Detect llvm-gcc and set appropriate flags
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avcore         disable libavcore build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --enable-postproc        enable GPLed postprocessing support [no]
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --enable-w32threads      use Win32 threads [no]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101   --disable-fastdiv        disable table-based division
102   --enable-small           optimize for size instead of speed
103   --disable-aandct         disable AAN DCT code
104   --disable-dct            disable DCT code
105   --disable-fft            disable FFT code
106   --disable-golomb         disable Golomb code
107   --disable-huffman        disable Huffman code
108   --disable-lpc            disable LPC code
109   --disable-mdct           disable MDCT code
110   --disable-rdft           disable RDFT code
111   --disable-vaapi          disable VAAPI code
112   --disable-vdpau          disable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
117   --disable-everything     disable all components listed below
118   --disable-encoder=NAME   disable encoder NAME
119   --enable-encoder=NAME    enable encoder NAME
120   --disable-encoders       disable all encoders
121   --disable-decoder=NAME   disable decoder NAME
122   --enable-decoder=NAME    enable decoder NAME
123   --disable-decoders       disable all decoders
124   --disable-hwaccel=NAME   disable hwaccel NAME
125   --enable-hwaccel=NAME    enable hwaccel NAME
126   --disable-hwaccels       disable all hwaccels
127   --disable-muxer=NAME     disable muxer NAME
128   --enable-muxer=NAME      enable muxer NAME
129   --disable-muxers         disable all muxers
130   --disable-demuxer=NAME   disable demuxer NAME
131   --enable-demuxer=NAME    enable demuxer NAME
132   --disable-demuxers       disable all demuxers
133   --enable-parser=NAME     enable parser NAME
134   --disable-parser=NAME    disable parser NAME
135   --disable-parsers        disable all parsers
136   --enable-bsf=NAME        enable bitstream filter NAME
137   --disable-bsf=NAME       disable bitstream filter NAME
138   --disable-bsfs           disable all bitstream filters
139   --enable-protocol=NAME   enable protocol NAME
140   --disable-protocol=NAME  disable protocol NAME
141   --disable-protocols      disable all protocols
142   --disable-indev=NAME     disable input device NAME
143   --disable-outdev=NAME    disable output device NAME
144   --disable-indevs         disable input devices
145   --disable-outdevs        disable output devices
146   --disable-devices        disable all devices
147   --enable-filter=NAME     enable filter NAME
148   --disable-filter=NAME    disable filter NAME
149   --disable-filters        disable all filters
150   --list-decoders          show all available decoders
151   --list-encoders          show all available encoders
152   --list-hwaccels          show all available hardware accelerators
153   --list-muxers            show all available muxers
154   --list-demuxers          show all available demuxers
155   --list-parsers           show all available parsers
156   --list-protocols         show all available protocols
157   --list-bsfs              show all available bitstream filters
158   --list-indevs            show all available input devices
159   --list-outdevs           show all available output devices
160   --list-filters           show all available filters
161
162 External library support:
163   --enable-avisynth        enable reading of AVISynth script files [no]
164   --enable-bzlib           enable bzlib [autodetect]
165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
168                            and libraw1394 [no]
169   --enable-libdirac        enable Dirac support via libdirac [no]
170   --enable-libfaac         enable FAAC support via libfaac [no]
171   --enable-libgsm          enable GSM support via libgsm [no]
172   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
173   --enable-libnut          enable NUT (de)muxing via libnut,
174                            native (de)muxer exists [no]
175   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
176   --enable-librtmp         enable RTMP[E] support via librtmp [no]
177   --enable-libschroedinger enable Dirac support via libschroedinger [no]
178   --enable-libspeex        enable Speex decoding via libspeex [no]
179   --enable-libtheora       enable Theora encoding via libtheora [no]
180   --enable-libvorbis       enable Vorbis encoding via libvorbis,
181                            native implementation exists [no]
182   --enable-libvpx          enable VP8 support via libvpx [no]
183   --enable-libx264         enable H.264 encoding via x264 [no]
184   --enable-libxavs         enable AVS encoding via xavs [no]
185   --enable-libxvid         enable Xvid encoding via xvidcore,
186                            native MPEG-4/Xvid encoder exists [no]
187   --enable-mlib            enable Sun medialib [no]
188   --enable-zlib            enable zlib [autodetect]
189
190 Advanced options (experts only):
191   --source-path=PATH       path to source code [$source_path]
192   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
193   --enable-cross-compile   assume a cross-compiler is used
194   --sysroot=PATH           root of cross-build tree
195   --sysinclude=PATH        location of cross-build system headers
196   --target-os=OS           compiler targets OS [$target_os]
197   --target-exec=CMD        command to run executables on target
198   --target-path=DIR        path to view of build directory on target
199   --nm=NM                  use nm tool
200   --ar=AR                  use archive tool AR [$ar_default]
201   --as=AS                  use assembler AS [$as_default]
202   --cc=CC                  use C compiler CC [$cc_default]
203   --ld=LD                  use linker LD
204   --host-cc=HOSTCC         use host C compiler HOSTCC
205   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
206   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
207   --host-libs=HLIBS        use libs HLIBS when linking for host
208   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
209   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
210   --extra-libs=ELIBS       add ELIBS [$ELIBS]
211   --extra-version=STRING   version string suffix []
212   --build-suffix=SUFFIX    library name suffix []
213   --arch=ARCH              select architecture [$arch]
214   --cpu=CPU                select the minimum required CPU (affects
215                            instruction selection, may crash on older CPUs)
216   --disable-asm            disable all assembler optimizations
217   --disable-altivec        disable AltiVec optimizations
218   --disable-amd3dnow       disable 3DNow! optimizations
219   --disable-amd3dnowext    disable 3DNow! extended optimizations
220   --disable-mmx            disable MMX optimizations
221   --disable-mmx2           disable MMX2 optimizations
222   --disable-sse            disable SSE optimizations
223   --disable-ssse3          disable SSSE3 optimizations
224   --disable-armv5te        disable armv5te optimizations
225   --disable-armv6          disable armv6 optimizations
226   --disable-armv6t2        disable armv6t2 optimizations
227   --disable-armvfp         disable ARM VFP optimizations
228   --disable-iwmmxt         disable iwmmxt optimizations
229   --disable-mmi            disable MMI optimizations
230   --disable-neon           disable neon optimizations
231   --disable-vis            disable VIS optimizations
232   --disable-yasm           disable use of yasm assembler
233   --enable-pic             build position-independent code
234   --malloc-prefix=PFX      prefix malloc and related names with PFX
235   --enable-sram            allow use of on-chip SRAM
236
237 Developer options (useful when working on FFmpeg itself):
238   --disable-debug          disable debugging symbols
239   --enable-debug=LEVEL     set the debug level [$debuglevel]
240   --disable-optimizations  disable compiler optimizations
241   --enable-extra-warnings  enable more compiler warnings
242   --disable-stripping      disable stripping of executables and shared libraries
243   --samples=PATH           location of test samples for FATE
244
245 NOTE: Object files are built at the place where configure is launched.
246 EOF
247   exit 0
248 }
249
250 quotes='""'
251
252 log(){
253     echo "$@" >> $logfile
254 }
255
256 log_file(){
257     log BEGIN $1
258     pr -n -t $1 >> $logfile
259     log END $1
260 }
261
262 echolog(){
263     log "$@"
264     echo "$@"
265 }
266
267 warn(){
268     log "WARNING: $*"
269     WARNINGS="${WARNINGS}WARNING: $*\n"
270 }
271
272 die(){
273     echolog "$@"
274     cat <<EOF
275
276 If you think configure made a mistake, make sure you are using the latest
277 version from SVN.  If the latest version fails, report the problem to the
278 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
279 EOF
280     if disabled logging; then
281         cat <<EOF
282 Rerun configure with logging enabled (do not use --disable-logging), and
283 include the log this produces with your report.
284 EOF
285     else
286 cat <<EOF
287 Include the log file "$logfile" produced by configure as this will help
288 solving the problem.
289 EOF
290     fi
291     exit 1
292 }
293
294 # Avoid locale weirdness, besides we really just want to translate ASCII.
295 toupper(){
296     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
297 }
298
299 tolower(){
300     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
301 }
302
303 c_escape(){
304     echo "$*" | sed 's/["\\]/\\\0/g'
305 }
306
307 sh_quote(){
308     v=$(echo "$1" | sed "s/'/'\\\\''/g")
309     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
310     echo "$v"
311 }
312
313 filter(){
314     pat=$1
315     shift
316     for v; do
317         eval "case $v in $pat) echo $v ;; esac"
318     done
319 }
320
321 map(){
322     m=$1
323     shift
324     for v; do eval $m; done
325 }
326
327 set_all(){
328     value=$1
329     shift
330     for var in $*; do
331         eval $var=$value
332     done
333 }
334
335 set_weak(){
336     value=$1
337     shift
338     for var; do
339         eval : \${$var:=$value}
340     done
341 }
342
343 pushvar(){
344     for var in $*; do
345         eval level=\${${var}_level:=0}
346         eval ${var}_${level}="\$$var"
347         eval ${var}_level=$(($level+1))
348     done
349 }
350
351 popvar(){
352     for var in $*; do
353         eval level=\${${var}_level:-0}
354         test $level = 0 && continue
355         eval level=$(($level-1))
356         eval $var="\${${var}_${level}}"
357         eval ${var}_level=$level
358         eval unset ${var}_${level}
359     done
360 }
361
362 enable(){
363     set_all yes $*
364 }
365
366 disable(){
367     set_all no $*
368 }
369
370 enable_weak(){
371     set_weak yes $*
372 }
373
374 disable_weak(){
375     set_weak no $*
376 }
377
378 enable_safe(){
379     for var; do
380         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
381     done
382 }
383
384 disable_safe(){
385     for var; do
386         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
387     done
388 }
389
390 do_enable_deep(){
391     for var; do
392         enabled $var && continue
393         eval sel="\$${var}_select"
394         eval sgs="\$${var}_suggest"
395         pushvar var sgs
396         enable_deep $sel
397         popvar sgs
398         enable_deep_weak $sgs
399         popvar var
400     done
401 }
402
403 enable_deep(){
404     do_enable_deep $*
405     enable $*
406 }
407
408 enable_deep_weak(){
409     do_enable_deep $*
410     enable_weak $*
411 }
412
413 enabled(){
414     test "${1#!}" = "$1" && op== || op=!=
415     eval test "x\$${1#!}" $op "xyes"
416 }
417
418 disabled(){
419     test "${1#!}" = "$1" && op== || op=!=
420     eval test "x\$${1#!}" $op "xno"
421 }
422
423 enabled_all(){
424     for opt; do
425         enabled $opt || return 1
426     done
427 }
428
429 disabled_all(){
430     for opt; do
431         disabled $opt || return 1
432     done
433 }
434
435 enabled_any(){
436     for opt; do
437         enabled $opt && return 0
438     done
439 }
440
441 disabled_any(){
442     for opt; do
443         disabled $opt && return 0
444     done
445     return 1
446 }
447
448 set_default(){
449     for opt; do
450         eval : \${$opt:=\$${opt}_default}
451     done
452 }
453
454 is_in(){
455     value=$1
456     shift
457     for var in $*; do
458         [ $var = $value ] && return 0
459     done
460     return 1
461 }
462
463 check_deps(){
464     for cfg; do
465         cfg="${cfg#!}"
466         enabled ${cfg}_checking && die "Circular dependency for $cfg."
467         disabled ${cfg}_checking && continue
468         enable ${cfg}_checking
469
470         eval dep_all="\$${cfg}_deps"
471         eval dep_any="\$${cfg}_deps_any"
472         eval dep_sel="\$${cfg}_select"
473         eval dep_sgs="\$${cfg}_suggest"
474         eval dep_ifa="\$${cfg}_if"
475         eval dep_ifn="\$${cfg}_if_any"
476
477         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
478         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
479         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
480
481         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
482         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
483         enabled_all  $dep_all || disable $cfg
484         enabled_any  $dep_any || disable $cfg
485         disabled_any $dep_sel && disable $cfg
486
487         if enabled $cfg; then
488             eval dep_extralibs="\$${cfg}_extralibs"
489             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
490             enable_deep $dep_sel
491             enable_deep_weak $dep_sgs
492         fi
493
494         disable ${cfg}_checking
495     done
496 }
497
498 print_config(){
499     pfx=$1
500     header=$2
501     makefile=$3
502     shift 3
503     for cfg; do
504         ucname="$(toupper $cfg)"
505         if enabled $cfg; then
506             echo "#define ${pfx}${ucname} 1" >> $header
507             echo "${pfx}${ucname}=yes" >> $makefile
508         else
509             echo "#define ${pfx}${ucname} 0" >> $header
510             echo "!${pfx}${ucname}=yes" >> $makefile
511         fi
512     done
513 }
514
515 print_enabled(){
516     test "$1" = -n && end=" " && shift || end="\n"
517     suf=$1
518     shift
519     for v; do
520         enabled $v && printf "%s$end" ${v%$suf};
521     done
522 }
523
524 append(){
525     var=$1
526     shift
527     eval "$var=\"\$$var $*\""
528 }
529
530 prepend(){
531     var=$1
532     shift
533     eval "$var=\"$* \$$var\""
534 }
535
536 add_cppflags(){
537     append CPPFLAGS $($filter_cppflags "$@")
538 }
539
540 add_cflags(){
541     append CFLAGS $($filter_cflags "$@")
542 }
543
544 add_asflags(){
545     append ASFLAGS $($filter_asflags "$@")
546 }
547
548 add_ldflags(){
549     append LDFLAGS "$@"
550 }
551
552 add_extralibs(){
553     prepend extralibs "$@"
554 }
555
556 check_cmd(){
557     log "$@"
558     "$@" >> $logfile 2>&1
559 }
560
561 check_cc(){
562     log check_cc "$@"
563     cat > $TMPC
564     log_file $TMPC
565     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
566 }
567
568 check_cpp(){
569     log check_cpp "$@"
570     cat > $TMPC
571     log_file $TMPC
572     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
573 }
574
575 check_as(){
576     log check_as "$@"
577     cat > $TMPC
578     log_file $TMPC
579     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
580 }
581
582 check_asm(){
583     log check_asm "$@"
584     name="$1"
585     code="$2"
586     shift 2
587     disable $name
588     check_as "$@" <<EOF && enable $name
589 void foo(void){ __asm__ volatile($code); }
590 EOF
591 }
592
593 check_yasm(){
594     log check_yasm "$@"
595     echo "$1" > $TMPS
596     log_file $TMPS
597     shift 1
598     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
599 }
600
601 check_ld(){
602     log check_ld "$@"
603     flags=''
604     libs=''
605     for f; do
606         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
607     done
608     check_cc $($filter_cflags $flags) || return
609     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
610 }
611
612 check_cppflags(){
613     log check_cppflags "$@"
614     set -- $($filter_cppflags "$@")
615     check_cc "$@" <<EOF && append CPPFLAGS "$@"
616 int x;
617 EOF
618 }
619
620 check_cflags(){
621     log check_cflags "$@"
622     set -- $($filter_cflags "$@")
623     check_cc "$@" <<EOF && append CFLAGS "$@"
624 int x;
625 EOF
626 }
627
628 test_ldflags(){
629     log test_ldflags "$@"
630     check_ld "$@" <<EOF
631 int main(void){ return 0; }
632 EOF
633 }
634
635 check_ldflags(){
636     log check_ldflags "$@"
637     test_ldflags "$@" && add_ldflags "$@"
638 }
639
640 check_header(){
641     log check_header "$@"
642     header=$1
643     shift
644     disable_safe $header
645     check_cpp "$@" <<EOF && enable_safe $header
646 #include <$header>
647 int x;
648 EOF
649 }
650
651 check_func(){
652     log check_func "$@"
653     func=$1
654     shift
655     disable $func
656     check_ld "$@" <<EOF && enable $func
657 extern int $func();
658 int main(void){ $func(); }
659 EOF
660 }
661
662 check_mathfunc(){
663     log check_mathfunc "$@"
664     func=$1
665     shift
666     disable $func
667     check_ld "$@" <<EOF && enable $func
668 #include <math.h>
669 float foo(float f) { return $func(f); }
670 int main(void){ return 0; }
671 EOF
672 }
673
674 check_func_headers(){
675     log check_func_headers "$@"
676     headers=$1
677     func=$2
678     shift 2
679     disable $func
680     incs=""
681     for hdr in $headers; do
682         incs="$incs
683 #include <$hdr>"
684     done
685     check_ld "$@" <<EOF && enable $func && enable_safe $headers
686 $incs
687 int main(int argc, char **argv){
688     return (long) $func;
689 }
690 EOF
691 }
692
693 check_cpp_condition(){
694     log check_cpp_condition "$@"
695     header=$1
696     condition=$2
697     shift 2
698     check_cpp $($filter_cppflags "$@") <<EOF
699 #include <$header>
700 #if !($condition)
701 #error "unsatisfied condition: $condition"
702 #endif
703 EOF
704 }
705
706 check_lib(){
707     log check_lib "$@"
708     header="$1"
709     func="$2"
710     shift 2
711     check_header $header && check_func $func "$@" && add_extralibs "$@"
712 }
713
714 check_lib2(){
715     log check_lib2 "$@"
716     headers="$1"
717     func="$2"
718     shift 2
719     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
720 }
721
722 check_exec(){
723     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
724 }
725
726 check_exec_crash(){
727     code=$(cat)
728
729     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
730     # are safe but may not be available everywhere.  Thus we use
731     # raise(SIGTERM) instead.  The check is run in a subshell so we
732     # can redirect the "Terminated" message from the shell.  SIGBUS
733     # is not defined by standard C so it is used conditionally.
734
735     (check_exec "$@") >> $logfile 2>&1 <<EOF
736 #include <signal.h>
737 static void sighandler(int sig){
738     raise(SIGTERM);
739 }
740 int main(void){
741     signal(SIGILL, sighandler);
742     signal(SIGFPE, sighandler);
743     signal(SIGSEGV, sighandler);
744 #ifdef SIGBUS
745     signal(SIGBUS, sighandler);
746 #endif
747     { $code }
748 }
749 EOF
750 }
751
752 check_type(){
753     log check_type "$@"
754     headers=$1
755     type=$2
756     shift 2
757     disable_safe "$type"
758     incs=""
759     for hdr in $headers; do
760         incs="$incs
761 #include <$hdr>"
762     done
763     check_cc "$@" <<EOF && enable_safe "$type"
764 $incs
765 $type v;
766 EOF
767 }
768
769 check_struct(){
770     log check_type "$@"
771     headers=$1
772     struct=$2
773     member=$3
774     shift 3
775     disable_safe "${struct}_${member}"
776     incs=""
777     for hdr in $headers; do
778         incs="$incs
779 #include <$hdr>"
780     done
781     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
782 $incs
783 const void *p = &(($struct *)0)->$member;
784 EOF
785 }
786
787 require(){
788     name="$1"
789     header="$2"
790     func="$3"
791     shift 3
792     check_lib $header $func "$@" || die "ERROR: $name not found"
793 }
794
795 require2(){
796     name="$1"
797     headers="$2"
798     func="$3"
799     shift 3
800     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
801 }
802
803 check_host_cc(){
804     log check_host_cc "$@"
805     cat > $TMPC
806     log_file $TMPC
807     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
808 }
809
810 check_host_cflags(){
811     log check_host_cflags "$@"
812     check_host_cc "$@" <<EOF && append host_cflags "$@"
813 int x;
814 EOF
815 }
816
817 apply(){
818     file=$1
819     shift
820     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
821 }
822
823 cp_if_changed(){
824     cmp -s "$1" "$2" &&
825         echo "$2 is unchanged" ||
826         cp -f "$1" "$2"
827 }
828
829 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
830 # system-dependent things.
831
832 COMPONENT_LIST="
833     bsfs
834     decoders
835     demuxers
836     encoders
837     filters
838     hwaccels
839     indevs
840     muxers
841     outdevs
842     parsers
843     protocols
844 "
845
846 CONFIG_LIST="
847     $COMPONENT_LIST
848     aandct
849     avcodec
850     avcore
851     avdevice
852     avfilter
853     avformat
854     avisynth
855     bzlib
856     dct
857     doc
858     dwt
859     dxva2
860     fastdiv
861     ffmpeg
862     ffplay
863     ffprobe
864     ffserver
865     fft
866     golomb
867     gpl
868     gray
869     h264dsp
870     h264pred
871     hardcoded_tables
872     huffman
873     libdc1394
874     libdirac
875     libfaac
876     libgsm
877     libmp3lame
878     libnut
879     libopencore_amrnb
880     libopencore_amrwb
881     libopenjpeg
882     librtmp
883     libschroedinger
884     libspeex
885     libtheora
886     libvorbis
887     libvpx
888     libx264
889     libxavs
890     libxvid
891     lpc
892     lsp
893     mdct
894     memalign_hack
895     mlib
896     mpegaudio_hp
897     network
898     nonfree
899     pic
900     postproc
901     rdft
902     runtime_cpudetect
903     shared
904     small
905     sram
906     static
907     swscale
908     swscale_alpha
909     vaapi
910     vdpau
911     version3
912     x11grab
913     zlib
914 "
915
916 THREADS_LIST='
917     pthreads
918     w32threads
919 '
920
921 ARCH_LIST='
922     alpha
923     arm
924     avr32
925     avr32_ap
926     avr32_uc
927     bfin
928     ia64
929     m68k
930     mips
931     mips64
932     parisc
933     ppc
934     ppc64
935     s390
936     sh4
937     sparc
938     sparc64
939     tomi
940     x86
941     x86_32
942     x86_64
943 '
944
945 ARCH_EXT_LIST='
946     altivec
947     amd3dnow
948     amd3dnowext
949     armv5te
950     armv6
951     armv6t2
952     armvfp
953     iwmmxt
954     mmi
955     mmx
956     mmx2
957     neon
958     ppc4xx
959     sse
960     ssse3
961     vis
962 '
963
964 HAVE_LIST_PUB='
965     bigendian
966     fast_unaligned
967 '
968
969 HAVE_LIST="
970     $ARCH_EXT_LIST
971     $HAVE_LIST_PUB
972     $THREADS_LIST
973     alsa_asoundlib_h
974     altivec_h
975     arpa_inet_h
976     attribute_may_alias
977     attribute_packed
978     bswap
979     closesocket
980     cmov
981     conio_h
982     dcbzl
983     dev_bktr_ioctl_bt848_h
984     dev_bktr_ioctl_meteor_h
985     dev_ic_bt8xx_h
986     dev_video_meteor_ioctl_meteor_h
987     dev_video_bktr_ioctl_bt848_h
988     dlfcn_h
989     dlopen
990     dos_paths
991     ebp_available
992     ebx_available
993     exp2
994     exp2f
995     fast_64bit
996     fast_clz
997     fast_cmov
998     fcntl
999     fork
1000     getaddrinfo
1001     gethrtime
1002     GetProcessMemoryInfo
1003     GetProcessTimes
1004     getrusage
1005     gnu_as
1006     struct_rusage_ru_maxrss
1007     ibm_asm
1008     inet_aton
1009     inline_asm
1010     isatty
1011     ldbrx
1012     libdc1394_1
1013     libdc1394_2
1014     llrint
1015     llrintf
1016     local_aligned_16
1017     local_aligned_8
1018     log2
1019     log2f
1020     loongson
1021     lrint
1022     lrintf
1023     lzo1x_999_compress
1024     machine_ioctl_bt848_h
1025     machine_ioctl_meteor_h
1026     malloc_h
1027     memalign
1028     mkstemp
1029     pld
1030     posix_memalign
1031     round
1032     roundf
1033     sdl
1034     sdl_video_size
1035     setmode
1036     socklen_t
1037     soundcard_h
1038     poll_h
1039     setrlimit
1040     strerror_r
1041     struct_addrinfo
1042     struct_ipv6_mreq
1043     struct_sockaddr_in6
1044     struct_sockaddr_sa_len
1045     struct_sockaddr_storage
1046     symver
1047     symver_gnu_asm
1048     symver_asm_label
1049     sys_mman_h
1050     sys_resource_h
1051     sys_select_h
1052     sys_soundcard_h
1053     sys_videoio_h
1054     ten_operands
1055     termios_h
1056     threads
1057     truncf
1058     vfp_args
1059     VirtualAlloc
1060     winsock2_h
1061     xform_asm
1062     yasm
1063 "
1064
1065 # options emitted with CONFIG_ prefix but not available on command line
1066 CONFIG_EXTRA="
1067     avutil
1068     gplv3
1069     lgplv3
1070 "
1071
1072 CMDLINE_SELECT="
1073     $ARCH_EXT_LIST
1074     $CONFIG_LIST
1075     $THREADS_LIST
1076     asm
1077     cross_compile
1078     debug
1079     extra_warnings
1080     logging
1081     optimizations
1082     stripping
1083     yasm
1084 "
1085
1086 PATHS_LIST='
1087     bindir
1088     datadir
1089     incdir
1090     libdir
1091     mandir
1092     prefix
1093     shlibdir
1094 '
1095
1096 CMDLINE_SET="
1097     $PATHS_LIST
1098     ar
1099     arch
1100     as
1101     build_suffix
1102     cc
1103     cpu
1104     cross_prefix
1105     dep_cc
1106     extra_version
1107     host_cc
1108     host_cflags
1109     host_ldflags
1110     host_libs
1111     host_os
1112     ld
1113     logfile
1114     malloc_prefix
1115     nm
1116     samples
1117     source_path
1118     strip
1119     sysinclude
1120     sysroot
1121     target_exec
1122     target_os
1123     target_path
1124 "
1125
1126 CMDLINE_APPEND="
1127     extra_cflags
1128 "
1129
1130 # code dependency declarations
1131
1132 # architecture extensions
1133
1134 armv5te_deps="arm"
1135 armv6_deps="arm"
1136 armv6t2_deps="arm"
1137 armvfp_deps="arm"
1138 iwmmxt_deps="arm"
1139 neon_deps="arm"
1140
1141 mmi_deps="mips"
1142
1143 altivec_deps="ppc"
1144 ppc4xx_deps="ppc"
1145
1146 vis_deps="sparc"
1147
1148 x86_64_suggest="cmov fast_cmov"
1149 amd3dnow_deps="mmx"
1150 amd3dnowext_deps="amd3dnow"
1151 mmx_deps="x86"
1152 mmx2_deps="mmx"
1153 sse_deps="mmx"
1154 ssse3_deps="sse"
1155
1156 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1157 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1158 fast_unaligned_if_any="armv6 ppc x86"
1159
1160 need_memalign="altivec neon sse"
1161 inline_asm_deps="!tms470"
1162
1163 symver_if_any="symver_asm_label symver_gnu_asm"
1164
1165 # subsystems
1166 dct_select="rdft"
1167 mdct_select="fft"
1168 rdft_select="fft"
1169
1170 # decoders / encoders / hardware accelerators
1171 aac_decoder_select="mdct rdft"
1172 aac_encoder_select="mdct"
1173 ac3_decoder_select="mdct ac3_parser"
1174 alac_encoder_select="lpc"
1175 amrnb_decoder_select="lsp"
1176 atrac1_decoder_select="mdct"
1177 atrac3_decoder_select="mdct"
1178 binkaudio_dct_decoder_select="mdct rdft dct"
1179 binkaudio_rdft_decoder_select="mdct rdft"
1180 cavs_decoder_select="golomb"
1181 cook_decoder_select="mdct"
1182 cscd_decoder_suggest="zlib"
1183 dca_decoder_select="mdct"
1184 dnxhd_encoder_select="aandct"
1185 dxa_decoder_select="zlib"
1186 eac3_decoder_select="ac3_decoder"
1187 eamad_decoder_select="aandct"
1188 eatgq_decoder_select="aandct"
1189 eatqi_decoder_select="aandct"
1190 ffv1_decoder_select="golomb"
1191 flac_decoder_select="golomb"
1192 flac_encoder_select="golomb lpc"
1193 flashsv_decoder_select="zlib"
1194 flashsv_encoder_select="zlib"
1195 flv_decoder_select="h263_decoder"
1196 flv_encoder_select="h263_encoder"
1197 fraps_decoder_select="huffman"
1198 h261_encoder_select="aandct"
1199 h263_decoder_select="h263_parser"
1200 h263_encoder_select="aandct"
1201 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1202 h263i_decoder_select="h263_decoder"
1203 h263p_encoder_select="h263_encoder"
1204 h264_decoder_select="golomb h264dsp h264pred"
1205 h264_dxva2_hwaccel_deps="dxva2api_h"
1206 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1207 h264_vaapi_hwaccel_select="vaapi"
1208 h264_vdpau_decoder_select="vdpau h264_decoder"
1209 imc_decoder_select="fft mdct"
1210 jpegls_decoder_select="golomb"
1211 jpegls_encoder_select="golomb"
1212 ljpeg_encoder_select="aandct"
1213 loco_decoder_select="golomb"
1214 mjpeg_encoder_select="aandct"
1215 mlp_decoder_select="mlp_parser"
1216 mp1float_decoder_select="dct"
1217 mp2float_decoder_select="dct"
1218 mp3adufloat_decoder_select="dct"
1219 mp3float_decoder_select="dct"
1220 mp3on4float_decoder_select="dct"
1221 mpeg1video_encoder_select="aandct"
1222 mpeg2video_encoder_select="aandct"
1223 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1224 mpeg4_encoder_select="h263_encoder"
1225 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1226 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1227 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1228 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1229 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1230 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1231 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1232 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1233 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1234 msmpeg4v1_decoder_select="h263_decoder"
1235 msmpeg4v1_encoder_select="h263_encoder"
1236 msmpeg4v2_decoder_select="h263_decoder"
1237 msmpeg4v2_encoder_select="h263_encoder"
1238 msmpeg4v3_decoder_select="h263_decoder"
1239 msmpeg4v3_encoder_select="h263_encoder"
1240 nellymoser_decoder_select="mdct"
1241 nellymoser_encoder_select="mdct"
1242 png_decoder_select="zlib"
1243 png_encoder_select="zlib"
1244 qcelp_decoder_select="lsp"
1245 qdm2_decoder_select="mdct rdft"
1246 ra_144_encoder_select="lpc"
1247 rv10_decoder_select="h263_decoder"
1248 rv10_encoder_select="h263_encoder"
1249 rv20_decoder_select="h263_decoder"
1250 rv20_encoder_select="h263_encoder"
1251 rv30_decoder_select="golomb h264pred"
1252 rv40_decoder_select="golomb h264pred"
1253 shorten_decoder_select="golomb"
1254 sipr_decoder_select="lsp"
1255 snow_decoder_select="dwt"
1256 snow_encoder_select="aandct dwt"
1257 sonic_decoder_select="golomb"
1258 sonic_encoder_select="golomb"
1259 sonic_ls_encoder_select="golomb"
1260 svq1_encoder_select="aandct"
1261 svq3_decoder_select="golomb h264dsp h264pred"
1262 svq3_decoder_suggest="zlib"
1263 theora_decoder_select="vp3_decoder"
1264 tiff_decoder_suggest="zlib"
1265 tiff_encoder_suggest="zlib"
1266 truehd_decoder_select="mlp_decoder"
1267 tscc_decoder_select="zlib"
1268 twinvq_decoder_select="mdct lsp"
1269 vc1_decoder_select="h263_decoder"
1270 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1271 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1272 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1273 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1274 vorbis_decoder_select="mdct"
1275 vorbis_encoder_select="mdct"
1276 vp6_decoder_select="huffman"
1277 vp6a_decoder_select="vp6_decoder"
1278 vp6f_decoder_select="vp6_decoder"
1279 vp8_decoder_select="h264pred"
1280 wmapro_decoder_select="mdct"
1281 wmav1_decoder_select="mdct"
1282 wmav1_encoder_select="mdct"
1283 wmav2_decoder_select="mdct"
1284 wmav2_encoder_select="mdct"
1285 wmavoice_decoder_select="lsp rdft dct mdct"
1286 wmv1_decoder_select="h263_decoder"
1287 wmv1_encoder_select="h263_encoder"
1288 wmv2_decoder_select="h263_decoder"
1289 wmv2_encoder_select="h263_encoder"
1290 wmv3_decoder_select="vc1_decoder"
1291 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1292 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1293 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1294 zlib_decoder_select="zlib"
1295 zlib_encoder_select="zlib"
1296 zmbv_decoder_select="zlib"
1297 zmbv_encoder_select="zlib"
1298
1299 vaapi_deps="va_va_h"
1300 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1301
1302 # parsers
1303 h264_parser_select="golomb h264dsp h264pred"
1304
1305 # external libraries
1306 libdirac_decoder_deps="libdirac !libschroedinger"
1307 libdirac_encoder_deps="libdirac"
1308 libfaac_encoder_deps="libfaac"
1309 libgsm_decoder_deps="libgsm"
1310 libgsm_encoder_deps="libgsm"
1311 libgsm_ms_decoder_deps="libgsm"
1312 libgsm_ms_encoder_deps="libgsm"
1313 libmp3lame_encoder_deps="libmp3lame"
1314 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1315 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1316 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1317 libopenjpeg_decoder_deps="libopenjpeg"
1318 libschroedinger_decoder_deps="libschroedinger"
1319 libschroedinger_encoder_deps="libschroedinger"
1320 libspeex_decoder_deps="libspeex"
1321 libtheora_encoder_deps="libtheora"
1322 libvorbis_encoder_deps="libvorbis"
1323 libvpx_decoder_deps="libvpx"
1324 libvpx_encoder_deps="libvpx"
1325 libx264_encoder_deps="libx264"
1326 libxavs_encoder_deps="libxavs"
1327 libxvid_encoder_deps="libxvid"
1328
1329 # demuxers / muxers
1330 ac3_demuxer_deps="ac3_parser"
1331 asf_stream_muxer_select="asf_muxer"
1332 avisynth_demuxer_deps="avisynth"
1333 dirac_demuxer_deps="dirac_parser"
1334 eac3_demuxer_select="ac3_parser"
1335 ipod_muxer_select="mov_muxer"
1336 libnut_demuxer_deps="libnut"
1337 libnut_muxer_deps="libnut"
1338 matroska_audio_muxer_select="matroska_muxer"
1339 matroska_demuxer_suggest="zlib bzlib"
1340 mov_demuxer_suggest="zlib"
1341 mp3_demuxer_deps="mpegaudio_parser"
1342 mp4_muxer_select="mov_muxer"
1343 mpegtsraw_demuxer_select="mpegts_demuxer"
1344 mxf_d10_muxer_select="mxf_muxer"
1345 ogg_demuxer_select="golomb"
1346 psp_muxer_select="mov_muxer"
1347 rtsp_demuxer_deps="sdp_demuxer"
1348 rtsp_muxer_deps="sdp_demuxer"
1349 rtsp_muxer_select="rtp_muxer"
1350 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1351 sdp_demuxer_select="asf_demuxer rm_demuxer"
1352 spdif_muxer_select="aac_parser"
1353 tg2_muxer_select="mov_muxer"
1354 tgp_muxer_select="mov_muxer"
1355 w64_demuxer_deps="wav_demuxer"
1356
1357 # indevs / outdevs
1358 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1359 alsa_outdev_deps="alsa_asoundlib_h"
1360 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1361 dv1394_indev_deps="dv1394 dv_demuxer"
1362 jack_indev_deps="jack_jack_h"
1363 libdc1394_indev_deps="libdc1394"
1364 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1365 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1366 v4l_indev_deps="linux_videodev_h"
1367 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1368 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1369 vfwcap_indev_extralibs="-lavicap32"
1370 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1371 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1372
1373 # protocols
1374 gopher_protocol_deps="network"
1375 http_protocol_deps="network"
1376 http_protocol_select="tcp_protocol"
1377 mmsh_protocol_select="http_protocol"
1378 mmst_protocol_deps="network"
1379 rtmp_protocol_select="tcp_protocol"
1380 rtp_protocol_select="udp_protocol"
1381 tcp_protocol_deps="network"
1382 udp_protocol_deps="network"
1383
1384 # libraries
1385 avdevice_deps="avcodec avformat"
1386 avformat_deps="avcodec"
1387
1388 # programs
1389 ffmpeg_deps="avcodec avformat swscale"
1390 ffmpeg_select="buffer_filter"
1391 ffplay_deps="avcodec avformat swscale sdl"
1392 ffplay_select="rdft"
1393 ffprobe_deps="avcodec avformat"
1394 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1395 ffserver_extralibs='$ldl'
1396
1397 doc_deps="texi2html"
1398
1399 # tests
1400
1401 test_deps(){
1402     suf1=$1
1403     suf2=$2
1404     shift 2
1405     for v; do
1406         dep=${v%=*}
1407         tests=${v#*=}
1408         for name in ${tests}; do
1409             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1410         done
1411     done
1412 }
1413
1414 set_ne_test_deps(){
1415     eval ${1}_be_test_deps="bigendian"
1416     eval ${1}_le_test_deps="!bigendian"
1417 }
1418
1419 test_deps _encoder _decoder                                             \
1420     ac3                                                                 \
1421     adpcm_g726=g726                                                     \
1422     adpcm_ima_qt                                                        \
1423     adpcm_ima_wav                                                       \
1424     adpcm_ms                                                            \
1425     adpcm_swf                                                           \
1426     adpcm_yamaha=adpcm_yam                                              \
1427     alac                                                                \
1428     asv1                                                                \
1429     asv2                                                                \
1430     bmp                                                                 \
1431     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1432     dvvideo="dv dv50"                                                   \
1433     ffv1                                                                \
1434     flac                                                                \
1435     flashsv                                                             \
1436     flv                                                                 \
1437     gif                                                                 \
1438     h261                                                                \
1439     h263="h263 h263p"                                                   \
1440     huffyuv                                                             \
1441     jpegls                                                              \
1442     mjpeg="jpg mjpeg ljpeg"                                             \
1443     mp2                                                                 \
1444     mpeg1video="mpeg mpeg1b"                                            \
1445     mpeg2video="mpeg2 mpeg2thread"                                      \
1446     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1447     msmpeg4v3=msmpeg4                                                   \
1448     msmpeg4v2                                                           \
1449     pbm=pbmpipe                                                         \
1450     pcx                                                                 \
1451     pgm="pgm pgmpipe"                                                   \
1452     ppm="ppm ppmpipe"                                                   \
1453     rawvideo="rgb yuv"                                                  \
1454     roq                                                                 \
1455     rv10                                                                \
1456     rv20                                                                \
1457     sgi                                                                 \
1458     snow="snow snowll"                                                  \
1459     svq1                                                                \
1460     targa=tga                                                           \
1461     tiff                                                                \
1462     wmav1                                                               \
1463     wmav2                                                               \
1464     wmv1                                                                \
1465     wmv2                                                                \
1466
1467 test_deps _muxer _demuxer                                               \
1468     aiff                                                                \
1469     pcm_alaw=alaw                                                       \
1470     asf                                                                 \
1471     au                                                                  \
1472     avi                                                                 \
1473     dv=dv_fmt                                                           \
1474     ffm                                                                 \
1475     flv=flv_fmt                                                         \
1476     gxf                                                                 \
1477     matroska=mkv                                                        \
1478     mmf                                                                 \
1479     mov                                                                 \
1480     pcm_mulaw=mulaw                                                     \
1481     mxf                                                                 \
1482     nut                                                                 \
1483     ogg                                                                 \
1484     rawvideo=pixfmt                                                     \
1485     rm                                                                  \
1486     swf                                                                 \
1487     mpegts=ts                                                           \
1488     voc                                                                 \
1489     wav                                                                 \
1490     yuv4mpegpipe=yuv4mpeg                                               \
1491
1492 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1493
1494 set_ne_test_deps pixdesc
1495 set_ne_test_deps pixfmts_crop
1496 set_ne_test_deps pixfmts_hflip
1497 set_ne_test_deps pixfmts_null
1498 set_ne_test_deps pixfmts_pad
1499 set_ne_test_deps pixfmts_scale
1500 set_ne_test_deps pixfmts_vflip
1501
1502 # default parameters
1503
1504 logfile="config.log"
1505
1506 # installation paths
1507 prefix_default="/usr/local"
1508 bindir_default='${prefix}/bin'
1509 datadir_default='${prefix}/share/ffmpeg'
1510 incdir_default='${prefix}/include'
1511 libdir_default='${prefix}/lib'
1512 mandir_default='${prefix}/share/man'
1513 shlibdir_default="$libdir_default"
1514
1515 # toolchain
1516 ar_default="ar"
1517 cc_default="gcc"
1518 cc_version=\"unknown\"
1519 host_cc_default="gcc"
1520 ln_s="ln -sf"
1521 nm_default="nm"
1522 objformat="elf"
1523 ranlib="ranlib"
1524 strip_default="strip"
1525 yasmexe="yasm"
1526 nogas=":"
1527
1528 nm_opts='-g'
1529
1530 # machine
1531 arch_default=$(uname -m)
1532 cpu="generic"
1533
1534 # OS
1535 target_os_default=$(tolower $(uname -s))
1536 host_os=$target_os_default
1537
1538 # configurable options
1539 enable avcodec
1540 enable avcore
1541 enable avdevice
1542 enable avfilter
1543 enable avformat
1544 enable avutil
1545 enable asm
1546 enable debug
1547 enable doc
1548 enable fastdiv
1549 enable ffmpeg
1550 enable ffplay
1551 enable ffprobe
1552 enable ffserver
1553 enable mpegaudio_hp
1554 enable network
1555 enable optimizations
1556 enable protocols
1557 enable static
1558 enable stripping
1559 enable swscale
1560 enable swscale_alpha
1561
1562 # build settings
1563 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1564 FFSERVERLDFLAGS=-Wl,-E
1565 LIBPREF="lib"
1566 LIBSUF=".a"
1567 FULLNAME='$(NAME)$(BUILDSUF)'
1568 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1569 SLIBPREF="lib"
1570 SLIBSUF=".so"
1571 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1572 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1573 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1574 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1575
1576 CC_O='-o $@'
1577
1578 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1579 host_libs='-lm'
1580
1581 target_path='$(CURDIR)'
1582
1583 # since the object filename is not given with the -MM flag, the compiler
1584 # is only able to print the basename, and we must add the path ourselves
1585 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1586 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1587
1588 # find source path
1589 source_path="$(dirname "$0")"
1590 enable source_path_used
1591 if test -f configure; then
1592     source_path="$(pwd)"
1593     disable source_path_used
1594 else
1595     source_path="$(cd "$source_path"; pwd)"
1596     echo "$source_path" | grep -q '[[:blank:]]' &&
1597         die "Out of tree builds are impossible with whitespace in source path."
1598     test -e "$source_path/config.h" &&
1599         die "Out of tree builds are impossible with config.h in source dir."
1600 fi
1601
1602 for v in "$@"; do
1603     r=${v#*=}
1604     l=${v%"$r"}
1605     r=$(sh_quote "$r")
1606     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1607 done
1608
1609 find_things(){
1610     thing=$1
1611     pattern=$2
1612     file=$source_path/$3
1613     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1614 }
1615
1616 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1617 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1618 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1619 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1620 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1621 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1622 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1623 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1624 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1625 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1626 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1627
1628 find_tests(){
1629     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1630 }
1631
1632 ACODEC_TESTS=$(find_tests acodec)
1633 VCODEC_TESTS=$(find_tests vsynth1)
1634 LAVF_TESTS=$(find_tests lavf)
1635 LAVFI_TESTS=$(find_tests lavfi)
1636 SEEK_TESTS=$(find_tests seek seek_)
1637
1638 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1639
1640 for n in $COMPONENT_LIST; do
1641     v=$(toupper ${n%s})_LIST
1642     eval enable \$$v
1643     eval ${n}_if_any="\$$v"
1644 done
1645
1646 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1647
1648 die_unknown(){
1649     echo "Unknown option \"$1\"."
1650     echo "See $0 --help for available options."
1651     exit 1
1652 }
1653
1654 show_list() {
1655     suffix=_$1
1656     shift
1657     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1658     exit 0
1659 }
1660
1661 for opt do
1662     optval="${opt#*=}"
1663     case "$opt" in
1664     --extra-ldflags=*) add_ldflags $optval
1665     ;;
1666     --extra-libs=*) add_extralibs $optval
1667     ;;
1668     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1669     ;;
1670     --enable-debug=*) debuglevel="$optval"
1671     ;;
1672     --disable-everything)
1673     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1674     ;;
1675     --enable-*=*|--disable-*=*)
1676     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1677     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1678     eval list=\$$(toupper $thing)_LIST
1679     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1680     $action $(filter "$name" $list)
1681     ;;
1682     --enable-?*|--disable-?*)
1683     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1684     if is_in $option $COMPONENT_LIST; then
1685         test $action = disable && action=unset
1686         eval $action \$$(toupper ${option%s})_LIST
1687     elif is_in $option $CMDLINE_SELECT; then
1688         $action $option
1689     else
1690         die_unknown $opt
1691     fi
1692     ;;
1693     --list-*)
1694         NAME="${opt#--list-}"
1695         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1696         NAME=${NAME%s}
1697         eval show_list $NAME \$$(toupper $NAME)_LIST
1698     ;;
1699     --help|-h) show_help
1700     ;;
1701     *)
1702     optname="${opt%%=*}"
1703     optname="${optname#--}"
1704     optname=$(echo "$optname" | sed 's/-/_/g')
1705     if is_in $optname $CMDLINE_SET; then
1706         eval $optname='$optval'
1707     elif is_in $optname $CMDLINE_APPEND; then
1708         append $optname "$optval"
1709     else
1710          die_unknown $opt
1711     fi
1712     ;;
1713     esac
1714 done
1715
1716 disabled logging && logfile=/dev/null
1717
1718 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1719 set >> $logfile
1720
1721 test -n "$cross_prefix" && enable cross_compile
1722
1723 if enabled cross_compile; then
1724     test -n "$arch" && test -n "$target_os" ||
1725         die "Must specify target arch and OS when cross-compiling"
1726 fi
1727
1728 set_default arch target_os
1729
1730 ar_default="${cross_prefix}${ar_default}"
1731 cc_default="${cross_prefix}${cc_default}"
1732 nm_default="${cross_prefix}${nm_default}"
1733 ranlib="${cross_prefix}${ranlib}"
1734 strip_default="${cross_prefix}${strip_default}"
1735
1736 sysinclude_default="${sysroot}/usr/include"
1737
1738 set_default cc nm strip sysinclude
1739 enabled cross_compile || host_cc_default=$cc
1740 set_default host_cc
1741
1742 exesuf() {
1743     case $1 in
1744         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1745     esac
1746 }
1747
1748 EXESUF=$(exesuf $target_os)
1749 HOSTEXESUF=$(exesuf $host_os)
1750
1751 # set temporary file name
1752 : ${TMPDIR:=$TEMPDIR}
1753 : ${TMPDIR:=$TMP}
1754 : ${TMPDIR:=/tmp}
1755
1756 if ! check_cmd type mktemp; then
1757     # simple replacement for missing mktemp
1758     # NOT SAFE FOR GENERAL USE
1759     mktemp(){
1760         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1761     }
1762 fi
1763
1764 tmpfile(){
1765     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1766         (set -C; exec > $tmp) 2>/dev/null ||
1767         die "Unable to create temporary file in $TMPDIR."
1768     append TMPFILES $tmp
1769     eval $1=$tmp
1770 }
1771
1772 trap 'rm -f -- $TMPFILES' EXIT
1773 trap exit HUP INT TERM
1774
1775 tmpfile TMPC  .c
1776 tmpfile TMPE  $EXESUF
1777 tmpfile TMPH  .h
1778 tmpfile TMPO  .o
1779 tmpfile TMPS  .S
1780 tmpfile TMPV  .ver
1781 tmpfile TMPSH .sh
1782
1783 unset -f mktemp
1784
1785 # make sure we can execute files in $TMPDIR
1786 cat > $TMPSH 2>> $logfile <<EOF
1787 #! /bin/sh
1788 EOF
1789 chmod +x $TMPSH >> $logfile 2>&1
1790 if ! $TMPSH >> $logfile 2>&1; then
1791     cat <<EOF
1792 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1793 variable to another directory and make sure that it is not mounted noexec.
1794 EOF
1795     die "Sanity test failed."
1796 fi
1797
1798 filter_cflags=echo
1799 filter_cppflags=echo
1800 filter_asflags=echo
1801
1802 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1803     cc_type=llvm_gcc
1804     cc_version=__VERSION__
1805     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1806     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1807     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1808     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1809     speed_cflags='-O3'
1810     size_cflags='-Os'
1811 elif $cc -v 2>&1 | grep -qi ^gcc; then
1812     cc_type=gcc
1813     cc_version=__VERSION__
1814     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1815     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1816     if ! $cc -dumpversion | grep -q '^2\.'; then
1817         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1818         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1819     fi
1820     speed_cflags='-O3'
1821     size_cflags='-Os'
1822 elif $cc --version 2>/dev/null | grep -q Intel; then
1823     cc_type=icc
1824     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1825     cc_ident=$($cc --version | head -n1)
1826     CC_DEPFLAGS='-MMD'
1827     AS_DEPFLAGS='-MMD'
1828     speed_cflags='-O3'
1829     size_cflags='-Os'
1830     noopt_cflags='-O1'
1831 elif $cc -v 2>&1 | grep -q xlc; then
1832     cc_type=xlc
1833     cc_version="AV_STRINGIFY(__IBMC__)"
1834     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1835     speed_cflags='-O5'
1836     size_cflags='-O5 -qcompact'
1837 elif $cc -V 2>/dev/null | grep -q Compaq; then
1838     cc_type=ccc
1839     cc_version="AV_STRINGIFY(__DECC_VER)"
1840     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1841     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1842     debuglevel=3
1843     add_ldflags -Wl,-z,now # calls to libots crash without this
1844     speed_cflags='-fast'
1845     size_cflags='-O1'
1846 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1847     test -d "$sysroot" || die "No valid sysroot specified."
1848     cc_type=armcc
1849     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1850     cc_ident=$($cc --vsn | head -n1)
1851     armcc_conf="$PWD/armcc.conf"
1852     $cc --arm_linux_configure                 \
1853         --arm_linux_config_file="$armcc_conf" \
1854         --configure_sysroot="$sysroot"        \
1855         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1856         die "Error creating armcc configuration file."
1857     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1858     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1859     as_default="${cross_prefix}gcc"
1860     CC_DEPFLAGS='-MMD'
1861     AS_DEPFLAGS='-MMD'
1862     speed_cflags='-O3'
1863     size_cflags='-Os'
1864 elif $cc -version 2>/dev/null | grep -q TMS470; then
1865     cc_type=tms470
1866     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1867     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1868     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1869     CC_O='-fr=$(@D)'
1870     as_default="${cross_prefix}gcc"
1871     ld_default="${cross_prefix}gcc"
1872     TMPO=$(basename $TMPC .c).o
1873     append TMPFILES $TMPO
1874     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1875     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1876     AS_DEPFLAGS='-MMD'
1877     speed_cflags='-O3 -mf=5'
1878     size_cflags='-O3 -mf=2'
1879     filter_cflags=tms470_flags
1880     tms470_flags(){
1881         for flag; do
1882             case $flag in
1883                 -march=*|-mcpu=*)
1884                     case "${flag#*=}" in
1885                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1886                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1887                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1888                         armv6*|arm11*)          echo -mv=6   ;;
1889                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1890                                                 echo -mv=5e  ;;
1891                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1892                     esac
1893                     ;;
1894                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1895                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1896                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1897                 -msoft-float)   echo --float_support=vfplib       ;;
1898                 -O[0-3]|-mf=*)  echo $flag                        ;;
1899                 -g)             echo -g -mn                       ;;
1900                 -pds=*)         echo $flag                        ;;
1901             esac
1902         done
1903     }
1904 elif $cc -v 2>&1 | grep -q clang; then
1905     cc_type=clang
1906     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1907         cc_version=__clang_version__ || cc_version=__VERSION__
1908     cc_ident=$($cc --version | head -n1)
1909     CC_DEPFLAGS='-MMD'
1910     AS_DEPFLAGS='-MMD'
1911     speed_cflags='-O3'
1912     size_cflags='-Os'
1913 elif $cc -V 2>&1 | grep -q Sun; then
1914     cc_type=suncc
1915     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1916     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1917     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1918     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1919     speed_cflags='-O5'
1920     size_cflags='-O5 -xspace'
1921     filter_cflags=suncc_flags
1922     suncc_flags(){
1923         for flag; do
1924             case $flag in
1925                 -march=*|-mcpu=*)
1926                     case "${flag#*=}" in
1927                         native)                   echo -xtarget=native       ;;
1928                         v9|niagara)               echo -xarch=sparc          ;;
1929                         ultrasparc)               echo -xarch=sparcvis       ;;
1930                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1931                         i586|pentium)             echo -xchip=pentium        ;;
1932                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1933                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1934                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1935                         pentium4*)          echo -xtarget=pentium4           ;;
1936                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1937                         *-sse3)             echo -xarch=sse3                 ;;
1938                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1939                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1940                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1941                         k8|opteron|athlon64|athlon-fx)
1942                                                   echo -xarch=sse2a          ;;
1943                         athlon*)                  echo -xarch=pentium_proa   ;;
1944                     esac
1945                     ;;
1946                 -std=c99)             echo -xc99              ;;
1947                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1948                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1949                 -W*,*)                echo $flag              ;;
1950                 -f*-*|-W*)                                    ;;
1951                 *)                    echo $flag              ;;
1952             esac
1953         done
1954     }
1955 elif $cc -v 2>&1 | grep -q PathScale; then
1956     cc_type=pathscale
1957     cc_version=__PATHSCALE__
1958     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1959     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1960     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1961     speed_cflags='-O2'
1962     size_cflags='-Os'
1963 fi
1964
1965 test -n "$cc_type" && enable $cc_type ||
1966     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1967
1968 : ${as_default:=$cc}
1969 : ${dep_cc_default:=$cc}
1970 : ${ld_default:=$cc}
1971 set_default ar as dep_cc ld
1972
1973 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1974 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1975
1976 add_cflags $extra_cflags
1977 add_asflags $extra_cflags
1978
1979 if test -n "$sysroot"; then
1980     case "$cc_type" in
1981         gcc|llvm_gcc)
1982             add_cppflags --sysroot="$sysroot"
1983             add_ldflags --sysroot="$sysroot"
1984         ;;
1985         tms470)
1986             add_cppflags -I"$sysinclude"
1987             add_ldflags  --sysroot="$sysroot"
1988         ;;
1989         clang)
1990             add_cppflags -isysroot "$sysroot"
1991             add_ldflags -isysroot "$sysroot"
1992         ;;
1993     esac
1994 fi
1995
1996 if test "$cpu" = host; then
1997     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1998
1999     case "$cc_type" in
2000         gcc|llvm_gcc)
2001             check_native(){
2002                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2003                 sed -n "/$1=/{
2004                             s/.*$1=\\([^ ]*\\).*/\\1/
2005                             p
2006                             q
2007                         }" $TMPE
2008             }
2009             cpu=$(check_native -march || check_native -mcpu)
2010         ;;
2011     esac
2012
2013     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2014 fi
2015
2016 # Deal with common $arch aliases
2017 case "$arch" in
2018     arm*)
2019         arch="arm"
2020     ;;
2021     mips|mipsel|IP*)
2022         arch="mips"
2023     ;;
2024     mips64*)
2025         arch="mips"
2026         subarch="mips64"
2027     ;;
2028     parisc|hppa)
2029         arch="parisc"
2030     ;;
2031     parisc64|hppa64)
2032         arch="parisc"
2033         subarch="parisc64"
2034     ;;
2035     "Power Macintosh"|ppc|powerpc)
2036         arch="ppc"
2037     ;;
2038     ppc64|powerpc64)
2039         arch="ppc"
2040         subarch="ppc64"
2041     ;;
2042     s390|s390x)
2043         arch="s390"
2044     ;;
2045     sh4|sh)
2046         arch="sh4"
2047     ;;
2048     sun4u|sparc64)
2049         arch="sparc"
2050         subarch="sparc64"
2051     ;;
2052     i[3-6]86|i86pc|BePC|x86_64|amd64)
2053         arch="x86"
2054     ;;
2055 esac
2056
2057 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2058 enable $arch
2059
2060 # Add processor-specific flags
2061 if test "$cpu" = generic; then
2062     : do nothing
2063 elif enabled ppc; then
2064
2065     case $(tolower $cpu) in
2066         601|ppc601|powerpc601)
2067             cpuflags="-mcpu=601"
2068             disable altivec
2069         ;;
2070         603*|ppc603*|powerpc603*)
2071             cpuflags="-mcpu=603"
2072             disable altivec
2073         ;;
2074         604*|ppc604*|powerpc604*)
2075             cpuflags="-mcpu=604"
2076             disable altivec
2077         ;;
2078         g3|75*|ppc75*|powerpc75*)
2079             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2080             disable altivec
2081         ;;
2082         g4|745*|ppc745*|powerpc745*)
2083             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2084         ;;
2085         74*|ppc74*|powerpc74*)
2086             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2087         ;;
2088         g5|970|ppc970|powerpc970|power4*)
2089             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2090         ;;
2091         cell)
2092             cpuflags="-mcpu=cell"
2093             enable ldbrx
2094         ;;
2095         e500v2)
2096             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2097             disable altivec
2098         ;;
2099         e500)
2100             cpuflags="-mcpu=8540 -mhard-float"
2101             disable altivec
2102         ;;
2103     esac
2104
2105 elif enabled x86; then
2106
2107     case $cpu in
2108         i[345]86|pentium)
2109             cpuflags="-march=$cpu"
2110             disable mmx
2111         ;;
2112         # targets that do NOT support conditional mov (cmov)
2113         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2114             cpuflags="-march=$cpu"
2115             disable cmov
2116         ;;
2117         # targets that do support conditional mov (cmov)
2118         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2119             cpuflags="-march=$cpu"
2120             enable cmov
2121             enable fast_cmov
2122         ;;
2123         # targets that do support conditional mov but on which it's slow
2124         pentium4|pentium4m|prescott|nocona)
2125             cpuflags="-march=$cpu"
2126             enable cmov
2127             disable fast_cmov
2128         ;;
2129     esac
2130
2131 elif enabled sparc; then
2132
2133     case $cpu in
2134         niagara)
2135             cpuflags="-mcpu=$cpu"
2136             disable vis
2137         ;;
2138         sparc64)
2139             cpuflags="-mcpu=v9"
2140         ;;
2141     esac
2142
2143 elif enabled arm; then
2144
2145     case $cpu in
2146         armv*)
2147             cpuflags="-march=$cpu"
2148             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2149         ;;
2150         *)
2151             cpuflags="-mcpu=$cpu"
2152             case $cpu in
2153                 cortex-a*)                               subarch=armv7a  ;;
2154                 cortex-r*)                               subarch=armv7r  ;;
2155                 cortex-m*)                               subarch=armv7m  ;;
2156                 arm11*)                                  subarch=armv6   ;;
2157                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2158                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2159             esac
2160         ;;
2161     esac
2162
2163 elif enabled alpha; then
2164
2165     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2166
2167 elif enabled bfin; then
2168
2169     cpuflags="-mcpu=$cpu"
2170
2171 elif enabled mips; then
2172
2173     cpuflags="-march=$cpu"
2174
2175 elif enabled avr32; then
2176
2177     case $cpu in
2178         ap7[02]0[0-2])
2179             subarch="avr32_ap"
2180             cpuflags="-mpart=$cpu"
2181         ;;
2182         ap)
2183             subarch="avr32_ap"
2184             cpuflags="-march=$cpu"
2185         ;;
2186         uc3[ab]*)
2187             subarch="avr32_uc"
2188             cpuflags="-mcpu=$cpu"
2189         ;;
2190         uc)
2191             subarch="avr32_uc"
2192             cpuflags="-march=$cpu"
2193         ;;
2194     esac
2195
2196 fi
2197
2198 add_cflags $cpuflags
2199 add_asflags $cpuflags
2200
2201 # compiler sanity check
2202 check_exec <<EOF
2203 int main(void){ return 0; }
2204 EOF
2205 if test "$?" != 0; then
2206     echo "$cc is unable to create an executable file."
2207     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2208         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2209         echo "Only do this if you know what cross compiling means."
2210     fi
2211     die "C compiler test failed."
2212 fi
2213
2214 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2215 check_cflags -std=c99
2216 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2217 #include <stdlib.h>
2218 EOF
2219 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2220 #include <stdlib.h>
2221 EOF
2222
2223 check_host_cflags -std=c99
2224
2225 case "$arch" in
2226     alpha|ia64|mips|parisc|sparc)
2227         spic=$shared
2228     ;;
2229     x86)
2230         subarch="x86_32"
2231         check_cc <<EOF && subarch="x86_64"
2232         int test[(int)sizeof(char*) - 7];
2233 EOF
2234         if test "$subarch" = "x86_64"; then
2235             spic=$shared
2236         fi
2237     ;;
2238 esac
2239
2240 enable $subarch
2241 enabled spic && enable pic
2242
2243 # OS specific
2244 case $target_os in
2245     haiku)
2246         prefix_default="/boot/common"
2247         network_extralibs="-lnetwork"
2248         ;;
2249     sunos)
2250         FFSERVERLDFLAGS=""
2251         SHFLAGS='-shared -Wl,-h,$$(@F)'
2252         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2253         network_extralibs="-lsocket -lnsl"
2254         add_cppflags -D__EXTENSIONS__
2255         nm_opts='-P -g'
2256         ;;
2257     netbsd)
2258         oss_indev_extralibs="-lossaudio"
2259         oss_outdev_extralibs="-lossaudio"
2260         add_cppflags -D_XOPEN_SOURCE=600
2261         ;;
2262     openbsd)
2263         enable malloc_aligned
2264         # On OpenBSD 4.5. the compiler does not use PIC unless
2265         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2266         # however the generated executable will not do anything
2267         # (simply quits with exit-code 1, no crash, no output).
2268         # Thus explicitly enable PIC here.
2269         enable pic
2270         SHFLAGS='-shared'
2271         oss_indev_extralibs="-lossaudio"
2272         oss_outdev_extralibs="-lossaudio"
2273         ;;
2274     freebsd|dragonfly)
2275         enable malloc_aligned
2276         ;;
2277     bsd/os)
2278         add_extralibs -lpoll -lgnugetopt
2279         strip="strip -d"
2280         ;;
2281     darwin)
2282         enable malloc_aligned
2283         gas="gas-preprocessor.pl $cc"
2284         enabled ppc && add_asflags -force_cpusubtype_ALL
2285         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2286         strip="${strip} -x"
2287         add_ldflags -Wl,-dynamic,-search_paths_first
2288         SLIBSUF=".dylib"
2289         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2290         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2291         FFSERVERLDFLAGS=-Wl,-bind_at_load
2292         objformat="macho"
2293         enabled x86_64 && objformat="macho64"
2294         enabled_any pic shared ||
2295             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2296         ;;
2297     mingw32*)
2298         if test $target_os = "mingw32ce"; then
2299             disable network
2300         else
2301             target_os=mingw32
2302         fi
2303         LIBTARGET=i386
2304         if enabled x86_64; then
2305             enable malloc_aligned
2306             LIBTARGET=x64
2307         elif enabled arm; then
2308             LIBTARGET=arm
2309         fi
2310         shlibdir_default="$bindir_default"
2311         disable ffserver
2312         SLIBPREF=""
2313         SLIBSUF=".dll"
2314         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2315         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2316         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2317         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2318             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2319             install -d "$(LIBDIR)"; \
2320             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2321         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2322         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'
2323         objformat="win32"
2324         enable dos_paths
2325         check_cflags -fno-common
2326         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2327                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2328                 die "ERROR: MinGW runtime version must be >= 3.15."
2329         ;;
2330     cygwin*)
2331         target_os=cygwin
2332         shlibdir_default="$bindir_default"
2333         SLIBPREF="cyg"
2334         SLIBSUF=".dll"
2335         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2336         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2337         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2338         objformat="win32"
2339         enable dos_paths
2340         check_cflags -fno-common
2341         ;;
2342     *-dos|freedos|opendos)
2343         disable ffplay ffserver
2344         disable $INDEV_LIST $OUTDEV_LIST
2345         network_extralibs="-lsocket"
2346         objformat="coff"
2347         enable dos_paths
2348         ;;
2349     linux)
2350         enable dv1394
2351         ;;
2352     irix*)
2353         target_os=irix
2354         ranlib="echo ignoring ranlib"
2355         ;;
2356     os/2*)
2357         strip="lxlite"
2358         ln_s="cp -f"
2359         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2360         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2361         FFSERVERLDFLAGS=""
2362         LIBSUF="_s.a"
2363         SLIBPREF=""
2364         SLIBSUF=".dll"
2365         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2366         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2367         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2368           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2369           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2370           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2371           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2372           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2373         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2374           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2375         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2376         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2377         enable dos_paths
2378         ;;
2379     gnu/kfreebsd)
2380         ;;
2381     gnu)
2382         ;;
2383     none)
2384         ;;
2385     *)
2386         die "Unknown OS '$target_os'."
2387         ;;
2388 esac
2389
2390 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2391
2392 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2393
2394 set_default $PATHS_LIST
2395
2396 # we need to build at least one lib type
2397 if ! enabled_any static shared; then
2398     cat <<EOF
2399 At least one library type must be built.
2400 Specify --enable-static to build the static libraries or --enable-shared to
2401 build the shared libraries as well. To only build the shared libraries specify
2402 --disable-static in addition to --enable-shared.
2403 EOF
2404     exit 1;
2405 fi
2406
2407 disabled static && LIBNAME=""
2408
2409 die_license_disabled() {
2410     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2411 }
2412
2413 die_license_disabled gpl libx264
2414 die_license_disabled gpl libxavs
2415 die_license_disabled gpl libxvid
2416 die_license_disabled gpl postproc
2417 die_license_disabled gpl x11grab
2418
2419 die_license_disabled nonfree libfaac
2420
2421 die_license_disabled version3 libopencore_amrnb
2422 die_license_disabled version3 libopencore_amrwb
2423
2424 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2425
2426 check_deps $ARCH_EXT_LIST
2427
2428 disabled optimizations || check_cflags -fomit-frame-pointer
2429
2430 enable_pic() {
2431     enable pic
2432     add_cppflags -DPIC
2433     add_cflags   -fPIC
2434     add_asflags  -fPIC
2435 }
2436
2437 enabled pic && enable_pic
2438
2439 check_cc <<EOF || die "Symbol mangling check failed."
2440 int ff_extern;
2441 EOF
2442 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2443 extern_prefix=${sym%%ff_extern*}
2444
2445 check_cc <<EOF && enable inline_asm
2446 void foo(void) { __asm__ volatile ("" ::); }
2447 EOF
2448
2449 _restrict=
2450 for restrict_keyword in restrict __restrict__ __restrict; do
2451     check_cc <<EOF && _restrict=$restrict_keyword && break
2452 void foo(char * $restrict_keyword p);
2453 EOF
2454 done
2455
2456 check_cc <<EOF && enable attribute_packed
2457 struct { int x; } __attribute__((packed)) x;
2458 EOF
2459
2460 check_cc <<EOF && enable attribute_may_alias
2461 union { int x; } __attribute__((may_alias)) x;
2462 EOF
2463
2464 check_cc <<EOF || die "endian test failed"
2465 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2466 EOF
2467 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2468
2469 if enabled alpha; then
2470
2471     check_cflags -mieee
2472
2473 elif enabled arm; then
2474
2475     check_cflags -marm
2476     nogas=die
2477
2478     check_ld <<EOF && enable vfp_args
2479 __asm__ (".eabi_attribute 28, 1");
2480 int main(void) { return 0; }
2481 EOF
2482
2483     # We have to check if pld is a nop and disable it.
2484     check_asm pld '"pld [r0]"'
2485
2486     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2487     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2488     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2489     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2490     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2491     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2492
2493     enabled_all armv6t2 shared !pic && enable_pic
2494
2495 elif enabled mips; then
2496
2497     check_asm loongson '"dmult.g $1, $2, $3"'
2498     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2499
2500 elif enabled ppc; then
2501
2502     enable local_aligned_8 local_aligned_16
2503
2504     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2505     check_asm ibm_asm   '"add 0, 0, 0"'
2506     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2507     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2508
2509     # AltiVec flags: The FSF version of GCC differs from the Apple version
2510     if enabled altivec; then
2511         nogas=warn
2512         check_cflags -maltivec -mabi=altivec &&
2513         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2514         check_cflags -faltivec
2515
2516         # check if our compiler supports Motorola AltiVec C API
2517         check_cc <<EOF || disable altivec
2518 $inc_altivec_h
2519 int main(void) {
2520     vector signed int v1, v2, v3;
2521     v1 = vec_add(v2,v3);
2522     return 0;
2523 }
2524 EOF
2525
2526         # check if our compiler supports braces for vector declarations
2527         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2528 $inc_altivec_h
2529 int main (void) { (vector int) {1}; return 0; }
2530 EOF
2531     fi
2532
2533 elif enabled sparc; then
2534
2535     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2536         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2537
2538 elif enabled x86; then
2539
2540     enable local_aligned_8 local_aligned_16
2541
2542     # check whether EBP is available on x86
2543     # As 'i' is stored on the stack, this program will crash
2544     # if the base pointer is used to access it because the
2545     # base pointer is cleared in the inline assembly code.
2546     check_exec_crash <<EOF && enable ebp_available
2547     volatile int i=0;
2548     __asm__ volatile (
2549         "xorl %%ebp, %%ebp"
2550     ::: "%ebp");
2551     return i;
2552 EOF
2553
2554     # check whether EBX is available on x86
2555     check_asm ebx_available '""::"b"(0)' &&
2556         check_asm ebx_available '"":::"%ebx"'
2557
2558     # check whether more than 10 operands are supported
2559     check_cc <<EOF && enable ten_operands
2560 int main(void) {
2561     int x=0;
2562     __asm__ volatile(
2563         ""
2564         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2565     );
2566     return 0;
2567 }
2568 EOF
2569
2570     # check whether binutils is new enough to compile SSSE3/MMX2
2571     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2572     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2573
2574     check_asm bswap '"bswap %%eax" ::: "%eax"'
2575
2576     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2577     enabled     x86_64        && append YASMFLAGS "-m amd64"
2578     enabled     pic           && append YASMFLAGS "-DPIC"
2579     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2580     case "$objformat" in
2581         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2582     esac
2583     if ! disabled_any asm mmx yasm; then
2584         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2585             die "yasm not found, use --disable-yasm for a crippled build"
2586     fi
2587
2588     case "$cpu" in
2589         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2590             disable fast_clz
2591         ;;
2592     esac
2593
2594 fi
2595
2596 if enabled asm; then
2597     as=${gas:=$as}
2598     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2599         $nogas "GNU assembler not found, install gas-preprocessor"
2600 fi
2601
2602 if check_func dlopen; then
2603     ldl=
2604 elif check_func dlopen -ldl; then
2605     ldl=-ldl
2606 fi
2607
2608 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2609 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2610
2611 check_func  fcntl
2612 check_func  fork
2613 check_func  getaddrinfo $network_extralibs
2614 check_func  gethrtime
2615 check_func  getrusage
2616 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2617 check_func  inet_aton $network_extralibs
2618 check_func  isatty
2619 check_func  ${malloc_prefix}memalign            && enable memalign
2620 check_func  mkstemp
2621 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2622 check_func  setrlimit
2623 check_func  strerror_r
2624 check_func_headers io.h setmode
2625 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2626 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2627 check_func_headers windows.h GetProcessTimes
2628 check_func_headers windows.h VirtualAlloc
2629
2630 check_header conio.h
2631 check_header dlfcn.h
2632 check_header dxva2api.h
2633 check_header malloc.h
2634 check_header poll.h
2635 check_header sys/mman.h
2636 check_header sys/resource.h
2637 check_header sys/select.h
2638 check_header termios.h
2639 check_header vdpau/vdpau.h
2640 check_header vdpau/vdpau_x11.h
2641 check_header X11/extensions/XvMClib.h
2642
2643 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2644
2645 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2646      enabled_any $need_memalign ; then
2647     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2648 fi
2649
2650 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2651 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2652
2653 # check for some common methods of building with pthread support
2654 # do this before the optional library checks as some of them require pthreads
2655 if ! disabled pthreads && ! enabled w32threads; then
2656     enable pthreads
2657     if check_func pthread_create; then
2658         :
2659     elif check_func pthread_create -pthread; then
2660         add_cflags -pthread
2661         add_extralibs -pthread
2662     elif check_func pthread_create -pthreads; then
2663         add_cflags -pthreads
2664         add_extralibs -pthreads
2665     elif check_func pthread_create -lpthreadGC2; then
2666         add_extralibs -lpthreadGC2
2667     elif ! check_lib pthread.h pthread_create -lpthread; then
2668         disable pthreads
2669     fi
2670 fi
2671
2672 for thread in $THREADS_LIST; do
2673     if enabled $thread; then
2674         test -n "$thread_type" &&
2675             die "ERROR: Only one thread type must be selected." ||
2676             thread_type="$thread"
2677     fi
2678 done
2679
2680 check_lib math.h sin -lm
2681 disabled vaapi || check_lib va/va.h vaInitialize -lva
2682
2683 check_mathfunc exp2
2684 check_mathfunc exp2f
2685 check_mathfunc llrint
2686 check_mathfunc llrintf
2687 check_mathfunc log2
2688 check_mathfunc log2f
2689 check_mathfunc lrint
2690 check_mathfunc lrintf
2691 check_mathfunc round
2692 check_mathfunc roundf
2693 check_mathfunc truncf
2694
2695 # these are off by default, so fail if requested and not available
2696 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2697 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2698                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2699                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2700 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2701 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2702 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2703 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2704 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2705 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2706 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2707 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2708                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2709 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2710                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2711 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2712 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2713 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2714 enabled libvpx     && {
2715     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2716                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2717     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2718                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2719 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2720                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2721                         die "ERROR: libx264 version must be >= 0.98."; }
2722 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2723 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2724 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2725
2726 # libdc1394 check
2727 if enabled libdc1394; then
2728     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2729         enable libdc1394_2; } ||
2730     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2731         enable libdc1394_1; } ||
2732     die "ERROR: No version of libdc1394 found "
2733 fi
2734
2735 SDL_CONFIG="${cross_prefix}sdl-config"
2736 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2737     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2738     sdl_libs=$("${SDL_CONFIG}" --libs)
2739     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2740     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2741     enable sdl &&
2742     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2743 fi
2744
2745 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2746
2747 if enabled network; then
2748     check_type "sys/types.h sys/socket.h" socklen_t
2749     check_type netdb.h "struct addrinfo"
2750     check_type netinet/in.h "struct ipv6_mreq"
2751     check_type netinet/in.h "struct sockaddr_in6"
2752     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2753     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2754     # Prefer arpa/inet.h over winsock2
2755     if check_header arpa/inet.h ; then
2756         check_func closesocket
2757     elif check_header winsock2.h ; then
2758         check_func_headers winsock2.h closesocket -lws2 && \
2759             network_extralibs="-lws2" || \
2760         { check_func_headers winsock2.h closesocket -lws2_32 && \
2761             network_extralibs="-lws2_32"; }
2762         check_type ws2tcpip.h socklen_t
2763         check_type ws2tcpip.h "struct addrinfo"
2764         check_type ws2tcpip.h "struct ipv6_mreq"
2765         check_type ws2tcpip.h "struct sockaddr_in6"
2766         check_type ws2tcpip.h "struct sockaddr_storage"
2767         check_struct winsock2.h "struct sockaddr" sa_len
2768     else
2769         disable network
2770     fi
2771 fi
2772
2773 check_header linux/videodev.h
2774 check_header linux/videodev2.h
2775 check_header sys/videoio.h
2776
2777 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2778 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2779 # w32api 3.12 had it defined wrong
2780 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2781
2782 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2783 { check_header dev/bktr/ioctl_meteor.h &&
2784   check_header dev/bktr/ioctl_bt848.h; } ||
2785 { check_header machine/ioctl_meteor.h &&
2786   check_header machine/ioctl_bt848.h; } ||
2787 { check_header dev/video/meteor/ioctl_meteor.h &&
2788   check_header dev/video/bktr/ioctl_bt848.h; } ||
2789 check_header dev/ic/bt8xx.h
2790
2791 check_header sys/soundcard.h
2792 check_header soundcard.h
2793
2794 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2795
2796 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2797
2798 enabled x11grab                         &&
2799 check_header X11/Xlib.h                 &&
2800 check_header X11/extensions/XShm.h      &&
2801 check_header X11/extensions/Xfixes.h    &&
2802 check_func XOpenDisplay -lX11           &&
2803 check_func XShmCreateImage -lX11 -lXext &&
2804 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2805
2806 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2807 check_cpp_condition \
2808     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2809     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2810       disable vdpau; }
2811 fi
2812
2813 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2814
2815 # add some useful compiler flags if supported
2816 check_cflags -Wdeclaration-after-statement
2817 check_cflags -Wall
2818 check_cflags -Wno-parentheses
2819 check_cflags -Wno-switch
2820 check_cflags -Wdisabled-optimization
2821 check_cflags -Wpointer-arith
2822 check_cflags -Wredundant-decls
2823 check_cflags -Wno-pointer-sign
2824 check_cflags -Wcast-qual
2825 check_cflags -Wwrite-strings
2826 check_cflags -Wtype-limits
2827 check_cflags -Wundef
2828 check_cflags -Wmissing-prototypes
2829 enabled extra_warnings && check_cflags -Winline
2830
2831 # add some linker flags
2832 check_ldflags -Wl,--warn-common
2833 check_ldflags -Wl,--as-needed
2834 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'
2835 check_ldflags -Wl,-Bsymbolic
2836
2837 echo "X{};" > $TMPV
2838 if test_ldflags -Wl,--version-script,$TMPV; then
2839     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2840     check_cc <<EOF && enable symver_asm_label
2841 void ff_foo(void) __asm__ ("av_foo@VERSION");
2842 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2843 EOF
2844     check_cc <<EOF && enable symver_gnu_asm
2845 __asm__(".symver ff_foo,av_foo@VERSION");
2846 void ff_foo(void) {}
2847 EOF
2848 fi
2849
2850 if enabled small; then
2851     add_cflags $size_cflags
2852     optimizations="small"
2853 elif enabled optimizations; then
2854     add_cflags $speed_cflags
2855 else
2856     add_cflags $noopt_cflags
2857 fi
2858 check_cflags -fno-math-errno
2859 check_cflags -fno-signed-zeros
2860
2861 if enabled icc; then
2862     # Just warnings, no remarks
2863     check_cflags -w1
2864     # -wd: Disable following warnings
2865     # 144, 167, 556: -Wno-pointer-sign
2866     # 10006: ignoring unknown option -fno-signed-zeros
2867     # 10156: ignoring option '-W'; no argument required
2868     check_cflags -wd144,167,556,10006,10156
2869     # 11030: Warning unknown option --as-needed
2870     # 10156: ignoring option '-export'; no argument required
2871     check_ldflags -wd10156,11030
2872     # Allow to compile with optimizations
2873     check_ldflags -march=$cpu
2874     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2875     enable ebp_available
2876 elif enabled ccc; then
2877     # disable some annoying warnings
2878     add_cflags -msg_disable cvtu32to64
2879     add_cflags -msg_disable embedcomment
2880     add_cflags -msg_disable needconstext
2881     add_cflags -msg_disable nomainieee
2882     add_cflags -msg_disable ptrmismatch1
2883     add_cflags -msg_disable unreachcode
2884 elif enabled gcc; then
2885     check_cflags -fno-tree-vectorize
2886     check_cflags -Werror=implicit-function-declaration
2887     check_cflags -Werror=missing-prototypes
2888 elif enabled llvm_gcc; then
2889     check_cflags -mllvm -stack-alignment=16
2890 elif enabled clang; then
2891     check_cflags -mllvm -stack-alignment=16
2892     check_cflags -Qunused-arguments
2893 elif enabled armcc; then
2894     # 2523: use of inline assembler is deprecated
2895     add_cflags -W${armcc_opt},--diag_suppress=2523
2896     add_cflags -W${armcc_opt},--diag_suppress=1207
2897 elif enabled tms470; then
2898     add_cflags -pds=824 -pds=837
2899 fi
2900
2901 enabled_any $THREADS_LIST      && enable threads
2902
2903 check_deps $CONFIG_LIST       \
2904            $CONFIG_EXTRA      \
2905            $HAVE_LIST         \
2906            $DECODER_LIST      \
2907            $ENCODER_LIST      \
2908            $HWACCEL_LIST      \
2909            $PARSER_LIST       \
2910            $BSF_LIST          \
2911            $DEMUXER_LIST      \
2912            $MUXER_LIST        \
2913            $FILTER_LIST       \
2914            $INDEV_LIST        \
2915            $OUTDEV_LIST       \
2916            $PROTOCOL_LIST     \
2917            $ACODEC_TESTS      \
2918            $VCODEC_TESTS      \
2919            $LAVF_TESTS        \
2920            $LAVFI_TESTS       \
2921            $SEEK_TESTS        \
2922
2923 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2924
2925 echo "install prefix            $prefix"
2926 echo "source path               $source_path"
2927 echo "C compiler                $cc"
2928 echo "ARCH                      $arch ($cpu)"
2929 if test "$build_suffix" != ""; then
2930     echo "build suffix              $build_suffix"
2931 fi
2932 if test "$extra_version" != ""; then
2933     echo "version string suffix     $extra_version"
2934 fi
2935 echo "big-endian                ${bigendian-no}"
2936 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2937 if enabled x86; then
2938     echo "yasm                      ${yasm-no}"
2939     echo "MMX enabled               ${mmx-no}"
2940     echo "MMX2 enabled              ${mmx2-no}"
2941     echo "3DNow! enabled            ${amd3dnow-no}"
2942     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2943     echo "SSE enabled               ${sse-no}"
2944     echo "SSSE3 enabled             ${ssse3-no}"
2945     echo "CMOV enabled              ${cmov-no}"
2946     echo "CMOV is fast              ${fast_cmov-no}"
2947     echo "EBX available             ${ebx_available-no}"
2948     echo "EBP available             ${ebp_available-no}"
2949     echo "10 operands supported     ${ten_operands-no}"
2950 fi
2951 if enabled arm; then
2952     echo "ARMv5TE enabled           ${armv5te-no}"
2953     echo "ARMv6 enabled             ${armv6-no}"
2954     echo "ARMv6T2 enabled           ${armv6t2-no}"
2955     echo "ARM VFP enabled           ${armvfp-no}"
2956     echo "IWMMXT enabled            ${iwmmxt-no}"
2957     echo "NEON enabled              ${neon-no}"
2958 fi
2959 if enabled mips; then
2960     echo "MMI enabled               ${mmi-no}"
2961 fi
2962 if enabled ppc; then
2963     echo "AltiVec enabled           ${altivec-no}"
2964     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2965     echo "dcbzl available           ${dcbzl-no}"
2966 fi
2967 if enabled sparc; then
2968     echo "VIS enabled               ${vis-no}"
2969 fi
2970 echo "debug symbols             ${debug-no}"
2971 echo "strip symbols             ${stripping-no}"
2972 echo "optimizations             ${optimizations-no}"
2973 echo "static                    ${static-no}"
2974 echo "shared                    ${shared-no}"
2975 echo "postprocessing support    ${postproc-no}"
2976 echo "new filter support        ${avfilter-no}"
2977 echo "network support           ${network-no}"
2978 echo "threading support         ${thread_type-no}"
2979 echo "SDL support               ${sdl-no}"
2980 echo "Sun medialib support      ${mlib-no}"
2981 echo "AVISynth enabled          ${avisynth-no}"
2982 echo "libdc1394 support         ${libdc1394-no}"
2983 echo "libdirac enabled          ${libdirac-no}"
2984 echo "libfaac enabled           ${libfaac-no}"
2985 echo "libgsm enabled            ${libgsm-no}"
2986 echo "libmp3lame enabled        ${libmp3lame-no}"
2987 echo "libnut enabled            ${libnut-no}"
2988 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2989 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2990 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2991 echo "librtmp enabled           ${librtmp-no}"
2992 echo "libschroedinger enabled   ${libschroedinger-no}"
2993 echo "libspeex enabled          ${libspeex-no}"
2994 echo "libtheora enabled         ${libtheora-no}"
2995 echo "libvorbis enabled         ${libvorbis-no}"
2996 echo "libvpx enabled            ${libvpx-no}"
2997 echo "libx264 enabled           ${libx264-no}"
2998 echo "libxavs enabled           ${libxavs-no}"
2999 echo "libxvid enabled           ${libxvid-no}"
3000 echo "zlib enabled              ${zlib-no}"
3001 echo "bzlib enabled             ${bzlib-no}"
3002 echo
3003
3004 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3005     echo "Enabled ${type}s:"
3006     eval list=\$$(toupper $type)_LIST
3007     print_enabled '_*' $list | sort | pr -3 -t
3008     echo
3009 done
3010
3011 license="LGPL version 2.1 or later"
3012 if enabled nonfree; then
3013     license="nonfree and unredistributable"
3014 elif enabled gplv3; then
3015     license="GPL version 3 or later"
3016 elif enabled lgplv3; then
3017     license="LGPL version 3 or later"
3018 elif enabled gpl; then
3019     license="GPL version 2 or later"
3020 fi
3021
3022 echo "License: $license"
3023
3024 echo "Creating config.mak and config.h..."
3025
3026 # build tree in object directory if source path is different from current one
3027 if enabled source_path_used; then
3028     DIRS="
3029         doc
3030         libavcodec
3031         libavcodec/$arch
3032         libavcore
3033         libavdevice
3034         libavfilter
3035         libavformat
3036         libavutil
3037         libavutil/$arch
3038         libpostproc
3039         libswscale
3040         libswscale/$arch
3041         tests
3042         tools
3043     "
3044     FILES="
3045         Makefile
3046         common.mak
3047         subdir.mak
3048         doc/texi2pod.pl
3049         libavcodec/Makefile
3050         libavcodec/${arch}/Makefile
3051         libavcore/Makefile
3052         libavdevice/Makefile
3053         libavfilter/Makefile
3054         libavformat/Makefile
3055         libavutil/Makefile
3056         libpostproc/Makefile
3057         libswscale/Makefile
3058     "
3059     map 'mkdir -p $v' $DIRS;
3060     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3061 fi
3062
3063 enabled stripping || strip="echo skipping strip"
3064
3065 cat > config.mak <<EOF
3066 # Automatically generated by configure - do not modify!
3067 ifndef FFMPEG_CONFIG_MAK
3068 FFMPEG_CONFIG_MAK=1
3069 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3070 prefix=$prefix
3071 LIBDIR=\$(DESTDIR)$libdir
3072 SHLIBDIR=\$(DESTDIR)$shlibdir
3073 INCDIR=\$(DESTDIR)$incdir
3074 BINDIR=\$(DESTDIR)$bindir
3075 DATADIR=\$(DESTDIR)$datadir
3076 MANDIR=\$(DESTDIR)$mandir
3077 SRC_PATH="$source_path"
3078 SRC_PATH_BARE=$source_path
3079 BUILD_ROOT="$PWD"
3080 CC_IDENT=$cc_ident
3081 ARCH=$arch
3082 CC=$cc
3083 AS=$as
3084 LD=$ld
3085 DEPCC=$dep_cc
3086 YASM=$yasmexe
3087 YASMDEP=$yasmexe
3088 AR=$ar
3089 RANLIB=$ranlib
3090 CP=cp -p
3091 LN_S=$ln_s
3092 STRIP=$strip
3093 CPPFLAGS=$CPPFLAGS
3094 CFLAGS=$CFLAGS
3095 ASFLAGS=$ASFLAGS
3096 CC_O=$CC_O
3097 LDFLAGS=$LDFLAGS
3098 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3099 SHFLAGS=$SHFLAGS
3100 YASMFLAGS=$YASMFLAGS
3101 BUILDSUF=$build_suffix
3102 FULLNAME=$FULLNAME
3103 LIBPREF=$LIBPREF
3104 LIBSUF=$LIBSUF
3105 LIBNAME=$LIBNAME
3106 SLIBPREF=$SLIBPREF
3107 SLIBSUF=$SLIBSUF
3108 EXESUF=$EXESUF
3109 EXTRA_VERSION=$extra_version
3110 DEPFLAGS=$DEPFLAGS
3111 CCDEP=$CCDEP
3112 ASDEP=$ASDEP
3113 CC_DEPFLAGS=$CC_DEPFLAGS
3114 AS_DEPFLAGS=$AS_DEPFLAGS
3115 HOSTCC=$host_cc
3116 HOSTCFLAGS=$host_cflags
3117 HOSTEXESUF=$HOSTEXESUF
3118 HOSTLDFLAGS=$host_ldflags
3119 HOSTLIBS=$host_libs
3120 TARGET_EXEC=$target_exec
3121 TARGET_PATH=$target_path
3122 SDL_LIBS=$sdl_libs
3123 SDL_CFLAGS=$sdl_cflags
3124 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3125 EXTRALIBS=$extralibs
3126 INSTALL=install
3127 LIBTARGET=${LIBTARGET}
3128 SLIBNAME=${SLIBNAME}
3129 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3130 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3131 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3132 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3133 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3134 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3135 SAMPLES=$samples
3136 EOF
3137
3138 get_version(){
3139     name=$1
3140     file=$source_path/$2
3141     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3142     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3143     lcname=$(tolower $name)
3144     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3145     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3146 }
3147
3148 get_version LIBSWSCALE  libswscale/swscale.h
3149 get_version LIBPOSTPROC libpostproc/postprocess.h
3150 get_version LIBAVCODEC  libavcodec/avcodec.h
3151 get_version LIBAVCORE   libavcore/avcore.h
3152 get_version LIBAVDEVICE libavdevice/avdevice.h
3153 get_version LIBAVFORMAT libavformat/avformat.h
3154 get_version LIBAVUTIL   libavutil/avutil.h
3155 get_version LIBAVFILTER libavfilter/avfilter.h
3156
3157 cat > $TMPH <<EOF
3158 /* Automatically generated by configure - do not modify! */
3159 #ifndef FFMPEG_CONFIG_H
3160 #define FFMPEG_CONFIG_H
3161 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3162 #define FFMPEG_LICENSE "$(c_escape $license)"
3163 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3164 #define CC_TYPE "$cc_type"
3165 #define CC_VERSION $cc_version
3166 #define restrict $_restrict
3167 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3168 #define EXTERN_PREFIX "${extern_prefix}"
3169 #define EXTERN_ASM ${extern_prefix}
3170 EOF
3171
3172 test -n "$malloc_prefix" &&
3173     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3174
3175 if enabled small || disabled optimizations; then
3176     echo "#undef  av_always_inline"  >> $TMPH
3177     echo "#define av_always_inline"  >> $TMPH
3178 fi
3179
3180 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3181 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3182 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3183                                       $CONFIG_EXTRA      \
3184                                       $DECODER_LIST      \
3185                                       $ENCODER_LIST      \
3186                                       $HWACCEL_LIST      \
3187                                       $PARSER_LIST       \
3188                                       $BSF_LIST          \
3189                                       $DEMUXER_LIST      \
3190                                       $MUXER_LIST        \
3191                                       $FILTER_LIST       \
3192                                       $PROTOCOL_LIST     \
3193                                       $INDEV_LIST        \
3194                                       $OUTDEV_LIST       \
3195
3196 cat >>config.mak <<EOF
3197 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3198 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3199 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3200 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3201 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3202 EOF
3203
3204 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3205 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3206
3207 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3208 cp_if_changed $TMPH config.h
3209 touch .config
3210
3211 cat > $TMPH <<EOF
3212 /* Generated by ffconf */
3213 #ifndef AVUTIL_AVCONFIG_H
3214 #define AVUTIL_AVCONFIG_H
3215 EOF
3216
3217 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3218
3219 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3220
3221 cp_if_changed $TMPH libavutil/avconfig.h
3222
3223 test -n "$WARNINGS" && printf "\n$WARNINGS"
3224
3225 # build pkg-config files
3226
3227 pkgconfig_generate(){
3228 name=$1
3229 shortname=${name#lib}${build_suffix}
3230 comment=$2
3231 version=$3
3232 libs=$4
3233 requires=$5
3234 enabled ${name#lib} || return 0
3235 cat <<EOF > $name/$name.pc
3236 prefix=$prefix
3237 exec_prefix=\${prefix}
3238 libdir=$libdir
3239 includedir=$incdir
3240
3241 Name: $name
3242 Description: $comment
3243 Version: $version
3244 Requires: $(enabled shared || echo $requires)
3245 Requires.private: $(enabled shared && echo $requires)
3246 Conflicts:
3247 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3248 Libs.private: $(enabled shared && echo $libs)
3249 Cflags: -I\${includedir}
3250 EOF
3251 cat <<EOF > $name/$name-uninstalled.pc
3252 prefix=
3253 exec_prefix=
3254 libdir=\${pcfiledir}
3255 includedir=${source_path}
3256
3257 Name: $name
3258 Description: $comment
3259 Version: $version
3260 Requires: $requires
3261 Conflicts:
3262 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3263 Cflags: -I\${includedir}
3264 EOF
3265 }
3266
3267 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3268 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3269 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3270 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3271 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3272 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3273 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3274 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"