Nit: fix alphabetical order
[libav.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     fast_unaligned
962 '
963
964 HAVE_LIST="
965     $ARCH_EXT_LIST
966     $HAVE_LIST_PUB
967     $THREADS_LIST
968     alsa_asoundlib_h
969     altivec_h
970     arpa_inet_h
971     attribute_may_alias
972     attribute_packed
973     bswap
974     closesocket
975     cmov
976     conio_h
977     dcbzl
978     dev_bktr_ioctl_bt848_h
979     dev_bktr_ioctl_meteor_h
980     dev_ic_bt8xx_h
981     dev_video_meteor_ioctl_meteor_h
982     dev_video_bktr_ioctl_bt848_h
983     dlfcn_h
984     dlopen
985     dos_paths
986     ebp_available
987     ebx_available
988     exp2
989     exp2f
990     fast_64bit
991     fast_clz
992     fast_cmov
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 dct_select="rdft"
1162 mdct_select="fft"
1163 rdft_select="fft"
1164
1165 # decoders / encoders / hardware accelerators
1166 aac_decoder_select="mdct rdft"
1167 aac_encoder_select="mdct"
1168 ac3_decoder_select="mdct ac3_parser"
1169 alac_encoder_select="lpc"
1170 amrnb_decoder_select="lsp"
1171 atrac1_decoder_select="mdct"
1172 atrac3_decoder_select="mdct"
1173 binkaudio_dct_decoder_select="mdct rdft dct"
1174 binkaudio_rdft_decoder_select="mdct rdft"
1175 cavs_decoder_select="golomb"
1176 cook_decoder_select="mdct"
1177 cscd_decoder_suggest="zlib"
1178 dca_decoder_select="mdct"
1179 dnxhd_encoder_select="aandct"
1180 dxa_decoder_select="zlib"
1181 eac3_decoder_select="ac3_decoder"
1182 eamad_decoder_select="aandct"
1183 eatgq_decoder_select="aandct"
1184 eatqi_decoder_select="aandct"
1185 ffv1_decoder_select="golomb"
1186 flac_decoder_select="golomb"
1187 flac_encoder_select="golomb lpc"
1188 flashsv_decoder_select="zlib"
1189 flashsv_encoder_select="zlib"
1190 flv_decoder_select="h263_decoder"
1191 flv_encoder_select="h263_encoder"
1192 h261_encoder_select="aandct"
1193 h263_decoder_select="h263_parser"
1194 h263_encoder_select="aandct"
1195 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1196 h263i_decoder_select="h263_decoder"
1197 h263p_encoder_select="h263_encoder"
1198 h264_decoder_select="golomb h264dsp"
1199 h264_dxva2_hwaccel_deps="dxva2api_h"
1200 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1201 h264_vaapi_hwaccel_select="vaapi"
1202 h264_vdpau_decoder_select="vdpau h264_decoder"
1203 imc_decoder_select="fft mdct"
1204 jpegls_decoder_select="golomb"
1205 jpegls_encoder_select="golomb"
1206 ljpeg_encoder_select="aandct"
1207 loco_decoder_select="golomb"
1208 mjpeg_encoder_select="aandct"
1209 mlp_decoder_select="mlp_parser"
1210 mp1float_decoder_select="dct"
1211 mp2float_decoder_select="dct"
1212 mp3adufloat_decoder_select="dct"
1213 mp3float_decoder_select="dct"
1214 mp3on4float_decoder_select="dct"
1215 mpeg1video_encoder_select="aandct"
1216 mpeg2video_encoder_select="aandct"
1217 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1218 mpeg4_encoder_select="h263_encoder"
1219 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1220 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1221 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1222 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1223 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1224 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1225 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1226 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1227 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1228 msmpeg4v1_decoder_select="h263_decoder"
1229 msmpeg4v1_encoder_select="h263_encoder"
1230 msmpeg4v2_decoder_select="h263_decoder"
1231 msmpeg4v2_encoder_select="h263_encoder"
1232 msmpeg4v3_decoder_select="h263_decoder"
1233 msmpeg4v3_encoder_select="h263_encoder"
1234 nellymoser_decoder_select="mdct"
1235 nellymoser_encoder_select="mdct"
1236 png_decoder_select="zlib"
1237 png_encoder_select="zlib"
1238 qcelp_decoder_select="lsp"
1239 qdm2_decoder_select="mdct rdft"
1240 ra_144_encoder_select="lpc"
1241 rv10_decoder_select="h263_decoder"
1242 rv10_encoder_select="h263_encoder"
1243 rv20_decoder_select="h263_decoder"
1244 rv20_encoder_select="h263_encoder"
1245 rv30_decoder_select="golomb h264dsp"
1246 rv40_decoder_select="golomb h264dsp"
1247 shorten_decoder_select="golomb"
1248 sipr_decoder_select="lsp"
1249 snow_decoder_select="dwt"
1250 snow_encoder_select="aandct dwt"
1251 sonic_decoder_select="golomb"
1252 sonic_encoder_select="golomb"
1253 sonic_ls_encoder_select="golomb"
1254 svq1_encoder_select="aandct"
1255 svq3_decoder_select="golomb h264dsp"
1256 svq3_decoder_suggest="zlib"
1257 theora_decoder_select="vp3_decoder"
1258 tiff_decoder_suggest="zlib"
1259 tiff_encoder_suggest="zlib"
1260 truehd_decoder_select="mlp_decoder"
1261 tscc_decoder_select="zlib"
1262 twinvq_decoder_select="mdct lsp"
1263 vc1_decoder_select="h263_decoder"
1264 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1265 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1266 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1267 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1268 vorbis_decoder_select="mdct"
1269 vorbis_encoder_select="mdct"
1270 vp6a_decoder_select="vp6_decoder"
1271 vp6f_decoder_select="vp6_decoder"
1272 vp8_decoder_select="h264dsp"
1273 wmapro_decoder_select="mdct"
1274 wmav1_decoder_select="mdct"
1275 wmav1_encoder_select="mdct"
1276 wmav2_decoder_select="mdct"
1277 wmav2_encoder_select="mdct"
1278 wmavoice_decoder_select="lsp rdft dct mdct"
1279 wmv1_decoder_select="h263_decoder"
1280 wmv1_encoder_select="h263_encoder"
1281 wmv2_decoder_select="h263_decoder"
1282 wmv2_encoder_select="h263_encoder"
1283 wmv3_decoder_select="vc1_decoder"
1284 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1285 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1286 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1287 zlib_decoder_select="zlib"
1288 zlib_encoder_select="zlib"
1289 zmbv_decoder_select="zlib"
1290 zmbv_encoder_select="zlib"
1291
1292 vaapi_deps="va_va_h"
1293 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1294
1295 # parsers
1296 h264_parser_select="golomb h264dsp"
1297
1298 # external libraries
1299 libdirac_decoder_deps="libdirac !libschroedinger"
1300 libdirac_encoder_deps="libdirac"
1301 libfaac_encoder_deps="libfaac"
1302 libgsm_decoder_deps="libgsm"
1303 libgsm_encoder_deps="libgsm"
1304 libgsm_ms_decoder_deps="libgsm"
1305 libgsm_ms_encoder_deps="libgsm"
1306 libmp3lame_encoder_deps="libmp3lame"
1307 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1308 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1309 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1310 libopenjpeg_decoder_deps="libopenjpeg"
1311 libschroedinger_decoder_deps="libschroedinger"
1312 libschroedinger_encoder_deps="libschroedinger"
1313 libspeex_decoder_deps="libspeex"
1314 libtheora_encoder_deps="libtheora"
1315 libvorbis_encoder_deps="libvorbis"
1316 libvpx_decoder_deps="libvpx"
1317 libvpx_encoder_deps="libvpx"
1318 libx264_encoder_deps="libx264"
1319 libxvid_encoder_deps="libxvid"
1320
1321 # demuxers / muxers
1322 ac3_demuxer_deps="ac3_parser"
1323 asf_stream_muxer_select="asf_muxer"
1324 avisynth_demuxer_deps="avisynth"
1325 dirac_demuxer_deps="dirac_parser"
1326 eac3_demuxer_select="ac3_parser"
1327 ipod_muxer_select="mov_muxer"
1328 libnut_demuxer_deps="libnut"
1329 libnut_muxer_deps="libnut"
1330 matroska_audio_muxer_select="matroska_muxer"
1331 matroska_demuxer_suggest="zlib bzlib"
1332 mov_demuxer_suggest="zlib"
1333 mp3_demuxer_deps="mpegaudio_parser"
1334 mp4_muxer_select="mov_muxer"
1335 mpegtsraw_demuxer_select="mpegts_demuxer"
1336 mxf_d10_muxer_select="mxf_muxer"
1337 ogg_demuxer_select="golomb"
1338 psp_muxer_select="mov_muxer"
1339 rtsp_demuxer_deps="sdp_demuxer"
1340 rtsp_muxer_deps="sdp_demuxer"
1341 rtsp_muxer_select="rtp_muxer"
1342 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1343 sdp_demuxer_select="asf_demuxer rm_demuxer"
1344 spdif_muxer_select="aac_parser"
1345 tg2_muxer_select="mov_muxer"
1346 tgp_muxer_select="mov_muxer"
1347 w64_demuxer_deps="wav_demuxer"
1348
1349 # indevs / outdevs
1350 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1351 alsa_indev_extralibs="-lasound"
1352 alsa_outdev_deps="alsa_asoundlib_h"
1353 alsa_outdev_extralibs="-lasound"
1354 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1355 dv1394_indev_deps="dv1394 dv_demuxer"
1356 jack_indev_deps="jack_jack_h"
1357 jack_indev_extralibs="-ljack"
1358 libdc1394_indev_deps="libdc1394"
1359 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1360 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1361 v4l_indev_deps="linux_videodev_h"
1362 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1363 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1364 vfwcap_indev_extralibs="-lavicap32"
1365 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1366 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1367
1368 # protocols
1369 gopher_protocol_deps="network"
1370 http_protocol_deps="network"
1371 http_protocol_select="tcp_protocol"
1372 mmst_protocol_deps="network"
1373 rtmp_protocol_select="tcp_protocol"
1374 rtp_protocol_select="udp_protocol"
1375 tcp_protocol_deps="network"
1376 udp_protocol_deps="network"
1377
1378 # filters
1379 movie_filter_deps="avfilter_lavf"
1380 avfilter_lavf_deps="avformat"
1381
1382 # libraries
1383 avdevice_deps="avcodec avformat"
1384 avformat_deps="avcodec"
1385
1386 # programs
1387 ffmpeg_deps="avcodec avformat swscale"
1388 ffmpeg_select="buffer_filter"
1389 ffplay_deps="avcodec avformat swscale sdl"
1390 ffplay_select="rdft"
1391 ffprobe_deps="avcodec avformat"
1392 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1393 ffserver_extralibs='$ldl'
1394
1395 doc_deps="texi2html"
1396
1397 # tests
1398
1399 test_deps(){
1400     suf1=$1
1401     suf2=$2
1402     shift 2
1403     for v; do
1404         dep=${v%=*}
1405         tests=${v#*=}
1406         for name in ${tests}; do
1407             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1408         done
1409     done
1410 }
1411
1412 test_deps _encoder _decoder                                             \
1413     ac3                                                                 \
1414     adpcm_g726=g726                                                     \
1415     adpcm_ima_qt                                                        \
1416     adpcm_ima_wav                                                       \
1417     adpcm_ms                                                            \
1418     adpcm_swf                                                           \
1419     adpcm_yamaha=adpcm_yam                                              \
1420     alac                                                                \
1421     asv1                                                                \
1422     asv2                                                                \
1423     bmp                                                                 \
1424     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1425     dvvideo="dv dv50"                                                   \
1426     ffv1                                                                \
1427     flac                                                                \
1428     flashsv                                                             \
1429     flv                                                                 \
1430     gif                                                                 \
1431     h261                                                                \
1432     h263="h263 h263p"                                                   \
1433     huffyuv                                                             \
1434     jpegls                                                              \
1435     mjpeg="jpg mjpeg ljpeg"                                             \
1436     mp2                                                                 \
1437     mpeg1video="mpeg mpeg1b"                                            \
1438     mpeg2video="mpeg2 mpeg2thread"                                      \
1439     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1440     msmpeg4v1=msmpeg4                                                   \
1441     msmpeg4v2                                                           \
1442     pbm=pbmpipe                                                         \
1443     pcx                                                                 \
1444     pgm="pgm pgmpipe"                                                   \
1445     ppm="ppm ppmpipe"                                                   \
1446     rawvideo="rgb yuv"                                                  \
1447     roq                                                                 \
1448     rv10                                                                \
1449     rv20                                                                \
1450     sgi                                                                 \
1451     snow="snow snowll"                                                  \
1452     svq1                                                                \
1453     targa=tga                                                           \
1454     tiff                                                                \
1455     wmav1                                                               \
1456     wmav2                                                               \
1457     wmv1                                                                \
1458     wmv2                                                                \
1459
1460 test_deps _muxer _demuxer                                               \
1461     aiff                                                                \
1462     pcm_alaw=alaw                                                       \
1463     asf                                                                 \
1464     au                                                                  \
1465     avi                                                                 \
1466     dv=dv_fmt                                                           \
1467     ffm                                                                 \
1468     flv=flv_fmt                                                         \
1469     gxf                                                                 \
1470     matroska=mkv                                                        \
1471     mmf                                                                 \
1472     mov                                                                 \
1473     pcm_mulaw=mulaw                                                     \
1474     mxf                                                                 \
1475     nut                                                                 \
1476     ogg                                                                 \
1477     rawvideo=pixfmt                                                     \
1478     rm                                                                  \
1479     swf                                                                 \
1480     mpegts=ts                                                           \
1481     voc                                                                 \
1482     wav                                                                 \
1483     yuv4mpegpipe=yuv4mpeg                                               \
1484
1485 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1486
1487 # default parameters
1488
1489 logfile="config.log"
1490
1491 # installation paths
1492 prefix_default="/usr/local"
1493 bindir_default='${prefix}/bin'
1494 datadir_default='${prefix}/share/ffmpeg'
1495 incdir_default='${prefix}/include'
1496 libdir_default='${prefix}/lib'
1497 mandir_default='${prefix}/share/man'
1498 shlibdir_default="$libdir_default"
1499
1500 # toolchain
1501 ar_default="ar"
1502 cc_default="gcc"
1503 cc_version=\"unknown\"
1504 host_cc_default="gcc"
1505 ln_s="ln -sf"
1506 nm_default="nm"
1507 objformat="elf"
1508 ranlib="ranlib"
1509 strip_default="strip"
1510 yasmexe="yasm"
1511 nogas=":"
1512
1513 nm_opts='-g'
1514
1515 # machine
1516 arch_default=$(uname -m)
1517 cpu="generic"
1518
1519 # OS
1520 target_os_default=$(tolower $(uname -s))
1521 host_os=$target_os_default
1522
1523 # configurable options
1524 enable avcodec
1525 enable avdevice
1526 enable avfilter
1527 enable avformat
1528 enable avutil
1529 enable asm
1530 enable debug
1531 enable doc
1532 enable fastdiv
1533 enable ffmpeg
1534 enable ffplay
1535 enable ffprobe
1536 enable ffserver
1537 enable mpegaudio_hp
1538 enable network
1539 enable optimizations
1540 enable protocols
1541 enable static
1542 enable stripping
1543 enable swscale
1544 enable swscale_alpha
1545
1546 # build settings
1547 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1548 FFSERVERLDFLAGS=-Wl,-E
1549 LIBPREF="lib"
1550 LIBSUF=".a"
1551 FULLNAME='$(NAME)$(BUILDSUF)'
1552 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1553 SLIBPREF="lib"
1554 SLIBSUF=".so"
1555 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1556 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1557 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1558 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1559
1560 CC_O='-o $@'
1561
1562 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1563 host_libs='-lm'
1564
1565 target_path='$(CURDIR)'
1566
1567 # since the object filename is not given with the -MM flag, the compiler
1568 # is only able to print the basename, and we must add the path ourselves
1569 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1570 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1571
1572 # find source path
1573 source_path="$(dirname "$0")"
1574 enable source_path_used
1575 if test -f configure; then
1576     source_path="$(pwd)"
1577     disable source_path_used
1578 else
1579     source_path="$(cd "$source_path"; pwd)"
1580     echo "$source_path" | grep -q '[[:blank:]]' &&
1581         die "Out of tree builds are impossible with whitespace in source path."
1582     test -e "$source_path/config.h" &&
1583         die "Out of tree builds are impossible with config.h in source dir."
1584 fi
1585
1586 for v in "$@"; do
1587     r=${v#*=}
1588     l=${v%"$r"}
1589     r=$(sh_quote "$r")
1590     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1591 done
1592
1593 find_things(){
1594     thing=$1
1595     pattern=$2
1596     file=$source_path/$3
1597     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1598 }
1599
1600 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1601 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1602 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1603 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1604 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1605 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1606 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1607 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1608 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1609 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1610 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1611
1612 find_tests(){
1613     map 'echo ${v}_test' $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1614 }
1615
1616 ACODEC_TESTS=$(find_tests acodec)
1617 VCODEC_TESTS=$(find_tests vsynth1)
1618 LAVF_TESTS=$(find_tests lavf)
1619
1620 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1621
1622 for n in $COMPONENT_LIST; do
1623     v=$(toupper ${n%s})_LIST
1624     eval enable \$$v
1625     eval ${n}_if_any="\$$v"
1626 done
1627
1628 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS
1629
1630 die_unknown(){
1631     echo "Unknown option \"$1\"."
1632     echo "See $0 --help for available options."
1633     exit 1
1634 }
1635
1636 show_list() {
1637     suffix=_$1
1638     shift
1639     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1640     exit 0
1641 }
1642
1643 for opt do
1644     optval="${opt#*=}"
1645     case "$opt" in
1646     --extra-ldflags=*) add_ldflags $optval
1647     ;;
1648     --extra-libs=*) add_extralibs $optval
1649     ;;
1650     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1651     ;;
1652     --enable-debug=*) debuglevel="$optval"
1653     ;;
1654     --disable-everything)
1655     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1656     ;;
1657     --enable-*=*|--disable-*=*)
1658     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1659     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1660     eval list=\$$(toupper $thing)_LIST
1661     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1662     $action $(filter "$name" $list)
1663     ;;
1664     --enable-?*|--disable-?*)
1665     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1666     if is_in $option $COMPONENT_LIST; then
1667         test $action = disable && action=unset
1668         eval $action \$$(toupper ${option%s})_LIST
1669     elif is_in $option $CMDLINE_SELECT; then
1670         $action $option
1671     else
1672         die_unknown $opt
1673     fi
1674     ;;
1675     --list-*)
1676         NAME="${opt#--list-}"
1677         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1678         NAME=${NAME%s}
1679         eval show_list $NAME \$$(toupper $NAME)_LIST
1680     ;;
1681     --help|-h) show_help
1682     ;;
1683     *)
1684     optname="${opt%%=*}"
1685     optname="${optname#--}"
1686     optname=$(echo "$optname" | sed 's/-/_/g')
1687     if is_in $optname $CMDLINE_SET; then
1688         eval $optname='$optval'
1689     elif is_in $optname $CMDLINE_APPEND; then
1690         append $optname "$optval"
1691     else
1692          die_unknown $opt
1693     fi
1694     ;;
1695     esac
1696 done
1697
1698 disabled logging && logfile=/dev/null
1699
1700 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1701 set >> $logfile
1702
1703 test -n "$cross_prefix" && enable cross_compile
1704
1705 if enabled cross_compile; then
1706     test -n "$arch" && test -n "$target_os" ||
1707         die "Must specify target arch and OS when cross-compiling"
1708 fi
1709
1710 set_default arch target_os
1711
1712 ar_default="${cross_prefix}${ar_default}"
1713 cc_default="${cross_prefix}${cc_default}"
1714 nm_default="${cross_prefix}${nm_default}"
1715 ranlib="${cross_prefix}${ranlib}"
1716 strip_default="${cross_prefix}${strip_default}"
1717
1718 sysinclude_default="${sysroot}/usr/include"
1719
1720 set_default cc nm strip sysinclude
1721 enabled cross_compile || host_cc_default=$cc
1722 set_default host_cc
1723
1724 exesuf() {
1725     case $1 in
1726         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1727     esac
1728 }
1729
1730 EXESUF=$(exesuf $target_os)
1731 HOSTEXESUF=$(exesuf $host_os)
1732
1733 # set temporary file name
1734 : ${TMPDIR:=$TEMPDIR}
1735 : ${TMPDIR:=$TMP}
1736 : ${TMPDIR:=/tmp}
1737
1738 if ! check_cmd type mktemp; then
1739     # simple replacement for missing mktemp
1740     # NOT SAFE FOR GENERAL USE
1741     mktemp(){
1742         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1743     }
1744 fi
1745
1746 tmpfile(){
1747     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1748         (set -C; exec > $tmp) 2>/dev/null ||
1749         die "Unable to create temporary file in $TMPDIR."
1750     append TMPFILES $tmp
1751     eval $1=$tmp
1752 }
1753
1754 trap 'rm -f -- $TMPFILES' EXIT
1755 trap exit HUP INT TERM
1756
1757 tmpfile TMPC  .c
1758 tmpfile TMPE  $EXESUF
1759 tmpfile TMPH  .h
1760 tmpfile TMPO  .o
1761 tmpfile TMPS  .S
1762 tmpfile TMPV  .ver
1763 tmpfile TMPSH .sh
1764
1765 unset -f mktemp
1766
1767 # make sure we can execute files in $TMPDIR
1768 cat > $TMPSH 2>> $logfile <<EOF
1769 #! /bin/sh
1770 EOF
1771 chmod +x $TMPSH >> $logfile 2>&1
1772 if ! $TMPSH >> $logfile 2>&1; then
1773     cat <<EOF
1774 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1775 variable to another directory and make sure that it is not mounted noexec.
1776 EOF
1777     die "Sanity test failed."
1778 fi
1779
1780 filter_cflags=echo
1781 filter_cppflags=echo
1782 filter_asflags=echo
1783
1784 if   $cc -v 2>&1 | grep -qi ^gcc; then
1785     cc_type=gcc
1786     cc_version=__VERSION__
1787     if ! $cc -dumpversion | grep -q '^2\.'; then
1788         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1789         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1790     fi
1791     speed_cflags='-O3'
1792     size_cflags='-Os'
1793 elif $cc --version 2>/dev/null | grep -q Intel; then
1794     cc_type=icc
1795     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1796     CC_DEPFLAGS='-MMD'
1797     AS_DEPFLAGS='-MMD'
1798     speed_cflags='-O3'
1799     size_cflags='-Os'
1800     noopt_cflags='-O1'
1801 elif $cc -v 2>&1 | grep -q xlc; then
1802     cc_type=xlc
1803     cc_version="AV_STRINGIFY(__IBMC__)"
1804     speed_cflags='-O5'
1805     size_cflags='-O5 -qcompact'
1806 elif $cc -V 2>/dev/null | grep -q Compaq; then
1807     cc_type=ccc
1808     cc_version="AV_STRINGIFY(__DECC_VER)"
1809     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1810     debuglevel=3
1811     add_ldflags -Wl,-z,now # calls to libots crash without this
1812     speed_cflags='-fast'
1813     size_cflags='-O1'
1814 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1815     test -d "$sysroot" || die "No valid sysroot specified."
1816     cc_type=armcc
1817     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1818     armcc_conf="$PWD/armcc.conf"
1819     $cc --arm_linux_configure                 \
1820         --arm_linux_config_file="$armcc_conf" \
1821         --configure_sysroot="$sysroot"        \
1822         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1823         die "Error creating armcc configuration file."
1824     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1825     as_default="${cross_prefix}gcc"
1826     CC_DEPFLAGS='-MMD'
1827     AS_DEPFLAGS='-MMD'
1828     speed_cflags='-O3'
1829     size_cflags='-Os'
1830 elif $cc -version 2>/dev/null | grep -q TMS470; then
1831     cc_type=tms470
1832     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1833     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1834     CC_O='-fr=$(@D)'
1835     as_default="${cross_prefix}gcc"
1836     ld_default="${cross_prefix}gcc"
1837     TMPO=$(basename $TMPC .c).o
1838     append TMPFILES $TMPO
1839     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1840     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1841     AS_DEPFLAGS='-MMD'
1842     speed_cflags='-O3 -mf=5'
1843     size_cflags='-O3 -mf=2'
1844     filter_cflags=tms470_flags
1845     tms470_flags(){
1846         for flag; do
1847             case $flag in
1848                 -march=*|-mcpu=*)
1849                     case "${flag#*=}" in
1850                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1851                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1852                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1853                         armv6*|arm11*)          echo -mv=6   ;;
1854                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1855                                                 echo -mv=5e  ;;
1856                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1857                     esac
1858                     ;;
1859                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1860                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1861                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1862                 -msoft-float)   echo --float_support=vfplib       ;;
1863                 -O[0-3]|-mf=*)  echo $flag                        ;;
1864                 -g)             echo -g -mn                       ;;
1865                 -pds=*)         echo $flag                        ;;
1866             esac
1867         done
1868     }
1869 elif $cc -v 2>&1 | grep -q clang; then
1870     cc_type=clang
1871     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1872         cc_version=__clang_version__ || cc_version=__VERSION__
1873     CC_DEPFLAGS='-MMD'
1874     AS_DEPFLAGS='-MMD'
1875     speed_cflags='-O3'
1876     size_cflags='-Os'
1877 elif $cc -V 2>&1 | grep -q Sun; then
1878     cc_type=suncc
1879     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1880     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1881     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1882     speed_cflags='-O5'
1883     size_cflags='-O5 -xspace'
1884     filter_cflags=suncc_flags
1885     suncc_flags(){
1886         for flag; do
1887             case $flag in
1888                 -march=*|-mcpu=*)
1889                     case "${flag#*=}" in
1890                         native)                   echo -xtarget=native       ;;
1891                         v9|niagara)               echo -xarch=sparc          ;;
1892                         ultrasparc)               echo -xarch=sparcvis       ;;
1893                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1894                         i586|pentium)             echo -xchip=pentium        ;;
1895                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1896                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1897                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1898                         pentium4*)          echo -xtarget=pentium4           ;;
1899                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1900                         *-sse3)             echo -xarch=sse3                 ;;
1901                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1902                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1903                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1904                         k8|opteron|athlon64|athlon-fx)
1905                                                   echo -xarch=sse2a          ;;
1906                         athlon*)                  echo -xarch=pentium_proa   ;;
1907                     esac
1908                     ;;
1909                 -std=c99)             echo -xc99              ;;
1910                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1911                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1912                 -W*,*)                echo $flag              ;;
1913                 -f*-*|-W*)                                    ;;
1914                 *)                    echo $flag              ;;
1915             esac
1916         done
1917     }
1918 fi
1919
1920 test -n "$cc_type" && enable $cc_type ||
1921     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1922
1923 : ${as_default:=$cc}
1924 : ${dep_cc_default:=$cc}
1925 : ${ld_default:=$cc}
1926 set_default ar as dep_cc ld
1927
1928 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1929 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1930
1931 add_cflags $extra_cflags
1932 add_asflags $extra_cflags
1933
1934 if test -n "$sysroot"; then
1935     case "$cc_type" in
1936         gcc)
1937             add_cppflags --sysroot="$sysroot"
1938             add_ldflags --sysroot="$sysroot"
1939         ;;
1940         tms470)
1941             add_cppflags -I"$sysinclude"
1942             add_ldflags  --sysroot="$sysroot"
1943         ;;
1944         clang)
1945             add_cppflags -isysroot "$sysroot"
1946             add_ldflags -isysroot "$sysroot"
1947         ;;
1948     esac
1949 fi
1950
1951 if test "$cpu" = host; then
1952     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1953
1954     case "$cc_type" in
1955         gcc)
1956             check_native(){
1957                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1958                 sed -n "/$1=/{
1959                             s/.*$1=\\([^ ]*\\).*/\\1/
1960                             p
1961                             q
1962                         }" $TMPE
1963             }
1964             cpu=$(check_native -march || check_native -mcpu)
1965         ;;
1966     esac
1967
1968     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1969 fi
1970
1971 # Deal with common $arch aliases
1972 case "$arch" in
1973     arm*)
1974         arch="arm"
1975     ;;
1976     mips|mipsel|IP*)
1977         arch="mips"
1978     ;;
1979     mips64*)
1980         arch="mips"
1981         subarch="mips64"
1982     ;;
1983     parisc|hppa)
1984         arch="parisc"
1985     ;;
1986     parisc64|hppa64)
1987         arch="parisc"
1988         subarch="parisc64"
1989     ;;
1990     "Power Macintosh"|ppc|powerpc)
1991         arch="ppc"
1992     ;;
1993     ppc64|powerpc64)
1994         arch="ppc"
1995         subarch="ppc64"
1996     ;;
1997     s390|s390x)
1998         arch="s390"
1999     ;;
2000     sh4|sh)
2001         arch="sh4"
2002     ;;
2003     sun4u|sparc64)
2004         arch="sparc"
2005         subarch="sparc64"
2006     ;;
2007     i[3-6]86|i86pc|BePC|x86_64|amd64)
2008         arch="x86"
2009     ;;
2010 esac
2011
2012 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2013 enable $arch
2014
2015 # Add processor-specific flags
2016 if test "$cpu" = generic; then
2017     : do nothing
2018 elif enabled ppc; then
2019
2020     case $(tolower $cpu) in
2021         601|ppc601|powerpc601)
2022             cpuflags="-mcpu=601"
2023             disable altivec
2024         ;;
2025         603*|ppc603*|powerpc603*)
2026             cpuflags="-mcpu=603"
2027             disable altivec
2028         ;;
2029         604*|ppc604*|powerpc604*)
2030             cpuflags="-mcpu=604"
2031             disable altivec
2032         ;;
2033         g3|75*|ppc75*|powerpc75*)
2034             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2035             disable altivec
2036         ;;
2037         g4|745*|ppc745*|powerpc745*)
2038             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2039         ;;
2040         74*|ppc74*|powerpc74*)
2041             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2042         ;;
2043         g5|970|ppc970|powerpc970|power4*)
2044             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2045         ;;
2046         cell)
2047             cpuflags="-mcpu=cell"
2048             enable ldbrx
2049         ;;
2050         e500v2)
2051             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2052             disable altivec
2053         ;;
2054         e500)
2055             cpuflags="-mcpu=8540 -mhard-float"
2056             disable altivec
2057         ;;
2058     esac
2059
2060 elif enabled x86; then
2061
2062     case $cpu in
2063         i[345]86|pentium)
2064             cpuflags="-march=$cpu"
2065             disable mmx
2066         ;;
2067         # targets that do NOT support conditional mov (cmov)
2068         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2069             cpuflags="-march=$cpu"
2070             disable cmov
2071         ;;
2072         # targets that do support conditional mov (cmov)
2073         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2074             cpuflags="-march=$cpu"
2075             enable cmov
2076             enable fast_cmov
2077         ;;
2078         # targets that do support conditional mov but on which it's slow
2079         pentium4|pentium4m|prescott|nocona)
2080             cpuflags="-march=$cpu"
2081             enable cmov
2082             disable fast_cmov
2083         ;;
2084     esac
2085
2086 elif enabled sparc; then
2087
2088     case $cpu in
2089         niagara)
2090             cpuflags="-mcpu=$cpu"
2091             disable vis
2092         ;;
2093         sparc64)
2094             cpuflags="-mcpu=v9"
2095         ;;
2096     esac
2097
2098 elif enabled arm; then
2099
2100     case $cpu in
2101         armv*)
2102             cpuflags="-march=$cpu"
2103         ;;
2104         *)
2105             cpuflags="-mcpu=$cpu"
2106         ;;
2107     esac
2108
2109 elif enabled alpha; then
2110
2111     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2112
2113 elif enabled bfin; then
2114
2115     cpuflags="-mcpu=$cpu"
2116
2117 elif enabled mips; then
2118
2119     cpuflags="-march=$cpu"
2120
2121 elif enabled avr32; then
2122
2123     case $cpu in
2124         ap7[02]0[0-2])
2125             subarch="avr32_ap"
2126             cpuflags="-mpart=$cpu"
2127         ;;
2128         ap)
2129             subarch="avr32_ap"
2130             cpuflags="-march=$cpu"
2131         ;;
2132         uc3[ab]*)
2133             subarch="avr32_uc"
2134             cpuflags="-mcpu=$cpu"
2135         ;;
2136         uc)
2137             subarch="avr32_uc"
2138             cpuflags="-march=$cpu"
2139         ;;
2140     esac
2141
2142 fi
2143
2144 add_cflags $cpuflags
2145 add_asflags $cpuflags
2146
2147 # compiler sanity check
2148 check_exec <<EOF
2149 int main(void){ return 0; }
2150 EOF
2151 if test "$?" != 0; then
2152     echo "$cc is unable to create an executable file."
2153     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2154         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2155         echo "Only do this if you know what cross compiling means."
2156     fi
2157     die "C compiler test failed."
2158 fi
2159
2160 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2161 check_cflags -std=c99
2162 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2163 #include <stdlib.h>
2164 EOF
2165 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2166 #include <stdlib.h>
2167 EOF
2168
2169 check_host_cflags -std=c99
2170
2171 case "$arch" in
2172     alpha|ia64|mips|parisc|sparc)
2173         spic=$shared
2174     ;;
2175     x86)
2176         subarch="x86_32"
2177         check_cc <<EOF && subarch="x86_64"
2178         int test[(int)sizeof(char*) - 7];
2179 EOF
2180         if test "$subarch" = "x86_64"; then
2181             spic=$shared
2182         fi
2183     ;;
2184 esac
2185
2186 enable $subarch
2187 enabled spic && enable pic
2188
2189 # OS specific
2190 case $target_os in
2191     haiku)
2192         prefix_default="/boot/common"
2193         network_extralibs="-lnetwork"
2194         ;;
2195     sunos)
2196         FFSERVERLDFLAGS=""
2197         SHFLAGS='-shared -Wl,-h,$$(@F)'
2198         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2199         network_extralibs="-lsocket -lnsl"
2200         add_cppflags -D__EXTENSIONS__
2201         nm_opts='-P -g'
2202         ;;
2203     netbsd)
2204         oss_indev_extralibs="-lossaudio"
2205         oss_outdev_extralibs="-lossaudio"
2206         add_cppflags -D_XOPEN_SOURCE=600
2207         ;;
2208     openbsd)
2209         enable malloc_aligned
2210         # On OpenBSD 4.5. the compiler does not use PIC unless
2211         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2212         # however the generated executable will not do anything
2213         # (simply quits with exit-code 1, no crash, no output).
2214         # Thus explicitly enable PIC here.
2215         enable pic
2216         SHFLAGS='-shared'
2217         oss_indev_extralibs="-lossaudio"
2218         oss_outdev_extralibs="-lossaudio"
2219         ;;
2220     freebsd|dragonfly)
2221         enable malloc_aligned
2222         ;;
2223     bsd/os)
2224         add_extralibs -lpoll -lgnugetopt
2225         strip="strip -d"
2226         ;;
2227     darwin)
2228         enable malloc_aligned
2229         gas="gas-preprocessor.pl $cc"
2230         enabled ppc && add_asflags -force_cpusubtype_ALL
2231         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2232         strip="${strip} -x"
2233         add_ldflags -Wl,-dynamic,-search_paths_first
2234         SLIBSUF=".dylib"
2235         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2236         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2237         FFSERVERLDFLAGS=-Wl,-bind_at_load
2238         objformat="macho"
2239         enabled x86_64 && objformat="macho64"
2240         enabled_any pic shared ||
2241             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2242         ;;
2243     mingw32*)
2244         if test $target_os = "mingw32ce"; then
2245             disable network
2246         else
2247             target_os=mingw32
2248         fi
2249         LIBTARGET=i386
2250         if enabled x86_64; then
2251             enable malloc_aligned
2252             LIBTARGET=x64
2253         elif enabled arm; then
2254             LIBTARGET=arm
2255         fi
2256         shlibdir_default="$bindir_default"
2257         disable ffserver
2258         SLIBPREF=""
2259         SLIBSUF=".dll"
2260         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2261         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2262         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2263         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2264             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2265             install -d "$(LIBDIR)"; \
2266             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2267         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2268         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2269         objformat="win32"
2270         enable dos_paths
2271         check_cflags -fno-common
2272         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2273                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2274                 die "ERROR: MinGW runtime version must be >= 3.15."
2275         ;;
2276     cygwin*)
2277         target_os=cygwin
2278         shlibdir_default="$bindir_default"
2279         SLIBPREF="cyg"
2280         SLIBSUF=".dll"
2281         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2282         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2283         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2284         objformat="win32"
2285         enable dos_paths
2286         check_cflags -fno-common
2287         ;;
2288     *-dos|freedos|opendos)
2289         disable ffplay ffserver
2290         disable $INDEV_LIST $OUTDEV_LIST
2291         network_extralibs="-lsocket"
2292         objformat="coff"
2293         enable dos_paths
2294         ;;
2295     linux)
2296         enable dv1394
2297         ;;
2298     irix*)
2299         target_os=irix
2300         ranlib="echo ignoring ranlib"
2301         ;;
2302     os/2*)
2303         strip="lxlite"
2304         ln_s="cp -f"
2305         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2306         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2307         FFSERVERLDFLAGS=""
2308         LIBSUF="_s.a"
2309         SLIBPREF=""
2310         SLIBSUF=".dll"
2311         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2312         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2313         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2314           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2315           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2316           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2317           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2318           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2319         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2320           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2321         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2322         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2323         enable dos_paths
2324         ;;
2325     gnu/kfreebsd)
2326         ;;
2327     gnu)
2328         ;;
2329     none)
2330         ;;
2331     *)
2332         die "Unknown OS '$target_os'."
2333         ;;
2334 esac
2335
2336 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2337
2338 set_default $PATHS_LIST
2339
2340 # we need to build at least one lib type
2341 if ! enabled_any static shared; then
2342     cat <<EOF
2343 At least one library type must be built.
2344 Specify --enable-static to build the static libraries or --enable-shared to
2345 build the shared libraries as well. To only build the shared libraries specify
2346 --disable-static in addition to --enable-shared.
2347 EOF
2348     exit 1;
2349 fi
2350
2351 disabled static && LIBNAME=""
2352
2353 die_license_disabled() {
2354     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2355 }
2356
2357 die_license_disabled gpl libx264
2358 die_license_disabled gpl libxvid
2359 die_license_disabled gpl postproc
2360 die_license_disabled gpl x11grab
2361
2362 die_license_disabled nonfree libfaac
2363
2364 die_license_disabled version3 libopencore_amrnb
2365 die_license_disabled version3 libopencore_amrwb
2366
2367 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2368
2369 check_deps $ARCH_EXT_LIST
2370
2371 disabled optimizations || check_cflags -fomit-frame-pointer
2372
2373 enable_pic() {
2374     enable pic
2375     add_cppflags -DPIC
2376     add_cflags   -fPIC
2377     add_asflags  -fPIC
2378 }
2379
2380 enabled pic && enable_pic
2381
2382 check_cc <<EOF || die "Symbol mangling check failed."
2383 int ff_extern;
2384 EOF
2385 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2386 extern_prefix=${sym%%ff_extern*}
2387
2388 check_cc <<EOF && enable inline_asm
2389 void foo(void) { __asm__ volatile ("" ::); }
2390 EOF
2391
2392 _restrict=
2393 for restrict_keyword in restrict __restrict__ __restrict; do
2394     check_cc <<EOF && _restrict=$restrict_keyword && break
2395 void foo(char * $restrict_keyword p);
2396 EOF
2397 done
2398
2399 check_cc <<EOF && enable attribute_packed
2400 struct { int x; } __attribute__((packed)) x;
2401 EOF
2402
2403 check_cc <<EOF && enable attribute_may_alias
2404 union { int x; } __attribute__((may_alias)) x;
2405 EOF
2406
2407 check_cc <<EOF || die "endian test failed"
2408 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2409 EOF
2410 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2411
2412 if enabled alpha; then
2413
2414     check_cflags -mieee
2415
2416 elif enabled arm; then
2417
2418     check_cflags -marm
2419     nogas=die
2420
2421     check_ld <<EOF && enable vfp_args
2422 __asm__ (".eabi_attribute 28, 1");
2423 int main(void) { return 0; }
2424 EOF
2425
2426     # We have to check if pld is a nop and disable it.
2427     check_asm pld '"pld [r0]"'
2428
2429     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2430     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2431     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2432     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2433     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2434     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2435
2436     enabled_all armv6t2 shared !pic && enable_pic
2437
2438 elif enabled mips; then
2439
2440     check_asm loongson '"dmult.g $1, $2, $3"'
2441     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2442
2443 elif enabled ppc; then
2444
2445     enable local_aligned_8 local_aligned_16
2446
2447     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2448     check_asm ibm_asm   '"add 0, 0, 0"'
2449     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2450     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2451
2452     # AltiVec flags: The FSF version of GCC differs from the Apple version
2453     if enabled altivec; then
2454         nogas=warn
2455         check_cflags -maltivec -mabi=altivec &&
2456         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2457         check_cflags -faltivec
2458
2459         # check if our compiler supports Motorola AltiVec C API
2460         check_cc <<EOF || disable altivec
2461 $inc_altivec_h
2462 int main(void) {
2463     vector signed int v1, v2, v3;
2464     v1 = vec_add(v2,v3);
2465     return 0;
2466 }
2467 EOF
2468
2469         # check if our compiler supports braces for vector declarations
2470         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2471 $inc_altivec_h
2472 int main (void) { (vector int) {1}; return 0; }
2473 EOF
2474     fi
2475
2476 elif enabled sparc; then
2477
2478     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2479         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2480
2481 elif enabled x86; then
2482
2483     enable local_aligned_8 local_aligned_16
2484
2485     # check whether EBP is available on x86
2486     # As 'i' is stored on the stack, this program will crash
2487     # if the base pointer is used to access it because the
2488     # base pointer is cleared in the inline assembly code.
2489     check_exec_crash <<EOF && enable ebp_available
2490     volatile int i=0;
2491     __asm__ volatile (
2492         "xorl %%ebp, %%ebp"
2493     ::: "%ebp");
2494     return i;
2495 EOF
2496
2497     # check whether EBX is available on x86
2498     check_asm ebx_available '""::"b"(0)' &&
2499         check_asm ebx_available '"":::"%ebx"'
2500
2501     # check whether more than 10 operands are supported
2502     check_cc <<EOF && enable ten_operands
2503 int main(void) {
2504     int x=0;
2505     __asm__ volatile(
2506         ""
2507         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2508     );
2509     return 0;
2510 }
2511 EOF
2512
2513     # check whether binutils is new enough to compile SSSE3/MMX2
2514     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2515     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2516
2517     check_asm bswap '"bswap %%eax" ::: "%eax"'
2518
2519     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2520     enabled     x86_64        && append YASMFLAGS "-m amd64"
2521     enabled     pic           && append YASMFLAGS "-DPIC"
2522     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2523     case "$objformat" in
2524         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2525     esac
2526     if ! disabled yasm; then
2527         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2528             warn "yasm not found, performance will suffer"
2529     fi
2530
2531     case "$cpu" in
2532         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2533             disable fast_clz
2534         ;;
2535     esac
2536
2537 fi
2538
2539 if enabled asm; then
2540     as=${gas:=$as}
2541     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2542         $nogas "GNU assembler not found, install gas-preprocessor"
2543 fi
2544
2545 if check_func dlopen; then
2546     ldl=
2547 elif check_func dlopen -ldl; then
2548     ldl=-ldl
2549 fi
2550
2551 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2552 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2553
2554 check_func  fcntl
2555 check_func  fork
2556 check_func  getaddrinfo $network_extralibs
2557 check_func  gethrtime
2558 check_func  getrusage
2559 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2560 check_func  inet_aton $network_extralibs
2561 check_func  isatty
2562 check_func  ${malloc_prefix}memalign            && enable memalign
2563 check_func  mkstemp
2564 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2565 check_func  setrlimit
2566 check_func  strerror_r
2567 check_func_headers io.h setmode
2568 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2569 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2570 check_func_headers windows.h GetProcessTimes
2571 check_func_headers windows.h VirtualAlloc
2572
2573 check_header conio.h
2574 check_header dlfcn.h
2575 check_header dxva2api.h
2576 check_header malloc.h
2577 check_header poll.h
2578 check_header sys/mman.h
2579 check_header sys/resource.h
2580 check_header sys/select.h
2581 check_header termios.h
2582 check_header vdpau/vdpau.h
2583 check_header vdpau/vdpau_x11.h
2584 check_header X11/extensions/XvMClib.h
2585
2586 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2587
2588 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2589      enabled_any $need_memalign ; then
2590     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2591 fi
2592
2593 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2594 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2595
2596 # check for some common methods of building with pthread support
2597 # do this before the optional library checks as some of them require pthreads
2598 if ! disabled pthreads && ! enabled w32threads; then
2599     enable pthreads
2600     if check_func pthread_create; then
2601         :
2602     elif check_func pthread_create -pthread; then
2603         add_cflags -pthread
2604         add_extralibs -pthread
2605     elif check_func pthread_create -pthreads; then
2606         add_cflags -pthreads
2607         add_extralibs -pthreads
2608     elif check_func pthread_create -lpthreadGC2; then
2609         add_extralibs -lpthreadGC2
2610     elif ! check_lib pthread.h pthread_create -lpthread; then
2611         disable pthreads
2612     fi
2613 fi
2614
2615 for thread in $THREADS_LIST; do
2616     if enabled $thread; then
2617         test -n "$thread_type" &&
2618             die "ERROR: Only one thread type must be selected." ||
2619             thread_type="$thread"
2620     fi
2621 done
2622
2623 check_lib math.h sin -lm
2624 disabled vaapi || check_lib va/va.h vaInitialize -lva
2625
2626 check_mathfunc exp2
2627 check_mathfunc exp2f
2628 check_mathfunc llrint
2629 check_mathfunc llrintf
2630 check_mathfunc log2
2631 check_mathfunc log2f
2632 check_mathfunc lrint
2633 check_mathfunc lrintf
2634 check_mathfunc round
2635 check_mathfunc roundf
2636 check_mathfunc truncf
2637
2638 # these are off by default, so fail if requested and not available
2639 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2640 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2641                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2642                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2643 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2644 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2645 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2646 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2647 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2648 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2649 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2650 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2651                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2652 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2653                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2654 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2655 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2656 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2657 enabled libvpx     && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx &&
2658                         check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2659                       die "ERROR: libvpx version must be >=0.9.1"; }
2660 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2661                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2662                         die "ERROR: libx264 version must be >= 0.98."; }
2663 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2664 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2665
2666 # libdc1394 check
2667 if enabled libdc1394; then
2668     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2669         enable libdc1394_2; } ||
2670     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2671         enable libdc1394_1; } ||
2672     die "ERROR: No version of libdc1394 found "
2673 fi
2674
2675 SDL_CONFIG="${cross_prefix}sdl-config"
2676 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2677     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2678     sdl_libs=$("${SDL_CONFIG}" --libs)
2679     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2680     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2681     enable sdl &&
2682     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2683 fi
2684
2685 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2686
2687 if enabled network; then
2688     check_type "sys/types.h sys/socket.h" socklen_t
2689     check_type netdb.h "struct addrinfo"
2690     check_type netinet/in.h "struct ipv6_mreq"
2691     check_type netinet/in.h "struct sockaddr_in6"
2692     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2693     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2694     # Prefer arpa/inet.h over winsock2
2695     if check_header arpa/inet.h ; then
2696         check_func closesocket
2697     elif check_header winsock2.h ; then
2698         check_func_headers winsock2.h closesocket -lws2 && \
2699             network_extralibs="-lws2" || \
2700         { check_func_headers winsock2.h closesocket -lws2_32 && \
2701             network_extralibs="-lws2_32"; }
2702         check_type ws2tcpip.h socklen_t
2703         check_type ws2tcpip.h "struct addrinfo"
2704         check_type ws2tcpip.h "struct ipv6_mreq"
2705         check_type ws2tcpip.h "struct sockaddr_in6"
2706         check_type ws2tcpip.h "struct sockaddr_storage"
2707         check_struct winsock2.h "struct sockaddr" sa_len
2708     else
2709         disable network
2710     fi
2711 fi
2712
2713 check_header linux/videodev.h
2714 check_header linux/videodev2.h
2715 check_header sys/videoio.h
2716
2717 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2718 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2719 # w32api 3.12 had it defined wrong
2720 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2721
2722 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2723 { check_header dev/bktr/ioctl_meteor.h &&
2724   check_header dev/bktr/ioctl_bt848.h; } ||
2725 { check_header machine/ioctl_meteor.h &&
2726   check_header machine/ioctl_bt848.h; } ||
2727 { check_header dev/video/meteor/ioctl_meteor.h &&
2728   check_header dev/video/bktr/ioctl_bt848.h; } ||
2729 check_header dev/ic/bt8xx.h
2730
2731 check_header sys/soundcard.h
2732 check_header soundcard.h
2733
2734 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2735
2736 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2737
2738 enabled x11grab                         &&
2739 check_header X11/Xlib.h                 &&
2740 check_header X11/extensions/XShm.h      &&
2741 check_header X11/extensions/Xfixes.h    &&
2742 check_func XOpenDisplay -lX11           &&
2743 check_func XShmCreateImage -lX11 -lXext &&
2744 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2745
2746 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2747 check_cpp_condition \
2748     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2749     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2750       disable vdpau; }
2751 fi
2752
2753 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2754
2755 # add some useful compiler flags if supported
2756 check_cflags -Wdeclaration-after-statement
2757 check_cflags -Wall
2758 check_cflags -Wno-switch
2759 check_cflags -Wdisabled-optimization
2760 check_cflags -Wpointer-arith
2761 check_cflags -Wredundant-decls
2762 check_cflags -Wno-pointer-sign
2763 check_cflags -Wcast-qual
2764 check_cflags -Wwrite-strings
2765 check_cflags -Wtype-limits
2766 check_cflags -Wundef
2767 check_cflags -Wmissing-prototypes
2768 enabled extra_warnings && check_cflags -Winline
2769
2770 # add some linker flags
2771 check_ldflags -Wl,--warn-common
2772 check_ldflags -Wl,--as-needed
2773 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'
2774 check_ldflags -Wl,-Bsymbolic
2775
2776 echo "X{};" > $TMPV
2777 if test_ldflags -Wl,--version-script,$TMPV; then
2778     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2779     check_cc <<EOF && enable symver_asm_label
2780 void ff_foo(void) __asm__ ("av_foo@VERSION");
2781 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2782 EOF
2783     check_cc <<EOF && enable symver_gnu_asm
2784 __asm__(".symver ff_foo,av_foo@VERSION");
2785 void ff_foo(void) {}
2786 EOF
2787 fi
2788
2789 if enabled small; then
2790     add_cflags $size_cflags
2791     optimizations="small"
2792 elif enabled optimizations; then
2793     add_cflags $speed_cflags
2794 else
2795     add_cflags $noopt_cflags
2796 fi
2797 check_cflags -fno-math-errno
2798 check_cflags -fno-signed-zeros
2799
2800 if enabled icc; then
2801     # Just warnings, no remarks
2802     check_cflags -w1
2803     # -wd: Disable following warnings
2804     # 144, 167, 556: -Wno-pointer-sign
2805     # 10006: ignoring unknown option -fno-signed-zeros
2806     # 10156: ignoring option '-W'; no argument required
2807     check_cflags -wd144,167,556,10006,10156
2808     # 11030: Warning unknown option --as-needed
2809     # 10156: ignoring option '-export'; no argument required
2810     check_ldflags -wd10156,11030
2811     # Allow to compile with optimizations
2812     check_ldflags -march=$cpu
2813     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2814     enable ebp_available
2815 elif enabled ccc; then
2816     # disable some annoying warnings
2817     add_cflags -msg_disable cvtu32to64
2818     add_cflags -msg_disable embedcomment
2819     add_cflags -msg_disable needconstext
2820     add_cflags -msg_disable nomainieee
2821     add_cflags -msg_disable ptrmismatch1
2822     add_cflags -msg_disable unreachcode
2823 elif enabled gcc; then
2824     check_cflags -fno-tree-vectorize
2825     check_cflags -Werror=implicit-function-declaration
2826     check_cflags -Werror=missing-prototypes
2827 elif enabled clang; then
2828     check_cflags -Qunused-arguments
2829 elif enabled armcc; then
2830     # 2523: use of inline assembler is deprecated
2831     add_cflags -Wrvct,--diag_suppress=2523
2832     add_cflags -Wrvct,--diag_suppress=1207
2833 elif enabled tms470; then
2834     add_cflags -pds=824 -pds=837
2835 fi
2836
2837 enabled_any $THREADS_LIST      && enable threads
2838
2839 check_deps $CONFIG_LIST       \
2840            $CONFIG_EXTRA      \
2841            $HAVE_LIST         \
2842            $DECODER_LIST      \
2843            $ENCODER_LIST      \
2844            $HWACCEL_LIST      \
2845            $PARSER_LIST       \
2846            $BSF_LIST          \
2847            $DEMUXER_LIST      \
2848            $MUXER_LIST        \
2849            $FILTER_LIST       \
2850            $INDEV_LIST        \
2851            $OUTDEV_LIST       \
2852            $PROTOCOL_LIST     \
2853            $ACODEC_TESTS      \
2854            $VCODEC_TESTS      \
2855            $LAVF_TESTS        \
2856
2857 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2858
2859 echo "install prefix            $prefix"
2860 echo "source path               $source_path"
2861 echo "C compiler                $cc"
2862 echo "ARCH                      $arch ($cpu)"
2863 if test "$build_suffix" != ""; then
2864     echo "build suffix              $build_suffix"
2865 fi
2866 if test "$extra_version" != ""; then
2867     echo "version string suffix     $extra_version"
2868 fi
2869 echo "big-endian                ${bigendian-no}"
2870 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2871 if enabled x86; then
2872     echo "yasm                      ${yasm-no}"
2873     echo "MMX enabled               ${mmx-no}"
2874     echo "MMX2 enabled              ${mmx2-no}"
2875     echo "3DNow! enabled            ${amd3dnow-no}"
2876     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2877     echo "SSE enabled               ${sse-no}"
2878     echo "SSSE3 enabled             ${ssse3-no}"
2879     echo "CMOV enabled              ${cmov-no}"
2880     echo "CMOV is fast              ${fast_cmov-no}"
2881     echo "EBX available             ${ebx_available-no}"
2882     echo "EBP available             ${ebp_available-no}"
2883     echo "10 operands supported     ${ten_operands-no}"
2884 fi
2885 if enabled arm; then
2886     echo "ARMv5TE enabled           ${armv5te-no}"
2887     echo "ARMv6 enabled             ${armv6-no}"
2888     echo "ARMv6T2 enabled           ${armv6t2-no}"
2889     echo "ARM VFP enabled           ${armvfp-no}"
2890     echo "IWMMXT enabled            ${iwmmxt-no}"
2891     echo "NEON enabled              ${neon-no}"
2892 fi
2893 if enabled mips; then
2894     echo "MMI enabled               ${mmi-no}"
2895 fi
2896 if enabled ppc; then
2897     echo "AltiVec enabled           ${altivec-no}"
2898     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2899     echo "dcbzl available           ${dcbzl-no}"
2900 fi
2901 if enabled sparc; then
2902     echo "VIS enabled               ${vis-no}"
2903 fi
2904 echo "debug symbols             ${debug-no}"
2905 echo "strip symbols             ${stripping-no}"
2906 echo "optimizations             ${optimizations-no}"
2907 echo "static                    ${static-no}"
2908 echo "shared                    ${shared-no}"
2909 echo "postprocessing support    ${postproc-no}"
2910 echo "new filter support        ${avfilter-no}"
2911 echo "filters using lavformat   ${avfilter_lavf-no}"
2912 echo "network support           ${network-no}"
2913 echo "threading support         ${thread_type-no}"
2914 echo "SDL support               ${sdl-no}"
2915 echo "Sun medialib support      ${mlib-no}"
2916 echo "AVISynth enabled          ${avisynth-no}"
2917 echo "libdc1394 support         ${libdc1394-no}"
2918 echo "libdirac enabled          ${libdirac-no}"
2919 echo "libfaac enabled           ${libfaac-no}"
2920 echo "libgsm enabled            ${libgsm-no}"
2921 echo "libmp3lame enabled        ${libmp3lame-no}"
2922 echo "libnut enabled            ${libnut-no}"
2923 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2924 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2925 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2926 echo "librtmp enabled           ${librtmp-no}"
2927 echo "libschroedinger enabled   ${libschroedinger-no}"
2928 echo "libspeex enabled          ${libspeex-no}"
2929 echo "libtheora enabled         ${libtheora-no}"
2930 echo "libvorbis enabled         ${libvorbis-no}"
2931 echo "libvpx enabled            ${libvpx-no}"
2932 echo "libx264 enabled           ${libx264-no}"
2933 echo "libxvid enabled           ${libxvid-no}"
2934 echo "zlib enabled              ${zlib-no}"
2935 echo "bzlib enabled             ${bzlib-no}"
2936 echo
2937
2938 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2939     echo "Enabled ${type}s:"
2940     eval list=\$$(toupper $type)_LIST
2941     print_enabled '_*' $list | sort | pr -3 -t
2942     echo
2943 done
2944
2945 license="LGPL version 2.1 or later"
2946 if enabled nonfree; then
2947     license="nonfree and unredistributable"
2948 elif enabled gplv3; then
2949     license="GPL version 3 or later"
2950 elif enabled lgplv3; then
2951     license="LGPL version 3 or later"
2952 elif enabled gpl; then
2953     license="GPL version 2 or later"
2954 fi
2955
2956 echo "License: $license"
2957
2958 echo "Creating config.mak and config.h..."
2959
2960 # build tree in object directory if source path is different from current one
2961 if enabled source_path_used; then
2962     DIRS="
2963         doc
2964         libavcodec
2965         libavcodec/$arch
2966         libavdevice
2967         libavfilter
2968         libavformat
2969         libavutil
2970         libavutil/$arch
2971         libpostproc
2972         libswscale
2973         libswscale/$arch
2974         tests
2975         tools
2976     "
2977     FILES="
2978         Makefile
2979         common.mak
2980         subdir.mak
2981         doc/texi2pod.pl
2982         libavcodec/Makefile
2983         libavcodec/${arch}/Makefile
2984         libavdevice/Makefile
2985         libavfilter/Makefile
2986         libavformat/Makefile
2987         libavutil/Makefile
2988         libpostproc/Makefile
2989         libswscale/Makefile
2990     "
2991     map 'mkdir -p $v' $DIRS;
2992     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
2993 fi
2994
2995 enabled stripping || strip="echo skipping strip"
2996
2997 cat > config.mak <<EOF
2998 # Automatically generated by configure - do not modify!
2999 ifndef FFMPEG_CONFIG_MAK
3000 FFMPEG_CONFIG_MAK=1
3001 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3002 prefix=$prefix
3003 LIBDIR=\$(DESTDIR)$libdir
3004 SHLIBDIR=\$(DESTDIR)$shlibdir
3005 INCDIR=\$(DESTDIR)$incdir
3006 BINDIR=\$(DESTDIR)$bindir
3007 DATADIR=\$(DESTDIR)$datadir
3008 MANDIR=\$(DESTDIR)$mandir
3009 SRC_PATH="$source_path"
3010 SRC_PATH_BARE=$source_path
3011 BUILD_ROOT="$PWD"
3012 ARCH=$arch
3013 CC=$cc
3014 AS=$as
3015 LD=$ld
3016 DEPCC=$dep_cc
3017 YASM=$yasmexe
3018 YASMDEP=$yasmexe
3019 AR=$ar
3020 RANLIB=$ranlib
3021 CP=cp -p
3022 LN_S=$ln_s
3023 STRIP=$strip
3024 CPPFLAGS=$CPPFLAGS
3025 CFLAGS=$CFLAGS
3026 ASFLAGS=$ASFLAGS
3027 CC_O=$CC_O
3028 LDFLAGS=$LDFLAGS
3029 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3030 SHFLAGS=$SHFLAGS
3031 YASMFLAGS=$YASMFLAGS
3032 BUILDSUF=$build_suffix
3033 FULLNAME=$FULLNAME
3034 LIBPREF=$LIBPREF
3035 LIBSUF=$LIBSUF
3036 LIBNAME=$LIBNAME
3037 SLIBPREF=$SLIBPREF
3038 SLIBSUF=$SLIBSUF
3039 EXESUF=$EXESUF
3040 EXTRA_VERSION=$extra_version
3041 DEPFLAGS=$DEPFLAGS
3042 CCDEP=$CCDEP
3043 ASDEP=$ASDEP
3044 CC_DEPFLAGS=$CC_DEPFLAGS
3045 AS_DEPFLAGS=$AS_DEPFLAGS
3046 HOSTCC=$host_cc
3047 HOSTCFLAGS=$host_cflags
3048 HOSTEXESUF=$HOSTEXESUF
3049 HOSTLDFLAGS=$host_ldflags
3050 HOSTLIBS=$host_libs
3051 TARGET_EXEC=$target_exec
3052 TARGET_PATH=$target_path
3053 SDL_LIBS=$sdl_libs
3054 SDL_CFLAGS=$sdl_cflags
3055 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3056 EXTRALIBS=$extralibs
3057 INSTALL=install
3058 LIBTARGET=${LIBTARGET}
3059 SLIBNAME=${SLIBNAME}
3060 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3061 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3062 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3063 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3064 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3065 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3066 SAMPLES=$samples
3067 EOF
3068
3069 get_version(){
3070     name=$1
3071     file=$source_path/$2
3072     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3073     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3074     lcname=$(tolower $name)
3075     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3076     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3077 }
3078
3079 get_version LIBSWSCALE  libswscale/swscale.h
3080 get_version LIBPOSTPROC libpostproc/postprocess.h
3081 get_version LIBAVCODEC  libavcodec/avcodec.h
3082 get_version LIBAVDEVICE libavdevice/avdevice.h
3083 get_version LIBAVFORMAT libavformat/avformat.h
3084 get_version LIBAVUTIL   libavutil/avutil.h
3085 get_version LIBAVFILTER libavfilter/avfilter.h
3086
3087 cat > $TMPH <<EOF
3088 /* Automatically generated by configure - do not modify! */
3089 #ifndef FFMPEG_CONFIG_H
3090 #define FFMPEG_CONFIG_H
3091 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3092 #define FFMPEG_LICENSE "$(c_escape $license)"
3093 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3094 #define CC_TYPE "$cc_type"
3095 #define CC_VERSION $cc_version
3096 #define restrict $_restrict
3097 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3098 #define EXTERN_PREFIX "${extern_prefix}"
3099 #define EXTERN_ASM ${extern_prefix}
3100 EOF
3101
3102 test -n "$malloc_prefix" &&
3103     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3104
3105 if enabled small || disabled optimizations; then
3106     echo "#undef  av_always_inline"  >> $TMPH
3107     echo "#define av_always_inline"  >> $TMPH
3108 fi
3109
3110 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3111 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3112 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3113                                       $CONFIG_EXTRA      \
3114                                       $DECODER_LIST      \
3115                                       $ENCODER_LIST      \
3116                                       $HWACCEL_LIST      \
3117                                       $PARSER_LIST       \
3118                                       $BSF_LIST          \
3119                                       $DEMUXER_LIST      \
3120                                       $MUXER_LIST        \
3121                                       $FILTER_LIST       \
3122                                       $PROTOCOL_LIST     \
3123                                       $INDEV_LIST        \
3124                                       $OUTDEV_LIST       \
3125
3126 cat >>config.mak <<EOF
3127 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3128 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3129 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3130 EOF
3131
3132 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3133 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3134
3135 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3136 cp_if_changed $TMPH config.h
3137
3138 cat > $TMPH <<EOF
3139 /* Generated by ffconf */
3140 #ifndef AVUTIL_AVCONFIG_H
3141 #define AVUTIL_AVCONFIG_H
3142 EOF
3143
3144 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3145
3146 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3147
3148 cp_if_changed $TMPH libavutil/avconfig.h
3149
3150 test -n "$WARNINGS" && printf "\n$WARNINGS"
3151
3152 # build pkg-config files
3153
3154 pkgconfig_generate(){
3155 name=$1
3156 shortname=${name#lib}${build_suffix}
3157 comment=$2
3158 version=$3
3159 libs=$4
3160 requires=$5
3161 cat <<EOF > $name/$name.pc
3162 prefix=$prefix
3163 exec_prefix=\${prefix}
3164 libdir=$libdir
3165 includedir=$incdir
3166
3167 Name: $name
3168 Description: $comment
3169 Version: $version
3170 Requires: $(enabled shared || echo $requires)
3171 Requires.private: $(enabled shared && echo $requires)
3172 Conflicts:
3173 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3174 Libs.private: $(enabled shared && echo $libs)
3175 Cflags: -I\${includedir}
3176 EOF
3177 cat <<EOF > $name/$name-uninstalled.pc
3178 prefix=
3179 exec_prefix=
3180 libdir=\${pcfiledir}
3181 includedir=${source_path}
3182
3183 Name: $name
3184 Description: $comment
3185 Version: $version
3186 Requires: $requires
3187 Conflicts:
3188 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3189 Cflags: -I\${includedir}
3190 EOF
3191 }
3192
3193 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3194 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3195 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3196 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3197 enabled avfilter &&
3198     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3199 enabled postproc &&
3200     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3201 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"