avconv: move audio output buffer allocation to a separate function
[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 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Component options:
103   --disable-doc            do not build documentation
104   --disable-avconv         disable avconv build
105   --disable-avplay         disable avplay build
106   --disable-avprobe        disable avprobe build
107   --disable-avserver       disable avserver build
108   --disable-avdevice       disable libavdevice build
109   --disable-avcodec        disable libavcodec build
110   --disable-avformat       disable libavformat build
111   --disable-swscale        disable libswscale build
112   --disable-avfilter       disable video filter support [no]
113   --disable-pthreads       disable pthreads [auto]
114   --disable-w32threads     disable Win32 threads [auto]
115   --enable-x11grab         enable X11 grabbing [no]
116   --disable-network        disable network support [no]
117   --disable-dct            disable DCT code
118   --disable-fft            disable FFT code
119   --disable-mdct           disable MDCT code
120   --disable-rdft           disable RDFT code
121   --disable-fft            disable FFT code
122   --enable-dxva2           enable DXVA2 code
123   --enable-vaapi           enable VAAPI code
124   --enable-vda             enable VDA code
125   --enable-vdpau           enable VDPAU code
126
127 Individual component options:
128   --disable-everything     disable all components listed below
129   --disable-encoder=NAME   disable encoder NAME
130   --enable-encoder=NAME    enable encoder NAME
131   --disable-encoders       disable all encoders
132   --disable-decoder=NAME   disable decoder NAME
133   --enable-decoder=NAME    enable decoder NAME
134   --disable-decoders       disable all decoders
135   --disable-hwaccel=NAME   disable hwaccel NAME
136   --enable-hwaccel=NAME    enable hwaccel NAME
137   --disable-hwaccels       disable all hwaccels
138   --disable-muxer=NAME     disable muxer NAME
139   --enable-muxer=NAME      enable muxer NAME
140   --disable-muxers         disable all muxers
141   --disable-demuxer=NAME   disable demuxer NAME
142   --enable-demuxer=NAME    enable demuxer NAME
143   --disable-demuxers       disable all demuxers
144   --enable-parser=NAME     enable parser NAME
145   --disable-parser=NAME    disable parser NAME
146   --disable-parsers        disable all parsers
147   --enable-bsf=NAME        enable bitstream filter NAME
148   --disable-bsf=NAME       disable bitstream filter NAME
149   --disable-bsfs           disable all bitstream filters
150   --enable-protocol=NAME   enable protocol NAME
151   --disable-protocol=NAME  disable protocol NAME
152   --disable-protocols      disable all protocols
153   --enable-indev=NAME      enable input device NAME
154   --disable-indev=NAME     disable input device NAME
155   --disable-indevs         disable input devices
156   --enable-outdev=NAME     enable output device NAME
157   --disable-outdev=NAME    disable output device NAME
158   --disable-outdevs        disable output devices
159   --disable-devices        disable all devices
160   --enable-filter=NAME     enable filter NAME
161   --disable-filter=NAME    disable filter NAME
162   --disable-filters        disable all filters
163
164 External library support:
165   --enable-avisynth        enable reading of AVISynth script files [no]
166   --enable-bzlib           enable bzlib [autodetect]
167   --enable-frei0r          enable frei0r video filtering
168   --enable-gnutls          enable gnutls [no]
169   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
170   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
171   --enable-libopencv       enable video filtering via libopencv [no]
172   --enable-libcdio         enable audio CD grabbing with libcdio
173   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
174                            and libraw1394 [no]
175   --enable-libdirac        enable Dirac support via libdirac [no]
176   --enable-libfaac         enable FAAC support via libfaac [no]
177   --enable-libfreetype     enable libfreetype [no]
178   --enable-libgsm          enable GSM support via libgsm [no]
179   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
180   --enable-libnut          enable NUT (de)muxing via libnut,
181                            native (de)muxer exists [no]
182   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
183   --enable-libpulse        enable Pulseaudio input via libpulse [no]
184   --enable-librtmp         enable RTMP[E] support via librtmp [no]
185   --enable-libschroedinger enable Dirac support via libschroedinger [no]
186   --enable-libspeex        enable Speex support via libspeex [no]
187   --enable-libtheora       enable Theora encoding via libtheora [no]
188   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
189   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
190   --enable-libvorbis       enable Vorbis encoding via libvorbis,
191                            native implementation exists [no]
192   --enable-libvpx          enable VP8 support via libvpx [no]
193   --enable-libx264         enable H.264 encoding via x264 [no]
194   --enable-libxavs         enable AVS encoding via xavs [no]
195   --enable-libxvid         enable Xvid encoding via xvidcore,
196                            native MPEG-4/Xvid encoder exists [no]
197   --enable-openssl         enable openssl [no]
198   --enable-zlib            enable zlib [autodetect]
199
200 Advanced options (experts only):
201   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
202   --enable-cross-compile   assume a cross-compiler is used
203   --sysroot=PATH           root of cross-build tree
204   --sysinclude=PATH        location of cross-build system headers
205   --target-os=OS           compiler targets OS [$target_os]
206   --target-exec=CMD        command to run executables on target
207   --target-path=DIR        path to view of build directory on target
208   --nm=NM                  use nm tool
209   --ar=AR                  use archive tool AR [$ar_default]
210   --as=AS                  use assembler AS [$as_default]
211   --cc=CC                  use C compiler CC [$cc_default]
212   --ld=LD                  use linker LD
213   --host-cc=HOSTCC         use host C compiler HOSTCC
214   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
215   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
216   --host-libs=HLIBS        use libs HLIBS when linking for host
217   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
218   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
219   --extra-libs=ELIBS       add ELIBS [$ELIBS]
220   --extra-version=STRING   version string suffix []
221   --optflags               override optimization-related compiler flags
222   --build-suffix=SUFFIX    library name suffix []
223   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
224   --arch=ARCH              select architecture [$arch]
225   --cpu=CPU                select the minimum required CPU (affects
226                            instruction selection, may crash on older CPUs)
227   --enable-pic             build position-independent code
228   --enable-sram            allow use of on-chip SRAM
229   --disable-symver         disable symbol versioning
230   --disable-fastdiv        disable table-based division
231   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
232   --disable-safe-bitstream-reader
233                            disable buffer boundary checking in bitreaders
234                            (faster, but may crash)
235   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
236
237 Optimization options (experts only):
238   --disable-asm            disable all assembler optimizations
239   --disable-altivec        disable AltiVec optimizations
240   --disable-amd3dnow       disable 3DNow! optimizations
241   --disable-amd3dnowext    disable 3DNow! extended optimizations
242   --disable-mmx            disable MMX optimizations
243   --disable-mmx2           disable MMX2 optimizations
244   --disable-sse            disable SSE optimizations
245   --disable-ssse3          disable SSSE3 optimizations
246   --disable-avx            disable AVX optimizations
247   --disable-armv5te        disable armv5te optimizations
248   --disable-armv6          disable armv6 optimizations
249   --disable-armv6t2        disable armv6t2 optimizations
250   --disable-armvfp         disable ARM VFP optimizations
251   --disable-mmi            disable MMI optimizations
252   --disable-neon           disable NEON optimizations
253   --disable-vis            disable VIS optimizations
254   --disable-yasm           disable use of yasm assembler
255
256 Developer options (useful when working on Libav itself):
257   --disable-debug          disable debugging symbols
258   --enable-debug=LEVEL     set the debug level [$debuglevel]
259   --disable-optimizations  disable compiler optimizations
260   --enable-extra-warnings  enable more compiler warnings
261   --samples=PATH           location of test samples for FATE, if not set use
262                            \$FATE_SAMPLES at make invocation time.
263   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
264                            should be used only for debugging purposes)
265
266 NOTE: Object files are built at the place where configure is launched.
267 EOF
268   exit 0
269 }
270
271 quotes='""'
272
273 log(){
274     echo "$@" >> $logfile
275 }
276
277 log_file(){
278     log BEGIN $1
279     pr -n -t $1 >> $logfile
280     log END $1
281 }
282
283 echolog(){
284     log "$@"
285     echo "$@"
286 }
287
288 warn(){
289     log "WARNING: $*"
290     WARNINGS="${WARNINGS}WARNING: $*\n"
291 }
292
293 die(){
294     echolog "$@"
295     cat <<EOF
296
297 If you think configure made a mistake, make sure you are using the latest
298 version from Git.  If the latest version fails, report the problem to the
299 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
300 EOF
301     if disabled logging; then
302         cat <<EOF
303 Rerun configure with logging enabled (do not use --disable-logging), and
304 include the log this produces with your report.
305 EOF
306     else
307 cat <<EOF
308 Include the log file "$logfile" produced by configure as this will help
309 solving the problem.
310 EOF
311     fi
312     exit 1
313 }
314
315 # Avoid locale weirdness, besides we really just want to translate ASCII.
316 toupper(){
317     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
318 }
319
320 tolower(){
321     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
322 }
323
324 c_escape(){
325     echo "$*" | sed 's/["\\]/\\\0/g'
326 }
327
328 sh_quote(){
329     v=$(echo "$1" | sed "s/'/'\\\\''/g")
330     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
331     echo "$v"
332 }
333
334 cleanws(){
335     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
336 }
337
338 filter(){
339     pat=$1
340     shift
341     for v; do
342         eval "case $v in $pat) echo $v ;; esac"
343     done
344 }
345
346 filter_out(){
347     pat=$1
348     shift
349     for v; do
350         eval "case $v in $pat) ;; *) echo $v ;; esac"
351     done
352 }
353
354 map(){
355     m=$1
356     shift
357     for v; do eval $m; done
358 }
359
360 set_all(){
361     value=$1
362     shift
363     for var in $*; do
364         eval $var=$value
365     done
366 }
367
368 set_weak(){
369     value=$1
370     shift
371     for var; do
372         eval : \${$var:=$value}
373     done
374 }
375
376 set_safe(){
377     var=$1
378     shift
379     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
380 }
381
382 get_safe(){
383     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
384 }
385
386 pushvar(){
387     for var in $*; do
388         eval level=\${${var}_level:=0}
389         eval ${var}_${level}="\$$var"
390         eval ${var}_level=$(($level+1))
391     done
392 }
393
394 popvar(){
395     for var in $*; do
396         eval level=\${${var}_level:-0}
397         test $level = 0 && continue
398         eval level=$(($level-1))
399         eval $var="\${${var}_${level}}"
400         eval ${var}_level=$level
401         eval unset ${var}_${level}
402     done
403 }
404
405 enable(){
406     set_all yes $*
407 }
408
409 disable(){
410     set_all no $*
411 }
412
413 enable_weak(){
414     set_weak yes $*
415 }
416
417 disable_weak(){
418     set_weak no $*
419 }
420
421 enable_safe(){
422     for var; do
423         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
424     done
425 }
426
427 disable_safe(){
428     for var; do
429         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
430     done
431 }
432
433 do_enable_deep(){
434     for var; do
435         enabled $var && continue
436         eval sel="\$${var}_select"
437         eval sgs="\$${var}_suggest"
438         pushvar var sgs
439         enable_deep $sel
440         popvar sgs
441         enable_deep_weak $sgs
442         popvar var
443     done
444 }
445
446 enable_deep(){
447     do_enable_deep $*
448     enable $*
449 }
450
451 enable_deep_weak(){
452     do_enable_deep $*
453     enable_weak $*
454 }
455
456 enabled(){
457     test "${1#!}" = "$1" && op== || op=!=
458     eval test "x\$${1#!}" $op "xyes"
459 }
460
461 disabled(){
462     test "${1#!}" = "$1" && op== || op=!=
463     eval test "x\$${1#!}" $op "xno"
464 }
465
466 enabled_all(){
467     for opt; do
468         enabled $opt || return 1
469     done
470 }
471
472 disabled_all(){
473     for opt; do
474         disabled $opt || return 1
475     done
476 }
477
478 enabled_any(){
479     for opt; do
480         enabled $opt && return 0
481     done
482 }
483
484 disabled_any(){
485     for opt; do
486         disabled $opt && return 0
487     done
488     return 1
489 }
490
491 set_default(){
492     for opt; do
493         eval : \${$opt:=\$${opt}_default}
494     done
495 }
496
497 is_in(){
498     value=$1
499     shift
500     for var in $*; do
501         [ $var = $value ] && return 0
502     done
503     return 1
504 }
505
506 check_deps(){
507     for cfg; do
508         cfg="${cfg#!}"
509         enabled ${cfg}_checking && die "Circular dependency for $cfg."
510         disabled ${cfg}_checking && continue
511         enable ${cfg}_checking
512
513         eval dep_all="\$${cfg}_deps"
514         eval dep_any="\$${cfg}_deps_any"
515         eval dep_sel="\$${cfg}_select"
516         eval dep_sgs="\$${cfg}_suggest"
517         eval dep_ifa="\$${cfg}_if"
518         eval dep_ifn="\$${cfg}_if_any"
519
520         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
521         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
522         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
523
524         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
525         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
526         enabled_all  $dep_all || disable $cfg
527         enabled_any  $dep_any || disable $cfg
528         disabled_any $dep_sel && disable $cfg
529
530         if enabled $cfg; then
531             eval dep_extralibs="\$${cfg}_extralibs"
532             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
533             enable_deep $dep_sel
534             enable_deep_weak $dep_sgs
535         fi
536
537         disable ${cfg}_checking
538     done
539 }
540
541 print_config_h(){
542     enabled $1 && v=1 || v=0
543     echo "#define $2 $v"
544 }
545
546 print_config_mak(){
547     enabled $1 && v= || v=!
548     echo "$v$2=yes"
549 }
550
551 print_config_asm(){
552     enabled $1 && v=1 || v=0
553     echo "%define $2 $v"
554 }
555
556 print_config(){
557     pfx=$1
558     files=$2
559     shift 2
560     for cfg; do
561         ucname="$(toupper $cfg)"
562         for f in $files; do
563             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
564         done
565     done
566 }
567
568 print_enabled(){
569     test "$1" = -n && end=" " && shift || end="\n"
570     suf=$1
571     shift
572     for v; do
573         enabled $v && printf "%s$end" ${v%$suf};
574     done
575 }
576
577 append(){
578     var=$1
579     shift
580     eval "$var=\"\$$var $*\""
581 }
582
583 prepend(){
584     var=$1
585     shift
586     eval "$var=\"$* \$$var\""
587 }
588
589 add_cppflags(){
590     append CPPFLAGS $($filter_cppflags "$@")
591 }
592
593 add_cflags(){
594     append CFLAGS $($filter_cflags "$@")
595 }
596
597 add_asflags(){
598     append ASFLAGS $($filter_asflags "$@")
599 }
600
601 add_ldflags(){
602     append LDFLAGS "$@"
603 }
604
605 add_extralibs(){
606     prepend extralibs "$@"
607 }
608
609 check_cmd(){
610     log "$@"
611     "$@" >> $logfile 2>&1
612 }
613
614 check_cc(){
615     log check_cc "$@"
616     cat > $TMPC
617     log_file $TMPC
618     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
619 }
620
621 check_cpp(){
622     log check_cpp "$@"
623     cat > $TMPC
624     log_file $TMPC
625     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
626 }
627
628 check_as(){
629     log check_as "$@"
630     cat > $TMPC
631     log_file $TMPC
632     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
633 }
634
635 check_asm(){
636     log check_asm "$@"
637     name="$1"
638     code="$2"
639     shift 2
640     disable $name
641     check_as "$@" <<EOF && enable $name
642 void foo(void){ __asm__ volatile($code); }
643 EOF
644 }
645
646 check_yasm(){
647     log check_yasm "$@"
648     echo "$1" > $TMPS
649     log_file $TMPS
650     shift 1
651     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
652 }
653
654 check_ld(){
655     log check_ld "$@"
656     flags=''
657     libs=''
658     for f; do
659         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
660     done
661     check_cc $($filter_cflags $flags) || return
662     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
663 }
664
665 check_cppflags(){
666     log check_cppflags "$@"
667     set -- $($filter_cppflags "$@")
668     check_cc "$@" <<EOF && append CPPFLAGS "$@"
669 int x;
670 EOF
671 }
672
673 check_cflags(){
674     log check_cflags "$@"
675     set -- $($filter_cflags "$@")
676     check_cc "$@" <<EOF && append CFLAGS "$@"
677 int x;
678 EOF
679 }
680
681 test_ldflags(){
682     log test_ldflags "$@"
683     check_ld "$@" <<EOF
684 int main(void){ return 0; }
685 EOF
686 }
687
688 check_ldflags(){
689     log check_ldflags "$@"
690     test_ldflags "$@" && add_ldflags "$@"
691 }
692
693 check_header(){
694     log check_header "$@"
695     header=$1
696     shift
697     disable_safe $header
698     check_cpp "$@" <<EOF && enable_safe $header
699 #include <$header>
700 int x;
701 EOF
702 }
703
704 check_func(){
705     log check_func "$@"
706     func=$1
707     shift
708     disable $func
709     check_ld "$@" <<EOF && enable $func
710 extern int $func();
711 int main(void){ $func(); }
712 EOF
713 }
714
715 check_mathfunc(){
716     log check_mathfunc "$@"
717     func=$1
718     shift
719     disable $func
720     check_ld "$@" <<EOF && enable $func
721 #include <math.h>
722 float foo(float f) { return $func(f); }
723 int main(void){ return 0; }
724 EOF
725 }
726
727 check_func_headers(){
728     log check_func_headers "$@"
729     headers=$1
730     funcs=$2
731     shift 2
732     {
733         for hdr in $headers; do
734             echo "#include <$hdr>"
735         done
736         for func in $funcs; do
737             echo "long check_$func(void) { return (long) $func; }"
738         done
739         echo "int main(void) { return 0; }"
740     } | check_ld "$@" && enable $funcs && enable_safe $headers
741 }
742
743 check_cpp_condition(){
744     log check_cpp_condition "$@"
745     header=$1
746     condition=$2
747     shift 2
748     check_cpp $($filter_cppflags "$@") <<EOF
749 #include <$header>
750 #if !($condition)
751 #error "unsatisfied condition: $condition"
752 #endif
753 EOF
754 }
755
756 check_lib(){
757     log check_lib "$@"
758     header="$1"
759     func="$2"
760     shift 2
761     check_header $header && check_func $func "$@" && add_extralibs "$@"
762 }
763
764 check_lib2(){
765     log check_lib2 "$@"
766     headers="$1"
767     funcs="$2"
768     shift 2
769     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
770 }
771
772 check_pkg_config(){
773     log check_pkg_config "$@"
774     pkg="$1"
775     headers="$2"
776     funcs="$3"
777     shift 3
778     $pkg_config --exists $pkg || return
779     pkg_cflags=$($pkg_config --cflags $pkg)
780     pkg_libs=$($pkg_config --libs $pkg)
781     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
782         set_safe ${pkg}_cflags $pkg_cflags   &&
783         set_safe ${pkg}_libs   $pkg_libs
784 }
785
786 check_exec(){
787     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
788 }
789
790 check_exec_crash(){
791     code=$(cat)
792
793     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
794     # are safe but may not be available everywhere.  Thus we use
795     # raise(SIGTERM) instead.  The check is run in a subshell so we
796     # can redirect the "Terminated" message from the shell.  SIGBUS
797     # is not defined by standard C so it is used conditionally.
798
799     (check_exec "$@") >> $logfile 2>&1 <<EOF
800 #include <signal.h>
801 static void sighandler(int sig){
802     raise(SIGTERM);
803 }
804 int main(void){
805     signal(SIGILL, sighandler);
806     signal(SIGFPE, sighandler);
807     signal(SIGSEGV, sighandler);
808 #ifdef SIGBUS
809     signal(SIGBUS, sighandler);
810 #endif
811     { $code }
812 }
813 EOF
814 }
815
816 check_type(){
817     log check_type "$@"
818     headers=$1
819     type=$2
820     shift 2
821     disable_safe "$type"
822     incs=""
823     for hdr in $headers; do
824         incs="$incs
825 #include <$hdr>"
826     done
827     check_cc "$@" <<EOF && enable_safe "$type"
828 $incs
829 $type v;
830 EOF
831 }
832
833 check_struct(){
834     log check_type "$@"
835     headers=$1
836     struct=$2
837     member=$3
838     shift 3
839     disable_safe "${struct}_${member}"
840     incs=""
841     for hdr in $headers; do
842         incs="$incs
843 #include <$hdr>"
844     done
845     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
846 $incs
847 const void *p = &(($struct *)0)->$member;
848 EOF
849 }
850
851 require(){
852     name="$1"
853     header="$2"
854     func="$3"
855     shift 3
856     check_lib $header $func "$@" || die "ERROR: $name not found"
857 }
858
859 require2(){
860     name="$1"
861     headers="$2"
862     func="$3"
863     shift 3
864     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
865 }
866
867 require_pkg_config(){
868     pkg="$1"
869     check_pkg_config "$@" || die "ERROR: $pkg not found"
870     add_cflags    $(get_safe ${pkg}_cflags)
871     add_extralibs $(get_safe ${pkg}_libs)
872 }
873
874 check_host_cc(){
875     log check_host_cc "$@"
876     cat > $TMPC
877     log_file $TMPC
878     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
879 }
880
881 check_host_cflags(){
882     log check_host_cflags "$@"
883     check_host_cc "$@" <<EOF && append host_cflags "$@"
884 int x;
885 EOF
886 }
887
888 apply(){
889     file=$1
890     shift
891     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
892 }
893
894 cp_if_changed(){
895     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
896     mkdir -p "$(dirname $2)"
897     cp -f "$1" "$2"
898 }
899
900 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
901 # system-dependent things.
902
903 COMPONENT_LIST="
904     bsfs
905     decoders
906     demuxers
907     encoders
908     filters
909     hwaccels
910     indevs
911     muxers
912     outdevs
913     parsers
914     protocols
915 "
916
917 PROGRAM_LIST="
918     avconv
919     avplay
920     avprobe
921     avserver
922 "
923
924 CONFIG_LIST="
925     $COMPONENT_LIST
926     $PROGRAM_LIST
927     ac3dsp
928     avcodec
929     avdevice
930     avfilter
931     avformat
932     avisynth
933     bzlib
934     dct
935     doc
936     dwt
937     dxva2
938     fastdiv
939     fft
940     frei0r
941     gnutls
942     gpl
943     gray
944     hardcoded_tables
945     libcdio
946     libdc1394
947     libdirac
948     libfaac
949     libfreetype
950     libgsm
951     libmp3lame
952     libnut
953     libopencore_amrnb
954     libopencore_amrwb
955     libopencv
956     libopenjpeg
957     libpulse
958     librtmp
959     libschroedinger
960     libspeex
961     libtheora
962     libvo_aacenc
963     libvo_amrwbenc
964     libvorbis
965     libvpx
966     libx264
967     libxavs
968     libxvid
969     lsp
970     mdct
971     memalign_hack
972     mpegaudiodsp
973     network
974     nonfree
975     openssl
976     pic
977     rdft
978     rtpdec
979     runtime_cpudetect
980     safe_bitstream_reader
981     shared
982     sinewin
983     small
984     sram
985     static
986     swscale
987     swscale_alpha
988     thumb
989     vaapi
990     vda
991     vdpau
992     version3
993     xmm_clobber_test
994     x11grab
995     zlib
996 "
997
998 THREADS_LIST='
999     pthreads
1000     w32threads
1001 '
1002
1003 ARCH_LIST='
1004     alpha
1005     arm
1006     avr32
1007     avr32_ap
1008     avr32_uc
1009     bfin
1010     ia64
1011     m68k
1012     mips
1013     mips64
1014     parisc
1015     ppc
1016     ppc64
1017     s390
1018     sh4
1019     sparc
1020     sparc64
1021     tomi
1022     x86
1023     x86_32
1024     x86_64
1025 '
1026
1027 ARCH_EXT_LIST='
1028     altivec
1029     amd3dnow
1030     amd3dnowext
1031     armv5te
1032     armv6
1033     armv6t2
1034     armvfp
1035     avx
1036     mmi
1037     mmx
1038     mmx2
1039     neon
1040     ppc4xx
1041     sse
1042     ssse3
1043     vfpv3
1044     vis
1045 '
1046
1047 HAVE_LIST_PUB='
1048     bigendian
1049     fast_unaligned
1050 '
1051
1052 HAVE_LIST="
1053     $ARCH_EXT_LIST
1054     $HAVE_LIST_PUB
1055     $THREADS_LIST
1056     aligned_stack
1057     alsa_asoundlib_h
1058     altivec_h
1059     arpa_inet_h
1060     asm_mod_y
1061     attribute_may_alias
1062     attribute_packed
1063     closesocket
1064     cmov
1065     dcbzl
1066     dev_bktr_ioctl_bt848_h
1067     dev_bktr_ioctl_meteor_h
1068     dev_ic_bt8xx_h
1069     dev_video_bktr_ioctl_bt848_h
1070     dev_video_meteor_ioctl_meteor_h
1071     dlfcn_h
1072     dlopen
1073     dos_paths
1074     ebp_available
1075     ebx_available
1076     exp2
1077     exp2f
1078     fast_64bit
1079     fast_clz
1080     fast_cmov
1081     fcntl
1082     fork
1083     getaddrinfo
1084     gethrtime
1085     GetProcessAffinityMask
1086     GetProcessMemoryInfo
1087     GetProcessTimes
1088     getrusage
1089     gnu_as
1090     ibm_asm
1091     inet_aton
1092     inline_asm
1093     isatty
1094     ldbrx
1095     libdc1394_1
1096     libdc1394_2
1097     llrint
1098     llrintf
1099     local_aligned_16
1100     local_aligned_8
1101     localtime_r
1102     log2
1103     log2f
1104     loongson
1105     lrint
1106     lrintf
1107     lzo1x_999_compress
1108     machine_ioctl_bt848_h
1109     machine_ioctl_meteor_h
1110     malloc_h
1111     MapViewOfFile
1112     memalign
1113     mkstemp
1114     mmap
1115     poll_h
1116     posix_memalign
1117     round
1118     roundf
1119     sched_getaffinity
1120     sdl
1121     sdl_video_size
1122     setmode
1123     setrlimit
1124     sndio_h
1125     socklen_t
1126     soundcard_h
1127     strerror_r
1128     strptime
1129     strtok_r
1130     struct_addrinfo
1131     struct_ipv6_mreq
1132     struct_rusage_ru_maxrss
1133     struct_sockaddr_in6
1134     struct_sockaddr_sa_len
1135     struct_sockaddr_storage
1136     struct_v4l2_frmivalenum_discrete
1137     symver
1138     symver_asm_label
1139     symver_gnu_asm
1140     sysconf
1141     sysctl
1142     sys_mman_h
1143     sys_param_h
1144     sys_resource_h
1145     sys_select_h
1146     sys_soundcard_h
1147     sys_videoio_h
1148     threads
1149     trunc
1150     truncf
1151     vfp_args
1152     VirtualAlloc
1153     winsock2_h
1154     xform_asm
1155     xmm_clobbers
1156     yasm
1157 "
1158
1159 # options emitted with CONFIG_ prefix but not available on command line
1160 CONFIG_EXTRA="
1161     aandct
1162     avutil
1163     golomb
1164     gplv3
1165     h264chroma
1166     h264dsp
1167     h264pred
1168     huffman
1169     lgplv3
1170     lpc
1171 "
1172
1173 CMDLINE_SELECT="
1174     $ARCH_EXT_LIST
1175     $CONFIG_LIST
1176     $THREADS_LIST
1177     asm
1178     cross_compile
1179     debug
1180     extra_warnings
1181     logging
1182     optimizations
1183     symver
1184     yasm
1185 "
1186
1187 PATHS_LIST='
1188     bindir
1189     datadir
1190     incdir
1191     libdir
1192     mandir
1193     prefix
1194     shlibdir
1195 '
1196
1197 CMDLINE_SET="
1198     $PATHS_LIST
1199     ar
1200     arch
1201     as
1202     build_suffix
1203     cc
1204     cpu
1205     cross_prefix
1206     dep_cc
1207     extra_version
1208     host_cc
1209     host_cflags
1210     host_ldflags
1211     host_libs
1212     host_os
1213     ld
1214     logfile
1215     malloc_prefix
1216     nm
1217     optflags
1218     pkg_config
1219     samples
1220     sysinclude
1221     sysroot
1222     target_exec
1223     target_os
1224     target_path
1225 "
1226
1227 CMDLINE_APPEND="
1228     extra_cflags
1229 "
1230
1231 # code dependency declarations
1232
1233 # architecture extensions
1234
1235 armv5te_deps="arm"
1236 armv6_deps="arm"
1237 armv6t2_deps="arm"
1238 armvfp_deps="arm"
1239 neon_deps="arm"
1240 vfpv3_deps="armvfp"
1241
1242 mmi_deps="mips"
1243
1244 altivec_deps="ppc"
1245 ppc4xx_deps="ppc"
1246
1247 vis_deps="sparc"
1248
1249 x86_64_suggest="cmov fast_cmov"
1250 amd3dnow_deps="mmx"
1251 amd3dnowext_deps="amd3dnow"
1252 mmx_deps="x86"
1253 mmx2_deps="mmx"
1254 sse_deps="mmx"
1255 ssse3_deps="sse"
1256 avx_deps="ssse3"
1257
1258 aligned_stack_if_any="ppc x86"
1259 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1260 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1261 fast_unaligned_if_any="armv6 ppc x86"
1262
1263 inline_asm_deps="!tms470"
1264 need_memalign="altivec neon sse"
1265
1266 symver_if_any="symver_asm_label symver_gnu_asm"
1267
1268 # subsystems
1269 dct_select="rdft"
1270 mdct_select="fft"
1271 rdft_select="fft"
1272 mpegaudiodsp_select="dct"
1273
1274 # decoders / encoders / hardware accelerators
1275 aac_decoder_select="mdct sinewin"
1276 aac_encoder_select="mdct sinewin"
1277 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1278 ac3_decoder_select="mdct ac3dsp ac3_parser"
1279 ac3_encoder_select="mdct ac3dsp"
1280 ac3_fixed_encoder_select="mdct ac3dsp"
1281 alac_encoder_select="lpc"
1282 amrnb_decoder_select="lsp"
1283 amrwb_decoder_select="lsp"
1284 atrac1_decoder_select="mdct sinewin"
1285 atrac3_decoder_select="mdct"
1286 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1287 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1288 cavs_decoder_select="golomb"
1289 cook_decoder_select="mdct sinewin"
1290 cscd_decoder_suggest="zlib"
1291 dca_decoder_select="mdct"
1292 dnxhd_encoder_select="aandct"
1293 dxa_decoder_select="zlib"
1294 eac3_decoder_select="ac3_decoder"
1295 eac3_encoder_select="mdct ac3dsp"
1296 eamad_decoder_select="aandct"
1297 eatgq_decoder_select="aandct"
1298 eatqi_decoder_select="aandct"
1299 ffv1_decoder_select="golomb"
1300 flac_decoder_select="golomb"
1301 flac_encoder_select="golomb lpc"
1302 flashsv_decoder_select="zlib"
1303 flashsv_encoder_select="zlib"
1304 flashsv2_decoder_select="zlib"
1305 flv_decoder_select="h263_decoder"
1306 flv_encoder_select="h263_encoder"
1307 fraps_decoder_select="huffman"
1308 h261_encoder_select="aandct"
1309 h263_decoder_select="h263_parser"
1310 h263_encoder_select="aandct"
1311 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1312 h263i_decoder_select="h263_decoder"
1313 h263p_encoder_select="h263_encoder"
1314 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1315 h264_dxva2_hwaccel_deps="dxva2api_h"
1316 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1317 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1318 h264_vda_hwaccel_select="vda h264_decoder"
1319 h264_vdpau_decoder_select="vdpau h264_decoder"
1320 imc_decoder_select="fft mdct sinewin"
1321 jpegls_decoder_select="golomb"
1322 jpegls_encoder_select="golomb"
1323 ljpeg_encoder_select="aandct"
1324 loco_decoder_select="golomb"
1325 mjpeg_encoder_select="aandct"
1326 mlp_decoder_select="mlp_parser"
1327 mp1_decoder_select="mpegaudiodsp"
1328 mp1float_decoder_select="mpegaudiodsp"
1329 mp2_decoder_select="mpegaudiodsp"
1330 mp2float_decoder_select="mpegaudiodsp"
1331 mp3_decoder_select="mpegaudiodsp"
1332 mp3adu_decoder_select="mpegaudiodsp"
1333 mp3adufloat_decoder_select="mpegaudiodsp"
1334 mp3float_decoder_select="mpegaudiodsp"
1335 mp3on4_decoder_select="mpegaudiodsp"
1336 mp3on4float_decoder_select="mpegaudiodsp"
1337 mpc7_decoder_select="mpegaudiodsp"
1338 mpc8_decoder_select="mpegaudiodsp"
1339 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1340 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1341 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1342 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1343 mpeg1video_encoder_select="aandct"
1344 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1345 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1346 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1347 mpeg2video_encoder_select="aandct"
1348 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1349 mpeg4_encoder_select="h263_encoder"
1350 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1351 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1352 msmpeg4v1_decoder_select="h263_decoder"
1353 msmpeg4v1_encoder_select="h263_encoder"
1354 msmpeg4v2_decoder_select="h263_decoder"
1355 msmpeg4v2_encoder_select="h263_encoder"
1356 msmpeg4v3_decoder_select="h263_decoder"
1357 msmpeg4v3_encoder_select="h263_encoder"
1358 nellymoser_decoder_select="mdct sinewin"
1359 nellymoser_encoder_select="mdct sinewin"
1360 png_decoder_select="zlib"
1361 png_encoder_select="zlib"
1362 qcelp_decoder_select="lsp"
1363 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1364 ra_144_encoder_select="lpc"
1365 rv10_decoder_select="h263_decoder"
1366 rv10_encoder_select="h263_encoder"
1367 rv20_decoder_select="h263_decoder"
1368 rv20_encoder_select="h263_encoder"
1369 rv30_decoder_select="golomb h264chroma h264pred"
1370 rv40_decoder_select="golomb h264chroma h264pred"
1371 shorten_decoder_select="golomb"
1372 sipr_decoder_select="lsp"
1373 snow_decoder_select="dwt"
1374 snow_encoder_select="aandct dwt"
1375 svq1_encoder_select="aandct"
1376 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1377 svq3_decoder_suggest="zlib"
1378 theora_decoder_select="vp3_decoder"
1379 tiff_decoder_suggest="zlib"
1380 tiff_encoder_suggest="zlib"
1381 truehd_decoder_select="mlp_decoder"
1382 tscc_decoder_select="zlib"
1383 twinvq_decoder_select="mdct lsp sinewin"
1384 vc1_decoder_select="h263_decoder h264chroma"
1385 vc1_dxva2_hwaccel_deps="dxva2api_h"
1386 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1387 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1388 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1389 vc1image_decoder_select="vc1_decoder"
1390 vorbis_decoder_select="mdct"
1391 vorbis_encoder_select="mdct"
1392 vp6_decoder_select="huffman"
1393 vp6a_decoder_select="vp6_decoder"
1394 vp6f_decoder_select="vp6_decoder"
1395 vp8_decoder_select="h264pred"
1396 wmapro_decoder_select="mdct sinewin"
1397 wmav1_decoder_select="mdct sinewin"
1398 wmav1_encoder_select="mdct sinewin"
1399 wmav2_decoder_select="mdct sinewin"
1400 wmav2_encoder_select="mdct sinewin"
1401 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1402 wmv1_decoder_select="h263_decoder"
1403 wmv1_encoder_select="h263_encoder"
1404 wmv2_decoder_select="h263_decoder"
1405 wmv2_encoder_select="h263_encoder"
1406 wmv3_decoder_select="vc1_decoder"
1407 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1408 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1409 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1410 wmv3image_decoder_select="wmv3_decoder"
1411 zerocodec_decoder_select="zlib"
1412 zlib_decoder_select="zlib"
1413 zlib_encoder_select="zlib"
1414 zmbv_decoder_select="zlib"
1415 zmbv_encoder_select="zlib"
1416
1417 vaapi_deps="va_va_h"
1418 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1419 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1420
1421 # parsers
1422 h264_parser_select="golomb h264chroma h264dsp h264pred"
1423
1424 # external libraries
1425 libdirac_decoder_deps="libdirac !libschroedinger"
1426 libfaac_encoder_deps="libfaac"
1427 libgsm_decoder_deps="libgsm"
1428 libgsm_encoder_deps="libgsm"
1429 libgsm_ms_decoder_deps="libgsm"
1430 libgsm_ms_encoder_deps="libgsm"
1431 libmp3lame_encoder_deps="libmp3lame"
1432 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1433 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1434 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1435 libopenjpeg_decoder_deps="libopenjpeg"
1436 libschroedinger_decoder_deps="libschroedinger"
1437 libschroedinger_encoder_deps="libschroedinger"
1438 libspeex_decoder_deps="libspeex"
1439 libspeex_encoder_deps="libspeex"
1440 libtheora_encoder_deps="libtheora"
1441 libvo_aacenc_encoder_deps="libvo_aacenc"
1442 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1443 libvorbis_encoder_deps="libvorbis"
1444 libvpx_decoder_deps="libvpx"
1445 libvpx_encoder_deps="libvpx"
1446 libx264_encoder_deps="libx264"
1447 libxavs_encoder_deps="libxavs"
1448 libxvid_encoder_deps="libxvid"
1449
1450 # demuxers / muxers
1451 ac3_demuxer_select="ac3_parser"
1452 asf_stream_muxer_select="asf_muxer"
1453 avisynth_demuxer_deps="avisynth"
1454 dirac_demuxer_select="dirac_parser"
1455 eac3_demuxer_select="ac3_parser"
1456 flac_demuxer_select="flac_parser"
1457 ipod_muxer_select="mov_muxer"
1458 libnut_demuxer_deps="libnut"
1459 libnut_muxer_deps="libnut"
1460 matroska_audio_muxer_select="matroska_muxer"
1461 matroska_demuxer_suggest="zlib bzlib"
1462 mov_demuxer_suggest="zlib"
1463 mp3_demuxer_select="mpegaudio_parser"
1464 mp4_muxer_select="mov_muxer"
1465 mpegtsraw_demuxer_select="mpegts_demuxer"
1466 mxf_d10_muxer_select="mxf_muxer"
1467 ogg_demuxer_select="golomb"
1468 psp_muxer_select="mov_muxer"
1469 rtp_demuxer_select="sdp_demuxer"
1470 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1471 rtsp_demuxer_select="http_protocol rtpdec"
1472 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1473 sap_demuxer_select="sdp_demuxer"
1474 sap_muxer_select="rtp_muxer rtp_protocol"
1475 sdp_demuxer_select="rtpdec"
1476 spdif_muxer_select="aac_parser"
1477 tg2_muxer_select="mov_muxer"
1478 tgp_muxer_select="mov_muxer"
1479 w64_demuxer_deps="wav_demuxer"
1480
1481 # indevs / outdevs
1482 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1483 alsa_outdev_deps="alsa_asoundlib_h"
1484 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1485 dv1394_indev_deps="dv1394 dv_demuxer"
1486 fbdev_indev_deps="linux_fb_h"
1487 jack_indev_deps="jack_jack_h"
1488 libcdio_indev_deps="libcdio"
1489 libdc1394_indev_deps="libdc1394"
1490 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1491 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1492 pulse_indev_deps="libpulse"
1493 sndio_indev_deps="sndio_h"
1494 sndio_outdev_deps="sndio_h"
1495 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1496 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1497 vfwcap_indev_extralibs="-lavicap32"
1498 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1499 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1500
1501 # protocols
1502 gopher_protocol_deps="network"
1503 httpproxy_protocol_deps="network"
1504 httpproxy_protocol_select="tcp_protocol"
1505 http_protocol_deps="network"
1506 http_protocol_select="tcp_protocol"
1507 https_protocol_select="tls_protocol"
1508 librtmp_protocol_deps="librtmp"
1509 librtmpe_protocol_deps="librtmp"
1510 librtmps_protocol_deps="librtmp"
1511 librtmpt_protocol_deps="librtmp"
1512 librtmpte_protocol_deps="librtmp"
1513 mmsh_protocol_select="http_protocol"
1514 mmst_protocol_deps="network"
1515 rtmp_protocol_deps="!librtmp_protocol"
1516 rtmp_protocol_select="tcp_protocol"
1517 rtp_protocol_select="udp_protocol"
1518 tcp_protocol_deps="network"
1519 tls_protocol_deps_any="openssl gnutls"
1520 tls_protocol_select="tcp_protocol"
1521 udp_protocol_deps="network"
1522
1523 # filters
1524 blackframe_filter_deps="gpl"
1525 boxblur_filter_deps="gpl"
1526 cropdetect_filter_deps="gpl"
1527 delogo_filter_deps="gpl"
1528 drawtext_filter_deps="libfreetype"
1529 frei0r_filter_deps="frei0r dlopen strtok_r"
1530 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1531 hqdn3d_filter_deps="gpl"
1532 ocv_filter_deps="libopencv"
1533 scale_filter_deps="swscale"
1534 yadif_filter_deps="gpl"
1535
1536 # libraries
1537 avdevice_deps="avcodec avformat"
1538 avformat_deps="avcodec"
1539
1540 # programs
1541 avconv_deps="avcodec avformat swscale"
1542 avplay_deps="avcodec avformat swscale sdl"
1543 avplay_select="rdft"
1544 avprobe_deps="avcodec avformat"
1545 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1546 avserver_extralibs='$ldl'
1547
1548 doc_deps="texi2html"
1549
1550 # tests
1551
1552 test_deps(){
1553     suf1=$1
1554     suf2=$2
1555     shift 2
1556     for v; do
1557         dep=${v%=*}
1558         tests=${v#*=}
1559         for name in ${tests}; do
1560             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1561         done
1562     done
1563 }
1564
1565 mxf_d10_test_deps="avfilter"
1566 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1567
1568 test_deps _encoder _decoder                                             \
1569     adpcm_ima_qt                                                        \
1570     adpcm_ima_wav                                                       \
1571     adpcm_ms                                                            \
1572     adpcm_swf                                                           \
1573     adpcm_yamaha=adpcm_yam                                              \
1574     alac                                                                \
1575     asv1                                                                \
1576     asv2                                                                \
1577     bmp                                                                 \
1578     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1579     dvvideo="dv dv_411 dv50"                                            \
1580     ffv1                                                                \
1581     flac                                                                \
1582     flashsv                                                             \
1583     flv                                                                 \
1584     adpcm_g726=g726                                                     \
1585     gif                                                                 \
1586     h261                                                                \
1587     h263="h263 h263p"                                                   \
1588     huffyuv                                                             \
1589     jpegls                                                              \
1590     mjpeg="jpg mjpeg ljpeg"                                             \
1591     mp2                                                                 \
1592     mpeg1video="mpeg mpeg1b"                                            \
1593     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1594     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1595     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1596     mpeg4="mpeg4thread error rc"                                        \
1597     msmpeg4v3=msmpeg4                                                   \
1598     msmpeg4v2                                                           \
1599     pbm=pbmpipe                                                         \
1600     pcx                                                                 \
1601     pgm="pgm pgmpipe"                                                   \
1602     png                                                                 \
1603     ppm="ppm ppmpipe"                                                   \
1604     rawvideo="rgb yuv"                                                  \
1605     roq                                                                 \
1606     rv10                                                                \
1607     rv20                                                                \
1608     sgi                                                                 \
1609     snow="snow snowll"                                                  \
1610     svq1                                                                \
1611     targa=tga                                                           \
1612     tiff                                                                \
1613     wmav1                                                               \
1614     wmav2                                                               \
1615     wmv1                                                                \
1616     wmv2                                                                \
1617
1618 test_deps _muxer _demuxer                                               \
1619     aiff                                                                \
1620     pcm_alaw=alaw                                                       \
1621     asf                                                                 \
1622     au                                                                  \
1623     avi                                                                 \
1624     dv=dv_fmt                                                           \
1625     ffm                                                                 \
1626     flv=flv_fmt                                                         \
1627     gxf                                                                 \
1628     matroska=mkv                                                        \
1629     mmf                                                                 \
1630     mov                                                                 \
1631     pcm_mulaw=mulaw                                                     \
1632     mxf="mxf mxf_d10"                                                   \
1633     nut                                                                 \
1634     ogg                                                                 \
1635     rawvideo=pixfmt                                                     \
1636     rm                                                                  \
1637     swf                                                                 \
1638     mpegts=ts                                                           \
1639     voc                                                                 \
1640     wav                                                                 \
1641     yuv4mpegpipe=yuv4mpeg                                               \
1642
1643 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1644 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1645
1646 # default parameters
1647
1648 logfile="config.log"
1649
1650 # installation paths
1651 prefix_default="/usr/local"
1652 bindir_default='${prefix}/bin'
1653 datadir_default='${prefix}/share/avconv'
1654 incdir_default='${prefix}/include'
1655 libdir_default='${prefix}/lib'
1656 mandir_default='${prefix}/share/man'
1657 shlibdir_default="$libdir_default"
1658
1659 # toolchain
1660 ar_default="ar"
1661 cc_default="gcc"
1662 cc_version=\"unknown\"
1663 host_cc_default="gcc"
1664 ln_s="ln -sf"
1665 nm_default="nm"
1666 objformat="elf"
1667 pkg_config_default=pkg-config
1668 ranlib="ranlib"
1669 yasmexe="yasm"
1670
1671 nm_opts='-g'
1672 nogas=":"
1673
1674 # machine
1675 arch_default=$(uname -m)
1676 cpu="generic"
1677
1678 # OS
1679 target_os_default=$(tolower $(uname -s))
1680 host_os=$target_os_default
1681
1682 # configurable options
1683 enable $PROGRAM_LIST
1684
1685 enable avcodec
1686 enable avdevice
1687 enable avfilter
1688 enable avformat
1689 enable avutil
1690 enable swscale
1691
1692 enable asm
1693 enable debug
1694 enable doc
1695 enable fastdiv
1696 enable network
1697 enable optimizations
1698 enable safe_bitstream_reader
1699 enable static
1700 enable swscale_alpha
1701
1702 # build settings
1703 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1704 AVSERVERLDFLAGS=-Wl,-E
1705 LIBPREF="lib"
1706 LIBSUF=".a"
1707 FULLNAME='$(NAME)$(BUILDSUF)'
1708 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1709 SLIBPREF="lib"
1710 SLIBSUF=".so"
1711 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1712 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1713 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1714 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1715 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1716 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1717
1718 AS_O='-o $@'
1719 CC_O='-o $@'
1720
1721 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1722 host_libs='-lm'
1723
1724 target_path='$(CURDIR)'
1725
1726 # since the object filename is not given with the -MM flag, the compiler
1727 # is only able to print the basename, and we must add the path ourselves
1728 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1729 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1730
1731 # find source path
1732 if test -f configure; then
1733     source_path=.
1734 else
1735     source_path=$(cd $(dirname "$0"); pwd)
1736     echo "$source_path" | grep -q '[[:blank:]]' &&
1737         die "Out of tree builds are impossible with whitespace in source path."
1738     test -e "$source_path/config.h" &&
1739         die "Out of tree builds are impossible with config.h in source dir."
1740 fi
1741
1742 for v in "$@"; do
1743     r=${v#*=}
1744     l=${v%"$r"}
1745     r=$(sh_quote "$r")
1746     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1747 done
1748
1749 find_things(){
1750     thing=$1
1751     pattern=$2
1752     file=$source_path/$3
1753     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1754 }
1755
1756 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1757 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1758 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1759 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1760 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1761 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1762 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1763 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1764 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1765 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1766 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1767
1768 ALL_COMPONENTS="
1769     $BSF_LIST
1770     $DECODER_LIST
1771     $DEMUXER_LIST
1772     $ENCODER_LIST
1773     $FILTER_LIST
1774     $HWACCEL_LIST
1775     $INDEV_LIST
1776     $MUXER_LIST
1777     $OUTDEV_LIST
1778     $PARSER_LIST
1779     $PROTOCOL_LIST
1780 "
1781
1782 find_tests(){
1783     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1784 }
1785
1786 ACODEC_TESTS=$(find_tests acodec)
1787 VCODEC_TESTS=$(find_tests vsynth1)
1788 LAVF_TESTS=$(find_tests lavf)
1789 LAVFI_TESTS=$(find_tests lavfi)
1790 SEEK_TESTS=$(find_tests seek seek_)
1791
1792 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1793
1794 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1795
1796 for n in $COMPONENT_LIST; do
1797     v=$(toupper ${n%s})_LIST
1798     eval enable \$$v
1799     eval ${n}_if_any="\$$v"
1800 done
1801
1802 enable $ARCH_EXT_LIST $ALL_TESTS
1803
1804 die_unknown(){
1805     echo "Unknown option \"$1\"."
1806     echo "See $0 --help for available options."
1807     exit 1
1808 }
1809
1810 show_list() {
1811     suffix=_$1
1812     shift
1813     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1814     exit 0
1815 }
1816
1817 for opt do
1818     optval="${opt#*=}"
1819     case "$opt" in
1820     --extra-ldflags=*) add_ldflags $optval
1821     ;;
1822     --extra-libs=*) add_extralibs $optval
1823     ;;
1824     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1825     ;;
1826     --enable-debug=*) debuglevel="$optval"
1827     ;;
1828     --disable-everything)
1829     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1830     ;;
1831     --enable-*=*|--disable-*=*)
1832     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1833     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1834     eval list=\$$(toupper $thing)_LIST
1835     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1836     $action $(filter "$name" $list)
1837     ;;
1838     --enable-?*|--disable-?*)
1839     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1840     if is_in $option $COMPONENT_LIST; then
1841         test $action = disable && action=unset
1842         eval $action \$$(toupper ${option%s})_LIST
1843     elif is_in $option $CMDLINE_SELECT; then
1844         $action $option
1845     else
1846         die_unknown $opt
1847     fi
1848     ;;
1849     --list-*)
1850         NAME="${opt#--list-}"
1851         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1852         NAME=${NAME%s}
1853         eval show_list $NAME \$$(toupper $NAME)_LIST
1854     ;;
1855     --help|-h) show_help
1856     ;;
1857     *)
1858     optname="${opt%%=*}"
1859     optname="${optname#--}"
1860     optname=$(echo "$optname" | sed 's/-/_/g')
1861     if is_in $optname $CMDLINE_SET; then
1862         eval $optname='$optval'
1863     elif is_in $optname $CMDLINE_APPEND; then
1864         append $optname "$optval"
1865     else
1866          die_unknown $opt
1867     fi
1868     ;;
1869     esac
1870 done
1871
1872 disabled logging && logfile=/dev/null
1873
1874 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1875 set >> $logfile
1876
1877 test -n "$cross_prefix" && enable cross_compile
1878
1879 if enabled cross_compile; then
1880     test -n "$arch" && test -n "$target_os" ||
1881         die "Must specify target arch and OS when cross-compiling"
1882 fi
1883
1884 set_default arch target_os
1885
1886 ar_default="${cross_prefix}${ar_default}"
1887 cc_default="${cross_prefix}${cc_default}"
1888 nm_default="${cross_prefix}${nm_default}"
1889 pkg_config_default="${cross_prefix}${pkg_config_default}"
1890 ranlib="${cross_prefix}${ranlib}"
1891
1892 sysinclude_default="${sysroot}/usr/include"
1893
1894 set_default cc nm pkg_config sysinclude
1895 enabled cross_compile || host_cc_default=$cc
1896 set_default host_cc
1897
1898 if ! $pkg_config --version >/dev/null 2>&1; then
1899     warn "$pkg_config not found, library detection may fail."
1900     pkg_config=false
1901 fi
1902
1903 exesuf() {
1904     case $1 in
1905         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1906     esac
1907 }
1908
1909 EXESUF=$(exesuf $target_os)
1910 HOSTEXESUF=$(exesuf $host_os)
1911
1912 # set temporary file name
1913 : ${TMPDIR:=$TEMPDIR}
1914 : ${TMPDIR:=$TMP}
1915 : ${TMPDIR:=/tmp}
1916
1917 if ! check_cmd mktemp -u XXXXXX; then
1918     # simple replacement for missing mktemp
1919     # NOT SAFE FOR GENERAL USE
1920     mktemp(){
1921         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1922     }
1923 fi
1924
1925 tmpfile(){
1926     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1927         (set -C; exec > $tmp) 2>/dev/null ||
1928         die "Unable to create temporary file in $TMPDIR."
1929     append TMPFILES $tmp
1930     eval $1=$tmp
1931 }
1932
1933 trap 'rm -f -- $TMPFILES' EXIT
1934
1935 tmpfile TMPASM .asm
1936 tmpfile TMPC   .c
1937 tmpfile TMPE   $EXESUF
1938 tmpfile TMPH   .h
1939 tmpfile TMPO   .o
1940 tmpfile TMPS   .S
1941 tmpfile TMPSH  .sh
1942 tmpfile TMPV   .ver
1943
1944 unset -f mktemp
1945
1946 chmod +x $TMPE
1947
1948 # make sure we can execute files in $TMPDIR
1949 cat > $TMPSH 2>> $logfile <<EOF
1950 #! /bin/sh
1951 EOF
1952 chmod +x $TMPSH >> $logfile 2>&1
1953 if ! $TMPSH >> $logfile 2>&1; then
1954     cat <<EOF
1955 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1956 variable to another directory and make sure that it is not mounted noexec.
1957 EOF
1958     die "Sanity test failed."
1959 fi
1960
1961 filter_asflags=echo
1962 filter_cflags=echo
1963 filter_cppflags=echo
1964
1965 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1966     cc_type=llvm_gcc
1967     cc_version=__VERSION__
1968     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1969     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1970     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1971     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1972     speed_cflags='-O3'
1973     size_cflags='-Os'
1974 elif $cc -v 2>&1 | grep -qi ^gcc; then
1975     cc_type=gcc
1976     cc_version=__VERSION__
1977     gcc_version=$($cc --version | head -n1)
1978     gcc_basever=$($cc -dumpversion)
1979     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1980     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1981     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1982     if ! $cc -dumpversion | grep -q '^2\.'; then
1983         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1984         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1985     fi
1986     speed_cflags='-O3'
1987     size_cflags='-Os'
1988 elif $cc --version 2>/dev/null | grep -q Intel; then
1989     cc_type=icc
1990     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1991     cc_ident=$($cc --version | head -n1)
1992     icc_version=$($cc -dumpversion)
1993     CC_DEPFLAGS='-MMD'
1994     AS_DEPFLAGS='-MMD'
1995     speed_cflags='-O3'
1996     size_cflags='-Os'
1997     noopt_cflags='-O1'
1998 elif $cc -v 2>&1 | grep -q xlc; then
1999     cc_type=xlc
2000     cc_version="AV_STRINGIFY(__IBMC__)"
2001     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2002     speed_cflags='-O5'
2003     size_cflags='-O5 -qcompact'
2004 elif $cc -V 2>/dev/null | grep -q Compaq; then
2005     cc_type=ccc
2006     cc_version="AV_STRINGIFY(__DECC_VER)"
2007     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2008     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2009     debuglevel=3
2010     add_ldflags -Wl,-z,now # calls to libots crash without this
2011     speed_cflags='-fast'
2012     size_cflags='-O1'
2013 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2014     test -d "$sysroot" || die "No valid sysroot specified."
2015     cc_type=armcc
2016     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2017     cc_ident=$($cc --vsn | head -n1)
2018     armcc_conf="$PWD/armcc.conf"
2019     $cc --arm_linux_configure                 \
2020         --arm_linux_config_file="$armcc_conf" \
2021         --configure_sysroot="$sysroot"        \
2022         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2023         die "Error creating armcc configuration file."
2024     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2025     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2026     as_default="${cross_prefix}gcc"
2027     CC_DEPFLAGS='-MMD'
2028     AS_DEPFLAGS='-MMD'
2029     speed_cflags='-O3'
2030     size_cflags='-Os'
2031     filter_asflags="filter_out -W${armcc_opt}*"
2032 elif $cc -version 2>/dev/null | grep -q TMS470; then
2033     cc_type=tms470
2034     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2035     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2036     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2037     CC_O='-fr=$(@D)'
2038     as_default="${cross_prefix}gcc"
2039     ld_default="${cross_prefix}gcc"
2040     TMPO=$(basename $TMPC .c).o
2041     append TMPFILES $TMPO
2042     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2043     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2044     AS_DEPFLAGS='-MMD'
2045     speed_cflags='-O3 -mf=5'
2046     size_cflags='-O3 -mf=2'
2047     filter_cflags=tms470_flags
2048     tms470_flags(){
2049         for flag; do
2050             case $flag in
2051                 -march=*|-mcpu=*)
2052                     case "${flag#*=}" in
2053                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2054                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2055                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2056                         armv6*|arm11*)          echo -mv=6   ;;
2057                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2058                                                 echo -mv=5e  ;;
2059                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2060                     esac
2061                     ;;
2062                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2063                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2064                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2065                 -msoft-float)   echo --float_support=vfplib       ;;
2066                 -O[0-3]|-mf=*)  echo $flag                        ;;
2067                 -g)             echo -g -mn                       ;;
2068                 -pds=*)         echo $flag                        ;;
2069             esac
2070         done
2071     }
2072 elif $cc -v 2>&1 | grep -q clang; then
2073     cc_type=clang
2074     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2075         cc_version=__clang_version__ || cc_version=__VERSION__
2076     cc_ident=$($cc --version | head -n1)
2077     CC_DEPFLAGS='-MMD'
2078     AS_DEPFLAGS='-MMD'
2079     speed_cflags='-O3'
2080     size_cflags='-Os'
2081 elif $cc -V 2>&1 | grep -q Sun; then
2082     cc_type=suncc
2083     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2084     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2085     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2086     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2087     add_ldflags -xc99
2088     speed_cflags='-O5'
2089     size_cflags='-O5 -xspace'
2090     filter_cflags=suncc_flags
2091     suncc_flags(){
2092         for flag; do
2093             case $flag in
2094                 -march=*|-mcpu=*)
2095                     case "${flag#*=}" in
2096                         native)                   echo -xtarget=native       ;;
2097                         v9|niagara)               echo -xarch=sparc          ;;
2098                         ultrasparc)               echo -xarch=sparcvis       ;;
2099                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2100                         i586|pentium)             echo -xchip=pentium        ;;
2101                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2102                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2103                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2104                         pentium4*)          echo -xtarget=pentium4           ;;
2105                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2106                         *-sse3)             echo -xarch=sse3                 ;;
2107                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2108                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2109                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2110                         k8|opteron|athlon64|athlon-fx)
2111                                                   echo -xarch=sse2a          ;;
2112                         athlon*)                  echo -xarch=pentium_proa   ;;
2113                     esac
2114                     ;;
2115                 -std=c99)             echo -xc99              ;;
2116                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2117                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2118                 -W*,*)                echo $flag              ;;
2119                 -f*-*|-W*)                                    ;;
2120                 *)                    echo $flag              ;;
2121             esac
2122         done
2123     }
2124 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2125     cc_type=pathscale
2126     cc_version=__PATHSCALE__
2127     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2128     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2129     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2130     speed_cflags='-O2'
2131     size_cflags='-Os'
2132     filter_cflags='filter_out -Wdisabled-optimization'
2133 elif $cc -v 2>&1 | grep -q Open64; then
2134     cc_type=open64
2135     cc_version=__OPEN64__
2136     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2137     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2138     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2139     speed_cflags='-O2'
2140     size_cflags='-Os'
2141     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2142 fi
2143
2144 test -n "$cc_type" && enable $cc_type ||
2145     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2146
2147 : ${as_default:=$cc}
2148 : ${dep_cc_default:=$cc}
2149 : ${ld_default:=$cc}
2150 set_default ar as dep_cc ld
2151
2152 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2153 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2154
2155 add_cflags $extra_cflags
2156 add_asflags $extra_cflags
2157
2158 if test -n "$sysroot"; then
2159     case "$cc_type" in
2160         gcc|llvm_gcc|clang)
2161             add_cppflags --sysroot="$sysroot"
2162             add_ldflags --sysroot="$sysroot"
2163         ;;
2164         tms470)
2165             add_cppflags -I"$sysinclude"
2166             add_ldflags  --sysroot="$sysroot"
2167         ;;
2168     esac
2169 fi
2170
2171 if test "$cpu" = host; then
2172     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2173
2174     case "$cc_type" in
2175         gcc|llvm_gcc)
2176             check_native(){
2177                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2178                 sed -n "/cc1.*$1=/{
2179                             s/.*$1=\\([^ ]*\\).*/\\1/
2180                             p
2181                             q
2182                         }" $TMPE
2183             }
2184             cpu=$(check_native -march || check_native -mcpu)
2185         ;;
2186     esac
2187
2188     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2189 fi
2190
2191 # Deal with common $arch aliases
2192 case "$arch" in
2193     arm*)
2194         arch="arm"
2195     ;;
2196     mips|mipsel|IP*)
2197         arch="mips"
2198     ;;
2199     mips64*)
2200         arch="mips"
2201         subarch="mips64"
2202     ;;
2203     parisc|hppa)
2204         arch="parisc"
2205     ;;
2206     parisc64|hppa64)
2207         arch="parisc"
2208         subarch="parisc64"
2209     ;;
2210     "Power Macintosh"|ppc|powerpc)
2211         arch="ppc"
2212     ;;
2213     ppc64|powerpc64)
2214         arch="ppc"
2215         subarch="ppc64"
2216     ;;
2217     s390|s390x)
2218         arch="s390"
2219     ;;
2220     sh4|sh)
2221         arch="sh4"
2222     ;;
2223     sun4u|sparc64)
2224         arch="sparc"
2225         subarch="sparc64"
2226     ;;
2227     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2228         arch="x86"
2229     ;;
2230 esac
2231
2232 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2233 enable $arch
2234
2235 # Add processor-specific flags
2236 if test "$cpu" = generic; then
2237     : do nothing
2238 elif enabled ppc; then
2239
2240     case $(tolower $cpu) in
2241         601|ppc601|powerpc601)
2242             cpuflags="-mcpu=601"
2243             disable altivec
2244         ;;
2245         603*|ppc603*|powerpc603*)
2246             cpuflags="-mcpu=603"
2247             disable altivec
2248         ;;
2249         604*|ppc604*|powerpc604*)
2250             cpuflags="-mcpu=604"
2251             disable altivec
2252         ;;
2253         g3|75*|ppc75*|powerpc75*)
2254             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2255             disable altivec
2256         ;;
2257         g4|745*|ppc745*|powerpc745*)
2258             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2259         ;;
2260         74*|ppc74*|powerpc74*)
2261             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2262         ;;
2263         g5|970|ppc970|powerpc970|power4*)
2264             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2265         ;;
2266         cell)
2267             cpuflags="-mcpu=cell"
2268             enable ldbrx
2269         ;;
2270         e500v2)
2271             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2272             disable altivec
2273         ;;
2274         e500)
2275             cpuflags="-mcpu=8540 -mhard-float"
2276             disable altivec
2277         ;;
2278     esac
2279
2280 elif enabled x86; then
2281
2282     case $cpu in
2283         i[345]86|pentium)
2284             cpuflags="-march=$cpu"
2285             disable mmx
2286         ;;
2287         # targets that do NOT support conditional mov (cmov)
2288         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2289             cpuflags="-march=$cpu"
2290             disable cmov
2291         ;;
2292         # targets that do support conditional mov (cmov)
2293         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2294             cpuflags="-march=$cpu"
2295             enable cmov
2296             enable fast_cmov
2297         ;;
2298         # targets that do support conditional mov but on which it's slow
2299         pentium4|pentium4m|prescott|nocona)
2300             cpuflags="-march=$cpu"
2301             enable cmov
2302             disable fast_cmov
2303         ;;
2304     esac
2305
2306 elif enabled sparc; then
2307
2308     case $cpu in
2309         niagara)
2310             cpuflags="-mcpu=$cpu"
2311             disable vis
2312         ;;
2313         sparc64)
2314             cpuflags="-mcpu=v9"
2315         ;;
2316     esac
2317
2318 elif enabled arm; then
2319
2320     case $cpu in
2321         armv*)
2322             cpuflags="-march=$cpu"
2323             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2324         ;;
2325         *)
2326             cpuflags="-mcpu=$cpu"
2327             case $cpu in
2328                 cortex-a*)                               subarch=armv7a  ;;
2329                 cortex-r*)                               subarch=armv7r  ;;
2330                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2331                 arm11*)                                  subarch=armv6   ;;
2332                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2333                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2334             esac
2335         ;;
2336     esac
2337
2338 elif enabled alpha; then
2339
2340     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2341
2342 elif enabled bfin; then
2343
2344     cpuflags="-mcpu=$cpu"
2345
2346 elif enabled mips; then
2347
2348     cpuflags="-march=$cpu"
2349
2350 elif enabled avr32; then
2351
2352     case $cpu in
2353         ap7[02]0[0-2])
2354             subarch="avr32_ap"
2355             cpuflags="-mpart=$cpu"
2356         ;;
2357         ap)
2358             subarch="avr32_ap"
2359             cpuflags="-march=$cpu"
2360         ;;
2361         uc3[ab]*)
2362             subarch="avr32_uc"
2363             cpuflags="-mcpu=$cpu"
2364         ;;
2365         uc)
2366             subarch="avr32_uc"
2367             cpuflags="-march=$cpu"
2368         ;;
2369     esac
2370
2371 fi
2372
2373 add_cflags $cpuflags
2374 add_asflags $cpuflags
2375
2376 # compiler sanity check
2377 check_exec <<EOF
2378 int main(void){ return 0; }
2379 EOF
2380 if test "$?" != 0; then
2381     echo "$cc is unable to create an executable file."
2382     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2383         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2384         echo "Only do this if you know what cross compiling means."
2385     fi
2386     die "C compiler test failed."
2387 fi
2388
2389 add_cppflags -D_ISOC99_SOURCE
2390 check_cflags -std=c99
2391 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2392 #include <stdlib.h>
2393 EOF
2394 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2395 #include <stdlib.h>
2396 EOF
2397
2398 check_host_cflags -std=c99
2399 check_host_cflags -Wall
2400
2401 case "$arch" in
2402     alpha|ia64|mips|parisc|sparc)
2403         spic=$shared
2404     ;;
2405     x86)
2406         subarch="x86_32"
2407         check_cc <<EOF && subarch="x86_64"
2408         int test[(int)sizeof(char*) - 7];
2409 EOF
2410         if test "$subarch" = "x86_64"; then
2411             spic=$shared
2412         fi
2413     ;;
2414 esac
2415
2416 enable $subarch
2417 enabled spic && enable pic
2418
2419 # OS specific
2420 case $target_os in
2421     haiku)
2422         prefix_default="/boot/common"
2423         network_extralibs="-lnetwork"
2424         host_libs=
2425         ;;
2426     sunos)
2427         AVSERVERLDFLAGS=""
2428         SHFLAGS='-shared -Wl,-h,$$(@F)'
2429         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2430         network_extralibs="-lsocket -lnsl"
2431         add_cppflags -D__EXTENSIONS__
2432         # When using suncc to build, the Solaris linker will mark
2433         # an executable with each instruction set encountered by
2434         # the Solaris assembler.  As our libraries contain their own
2435         # guards for processor-specific code, instead suppress
2436         # generation of the HWCAPS ELF section on Solaris x86 only.
2437         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2438         nm_opts='-P -g'
2439         ;;
2440     netbsd)
2441         disable symver
2442         oss_indev_extralibs="-lossaudio"
2443         oss_outdev_extralibs="-lossaudio"
2444         ;;
2445     openbsd)
2446         enable malloc_aligned
2447         # On OpenBSD 4.5. the compiler does not use PIC unless
2448         # explicitly using -fPIC. Libav builds fine without PIC,
2449         # however the generated executable will not do anything
2450         # (simply quits with exit-code 1, no crash, no output).
2451         # Thus explicitly enable PIC here.
2452         enable pic
2453         disable symver
2454         SHFLAGS='-shared'
2455         oss_indev_extralibs="-lossaudio"
2456         oss_outdev_extralibs="-lossaudio"
2457         ;;
2458     dragonfly)
2459         enable malloc_aligned
2460         disable symver
2461         ;;
2462     freebsd)
2463         enable malloc_aligned
2464         ;;
2465     bsd/os)
2466         add_extralibs -lpoll -lgnugetopt
2467         ;;
2468     darwin)
2469         enable malloc_aligned
2470         gas="gas-preprocessor.pl $cc"
2471         enabled ppc && add_asflags -force_cpusubtype_ALL
2472         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2473         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2474         add_ldflags -Wl,-dynamic,-search_paths_first
2475         SLIBSUF=".dylib"
2476         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2477         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2478         AVSERVERLDFLAGS=-Wl,-bind_at_load
2479         objformat="macho"
2480         enabled x86_64 && objformat="macho64"
2481         enabled_any pic shared ||
2482             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2483         ;;
2484     mingw32*)
2485         if test $target_os = "mingw32ce"; then
2486             disable network
2487         else
2488             target_os=mingw32
2489         fi
2490         LIBTARGET=i386
2491         if enabled x86_64; then
2492             enable malloc_aligned
2493             LIBTARGET="i386:x86-64"
2494         elif enabled arm; then
2495             LIBTARGET=arm-wince
2496         fi
2497         shlibdir_default="$bindir_default"
2498         SLIBPREF=""
2499         SLIBSUF=".dll"
2500         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2501         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2502         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2503         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2504         SLIB_INSTALL_LINKS=
2505         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2506         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2507         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'
2508         objformat="win32"
2509         dlltool="${cross_prefix}dlltool"
2510         enable dos_paths
2511         check_cflags -fno-common
2512         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2513                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2514                 die "ERROR: MinGW runtime version must be >= 3.15."
2515         add_cppflags -U__STRICT_ANSI__
2516         ;;
2517     cygwin*)
2518         target_os=cygwin
2519         shlibdir_default="$bindir_default"
2520         SLIBPREF="cyg"
2521         SLIBSUF=".dll"
2522         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2523         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2524         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2525         objformat="win32"
2526         enable dos_paths
2527         check_cflags -fno-common
2528         add_cppflags -U__STRICT_ANSI__
2529         ;;
2530     *-dos|freedos|opendos)
2531         network_extralibs="-lsocket"
2532         objformat="coff"
2533         enable dos_paths
2534         add_cppflags -U__STRICT_ANSI__
2535         ;;
2536     linux)
2537         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2538         enable dv1394
2539         ;;
2540     irix*)
2541         target_os=irix
2542         ranlib="echo ignoring ranlib"
2543         ;;
2544     os/2*)
2545         ln_s="cp -f"
2546         objformat="aout"
2547         add_cppflags -D_GNU_SOURCE
2548         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2549         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2550         AVSERVERLDFLAGS=""
2551         LIBSUF="_s.a"
2552         SLIBPREF=""
2553         SLIBSUF=".dll"
2554         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2555         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2556         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2557           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2558           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2559           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2560           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2561           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2562         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2563           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2564         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2565         enable dos_paths
2566         ;;
2567     gnu/kfreebsd)
2568         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2569         ;;
2570     gnu)
2571         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2572         ;;
2573     qnx)
2574         add_cppflags -D_QNX_SOURCE
2575         network_extralibs="-lsocket"
2576         ;;
2577     symbian)
2578         SLIBSUF=".dll"
2579         enable dos_paths
2580         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2581         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2582         add_ldflags -Wl,--target1-abs,--no-undefined \
2583                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2584                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2585         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2586                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2587                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2588         ;;
2589     none)
2590         ;;
2591     *)
2592         die "Unknown OS '$target_os'."
2593         ;;
2594 esac
2595
2596 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2597
2598 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2599
2600 set_default $PATHS_LIST
2601
2602 # we need to build at least one lib type
2603 if ! enabled_any static shared; then
2604     cat <<EOF
2605 At least one library type must be built.
2606 Specify --enable-static to build the static libraries or --enable-shared to
2607 build the shared libraries as well. To only build the shared libraries specify
2608 --disable-static in addition to --enable-shared.
2609 EOF
2610     exit 1;
2611 fi
2612
2613 die_license_disabled() {
2614     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2615 }
2616
2617 die_license_disabled gpl libcdio
2618 die_license_disabled gpl libx264
2619 die_license_disabled gpl libxavs
2620 die_license_disabled gpl libxvid
2621 die_license_disabled gpl x11grab
2622
2623 die_license_disabled nonfree libfaac
2624 die_license_disabled nonfree openssl
2625
2626 die_license_disabled version3 libopencore_amrnb
2627 die_license_disabled version3 libopencore_amrwb
2628 die_license_disabled version3 libvo_aacenc
2629 die_license_disabled version3 libvo_amrwbenc
2630
2631 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2632
2633 disabled optimizations || check_cflags -fomit-frame-pointer
2634
2635 enable_pic() {
2636     enable pic
2637     add_cppflags -DPIC
2638     add_cflags   -fPIC
2639     add_asflags  -fPIC
2640 }
2641
2642 enabled pic && enable_pic
2643
2644 check_cc <<EOF || die "Symbol mangling check failed."
2645 int ff_extern;
2646 EOF
2647 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2648 extern_prefix=${sym%%ff_extern*}
2649
2650 check_cc <<EOF && enable inline_asm
2651 void foo(void) { __asm__ volatile ("" ::); }
2652 EOF
2653
2654 _restrict=
2655 for restrict_keyword in restrict __restrict__ __restrict; do
2656     check_cc <<EOF && _restrict=$restrict_keyword && break
2657 void foo(char * $restrict_keyword p);
2658 EOF
2659 done
2660
2661 check_cc <<EOF && enable attribute_packed
2662 struct { int x; } __attribute__((packed)) x;
2663 EOF
2664
2665 check_cc <<EOF && enable attribute_may_alias
2666 union { int x; } __attribute__((may_alias)) x;
2667 EOF
2668
2669 check_cc <<EOF || die "endian test failed"
2670 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2671 EOF
2672 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2673
2674 if enabled alpha; then
2675
2676     check_cflags -mieee
2677
2678 elif enabled arm; then
2679
2680     enabled thumb && check_cflags -mthumb || check_cflags -marm
2681     nogas=die
2682
2683     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2684         enable vfp_args
2685     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2686         case "${cross_prefix:-$cc}" in
2687             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2688             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2689 __asm__ (".eabi_attribute 28, 1");
2690 int main(void) { return 0; }
2691 EOF
2692         esac
2693         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2694     fi
2695
2696     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2697     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2698     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2699     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2700     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2701     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2702
2703     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2704
2705     enabled_all armv6t2 shared !pic && enable_pic
2706
2707 elif enabled mips; then
2708
2709     check_asm loongson '"dmult.g $1, $2, $3"'
2710     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2711
2712 elif enabled ppc; then
2713
2714     enable local_aligned_8 local_aligned_16
2715
2716     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2717     check_asm ibm_asm   '"add 0, 0, 0"'
2718     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2719     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2720
2721     # AltiVec flags: The FSF version of GCC differs from the Apple version
2722     if enabled altivec; then
2723         nogas=warn
2724         check_cflags -maltivec -mabi=altivec &&
2725         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2726         check_cflags -faltivec
2727
2728         # check if our compiler supports Motorola AltiVec C API
2729         check_cc <<EOF || disable altivec
2730 $inc_altivec_h
2731 int main(void) {
2732     vector signed int v1, v2, v3;
2733     v1 = vec_add(v2,v3);
2734     return 0;
2735 }
2736 EOF
2737
2738         # check if our compiler supports braces for vector declarations
2739         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2740 $inc_altivec_h
2741 int main (void) { (vector int) {1}; return 0; }
2742 EOF
2743     fi
2744
2745 elif enabled sparc; then
2746
2747     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2748         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2749
2750 elif enabled x86; then
2751
2752     enable local_aligned_8 local_aligned_16
2753
2754     # check whether EBP is available on x86
2755     # As 'i' is stored on the stack, this program will crash
2756     # if the base pointer is used to access it because the
2757     # base pointer is cleared in the inline assembly code.
2758     check_exec_crash <<EOF && enable ebp_available
2759     volatile int i=0;
2760     __asm__ volatile (
2761         "xorl %%ebp, %%ebp"
2762     ::: "%ebp");
2763     return i;
2764 EOF
2765
2766     # check whether EBX is available on x86
2767     check_asm ebx_available '""::"b"(0)' &&
2768         check_asm ebx_available '"":::"%ebx"'
2769
2770     # check whether xmm clobbers are supported
2771     check_asm xmm_clobbers '"":::"%xmm0"'
2772
2773     # check whether binutils is new enough to compile SSSE3/MMX2
2774     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2775     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2776
2777     if ! disabled_any asm mmx yasm; then
2778         if check_cmd $yasmexe --version; then
2779             enabled x86_64 && yasm_extra="-m amd64"
2780             yasm_debug="-g dwarf2"
2781         elif check_cmd nasm -v; then
2782             yasmexe=nasm
2783             yasm_debug="-g -F dwarf"
2784             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2785         fi
2786
2787         YASMFLAGS="-f $objformat $yasm_extra"
2788         enabled pic               && append YASMFLAGS "-DPIC"
2789         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2790         case "$objformat" in
2791             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2792         esac
2793
2794         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2795             die "yasm not found, use --disable-yasm for a crippled build"
2796         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2797     fi
2798
2799     case "$cpu" in
2800         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2801             disable fast_clz
2802         ;;
2803     esac
2804
2805 fi
2806
2807 if enabled asm; then
2808     as=${gas:=$as}
2809     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2810         $nogas "GNU assembler not found, install gas-preprocessor"
2811 fi
2812
2813 check_ldflags -Wl,--as-needed
2814
2815 if check_func dlopen; then
2816     ldl=
2817 elif check_func dlopen -ldl; then
2818     ldl=-ldl
2819 fi
2820
2821 if enabled network; then
2822     check_type "sys/types.h sys/socket.h" socklen_t
2823     check_type netdb.h "struct addrinfo"
2824     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2825     check_type netinet/in.h "struct sockaddr_in6"
2826     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2827     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2828     # Prefer arpa/inet.h over winsock2
2829     if check_header arpa/inet.h ; then
2830         check_func closesocket
2831     elif check_header winsock2.h ; then
2832         check_func_headers winsock2.h closesocket -lws2 && \
2833             network_extralibs="-lws2" || \
2834         { check_func_headers winsock2.h closesocket -lws2_32 && \
2835             network_extralibs="-lws2_32"; }
2836         check_type ws2tcpip.h socklen_t
2837         check_type ws2tcpip.h "struct addrinfo"
2838         check_type ws2tcpip.h "struct ipv6_mreq"
2839         check_type ws2tcpip.h "struct sockaddr_in6"
2840         check_type ws2tcpip.h "struct sockaddr_storage"
2841         check_struct winsock2.h "struct sockaddr" sa_len
2842     else
2843         disable network
2844     fi
2845 fi
2846
2847 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2848 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2849
2850 check_func  fcntl
2851 check_func  fork
2852 check_func  getaddrinfo $network_extralibs
2853 check_func  gethrtime
2854 check_func  getrusage
2855 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2856 check_func  inet_aton $network_extralibs
2857 check_func  isatty
2858 check_func  localtime_r
2859 check_func  ${malloc_prefix}memalign            && enable memalign
2860 check_func  mkstemp
2861 check_func  mmap
2862 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2863 check_func  setrlimit
2864 check_func  strerror_r
2865 check_func  strptime
2866 check_func  strtok_r
2867 check_func  sched_getaffinity
2868 check_func  sysconf
2869 check_func  sysctl
2870 check_func_headers io.h setmode
2871 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2872 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2873 check_func_headers windows.h GetProcessAffinityMask
2874 check_func_headers windows.h GetProcessTimes
2875 check_func_headers windows.h MapViewOfFile
2876 check_func_headers windows.h VirtualAlloc
2877
2878 check_header dlfcn.h
2879 check_header dxva2api.h
2880 check_header malloc.h
2881 check_header poll.h
2882 check_header sys/mman.h
2883 check_header sys/param.h
2884 check_header sys/resource.h
2885 check_header sys/select.h
2886 check_header vdpau/vdpau.h
2887 check_header vdpau/vdpau_x11.h
2888 check_header X11/extensions/XvMClib.h
2889
2890 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2891 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2892
2893 if ! disabled w32threads && ! enabled pthreads; then
2894     check_func _beginthreadex && enable w32threads
2895 fi
2896
2897 # check for some common methods of building with pthread support
2898 # do this before the optional library checks as some of them require pthreads
2899 if ! disabled pthreads && ! enabled w32threads; then
2900     enable pthreads
2901     if check_func pthread_create; then
2902         :
2903     elif check_func pthread_create -pthread; then
2904         add_cflags -pthread
2905         add_extralibs -pthread
2906     elif check_func pthread_create -pthreads; then
2907         add_cflags -pthreads
2908         add_extralibs -pthreads
2909     elif check_func pthread_create -lpthreadGC2; then
2910         add_extralibs -lpthreadGC2
2911     elif ! check_lib pthread.h pthread_create -lpthread; then
2912         disable pthreads
2913     fi
2914 fi
2915
2916 for thread in $THREADS_LIST; do
2917     if enabled $thread; then
2918         test -n "$thread_type" &&
2919             die "ERROR: Only one thread type must be selected." ||
2920             thread_type="$thread"
2921     fi
2922 done
2923
2924 check_lib math.h sin -lm && LIBM="-lm"
2925 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2926
2927 check_mathfunc exp2
2928 check_mathfunc exp2f
2929 check_mathfunc llrint
2930 check_mathfunc llrintf
2931 check_mathfunc log2
2932 check_mathfunc log2f
2933 check_mathfunc lrint
2934 check_mathfunc lrintf
2935 check_mathfunc round
2936 check_mathfunc roundf
2937 check_mathfunc trunc
2938 check_mathfunc truncf
2939
2940 # these are off by default, so fail if requested and not available
2941 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2942 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2943 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2944 enabled libdirac   && require_pkg_config dirac                          \
2945     "libdirac_decoder/dirac_parser.h"  \
2946     "dirac_decoder_init"
2947 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2948 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2949 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2950 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2951 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2952 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2953 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2954 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2955 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2956 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2957 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2958 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2959 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2960 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2961 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2962 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2963 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2964 enabled libvpx     && {
2965     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2966                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2967     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2968                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2969 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2970                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2971                         die "ERROR: libx264 version must be >= 0.118."; }
2972 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2973 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2974 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2975                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2976                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2977                         die "ERROR: openssl not found"; }
2978
2979 # libdc1394 check
2980 if enabled libdc1394; then
2981     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2982         enable libdc1394_2; } ||
2983     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2984         enable libdc1394_1; } ||
2985     die "ERROR: No version of libdc1394 found "
2986 fi
2987
2988 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2989     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2990     enable sdl &&
2991     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2992 fi
2993
2994 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2995
2996 check_header linux/fb.h
2997 check_header linux/videodev2.h
2998 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
2999
3000 check_header sys/videoio.h
3001
3002 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3003 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3004 # w32api 3.12 had it defined wrong
3005 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3006
3007 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3008 { check_header dev/bktr/ioctl_meteor.h &&
3009   check_header dev/bktr/ioctl_bt848.h; } ||
3010 { check_header machine/ioctl_meteor.h &&
3011   check_header machine/ioctl_bt848.h; } ||
3012 { check_header dev/video/meteor/ioctl_meteor.h &&
3013   check_header dev/video/bktr/ioctl_bt848.h; } ||
3014 check_header dev/ic/bt8xx.h
3015
3016 check_header sndio.h
3017 check_header sys/soundcard.h
3018 check_header soundcard.h
3019
3020 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3021
3022 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
3023
3024 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3025
3026 enabled libcdio &&
3027     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3028
3029 enabled x11grab                         &&
3030 check_header X11/Xlib.h                 &&
3031 check_header X11/extensions/XShm.h      &&
3032 check_header X11/extensions/Xfixes.h    &&
3033 check_func XOpenDisplay -lX11           &&
3034 check_func XShmCreateImage -lX11 -lXext &&
3035 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3036
3037 # check for VDA header
3038 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3039     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3040 fi
3041
3042 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3043 check_cpp_condition \
3044     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3045     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3046       disable vdpau; }
3047 fi
3048
3049 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3050
3051 # add some useful compiler flags if supported
3052 check_cflags -Wdeclaration-after-statement
3053 check_cflags -Wall
3054 check_cflags -Wno-parentheses
3055 check_cflags -Wno-switch
3056 check_cflags -Wno-format-zero-length
3057 check_cflags -Wdisabled-optimization
3058 check_cflags -Wpointer-arith
3059 check_cflags -Wredundant-decls
3060 check_cflags -Wno-pointer-sign
3061 check_cflags -Wcast-qual
3062 check_cflags -Wwrite-strings
3063 check_cflags -Wtype-limits
3064 check_cflags -Wundef
3065 check_cflags -Wmissing-prototypes
3066 check_cflags -Wstrict-prototypes
3067 enabled extra_warnings && check_cflags -Winline
3068
3069 # add some linker flags
3070 check_ldflags -Wl,--warn-common
3071 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3072 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3073
3074 enabled xmm_clobber_test &&                             \
3075     check_ldflags -Wl,--wrap,avcodec_open2              \
3076                   -Wl,--wrap,avcodec_decode_audio4      \
3077                   -Wl,--wrap,avcodec_decode_video2      \
3078                   -Wl,--wrap,avcodec_decode_subtitle2   \
3079                   -Wl,--wrap,avcodec_encode_audio2      \
3080                   -Wl,--wrap,avcodec_encode_video       \
3081                   -Wl,--wrap,avcodec_encode_subtitle    \
3082                   -Wl,--wrap,sws_scale ||               \
3083     disable xmm_clobber_test
3084
3085 echo "X{};" > $TMPV
3086 if test_ldflags -Wl,--version-script,$TMPV; then
3087     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3088     check_cc <<EOF && enable symver_asm_label
3089 void ff_foo(void) __asm__ ("av_foo@VERSION");
3090 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3091 EOF
3092     check_cc <<EOF && enable symver_gnu_asm
3093 __asm__(".symver ff_foo,av_foo@VERSION");
3094 void ff_foo(void) {}
3095 EOF
3096 fi
3097
3098 if [ -n "$optflags" ]; then
3099     add_cflags $optflags
3100 elif enabled small; then
3101     add_cflags $size_cflags
3102 elif enabled optimizations; then
3103     add_cflags $speed_cflags
3104 else
3105     add_cflags $noopt_cflags
3106 fi
3107 check_cflags -fno-math-errno
3108 check_cflags -fno-signed-zeros
3109
3110 if enabled icc; then
3111     # Just warnings, no remarks
3112     check_cflags -w1
3113     # -wd: Disable following warnings
3114     # 144, 167, 556: -Wno-pointer-sign
3115     # 1292: attribute "foo" ignored
3116     # 10006: ignoring unknown option -fno-signed-zeros
3117     # 10148: ignoring unknown option -Wno-parentheses
3118     # 10156: ignoring option '-W'; no argument required
3119     check_cflags -wd144,167,556,1292,10006,10148,10156
3120     # 11030: Warning unknown option --as-needed
3121     # 10156: ignoring option '-export'; no argument required
3122     check_ldflags -wd10156,11030
3123     # Allow to compile with optimizations
3124     check_ldflags -march=$cpu
3125     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3126     enable ebp_available
3127     if enabled x86_32; then
3128         test ${icc_version%%.*} -ge 11 && \
3129             check_cflags -falign-stack=maintain-16-byte || \
3130             disable aligned_stack
3131     fi
3132 elif enabled ccc; then
3133     # disable some annoying warnings
3134     add_cflags -msg_disable cvtu32to64
3135     add_cflags -msg_disable embedcomment
3136     add_cflags -msg_disable needconstext
3137     add_cflags -msg_disable nomainieee
3138     add_cflags -msg_disable ptrmismatch1
3139     add_cflags -msg_disable unreachcode
3140 elif enabled gcc; then
3141     check_cflags -fno-tree-vectorize
3142     check_cflags -Werror=implicit-function-declaration
3143     check_cflags -Werror=missing-prototypes
3144     check_cflags -Werror=declaration-after-statement
3145 elif enabled llvm_gcc; then
3146     check_cflags -mllvm -stack-alignment=16
3147 elif enabled clang; then
3148     check_cflags -mllvm -stack-alignment=16
3149     check_cflags -Qunused-arguments
3150 elif enabled armcc; then
3151     # 2523: use of inline assembler is deprecated
3152     add_cflags -W${armcc_opt},--diag_suppress=2523
3153     add_cflags -W${armcc_opt},--diag_suppress=1207
3154     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3155     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3156     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3157     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3158 elif enabled tms470; then
3159     add_cflags -pds=824 -pds=837
3160 elif enabled pathscale; then
3161     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3162 fi
3163
3164 enabled_any $THREADS_LIST      && enable threads
3165
3166 check_deps $CONFIG_LIST       \
3167            $CONFIG_EXTRA      \
3168            $HAVE_LIST         \
3169            $ALL_COMPONENTS    \
3170            $ALL_TESTS         \
3171
3172 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3173
3174 ! enabled_any memalign posix_memalign malloc_aligned &&
3175     enabled_any $need_memalign && enable memalign_hack
3176
3177 echo "install prefix            $prefix"
3178 echo "source path               $source_path"
3179 echo "C compiler                $cc"
3180 echo "ARCH                      $arch ($cpu)"
3181 if test "$build_suffix" != ""; then
3182     echo "build suffix              $build_suffix"
3183 fi
3184 if test "$extra_version" != ""; then
3185     echo "version string suffix     $extra_version"
3186 fi
3187 echo "big-endian                ${bigendian-no}"
3188 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3189 if enabled x86; then
3190     echo "${yasmexe}                      ${yasm-no}"
3191     echo "MMX enabled               ${mmx-no}"
3192     echo "MMX2 enabled              ${mmx2-no}"
3193     echo "3DNow! enabled            ${amd3dnow-no}"
3194     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3195     echo "SSE enabled               ${sse-no}"
3196     echo "SSSE3 enabled             ${ssse3-no}"
3197     echo "AVX enabled               ${avx-no}"
3198     echo "CMOV enabled              ${cmov-no}"
3199     echo "CMOV is fast              ${fast_cmov-no}"
3200     echo "EBX available             ${ebx_available-no}"
3201     echo "EBP available             ${ebp_available-no}"
3202 fi
3203 if enabled arm; then
3204     echo "ARMv5TE enabled           ${armv5te-no}"
3205     echo "ARMv6 enabled             ${armv6-no}"
3206     echo "ARMv6T2 enabled           ${armv6t2-no}"
3207     echo "ARM VFP enabled           ${armvfp-no}"
3208     echo "NEON enabled              ${neon-no}"
3209 fi
3210 if enabled mips; then
3211     echo "MMI enabled               ${mmi-no}"
3212 fi
3213 if enabled ppc; then
3214     echo "AltiVec enabled           ${altivec-no}"
3215     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3216     echo "dcbzl available           ${dcbzl-no}"
3217 fi
3218 if enabled sparc; then
3219     echo "VIS enabled               ${vis-no}"
3220 fi
3221 echo "debug symbols             ${debug-no}"
3222 echo "optimize for size         ${small-no}"
3223 echo "optimizations             ${optimizations-no}"
3224 echo "static                    ${static-no}"
3225 echo "shared                    ${shared-no}"
3226 echo "new filter support        ${avfilter-no}"
3227 echo "network support           ${network-no}"
3228 echo "threading support         ${thread_type-no}"
3229 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3230 echo "SDL support               ${sdl-no}"
3231 echo "libdxva2 enabled          ${dxva2-no}"
3232 echo "libva enabled             ${vaapi-no}"
3233 echo "libvdpau enabled          ${vdpau-no}"
3234 echo "AVISynth enabled          ${avisynth-no}"
3235 echo "frei0r enabled            ${frei0r-no}"
3236 echo "gnutls enabled            ${gnutls-no}"
3237 echo "libcdio support           ${libcdio-no}"
3238 echo "libdc1394 support         ${libdc1394-no}"
3239 echo "libdirac enabled          ${libdirac-no}"
3240 echo "libfaac enabled           ${libfaac-no}"
3241 echo "libgsm enabled            ${libgsm-no}"
3242 echo "libmp3lame enabled        ${libmp3lame-no}"
3243 echo "libnut enabled            ${libnut-no}"
3244 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3245 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3246 echo "libopencv support         ${libopencv-no}"
3247 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3248 echo "libpulse enabled          ${libpulse-no}"
3249 echo "librtmp enabled           ${librtmp-no}"
3250 echo "libschroedinger enabled   ${libschroedinger-no}"
3251 echo "libspeex enabled          ${libspeex-no}"
3252 echo "libtheora enabled         ${libtheora-no}"
3253 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3254 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3255 echo "libvorbis enabled         ${libvorbis-no}"
3256 echo "libvpx enabled            ${libvpx-no}"
3257 echo "libx264 enabled           ${libx264-no}"
3258 echo "libxavs enabled           ${libxavs-no}"
3259 echo "libxvid enabled           ${libxvid-no}"
3260 echo "openssl enabled           ${openssl-no}"
3261 echo "zlib enabled              ${zlib-no}"
3262 echo "bzlib enabled             ${bzlib-no}"
3263 echo
3264
3265 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3266     echo "Enabled ${type}s:"
3267     eval list=\$$(toupper $type)_LIST
3268     print_enabled '_*' $list | sort | pr -r -3 -t
3269     echo
3270 done
3271
3272 license="LGPL version 2.1 or later"
3273 if enabled nonfree; then
3274     license="nonfree and unredistributable"
3275 elif enabled gplv3; then
3276     license="GPL version 3 or later"
3277 elif enabled lgplv3; then
3278     license="LGPL version 3 or later"
3279 elif enabled gpl; then
3280     license="GPL version 2 or later"
3281 fi
3282
3283 echo "License: $license"
3284
3285 echo "Creating config.mak and config.h..."
3286
3287 test -e Makefile || $ln_s "$source_path/Makefile" .
3288
3289 config_files="$TMPH config.mak"
3290
3291 cat > config.mak <<EOF
3292 # Automatically generated by configure - do not modify!
3293 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3294 prefix=$prefix
3295 LIBDIR=\$(DESTDIR)$libdir
3296 SHLIBDIR=\$(DESTDIR)$shlibdir
3297 INCDIR=\$(DESTDIR)$incdir
3298 BINDIR=\$(DESTDIR)$bindir
3299 DATADIR=\$(DESTDIR)$datadir
3300 MANDIR=\$(DESTDIR)$mandir
3301 SRC_PATH=$source_path
3302 CC_IDENT=$cc_ident
3303 ARCH=$arch
3304 CC=$cc
3305 AS=$as
3306 LD=$ld
3307 DEPCC=$dep_cc
3308 YASM=$yasmexe
3309 YASMDEP=$yasmexe
3310 AR=$ar
3311 RANLIB=$ranlib
3312 LN_S=$ln_s
3313 CPPFLAGS=$CPPFLAGS
3314 CFLAGS=$CFLAGS
3315 ASFLAGS=$ASFLAGS
3316 AS_O=$CC_O
3317 CC_O=$CC_O
3318 DLLTOOL=$dlltool
3319 LDFLAGS=$LDFLAGS
3320 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3321 SHFLAGS=$SHFLAGS
3322 YASMFLAGS=$YASMFLAGS
3323 BUILDSUF=$build_suffix
3324 FULLNAME=$FULLNAME
3325 LIBPREF=$LIBPREF
3326 LIBSUF=$LIBSUF
3327 LIBNAME=$LIBNAME
3328 SLIBPREF=$SLIBPREF
3329 SLIBSUF=$SLIBSUF
3330 EXESUF=$EXESUF
3331 EXTRA_VERSION=$extra_version
3332 DEPFLAGS=$DEPFLAGS
3333 CCDEP=$CCDEP
3334 ASDEP=$ASDEP
3335 CC_DEPFLAGS=$CC_DEPFLAGS
3336 AS_DEPFLAGS=$AS_DEPFLAGS
3337 HOSTCC=$host_cc
3338 HOSTCFLAGS=$host_cflags
3339 HOSTEXESUF=$HOSTEXESUF
3340 HOSTLDFLAGS=$host_ldflags
3341 HOSTLIBS=$host_libs
3342 TARGET_EXEC=$target_exec
3343 TARGET_PATH=$target_path
3344 SDL_LIBS=$sdl_libs
3345 SDL_CFLAGS=$sdl_cflags
3346 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3347 EXTRALIBS=$extralibs
3348 INSTALL=install
3349 LIBTARGET=${LIBTARGET}
3350 SLIBNAME=${SLIBNAME}
3351 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3352 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3353 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3354 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3355 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3356 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3357 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3358 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3359 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3360 EOF
3361
3362 get_version(){
3363     name=$1
3364     file=$source_path/$2
3365     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3366     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3367     lcname=$(tolower $name)
3368     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3369     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3370 }
3371
3372 get_version LIBAVCODEC  libavcodec/version.h
3373 get_version LIBAVDEVICE libavdevice/avdevice.h
3374 get_version LIBAVFILTER libavfilter/version.h
3375 get_version LIBAVFORMAT libavformat/version.h
3376 get_version LIBAVUTIL   libavutil/avutil.h
3377 get_version LIBSWSCALE  libswscale/swscale.h
3378
3379 cat > $TMPH <<EOF
3380 /* Automatically generated by configure - do not modify! */
3381 #ifndef LIBAV_CONFIG_H
3382 #define LIBAV_CONFIG_H
3383 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3384 #define LIBAV_LICENSE "$(c_escape $license)"
3385 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3386 #define CC_TYPE "$cc_type"
3387 #define CC_VERSION $cc_version
3388 #define restrict $_restrict
3389 #define EXTERN_PREFIX "${extern_prefix}"
3390 #define EXTERN_ASM ${extern_prefix}
3391 #define SLIBSUF "$SLIBSUF"
3392 EOF
3393
3394 test -n "$malloc_prefix" &&
3395     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3396
3397 if enabled small || disabled optimizations; then
3398     echo "#undef  av_always_inline"  >> $TMPH
3399     if enabled small; then
3400         echo "#define av_always_inline inline"  >> $TMPH
3401     else
3402         echo "#define av_always_inline av_unused"  >> $TMPH
3403     fi
3404 fi
3405
3406 if enabled yasm; then
3407     append config_files $TMPASM
3408     printf '' >$TMPASM
3409 fi
3410
3411 print_config ARCH_   "$config_files" $ARCH_LIST
3412 print_config HAVE_   "$config_files" $HAVE_LIST
3413 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3414                                      $CONFIG_EXTRA      \
3415                                      $ALL_COMPONENTS    \
3416
3417 cat >>config.mak <<EOF
3418 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3419 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3420 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3421 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3422 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3423 EOF
3424
3425 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3426
3427 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3428 cp_if_changed $TMPH config.h
3429 touch .config
3430
3431 enabled yasm && cp_if_changed $TMPASM config.asm
3432
3433 cat > $TMPH <<EOF
3434 /* Generated by ffconf */
3435 #ifndef AVUTIL_AVCONFIG_H
3436 #define AVUTIL_AVCONFIG_H
3437 EOF
3438
3439 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3440
3441 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3442
3443 cp_if_changed $TMPH libavutil/avconfig.h
3444
3445 test -n "$WARNINGS" && printf "\n$WARNINGS"
3446
3447 # build pkg-config files
3448
3449 pkgconfig_generate(){
3450 name=$1
3451 shortname=${name#lib}${build_suffix}
3452 comment=$2
3453 version=$3
3454 libs=$4
3455 requires=$5
3456 enabled ${name#lib} || return 0
3457 mkdir -p $name
3458 cat <<EOF > $name/$name.pc
3459 prefix=$prefix
3460 exec_prefix=\${prefix}
3461 libdir=$libdir
3462 includedir=$incdir
3463
3464 Name: $name
3465 Description: $comment
3466 Version: $version
3467 Requires: $(enabled shared || echo $requires)
3468 Requires.private: $(enabled shared && echo $requires)
3469 Conflicts:
3470 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3471 Libs.private: $(enabled shared && echo $libs)
3472 Cflags: -I\${includedir}
3473 EOF
3474 cat <<EOF > $name/$name-uninstalled.pc
3475 prefix=
3476 exec_prefix=
3477 libdir=\${pcfiledir}
3478 includedir=${source_path}
3479
3480 Name: $name
3481 Description: $comment
3482 Version: $version
3483 Requires: $requires
3484 Conflicts:
3485 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3486 Cflags: -I\${includedir}
3487 EOF
3488 }
3489
3490 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3491 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3492 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3493 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3494 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3495 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"