configure: properly check for mingw-w64 through installed headers.
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --enable-postproc        enable GPLed postprocessing support [no]
92   --disable-avfilter       disable video filter support [no]
93   --enable-avfilter-lavf   video filters dependent on avformat [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-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --disable-vaapi          disable VAAPI code
111   --disable-vdpau          disable VDPAU code
112   --disable-dxva2          disable DXVA2 code
113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
116   --disable-everything     disable all components listed below
117   --disable-encoder=NAME   disable encoder NAME
118   --enable-encoder=NAME    enable encoder NAME
119   --disable-encoders       disable all encoders
120   --disable-decoder=NAME   disable decoder NAME
121   --enable-decoder=NAME    enable decoder NAME
122   --disable-decoders       disable all decoders
123   --disable-hwaccel=NAME   disable hwaccel NAME
124   --enable-hwaccel=NAME    enable hwaccel NAME
125   --disable-hwaccels       disable all hwaccels
126   --disable-muxer=NAME     disable muxer NAME
127   --enable-muxer=NAME      enable muxer NAME
128   --disable-muxers         disable all muxers
129   --disable-demuxer=NAME   disable demuxer NAME
130   --enable-demuxer=NAME    enable demuxer NAME
131   --disable-demuxers       disable all demuxers
132   --enable-parser=NAME     enable parser NAME
133   --disable-parser=NAME    disable parser NAME
134   --disable-parsers        disable all parsers
135   --enable-bsf=NAME        enable bitstream filter NAME
136   --disable-bsf=NAME       disable bitstream filter NAME
137   --disable-bsfs           disable all bitstream filters
138   --enable-protocol=NAME   enable protocol NAME
139   --disable-protocol=NAME  disable protocol NAME
140   --disable-protocols      disable all protocols
141   --disable-indev=NAME     disable input device NAME
142   --disable-outdev=NAME    disable output device NAME
143   --disable-indevs         disable input devices
144   --disable-outdevs        disable output devices
145   --disable-devices        disable all devices
146   --enable-filter=NAME     enable filter NAME
147   --disable-filter=NAME    disable filter NAME
148   --disable-filters        disable all filters
149   --list-decoders          show all available decoders
150   --list-encoders          show all available encoders
151   --list-hwaccels          show all available hardware accelerators
152   --list-muxers            show all available muxers
153   --list-demuxers          show all available demuxers
154   --list-parsers           show all available parsers
155   --list-protocols         show all available protocols
156   --list-bsfs              show all available bitstream filters
157   --list-indevs            show all available input devices
158   --list-outdevs           show all available output devices
159   --list-filters           show all available filters
160
161 External library support:
162   --enable-avisynth        enable reading of AVISynth script files [no]
163   --enable-bzlib           enable bzlib [autodetect]
164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
166   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
167                            and libraw1394 [no]
168   --enable-libdirac        enable Dirac support via libdirac [no]
169   --enable-libfaac         enable FAAC support via libfaac [no]
170   --enable-libgsm          enable GSM support via libgsm [no]
171   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
172   --enable-libnut          enable NUT (de)muxing via libnut,
173                            native (de)muxer exists [no]
174   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
175   --enable-librtmp         enable RTMP[E] support via librtmp [no]
176   --enable-libschroedinger enable Dirac support via libschroedinger [no]
177   --enable-libspeex        enable Speex decoding via libspeex [no]
178   --enable-libtheora       enable Theora encoding via libtheora [no]
179   --enable-libvorbis       enable Vorbis encoding via libvorbis,
180                            native implementation exists [no]
181   --enable-libvpx          enable VP8 support via libvpx [no]
182   --enable-libx264         enable H.264 encoding via x264 [no]
183   --enable-libxvid         enable Xvid encoding via xvidcore,
184                            native MPEG-4/Xvid encoder exists [no]
185   --enable-mlib            enable Sun medialib [no]
186   --enable-zlib            enable zlib [autodetect]
187
188 Advanced options (experts only):
189   --source-path=PATH       path to source code [$source_path]
190   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
191   --enable-cross-compile   assume a cross-compiler is used
192   --sysroot=PATH           root of cross-build tree
193   --sysinclude=PATH        location of cross-build system headers
194   --target-os=OS           compiler targets OS [$target_os]
195   --target-exec=CMD        command to run executables on target
196   --target-path=DIR        path to view of build directory on target
197   --nm=NM                  use nm tool
198   --ar=AR                  use archive tool AR [$ar_default]
199   --as=AS                  use assembler AS [$as_default]
200   --cc=CC                  use C compiler CC [$cc_default]
201   --ld=LD                  use linker LD
202   --host-cc=HOSTCC         use host C compiler HOSTCC
203   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
204   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
205   --host-libs=HLIBS        use libs HLIBS when linking for host
206   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
207   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
208   --extra-libs=ELIBS       add ELIBS [$ELIBS]
209   --extra-version=STRING   version string suffix []
210   --build-suffix=SUFFIX    library name suffix []
211   --arch=ARCH              select architecture [$arch]
212   --cpu=CPU                select the minimum required CPU (affects
213                            instruction selection, may crash on older CPUs)
214   --disable-asm            disable all assembler optimizations
215   --disable-altivec        disable AltiVec optimizations
216   --disable-amd3dnow       disable 3DNow! optimizations
217   --disable-amd3dnowext    disable 3DNow! extended optimizations
218   --disable-mmx            disable MMX optimizations
219   --disable-mmx2           disable MMX2 optimizations
220   --disable-sse            disable SSE optimizations
221   --disable-ssse3          disable SSSE3 optimizations
222   --disable-armv5te        disable armv5te optimizations
223   --disable-armv6          disable armv6 optimizations
224   --disable-armv6t2        disable armv6t2 optimizations
225   --disable-armvfp         disable ARM VFP optimizations
226   --disable-iwmmxt         disable iwmmxt optimizations
227   --disable-mmi            disable MMI optimizations
228   --disable-neon           disable neon optimizations
229   --disable-vis            disable VIS optimizations
230   --disable-yasm           disable use of yasm assembler
231   --enable-pic             build position-independent code
232   --malloc-prefix=PFX      prefix malloc and related names with PFX
233   --enable-sram            allow use of on-chip SRAM
234
235 Developer options (useful when working on FFmpeg itself):
236   --disable-debug          disable debugging symbols
237   --enable-debug=LEVEL     set the debug level [$debuglevel]
238   --disable-optimizations  disable compiler optimizations
239   --enable-extra-warnings  enable more compiler warnings
240   --disable-stripping      disable stripping of executables and shared libraries
241   --samples=PATH           location of test samples for FATE
242
243 NOTE: Object files are built at the place where configure is launched.
244 EOF
245   exit 0
246 }
247
248 quotes='""'
249
250 log(){
251     echo "$@" >> $logfile
252 }
253
254 log_file(){
255     log BEGIN $1
256     pr -n -t $1 >> $logfile
257     log END $1
258 }
259
260 echolog(){
261     log "$@"
262     echo "$@"
263 }
264
265 warn(){
266     log "WARNING: $*"
267     WARNINGS="${WARNINGS}WARNING: $*\n"
268 }
269
270 die(){
271     echolog "$@"
272     cat <<EOF
273
274 If you think configure made a mistake, make sure you are using the latest
275 version from SVN.  If the latest version fails, report the problem to the
276 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
277 EOF
278     if disabled logging; then
279         cat <<EOF
280 Rerun configure with logging enabled (do not use --disable-logging), and
281 include the log this produces with your report.
282 EOF
283     else
284 cat <<EOF
285 Include the log file "$logfile" produced by configure as this will help
286 solving the problem.
287 EOF
288     fi
289     exit 1
290 }
291
292 # Avoid locale weirdness, besides we really just want to translate ASCII.
293 toupper(){
294     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
295 }
296
297 tolower(){
298     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
299 }
300
301 c_escape(){
302     echo "$*" | sed 's/["\\]/\\\0/g'
303 }
304
305 sh_quote(){
306     v=$(echo "$1" | sed "s/'/'\\\\''/g")
307     test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
308     echo "$v"
309 }
310
311 filter(){
312     pat=$1
313     shift
314     for v; do
315         eval "case $v in $pat) echo $v ;; esac"
316     done
317 }
318
319 map(){
320     m=$1
321     shift
322     for v; do eval $m; done
323 }
324
325 set_all(){
326     value=$1
327     shift
328     for var in $*; do
329         eval $var=$value
330     done
331 }
332
333 set_weak(){
334     value=$1
335     shift
336     for var; do
337         eval : \${$var:=$value}
338     done
339 }
340
341 pushvar(){
342     for var in $*; do
343         eval level=\${${var}_level:=0}
344         eval ${var}_${level}="\$$var"
345         eval ${var}_level=$(($level+1))
346     done
347 }
348
349 popvar(){
350     for var in $*; do
351         eval level=\${${var}_level:-0}
352         test $level = 0 && continue
353         eval level=$(($level-1))
354         eval $var="\${${var}_${level}}"
355         eval ${var}_level=$level
356         eval unset ${var}_${level}
357     done
358 }
359
360 enable(){
361     set_all yes $*
362 }
363
364 disable(){
365     set_all no $*
366 }
367
368 enable_weak(){
369     set_weak yes $*
370 }
371
372 disable_weak(){
373     set_weak no $*
374 }
375
376 enable_safe(){
377     for var; do
378         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
379     done
380 }
381
382 disable_safe(){
383     for var; do
384         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
385     done
386 }
387
388 do_enable_deep(){
389     for var; do
390         enabled $var && continue
391         eval sel="\$${var}_select"
392         eval sgs="\$${var}_suggest"
393         pushvar var sgs
394         enable_deep $sel
395         popvar sgs
396         enable_deep_weak $sgs
397         popvar var
398     done
399 }
400
401 enable_deep(){
402     do_enable_deep $*
403     enable $*
404 }
405
406 enable_deep_weak(){
407     do_enable_deep $*
408     enable_weak $*
409 }
410
411 enabled(){
412     test "${1#!}" = "$1" && op== || op=!=
413     eval test "x\$${1#!}" $op "xyes"
414 }
415
416 disabled(){
417     test "${1#!}" = "$1" && op== || op=!=
418     eval test "x\$${1#!}" $op "xno"
419 }
420
421 enabled_all(){
422     for opt; do
423         enabled $opt || return 1
424     done
425 }
426
427 disabled_all(){
428     for opt; do
429         disabled $opt || return 1
430     done
431 }
432
433 enabled_any(){
434     for opt; do
435         enabled $opt && return 0
436     done
437 }
438
439 disabled_any(){
440     for opt; do
441         disabled $opt && return 0
442     done
443     return 1
444 }
445
446 set_default(){
447     for opt; do
448         eval : \${$opt:=\$${opt}_default}
449     done
450 }
451
452 is_in(){
453     value=$1
454     shift
455     for var in $*; do
456         [ $var = $value ] && return 0
457     done
458     return 1
459 }
460
461 check_deps(){
462     for cfg; do
463         cfg="${cfg#!}"
464         enabled ${cfg}_checking && die "Circular dependency for $cfg."
465         disabled ${cfg}_checking && continue
466         enable ${cfg}_checking
467
468         eval dep_all="\$${cfg}_deps"
469         eval dep_any="\$${cfg}_deps_any"
470         eval dep_sel="\$${cfg}_select"
471         eval dep_sgs="\$${cfg}_suggest"
472         eval dep_ifa="\$${cfg}_if"
473         eval dep_ifn="\$${cfg}_if_any"
474
475         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
476         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
477         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
478
479         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
480         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
481         enabled_all  $dep_all || disable $cfg
482         enabled_any  $dep_any || disable $cfg
483         disabled_any $dep_sel && disable $cfg
484
485         if enabled $cfg; then
486             eval dep_extralibs="\$${cfg}_extralibs"
487             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
488             enable_deep $dep_sel
489             enable_deep_weak $dep_sgs
490         fi
491
492         disable ${cfg}_checking
493     done
494 }
495
496 print_config(){
497     pfx=$1
498     header=$2
499     makefile=$3
500     shift 3
501     for cfg; do
502         ucname="$(toupper $cfg)"
503         if enabled $cfg; then
504             echo "#define ${pfx}${ucname} 1" >> $header
505             echo "${pfx}${ucname}=yes" >> $makefile
506         else
507             echo "#define ${pfx}${ucname} 0" >> $header
508             echo "!${pfx}${ucname}=yes" >> $makefile
509         fi
510     done
511 }
512
513 print_enabled(){
514     test "$1" = -n && end=" " && shift || end="\n"
515     suf=$1
516     shift
517     for v; do
518         enabled $v && printf "%s$end" ${v%$suf};
519     done
520 }
521
522 append(){
523     var=$1
524     shift
525     eval "$var=\"\$$var $*\""
526 }
527
528 prepend(){
529     var=$1
530     shift
531     eval "$var=\"$* \$$var\""
532 }
533
534 add_cppflags(){
535     append CPPFLAGS $($filter_cppflags "$@")
536 }
537
538 add_cflags(){
539     append CFLAGS $($filter_cflags "$@")
540 }
541
542 add_asflags(){
543     append ASFLAGS $($filter_asflags "$@")
544 }
545
546 add_ldflags(){
547     append LDFLAGS "$@"
548 }
549
550 add_extralibs(){
551     prepend extralibs "$@"
552 }
553
554 check_cmd(){
555     log "$@"
556     "$@" >> $logfile 2>&1
557 }
558
559 check_cc(){
560     log check_cc "$@"
561     cat > $TMPC
562     log_file $TMPC
563     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
564 }
565
566 check_cpp(){
567     log check_cpp "$@"
568     cat > $TMPC
569     log_file $TMPC
570     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
571 }
572
573 check_as(){
574     log check_as "$@"
575     cat > $TMPC
576     log_file $TMPC
577     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
578 }
579
580 check_asm(){
581     log check_asm "$@"
582     name="$1"
583     code="$2"
584     shift 2
585     disable $name
586     check_as "$@" <<EOF && enable $name
587 void foo(void){ __asm__ volatile($code); }
588 EOF
589 }
590
591 check_yasm(){
592     log check_yasm "$@"
593     echo "$1" > $TMPS
594     log_file $TMPS
595     shift 1
596     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
597 }
598
599 check_ld(){
600     log check_ld "$@"
601     flags=''
602     libs=''
603     for f; do
604         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
605     done
606     check_cc $($filter_cflags $flags) || return
607     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
608 }
609
610 check_cppflags(){
611     log check_cppflags "$@"
612     set -- $($filter_cppflags "$@")
613     check_cc "$@" <<EOF && append CPPFLAGS "$@"
614 int x;
615 EOF
616 }
617
618 check_cflags(){
619     log check_cflags "$@"
620     set -- $($filter_cflags "$@")
621     check_cc "$@" <<EOF && append CFLAGS "$@"
622 int x;
623 EOF
624 }
625
626 test_ldflags(){
627     log test_ldflags "$@"
628     check_ld "$@" <<EOF
629 int main(void){ return 0; }
630 EOF
631 }
632
633 check_ldflags(){
634     log check_ldflags "$@"
635     test_ldflags "$@" && add_ldflags "$@"
636 }
637
638 check_header(){
639     log check_header "$@"
640     header=$1
641     shift
642     disable_safe $header
643     check_cpp "$@" <<EOF && enable_safe $header
644 #include <$header>
645 int x;
646 EOF
647 }
648
649 check_func(){
650     log check_func "$@"
651     func=$1
652     shift
653     disable $func
654     check_ld "$@" <<EOF && enable $func
655 extern int $func();
656 int main(void){ $func(); }
657 EOF
658 }
659
660 check_mathfunc(){
661     log check_mathfunc "$@"
662     func=$1
663     shift
664     disable $func
665     check_ld "$@" <<EOF && enable $func
666 #include <math.h>
667 float foo(float f) { return $func(f); }
668 int main(void){ return 0; }
669 EOF
670 }
671
672 check_func_headers(){
673     log check_func_headers "$@"
674     headers=$1
675     func=$2
676     shift 2
677     disable $func
678     incs=""
679     for hdr in $headers; do
680         incs="$incs
681 #include <$hdr>"
682     done
683     check_ld "$@" <<EOF && enable $func && enable_safe $headers
684 $incs
685 int main(int argc, char **argv){
686     return (long) $func;
687 }
688 EOF
689 }
690
691 check_cpp_condition(){
692     log check_cpp_condition "$@"
693     header=$1
694     condition=$2
695     shift 2
696     check_cpp $($filter_cppflags "$@") <<EOF
697 #include <$header>
698 #if !($condition)
699 #error "unsatisfied condition: $condition"
700 #endif
701 EOF
702 }
703
704 check_lib(){
705     log check_lib "$@"
706     header="$1"
707     func="$2"
708     shift 2
709     check_header $header && check_func $func "$@" && add_extralibs "$@"
710 }
711
712 check_lib2(){
713     log check_lib2 "$@"
714     headers="$1"
715     func="$2"
716     shift 2
717     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
718 }
719
720 check_exec(){
721     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
722 }
723
724 check_exec_crash(){
725     code=$(cat)
726
727     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
728     # are safe but may not be available everywhere.  Thus we use
729     # raise(SIGTERM) instead.  The check is run in a subshell so we
730     # can redirect the "Terminated" message from the shell.  SIGBUS
731     # is not defined by standard C so it is used conditionally.
732
733     (check_exec "$@") >> $logfile 2>&1 <<EOF
734 #include <signal.h>
735 static void sighandler(int sig){
736     raise(SIGTERM);
737 }
738 int main(void){
739     signal(SIGILL, sighandler);
740     signal(SIGFPE, sighandler);
741     signal(SIGSEGV, sighandler);
742 #ifdef SIGBUS
743     signal(SIGBUS, sighandler);
744 #endif
745     { $code }
746 }
747 EOF
748 }
749
750 check_type(){
751     log check_type "$@"
752     headers=$1
753     type=$2
754     shift 2
755     disable_safe "$type"
756     incs=""
757     for hdr in $headers; do
758         incs="$incs
759 #include <$hdr>"
760     done
761     check_cc "$@" <<EOF && enable_safe "$type"
762 $incs
763 $type v;
764 EOF
765 }
766
767 check_struct(){
768     log check_type "$@"
769     headers=$1
770     struct=$2
771     member=$3
772     shift 3
773     disable_safe "${struct}_${member}"
774     incs=""
775     for hdr in $headers; do
776         incs="$incs
777 #include <$hdr>"
778     done
779     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
780 $incs
781 const void *p = &(($struct *)0)->$member;
782 EOF
783 }
784
785 require(){
786     name="$1"
787     header="$2"
788     func="$3"
789     shift 3
790     check_lib $header $func "$@" || die "ERROR: $name not found"
791 }
792
793 require2(){
794     name="$1"
795     headers="$2"
796     func="$3"
797     shift 3
798     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
799 }
800
801 check_host_cc(){
802     log check_host_cc "$@"
803     cat > $TMPC
804     log_file $TMPC
805     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
806 }
807
808 check_host_cflags(){
809     log check_host_cflags "$@"
810     check_host_cc "$@" <<EOF && append host_cflags "$@"
811 int x;
812 EOF
813 }
814
815 apply(){
816     file=$1
817     shift
818     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
819 }
820
821 cp_if_changed(){
822     cmp -s "$1" "$2" &&
823         echo "$2 is unchanged" ||
824         cp -f "$1" "$2"
825 }
826
827 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
828 # system-dependent things.
829
830 COMPONENT_LIST="
831     bsfs
832     decoders
833     demuxers
834     encoders
835     filters
836     hwaccels
837     indevs
838     muxers
839     outdevs
840     parsers
841     protocols
842 "
843
844 CONFIG_LIST="
845     $COMPONENT_LIST
846     aandct
847     avcodec
848     avdevice
849     avfilter
850     avfilter_lavf
851     avformat
852     avisynth
853     bzlib
854     dct
855     doc
856     dwt
857     dxva2
858     fastdiv
859     ffmpeg
860     ffplay
861     ffprobe
862     ffserver
863     fft
864     golomb
865     gpl
866     gray
867     h264dsp
868     hardcoded_tables
869     libdc1394
870     libdirac
871     libfaac
872     libgsm
873     libmp3lame
874     libnut
875     libopencore_amrnb
876     libopencore_amrwb
877     libopenjpeg
878     librtmp
879     libschroedinger
880     libspeex
881     libtheora
882     libvorbis
883     libvpx
884     libx264
885     libxvid
886     lpc
887     lsp
888     mdct
889     memalign_hack
890     mlib
891     mpegaudio_hp
892     network
893     nonfree
894     pic
895     postproc
896     rdft
897     runtime_cpudetect
898     shared
899     small
900     sram
901     static
902     swscale
903     swscale_alpha
904     vaapi
905     vdpau
906     version3
907     x11grab
908     zlib
909 "
910
911 THREADS_LIST='
912     pthreads
913     w32threads
914 '
915
916 ARCH_LIST='
917     alpha
918     arm
919     avr32
920     avr32_ap
921     avr32_uc
922     bfin
923     ia64
924     m68k
925     mips
926     mips64
927     parisc
928     ppc
929     ppc64
930     s390
931     sh4
932     sparc
933     sparc64
934     tomi
935     x86
936     x86_32
937     x86_64
938 '
939
940 ARCH_EXT_LIST='
941     altivec
942     amd3dnow
943     amd3dnowext
944     armv5te
945     armv6
946     armv6t2
947     armvfp
948     iwmmxt
949     mmi
950     mmx
951     mmx2
952     neon
953     ppc4xx
954     sse
955     ssse3
956     vis
957 '
958
959 HAVE_LIST_PUB='
960     bigendian
961 '
962
963 HAVE_LIST="
964     $ARCH_EXT_LIST
965     $HAVE_LIST_PUB
966     $THREADS_LIST
967     alsa_asoundlib_h
968     altivec_h
969     arpa_inet_h
970     attribute_may_alias
971     attribute_packed
972     bswap
973     closesocket
974     cmov
975     conio_h
976     dcbzl
977     dev_bktr_ioctl_bt848_h
978     dev_bktr_ioctl_meteor_h
979     dev_ic_bt8xx_h
980     dev_video_meteor_ioctl_meteor_h
981     dev_video_bktr_ioctl_bt848_h
982     dlfcn_h
983     dlopen
984     dos_paths
985     ebp_available
986     ebx_available
987     exp2
988     exp2f
989     fast_64bit
990     fast_clz
991     fast_cmov
992     fast_unaligned
993     fcntl
994     fork
995     getaddrinfo
996     gethrtime
997     GetProcessMemoryInfo
998     GetProcessTimes
999     getrusage
1000     gnu_as
1001     struct_rusage_ru_maxrss
1002     ibm_asm
1003     inet_aton
1004     inline_asm
1005     isatty
1006     ldbrx
1007     libdc1394_1
1008     libdc1394_2
1009     llrint
1010     llrintf
1011     local_aligned_16
1012     local_aligned_8
1013     log2
1014     log2f
1015     loongson
1016     lrint
1017     lrintf
1018     lzo1x_999_compress
1019     machine_ioctl_bt848_h
1020     machine_ioctl_meteor_h
1021     malloc_h
1022     memalign
1023     mkstemp
1024     pld
1025     posix_memalign
1026     round
1027     roundf
1028     sdl
1029     sdl_video_size
1030     setmode
1031     socklen_t
1032     soundcard_h
1033     poll_h
1034     setrlimit
1035     strerror_r
1036     struct_addrinfo
1037     struct_ipv6_mreq
1038     struct_sockaddr_in6
1039     struct_sockaddr_sa_len
1040     struct_sockaddr_storage
1041     symver
1042     symver_gnu_asm
1043     symver_asm_label
1044     sys_mman_h
1045     sys_resource_h
1046     sys_select_h
1047     sys_soundcard_h
1048     sys_videoio_h
1049     ten_operands
1050     termios_h
1051     threads
1052     truncf
1053     vfp_args
1054     VirtualAlloc
1055     winsock2_h
1056     xform_asm
1057     yasm
1058 "
1059
1060 # options emitted with CONFIG_ prefix but not available on command line
1061 CONFIG_EXTRA="
1062     avutil
1063     gplv3
1064     lgplv3
1065 "
1066
1067 CMDLINE_SELECT="
1068     $ARCH_EXT_LIST
1069     $CONFIG_LIST
1070     $THREADS_LIST
1071     asm
1072     cross_compile
1073     debug
1074     extra_warnings
1075     logging
1076     optimizations
1077     stripping
1078     yasm
1079 "
1080
1081 PATHS_LIST='
1082     bindir
1083     datadir
1084     incdir
1085     libdir
1086     mandir
1087     prefix
1088     shlibdir
1089 '
1090
1091 CMDLINE_SET="
1092     $PATHS_LIST
1093     ar
1094     arch
1095     as
1096     build_suffix
1097     cc
1098     cpu
1099     cross_prefix
1100     dep_cc
1101     extra_version
1102     host_cc
1103     host_cflags
1104     host_ldflags
1105     host_libs
1106     host_os
1107     ld
1108     logfile
1109     malloc_prefix
1110     nm
1111     samples
1112     source_path
1113     strip
1114     sysinclude
1115     sysroot
1116     target_exec
1117     target_os
1118     target_path
1119 "
1120
1121 CMDLINE_APPEND="
1122     extra_cflags
1123 "
1124
1125 # code dependency declarations
1126
1127 # architecture extensions
1128
1129 armv5te_deps="arm"
1130 armv6_deps="arm"
1131 armv6t2_deps="arm"
1132 armvfp_deps="arm"
1133 iwmmxt_deps="arm"
1134 neon_deps="arm"
1135
1136 mmi_deps="mips"
1137
1138 altivec_deps="ppc"
1139 ppc4xx_deps="ppc"
1140
1141 vis_deps="sparc"
1142
1143 x86_64_suggest="cmov fast_cmov"
1144 amd3dnow_deps="mmx"
1145 amd3dnowext_deps="amd3dnow"
1146 mmx_deps="x86"
1147 mmx2_deps="mmx"
1148 sse_deps="mmx"
1149 ssse3_deps="sse"
1150
1151 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1152 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1153 fast_unaligned_if_any="armv6 ppc x86"
1154
1155 need_memalign="altivec neon sse"
1156 inline_asm_deps="!tms470"
1157
1158 symver_if_any="symver_asm_label symver_gnu_asm"
1159
1160 # subsystems
1161 mdct_select="fft"
1162 rdft_select="fft"
1163
1164 # decoders / encoders / hardware accelerators
1165 aac_decoder_select="mdct rdft aac_parser"
1166 aac_encoder_select="mdct"
1167 ac3_decoder_select="mdct ac3_parser"
1168 alac_encoder_select="lpc"
1169 amrnb_decoder_select="lsp"
1170 atrac1_decoder_select="mdct"
1171 atrac3_decoder_select="mdct"
1172 binkaudio_dct_decoder_select="mdct rdft dct"
1173 binkaudio_rdft_decoder_select="mdct rdft"
1174 cavs_decoder_select="golomb"
1175 cook_decoder_select="mdct"
1176 cscd_decoder_suggest="zlib"
1177 dca_decoder_select="mdct"
1178 dnxhd_encoder_select="aandct"
1179 dxa_decoder_select="zlib"
1180 eac3_decoder_select="ac3_decoder"
1181 eamad_decoder_select="aandct"
1182 eatgq_decoder_select="aandct"
1183 eatqi_decoder_select="aandct"
1184 ffv1_decoder_select="golomb"
1185 flac_decoder_select="golomb"
1186 flac_encoder_select="golomb lpc"
1187 flashsv_decoder_select="zlib"
1188 flashsv_encoder_select="zlib"
1189 flv_decoder_select="h263_decoder"
1190 flv_encoder_select="h263_encoder"
1191 h261_encoder_select="aandct"
1192 h263_decoder_select="h263_parser"
1193 h263_encoder_select="aandct"
1194 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1195 h263i_decoder_select="h263_decoder"
1196 h263p_encoder_select="h263_encoder"
1197 h264_decoder_select="golomb h264dsp"
1198 h264_dxva2_hwaccel_deps="dxva2api_h"
1199 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1200 h264_vaapi_hwaccel_select="vaapi"
1201 h264_vdpau_decoder_select="vdpau h264_decoder"
1202 imc_decoder_select="fft mdct"
1203 jpegls_decoder_select="golomb"
1204 jpegls_encoder_select="golomb"
1205 ljpeg_encoder_select="aandct"
1206 loco_decoder_select="golomb"
1207 mjpeg_encoder_select="aandct"
1208 mlp_decoder_select="mlp_parser"
1209 mp1float_decoder_select="dct"
1210 mp2float_decoder_select="dct"
1211 mp3adufloat_decoder_select="dct"
1212 mp3float_decoder_select="dct"
1213 mp3on4float_decoder_select="dct"
1214 mpeg1video_encoder_select="aandct"
1215 mpeg2video_encoder_select="aandct"
1216 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1217 mpeg4_encoder_select="h263_encoder"
1218 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1219 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1220 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1221 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1222 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1223 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1224 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1225 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1226 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1227 msmpeg4v1_decoder_select="h263_decoder"
1228 msmpeg4v1_encoder_select="h263_encoder"
1229 msmpeg4v2_decoder_select="h263_decoder"
1230 msmpeg4v2_encoder_select="h263_encoder"
1231 msmpeg4v3_decoder_select="h263_decoder"
1232 msmpeg4v3_encoder_select="h263_encoder"
1233 nellymoser_decoder_select="mdct"
1234 nellymoser_encoder_select="mdct"
1235 png_decoder_select="zlib"
1236 png_encoder_select="zlib"
1237 qcelp_decoder_select="lsp"
1238 qdm2_decoder_select="mdct rdft"
1239 ra_144_encoder_select="lpc"
1240 rv10_decoder_select="h263_decoder"
1241 rv10_encoder_select="h263_encoder"
1242 rv20_decoder_select="h263_decoder"
1243 rv20_encoder_select="h263_encoder"
1244 rv30_decoder_select="golomb h264dsp"
1245 rv40_decoder_select="golomb h264dsp"
1246 shorten_decoder_select="golomb"
1247 sipr_decoder_select="lsp"
1248 snow_decoder_select="dwt"
1249 snow_encoder_select="aandct dwt"
1250 sonic_decoder_select="golomb"
1251 sonic_encoder_select="golomb"
1252 sonic_ls_encoder_select="golomb"
1253 svq1_encoder_select="aandct"
1254 svq3_decoder_select="golomb h264dsp"
1255 svq3_decoder_suggest="zlib"
1256 theora_decoder_select="vp3_decoder"
1257 tiff_decoder_suggest="zlib"
1258 tiff_encoder_suggest="zlib"
1259 truehd_decoder_select="mlp_decoder"
1260 tscc_decoder_select="zlib"
1261 twinvq_decoder_select="mdct lsp"
1262 vc1_decoder_select="h263_decoder"
1263 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1264 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1265 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1266 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1267 vorbis_decoder_select="mdct"
1268 vorbis_encoder_select="mdct"
1269 vp6a_decoder_select="vp6_decoder"
1270 vp6f_decoder_select="vp6_decoder"
1271 vp8_decoder_select="h264dsp"
1272 wmapro_decoder_select="mdct"
1273 wmav1_decoder_select="mdct"
1274 wmav1_encoder_select="mdct"
1275 wmav2_decoder_select="mdct"
1276 wmav2_encoder_select="mdct"
1277 wmavoice_decoder_select="lsp rdft dct mdct"
1278 wmv1_decoder_select="h263_decoder"
1279 wmv1_encoder_select="h263_encoder"
1280 wmv2_decoder_select="h263_decoder"
1281 wmv2_encoder_select="h263_encoder"
1282 wmv3_decoder_select="vc1_decoder"
1283 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1284 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1285 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1286 zlib_decoder_select="zlib"
1287 zlib_encoder_select="zlib"
1288 zmbv_decoder_select="zlib"
1289 zmbv_encoder_select="zlib"
1290
1291 vaapi_deps="va_va_h"
1292 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1293
1294 # parsers
1295 h264_parser_select="golomb h264dsp"
1296
1297 # bitstream_filters
1298 aac_adtstoasc_bsf_select="aac_parser"
1299
1300 # external libraries
1301 libdirac_decoder_deps="libdirac !libschroedinger"
1302 libdirac_encoder_deps="libdirac"
1303 libfaac_encoder_deps="libfaac"
1304 libgsm_decoder_deps="libgsm"
1305 libgsm_encoder_deps="libgsm"
1306 libgsm_ms_decoder_deps="libgsm"
1307 libgsm_ms_encoder_deps="libgsm"
1308 libmp3lame_encoder_deps="libmp3lame"
1309 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1310 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1311 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1312 libopenjpeg_decoder_deps="libopenjpeg"
1313 libschroedinger_decoder_deps="libschroedinger"
1314 libschroedinger_encoder_deps="libschroedinger"
1315 libspeex_decoder_deps="libspeex"
1316 libtheora_encoder_deps="libtheora"
1317 libvorbis_encoder_deps="libvorbis"
1318 libvpx_decoder_deps="libvpx"
1319 libvpx_encoder_deps="libvpx"
1320 libx264_encoder_deps="libx264"
1321 libxvid_encoder_deps="libxvid"
1322
1323 # demuxers / muxers
1324 ac3_demuxer_deps="ac3_parser"
1325 asf_stream_muxer_select="asf_muxer"
1326 avisynth_demuxer_deps="avisynth"
1327 dirac_demuxer_deps="dirac_parser"
1328 eac3_demuxer_select="ac3_parser"
1329 ipod_muxer_select="mov_muxer"
1330 libnut_demuxer_deps="libnut"
1331 libnut_muxer_deps="libnut"
1332 matroska_audio_muxer_select="matroska_muxer"
1333 matroska_demuxer_suggest="zlib bzlib"
1334 mov_demuxer_suggest="zlib"
1335 mp3_demuxer_deps="mpegaudio_parser"
1336 mp4_muxer_select="mov_muxer"
1337 mpegtsraw_demuxer_select="mpegts_demuxer"
1338 mxf_d10_muxer_select="mxf_muxer"
1339 ogg_demuxer_select="golomb"
1340 psp_muxer_select="mov_muxer"
1341 rtsp_demuxer_deps="sdp_demuxer"
1342 rtsp_muxer_deps="sdp_demuxer"
1343 rtsp_muxer_select="rtp_muxer"
1344 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1345 sdp_demuxer_select="asf_demuxer rm_demuxer"
1346 spdif_muxer_select="aac_parser"
1347 tg2_muxer_select="mov_muxer"
1348 tgp_muxer_select="mov_muxer"
1349 w64_demuxer_deps="wav_demuxer"
1350
1351 # indevs / outdevs
1352 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1353 alsa_indev_extralibs="-lasound"
1354 alsa_outdev_deps="alsa_asoundlib_h"
1355 alsa_outdev_extralibs="-lasound"
1356 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1357 dv1394_indev_deps="dv1394 dv_demuxer"
1358 jack_indev_deps="jack_jack_h"
1359 jack_indev_extralibs="-ljack"
1360 libdc1394_indev_deps="libdc1394"
1361 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1362 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1363 v4l_indev_deps="linux_videodev_h"
1364 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1365 vfwcap_indev_deps="capCreateCaptureWindow"
1366 vfwcap_indev_extralibs="-lavicap32"
1367 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1368 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1369
1370 # protocols
1371 gopher_protocol_deps="network"
1372 http_protocol_deps="network"
1373 http_protocol_select="tcp_protocol"
1374 mmst_protocol_deps="network"
1375 rtmp_protocol_select="tcp_protocol"
1376 rtp_protocol_select="udp_protocol"
1377 tcp_protocol_deps="network"
1378 udp_protocol_deps="network"
1379
1380 # filters
1381 movie_filter_deps="avfilter_lavf"
1382 avfilter_lavf_deps="avformat"
1383
1384 # libraries
1385 avdevice_deps="avcodec avformat"
1386 avformat_deps="avcodec"
1387
1388 # programs
1389 ffmpeg_deps="avcodec avformat swscale"
1390 ffmpeg_select="buffer_filter"
1391 ffplay_deps="avcodec avformat swscale sdl"
1392 ffplay_select="rdft"
1393 ffprobe_deps="avcodec avformat"
1394 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1395 ffserver_extralibs='$ldl'
1396
1397 doc_deps="texi2html"
1398
1399 # tests
1400
1401 test_deps(){
1402     suf1=$1
1403     suf2=$2
1404     shift 2
1405     for v; do
1406         dep=${v%=*}
1407         tests=${v#*=}
1408         for name in ${tests}; do
1409             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1410         done
1411     done
1412 }
1413
1414 test_deps _encoder _decoder                                             \
1415     ac3                                                                 \
1416     adpcm_g726=g726                                                     \
1417     adpcm_ima_qt                                                        \
1418     adpcm_ima_wav                                                       \
1419     adpcm_ms                                                            \
1420     adpcm_swf                                                           \
1421     adpcm_yamaha=adpcm_yam                                              \
1422     alac                                                                \
1423     asv1                                                                \
1424     asv2                                                                \
1425     bmp                                                                 \
1426     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1427     dvvideo="dv dv50"                                                   \
1428     ffv1                                                                \
1429     flac                                                                \
1430     flashsv                                                             \
1431     flv                                                                 \
1432     gif                                                                 \
1433     h261                                                                \
1434     h263="h263 h263p"                                                   \
1435     huffyuv                                                             \
1436     jpegls                                                              \
1437     mjpeg="jpg mjpeg ljpeg"                                             \
1438     mp2                                                                 \
1439     mpeg1video="mpeg mpeg1b"                                            \
1440     mpeg2video="mpeg2 mpeg2thread"                                      \
1441     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1442     msmpeg4v1=msmpeg4                                                   \
1443     msmpeg4v2                                                           \
1444     pbm=pbmpipe                                                         \
1445     pcx                                                                 \
1446     pgm="pgm pgmpipe"                                                   \
1447     ppm="ppm ppmpipe"                                                   \
1448     rawvideo="rgb yuv"                                                  \
1449     roq                                                                 \
1450     rv10                                                                \
1451     rv20                                                                \
1452     sgi                                                                 \
1453     snow="snow snowll"                                                  \
1454     svq1                                                                \
1455     targa=tga                                                           \
1456     tiff                                                                \
1457     wmav1                                                               \
1458     wmav2                                                               \
1459     wmv1                                                                \
1460     wmv2                                                                \
1461
1462 test_deps _muxer _demuxer                                               \
1463     aiff                                                                \
1464     pcm_alaw=alaw                                                       \
1465     asf                                                                 \
1466     au                                                                  \
1467     avi                                                                 \
1468     dv=dv_fmt                                                           \
1469     ffm                                                                 \
1470     flv=flv_fmt                                                         \
1471     gxf                                                                 \
1472     matroska=mkv                                                        \
1473     mmf                                                                 \
1474     mov                                                                 \
1475     pcm_mulaw=mulaw                                                     \
1476     mxf                                                                 \
1477     nut                                                                 \
1478     ogg                                                                 \
1479     rawvideo=pixfmt                                                     \
1480     rm                                                                  \
1481     swf                                                                 \
1482     mpegts=ts                                                           \
1483     voc                                                                 \
1484     wav                                                                 \
1485     yuv4mpegpipe=yuv4mpeg                                               \
1486
1487 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1488
1489 # default parameters
1490
1491 logfile="config.log"
1492
1493 # installation paths
1494 prefix_default="/usr/local"
1495 bindir_default='${prefix}/bin'
1496 datadir_default='${prefix}/share/ffmpeg'
1497 incdir_default='${prefix}/include'
1498 libdir_default='${prefix}/lib'
1499 mandir_default='${prefix}/share/man'
1500 shlibdir_default="$libdir_default"
1501
1502 # toolchain
1503 ar_default="ar"
1504 cc_default="gcc"
1505 cc_version=\"unknown\"
1506 host_cc_default="gcc"
1507 ln_s="ln -sf"
1508 nm_default="nm"
1509 objformat="elf"
1510 ranlib="ranlib"
1511 strip_default="strip"
1512 yasmexe="yasm"
1513 nogas=":"
1514
1515 nm_opts='-g'
1516
1517 # machine
1518 arch_default=$(uname -m)
1519 cpu="generic"
1520
1521 # OS
1522 target_os_default=$(tolower $(uname -s))
1523 host_os=$target_os_default
1524
1525 # configurable options
1526 enable avcodec
1527 enable avdevice
1528 enable avfilter
1529 enable avformat
1530 enable avutil
1531 enable asm
1532 enable debug
1533 enable doc
1534 enable fastdiv
1535 enable ffmpeg
1536 enable ffplay
1537 enable ffprobe
1538 enable ffserver
1539 enable mpegaudio_hp
1540 enable network
1541 enable optimizations
1542 enable protocols
1543 enable static
1544 enable stripping
1545 enable swscale
1546 enable swscale_alpha
1547
1548 # build settings
1549 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1550 FFSERVERLDFLAGS=-Wl,-E
1551 LIBPREF="lib"
1552 LIBSUF=".a"
1553 FULLNAME='$(NAME)$(BUILDSUF)'
1554 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1555 SLIBPREF="lib"
1556 SLIBSUF=".so"
1557 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1558 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1559 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1560 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1561
1562 CC_O='-o $@'
1563
1564 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1565 host_libs='-lm'
1566
1567 target_path='$(CURDIR)'
1568
1569 # since the object filename is not given with the -MM flag, the compiler
1570 # is only able to print the basename, and we must add the path ourselves
1571 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1572 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1573
1574 # find source path
1575 source_path="$(dirname "$0")"
1576 enable source_path_used
1577 if test -f configure; then
1578     source_path="$(pwd)"
1579     disable source_path_used
1580 else
1581     source_path="$(cd "$source_path"; pwd)"
1582     echo "$source_path" | grep -q '[[:blank:]]' &&
1583         die "Out of tree builds are impossible with whitespace in source path."
1584     test -e "$source_path/config.h" &&
1585         die "Out of tree builds are impossible with config.h in source dir."
1586 fi
1587
1588 for v in "$@"; do
1589     r=${v#*=}
1590     l=${v%"$r"}
1591     r=$(sh_quote "$r")
1592     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1593 done
1594
1595 find_things(){
1596     thing=$1
1597     pattern=$2
1598     file=$source_path/$3
1599     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1600 }
1601
1602 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1603 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1604 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1605 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1606 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1607 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1608 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1609 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1610 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1611 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1612 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1613
1614 find_tests(){
1615     map 'echo ${v}_test' $(ls "$source_path"/tests/ref/$1)
1616 }
1617
1618 ACODEC_TESTS=$(find_tests acodec)
1619 VCODEC_TESTS=$(find_tests vsynth1)
1620 LAVF_TESTS=$(find_tests lavf)
1621
1622 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1623
1624 for n in $COMPONENT_LIST; do
1625     v=$(toupper ${n%s})_LIST
1626     eval enable \$$v
1627     eval ${n}_if_any="\$$v"
1628 done
1629
1630 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS
1631
1632 die_unknown(){
1633     echo "Unknown option \"$1\"."
1634     echo "See $0 --help for available options."
1635     exit 1
1636 }
1637
1638 show_list() {
1639     suffix=_$1
1640     shift
1641     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1642     exit 0
1643 }
1644
1645 for opt do
1646     optval="${opt#*=}"
1647     case "$opt" in
1648     --extra-ldflags=*) add_ldflags $optval
1649     ;;
1650     --extra-libs=*) add_extralibs $optval
1651     ;;
1652     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1653     ;;
1654     --enable-debug=*) debuglevel="$optval"
1655     ;;
1656     --disable-everything)
1657     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1658     ;;
1659     --enable-*=*|--disable-*=*)
1660     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1661     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1662     eval list=\$$(toupper $thing)_LIST
1663     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1664     $action $(filter "$name" $list)
1665     ;;
1666     --enable-?*|--disable-?*)
1667     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1668     if is_in $option $COMPONENT_LIST; then
1669         test $action = disable && action=unset
1670         eval $action \$$(toupper ${option%s})_LIST
1671     elif is_in $option $CMDLINE_SELECT; then
1672         $action $option
1673     else
1674         die_unknown $opt
1675     fi
1676     ;;
1677     --list-*)
1678         NAME="${opt#--list-}"
1679         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1680         NAME=${NAME%s}
1681         eval show_list $NAME \$$(toupper $NAME)_LIST
1682     ;;
1683     --help|-h) show_help
1684     ;;
1685     *)
1686     optname="${opt%%=*}"
1687     optname="${optname#--}"
1688     optname=$(echo "$optname" | sed 's/-/_/g')
1689     if is_in $optname $CMDLINE_SET; then
1690         eval $optname='$optval'
1691     elif is_in $optname $CMDLINE_APPEND; then
1692         append $optname "$optval"
1693     else
1694          die_unknown $opt
1695     fi
1696     ;;
1697     esac
1698 done
1699
1700 disabled logging && logfile=/dev/null
1701
1702 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1703 set >> $logfile
1704
1705 test -n "$cross_prefix" && enable cross_compile
1706
1707 if enabled cross_compile; then
1708     test -n "$arch" && test -n "$target_os" ||
1709         die "Must specify target arch and OS when cross-compiling"
1710 fi
1711
1712 set_default arch target_os
1713
1714 ar_default="${cross_prefix}${ar_default}"
1715 cc_default="${cross_prefix}${cc_default}"
1716 nm_default="${cross_prefix}${nm_default}"
1717 ranlib="${cross_prefix}${ranlib}"
1718 strip_default="${cross_prefix}${strip_default}"
1719
1720 sysinclude_default="${sysroot}/usr/include"
1721
1722 set_default cc nm strip sysinclude
1723 enabled cross_compile || host_cc_default=$cc
1724 set_default host_cc
1725
1726 exesuf() {
1727     case $1 in
1728         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1729     esac
1730 }
1731
1732 EXESUF=$(exesuf $target_os)
1733 HOSTEXESUF=$(exesuf $host_os)
1734
1735 # set temporary file name
1736 : ${TMPDIR:=$TEMPDIR}
1737 : ${TMPDIR:=$TMP}
1738 : ${TMPDIR:=/tmp}
1739
1740 if ! check_cmd type mktemp; then
1741     # simple replacement for missing mktemp
1742     # NOT SAFE FOR GENERAL USE
1743     mktemp(){
1744         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1745     }
1746 fi
1747
1748 tmpfile(){
1749     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1750         (set -C; exec > $tmp) 2>/dev/null ||
1751         die "Unable to create temporary file in $TMPDIR."
1752     append TMPFILES $tmp
1753     eval $1=$tmp
1754 }
1755
1756 trap 'rm -f -- $TMPFILES' EXIT
1757 trap exit HUP INT TERM
1758
1759 tmpfile TMPC  .c
1760 tmpfile TMPE  $EXESUF
1761 tmpfile TMPH  .h
1762 tmpfile TMPO  .o
1763 tmpfile TMPS  .S
1764 tmpfile TMPV  .ver
1765 tmpfile TMPSH .sh
1766
1767 unset -f mktemp
1768
1769 # make sure we can execute files in $TMPDIR
1770 cat > $TMPSH 2>> $logfile <<EOF
1771 #! /bin/sh
1772 EOF
1773 chmod +x $TMPSH >> $logfile 2>&1
1774 if ! $TMPSH >> $logfile 2>&1; then
1775     cat <<EOF
1776 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1777 variable to another directory and make sure that it is not mounted noexec.
1778 EOF
1779     die "Sanity test failed."
1780 fi
1781
1782 filter_cflags=echo
1783 filter_cppflags=echo
1784 filter_asflags=echo
1785
1786 if   $cc -v 2>&1 | grep -qi ^gcc; then
1787     cc_type=gcc
1788     cc_version=__VERSION__
1789     if ! $cc -dumpversion | grep -q '^2\.'; then
1790         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1791         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1792     fi
1793     speed_cflags='-O3'
1794     size_cflags='-Os'
1795 elif $cc --version 2>/dev/null | grep -q Intel; then
1796     cc_type=icc
1797     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1798     CC_DEPFLAGS='-MMD'
1799     AS_DEPFLAGS='-MMD'
1800     speed_cflags='-O3'
1801     size_cflags='-Os'
1802     noopt_cflags='-O1'
1803 elif $cc -v 2>&1 | grep -q xlc; then
1804     cc_type=xlc
1805     cc_version="AV_STRINGIFY(__IBMC__)"
1806     speed_cflags='-O5'
1807     size_cflags='-O5 -qcompact'
1808 elif $cc -V 2>/dev/null | grep -q Compaq; then
1809     cc_type=ccc
1810     cc_version="AV_STRINGIFY(__DECC_VER)"
1811     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1812     debuglevel=3
1813     add_ldflags -Wl,-z,now # calls to libots crash without this
1814     speed_cflags='-fast'
1815     size_cflags='-O1'
1816 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1817     test -d "$sysroot" || die "No valid sysroot specified."
1818     cc_type=armcc
1819     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1820     armcc_conf="$PWD/armcc.conf"
1821     $cc --arm_linux_configure                 \
1822         --arm_linux_config_file="$armcc_conf" \
1823         --configure_sysroot="$sysroot"        \
1824         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1825         die "Error creating armcc configuration file."
1826     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1827     as_default="${cross_prefix}gcc"
1828     CC_DEPFLAGS='-MMD'
1829     AS_DEPFLAGS='-MMD'
1830     speed_cflags='-O3'
1831     size_cflags='-Os'
1832 elif $cc -version 2>/dev/null | grep -q TMS470; then
1833     cc_type=tms470
1834     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1835     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1836     CC_O='-fr=$(@D)'
1837     as_default="${cross_prefix}gcc"
1838     ld_default="${cross_prefix}gcc"
1839     TMPO=$(basename $TMPC .c).o
1840     append TMPFILES $TMPO
1841     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1842     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1843     AS_DEPFLAGS='-MMD'
1844     speed_cflags='-O3 -mf=5'
1845     size_cflags='-O3 -mf=2'
1846     filter_cflags=tms470_flags
1847     tms470_flags(){
1848         for flag; do
1849             case $flag in
1850                 -march=*|-mcpu=*)
1851                     case "${flag#*=}" in
1852                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1853                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1854                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1855                         armv6*|arm11*)          echo -mv=6   ;;
1856                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1857                                                 echo -mv=5e  ;;
1858                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1859                     esac
1860                     ;;
1861                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1862                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1863                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1864                 -msoft-float)   echo --float_support=vfplib       ;;
1865                 -O[0-3]|-mf=*)  echo $flag                        ;;
1866                 -g)             echo -g -mn                       ;;
1867                 -pds=*)         echo $flag                        ;;
1868             esac
1869         done
1870     }
1871 elif $cc -v 2>&1 | grep -q clang; then
1872     cc_type=clang
1873     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1874         cc_version=__clang_version__ || cc_version=__VERSION__
1875     CC_DEPFLAGS='-MMD'
1876     AS_DEPFLAGS='-MMD'
1877     speed_cflags='-O3'
1878     size_cflags='-Os'
1879 elif $cc -V 2>&1 | grep -q Sun; then
1880     cc_type=suncc
1881     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1882     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1883     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1884     speed_cflags='-O5'
1885     size_cflags='-O5 -xspace'
1886     filter_cflags=suncc_flags
1887     suncc_flags(){
1888         for flag; do
1889             case $flag in
1890                 -march=*|-mcpu=*)
1891                     case "${flag#*=}" in
1892                         native)                   echo -xtarget=native       ;;
1893                         v9|niagara)               echo -xarch=sparc          ;;
1894                         ultrasparc)               echo -xarch=sparcvis       ;;
1895                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1896                         i586|pentium)             echo -xchip=pentium        ;;
1897                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1898                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1899                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1900                         pentium4*)          echo -xtarget=pentium4           ;;
1901                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1902                         *-sse3)             echo -xarch=sse3                 ;;
1903                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1904                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1905                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1906                         k8|opteron|athlon64|athlon-fx)
1907                                                   echo -xarch=sse2a          ;;
1908                         athlon*)                  echo -xarch=pentium_proa   ;;
1909                     esac
1910                     ;;
1911                 -std=c99)             echo -xc99              ;;
1912                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1913                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1914                 -W*,*)                echo $flag              ;;
1915                 -f*-*|-W*)                                    ;;
1916                 *)                    echo $flag              ;;
1917             esac
1918         done
1919     }
1920 fi
1921
1922 test -n "$cc_type" && enable $cc_type ||
1923     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1924
1925 : ${as_default:=$cc}
1926 : ${dep_cc_default:=$cc}
1927 : ${ld_default:=$cc}
1928 set_default ar as dep_cc ld
1929
1930 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1931 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1932
1933 add_cflags $extra_cflags
1934 add_asflags $extra_cflags
1935
1936 if test -n "$sysroot"; then
1937     case "$cc_type" in
1938         gcc)
1939             add_cppflags --sysroot="$sysroot"
1940             add_ldflags --sysroot="$sysroot"
1941         ;;
1942         tms470)
1943             add_cppflags -I"$sysinclude"
1944             add_ldflags  --sysroot="$sysroot"
1945         ;;
1946         clang)
1947             add_cppflags -isysroot "$sysroot"
1948             add_ldflags -isysroot "$sysroot"
1949         ;;
1950     esac
1951 fi
1952
1953 if test "$cpu" = host; then
1954     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1955
1956     case "$cc_type" in
1957         gcc)
1958             check_native(){
1959                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1960                 sed -n "/$1=/{
1961                             s/.*$1=\\([^ ]*\\).*/\\1/
1962                             p
1963                             q
1964                         }" $TMPE
1965             }
1966             cpu=$(check_native -march || check_native -mcpu)
1967         ;;
1968     esac
1969
1970     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1971 fi
1972
1973 # Deal with common $arch aliases
1974 case "$arch" in
1975     arm*)
1976         arch="arm"
1977     ;;
1978     mips|mipsel|IP*)
1979         arch="mips"
1980     ;;
1981     mips64*)
1982         arch="mips"
1983         subarch="mips64"
1984     ;;
1985     parisc|hppa)
1986         arch="parisc"
1987     ;;
1988     parisc64|hppa64)
1989         arch="parisc"
1990         subarch="parisc64"
1991     ;;
1992     "Power Macintosh"|ppc|powerpc)
1993         arch="ppc"
1994     ;;
1995     ppc64|powerpc64)
1996         arch="ppc"
1997         subarch="ppc64"
1998     ;;
1999     s390|s390x)
2000         arch="s390"
2001     ;;
2002     sh4|sh)
2003         arch="sh4"
2004     ;;
2005     sun4u|sparc64)
2006         arch="sparc"
2007         subarch="sparc64"
2008     ;;
2009     i[3-6]86|i86pc|BePC|x86_64|amd64)
2010         arch="x86"
2011     ;;
2012 esac
2013
2014 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2015 enable $arch
2016
2017 # Add processor-specific flags
2018 if test "$cpu" = generic; then
2019     : do nothing
2020 elif enabled ppc; then
2021
2022     case $(tolower $cpu) in
2023         601|ppc601|powerpc601)
2024             cpuflags="-mcpu=601"
2025             disable altivec
2026         ;;
2027         603*|ppc603*|powerpc603*)
2028             cpuflags="-mcpu=603"
2029             disable altivec
2030         ;;
2031         604*|ppc604*|powerpc604*)
2032             cpuflags="-mcpu=604"
2033             disable altivec
2034         ;;
2035         g3|75*|ppc75*|powerpc75*)
2036             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2037             disable altivec
2038         ;;
2039         g4|745*|ppc745*|powerpc745*)
2040             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2041         ;;
2042         74*|ppc74*|powerpc74*)
2043             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2044         ;;
2045         g5|970|ppc970|powerpc970|power4*)
2046             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2047         ;;
2048         cell)
2049             cpuflags="-mcpu=cell"
2050             enable ldbrx
2051         ;;
2052         e500v2)
2053             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2054             disable altivec
2055         ;;
2056         e500)
2057             cpuflags="-mcpu=8540 -mhard-float"
2058             disable altivec
2059         ;;
2060     esac
2061
2062 elif enabled x86; then
2063
2064     case $cpu in
2065         i[345]86|pentium)
2066             cpuflags="-march=$cpu"
2067             disable mmx
2068         ;;
2069         # targets that do NOT support conditional mov (cmov)
2070         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2071             cpuflags="-march=$cpu"
2072             disable cmov
2073         ;;
2074         # targets that do support conditional mov (cmov)
2075         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2076             cpuflags="-march=$cpu"
2077             enable cmov
2078             enable fast_cmov
2079         ;;
2080         # targets that do support conditional mov but on which it's slow
2081         pentium4|pentium4m|prescott|nocona)
2082             cpuflags="-march=$cpu"
2083             enable cmov
2084             disable fast_cmov
2085         ;;
2086     esac
2087
2088 elif enabled sparc; then
2089
2090     case $cpu in
2091         niagara)
2092             cpuflags="-mcpu=$cpu"
2093             disable vis
2094         ;;
2095         sparc64)
2096             cpuflags="-mcpu=v9"
2097         ;;
2098     esac
2099
2100 elif enabled arm; then
2101
2102     case $cpu in
2103         armv*)
2104             cpuflags="-march=$cpu"
2105         ;;
2106         *)
2107             cpuflags="-mcpu=$cpu"
2108         ;;
2109     esac
2110
2111 elif enabled alpha; then
2112
2113     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2114
2115 elif enabled bfin; then
2116
2117     cpuflags="-mcpu=$cpu"
2118
2119 elif enabled mips; then
2120
2121     cpuflags="-march=$cpu"
2122
2123 elif enabled avr32; then
2124
2125     case $cpu in
2126         ap7[02]0[0-2])
2127             subarch="avr32_ap"
2128             cpuflags="-mpart=$cpu"
2129         ;;
2130         ap)
2131             subarch="avr32_ap"
2132             cpuflags="-march=$cpu"
2133         ;;
2134         uc3[ab]*)
2135             subarch="avr32_uc"
2136             cpuflags="-mcpu=$cpu"
2137         ;;
2138         uc)
2139             subarch="avr32_uc"
2140             cpuflags="-march=$cpu"
2141         ;;
2142     esac
2143
2144 fi
2145
2146 add_cflags $cpuflags
2147 add_asflags $cpuflags
2148
2149 # compiler sanity check
2150 check_exec <<EOF
2151 int main(void){ return 0; }
2152 EOF
2153 if test "$?" != 0; then
2154     echo "$cc is unable to create an executable file."
2155     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2156         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2157         echo "Only do this if you know what cross compiling means."
2158     fi
2159     die "C compiler test failed."
2160 fi
2161
2162 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2163 check_cflags -std=c99
2164 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2165 #include <stdlib.h>
2166 EOF
2167 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2168 #include <stdlib.h>
2169 EOF
2170
2171 check_host_cflags -std=c99
2172
2173 case "$arch" in
2174     alpha|ia64|mips|parisc|sparc)
2175         spic=$shared
2176     ;;
2177     x86)
2178         subarch="x86_32"
2179         check_cc <<EOF && subarch="x86_64"
2180         int test[(int)sizeof(char*) - 7];
2181 EOF
2182         if test "$subarch" = "x86_64"; then
2183             spic=$shared
2184         fi
2185     ;;
2186 esac
2187
2188 enable $subarch
2189 enabled spic && enable pic
2190
2191 # OS specific
2192 case $target_os in
2193     haiku)
2194         prefix_default="/boot/common"
2195         network_extralibs="-lnetwork"
2196         ;;
2197     sunos)
2198         FFSERVERLDFLAGS=""
2199         SHFLAGS='-shared -Wl,-h,$$(@F)'
2200         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2201         network_extralibs="-lsocket -lnsl"
2202         add_cppflags -D__EXTENSIONS__
2203         nm_opts='-P -g'
2204         ;;
2205     netbsd)
2206         oss_indev_extralibs="-lossaudio"
2207         oss_outdev_extralibs="-lossaudio"
2208         add_cppflags -D_XOPEN_SOURCE=600
2209         ;;
2210     openbsd)
2211         enable malloc_aligned
2212         # On OpenBSD 4.5. the compiler does not use PIC unless
2213         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2214         # however the generated executable will not do anything
2215         # (simply quits with exit-code 1, no crash, no output).
2216         # Thus explicitly enable PIC here.
2217         enable pic
2218         SHFLAGS='-shared'
2219         oss_indev_extralibs="-lossaudio"
2220         oss_outdev_extralibs="-lossaudio"
2221         ;;
2222     freebsd|dragonfly)
2223         enable malloc_aligned
2224         ;;
2225     bsd/os)
2226         add_extralibs -lpoll -lgnugetopt
2227         strip="strip -d"
2228         ;;
2229     darwin)
2230         enable malloc_aligned
2231         gas="gas-preprocessor.pl $cc"
2232         enabled ppc && add_asflags -force_cpusubtype_ALL
2233         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2234         strip="${strip} -x"
2235         add_ldflags -Wl,-dynamic,-search_paths_first
2236         SLIBSUF=".dylib"
2237         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2238         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2239         FFSERVERLDFLAGS=-Wl,-bind_at_load
2240         objformat="macho"
2241         enabled x86_64 && objformat="macho64"
2242         enabled_any pic shared ||
2243             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2244         ;;
2245     mingw32*)
2246         if test $target_os = "mingw32ce"; then
2247             disable network
2248         else
2249             target_os=mingw32
2250         fi
2251         LIBTARGET=i386
2252         if enabled x86_64; then
2253             enable malloc_aligned
2254             LIBTARGET=x64
2255         elif enabled arm; then
2256             LIBTARGET=arm
2257         fi
2258         shlibdir_default="$bindir_default"
2259         disable ffserver
2260         SLIBPREF=""
2261         SLIBSUF=".dll"
2262         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2263         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2264         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2265         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2266             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2267             install -d "$(LIBDIR)"; \
2268             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2269         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2270         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2271         objformat="win32"
2272         enable dos_paths
2273         check_cflags -fno-common
2274         if ! check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR)"; then
2275             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2276                 die "ERROR: MinGW runtime version must be >= 3.15."
2277             enabled_any avisynth vfwcap_indev &&
2278                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2279                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2280         fi
2281         ;;
2282     cygwin*)
2283         target_os=cygwin
2284         shlibdir_default="$bindir_default"
2285         SLIBPREF="cyg"
2286         SLIBSUF=".dll"
2287         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2288         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2289         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2290         objformat="win32"
2291         enable dos_paths
2292         check_cflags -fno-common
2293         ;;
2294     *-dos|freedos|opendos)
2295         disable ffplay ffserver
2296         disable $INDEV_LIST $OUTDEV_LIST
2297         network_extralibs="-lsocket"
2298         objformat="coff"
2299         enable dos_paths
2300         ;;
2301     linux)
2302         enable dv1394
2303         ;;
2304     irix*)
2305         target_os=irix
2306         ranlib="echo ignoring ranlib"
2307         ;;
2308     os/2*)
2309         strip="lxlite"
2310         ln_s="cp -f"
2311         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2312         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2313         FFSERVERLDFLAGS=""
2314         LIBSUF="_s.a"
2315         SLIBPREF=""
2316         SLIBSUF=".dll"
2317         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2318         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2319         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2320           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2321           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2322           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2323           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2324           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2325         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2326           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2327         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2328         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2329         enable dos_paths
2330         ;;
2331     gnu/kfreebsd)
2332         ;;
2333     gnu)
2334         ;;
2335     none)
2336         ;;
2337     *)
2338         die "Unknown OS '$target_os'."
2339         ;;
2340 esac
2341
2342 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2343
2344 set_default $PATHS_LIST
2345
2346 # we need to build at least one lib type
2347 if ! enabled_any static shared; then
2348     cat <<EOF
2349 At least one library type must be built.
2350 Specify --enable-static to build the static libraries or --enable-shared to
2351 build the shared libraries as well. To only build the shared libraries specify
2352 --disable-static in addition to --enable-shared.
2353 EOF
2354     exit 1;
2355 fi
2356
2357 disabled static && LIBNAME=""
2358
2359 die_license_disabled() {
2360     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2361 }
2362
2363 die_license_disabled gpl libx264
2364 die_license_disabled gpl libxvid
2365 die_license_disabled gpl postproc
2366 die_license_disabled gpl x11grab
2367
2368 die_license_disabled nonfree libfaac
2369
2370 die_license_disabled version3 libopencore_amrnb
2371 die_license_disabled version3 libopencore_amrwb
2372
2373 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2374
2375 check_deps $ARCH_EXT_LIST
2376
2377 disabled optimizations || check_cflags -fomit-frame-pointer
2378
2379 enable_pic() {
2380     enable pic
2381     add_cppflags -DPIC
2382     add_cflags   -fPIC
2383     add_asflags  -fPIC
2384 }
2385
2386 enabled pic && enable_pic
2387
2388 check_cc <<EOF || die "Symbol mangling check failed."
2389 int ff_extern;
2390 EOF
2391 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2392 extern_prefix=${sym%%ff_extern*}
2393
2394 check_cc <<EOF && enable inline_asm
2395 void foo(void) { __asm__ volatile ("" ::); }
2396 EOF
2397
2398 _restrict=
2399 for restrict_keyword in restrict __restrict__ __restrict; do
2400     check_cc <<EOF && _restrict=$restrict_keyword && break
2401 void foo(char * $restrict_keyword p);
2402 EOF
2403 done
2404
2405 check_cc <<EOF && enable attribute_packed
2406 struct { int x; } __attribute__((packed)) x;
2407 EOF
2408
2409 check_cc <<EOF && enable attribute_may_alias
2410 union { int x; } __attribute__((may_alias)) x;
2411 EOF
2412
2413 check_cc <<EOF || die "endian test failed"
2414 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2415 EOF
2416 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2417
2418 if enabled alpha; then
2419
2420     check_cflags -mieee
2421
2422 elif enabled arm; then
2423
2424     check_cflags -marm
2425     nogas=die
2426
2427     check_ld <<EOF && enable vfp_args
2428 __asm__ (".eabi_attribute 28, 1");
2429 int main(void) { return 0; }
2430 EOF
2431
2432     # We have to check if pld is a nop and disable it.
2433     check_asm pld '"pld [r0]"'
2434
2435     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2436     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2437     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2438     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2439     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2440     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2441
2442     enabled_all armv6t2 shared !pic && enable_pic
2443
2444 elif enabled mips; then
2445
2446     check_asm loongson '"dmult.g $1, $2, $3"'
2447     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2448
2449 elif enabled ppc; then
2450
2451     enable local_aligned_8 local_aligned_16
2452
2453     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2454     check_asm ibm_asm   '"add 0, 0, 0"'
2455     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2456     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2457
2458     # AltiVec flags: The FSF version of GCC differs from the Apple version
2459     if enabled altivec; then
2460         nogas=warn
2461         check_cflags -maltivec -mabi=altivec &&
2462         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2463         check_cflags -faltivec
2464
2465         # check if our compiler supports Motorola AltiVec C API
2466         check_cc <<EOF || disable altivec
2467 $inc_altivec_h
2468 int main(void) {
2469     vector signed int v1, v2, v3;
2470     v1 = vec_add(v2,v3);
2471     return 0;
2472 }
2473 EOF
2474
2475         # check if our compiler supports braces for vector declarations
2476         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2477 $inc_altivec_h
2478 int main (void) { (vector int) {1}; return 0; }
2479 EOF
2480     fi
2481
2482 elif enabled sparc; then
2483
2484     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2485         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2486
2487 elif enabled x86; then
2488
2489     enable local_aligned_8 local_aligned_16
2490
2491     # check whether EBP is available on x86
2492     # As 'i' is stored on the stack, this program will crash
2493     # if the base pointer is used to access it because the
2494     # base pointer is cleared in the inline assembly code.
2495     check_exec_crash <<EOF && enable ebp_available
2496     volatile int i=0;
2497     __asm__ volatile (
2498         "xorl %%ebp, %%ebp"
2499     ::: "%ebp");
2500     return i;
2501 EOF
2502
2503     # check whether EBX is available on x86
2504     check_asm ebx_available '""::"b"(0)' &&
2505         check_asm ebx_available '"":::"%ebx"'
2506
2507     # check whether more than 10 operands are supported
2508     check_cc <<EOF && enable ten_operands
2509 int main(void) {
2510     int x=0;
2511     __asm__ volatile(
2512         ""
2513         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2514     );
2515     return 0;
2516 }
2517 EOF
2518
2519     # check whether binutils is new enough to compile SSSE3/MMX2
2520     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2521     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2522
2523     check_asm bswap '"bswap %%eax" ::: "%eax"'
2524
2525     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2526     enabled     x86_64        && append YASMFLAGS "-m amd64"
2527     enabled     pic           && append YASMFLAGS "-DPIC"
2528     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2529     case "$objformat" in
2530         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2531     esac
2532     if ! disabled yasm; then
2533         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2534             warn "yasm not found, performance will suffer"
2535     fi
2536
2537     case "$cpu" in
2538         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2539             disable fast_clz
2540         ;;
2541     esac
2542
2543 fi
2544
2545 if enabled asm; then
2546     as=${gas:=$as}
2547     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2548         $nogas "GNU assembler not found, install gas-preprocessor"
2549 fi
2550
2551 if check_func dlopen; then
2552     ldl=
2553 elif check_func dlopen -ldl; then
2554     ldl=-ldl
2555 fi
2556
2557 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2558 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2559
2560 check_func  fcntl
2561 check_func  fork
2562 check_func  getaddrinfo $network_extralibs
2563 check_func  gethrtime
2564 check_func  getrusage
2565 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2566 check_func  inet_aton $network_extralibs
2567 check_func  isatty
2568 check_func  ${malloc_prefix}memalign            && enable memalign
2569 check_func  mkstemp
2570 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2571 check_func  setrlimit
2572 check_func  strerror_r
2573 check_func_headers io.h setmode
2574 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2575 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2576 check_func_headers windows.h GetProcessTimes
2577 check_func_headers windows.h VirtualAlloc
2578
2579 check_header conio.h
2580 check_header dlfcn.h
2581 check_header dxva2api.h
2582 check_header malloc.h
2583 check_header poll.h
2584 check_header sys/mman.h
2585 check_header sys/resource.h
2586 check_header sys/select.h
2587 check_header termios.h
2588 check_header vdpau/vdpau.h
2589 check_header vdpau/vdpau_x11.h
2590 check_header X11/extensions/XvMClib.h
2591
2592 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2593
2594 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2595      enabled_any $need_memalign ; then
2596     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2597 fi
2598
2599 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2600 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2601
2602 # check for some common methods of building with pthread support
2603 # do this before the optional library checks as some of them require pthreads
2604 if ! disabled pthreads && ! enabled w32threads; then
2605     enable pthreads
2606     if check_func pthread_create; then
2607         :
2608     elif check_func pthread_create -pthread; then
2609         add_cflags -pthread
2610         add_extralibs -pthread
2611     elif check_func pthread_create -pthreads; then
2612         add_cflags -pthreads
2613         add_extralibs -pthreads
2614     elif check_func pthread_create -lpthreadGC2; then
2615         add_extralibs -lpthreadGC2
2616     elif ! check_lib pthread.h pthread_create -lpthread; then
2617         disable pthreads
2618     fi
2619 fi
2620
2621 for thread in $THREADS_LIST; do
2622     if enabled $thread; then
2623         test -n "$thread_type" &&
2624             die "ERROR: Only one thread type must be selected." ||
2625             thread_type="$thread"
2626     fi
2627 done
2628
2629 check_lib math.h sin -lm
2630 disabled vaapi || check_lib va/va.h vaInitialize -lva
2631
2632 check_mathfunc exp2
2633 check_mathfunc exp2f
2634 check_mathfunc llrint
2635 check_mathfunc llrintf
2636 check_mathfunc log2
2637 check_mathfunc log2f
2638 check_mathfunc lrint
2639 check_mathfunc lrintf
2640 check_mathfunc round
2641 check_mathfunc roundf
2642 check_mathfunc truncf
2643
2644 # these are off by default, so fail if requested and not available
2645 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2646 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2647                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2648                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2649 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2650 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2651 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2652 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2653 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2654 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2655 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2656 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2657                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2658 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2659                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2660 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2661 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2662 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2663 enabled libvpx     && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx &&
2664                         check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2665                       die "ERROR: libvpx version must be >=0.9.1"; }
2666 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2667                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2668                         die "ERROR: libx264 version must be >= 0.98."; }
2669 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2670 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2671
2672 # libdc1394 check
2673 if enabled libdc1394; then
2674     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2675         enable libdc1394_2; } ||
2676     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2677         enable libdc1394_1; } ||
2678     die "ERROR: No version of libdc1394 found "
2679 fi
2680
2681 SDL_CONFIG="${cross_prefix}sdl-config"
2682 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2683     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2684     sdl_libs=$("${SDL_CONFIG}" --libs)
2685     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2686     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2687     enable sdl &&
2688     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2689 fi
2690
2691 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2692
2693 if enabled network; then
2694     check_type "sys/types.h sys/socket.h" socklen_t
2695     check_type netdb.h "struct addrinfo"
2696     check_type netinet/in.h "struct ipv6_mreq"
2697     check_type netinet/in.h "struct sockaddr_in6"
2698     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2699     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2700     # Prefer arpa/inet.h over winsock2
2701     if check_header arpa/inet.h ; then
2702         check_func closesocket
2703     elif check_header winsock2.h ; then
2704         check_func_headers winsock2.h closesocket -lws2 && \
2705             network_extralibs="-lws2" || \
2706         { check_func_headers winsock2.h closesocket -lws2_32 && \
2707             network_extralibs="-lws2_32"; }
2708         check_type ws2tcpip.h socklen_t
2709         check_type ws2tcpip.h "struct addrinfo"
2710         check_type ws2tcpip.h "struct ipv6_mreq"
2711         check_type ws2tcpip.h "struct sockaddr_in6"
2712         check_type ws2tcpip.h "struct sockaddr_storage"
2713         check_struct winsock2.h "struct sockaddr" sa_len
2714     else
2715         disable network
2716     fi
2717 fi
2718
2719 check_header linux/videodev.h
2720 check_header linux/videodev2.h
2721 check_header sys/videoio.h
2722
2723 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2724
2725 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2726 { check_header dev/bktr/ioctl_meteor.h &&
2727   check_header dev/bktr/ioctl_bt848.h; } ||
2728 { check_header machine/ioctl_meteor.h &&
2729   check_header machine/ioctl_bt848.h; } ||
2730 { check_header dev/video/meteor/ioctl_meteor.h &&
2731   check_header dev/video/bktr/ioctl_bt848.h; } ||
2732 check_header dev/ic/bt8xx.h
2733
2734 check_header sys/soundcard.h
2735 check_header soundcard.h
2736
2737 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2738
2739 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2740
2741 enabled x11grab                         &&
2742 check_header X11/Xlib.h                 &&
2743 check_header X11/extensions/XShm.h      &&
2744 check_header X11/extensions/Xfixes.h    &&
2745 check_func XOpenDisplay -lX11           &&
2746 check_func XShmCreateImage -lX11 -lXext &&
2747 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2748
2749 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2750 check_cpp_condition \
2751     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2752     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2753       disable vdpau; }
2754 fi
2755
2756 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2757
2758 # add some useful compiler flags if supported
2759 check_cflags -Wdeclaration-after-statement
2760 check_cflags -Wall
2761 check_cflags -Wno-switch
2762 check_cflags -Wdisabled-optimization
2763 check_cflags -Wpointer-arith
2764 check_cflags -Wredundant-decls
2765 check_cflags -Wno-pointer-sign
2766 check_cflags -Wcast-qual
2767 check_cflags -Wwrite-strings
2768 check_cflags -Wtype-limits
2769 check_cflags -Wundef
2770 check_cflags -Wmissing-prototypes
2771 enabled extra_warnings && check_cflags -Winline
2772
2773 # add some linker flags
2774 check_ldflags -Wl,--warn-common
2775 check_ldflags -Wl,--as-needed
2776 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2777 check_ldflags -Wl,-Bsymbolic
2778
2779 echo "X{};" > $TMPV
2780 if test_ldflags -Wl,--version-script,$TMPV; then
2781     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2782     check_cc <<EOF && enable symver_asm_label
2783 void ff_foo(void) __asm__ ("av_foo@VERSION");
2784 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2785 EOF
2786     check_cc <<EOF && enable symver_gnu_asm
2787 __asm__(".symver ff_foo,av_foo@VERSION");
2788 void ff_foo(void) {}
2789 EOF
2790 fi
2791
2792 if enabled small; then
2793     add_cflags $size_cflags
2794     optimizations="small"
2795 elif enabled optimizations; then
2796     add_cflags $speed_cflags
2797 else
2798     add_cflags $noopt_cflags
2799 fi
2800 check_cflags -fno-math-errno
2801 check_cflags -fno-signed-zeros
2802
2803 if enabled icc; then
2804     # Just warnings, no remarks
2805     check_cflags -w1
2806     # -wd: Disable following warnings
2807     # 144, 167, 556: -Wno-pointer-sign
2808     # 10006: ignoring unknown option -fno-signed-zeros
2809     # 10156: ignoring option '-W'; no argument required
2810     check_cflags -wd144,167,556,10006,10156
2811     # 11030: Warning unknown option --as-needed
2812     # 10156: ignoring option '-export'; no argument required
2813     check_ldflags -wd10156,11030
2814     # Allow to compile with optimizations
2815     check_ldflags -march=$cpu
2816     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2817     enable ebp_available
2818 elif enabled ccc; then
2819     # disable some annoying warnings
2820     add_cflags -msg_disable cvtu32to64
2821     add_cflags -msg_disable embedcomment
2822     add_cflags -msg_disable needconstext
2823     add_cflags -msg_disable nomainieee
2824     add_cflags -msg_disable ptrmismatch1
2825     add_cflags -msg_disable unreachcode
2826 elif enabled gcc; then
2827     check_cflags -fno-tree-vectorize
2828     check_cflags -Werror=implicit-function-declaration
2829     check_cflags -Werror=missing-prototypes
2830 elif enabled clang; then
2831     check_cflags -Qunused-arguments
2832 elif enabled armcc; then
2833     # 2523: use of inline assembler is deprecated
2834     add_cflags -Wrvct,--diag_suppress=2523
2835     add_cflags -Wrvct,--diag_suppress=1207
2836 elif enabled tms470; then
2837     add_cflags -pds=824 -pds=837
2838 fi
2839
2840 enabled_any $THREADS_LIST      && enable threads
2841
2842 check_deps $CONFIG_LIST       \
2843            $CONFIG_EXTRA      \
2844            $HAVE_LIST         \
2845            $DECODER_LIST      \
2846            $ENCODER_LIST      \
2847            $HWACCEL_LIST      \
2848            $PARSER_LIST       \
2849            $BSF_LIST          \
2850            $DEMUXER_LIST      \
2851            $MUXER_LIST        \
2852            $FILTER_LIST       \
2853            $INDEV_LIST        \
2854            $OUTDEV_LIST       \
2855            $PROTOCOL_LIST     \
2856            $ACODEC_TESTS      \
2857            $VCODEC_TESTS      \
2858            $LAVF_TESTS        \
2859
2860 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2861
2862 echo "install prefix            $prefix"
2863 echo "source path               $source_path"
2864 echo "C compiler                $cc"
2865 echo "ARCH                      $arch ($cpu)"
2866 if test "$build_suffix" != ""; then
2867     echo "build suffix              $build_suffix"
2868 fi
2869 if test "$extra_version" != ""; then
2870     echo "version string suffix     $extra_version"
2871 fi
2872 echo "big-endian                ${bigendian-no}"
2873 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2874 if enabled x86; then
2875     echo "yasm                      ${yasm-no}"
2876     echo "MMX enabled               ${mmx-no}"
2877     echo "MMX2 enabled              ${mmx2-no}"
2878     echo "3DNow! enabled            ${amd3dnow-no}"
2879     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2880     echo "SSE enabled               ${sse-no}"
2881     echo "SSSE3 enabled             ${ssse3-no}"
2882     echo "CMOV enabled              ${cmov-no}"
2883     echo "CMOV is fast              ${fast_cmov-no}"
2884     echo "EBX available             ${ebx_available-no}"
2885     echo "EBP available             ${ebp_available-no}"
2886     echo "10 operands supported     ${ten_operands-no}"
2887 fi
2888 if enabled arm; then
2889     echo "ARMv5TE enabled           ${armv5te-no}"
2890     echo "ARMv6 enabled             ${armv6-no}"
2891     echo "ARMv6T2 enabled           ${armv6t2-no}"
2892     echo "ARM VFP enabled           ${armvfp-no}"
2893     echo "IWMMXT enabled            ${iwmmxt-no}"
2894     echo "NEON enabled              ${neon-no}"
2895 fi
2896 if enabled mips; then
2897     echo "MMI enabled               ${mmi-no}"
2898 fi
2899 if enabled ppc; then
2900     echo "AltiVec enabled           ${altivec-no}"
2901     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2902     echo "dcbzl available           ${dcbzl-no}"
2903 fi
2904 if enabled sparc; then
2905     echo "VIS enabled               ${vis-no}"
2906 fi
2907 echo "debug symbols             ${debug-no}"
2908 echo "strip symbols             ${stripping-no}"
2909 echo "optimizations             ${optimizations-no}"
2910 echo "static                    ${static-no}"
2911 echo "shared                    ${shared-no}"
2912 echo "postprocessing support    ${postproc-no}"
2913 echo "new filter support        ${avfilter-no}"
2914 echo "filters using lavformat   ${avfilter_lavf-no}"
2915 echo "network support           ${network-no}"
2916 echo "threading support         ${thread_type-no}"
2917 echo "SDL support               ${sdl-no}"
2918 echo "Sun medialib support      ${mlib-no}"
2919 echo "AVISynth enabled          ${avisynth-no}"
2920 echo "libdc1394 support         ${libdc1394-no}"
2921 echo "libdirac enabled          ${libdirac-no}"
2922 echo "libfaac enabled           ${libfaac-no}"
2923 echo "libgsm enabled            ${libgsm-no}"
2924 echo "libmp3lame enabled        ${libmp3lame-no}"
2925 echo "libnut enabled            ${libnut-no}"
2926 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2927 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2928 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2929 echo "librtmp enabled           ${librtmp-no}"
2930 echo "libschroedinger enabled   ${libschroedinger-no}"
2931 echo "libspeex enabled          ${libspeex-no}"
2932 echo "libtheora enabled         ${libtheora-no}"
2933 echo "libvorbis enabled         ${libvorbis-no}"
2934 echo "libvpx enabled            ${libvpx-no}"
2935 echo "libx264 enabled           ${libx264-no}"
2936 echo "libxvid enabled           ${libxvid-no}"
2937 echo "zlib enabled              ${zlib-no}"
2938 echo "bzlib enabled             ${bzlib-no}"
2939 echo
2940
2941 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2942     echo "Enabled ${type}s:"
2943     eval list=\$$(toupper $type)_LIST
2944     print_enabled '_*' $list | sort | pr -3 -t
2945     echo
2946 done
2947
2948 license="LGPL version 2.1 or later"
2949 if enabled nonfree; then
2950     license="nonfree and unredistributable"
2951 elif enabled gplv3; then
2952     license="GPL version 3 or later"
2953 elif enabled lgplv3; then
2954     license="LGPL version 3 or later"
2955 elif enabled gpl; then
2956     license="GPL version 2 or later"
2957 fi
2958
2959 echo "License: $license"
2960
2961 echo "Creating config.mak and config.h..."
2962
2963 # build tree in object directory if source path is different from current one
2964 if enabled source_path_used; then
2965     DIRS="
2966         doc
2967         libavcodec
2968         libavcodec/$arch
2969         libavdevice
2970         libavfilter
2971         libavformat
2972         libavutil
2973         libavutil/$arch
2974         libpostproc
2975         libswscale
2976         libswscale/$arch
2977         tests
2978         tools
2979     "
2980     FILES="
2981         Makefile
2982         common.mak
2983         subdir.mak
2984         doc/texi2pod.pl
2985         libavcodec/Makefile
2986         libavcodec/${arch}/Makefile
2987         libavdevice/Makefile
2988         libavfilter/Makefile
2989         libavformat/Makefile
2990         libavutil/Makefile
2991         libpostproc/Makefile
2992         libswscale/Makefile
2993     "
2994     map 'mkdir -p $v' $DIRS;
2995     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
2996 fi
2997
2998 enabled stripping || strip="echo skipping strip"
2999
3000 cat > config.mak <<EOF
3001 # Automatically generated by configure - do not modify!
3002 ifndef FFMPEG_CONFIG_MAK
3003 FFMPEG_CONFIG_MAK=1
3004 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3005 prefix=$prefix
3006 LIBDIR=\$(DESTDIR)$libdir
3007 SHLIBDIR=\$(DESTDIR)$shlibdir
3008 INCDIR=\$(DESTDIR)$incdir
3009 BINDIR=\$(DESTDIR)$bindir
3010 DATADIR=\$(DESTDIR)$datadir
3011 MANDIR=\$(DESTDIR)$mandir
3012 SRC_PATH="$source_path"
3013 SRC_PATH_BARE=$source_path
3014 BUILD_ROOT="$PWD"
3015 ARCH=$arch
3016 CC=$cc
3017 AS=$as
3018 LD=$ld
3019 DEPCC=$dep_cc
3020 YASM=$yasmexe
3021 YASMDEP=$yasmexe
3022 AR=$ar
3023 RANLIB=$ranlib
3024 CP=cp -p
3025 LN_S=$ln_s
3026 STRIP=$strip
3027 CPPFLAGS=$CPPFLAGS
3028 CFLAGS=$CFLAGS
3029 ASFLAGS=$ASFLAGS
3030 CC_O=$CC_O
3031 LDFLAGS=$LDFLAGS
3032 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3033 SHFLAGS=$SHFLAGS
3034 YASMFLAGS=$YASMFLAGS
3035 BUILDSUF=$build_suffix
3036 FULLNAME=$FULLNAME
3037 LIBPREF=$LIBPREF
3038 LIBSUF=$LIBSUF
3039 LIBNAME=$LIBNAME
3040 SLIBPREF=$SLIBPREF
3041 SLIBSUF=$SLIBSUF
3042 EXESUF=$EXESUF
3043 EXTRA_VERSION=$extra_version
3044 DEPFLAGS=$DEPFLAGS
3045 CCDEP=$CCDEP
3046 ASDEP=$ASDEP
3047 CC_DEPFLAGS=$CC_DEPFLAGS
3048 AS_DEPFLAGS=$AS_DEPFLAGS
3049 HOSTCC=$host_cc
3050 HOSTCFLAGS=$host_cflags
3051 HOSTEXESUF=$HOSTEXESUF
3052 HOSTLDFLAGS=$host_ldflags
3053 HOSTLIBS=$host_libs
3054 TARGET_EXEC=$target_exec
3055 TARGET_PATH=$target_path
3056 SDL_LIBS=$sdl_libs
3057 SDL_CFLAGS=$sdl_cflags
3058 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3059 EXTRALIBS=$extralibs
3060 INSTALL=install
3061 LIBTARGET=${LIBTARGET}
3062 SLIBNAME=${SLIBNAME}
3063 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3064 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3065 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3066 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3067 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3068 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3069 SAMPLES=$samples
3070 EOF
3071
3072 get_version(){
3073     name=$1
3074     file=$source_path/$2
3075     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3076     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3077     lcname=$(tolower $name)
3078     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3079     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3080 }
3081
3082 get_version LIBSWSCALE  libswscale/swscale.h
3083 get_version LIBPOSTPROC libpostproc/postprocess.h
3084 get_version LIBAVCODEC  libavcodec/avcodec.h
3085 get_version LIBAVDEVICE libavdevice/avdevice.h
3086 get_version LIBAVFORMAT libavformat/avformat.h
3087 get_version LIBAVUTIL   libavutil/avutil.h
3088 get_version LIBAVFILTER libavfilter/avfilter.h
3089
3090 cat > $TMPH <<EOF
3091 /* Automatically generated by configure - do not modify! */
3092 #ifndef FFMPEG_CONFIG_H
3093 #define FFMPEG_CONFIG_H
3094 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3095 #define FFMPEG_LICENSE "$(c_escape $license)"
3096 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3097 #define CC_TYPE "$cc_type"
3098 #define CC_VERSION $cc_version
3099 #define restrict $_restrict
3100 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3101 #define EXTERN_PREFIX "${extern_prefix}"
3102 #define EXTERN_ASM ${extern_prefix}
3103 EOF
3104
3105 test -n "$malloc_prefix" &&
3106     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3107
3108 if enabled small || disabled optimizations; then
3109     echo "#undef  av_always_inline"  >> $TMPH
3110     echo "#define av_always_inline"  >> $TMPH
3111 fi
3112
3113 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3114 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3115 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3116                                       $CONFIG_EXTRA      \
3117                                       $DECODER_LIST      \
3118                                       $ENCODER_LIST      \
3119                                       $HWACCEL_LIST      \
3120                                       $PARSER_LIST       \
3121                                       $BSF_LIST          \
3122                                       $DEMUXER_LIST      \
3123                                       $MUXER_LIST        \
3124                                       $FILTER_LIST       \
3125                                       $PROTOCOL_LIST     \
3126                                       $INDEV_LIST        \
3127                                       $OUTDEV_LIST       \
3128
3129 cat >>config.mak <<EOF
3130 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3131 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3132 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3133 EOF
3134
3135 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3136 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3137
3138 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3139 cp_if_changed $TMPH config.h
3140
3141 cat > $TMPH <<EOF
3142 /* Generated by ffconf */
3143 #ifndef AVUTIL_AVCONFIG_H
3144 #define AVUTIL_AVCONFIG_H
3145 EOF
3146
3147 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3148
3149 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3150
3151 cp_if_changed $TMPH libavutil/avconfig.h
3152
3153 test -n "$WARNINGS" && printf "\n$WARNINGS"
3154
3155 # build pkg-config files
3156
3157 pkgconfig_generate(){
3158 name=$1
3159 shortname=${name#lib}${build_suffix}
3160 comment=$2
3161 version=$3
3162 libs=$4
3163 requires=$5
3164 cat <<EOF > $name/$name.pc
3165 prefix=$prefix
3166 exec_prefix=\${prefix}
3167 libdir=$libdir
3168 includedir=$incdir
3169
3170 Name: $name
3171 Description: $comment
3172 Version: $version
3173 Requires: $(enabled shared || echo $requires)
3174 Requires.private: $(enabled shared && echo $requires)
3175 Conflicts:
3176 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3177 Libs.private: $(enabled shared && echo $libs)
3178 Cflags: -I\${includedir}
3179 EOF
3180 cat <<EOF > $name/$name-uninstalled.pc
3181 prefix=
3182 exec_prefix=
3183 libdir=\${pcfiledir}
3184 includedir=${source_path}
3185
3186 Name: $name
3187 Description: $comment
3188 Version: $version
3189 Requires: $requires
3190 Conflicts:
3191 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3192 Cflags: -I\${includedir}
3193 EOF
3194 }
3195
3196 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3197 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3198 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3199 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3200 enabled avfilter &&
3201     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3202 enabled postproc &&
3203     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3204 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"