configure: Add the http protocol as an auto-enabled dependency of the rtsp demuxer...
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avcore         disable libavcore build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --enable-postproc        enable GPLed postprocessing support [no]
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --enable-w32threads      use Win32 threads [no]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101   --disable-fastdiv        disable table-based division
102   --enable-small           optimize for size instead of speed
103   --disable-aandct         disable AAN DCT code
104   --disable-dct            disable DCT code
105   --disable-fft            disable FFT code
106   --disable-golomb         disable Golomb code
107   --disable-huffman        disable Huffman code
108   --disable-lpc            disable LPC code
109   --disable-mdct           disable MDCT code
110   --disable-rdft           disable RDFT code
111   --disable-vaapi          disable VAAPI code
112   --disable-vdpau          disable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
117   --disable-everything     disable all components listed below
118   --disable-encoder=NAME   disable encoder NAME
119   --enable-encoder=NAME    enable encoder NAME
120   --disable-encoders       disable all encoders
121   --disable-decoder=NAME   disable decoder NAME
122   --enable-decoder=NAME    enable decoder NAME
123   --disable-decoders       disable all decoders
124   --disable-hwaccel=NAME   disable hwaccel NAME
125   --enable-hwaccel=NAME    enable hwaccel NAME
126   --disable-hwaccels       disable all hwaccels
127   --disable-muxer=NAME     disable muxer NAME
128   --enable-muxer=NAME      enable muxer NAME
129   --disable-muxers         disable all muxers
130   --disable-demuxer=NAME   disable demuxer NAME
131   --enable-demuxer=NAME    enable demuxer NAME
132   --disable-demuxers       disable all demuxers
133   --enable-parser=NAME     enable parser NAME
134   --disable-parser=NAME    disable parser NAME
135   --disable-parsers        disable all parsers
136   --enable-bsf=NAME        enable bitstream filter NAME
137   --disable-bsf=NAME       disable bitstream filter NAME
138   --disable-bsfs           disable all bitstream filters
139   --enable-protocol=NAME   enable protocol NAME
140   --disable-protocol=NAME  disable protocol NAME
141   --disable-protocols      disable all protocols
142   --disable-indev=NAME     disable input device NAME
143   --disable-outdev=NAME    disable output device NAME
144   --disable-indevs         disable input devices
145   --disable-outdevs        disable output devices
146   --disable-devices        disable all devices
147   --enable-filter=NAME     enable filter NAME
148   --disable-filter=NAME    disable filter NAME
149   --disable-filters        disable all filters
150   --list-decoders          show all available decoders
151   --list-encoders          show all available encoders
152   --list-hwaccels          show all available hardware accelerators
153   --list-muxers            show all available muxers
154   --list-demuxers          show all available demuxers
155   --list-parsers           show all available parsers
156   --list-protocols         show all available protocols
157   --list-bsfs              show all available bitstream filters
158   --list-indevs            show all available input devices
159   --list-outdevs           show all available output devices
160   --list-filters           show all available filters
161
162 External library support:
163   --enable-avisynth        enable reading of AVISynth script files [no]
164   --enable-bzlib           enable bzlib [autodetect]
165   --enable-frei0r          enable frei0r video filtering
166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
168   --enable-libopencv       enable video filtering via libopencv [no]
169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
170                            and libraw1394 [no]
171   --enable-libdirac        enable Dirac support via libdirac [no]
172   --enable-libfaac         enable FAAC support via libfaac [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 [$arch]
216   --cpu=CPU                select the minimum required CPU (affects
217                            instruction selection, may crash on older CPUs)
218   --disable-asm            disable all assembler optimizations
219   --disable-altivec        disable AltiVec optimizations
220   --disable-amd3dnow       disable 3DNow! optimizations
221   --disable-amd3dnowext    disable 3DNow! extended optimizations
222   --disable-mmx            disable MMX optimizations
223   --disable-mmx2           disable MMX2 optimizations
224   --disable-sse            disable SSE optimizations
225   --disable-ssse3          disable SSSE3 optimizations
226   --disable-armv5te        disable armv5te optimizations
227   --disable-armv6          disable armv6 optimizations
228   --disable-armv6t2        disable armv6t2 optimizations
229   --disable-armvfp         disable ARM VFP optimizations
230   --disable-iwmmxt         disable iwmmxt optimizations
231   --disable-mmi            disable MMI optimizations
232   --disable-neon           disable neon optimizations
233   --disable-vis            disable VIS optimizations
234   --disable-yasm           disable use of yasm assembler
235   --enable-pic             build position-independent code
236   --malloc-prefix=PFX      prefix malloc and related names with PFX
237   --enable-sram            allow use of on-chip SRAM
238
239 Developer options (useful when working on FFmpeg itself):
240   --disable-debug          disable debugging symbols
241   --enable-debug=LEVEL     set the debug level [$debuglevel]
242   --disable-optimizations  disable compiler optimizations
243   --enable-extra-warnings  enable more compiler warnings
244   --disable-stripping      disable stripping of executables and shared libraries
245   --samples=PATH           location of test samples for FATE
246
247 NOTE: Object files are built at the place where configure is launched.
248 EOF
249   exit 0
250 }
251
252 quotes='""'
253
254 log(){
255     echo "$@" >> $logfile
256 }
257
258 log_file(){
259     log BEGIN $1
260     pr -n -t $1 >> $logfile
261     log END $1
262 }
263
264 echolog(){
265     log "$@"
266     echo "$@"
267 }
268
269 warn(){
270     log "WARNING: $*"
271     WARNINGS="${WARNINGS}WARNING: $*\n"
272 }
273
274 die(){
275     echolog "$@"
276     cat <<EOF
277
278 If you think configure made a mistake, make sure you are using the latest
279 version from SVN.  If the latest version fails, report the problem to the
280 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
281 EOF
282     if disabled logging; then
283         cat <<EOF
284 Rerun configure with logging enabled (do not use --disable-logging), and
285 include the log this produces with your report.
286 EOF
287     else
288 cat <<EOF
289 Include the log file "$logfile" produced by configure as this will help
290 solving the problem.
291 EOF
292     fi
293     exit 1
294 }
295
296 # Avoid locale weirdness, besides we really just want to translate ASCII.
297 toupper(){
298     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
299 }
300
301 tolower(){
302     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
303 }
304
305 c_escape(){
306     echo "$*" | sed 's/["\\]/\\\0/g'
307 }
308
309 sh_quote(){
310     v=$(echo "$1" | sed "s/'/'\\\\''/g")
311     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
312     echo "$v"
313 }
314
315 filter(){
316     pat=$1
317     shift
318     for v; do
319         eval "case $v in $pat) echo $v ;; esac"
320     done
321 }
322
323 map(){
324     m=$1
325     shift
326     for v; do eval $m; done
327 }
328
329 set_all(){
330     value=$1
331     shift
332     for var in $*; do
333         eval $var=$value
334     done
335 }
336
337 set_weak(){
338     value=$1
339     shift
340     for var; do
341         eval : \${$var:=$value}
342     done
343 }
344
345 pushvar(){
346     for var in $*; do
347         eval level=\${${var}_level:=0}
348         eval ${var}_${level}="\$$var"
349         eval ${var}_level=$(($level+1))
350     done
351 }
352
353 popvar(){
354     for var in $*; do
355         eval level=\${${var}_level:-0}
356         test $level = 0 && continue
357         eval level=$(($level-1))
358         eval $var="\${${var}_${level}}"
359         eval ${var}_level=$level
360         eval unset ${var}_${level}
361     done
362 }
363
364 enable(){
365     set_all yes $*
366 }
367
368 disable(){
369     set_all no $*
370 }
371
372 enable_weak(){
373     set_weak yes $*
374 }
375
376 disable_weak(){
377     set_weak no $*
378 }
379
380 enable_safe(){
381     for var; do
382         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
383     done
384 }
385
386 disable_safe(){
387     for var; do
388         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
389     done
390 }
391
392 do_enable_deep(){
393     for var; do
394         enabled $var && continue
395         eval sel="\$${var}_select"
396         eval sgs="\$${var}_suggest"
397         pushvar var sgs
398         enable_deep $sel
399         popvar sgs
400         enable_deep_weak $sgs
401         popvar var
402     done
403 }
404
405 enable_deep(){
406     do_enable_deep $*
407     enable $*
408 }
409
410 enable_deep_weak(){
411     do_enable_deep $*
412     enable_weak $*
413 }
414
415 enabled(){
416     test "${1#!}" = "$1" && op== || op=!=
417     eval test "x\$${1#!}" $op "xyes"
418 }
419
420 disabled(){
421     test "${1#!}" = "$1" && op== || op=!=
422     eval test "x\$${1#!}" $op "xno"
423 }
424
425 enabled_all(){
426     for opt; do
427         enabled $opt || return 1
428     done
429 }
430
431 disabled_all(){
432     for opt; do
433         disabled $opt || return 1
434     done
435 }
436
437 enabled_any(){
438     for opt; do
439         enabled $opt && return 0
440     done
441 }
442
443 disabled_any(){
444     for opt; do
445         disabled $opt && return 0
446     done
447     return 1
448 }
449
450 set_default(){
451     for opt; do
452         eval : \${$opt:=\$${opt}_default}
453     done
454 }
455
456 is_in(){
457     value=$1
458     shift
459     for var in $*; do
460         [ $var = $value ] && return 0
461     done
462     return 1
463 }
464
465 check_deps(){
466     for cfg; do
467         cfg="${cfg#!}"
468         enabled ${cfg}_checking && die "Circular dependency for $cfg."
469         disabled ${cfg}_checking && continue
470         enable ${cfg}_checking
471
472         eval dep_all="\$${cfg}_deps"
473         eval dep_any="\$${cfg}_deps_any"
474         eval dep_sel="\$${cfg}_select"
475         eval dep_sgs="\$${cfg}_suggest"
476         eval dep_ifa="\$${cfg}_if"
477         eval dep_ifn="\$${cfg}_if_any"
478
479         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
480         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
481         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
482
483         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
484         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
485         enabled_all  $dep_all || disable $cfg
486         enabled_any  $dep_any || disable $cfg
487         disabled_any $dep_sel && disable $cfg
488
489         if enabled $cfg; then
490             eval dep_extralibs="\$${cfg}_extralibs"
491             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
492             enable_deep $dep_sel
493             enable_deep_weak $dep_sgs
494         fi
495
496         disable ${cfg}_checking
497     done
498 }
499
500 print_config_h(){
501     enabled $1 && v=1 || v=0
502     echo "#define $2 $v"
503 }
504
505 print_config_mak(){
506     enabled $1 && v= || v=!
507     echo "$v$2=yes"
508 }
509
510 print_config_asm(){
511     enabled $1 && echo "%define $2"
512 }
513
514 print_config(){
515     pfx=$1
516     files=$2
517     shift 2
518     for cfg; do
519         ucname="$(toupper $cfg)"
520         for f in $files; do
521             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
522         done
523     done
524 }
525
526 print_enabled(){
527     test "$1" = -n && end=" " && shift || end="\n"
528     suf=$1
529     shift
530     for v; do
531         enabled $v && printf "%s$end" ${v%$suf};
532     done
533 }
534
535 append(){
536     var=$1
537     shift
538     eval "$var=\"\$$var $*\""
539 }
540
541 prepend(){
542     var=$1
543     shift
544     eval "$var=\"$* \$$var\""
545 }
546
547 add_cppflags(){
548     append CPPFLAGS $($filter_cppflags "$@")
549 }
550
551 add_cflags(){
552     append CFLAGS $($filter_cflags "$@")
553 }
554
555 add_asflags(){
556     append ASFLAGS $($filter_asflags "$@")
557 }
558
559 add_ldflags(){
560     append LDFLAGS "$@"
561 }
562
563 add_extralibs(){
564     prepend extralibs "$@"
565 }
566
567 check_cmd(){
568     log "$@"
569     "$@" >> $logfile 2>&1
570 }
571
572 check_cc(){
573     log check_cc "$@"
574     cat > $TMPC
575     log_file $TMPC
576     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
577 }
578
579 check_cpp(){
580     log check_cpp "$@"
581     cat > $TMPC
582     log_file $TMPC
583     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
584 }
585
586 check_as(){
587     log check_as "$@"
588     cat > $TMPC
589     log_file $TMPC
590     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
591 }
592
593 check_asm(){
594     log check_asm "$@"
595     name="$1"
596     code="$2"
597     shift 2
598     disable $name
599     check_as "$@" <<EOF && enable $name
600 void foo(void){ __asm__ volatile($code); }
601 EOF
602 }
603
604 check_yasm(){
605     log check_yasm "$@"
606     echo "$1" > $TMPS
607     log_file $TMPS
608     shift 1
609     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
610 }
611
612 check_ld(){
613     log check_ld "$@"
614     flags=''
615     libs=''
616     for f; do
617         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
618     done
619     check_cc $($filter_cflags $flags) || return
620     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
621 }
622
623 check_cppflags(){
624     log check_cppflags "$@"
625     set -- $($filter_cppflags "$@")
626     check_cc "$@" <<EOF && append CPPFLAGS "$@"
627 int x;
628 EOF
629 }
630
631 check_cflags(){
632     log check_cflags "$@"
633     set -- $($filter_cflags "$@")
634     check_cc "$@" <<EOF && append CFLAGS "$@"
635 int x;
636 EOF
637 }
638
639 test_ldflags(){
640     log test_ldflags "$@"
641     check_ld "$@" <<EOF
642 int main(void){ return 0; }
643 EOF
644 }
645
646 check_ldflags(){
647     log check_ldflags "$@"
648     test_ldflags "$@" && add_ldflags "$@"
649 }
650
651 check_header(){
652     log check_header "$@"
653     header=$1
654     shift
655     disable_safe $header
656     check_cpp "$@" <<EOF && enable_safe $header
657 #include <$header>
658 int x;
659 EOF
660 }
661
662 check_func(){
663     log check_func "$@"
664     func=$1
665     shift
666     disable $func
667     check_ld "$@" <<EOF && enable $func
668 extern int $func();
669 int main(void){ $func(); }
670 EOF
671 }
672
673 check_mathfunc(){
674     log check_mathfunc "$@"
675     func=$1
676     shift
677     disable $func
678     check_ld "$@" <<EOF && enable $func
679 #include <math.h>
680 float foo(float f) { return $func(f); }
681 int main(void){ return 0; }
682 EOF
683 }
684
685 check_func_headers(){
686     log check_func_headers "$@"
687     headers=$1
688     func=$2
689     shift 2
690     disable $func
691     incs=""
692     for hdr in $headers; do
693         incs="$incs
694 #include <$hdr>"
695     done
696     check_ld "$@" <<EOF && enable $func && enable_safe $headers
697 $incs
698 int main(int argc, char **argv){
699     return (long) $func;
700 }
701 EOF
702 }
703
704 check_cpp_condition(){
705     log check_cpp_condition "$@"
706     header=$1
707     condition=$2
708     shift 2
709     check_cpp $($filter_cppflags "$@") <<EOF
710 #include <$header>
711 #if !($condition)
712 #error "unsatisfied condition: $condition"
713 #endif
714 EOF
715 }
716
717 check_lib(){
718     log check_lib "$@"
719     header="$1"
720     func="$2"
721     shift 2
722     check_header $header && check_func $func "$@" && add_extralibs "$@"
723 }
724
725 check_lib2(){
726     log check_lib2 "$@"
727     headers="$1"
728     func="$2"
729     shift 2
730     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
731 }
732
733 check_exec(){
734     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
735 }
736
737 check_exec_crash(){
738     code=$(cat)
739
740     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
741     # are safe but may not be available everywhere.  Thus we use
742     # raise(SIGTERM) instead.  The check is run in a subshell so we
743     # can redirect the "Terminated" message from the shell.  SIGBUS
744     # is not defined by standard C so it is used conditionally.
745
746     (check_exec "$@") >> $logfile 2>&1 <<EOF
747 #include <signal.h>
748 static void sighandler(int sig){
749     raise(SIGTERM);
750 }
751 int main(void){
752     signal(SIGILL, sighandler);
753     signal(SIGFPE, sighandler);
754     signal(SIGSEGV, sighandler);
755 #ifdef SIGBUS
756     signal(SIGBUS, sighandler);
757 #endif
758     { $code }
759 }
760 EOF
761 }
762
763 check_type(){
764     log check_type "$@"
765     headers=$1
766     type=$2
767     shift 2
768     disable_safe "$type"
769     incs=""
770     for hdr in $headers; do
771         incs="$incs
772 #include <$hdr>"
773     done
774     check_cc "$@" <<EOF && enable_safe "$type"
775 $incs
776 $type v;
777 EOF
778 }
779
780 check_struct(){
781     log check_type "$@"
782     headers=$1
783     struct=$2
784     member=$3
785     shift 3
786     disable_safe "${struct}_${member}"
787     incs=""
788     for hdr in $headers; do
789         incs="$incs
790 #include <$hdr>"
791     done
792     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
793 $incs
794 const void *p = &(($struct *)0)->$member;
795 EOF
796 }
797
798 require(){
799     name="$1"
800     header="$2"
801     func="$3"
802     shift 3
803     check_lib $header $func "$@" || die "ERROR: $name not found"
804 }
805
806 require2(){
807     name="$1"
808     headers="$2"
809     func="$3"
810     shift 3
811     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
812 }
813
814 check_host_cc(){
815     log check_host_cc "$@"
816     cat > $TMPC
817     log_file $TMPC
818     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
819 }
820
821 check_host_cflags(){
822     log check_host_cflags "$@"
823     check_host_cc "$@" <<EOF && append host_cflags "$@"
824 int x;
825 EOF
826 }
827
828 apply(){
829     file=$1
830     shift
831     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
832 }
833
834 cp_if_changed(){
835     cmp -s "$1" "$2" &&
836         echo "$2 is unchanged" ||
837         cp -f "$1" "$2"
838 }
839
840 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
841 # system-dependent things.
842
843 COMPONENT_LIST="
844     bsfs
845     decoders
846     demuxers
847     encoders
848     filters
849     hwaccels
850     indevs
851     muxers
852     outdevs
853     parsers
854     protocols
855 "
856
857 CONFIG_LIST="
858     $COMPONENT_LIST
859     aandct
860     avcodec
861     avcore
862     avdevice
863     avfilter
864     avformat
865     avisynth
866     bzlib
867     dct
868     doc
869     dwt
870     dxva2
871     fastdiv
872     ffmpeg
873     ffplay
874     ffprobe
875     ffserver
876     fft
877     frei0r
878     golomb
879     gpl
880     gray
881     h264dsp
882     h264pred
883     hardcoded_tables
884     huffman
885     libdc1394
886     libdirac
887     libfaac
888     libgsm
889     libmp3lame
890     libnut
891     libopencore_amrnb
892     libopencore_amrwb
893     libopencv
894     libopenjpeg
895     librtmp
896     libschroedinger
897     libspeex
898     libtheora
899     libvorbis
900     libvpx
901     libx264
902     libxavs
903     libxvid
904     lpc
905     lsp
906     mdct
907     memalign_hack
908     mlib
909     mpegaudio_hp
910     network
911     nonfree
912     pic
913     postproc
914     rdft
915     runtime_cpudetect
916     shared
917     small
918     sram
919     static
920     swscale
921     swscale_alpha
922     vaapi
923     vdpau
924     version3
925     x11grab
926     zlib
927 "
928
929 THREADS_LIST='
930     pthreads
931     w32threads
932 '
933
934 ARCH_LIST='
935     alpha
936     arm
937     avr32
938     avr32_ap
939     avr32_uc
940     bfin
941     ia64
942     m68k
943     mips
944     mips64
945     parisc
946     ppc
947     ppc64
948     s390
949     sh4
950     sparc
951     sparc64
952     tomi
953     x86
954     x86_32
955     x86_64
956 '
957
958 ARCH_EXT_LIST='
959     altivec
960     amd3dnow
961     amd3dnowext
962     armv5te
963     armv6
964     armv6t2
965     armvfp
966     iwmmxt
967     mmi
968     mmx
969     mmx2
970     neon
971     ppc4xx
972     sse
973     ssse3
974     vis
975 '
976
977 HAVE_LIST_PUB='
978     bigendian
979     fast_unaligned
980 '
981
982 HAVE_LIST="
983     $ARCH_EXT_LIST
984     $HAVE_LIST_PUB
985     $THREADS_LIST
986     aligned_stack
987     alsa_asoundlib_h
988     altivec_h
989     arpa_inet_h
990     attribute_may_alias
991     attribute_packed
992     bswap
993     closesocket
994     cmov
995     conio_h
996     dcbzl
997     dev_bktr_ioctl_bt848_h
998     dev_bktr_ioctl_meteor_h
999     dev_ic_bt8xx_h
1000     dev_video_meteor_ioctl_meteor_h
1001     dev_video_bktr_ioctl_bt848_h
1002     dlfcn_h
1003     dlopen
1004     dos_paths
1005     ebp_available
1006     ebx_available
1007     exp2
1008     exp2f
1009     fast_64bit
1010     fast_clz
1011     fast_cmov
1012     fcntl
1013     fork
1014     getaddrinfo
1015     gethrtime
1016     GetProcessMemoryInfo
1017     GetProcessTimes
1018     getrusage
1019     gnu_as
1020     struct_rusage_ru_maxrss
1021     ibm_asm
1022     inet_aton
1023     inline_asm
1024     isatty
1025     ldbrx
1026     libdc1394_1
1027     libdc1394_2
1028     llrint
1029     llrintf
1030     local_aligned_16
1031     local_aligned_8
1032     log2
1033     log2f
1034     loongson
1035     lrint
1036     lrintf
1037     lzo1x_999_compress
1038     machine_ioctl_bt848_h
1039     machine_ioctl_meteor_h
1040     malloc_h
1041     memalign
1042     mkstemp
1043     pld
1044     posix_memalign
1045     round
1046     roundf
1047     sdl
1048     sdl_video_size
1049     setmode
1050     socklen_t
1051     soundcard_h
1052     poll_h
1053     setrlimit
1054     strerror_r
1055     strtok_r
1056     struct_addrinfo
1057     struct_ipv6_mreq
1058     struct_sockaddr_in6
1059     struct_sockaddr_sa_len
1060     struct_sockaddr_storage
1061     symver
1062     symver_gnu_asm
1063     symver_asm_label
1064     sys_mman_h
1065     sys_resource_h
1066     sys_select_h
1067     sys_soundcard_h
1068     sys_videoio_h
1069     ten_operands
1070     termios_h
1071     threads
1072     truncf
1073     vfp_args
1074     VirtualAlloc
1075     winsock2_h
1076     xform_asm
1077     yasm
1078 "
1079
1080 # options emitted with CONFIG_ prefix but not available on command line
1081 CONFIG_EXTRA="
1082     avutil
1083     gplv3
1084     lgplv3
1085 "
1086
1087 CMDLINE_SELECT="
1088     $ARCH_EXT_LIST
1089     $CONFIG_LIST
1090     $THREADS_LIST
1091     asm
1092     cross_compile
1093     debug
1094     extra_warnings
1095     logging
1096     optimizations
1097     stripping
1098     yasm
1099 "
1100
1101 PATHS_LIST='
1102     bindir
1103     datadir
1104     incdir
1105     libdir
1106     mandir
1107     prefix
1108     shlibdir
1109 '
1110
1111 CMDLINE_SET="
1112     $PATHS_LIST
1113     ar
1114     arch
1115     as
1116     build_suffix
1117     cc
1118     cpu
1119     cross_prefix
1120     dep_cc
1121     extra_version
1122     host_cc
1123     host_cflags
1124     host_ldflags
1125     host_libs
1126     host_os
1127     ld
1128     logfile
1129     malloc_prefix
1130     nm
1131     samples
1132     source_path
1133     strip
1134     sysinclude
1135     sysroot
1136     target_exec
1137     target_os
1138     target_path
1139 "
1140
1141 CMDLINE_APPEND="
1142     extra_cflags
1143 "
1144
1145 # code dependency declarations
1146
1147 # architecture extensions
1148
1149 armv5te_deps="arm"
1150 armv6_deps="arm"
1151 armv6t2_deps="arm"
1152 armvfp_deps="arm"
1153 iwmmxt_deps="arm"
1154 neon_deps="arm"
1155
1156 mmi_deps="mips"
1157
1158 altivec_deps="ppc"
1159 ppc4xx_deps="ppc"
1160
1161 vis_deps="sparc"
1162
1163 x86_64_suggest="cmov fast_cmov"
1164 amd3dnow_deps="mmx"
1165 amd3dnowext_deps="amd3dnow"
1166 mmx_deps="x86"
1167 mmx2_deps="mmx"
1168 sse_deps="mmx"
1169 ssse3_deps="sse"
1170
1171 aligned_stack_if_any="ppc x86"
1172 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1173 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1174 fast_unaligned_if_any="armv6 ppc x86"
1175
1176 need_memalign="altivec neon sse"
1177 inline_asm_deps="!tms470"
1178
1179 symver_if_any="symver_asm_label symver_gnu_asm"
1180
1181 # subsystems
1182 dct_select="rdft"
1183 mdct_select="fft"
1184 rdft_select="fft"
1185
1186 # decoders / encoders / hardware accelerators
1187 aac_decoder_select="mdct rdft"
1188 aac_encoder_select="mdct"
1189 ac3_decoder_select="mdct ac3_parser"
1190 alac_encoder_select="lpc"
1191 amrnb_decoder_select="lsp"
1192 atrac1_decoder_select="mdct"
1193 atrac3_decoder_select="mdct"
1194 binkaudio_dct_decoder_select="mdct rdft dct"
1195 binkaudio_rdft_decoder_select="mdct rdft"
1196 cavs_decoder_select="golomb"
1197 cook_decoder_select="mdct"
1198 cscd_decoder_suggest="zlib"
1199 dca_decoder_select="mdct"
1200 dnxhd_encoder_select="aandct"
1201 dxa_decoder_select="zlib"
1202 eac3_decoder_select="ac3_decoder"
1203 eamad_decoder_select="aandct"
1204 eatgq_decoder_select="aandct"
1205 eatqi_decoder_select="aandct"
1206 ffv1_decoder_select="golomb"
1207 flac_decoder_select="golomb"
1208 flac_encoder_select="golomb lpc"
1209 flashsv_decoder_select="zlib"
1210 flashsv_encoder_select="zlib"
1211 flv_decoder_select="h263_decoder"
1212 flv_encoder_select="h263_encoder"
1213 fraps_decoder_select="huffman"
1214 h261_encoder_select="aandct"
1215 h263_decoder_select="h263_parser"
1216 h263_encoder_select="aandct"
1217 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1218 h263i_decoder_select="h263_decoder"
1219 h263p_encoder_select="h263_encoder"
1220 h264_decoder_select="golomb h264dsp h264pred"
1221 h264_dxva2_hwaccel_deps="dxva2api_h"
1222 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1223 h264_vaapi_hwaccel_select="vaapi"
1224 h264_vdpau_decoder_select="vdpau h264_decoder"
1225 imc_decoder_select="fft mdct"
1226 jpegls_decoder_select="golomb"
1227 jpegls_encoder_select="golomb"
1228 ljpeg_encoder_select="aandct"
1229 loco_decoder_select="golomb"
1230 mjpeg_encoder_select="aandct"
1231 mlp_decoder_select="mlp_parser"
1232 mp1float_decoder_select="dct"
1233 mp2float_decoder_select="dct"
1234 mp3adufloat_decoder_select="dct"
1235 mp3float_decoder_select="dct"
1236 mp3on4float_decoder_select="dct"
1237 mpeg1video_encoder_select="aandct"
1238 mpeg2video_encoder_select="aandct"
1239 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1240 mpeg4_encoder_select="h263_encoder"
1241 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1242 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1243 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1244 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1245 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1246 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1247 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1248 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1249 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1250 msmpeg4v1_decoder_select="h263_decoder"
1251 msmpeg4v1_encoder_select="h263_encoder"
1252 msmpeg4v2_decoder_select="h263_decoder"
1253 msmpeg4v2_encoder_select="h263_encoder"
1254 msmpeg4v3_decoder_select="h263_decoder"
1255 msmpeg4v3_encoder_select="h263_encoder"
1256 nellymoser_decoder_select="mdct"
1257 nellymoser_encoder_select="mdct"
1258 png_decoder_select="zlib"
1259 png_encoder_select="zlib"
1260 qcelp_decoder_select="lsp"
1261 qdm2_decoder_select="mdct rdft"
1262 ra_144_encoder_select="lpc"
1263 rv10_decoder_select="h263_decoder"
1264 rv10_encoder_select="h263_encoder"
1265 rv20_decoder_select="h263_decoder"
1266 rv20_encoder_select="h263_encoder"
1267 rv30_decoder_select="golomb h264pred"
1268 rv40_decoder_select="golomb h264pred"
1269 shorten_decoder_select="golomb"
1270 sipr_decoder_select="lsp"
1271 snow_decoder_select="dwt"
1272 snow_encoder_select="aandct dwt"
1273 sonic_decoder_select="golomb"
1274 sonic_encoder_select="golomb"
1275 sonic_ls_encoder_select="golomb"
1276 svq1_encoder_select="aandct"
1277 svq3_decoder_select="golomb h264dsp h264pred"
1278 svq3_decoder_suggest="zlib"
1279 theora_decoder_select="vp3_decoder"
1280 tiff_decoder_suggest="zlib"
1281 tiff_encoder_suggest="zlib"
1282 truehd_decoder_select="mlp_decoder"
1283 tscc_decoder_select="zlib"
1284 twinvq_decoder_select="mdct lsp"
1285 vc1_decoder_select="h263_decoder"
1286 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1287 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1288 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1289 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1290 vorbis_decoder_select="mdct"
1291 vorbis_encoder_select="mdct"
1292 vp6_decoder_select="huffman"
1293 vp6a_decoder_select="vp6_decoder"
1294 vp6f_decoder_select="vp6_decoder"
1295 vp8_decoder_select="h264pred"
1296 wmapro_decoder_select="mdct"
1297 wmav1_decoder_select="mdct"
1298 wmav1_encoder_select="mdct"
1299 wmav2_decoder_select="mdct"
1300 wmav2_encoder_select="mdct"
1301 wmavoice_decoder_select="lsp rdft dct mdct"
1302 wmv1_decoder_select="h263_decoder"
1303 wmv1_encoder_select="h263_encoder"
1304 wmv2_decoder_select="h263_decoder"
1305 wmv2_encoder_select="h263_encoder"
1306 wmv3_decoder_select="vc1_decoder"
1307 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1308 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1309 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1310 zlib_decoder_select="zlib"
1311 zlib_encoder_select="zlib"
1312 zmbv_decoder_select="zlib"
1313 zmbv_encoder_select="zlib"
1314
1315 vaapi_deps="va_va_h"
1316 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1317
1318 # parsers
1319 h264_parser_select="golomb h264dsp h264pred"
1320
1321 # external libraries
1322 libdirac_decoder_deps="libdirac !libschroedinger"
1323 libdirac_encoder_deps="libdirac"
1324 libfaac_encoder_deps="libfaac"
1325 libgsm_decoder_deps="libgsm"
1326 libgsm_encoder_deps="libgsm"
1327 libgsm_ms_decoder_deps="libgsm"
1328 libgsm_ms_encoder_deps="libgsm"
1329 libmp3lame_encoder_deps="libmp3lame"
1330 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1331 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1332 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1333 libopenjpeg_decoder_deps="libopenjpeg"
1334 libschroedinger_decoder_deps="libschroedinger"
1335 libschroedinger_encoder_deps="libschroedinger"
1336 libspeex_decoder_deps="libspeex"
1337 libtheora_encoder_deps="libtheora"
1338 libvorbis_encoder_deps="libvorbis"
1339 libvpx_decoder_deps="libvpx"
1340 libvpx_encoder_deps="libvpx"
1341 libx264_encoder_deps="libx264"
1342 libxavs_encoder_deps="libxavs"
1343 libxvid_encoder_deps="libxvid"
1344
1345 # demuxers / muxers
1346 ac3_demuxer_deps="ac3_parser"
1347 asf_stream_muxer_select="asf_muxer"
1348 avisynth_demuxer_deps="avisynth"
1349 dirac_demuxer_deps="dirac_parser"
1350 eac3_demuxer_select="ac3_parser"
1351 ipod_muxer_select="mov_muxer"
1352 libnut_demuxer_deps="libnut"
1353 libnut_muxer_deps="libnut"
1354 matroska_audio_muxer_select="matroska_muxer"
1355 matroska_demuxer_suggest="zlib bzlib"
1356 mov_demuxer_suggest="zlib"
1357 mp3_demuxer_deps="mpegaudio_parser"
1358 mp4_muxer_select="mov_muxer"
1359 mpegtsraw_demuxer_select="mpegts_demuxer"
1360 mxf_d10_muxer_select="mxf_muxer"
1361 ogg_demuxer_select="golomb"
1362 psp_muxer_select="mov_muxer"
1363 rtsp_demuxer_deps="sdp_demuxer"
1364 rtsp_demuxer_select="http_protocol"
1365 rtsp_muxer_deps="sdp_demuxer"
1366 rtsp_muxer_select="rtp_muxer http_protocol"
1367 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1368 sdp_demuxer_select="asf_demuxer rm_demuxer"
1369 spdif_muxer_select="aac_parser"
1370 tg2_muxer_select="mov_muxer"
1371 tgp_muxer_select="mov_muxer"
1372 w64_demuxer_deps="wav_demuxer"
1373
1374 # indevs / outdevs
1375 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1376 alsa_outdev_deps="alsa_asoundlib_h"
1377 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1378 dv1394_indev_deps="dv1394 dv_demuxer"
1379 jack_indev_deps="jack_jack_h"
1380 libdc1394_indev_deps="libdc1394"
1381 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1382 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1383 v4l_indev_deps="linux_videodev_h"
1384 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1385 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1386 vfwcap_indev_extralibs="-lavicap32"
1387 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1388 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1389
1390 # protocols
1391 gopher_protocol_deps="network"
1392 http_protocol_deps="network"
1393 http_protocol_select="tcp_protocol"
1394 mmsh_protocol_select="http_protocol"
1395 mmst_protocol_deps="network"
1396 rtmp_protocol_select="tcp_protocol"
1397 rtp_protocol_select="udp_protocol"
1398 tcp_protocol_deps="network"
1399 udp_protocol_deps="network"
1400
1401 # filters
1402 blackframe_filter_deps="gpl"
1403 frei0r_filter_deps="frei0r dlopen strtok_r"
1404 ocv_smooth_filter_deps="libopencv"
1405 yadif_filter_deps="gpl"
1406
1407 # libraries
1408 avdevice_deps="avcodec avformat"
1409 avformat_deps="avcodec"
1410
1411 # programs
1412 ffmpeg_deps="avcodec avformat swscale"
1413 ffmpeg_select="buffer_filter"
1414 ffplay_deps="avcodec avformat swscale sdl"
1415 ffplay_select="rdft"
1416 ffprobe_deps="avcodec avformat"
1417 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1418 ffserver_extralibs='$ldl'
1419
1420 doc_deps="texi2html"
1421
1422 # tests
1423
1424 test_deps(){
1425     suf1=$1
1426     suf2=$2
1427     shift 2
1428     for v; do
1429         dep=${v%=*}
1430         tests=${v#*=}
1431         for name in ${tests}; do
1432             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1433         done
1434     done
1435 }
1436
1437 set_ne_test_deps(){
1438     eval ${1}_be_test_deps="bigendian"
1439     eval ${1}_le_test_deps="!bigendian"
1440 }
1441
1442 test_deps _encoder _decoder                                             \
1443     ac3                                                                 \
1444     adpcm_g726=g726                                                     \
1445     adpcm_ima_qt                                                        \
1446     adpcm_ima_wav                                                       \
1447     adpcm_ms                                                            \
1448     adpcm_swf                                                           \
1449     adpcm_yamaha=adpcm_yam                                              \
1450     alac                                                                \
1451     asv1                                                                \
1452     asv2                                                                \
1453     bmp                                                                 \
1454     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1455     dvvideo="dv dv50"                                                   \
1456     ffv1                                                                \
1457     flac                                                                \
1458     flashsv                                                             \
1459     flv                                                                 \
1460     gif                                                                 \
1461     h261                                                                \
1462     h263="h263 h263p"                                                   \
1463     huffyuv                                                             \
1464     jpegls                                                              \
1465     mjpeg="jpg mjpeg ljpeg"                                             \
1466     mp2                                                                 \
1467     mpeg1video="mpeg mpeg1b"                                            \
1468     mpeg2video="mpeg2 mpeg2thread"                                      \
1469     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1470     msmpeg4v3=msmpeg4                                                   \
1471     msmpeg4v2                                                           \
1472     pbm=pbmpipe                                                         \
1473     pcx                                                                 \
1474     pgm="pgm pgmpipe"                                                   \
1475     ppm="ppm ppmpipe"                                                   \
1476     rawvideo="rgb yuv"                                                  \
1477     roq                                                                 \
1478     rv10                                                                \
1479     rv20                                                                \
1480     sgi                                                                 \
1481     snow="snow snowll"                                                  \
1482     svq1                                                                \
1483     targa=tga                                                           \
1484     tiff                                                                \
1485     wmav1                                                               \
1486     wmav2                                                               \
1487     wmv1                                                                \
1488     wmv2                                                                \
1489
1490 test_deps _muxer _demuxer                                               \
1491     aiff                                                                \
1492     pcm_alaw=alaw                                                       \
1493     asf                                                                 \
1494     au                                                                  \
1495     avi                                                                 \
1496     dv=dv_fmt                                                           \
1497     ffm                                                                 \
1498     flv=flv_fmt                                                         \
1499     gxf                                                                 \
1500     matroska=mkv                                                        \
1501     mmf                                                                 \
1502     mov                                                                 \
1503     pcm_mulaw=mulaw                                                     \
1504     mxf                                                                 \
1505     nut                                                                 \
1506     ogg                                                                 \
1507     rawvideo=pixfmt                                                     \
1508     rm                                                                  \
1509     swf                                                                 \
1510     mpegts=ts                                                           \
1511     voc                                                                 \
1512     wav                                                                 \
1513     yuv4mpegpipe=yuv4mpeg                                               \
1514
1515 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1516
1517 set_ne_test_deps pixdesc
1518 set_ne_test_deps pixfmts_crop
1519 set_ne_test_deps pixfmts_hflip
1520 set_ne_test_deps pixfmts_null
1521 set_ne_test_deps pixfmts_pad
1522 set_ne_test_deps pixfmts_scale
1523 set_ne_test_deps pixfmts_vflip
1524
1525 # default parameters
1526
1527 logfile="config.log"
1528
1529 # installation paths
1530 prefix_default="/usr/local"
1531 bindir_default='${prefix}/bin'
1532 datadir_default='${prefix}/share/ffmpeg'
1533 incdir_default='${prefix}/include'
1534 libdir_default='${prefix}/lib'
1535 mandir_default='${prefix}/share/man'
1536 shlibdir_default="$libdir_default"
1537
1538 # toolchain
1539 ar_default="ar"
1540 cc_default="gcc"
1541 cc_version=\"unknown\"
1542 host_cc_default="gcc"
1543 ln_s="ln -sf"
1544 nm_default="nm"
1545 objformat="elf"
1546 ranlib="ranlib"
1547 strip_default="strip"
1548 yasmexe="yasm"
1549 nogas=":"
1550
1551 nm_opts='-g'
1552
1553 # machine
1554 arch_default=$(uname -m)
1555 cpu="generic"
1556
1557 # OS
1558 target_os_default=$(tolower $(uname -s))
1559 host_os=$target_os_default
1560
1561 # configurable options
1562 enable avcodec
1563 enable avcore
1564 enable avdevice
1565 enable avfilter
1566 enable avformat
1567 enable avutil
1568 enable asm
1569 enable debug
1570 enable doc
1571 enable fastdiv
1572 enable ffmpeg
1573 enable ffplay
1574 enable ffprobe
1575 enable ffserver
1576 enable mpegaudio_hp
1577 enable network
1578 enable optimizations
1579 enable protocols
1580 enable static
1581 enable stripping
1582 enable swscale
1583 enable swscale_alpha
1584
1585 # build settings
1586 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1587 FFSERVERLDFLAGS=-Wl,-E
1588 LIBPREF="lib"
1589 LIBSUF=".a"
1590 FULLNAME='$(NAME)$(BUILDSUF)'
1591 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1592 SLIBPREF="lib"
1593 SLIBSUF=".so"
1594 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1595 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1596 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1597 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1598
1599 CC_O='-o $@'
1600
1601 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1602 host_libs='-lm'
1603
1604 target_path='$(CURDIR)'
1605
1606 # since the object filename is not given with the -MM flag, the compiler
1607 # is only able to print the basename, and we must add the path ourselves
1608 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1609 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1610
1611 # find source path
1612 source_path="$(dirname "$0")"
1613 enable source_path_used
1614 if test -f configure; then
1615     source_path="$(pwd)"
1616     disable source_path_used
1617 else
1618     source_path="$(cd "$source_path"; pwd)"
1619     echo "$source_path" | grep -q '[[:blank:]]' &&
1620         die "Out of tree builds are impossible with whitespace in source path."
1621     test -e "$source_path/config.h" &&
1622         die "Out of tree builds are impossible with config.h in source dir."
1623 fi
1624
1625 for v in "$@"; do
1626     r=${v#*=}
1627     l=${v%"$r"}
1628     r=$(sh_quote "$r")
1629     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1630 done
1631
1632 find_things(){
1633     thing=$1
1634     pattern=$2
1635     file=$source_path/$3
1636     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1637 }
1638
1639 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1640 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1641 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1642 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1643 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1644 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1645 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1646 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1647 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1648 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1649 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1650
1651 find_tests(){
1652     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1653 }
1654
1655 ACODEC_TESTS=$(find_tests acodec)
1656 VCODEC_TESTS=$(find_tests vsynth1)
1657 LAVF_TESTS=$(find_tests lavf)
1658 LAVFI_TESTS=$(find_tests lavfi)
1659 SEEK_TESTS=$(find_tests seek seek_)
1660
1661 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1662
1663 for n in $COMPONENT_LIST; do
1664     v=$(toupper ${n%s})_LIST
1665     eval enable \$$v
1666     eval ${n}_if_any="\$$v"
1667 done
1668
1669 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1670
1671 die_unknown(){
1672     echo "Unknown option \"$1\"."
1673     echo "See $0 --help for available options."
1674     exit 1
1675 }
1676
1677 show_list() {
1678     suffix=_$1
1679     shift
1680     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1681     exit 0
1682 }
1683
1684 for opt do
1685     optval="${opt#*=}"
1686     case "$opt" in
1687     --extra-ldflags=*) add_ldflags $optval
1688     ;;
1689     --extra-libs=*) add_extralibs $optval
1690     ;;
1691     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1692     ;;
1693     --enable-debug=*) debuglevel="$optval"
1694     ;;
1695     --disable-everything)
1696     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1697     ;;
1698     --enable-*=*|--disable-*=*)
1699     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1700     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1701     eval list=\$$(toupper $thing)_LIST
1702     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1703     $action $(filter "$name" $list)
1704     ;;
1705     --enable-?*|--disable-?*)
1706     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1707     if is_in $option $COMPONENT_LIST; then
1708         test $action = disable && action=unset
1709         eval $action \$$(toupper ${option%s})_LIST
1710     elif is_in $option $CMDLINE_SELECT; then
1711         $action $option
1712     else
1713         die_unknown $opt
1714     fi
1715     ;;
1716     --list-*)
1717         NAME="${opt#--list-}"
1718         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1719         NAME=${NAME%s}
1720         eval show_list $NAME \$$(toupper $NAME)_LIST
1721     ;;
1722     --help|-h) show_help
1723     ;;
1724     *)
1725     optname="${opt%%=*}"
1726     optname="${optname#--}"
1727     optname=$(echo "$optname" | sed 's/-/_/g')
1728     if is_in $optname $CMDLINE_SET; then
1729         eval $optname='$optval'
1730     elif is_in $optname $CMDLINE_APPEND; then
1731         append $optname "$optval"
1732     else
1733          die_unknown $opt
1734     fi
1735     ;;
1736     esac
1737 done
1738
1739 disabled logging && logfile=/dev/null
1740
1741 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1742 set >> $logfile
1743
1744 test -n "$cross_prefix" && enable cross_compile
1745
1746 if enabled cross_compile; then
1747     test -n "$arch" && test -n "$target_os" ||
1748         die "Must specify target arch and OS when cross-compiling"
1749 fi
1750
1751 set_default arch target_os
1752
1753 ar_default="${cross_prefix}${ar_default}"
1754 cc_default="${cross_prefix}${cc_default}"
1755 nm_default="${cross_prefix}${nm_default}"
1756 ranlib="${cross_prefix}${ranlib}"
1757 strip_default="${cross_prefix}${strip_default}"
1758
1759 sysinclude_default="${sysroot}/usr/include"
1760
1761 set_default cc nm strip sysinclude
1762 enabled cross_compile || host_cc_default=$cc
1763 set_default host_cc
1764
1765 exesuf() {
1766     case $1 in
1767         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1768     esac
1769 }
1770
1771 EXESUF=$(exesuf $target_os)
1772 HOSTEXESUF=$(exesuf $host_os)
1773
1774 # set temporary file name
1775 : ${TMPDIR:=$TEMPDIR}
1776 : ${TMPDIR:=$TMP}
1777 : ${TMPDIR:=/tmp}
1778
1779 if ! check_cmd type mktemp; then
1780     # simple replacement for missing mktemp
1781     # NOT SAFE FOR GENERAL USE
1782     mktemp(){
1783         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1784     }
1785 fi
1786
1787 tmpfile(){
1788     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1789         (set -C; exec > $tmp) 2>/dev/null ||
1790         die "Unable to create temporary file in $TMPDIR."
1791     append TMPFILES $tmp
1792     eval $1=$tmp
1793 }
1794
1795 trap 'rm -f -- $TMPFILES' EXIT
1796 trap exit HUP INT TERM
1797
1798 tmpfile TMPC  .c
1799 tmpfile TMPE  $EXESUF
1800 tmpfile TMPH  .h
1801 tmpfile TMPO  .o
1802 tmpfile TMPS  .S
1803 tmpfile TMPV  .ver
1804 tmpfile TMPSH .sh
1805 tmpfile TMPASM .asm
1806
1807 unset -f mktemp
1808
1809 # make sure we can execute files in $TMPDIR
1810 cat > $TMPSH 2>> $logfile <<EOF
1811 #! /bin/sh
1812 EOF
1813 chmod +x $TMPSH >> $logfile 2>&1
1814 if ! $TMPSH >> $logfile 2>&1; then
1815     cat <<EOF
1816 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1817 variable to another directory and make sure that it is not mounted noexec.
1818 EOF
1819     die "Sanity test failed."
1820 fi
1821
1822 filter_cflags=echo
1823 filter_cppflags=echo
1824 filter_asflags=echo
1825
1826 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1827     cc_type=llvm_gcc
1828     cc_version=__VERSION__
1829     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1830     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1831     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1832     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1833     speed_cflags='-O3'
1834     size_cflags='-Os'
1835 elif $cc -v 2>&1 | grep -qi ^gcc; then
1836     cc_type=gcc
1837     cc_version=__VERSION__
1838     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1839     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1840     if ! $cc -dumpversion | grep -q '^2\.'; then
1841         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1842         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1843     fi
1844     speed_cflags='-O3'
1845     size_cflags='-Os'
1846 elif $cc --version 2>/dev/null | grep -q Intel; then
1847     cc_type=icc
1848     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1849     cc_ident=$($cc --version | head -n1)
1850     icc_version=$($cc -dumpversion)
1851     CC_DEPFLAGS='-MMD'
1852     AS_DEPFLAGS='-MMD'
1853     speed_cflags='-O3'
1854     size_cflags='-Os'
1855     noopt_cflags='-O1'
1856 elif $cc -v 2>&1 | grep -q xlc; then
1857     cc_type=xlc
1858     cc_version="AV_STRINGIFY(__IBMC__)"
1859     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1860     speed_cflags='-O5'
1861     size_cflags='-O5 -qcompact'
1862 elif $cc -V 2>/dev/null | grep -q Compaq; then
1863     cc_type=ccc
1864     cc_version="AV_STRINGIFY(__DECC_VER)"
1865     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1866     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1867     debuglevel=3
1868     add_ldflags -Wl,-z,now # calls to libots crash without this
1869     speed_cflags='-fast'
1870     size_cflags='-O1'
1871 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1872     test -d "$sysroot" || die "No valid sysroot specified."
1873     cc_type=armcc
1874     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1875     cc_ident=$($cc --vsn | head -n1)
1876     armcc_conf="$PWD/armcc.conf"
1877     $cc --arm_linux_configure                 \
1878         --arm_linux_config_file="$armcc_conf" \
1879         --configure_sysroot="$sysroot"        \
1880         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1881         die "Error creating armcc configuration file."
1882     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1883     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1884     as_default="${cross_prefix}gcc"
1885     CC_DEPFLAGS='-MMD'
1886     AS_DEPFLAGS='-MMD'
1887     speed_cflags='-O3'
1888     size_cflags='-Os'
1889 elif $cc -version 2>/dev/null | grep -q TMS470; then
1890     cc_type=tms470
1891     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1892     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1893     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1894     CC_O='-fr=$(@D)'
1895     as_default="${cross_prefix}gcc"
1896     ld_default="${cross_prefix}gcc"
1897     TMPO=$(basename $TMPC .c).o
1898     append TMPFILES $TMPO
1899     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1900     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1901     AS_DEPFLAGS='-MMD'
1902     speed_cflags='-O3 -mf=5'
1903     size_cflags='-O3 -mf=2'
1904     filter_cflags=tms470_flags
1905     tms470_flags(){
1906         for flag; do
1907             case $flag in
1908                 -march=*|-mcpu=*)
1909                     case "${flag#*=}" in
1910                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1911                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1912                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1913                         armv6*|arm11*)          echo -mv=6   ;;
1914                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1915                                                 echo -mv=5e  ;;
1916                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1917                     esac
1918                     ;;
1919                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1920                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1921                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1922                 -msoft-float)   echo --float_support=vfplib       ;;
1923                 -O[0-3]|-mf=*)  echo $flag                        ;;
1924                 -g)             echo -g -mn                       ;;
1925                 -pds=*)         echo $flag                        ;;
1926             esac
1927         done
1928     }
1929 elif $cc -v 2>&1 | grep -q clang; then
1930     cc_type=clang
1931     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1932         cc_version=__clang_version__ || cc_version=__VERSION__
1933     cc_ident=$($cc --version | head -n1)
1934     CC_DEPFLAGS='-MMD'
1935     AS_DEPFLAGS='-MMD'
1936     speed_cflags='-O3'
1937     size_cflags='-Os'
1938 elif $cc -V 2>&1 | grep -q Sun; then
1939     cc_type=suncc
1940     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1941     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1942     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1943     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1944     speed_cflags='-O5'
1945     size_cflags='-O5 -xspace'
1946     filter_cflags=suncc_flags
1947     suncc_flags(){
1948         for flag; do
1949             case $flag in
1950                 -march=*|-mcpu=*)
1951                     case "${flag#*=}" in
1952                         native)                   echo -xtarget=native       ;;
1953                         v9|niagara)               echo -xarch=sparc          ;;
1954                         ultrasparc)               echo -xarch=sparcvis       ;;
1955                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1956                         i586|pentium)             echo -xchip=pentium        ;;
1957                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1958                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1959                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1960                         pentium4*)          echo -xtarget=pentium4           ;;
1961                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1962                         *-sse3)             echo -xarch=sse3                 ;;
1963                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1964                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1965                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1966                         k8|opteron|athlon64|athlon-fx)
1967                                                   echo -xarch=sse2a          ;;
1968                         athlon*)                  echo -xarch=pentium_proa   ;;
1969                     esac
1970                     ;;
1971                 -std=c99)             echo -xc99              ;;
1972                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1973                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1974                 -W*,*)                echo $flag              ;;
1975                 -f*-*|-W*)                                    ;;
1976                 *)                    echo $flag              ;;
1977             esac
1978         done
1979     }
1980 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1981     cc_type=pathscale
1982     cc_version=__PATHSCALE__
1983     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1984     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1985     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1986     speed_cflags='-O2'
1987     size_cflags='-Os'
1988 elif $cc -v 2>&1 | grep -q Open64; then
1989     cc_type=open64
1990     cc_version=__OPEN64__
1991     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1992     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1993     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1994     speed_cflags='-O2'
1995     size_cflags='-Os'
1996 fi
1997
1998 test -n "$cc_type" && enable $cc_type ||
1999     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2000
2001 : ${as_default:=$cc}
2002 : ${dep_cc_default:=$cc}
2003 : ${ld_default:=$cc}
2004 set_default ar as dep_cc ld
2005
2006 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2007 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2008
2009 add_cflags $extra_cflags
2010 add_asflags $extra_cflags
2011
2012 if test -n "$sysroot"; then
2013     case "$cc_type" in
2014         gcc|llvm_gcc)
2015             add_cppflags --sysroot="$sysroot"
2016             add_ldflags --sysroot="$sysroot"
2017         ;;
2018         tms470)
2019             add_cppflags -I"$sysinclude"
2020             add_ldflags  --sysroot="$sysroot"
2021         ;;
2022         clang)
2023             add_cppflags -isysroot "$sysroot"
2024             add_ldflags -isysroot "$sysroot"
2025         ;;
2026     esac
2027 fi
2028
2029 if test "$cpu" = host; then
2030     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2031
2032     case "$cc_type" in
2033         gcc|llvm_gcc)
2034             check_native(){
2035                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2036                 sed -n "/$1=/{
2037                             s/.*$1=\\([^ ]*\\).*/\\1/
2038                             p
2039                             q
2040                         }" $TMPE
2041             }
2042             cpu=$(check_native -march || check_native -mcpu)
2043         ;;
2044     esac
2045
2046     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2047 fi
2048
2049 # Deal with common $arch aliases
2050 case "$arch" in
2051     arm*)
2052         arch="arm"
2053     ;;
2054     mips|mipsel|IP*)
2055         arch="mips"
2056     ;;
2057     mips64*)
2058         arch="mips"
2059         subarch="mips64"
2060     ;;
2061     parisc|hppa)
2062         arch="parisc"
2063     ;;
2064     parisc64|hppa64)
2065         arch="parisc"
2066         subarch="parisc64"
2067     ;;
2068     "Power Macintosh"|ppc|powerpc)
2069         arch="ppc"
2070     ;;
2071     ppc64|powerpc64)
2072         arch="ppc"
2073         subarch="ppc64"
2074     ;;
2075     s390|s390x)
2076         arch="s390"
2077     ;;
2078     sh4|sh)
2079         arch="sh4"
2080     ;;
2081     sun4u|sparc64)
2082         arch="sparc"
2083         subarch="sparc64"
2084     ;;
2085     i[3-6]86|i86pc|BePC|x86_64|amd64)
2086         arch="x86"
2087     ;;
2088 esac
2089
2090 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2091 enable $arch
2092
2093 # Add processor-specific flags
2094 if test "$cpu" = generic; then
2095     : do nothing
2096 elif enabled ppc; then
2097
2098     case $(tolower $cpu) in
2099         601|ppc601|powerpc601)
2100             cpuflags="-mcpu=601"
2101             disable altivec
2102         ;;
2103         603*|ppc603*|powerpc603*)
2104             cpuflags="-mcpu=603"
2105             disable altivec
2106         ;;
2107         604*|ppc604*|powerpc604*)
2108             cpuflags="-mcpu=604"
2109             disable altivec
2110         ;;
2111         g3|75*|ppc75*|powerpc75*)
2112             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2113             disable altivec
2114         ;;
2115         g4|745*|ppc745*|powerpc745*)
2116             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2117         ;;
2118         74*|ppc74*|powerpc74*)
2119             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2120         ;;
2121         g5|970|ppc970|powerpc970|power4*)
2122             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2123         ;;
2124         cell)
2125             cpuflags="-mcpu=cell"
2126             enable ldbrx
2127         ;;
2128         e500v2)
2129             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2130             disable altivec
2131         ;;
2132         e500)
2133             cpuflags="-mcpu=8540 -mhard-float"
2134             disable altivec
2135         ;;
2136     esac
2137
2138 elif enabled x86; then
2139
2140     case $cpu in
2141         i[345]86|pentium)
2142             cpuflags="-march=$cpu"
2143             disable mmx
2144         ;;
2145         # targets that do NOT support conditional mov (cmov)
2146         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2147             cpuflags="-march=$cpu"
2148             disable cmov
2149         ;;
2150         # targets that do support conditional mov (cmov)
2151         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2152             cpuflags="-march=$cpu"
2153             enable cmov
2154             enable fast_cmov
2155         ;;
2156         # targets that do support conditional mov but on which it's slow
2157         pentium4|pentium4m|prescott|nocona)
2158             cpuflags="-march=$cpu"
2159             enable cmov
2160             disable fast_cmov
2161         ;;
2162     esac
2163
2164 elif enabled sparc; then
2165
2166     case $cpu in
2167         niagara)
2168             cpuflags="-mcpu=$cpu"
2169             disable vis
2170         ;;
2171         sparc64)
2172             cpuflags="-mcpu=v9"
2173         ;;
2174     esac
2175
2176 elif enabled arm; then
2177
2178     case $cpu in
2179         armv*)
2180             cpuflags="-march=$cpu"
2181             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2182         ;;
2183         *)
2184             cpuflags="-mcpu=$cpu"
2185             case $cpu in
2186                 cortex-a*)                               subarch=armv7a  ;;
2187                 cortex-r*)                               subarch=armv7r  ;;
2188                 cortex-m*)                               subarch=armv7m  ;;
2189                 arm11*)                                  subarch=armv6   ;;
2190                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2191                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2192             esac
2193         ;;
2194     esac
2195
2196 elif enabled alpha; then
2197
2198     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2199
2200 elif enabled bfin; then
2201
2202     cpuflags="-mcpu=$cpu"
2203
2204 elif enabled mips; then
2205
2206     cpuflags="-march=$cpu"
2207
2208 elif enabled avr32; then
2209
2210     case $cpu in
2211         ap7[02]0[0-2])
2212             subarch="avr32_ap"
2213             cpuflags="-mpart=$cpu"
2214         ;;
2215         ap)
2216             subarch="avr32_ap"
2217             cpuflags="-march=$cpu"
2218         ;;
2219         uc3[ab]*)
2220             subarch="avr32_uc"
2221             cpuflags="-mcpu=$cpu"
2222         ;;
2223         uc)
2224             subarch="avr32_uc"
2225             cpuflags="-march=$cpu"
2226         ;;
2227     esac
2228
2229 fi
2230
2231 add_cflags $cpuflags
2232 add_asflags $cpuflags
2233
2234 # compiler sanity check
2235 check_exec <<EOF
2236 int main(void){ return 0; }
2237 EOF
2238 if test "$?" != 0; then
2239     echo "$cc is unable to create an executable file."
2240     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2241         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2242         echo "Only do this if you know what cross compiling means."
2243     fi
2244     die "C compiler test failed."
2245 fi
2246
2247 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2248 check_cflags -std=c99
2249 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2250 #include <stdlib.h>
2251 EOF
2252 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2253 #include <stdlib.h>
2254 EOF
2255
2256 check_host_cflags -std=c99
2257
2258 case "$arch" in
2259     alpha|ia64|mips|parisc|sparc)
2260         spic=$shared
2261     ;;
2262     x86)
2263         subarch="x86_32"
2264         check_cc <<EOF && subarch="x86_64"
2265         int test[(int)sizeof(char*) - 7];
2266 EOF
2267         if test "$subarch" = "x86_64"; then
2268             spic=$shared
2269         fi
2270     ;;
2271 esac
2272
2273 enable $subarch
2274 enabled spic && enable pic
2275
2276 # OS specific
2277 case $target_os in
2278     haiku)
2279         prefix_default="/boot/common"
2280         network_extralibs="-lnetwork"
2281         ;;
2282     sunos)
2283         FFSERVERLDFLAGS=""
2284         SHFLAGS='-shared -Wl,-h,$$(@F)'
2285         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2286         network_extralibs="-lsocket -lnsl"
2287         add_cppflags -D__EXTENSIONS__
2288         nm_opts='-P -g'
2289         ;;
2290     netbsd)
2291         oss_indev_extralibs="-lossaudio"
2292         oss_outdev_extralibs="-lossaudio"
2293         add_cppflags -D_XOPEN_SOURCE=600
2294         ;;
2295     openbsd)
2296         enable malloc_aligned
2297         # On OpenBSD 4.5. the compiler does not use PIC unless
2298         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2299         # however the generated executable will not do anything
2300         # (simply quits with exit-code 1, no crash, no output).
2301         # Thus explicitly enable PIC here.
2302         enable pic
2303         SHFLAGS='-shared'
2304         oss_indev_extralibs="-lossaudio"
2305         oss_outdev_extralibs="-lossaudio"
2306         ;;
2307     freebsd|dragonfly)
2308         enable malloc_aligned
2309         ;;
2310     bsd/os)
2311         add_extralibs -lpoll -lgnugetopt
2312         strip="strip -d"
2313         ;;
2314     darwin)
2315         enable malloc_aligned
2316         gas="gas-preprocessor.pl $cc"
2317         enabled ppc && add_asflags -force_cpusubtype_ALL
2318         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2319         strip="${strip} -x"
2320         add_ldflags -Wl,-dynamic,-search_paths_first
2321         SLIBSUF=".dylib"
2322         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2323         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2324         FFSERVERLDFLAGS=-Wl,-bind_at_load
2325         objformat="macho"
2326         enabled x86_64 && objformat="macho64"
2327         enabled_any pic shared ||
2328             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2329         ;;
2330     mingw32*)
2331         if test $target_os = "mingw32ce"; then
2332             disable network
2333         else
2334             target_os=mingw32
2335         fi
2336         LIBTARGET=i386
2337         if enabled x86_64; then
2338             enable malloc_aligned
2339             LIBTARGET=x64
2340         elif enabled arm; then
2341             LIBTARGET=arm
2342         fi
2343         shlibdir_default="$bindir_default"
2344         disable ffserver
2345         SLIBPREF=""
2346         SLIBSUF=".dll"
2347         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2348         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2349         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2350         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2351             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2352             install -d "$(LIBDIR)"; \
2353             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2354         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2355         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'
2356         objformat="win32"
2357         enable dos_paths
2358         check_cflags -fno-common
2359         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2360                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2361                 die "ERROR: MinGW runtime version must be >= 3.15."
2362         ;;
2363     cygwin*)
2364         target_os=cygwin
2365         shlibdir_default="$bindir_default"
2366         SLIBPREF="cyg"
2367         SLIBSUF=".dll"
2368         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2369         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2370         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2371         objformat="win32"
2372         enable dos_paths
2373         check_cflags -fno-common
2374         ;;
2375     *-dos|freedos|opendos)
2376         disable ffplay ffserver
2377         disable $INDEV_LIST $OUTDEV_LIST
2378         network_extralibs="-lsocket"
2379         objformat="coff"
2380         enable dos_paths
2381         ;;
2382     linux)
2383         enable dv1394
2384         ;;
2385     irix*)
2386         target_os=irix
2387         ranlib="echo ignoring ranlib"
2388         ;;
2389     os/2*)
2390         strip="lxlite"
2391         ln_s="cp -f"
2392         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2393         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2394         FFSERVERLDFLAGS=""
2395         LIBSUF="_s.a"
2396         SLIBPREF=""
2397         SLIBSUF=".dll"
2398         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2399         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2400         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2401           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2402           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2403           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2404           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2405           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2406         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2407           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2408         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2409         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2410         enable dos_paths
2411         ;;
2412     gnu/kfreebsd)
2413         ;;
2414     gnu)
2415         ;;
2416     none)
2417         ;;
2418     *)
2419         die "Unknown OS '$target_os'."
2420         ;;
2421 esac
2422
2423 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2424
2425 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2426
2427 set_default $PATHS_LIST
2428
2429 # we need to build at least one lib type
2430 if ! enabled_any static shared; then
2431     cat <<EOF
2432 At least one library type must be built.
2433 Specify --enable-static to build the static libraries or --enable-shared to
2434 build the shared libraries as well. To only build the shared libraries specify
2435 --disable-static in addition to --enable-shared.
2436 EOF
2437     exit 1;
2438 fi
2439
2440 disabled static && LIBNAME=""
2441
2442 die_license_disabled() {
2443     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2444 }
2445
2446 die_license_disabled gpl libx264
2447 die_license_disabled gpl libxavs
2448 die_license_disabled gpl libxvid
2449 die_license_disabled gpl postproc
2450 die_license_disabled gpl x11grab
2451
2452 die_license_disabled nonfree libfaac
2453
2454 die_license_disabled version3 libopencore_amrnb
2455 die_license_disabled version3 libopencore_amrwb
2456
2457 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2458
2459 check_deps $ARCH_EXT_LIST
2460
2461 disabled optimizations || check_cflags -fomit-frame-pointer
2462
2463 enable_pic() {
2464     enable pic
2465     add_cppflags -DPIC
2466     add_cflags   -fPIC
2467     add_asflags  -fPIC
2468 }
2469
2470 enabled pic && enable_pic
2471
2472 check_cc <<EOF || die "Symbol mangling check failed."
2473 int ff_extern;
2474 EOF
2475 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2476 extern_prefix=${sym%%ff_extern*}
2477
2478 check_cc <<EOF && enable inline_asm
2479 void foo(void) { __asm__ volatile ("" ::); }
2480 EOF
2481
2482 _restrict=
2483 for restrict_keyword in restrict __restrict__ __restrict; do
2484     check_cc <<EOF && _restrict=$restrict_keyword && break
2485 void foo(char * $restrict_keyword p);
2486 EOF
2487 done
2488
2489 check_cc <<EOF && enable attribute_packed
2490 struct { int x; } __attribute__((packed)) x;
2491 EOF
2492
2493 check_cc <<EOF && enable attribute_may_alias
2494 union { int x; } __attribute__((may_alias)) x;
2495 EOF
2496
2497 check_cc <<EOF || die "endian test failed"
2498 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2499 EOF
2500 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2501
2502 if enabled alpha; then
2503
2504     check_cflags -mieee
2505
2506 elif enabled arm; then
2507
2508     check_cflags -marm
2509     nogas=die
2510
2511     check_ld <<EOF && enable vfp_args
2512 __asm__ (".eabi_attribute 28, 1");
2513 int main(void) { return 0; }
2514 EOF
2515
2516     # We have to check if pld is a nop and disable it.
2517     check_asm pld '"pld [r0]"'
2518
2519     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2520     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2521     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2522     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2523     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2524     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2525
2526     enabled_all armv6t2 shared !pic && enable_pic
2527
2528 elif enabled mips; then
2529
2530     check_asm loongson '"dmult.g $1, $2, $3"'
2531     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2532
2533 elif enabled ppc; then
2534
2535     enable local_aligned_8 local_aligned_16
2536
2537     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2538     check_asm ibm_asm   '"add 0, 0, 0"'
2539     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2540     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2541
2542     # AltiVec flags: The FSF version of GCC differs from the Apple version
2543     if enabled altivec; then
2544         nogas=warn
2545         check_cflags -maltivec -mabi=altivec &&
2546         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2547         check_cflags -faltivec
2548
2549         # check if our compiler supports Motorola AltiVec C API
2550         check_cc <<EOF || disable altivec
2551 $inc_altivec_h
2552 int main(void) {
2553     vector signed int v1, v2, v3;
2554     v1 = vec_add(v2,v3);
2555     return 0;
2556 }
2557 EOF
2558
2559         # check if our compiler supports braces for vector declarations
2560         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2561 $inc_altivec_h
2562 int main (void) { (vector int) {1}; return 0; }
2563 EOF
2564     fi
2565
2566 elif enabled sparc; then
2567
2568     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2569         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2570
2571 elif enabled x86; then
2572
2573     enable local_aligned_8 local_aligned_16
2574
2575     # check whether EBP is available on x86
2576     # As 'i' is stored on the stack, this program will crash
2577     # if the base pointer is used to access it because the
2578     # base pointer is cleared in the inline assembly code.
2579     check_exec_crash <<EOF && enable ebp_available
2580     volatile int i=0;
2581     __asm__ volatile (
2582         "xorl %%ebp, %%ebp"
2583     ::: "%ebp");
2584     return i;
2585 EOF
2586
2587     # check whether EBX is available on x86
2588     check_asm ebx_available '""::"b"(0)' &&
2589         check_asm ebx_available '"":::"%ebx"'
2590
2591     # check whether more than 10 operands are supported
2592     check_cc <<EOF && enable ten_operands
2593 int main(void) {
2594     int x=0;
2595     __asm__ volatile(
2596         ""
2597         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2598     );
2599     return 0;
2600 }
2601 EOF
2602
2603     # check whether binutils is new enough to compile SSSE3/MMX2
2604     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2605     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2606
2607     check_asm bswap '"bswap %%eax" ::: "%eax"'
2608
2609     if ! disabled_any asm mmx yasm; then
2610         if check_cmd $yasmexe --version; then
2611             enabled x86_64 && yasm_extra="-m amd64"
2612             yasm_debug="-g dwarf2"
2613         elif check_cmd nasm -v; then
2614             yasmexe=nasm
2615             yasm_debug="-g -F dwarf"
2616             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2617         fi
2618
2619         YASMFLAGS="-f $objformat $yasm_extra"
2620         enabled pic               && append YASMFLAGS "-DPIC"
2621         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2622         case "$objformat" in
2623             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2624         esac
2625
2626         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2627             die "yasm not found, use --disable-yasm for a crippled build"
2628     fi
2629
2630     case "$cpu" in
2631         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2632             disable fast_clz
2633         ;;
2634     esac
2635
2636 fi
2637
2638 if enabled asm; then
2639     as=${gas:=$as}
2640     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2641         $nogas "GNU assembler not found, install gas-preprocessor"
2642 fi
2643
2644 if check_func dlopen; then
2645     ldl=
2646 elif check_func dlopen -ldl; then
2647     ldl=-ldl
2648 fi
2649
2650 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2651 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2652
2653 check_func  fcntl
2654 check_func  fork
2655 check_func  getaddrinfo $network_extralibs
2656 check_func  gethrtime
2657 check_func  getrusage
2658 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2659 check_func  inet_aton $network_extralibs
2660 check_func  isatty
2661 check_func  ${malloc_prefix}memalign            && enable memalign
2662 check_func  mkstemp
2663 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2664 check_func  setrlimit
2665 check_func  strerror_r
2666 check_func  strtok_r
2667 check_func_headers io.h setmode
2668 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2669 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2670 check_func_headers windows.h GetProcessTimes
2671 check_func_headers windows.h VirtualAlloc
2672
2673 check_header conio.h
2674 check_header dlfcn.h
2675 check_header dxva2api.h
2676 check_header malloc.h
2677 check_header poll.h
2678 check_header sys/mman.h
2679 check_header sys/resource.h
2680 check_header sys/select.h
2681 check_header termios.h
2682 check_header vdpau/vdpau.h
2683 check_header vdpau/vdpau_x11.h
2684 check_header X11/extensions/XvMClib.h
2685
2686 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2687
2688 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2689      enabled_any $need_memalign ; then
2690     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2691 fi
2692
2693 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2694 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2695
2696 # check for some common methods of building with pthread support
2697 # do this before the optional library checks as some of them require pthreads
2698 if ! disabled pthreads && ! enabled w32threads; then
2699     enable pthreads
2700     if check_func pthread_create; then
2701         :
2702     elif check_func pthread_create -pthread; then
2703         add_cflags -pthread
2704         add_extralibs -pthread
2705     elif check_func pthread_create -pthreads; then
2706         add_cflags -pthreads
2707         add_extralibs -pthreads
2708     elif check_func pthread_create -lpthreadGC2; then
2709         add_extralibs -lpthreadGC2
2710     elif ! check_lib pthread.h pthread_create -lpthread; then
2711         disable pthreads
2712     fi
2713 fi
2714
2715 for thread in $THREADS_LIST; do
2716     if enabled $thread; then
2717         test -n "$thread_type" &&
2718             die "ERROR: Only one thread type must be selected." ||
2719             thread_type="$thread"
2720     fi
2721 done
2722
2723 check_lib math.h sin -lm
2724 disabled vaapi || check_lib va/va.h vaInitialize -lva
2725
2726 check_mathfunc exp2
2727 check_mathfunc exp2f
2728 check_mathfunc llrint
2729 check_mathfunc llrintf
2730 check_mathfunc log2
2731 check_mathfunc log2f
2732 check_mathfunc lrint
2733 check_mathfunc lrintf
2734 check_mathfunc round
2735 check_mathfunc roundf
2736 check_mathfunc truncf
2737
2738 # these are off by default, so fail if requested and not available
2739 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2740 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2741 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2742                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2743                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2744 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2745 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2746 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h hip_decode_init -lmp3lame
2747 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2748 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2749 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2750 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2751                         die "ERROR: libopencv not found"; }
2752 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2753 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2754                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2755 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2756                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2757 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2758 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2759 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2760 enabled libvpx     && {
2761     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2762                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2763     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2764                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2765 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2766                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2767                         die "ERROR: libx264 version must be >= 0.98."; }
2768 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2769 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2770 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2771
2772 # libdc1394 check
2773 if enabled libdc1394; then
2774     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2775         enable libdc1394_2; } ||
2776     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2777         enable libdc1394_1; } ||
2778     die "ERROR: No version of libdc1394 found "
2779 fi
2780
2781 SDL_CONFIG="${cross_prefix}sdl-config"
2782 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2783     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2784     sdl_libs=$("${SDL_CONFIG}" --libs)
2785     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2786     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2787     enable sdl &&
2788     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2789 fi
2790
2791 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2792
2793 if enabled network; then
2794     check_type "sys/types.h sys/socket.h" socklen_t
2795     check_type netdb.h "struct addrinfo"
2796     check_type netinet/in.h "struct ipv6_mreq"
2797     check_type netinet/in.h "struct sockaddr_in6"
2798     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2799     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2800     # Prefer arpa/inet.h over winsock2
2801     if check_header arpa/inet.h ; then
2802         check_func closesocket
2803     elif check_header winsock2.h ; then
2804         check_func_headers winsock2.h closesocket -lws2 && \
2805             network_extralibs="-lws2" || \
2806         { check_func_headers winsock2.h closesocket -lws2_32 && \
2807             network_extralibs="-lws2_32"; }
2808         check_type ws2tcpip.h socklen_t
2809         check_type ws2tcpip.h "struct addrinfo"
2810         check_type ws2tcpip.h "struct ipv6_mreq"
2811         check_type ws2tcpip.h "struct sockaddr_in6"
2812         check_type ws2tcpip.h "struct sockaddr_storage"
2813         check_struct winsock2.h "struct sockaddr" sa_len
2814     else
2815         disable network
2816     fi
2817 fi
2818
2819 check_header linux/videodev.h
2820 check_header linux/videodev2.h
2821 check_header sys/videoio.h
2822
2823 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2824 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2825 # w32api 3.12 had it defined wrong
2826 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2827
2828 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2829 { check_header dev/bktr/ioctl_meteor.h &&
2830   check_header dev/bktr/ioctl_bt848.h; } ||
2831 { check_header machine/ioctl_meteor.h &&
2832   check_header machine/ioctl_bt848.h; } ||
2833 { check_header dev/video/meteor/ioctl_meteor.h &&
2834   check_header dev/video/bktr/ioctl_bt848.h; } ||
2835 check_header dev/ic/bt8xx.h
2836
2837 check_header sys/soundcard.h
2838 check_header soundcard.h
2839
2840 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2841
2842 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2843
2844 enabled x11grab                         &&
2845 check_header X11/Xlib.h                 &&
2846 check_header X11/extensions/XShm.h      &&
2847 check_header X11/extensions/Xfixes.h    &&
2848 check_func XOpenDisplay -lX11           &&
2849 check_func XShmCreateImage -lX11 -lXext &&
2850 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2851
2852 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2853 check_cpp_condition \
2854     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2855     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2856       disable vdpau; }
2857 fi
2858
2859 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2860
2861 # add some useful compiler flags if supported
2862 check_cflags -Wdeclaration-after-statement
2863 check_cflags -Wall
2864 check_cflags -Wno-parentheses
2865 check_cflags -Wno-switch
2866 check_cflags -Wdisabled-optimization
2867 check_cflags -Wpointer-arith
2868 check_cflags -Wredundant-decls
2869 check_cflags -Wno-pointer-sign
2870 check_cflags -Wcast-qual
2871 check_cflags -Wwrite-strings
2872 check_cflags -Wtype-limits
2873 check_cflags -Wundef
2874 check_cflags -Wmissing-prototypes
2875 enabled extra_warnings && check_cflags -Winline
2876
2877 # add some linker flags
2878 check_ldflags -Wl,--warn-common
2879 check_ldflags -Wl,--as-needed
2880 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)/libavcore -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2881 check_ldflags -Wl,-Bsymbolic
2882
2883 echo "X{};" > $TMPV
2884 if test_ldflags -Wl,--version-script,$TMPV; then
2885     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2886     check_cc <<EOF && enable symver_asm_label
2887 void ff_foo(void) __asm__ ("av_foo@VERSION");
2888 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2889 EOF
2890     check_cc <<EOF && enable symver_gnu_asm
2891 __asm__(".symver ff_foo,av_foo@VERSION");
2892 void ff_foo(void) {}
2893 EOF
2894 fi
2895
2896 if enabled small; then
2897     add_cflags $size_cflags
2898     optimizations="small"
2899 elif enabled optimizations; then
2900     add_cflags $speed_cflags
2901 else
2902     add_cflags $noopt_cflags
2903 fi
2904 check_cflags -fno-math-errno
2905 check_cflags -fno-signed-zeros
2906
2907 if enabled icc; then
2908     # Just warnings, no remarks
2909     check_cflags -w1
2910     # -wd: Disable following warnings
2911     # 144, 167, 556: -Wno-pointer-sign
2912     # 10006: ignoring unknown option -fno-signed-zeros
2913     # 10156: ignoring option '-W'; no argument required
2914     check_cflags -wd144,167,556,10006,10156
2915     # 11030: Warning unknown option --as-needed
2916     # 10156: ignoring option '-export'; no argument required
2917     check_ldflags -wd10156,11030
2918     # Allow to compile with optimizations
2919     check_ldflags -march=$cpu
2920     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2921     enable ebp_available
2922     if enabled x86_32; then
2923         test ${icc_version%%.*} -ge 11 && \
2924             check_cflags -falign-stack=maintain-16-byte || \
2925             disable aligned_stack
2926     fi
2927 elif enabled ccc; then
2928     # disable some annoying warnings
2929     add_cflags -msg_disable cvtu32to64
2930     add_cflags -msg_disable embedcomment
2931     add_cflags -msg_disable needconstext
2932     add_cflags -msg_disable nomainieee
2933     add_cflags -msg_disable ptrmismatch1
2934     add_cflags -msg_disable unreachcode
2935 elif enabled gcc; then
2936     check_cflags -fno-tree-vectorize
2937     check_cflags -Werror=implicit-function-declaration
2938     check_cflags -Werror=missing-prototypes
2939 elif enabled llvm_gcc; then
2940     check_cflags -mllvm -stack-alignment=16
2941 elif enabled clang; then
2942     check_cflags -mllvm -stack-alignment=16
2943     check_cflags -Qunused-arguments
2944 elif enabled armcc; then
2945     # 2523: use of inline assembler is deprecated
2946     add_cflags -W${armcc_opt},--diag_suppress=2523
2947     add_cflags -W${armcc_opt},--diag_suppress=1207
2948 elif enabled tms470; then
2949     add_cflags -pds=824 -pds=837
2950 fi
2951
2952 enabled_any $THREADS_LIST      && enable threads
2953
2954 check_deps $CONFIG_LIST       \
2955            $CONFIG_EXTRA      \
2956            $HAVE_LIST         \
2957            $DECODER_LIST      \
2958            $ENCODER_LIST      \
2959            $HWACCEL_LIST      \
2960            $PARSER_LIST       \
2961            $BSF_LIST          \
2962            $DEMUXER_LIST      \
2963            $MUXER_LIST        \
2964            $FILTER_LIST       \
2965            $INDEV_LIST        \
2966            $OUTDEV_LIST       \
2967            $PROTOCOL_LIST     \
2968            $ACODEC_TESTS      \
2969            $VCODEC_TESTS      \
2970            $LAVF_TESTS        \
2971            $LAVFI_TESTS       \
2972            $SEEK_TESTS        \
2973
2974 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2975
2976 echo "install prefix            $prefix"
2977 echo "source path               $source_path"
2978 echo "C compiler                $cc"
2979 echo "ARCH                      $arch ($cpu)"
2980 if test "$build_suffix" != ""; then
2981     echo "build suffix              $build_suffix"
2982 fi
2983 if test "$extra_version" != ""; then
2984     echo "version string suffix     $extra_version"
2985 fi
2986 echo "big-endian                ${bigendian-no}"
2987 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2988 if enabled x86; then
2989     echo "yasm                      ${yasm-no}"
2990     echo "MMX enabled               ${mmx-no}"
2991     echo "MMX2 enabled              ${mmx2-no}"
2992     echo "3DNow! enabled            ${amd3dnow-no}"
2993     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2994     echo "SSE enabled               ${sse-no}"
2995     echo "SSSE3 enabled             ${ssse3-no}"
2996     echo "CMOV enabled              ${cmov-no}"
2997     echo "CMOV is fast              ${fast_cmov-no}"
2998     echo "EBX available             ${ebx_available-no}"
2999     echo "EBP available             ${ebp_available-no}"
3000     echo "10 operands supported     ${ten_operands-no}"
3001 fi
3002 if enabled arm; then
3003     echo "ARMv5TE enabled           ${armv5te-no}"
3004     echo "ARMv6 enabled             ${armv6-no}"
3005     echo "ARMv6T2 enabled           ${armv6t2-no}"
3006     echo "ARM VFP enabled           ${armvfp-no}"
3007     echo "IWMMXT enabled            ${iwmmxt-no}"
3008     echo "NEON enabled              ${neon-no}"
3009 fi
3010 if enabled mips; then
3011     echo "MMI enabled               ${mmi-no}"
3012 fi
3013 if enabled ppc; then
3014     echo "AltiVec enabled           ${altivec-no}"
3015     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3016     echo "dcbzl available           ${dcbzl-no}"
3017 fi
3018 if enabled sparc; then
3019     echo "VIS enabled               ${vis-no}"
3020 fi
3021 echo "debug symbols             ${debug-no}"
3022 echo "strip symbols             ${stripping-no}"
3023 echo "optimizations             ${optimizations-no}"
3024 echo "static                    ${static-no}"
3025 echo "shared                    ${shared-no}"
3026 echo "postprocessing support    ${postproc-no}"
3027 echo "new filter support        ${avfilter-no}"
3028 echo "network support           ${network-no}"
3029 echo "threading support         ${thread_type-no}"
3030 echo "SDL support               ${sdl-no}"
3031 echo "Sun medialib support      ${mlib-no}"
3032 echo "AVISynth enabled          ${avisynth-no}"
3033 echo "frei0r enabled            ${frei0r-no}"
3034 echo "libdc1394 support         ${libdc1394-no}"
3035 echo "libdirac enabled          ${libdirac-no}"
3036 echo "libfaac enabled           ${libfaac-no}"
3037 echo "libgsm enabled            ${libgsm-no}"
3038 echo "libmp3lame enabled        ${libmp3lame-no}"
3039 echo "libnut enabled            ${libnut-no}"
3040 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3041 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3042 echo "libopencv support         ${libopencv-no}"
3043 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3044 echo "librtmp enabled           ${librtmp-no}"
3045 echo "libschroedinger enabled   ${libschroedinger-no}"
3046 echo "libspeex enabled          ${libspeex-no}"
3047 echo "libtheora enabled         ${libtheora-no}"
3048 echo "libvorbis enabled         ${libvorbis-no}"
3049 echo "libvpx enabled            ${libvpx-no}"
3050 echo "libx264 enabled           ${libx264-no}"
3051 echo "libxavs enabled           ${libxavs-no}"
3052 echo "libxvid enabled           ${libxvid-no}"
3053 echo "zlib enabled              ${zlib-no}"
3054 echo "bzlib enabled             ${bzlib-no}"
3055 echo
3056
3057 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3058     echo "Enabled ${type}s:"
3059     eval list=\$$(toupper $type)_LIST
3060     print_enabled '_*' $list | sort | pr -3 -t
3061     echo
3062 done
3063
3064 license="LGPL version 2.1 or later"
3065 if enabled nonfree; then
3066     license="nonfree and unredistributable"
3067 elif enabled gplv3; then
3068     license="GPL version 3 or later"
3069 elif enabled lgplv3; then
3070     license="LGPL version 3 or later"
3071 elif enabled gpl; then
3072     license="GPL version 2 or later"
3073 fi
3074
3075 echo "License: $license"
3076
3077 echo "Creating config.mak and config.h..."
3078
3079 # build tree in object directory if source path is different from current one
3080 if enabled source_path_used; then
3081     DIRS="
3082         doc
3083         libavcodec
3084         libavcodec/$arch
3085         libavcore
3086         libavdevice
3087         libavfilter
3088         libavfilter/$arch
3089         libavformat
3090         libavutil
3091         libavutil/$arch
3092         libpostproc
3093         libswscale
3094         libswscale/$arch
3095         tests
3096         tools
3097     "
3098     FILES="
3099         Makefile
3100         common.mak
3101         subdir.mak
3102         doc/texi2pod.pl
3103         libavcodec/Makefile
3104         libavcodec/${arch}/Makefile
3105         libavcore/Makefile
3106         libavdevice/Makefile
3107         libavfilter/Makefile
3108         libavfilter/${arch}/Makefile
3109         libavformat/Makefile
3110         libavutil/Makefile
3111         libpostproc/Makefile
3112         libswscale/Makefile
3113     "
3114     map 'mkdir -p $v' $DIRS;
3115     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3116 fi
3117
3118 enabled stripping || strip="echo skipping strip"
3119
3120 config_files="$TMPH config.mak"
3121
3122 cat > config.mak <<EOF
3123 # Automatically generated by configure - do not modify!
3124 ifndef FFMPEG_CONFIG_MAK
3125 FFMPEG_CONFIG_MAK=1
3126 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3127 prefix=$prefix
3128 LIBDIR=\$(DESTDIR)$libdir
3129 SHLIBDIR=\$(DESTDIR)$shlibdir
3130 INCDIR=\$(DESTDIR)$incdir
3131 BINDIR=\$(DESTDIR)$bindir
3132 DATADIR=\$(DESTDIR)$datadir
3133 MANDIR=\$(DESTDIR)$mandir
3134 SRC_PATH="$source_path"
3135 SRC_PATH_BARE=$source_path
3136 BUILD_ROOT="$PWD"
3137 CC_IDENT=$cc_ident
3138 ARCH=$arch
3139 CC=$cc
3140 AS=$as
3141 LD=$ld
3142 DEPCC=$dep_cc
3143 YASM=$yasmexe
3144 YASMDEP=$yasmexe
3145 AR=$ar
3146 RANLIB=$ranlib
3147 CP=cp -p
3148 LN_S=$ln_s
3149 STRIP=$strip
3150 CPPFLAGS=$CPPFLAGS
3151 CFLAGS=$CFLAGS
3152 ASFLAGS=$ASFLAGS
3153 CC_O=$CC_O
3154 LDFLAGS=$LDFLAGS
3155 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3156 SHFLAGS=$SHFLAGS
3157 YASMFLAGS=$YASMFLAGS
3158 BUILDSUF=$build_suffix
3159 FULLNAME=$FULLNAME
3160 LIBPREF=$LIBPREF
3161 LIBSUF=$LIBSUF
3162 LIBNAME=$LIBNAME
3163 SLIBPREF=$SLIBPREF
3164 SLIBSUF=$SLIBSUF
3165 EXESUF=$EXESUF
3166 EXTRA_VERSION=$extra_version
3167 DEPFLAGS=$DEPFLAGS
3168 CCDEP=$CCDEP
3169 ASDEP=$ASDEP
3170 CC_DEPFLAGS=$CC_DEPFLAGS
3171 AS_DEPFLAGS=$AS_DEPFLAGS
3172 HOSTCC=$host_cc
3173 HOSTCFLAGS=$host_cflags
3174 HOSTEXESUF=$HOSTEXESUF
3175 HOSTLDFLAGS=$host_ldflags
3176 HOSTLIBS=$host_libs
3177 TARGET_EXEC=$target_exec
3178 TARGET_PATH=$target_path
3179 SDL_LIBS=$sdl_libs
3180 SDL_CFLAGS=$sdl_cflags
3181 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3182 EXTRALIBS=$extralibs
3183 INSTALL=install
3184 LIBTARGET=${LIBTARGET}
3185 SLIBNAME=${SLIBNAME}
3186 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3187 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3188 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3189 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3190 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3191 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3192 SAMPLES=$samples
3193 EOF
3194
3195 get_version(){
3196     name=$1
3197     file=$source_path/$2
3198     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3199     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3200     lcname=$(tolower $name)
3201     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3202     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3203 }
3204
3205 get_version LIBSWSCALE  libswscale/swscale.h
3206 get_version LIBPOSTPROC libpostproc/postprocess.h
3207 get_version LIBAVCODEC  libavcodec/avcodec.h
3208 get_version LIBAVCORE   libavcore/avcore.h
3209 get_version LIBAVDEVICE libavdevice/avdevice.h
3210 get_version LIBAVFORMAT libavformat/avformat.h
3211 get_version LIBAVUTIL   libavutil/avutil.h
3212 get_version LIBAVFILTER libavfilter/avfilter.h
3213
3214 cat > $TMPH <<EOF
3215 /* Automatically generated by configure - do not modify! */
3216 #ifndef FFMPEG_CONFIG_H
3217 #define FFMPEG_CONFIG_H
3218 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3219 #define FFMPEG_LICENSE "$(c_escape $license)"
3220 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3221 #define CC_TYPE "$cc_type"
3222 #define CC_VERSION $cc_version
3223 #define restrict $_restrict
3224 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3225 #define EXTERN_PREFIX "${extern_prefix}"
3226 #define EXTERN_ASM ${extern_prefix}
3227 #define SLIBSUF "$SLIBSUF"
3228 EOF
3229
3230 test -n "$malloc_prefix" &&
3231     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3232
3233 if enabled small || disabled optimizations; then
3234     echo "#undef  av_always_inline"  >> $TMPH
3235     echo "#define av_always_inline"  >> $TMPH
3236 fi
3237
3238 if enabled yasm; then
3239     append config_files $TMPASM
3240     printf '' >$TMPASM
3241 fi
3242
3243 print_config ARCH_   "$config_files" $ARCH_LIST
3244 print_config HAVE_   "$config_files" $HAVE_LIST
3245 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3246                                      $CONFIG_EXTRA      \
3247                                      $DECODER_LIST      \
3248                                      $ENCODER_LIST      \
3249                                      $HWACCEL_LIST      \
3250                                      $PARSER_LIST       \
3251                                      $BSF_LIST          \
3252                                      $DEMUXER_LIST      \
3253                                      $MUXER_LIST        \
3254                                      $FILTER_LIST       \
3255                                      $PROTOCOL_LIST     \
3256                                      $INDEV_LIST        \
3257                                      $OUTDEV_LIST       \
3258
3259 cat >>config.mak <<EOF
3260 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3261 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3262 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3263 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3264 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3265 EOF
3266
3267 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3268 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3269
3270 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3271 cp_if_changed $TMPH config.h
3272 touch .config
3273
3274 enabled yasm && cp_if_changed $TMPASM config.asm
3275
3276 cat > $TMPH <<EOF
3277 /* Generated by ffconf */
3278 #ifndef AVUTIL_AVCONFIG_H
3279 #define AVUTIL_AVCONFIG_H
3280 EOF
3281
3282 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3283
3284 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3285
3286 cp_if_changed $TMPH libavutil/avconfig.h
3287
3288 test -n "$WARNINGS" && printf "\n$WARNINGS"
3289
3290 # build pkg-config files
3291
3292 pkgconfig_generate(){
3293 name=$1
3294 shortname=${name#lib}${build_suffix}
3295 comment=$2
3296 version=$3
3297 libs=$4
3298 requires=$5
3299 enabled ${name#lib} || return 0
3300 cat <<EOF > $name/$name.pc
3301 prefix=$prefix
3302 exec_prefix=\${prefix}
3303 libdir=$libdir
3304 includedir=$incdir
3305
3306 Name: $name
3307 Description: $comment
3308 Version: $version
3309 Requires: $(enabled shared || echo $requires)
3310 Requires.private: $(enabled shared && echo $requires)
3311 Conflicts:
3312 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3313 Libs.private: $(enabled shared && echo $libs)
3314 Cflags: -I\${includedir}
3315 EOF
3316 cat <<EOF > $name/$name-uninstalled.pc
3317 prefix=
3318 exec_prefix=
3319 libdir=\${pcfiledir}
3320 includedir=${source_path}
3321
3322 Name: $name
3323 Description: $comment
3324 Version: $version
3325 Requires: $requires
3326 Conflicts:
3327 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3328 Cflags: -I\${includedir}
3329 EOF
3330 }
3331
3332 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3333 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3334 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3335 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3336 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3337 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3338 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3339 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"