIBS=$host_libs
3302 TARGET_EXEC=$target_exec
3303 TARGET_PATH=$target_path
3304 SDL_LIBS=$sdl_libs
3305 SDL_CFLAGS=$sdl_cflags
3306 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3307 EXTRALIBS=$extralibs
3308 INSTALL=install
3309 LIBTARGET=${LIBTARGET}
3310 SLIBNAME=${SLIBNAME}
3311 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3312 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3313 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3314 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3315 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3316 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3317 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3318 EOF
3319
3320 get_version(){
3321     name=$1
3322     file=$source_path/$2
3323     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3324     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3325     lcname=$(tolower $name)
3326     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3327     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3328 }
3329
3330 get_version LIBSWSCALE  libswscale/swscale.h
3331 get_version LIBPOSTPROC libpostproc/postprocess.h
3332 get_version LIBAVCODEC  libavcodec/version.h
3333 get_version LIBAVDEVICE libavdevice/avdevice.h
3334 get_version LIBAVFORMAT libavformat/version.h
3335 get_version LIBAVUTIL   libavutil/avutil.h
3336 get_version LIBAVFILTER libavfilter/avfilter.h
3337
3338 cat > $TMPH <<EOF
3339 /* Automatically generated by configure - do not modify! */
3340 #ifndef LIBAV_CONFIG_H
3341 #define LIBAV_CONFIG_H
3342 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3343 #define LIBAV_LICENSE "$(c_escape $license)"
3344 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3345 #define CC_TYPE "$cc_type"
3346 #define CC_VERSION $cc_version
3347 #define restrict $_restrict
3348 #define EXTERN_PREFIX "${extern_prefix}"
3349 #define EXTERN_ASM ${extern_prefix}
3350 #define SLIBSUF "$SLIBSUF"
3351 EOF
3352
3353 test -n "$malloc_prefix" &&
3354     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3355
3356 if enabled small || disabled optimizations; then
3357     echo "#undef  av_always_inline"  >> $TMPH
3358     if enabled small; then
3359         echo "#define av_always_inline inline"  >> $TMPH
3360     else
3361         echo "#define av_always_inline av_unused"  >> $TMPH
3362     fi
3363 fi
3364
3365 if enabled yasm; then
3366     append config_files $TMPASM
3367     printf '' >$TMPASM
3368 fi
3369
3370 print_config ARCH_   "$config_files" $ARCH_LIST
3371 print_config HAVE_   "$config_files" $HAVE_LIST
3372 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3373                                      $CONFIG_EXTRA      \
3374                                      $DECODER_LIST      \
3375                                      $ENCODER_LIST      \
3376                                      $HWACCEL_LIST      \
3377                                      $PARSER_LIST       \
3378                                      $BSF_LIST          \
3379                                      $DEMUXER_LIST      \
3380                                      $MUXER_LIST        \
3381                                      $FILTER_LIST       \
3382                                      $PROTOCOL_LIST     \
3383                                      $INDEV_LIST        \
3384                                      $OUTDEV_LIST       \
3385
3386 cat >>config.mak <<EOF
3387 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3388 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3389 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3390 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3391 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3392 EOF
3393
3394 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3395 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3396
3397 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3398 cp_if_changed $TMPH config.h
3399 touch .config
3400
3401 enabled yasm && cp_if_changed $TMPASM config.asm
3402
3403 cat > $TMPH <<EOF
3404 /* Generated by ffconf */
3405 #ifndef AVUTIL_AVCONFIG_H
3406 #define AVUTIL_AVCONFIG_H
3407 EOF
3408
3409 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3410
3411 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3412
3413 cp_if_changed $TMPH libavutil/avconfig.h
3414
3415 test -n "$WARNINGS" && printf "\n$WARNINGS"
3416
3417 # build pkg-config files
3418
3419 pkgconfig_generate(){
3420 name=$1
3421 shortname=${name#lib}${build_suffix}
3422 comment=$2
3423 version=$3
3424 libs=$4
3425 requires=$5
3426 enabled ${name#lib} || return 0
3427 cat <<EOF > $name/$name.pc
3428 prefix=$prefix
3429 exec_prefix=\${prefix}
3430 libdir=$libdir
3431 includedir=$incdir
3432
3433 Name: $name
3434 Description: $comment
3435 Version: $version
3436 Requires: $(enabled shared || echo $requires)
3437 Requires.private: $(enabled shared && echo $requires)
3438 Conflicts:
3439 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3440 Libs.private: $(enabled shared && echo $libs)
3441 Cflags: -I\${includedir}
3442 EOF
3443 cat <<EOF > $name/$name-uninstalled.pc
3444 prefix=
3445 exec_prefix=
3446 libdir=\${pcfiledir}
3447 includedir=${source_path}
3448
3449 Name: $name
3450 Description: $comment
3451 Version: $version
3452 Requires: $requires
3453 Conflicts:
3454 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3455 Cflags: -I\${includedir}
3456 EOF
3457 }
3458
3459 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3460 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3461 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3462 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3463 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3464 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3465 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"