Bitmap Brothers JV errata
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg 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 FFMPEG, 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 FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --enable-postproc        enable GPLed postprocessing support [no]
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
98   --enable-gray            enable full grayscale support (slower color)
99   --disable-swscale-alpha  disable alpha channel support in swscale
100   --disable-fastdiv        disable table-based division
101   --enable-small           optimize for size instead of speed
102   --disable-aandct         disable AAN DCT code
103   --disable-dct            disable DCT code
104   --disable-fft            disable FFT code
105   --disable-golomb         disable Golomb code
106   --disable-huffman        disable Huffman code
107   --disable-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --disable-vaapi          disable VAAPI code
111   --disable-vdpau          disable VDPAU code
112   --disable-dxva2          disable DXVA2 code
113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
116   --disable-everything     disable all components listed below
117   --disable-encoder=NAME   disable encoder NAME
118   --enable-encoder=NAME    enable encoder NAME
119   --disable-encoders       disable all encoders
120   --disable-decoder=NAME   disable decoder NAME
121   --enable-decoder=NAME    enable decoder NAME
122   --disable-decoders       disable all decoders
123   --disable-hwaccel=NAME   disable hwaccel NAME
124   --enable-hwaccel=NAME    enable hwaccel NAME
125   --disable-hwaccels       disable all hwaccels
126   --disable-muxer=NAME     disable muxer NAME
127   --enable-muxer=NAME      enable muxer NAME
128   --disable-muxers         disable all muxers
129   --disable-demuxer=NAME   disable demuxer NAME
130   --enable-demuxer=NAME    enable demuxer NAME
131   --disable-demuxers       disable all demuxers
132   --enable-parser=NAME     enable parser NAME
133   --disable-parser=NAME    disable parser NAME
134   --disable-parsers        disable all parsers
135   --enable-bsf=NAME        enable bitstream filter NAME
136   --disable-bsf=NAME       disable bitstream filter NAME
137   --disable-bsfs           disable all bitstream filters
138   --enable-protocol=NAME   enable protocol NAME
139   --disable-protocol=NAME  disable protocol NAME
140   --disable-protocols      disable all protocols
141   --disable-indev=NAME     disable input device NAME
142   --disable-outdev=NAME    disable output device NAME
143   --disable-indevs         disable input devices
144   --disable-outdevs        disable output devices
145   --disable-devices        disable all devices
146   --enable-filter=NAME     enable filter NAME
147   --disable-filter=NAME    disable filter NAME
148   --disable-filters        disable all filters
149   --list-decoders          show all available decoders
150   --list-encoders          show all available encoders
151   --list-hwaccels          show all available hardware accelerators
152   --list-muxers            show all available muxers
153   --list-demuxers          show all available demuxers
154   --list-parsers           show all available parsers
155   --list-protocols         show all available protocols
156   --list-bsfs              show all available bitstream filters
157   --list-indevs            show all available input devices
158   --list-outdevs           show all available output devices
159   --list-filters           show all available filters
160
161 External library support:
162   --enable-avisynth        enable reading of AVISynth script files [no]
163   --enable-bzlib           enable bzlib [autodetect]
164   --enable-frei0r          enable frei0r video filtering
165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167   --enable-libopencv       enable video filtering via libopencv [no]
168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
169                            and libraw1394 [no]
170   --enable-libdirac        enable Dirac support via libdirac [no]
171   --enable-libfaac         enable FAAC support via libfaac [no]
172   --enable-libfreetype     enable libfreetype [no]
173   --enable-libgsm          enable GSM support via libgsm [no]
174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
175   --enable-libnut          enable NUT (de)muxing via libnut,
176                            native (de)muxer exists [no]
177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
180   --enable-libspeex        enable Speex decoding via libspeex [no]
181   --enable-libtheora       enable Theora encoding via libtheora [no]
182   --enable-libvorbis       enable Vorbis encoding via libvorbis,
183                            native implementation exists [no]
184   --enable-libvpx          enable VP8 support via libvpx [no]
185   --enable-libx264         enable H.264 encoding via x264 [no]
186   --enable-libxavs         enable AVS encoding via xavs [no]
187   --enable-libxvid         enable Xvid encoding via xvidcore,
188                            native MPEG-4/Xvid encoder exists [no]
189   --enable-mlib            enable Sun medialib [no]
190   --enable-zlib            enable zlib [autodetect]
191
192 Advanced options (experts only):
193   --source-path=PATH       path to source code [$source_path]
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 [$arch]
216   --cpu=CPU                select the minimum required CPU (affects
217                            instruction selection, may crash on older CPUs)
218   --disable-asm            disable all assembler optimizations
219   --disable-altivec        disable AltiVec optimizations
220   --disable-amd3dnow       disable 3DNow! optimizations
221   --disable-amd3dnowext    disable 3DNow! extended optimizations
222   --disable-mmx            disable MMX optimizations
223   --disable-mmx2           disable MMX2 optimizations
224   --disable-sse            disable SSE optimizations
225   --disable-ssse3          disable SSSE3 optimizations
226   --disable-avx            disable AVX optimizations
227   --disable-armv5te        disable armv5te optimizations
228   --disable-armv6          disable armv6 optimizations
229   --disable-armv6t2        disable armv6t2 optimizations
230   --disable-armvfp         disable ARM VFP optimizations
231   --disable-iwmmxt         disable iwmmxt optimizations
232   --disable-mmi            disable MMI optimizations
233   --disable-neon           disable neon optimizations
234   --disable-vis            disable VIS optimizations
235   --disable-yasm           disable use of yasm assembler
236   --enable-pic             build position-independent code
237   --malloc-prefix=PFX      prefix malloc and related names with PFX
238   --enable-sram            allow use of on-chip SRAM
239   --disable-symver         disable symbol versioning
240
241 Developer options (useful when working on FFmpeg itself):
242   --disable-debug          disable debugging symbols
243   --enable-debug=LEVEL     set the debug level [$debuglevel]
244   --disable-optimizations  disable compiler optimizations
245   --enable-extra-warnings  enable more compiler warnings
246   --disable-stripping      disable stripping of executables and shared libraries
247   --samples=PATH           location of test samples for FATE, if not set use
248                            \$FATE_SAMPLES at make invocation time.
249
250 NOTE: Object files are built at the place where configure is launched.
251 EOF
252   exit 0
253 }
254
255 quotes='""'
256
257 log(){
258     echo "$@" >> $logfile
259 }
260
261 log_file(){
262     log BEGIN $1
263     pr -n -t $1 >> $logfile
264     log END $1
265 }
266
267 echolog(){
268     log "$@"
269     echo "$@"
270 }
271
272 warn(){
273     log "WARNING: $*"
274     WARNINGS="${WARNINGS}WARNING: $*\n"
275 }
276
277 die(){
278     echolog "$@"
279     cat <<EOF
280
281 If you think configure made a mistake, make sure you are using the latest
282 version from Git.  If the latest version fails, report the problem to the
283 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
284 EOF
285     if disabled logging; then
286         cat <<EOF
287 Rerun configure with logging enabled (do not use --disable-logging), and
288 include the log this produces with your report.
289 EOF
290     else
291 cat <<EOF
292 Include the log file "$logfile" produced by configure as this will help
293 solving the problem.
294 EOF
295     fi
296     exit 1
297 }
298
299 # Avoid locale weirdness, besides we really just want to translate ASCII.
300 toupper(){
301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
302 }
303
304 tolower(){
305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
306 }
307
308 c_escape(){
309     echo "$*" | sed 's/["\\]/\\\0/g'
310 }
311
312 sh_quote(){
313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
315     echo "$v"
316 }
317
318 cleanws(){
319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
320 }
321
322 filter(){
323     pat=$1
324     shift
325     for v; do
326         eval "case $v in $pat) echo $v ;; esac"
327     done
328 }
329
330 filter_out(){
331     pat=$1
332     shift
333     for v; do
334         eval "case $v in $pat) ;; *) echo $v ;; esac"
335     done
336 }
337
338 map(){
339     m=$1
340     shift
341     for v; do eval $m; done
342 }
343
344 set_all(){
345     value=$1
346     shift
347     for var in $*; do
348         eval $var=$value
349     done
350 }
351
352 set_weak(){
353     value=$1
354     shift
355     for var; do
356         eval : \${$var:=$value}
357     done
358 }
359
360 pushvar(){
361     for var in $*; do
362         eval level=\${${var}_level:=0}
363         eval ${var}_${level}="\$$var"
364         eval ${var}_level=$(($level+1))
365     done
366 }
367
368 popvar(){
369     for var in $*; do
370         eval level=\${${var}_level:-0}
371         test $level = 0 && continue
372         eval level=$(($level-1))
373         eval $var="\${${var}_${level}}"
374         eval ${var}_level=$level
375         eval unset ${var}_${level}
376     done
377 }
378
379 enable(){
380     set_all yes $*
381 }
382
383 disable(){
384     set_all no $*
385 }
386
387 enable_weak(){
388     set_weak yes $*
389 }
390
391 disable_weak(){
392     set_weak no $*
393 }
394
395 enable_safe(){
396     for var; do
397         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
398     done
399 }
400
401 disable_safe(){
402     for var; do
403         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
404     done
405 }
406
407 do_enable_deep(){
408     for var; do
409         enabled $var && continue
410         eval sel="\$${var}_select"
411         eval sgs="\$${var}_suggest"
412         pushvar var sgs
413         enable_deep $sel
414         popvar sgs
415         enable_deep_weak $sgs
416         popvar var
417     done
418 }
419
420 enable_deep(){
421     do_enable_deep $*
422     enable $*
423 }
424
425 enable_deep_weak(){
426     do_enable_deep $*
427     enable_weak $*
428 }
429
430 enabled(){
431     test "${1#!}" = "$1" && op== || op=!=
432     eval test "x\$${1#!}" $op "xyes"
433 }
434
435 disabled(){
436     test "${1#!}" = "$1" && op== || op=!=
437     eval test "x\$${1#!}" $op "xno"
438 }
439
440 enabled_all(){
441     for opt; do
442         enabled $opt || return 1
443     done
444 }
445
446 disabled_all(){
447     for opt; do
448         disabled $opt || return 1
449     done
450 }
451
452 enabled_any(){
453     for opt; do
454         enabled $opt && return 0
455     done
456 }
457
458 disabled_any(){
459     for opt; do
460         disabled $opt && return 0
461     done
462     return 1
463 }
464
465 set_default(){
466     for opt; do
467         eval : \${$opt:=\$${opt}_default}
468     done
469 }
470
471 is_in(){
472     value=$1
473     shift
474     for var in $*; do
475         [ $var = $value ] && return 0
476     done
477     return 1
478 }
479
480 check_deps(){
481     for cfg; do
482         cfg="${cfg#!}"
483         enabled ${cfg}_checking && die "Circular dependency for $cfg."
484         disabled ${cfg}_checking && continue
485         enable ${cfg}_checking
486
487         eval dep_all="\$${cfg}_deps"
488         eval dep_any="\$${cfg}_deps_any"
489         eval dep_sel="\$${cfg}_select"
490         eval dep_sgs="\$${cfg}_suggest"
491         eval dep_ifa="\$${cfg}_if"
492         eval dep_ifn="\$${cfg}_if_any"
493
494         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
495         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
496         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
497
498         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
499         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
500         enabled_all  $dep_all || disable $cfg
501         enabled_any  $dep_any || disable $cfg
502         disabled_any $dep_sel && disable $cfg
503
504         if enabled $cfg; then
505             eval dep_extralibs="\$${cfg}_extralibs"
506             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
507             enable_deep $dep_sel
508             enable_deep_weak $dep_sgs
509         fi
510
511         disable ${cfg}_checking
512     done
513 }
514
515 print_config_h(){
516     enabled $1 && v=1 || v=0
517     echo "#define $2 $v"
518 }
519
520 print_config_mak(){
521     enabled $1 && v= || v=!
522     echo "$v$2=yes"
523 }
524
525 print_config_asm(){
526     enabled $1 && echo "%define $2"
527 }
528
529 print_config(){
530     pfx=$1
531     files=$2
532     shift 2
533     for cfg; do
534         ucname="$(toupper $cfg)"
535         for f in $files; do
536             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
537         done
538     done
539 }
540
541 print_enabled(){
542     test "$1" = -n && end=" " && shift || end="\n"
543     suf=$1
544     shift
545     for v; do
546         enabled $v && printf "%s$end" ${v%$suf};
547     done
548 }
549
550 append(){
551     var=$1
552     shift
553     eval "$var=\"\$$var $*\""
554 }
555
556 prepend(){
557     var=$1
558     shift
559     eval "$var=\"$* \$$var\""
560 }
561
562 add_cppflags(){
563     append CPPFLAGS $($filter_cppflags "$@")
564 }
565
566 add_cflags(){
567     append CFLAGS $($filter_cflags "$@")
568 }
569
570 add_asflags(){
571     append ASFLAGS $($filter_asflags "$@")
572 }
573
574 add_ldflags(){
575     append LDFLAGS "$@"
576 }
577
578 add_extralibs(){
579     prepend extralibs "$@"
580 }
581
582 check_cmd(){
583     log "$@"
584     "$@" >> $logfile 2>&1
585 }
586
587 check_cc(){
588     log check_cc "$@"
589     cat > $TMPC
590     log_file $TMPC
591     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
592 }
593
594 check_cpp(){
595     log check_cpp "$@"
596     cat > $TMPC
597     log_file $TMPC
598     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
599 }
600
601 check_as(){
602     log check_as "$@"
603     cat > $TMPC
604     log_file $TMPC
605     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
606 }
607
608 check_asm(){
609     log check_asm "$@"
610     name="$1"
611     code="$2"
612     shift 2
613     disable $name
614     check_as "$@" <<EOF && enable $name
615 void foo(void){ __asm__ volatile($code); }
616 EOF
617 }
618
619 check_yasm(){
620     log check_yasm "$@"
621     echo "$1" > $TMPS
622     log_file $TMPS
623     shift 1
624     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
625 }
626
627 check_ld(){
628     log check_ld "$@"
629     flags=''
630     libs=''
631     for f; do
632         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
633     done
634     check_cc $($filter_cflags $flags) || return
635     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
636 }
637
638 check_cppflags(){
639     log check_cppflags "$@"
640     set -- $($filter_cppflags "$@")
641     check_cc "$@" <<EOF && append CPPFLAGS "$@"
642 int x;
643 EOF
644 }
645
646 check_cflags(){
647     log check_cflags "$@"
648     set -- $($filter_cflags "$@")
649     check_cc "$@" <<EOF && append CFLAGS "$@"
650 int x;
651 EOF
652 }
653
654 test_ldflags(){
655     log test_ldflags "$@"
656     check_ld "$@" <<EOF
657 int main(void){ return 0; }
658 EOF
659 }
660
661 check_ldflags(){
662     log check_ldflags "$@"
663     test_ldflags "$@" && add_ldflags "$@"
664 }
665
666 check_header(){
667     log check_header "$@"
668     header=$1
669     shift
670     disable_safe $header
671     check_cpp "$@" <<EOF && enable_safe $header
672 #include <$header>
673 int x;
674 EOF
675 }
676
677 check_func(){
678     log check_func "$@"
679     func=$1
680     shift
681     disable $func
682     check_ld "$@" <<EOF && enable $func
683 extern int $func();
684 int main(void){ $func(); }
685 EOF
686 }
687
688 check_mathfunc(){
689     log check_mathfunc "$@"
690     func=$1
691     shift
692     disable $func
693     check_ld "$@" <<EOF && enable $func
694 #include <math.h>
695 float foo(float f) { return $func(f); }
696 int main(void){ return 0; }
697 EOF
698 }
699
700 check_func_headers(){
701     log check_func_headers "$@"
702     headers=$1
703     func=$2
704     shift 2
705     disable $func
706     incs=""
707     for hdr in $headers; do
708         incs="$incs
709 #include <$hdr>"
710     done
711     check_ld "$@" <<EOF && enable $func && enable_safe $headers
712 $incs
713 int main(int argc, char **argv){
714     return (long) $func;
715 }
716 EOF
717 }
718
719 check_cpp_condition(){
720     log check_cpp_condition "$@"
721     header=$1
722     condition=$2
723     shift 2
724     check_cpp $($filter_cppflags "$@") <<EOF
725 #include <$header>
726 #if !($condition)
727 #error "unsatisfied condition: $condition"
728 #endif
729 EOF
730 }
731
732 check_lib(){
733     log check_lib "$@"
734     header="$1"
735     func="$2"
736     shift 2
737     check_header $header && check_func $func "$@" && add_extralibs "$@"
738 }
739
740 check_lib2(){
741     log check_lib2 "$@"
742     headers="$1"
743     func="$2"
744     shift 2
745     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
746 }
747
748 check_exec(){
749     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
750 }
751
752 check_exec_crash(){
753     code=$(cat)
754
755     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
756     # are safe but may not be available everywhere.  Thus we use
757     # raise(SIGTERM) instead.  The check is run in a subshell so we
758     # can redirect the "Terminated" message from the shell.  SIGBUS
759     # is not defined by standard C so it is used conditionally.
760
761     (check_exec "$@") >> $logfile 2>&1 <<EOF
762 #include <signal.h>
763 static void sighandler(int sig){
764     raise(SIGTERM);
765 }
766 int main(void){
767     signal(SIGILL, sighandler);
768     signal(SIGFPE, sighandler);
769     signal(SIGSEGV, sighandler);
770 #ifdef SIGBUS
771     signal(SIGBUS, sighandler);
772 #endif
773     { $code }
774 }
775 EOF
776 }
777
778 check_type(){
779     log check_type "$@"
780     headers=$1
781     type=$2
782     shift 2
783     disable_safe "$type"
784     incs=""
785     for hdr in $headers; do
786         incs="$incs
787 #include <$hdr>"
788     done
789     check_cc "$@" <<EOF && enable_safe "$type"
790 $incs
791 $type v;
792 EOF
793 }
794
795 check_struct(){
796     log check_type "$@"
797     headers=$1
798     struct=$2
799     member=$3
800     shift 3
801     disable_safe "${struct}_${member}"
802     incs=""
803     for hdr in $headers; do
804         incs="$incs
805 #include <$hdr>"
806     done
807     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
808 $incs
809 const void *p = &(($struct *)0)->$member;
810 EOF
811 }
812
813 require(){
814     name="$1"
815     header="$2"
816     func="$3"
817     shift 3
818     check_lib $header $func "$@" || die "ERROR: $name not found"
819 }
820
821 require2(){
822     name="$1"
823     headers="$2"
824     func="$3"
825     shift 3
826     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
827 }
828
829 check_host_cc(){
830     log check_host_cc "$@"
831     cat > $TMPC
832     log_file $TMPC
833     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
834 }
835
836 check_host_cflags(){
837     log check_host_cflags "$@"
838     check_host_cc "$@" <<EOF && append host_cflags "$@"
839 int x;
840 EOF
841 }
842
843 apply(){
844     file=$1
845     shift
846     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
847 }
848
849 cp_if_changed(){
850     cmp -s "$1" "$2" &&
851         echo "$2 is unchanged" ||
852         cp -f "$1" "$2"
853 }
854
855 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
856 # system-dependent things.
857
858 COMPONENT_LIST="
859     bsfs
860     decoders
861     demuxers
862     encoders
863     filters
864     hwaccels
865     indevs
866     muxers
867     outdevs
868     parsers
869     protocols
870 "
871
872 CONFIG_LIST="
873     $COMPONENT_LIST
874     aandct
875     avcodec
876     avdevice
877     avfilter
878     avformat
879     avisynth
880     bzlib
881     crystalhd
882     dct
883     doc
884     dwt
885     dxva2
886     fastdiv
887     ffmpeg
888     ffplay
889     ffprobe
890     ffserver
891     fft
892     frei0r
893     golomb
894     gpl
895     gray
896     h264dsp
897     h264pred
898     hardcoded_tables
899     huffman
900     libdc1394
901     libdirac
902     libfaac
903     libfreetype
904     libgsm
905     libmp3lame
906     libnut
907     libopencore_amrnb
908     libopencore_amrwb
909     libopencv
910     libopenjpeg
911     librtmp
912     libschroedinger
913     libspeex
914     libtheora
915     libvorbis
916     libvpx
917     libx264
918     libxavs
919     libxvid
920     lpc
921     lsp
922     mdct
923     memalign_hack
924     mlib
925     mpegaudio_hp
926     network
927     nonfree
928     pic
929     postproc
930     rdft
931     rtpdec
932     runtime_cpudetect
933     shared
934     small
935     sram
936     static
937     swscale
938     swscale_alpha
939     vaapi
940     vdpau
941     version3
942     x11grab
943     zlib
944 "
945
946 THREADS_LIST='
947     pthreads
948     w32threads
949 '
950
951 ARCH_LIST='
952     alpha
953     arm
954     avr32
955     avr32_ap
956     avr32_uc
957     bfin
958     ia64
959     m68k
960     mips
961     mips64
962     parisc
963     ppc
964     ppc64
965     s390
966     sh4
967     sparc
968     sparc64
969     tomi
970     x86
971     x86_32
972     x86_64
973 '
974
975 ARCH_EXT_LIST='
976     altivec
977     amd3dnow
978     amd3dnowext
979     armv5te
980     armv6
981     armv6t2
982     armvfp
983     avx
984     iwmmxt
985     mmi
986     mmx
987     mmx2
988     neon
989     ppc4xx
990     sse
991     ssse3
992     vis
993 '
994
995 HAVE_LIST_PUB='
996     bigendian
997     fast_unaligned
998 '
999
1000 HAVE_LIST="
1001     $ARCH_EXT_LIST
1002     $HAVE_LIST_PUB
1003     $THREADS_LIST
1004     aligned_stack
1005     alsa_asoundlib_h
1006     altivec_h
1007     arpa_inet_h
1008     attribute_may_alias
1009     attribute_packed
1010     bswap
1011     closesocket
1012     cmov
1013     conio_h
1014     dcbzl
1015     dev_bktr_ioctl_bt848_h
1016     dev_bktr_ioctl_meteor_h
1017     dev_ic_bt8xx_h
1018     dev_video_meteor_ioctl_meteor_h
1019     dev_video_bktr_ioctl_bt848_h
1020     dlfcn_h
1021     dlopen
1022     dos_paths
1023     ebp_available
1024     ebx_available
1025     exp2
1026     exp2f
1027     fast_64bit
1028     fast_clz
1029     fast_cmov
1030     fcntl
1031     fork
1032     getaddrinfo
1033     gethrtime
1034     GetProcessMemoryInfo
1035     GetProcessTimes
1036     getrusage
1037     gnu_as
1038     struct_rusage_ru_maxrss
1039     ibm_asm
1040     inet_aton
1041     inline_asm
1042     isatty
1043     ldbrx
1044     libdc1394_1
1045     libdc1394_2
1046     llrint
1047     llrintf
1048     local_aligned_16
1049     local_aligned_8
1050     localtime_r
1051     log2
1052     log2f
1053     loongson
1054     lrint
1055     lrintf
1056     lzo1x_999_compress
1057     machine_ioctl_bt848_h
1058     machine_ioctl_meteor_h
1059     malloc_h
1060     MapViewOfFile
1061     memalign
1062     mkstemp
1063     mmap
1064     pld
1065     posix_memalign
1066     round
1067     roundf
1068     sdl
1069     sdl_video_size
1070     setmode
1071     socklen_t
1072     soundcard_h
1073     poll_h
1074     setrlimit
1075     strerror_r
1076     strtok_r
1077     struct_addrinfo
1078     struct_ipv6_mreq
1079     struct_sockaddr_in6
1080     struct_sockaddr_sa_len
1081     struct_sockaddr_storage
1082     symver
1083     symver_gnu_asm
1084     symver_asm_label
1085     sys_mman_h
1086     sys_resource_h
1087     sys_select_h
1088     sys_soundcard_h
1089     sys_videoio_h
1090     ten_operands
1091     termios_h
1092     threads
1093     truncf
1094     vfp_args
1095     VirtualAlloc
1096     winsock2_h
1097     xform_asm
1098     xmm_clobbers
1099     yasm
1100 "
1101
1102 # options emitted with CONFIG_ prefix but not available on command line
1103 CONFIG_EXTRA="
1104     avutil
1105     gplv3
1106     lgplv3
1107 "
1108
1109 CMDLINE_SELECT="
1110     $ARCH_EXT_LIST
1111     $CONFIG_LIST
1112     $THREADS_LIST
1113     asm
1114     cross_compile
1115     debug
1116     extra_warnings
1117     logging
1118     optimizations
1119     stripping
1120     symver
1121     yasm
1122 "
1123
1124 PATHS_LIST='
1125     bindir
1126     datadir
1127     incdir
1128     libdir
1129     mandir
1130     prefix
1131     shlibdir
1132 '
1133
1134 CMDLINE_SET="
1135     $PATHS_LIST
1136     ar
1137     arch
1138     as
1139     build_suffix
1140     cc
1141     cpu
1142     cross_prefix
1143     dep_cc
1144     extra_version
1145     host_cc
1146     host_cflags
1147     host_ldflags
1148     host_libs
1149     host_os
1150     ld
1151     logfile
1152     malloc_prefix
1153     nm
1154     samples
1155     source_path
1156     strip
1157     sysinclude
1158     sysroot
1159     target_exec
1160     target_os
1161     target_path
1162 "
1163
1164 CMDLINE_APPEND="
1165     extra_cflags
1166 "
1167
1168 # code dependency declarations
1169
1170 # architecture extensions
1171
1172 armv5te_deps="arm"
1173 armv6_deps="arm"
1174 armv6t2_deps="arm"
1175 armvfp_deps="arm"
1176 iwmmxt_deps="arm"
1177 neon_deps="arm"
1178
1179 mmi_deps="mips"
1180
1181 altivec_deps="ppc"
1182 ppc4xx_deps="ppc"
1183
1184 vis_deps="sparc"
1185
1186 x86_64_suggest="cmov fast_cmov"
1187 amd3dnow_deps="mmx"
1188 amd3dnowext_deps="amd3dnow"
1189 mmx_deps="x86"
1190 mmx2_deps="mmx"
1191 sse_deps="mmx"
1192 ssse3_deps="sse"
1193 avx_deps="ssse3"
1194
1195 aligned_stack_if_any="ppc x86"
1196 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1197 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1198 fast_unaligned_if_any="armv6 ppc x86"
1199
1200 need_memalign="altivec neon sse"
1201 inline_asm_deps="!tms470"
1202
1203 symver_if_any="symver_asm_label symver_gnu_asm"
1204
1205 # subsystems
1206 dct_select="rdft"
1207 mdct_select="fft"
1208 rdft_select="fft"
1209
1210 # decoders / encoders / hardware accelerators
1211 aac_decoder_select="mdct rdft"
1212 aac_encoder_select="mdct"
1213 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1214 ac3_decoder_select="mdct ac3_parser"
1215 ac3_encoder_select="mdct"
1216 alac_encoder_select="lpc"
1217 amrnb_decoder_select="lsp"
1218 amrwb_decoder_select="lsp"
1219 atrac1_decoder_select="mdct"
1220 atrac3_decoder_select="mdct"
1221 binkaudio_dct_decoder_select="mdct rdft dct"
1222 binkaudio_rdft_decoder_select="mdct rdft"
1223 cavs_decoder_select="golomb"
1224 cook_decoder_select="mdct"
1225 cscd_decoder_suggest="zlib"
1226 dca_decoder_select="mdct"
1227 dnxhd_encoder_select="aandct"
1228 dxa_decoder_select="zlib"
1229 eac3_decoder_select="ac3_decoder"
1230 eamad_decoder_select="aandct"
1231 eatgq_decoder_select="aandct"
1232 eatqi_decoder_select="aandct"
1233 ffv1_decoder_select="golomb"
1234 flac_decoder_select="golomb"
1235 flac_encoder_select="golomb lpc"
1236 flashsv_decoder_select="zlib"
1237 flashsv_encoder_select="zlib"
1238 flv_decoder_select="h263_decoder"
1239 flv_encoder_select="h263_encoder"
1240 fraps_decoder_select="huffman"
1241 h261_encoder_select="aandct"
1242 h263_decoder_select="h263_parser"
1243 h263_encoder_select="aandct"
1244 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1245 h263i_decoder_select="h263_decoder"
1246 h263p_encoder_select="h263_encoder"
1247 h264_decoder_select="golomb h264dsp h264pred"
1248 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1249 h264_dxva2_hwaccel_deps="dxva2api_h"
1250 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1251 h264_vaapi_hwaccel_select="vaapi"
1252 h264_vdpau_decoder_select="vdpau h264_decoder"
1253 imc_decoder_select="fft mdct"
1254 jpegls_decoder_select="golomb"
1255 jpegls_encoder_select="golomb"
1256 ljpeg_encoder_select="aandct"
1257 loco_decoder_select="golomb"
1258 mjpeg_encoder_select="aandct"
1259 mlp_decoder_select="mlp_parser"
1260 mp1float_decoder_select="dct"
1261 mp2float_decoder_select="dct"
1262 mp3adufloat_decoder_select="dct"
1263 mp3float_decoder_select="dct"
1264 mp3on4float_decoder_select="dct"
1265 mpeg1video_encoder_select="aandct"
1266 mpeg2video_encoder_select="aandct"
1267 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1268 mpeg4_encoder_select="h263_encoder"
1269 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1270 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1271 mpeg2_crystalhd_decoder_select="crystalhd"
1272 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1273 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1274 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1275 mpeg4_crystalhd_decoder_select="crystalhd"
1276 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1277 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1278 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1279 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1280 msmpeg4_crystalhd_decoder_select="crystalhd"
1281 msmpeg4v1_decoder_select="h263_decoder"
1282 msmpeg4v1_encoder_select="h263_encoder"
1283 msmpeg4v2_decoder_select="h263_decoder"
1284 msmpeg4v2_encoder_select="h263_encoder"
1285 msmpeg4v3_decoder_select="h263_decoder"
1286 msmpeg4v3_encoder_select="h263_encoder"
1287 nellymoser_decoder_select="mdct"
1288 nellymoser_encoder_select="mdct"
1289 png_decoder_select="zlib"
1290 png_encoder_select="zlib"
1291 qcelp_decoder_select="lsp"
1292 qdm2_decoder_select="mdct rdft"
1293 ra_144_encoder_select="lpc"
1294 rv10_decoder_select="h263_decoder"
1295 rv10_encoder_select="h263_encoder"
1296 rv20_decoder_select="h263_decoder"
1297 rv20_encoder_select="h263_encoder"
1298 rv30_decoder_select="golomb h264pred"
1299 rv40_decoder_select="golomb h264pred"
1300 shorten_decoder_select="golomb"
1301 sipr_decoder_select="lsp"
1302 snow_decoder_select="dwt"
1303 snow_encoder_select="aandct dwt"
1304 sonic_decoder_select="golomb"
1305 sonic_encoder_select="golomb"
1306 sonic_ls_encoder_select="golomb"
1307 svq1_encoder_select="aandct"
1308 svq3_decoder_select="golomb h264dsp h264pred"
1309 svq3_decoder_suggest="zlib"
1310 theora_decoder_select="vp3_decoder"
1311 tiff_decoder_suggest="zlib"
1312 tiff_encoder_suggest="zlib"
1313 truehd_decoder_select="mlp_decoder"
1314 tscc_decoder_select="zlib"
1315 twinvq_decoder_select="mdct lsp"
1316 vc1_decoder_select="h263_decoder"
1317 vc1_crystalhd_decoder_select="crystalhd"
1318 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1319 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1320 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1321 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1322 vorbis_decoder_select="mdct"
1323 vorbis_encoder_select="mdct"
1324 vp6_decoder_select="huffman"
1325 vp6a_decoder_select="vp6_decoder"
1326 vp6f_decoder_select="vp6_decoder"
1327 vp8_decoder_select="h264pred"
1328 wmapro_decoder_select="mdct"
1329 wmav1_decoder_select="mdct"
1330 wmav1_encoder_select="mdct"
1331 wmav2_decoder_select="mdct"
1332 wmav2_encoder_select="mdct"
1333 wmavoice_decoder_select="lsp rdft dct mdct"
1334 wmv1_decoder_select="h263_decoder"
1335 wmv1_encoder_select="h263_encoder"
1336 wmv2_decoder_select="h263_decoder"
1337 wmv2_encoder_select="h263_encoder"
1338 wmv3_decoder_select="vc1_decoder"
1339 wmv3_crystalhd_decoder_select="crystalhd"
1340 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1341 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1342 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1343 zlib_decoder_select="zlib"
1344 zlib_encoder_select="zlib"
1345 zmbv_decoder_select="zlib"
1346 zmbv_encoder_select="zlib"
1347
1348 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1349 vaapi_deps="va_va_h"
1350 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1351
1352 # parsers
1353 h264_parser_select="golomb h264dsp h264pred"
1354
1355 # external libraries
1356 libdirac_decoder_deps="libdirac !libschroedinger"
1357 libdirac_encoder_deps="libdirac"
1358 libfaac_encoder_deps="libfaac"
1359 libgsm_decoder_deps="libgsm"
1360 libgsm_encoder_deps="libgsm"
1361 libgsm_ms_decoder_deps="libgsm"
1362 libgsm_ms_encoder_deps="libgsm"
1363 libmp3lame_encoder_deps="libmp3lame"
1364 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1365 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1366 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1367 libopenjpeg_decoder_deps="libopenjpeg"
1368 libschroedinger_decoder_deps="libschroedinger"
1369 libschroedinger_encoder_deps="libschroedinger"
1370 libspeex_decoder_deps="libspeex"
1371 libtheora_encoder_deps="libtheora"
1372 libvorbis_encoder_deps="libvorbis"
1373 libvpx_decoder_deps="libvpx"
1374 libvpx_encoder_deps="libvpx"
1375 libx264_encoder_deps="libx264"
1376 libxavs_encoder_deps="libxavs"
1377 libxvid_encoder_deps="libxvid"
1378
1379 # demuxers / muxers
1380 ac3_demuxer_select="ac3_parser"
1381 asf_stream_muxer_select="asf_muxer"
1382 avisynth_demuxer_deps="avisynth"
1383 dirac_demuxer_select="dirac_parser"
1384 eac3_demuxer_select="ac3_parser"
1385 flac_demuxer_select="flac_parser"
1386 ipod_muxer_select="mov_muxer"
1387 libnut_demuxer_deps="libnut"
1388 libnut_muxer_deps="libnut"
1389 matroska_audio_muxer_select="matroska_muxer"
1390 matroska_demuxer_suggest="zlib bzlib"
1391 mov_demuxer_suggest="zlib"
1392 mp3_demuxer_select="mpegaudio_parser"
1393 mp4_muxer_select="mov_muxer"
1394 mpegtsraw_demuxer_select="mpegts_demuxer"
1395 mxf_d10_muxer_select="mxf_muxer"
1396 ogg_demuxer_select="golomb"
1397 psp_muxer_select="mov_muxer"
1398 rtp_demuxer_select="sdp_demuxer"
1399 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1400 rtsp_demuxer_select="http_protocol rtpdec"
1401 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1402 sap_demuxer_select="sdp_demuxer"
1403 sap_muxer_select="rtp_muxer rtp_protocol"
1404 sdp_demuxer_select="rtpdec"
1405 spdif_muxer_select="aac_parser"
1406 tg2_muxer_select="mov_muxer"
1407 tgp_muxer_select="mov_muxer"
1408 w64_demuxer_deps="wav_demuxer"
1409
1410 # indevs / outdevs
1411 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1412 alsa_outdev_deps="alsa_asoundlib_h"
1413 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1414 dv1394_indev_deps="dv1394 dv_demuxer"
1415 fbdev_indev_deps="linux_fb_h"
1416 jack_indev_deps="jack_jack_h"
1417 libdc1394_indev_deps="libdc1394"
1418 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1419 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1420 v4l_indev_deps="linux_videodev_h"
1421 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1422 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1423 vfwcap_indev_extralibs="-lavicap32"
1424 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1425 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1426
1427 # protocols
1428 gopher_protocol_deps="network"
1429 http_protocol_deps="network"
1430 http_protocol_select="tcp_protocol"
1431 mmsh_protocol_select="http_protocol"
1432 mmst_protocol_deps="network"
1433 rtmp_protocol_select="tcp_protocol"
1434 rtp_protocol_select="udp_protocol"
1435 tcp_protocol_deps="network"
1436 udp_protocol_deps="network"
1437
1438 # filters
1439 blackframe_filter_deps="gpl"
1440 cropdetect_filter_deps="gpl"
1441 drawtext_filter_deps="libfreetype"
1442 frei0r_filter_deps="frei0r dlopen strtok_r"
1443 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1444 hqdn3d_filter_deps="gpl"
1445 mp_filter_deps="gpl"
1446 scale_filter_deps="swscale"
1447 ocv_filter_deps="libopencv"
1448 yadif_filter_deps="gpl"
1449
1450 # libraries
1451 avdevice_deps="avcodec avformat"
1452 avformat_deps="avcodec"
1453
1454 # programs
1455 ffmpeg_deps="avcodec avformat swscale"
1456 ffmpeg_select="buffer_filter"
1457 ffplay_deps="avcodec avformat swscale sdl"
1458 ffplay_select="rdft"
1459 ffprobe_deps="avcodec avformat"
1460 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1461 ffserver_extralibs='$ldl'
1462
1463 doc_deps="texi2html"
1464
1465 # tests
1466
1467 test_deps(){
1468     suf1=$1
1469     suf2=$2
1470     shift 2
1471     for v; do
1472         dep=${v%=*}
1473         tests=${v#*=}
1474         for name in ${tests}; do
1475             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1476         done
1477     done
1478 }
1479
1480 set_ne_test_deps(){
1481     eval ${1}_be_test_deps="bigendian"
1482     eval ${1}_le_test_deps="!bigendian"
1483 }
1484
1485 test_deps _encoder _decoder                                             \
1486     adpcm_g726=g726                                                     \
1487     adpcm_ima_qt                                                        \
1488     adpcm_ima_wav                                                       \
1489     adpcm_ms                                                            \
1490     adpcm_swf                                                           \
1491     adpcm_yamaha=adpcm_yam                                              \
1492     alac                                                                \
1493     asv1                                                                \
1494     asv2                                                                \
1495     bmp                                                                 \
1496     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1497     dvvideo="dv dv50"                                                   \
1498     ffv1                                                                \
1499     flac                                                                \
1500     flashsv                                                             \
1501     flv                                                                 \
1502     gif                                                                 \
1503     h261                                                                \
1504     h263="h263 h263p"                                                   \
1505     huffyuv                                                             \
1506     jpegls                                                              \
1507     mjpeg="jpg mjpeg ljpeg"                                             \
1508     mp2                                                                 \
1509     mpeg1video="mpeg mpeg1b"                                            \
1510     mpeg2video="mpeg2 mpeg2thread"                                      \
1511     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1512     msmpeg4v3=msmpeg4                                                   \
1513     msmpeg4v2                                                           \
1514     pbm=pbmpipe                                                         \
1515     pcx                                                                 \
1516     pgm="pgm pgmpipe"                                                   \
1517     png                                                                 \
1518     ppm="ppm ppmpipe"                                                   \
1519     rawvideo="rgb yuv"                                                  \
1520     roq                                                                 \
1521     rv10                                                                \
1522     rv20                                                                \
1523     sgi                                                                 \
1524     snow="snow snowll"                                                  \
1525     svq1                                                                \
1526     targa=tga                                                           \
1527     tiff                                                                \
1528     wmav1                                                               \
1529     wmav2                                                               \
1530     wmv1                                                                \
1531     wmv2                                                                \
1532
1533 test_deps _muxer _demuxer                                               \
1534     aiff                                                                \
1535     pcm_alaw=alaw                                                       \
1536     asf                                                                 \
1537     au                                                                  \
1538     avi                                                                 \
1539     dv=dv_fmt                                                           \
1540     ffm                                                                 \
1541     flv=flv_fmt                                                         \
1542     gxf                                                                 \
1543     matroska=mkv                                                        \
1544     mmf                                                                 \
1545     mov                                                                 \
1546     pcm_mulaw=mulaw                                                     \
1547     mxf                                                                 \
1548     nut                                                                 \
1549     ogg                                                                 \
1550     rawvideo=pixfmt                                                     \
1551     rm                                                                  \
1552     swf                                                                 \
1553     mpegts=ts                                                           \
1554     voc                                                                 \
1555     wav                                                                 \
1556     yuv4mpegpipe=yuv4mpeg                                               \
1557
1558 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1559 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1560
1561 set_ne_test_deps pixdesc
1562 set_ne_test_deps pixfmts_copy
1563 set_ne_test_deps pixfmts_crop
1564 set_ne_test_deps pixfmts_hflip
1565 set_ne_test_deps pixfmts_null
1566 set_ne_test_deps pixfmts_pad
1567 set_ne_test_deps pixfmts_scale
1568 set_ne_test_deps pixfmts_vflip
1569
1570 # default parameters
1571
1572 logfile="config.log"
1573
1574 # installation paths
1575 prefix_default="/usr/local"
1576 bindir_default='${prefix}/bin'
1577 datadir_default='${prefix}/share/ffmpeg'
1578 incdir_default='${prefix}/include'
1579 libdir_default='${prefix}/lib'
1580 mandir_default='${prefix}/share/man'
1581 shlibdir_default="$libdir_default"
1582
1583 # toolchain
1584 ar_default="ar"
1585 cc_default="gcc"
1586 cc_version=\"unknown\"
1587 host_cc_default="gcc"
1588 ln_s="ln -sf"
1589 nm_default="nm"
1590 objformat="elf"
1591 ranlib="ranlib"
1592 strip_default="strip"
1593 yasmexe="yasm"
1594 nogas=":"
1595
1596 nm_opts='-g'
1597
1598 # machine
1599 arch_default=$(uname -m)
1600 cpu="generic"
1601
1602 # OS
1603 target_os_default=$(tolower $(uname -s))
1604 host_os=$target_os_default
1605
1606 # configurable options
1607 enable avcodec
1608 enable avdevice
1609 enable avfilter
1610 enable avformat
1611 enable avutil
1612 enable asm
1613 enable debug
1614 enable doc
1615 enable fastdiv
1616 enable ffmpeg
1617 enable ffplay
1618 enable ffprobe
1619 enable ffserver
1620 enable mpegaudio_hp
1621 enable network
1622 enable optimizations
1623 enable protocols
1624 enable static
1625 enable stripping
1626 enable swscale
1627 enable swscale_alpha
1628
1629 # build settings
1630 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1631 FFSERVERLDFLAGS=-Wl,-E
1632 LIBPREF="lib"
1633 LIBSUF=".a"
1634 FULLNAME='$(NAME)$(BUILDSUF)'
1635 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1636 SLIBPREF="lib"
1637 SLIBSUF=".so"
1638 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1639 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1640 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1641 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1642
1643 CC_O='-o $@'
1644
1645 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1646 host_libs='-lm'
1647
1648 target_path='$(CURDIR)'
1649
1650 # since the object filename is not given with the -MM flag, the compiler
1651 # is only able to print the basename, and we must add the path ourselves
1652 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1653 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1654
1655 # find source path
1656 source_path="$(dirname "$0")"
1657 enable source_path_used
1658 if test -f configure; then
1659     source_path="$(pwd)"
1660     disable source_path_used
1661 else
1662     source_path="$(cd "$source_path"; pwd)"
1663     echo "$source_path" | grep -q '[[:blank:]]' &&
1664         die "Out of tree builds are impossible with whitespace in source path."
1665     test -e "$source_path/config.h" &&
1666         die "Out of tree builds are impossible with config.h in source dir."
1667 fi
1668
1669 for v in "$@"; do
1670     r=${v#*=}
1671     l=${v%"$r"}
1672     r=$(sh_quote "$r")
1673     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1674 done
1675
1676 find_things(){
1677     thing=$1
1678     pattern=$2
1679     file=$source_path/$3
1680     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1681 }
1682
1683 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1684 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1685 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1686 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1687 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1688 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1689 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1690 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1691 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1692 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1693 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1694
1695 find_tests(){
1696     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1697 }
1698
1699 ACODEC_TESTS=$(find_tests acodec)
1700 VCODEC_TESTS=$(find_tests vsynth1)
1701 LAVF_TESTS=$(find_tests lavf)
1702 LAVFI_TESTS=$(find_tests lavfi)
1703 SEEK_TESTS=$(find_tests seek seek_)
1704
1705 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1706
1707 for n in $COMPONENT_LIST; do
1708     v=$(toupper ${n%s})_LIST
1709     eval enable \$$v
1710     eval ${n}_if_any="\$$v"
1711 done
1712
1713 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1714
1715 die_unknown(){
1716     echo "Unknown option \"$1\"."
1717     echo "See $0 --help for available options."
1718     exit 1
1719 }
1720
1721 show_list() {
1722     suffix=_$1
1723     shift
1724     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1725     exit 0
1726 }
1727
1728 for opt do
1729     optval="${opt#*=}"
1730     case "$opt" in
1731     --extra-ldflags=*) add_ldflags $optval
1732     ;;
1733     --extra-libs=*) add_extralibs $optval
1734     ;;
1735     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1736     ;;
1737     --enable-debug=*) debuglevel="$optval"
1738     ;;
1739     --disable-everything)
1740     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1741     ;;
1742     --enable-*=*|--disable-*=*)
1743     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1744     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1745     eval list=\$$(toupper $thing)_LIST
1746     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1747     $action $(filter "$name" $list)
1748     ;;
1749     --enable-?*|--disable-?*)
1750     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1751     if is_in $option $COMPONENT_LIST; then
1752         test $action = disable && action=unset
1753         eval $action \$$(toupper ${option%s})_LIST
1754     elif is_in $option $CMDLINE_SELECT; then
1755         $action $option
1756     else
1757         die_unknown $opt
1758     fi
1759     ;;
1760     --list-*)
1761         NAME="${opt#--list-}"
1762         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1763         NAME=${NAME%s}
1764         eval show_list $NAME \$$(toupper $NAME)_LIST
1765     ;;
1766     --help|-h) show_help
1767     ;;
1768     *)
1769     optname="${opt%%=*}"
1770     optname="${optname#--}"
1771     optname=$(echo "$optname" | sed 's/-/_/g')
1772     if is_in $optname $CMDLINE_SET; then
1773         eval $optname='$optval'
1774     elif is_in $optname $CMDLINE_APPEND; then
1775         append $optname "$optval"
1776     else
1777          die_unknown $opt
1778     fi
1779     ;;
1780     esac
1781 done
1782
1783 disabled logging && logfile=/dev/null
1784
1785 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1786 set >> $logfile
1787
1788 test -n "$cross_prefix" && enable cross_compile
1789
1790 if enabled cross_compile; then
1791     test -n "$arch" && test -n "$target_os" ||
1792         die "Must specify target arch and OS when cross-compiling"
1793 fi
1794
1795 set_default arch target_os
1796
1797 ar_default="${cross_prefix}${ar_default}"
1798 cc_default="${cross_prefix}${cc_default}"
1799 nm_default="${cross_prefix}${nm_default}"
1800 ranlib="${cross_prefix}${ranlib}"
1801 strip_default="${cross_prefix}${strip_default}"
1802
1803 sysinclude_default="${sysroot}/usr/include"
1804
1805 set_default cc nm strip sysinclude
1806 enabled cross_compile || host_cc_default=$cc
1807 set_default host_cc
1808
1809 exesuf() {
1810     case $1 in
1811         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1812     esac
1813 }
1814
1815 EXESUF=$(exesuf $target_os)
1816 HOSTEXESUF=$(exesuf $host_os)
1817
1818 # set temporary file name
1819 : ${TMPDIR:=$TEMPDIR}
1820 : ${TMPDIR:=$TMP}
1821 : ${TMPDIR:=/tmp}
1822
1823 if ! check_cmd mktemp -u XXXXXX; then
1824     # simple replacement for missing mktemp
1825     # NOT SAFE FOR GENERAL USE
1826     mktemp(){
1827         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1828     }
1829 fi
1830
1831 tmpfile(){
1832     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1833         (set -C; exec > $tmp) 2>/dev/null ||
1834         die "Unable to create temporary file in $TMPDIR."
1835     append TMPFILES $tmp
1836     eval $1=$tmp
1837 }
1838
1839 trap 'rm -f -- $TMPFILES' EXIT
1840
1841 tmpfile TMPC  .c
1842 tmpfile TMPE  $EXESUF
1843 tmpfile TMPH  .h
1844 tmpfile TMPO  .o
1845 tmpfile TMPS  .S
1846 tmpfile TMPV  .ver
1847 tmpfile TMPSH .sh
1848 tmpfile TMPASM .asm
1849
1850 unset -f mktemp
1851
1852 chmod +x $TMPE
1853
1854 # make sure we can execute files in $TMPDIR
1855 cat > $TMPSH 2>> $logfile <<EOF
1856 #! /bin/sh
1857 EOF
1858 chmod +x $TMPSH >> $logfile 2>&1
1859 if ! $TMPSH >> $logfile 2>&1; then
1860     cat <<EOF
1861 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1862 variable to another directory and make sure that it is not mounted noexec.
1863 EOF
1864     die "Sanity test failed."
1865 fi
1866
1867 filter_cflags=echo
1868 filter_cppflags=echo
1869 filter_asflags=echo
1870
1871 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1872     cc_type=llvm_gcc
1873     cc_version=__VERSION__
1874     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1875     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1876     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1877     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1878     speed_cflags='-O3'
1879     size_cflags='-Os'
1880 elif $cc -v 2>&1 | grep -qi ^gcc; then
1881     cc_type=gcc
1882     cc_version=__VERSION__
1883     gcc_version=$($cc --version | head -n1)
1884     gcc_basever=$($cc -dumpversion)
1885     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1886     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1887     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1888     if ! $cc -dumpversion | grep -q '^2\.'; then
1889         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1890         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1891     fi
1892     speed_cflags='-O3'
1893     size_cflags='-Os'
1894 elif $cc --version 2>/dev/null | grep -q Intel; then
1895     cc_type=icc
1896     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1897     cc_ident=$($cc --version | head -n1)
1898     icc_version=$($cc -dumpversion)
1899     CC_DEPFLAGS='-MMD'
1900     AS_DEPFLAGS='-MMD'
1901     speed_cflags='-O3'
1902     size_cflags='-Os'
1903     noopt_cflags='-O1'
1904 elif $cc -v 2>&1 | grep -q xlc; then
1905     cc_type=xlc
1906     cc_version="AV_STRINGIFY(__IBMC__)"
1907     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1908     speed_cflags='-O5'
1909     size_cflags='-O5 -qcompact'
1910 elif $cc -V 2>/dev/null | grep -q Compaq; then
1911     cc_type=ccc
1912     cc_version="AV_STRINGIFY(__DECC_VER)"
1913     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1914     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1915     debuglevel=3
1916     add_ldflags -Wl,-z,now # calls to libots crash without this
1917     speed_cflags='-fast'
1918     size_cflags='-O1'
1919 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1920     test -d "$sysroot" || die "No valid sysroot specified."
1921     cc_type=armcc
1922     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1923     cc_ident=$($cc --vsn | head -n1)
1924     armcc_conf="$PWD/armcc.conf"
1925     $cc --arm_linux_configure                 \
1926         --arm_linux_config_file="$armcc_conf" \
1927         --configure_sysroot="$sysroot"        \
1928         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1929         die "Error creating armcc configuration file."
1930     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1931     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1932     as_default="${cross_prefix}gcc"
1933     CC_DEPFLAGS='-MMD'
1934     AS_DEPFLAGS='-MMD'
1935     speed_cflags='-O3'
1936     size_cflags='-Os'
1937     filter_asflags="filter_out -W${armcc_opt}*"
1938 elif $cc -version 2>/dev/null | grep -q TMS470; then
1939     cc_type=tms470
1940     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1941     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1942     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1943     CC_O='-fr=$(@D)'
1944     as_default="${cross_prefix}gcc"
1945     ld_default="${cross_prefix}gcc"
1946     TMPO=$(basename $TMPC .c).o
1947     append TMPFILES $TMPO
1948     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1949     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1950     AS_DEPFLAGS='-MMD'
1951     speed_cflags='-O3 -mf=5'
1952     size_cflags='-O3 -mf=2'
1953     filter_cflags=tms470_flags
1954     tms470_flags(){
1955         for flag; do
1956             case $flag in
1957                 -march=*|-mcpu=*)
1958                     case "${flag#*=}" in
1959                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1960                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1961                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1962                         armv6*|arm11*)          echo -mv=6   ;;
1963                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1964                                                 echo -mv=5e  ;;
1965                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1966                     esac
1967                     ;;
1968                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1969                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1970                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1971                 -msoft-float)   echo --float_support=vfplib       ;;
1972                 -O[0-3]|-mf=*)  echo $flag                        ;;
1973                 -g)             echo -g -mn                       ;;
1974                 -pds=*)         echo $flag                        ;;
1975             esac
1976         done
1977     }
1978 elif $cc -v 2>&1 | grep -q clang; then
1979     cc_type=clang
1980     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1981         cc_version=__clang_version__ || cc_version=__VERSION__
1982     cc_ident=$($cc --version | head -n1)
1983     CC_DEPFLAGS='-MMD'
1984     AS_DEPFLAGS='-MMD'
1985     speed_cflags='-O3'
1986     size_cflags='-Os'
1987 elif $cc -V 2>&1 | grep -q Sun; then
1988     cc_type=suncc
1989     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1990     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1991     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1992     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1993     speed_cflags='-O5'
1994     size_cflags='-O5 -xspace'
1995     filter_cflags=suncc_flags
1996     suncc_flags(){
1997         for flag; do
1998             case $flag in
1999                 -march=*|-mcpu=*)
2000                     case "${flag#*=}" in
2001                         native)                   echo -xtarget=native       ;;
2002                         v9|niagara)               echo -xarch=sparc          ;;
2003                         ultrasparc)               echo -xarch=sparcvis       ;;
2004                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2005                         i586|pentium)             echo -xchip=pentium        ;;
2006                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2007                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2008                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2009                         pentium4*)          echo -xtarget=pentium4           ;;
2010                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2011                         *-sse3)             echo -xarch=sse3                 ;;
2012                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2013                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2014                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2015                         k8|opteron|athlon64|athlon-fx)
2016                                                   echo -xarch=sse2a          ;;
2017                         athlon*)                  echo -xarch=pentium_proa   ;;
2018                     esac
2019                     ;;
2020                 -std=c99)             echo -xc99              ;;
2021                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2022                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2023                 -W*,*)                echo $flag              ;;
2024                 -f*-*|-W*)                                    ;;
2025                 *)                    echo $flag              ;;
2026             esac
2027         done
2028     }
2029 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2030     cc_type=pathscale
2031     cc_version=__PATHSCALE__
2032     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2033     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2034     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2035     speed_cflags='-O2'
2036     size_cflags='-Os'
2037 elif $cc -v 2>&1 | grep -q Open64; then
2038     cc_type=open64
2039     cc_version=__OPEN64__
2040     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2041     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2042     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2043     speed_cflags='-O2'
2044     size_cflags='-Os'
2045 fi
2046
2047 test -n "$cc_type" && enable $cc_type ||
2048     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2049
2050 : ${as_default:=$cc}
2051 : ${dep_cc_default:=$cc}
2052 : ${ld_default:=$cc}
2053 set_default ar as dep_cc ld
2054
2055 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2056 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2057
2058 add_cflags $extra_cflags
2059 add_asflags $extra_cflags
2060
2061 if test -n "$sysroot"; then
2062     case "$cc_type" in
2063         gcc|llvm_gcc|clang)
2064             add_cppflags --sysroot="$sysroot"
2065             add_ldflags --sysroot="$sysroot"
2066         ;;
2067         tms470)
2068             add_cppflags -I"$sysinclude"
2069             add_ldflags  --sysroot="$sysroot"
2070         ;;
2071     esac
2072 fi
2073
2074 if test "$cpu" = host; then
2075     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2076
2077     case "$cc_type" in
2078         gcc|llvm_gcc)
2079             check_native(){
2080                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2081                 sed -n "/$1=/{
2082                             s/.*$1=\\([^ ]*\\).*/\\1/
2083                             p
2084                             q
2085                         }" $TMPE
2086             }
2087             cpu=$(check_native -march || check_native -mcpu)
2088         ;;
2089     esac
2090
2091     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2092 fi
2093
2094 # Deal with common $arch aliases
2095 case "$arch" in
2096     arm*)
2097         arch="arm"
2098     ;;
2099     mips|mipsel|IP*)
2100         arch="mips"
2101     ;;
2102     mips64*)
2103         arch="mips"
2104         subarch="mips64"
2105     ;;
2106     parisc|hppa)
2107         arch="parisc"
2108     ;;
2109     parisc64|hppa64)
2110         arch="parisc"
2111         subarch="parisc64"
2112     ;;
2113     "Power Macintosh"|ppc|powerpc)
2114         arch="ppc"
2115     ;;
2116     ppc64|powerpc64)
2117         arch="ppc"
2118         subarch="ppc64"
2119     ;;
2120     s390|s390x)
2121         arch="s390"
2122     ;;
2123     sh4|sh)
2124         arch="sh4"
2125     ;;
2126     sun4u|sparc64)
2127         arch="sparc"
2128         subarch="sparc64"
2129     ;;
2130     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2131         arch="x86"
2132     ;;
2133 esac
2134
2135 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2136 enable $arch
2137
2138 # Add processor-specific flags
2139 if test "$cpu" = generic; then
2140     : do nothing
2141 elif enabled ppc; then
2142
2143     case $(tolower $cpu) in
2144         601|ppc601|powerpc601)
2145             cpuflags="-mcpu=601"
2146             disable altivec
2147         ;;
2148         603*|ppc603*|powerpc603*)
2149             cpuflags="-mcpu=603"
2150             disable altivec
2151         ;;
2152         604*|ppc604*|powerpc604*)
2153             cpuflags="-mcpu=604"
2154             disable altivec
2155         ;;
2156         g3|75*|ppc75*|powerpc75*)
2157             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2158             disable altivec
2159         ;;
2160         g4|745*|ppc745*|powerpc745*)
2161             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2162         ;;
2163         74*|ppc74*|powerpc74*)
2164             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2165         ;;
2166         g5|970|ppc970|powerpc970|power4*)
2167             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2168         ;;
2169         cell)
2170             cpuflags="-mcpu=cell"
2171             enable ldbrx
2172         ;;
2173         e500v2)
2174             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2175             disable altivec
2176         ;;
2177         e500)
2178             cpuflags="-mcpu=8540 -mhard-float"
2179             disable altivec
2180         ;;
2181     esac
2182
2183 elif enabled x86; then
2184
2185     case $cpu in
2186         i[345]86|pentium)
2187             cpuflags="-march=$cpu"
2188             disable mmx
2189         ;;
2190         # targets that do NOT support conditional mov (cmov)
2191         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2192             cpuflags="-march=$cpu"
2193             disable cmov
2194         ;;
2195         # targets that do support conditional mov (cmov)
2196         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2197             cpuflags="-march=$cpu"
2198             enable cmov
2199             enable fast_cmov
2200         ;;
2201         # targets that do support conditional mov but on which it's slow
2202         pentium4|pentium4m|prescott|nocona)
2203             cpuflags="-march=$cpu"
2204             enable cmov
2205             disable fast_cmov
2206         ;;
2207     esac
2208
2209 elif enabled sparc; then
2210
2211     case $cpu in
2212         niagara)
2213             cpuflags="-mcpu=$cpu"
2214             disable vis
2215         ;;
2216         sparc64)
2217             cpuflags="-mcpu=v9"
2218         ;;
2219     esac
2220
2221 elif enabled arm; then
2222
2223     case $cpu in
2224         armv*)
2225             cpuflags="-march=$cpu"
2226             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2227         ;;
2228         *)
2229             cpuflags="-mcpu=$cpu"
2230             case $cpu in
2231                 cortex-a*)                               subarch=armv7a  ;;
2232                 cortex-r*)                               subarch=armv7r  ;;
2233                 cortex-m*)                               subarch=armv7m  ;;
2234                 arm11*)                                  subarch=armv6   ;;
2235                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2236                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2237             esac
2238         ;;
2239     esac
2240
2241 elif enabled alpha; then
2242
2243     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2244
2245 elif enabled bfin; then
2246
2247     cpuflags="-mcpu=$cpu"
2248
2249 elif enabled mips; then
2250
2251     cpuflags="-march=$cpu"
2252
2253 elif enabled avr32; then
2254
2255     case $cpu in
2256         ap7[02]0[0-2])
2257             subarch="avr32_ap"
2258             cpuflags="-mpart=$cpu"
2259         ;;
2260         ap)
2261             subarch="avr32_ap"
2262             cpuflags="-march=$cpu"
2263         ;;
2264         uc3[ab]*)
2265             subarch="avr32_uc"
2266             cpuflags="-mcpu=$cpu"
2267         ;;
2268         uc)
2269             subarch="avr32_uc"
2270             cpuflags="-march=$cpu"
2271         ;;
2272     esac
2273
2274 fi
2275
2276 add_cflags $cpuflags
2277 add_asflags $cpuflags
2278
2279 # compiler sanity check
2280 check_exec <<EOF
2281 int main(void){ return 0; }
2282 EOF
2283 if test "$?" != 0; then
2284     echo "$cc is unable to create an executable file."
2285     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2286         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2287         echo "Only do this if you know what cross compiling means."
2288     fi
2289     die "C compiler test failed."
2290 fi
2291
2292 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2293 check_cflags -std=c99
2294 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2295 #include <stdlib.h>
2296 EOF
2297 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2298 #include <stdlib.h>
2299 EOF
2300
2301 check_host_cflags -std=c99
2302
2303 case "$arch" in
2304     alpha|ia64|mips|parisc|sparc)
2305         spic=$shared
2306     ;;
2307     x86)
2308         subarch="x86_32"
2309         check_cc <<EOF && subarch="x86_64"
2310         int test[(int)sizeof(char*) - 7];
2311 EOF
2312         if test "$subarch" = "x86_64"; then
2313             spic=$shared
2314         fi
2315     ;;
2316 esac
2317
2318 enable $subarch
2319 enabled spic && enable pic
2320
2321 # OS specific
2322 case $target_os in
2323     haiku)
2324         prefix_default="/boot/common"
2325         network_extralibs="-lnetwork"
2326         host_libs=
2327         ;;
2328     sunos)
2329         FFSERVERLDFLAGS=""
2330         SHFLAGS='-shared -Wl,-h,$$(@F)'
2331         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2332         network_extralibs="-lsocket -lnsl"
2333         add_cppflags -D__EXTENSIONS__
2334         nm_opts='-P -g'
2335         ;;
2336     netbsd)
2337         disable symver
2338         oss_indev_extralibs="-lossaudio"
2339         oss_outdev_extralibs="-lossaudio"
2340         add_cppflags -D_XOPEN_SOURCE=600
2341         ;;
2342     openbsd)
2343         enable malloc_aligned
2344         # On OpenBSD 4.5. the compiler does not use PIC unless
2345         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2346         # however the generated executable will not do anything
2347         # (simply quits with exit-code 1, no crash, no output).
2348         # Thus explicitly enable PIC here.
2349         enable pic
2350         disable symver
2351         SHFLAGS='-shared'
2352         oss_indev_extralibs="-lossaudio"
2353         oss_outdev_extralibs="-lossaudio"
2354         ;;
2355     dragonfly)
2356         enable malloc_aligned
2357         disable symver
2358         ;;
2359     freebsd)
2360         enable malloc_aligned
2361         ;;
2362     bsd/os)
2363         add_extralibs -lpoll -lgnugetopt
2364         strip="strip -d"
2365         ;;
2366     darwin)
2367         enable malloc_aligned
2368         gas="gas-preprocessor.pl $cc"
2369         enabled ppc && add_asflags -force_cpusubtype_ALL
2370         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2371         strip="${strip} -x"
2372         add_ldflags -Wl,-dynamic,-search_paths_first
2373         SLIBSUF=".dylib"
2374         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2375         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2376         FFSERVERLDFLAGS=-Wl,-bind_at_load
2377         objformat="macho"
2378         enabled x86_64 && objformat="macho64"
2379         enabled_any pic shared ||
2380             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2381         ;;
2382     mingw32*)
2383         if test $target_os = "mingw32ce"; then
2384             disable network
2385         else
2386             target_os=mingw32
2387         fi
2388         LIBTARGET=i386
2389         if enabled x86_64; then
2390             enable malloc_aligned
2391             LIBTARGET=x64
2392         elif enabled arm; then
2393             LIBTARGET=arm
2394         fi
2395         shlibdir_default="$bindir_default"
2396         disable ffserver
2397         SLIBPREF=""
2398         SLIBSUF=".dll"
2399         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2400         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2401         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2402         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2403             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2404             install -d "$(LIBDIR)"; \
2405             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2406         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2407         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'
2408         objformat="win32"
2409         enable dos_paths
2410         check_cflags -fno-common
2411         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2412                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2413                 die "ERROR: MinGW runtime version must be >= 3.15."
2414         ;;
2415     cygwin*)
2416         target_os=cygwin
2417         shlibdir_default="$bindir_default"
2418         SLIBPREF="cyg"
2419         SLIBSUF=".dll"
2420         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2421         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2422         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2423         objformat="win32"
2424         enable dos_paths
2425         check_cflags -fno-common
2426         ;;
2427     *-dos|freedos|opendos)
2428         disable ffplay ffserver
2429         disable $INDEV_LIST $OUTDEV_LIST
2430         network_extralibs="-lsocket"
2431         objformat="coff"
2432         enable dos_paths
2433         ;;
2434     linux)
2435         enable dv1394
2436         ;;
2437     irix*)
2438         target_os=irix
2439         ranlib="echo ignoring ranlib"
2440         ;;
2441     os/2*)
2442         strip="lxlite -CS"
2443         ln_s="cp -f"
2444         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2445         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2446         FFSERVERLDFLAGS=""
2447         LIBSUF="_s.a"
2448         SLIBPREF=""
2449         SLIBSUF=".dll"
2450         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2451         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2452         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2453           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2454           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2455           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2456           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2457           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2458         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2459           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2460         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2461         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2462         enable dos_paths
2463         ;;
2464     gnu/kfreebsd)
2465         ;;
2466     gnu)
2467         ;;
2468     qnx)
2469         add_cppflags -D_QNX_SOURCE
2470         network_extralibs="-lsocket"
2471         ;;
2472     none)
2473         ;;
2474     *)
2475         die "Unknown OS '$target_os'."
2476         ;;
2477 esac
2478
2479 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2480
2481 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2482
2483 set_default $PATHS_LIST
2484
2485 # we need to build at least one lib type
2486 if ! enabled_any static shared; then
2487     cat <<EOF
2488 At least one library type must be built.
2489 Specify --enable-static to build the static libraries or --enable-shared to
2490 build the shared libraries as well. To only build the shared libraries specify
2491 --disable-static in addition to --enable-shared.
2492 EOF
2493     exit 1;
2494 fi
2495
2496 disabled static && LIBNAME=""
2497
2498 die_license_disabled() {
2499     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2500 }
2501
2502 die_license_disabled gpl libx264
2503 die_license_disabled gpl libxavs
2504 die_license_disabled gpl libxvid
2505 die_license_disabled gpl postproc
2506 die_license_disabled gpl x11grab
2507
2508 die_license_disabled nonfree libfaac
2509
2510 die_license_disabled version3 libopencore_amrnb
2511 die_license_disabled version3 libopencore_amrwb
2512
2513 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2514
2515 disabled optimizations || check_cflags -fomit-frame-pointer
2516
2517 enable_pic() {
2518     enable pic
2519     add_cppflags -DPIC
2520     add_cflags   -fPIC
2521     add_asflags  -fPIC
2522 }
2523
2524 enabled pic && enable_pic
2525
2526 check_cc <<EOF || die "Symbol mangling check failed."
2527 int ff_extern;
2528 EOF
2529 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2530 extern_prefix=${sym%%ff_extern*}
2531
2532 check_cc <<EOF && enable inline_asm
2533 void foo(void) { __asm__ volatile ("" ::); }
2534 EOF
2535
2536 _restrict=
2537 for restrict_keyword in restrict __restrict__ __restrict; do
2538     check_cc <<EOF && _restrict=$restrict_keyword && break
2539 void foo(char * $restrict_keyword p);
2540 EOF
2541 done
2542
2543 check_cc <<EOF && enable attribute_packed
2544 struct { int x; } __attribute__((packed)) x;
2545 EOF
2546
2547 check_cc <<EOF && enable attribute_may_alias
2548 union { int x; } __attribute__((may_alias)) x;
2549 EOF
2550
2551 check_cc <<EOF || die "endian test failed"
2552 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2553 EOF
2554 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2555
2556 if enabled alpha; then
2557
2558     check_cflags -mieee
2559
2560 elif enabled arm; then
2561
2562     check_cflags -marm
2563     nogas=die
2564
2565     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2566         enable vfp_args
2567     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2568         case "${cross_prefix:-$cc}" in
2569             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2570             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2571 __asm__ (".eabi_attribute 28, 1");
2572 int main(void) { return 0; }
2573 EOF
2574         esac
2575         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2576     fi
2577
2578     # We have to check if pld is a nop and disable it.
2579     check_asm pld '"pld [r0]"'
2580
2581     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2582     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2583     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2584     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2585     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2586     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2587
2588     enabled_all armv6t2 shared !pic && enable_pic
2589
2590 elif enabled mips; then
2591
2592     check_asm loongson '"dmult.g $1, $2, $3"'
2593     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2594
2595 elif enabled ppc; then
2596
2597     enable local_aligned_8 local_aligned_16
2598
2599     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2600     check_asm ibm_asm   '"add 0, 0, 0"'
2601     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2602     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2603
2604     # AltiVec flags: The FSF version of GCC differs from the Apple version
2605     if enabled altivec; then
2606         nogas=warn
2607         check_cflags -maltivec -mabi=altivec &&
2608         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2609         check_cflags -faltivec
2610
2611         # check if our compiler supports Motorola AltiVec C API
2612         check_cc <<EOF || disable altivec
2613 $inc_altivec_h
2614 int main(void) {
2615     vector signed int v1, v2, v3;
2616     v1 = vec_add(v2,v3);
2617     return 0;
2618 }
2619 EOF
2620
2621         # check if our compiler supports braces for vector declarations
2622         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2623 $inc_altivec_h
2624 int main (void) { (vector int) {1}; return 0; }
2625 EOF
2626     fi
2627
2628 elif enabled sparc; then
2629
2630     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2631         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2632
2633 elif enabled x86; then
2634
2635     enable local_aligned_8 local_aligned_16
2636
2637     # check whether EBP is available on x86
2638     # As 'i' is stored on the stack, this program will crash
2639     # if the base pointer is used to access it because the
2640     # base pointer is cleared in the inline assembly code.
2641     check_exec_crash <<EOF && enable ebp_available
2642     volatile int i=0;
2643     __asm__ volatile (
2644         "xorl %%ebp, %%ebp"
2645     ::: "%ebp");
2646     return i;
2647 EOF
2648
2649     # check whether EBX is available on x86
2650     check_asm ebx_available '""::"b"(0)' &&
2651         check_asm ebx_available '"":::"%ebx"'
2652
2653     # check whether xmm clobbers are supported
2654     check_asm xmm_clobbers '"":::"%xmm0"'
2655
2656     # check whether more than 10 operands are supported
2657     check_cc <<EOF && enable ten_operands
2658 int main(void) {
2659     int x=0;
2660     __asm__ volatile(
2661         ""
2662         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2663     );
2664     return 0;
2665 }
2666 EOF
2667
2668     # check whether binutils is new enough to compile SSSE3/MMX2
2669     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2670     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2671
2672     check_asm bswap '"bswap %%eax" ::: "%eax"'
2673
2674     if ! disabled_any asm mmx yasm; then
2675         if check_cmd $yasmexe --version; then
2676             enabled x86_64 && yasm_extra="-m amd64"
2677             yasm_debug="-g dwarf2"
2678         elif check_cmd nasm -v; then
2679             yasmexe=nasm
2680             yasm_debug="-g -F dwarf"
2681             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2682         fi
2683
2684         YASMFLAGS="-f $objformat $yasm_extra"
2685         enabled pic               && append YASMFLAGS "-DPIC"
2686         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2687         case "$objformat" in
2688             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2689         esac
2690
2691         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2692             die "yasm not found, use --disable-yasm for a crippled build"
2693         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2694     fi
2695
2696     case "$cpu" in
2697         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2698             disable fast_clz
2699         ;;
2700     esac
2701
2702 fi
2703
2704 if enabled asm; then
2705     as=${gas:=$as}
2706     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2707         $nogas "GNU assembler not found, install gas-preprocessor"
2708 fi
2709
2710 if check_func dlopen; then
2711     ldl=
2712 elif check_func dlopen -ldl; then
2713     ldl=-ldl
2714 fi
2715
2716 if enabled network; then
2717     check_type "sys/types.h sys/socket.h" socklen_t
2718     check_type netdb.h "struct addrinfo"
2719     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2720     check_type netinet/in.h "struct sockaddr_in6"
2721     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2722     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2723     # Prefer arpa/inet.h over winsock2
2724     if check_header arpa/inet.h ; then
2725         check_func closesocket
2726     elif check_header winsock2.h ; then
2727         check_func_headers winsock2.h closesocket -lws2 && \
2728             network_extralibs="-lws2" || \
2729         { check_func_headers winsock2.h closesocket -lws2_32 && \
2730             network_extralibs="-lws2_32"; }
2731         check_type ws2tcpip.h socklen_t
2732         check_type ws2tcpip.h "struct addrinfo"
2733         check_type ws2tcpip.h "struct ipv6_mreq"
2734         check_type ws2tcpip.h "struct sockaddr_in6"
2735         check_type ws2tcpip.h "struct sockaddr_storage"
2736         check_struct winsock2.h "struct sockaddr" sa_len
2737     else
2738         disable network
2739     fi
2740 fi
2741
2742 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2743 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2744
2745 check_func  fcntl
2746 check_func  fork
2747 check_func  getaddrinfo $network_extralibs
2748 check_func  gethrtime
2749 check_func  getrusage
2750 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2751 check_func  inet_aton $network_extralibs
2752 check_func  isatty
2753 check_func  localtime_r
2754 check_func  ${malloc_prefix}memalign            && enable memalign
2755 check_func  mkstemp
2756 check_func  mmap
2757 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2758 check_func  setrlimit
2759 check_func  strerror_r
2760 check_func  strtok_r
2761 check_func_headers io.h setmode
2762 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2763 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2764 check_func_headers windows.h GetProcessTimes
2765 check_func_headers windows.h MapViewOfFile
2766 check_func_headers windows.h VirtualAlloc
2767
2768 check_header conio.h
2769 check_header dlfcn.h
2770 check_header dxva2api.h
2771 check_header libcrystalhd/libcrystalhd_if.h
2772 check_header malloc.h
2773 check_header poll.h
2774 check_header sys/mman.h
2775 check_header sys/resource.h
2776 check_header sys/select.h
2777 check_header termios.h
2778 check_header vdpau/vdpau.h
2779 check_header vdpau/vdpau_x11.h
2780 check_header X11/extensions/XvMClib.h
2781
2782 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2783
2784 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2785      enabled_any $need_memalign ; then
2786     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2787 fi
2788
2789 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2790 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2791
2792 # check for some common methods of building with pthread support
2793 # do this before the optional library checks as some of them require pthreads
2794 if ! disabled pthreads && ! enabled w32threads; then
2795     enable pthreads
2796     if check_func pthread_create; then
2797         :
2798     elif check_func pthread_create -pthread; then
2799         add_cflags -pthread
2800         add_extralibs -pthread
2801     elif check_func pthread_create -pthreads; then
2802         add_cflags -pthreads
2803         add_extralibs -pthreads
2804     elif check_func pthread_create -lpthreadGC2; then
2805         add_extralibs -lpthreadGC2
2806     elif ! check_lib pthread.h pthread_create -lpthread; then
2807         disable pthreads
2808     fi
2809 fi
2810
2811 for thread in $THREADS_LIST; do
2812     if enabled $thread; then
2813         test -n "$thread_type" &&
2814             die "ERROR: Only one thread type must be selected." ||
2815             thread_type="$thread"
2816     fi
2817 done
2818
2819 check_lib math.h sin -lm
2820 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsGetVersion -lcrystalhd
2821 disabled vaapi || check_lib va/va.h vaInitialize -lva
2822
2823 check_mathfunc exp2
2824 check_mathfunc exp2f
2825 check_mathfunc llrint
2826 check_mathfunc llrintf
2827 check_mathfunc log2
2828 check_mathfunc log2f
2829 check_mathfunc lrint
2830 check_mathfunc lrintf
2831 check_mathfunc round
2832 check_mathfunc roundf
2833 check_mathfunc truncf
2834
2835 # these are off by default, so fail if requested and not available
2836 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2837 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2838 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2839                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2840                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2841 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2842 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2843 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2844 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2845 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2846 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2847 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2848 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2849                         die "ERROR: libopencv not found"; }
2850 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2851 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2852                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2853 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2854                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2855 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2856 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2857 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2858 enabled libvpx     && {
2859     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2860                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2861     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2862                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2863 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2864                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2865                         die "ERROR: libx264 version must be >= 0.99."; }
2866 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2867 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2868 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2869
2870 # libdc1394 check
2871 if enabled libdc1394; then
2872     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2873         enable libdc1394_2; } ||
2874     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2875         enable libdc1394_1; } ||
2876     die "ERROR: No version of libdc1394 found "
2877 fi
2878
2879 SDL_CONFIG="${cross_prefix}sdl-config"
2880 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2881     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2882     sdl_libs=$("${SDL_CONFIG}" --libs)
2883     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2884     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2885     enable sdl &&
2886     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2887 fi
2888
2889 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2890
2891 check_header linux/fb.h
2892 check_header linux/videodev.h
2893 check_header linux/videodev2.h
2894 check_header sys/videoio.h
2895
2896 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2897 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2898 # w32api 3.12 had it defined wrong
2899 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2900
2901 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2902 { check_header dev/bktr/ioctl_meteor.h &&
2903   check_header dev/bktr/ioctl_bt848.h; } ||
2904 { check_header machine/ioctl_meteor.h &&
2905   check_header machine/ioctl_bt848.h; } ||
2906 { check_header dev/video/meteor/ioctl_meteor.h &&
2907   check_header dev/video/bktr/ioctl_bt848.h; } ||
2908 check_header dev/ic/bt8xx.h
2909
2910 check_header sys/soundcard.h
2911 check_header soundcard.h
2912
2913 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2914
2915 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2916
2917 enabled x11grab                         &&
2918 check_header X11/Xlib.h                 &&
2919 check_header X11/extensions/XShm.h      &&
2920 check_header X11/extensions/Xfixes.h    &&
2921 check_func XOpenDisplay -lX11           &&
2922 check_func XShmCreateImage -lX11 -lXext &&
2923 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2924
2925 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2926 check_cpp_condition \
2927     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2928     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2929       disable vdpau; }
2930 fi
2931
2932 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2933
2934 # add some useful compiler flags if supported
2935 check_cflags -Wdeclaration-after-statement
2936 check_cflags -Wall
2937 check_cflags -Wno-parentheses
2938 check_cflags -Wno-switch
2939 check_cflags -Wdisabled-optimization
2940 check_cflags -Wpointer-arith
2941 check_cflags -Wredundant-decls
2942 check_cflags -Wno-pointer-sign
2943 check_cflags -Wcast-qual
2944 check_cflags -Wwrite-strings
2945 check_cflags -Wtype-limits
2946 check_cflags -Wundef
2947 check_cflags -Wmissing-prototypes
2948 enabled extra_warnings && check_cflags -Winline
2949
2950 # add some linker flags
2951 check_ldflags -Wl,--warn-common
2952 check_ldflags -Wl,--as-needed
2953 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2954 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2955
2956 echo "X{};" > $TMPV
2957 if test_ldflags -Wl,--version-script,$TMPV; then
2958     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2959     check_cc <<EOF && enable symver_asm_label
2960 void ff_foo(void) __asm__ ("av_foo@VERSION");
2961 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2962 EOF
2963     check_cc <<EOF && enable symver_gnu_asm
2964 __asm__(".symver ff_foo,av_foo@VERSION");
2965 void ff_foo(void) {}
2966 EOF
2967 fi
2968
2969 if enabled small; then
2970     add_cflags $size_cflags
2971     optimizations="small"
2972 elif enabled optimizations; then
2973     add_cflags $speed_cflags
2974 else
2975     add_cflags $noopt_cflags
2976 fi
2977 check_cflags -fno-math-errno
2978 check_cflags -fno-signed-zeros
2979
2980 if enabled icc; then
2981     # Just warnings, no remarks
2982     check_cflags -w1
2983     # -wd: Disable following warnings
2984     # 144, 167, 556: -Wno-pointer-sign
2985     # 10006: ignoring unknown option -fno-signed-zeros
2986     # 10148: ignoring unknown option -Wno-parentheses
2987     # 10156: ignoring option '-W'; no argument required
2988     check_cflags -wd144,167,556,10006,10148,10156
2989     # 11030: Warning unknown option --as-needed
2990     # 10156: ignoring option '-export'; no argument required
2991     check_ldflags -wd10156,11030
2992     # Allow to compile with optimizations
2993     check_ldflags -march=$cpu
2994     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2995     enable ebp_available
2996     if enabled x86_32; then
2997         test ${icc_version%%.*} -ge 11 && \
2998             check_cflags -falign-stack=maintain-16-byte || \
2999             disable aligned_stack
3000     fi
3001 elif enabled ccc; then
3002     # disable some annoying warnings
3003     add_cflags -msg_disable cvtu32to64
3004     add_cflags -msg_disable embedcomment
3005     add_cflags -msg_disable needconstext
3006     add_cflags -msg_disable nomainieee
3007     add_cflags -msg_disable ptrmismatch1
3008     add_cflags -msg_disable unreachcode
3009 elif enabled gcc; then
3010     check_cflags -fno-tree-vectorize
3011     check_cflags -Werror=implicit-function-declaration
3012     check_cflags -Werror=missing-prototypes
3013 elif enabled llvm_gcc; then
3014     check_cflags -mllvm -stack-alignment=16
3015 elif enabled clang; then
3016     check_cflags -mllvm -stack-alignment=16
3017     check_cflags -Qunused-arguments
3018 elif enabled armcc; then
3019     # 2523: use of inline assembler is deprecated
3020     add_cflags -W${armcc_opt},--diag_suppress=2523
3021     add_cflags -W${armcc_opt},--diag_suppress=1207
3022     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3023     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3024 elif enabled tms470; then
3025     add_cflags -pds=824 -pds=837
3026 elif enabled pathscale; then
3027     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3028 fi
3029
3030 enabled_any $THREADS_LIST      && enable threads
3031
3032 check_deps $CONFIG_LIST       \
3033            $CONFIG_EXTRA      \
3034            $HAVE_LIST         \
3035            $DECODER_LIST      \
3036            $ENCODER_LIST      \
3037            $HWACCEL_LIST      \
3038            $PARSER_LIST       \
3039            $BSF_LIST          \
3040            $DEMUXER_LIST      \
3041            $MUXER_LIST        \
3042            $FILTER_LIST       \
3043            $INDEV_LIST        \
3044            $OUTDEV_LIST       \
3045            $PROTOCOL_LIST     \
3046            $ACODEC_TESTS      \
3047            $VCODEC_TESTS      \
3048            $LAVF_TESTS        \
3049            $LAVFI_TESTS       \
3050            $SEEK_TESTS        \
3051
3052 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3053
3054 echo "install prefix            $prefix"
3055 echo "source path               $source_path"
3056 echo "C compiler                $cc"
3057 echo "ARCH                      $arch ($cpu)"
3058 if test "$build_suffix" != ""; then
3059     echo "build suffix              $build_suffix"
3060 fi
3061 if test "$extra_version" != ""; then
3062     echo "version string suffix     $extra_version"
3063 fi
3064 echo "big-endian                ${bigendian-no}"
3065 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3066 if enabled x86; then
3067     echo "yasm                      ${yasm-no}"
3068     echo "MMX enabled               ${mmx-no}"
3069     echo "MMX2 enabled              ${mmx2-no}"
3070     echo "3DNow! enabled            ${amd3dnow-no}"
3071     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3072     echo "SSE enabled               ${sse-no}"
3073     echo "SSSE3 enabled             ${ssse3-no}"
3074     echo "CMOV enabled              ${cmov-no}"
3075     echo "CMOV is fast              ${fast_cmov-no}"
3076     echo "EBX available             ${ebx_available-no}"
3077     echo "EBP available             ${ebp_available-no}"
3078     echo "10 operands supported     ${ten_operands-no}"
3079 fi
3080 if enabled arm; then
3081     echo "ARMv5TE enabled           ${armv5te-no}"
3082     echo "ARMv6 enabled             ${armv6-no}"
3083     echo "ARMv6T2 enabled           ${armv6t2-no}"
3084     echo "ARM VFP enabled           ${armvfp-no}"
3085     echo "IWMMXT enabled            ${iwmmxt-no}"
3086     echo "NEON enabled              ${neon-no}"
3087 fi
3088 if enabled mips; then
3089     echo "MMI enabled               ${mmi-no}"
3090 fi
3091 if enabled ppc; then
3092     echo "AltiVec enabled           ${altivec-no}"
3093     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3094     echo "dcbzl available           ${dcbzl-no}"
3095 fi
3096 if enabled sparc; then
3097     echo "VIS enabled               ${vis-no}"
3098 fi
3099 echo "debug symbols             ${debug-no}"
3100 echo "strip symbols             ${stripping-no}"
3101 echo "optimizations             ${optimizations-no}"
3102 echo "static                    ${static-no}"
3103 echo "shared                    ${shared-no}"
3104 echo "postprocessing support    ${postproc-no}"
3105 echo "new filter support        ${avfilter-no}"
3106 echo "network support           ${network-no}"
3107 echo "threading support         ${thread_type-no}"
3108 echo "SDL support               ${sdl-no}"
3109 echo "Sun medialib support      ${mlib-no}"
3110 echo "AVISynth enabled          ${avisynth-no}"
3111 echo "frei0r enabled            ${frei0r-no}"
3112 echo "libdc1394 support         ${libdc1394-no}"
3113 echo "libdirac enabled          ${libdirac-no}"
3114 echo "libfaac enabled           ${libfaac-no}"
3115 echo "libgsm enabled            ${libgsm-no}"
3116 echo "libmp3lame enabled        ${libmp3lame-no}"
3117 echo "libnut enabled            ${libnut-no}"
3118 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3119 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3120 echo "libopencv support         ${libopencv-no}"
3121 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3122 echo "librtmp enabled           ${librtmp-no}"
3123 echo "libschroedinger enabled   ${libschroedinger-no}"
3124 echo "libspeex enabled          ${libspeex-no}"
3125 echo "libtheora enabled         ${libtheora-no}"
3126 echo "libvorbis enabled         ${libvorbis-no}"
3127 echo "libvpx enabled            ${libvpx-no}"
3128 echo "libx264 enabled           ${libx264-no}"
3129 echo "libxavs enabled           ${libxavs-no}"
3130 echo "libxvid enabled           ${libxvid-no}"
3131 echo "zlib enabled              ${zlib-no}"
3132 echo "bzlib enabled             ${bzlib-no}"
3133 echo
3134
3135 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3136     echo "Enabled ${type}s:"
3137     eval list=\$$(toupper $type)_LIST
3138     print_enabled '_*' $list | sort | pr -3 -t
3139     echo
3140 done
3141
3142 license="LGPL version 2.1 or later"
3143 if enabled nonfree; then
3144     license="nonfree and unredistributable"
3145 elif enabled gplv3; then
3146     license="GPL version 3 or later"
3147 elif enabled lgplv3; then
3148     license="LGPL version 3 or later"
3149 elif enabled gpl; then
3150     license="GPL version 2 or later"
3151 fi
3152
3153 echo "License: $license"
3154
3155 echo "Creating config.mak and config.h..."
3156
3157 # build tree in object directory if source path is different from current one
3158 if enabled source_path_used; then
3159     DIRS="
3160         doc
3161         libavcodec
3162         libavcodec/$arch
3163         libavdevice
3164         libavfilter
3165         libavfilter/$arch
3166         libavfilter/libmpcodecs
3167         libavfilter/libmpcodecs/libvo
3168         libavformat
3169         libavutil
3170         libavutil/$arch
3171         libpostproc
3172         libswscale
3173         libswscale/$arch
3174         tests
3175         tools
3176     "
3177     FILES="
3178         Makefile
3179         common.mak
3180         subdir.mak
3181         doc/texi2pod.pl
3182         libavcodec/Makefile
3183         libavcodec/${arch}/Makefile
3184         libavdevice/Makefile
3185         libavfilter/Makefile
3186         libavfilter/${arch}/Makefile
3187         libavformat/Makefile
3188         libavutil/Makefile
3189         libpostproc/Makefile
3190         libswscale/Makefile
3191     "
3192     map 'mkdir -p $v' $DIRS;
3193     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3194 fi
3195
3196 enabled stripping || strip="echo skipping strip"
3197
3198 config_files="$TMPH config.mak"
3199
3200 cat > config.mak <<EOF
3201 # Automatically generated by configure - do not modify!
3202 ifndef FFMPEG_CONFIG_MAK
3203 FFMPEG_CONFIG_MAK=1
3204 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3205 prefix=$prefix
3206 LIBDIR=\$(DESTDIR)$libdir
3207 SHLIBDIR=\$(DESTDIR)$shlibdir
3208 INCDIR=\$(DESTDIR)$incdir
3209 BINDIR=\$(DESTDIR)$bindir
3210 DATADIR=\$(DESTDIR)$datadir
3211 MANDIR=\$(DESTDIR)$mandir
3212 SRC_PATH="$source_path"
3213 SRC_PATH_BARE=$source_path
3214 BUILD_ROOT="$PWD"
3215 CC_IDENT=$cc_ident
3216 ARCH=$arch
3217 CC=$cc
3218 AS=$as
3219 LD=$ld
3220 DEPCC=$dep_cc
3221 YASM=$yasmexe
3222 YASMDEP=$yasmexe
3223 AR=$ar
3224 RANLIB=$ranlib
3225 CP=cp -p
3226 LN_S=$ln_s
3227 STRIP=$strip
3228 CPPFLAGS=$CPPFLAGS
3229 CFLAGS=$CFLAGS
3230 ASFLAGS=$ASFLAGS
3231 CC_O=$CC_O
3232 LDFLAGS=$LDFLAGS
3233 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3234 SHFLAGS=$SHFLAGS
3235 YASMFLAGS=$YASMFLAGS
3236 BUILDSUF=$build_suffix
3237 FULLNAME=$FULLNAME
3238 LIBPREF=$LIBPREF
3239 LIBSUF=$LIBSUF
3240 LIBNAME=$LIBNAME
3241 SLIBPREF=$SLIBPREF
3242 SLIBSUF=$SLIBSUF
3243 EXESUF=$EXESUF
3244 EXTRA_VERSION=$extra_version
3245 DEPFLAGS=$DEPFLAGS
3246 CCDEP=$CCDEP
3247 ASDEP=$ASDEP
3248 CC_DEPFLAGS=$CC_DEPFLAGS
3249 AS_DEPFLAGS=$AS_DEPFLAGS
3250 HOSTCC=$host_cc
3251 HOSTCFLAGS=$host_cflags
3252 HOSTEXESUF=$HOSTEXESUF
3253 HOSTLDFLAGS=$host_ldflags
3254 HOSTLIBS=$host_libs
3255 TARGET_EXEC=$target_exec
3256 TARGET_PATH=$target_path
3257 SDL_LIBS=$sdl_libs
3258 SDL_CFLAGS=$sdl_cflags
3259 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3260 EXTRALIBS=$extralibs
3261 INSTALL=install
3262 LIBTARGET=${LIBTARGET}
3263 SLIBNAME=${SLIBNAME}
3264 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3265 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3266 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3267 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3268 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3269 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3270 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3271 EOF
3272
3273 get_version(){
3274     name=$1
3275     file=$source_path/$2
3276     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3277     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3278     lcname=$(tolower $name)
3279     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3280     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3281 }
3282
3283 get_version LIBSWSCALE  libswscale/swscale.h
3284 get_version LIBPOSTPROC libpostproc/postprocess.h
3285 get_version LIBAVCODEC  libavcodec/avcodec.h
3286 get_version LIBAVDEVICE libavdevice/avdevice.h
3287 get_version LIBAVFORMAT libavformat/version.h
3288 get_version LIBAVUTIL   libavutil/avutil.h
3289 get_version LIBAVFILTER libavfilter/avfilter.h
3290
3291 cat > $TMPH <<EOF
3292 /* Automatically generated by configure - do not modify! */
3293 #ifndef FFMPEG_CONFIG_H
3294 #define FFMPEG_CONFIG_H
3295 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3296 #define FFMPEG_LICENSE "$(c_escape $license)"
3297 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3298 #define CC_TYPE "$cc_type"
3299 #define CC_VERSION $cc_version
3300 #define restrict $_restrict
3301 #define EXTERN_PREFIX "${extern_prefix}"
3302 #define EXTERN_ASM ${extern_prefix}
3303 #define SLIBSUF "$SLIBSUF"
3304 EOF
3305
3306 test -n "$malloc_prefix" &&
3307     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3308
3309 if enabled small || disabled optimizations; then
3310     echo "#undef  av_always_inline"  >> $TMPH
3311     if enabled small; then
3312         echo "#define av_always_inline inline"  >> $TMPH
3313     else
3314         echo "#define av_always_inline av_unused"  >> $TMPH
3315     fi
3316 fi
3317
3318 if enabled yasm; then
3319     append config_files $TMPASM
3320     printf '' >$TMPASM
3321 fi
3322
3323 print_config ARCH_   "$config_files" $ARCH_LIST
3324 print_config HAVE_   "$config_files" $HAVE_LIST
3325 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3326                                      $CONFIG_EXTRA      \
3327                                      $DECODER_LIST      \
3328                                      $ENCODER_LIST      \
3329                                      $HWACCEL_LIST      \
3330                                      $PARSER_LIST       \
3331                                      $BSF_LIST          \
3332                                      $DEMUXER_LIST      \
3333                                      $MUXER_LIST        \
3334                                      $FILTER_LIST       \
3335                                      $PROTOCOL_LIST     \
3336                                      $INDEV_LIST        \
3337                                      $OUTDEV_LIST       \
3338
3339 cat >>config.mak <<EOF
3340 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3341 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3342 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3343 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3344 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3345 EOF
3346
3347 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3348 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3349
3350 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3351 cp_if_changed $TMPH config.h
3352 touch .config
3353
3354 enabled yasm && cp_if_changed $TMPASM config.asm
3355
3356 cat > $TMPH <<EOF
3357 /* Generated by ffconf */
3358 #ifndef AVUTIL_AVCONFIG_H
3359 #define AVUTIL_AVCONFIG_H
3360 EOF
3361
3362 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3363
3364 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3365
3366 cp_if_changed $TMPH libavutil/avconfig.h
3367
3368 test -n "$WARNINGS" && printf "\n$WARNINGS"
3369
3370 # build pkg-config files
3371
3372 pkgconfig_generate(){
3373 name=$1
3374 shortname=${name#lib}${build_suffix}
3375 comment=$2
3376 version=$3
3377 libs=$4
3378 requires=$5
3379 enabled ${name#lib} || return 0
3380 cat <<EOF > $name/$name.pc
3381 prefix=$prefix
3382 exec_prefix=\${prefix}
3383 libdir=$libdir
3384 includedir=$incdir
3385
3386 Name: $name
3387 Description: $comment
3388 Version: $version
3389 Requires: $(enabled shared || echo $requires)
3390 Requires.private: $(enabled shared && echo $requires)
3391 Conflicts:
3392 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3393 Libs.private: $(enabled shared && echo $libs)
3394 Cflags: -I\${includedir}
3395 EOF
3396 cat <<EOF > $name/$name-uninstalled.pc
3397 prefix=
3398 exec_prefix=
3399 libdir=\${pcfiledir}
3400 includedir=${source_path}
3401
3402 Name: $name
3403 Description: $comment
3404 Version: $version
3405 Requires: $requires
3406 Conflicts:
3407 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3408 Cflags: -I\${includedir}
3409 EOF
3410 }
3411
3412 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3413 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3414 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3415 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3416 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3417 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3418 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"