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