3167d5d3da84c387e19ed9448f7fc2193f4afa45
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avcore         disable libavcore build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --enable-postproc        enable GPLed postprocessing support [no]
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --enable-w32threads      use Win32 threads [no]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101   --disable-fastdiv        disable table-based division
102   --enable-small           optimize for size instead of speed
103   --disable-aandct         disable AAN DCT code
104   --disable-dct            disable DCT code
105   --disable-fft            disable FFT code
106   --disable-golomb         disable Golomb code
107   --disable-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-libxavs         enable AVS encoding via xavs [no]
184   --enable-libxvid         enable Xvid encoding via xvidcore,
185                            native MPEG-4/Xvid encoder exists [no]
186   --enable-mlib            enable Sun medialib [no]
187   --enable-zlib            enable zlib [autodetect]
188
189 Advanced options (experts only):
190   --source-path=PATH       path to source code [$source_path]
191   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
192   --enable-cross-compile   assume a cross-compiler is used
193   --sysroot=PATH           root of cross-build tree
194   --sysinclude=PATH        location of cross-build system headers
195   --target-os=OS           compiler targets OS [$target_os]
196   --target-exec=CMD        command to run executables on target
197   --target-path=DIR        path to view of build directory on target
198   --nm=NM                  use nm tool
199   --ar=AR                  use archive tool AR [$ar_default]
200   --as=AS                  use assembler AS [$as_default]
201   --cc=CC                  use C compiler CC [$cc_default]
202   --ld=LD                  use linker LD
203   --host-cc=HOSTCC         use host C compiler HOSTCC
204   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
205   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
206   --host-libs=HLIBS        use libs HLIBS when linking for host
207   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
208   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
209   --extra-libs=ELIBS       add ELIBS [$ELIBS]
210   --extra-version=STRING   version string suffix []
211   --build-suffix=SUFFIX    library name suffix []
212   --arch=ARCH              select architecture [$arch]
213   --cpu=CPU                select the minimum required CPU (affects
214                            instruction selection, may crash on older CPUs)
215   --disable-asm            disable all assembler optimizations
216   --disable-altivec        disable AltiVec optimizations
217   --disable-amd3dnow       disable 3DNow! optimizations
218   --disable-amd3dnowext    disable 3DNow! extended optimizations
219   --disable-mmx            disable MMX optimizations
220   --disable-mmx2           disable MMX2 optimizations
221   --disable-sse            disable SSE optimizations
222   --disable-ssse3          disable SSSE3 optimizations
223   --disable-armv5te        disable armv5te optimizations
224   --disable-armv6          disable armv6 optimizations
225   --disable-armv6t2        disable armv6t2 optimizations
226   --disable-armvfp         disable ARM VFP optimizations
227   --disable-iwmmxt         disable iwmmxt optimizations
228   --disable-mmi            disable MMI optimizations
229   --disable-neon           disable neon optimizations
230   --disable-vis            disable VIS optimizations
231   --disable-yasm           disable use of yasm assembler
232   --enable-pic             build position-independent code
233   --malloc-prefix=PFX      prefix malloc and related names with PFX
234   --enable-sram            allow use of on-chip SRAM
235
236 Developer options (useful when working on FFmpeg itself):
237   --disable-debug          disable debugging symbols
238   --enable-debug=LEVEL     set the debug level [$debuglevel]
239   --disable-optimizations  disable compiler optimizations
240   --enable-extra-warnings  enable more compiler warnings
241   --disable-stripping      disable stripping of executables and shared libraries
242   --samples=PATH           location of test samples for FATE
243
244 NOTE: Object files are built at the place where configure is launched.
245 EOF
246   exit 0
247 }
248
249 quotes='""'
250
251 log(){
252     echo "$@" >> $logfile
253 }
254
255 log_file(){
256     log BEGIN $1
257     pr -n -t $1 >> $logfile
258     log END $1
259 }
260
261 echolog(){
262     log "$@"
263     echo "$@"
264 }
265
266 warn(){
267     log "WARNING: $*"
268     WARNINGS="${WARNINGS}WARNING: $*\n"
269 }
270
271 die(){
272     echolog "$@"
273     cat <<EOF
274
275 If you think configure made a mistake, make sure you are using the latest
276 version from SVN.  If the latest version fails, report the problem to the
277 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
278 EOF
279     if disabled logging; then
280         cat <<EOF
281 Rerun configure with logging enabled (do not use --disable-logging), and
282 include the log this produces with your report.
283 EOF
284     else
285 cat <<EOF
286 Include the log file "$logfile" produced by configure as this will help
287 solving the problem.
288 EOF
289     fi
290     exit 1
291 }
292
293 # Avoid locale weirdness, besides we really just want to translate ASCII.
294 toupper(){
295     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
296 }
297
298 tolower(){
299     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
300 }
301
302 c_escape(){
303     echo "$*" | sed 's/["\\]/\\\0/g'
304 }
305
306 sh_quote(){
307     v=$(echo "$1" | sed "s/'/'\\\\''/g")
308     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
309     echo "$v"
310 }
311
312 filter(){
313     pat=$1
314     shift
315     for v; do
316         eval "case $v in $pat) echo $v ;; esac"
317     done
318 }
319
320 map(){
321     m=$1
322     shift
323     for v; do eval $m; done
324 }
325
326 set_all(){
327     value=$1
328     shift
329     for var in $*; do
330         eval $var=$value
331     done
332 }
333
334 set_weak(){
335     value=$1
336     shift
337     for var; do
338         eval : \${$var:=$value}
339     done
340 }
341
342 pushvar(){
343     for var in $*; do
344         eval level=\${${var}_level:=0}
345         eval ${var}_${level}="\$$var"
346         eval ${var}_level=$(($level+1))
347     done
348 }
349
350 popvar(){
351     for var in $*; do
352         eval level=\${${var}_level:-0}
353         test $level = 0 && continue
354         eval level=$(($level-1))
355         eval $var="\${${var}_${level}}"
356         eval ${var}_level=$level
357         eval unset ${var}_${level}
358     done
359 }
360
361 enable(){
362     set_all yes $*
363 }
364
365 disable(){
366     set_all no $*
367 }
368
369 enable_weak(){
370     set_weak yes $*
371 }
372
373 disable_weak(){
374     set_weak no $*
375 }
376
377 enable_safe(){
378     for var; do
379         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
380     done
381 }
382
383 disable_safe(){
384     for var; do
385         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
386     done
387 }
388
389 do_enable_deep(){
390     for var; do
391         enabled $var && continue
392         eval sel="\$${var}_select"
393         eval sgs="\$${var}_suggest"
394         pushvar var sgs
395         enable_deep $sel
396         popvar sgs
397         enable_deep_weak $sgs
398         popvar var
399     done
400 }
401
402 enable_deep(){
403     do_enable_deep $*
404     enable $*
405 }
406
407 enable_deep_weak(){
408     do_enable_deep $*
409     enable_weak $*
410 }
411
412 enabled(){
413     test "${1#!}" = "$1" && op== || op=!=
414     eval test "x\$${1#!}" $op "xyes"
415 }
416
417 disabled(){
418     test "${1#!}" = "$1" && op== || op=!=
419     eval test "x\$${1#!}" $op "xno"
420 }
421
422 enabled_all(){
423     for opt; do
424         enabled $opt || return 1
425     done
426 }
427
428 disabled_all(){
429     for opt; do
430         disabled $opt || return 1
431     done
432 }
433
434 enabled_any(){
435     for opt; do
436         enabled $opt && return 0
437     done
438 }
439
440 disabled_any(){
441     for opt; do
442         disabled $opt && return 0
443     done
444     return 1
445 }
446
447 set_default(){
448     for opt; do
449         eval : \${$opt:=\$${opt}_default}
450     done
451 }
452
453 is_in(){
454     value=$1
455     shift
456     for var in $*; do
457         [ $var = $value ] && return 0
458     done
459     return 1
460 }
461
462 check_deps(){
463     for cfg; do
464         cfg="${cfg#!}"
465         enabled ${cfg}_checking && die "Circular dependency for $cfg."
466         disabled ${cfg}_checking && continue
467         enable ${cfg}_checking
468
469         eval dep_all="\$${cfg}_deps"
470         eval dep_any="\$${cfg}_deps_any"
471         eval dep_sel="\$${cfg}_select"
472         eval dep_sgs="\$${cfg}_suggest"
473         eval dep_ifa="\$${cfg}_if"
474         eval dep_ifn="\$${cfg}_if_any"
475
476         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
477         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
478         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
479
480         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
481         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
482         enabled_all  $dep_all || disable $cfg
483         enabled_any  $dep_any || disable $cfg
484         disabled_any $dep_sel && disable $cfg
485
486         if enabled $cfg; then
487             eval dep_extralibs="\$${cfg}_extralibs"
488             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
489             enable_deep $dep_sel
490             enable_deep_weak $dep_sgs
491         fi
492
493         disable ${cfg}_checking
494     done
495 }
496
497 print_config(){
498     pfx=$1
499     header=$2
500     makefile=$3
501     shift 3
502     for cfg; do
503         ucname="$(toupper $cfg)"
504         if enabled $cfg; then
505             echo "#define ${pfx}${ucname} 1" >> $header
506             echo "${pfx}${ucname}=yes" >> $makefile
507         else
508             echo "#define ${pfx}${ucname} 0" >> $header
509             echo "!${pfx}${ucname}=yes" >> $makefile
510         fi
511     done
512 }
513
514 print_enabled(){
515     test "$1" = -n && end=" " && shift || end="\n"
516     suf=$1
517     shift
518     for v; do
519         enabled $v && printf "%s$end" ${v%$suf};
520     done
521 }
522
523 append(){
524     var=$1
525     shift
526     eval "$var=\"\$$var $*\""
527 }
528
529 prepend(){
530     var=$1
531     shift
532     eval "$var=\"$* \$$var\""
533 }
534
535 add_cppflags(){
536     append CPPFLAGS $($filter_cppflags "$@")
537 }
538
539 add_cflags(){
540     append CFLAGS $($filter_cflags "$@")
541 }
542
543 add_asflags(){
544     append ASFLAGS $($filter_asflags "$@")
545 }
546
547 add_ldflags(){
548     append LDFLAGS "$@"
549 }
550
551 add_extralibs(){
552     prepend extralibs "$@"
553 }
554
555 check_cmd(){
556     log "$@"
557     "$@" >> $logfile 2>&1
558 }
559
560 check_cc(){
561     log check_cc "$@"
562     cat > $TMPC
563     log_file $TMPC
564     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
565 }
566
567 check_cpp(){
568     log check_cpp "$@"
569     cat > $TMPC
570     log_file $TMPC
571     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
572 }
573
574 check_as(){
575     log check_as "$@"
576     cat > $TMPC
577     log_file $TMPC
578     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
579 }
580
581 check_asm(){
582     log check_asm "$@"
583     name="$1"
584     code="$2"
585     shift 2
586     disable $name
587     check_as "$@" <<EOF && enable $name
588 void foo(void){ __asm__ volatile($code); }
589 EOF
590 }
591
592 check_yasm(){
593     log check_yasm "$@"
594     echo "$1" > $TMPS
595     log_file $TMPS
596     shift 1
597     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
598 }
599
600 check_ld(){
601     log check_ld "$@"
602     flags=''
603     libs=''
604     for f; do
605         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
606     done
607     check_cc $($filter_cflags $flags) || return
608     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
609 }
610
611 check_cppflags(){
612     log check_cppflags "$@"
613     set -- $($filter_cppflags "$@")
614     check_cc "$@" <<EOF && append CPPFLAGS "$@"
615 int x;
616 EOF
617 }
618
619 check_cflags(){
620     log check_cflags "$@"
621     set -- $($filter_cflags "$@")
622     check_cc "$@" <<EOF && append CFLAGS "$@"
623 int x;
624 EOF
625 }
626
627 test_ldflags(){
628     log test_ldflags "$@"
629     check_ld "$@" <<EOF
630 int main(void){ return 0; }
631 EOF
632 }
633
634 check_ldflags(){
635     log check_ldflags "$@"
636     test_ldflags "$@" && add_ldflags "$@"
637 }
638
639 check_header(){
640     log check_header "$@"
641     header=$1
642     shift
643     disable_safe $header
644     check_cpp "$@" <<EOF && enable_safe $header
645 #include <$header>
646 int x;
647 EOF
648 }
649
650 check_func(){
651     log check_func "$@"
652     func=$1
653     shift
654     disable $func
655     check_ld "$@" <<EOF && enable $func
656 extern int $func();
657 int main(void){ $func(); }
658 EOF
659 }
660
661 check_mathfunc(){
662     log check_mathfunc "$@"
663     func=$1
664     shift
665     disable $func
666     check_ld "$@" <<EOF && enable $func
667 #include <math.h>
668 float foo(float f) { return $func(f); }
669 int main(void){ return 0; }
670 EOF
671 }
672
673 check_func_headers(){
674     log check_func_headers "$@"
675     headers=$1
676     func=$2
677     shift 2
678     disable $func
679     incs=""
680     for hdr in $headers; do
681         incs="$incs
682 #include <$hdr>"
683     done
684     check_ld "$@" <<EOF && enable $func && enable_safe $headers
685 $incs
686 int main(int argc, char **argv){
687     return (long) $func;
688 }
689 EOF
690 }
691
692 check_cpp_condition(){
693     log check_cpp_condition "$@"
694     header=$1
695     condition=$2
696     shift 2
697     check_cpp $($filter_cppflags "$@") <<EOF
698 #include <$header>
699 #if !($condition)
700 #error "unsatisfied condition: $condition"
701 #endif
702 EOF
703 }
704
705 check_lib(){
706     log check_lib "$@"
707     header="$1"
708     func="$2"
709     shift 2
710     check_header $header && check_func $func "$@" && add_extralibs "$@"
711 }
712
713 check_lib2(){
714     log check_lib2 "$@"
715     headers="$1"
716     func="$2"
717     shift 2
718     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
719 }
720
721 check_exec(){
722     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
723 }
724
725 check_exec_crash(){
726     code=$(cat)
727
728     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
729     # are safe but may not be available everywhere.  Thus we use
730     # raise(SIGTERM) instead.  The check is run in a subshell so we
731     # can redirect the "Terminated" message from the shell.  SIGBUS
732     # is not defined by standard C so it is used conditionally.
733
734     (check_exec "$@") >> $logfile 2>&1 <<EOF
735 #include <signal.h>
736 static void sighandler(int sig){
737     raise(SIGTERM);
738 }
739 int main(void){
740     signal(SIGILL, sighandler);
741     signal(SIGFPE, sighandler);
742     signal(SIGSEGV, sighandler);
743 #ifdef SIGBUS
744     signal(SIGBUS, sighandler);
745 #endif
746     { $code }
747 }
748 EOF
749 }
750
751 check_type(){
752     log check_type "$@"
753     headers=$1
754     type=$2
755     shift 2
756     disable_safe "$type"
757     incs=""
758     for hdr in $headers; do
759         incs="$incs
760 #include <$hdr>"
761     done
762     check_cc "$@" <<EOF && enable_safe "$type"
763 $incs
764 $type v;
765 EOF
766 }
767
768 check_struct(){
769     log check_type "$@"
770     headers=$1
771     struct=$2
772     member=$3
773     shift 3
774     disable_safe "${struct}_${member}"
775     incs=""
776     for hdr in $headers; do
777         incs="$incs
778 #include <$hdr>"
779     done
780     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
781 $incs
782 const void *p = &(($struct *)0)->$member;
783 EOF
784 }
785
786 require(){
787     name="$1"
788     header="$2"
789     func="$3"
790     shift 3
791     check_lib $header $func "$@" || die "ERROR: $name not found"
792 }
793
794 require2(){
795     name="$1"
796     headers="$2"
797     func="$3"
798     shift 3
799     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
800 }
801
802 check_host_cc(){
803     log check_host_cc "$@"
804     cat > $TMPC
805     log_file $TMPC
806     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
807 }
808
809 check_host_cflags(){
810     log check_host_cflags "$@"
811     check_host_cc "$@" <<EOF && append host_cflags "$@"
812 int x;
813 EOF
814 }
815
816 apply(){
817     file=$1
818     shift
819     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
820 }
821
822 cp_if_changed(){
823     cmp -s "$1" "$2" &&
824         echo "$2 is unchanged" ||
825         cp -f "$1" "$2"
826 }
827
828 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
829 # system-dependent things.
830
831 COMPONENT_LIST="
832     bsfs
833     decoders
834     demuxers
835     encoders
836     filters
837     hwaccels
838     indevs
839     muxers
840     outdevs
841     parsers
842     protocols
843 "
844
845 CONFIG_LIST="
846     $COMPONENT_LIST
847     aandct
848     avcodec
849     avcore
850     avdevice
851     avfilter
852     avformat
853     avisynth
854     bzlib
855     dct
856     doc
857     dwt
858     dxva2
859     fastdiv
860     ffmpeg
861     ffplay
862     ffprobe
863     ffserver
864     fft
865     golomb
866     gpl
867     gray
868     h264dsp
869     hardcoded_tables
870     libdc1394
871     libdirac
872     libfaac
873     libgsm
874     libmp3lame
875     libnut
876     libopencore_amrnb
877     libopencore_amrwb
878     libopenjpeg
879     librtmp
880     libschroedinger
881     libspeex
882     libtheora
883     libvorbis
884     libvpx
885     libx264
886     libxavs
887     libxvid
888     lpc
889     lsp
890     mdct
891     memalign_hack
892     mlib
893     mpegaudio_hp
894     network
895     nonfree
896     pic
897     postproc
898     rdft
899     runtime_cpudetect
900     shared
901     small
902     sram
903     static
904     swscale
905     swscale_alpha
906     vaapi
907     vdpau
908     version3
909     x11grab
910     zlib
911 "
912
913 THREADS_LIST='
914     pthreads
915     w32threads
916 '
917
918 ARCH_LIST='
919     alpha
920     arm
921     avr32
922     avr32_ap
923     avr32_uc
924     bfin
925     ia64
926     m68k
927     mips
928     mips64
929     parisc
930     ppc
931     ppc64
932     s390
933     sh4
934     sparc
935     sparc64
936     tomi
937     x86
938     x86_32
939     x86_64
940 '
941
942 ARCH_EXT_LIST='
943     altivec
944     amd3dnow
945     amd3dnowext
946     armv5te
947     armv6
948     armv6t2
949     armvfp
950     iwmmxt
951     mmi
952     mmx
953     mmx2
954     neon
955     ppc4xx
956     sse
957     ssse3
958     vis
959 '
960
961 HAVE_LIST_PUB='
962     bigendian
963     fast_unaligned
964 '
965
966 HAVE_LIST="
967     $ARCH_EXT_LIST
968     $HAVE_LIST_PUB
969     $THREADS_LIST
970     alsa_asoundlib_h
971     altivec_h
972     arpa_inet_h
973     attribute_may_alias
974     attribute_packed
975     bswap
976     closesocket
977     cmov
978     conio_h
979     dcbzl
980     dev_bktr_ioctl_bt848_h
981     dev_bktr_ioctl_meteor_h
982     dev_ic_bt8xx_h
983     dev_video_meteor_ioctl_meteor_h
984     dev_video_bktr_ioctl_bt848_h
985     dlfcn_h
986     dlopen
987     dos_paths
988     ebp_available
989     ebx_available
990     exp2
991     exp2f
992     fast_64bit
993     fast_clz
994     fast_cmov
995     fcntl
996     fork
997     getaddrinfo
998     gethrtime
999     GetProcessMemoryInfo
1000     GetProcessTimes
1001     getrusage
1002     gnu_as
1003     struct_rusage_ru_maxrss
1004     ibm_asm
1005     inet_aton
1006     inline_asm
1007     isatty
1008     ldbrx
1009     libdc1394_1
1010     libdc1394_2
1011     llrint
1012     llrintf
1013     local_aligned_16
1014     local_aligned_8
1015     log2
1016     log2f
1017     loongson
1018     lrint
1019     lrintf
1020     lzo1x_999_compress
1021     machine_ioctl_bt848_h
1022     machine_ioctl_meteor_h
1023     malloc_h
1024     memalign
1025     mkstemp
1026     pld
1027     posix_memalign
1028     round
1029     roundf
1030     sdl
1031     sdl_video_size
1032     setmode
1033     socklen_t
1034     soundcard_h
1035     poll_h
1036     setrlimit
1037     strerror_r
1038     struct_addrinfo
1039     struct_ipv6_mreq
1040     struct_sockaddr_in6
1041     struct_sockaddr_sa_len
1042     struct_sockaddr_storage
1043     symver
1044     symver_gnu_asm
1045     symver_asm_label
1046     sys_mman_h
1047     sys_resource_h
1048     sys_select_h
1049     sys_soundcard_h
1050     sys_videoio_h
1051     ten_operands
1052     termios_h
1053     threads
1054     truncf
1055     vfp_args
1056     VirtualAlloc
1057     winsock2_h
1058     xform_asm
1059     yasm
1060 "
1061
1062 # options emitted with CONFIG_ prefix but not available on command line
1063 CONFIG_EXTRA="
1064     avutil
1065     gplv3
1066     lgplv3
1067 "
1068
1069 CMDLINE_SELECT="
1070     $ARCH_EXT_LIST
1071     $CONFIG_LIST
1072     $THREADS_LIST
1073     asm
1074     cross_compile
1075     debug
1076     extra_warnings
1077     logging
1078     optimizations
1079     stripping
1080     yasm
1081 "
1082
1083 PATHS_LIST='
1084     bindir
1085     datadir
1086     incdir
1087     libdir
1088     mandir
1089     prefix
1090     shlibdir
1091 '
1092
1093 CMDLINE_SET="
1094     $PATHS_LIST
1095     ar
1096     arch
1097     as
1098     build_suffix
1099     cc
1100     cpu
1101     cross_prefix
1102     dep_cc
1103     extra_version
1104     host_cc
1105     host_cflags
1106     host_ldflags
1107     host_libs
1108     host_os
1109     ld
1110     logfile
1111     malloc_prefix
1112     nm
1113     samples
1114     source_path
1115     strip
1116     sysinclude
1117     sysroot
1118     target_exec
1119     target_os
1120     target_path
1121 "
1122
1123 CMDLINE_APPEND="
1124     extra_cflags
1125 "
1126
1127 # code dependency declarations
1128
1129 # architecture extensions
1130
1131 armv5te_deps="arm"
1132 armv6_deps="arm"
1133 armv6t2_deps="arm"
1134 armvfp_deps="arm"
1135 iwmmxt_deps="arm"
1136 neon_deps="arm"
1137
1138 mmi_deps="mips"
1139
1140 altivec_deps="ppc"
1141 ppc4xx_deps="ppc"
1142
1143 vis_deps="sparc"
1144
1145 x86_64_suggest="cmov fast_cmov"
1146 amd3dnow_deps="mmx"
1147 amd3dnowext_deps="amd3dnow"
1148 mmx_deps="x86"
1149 mmx2_deps="mmx"
1150 sse_deps="mmx"
1151 ssse3_deps="sse"
1152
1153 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1154 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1155 fast_unaligned_if_any="armv6 ppc x86"
1156
1157 need_memalign="altivec neon sse"
1158 inline_asm_deps="!tms470"
1159
1160 symver_if_any="symver_asm_label symver_gnu_asm"
1161
1162 # subsystems
1163 dct_select="rdft"
1164 mdct_select="fft"
1165 rdft_select="fft"
1166
1167 # decoders / encoders / hardware accelerators
1168 aac_decoder_select="mdct rdft"
1169 aac_encoder_select="mdct"
1170 ac3_decoder_select="mdct ac3_parser"
1171 alac_encoder_select="lpc"
1172 amrnb_decoder_select="lsp"
1173 atrac1_decoder_select="mdct"
1174 atrac3_decoder_select="mdct"
1175 binkaudio_dct_decoder_select="mdct rdft dct"
1176 binkaudio_rdft_decoder_select="mdct rdft"
1177 cavs_decoder_select="golomb"
1178 cook_decoder_select="mdct"
1179 cscd_decoder_suggest="zlib"
1180 dca_decoder_select="mdct"
1181 dnxhd_encoder_select="aandct"
1182 dxa_decoder_select="zlib"
1183 eac3_decoder_select="ac3_decoder"
1184 eamad_decoder_select="aandct"
1185 eatgq_decoder_select="aandct"
1186 eatqi_decoder_select="aandct"
1187 ffv1_decoder_select="golomb"
1188 flac_decoder_select="golomb"
1189 flac_encoder_select="golomb lpc"
1190 flashsv_decoder_select="zlib"
1191 flashsv_encoder_select="zlib"
1192 flv_decoder_select="h263_decoder"
1193 flv_encoder_select="h263_encoder"
1194 h261_encoder_select="aandct"
1195 h263_decoder_select="h263_parser"
1196 h263_encoder_select="aandct"
1197 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1198 h263i_decoder_select="h263_decoder"
1199 h263p_encoder_select="h263_encoder"
1200 h264_decoder_select="golomb h264dsp"
1201 h264_dxva2_hwaccel_deps="dxva2api_h"
1202 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1203 h264_vaapi_hwaccel_select="vaapi"
1204 h264_vdpau_decoder_select="vdpau h264_decoder"
1205 imc_decoder_select="fft mdct"
1206 jpegls_decoder_select="golomb"
1207 jpegls_encoder_select="golomb"
1208 ljpeg_encoder_select="aandct"
1209 loco_decoder_select="golomb"
1210 mjpeg_encoder_select="aandct"
1211 mlp_decoder_select="mlp_parser"
1212 mp1float_decoder_select="dct"
1213 mp2float_decoder_select="dct"
1214 mp3adufloat_decoder_select="dct"
1215 mp3float_decoder_select="dct"
1216 mp3on4float_decoder_select="dct"
1217 mpeg1video_encoder_select="aandct"
1218 mpeg2video_encoder_select="aandct"
1219 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1220 mpeg4_encoder_select="h263_encoder"
1221 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1222 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1223 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1224 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1225 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1226 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1227 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1228 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1229 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1230 msmpeg4v1_decoder_select="h263_decoder"
1231 msmpeg4v1_encoder_select="h263_encoder"
1232 msmpeg4v2_decoder_select="h263_decoder"
1233 msmpeg4v2_encoder_select="h263_encoder"
1234 msmpeg4v3_decoder_select="h263_decoder"
1235 msmpeg4v3_encoder_select="h263_encoder"
1236 nellymoser_decoder_select="mdct"
1237 nellymoser_encoder_select="mdct"
1238 png_decoder_select="zlib"
1239 png_encoder_select="zlib"
1240 qcelp_decoder_select="lsp"
1241 qdm2_decoder_select="mdct rdft"
1242 ra_144_encoder_select="lpc"
1243 rv10_decoder_select="h263_decoder"
1244 rv10_encoder_select="h263_encoder"
1245 rv20_decoder_select="h263_decoder"
1246 rv20_encoder_select="h263_encoder"
1247 rv30_decoder_select="golomb h264dsp"
1248 rv40_decoder_select="golomb h264dsp"
1249 shorten_decoder_select="golomb"
1250 sipr_decoder_select="lsp"
1251 snow_decoder_select="dwt"
1252 snow_encoder_select="aandct dwt"
1253 sonic_decoder_select="golomb"
1254 sonic_encoder_select="golomb"
1255 sonic_ls_encoder_select="golomb"
1256 svq1_encoder_select="aandct"
1257 svq3_decoder_select="golomb h264dsp"
1258 svq3_decoder_suggest="zlib"
1259 theora_decoder_select="vp3_decoder"
1260 tiff_decoder_suggest="zlib"
1261 tiff_encoder_suggest="zlib"
1262 truehd_decoder_select="mlp_decoder"
1263 tscc_decoder_select="zlib"
1264 twinvq_decoder_select="mdct lsp"
1265 vc1_decoder_select="h263_decoder"
1266 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1267 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1268 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1269 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1270 vorbis_decoder_select="mdct"
1271 vorbis_encoder_select="mdct"
1272 vp6a_decoder_select="vp6_decoder"
1273 vp6f_decoder_select="vp6_decoder"
1274 vp8_decoder_select="h264dsp"
1275 wmapro_decoder_select="mdct"
1276 wmav1_decoder_select="mdct"
1277 wmav1_encoder_select="mdct"
1278 wmav2_decoder_select="mdct"
1279 wmav2_encoder_select="mdct"
1280 wmavoice_decoder_select="lsp rdft dct mdct"
1281 wmv1_decoder_select="h263_decoder"
1282 wmv1_encoder_select="h263_encoder"
1283 wmv2_decoder_select="h263_decoder"
1284 wmv2_encoder_select="h263_encoder"
1285 wmv3_decoder_select="vc1_decoder"
1286 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1287 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1288 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1289 zlib_decoder_select="zlib"
1290 zlib_encoder_select="zlib"
1291 zmbv_decoder_select="zlib"
1292 zmbv_encoder_select="zlib"
1293
1294 vaapi_deps="va_va_h"
1295 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1296
1297 # parsers
1298 h264_parser_select="golomb h264dsp"
1299
1300 # external libraries
1301 libdirac_decoder_deps="libdirac !libschroedinger"
1302 libdirac_encoder_deps="libdirac"
1303 libfaac_encoder_deps="libfaac"
1304 libgsm_decoder_deps="libgsm"
1305 libgsm_encoder_deps="libgsm"
1306 libgsm_ms_decoder_deps="libgsm"
1307 libgsm_ms_encoder_deps="libgsm"
1308 libmp3lame_encoder_deps="libmp3lame"
1309 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1310 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1311 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1312 libopenjpeg_decoder_deps="libopenjpeg"
1313 libschroedinger_decoder_deps="libschroedinger"
1314 libschroedinger_encoder_deps="libschroedinger"
1315 libspeex_decoder_deps="libspeex"
1316 libtheora_encoder_deps="libtheora"
1317 libvorbis_encoder_deps="libvorbis"
1318 libvpx_decoder_deps="libvpx"
1319 libvpx_encoder_deps="libvpx"
1320 libx264_encoder_deps="libx264"
1321 libxavs_encoder_deps="libxavs"
1322 libxvid_encoder_deps="libxvid"
1323
1324 # demuxers / muxers
1325 ac3_demuxer_deps="ac3_parser"
1326 asf_stream_muxer_select="asf_muxer"
1327 avisynth_demuxer_deps="avisynth"
1328 dirac_demuxer_deps="dirac_parser"
1329 eac3_demuxer_select="ac3_parser"
1330 ipod_muxer_select="mov_muxer"
1331 libnut_demuxer_deps="libnut"
1332 libnut_muxer_deps="libnut"
1333 matroska_audio_muxer_select="matroska_muxer"
1334 matroska_demuxer_suggest="zlib bzlib"
1335 mov_demuxer_suggest="zlib"
1336 mp3_demuxer_deps="mpegaudio_parser"
1337 mp4_muxer_select="mov_muxer"
1338 mpegtsraw_demuxer_select="mpegts_demuxer"
1339 mxf_d10_muxer_select="mxf_muxer"
1340 ogg_demuxer_select="golomb"
1341 psp_muxer_select="mov_muxer"
1342 rtsp_demuxer_deps="sdp_demuxer"
1343 rtsp_muxer_deps="sdp_demuxer"
1344 rtsp_muxer_select="rtp_muxer"
1345 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1346 sdp_demuxer_select="asf_demuxer rm_demuxer"
1347 spdif_muxer_select="aac_parser"
1348 tg2_muxer_select="mov_muxer"
1349 tgp_muxer_select="mov_muxer"
1350 w64_demuxer_deps="wav_demuxer"
1351
1352 # indevs / outdevs
1353 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1354 alsa_indev_extralibs="-lasound"
1355 alsa_outdev_deps="alsa_asoundlib_h"
1356 alsa_outdev_extralibs="-lasound"
1357 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1358 dv1394_indev_deps="dv1394 dv_demuxer"
1359 jack_indev_deps="jack_jack_h"
1360 jack_indev_extralibs="-ljack"
1361 libdc1394_indev_deps="libdc1394"
1362 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1363 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1364 v4l_indev_deps="linux_videodev_h"
1365 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1366 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1367 vfwcap_indev_extralibs="-lavicap32"
1368 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1369 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1370
1371 # protocols
1372 gopher_protocol_deps="network"
1373 http_protocol_deps="network"
1374 http_protocol_select="tcp_protocol"
1375 mmst_protocol_deps="network"
1376 rtmp_protocol_select="tcp_protocol"
1377 rtp_protocol_select="udp_protocol"
1378 tcp_protocol_deps="network"
1379 udp_protocol_deps="network"
1380
1381 # libraries
1382 avdevice_deps="avcodec avformat"
1383 avformat_deps="avcodec"
1384
1385 # programs
1386 ffmpeg_deps="avcodec avformat swscale"
1387 ffmpeg_select="buffer_filter"
1388 ffplay_deps="avcodec avformat swscale sdl"
1389 ffplay_select="rdft"
1390 ffprobe_deps="avcodec avformat"
1391 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1392 ffserver_extralibs='$ldl'
1393
1394 doc_deps="texi2html"
1395
1396 # tests
1397
1398 test_deps(){
1399     suf1=$1
1400     suf2=$2
1401     shift 2
1402     for v; do
1403         dep=${v%=*}
1404         tests=${v#*=}
1405         for name in ${tests}; do
1406             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1407         done
1408     done
1409 }
1410
1411 set_ne_test_deps(){
1412     eval ${1}_be_test_deps="bigendian"
1413     eval ${1}_le_test_deps="!bigendian"
1414 }
1415
1416 test_deps _encoder _decoder                                             \
1417     ac3                                                                 \
1418     adpcm_g726=g726                                                     \
1419     adpcm_ima_qt                                                        \
1420     adpcm_ima_wav                                                       \
1421     adpcm_ms                                                            \
1422     adpcm_swf                                                           \
1423     adpcm_yamaha=adpcm_yam                                              \
1424     alac                                                                \
1425     asv1                                                                \
1426     asv2                                                                \
1427     bmp                                                                 \
1428     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1429     dvvideo="dv dv50"                                                   \
1430     ffv1                                                                \
1431     flac                                                                \
1432     flashsv                                                             \
1433     flv                                                                 \
1434     gif                                                                 \
1435     h261                                                                \
1436     h263="h263 h263p"                                                   \
1437     huffyuv                                                             \
1438     jpegls                                                              \
1439     mjpeg="jpg mjpeg ljpeg"                                             \
1440     mp2                                                                 \
1441     mpeg1video="mpeg mpeg1b"                                            \
1442     mpeg2video="mpeg2 mpeg2thread"                                      \
1443     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1444     msmpeg4v3=msmpeg4                                                   \
1445     msmpeg4v2                                                           \
1446     pbm=pbmpipe                                                         \
1447     pcx                                                                 \
1448     pgm="pgm pgmpipe"                                                   \
1449     ppm="ppm ppmpipe"                                                   \
1450     rawvideo="rgb yuv"                                                  \
1451     roq                                                                 \
1452     rv10                                                                \
1453     rv20                                                                \
1454     sgi                                                                 \
1455     snow="snow snowll"                                                  \
1456     svq1                                                                \
1457     targa=tga                                                           \
1458     tiff                                                                \
1459     wmav1                                                               \
1460     wmav2                                                               \
1461     wmv1                                                                \
1462     wmv2                                                                \
1463
1464 test_deps _muxer _demuxer                                               \
1465     aiff                                                                \
1466     pcm_alaw=alaw                                                       \
1467     asf                                                                 \
1468     au                                                                  \
1469     avi                                                                 \
1470     dv=dv_fmt                                                           \
1471     ffm                                                                 \
1472     flv=flv_fmt                                                         \
1473     gxf                                                                 \
1474     matroska=mkv                                                        \
1475     mmf                                                                 \
1476     mov                                                                 \
1477     pcm_mulaw=mulaw                                                     \
1478     mxf                                                                 \
1479     nut                                                                 \
1480     ogg                                                                 \
1481     rawvideo=pixfmt                                                     \
1482     rm                                                                  \
1483     swf                                                                 \
1484     mpegts=ts                                                           \
1485     voc                                                                 \
1486     wav                                                                 \
1487     yuv4mpegpipe=yuv4mpeg                                               \
1488
1489 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1490
1491 set_ne_test_deps pixdesc
1492
1493 # default parameters
1494
1495 logfile="config.log"
1496
1497 # installation paths
1498 prefix_default="/usr/local"
1499 bindir_default='${prefix}/bin'
1500 datadir_default='${prefix}/share/ffmpeg'
1501 incdir_default='${prefix}/include'
1502 libdir_default='${prefix}/lib'
1503 mandir_default='${prefix}/share/man'
1504 shlibdir_default="$libdir_default"
1505
1506 # toolchain
1507 ar_default="ar"
1508 cc_default="gcc"
1509 cc_version=\"unknown\"
1510 host_cc_default="gcc"
1511 ln_s="ln -sf"
1512 nm_default="nm"
1513 objformat="elf"
1514 ranlib="ranlib"
1515 strip_default="strip"
1516 yasmexe="yasm"
1517 nogas=":"
1518
1519 nm_opts='-g'
1520
1521 # machine
1522 arch_default=$(uname -m)
1523 cpu="generic"
1524
1525 # OS
1526 target_os_default=$(tolower $(uname -s))
1527 host_os=$target_os_default
1528
1529 # configurable options
1530 enable avcodec
1531 enable avcore
1532 enable avdevice
1533 enable avfilter
1534 enable avformat
1535 enable avutil
1536 enable asm
1537 enable debug
1538 enable doc
1539 enable fastdiv
1540 enable ffmpeg
1541 enable ffplay
1542 enable ffprobe
1543 enable ffserver
1544 enable mpegaudio_hp
1545 enable network
1546 enable optimizations
1547 enable protocols
1548 enable static
1549 enable stripping
1550 enable swscale
1551 enable swscale_alpha
1552
1553 # build settings
1554 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1555 FFSERVERLDFLAGS=-Wl,-E
1556 LIBPREF="lib"
1557 LIBSUF=".a"
1558 FULLNAME='$(NAME)$(BUILDSUF)'
1559 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1560 SLIBPREF="lib"
1561 SLIBSUF=".so"
1562 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1563 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1564 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1565 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1566
1567 CC_O='-o $@'
1568
1569 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1570 host_libs='-lm'
1571
1572 target_path='$(CURDIR)'
1573
1574 # since the object filename is not given with the -MM flag, the compiler
1575 # is only able to print the basename, and we must add the path ourselves
1576 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1577 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1578
1579 # find source path
1580 source_path="$(dirname "$0")"
1581 enable source_path_used
1582 if test -f configure; then
1583     source_path="$(pwd)"
1584     disable source_path_used
1585 else
1586     source_path="$(cd "$source_path"; pwd)"
1587     echo "$source_path" | grep -q '[[:blank:]]' &&
1588         die "Out of tree builds are impossible with whitespace in source path."
1589     test -e "$source_path/config.h" &&
1590         die "Out of tree builds are impossible with config.h in source dir."
1591 fi
1592
1593 for v in "$@"; do
1594     r=${v#*=}
1595     l=${v%"$r"}
1596     r=$(sh_quote "$r")
1597     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1598 done
1599
1600 find_things(){
1601     thing=$1
1602     pattern=$2
1603     file=$source_path/$3
1604     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1605 }
1606
1607 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1608 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1609 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1610 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1611 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1612 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1613 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1614 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1615 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1616 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1617 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1618
1619 find_tests(){
1620     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1621 }
1622
1623 ACODEC_TESTS=$(find_tests acodec)
1624 VCODEC_TESTS=$(find_tests vsynth1)
1625 LAVF_TESTS=$(find_tests lavf)
1626 LAVFI_TESTS=$(find_tests lavfi)
1627 SEEK_TESTS=$(find_tests seek seek_)
1628
1629 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1630
1631 for n in $COMPONENT_LIST; do
1632     v=$(toupper ${n%s})_LIST
1633     eval enable \$$v
1634     eval ${n}_if_any="\$$v"
1635 done
1636
1637 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1638
1639 die_unknown(){
1640     echo "Unknown option \"$1\"."
1641     echo "See $0 --help for available options."
1642     exit 1
1643 }
1644
1645 show_list() {
1646     suffix=_$1
1647     shift
1648     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1649     exit 0
1650 }
1651
1652 for opt do
1653     optval="${opt#*=}"
1654     case "$opt" in
1655     --extra-ldflags=*) add_ldflags $optval
1656     ;;
1657     --extra-libs=*) add_extralibs $optval
1658     ;;
1659     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1660     ;;
1661     --enable-debug=*) debuglevel="$optval"
1662     ;;
1663     --disable-everything)
1664     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1665     ;;
1666     --enable-*=*|--disable-*=*)
1667     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1668     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1669     eval list=\$$(toupper $thing)_LIST
1670     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1671     $action $(filter "$name" $list)
1672     ;;
1673     --enable-?*|--disable-?*)
1674     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1675     if is_in $option $COMPONENT_LIST; then
1676         test $action = disable && action=unset
1677         eval $action \$$(toupper ${option%s})_LIST
1678     elif is_in $option $CMDLINE_SELECT; then
1679         $action $option
1680     else
1681         die_unknown $opt
1682     fi
1683     ;;
1684     --list-*)
1685         NAME="${opt#--list-}"
1686         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1687         NAME=${NAME%s}
1688         eval show_list $NAME \$$(toupper $NAME)_LIST
1689     ;;
1690     --help|-h) show_help
1691     ;;
1692     *)
1693     optname="${opt%%=*}"
1694     optname="${optname#--}"
1695     optname=$(echo "$optname" | sed 's/-/_/g')
1696     if is_in $optname $CMDLINE_SET; then
1697         eval $optname='$optval'
1698     elif is_in $optname $CMDLINE_APPEND; then
1699         append $optname "$optval"
1700     else
1701          die_unknown $opt
1702     fi
1703     ;;
1704     esac
1705 done
1706
1707 disabled logging && logfile=/dev/null
1708
1709 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1710 set >> $logfile
1711
1712 test -n "$cross_prefix" && enable cross_compile
1713
1714 if enabled cross_compile; then
1715     test -n "$arch" && test -n "$target_os" ||
1716         die "Must specify target arch and OS when cross-compiling"
1717 fi
1718
1719 set_default arch target_os
1720
1721 ar_default="${cross_prefix}${ar_default}"
1722 cc_default="${cross_prefix}${cc_default}"
1723 nm_default="${cross_prefix}${nm_default}"
1724 ranlib="${cross_prefix}${ranlib}"
1725 strip_default="${cross_prefix}${strip_default}"
1726
1727 sysinclude_default="${sysroot}/usr/include"
1728
1729 set_default cc nm strip sysinclude
1730 enabled cross_compile || host_cc_default=$cc
1731 set_default host_cc
1732
1733 exesuf() {
1734     case $1 in
1735         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1736     esac
1737 }
1738
1739 EXESUF=$(exesuf $target_os)
1740 HOSTEXESUF=$(exesuf $host_os)
1741
1742 # set temporary file name
1743 : ${TMPDIR:=$TEMPDIR}
1744 : ${TMPDIR:=$TMP}
1745 : ${TMPDIR:=/tmp}
1746
1747 if ! check_cmd type mktemp; then
1748     # simple replacement for missing mktemp
1749     # NOT SAFE FOR GENERAL USE
1750     mktemp(){
1751         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1752     }
1753 fi
1754
1755 tmpfile(){
1756     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1757         (set -C; exec > $tmp) 2>/dev/null ||
1758         die "Unable to create temporary file in $TMPDIR."
1759     append TMPFILES $tmp
1760     eval $1=$tmp
1761 }
1762
1763 trap 'rm -f -- $TMPFILES' EXIT
1764 trap exit HUP INT TERM
1765
1766 tmpfile TMPC  .c
1767 tmpfile TMPE  $EXESUF
1768 tmpfile TMPH  .h
1769 tmpfile TMPO  .o
1770 tmpfile TMPS  .S
1771 tmpfile TMPV  .ver
1772 tmpfile TMPSH .sh
1773
1774 unset -f mktemp
1775
1776 # make sure we can execute files in $TMPDIR
1777 cat > $TMPSH 2>> $logfile <<EOF
1778 #! /bin/sh
1779 EOF
1780 chmod +x $TMPSH >> $logfile 2>&1
1781 if ! $TMPSH >> $logfile 2>&1; then
1782     cat <<EOF
1783 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1784 variable to another directory and make sure that it is not mounted noexec.
1785 EOF
1786     die "Sanity test failed."
1787 fi
1788
1789 filter_cflags=echo
1790 filter_cppflags=echo
1791 filter_asflags=echo
1792
1793 if   $cc -v 2>&1 | grep -qi ^gcc; then
1794     cc_type=gcc
1795     cc_version=__VERSION__
1796     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1797     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1798     if ! $cc -dumpversion | grep -q '^2\.'; then
1799         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1800         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1801     fi
1802     speed_cflags='-O3'
1803     size_cflags='-Os'
1804 elif $cc --version 2>/dev/null | grep -q Intel; then
1805     cc_type=icc
1806     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1807     cc_ident=$($cc --version | head -n1)
1808     CC_DEPFLAGS='-MMD'
1809     AS_DEPFLAGS='-MMD'
1810     speed_cflags='-O3'
1811     size_cflags='-Os'
1812     noopt_cflags='-O1'
1813 elif $cc -v 2>&1 | grep -q xlc; then
1814     cc_type=xlc
1815     cc_version="AV_STRINGIFY(__IBMC__)"
1816     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1817     speed_cflags='-O5'
1818     size_cflags='-O5 -qcompact'
1819 elif $cc -V 2>/dev/null | grep -q Compaq; then
1820     cc_type=ccc
1821     cc_version="AV_STRINGIFY(__DECC_VER)"
1822     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1823     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1824     debuglevel=3
1825     add_ldflags -Wl,-z,now # calls to libots crash without this
1826     speed_cflags='-fast'
1827     size_cflags='-O1'
1828 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1829     test -d "$sysroot" || die "No valid sysroot specified."
1830     cc_type=armcc
1831     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1832     cc_ident=$($cc --vsn | head -n1)
1833     armcc_conf="$PWD/armcc.conf"
1834     $cc --arm_linux_configure                 \
1835         --arm_linux_config_file="$armcc_conf" \
1836         --configure_sysroot="$sysroot"        \
1837         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1838         die "Error creating armcc configuration file."
1839     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1840     as_default="${cross_prefix}gcc"
1841     CC_DEPFLAGS='-MMD'
1842     AS_DEPFLAGS='-MMD'
1843     speed_cflags='-O3'
1844     size_cflags='-Os'
1845 elif $cc -version 2>/dev/null | grep -q TMS470; then
1846     cc_type=tms470
1847     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1848     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1849     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1850     CC_O='-fr=$(@D)'
1851     as_default="${cross_prefix}gcc"
1852     ld_default="${cross_prefix}gcc"
1853     TMPO=$(basename $TMPC .c).o
1854     append TMPFILES $TMPO
1855     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1856     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1857     AS_DEPFLAGS='-MMD'
1858     speed_cflags='-O3 -mf=5'
1859     size_cflags='-O3 -mf=2'
1860     filter_cflags=tms470_flags
1861     tms470_flags(){
1862         for flag; do
1863             case $flag in
1864                 -march=*|-mcpu=*)
1865                     case "${flag#*=}" in
1866                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1867                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1868                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1869                         armv6*|arm11*)          echo -mv=6   ;;
1870                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1871                                                 echo -mv=5e  ;;
1872                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1873                     esac
1874                     ;;
1875                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1876                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1877                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1878                 -msoft-float)   echo --float_support=vfplib       ;;
1879                 -O[0-3]|-mf=*)  echo $flag                        ;;
1880                 -g)             echo -g -mn                       ;;
1881                 -pds=*)         echo $flag                        ;;
1882             esac
1883         done
1884     }
1885 elif $cc -v 2>&1 | grep -q clang; then
1886     cc_type=clang
1887     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1888         cc_version=__clang_version__ || cc_version=__VERSION__
1889     cc_ident=$($cc --version | head -n1)
1890     CC_DEPFLAGS='-MMD'
1891     AS_DEPFLAGS='-MMD'
1892     speed_cflags='-O3'
1893     size_cflags='-Os'
1894 elif $cc -V 2>&1 | grep -q Sun; then
1895     cc_type=suncc
1896     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1897     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1898     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1899     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1900     speed_cflags='-O5'
1901     size_cflags='-O5 -xspace'
1902     filter_cflags=suncc_flags
1903     suncc_flags(){
1904         for flag; do
1905             case $flag in
1906                 -march=*|-mcpu=*)
1907                     case "${flag#*=}" in
1908                         native)                   echo -xtarget=native       ;;
1909                         v9|niagara)               echo -xarch=sparc          ;;
1910                         ultrasparc)               echo -xarch=sparcvis       ;;
1911                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1912                         i586|pentium)             echo -xchip=pentium        ;;
1913                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1914                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1915                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1916                         pentium4*)          echo -xtarget=pentium4           ;;
1917                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1918                         *-sse3)             echo -xarch=sse3                 ;;
1919                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1920                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1921                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1922                         k8|opteron|athlon64|athlon-fx)
1923                                                   echo -xarch=sse2a          ;;
1924                         athlon*)                  echo -xarch=pentium_proa   ;;
1925                     esac
1926                     ;;
1927                 -std=c99)             echo -xc99              ;;
1928                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1929                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1930                 -W*,*)                echo $flag              ;;
1931                 -f*-*|-W*)                                    ;;
1932                 *)                    echo $flag              ;;
1933             esac
1934         done
1935     }
1936 elif $cc -v 2>&1 | grep -q PathScale; then
1937     cc_type=pathscale
1938     cc_version=__PATHSCALE__
1939     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1940     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1941     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1942     speed_cflags='-O2'
1943     size_cflags='-Os'
1944 fi
1945
1946 test -n "$cc_type" && enable $cc_type ||
1947     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1948
1949 : ${as_default:=$cc}
1950 : ${dep_cc_default:=$cc}
1951 : ${ld_default:=$cc}
1952 set_default ar as dep_cc ld
1953
1954 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1955 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1956
1957 add_cflags $extra_cflags
1958 add_asflags $extra_cflags
1959
1960 if test -n "$sysroot"; then
1961     case "$cc_type" in
1962         gcc)
1963             add_cppflags --sysroot="$sysroot"
1964             add_ldflags --sysroot="$sysroot"
1965         ;;
1966         tms470)
1967             add_cppflags -I"$sysinclude"
1968             add_ldflags  --sysroot="$sysroot"
1969         ;;
1970         clang)
1971             add_cppflags -isysroot "$sysroot"
1972             add_ldflags -isysroot "$sysroot"
1973         ;;
1974     esac
1975 fi
1976
1977 if test "$cpu" = host; then
1978     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1979
1980     case "$cc_type" in
1981         gcc)
1982             check_native(){
1983                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1984                 sed -n "/$1=/{
1985                             s/.*$1=\\([^ ]*\\).*/\\1/
1986                             p
1987                             q
1988                         }" $TMPE
1989             }
1990             cpu=$(check_native -march || check_native -mcpu)
1991         ;;
1992     esac
1993
1994     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1995 fi
1996
1997 # Deal with common $arch aliases
1998 case "$arch" in
1999     arm*)
2000         arch="arm"
2001     ;;
2002     mips|mipsel|IP*)
2003         arch="mips"
2004     ;;
2005     mips64*)
2006         arch="mips"
2007         subarch="mips64"
2008     ;;
2009     parisc|hppa)
2010         arch="parisc"
2011     ;;
2012     parisc64|hppa64)
2013         arch="parisc"
2014         subarch="parisc64"
2015     ;;
2016     "Power Macintosh"|ppc|powerpc)
2017         arch="ppc"
2018     ;;
2019     ppc64|powerpc64)
2020         arch="ppc"
2021         subarch="ppc64"
2022     ;;
2023     s390|s390x)
2024         arch="s390"
2025     ;;
2026     sh4|sh)
2027         arch="sh4"
2028     ;;
2029     sun4u|sparc64)
2030         arch="sparc"
2031         subarch="sparc64"
2032     ;;
2033     i[3-6]86|i86pc|BePC|x86_64|amd64)
2034         arch="x86"
2035     ;;
2036 esac
2037
2038 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2039 enable $arch
2040
2041 # Add processor-specific flags
2042 if test "$cpu" = generic; then
2043     : do nothing
2044 elif enabled ppc; then
2045
2046     case $(tolower $cpu) in
2047         601|ppc601|powerpc601)
2048             cpuflags="-mcpu=601"
2049             disable altivec
2050         ;;
2051         603*|ppc603*|powerpc603*)
2052             cpuflags="-mcpu=603"
2053             disable altivec
2054         ;;
2055         604*|ppc604*|powerpc604*)
2056             cpuflags="-mcpu=604"
2057             disable altivec
2058         ;;
2059         g3|75*|ppc75*|powerpc75*)
2060             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2061             disable altivec
2062         ;;
2063         g4|745*|ppc745*|powerpc745*)
2064             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2065         ;;
2066         74*|ppc74*|powerpc74*)
2067             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2068         ;;
2069         g5|970|ppc970|powerpc970|power4*)
2070             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2071         ;;
2072         cell)
2073             cpuflags="-mcpu=cell"
2074             enable ldbrx
2075         ;;
2076         e500v2)
2077             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2078             disable altivec
2079         ;;
2080         e500)
2081             cpuflags="-mcpu=8540 -mhard-float"
2082             disable altivec
2083         ;;
2084     esac
2085
2086 elif enabled x86; then
2087
2088     case $cpu in
2089         i[345]86|pentium)
2090             cpuflags="-march=$cpu"
2091             disable mmx
2092         ;;
2093         # targets that do NOT support conditional mov (cmov)
2094         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2095             cpuflags="-march=$cpu"
2096             disable cmov
2097         ;;
2098         # targets that do support conditional mov (cmov)
2099         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2100             cpuflags="-march=$cpu"
2101             enable cmov
2102             enable fast_cmov
2103         ;;
2104         # targets that do support conditional mov but on which it's slow
2105         pentium4|pentium4m|prescott|nocona)
2106             cpuflags="-march=$cpu"
2107             enable cmov
2108             disable fast_cmov
2109         ;;
2110     esac
2111
2112 elif enabled sparc; then
2113
2114     case $cpu in
2115         niagara)
2116             cpuflags="-mcpu=$cpu"
2117             disable vis
2118         ;;
2119         sparc64)
2120             cpuflags="-mcpu=v9"
2121         ;;
2122     esac
2123
2124 elif enabled arm; then
2125
2126     case $cpu in
2127         armv*)
2128             cpuflags="-march=$cpu"
2129             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2130         ;;
2131         *)
2132             cpuflags="-mcpu=$cpu"
2133             case $cpu in
2134                 cortex-a*)                               subarch=armv7a  ;;
2135                 cortex-r*)                               subarch=armv7r  ;;
2136                 cortex-m*)                               subarch=armv7m  ;;
2137                 arm11*)                                  subarch=armv6   ;;
2138                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2139                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2140             esac
2141         ;;
2142     esac
2143
2144 elif enabled alpha; then
2145
2146     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2147
2148 elif enabled bfin; then
2149
2150     cpuflags="-mcpu=$cpu"
2151
2152 elif enabled mips; then
2153
2154     cpuflags="-march=$cpu"
2155
2156 elif enabled avr32; then
2157
2158     case $cpu in
2159         ap7[02]0[0-2])
2160             subarch="avr32_ap"
2161             cpuflags="-mpart=$cpu"
2162         ;;
2163         ap)
2164             subarch="avr32_ap"
2165             cpuflags="-march=$cpu"
2166         ;;
2167         uc3[ab]*)
2168             subarch="avr32_uc"
2169             cpuflags="-mcpu=$cpu"
2170         ;;
2171         uc)
2172             subarch="avr32_uc"
2173             cpuflags="-march=$cpu"
2174         ;;
2175     esac
2176
2177 fi
2178
2179 add_cflags $cpuflags
2180 add_asflags $cpuflags
2181
2182 # compiler sanity check
2183 check_exec <<EOF
2184 int main(void){ return 0; }
2185 EOF
2186 if test "$?" != 0; then
2187     echo "$cc is unable to create an executable file."
2188     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2189         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2190         echo "Only do this if you know what cross compiling means."
2191     fi
2192     die "C compiler test failed."
2193 fi
2194
2195 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2196 check_cflags -std=c99
2197 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2198 #include <stdlib.h>
2199 EOF
2200 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2201 #include <stdlib.h>
2202 EOF
2203
2204 check_host_cflags -std=c99
2205
2206 case "$arch" in
2207     alpha|ia64|mips|parisc|sparc)
2208         spic=$shared
2209     ;;
2210     x86)
2211         subarch="x86_32"
2212         check_cc <<EOF && subarch="x86_64"
2213         int test[(int)sizeof(char*) - 7];
2214 EOF
2215         if test "$subarch" = "x86_64"; then
2216             spic=$shared
2217         fi
2218     ;;
2219 esac
2220
2221 enable $subarch
2222 enabled spic && enable pic
2223
2224 # OS specific
2225 case $target_os in
2226     haiku)
2227         prefix_default="/boot/common"
2228         network_extralibs="-lnetwork"
2229         ;;
2230     sunos)
2231         FFSERVERLDFLAGS=""
2232         SHFLAGS='-shared -Wl,-h,$$(@F)'
2233         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2234         network_extralibs="-lsocket -lnsl"
2235         add_cppflags -D__EXTENSIONS__
2236         nm_opts='-P -g'
2237         ;;
2238     netbsd)
2239         oss_indev_extralibs="-lossaudio"
2240         oss_outdev_extralibs="-lossaudio"
2241         add_cppflags -D_XOPEN_SOURCE=600
2242         ;;
2243     openbsd)
2244         enable malloc_aligned
2245         # On OpenBSD 4.5. the compiler does not use PIC unless
2246         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2247         # however the generated executable will not do anything
2248         # (simply quits with exit-code 1, no crash, no output).
2249         # Thus explicitly enable PIC here.
2250         enable pic
2251         SHFLAGS='-shared'
2252         oss_indev_extralibs="-lossaudio"
2253         oss_outdev_extralibs="-lossaudio"
2254         ;;
2255     freebsd|dragonfly)
2256         enable malloc_aligned
2257         ;;
2258     bsd/os)
2259         add_extralibs -lpoll -lgnugetopt
2260         strip="strip -d"
2261         ;;
2262     darwin)
2263         enable malloc_aligned
2264         gas="gas-preprocessor.pl $cc"
2265         enabled ppc && add_asflags -force_cpusubtype_ALL
2266         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2267         strip="${strip} -x"
2268         add_ldflags -Wl,-dynamic,-search_paths_first
2269         SLIBSUF=".dylib"
2270         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2271         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2272         FFSERVERLDFLAGS=-Wl,-bind_at_load
2273         objformat="macho"
2274         enabled x86_64 && objformat="macho64"
2275         enabled_any pic shared ||
2276             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2277         ;;
2278     mingw32*)
2279         if test $target_os = "mingw32ce"; then
2280             disable network
2281         else
2282             target_os=mingw32
2283         fi
2284         LIBTARGET=i386
2285         if enabled x86_64; then
2286             enable malloc_aligned
2287             LIBTARGET=x64
2288         elif enabled arm; then
2289             LIBTARGET=arm
2290         fi
2291         shlibdir_default="$bindir_default"
2292         disable ffserver
2293         SLIBPREF=""
2294         SLIBSUF=".dll"
2295         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2296         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2297         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2298         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2299             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2300             install -d "$(LIBDIR)"; \
2301             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2302         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2303         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'
2304         objformat="win32"
2305         enable dos_paths
2306         check_cflags -fno-common
2307         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2308                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2309                 die "ERROR: MinGW runtime version must be >= 3.15."
2310         ;;
2311     cygwin*)
2312         target_os=cygwin
2313         shlibdir_default="$bindir_default"
2314         SLIBPREF="cyg"
2315         SLIBSUF=".dll"
2316         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2317         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2318         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2319         objformat="win32"
2320         enable dos_paths
2321         check_cflags -fno-common
2322         ;;
2323     *-dos|freedos|opendos)
2324         disable ffplay ffserver
2325         disable $INDEV_LIST $OUTDEV_LIST
2326         network_extralibs="-lsocket"
2327         objformat="coff"
2328         enable dos_paths
2329         ;;
2330     linux)
2331         enable dv1394
2332         ;;
2333     irix*)
2334         target_os=irix
2335         ranlib="echo ignoring ranlib"
2336         ;;
2337     os/2*)
2338         strip="lxlite"
2339         ln_s="cp -f"
2340         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2341         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2342         FFSERVERLDFLAGS=""
2343         LIBSUF="_s.a"
2344         SLIBPREF=""
2345         SLIBSUF=".dll"
2346         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2347         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2348         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2349           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2350           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2351           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2352           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2353           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2354         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2355           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2356         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2357         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2358         enable dos_paths
2359         ;;
2360     gnu/kfreebsd)
2361         ;;
2362     gnu)
2363         ;;
2364     none)
2365         ;;
2366     *)
2367         die "Unknown OS '$target_os'."
2368         ;;
2369 esac
2370
2371 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2372
2373 set_default $PATHS_LIST
2374
2375 # we need to build at least one lib type
2376 if ! enabled_any static shared; then
2377     cat <<EOF
2378 At least one library type must be built.
2379 Specify --enable-static to build the static libraries or --enable-shared to
2380 build the shared libraries as well. To only build the shared libraries specify
2381 --disable-static in addition to --enable-shared.
2382 EOF
2383     exit 1;
2384 fi
2385
2386 disabled static && LIBNAME=""
2387
2388 die_license_disabled() {
2389     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2390 }
2391
2392 die_license_disabled gpl libx264
2393 die_license_disabled gpl libxavs
2394 die_license_disabled gpl libxvid
2395 die_license_disabled gpl postproc
2396 die_license_disabled gpl x11grab
2397
2398 die_license_disabled nonfree libfaac
2399
2400 die_license_disabled version3 libopencore_amrnb
2401 die_license_disabled version3 libopencore_amrwb
2402
2403 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2404
2405 check_deps $ARCH_EXT_LIST
2406
2407 disabled optimizations || check_cflags -fomit-frame-pointer
2408
2409 enable_pic() {
2410     enable pic
2411     add_cppflags -DPIC
2412     add_cflags   -fPIC
2413     add_asflags  -fPIC
2414 }
2415
2416 enabled pic && enable_pic
2417
2418 check_cc <<EOF || die "Symbol mangling check failed."
2419 int ff_extern;
2420 EOF
2421 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2422 extern_prefix=${sym%%ff_extern*}
2423
2424 check_cc <<EOF && enable inline_asm
2425 void foo(void) { __asm__ volatile ("" ::); }
2426 EOF
2427
2428 _restrict=
2429 for restrict_keyword in restrict __restrict__ __restrict; do
2430     check_cc <<EOF && _restrict=$restrict_keyword && break
2431 void foo(char * $restrict_keyword p);
2432 EOF
2433 done
2434
2435 check_cc <<EOF && enable attribute_packed
2436 struct { int x; } __attribute__((packed)) x;
2437 EOF
2438
2439 check_cc <<EOF && enable attribute_may_alias
2440 union { int x; } __attribute__((may_alias)) x;
2441 EOF
2442
2443 check_cc <<EOF || die "endian test failed"
2444 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2445 EOF
2446 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2447
2448 if enabled alpha; then
2449
2450     check_cflags -mieee
2451
2452 elif enabled arm; then
2453
2454     check_cflags -marm
2455     nogas=die
2456
2457     check_ld <<EOF && enable vfp_args
2458 __asm__ (".eabi_attribute 28, 1");
2459 int main(void) { return 0; }
2460 EOF
2461
2462     # We have to check if pld is a nop and disable it.
2463     check_asm pld '"pld [r0]"'
2464
2465     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2466     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2467     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2468     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2469     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2470     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2471
2472     enabled_all armv6t2 shared !pic && enable_pic
2473
2474 elif enabled mips; then
2475
2476     check_asm loongson '"dmult.g $1, $2, $3"'
2477     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2478
2479 elif enabled ppc; then
2480
2481     enable local_aligned_8 local_aligned_16
2482
2483     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2484     check_asm ibm_asm   '"add 0, 0, 0"'
2485     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2486     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2487
2488     # AltiVec flags: The FSF version of GCC differs from the Apple version
2489     if enabled altivec; then
2490         nogas=warn
2491         check_cflags -maltivec -mabi=altivec &&
2492         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2493         check_cflags -faltivec
2494
2495         # check if our compiler supports Motorola AltiVec C API
2496         check_cc <<EOF || disable altivec
2497 $inc_altivec_h
2498 int main(void) {
2499     vector signed int v1, v2, v3;
2500     v1 = vec_add(v2,v3);
2501     return 0;
2502 }
2503 EOF
2504
2505         # check if our compiler supports braces for vector declarations
2506         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2507 $inc_altivec_h
2508 int main (void) { (vector int) {1}; return 0; }
2509 EOF
2510     fi
2511
2512 elif enabled sparc; then
2513
2514     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2515         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2516
2517 elif enabled x86; then
2518
2519     enable local_aligned_8 local_aligned_16
2520
2521     # check whether EBP is available on x86
2522     # As 'i' is stored on the stack, this program will crash
2523     # if the base pointer is used to access it because the
2524     # base pointer is cleared in the inline assembly code.
2525     check_exec_crash <<EOF && enable ebp_available
2526     volatile int i=0;
2527     __asm__ volatile (
2528         "xorl %%ebp, %%ebp"
2529     ::: "%ebp");
2530     return i;
2531 EOF
2532
2533     # check whether EBX is available on x86
2534     check_asm ebx_available '""::"b"(0)' &&
2535         check_asm ebx_available '"":::"%ebx"'
2536
2537     # check whether more than 10 operands are supported
2538     check_cc <<EOF && enable ten_operands
2539 int main(void) {
2540     int x=0;
2541     __asm__ volatile(
2542         ""
2543         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2544     );
2545     return 0;
2546 }
2547 EOF
2548
2549     # check whether binutils is new enough to compile SSSE3/MMX2
2550     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2551     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2552
2553     check_asm bswap '"bswap %%eax" ::: "%eax"'
2554
2555     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2556     enabled     x86_64        && append YASMFLAGS "-m amd64"
2557     enabled     pic           && append YASMFLAGS "-DPIC"
2558     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2559     case "$objformat" in
2560         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2561     esac
2562     if ! disabled yasm; then
2563         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2564             warn "yasm not found, performance will suffer"
2565     fi
2566
2567     case "$cpu" in
2568         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2569             disable fast_clz
2570         ;;
2571     esac
2572
2573 fi
2574
2575 if enabled asm; then
2576     as=${gas:=$as}
2577     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2578         $nogas "GNU assembler not found, install gas-preprocessor"
2579 fi
2580
2581 if check_func dlopen; then
2582     ldl=
2583 elif check_func dlopen -ldl; then
2584     ldl=-ldl
2585 fi
2586
2587 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2588 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2589
2590 check_func  fcntl
2591 check_func  fork
2592 check_func  getaddrinfo $network_extralibs
2593 check_func  gethrtime
2594 check_func  getrusage
2595 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2596 check_func  inet_aton $network_extralibs
2597 check_func  isatty
2598 check_func  ${malloc_prefix}memalign            && enable memalign
2599 check_func  mkstemp
2600 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2601 check_func  setrlimit
2602 check_func  strerror_r
2603 check_func_headers io.h setmode
2604 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2605 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2606 check_func_headers windows.h GetProcessTimes
2607 check_func_headers windows.h VirtualAlloc
2608
2609 check_header conio.h
2610 check_header dlfcn.h
2611 check_header dxva2api.h
2612 check_header malloc.h
2613 check_header poll.h
2614 check_header sys/mman.h
2615 check_header sys/resource.h
2616 check_header sys/select.h
2617 check_header termios.h
2618 check_header vdpau/vdpau.h
2619 check_header vdpau/vdpau_x11.h
2620 check_header X11/extensions/XvMClib.h
2621
2622 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2623
2624 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2625      enabled_any $need_memalign ; then
2626     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2627 fi
2628
2629 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2630 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2631
2632 # check for some common methods of building with pthread support
2633 # do this before the optional library checks as some of them require pthreads
2634 if ! disabled pthreads && ! enabled w32threads; then
2635     enable pthreads
2636     if check_func pthread_create; then
2637         :
2638     elif check_func pthread_create -pthread; then
2639         add_cflags -pthread
2640         add_extralibs -pthread
2641     elif check_func pthread_create -pthreads; then
2642         add_cflags -pthreads
2643         add_extralibs -pthreads
2644     elif check_func pthread_create -lpthreadGC2; then
2645         add_extralibs -lpthreadGC2
2646     elif ! check_lib pthread.h pthread_create -lpthread; then
2647         disable pthreads
2648     fi
2649 fi
2650
2651 for thread in $THREADS_LIST; do
2652     if enabled $thread; then
2653         test -n "$thread_type" &&
2654             die "ERROR: Only one thread type must be selected." ||
2655             thread_type="$thread"
2656     fi
2657 done
2658
2659 check_lib math.h sin -lm
2660 disabled vaapi || check_lib va/va.h vaInitialize -lva
2661
2662 check_mathfunc exp2
2663 check_mathfunc exp2f
2664 check_mathfunc llrint
2665 check_mathfunc llrintf
2666 check_mathfunc log2
2667 check_mathfunc log2f
2668 check_mathfunc lrint
2669 check_mathfunc lrintf
2670 check_mathfunc round
2671 check_mathfunc roundf
2672 check_mathfunc truncf
2673
2674 # these are off by default, so fail if requested and not available
2675 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2676 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2677                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2678                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2679 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2680 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2681 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2682 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2683 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2684 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2685 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2686 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2687                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2688 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2689                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2690 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2691 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2692 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2693 enabled libvpx     && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx &&
2694                         check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2695                       die "ERROR: libvpx version must be >=0.9.1"; }
2696 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2697                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2698                         die "ERROR: libx264 version must be >= 0.98."; }
2699 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2700 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2701 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2702
2703 # libdc1394 check
2704 if enabled libdc1394; then
2705     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2706         enable libdc1394_2; } ||
2707     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2708         enable libdc1394_1; } ||
2709     die "ERROR: No version of libdc1394 found "
2710 fi
2711
2712 SDL_CONFIG="${cross_prefix}sdl-config"
2713 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2714     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2715     sdl_libs=$("${SDL_CONFIG}" --libs)
2716     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2717     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2718     enable sdl &&
2719     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2720 fi
2721
2722 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2723
2724 if enabled network; then
2725     check_type "sys/types.h sys/socket.h" socklen_t
2726     check_type netdb.h "struct addrinfo"
2727     check_type netinet/in.h "struct ipv6_mreq"
2728     check_type netinet/in.h "struct sockaddr_in6"
2729     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2730     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2731     # Prefer arpa/inet.h over winsock2
2732     if check_header arpa/inet.h ; then
2733         check_func closesocket
2734     elif check_header winsock2.h ; then
2735         check_func_headers winsock2.h closesocket -lws2 && \
2736             network_extralibs="-lws2" || \
2737         { check_func_headers winsock2.h closesocket -lws2_32 && \
2738             network_extralibs="-lws2_32"; }
2739         check_type ws2tcpip.h socklen_t
2740         check_type ws2tcpip.h "struct addrinfo"
2741         check_type ws2tcpip.h "struct ipv6_mreq"
2742         check_type ws2tcpip.h "struct sockaddr_in6"
2743         check_type ws2tcpip.h "struct sockaddr_storage"
2744         check_struct winsock2.h "struct sockaddr" sa_len
2745     else
2746         disable network
2747     fi
2748 fi
2749
2750 check_header linux/videodev.h
2751 check_header linux/videodev2.h
2752 check_header sys/videoio.h
2753
2754 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2755 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2756 # w32api 3.12 had it defined wrong
2757 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2758
2759 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2760 { check_header dev/bktr/ioctl_meteor.h &&
2761   check_header dev/bktr/ioctl_bt848.h; } ||
2762 { check_header machine/ioctl_meteor.h &&
2763   check_header machine/ioctl_bt848.h; } ||
2764 { check_header dev/video/meteor/ioctl_meteor.h &&
2765   check_header dev/video/bktr/ioctl_bt848.h; } ||
2766 check_header dev/ic/bt8xx.h
2767
2768 check_header sys/soundcard.h
2769 check_header soundcard.h
2770
2771 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2772
2773 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2774
2775 enabled x11grab                         &&
2776 check_header X11/Xlib.h                 &&
2777 check_header X11/extensions/XShm.h      &&
2778 check_header X11/extensions/Xfixes.h    &&
2779 check_func XOpenDisplay -lX11           &&
2780 check_func XShmCreateImage -lX11 -lXext &&
2781 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2782
2783 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2784 check_cpp_condition \
2785     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2786     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2787       disable vdpau; }
2788 fi
2789
2790 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2791
2792 # add some useful compiler flags if supported
2793 check_cflags -Wdeclaration-after-statement
2794 check_cflags -Wall
2795 check_cflags -Wno-switch
2796 check_cflags -Wdisabled-optimization
2797 check_cflags -Wpointer-arith
2798 check_cflags -Wredundant-decls
2799 check_cflags -Wno-pointer-sign
2800 check_cflags -Wcast-qual
2801 check_cflags -Wwrite-strings
2802 check_cflags -Wtype-limits
2803 check_cflags -Wundef
2804 check_cflags -Wmissing-prototypes
2805 enabled extra_warnings && check_cflags -Winline
2806
2807 # add some linker flags
2808 check_ldflags -Wl,--warn-common
2809 check_ldflags -Wl,--as-needed
2810 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavcore -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2811 check_ldflags -Wl,-Bsymbolic
2812
2813 echo "X{};" > $TMPV
2814 if test_ldflags -Wl,--version-script,$TMPV; then
2815     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2816     check_cc <<EOF && enable symver_asm_label
2817 void ff_foo(void) __asm__ ("av_foo@VERSION");
2818 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2819 EOF
2820     check_cc <<EOF && enable symver_gnu_asm
2821 __asm__(".symver ff_foo,av_foo@VERSION");
2822 void ff_foo(void) {}
2823 EOF
2824 fi
2825
2826 if enabled small; then
2827     add_cflags $size_cflags
2828     optimizations="small"
2829 elif enabled optimizations; then
2830     add_cflags $speed_cflags
2831 else
2832     add_cflags $noopt_cflags
2833 fi
2834 check_cflags -fno-math-errno
2835 check_cflags -fno-signed-zeros
2836
2837 if enabled icc; then
2838     # Just warnings, no remarks
2839     check_cflags -w1
2840     # -wd: Disable following warnings
2841     # 144, 167, 556: -Wno-pointer-sign
2842     # 10006: ignoring unknown option -fno-signed-zeros
2843     # 10156: ignoring option '-W'; no argument required
2844     check_cflags -wd144,167,556,10006,10156
2845     # 11030: Warning unknown option --as-needed
2846     # 10156: ignoring option '-export'; no argument required
2847     check_ldflags -wd10156,11030
2848     # Allow to compile with optimizations
2849     check_ldflags -march=$cpu
2850     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2851     enable ebp_available
2852 elif enabled ccc; then
2853     # disable some annoying warnings
2854     add_cflags -msg_disable cvtu32to64
2855     add_cflags -msg_disable embedcomment
2856     add_cflags -msg_disable needconstext
2857     add_cflags -msg_disable nomainieee
2858     add_cflags -msg_disable ptrmismatch1
2859     add_cflags -msg_disable unreachcode
2860 elif enabled gcc; then
2861     check_cflags -fno-tree-vectorize
2862     check_cflags -Werror=implicit-function-declaration
2863     check_cflags -Werror=missing-prototypes
2864 elif enabled clang; then
2865     check_cflags -Qunused-arguments
2866 elif enabled armcc; then
2867     # 2523: use of inline assembler is deprecated
2868     add_cflags -Wrvct,--diag_suppress=2523
2869     add_cflags -Wrvct,--diag_suppress=1207
2870 elif enabled tms470; then
2871     add_cflags -pds=824 -pds=837
2872 fi
2873
2874 enabled_any $THREADS_LIST      && enable threads
2875
2876 check_deps $CONFIG_LIST       \
2877            $CONFIG_EXTRA      \
2878            $HAVE_LIST         \
2879            $DECODER_LIST      \
2880            $ENCODER_LIST      \
2881            $HWACCEL_LIST      \
2882            $PARSER_LIST       \
2883            $BSF_LIST          \
2884            $DEMUXER_LIST      \
2885            $MUXER_LIST        \
2886            $FILTER_LIST       \
2887            $INDEV_LIST        \
2888            $OUTDEV_LIST       \
2889            $PROTOCOL_LIST     \
2890            $ACODEC_TESTS      \
2891            $VCODEC_TESTS      \
2892            $LAVF_TESTS        \
2893            $LAVFI_TESTS       \
2894            $SEEK_TESTS        \
2895
2896 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2897
2898 echo "install prefix            $prefix"
2899 echo "source path               $source_path"
2900 echo "C compiler                $cc"
2901 echo "ARCH                      $arch ($cpu)"
2902 if test "$build_suffix" != ""; then
2903     echo "build suffix              $build_suffix"
2904 fi
2905 if test "$extra_version" != ""; then
2906     echo "version string suffix     $extra_version"
2907 fi
2908 echo "big-endian                ${bigendian-no}"
2909 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2910 if enabled x86; then
2911     echo "yasm                      ${yasm-no}"
2912     echo "MMX enabled               ${mmx-no}"
2913     echo "MMX2 enabled              ${mmx2-no}"
2914     echo "3DNow! enabled            ${amd3dnow-no}"
2915     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2916     echo "SSE enabled               ${sse-no}"
2917     echo "SSSE3 enabled             ${ssse3-no}"
2918     echo "CMOV enabled              ${cmov-no}"
2919     echo "CMOV is fast              ${fast_cmov-no}"
2920     echo "EBX available             ${ebx_available-no}"
2921     echo "EBP available             ${ebp_available-no}"
2922     echo "10 operands supported     ${ten_operands-no}"
2923 fi
2924 if enabled arm; then
2925     echo "ARMv5TE enabled           ${armv5te-no}"
2926     echo "ARMv6 enabled             ${armv6-no}"
2927     echo "ARMv6T2 enabled           ${armv6t2-no}"
2928     echo "ARM VFP enabled           ${armvfp-no}"
2929     echo "IWMMXT enabled            ${iwmmxt-no}"
2930     echo "NEON enabled              ${neon-no}"
2931 fi
2932 if enabled mips; then
2933     echo "MMI enabled               ${mmi-no}"
2934 fi
2935 if enabled ppc; then
2936     echo "AltiVec enabled           ${altivec-no}"
2937     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2938     echo "dcbzl available           ${dcbzl-no}"
2939 fi
2940 if enabled sparc; then
2941     echo "VIS enabled               ${vis-no}"
2942 fi
2943 echo "debug symbols             ${debug-no}"
2944 echo "strip symbols             ${stripping-no}"
2945 echo "optimizations             ${optimizations-no}"
2946 echo "static                    ${static-no}"
2947 echo "shared                    ${shared-no}"
2948 echo "postprocessing support    ${postproc-no}"
2949 echo "new filter support        ${avfilter-no}"
2950 echo "network support           ${network-no}"
2951 echo "threading support         ${thread_type-no}"
2952 echo "SDL support               ${sdl-no}"
2953 echo "Sun medialib support      ${mlib-no}"
2954 echo "AVISynth enabled          ${avisynth-no}"
2955 echo "libdc1394 support         ${libdc1394-no}"
2956 echo "libdirac enabled          ${libdirac-no}"
2957 echo "libfaac enabled           ${libfaac-no}"
2958 echo "libgsm enabled            ${libgsm-no}"
2959 echo "libmp3lame enabled        ${libmp3lame-no}"
2960 echo "libnut enabled            ${libnut-no}"
2961 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2962 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2963 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2964 echo "librtmp enabled           ${librtmp-no}"
2965 echo "libschroedinger enabled   ${libschroedinger-no}"
2966 echo "libspeex enabled          ${libspeex-no}"
2967 echo "libtheora enabled         ${libtheora-no}"
2968 echo "libvorbis enabled         ${libvorbis-no}"
2969 echo "libvpx enabled            ${libvpx-no}"
2970 echo "libx264 enabled           ${libx264-no}"
2971 echo "libxavs enabled           ${libxavs-no}"
2972 echo "libxvid enabled           ${libxvid-no}"
2973 echo "zlib enabled              ${zlib-no}"
2974 echo "bzlib enabled             ${bzlib-no}"
2975 echo
2976
2977 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2978     echo "Enabled ${type}s:"
2979     eval list=\$$(toupper $type)_LIST
2980     print_enabled '_*' $list | sort | pr -3 -t
2981     echo
2982 done
2983
2984 license="LGPL version 2.1 or later"
2985 if enabled nonfree; then
2986     license="nonfree and unredistributable"
2987 elif enabled gplv3; then
2988     license="GPL version 3 or later"
2989 elif enabled lgplv3; then
2990     license="LGPL version 3 or later"
2991 elif enabled gpl; then
2992     license="GPL version 2 or later"
2993 fi
2994
2995 echo "License: $license"
2996
2997 echo "Creating config.mak and config.h..."
2998
2999 # build tree in object directory if source path is different from current one
3000 if enabled source_path_used; then
3001     DIRS="
3002         doc
3003         libavcodec
3004         libavcodec/$arch
3005         libavcore
3006         libavdevice
3007         libavfilter
3008         libavformat
3009         libavutil
3010         libavutil/$arch
3011         libpostproc
3012         libswscale
3013         libswscale/$arch
3014         tests
3015         tools
3016     "
3017     FILES="
3018         Makefile
3019         common.mak
3020         subdir.mak
3021         doc/texi2pod.pl
3022         libavcodec/Makefile
3023         libavcodec/${arch}/Makefile
3024         libavcore/Makefile
3025         libavdevice/Makefile
3026         libavfilter/Makefile
3027         libavformat/Makefile
3028         libavutil/Makefile
3029         libpostproc/Makefile
3030         libswscale/Makefile
3031     "
3032     map 'mkdir -p $v' $DIRS;
3033     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3034 fi
3035
3036 enabled stripping || strip="echo skipping strip"
3037
3038 cat > config.mak <<EOF
3039 # Automatically generated by configure - do not modify!
3040 ifndef FFMPEG_CONFIG_MAK
3041 FFMPEG_CONFIG_MAK=1
3042 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3043 prefix=$prefix
3044 LIBDIR=\$(DESTDIR)$libdir
3045 SHLIBDIR=\$(DESTDIR)$shlibdir
3046 INCDIR=\$(DESTDIR)$incdir
3047 BINDIR=\$(DESTDIR)$bindir
3048 DATADIR=\$(DESTDIR)$datadir
3049 MANDIR=\$(DESTDIR)$mandir
3050 SRC_PATH="$source_path"
3051 SRC_PATH_BARE=$source_path
3052 BUILD_ROOT="$PWD"
3053 CC_IDENT=$cc_ident
3054 ARCH=$arch
3055 CC=$cc
3056 AS=$as
3057 LD=$ld
3058 DEPCC=$dep_cc
3059 YASM=$yasmexe
3060 YASMDEP=$yasmexe
3061 AR=$ar
3062 RANLIB=$ranlib
3063 CP=cp -p
3064 LN_S=$ln_s
3065 STRIP=$strip
3066 CPPFLAGS=$CPPFLAGS
3067 CFLAGS=$CFLAGS
3068 ASFLAGS=$ASFLAGS
3069 CC_O=$CC_O
3070 LDFLAGS=$LDFLAGS
3071 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3072 SHFLAGS=$SHFLAGS
3073 YASMFLAGS=$YASMFLAGS
3074 BUILDSUF=$build_suffix
3075 FULLNAME=$FULLNAME
3076 LIBPREF=$LIBPREF
3077 LIBSUF=$LIBSUF
3078 LIBNAME=$LIBNAME
3079 SLIBPREF=$SLIBPREF
3080 SLIBSUF=$SLIBSUF
3081 EXESUF=$EXESUF
3082 EXTRA_VERSION=$extra_version
3083 DEPFLAGS=$DEPFLAGS
3084 CCDEP=$CCDEP
3085 ASDEP=$ASDEP
3086 CC_DEPFLAGS=$CC_DEPFLAGS
3087 AS_DEPFLAGS=$AS_DEPFLAGS
3088 HOSTCC=$host_cc
3089 HOSTCFLAGS=$host_cflags
3090 HOSTEXESUF=$HOSTEXESUF
3091 HOSTLDFLAGS=$host_ldflags
3092 HOSTLIBS=$host_libs
3093 TARGET_EXEC=$target_exec
3094 TARGET_PATH=$target_path
3095 SDL_LIBS=$sdl_libs
3096 SDL_CFLAGS=$sdl_cflags
3097 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3098 EXTRALIBS=$extralibs
3099 INSTALL=install
3100 LIBTARGET=${LIBTARGET}
3101 SLIBNAME=${SLIBNAME}
3102 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3103 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3104 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3105 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3106 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3107 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3108 SAMPLES=$samples
3109 EOF
3110
3111 get_version(){
3112     name=$1
3113     file=$source_path/$2
3114     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3115     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3116     lcname=$(tolower $name)
3117     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3118     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3119 }
3120
3121 get_version LIBSWSCALE  libswscale/swscale.h
3122 get_version LIBPOSTPROC libpostproc/postprocess.h
3123 get_version LIBAVCODEC  libavcodec/avcodec.h
3124 get_version LIBAVCORE   libavcore/avcore.h
3125 get_version LIBAVDEVICE libavdevice/avdevice.h
3126 get_version LIBAVFORMAT libavformat/avformat.h
3127 get_version LIBAVUTIL   libavutil/avutil.h
3128 get_version LIBAVFILTER libavfilter/avfilter.h
3129
3130 cat > $TMPH <<EOF
3131 /* Automatically generated by configure - do not modify! */
3132 #ifndef FFMPEG_CONFIG_H
3133 #define FFMPEG_CONFIG_H
3134 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3135 #define FFMPEG_LICENSE "$(c_escape $license)"
3136 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3137 #define CC_TYPE "$cc_type"
3138 #define CC_VERSION $cc_version
3139 #define restrict $_restrict
3140 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3141 #define EXTERN_PREFIX "${extern_prefix}"
3142 #define EXTERN_ASM ${extern_prefix}
3143 EOF
3144
3145 test -n "$malloc_prefix" &&
3146     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3147
3148 if enabled small || disabled optimizations; then
3149     echo "#undef  av_always_inline"  >> $TMPH
3150     echo "#define av_always_inline"  >> $TMPH
3151 fi
3152
3153 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3154 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3155 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3156                                       $CONFIG_EXTRA      \
3157                                       $DECODER_LIST      \
3158                                       $ENCODER_LIST      \
3159                                       $HWACCEL_LIST      \
3160                                       $PARSER_LIST       \
3161                                       $BSF_LIST          \
3162                                       $DEMUXER_LIST      \
3163                                       $MUXER_LIST        \
3164                                       $FILTER_LIST       \
3165                                       $PROTOCOL_LIST     \
3166                                       $INDEV_LIST        \
3167                                       $OUTDEV_LIST       \
3168
3169 cat >>config.mak <<EOF
3170 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3171 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3172 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3173 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3174 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3175 EOF
3176
3177 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3178 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3179
3180 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3181 cp_if_changed $TMPH config.h
3182 touch .config
3183
3184 cat > $TMPH <<EOF
3185 /* Generated by ffconf */
3186 #ifndef AVUTIL_AVCONFIG_H
3187 #define AVUTIL_AVCONFIG_H
3188 EOF
3189
3190 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3191
3192 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3193
3194 cp_if_changed $TMPH libavutil/avconfig.h
3195
3196 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
3197
3198 test -n "$WARNINGS" && printf "\n$WARNINGS"
3199
3200 # build pkg-config files
3201
3202 pkgconfig_generate(){
3203 name=$1
3204 shortname=${name#lib}${build_suffix}
3205 comment=$2
3206 version=$3
3207 libs=$4
3208 requires=$5
3209 enabled $shortname || return 0
3210 cat <<EOF > $name/$name.pc
3211 prefix=$prefix
3212 exec_prefix=\${prefix}
3213 libdir=$libdir
3214 includedir=$incdir
3215
3216 Name: $name
3217 Description: $comment
3218 Version: $version
3219 Requires: $(enabled shared || echo $requires)
3220 Requires.private: $(enabled shared && echo $requires)
3221 Conflicts:
3222 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3223 Libs.private: $(enabled shared && echo $libs)
3224 Cflags: -I\${includedir}
3225 EOF
3226 cat <<EOF > $name/$name-uninstalled.pc
3227 prefix=
3228 exec_prefix=
3229 libdir=\${pcfiledir}
3230 includedir=${source_path}
3231
3232 Name: $name
3233 Description: $comment
3234 Version: $version
3235 Requires: $requires
3236 Conflicts:
3237 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3238 Cflags: -I\${includedir}
3239 EOF
3240 }
3241
3242 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3243 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3244 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3245 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3246 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3247 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3248 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3249 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"