hwaccel: OS X Video Decoder Acceleration (VDA) support.
[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-ffmpeg         disable ffmpeg build
84   --disable-avconv         disable avconv build
85   --disable-avplay         disable avplay build
86   --disable-avprobe        disable avprobe build
87   --disable-avserver       disable avserver build
88   --disable-avdevice       disable libavdevice build
89   --disable-avcodec        disable libavcodec build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --disable-postproc       disable libpostproc build
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --disable-w32threads     disable Win32 threads [auto]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --enable-gray            enable full grayscale support (slower color)
99   --disable-swscale-alpha  disable alpha channel support in swscale
100   --disable-fastdiv        disable table-based division
101   --enable-small           optimize for size instead of speed
102   --disable-aandct         disable AAN DCT code
103   --disable-dct            disable DCT code
104   --disable-fft            disable FFT code
105   --disable-golomb         disable Golomb code
106   --disable-huffman        disable Huffman code
107   --disable-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --enable-vaapi           enable VAAPI code
111   --enable-vda             enable VDA code
112   --enable-vdpau           enable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
117   --disable-everything     disable all components listed below
118   --disable-encoder=NAME   disable encoder NAME
119   --enable-encoder=NAME    enable encoder NAME
120   --disable-encoders       disable all encoders
121   --disable-decoder=NAME   disable decoder NAME
122   --enable-decoder=NAME    enable decoder NAME
123   --disable-decoders       disable all decoders
124   --disable-hwaccel=NAME   disable hwaccel NAME
125   --enable-hwaccel=NAME    enable hwaccel NAME
126   --disable-hwaccels       disable all hwaccels
127   --disable-muxer=NAME     disable muxer NAME
128   --enable-muxer=NAME      enable muxer NAME
129   --disable-muxers         disable all muxers
130   --disable-demuxer=NAME   disable demuxer NAME
131   --enable-demuxer=NAME    enable demuxer NAME
132   --disable-demuxers       disable all demuxers
133   --enable-parser=NAME     enable parser NAME
134   --disable-parser=NAME    disable parser NAME
135   --disable-parsers        disable all parsers
136   --enable-bsf=NAME        enable bitstream filter NAME
137   --disable-bsf=NAME       disable bitstream filter NAME
138   --disable-bsfs           disable all bitstream filters
139   --enable-protocol=NAME   enable protocol NAME
140   --disable-protocol=NAME  disable protocol NAME
141   --disable-protocols      disable all protocols
142   --disable-indev=NAME     disable input device NAME
143   --disable-outdev=NAME    disable output device NAME
144   --disable-indevs         disable input devices
145   --disable-outdevs        disable output devices
146   --disable-devices        disable all devices
147   --enable-filter=NAME     enable filter NAME
148   --disable-filter=NAME    disable filter NAME
149   --disable-filters        disable all filters
150   --list-decoders          show all available decoders
151   --list-encoders          show all available encoders
152   --list-hwaccels          show all available hardware accelerators
153   --list-muxers            show all available muxers
154   --list-demuxers          show all available demuxers
155   --list-parsers           show all available parsers
156   --list-protocols         show all available protocols
157   --list-bsfs              show all available bitstream filters
158   --list-indevs            show all available input devices
159   --list-outdevs           show all available output devices
160   --list-filters           show all available filters
161
162 External library support:
163   --enable-avisynth        enable reading of AVISynth script files [no]
164   --enable-bzlib           enable bzlib [autodetect]
165   --enable-frei0r          enable frei0r video filtering
166   --enable-gnutls          enable gnutls [no]
167   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
168   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
169   --enable-libopencv       enable video filtering via libopencv [no]
170   --enable-libcdio         enable audio CD grabbing with libcdio
171   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
172                            and libraw1394 [no]
173   --enable-libdirac        enable Dirac support via libdirac [no]
174   --enable-libfaac         enable FAAC support via libfaac [no]
175   --enable-libfreetype     enable libfreetype [no]
176   --enable-libgsm          enable GSM support via libgsm [no]
177   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
178   --enable-libnut          enable NUT (de)muxing via libnut,
179                            native (de)muxer exists [no]
180   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
181   --enable-librtmp         enable RTMP[E] support via librtmp [no]
182   --enable-libschroedinger enable Dirac support via libschroedinger [no]
183   --enable-libspeex        enable Speex support via libspeex [no]
184   --enable-libtheora       enable Theora encoding via libtheora [no]
185   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
186   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
187   --enable-libvorbis       enable Vorbis encoding via libvorbis,
188                            native implementation exists [no]
189   --enable-libvpx          enable VP8 support via libvpx [no]
190   --enable-libx264         enable H.264 encoding via x264 [no]
191   --enable-libxavs         enable AVS encoding via xavs [no]
192   --enable-libxvid         enable Xvid encoding via xvidcore,
193                            native MPEG-4/Xvid encoder exists [no]
194   --enable-mlib            enable Sun medialib [no]
195   --enable-openssl         enable openssl [no]
196   --enable-zlib            enable zlib [autodetect]
197
198 Advanced options (experts only):
199   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
200   --enable-cross-compile   assume a cross-compiler is used
201   --sysroot=PATH           root of cross-build tree
202   --sysinclude=PATH        location of cross-build system headers
203   --target-os=OS           compiler targets OS [$target_os]
204   --target-exec=CMD        command to run executables on target
205   --target-path=DIR        path to view of build directory on target
206   --nm=NM                  use nm tool
207   --ar=AR                  use archive tool AR [$ar_default]
208   --as=AS                  use assembler AS [$as_default]
209   --cc=CC                  use C compiler CC [$cc_default]
210   --ld=LD                  use linker LD
211   --host-cc=HOSTCC         use host C compiler HOSTCC
212   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
213   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
214   --host-libs=HLIBS        use libs HLIBS when linking for host
215   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
216   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
217   --extra-libs=ELIBS       add ELIBS [$ELIBS]
218   --extra-version=STRING   version string suffix []
219   --build-suffix=SUFFIX    library name suffix []
220   --arch=ARCH              select architecture [$arch]
221   --cpu=CPU                select the minimum required CPU (affects
222                            instruction selection, may crash on older CPUs)
223   --disable-asm            disable all assembler optimizations
224   --disable-altivec        disable AltiVec optimizations
225   --disable-amd3dnow       disable 3DNow! optimizations
226   --disable-amd3dnowext    disable 3DNow! extended optimizations
227   --disable-mmx            disable MMX optimizations
228   --disable-mmx2           disable MMX2 optimizations
229   --disable-sse            disable SSE optimizations
230   --disable-ssse3          disable SSSE3 optimizations
231   --disable-avx            disable AVX optimizations
232   --disable-armv5te        disable armv5te optimizations
233   --disable-armv6          disable armv6 optimizations
234   --disable-armv6t2        disable armv6t2 optimizations
235   --disable-armvfp         disable ARM VFP optimizations
236   --disable-iwmmxt         disable iwmmxt optimizations
237   --disable-mmi            disable MMI optimizations
238   --disable-neon           disable neon optimizations
239   --disable-vis            disable VIS optimizations
240   --disable-yasm           disable use of yasm assembler
241   --enable-pic             build position-independent code
242   --malloc-prefix=PFX      prefix malloc and related names with PFX
243   --enable-sram            allow use of on-chip SRAM
244   --disable-symver         disable symbol versioning
245   --optflags               override optimization-related compiler flags
246
247 Developer options (useful when working on Libav itself):
248   --disable-debug          disable debugging symbols
249   --enable-debug=LEVEL     set the debug level [$debuglevel]
250   --disable-optimizations  disable compiler optimizations
251   --enable-extra-warnings  enable more compiler warnings
252   --samples=PATH           location of test samples for FATE, if not set use
253                            \$FATE_SAMPLES at make invocation time.
254
255 NOTE: Object files are built at the place where configure is launched.
256 EOF
257   exit 0
258 }
259
260 quotes='""'
261
262 log(){
263     echo "$@" >> $logfile
264 }
265
266 log_file(){
267     log BEGIN $1
268     pr -n -t $1 >> $logfile
269     log END $1
270 }
271
272 echolog(){
273     log "$@"
274     echo "$@"
275 }
276
277 warn(){
278     log "WARNING: $*"
279     WARNINGS="${WARNINGS}WARNING: $*\n"
280 }
281
282 die(){
283     echolog "$@"
284     cat <<EOF
285
286 If you think configure made a mistake, make sure you are using the latest
287 version from Git.  If the latest version fails, report the problem to the
288 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
289 EOF
290     if disabled logging; then
291         cat <<EOF
292 Rerun configure with logging enabled (do not use --disable-logging), and
293 include the log this produces with your report.
294 EOF
295     else
296 cat <<EOF
297 Include the log file "$logfile" produced by configure as this will help
298 solving the problem.
299 EOF
300     fi
301     exit 1
302 }
303
304 # Avoid locale weirdness, besides we really just want to translate ASCII.
305 toupper(){
306     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
307 }
308
309 tolower(){
310     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
311 }
312
313 c_escape(){
314     echo "$*" | sed 's/["\\]/\\\0/g'
315 }
316
317 sh_quote(){
318     v=$(echo "$1" | sed "s/'/'\\\\''/g")
319     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
320     echo "$v"
321 }
322
323 cleanws(){
324     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
325 }
326
327 filter(){
328     pat=$1
329     shift
330     for v; do
331         eval "case $v in $pat) echo $v ;; esac"
332     done
333 }
334
335 filter_out(){
336     pat=$1
337     shift
338     for v; do
339         eval "case $v in $pat) ;; *) echo $v ;; esac"
340     done
341 }
342
343 map(){
344     m=$1
345     shift
346     for v; do eval $m; done
347 }
348
349 set_all(){
350     value=$1
351     shift
352     for var in $*; do
353         eval $var=$value
354     done
355 }
356
357 set_weak(){
358     value=$1
359     shift
360     for var; do
361         eval : \${$var:=$value}
362     done
363 }
364
365 set_safe(){
366     var=$1
367     shift
368     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
369 }
370
371 get_safe(){
372     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
373 }
374
375 pushvar(){
376     for var in $*; do
377         eval level=\${${var}_level:=0}
378         eval ${var}_${level}="\$$var"
379         eval ${var}_level=$(($level+1))
380     done
381 }
382
383 popvar(){
384     for var in $*; do
385         eval level=\${${var}_level:-0}
386         test $level = 0 && continue
387         eval level=$(($level-1))
388         eval $var="\${${var}_${level}}"
389         eval ${var}_level=$level
390         eval unset ${var}_${level}
391     done
392 }
393
394 enable(){
395     set_all yes $*
396 }
397
398 disable(){
399     set_all no $*
400 }
401
402 enable_weak(){
403     set_weak yes $*
404 }
405
406 disable_weak(){
407     set_weak no $*
408 }
409
410 enable_safe(){
411     for var; do
412         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
413     done
414 }
415
416 disable_safe(){
417     for var; do
418         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
419     done
420 }
421
422 do_enable_deep(){
423     for var; do
424         enabled $var && continue
425         eval sel="\$${var}_select"
426         eval sgs="\$${var}_suggest"
427         pushvar var sgs
428         enable_deep $sel
429         popvar sgs
430         enable_deep_weak $sgs
431         popvar var
432     done
433 }
434
435 enable_deep(){
436     do_enable_deep $*
437     enable $*
438 }
439
440 enable_deep_weak(){
441     do_enable_deep $*
442     enable_weak $*
443 }
444
445 enabled(){
446     test "${1#!}" = "$1" && op== || op=!=
447     eval test "x\$${1#!}" $op "xyes"
448 }
449
450 disabled(){
451     test "${1#!}" = "$1" && op== || op=!=
452     eval test "x\$${1#!}" $op "xno"
453 }
454
455 enabled_all(){
456     for opt; do
457         enabled $opt || return 1
458     done
459 }
460
461 disabled_all(){
462     for opt; do
463         disabled $opt || return 1
464     done
465 }
466
467 enabled_any(){
468     for opt; do
469         enabled $opt && return 0
470     done
471 }
472
473 disabled_any(){
474     for opt; do
475         disabled $opt && return 0
476     done
477     return 1
478 }
479
480 set_default(){
481     for opt; do
482         eval : \${$opt:=\$${opt}_default}
483     done
484 }
485
486 is_in(){
487     value=$1
488     shift
489     for var in $*; do
490         [ $var = $value ] && return 0
491     done
492     return 1
493 }
494
495 check_deps(){
496     for cfg; do
497         cfg="${cfg#!}"
498         enabled ${cfg}_checking && die "Circular dependency for $cfg."
499         disabled ${cfg}_checking && continue
500         enable ${cfg}_checking
501
502         eval dep_all="\$${cfg}_deps"
503         eval dep_any="\$${cfg}_deps_any"
504         eval dep_sel="\$${cfg}_select"
505         eval dep_sgs="\$${cfg}_suggest"
506         eval dep_ifa="\$${cfg}_if"
507         eval dep_ifn="\$${cfg}_if_any"
508
509         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
510         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
511         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
512
513         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
514         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
515         enabled_all  $dep_all || disable $cfg
516         enabled_any  $dep_any || disable $cfg
517         disabled_any $dep_sel && disable $cfg
518
519         if enabled $cfg; then
520             eval dep_extralibs="\$${cfg}_extralibs"
521             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
522             enable_deep $dep_sel
523             enable_deep_weak $dep_sgs
524         fi
525
526         disable ${cfg}_checking
527     done
528 }
529
530 print_config_h(){
531     enabled $1 && v=1 || v=0
532     echo "#define $2 $v"
533 }
534
535 print_config_mak(){
536     enabled $1 && v= || v=!
537     echo "$v$2=yes"
538 }
539
540 print_config_asm(){
541     enabled $1 && echo "%define $2"
542 }
543
544 print_config(){
545     pfx=$1
546     files=$2
547     shift 2
548     for cfg; do
549         ucname="$(toupper $cfg)"
550         for f in $files; do
551             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
552         done
553     done
554 }
555
556 print_enabled(){
557     test "$1" = -n && end=" " && shift || end="\n"
558     suf=$1
559     shift
560     for v; do
561         enabled $v && printf "%s$end" ${v%$suf};
562     done
563 }
564
565 append(){
566     var=$1
567     shift
568     eval "$var=\"\$$var $*\""
569 }
570
571 prepend(){
572     var=$1
573     shift
574     eval "$var=\"$* \$$var\""
575 }
576
577 add_cppflags(){
578     append CPPFLAGS $($filter_cppflags "$@")
579 }
580
581 add_cflags(){
582     append CFLAGS $($filter_cflags "$@")
583 }
584
585 add_asflags(){
586     append ASFLAGS $($filter_asflags "$@")
587 }
588
589 add_ldflags(){
590     append LDFLAGS "$@"
591 }
592
593 add_extralibs(){
594     prepend extralibs "$@"
595 }
596
597 check_cmd(){
598     log "$@"
599     "$@" >> $logfile 2>&1
600 }
601
602 check_cc(){
603     log check_cc "$@"
604     cat > $TMPC
605     log_file $TMPC
606     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
607 }
608
609 check_cpp(){
610     log check_cpp "$@"
611     cat > $TMPC
612     log_file $TMPC
613     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
614 }
615
616 check_as(){
617     log check_as "$@"
618     cat > $TMPC
619     log_file $TMPC
620     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
621 }
622
623 check_asm(){
624     log check_asm "$@"
625     name="$1"
626     code="$2"
627     shift 2
628     disable $name
629     check_as "$@" <<EOF && enable $name
630 void foo(void){ __asm__ volatile($code); }
631 EOF
632 }
633
634 check_yasm(){
635     log check_yasm "$@"
636     echo "$1" > $TMPS
637     log_file $TMPS
638     shift 1
639     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
640 }
641
642 check_ld(){
643     log check_ld "$@"
644     flags=''
645     libs=''
646     for f; do
647         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
648     done
649     check_cc $($filter_cflags $flags) || return
650     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
651 }
652
653 check_cppflags(){
654     log check_cppflags "$@"
655     set -- $($filter_cppflags "$@")
656     check_cc "$@" <<EOF && append CPPFLAGS "$@"
657 int x;
658 EOF
659 }
660
661 check_cflags(){
662     log check_cflags "$@"
663     set -- $($filter_cflags "$@")
664     check_cc "$@" <<EOF && append CFLAGS "$@"
665 int x;
666 EOF
667 }
668
669 test_ldflags(){
670     log test_ldflags "$@"
671     check_ld "$@" <<EOF
672 int main(void){ return 0; }
673 EOF
674 }
675
676 check_ldflags(){
677     log check_ldflags "$@"
678     test_ldflags "$@" && add_ldflags "$@"
679 }
680
681 check_header(){
682     log check_header "$@"
683     header=$1
684     shift
685     disable_safe $header
686     check_cpp "$@" <<EOF && enable_safe $header
687 #include <$header>
688 int x;
689 EOF
690 }
691
692 check_func(){
693     log check_func "$@"
694     func=$1
695     shift
696     disable $func
697     check_ld "$@" <<EOF && enable $func
698 extern int $func();
699 int main(void){ $func(); }
700 EOF
701 }
702
703 check_mathfunc(){
704     log check_mathfunc "$@"
705     func=$1
706     shift
707     disable $func
708     check_ld "$@" <<EOF && enable $func
709 #include <math.h>
710 float foo(float f) { return $func(f); }
711 int main(void){ return 0; }
712 EOF
713 }
714
715 check_func_headers(){
716     log check_func_headers "$@"
717     headers=$1
718     funcs=$2
719     shift 2
720     {
721         for hdr in $headers; do
722             echo "#include <$hdr>"
723         done
724         for func in $funcs; do
725             echo "long check_$func(void) { return (long) $func; }"
726         done
727         echo "int main(void) { return 0; }"
728     } | check_ld "$@" && enable $funcs && enable_safe $headers
729 }
730
731 check_cpp_condition(){
732     log check_cpp_condition "$@"
733     header=$1
734     condition=$2
735     shift 2
736     check_cpp $($filter_cppflags "$@") <<EOF
737 #include <$header>
738 #if !($condition)
739 #error "unsatisfied condition: $condition"
740 #endif
741 EOF
742 }
743
744 check_lib(){
745     log check_lib "$@"
746     header="$1"
747     func="$2"
748     shift 2
749     check_header $header && check_func $func "$@" && add_extralibs "$@"
750 }
751
752 check_lib2(){
753     log check_lib2 "$@"
754     headers="$1"
755     funcs="$2"
756     shift 2
757     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
758 }
759
760 check_pkg_config(){
761     log check_pkg_config "$@"
762     pkg="$1"
763     headers="$2"
764     funcs="$3"
765     shift 3
766     $pkg_config --exists $pkg || return
767     pkg_cflags=$($pkg_config --cflags $pkg)
768     pkg_libs=$($pkg_config --libs $pkg)
769     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
770         set_safe ${pkg}_cflags $pkg_cflags   &&
771         set_safe ${pkg}_libs   $pkg_libs
772 }
773
774 check_exec(){
775     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
776 }
777
778 check_exec_crash(){
779     code=$(cat)
780
781     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
782     # are safe but may not be available everywhere.  Thus we use
783     # raise(SIGTERM) instead.  The check is run in a subshell so we
784     # can redirect the "Terminated" message from the shell.  SIGBUS
785     # is not defined by standard C so it is used conditionally.
786
787     (check_exec "$@") >> $logfile 2>&1 <<EOF
788 #include <signal.h>
789 static void sighandler(int sig){
790     raise(SIGTERM);
791 }
792 int main(void){
793     signal(SIGILL, sighandler);
794     signal(SIGFPE, sighandler);
795     signal(SIGSEGV, sighandler);
796 #ifdef SIGBUS
797     signal(SIGBUS, sighandler);
798 #endif
799     { $code }
800 }
801 EOF
802 }
803
804 check_type(){
805     log check_type "$@"
806     headers=$1
807     type=$2
808     shift 2
809     disable_safe "$type"
810     incs=""
811     for hdr in $headers; do
812         incs="$incs
813 #include <$hdr>"
814     done
815     check_cc "$@" <<EOF && enable_safe "$type"
816 $incs
817 $type v;
818 EOF
819 }
820
821 check_struct(){
822     log check_type "$@"
823     headers=$1
824     struct=$2
825     member=$3
826     shift 3
827     disable_safe "${struct}_${member}"
828     incs=""
829     for hdr in $headers; do
830         incs="$incs
831 #include <$hdr>"
832     done
833     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
834 $incs
835 const void *p = &(($struct *)0)->$member;
836 EOF
837 }
838
839 require(){
840     name="$1"
841     header="$2"
842     func="$3"
843     shift 3
844     check_lib $header $func "$@" || die "ERROR: $name not found"
845 }
846
847 require2(){
848     name="$1"
849     headers="$2"
850     func="$3"
851     shift 3
852     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
853 }
854
855 require_pkg_config(){
856     pkg="$1"
857     check_pkg_config "$@" || die "ERROR: $pkg not found"
858     add_cflags    $(get_safe ${pkg}_cflags)
859     add_extralibs $(get_safe ${pkg}_libs)
860 }
861
862 check_host_cc(){
863     log check_host_cc "$@"
864     cat > $TMPC
865     log_file $TMPC
866     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
867 }
868
869 check_host_cflags(){
870     log check_host_cflags "$@"
871     check_host_cc "$@" <<EOF && append host_cflags "$@"
872 int x;
873 EOF
874 }
875
876 apply(){
877     file=$1
878     shift
879     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
880 }
881
882 cp_if_changed(){
883     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
884     mkdir -p "$(dirname $2)"
885     cp -f "$1" "$2"
886 }
887
888 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
889 # system-dependent things.
890
891 COMPONENT_LIST="
892     bsfs
893     decoders
894     demuxers
895     encoders
896     filters
897     hwaccels
898     indevs
899     muxers
900     outdevs
901     parsers
902     protocols
903 "
904
905 CONFIG_LIST="
906     $COMPONENT_LIST
907     aandct
908     ac3dsp
909     avcodec
910     avdevice
911     avfilter
912     avformat
913     avisynth
914     bzlib
915     dct
916     doc
917     dwt
918     dxva2
919     fastdiv
920     ffmpeg
921     avconv
922     avplay
923     avprobe
924     avserver
925     fft
926     frei0r
927     gnutls
928     golomb
929     gpl
930     gray
931     h264dsp
932     h264pred
933     hardcoded_tables
934     huffman
935     libcdio
936     libdc1394
937     libdirac
938     libfaac
939     libfreetype
940     libgsm
941     libmp3lame
942     libnut
943     libopencore_amrnb
944     libopencore_amrwb
945     libopencv
946     libopenjpeg
947     libpulse
948     librtmp
949     libschroedinger
950     libspeex
951     libtheora
952     libvo_aacenc
953     libvo_amrwbenc
954     libvorbis
955     libvpx
956     libx264
957     libxavs
958     libxvid
959     lpc
960     lsp
961     mdct
962     memalign_hack
963     mlib
964     mpegaudiodsp
965     network
966     nonfree
967     openssl
968     pic
969     postproc
970     rdft
971     rtpdec
972     runtime_cpudetect
973     shared
974     sinewin
975     small
976     sram
977     static
978     swscale
979     swscale_alpha
980     thumb
981     vaapi
982     vda
983     vdpau
984     version3
985     x11grab
986     zlib
987 "
988
989 THREADS_LIST='
990     pthreads
991     w32threads
992 '
993
994 ARCH_LIST='
995     alpha
996     arm
997     avr32
998     avr32_ap
999     avr32_uc
1000     bfin
1001     ia64
1002     m68k
1003     mips
1004     mips64
1005     parisc
1006     ppc
1007     ppc64
1008     s390
1009     sh4
1010     sparc
1011     sparc64
1012     tomi
1013     x86
1014     x86_32
1015     x86_64
1016 '
1017
1018 ARCH_EXT_LIST='
1019     altivec
1020     amd3dnow
1021     amd3dnowext
1022     armv5te
1023     armv6
1024     armv6t2
1025     armvfp
1026     avx
1027     iwmmxt
1028     mmi
1029     mmx
1030     mmx2
1031     neon
1032     ppc4xx
1033     sse
1034     ssse3
1035     vfpv3
1036     vis
1037 '
1038
1039 HAVE_LIST_PUB='
1040     bigendian
1041     fast_unaligned
1042 '
1043
1044 HAVE_LIST="
1045     $ARCH_EXT_LIST
1046     $HAVE_LIST_PUB
1047     $THREADS_LIST
1048     aligned_stack
1049     alsa_asoundlib_h
1050     altivec_h
1051     arpa_inet_h
1052     asm_mod_y
1053     attribute_may_alias
1054     attribute_packed
1055     bswap
1056     closesocket
1057     cmov
1058     dcbzl
1059     dev_bktr_ioctl_bt848_h
1060     dev_bktr_ioctl_meteor_h
1061     dev_ic_bt8xx_h
1062     dev_video_meteor_ioctl_meteor_h
1063     dev_video_bktr_ioctl_bt848_h
1064     dlfcn_h
1065     dlopen
1066     dos_paths
1067     ebp_available
1068     ebx_available
1069     exp2
1070     exp2f
1071     fast_64bit
1072     fast_clz
1073     fast_cmov
1074     fcntl
1075     fork
1076     getaddrinfo
1077     gethrtime
1078     GetProcessMemoryInfo
1079     GetProcessTimes
1080     getrusage
1081     gnu_as
1082     struct_rusage_ru_maxrss
1083     ibm_asm
1084     inet_aton
1085     inline_asm
1086     isatty
1087     ldbrx
1088     libdc1394_1
1089     libdc1394_2
1090     llrint
1091     llrintf
1092     local_aligned_16
1093     local_aligned_8
1094     localtime_r
1095     log2
1096     log2f
1097     loongson
1098     lrint
1099     lrintf
1100     lzo1x_999_compress
1101     machine_ioctl_bt848_h
1102     machine_ioctl_meteor_h
1103     malloc_h
1104     MapViewOfFile
1105     memalign
1106     mkstemp
1107     mmap
1108     posix_memalign
1109     round
1110     roundf
1111     sdl
1112     sdl_video_size
1113     setmode
1114     sndio_h
1115     socklen_t
1116     soundcard_h
1117     poll_h
1118     setrlimit
1119     strerror_r
1120     strptime
1121     strtok_r
1122     struct_addrinfo
1123     struct_ipv6_mreq
1124     struct_sockaddr_in6
1125     struct_sockaddr_sa_len
1126     struct_sockaddr_storage
1127     symver
1128     symver_gnu_asm
1129     symver_asm_label
1130     sys_mman_h
1131     sys_resource_h
1132     sys_select_h
1133     sys_soundcard_h
1134     sys_videoio_h
1135     threads
1136     trunc
1137     truncf
1138     vfp_args
1139     VirtualAlloc
1140     winsock2_h
1141     xform_asm
1142     xmm_clobbers
1143     yasm
1144 "
1145
1146 # options emitted with CONFIG_ prefix but not available on command line
1147 CONFIG_EXTRA="
1148     avutil
1149     gplv3
1150     lgplv3
1151 "
1152
1153 CMDLINE_SELECT="
1154     $ARCH_EXT_LIST
1155     $CONFIG_LIST
1156     $THREADS_LIST
1157     asm
1158     cross_compile
1159     debug
1160     extra_warnings
1161     logging
1162     optimizations
1163     symver
1164     yasm
1165 "
1166
1167 PATHS_LIST='
1168     bindir
1169     datadir
1170     incdir
1171     libdir
1172     mandir
1173     prefix
1174     shlibdir
1175 '
1176
1177 CMDLINE_SET="
1178     $PATHS_LIST
1179     ar
1180     arch
1181     as
1182     build_suffix
1183     cc
1184     cpu
1185     cross_prefix
1186     dep_cc
1187     extra_version
1188     host_cc
1189     host_cflags
1190     host_ldflags
1191     host_libs
1192     host_os
1193     ld
1194     logfile
1195     malloc_prefix
1196     nm
1197     optflags
1198     pkg_config
1199     samples
1200     sysinclude
1201     sysroot
1202     target_exec
1203     target_os
1204     target_path
1205 "
1206
1207 CMDLINE_APPEND="
1208     extra_cflags
1209 "
1210
1211 # code dependency declarations
1212
1213 # architecture extensions
1214
1215 armv5te_deps="arm"
1216 armv6_deps="arm"
1217 armv6t2_deps="arm"
1218 armvfp_deps="arm"
1219 iwmmxt_deps="arm"
1220 neon_deps="arm"
1221 vfpv3_deps="armvfp"
1222
1223 mmi_deps="mips"
1224
1225 altivec_deps="ppc"
1226 ppc4xx_deps="ppc"
1227
1228 vis_deps="sparc"
1229
1230 x86_64_suggest="cmov fast_cmov"
1231 amd3dnow_deps="mmx"
1232 amd3dnowext_deps="amd3dnow"
1233 mmx_deps="x86"
1234 mmx2_deps="mmx"
1235 sse_deps="mmx"
1236 ssse3_deps="sse"
1237 avx_deps="ssse3"
1238
1239 aligned_stack_if_any="ppc x86"
1240 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1241 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1242 fast_unaligned_if_any="armv6 ppc x86"
1243
1244 need_memalign="altivec neon sse"
1245 inline_asm_deps="!tms470"
1246
1247 symver_if_any="symver_asm_label symver_gnu_asm"
1248
1249 # subsystems
1250 dct_select="rdft"
1251 mdct_select="fft"
1252 rdft_select="fft"
1253 mpegaudiodsp_select="dct"
1254
1255 # decoders / encoders / hardware accelerators
1256 aac_decoder_select="mdct sinewin"
1257 aac_encoder_select="mdct sinewin"
1258 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1259 ac3_decoder_select="mdct ac3dsp ac3_parser"
1260 ac3_encoder_select="mdct ac3dsp"
1261 ac3_fixed_encoder_select="mdct ac3dsp"
1262 alac_encoder_select="lpc"
1263 amrnb_decoder_select="lsp"
1264 amrwb_decoder_select="lsp"
1265 atrac1_decoder_select="mdct sinewin"
1266 atrac3_decoder_select="mdct"
1267 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1268 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1269 cavs_decoder_select="golomb"
1270 cook_decoder_select="mdct sinewin"
1271 cscd_decoder_suggest="zlib"
1272 dca_decoder_select="mdct"
1273 dnxhd_encoder_select="aandct"
1274 dxa_decoder_select="zlib"
1275 eac3_decoder_select="ac3_decoder"
1276 eac3_encoder_select="mdct ac3dsp"
1277 eamad_decoder_select="aandct"
1278 eatgq_decoder_select="aandct"
1279 eatqi_decoder_select="aandct"
1280 ffv1_decoder_select="golomb"
1281 flac_decoder_select="golomb"
1282 flac_encoder_select="golomb lpc"
1283 flashsv_decoder_select="zlib"
1284 flashsv_encoder_select="zlib"
1285 flashsv2_decoder_select="zlib"
1286 flv_decoder_select="h263_decoder"
1287 flv_encoder_select="h263_encoder"
1288 fraps_decoder_select="huffman"
1289 h261_encoder_select="aandct"
1290 h263_decoder_select="h263_parser"
1291 h263_encoder_select="aandct"
1292 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1293 h263i_decoder_select="h263_decoder"
1294 h263p_encoder_select="h263_encoder"
1295 h264_decoder_select="golomb h264dsp h264pred"
1296 h264_dxva2_hwaccel_deps="dxva2api_h"
1297 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1298 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1299 h264_vda_hwaccel_select="vda h264_decoder"
1300 h264_vdpau_decoder_select="vdpau h264_decoder"
1301 imc_decoder_select="fft mdct sinewin"
1302 jpegls_decoder_select="golomb"
1303 jpegls_encoder_select="golomb"
1304 ljpeg_encoder_select="aandct"
1305 loco_decoder_select="golomb"
1306 mjpeg_encoder_select="aandct"
1307 mlp_decoder_select="mlp_parser"
1308 mp1_decoder_select="mpegaudiodsp"
1309 mp2_decoder_select="mpegaudiodsp"
1310 mp3adu_decoder_select="mpegaudiodsp"
1311 mp3_decoder_select="mpegaudiodsp"
1312 mp3on4_decoder_select="mpegaudiodsp"
1313 mp1float_decoder_select="mpegaudiodsp"
1314 mp2float_decoder_select="mpegaudiodsp"
1315 mp3adufloat_decoder_select="mpegaudiodsp"
1316 mp3float_decoder_select="mpegaudiodsp"
1317 mp3on4float_decoder_select="mpegaudiodsp"
1318 mpeg1video_encoder_select="aandct"
1319 mpeg2video_encoder_select="aandct"
1320 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1321 mpeg4_encoder_select="h263_encoder"
1322 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1323 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1324 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1325 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1326 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1327 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1328 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1329 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1330 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1331 msmpeg4v1_decoder_select="h263_decoder"
1332 msmpeg4v1_encoder_select="h263_encoder"
1333 msmpeg4v2_decoder_select="h263_decoder"
1334 msmpeg4v2_encoder_select="h263_encoder"
1335 msmpeg4v3_decoder_select="h263_decoder"
1336 msmpeg4v3_encoder_select="h263_encoder"
1337 nellymoser_decoder_select="mdct sinewin"
1338 nellymoser_encoder_select="mdct sinewin"
1339 png_decoder_select="zlib"
1340 png_encoder_select="zlib"
1341 qcelp_decoder_select="lsp"
1342 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1343 ra_144_encoder_select="lpc"
1344 rv10_decoder_select="h263_decoder"
1345 rv10_encoder_select="h263_encoder"
1346 rv20_decoder_select="h263_decoder"
1347 rv20_encoder_select="h263_encoder"
1348 rv30_decoder_select="golomb h264pred"
1349 rv40_decoder_select="golomb h264pred"
1350 shorten_decoder_select="golomb"
1351 sipr_decoder_select="lsp"
1352 snow_decoder_select="dwt"
1353 snow_encoder_select="aandct dwt"
1354 svq1_encoder_select="aandct"
1355 svq3_decoder_select="golomb h264dsp h264pred"
1356 svq3_decoder_suggest="zlib"
1357 theora_decoder_select="vp3_decoder"
1358 tiff_decoder_suggest="zlib"
1359 tiff_encoder_suggest="zlib"
1360 truehd_decoder_select="mlp_decoder"
1361 tscc_decoder_select="zlib"
1362 twinvq_decoder_select="mdct lsp sinewin"
1363 vc1_decoder_select="h263_decoder"
1364 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1365 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1366 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1367 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1368 vc1image_decoder_select="vc1_decoder"
1369 vorbis_decoder_select="mdct"
1370 vorbis_encoder_select="mdct"
1371 vp6_decoder_select="huffman"
1372 vp6a_decoder_select="vp6_decoder"
1373 vp6f_decoder_select="vp6_decoder"
1374 vp8_decoder_select="h264pred"
1375 wmapro_decoder_select="mdct sinewin"
1376 wmav1_decoder_select="mdct sinewin"
1377 wmav1_encoder_select="mdct sinewin"
1378 wmav2_decoder_select="mdct sinewin"
1379 wmav2_encoder_select="mdct sinewin"
1380 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1381 wmv1_decoder_select="h263_decoder"
1382 wmv1_encoder_select="h263_encoder"
1383 wmv2_decoder_select="h263_decoder"
1384 wmv2_encoder_select="h263_encoder"
1385 wmv3_decoder_select="vc1_decoder"
1386 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1387 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1388 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1389 wmv3image_decoder_select="wmv3_decoder"
1390 zlib_decoder_select="zlib"
1391 zlib_encoder_select="zlib"
1392 zmbv_decoder_select="zlib"
1393 zmbv_encoder_select="zlib"
1394
1395 vaapi_deps="va_va_h"
1396 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1397 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1398
1399 # parsers
1400 h264_parser_select="golomb h264dsp h264pred"
1401
1402 # external libraries
1403 libdirac_decoder_deps="libdirac !libschroedinger"
1404 libdirac_encoder_deps="libdirac"
1405 libfaac_encoder_deps="libfaac"
1406 libgsm_decoder_deps="libgsm"
1407 libgsm_encoder_deps="libgsm"
1408 libgsm_ms_decoder_deps="libgsm"
1409 libgsm_ms_encoder_deps="libgsm"
1410 libmp3lame_encoder_deps="libmp3lame"
1411 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1412 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1413 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1414 libopenjpeg_decoder_deps="libopenjpeg"
1415 libschroedinger_decoder_deps="libschroedinger"
1416 libschroedinger_encoder_deps="libschroedinger"
1417 libspeex_decoder_deps="libspeex"
1418 libspeex_encoder_deps="libspeex"
1419 libtheora_encoder_deps="libtheora"
1420 libvo_aacenc_encoder_deps="libvo_aacenc"
1421 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1422 libvorbis_encoder_deps="libvorbis"
1423 libvpx_decoder_deps="libvpx"
1424 libvpx_encoder_deps="libvpx"
1425 libx264_encoder_deps="libx264"
1426 libxavs_encoder_deps="libxavs"
1427 libxvid_encoder_deps="libxvid"
1428
1429 # demuxers / muxers
1430 ac3_demuxer_select="ac3_parser"
1431 asf_stream_muxer_select="asf_muxer"
1432 avisynth_demuxer_deps="avisynth"
1433 dirac_demuxer_select="dirac_parser"
1434 eac3_demuxer_select="ac3_parser"
1435 flac_demuxer_select="flac_parser"
1436 ipod_muxer_select="mov_muxer"
1437 libnut_demuxer_deps="libnut"
1438 libnut_muxer_deps="libnut"
1439 matroska_audio_muxer_select="matroska_muxer"
1440 matroska_demuxer_suggest="zlib bzlib"
1441 mov_demuxer_suggest="zlib"
1442 mp3_demuxer_select="mpegaudio_parser"
1443 mp4_muxer_select="mov_muxer"
1444 mpegtsraw_demuxer_select="mpegts_demuxer"
1445 mxf_d10_muxer_select="mxf_muxer"
1446 ogg_demuxer_select="golomb"
1447 psp_muxer_select="mov_muxer"
1448 rtp_demuxer_select="sdp_demuxer"
1449 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1450 rtsp_demuxer_select="http_protocol rtpdec"
1451 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1452 sap_demuxer_select="sdp_demuxer"
1453 sap_muxer_select="rtp_muxer rtp_protocol"
1454 sdp_demuxer_select="rtpdec"
1455 spdif_muxer_select="aac_parser"
1456 tg2_muxer_select="mov_muxer"
1457 tgp_muxer_select="mov_muxer"
1458 w64_demuxer_deps="wav_demuxer"
1459
1460 # indevs / outdevs
1461 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1462 alsa_outdev_deps="alsa_asoundlib_h"
1463 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1464 dv1394_indev_deps="dv1394 dv_demuxer"
1465 fbdev_indev_deps="linux_fb_h"
1466 jack_indev_deps="jack_jack_h"
1467 libcdio_indev_deps="libcdio"
1468 libdc1394_indev_deps="libdc1394"
1469 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1470 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1471 pulse_indev_deps="libpulse"
1472 sndio_indev_deps="sndio_h"
1473 sndio_outdev_deps="sndio_h"
1474 v4l_indev_deps="linux_videodev_h"
1475 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1476 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1477 vfwcap_indev_extralibs="-lavicap32"
1478 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1479 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1480
1481 # protocols
1482 gopher_protocol_deps="network"
1483 http_protocol_deps="network"
1484 http_protocol_select="tcp_protocol"
1485 https_protocol_select="tls_protocol"
1486 mmsh_protocol_select="http_protocol"
1487 mmst_protocol_deps="network"
1488 rtmp_protocol_select="tcp_protocol"
1489 rtp_protocol_select="udp_protocol"
1490 tcp_protocol_deps="network"
1491 tls_protocol_deps_any="openssl gnutls"
1492 tls_protocol_select="tcp_protocol"
1493 udp_protocol_deps="network"
1494
1495 # filters
1496 blackframe_filter_deps="gpl"
1497 boxblur_filter_deps="gpl"
1498 cropdetect_filter_deps="gpl"
1499 delogo_filter_deps="gpl"
1500 drawtext_filter_deps="libfreetype"
1501 frei0r_filter_deps="frei0r dlopen strtok_r"
1502 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1503 hqdn3d_filter_deps="gpl"
1504 ocv_filter_deps="libopencv"
1505 scale_filter_deps="swscale"
1506 yadif_filter_deps="gpl"
1507
1508 # libraries
1509 avdevice_deps="avcodec avformat"
1510 avformat_deps="avcodec"
1511 postproc_deps="gpl"
1512
1513 # programs
1514 ffmpeg_deps="avcodec avformat swscale"
1515 ffmpeg_select="buffer_filter"
1516 avconv_deps="avcodec avformat swscale"
1517 avconv_select="buffer_filter"
1518 avplay_deps="avcodec avformat swscale sdl"
1519 avplay_select="rdft"
1520 avprobe_deps="avcodec avformat"
1521 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1522 avserver_extralibs='$ldl'
1523
1524 doc_deps="texi2html"
1525
1526 # tests
1527
1528 test_deps(){
1529     suf1=$1
1530     suf2=$2
1531     shift 2
1532     for v; do
1533         dep=${v%=*}
1534         tests=${v#*=}
1535         for name in ${tests}; do
1536             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1537         done
1538     done
1539 }
1540
1541 mxf_d10_test_deps="avfilter"
1542 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1543
1544 test_deps _encoder _decoder                                             \
1545     adpcm_g726=g726                                                     \
1546     adpcm_ima_qt                                                        \
1547     adpcm_ima_wav                                                       \
1548     adpcm_ms                                                            \
1549     adpcm_swf                                                           \
1550     adpcm_yamaha=adpcm_yam                                              \
1551     alac                                                                \
1552     asv1                                                                \
1553     asv2                                                                \
1554     bmp                                                                 \
1555     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1556     dvvideo="dv dv50"                                                   \
1557     ffv1                                                                \
1558     flac                                                                \
1559     flashsv                                                             \
1560     flv                                                                 \
1561     gif                                                                 \
1562     h261                                                                \
1563     h263="h263 h263p"                                                   \
1564     huffyuv                                                             \
1565     jpegls                                                              \
1566     mjpeg="jpg mjpeg ljpeg"                                             \
1567     mp2                                                                 \
1568     mpeg1video="mpeg mpeg1b"                                            \
1569     mpeg2video="mpeg2 mpeg2thread"                                      \
1570     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1571     msmpeg4v3=msmpeg4                                                   \
1572     msmpeg4v2                                                           \
1573     pbm=pbmpipe                                                         \
1574     pcx                                                                 \
1575     pgm="pgm pgmpipe"                                                   \
1576     png                                                                 \
1577     ppm="ppm ppmpipe"                                                   \
1578     rawvideo="rgb yuv"                                                  \
1579     roq                                                                 \
1580     rv10                                                                \
1581     rv20                                                                \
1582     sgi                                                                 \
1583     snow="snow snowll"                                                  \
1584     svq1                                                                \
1585     targa=tga                                                           \
1586     tiff                                                                \
1587     wmav1                                                               \
1588     wmav2                                                               \
1589     wmv1                                                                \
1590     wmv2                                                                \
1591
1592 test_deps _muxer _demuxer                                               \
1593     aiff                                                                \
1594     pcm_alaw=alaw                                                       \
1595     asf                                                                 \
1596     au                                                                  \
1597     avi                                                                 \
1598     dv=dv_fmt                                                           \
1599     ffm                                                                 \
1600     flv=flv_fmt                                                         \
1601     gxf                                                                 \
1602     matroska=mkv                                                        \
1603     mmf                                                                 \
1604     mov                                                                 \
1605     pcm_mulaw=mulaw                                                     \
1606     mxf="mxf mxf_d10"                                                   \
1607     nut                                                                 \
1608     ogg                                                                 \
1609     rawvideo=pixfmt                                                     \
1610     rm                                                                  \
1611     swf                                                                 \
1612     mpegts=ts                                                           \
1613     voc                                                                 \
1614     wav                                                                 \
1615     yuv4mpegpipe=yuv4mpeg                                               \
1616
1617 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1618 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1619
1620 # default parameters
1621
1622 logfile="config.log"
1623
1624 # installation paths
1625 prefix_default="/usr/local"
1626 bindir_default='${prefix}/bin'
1627 datadir_default='${prefix}/share/avconv'
1628 incdir_default='${prefix}/include'
1629 libdir_default='${prefix}/lib'
1630 mandir_default='${prefix}/share/man'
1631 shlibdir_default="$libdir_default"
1632
1633 # toolchain
1634 ar_default="ar"
1635 cc_default="gcc"
1636 cc_version=\"unknown\"
1637 host_cc_default="gcc"
1638 ln_s="ln -sf"
1639 nm_default="nm"
1640 objformat="elf"
1641 pkg_config_default=pkg-config
1642 ranlib="ranlib"
1643 yasmexe="yasm"
1644 nogas=":"
1645
1646 nm_opts='-g'
1647
1648 # machine
1649 arch_default=$(uname -m)
1650 cpu="generic"
1651
1652 # OS
1653 target_os_default=$(tolower $(uname -s))
1654 host_os=$target_os_default
1655
1656 # configurable options
1657 enable avcodec
1658 enable avdevice
1659 enable avfilter
1660 enable avformat
1661 enable avutil
1662 enable asm
1663 enable debug
1664 enable doc
1665 enable fastdiv
1666 enable ffmpeg
1667 enable avconv
1668 enable avplay
1669 enable avprobe
1670 enable avserver
1671 enable network
1672 enable optimizations
1673 enable postproc
1674 enable protocols
1675 enable static
1676 enable swscale
1677 enable swscale_alpha
1678
1679 # build settings
1680 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1681 AVSERVERLDFLAGS=-Wl,-E
1682 LIBPREF="lib"
1683 LIBSUF=".a"
1684 FULLNAME='$(NAME)$(BUILDSUF)'
1685 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1686 SLIBPREF="lib"
1687 SLIBSUF=".so"
1688 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1689 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1690 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1691 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1692 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1693 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1694
1695 AS_O='-o $@'
1696 CC_O='-o $@'
1697
1698 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1699 host_libs='-lm'
1700
1701 target_path='$(CURDIR)'
1702
1703 # since the object filename is not given with the -MM flag, the compiler
1704 # is only able to print the basename, and we must add the path ourselves
1705 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1706 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1707
1708 # find source path
1709 if test -f configure; then
1710     source_path=.
1711 else
1712     source_path=$(cd $(dirname "$0"); pwd)
1713     echo "$source_path" | grep -q '[[:blank:]]' &&
1714         die "Out of tree builds are impossible with whitespace in source path."
1715     test -e "$source_path/config.h" &&
1716         die "Out of tree builds are impossible with config.h in source dir."
1717 fi
1718
1719 for v in "$@"; do
1720     r=${v#*=}
1721     l=${v%"$r"}
1722     r=$(sh_quote "$r")
1723     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1724 done
1725
1726 find_things(){
1727     thing=$1
1728     pattern=$2
1729     file=$source_path/$3
1730     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1731 }
1732
1733 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1734 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1735 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1736 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1737 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1738 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1739 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1740 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1741 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1742 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1743 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1744
1745 find_tests(){
1746     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1747 }
1748
1749 ACODEC_TESTS=$(find_tests acodec)
1750 VCODEC_TESTS=$(find_tests vsynth1)
1751 LAVF_TESTS=$(find_tests lavf)
1752 LAVFI_TESTS=$(find_tests lavfi)
1753 SEEK_TESTS=$(find_tests seek seek_)
1754
1755 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1756
1757 for n in $COMPONENT_LIST; do
1758     v=$(toupper ${n%s})_LIST
1759     eval enable \$$v
1760     eval ${n}_if_any="\$$v"
1761 done
1762
1763 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1764
1765 die_unknown(){
1766     echo "Unknown option \"$1\"."
1767     echo "See $0 --help for available options."
1768     exit 1
1769 }
1770
1771 show_list() {
1772     suffix=_$1
1773     shift
1774     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1775     exit 0
1776 }
1777
1778 for opt do
1779     optval="${opt#*=}"
1780     case "$opt" in
1781     --extra-ldflags=*) add_ldflags $optval
1782     ;;
1783     --extra-libs=*) add_extralibs $optval
1784     ;;
1785     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1786     ;;
1787     --enable-debug=*) debuglevel="$optval"
1788     ;;
1789     --disable-everything)
1790     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1791     ;;
1792     --enable-*=*|--disable-*=*)
1793     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1794     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1795     eval list=\$$(toupper $thing)_LIST
1796     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1797     $action $(filter "$name" $list)
1798     ;;
1799     --enable-?*|--disable-?*)
1800     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1801     if is_in $option $COMPONENT_LIST; then
1802         test $action = disable && action=unset
1803         eval $action \$$(toupper ${option%s})_LIST
1804     elif is_in $option $CMDLINE_SELECT; then
1805         $action $option
1806     else
1807         die_unknown $opt
1808     fi
1809     ;;
1810     --list-*)
1811         NAME="${opt#--list-}"
1812         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1813         NAME=${NAME%s}
1814         eval show_list $NAME \$$(toupper $NAME)_LIST
1815     ;;
1816     --help|-h) show_help
1817     ;;
1818     *)
1819     optname="${opt%%=*}"
1820     optname="${optname#--}"
1821     optname=$(echo "$optname" | sed 's/-/_/g')
1822     if is_in $optname $CMDLINE_SET; then
1823         eval $optname='$optval'
1824     elif is_in $optname $CMDLINE_APPEND; then
1825         append $optname "$optval"
1826     else
1827          die_unknown $opt
1828     fi
1829     ;;
1830     esac
1831 done
1832
1833 disabled logging && logfile=/dev/null
1834
1835 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1836 set >> $logfile
1837
1838 test -n "$cross_prefix" && enable cross_compile
1839
1840 if enabled cross_compile; then
1841     test -n "$arch" && test -n "$target_os" ||
1842         die "Must specify target arch and OS when cross-compiling"
1843 fi
1844
1845 set_default arch target_os
1846
1847 ar_default="${cross_prefix}${ar_default}"
1848 cc_default="${cross_prefix}${cc_default}"
1849 nm_default="${cross_prefix}${nm_default}"
1850 pkg_config_default="${cross_prefix}${pkg_config_default}"
1851 ranlib="${cross_prefix}${ranlib}"
1852
1853 sysinclude_default="${sysroot}/usr/include"
1854
1855 set_default cc nm pkg_config sysinclude
1856 enabled cross_compile || host_cc_default=$cc
1857 set_default host_cc
1858
1859 if ! $pkg_config --version >/dev/null 2>&1; then
1860     warn "$pkg_config not found, library detection may fail."
1861     pkg_config=false
1862 fi
1863
1864 exesuf() {
1865     case $1 in
1866         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1867     esac
1868 }
1869
1870 EXESUF=$(exesuf $target_os)
1871 HOSTEXESUF=$(exesuf $host_os)
1872
1873 # set temporary file name
1874 : ${TMPDIR:=$TEMPDIR}
1875 : ${TMPDIR:=$TMP}
1876 : ${TMPDIR:=/tmp}
1877
1878 if ! check_cmd mktemp -u XXXXXX; then
1879     # simple replacement for missing mktemp
1880     # NOT SAFE FOR GENERAL USE
1881     mktemp(){
1882         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1883     }
1884 fi
1885
1886 tmpfile(){
1887     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1888         (set -C; exec > $tmp) 2>/dev/null ||
1889         die "Unable to create temporary file in $TMPDIR."
1890     append TMPFILES $tmp
1891     eval $1=$tmp
1892 }
1893
1894 trap 'rm -f -- $TMPFILES' EXIT
1895
1896 tmpfile TMPC  .c
1897 tmpfile TMPE  $EXESUF
1898 tmpfile TMPH  .h
1899 tmpfile TMPO  .o
1900 tmpfile TMPS  .S
1901 tmpfile TMPV  .ver
1902 tmpfile TMPSH .sh
1903 tmpfile TMPASM .asm
1904
1905 unset -f mktemp
1906
1907 chmod +x $TMPE
1908
1909 # make sure we can execute files in $TMPDIR
1910 cat > $TMPSH 2>> $logfile <<EOF
1911 #! /bin/sh
1912 EOF
1913 chmod +x $TMPSH >> $logfile 2>&1
1914 if ! $TMPSH >> $logfile 2>&1; then
1915     cat <<EOF
1916 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1917 variable to another directory and make sure that it is not mounted noexec.
1918 EOF
1919     die "Sanity test failed."
1920 fi
1921
1922 filter_cflags=echo
1923 filter_cppflags=echo
1924 filter_asflags=echo
1925
1926 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1927     cc_type=llvm_gcc
1928     cc_version=__VERSION__
1929     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1930     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1931     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1932     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1933     speed_cflags='-O3'
1934     size_cflags='-Os'
1935 elif $cc -v 2>&1 | grep -qi ^gcc; then
1936     cc_type=gcc
1937     cc_version=__VERSION__
1938     gcc_version=$($cc --version | head -n1)
1939     gcc_basever=$($cc -dumpversion)
1940     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1941     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1942     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1943     if ! $cc -dumpversion | grep -q '^2\.'; then
1944         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1945         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1946     fi
1947     speed_cflags='-O3'
1948     size_cflags='-Os'
1949 elif $cc --version 2>/dev/null | grep -q Intel; then
1950     cc_type=icc
1951     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1952     cc_ident=$($cc --version | head -n1)
1953     icc_version=$($cc -dumpversion)
1954     CC_DEPFLAGS='-MMD'
1955     AS_DEPFLAGS='-MMD'
1956     speed_cflags='-O3'
1957     size_cflags='-Os'
1958     noopt_cflags='-O1'
1959 elif $cc -v 2>&1 | grep -q xlc; then
1960     cc_type=xlc
1961     cc_version="AV_STRINGIFY(__IBMC__)"
1962     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1963     speed_cflags='-O5'
1964     size_cflags='-O5 -qcompact'
1965 elif $cc -V 2>/dev/null | grep -q Compaq; then
1966     cc_type=ccc
1967     cc_version="AV_STRINGIFY(__DECC_VER)"
1968     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1969     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1970     debuglevel=3
1971     add_ldflags -Wl,-z,now # calls to libots crash without this
1972     speed_cflags='-fast'
1973     size_cflags='-O1'
1974 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1975     test -d "$sysroot" || die "No valid sysroot specified."
1976     cc_type=armcc
1977     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1978     cc_ident=$($cc --vsn | head -n1)
1979     armcc_conf="$PWD/armcc.conf"
1980     $cc --arm_linux_configure                 \
1981         --arm_linux_config_file="$armcc_conf" \
1982         --configure_sysroot="$sysroot"        \
1983         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1984         die "Error creating armcc configuration file."
1985     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1986     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1987     as_default="${cross_prefix}gcc"
1988     CC_DEPFLAGS='-MMD'
1989     AS_DEPFLAGS='-MMD'
1990     speed_cflags='-O3'
1991     size_cflags='-Os'
1992     filter_asflags="filter_out -W${armcc_opt}*"
1993 elif $cc -version 2>/dev/null | grep -q TMS470; then
1994     cc_type=tms470
1995     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1996     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1997     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1998     CC_O='-fr=$(@D)'
1999     as_default="${cross_prefix}gcc"
2000     ld_default="${cross_prefix}gcc"
2001     TMPO=$(basename $TMPC .c).o
2002     append TMPFILES $TMPO
2003     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2004     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2005     AS_DEPFLAGS='-MMD'
2006     speed_cflags='-O3 -mf=5'
2007     size_cflags='-O3 -mf=2'
2008     filter_cflags=tms470_flags
2009     tms470_flags(){
2010         for flag; do
2011             case $flag in
2012                 -march=*|-mcpu=*)
2013                     case "${flag#*=}" in
2014                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2015                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2016                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2017                         armv6*|arm11*)          echo -mv=6   ;;
2018                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2019                                                 echo -mv=5e  ;;
2020                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2021                     esac
2022                     ;;
2023                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2024                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2025                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2026                 -msoft-float)   echo --float_support=vfplib       ;;
2027                 -O[0-3]|-mf=*)  echo $flag                        ;;
2028                 -g)             echo -g -mn                       ;;
2029                 -pds=*)         echo $flag                        ;;
2030             esac
2031         done
2032     }
2033 elif $cc -v 2>&1 | grep -q clang; then
2034     cc_type=clang
2035     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2036         cc_version=__clang_version__ || cc_version=__VERSION__
2037     cc_ident=$($cc --version | head -n1)
2038     CC_DEPFLAGS='-MMD'
2039     AS_DEPFLAGS='-MMD'
2040     speed_cflags='-O3'
2041     size_cflags='-Os'
2042 elif $cc -V 2>&1 | grep -q Sun; then
2043     cc_type=suncc
2044     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2045     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2046     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2047     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2048     add_ldflags -xc99
2049     speed_cflags='-O5'
2050     size_cflags='-O5 -xspace'
2051     filter_cflags=suncc_flags
2052     suncc_flags(){
2053         for flag; do
2054             case $flag in
2055                 -march=*|-mcpu=*)
2056                     case "${flag#*=}" in
2057                         native)                   echo -xtarget=native       ;;
2058                         v9|niagara)               echo -xarch=sparc          ;;
2059                         ultrasparc)               echo -xarch=sparcvis       ;;
2060                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2061                         i586|pentium)             echo -xchip=pentium        ;;
2062                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2063                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2064                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2065                         pentium4*)          echo -xtarget=pentium4           ;;
2066                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2067                         *-sse3)             echo -xarch=sse3                 ;;
2068                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2069                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2070                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2071                         k8|opteron|athlon64|athlon-fx)
2072                                                   echo -xarch=sse2a          ;;
2073                         athlon*)                  echo -xarch=pentium_proa   ;;
2074                     esac
2075                     ;;
2076                 -std=c99)             echo -xc99              ;;
2077                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2078                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2079                 -W*,*)                echo $flag              ;;
2080                 -f*-*|-W*)                                    ;;
2081                 *)                    echo $flag              ;;
2082             esac
2083         done
2084     }
2085 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2086     cc_type=pathscale
2087     cc_version=__PATHSCALE__
2088     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2089     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2090     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2091     speed_cflags='-O2'
2092     size_cflags='-Os'
2093     filter_cflags='filter_out -Wdisabled-optimization'
2094 elif $cc -v 2>&1 | grep -q Open64; then
2095     cc_type=open64
2096     cc_version=__OPEN64__
2097     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2098     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2099     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2100     speed_cflags='-O2'
2101     size_cflags='-Os'
2102     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2103 fi
2104
2105 test -n "$cc_type" && enable $cc_type ||
2106     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2107
2108 : ${as_default:=$cc}
2109 : ${dep_cc_default:=$cc}
2110 : ${ld_default:=$cc}
2111 set_default ar as dep_cc ld
2112
2113 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2114 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2115
2116 add_cflags $extra_cflags
2117 add_asflags $extra_cflags
2118
2119 if test -n "$sysroot"; then
2120     case "$cc_type" in
2121         gcc|llvm_gcc|clang)
2122             add_cppflags --sysroot="$sysroot"
2123             add_ldflags --sysroot="$sysroot"
2124         ;;
2125         tms470)
2126             add_cppflags -I"$sysinclude"
2127             add_ldflags  --sysroot="$sysroot"
2128         ;;
2129     esac
2130 fi
2131
2132 if test "$cpu" = host; then
2133     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2134
2135     case "$cc_type" in
2136         gcc|llvm_gcc)
2137             check_native(){
2138                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2139                 sed -n "/cc1.*$1=/{
2140                             s/.*$1=\\([^ ]*\\).*/\\1/
2141                             p
2142                             q
2143                         }" $TMPE
2144             }
2145             cpu=$(check_native -march || check_native -mcpu)
2146         ;;
2147     esac
2148
2149     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2150 fi
2151
2152 # Deal with common $arch aliases
2153 case "$arch" in
2154     arm*)
2155         arch="arm"
2156     ;;
2157     mips|mipsel|IP*)
2158         arch="mips"
2159     ;;
2160     mips64*)
2161         arch="mips"
2162         subarch="mips64"
2163     ;;
2164     parisc|hppa)
2165         arch="parisc"
2166     ;;
2167     parisc64|hppa64)
2168         arch="parisc"
2169         subarch="parisc64"
2170     ;;
2171     "Power Macintosh"|ppc|powerpc)
2172         arch="ppc"
2173     ;;
2174     ppc64|powerpc64)
2175         arch="ppc"
2176         subarch="ppc64"
2177     ;;
2178     s390|s390x)
2179         arch="s390"
2180     ;;
2181     sh4|sh)
2182         arch="sh4"
2183     ;;
2184     sun4u|sparc64)
2185         arch="sparc"
2186         subarch="sparc64"
2187     ;;
2188     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2189         arch="x86"
2190     ;;
2191 esac
2192
2193 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2194 enable $arch
2195
2196 # Add processor-specific flags
2197 if test "$cpu" = generic; then
2198     : do nothing
2199 elif enabled ppc; then
2200
2201     case $(tolower $cpu) in
2202         601|ppc601|powerpc601)
2203             cpuflags="-mcpu=601"
2204             disable altivec
2205         ;;
2206         603*|ppc603*|powerpc603*)
2207             cpuflags="-mcpu=603"
2208             disable altivec
2209         ;;
2210         604*|ppc604*|powerpc604*)
2211             cpuflags="-mcpu=604"
2212             disable altivec
2213         ;;
2214         g3|75*|ppc75*|powerpc75*)
2215             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2216             disable altivec
2217         ;;
2218         g4|745*|ppc745*|powerpc745*)
2219             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2220         ;;
2221         74*|ppc74*|powerpc74*)
2222             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2223         ;;
2224         g5|970|ppc970|powerpc970|power4*)
2225             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2226         ;;
2227         cell)
2228             cpuflags="-mcpu=cell"
2229             enable ldbrx
2230         ;;
2231         e500v2)
2232             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2233             disable altivec
2234         ;;
2235         e500)
2236             cpuflags="-mcpu=8540 -mhard-float"
2237             disable altivec
2238         ;;
2239     esac
2240
2241 elif enabled x86; then
2242
2243     case $cpu in
2244         i[345]86|pentium)
2245             cpuflags="-march=$cpu"
2246             disable mmx
2247         ;;
2248         # targets that do NOT support conditional mov (cmov)
2249         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2250             cpuflags="-march=$cpu"
2251             disable cmov
2252         ;;
2253         # targets that do support conditional mov (cmov)
2254         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2255             cpuflags="-march=$cpu"
2256             enable cmov
2257             enable fast_cmov
2258         ;;
2259         # targets that do support conditional mov but on which it's slow
2260         pentium4|pentium4m|prescott|nocona)
2261             cpuflags="-march=$cpu"
2262             enable cmov
2263             disable fast_cmov
2264         ;;
2265     esac
2266
2267 elif enabled sparc; then
2268
2269     case $cpu in
2270         niagara)
2271             cpuflags="-mcpu=$cpu"
2272             disable vis
2273         ;;
2274         sparc64)
2275             cpuflags="-mcpu=v9"
2276         ;;
2277     esac
2278
2279 elif enabled arm; then
2280
2281     case $cpu in
2282         armv*)
2283             cpuflags="-march=$cpu"
2284             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2285         ;;
2286         *)
2287             cpuflags="-mcpu=$cpu"
2288             case $cpu in
2289                 cortex-a*)                               subarch=armv7a  ;;
2290                 cortex-r*)                               subarch=armv7r  ;;
2291                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2292                 arm11*)                                  subarch=armv6   ;;
2293                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2294                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2295             esac
2296         ;;
2297     esac
2298
2299 elif enabled alpha; then
2300
2301     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2302
2303 elif enabled bfin; then
2304
2305     cpuflags="-mcpu=$cpu"
2306
2307 elif enabled mips; then
2308
2309     cpuflags="-march=$cpu"
2310
2311 elif enabled avr32; then
2312
2313     case $cpu in
2314         ap7[02]0[0-2])
2315             subarch="avr32_ap"
2316             cpuflags="-mpart=$cpu"
2317         ;;
2318         ap)
2319             subarch="avr32_ap"
2320             cpuflags="-march=$cpu"
2321         ;;
2322         uc3[ab]*)
2323             subarch="avr32_uc"
2324             cpuflags="-mcpu=$cpu"
2325         ;;
2326         uc)
2327             subarch="avr32_uc"
2328             cpuflags="-march=$cpu"
2329         ;;
2330     esac
2331
2332 fi
2333
2334 add_cflags $cpuflags
2335 add_asflags $cpuflags
2336
2337 # compiler sanity check
2338 check_exec <<EOF
2339 int main(void){ return 0; }
2340 EOF
2341 if test "$?" != 0; then
2342     echo "$cc is unable to create an executable file."
2343     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2344         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2345         echo "Only do this if you know what cross compiling means."
2346     fi
2347     die "C compiler test failed."
2348 fi
2349
2350 add_cppflags -D_ISOC99_SOURCE
2351 check_cflags -std=c99
2352 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2353 #include <stdlib.h>
2354 EOF
2355 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2356 #include <stdlib.h>
2357 EOF
2358
2359 check_host_cflags -std=c99
2360 check_host_cflags -Wall
2361
2362 case "$arch" in
2363     alpha|ia64|mips|parisc|sparc)
2364         spic=$shared
2365     ;;
2366     x86)
2367         subarch="x86_32"
2368         check_cc <<EOF && subarch="x86_64"
2369         int test[(int)sizeof(char*) - 7];
2370 EOF
2371         if test "$subarch" = "x86_64"; then
2372             spic=$shared
2373         fi
2374     ;;
2375 esac
2376
2377 enable $subarch
2378 enabled spic && enable pic
2379
2380 # OS specific
2381 case $target_os in
2382     haiku)
2383         prefix_default="/boot/common"
2384         network_extralibs="-lnetwork"
2385         host_libs=
2386         ;;
2387     sunos)
2388         AVSERVERLDFLAGS=""
2389         SHFLAGS='-shared -Wl,-h,$$(@F)'
2390         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2391         network_extralibs="-lsocket -lnsl"
2392         add_cppflags -D__EXTENSIONS__
2393         # When using suncc to build, the Solaris linker will mark
2394         # an executable with each instruction set encountered by
2395         # the Solaris assembler.  As our libraries contain their own
2396         # guards for processor-specific code, instead suppress
2397         # generation of the HWCAPS ELF section on Solaris x86 only.
2398         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2399         nm_opts='-P -g'
2400         ;;
2401     netbsd)
2402         disable symver
2403         oss_indev_extralibs="-lossaudio"
2404         oss_outdev_extralibs="-lossaudio"
2405         ;;
2406     openbsd)
2407         enable malloc_aligned
2408         # On OpenBSD 4.5. the compiler does not use PIC unless
2409         # explicitly using -fPIC. Libav builds fine without PIC,
2410         # however the generated executable will not do anything
2411         # (simply quits with exit-code 1, no crash, no output).
2412         # Thus explicitly enable PIC here.
2413         enable pic
2414         disable symver
2415         SHFLAGS='-shared'
2416         oss_indev_extralibs="-lossaudio"
2417         oss_outdev_extralibs="-lossaudio"
2418         ;;
2419     dragonfly)
2420         enable malloc_aligned
2421         disable symver
2422         ;;
2423     freebsd)
2424         enable malloc_aligned
2425         ;;
2426     bsd/os)
2427         add_extralibs -lpoll -lgnugetopt
2428         ;;
2429     darwin)
2430         enable malloc_aligned
2431         gas="gas-preprocessor.pl $cc"
2432         enabled ppc && add_asflags -force_cpusubtype_ALL
2433         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2434         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2435         add_ldflags -Wl,-dynamic,-search_paths_first
2436         SLIBSUF=".dylib"
2437         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2438         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2439         AVSERVERLDFLAGS=-Wl,-bind_at_load
2440         objformat="macho"
2441         enabled x86_64 && objformat="macho64"
2442         enabled_any pic shared ||
2443             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2444         ;;
2445     mingw32*)
2446         if test $target_os = "mingw32ce"; then
2447             disable network
2448         else
2449             target_os=mingw32
2450             enable_weak w32threads
2451         fi
2452         LIBTARGET=i386
2453         if enabled x86_64; then
2454             enable malloc_aligned
2455             LIBTARGET="i386:x86-64"
2456         elif enabled arm; then
2457             LIBTARGET=arm-wince
2458         fi
2459         shlibdir_default="$bindir_default"
2460         SLIBPREF=""
2461         SLIBSUF=".dll"
2462         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2463         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2464         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2465         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2466         SLIB_INSTALL_LINKS=
2467         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2468         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2469         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'
2470         objformat="win32"
2471         dlltool="${cross_prefix}dlltool"
2472         enable dos_paths
2473         check_cflags -fno-common
2474         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2475                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2476                 die "ERROR: MinGW runtime version must be >= 3.15."
2477         add_cppflags -U__STRICT_ANSI__
2478         ;;
2479     cygwin*)
2480         target_os=cygwin
2481         shlibdir_default="$bindir_default"
2482         SLIBPREF="cyg"
2483         SLIBSUF=".dll"
2484         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2485         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2486         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2487         objformat="win32"
2488         enable dos_paths
2489         check_cflags -fno-common
2490         add_cppflags -U__STRICT_ANSI__
2491         ;;
2492     *-dos|freedos|opendos)
2493         network_extralibs="-lsocket"
2494         objformat="coff"
2495         enable dos_paths
2496         add_cppflags -U__STRICT_ANSI__
2497         ;;
2498     linux)
2499         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2500         enable dv1394
2501         ;;
2502     irix*)
2503         target_os=irix
2504         ranlib="echo ignoring ranlib"
2505         ;;
2506     os/2*)
2507         ln_s="cp -f"
2508         objformat="aout"
2509         add_cppflags -D_GNU_SOURCE
2510         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2511         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2512         AVSERVERLDFLAGS=""
2513         LIBSUF="_s.a"
2514         SLIBPREF=""
2515         SLIBSUF=".dll"
2516         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2517         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2518         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2519           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2520           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2521           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2522           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2523           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2524         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2525           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2526         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2527         enable dos_paths
2528         ;;
2529     gnu/kfreebsd)
2530         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2531         ;;
2532     gnu)
2533         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2534         ;;
2535     qnx)
2536         add_cppflags -D_QNX_SOURCE
2537         network_extralibs="-lsocket"
2538         ;;
2539     symbian)
2540         SLIBSUF=".dll"
2541         enable dos_paths
2542         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2543         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2544         add_ldflags -Wl,--target1-abs,--no-undefined \
2545                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2546                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2547         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2548                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2549                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2550         ;;
2551     none)
2552         ;;
2553     *)
2554         die "Unknown OS '$target_os'."
2555         ;;
2556 esac
2557
2558 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2559
2560 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2561
2562 set_default $PATHS_LIST
2563
2564 # we need to build at least one lib type
2565 if ! enabled_any static shared; then
2566     cat <<EOF
2567 At least one library type must be built.
2568 Specify --enable-static to build the static libraries or --enable-shared to
2569 build the shared libraries as well. To only build the shared libraries specify
2570 --disable-static in addition to --enable-shared.
2571 EOF
2572     exit 1;
2573 fi
2574
2575 die_license_disabled() {
2576     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2577 }
2578
2579 die_license_disabled gpl libcdio
2580 die_license_disabled gpl libx264
2581 die_license_disabled gpl libxavs
2582 die_license_disabled gpl libxvid
2583 die_license_disabled gpl x11grab
2584
2585 die_license_disabled nonfree libfaac
2586 die_license_disabled nonfree openssl
2587
2588 die_license_disabled version3 libopencore_amrnb
2589 die_license_disabled version3 libopencore_amrwb
2590 die_license_disabled version3 libvo_aacenc
2591 die_license_disabled version3 libvo_amrwbenc
2592
2593 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2594
2595 disabled optimizations || check_cflags -fomit-frame-pointer
2596
2597 enable_pic() {
2598     enable pic
2599     add_cppflags -DPIC
2600     add_cflags   -fPIC
2601     add_asflags  -fPIC
2602 }
2603
2604 enabled pic && enable_pic
2605
2606 check_cc <<EOF || die "Symbol mangling check failed."
2607 int ff_extern;
2608 EOF
2609 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2610 extern_prefix=${sym%%ff_extern*}
2611
2612 check_cc <<EOF && enable inline_asm
2613 void foo(void) { __asm__ volatile ("" ::); }
2614 EOF
2615
2616 _restrict=
2617 for restrict_keyword in restrict __restrict__ __restrict; do
2618     check_cc <<EOF && _restrict=$restrict_keyword && break
2619 void foo(char * $restrict_keyword p);
2620 EOF
2621 done
2622
2623 check_cc <<EOF && enable attribute_packed
2624 struct { int x; } __attribute__((packed)) x;
2625 EOF
2626
2627 check_cc <<EOF && enable attribute_may_alias
2628 union { int x; } __attribute__((may_alias)) x;
2629 EOF
2630
2631 check_cc <<EOF || die "endian test failed"
2632 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2633 EOF
2634 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2635
2636 if enabled alpha; then
2637
2638     check_cflags -mieee
2639
2640 elif enabled arm; then
2641
2642     enabled thumb && check_cflags -mthumb || check_cflags -marm
2643     nogas=die
2644
2645     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2646         enable vfp_args
2647     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2648         case "${cross_prefix:-$cc}" in
2649             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2650             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2651 __asm__ (".eabi_attribute 28, 1");
2652 int main(void) { return 0; }
2653 EOF
2654         esac
2655         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2656     fi
2657
2658     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2659     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2660     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2661     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2662     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2663     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2664     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2665
2666     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2667
2668     enabled_all armv6t2 shared !pic && enable_pic
2669
2670 elif enabled mips; then
2671
2672     check_asm loongson '"dmult.g $1, $2, $3"'
2673     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2674
2675 elif enabled ppc; then
2676
2677     enable local_aligned_8 local_aligned_16
2678
2679     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2680     check_asm ibm_asm   '"add 0, 0, 0"'
2681     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2682     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2683
2684     # AltiVec flags: The FSF version of GCC differs from the Apple version
2685     if enabled altivec; then
2686         nogas=warn
2687         check_cflags -maltivec -mabi=altivec &&
2688         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2689         check_cflags -faltivec
2690
2691         # check if our compiler supports Motorola AltiVec C API
2692         check_cc <<EOF || disable altivec
2693 $inc_altivec_h
2694 int main(void) {
2695     vector signed int v1, v2, v3;
2696     v1 = vec_add(v2,v3);
2697     return 0;
2698 }
2699 EOF
2700
2701         # check if our compiler supports braces for vector declarations
2702         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2703 $inc_altivec_h
2704 int main (void) { (vector int) {1}; return 0; }
2705 EOF
2706     fi
2707
2708 elif enabled sparc; then
2709
2710     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2711         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2712
2713 elif enabled x86; then
2714
2715     enable local_aligned_8 local_aligned_16
2716
2717     # check whether EBP is available on x86
2718     # As 'i' is stored on the stack, this program will crash
2719     # if the base pointer is used to access it because the
2720     # base pointer is cleared in the inline assembly code.
2721     check_exec_crash <<EOF && enable ebp_available
2722     volatile int i=0;
2723     __asm__ volatile (
2724         "xorl %%ebp, %%ebp"
2725     ::: "%ebp");
2726     return i;
2727 EOF
2728
2729     # check whether EBX is available on x86
2730     check_asm ebx_available '""::"b"(0)' &&
2731         check_asm ebx_available '"":::"%ebx"'
2732
2733     # check whether xmm clobbers are supported
2734     check_asm xmm_clobbers '"":::"%xmm0"'
2735
2736     # check whether binutils is new enough to compile SSSE3/MMX2
2737     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2738     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2739
2740     check_asm bswap '"bswap %%eax" ::: "%eax"'
2741
2742     if ! disabled_any asm mmx yasm; then
2743         if check_cmd $yasmexe --version; then
2744             enabled x86_64 && yasm_extra="-m amd64"
2745             yasm_debug="-g dwarf2"
2746         elif check_cmd nasm -v; then
2747             yasmexe=nasm
2748             yasm_debug="-g -F dwarf"
2749             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2750         fi
2751
2752         YASMFLAGS="-f $objformat $yasm_extra"
2753         enabled pic               && append YASMFLAGS "-DPIC"
2754         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2755         case "$objformat" in
2756             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2757         esac
2758
2759         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2760             die "yasm not found, use --disable-yasm for a crippled build"
2761         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2762     fi
2763
2764     case "$cpu" in
2765         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2766             disable fast_clz
2767         ;;
2768     esac
2769
2770 fi
2771
2772 if enabled asm; then
2773     as=${gas:=$as}
2774     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2775         $nogas "GNU assembler not found, install gas-preprocessor"
2776 fi
2777
2778 check_ldflags -Wl,--as-needed
2779
2780 if check_func dlopen; then
2781     ldl=
2782 elif check_func dlopen -ldl; then
2783     ldl=-ldl
2784 fi
2785
2786 if enabled network; then
2787     check_type "sys/types.h sys/socket.h" socklen_t
2788     check_type netdb.h "struct addrinfo"
2789     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2790     check_type netinet/in.h "struct sockaddr_in6"
2791     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2792     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2793     # Prefer arpa/inet.h over winsock2
2794     if check_header arpa/inet.h ; then
2795         check_func closesocket
2796     elif check_header winsock2.h ; then
2797         check_func_headers winsock2.h closesocket -lws2 && \
2798             network_extralibs="-lws2" || \
2799         { check_func_headers winsock2.h closesocket -lws2_32 && \
2800             network_extralibs="-lws2_32"; }
2801         check_type ws2tcpip.h socklen_t
2802         check_type ws2tcpip.h "struct addrinfo"
2803         check_type ws2tcpip.h "struct ipv6_mreq"
2804         check_type ws2tcpip.h "struct sockaddr_in6"
2805         check_type ws2tcpip.h "struct sockaddr_storage"
2806         check_struct winsock2.h "struct sockaddr" sa_len
2807     else
2808         disable network
2809     fi
2810 fi
2811
2812 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2813 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2814
2815 check_func  fcntl
2816 check_func  fork
2817 check_func  getaddrinfo $network_extralibs
2818 check_func  gethrtime
2819 check_func  getrusage
2820 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2821 check_func  inet_aton $network_extralibs
2822 check_func  isatty
2823 check_func  localtime_r
2824 check_func  ${malloc_prefix}memalign            && enable memalign
2825 check_func  mkstemp
2826 check_func  mmap
2827 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2828 check_func  setrlimit
2829 check_func  strerror_r
2830 check_func  strptime
2831 check_func  strtok_r
2832 check_func_headers io.h setmode
2833 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2834 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2835 check_func_headers windows.h GetProcessTimes
2836 check_func_headers windows.h MapViewOfFile
2837 check_func_headers windows.h VirtualAlloc
2838
2839 check_header dlfcn.h
2840 check_header dxva2api.h
2841 check_header malloc.h
2842 check_header poll.h
2843 check_header sys/mman.h
2844 check_header sys/resource.h
2845 check_header sys/select.h
2846 check_header vdpau/vdpau.h
2847 check_header vdpau/vdpau_x11.h
2848 check_header X11/extensions/XvMClib.h
2849
2850 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2851
2852 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2853 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2854
2855 # check for some common methods of building with pthread support
2856 # do this before the optional library checks as some of them require pthreads
2857 if ! disabled pthreads && ! enabled w32threads; then
2858     enable pthreads
2859     if check_func pthread_create; then
2860         :
2861     elif check_func pthread_create -pthread; then
2862         add_cflags -pthread
2863         add_extralibs -pthread
2864     elif check_func pthread_create -pthreads; then
2865         add_cflags -pthreads
2866         add_extralibs -pthreads
2867     elif check_func pthread_create -lpthreadGC2; then
2868         add_extralibs -lpthreadGC2
2869     elif ! check_lib pthread.h pthread_create -lpthread; then
2870         disable pthreads
2871     fi
2872 fi
2873
2874 for thread in $THREADS_LIST; do
2875     if enabled $thread; then
2876         test -n "$thread_type" &&
2877             die "ERROR: Only one thread type must be selected." ||
2878             thread_type="$thread"
2879     fi
2880 done
2881
2882 check_lib math.h sin -lm && LIBM="-lm"
2883 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2884
2885 check_mathfunc exp2
2886 check_mathfunc exp2f
2887 check_mathfunc llrint
2888 check_mathfunc llrintf
2889 check_mathfunc log2
2890 check_mathfunc log2f
2891 check_mathfunc lrint
2892 check_mathfunc lrintf
2893 check_mathfunc round
2894 check_mathfunc roundf
2895 check_mathfunc trunc
2896 check_mathfunc truncf
2897
2898 # these are off by default, so fail if requested and not available
2899 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2900 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2901 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2902 enabled libdirac   && require_pkg_config dirac                          \
2903     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2904     "dirac_decoder_init dirac_encoder_init"
2905 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2906 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2907 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2908 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2909 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2910 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2911 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2912 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2913 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2914 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2915 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2916 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2917 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2918 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2919 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2920 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2921 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2922 enabled libvpx     && {
2923     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2924                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2925     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2926                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2927 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2928                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2929                         die "ERROR: libx264 version must be >= 0.118."; }
2930 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2931 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2932 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2933 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2934                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2935                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2936                         die "ERROR: openssl not found"; }
2937
2938 # libdc1394 check
2939 if enabled libdc1394; then
2940     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2941         enable libdc1394_2; } ||
2942     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2943         enable libdc1394_1; } ||
2944     die "ERROR: No version of libdc1394 found "
2945 fi
2946
2947 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2948     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2949     enable sdl &&
2950     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2951 fi
2952
2953 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2954
2955 check_header linux/fb.h
2956 check_header linux/videodev.h
2957 check_header linux/videodev2.h
2958 check_header sys/videoio.h
2959
2960 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2961 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2962 # w32api 3.12 had it defined wrong
2963 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2964
2965 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2966 { check_header dev/bktr/ioctl_meteor.h &&
2967   check_header dev/bktr/ioctl_bt848.h; } ||
2968 { check_header machine/ioctl_meteor.h &&
2969   check_header machine/ioctl_bt848.h; } ||
2970 { check_header dev/video/meteor/ioctl_meteor.h &&
2971   check_header dev/video/bktr/ioctl_bt848.h; } ||
2972 check_header dev/ic/bt8xx.h
2973
2974 check_header sndio.h
2975 check_header sys/soundcard.h
2976 check_header soundcard.h
2977
2978 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2979
2980 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2981
2982 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2983
2984 enabled libcdio &&
2985     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2986
2987 enabled x11grab                         &&
2988 check_header X11/Xlib.h                 &&
2989 check_header X11/extensions/XShm.h      &&
2990 check_header X11/extensions/Xfixes.h    &&
2991 check_func XOpenDisplay -lX11           &&
2992 check_func XShmCreateImage -lX11 -lXext &&
2993 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2994
2995 # check for VDA header
2996 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
2997     enable vda && add_ldflags -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
2998 fi
2999
3000 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3001 check_cpp_condition \
3002     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3003     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3004       disable vdpau; }
3005 fi
3006
3007 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3008
3009 # add some useful compiler flags if supported
3010 check_cflags -Wdeclaration-after-statement
3011 check_cflags -Wall
3012 check_cflags -Wno-parentheses
3013 check_cflags -Wno-switch
3014 check_cflags -Wno-format-zero-length
3015 check_cflags -Wdisabled-optimization
3016 check_cflags -Wpointer-arith
3017 check_cflags -Wredundant-decls
3018 check_cflags -Wno-pointer-sign
3019 check_cflags -Wcast-qual
3020 check_cflags -Wwrite-strings
3021 check_cflags -Wtype-limits
3022 check_cflags -Wundef
3023 check_cflags -Wmissing-prototypes
3024 check_cflags -Wstrict-prototypes
3025 enabled extra_warnings && check_cflags -Winline
3026
3027 # add some linker flags
3028 check_ldflags -Wl,--warn-common
3029 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3030 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3031
3032 echo "X{};" > $TMPV
3033 if test_ldflags -Wl,--version-script,$TMPV; then
3034     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3035     check_cc <<EOF && enable symver_asm_label
3036 void ff_foo(void) __asm__ ("av_foo@VERSION");
3037 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3038 EOF
3039     check_cc <<EOF && enable symver_gnu_asm
3040 __asm__(".symver ff_foo,av_foo@VERSION");
3041 void ff_foo(void) {}
3042 EOF
3043 fi
3044
3045 if [ -n "$optflags" ]; then
3046     add_cflags $optflags
3047 elif enabled small; then
3048     add_cflags $size_cflags
3049 elif enabled optimizations; then
3050     add_cflags $speed_cflags
3051 else
3052     add_cflags $noopt_cflags
3053 fi
3054 check_cflags -fno-math-errno
3055 check_cflags -fno-signed-zeros
3056
3057 if enabled icc; then
3058     # Just warnings, no remarks
3059     check_cflags -w1
3060     # -wd: Disable following warnings
3061     # 144, 167, 556: -Wno-pointer-sign
3062     # 1292: attribute "foo" ignored
3063     # 10006: ignoring unknown option -fno-signed-zeros
3064     # 10148: ignoring unknown option -Wno-parentheses
3065     # 10156: ignoring option '-W'; no argument required
3066     check_cflags -wd144,167,556,1292,10006,10148,10156
3067     # 11030: Warning unknown option --as-needed
3068     # 10156: ignoring option '-export'; no argument required
3069     check_ldflags -wd10156,11030
3070     # Allow to compile with optimizations
3071     check_ldflags -march=$cpu
3072     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3073     enable ebp_available
3074     if enabled x86_32; then
3075         test ${icc_version%%.*} -ge 11 && \
3076             check_cflags -falign-stack=maintain-16-byte || \
3077             disable aligned_stack
3078     fi
3079 elif enabled ccc; then
3080     # disable some annoying warnings
3081     add_cflags -msg_disable cvtu32to64
3082     add_cflags -msg_disable embedcomment
3083     add_cflags -msg_disable needconstext
3084     add_cflags -msg_disable nomainieee
3085     add_cflags -msg_disable ptrmismatch1
3086     add_cflags -msg_disable unreachcode
3087 elif enabled gcc; then
3088     check_cflags -fno-tree-vectorize
3089     check_cflags -Werror=implicit-function-declaration
3090     check_cflags -Werror=missing-prototypes
3091 elif enabled llvm_gcc; then
3092     check_cflags -mllvm -stack-alignment=16
3093 elif enabled clang; then
3094     check_cflags -mllvm -stack-alignment=16
3095     check_cflags -Qunused-arguments
3096 elif enabled armcc; then
3097     # 2523: use of inline assembler is deprecated
3098     add_cflags -W${armcc_opt},--diag_suppress=2523
3099     add_cflags -W${armcc_opt},--diag_suppress=1207
3100     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3101     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3102     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3103     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3104 elif enabled tms470; then
3105     add_cflags -pds=824 -pds=837
3106 elif enabled pathscale; then
3107     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3108 fi
3109
3110 enabled_any $THREADS_LIST      && enable threads
3111
3112 check_deps $CONFIG_LIST       \
3113            $CONFIG_EXTRA      \
3114            $HAVE_LIST         \
3115            $DECODER_LIST      \
3116            $ENCODER_LIST      \
3117            $HWACCEL_LIST      \
3118            $PARSER_LIST       \
3119            $BSF_LIST          \
3120            $DEMUXER_LIST      \
3121            $MUXER_LIST        \
3122            $FILTER_LIST       \
3123            $INDEV_LIST        \
3124            $OUTDEV_LIST       \
3125            $PROTOCOL_LIST     \
3126            $ACODEC_TESTS      \
3127            $VCODEC_TESTS      \
3128            $LAVF_TESTS        \
3129            $LAVFI_TESTS       \
3130            $SEEK_TESTS        \
3131
3132 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3133
3134 ! enabled_any memalign posix_memalign malloc_aligned &&
3135     enabled_any $need_memalign && enable memalign_hack
3136
3137 echo "install prefix            $prefix"
3138 echo "source path               $source_path"
3139 echo "C compiler                $cc"
3140 echo "ARCH                      $arch ($cpu)"
3141 if test "$build_suffix" != ""; then
3142     echo "build suffix              $build_suffix"
3143 fi
3144 if test "$extra_version" != ""; then
3145     echo "version string suffix     $extra_version"
3146 fi
3147 echo "big-endian                ${bigendian-no}"
3148 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3149 if enabled x86; then
3150     echo "${yasmexe}                      ${yasm-no}"
3151     echo "MMX enabled               ${mmx-no}"
3152     echo "MMX2 enabled              ${mmx2-no}"
3153     echo "3DNow! enabled            ${amd3dnow-no}"
3154     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3155     echo "SSE enabled               ${sse-no}"
3156     echo "SSSE3 enabled             ${ssse3-no}"
3157     echo "AVX enabled               ${avx-no}"
3158     echo "CMOV enabled              ${cmov-no}"
3159     echo "CMOV is fast              ${fast_cmov-no}"
3160     echo "EBX available             ${ebx_available-no}"
3161     echo "EBP available             ${ebp_available-no}"
3162 fi
3163 if enabled arm; then
3164     echo "ARMv5TE enabled           ${armv5te-no}"
3165     echo "ARMv6 enabled             ${armv6-no}"
3166     echo "ARMv6T2 enabled           ${armv6t2-no}"
3167     echo "ARM VFP enabled           ${armvfp-no}"
3168     echo "IWMMXT enabled            ${iwmmxt-no}"
3169     echo "NEON enabled              ${neon-no}"
3170 fi
3171 if enabled mips; then
3172     echo "MMI enabled               ${mmi-no}"
3173 fi
3174 if enabled ppc; then
3175     echo "AltiVec enabled           ${altivec-no}"
3176     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3177     echo "dcbzl available           ${dcbzl-no}"
3178 fi
3179 if enabled sparc; then
3180     echo "VIS enabled               ${vis-no}"
3181 fi
3182 echo "debug symbols             ${debug-no}"
3183 echo "optimize for size         ${small-no}"
3184 echo "optimizations             ${optimizations-no}"
3185 echo "static                    ${static-no}"
3186 echo "shared                    ${shared-no}"
3187 echo "postprocessing support    ${postproc-no}"
3188 echo "new filter support        ${avfilter-no}"
3189 echo "network support           ${network-no}"
3190 echo "threading support         ${thread_type-no}"
3191 echo "SDL support               ${sdl-no}"
3192 echo "Sun medialib support      ${mlib-no}"
3193 echo "libdxva2 enabled          ${dxva2-no}"
3194 echo "libva enabled             ${vaapi-no}"
3195 echo "libvdpau enabled          ${vdpau-no}"
3196 echo "AVISynth enabled          ${avisynth-no}"
3197 echo "frei0r enabled            ${frei0r-no}"
3198 echo "gnutls enabled            ${gnutls-no}"
3199 echo "libcdio support           ${libcdio-no}"
3200 echo "libdc1394 support         ${libdc1394-no}"
3201 echo "libdirac enabled          ${libdirac-no}"
3202 echo "libfaac enabled           ${libfaac-no}"
3203 echo "libgsm enabled            ${libgsm-no}"
3204 echo "libmp3lame enabled        ${libmp3lame-no}"
3205 echo "libnut enabled            ${libnut-no}"
3206 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3207 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3208 echo "libopencv support         ${libopencv-no}"
3209 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3210 echo "libpulse enabled          ${libpulse-no}"
3211 echo "librtmp enabled           ${librtmp-no}"
3212 echo "libschroedinger enabled   ${libschroedinger-no}"
3213 echo "libspeex enabled          ${libspeex-no}"
3214 echo "libtheora enabled         ${libtheora-no}"
3215 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3216 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3217 echo "libvorbis enabled         ${libvorbis-no}"
3218 echo "libvpx enabled            ${libvpx-no}"
3219 echo "libx264 enabled           ${libx264-no}"
3220 echo "libxavs enabled           ${libxavs-no}"
3221 echo "libxvid enabled           ${libxvid-no}"
3222 echo "openssl enabled           ${openssl-no}"
3223 echo "zlib enabled              ${zlib-no}"
3224 echo "bzlib enabled             ${bzlib-no}"
3225 echo
3226
3227 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3228     echo "Enabled ${type}s:"
3229     eval list=\$$(toupper $type)_LIST
3230     print_enabled '_*' $list | sort | pr -r -3 -t
3231     echo
3232 done
3233
3234 license="LGPL version 2.1 or later"
3235 if enabled nonfree; then
3236     license="nonfree and unredistributable"
3237 elif enabled gplv3; then
3238     license="GPL version 3 or later"
3239 elif enabled lgplv3; then
3240     license="LGPL version 3 or later"
3241 elif enabled gpl; then
3242     license="GPL version 2 or later"
3243 fi
3244
3245 echo "License: $license"
3246
3247 echo "Creating config.mak and config.h..."
3248
3249 test -e Makefile || $ln_s "$source_path/Makefile" .
3250
3251 config_files="$TMPH config.mak"
3252
3253 cat > config.mak <<EOF
3254 # Automatically generated by configure - do not modify!
3255 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3256 prefix=$prefix
3257 LIBDIR=\$(DESTDIR)$libdir
3258 SHLIBDIR=\$(DESTDIR)$shlibdir
3259 INCDIR=\$(DESTDIR)$incdir
3260 BINDIR=\$(DESTDIR)$bindir
3261 DATADIR=\$(DESTDIR)$datadir
3262 MANDIR=\$(DESTDIR)$mandir
3263 SRC_PATH=$source_path
3264 CC_IDENT=$cc_ident
3265 ARCH=$arch
3266 CC=$cc
3267 AS=$as
3268 LD=$ld
3269 DEPCC=$dep_cc
3270 YASM=$yasmexe
3271 YASMDEP=$yasmexe
3272 AR=$ar
3273 RANLIB=$ranlib
3274 LN_S=$ln_s
3275 CPPFLAGS=$CPPFLAGS
3276 CFLAGS=$CFLAGS
3277 ASFLAGS=$ASFLAGS
3278 AS_O=$CC_O
3279 CC_O=$CC_O
3280 DLLTOOL=$dlltool
3281 LDFLAGS=$LDFLAGS
3282 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3283 SHFLAGS=$SHFLAGS
3284 YASMFLAGS=$YASMFLAGS
3285 BUILDSUF=$build_suffix
3286 FULLNAME=$FULLNAME
3287 LIBPREF=$LIBPREF
3288 LIBSUF=$LIBSUF
3289 LIBNAME=$LIBNAME
3290 SLIBPREF=$SLIBPREF
3291 SLIBSUF=$SLIBSUF
3292 EXESUF=$EXESUF
3293 EXTRA_VERSION=$extra_version
3294 DEPFLAGS=$DEPFLAGS
3295 CCDEP=$CCDEP
3296 ASDEP=$ASDEP
3297 CC_DEPFLAGS=$CC_DEPFLAGS
3298 AS_DEPFLAGS=$AS_DEPFLAGS
3299 HOSTCC=$host_cc
3300 HOSTCFLAGS=$host_cflags
3301 HOSTEXESUF=$HOSTEXESUF
3302 HOSTLDFLAGS=$host_ldflags
3303 HOSTLIBS=$host_libs
3304 TARGET_EXEC=$target_exec
3305 TARGET_PATH=$target_path
3306 SDL_LIBS=$sdl_libs
3307 SDL_CFLAGS=$sdl_cflags
3308 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3309 EXTRALIBS=$extralibs
3310 INSTALL=install
3311 LIBTARGET=${LIBTARGET}
3312 SLIBNAME=${SLIBNAME}
3313 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3314 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3315 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3316 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3317 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3318 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3319 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3320 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3321 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3322 EOF
3323
3324 get_version(){
3325     name=$1
3326     file=$source_path/$2
3327     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3328     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3329     lcname=$(tolower $name)
3330     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3331     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3332 }
3333
3334 get_version LIBSWSCALE  libswscale/swscale.h
3335 get_version LIBPOSTPROC libpostproc/postprocess.h
3336 get_version LIBAVCODEC  libavcodec/version.h
3337 get_version LIBAVDEVICE libavdevice/avdevice.h
3338 get_version LIBAVFORMAT libavformat/version.h
3339 get_version LIBAVUTIL   libavutil/avutil.h
3340 get_version LIBAVFILTER libavfilter/avfilter.h
3341
3342 cat > $TMPH <<EOF
3343 /* Automatically generated by configure - do not modify! */
3344 #ifndef LIBAV_CONFIG_H
3345 #define LIBAV_CONFIG_H
3346 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3347 #define LIBAV_LICENSE "$(c_escape $license)"
3348 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3349 #define CC_TYPE "$cc_type"
3350 #define CC_VERSION $cc_version
3351 #define restrict $_restrict
3352 #define EXTERN_PREFIX "${extern_prefix}"
3353 #define EXTERN_ASM ${extern_prefix}
3354 #define SLIBSUF "$SLIBSUF"
3355 EOF
3356
3357 test -n "$malloc_prefix" &&
3358     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3359
3360 if enabled small || disabled optimizations; then
3361     echo "#undef  av_always_inline"  >> $TMPH
3362     if enabled small; then
3363         echo "#define av_always_inline inline"  >> $TMPH
3364     else
3365         echo "#define av_always_inline av_unused"  >> $TMPH
3366     fi
3367 fi
3368
3369 if enabled yasm; then
3370     append config_files $TMPASM
3371     printf '' >$TMPASM
3372 fi
3373
3374 print_config ARCH_   "$config_files" $ARCH_LIST
3375 print_config HAVE_   "$config_files" $HAVE_LIST
3376 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3377                                      $CONFIG_EXTRA      \
3378                                      $DECODER_LIST      \
3379                                      $ENCODER_LIST      \
3380                                      $HWACCEL_LIST      \
3381                                      $PARSER_LIST       \
3382                                      $BSF_LIST          \
3383                                      $DEMUXER_LIST      \
3384                                      $MUXER_LIST        \
3385                                      $FILTER_LIST       \
3386                                      $PROTOCOL_LIST     \
3387                                      $INDEV_LIST        \
3388                                      $OUTDEV_LIST       \
3389
3390 cat >>config.mak <<EOF
3391 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3392 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3393 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3394 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3395 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3396 EOF
3397
3398 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3399
3400 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3401 cp_if_changed $TMPH config.h
3402 touch .config
3403
3404 enabled yasm && cp_if_changed $TMPASM config.asm
3405
3406 cat > $TMPH <<EOF
3407 /* Generated by ffconf */
3408 #ifndef AVUTIL_AVCONFIG_H
3409 #define AVUTIL_AVCONFIG_H
3410 EOF
3411
3412 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3413
3414 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3415
3416 cp_if_changed $TMPH libavutil/avconfig.h
3417
3418 test -n "$WARNINGS" && printf "\n$WARNINGS"
3419
3420 # build pkg-config files
3421
3422 pkgconfig_generate(){
3423 name=$1
3424 shortname=${name#lib}${build_suffix}
3425 comment=$2
3426 version=$3
3427 libs=$4
3428 requires=$5
3429 enabled ${name#lib} || return 0
3430 mkdir -p $name
3431 cat <<EOF > $name/$name.pc
3432 prefix=$prefix
3433 exec_prefix=\${prefix}
3434 libdir=$libdir
3435 includedir=$incdir
3436
3437 Name: $name
3438 Description: $comment
3439 Version: $version
3440 Requires: $(enabled shared || echo $requires)
3441 Requires.private: $(enabled shared && echo $requires)
3442 Conflicts:
3443 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3444 Libs.private: $(enabled shared && echo $libs)
3445 Cflags: -I\${includedir}
3446 EOF
3447 cat <<EOF > $name/$name-uninstalled.pc
3448 prefix=
3449 exec_prefix=
3450 libdir=\${pcfiledir}
3451 includedir=${source_path}
3452
3453 Name: $name
3454 Description: $comment
3455 Version: $version
3456 Requires: $requires
3457 Conflicts:
3458 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3459 Cflags: -I\${includedir}
3460 EOF
3461 }
3462
3463 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3464 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3465 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3466 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3467 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3468 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3469 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"