Add a demuxer for receiving raw rtp:// URLs without an SDP description
[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     xmm_clobbers
1078     yasm
1079 "
1080
1081 # options emitted with CONFIG_ prefix but not available on command line
1082 CONFIG_EXTRA="
1083     avutil
1084     gplv3
1085     lgplv3
1086 "
1087
1088 CMDLINE_SELECT="
1089     $ARCH_EXT_LIST
1090     $CONFIG_LIST
1091     $THREADS_LIST
1092     asm
1093     cross_compile
1094     debug
1095     extra_warnings
1096     logging
1097     optimizations
1098     stripping
1099     yasm
1100 "
1101
1102 PATHS_LIST='
1103     bindir
1104     datadir
1105     incdir
1106     libdir
1107     mandir
1108     prefix
1109     shlibdir
1110 '
1111
1112 CMDLINE_SET="
1113     $PATHS_LIST
1114     ar
1115     arch
1116     as
1117     build_suffix
1118     cc
1119     cpu
1120     cross_prefix
1121     dep_cc
1122     extra_version
1123     host_cc
1124     host_cflags
1125     host_ldflags
1126     host_libs
1127     host_os
1128     ld
1129     logfile
1130     malloc_prefix
1131     nm
1132     samples
1133     source_path
1134     strip
1135     sysinclude
1136     sysroot
1137     target_exec
1138     target_os
1139     target_path
1140 "
1141
1142 CMDLINE_APPEND="
1143     extra_cflags
1144 "
1145
1146 # code dependency declarations
1147
1148 # architecture extensions
1149
1150 armv5te_deps="arm"
1151 armv6_deps="arm"
1152 armv6t2_deps="arm"
1153 armvfp_deps="arm"
1154 iwmmxt_deps="arm"
1155 neon_deps="arm"
1156
1157 mmi_deps="mips"
1158
1159 altivec_deps="ppc"
1160 ppc4xx_deps="ppc"
1161
1162 vis_deps="sparc"
1163
1164 x86_64_suggest="cmov fast_cmov"
1165 amd3dnow_deps="mmx"
1166 amd3dnowext_deps="amd3dnow"
1167 mmx_deps="x86"
1168 mmx2_deps="mmx"
1169 sse_deps="mmx"
1170 ssse3_deps="sse"
1171
1172 aligned_stack_if_any="ppc x86"
1173 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1174 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1175 fast_unaligned_if_any="armv6 ppc x86"
1176
1177 need_memalign="altivec neon sse"
1178 inline_asm_deps="!tms470"
1179
1180 symver_if_any="symver_asm_label symver_gnu_asm"
1181
1182 # subsystems
1183 dct_select="rdft"
1184 mdct_select="fft"
1185 rdft_select="fft"
1186
1187 # decoders / encoders / hardware accelerators
1188 aac_decoder_select="mdct rdft"
1189 aac_encoder_select="mdct"
1190 ac3_decoder_select="mdct ac3_parser"
1191 alac_encoder_select="lpc"
1192 amrnb_decoder_select="lsp"
1193 atrac1_decoder_select="mdct"
1194 atrac3_decoder_select="mdct"
1195 binkaudio_dct_decoder_select="mdct rdft dct"
1196 binkaudio_rdft_decoder_select="mdct rdft"
1197 cavs_decoder_select="golomb"
1198 cook_decoder_select="mdct"
1199 cscd_decoder_suggest="zlib"
1200 dca_decoder_select="mdct"
1201 dnxhd_encoder_select="aandct"
1202 dxa_decoder_select="zlib"
1203 eac3_decoder_select="ac3_decoder"
1204 eamad_decoder_select="aandct"
1205 eatgq_decoder_select="aandct"
1206 eatqi_decoder_select="aandct"
1207 ffv1_decoder_select="golomb"
1208 flac_decoder_select="golomb"
1209 flac_encoder_select="golomb lpc"
1210 flashsv_decoder_select="zlib"
1211 flashsv_encoder_select="zlib"
1212 flv_decoder_select="h263_decoder"
1213 flv_encoder_select="h263_encoder"
1214 fraps_decoder_select="huffman"
1215 h261_encoder_select="aandct"
1216 h263_decoder_select="h263_parser"
1217 h263_encoder_select="aandct"
1218 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1219 h263i_decoder_select="h263_decoder"
1220 h263p_encoder_select="h263_encoder"
1221 h264_decoder_select="golomb h264dsp h264pred"
1222 h264_dxva2_hwaccel_deps="dxva2api_h"
1223 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1224 h264_vaapi_hwaccel_select="vaapi"
1225 h264_vdpau_decoder_select="vdpau h264_decoder"
1226 imc_decoder_select="fft mdct"
1227 jpegls_decoder_select="golomb"
1228 jpegls_encoder_select="golomb"
1229 ljpeg_encoder_select="aandct"
1230 loco_decoder_select="golomb"
1231 mjpeg_encoder_select="aandct"
1232 mlp_decoder_select="mlp_parser"
1233 mp1float_decoder_select="dct"
1234 mp2float_decoder_select="dct"
1235 mp3adufloat_decoder_select="dct"
1236 mp3float_decoder_select="dct"
1237 mp3on4float_decoder_select="dct"
1238 mpeg1video_encoder_select="aandct"
1239 mpeg2video_encoder_select="aandct"
1240 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1241 mpeg4_encoder_select="h263_encoder"
1242 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1243 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1244 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1245 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1246 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1247 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1248 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1249 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1250 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1251 msmpeg4v1_decoder_select="h263_decoder"
1252 msmpeg4v1_encoder_select="h263_encoder"
1253 msmpeg4v2_decoder_select="h263_decoder"
1254 msmpeg4v2_encoder_select="h263_encoder"
1255 msmpeg4v3_decoder_select="h263_decoder"
1256 msmpeg4v3_encoder_select="h263_encoder"
1257 nellymoser_decoder_select="mdct"
1258 nellymoser_encoder_select="mdct"
1259 png_decoder_select="zlib"
1260 png_encoder_select="zlib"
1261 qcelp_decoder_select="lsp"
1262 qdm2_decoder_select="mdct rdft"
1263 ra_144_encoder_select="lpc"
1264 rv10_decoder_select="h263_decoder"
1265 rv10_encoder_select="h263_encoder"
1266 rv20_decoder_select="h263_decoder"
1267 rv20_encoder_select="h263_encoder"
1268 rv30_decoder_select="golomb h264pred"
1269 rv40_decoder_select="golomb h264pred"
1270 shorten_decoder_select="golomb"
1271 sipr_decoder_select="lsp"
1272 snow_decoder_select="dwt"
1273 snow_encoder_select="aandct dwt"
1274 sonic_decoder_select="golomb"
1275 sonic_encoder_select="golomb"
1276 sonic_ls_encoder_select="golomb"
1277 svq1_encoder_select="aandct"
1278 svq3_decoder_select="golomb h264dsp h264pred"
1279 svq3_decoder_suggest="zlib"
1280 theora_decoder_select="vp3_decoder"
1281 tiff_decoder_suggest="zlib"
1282 tiff_encoder_suggest="zlib"
1283 truehd_decoder_select="mlp_decoder"
1284 tscc_decoder_select="zlib"
1285 twinvq_decoder_select="mdct lsp"
1286 vc1_decoder_select="h263_decoder"
1287 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1288 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1289 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1290 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1291 vorbis_decoder_select="mdct"
1292 vorbis_encoder_select="mdct"
1293 vp6_decoder_select="huffman"
1294 vp6a_decoder_select="vp6_decoder"
1295 vp6f_decoder_select="vp6_decoder"
1296 vp8_decoder_select="h264pred"
1297 wmapro_decoder_select="mdct"
1298 wmav1_decoder_select="mdct"
1299 wmav1_encoder_select="mdct"
1300 wmav2_decoder_select="mdct"
1301 wmav2_encoder_select="mdct"
1302 wmavoice_decoder_select="lsp rdft dct mdct"
1303 wmv1_decoder_select="h263_decoder"
1304 wmv1_encoder_select="h263_encoder"
1305 wmv2_decoder_select="h263_decoder"
1306 wmv2_encoder_select="h263_encoder"
1307 wmv3_decoder_select="vc1_decoder"
1308 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1309 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1310 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1311 zlib_decoder_select="zlib"
1312 zlib_encoder_select="zlib"
1313 zmbv_decoder_select="zlib"
1314 zmbv_encoder_select="zlib"
1315
1316 vaapi_deps="va_va_h"
1317 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1318
1319 # parsers
1320 h264_parser_select="golomb h264dsp h264pred"
1321
1322 # external libraries
1323 libdirac_decoder_deps="libdirac !libschroedinger"
1324 libdirac_encoder_deps="libdirac"
1325 libfaac_encoder_deps="libfaac"
1326 libgsm_decoder_deps="libgsm"
1327 libgsm_encoder_deps="libgsm"
1328 libgsm_ms_decoder_deps="libgsm"
1329 libgsm_ms_encoder_deps="libgsm"
1330 libmp3lame_encoder_deps="libmp3lame"
1331 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1332 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1333 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1334 libopenjpeg_decoder_deps="libopenjpeg"
1335 libschroedinger_decoder_deps="libschroedinger"
1336 libschroedinger_encoder_deps="libschroedinger"
1337 libspeex_decoder_deps="libspeex"
1338 libtheora_encoder_deps="libtheora"
1339 libvorbis_encoder_deps="libvorbis"
1340 libvpx_decoder_deps="libvpx"
1341 libvpx_encoder_deps="libvpx"
1342 libx264_encoder_deps="libx264"
1343 libxavs_encoder_deps="libxavs"
1344 libxvid_encoder_deps="libxvid"
1345
1346 # demuxers / muxers
1347 ac3_demuxer_deps="ac3_parser"
1348 asf_stream_muxer_select="asf_muxer"
1349 avisynth_demuxer_deps="avisynth"
1350 dirac_demuxer_deps="dirac_parser"
1351 eac3_demuxer_select="ac3_parser"
1352 ipod_muxer_select="mov_muxer"
1353 libnut_demuxer_deps="libnut"
1354 libnut_muxer_deps="libnut"
1355 matroska_audio_muxer_select="matroska_muxer"
1356 matroska_demuxer_suggest="zlib bzlib"
1357 mov_demuxer_suggest="zlib"
1358 mp3_demuxer_deps="mpegaudio_parser"
1359 mp4_muxer_select="mov_muxer"
1360 mpegtsraw_demuxer_select="mpegts_demuxer"
1361 mxf_d10_muxer_select="mxf_muxer"
1362 ogg_demuxer_select="golomb"
1363 psp_muxer_select="mov_muxer"
1364 rtp_demuxer_select="sdp_demuxer"
1365 rtsp_demuxer_select="http_protocol sdp_demuxer"
1366 rtsp_muxer_select="rtp_muxer http_protocol sdp_demuxer"
1367 sap_demuxer_select="sdp_demuxer"
1368 sap_muxer_select="rtp_muxer rtp_protocol"
1369 sdp_demuxer_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1370 spdif_muxer_select="aac_parser"
1371 tg2_muxer_select="mov_muxer"
1372 tgp_muxer_select="mov_muxer"
1373 w64_demuxer_deps="wav_demuxer"
1374
1375 # indevs / outdevs
1376 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1377 alsa_outdev_deps="alsa_asoundlib_h"
1378 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1379 dv1394_indev_deps="dv1394 dv_demuxer"
1380 jack_indev_deps="jack_jack_h"
1381 libdc1394_indev_deps="libdc1394"
1382 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1383 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1384 v4l_indev_deps="linux_videodev_h"
1385 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1386 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1387 vfwcap_indev_extralibs="-lavicap32"
1388 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1389 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1390
1391 # protocols
1392 gopher_protocol_deps="network"
1393 http_protocol_deps="network"
1394 http_protocol_select="tcp_protocol"
1395 mmsh_protocol_select="http_protocol"
1396 mmst_protocol_deps="network"
1397 rtmp_protocol_select="tcp_protocol"
1398 rtp_protocol_select="udp_protocol"
1399 tcp_protocol_deps="network"
1400 udp_protocol_deps="network"
1401
1402 # filters
1403 blackframe_filter_deps="gpl"
1404 cropdetect_filter_deps="gpl"
1405 frei0r_filter_deps="frei0r dlopen strtok_r"
1406 ocv_smooth_filter_deps="libopencv"
1407 yadif_filter_deps="gpl"
1408
1409 # libraries
1410 avdevice_deps="avcodec avformat"
1411 avformat_deps="avcodec"
1412
1413 # programs
1414 ffmpeg_deps="avcodec avformat swscale"
1415 ffmpeg_select="buffer_filter"
1416 ffplay_deps="avcodec avformat swscale sdl"
1417 ffplay_select="rdft"
1418 ffprobe_deps="avcodec avformat"
1419 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1420 ffserver_extralibs='$ldl'
1421
1422 doc_deps="texi2html"
1423
1424 # tests
1425
1426 test_deps(){
1427     suf1=$1
1428     suf2=$2
1429     shift 2
1430     for v; do
1431         dep=${v%=*}
1432         tests=${v#*=}
1433         for name in ${tests}; do
1434             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1435         done
1436     done
1437 }
1438
1439 set_ne_test_deps(){
1440     eval ${1}_be_test_deps="bigendian"
1441     eval ${1}_le_test_deps="!bigendian"
1442 }
1443
1444 test_deps _encoder _decoder                                             \
1445     ac3                                                                 \
1446     adpcm_g726=g726                                                     \
1447     adpcm_ima_qt                                                        \
1448     adpcm_ima_wav                                                       \
1449     adpcm_ms                                                            \
1450     adpcm_swf                                                           \
1451     adpcm_yamaha=adpcm_yam                                              \
1452     alac                                                                \
1453     asv1                                                                \
1454     asv2                                                                \
1455     bmp                                                                 \
1456     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1457     dvvideo="dv dv50"                                                   \
1458     ffv1                                                                \
1459     flac                                                                \
1460     flashsv                                                             \
1461     flv                                                                 \
1462     gif                                                                 \
1463     h261                                                                \
1464     h263="h263 h263p"                                                   \
1465     huffyuv                                                             \
1466     jpegls                                                              \
1467     mjpeg="jpg mjpeg ljpeg"                                             \
1468     mp2                                                                 \
1469     mpeg1video="mpeg mpeg1b"                                            \
1470     mpeg2video="mpeg2 mpeg2thread"                                      \
1471     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1472     msmpeg4v3=msmpeg4                                                   \
1473     msmpeg4v2                                                           \
1474     pbm=pbmpipe                                                         \
1475     pcx                                                                 \
1476     pgm="pgm pgmpipe"                                                   \
1477     ppm="ppm ppmpipe"                                                   \
1478     rawvideo="rgb yuv"                                                  \
1479     roq                                                                 \
1480     rv10                                                                \
1481     rv20                                                                \
1482     sgi                                                                 \
1483     snow="snow snowll"                                                  \
1484     svq1                                                                \
1485     targa=tga                                                           \
1486     tiff                                                                \
1487     wmav1                                                               \
1488     wmav2                                                               \
1489     wmv1                                                                \
1490     wmv2                                                                \
1491
1492 test_deps _muxer _demuxer                                               \
1493     aiff                                                                \
1494     pcm_alaw=alaw                                                       \
1495     asf                                                                 \
1496     au                                                                  \
1497     avi                                                                 \
1498     dv=dv_fmt                                                           \
1499     ffm                                                                 \
1500     flv=flv_fmt                                                         \
1501     gxf                                                                 \
1502     matroska=mkv                                                        \
1503     mmf                                                                 \
1504     mov                                                                 \
1505     pcm_mulaw=mulaw                                                     \
1506     mxf                                                                 \
1507     nut                                                                 \
1508     ogg                                                                 \
1509     rawvideo=pixfmt                                                     \
1510     rm                                                                  \
1511     swf                                                                 \
1512     mpegts=ts                                                           \
1513     voc                                                                 \
1514     wav                                                                 \
1515     yuv4mpegpipe=yuv4mpeg                                               \
1516
1517 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1518
1519 set_ne_test_deps pixdesc
1520 set_ne_test_deps pixfmts_crop
1521 set_ne_test_deps pixfmts_hflip
1522 set_ne_test_deps pixfmts_null
1523 set_ne_test_deps pixfmts_pad
1524 set_ne_test_deps pixfmts_scale
1525 set_ne_test_deps pixfmts_vflip
1526
1527 # default parameters
1528
1529 logfile="config.log"
1530
1531 # installation paths
1532 prefix_default="/usr/local"
1533 bindir_default='${prefix}/bin'
1534 datadir_default='${prefix}/share/ffmpeg'
1535 incdir_default='${prefix}/include'
1536 libdir_default='${prefix}/lib'
1537 mandir_default='${prefix}/share/man'
1538 shlibdir_default="$libdir_default"
1539
1540 # toolchain
1541 ar_default="ar"
1542 cc_default="gcc"
1543 cc_version=\"unknown\"
1544 host_cc_default="gcc"
1545 ln_s="ln -sf"
1546 nm_default="nm"
1547 objformat="elf"
1548 ranlib="ranlib"
1549 strip_default="strip"
1550 yasmexe="yasm"
1551 nogas=":"
1552
1553 nm_opts='-g'
1554
1555 # machine
1556 arch_default=$(uname -m)
1557 cpu="generic"
1558
1559 # OS
1560 target_os_default=$(tolower $(uname -s))
1561 host_os=$target_os_default
1562
1563 # configurable options
1564 enable avcodec
1565 enable avcore
1566 enable avdevice
1567 enable avfilter
1568 enable avformat
1569 enable avutil
1570 enable asm
1571 enable debug
1572 enable doc
1573 enable fastdiv
1574 enable ffmpeg
1575 enable ffplay
1576 enable ffprobe
1577 enable ffserver
1578 enable mpegaudio_hp
1579 enable network
1580 enable optimizations
1581 enable protocols
1582 enable static
1583 enable stripping
1584 enable swscale
1585 enable swscale_alpha
1586
1587 # build settings
1588 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1589 FFSERVERLDFLAGS=-Wl,-E
1590 LIBPREF="lib"
1591 LIBSUF=".a"
1592 FULLNAME='$(NAME)$(BUILDSUF)'
1593 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1594 SLIBPREF="lib"
1595 SLIBSUF=".so"
1596 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1597 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1598 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1599 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1600
1601 CC_O='-o $@'
1602
1603 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1604 host_libs='-lm'
1605
1606 target_path='$(CURDIR)'
1607
1608 # since the object filename is not given with the -MM flag, the compiler
1609 # is only able to print the basename, and we must add the path ourselves
1610 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1611 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1612
1613 # find source path
1614 source_path="$(dirname "$0")"
1615 enable source_path_used
1616 if test -f configure; then
1617     source_path="$(pwd)"
1618     disable source_path_used
1619 else
1620     source_path="$(cd "$source_path"; pwd)"
1621     echo "$source_path" | grep -q '[[:blank:]]' &&
1622         die "Out of tree builds are impossible with whitespace in source path."
1623     test -e "$source_path/config.h" &&
1624         die "Out of tree builds are impossible with config.h in source dir."
1625 fi
1626
1627 for v in "$@"; do
1628     r=${v#*=}
1629     l=${v%"$r"}
1630     r=$(sh_quote "$r")
1631     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1632 done
1633
1634 find_things(){
1635     thing=$1
1636     pattern=$2
1637     file=$source_path/$3
1638     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1639 }
1640
1641 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1642 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1643 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1644 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1645 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1646 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1647 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1648 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1649 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1650 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1651 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1652
1653 find_tests(){
1654     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1655 }
1656
1657 ACODEC_TESTS=$(find_tests acodec)
1658 VCODEC_TESTS=$(find_tests vsynth1)
1659 LAVF_TESTS=$(find_tests lavf)
1660 LAVFI_TESTS=$(find_tests lavfi)
1661 SEEK_TESTS=$(find_tests seek seek_)
1662
1663 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1664
1665 for n in $COMPONENT_LIST; do
1666     v=$(toupper ${n%s})_LIST
1667     eval enable \$$v
1668     eval ${n}_if_any="\$$v"
1669 done
1670
1671 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1672
1673 die_unknown(){
1674     echo "Unknown option \"$1\"."
1675     echo "See $0 --help for available options."
1676     exit 1
1677 }
1678
1679 show_list() {
1680     suffix=_$1
1681     shift
1682     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1683     exit 0
1684 }
1685
1686 for opt do
1687     optval="${opt#*=}"
1688     case "$opt" in
1689     --extra-ldflags=*) add_ldflags $optval
1690     ;;
1691     --extra-libs=*) add_extralibs $optval
1692     ;;
1693     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1694     ;;
1695     --enable-debug=*) debuglevel="$optval"
1696     ;;
1697     --disable-everything)
1698     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1699     ;;
1700     --enable-*=*|--disable-*=*)
1701     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1702     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1703     eval list=\$$(toupper $thing)_LIST
1704     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1705     $action $(filter "$name" $list)
1706     ;;
1707     --enable-?*|--disable-?*)
1708     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1709     if is_in $option $COMPONENT_LIST; then
1710         test $action = disable && action=unset
1711         eval $action \$$(toupper ${option%s})_LIST
1712     elif is_in $option $CMDLINE_SELECT; then
1713         $action $option
1714     else
1715         die_unknown $opt
1716     fi
1717     ;;
1718     --list-*)
1719         NAME="${opt#--list-}"
1720         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1721         NAME=${NAME%s}
1722         eval show_list $NAME \$$(toupper $NAME)_LIST
1723     ;;
1724     --help|-h) show_help
1725     ;;
1726     *)
1727     optname="${opt%%=*}"
1728     optname="${optname#--}"
1729     optname=$(echo "$optname" | sed 's/-/_/g')
1730     if is_in $optname $CMDLINE_SET; then
1731         eval $optname='$optval'
1732     elif is_in $optname $CMDLINE_APPEND; then
1733         append $optname "$optval"
1734     else
1735          die_unknown $opt
1736     fi
1737     ;;
1738     esac
1739 done
1740
1741 disabled logging && logfile=/dev/null
1742
1743 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1744 set >> $logfile
1745
1746 test -n "$cross_prefix" && enable cross_compile
1747
1748 if enabled cross_compile; then
1749     test -n "$arch" && test -n "$target_os" ||
1750         die "Must specify target arch and OS when cross-compiling"
1751 fi
1752
1753 set_default arch target_os
1754
1755 ar_default="${cross_prefix}${ar_default}"
1756 cc_default="${cross_prefix}${cc_default}"
1757 nm_default="${cross_prefix}${nm_default}"
1758 ranlib="${cross_prefix}${ranlib}"
1759 strip_default="${cross_prefix}${strip_default}"
1760
1761 sysinclude_default="${sysroot}/usr/include"
1762
1763 set_default cc nm strip sysinclude
1764 enabled cross_compile || host_cc_default=$cc
1765 set_default host_cc
1766
1767 exesuf() {
1768     case $1 in
1769         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1770     esac
1771 }
1772
1773 EXESUF=$(exesuf $target_os)
1774 HOSTEXESUF=$(exesuf $host_os)
1775
1776 # set temporary file name
1777 : ${TMPDIR:=$TEMPDIR}
1778 : ${TMPDIR:=$TMP}
1779 : ${TMPDIR:=/tmp}
1780
1781 if ! check_cmd type mktemp; then
1782     # simple replacement for missing mktemp
1783     # NOT SAFE FOR GENERAL USE
1784     mktemp(){
1785         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1786     }
1787 fi
1788
1789 tmpfile(){
1790     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1791         (set -C; exec > $tmp) 2>/dev/null ||
1792         die "Unable to create temporary file in $TMPDIR."
1793     append TMPFILES $tmp
1794     eval $1=$tmp
1795 }
1796
1797 trap 'rm -f -- $TMPFILES' EXIT
1798 trap exit HUP INT TERM
1799
1800 tmpfile TMPC  .c
1801 tmpfile TMPE  $EXESUF
1802 tmpfile TMPH  .h
1803 tmpfile TMPO  .o
1804 tmpfile TMPS  .S
1805 tmpfile TMPV  .ver
1806 tmpfile TMPSH .sh
1807 tmpfile TMPASM .asm
1808
1809 unset -f mktemp
1810
1811 # make sure we can execute files in $TMPDIR
1812 cat > $TMPSH 2>> $logfile <<EOF
1813 #! /bin/sh
1814 EOF
1815 chmod +x $TMPSH >> $logfile 2>&1
1816 if ! $TMPSH >> $logfile 2>&1; then
1817     cat <<EOF
1818 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1819 variable to another directory and make sure that it is not mounted noexec.
1820 EOF
1821     die "Sanity test failed."
1822 fi
1823
1824 filter_cflags=echo
1825 filter_cppflags=echo
1826 filter_asflags=echo
1827
1828 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1829     cc_type=llvm_gcc
1830     cc_version=__VERSION__
1831     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1832     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1833     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1834     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1835     speed_cflags='-O3'
1836     size_cflags='-Os'
1837 elif $cc -v 2>&1 | grep -qi ^gcc; then
1838     cc_type=gcc
1839     cc_version=__VERSION__
1840     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1841     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1842     if ! $cc -dumpversion | grep -q '^2\.'; then
1843         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1844         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1845     fi
1846     speed_cflags='-O3'
1847     size_cflags='-Os'
1848 elif $cc --version 2>/dev/null | grep -q Intel; then
1849     cc_type=icc
1850     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1851     cc_ident=$($cc --version | head -n1)
1852     icc_version=$($cc -dumpversion)
1853     CC_DEPFLAGS='-MMD'
1854     AS_DEPFLAGS='-MMD'
1855     speed_cflags='-O3'
1856     size_cflags='-Os'
1857     noopt_cflags='-O1'
1858 elif $cc -v 2>&1 | grep -q xlc; then
1859     cc_type=xlc
1860     cc_version="AV_STRINGIFY(__IBMC__)"
1861     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1862     speed_cflags='-O5'
1863     size_cflags='-O5 -qcompact'
1864 elif $cc -V 2>/dev/null | grep -q Compaq; then
1865     cc_type=ccc
1866     cc_version="AV_STRINGIFY(__DECC_VER)"
1867     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1868     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1869     debuglevel=3
1870     add_ldflags -Wl,-z,now # calls to libots crash without this
1871     speed_cflags='-fast'
1872     size_cflags='-O1'
1873 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1874     test -d "$sysroot" || die "No valid sysroot specified."
1875     cc_type=armcc
1876     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1877     cc_ident=$($cc --vsn | head -n1)
1878     armcc_conf="$PWD/armcc.conf"
1879     $cc --arm_linux_configure                 \
1880         --arm_linux_config_file="$armcc_conf" \
1881         --configure_sysroot="$sysroot"        \
1882         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1883         die "Error creating armcc configuration file."
1884     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1885     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1886     as_default="${cross_prefix}gcc"
1887     CC_DEPFLAGS='-MMD'
1888     AS_DEPFLAGS='-MMD'
1889     speed_cflags='-O3'
1890     size_cflags='-Os'
1891 elif $cc -version 2>/dev/null | grep -q TMS470; then
1892     cc_type=tms470
1893     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1894     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1895     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1896     CC_O='-fr=$(@D)'
1897     as_default="${cross_prefix}gcc"
1898     ld_default="${cross_prefix}gcc"
1899     TMPO=$(basename $TMPC .c).o
1900     append TMPFILES $TMPO
1901     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1902     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1903     AS_DEPFLAGS='-MMD'
1904     speed_cflags='-O3 -mf=5'
1905     size_cflags='-O3 -mf=2'
1906     filter_cflags=tms470_flags
1907     tms470_flags(){
1908         for flag; do
1909             case $flag in
1910                 -march=*|-mcpu=*)
1911                     case "${flag#*=}" in
1912                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1913                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1914                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1915                         armv6*|arm11*)          echo -mv=6   ;;
1916                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1917                                                 echo -mv=5e  ;;
1918                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1919                     esac
1920                     ;;
1921                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1922                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1923                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1924                 -msoft-float)   echo --float_support=vfplib       ;;
1925                 -O[0-3]|-mf=*)  echo $flag                        ;;
1926                 -g)             echo -g -mn                       ;;
1927                 -pds=*)         echo $flag                        ;;
1928             esac
1929         done
1930     }
1931 elif $cc -v 2>&1 | grep -q clang; then
1932     cc_type=clang
1933     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1934         cc_version=__clang_version__ || cc_version=__VERSION__
1935     cc_ident=$($cc --version | head -n1)
1936     CC_DEPFLAGS='-MMD'
1937     AS_DEPFLAGS='-MMD'
1938     speed_cflags='-O3'
1939     size_cflags='-Os'
1940 elif $cc -V 2>&1 | grep -q Sun; then
1941     cc_type=suncc
1942     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1943     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1944     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1945     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1946     speed_cflags='-O5'
1947     size_cflags='-O5 -xspace'
1948     filter_cflags=suncc_flags
1949     suncc_flags(){
1950         for flag; do
1951             case $flag in
1952                 -march=*|-mcpu=*)
1953                     case "${flag#*=}" in
1954                         native)                   echo -xtarget=native       ;;
1955                         v9|niagara)               echo -xarch=sparc          ;;
1956                         ultrasparc)               echo -xarch=sparcvis       ;;
1957                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1958                         i586|pentium)             echo -xchip=pentium        ;;
1959                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1960                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1961                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1962                         pentium4*)          echo -xtarget=pentium4           ;;
1963                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1964                         *-sse3)             echo -xarch=sse3                 ;;
1965                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1966                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1967                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1968                         k8|opteron|athlon64|athlon-fx)
1969                                                   echo -xarch=sse2a          ;;
1970                         athlon*)                  echo -xarch=pentium_proa   ;;
1971                     esac
1972                     ;;
1973                 -std=c99)             echo -xc99              ;;
1974                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1975                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1976                 -W*,*)                echo $flag              ;;
1977                 -f*-*|-W*)                                    ;;
1978                 *)                    echo $flag              ;;
1979             esac
1980         done
1981     }
1982 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
1983     cc_type=pathscale
1984     cc_version=__PATHSCALE__
1985     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1986     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1987     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1988     speed_cflags='-O2'
1989     size_cflags='-Os'
1990 elif $cc -v 2>&1 | grep -q Open64; then
1991     cc_type=open64
1992     cc_version=__OPEN64__
1993     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1994     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1995     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1996     speed_cflags='-O2'
1997     size_cflags='-Os'
1998 fi
1999
2000 test -n "$cc_type" && enable $cc_type ||
2001     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2002
2003 : ${as_default:=$cc}
2004 : ${dep_cc_default:=$cc}
2005 : ${ld_default:=$cc}
2006 set_default ar as dep_cc ld
2007
2008 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2009 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2010
2011 add_cflags $extra_cflags
2012 add_asflags $extra_cflags
2013
2014 if test -n "$sysroot"; then
2015     case "$cc_type" in
2016         gcc|llvm_gcc)
2017             add_cppflags --sysroot="$sysroot"
2018             add_ldflags --sysroot="$sysroot"
2019         ;;
2020         tms470)
2021             add_cppflags -I"$sysinclude"
2022             add_ldflags  --sysroot="$sysroot"
2023         ;;
2024         clang)
2025             add_cppflags -isysroot "$sysroot"
2026             add_ldflags -isysroot "$sysroot"
2027         ;;
2028     esac
2029 fi
2030
2031 if test "$cpu" = host; then
2032     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2033
2034     case "$cc_type" in
2035         gcc|llvm_gcc)
2036             check_native(){
2037                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2038                 sed -n "/$1=/{
2039                             s/.*$1=\\([^ ]*\\).*/\\1/
2040                             p
2041                             q
2042                         }" $TMPE
2043             }
2044             cpu=$(check_native -march || check_native -mcpu)
2045         ;;
2046     esac
2047
2048     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2049 fi
2050
2051 # Deal with common $arch aliases
2052 case "$arch" in
2053     arm*)
2054         arch="arm"
2055     ;;
2056     mips|mipsel|IP*)
2057         arch="mips"
2058     ;;
2059     mips64*)
2060         arch="mips"
2061         subarch="mips64"
2062     ;;
2063     parisc|hppa)
2064         arch="parisc"
2065     ;;
2066     parisc64|hppa64)
2067         arch="parisc"
2068         subarch="parisc64"
2069     ;;
2070     "Power Macintosh"|ppc|powerpc)
2071         arch="ppc"
2072     ;;
2073     ppc64|powerpc64)
2074         arch="ppc"
2075         subarch="ppc64"
2076     ;;
2077     s390|s390x)
2078         arch="s390"
2079     ;;
2080     sh4|sh)
2081         arch="sh4"
2082     ;;
2083     sun4u|sparc64)
2084         arch="sparc"
2085         subarch="sparc64"
2086     ;;
2087     i[3-6]86|i86pc|BePC|x86_64|amd64)
2088         arch="x86"
2089     ;;
2090 esac
2091
2092 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2093 enable $arch
2094
2095 # Add processor-specific flags
2096 if test "$cpu" = generic; then
2097     : do nothing
2098 elif enabled ppc; then
2099
2100     case $(tolower $cpu) in
2101         601|ppc601|powerpc601)
2102             cpuflags="-mcpu=601"
2103             disable altivec
2104         ;;
2105         603*|ppc603*|powerpc603*)
2106             cpuflags="-mcpu=603"
2107             disable altivec
2108         ;;
2109         604*|ppc604*|powerpc604*)
2110             cpuflags="-mcpu=604"
2111             disable altivec
2112         ;;
2113         g3|75*|ppc75*|powerpc75*)
2114             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2115             disable altivec
2116         ;;
2117         g4|745*|ppc745*|powerpc745*)
2118             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2119         ;;
2120         74*|ppc74*|powerpc74*)
2121             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2122         ;;
2123         g5|970|ppc970|powerpc970|power4*)
2124             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2125         ;;
2126         cell)
2127             cpuflags="-mcpu=cell"
2128             enable ldbrx
2129         ;;
2130         e500v2)
2131             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2132             disable altivec
2133         ;;
2134         e500)
2135             cpuflags="-mcpu=8540 -mhard-float"
2136             disable altivec
2137         ;;
2138     esac
2139
2140 elif enabled x86; then
2141
2142     case $cpu in
2143         i[345]86|pentium)
2144             cpuflags="-march=$cpu"
2145             disable mmx
2146         ;;
2147         # targets that do NOT support conditional mov (cmov)
2148         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2149             cpuflags="-march=$cpu"
2150             disable cmov
2151         ;;
2152         # targets that do support conditional mov (cmov)
2153         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2154             cpuflags="-march=$cpu"
2155             enable cmov
2156             enable fast_cmov
2157         ;;
2158         # targets that do support conditional mov but on which it's slow
2159         pentium4|pentium4m|prescott|nocona)
2160             cpuflags="-march=$cpu"
2161             enable cmov
2162             disable fast_cmov
2163         ;;
2164     esac
2165
2166 elif enabled sparc; then
2167
2168     case $cpu in
2169         niagara)
2170             cpuflags="-mcpu=$cpu"
2171             disable vis
2172         ;;
2173         sparc64)
2174             cpuflags="-mcpu=v9"
2175         ;;
2176     esac
2177
2178 elif enabled arm; then
2179
2180     case $cpu in
2181         armv*)
2182             cpuflags="-march=$cpu"
2183             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2184         ;;
2185         *)
2186             cpuflags="-mcpu=$cpu"
2187             case $cpu in
2188                 cortex-a*)                               subarch=armv7a  ;;
2189                 cortex-r*)                               subarch=armv7r  ;;
2190                 cortex-m*)                               subarch=armv7m  ;;
2191                 arm11*)                                  subarch=armv6   ;;
2192                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2193                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2194             esac
2195         ;;
2196     esac
2197
2198 elif enabled alpha; then
2199
2200     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2201
2202 elif enabled bfin; then
2203
2204     cpuflags="-mcpu=$cpu"
2205
2206 elif enabled mips; then
2207
2208     cpuflags="-march=$cpu"
2209
2210 elif enabled avr32; then
2211
2212     case $cpu in
2213         ap7[02]0[0-2])
2214             subarch="avr32_ap"
2215             cpuflags="-mpart=$cpu"
2216         ;;
2217         ap)
2218             subarch="avr32_ap"
2219             cpuflags="-march=$cpu"
2220         ;;
2221         uc3[ab]*)
2222             subarch="avr32_uc"
2223             cpuflags="-mcpu=$cpu"
2224         ;;
2225         uc)
2226             subarch="avr32_uc"
2227             cpuflags="-march=$cpu"
2228         ;;
2229     esac
2230
2231 fi
2232
2233 add_cflags $cpuflags
2234 add_asflags $cpuflags
2235
2236 # compiler sanity check
2237 check_exec <<EOF
2238 int main(void){ return 0; }
2239 EOF
2240 if test "$?" != 0; then
2241     echo "$cc is unable to create an executable file."
2242     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2243         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2244         echo "Only do this if you know what cross compiling means."
2245     fi
2246     die "C compiler test failed."
2247 fi
2248
2249 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2250 check_cflags -std=c99
2251 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2252 #include <stdlib.h>
2253 EOF
2254 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2255 #include <stdlib.h>
2256 EOF
2257
2258 check_host_cflags -std=c99
2259
2260 case "$arch" in
2261     alpha|ia64|mips|parisc|sparc)
2262         spic=$shared
2263     ;;
2264     x86)
2265         subarch="x86_32"
2266         check_cc <<EOF && subarch="x86_64"
2267         int test[(int)sizeof(char*) - 7];
2268 EOF
2269         if test "$subarch" = "x86_64"; then
2270             spic=$shared
2271         fi
2272     ;;
2273 esac
2274
2275 enable $subarch
2276 enabled spic && enable pic
2277
2278 # OS specific
2279 case $target_os in
2280     haiku)
2281         prefix_default="/boot/common"
2282         network_extralibs="-lnetwork"
2283         ;;
2284     sunos)
2285         FFSERVERLDFLAGS=""
2286         SHFLAGS='-shared -Wl,-h,$$(@F)'
2287         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2288         network_extralibs="-lsocket -lnsl"
2289         add_cppflags -D__EXTENSIONS__
2290         nm_opts='-P -g'
2291         ;;
2292     netbsd)
2293         oss_indev_extralibs="-lossaudio"
2294         oss_outdev_extralibs="-lossaudio"
2295         add_cppflags -D_XOPEN_SOURCE=600
2296         ;;
2297     openbsd)
2298         enable malloc_aligned
2299         # On OpenBSD 4.5. the compiler does not use PIC unless
2300         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2301         # however the generated executable will not do anything
2302         # (simply quits with exit-code 1, no crash, no output).
2303         # Thus explicitly enable PIC here.
2304         enable pic
2305         SHFLAGS='-shared'
2306         oss_indev_extralibs="-lossaudio"
2307         oss_outdev_extralibs="-lossaudio"
2308         ;;
2309     freebsd|dragonfly)
2310         enable malloc_aligned
2311         ;;
2312     bsd/os)
2313         add_extralibs -lpoll -lgnugetopt
2314         strip="strip -d"
2315         ;;
2316     darwin)
2317         enable malloc_aligned
2318         gas="gas-preprocessor.pl $cc"
2319         enabled ppc && add_asflags -force_cpusubtype_ALL
2320         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2321         strip="${strip} -x"
2322         add_ldflags -Wl,-dynamic,-search_paths_first
2323         SLIBSUF=".dylib"
2324         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2325         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2326         FFSERVERLDFLAGS=-Wl,-bind_at_load
2327         objformat="macho"
2328         enabled x86_64 && objformat="macho64"
2329         enabled_any pic shared ||
2330             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2331         ;;
2332     mingw32*)
2333         if test $target_os = "mingw32ce"; then
2334             disable network
2335         else
2336             target_os=mingw32
2337         fi
2338         LIBTARGET=i386
2339         if enabled x86_64; then
2340             enable malloc_aligned
2341             LIBTARGET=x64
2342         elif enabled arm; then
2343             LIBTARGET=arm
2344         fi
2345         shlibdir_default="$bindir_default"
2346         disable ffserver
2347         SLIBPREF=""
2348         SLIBSUF=".dll"
2349         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2350         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2351         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2352         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2353             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2354             install -d "$(LIBDIR)"; \
2355             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2356         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2357         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'
2358         objformat="win32"
2359         enable dos_paths
2360         check_cflags -fno-common
2361         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2362                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2363                 die "ERROR: MinGW runtime version must be >= 3.15."
2364         ;;
2365     cygwin*)
2366         target_os=cygwin
2367         shlibdir_default="$bindir_default"
2368         SLIBPREF="cyg"
2369         SLIBSUF=".dll"
2370         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2371         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2372         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2373         objformat="win32"
2374         enable dos_paths
2375         check_cflags -fno-common
2376         ;;
2377     *-dos|freedos|opendos)
2378         disable ffplay ffserver
2379         disable $INDEV_LIST $OUTDEV_LIST
2380         network_extralibs="-lsocket"
2381         objformat="coff"
2382         enable dos_paths
2383         ;;
2384     linux)
2385         enable dv1394
2386         ;;
2387     irix*)
2388         target_os=irix
2389         ranlib="echo ignoring ranlib"
2390         ;;
2391     os/2*)
2392         strip="lxlite"
2393         ln_s="cp -f"
2394         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2395         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2396         FFSERVERLDFLAGS=""
2397         LIBSUF="_s.a"
2398         SLIBPREF=""
2399         SLIBSUF=".dll"
2400         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2401         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2402         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2403           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2404           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2405           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2406           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2407           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2408         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2409           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2410         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2411         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2412         enable dos_paths
2413         ;;
2414     gnu/kfreebsd)
2415         ;;
2416     gnu)
2417         ;;
2418     none)
2419         ;;
2420     *)
2421         die "Unknown OS '$target_os'."
2422         ;;
2423 esac
2424
2425 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2426
2427 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2428
2429 set_default $PATHS_LIST
2430
2431 # we need to build at least one lib type
2432 if ! enabled_any static shared; then
2433     cat <<EOF
2434 At least one library type must be built.
2435 Specify --enable-static to build the static libraries or --enable-shared to
2436 build the shared libraries as well. To only build the shared libraries specify
2437 --disable-static in addition to --enable-shared.
2438 EOF
2439     exit 1;
2440 fi
2441
2442 disabled static && LIBNAME=""
2443
2444 die_license_disabled() {
2445     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2446 }
2447
2448 die_license_disabled gpl libx264
2449 die_license_disabled gpl libxavs
2450 die_license_disabled gpl libxvid
2451 die_license_disabled gpl postproc
2452 die_license_disabled gpl x11grab
2453
2454 die_license_disabled nonfree libfaac
2455
2456 die_license_disabled version3 libopencore_amrnb
2457 die_license_disabled version3 libopencore_amrwb
2458
2459 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2460
2461 check_deps $ARCH_EXT_LIST
2462
2463 disabled optimizations || check_cflags -fomit-frame-pointer
2464
2465 enable_pic() {
2466     enable pic
2467     add_cppflags -DPIC
2468     add_cflags   -fPIC
2469     add_asflags  -fPIC
2470 }
2471
2472 enabled pic && enable_pic
2473
2474 check_cc <<EOF || die "Symbol mangling check failed."
2475 int ff_extern;
2476 EOF
2477 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2478 extern_prefix=${sym%%ff_extern*}
2479
2480 check_cc <<EOF && enable inline_asm
2481 void foo(void) { __asm__ volatile ("" ::); }
2482 EOF
2483
2484 _restrict=
2485 for restrict_keyword in restrict __restrict__ __restrict; do
2486     check_cc <<EOF && _restrict=$restrict_keyword && break
2487 void foo(char * $restrict_keyword p);
2488 EOF
2489 done
2490
2491 check_cc <<EOF && enable attribute_packed
2492 struct { int x; } __attribute__((packed)) x;
2493 EOF
2494
2495 check_cc <<EOF && enable attribute_may_alias
2496 union { int x; } __attribute__((may_alias)) x;
2497 EOF
2498
2499 check_cc <<EOF || die "endian test failed"
2500 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2501 EOF
2502 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2503
2504 if enabled alpha; then
2505
2506     check_cflags -mieee
2507
2508 elif enabled arm; then
2509
2510     check_cflags -marm
2511     nogas=die
2512
2513     check_ld <<EOF && enable vfp_args
2514 __asm__ (".eabi_attribute 28, 1");
2515 int main(void) { return 0; }
2516 EOF
2517
2518     # We have to check if pld is a nop and disable it.
2519     check_asm pld '"pld [r0]"'
2520
2521     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2522     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2523     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2524     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2525     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2526     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2527
2528     enabled_all armv6t2 shared !pic && enable_pic
2529
2530 elif enabled mips; then
2531
2532     check_asm loongson '"dmult.g $1, $2, $3"'
2533     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2534
2535 elif enabled ppc; then
2536
2537     enable local_aligned_8 local_aligned_16
2538
2539     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2540     check_asm ibm_asm   '"add 0, 0, 0"'
2541     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2542     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2543
2544     # AltiVec flags: The FSF version of GCC differs from the Apple version
2545     if enabled altivec; then
2546         nogas=warn
2547         check_cflags -maltivec -mabi=altivec &&
2548         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2549         check_cflags -faltivec
2550
2551         # check if our compiler supports Motorola AltiVec C API
2552         check_cc <<EOF || disable altivec
2553 $inc_altivec_h
2554 int main(void) {
2555     vector signed int v1, v2, v3;
2556     v1 = vec_add(v2,v3);
2557     return 0;
2558 }
2559 EOF
2560
2561         # check if our compiler supports braces for vector declarations
2562         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2563 $inc_altivec_h
2564 int main (void) { (vector int) {1}; return 0; }
2565 EOF
2566     fi
2567
2568 elif enabled sparc; then
2569
2570     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2571         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2572
2573 elif enabled x86; then
2574
2575     enable local_aligned_8 local_aligned_16
2576
2577     # check whether EBP is available on x86
2578     # As 'i' is stored on the stack, this program will crash
2579     # if the base pointer is used to access it because the
2580     # base pointer is cleared in the inline assembly code.
2581     check_exec_crash <<EOF && enable ebp_available
2582     volatile int i=0;
2583     __asm__ volatile (
2584         "xorl %%ebp, %%ebp"
2585     ::: "%ebp");
2586     return i;
2587 EOF
2588
2589     # check whether EBX is available on x86
2590     check_asm ebx_available '""::"b"(0)' &&
2591         check_asm ebx_available '"":::"%ebx"'
2592
2593     # check whether xmm clobbers are supported
2594     check_asm xmm_clobbers '"":::"%xmm0"'
2595
2596     # check whether more than 10 operands are supported
2597     check_cc <<EOF && enable ten_operands
2598 int main(void) {
2599     int x=0;
2600     __asm__ volatile(
2601         ""
2602         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2603     );
2604     return 0;
2605 }
2606 EOF
2607
2608     # check whether binutils is new enough to compile SSSE3/MMX2
2609     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2610     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2611
2612     check_asm bswap '"bswap %%eax" ::: "%eax"'
2613
2614     if ! disabled_any asm mmx yasm; then
2615         if check_cmd $yasmexe --version; then
2616             enabled x86_64 && yasm_extra="-m amd64"
2617             yasm_debug="-g dwarf2"
2618         elif check_cmd nasm -v; then
2619             yasmexe=nasm
2620             yasm_debug="-g -F dwarf"
2621             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2622         fi
2623
2624         YASMFLAGS="-f $objformat $yasm_extra"
2625         enabled pic               && append YASMFLAGS "-DPIC"
2626         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2627         case "$objformat" in
2628             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2629         esac
2630
2631         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2632             die "yasm not found, use --disable-yasm for a crippled build"
2633     fi
2634
2635     case "$cpu" in
2636         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2637             disable fast_clz
2638         ;;
2639     esac
2640
2641 fi
2642
2643 if enabled asm; then
2644     as=${gas:=$as}
2645     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2646         $nogas "GNU assembler not found, install gas-preprocessor"
2647 fi
2648
2649 if check_func dlopen; then
2650     ldl=
2651 elif check_func dlopen -ldl; then
2652     ldl=-ldl
2653 fi
2654
2655 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2656 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2657
2658 check_func  fcntl
2659 check_func  fork
2660 check_func  getaddrinfo $network_extralibs
2661 check_func  gethrtime
2662 check_func  getrusage
2663 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2664 check_func  inet_aton $network_extralibs
2665 check_func  isatty
2666 check_func  ${malloc_prefix}memalign            && enable memalign
2667 check_func  mkstemp
2668 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2669 check_func  setrlimit
2670 check_func  strerror_r
2671 check_func  strtok_r
2672 check_func_headers io.h setmode
2673 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2674 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2675 check_func_headers windows.h GetProcessTimes
2676 check_func_headers windows.h VirtualAlloc
2677
2678 check_header conio.h
2679 check_header dlfcn.h
2680 check_header dxva2api.h
2681 check_header malloc.h
2682 check_header poll.h
2683 check_header sys/mman.h
2684 check_header sys/resource.h
2685 check_header sys/select.h
2686 check_header termios.h
2687 check_header vdpau/vdpau.h
2688 check_header vdpau/vdpau_x11.h
2689 check_header X11/extensions/XvMClib.h
2690
2691 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2692
2693 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2694      enabled_any $need_memalign ; then
2695     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2696 fi
2697
2698 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2699 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2700
2701 # check for some common methods of building with pthread support
2702 # do this before the optional library checks as some of them require pthreads
2703 if ! disabled pthreads && ! enabled w32threads; then
2704     enable pthreads
2705     if check_func pthread_create; then
2706         :
2707     elif check_func pthread_create -pthread; then
2708         add_cflags -pthread
2709         add_extralibs -pthread
2710     elif check_func pthread_create -pthreads; then
2711         add_cflags -pthreads
2712         add_extralibs -pthreads
2713     elif check_func pthread_create -lpthreadGC2; then
2714         add_extralibs -lpthreadGC2
2715     elif ! check_lib pthread.h pthread_create -lpthread; then
2716         disable pthreads
2717     fi
2718 fi
2719
2720 for thread in $THREADS_LIST; do
2721     if enabled $thread; then
2722         test -n "$thread_type" &&
2723             die "ERROR: Only one thread type must be selected." ||
2724             thread_type="$thread"
2725     fi
2726 done
2727
2728 check_lib math.h sin -lm
2729 disabled vaapi || check_lib va/va.h vaInitialize -lva
2730
2731 check_mathfunc exp2
2732 check_mathfunc exp2f
2733 check_mathfunc llrint
2734 check_mathfunc llrintf
2735 check_mathfunc log2
2736 check_mathfunc log2f
2737 check_mathfunc lrint
2738 check_mathfunc lrintf
2739 check_mathfunc round
2740 check_mathfunc roundf
2741 check_mathfunc truncf
2742
2743 # these are off by default, so fail if requested and not available
2744 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2745 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2746 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2747                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2748                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2749 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2750 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2751 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2752 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2753 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2754 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2755 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2756                         die "ERROR: libopencv not found"; }
2757 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2758 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2759                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2760 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2761                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2762 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2763 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2764 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2765 enabled libvpx     && {
2766     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2767                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2768     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2769                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2770 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2771                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2772                         die "ERROR: libx264 version must be >= 0.98."; }
2773 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2774 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2775 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2776
2777 # libdc1394 check
2778 if enabled libdc1394; then
2779     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2780         enable libdc1394_2; } ||
2781     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2782         enable libdc1394_1; } ||
2783     die "ERROR: No version of libdc1394 found "
2784 fi
2785
2786 SDL_CONFIG="${cross_prefix}sdl-config"
2787 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2788     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2789     sdl_libs=$("${SDL_CONFIG}" --libs)
2790     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2791     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2792     enable sdl &&
2793     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2794 fi
2795
2796 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2797
2798 if enabled network; then
2799     check_type "sys/types.h sys/socket.h" socklen_t
2800     check_type netdb.h "struct addrinfo"
2801     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2802     check_type netinet/in.h "struct sockaddr_in6"
2803     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2804     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2805     # Prefer arpa/inet.h over winsock2
2806     if check_header arpa/inet.h ; then
2807         check_func closesocket
2808     elif check_header winsock2.h ; then
2809         check_func_headers winsock2.h closesocket -lws2 && \
2810             network_extralibs="-lws2" || \
2811         { check_func_headers winsock2.h closesocket -lws2_32 && \
2812             network_extralibs="-lws2_32"; }
2813         check_type ws2tcpip.h socklen_t
2814         check_type ws2tcpip.h "struct addrinfo"
2815         check_type ws2tcpip.h "struct ipv6_mreq"
2816         check_type ws2tcpip.h "struct sockaddr_in6"
2817         check_type ws2tcpip.h "struct sockaddr_storage"
2818         check_struct winsock2.h "struct sockaddr" sa_len
2819     else
2820         disable network
2821     fi
2822 fi
2823
2824 check_header linux/videodev.h
2825 check_header linux/videodev2.h
2826 check_header sys/videoio.h
2827
2828 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2829 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2830 # w32api 3.12 had it defined wrong
2831 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2832
2833 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2834 { check_header dev/bktr/ioctl_meteor.h &&
2835   check_header dev/bktr/ioctl_bt848.h; } ||
2836 { check_header machine/ioctl_meteor.h &&
2837   check_header machine/ioctl_bt848.h; } ||
2838 { check_header dev/video/meteor/ioctl_meteor.h &&
2839   check_header dev/video/bktr/ioctl_bt848.h; } ||
2840 check_header dev/ic/bt8xx.h
2841
2842 check_header sys/soundcard.h
2843 check_header soundcard.h
2844
2845 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2846
2847 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2848
2849 enabled x11grab                         &&
2850 check_header X11/Xlib.h                 &&
2851 check_header X11/extensions/XShm.h      &&
2852 check_header X11/extensions/Xfixes.h    &&
2853 check_func XOpenDisplay -lX11           &&
2854 check_func XShmCreateImage -lX11 -lXext &&
2855 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2856
2857 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2858 check_cpp_condition \
2859     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2860     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2861       disable vdpau; }
2862 fi
2863
2864 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2865
2866 # add some useful compiler flags if supported
2867 check_cflags -Wdeclaration-after-statement
2868 check_cflags -Wall
2869 check_cflags -Wno-parentheses
2870 check_cflags -Wno-switch
2871 check_cflags -Wdisabled-optimization
2872 check_cflags -Wpointer-arith
2873 check_cflags -Wredundant-decls
2874 check_cflags -Wno-pointer-sign
2875 check_cflags -Wcast-qual
2876 check_cflags -Wwrite-strings
2877 check_cflags -Wtype-limits
2878 check_cflags -Wundef
2879 check_cflags -Wmissing-prototypes
2880 enabled extra_warnings && check_cflags -Winline
2881
2882 # add some linker flags
2883 check_ldflags -Wl,--warn-common
2884 check_ldflags -Wl,--as-needed
2885 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'
2886 check_ldflags -Wl,-Bsymbolic
2887
2888 echo "X{};" > $TMPV
2889 if test_ldflags -Wl,--version-script,$TMPV; then
2890     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2891     check_cc <<EOF && enable symver_asm_label
2892 void ff_foo(void) __asm__ ("av_foo@VERSION");
2893 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2894 EOF
2895     check_cc <<EOF && enable symver_gnu_asm
2896 __asm__(".symver ff_foo,av_foo@VERSION");
2897 void ff_foo(void) {}
2898 EOF
2899 fi
2900
2901 if enabled small; then
2902     add_cflags $size_cflags
2903     optimizations="small"
2904 elif enabled optimizations; then
2905     add_cflags $speed_cflags
2906 else
2907     add_cflags $noopt_cflags
2908 fi
2909 check_cflags -fno-math-errno
2910 check_cflags -fno-signed-zeros
2911
2912 if enabled icc; then
2913     # Just warnings, no remarks
2914     check_cflags -w1
2915     # -wd: Disable following warnings
2916     # 144, 167, 556: -Wno-pointer-sign
2917     # 10006: ignoring unknown option -fno-signed-zeros
2918     # 10156: ignoring option '-W'; no argument required
2919     check_cflags -wd144,167,556,10006,10156
2920     # 11030: Warning unknown option --as-needed
2921     # 10156: ignoring option '-export'; no argument required
2922     check_ldflags -wd10156,11030
2923     # Allow to compile with optimizations
2924     check_ldflags -march=$cpu
2925     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2926     enable ebp_available
2927     if enabled x86_32; then
2928         test ${icc_version%%.*} -ge 11 && \
2929             check_cflags -falign-stack=maintain-16-byte || \
2930             disable aligned_stack
2931     fi
2932 elif enabled ccc; then
2933     # disable some annoying warnings
2934     add_cflags -msg_disable cvtu32to64
2935     add_cflags -msg_disable embedcomment
2936     add_cflags -msg_disable needconstext
2937     add_cflags -msg_disable nomainieee
2938     add_cflags -msg_disable ptrmismatch1
2939     add_cflags -msg_disable unreachcode
2940 elif enabled gcc; then
2941     check_cflags -fno-tree-vectorize
2942     check_cflags -Werror=implicit-function-declaration
2943     check_cflags -Werror=missing-prototypes
2944 elif enabled llvm_gcc; then
2945     check_cflags -mllvm -stack-alignment=16
2946 elif enabled clang; then
2947     check_cflags -mllvm -stack-alignment=16
2948     check_cflags -Qunused-arguments
2949 elif enabled armcc; then
2950     # 2523: use of inline assembler is deprecated
2951     add_cflags -W${armcc_opt},--diag_suppress=2523
2952     add_cflags -W${armcc_opt},--diag_suppress=1207
2953 elif enabled tms470; then
2954     add_cflags -pds=824 -pds=837
2955 fi
2956
2957 enabled_any $THREADS_LIST      && enable threads
2958
2959 check_deps $CONFIG_LIST       \
2960            $CONFIG_EXTRA      \
2961            $HAVE_LIST         \
2962            $DECODER_LIST      \
2963            $ENCODER_LIST      \
2964            $HWACCEL_LIST      \
2965            $PARSER_LIST       \
2966            $BSF_LIST          \
2967            $DEMUXER_LIST      \
2968            $MUXER_LIST        \
2969            $FILTER_LIST       \
2970            $INDEV_LIST        \
2971            $OUTDEV_LIST       \
2972            $PROTOCOL_LIST     \
2973            $ACODEC_TESTS      \
2974            $VCODEC_TESTS      \
2975            $LAVF_TESTS        \
2976            $LAVFI_TESTS       \
2977            $SEEK_TESTS        \
2978
2979 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2980
2981 echo "install prefix            $prefix"
2982 echo "source path               $source_path"
2983 echo "C compiler                $cc"
2984 echo "ARCH                      $arch ($cpu)"
2985 if test "$build_suffix" != ""; then
2986     echo "build suffix              $build_suffix"
2987 fi
2988 if test "$extra_version" != ""; then
2989     echo "version string suffix     $extra_version"
2990 fi
2991 echo "big-endian                ${bigendian-no}"
2992 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2993 if enabled x86; then
2994     echo "yasm                      ${yasm-no}"
2995     echo "MMX enabled               ${mmx-no}"
2996     echo "MMX2 enabled              ${mmx2-no}"
2997     echo "3DNow! enabled            ${amd3dnow-no}"
2998     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2999     echo "SSE enabled               ${sse-no}"
3000     echo "SSSE3 enabled             ${ssse3-no}"
3001     echo "CMOV enabled              ${cmov-no}"
3002     echo "CMOV is fast              ${fast_cmov-no}"
3003     echo "EBX available             ${ebx_available-no}"
3004     echo "EBP available             ${ebp_available-no}"
3005     echo "10 operands supported     ${ten_operands-no}"
3006 fi
3007 if enabled arm; then
3008     echo "ARMv5TE enabled           ${armv5te-no}"
3009     echo "ARMv6 enabled             ${armv6-no}"
3010     echo "ARMv6T2 enabled           ${armv6t2-no}"
3011     echo "ARM VFP enabled           ${armvfp-no}"
3012     echo "IWMMXT enabled            ${iwmmxt-no}"
3013     echo "NEON enabled              ${neon-no}"
3014 fi
3015 if enabled mips; then
3016     echo "MMI enabled               ${mmi-no}"
3017 fi
3018 if enabled ppc; then
3019     echo "AltiVec enabled           ${altivec-no}"
3020     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3021     echo "dcbzl available           ${dcbzl-no}"
3022 fi
3023 if enabled sparc; then
3024     echo "VIS enabled               ${vis-no}"
3025 fi
3026 echo "debug symbols             ${debug-no}"
3027 echo "strip symbols             ${stripping-no}"
3028 echo "optimizations             ${optimizations-no}"
3029 echo "static                    ${static-no}"
3030 echo "shared                    ${shared-no}"
3031 echo "postprocessing support    ${postproc-no}"
3032 echo "new filter support        ${avfilter-no}"
3033 echo "network support           ${network-no}"
3034 echo "threading support         ${thread_type-no}"
3035 echo "SDL support               ${sdl-no}"
3036 echo "Sun medialib support      ${mlib-no}"
3037 echo "AVISynth enabled          ${avisynth-no}"
3038 echo "frei0r enabled            ${frei0r-no}"
3039 echo "libdc1394 support         ${libdc1394-no}"
3040 echo "libdirac enabled          ${libdirac-no}"
3041 echo "libfaac enabled           ${libfaac-no}"
3042 echo "libgsm enabled            ${libgsm-no}"
3043 echo "libmp3lame enabled        ${libmp3lame-no}"
3044 echo "libnut enabled            ${libnut-no}"
3045 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3046 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3047 echo "libopencv support         ${libopencv-no}"
3048 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3049 echo "librtmp enabled           ${librtmp-no}"
3050 echo "libschroedinger enabled   ${libschroedinger-no}"
3051 echo "libspeex enabled          ${libspeex-no}"
3052 echo "libtheora enabled         ${libtheora-no}"
3053 echo "libvorbis enabled         ${libvorbis-no}"
3054 echo "libvpx enabled            ${libvpx-no}"
3055 echo "libx264 enabled           ${libx264-no}"
3056 echo "libxavs enabled           ${libxavs-no}"
3057 echo "libxvid enabled           ${libxvid-no}"
3058 echo "zlib enabled              ${zlib-no}"
3059 echo "bzlib enabled             ${bzlib-no}"
3060 echo
3061
3062 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3063     echo "Enabled ${type}s:"
3064     eval list=\$$(toupper $type)_LIST
3065     print_enabled '_*' $list | sort | pr -3 -t
3066     echo
3067 done
3068
3069 license="LGPL version 2.1 or later"
3070 if enabled nonfree; then
3071     license="nonfree and unredistributable"
3072 elif enabled gplv3; then
3073     license="GPL version 3 or later"
3074 elif enabled lgplv3; then
3075     license="LGPL version 3 or later"
3076 elif enabled gpl; then
3077     license="GPL version 2 or later"
3078 fi
3079
3080 echo "License: $license"
3081
3082 echo "Creating config.mak and config.h..."
3083
3084 # build tree in object directory if source path is different from current one
3085 if enabled source_path_used; then
3086     DIRS="
3087         doc
3088         libavcodec
3089         libavcodec/$arch
3090         libavcore
3091         libavdevice
3092         libavfilter
3093         libavfilter/$arch
3094         libavformat
3095         libavutil
3096         libavutil/$arch
3097         libpostproc
3098         libswscale
3099         libswscale/$arch
3100         tests
3101         tools
3102     "
3103     FILES="
3104         Makefile
3105         common.mak
3106         subdir.mak
3107         doc/texi2pod.pl
3108         libavcodec/Makefile
3109         libavcodec/${arch}/Makefile
3110         libavcore/Makefile
3111         libavdevice/Makefile
3112         libavfilter/Makefile
3113         libavfilter/${arch}/Makefile
3114         libavformat/Makefile
3115         libavutil/Makefile
3116         libpostproc/Makefile
3117         libswscale/Makefile
3118     "
3119     map 'mkdir -p $v' $DIRS;
3120     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3121 fi
3122
3123 enabled stripping || strip="echo skipping strip"
3124
3125 config_files="$TMPH config.mak"
3126
3127 cat > config.mak <<EOF
3128 # Automatically generated by configure - do not modify!
3129 ifndef FFMPEG_CONFIG_MAK
3130 FFMPEG_CONFIG_MAK=1
3131 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3132 prefix=$prefix
3133 LIBDIR=\$(DESTDIR)$libdir
3134 SHLIBDIR=\$(DESTDIR)$shlibdir
3135 INCDIR=\$(DESTDIR)$incdir
3136 BINDIR=\$(DESTDIR)$bindir
3137 DATADIR=\$(DESTDIR)$datadir
3138 MANDIR=\$(DESTDIR)$mandir
3139 SRC_PATH="$source_path"
3140 SRC_PATH_BARE=$source_path
3141 BUILD_ROOT="$PWD"
3142 CC_IDENT=$cc_ident
3143 ARCH=$arch
3144 CC=$cc
3145 AS=$as
3146 LD=$ld
3147 DEPCC=$dep_cc
3148 YASM=$yasmexe
3149 YASMDEP=$yasmexe
3150 AR=$ar
3151 RANLIB=$ranlib
3152 CP=cp -p
3153 LN_S=$ln_s
3154 STRIP=$strip
3155 CPPFLAGS=$CPPFLAGS
3156 CFLAGS=$CFLAGS
3157 ASFLAGS=$ASFLAGS
3158 CC_O=$CC_O
3159 LDFLAGS=$LDFLAGS
3160 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3161 SHFLAGS=$SHFLAGS
3162 YASMFLAGS=$YASMFLAGS
3163 BUILDSUF=$build_suffix
3164 FULLNAME=$FULLNAME
3165 LIBPREF=$LIBPREF
3166 LIBSUF=$LIBSUF
3167 LIBNAME=$LIBNAME
3168 SLIBPREF=$SLIBPREF
3169 SLIBSUF=$SLIBSUF
3170 EXESUF=$EXESUF
3171 EXTRA_VERSION=$extra_version
3172 DEPFLAGS=$DEPFLAGS
3173 CCDEP=$CCDEP
3174 ASDEP=$ASDEP
3175 CC_DEPFLAGS=$CC_DEPFLAGS
3176 AS_DEPFLAGS=$AS_DEPFLAGS
3177 HOSTCC=$host_cc
3178 HOSTCFLAGS=$host_cflags
3179 HOSTEXESUF=$HOSTEXESUF
3180 HOSTLDFLAGS=$host_ldflags
3181 HOSTLIBS=$host_libs
3182 TARGET_EXEC=$target_exec
3183 TARGET_PATH=$target_path
3184 SDL_LIBS=$sdl_libs
3185 SDL_CFLAGS=$sdl_cflags
3186 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3187 EXTRALIBS=$extralibs
3188 INSTALL=install
3189 LIBTARGET=${LIBTARGET}
3190 SLIBNAME=${SLIBNAME}
3191 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3192 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3193 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3194 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3195 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3196 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3197 SAMPLES=$samples
3198 EOF
3199
3200 get_version(){
3201     name=$1
3202     file=$source_path/$2
3203     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3204     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3205     lcname=$(tolower $name)
3206     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3207     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3208 }
3209
3210 get_version LIBSWSCALE  libswscale/swscale.h
3211 get_version LIBPOSTPROC libpostproc/postprocess.h
3212 get_version LIBAVCODEC  libavcodec/avcodec.h
3213 get_version LIBAVCORE   libavcore/avcore.h
3214 get_version LIBAVDEVICE libavdevice/avdevice.h
3215 get_version LIBAVFORMAT libavformat/avformat.h
3216 get_version LIBAVUTIL   libavutil/avutil.h
3217 get_version LIBAVFILTER libavfilter/avfilter.h
3218
3219 cat > $TMPH <<EOF
3220 /* Automatically generated by configure - do not modify! */
3221 #ifndef FFMPEG_CONFIG_H
3222 #define FFMPEG_CONFIG_H
3223 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3224 #define FFMPEG_LICENSE "$(c_escape $license)"
3225 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3226 #define CC_TYPE "$cc_type"
3227 #define CC_VERSION $cc_version
3228 #define restrict $_restrict
3229 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3230 #define EXTERN_PREFIX "${extern_prefix}"
3231 #define EXTERN_ASM ${extern_prefix}
3232 #define SLIBSUF "$SLIBSUF"
3233 EOF
3234
3235 test -n "$malloc_prefix" &&
3236     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3237
3238 if enabled small || disabled optimizations; then
3239     echo "#undef  av_always_inline"  >> $TMPH
3240     echo "#define av_always_inline"  >> $TMPH
3241 fi
3242
3243 if enabled yasm; then
3244     append config_files $TMPASM
3245     printf '' >$TMPASM
3246 fi
3247
3248 print_config ARCH_   "$config_files" $ARCH_LIST
3249 print_config HAVE_   "$config_files" $HAVE_LIST
3250 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3251                                      $CONFIG_EXTRA      \
3252                                      $DECODER_LIST      \
3253                                      $ENCODER_LIST      \
3254                                      $HWACCEL_LIST      \
3255                                      $PARSER_LIST       \
3256                                      $BSF_LIST          \
3257                                      $DEMUXER_LIST      \
3258                                      $MUXER_LIST        \
3259                                      $FILTER_LIST       \
3260                                      $PROTOCOL_LIST     \
3261                                      $INDEV_LIST        \
3262                                      $OUTDEV_LIST       \
3263
3264 cat >>config.mak <<EOF
3265 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3266 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3267 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3268 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3269 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3270 EOF
3271
3272 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3273 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3274
3275 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3276 cp_if_changed $TMPH config.h
3277 touch .config
3278
3279 enabled yasm && cp_if_changed $TMPASM config.asm
3280
3281 cat > $TMPH <<EOF
3282 /* Generated by ffconf */
3283 #ifndef AVUTIL_AVCONFIG_H
3284 #define AVUTIL_AVCONFIG_H
3285 EOF
3286
3287 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3288
3289 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3290
3291 cp_if_changed $TMPH libavutil/avconfig.h
3292
3293 test -n "$WARNINGS" && printf "\n$WARNINGS"
3294
3295 # build pkg-config files
3296
3297 pkgconfig_generate(){
3298 name=$1
3299 shortname=${name#lib}${build_suffix}
3300 comment=$2
3301 version=$3
3302 libs=$4
3303 requires=$5
3304 enabled ${name#lib} || return 0
3305 cat <<EOF > $name/$name.pc
3306 prefix=$prefix
3307 exec_prefix=\${prefix}
3308 libdir=$libdir
3309 includedir=$incdir
3310
3311 Name: $name
3312 Description: $comment
3313 Version: $version
3314 Requires: $(enabled shared || echo $requires)
3315 Requires.private: $(enabled shared && echo $requires)
3316 Conflicts:
3317 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3318 Libs.private: $(enabled shared && echo $libs)
3319 Cflags: -I\${includedir}
3320 EOF
3321 cat <<EOF > $name/$name-uninstalled.pc
3322 prefix=
3323 exec_prefix=
3324 libdir=\${pcfiledir}
3325 includedir=${source_path}
3326
3327 Name: $name
3328 Description: $comment
3329 Version: $version
3330 Requires: $requires
3331 Conflicts:
3332 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3333 Cflags: -I\${includedir}
3334 EOF
3335 }
3336
3337 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3338 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3339 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3340 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3341 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3342 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3343 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3344 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"