38cd4d154cc51d11cea34751e7f044dcf6d7baaf
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --enable-postproc        enable GPLed postprocessing support [no]
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --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 [$arch]
216   --cpu=CPU                select the minimum required CPU (affects
217                            instruction selection, may crash on older CPUs)
218   --disable-asm            disable all assembler optimizations
219   --disable-altivec        disable AltiVec optimizations
220   --disable-amd3dnow       disable 3DNow! optimizations
221   --disable-amd3dnowext    disable 3DNow! extended optimizations
222   --disable-mmx            disable MMX optimizations
223   --disable-mmx2           disable MMX2 optimizations
224   --disable-sse            disable SSE optimizations
225   --disable-ssse3          disable SSSE3 optimizations
226   --disable-avx            disable AVX optimizations
227   --disable-armv5te        disable armv5te optimizations
228   --disable-armv6          disable armv6 optimizations
229   --disable-armv6t2        disable armv6t2 optimizations
230   --disable-armvfp         disable ARM VFP optimizations
231   --disable-iwmmxt         disable iwmmxt optimizations
232   --disable-mmi            disable MMI optimizations
233   --disable-neon           disable neon optimizations
234   --disable-vis            disable VIS optimizations
235   --disable-yasm           disable use of yasm assembler
236   --enable-pic             build position-independent code
237   --malloc-prefix=PFX      prefix malloc and related names with PFX
238   --enable-sram            allow use of on-chip SRAM
239   --disable-symver         disable symbol versioning
240
241 Developer options (useful when working on Libav itself):
242   --disable-debug          disable debugging symbols
243   --enable-debug=LEVEL     set the debug level [$debuglevel]
244   --disable-optimizations  disable compiler optimizations
245   --enable-extra-warnings  enable more compiler warnings
246   --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 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
284 EOF
285     if disabled logging; then
286         cat <<EOF
287 Rerun configure with logging enabled (do not use --disable-logging), and
288 include the log this produces with your report.
289 EOF
290     else
291 cat <<EOF
292 Include the log file "$logfile" produced by configure as this will help
293 solving the problem.
294 EOF
295     fi
296     exit 1
297 }
298
299 # Avoid locale weirdness, besides we really just want to translate ASCII.
300 toupper(){
301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
302 }
303
304 tolower(){
305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
306 }
307
308 c_escape(){
309     echo "$*" | sed 's/["\\]/\\\0/g'
310 }
311
312 sh_quote(){
313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
315     echo "$v"
316 }
317
318 cleanws(){
319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
320 }
321
322 filter(){
323     pat=$1
324     shift
325     for v; do
326         eval "case $v in $pat) echo $v ;; esac"
327     done
328 }
329
330 filter_out(){
331     pat=$1
332     shift
333     for v; do
334         eval "case $v in $pat) ;; *) echo $v ;; esac"
335     done
336 }
337
338 map(){
339     m=$1
340     shift
341     for v; do eval $m; done
342 }
343
344 set_all(){
345     value=$1
346     shift
347     for var in $*; do
348         eval $var=$value
349     done
350 }
351
352 set_weak(){
353     value=$1
354     shift
355     for var; do
356         eval : \${$var:=$value}
357     done
358 }
359
360 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     ac3dsp
876     avcodec
877     avdevice
878     avfilter
879     avformat
880     avisynth
881     bzlib
882     crystalhd
883     dct
884     doc
885     dwt
886     dxva2
887     fastdiv
888     ffmpeg
889     ffplay
890     ffprobe
891     ffserver
892     fft
893     frei0r
894     golomb
895     gpl
896     gray
897     h264dsp
898     h264pred
899     hardcoded_tables
900     huffman
901     libdc1394
902     libdirac
903     libfaac
904     libfreetype
905     libgsm
906     libmp3lame
907     libnut
908     libopencore_amrnb
909     libopencore_amrwb
910     libopencv
911     libopenjpeg
912     librtmp
913     libschroedinger
914     libspeex
915     libtheora
916     libvorbis
917     libvpx
918     libx264
919     libxavs
920     libxvid
921     lpc
922     lsp
923     mdct
924     memalign_hack
925     mlib
926     mpegaudio_hp
927     network
928     nonfree
929     pic
930     postproc
931     rdft
932     rtpdec
933     runtime_cpudetect
934     shared
935     small
936     sram
937     static
938     swscale
939     swscale_alpha
940     vaapi
941     vdpau
942     version3
943     x11grab
944     zlib
945 "
946
947 THREADS_LIST='
948     pthreads
949     w32threads
950 '
951
952 ARCH_LIST='
953     alpha
954     arm
955     avr32
956     avr32_ap
957     avr32_uc
958     bfin
959     ia64
960     m68k
961     mips
962     mips64
963     parisc
964     ppc
965     ppc64
966     s390
967     sh4
968     sparc
969     sparc64
970     tomi
971     x86
972     x86_32
973     x86_64
974 '
975
976 ARCH_EXT_LIST='
977     altivec
978     amd3dnow
979     amd3dnowext
980     armv5te
981     armv6
982     armv6t2
983     armvfp
984     avx
985     iwmmxt
986     mmi
987     mmx
988     mmx2
989     neon
990     ppc4xx
991     sse
992     ssse3
993     vis
994 '
995
996 HAVE_LIST_PUB='
997     bigendian
998     fast_unaligned
999 '
1000
1001 HAVE_LIST="
1002     $ARCH_EXT_LIST
1003     $HAVE_LIST_PUB
1004     $THREADS_LIST
1005     aligned_stack
1006     alsa_asoundlib_h
1007     altivec_h
1008     arpa_inet_h
1009     attribute_may_alias
1010     attribute_packed
1011     bswap
1012     closesocket
1013     cmov
1014     conio_h
1015     dcbzl
1016     dev_bktr_ioctl_bt848_h
1017     dev_bktr_ioctl_meteor_h
1018     dev_ic_bt8xx_h
1019     dev_video_meteor_ioctl_meteor_h
1020     dev_video_bktr_ioctl_bt848_h
1021     dlfcn_h
1022     dlopen
1023     dos_paths
1024     ebp_available
1025     ebx_available
1026     exp2
1027     exp2f
1028     fast_64bit
1029     fast_clz
1030     fast_cmov
1031     fcntl
1032     fork
1033     getaddrinfo
1034     gethrtime
1035     GetProcessMemoryInfo
1036     GetProcessTimes
1037     getrusage
1038     gnu_as
1039     struct_rusage_ru_maxrss
1040     ibm_asm
1041     inet_aton
1042     inline_asm
1043     isatty
1044     ldbrx
1045     libdc1394_1
1046     libdc1394_2
1047     llrint
1048     llrintf
1049     local_aligned_16
1050     local_aligned_8
1051     localtime_r
1052     log2
1053     log2f
1054     loongson
1055     lrint
1056     lrintf
1057     lzo1x_999_compress
1058     machine_ioctl_bt848_h
1059     machine_ioctl_meteor_h
1060     malloc_h
1061     MapViewOfFile
1062     memalign
1063     mkstemp
1064     mmap
1065     pld
1066     posix_memalign
1067     round
1068     roundf
1069     sdl
1070     sdl_video_size
1071     setmode
1072     socklen_t
1073     soundcard_h
1074     poll_h
1075     setrlimit
1076     strerror_r
1077     strtok_r
1078     struct_addrinfo
1079     struct_ipv6_mreq
1080     struct_sockaddr_in6
1081     struct_sockaddr_sa_len
1082     struct_sockaddr_storage
1083     symver
1084     symver_gnu_asm
1085     symver_asm_label
1086     sys_mman_h
1087     sys_resource_h
1088     sys_select_h
1089     sys_soundcard_h
1090     sys_videoio_h
1091     ten_operands
1092     termios_h
1093     threads
1094     truncf
1095     vfp_args
1096     VirtualAlloc
1097     winsock2_h
1098     xform_asm
1099     xmm_clobbers
1100     yasm
1101 "
1102
1103 # options emitted with CONFIG_ prefix but not available on command line
1104 CONFIG_EXTRA="
1105     avutil
1106     gplv3
1107     lgplv3
1108 "
1109
1110 CMDLINE_SELECT="
1111     $ARCH_EXT_LIST
1112     $CONFIG_LIST
1113     $THREADS_LIST
1114     asm
1115     cross_compile
1116     debug
1117     extra_warnings
1118     logging
1119     optimizations
1120     stripping
1121     symver
1122     yasm
1123 "
1124
1125 PATHS_LIST='
1126     bindir
1127     datadir
1128     incdir
1129     libdir
1130     mandir
1131     prefix
1132     shlibdir
1133 '
1134
1135 CMDLINE_SET="
1136     $PATHS_LIST
1137     ar
1138     arch
1139     as
1140     build_suffix
1141     cc
1142     cpu
1143     cross_prefix
1144     dep_cc
1145     extra_version
1146     host_cc
1147     host_cflags
1148     host_ldflags
1149     host_libs
1150     host_os
1151     ld
1152     logfile
1153     malloc_prefix
1154     nm
1155     samples
1156     source_path
1157     strip
1158     sysinclude
1159     sysroot
1160     target_exec
1161     target_os
1162     target_path
1163 "
1164
1165 CMDLINE_APPEND="
1166     extra_cflags
1167 "
1168
1169 # code dependency declarations
1170
1171 # architecture extensions
1172
1173 armv5te_deps="arm"
1174 armv6_deps="arm"
1175 armv6t2_deps="arm"
1176 armvfp_deps="arm"
1177 iwmmxt_deps="arm"
1178 neon_deps="arm"
1179
1180 mmi_deps="mips"
1181
1182 altivec_deps="ppc"
1183 ppc4xx_deps="ppc"
1184
1185 vis_deps="sparc"
1186
1187 x86_64_suggest="cmov fast_cmov"
1188 amd3dnow_deps="mmx"
1189 amd3dnowext_deps="amd3dnow"
1190 mmx_deps="x86"
1191 mmx2_deps="mmx"
1192 sse_deps="mmx"
1193 ssse3_deps="sse"
1194 avx_deps="ssse3"
1195
1196 aligned_stack_if_any="ppc x86"
1197 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1198 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1199 fast_unaligned_if_any="armv6 ppc x86"
1200
1201 need_memalign="altivec neon sse"
1202 inline_asm_deps="!tms470"
1203
1204 symver_if_any="symver_asm_label symver_gnu_asm"
1205
1206 # subsystems
1207 dct_select="rdft"
1208 mdct_select="fft"
1209 rdft_select="fft"
1210
1211 # decoders / encoders / hardware accelerators
1212 aac_decoder_select="mdct rdft"
1213 aac_encoder_select="mdct"
1214 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1215 ac3_decoder_select="mdct ac3_parser"
1216 ac3_encoder_select="mdct ac3dsp"
1217 ac3_fixed_encoder_select="ac3dsp"
1218 alac_encoder_select="lpc"
1219 amrnb_decoder_select="lsp"
1220 amrwb_decoder_select="lsp"
1221 atrac1_decoder_select="mdct"
1222 atrac3_decoder_select="mdct"
1223 binkaudio_dct_decoder_select="mdct rdft dct"
1224 binkaudio_rdft_decoder_select="mdct rdft"
1225 cavs_decoder_select="golomb"
1226 cook_decoder_select="mdct"
1227 cscd_decoder_suggest="zlib"
1228 dca_decoder_select="mdct"
1229 dnxhd_encoder_select="aandct"
1230 dxa_decoder_select="zlib"
1231 eac3_decoder_select="ac3_decoder"
1232 eamad_decoder_select="aandct"
1233 eatgq_decoder_select="aandct"
1234 eatqi_decoder_select="aandct"
1235 ffv1_decoder_select="golomb"
1236 flac_decoder_select="golomb"
1237 flac_encoder_select="golomb lpc"
1238 flashsv_decoder_select="zlib"
1239 flashsv_encoder_select="zlib"
1240 flv_decoder_select="h263_decoder"
1241 flv_encoder_select="h263_encoder"
1242 fraps_decoder_select="huffman"
1243 h261_encoder_select="aandct"
1244 h263_decoder_select="h263_parser"
1245 h263_encoder_select="aandct"
1246 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1247 h263i_decoder_select="h263_decoder"
1248 h263p_encoder_select="h263_encoder"
1249 h264_decoder_select="golomb h264dsp h264pred"
1250 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1251 h264_dxva2_hwaccel_deps="dxva2api_h"
1252 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1253 h264_vaapi_hwaccel_select="vaapi"
1254 h264_vdpau_decoder_select="vdpau h264_decoder"
1255 imc_decoder_select="fft mdct"
1256 jpegls_decoder_select="golomb"
1257 jpegls_encoder_select="golomb"
1258 ljpeg_encoder_select="aandct"
1259 loco_decoder_select="golomb"
1260 mjpeg_encoder_select="aandct"
1261 mlp_decoder_select="mlp_parser"
1262 mp1float_decoder_select="dct"
1263 mp2float_decoder_select="dct"
1264 mp3adufloat_decoder_select="dct"
1265 mp3float_decoder_select="dct"
1266 mp3on4float_decoder_select="dct"
1267 mpeg1video_encoder_select="aandct"
1268 mpeg2video_encoder_select="aandct"
1269 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1270 mpeg4_encoder_select="h263_encoder"
1271 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1272 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1273 mpeg2_crystalhd_decoder_select="crystalhd"
1274 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1275 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1276 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1277 mpeg4_crystalhd_decoder_select="crystalhd"
1278 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1279 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1280 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1281 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1282 msmpeg4_crystalhd_decoder_select="crystalhd"
1283 msmpeg4v1_decoder_select="h263_decoder"
1284 msmpeg4v1_encoder_select="h263_encoder"
1285 msmpeg4v2_decoder_select="h263_decoder"
1286 msmpeg4v2_encoder_select="h263_encoder"
1287 msmpeg4v3_decoder_select="h263_decoder"
1288 msmpeg4v3_encoder_select="h263_encoder"
1289 nellymoser_decoder_select="mdct"
1290 nellymoser_encoder_select="mdct"
1291 png_decoder_select="zlib"
1292 png_encoder_select="zlib"
1293 qcelp_decoder_select="lsp"
1294 qdm2_decoder_select="mdct rdft"
1295 ra_144_encoder_select="lpc"
1296 rv10_decoder_select="h263_decoder"
1297 rv10_encoder_select="h263_encoder"
1298 rv20_decoder_select="h263_decoder"
1299 rv20_encoder_select="h263_encoder"
1300 rv30_decoder_select="golomb h264pred"
1301 rv40_decoder_select="golomb h264pred"
1302 shorten_decoder_select="golomb"
1303 sipr_decoder_select="lsp"
1304 snow_decoder_select="dwt"
1305 snow_encoder_select="aandct dwt"
1306 sonic_decoder_select="golomb"
1307 sonic_encoder_select="golomb"
1308 sonic_ls_encoder_select="golomb"
1309 svq1_encoder_select="aandct"
1310 svq3_decoder_select="golomb h264dsp h264pred"
1311 svq3_decoder_suggest="zlib"
1312 theora_decoder_select="vp3_decoder"
1313 tiff_decoder_suggest="zlib"
1314 tiff_encoder_suggest="zlib"
1315 truehd_decoder_select="mlp_decoder"
1316 tscc_decoder_select="zlib"
1317 twinvq_decoder_select="mdct lsp"
1318 vc1_decoder_select="h263_decoder"
1319 vc1_crystalhd_decoder_select="crystalhd"
1320 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1321 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1322 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1323 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1324 vorbis_decoder_select="mdct"
1325 vorbis_encoder_select="mdct"
1326 vp6_decoder_select="huffman"
1327 vp6a_decoder_select="vp6_decoder"
1328 vp6f_decoder_select="vp6_decoder"
1329 vp8_decoder_select="h264pred"
1330 wmapro_decoder_select="mdct"
1331 wmav1_decoder_select="mdct"
1332 wmav1_encoder_select="mdct"
1333 wmav2_decoder_select="mdct"
1334 wmav2_encoder_select="mdct"
1335 wmavoice_decoder_select="lsp rdft dct mdct"
1336 wmv1_decoder_select="h263_decoder"
1337 wmv1_encoder_select="h263_encoder"
1338 wmv2_decoder_select="h263_decoder"
1339 wmv2_encoder_select="h263_encoder"
1340 wmv3_decoder_select="vc1_decoder"
1341 wmv3_crystalhd_decoder_select="crystalhd"
1342 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1343 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1344 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1345 zlib_decoder_select="zlib"
1346 zlib_encoder_select="zlib"
1347 zmbv_decoder_select="zlib"
1348 zmbv_encoder_select="zlib"
1349
1350 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1351 vaapi_deps="va_va_h"
1352 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1353
1354 # parsers
1355 h264_parser_select="golomb h264dsp h264pred"
1356
1357 # external libraries
1358 libdirac_decoder_deps="libdirac !libschroedinger"
1359 libdirac_encoder_deps="libdirac"
1360 libfaac_encoder_deps="libfaac"
1361 libgsm_decoder_deps="libgsm"
1362 libgsm_encoder_deps="libgsm"
1363 libgsm_ms_decoder_deps="libgsm"
1364 libgsm_ms_encoder_deps="libgsm"
1365 libmp3lame_encoder_deps="libmp3lame"
1366 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1367 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1368 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1369 libopenjpeg_decoder_deps="libopenjpeg"
1370 libschroedinger_decoder_deps="libschroedinger"
1371 libschroedinger_encoder_deps="libschroedinger"
1372 libspeex_decoder_deps="libspeex"
1373 libtheora_encoder_deps="libtheora"
1374 libvorbis_encoder_deps="libvorbis"
1375 libvpx_decoder_deps="libvpx"
1376 libvpx_encoder_deps="libvpx"
1377 libx264_encoder_deps="libx264"
1378 libxavs_encoder_deps="libxavs"
1379 libxvid_encoder_deps="libxvid"
1380
1381 # demuxers / muxers
1382 ac3_demuxer_select="ac3_parser"
1383 asf_stream_muxer_select="asf_muxer"
1384 avisynth_demuxer_deps="avisynth"
1385 dirac_demuxer_select="dirac_parser"
1386 eac3_demuxer_select="ac3_parser"
1387 flac_demuxer_select="flac_parser"
1388 ipod_muxer_select="mov_muxer"
1389 libnut_demuxer_deps="libnut"
1390 libnut_muxer_deps="libnut"
1391 matroska_audio_muxer_select="matroska_muxer"
1392 matroska_demuxer_suggest="zlib bzlib"
1393 mov_demuxer_suggest="zlib"
1394 mp3_demuxer_select="mpegaudio_parser"
1395 mp4_muxer_select="mov_muxer"
1396 mpegtsraw_demuxer_select="mpegts_demuxer"
1397 mxf_d10_muxer_select="mxf_muxer"
1398 ogg_demuxer_select="golomb"
1399 psp_muxer_select="mov_muxer"
1400 rtp_demuxer_select="sdp_demuxer"
1401 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1402 rtsp_demuxer_select="http_protocol rtpdec"
1403 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1404 sap_demuxer_select="sdp_demuxer"
1405 sap_muxer_select="rtp_muxer rtp_protocol"
1406 sdp_demuxer_select="rtpdec"
1407 spdif_muxer_select="aac_parser"
1408 tg2_muxer_select="mov_muxer"
1409 tgp_muxer_select="mov_muxer"
1410 w64_demuxer_deps="wav_demuxer"
1411
1412 # indevs / outdevs
1413 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1414 alsa_outdev_deps="alsa_asoundlib_h"
1415 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1416 dv1394_indev_deps="dv1394 dv_demuxer"
1417 fbdev_indev_deps="linux_fb_h"
1418 jack_indev_deps="jack_jack_h"
1419 libdc1394_indev_deps="libdc1394"
1420 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1421 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1422 v4l_indev_deps="linux_videodev_h"
1423 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1424 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1425 vfwcap_indev_extralibs="-lavicap32"
1426 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1427 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1428
1429 # protocols
1430 gopher_protocol_deps="network"
1431 http_protocol_deps="network"
1432 http_protocol_select="tcp_protocol"
1433 mmsh_protocol_select="http_protocol"
1434 mmst_protocol_deps="network"
1435 rtmp_protocol_select="tcp_protocol"
1436 rtp_protocol_select="udp_protocol"
1437 tcp_protocol_deps="network"
1438 udp_protocol_deps="network"
1439
1440 # filters
1441 blackframe_filter_deps="gpl"
1442 cropdetect_filter_deps="gpl"
1443 drawtext_filter_deps="libfreetype"
1444 frei0r_filter_deps="frei0r dlopen strtok_r"
1445 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1446 hqdn3d_filter_deps="gpl"
1447 mp_filter_deps="gpl"
1448 scale_filter_deps="swscale"
1449 ocv_filter_deps="libopencv"
1450 yadif_filter_deps="gpl"
1451
1452 # libraries
1453 avdevice_deps="avcodec avformat"
1454 avformat_deps="avcodec"
1455
1456 # programs
1457 ffmpeg_deps="avcodec avformat swscale"
1458 ffmpeg_select="buffer_filter"
1459 ffplay_deps="avcodec avformat swscale sdl"
1460 ffplay_select="rdft"
1461 ffprobe_deps="avcodec avformat"
1462 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1463 ffserver_extralibs='$ldl'
1464
1465 doc_deps="texi2html"
1466
1467 # tests
1468
1469 test_deps(){
1470     suf1=$1
1471     suf2=$2
1472     shift 2
1473     for v; do
1474         dep=${v%=*}
1475         tests=${v#*=}
1476         for name in ${tests}; do
1477             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1478         done
1479     done
1480 }
1481
1482 set_ne_test_deps(){
1483     eval ${1}_be_test_deps="bigendian"
1484     eval ${1}_le_test_deps="!bigendian"
1485 }
1486
1487 test_deps _encoder _decoder                                             \
1488     adpcm_g726=g726                                                     \
1489     adpcm_ima_qt                                                        \
1490     adpcm_ima_wav                                                       \
1491     adpcm_ms                                                            \
1492     adpcm_swf                                                           \
1493     adpcm_yamaha=adpcm_yam                                              \
1494     alac                                                                \
1495     asv1                                                                \
1496     asv2                                                                \
1497     bmp                                                                 \
1498     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1499     dvvideo="dv dv50"                                                   \
1500     ffv1                                                                \
1501     flac                                                                \
1502     flashsv                                                             \
1503     flv                                                                 \
1504     gif                                                                 \
1505     h261                                                                \
1506     h263="h263 h263p"                                                   \
1507     huffyuv                                                             \
1508     jpegls                                                              \
1509     mjpeg="jpg mjpeg ljpeg"                                             \
1510     mp2                                                                 \
1511     mpeg1video="mpeg mpeg1b"                                            \
1512     mpeg2video="mpeg2 mpeg2thread"                                      \
1513     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1514     msmpeg4v3=msmpeg4                                                   \
1515     msmpeg4v2                                                           \
1516     pbm=pbmpipe                                                         \
1517     pcx                                                                 \
1518     pgm="pgm pgmpipe"                                                   \
1519     png                                                                 \
1520     ppm="ppm ppmpipe"                                                   \
1521     rawvideo="rgb yuv"                                                  \
1522     roq                                                                 \
1523     rv10                                                                \
1524     rv20                                                                \
1525     sgi                                                                 \
1526     snow="snow snowll"                                                  \
1527     svq1                                                                \
1528     targa=tga                                                           \
1529     tiff                                                                \
1530     wmav1                                                               \
1531     wmav2                                                               \
1532     wmv1                                                                \
1533     wmv2                                                                \
1534
1535 test_deps _muxer _demuxer                                               \
1536     aiff                                                                \
1537     pcm_alaw=alaw                                                       \
1538     asf                                                                 \
1539     au                                                                  \
1540     avi                                                                 \
1541     dv=dv_fmt                                                           \
1542     ffm                                                                 \
1543     flv=flv_fmt                                                         \
1544     gxf                                                                 \
1545     matroska=mkv                                                        \
1546     mmf                                                                 \
1547     mov                                                                 \
1548     pcm_mulaw=mulaw                                                     \
1549     mxf                                                                 \
1550     nut                                                                 \
1551     ogg                                                                 \
1552     rawvideo=pixfmt                                                     \
1553     rm                                                                  \
1554     swf                                                                 \
1555     mpegts=ts                                                           \
1556     voc                                                                 \
1557     wav                                                                 \
1558     yuv4mpegpipe=yuv4mpeg                                               \
1559
1560 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1561 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1562
1563 set_ne_test_deps pixdesc
1564 set_ne_test_deps pixfmts_copy
1565 set_ne_test_deps pixfmts_crop
1566 set_ne_test_deps pixfmts_hflip
1567 set_ne_test_deps pixfmts_null
1568 set_ne_test_deps pixfmts_pad
1569 set_ne_test_deps pixfmts_scale
1570 set_ne_test_deps pixfmts_vflip
1571
1572 # default parameters
1573
1574 logfile="config.log"
1575
1576 # installation paths
1577 prefix_default="/usr/local"
1578 bindir_default='${prefix}/bin'
1579 datadir_default='${prefix}/share/ffmpeg'
1580 incdir_default='${prefix}/include'
1581 libdir_default='${prefix}/lib'
1582 mandir_default='${prefix}/share/man'
1583 shlibdir_default="$libdir_default"
1584
1585 # toolchain
1586 ar_default="ar"
1587 cc_default="gcc"
1588 cc_version=\"unknown\"
1589 host_cc_default="gcc"
1590 ln_s="ln -sf"
1591 nm_default="nm"
1592 objformat="elf"
1593 ranlib="ranlib"
1594 strip_default="strip"
1595 yasmexe="yasm"
1596 nogas=":"
1597
1598 nm_opts='-g'
1599
1600 # machine
1601 arch_default=$(uname -m)
1602 cpu="generic"
1603
1604 # OS
1605 target_os_default=$(tolower $(uname -s))
1606 host_os=$target_os_default
1607
1608 # configurable options
1609 enable avcodec
1610 enable avdevice
1611 enable avfilter
1612 enable avformat
1613 enable avutil
1614 enable asm
1615 enable debug
1616 enable doc
1617 enable fastdiv
1618 enable ffmpeg
1619 enable ffplay
1620 enable ffprobe
1621 enable ffserver
1622 enable mpegaudio_hp
1623 enable network
1624 enable optimizations
1625 enable protocols
1626 enable static
1627 enable stripping
1628 enable swscale
1629 enable swscale_alpha
1630
1631 # build settings
1632 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1633 FFSERVERLDFLAGS=-Wl,-E
1634 LIBPREF="lib"
1635 LIBSUF=".a"
1636 FULLNAME='$(NAME)$(BUILDSUF)'
1637 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1638 SLIBPREF="lib"
1639 SLIBSUF=".so"
1640 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1641 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1642 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1643 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1644
1645 CC_O='-o $@'
1646
1647 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1648 host_libs='-lm'
1649
1650 target_path='$(CURDIR)'
1651
1652 # since the object filename is not given with the -MM flag, the compiler
1653 # is only able to print the basename, and we must add the path ourselves
1654 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1655 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1656
1657 # find source path
1658 source_path="$(dirname "$0")"
1659 enable source_path_used
1660 if test -f configure; then
1661     source_path="$(pwd)"
1662     disable source_path_used
1663 else
1664     source_path="$(cd "$source_path"; pwd)"
1665     echo "$source_path" | grep -q '[[:blank:]]' &&
1666         die "Out of tree builds are impossible with whitespace in source path."
1667     test -e "$source_path/config.h" &&
1668         die "Out of tree builds are impossible with config.h in source dir."
1669 fi
1670
1671 for v in "$@"; do
1672     r=${v#*=}
1673     l=${v%"$r"}
1674     r=$(sh_quote "$r")
1675     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1676 done
1677
1678 find_things(){
1679     thing=$1
1680     pattern=$2
1681     file=$source_path/$3
1682     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1683 }
1684
1685 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1686 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1687 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1688 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1689 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1690 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1691 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1692 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1693 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1694 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1695 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1696
1697 find_tests(){
1698     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1699 }
1700
1701 ACODEC_TESTS=$(find_tests acodec)
1702 VCODEC_TESTS=$(find_tests vsynth1)
1703 LAVF_TESTS=$(find_tests lavf)
1704 LAVFI_TESTS=$(find_tests lavfi)
1705 SEEK_TESTS=$(find_tests seek seek_)
1706
1707 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1708
1709 for n in $COMPONENT_LIST; do
1710     v=$(toupper ${n%s})_LIST
1711     eval enable \$$v
1712     eval ${n}_if_any="\$$v"
1713 done
1714
1715 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1716
1717 die_unknown(){
1718     echo "Unknown option \"$1\"."
1719     echo "See $0 --help for available options."
1720     exit 1
1721 }
1722
1723 show_list() {
1724     suffix=_$1
1725     shift
1726     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1727     exit 0
1728 }
1729
1730 for opt do
1731     optval="${opt#*=}"
1732     case "$opt" in
1733     --extra-ldflags=*) add_ldflags $optval
1734     ;;
1735     --extra-libs=*) add_extralibs $optval
1736     ;;
1737     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1738     ;;
1739     --enable-debug=*) debuglevel="$optval"
1740     ;;
1741     --disable-everything)
1742     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1743     ;;
1744     --enable-*=*|--disable-*=*)
1745     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1746     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1747     eval list=\$$(toupper $thing)_LIST
1748     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1749     $action $(filter "$name" $list)
1750     ;;
1751     --enable-?*|--disable-?*)
1752     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1753     if is_in $option $COMPONENT_LIST; then
1754         test $action = disable && action=unset
1755         eval $action \$$(toupper ${option%s})_LIST
1756     elif is_in $option $CMDLINE_SELECT; then
1757         $action $option
1758     else
1759         die_unknown $opt
1760     fi
1761     ;;
1762     --list-*)
1763         NAME="${opt#--list-}"
1764         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1765         NAME=${NAME%s}
1766         eval show_list $NAME \$$(toupper $NAME)_LIST
1767     ;;
1768     --help|-h) show_help
1769     ;;
1770     *)
1771     optname="${opt%%=*}"
1772     optname="${optname#--}"
1773     optname=$(echo "$optname" | sed 's/-/_/g')
1774     if is_in $optname $CMDLINE_SET; then
1775         eval $optname='$optval'
1776     elif is_in $optname $CMDLINE_APPEND; then
1777         append $optname "$optval"
1778     else
1779          die_unknown $opt
1780     fi
1781     ;;
1782     esac
1783 done
1784
1785 disabled logging && logfile=/dev/null
1786
1787 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1788 set >> $logfile
1789
1790 test -n "$cross_prefix" && enable cross_compile
1791
1792 if enabled cross_compile; then
1793     test -n "$arch" && test -n "$target_os" ||
1794         die "Must specify target arch and OS when cross-compiling"
1795 fi
1796
1797 set_default arch target_os
1798
1799 ar_default="${cross_prefix}${ar_default}"
1800 cc_default="${cross_prefix}${cc_default}"
1801 nm_default="${cross_prefix}${nm_default}"
1802 ranlib="${cross_prefix}${ranlib}"
1803 strip_default="${cross_prefix}${strip_default}"
1804
1805 sysinclude_default="${sysroot}/usr/include"
1806
1807 set_default cc nm strip sysinclude
1808 enabled cross_compile || host_cc_default=$cc
1809 set_default host_cc
1810
1811 exesuf() {
1812     case $1 in
1813         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1814     esac
1815 }
1816
1817 EXESUF=$(exesuf $target_os)
1818 HOSTEXESUF=$(exesuf $host_os)
1819
1820 # set temporary file name
1821 : ${TMPDIR:=$TEMPDIR}
1822 : ${TMPDIR:=$TMP}
1823 : ${TMPDIR:=/tmp}
1824
1825 if ! check_cmd mktemp -u XXXXXX; then
1826     # simple replacement for missing mktemp
1827     # NOT SAFE FOR GENERAL USE
1828     mktemp(){
1829         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1830     }
1831 fi
1832
1833 tmpfile(){
1834     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1835         (set -C; exec > $tmp) 2>/dev/null ||
1836         die "Unable to create temporary file in $TMPDIR."
1837     append TMPFILES $tmp
1838     eval $1=$tmp
1839 }
1840
1841 trap 'rm -f -- $TMPFILES' EXIT
1842
1843 tmpfile TMPC  .c
1844 tmpfile TMPE  $EXESUF
1845 tmpfile TMPH  .h
1846 tmpfile TMPO  .o
1847 tmpfile TMPS  .S
1848 tmpfile TMPV  .ver
1849 tmpfile TMPSH .sh
1850 tmpfile TMPASM .asm
1851
1852 unset -f mktemp
1853
1854 chmod +x $TMPE
1855
1856 # make sure we can execute files in $TMPDIR
1857 cat > $TMPSH 2>> $logfile <<EOF
1858 #! /bin/sh
1859 EOF
1860 chmod +x $TMPSH >> $logfile 2>&1
1861 if ! $TMPSH >> $logfile 2>&1; then
1862     cat <<EOF
1863 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1864 variable to another directory and make sure that it is not mounted noexec.
1865 EOF
1866     die "Sanity test failed."
1867 fi
1868
1869 filter_cflags=echo
1870 filter_cppflags=echo
1871 filter_asflags=echo
1872
1873 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1874     cc_type=llvm_gcc
1875     cc_version=__VERSION__
1876     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1877     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1878     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1879     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1880     speed_cflags='-O3'
1881     size_cflags='-Os'
1882 elif $cc -v 2>&1 | grep -qi ^gcc; then
1883     cc_type=gcc
1884     cc_version=__VERSION__
1885     gcc_version=$($cc --version | head -n1)
1886     gcc_basever=$($cc -dumpversion)
1887     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1888     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1889     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1890     if ! $cc -dumpversion | grep -q '^2\.'; then
1891         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1892         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1893     fi
1894     speed_cflags='-O3'
1895     size_cflags='-Os'
1896 elif $cc --version 2>/dev/null | grep -q Intel; then
1897     cc_type=icc
1898     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1899     cc_ident=$($cc --version | head -n1)
1900     icc_version=$($cc -dumpversion)
1901     CC_DEPFLAGS='-MMD'
1902     AS_DEPFLAGS='-MMD'
1903     speed_cflags='-O3'
1904     size_cflags='-Os'
1905     noopt_cflags='-O1'
1906 elif $cc -v 2>&1 | grep -q xlc; then
1907     cc_type=xlc
1908     cc_version="AV_STRINGIFY(__IBMC__)"
1909     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1910     speed_cflags='-O5'
1911     size_cflags='-O5 -qcompact'
1912 elif $cc -V 2>/dev/null | grep -q Compaq; then
1913     cc_type=ccc
1914     cc_version="AV_STRINGIFY(__DECC_VER)"
1915     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1916     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1917     debuglevel=3
1918     add_ldflags -Wl,-z,now # calls to libots crash without this
1919     speed_cflags='-fast'
1920     size_cflags='-O1'
1921 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1922     test -d "$sysroot" || die "No valid sysroot specified."
1923     cc_type=armcc
1924     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1925     cc_ident=$($cc --vsn | head -n1)
1926     armcc_conf="$PWD/armcc.conf"
1927     $cc --arm_linux_configure                 \
1928         --arm_linux_config_file="$armcc_conf" \
1929         --configure_sysroot="$sysroot"        \
1930         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1931         die "Error creating armcc configuration file."
1932     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1933     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1934     as_default="${cross_prefix}gcc"
1935     CC_DEPFLAGS='-MMD'
1936     AS_DEPFLAGS='-MMD'
1937     speed_cflags='-O3'
1938     size_cflags='-Os'
1939     filter_asflags="filter_out -W${armcc_opt}*"
1940 elif $cc -version 2>/dev/null | grep -q TMS470; then
1941     cc_type=tms470
1942     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1943     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1944     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1945     CC_O='-fr=$(@D)'
1946     as_default="${cross_prefix}gcc"
1947     ld_default="${cross_prefix}gcc"
1948     TMPO=$(basename $TMPC .c).o
1949     append TMPFILES $TMPO
1950     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1951     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1952     AS_DEPFLAGS='-MMD'
1953     speed_cflags='-O3 -mf=5'
1954     size_cflags='-O3 -mf=2'
1955     filter_cflags=tms470_flags
1956     tms470_flags(){
1957         for flag; do
1958             case $flag in
1959                 -march=*|-mcpu=*)
1960                     case "${flag#*=}" in
1961                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1962                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1963                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1964                         armv6*|arm11*)          echo -mv=6   ;;
1965                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1966                                                 echo -mv=5e  ;;
1967                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1968                     esac
1969                     ;;
1970                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1971                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1972                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1973                 -msoft-float)   echo --float_support=vfplib       ;;
1974                 -O[0-3]|-mf=*)  echo $flag                        ;;
1975                 -g)             echo -g -mn                       ;;
1976                 -pds=*)         echo $flag                        ;;
1977             esac
1978         done
1979     }
1980 elif $cc -v 2>&1 | grep -q clang; then
1981     cc_type=clang
1982     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1983         cc_version=__clang_version__ || cc_version=__VERSION__
1984     cc_ident=$($cc --version | head -n1)
1985     CC_DEPFLAGS='-MMD'
1986     AS_DEPFLAGS='-MMD'
1987     speed_cflags='-O3'
1988     size_cflags='-Os'
1989 elif $cc -V 2>&1 | grep -q Sun; then
1990     cc_type=suncc
1991     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1992     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1993     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1994     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1995     speed_cflags='-O5'
1996     size_cflags='-O5 -xspace'
1997     filter_cflags=suncc_flags
1998     suncc_flags(){
1999         for flag; do
2000             case $flag in
2001                 -march=*|-mcpu=*)
2002                     case "${flag#*=}" in
2003                         native)                   echo -xtarget=native       ;;
2004                         v9|niagara)               echo -xarch=sparc          ;;
2005                         ultrasparc)               echo -xarch=sparcvis       ;;
2006                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2007                         i586|pentium)             echo -xchip=pentium        ;;
2008                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2009                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2010                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2011                         pentium4*)          echo -xtarget=pentium4           ;;
2012                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2013                         *-sse3)             echo -xarch=sse3                 ;;
2014                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2015                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2016                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2017                         k8|opteron|athlon64|athlon-fx)
2018                                                   echo -xarch=sse2a          ;;
2019                         athlon*)                  echo -xarch=pentium_proa   ;;
2020                     esac
2021                     ;;
2022                 -std=c99)             echo -xc99              ;;
2023                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2024                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2025                 -W*,*)                echo $flag              ;;
2026                 -f*-*|-W*)                                    ;;
2027                 *)                    echo $flag              ;;
2028             esac
2029         done
2030     }
2031 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2032     cc_type=pathscale
2033     cc_version=__PATHSCALE__
2034     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2035     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2036     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2037     speed_cflags='-O2'
2038     size_cflags='-Os'
2039 elif $cc -v 2>&1 | grep -q Open64; then
2040     cc_type=open64
2041     cc_version=__OPEN64__
2042     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2043     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2044     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2045     speed_cflags='-O2'
2046     size_cflags='-Os'
2047 fi
2048
2049 test -n "$cc_type" && enable $cc_type ||
2050     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2051
2052 : ${as_default:=$cc}
2053 : ${dep_cc_default:=$cc}
2054 : ${ld_default:=$cc}
2055 set_default ar as dep_cc ld
2056
2057 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2058 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2059
2060 add_cflags $extra_cflags
2061 add_asflags $extra_cflags
2062
2063 if test -n "$sysroot"; then
2064     case "$cc_type" in
2065         gcc|llvm_gcc|clang)
2066             add_cppflags --sysroot="$sysroot"
2067             add_ldflags --sysroot="$sysroot"
2068         ;;
2069         tms470)
2070             add_cppflags -I"$sysinclude"
2071             add_ldflags  --sysroot="$sysroot"
2072         ;;
2073     esac
2074 fi
2075
2076 if test "$cpu" = host; then
2077     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2078
2079     case "$cc_type" in
2080         gcc|llvm_gcc)
2081             check_native(){
2082                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2083                 sed -n "/$1=/{
2084                             s/.*$1=\\([^ ]*\\).*/\\1/
2085                             p
2086                             q
2087                         }" $TMPE
2088             }
2089             cpu=$(check_native -march || check_native -mcpu)
2090         ;;
2091     esac
2092
2093     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2094 fi
2095
2096 # Deal with common $arch aliases
2097 case "$arch" in
2098     arm*)
2099         arch="arm"
2100     ;;
2101     mips|mipsel|IP*)
2102         arch="mips"
2103     ;;
2104     mips64*)
2105         arch="mips"
2106         subarch="mips64"
2107     ;;
2108     parisc|hppa)
2109         arch="parisc"
2110     ;;
2111     parisc64|hppa64)
2112         arch="parisc"
2113         subarch="parisc64"
2114     ;;
2115     "Power Macintosh"|ppc|powerpc)
2116         arch="ppc"
2117     ;;
2118     ppc64|powerpc64)
2119         arch="ppc"
2120         subarch="ppc64"
2121     ;;
2122     s390|s390x)
2123         arch="s390"
2124     ;;
2125     sh4|sh)
2126         arch="sh4"
2127     ;;
2128     sun4u|sparc64)
2129         arch="sparc"
2130         subarch="sparc64"
2131     ;;
2132     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2133         arch="x86"
2134     ;;
2135 esac
2136
2137 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2138 enable $arch
2139
2140 # Add processor-specific flags
2141 if test "$cpu" = generic; then
2142     : do nothing
2143 elif enabled ppc; then
2144
2145     case $(tolower $cpu) in
2146         601|ppc601|powerpc601)
2147             cpuflags="-mcpu=601"
2148             disable altivec
2149         ;;
2150         603*|ppc603*|powerpc603*)
2151             cpuflags="-mcpu=603"
2152             disable altivec
2153         ;;
2154         604*|ppc604*|powerpc604*)
2155             cpuflags="-mcpu=604"
2156             disable altivec
2157         ;;
2158         g3|75*|ppc75*|powerpc75*)
2159             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2160             disable altivec
2161         ;;
2162         g4|745*|ppc745*|powerpc745*)
2163             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2164         ;;
2165         74*|ppc74*|powerpc74*)
2166             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2167         ;;
2168         g5|970|ppc970|powerpc970|power4*)
2169             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2170         ;;
2171         cell)
2172             cpuflags="-mcpu=cell"
2173             enable ldbrx
2174         ;;
2175         e500v2)
2176             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2177             disable altivec
2178         ;;
2179         e500)
2180             cpuflags="-mcpu=8540 -mhard-float"
2181             disable altivec
2182         ;;
2183     esac
2184
2185 elif enabled x86; then
2186
2187     case $cpu in
2188         i[345]86|pentium)
2189             cpuflags="-march=$cpu"
2190             disable mmx
2191         ;;
2192         # targets that do NOT support conditional mov (cmov)
2193         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2194             cpuflags="-march=$cpu"
2195             disable cmov
2196         ;;
2197         # targets that do support conditional mov (cmov)
2198         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2199             cpuflags="-march=$cpu"
2200             enable cmov
2201             enable fast_cmov
2202         ;;
2203         # targets that do support conditional mov but on which it's slow
2204         pentium4|pentium4m|prescott|nocona)
2205             cpuflags="-march=$cpu"
2206             enable cmov
2207             disable fast_cmov
2208         ;;
2209     esac
2210
2211 elif enabled sparc; then
2212
2213     case $cpu in
2214         niagara)
2215             cpuflags="-mcpu=$cpu"
2216             disable vis
2217         ;;
2218         sparc64)
2219             cpuflags="-mcpu=v9"
2220         ;;
2221     esac
2222
2223 elif enabled arm; then
2224
2225     case $cpu in
2226         armv*)
2227             cpuflags="-march=$cpu"
2228             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2229         ;;
2230         *)
2231             cpuflags="-mcpu=$cpu"
2232             case $cpu in
2233                 cortex-a*)                               subarch=armv7a  ;;
2234                 cortex-r*)                               subarch=armv7r  ;;
2235                 cortex-m*)                               subarch=armv7m  ;;
2236                 arm11*)                                  subarch=armv6   ;;
2237                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2238                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2239             esac
2240         ;;
2241     esac
2242
2243 elif enabled alpha; then
2244
2245     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2246
2247 elif enabled bfin; then
2248
2249     cpuflags="-mcpu=$cpu"
2250
2251 elif enabled mips; then
2252
2253     cpuflags="-march=$cpu"
2254
2255 elif enabled avr32; then
2256
2257     case $cpu in
2258         ap7[02]0[0-2])
2259             subarch="avr32_ap"
2260             cpuflags="-mpart=$cpu"
2261         ;;
2262         ap)
2263             subarch="avr32_ap"
2264             cpuflags="-march=$cpu"
2265         ;;
2266         uc3[ab]*)
2267             subarch="avr32_uc"
2268             cpuflags="-mcpu=$cpu"
2269         ;;
2270         uc)
2271             subarch="avr32_uc"
2272             cpuflags="-march=$cpu"
2273         ;;
2274     esac
2275
2276 fi
2277
2278 add_cflags $cpuflags
2279 add_asflags $cpuflags
2280
2281 # compiler sanity check
2282 check_exec <<EOF
2283 int main(void){ return 0; }
2284 EOF
2285 if test "$?" != 0; then
2286     echo "$cc is unable to create an executable file."
2287     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2288         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2289         echo "Only do this if you know what cross compiling means."
2290     fi
2291     die "C compiler test failed."
2292 fi
2293
2294 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2295 check_cflags -std=c99
2296 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2297 #include <stdlib.h>
2298 EOF
2299 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2300 #include <stdlib.h>
2301 EOF
2302
2303 check_host_cflags -std=c99
2304
2305 case "$arch" in
2306     alpha|ia64|mips|parisc|sparc)
2307         spic=$shared
2308     ;;
2309     x86)
2310         subarch="x86_32"
2311         check_cc <<EOF && subarch="x86_64"
2312         int test[(int)sizeof(char*) - 7];
2313 EOF
2314         if test "$subarch" = "x86_64"; then
2315             spic=$shared
2316         fi
2317     ;;
2318 esac
2319
2320 enable $subarch
2321 enabled spic && enable pic
2322
2323 # OS specific
2324 case $target_os in
2325     haiku)
2326         prefix_default="/boot/common"
2327         network_extralibs="-lnetwork"
2328         host_libs=
2329         ;;
2330     sunos)
2331         FFSERVERLDFLAGS=""
2332         SHFLAGS='-shared -Wl,-h,$$(@F)'
2333         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2334         network_extralibs="-lsocket -lnsl"
2335         add_cppflags -D__EXTENSIONS__
2336         nm_opts='-P -g'
2337         ;;
2338     netbsd)
2339         disable symver
2340         oss_indev_extralibs="-lossaudio"
2341         oss_outdev_extralibs="-lossaudio"
2342         add_cppflags -D_XOPEN_SOURCE=600
2343         ;;
2344     openbsd)
2345         enable malloc_aligned
2346         # On OpenBSD 4.5. the compiler does not use PIC unless
2347         # explicitly using -fPIC. Libav builds fine without PIC,
2348         # however the generated executable will not do anything
2349         # (simply quits with exit-code 1, no crash, no output).
2350         # Thus explicitly enable PIC here.
2351         enable pic
2352         disable symver
2353         SHFLAGS='-shared'
2354         oss_indev_extralibs="-lossaudio"
2355         oss_outdev_extralibs="-lossaudio"
2356         ;;
2357     dragonfly)
2358         enable malloc_aligned
2359         disable symver
2360         ;;
2361     freebsd)
2362         enable malloc_aligned
2363         ;;
2364     bsd/os)
2365         add_extralibs -lpoll -lgnugetopt
2366         strip="strip -d"
2367         ;;
2368     darwin)
2369         enable malloc_aligned
2370         gas="gas-preprocessor.pl $cc"
2371         enabled ppc && add_asflags -force_cpusubtype_ALL
2372         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2373         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2374         strip="${strip} -x"
2375         add_ldflags -Wl,-dynamic,-search_paths_first
2376         SLIBSUF=".dylib"
2377         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2378         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2379         FFSERVERLDFLAGS=-Wl,-bind_at_load
2380         objformat="macho"
2381         enabled x86_64 && objformat="macho64"
2382         enabled_any pic shared ||
2383             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2384         ;;
2385     mingw32*)
2386         if test $target_os = "mingw32ce"; then
2387             disable network
2388         else
2389             target_os=mingw32
2390         fi
2391         LIBTARGET=i386
2392         if enabled x86_64; then
2393             enable malloc_aligned
2394             LIBTARGET=x64
2395         elif enabled arm; then
2396             LIBTARGET=arm
2397         fi
2398         shlibdir_default="$bindir_default"
2399         disable ffserver
2400         SLIBPREF=""
2401         SLIBSUF=".dll"
2402         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2403         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2404         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2405         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2406             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2407             install -d "$(LIBDIR)"; \
2408             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2409         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2410         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'
2411         objformat="win32"
2412         enable dos_paths
2413         check_cflags -fno-common
2414         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2415                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2416                 die "ERROR: MinGW runtime version must be >= 3.15."
2417         ;;
2418     cygwin*)
2419         target_os=cygwin
2420         shlibdir_default="$bindir_default"
2421         SLIBPREF="cyg"
2422         SLIBSUF=".dll"
2423         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2424         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2425         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2426         objformat="win32"
2427         enable dos_paths
2428         check_cflags -fno-common
2429         ;;
2430     *-dos|freedos|opendos)
2431         disable ffplay ffserver
2432         disable $INDEV_LIST $OUTDEV_LIST
2433         network_extralibs="-lsocket"
2434         objformat="coff"
2435         enable dos_paths
2436         ;;
2437     linux)
2438         enable dv1394
2439         ;;
2440     irix*)
2441         target_os=irix
2442         ranlib="echo ignoring ranlib"
2443         ;;
2444     os/2*)
2445         strip="lxlite -CS"
2446         ln_s="cp -f"
2447         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2448         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2449         FFSERVERLDFLAGS=""
2450         LIBSUF="_s.a"
2451         SLIBPREF=""
2452         SLIBSUF=".dll"
2453         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2454         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2455         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2456           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2457           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2458           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2459           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2460           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2461         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2462           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2463         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2464         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2465         enable dos_paths
2466         ;;
2467     gnu/kfreebsd)
2468         ;;
2469     gnu)
2470         ;;
2471     qnx)
2472         add_cppflags -D_QNX_SOURCE
2473         network_extralibs="-lsocket"
2474         ;;
2475     none)
2476         ;;
2477     *)
2478         die "Unknown OS '$target_os'."
2479         ;;
2480 esac
2481
2482 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2483
2484 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2485
2486 set_default $PATHS_LIST
2487
2488 # we need to build at least one lib type
2489 if ! enabled_any static shared; then
2490     cat <<EOF
2491 At least one library type must be built.
2492 Specify --enable-static to build the static libraries or --enable-shared to
2493 build the shared libraries as well. To only build the shared libraries specify
2494 --disable-static in addition to --enable-shared.
2495 EOF
2496     exit 1;
2497 fi
2498
2499 disabled static && LIBNAME=""
2500
2501 die_license_disabled() {
2502     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2503 }
2504
2505 die_license_disabled gpl libx264
2506 die_license_disabled gpl libxavs
2507 die_license_disabled gpl libxvid
2508 die_license_disabled gpl postproc
2509 die_license_disabled gpl x11grab
2510
2511 die_license_disabled nonfree libfaac
2512
2513 die_license_disabled version3 libopencore_amrnb
2514 die_license_disabled version3 libopencore_amrwb
2515
2516 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2517
2518 disabled optimizations || check_cflags -fomit-frame-pointer
2519
2520 enable_pic() {
2521     enable pic
2522     add_cppflags -DPIC
2523     add_cflags   -fPIC
2524     add_asflags  -fPIC
2525 }
2526
2527 enabled pic && enable_pic
2528
2529 check_cc <<EOF || die "Symbol mangling check failed."
2530 int ff_extern;
2531 EOF
2532 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2533 extern_prefix=${sym%%ff_extern*}
2534
2535 check_cc <<EOF && enable inline_asm
2536 void foo(void) { __asm__ volatile ("" ::); }
2537 EOF
2538
2539 _restrict=
2540 for restrict_keyword in restrict __restrict__ __restrict; do
2541     check_cc <<EOF && _restrict=$restrict_keyword && break
2542 void foo(char * $restrict_keyword p);
2543 EOF
2544 done
2545
2546 check_cc <<EOF && enable attribute_packed
2547 struct { int x; } __attribute__((packed)) x;
2548 EOF
2549
2550 check_cc <<EOF && enable attribute_may_alias
2551 union { int x; } __attribute__((may_alias)) x;
2552 EOF
2553
2554 check_cc <<EOF || die "endian test failed"
2555 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2556 EOF
2557 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2558
2559 if enabled alpha; then
2560
2561     check_cflags -mieee
2562
2563 elif enabled arm; then
2564
2565     check_cflags -marm
2566     nogas=die
2567
2568     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2569         enable vfp_args
2570     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2571         case "${cross_prefix:-$cc}" in
2572             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2573             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2574 __asm__ (".eabi_attribute 28, 1");
2575 int main(void) { return 0; }
2576 EOF
2577         esac
2578         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2579     fi
2580
2581     # We have to check if pld is a nop and disable it.
2582     check_asm pld '"pld [r0]"'
2583
2584     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2585     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2586     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2587     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2588     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2589     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2590
2591     enabled_all armv6t2 shared !pic && enable_pic
2592
2593 elif enabled mips; then
2594
2595     check_asm loongson '"dmult.g $1, $2, $3"'
2596     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2597
2598 elif enabled ppc; then
2599
2600     enable local_aligned_8 local_aligned_16
2601
2602     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2603     check_asm ibm_asm   '"add 0, 0, 0"'
2604     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2605     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2606
2607     # AltiVec flags: The FSF version of GCC differs from the Apple version
2608     if enabled altivec; then
2609         nogas=warn
2610         check_cflags -maltivec -mabi=altivec &&
2611         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2612         check_cflags -faltivec
2613
2614         # check if our compiler supports Motorola AltiVec C API
2615         check_cc <<EOF || disable altivec
2616 $inc_altivec_h
2617 int main(void) {
2618     vector signed int v1, v2, v3;
2619     v1 = vec_add(v2,v3);
2620     return 0;
2621 }
2622 EOF
2623
2624         # check if our compiler supports braces for vector declarations
2625         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2626 $inc_altivec_h
2627 int main (void) { (vector int) {1}; return 0; }
2628 EOF
2629     fi
2630
2631 elif enabled sparc; then
2632
2633     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2634         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2635
2636 elif enabled x86; then
2637
2638     enable local_aligned_8 local_aligned_16
2639
2640     # check whether EBP is available on x86
2641     # As 'i' is stored on the stack, this program will crash
2642     # if the base pointer is used to access it because the
2643     # base pointer is cleared in the inline assembly code.
2644     check_exec_crash <<EOF && enable ebp_available
2645     volatile int i=0;
2646     __asm__ volatile (
2647         "xorl %%ebp, %%ebp"
2648     ::: "%ebp");
2649     return i;
2650 EOF
2651
2652     # check whether EBX is available on x86
2653     check_asm ebx_available '""::"b"(0)' &&
2654         check_asm ebx_available '"":::"%ebx"'
2655
2656     # check whether xmm clobbers are supported
2657     check_asm xmm_clobbers '"":::"%xmm0"'
2658
2659     # check whether more than 10 operands are supported
2660     check_cc <<EOF && enable ten_operands
2661 int main(void) {
2662     int x=0;
2663     __asm__ volatile(
2664         ""
2665         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2666     );
2667     return 0;
2668 }
2669 EOF
2670
2671     # check whether binutils is new enough to compile SSSE3/MMX2
2672     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2673     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2674
2675     check_asm bswap '"bswap %%eax" ::: "%eax"'
2676
2677     if ! disabled_any asm mmx yasm; then
2678         if check_cmd $yasmexe --version; then
2679             enabled x86_64 && yasm_extra="-m amd64"
2680             yasm_debug="-g dwarf2"
2681         elif check_cmd nasm -v; then
2682             yasmexe=nasm
2683             yasm_debug="-g -F dwarf"
2684             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2685         fi
2686
2687         YASMFLAGS="-f $objformat $yasm_extra"
2688         enabled pic               && append YASMFLAGS "-DPIC"
2689         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2690         case "$objformat" in
2691             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2692         esac
2693
2694         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2695             die "yasm not found, use --disable-yasm for a crippled build"
2696         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2697     fi
2698
2699     case "$cpu" in
2700         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2701             disable fast_clz
2702         ;;
2703     esac
2704
2705 fi
2706
2707 if enabled asm; then
2708     as=${gas:=$as}
2709     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2710         $nogas "GNU assembler not found, install gas-preprocessor"
2711 fi
2712
2713 if check_func dlopen; then
2714     ldl=
2715 elif check_func dlopen -ldl; then
2716     ldl=-ldl
2717 fi
2718
2719 if enabled network; then
2720     check_type "sys/types.h sys/socket.h" socklen_t
2721     check_type netdb.h "struct addrinfo"
2722     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2723     check_type netinet/in.h "struct sockaddr_in6"
2724     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2725     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2726     # Prefer arpa/inet.h over winsock2
2727     if check_header arpa/inet.h ; then
2728         check_func closesocket
2729     elif check_header winsock2.h ; then
2730         check_func_headers winsock2.h closesocket -lws2 && \
2731             network_extralibs="-lws2" || \
2732         { check_func_headers winsock2.h closesocket -lws2_32 && \
2733             network_extralibs="-lws2_32"; }
2734         check_type ws2tcpip.h socklen_t
2735         check_type ws2tcpip.h "struct addrinfo"
2736         check_type ws2tcpip.h "struct ipv6_mreq"
2737         check_type ws2tcpip.h "struct sockaddr_in6"
2738         check_type ws2tcpip.h "struct sockaddr_storage"
2739         check_struct winsock2.h "struct sockaddr" sa_len
2740     else
2741         disable network
2742     fi
2743 fi
2744
2745 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2746 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2747
2748 check_func  fcntl
2749 check_func  fork
2750 check_func  getaddrinfo $network_extralibs
2751 check_func  gethrtime
2752 check_func  getrusage
2753 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2754 check_func  inet_aton $network_extralibs
2755 check_func  isatty
2756 check_func  localtime_r
2757 check_func  ${malloc_prefix}memalign            && enable memalign
2758 check_func  mkstemp
2759 check_func  mmap
2760 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2761 check_func  setrlimit
2762 check_func  strerror_r
2763 check_func  strtok_r
2764 check_func_headers io.h setmode
2765 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2766 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2767 check_func_headers windows.h GetProcessTimes
2768 check_func_headers windows.h MapViewOfFile
2769 check_func_headers windows.h VirtualAlloc
2770
2771 check_header conio.h
2772 check_header dlfcn.h
2773 check_header dxva2api.h
2774 check_header libcrystalhd/libcrystalhd_if.h
2775 check_header malloc.h
2776 check_header poll.h
2777 check_header sys/mman.h
2778 check_header sys/resource.h
2779 check_header sys/select.h
2780 check_header termios.h
2781 check_header vdpau/vdpau.h
2782 check_header vdpau/vdpau_x11.h
2783 check_header X11/extensions/XvMClib.h
2784
2785 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2786
2787 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2788      enabled_any $need_memalign ; then
2789     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2790 fi
2791
2792 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2793 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2794
2795 # check for some common methods of building with pthread support
2796 # do this before the optional library checks as some of them require pthreads
2797 if ! disabled pthreads && ! enabled w32threads; then
2798     enable pthreads
2799     if check_func pthread_create; then
2800         :
2801     elif check_func pthread_create -pthread; then
2802         add_cflags -pthread
2803         add_extralibs -pthread
2804     elif check_func pthread_create -pthreads; then
2805         add_cflags -pthreads
2806         add_extralibs -pthreads
2807     elif check_func pthread_create -lpthreadGC2; then
2808         add_extralibs -lpthreadGC2
2809     elif ! check_lib pthread.h pthread_create -lpthread; then
2810         disable pthreads
2811     fi
2812 fi
2813
2814 for thread in $THREADS_LIST; do
2815     if enabled $thread; then
2816         test -n "$thread_type" &&
2817             die "ERROR: Only one thread type must be selected." ||
2818             thread_type="$thread"
2819     fi
2820 done
2821
2822 check_lib math.h sin -lm
2823 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsGetVersion -lcrystalhd
2824 disabled vaapi || check_lib va/va.h vaInitialize -lva
2825
2826 check_mathfunc exp2
2827 check_mathfunc exp2f
2828 check_mathfunc llrint
2829 check_mathfunc llrintf
2830 check_mathfunc log2
2831 check_mathfunc log2f
2832 check_mathfunc lrint
2833 check_mathfunc lrintf
2834 check_mathfunc round
2835 check_mathfunc roundf
2836 check_mathfunc truncf
2837
2838 # these are off by default, so fail if requested and not available
2839 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2840 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2841 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2842                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2843                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2844 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2845 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2846 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2847 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2848 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2849 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2850 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2851 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2852                         die "ERROR: libopencv not found"; }
2853 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2854 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2855                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2856 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2857                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2858 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2859 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2860 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2861 enabled libvpx     && {
2862     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2863                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2864     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2865                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2866 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2867                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2868                         die "ERROR: libx264 version must be >= 0.99."; }
2869 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2870 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2871 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2872
2873 # libdc1394 check
2874 if enabled libdc1394; then
2875     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2876         enable libdc1394_2; } ||
2877     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2878         enable libdc1394_1; } ||
2879     die "ERROR: No version of libdc1394 found "
2880 fi
2881
2882 SDL_CONFIG="${cross_prefix}sdl-config"
2883 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2884     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2885     sdl_libs=$("${SDL_CONFIG}" --libs)
2886     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2887     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2888     enable sdl &&
2889     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2890 fi
2891
2892 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2893
2894 check_header linux/fb.h
2895 check_header linux/videodev.h
2896 check_header linux/videodev2.h
2897 check_header sys/videoio.h
2898
2899 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2900 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2901 # w32api 3.12 had it defined wrong
2902 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2903
2904 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2905 { check_header dev/bktr/ioctl_meteor.h &&
2906   check_header dev/bktr/ioctl_bt848.h; } ||
2907 { check_header machine/ioctl_meteor.h &&
2908   check_header machine/ioctl_bt848.h; } ||
2909 { check_header dev/video/meteor/ioctl_meteor.h &&
2910   check_header dev/video/bktr/ioctl_bt848.h; } ||
2911 check_header dev/ic/bt8xx.h
2912
2913 check_header sys/soundcard.h
2914 check_header soundcard.h
2915
2916 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2917
2918 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2919
2920 enabled x11grab                         &&
2921 check_header X11/Xlib.h                 &&
2922 check_header X11/extensions/XShm.h      &&
2923 check_header X11/extensions/Xfixes.h    &&
2924 check_func XOpenDisplay -lX11           &&
2925 check_func XShmCreateImage -lX11 -lXext &&
2926 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2927
2928 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2929 check_cpp_condition \
2930     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2931     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2932       disable vdpau; }
2933 fi
2934
2935 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2936
2937 # add some useful compiler flags if supported
2938 check_cflags -Wdeclaration-after-statement
2939 check_cflags -Wall
2940 check_cflags -Wno-parentheses
2941 check_cflags -Wno-switch
2942 check_cflags -Wdisabled-optimization
2943 check_cflags -Wpointer-arith
2944 check_cflags -Wredundant-decls
2945 check_cflags -Wno-pointer-sign
2946 check_cflags -Wcast-qual
2947 check_cflags -Wwrite-strings
2948 check_cflags -Wtype-limits
2949 check_cflags -Wundef
2950 check_cflags -Wmissing-prototypes
2951 enabled extra_warnings && check_cflags -Winline
2952
2953 # add some linker flags
2954 check_ldflags -Wl,--warn-common
2955 check_ldflags -Wl,--as-needed
2956 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'
2957 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2958
2959 echo "X{};" > $TMPV
2960 if test_ldflags -Wl,--version-script,$TMPV; then
2961     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2962     check_cc <<EOF && enable symver_asm_label
2963 void ff_foo(void) __asm__ ("av_foo@VERSION");
2964 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2965 EOF
2966     check_cc <<EOF && enable symver_gnu_asm
2967 __asm__(".symver ff_foo,av_foo@VERSION");
2968 void ff_foo(void) {}
2969 EOF
2970 fi
2971
2972 if enabled small; then
2973     add_cflags $size_cflags
2974     optimizations="small"
2975 elif enabled optimizations; then
2976     add_cflags $speed_cflags
2977 else
2978     add_cflags $noopt_cflags
2979 fi
2980 check_cflags -fno-math-errno
2981 check_cflags -fno-signed-zeros
2982
2983 if enabled icc; then
2984     # Just warnings, no remarks
2985     check_cflags -w1
2986     # -wd: Disable following warnings
2987     # 144, 167, 556: -Wno-pointer-sign
2988     # 10006: ignoring unknown option -fno-signed-zeros
2989     # 10148: ignoring unknown option -Wno-parentheses
2990     # 10156: ignoring option '-W'; no argument required
2991     check_cflags -wd144,167,556,10006,10148,10156
2992     # 11030: Warning unknown option --as-needed
2993     # 10156: ignoring option '-export'; no argument required
2994     check_ldflags -wd10156,11030
2995     # Allow to compile with optimizations
2996     check_ldflags -march=$cpu
2997     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2998     enable ebp_available
2999     if enabled x86_32; then
3000         test ${icc_version%%.*} -ge 11 && \
3001             check_cflags -falign-stack=maintain-16-byte || \
3002             disable aligned_stack
3003     fi
3004 elif enabled ccc; then
3005     # disable some annoying warnings
3006     add_cflags -msg_disable cvtu32to64
3007     add_cflags -msg_disable embedcomment
3008     add_cflags -msg_disable needconstext
3009     add_cflags -msg_disable nomainieee
3010     add_cflags -msg_disable ptrmismatch1
3011     add_cflags -msg_disable unreachcode
3012 elif enabled gcc; then
3013     check_cflags -fno-tree-vectorize
3014     check_cflags -Werror=implicit-function-declaration
3015     check_cflags -Werror=missing-prototypes
3016 elif enabled llvm_gcc; then
3017     check_cflags -mllvm -stack-alignment=16
3018 elif enabled clang; then
3019     check_cflags -mllvm -stack-alignment=16
3020     check_cflags -Qunused-arguments
3021 elif enabled armcc; then
3022     # 2523: use of inline assembler is deprecated
3023     add_cflags -W${armcc_opt},--diag_suppress=2523
3024     add_cflags -W${armcc_opt},--diag_suppress=1207
3025     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3026     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3027 elif enabled tms470; then
3028     add_cflags -pds=824 -pds=837
3029 elif enabled pathscale; then
3030     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3031 fi
3032
3033 enabled_any $THREADS_LIST      && enable threads
3034
3035 check_deps $CONFIG_LIST       \
3036            $CONFIG_EXTRA      \
3037            $HAVE_LIST         \
3038            $DECODER_LIST      \
3039            $ENCODER_LIST      \
3040            $HWACCEL_LIST      \
3041            $PARSER_LIST       \
3042            $BSF_LIST          \
3043            $DEMUXER_LIST      \
3044            $MUXER_LIST        \
3045            $FILTER_LIST       \
3046            $INDEV_LIST        \
3047            $OUTDEV_LIST       \
3048            $PROTOCOL_LIST     \
3049            $ACODEC_TESTS      \
3050            $VCODEC_TESTS      \
3051            $LAVF_TESTS        \
3052            $LAVFI_TESTS       \
3053            $SEEK_TESTS        \
3054
3055 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3056
3057 echo "install prefix            $prefix"
3058 echo "source path               $source_path"
3059 echo "C compiler                $cc"
3060 echo "ARCH                      $arch ($cpu)"
3061 if test "$build_suffix" != ""; then
3062     echo "build suffix              $build_suffix"
3063 fi
3064 if test "$extra_version" != ""; then
3065     echo "version string suffix     $extra_version"
3066 fi
3067 echo "big-endian                ${bigendian-no}"
3068 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3069 if enabled x86; then
3070     echo "yasm                      ${yasm-no}"
3071     echo "MMX enabled               ${mmx-no}"
3072     echo "MMX2 enabled              ${mmx2-no}"
3073     echo "3DNow! enabled            ${amd3dnow-no}"
3074     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3075     echo "SSE enabled               ${sse-no}"
3076     echo "SSSE3 enabled             ${ssse3-no}"
3077     echo "CMOV enabled              ${cmov-no}"
3078     echo "CMOV is fast              ${fast_cmov-no}"
3079     echo "EBX available             ${ebx_available-no}"
3080     echo "EBP available             ${ebp_available-no}"
3081     echo "10 operands supported     ${ten_operands-no}"
3082 fi
3083 if enabled arm; then
3084     echo "ARMv5TE enabled           ${armv5te-no}"
3085     echo "ARMv6 enabled             ${armv6-no}"
3086     echo "ARMv6T2 enabled           ${armv6t2-no}"
3087     echo "ARM VFP enabled           ${armvfp-no}"
3088     echo "IWMMXT enabled            ${iwmmxt-no}"
3089     echo "NEON enabled              ${neon-no}"
3090 fi
3091 if enabled mips; then
3092     echo "MMI enabled               ${mmi-no}"
3093 fi
3094 if enabled ppc; then
3095     echo "AltiVec enabled           ${altivec-no}"
3096     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3097     echo "dcbzl available           ${dcbzl-no}"
3098 fi
3099 if enabled sparc; then
3100     echo "VIS enabled               ${vis-no}"
3101 fi
3102 echo "debug symbols             ${debug-no}"
3103 echo "strip symbols             ${stripping-no}"
3104 echo "optimizations             ${optimizations-no}"
3105 echo "static                    ${static-no}"
3106 echo "shared                    ${shared-no}"
3107 echo "postprocessing support    ${postproc-no}"
3108 echo "new filter support        ${avfilter-no}"
3109 echo "network support           ${network-no}"
3110 echo "threading support         ${thread_type-no}"
3111 echo "SDL support               ${sdl-no}"
3112 echo "Sun medialib support      ${mlib-no}"
3113 echo "AVISynth enabled          ${avisynth-no}"
3114 echo "frei0r enabled            ${frei0r-no}"
3115 echo "libdc1394 support         ${libdc1394-no}"
3116 echo "libdirac enabled          ${libdirac-no}"
3117 echo "libfaac enabled           ${libfaac-no}"
3118 echo "libgsm enabled            ${libgsm-no}"
3119 echo "libmp3lame enabled        ${libmp3lame-no}"
3120 echo "libnut enabled            ${libnut-no}"
3121 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3122 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3123 echo "libopencv support         ${libopencv-no}"
3124 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3125 echo "librtmp enabled           ${librtmp-no}"
3126 echo "libschroedinger enabled   ${libschroedinger-no}"
3127 echo "libspeex enabled          ${libspeex-no}"
3128 echo "libtheora enabled         ${libtheora-no}"
3129 echo "libvorbis enabled         ${libvorbis-no}"
3130 echo "libvpx enabled            ${libvpx-no}"
3131 echo "libx264 enabled           ${libx264-no}"
3132 echo "libxavs enabled           ${libxavs-no}"
3133 echo "libxvid enabled           ${libxvid-no}"
3134 echo "zlib enabled              ${zlib-no}"
3135 echo "bzlib enabled             ${bzlib-no}"
3136 echo
3137
3138 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3139     echo "Enabled ${type}s:"
3140     eval list=\$$(toupper $type)_LIST
3141     print_enabled '_*' $list | sort | pr -3 -t
3142     echo
3143 done
3144
3145 license="LGPL version 2.1 or later"
3146 if enabled nonfree; then
3147     license="nonfree and unredistributable"
3148 elif enabled gplv3; then
3149     license="GPL version 3 or later"
3150 elif enabled lgplv3; then
3151     license="LGPL version 3 or later"
3152 elif enabled gpl; then
3153     license="GPL version 2 or later"
3154 fi
3155
3156 echo "License: $license"
3157
3158 echo "Creating config.mak and config.h..."
3159
3160 # build tree in object directory if source path is different from current one
3161 if enabled source_path_used; then
3162     DIRS="
3163         doc
3164         libavcodec
3165         libavcodec/$arch
3166         libavdevice
3167         libavfilter
3168         libavfilter/$arch
3169         libavfilter/libmpcodecs
3170         libavfilter/libmpcodecs/libvo
3171         libavformat
3172         libavutil
3173         libavutil/$arch
3174         libpostproc
3175         libswscale
3176         libswscale/$arch
3177         tests
3178         tools
3179     "
3180     FILES="
3181         Makefile
3182         common.mak
3183         subdir.mak
3184         doc/texi2pod.pl
3185         libavcodec/Makefile
3186         libavcodec/${arch}/Makefile
3187         libavdevice/Makefile
3188         libavfilter/Makefile
3189         libavfilter/${arch}/Makefile
3190         libavformat/Makefile
3191         libavutil/Makefile
3192         libpostproc/Makefile
3193         libswscale/Makefile
3194     "
3195     map 'mkdir -p $v' $DIRS;
3196     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3197 fi
3198
3199 enabled stripping || strip="echo skipping strip"
3200
3201 config_files="$TMPH config.mak"
3202
3203 cat > config.mak <<EOF
3204 # Automatically generated by configure - do not modify!
3205 ifndef FFMPEG_CONFIG_MAK
3206 FFMPEG_CONFIG_MAK=1
3207 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3208 prefix=$prefix
3209 LIBDIR=\$(DESTDIR)$libdir
3210 SHLIBDIR=\$(DESTDIR)$shlibdir
3211 INCDIR=\$(DESTDIR)$incdir
3212 BINDIR=\$(DESTDIR)$bindir
3213 DATADIR=\$(DESTDIR)$datadir
3214 MANDIR=\$(DESTDIR)$mandir
3215 SRC_PATH="$source_path"
3216 SRC_PATH_BARE=$source_path
3217 BUILD_ROOT="$PWD"
3218 CC_IDENT=$cc_ident
3219 ARCH=$arch
3220 CC=$cc
3221 AS=$as
3222 LD=$ld
3223 DEPCC=$dep_cc
3224 YASM=$yasmexe
3225 YASMDEP=$yasmexe
3226 AR=$ar
3227 RANLIB=$ranlib
3228 CP=cp -p
3229 LN_S=$ln_s
3230 STRIP=$strip
3231 CPPFLAGS=$CPPFLAGS
3232 CFLAGS=$CFLAGS
3233 ASFLAGS=$ASFLAGS
3234 CC_O=$CC_O
3235 LDFLAGS=$LDFLAGS
3236 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3237 SHFLAGS=$SHFLAGS
3238 YASMFLAGS=$YASMFLAGS
3239 BUILDSUF=$build_suffix
3240 FULLNAME=$FULLNAME
3241 LIBPREF=$LIBPREF
3242 LIBSUF=$LIBSUF
3243 LIBNAME=$LIBNAME
3244 SLIBPREF=$SLIBPREF
3245 SLIBSUF=$SLIBSUF
3246 EXESUF=$EXESUF
3247 EXTRA_VERSION=$extra_version
3248 DEPFLAGS=$DEPFLAGS
3249 CCDEP=$CCDEP
3250 ASDEP=$ASDEP
3251 CC_DEPFLAGS=$CC_DEPFLAGS
3252 AS_DEPFLAGS=$AS_DEPFLAGS
3253 HOSTCC=$host_cc
3254 HOSTCFLAGS=$host_cflags
3255 HOSTEXESUF=$HOSTEXESUF
3256 HOSTLDFLAGS=$host_ldflags
3257 HOSTLIBS=$host_libs
3258 TARGET_EXEC=$target_exec
3259 TARGET_PATH=$target_path
3260 SDL_LIBS=$sdl_libs
3261 SDL_CFLAGS=$sdl_cflags
3262 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3263 EXTRALIBS=$extralibs
3264 INSTALL=install
3265 LIBTARGET=${LIBTARGET}
3266 SLIBNAME=${SLIBNAME}
3267 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3268 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3269 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3270 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3271 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3272 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3273 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3274 EOF
3275
3276 get_version(){
3277     name=$1
3278     file=$source_path/$2
3279     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3280     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3281     lcname=$(tolower $name)
3282     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3283     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3284 }
3285
3286 get_version LIBSWSCALE  libswscale/swscale.h
3287 get_version LIBPOSTPROC libpostproc/postprocess.h
3288 get_version LIBAVCODEC  libavcodec/avcodec.h
3289 get_version LIBAVDEVICE libavdevice/avdevice.h
3290 get_version LIBAVFORMAT libavformat/version.h
3291 get_version LIBAVUTIL   libavutil/avutil.h
3292 get_version LIBAVFILTER libavfilter/avfilter.h
3293
3294 cat > $TMPH <<EOF
3295 /* Automatically generated by configure - do not modify! */
3296 #ifndef FFMPEG_CONFIG_H
3297 #define FFMPEG_CONFIG_H
3298 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3299 #define FFMPEG_LICENSE "$(c_escape $license)"
3300 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3301 #define CC_TYPE "$cc_type"
3302 #define CC_VERSION $cc_version
3303 #define restrict $_restrict
3304 #define EXTERN_PREFIX "${extern_prefix}"
3305 #define EXTERN_ASM ${extern_prefix}
3306 #define SLIBSUF "$SLIBSUF"
3307 EOF
3308
3309 test -n "$malloc_prefix" &&
3310     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3311
3312 if enabled small || disabled optimizations; then
3313     echo "#undef  av_always_inline"  >> $TMPH
3314     if enabled small; then
3315         echo "#define av_always_inline inline"  >> $TMPH
3316     else
3317         echo "#define av_always_inline av_unused"  >> $TMPH
3318     fi
3319 fi
3320
3321 if enabled yasm; then
3322     append config_files $TMPASM
3323     printf '' >$TMPASM
3324 fi
3325
3326 print_config ARCH_   "$config_files" $ARCH_LIST
3327 print_config HAVE_   "$config_files" $HAVE_LIST
3328 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3329                                      $CONFIG_EXTRA      \
3330                                      $DECODER_LIST      \
3331                                      $ENCODER_LIST      \
3332                                      $HWACCEL_LIST      \
3333                                      $PARSER_LIST       \
3334                                      $BSF_LIST          \
3335                                      $DEMUXER_LIST      \
3336                                      $MUXER_LIST        \
3337                                      $FILTER_LIST       \
3338                                      $PROTOCOL_LIST     \
3339                                      $INDEV_LIST        \
3340                                      $OUTDEV_LIST       \
3341
3342 cat >>config.mak <<EOF
3343 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3344 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3345 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3346 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3347 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3348 EOF
3349
3350 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3351 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3352
3353 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3354 cp_if_changed $TMPH config.h
3355 touch .config
3356
3357 enabled yasm && cp_if_changed $TMPASM config.asm
3358
3359 cat > $TMPH <<EOF
3360 /* Generated by ffconf */
3361 #ifndef AVUTIL_AVCONFIG_H
3362 #define AVUTIL_AVCONFIG_H
3363 EOF
3364
3365 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3366
3367 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3368
3369 cp_if_changed $TMPH libavutil/avconfig.h
3370
3371 test -n "$WARNINGS" && printf "\n$WARNINGS"
3372
3373 # build pkg-config files
3374
3375 pkgconfig_generate(){
3376 name=$1
3377 shortname=${name#lib}${build_suffix}
3378 comment=$2
3379 version=$3
3380 libs=$4
3381 requires=$5
3382 enabled ${name#lib} || return 0
3383 cat <<EOF > $name/$name.pc
3384 prefix=$prefix
3385 exec_prefix=\${prefix}
3386 libdir=$libdir
3387 includedir=$incdir
3388
3389 Name: $name
3390 Description: $comment
3391 Version: $version
3392 Requires: $(enabled shared || echo $requires)
3393 Requires.private: $(enabled shared && echo $requires)
3394 Conflicts:
3395 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3396 Libs.private: $(enabled shared && echo $libs)
3397 Cflags: -I\${includedir}
3398 EOF
3399 cat <<EOF > $name/$name-uninstalled.pc
3400 prefix=
3401 exec_prefix=
3402 libdir=\${pcfiledir}
3403 includedir=${source_path}
3404
3405 Name: $name
3406 Description: $comment
3407 Version: $version
3408 Requires: $requires
3409 Conflicts:
3410 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3411 Cflags: -I\${includedir}
3412 EOF
3413 }
3414
3415 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION"
3416 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3417 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3418 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3419 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3420 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION"
3421 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"