lavd: remove deprecated v4l grab device.
[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/avconv]
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-avconv         disable avconv build
84   --disable-avplay         disable avplay build
85   --disable-avprobe        disable avprobe build
86   --disable-avserver       disable avserver 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   --enable-postproc        enable libpostproc build (deprecated) [no]
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --disable-w32threads     disable Win32 threads [auto]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code
110   --enable-vda             enable VDA code
111   --enable-vdpau           enable VDPAU code
112   --disable-dxva2          disable DXVA2 code
113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115   --disable-safe-bitstream-reader
116                            disable buffer boundary checking in bitreaders
117                            (faster, but may crash)
118   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
119   --disable-everything     disable all components listed below
120   --disable-encoder=NAME   disable encoder NAME
121   --enable-encoder=NAME    enable encoder NAME
122   --disable-encoders       disable all encoders
123   --disable-decoder=NAME   disable decoder NAME
124   --enable-decoder=NAME    enable decoder NAME
125   --disable-decoders       disable all decoders
126   --disable-hwaccel=NAME   disable hwaccel NAME
127   --enable-hwaccel=NAME    enable hwaccel NAME
128   --disable-hwaccels       disable all hwaccels
129   --disable-muxer=NAME     disable muxer NAME
130   --enable-muxer=NAME      enable muxer NAME
131   --disable-muxers         disable all muxers
132   --disable-demuxer=NAME   disable demuxer NAME
133   --enable-demuxer=NAME    enable demuxer NAME
134   --disable-demuxers       disable all demuxers
135   --enable-parser=NAME     enable parser NAME
136   --disable-parser=NAME    disable parser NAME
137   --disable-parsers        disable all parsers
138   --enable-bsf=NAME        enable bitstream filter NAME
139   --disable-bsf=NAME       disable bitstream filter NAME
140   --disable-bsfs           disable all bitstream filters
141   --enable-protocol=NAME   enable protocol NAME
142   --disable-protocol=NAME  disable protocol NAME
143   --disable-protocols      disable all protocols
144   --disable-indev=NAME     disable input device NAME
145   --disable-outdev=NAME    disable output device NAME
146   --disable-indevs         disable input devices
147   --disable-outdevs        disable output devices
148   --disable-devices        disable all devices
149   --enable-filter=NAME     enable filter NAME
150   --disable-filter=NAME    disable filter NAME
151   --disable-filters        disable all filters
152   --list-decoders          show all available decoders
153   --list-encoders          show all available encoders
154   --list-hwaccels          show all available hardware accelerators
155   --list-muxers            show all available muxers
156   --list-demuxers          show all available demuxers
157   --list-parsers           show all available parsers
158   --list-protocols         show all available protocols
159   --list-bsfs              show all available bitstream filters
160   --list-indevs            show all available input devices
161   --list-outdevs           show all available output devices
162   --list-filters           show all available filters
163
164 External library support:
165   --enable-avisynth        enable reading of AVISynth script files [no]
166   --enable-bzlib           enable bzlib [autodetect]
167   --enable-frei0r          enable frei0r video filtering
168   --enable-gnutls          enable gnutls [no]
169   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
170   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
171   --enable-libopencv       enable video filtering via libopencv [no]
172   --enable-libcdio         enable audio CD grabbing with libcdio
173   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
174                            and libraw1394 [no]
175   --enable-libdirac        enable Dirac support via libdirac [no]
176   --enable-libfaac         enable FAAC support via libfaac [no]
177   --enable-libfreetype     enable libfreetype [no]
178   --enable-libgsm          enable GSM support via libgsm [no]
179   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
180   --enable-libnut          enable NUT (de)muxing via libnut,
181                            native (de)muxer exists [no]
182   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
183   --enable-libpulse        enable Pulseaudio input via libpulse [no]
184   --enable-librtmp         enable RTMP[E] support via librtmp [no]
185   --enable-libschroedinger enable Dirac support via libschroedinger [no]
186   --enable-libspeex        enable Speex support via libspeex [no]
187   --enable-libtheora       enable Theora encoding via libtheora [no]
188   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
189   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
190   --enable-libvorbis       enable Vorbis encoding via libvorbis,
191                            native implementation exists [no]
192   --enable-libvpx          enable VP8 support via libvpx [no]
193   --enable-libx264         enable H.264 encoding via x264 [no]
194   --enable-libxavs         enable AVS encoding via xavs [no]
195   --enable-libxvid         enable Xvid encoding via xvidcore,
196                            native MPEG-4/Xvid encoder exists [no]
197   --enable-mlib            enable Sun medialib [no]
198   --enable-openssl         enable openssl [no]
199   --enable-zlib            enable zlib [autodetect]
200
201 Advanced options (experts only):
202   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
203   --enable-cross-compile   assume a cross-compiler is used
204   --sysroot=PATH           root of cross-build tree
205   --sysinclude=PATH        location of cross-build system headers
206   --target-os=OS           compiler targets OS [$target_os]
207   --target-exec=CMD        command to run executables on target
208   --target-path=DIR        path to view of build directory on target
209   --nm=NM                  use nm tool
210   --ar=AR                  use archive tool AR [$ar_default]
211   --as=AS                  use assembler AS [$as_default]
212   --cc=CC                  use C compiler CC [$cc_default]
213   --ld=LD                  use linker LD
214   --host-cc=HOSTCC         use host C compiler HOSTCC
215   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
216   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
217   --host-libs=HLIBS        use libs HLIBS when linking for host
218   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
219   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
220   --extra-libs=ELIBS       add ELIBS [$ELIBS]
221   --extra-version=STRING   version string suffix []
222   --build-suffix=SUFFIX    library name suffix []
223   --arch=ARCH              select architecture [$arch]
224   --cpu=CPU                select the minimum required CPU (affects
225                            instruction selection, may crash on older CPUs)
226   --disable-asm            disable all assembler optimizations
227   --disable-altivec        disable AltiVec optimizations
228   --disable-amd3dnow       disable 3DNow! optimizations
229   --disable-amd3dnowext    disable 3DNow! extended optimizations
230   --disable-mmx            disable MMX optimizations
231   --disable-mmx2           disable MMX2 optimizations
232   --disable-sse            disable SSE optimizations
233   --disable-ssse3          disable SSSE3 optimizations
234   --disable-avx            disable AVX optimizations
235   --disable-armv5te        disable armv5te optimizations
236   --disable-armv6          disable armv6 optimizations
237   --disable-armv6t2        disable armv6t2 optimizations
238   --disable-armvfp         disable ARM VFP optimizations
239   --disable-iwmmxt         disable iwmmxt optimizations
240   --disable-mmi            disable MMI optimizations
241   --disable-neon           disable NEON optimizations
242   --disable-vis            disable VIS optimizations
243   --disable-yasm           disable use of yasm assembler
244   --enable-pic             build position-independent code
245   --malloc-prefix=PFX      prefix malloc and related names with PFX
246   --enable-sram            allow use of on-chip SRAM
247   --disable-symver         disable symbol versioning
248   --optflags               override optimization-related compiler flags
249
250 Developer options (useful when working on Libav itself):
251   --disable-debug          disable debugging symbols
252   --enable-debug=LEVEL     set the debug level [$debuglevel]
253   --disable-optimizations  disable compiler optimizations
254   --enable-extra-warnings  enable more compiler warnings
255   --samples=PATH           location of test samples for FATE, if not set use
256                            \$FATE_SAMPLES at make invocation time.
257
258 NOTE: Object files are built at the place where configure is launched.
259 EOF
260   exit 0
261 }
262
263 quotes='""'
264
265 log(){
266     echo "$@" >> $logfile
267 }
268
269 log_file(){
270     log BEGIN $1
271     pr -n -t $1 >> $logfile
272     log END $1
273 }
274
275 echolog(){
276     log "$@"
277     echo "$@"
278 }
279
280 warn(){
281     log "WARNING: $*"
282     WARNINGS="${WARNINGS}WARNING: $*\n"
283 }
284
285 die(){
286     echolog "$@"
287     cat <<EOF
288
289 If you think configure made a mistake, make sure you are using the latest
290 version from Git.  If the latest version fails, report the problem to the
291 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
292 EOF
293     if disabled logging; then
294         cat <<EOF
295 Rerun configure with logging enabled (do not use --disable-logging), and
296 include the log this produces with your report.
297 EOF
298     else
299 cat <<EOF
300 Include the log file "$logfile" produced by configure as this will help
301 solving the problem.
302 EOF
303     fi
304     exit 1
305 }
306
307 # Avoid locale weirdness, besides we really just want to translate ASCII.
308 toupper(){
309     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
310 }
311
312 tolower(){
313     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
314 }
315
316 c_escape(){
317     echo "$*" | sed 's/["\\]/\\\0/g'
318 }
319
320 sh_quote(){
321     v=$(echo "$1" | sed "s/'/'\\\\''/g")
322     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
323     echo "$v"
324 }
325
326 cleanws(){
327     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
328 }
329
330 filter(){
331     pat=$1
332     shift
333     for v; do
334         eval "case $v in $pat) echo $v ;; esac"
335     done
336 }
337
338 filter_out(){
339     pat=$1
340     shift
341     for v; do
342         eval "case $v in $pat) ;; *) echo $v ;; esac"
343     done
344 }
345
346 map(){
347     m=$1
348     shift
349     for v; do eval $m; done
350 }
351
352 set_all(){
353     value=$1
354     shift
355     for var in $*; do
356         eval $var=$value
357     done
358 }
359
360 set_weak(){
361     value=$1
362     shift
363     for var; do
364         eval : \${$var:=$value}
365     done
366 }
367
368 set_safe(){
369     var=$1
370     shift
371     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
372 }
373
374 get_safe(){
375     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
376 }
377
378 pushvar(){
379     for var in $*; do
380         eval level=\${${var}_level:=0}
381         eval ${var}_${level}="\$$var"
382         eval ${var}_level=$(($level+1))
383     done
384 }
385
386 popvar(){
387     for var in $*; do
388         eval level=\${${var}_level:-0}
389         test $level = 0 && continue
390         eval level=$(($level-1))
391         eval $var="\${${var}_${level}}"
392         eval ${var}_level=$level
393         eval unset ${var}_${level}
394     done
395 }
396
397 enable(){
398     set_all yes $*
399 }
400
401 disable(){
402     set_all no $*
403 }
404
405 enable_weak(){
406     set_weak yes $*
407 }
408
409 disable_weak(){
410     set_weak no $*
411 }
412
413 enable_safe(){
414     for var; do
415         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
416     done
417 }
418
419 disable_safe(){
420     for var; do
421         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
422     done
423 }
424
425 do_enable_deep(){
426     for var; do
427         enabled $var && continue
428         eval sel="\$${var}_select"
429         eval sgs="\$${var}_suggest"
430         pushvar var sgs
431         enable_deep $sel
432         popvar sgs
433         enable_deep_weak $sgs
434         popvar var
435     done
436 }
437
438 enable_deep(){
439     do_enable_deep $*
440     enable $*
441 }
442
443 enable_deep_weak(){
444     do_enable_deep $*
445     enable_weak $*
446 }
447
448 enabled(){
449     test "${1#!}" = "$1" && op== || op=!=
450     eval test "x\$${1#!}" $op "xyes"
451 }
452
453 disabled(){
454     test "${1#!}" = "$1" && op== || op=!=
455     eval test "x\$${1#!}" $op "xno"
456 }
457
458 enabled_all(){
459     for opt; do
460         enabled $opt || return 1
461     done
462 }
463
464 disabled_all(){
465     for opt; do
466         disabled $opt || return 1
467     done
468 }
469
470 enabled_any(){
471     for opt; do
472         enabled $opt && return 0
473     done
474 }
475
476 disabled_any(){
477     for opt; do
478         disabled $opt && return 0
479     done
480     return 1
481 }
482
483 set_default(){
484     for opt; do
485         eval : \${$opt:=\$${opt}_default}
486     done
487 }
488
489 is_in(){
490     value=$1
491     shift
492     for var in $*; do
493         [ $var = $value ] && return 0
494     done
495     return 1
496 }
497
498 check_deps(){
499     for cfg; do
500         cfg="${cfg#!}"
501         enabled ${cfg}_checking && die "Circular dependency for $cfg."
502         disabled ${cfg}_checking && continue
503         enable ${cfg}_checking
504
505         eval dep_all="\$${cfg}_deps"
506         eval dep_any="\$${cfg}_deps_any"
507         eval dep_sel="\$${cfg}_select"
508         eval dep_sgs="\$${cfg}_suggest"
509         eval dep_ifa="\$${cfg}_if"
510         eval dep_ifn="\$${cfg}_if_any"
511
512         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
513         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
514         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
515
516         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
517         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
518         enabled_all  $dep_all || disable $cfg
519         enabled_any  $dep_any || disable $cfg
520         disabled_any $dep_sel && disable $cfg
521
522         if enabled $cfg; then
523             eval dep_extralibs="\$${cfg}_extralibs"
524             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
525             enable_deep $dep_sel
526             enable_deep_weak $dep_sgs
527         fi
528
529         disable ${cfg}_checking
530     done
531 }
532
533 print_config_h(){
534     enabled $1 && v=1 || v=0
535     echo "#define $2 $v"
536 }
537
538 print_config_mak(){
539     enabled $1 && v= || v=!
540     echo "$v$2=yes"
541 }
542
543 print_config_asm(){
544     enabled $1 && echo "%define $2"
545 }
546
547 print_config(){
548     pfx=$1
549     files=$2
550     shift 2
551     for cfg; do
552         ucname="$(toupper $cfg)"
553         for f in $files; do
554             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
555         done
556     done
557 }
558
559 print_enabled(){
560     test "$1" = -n && end=" " && shift || end="\n"
561     suf=$1
562     shift
563     for v; do
564         enabled $v && printf "%s$end" ${v%$suf};
565     done
566 }
567
568 append(){
569     var=$1
570     shift
571     eval "$var=\"\$$var $*\""
572 }
573
574 prepend(){
575     var=$1
576     shift
577     eval "$var=\"$* \$$var\""
578 }
579
580 add_cppflags(){
581     append CPPFLAGS $($filter_cppflags "$@")
582 }
583
584 add_cflags(){
585     append CFLAGS $($filter_cflags "$@")
586 }
587
588 add_asflags(){
589     append ASFLAGS $($filter_asflags "$@")
590 }
591
592 add_ldflags(){
593     append LDFLAGS "$@"
594 }
595
596 add_extralibs(){
597     prepend extralibs "$@"
598 }
599
600 check_cmd(){
601     log "$@"
602     "$@" >> $logfile 2>&1
603 }
604
605 check_cc(){
606     log check_cc "$@"
607     cat > $TMPC
608     log_file $TMPC
609     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
610 }
611
612 check_cpp(){
613     log check_cpp "$@"
614     cat > $TMPC
615     log_file $TMPC
616     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
617 }
618
619 check_as(){
620     log check_as "$@"
621     cat > $TMPC
622     log_file $TMPC
623     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
624 }
625
626 check_asm(){
627     log check_asm "$@"
628     name="$1"
629     code="$2"
630     shift 2
631     disable $name
632     check_as "$@" <<EOF && enable $name
633 void foo(void){ __asm__ volatile($code); }
634 EOF
635 }
636
637 check_yasm(){
638     log check_yasm "$@"
639     echo "$1" > $TMPS
640     log_file $TMPS
641     shift 1
642     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
643 }
644
645 check_ld(){
646     log check_ld "$@"
647     flags=''
648     libs=''
649     for f; do
650         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
651     done
652     check_cc $($filter_cflags $flags) || return
653     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
654 }
655
656 check_cppflags(){
657     log check_cppflags "$@"
658     set -- $($filter_cppflags "$@")
659     check_cc "$@" <<EOF && append CPPFLAGS "$@"
660 int x;
661 EOF
662 }
663
664 check_cflags(){
665     log check_cflags "$@"
666     set -- $($filter_cflags "$@")
667     check_cc "$@" <<EOF && append CFLAGS "$@"
668 int x;
669 EOF
670 }
671
672 test_ldflags(){
673     log test_ldflags "$@"
674     check_ld "$@" <<EOF
675 int main(void){ return 0; }
676 EOF
677 }
678
679 check_ldflags(){
680     log check_ldflags "$@"
681     test_ldflags "$@" && add_ldflags "$@"
682 }
683
684 check_header(){
685     log check_header "$@"
686     header=$1
687     shift
688     disable_safe $header
689     check_cpp "$@" <<EOF && enable_safe $header
690 #include <$header>
691 int x;
692 EOF
693 }
694
695 check_func(){
696     log check_func "$@"
697     func=$1
698     shift
699     disable $func
700     check_ld "$@" <<EOF && enable $func
701 extern int $func();
702 int main(void){ $func(); }
703 EOF
704 }
705
706 check_mathfunc(){
707     log check_mathfunc "$@"
708     func=$1
709     shift
710     disable $func
711     check_ld "$@" <<EOF && enable $func
712 #include <math.h>
713 float foo(float f) { return $func(f); }
714 int main(void){ return 0; }
715 EOF
716 }
717
718 check_func_headers(){
719     log check_func_headers "$@"
720     headers=$1
721     funcs=$2
722     shift 2
723     {
724         for hdr in $headers; do
725             echo "#include <$hdr>"
726         done
727         for func in $funcs; do
728             echo "long check_$func(void) { return (long) $func; }"
729         done
730         echo "int main(void) { return 0; }"
731     } | check_ld "$@" && enable $funcs && enable_safe $headers
732 }
733
734 check_cpp_condition(){
735     log check_cpp_condition "$@"
736     header=$1
737     condition=$2
738     shift 2
739     check_cpp $($filter_cppflags "$@") <<EOF
740 #include <$header>
741 #if !($condition)
742 #error "unsatisfied condition: $condition"
743 #endif
744 EOF
745 }
746
747 check_lib(){
748     log check_lib "$@"
749     header="$1"
750     func="$2"
751     shift 2
752     check_header $header && check_func $func "$@" && add_extralibs "$@"
753 }
754
755 check_lib2(){
756     log check_lib2 "$@"
757     headers="$1"
758     funcs="$2"
759     shift 2
760     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
761 }
762
763 check_pkg_config(){
764     log check_pkg_config "$@"
765     pkg="$1"
766     headers="$2"
767     funcs="$3"
768     shift 3
769     $pkg_config --exists $pkg || return
770     pkg_cflags=$($pkg_config --cflags $pkg)
771     pkg_libs=$($pkg_config --libs $pkg)
772     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
773         set_safe ${pkg}_cflags $pkg_cflags   &&
774         set_safe ${pkg}_libs   $pkg_libs
775 }
776
777 check_exec(){
778     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
779 }
780
781 check_exec_crash(){
782     code=$(cat)
783
784     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
785     # are safe but may not be available everywhere.  Thus we use
786     # raise(SIGTERM) instead.  The check is run in a subshell so we
787     # can redirect the "Terminated" message from the shell.  SIGBUS
788     # is not defined by standard C so it is used conditionally.
789
790     (check_exec "$@") >> $logfile 2>&1 <<EOF
791 #include <signal.h>
792 static void sighandler(int sig){
793     raise(SIGTERM);
794 }
795 int main(void){
796     signal(SIGILL, sighandler);
797     signal(SIGFPE, sighandler);
798     signal(SIGSEGV, sighandler);
799 #ifdef SIGBUS
800     signal(SIGBUS, sighandler);
801 #endif
802     { $code }
803 }
804 EOF
805 }
806
807 check_type(){
808     log check_type "$@"
809     headers=$1
810     type=$2
811     shift 2
812     disable_safe "$type"
813     incs=""
814     for hdr in $headers; do
815         incs="$incs
816 #include <$hdr>"
817     done
818     check_cc "$@" <<EOF && enable_safe "$type"
819 $incs
820 $type v;
821 EOF
822 }
823
824 check_struct(){
825     log check_type "$@"
826     headers=$1
827     struct=$2
828     member=$3
829     shift 3
830     disable_safe "${struct}_${member}"
831     incs=""
832     for hdr in $headers; do
833         incs="$incs
834 #include <$hdr>"
835     done
836     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
837 $incs
838 const void *p = &(($struct *)0)->$member;
839 EOF
840 }
841
842 require(){
843     name="$1"
844     header="$2"
845     func="$3"
846     shift 3
847     check_lib $header $func "$@" || die "ERROR: $name not found"
848 }
849
850 require2(){
851     name="$1"
852     headers="$2"
853     func="$3"
854     shift 3
855     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
856 }
857
858 require_pkg_config(){
859     pkg="$1"
860     check_pkg_config "$@" || die "ERROR: $pkg not found"
861     add_cflags    $(get_safe ${pkg}_cflags)
862     add_extralibs $(get_safe ${pkg}_libs)
863 }
864
865 check_host_cc(){
866     log check_host_cc "$@"
867     cat > $TMPC
868     log_file $TMPC
869     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
870 }
871
872 check_host_cflags(){
873     log check_host_cflags "$@"
874     check_host_cc "$@" <<EOF && append host_cflags "$@"
875 int x;
876 EOF
877 }
878
879 apply(){
880     file=$1
881     shift
882     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
883 }
884
885 cp_if_changed(){
886     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
887     mkdir -p "$(dirname $2)"
888     cp -f "$1" "$2"
889 }
890
891 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
892 # system-dependent things.
893
894 COMPONENT_LIST="
895     bsfs
896     decoders
897     demuxers
898     encoders
899     filters
900     hwaccels
901     indevs
902     muxers
903     outdevs
904     parsers
905     protocols
906 "
907
908 PROGRAM_LIST="
909     avconv
910     avplay
911     avprobe
912     avserver
913 "
914
915 CONFIG_LIST="
916     $COMPONENT_LIST
917     $PROGRAM_LIST
918     aandct
919     ac3dsp
920     avcodec
921     avdevice
922     avfilter
923     avformat
924     avisynth
925     bzlib
926     dct
927     doc
928     dwt
929     dxva2
930     fastdiv
931     fft
932     frei0r
933     gnutls
934     golomb
935     gpl
936     gray
937     h264chroma
938     h264dsp
939     h264pred
940     hardcoded_tables
941     huffman
942     libcdio
943     libdc1394
944     libdirac
945     libfaac
946     libfreetype
947     libgsm
948     libmp3lame
949     libnut
950     libopencore_amrnb
951     libopencore_amrwb
952     libopencv
953     libopenjpeg
954     libpulse
955     librtmp
956     libschroedinger
957     libspeex
958     libtheora
959     libvo_aacenc
960     libvo_amrwbenc
961     libvorbis
962     libvpx
963     libx264
964     libxavs
965     libxvid
966     lpc
967     lsp
968     mdct
969     memalign_hack
970     mlib
971     mpegaudiodsp
972     network
973     nonfree
974     openssl
975     pic
976     postproc
977     rdft
978     rtpdec
979     runtime_cpudetect
980     safe_bitstream_reader
981     shared
982     sinewin
983     small
984     sram
985     static
986     swscale
987     swscale_alpha
988     thumb
989     vaapi
990     vda
991     vdpau
992     version3
993     x11grab
994     zlib
995 "
996
997 THREADS_LIST='
998     pthreads
999     w32threads
1000 '
1001
1002 ARCH_LIST='
1003     alpha
1004     arm
1005     avr32
1006     avr32_ap
1007     avr32_uc
1008     bfin
1009     ia64
1010     m68k
1011     mips
1012     mips64
1013     parisc
1014     ppc
1015     ppc64
1016     s390
1017     sh4
1018     sparc
1019     sparc64
1020     tomi
1021     x86
1022     x86_32
1023     x86_64
1024 '
1025
1026 ARCH_EXT_LIST='
1027     altivec
1028     amd3dnow
1029     amd3dnowext
1030     armv5te
1031     armv6
1032     armv6t2
1033     armvfp
1034     avx
1035     iwmmxt
1036     mmi
1037     mmx
1038     mmx2
1039     neon
1040     ppc4xx
1041     sse
1042     ssse3
1043     vfpv3
1044     vis
1045 '
1046
1047 HAVE_LIST_PUB='
1048     bigendian
1049     fast_unaligned
1050 '
1051
1052 HAVE_LIST="
1053     $ARCH_EXT_LIST
1054     $HAVE_LIST_PUB
1055     $THREADS_LIST
1056     aligned_stack
1057     alsa_asoundlib_h
1058     altivec_h
1059     arpa_inet_h
1060     asm_mod_y
1061     attribute_may_alias
1062     attribute_packed
1063     closesocket
1064     cmov
1065     dcbzl
1066     dev_bktr_ioctl_bt848_h
1067     dev_bktr_ioctl_meteor_h
1068     dev_ic_bt8xx_h
1069     dev_video_bktr_ioctl_bt848_h
1070     dev_video_meteor_ioctl_meteor_h
1071     dlfcn_h
1072     dlopen
1073     dos_paths
1074     ebp_available
1075     ebx_available
1076     exp2
1077     exp2f
1078     fast_64bit
1079     fast_clz
1080     fast_cmov
1081     fcntl
1082     fork
1083     getaddrinfo
1084     gethrtime
1085     GetProcessAffinityMask
1086     GetProcessMemoryInfo
1087     GetProcessTimes
1088     getrusage
1089     gnu_as
1090     ibm_asm
1091     inet_aton
1092     inline_asm
1093     isatty
1094     ldbrx
1095     libdc1394_1
1096     libdc1394_2
1097     llrint
1098     llrintf
1099     local_aligned_16
1100     local_aligned_8
1101     localtime_r
1102     log2
1103     log2f
1104     loongson
1105     lrint
1106     lrintf
1107     lzo1x_999_compress
1108     machine_ioctl_bt848_h
1109     machine_ioctl_meteor_h
1110     malloc_h
1111     MapViewOfFile
1112     memalign
1113     mkstemp
1114     mmap
1115     poll_h
1116     posix_memalign
1117     round
1118     roundf
1119     sched_getaffinity
1120     sdl
1121     sdl_video_size
1122     setmode
1123     setrlimit
1124     sndio_h
1125     socklen_t
1126     soundcard_h
1127     strerror_r
1128     strptime
1129     strtok_r
1130     struct_addrinfo
1131     struct_ipv6_mreq
1132     struct_rusage_ru_maxrss
1133     struct_sockaddr_in6
1134     struct_sockaddr_sa_len
1135     struct_sockaddr_storage
1136     struct_v4l2_frmivalenum_discrete
1137     symver
1138     symver_asm_label
1139     symver_gnu_asm
1140     sysconf
1141     sysctl
1142     sys_mman_h
1143     sys_param_h
1144     sys_resource_h
1145     sys_select_h
1146     sys_soundcard_h
1147     sys_videoio_h
1148     threads
1149     trunc
1150     truncf
1151     vfp_args
1152     VirtualAlloc
1153     winsock2_h
1154     xform_asm
1155     xmm_clobbers
1156     yasm
1157 "
1158
1159 # options emitted with CONFIG_ prefix but not available on command line
1160 CONFIG_EXTRA="
1161     avutil
1162     gplv3
1163     lgplv3
1164 "
1165
1166 CMDLINE_SELECT="
1167     $ARCH_EXT_LIST
1168     $CONFIG_LIST
1169     $THREADS_LIST
1170     asm
1171     cross_compile
1172     debug
1173     extra_warnings
1174     logging
1175     optimizations
1176     symver
1177     yasm
1178 "
1179
1180 PATHS_LIST='
1181     bindir
1182     datadir
1183     incdir
1184     libdir
1185     mandir
1186     prefix
1187     shlibdir
1188 '
1189
1190 CMDLINE_SET="
1191     $PATHS_LIST
1192     ar
1193     arch
1194     as
1195     build_suffix
1196     cc
1197     cpu
1198     cross_prefix
1199     dep_cc
1200     extra_version
1201     host_cc
1202     host_cflags
1203     host_ldflags
1204     host_libs
1205     host_os
1206     ld
1207     logfile
1208     malloc_prefix
1209     nm
1210     optflags
1211     pkg_config
1212     samples
1213     sysinclude
1214     sysroot
1215     target_exec
1216     target_os
1217     target_path
1218 "
1219
1220 CMDLINE_APPEND="
1221     extra_cflags
1222 "
1223
1224 # code dependency declarations
1225
1226 # architecture extensions
1227
1228 armv5te_deps="arm"
1229 armv6_deps="arm"
1230 armv6t2_deps="arm"
1231 armvfp_deps="arm"
1232 iwmmxt_deps="arm"
1233 neon_deps="arm"
1234 vfpv3_deps="armvfp"
1235
1236 mmi_deps="mips"
1237
1238 altivec_deps="ppc"
1239 ppc4xx_deps="ppc"
1240
1241 vis_deps="sparc"
1242
1243 x86_64_suggest="cmov fast_cmov"
1244 amd3dnow_deps="mmx"
1245 amd3dnowext_deps="amd3dnow"
1246 mmx_deps="x86"
1247 mmx2_deps="mmx"
1248 sse_deps="mmx"
1249 ssse3_deps="sse"
1250 avx_deps="ssse3"
1251
1252 aligned_stack_if_any="ppc x86"
1253 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1254 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1255 fast_unaligned_if_any="armv6 ppc x86"
1256
1257 inline_asm_deps="!tms470"
1258 need_memalign="altivec neon sse"
1259
1260 symver_if_any="symver_asm_label symver_gnu_asm"
1261
1262 # subsystems
1263 dct_select="rdft"
1264 mdct_select="fft"
1265 rdft_select="fft"
1266 mpegaudiodsp_select="dct"
1267
1268 # decoders / encoders / hardware accelerators
1269 aac_decoder_select="mdct sinewin"
1270 aac_encoder_select="mdct sinewin"
1271 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1272 ac3_decoder_select="mdct ac3dsp ac3_parser"
1273 ac3_encoder_select="mdct ac3dsp"
1274 ac3_fixed_encoder_select="mdct ac3dsp"
1275 alac_encoder_select="lpc"
1276 amrnb_decoder_select="lsp"
1277 amrwb_decoder_select="lsp"
1278 atrac1_decoder_select="mdct sinewin"
1279 atrac3_decoder_select="mdct"
1280 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1281 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1282 cavs_decoder_select="golomb"
1283 cook_decoder_select="mdct sinewin"
1284 cscd_decoder_suggest="zlib"
1285 dca_decoder_select="mdct"
1286 dnxhd_encoder_select="aandct"
1287 dxa_decoder_select="zlib"
1288 eac3_decoder_select="ac3_decoder"
1289 eac3_encoder_select="mdct ac3dsp"
1290 eamad_decoder_select="aandct"
1291 eatgq_decoder_select="aandct"
1292 eatqi_decoder_select="aandct"
1293 ffv1_decoder_select="golomb"
1294 flac_decoder_select="golomb"
1295 flac_encoder_select="golomb lpc"
1296 flashsv_decoder_select="zlib"
1297 flashsv_encoder_select="zlib"
1298 flashsv2_decoder_select="zlib"
1299 flv_decoder_select="h263_decoder"
1300 flv_encoder_select="h263_encoder"
1301 fraps_decoder_select="huffman"
1302 h261_encoder_select="aandct"
1303 h263_decoder_select="h263_parser"
1304 h263_encoder_select="aandct"
1305 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1306 h263i_decoder_select="h263_decoder"
1307 h263p_encoder_select="h263_encoder"
1308 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1309 h264_dxva2_hwaccel_deps="dxva2api_h"
1310 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1311 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1312 h264_vda_hwaccel_select="vda h264_decoder"
1313 h264_vdpau_decoder_select="vdpau h264_decoder"
1314 imc_decoder_select="fft mdct sinewin"
1315 jpegls_decoder_select="golomb"
1316 jpegls_encoder_select="golomb"
1317 ljpeg_encoder_select="aandct"
1318 loco_decoder_select="golomb"
1319 mjpeg_encoder_select="aandct"
1320 mlp_decoder_select="mlp_parser"
1321 mp1_decoder_select="mpegaudiodsp"
1322 mp1float_decoder_select="mpegaudiodsp"
1323 mp2_decoder_select="mpegaudiodsp"
1324 mp2float_decoder_select="mpegaudiodsp"
1325 mp3_decoder_select="mpegaudiodsp"
1326 mp3adu_decoder_select="mpegaudiodsp"
1327 mp3adufloat_decoder_select="mpegaudiodsp"
1328 mp3float_decoder_select="mpegaudiodsp"
1329 mp3on4_decoder_select="mpegaudiodsp"
1330 mp3on4float_decoder_select="mpegaudiodsp"
1331 mpc7_decoder_select="mpegaudiodsp"
1332 mpc8_decoder_select="mpegaudiodsp"
1333 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1334 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1335 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1336 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1337 mpeg1video_encoder_select="aandct"
1338 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1339 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1340 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1341 mpeg2video_encoder_select="aandct"
1342 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1343 mpeg4_encoder_select="h263_encoder"
1344 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1345 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1346 msmpeg4v1_decoder_select="h263_decoder"
1347 msmpeg4v1_encoder_select="h263_encoder"
1348 msmpeg4v2_decoder_select="h263_decoder"
1349 msmpeg4v2_encoder_select="h263_encoder"
1350 msmpeg4v3_decoder_select="h263_decoder"
1351 msmpeg4v3_encoder_select="h263_encoder"
1352 nellymoser_decoder_select="mdct sinewin"
1353 nellymoser_encoder_select="mdct sinewin"
1354 png_decoder_select="zlib"
1355 png_encoder_select="zlib"
1356 qcelp_decoder_select="lsp"
1357 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1358 ra_144_encoder_select="lpc"
1359 rv10_decoder_select="h263_decoder"
1360 rv10_encoder_select="h263_encoder"
1361 rv20_decoder_select="h263_decoder"
1362 rv20_encoder_select="h263_encoder"
1363 rv30_decoder_select="golomb h264chroma h264pred"
1364 rv40_decoder_select="golomb h264chroma h264pred"
1365 shorten_decoder_select="golomb"
1366 sipr_decoder_select="lsp"
1367 snow_decoder_select="dwt"
1368 snow_encoder_select="aandct dwt"
1369 svq1_encoder_select="aandct"
1370 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1371 svq3_decoder_suggest="zlib"
1372 theora_decoder_select="vp3_decoder"
1373 tiff_decoder_suggest="zlib"
1374 tiff_encoder_suggest="zlib"
1375 truehd_decoder_select="mlp_decoder"
1376 tscc_decoder_select="zlib"
1377 twinvq_decoder_select="mdct lsp sinewin"
1378 vc1_decoder_select="h263_decoder h264chroma"
1379 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1380 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1381 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1382 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1383 vc1image_decoder_select="vc1_decoder"
1384 vorbis_decoder_select="mdct"
1385 vorbis_encoder_select="mdct"
1386 vp6_decoder_select="huffman"
1387 vp6a_decoder_select="vp6_decoder"
1388 vp6f_decoder_select="vp6_decoder"
1389 vp8_decoder_select="h264pred"
1390 wmapro_decoder_select="mdct sinewin"
1391 wmav1_decoder_select="mdct sinewin"
1392 wmav1_encoder_select="mdct sinewin"
1393 wmav2_decoder_select="mdct sinewin"
1394 wmav2_encoder_select="mdct sinewin"
1395 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1396 wmv1_decoder_select="h263_decoder"
1397 wmv1_encoder_select="h263_encoder"
1398 wmv2_decoder_select="h263_decoder"
1399 wmv2_encoder_select="h263_encoder"
1400 wmv3_decoder_select="vc1_decoder"
1401 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1402 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1403 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1404 wmv3image_decoder_select="wmv3_decoder"
1405 zlib_decoder_select="zlib"
1406 zlib_encoder_select="zlib"
1407 zmbv_decoder_select="zlib"
1408 zmbv_encoder_select="zlib"
1409
1410 vaapi_deps="va_va_h"
1411 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1412 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1413
1414 # parsers
1415 h264_parser_select="golomb h264chroma h264dsp h264pred"
1416
1417 # external libraries
1418 libdirac_decoder_deps="libdirac !libschroedinger"
1419 libdirac_encoder_deps="libdirac"
1420 libfaac_encoder_deps="libfaac"
1421 libgsm_decoder_deps="libgsm"
1422 libgsm_encoder_deps="libgsm"
1423 libgsm_ms_decoder_deps="libgsm"
1424 libgsm_ms_encoder_deps="libgsm"
1425 libmp3lame_encoder_deps="libmp3lame"
1426 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1427 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1428 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1429 libopenjpeg_decoder_deps="libopenjpeg"
1430 libschroedinger_decoder_deps="libschroedinger"
1431 libschroedinger_encoder_deps="libschroedinger"
1432 libspeex_decoder_deps="libspeex"
1433 libspeex_encoder_deps="libspeex"
1434 libtheora_encoder_deps="libtheora"
1435 libvo_aacenc_encoder_deps="libvo_aacenc"
1436 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1437 libvorbis_encoder_deps="libvorbis"
1438 libvpx_decoder_deps="libvpx"
1439 libvpx_encoder_deps="libvpx"
1440 libx264_encoder_deps="libx264"
1441 libxavs_encoder_deps="libxavs"
1442 libxvid_encoder_deps="libxvid"
1443
1444 # demuxers / muxers
1445 ac3_demuxer_select="ac3_parser"
1446 asf_stream_muxer_select="asf_muxer"
1447 avisynth_demuxer_deps="avisynth"
1448 dirac_demuxer_select="dirac_parser"
1449 eac3_demuxer_select="ac3_parser"
1450 flac_demuxer_select="flac_parser"
1451 ipod_muxer_select="mov_muxer"
1452 libnut_demuxer_deps="libnut"
1453 libnut_muxer_deps="libnut"
1454 matroska_audio_muxer_select="matroska_muxer"
1455 matroska_demuxer_suggest="zlib bzlib"
1456 mov_demuxer_suggest="zlib"
1457 mp3_demuxer_select="mpegaudio_parser"
1458 mp4_muxer_select="mov_muxer"
1459 mpegtsraw_demuxer_select="mpegts_demuxer"
1460 mxf_d10_muxer_select="mxf_muxer"
1461 ogg_demuxer_select="golomb"
1462 psp_muxer_select="mov_muxer"
1463 rtp_demuxer_select="sdp_demuxer"
1464 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1465 rtsp_demuxer_select="http_protocol rtpdec"
1466 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1467 sap_demuxer_select="sdp_demuxer"
1468 sap_muxer_select="rtp_muxer rtp_protocol"
1469 sdp_demuxer_select="rtpdec"
1470 spdif_muxer_select="aac_parser"
1471 tg2_muxer_select="mov_muxer"
1472 tgp_muxer_select="mov_muxer"
1473 w64_demuxer_deps="wav_demuxer"
1474
1475 # indevs / outdevs
1476 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1477 alsa_outdev_deps="alsa_asoundlib_h"
1478 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1479 dv1394_indev_deps="dv1394 dv_demuxer"
1480 fbdev_indev_deps="linux_fb_h"
1481 jack_indev_deps="jack_jack_h"
1482 libcdio_indev_deps="libcdio"
1483 libdc1394_indev_deps="libdc1394"
1484 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1485 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1486 pulse_indev_deps="libpulse"
1487 sndio_indev_deps="sndio_h"
1488 sndio_outdev_deps="sndio_h"
1489 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1490 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1491 vfwcap_indev_extralibs="-lavicap32"
1492 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1493 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1494
1495 # protocols
1496 gopher_protocol_deps="network"
1497 httpproxy_protocol_deps="network"
1498 httpproxy_protocol_select="tcp_protocol"
1499 http_protocol_deps="network"
1500 http_protocol_select="tcp_protocol"
1501 https_protocol_select="tls_protocol"
1502 mmsh_protocol_select="http_protocol"
1503 mmst_protocol_deps="network"
1504 rtmp_protocol_select="tcp_protocol"
1505 rtp_protocol_select="udp_protocol"
1506 tcp_protocol_deps="network"
1507 tls_protocol_deps_any="openssl gnutls"
1508 tls_protocol_select="tcp_protocol"
1509 udp_protocol_deps="network"
1510
1511 # filters
1512 blackframe_filter_deps="gpl"
1513 boxblur_filter_deps="gpl"
1514 cropdetect_filter_deps="gpl"
1515 delogo_filter_deps="gpl"
1516 drawtext_filter_deps="libfreetype"
1517 frei0r_filter_deps="frei0r dlopen strtok_r"
1518 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1519 hqdn3d_filter_deps="gpl"
1520 ocv_filter_deps="libopencv"
1521 scale_filter_deps="swscale"
1522 yadif_filter_deps="gpl"
1523
1524 # libraries
1525 avdevice_deps="avcodec avformat"
1526 avformat_deps="avcodec"
1527 postproc_deps="gpl"
1528
1529 # programs
1530 avconv_deps="avcodec avformat swscale"
1531 avplay_deps="avcodec avformat swscale sdl"
1532 avplay_select="rdft"
1533 avprobe_deps="avcodec avformat"
1534 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1535 avserver_extralibs='$ldl'
1536
1537 doc_deps="texi2html"
1538
1539 # tests
1540
1541 test_deps(){
1542     suf1=$1
1543     suf2=$2
1544     shift 2
1545     for v; do
1546         dep=${v%=*}
1547         tests=${v#*=}
1548         for name in ${tests}; do
1549             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1550         done
1551     done
1552 }
1553
1554 mxf_d10_test_deps="avfilter"
1555 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1556
1557 test_deps _encoder _decoder                                             \
1558     adpcm_ima_qt                                                        \
1559     adpcm_ima_wav                                                       \
1560     adpcm_ms                                                            \
1561     adpcm_swf                                                           \
1562     adpcm_yamaha=adpcm_yam                                              \
1563     alac                                                                \
1564     asv1                                                                \
1565     asv2                                                                \
1566     bmp                                                                 \
1567     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1568     dvvideo="dv dv_411 dv50"                                            \
1569     ffv1                                                                \
1570     flac                                                                \
1571     flashsv                                                             \
1572     flv                                                                 \
1573     adpcm_g726=g726                                                     \
1574     gif                                                                 \
1575     h261                                                                \
1576     h263="h263 h263p"                                                   \
1577     huffyuv                                                             \
1578     jpegls                                                              \
1579     mjpeg="jpg mjpeg ljpeg"                                             \
1580     mp2                                                                 \
1581     mpeg1video="mpeg mpeg1b"                                            \
1582     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1583     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1584     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1585     mpeg4="mpeg4thread error rc"                                        \
1586     msmpeg4v3=msmpeg4                                                   \
1587     msmpeg4v2                                                           \
1588     pbm=pbmpipe                                                         \
1589     pcx                                                                 \
1590     pgm="pgm pgmpipe"                                                   \
1591     png                                                                 \
1592     ppm="ppm ppmpipe"                                                   \
1593     rawvideo="rgb yuv"                                                  \
1594     roq                                                                 \
1595     rv10                                                                \
1596     rv20                                                                \
1597     sgi                                                                 \
1598     snow="snow snowll"                                                  \
1599     svq1                                                                \
1600     targa=tga                                                           \
1601     tiff                                                                \
1602     wmav1                                                               \
1603     wmav2                                                               \
1604     wmv1                                                                \
1605     wmv2                                                                \
1606
1607 test_deps _muxer _demuxer                                               \
1608     aiff                                                                \
1609     pcm_alaw=alaw                                                       \
1610     asf                                                                 \
1611     au                                                                  \
1612     avi                                                                 \
1613     dv=dv_fmt                                                           \
1614     ffm                                                                 \
1615     flv=flv_fmt                                                         \
1616     gxf                                                                 \
1617     matroska=mkv                                                        \
1618     mmf                                                                 \
1619     mov                                                                 \
1620     pcm_mulaw=mulaw                                                     \
1621     mxf="mxf mxf_d10"                                                   \
1622     nut                                                                 \
1623     ogg                                                                 \
1624     rawvideo=pixfmt                                                     \
1625     rm                                                                  \
1626     swf                                                                 \
1627     mpegts=ts                                                           \
1628     voc                                                                 \
1629     wav                                                                 \
1630     yuv4mpegpipe=yuv4mpeg                                               \
1631
1632 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1633 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1634
1635 # default parameters
1636
1637 logfile="config.log"
1638
1639 # installation paths
1640 prefix_default="/usr/local"
1641 bindir_default='${prefix}/bin'
1642 datadir_default='${prefix}/share/avconv'
1643 incdir_default='${prefix}/include'
1644 libdir_default='${prefix}/lib'
1645 mandir_default='${prefix}/share/man'
1646 shlibdir_default="$libdir_default"
1647
1648 # toolchain
1649 ar_default="ar"
1650 cc_default="gcc"
1651 cc_version=\"unknown\"
1652 host_cc_default="gcc"
1653 ln_s="ln -sf"
1654 nm_default="nm"
1655 objformat="elf"
1656 pkg_config_default=pkg-config
1657 ranlib="ranlib"
1658 yasmexe="yasm"
1659
1660 nm_opts='-g'
1661 nogas=":"
1662
1663 # machine
1664 arch_default=$(uname -m)
1665 cpu="generic"
1666
1667 # OS
1668 target_os_default=$(tolower $(uname -s))
1669 host_os=$target_os_default
1670
1671 # configurable options
1672 enable $PROGRAM_LIST
1673
1674 enable avcodec
1675 enable avdevice
1676 enable avfilter
1677 enable avformat
1678 enable avutil
1679 enable swscale
1680
1681 enable asm
1682 enable debug
1683 enable doc
1684 enable fastdiv
1685 enable network
1686 enable optimizations
1687 enable safe_bitstream_reader
1688 enable static
1689 enable swscale_alpha
1690
1691 # build settings
1692 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1693 AVSERVERLDFLAGS=-Wl,-E
1694 LIBPREF="lib"
1695 LIBSUF=".a"
1696 FULLNAME='$(NAME)$(BUILDSUF)'
1697 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1698 SLIBPREF="lib"
1699 SLIBSUF=".so"
1700 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1701 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1702 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1703 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1704 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1705 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1706
1707 AS_O='-o $@'
1708 CC_O='-o $@'
1709
1710 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1711 host_libs='-lm'
1712
1713 target_path='$(CURDIR)'
1714
1715 # since the object filename is not given with the -MM flag, the compiler
1716 # is only able to print the basename, and we must add the path ourselves
1717 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1718 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1719
1720 # find source path
1721 if test -f configure; then
1722     source_path=.
1723 else
1724     source_path=$(cd $(dirname "$0"); pwd)
1725     echo "$source_path" | grep -q '[[:blank:]]' &&
1726         die "Out of tree builds are impossible with whitespace in source path."
1727     test -e "$source_path/config.h" &&
1728         die "Out of tree builds are impossible with config.h in source dir."
1729 fi
1730
1731 for v in "$@"; do
1732     r=${v#*=}
1733     l=${v%"$r"}
1734     r=$(sh_quote "$r")
1735     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1736 done
1737
1738 find_things(){
1739     thing=$1
1740     pattern=$2
1741     file=$source_path/$3
1742     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1743 }
1744
1745 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1746 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1747 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1748 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1749 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1750 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1751 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1752 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1753 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1754 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1755 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1756
1757 ALL_COMPONENTS="
1758     $BSF_LIST
1759     $DECODER_LIST
1760     $DEMUXER_LIST
1761     $ENCODER_LIST
1762     $FILTER_LIST
1763     $HWACCEL_LIST
1764     $INDEV_LIST
1765     $MUXER_LIST
1766     $OUTDEV_LIST
1767     $PARSER_LIST
1768     $PROTOCOL_LIST
1769 "
1770
1771 find_tests(){
1772     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1773 }
1774
1775 ACODEC_TESTS=$(find_tests acodec)
1776 VCODEC_TESTS=$(find_tests vsynth1)
1777 LAVF_TESTS=$(find_tests lavf)
1778 LAVFI_TESTS=$(find_tests lavfi)
1779 SEEK_TESTS=$(find_tests seek seek_)
1780
1781 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1782
1783 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1784
1785 for n in $COMPONENT_LIST; do
1786     v=$(toupper ${n%s})_LIST
1787     eval enable \$$v
1788     eval ${n}_if_any="\$$v"
1789 done
1790
1791 enable $ARCH_EXT_LIST $ALL_TESTS
1792
1793 die_unknown(){
1794     echo "Unknown option \"$1\"."
1795     echo "See $0 --help for available options."
1796     exit 1
1797 }
1798
1799 show_list() {
1800     suffix=_$1
1801     shift
1802     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1803     exit 0
1804 }
1805
1806 for opt do
1807     optval="${opt#*=}"
1808     case "$opt" in
1809     --extra-ldflags=*) add_ldflags $optval
1810     ;;
1811     --extra-libs=*) add_extralibs $optval
1812     ;;
1813     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1814     ;;
1815     --enable-debug=*) debuglevel="$optval"
1816     ;;
1817     --disable-everything)
1818     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1819     ;;
1820     --enable-*=*|--disable-*=*)
1821     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1822     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1823     eval list=\$$(toupper $thing)_LIST
1824     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1825     $action $(filter "$name" $list)
1826     ;;
1827     --enable-?*|--disable-?*)
1828     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1829     if is_in $option $COMPONENT_LIST; then
1830         test $action = disable && action=unset
1831         eval $action \$$(toupper ${option%s})_LIST
1832     elif is_in $option $CMDLINE_SELECT; then
1833         $action $option
1834     else
1835         die_unknown $opt
1836     fi
1837     ;;
1838     --list-*)
1839         NAME="${opt#--list-}"
1840         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1841         NAME=${NAME%s}
1842         eval show_list $NAME \$$(toupper $NAME)_LIST
1843     ;;
1844     --help|-h) show_help
1845     ;;
1846     *)
1847     optname="${opt%%=*}"
1848     optname="${optname#--}"
1849     optname=$(echo "$optname" | sed 's/-/_/g')
1850     if is_in $optname $CMDLINE_SET; then
1851         eval $optname='$optval'
1852     elif is_in $optname $CMDLINE_APPEND; then
1853         append $optname "$optval"
1854     else
1855          die_unknown $opt
1856     fi
1857     ;;
1858     esac
1859 done
1860
1861 disabled logging && logfile=/dev/null
1862
1863 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1864 set >> $logfile
1865
1866 test -n "$cross_prefix" && enable cross_compile
1867
1868 if enabled cross_compile; then
1869     test -n "$arch" && test -n "$target_os" ||
1870         die "Must specify target arch and OS when cross-compiling"
1871 fi
1872
1873 set_default arch target_os
1874
1875 ar_default="${cross_prefix}${ar_default}"
1876 cc_default="${cross_prefix}${cc_default}"
1877 nm_default="${cross_prefix}${nm_default}"
1878 pkg_config_default="${cross_prefix}${pkg_config_default}"
1879 ranlib="${cross_prefix}${ranlib}"
1880
1881 sysinclude_default="${sysroot}/usr/include"
1882
1883 set_default cc nm pkg_config sysinclude
1884 enabled cross_compile || host_cc_default=$cc
1885 set_default host_cc
1886
1887 if ! $pkg_config --version >/dev/null 2>&1; then
1888     warn "$pkg_config not found, library detection may fail."
1889     pkg_config=false
1890 fi
1891
1892 exesuf() {
1893     case $1 in
1894         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1895     esac
1896 }
1897
1898 EXESUF=$(exesuf $target_os)
1899 HOSTEXESUF=$(exesuf $host_os)
1900
1901 # set temporary file name
1902 : ${TMPDIR:=$TEMPDIR}
1903 : ${TMPDIR:=$TMP}
1904 : ${TMPDIR:=/tmp}
1905
1906 if ! check_cmd mktemp -u XXXXXX; then
1907     # simple replacement for missing mktemp
1908     # NOT SAFE FOR GENERAL USE
1909     mktemp(){
1910         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1911     }
1912 fi
1913
1914 tmpfile(){
1915     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1916         (set -C; exec > $tmp) 2>/dev/null ||
1917         die "Unable to create temporary file in $TMPDIR."
1918     append TMPFILES $tmp
1919     eval $1=$tmp
1920 }
1921
1922 trap 'rm -f -- $TMPFILES' EXIT
1923
1924 tmpfile TMPASM .asm
1925 tmpfile TMPC   .c
1926 tmpfile TMPE   $EXESUF
1927 tmpfile TMPH   .h
1928 tmpfile TMPO   .o
1929 tmpfile TMPS   .S
1930 tmpfile TMPSH  .sh
1931 tmpfile TMPV   .ver
1932
1933 unset -f mktemp
1934
1935 chmod +x $TMPE
1936
1937 # make sure we can execute files in $TMPDIR
1938 cat > $TMPSH 2>> $logfile <<EOF
1939 #! /bin/sh
1940 EOF
1941 chmod +x $TMPSH >> $logfile 2>&1
1942 if ! $TMPSH >> $logfile 2>&1; then
1943     cat <<EOF
1944 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1945 variable to another directory and make sure that it is not mounted noexec.
1946 EOF
1947     die "Sanity test failed."
1948 fi
1949
1950 filter_asflags=echo
1951 filter_cflags=echo
1952 filter_cppflags=echo
1953
1954 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1955     cc_type=llvm_gcc
1956     cc_version=__VERSION__
1957     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1958     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1959     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1960     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1961     speed_cflags='-O3'
1962     size_cflags='-Os'
1963 elif $cc -v 2>&1 | grep -qi ^gcc; then
1964     cc_type=gcc
1965     cc_version=__VERSION__
1966     gcc_version=$($cc --version | head -n1)
1967     gcc_basever=$($cc -dumpversion)
1968     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1969     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1970     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1971     if ! $cc -dumpversion | grep -q '^2\.'; then
1972         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1973         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1974     fi
1975     speed_cflags='-O3'
1976     size_cflags='-Os'
1977 elif $cc --version 2>/dev/null | grep -q Intel; then
1978     cc_type=icc
1979     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1980     cc_ident=$($cc --version | head -n1)
1981     icc_version=$($cc -dumpversion)
1982     CC_DEPFLAGS='-MMD'
1983     AS_DEPFLAGS='-MMD'
1984     speed_cflags='-O3'
1985     size_cflags='-Os'
1986     noopt_cflags='-O1'
1987 elif $cc -v 2>&1 | grep -q xlc; then
1988     cc_type=xlc
1989     cc_version="AV_STRINGIFY(__IBMC__)"
1990     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1991     speed_cflags='-O5'
1992     size_cflags='-O5 -qcompact'
1993 elif $cc -V 2>/dev/null | grep -q Compaq; then
1994     cc_type=ccc
1995     cc_version="AV_STRINGIFY(__DECC_VER)"
1996     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1997     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1998     debuglevel=3
1999     add_ldflags -Wl,-z,now # calls to libots crash without this
2000     speed_cflags='-fast'
2001     size_cflags='-O1'
2002 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2003     test -d "$sysroot" || die "No valid sysroot specified."
2004     cc_type=armcc
2005     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2006     cc_ident=$($cc --vsn | head -n1)
2007     armcc_conf="$PWD/armcc.conf"
2008     $cc --arm_linux_configure                 \
2009         --arm_linux_config_file="$armcc_conf" \
2010         --configure_sysroot="$sysroot"        \
2011         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2012         die "Error creating armcc configuration file."
2013     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2014     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2015     as_default="${cross_prefix}gcc"
2016     CC_DEPFLAGS='-MMD'
2017     AS_DEPFLAGS='-MMD'
2018     speed_cflags='-O3'
2019     size_cflags='-Os'
2020     filter_asflags="filter_out -W${armcc_opt}*"
2021 elif $cc -version 2>/dev/null | grep -q TMS470; then
2022     cc_type=tms470
2023     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2024     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2025     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2026     CC_O='-fr=$(@D)'
2027     as_default="${cross_prefix}gcc"
2028     ld_default="${cross_prefix}gcc"
2029     TMPO=$(basename $TMPC .c).o
2030     append TMPFILES $TMPO
2031     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2032     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2033     AS_DEPFLAGS='-MMD'
2034     speed_cflags='-O3 -mf=5'
2035     size_cflags='-O3 -mf=2'
2036     filter_cflags=tms470_flags
2037     tms470_flags(){
2038         for flag; do
2039             case $flag in
2040                 -march=*|-mcpu=*)
2041                     case "${flag#*=}" in
2042                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2043                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2044                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2045                         armv6*|arm11*)          echo -mv=6   ;;
2046                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2047                                                 echo -mv=5e  ;;
2048                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2049                     esac
2050                     ;;
2051                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2052                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2053                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2054                 -msoft-float)   echo --float_support=vfplib       ;;
2055                 -O[0-3]|-mf=*)  echo $flag                        ;;
2056                 -g)             echo -g -mn                       ;;
2057                 -pds=*)         echo $flag                        ;;
2058             esac
2059         done
2060     }
2061 elif $cc -v 2>&1 | grep -q clang; then
2062     cc_type=clang
2063     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2064         cc_version=__clang_version__ || cc_version=__VERSION__
2065     cc_ident=$($cc --version | head -n1)
2066     CC_DEPFLAGS='-MMD'
2067     AS_DEPFLAGS='-MMD'
2068     speed_cflags='-O3'
2069     size_cflags='-Os'
2070 elif $cc -V 2>&1 | grep -q Sun; then
2071     cc_type=suncc
2072     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2073     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2074     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2075     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2076     add_ldflags -xc99
2077     speed_cflags='-O5'
2078     size_cflags='-O5 -xspace'
2079     filter_cflags=suncc_flags
2080     suncc_flags(){
2081         for flag; do
2082             case $flag in
2083                 -march=*|-mcpu=*)
2084                     case "${flag#*=}" in
2085                         native)                   echo -xtarget=native       ;;
2086                         v9|niagara)               echo -xarch=sparc          ;;
2087                         ultrasparc)               echo -xarch=sparcvis       ;;
2088                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2089                         i586|pentium)             echo -xchip=pentium        ;;
2090                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2091                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2092                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2093                         pentium4*)          echo -xtarget=pentium4           ;;
2094                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2095                         *-sse3)             echo -xarch=sse3                 ;;
2096                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2097                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2098                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2099                         k8|opteron|athlon64|athlon-fx)
2100                                                   echo -xarch=sse2a          ;;
2101                         athlon*)                  echo -xarch=pentium_proa   ;;
2102                     esac
2103                     ;;
2104                 -std=c99)             echo -xc99              ;;
2105                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2106                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2107                 -W*,*)                echo $flag              ;;
2108                 -f*-*|-W*)                                    ;;
2109                 *)                    echo $flag              ;;
2110             esac
2111         done
2112     }
2113 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2114     cc_type=pathscale
2115     cc_version=__PATHSCALE__
2116     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2117     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2118     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2119     speed_cflags='-O2'
2120     size_cflags='-Os'
2121     filter_cflags='filter_out -Wdisabled-optimization'
2122 elif $cc -v 2>&1 | grep -q Open64; then
2123     cc_type=open64
2124     cc_version=__OPEN64__
2125     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2126     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2127     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2128     speed_cflags='-O2'
2129     size_cflags='-Os'
2130     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2131 fi
2132
2133 test -n "$cc_type" && enable $cc_type ||
2134     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2135
2136 : ${as_default:=$cc}
2137 : ${dep_cc_default:=$cc}
2138 : ${ld_default:=$cc}
2139 set_default ar as dep_cc ld
2140
2141 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2142 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2143
2144 add_cflags $extra_cflags
2145 add_asflags $extra_cflags
2146
2147 if test -n "$sysroot"; then
2148     case "$cc_type" in
2149         gcc|llvm_gcc|clang)
2150             add_cppflags --sysroot="$sysroot"
2151             add_ldflags --sysroot="$sysroot"
2152         ;;
2153         tms470)
2154             add_cppflags -I"$sysinclude"
2155             add_ldflags  --sysroot="$sysroot"
2156         ;;
2157     esac
2158 fi
2159
2160 if test "$cpu" = host; then
2161     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2162
2163     case "$cc_type" in
2164         gcc|llvm_gcc)
2165             check_native(){
2166                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2167                 sed -n "/cc1.*$1=/{
2168                             s/.*$1=\\([^ ]*\\).*/\\1/
2169                             p
2170                             q
2171                         }" $TMPE
2172             }
2173             cpu=$(check_native -march || check_native -mcpu)
2174         ;;
2175     esac
2176
2177     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2178 fi
2179
2180 # Deal with common $arch aliases
2181 case "$arch" in
2182     arm*)
2183         arch="arm"
2184     ;;
2185     mips|mipsel|IP*)
2186         arch="mips"
2187     ;;
2188     mips64*)
2189         arch="mips"
2190         subarch="mips64"
2191     ;;
2192     parisc|hppa)
2193         arch="parisc"
2194     ;;
2195     parisc64|hppa64)
2196         arch="parisc"
2197         subarch="parisc64"
2198     ;;
2199     "Power Macintosh"|ppc|powerpc)
2200         arch="ppc"
2201     ;;
2202     ppc64|powerpc64)
2203         arch="ppc"
2204         subarch="ppc64"
2205     ;;
2206     s390|s390x)
2207         arch="s390"
2208     ;;
2209     sh4|sh)
2210         arch="sh4"
2211     ;;
2212     sun4u|sparc64)
2213         arch="sparc"
2214         subarch="sparc64"
2215     ;;
2216     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2217         arch="x86"
2218     ;;
2219 esac
2220
2221 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2222 enable $arch
2223
2224 # Add processor-specific flags
2225 if test "$cpu" = generic; then
2226     : do nothing
2227 elif enabled ppc; then
2228
2229     case $(tolower $cpu) in
2230         601|ppc601|powerpc601)
2231             cpuflags="-mcpu=601"
2232             disable altivec
2233         ;;
2234         603*|ppc603*|powerpc603*)
2235             cpuflags="-mcpu=603"
2236             disable altivec
2237         ;;
2238         604*|ppc604*|powerpc604*)
2239             cpuflags="-mcpu=604"
2240             disable altivec
2241         ;;
2242         g3|75*|ppc75*|powerpc75*)
2243             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2244             disable altivec
2245         ;;
2246         g4|745*|ppc745*|powerpc745*)
2247             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2248         ;;
2249         74*|ppc74*|powerpc74*)
2250             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2251         ;;
2252         g5|970|ppc970|powerpc970|power4*)
2253             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2254         ;;
2255         cell)
2256             cpuflags="-mcpu=cell"
2257             enable ldbrx
2258         ;;
2259         e500v2)
2260             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2261             disable altivec
2262         ;;
2263         e500)
2264             cpuflags="-mcpu=8540 -mhard-float"
2265             disable altivec
2266         ;;
2267     esac
2268
2269 elif enabled x86; then
2270
2271     case $cpu in
2272         i[345]86|pentium)
2273             cpuflags="-march=$cpu"
2274             disable mmx
2275         ;;
2276         # targets that do NOT support conditional mov (cmov)
2277         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2278             cpuflags="-march=$cpu"
2279             disable cmov
2280         ;;
2281         # targets that do support conditional mov (cmov)
2282         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2283             cpuflags="-march=$cpu"
2284             enable cmov
2285             enable fast_cmov
2286         ;;
2287         # targets that do support conditional mov but on which it's slow
2288         pentium4|pentium4m|prescott|nocona)
2289             cpuflags="-march=$cpu"
2290             enable cmov
2291             disable fast_cmov
2292         ;;
2293     esac
2294
2295 elif enabled sparc; then
2296
2297     case $cpu in
2298         niagara)
2299             cpuflags="-mcpu=$cpu"
2300             disable vis
2301         ;;
2302         sparc64)
2303             cpuflags="-mcpu=v9"
2304         ;;
2305     esac
2306
2307 elif enabled arm; then
2308
2309     case $cpu in
2310         armv*)
2311             cpuflags="-march=$cpu"
2312             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2313         ;;
2314         *)
2315             cpuflags="-mcpu=$cpu"
2316             case $cpu in
2317                 cortex-a*)                               subarch=armv7a  ;;
2318                 cortex-r*)                               subarch=armv7r  ;;
2319                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2320                 arm11*)                                  subarch=armv6   ;;
2321                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2322                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2323             esac
2324         ;;
2325     esac
2326
2327 elif enabled alpha; then
2328
2329     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2330
2331 elif enabled bfin; then
2332
2333     cpuflags="-mcpu=$cpu"
2334
2335 elif enabled mips; then
2336
2337     cpuflags="-march=$cpu"
2338
2339 elif enabled avr32; then
2340
2341     case $cpu in
2342         ap7[02]0[0-2])
2343             subarch="avr32_ap"
2344             cpuflags="-mpart=$cpu"
2345         ;;
2346         ap)
2347             subarch="avr32_ap"
2348             cpuflags="-march=$cpu"
2349         ;;
2350         uc3[ab]*)
2351             subarch="avr32_uc"
2352             cpuflags="-mcpu=$cpu"
2353         ;;
2354         uc)
2355             subarch="avr32_uc"
2356             cpuflags="-march=$cpu"
2357         ;;
2358     esac
2359
2360 fi
2361
2362 add_cflags $cpuflags
2363 add_asflags $cpuflags
2364
2365 # compiler sanity check
2366 check_exec <<EOF
2367 int main(void){ return 0; }
2368 EOF
2369 if test "$?" != 0; then
2370     echo "$cc is unable to create an executable file."
2371     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2372         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2373         echo "Only do this if you know what cross compiling means."
2374     fi
2375     die "C compiler test failed."
2376 fi
2377
2378 add_cppflags -D_ISOC99_SOURCE
2379 check_cflags -std=c99
2380 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2381 #include <stdlib.h>
2382 EOF
2383 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2384 #include <stdlib.h>
2385 EOF
2386
2387 check_host_cflags -std=c99
2388 check_host_cflags -Wall
2389
2390 case "$arch" in
2391     alpha|ia64|mips|parisc|sparc)
2392         spic=$shared
2393     ;;
2394     x86)
2395         subarch="x86_32"
2396         check_cc <<EOF && subarch="x86_64"
2397         int test[(int)sizeof(char*) - 7];
2398 EOF
2399         if test "$subarch" = "x86_64"; then
2400             spic=$shared
2401         fi
2402     ;;
2403 esac
2404
2405 enable $subarch
2406 enabled spic && enable pic
2407
2408 # OS specific
2409 case $target_os in
2410     haiku)
2411         prefix_default="/boot/common"
2412         network_extralibs="-lnetwork"
2413         host_libs=
2414         ;;
2415     sunos)
2416         AVSERVERLDFLAGS=""
2417         SHFLAGS='-shared -Wl,-h,$$(@F)'
2418         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2419         network_extralibs="-lsocket -lnsl"
2420         add_cppflags -D__EXTENSIONS__
2421         # When using suncc to build, the Solaris linker will mark
2422         # an executable with each instruction set encountered by
2423         # the Solaris assembler.  As our libraries contain their own
2424         # guards for processor-specific code, instead suppress
2425         # generation of the HWCAPS ELF section on Solaris x86 only.
2426         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2427         nm_opts='-P -g'
2428         ;;
2429     netbsd)
2430         disable symver
2431         oss_indev_extralibs="-lossaudio"
2432         oss_outdev_extralibs="-lossaudio"
2433         ;;
2434     openbsd)
2435         enable malloc_aligned
2436         # On OpenBSD 4.5. the compiler does not use PIC unless
2437         # explicitly using -fPIC. Libav builds fine without PIC,
2438         # however the generated executable will not do anything
2439         # (simply quits with exit-code 1, no crash, no output).
2440         # Thus explicitly enable PIC here.
2441         enable pic
2442         disable symver
2443         SHFLAGS='-shared'
2444         oss_indev_extralibs="-lossaudio"
2445         oss_outdev_extralibs="-lossaudio"
2446         ;;
2447     dragonfly)
2448         enable malloc_aligned
2449         disable symver
2450         ;;
2451     freebsd)
2452         enable malloc_aligned
2453         ;;
2454     bsd/os)
2455         add_extralibs -lpoll -lgnugetopt
2456         ;;
2457     darwin)
2458         enable malloc_aligned
2459         gas="gas-preprocessor.pl $cc"
2460         enabled ppc && add_asflags -force_cpusubtype_ALL
2461         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2462         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2463         add_ldflags -Wl,-dynamic,-search_paths_first
2464         SLIBSUF=".dylib"
2465         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2466         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2467         AVSERVERLDFLAGS=-Wl,-bind_at_load
2468         objformat="macho"
2469         enabled x86_64 && objformat="macho64"
2470         enabled_any pic shared ||
2471             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2472         ;;
2473     mingw32*)
2474         if test $target_os = "mingw32ce"; then
2475             disable network
2476         else
2477             target_os=mingw32
2478         fi
2479         LIBTARGET=i386
2480         if enabled x86_64; then
2481             enable malloc_aligned
2482             LIBTARGET="i386:x86-64"
2483         elif enabled arm; then
2484             LIBTARGET=arm-wince
2485         fi
2486         shlibdir_default="$bindir_default"
2487         SLIBPREF=""
2488         SLIBSUF=".dll"
2489         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2490         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2491         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2492         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2493         SLIB_INSTALL_LINKS=
2494         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2495         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2496         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'
2497         objformat="win32"
2498         dlltool="${cross_prefix}dlltool"
2499         enable dos_paths
2500         check_cflags -fno-common
2501         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2502                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2503                 die "ERROR: MinGW runtime version must be >= 3.15."
2504         add_cppflags -U__STRICT_ANSI__
2505         ;;
2506     cygwin*)
2507         target_os=cygwin
2508         shlibdir_default="$bindir_default"
2509         SLIBPREF="cyg"
2510         SLIBSUF=".dll"
2511         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2512         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2513         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2514         objformat="win32"
2515         enable dos_paths
2516         check_cflags -fno-common
2517         add_cppflags -U__STRICT_ANSI__
2518         ;;
2519     *-dos|freedos|opendos)
2520         network_extralibs="-lsocket"
2521         objformat="coff"
2522         enable dos_paths
2523         add_cppflags -U__STRICT_ANSI__
2524         ;;
2525     linux)
2526         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2527         enable dv1394
2528         ;;
2529     irix*)
2530         target_os=irix
2531         ranlib="echo ignoring ranlib"
2532         ;;
2533     os/2*)
2534         ln_s="cp -f"
2535         objformat="aout"
2536         add_cppflags -D_GNU_SOURCE
2537         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2538         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2539         AVSERVERLDFLAGS=""
2540         LIBSUF="_s.a"
2541         SLIBPREF=""
2542         SLIBSUF=".dll"
2543         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2544         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2545         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2546           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2547           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2548           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2549           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2550           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2551         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2552           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2553         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2554         enable dos_paths
2555         ;;
2556     gnu/kfreebsd)
2557         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2558         ;;
2559     gnu)
2560         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2561         ;;
2562     qnx)
2563         add_cppflags -D_QNX_SOURCE
2564         network_extralibs="-lsocket"
2565         ;;
2566     symbian)
2567         SLIBSUF=".dll"
2568         enable dos_paths
2569         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2570         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2571         add_ldflags -Wl,--target1-abs,--no-undefined \
2572                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2573                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2574         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2575                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2576                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2577         ;;
2578     none)
2579         ;;
2580     *)
2581         die "Unknown OS '$target_os'."
2582         ;;
2583 esac
2584
2585 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2586
2587 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2588
2589 set_default $PATHS_LIST
2590
2591 # we need to build at least one lib type
2592 if ! enabled_any static shared; then
2593     cat <<EOF
2594 At least one library type must be built.
2595 Specify --enable-static to build the static libraries or --enable-shared to
2596 build the shared libraries as well. To only build the shared libraries specify
2597 --disable-static in addition to --enable-shared.
2598 EOF
2599     exit 1;
2600 fi
2601
2602 die_license_disabled() {
2603     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2604 }
2605
2606 die_license_disabled gpl libcdio
2607 die_license_disabled gpl libx264
2608 die_license_disabled gpl libxavs
2609 die_license_disabled gpl libxvid
2610 die_license_disabled gpl x11grab
2611
2612 die_license_disabled nonfree libfaac
2613 die_license_disabled nonfree openssl
2614
2615 die_license_disabled version3 libopencore_amrnb
2616 die_license_disabled version3 libopencore_amrwb
2617 die_license_disabled version3 libvo_aacenc
2618 die_license_disabled version3 libvo_amrwbenc
2619
2620 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2621
2622 disabled optimizations || check_cflags -fomit-frame-pointer
2623
2624 enable_pic() {
2625     enable pic
2626     add_cppflags -DPIC
2627     add_cflags   -fPIC
2628     add_asflags  -fPIC
2629 }
2630
2631 enabled pic && enable_pic
2632
2633 check_cc <<EOF || die "Symbol mangling check failed."
2634 int ff_extern;
2635 EOF
2636 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2637 extern_prefix=${sym%%ff_extern*}
2638
2639 check_cc <<EOF && enable inline_asm
2640 void foo(void) { __asm__ volatile ("" ::); }
2641 EOF
2642
2643 _restrict=
2644 for restrict_keyword in restrict __restrict__ __restrict; do
2645     check_cc <<EOF && _restrict=$restrict_keyword && break
2646 void foo(char * $restrict_keyword p);
2647 EOF
2648 done
2649
2650 check_cc <<EOF && enable attribute_packed
2651 struct { int x; } __attribute__((packed)) x;
2652 EOF
2653
2654 check_cc <<EOF && enable attribute_may_alias
2655 union { int x; } __attribute__((may_alias)) x;
2656 EOF
2657
2658 check_cc <<EOF || die "endian test failed"
2659 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2660 EOF
2661 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2662
2663 if enabled alpha; then
2664
2665     check_cflags -mieee
2666
2667 elif enabled arm; then
2668
2669     enabled thumb && check_cflags -mthumb || check_cflags -marm
2670     nogas=die
2671
2672     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2673         enable vfp_args
2674     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2675         case "${cross_prefix:-$cc}" in
2676             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2677             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2678 __asm__ (".eabi_attribute 28, 1");
2679 int main(void) { return 0; }
2680 EOF
2681         esac
2682         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2683     fi
2684
2685     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2686     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2687     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2688     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2689     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2690     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2691     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2692
2693     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2694
2695     enabled_all armv6t2 shared !pic && enable_pic
2696
2697 elif enabled mips; then
2698
2699     check_asm loongson '"dmult.g $1, $2, $3"'
2700     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2701
2702 elif enabled ppc; then
2703
2704     enable local_aligned_8 local_aligned_16
2705
2706     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2707     check_asm ibm_asm   '"add 0, 0, 0"'
2708     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2709     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2710
2711     # AltiVec flags: The FSF version of GCC differs from the Apple version
2712     if enabled altivec; then
2713         nogas=warn
2714         check_cflags -maltivec -mabi=altivec &&
2715         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2716         check_cflags -faltivec
2717
2718         # check if our compiler supports Motorola AltiVec C API
2719         check_cc <<EOF || disable altivec
2720 $inc_altivec_h
2721 int main(void) {
2722     vector signed int v1, v2, v3;
2723     v1 = vec_add(v2,v3);
2724     return 0;
2725 }
2726 EOF
2727
2728         # check if our compiler supports braces for vector declarations
2729         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2730 $inc_altivec_h
2731 int main (void) { (vector int) {1}; return 0; }
2732 EOF
2733     fi
2734
2735 elif enabled sparc; then
2736
2737     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2738         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2739
2740 elif enabled x86; then
2741
2742     enable local_aligned_8 local_aligned_16
2743
2744     # check whether EBP is available on x86
2745     # As 'i' is stored on the stack, this program will crash
2746     # if the base pointer is used to access it because the
2747     # base pointer is cleared in the inline assembly code.
2748     check_exec_crash <<EOF && enable ebp_available
2749     volatile int i=0;
2750     __asm__ volatile (
2751         "xorl %%ebp, %%ebp"
2752     ::: "%ebp");
2753     return i;
2754 EOF
2755
2756     # check whether EBX is available on x86
2757     check_asm ebx_available '""::"b"(0)' &&
2758         check_asm ebx_available '"":::"%ebx"'
2759
2760     # check whether xmm clobbers are supported
2761     check_asm xmm_clobbers '"":::"%xmm0"'
2762
2763     # check whether binutils is new enough to compile SSSE3/MMX2
2764     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2765     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2766
2767     if ! disabled_any asm mmx yasm; then
2768         if check_cmd $yasmexe --version; then
2769             enabled x86_64 && yasm_extra="-m amd64"
2770             yasm_debug="-g dwarf2"
2771         elif check_cmd nasm -v; then
2772             yasmexe=nasm
2773             yasm_debug="-g -F dwarf"
2774             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2775         fi
2776
2777         YASMFLAGS="-f $objformat $yasm_extra"
2778         enabled pic               && append YASMFLAGS "-DPIC"
2779         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2780         case "$objformat" in
2781             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2782         esac
2783
2784         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2785             die "yasm not found, use --disable-yasm for a crippled build"
2786         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2787     fi
2788
2789     case "$cpu" in
2790         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2791             disable fast_clz
2792         ;;
2793     esac
2794
2795 fi
2796
2797 if enabled asm; then
2798     as=${gas:=$as}
2799     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2800         $nogas "GNU assembler not found, install gas-preprocessor"
2801 fi
2802
2803 check_ldflags -Wl,--as-needed
2804
2805 if check_func dlopen; then
2806     ldl=
2807 elif check_func dlopen -ldl; then
2808     ldl=-ldl
2809 fi
2810
2811 if enabled network; then
2812     check_type "sys/types.h sys/socket.h" socklen_t
2813     check_type netdb.h "struct addrinfo"
2814     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2815     check_type netinet/in.h "struct sockaddr_in6"
2816     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2817     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2818     # Prefer arpa/inet.h over winsock2
2819     if check_header arpa/inet.h ; then
2820         check_func closesocket
2821     elif check_header winsock2.h ; then
2822         check_func_headers winsock2.h closesocket -lws2 && \
2823             network_extralibs="-lws2" || \
2824         { check_func_headers winsock2.h closesocket -lws2_32 && \
2825             network_extralibs="-lws2_32"; }
2826         check_type ws2tcpip.h socklen_t
2827         check_type ws2tcpip.h "struct addrinfo"
2828         check_type ws2tcpip.h "struct ipv6_mreq"
2829         check_type ws2tcpip.h "struct sockaddr_in6"
2830         check_type ws2tcpip.h "struct sockaddr_storage"
2831         check_struct winsock2.h "struct sockaddr" sa_len
2832     else
2833         disable network
2834     fi
2835 fi
2836
2837 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2838 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2839
2840 check_func  fcntl
2841 check_func  fork
2842 check_func  getaddrinfo $network_extralibs
2843 check_func  gethrtime
2844 check_func  getrusage
2845 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2846 check_func  inet_aton $network_extralibs
2847 check_func  isatty
2848 check_func  localtime_r
2849 check_func  ${malloc_prefix}memalign            && enable memalign
2850 check_func  mkstemp
2851 check_func  mmap
2852 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2853 check_func  setrlimit
2854 check_func  strerror_r
2855 check_func  strptime
2856 check_func  strtok_r
2857 check_func  sched_getaffinity
2858 check_func  sysconf
2859 check_func  sysctl
2860 check_func_headers io.h setmode
2861 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2862 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2863 check_func_headers windows.h GetProcessAffinityMask
2864 check_func_headers windows.h GetProcessTimes
2865 check_func_headers windows.h MapViewOfFile
2866 check_func_headers windows.h VirtualAlloc
2867
2868 check_header dlfcn.h
2869 check_header dxva2api.h
2870 check_header malloc.h
2871 check_header poll.h
2872 check_header sys/mman.h
2873 check_header sys/param.h
2874 check_header sys/resource.h
2875 check_header sys/select.h
2876 check_header vdpau/vdpau.h
2877 check_header vdpau/vdpau_x11.h
2878 check_header X11/extensions/XvMClib.h
2879
2880 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2881
2882 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2883 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2884
2885 if ! disabled w32threads && ! enabled pthreads; then
2886     check_func _beginthreadex && enable w32threads
2887 fi
2888
2889 # check for some common methods of building with pthread support
2890 # do this before the optional library checks as some of them require pthreads
2891 if ! disabled pthreads && ! enabled w32threads; then
2892     enable pthreads
2893     if check_func pthread_create; then
2894         :
2895     elif check_func pthread_create -pthread; then
2896         add_cflags -pthread
2897         add_extralibs -pthread
2898     elif check_func pthread_create -pthreads; then
2899         add_cflags -pthreads
2900         add_extralibs -pthreads
2901     elif check_func pthread_create -lpthreadGC2; then
2902         add_extralibs -lpthreadGC2
2903     elif ! check_lib pthread.h pthread_create -lpthread; then
2904         disable pthreads
2905     fi
2906 fi
2907
2908 for thread in $THREADS_LIST; do
2909     if enabled $thread; then
2910         test -n "$thread_type" &&
2911             die "ERROR: Only one thread type must be selected." ||
2912             thread_type="$thread"
2913     fi
2914 done
2915
2916 check_lib math.h sin -lm && LIBM="-lm"
2917 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2918
2919 check_mathfunc exp2
2920 check_mathfunc exp2f
2921 check_mathfunc llrint
2922 check_mathfunc llrintf
2923 check_mathfunc log2
2924 check_mathfunc log2f
2925 check_mathfunc lrint
2926 check_mathfunc lrintf
2927 check_mathfunc round
2928 check_mathfunc roundf
2929 check_mathfunc trunc
2930 check_mathfunc truncf
2931
2932 # these are off by default, so fail if requested and not available
2933 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2934 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2935 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2936 enabled libdirac   && require_pkg_config dirac                          \
2937     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2938     "dirac_decoder_init dirac_encoder_init"
2939 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2940 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2941 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2942 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2943 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2944 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2945 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2946 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2947 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2948 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2949 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2950 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2951 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2952 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2953 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2954 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2955 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2956 enabled libvpx     && {
2957     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2958                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2959     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2960                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2961 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2962                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2963                         die "ERROR: libx264 version must be >= 0.118."; }
2964 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2965 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2966 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2967 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2968                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2969                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2970                         die "ERROR: openssl not found"; }
2971
2972 # libdc1394 check
2973 if enabled libdc1394; then
2974     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2975         enable libdc1394_2; } ||
2976     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2977         enable libdc1394_1; } ||
2978     die "ERROR: No version of libdc1394 found "
2979 fi
2980
2981 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2982     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2983     enable sdl &&
2984     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2985 fi
2986
2987 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2988
2989 check_header linux/fb.h
2990 check_header linux/videodev2.h
2991 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2992
2993 check_header sys/videoio.h
2994
2995 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2996 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2997 # w32api 3.12 had it defined wrong
2998 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2999
3000 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3001 { check_header dev/bktr/ioctl_meteor.h &&
3002   check_header dev/bktr/ioctl_bt848.h; } ||
3003 { check_header machine/ioctl_meteor.h &&
3004   check_header machine/ioctl_bt848.h; } ||
3005 { check_header dev/video/meteor/ioctl_meteor.h &&
3006   check_header dev/video/bktr/ioctl_bt848.h; } ||
3007 check_header dev/ic/bt8xx.h
3008
3009 check_header sndio.h
3010 check_header sys/soundcard.h
3011 check_header soundcard.h
3012
3013 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3014
3015 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3016
3017 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3018
3019 enabled libcdio &&
3020     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3021
3022 enabled x11grab                         &&
3023 check_header X11/Xlib.h                 &&
3024 check_header X11/extensions/XShm.h      &&
3025 check_header X11/extensions/Xfixes.h    &&
3026 check_func XOpenDisplay -lX11           &&
3027 check_func XShmCreateImage -lX11 -lXext &&
3028 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3029
3030 # check for VDA header
3031 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3032     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3033 fi
3034
3035 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3036 check_cpp_condition \
3037     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3038     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3039       disable vdpau; }
3040 fi
3041
3042 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3043
3044 # add some useful compiler flags if supported
3045 check_cflags -Wdeclaration-after-statement
3046 check_cflags -Wall
3047 check_cflags -Wno-parentheses
3048 check_cflags -Wno-switch
3049 check_cflags -Wno-format-zero-length
3050 check_cflags -Wdisabled-optimization
3051 check_cflags -Wpointer-arith
3052 check_cflags -Wredundant-decls
3053 check_cflags -Wno-pointer-sign
3054 check_cflags -Wcast-qual
3055 check_cflags -Wwrite-strings
3056 check_cflags -Wtype-limits
3057 check_cflags -Wundef
3058 check_cflags -Wmissing-prototypes
3059 check_cflags -Wstrict-prototypes
3060 enabled extra_warnings && check_cflags -Winline
3061
3062 # add some linker flags
3063 check_ldflags -Wl,--warn-common
3064 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3065 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3066
3067 echo "X{};" > $TMPV
3068 if test_ldflags -Wl,--version-script,$TMPV; then
3069     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3070     check_cc <<EOF && enable symver_asm_label
3071 void ff_foo(void) __asm__ ("av_foo@VERSION");
3072 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3073 EOF
3074     check_cc <<EOF && enable symver_gnu_asm
3075 __asm__(".symver ff_foo,av_foo@VERSION");
3076 void ff_foo(void) {}
3077 EOF
3078 fi
3079
3080 if [ -n "$optflags" ]; then
3081     add_cflags $optflags
3082 elif enabled small; then
3083     add_cflags $size_cflags
3084 elif enabled optimizations; then
3085     add_cflags $speed_cflags
3086 else
3087     add_cflags $noopt_cflags
3088 fi
3089 check_cflags -fno-math-errno
3090 check_cflags -fno-signed-zeros
3091
3092 if enabled icc; then
3093     # Just warnings, no remarks
3094     check_cflags -w1
3095     # -wd: Disable following warnings
3096     # 144, 167, 556: -Wno-pointer-sign
3097     # 1292: attribute "foo" ignored
3098     # 10006: ignoring unknown option -fno-signed-zeros
3099     # 10148: ignoring unknown option -Wno-parentheses
3100     # 10156: ignoring option '-W'; no argument required
3101     check_cflags -wd144,167,556,1292,10006,10148,10156
3102     # 11030: Warning unknown option --as-needed
3103     # 10156: ignoring option '-export'; no argument required
3104     check_ldflags -wd10156,11030
3105     # Allow to compile with optimizations
3106     check_ldflags -march=$cpu
3107     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3108     enable ebp_available
3109     if enabled x86_32; then
3110         test ${icc_version%%.*} -ge 11 && \
3111             check_cflags -falign-stack=maintain-16-byte || \
3112             disable aligned_stack
3113     fi
3114 elif enabled ccc; then
3115     # disable some annoying warnings
3116     add_cflags -msg_disable cvtu32to64
3117     add_cflags -msg_disable embedcomment
3118     add_cflags -msg_disable needconstext
3119     add_cflags -msg_disable nomainieee
3120     add_cflags -msg_disable ptrmismatch1
3121     add_cflags -msg_disable unreachcode
3122 elif enabled gcc; then
3123     check_cflags -fno-tree-vectorize
3124     check_cflags -Werror=implicit-function-declaration
3125     check_cflags -Werror=missing-prototypes
3126     check_cflags -Werror=declaration-after-statement
3127 elif enabled llvm_gcc; then
3128     check_cflags -mllvm -stack-alignment=16
3129 elif enabled clang; then
3130     check_cflags -mllvm -stack-alignment=16
3131     check_cflags -Qunused-arguments
3132 elif enabled armcc; then
3133     # 2523: use of inline assembler is deprecated
3134     add_cflags -W${armcc_opt},--diag_suppress=2523
3135     add_cflags -W${armcc_opt},--diag_suppress=1207
3136     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3137     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3138     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3139     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3140 elif enabled tms470; then
3141     add_cflags -pds=824 -pds=837
3142 elif enabled pathscale; then
3143     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3144 fi
3145
3146 enabled_any $THREADS_LIST      && enable threads
3147
3148 check_deps $CONFIG_LIST       \
3149            $CONFIG_EXTRA      \
3150            $HAVE_LIST         \
3151            $ALL_COMPONENTS    \
3152            $ALL_TESTS         \
3153
3154 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3155
3156 ! enabled_any memalign posix_memalign malloc_aligned &&
3157     enabled_any $need_memalign && enable memalign_hack
3158
3159 echo "install prefix            $prefix"
3160 echo "source path               $source_path"
3161 echo "C compiler                $cc"
3162 echo "ARCH                      $arch ($cpu)"
3163 if test "$build_suffix" != ""; then
3164     echo "build suffix              $build_suffix"
3165 fi
3166 if test "$extra_version" != ""; then
3167     echo "version string suffix     $extra_version"
3168 fi
3169 echo "big-endian                ${bigendian-no}"
3170 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3171 if enabled x86; then
3172     echo "${yasmexe}                      ${yasm-no}"
3173     echo "MMX enabled               ${mmx-no}"
3174     echo "MMX2 enabled              ${mmx2-no}"
3175     echo "3DNow! enabled            ${amd3dnow-no}"
3176     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3177     echo "SSE enabled               ${sse-no}"
3178     echo "SSSE3 enabled             ${ssse3-no}"
3179     echo "AVX enabled               ${avx-no}"
3180     echo "CMOV enabled              ${cmov-no}"
3181     echo "CMOV is fast              ${fast_cmov-no}"
3182     echo "EBX available             ${ebx_available-no}"
3183     echo "EBP available             ${ebp_available-no}"
3184 fi
3185 if enabled arm; then
3186     echo "ARMv5TE enabled           ${armv5te-no}"
3187     echo "ARMv6 enabled             ${armv6-no}"
3188     echo "ARMv6T2 enabled           ${armv6t2-no}"
3189     echo "ARM VFP enabled           ${armvfp-no}"
3190     echo "IWMMXT enabled            ${iwmmxt-no}"
3191     echo "NEON enabled              ${neon-no}"
3192 fi
3193 if enabled mips; then
3194     echo "MMI enabled               ${mmi-no}"
3195 fi
3196 if enabled ppc; then
3197     echo "AltiVec enabled           ${altivec-no}"
3198     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3199     echo "dcbzl available           ${dcbzl-no}"
3200 fi
3201 if enabled sparc; then
3202     echo "VIS enabled               ${vis-no}"
3203 fi
3204 echo "debug symbols             ${debug-no}"
3205 echo "optimize for size         ${small-no}"
3206 echo "optimizations             ${optimizations-no}"
3207 echo "static                    ${static-no}"
3208 echo "shared                    ${shared-no}"
3209 echo "postprocessing support    ${postproc-no}"
3210 echo "new filter support        ${avfilter-no}"
3211 echo "network support           ${network-no}"
3212 echo "threading support         ${thread_type-no}"
3213 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3214 echo "SDL support               ${sdl-no}"
3215 echo "Sun medialib support      ${mlib-no}"
3216 echo "libdxva2 enabled          ${dxva2-no}"
3217 echo "libva enabled             ${vaapi-no}"
3218 echo "libvdpau enabled          ${vdpau-no}"
3219 echo "AVISynth enabled          ${avisynth-no}"
3220 echo "frei0r enabled            ${frei0r-no}"
3221 echo "gnutls enabled            ${gnutls-no}"
3222 echo "libcdio support           ${libcdio-no}"
3223 echo "libdc1394 support         ${libdc1394-no}"
3224 echo "libdirac enabled          ${libdirac-no}"
3225 echo "libfaac enabled           ${libfaac-no}"
3226 echo "libgsm enabled            ${libgsm-no}"
3227 echo "libmp3lame enabled        ${libmp3lame-no}"
3228 echo "libnut enabled            ${libnut-no}"
3229 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3230 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3231 echo "libopencv support         ${libopencv-no}"
3232 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3233 echo "libpulse enabled          ${libpulse-no}"
3234 echo "librtmp enabled           ${librtmp-no}"
3235 echo "libschroedinger enabled   ${libschroedinger-no}"
3236 echo "libspeex enabled          ${libspeex-no}"
3237 echo "libtheora enabled         ${libtheora-no}"
3238 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3239 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3240 echo "libvorbis enabled         ${libvorbis-no}"
3241 echo "libvpx enabled            ${libvpx-no}"
3242 echo "libx264 enabled           ${libx264-no}"
3243 echo "libxavs enabled           ${libxavs-no}"
3244 echo "libxvid enabled           ${libxvid-no}"
3245 echo "openssl enabled           ${openssl-no}"
3246 echo "zlib enabled              ${zlib-no}"
3247 echo "bzlib enabled             ${bzlib-no}"
3248 echo
3249
3250 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3251     echo "Enabled ${type}s:"
3252     eval list=\$$(toupper $type)_LIST
3253     print_enabled '_*' $list | sort | pr -r -3 -t
3254     echo
3255 done
3256
3257 license="LGPL version 2.1 or later"
3258 if enabled nonfree; then
3259     license="nonfree and unredistributable"
3260 elif enabled gplv3; then
3261     license="GPL version 3 or later"
3262 elif enabled lgplv3; then
3263     license="LGPL version 3 or later"
3264 elif enabled gpl; then
3265     license="GPL version 2 or later"
3266 fi
3267
3268 echo "License: $license"
3269
3270 echo "Creating config.mak and config.h..."
3271
3272 test -e Makefile || $ln_s "$source_path/Makefile" .
3273
3274 config_files="$TMPH config.mak"
3275
3276 cat > config.mak <<EOF
3277 # Automatically generated by configure - do not modify!
3278 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3279 prefix=$prefix
3280 LIBDIR=\$(DESTDIR)$libdir
3281 SHLIBDIR=\$(DESTDIR)$shlibdir
3282 INCDIR=\$(DESTDIR)$incdir
3283 BINDIR=\$(DESTDIR)$bindir
3284 DATADIR=\$(DESTDIR)$datadir
3285 MANDIR=\$(DESTDIR)$mandir
3286 SRC_PATH=$source_path
3287 CC_IDENT=$cc_ident
3288 ARCH=$arch
3289 CC=$cc
3290 AS=$as
3291 LD=$ld
3292 DEPCC=$dep_cc
3293 YASM=$yasmexe
3294 YASMDEP=$yasmexe
3295 AR=$ar
3296 RANLIB=$ranlib
3297 LN_S=$ln_s
3298 CPPFLAGS=$CPPFLAGS
3299 CFLAGS=$CFLAGS
3300 ASFLAGS=$ASFLAGS
3301 AS_O=$CC_O
3302 CC_O=$CC_O
3303 DLLTOOL=$dlltool
3304 LDFLAGS=$LDFLAGS
3305 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3306 SHFLAGS=$SHFLAGS
3307 YASMFLAGS=$YASMFLAGS
3308 BUILDSUF=$build_suffix
3309 FULLNAME=$FULLNAME
3310 LIBPREF=$LIBPREF
3311 LIBSUF=$LIBSUF
3312 LIBNAME=$LIBNAME
3313 SLIBPREF=$SLIBPREF
3314 SLIBSUF=$SLIBSUF
3315 EXESUF=$EXESUF
3316 EXTRA_VERSION=$extra_version
3317 DEPFLAGS=$DEPFLAGS
3318 CCDEP=$CCDEP
3319 ASDEP=$ASDEP
3320 CC_DEPFLAGS=$CC_DEPFLAGS
3321 AS_DEPFLAGS=$AS_DEPFLAGS
3322 HOSTCC=$host_cc
3323 HOSTCFLAGS=$host_cflags
3324 HOSTEXESUF=$HOSTEXESUF
3325 HOSTLDFLAGS=$host_ldflags
3326 HOSTLIBS=$host_libs
3327 TARGET_EXEC=$target_exec
3328 TARGET_PATH=$target_path
3329 SDL_LIBS=$sdl_libs
3330 SDL_CFLAGS=$sdl_cflags
3331 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3332 EXTRALIBS=$extralibs
3333 INSTALL=install
3334 LIBTARGET=${LIBTARGET}
3335 SLIBNAME=${SLIBNAME}
3336 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3337 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3338 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3339 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3340 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3341 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3342 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3343 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3344 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3345 EOF
3346
3347 get_version(){
3348     name=$1
3349     file=$source_path/$2
3350     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3351     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3352     lcname=$(tolower $name)
3353     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3354     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3355 }
3356
3357 get_version LIBAVCODEC  libavcodec/version.h
3358 get_version LIBAVDEVICE libavdevice/avdevice.h
3359 get_version LIBAVFILTER libavfilter/version.h
3360 get_version LIBAVFORMAT libavformat/version.h
3361 get_version LIBAVUTIL   libavutil/avutil.h
3362 get_version LIBPOSTPROC libpostproc/postprocess.h
3363 get_version LIBSWSCALE  libswscale/swscale.h
3364
3365 cat > $TMPH <<EOF
3366 /* Automatically generated by configure - do not modify! */
3367 #ifndef LIBAV_CONFIG_H
3368 #define LIBAV_CONFIG_H
3369 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3370 #define LIBAV_LICENSE "$(c_escape $license)"
3371 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3372 #define CC_TYPE "$cc_type"
3373 #define CC_VERSION $cc_version
3374 #define restrict $_restrict
3375 #define EXTERN_PREFIX "${extern_prefix}"
3376 #define EXTERN_ASM ${extern_prefix}
3377 #define SLIBSUF "$SLIBSUF"
3378 EOF
3379
3380 test -n "$malloc_prefix" &&
3381     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3382
3383 if enabled small || disabled optimizations; then
3384     echo "#undef  av_always_inline"  >> $TMPH
3385     if enabled small; then
3386         echo "#define av_always_inline inline"  >> $TMPH
3387     else
3388         echo "#define av_always_inline av_unused"  >> $TMPH
3389     fi
3390 fi
3391
3392 if enabled yasm; then
3393     append config_files $TMPASM
3394     printf '' >$TMPASM
3395 fi
3396
3397 print_config ARCH_   "$config_files" $ARCH_LIST
3398 print_config HAVE_   "$config_files" $HAVE_LIST
3399 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3400                                      $CONFIG_EXTRA      \
3401                                      $ALL_COMPONENTS    \
3402
3403 cat >>config.mak <<EOF
3404 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3405 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3406 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3407 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3408 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3409 EOF
3410
3411 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3412
3413 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3414 cp_if_changed $TMPH config.h
3415 touch .config
3416
3417 enabled yasm && cp_if_changed $TMPASM config.asm
3418
3419 cat > $TMPH <<EOF
3420 /* Generated by ffconf */
3421 #ifndef AVUTIL_AVCONFIG_H
3422 #define AVUTIL_AVCONFIG_H
3423 EOF
3424
3425 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3426
3427 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3428
3429 cp_if_changed $TMPH libavutil/avconfig.h
3430
3431 test -n "$WARNINGS" && printf "\n$WARNINGS"
3432
3433 # build pkg-config files
3434
3435 pkgconfig_generate(){
3436 name=$1
3437 shortname=${name#lib}${build_suffix}
3438 comment=$2
3439 version=$3
3440 libs=$4
3441 requires=$5
3442 enabled ${name#lib} || return 0
3443 mkdir -p $name
3444 cat <<EOF > $name/$name.pc
3445 prefix=$prefix
3446 exec_prefix=\${prefix}
3447 libdir=$libdir
3448 includedir=$incdir
3449
3450 Name: $name
3451 Description: $comment
3452 Version: $version
3453 Requires: $(enabled shared || echo $requires)
3454 Requires.private: $(enabled shared && echo $requires)
3455 Conflicts:
3456 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3457 Libs.private: $(enabled shared && echo $libs)
3458 Cflags: -I\${includedir}
3459 EOF
3460 cat <<EOF > $name/$name-uninstalled.pc
3461 prefix=
3462 exec_prefix=
3463 libdir=\${pcfiledir}
3464 includedir=${source_path}
3465
3466 Name: $name
3467 Description: $comment
3468 Version: $version
3469 Requires: $requires
3470 Conflicts:
3471 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3472 Cflags: -I\${includedir}
3473 EOF
3474 }
3475
3476 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3477 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3478 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3479 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3480 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3481 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3482 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"