cosmetics: vertical alignment and line wrap
[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 [$arch]
216   --cpu=CPU                select the minimum required CPU (affects
217                            instruction selection, may crash on older CPUs)
218   --disable-asm            disable all assembler optimizations
219   --disable-altivec        disable AltiVec optimizations
220   --disable-amd3dnow       disable 3DNow! optimizations
221   --disable-amd3dnowext    disable 3DNow! extended optimizations
222   --disable-mmx            disable MMX optimizations
223   --disable-mmx2           disable MMX2 optimizations
224   --disable-sse            disable SSE optimizations
225   --disable-ssse3          disable SSSE3 optimizations
226   --disable-armv5te        disable armv5te optimizations
227   --disable-armv6          disable armv6 optimizations
228   --disable-armv6t2        disable armv6t2 optimizations
229   --disable-armvfp         disable ARM VFP optimizations
230   --disable-iwmmxt         disable iwmmxt optimizations
231   --disable-mmi            disable MMI optimizations
232   --disable-neon           disable neon optimizations
233   --disable-vis            disable VIS optimizations
234   --disable-yasm           disable use of yasm assembler
235   --enable-pic             build position-independent code
236   --malloc-prefix=PFX      prefix malloc and related names with PFX
237   --enable-sram            allow use of on-chip SRAM
238   --disable-symver         disable symbol versioning
239
240 Developer options (useful when working on FFmpeg itself):
241   --disable-debug          disable debugging symbols
242   --enable-debug=LEVEL     set the debug level [$debuglevel]
243   --disable-optimizations  disable compiler optimizations
244   --enable-extra-warnings  enable more compiler warnings
245   --disable-stripping      disable stripping of executables and shared libraries
246   --samples=PATH           location of test samples for FATE
247
248 NOTE: Object files are built at the place where configure is launched.
249 EOF
250   exit 0
251 }
252
253 quotes='""'
254
255 log(){
256     echo "$@" >> $logfile
257 }
258
259 log_file(){
260     log BEGIN $1
261     pr -n -t $1 >> $logfile
262     log END $1
263 }
264
265 echolog(){
266     log "$@"
267     echo "$@"
268 }
269
270 warn(){
271     log "WARNING: $*"
272     WARNINGS="${WARNINGS}WARNING: $*\n"
273 }
274
275 die(){
276     echolog "$@"
277     cat <<EOF
278
279 If you think configure made a mistake, make sure you are using the latest
280 version from Git.  If the latest version fails, report the problem to the
281 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
282 EOF
283     if disabled logging; then
284         cat <<EOF
285 Rerun configure with logging enabled (do not use --disable-logging), and
286 include the log this produces with your report.
287 EOF
288     else
289 cat <<EOF
290 Include the log file "$logfile" produced by configure as this will help
291 solving the problem.
292 EOF
293     fi
294     exit 1
295 }
296
297 # Avoid locale weirdness, besides we really just want to translate ASCII.
298 toupper(){
299     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
300 }
301
302 tolower(){
303     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
304 }
305
306 c_escape(){
307     echo "$*" | sed 's/["\\]/\\\0/g'
308 }
309
310 sh_quote(){
311     v=$(echo "$1" | sed "s/'/'\\\\''/g")
312     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
313     echo "$v"
314 }
315
316 filter(){
317     pat=$1
318     shift
319     for v; do
320         eval "case $v in $pat) echo $v ;; esac"
321     done
322 }
323
324 map(){
325     m=$1
326     shift
327     for v; do eval $m; done
328 }
329
330 set_all(){
331     value=$1
332     shift
333     for var in $*; do
334         eval $var=$value
335     done
336 }
337
338 set_weak(){
339     value=$1
340     shift
341     for var; do
342         eval : \${$var:=$value}
343     done
344 }
345
346 pushvar(){
347     for var in $*; do
348         eval level=\${${var}_level:=0}
349         eval ${var}_${level}="\$$var"
350         eval ${var}_level=$(($level+1))
351     done
352 }
353
354 popvar(){
355     for var in $*; do
356         eval level=\${${var}_level:-0}
357         test $level = 0 && continue
358         eval level=$(($level-1))
359         eval $var="\${${var}_${level}}"
360         eval ${var}_level=$level
361         eval unset ${var}_${level}
362     done
363 }
364
365 enable(){
366     set_all yes $*
367 }
368
369 disable(){
370     set_all no $*
371 }
372
373 enable_weak(){
374     set_weak yes $*
375 }
376
377 disable_weak(){
378     set_weak no $*
379 }
380
381 enable_safe(){
382     for var; do
383         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
384     done
385 }
386
387 disable_safe(){
388     for var; do
389         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
390     done
391 }
392
393 do_enable_deep(){
394     for var; do
395         enabled $var && continue
396         eval sel="\$${var}_select"
397         eval sgs="\$${var}_suggest"
398         pushvar var sgs
399         enable_deep $sel
400         popvar sgs
401         enable_deep_weak $sgs
402         popvar var
403     done
404 }
405
406 enable_deep(){
407     do_enable_deep $*
408     enable $*
409 }
410
411 enable_deep_weak(){
412     do_enable_deep $*
413     enable_weak $*
414 }
415
416 enabled(){
417     test "${1#!}" = "$1" && op== || op=!=
418     eval test "x\$${1#!}" $op "xyes"
419 }
420
421 disabled(){
422     test "${1#!}" = "$1" && op== || op=!=
423     eval test "x\$${1#!}" $op "xno"
424 }
425
426 enabled_all(){
427     for opt; do
428         enabled $opt || return 1
429     done
430 }
431
432 disabled_all(){
433     for opt; do
434         disabled $opt || return 1
435     done
436 }
437
438 enabled_any(){
439     for opt; do
440         enabled $opt && return 0
441     done
442 }
443
444 disabled_any(){
445     for opt; do
446         disabled $opt && return 0
447     done
448     return 1
449 }
450
451 set_default(){
452     for opt; do
453         eval : \${$opt:=\$${opt}_default}
454     done
455 }
456
457 is_in(){
458     value=$1
459     shift
460     for var in $*; do
461         [ $var = $value ] && return 0
462     done
463     return 1
464 }
465
466 check_deps(){
467     for cfg; do
468         cfg="${cfg#!}"
469         enabled ${cfg}_checking && die "Circular dependency for $cfg."
470         disabled ${cfg}_checking && continue
471         enable ${cfg}_checking
472
473         eval dep_all="\$${cfg}_deps"
474         eval dep_any="\$${cfg}_deps_any"
475         eval dep_sel="\$${cfg}_select"
476         eval dep_sgs="\$${cfg}_suggest"
477         eval dep_ifa="\$${cfg}_if"
478         eval dep_ifn="\$${cfg}_if_any"
479
480         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
481         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
482         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
483
484         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
485         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
486         enabled_all  $dep_all || disable $cfg
487         enabled_any  $dep_any || disable $cfg
488         disabled_any $dep_sel && disable $cfg
489
490         if enabled $cfg; then
491             eval dep_extralibs="\$${cfg}_extralibs"
492             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
493             enable_deep $dep_sel
494             enable_deep_weak $dep_sgs
495         fi
496
497         disable ${cfg}_checking
498     done
499 }
500
501 print_config_h(){
502     enabled $1 && v=1 || v=0
503     echo "#define $2 $v"
504 }
505
506 print_config_mak(){
507     enabled $1 && v= || v=!
508     echo "$v$2=yes"
509 }
510
511 print_config_asm(){
512     enabled $1 && echo "%define $2"
513 }
514
515 print_config(){
516     pfx=$1
517     files=$2
518     shift 2
519     for cfg; do
520         ucname="$(toupper $cfg)"
521         for f in $files; do
522             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
523         done
524     done
525 }
526
527 print_enabled(){
528     test "$1" = -n && end=" " && shift || end="\n"
529     suf=$1
530     shift
531     for v; do
532         enabled $v && printf "%s$end" ${v%$suf};
533     done
534 }
535
536 append(){
537     var=$1
538     shift
539     eval "$var=\"\$$var $*\""
540 }
541
542 prepend(){
543     var=$1
544     shift
545     eval "$var=\"$* \$$var\""
546 }
547
548 add_cppflags(){
549     append CPPFLAGS $($filter_cppflags "$@")
550 }
551
552 add_cflags(){
553     append CFLAGS $($filter_cflags "$@")
554 }
555
556 add_asflags(){
557     append ASFLAGS $($filter_asflags "$@")
558 }
559
560 add_ldflags(){
561     append LDFLAGS "$@"
562 }
563
564 add_extralibs(){
565     prepend extralibs "$@"
566 }
567
568 check_cmd(){
569     log "$@"
570     "$@" >> $logfile 2>&1
571 }
572
573 check_cc(){
574     log check_cc "$@"
575     cat > $TMPC
576     log_file $TMPC
577     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
578 }
579
580 check_cpp(){
581     log check_cpp "$@"
582     cat > $TMPC
583     log_file $TMPC
584     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
585 }
586
587 check_as(){
588     log check_as "$@"
589     cat > $TMPC
590     log_file $TMPC
591     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
592 }
593
594 check_asm(){
595     log check_asm "$@"
596     name="$1"
597     code="$2"
598     shift 2
599     disable $name
600     check_as "$@" <<EOF && enable $name
601 void foo(void){ __asm__ volatile($code); }
602 EOF
603 }
604
605 check_yasm(){
606     log check_yasm "$@"
607     echo "$1" > $TMPS
608     log_file $TMPS
609     shift 1
610     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
611 }
612
613 check_ld(){
614     log check_ld "$@"
615     flags=''
616     libs=''
617     for f; do
618         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
619     done
620     check_cc $($filter_cflags $flags) || return
621     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
622 }
623
624 check_cppflags(){
625     log check_cppflags "$@"
626     set -- $($filter_cppflags "$@")
627     check_cc "$@" <<EOF && append CPPFLAGS "$@"
628 int x;
629 EOF
630 }
631
632 check_cflags(){
633     log check_cflags "$@"
634     set -- $($filter_cflags "$@")
635     check_cc "$@" <<EOF && append CFLAGS "$@"
636 int x;
637 EOF
638 }
639
640 test_ldflags(){
641     log test_ldflags "$@"
642     check_ld "$@" <<EOF
643 int main(void){ return 0; }
644 EOF
645 }
646
647 check_ldflags(){
648     log check_ldflags "$@"
649     test_ldflags "$@" && add_ldflags "$@"
650 }
651
652 check_header(){
653     log check_header "$@"
654     header=$1
655     shift
656     disable_safe $header
657     check_cpp "$@" <<EOF && enable_safe $header
658 #include <$header>
659 int x;
660 EOF
661 }
662
663 check_func(){
664     log check_func "$@"
665     func=$1
666     shift
667     disable $func
668     check_ld "$@" <<EOF && enable $func
669 extern int $func();
670 int main(void){ $func(); }
671 EOF
672 }
673
674 check_mathfunc(){
675     log check_mathfunc "$@"
676     func=$1
677     shift
678     disable $func
679     check_ld "$@" <<EOF && enable $func
680 #include <math.h>
681 float foo(float f) { return $func(f); }
682 int main(void){ return 0; }
683 EOF
684 }
685
686 check_func_headers(){
687     log check_func_headers "$@"
688     headers=$1
689     func=$2
690     shift 2
691     disable $func
692     incs=""
693     for hdr in $headers; do
694         incs="$incs
695 #include <$hdr>"
696     done
697     check_ld "$@" <<EOF && enable $func && enable_safe $headers
698 $incs
699 int main(int argc, char **argv){
700     return (long) $func;
701 }
702 EOF
703 }
704
705 check_cpp_condition(){
706     log check_cpp_condition "$@"
707     header=$1
708     condition=$2
709     shift 2
710     check_cpp $($filter_cppflags "$@") <<EOF
711 #include <$header>
712 #if !($condition)
713 #error "unsatisfied condition: $condition"
714 #endif
715 EOF
716 }
717
718 check_lib(){
719     log check_lib "$@"
720     header="$1"
721     func="$2"
722     shift 2
723     check_header $header && check_func $func "$@" && add_extralibs "$@"
724 }
725
726 check_lib2(){
727     log check_lib2 "$@"
728     headers="$1"
729     func="$2"
730     shift 2
731     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
732 }
733
734 check_exec(){
735     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
736 }
737
738 check_exec_crash(){
739     code=$(cat)
740
741     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
742     # are safe but may not be available everywhere.  Thus we use
743     # raise(SIGTERM) instead.  The check is run in a subshell so we
744     # can redirect the "Terminated" message from the shell.  SIGBUS
745     # is not defined by standard C so it is used conditionally.
746
747     (check_exec "$@") >> $logfile 2>&1 <<EOF
748 #include <signal.h>
749 static void sighandler(int sig){
750     raise(SIGTERM);
751 }
752 int main(void){
753     signal(SIGILL, sighandler);
754     signal(SIGFPE, sighandler);
755     signal(SIGSEGV, sighandler);
756 #ifdef SIGBUS
757     signal(SIGBUS, sighandler);
758 #endif
759     { $code }
760 }
761 EOF
762 }
763
764 check_type(){
765     log check_type "$@"
766     headers=$1
767     type=$2
768     shift 2
769     disable_safe "$type"
770     incs=""
771     for hdr in $headers; do
772         incs="$incs
773 #include <$hdr>"
774     done
775     check_cc "$@" <<EOF && enable_safe "$type"
776 $incs
777 $type v;
778 EOF
779 }
780
781 check_struct(){
782     log check_type "$@"
783     headers=$1
784     struct=$2
785     member=$3
786     shift 3
787     disable_safe "${struct}_${member}"
788     incs=""
789     for hdr in $headers; do
790         incs="$incs
791 #include <$hdr>"
792     done
793     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
794 $incs
795 const void *p = &(($struct *)0)->$member;
796 EOF
797 }
798
799 require(){
800     name="$1"
801     header="$2"
802     func="$3"
803     shift 3
804     check_lib $header $func "$@" || die "ERROR: $name not found"
805 }
806
807 require2(){
808     name="$1"
809     headers="$2"
810     func="$3"
811     shift 3
812     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
813 }
814
815 check_host_cc(){
816     log check_host_cc "$@"
817     cat > $TMPC
818     log_file $TMPC
819     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
820 }
821
822 check_host_cflags(){
823     log check_host_cflags "$@"
824     check_host_cc "$@" <<EOF && append host_cflags "$@"
825 int x;
826 EOF
827 }
828
829 apply(){
830     file=$1
831     shift
832     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
833 }
834
835 cp_if_changed(){
836     cmp -s "$1" "$2" &&
837         echo "$2 is unchanged" ||
838         cp -f "$1" "$2"
839 }
840
841 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
842 # system-dependent things.
843
844 COMPONENT_LIST="
845     bsfs
846     decoders
847     demuxers
848     encoders
849     filters
850     hwaccels
851     indevs
852     muxers
853     outdevs
854     parsers
855     protocols
856 "
857
858 CONFIG_LIST="
859     $COMPONENT_LIST
860     aandct
861     avcodec
862     avcore
863     avdevice
864     avfilter
865     avformat
866     avisynth
867     bzlib
868     dct
869     doc
870     dwt
871     dxva2
872     fastdiv
873     ffmpeg
874     ffplay
875     ffprobe
876     ffserver
877     fft
878     frei0r
879     golomb
880     gpl
881     gray
882     h264dsp
883     h264pred
884     hardcoded_tables
885     huffman
886     libdc1394
887     libdirac
888     libfaac
889     libgsm
890     libmp3lame
891     libnut
892     libopencore_amrnb
893     libopencore_amrwb
894     libopencv
895     libopenjpeg
896     librtmp
897     libschroedinger
898     libspeex
899     libtheora
900     libvorbis
901     libvpx
902     libx264
903     libxavs
904     libxvid
905     lpc
906     lsp
907     mdct
908     memalign_hack
909     mlib
910     mpegaudio_hp
911     network
912     nonfree
913     pic
914     postproc
915     rdft
916     rtpdec
917     runtime_cpudetect
918     shared
919     small
920     sram
921     static
922     swscale
923     swscale_alpha
924     vaapi
925     vdpau
926     version3
927     x11grab
928     zlib
929 "
930
931 THREADS_LIST='
932     pthreads
933     w32threads
934 '
935
936 ARCH_LIST='
937     alpha
938     arm
939     avr32
940     avr32_ap
941     avr32_uc
942     bfin
943     ia64
944     m68k
945     mips
946     mips64
947     parisc
948     ppc
949     ppc64
950     s390
951     sh4
952     sparc
953     sparc64
954     tomi
955     x86
956     x86_32
957     x86_64
958 '
959
960 ARCH_EXT_LIST='
961     altivec
962     amd3dnow
963     amd3dnowext
964     armv5te
965     armv6
966     armv6t2
967     armvfp
968     iwmmxt
969     mmi
970     mmx
971     mmx2
972     neon
973     ppc4xx
974     sse
975     ssse3
976     vis
977 '
978
979 HAVE_LIST_PUB='
980     bigendian
981     fast_unaligned
982 '
983
984 HAVE_LIST="
985     $ARCH_EXT_LIST
986     $HAVE_LIST_PUB
987     $THREADS_LIST
988     aligned_stack
989     alsa_asoundlib_h
990     altivec_h
991     arpa_inet_h
992     attribute_may_alias
993     attribute_packed
994     bswap
995     closesocket
996     cmov
997     conio_h
998     dcbzl
999     dev_bktr_ioctl_bt848_h
1000     dev_bktr_ioctl_meteor_h
1001     dev_ic_bt8xx_h
1002     dev_video_meteor_ioctl_meteor_h
1003     dev_video_bktr_ioctl_bt848_h
1004     dlfcn_h
1005     dlopen
1006     dos_paths
1007     ebp_available
1008     ebx_available
1009     exp2
1010     exp2f
1011     fast_64bit
1012     fast_clz
1013     fast_cmov
1014     fcntl
1015     fork
1016     getaddrinfo
1017     gethrtime
1018     GetProcessMemoryInfo
1019     GetProcessTimes
1020     getrusage
1021     gnu_as
1022     struct_rusage_ru_maxrss
1023     ibm_asm
1024     inet_aton
1025     inline_asm
1026     isatty
1027     ldbrx
1028     libdc1394_1
1029     libdc1394_2
1030     llrint
1031     llrintf
1032     local_aligned_16
1033     local_aligned_8
1034     log2
1035     log2f
1036     loongson
1037     lrint
1038     lrintf
1039     lzo1x_999_compress
1040     machine_ioctl_bt848_h
1041     machine_ioctl_meteor_h
1042     malloc_h
1043     MapViewOfFile
1044     memalign
1045     mkstemp
1046     mmap
1047     pld
1048     posix_memalign
1049     round
1050     roundf
1051     sdl
1052     sdl_video_size
1053     setmode
1054     socklen_t
1055     soundcard_h
1056     poll_h
1057     setrlimit
1058     strerror_r
1059     strtok_r
1060     struct_addrinfo
1061     struct_ipv6_mreq
1062     struct_sockaddr_in6
1063     struct_sockaddr_sa_len
1064     struct_sockaddr_storage
1065     symver
1066     symver_gnu_asm
1067     symver_asm_label
1068     sys_mman_h
1069     sys_resource_h
1070     sys_select_h
1071     sys_soundcard_h
1072     sys_videoio_h
1073     ten_operands
1074     termios_h
1075     threads
1076     truncf
1077     vfp_args
1078     VirtualAlloc
1079     winsock2_h
1080     xform_asm
1081     xmm_clobbers
1082     yasm
1083 "
1084
1085 # options emitted with CONFIG_ prefix but not available on command line
1086 CONFIG_EXTRA="
1087     avutil
1088     gplv3
1089     lgplv3
1090 "
1091
1092 CMDLINE_SELECT="
1093     $ARCH_EXT_LIST
1094     $CONFIG_LIST
1095     $THREADS_LIST
1096     asm
1097     cross_compile
1098     debug
1099     extra_warnings
1100     logging
1101     optimizations
1102     stripping
1103     symver
1104     yasm
1105 "
1106
1107 PATHS_LIST='
1108     bindir
1109     datadir
1110     incdir
1111     libdir
1112     mandir
1113     prefix
1114     shlibdir
1115 '
1116
1117 CMDLINE_SET="
1118     $PATHS_LIST
1119     ar
1120     arch
1121     as
1122     build_suffix
1123     cc
1124     cpu
1125     cross_prefix
1126     dep_cc
1127     extra_version
1128     host_cc
1129     host_cflags
1130     host_ldflags
1131     host_libs
1132     host_os
1133     ld
1134     logfile
1135     malloc_prefix
1136     nm
1137     samples
1138     source_path
1139     strip
1140     sysinclude
1141     sysroot
1142     target_exec
1143     target_os
1144     target_path
1145 "
1146
1147 CMDLINE_APPEND="
1148     extra_cflags
1149 "
1150
1151 # code dependency declarations
1152
1153 # architecture extensions
1154
1155 armv5te_deps="arm"
1156 armv6_deps="arm"
1157 armv6t2_deps="arm"
1158 armvfp_deps="arm"
1159 iwmmxt_deps="arm"
1160 neon_deps="arm"
1161
1162 mmi_deps="mips"
1163
1164 altivec_deps="ppc"
1165 ppc4xx_deps="ppc"
1166
1167 vis_deps="sparc"
1168
1169 x86_64_suggest="cmov fast_cmov"
1170 amd3dnow_deps="mmx"
1171 amd3dnowext_deps="amd3dnow"
1172 mmx_deps="x86"
1173 mmx2_deps="mmx"
1174 sse_deps="mmx"
1175 ssse3_deps="sse"
1176
1177 aligned_stack_if_any="ppc x86"
1178 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1179 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1180 fast_unaligned_if_any="armv6 ppc x86"
1181
1182 need_memalign="altivec neon sse"
1183 inline_asm_deps="!tms470"
1184
1185 symver_if_any="symver_asm_label symver_gnu_asm"
1186
1187 # subsystems
1188 dct_select="rdft"
1189 mdct_select="fft"
1190 rdft_select="fft"
1191
1192 # decoders / encoders / hardware accelerators
1193 aac_decoder_select="mdct rdft"
1194 aac_encoder_select="mdct"
1195 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1196 ac3_decoder_select="mdct ac3_parser"
1197 ac3_encoder_select="mdct"
1198 alac_encoder_select="lpc"
1199 amrnb_decoder_select="lsp"
1200 amrwb_decoder_select="lsp"
1201 atrac1_decoder_select="mdct"
1202 atrac3_decoder_select="mdct"
1203 binkaudio_dct_decoder_select="mdct rdft dct"
1204 binkaudio_rdft_decoder_select="mdct rdft"
1205 cavs_decoder_select="golomb"
1206 cook_decoder_select="mdct"
1207 cscd_decoder_suggest="zlib"
1208 dca_decoder_select="mdct"
1209 dnxhd_encoder_select="aandct"
1210 dxa_decoder_select="zlib"
1211 eac3_decoder_select="ac3_decoder"
1212 eamad_decoder_select="aandct"
1213 eatgq_decoder_select="aandct"
1214 eatqi_decoder_select="aandct"
1215 ffv1_decoder_select="golomb"
1216 flac_decoder_select="golomb"
1217 flac_encoder_select="golomb lpc"
1218 flashsv_decoder_select="zlib"
1219 flashsv_encoder_select="zlib"
1220 flv_decoder_select="h263_decoder"
1221 flv_encoder_select="h263_encoder"
1222 fraps_decoder_select="huffman"
1223 h261_encoder_select="aandct"
1224 h263_decoder_select="h263_parser"
1225 h263_encoder_select="aandct"
1226 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1227 h263i_decoder_select="h263_decoder"
1228 h263p_encoder_select="h263_encoder"
1229 h264_decoder_select="golomb h264dsp h264pred"
1230 h264_dxva2_hwaccel_deps="dxva2api_h"
1231 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1232 h264_vaapi_hwaccel_select="vaapi"
1233 h264_vdpau_decoder_select="vdpau h264_decoder"
1234 imc_decoder_select="fft mdct"
1235 jpegls_decoder_select="golomb"
1236 jpegls_encoder_select="golomb"
1237 ljpeg_encoder_select="aandct"
1238 loco_decoder_select="golomb"
1239 mjpeg_encoder_select="aandct"
1240 mlp_decoder_select="mlp_parser"
1241 mp1float_decoder_select="dct"
1242 mp2float_decoder_select="dct"
1243 mp3adufloat_decoder_select="dct"
1244 mp3float_decoder_select="dct"
1245 mp3on4float_decoder_select="dct"
1246 mpeg1video_encoder_select="aandct"
1247 mpeg2video_encoder_select="aandct"
1248 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1249 mpeg4_encoder_select="h263_encoder"
1250 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1251 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1252 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1253 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1254 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1255 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1256 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1257 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1258 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1259 msmpeg4v1_decoder_select="h263_decoder"
1260 msmpeg4v1_encoder_select="h263_encoder"
1261 msmpeg4v2_decoder_select="h263_decoder"
1262 msmpeg4v2_encoder_select="h263_encoder"
1263 msmpeg4v3_decoder_select="h263_decoder"
1264 msmpeg4v3_encoder_select="h263_encoder"
1265 nellymoser_decoder_select="mdct"
1266 nellymoser_encoder_select="mdct"
1267 png_decoder_select="zlib"
1268 png_encoder_select="zlib"
1269 qcelp_decoder_select="lsp"
1270 qdm2_decoder_select="mdct rdft"
1271 ra_144_encoder_select="lpc"
1272 rv10_decoder_select="h263_decoder"
1273 rv10_encoder_select="h263_encoder"
1274 rv20_decoder_select="h263_decoder"
1275 rv20_encoder_select="h263_encoder"
1276 rv30_decoder_select="golomb h264pred"
1277 rv40_decoder_select="golomb h264pred"
1278 shorten_decoder_select="golomb"
1279 sipr_decoder_select="lsp"
1280 snow_decoder_select="dwt"
1281 snow_encoder_select="aandct dwt"
1282 sonic_decoder_select="golomb"
1283 sonic_encoder_select="golomb"
1284 sonic_ls_encoder_select="golomb"
1285 svq1_encoder_select="aandct"
1286 svq3_decoder_select="golomb h264dsp h264pred"
1287 svq3_decoder_suggest="zlib"
1288 theora_decoder_select="vp3_decoder"
1289 tiff_decoder_suggest="zlib"
1290 tiff_encoder_suggest="zlib"
1291 truehd_decoder_select="mlp_decoder"
1292 tscc_decoder_select="zlib"
1293 twinvq_decoder_select="mdct lsp"
1294 vc1_decoder_select="h263_decoder"
1295 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1296 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1297 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1298 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1299 vorbis_decoder_select="mdct"
1300 vorbis_encoder_select="mdct"
1301 vp6_decoder_select="huffman"
1302 vp6a_decoder_select="vp6_decoder"
1303 vp6f_decoder_select="vp6_decoder"
1304 vp8_decoder_select="h264pred"
1305 wmapro_decoder_select="mdct"
1306 wmav1_decoder_select="mdct"
1307 wmav1_encoder_select="mdct"
1308 wmav2_decoder_select="mdct"
1309 wmav2_encoder_select="mdct"
1310 wmavoice_decoder_select="lsp rdft dct mdct"
1311 wmv1_decoder_select="h263_decoder"
1312 wmv1_encoder_select="h263_encoder"
1313 wmv2_decoder_select="h263_decoder"
1314 wmv2_encoder_select="h263_encoder"
1315 wmv3_decoder_select="vc1_decoder"
1316 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1317 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1318 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1319 zlib_decoder_select="zlib"
1320 zlib_encoder_select="zlib"
1321 zmbv_decoder_select="zlib"
1322 zmbv_encoder_select="zlib"
1323
1324 vaapi_deps="va_va_h"
1325 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1326
1327 # parsers
1328 h264_parser_select="golomb h264dsp h264pred"
1329
1330 # external libraries
1331 libdirac_decoder_deps="libdirac !libschroedinger"
1332 libdirac_encoder_deps="libdirac"
1333 libfaac_encoder_deps="libfaac"
1334 libgsm_decoder_deps="libgsm"
1335 libgsm_encoder_deps="libgsm"
1336 libgsm_ms_decoder_deps="libgsm"
1337 libgsm_ms_encoder_deps="libgsm"
1338 libmp3lame_encoder_deps="libmp3lame"
1339 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1340 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1341 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1342 libopenjpeg_decoder_deps="libopenjpeg"
1343 libschroedinger_decoder_deps="libschroedinger"
1344 libschroedinger_encoder_deps="libschroedinger"
1345 libspeex_decoder_deps="libspeex"
1346 libtheora_encoder_deps="libtheora"
1347 libvorbis_encoder_deps="libvorbis"
1348 libvpx_decoder_deps="libvpx"
1349 libvpx_encoder_deps="libvpx"
1350 libx264_encoder_deps="libx264"
1351 libxavs_encoder_deps="libxavs"
1352 libxvid_encoder_deps="libxvid"
1353
1354 # demuxers / muxers
1355 ac3_demuxer_deps="ac3_parser"
1356 asf_stream_muxer_select="asf_muxer"
1357 avisynth_demuxer_deps="avisynth"
1358 dirac_demuxer_deps="dirac_parser"
1359 eac3_demuxer_select="ac3_parser"
1360 flac_demuxer_deps="flac_parser"
1361 ipod_muxer_select="mov_muxer"
1362 libnut_demuxer_deps="libnut"
1363 libnut_muxer_deps="libnut"
1364 matroska_audio_muxer_select="matroska_muxer"
1365 matroska_demuxer_suggest="zlib bzlib"
1366 mov_demuxer_suggest="zlib"
1367 mp3_demuxer_deps="mpegaudio_parser"
1368 mp4_muxer_select="mov_muxer"
1369 mpegtsraw_demuxer_select="mpegts_demuxer"
1370 mxf_d10_muxer_select="mxf_muxer"
1371 ogg_demuxer_select="golomb"
1372 psp_muxer_select="mov_muxer"
1373 rtp_demuxer_select="sdp_demuxer"
1374 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1375 rtsp_demuxer_select="http_protocol rtpdec"
1376 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1377 sap_demuxer_select="sdp_demuxer"
1378 sap_muxer_select="rtp_muxer rtp_protocol"
1379 sdp_demuxer_select="rtpdec"
1380 spdif_muxer_select="aac_parser"
1381 tg2_muxer_select="mov_muxer"
1382 tgp_muxer_select="mov_muxer"
1383 w64_demuxer_deps="wav_demuxer"
1384
1385 # indevs / outdevs
1386 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1387 alsa_outdev_deps="alsa_asoundlib_h"
1388 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1389 dv1394_indev_deps="dv1394 dv_demuxer"
1390 jack_indev_deps="jack_jack_h"
1391 libdc1394_indev_deps="libdc1394"
1392 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1393 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1394 v4l_indev_deps="linux_videodev_h"
1395 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1396 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1397 vfwcap_indev_extralibs="-lavicap32"
1398 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1399 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1400
1401 # protocols
1402 gopher_protocol_deps="network"
1403 http_protocol_deps="network"
1404 http_protocol_select="tcp_protocol"
1405 mmsh_protocol_select="http_protocol"
1406 mmst_protocol_deps="network"
1407 rtmp_protocol_select="tcp_protocol"
1408 rtp_protocol_select="udp_protocol"
1409 tcp_protocol_deps="network"
1410 udp_protocol_deps="network"
1411
1412 # filters
1413 blackframe_filter_deps="gpl"
1414 cropdetect_filter_deps="gpl"
1415 frei0r_filter_deps="frei0r dlopen strtok_r"
1416 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1417 hqdn3d_filter_deps="gpl"
1418 scale_filter_deps="swscale"
1419 ocv_filter_deps="libopencv"
1420 yadif_filter_deps="gpl"
1421
1422 # libraries
1423 avdevice_deps="avcodec avformat"
1424 avformat_deps="avcodec"
1425
1426 # programs
1427 ffmpeg_deps="avcodec avformat swscale"
1428 ffmpeg_select="buffer_filter"
1429 ffplay_deps="avcodec avformat swscale sdl"
1430 ffplay_select="rdft"
1431 ffprobe_deps="avcodec avformat"
1432 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1433 ffserver_extralibs='$ldl'
1434
1435 doc_deps="texi2html"
1436
1437 # tests
1438
1439 test_deps(){
1440     suf1=$1
1441     suf2=$2
1442     shift 2
1443     for v; do
1444         dep=${v%=*}
1445         tests=${v#*=}
1446         for name in ${tests}; do
1447             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1448         done
1449     done
1450 }
1451
1452 set_ne_test_deps(){
1453     eval ${1}_be_test_deps="bigendian"
1454     eval ${1}_le_test_deps="!bigendian"
1455 }
1456
1457 test_deps _encoder _decoder                                             \
1458     adpcm_g726=g726                                                     \
1459     adpcm_ima_qt                                                        \
1460     adpcm_ima_wav                                                       \
1461     adpcm_ms                                                            \
1462     adpcm_swf                                                           \
1463     adpcm_yamaha=adpcm_yam                                              \
1464     alac                                                                \
1465     asv1                                                                \
1466     asv2                                                                \
1467     bmp                                                                 \
1468     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1469     dvvideo="dv dv50"                                                   \
1470     ffv1                                                                \
1471     flac                                                                \
1472     flashsv                                                             \
1473     flv                                                                 \
1474     gif                                                                 \
1475     h261                                                                \
1476     h263="h263 h263p"                                                   \
1477     huffyuv                                                             \
1478     jpegls                                                              \
1479     mjpeg="jpg mjpeg ljpeg"                                             \
1480     mp2                                                                 \
1481     mpeg1video="mpeg mpeg1b"                                            \
1482     mpeg2video="mpeg2 mpeg2thread"                                      \
1483     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1484     msmpeg4v3=msmpeg4                                                   \
1485     msmpeg4v2                                                           \
1486     pbm=pbmpipe                                                         \
1487     pcx                                                                 \
1488     pgm="pgm pgmpipe"                                                   \
1489     png                                                                 \
1490     ppm="ppm ppmpipe"                                                   \
1491     rawvideo="rgb yuv"                                                  \
1492     roq                                                                 \
1493     rv10                                                                \
1494     rv20                                                                \
1495     sgi                                                                 \
1496     snow="snow snowll"                                                  \
1497     svq1                                                                \
1498     targa=tga                                                           \
1499     tiff                                                                \
1500     wmav1                                                               \
1501     wmav2                                                               \
1502     wmv1                                                                \
1503     wmv2                                                                \
1504
1505 test_deps _muxer _demuxer                                               \
1506     aiff                                                                \
1507     pcm_alaw=alaw                                                       \
1508     asf                                                                 \
1509     au                                                                  \
1510     avi                                                                 \
1511     dv=dv_fmt                                                           \
1512     ffm                                                                 \
1513     flv=flv_fmt                                                         \
1514     gxf                                                                 \
1515     matroska=mkv                                                        \
1516     mmf                                                                 \
1517     mov                                                                 \
1518     pcm_mulaw=mulaw                                                     \
1519     mxf                                                                 \
1520     nut                                                                 \
1521     ogg                                                                 \
1522     rawvideo=pixfmt                                                     \
1523     rm                                                                  \
1524     swf                                                                 \
1525     mpegts=ts                                                           \
1526     voc                                                                 \
1527     wav                                                                 \
1528     yuv4mpegpipe=yuv4mpeg                                               \
1529
1530 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1531 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1532
1533 set_ne_test_deps pixdesc
1534 set_ne_test_deps pixfmts_copy
1535 set_ne_test_deps pixfmts_crop
1536 set_ne_test_deps pixfmts_hflip
1537 set_ne_test_deps pixfmts_null
1538 set_ne_test_deps pixfmts_pad
1539 set_ne_test_deps pixfmts_scale
1540 set_ne_test_deps pixfmts_vflip
1541
1542 # default parameters
1543
1544 logfile="config.log"
1545
1546 # installation paths
1547 prefix_default="/usr/local"
1548 bindir_default='${prefix}/bin'
1549 datadir_default='${prefix}/share/ffmpeg'
1550 incdir_default='${prefix}/include'
1551 libdir_default='${prefix}/lib'
1552 mandir_default='${prefix}/share/man'
1553 shlibdir_default="$libdir_default"
1554
1555 # toolchain
1556 ar_default="ar"
1557 cc_default="gcc"
1558 cc_version=\"unknown\"
1559 host_cc_default="gcc"
1560 ln_s="ln -sf"
1561 nm_default="nm"
1562 objformat="elf"
1563 ranlib="ranlib"
1564 strip_default="strip"
1565 yasmexe="yasm"
1566 nogas=":"
1567
1568 nm_opts='-g'
1569
1570 # machine
1571 arch_default=$(uname -m)
1572 cpu="generic"
1573
1574 # OS
1575 target_os_default=$(tolower $(uname -s))
1576 host_os=$target_os_default
1577
1578 # configurable options
1579 enable avcodec
1580 enable avcore
1581 enable avdevice
1582 enable avfilter
1583 enable avformat
1584 enable avutil
1585 enable asm
1586 enable debug
1587 enable doc
1588 enable fastdiv
1589 enable ffmpeg
1590 enable ffplay
1591 enable ffprobe
1592 enable ffserver
1593 enable mpegaudio_hp
1594 enable network
1595 enable optimizations
1596 enable protocols
1597 enable static
1598 enable stripping
1599 enable swscale
1600 enable swscale_alpha
1601
1602 # build settings
1603 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1604 FFSERVERLDFLAGS=-Wl,-E
1605 LIBPREF="lib"
1606 LIBSUF=".a"
1607 FULLNAME='$(NAME)$(BUILDSUF)'
1608 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1609 SLIBPREF="lib"
1610 SLIBSUF=".so"
1611 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1612 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1613 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1614 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1615
1616 CC_O='-o $@'
1617
1618 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1619 host_libs='-lm'
1620
1621 target_path='$(CURDIR)'
1622
1623 # since the object filename is not given with the -MM flag, the compiler
1624 # is only able to print the basename, and we must add the path ourselves
1625 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1626 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1627
1628 # find source path
1629 source_path="$(dirname "$0")"
1630 enable source_path_used
1631 if test -f configure; then
1632     source_path="$(pwd)"
1633     disable source_path_used
1634 else
1635     source_path="$(cd "$source_path"; pwd)"
1636     echo "$source_path" | grep -q '[[:blank:]]' &&
1637         die "Out of tree builds are impossible with whitespace in source path."
1638     test -e "$source_path/config.h" &&
1639         die "Out of tree builds are impossible with config.h in source dir."
1640 fi
1641
1642 for v in "$@"; do
1643     r=${v#*=}
1644     l=${v%"$r"}
1645     r=$(sh_quote "$r")
1646     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1647 done
1648
1649 find_things(){
1650     thing=$1
1651     pattern=$2
1652     file=$source_path/$3
1653     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1654 }
1655
1656 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1657 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1658 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1659 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1660 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1661 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1662 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1663 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1664 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1665 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1666 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1667
1668 find_tests(){
1669     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1670 }
1671
1672 ACODEC_TESTS=$(find_tests acodec)
1673 VCODEC_TESTS=$(find_tests vsynth1)
1674 LAVF_TESTS=$(find_tests lavf)
1675 LAVFI_TESTS=$(find_tests lavfi)
1676 SEEK_TESTS=$(find_tests seek seek_)
1677
1678 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1679
1680 for n in $COMPONENT_LIST; do
1681     v=$(toupper ${n%s})_LIST
1682     eval enable \$$v
1683     eval ${n}_if_any="\$$v"
1684 done
1685
1686 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1687
1688 die_unknown(){
1689     echo "Unknown option \"$1\"."
1690     echo "See $0 --help for available options."
1691     exit 1
1692 }
1693
1694 show_list() {
1695     suffix=_$1
1696     shift
1697     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1698     exit 0
1699 }
1700
1701 for opt do
1702     optval="${opt#*=}"
1703     case "$opt" in
1704     --extra-ldflags=*) add_ldflags $optval
1705     ;;
1706     --extra-libs=*) add_extralibs $optval
1707     ;;
1708     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1709     ;;
1710     --enable-debug=*) debuglevel="$optval"
1711     ;;
1712     --disable-everything)
1713     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1714     ;;
1715     --enable-*=*|--disable-*=*)
1716     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1717     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1718     eval list=\$$(toupper $thing)_LIST
1719     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1720     $action $(filter "$name" $list)
1721     ;;
1722     --enable-?*|--disable-?*)
1723     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1724     if is_in $option $COMPONENT_LIST; then
1725         test $action = disable && action=unset
1726         eval $action \$$(toupper ${option%s})_LIST
1727     elif is_in $option $CMDLINE_SELECT; then
1728         $action $option
1729     else
1730         die_unknown $opt
1731     fi
1732     ;;
1733     --list-*)
1734         NAME="${opt#--list-}"
1735         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1736         NAME=${NAME%s}
1737         eval show_list $NAME \$$(toupper $NAME)_LIST
1738     ;;
1739     --help|-h) show_help
1740     ;;
1741     *)
1742     optname="${opt%%=*}"
1743     optname="${optname#--}"
1744     optname=$(echo "$optname" | sed 's/-/_/g')
1745     if is_in $optname $CMDLINE_SET; then
1746         eval $optname='$optval'
1747     elif is_in $optname $CMDLINE_APPEND; then
1748         append $optname "$optval"
1749     else
1750          die_unknown $opt
1751     fi
1752     ;;
1753     esac
1754 done
1755
1756 disabled logging && logfile=/dev/null
1757
1758 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1759 set >> $logfile
1760
1761 test -n "$cross_prefix" && enable cross_compile
1762
1763 if enabled cross_compile; then
1764     test -n "$arch" && test -n "$target_os" ||
1765         die "Must specify target arch and OS when cross-compiling"
1766 fi
1767
1768 set_default arch target_os
1769
1770 ar_default="${cross_prefix}${ar_default}"
1771 cc_default="${cross_prefix}${cc_default}"
1772 nm_default="${cross_prefix}${nm_default}"
1773 ranlib="${cross_prefix}${ranlib}"
1774 strip_default="${cross_prefix}${strip_default}"
1775
1776 sysinclude_default="${sysroot}/usr/include"
1777
1778 set_default cc nm strip sysinclude
1779 enabled cross_compile || host_cc_default=$cc
1780 set_default host_cc
1781
1782 exesuf() {
1783     case $1 in
1784         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1785     esac
1786 }
1787
1788 EXESUF=$(exesuf $target_os)
1789 HOSTEXESUF=$(exesuf $host_os)
1790
1791 # set temporary file name
1792 : ${TMPDIR:=$TEMPDIR}
1793 : ${TMPDIR:=$TMP}
1794 : ${TMPDIR:=/tmp}
1795
1796 if ! check_cmd mktemp -u; then
1797     # simple replacement for missing mktemp
1798     # NOT SAFE FOR GENERAL USE
1799     mktemp(){
1800         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1801     }
1802 fi
1803
1804 tmpfile(){
1805     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1806         (set -C; exec > $tmp) 2>/dev/null ||
1807         die "Unable to create temporary file in $TMPDIR."
1808     append TMPFILES $tmp
1809     eval $1=$tmp
1810 }
1811
1812 trap 'rm -f -- $TMPFILES' EXIT
1813 trap exit HUP INT TERM
1814
1815 tmpfile TMPC  .c
1816 tmpfile TMPE  $EXESUF
1817 tmpfile TMPH  .h
1818 tmpfile TMPO  .o
1819 tmpfile TMPS  .S
1820 tmpfile TMPV  .ver
1821 tmpfile TMPSH .sh
1822 tmpfile TMPASM .asm
1823
1824 unset -f mktemp
1825
1826 chmod +x $TMPE
1827
1828 # make sure we can execute files in $TMPDIR
1829 cat > $TMPSH 2>> $logfile <<EOF
1830 #! /bin/sh
1831 EOF
1832 chmod +x $TMPSH >> $logfile 2>&1
1833 if ! $TMPSH >> $logfile 2>&1; then
1834     cat <<EOF
1835 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1836 variable to another directory and make sure that it is not mounted noexec.
1837 EOF
1838     die "Sanity test failed."
1839 fi
1840
1841 filter_cflags=echo
1842 filter_cppflags=echo
1843 filter_asflags=echo
1844
1845 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1846     cc_type=llvm_gcc
1847     cc_version=__VERSION__
1848     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1849     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1850     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1851     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1852     speed_cflags='-O3'
1853     size_cflags='-Os'
1854 elif $cc -v 2>&1 | grep -qi ^gcc; then
1855     cc_type=gcc
1856     cc_version=__VERSION__
1857     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1858     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1859     if ! $cc -dumpversion | grep -q '^2\.'; then
1860         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1861         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1862     fi
1863     speed_cflags='-O3'
1864     size_cflags='-Os'
1865 elif $cc --version 2>/dev/null | grep -q Intel; then
1866     cc_type=icc
1867     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1868     cc_ident=$($cc --version | head -n1)
1869     icc_version=$($cc -dumpversion)
1870     CC_DEPFLAGS='-MMD'
1871     AS_DEPFLAGS='-MMD'
1872     speed_cflags='-O3'
1873     size_cflags='-Os'
1874     noopt_cflags='-O1'
1875 elif $cc -v 2>&1 | grep -q xlc; then
1876     cc_type=xlc
1877     cc_version="AV_STRINGIFY(__IBMC__)"
1878     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1879     speed_cflags='-O5'
1880     size_cflags='-O5 -qcompact'
1881 elif $cc -V 2>/dev/null | grep -q Compaq; then
1882     cc_type=ccc
1883     cc_version="AV_STRINGIFY(__DECC_VER)"
1884     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1885     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1886     debuglevel=3
1887     add_ldflags -Wl,-z,now # calls to libots crash without this
1888     speed_cflags='-fast'
1889     size_cflags='-O1'
1890 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1891     test -d "$sysroot" || die "No valid sysroot specified."
1892     cc_type=armcc
1893     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1894     cc_ident=$($cc --vsn | head -n1)
1895     armcc_conf="$PWD/armcc.conf"
1896     $cc --arm_linux_configure                 \
1897         --arm_linux_config_file="$armcc_conf" \
1898         --configure_sysroot="$sysroot"        \
1899         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1900         die "Error creating armcc configuration file."
1901     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1902     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1903     as_default="${cross_prefix}gcc"
1904     CC_DEPFLAGS='-MMD'
1905     AS_DEPFLAGS='-MMD'
1906     speed_cflags='-O3'
1907     size_cflags='-Os'
1908 elif $cc -version 2>/dev/null | grep -q TMS470; then
1909     cc_type=tms470
1910     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1911     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1912     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1913     CC_O='-fr=$(@D)'
1914     as_default="${cross_prefix}gcc"
1915     ld_default="${cross_prefix}gcc"
1916     TMPO=$(basename $TMPC .c).o
1917     append TMPFILES $TMPO
1918     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1919     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1920     AS_DEPFLAGS='-MMD'
1921     speed_cflags='-O3 -mf=5'
1922     size_cflags='-O3 -mf=2'
1923     filter_cflags=tms470_flags
1924     tms470_flags(){
1925         for flag; do
1926             case $flag in
1927                 -march=*|-mcpu=*)
1928                     case "${flag#*=}" in
1929                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1930                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1931                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1932                         armv6*|arm11*)          echo -mv=6   ;;
1933                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1934                                                 echo -mv=5e  ;;
1935                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1936                     esac
1937                     ;;
1938                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1939                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1940                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1941                 -msoft-float)   echo --float_support=vfplib       ;;
1942                 -O[0-3]|-mf=*)  echo $flag                        ;;
1943                 -g)             echo -g -mn                       ;;
1944                 -pds=*)         echo $flag                        ;;
1945             esac
1946         done
1947     }
1948 elif $cc -v 2>&1 | grep -q clang; then
1949     cc_type=clang
1950     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1951         cc_version=__clang_version__ || cc_version=__VERSION__
1952     cc_ident=$($cc --version | head -n1)
1953     CC_DEPFLAGS='-MMD'
1954     AS_DEPFLAGS='-MMD'
1955     speed_cflags='-O3'
1956     size_cflags='-Os'
1957 elif $cc -V 2>&1 | grep -q Sun; then
1958     cc_type=suncc
1959     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1960     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1961     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1962     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1963     speed_cflags='-O5'
1964     size_cflags='-O5 -xspace'
1965     filter_cflags=suncc_flags
1966     suncc_flags(){
1967         for flag; do
1968             case $flag in
1969                 -march=*|-mcpu=*)
1970                     case "${flag#*=}" in
1971                         native)                   echo -xtarget=native       ;;
1972                         v9|niagara)               echo -xarch=sparc          ;;
1973                         ultrasparc)               echo -xarch=sparcvis       ;;
1974                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1975                         i586|pentium)             echo -xchip=pentium        ;;
1976                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1977                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1978                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1979                         pentium4*)          echo -xtarget=pentium4           ;;
1980                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1981                         *-sse3)             echo -xarch=sse3                 ;;
1982                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1983                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1984                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1985                         k8|opteron|athlon64|athlon-fx)
1986                                                   echo -xarch=sse2a          ;;
1987                         athlon*)                  echo -xarch=pentium_proa   ;;
1988                     esac
1989                     ;;
1990                 -std=c99)             echo -xc99              ;;
1991                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1992                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1993                 -W*,*)                echo $flag              ;;
1994                 -f*-*|-W*)                                    ;;
1995                 *)                    echo $flag              ;;
1996             esac
1997         done
1998     }
1999 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2000     cc_type=pathscale
2001     cc_version=__PATHSCALE__
2002     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2003     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2004     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2005     speed_cflags='-O2'
2006     size_cflags='-Os'
2007 elif $cc -v 2>&1 | grep -q Open64; then
2008     cc_type=open64
2009     cc_version=__OPEN64__
2010     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2011     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2012     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2013     speed_cflags='-O2'
2014     size_cflags='-Os'
2015 fi
2016
2017 test -n "$cc_type" && enable $cc_type ||
2018     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2019
2020 : ${as_default:=$cc}
2021 : ${dep_cc_default:=$cc}
2022 : ${ld_default:=$cc}
2023 set_default ar as dep_cc ld
2024
2025 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2026 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2027
2028 add_cflags $extra_cflags
2029 add_asflags $extra_cflags
2030
2031 if test -n "$sysroot"; then
2032     case "$cc_type" in
2033         gcc|llvm_gcc)
2034             add_cppflags --sysroot="$sysroot"
2035             add_ldflags --sysroot="$sysroot"
2036         ;;
2037         tms470)
2038             add_cppflags -I"$sysinclude"
2039             add_ldflags  --sysroot="$sysroot"
2040         ;;
2041         clang)
2042             add_cppflags -isysroot "$sysroot"
2043             add_ldflags -isysroot "$sysroot"
2044         ;;
2045     esac
2046 fi
2047
2048 if test "$cpu" = host; then
2049     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2050
2051     case "$cc_type" in
2052         gcc|llvm_gcc)
2053             check_native(){
2054                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2055                 sed -n "/$1=/{
2056                             s/.*$1=\\([^ ]*\\).*/\\1/
2057                             p
2058                             q
2059                         }" $TMPE
2060             }
2061             cpu=$(check_native -march || check_native -mcpu)
2062         ;;
2063     esac
2064
2065     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2066 fi
2067
2068 # Deal with common $arch aliases
2069 case "$arch" in
2070     arm*)
2071         arch="arm"
2072     ;;
2073     mips|mipsel|IP*)
2074         arch="mips"
2075     ;;
2076     mips64*)
2077         arch="mips"
2078         subarch="mips64"
2079     ;;
2080     parisc|hppa)
2081         arch="parisc"
2082     ;;
2083     parisc64|hppa64)
2084         arch="parisc"
2085         subarch="parisc64"
2086     ;;
2087     "Power Macintosh"|ppc|powerpc)
2088         arch="ppc"
2089     ;;
2090     ppc64|powerpc64)
2091         arch="ppc"
2092         subarch="ppc64"
2093     ;;
2094     s390|s390x)
2095         arch="s390"
2096     ;;
2097     sh4|sh)
2098         arch="sh4"
2099     ;;
2100     sun4u|sparc64)
2101         arch="sparc"
2102         subarch="sparc64"
2103     ;;
2104     i[3-6]86|i86pc|BePC|x86_64|amd64)
2105         arch="x86"
2106     ;;
2107 esac
2108
2109 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2110 enable $arch
2111
2112 # Add processor-specific flags
2113 if test "$cpu" = generic; then
2114     : do nothing
2115 elif enabled ppc; then
2116
2117     case $(tolower $cpu) in
2118         601|ppc601|powerpc601)
2119             cpuflags="-mcpu=601"
2120             disable altivec
2121         ;;
2122         603*|ppc603*|powerpc603*)
2123             cpuflags="-mcpu=603"
2124             disable altivec
2125         ;;
2126         604*|ppc604*|powerpc604*)
2127             cpuflags="-mcpu=604"
2128             disable altivec
2129         ;;
2130         g3|75*|ppc75*|powerpc75*)
2131             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2132             disable altivec
2133         ;;
2134         g4|745*|ppc745*|powerpc745*)
2135             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2136         ;;
2137         74*|ppc74*|powerpc74*)
2138             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2139         ;;
2140         g5|970|ppc970|powerpc970|power4*)
2141             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2142         ;;
2143         cell)
2144             cpuflags="-mcpu=cell"
2145             enable ldbrx
2146         ;;
2147         e500v2)
2148             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2149             disable altivec
2150         ;;
2151         e500)
2152             cpuflags="-mcpu=8540 -mhard-float"
2153             disable altivec
2154         ;;
2155     esac
2156
2157 elif enabled x86; then
2158
2159     case $cpu in
2160         i[345]86|pentium)
2161             cpuflags="-march=$cpu"
2162             disable mmx
2163         ;;
2164         # targets that do NOT support conditional mov (cmov)
2165         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2166             cpuflags="-march=$cpu"
2167             disable cmov
2168         ;;
2169         # targets that do support conditional mov (cmov)
2170         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2171             cpuflags="-march=$cpu"
2172             enable cmov
2173             enable fast_cmov
2174         ;;
2175         # targets that do support conditional mov but on which it's slow
2176         pentium4|pentium4m|prescott|nocona)
2177             cpuflags="-march=$cpu"
2178             enable cmov
2179             disable fast_cmov
2180         ;;
2181     esac
2182
2183 elif enabled sparc; then
2184
2185     case $cpu in
2186         niagara)
2187             cpuflags="-mcpu=$cpu"
2188             disable vis
2189         ;;
2190         sparc64)
2191             cpuflags="-mcpu=v9"
2192         ;;
2193     esac
2194
2195 elif enabled arm; then
2196
2197     case $cpu in
2198         armv*)
2199             cpuflags="-march=$cpu"
2200             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2201         ;;
2202         *)
2203             cpuflags="-mcpu=$cpu"
2204             case $cpu in
2205                 cortex-a*)                               subarch=armv7a  ;;
2206                 cortex-r*)                               subarch=armv7r  ;;
2207                 cortex-m*)                               subarch=armv7m  ;;
2208                 arm11*)                                  subarch=armv6   ;;
2209                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2210                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2211             esac
2212         ;;
2213     esac
2214
2215 elif enabled alpha; then
2216
2217     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2218
2219 elif enabled bfin; then
2220
2221     cpuflags="-mcpu=$cpu"
2222
2223 elif enabled mips; then
2224
2225     cpuflags="-march=$cpu"
2226
2227 elif enabled avr32; then
2228
2229     case $cpu in
2230         ap7[02]0[0-2])
2231             subarch="avr32_ap"
2232             cpuflags="-mpart=$cpu"
2233         ;;
2234         ap)
2235             subarch="avr32_ap"
2236             cpuflags="-march=$cpu"
2237         ;;
2238         uc3[ab]*)
2239             subarch="avr32_uc"
2240             cpuflags="-mcpu=$cpu"
2241         ;;
2242         uc)
2243             subarch="avr32_uc"
2244             cpuflags="-march=$cpu"
2245         ;;
2246     esac
2247
2248 fi
2249
2250 add_cflags $cpuflags
2251 add_asflags $cpuflags
2252
2253 # compiler sanity check
2254 check_exec <<EOF
2255 int main(void){ return 0; }
2256 EOF
2257 if test "$?" != 0; then
2258     echo "$cc is unable to create an executable file."
2259     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2260         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2261         echo "Only do this if you know what cross compiling means."
2262     fi
2263     die "C compiler test failed."
2264 fi
2265
2266 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2267 check_cflags -std=c99
2268 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2269 #include <stdlib.h>
2270 EOF
2271 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2272 #include <stdlib.h>
2273 EOF
2274
2275 check_host_cflags -std=c99
2276
2277 case "$arch" in
2278     alpha|ia64|mips|parisc|sparc)
2279         spic=$shared
2280     ;;
2281     x86)
2282         subarch="x86_32"
2283         check_cc <<EOF && subarch="x86_64"
2284         int test[(int)sizeof(char*) - 7];
2285 EOF
2286         if test "$subarch" = "x86_64"; then
2287             spic=$shared
2288         fi
2289     ;;
2290 esac
2291
2292 enable $subarch
2293 enabled spic && enable pic
2294
2295 # OS specific
2296 case $target_os in
2297     haiku)
2298         prefix_default="/boot/common"
2299         network_extralibs="-lnetwork"
2300         ;;
2301     sunos)
2302         FFSERVERLDFLAGS=""
2303         SHFLAGS='-shared -Wl,-h,$$(@F)'
2304         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2305         network_extralibs="-lsocket -lnsl"
2306         add_cppflags -D__EXTENSIONS__
2307         nm_opts='-P -g'
2308         ;;
2309     netbsd)
2310         oss_indev_extralibs="-lossaudio"
2311         oss_outdev_extralibs="-lossaudio"
2312         add_cppflags -D_XOPEN_SOURCE=600
2313         ;;
2314     openbsd)
2315         enable malloc_aligned
2316         # On OpenBSD 4.5. the compiler does not use PIC unless
2317         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2318         # however the generated executable will not do anything
2319         # (simply quits with exit-code 1, no crash, no output).
2320         # Thus explicitly enable PIC here.
2321         enable pic
2322         SHFLAGS='-shared'
2323         oss_indev_extralibs="-lossaudio"
2324         oss_outdev_extralibs="-lossaudio"
2325         ;;
2326     freebsd|dragonfly)
2327         enable malloc_aligned
2328         ;;
2329     bsd/os)
2330         add_extralibs -lpoll -lgnugetopt
2331         strip="strip -d"
2332         ;;
2333     darwin)
2334         enable malloc_aligned
2335         gas="gas-preprocessor.pl $cc"
2336         enabled ppc && add_asflags -force_cpusubtype_ALL
2337         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2338         strip="${strip} -x"
2339         add_ldflags -Wl,-dynamic,-search_paths_first
2340         SLIBSUF=".dylib"
2341         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2342         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2343         FFSERVERLDFLAGS=-Wl,-bind_at_load
2344         objformat="macho"
2345         enabled x86_64 && objformat="macho64"
2346         enabled_any pic shared ||
2347             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2348         ;;
2349     mingw32*)
2350         if test $target_os = "mingw32ce"; then
2351             disable network
2352         else
2353             target_os=mingw32
2354         fi
2355         LIBTARGET=i386
2356         if enabled x86_64; then
2357             enable malloc_aligned
2358             LIBTARGET=x64
2359         elif enabled arm; then
2360             LIBTARGET=arm
2361         fi
2362         shlibdir_default="$bindir_default"
2363         disable ffserver
2364         SLIBPREF=""
2365         SLIBSUF=".dll"
2366         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2367         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2368         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2369         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2370             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2371             install -d "$(LIBDIR)"; \
2372             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2373         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2374         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'
2375         objformat="win32"
2376         enable dos_paths
2377         check_cflags -fno-common
2378         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2379                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2380                 die "ERROR: MinGW runtime version must be >= 3.15."
2381         ;;
2382     cygwin*)
2383         target_os=cygwin
2384         shlibdir_default="$bindir_default"
2385         SLIBPREF="cyg"
2386         SLIBSUF=".dll"
2387         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2388         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2389         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2390         objformat="win32"
2391         enable dos_paths
2392         check_cflags -fno-common
2393         ;;
2394     *-dos|freedos|opendos)
2395         disable ffplay ffserver
2396         disable $INDEV_LIST $OUTDEV_LIST
2397         network_extralibs="-lsocket"
2398         objformat="coff"
2399         enable dos_paths
2400         ;;
2401     linux)
2402         enable dv1394
2403         ;;
2404     irix*)
2405         target_os=irix
2406         ranlib="echo ignoring ranlib"
2407         ;;
2408     os/2*)
2409         strip="lxlite"
2410         ln_s="cp -f"
2411         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2412         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2413         FFSERVERLDFLAGS=""
2414         LIBSUF="_s.a"
2415         SLIBPREF=""
2416         SLIBSUF=".dll"
2417         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2418         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2419         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2420           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2421           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2422           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2423           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2424           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2425         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2426           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2427         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2428         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2429         enable dos_paths
2430         ;;
2431     gnu/kfreebsd)
2432         ;;
2433     gnu)
2434         ;;
2435     none)
2436         ;;
2437     *)
2438         die "Unknown OS '$target_os'."
2439         ;;
2440 esac
2441
2442 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2443
2444 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2445
2446 set_default $PATHS_LIST
2447
2448 # we need to build at least one lib type
2449 if ! enabled_any static shared; then
2450     cat <<EOF
2451 At least one library type must be built.
2452 Specify --enable-static to build the static libraries or --enable-shared to
2453 build the shared libraries as well. To only build the shared libraries specify
2454 --disable-static in addition to --enable-shared.
2455 EOF
2456     exit 1;
2457 fi
2458
2459 disabled static && LIBNAME=""
2460
2461 die_license_disabled() {
2462     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2463 }
2464
2465 die_license_disabled gpl libx264
2466 die_license_disabled gpl libxavs
2467 die_license_disabled gpl libxvid
2468 die_license_disabled gpl postproc
2469 die_license_disabled gpl x11grab
2470
2471 die_license_disabled nonfree libfaac
2472
2473 die_license_disabled version3 libopencore_amrnb
2474 die_license_disabled version3 libopencore_amrwb
2475
2476 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2477
2478 check_deps $ARCH_EXT_LIST
2479
2480 disabled optimizations || check_cflags -fomit-frame-pointer
2481
2482 enable_pic() {
2483     enable pic
2484     add_cppflags -DPIC
2485     add_cflags   -fPIC
2486     add_asflags  -fPIC
2487 }
2488
2489 enabled pic && enable_pic
2490
2491 check_cc <<EOF || die "Symbol mangling check failed."
2492 int ff_extern;
2493 EOF
2494 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2495 extern_prefix=${sym%%ff_extern*}
2496
2497 check_cc <<EOF && enable inline_asm
2498 void foo(void) { __asm__ volatile ("" ::); }
2499 EOF
2500
2501 _restrict=
2502 for restrict_keyword in restrict __restrict__ __restrict; do
2503     check_cc <<EOF && _restrict=$restrict_keyword && break
2504 void foo(char * $restrict_keyword p);
2505 EOF
2506 done
2507
2508 check_cc <<EOF && enable attribute_packed
2509 struct { int x; } __attribute__((packed)) x;
2510 EOF
2511
2512 check_cc <<EOF && enable attribute_may_alias
2513 union { int x; } __attribute__((may_alias)) x;
2514 EOF
2515
2516 check_cc <<EOF || die "endian test failed"
2517 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2518 EOF
2519 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2520
2521 if enabled alpha; then
2522
2523     check_cflags -mieee
2524
2525 elif enabled arm; then
2526
2527     check_cflags -marm
2528     nogas=die
2529
2530     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2531         enable vfp_args
2532     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2533         case "${cross_prefix:-$cc}" in
2534             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2535             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2536 __asm__ (".eabi_attribute 28, 1");
2537 int main(void) { return 0; }
2538 EOF
2539         esac
2540         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2541     fi
2542
2543     # We have to check if pld is a nop and disable it.
2544     check_asm pld '"pld [r0]"'
2545
2546     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2547     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2548     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2549     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2550     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2551     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2552
2553     enabled_all armv6t2 shared !pic && enable_pic
2554
2555 elif enabled mips; then
2556
2557     check_asm loongson '"dmult.g $1, $2, $3"'
2558     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2559
2560 elif enabled ppc; then
2561
2562     enable local_aligned_8 local_aligned_16
2563
2564     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2565     check_asm ibm_asm   '"add 0, 0, 0"'
2566     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2567     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2568
2569     # AltiVec flags: The FSF version of GCC differs from the Apple version
2570     if enabled altivec; then
2571         nogas=warn
2572         check_cflags -maltivec -mabi=altivec &&
2573         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2574         check_cflags -faltivec
2575
2576         # check if our compiler supports Motorola AltiVec C API
2577         check_cc <<EOF || disable altivec
2578 $inc_altivec_h
2579 int main(void) {
2580     vector signed int v1, v2, v3;
2581     v1 = vec_add(v2,v3);
2582     return 0;
2583 }
2584 EOF
2585
2586         # check if our compiler supports braces for vector declarations
2587         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2588 $inc_altivec_h
2589 int main (void) { (vector int) {1}; return 0; }
2590 EOF
2591     fi
2592
2593 elif enabled sparc; then
2594
2595     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2596         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2597
2598 elif enabled x86; then
2599
2600     enable local_aligned_8 local_aligned_16
2601
2602     # check whether EBP is available on x86
2603     # As 'i' is stored on the stack, this program will crash
2604     # if the base pointer is used to access it because the
2605     # base pointer is cleared in the inline assembly code.
2606     check_exec_crash <<EOF && enable ebp_available
2607     volatile int i=0;
2608     __asm__ volatile (
2609         "xorl %%ebp, %%ebp"
2610     ::: "%ebp");
2611     return i;
2612 EOF
2613
2614     # check whether EBX is available on x86
2615     check_asm ebx_available '""::"b"(0)' &&
2616         check_asm ebx_available '"":::"%ebx"'
2617
2618     # check whether xmm clobbers are supported
2619     check_asm xmm_clobbers '"":::"%xmm0"'
2620
2621     # check whether more than 10 operands are supported
2622     check_cc <<EOF && enable ten_operands
2623 int main(void) {
2624     int x=0;
2625     __asm__ volatile(
2626         ""
2627         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2628     );
2629     return 0;
2630 }
2631 EOF
2632
2633     # check whether binutils is new enough to compile SSSE3/MMX2
2634     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2635     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2636
2637     check_asm bswap '"bswap %%eax" ::: "%eax"'
2638
2639     if ! disabled_any asm mmx yasm; then
2640         if check_cmd $yasmexe --version; then
2641             enabled x86_64 && yasm_extra="-m amd64"
2642             yasm_debug="-g dwarf2"
2643         elif check_cmd nasm -v; then
2644             yasmexe=nasm
2645             yasm_debug="-g -F dwarf"
2646             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2647         fi
2648
2649         YASMFLAGS="-f $objformat $yasm_extra"
2650         enabled pic               && append YASMFLAGS "-DPIC"
2651         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2652         case "$objformat" in
2653             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2654         esac
2655
2656         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2657             die "yasm not found, use --disable-yasm for a crippled build"
2658     fi
2659
2660     case "$cpu" in
2661         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2662             disable fast_clz
2663         ;;
2664     esac
2665
2666 fi
2667
2668 if enabled asm; then
2669     as=${gas:=$as}
2670     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2671         $nogas "GNU assembler not found, install gas-preprocessor"
2672 fi
2673
2674 if check_func dlopen; then
2675     ldl=
2676 elif check_func dlopen -ldl; then
2677     ldl=-ldl
2678 fi
2679
2680 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2681 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2682
2683 check_func  fcntl
2684 check_func  fork
2685 check_func  getaddrinfo $network_extralibs
2686 check_func  gethrtime
2687 check_func  getrusage
2688 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2689 check_func  inet_aton $network_extralibs
2690 check_func  isatty
2691 check_func  ${malloc_prefix}memalign            && enable memalign
2692 check_func  mkstemp
2693 check_func  mmap
2694 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2695 check_func  setrlimit
2696 check_func  strerror_r
2697 check_func  strtok_r
2698 check_func_headers io.h setmode
2699 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2700 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2701 check_func_headers windows.h GetProcessTimes
2702 check_func_headers windows.h MapViewOfFile
2703 check_func_headers windows.h VirtualAlloc
2704
2705 check_header conio.h
2706 check_header dlfcn.h
2707 check_header dxva2api.h
2708 check_header malloc.h
2709 check_header poll.h
2710 check_header sys/mman.h
2711 check_header sys/resource.h
2712 check_header sys/select.h
2713 check_header termios.h
2714 check_header vdpau/vdpau.h
2715 check_header vdpau/vdpau_x11.h
2716 check_header X11/extensions/XvMClib.h
2717
2718 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2719
2720 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2721      enabled_any $need_memalign ; then
2722     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2723 fi
2724
2725 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2726 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2727
2728 # check for some common methods of building with pthread support
2729 # do this before the optional library checks as some of them require pthreads
2730 if ! disabled pthreads && ! enabled w32threads; then
2731     enable pthreads
2732     if check_func pthread_create; then
2733         :
2734     elif check_func pthread_create -pthread; then
2735         add_cflags -pthread
2736         add_extralibs -pthread
2737     elif check_func pthread_create -pthreads; then
2738         add_cflags -pthreads
2739         add_extralibs -pthreads
2740     elif check_func pthread_create -lpthreadGC2; then
2741         add_extralibs -lpthreadGC2
2742     elif ! check_lib pthread.h pthread_create -lpthread; then
2743         disable pthreads
2744     fi
2745 fi
2746
2747 for thread in $THREADS_LIST; do
2748     if enabled $thread; then
2749         test -n "$thread_type" &&
2750             die "ERROR: Only one thread type must be selected." ||
2751             thread_type="$thread"
2752     fi
2753 done
2754
2755 check_lib math.h sin -lm
2756 disabled vaapi || check_lib va/va.h vaInitialize -lva
2757
2758 check_mathfunc exp2
2759 check_mathfunc exp2f
2760 check_mathfunc llrint
2761 check_mathfunc llrintf
2762 check_mathfunc log2
2763 check_mathfunc log2f
2764 check_mathfunc lrint
2765 check_mathfunc lrintf
2766 check_mathfunc round
2767 check_mathfunc roundf
2768 check_mathfunc truncf
2769
2770 # these are off by default, so fail if requested and not available
2771 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2772 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2773 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2774                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2775                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2776 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2777 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2778 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2779 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2780 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2781 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2782 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2783                         die "ERROR: libopencv not found"; }
2784 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2785 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2786                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2787 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2788                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2789 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2790 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2791 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2792 enabled libvpx     && {
2793     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2794                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2795     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2796                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2797 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2798                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2799                         die "ERROR: libx264 version must be >= 0.99."; }
2800 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2801 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2802 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2803
2804 # libdc1394 check
2805 if enabled libdc1394; then
2806     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2807         enable libdc1394_2; } ||
2808     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2809         enable libdc1394_1; } ||
2810     die "ERROR: No version of libdc1394 found "
2811 fi
2812
2813 SDL_CONFIG="${cross_prefix}sdl-config"
2814 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2815     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2816     sdl_libs=$("${SDL_CONFIG}" --libs)
2817     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2818     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2819     enable sdl &&
2820     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2821 fi
2822
2823 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2824
2825 if enabled network; then
2826     check_type "sys/types.h sys/socket.h" socklen_t
2827     check_type netdb.h "struct addrinfo"
2828     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2829     check_type netinet/in.h "struct sockaddr_in6"
2830     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2831     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2832     # Prefer arpa/inet.h over winsock2
2833     if check_header arpa/inet.h ; then
2834         check_func closesocket
2835     elif check_header winsock2.h ; then
2836         check_func_headers winsock2.h closesocket -lws2 && \
2837             network_extralibs="-lws2" || \
2838         { check_func_headers winsock2.h closesocket -lws2_32 && \
2839             network_extralibs="-lws2_32"; }
2840         check_type ws2tcpip.h socklen_t
2841         check_type ws2tcpip.h "struct addrinfo"
2842         check_type ws2tcpip.h "struct ipv6_mreq"
2843         check_type ws2tcpip.h "struct sockaddr_in6"
2844         check_type ws2tcpip.h "struct sockaddr_storage"
2845         check_struct winsock2.h "struct sockaddr" sa_len
2846     else
2847         disable network
2848     fi
2849 fi
2850
2851 check_header linux/videodev.h
2852 check_header linux/videodev2.h
2853 check_header sys/videoio.h
2854
2855 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2856 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2857 # w32api 3.12 had it defined wrong
2858 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2859
2860 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2861 { check_header dev/bktr/ioctl_meteor.h &&
2862   check_header dev/bktr/ioctl_bt848.h; } ||
2863 { check_header machine/ioctl_meteor.h &&
2864   check_header machine/ioctl_bt848.h; } ||
2865 { check_header dev/video/meteor/ioctl_meteor.h &&
2866   check_header dev/video/bktr/ioctl_bt848.h; } ||
2867 check_header dev/ic/bt8xx.h
2868
2869 check_header sys/soundcard.h
2870 check_header soundcard.h
2871
2872 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2873
2874 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2875
2876 enabled x11grab                         &&
2877 check_header X11/Xlib.h                 &&
2878 check_header X11/extensions/XShm.h      &&
2879 check_header X11/extensions/Xfixes.h    &&
2880 check_func XOpenDisplay -lX11           &&
2881 check_func XShmCreateImage -lX11 -lXext &&
2882 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2883
2884 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2885 check_cpp_condition \
2886     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2887     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2888       disable vdpau; }
2889 fi
2890
2891 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2892
2893 # add some useful compiler flags if supported
2894 check_cflags -Wdeclaration-after-statement
2895 check_cflags -Wall
2896 check_cflags -Wno-parentheses
2897 check_cflags -Wno-switch
2898 check_cflags -Wdisabled-optimization
2899 check_cflags -Wpointer-arith
2900 check_cflags -Wredundant-decls
2901 check_cflags -Wno-pointer-sign
2902 check_cflags -Wcast-qual
2903 check_cflags -Wwrite-strings
2904 check_cflags -Wtype-limits
2905 check_cflags -Wundef
2906 check_cflags -Wmissing-prototypes
2907 enabled extra_warnings && check_cflags -Winline
2908
2909 # add some linker flags
2910 check_ldflags -Wl,--warn-common
2911 check_ldflags -Wl,--as-needed
2912 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'
2913 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2914
2915 echo "X{};" > $TMPV
2916 if test_ldflags -Wl,--version-script,$TMPV; then
2917     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2918     check_cc <<EOF && enable symver_asm_label
2919 void ff_foo(void) __asm__ ("av_foo@VERSION");
2920 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2921 EOF
2922     check_cc <<EOF && enable symver_gnu_asm
2923 __asm__(".symver ff_foo,av_foo@VERSION");
2924 void ff_foo(void) {}
2925 EOF
2926 fi
2927
2928 if enabled small; then
2929     add_cflags $size_cflags
2930     optimizations="small"
2931 elif enabled optimizations; then
2932     add_cflags $speed_cflags
2933 else
2934     add_cflags $noopt_cflags
2935 fi
2936 check_cflags -fno-math-errno
2937 check_cflags -fno-signed-zeros
2938
2939 if enabled icc; then
2940     # Just warnings, no remarks
2941     check_cflags -w1
2942     # -wd: Disable following warnings
2943     # 144, 167, 556: -Wno-pointer-sign
2944     # 10006: ignoring unknown option -fno-signed-zeros
2945     # 10148: ignoring unknown option -Wno-parentheses
2946     # 10156: ignoring option '-W'; no argument required
2947     check_cflags -wd144,167,556,10006,10148,10156
2948     # 11030: Warning unknown option --as-needed
2949     # 10156: ignoring option '-export'; no argument required
2950     check_ldflags -wd10156,11030
2951     # Allow to compile with optimizations
2952     check_ldflags -march=$cpu
2953     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2954     enable ebp_available
2955     if enabled x86_32; then
2956         test ${icc_version%%.*} -ge 11 && \
2957             check_cflags -falign-stack=maintain-16-byte || \
2958             disable aligned_stack
2959     fi
2960 elif enabled ccc; then
2961     # disable some annoying warnings
2962     add_cflags -msg_disable cvtu32to64
2963     add_cflags -msg_disable embedcomment
2964     add_cflags -msg_disable needconstext
2965     add_cflags -msg_disable nomainieee
2966     add_cflags -msg_disable ptrmismatch1
2967     add_cflags -msg_disable unreachcode
2968 elif enabled gcc; then
2969     check_cflags -fno-tree-vectorize
2970     check_cflags -Werror=implicit-function-declaration
2971     check_cflags -Werror=missing-prototypes
2972 elif enabled llvm_gcc; then
2973     check_cflags -mllvm -stack-alignment=16
2974 elif enabled clang; then
2975     check_cflags -mllvm -stack-alignment=16
2976     check_cflags -Qunused-arguments
2977 elif enabled armcc; then
2978     # 2523: use of inline assembler is deprecated
2979     add_cflags -W${armcc_opt},--diag_suppress=2523
2980     add_cflags -W${armcc_opt},--diag_suppress=1207
2981     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
2982     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
2983 elif enabled tms470; then
2984     add_cflags -pds=824 -pds=837
2985 fi
2986
2987 enabled_any $THREADS_LIST      && enable threads
2988
2989 check_deps $CONFIG_LIST       \
2990            $CONFIG_EXTRA      \
2991            $HAVE_LIST         \
2992            $DECODER_LIST      \
2993            $ENCODER_LIST      \
2994            $HWACCEL_LIST      \
2995            $PARSER_LIST       \
2996            $BSF_LIST          \
2997            $DEMUXER_LIST      \
2998            $MUXER_LIST        \
2999            $FILTER_LIST       \
3000            $INDEV_LIST        \
3001            $OUTDEV_LIST       \
3002            $PROTOCOL_LIST     \
3003            $ACODEC_TESTS      \
3004            $VCODEC_TESTS      \
3005            $LAVF_TESTS        \
3006            $LAVFI_TESTS       \
3007            $SEEK_TESTS        \
3008
3009 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3010
3011 echo "install prefix            $prefix"
3012 echo "source path               $source_path"
3013 echo "C compiler                $cc"
3014 echo "ARCH                      $arch ($cpu)"
3015 if test "$build_suffix" != ""; then
3016     echo "build suffix              $build_suffix"
3017 fi
3018 if test "$extra_version" != ""; then
3019     echo "version string suffix     $extra_version"
3020 fi
3021 echo "big-endian                ${bigendian-no}"
3022 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3023 if enabled x86; then
3024     echo "yasm                      ${yasm-no}"
3025     echo "MMX enabled               ${mmx-no}"
3026     echo "MMX2 enabled              ${mmx2-no}"
3027     echo "3DNow! enabled            ${amd3dnow-no}"
3028     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3029     echo "SSE enabled               ${sse-no}"
3030     echo "SSSE3 enabled             ${ssse3-no}"
3031     echo "CMOV enabled              ${cmov-no}"
3032     echo "CMOV is fast              ${fast_cmov-no}"
3033     echo "EBX available             ${ebx_available-no}"
3034     echo "EBP available             ${ebp_available-no}"
3035     echo "10 operands supported     ${ten_operands-no}"
3036 fi
3037 if enabled arm; then
3038     echo "ARMv5TE enabled           ${armv5te-no}"
3039     echo "ARMv6 enabled             ${armv6-no}"
3040     echo "ARMv6T2 enabled           ${armv6t2-no}"
3041     echo "ARM VFP enabled           ${armvfp-no}"
3042     echo "IWMMXT enabled            ${iwmmxt-no}"
3043     echo "NEON enabled              ${neon-no}"
3044 fi
3045 if enabled mips; then
3046     echo "MMI enabled               ${mmi-no}"
3047 fi
3048 if enabled ppc; then
3049     echo "AltiVec enabled           ${altivec-no}"
3050     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3051     echo "dcbzl available           ${dcbzl-no}"
3052 fi
3053 if enabled sparc; then
3054     echo "VIS enabled               ${vis-no}"
3055 fi
3056 echo "debug symbols             ${debug-no}"
3057 echo "strip symbols             ${stripping-no}"
3058 echo "optimizations             ${optimizations-no}"
3059 echo "static                    ${static-no}"
3060 echo "shared                    ${shared-no}"
3061 echo "postprocessing support    ${postproc-no}"
3062 echo "new filter support        ${avfilter-no}"
3063 echo "network support           ${network-no}"
3064 echo "threading support         ${thread_type-no}"
3065 echo "SDL support               ${sdl-no}"
3066 echo "Sun medialib support      ${mlib-no}"
3067 echo "AVISynth enabled          ${avisynth-no}"
3068 echo "frei0r enabled            ${frei0r-no}"
3069 echo "libdc1394 support         ${libdc1394-no}"
3070 echo "libdirac enabled          ${libdirac-no}"
3071 echo "libfaac enabled           ${libfaac-no}"
3072 echo "libgsm enabled            ${libgsm-no}"
3073 echo "libmp3lame enabled        ${libmp3lame-no}"
3074 echo "libnut enabled            ${libnut-no}"
3075 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3076 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3077 echo "libopencv support         ${libopencv-no}"
3078 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3079 echo "librtmp enabled           ${librtmp-no}"
3080 echo "libschroedinger enabled   ${libschroedinger-no}"
3081 echo "libspeex enabled          ${libspeex-no}"
3082 echo "libtheora enabled         ${libtheora-no}"
3083 echo "libvorbis enabled         ${libvorbis-no}"
3084 echo "libvpx enabled            ${libvpx-no}"
3085 echo "libx264 enabled           ${libx264-no}"
3086 echo "libxavs enabled           ${libxavs-no}"
3087 echo "libxvid enabled           ${libxvid-no}"
3088 echo "zlib enabled              ${zlib-no}"
3089 echo "bzlib enabled             ${bzlib-no}"
3090 echo
3091
3092 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3093     echo "Enabled ${type}s:"
3094     eval list=\$$(toupper $type)_LIST
3095     print_enabled '_*' $list | sort | pr -3 -t
3096     echo
3097 done
3098
3099 license="LGPL version 2.1 or later"
3100 if enabled nonfree; then
3101     license="nonfree and unredistributable"
3102 elif enabled gplv3; then
3103     license="GPL version 3 or later"
3104 elif enabled lgplv3; then
3105     license="LGPL version 3 or later"
3106 elif enabled gpl; then
3107     license="GPL version 2 or later"
3108 fi
3109
3110 echo "License: $license"
3111
3112 echo "Creating config.mak and config.h..."
3113
3114 # build tree in object directory if source path is different from current one
3115 if enabled source_path_used; then
3116     DIRS="
3117         doc
3118         libavcodec
3119         libavcodec/$arch
3120         libavcore
3121         libavdevice
3122         libavfilter
3123         libavfilter/$arch
3124         libavformat
3125         libavutil
3126         libavutil/$arch
3127         libpostproc
3128         libswscale
3129         libswscale/$arch
3130         tests
3131         tools
3132     "
3133     FILES="
3134         Makefile
3135         common.mak
3136         subdir.mak
3137         doc/texi2pod.pl
3138         libavcodec/Makefile
3139         libavcodec/${arch}/Makefile
3140         libavcore/Makefile
3141         libavdevice/Makefile
3142         libavfilter/Makefile
3143         libavfilter/${arch}/Makefile
3144         libavformat/Makefile
3145         libavutil/Makefile
3146         libpostproc/Makefile
3147         libswscale/Makefile
3148     "
3149     map 'mkdir -p $v' $DIRS;
3150     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3151 fi
3152
3153 enabled stripping || strip="echo skipping strip"
3154
3155 config_files="$TMPH config.mak"
3156
3157 cat > config.mak <<EOF
3158 # Automatically generated by configure - do not modify!
3159 ifndef FFMPEG_CONFIG_MAK
3160 FFMPEG_CONFIG_MAK=1
3161 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3162 prefix=$prefix
3163 LIBDIR=\$(DESTDIR)$libdir
3164 SHLIBDIR=\$(DESTDIR)$shlibdir
3165 INCDIR=\$(DESTDIR)$incdir
3166 BINDIR=\$(DESTDIR)$bindir
3167 DATADIR=\$(DESTDIR)$datadir
3168 MANDIR=\$(DESTDIR)$mandir
3169 SRC_PATH="$source_path"
3170 SRC_PATH_BARE=$source_path
3171 BUILD_ROOT="$PWD"
3172 CC_IDENT=$cc_ident
3173 ARCH=$arch
3174 CC=$cc
3175 AS=$as
3176 LD=$ld
3177 DEPCC=$dep_cc
3178 YASM=$yasmexe
3179 YASMDEP=$yasmexe
3180 AR=$ar
3181 RANLIB=$ranlib
3182 CP=cp -p
3183 LN_S=$ln_s
3184 STRIP=$strip
3185 CPPFLAGS=$CPPFLAGS
3186 CFLAGS=$CFLAGS
3187 ASFLAGS=$ASFLAGS
3188 CC_O=$CC_O
3189 LDFLAGS=$LDFLAGS
3190 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3191 SHFLAGS=$SHFLAGS
3192 YASMFLAGS=$YASMFLAGS
3193 BUILDSUF=$build_suffix
3194 FULLNAME=$FULLNAME
3195 LIBPREF=$LIBPREF
3196 LIBSUF=$LIBSUF
3197 LIBNAME=$LIBNAME
3198 SLIBPREF=$SLIBPREF
3199 SLIBSUF=$SLIBSUF
3200 EXESUF=$EXESUF
3201 EXTRA_VERSION=$extra_version
3202 DEPFLAGS=$DEPFLAGS
3203 CCDEP=$CCDEP
3204 ASDEP=$ASDEP
3205 CC_DEPFLAGS=$CC_DEPFLAGS
3206 AS_DEPFLAGS=$AS_DEPFLAGS
3207 HOSTCC=$host_cc
3208 HOSTCFLAGS=$host_cflags
3209 HOSTEXESUF=$HOSTEXESUF
3210 HOSTLDFLAGS=$host_ldflags
3211 HOSTLIBS=$host_libs
3212 TARGET_EXEC=$target_exec
3213 TARGET_PATH=$target_path
3214 SDL_LIBS=$sdl_libs
3215 SDL_CFLAGS=$sdl_cflags
3216 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3217 EXTRALIBS=$extralibs
3218 INSTALL=install
3219 LIBTARGET=${LIBTARGET}
3220 SLIBNAME=${SLIBNAME}
3221 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3222 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3223 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3224 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3225 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3226 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3227 SAMPLES=$samples
3228 EOF
3229
3230 get_version(){
3231     name=$1
3232     file=$source_path/$2
3233     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3234     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3235     lcname=$(tolower $name)
3236     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3237     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3238 }
3239
3240 get_version LIBSWSCALE  libswscale/swscale.h
3241 get_version LIBPOSTPROC libpostproc/postprocess.h
3242 get_version LIBAVCODEC  libavcodec/avcodec.h
3243 get_version LIBAVCORE   libavcore/avcore.h
3244 get_version LIBAVDEVICE libavdevice/avdevice.h
3245 get_version LIBAVFORMAT libavformat/avformat.h
3246 get_version LIBAVUTIL   libavutil/avutil.h
3247 get_version LIBAVFILTER libavfilter/avfilter.h
3248
3249 cat > $TMPH <<EOF
3250 /* Automatically generated by configure - do not modify! */
3251 #ifndef FFMPEG_CONFIG_H
3252 #define FFMPEG_CONFIG_H
3253 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3254 #define FFMPEG_LICENSE "$(c_escape $license)"
3255 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3256 #define CC_TYPE "$cc_type"
3257 #define CC_VERSION $cc_version
3258 #define restrict $_restrict
3259 #define EXTERN_PREFIX "${extern_prefix}"
3260 #define EXTERN_ASM ${extern_prefix}
3261 #define SLIBSUF "$SLIBSUF"
3262 EOF
3263
3264 test -n "$malloc_prefix" &&
3265     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3266
3267 if enabled small || disabled optimizations; then
3268     echo "#undef  av_always_inline"  >> $TMPH
3269     if enabled small; then
3270         echo "#define av_always_inline inline"  >> $TMPH
3271     else
3272         echo "#define av_always_inline av_unused"  >> $TMPH
3273     fi
3274 fi
3275
3276 if enabled yasm; then
3277     append config_files $TMPASM
3278     printf '' >$TMPASM
3279 fi
3280
3281 print_config ARCH_   "$config_files" $ARCH_LIST
3282 print_config HAVE_   "$config_files" $HAVE_LIST
3283 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3284                                      $CONFIG_EXTRA      \
3285                                      $DECODER_LIST      \
3286                                      $ENCODER_LIST      \
3287                                      $HWACCEL_LIST      \
3288                                      $PARSER_LIST       \
3289                                      $BSF_LIST          \
3290                                      $DEMUXER_LIST      \
3291                                      $MUXER_LIST        \
3292                                      $FILTER_LIST       \
3293                                      $PROTOCOL_LIST     \
3294                                      $INDEV_LIST        \
3295                                      $OUTDEV_LIST       \
3296
3297 cat >>config.mak <<EOF
3298 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3299 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3300 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3301 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3302 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3303 EOF
3304
3305 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3306 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3307
3308 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3309 cp_if_changed $TMPH config.h
3310 touch .config
3311
3312 enabled yasm && cp_if_changed $TMPASM config.asm
3313
3314 cat > $TMPH <<EOF
3315 /* Generated by ffconf */
3316 #ifndef AVUTIL_AVCONFIG_H
3317 #define AVUTIL_AVCONFIG_H
3318 EOF
3319
3320 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3321
3322 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3323
3324 cp_if_changed $TMPH libavutil/avconfig.h
3325
3326 test -n "$WARNINGS" && printf "\n$WARNINGS"
3327
3328 # build pkg-config files
3329
3330 pkgconfig_generate(){
3331 name=$1
3332 shortname=${name#lib}${build_suffix}
3333 comment=$2
3334 version=$3
3335 libs=$4
3336 requires=$5
3337 enabled ${name#lib} || return 0
3338 cat <<EOF > $name/$name.pc
3339 prefix=$prefix
3340 exec_prefix=\${prefix}
3341 libdir=$libdir
3342 includedir=$incdir
3343
3344 Name: $name
3345 Description: $comment
3346 Version: $version
3347 Requires: $(enabled shared || echo $requires)
3348 Requires.private: $(enabled shared && echo $requires)
3349 Conflicts:
3350 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3351 Libs.private: $(enabled shared && echo $libs)
3352 Cflags: -I\${includedir}
3353 EOF
3354 cat <<EOF > $name/$name-uninstalled.pc
3355 prefix=
3356 exec_prefix=
3357 libdir=\${pcfiledir}
3358 includedir=${source_path}
3359
3360 Name: $name
3361 Description: $comment
3362 Version: $version
3363 Requires: $requires
3364 Conflicts:
3365 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3366 Cflags: -I\${includedir}
3367 EOF
3368 }
3369
3370 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3371 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3372 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3373 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3374 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3375 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3376 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3377 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"