win32: detect number of CPUs using affinity
[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   --disable-safe-bitstream-reader
117                            disable buffer boundary checking in bitreaders
118                            (faster, but may crash)
119   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
120   --disable-everything     disable all components listed below
121   --disable-encoder=NAME   disable encoder NAME
122   --enable-encoder=NAME    enable encoder NAME
123   --disable-encoders       disable all encoders
124   --disable-decoder=NAME   disable decoder NAME
125   --enable-decoder=NAME    enable decoder NAME
126   --disable-decoders       disable all decoders
127   --disable-hwaccel=NAME   disable hwaccel NAME
128   --enable-hwaccel=NAME    enable hwaccel NAME
129   --disable-hwaccels       disable all hwaccels
130   --disable-muxer=NAME     disable muxer NAME
131   --enable-muxer=NAME      enable muxer NAME
132   --disable-muxers         disable all muxers
133   --disable-demuxer=NAME   disable demuxer NAME
134   --enable-demuxer=NAME    enable demuxer NAME
135   --disable-demuxers       disable all demuxers
136   --enable-parser=NAME     enable parser NAME
137   --disable-parser=NAME    disable parser NAME
138   --disable-parsers        disable all parsers
139   --enable-bsf=NAME        enable bitstream filter NAME
140   --disable-bsf=NAME       disable bitstream filter NAME
141   --disable-bsfs           disable all bitstream filters
142   --enable-protocol=NAME   enable protocol NAME
143   --disable-protocol=NAME  disable protocol NAME
144   --disable-protocols      disable all protocols
145   --disable-indev=NAME     disable input device NAME
146   --disable-outdev=NAME    disable output device NAME
147   --disable-indevs         disable input devices
148   --disable-outdevs        disable output devices
149   --disable-devices        disable all devices
150   --enable-filter=NAME     enable filter NAME
151   --disable-filter=NAME    disable filter NAME
152   --disable-filters        disable all filters
153   --list-decoders          show all available decoders
154   --list-encoders          show all available encoders
155   --list-hwaccels          show all available hardware accelerators
156   --list-muxers            show all available muxers
157   --list-demuxers          show all available demuxers
158   --list-parsers           show all available parsers
159   --list-protocols         show all available protocols
160   --list-bsfs              show all available bitstream filters
161   --list-indevs            show all available input devices
162   --list-outdevs           show all available output devices
163   --list-filters           show all available filters
164
165 External library support:
166   --enable-avisynth        enable reading of AVISynth script files [no]
167   --enable-bzlib           enable bzlib [autodetect]
168   --enable-frei0r          enable frei0r video filtering
169   --enable-gnutls          enable gnutls [no]
170   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
171   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
172   --enable-libopencv       enable video filtering via libopencv [no]
173   --enable-libcdio         enable audio CD grabbing with libcdio
174   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
175                            and libraw1394 [no]
176   --enable-libdirac        enable Dirac support via libdirac [no]
177   --enable-libfaac         enable FAAC support via libfaac [no]
178   --enable-libfreetype     enable libfreetype [no]
179   --enable-libgsm          enable GSM support via libgsm [no]
180   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
181   --enable-libnut          enable NUT (de)muxing via libnut,
182                            native (de)muxer exists [no]
183   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
184   --enable-libpulse        enable Pulseaudio input via libpulse [no]
185   --enable-librtmp         enable RTMP[E] support via librtmp [no]
186   --enable-libschroedinger enable Dirac support via libschroedinger [no]
187   --enable-libspeex        enable Speex support via libspeex [no]
188   --enable-libtheora       enable Theora encoding via libtheora [no]
189   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
190   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
191   --enable-libvorbis       enable Vorbis encoding via libvorbis,
192                            native implementation exists [no]
193   --enable-libvpx          enable VP8 support via libvpx [no]
194   --enable-libx264         enable H.264 encoding via x264 [no]
195   --enable-libxavs         enable AVS encoding via xavs [no]
196   --enable-libxvid         enable Xvid encoding via xvidcore,
197                            native MPEG-4/Xvid encoder exists [no]
198   --enable-mlib            enable Sun medialib [no]
199   --enable-openssl         enable openssl [no]
200   --enable-zlib            enable zlib [autodetect]
201
202 Advanced options (experts only):
203   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
204   --enable-cross-compile   assume a cross-compiler is used
205   --sysroot=PATH           root of cross-build tree
206   --sysinclude=PATH        location of cross-build system headers
207   --target-os=OS           compiler targets OS [$target_os]
208   --target-exec=CMD        command to run executables on target
209   --target-path=DIR        path to view of build directory on target
210   --nm=NM                  use nm tool
211   --ar=AR                  use archive tool AR [$ar_default]
212   --as=AS                  use assembler AS [$as_default]
213   --cc=CC                  use C compiler CC [$cc_default]
214   --ld=LD                  use linker LD
215   --host-cc=HOSTCC         use host C compiler HOSTCC
216   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
217   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
218   --host-libs=HLIBS        use libs HLIBS when linking for host
219   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
220   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
221   --extra-libs=ELIBS       add ELIBS [$ELIBS]
222   --extra-version=STRING   version string suffix []
223   --build-suffix=SUFFIX    library name suffix []
224   --arch=ARCH              select architecture [$arch]
225   --cpu=CPU                select the minimum required CPU (affects
226                            instruction selection, may crash on older CPUs)
227   --disable-asm            disable all assembler optimizations
228   --disable-altivec        disable AltiVec optimizations
229   --disable-amd3dnow       disable 3DNow! optimizations
230   --disable-amd3dnowext    disable 3DNow! extended optimizations
231   --disable-mmx            disable MMX optimizations
232   --disable-mmx2           disable MMX2 optimizations
233   --disable-sse            disable SSE optimizations
234   --disable-ssse3          disable SSSE3 optimizations
235   --disable-avx            disable AVX optimizations
236   --disable-armv5te        disable armv5te optimizations
237   --disable-armv6          disable armv6 optimizations
238   --disable-armv6t2        disable armv6t2 optimizations
239   --disable-armvfp         disable ARM VFP optimizations
240   --disable-iwmmxt         disable iwmmxt optimizations
241   --disable-mmi            disable MMI optimizations
242   --disable-neon           disable neon optimizations
243   --disable-vis            disable VIS optimizations
244   --disable-yasm           disable use of yasm assembler
245   --enable-pic             build position-independent code
246   --malloc-prefix=PFX      prefix malloc and related names with PFX
247   --enable-sram            allow use of on-chip SRAM
248   --disable-symver         disable symbol versioning
249   --optflags               override optimization-related compiler flags
250
251 Developer options (useful when working on Libav itself):
252   --disable-debug          disable debugging symbols
253   --enable-debug=LEVEL     set the debug level [$debuglevel]
254   --disable-optimizations  disable compiler optimizations
255   --enable-extra-warnings  enable more compiler warnings
256   --samples=PATH           location of test samples for FATE, if not set use
257                            \$FATE_SAMPLES at make invocation time.
258
259 NOTE: Object files are built at the place where configure is launched.
260 EOF
261   exit 0
262 }
263
264 quotes='""'
265
266 log(){
267     echo "$@" >> $logfile
268 }
269
270 log_file(){
271     log BEGIN $1
272     pr -n -t $1 >> $logfile
273     log END $1
274 }
275
276 echolog(){
277     log "$@"
278     echo "$@"
279 }
280
281 warn(){
282     log "WARNING: $*"
283     WARNINGS="${WARNINGS}WARNING: $*\n"
284 }
285
286 die(){
287     echolog "$@"
288     cat <<EOF
289
290 If you think configure made a mistake, make sure you are using the latest
291 version from Git.  If the latest version fails, report the problem to the
292 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
293 EOF
294     if disabled logging; then
295         cat <<EOF
296 Rerun configure with logging enabled (do not use --disable-logging), and
297 include the log this produces with your report.
298 EOF
299     else
300 cat <<EOF
301 Include the log file "$logfile" produced by configure as this will help
302 solving the problem.
303 EOF
304     fi
305     exit 1
306 }
307
308 # Avoid locale weirdness, besides we really just want to translate ASCII.
309 toupper(){
310     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
311 }
312
313 tolower(){
314     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
315 }
316
317 c_escape(){
318     echo "$*" | sed 's/["\\]/\\\0/g'
319 }
320
321 sh_quote(){
322     v=$(echo "$1" | sed "s/'/'\\\\''/g")
323     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
324     echo "$v"
325 }
326
327 cleanws(){
328     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
329 }
330
331 filter(){
332     pat=$1
333     shift
334     for v; do
335         eval "case $v in $pat) echo $v ;; esac"
336     done
337 }
338
339 filter_out(){
340     pat=$1
341     shift
342     for v; do
343         eval "case $v in $pat) ;; *) echo $v ;; esac"
344     done
345 }
346
347 map(){
348     m=$1
349     shift
350     for v; do eval $m; done
351 }
352
353 set_all(){
354     value=$1
355     shift
356     for var in $*; do
357         eval $var=$value
358     done
359 }
360
361 set_weak(){
362     value=$1
363     shift
364     for var; do
365         eval : \${$var:=$value}
366     done
367 }
368
369 set_safe(){
370     var=$1
371     shift
372     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
373 }
374
375 get_safe(){
376     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
377 }
378
379 pushvar(){
380     for var in $*; do
381         eval level=\${${var}_level:=0}
382         eval ${var}_${level}="\$$var"
383         eval ${var}_level=$(($level+1))
384     done
385 }
386
387 popvar(){
388     for var in $*; do
389         eval level=\${${var}_level:-0}
390         test $level = 0 && continue
391         eval level=$(($level-1))
392         eval $var="\${${var}_${level}}"
393         eval ${var}_level=$level
394         eval unset ${var}_${level}
395     done
396 }
397
398 enable(){
399     set_all yes $*
400 }
401
402 disable(){
403     set_all no $*
404 }
405
406 enable_weak(){
407     set_weak yes $*
408 }
409
410 disable_weak(){
411     set_weak no $*
412 }
413
414 enable_safe(){
415     for var; do
416         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
417     done
418 }
419
420 disable_safe(){
421     for var; do
422         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
423     done
424 }
425
426 do_enable_deep(){
427     for var; do
428         enabled $var && continue
429         eval sel="\$${var}_select"
430         eval sgs="\$${var}_suggest"
431         pushvar var sgs
432         enable_deep $sel
433         popvar sgs
434         enable_deep_weak $sgs
435         popvar var
436     done
437 }
438
439 enable_deep(){
440     do_enable_deep $*
441     enable $*
442 }
443
444 enable_deep_weak(){
445     do_enable_deep $*
446     enable_weak $*
447 }
448
449 enabled(){
450     test "${1#!}" = "$1" && op== || op=!=
451     eval test "x\$${1#!}" $op "xyes"
452 }
453
454 disabled(){
455     test "${1#!}" = "$1" && op== || op=!=
456     eval test "x\$${1#!}" $op "xno"
457 }
458
459 enabled_all(){
460     for opt; do
461         enabled $opt || return 1
462     done
463 }
464
465 disabled_all(){
466     for opt; do
467         disabled $opt || return 1
468     done
469 }
470
471 enabled_any(){
472     for opt; do
473         enabled $opt && return 0
474     done
475 }
476
477 disabled_any(){
478     for opt; do
479         disabled $opt && return 0
480     done
481     return 1
482 }
483
484 set_default(){
485     for opt; do
486         eval : \${$opt:=\$${opt}_default}
487     done
488 }
489
490 is_in(){
491     value=$1
492     shift
493     for var in $*; do
494         [ $var = $value ] && return 0
495     done
496     return 1
497 }
498
499 check_deps(){
500     for cfg; do
501         cfg="${cfg#!}"
502         enabled ${cfg}_checking && die "Circular dependency for $cfg."
503         disabled ${cfg}_checking && continue
504         enable ${cfg}_checking
505
506         eval dep_all="\$${cfg}_deps"
507         eval dep_any="\$${cfg}_deps_any"
508         eval dep_sel="\$${cfg}_select"
509         eval dep_sgs="\$${cfg}_suggest"
510         eval dep_ifa="\$${cfg}_if"
511         eval dep_ifn="\$${cfg}_if_any"
512
513         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
514         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
515         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
516
517         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
518         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
519         enabled_all  $dep_all || disable $cfg
520         enabled_any  $dep_any || disable $cfg
521         disabled_any $dep_sel && disable $cfg
522
523         if enabled $cfg; then
524             eval dep_extralibs="\$${cfg}_extralibs"
525             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
526             enable_deep $dep_sel
527             enable_deep_weak $dep_sgs
528         fi
529
530         disable ${cfg}_checking
531     done
532 }
533
534 print_config_h(){
535     enabled $1 && v=1 || v=0
536     echo "#define $2 $v"
537 }
538
539 print_config_mak(){
540     enabled $1 && v= || v=!
541     echo "$v$2=yes"
542 }
543
544 print_config_asm(){
545     enabled $1 && echo "%define $2"
546 }
547
548 print_config(){
549     pfx=$1
550     files=$2
551     shift 2
552     for cfg; do
553         ucname="$(toupper $cfg)"
554         for f in $files; do
555             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
556         done
557     done
558 }
559
560 print_enabled(){
561     test "$1" = -n && end=" " && shift || end="\n"
562     suf=$1
563     shift
564     for v; do
565         enabled $v && printf "%s$end" ${v%$suf};
566     done
567 }
568
569 append(){
570     var=$1
571     shift
572     eval "$var=\"\$$var $*\""
573 }
574
575 prepend(){
576     var=$1
577     shift
578     eval "$var=\"$* \$$var\""
579 }
580
581 add_cppflags(){
582     append CPPFLAGS $($filter_cppflags "$@")
583 }
584
585 add_cflags(){
586     append CFLAGS $($filter_cflags "$@")
587 }
588
589 add_asflags(){
590     append ASFLAGS $($filter_asflags "$@")
591 }
592
593 add_ldflags(){
594     append LDFLAGS "$@"
595 }
596
597 add_extralibs(){
598     prepend extralibs "$@"
599 }
600
601 check_cmd(){
602     log "$@"
603     "$@" >> $logfile 2>&1
604 }
605
606 check_cc(){
607     log check_cc "$@"
608     cat > $TMPC
609     log_file $TMPC
610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
611 }
612
613 check_cpp(){
614     log check_cpp "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
618 }
619
620 check_as(){
621     log check_as "$@"
622     cat > $TMPC
623     log_file $TMPC
624     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
625 }
626
627 check_asm(){
628     log check_asm "$@"
629     name="$1"
630     code="$2"
631     shift 2
632     disable $name
633     check_as "$@" <<EOF && enable $name
634 void foo(void){ __asm__ volatile($code); }
635 EOF
636 }
637
638 check_yasm(){
639     log check_yasm "$@"
640     echo "$1" > $TMPS
641     log_file $TMPS
642     shift 1
643     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
644 }
645
646 check_ld(){
647     log check_ld "$@"
648     flags=''
649     libs=''
650     for f; do
651         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
652     done
653     check_cc $($filter_cflags $flags) || return
654     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
655 }
656
657 check_cppflags(){
658     log check_cppflags "$@"
659     set -- $($filter_cppflags "$@")
660     check_cc "$@" <<EOF && append CPPFLAGS "$@"
661 int x;
662 EOF
663 }
664
665 check_cflags(){
666     log check_cflags "$@"
667     set -- $($filter_cflags "$@")
668     check_cc "$@" <<EOF && append CFLAGS "$@"
669 int x;
670 EOF
671 }
672
673 test_ldflags(){
674     log test_ldflags "$@"
675     check_ld "$@" <<EOF
676 int main(void){ return 0; }
677 EOF
678 }
679
680 check_ldflags(){
681     log check_ldflags "$@"
682     test_ldflags "$@" && add_ldflags "$@"
683 }
684
685 check_header(){
686     log check_header "$@"
687     header=$1
688     shift
689     disable_safe $header
690     check_cpp "$@" <<EOF && enable_safe $header
691 #include <$header>
692 int x;
693 EOF
694 }
695
696 check_func(){
697     log check_func "$@"
698     func=$1
699     shift
700     disable $func
701     check_ld "$@" <<EOF && enable $func
702 extern int $func();
703 int main(void){ $func(); }
704 EOF
705 }
706
707 check_mathfunc(){
708     log check_mathfunc "$@"
709     func=$1
710     shift
711     disable $func
712     check_ld "$@" <<EOF && enable $func
713 #include <math.h>
714 float foo(float f) { return $func(f); }
715 int main(void){ return 0; }
716 EOF
717 }
718
719 check_func_headers(){
720     log check_func_headers "$@"
721     headers=$1
722     funcs=$2
723     shift 2
724     {
725         for hdr in $headers; do
726             echo "#include <$hdr>"
727         done
728         for func in $funcs; do
729             echo "long check_$func(void) { return (long) $func; }"
730         done
731         echo "int main(void) { return 0; }"
732     } | check_ld "$@" && enable $funcs && enable_safe $headers
733 }
734
735 check_cpp_condition(){
736     log check_cpp_condition "$@"
737     header=$1
738     condition=$2
739     shift 2
740     check_cpp $($filter_cppflags "$@") <<EOF
741 #include <$header>
742 #if !($condition)
743 #error "unsatisfied condition: $condition"
744 #endif
745 EOF
746 }
747
748 check_lib(){
749     log check_lib "$@"
750     header="$1"
751     func="$2"
752     shift 2
753     check_header $header && check_func $func "$@" && add_extralibs "$@"
754 }
755
756 check_lib2(){
757     log check_lib2 "$@"
758     headers="$1"
759     funcs="$2"
760     shift 2
761     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
762 }
763
764 check_pkg_config(){
765     log check_pkg_config "$@"
766     pkg="$1"
767     headers="$2"
768     funcs="$3"
769     shift 3
770     $pkg_config --exists $pkg || return
771     pkg_cflags=$($pkg_config --cflags $pkg)
772     pkg_libs=$($pkg_config --libs $pkg)
773     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
774         set_safe ${pkg}_cflags $pkg_cflags   &&
775         set_safe ${pkg}_libs   $pkg_libs
776 }
777
778 check_exec(){
779     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
780 }
781
782 check_exec_crash(){
783     code=$(cat)
784
785     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
786     # are safe but may not be available everywhere.  Thus we use
787     # raise(SIGTERM) instead.  The check is run in a subshell so we
788     # can redirect the "Terminated" message from the shell.  SIGBUS
789     # is not defined by standard C so it is used conditionally.
790
791     (check_exec "$@") >> $logfile 2>&1 <<EOF
792 #include <signal.h>
793 static void sighandler(int sig){
794     raise(SIGTERM);
795 }
796 int main(void){
797     signal(SIGILL, sighandler);
798     signal(SIGFPE, sighandler);
799     signal(SIGSEGV, sighandler);
800 #ifdef SIGBUS
801     signal(SIGBUS, sighandler);
802 #endif
803     { $code }
804 }
805 EOF
806 }
807
808 check_type(){
809     log check_type "$@"
810     headers=$1
811     type=$2
812     shift 2
813     disable_safe "$type"
814     incs=""
815     for hdr in $headers; do
816         incs="$incs
817 #include <$hdr>"
818     done
819     check_cc "$@" <<EOF && enable_safe "$type"
820 $incs
821 $type v;
822 EOF
823 }
824
825 check_struct(){
826     log check_type "$@"
827     headers=$1
828     struct=$2
829     member=$3
830     shift 3
831     disable_safe "${struct}_${member}"
832     incs=""
833     for hdr in $headers; do
834         incs="$incs
835 #include <$hdr>"
836     done
837     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
838 $incs
839 const void *p = &(($struct *)0)->$member;
840 EOF
841 }
842
843 require(){
844     name="$1"
845     header="$2"
846     func="$3"
847     shift 3
848     check_lib $header $func "$@" || die "ERROR: $name not found"
849 }
850
851 require2(){
852     name="$1"
853     headers="$2"
854     func="$3"
855     shift 3
856     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
857 }
858
859 require_pkg_config(){
860     pkg="$1"
861     check_pkg_config "$@" || die "ERROR: $pkg not found"
862     add_cflags    $(get_safe ${pkg}_cflags)
863     add_extralibs $(get_safe ${pkg}_libs)
864 }
865
866 check_host_cc(){
867     log check_host_cc "$@"
868     cat > $TMPC
869     log_file $TMPC
870     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
871 }
872
873 check_host_cflags(){
874     log check_host_cflags "$@"
875     check_host_cc "$@" <<EOF && append host_cflags "$@"
876 int x;
877 EOF
878 }
879
880 apply(){
881     file=$1
882     shift
883     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
884 }
885
886 cp_if_changed(){
887     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
888     mkdir -p "$(dirname $2)"
889     cp -f "$1" "$2"
890 }
891
892 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
893 # system-dependent things.
894
895 COMPONENT_LIST="
896     bsfs
897     decoders
898     demuxers
899     encoders
900     filters
901     hwaccels
902     indevs
903     muxers
904     outdevs
905     parsers
906     protocols
907 "
908
909 PROGRAM_LIST="
910     avconv
911     avplay
912     avprobe
913     avserver
914     ffmpeg
915 "
916
917 CONFIG_LIST="
918     $COMPONENT_LIST
919     $PROGRAM_LIST
920     aandct
921     ac3dsp
922     avcodec
923     avdevice
924     avfilter
925     avformat
926     avisynth
927     bzlib
928     dct
929     doc
930     dwt
931     dxva2
932     fastdiv
933     fft
934     frei0r
935     gnutls
936     golomb
937     gpl
938     gray
939     h264chroma
940     h264dsp
941     h264pred
942     hardcoded_tables
943     huffman
944     libcdio
945     libdc1394
946     libdirac
947     libfaac
948     libfreetype
949     libgsm
950     libmp3lame
951     libnut
952     libopencore_amrnb
953     libopencore_amrwb
954     libopencv
955     libopenjpeg
956     libpulse
957     librtmp
958     libschroedinger
959     libspeex
960     libtheora
961     libvo_aacenc
962     libvo_amrwbenc
963     libvorbis
964     libvpx
965     libx264
966     libxavs
967     libxvid
968     lpc
969     lsp
970     mdct
971     memalign_hack
972     mlib
973     mpegaudiodsp
974     network
975     nonfree
976     openssl
977     pic
978     postproc
979     rdft
980     rtpdec
981     runtime_cpudetect
982     safe_bitstream_reader
983     shared
984     sinewin
985     small
986     sram
987     static
988     swscale
989     swscale_alpha
990     thumb
991     vaapi
992     vda
993     vdpau
994     version3
995     x11grab
996     zlib
997 "
998
999 THREADS_LIST='
1000     pthreads
1001     w32threads
1002 '
1003
1004 ARCH_LIST='
1005     alpha
1006     arm
1007     avr32
1008     avr32_ap
1009     avr32_uc
1010     bfin
1011     ia64
1012     m68k
1013     mips
1014     mips64
1015     parisc
1016     ppc
1017     ppc64
1018     s390
1019     sh4
1020     sparc
1021     sparc64
1022     tomi
1023     x86
1024     x86_32
1025     x86_64
1026 '
1027
1028 ARCH_EXT_LIST='
1029     altivec
1030     amd3dnow
1031     amd3dnowext
1032     armv5te
1033     armv6
1034     armv6t2
1035     armvfp
1036     avx
1037     iwmmxt
1038     mmi
1039     mmx
1040     mmx2
1041     neon
1042     ppc4xx
1043     sse
1044     ssse3
1045     vfpv3
1046     vis
1047 '
1048
1049 HAVE_LIST_PUB='
1050     bigendian
1051     fast_unaligned
1052 '
1053
1054 HAVE_LIST="
1055     $ARCH_EXT_LIST
1056     $HAVE_LIST_PUB
1057     $THREADS_LIST
1058     aligned_stack
1059     alsa_asoundlib_h
1060     altivec_h
1061     arpa_inet_h
1062     asm_mod_y
1063     attribute_may_alias
1064     attribute_packed
1065     closesocket
1066     cmov
1067     dcbzl
1068     dev_bktr_ioctl_bt848_h
1069     dev_bktr_ioctl_meteor_h
1070     dev_ic_bt8xx_h
1071     dev_video_bktr_ioctl_bt848_h
1072     dev_video_meteor_ioctl_meteor_h
1073     dlfcn_h
1074     dlopen
1075     dos_paths
1076     ebp_available
1077     ebx_available
1078     exp2
1079     exp2f
1080     fast_64bit
1081     fast_clz
1082     fast_cmov
1083     fcntl
1084     fork
1085     getaddrinfo
1086     gethrtime
1087     GetProcessAffinityMask
1088     GetProcessMemoryInfo
1089     GetProcessTimes
1090     getrusage
1091     gnu_as
1092     ibm_asm
1093     inet_aton
1094     inline_asm
1095     isatty
1096     ldbrx
1097     libdc1394_1
1098     libdc1394_2
1099     llrint
1100     llrintf
1101     local_aligned_16
1102     local_aligned_8
1103     localtime_r
1104     log2
1105     log2f
1106     loongson
1107     lrint
1108     lrintf
1109     lzo1x_999_compress
1110     machine_ioctl_bt848_h
1111     machine_ioctl_meteor_h
1112     malloc_h
1113     MapViewOfFile
1114     memalign
1115     mkstemp
1116     mmap
1117     poll_h
1118     posix_memalign
1119     round
1120     roundf
1121     sched_getaffinity
1122     sdl
1123     sdl_video_size
1124     setmode
1125     setrlimit
1126     sndio_h
1127     socklen_t
1128     soundcard_h
1129     strerror_r
1130     strptime
1131     strtok_r
1132     struct_addrinfo
1133     struct_ipv6_mreq
1134     struct_rusage_ru_maxrss
1135     struct_sockaddr_in6
1136     struct_sockaddr_sa_len
1137     struct_sockaddr_storage
1138     symver
1139     symver_asm_label
1140     symver_gnu_asm
1141     sysconf
1142     sysctl
1143     sys_mman_h
1144     sys_param_h
1145     sys_resource_h
1146     sys_select_h
1147     sys_soundcard_h
1148     sys_videoio_h
1149     threads
1150     trunc
1151     truncf
1152     vfp_args
1153     VirtualAlloc
1154     winsock2_h
1155     xform_asm
1156     xmm_clobbers
1157     yasm
1158 "
1159
1160 # options emitted with CONFIG_ prefix but not available on command line
1161 CONFIG_EXTRA="
1162     avutil
1163     gplv3
1164     lgplv3
1165 "
1166
1167 CMDLINE_SELECT="
1168     $ARCH_EXT_LIST
1169     $CONFIG_LIST
1170     $THREADS_LIST
1171     asm
1172     cross_compile
1173     debug
1174     extra_warnings
1175     logging
1176     optimizations
1177     symver
1178     yasm
1179 "
1180
1181 PATHS_LIST='
1182     bindir
1183     datadir
1184     incdir
1185     libdir
1186     mandir
1187     prefix
1188     shlibdir
1189 '
1190
1191 CMDLINE_SET="
1192     $PATHS_LIST
1193     ar
1194     arch
1195     as
1196     build_suffix
1197     cc
1198     cpu
1199     cross_prefix
1200     dep_cc
1201     extra_version
1202     host_cc
1203     host_cflags
1204     host_ldflags
1205     host_libs
1206     host_os
1207     ld
1208     logfile
1209     malloc_prefix
1210     nm
1211     optflags
1212     pkg_config
1213     samples
1214     sysinclude
1215     sysroot
1216     target_exec
1217     target_os
1218     target_path
1219 "
1220
1221 CMDLINE_APPEND="
1222     extra_cflags
1223 "
1224
1225 # code dependency declarations
1226
1227 # architecture extensions
1228
1229 armv5te_deps="arm"
1230 armv6_deps="arm"
1231 armv6t2_deps="arm"
1232 armvfp_deps="arm"
1233 iwmmxt_deps="arm"
1234 neon_deps="arm"
1235 vfpv3_deps="armvfp"
1236
1237 mmi_deps="mips"
1238
1239 altivec_deps="ppc"
1240 ppc4xx_deps="ppc"
1241
1242 vis_deps="sparc"
1243
1244 x86_64_suggest="cmov fast_cmov"
1245 amd3dnow_deps="mmx"
1246 amd3dnowext_deps="amd3dnow"
1247 mmx_deps="x86"
1248 mmx2_deps="mmx"
1249 sse_deps="mmx"
1250 ssse3_deps="sse"
1251 avx_deps="ssse3"
1252
1253 aligned_stack_if_any="ppc x86"
1254 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1255 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1256 fast_unaligned_if_any="armv6 ppc x86"
1257
1258 inline_asm_deps="!tms470"
1259 need_memalign="altivec neon sse"
1260
1261 symver_if_any="symver_asm_label symver_gnu_asm"
1262
1263 # subsystems
1264 dct_select="rdft"
1265 mdct_select="fft"
1266 rdft_select="fft"
1267 mpegaudiodsp_select="dct"
1268
1269 # decoders / encoders / hardware accelerators
1270 aac_decoder_select="mdct sinewin"
1271 aac_encoder_select="mdct sinewin"
1272 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1273 ac3_decoder_select="mdct ac3dsp ac3_parser"
1274 ac3_encoder_select="mdct ac3dsp"
1275 ac3_fixed_encoder_select="mdct ac3dsp"
1276 alac_encoder_select="lpc"
1277 amrnb_decoder_select="lsp"
1278 amrwb_decoder_select="lsp"
1279 atrac1_decoder_select="mdct sinewin"
1280 atrac3_decoder_select="mdct"
1281 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1282 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1283 cavs_decoder_select="golomb"
1284 cook_decoder_select="mdct sinewin"
1285 cscd_decoder_suggest="zlib"
1286 dca_decoder_select="mdct"
1287 dnxhd_encoder_select="aandct"
1288 dxa_decoder_select="zlib"
1289 eac3_decoder_select="ac3_decoder"
1290 eac3_encoder_select="mdct ac3dsp"
1291 eamad_decoder_select="aandct"
1292 eatgq_decoder_select="aandct"
1293 eatqi_decoder_select="aandct"
1294 ffv1_decoder_select="golomb"
1295 flac_decoder_select="golomb"
1296 flac_encoder_select="golomb lpc"
1297 flashsv_decoder_select="zlib"
1298 flashsv_encoder_select="zlib"
1299 flashsv2_decoder_select="zlib"
1300 flv_decoder_select="h263_decoder"
1301 flv_encoder_select="h263_encoder"
1302 fraps_decoder_select="huffman"
1303 h261_encoder_select="aandct"
1304 h263_decoder_select="h263_parser"
1305 h263_encoder_select="aandct"
1306 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1307 h263i_decoder_select="h263_decoder"
1308 h263p_encoder_select="h263_encoder"
1309 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1310 h264_dxva2_hwaccel_deps="dxva2api_h"
1311 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1312 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1313 h264_vda_hwaccel_select="vda h264_decoder"
1314 h264_vdpau_decoder_select="vdpau h264_decoder"
1315 imc_decoder_select="fft mdct sinewin"
1316 jpegls_decoder_select="golomb"
1317 jpegls_encoder_select="golomb"
1318 ljpeg_encoder_select="aandct"
1319 loco_decoder_select="golomb"
1320 mjpeg_encoder_select="aandct"
1321 mlp_decoder_select="mlp_parser"
1322 mp1_decoder_select="mpegaudiodsp"
1323 mp1float_decoder_select="mpegaudiodsp"
1324 mp2_decoder_select="mpegaudiodsp"
1325 mp2float_decoder_select="mpegaudiodsp"
1326 mp3_decoder_select="mpegaudiodsp"
1327 mp3adu_decoder_select="mpegaudiodsp"
1328 mp3adufloat_decoder_select="mpegaudiodsp"
1329 mp3float_decoder_select="mpegaudiodsp"
1330 mp3on4_decoder_select="mpegaudiodsp"
1331 mp3on4float_decoder_select="mpegaudiodsp"
1332 mpc7_decoder_select="mpegaudiodsp"
1333 mpc8_decoder_select="mpegaudiodsp"
1334 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1335 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1336 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1337 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1338 mpeg1video_encoder_select="aandct"
1339 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1340 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1341 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1342 mpeg2video_encoder_select="aandct"
1343 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1344 mpeg4_encoder_select="h263_encoder"
1345 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1346 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1347 msmpeg4v1_decoder_select="h263_decoder"
1348 msmpeg4v1_encoder_select="h263_encoder"
1349 msmpeg4v2_decoder_select="h263_decoder"
1350 msmpeg4v2_encoder_select="h263_encoder"
1351 msmpeg4v3_decoder_select="h263_decoder"
1352 msmpeg4v3_encoder_select="h263_encoder"
1353 nellymoser_decoder_select="mdct sinewin"
1354 nellymoser_encoder_select="mdct sinewin"
1355 png_decoder_select="zlib"
1356 png_encoder_select="zlib"
1357 qcelp_decoder_select="lsp"
1358 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1359 ra_144_encoder_select="lpc"
1360 rv10_decoder_select="h263_decoder"
1361 rv10_encoder_select="h263_encoder"
1362 rv20_decoder_select="h263_decoder"
1363 rv20_encoder_select="h263_encoder"
1364 rv30_decoder_select="golomb h264chroma h264pred"
1365 rv40_decoder_select="golomb h264chroma h264pred"
1366 shorten_decoder_select="golomb"
1367 sipr_decoder_select="lsp"
1368 snow_decoder_select="dwt"
1369 snow_encoder_select="aandct dwt"
1370 svq1_encoder_select="aandct"
1371 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1372 svq3_decoder_suggest="zlib"
1373 theora_decoder_select="vp3_decoder"
1374 tiff_decoder_suggest="zlib"
1375 tiff_encoder_suggest="zlib"
1376 truehd_decoder_select="mlp_decoder"
1377 tscc_decoder_select="zlib"
1378 twinvq_decoder_select="mdct lsp sinewin"
1379 vc1_decoder_select="h263_decoder h264chroma"
1380 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1381 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1382 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1383 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1384 vc1image_decoder_select="vc1_decoder"
1385 vorbis_decoder_select="mdct"
1386 vorbis_encoder_select="mdct"
1387 vp6_decoder_select="huffman"
1388 vp6a_decoder_select="vp6_decoder"
1389 vp6f_decoder_select="vp6_decoder"
1390 vp8_decoder_select="h264pred"
1391 wmapro_decoder_select="mdct sinewin"
1392 wmav1_decoder_select="mdct sinewin"
1393 wmav1_encoder_select="mdct sinewin"
1394 wmav2_decoder_select="mdct sinewin"
1395 wmav2_encoder_select="mdct sinewin"
1396 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1397 wmv1_decoder_select="h263_decoder"
1398 wmv1_encoder_select="h263_encoder"
1399 wmv2_decoder_select="h263_decoder"
1400 wmv2_encoder_select="h263_encoder"
1401 wmv3_decoder_select="vc1_decoder"
1402 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1403 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1404 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1405 wmv3image_decoder_select="wmv3_decoder"
1406 zlib_decoder_select="zlib"
1407 zlib_encoder_select="zlib"
1408 zmbv_decoder_select="zlib"
1409 zmbv_encoder_select="zlib"
1410
1411 vaapi_deps="va_va_h"
1412 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1413 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1414
1415 # parsers
1416 h264_parser_select="golomb h264chroma h264dsp h264pred"
1417
1418 # external libraries
1419 libdirac_decoder_deps="libdirac !libschroedinger"
1420 libdirac_encoder_deps="libdirac"
1421 libfaac_encoder_deps="libfaac"
1422 libgsm_decoder_deps="libgsm"
1423 libgsm_encoder_deps="libgsm"
1424 libgsm_ms_decoder_deps="libgsm"
1425 libgsm_ms_encoder_deps="libgsm"
1426 libmp3lame_encoder_deps="libmp3lame"
1427 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1428 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1429 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1430 libopenjpeg_decoder_deps="libopenjpeg"
1431 libschroedinger_decoder_deps="libschroedinger"
1432 libschroedinger_encoder_deps="libschroedinger"
1433 libspeex_decoder_deps="libspeex"
1434 libspeex_encoder_deps="libspeex"
1435 libtheora_encoder_deps="libtheora"
1436 libvo_aacenc_encoder_deps="libvo_aacenc"
1437 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1438 libvorbis_encoder_deps="libvorbis"
1439 libvpx_decoder_deps="libvpx"
1440 libvpx_encoder_deps="libvpx"
1441 libx264_encoder_deps="libx264"
1442 libxavs_encoder_deps="libxavs"
1443 libxvid_encoder_deps="libxvid"
1444
1445 # demuxers / muxers
1446 ac3_demuxer_select="ac3_parser"
1447 asf_stream_muxer_select="asf_muxer"
1448 avisynth_demuxer_deps="avisynth"
1449 dirac_demuxer_select="dirac_parser"
1450 eac3_demuxer_select="ac3_parser"
1451 flac_demuxer_select="flac_parser"
1452 ipod_muxer_select="mov_muxer"
1453 libnut_demuxer_deps="libnut"
1454 libnut_muxer_deps="libnut"
1455 matroska_audio_muxer_select="matroska_muxer"
1456 matroska_demuxer_suggest="zlib bzlib"
1457 mov_demuxer_suggest="zlib"
1458 mp3_demuxer_select="mpegaudio_parser"
1459 mp4_muxer_select="mov_muxer"
1460 mpegtsraw_demuxer_select="mpegts_demuxer"
1461 mxf_d10_muxer_select="mxf_muxer"
1462 ogg_demuxer_select="golomb"
1463 psp_muxer_select="mov_muxer"
1464 rtp_demuxer_select="sdp_demuxer"
1465 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1466 rtsp_demuxer_select="http_protocol rtpdec"
1467 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1468 sap_demuxer_select="sdp_demuxer"
1469 sap_muxer_select="rtp_muxer rtp_protocol"
1470 sdp_demuxer_select="rtpdec"
1471 spdif_muxer_select="aac_parser"
1472 tg2_muxer_select="mov_muxer"
1473 tgp_muxer_select="mov_muxer"
1474 w64_demuxer_deps="wav_demuxer"
1475
1476 # indevs / outdevs
1477 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1478 alsa_outdev_deps="alsa_asoundlib_h"
1479 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1480 dv1394_indev_deps="dv1394 dv_demuxer"
1481 fbdev_indev_deps="linux_fb_h"
1482 jack_indev_deps="jack_jack_h"
1483 libcdio_indev_deps="libcdio"
1484 libdc1394_indev_deps="libdc1394"
1485 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1486 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1487 pulse_indev_deps="libpulse"
1488 sndio_indev_deps="sndio_h"
1489 sndio_outdev_deps="sndio_h"
1490 v4l_indev_deps="linux_videodev_h"
1491 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1492 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1493 vfwcap_indev_extralibs="-lavicap32"
1494 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1495 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1496
1497 # protocols
1498 gopher_protocol_deps="network"
1499 httpproxy_protocol_deps="network"
1500 httpproxy_protocol_select="tcp_protocol"
1501 http_protocol_deps="network"
1502 http_protocol_select="tcp_protocol"
1503 https_protocol_select="tls_protocol"
1504 mmsh_protocol_select="http_protocol"
1505 mmst_protocol_deps="network"
1506 rtmp_protocol_select="tcp_protocol"
1507 rtp_protocol_select="udp_protocol"
1508 tcp_protocol_deps="network"
1509 tls_protocol_deps_any="openssl gnutls"
1510 tls_protocol_select="tcp_protocol"
1511 udp_protocol_deps="network"
1512
1513 # filters
1514 blackframe_filter_deps="gpl"
1515 boxblur_filter_deps="gpl"
1516 cropdetect_filter_deps="gpl"
1517 delogo_filter_deps="gpl"
1518 drawtext_filter_deps="libfreetype"
1519 frei0r_filter_deps="frei0r dlopen strtok_r"
1520 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1521 hqdn3d_filter_deps="gpl"
1522 ocv_filter_deps="libopencv"
1523 scale_filter_deps="swscale"
1524 yadif_filter_deps="gpl"
1525
1526 # libraries
1527 avdevice_deps="avcodec avformat"
1528 avformat_deps="avcodec"
1529 postproc_deps="gpl"
1530
1531 # programs
1532 avconv_deps="avcodec avformat swscale"
1533 avplay_deps="avcodec avformat swscale sdl"
1534 avplay_select="rdft"
1535 avprobe_deps="avcodec avformat"
1536 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1537 avserver_extralibs='$ldl'
1538 ffmpeg_deps="avcodec avformat swscale"
1539
1540 doc_deps="texi2html"
1541
1542 # tests
1543
1544 test_deps(){
1545     suf1=$1
1546     suf2=$2
1547     shift 2
1548     for v; do
1549         dep=${v%=*}
1550         tests=${v#*=}
1551         for name in ${tests}; do
1552             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1553         done
1554     done
1555 }
1556
1557 mxf_d10_test_deps="avfilter"
1558 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1559
1560 test_deps _encoder _decoder                                             \
1561     adpcm_ima_qt                                                        \
1562     adpcm_ima_wav                                                       \
1563     adpcm_ms                                                            \
1564     adpcm_swf                                                           \
1565     adpcm_yamaha=adpcm_yam                                              \
1566     alac                                                                \
1567     asv1                                                                \
1568     asv2                                                                \
1569     bmp                                                                 \
1570     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1571     dvvideo="dv dv_411 dv50"                                            \
1572     ffv1                                                                \
1573     flac                                                                \
1574     flashsv                                                             \
1575     flv                                                                 \
1576     adpcm_g726=g726                                                     \
1577     gif                                                                 \
1578     h261                                                                \
1579     h263="h263 h263p"                                                   \
1580     huffyuv                                                             \
1581     jpegls                                                              \
1582     mjpeg="jpg mjpeg ljpeg"                                             \
1583     mp2                                                                 \
1584     mpeg1video="mpeg mpeg1b"                                            \
1585     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1586     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1587     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1588     mpeg4="mpeg4thread error rc"                                        \
1589     msmpeg4v3=msmpeg4                                                   \
1590     msmpeg4v2                                                           \
1591     pbm=pbmpipe                                                         \
1592     pcx                                                                 \
1593     pgm="pgm pgmpipe"                                                   \
1594     png                                                                 \
1595     ppm="ppm ppmpipe"                                                   \
1596     rawvideo="rgb yuv"                                                  \
1597     roq                                                                 \
1598     rv10                                                                \
1599     rv20                                                                \
1600     sgi                                                                 \
1601     snow="snow snowll"                                                  \
1602     svq1                                                                \
1603     targa=tga                                                           \
1604     tiff                                                                \
1605     wmav1                                                               \
1606     wmav2                                                               \
1607     wmv1                                                                \
1608     wmv2                                                                \
1609
1610 test_deps _muxer _demuxer                                               \
1611     aiff                                                                \
1612     pcm_alaw=alaw                                                       \
1613     asf                                                                 \
1614     au                                                                  \
1615     avi                                                                 \
1616     dv=dv_fmt                                                           \
1617     ffm                                                                 \
1618     flv=flv_fmt                                                         \
1619     gxf                                                                 \
1620     matroska=mkv                                                        \
1621     mmf                                                                 \
1622     mov                                                                 \
1623     pcm_mulaw=mulaw                                                     \
1624     mxf="mxf mxf_d10"                                                   \
1625     nut                                                                 \
1626     ogg                                                                 \
1627     rawvideo=pixfmt                                                     \
1628     rm                                                                  \
1629     swf                                                                 \
1630     mpegts=ts                                                           \
1631     voc                                                                 \
1632     wav                                                                 \
1633     yuv4mpegpipe=yuv4mpeg                                               \
1634
1635 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1636 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1637
1638 # default parameters
1639
1640 logfile="config.log"
1641
1642 # installation paths
1643 prefix_default="/usr/local"
1644 bindir_default='${prefix}/bin'
1645 datadir_default='${prefix}/share/avconv'
1646 incdir_default='${prefix}/include'
1647 libdir_default='${prefix}/lib'
1648 mandir_default='${prefix}/share/man'
1649 shlibdir_default="$libdir_default"
1650
1651 # toolchain
1652 ar_default="ar"
1653 cc_default="gcc"
1654 cc_version=\"unknown\"
1655 host_cc_default="gcc"
1656 ln_s="ln -sf"
1657 nm_default="nm"
1658 objformat="elf"
1659 pkg_config_default=pkg-config
1660 ranlib="ranlib"
1661 yasmexe="yasm"
1662
1663 nm_opts='-g'
1664 nogas=":"
1665
1666 # machine
1667 arch_default=$(uname -m)
1668 cpu="generic"
1669
1670 # OS
1671 target_os_default=$(tolower $(uname -s))
1672 host_os=$target_os_default
1673
1674 # configurable options
1675 enable $PROGRAM_LIST
1676
1677 enable avcodec
1678 enable avdevice
1679 enable avfilter
1680 enable avformat
1681 enable avutil
1682 enable postproc
1683 enable swscale
1684
1685 enable asm
1686 enable debug
1687 enable doc
1688 enable fastdiv
1689 enable network
1690 enable optimizations
1691 enable safe_bitstream_reader
1692 enable static
1693 enable swscale_alpha
1694
1695 # build settings
1696 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1697 AVSERVERLDFLAGS=-Wl,-E
1698 LIBPREF="lib"
1699 LIBSUF=".a"
1700 FULLNAME='$(NAME)$(BUILDSUF)'
1701 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1702 SLIBPREF="lib"
1703 SLIBSUF=".so"
1704 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1705 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1706 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1707 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1708 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1709 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1710
1711 AS_O='-o $@'
1712 CC_O='-o $@'
1713
1714 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1715 host_libs='-lm'
1716
1717 target_path='$(CURDIR)'
1718
1719 # since the object filename is not given with the -MM flag, the compiler
1720 # is only able to print the basename, and we must add the path ourselves
1721 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1722 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1723
1724 # find source path
1725 if test -f configure; then
1726     source_path=.
1727 else
1728     source_path=$(cd $(dirname "$0"); pwd)
1729     echo "$source_path" | grep -q '[[:blank:]]' &&
1730         die "Out of tree builds are impossible with whitespace in source path."
1731     test -e "$source_path/config.h" &&
1732         die "Out of tree builds are impossible with config.h in source dir."
1733 fi
1734
1735 for v in "$@"; do
1736     r=${v#*=}
1737     l=${v%"$r"}
1738     r=$(sh_quote "$r")
1739     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1740 done
1741
1742 find_things(){
1743     thing=$1
1744     pattern=$2
1745     file=$source_path/$3
1746     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1747 }
1748
1749 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1750 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1751 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1752 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1753 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1754 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1755 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1756 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1757 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1758 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1759 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1760
1761 ALL_COMPONENTS="
1762     $BSF_LIST
1763     $DECODER_LIST
1764     $DEMUXER_LIST
1765     $ENCODER_LIST
1766     $FILTER_LIST
1767     $HWACCEL_LIST
1768     $INDEV_LIST
1769     $MUXER_LIST
1770     $OUTDEV_LIST
1771     $PARSER_LIST
1772     $PROTOCOL_LIST
1773 "
1774
1775 find_tests(){
1776     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1777 }
1778
1779 ACODEC_TESTS=$(find_tests acodec)
1780 VCODEC_TESTS=$(find_tests vsynth1)
1781 LAVF_TESTS=$(find_tests lavf)
1782 LAVFI_TESTS=$(find_tests lavfi)
1783 SEEK_TESTS=$(find_tests seek seek_)
1784
1785 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1786
1787 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1788
1789 for n in $COMPONENT_LIST; do
1790     v=$(toupper ${n%s})_LIST
1791     eval enable \$$v
1792     eval ${n}_if_any="\$$v"
1793 done
1794
1795 enable $ARCH_EXT_LIST $ALL_TESTS
1796
1797 die_unknown(){
1798     echo "Unknown option \"$1\"."
1799     echo "See $0 --help for available options."
1800     exit 1
1801 }
1802
1803 show_list() {
1804     suffix=_$1
1805     shift
1806     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1807     exit 0
1808 }
1809
1810 for opt do
1811     optval="${opt#*=}"
1812     case "$opt" in
1813     --extra-ldflags=*) add_ldflags $optval
1814     ;;
1815     --extra-libs=*) add_extralibs $optval
1816     ;;
1817     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1818     ;;
1819     --enable-debug=*) debuglevel="$optval"
1820     ;;
1821     --disable-everything)
1822     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1823     ;;
1824     --enable-*=*|--disable-*=*)
1825     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1826     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1827     eval list=\$$(toupper $thing)_LIST
1828     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1829     $action $(filter "$name" $list)
1830     ;;
1831     --enable-?*|--disable-?*)
1832     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1833     if is_in $option $COMPONENT_LIST; then
1834         test $action = disable && action=unset
1835         eval $action \$$(toupper ${option%s})_LIST
1836     elif is_in $option $CMDLINE_SELECT; then
1837         $action $option
1838     else
1839         die_unknown $opt
1840     fi
1841     ;;
1842     --list-*)
1843         NAME="${opt#--list-}"
1844         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1845         NAME=${NAME%s}
1846         eval show_list $NAME \$$(toupper $NAME)_LIST
1847     ;;
1848     --help|-h) show_help
1849     ;;
1850     *)
1851     optname="${opt%%=*}"
1852     optname="${optname#--}"
1853     optname=$(echo "$optname" | sed 's/-/_/g')
1854     if is_in $optname $CMDLINE_SET; then
1855         eval $optname='$optval'
1856     elif is_in $optname $CMDLINE_APPEND; then
1857         append $optname "$optval"
1858     else
1859          die_unknown $opt
1860     fi
1861     ;;
1862     esac
1863 done
1864
1865 disabled logging && logfile=/dev/null
1866
1867 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1868 set >> $logfile
1869
1870 test -n "$cross_prefix" && enable cross_compile
1871
1872 if enabled cross_compile; then
1873     test -n "$arch" && test -n "$target_os" ||
1874         die "Must specify target arch and OS when cross-compiling"
1875 fi
1876
1877 set_default arch target_os
1878
1879 ar_default="${cross_prefix}${ar_default}"
1880 cc_default="${cross_prefix}${cc_default}"
1881 nm_default="${cross_prefix}${nm_default}"
1882 pkg_config_default="${cross_prefix}${pkg_config_default}"
1883 ranlib="${cross_prefix}${ranlib}"
1884
1885 sysinclude_default="${sysroot}/usr/include"
1886
1887 set_default cc nm pkg_config sysinclude
1888 enabled cross_compile || host_cc_default=$cc
1889 set_default host_cc
1890
1891 if ! $pkg_config --version >/dev/null 2>&1; then
1892     warn "$pkg_config not found, library detection may fail."
1893     pkg_config=false
1894 fi
1895
1896 exesuf() {
1897     case $1 in
1898         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1899     esac
1900 }
1901
1902 EXESUF=$(exesuf $target_os)
1903 HOSTEXESUF=$(exesuf $host_os)
1904
1905 # set temporary file name
1906 : ${TMPDIR:=$TEMPDIR}
1907 : ${TMPDIR:=$TMP}
1908 : ${TMPDIR:=/tmp}
1909
1910 if ! check_cmd mktemp -u XXXXXX; then
1911     # simple replacement for missing mktemp
1912     # NOT SAFE FOR GENERAL USE
1913     mktemp(){
1914         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1915     }
1916 fi
1917
1918 tmpfile(){
1919     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1920         (set -C; exec > $tmp) 2>/dev/null ||
1921         die "Unable to create temporary file in $TMPDIR."
1922     append TMPFILES $tmp
1923     eval $1=$tmp
1924 }
1925
1926 trap 'rm -f -- $TMPFILES' EXIT
1927
1928 tmpfile TMPASM .asm
1929 tmpfile TMPC   .c
1930 tmpfile TMPE   $EXESUF
1931 tmpfile TMPH   .h
1932 tmpfile TMPO   .o
1933 tmpfile TMPS   .S
1934 tmpfile TMPSH  .sh
1935 tmpfile TMPV   .ver
1936
1937 unset -f mktemp
1938
1939 chmod +x $TMPE
1940
1941 # make sure we can execute files in $TMPDIR
1942 cat > $TMPSH 2>> $logfile <<EOF
1943 #! /bin/sh
1944 EOF
1945 chmod +x $TMPSH >> $logfile 2>&1
1946 if ! $TMPSH >> $logfile 2>&1; then
1947     cat <<EOF
1948 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1949 variable to another directory and make sure that it is not mounted noexec.
1950 EOF
1951     die "Sanity test failed."
1952 fi
1953
1954 filter_asflags=echo
1955 filter_cflags=echo
1956 filter_cppflags=echo
1957
1958 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1959     cc_type=llvm_gcc
1960     cc_version=__VERSION__
1961     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1962     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1963     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1964     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1965     speed_cflags='-O3'
1966     size_cflags='-Os'
1967 elif $cc -v 2>&1 | grep -qi ^gcc; then
1968     cc_type=gcc
1969     cc_version=__VERSION__
1970     gcc_version=$($cc --version | head -n1)
1971     gcc_basever=$($cc -dumpversion)
1972     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1973     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1974     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1975     if ! $cc -dumpversion | grep -q '^2\.'; then
1976         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1977         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1978     fi
1979     speed_cflags='-O3'
1980     size_cflags='-Os'
1981 elif $cc --version 2>/dev/null | grep -q Intel; then
1982     cc_type=icc
1983     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1984     cc_ident=$($cc --version | head -n1)
1985     icc_version=$($cc -dumpversion)
1986     CC_DEPFLAGS='-MMD'
1987     AS_DEPFLAGS='-MMD'
1988     speed_cflags='-O3'
1989     size_cflags='-Os'
1990     noopt_cflags='-O1'
1991 elif $cc -v 2>&1 | grep -q xlc; then
1992     cc_type=xlc
1993     cc_version="AV_STRINGIFY(__IBMC__)"
1994     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1995     speed_cflags='-O5'
1996     size_cflags='-O5 -qcompact'
1997 elif $cc -V 2>/dev/null | grep -q Compaq; then
1998     cc_type=ccc
1999     cc_version="AV_STRINGIFY(__DECC_VER)"
2000     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2001     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2002     debuglevel=3
2003     add_ldflags -Wl,-z,now # calls to libots crash without this
2004     speed_cflags='-fast'
2005     size_cflags='-O1'
2006 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2007     test -d "$sysroot" || die "No valid sysroot specified."
2008     cc_type=armcc
2009     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2010     cc_ident=$($cc --vsn | head -n1)
2011     armcc_conf="$PWD/armcc.conf"
2012     $cc --arm_linux_configure                 \
2013         --arm_linux_config_file="$armcc_conf" \
2014         --configure_sysroot="$sysroot"        \
2015         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2016         die "Error creating armcc configuration file."
2017     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2018     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2019     as_default="${cross_prefix}gcc"
2020     CC_DEPFLAGS='-MMD'
2021     AS_DEPFLAGS='-MMD'
2022     speed_cflags='-O3'
2023     size_cflags='-Os'
2024     filter_asflags="filter_out -W${armcc_opt}*"
2025 elif $cc -version 2>/dev/null | grep -q TMS470; then
2026     cc_type=tms470
2027     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2028     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2029     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2030     CC_O='-fr=$(@D)'
2031     as_default="${cross_prefix}gcc"
2032     ld_default="${cross_prefix}gcc"
2033     TMPO=$(basename $TMPC .c).o
2034     append TMPFILES $TMPO
2035     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2036     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2037     AS_DEPFLAGS='-MMD'
2038     speed_cflags='-O3 -mf=5'
2039     size_cflags='-O3 -mf=2'
2040     filter_cflags=tms470_flags
2041     tms470_flags(){
2042         for flag; do
2043             case $flag in
2044                 -march=*|-mcpu=*)
2045                     case "${flag#*=}" in
2046                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2047                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2048                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2049                         armv6*|arm11*)          echo -mv=6   ;;
2050                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2051                                                 echo -mv=5e  ;;
2052                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2053                     esac
2054                     ;;
2055                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2056                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2057                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2058                 -msoft-float)   echo --float_support=vfplib       ;;
2059                 -O[0-3]|-mf=*)  echo $flag                        ;;
2060                 -g)             echo -g -mn                       ;;
2061                 -pds=*)         echo $flag                        ;;
2062             esac
2063         done
2064     }
2065 elif $cc -v 2>&1 | grep -q clang; then
2066     cc_type=clang
2067     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2068         cc_version=__clang_version__ || cc_version=__VERSION__
2069     cc_ident=$($cc --version | head -n1)
2070     CC_DEPFLAGS='-MMD'
2071     AS_DEPFLAGS='-MMD'
2072     speed_cflags='-O3'
2073     size_cflags='-Os'
2074 elif $cc -V 2>&1 | grep -q Sun; then
2075     cc_type=suncc
2076     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2077     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2078     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2079     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2080     add_ldflags -xc99
2081     speed_cflags='-O5'
2082     size_cflags='-O5 -xspace'
2083     filter_cflags=suncc_flags
2084     suncc_flags(){
2085         for flag; do
2086             case $flag in
2087                 -march=*|-mcpu=*)
2088                     case "${flag#*=}" in
2089                         native)                   echo -xtarget=native       ;;
2090                         v9|niagara)               echo -xarch=sparc          ;;
2091                         ultrasparc)               echo -xarch=sparcvis       ;;
2092                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2093                         i586|pentium)             echo -xchip=pentium        ;;
2094                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2095                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2096                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2097                         pentium4*)          echo -xtarget=pentium4           ;;
2098                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2099                         *-sse3)             echo -xarch=sse3                 ;;
2100                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2101                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2102                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2103                         k8|opteron|athlon64|athlon-fx)
2104                                                   echo -xarch=sse2a          ;;
2105                         athlon*)                  echo -xarch=pentium_proa   ;;
2106                     esac
2107                     ;;
2108                 -std=c99)             echo -xc99              ;;
2109                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2110                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2111                 -W*,*)                echo $flag              ;;
2112                 -f*-*|-W*)                                    ;;
2113                 *)                    echo $flag              ;;
2114             esac
2115         done
2116     }
2117 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2118     cc_type=pathscale
2119     cc_version=__PATHSCALE__
2120     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2121     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2122     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2123     speed_cflags='-O2'
2124     size_cflags='-Os'
2125     filter_cflags='filter_out -Wdisabled-optimization'
2126 elif $cc -v 2>&1 | grep -q Open64; then
2127     cc_type=open64
2128     cc_version=__OPEN64__
2129     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2130     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2131     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2132     speed_cflags='-O2'
2133     size_cflags='-Os'
2134     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2135 fi
2136
2137 test -n "$cc_type" && enable $cc_type ||
2138     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2139
2140 : ${as_default:=$cc}
2141 : ${dep_cc_default:=$cc}
2142 : ${ld_default:=$cc}
2143 set_default ar as dep_cc ld
2144
2145 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2146 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2147
2148 add_cflags $extra_cflags
2149 add_asflags $extra_cflags
2150
2151 if test -n "$sysroot"; then
2152     case "$cc_type" in
2153         gcc|llvm_gcc|clang)
2154             add_cppflags --sysroot="$sysroot"
2155             add_ldflags --sysroot="$sysroot"
2156         ;;
2157         tms470)
2158             add_cppflags -I"$sysinclude"
2159             add_ldflags  --sysroot="$sysroot"
2160         ;;
2161     esac
2162 fi
2163
2164 if test "$cpu" = host; then
2165     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2166
2167     case "$cc_type" in
2168         gcc|llvm_gcc)
2169             check_native(){
2170                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2171                 sed -n "/cc1.*$1=/{
2172                             s/.*$1=\\([^ ]*\\).*/\\1/
2173                             p
2174                             q
2175                         }" $TMPE
2176             }
2177             cpu=$(check_native -march || check_native -mcpu)
2178         ;;
2179     esac
2180
2181     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2182 fi
2183
2184 # Deal with common $arch aliases
2185 case "$arch" in
2186     arm*)
2187         arch="arm"
2188     ;;
2189     mips|mipsel|IP*)
2190         arch="mips"
2191     ;;
2192     mips64*)
2193         arch="mips"
2194         subarch="mips64"
2195     ;;
2196     parisc|hppa)
2197         arch="parisc"
2198     ;;
2199     parisc64|hppa64)
2200         arch="parisc"
2201         subarch="parisc64"
2202     ;;
2203     "Power Macintosh"|ppc|powerpc)
2204         arch="ppc"
2205     ;;
2206     ppc64|powerpc64)
2207         arch="ppc"
2208         subarch="ppc64"
2209     ;;
2210     s390|s390x)
2211         arch="s390"
2212     ;;
2213     sh4|sh)
2214         arch="sh4"
2215     ;;
2216     sun4u|sparc64)
2217         arch="sparc"
2218         subarch="sparc64"
2219     ;;
2220     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2221         arch="x86"
2222     ;;
2223 esac
2224
2225 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2226 enable $arch
2227
2228 # Add processor-specific flags
2229 if test "$cpu" = generic; then
2230     : do nothing
2231 elif enabled ppc; then
2232
2233     case $(tolower $cpu) in
2234         601|ppc601|powerpc601)
2235             cpuflags="-mcpu=601"
2236             disable altivec
2237         ;;
2238         603*|ppc603*|powerpc603*)
2239             cpuflags="-mcpu=603"
2240             disable altivec
2241         ;;
2242         604*|ppc604*|powerpc604*)
2243             cpuflags="-mcpu=604"
2244             disable altivec
2245         ;;
2246         g3|75*|ppc75*|powerpc75*)
2247             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2248             disable altivec
2249         ;;
2250         g4|745*|ppc745*|powerpc745*)
2251             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2252         ;;
2253         74*|ppc74*|powerpc74*)
2254             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2255         ;;
2256         g5|970|ppc970|powerpc970|power4*)
2257             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2258         ;;
2259         cell)
2260             cpuflags="-mcpu=cell"
2261             enable ldbrx
2262         ;;
2263         e500v2)
2264             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2265             disable altivec
2266         ;;
2267         e500)
2268             cpuflags="-mcpu=8540 -mhard-float"
2269             disable altivec
2270         ;;
2271     esac
2272
2273 elif enabled x86; then
2274
2275     case $cpu in
2276         i[345]86|pentium)
2277             cpuflags="-march=$cpu"
2278             disable mmx
2279         ;;
2280         # targets that do NOT support conditional mov (cmov)
2281         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2282             cpuflags="-march=$cpu"
2283             disable cmov
2284         ;;
2285         # targets that do support conditional mov (cmov)
2286         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2287             cpuflags="-march=$cpu"
2288             enable cmov
2289             enable fast_cmov
2290         ;;
2291         # targets that do support conditional mov but on which it's slow
2292         pentium4|pentium4m|prescott|nocona)
2293             cpuflags="-march=$cpu"
2294             enable cmov
2295             disable fast_cmov
2296         ;;
2297     esac
2298
2299 elif enabled sparc; then
2300
2301     case $cpu in
2302         niagara)
2303             cpuflags="-mcpu=$cpu"
2304             disable vis
2305         ;;
2306         sparc64)
2307             cpuflags="-mcpu=v9"
2308         ;;
2309     esac
2310
2311 elif enabled arm; then
2312
2313     case $cpu in
2314         armv*)
2315             cpuflags="-march=$cpu"
2316             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2317         ;;
2318         *)
2319             cpuflags="-mcpu=$cpu"
2320             case $cpu in
2321                 cortex-a*)                               subarch=armv7a  ;;
2322                 cortex-r*)                               subarch=armv7r  ;;
2323                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2324                 arm11*)                                  subarch=armv6   ;;
2325                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2326                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2327             esac
2328         ;;
2329     esac
2330
2331 elif enabled alpha; then
2332
2333     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2334
2335 elif enabled bfin; then
2336
2337     cpuflags="-mcpu=$cpu"
2338
2339 elif enabled mips; then
2340
2341     cpuflags="-march=$cpu"
2342
2343 elif enabled avr32; then
2344
2345     case $cpu in
2346         ap7[02]0[0-2])
2347             subarch="avr32_ap"
2348             cpuflags="-mpart=$cpu"
2349         ;;
2350         ap)
2351             subarch="avr32_ap"
2352             cpuflags="-march=$cpu"
2353         ;;
2354         uc3[ab]*)
2355             subarch="avr32_uc"
2356             cpuflags="-mcpu=$cpu"
2357         ;;
2358         uc)
2359             subarch="avr32_uc"
2360             cpuflags="-march=$cpu"
2361         ;;
2362     esac
2363
2364 fi
2365
2366 add_cflags $cpuflags
2367 add_asflags $cpuflags
2368
2369 # compiler sanity check
2370 check_exec <<EOF
2371 int main(void){ return 0; }
2372 EOF
2373 if test "$?" != 0; then
2374     echo "$cc is unable to create an executable file."
2375     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2376         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2377         echo "Only do this if you know what cross compiling means."
2378     fi
2379     die "C compiler test failed."
2380 fi
2381
2382 add_cppflags -D_ISOC99_SOURCE
2383 check_cflags -std=c99
2384 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2385 #include <stdlib.h>
2386 EOF
2387 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2388 #include <stdlib.h>
2389 EOF
2390
2391 check_host_cflags -std=c99
2392 check_host_cflags -Wall
2393
2394 case "$arch" in
2395     alpha|ia64|mips|parisc|sparc)
2396         spic=$shared
2397     ;;
2398     x86)
2399         subarch="x86_32"
2400         check_cc <<EOF && subarch="x86_64"
2401         int test[(int)sizeof(char*) - 7];
2402 EOF
2403         if test "$subarch" = "x86_64"; then
2404             spic=$shared
2405         fi
2406     ;;
2407 esac
2408
2409 enable $subarch
2410 enabled spic && enable pic
2411
2412 # OS specific
2413 case $target_os in
2414     haiku)
2415         prefix_default="/boot/common"
2416         network_extralibs="-lnetwork"
2417         host_libs=
2418         ;;
2419     sunos)
2420         AVSERVERLDFLAGS=""
2421         SHFLAGS='-shared -Wl,-h,$$(@F)'
2422         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2423         network_extralibs="-lsocket -lnsl"
2424         add_cppflags -D__EXTENSIONS__
2425         # When using suncc to build, the Solaris linker will mark
2426         # an executable with each instruction set encountered by
2427         # the Solaris assembler.  As our libraries contain their own
2428         # guards for processor-specific code, instead suppress
2429         # generation of the HWCAPS ELF section on Solaris x86 only.
2430         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2431         nm_opts='-P -g'
2432         ;;
2433     netbsd)
2434         disable symver
2435         oss_indev_extralibs="-lossaudio"
2436         oss_outdev_extralibs="-lossaudio"
2437         ;;
2438     openbsd)
2439         enable malloc_aligned
2440         # On OpenBSD 4.5. the compiler does not use PIC unless
2441         # explicitly using -fPIC. Libav builds fine without PIC,
2442         # however the generated executable will not do anything
2443         # (simply quits with exit-code 1, no crash, no output).
2444         # Thus explicitly enable PIC here.
2445         enable pic
2446         disable symver
2447         SHFLAGS='-shared'
2448         oss_indev_extralibs="-lossaudio"
2449         oss_outdev_extralibs="-lossaudio"
2450         ;;
2451     dragonfly)
2452         enable malloc_aligned
2453         disable symver
2454         ;;
2455     freebsd)
2456         enable malloc_aligned
2457         ;;
2458     bsd/os)
2459         add_extralibs -lpoll -lgnugetopt
2460         ;;
2461     darwin)
2462         enable malloc_aligned
2463         gas="gas-preprocessor.pl $cc"
2464         enabled ppc && add_asflags -force_cpusubtype_ALL
2465         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2466         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2467         add_ldflags -Wl,-dynamic,-search_paths_first
2468         SLIBSUF=".dylib"
2469         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2470         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2471         AVSERVERLDFLAGS=-Wl,-bind_at_load
2472         objformat="macho"
2473         enabled x86_64 && objformat="macho64"
2474         enabled_any pic shared ||
2475             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2476         ;;
2477     mingw32*)
2478         if test $target_os = "mingw32ce"; then
2479             disable network
2480         else
2481             target_os=mingw32
2482         fi
2483         LIBTARGET=i386
2484         if enabled x86_64; then
2485             enable malloc_aligned
2486             LIBTARGET="i386:x86-64"
2487         elif enabled arm; then
2488             LIBTARGET=arm-wince
2489         fi
2490         shlibdir_default="$bindir_default"
2491         SLIBPREF=""
2492         SLIBSUF=".dll"
2493         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2494         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2495         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2496         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2497         SLIB_INSTALL_LINKS=
2498         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2499         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2500         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'
2501         objformat="win32"
2502         dlltool="${cross_prefix}dlltool"
2503         enable dos_paths
2504         check_cflags -fno-common
2505         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2506                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2507                 die "ERROR: MinGW runtime version must be >= 3.15."
2508         add_cppflags -U__STRICT_ANSI__
2509         ;;
2510     cygwin*)
2511         target_os=cygwin
2512         shlibdir_default="$bindir_default"
2513         SLIBPREF="cyg"
2514         SLIBSUF=".dll"
2515         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2516         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2517         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2518         objformat="win32"
2519         enable dos_paths
2520         check_cflags -fno-common
2521         add_cppflags -U__STRICT_ANSI__
2522         ;;
2523     *-dos|freedos|opendos)
2524         network_extralibs="-lsocket"
2525         objformat="coff"
2526         enable dos_paths
2527         add_cppflags -U__STRICT_ANSI__
2528         ;;
2529     linux)
2530         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2531         enable dv1394
2532         ;;
2533     irix*)
2534         target_os=irix
2535         ranlib="echo ignoring ranlib"
2536         ;;
2537     os/2*)
2538         ln_s="cp -f"
2539         objformat="aout"
2540         add_cppflags -D_GNU_SOURCE
2541         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2542         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2543         AVSERVERLDFLAGS=""
2544         LIBSUF="_s.a"
2545         SLIBPREF=""
2546         SLIBSUF=".dll"
2547         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2548         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2549         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2550           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2551           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2552           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2553           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2554           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2555         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2556           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2557         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2558         enable dos_paths
2559         ;;
2560     gnu/kfreebsd)
2561         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2562         ;;
2563     gnu)
2564         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2565         ;;
2566     qnx)
2567         add_cppflags -D_QNX_SOURCE
2568         network_extralibs="-lsocket"
2569         ;;
2570     symbian)
2571         SLIBSUF=".dll"
2572         enable dos_paths
2573         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2574         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2575         add_ldflags -Wl,--target1-abs,--no-undefined \
2576                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2577                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2578         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2579                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2580                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2581         ;;
2582     none)
2583         ;;
2584     *)
2585         die "Unknown OS '$target_os'."
2586         ;;
2587 esac
2588
2589 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2590
2591 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2592
2593 set_default $PATHS_LIST
2594
2595 # we need to build at least one lib type
2596 if ! enabled_any static shared; then
2597     cat <<EOF
2598 At least one library type must be built.
2599 Specify --enable-static to build the static libraries or --enable-shared to
2600 build the shared libraries as well. To only build the shared libraries specify
2601 --disable-static in addition to --enable-shared.
2602 EOF
2603     exit 1;
2604 fi
2605
2606 die_license_disabled() {
2607     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2608 }
2609
2610 die_license_disabled gpl libcdio
2611 die_license_disabled gpl libx264
2612 die_license_disabled gpl libxavs
2613 die_license_disabled gpl libxvid
2614 die_license_disabled gpl x11grab
2615
2616 die_license_disabled nonfree libfaac
2617 die_license_disabled nonfree openssl
2618
2619 die_license_disabled version3 libopencore_amrnb
2620 die_license_disabled version3 libopencore_amrwb
2621 die_license_disabled version3 libvo_aacenc
2622 die_license_disabled version3 libvo_amrwbenc
2623
2624 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2625
2626 disabled optimizations || check_cflags -fomit-frame-pointer
2627
2628 enable_pic() {
2629     enable pic
2630     add_cppflags -DPIC
2631     add_cflags   -fPIC
2632     add_asflags  -fPIC
2633 }
2634
2635 enabled pic && enable_pic
2636
2637 check_cc <<EOF || die "Symbol mangling check failed."
2638 int ff_extern;
2639 EOF
2640 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2641 extern_prefix=${sym%%ff_extern*}
2642
2643 check_cc <<EOF && enable inline_asm
2644 void foo(void) { __asm__ volatile ("" ::); }
2645 EOF
2646
2647 _restrict=
2648 for restrict_keyword in restrict __restrict__ __restrict; do
2649     check_cc <<EOF && _restrict=$restrict_keyword && break
2650 void foo(char * $restrict_keyword p);
2651 EOF
2652 done
2653
2654 check_cc <<EOF && enable attribute_packed
2655 struct { int x; } __attribute__((packed)) x;
2656 EOF
2657
2658 check_cc <<EOF && enable attribute_may_alias
2659 union { int x; } __attribute__((may_alias)) x;
2660 EOF
2661
2662 check_cc <<EOF || die "endian test failed"
2663 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2664 EOF
2665 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2666
2667 if enabled alpha; then
2668
2669     check_cflags -mieee
2670
2671 elif enabled arm; then
2672
2673     enabled thumb && check_cflags -mthumb || check_cflags -marm
2674     nogas=die
2675
2676     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2677         enable vfp_args
2678     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2679         case "${cross_prefix:-$cc}" in
2680             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2681             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2682 __asm__ (".eabi_attribute 28, 1");
2683 int main(void) { return 0; }
2684 EOF
2685         esac
2686         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2687     fi
2688
2689     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2690     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2691     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2692     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2693     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2694     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2695     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2696
2697     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2698
2699     enabled_all armv6t2 shared !pic && enable_pic
2700
2701 elif enabled mips; then
2702
2703     check_asm loongson '"dmult.g $1, $2, $3"'
2704     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2705
2706 elif enabled ppc; then
2707
2708     enable local_aligned_8 local_aligned_16
2709
2710     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2711     check_asm ibm_asm   '"add 0, 0, 0"'
2712     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2713     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2714
2715     # AltiVec flags: The FSF version of GCC differs from the Apple version
2716     if enabled altivec; then
2717         nogas=warn
2718         check_cflags -maltivec -mabi=altivec &&
2719         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2720         check_cflags -faltivec
2721
2722         # check if our compiler supports Motorola AltiVec C API
2723         check_cc <<EOF || disable altivec
2724 $inc_altivec_h
2725 int main(void) {
2726     vector signed int v1, v2, v3;
2727     v1 = vec_add(v2,v3);
2728     return 0;
2729 }
2730 EOF
2731
2732         # check if our compiler supports braces for vector declarations
2733         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2734 $inc_altivec_h
2735 int main (void) { (vector int) {1}; return 0; }
2736 EOF
2737     fi
2738
2739 elif enabled sparc; then
2740
2741     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2742         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2743
2744 elif enabled x86; then
2745
2746     enable local_aligned_8 local_aligned_16
2747
2748     # check whether EBP is available on x86
2749     # As 'i' is stored on the stack, this program will crash
2750     # if the base pointer is used to access it because the
2751     # base pointer is cleared in the inline assembly code.
2752     check_exec_crash <<EOF && enable ebp_available
2753     volatile int i=0;
2754     __asm__ volatile (
2755         "xorl %%ebp, %%ebp"
2756     ::: "%ebp");
2757     return i;
2758 EOF
2759
2760     # check whether EBX is available on x86
2761     check_asm ebx_available '""::"b"(0)' &&
2762         check_asm ebx_available '"":::"%ebx"'
2763
2764     # check whether xmm clobbers are supported
2765     check_asm xmm_clobbers '"":::"%xmm0"'
2766
2767     # check whether binutils is new enough to compile SSSE3/MMX2
2768     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2769     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2770
2771     if ! disabled_any asm mmx yasm; then
2772         if check_cmd $yasmexe --version; then
2773             enabled x86_64 && yasm_extra="-m amd64"
2774             yasm_debug="-g dwarf2"
2775         elif check_cmd nasm -v; then
2776             yasmexe=nasm
2777             yasm_debug="-g -F dwarf"
2778             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2779         fi
2780
2781         YASMFLAGS="-f $objformat $yasm_extra"
2782         enabled pic               && append YASMFLAGS "-DPIC"
2783         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2784         case "$objformat" in
2785             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2786         esac
2787
2788         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2789             die "yasm not found, use --disable-yasm for a crippled build"
2790         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2791     fi
2792
2793     case "$cpu" in
2794         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2795             disable fast_clz
2796         ;;
2797     esac
2798
2799 fi
2800
2801 if enabled asm; then
2802     as=${gas:=$as}
2803     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2804         $nogas "GNU assembler not found, install gas-preprocessor"
2805 fi
2806
2807 check_ldflags -Wl,--as-needed
2808
2809 if check_func dlopen; then
2810     ldl=
2811 elif check_func dlopen -ldl; then
2812     ldl=-ldl
2813 fi
2814
2815 if enabled network; then
2816     check_type "sys/types.h sys/socket.h" socklen_t
2817     check_type netdb.h "struct addrinfo"
2818     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2819     check_type netinet/in.h "struct sockaddr_in6"
2820     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2821     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2822     # Prefer arpa/inet.h over winsock2
2823     if check_header arpa/inet.h ; then
2824         check_func closesocket
2825     elif check_header winsock2.h ; then
2826         check_func_headers winsock2.h closesocket -lws2 && \
2827             network_extralibs="-lws2" || \
2828         { check_func_headers winsock2.h closesocket -lws2_32 && \
2829             network_extralibs="-lws2_32"; }
2830         check_type ws2tcpip.h socklen_t
2831         check_type ws2tcpip.h "struct addrinfo"
2832         check_type ws2tcpip.h "struct ipv6_mreq"
2833         check_type ws2tcpip.h "struct sockaddr_in6"
2834         check_type ws2tcpip.h "struct sockaddr_storage"
2835         check_struct winsock2.h "struct sockaddr" sa_len
2836     else
2837         disable network
2838     fi
2839 fi
2840
2841 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2842 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2843
2844 check_func  fcntl
2845 check_func  fork
2846 check_func  getaddrinfo $network_extralibs
2847 check_func  gethrtime
2848 check_func  getrusage
2849 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2850 check_func  inet_aton $network_extralibs
2851 check_func  isatty
2852 check_func  localtime_r
2853 check_func  ${malloc_prefix}memalign            && enable memalign
2854 check_func  mkstemp
2855 check_func  mmap
2856 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2857 check_func  setrlimit
2858 check_func  strerror_r
2859 check_func  strptime
2860 check_func  strtok_r
2861 check_func  sched_getaffinity
2862 check_func  sysconf
2863 check_func  sysctl
2864 check_func_headers io.h setmode
2865 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2866 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2867 check_func_headers windows.h GetProcessAffinityMask
2868 check_func_headers windows.h GetProcessTimes
2869 check_func_headers windows.h MapViewOfFile
2870 check_func_headers windows.h VirtualAlloc
2871
2872 check_header dlfcn.h
2873 check_header dxva2api.h
2874 check_header malloc.h
2875 check_header poll.h
2876 check_header sys/mman.h
2877 check_header sys/param.h
2878 check_header sys/resource.h
2879 check_header sys/select.h
2880 check_header vdpau/vdpau.h
2881 check_header vdpau/vdpau_x11.h
2882 check_header X11/extensions/XvMClib.h
2883
2884 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2885
2886 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2887 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2888
2889 if ! disabled w32threads && ! enabled pthreads; then
2890     check_func _beginthreadex && enable w32threads
2891 fi
2892
2893 # check for some common methods of building with pthread support
2894 # do this before the optional library checks as some of them require pthreads
2895 if ! disabled pthreads && ! enabled w32threads; then
2896     enable pthreads
2897     if check_func pthread_create; then
2898         :
2899     elif check_func pthread_create -pthread; then
2900         add_cflags -pthread
2901         add_extralibs -pthread
2902     elif check_func pthread_create -pthreads; then
2903         add_cflags -pthreads
2904         add_extralibs -pthreads
2905     elif check_func pthread_create -lpthreadGC2; then
2906         add_extralibs -lpthreadGC2
2907     elif ! check_lib pthread.h pthread_create -lpthread; then
2908         disable pthreads
2909     fi
2910 fi
2911
2912 for thread in $THREADS_LIST; do
2913     if enabled $thread; then
2914         test -n "$thread_type" &&
2915             die "ERROR: Only one thread type must be selected." ||
2916             thread_type="$thread"
2917     fi
2918 done
2919
2920 check_lib math.h sin -lm && LIBM="-lm"
2921 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2922
2923 check_mathfunc exp2
2924 check_mathfunc exp2f
2925 check_mathfunc llrint
2926 check_mathfunc llrintf
2927 check_mathfunc log2
2928 check_mathfunc log2f
2929 check_mathfunc lrint
2930 check_mathfunc lrintf
2931 check_mathfunc round
2932 check_mathfunc roundf
2933 check_mathfunc trunc
2934 check_mathfunc truncf
2935
2936 # these are off by default, so fail if requested and not available
2937 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2938 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2939 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2940 enabled libdirac   && require_pkg_config dirac                          \
2941     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2942     "dirac_decoder_init dirac_encoder_init"
2943 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2944 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2945 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2946 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2947 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2948 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2949 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2950 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2951 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2952 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2953 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2954 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2955 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2956 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2957 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2958 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2959 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2960 enabled libvpx     && {
2961     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2962                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2963     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2964                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2965 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2966                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2967                         die "ERROR: libx264 version must be >= 0.118."; }
2968 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2969 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2970 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2971 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2972                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2973                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2974                         die "ERROR: openssl not found"; }
2975
2976 # libdc1394 check
2977 if enabled libdc1394; then
2978     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2979         enable libdc1394_2; } ||
2980     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2981         enable libdc1394_1; } ||
2982     die "ERROR: No version of libdc1394 found "
2983 fi
2984
2985 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2986     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2987     enable sdl &&
2988     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2989 fi
2990
2991 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2992
2993 check_header linux/fb.h
2994 check_header linux/videodev.h
2995 check_header linux/videodev2.h
2996 check_header sys/videoio.h
2997
2998 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2999 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3000 # w32api 3.12 had it defined wrong
3001 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3002
3003 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3004 { check_header dev/bktr/ioctl_meteor.h &&
3005   check_header dev/bktr/ioctl_bt848.h; } ||
3006 { check_header machine/ioctl_meteor.h &&
3007   check_header machine/ioctl_bt848.h; } ||
3008 { check_header dev/video/meteor/ioctl_meteor.h &&
3009   check_header dev/video/bktr/ioctl_bt848.h; } ||
3010 check_header dev/ic/bt8xx.h
3011
3012 check_header sndio.h
3013 check_header sys/soundcard.h
3014 check_header soundcard.h
3015
3016 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3017
3018 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3019
3020 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3021
3022 enabled libcdio &&
3023     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3024
3025 enabled x11grab                         &&
3026 check_header X11/Xlib.h                 &&
3027 check_header X11/extensions/XShm.h      &&
3028 check_header X11/extensions/Xfixes.h    &&
3029 check_func XOpenDisplay -lX11           &&
3030 check_func XShmCreateImage -lX11 -lXext &&
3031 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3032
3033 # check for VDA header
3034 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3035     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3036 fi
3037
3038 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3039 check_cpp_condition \
3040     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3041     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3042       disable vdpau; }
3043 fi
3044
3045 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3046
3047 # add some useful compiler flags if supported
3048 check_cflags -Wdeclaration-after-statement
3049 check_cflags -Wall
3050 check_cflags -Wno-parentheses
3051 check_cflags -Wno-switch
3052 check_cflags -Wno-format-zero-length
3053 check_cflags -Wdisabled-optimization
3054 check_cflags -Wpointer-arith
3055 check_cflags -Wredundant-decls
3056 check_cflags -Wno-pointer-sign
3057 check_cflags -Wcast-qual
3058 check_cflags -Wwrite-strings
3059 check_cflags -Wtype-limits
3060 check_cflags -Wundef
3061 check_cflags -Wmissing-prototypes
3062 check_cflags -Wstrict-prototypes
3063 enabled extra_warnings && check_cflags -Winline
3064
3065 # add some linker flags
3066 check_ldflags -Wl,--warn-common
3067 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3068 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3069
3070 echo "X{};" > $TMPV
3071 if test_ldflags -Wl,--version-script,$TMPV; then
3072     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3073     check_cc <<EOF && enable symver_asm_label
3074 void ff_foo(void) __asm__ ("av_foo@VERSION");
3075 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3076 EOF
3077     check_cc <<EOF && enable symver_gnu_asm
3078 __asm__(".symver ff_foo,av_foo@VERSION");
3079 void ff_foo(void) {}
3080 EOF
3081 fi
3082
3083 if [ -n "$optflags" ]; then
3084     add_cflags $optflags
3085 elif enabled small; then
3086     add_cflags $size_cflags
3087 elif enabled optimizations; then
3088     add_cflags $speed_cflags
3089 else
3090     add_cflags $noopt_cflags
3091 fi
3092 check_cflags -fno-math-errno
3093 check_cflags -fno-signed-zeros
3094
3095 if enabled icc; then
3096     # Just warnings, no remarks
3097     check_cflags -w1
3098     # -wd: Disable following warnings
3099     # 144, 167, 556: -Wno-pointer-sign
3100     # 1292: attribute "foo" ignored
3101     # 10006: ignoring unknown option -fno-signed-zeros
3102     # 10148: ignoring unknown option -Wno-parentheses
3103     # 10156: ignoring option '-W'; no argument required
3104     check_cflags -wd144,167,556,1292,10006,10148,10156
3105     # 11030: Warning unknown option --as-needed
3106     # 10156: ignoring option '-export'; no argument required
3107     check_ldflags -wd10156,11030
3108     # Allow to compile with optimizations
3109     check_ldflags -march=$cpu
3110     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3111     enable ebp_available
3112     if enabled x86_32; then
3113         test ${icc_version%%.*} -ge 11 && \
3114             check_cflags -falign-stack=maintain-16-byte || \
3115             disable aligned_stack
3116     fi
3117 elif enabled ccc; then
3118     # disable some annoying warnings
3119     add_cflags -msg_disable cvtu32to64
3120     add_cflags -msg_disable embedcomment
3121     add_cflags -msg_disable needconstext
3122     add_cflags -msg_disable nomainieee
3123     add_cflags -msg_disable ptrmismatch1
3124     add_cflags -msg_disable unreachcode
3125 elif enabled gcc; then
3126     check_cflags -fno-tree-vectorize
3127     check_cflags -Werror=implicit-function-declaration
3128     check_cflags -Werror=missing-prototypes
3129     check_cflags -Werror=declaration-after-statement
3130 elif enabled llvm_gcc; then
3131     check_cflags -mllvm -stack-alignment=16
3132 elif enabled clang; then
3133     check_cflags -mllvm -stack-alignment=16
3134     check_cflags -Qunused-arguments
3135 elif enabled armcc; then
3136     # 2523: use of inline assembler is deprecated
3137     add_cflags -W${armcc_opt},--diag_suppress=2523
3138     add_cflags -W${armcc_opt},--diag_suppress=1207
3139     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3140     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3141     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3142     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3143 elif enabled tms470; then
3144     add_cflags -pds=824 -pds=837
3145 elif enabled pathscale; then
3146     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3147 fi
3148
3149 enabled_any $THREADS_LIST      && enable threads
3150
3151 check_deps $CONFIG_LIST       \
3152            $CONFIG_EXTRA      \
3153            $HAVE_LIST         \
3154            $ALL_COMPONENTS    \
3155            $ALL_TESTS         \
3156
3157 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3158
3159 ! enabled_any memalign posix_memalign malloc_aligned &&
3160     enabled_any $need_memalign && enable memalign_hack
3161
3162 echo "install prefix            $prefix"
3163 echo "source path               $source_path"
3164 echo "C compiler                $cc"
3165 echo "ARCH                      $arch ($cpu)"
3166 if test "$build_suffix" != ""; then
3167     echo "build suffix              $build_suffix"
3168 fi
3169 if test "$extra_version" != ""; then
3170     echo "version string suffix     $extra_version"
3171 fi
3172 echo "big-endian                ${bigendian-no}"
3173 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3174 if enabled x86; then
3175     echo "${yasmexe}                      ${yasm-no}"
3176     echo "MMX enabled               ${mmx-no}"
3177     echo "MMX2 enabled              ${mmx2-no}"
3178     echo "3DNow! enabled            ${amd3dnow-no}"
3179     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3180     echo "SSE enabled               ${sse-no}"
3181     echo "SSSE3 enabled             ${ssse3-no}"
3182     echo "AVX enabled               ${avx-no}"
3183     echo "CMOV enabled              ${cmov-no}"
3184     echo "CMOV is fast              ${fast_cmov-no}"
3185     echo "EBX available             ${ebx_available-no}"
3186     echo "EBP available             ${ebp_available-no}"
3187 fi
3188 if enabled arm; then
3189     echo "ARMv5TE enabled           ${armv5te-no}"
3190     echo "ARMv6 enabled             ${armv6-no}"
3191     echo "ARMv6T2 enabled           ${armv6t2-no}"
3192     echo "ARM VFP enabled           ${armvfp-no}"
3193     echo "IWMMXT enabled            ${iwmmxt-no}"
3194     echo "NEON enabled              ${neon-no}"
3195 fi
3196 if enabled mips; then
3197     echo "MMI enabled               ${mmi-no}"
3198 fi
3199 if enabled ppc; then
3200     echo "AltiVec enabled           ${altivec-no}"
3201     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3202     echo "dcbzl available           ${dcbzl-no}"
3203 fi
3204 if enabled sparc; then
3205     echo "VIS enabled               ${vis-no}"
3206 fi
3207 echo "debug symbols             ${debug-no}"
3208 echo "optimize for size         ${small-no}"
3209 echo "optimizations             ${optimizations-no}"
3210 echo "static                    ${static-no}"
3211 echo "shared                    ${shared-no}"
3212 echo "postprocessing support    ${postproc-no}"
3213 echo "new filter support        ${avfilter-no}"
3214 echo "network support           ${network-no}"
3215 echo "threading support         ${thread_type-no}"
3216 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3217 echo "SDL support               ${sdl-no}"
3218 echo "Sun medialib support      ${mlib-no}"
3219 echo "libdxva2 enabled          ${dxva2-no}"
3220 echo "libva enabled             ${vaapi-no}"
3221 echo "libvdpau enabled          ${vdpau-no}"
3222 echo "AVISynth enabled          ${avisynth-no}"
3223 echo "frei0r enabled            ${frei0r-no}"
3224 echo "gnutls enabled            ${gnutls-no}"
3225 echo "libcdio support           ${libcdio-no}"
3226 echo "libdc1394 support         ${libdc1394-no}"
3227 echo "libdirac enabled          ${libdirac-no}"
3228 echo "libfaac enabled           ${libfaac-no}"
3229 echo "libgsm enabled            ${libgsm-no}"
3230 echo "libmp3lame enabled        ${libmp3lame-no}"
3231 echo "libnut enabled            ${libnut-no}"
3232 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3233 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3234 echo "libopencv support         ${libopencv-no}"
3235 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3236 echo "libpulse enabled          ${libpulse-no}"
3237 echo "librtmp enabled           ${librtmp-no}"
3238 echo "libschroedinger enabled   ${libschroedinger-no}"
3239 echo "libspeex enabled          ${libspeex-no}"
3240 echo "libtheora enabled         ${libtheora-no}"
3241 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3242 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3243 echo "libvorbis enabled         ${libvorbis-no}"
3244 echo "libvpx enabled            ${libvpx-no}"
3245 echo "libx264 enabled           ${libx264-no}"
3246 echo "libxavs enabled           ${libxavs-no}"
3247 echo "libxvid enabled           ${libxvid-no}"
3248 echo "openssl enabled           ${openssl-no}"
3249 echo "zlib enabled              ${zlib-no}"
3250 echo "bzlib enabled             ${bzlib-no}"
3251 echo
3252
3253 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3254     echo "Enabled ${type}s:"
3255     eval list=\$$(toupper $type)_LIST
3256     print_enabled '_*' $list | sort | pr -r -3 -t
3257     echo
3258 done
3259
3260 license="LGPL version 2.1 or later"
3261 if enabled nonfree; then
3262     license="nonfree and unredistributable"
3263 elif enabled gplv3; then
3264     license="GPL version 3 or later"
3265 elif enabled lgplv3; then
3266     license="LGPL version 3 or later"
3267 elif enabled gpl; then
3268     license="GPL version 2 or later"
3269 fi
3270
3271 echo "License: $license"
3272
3273 echo "Creating config.mak and config.h..."
3274
3275 test -e Makefile || $ln_s "$source_path/Makefile" .
3276
3277 config_files="$TMPH config.mak"
3278
3279 cat > config.mak <<EOF
3280 # Automatically generated by configure - do not modify!
3281 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3282 prefix=$prefix
3283 LIBDIR=\$(DESTDIR)$libdir
3284 SHLIBDIR=\$(DESTDIR)$shlibdir
3285 INCDIR=\$(DESTDIR)$incdir
3286 BINDIR=\$(DESTDIR)$bindir
3287 DATADIR=\$(DESTDIR)$datadir
3288 MANDIR=\$(DESTDIR)$mandir
3289 SRC_PATH=$source_path
3290 CC_IDENT=$cc_ident
3291 ARCH=$arch
3292 CC=$cc
3293 AS=$as
3294 LD=$ld
3295 DEPCC=$dep_cc
3296 YASM=$yasmexe
3297 YASMDEP=$yasmexe
3298 AR=$ar
3299 RANLIB=$ranlib
3300 LN_S=$ln_s
3301 CPPFLAGS=$CPPFLAGS
3302 CFLAGS=$CFLAGS
3303 ASFLAGS=$ASFLAGS
3304 AS_O=$CC_O
3305 CC_O=$CC_O
3306 DLLTOOL=$dlltool
3307 LDFLAGS=$LDFLAGS
3308 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3309 SHFLAGS=$SHFLAGS
3310 YASMFLAGS=$YASMFLAGS
3311 BUILDSUF=$build_suffix
3312 FULLNAME=$FULLNAME
3313 LIBPREF=$LIBPREF
3314 LIBSUF=$LIBSUF
3315 LIBNAME=$LIBNAME
3316 SLIBPREF=$SLIBPREF
3317 SLIBSUF=$SLIBSUF
3318 EXESUF=$EXESUF
3319 EXTRA_VERSION=$extra_version
3320 DEPFLAGS=$DEPFLAGS
3321 CCDEP=$CCDEP
3322 ASDEP=$ASDEP
3323 CC_DEPFLAGS=$CC_DEPFLAGS
3324 AS_DEPFLAGS=$AS_DEPFLAGS
3325 HOSTCC=$host_cc
3326 HOSTCFLAGS=$host_cflags
3327 HOSTEXESUF=$HOSTEXESUF
3328 HOSTLDFLAGS=$host_ldflags
3329 HOSTLIBS=$host_libs
3330 TARGET_EXEC=$target_exec
3331 TARGET_PATH=$target_path
3332 SDL_LIBS=$sdl_libs
3333 SDL_CFLAGS=$sdl_cflags
3334 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3335 EXTRALIBS=$extralibs
3336 INSTALL=install
3337 LIBTARGET=${LIBTARGET}
3338 SLIBNAME=${SLIBNAME}
3339 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3340 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3341 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3342 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3343 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3344 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3345 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3346 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3347 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3348 EOF
3349
3350 get_version(){
3351     name=$1
3352     file=$source_path/$2
3353     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3354     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3355     lcname=$(tolower $name)
3356     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3357     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3358 }
3359
3360 get_version LIBAVCODEC  libavcodec/version.h
3361 get_version LIBAVDEVICE libavdevice/avdevice.h
3362 get_version LIBAVFILTER libavfilter/avfilter.h
3363 get_version LIBAVFORMAT libavformat/version.h
3364 get_version LIBAVUTIL   libavutil/avutil.h
3365 get_version LIBPOSTPROC libpostproc/postprocess.h
3366 get_version LIBSWSCALE  libswscale/swscale.h
3367
3368 cat > $TMPH <<EOF
3369 /* Automatically generated by configure - do not modify! */
3370 #ifndef LIBAV_CONFIG_H
3371 #define LIBAV_CONFIG_H
3372 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3373 #define LIBAV_LICENSE "$(c_escape $license)"
3374 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3375 #define CC_TYPE "$cc_type"
3376 #define CC_VERSION $cc_version
3377 #define restrict $_restrict
3378 #define EXTERN_PREFIX "${extern_prefix}"
3379 #define EXTERN_ASM ${extern_prefix}
3380 #define SLIBSUF "$SLIBSUF"
3381 EOF
3382
3383 test -n "$malloc_prefix" &&
3384     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3385
3386 if enabled small || disabled optimizations; then
3387     echo "#undef  av_always_inline"  >> $TMPH
3388     if enabled small; then
3389         echo "#define av_always_inline inline"  >> $TMPH
3390     else
3391         echo "#define av_always_inline av_unused"  >> $TMPH
3392     fi
3393 fi
3394
3395 if enabled yasm; then
3396     append config_files $TMPASM
3397     printf '' >$TMPASM
3398 fi
3399
3400 print_config ARCH_   "$config_files" $ARCH_LIST
3401 print_config HAVE_   "$config_files" $HAVE_LIST
3402 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3403                                      $CONFIG_EXTRA      \
3404                                      $ALL_COMPONENTS    \
3405
3406 cat >>config.mak <<EOF
3407 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3408 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3409 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3410 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3411 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3412 EOF
3413
3414 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3415
3416 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3417 cp_if_changed $TMPH config.h
3418 touch .config
3419
3420 enabled yasm && cp_if_changed $TMPASM config.asm
3421
3422 cat > $TMPH <<EOF
3423 /* Generated by ffconf */
3424 #ifndef AVUTIL_AVCONFIG_H
3425 #define AVUTIL_AVCONFIG_H
3426 EOF
3427
3428 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3429
3430 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3431
3432 cp_if_changed $TMPH libavutil/avconfig.h
3433
3434 test -n "$WARNINGS" && printf "\n$WARNINGS"
3435
3436 # build pkg-config files
3437
3438 pkgconfig_generate(){
3439 name=$1
3440 shortname=${name#lib}${build_suffix}
3441 comment=$2
3442 version=$3
3443 libs=$4
3444 requires=$5
3445 enabled ${name#lib} || return 0
3446 mkdir -p $name
3447 cat <<EOF > $name/$name.pc
3448 prefix=$prefix
3449 exec_prefix=\${prefix}
3450 libdir=$libdir
3451 includedir=$incdir
3452
3453 Name: $name
3454 Description: $comment
3455 Version: $version
3456 Requires: $(enabled shared || echo $requires)
3457 Requires.private: $(enabled shared && echo $requires)
3458 Conflicts:
3459 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3460 Libs.private: $(enabled shared && echo $libs)
3461 Cflags: -I\${includedir}
3462 EOF
3463 cat <<EOF > $name/$name-uninstalled.pc
3464 prefix=
3465 exec_prefix=
3466 libdir=\${pcfiledir}
3467 includedir=${source_path}
3468
3469 Name: $name
3470 Description: $comment
3471 Version: $version
3472 Requires: $requires
3473 Conflicts:
3474 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3475 Cflags: -I\${includedir}
3476 EOF
3477 }
3478
3479 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3480 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3481 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3482 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3483 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3484 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3485 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"