configure: remove --source-path option
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-postproc       disable libpostproc build
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code
110   --disable-vdpau          disable VDPAU code
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
115   --disable-everything     disable all components listed below
116   --disable-encoder=NAME   disable encoder NAME
117   --enable-encoder=NAME    enable encoder NAME
118   --disable-encoders       disable all encoders
119   --disable-decoder=NAME   disable decoder NAME
120   --enable-decoder=NAME    enable decoder NAME
121   --disable-decoders       disable all decoders
122   --disable-hwaccel=NAME   disable hwaccel NAME
123   --enable-hwaccel=NAME    enable hwaccel NAME
124   --disable-hwaccels       disable all hwaccels
125   --disable-muxer=NAME     disable muxer NAME
126   --enable-muxer=NAME      enable muxer NAME
127   --disable-muxers         disable all muxers
128   --disable-demuxer=NAME   disable demuxer NAME
129   --enable-demuxer=NAME    enable demuxer NAME
130   --disable-demuxers       disable all demuxers
131   --enable-parser=NAME     enable parser NAME
132   --disable-parser=NAME    disable parser NAME
133   --disable-parsers        disable all parsers
134   --enable-bsf=NAME        enable bitstream filter NAME
135   --disable-bsf=NAME       disable bitstream filter NAME
136   --disable-bsfs           disable all bitstream filters
137   --enable-protocol=NAME   enable protocol NAME
138   --disable-protocol=NAME  disable protocol NAME
139   --disable-protocols      disable all protocols
140   --disable-indev=NAME     disable input device NAME
141   --disable-outdev=NAME    disable output device NAME
142   --disable-indevs         disable input devices
143   --disable-outdevs        disable output devices
144   --disable-devices        disable all devices
145   --enable-filter=NAME     enable filter NAME
146   --disable-filter=NAME    disable filter NAME
147   --disable-filters        disable all filters
148   --list-decoders          show all available decoders
149   --list-encoders          show all available encoders
150   --list-hwaccels          show all available hardware accelerators
151   --list-muxers            show all available muxers
152   --list-demuxers          show all available demuxers
153   --list-parsers           show all available parsers
154   --list-protocols         show all available protocols
155   --list-bsfs              show all available bitstream filters
156   --list-indevs            show all available input devices
157   --list-outdevs           show all available output devices
158   --list-filters           show all available filters
159
160 External library support:
161   --enable-avisynth        enable reading of AVISynth script files [no]
162   --enable-bzlib           enable bzlib [autodetect]
163   --enable-frei0r          enable frei0r video filtering
164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
166   --enable-libopencv       enable video filtering via libopencv [no]
167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
168                            and libraw1394 [no]
169   --enable-libdirac        enable Dirac support via libdirac [no]
170   --enable-libfaac         enable FAAC support via libfaac [no]
171   --enable-libfreetype     enable libfreetype [no]
172   --enable-libgsm          enable GSM support via libgsm [no]
173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
174   --enable-libnut          enable NUT (de)muxing via libnut,
175                            native (de)muxer exists [no]
176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
179   --enable-libspeex        enable Speex decoding via libspeex [no]
180   --enable-libtheora       enable Theora encoding via libtheora [no]
181   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
184                            native implementation exists [no]
185   --enable-libvpx          enable VP8 support via libvpx [no]
186   --enable-libx264         enable H.264 encoding via x264 [no]
187   --enable-libxavs         enable AVS encoding via xavs [no]
188   --enable-libxvid         enable Xvid encoding via xvidcore,
189                            native MPEG-4/Xvid encoder exists [no]
190   --enable-mlib            enable Sun medialib [no]
191   --enable-zlib            enable zlib [autodetect]
192
193 Advanced options (experts only):
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-avx            disable AVX optimizations
227   --disable-armv5te        disable armv5te optimizations
228   --disable-armv6          disable armv6 optimizations
229   --disable-armv6t2        disable armv6t2 optimizations
230   --disable-armvfp         disable ARM VFP optimizations
231   --disable-iwmmxt         disable iwmmxt optimizations
232   --disable-mmi            disable MMI optimizations
233   --disable-neon           disable neon optimizations
234   --disable-vis            disable VIS optimizations
235   --disable-yasm           disable use of yasm assembler
236   --enable-pic             build position-independent code
237   --malloc-prefix=PFX      prefix malloc and related names with PFX
238   --enable-sram            allow use of on-chip SRAM
239   --disable-symver         disable symbol versioning
240
241 Developer options (useful when working on Libav itself):
242   --disable-debug          disable debugging symbols
243   --enable-debug=LEVEL     set the debug level [$debuglevel]
244   --disable-optimizations  disable compiler optimizations
245   --enable-extra-warnings  enable more compiler warnings
246   --samples=PATH           location of test samples for FATE, if not set use
247                            \$FATE_SAMPLES at make invocation time.
248
249 NOTE: Object files are built at the place where configure is launched.
250 EOF
251   exit 0
252 }
253
254 quotes='""'
255
256 log(){
257     echo "$@" >> $logfile
258 }
259
260 log_file(){
261     log BEGIN $1
262     pr -n -t $1 >> $logfile
263     log END $1
264 }
265
266 echolog(){
267     log "$@"
268     echo "$@"
269 }
270
271 warn(){
272     log "WARNING: $*"
273     WARNINGS="${WARNINGS}WARNING: $*\n"
274 }
275
276 die(){
277     echolog "$@"
278     cat <<EOF
279
280 If you think configure made a mistake, make sure you are using the latest
281 version from Git.  If the latest version fails, report the problem to the
282 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
283 EOF
284     if disabled logging; then
285         cat <<EOF
286 Rerun configure with logging enabled (do not use --disable-logging), and
287 include the log this produces with your report.
288 EOF
289     else
290 cat <<EOF
291 Include the log file "$logfile" produced by configure as this will help
292 solving the problem.
293 EOF
294     fi
295     exit 1
296 }
297
298 # Avoid locale weirdness, besides we really just want to translate ASCII.
299 toupper(){
300     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
301 }
302
303 tolower(){
304     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
305 }
306
307 c_escape(){
308     echo "$*" | sed 's/["\\]/\\\0/g'
309 }
310
311 sh_quote(){
312     v=$(echo "$1" | sed "s/'/'\\\\''/g")
313     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
314     echo "$v"
315 }
316
317 cleanws(){
318     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
319 }
320
321 filter(){
322     pat=$1
323     shift
324     for v; do
325         eval "case $v in $pat) echo $v ;; esac"
326     done
327 }
328
329 filter_out(){
330     pat=$1
331     shift
332     for v; do
333         eval "case $v in $pat) ;; *) echo $v ;; esac"
334     done
335 }
336
337 map(){
338     m=$1
339     shift
340     for v; do eval $m; done
341 }
342
343 set_all(){
344     value=$1
345     shift
346     for var in $*; do
347         eval $var=$value
348     done
349 }
350
351 set_weak(){
352     value=$1
353     shift
354     for var; do
355         eval : \${$var:=$value}
356     done
357 }
358
359 set_safe(){
360     var=$1
361     shift
362     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
363 }
364
365 get_safe(){
366     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
367 }
368
369 pushvar(){
370     for var in $*; do
371         eval level=\${${var}_level:=0}
372         eval ${var}_${level}="\$$var"
373         eval ${var}_level=$(($level+1))
374     done
375 }
376
377 popvar(){
378     for var in $*; do
379         eval level=\${${var}_level:-0}
380         test $level = 0 && continue
381         eval level=$(($level-1))
382         eval $var="\${${var}_${level}}"
383         eval ${var}_level=$level
384         eval unset ${var}_${level}
385     done
386 }
387
388 enable(){
389     set_all yes $*
390 }
391
392 disable(){
393     set_all no $*
394 }
395
396 enable_weak(){
397     set_weak yes $*
398 }
399
400 disable_weak(){
401     set_weak no $*
402 }
403
404 enable_safe(){
405     for var; do
406         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
407     done
408 }
409
410 disable_safe(){
411     for var; do
412         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
413     done
414 }
415
416 do_enable_deep(){
417     for var; do
418         enabled $var && continue
419         eval sel="\$${var}_select"
420         eval sgs="\$${var}_suggest"
421         pushvar var sgs
422         enable_deep $sel
423         popvar sgs
424         enable_deep_weak $sgs
425         popvar var
426     done
427 }
428
429 enable_deep(){
430     do_enable_deep $*
431     enable $*
432 }
433
434 enable_deep_weak(){
435     do_enable_deep $*
436     enable_weak $*
437 }
438
439 enabled(){
440     test "${1#!}" = "$1" && op== || op=!=
441     eval test "x\$${1#!}" $op "xyes"
442 }
443
444 disabled(){
445     test "${1#!}" = "$1" && op== || op=!=
446     eval test "x\$${1#!}" $op "xno"
447 }
448
449 enabled_all(){
450     for opt; do
451         enabled $opt || return 1
452     done
453 }
454
455 disabled_all(){
456     for opt; do
457         disabled $opt || return 1
458     done
459 }
460
461 enabled_any(){
462     for opt; do
463         enabled $opt && return 0
464     done
465 }
466
467 disabled_any(){
468     for opt; do
469         disabled $opt && return 0
470     done
471     return 1
472 }
473
474 set_default(){
475     for opt; do
476         eval : \${$opt:=\$${opt}_default}
477     done
478 }
479
480 is_in(){
481     value=$1
482     shift
483     for var in $*; do
484         [ $var = $value ] && return 0
485     done
486     return 1
487 }
488
489 check_deps(){
490     for cfg; do
491         cfg="${cfg#!}"
492         enabled ${cfg}_checking && die "Circular dependency for $cfg."
493         disabled ${cfg}_checking && continue
494         enable ${cfg}_checking
495
496         eval dep_all="\$${cfg}_deps"
497         eval dep_any="\$${cfg}_deps_any"
498         eval dep_sel="\$${cfg}_select"
499         eval dep_sgs="\$${cfg}_suggest"
500         eval dep_ifa="\$${cfg}_if"
501         eval dep_ifn="\$${cfg}_if_any"
502
503         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
504         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
505         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
506
507         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
508         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
509         enabled_all  $dep_all || disable $cfg
510         enabled_any  $dep_any || disable $cfg
511         disabled_any $dep_sel && disable $cfg
512
513         if enabled $cfg; then
514             eval dep_extralibs="\$${cfg}_extralibs"
515             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
516             enable_deep $dep_sel
517             enable_deep_weak $dep_sgs
518         fi
519
520         disable ${cfg}_checking
521     done
522 }
523
524 print_config_h(){
525     enabled $1 && v=1 || v=0
526     echo "#define $2 $v"
527 }
528
529 print_config_mak(){
530     enabled $1 && v= || v=!
531     echo "$v$2=yes"
532 }
533
534 print_config_asm(){
535     enabled $1 && echo "%define $2"
536 }
537
538 print_config(){
539     pfx=$1
540     files=$2
541     shift 2
542     for cfg; do
543         ucname="$(toupper $cfg)"
544         for f in $files; do
545             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
546         done
547     done
548 }
549
550 print_enabled(){
551     test "$1" = -n && end=" " && shift || end="\n"
552     suf=$1
553     shift
554     for v; do
555         enabled $v && printf "%s$end" ${v%$suf};
556     done
557 }
558
559 append(){
560     var=$1
561     shift
562     eval "$var=\"\$$var $*\""
563 }
564
565 prepend(){
566     var=$1
567     shift
568     eval "$var=\"$* \$$var\""
569 }
570
571 add_cppflags(){
572     append CPPFLAGS $($filter_cppflags "$@")
573 }
574
575 add_cflags(){
576     append CFLAGS $($filter_cflags "$@")
577 }
578
579 add_asflags(){
580     append ASFLAGS $($filter_asflags "$@")
581 }
582
583 add_ldflags(){
584     append LDFLAGS "$@"
585 }
586
587 add_extralibs(){
588     prepend extralibs "$@"
589 }
590
591 check_cmd(){
592     log "$@"
593     "$@" >> $logfile 2>&1
594 }
595
596 check_cc(){
597     log check_cc "$@"
598     cat > $TMPC
599     log_file $TMPC
600     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
601 }
602
603 check_cpp(){
604     log check_cpp "$@"
605     cat > $TMPC
606     log_file $TMPC
607     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
608 }
609
610 check_as(){
611     log check_as "$@"
612     cat > $TMPC
613     log_file $TMPC
614     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
615 }
616
617 check_asm(){
618     log check_asm "$@"
619     name="$1"
620     code="$2"
621     shift 2
622     disable $name
623     check_as "$@" <<EOF && enable $name
624 void foo(void){ __asm__ volatile($code); }
625 EOF
626 }
627
628 check_yasm(){
629     log check_yasm "$@"
630     echo "$1" > $TMPS
631     log_file $TMPS
632     shift 1
633     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
634 }
635
636 check_ld(){
637     log check_ld "$@"
638     flags=''
639     libs=''
640     for f; do
641         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
642     done
643     check_cc $($filter_cflags $flags) || return
644     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
645 }
646
647 check_cppflags(){
648     log check_cppflags "$@"
649     set -- $($filter_cppflags "$@")
650     check_cc "$@" <<EOF && append CPPFLAGS "$@"
651 int x;
652 EOF
653 }
654
655 check_cflags(){
656     log check_cflags "$@"
657     set -- $($filter_cflags "$@")
658     check_cc "$@" <<EOF && append CFLAGS "$@"
659 int x;
660 EOF
661 }
662
663 test_ldflags(){
664     log test_ldflags "$@"
665     check_ld "$@" <<EOF
666 int main(void){ return 0; }
667 EOF
668 }
669
670 check_ldflags(){
671     log check_ldflags "$@"
672     test_ldflags "$@" && add_ldflags "$@"
673 }
674
675 check_header(){
676     log check_header "$@"
677     header=$1
678     shift
679     disable_safe $header
680     check_cpp "$@" <<EOF && enable_safe $header
681 #include <$header>
682 int x;
683 EOF
684 }
685
686 check_func(){
687     log check_func "$@"
688     func=$1
689     shift
690     disable $func
691     check_ld "$@" <<EOF && enable $func
692 extern int $func();
693 int main(void){ $func(); }
694 EOF
695 }
696
697 check_mathfunc(){
698     log check_mathfunc "$@"
699     func=$1
700     shift
701     disable $func
702     check_ld "$@" <<EOF && enable $func
703 #include <math.h>
704 float foo(float f) { return $func(f); }
705 int main(void){ return 0; }
706 EOF
707 }
708
709 check_func_headers(){
710     log check_func_headers "$@"
711     headers=$1
712     funcs=$2
713     shift 2
714     {
715         for hdr in $headers; do
716             echo "#include <$hdr>"
717         done
718         for func in $funcs; do
719             echo "long check_$func(void) { return (long) $func; }"
720         done
721         echo "int main(void) { return 0; }"
722     } | check_ld "$@" && enable $funcs && enable_safe $headers
723 }
724
725 check_cpp_condition(){
726     log check_cpp_condition "$@"
727     header=$1
728     condition=$2
729     shift 2
730     check_cpp $($filter_cppflags "$@") <<EOF
731 #include <$header>
732 #if !($condition)
733 #error "unsatisfied condition: $condition"
734 #endif
735 EOF
736 }
737
738 check_lib(){
739     log check_lib "$@"
740     header="$1"
741     func="$2"
742     shift 2
743     check_header $header && check_func $func "$@" && add_extralibs "$@"
744 }
745
746 check_lib2(){
747     log check_lib2 "$@"
748     headers="$1"
749     funcs="$2"
750     shift 2
751     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
752 }
753
754 check_pkg_config(){
755     log check_pkg_config "$@"
756     pkg="$1"
757     headers="$2"
758     funcs="$3"
759     shift 3
760     $pkg_config --exists $pkg || return
761     pkg_cflags=$($pkg_config --cflags $pkg)
762     pkg_libs=$($pkg_config --libs $pkg)
763     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
764         set_safe ${pkg}_cflags $pkg_cflags   &&
765         set_safe ${pkg}_libs   $pkg_libs
766 }
767
768 check_exec(){
769     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
770 }
771
772 check_exec_crash(){
773     code=$(cat)
774
775     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
776     # are safe but may not be available everywhere.  Thus we use
777     # raise(SIGTERM) instead.  The check is run in a subshell so we
778     # can redirect the "Terminated" message from the shell.  SIGBUS
779     # is not defined by standard C so it is used conditionally.
780
781     (check_exec "$@") >> $logfile 2>&1 <<EOF
782 #include <signal.h>
783 static void sighandler(int sig){
784     raise(SIGTERM);
785 }
786 int main(void){
787     signal(SIGILL, sighandler);
788     signal(SIGFPE, sighandler);
789     signal(SIGSEGV, sighandler);
790 #ifdef SIGBUS
791     signal(SIGBUS, sighandler);
792 #endif
793     { $code }
794 }
795 EOF
796 }
797
798 check_type(){
799     log check_type "$@"
800     headers=$1
801     type=$2
802     shift 2
803     disable_safe "$type"
804     incs=""
805     for hdr in $headers; do
806         incs="$incs
807 #include <$hdr>"
808     done
809     check_cc "$@" <<EOF && enable_safe "$type"
810 $incs
811 $type v;
812 EOF
813 }
814
815 check_struct(){
816     log check_type "$@"
817     headers=$1
818     struct=$2
819     member=$3
820     shift 3
821     disable_safe "${struct}_${member}"
822     incs=""
823     for hdr in $headers; do
824         incs="$incs
825 #include <$hdr>"
826     done
827     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
828 $incs
829 const void *p = &(($struct *)0)->$member;
830 EOF
831 }
832
833 require(){
834     name="$1"
835     header="$2"
836     func="$3"
837     shift 3
838     check_lib $header $func "$@" || die "ERROR: $name not found"
839 }
840
841 require2(){
842     name="$1"
843     headers="$2"
844     func="$3"
845     shift 3
846     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
847 }
848
849 require_pkg_config(){
850     pkg="$1"
851     check_pkg_config "$@" || die "ERROR: $pkg not found"
852     add_cflags    $(get_safe ${pkg}_cflags)
853     add_extralibs $(get_safe ${pkg}_libs)
854 }
855
856 check_host_cc(){
857     log check_host_cc "$@"
858     cat > $TMPC
859     log_file $TMPC
860     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
861 }
862
863 check_host_cflags(){
864     log check_host_cflags "$@"
865     check_host_cc "$@" <<EOF && append host_cflags "$@"
866 int x;
867 EOF
868 }
869
870 apply(){
871     file=$1
872     shift
873     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
874 }
875
876 cp_if_changed(){
877     cmp -s "$1" "$2" &&
878         echo "$2 is unchanged" ||
879         cp -f "$1" "$2"
880 }
881
882 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
883 # system-dependent things.
884
885 COMPONENT_LIST="
886     bsfs
887     decoders
888     demuxers
889     encoders
890     filters
891     hwaccels
892     indevs
893     muxers
894     outdevs
895     parsers
896     protocols
897 "
898
899 CONFIG_LIST="
900     $COMPONENT_LIST
901     aandct
902     ac3dsp
903     avcodec
904     avdevice
905     avfilter
906     avformat
907     avisynth
908     bzlib
909     dct
910     doc
911     dwt
912     dxva2
913     fastdiv
914     ffmpeg
915     ffplay
916     ffprobe
917     ffserver
918     fft
919     frei0r
920     golomb
921     gpl
922     gray
923     h264dsp
924     h264pred
925     hardcoded_tables
926     huffman
927     libdc1394
928     libdirac
929     libfaac
930     libfreetype
931     libgsm
932     libmp3lame
933     libnut
934     libopencore_amrnb
935     libopencore_amrwb
936     libopencv
937     libopenjpeg
938     librtmp
939     libschroedinger
940     libspeex
941     libtheora
942     libvo_aacenc
943     libvo_amrwbenc
944     libvorbis
945     libvpx
946     libx264
947     libxavs
948     libxvid
949     lpc
950     lsp
951     mdct
952     memalign_hack
953     mlib
954     mpegaudiodsp
955     network
956     nonfree
957     pic
958     postproc
959     rdft
960     rtpdec
961     runtime_cpudetect
962     shared
963     sinewin
964     small
965     sram
966     static
967     swscale
968     swscale_alpha
969     vaapi
970     vdpau
971     version3
972     x11grab
973     zlib
974 "
975
976 THREADS_LIST='
977     pthreads
978     w32threads
979 '
980
981 ARCH_LIST='
982     alpha
983     arm
984     avr32
985     avr32_ap
986     avr32_uc
987     bfin
988     ia64
989     m68k
990     mips
991     mips64
992     parisc
993     ppc
994     ppc64
995     s390
996     sh4
997     sparc
998     sparc64
999     tomi
1000     x86
1001     x86_32
1002     x86_64
1003 '
1004
1005 ARCH_EXT_LIST='
1006     altivec
1007     amd3dnow
1008     amd3dnowext
1009     armv5te
1010     armv6
1011     armv6t2
1012     armvfp
1013     avx
1014     iwmmxt
1015     mmi
1016     mmx
1017     mmx2
1018     neon
1019     ppc4xx
1020     sse
1021     ssse3
1022     vfpv3
1023     vis
1024 '
1025
1026 HAVE_LIST_PUB='
1027     bigendian
1028     fast_unaligned
1029 '
1030
1031 HAVE_LIST="
1032     $ARCH_EXT_LIST
1033     $HAVE_LIST_PUB
1034     $THREADS_LIST
1035     aligned_stack
1036     alsa_asoundlib_h
1037     altivec_h
1038     arpa_inet_h
1039     attribute_may_alias
1040     attribute_packed
1041     bswap
1042     closesocket
1043     cmov
1044     dcbzl
1045     dev_bktr_ioctl_bt848_h
1046     dev_bktr_ioctl_meteor_h
1047     dev_ic_bt8xx_h
1048     dev_video_meteor_ioctl_meteor_h
1049     dev_video_bktr_ioctl_bt848_h
1050     dlfcn_h
1051     dlopen
1052     dos_paths
1053     ebp_available
1054     ebx_available
1055     exp2
1056     exp2f
1057     fast_64bit
1058     fast_clz
1059     fast_cmov
1060     fcntl
1061     fork
1062     getaddrinfo
1063     gethrtime
1064     GetProcessMemoryInfo
1065     GetProcessTimes
1066     getrusage
1067     gnu_as
1068     struct_rusage_ru_maxrss
1069     ibm_asm
1070     inet_aton
1071     inline_asm
1072     isatty
1073     ldbrx
1074     libdc1394_1
1075     libdc1394_2
1076     llrint
1077     llrintf
1078     local_aligned_16
1079     local_aligned_8
1080     localtime_r
1081     log2
1082     log2f
1083     loongson
1084     lrint
1085     lrintf
1086     lzo1x_999_compress
1087     machine_ioctl_bt848_h
1088     machine_ioctl_meteor_h
1089     malloc_h
1090     MapViewOfFile
1091     memalign
1092     mkstemp
1093     mmap
1094     pld
1095     posix_memalign
1096     round
1097     roundf
1098     sdl
1099     sdl_video_size
1100     setmode
1101     sndio_h
1102     socklen_t
1103     soundcard_h
1104     poll_h
1105     setrlimit
1106     strerror_r
1107     strtok_r
1108     struct_addrinfo
1109     struct_ipv6_mreq
1110     struct_sockaddr_in6
1111     struct_sockaddr_sa_len
1112     struct_sockaddr_storage
1113     symver
1114     symver_gnu_asm
1115     symver_asm_label
1116     sys_mman_h
1117     sys_resource_h
1118     sys_select_h
1119     sys_soundcard_h
1120     sys_videoio_h
1121     ten_operands
1122     threads
1123     trunc
1124     truncf
1125     vfp_args
1126     VirtualAlloc
1127     winsock2_h
1128     xform_asm
1129     xmm_clobbers
1130     yasm
1131 "
1132
1133 # options emitted with CONFIG_ prefix but not available on command line
1134 CONFIG_EXTRA="
1135     avutil
1136     gplv3
1137     lgplv3
1138 "
1139
1140 CMDLINE_SELECT="
1141     $ARCH_EXT_LIST
1142     $CONFIG_LIST
1143     $THREADS_LIST
1144     asm
1145     cross_compile
1146     debug
1147     extra_warnings
1148     logging
1149     optimizations
1150     symver
1151     yasm
1152 "
1153
1154 PATHS_LIST='
1155     bindir
1156     datadir
1157     incdir
1158     libdir
1159     mandir
1160     prefix
1161     shlibdir
1162 '
1163
1164 CMDLINE_SET="
1165     $PATHS_LIST
1166     ar
1167     arch
1168     as
1169     build_suffix
1170     cc
1171     cpu
1172     cross_prefix
1173     dep_cc
1174     extra_version
1175     host_cc
1176     host_cflags
1177     host_ldflags
1178     host_libs
1179     host_os
1180     ld
1181     logfile
1182     malloc_prefix
1183     nm
1184     pkg_config
1185     samples
1186     sysinclude
1187     sysroot
1188     target_exec
1189     target_os
1190     target_path
1191 "
1192
1193 CMDLINE_APPEND="
1194     extra_cflags
1195 "
1196
1197 # code dependency declarations
1198
1199 # architecture extensions
1200
1201 armv5te_deps="arm"
1202 armv6_deps="arm"
1203 armv6t2_deps="arm"
1204 armvfp_deps="arm"
1205 iwmmxt_deps="arm"
1206 neon_deps="arm"
1207 vfpv3_deps="armvfp"
1208
1209 mmi_deps="mips"
1210
1211 altivec_deps="ppc"
1212 ppc4xx_deps="ppc"
1213
1214 vis_deps="sparc"
1215
1216 x86_64_suggest="cmov fast_cmov"
1217 amd3dnow_deps="mmx"
1218 amd3dnowext_deps="amd3dnow"
1219 mmx_deps="x86"
1220 mmx2_deps="mmx"
1221 sse_deps="mmx"
1222 ssse3_deps="sse"
1223 avx_deps="ssse3"
1224
1225 aligned_stack_if_any="ppc x86"
1226 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1227 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1228 fast_unaligned_if_any="armv6 ppc x86"
1229
1230 need_memalign="altivec neon sse"
1231 inline_asm_deps="!tms470"
1232
1233 symver_if_any="symver_asm_label symver_gnu_asm"
1234
1235 # subsystems
1236 dct_select="rdft"
1237 mdct_select="fft"
1238 rdft_select="fft"
1239 mpegaudiodsp_select="dct"
1240
1241 # decoders / encoders / hardware accelerators
1242 aac_decoder_select="mdct sinewin"
1243 aac_encoder_select="mdct sinewin"
1244 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1245 ac3_decoder_select="mdct ac3dsp ac3_parser"
1246 ac3_encoder_select="mdct ac3dsp"
1247 ac3_fixed_encoder_select="mdct ac3dsp"
1248 alac_encoder_select="lpc"
1249 amrnb_decoder_select="lsp"
1250 amrwb_decoder_select="lsp"
1251 atrac1_decoder_select="mdct sinewin"
1252 atrac3_decoder_select="mdct"
1253 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1254 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1255 cavs_decoder_select="golomb"
1256 cook_decoder_select="mdct sinewin"
1257 cscd_decoder_suggest="zlib"
1258 dca_decoder_select="mdct"
1259 dnxhd_encoder_select="aandct"
1260 dxa_decoder_select="zlib"
1261 eac3_decoder_select="ac3_decoder"
1262 eac3_encoder_select="mdct ac3dsp"
1263 eamad_decoder_select="aandct"
1264 eatgq_decoder_select="aandct"
1265 eatqi_decoder_select="aandct"
1266 ffv1_decoder_select="golomb"
1267 flac_decoder_select="golomb"
1268 flac_encoder_select="golomb lpc"
1269 flashsv_decoder_select="zlib"
1270 flashsv_encoder_select="zlib"
1271 flv_decoder_select="h263_decoder"
1272 flv_encoder_select="h263_encoder"
1273 fraps_decoder_select="huffman"
1274 h261_encoder_select="aandct"
1275 h263_decoder_select="h263_parser"
1276 h263_encoder_select="aandct"
1277 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1278 h263i_decoder_select="h263_decoder"
1279 h263p_encoder_select="h263_encoder"
1280 h264_decoder_select="golomb h264dsp h264pred"
1281 h264_dxva2_hwaccel_deps="dxva2api_h"
1282 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1283 h264_vaapi_hwaccel_select="vaapi"
1284 h264_vdpau_decoder_select="vdpau h264_decoder"
1285 imc_decoder_select="fft mdct sinewin"
1286 jpegls_decoder_select="golomb"
1287 jpegls_encoder_select="golomb"
1288 ljpeg_encoder_select="aandct"
1289 loco_decoder_select="golomb"
1290 mjpeg_encoder_select="aandct"
1291 mlp_decoder_select="mlp_parser"
1292 mp1_decoder_select="mpegaudiodsp"
1293 mp2_decoder_select="mpegaudiodsp"
1294 mp3adu_decoder_select="mpegaudiodsp"
1295 mp3_decoder_select="mpegaudiodsp"
1296 mp3on4_decoder_select="mpegaudiodsp"
1297 mp1float_decoder_select="mpegaudiodsp"
1298 mp2float_decoder_select="mpegaudiodsp"
1299 mp3adufloat_decoder_select="mpegaudiodsp"
1300 mp3float_decoder_select="mpegaudiodsp"
1301 mp3on4float_decoder_select="mpegaudiodsp"
1302 mpeg1video_encoder_select="aandct"
1303 mpeg2video_encoder_select="aandct"
1304 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1305 mpeg4_encoder_select="h263_encoder"
1306 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1307 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1308 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1309 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1310 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1311 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1312 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1313 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1314 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1315 msmpeg4v1_decoder_select="h263_decoder"
1316 msmpeg4v1_encoder_select="h263_encoder"
1317 msmpeg4v2_decoder_select="h263_decoder"
1318 msmpeg4v2_encoder_select="h263_encoder"
1319 msmpeg4v3_decoder_select="h263_decoder"
1320 msmpeg4v3_encoder_select="h263_encoder"
1321 nellymoser_decoder_select="mdct sinewin"
1322 nellymoser_encoder_select="mdct sinewin"
1323 png_decoder_select="zlib"
1324 png_encoder_select="zlib"
1325 qcelp_decoder_select="lsp"
1326 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1327 ra_144_encoder_select="lpc"
1328 rv10_decoder_select="h263_decoder"
1329 rv10_encoder_select="h263_encoder"
1330 rv20_decoder_select="h263_decoder"
1331 rv20_encoder_select="h263_encoder"
1332 rv30_decoder_select="golomb h264pred"
1333 rv40_decoder_select="golomb h264pred"
1334 shorten_decoder_select="golomb"
1335 sipr_decoder_select="lsp"
1336 snow_decoder_select="dwt"
1337 snow_encoder_select="aandct dwt"
1338 svq1_encoder_select="aandct"
1339 svq3_decoder_select="golomb h264dsp h264pred"
1340 svq3_decoder_suggest="zlib"
1341 theora_decoder_select="vp3_decoder"
1342 tiff_decoder_suggest="zlib"
1343 tiff_encoder_suggest="zlib"
1344 truehd_decoder_select="mlp_decoder"
1345 tscc_decoder_select="zlib"
1346 twinvq_decoder_select="mdct lsp sinewin"
1347 vc1_decoder_select="h263_decoder"
1348 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1349 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1350 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1351 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1352 vorbis_decoder_select="mdct"
1353 vorbis_encoder_select="mdct"
1354 vp6_decoder_select="huffman"
1355 vp6a_decoder_select="vp6_decoder"
1356 vp6f_decoder_select="vp6_decoder"
1357 vp8_decoder_select="h264pred"
1358 wmapro_decoder_select="mdct sinewin"
1359 wmav1_decoder_select="mdct sinewin"
1360 wmav1_encoder_select="mdct sinewin"
1361 wmav2_decoder_select="mdct sinewin"
1362 wmav2_encoder_select="mdct sinewin"
1363 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1364 wmv1_decoder_select="h263_decoder"
1365 wmv1_encoder_select="h263_encoder"
1366 wmv2_decoder_select="h263_decoder"
1367 wmv2_encoder_select="h263_encoder"
1368 wmv3_decoder_select="vc1_decoder"
1369 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1370 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1371 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1372 zlib_decoder_select="zlib"
1373 zlib_encoder_select="zlib"
1374 zmbv_decoder_select="zlib"
1375 zmbv_encoder_select="zlib"
1376
1377 vaapi_deps="va_va_h"
1378 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1379
1380 # parsers
1381 h264_parser_select="golomb h264dsp h264pred"
1382
1383 # external libraries
1384 libdirac_decoder_deps="libdirac !libschroedinger"
1385 libdirac_encoder_deps="libdirac"
1386 libfaac_encoder_deps="libfaac"
1387 libgsm_decoder_deps="libgsm"
1388 libgsm_encoder_deps="libgsm"
1389 libgsm_ms_decoder_deps="libgsm"
1390 libgsm_ms_encoder_deps="libgsm"
1391 libmp3lame_encoder_deps="libmp3lame"
1392 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1393 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1394 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1395 libopenjpeg_decoder_deps="libopenjpeg"
1396 libschroedinger_decoder_deps="libschroedinger"
1397 libschroedinger_encoder_deps="libschroedinger"
1398 libspeex_decoder_deps="libspeex"
1399 libtheora_encoder_deps="libtheora"
1400 libvo_aacenc_encoder_deps="libvo_aacenc"
1401 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1402 libvorbis_encoder_deps="libvorbis"
1403 libvpx_decoder_deps="libvpx"
1404 libvpx_encoder_deps="libvpx"
1405 libx264_encoder_deps="libx264"
1406 libxavs_encoder_deps="libxavs"
1407 libxvid_encoder_deps="libxvid"
1408
1409 # demuxers / muxers
1410 ac3_demuxer_select="ac3_parser"
1411 asf_stream_muxer_select="asf_muxer"
1412 avisynth_demuxer_deps="avisynth"
1413 dirac_demuxer_select="dirac_parser"
1414 eac3_demuxer_select="ac3_parser"
1415 flac_demuxer_select="flac_parser"
1416 ipod_muxer_select="mov_muxer"
1417 libnut_demuxer_deps="libnut"
1418 libnut_muxer_deps="libnut"
1419 matroska_audio_muxer_select="matroska_muxer"
1420 matroska_demuxer_suggest="zlib bzlib"
1421 mov_demuxer_suggest="zlib"
1422 mp3_demuxer_select="mpegaudio_parser"
1423 mp4_muxer_select="mov_muxer"
1424 mpegtsraw_demuxer_select="mpegts_demuxer"
1425 mxf_d10_muxer_select="mxf_muxer"
1426 ogg_demuxer_select="golomb"
1427 psp_muxer_select="mov_muxer"
1428 rtp_demuxer_select="sdp_demuxer"
1429 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1430 rtsp_demuxer_select="http_protocol rtpdec"
1431 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1432 sap_demuxer_select="sdp_demuxer"
1433 sap_muxer_select="rtp_muxer rtp_protocol"
1434 sdp_demuxer_select="rtpdec"
1435 spdif_muxer_select="aac_parser"
1436 tg2_muxer_select="mov_muxer"
1437 tgp_muxer_select="mov_muxer"
1438 w64_demuxer_deps="wav_demuxer"
1439
1440 # indevs / outdevs
1441 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1442 alsa_outdev_deps="alsa_asoundlib_h"
1443 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1444 dv1394_indev_deps="dv1394 dv_demuxer"
1445 fbdev_indev_deps="linux_fb_h"
1446 jack_indev_deps="jack_jack_h"
1447 libdc1394_indev_deps="libdc1394"
1448 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1449 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1450 sndio_indev_deps="sndio_h"
1451 sndio_outdev_deps="sndio_h"
1452 v4l_indev_deps="linux_videodev_h"
1453 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1454 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1455 vfwcap_indev_extralibs="-lavicap32"
1456 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1457 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1458
1459 # protocols
1460 gopher_protocol_deps="network"
1461 http_protocol_deps="network"
1462 http_protocol_select="tcp_protocol"
1463 mmsh_protocol_select="http_protocol"
1464 mmst_protocol_deps="network"
1465 rtmp_protocol_select="tcp_protocol"
1466 rtp_protocol_select="udp_protocol"
1467 tcp_protocol_deps="network"
1468 udp_protocol_deps="network"
1469
1470 # filters
1471 blackframe_filter_deps="gpl"
1472 cropdetect_filter_deps="gpl"
1473 drawtext_filter_deps="libfreetype"
1474 frei0r_filter_deps="frei0r dlopen strtok_r"
1475 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1476 hqdn3d_filter_deps="gpl"
1477 ocv_filter_deps="libopencv"
1478 scale_filter_deps="swscale"
1479 yadif_filter_deps="gpl"
1480
1481 # libraries
1482 avdevice_deps="avcodec avformat"
1483 avformat_deps="avcodec"
1484 postproc_deps="gpl"
1485
1486 # programs
1487 ffmpeg_deps="avcodec avformat swscale"
1488 ffmpeg_select="buffer_filter"
1489 ffplay_deps="avcodec avformat swscale sdl"
1490 ffplay_select="rdft"
1491 ffprobe_deps="avcodec avformat"
1492 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1493 ffserver_extralibs='$ldl'
1494
1495 doc_deps="texi2html"
1496
1497 # tests
1498
1499 test_deps(){
1500     suf1=$1
1501     suf2=$2
1502     shift 2
1503     for v; do
1504         dep=${v%=*}
1505         tests=${v#*=}
1506         for name in ${tests}; do
1507             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1508         done
1509     done
1510 }
1511
1512 set_ne_test_deps(){
1513     eval ${1}_be_test_deps="bigendian"
1514     eval ${1}_le_test_deps="!bigendian"
1515 }
1516
1517 test_deps _encoder _decoder                                             \
1518     adpcm_g726=g726                                                     \
1519     adpcm_ima_qt                                                        \
1520     adpcm_ima_wav                                                       \
1521     adpcm_ms                                                            \
1522     adpcm_swf                                                           \
1523     adpcm_yamaha=adpcm_yam                                              \
1524     alac                                                                \
1525     asv1                                                                \
1526     asv2                                                                \
1527     bmp                                                                 \
1528     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1529     dvvideo="dv dv50"                                                   \
1530     ffv1                                                                \
1531     flac                                                                \
1532     flashsv                                                             \
1533     flv                                                                 \
1534     gif                                                                 \
1535     h261                                                                \
1536     h263="h263 h263p"                                                   \
1537     huffyuv                                                             \
1538     jpegls                                                              \
1539     mjpeg="jpg mjpeg ljpeg"                                             \
1540     mp2                                                                 \
1541     mpeg1video="mpeg mpeg1b"                                            \
1542     mpeg2video="mpeg2 mpeg2thread"                                      \
1543     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1544     msmpeg4v3=msmpeg4                                                   \
1545     msmpeg4v2                                                           \
1546     pbm=pbmpipe                                                         \
1547     pcx                                                                 \
1548     pgm="pgm pgmpipe"                                                   \
1549     png                                                                 \
1550     ppm="ppm ppmpipe"                                                   \
1551     rawvideo="rgb yuv"                                                  \
1552     roq                                                                 \
1553     rv10                                                                \
1554     rv20                                                                \
1555     sgi                                                                 \
1556     snow="snow snowll"                                                  \
1557     svq1                                                                \
1558     targa=tga                                                           \
1559     tiff                                                                \
1560     wmav1                                                               \
1561     wmav2                                                               \
1562     wmv1                                                                \
1563     wmv2                                                                \
1564
1565 test_deps _muxer _demuxer                                               \
1566     aiff                                                                \
1567     pcm_alaw=alaw                                                       \
1568     asf                                                                 \
1569     au                                                                  \
1570     avi                                                                 \
1571     dv=dv_fmt                                                           \
1572     ffm                                                                 \
1573     flv=flv_fmt                                                         \
1574     gxf                                                                 \
1575     matroska=mkv                                                        \
1576     mmf                                                                 \
1577     mov                                                                 \
1578     pcm_mulaw=mulaw                                                     \
1579     mxf                                                                 \
1580     nut                                                                 \
1581     ogg                                                                 \
1582     rawvideo=pixfmt                                                     \
1583     rm                                                                  \
1584     swf                                                                 \
1585     mpegts=ts                                                           \
1586     voc                                                                 \
1587     wav                                                                 \
1588     yuv4mpegpipe=yuv4mpeg                                               \
1589
1590 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1591 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1592
1593 set_ne_test_deps pixdesc
1594 set_ne_test_deps pixfmts_copy
1595 set_ne_test_deps pixfmts_crop
1596 set_ne_test_deps pixfmts_hflip
1597 set_ne_test_deps pixfmts_null
1598 set_ne_test_deps pixfmts_pad
1599 set_ne_test_deps pixfmts_scale
1600 set_ne_test_deps pixfmts_vflip
1601
1602 # default parameters
1603
1604 logfile="config.log"
1605
1606 # installation paths
1607 prefix_default="/usr/local"
1608 bindir_default='${prefix}/bin'
1609 datadir_default='${prefix}/share/ffmpeg'
1610 incdir_default='${prefix}/include'
1611 libdir_default='${prefix}/lib'
1612 mandir_default='${prefix}/share/man'
1613 shlibdir_default="$libdir_default"
1614
1615 # toolchain
1616 ar_default="ar"
1617 cc_default="gcc"
1618 cc_version=\"unknown\"
1619 host_cc_default="gcc"
1620 ln_s="ln -sf"
1621 nm_default="nm"
1622 objformat="elf"
1623 pkg_config_default=pkg-config
1624 ranlib="ranlib"
1625 yasmexe="yasm"
1626 nogas=":"
1627
1628 nm_opts='-g'
1629
1630 # machine
1631 arch_default=$(uname -m)
1632 cpu="generic"
1633
1634 # OS
1635 target_os_default=$(tolower $(uname -s))
1636 host_os=$target_os_default
1637
1638 # configurable options
1639 enable avcodec
1640 enable avdevice
1641 enable avfilter
1642 enable avformat
1643 enable avutil
1644 enable asm
1645 enable debug
1646 enable doc
1647 enable fastdiv
1648 enable ffmpeg
1649 enable ffplay
1650 enable ffprobe
1651 enable ffserver
1652 enable network
1653 enable optimizations
1654 enable postproc
1655 enable protocols
1656 enable static
1657 enable swscale
1658 enable swscale_alpha
1659
1660 # build settings
1661 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1662 FFSERVERLDFLAGS=-Wl,-E
1663 LIBPREF="lib"
1664 LIBSUF=".a"
1665 FULLNAME='$(NAME)$(BUILDSUF)'
1666 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1667 SLIBPREF="lib"
1668 SLIBSUF=".so"
1669 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1670 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1671 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1672 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1673
1674 CC_O='-o $@'
1675
1676 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1677 host_libs='-lm'
1678
1679 target_path='$(CURDIR)'
1680
1681 # since the object filename is not given with the -MM flag, the compiler
1682 # is only able to print the basename, and we must add the path ourselves
1683 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1684 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1685
1686 # find source path
1687 source_path="$(dirname "$0")"
1688 enable source_path_used
1689 if test -f configure; then
1690     source_path="$(pwd)"
1691     disable source_path_used
1692 else
1693     source_path="$(cd "$source_path"; pwd)"
1694     echo "$source_path" | grep -q '[[:blank:]]' &&
1695         die "Out of tree builds are impossible with whitespace in source path."
1696     test -e "$source_path/config.h" &&
1697         die "Out of tree builds are impossible with config.h in source dir."
1698 fi
1699
1700 for v in "$@"; do
1701     r=${v#*=}
1702     l=${v%"$r"}
1703     r=$(sh_quote "$r")
1704     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1705 done
1706
1707 find_things(){
1708     thing=$1
1709     pattern=$2
1710     file=$source_path/$3
1711     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1712 }
1713
1714 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1715 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1716 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1717 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1718 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1719 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1720 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1721 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1722 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1723 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1724 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1725
1726 find_tests(){
1727     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1728 }
1729
1730 ACODEC_TESTS=$(find_tests acodec)
1731 VCODEC_TESTS=$(find_tests vsynth1)
1732 LAVF_TESTS=$(find_tests lavf)
1733 LAVFI_TESTS=$(find_tests lavfi)
1734 SEEK_TESTS=$(find_tests seek seek_)
1735
1736 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1737
1738 for n in $COMPONENT_LIST; do
1739     v=$(toupper ${n%s})_LIST
1740     eval enable \$$v
1741     eval ${n}_if_any="\$$v"
1742 done
1743
1744 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1745
1746 die_unknown(){
1747     echo "Unknown option \"$1\"."
1748     echo "See $0 --help for available options."
1749     exit 1
1750 }
1751
1752 show_list() {
1753     suffix=_$1
1754     shift
1755     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1756     exit 0
1757 }
1758
1759 for opt do
1760     optval="${opt#*=}"
1761     case "$opt" in
1762     --extra-ldflags=*) add_ldflags $optval
1763     ;;
1764     --extra-libs=*) add_extralibs $optval
1765     ;;
1766     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1767     ;;
1768     --enable-debug=*) debuglevel="$optval"
1769     ;;
1770     --disable-everything)
1771     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1772     ;;
1773     --enable-*=*|--disable-*=*)
1774     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1775     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1776     eval list=\$$(toupper $thing)_LIST
1777     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1778     $action $(filter "$name" $list)
1779     ;;
1780     --enable-?*|--disable-?*)
1781     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1782     if is_in $option $COMPONENT_LIST; then
1783         test $action = disable && action=unset
1784         eval $action \$$(toupper ${option%s})_LIST
1785     elif is_in $option $CMDLINE_SELECT; then
1786         $action $option
1787     else
1788         die_unknown $opt
1789     fi
1790     ;;
1791     --list-*)
1792         NAME="${opt#--list-}"
1793         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1794         NAME=${NAME%s}
1795         eval show_list $NAME \$$(toupper $NAME)_LIST
1796     ;;
1797     --help|-h) show_help
1798     ;;
1799     *)
1800     optname="${opt%%=*}"
1801     optname="${optname#--}"
1802     optname=$(echo "$optname" | sed 's/-/_/g')
1803     if is_in $optname $CMDLINE_SET; then
1804         eval $optname='$optval'
1805     elif is_in $optname $CMDLINE_APPEND; then
1806         append $optname "$optval"
1807     else
1808          die_unknown $opt
1809     fi
1810     ;;
1811     esac
1812 done
1813
1814 disabled logging && logfile=/dev/null
1815
1816 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1817 set >> $logfile
1818
1819 test -n "$cross_prefix" && enable cross_compile
1820
1821 if enabled cross_compile; then
1822     test -n "$arch" && test -n "$target_os" ||
1823         die "Must specify target arch and OS when cross-compiling"
1824 fi
1825
1826 set_default arch target_os
1827
1828 ar_default="${cross_prefix}${ar_default}"
1829 cc_default="${cross_prefix}${cc_default}"
1830 nm_default="${cross_prefix}${nm_default}"
1831 pkg_config_default="${cross_prefix}${pkg_config_default}"
1832 ranlib="${cross_prefix}${ranlib}"
1833
1834 sysinclude_default="${sysroot}/usr/include"
1835
1836 set_default cc nm pkg_config sysinclude
1837 enabled cross_compile || host_cc_default=$cc
1838 set_default host_cc
1839
1840 if ! $pkg_config --version >/dev/null 2>&1; then
1841     warn "$pkg_config not found, library detection may fail."
1842     pkg_config=false
1843 fi
1844
1845 exesuf() {
1846     case $1 in
1847         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1848     esac
1849 }
1850
1851 EXESUF=$(exesuf $target_os)
1852 HOSTEXESUF=$(exesuf $host_os)
1853
1854 # set temporary file name
1855 : ${TMPDIR:=$TEMPDIR}
1856 : ${TMPDIR:=$TMP}
1857 : ${TMPDIR:=/tmp}
1858
1859 if ! check_cmd mktemp -u XXXXXX; then
1860     # simple replacement for missing mktemp
1861     # NOT SAFE FOR GENERAL USE
1862     mktemp(){
1863         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1864     }
1865 fi
1866
1867 tmpfile(){
1868     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1869         (set -C; exec > $tmp) 2>/dev/null ||
1870         die "Unable to create temporary file in $TMPDIR."
1871     append TMPFILES $tmp
1872     eval $1=$tmp
1873 }
1874
1875 trap 'rm -f -- $TMPFILES' EXIT
1876
1877 tmpfile TMPC  .c
1878 tmpfile TMPE  $EXESUF
1879 tmpfile TMPH  .h
1880 tmpfile TMPO  .o
1881 tmpfile TMPS  .S
1882 tmpfile TMPV  .ver
1883 tmpfile TMPSH .sh
1884 tmpfile TMPASM .asm
1885
1886 unset -f mktemp
1887
1888 chmod +x $TMPE
1889
1890 # make sure we can execute files in $TMPDIR
1891 cat > $TMPSH 2>> $logfile <<EOF
1892 #! /bin/sh
1893 EOF
1894 chmod +x $TMPSH >> $logfile 2>&1
1895 if ! $TMPSH >> $logfile 2>&1; then
1896     cat <<EOF
1897 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1898 variable to another directory and make sure that it is not mounted noexec.
1899 EOF
1900     die "Sanity test failed."
1901 fi
1902
1903 filter_cflags=echo
1904 filter_cppflags=echo
1905 filter_asflags=echo
1906
1907 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1908     cc_type=llvm_gcc
1909     cc_version=__VERSION__
1910     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1911     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1912     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1913     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1914     speed_cflags='-O3'
1915     size_cflags='-Os'
1916 elif $cc -v 2>&1 | grep -qi ^gcc; then
1917     cc_type=gcc
1918     cc_version=__VERSION__
1919     gcc_version=$($cc --version | head -n1)
1920     gcc_basever=$($cc -dumpversion)
1921     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1922     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1923     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1924     if ! $cc -dumpversion | grep -q '^2\.'; then
1925         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1926         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1927     fi
1928     speed_cflags='-O3'
1929     size_cflags='-Os'
1930 elif $cc --version 2>/dev/null | grep -q Intel; then
1931     cc_type=icc
1932     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1933     cc_ident=$($cc --version | head -n1)
1934     icc_version=$($cc -dumpversion)
1935     CC_DEPFLAGS='-MMD'
1936     AS_DEPFLAGS='-MMD'
1937     speed_cflags='-O3'
1938     size_cflags='-Os'
1939     noopt_cflags='-O1'
1940 elif $cc -v 2>&1 | grep -q xlc; then
1941     cc_type=xlc
1942     cc_version="AV_STRINGIFY(__IBMC__)"
1943     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1944     speed_cflags='-O5'
1945     size_cflags='-O5 -qcompact'
1946 elif $cc -V 2>/dev/null | grep -q Compaq; then
1947     cc_type=ccc
1948     cc_version="AV_STRINGIFY(__DECC_VER)"
1949     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1950     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1951     debuglevel=3
1952     add_ldflags -Wl,-z,now # calls to libots crash without this
1953     speed_cflags='-fast'
1954     size_cflags='-O1'
1955 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1956     test -d "$sysroot" || die "No valid sysroot specified."
1957     cc_type=armcc
1958     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1959     cc_ident=$($cc --vsn | head -n1)
1960     armcc_conf="$PWD/armcc.conf"
1961     $cc --arm_linux_configure                 \
1962         --arm_linux_config_file="$armcc_conf" \
1963         --configure_sysroot="$sysroot"        \
1964         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1965         die "Error creating armcc configuration file."
1966     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1967     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1968     as_default="${cross_prefix}gcc"
1969     CC_DEPFLAGS='-MMD'
1970     AS_DEPFLAGS='-MMD'
1971     speed_cflags='-O3'
1972     size_cflags='-Os'
1973     filter_asflags="filter_out -W${armcc_opt}*"
1974 elif $cc -version 2>/dev/null | grep -q TMS470; then
1975     cc_type=tms470
1976     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1977     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1978     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1979     CC_O='-fr=$(@D)'
1980     as_default="${cross_prefix}gcc"
1981     ld_default="${cross_prefix}gcc"
1982     TMPO=$(basename $TMPC .c).o
1983     append TMPFILES $TMPO
1984     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1985     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1986     AS_DEPFLAGS='-MMD'
1987     speed_cflags='-O3 -mf=5'
1988     size_cflags='-O3 -mf=2'
1989     filter_cflags=tms470_flags
1990     tms470_flags(){
1991         for flag; do
1992             case $flag in
1993                 -march=*|-mcpu=*)
1994                     case "${flag#*=}" in
1995                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1996                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1997                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1998                         armv6*|arm11*)          echo -mv=6   ;;
1999                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2000                                                 echo -mv=5e  ;;
2001                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2002                     esac
2003                     ;;
2004                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2005                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2006                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2007                 -msoft-float)   echo --float_support=vfplib       ;;
2008                 -O[0-3]|-mf=*)  echo $flag                        ;;
2009                 -g)             echo -g -mn                       ;;
2010                 -pds=*)         echo $flag                        ;;
2011             esac
2012         done
2013     }
2014 elif $cc -v 2>&1 | grep -q clang; then
2015     cc_type=clang
2016     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2017         cc_version=__clang_version__ || cc_version=__VERSION__
2018     cc_ident=$($cc --version | head -n1)
2019     CC_DEPFLAGS='-MMD'
2020     AS_DEPFLAGS='-MMD'
2021     speed_cflags='-O3'
2022     size_cflags='-Os'
2023 elif $cc -V 2>&1 | grep -q Sun; then
2024     cc_type=suncc
2025     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2026     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2027     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2028     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2029     speed_cflags='-O5'
2030     size_cflags='-O5 -xspace'
2031     filter_cflags=suncc_flags
2032     suncc_flags(){
2033         for flag; do
2034             case $flag in
2035                 -march=*|-mcpu=*)
2036                     case "${flag#*=}" in
2037                         native)                   echo -xtarget=native       ;;
2038                         v9|niagara)               echo -xarch=sparc          ;;
2039                         ultrasparc)               echo -xarch=sparcvis       ;;
2040                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2041                         i586|pentium)             echo -xchip=pentium        ;;
2042                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2043                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2044                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2045                         pentium4*)          echo -xtarget=pentium4           ;;
2046                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2047                         *-sse3)             echo -xarch=sse3                 ;;
2048                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2049                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2050                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2051                         k8|opteron|athlon64|athlon-fx)
2052                                                   echo -xarch=sse2a          ;;
2053                         athlon*)                  echo -xarch=pentium_proa   ;;
2054                     esac
2055                     ;;
2056                 -std=c99)             echo -xc99              ;;
2057                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2058                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2059                 -W*,*)                echo $flag              ;;
2060                 -f*-*|-W*)                                    ;;
2061                 *)                    echo $flag              ;;
2062             esac
2063         done
2064     }
2065 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2066     cc_type=pathscale
2067     cc_version=__PATHSCALE__
2068     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2069     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2070     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071     speed_cflags='-O2'
2072     size_cflags='-Os'
2073 elif $cc -v 2>&1 | grep -q Open64; then
2074     cc_type=open64
2075     cc_version=__OPEN64__
2076     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2077     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2078     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2079     speed_cflags='-O2'
2080     size_cflags='-Os'
2081 fi
2082
2083 test -n "$cc_type" && enable $cc_type ||
2084     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2085
2086 : ${as_default:=$cc}
2087 : ${dep_cc_default:=$cc}
2088 : ${ld_default:=$cc}
2089 set_default ar as dep_cc ld
2090
2091 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2092 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2093
2094 add_cflags $extra_cflags
2095 add_asflags $extra_cflags
2096
2097 if test -n "$sysroot"; then
2098     case "$cc_type" in
2099         gcc|llvm_gcc|clang)
2100             add_cppflags --sysroot="$sysroot"
2101             add_ldflags --sysroot="$sysroot"
2102         ;;
2103         tms470)
2104             add_cppflags -I"$sysinclude"
2105             add_ldflags  --sysroot="$sysroot"
2106         ;;
2107     esac
2108 fi
2109
2110 if test "$cpu" = host; then
2111     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2112
2113     case "$cc_type" in
2114         gcc|llvm_gcc)
2115             check_native(){
2116                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2117                 sed -n "/$1=/{
2118                             s/.*$1=\\([^ ]*\\).*/\\1/
2119                             p
2120                             q
2121                         }" $TMPE
2122             }
2123             cpu=$(check_native -march || check_native -mcpu)
2124         ;;
2125     esac
2126
2127     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2128 fi
2129
2130 # Deal with common $arch aliases
2131 case "$arch" in
2132     arm*)
2133         arch="arm"
2134     ;;
2135     mips|mipsel|IP*)
2136         arch="mips"
2137     ;;
2138     mips64*)
2139         arch="mips"
2140         subarch="mips64"
2141     ;;
2142     parisc|hppa)
2143         arch="parisc"
2144     ;;
2145     parisc64|hppa64)
2146         arch="parisc"
2147         subarch="parisc64"
2148     ;;
2149     "Power Macintosh"|ppc|powerpc)
2150         arch="ppc"
2151     ;;
2152     ppc64|powerpc64)
2153         arch="ppc"
2154         subarch="ppc64"
2155     ;;
2156     s390|s390x)
2157         arch="s390"
2158     ;;
2159     sh4|sh)
2160         arch="sh4"
2161     ;;
2162     sun4u|sparc64)
2163         arch="sparc"
2164         subarch="sparc64"
2165     ;;
2166     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2167         arch="x86"
2168     ;;
2169 esac
2170
2171 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2172 enable $arch
2173
2174 # Add processor-specific flags
2175 if test "$cpu" = generic; then
2176     : do nothing
2177 elif enabled ppc; then
2178
2179     case $(tolower $cpu) in
2180         601|ppc601|powerpc601)
2181             cpuflags="-mcpu=601"
2182             disable altivec
2183         ;;
2184         603*|ppc603*|powerpc603*)
2185             cpuflags="-mcpu=603"
2186             disable altivec
2187         ;;
2188         604*|ppc604*|powerpc604*)
2189             cpuflags="-mcpu=604"
2190             disable altivec
2191         ;;
2192         g3|75*|ppc75*|powerpc75*)
2193             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2194             disable altivec
2195         ;;
2196         g4|745*|ppc745*|powerpc745*)
2197             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2198         ;;
2199         74*|ppc74*|powerpc74*)
2200             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2201         ;;
2202         g5|970|ppc970|powerpc970|power4*)
2203             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2204         ;;
2205         cell)
2206             cpuflags="-mcpu=cell"
2207             enable ldbrx
2208         ;;
2209         e500v2)
2210             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2211             disable altivec
2212         ;;
2213         e500)
2214             cpuflags="-mcpu=8540 -mhard-float"
2215             disable altivec
2216         ;;
2217     esac
2218
2219 elif enabled x86; then
2220
2221     case $cpu in
2222         i[345]86|pentium)
2223             cpuflags="-march=$cpu"
2224             disable mmx
2225         ;;
2226         # targets that do NOT support conditional mov (cmov)
2227         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2228             cpuflags="-march=$cpu"
2229             disable cmov
2230         ;;
2231         # targets that do support conditional mov (cmov)
2232         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2233             cpuflags="-march=$cpu"
2234             enable cmov
2235             enable fast_cmov
2236         ;;
2237         # targets that do support conditional mov but on which it's slow
2238         pentium4|pentium4m|prescott|nocona)
2239             cpuflags="-march=$cpu"
2240             enable cmov
2241             disable fast_cmov
2242         ;;
2243     esac
2244
2245 elif enabled sparc; then
2246
2247     case $cpu in
2248         niagara)
2249             cpuflags="-mcpu=$cpu"
2250             disable vis
2251         ;;
2252         sparc64)
2253             cpuflags="-mcpu=v9"
2254         ;;
2255     esac
2256
2257 elif enabled arm; then
2258
2259     case $cpu in
2260         armv*)
2261             cpuflags="-march=$cpu"
2262             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2263         ;;
2264         *)
2265             cpuflags="-mcpu=$cpu"
2266             case $cpu in
2267                 cortex-a*)                               subarch=armv7a  ;;
2268                 cortex-r*)                               subarch=armv7r  ;;
2269                 cortex-m*)                               subarch=armv7m  ;;
2270                 arm11*)                                  subarch=armv6   ;;
2271                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2272                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2273             esac
2274         ;;
2275     esac
2276
2277 elif enabled alpha; then
2278
2279     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2280
2281 elif enabled bfin; then
2282
2283     cpuflags="-mcpu=$cpu"
2284
2285 elif enabled mips; then
2286
2287     cpuflags="-march=$cpu"
2288
2289 elif enabled avr32; then
2290
2291     case $cpu in
2292         ap7[02]0[0-2])
2293             subarch="avr32_ap"
2294             cpuflags="-mpart=$cpu"
2295         ;;
2296         ap)
2297             subarch="avr32_ap"
2298             cpuflags="-march=$cpu"
2299         ;;
2300         uc3[ab]*)
2301             subarch="avr32_uc"
2302             cpuflags="-mcpu=$cpu"
2303         ;;
2304         uc)
2305             subarch="avr32_uc"
2306             cpuflags="-march=$cpu"
2307         ;;
2308     esac
2309
2310 fi
2311
2312 add_cflags $cpuflags
2313 add_asflags $cpuflags
2314
2315 # compiler sanity check
2316 check_exec <<EOF
2317 int main(void){ return 0; }
2318 EOF
2319 if test "$?" != 0; then
2320     echo "$cc is unable to create an executable file."
2321     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2322         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2323         echo "Only do this if you know what cross compiling means."
2324     fi
2325     die "C compiler test failed."
2326 fi
2327
2328 add_cppflags -D_ISOC99_SOURCE
2329 check_cflags -std=c99
2330 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2331 #include <stdlib.h>
2332 EOF
2333 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2334 #include <stdlib.h>
2335 EOF
2336
2337 check_host_cflags -std=c99
2338 check_host_cflags -Wall
2339
2340 case "$arch" in
2341     alpha|ia64|mips|parisc|sparc)
2342         spic=$shared
2343     ;;
2344     x86)
2345         subarch="x86_32"
2346         check_cc <<EOF && subarch="x86_64"
2347         int test[(int)sizeof(char*) - 7];
2348 EOF
2349         if test "$subarch" = "x86_64"; then
2350             spic=$shared
2351         fi
2352     ;;
2353 esac
2354
2355 enable $subarch
2356 enabled spic && enable pic
2357
2358 # OS specific
2359 case $target_os in
2360     haiku)
2361         prefix_default="/boot/common"
2362         network_extralibs="-lnetwork"
2363         host_libs=
2364         ;;
2365     sunos)
2366         FFSERVERLDFLAGS=""
2367         SHFLAGS='-shared -Wl,-h,$$(@F)'
2368         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2369         network_extralibs="-lsocket -lnsl"
2370         add_cppflags -D__EXTENSIONS__
2371         nm_opts='-P -g'
2372         ;;
2373     netbsd)
2374         disable symver
2375         oss_indev_extralibs="-lossaudio"
2376         oss_outdev_extralibs="-lossaudio"
2377         ;;
2378     openbsd)
2379         enable malloc_aligned
2380         # On OpenBSD 4.5. the compiler does not use PIC unless
2381         # explicitly using -fPIC. Libav builds fine without PIC,
2382         # however the generated executable will not do anything
2383         # (simply quits with exit-code 1, no crash, no output).
2384         # Thus explicitly enable PIC here.
2385         enable pic
2386         disable symver
2387         SHFLAGS='-shared'
2388         oss_indev_extralibs="-lossaudio"
2389         oss_outdev_extralibs="-lossaudio"
2390         ;;
2391     dragonfly)
2392         enable malloc_aligned
2393         disable symver
2394         ;;
2395     freebsd)
2396         enable malloc_aligned
2397         ;;
2398     bsd/os)
2399         add_extralibs -lpoll -lgnugetopt
2400         ;;
2401     darwin)
2402         enable malloc_aligned
2403         gas="gas-preprocessor.pl $cc"
2404         enabled ppc && add_asflags -force_cpusubtype_ALL
2405         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2406         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2407         add_ldflags -Wl,-dynamic,-search_paths_first
2408         SLIBSUF=".dylib"
2409         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2410         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2411         FFSERVERLDFLAGS=-Wl,-bind_at_load
2412         objformat="macho"
2413         enabled x86_64 && objformat="macho64"
2414         enabled_any pic shared ||
2415             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2416         ;;
2417     mingw32*)
2418         if test $target_os = "mingw32ce"; then
2419             disable network
2420         else
2421             target_os=mingw32
2422         fi
2423         LIBTARGET=i386
2424         if enabled x86_64; then
2425             enable malloc_aligned
2426             LIBTARGET="i386:x86-64"
2427         elif enabled arm; then
2428             LIBTARGET=arm-wince
2429         fi
2430         shlibdir_default="$bindir_default"
2431         SLIBPREF=""
2432         SLIBSUF=".dll"
2433         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2434         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2435         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2436         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2437             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2438             install -d "$(LIBDIR)"; \
2439             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2440         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2441         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'
2442         objformat="win32"
2443         dlltool="${cross_prefix}dlltool"
2444         enable dos_paths
2445         check_cflags -fno-common
2446         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2447                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2448                 die "ERROR: MinGW runtime version must be >= 3.15."
2449         add_cppflags -U__STRICT_ANSI__
2450         ;;
2451     cygwin*)
2452         target_os=cygwin
2453         shlibdir_default="$bindir_default"
2454         SLIBPREF="cyg"
2455         SLIBSUF=".dll"
2456         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2457         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2458         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2459         objformat="win32"
2460         enable dos_paths
2461         check_cflags -fno-common
2462         add_cppflags -U__STRICT_ANSI__
2463         ;;
2464     *-dos|freedos|opendos)
2465         network_extralibs="-lsocket"
2466         objformat="coff"
2467         enable dos_paths
2468         add_cppflags -U__STRICT_ANSI__
2469         ;;
2470     linux)
2471         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2472         enable dv1394
2473         ;;
2474     irix*)
2475         target_os=irix
2476         ranlib="echo ignoring ranlib"
2477         ;;
2478     os/2*)
2479         ln_s="cp -f"
2480         objformat="aout"
2481         add_cppflags -D_GNU_SOURCE
2482         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2483         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2484         FFSERVERLDFLAGS=""
2485         LIBSUF="_s.a"
2486         SLIBPREF=""
2487         SLIBSUF=".dll"
2488         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2489         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2490         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2491           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2492           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2493           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2494           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2495           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2496         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2497           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2498         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2499         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2500         enable dos_paths
2501         ;;
2502     gnu/kfreebsd)
2503         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2504         ;;
2505     gnu)
2506         ;;
2507     qnx)
2508         add_cppflags -D_QNX_SOURCE
2509         network_extralibs="-lsocket"
2510         ;;
2511     symbian)
2512         SLIBSUF=".dll"
2513         enable dos_paths
2514         add_cflags --include=$sysinclude/gcce/gcce.h
2515         ;;
2516     none)
2517         ;;
2518     *)
2519         die "Unknown OS '$target_os'."
2520         ;;
2521 esac
2522
2523 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2524
2525 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2526
2527 set_default $PATHS_LIST
2528
2529 # we need to build at least one lib type
2530 if ! enabled_any static shared; then
2531     cat <<EOF
2532 At least one library type must be built.
2533 Specify --enable-static to build the static libraries or --enable-shared to
2534 build the shared libraries as well. To only build the shared libraries specify
2535 --disable-static in addition to --enable-shared.
2536 EOF
2537     exit 1;
2538 fi
2539
2540 disabled static && LIBNAME=""
2541
2542 die_license_disabled() {
2543     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2544 }
2545
2546 die_license_disabled gpl libx264
2547 die_license_disabled gpl libxavs
2548 die_license_disabled gpl libxvid
2549 die_license_disabled gpl x11grab
2550
2551 die_license_disabled nonfree libfaac
2552
2553 die_license_disabled version3 libopencore_amrnb
2554 die_license_disabled version3 libopencore_amrwb
2555 die_license_disabled version3 libvo_aacenc
2556 die_license_disabled version3 libvo_amrwbenc
2557
2558 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2559
2560 disabled optimizations || check_cflags -fomit-frame-pointer
2561
2562 enable_pic() {
2563     enable pic
2564     add_cppflags -DPIC
2565     add_cflags   -fPIC
2566     add_asflags  -fPIC
2567 }
2568
2569 enabled pic && enable_pic
2570
2571 check_cc <<EOF || die "Symbol mangling check failed."
2572 int ff_extern;
2573 EOF
2574 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2575 extern_prefix=${sym%%ff_extern*}
2576
2577 check_cc <<EOF && enable inline_asm
2578 void foo(void) { __asm__ volatile ("" ::); }
2579 EOF
2580
2581 _restrict=
2582 for restrict_keyword in restrict __restrict__ __restrict; do
2583     check_cc <<EOF && _restrict=$restrict_keyword && break
2584 void foo(char * $restrict_keyword p);
2585 EOF
2586 done
2587
2588 check_cc <<EOF && enable attribute_packed
2589 struct { int x; } __attribute__((packed)) x;
2590 EOF
2591
2592 check_cc <<EOF && enable attribute_may_alias
2593 union { int x; } __attribute__((may_alias)) x;
2594 EOF
2595
2596 check_cc <<EOF || die "endian test failed"
2597 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2598 EOF
2599 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2600
2601 if enabled alpha; then
2602
2603     check_cflags -mieee
2604
2605 elif enabled arm; then
2606
2607     check_cflags -marm
2608     nogas=die
2609
2610     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2611         enable vfp_args
2612     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2613         case "${cross_prefix:-$cc}" in
2614             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2615             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2616 __asm__ (".eabi_attribute 28, 1");
2617 int main(void) { return 0; }
2618 EOF
2619         esac
2620         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2621     fi
2622
2623     # We have to check if pld is a nop and disable it.
2624     check_asm pld '"pld [r0]"'
2625
2626     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2627     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2628     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2629     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2630     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2631     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2632     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2633
2634     enabled_all armv6t2 shared !pic && enable_pic
2635
2636 elif enabled mips; then
2637
2638     check_asm loongson '"dmult.g $1, $2, $3"'
2639     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2640
2641 elif enabled ppc; then
2642
2643     enable local_aligned_8 local_aligned_16
2644
2645     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2646     check_asm ibm_asm   '"add 0, 0, 0"'
2647     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2648     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2649
2650     # AltiVec flags: The FSF version of GCC differs from the Apple version
2651     if enabled altivec; then
2652         nogas=warn
2653         check_cflags -maltivec -mabi=altivec &&
2654         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2655         check_cflags -faltivec
2656
2657         # check if our compiler supports Motorola AltiVec C API
2658         check_cc <<EOF || disable altivec
2659 $inc_altivec_h
2660 int main(void) {
2661     vector signed int v1, v2, v3;
2662     v1 = vec_add(v2,v3);
2663     return 0;
2664 }
2665 EOF
2666
2667         # check if our compiler supports braces for vector declarations
2668         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2669 $inc_altivec_h
2670 int main (void) { (vector int) {1}; return 0; }
2671 EOF
2672     fi
2673
2674 elif enabled sparc; then
2675
2676     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2677         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2678
2679 elif enabled x86; then
2680
2681     enable local_aligned_8 local_aligned_16
2682
2683     # check whether EBP is available on x86
2684     # As 'i' is stored on the stack, this program will crash
2685     # if the base pointer is used to access it because the
2686     # base pointer is cleared in the inline assembly code.
2687     check_exec_crash <<EOF && enable ebp_available
2688     volatile int i=0;
2689     __asm__ volatile (
2690         "xorl %%ebp, %%ebp"
2691     ::: "%ebp");
2692     return i;
2693 EOF
2694
2695     # check whether EBX is available on x86
2696     check_asm ebx_available '""::"b"(0)' &&
2697         check_asm ebx_available '"":::"%ebx"'
2698
2699     # check whether xmm clobbers are supported
2700     check_asm xmm_clobbers '"":::"%xmm0"'
2701
2702     # check whether more than 10 operands are supported
2703     check_cc <<EOF && enable ten_operands
2704 int main(void) {
2705     int x=0;
2706     __asm__ volatile(
2707         ""
2708         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2709     );
2710     return 0;
2711 }
2712 EOF
2713
2714     # check whether binutils is new enough to compile SSSE3/MMX2
2715     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2716     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2717
2718     check_asm bswap '"bswap %%eax" ::: "%eax"'
2719
2720     if ! disabled_any asm mmx yasm; then
2721         if check_cmd $yasmexe --version; then
2722             enabled x86_64 && yasm_extra="-m amd64"
2723             yasm_debug="-g dwarf2"
2724         elif check_cmd nasm -v; then
2725             yasmexe=nasm
2726             yasm_debug="-g -F dwarf"
2727             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2728         fi
2729
2730         YASMFLAGS="-f $objformat $yasm_extra"
2731         enabled pic               && append YASMFLAGS "-DPIC"
2732         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2733         case "$objformat" in
2734             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2735         esac
2736
2737         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2738             die "yasm not found, use --disable-yasm for a crippled build"
2739         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2740     fi
2741
2742     case "$cpu" in
2743         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2744             disable fast_clz
2745         ;;
2746     esac
2747
2748 fi
2749
2750 if enabled asm; then
2751     as=${gas:=$as}
2752     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2753         $nogas "GNU assembler not found, install gas-preprocessor"
2754 fi
2755
2756 check_ldflags -Wl,--as-needed
2757
2758 if check_func dlopen; then
2759     ldl=
2760 elif check_func dlopen -ldl; then
2761     ldl=-ldl
2762 fi
2763
2764 if enabled network; then
2765     check_type "sys/types.h sys/socket.h" socklen_t
2766     check_type netdb.h "struct addrinfo"
2767     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2768     check_type netinet/in.h "struct sockaddr_in6"
2769     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2770     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2771     # Prefer arpa/inet.h over winsock2
2772     if check_header arpa/inet.h ; then
2773         check_func closesocket
2774     elif check_header winsock2.h ; then
2775         check_func_headers winsock2.h closesocket -lws2 && \
2776             network_extralibs="-lws2" || \
2777         { check_func_headers winsock2.h closesocket -lws2_32 && \
2778             network_extralibs="-lws2_32"; }
2779         check_type ws2tcpip.h socklen_t
2780         check_type ws2tcpip.h "struct addrinfo"
2781         check_type ws2tcpip.h "struct ipv6_mreq"
2782         check_type ws2tcpip.h "struct sockaddr_in6"
2783         check_type ws2tcpip.h "struct sockaddr_storage"
2784         check_struct winsock2.h "struct sockaddr" sa_len
2785     else
2786         disable network
2787     fi
2788 fi
2789
2790 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2791 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2792
2793 check_func  fcntl
2794 check_func  fork
2795 check_func  getaddrinfo $network_extralibs
2796 check_func  gethrtime
2797 check_func  getrusage
2798 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2799 check_func  inet_aton $network_extralibs
2800 check_func  isatty
2801 check_func  localtime_r
2802 check_func  ${malloc_prefix}memalign            && enable memalign
2803 check_func  mkstemp
2804 check_func  mmap
2805 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2806 check_func  setrlimit
2807 check_func  strerror_r
2808 check_func  strtok_r
2809 check_func_headers io.h setmode
2810 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2811 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2812 check_func_headers windows.h GetProcessTimes
2813 check_func_headers windows.h MapViewOfFile
2814 check_func_headers windows.h VirtualAlloc
2815
2816 check_header dlfcn.h
2817 check_header dxva2api.h
2818 check_header malloc.h
2819 check_header poll.h
2820 check_header sys/mman.h
2821 check_header sys/resource.h
2822 check_header sys/select.h
2823 check_header vdpau/vdpau.h
2824 check_header vdpau/vdpau_x11.h
2825 check_header X11/extensions/XvMClib.h
2826
2827 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2828
2829 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2830 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2831
2832 # check for some common methods of building with pthread support
2833 # do this before the optional library checks as some of them require pthreads
2834 if ! disabled pthreads && ! enabled w32threads; then
2835     enable pthreads
2836     if check_func pthread_create; then
2837         :
2838     elif check_func pthread_create -pthread; then
2839         add_cflags -pthread
2840         add_extralibs -pthread
2841     elif check_func pthread_create -pthreads; then
2842         add_cflags -pthreads
2843         add_extralibs -pthreads
2844     elif check_func pthread_create -lpthreadGC2; then
2845         add_extralibs -lpthreadGC2
2846     elif ! check_lib pthread.h pthread_create -lpthread; then
2847         disable pthreads
2848     fi
2849 fi
2850
2851 for thread in $THREADS_LIST; do
2852     if enabled $thread; then
2853         test -n "$thread_type" &&
2854             die "ERROR: Only one thread type must be selected." ||
2855             thread_type="$thread"
2856     fi
2857 done
2858
2859 check_lib math.h sin -lm && LIBM="-lm"
2860 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2861
2862 check_mathfunc exp2
2863 check_mathfunc exp2f
2864 check_mathfunc llrint
2865 check_mathfunc llrintf
2866 check_mathfunc log2
2867 check_mathfunc log2f
2868 check_mathfunc lrint
2869 check_mathfunc lrintf
2870 check_mathfunc round
2871 check_mathfunc roundf
2872 check_mathfunc trunc
2873 check_mathfunc truncf
2874
2875 # these are off by default, so fail if requested and not available
2876 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2877 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2878 enabled libdirac   && require_pkg_config dirac                          \
2879     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2880     "dirac_decoder_init dirac_encoder_init"
2881 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2882 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2883 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2884 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2885 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2886 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2887 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2888 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2889 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2890 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2891 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2892 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2893 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2894 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2895 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2896 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2897 enabled libvpx     && {
2898     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2899                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2900     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2901                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2902 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2903                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2904                         die "ERROR: libx264 version must be >= 0.115."; }
2905 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2906 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2907 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2908
2909 # libdc1394 check
2910 if enabled libdc1394; then
2911     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2912         enable libdc1394_2; } ||
2913     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2914         enable libdc1394_1; } ||
2915     die "ERROR: No version of libdc1394 found "
2916 fi
2917
2918 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2919     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2920     enable sdl &&
2921     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2922 fi
2923
2924 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2925
2926 check_header linux/fb.h
2927 check_header linux/videodev.h
2928 check_header linux/videodev2.h
2929 check_header sys/videoio.h
2930
2931 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2932 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2933 # w32api 3.12 had it defined wrong
2934 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2935
2936 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2937 { check_header dev/bktr/ioctl_meteor.h &&
2938   check_header dev/bktr/ioctl_bt848.h; } ||
2939 { check_header machine/ioctl_meteor.h &&
2940   check_header machine/ioctl_bt848.h; } ||
2941 { check_header dev/video/meteor/ioctl_meteor.h &&
2942   check_header dev/video/bktr/ioctl_bt848.h; } ||
2943 check_header dev/ic/bt8xx.h
2944
2945 check_header sndio.h
2946 check_header sys/soundcard.h
2947 check_header soundcard.h
2948
2949 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2950
2951 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2952
2953 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2954
2955 enabled x11grab                         &&
2956 check_header X11/Xlib.h                 &&
2957 check_header X11/extensions/XShm.h      &&
2958 check_header X11/extensions/Xfixes.h    &&
2959 check_func XOpenDisplay -lX11           &&
2960 check_func XShmCreateImage -lX11 -lXext &&
2961 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2962
2963 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2964 check_cpp_condition \
2965     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2966     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2967       disable vdpau; }
2968 fi
2969
2970 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2971
2972 # add some useful compiler flags if supported
2973 check_cflags -Wdeclaration-after-statement
2974 check_cflags -Wall
2975 check_cflags -Wno-parentheses
2976 check_cflags -Wno-switch
2977 check_cflags -Wdisabled-optimization
2978 check_cflags -Wpointer-arith
2979 check_cflags -Wredundant-decls
2980 check_cflags -Wno-pointer-sign
2981 check_cflags -Wcast-qual
2982 check_cflags -Wwrite-strings
2983 check_cflags -Wtype-limits
2984 check_cflags -Wundef
2985 check_cflags -Wmissing-prototypes
2986 enabled extra_warnings && check_cflags -Winline
2987
2988 # add some linker flags
2989 check_ldflags -Wl,--warn-common
2990 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
2991 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2992
2993 echo "X{};" > $TMPV
2994 if test_ldflags -Wl,--version-script,$TMPV; then
2995     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2996     check_cc <<EOF && enable symver_asm_label
2997 void ff_foo(void) __asm__ ("av_foo@VERSION");
2998 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2999 EOF
3000     check_cc <<EOF && enable symver_gnu_asm
3001 __asm__(".symver ff_foo,av_foo@VERSION");
3002 void ff_foo(void) {}
3003 EOF
3004 fi
3005
3006 if enabled small; then
3007     add_cflags $size_cflags
3008     optimizations="small"
3009 elif enabled optimizations; then
3010     add_cflags $speed_cflags
3011 else
3012     add_cflags $noopt_cflags
3013 fi
3014 check_cflags -fno-math-errno
3015 check_cflags -fno-signed-zeros
3016
3017 if enabled icc; then
3018     # Just warnings, no remarks
3019     check_cflags -w1
3020     # -wd: Disable following warnings
3021     # 144, 167, 556: -Wno-pointer-sign
3022     # 1292: attribute "foo" ignored
3023     # 10006: ignoring unknown option -fno-signed-zeros
3024     # 10148: ignoring unknown option -Wno-parentheses
3025     # 10156: ignoring option '-W'; no argument required
3026     check_cflags -wd144,167,556,1292,10006,10148,10156
3027     # 11030: Warning unknown option --as-needed
3028     # 10156: ignoring option '-export'; no argument required
3029     check_ldflags -wd10156,11030
3030     # Allow to compile with optimizations
3031     check_ldflags -march=$cpu
3032     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3033     enable ebp_available
3034     if enabled x86_32; then
3035         test ${icc_version%%.*} -ge 11 && \
3036             check_cflags -falign-stack=maintain-16-byte || \
3037             disable aligned_stack
3038     fi
3039 elif enabled ccc; then
3040     # disable some annoying warnings
3041     add_cflags -msg_disable cvtu32to64
3042     add_cflags -msg_disable embedcomment
3043     add_cflags -msg_disable needconstext
3044     add_cflags -msg_disable nomainieee
3045     add_cflags -msg_disable ptrmismatch1
3046     add_cflags -msg_disable unreachcode
3047 elif enabled gcc; then
3048     check_cflags -fno-tree-vectorize
3049     check_cflags -Werror=implicit-function-declaration
3050     check_cflags -Werror=missing-prototypes
3051 elif enabled llvm_gcc; then
3052     check_cflags -mllvm -stack-alignment=16
3053 elif enabled clang; then
3054     check_cflags -mllvm -stack-alignment=16
3055     check_cflags -Qunused-arguments
3056 elif enabled armcc; then
3057     # 2523: use of inline assembler is deprecated
3058     add_cflags -W${armcc_opt},--diag_suppress=2523
3059     add_cflags -W${armcc_opt},--diag_suppress=1207
3060     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3061     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3062 elif enabled tms470; then
3063     add_cflags -pds=824 -pds=837
3064 elif enabled pathscale; then
3065     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3066 fi
3067
3068 enabled_any $THREADS_LIST      && enable threads
3069
3070 check_deps $CONFIG_LIST       \
3071            $CONFIG_EXTRA      \
3072            $HAVE_LIST         \
3073            $DECODER_LIST      \
3074            $ENCODER_LIST      \
3075            $HWACCEL_LIST      \
3076            $PARSER_LIST       \
3077            $BSF_LIST          \
3078            $DEMUXER_LIST      \
3079            $MUXER_LIST        \
3080            $FILTER_LIST       \
3081            $INDEV_LIST        \
3082            $OUTDEV_LIST       \
3083            $PROTOCOL_LIST     \
3084            $ACODEC_TESTS      \
3085            $VCODEC_TESTS      \
3086            $LAVF_TESTS        \
3087            $LAVFI_TESTS       \
3088            $SEEK_TESTS        \
3089
3090 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3091
3092 ! enabled_any memalign posix_memalign malloc_aligned &&
3093     enabled_any $need_memalign && enable memalign_hack
3094
3095 echo "install prefix            $prefix"
3096 echo "source path               $source_path"
3097 echo "C compiler                $cc"
3098 echo "ARCH                      $arch ($cpu)"
3099 if test "$build_suffix" != ""; then
3100     echo "build suffix              $build_suffix"
3101 fi
3102 if test "$extra_version" != ""; then
3103     echo "version string suffix     $extra_version"
3104 fi
3105 echo "big-endian                ${bigendian-no}"
3106 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3107 if enabled x86; then
3108     echo "${yasmexe}                      ${yasm-no}"
3109     echo "MMX enabled               ${mmx-no}"
3110     echo "MMX2 enabled              ${mmx2-no}"
3111     echo "3DNow! enabled            ${amd3dnow-no}"
3112     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3113     echo "SSE enabled               ${sse-no}"
3114     echo "SSSE3 enabled             ${ssse3-no}"
3115     echo "AVX enabled               ${avx-no}"
3116     echo "CMOV enabled              ${cmov-no}"
3117     echo "CMOV is fast              ${fast_cmov-no}"
3118     echo "EBX available             ${ebx_available-no}"
3119     echo "EBP available             ${ebp_available-no}"
3120     echo "10 operands supported     ${ten_operands-no}"
3121 fi
3122 if enabled arm; then
3123     echo "ARMv5TE enabled           ${armv5te-no}"
3124     echo "ARMv6 enabled             ${armv6-no}"
3125     echo "ARMv6T2 enabled           ${armv6t2-no}"
3126     echo "ARM VFP enabled           ${armvfp-no}"
3127     echo "IWMMXT enabled            ${iwmmxt-no}"
3128     echo "NEON enabled              ${neon-no}"
3129 fi
3130 if enabled mips; then
3131     echo "MMI enabled               ${mmi-no}"
3132 fi
3133 if enabled ppc; then
3134     echo "AltiVec enabled           ${altivec-no}"
3135     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3136     echo "dcbzl available           ${dcbzl-no}"
3137 fi
3138 if enabled sparc; then
3139     echo "VIS enabled               ${vis-no}"
3140 fi
3141 echo "debug symbols             ${debug-no}"
3142 echo "optimizations             ${optimizations-no}"
3143 echo "static                    ${static-no}"
3144 echo "shared                    ${shared-no}"
3145 echo "postprocessing support    ${postproc-no}"
3146 echo "new filter support        ${avfilter-no}"
3147 echo "network support           ${network-no}"
3148 echo "threading support         ${thread_type-no}"
3149 echo "SDL support               ${sdl-no}"
3150 echo "Sun medialib support      ${mlib-no}"
3151 echo "AVISynth enabled          ${avisynth-no}"
3152 echo "frei0r enabled            ${frei0r-no}"
3153 echo "libdc1394 support         ${libdc1394-no}"
3154 echo "libdirac enabled          ${libdirac-no}"
3155 echo "libfaac enabled           ${libfaac-no}"
3156 echo "libgsm enabled            ${libgsm-no}"
3157 echo "libmp3lame enabled        ${libmp3lame-no}"
3158 echo "libnut enabled            ${libnut-no}"
3159 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3160 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3161 echo "libopencv support         ${libopencv-no}"
3162 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3163 echo "librtmp enabled           ${librtmp-no}"
3164 echo "libschroedinger enabled   ${libschroedinger-no}"
3165 echo "libspeex enabled          ${libspeex-no}"
3166 echo "libtheora enabled         ${libtheora-no}"
3167 echo "libva enabled             ${vaapi-no}"
3168 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3169 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3170 echo "libvorbis enabled         ${libvorbis-no}"
3171 echo "libvpx enabled            ${libvpx-no}"
3172 echo "libx264 enabled           ${libx264-no}"
3173 echo "libxavs enabled           ${libxavs-no}"
3174 echo "libxvid enabled           ${libxvid-no}"
3175 echo "zlib enabled              ${zlib-no}"
3176 echo "bzlib enabled             ${bzlib-no}"
3177 echo
3178
3179 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3180     echo "Enabled ${type}s:"
3181     eval list=\$$(toupper $type)_LIST
3182     print_enabled '_*' $list | sort | pr -r -3 -t
3183     echo
3184 done
3185
3186 license="LGPL version 2.1 or later"
3187 if enabled nonfree; then
3188     license="nonfree and unredistributable"
3189 elif enabled gplv3; then
3190     license="GPL version 3 or later"
3191 elif enabled lgplv3; then
3192     license="LGPL version 3 or later"
3193 elif enabled gpl; then
3194     license="GPL version 2 or later"
3195 fi
3196
3197 echo "License: $license"
3198
3199 echo "Creating config.mak and config.h..."
3200
3201 # build tree in object directory if source path is different from current one
3202 if enabled source_path_used; then
3203     DIRS="
3204         doc
3205         libavcodec
3206         libavcodec/$arch
3207         libavdevice
3208         libavfilter
3209         libavfilter/$arch
3210         libavformat
3211         libavutil
3212         libavutil/$arch
3213         libpostproc
3214         libswscale
3215         libswscale/$arch
3216         tests
3217         tools
3218     "
3219     FILES="
3220         Makefile
3221         common.mak
3222         subdir.mak
3223         doc/texi2pod.pl
3224         libavcodec/Makefile
3225         libavcodec/${arch}/Makefile
3226         libavdevice/Makefile
3227         libavfilter/Makefile
3228         libavfilter/${arch}/Makefile
3229         libavformat/Makefile
3230         libavutil/Makefile
3231         libpostproc/Makefile
3232         libswscale/Makefile
3233     "
3234     map 'mkdir -p $v' $DIRS;
3235     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3236 fi
3237
3238 config_files="$TMPH config.mak"
3239
3240 cat > config.mak <<EOF
3241 # Automatically generated by configure - do not modify!
3242 ifndef LIBAV_CONFIG_MAK
3243 LIBAV_CONFIG_MAK=1
3244 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3245 prefix=$prefix
3246 LIBDIR=\$(DESTDIR)$libdir
3247 SHLIBDIR=\$(DESTDIR)$shlibdir
3248 INCDIR=\$(DESTDIR)$incdir
3249 BINDIR=\$(DESTDIR)$bindir
3250 DATADIR=\$(DESTDIR)$datadir
3251 MANDIR=\$(DESTDIR)$mandir
3252 SRC_PATH="$source_path"
3253 SRC_PATH_BARE=$source_path
3254 CC_IDENT=$cc_ident
3255 ARCH=$arch
3256 CC=$cc
3257 AS=$as
3258 LD=$ld
3259 DEPCC=$dep_cc
3260 YASM=$yasmexe
3261 YASMDEP=$yasmexe
3262 AR=$ar
3263 RANLIB=$ranlib
3264 LN_S=$ln_s
3265 CPPFLAGS=$CPPFLAGS
3266 CFLAGS=$CFLAGS
3267 ASFLAGS=$ASFLAGS
3268 CC_O=$CC_O
3269 DLLTOOL=$dlltool
3270 LDFLAGS=$LDFLAGS
3271 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3272 SHFLAGS=$SHFLAGS
3273 YASMFLAGS=$YASMFLAGS
3274 BUILDSUF=$build_suffix
3275 FULLNAME=$FULLNAME
3276 LIBPREF=$LIBPREF
3277 LIBSUF=$LIBSUF
3278 LIBNAME=$LIBNAME
3279 SLIBPREF=$SLIBPREF
3280 SLIBSUF=$SLIBSUF
3281 EXESUF=$EXESUF
3282 EXTRA_VERSION=$extra_version
3283 DEPFLAGS=$DEPFLAGS
3284 CCDEP=$CCDEP
3285 ASDEP=$ASDEP
3286 CC_DEPFLAGS=$CC_DEPFLAGS
3287 AS_DEPFLAGS=$AS_DEPFLAGS
3288 HOSTCC=$host_cc
3289 HOSTCFLAGS=$host_cflags
3290 HOSTEXESUF=$HOSTEXESUF
3291 HOSTLDFLAGS=$host_ldflags
3292 HOSTLIBS=$host_libs
3293 TARGET_EXEC=$target_exec
3294 TARGET_PATH=$target_path
3295 SDL_LIBS=$sdl_libs
3296 SDL_CFLAGS=$sdl_cflags
3297 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3298 EXTRALIBS=$extralibs
3299 INSTALL=install
3300 LIBTARGET=${LIBTARGET}
3301 SLIBNAME=${SLIBNAME}
3302 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3303 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3304 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3305 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3306 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3307 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3308 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3309 EOF
3310
3311 get_version(){
3312     name=$1
3313     file=$source_path/$2
3314     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3315     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3316     lcname=$(tolower $name)
3317     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3318     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3319 }
3320
3321 get_version LIBSWSCALE  libswscale/swscale.h
3322 get_version LIBPOSTPROC libpostproc/postprocess.h
3323 get_version LIBAVCODEC  libavcodec/version.h
3324 get_version LIBAVDEVICE libavdevice/avdevice.h
3325 get_version LIBAVFORMAT libavformat/version.h
3326 get_version LIBAVUTIL   libavutil/avutil.h
3327 get_version LIBAVFILTER libavfilter/avfilter.h
3328
3329 cat > $TMPH <<EOF
3330 /* Automatically generated by configure - do not modify! */
3331 #ifndef LIBAV_CONFIG_H
3332 #define LIBAV_CONFIG_H
3333 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3334 #define LIBAV_LICENSE "$(c_escape $license)"
3335 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3336 #define CC_TYPE "$cc_type"
3337 #define CC_VERSION $cc_version
3338 #define restrict $_restrict
3339 #define EXTERN_PREFIX "${extern_prefix}"
3340 #define EXTERN_ASM ${extern_prefix}
3341 #define SLIBSUF "$SLIBSUF"
3342 EOF
3343
3344 test -n "$malloc_prefix" &&
3345     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3346
3347 if enabled small || disabled optimizations; then
3348     echo "#undef  av_always_inline"  >> $TMPH
3349     if enabled small; then
3350         echo "#define av_always_inline inline"  >> $TMPH
3351     else
3352         echo "#define av_always_inline av_unused"  >> $TMPH
3353     fi
3354 fi
3355
3356 if enabled yasm; then
3357     append config_files $TMPASM
3358     printf '' >$TMPASM
3359 fi
3360
3361 print_config ARCH_   "$config_files" $ARCH_LIST
3362 print_config HAVE_   "$config_files" $HAVE_LIST
3363 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3364                                      $CONFIG_EXTRA      \
3365                                      $DECODER_LIST      \
3366                                      $ENCODER_LIST      \
3367                                      $HWACCEL_LIST      \
3368                                      $PARSER_LIST       \
3369                                      $BSF_LIST          \
3370                                      $DEMUXER_LIST      \
3371                                      $MUXER_LIST        \
3372                                      $FILTER_LIST       \
3373                                      $PROTOCOL_LIST     \
3374                                      $INDEV_LIST        \
3375                                      $OUTDEV_LIST       \
3376
3377 cat >>config.mak <<EOF
3378 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3379 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3380 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3381 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3382 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3383 EOF
3384
3385 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3386 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3387
3388 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3389 cp_if_changed $TMPH config.h
3390 touch .config
3391
3392 enabled yasm && cp_if_changed $TMPASM config.asm
3393
3394 cat > $TMPH <<EOF
3395 /* Generated by ffconf */
3396 #ifndef AVUTIL_AVCONFIG_H
3397 #define AVUTIL_AVCONFIG_H
3398 EOF
3399
3400 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3401
3402 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3403
3404 cp_if_changed $TMPH libavutil/avconfig.h
3405
3406 test -n "$WARNINGS" && printf "\n$WARNINGS"
3407
3408 # build pkg-config files
3409
3410 pkgconfig_generate(){
3411 name=$1
3412 shortname=${name#lib}${build_suffix}
3413 comment=$2
3414 version=$3
3415 libs=$4
3416 requires=$5
3417 enabled ${name#lib} || return 0
3418 cat <<EOF > $name/$name.pc
3419 prefix=$prefix
3420 exec_prefix=\${prefix}
3421 libdir=$libdir
3422 includedir=$incdir
3423
3424 Name: $name
3425 Description: $comment
3426 Version: $version
3427 Requires: $(enabled shared || echo $requires)
3428 Requires.private: $(enabled shared && echo $requires)
3429 Conflicts:
3430 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3431 Libs.private: $(enabled shared && echo $libs)
3432 Cflags: -I\${includedir}
3433 EOF
3434 cat <<EOF > $name/$name-uninstalled.pc
3435 prefix=
3436 exec_prefix=
3437 libdir=\${pcfiledir}
3438 includedir=${source_path}
3439
3440 Name: $name
3441 Description: $comment
3442 Version: $version
3443 Requires: $requires
3444 Conflicts:
3445 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3446 Cflags: -I\${includedir}
3447 EOF
3448 }
3449
3450 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3451 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3452 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3453 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3454 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3455 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3456 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"