configure: better test for mktemp
[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_select="ac3_parser"
1356 asf_stream_muxer_select="asf_muxer"
1357 avisynth_demuxer_deps="avisynth"
1358 dirac_demuxer_select="dirac_parser"
1359 eac3_demuxer_select="ac3_parser"
1360 flac_demuxer_select="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_select="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 : ${TMPDIR:=/tmp}
1795
1796 if ! check_cmd mktemp -u XXXXXX; then
1797     # simple replacement for missing mktemp
1798     # NOT SAFE FOR GENERAL USE
1799     mktemp(){
1800         echo "${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
1814 tmpfile TMPC  .c
1815 tmpfile TMPE  $EXESUF
1816 tmpfile TMPH  .h
1817 tmpfile TMPO  .o
1818 tmpfile TMPS  .S
1819 tmpfile TMPV  .ver
1820 tmpfile TMPSH .sh
1821 tmpfile TMPASM .asm
1822
1823 unset -f mktemp
1824
1825 chmod +x $TMPE
1826
1827 # make sure we can execute files in $TMPDIR
1828 cat > $TMPSH 2>> $logfile <<EOF
1829 #! /bin/sh
1830 EOF
1831 chmod +x $TMPSH >> $logfile 2>&1
1832 if ! $TMPSH >> $logfile 2>&1; then
1833     cat <<EOF
1834 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1835 variable to another directory and make sure that it is not mounted noexec.
1836 EOF
1837     die "Sanity test failed."
1838 fi
1839
1840 filter_cflags=echo
1841 filter_cppflags=echo
1842 filter_asflags=echo
1843
1844 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1845     cc_type=llvm_gcc
1846     cc_version=__VERSION__
1847     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1848     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1849     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1850     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1851     speed_cflags='-O3'
1852     size_cflags='-Os'
1853 elif $cc -v 2>&1 | grep -qi ^gcc; then
1854     cc_type=gcc
1855     cc_version=__VERSION__
1856     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1857     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1858     if ! $cc -dumpversion | grep -q '^2\.'; then
1859         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1860         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1861     fi
1862     speed_cflags='-O3'
1863     size_cflags='-Os'
1864 elif $cc --version 2>/dev/null | grep -q Intel; then
1865     cc_type=icc
1866     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1867     cc_ident=$($cc --version | head -n1)
1868     icc_version=$($cc -dumpversion)
1869     CC_DEPFLAGS='-MMD'
1870     AS_DEPFLAGS='-MMD'
1871     speed_cflags='-O3'
1872     size_cflags='-Os'
1873     noopt_cflags='-O1'
1874 elif $cc -v 2>&1 | grep -q xlc; then
1875     cc_type=xlc
1876     cc_version="AV_STRINGIFY(__IBMC__)"
1877     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1878     speed_cflags='-O5'
1879     size_cflags='-O5 -qcompact'
1880 elif $cc -V 2>/dev/null | grep -q Compaq; then
1881     cc_type=ccc
1882     cc_version="AV_STRINGIFY(__DECC_VER)"
1883     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1884     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1885     debuglevel=3
1886     add_ldflags -Wl,-z,now # calls to libots crash without this
1887     speed_cflags='-fast'
1888     size_cflags='-O1'
1889 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1890     test -d "$sysroot" || die "No valid sysroot specified."
1891     cc_type=armcc
1892     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1893     cc_ident=$($cc --vsn | head -n1)
1894     armcc_conf="$PWD/armcc.conf"
1895     $cc --arm_linux_configure                 \
1896         --arm_linux_config_file="$armcc_conf" \
1897         --configure_sysroot="$sysroot"        \
1898         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1899         die "Error creating armcc configuration file."
1900     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1901     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1902     as_default="${cross_prefix}gcc"
1903     CC_DEPFLAGS='-MMD'
1904     AS_DEPFLAGS='-MMD'
1905     speed_cflags='-O3'
1906     size_cflags='-Os'
1907 elif $cc -version 2>/dev/null | grep -q TMS470; then
1908     cc_type=tms470
1909     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1910     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1911     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1912     CC_O='-fr=$(@D)'
1913     as_default="${cross_prefix}gcc"
1914     ld_default="${cross_prefix}gcc"
1915     TMPO=$(basename $TMPC .c).o
1916     append TMPFILES $TMPO
1917     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1918     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1919     AS_DEPFLAGS='-MMD'
1920     speed_cflags='-O3 -mf=5'
1921     size_cflags='-O3 -mf=2'
1922     filter_cflags=tms470_flags
1923     tms470_flags(){
1924         for flag; do
1925             case $flag in
1926                 -march=*|-mcpu=*)
1927                     case "${flag#*=}" in
1928                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1929                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1930                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1931                         armv6*|arm11*)          echo -mv=6   ;;
1932                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1933                                                 echo -mv=5e  ;;
1934                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1935                     esac
1936                     ;;
1937                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1938                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1939                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1940                 -msoft-float)   echo --float_support=vfplib       ;;
1941                 -O[0-3]|-mf=*)  echo $flag                        ;;
1942                 -g)             echo -g -mn                       ;;
1943                 -pds=*)         echo $flag                        ;;
1944             esac
1945         done
1946     }
1947 elif $cc -v 2>&1 | grep -q clang; then
1948     cc_type=clang
1949     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1950         cc_version=__clang_version__ || cc_version=__VERSION__
1951     cc_ident=$($cc --version | head -n1)
1952     CC_DEPFLAGS='-MMD'
1953     AS_DEPFLAGS='-MMD'
1954     speed_cflags='-O3'
1955     size_cflags='-Os'
1956 elif $cc -V 2>&1 | grep -q Sun; then
1957     cc_type=suncc
1958     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1959     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1960     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1961     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1962     speed_cflags='-O5'
1963     size_cflags='-O5 -xspace'
1964     filter_cflags=suncc_flags
1965     suncc_flags(){
1966         for flag; do
1967             case $flag in
1968                 -march=*|-mcpu=*)
1969                     case "${flag#*=}" in
1970                         native)                   echo -xtarget=native       ;;
1971                         v9|niagara)               echo -xarch=sparc          ;;
1972                         ultrasparc)               echo -xarch=sparcvis       ;;
1973                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1974                         i586|pentium)             echo -xchip=pentium        ;;
1975                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1976                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1977                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1978                         pentium4*)          echo -xtarget=pentium4           ;;
1979                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1980                         *-sse3)             echo -xarch=sse3                 ;;
1981                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1982                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1983                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1984                         k8|opteron|athlon64|athlon-fx)
1985                                                   echo -xarch=sse2a          ;;
1986                         athlon*)                  echo -xarch=pentium_proa   ;;
1987                     esac
1988                     ;;
1989                 -std=c99)             echo -xc99              ;;
1990                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1991                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1992                 -W*,*)                echo $flag              ;;
1993                 -f*-*|-W*)                                    ;;
1994                 *)                    echo $flag              ;;
1995             esac
1996         done
1997     }
1998 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1999     cc_type=pathscale
2000     cc_version=__PATHSCALE__
2001     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2002     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2003     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2004     speed_cflags='-O2'
2005     size_cflags='-Os'
2006 elif $cc -v 2>&1 | grep -q Open64; then
2007     cc_type=open64
2008     cc_version=__OPEN64__
2009     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2010     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2011     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2012     speed_cflags='-O2'
2013     size_cflags='-Os'
2014 fi
2015
2016 test -n "$cc_type" && enable $cc_type ||
2017     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2018
2019 : ${as_default:=$cc}
2020 : ${dep_cc_default:=$cc}
2021 : ${ld_default:=$cc}
2022 set_default ar as dep_cc ld
2023
2024 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2025 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2026
2027 add_cflags $extra_cflags
2028 add_asflags $extra_cflags
2029
2030 if test -n "$sysroot"; then
2031     case "$cc_type" in
2032         gcc|llvm_gcc)
2033             add_cppflags --sysroot="$sysroot"
2034             add_ldflags --sysroot="$sysroot"
2035         ;;
2036         tms470)
2037             add_cppflags -I"$sysinclude"
2038             add_ldflags  --sysroot="$sysroot"
2039         ;;
2040         clang)
2041             add_cppflags -isysroot "$sysroot"
2042             add_ldflags -isysroot "$sysroot"
2043         ;;
2044     esac
2045 fi
2046
2047 if test "$cpu" = host; then
2048     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2049
2050     case "$cc_type" in
2051         gcc|llvm_gcc)
2052             check_native(){
2053                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2054                 sed -n "/$1=/{
2055                             s/.*$1=\\([^ ]*\\).*/\\1/
2056                             p
2057                             q
2058                         }" $TMPE
2059             }
2060             cpu=$(check_native -march || check_native -mcpu)
2061         ;;
2062     esac
2063
2064     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2065 fi
2066
2067 # Deal with common $arch aliases
2068 case "$arch" in
2069     arm*)
2070         arch="arm"
2071     ;;
2072     mips|mipsel|IP*)
2073         arch="mips"
2074     ;;
2075     mips64*)
2076         arch="mips"
2077         subarch="mips64"
2078     ;;
2079     parisc|hppa)
2080         arch="parisc"
2081     ;;
2082     parisc64|hppa64)
2083         arch="parisc"
2084         subarch="parisc64"
2085     ;;
2086     "Power Macintosh"|ppc|powerpc)
2087         arch="ppc"
2088     ;;
2089     ppc64|powerpc64)
2090         arch="ppc"
2091         subarch="ppc64"
2092     ;;
2093     s390|s390x)
2094         arch="s390"
2095     ;;
2096     sh4|sh)
2097         arch="sh4"
2098     ;;
2099     sun4u|sparc64)
2100         arch="sparc"
2101         subarch="sparc64"
2102     ;;
2103     i[3-6]86|i86pc|BePC|x86_64|amd64)
2104         arch="x86"
2105     ;;
2106 esac
2107
2108 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2109 enable $arch
2110
2111 # Add processor-specific flags
2112 if test "$cpu" = generic; then
2113     : do nothing
2114 elif enabled ppc; then
2115
2116     case $(tolower $cpu) in
2117         601|ppc601|powerpc601)
2118             cpuflags="-mcpu=601"
2119             disable altivec
2120         ;;
2121         603*|ppc603*|powerpc603*)
2122             cpuflags="-mcpu=603"
2123             disable altivec
2124         ;;
2125         604*|ppc604*|powerpc604*)
2126             cpuflags="-mcpu=604"
2127             disable altivec
2128         ;;
2129         g3|75*|ppc75*|powerpc75*)
2130             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2131             disable altivec
2132         ;;
2133         g4|745*|ppc745*|powerpc745*)
2134             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2135         ;;
2136         74*|ppc74*|powerpc74*)
2137             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2138         ;;
2139         g5|970|ppc970|powerpc970|power4*)
2140             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2141         ;;
2142         cell)
2143             cpuflags="-mcpu=cell"
2144             enable ldbrx
2145         ;;
2146         e500v2)
2147             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2148             disable altivec
2149         ;;
2150         e500)
2151             cpuflags="-mcpu=8540 -mhard-float"
2152             disable altivec
2153         ;;
2154     esac
2155
2156 elif enabled x86; then
2157
2158     case $cpu in
2159         i[345]86|pentium)
2160             cpuflags="-march=$cpu"
2161             disable mmx
2162         ;;
2163         # targets that do NOT support conditional mov (cmov)
2164         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2165             cpuflags="-march=$cpu"
2166             disable cmov
2167         ;;
2168         # targets that do support conditional mov (cmov)
2169         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2170             cpuflags="-march=$cpu"
2171             enable cmov
2172             enable fast_cmov
2173         ;;
2174         # targets that do support conditional mov but on which it's slow
2175         pentium4|pentium4m|prescott|nocona)
2176             cpuflags="-march=$cpu"
2177             enable cmov
2178             disable fast_cmov
2179         ;;
2180     esac
2181
2182 elif enabled sparc; then
2183
2184     case $cpu in
2185         niagara)
2186             cpuflags="-mcpu=$cpu"
2187             disable vis
2188         ;;
2189         sparc64)
2190             cpuflags="-mcpu=v9"
2191         ;;
2192     esac
2193
2194 elif enabled arm; then
2195
2196     case $cpu in
2197         armv*)
2198             cpuflags="-march=$cpu"
2199             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2200         ;;
2201         *)
2202             cpuflags="-mcpu=$cpu"
2203             case $cpu in
2204                 cortex-a*)                               subarch=armv7a  ;;
2205                 cortex-r*)                               subarch=armv7r  ;;
2206                 cortex-m*)                               subarch=armv7m  ;;
2207                 arm11*)                                  subarch=armv6   ;;
2208                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2209                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2210             esac
2211         ;;
2212     esac
2213
2214 elif enabled alpha; then
2215
2216     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2217
2218 elif enabled bfin; then
2219
2220     cpuflags="-mcpu=$cpu"
2221
2222 elif enabled mips; then
2223
2224     cpuflags="-march=$cpu"
2225
2226 elif enabled avr32; then
2227
2228     case $cpu in
2229         ap7[02]0[0-2])
2230             subarch="avr32_ap"
2231             cpuflags="-mpart=$cpu"
2232         ;;
2233         ap)
2234             subarch="avr32_ap"
2235             cpuflags="-march=$cpu"
2236         ;;
2237         uc3[ab]*)
2238             subarch="avr32_uc"
2239             cpuflags="-mcpu=$cpu"
2240         ;;
2241         uc)
2242             subarch="avr32_uc"
2243             cpuflags="-march=$cpu"
2244         ;;
2245     esac
2246
2247 fi
2248
2249 add_cflags $cpuflags
2250 add_asflags $cpuflags
2251
2252 # compiler sanity check
2253 check_exec <<EOF
2254 int main(void){ return 0; }
2255 EOF
2256 if test "$?" != 0; then
2257     echo "$cc is unable to create an executable file."
2258     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2259         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2260         echo "Only do this if you know what cross compiling means."
2261     fi
2262     die "C compiler test failed."
2263 fi
2264
2265 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2266 check_cflags -std=c99
2267 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2268 #include <stdlib.h>
2269 EOF
2270 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2271 #include <stdlib.h>
2272 EOF
2273
2274 check_host_cflags -std=c99
2275
2276 case "$arch" in
2277     alpha|ia64|mips|parisc|sparc)
2278         spic=$shared
2279     ;;
2280     x86)
2281         subarch="x86_32"
2282         check_cc <<EOF && subarch="x86_64"
2283         int test[(int)sizeof(char*) - 7];
2284 EOF
2285         if test "$subarch" = "x86_64"; then
2286             spic=$shared
2287         fi
2288     ;;
2289 esac
2290
2291 enable $subarch
2292 enabled spic && enable pic
2293
2294 # OS specific
2295 case $target_os in
2296     haiku)
2297         prefix_default="/boot/common"
2298         network_extralibs="-lnetwork"
2299         ;;
2300     sunos)
2301         FFSERVERLDFLAGS=""
2302         SHFLAGS='-shared -Wl,-h,$$(@F)'
2303         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2304         network_extralibs="-lsocket -lnsl"
2305         add_cppflags -D__EXTENSIONS__
2306         nm_opts='-P -g'
2307         ;;
2308     netbsd)
2309         oss_indev_extralibs="-lossaudio"
2310         oss_outdev_extralibs="-lossaudio"
2311         add_cppflags -D_XOPEN_SOURCE=600
2312         ;;
2313     openbsd)
2314         enable malloc_aligned
2315         # On OpenBSD 4.5. the compiler does not use PIC unless
2316         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2317         # however the generated executable will not do anything
2318         # (simply quits with exit-code 1, no crash, no output).
2319         # Thus explicitly enable PIC here.
2320         enable pic
2321         SHFLAGS='-shared'
2322         oss_indev_extralibs="-lossaudio"
2323         oss_outdev_extralibs="-lossaudio"
2324         ;;
2325     freebsd|dragonfly)
2326         enable malloc_aligned
2327         ;;
2328     bsd/os)
2329         add_extralibs -lpoll -lgnugetopt
2330         strip="strip -d"
2331         ;;
2332     darwin)
2333         enable malloc_aligned
2334         gas="gas-preprocessor.pl $cc"
2335         enabled ppc && add_asflags -force_cpusubtype_ALL
2336         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2337         strip="${strip} -x"
2338         add_ldflags -Wl,-dynamic,-search_paths_first
2339         SLIBSUF=".dylib"
2340         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2341         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2342         FFSERVERLDFLAGS=-Wl,-bind_at_load
2343         objformat="macho"
2344         enabled x86_64 && objformat="macho64"
2345         enabled_any pic shared ||
2346             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2347         ;;
2348     mingw32*)
2349         if test $target_os = "mingw32ce"; then
2350             disable network
2351         else
2352             target_os=mingw32
2353         fi
2354         LIBTARGET=i386
2355         if enabled x86_64; then
2356             enable malloc_aligned
2357             LIBTARGET=x64
2358         elif enabled arm; then
2359             LIBTARGET=arm
2360         fi
2361         shlibdir_default="$bindir_default"
2362         disable ffserver
2363         SLIBPREF=""
2364         SLIBSUF=".dll"
2365         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2366         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2367         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2368         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2369             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2370             install -d "$(LIBDIR)"; \
2371             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2372         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2373         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'
2374         objformat="win32"
2375         enable dos_paths
2376         check_cflags -fno-common
2377         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2378                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2379                 die "ERROR: MinGW runtime version must be >= 3.15."
2380         ;;
2381     cygwin*)
2382         target_os=cygwin
2383         shlibdir_default="$bindir_default"
2384         SLIBPREF="cyg"
2385         SLIBSUF=".dll"
2386         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2387         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2388         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2389         objformat="win32"
2390         enable dos_paths
2391         check_cflags -fno-common
2392         ;;
2393     *-dos|freedos|opendos)
2394         disable ffplay ffserver
2395         disable $INDEV_LIST $OUTDEV_LIST
2396         network_extralibs="-lsocket"
2397         objformat="coff"
2398         enable dos_paths
2399         ;;
2400     linux)
2401         enable dv1394
2402         ;;
2403     irix*)
2404         target_os=irix
2405         ranlib="echo ignoring ranlib"
2406         ;;
2407     os/2*)
2408         strip="lxlite"
2409         ln_s="cp -f"
2410         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2411         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2412         FFSERVERLDFLAGS=""
2413         LIBSUF="_s.a"
2414         SLIBPREF=""
2415         SLIBSUF=".dll"
2416         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2417         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2418         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2419           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2420           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2421           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2422           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2423           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2424         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2425           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2426         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2427         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2428         enable dos_paths
2429         ;;
2430     gnu/kfreebsd)
2431         ;;
2432     gnu)
2433         ;;
2434     none)
2435         ;;
2436     *)
2437         die "Unknown OS '$target_os'."
2438         ;;
2439 esac
2440
2441 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2442
2443 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2444
2445 set_default $PATHS_LIST
2446
2447 # we need to build at least one lib type
2448 if ! enabled_any static shared; then
2449     cat <<EOF
2450 At least one library type must be built.
2451 Specify --enable-static to build the static libraries or --enable-shared to
2452 build the shared libraries as well. To only build the shared libraries specify
2453 --disable-static in addition to --enable-shared.
2454 EOF
2455     exit 1;
2456 fi
2457
2458 disabled static && LIBNAME=""
2459
2460 die_license_disabled() {
2461     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2462 }
2463
2464 die_license_disabled gpl libx264
2465 die_license_disabled gpl libxavs
2466 die_license_disabled gpl libxvid
2467 die_license_disabled gpl postproc
2468 die_license_disabled gpl x11grab
2469
2470 die_license_disabled nonfree libfaac
2471
2472 die_license_disabled version3 libopencore_amrnb
2473 die_license_disabled version3 libopencore_amrwb
2474
2475 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2476
2477 check_deps $ARCH_EXT_LIST
2478
2479 disabled optimizations || check_cflags -fomit-frame-pointer
2480
2481 enable_pic() {
2482     enable pic
2483     add_cppflags -DPIC
2484     add_cflags   -fPIC
2485     add_asflags  -fPIC
2486 }
2487
2488 enabled pic && enable_pic
2489
2490 check_cc <<EOF || die "Symbol mangling check failed."
2491 int ff_extern;
2492 EOF
2493 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2494 extern_prefix=${sym%%ff_extern*}
2495
2496 check_cc <<EOF && enable inline_asm
2497 void foo(void) { __asm__ volatile ("" ::); }
2498 EOF
2499
2500 _restrict=
2501 for restrict_keyword in restrict __restrict__ __restrict; do
2502     check_cc <<EOF && _restrict=$restrict_keyword && break
2503 void foo(char * $restrict_keyword p);
2504 EOF
2505 done
2506
2507 check_cc <<EOF && enable attribute_packed
2508 struct { int x; } __attribute__((packed)) x;
2509 EOF
2510
2511 check_cc <<EOF && enable attribute_may_alias
2512 union { int x; } __attribute__((may_alias)) x;
2513 EOF
2514
2515 check_cc <<EOF || die "endian test failed"
2516 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2517 EOF
2518 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2519
2520 if enabled alpha; then
2521
2522     check_cflags -mieee
2523
2524 elif enabled arm; then
2525
2526     check_cflags -marm
2527     nogas=die
2528
2529     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2530         enable vfp_args
2531     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2532         case "${cross_prefix:-$cc}" in
2533             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2534             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2535 __asm__ (".eabi_attribute 28, 1");
2536 int main(void) { return 0; }
2537 EOF
2538         esac
2539         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2540     fi
2541
2542     # We have to check if pld is a nop and disable it.
2543     check_asm pld '"pld [r0]"'
2544
2545     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2546     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2547     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2548     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2549     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2550     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2551
2552     enabled_all armv6t2 shared !pic && enable_pic
2553
2554 elif enabled mips; then
2555
2556     check_asm loongson '"dmult.g $1, $2, $3"'
2557     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2558
2559 elif enabled ppc; then
2560
2561     enable local_aligned_8 local_aligned_16
2562
2563     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2564     check_asm ibm_asm   '"add 0, 0, 0"'
2565     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2566     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2567
2568     # AltiVec flags: The FSF version of GCC differs from the Apple version
2569     if enabled altivec; then
2570         nogas=warn
2571         check_cflags -maltivec -mabi=altivec &&
2572         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2573         check_cflags -faltivec
2574
2575         # check if our compiler supports Motorola AltiVec C API
2576         check_cc <<EOF || disable altivec
2577 $inc_altivec_h
2578 int main(void) {
2579     vector signed int v1, v2, v3;
2580     v1 = vec_add(v2,v3);
2581     return 0;
2582 }
2583 EOF
2584
2585         # check if our compiler supports braces for vector declarations
2586         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2587 $inc_altivec_h
2588 int main (void) { (vector int) {1}; return 0; }
2589 EOF
2590     fi
2591
2592 elif enabled sparc; then
2593
2594     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2595         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2596
2597 elif enabled x86; then
2598
2599     enable local_aligned_8 local_aligned_16
2600
2601     # check whether EBP is available on x86
2602     # As 'i' is stored on the stack, this program will crash
2603     # if the base pointer is used to access it because the
2604     # base pointer is cleared in the inline assembly code.
2605     check_exec_crash <<EOF && enable ebp_available
2606     volatile int i=0;
2607     __asm__ volatile (
2608         "xorl %%ebp, %%ebp"
2609     ::: "%ebp");
2610     return i;
2611 EOF
2612
2613     # check whether EBX is available on x86
2614     check_asm ebx_available '""::"b"(0)' &&
2615         check_asm ebx_available '"":::"%ebx"'
2616
2617     # check whether xmm clobbers are supported
2618     check_asm xmm_clobbers '"":::"%xmm0"'
2619
2620     # check whether more than 10 operands are supported
2621     check_cc <<EOF && enable ten_operands
2622 int main(void) {
2623     int x=0;
2624     __asm__ volatile(
2625         ""
2626         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2627     );
2628     return 0;
2629 }
2630 EOF
2631
2632     # check whether binutils is new enough to compile SSSE3/MMX2
2633     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2634     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2635
2636     check_asm bswap '"bswap %%eax" ::: "%eax"'
2637
2638     if ! disabled_any asm mmx yasm; then
2639         if check_cmd $yasmexe --version; then
2640             enabled x86_64 && yasm_extra="-m amd64"
2641             yasm_debug="-g dwarf2"
2642         elif check_cmd nasm -v; then
2643             yasmexe=nasm
2644             yasm_debug="-g -F dwarf"
2645             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2646         fi
2647
2648         YASMFLAGS="-f $objformat $yasm_extra"
2649         enabled pic               && append YASMFLAGS "-DPIC"
2650         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2651         case "$objformat" in
2652             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2653         esac
2654
2655         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2656             die "yasm not found, use --disable-yasm for a crippled build"
2657     fi
2658
2659     case "$cpu" in
2660         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2661             disable fast_clz
2662         ;;
2663     esac
2664
2665 fi
2666
2667 if enabled asm; then
2668     as=${gas:=$as}
2669     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2670         $nogas "GNU assembler not found, install gas-preprocessor"
2671 fi
2672
2673 if check_func dlopen; then
2674     ldl=
2675 elif check_func dlopen -ldl; then
2676     ldl=-ldl
2677 fi
2678
2679 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2680 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2681
2682 check_func  fcntl
2683 check_func  fork
2684 check_func  getaddrinfo $network_extralibs
2685 check_func  gethrtime
2686 check_func  getrusage
2687 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2688 check_func  inet_aton $network_extralibs
2689 check_func  isatty
2690 check_func  ${malloc_prefix}memalign            && enable memalign
2691 check_func  mkstemp
2692 check_func  mmap
2693 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2694 check_func  setrlimit
2695 check_func  strerror_r
2696 check_func  strtok_r
2697 check_func_headers io.h setmode
2698 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2699 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2700 check_func_headers windows.h GetProcessTimes
2701 check_func_headers windows.h MapViewOfFile
2702 check_func_headers windows.h VirtualAlloc
2703
2704 check_header conio.h
2705 check_header dlfcn.h
2706 check_header dxva2api.h
2707 check_header malloc.h
2708 check_header poll.h
2709 check_header sys/mman.h
2710 check_header sys/resource.h
2711 check_header sys/select.h
2712 check_header termios.h
2713 check_header vdpau/vdpau.h
2714 check_header vdpau/vdpau_x11.h
2715 check_header X11/extensions/XvMClib.h
2716
2717 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2718
2719 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2720      enabled_any $need_memalign ; then
2721     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2722 fi
2723
2724 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2725 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2726
2727 # check for some common methods of building with pthread support
2728 # do this before the optional library checks as some of them require pthreads
2729 if ! disabled pthreads && ! enabled w32threads; then
2730     enable pthreads
2731     if check_func pthread_create; then
2732         :
2733     elif check_func pthread_create -pthread; then
2734         add_cflags -pthread
2735         add_extralibs -pthread
2736     elif check_func pthread_create -pthreads; then
2737         add_cflags -pthreads
2738         add_extralibs -pthreads
2739     elif check_func pthread_create -lpthreadGC2; then
2740         add_extralibs -lpthreadGC2
2741     elif ! check_lib pthread.h pthread_create -lpthread; then
2742         disable pthreads
2743     fi
2744 fi
2745
2746 for thread in $THREADS_LIST; do
2747     if enabled $thread; then
2748         test -n "$thread_type" &&
2749             die "ERROR: Only one thread type must be selected." ||
2750             thread_type="$thread"
2751     fi
2752 done
2753
2754 check_lib math.h sin -lm
2755 disabled vaapi || check_lib va/va.h vaInitialize -lva
2756
2757 check_mathfunc exp2
2758 check_mathfunc exp2f
2759 check_mathfunc llrint
2760 check_mathfunc llrintf
2761 check_mathfunc log2
2762 check_mathfunc log2f
2763 check_mathfunc lrint
2764 check_mathfunc lrintf
2765 check_mathfunc round
2766 check_mathfunc roundf
2767 check_mathfunc truncf
2768
2769 # these are off by default, so fail if requested and not available
2770 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2771 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2772 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2773                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2774                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2775 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2776 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2777 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2778 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2779 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2780 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2781 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2782                         die "ERROR: libopencv not found"; }
2783 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2784 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2785                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2786 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2787                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2788 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2789 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2790 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2791 enabled libvpx     && {
2792     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2793                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2794     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2795                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2796 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2797                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2798                         die "ERROR: libx264 version must be >= 0.99."; }
2799 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2800 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2801 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2802
2803 # libdc1394 check
2804 if enabled libdc1394; then
2805     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2806         enable libdc1394_2; } ||
2807     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2808         enable libdc1394_1; } ||
2809     die "ERROR: No version of libdc1394 found "
2810 fi
2811
2812 SDL_CONFIG="${cross_prefix}sdl-config"
2813 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2814     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2815     sdl_libs=$("${SDL_CONFIG}" --libs)
2816     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2817     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2818     enable sdl &&
2819     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2820 fi
2821
2822 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2823
2824 if enabled network; then
2825     check_type "sys/types.h sys/socket.h" socklen_t
2826     check_type netdb.h "struct addrinfo"
2827     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2828     check_type netinet/in.h "struct sockaddr_in6"
2829     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2830     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2831     # Prefer arpa/inet.h over winsock2
2832     if check_header arpa/inet.h ; then
2833         check_func closesocket
2834     elif check_header winsock2.h ; then
2835         check_func_headers winsock2.h closesocket -lws2 && \
2836             network_extralibs="-lws2" || \
2837         { check_func_headers winsock2.h closesocket -lws2_32 && \
2838             network_extralibs="-lws2_32"; }
2839         check_type ws2tcpip.h socklen_t
2840         check_type ws2tcpip.h "struct addrinfo"
2841         check_type ws2tcpip.h "struct ipv6_mreq"
2842         check_type ws2tcpip.h "struct sockaddr_in6"
2843         check_type ws2tcpip.h "struct sockaddr_storage"
2844         check_struct winsock2.h "struct sockaddr" sa_len
2845     else
2846         disable network
2847     fi
2848 fi
2849
2850 check_header linux/videodev.h
2851 check_header linux/videodev2.h
2852 check_header sys/videoio.h
2853
2854 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2855 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2856 # w32api 3.12 had it defined wrong
2857 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2858
2859 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2860 { check_header dev/bktr/ioctl_meteor.h &&
2861   check_header dev/bktr/ioctl_bt848.h; } ||
2862 { check_header machine/ioctl_meteor.h &&
2863   check_header machine/ioctl_bt848.h; } ||
2864 { check_header dev/video/meteor/ioctl_meteor.h &&
2865   check_header dev/video/bktr/ioctl_bt848.h; } ||
2866 check_header dev/ic/bt8xx.h
2867
2868 check_header sys/soundcard.h
2869 check_header soundcard.h
2870
2871 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2872
2873 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2874
2875 enabled x11grab                         &&
2876 check_header X11/Xlib.h                 &&
2877 check_header X11/extensions/XShm.h      &&
2878 check_header X11/extensions/Xfixes.h    &&
2879 check_func XOpenDisplay -lX11           &&
2880 check_func XShmCreateImage -lX11 -lXext &&
2881 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2882
2883 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2884 check_cpp_condition \
2885     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2886     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2887       disable vdpau; }
2888 fi
2889
2890 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2891
2892 # add some useful compiler flags if supported
2893 check_cflags -Wdeclaration-after-statement
2894 check_cflags -Wall
2895 check_cflags -Wno-parentheses
2896 check_cflags -Wno-switch
2897 check_cflags -Wdisabled-optimization
2898 check_cflags -Wpointer-arith
2899 check_cflags -Wredundant-decls
2900 check_cflags -Wno-pointer-sign
2901 check_cflags -Wcast-qual
2902 check_cflags -Wwrite-strings
2903 check_cflags -Wtype-limits
2904 check_cflags -Wundef
2905 check_cflags -Wmissing-prototypes
2906 enabled extra_warnings && check_cflags -Winline
2907
2908 # add some linker flags
2909 check_ldflags -Wl,--warn-common
2910 check_ldflags -Wl,--as-needed
2911 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'
2912 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2913
2914 echo "X{};" > $TMPV
2915 if test_ldflags -Wl,--version-script,$TMPV; then
2916     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2917     check_cc <<EOF && enable symver_asm_label
2918 void ff_foo(void) __asm__ ("av_foo@VERSION");
2919 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2920 EOF
2921     check_cc <<EOF && enable symver_gnu_asm
2922 __asm__(".symver ff_foo,av_foo@VERSION");
2923 void ff_foo(void) {}
2924 EOF
2925 fi
2926
2927 if enabled small; then
2928     add_cflags $size_cflags
2929     optimizations="small"
2930 elif enabled optimizations; then
2931     add_cflags $speed_cflags
2932 else
2933     add_cflags $noopt_cflags
2934 fi
2935 check_cflags -fno-math-errno
2936 check_cflags -fno-signed-zeros
2937
2938 if enabled icc; then
2939     # Just warnings, no remarks
2940     check_cflags -w1
2941     # -wd: Disable following warnings
2942     # 144, 167, 556: -Wno-pointer-sign
2943     # 10006: ignoring unknown option -fno-signed-zeros
2944     # 10148: ignoring unknown option -Wno-parentheses
2945     # 10156: ignoring option '-W'; no argument required
2946     check_cflags -wd144,167,556,10006,10148,10156
2947     # 11030: Warning unknown option --as-needed
2948     # 10156: ignoring option '-export'; no argument required
2949     check_ldflags -wd10156,11030
2950     # Allow to compile with optimizations
2951     check_ldflags -march=$cpu
2952     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2953     enable ebp_available
2954     if enabled x86_32; then
2955         test ${icc_version%%.*} -ge 11 && \
2956             check_cflags -falign-stack=maintain-16-byte || \
2957             disable aligned_stack
2958     fi
2959 elif enabled ccc; then
2960     # disable some annoying warnings
2961     add_cflags -msg_disable cvtu32to64
2962     add_cflags -msg_disable embedcomment
2963     add_cflags -msg_disable needconstext
2964     add_cflags -msg_disable nomainieee
2965     add_cflags -msg_disable ptrmismatch1
2966     add_cflags -msg_disable unreachcode
2967 elif enabled gcc; then
2968     check_cflags -fno-tree-vectorize
2969     check_cflags -Werror=implicit-function-declaration
2970     check_cflags -Werror=missing-prototypes
2971 elif enabled llvm_gcc; then
2972     check_cflags -mllvm -stack-alignment=16
2973 elif enabled clang; then
2974     check_cflags -mllvm -stack-alignment=16
2975     check_cflags -Qunused-arguments
2976 elif enabled armcc; then
2977     # 2523: use of inline assembler is deprecated
2978     add_cflags -W${armcc_opt},--diag_suppress=2523
2979     add_cflags -W${armcc_opt},--diag_suppress=1207
2980     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
2981     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
2982 elif enabled tms470; then
2983     add_cflags -pds=824 -pds=837
2984 fi
2985
2986 enabled_any $THREADS_LIST      && enable threads
2987
2988 check_deps $CONFIG_LIST       \
2989            $CONFIG_EXTRA      \
2990            $HAVE_LIST         \
2991            $DECODER_LIST      \
2992            $ENCODER_LIST      \
2993            $HWACCEL_LIST      \
2994            $PARSER_LIST       \
2995            $BSF_LIST          \
2996            $DEMUXER_LIST      \
2997            $MUXER_LIST        \
2998            $FILTER_LIST       \
2999            $INDEV_LIST        \
3000            $OUTDEV_LIST       \
3001            $PROTOCOL_LIST     \
3002            $ACODEC_TESTS      \
3003            $VCODEC_TESTS      \
3004            $LAVF_TESTS        \
3005            $LAVFI_TESTS       \
3006            $SEEK_TESTS        \
3007
3008 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3009
3010 echo "install prefix            $prefix"
3011 echo "source path               $source_path"
3012 echo "C compiler                $cc"
3013 echo "ARCH                      $arch ($cpu)"
3014 if test "$build_suffix" != ""; then
3015     echo "build suffix              $build_suffix"
3016 fi
3017 if test "$extra_version" != ""; then
3018     echo "version string suffix     $extra_version"
3019 fi
3020 echo "big-endian                ${bigendian-no}"
3021 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3022 if enabled x86; then
3023     echo "yasm                      ${yasm-no}"
3024     echo "MMX enabled               ${mmx-no}"
3025     echo "MMX2 enabled              ${mmx2-no}"
3026     echo "3DNow! enabled            ${amd3dnow-no}"
3027     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3028     echo "SSE enabled               ${sse-no}"
3029     echo "SSSE3 enabled             ${ssse3-no}"
3030     echo "CMOV enabled              ${cmov-no}"
3031     echo "CMOV is fast              ${fast_cmov-no}"
3032     echo "EBX available             ${ebx_available-no}"
3033     echo "EBP available             ${ebp_available-no}"
3034     echo "10 operands supported     ${ten_operands-no}"
3035 fi
3036 if enabled arm; then
3037     echo "ARMv5TE enabled           ${armv5te-no}"
3038     echo "ARMv6 enabled             ${armv6-no}"
3039     echo "ARMv6T2 enabled           ${armv6t2-no}"
3040     echo "ARM VFP enabled           ${armvfp-no}"
3041     echo "IWMMXT enabled            ${iwmmxt-no}"
3042     echo "NEON enabled              ${neon-no}"
3043 fi
3044 if enabled mips; then
3045     echo "MMI enabled               ${mmi-no}"
3046 fi
3047 if enabled ppc; then
3048     echo "AltiVec enabled           ${altivec-no}"
3049     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3050     echo "dcbzl available           ${dcbzl-no}"
3051 fi
3052 if enabled sparc; then
3053     echo "VIS enabled               ${vis-no}"
3054 fi
3055 echo "debug symbols             ${debug-no}"
3056 echo "strip symbols             ${stripping-no}"
3057 echo "optimizations             ${optimizations-no}"
3058 echo "static                    ${static-no}"
3059 echo "shared                    ${shared-no}"
3060 echo "postprocessing support    ${postproc-no}"
3061 echo "new filter support        ${avfilter-no}"
3062 echo "network support           ${network-no}"
3063 echo "threading support         ${thread_type-no}"
3064 echo "SDL support               ${sdl-no}"
3065 echo "Sun medialib support      ${mlib-no}"
3066 echo "AVISynth enabled          ${avisynth-no}"
3067 echo "frei0r enabled            ${frei0r-no}"
3068 echo "libdc1394 support         ${libdc1394-no}"
3069 echo "libdirac enabled          ${libdirac-no}"
3070 echo "libfaac enabled           ${libfaac-no}"
3071 echo "libgsm enabled            ${libgsm-no}"
3072 echo "libmp3lame enabled        ${libmp3lame-no}"
3073 echo "libnut enabled            ${libnut-no}"
3074 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3075 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3076 echo "libopencv support         ${libopencv-no}"
3077 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3078 echo "librtmp enabled           ${librtmp-no}"
3079 echo "libschroedinger enabled   ${libschroedinger-no}"
3080 echo "libspeex enabled          ${libspeex-no}"
3081 echo "libtheora enabled         ${libtheora-no}"
3082 echo "libvorbis enabled         ${libvorbis-no}"
3083 echo "libvpx enabled            ${libvpx-no}"
3084 echo "libx264 enabled           ${libx264-no}"
3085 echo "libxavs enabled           ${libxavs-no}"
3086 echo "libxvid enabled           ${libxvid-no}"
3087 echo "zlib enabled              ${zlib-no}"
3088 echo "bzlib enabled             ${bzlib-no}"
3089 echo
3090
3091 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3092     echo "Enabled ${type}s:"
3093     eval list=\$$(toupper $type)_LIST
3094     print_enabled '_*' $list | sort | pr -3 -t
3095     echo
3096 done
3097
3098 license="LGPL version 2.1 or later"
3099 if enabled nonfree; then
3100     license="nonfree and unredistributable"
3101 elif enabled gplv3; then
3102     license="GPL version 3 or later"
3103 elif enabled lgplv3; then
3104     license="LGPL version 3 or later"
3105 elif enabled gpl; then
3106     license="GPL version 2 or later"
3107 fi
3108
3109 echo "License: $license"
3110
3111 echo "Creating config.mak and config.h..."
3112
3113 # build tree in object directory if source path is different from current one
3114 if enabled source_path_used; then
3115     DIRS="
3116         doc
3117         libavcodec
3118         libavcodec/$arch
3119         libavcore
3120         libavdevice
3121         libavfilter
3122         libavfilter/$arch
3123         libavformat
3124         libavutil
3125         libavutil/$arch
3126         libpostproc
3127         libswscale
3128         libswscale/$arch
3129         tests
3130         tools
3131     "
3132     FILES="
3133         Makefile
3134         common.mak
3135         subdir.mak
3136         doc/texi2pod.pl
3137         libavcodec/Makefile
3138         libavcodec/${arch}/Makefile
3139         libavcore/Makefile
3140         libavdevice/Makefile
3141         libavfilter/Makefile
3142         libavfilter/${arch}/Makefile
3143         libavformat/Makefile
3144         libavutil/Makefile
3145         libpostproc/Makefile
3146         libswscale/Makefile
3147     "
3148     map 'mkdir -p $v' $DIRS;
3149     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3150 fi
3151
3152 enabled stripping || strip="echo skipping strip"
3153
3154 config_files="$TMPH config.mak"
3155
3156 cat > config.mak <<EOF
3157 # Automatically generated by configure - do not modify!
3158 ifndef FFMPEG_CONFIG_MAK
3159 FFMPEG_CONFIG_MAK=1
3160 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3161 prefix=$prefix
3162 LIBDIR=\$(DESTDIR)$libdir
3163 SHLIBDIR=\$(DESTDIR)$shlibdir
3164 INCDIR=\$(DESTDIR)$incdir
3165 BINDIR=\$(DESTDIR)$bindir
3166 DATADIR=\$(DESTDIR)$datadir
3167 MANDIR=\$(DESTDIR)$mandir
3168 SRC_PATH="$source_path"
3169 SRC_PATH_BARE=$source_path
3170 BUILD_ROOT="$PWD"
3171 CC_IDENT=$cc_ident
3172 ARCH=$arch
3173 CC=$cc
3174 AS=$as
3175 LD=$ld
3176 DEPCC=$dep_cc
3177 YASM=$yasmexe
3178 YASMDEP=$yasmexe
3179 AR=$ar
3180 RANLIB=$ranlib
3181 CP=cp -p
3182 LN_S=$ln_s
3183 STRIP=$strip
3184 CPPFLAGS=$CPPFLAGS
3185 CFLAGS=$CFLAGS
3186 ASFLAGS=$ASFLAGS
3187 CC_O=$CC_O
3188 LDFLAGS=$LDFLAGS
3189 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3190 SHFLAGS=$SHFLAGS
3191 YASMFLAGS=$YASMFLAGS
3192 BUILDSUF=$build_suffix
3193 FULLNAME=$FULLNAME
3194 LIBPREF=$LIBPREF
3195 LIBSUF=$LIBSUF
3196 LIBNAME=$LIBNAME
3197 SLIBPREF=$SLIBPREF
3198 SLIBSUF=$SLIBSUF
3199 EXESUF=$EXESUF
3200 EXTRA_VERSION=$extra_version
3201 DEPFLAGS=$DEPFLAGS
3202 CCDEP=$CCDEP
3203 ASDEP=$ASDEP
3204 CC_DEPFLAGS=$CC_DEPFLAGS
3205 AS_DEPFLAGS=$AS_DEPFLAGS
3206 HOSTCC=$host_cc
3207 HOSTCFLAGS=$host_cflags
3208 HOSTEXESUF=$HOSTEXESUF
3209 HOSTLDFLAGS=$host_ldflags
3210 HOSTLIBS=$host_libs
3211 TARGET_EXEC=$target_exec
3212 TARGET_PATH=$target_path
3213 SDL_LIBS=$sdl_libs
3214 SDL_CFLAGS=$sdl_cflags
3215 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3216 EXTRALIBS=$extralibs
3217 INSTALL=install
3218 LIBTARGET=${LIBTARGET}
3219 SLIBNAME=${SLIBNAME}
3220 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3221 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3222 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3223 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3224 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3225 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3226 SAMPLES=$samples
3227 EOF
3228
3229 get_version(){
3230     name=$1
3231     file=$source_path/$2
3232     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3233     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3234     lcname=$(tolower $name)
3235     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3236     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3237 }
3238
3239 get_version LIBSWSCALE  libswscale/swscale.h
3240 get_version LIBPOSTPROC libpostproc/postprocess.h
3241 get_version LIBAVCODEC  libavcodec/avcodec.h
3242 get_version LIBAVCORE   libavcore/avcore.h
3243 get_version LIBAVDEVICE libavdevice/avdevice.h
3244 get_version LIBAVFORMAT libavformat/avformat.h
3245 get_version LIBAVUTIL   libavutil/avutil.h
3246 get_version LIBAVFILTER libavfilter/avfilter.h
3247
3248 cat > $TMPH <<EOF
3249 /* Automatically generated by configure - do not modify! */
3250 #ifndef FFMPEG_CONFIG_H
3251 #define FFMPEG_CONFIG_H
3252 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3253 #define FFMPEG_LICENSE "$(c_escape $license)"
3254 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3255 #define CC_TYPE "$cc_type"
3256 #define CC_VERSION $cc_version
3257 #define restrict $_restrict
3258 #define EXTERN_PREFIX "${extern_prefix}"
3259 #define EXTERN_ASM ${extern_prefix}
3260 #define SLIBSUF "$SLIBSUF"
3261 EOF
3262
3263 test -n "$malloc_prefix" &&
3264     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3265
3266 if enabled small || disabled optimizations; then
3267     echo "#undef  av_always_inline"  >> $TMPH
3268     if enabled small; then
3269         echo "#define av_always_inline inline"  >> $TMPH
3270     else
3271         echo "#define av_always_inline av_unused"  >> $TMPH
3272     fi
3273 fi
3274
3275 if enabled yasm; then
3276     append config_files $TMPASM
3277     printf '' >$TMPASM
3278 fi
3279
3280 print_config ARCH_   "$config_files" $ARCH_LIST
3281 print_config HAVE_   "$config_files" $HAVE_LIST
3282 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3283                                      $CONFIG_EXTRA      \
3284                                      $DECODER_LIST      \
3285                                      $ENCODER_LIST      \
3286                                      $HWACCEL_LIST      \
3287                                      $PARSER_LIST       \
3288                                      $BSF_LIST          \
3289                                      $DEMUXER_LIST      \
3290                                      $MUXER_LIST        \
3291                                      $FILTER_LIST       \
3292                                      $PROTOCOL_LIST     \
3293                                      $INDEV_LIST        \
3294                                      $OUTDEV_LIST       \
3295
3296 cat >>config.mak <<EOF
3297 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3298 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3299 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3300 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3301 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3302 EOF
3303
3304 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3305 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3306
3307 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3308 cp_if_changed $TMPH config.h
3309 touch .config
3310
3311 enabled yasm && cp_if_changed $TMPASM config.asm
3312
3313 cat > $TMPH <<EOF
3314 /* Generated by ffconf */
3315 #ifndef AVUTIL_AVCONFIG_H
3316 #define AVUTIL_AVCONFIG_H
3317 EOF
3318
3319 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3320
3321 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3322
3323 cp_if_changed $TMPH libavutil/avconfig.h
3324
3325 test -n "$WARNINGS" && printf "\n$WARNINGS"
3326
3327 # build pkg-config files
3328
3329 pkgconfig_generate(){
3330 name=$1
3331 shortname=${name#lib}${build_suffix}
3332 comment=$2
3333 version=$3
3334 libs=$4
3335 requires=$5
3336 enabled ${name#lib} || return 0
3337 cat <<EOF > $name/$name.pc
3338 prefix=$prefix
3339 exec_prefix=\${prefix}
3340 libdir=$libdir
3341 includedir=$incdir
3342
3343 Name: $name
3344 Description: $comment
3345 Version: $version
3346 Requires: $(enabled shared || echo $requires)
3347 Requires.private: $(enabled shared && echo $requires)
3348 Conflicts:
3349 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3350 Libs.private: $(enabled shared && echo $libs)
3351 Cflags: -I\${includedir}
3352 EOF
3353 cat <<EOF > $name/$name-uninstalled.pc
3354 prefix=
3355 exec_prefix=
3356 libdir=\${pcfiledir}
3357 includedir=${source_path}
3358
3359 Name: $name
3360 Description: $comment
3361 Version: $version
3362 Requires: $requires
3363 Conflicts:
3364 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3365 Cflags: -I\${includedir}
3366 EOF
3367 }
3368
3369 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3370 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3371 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3372 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3373 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3374 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3375 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3376 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"