use strict_std_complience from avcodec_opts[AVMEDIA_TYPE_*]
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avcore         disable libavcore build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --enable-postproc        enable GPLed postprocessing support [no]
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --enable-w32threads      use Win32 threads [no]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101   --disable-fastdiv        disable table-based division
102   --enable-small           optimize for size instead of speed
103   --disable-aandct         disable AAN DCT code
104   --disable-dct            disable DCT code
105   --disable-fft            disable FFT code
106   --disable-golomb         disable Golomb code
107   --disable-huffman        disable Huffman code
108   --disable-lpc            disable LPC code
109   --disable-mdct           disable MDCT code
110   --disable-rdft           disable RDFT code
111   --disable-vaapi          disable VAAPI code
112   --disable-vdpau          disable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
117   --disable-everything     disable all components listed below
118   --disable-encoder=NAME   disable encoder NAME
119   --enable-encoder=NAME    enable encoder NAME
120   --disable-encoders       disable all encoders
121   --disable-decoder=NAME   disable decoder NAME
122   --enable-decoder=NAME    enable decoder NAME
123   --disable-decoders       disable all decoders
124   --disable-hwaccel=NAME   disable hwaccel NAME
125   --enable-hwaccel=NAME    enable hwaccel NAME
126   --disable-hwaccels       disable all hwaccels
127   --disable-muxer=NAME     disable muxer NAME
128   --enable-muxer=NAME      enable muxer NAME
129   --disable-muxers         disable all muxers
130   --disable-demuxer=NAME   disable demuxer NAME
131   --enable-demuxer=NAME    enable demuxer NAME
132   --disable-demuxers       disable all demuxers
133   --enable-parser=NAME     enable parser NAME
134   --disable-parser=NAME    disable parser NAME
135   --disable-parsers        disable all parsers
136   --enable-bsf=NAME        enable bitstream filter NAME
137   --disable-bsf=NAME       disable bitstream filter NAME
138   --disable-bsfs           disable all bitstream filters
139   --enable-protocol=NAME   enable protocol NAME
140   --disable-protocol=NAME  disable protocol NAME
141   --disable-protocols      disable all protocols
142   --disable-indev=NAME     disable input device NAME
143   --disable-outdev=NAME    disable output device NAME
144   --disable-indevs         disable input devices
145   --disable-outdevs        disable output devices
146   --disable-devices        disable all devices
147   --enable-filter=NAME     enable filter NAME
148   --disable-filter=NAME    disable filter NAME
149   --disable-filters        disable all filters
150   --list-decoders          show all available decoders
151   --list-encoders          show all available encoders
152   --list-hwaccels          show all available hardware accelerators
153   --list-muxers            show all available muxers
154   --list-demuxers          show all available demuxers
155   --list-parsers           show all available parsers
156   --list-protocols         show all available protocols
157   --list-bsfs              show all available bitstream filters
158   --list-indevs            show all available input devices
159   --list-outdevs           show all available output devices
160   --list-filters           show all available filters
161
162 External library support:
163   --enable-avisynth        enable reading of AVISynth script files [no]
164   --enable-bzlib           enable bzlib [autodetect]
165   --enable-frei0r          enable frei0r video filtering
166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
168   --enable-libopencv       enable video filtering via libopencv [no]
169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
170                            and libraw1394 [no]
171   --enable-libdirac        enable Dirac support via libdirac [no]
172   --enable-libfaac         enable FAAC support via libfaac [no]
173   --enable-libgsm          enable GSM support via libgsm [no]
174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
175   --enable-libnut          enable NUT (de)muxing via libnut,
176                            native (de)muxer exists [no]
177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
180   --enable-libspeex        enable Speex decoding via libspeex [no]
181   --enable-libtheora       enable Theora encoding via libtheora [no]
182   --enable-libvorbis       enable Vorbis encoding via libvorbis,
183                            native implementation exists [no]
184   --enable-libvpx          enable VP8 support via libvpx [no]
185   --enable-libx264         enable H.264 encoding via x264 [no]
186   --enable-libxavs         enable AVS encoding via xavs [no]
187   --enable-libxvid         enable Xvid encoding via xvidcore,
188                            native MPEG-4/Xvid encoder exists [no]
189   --enable-mlib            enable Sun medialib [no]
190   --enable-zlib            enable zlib [autodetect]
191
192 Advanced options (experts only):
193   --source-path=PATH       path to source code [$source_path]
194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
195   --enable-cross-compile   assume a cross-compiler is used
196   --sysroot=PATH           root of cross-build tree
197   --sysinclude=PATH        location of cross-build system headers
198   --target-os=OS           compiler targets OS [$target_os]
199   --target-exec=CMD        command to run executables on target
200   --target-path=DIR        path to view of build directory on target
201   --nm=NM                  use nm tool
202   --ar=AR                  use archive tool AR [$ar_default]
203   --as=AS                  use assembler AS [$as_default]
204   --cc=CC                  use C compiler CC [$cc_default]
205   --ld=LD                  use linker LD
206   --host-cc=HOSTCC         use host C compiler HOSTCC
207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
209   --host-libs=HLIBS        use libs HLIBS when linking for host
210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
213   --extra-version=STRING   version string suffix []
214   --build-suffix=SUFFIX    library name suffix []
215   --arch=ARCH              select architecture [$arch]
216   --cpu=CPU                select the minimum required CPU (affects
217                            instruction selection, may crash on older CPUs)
218   --disable-asm            disable all assembler optimizations
219   --disable-altivec        disable AltiVec optimizations
220   --disable-amd3dnow       disable 3DNow! optimizations
221   --disable-amd3dnowext    disable 3DNow! extended optimizations
222   --disable-mmx            disable MMX optimizations
223   --disable-mmx2           disable MMX2 optimizations
224   --disable-sse            disable SSE optimizations
225   --disable-ssse3          disable SSSE3 optimizations
226   --disable-armv5te        disable armv5te optimizations
227   --disable-armv6          disable armv6 optimizations
228   --disable-armv6t2        disable armv6t2 optimizations
229   --disable-armvfp         disable ARM VFP optimizations
230   --disable-iwmmxt         disable iwmmxt optimizations
231   --disable-mmi            disable MMI optimizations
232   --disable-neon           disable neon optimizations
233   --disable-vis            disable VIS optimizations
234   --disable-yasm           disable use of yasm assembler
235   --enable-pic             build position-independent code
236   --malloc-prefix=PFX      prefix malloc and related names with PFX
237   --enable-sram            allow use of on-chip SRAM
238
239 Developer options (useful when working on FFmpeg itself):
240   --disable-debug          disable debugging symbols
241   --enable-debug=LEVEL     set the debug level [$debuglevel]
242   --disable-optimizations  disable compiler optimizations
243   --enable-extra-warnings  enable more compiler warnings
244   --disable-stripping      disable stripping of executables and shared libraries
245   --samples=PATH           location of test samples for FATE
246
247 NOTE: Object files are built at the place where configure is launched.
248 EOF
249   exit 0
250 }
251
252 quotes='""'
253
254 log(){
255     echo "$@" >> $logfile
256 }
257
258 log_file(){
259     log BEGIN $1
260     pr -n -t $1 >> $logfile
261     log END $1
262 }
263
264 echolog(){
265     log "$@"
266     echo "$@"
267 }
268
269 warn(){
270     log "WARNING: $*"
271     WARNINGS="${WARNINGS}WARNING: $*\n"
272 }
273
274 die(){
275     echolog "$@"
276     cat <<EOF
277
278 If you think configure made a mistake, make sure you are using the latest
279 version from SVN.  If the latest version fails, report the problem to the
280 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
281 EOF
282     if disabled logging; then
283         cat <<EOF
284 Rerun configure with logging enabled (do not use --disable-logging), and
285 include the log this produces with your report.
286 EOF
287     else
288 cat <<EOF
289 Include the log file "$logfile" produced by configure as this will help
290 solving the problem.
291 EOF
292     fi
293     exit 1
294 }
295
296 # Avoid locale weirdness, besides we really just want to translate ASCII.
297 toupper(){
298     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
299 }
300
301 tolower(){
302     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
303 }
304
305 c_escape(){
306     echo "$*" | sed 's/["\\]/\\\0/g'
307 }
308
309 sh_quote(){
310     v=$(echo "$1" | sed "s/'/'\\\\''/g")
311     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
312     echo "$v"
313 }
314
315 filter(){
316     pat=$1
317     shift
318     for v; do
319         eval "case $v in $pat) echo $v ;; esac"
320     done
321 }
322
323 map(){
324     m=$1
325     shift
326     for v; do eval $m; done
327 }
328
329 set_all(){
330     value=$1
331     shift
332     for var in $*; do
333         eval $var=$value
334     done
335 }
336
337 set_weak(){
338     value=$1
339     shift
340     for var; do
341         eval : \${$var:=$value}
342     done
343 }
344
345 pushvar(){
346     for var in $*; do
347         eval level=\${${var}_level:=0}
348         eval ${var}_${level}="\$$var"
349         eval ${var}_level=$(($level+1))
350     done
351 }
352
353 popvar(){
354     for var in $*; do
355         eval level=\${${var}_level:-0}
356         test $level = 0 && continue
357         eval level=$(($level-1))
358         eval $var="\${${var}_${level}}"
359         eval ${var}_level=$level
360         eval unset ${var}_${level}
361     done
362 }
363
364 enable(){
365     set_all yes $*
366 }
367
368 disable(){
369     set_all no $*
370 }
371
372 enable_weak(){
373     set_weak yes $*
374 }
375
376 disable_weak(){
377     set_weak no $*
378 }
379
380 enable_safe(){
381     for var; do
382         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
383     done
384 }
385
386 disable_safe(){
387     for var; do
388         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
389     done
390 }
391
392 do_enable_deep(){
393     for var; do
394         enabled $var && continue
395         eval sel="\$${var}_select"
396         eval sgs="\$${var}_suggest"
397         pushvar var sgs
398         enable_deep $sel
399         popvar sgs
400         enable_deep_weak $sgs
401         popvar var
402     done
403 }
404
405 enable_deep(){
406     do_enable_deep $*
407     enable $*
408 }
409
410 enable_deep_weak(){
411     do_enable_deep $*
412     enable_weak $*
413 }
414
415 enabled(){
416     test "${1#!}" = "$1" && op== || op=!=
417     eval test "x\$${1#!}" $op "xyes"
418 }
419
420 disabled(){
421     test "${1#!}" = "$1" && op== || op=!=
422     eval test "x\$${1#!}" $op "xno"
423 }
424
425 enabled_all(){
426     for opt; do
427         enabled $opt || return 1
428     done
429 }
430
431 disabled_all(){
432     for opt; do
433         disabled $opt || return 1
434     done
435 }
436
437 enabled_any(){
438     for opt; do
439         enabled $opt && return 0
440     done
441 }
442
443 disabled_any(){
444     for opt; do
445         disabled $opt && return 0
446     done
447     return 1
448 }
449
450 set_default(){
451     for opt; do
452         eval : \${$opt:=\$${opt}_default}
453     done
454 }
455
456 is_in(){
457     value=$1
458     shift
459     for var in $*; do
460         [ $var = $value ] && return 0
461     done
462     return 1
463 }
464
465 check_deps(){
466     for cfg; do
467         cfg="${cfg#!}"
468         enabled ${cfg}_checking && die "Circular dependency for $cfg."
469         disabled ${cfg}_checking && continue
470         enable ${cfg}_checking
471
472         eval dep_all="\$${cfg}_deps"
473         eval dep_any="\$${cfg}_deps_any"
474         eval dep_sel="\$${cfg}_select"
475         eval dep_sgs="\$${cfg}_suggest"
476         eval dep_ifa="\$${cfg}_if"
477         eval dep_ifn="\$${cfg}_if_any"
478
479         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
480         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
481         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
482
483         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
484         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
485         enabled_all  $dep_all || disable $cfg
486         enabled_any  $dep_any || disable $cfg
487         disabled_any $dep_sel && disable $cfg
488
489         if enabled $cfg; then
490             eval dep_extralibs="\$${cfg}_extralibs"
491             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
492             enable_deep $dep_sel
493             enable_deep_weak $dep_sgs
494         fi
495
496         disable ${cfg}_checking
497     done
498 }
499
500 print_config_h(){
501     enabled $1 && v=1 || v=0
502     echo "#define $2 $v"
503 }
504
505 print_config_mak(){
506     enabled $1 && v= || v=!
507     echo "$v$2=yes"
508 }
509
510 print_config_asm(){
511     enabled $1 && echo "%define $2"
512 }
513
514 print_config(){
515     pfx=$1
516     files=$2
517     shift 2
518     for cfg; do
519         ucname="$(toupper $cfg)"
520         for f in $files; do
521             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
522         done
523     done
524 }
525
526 print_enabled(){
527     test "$1" = -n && end=" " && shift || end="\n"
528     suf=$1
529     shift
530     for v; do
531         enabled $v && printf "%s$end" ${v%$suf};
532     done
533 }
534
535 append(){
536     var=$1
537     shift
538     eval "$var=\"\$$var $*\""
539 }
540
541 prepend(){
542     var=$1
543     shift
544     eval "$var=\"$* \$$var\""
545 }
546
547 add_cppflags(){
548     append CPPFLAGS $($filter_cppflags "$@")
549 }
550
551 add_cflags(){
552     append CFLAGS $($filter_cflags "$@")
553 }
554
555 add_asflags(){
556     append ASFLAGS $($filter_asflags "$@")
557 }
558
559 add_ldflags(){
560     append LDFLAGS "$@"
561 }
562
563 add_extralibs(){
564     prepend extralibs "$@"
565 }
566
567 check_cmd(){
568     log "$@"
569     "$@" >> $logfile 2>&1
570 }
571
572 check_cc(){
573     log check_cc "$@"
574     cat > $TMPC
575     log_file $TMPC
576     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
577 }
578
579 check_cpp(){
580     log check_cpp "$@"
581     cat > $TMPC
582     log_file $TMPC
583     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
584 }
585
586 check_as(){
587     log check_as "$@"
588     cat > $TMPC
589     log_file $TMPC
590     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
591 }
592
593 check_asm(){
594     log check_asm "$@"
595     name="$1"
596     code="$2"
597     shift 2
598     disable $name
599     check_as "$@" <<EOF && enable $name
600 void foo(void){ __asm__ volatile($code); }
601 EOF
602 }
603
604 check_yasm(){
605     log check_yasm "$@"
606     echo "$1" > $TMPS
607     log_file $TMPS
608     shift 1
609     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
610 }
611
612 check_ld(){
613     log check_ld "$@"
614     flags=''
615     libs=''
616     for f; do
617         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
618     done
619     check_cc $($filter_cflags $flags) || return
620     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
621 }
622
623 check_cppflags(){
624     log check_cppflags "$@"
625     set -- $($filter_cppflags "$@")
626     check_cc "$@" <<EOF && append CPPFLAGS "$@"
627 int x;
628 EOF
629 }
630
631 check_cflags(){
632     log check_cflags "$@"
633     set -- $($filter_cflags "$@")
634     check_cc "$@" <<EOF && append CFLAGS "$@"
635 int x;
636 EOF
637 }
638
639 test_ldflags(){
640     log test_ldflags "$@"
641     check_ld "$@" <<EOF
642 int main(void){ return 0; }
643 EOF
644 }
645
646 check_ldflags(){
647     log check_ldflags "$@"
648     test_ldflags "$@" && add_ldflags "$@"
649 }
650
651 check_header(){
652     log check_header "$@"
653     header=$1
654     shift
655     disable_safe $header
656     check_cpp "$@" <<EOF && enable_safe $header
657 #include <$header>
658 int x;
659 EOF
660 }
661
662 check_func(){
663     log check_func "$@"
664     func=$1
665     shift
666     disable $func
667     check_ld "$@" <<EOF && enable $func
668 extern int $func();
669 int main(void){ $func(); }
670 EOF
671 }
672
673 check_mathfunc(){
674     log check_mathfunc "$@"
675     func=$1
676     shift
677     disable $func
678     check_ld "$@" <<EOF && enable $func
679 #include <math.h>
680 float foo(float f) { return $func(f); }
681 int main(void){ return 0; }
682 EOF
683 }
684
685 check_func_headers(){
686     log check_func_headers "$@"
687     headers=$1
688     func=$2
689     shift 2
690     disable $func
691     incs=""
692     for hdr in $headers; do
693         incs="$incs
694 #include <$hdr>"
695     done
696     check_ld "$@" <<EOF && enable $func && enable_safe $headers
697 $incs
698 int main(int argc, char **argv){
699     return (long) $func;
700 }
701 EOF
702 }
703
704 check_cpp_condition(){
705     log check_cpp_condition "$@"
706     header=$1
707     condition=$2
708     shift 2
709     check_cpp $($filter_cppflags "$@") <<EOF
710 #include <$header>
711 #if !($condition)
712 #error "unsatisfied condition: $condition"
713 #endif
714 EOF
715 }
716
717 check_lib(){
718     log check_lib "$@"
719     header="$1"
720     func="$2"
721     shift 2
722     check_header $header && check_func $func "$@" && add_extralibs "$@"
723 }
724
725 check_lib2(){
726     log check_lib2 "$@"
727     headers="$1"
728     func="$2"
729     shift 2
730     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
731 }
732
733 check_exec(){
734     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
735 }
736
737 check_exec_crash(){
738     code=$(cat)
739
740     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
741     # are safe but may not be available everywhere.  Thus we use
742     # raise(SIGTERM) instead.  The check is run in a subshell so we
743     # can redirect the "Terminated" message from the shell.  SIGBUS
744     # is not defined by standard C so it is used conditionally.
745
746     (check_exec "$@") >> $logfile 2>&1 <<EOF
747 #include <signal.h>
748 static void sighandler(int sig){
749     raise(SIGTERM);
750 }
751 int main(void){
752     signal(SIGILL, sighandler);
753     signal(SIGFPE, sighandler);
754     signal(SIGSEGV, sighandler);
755 #ifdef SIGBUS
756     signal(SIGBUS, sighandler);
757 #endif
758     { $code }
759 }
760 EOF
761 }
762
763 check_type(){
764     log check_type "$@"
765     headers=$1
766     type=$2
767     shift 2
768     disable_safe "$type"
769     incs=""
770     for hdr in $headers; do
771         incs="$incs
772 #include <$hdr>"
773     done
774     check_cc "$@" <<EOF && enable_safe "$type"
775 $incs
776 $type v;
777 EOF
778 }
779
780 check_struct(){
781     log check_type "$@"
782     headers=$1
783     struct=$2
784     member=$3
785     shift 3
786     disable_safe "${struct}_${member}"
787     incs=""
788     for hdr in $headers; do
789         incs="$incs
790 #include <$hdr>"
791     done
792     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
793 $incs
794 const void *p = &(($struct *)0)->$member;
795 EOF
796 }
797
798 require(){
799     name="$1"
800     header="$2"
801     func="$3"
802     shift 3
803     check_lib $header $func "$@" || die "ERROR: $name not found"
804 }
805
806 require2(){
807     name="$1"
808     headers="$2"
809     func="$3"
810     shift 3
811     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
812 }
813
814 check_host_cc(){
815     log check_host_cc "$@"
816     cat > $TMPC
817     log_file $TMPC
818     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
819 }
820
821 check_host_cflags(){
822     log check_host_cflags "$@"
823     check_host_cc "$@" <<EOF && append host_cflags "$@"
824 int x;
825 EOF
826 }
827
828 apply(){
829     file=$1
830     shift
831     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
832 }
833
834 cp_if_changed(){
835     cmp -s "$1" "$2" &&
836         echo "$2 is unchanged" ||
837         cp -f "$1" "$2"
838 }
839
840 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
841 # system-dependent things.
842
843 COMPONENT_LIST="
844     bsfs
845     decoders
846     demuxers
847     encoders
848     filters
849     hwaccels
850     indevs
851     muxers
852     outdevs
853     parsers
854     protocols
855 "
856
857 CONFIG_LIST="
858     $COMPONENT_LIST
859     aandct
860     avcodec
861     avcore
862     avdevice
863     avfilter
864     avformat
865     avisynth
866     bzlib
867     dct
868     doc
869     dwt
870     dxva2
871     fastdiv
872     ffmpeg
873     ffplay
874     ffprobe
875     ffserver
876     fft
877     frei0r
878     golomb
879     gpl
880     gray
881     h264dsp
882     h264pred
883     hardcoded_tables
884     huffman
885     libdc1394
886     libdirac
887     libfaac
888     libgsm
889     libmp3lame
890     libnut
891     libopencore_amrnb
892     libopencore_amrwb
893     libopencv
894     libopenjpeg
895     librtmp
896     libschroedinger
897     libspeex
898     libtheora
899     libvorbis
900     libvpx
901     libx264
902     libxavs
903     libxvid
904     lpc
905     lsp
906     mdct
907     memalign_hack
908     mlib
909     mpegaudio_hp
910     network
911     nonfree
912     pic
913     postproc
914     rdft
915     runtime_cpudetect
916     shared
917     small
918     sram
919     static
920     swscale
921     swscale_alpha
922     vaapi
923     vdpau
924     version3
925     x11grab
926     zlib
927 "
928
929 THREADS_LIST='
930     pthreads
931     w32threads
932 '
933
934 ARCH_LIST='
935     alpha
936     arm
937     avr32
938     avr32_ap
939     avr32_uc
940     bfin
941     ia64
942     m68k
943     mips
944     mips64
945     parisc
946     ppc
947     ppc64
948     s390
949     sh4
950     sparc
951     sparc64
952     tomi
953     x86
954     x86_32
955     x86_64
956 '
957
958 ARCH_EXT_LIST='
959     altivec
960     amd3dnow
961     amd3dnowext
962     armv5te
963     armv6
964     armv6t2
965     armvfp
966     iwmmxt
967     mmi
968     mmx
969     mmx2
970     neon
971     ppc4xx
972     sse
973     ssse3
974     vis
975 '
976
977 HAVE_LIST_PUB='
978     bigendian
979     fast_unaligned
980 '
981
982 HAVE_LIST="
983     $ARCH_EXT_LIST
984     $HAVE_LIST_PUB
985     $THREADS_LIST
986     aligned_stack
987     alsa_asoundlib_h
988     altivec_h
989     arpa_inet_h
990     attribute_may_alias
991     attribute_packed
992     bswap
993     closesocket
994     cmov
995     conio_h
996     dcbzl
997     dev_bktr_ioctl_bt848_h
998     dev_bktr_ioctl_meteor_h
999     dev_ic_bt8xx_h
1000     dev_video_meteor_ioctl_meteor_h
1001     dev_video_bktr_ioctl_bt848_h
1002     dlfcn_h
1003     dlopen
1004     dos_paths
1005     ebp_available
1006     ebx_available
1007     exp2
1008     exp2f
1009     fast_64bit
1010     fast_clz
1011     fast_cmov
1012     fcntl
1013     fork
1014     getaddrinfo
1015     gethrtime
1016     GetProcessMemoryInfo
1017     GetProcessTimes
1018     getrusage
1019     gnu_as
1020     struct_rusage_ru_maxrss
1021     ibm_asm
1022     inet_aton
1023     inline_asm
1024     isatty
1025     ldbrx
1026     libdc1394_1
1027     libdc1394_2
1028     llrint
1029     llrintf
1030     local_aligned_16
1031     local_aligned_8
1032     log2
1033     log2f
1034     loongson
1035     lrint
1036     lrintf
1037     lzo1x_999_compress
1038     machine_ioctl_bt848_h
1039     machine_ioctl_meteor_h
1040     malloc_h
1041     memalign
1042     mkstemp
1043     pld
1044     posix_memalign
1045     round
1046     roundf
1047     sdl
1048     sdl_video_size
1049     setmode
1050     socklen_t
1051     soundcard_h
1052     poll_h
1053     setrlimit
1054     strerror_r
1055     strtok_r
1056     struct_addrinfo
1057     struct_ipv6_mreq
1058     struct_sockaddr_in6
1059     struct_sockaddr_sa_len
1060     struct_sockaddr_storage
1061     symver
1062     symver_gnu_asm
1063     symver_asm_label
1064     sys_mman_h
1065     sys_resource_h
1066     sys_select_h
1067     sys_soundcard_h
1068     sys_videoio_h
1069     ten_operands
1070     termios_h
1071     threads
1072     truncf
1073     vfp_args
1074     VirtualAlloc
1075     winsock2_h
1076     xform_asm
1077     yasm
1078 "
1079
1080 # options emitted with CONFIG_ prefix but not available on command line
1081 CONFIG_EXTRA="
1082     avutil
1083     gplv3
1084     lgplv3
1085 "
1086
1087 CMDLINE_SELECT="
1088     $ARCH_EXT_LIST
1089     $CONFIG_LIST
1090     $THREADS_LIST
1091     asm
1092     cross_compile
1093     debug
1094     extra_warnings
1095     logging
1096     optimizations
1097     stripping
1098     yasm
1099 "
1100
1101 PATHS_LIST='
1102     bindir
1103     datadir
1104     incdir
1105     libdir
1106     mandir
1107     prefix
1108     shlibdir
1109 '
1110
1111 CMDLINE_SET="
1112     $PATHS_LIST
1113     ar
1114     arch
1115     as
1116     build_suffix
1117     cc
1118     cpu
1119     cross_prefix
1120     dep_cc
1121     extra_version
1122     host_cc
1123     host_cflags
1124     host_ldflags
1125     host_libs
1126     host_os
1127     ld
1128     logfile
1129     malloc_prefix
1130     nm
1131     samples
1132     source_path
1133     strip
1134     sysinclude
1135     sysroot
1136     target_exec
1137     target_os
1138     target_path
1139 "
1140
1141 CMDLINE_APPEND="
1142     extra_cflags
1143 "
1144
1145 # code dependency declarations
1146
1147 # architecture extensions
1148
1149 armv5te_deps="arm"
1150 armv6_deps="arm"
1151 armv6t2_deps="arm"
1152 armvfp_deps="arm"
1153 iwmmxt_deps="arm"
1154 neon_deps="arm"
1155
1156 mmi_deps="mips"
1157
1158 altivec_deps="ppc"
1159 ppc4xx_deps="ppc"
1160
1161 vis_deps="sparc"
1162
1163 x86_64_suggest="cmov fast_cmov"
1164 amd3dnow_deps="mmx"
1165 amd3dnowext_deps="amd3dnow"
1166 mmx_deps="x86"
1167 mmx2_deps="mmx"
1168 sse_deps="mmx"
1169 ssse3_deps="sse"
1170
1171 aligned_stack_if_any="ppc x86"
1172 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1173 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1174 fast_unaligned_if_any="armv6 ppc x86"
1175
1176 need_memalign="altivec neon sse"
1177 inline_asm_deps="!tms470"
1178
1179 symver_if_any="symver_asm_label symver_gnu_asm"
1180
1181 # subsystems
1182 dct_select="rdft"
1183 mdct_select="fft"
1184 rdft_select="fft"
1185
1186 # decoders / encoders / hardware accelerators
1187 aac_decoder_select="mdct rdft"
1188 aac_encoder_select="mdct"
1189 ac3_decoder_select="mdct ac3_parser"
1190 alac_encoder_select="lpc"
1191 amrnb_decoder_select="lsp"
1192 atrac1_decoder_select="mdct"
1193 atrac3_decoder_select="mdct"
1194 binkaudio_dct_decoder_select="mdct rdft dct"
1195 binkaudio_rdft_decoder_select="mdct rdft"
1196 cavs_decoder_select="golomb"
1197 cook_decoder_select="mdct"
1198 cscd_decoder_suggest="zlib"
1199 dca_decoder_select="mdct"
1200 dnxhd_encoder_select="aandct"
1201 dxa_decoder_select="zlib"
1202 eac3_decoder_select="ac3_decoder"
1203 eamad_decoder_select="aandct"
1204 eatgq_decoder_select="aandct"
1205 eatqi_decoder_select="aandct"
1206 ffv1_decoder_select="golomb"
1207 flac_decoder_select="golomb"
1208 flac_encoder_select="golomb lpc"
1209 flashsv_decoder_select="zlib"
1210 flashsv_encoder_select="zlib"
1211 flv_decoder_select="h263_decoder"
1212 flv_encoder_select="h263_encoder"
1213 fraps_decoder_select="huffman"
1214 h261_encoder_select="aandct"
1215 h263_decoder_select="h263_parser"
1216 h263_encoder_select="aandct"
1217 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1218 h263i_decoder_select="h263_decoder"
1219 h263p_encoder_select="h263_encoder"
1220 h264_decoder_select="golomb h264dsp h264pred"
1221 h264_dxva2_hwaccel_deps="dxva2api_h"
1222 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1223 h264_vaapi_hwaccel_select="vaapi"
1224 h264_vdpau_decoder_select="vdpau h264_decoder"
1225 imc_decoder_select="fft mdct"
1226 jpegls_decoder_select="golomb"
1227 jpegls_encoder_select="golomb"
1228 ljpeg_encoder_select="aandct"
1229 loco_decoder_select="golomb"
1230 mjpeg_encoder_select="aandct"
1231 mlp_decoder_select="mlp_parser"
1232 mp1float_decoder_select="dct"
1233 mp2float_decoder_select="dct"
1234 mp3adufloat_decoder_select="dct"
1235 mp3float_decoder_select="dct"
1236 mp3on4float_decoder_select="dct"
1237 mpeg1video_encoder_select="aandct"
1238 mpeg2video_encoder_select="aandct"
1239 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1240 mpeg4_encoder_select="h263_encoder"
1241 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1242 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1243 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1244 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1245 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1246 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1247 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1248 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1249 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1250 msmpeg4v1_decoder_select="h263_decoder"
1251 msmpeg4v1_encoder_select="h263_encoder"
1252 msmpeg4v2_decoder_select="h263_decoder"
1253 msmpeg4v2_encoder_select="h263_encoder"
1254 msmpeg4v3_decoder_select="h263_decoder"
1255 msmpeg4v3_encoder_select="h263_encoder"
1256 nellymoser_decoder_select="mdct"
1257 nellymoser_encoder_select="mdct"
1258 png_decoder_select="zlib"
1259 png_encoder_select="zlib"
1260 qcelp_decoder_select="lsp"
1261 qdm2_decoder_select="mdct rdft"
1262 ra_144_encoder_select="lpc"
1263 rv10_decoder_select="h263_decoder"
1264 rv10_encoder_select="h263_encoder"
1265 rv20_decoder_select="h263_decoder"
1266 rv20_encoder_select="h263_encoder"
1267 rv30_decoder_select="golomb h264pred"
1268 rv40_decoder_select="golomb h264pred"
1269 shorten_decoder_select="golomb"
1270 sipr_decoder_select="lsp"
1271 snow_decoder_select="dwt"
1272 snow_encoder_select="aandct dwt"
1273 sonic_decoder_select="golomb"
1274 sonic_encoder_select="golomb"
1275 sonic_ls_encoder_select="golomb"
1276 svq1_encoder_select="aandct"
1277 svq3_decoder_select="golomb h264dsp h264pred"
1278 svq3_decoder_suggest="zlib"
1279 theora_decoder_select="vp3_decoder"
1280 tiff_decoder_suggest="zlib"
1281 tiff_encoder_suggest="zlib"
1282 truehd_decoder_select="mlp_decoder"
1283 tscc_decoder_select="zlib"
1284 twinvq_decoder_select="mdct lsp"
1285 vc1_decoder_select="h263_decoder"
1286 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1287 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1288 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1289 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1290 vorbis_decoder_select="mdct"
1291 vorbis_encoder_select="mdct"
1292 vp6_decoder_select="huffman"
1293 vp6a_decoder_select="vp6_decoder"
1294 vp6f_decoder_select="vp6_decoder"
1295 vp8_decoder_select="h264pred"
1296 wmapro_decoder_select="mdct"
1297 wmav1_decoder_select="mdct"
1298 wmav1_encoder_select="mdct"
1299 wmav2_decoder_select="mdct"
1300 wmav2_encoder_select="mdct"
1301 wmavoice_decoder_select="lsp rdft dct mdct"
1302 wmv1_decoder_select="h263_decoder"
1303 wmv1_encoder_select="h263_encoder"
1304 wmv2_decoder_select="h263_decoder"
1305 wmv2_encoder_select="h263_encoder"
1306 wmv3_decoder_select="vc1_decoder"
1307 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1308 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1309 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1310 zlib_decoder_select="zlib"
1311 zlib_encoder_select="zlib"
1312 zmbv_decoder_select="zlib"
1313 zmbv_encoder_select="zlib"
1314
1315 vaapi_deps="va_va_h"
1316 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1317
1318 # parsers
1319 h264_parser_select="golomb h264dsp h264pred"
1320
1321 # external libraries
1322 libdirac_decoder_deps="libdirac !libschroedinger"
1323 libdirac_encoder_deps="libdirac"
1324 libfaac_encoder_deps="libfaac"
1325 libgsm_decoder_deps="libgsm"
1326 libgsm_encoder_deps="libgsm"
1327 libgsm_ms_decoder_deps="libgsm"
1328 libgsm_ms_encoder_deps="libgsm"
1329 libmp3lame_encoder_deps="libmp3lame"
1330 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1331 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1332 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1333 libopenjpeg_decoder_deps="libopenjpeg"
1334 libschroedinger_decoder_deps="libschroedinger"
1335 libschroedinger_encoder_deps="libschroedinger"
1336 libspeex_decoder_deps="libspeex"
1337 libtheora_encoder_deps="libtheora"
1338 libvorbis_encoder_deps="libvorbis"
1339 libvpx_decoder_deps="libvpx"
1340 libvpx_encoder_deps="libvpx"
1341 libx264_encoder_deps="libx264"
1342 libxavs_encoder_deps="libxavs"
1343 libxvid_encoder_deps="libxvid"
1344
1345 # demuxers / muxers
1346 ac3_demuxer_deps="ac3_parser"
1347 asf_stream_muxer_select="asf_muxer"
1348 avisynth_demuxer_deps="avisynth"
1349 dirac_demuxer_deps="dirac_parser"
1350 eac3_demuxer_select="ac3_parser"
1351 ipod_muxer_select="mov_muxer"
1352 libnut_demuxer_deps="libnut"
1353 libnut_muxer_deps="libnut"
1354 matroska_audio_muxer_select="matroska_muxer"
1355 matroska_demuxer_suggest="zlib bzlib"
1356 mov_demuxer_suggest="zlib"
1357 mp3_demuxer_deps="mpegaudio_parser"
1358 mp4_muxer_select="mov_muxer"
1359 mpegtsraw_demuxer_select="mpegts_demuxer"
1360 mxf_d10_muxer_select="mxf_muxer"
1361 ogg_demuxer_select="golomb"
1362 psp_muxer_select="mov_muxer"
1363 rtsp_demuxer_deps="sdp_demuxer"
1364 rtsp_muxer_deps="sdp_demuxer"
1365 rtsp_muxer_select="rtp_muxer"
1366 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1367 sdp_demuxer_select="asf_demuxer rm_demuxer"
1368 spdif_muxer_select="aac_parser"
1369 tg2_muxer_select="mov_muxer"
1370 tgp_muxer_select="mov_muxer"
1371 w64_demuxer_deps="wav_demuxer"
1372
1373 # indevs / outdevs
1374 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1375 alsa_outdev_deps="alsa_asoundlib_h"
1376 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1377 dv1394_indev_deps="dv1394 dv_demuxer"
1378 jack_indev_deps="jack_jack_h"
1379 libdc1394_indev_deps="libdc1394"
1380 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1381 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1382 v4l_indev_deps="linux_videodev_h"
1383 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1384 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1385 vfwcap_indev_extralibs="-lavicap32"
1386 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1387 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1388
1389 # filters
1390 frei0r_filter_deps="frei0r dlopen strtok_r"
1391
1392 # protocols
1393 gopher_protocol_deps="network"
1394 http_protocol_deps="network"
1395 http_protocol_select="tcp_protocol"
1396 mmsh_protocol_select="http_protocol"
1397 mmst_protocol_deps="network"
1398 rtmp_protocol_select="tcp_protocol"
1399 rtp_protocol_select="udp_protocol"
1400 tcp_protocol_deps="network"
1401 udp_protocol_deps="network"
1402
1403 # filters
1404 blackframe_filter_deps="gpl"
1405 ocv_smooth_filter_deps="libopencv"
1406 yadif_filter_deps="gpl"
1407
1408 # libraries
1409 avdevice_deps="avcodec avformat"
1410 avformat_deps="avcodec"
1411
1412 # programs
1413 ffmpeg_deps="avcodec avformat swscale"
1414 ffmpeg_select="buffer_filter"
1415 ffplay_deps="avcodec avformat swscale sdl"
1416 ffplay_select="rdft"
1417 ffprobe_deps="avcodec avformat"
1418 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1419 ffserver_extralibs='$ldl'
1420
1421 doc_deps="texi2html"
1422
1423 # tests
1424
1425 test_deps(){
1426     suf1=$1
1427     suf2=$2
1428     shift 2
1429     for v; do
1430         dep=${v%=*}
1431         tests=${v#*=}
1432         for name in ${tests}; do
1433             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1434         done
1435     done
1436 }
1437
1438 set_ne_test_deps(){
1439     eval ${1}_be_test_deps="bigendian"
1440     eval ${1}_le_test_deps="!bigendian"
1441 }
1442
1443 test_deps _encoder _decoder                                             \
1444     ac3                                                                 \
1445     adpcm_g726=g726                                                     \
1446     adpcm_ima_qt                                                        \
1447     adpcm_ima_wav                                                       \
1448     adpcm_ms                                                            \
1449     adpcm_swf                                                           \
1450     adpcm_yamaha=adpcm_yam                                              \
1451     alac                                                                \
1452     asv1                                                                \
1453     asv2                                                                \
1454     bmp                                                                 \
1455     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1456     dvvideo="dv dv50"                                                   \
1457     ffv1                                                                \
1458     flac                                                                \
1459     flashsv                                                             \
1460     flv                                                                 \
1461     gif                                                                 \
1462     h261                                                                \
1463     h263="h263 h263p"                                                   \
1464     huffyuv                                                             \
1465     jpegls                                                              \
1466     mjpeg="jpg mjpeg ljpeg"                                             \
1467     mp2                                                                 \
1468     mpeg1video="mpeg mpeg1b"                                            \
1469     mpeg2video="mpeg2 mpeg2thread"                                      \
1470     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1471     msmpeg4v3=msmpeg4                                                   \
1472     msmpeg4v2                                                           \
1473     pbm=pbmpipe                                                         \
1474     pcx                                                                 \
1475     pgm="pgm pgmpipe"                                                   \
1476     ppm="ppm ppmpipe"                                                   \
1477     rawvideo="rgb yuv"                                                  \
1478     roq                                                                 \
1479     rv10                                                                \
1480     rv20                                                                \
1481     sgi                                                                 \
1482     snow="snow snowll"                                                  \
1483     svq1                                                                \
1484     targa=tga                                                           \
1485     tiff                                                                \
1486     wmav1                                                               \
1487     wmav2                                                               \
1488     wmv1                                                                \
1489     wmv2                                                                \
1490
1491 test_deps _muxer _demuxer                                               \
1492     aiff                                                                \
1493     pcm_alaw=alaw                                                       \
1494     asf                                                                 \
1495     au                                                                  \
1496     avi                                                                 \
1497     dv=dv_fmt                                                           \
1498     ffm                                                                 \
1499     flv=flv_fmt                                                         \
1500     gxf                                                                 \
1501     matroska=mkv                                                        \
1502     mmf                                                                 \
1503     mov                                                                 \
1504     pcm_mulaw=mulaw                                                     \
1505     mxf                                                                 \
1506     nut                                                                 \
1507     ogg                                                                 \
1508     rawvideo=pixfmt                                                     \
1509     rm                                                                  \
1510     swf                                                                 \
1511     mpegts=ts                                                           \
1512     voc                                                                 \
1513     wav                                                                 \
1514     yuv4mpegpipe=yuv4mpeg                                               \
1515
1516 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1517
1518 set_ne_test_deps pixdesc
1519 set_ne_test_deps pixfmts_crop
1520 set_ne_test_deps pixfmts_hflip
1521 set_ne_test_deps pixfmts_null
1522 set_ne_test_deps pixfmts_pad
1523 set_ne_test_deps pixfmts_scale
1524 set_ne_test_deps pixfmts_vflip
1525
1526 # default parameters
1527
1528 logfile="config.log"
1529
1530 # installation paths
1531 prefix_default="/usr/local"
1532 bindir_default='${prefix}/bin'
1533 datadir_default='${prefix}/share/ffmpeg'
1534 incdir_default='${prefix}/include'
1535 libdir_default='${prefix}/lib'
1536 mandir_default='${prefix}/share/man'
1537 shlibdir_default="$libdir_default"
1538
1539 # toolchain
1540 ar_default="ar"
1541 cc_default="gcc"
1542 cc_version=\"unknown\"
1543 host_cc_default="gcc"
1544 ln_s="ln -sf"
1545 nm_default="nm"
1546 objformat="elf"
1547 ranlib="ranlib"
1548 strip_default="strip"
1549 yasmexe="yasm"
1550 nogas=":"
1551
1552 nm_opts='-g'
1553
1554 # machine
1555 arch_default=$(uname -m)
1556 cpu="generic"
1557
1558 # OS
1559 target_os_default=$(tolower $(uname -s))
1560 host_os=$target_os_default
1561
1562 # configurable options
1563 enable avcodec
1564 enable avcore
1565 enable avdevice
1566 enable avfilter
1567 enable avformat
1568 enable avutil
1569 enable asm
1570 enable debug
1571 enable doc
1572 enable fastdiv
1573 enable ffmpeg
1574 enable ffplay
1575 enable ffprobe
1576 enable ffserver
1577 enable mpegaudio_hp
1578 enable network
1579 enable optimizations
1580 enable protocols
1581 enable static
1582 enable stripping
1583 enable swscale
1584 enable swscale_alpha
1585
1586 # build settings
1587 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1588 FFSERVERLDFLAGS=-Wl,-E
1589 LIBPREF="lib"
1590 LIBSUF=".a"
1591 FULLNAME='$(NAME)$(BUILDSUF)'
1592 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1593 SLIBPREF="lib"
1594 SLIBSUF=".so"
1595 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1596 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1597 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1598 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1599
1600 CC_O='-o $@'
1601
1602 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1603 host_libs='-lm'
1604
1605 target_path='$(CURDIR)'
1606
1607 # since the object filename is not given with the -MM flag, the compiler
1608 # is only able to print the basename, and we must add the path ourselves
1609 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1610 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1611
1612 # find source path
1613 source_path="$(dirname "$0")"
1614 enable source_path_used
1615 if test -f configure; then
1616     source_path="$(pwd)"
1617     disable source_path_used
1618 else
1619     source_path="$(cd "$source_path"; pwd)"
1620     echo "$source_path" | grep -q '[[:blank:]]' &&
1621         die "Out of tree builds are impossible with whitespace in source path."
1622     test -e "$source_path/config.h" &&
1623         die "Out of tree builds are impossible with config.h in source dir."
1624 fi
1625
1626 for v in "$@"; do
1627     r=${v#*=}
1628     l=${v%"$r"}
1629     r=$(sh_quote "$r")
1630     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1631 done
1632
1633 find_things(){
1634     thing=$1
1635     pattern=$2
1636     file=$source_path/$3
1637     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1638 }
1639
1640 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1641 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1642 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1643 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1644 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1645 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1646 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1647 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1648 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1649 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1650 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1651
1652 find_tests(){
1653     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1654 }
1655
1656 ACODEC_TESTS=$(find_tests acodec)
1657 VCODEC_TESTS=$(find_tests vsynth1)
1658 LAVF_TESTS=$(find_tests lavf)
1659 LAVFI_TESTS=$(find_tests lavfi)
1660 SEEK_TESTS=$(find_tests seek seek_)
1661
1662 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1663
1664 for n in $COMPONENT_LIST; do
1665     v=$(toupper ${n%s})_LIST
1666     eval enable \$$v
1667     eval ${n}_if_any="\$$v"
1668 done
1669
1670 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1671
1672 die_unknown(){
1673     echo "Unknown option \"$1\"."
1674     echo "See $0 --help for available options."
1675     exit 1
1676 }
1677
1678 show_list() {
1679     suffix=_$1
1680     shift
1681     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1682     exit 0
1683 }
1684
1685 for opt do
1686     optval="${opt#*=}"
1687     case "$opt" in
1688     --extra-ldflags=*) add_ldflags $optval
1689     ;;
1690     --extra-libs=*) add_extralibs $optval
1691     ;;
1692     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1693     ;;
1694     --enable-debug=*) debuglevel="$optval"
1695     ;;
1696     --disable-everything)
1697     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1698     ;;
1699     --enable-*=*|--disable-*=*)
1700     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1701     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1702     eval list=\$$(toupper $thing)_LIST
1703     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1704     $action $(filter "$name" $list)
1705     ;;
1706     --enable-?*|--disable-?*)
1707     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1708     if is_in $option $COMPONENT_LIST; then
1709         test $action = disable && action=unset
1710         eval $action \$$(toupper ${option%s})_LIST
1711     elif is_in $option $CMDLINE_SELECT; then
1712         $action $option
1713     else
1714         die_unknown $opt
1715     fi
1716     ;;
1717     --list-*)
1718         NAME="${opt#--list-}"
1719         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1720         NAME=${NAME%s}
1721         eval show_list $NAME \$$(toupper $NAME)_LIST
1722     ;;
1723     --help|-h) show_help
1724     ;;
1725     *)
1726     optname="${opt%%=*}"
1727     optname="${optname#--}"
1728     optname=$(echo "$optname" | sed 's/-/_/g')
1729     if is_in $optname $CMDLINE_SET; then
1730         eval $optname='$optval'
1731     elif is_in $optname $CMDLINE_APPEND; then
1732         append $optname "$optval"
1733     else
1734          die_unknown $opt
1735     fi
1736     ;;
1737     esac
1738 done
1739
1740 disabled logging && logfile=/dev/null
1741
1742 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1743 set >> $logfile
1744
1745 test -n "$cross_prefix" && enable cross_compile
1746
1747 if enabled cross_compile; then
1748     test -n "$arch" && test -n "$target_os" ||
1749         die "Must specify target arch and OS when cross-compiling"
1750 fi
1751
1752 set_default arch target_os
1753
1754 ar_default="${cross_prefix}${ar_default}"
1755 cc_default="${cross_prefix}${cc_default}"
1756 nm_default="${cross_prefix}${nm_default}"
1757 ranlib="${cross_prefix}${ranlib}"
1758 strip_default="${cross_prefix}${strip_default}"
1759
1760 sysinclude_default="${sysroot}/usr/include"
1761
1762 set_default cc nm strip sysinclude
1763 enabled cross_compile || host_cc_default=$cc
1764 set_default host_cc
1765
1766 exesuf() {
1767     case $1 in
1768         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1769     esac
1770 }
1771
1772 EXESUF=$(exesuf $target_os)
1773 HOSTEXESUF=$(exesuf $host_os)
1774
1775 # set temporary file name
1776 : ${TMPDIR:=$TEMPDIR}
1777 : ${TMPDIR:=$TMP}
1778 : ${TMPDIR:=/tmp}
1779
1780 if ! check_cmd type mktemp; then
1781     # simple replacement for missing mktemp
1782     # NOT SAFE FOR GENERAL USE
1783     mktemp(){
1784         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1785     }
1786 fi
1787
1788 tmpfile(){
1789     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1790         (set -C; exec > $tmp) 2>/dev/null ||
1791         die "Unable to create temporary file in $TMPDIR."
1792     append TMPFILES $tmp
1793     eval $1=$tmp
1794 }
1795
1796 trap 'rm -f -- $TMPFILES' EXIT
1797 trap exit HUP INT TERM
1798
1799 tmpfile TMPC  .c
1800 tmpfile TMPE  $EXESUF
1801 tmpfile TMPH  .h
1802 tmpfile TMPO  .o
1803 tmpfile TMPS  .S
1804 tmpfile TMPV  .ver
1805 tmpfile TMPSH .sh
1806 tmpfile TMPASM .asm
1807
1808 unset -f mktemp
1809
1810 # make sure we can execute files in $TMPDIR
1811 cat > $TMPSH 2>> $logfile <<EOF
1812 #! /bin/sh
1813 EOF
1814 chmod +x $TMPSH >> $logfile 2>&1
1815 if ! $TMPSH >> $logfile 2>&1; then
1816     cat <<EOF
1817 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1818 variable to another directory and make sure that it is not mounted noexec.
1819 EOF
1820     die "Sanity test failed."
1821 fi
1822
1823 filter_cflags=echo
1824 filter_cppflags=echo
1825 filter_asflags=echo
1826
1827 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1828     cc_type=llvm_gcc
1829     cc_version=__VERSION__
1830     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1831     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1832     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1833     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1834     speed_cflags='-O3'
1835     size_cflags='-Os'
1836 elif $cc -v 2>&1 | grep -qi ^gcc; then
1837     cc_type=gcc
1838     cc_version=__VERSION__
1839     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1840     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1841     if ! $cc -dumpversion | grep -q '^2\.'; then
1842         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1843         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1844     fi
1845     speed_cflags='-O3'
1846     size_cflags='-Os'
1847 elif $cc --version 2>/dev/null | grep -q Intel; then
1848     cc_type=icc
1849     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1850     cc_ident=$($cc --version | head -n1)
1851     icc_version=$($cc -dumpversion)
1852     CC_DEPFLAGS='-MMD'
1853     AS_DEPFLAGS='-MMD'
1854     speed_cflags='-O3'
1855     size_cflags='-Os'
1856     noopt_cflags='-O1'
1857 elif $cc -v 2>&1 | grep -q xlc; then
1858     cc_type=xlc
1859     cc_version="AV_STRINGIFY(__IBMC__)"
1860     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1861     speed_cflags='-O5'
1862     size_cflags='-O5 -qcompact'
1863 elif $cc -V 2>/dev/null | grep -q Compaq; then
1864     cc_type=ccc
1865     cc_version="AV_STRINGIFY(__DECC_VER)"
1866     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1867     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1868     debuglevel=3
1869     add_ldflags -Wl,-z,now # calls to libots crash without this
1870     speed_cflags='-fast'
1871     size_cflags='-O1'
1872 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1873     test -d "$sysroot" || die "No valid sysroot specified."
1874     cc_type=armcc
1875     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1876     cc_ident=$($cc --vsn | head -n1)
1877     armcc_conf="$PWD/armcc.conf"
1878     $cc --arm_linux_configure                 \
1879         --arm_linux_config_file="$armcc_conf" \
1880         --configure_sysroot="$sysroot"        \
1881         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1882         die "Error creating armcc configuration file."
1883     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1884     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1885     as_default="${cross_prefix}gcc"
1886     CC_DEPFLAGS='-MMD'
1887     AS_DEPFLAGS='-MMD'
1888     speed_cflags='-O3'
1889     size_cflags='-Os'
1890 elif $cc -version 2>/dev/null | grep -q TMS470; then
1891     cc_type=tms470
1892     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1893     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1894     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1895     CC_O='-fr=$(@D)'
1896     as_default="${cross_prefix}gcc"
1897     ld_default="${cross_prefix}gcc"
1898     TMPO=$(basename $TMPC .c).o
1899     append TMPFILES $TMPO
1900     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1901     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1902     AS_DEPFLAGS='-MMD'
1903     speed_cflags='-O3 -mf=5'
1904     size_cflags='-O3 -mf=2'
1905     filter_cflags=tms470_flags
1906     tms470_flags(){
1907         for flag; do
1908             case $flag in
1909                 -march=*|-mcpu=*)
1910                     case "${flag#*=}" in
1911                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1912                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1913                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1914                         armv6*|arm11*)          echo -mv=6   ;;
1915                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1916                                                 echo -mv=5e  ;;
1917                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1918                     esac
1919                     ;;
1920                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1921                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1922                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1923                 -msoft-float)   echo --float_support=vfplib       ;;
1924                 -O[0-3]|-mf=*)  echo $flag                        ;;
1925                 -g)             echo -g -mn                       ;;
1926                 -pds=*)         echo $flag                        ;;
1927             esac
1928         done
1929     }
1930 elif $cc -v 2>&1 | grep -q clang; then
1931     cc_type=clang
1932     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1933         cc_version=__clang_version__ || cc_version=__VERSION__
1934     cc_ident=$($cc --version | head -n1)
1935     CC_DEPFLAGS='-MMD'
1936     AS_DEPFLAGS='-MMD'
1937     speed_cflags='-O3'
1938     size_cflags='-Os'
1939 elif $cc -V 2>&1 | grep -q Sun; then
1940     cc_type=suncc
1941     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1942     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1943     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1944     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1945     speed_cflags='-O5'
1946     size_cflags='-O5 -xspace'
1947     filter_cflags=suncc_flags
1948     suncc_flags(){
1949         for flag; do
1950             case $flag in
1951                 -march=*|-mcpu=*)
1952                     case "${flag#*=}" in
1953                         native)                   echo -xtarget=native       ;;
1954                         v9|niagara)               echo -xarch=sparc          ;;
1955                         ultrasparc)               echo -xarch=sparcvis       ;;
1956                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1957                         i586|pentium)             echo -xchip=pentium        ;;
1958                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1959                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1960                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1961                         pentium4*)          echo -xtarget=pentium4           ;;
1962                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1963                         *-sse3)             echo -xarch=sse3                 ;;
1964                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1965                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1966                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1967                         k8|opteron|athlon64|athlon-fx)
1968                                                   echo -xarch=sse2a          ;;
1969                         athlon*)                  echo -xarch=pentium_proa   ;;
1970                     esac
1971                     ;;
1972                 -std=c99)             echo -xc99              ;;
1973                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1974                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1975                 -W*,*)                echo $flag              ;;
1976                 -f*-*|-W*)                                    ;;
1977                 *)                    echo $flag              ;;
1978             esac
1979         done
1980     }
1981 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1982     cc_type=pathscale
1983     cc_version=__PATHSCALE__
1984     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1985     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1986     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1987     speed_cflags='-O2'
1988     size_cflags='-Os'
1989 elif $cc -v 2>&1 | grep -q Open64; then
1990     cc_type=open64
1991     cc_version=__OPEN64__
1992     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1993     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1994     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1995     speed_cflags='-O2'
1996     size_cflags='-Os'
1997 fi
1998
1999 test -n "$cc_type" && enable $cc_type ||
2000     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2001
2002 : ${as_default:=$cc}
2003 : ${dep_cc_default:=$cc}
2004 : ${ld_default:=$cc}
2005 set_default ar as dep_cc ld
2006
2007 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2008 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2009
2010 add_cflags $extra_cflags
2011 add_asflags $extra_cflags
2012
2013 if test -n "$sysroot"; then
2014     case "$cc_type" in
2015         gcc|llvm_gcc)
2016             add_cppflags --sysroot="$sysroot"
2017             add_ldflags --sysroot="$sysroot"
2018         ;;
2019         tms470)
2020             add_cppflags -I"$sysinclude"
2021             add_ldflags  --sysroot="$sysroot"
2022         ;;
2023         clang)
2024             add_cppflags -isysroot "$sysroot"
2025             add_ldflags -isysroot "$sysroot"
2026         ;;
2027     esac
2028 fi
2029
2030 if test "$cpu" = host; then
2031     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2032
2033     case "$cc_type" in
2034         gcc|llvm_gcc)
2035             check_native(){
2036                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2037                 sed -n "/$1=/{
2038                             s/.*$1=\\([^ ]*\\).*/\\1/
2039                             p
2040                             q
2041                         }" $TMPE
2042             }
2043             cpu=$(check_native -march || check_native -mcpu)
2044         ;;
2045     esac
2046
2047     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2048 fi
2049
2050 # Deal with common $arch aliases
2051 case "$arch" in
2052     arm*)
2053         arch="arm"
2054     ;;
2055     mips|mipsel|IP*)
2056         arch="mips"
2057     ;;
2058     mips64*)
2059         arch="mips"
2060         subarch="mips64"
2061     ;;
2062     parisc|hppa)
2063         arch="parisc"
2064     ;;
2065     parisc64|hppa64)
2066         arch="parisc"
2067         subarch="parisc64"
2068     ;;
2069     "Power Macintosh"|ppc|powerpc)
2070         arch="ppc"
2071     ;;
2072     ppc64|powerpc64)
2073         arch="ppc"
2074         subarch="ppc64"
2075     ;;
2076     s390|s390x)
2077         arch="s390"
2078     ;;
2079     sh4|sh)
2080         arch="sh4"
2081     ;;
2082     sun4u|sparc64)
2083         arch="sparc"
2084         subarch="sparc64"
2085     ;;
2086     i[3-6]86|i86pc|BePC|x86_64|amd64)
2087         arch="x86"
2088     ;;
2089 esac
2090
2091 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2092 enable $arch
2093
2094 # Add processor-specific flags
2095 if test "$cpu" = generic; then
2096     : do nothing
2097 elif enabled ppc; then
2098
2099     case $(tolower $cpu) in
2100         601|ppc601|powerpc601)
2101             cpuflags="-mcpu=601"
2102             disable altivec
2103         ;;
2104         603*|ppc603*|powerpc603*)
2105             cpuflags="-mcpu=603"
2106             disable altivec
2107         ;;
2108         604*|ppc604*|powerpc604*)
2109             cpuflags="-mcpu=604"
2110             disable altivec
2111         ;;
2112         g3|75*|ppc75*|powerpc75*)
2113             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2114             disable altivec
2115         ;;
2116         g4|745*|ppc745*|powerpc745*)
2117             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2118         ;;
2119         74*|ppc74*|powerpc74*)
2120             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2121         ;;
2122         g5|970|ppc970|powerpc970|power4*)
2123             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2124         ;;
2125         cell)
2126             cpuflags="-mcpu=cell"
2127             enable ldbrx
2128         ;;
2129         e500v2)
2130             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2131             disable altivec
2132         ;;
2133         e500)
2134             cpuflags="-mcpu=8540 -mhard-float"
2135             disable altivec
2136         ;;
2137     esac
2138
2139 elif enabled x86; then
2140
2141     case $cpu in
2142         i[345]86|pentium)
2143             cpuflags="-march=$cpu"
2144             disable mmx
2145         ;;
2146         # targets that do NOT support conditional mov (cmov)
2147         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2148             cpuflags="-march=$cpu"
2149             disable cmov
2150         ;;
2151         # targets that do support conditional mov (cmov)
2152         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2153             cpuflags="-march=$cpu"
2154             enable cmov
2155             enable fast_cmov
2156         ;;
2157         # targets that do support conditional mov but on which it's slow
2158         pentium4|pentium4m|prescott|nocona)
2159             cpuflags="-march=$cpu"
2160             enable cmov
2161             disable fast_cmov
2162         ;;
2163     esac
2164
2165 elif enabled sparc; then
2166
2167     case $cpu in
2168         niagara)
2169             cpuflags="-mcpu=$cpu"
2170             disable vis
2171         ;;
2172         sparc64)
2173             cpuflags="-mcpu=v9"
2174         ;;
2175     esac
2176
2177 elif enabled arm; then
2178
2179     case $cpu in
2180         armv*)
2181             cpuflags="-march=$cpu"
2182             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2183         ;;
2184         *)
2185             cpuflags="-mcpu=$cpu"
2186             case $cpu in
2187                 cortex-a*)                               subarch=armv7a  ;;
2188                 cortex-r*)                               subarch=armv7r  ;;
2189                 cortex-m*)                               subarch=armv7m  ;;
2190                 arm11*)                                  subarch=armv6   ;;
2191                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2192                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2193             esac
2194         ;;
2195     esac
2196
2197 elif enabled alpha; then
2198
2199     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2200
2201 elif enabled bfin; then
2202
2203     cpuflags="-mcpu=$cpu"
2204
2205 elif enabled mips; then
2206
2207     cpuflags="-march=$cpu"
2208
2209 elif enabled avr32; then
2210
2211     case $cpu in
2212         ap7[02]0[0-2])
2213             subarch="avr32_ap"
2214             cpuflags="-mpart=$cpu"
2215         ;;
2216         ap)
2217             subarch="avr32_ap"
2218             cpuflags="-march=$cpu"
2219         ;;
2220         uc3[ab]*)
2221             subarch="avr32_uc"
2222             cpuflags="-mcpu=$cpu"
2223         ;;
2224         uc)
2225             subarch="avr32_uc"
2226             cpuflags="-march=$cpu"
2227         ;;
2228     esac
2229
2230 fi
2231
2232 add_cflags $cpuflags
2233 add_asflags $cpuflags
2234
2235 # compiler sanity check
2236 check_exec <<EOF
2237 int main(void){ return 0; }
2238 EOF
2239 if test "$?" != 0; then
2240     echo "$cc is unable to create an executable file."
2241     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2242         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2243         echo "Only do this if you know what cross compiling means."
2244     fi
2245     die "C compiler test failed."
2246 fi
2247
2248 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2249 check_cflags -std=c99
2250 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2251 #include <stdlib.h>
2252 EOF
2253 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2254 #include <stdlib.h>
2255 EOF
2256
2257 check_host_cflags -std=c99
2258
2259 case "$arch" in
2260     alpha|ia64|mips|parisc|sparc)
2261         spic=$shared
2262     ;;
2263     x86)
2264         subarch="x86_32"
2265         check_cc <<EOF && subarch="x86_64"
2266         int test[(int)sizeof(char*) - 7];
2267 EOF
2268         if test "$subarch" = "x86_64"; then
2269             spic=$shared
2270         fi
2271     ;;
2272 esac
2273
2274 enable $subarch
2275 enabled spic && enable pic
2276
2277 # OS specific
2278 case $target_os in
2279     haiku)
2280         prefix_default="/boot/common"
2281         network_extralibs="-lnetwork"
2282         ;;
2283     sunos)
2284         FFSERVERLDFLAGS=""
2285         SHFLAGS='-shared -Wl,-h,$$(@F)'
2286         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2287         network_extralibs="-lsocket -lnsl"
2288         add_cppflags -D__EXTENSIONS__
2289         nm_opts='-P -g'
2290         ;;
2291     netbsd)
2292         oss_indev_extralibs="-lossaudio"
2293         oss_outdev_extralibs="-lossaudio"
2294         add_cppflags -D_XOPEN_SOURCE=600
2295         ;;
2296     openbsd)
2297         enable malloc_aligned
2298         # On OpenBSD 4.5. the compiler does not use PIC unless
2299         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2300         # however the generated executable will not do anything
2301         # (simply quits with exit-code 1, no crash, no output).
2302         # Thus explicitly enable PIC here.
2303         enable pic
2304         SHFLAGS='-shared'
2305         oss_indev_extralibs="-lossaudio"
2306         oss_outdev_extralibs="-lossaudio"
2307         ;;
2308     freebsd|dragonfly)
2309         enable malloc_aligned
2310         ;;
2311     bsd/os)
2312         add_extralibs -lpoll -lgnugetopt
2313         strip="strip -d"
2314         ;;
2315     darwin)
2316         enable malloc_aligned
2317         gas="gas-preprocessor.pl $cc"
2318         enabled ppc && add_asflags -force_cpusubtype_ALL
2319         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2320         strip="${strip} -x"
2321         add_ldflags -Wl,-dynamic,-search_paths_first
2322         SLIBSUF=".dylib"
2323         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2324         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2325         FFSERVERLDFLAGS=-Wl,-bind_at_load
2326         objformat="macho"
2327         enabled x86_64 && objformat="macho64"
2328         enabled_any pic shared ||
2329             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2330         ;;
2331     mingw32*)
2332         if test $target_os = "mingw32ce"; then
2333             disable network
2334         else
2335             target_os=mingw32
2336         fi
2337         LIBTARGET=i386
2338         if enabled x86_64; then
2339             enable malloc_aligned
2340             LIBTARGET=x64
2341         elif enabled arm; then
2342             LIBTARGET=arm
2343         fi
2344         shlibdir_default="$bindir_default"
2345         disable ffserver
2346         SLIBPREF=""
2347         SLIBSUF=".dll"
2348         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2349         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2350         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2351         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2352             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2353             install -d "$(LIBDIR)"; \
2354             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2355         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2356         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'
2357         objformat="win32"
2358         enable dos_paths
2359         check_cflags -fno-common
2360         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2361                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2362                 die "ERROR: MinGW runtime version must be >= 3.15."
2363         ;;
2364     cygwin*)
2365         target_os=cygwin
2366         shlibdir_default="$bindir_default"
2367         SLIBPREF="cyg"
2368         SLIBSUF=".dll"
2369         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2370         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2371         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2372         objformat="win32"
2373         enable dos_paths
2374         check_cflags -fno-common
2375         ;;
2376     *-dos|freedos|opendos)
2377         disable ffplay ffserver
2378         disable $INDEV_LIST $OUTDEV_LIST
2379         network_extralibs="-lsocket"
2380         objformat="coff"
2381         enable dos_paths
2382         ;;
2383     linux)
2384         enable dv1394
2385         ;;
2386     irix*)
2387         target_os=irix
2388         ranlib="echo ignoring ranlib"
2389         ;;
2390     os/2*)
2391         strip="lxlite"
2392         ln_s="cp -f"
2393         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2394         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2395         FFSERVERLDFLAGS=""
2396         LIBSUF="_s.a"
2397         SLIBPREF=""
2398         SLIBSUF=".dll"
2399         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2400         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2401         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2402           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2403           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2404           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2405           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2406           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2407         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2408           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2409         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2410         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2411         enable dos_paths
2412         ;;
2413     gnu/kfreebsd)
2414         ;;
2415     gnu)
2416         ;;
2417     none)
2418         ;;
2419     *)
2420         die "Unknown OS '$target_os'."
2421         ;;
2422 esac
2423
2424 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2425
2426 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2427
2428 set_default $PATHS_LIST
2429
2430 # we need to build at least one lib type
2431 if ! enabled_any static shared; then
2432     cat <<EOF
2433 At least one library type must be built.
2434 Specify --enable-static to build the static libraries or --enable-shared to
2435 build the shared libraries as well. To only build the shared libraries specify
2436 --disable-static in addition to --enable-shared.
2437 EOF
2438     exit 1;
2439 fi
2440
2441 disabled static && LIBNAME=""
2442
2443 die_license_disabled() {
2444     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2445 }
2446
2447 die_license_disabled gpl libx264
2448 die_license_disabled gpl libxavs
2449 die_license_disabled gpl libxvid
2450 die_license_disabled gpl postproc
2451 die_license_disabled gpl x11grab
2452
2453 die_license_disabled nonfree libfaac
2454
2455 die_license_disabled version3 libopencore_amrnb
2456 die_license_disabled version3 libopencore_amrwb
2457
2458 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2459
2460 check_deps $ARCH_EXT_LIST
2461
2462 disabled optimizations || check_cflags -fomit-frame-pointer
2463
2464 enable_pic() {
2465     enable pic
2466     add_cppflags -DPIC
2467     add_cflags   -fPIC
2468     add_asflags  -fPIC
2469 }
2470
2471 enabled pic && enable_pic
2472
2473 check_cc <<EOF || die "Symbol mangling check failed."
2474 int ff_extern;
2475 EOF
2476 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2477 extern_prefix=${sym%%ff_extern*}
2478
2479 check_cc <<EOF && enable inline_asm
2480 void foo(void) { __asm__ volatile ("" ::); }
2481 EOF
2482
2483 _restrict=
2484 for restrict_keyword in restrict __restrict__ __restrict; do
2485     check_cc <<EOF && _restrict=$restrict_keyword && break
2486 void foo(char * $restrict_keyword p);
2487 EOF
2488 done
2489
2490 check_cc <<EOF && enable attribute_packed
2491 struct { int x; } __attribute__((packed)) x;
2492 EOF
2493
2494 check_cc <<EOF && enable attribute_may_alias
2495 union { int x; } __attribute__((may_alias)) x;
2496 EOF
2497
2498 check_cc <<EOF || die "endian test failed"
2499 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2500 EOF
2501 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2502
2503 if enabled alpha; then
2504
2505     check_cflags -mieee
2506
2507 elif enabled arm; then
2508
2509     check_cflags -marm
2510     nogas=die
2511
2512     check_ld <<EOF && enable vfp_args
2513 __asm__ (".eabi_attribute 28, 1");
2514 int main(void) { return 0; }
2515 EOF
2516
2517     # We have to check if pld is a nop and disable it.
2518     check_asm pld '"pld [r0]"'
2519
2520     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2521     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2522     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2523     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2524     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2525     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2526
2527     enabled_all armv6t2 shared !pic && enable_pic
2528
2529 elif enabled mips; then
2530
2531     check_asm loongson '"dmult.g $1, $2, $3"'
2532     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2533
2534 elif enabled ppc; then
2535
2536     enable local_aligned_8 local_aligned_16
2537
2538     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2539     check_asm ibm_asm   '"add 0, 0, 0"'
2540     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2541     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2542
2543     # AltiVec flags: The FSF version of GCC differs from the Apple version
2544     if enabled altivec; then
2545         nogas=warn
2546         check_cflags -maltivec -mabi=altivec &&
2547         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2548         check_cflags -faltivec
2549
2550         # check if our compiler supports Motorola AltiVec C API
2551         check_cc <<EOF || disable altivec
2552 $inc_altivec_h
2553 int main(void) {
2554     vector signed int v1, v2, v3;
2555     v1 = vec_add(v2,v3);
2556     return 0;
2557 }
2558 EOF
2559
2560         # check if our compiler supports braces for vector declarations
2561         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2562 $inc_altivec_h
2563 int main (void) { (vector int) {1}; return 0; }
2564 EOF
2565     fi
2566
2567 elif enabled sparc; then
2568
2569     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2570         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2571
2572 elif enabled x86; then
2573
2574     enable local_aligned_8 local_aligned_16
2575
2576     # check whether EBP is available on x86
2577     # As 'i' is stored on the stack, this program will crash
2578     # if the base pointer is used to access it because the
2579     # base pointer is cleared in the inline assembly code.
2580     check_exec_crash <<EOF && enable ebp_available
2581     volatile int i=0;
2582     __asm__ volatile (
2583         "xorl %%ebp, %%ebp"
2584     ::: "%ebp");
2585     return i;
2586 EOF
2587
2588     # check whether EBX is available on x86
2589     check_asm ebx_available '""::"b"(0)' &&
2590         check_asm ebx_available '"":::"%ebx"'
2591
2592     # check whether more than 10 operands are supported
2593     check_cc <<EOF && enable ten_operands
2594 int main(void) {
2595     int x=0;
2596     __asm__ volatile(
2597         ""
2598         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2599     );
2600     return 0;
2601 }
2602 EOF
2603
2604     # check whether binutils is new enough to compile SSSE3/MMX2
2605     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2606     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2607
2608     check_asm bswap '"bswap %%eax" ::: "%eax"'
2609
2610     if ! disabled_any asm mmx yasm; then
2611         if check_cmd $yasmexe --version; then
2612             enabled x86_64 && yasm_extra="-m amd64"
2613             yasm_debug="-g dwarf2"
2614         elif check_cmd nasm -v; then
2615             yasmexe=nasm
2616             yasm_debug="-g -F dwarf"
2617             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2618         fi
2619
2620         YASMFLAGS="-f $objformat $yasm_extra"
2621         enabled pic               && append YASMFLAGS "-DPIC"
2622         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2623         case "$objformat" in
2624             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2625         esac
2626
2627         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2628             die "yasm not found, use --disable-yasm for a crippled build"
2629     fi
2630
2631     case "$cpu" in
2632         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2633             disable fast_clz
2634         ;;
2635     esac
2636
2637 fi
2638
2639 if enabled asm; then
2640     as=${gas:=$as}
2641     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2642         $nogas "GNU assembler not found, install gas-preprocessor"
2643 fi
2644
2645 if check_func dlopen; then
2646     ldl=
2647 elif check_func dlopen -ldl; then
2648     ldl=-ldl
2649 fi
2650
2651 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2652 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2653
2654 check_func  fcntl
2655 check_func  fork
2656 check_func  getaddrinfo $network_extralibs
2657 check_func  gethrtime
2658 check_func  getrusage
2659 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2660 check_func  inet_aton $network_extralibs
2661 check_func  isatty
2662 check_func  ${malloc_prefix}memalign            && enable memalign
2663 check_func  mkstemp
2664 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2665 check_func  setrlimit
2666 check_func  strerror_r
2667 check_func  strtok_r
2668 check_func_headers io.h setmode
2669 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2670 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2671 check_func_headers windows.h GetProcessTimes
2672 check_func_headers windows.h VirtualAlloc
2673
2674 check_header conio.h
2675 check_header dlfcn.h
2676 check_header dxva2api.h
2677 check_header malloc.h
2678 check_header poll.h
2679 check_header sys/mman.h
2680 check_header sys/resource.h
2681 check_header sys/select.h
2682 check_header termios.h
2683 check_header vdpau/vdpau.h
2684 check_header vdpau/vdpau_x11.h
2685 check_header X11/extensions/XvMClib.h
2686
2687 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2688
2689 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2690      enabled_any $need_memalign ; then
2691     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2692 fi
2693
2694 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2695 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2696
2697 # check for some common methods of building with pthread support
2698 # do this before the optional library checks as some of them require pthreads
2699 if ! disabled pthreads && ! enabled w32threads; then
2700     enable pthreads
2701     if check_func pthread_create; then
2702         :
2703     elif check_func pthread_create -pthread; then
2704         add_cflags -pthread
2705         add_extralibs -pthread
2706     elif check_func pthread_create -pthreads; then
2707         add_cflags -pthreads
2708         add_extralibs -pthreads
2709     elif check_func pthread_create -lpthreadGC2; then
2710         add_extralibs -lpthreadGC2
2711     elif ! check_lib pthread.h pthread_create -lpthread; then
2712         disable pthreads
2713     fi
2714 fi
2715
2716 for thread in $THREADS_LIST; do
2717     if enabled $thread; then
2718         test -n "$thread_type" &&
2719             die "ERROR: Only one thread type must be selected." ||
2720             thread_type="$thread"
2721     fi
2722 done
2723
2724 check_lib math.h sin -lm
2725 disabled vaapi || check_lib va/va.h vaInitialize -lva
2726
2727 check_mathfunc exp2
2728 check_mathfunc exp2f
2729 check_mathfunc llrint
2730 check_mathfunc llrintf
2731 check_mathfunc log2
2732 check_mathfunc log2f
2733 check_mathfunc lrint
2734 check_mathfunc lrintf
2735 check_mathfunc round
2736 check_mathfunc roundf
2737 check_mathfunc truncf
2738
2739 # these are off by default, so fail if requested and not available
2740 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2741 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2742 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2743                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2744                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2745 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2746 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2747 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h hip_decode_init -lmp3lame
2748 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2749 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2750 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2751 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2752                         die "ERROR: libopencv not found"; }
2753 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2754 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2755                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2756 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2757                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2758 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2759 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2760 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2761 enabled libvpx     && {
2762     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2763                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2764     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2765                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2766 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2767                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2768                         die "ERROR: libx264 version must be >= 0.98."; }
2769 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2770 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2771 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2772
2773 # libdc1394 check
2774 if enabled libdc1394; then
2775     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2776         enable libdc1394_2; } ||
2777     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2778         enable libdc1394_1; } ||
2779     die "ERROR: No version of libdc1394 found "
2780 fi
2781
2782 SDL_CONFIG="${cross_prefix}sdl-config"
2783 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2784     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2785     sdl_libs=$("${SDL_CONFIG}" --libs)
2786     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2787     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2788     enable sdl &&
2789     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2790 fi
2791
2792 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2793
2794 if enabled network; then
2795     check_type "sys/types.h sys/socket.h" socklen_t
2796     check_type netdb.h "struct addrinfo"
2797     check_type netinet/in.h "struct ipv6_mreq"
2798     check_type netinet/in.h "struct sockaddr_in6"
2799     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2800     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2801     # Prefer arpa/inet.h over winsock2
2802     if check_header arpa/inet.h ; then
2803         check_func closesocket
2804     elif check_header winsock2.h ; then
2805         check_func_headers winsock2.h closesocket -lws2 && \
2806             network_extralibs="-lws2" || \
2807         { check_func_headers winsock2.h closesocket -lws2_32 && \
2808             network_extralibs="-lws2_32"; }
2809         check_type ws2tcpip.h socklen_t
2810         check_type ws2tcpip.h "struct addrinfo"
2811         check_type ws2tcpip.h "struct ipv6_mreq"
2812         check_type ws2tcpip.h "struct sockaddr_in6"
2813         check_type ws2tcpip.h "struct sockaddr_storage"
2814         check_struct winsock2.h "struct sockaddr" sa_len
2815     else
2816         disable network
2817     fi
2818 fi
2819
2820 check_header linux/videodev.h
2821 check_header linux/videodev2.h
2822 check_header sys/videoio.h
2823
2824 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2825 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2826 # w32api 3.12 had it defined wrong
2827 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2828
2829 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2830 { check_header dev/bktr/ioctl_meteor.h &&
2831   check_header dev/bktr/ioctl_bt848.h; } ||
2832 { check_header machine/ioctl_meteor.h &&
2833   check_header machine/ioctl_bt848.h; } ||
2834 { check_header dev/video/meteor/ioctl_meteor.h &&
2835   check_header dev/video/bktr/ioctl_bt848.h; } ||
2836 check_header dev/ic/bt8xx.h
2837
2838 check_header sys/soundcard.h
2839 check_header soundcard.h
2840
2841 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2842
2843 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2844
2845 enabled x11grab                         &&
2846 check_header X11/Xlib.h                 &&
2847 check_header X11/extensions/XShm.h      &&
2848 check_header X11/extensions/Xfixes.h    &&
2849 check_func XOpenDisplay -lX11           &&
2850 check_func XShmCreateImage -lX11 -lXext &&
2851 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2852
2853 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2854 check_cpp_condition \
2855     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2856     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2857       disable vdpau; }
2858 fi
2859
2860 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2861
2862 # add some useful compiler flags if supported
2863 check_cflags -Wdeclaration-after-statement
2864 check_cflags -Wall
2865 check_cflags -Wno-parentheses
2866 check_cflags -Wno-switch
2867 check_cflags -Wdisabled-optimization
2868 check_cflags -Wpointer-arith
2869 check_cflags -Wredundant-decls
2870 check_cflags -Wno-pointer-sign
2871 check_cflags -Wcast-qual
2872 check_cflags -Wwrite-strings
2873 check_cflags -Wtype-limits
2874 check_cflags -Wundef
2875 check_cflags -Wmissing-prototypes
2876 enabled extra_warnings && check_cflags -Winline
2877
2878 # add some linker flags
2879 check_ldflags -Wl,--warn-common
2880 check_ldflags -Wl,--as-needed
2881 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'
2882 check_ldflags -Wl,-Bsymbolic
2883
2884 echo "X{};" > $TMPV
2885 if test_ldflags -Wl,--version-script,$TMPV; then
2886     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2887     check_cc <<EOF && enable symver_asm_label
2888 void ff_foo(void) __asm__ ("av_foo@VERSION");
2889 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2890 EOF
2891     check_cc <<EOF && enable symver_gnu_asm
2892 __asm__(".symver ff_foo,av_foo@VERSION");
2893 void ff_foo(void) {}
2894 EOF
2895 fi
2896
2897 if enabled small; then
2898     add_cflags $size_cflags
2899     optimizations="small"
2900 elif enabled optimizations; then
2901     add_cflags $speed_cflags
2902 else
2903     add_cflags $noopt_cflags
2904 fi
2905 check_cflags -fno-math-errno
2906 check_cflags -fno-signed-zeros
2907
2908 if enabled icc; then
2909     # Just warnings, no remarks
2910     check_cflags -w1
2911     # -wd: Disable following warnings
2912     # 144, 167, 556: -Wno-pointer-sign
2913     # 10006: ignoring unknown option -fno-signed-zeros
2914     # 10156: ignoring option '-W'; no argument required
2915     check_cflags -wd144,167,556,10006,10156
2916     # 11030: Warning unknown option --as-needed
2917     # 10156: ignoring option '-export'; no argument required
2918     check_ldflags -wd10156,11030
2919     # Allow to compile with optimizations
2920     check_ldflags -march=$cpu
2921     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2922     enable ebp_available
2923     if enabled x86_32; then
2924         test ${icc_version%%.*} -ge 11 && \
2925             check_cflags -falign-stack=maintain-16-byte || \
2926             disable aligned_stack
2927     fi
2928 elif enabled ccc; then
2929     # disable some annoying warnings
2930     add_cflags -msg_disable cvtu32to64
2931     add_cflags -msg_disable embedcomment
2932     add_cflags -msg_disable needconstext
2933     add_cflags -msg_disable nomainieee
2934     add_cflags -msg_disable ptrmismatch1
2935     add_cflags -msg_disable unreachcode
2936 elif enabled gcc; then
2937     check_cflags -fno-tree-vectorize
2938     check_cflags -Werror=implicit-function-declaration
2939     check_cflags -Werror=missing-prototypes
2940 elif enabled llvm_gcc; then
2941     check_cflags -mllvm -stack-alignment=16
2942 elif enabled clang; then
2943     check_cflags -mllvm -stack-alignment=16
2944     check_cflags -Qunused-arguments
2945 elif enabled armcc; then
2946     # 2523: use of inline assembler is deprecated
2947     add_cflags -W${armcc_opt},--diag_suppress=2523
2948     add_cflags -W${armcc_opt},--diag_suppress=1207
2949 elif enabled tms470; then
2950     add_cflags -pds=824 -pds=837
2951 fi
2952
2953 enabled_any $THREADS_LIST      && enable threads
2954
2955 check_deps $CONFIG_LIST       \
2956            $CONFIG_EXTRA      \
2957            $HAVE_LIST         \
2958            $DECODER_LIST      \
2959            $ENCODER_LIST      \
2960            $HWACCEL_LIST      \
2961            $PARSER_LIST       \
2962            $BSF_LIST          \
2963            $DEMUXER_LIST      \
2964            $MUXER_LIST        \
2965            $FILTER_LIST       \
2966            $INDEV_LIST        \
2967            $OUTDEV_LIST       \
2968            $PROTOCOL_LIST     \
2969            $ACODEC_TESTS      \
2970            $VCODEC_TESTS      \
2971            $LAVF_TESTS        \
2972            $LAVFI_TESTS       \
2973            $SEEK_TESTS        \
2974
2975 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2976
2977 echo "install prefix            $prefix"
2978 echo "source path               $source_path"
2979 echo "C compiler                $cc"
2980 echo "ARCH                      $arch ($cpu)"
2981 if test "$build_suffix" != ""; then
2982     echo "build suffix              $build_suffix"
2983 fi
2984 if test "$extra_version" != ""; then
2985     echo "version string suffix     $extra_version"
2986 fi
2987 echo "big-endian                ${bigendian-no}"
2988 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2989 if enabled x86; then
2990     echo "yasm                      ${yasm-no}"
2991     echo "MMX enabled               ${mmx-no}"
2992     echo "MMX2 enabled              ${mmx2-no}"
2993     echo "3DNow! enabled            ${amd3dnow-no}"
2994     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2995     echo "SSE enabled               ${sse-no}"
2996     echo "SSSE3 enabled             ${ssse3-no}"
2997     echo "CMOV enabled              ${cmov-no}"
2998     echo "CMOV is fast              ${fast_cmov-no}"
2999     echo "EBX available             ${ebx_available-no}"
3000     echo "EBP available             ${ebp_available-no}"
3001     echo "10 operands supported     ${ten_operands-no}"
3002 fi
3003 if enabled arm; then
3004     echo "ARMv5TE enabled           ${armv5te-no}"
3005     echo "ARMv6 enabled             ${armv6-no}"
3006     echo "ARMv6T2 enabled           ${armv6t2-no}"
3007     echo "ARM VFP enabled           ${armvfp-no}"
3008     echo "IWMMXT enabled            ${iwmmxt-no}"
3009     echo "NEON enabled              ${neon-no}"
3010 fi
3011 if enabled mips; then
3012     echo "MMI enabled               ${mmi-no}"
3013 fi
3014 if enabled ppc; then
3015     echo "AltiVec enabled           ${altivec-no}"
3016     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3017     echo "dcbzl available           ${dcbzl-no}"
3018 fi
3019 if enabled sparc; then
3020     echo "VIS enabled               ${vis-no}"
3021 fi
3022 echo "debug symbols             ${debug-no}"
3023 echo "strip symbols             ${stripping-no}"
3024 echo "optimizations             ${optimizations-no}"
3025 echo "static                    ${static-no}"
3026 echo "shared                    ${shared-no}"
3027 echo "postprocessing support    ${postproc-no}"
3028 echo "new filter support        ${avfilter-no}"
3029 echo "network support           ${network-no}"
3030 echo "threading support         ${thread_type-no}"
3031 echo "SDL support               ${sdl-no}"
3032 echo "Sun medialib support      ${mlib-no}"
3033 echo "AVISynth enabled          ${avisynth-no}"
3034 echo "frei0r enabled            ${frei0r-no}"
3035 echo "libdc1394 support         ${libdc1394-no}"
3036 echo "libdirac enabled          ${libdirac-no}"
3037 echo "libfaac enabled           ${libfaac-no}"
3038 echo "libgsm enabled            ${libgsm-no}"
3039 echo "libmp3lame enabled        ${libmp3lame-no}"
3040 echo "libnut enabled            ${libnut-no}"
3041 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3042 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3043 echo "libopencv support         ${libopencv-no}"
3044 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3045 echo "librtmp enabled           ${librtmp-no}"
3046 echo "libschroedinger enabled   ${libschroedinger-no}"
3047 echo "libspeex enabled          ${libspeex-no}"
3048 echo "libtheora enabled         ${libtheora-no}"
3049 echo "libvorbis enabled         ${libvorbis-no}"
3050 echo "libvpx enabled            ${libvpx-no}"
3051 echo "libx264 enabled           ${libx264-no}"
3052 echo "libxavs enabled           ${libxavs-no}"
3053 echo "libxvid enabled           ${libxvid-no}"
3054 echo "zlib enabled              ${zlib-no}"
3055 echo "bzlib enabled             ${bzlib-no}"
3056 echo
3057
3058 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3059     echo "Enabled ${type}s:"
3060     eval list=\$$(toupper $type)_LIST
3061     print_enabled '_*' $list | sort | pr -3 -t
3062     echo
3063 done
3064
3065 license="LGPL version 2.1 or later"
3066 if enabled nonfree; then
3067     license="nonfree and unredistributable"
3068 elif enabled gplv3; then
3069     license="GPL version 3 or later"
3070 elif enabled lgplv3; then
3071     license="LGPL version 3 or later"
3072 elif enabled gpl; then
3073     license="GPL version 2 or later"
3074 fi
3075
3076 echo "License: $license"
3077
3078 echo "Creating config.mak and config.h..."
3079
3080 # build tree in object directory if source path is different from current one
3081 if enabled source_path_used; then
3082     DIRS="
3083         doc
3084         libavcodec
3085         libavcodec/$arch
3086         libavcore
3087         libavdevice
3088         libavfilter
3089         libavfilter/$arch
3090         libavformat
3091         libavutil
3092         libavutil/$arch
3093         libpostproc
3094         libswscale
3095         libswscale/$arch
3096         tests
3097         tools
3098     "
3099     FILES="
3100         Makefile
3101         common.mak
3102         subdir.mak
3103         doc/texi2pod.pl
3104         libavcodec/Makefile
3105         libavcodec/${arch}/Makefile
3106         libavcore/Makefile
3107         libavdevice/Makefile
3108         libavfilter/Makefile
3109         libavformat/Makefile
3110         libavutil/Makefile
3111         libpostproc/Makefile
3112         libswscale/Makefile
3113     "
3114     map 'mkdir -p $v' $DIRS;
3115     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3116 fi
3117
3118 enabled stripping || strip="echo skipping strip"
3119
3120 config_files="$TMPH config.mak"
3121
3122 cat > config.mak <<EOF
3123 # Automatically generated by configure - do not modify!
3124 ifndef FFMPEG_CONFIG_MAK
3125 FFMPEG_CONFIG_MAK=1
3126 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3127 prefix=$prefix
3128 LIBDIR=\$(DESTDIR)$libdir
3129 SHLIBDIR=\$(DESTDIR)$shlibdir
3130 INCDIR=\$(DESTDIR)$incdir
3131 BINDIR=\$(DESTDIR)$bindir
3132 DATADIR=\$(DESTDIR)$datadir
3133 MANDIR=\$(DESTDIR)$mandir
3134 SRC_PATH="$source_path"
3135 SRC_PATH_BARE=$source_path
3136 BUILD_ROOT="$PWD"
3137 CC_IDENT=$cc_ident
3138 ARCH=$arch
3139 CC=$cc
3140 AS=$as
3141 LD=$ld
3142 DEPCC=$dep_cc
3143 YASM=$yasmexe
3144 YASMDEP=$yasmexe
3145 AR=$ar
3146 RANLIB=$ranlib
3147 CP=cp -p
3148 LN_S=$ln_s
3149 STRIP=$strip
3150 CPPFLAGS=$CPPFLAGS
3151 CFLAGS=$CFLAGS
3152 ASFLAGS=$ASFLAGS
3153 CC_O=$CC_O
3154 LDFLAGS=$LDFLAGS
3155 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3156 SHFLAGS=$SHFLAGS
3157 YASMFLAGS=$YASMFLAGS
3158 BUILDSUF=$build_suffix
3159 FULLNAME=$FULLNAME
3160 LIBPREF=$LIBPREF
3161 LIBSUF=$LIBSUF
3162 LIBNAME=$LIBNAME
3163 SLIBPREF=$SLIBPREF
3164 SLIBSUF=$SLIBSUF
3165 EXESUF=$EXESUF
3166 EXTRA_VERSION=$extra_version
3167 DEPFLAGS=$DEPFLAGS
3168 CCDEP=$CCDEP
3169 ASDEP=$ASDEP
3170 CC_DEPFLAGS=$CC_DEPFLAGS
3171 AS_DEPFLAGS=$AS_DEPFLAGS
3172 HOSTCC=$host_cc
3173 HOSTCFLAGS=$host_cflags
3174 HOSTEXESUF=$HOSTEXESUF
3175 HOSTLDFLAGS=$host_ldflags
3176 HOSTLIBS=$host_libs
3177 TARGET_EXEC=$target_exec
3178 TARGET_PATH=$target_path
3179 SDL_LIBS=$sdl_libs
3180 SDL_CFLAGS=$sdl_cflags
3181 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3182 EXTRALIBS=$extralibs
3183 INSTALL=install
3184 LIBTARGET=${LIBTARGET}
3185 SLIBNAME=${SLIBNAME}
3186 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3187 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3188 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3189 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3190 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3191 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3192 SAMPLES=$samples
3193 EOF
3194
3195 get_version(){
3196     name=$1
3197     file=$source_path/$2
3198     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3199     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3200     lcname=$(tolower $name)
3201     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3202     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3203 }
3204
3205 get_version LIBSWSCALE  libswscale/swscale.h
3206 get_version LIBPOSTPROC libpostproc/postprocess.h
3207 get_version LIBAVCODEC  libavcodec/avcodec.h
3208 get_version LIBAVCORE   libavcore/avcore.h
3209 get_version LIBAVDEVICE libavdevice/avdevice.h
3210 get_version LIBAVFORMAT libavformat/avformat.h
3211 get_version LIBAVUTIL   libavutil/avutil.h
3212 get_version LIBAVFILTER libavfilter/avfilter.h
3213
3214 cat > $TMPH <<EOF
3215 /* Automatically generated by configure - do not modify! */
3216 #ifndef FFMPEG_CONFIG_H
3217 #define FFMPEG_CONFIG_H
3218 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3219 #define FFMPEG_LICENSE "$(c_escape $license)"
3220 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3221 #define CC_TYPE "$cc_type"
3222 #define CC_VERSION $cc_version
3223 #define restrict $_restrict
3224 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3225 #define EXTERN_PREFIX "${extern_prefix}"
3226 #define EXTERN_ASM ${extern_prefix}
3227 EOF
3228
3229 test -n "$malloc_prefix" &&
3230     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3231
3232 if enabled small || disabled optimizations; then
3233     echo "#undef  av_always_inline"  >> $TMPH
3234     echo "#define av_always_inline"  >> $TMPH
3235 fi
3236
3237 if enabled yasm; then
3238     append config_files $TMPASM
3239     printf '' >$TMPASM
3240 fi
3241
3242 print_config ARCH_   "$config_files" $ARCH_LIST
3243 print_config HAVE_   "$config_files" $HAVE_LIST
3244 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3245                                      $CONFIG_EXTRA      \
3246                                      $DECODER_LIST      \
3247                                      $ENCODER_LIST      \
3248                                      $HWACCEL_LIST      \
3249                                      $PARSER_LIST       \
3250                                      $BSF_LIST          \
3251                                      $DEMUXER_LIST      \
3252                                      $MUXER_LIST        \
3253                                      $FILTER_LIST       \
3254                                      $PROTOCOL_LIST     \
3255                                      $INDEV_LIST        \
3256                                      $OUTDEV_LIST       \
3257
3258 cat >>config.mak <<EOF
3259 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3260 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3261 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3262 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3263 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3264 EOF
3265
3266 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3267 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3268
3269 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3270 cp_if_changed $TMPH config.h
3271 touch .config
3272
3273 enabled yasm && cp_if_changed $TMPASM config.asm
3274
3275 cat > $TMPH <<EOF
3276 /* Generated by ffconf */
3277 #ifndef AVUTIL_AVCONFIG_H
3278 #define AVUTIL_AVCONFIG_H
3279 EOF
3280
3281 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3282
3283 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3284
3285 cp_if_changed $TMPH libavutil/avconfig.h
3286
3287 test -n "$WARNINGS" && printf "\n$WARNINGS"
3288
3289 # build pkg-config files
3290
3291 pkgconfig_generate(){
3292 name=$1
3293 shortname=${name#lib}${build_suffix}
3294 comment=$2
3295 version=$3
3296 libs=$4
3297 requires=$5
3298 enabled ${name#lib} || return 0
3299 cat <<EOF > $name/$name.pc
3300 prefix=$prefix
3301 exec_prefix=\${prefix}
3302 libdir=$libdir
3303 includedir=$incdir
3304
3305 Name: $name
3306 Description: $comment
3307 Version: $version
3308 Requires: $(enabled shared || echo $requires)
3309 Requires.private: $(enabled shared && echo $requires)
3310 Conflicts:
3311 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3312 Libs.private: $(enabled shared && echo $libs)
3313 Cflags: -I\${includedir}
3314 EOF
3315 cat <<EOF > $name/$name-uninstalled.pc
3316 prefix=
3317 exec_prefix=
3318 libdir=\${pcfiledir}
3319 includedir=${source_path}
3320
3321 Name: $name
3322 Description: $comment
3323 Version: $version
3324 Requires: $requires
3325 Conflicts:
3326 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3327 Cflags: -I\${includedir}
3328 EOF
3329 }
3330
3331 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3332 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3333 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3334 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3335 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3336 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3337 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3338 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"