configure: add libpulse to help output
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-avconv         disable avconv build
85   --disable-avplay         disable avplay build
86   --disable-avprobe        disable avprobe build
87   --disable-avserver       disable avserver build
88   --disable-avdevice       disable libavdevice build
89   --disable-avcodec        disable libavcodec build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --disable-postproc       disable libpostproc build
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --disable-w32threads     disable Win32 threads [auto]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --enable-gray            enable full grayscale support (slower color)
99   --disable-swscale-alpha  disable alpha channel support in swscale
100   --disable-fastdiv        disable table-based division
101   --enable-small           optimize for size instead of speed
102   --disable-aandct         disable AAN DCT code
103   --disable-dct            disable DCT code
104   --disable-fft            disable FFT code
105   --disable-golomb         disable Golomb code
106   --disable-huffman        disable Huffman code
107   --disable-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --enable-vaapi           enable VAAPI code
111   --enable-vda             enable VDA code
112   --enable-vdpau           enable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
117   --disable-everything     disable all components listed below
118   --disable-encoder=NAME   disable encoder NAME
119   --enable-encoder=NAME    enable encoder NAME
120   --disable-encoders       disable all encoders
121   --disable-decoder=NAME   disable decoder NAME
122   --enable-decoder=NAME    enable decoder NAME
123   --disable-decoders       disable all decoders
124   --disable-hwaccel=NAME   disable hwaccel NAME
125   --enable-hwaccel=NAME    enable hwaccel NAME
126   --disable-hwaccels       disable all hwaccels
127   --disable-muxer=NAME     disable muxer NAME
128   --enable-muxer=NAME      enable muxer NAME
129   --disable-muxers         disable all muxers
130   --disable-demuxer=NAME   disable demuxer NAME
131   --enable-demuxer=NAME    enable demuxer NAME
132   --disable-demuxers       disable all demuxers
133   --enable-parser=NAME     enable parser NAME
134   --disable-parser=NAME    disable parser NAME
135   --disable-parsers        disable all parsers
136   --enable-bsf=NAME        enable bitstream filter NAME
137   --disable-bsf=NAME       disable bitstream filter NAME
138   --disable-bsfs           disable all bitstream filters
139   --enable-protocol=NAME   enable protocol NAME
140   --disable-protocol=NAME  disable protocol NAME
141   --disable-protocols      disable all protocols
142   --disable-indev=NAME     disable input device NAME
143   --disable-outdev=NAME    disable output device NAME
144   --disable-indevs         disable input devices
145   --disable-outdevs        disable output devices
146   --disable-devices        disable all devices
147   --enable-filter=NAME     enable filter NAME
148   --disable-filter=NAME    disable filter NAME
149   --disable-filters        disable all filters
150   --list-decoders          show all available decoders
151   --list-encoders          show all available encoders
152   --list-hwaccels          show all available hardware accelerators
153   --list-muxers            show all available muxers
154   --list-demuxers          show all available demuxers
155   --list-parsers           show all available parsers
156   --list-protocols         show all available protocols
157   --list-bsfs              show all available bitstream filters
158   --list-indevs            show all available input devices
159   --list-outdevs           show all available output devices
160   --list-filters           show all available filters
161
162 External library support:
163   --enable-avisynth        enable reading of AVISynth script files [no]
164   --enable-bzlib           enable bzlib [autodetect]
165   --enable-frei0r          enable frei0r video filtering
166   --enable-gnutls          enable gnutls [no]
167   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
168   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
169   --enable-libopencv       enable video filtering via libopencv [no]
170   --enable-libcdio         enable audio CD grabbing with libcdio
171   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
172                            and libraw1394 [no]
173   --enable-libdirac        enable Dirac support via libdirac [no]
174   --enable-libfaac         enable FAAC support via libfaac [no]
175   --enable-libfreetype     enable libfreetype [no]
176   --enable-libgsm          enable GSM support via libgsm [no]
177   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
178   --enable-libnut          enable NUT (de)muxing via libnut,
179                            native (de)muxer exists [no]
180   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
181   --enable-libpulse        enable Pulseaudio input via libpulse [no]
182   --enable-librtmp         enable RTMP[E] support via librtmp [no]
183   --enable-libschroedinger enable Dirac support via libschroedinger [no]
184   --enable-libspeex        enable Speex support via libspeex [no]
185   --enable-libtheora       enable Theora encoding via libtheora [no]
186   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
187   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
188   --enable-libvorbis       enable Vorbis encoding via libvorbis,
189                            native implementation exists [no]
190   --enable-libvpx          enable VP8 support via libvpx [no]
191   --enable-libx264         enable H.264 encoding via x264 [no]
192   --enable-libxavs         enable AVS encoding via xavs [no]
193   --enable-libxvid         enable Xvid encoding via xvidcore,
194                            native MPEG-4/Xvid encoder exists [no]
195   --enable-mlib            enable Sun medialib [no]
196   --enable-openssl         enable openssl [no]
197   --enable-zlib            enable zlib [autodetect]
198
199 Advanced options (experts only):
200   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
201   --enable-cross-compile   assume a cross-compiler is used
202   --sysroot=PATH           root of cross-build tree
203   --sysinclude=PATH        location of cross-build system headers
204   --target-os=OS           compiler targets OS [$target_os]
205   --target-exec=CMD        command to run executables on target
206   --target-path=DIR        path to view of build directory on target
207   --nm=NM                  use nm tool
208   --ar=AR                  use archive tool AR [$ar_default]
209   --as=AS                  use assembler AS [$as_default]
210   --cc=CC                  use C compiler CC [$cc_default]
211   --ld=LD                  use linker LD
212   --host-cc=HOSTCC         use host C compiler HOSTCC
213   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
214   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
215   --host-libs=HLIBS        use libs HLIBS when linking for host
216   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
217   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
218   --extra-libs=ELIBS       add ELIBS [$ELIBS]
219   --extra-version=STRING   version string suffix []
220   --build-suffix=SUFFIX    library name suffix []
221   --arch=ARCH              select architecture [$arch]
222   --cpu=CPU                select the minimum required CPU (affects
223                            instruction selection, may crash on older CPUs)
224   --disable-asm            disable all assembler optimizations
225   --disable-altivec        disable AltiVec optimizations
226   --disable-amd3dnow       disable 3DNow! optimizations
227   --disable-amd3dnowext    disable 3DNow! extended optimizations
228   --disable-mmx            disable MMX optimizations
229   --disable-mmx2           disable MMX2 optimizations
230   --disable-sse            disable SSE optimizations
231   --disable-ssse3          disable SSSE3 optimizations
232   --disable-avx            disable AVX optimizations
233   --disable-armv5te        disable armv5te optimizations
234   --disable-armv6          disable armv6 optimizations
235   --disable-armv6t2        disable armv6t2 optimizations
236   --disable-armvfp         disable ARM VFP optimizations
237   --disable-iwmmxt         disable iwmmxt optimizations
238   --disable-mmi            disable MMI optimizations
239   --disable-neon           disable neon optimizations
240   --disable-vis            disable VIS optimizations
241   --disable-yasm           disable use of yasm assembler
242   --enable-pic             build position-independent code
243   --malloc-prefix=PFX      prefix malloc and related names with PFX
244   --enable-sram            allow use of on-chip SRAM
245   --disable-symver         disable symbol versioning
246   --optflags               override optimization-related compiler flags
247
248 Developer options (useful when working on Libav itself):
249   --disable-debug          disable debugging symbols
250   --enable-debug=LEVEL     set the debug level [$debuglevel]
251   --disable-optimizations  disable compiler optimizations
252   --enable-extra-warnings  enable more compiler warnings
253   --samples=PATH           location of test samples for FATE, if not set use
254                            \$FATE_SAMPLES at make invocation time.
255
256 NOTE: Object files are built at the place where configure is launched.
257 EOF
258   exit 0
259 }
260
261 quotes='""'
262
263 log(){
264     echo "$@" >> $logfile
265 }
266
267 log_file(){
268     log BEGIN $1
269     pr -n -t $1 >> $logfile
270     log END $1
271 }
272
273 echolog(){
274     log "$@"
275     echo "$@"
276 }
277
278 warn(){
279     log "WARNING: $*"
280     WARNINGS="${WARNINGS}WARNING: $*\n"
281 }
282
283 die(){
284     echolog "$@"
285     cat <<EOF
286
287 If you think configure made a mistake, make sure you are using the latest
288 version from Git.  If the latest version fails, report the problem to the
289 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
290 EOF
291     if disabled logging; then
292         cat <<EOF
293 Rerun configure with logging enabled (do not use --disable-logging), and
294 include the log this produces with your report.
295 EOF
296     else
297 cat <<EOF
298 Include the log file "$logfile" produced by configure as this will help
299 solving the problem.
300 EOF
301     fi
302     exit 1
303 }
304
305 # Avoid locale weirdness, besides we really just want to translate ASCII.
306 toupper(){
307     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
308 }
309
310 tolower(){
311     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
312 }
313
314 c_escape(){
315     echo "$*" | sed 's/["\\]/\\\0/g'
316 }
317
318 sh_quote(){
319     v=$(echo "$1" | sed "s/'/'\\\\''/g")
320     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
321     echo "$v"
322 }
323
324 cleanws(){
325     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
326 }
327
328 filter(){
329     pat=$1
330     shift
331     for v; do
332         eval "case $v in $pat) echo $v ;; esac"
333     done
334 }
335
336 filter_out(){
337     pat=$1
338     shift
339     for v; do
340         eval "case $v in $pat) ;; *) echo $v ;; esac"
341     done
342 }
343
344 map(){
345     m=$1
346     shift
347     for v; do eval $m; done
348 }
349
350 set_all(){
351     value=$1
352     shift
353     for var in $*; do
354         eval $var=$value
355     done
356 }
357
358 set_weak(){
359     value=$1
360     shift
361     for var; do
362         eval : \${$var:=$value}
363     done
364 }
365
366 set_safe(){
367     var=$1
368     shift
369     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
370 }
371
372 get_safe(){
373     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
374 }
375
376 pushvar(){
377     for var in $*; do
378         eval level=\${${var}_level:=0}
379         eval ${var}_${level}="\$$var"
380         eval ${var}_level=$(($level+1))
381     done
382 }
383
384 popvar(){
385     for var in $*; do
386         eval level=\${${var}_level:-0}
387         test $level = 0 && continue
388         eval level=$(($level-1))
389         eval $var="\${${var}_${level}}"
390         eval ${var}_level=$level
391         eval unset ${var}_${level}
392     done
393 }
394
395 enable(){
396     set_all yes $*
397 }
398
399 disable(){
400     set_all no $*
401 }
402
403 enable_weak(){
404     set_weak yes $*
405 }
406
407 disable_weak(){
408     set_weak no $*
409 }
410
411 enable_safe(){
412     for var; do
413         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
414     done
415 }
416
417 disable_safe(){
418     for var; do
419         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
420     done
421 }
422
423 do_enable_deep(){
424     for var; do
425         enabled $var && continue
426         eval sel="\$${var}_select"
427         eval sgs="\$${var}_suggest"
428         pushvar var sgs
429         enable_deep $sel
430         popvar sgs
431         enable_deep_weak $sgs
432         popvar var
433     done
434 }
435
436 enable_deep(){
437     do_enable_deep $*
438     enable $*
439 }
440
441 enable_deep_weak(){
442     do_enable_deep $*
443     enable_weak $*
444 }
445
446 enabled(){
447     test "${1#!}" = "$1" && op== || op=!=
448     eval test "x\$${1#!}" $op "xyes"
449 }
450
451 disabled(){
452     test "${1#!}" = "$1" && op== || op=!=
453     eval test "x\$${1#!}" $op "xno"
454 }
455
456 enabled_all(){
457     for opt; do
458         enabled $opt || return 1
459     done
460 }
461
462 disabled_all(){
463     for opt; do
464         disabled $opt || return 1
465     done
466 }
467
468 enabled_any(){
469     for opt; do
470         enabled $opt && return 0
471     done
472 }
473
474 disabled_any(){
475     for opt; do
476         disabled $opt && return 0
477     done
478     return 1
479 }
480
481 set_default(){
482     for opt; do
483         eval : \${$opt:=\$${opt}_default}
484     done
485 }
486
487 is_in(){
488     value=$1
489     shift
490     for var in $*; do
491         [ $var = $value ] && return 0
492     done
493     return 1
494 }
495
496 check_deps(){
497     for cfg; do
498         cfg="${cfg#!}"
499         enabled ${cfg}_checking && die "Circular dependency for $cfg."
500         disabled ${cfg}_checking && continue
501         enable ${cfg}_checking
502
503         eval dep_all="\$${cfg}_deps"
504         eval dep_any="\$${cfg}_deps_any"
505         eval dep_sel="\$${cfg}_select"
506         eval dep_sgs="\$${cfg}_suggest"
507         eval dep_ifa="\$${cfg}_if"
508         eval dep_ifn="\$${cfg}_if_any"
509
510         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
511         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
512         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
513
514         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
515         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
516         enabled_all  $dep_all || disable $cfg
517         enabled_any  $dep_any || disable $cfg
518         disabled_any $dep_sel && disable $cfg
519
520         if enabled $cfg; then
521             eval dep_extralibs="\$${cfg}_extralibs"
522             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
523             enable_deep $dep_sel
524             enable_deep_weak $dep_sgs
525         fi
526
527         disable ${cfg}_checking
528     done
529 }
530
531 print_config_h(){
532     enabled $1 && v=1 || v=0
533     echo "#define $2 $v"
534 }
535
536 print_config_mak(){
537     enabled $1 && v= || v=!
538     echo "$v$2=yes"
539 }
540
541 print_config_asm(){
542     enabled $1 && echo "%define $2"
543 }
544
545 print_config(){
546     pfx=$1
547     files=$2
548     shift 2
549     for cfg; do
550         ucname="$(toupper $cfg)"
551         for f in $files; do
552             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
553         done
554     done
555 }
556
557 print_enabled(){
558     test "$1" = -n && end=" " && shift || end="\n"
559     suf=$1
560     shift
561     for v; do
562         enabled $v && printf "%s$end" ${v%$suf};
563     done
564 }
565
566 append(){
567     var=$1
568     shift
569     eval "$var=\"\$$var $*\""
570 }
571
572 prepend(){
573     var=$1
574     shift
575     eval "$var=\"$* \$$var\""
576 }
577
578 add_cppflags(){
579     append CPPFLAGS $($filter_cppflags "$@")
580 }
581
582 add_cflags(){
583     append CFLAGS $($filter_cflags "$@")
584 }
585
586 add_asflags(){
587     append ASFLAGS $($filter_asflags "$@")
588 }
589
590 add_ldflags(){
591     append LDFLAGS "$@"
592 }
593
594 add_extralibs(){
595     prepend extralibs "$@"
596 }
597
598 check_cmd(){
599     log "$@"
600     "$@" >> $logfile 2>&1
601 }
602
603 check_cc(){
604     log check_cc "$@"
605     cat > $TMPC
606     log_file $TMPC
607     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
608 }
609
610 check_cpp(){
611     log check_cpp "$@"
612     cat > $TMPC
613     log_file $TMPC
614     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
615 }
616
617 check_as(){
618     log check_as "$@"
619     cat > $TMPC
620     log_file $TMPC
621     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
622 }
623
624 check_asm(){
625     log check_asm "$@"
626     name="$1"
627     code="$2"
628     shift 2
629     disable $name
630     check_as "$@" <<EOF && enable $name
631 void foo(void){ __asm__ volatile($code); }
632 EOF
633 }
634
635 check_yasm(){
636     log check_yasm "$@"
637     echo "$1" > $TMPS
638     log_file $TMPS
639     shift 1
640     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
641 }
642
643 check_ld(){
644     log check_ld "$@"
645     flags=''
646     libs=''
647     for f; do
648         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
649     done
650     check_cc $($filter_cflags $flags) || return
651     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
652 }
653
654 check_cppflags(){
655     log check_cppflags "$@"
656     set -- $($filter_cppflags "$@")
657     check_cc "$@" <<EOF && append CPPFLAGS "$@"
658 int x;
659 EOF
660 }
661
662 check_cflags(){
663     log check_cflags "$@"
664     set -- $($filter_cflags "$@")
665     check_cc "$@" <<EOF && append CFLAGS "$@"
666 int x;
667 EOF
668 }
669
670 test_ldflags(){
671     log test_ldflags "$@"
672     check_ld "$@" <<EOF
673 int main(void){ return 0; }
674 EOF
675 }
676
677 check_ldflags(){
678     log check_ldflags "$@"
679     test_ldflags "$@" && add_ldflags "$@"
680 }
681
682 check_header(){
683     log check_header "$@"
684     header=$1
685     shift
686     disable_safe $header
687     check_cpp "$@" <<EOF && enable_safe $header
688 #include <$header>
689 int x;
690 EOF
691 }
692
693 check_func(){
694     log check_func "$@"
695     func=$1
696     shift
697     disable $func
698     check_ld "$@" <<EOF && enable $func
699 extern int $func();
700 int main(void){ $func(); }
701 EOF
702 }
703
704 check_mathfunc(){
705     log check_mathfunc "$@"
706     func=$1
707     shift
708     disable $func
709     check_ld "$@" <<EOF && enable $func
710 #include <math.h>
711 float foo(float f) { return $func(f); }
712 int main(void){ return 0; }
713 EOF
714 }
715
716 check_func_headers(){
717     log check_func_headers "$@"
718     headers=$1
719     funcs=$2
720     shift 2
721     {
722         for hdr in $headers; do
723             echo "#include <$hdr>"
724         done
725         for func in $funcs; do
726             echo "long check_$func(void) { return (long) $func; }"
727         done
728         echo "int main(void) { return 0; }"
729     } | check_ld "$@" && enable $funcs && enable_safe $headers
730 }
731
732 check_cpp_condition(){
733     log check_cpp_condition "$@"
734     header=$1
735     condition=$2
736     shift 2
737     check_cpp $($filter_cppflags "$@") <<EOF
738 #include <$header>
739 #if !($condition)
740 #error "unsatisfied condition: $condition"
741 #endif
742 EOF
743 }
744
745 check_lib(){
746     log check_lib "$@"
747     header="$1"
748     func="$2"
749     shift 2
750     check_header $header && check_func $func "$@" && add_extralibs "$@"
751 }
752
753 check_lib2(){
754     log check_lib2 "$@"
755     headers="$1"
756     funcs="$2"
757     shift 2
758     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
759 }
760
761 check_pkg_config(){
762     log check_pkg_config "$@"
763     pkg="$1"
764     headers="$2"
765     funcs="$3"
766     shift 3
767     $pkg_config --exists $pkg || return
768     pkg_cflags=$($pkg_config --cflags $pkg)
769     pkg_libs=$($pkg_config --libs $pkg)
770     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
771         set_safe ${pkg}_cflags $pkg_cflags   &&
772         set_safe ${pkg}_libs   $pkg_libs
773 }
774
775 check_exec(){
776     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
777 }
778
779 check_exec_crash(){
780     code=$(cat)
781
782     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
783     # are safe but may not be available everywhere.  Thus we use
784     # raise(SIGTERM) instead.  The check is run in a subshell so we
785     # can redirect the "Terminated" message from the shell.  SIGBUS
786     # is not defined by standard C so it is used conditionally.
787
788     (check_exec "$@") >> $logfile 2>&1 <<EOF
789 #include <signal.h>
790 static void sighandler(int sig){
791     raise(SIGTERM);
792 }
793 int main(void){
794     signal(SIGILL, sighandler);
795     signal(SIGFPE, sighandler);
796     signal(SIGSEGV, sighandler);
797 #ifdef SIGBUS
798     signal(SIGBUS, sighandler);
799 #endif
800     { $code }
801 }
802 EOF
803 }
804
805 check_type(){
806     log check_type "$@"
807     headers=$1
808     type=$2
809     shift 2
810     disable_safe "$type"
811     incs=""
812     for hdr in $headers; do
813         incs="$incs
814 #include <$hdr>"
815     done
816     check_cc "$@" <<EOF && enable_safe "$type"
817 $incs
818 $type v;
819 EOF
820 }
821
822 check_struct(){
823     log check_type "$@"
824     headers=$1
825     struct=$2
826     member=$3
827     shift 3
828     disable_safe "${struct}_${member}"
829     incs=""
830     for hdr in $headers; do
831         incs="$incs
832 #include <$hdr>"
833     done
834     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
835 $incs
836 const void *p = &(($struct *)0)->$member;
837 EOF
838 }
839
840 require(){
841     name="$1"
842     header="$2"
843     func="$3"
844     shift 3
845     check_lib $header $func "$@" || die "ERROR: $name not found"
846 }
847
848 require2(){
849     name="$1"
850     headers="$2"
851     func="$3"
852     shift 3
853     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
854 }
855
856 require_pkg_config(){
857     pkg="$1"
858     check_pkg_config "$@" || die "ERROR: $pkg not found"
859     add_cflags    $(get_safe ${pkg}_cflags)
860     add_extralibs $(get_safe ${pkg}_libs)
861 }
862
863 check_host_cc(){
864     log check_host_cc "$@"
865     cat > $TMPC
866     log_file $TMPC
867     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
868 }
869
870 check_host_cflags(){
871     log check_host_cflags "$@"
872     check_host_cc "$@" <<EOF && append host_cflags "$@"
873 int x;
874 EOF
875 }
876
877 apply(){
878     file=$1
879     shift
880     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
881 }
882
883 cp_if_changed(){
884     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
885     mkdir -p "$(dirname $2)"
886     cp -f "$1" "$2"
887 }
888
889 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
890 # system-dependent things.
891
892 COMPONENT_LIST="
893     bsfs
894     decoders
895     demuxers
896     encoders
897     filters
898     hwaccels
899     indevs
900     muxers
901     outdevs
902     parsers
903     protocols
904 "
905
906 CONFIG_LIST="
907     $COMPONENT_LIST
908     aandct
909     ac3dsp
910     avcodec
911     avdevice
912     avfilter
913     avformat
914     avisynth
915     bzlib
916     dct
917     doc
918     dwt
919     dxva2
920     fastdiv
921     ffmpeg
922     avconv
923     avplay
924     avprobe
925     avserver
926     fft
927     frei0r
928     gnutls
929     golomb
930     gpl
931     gray
932     h264dsp
933     h264pred
934     hardcoded_tables
935     huffman
936     libcdio
937     libdc1394
938     libdirac
939     libfaac
940     libfreetype
941     libgsm
942     libmp3lame
943     libnut
944     libopencore_amrnb
945     libopencore_amrwb
946     libopencv
947     libopenjpeg
948     libpulse
949     librtmp
950     libschroedinger
951     libspeex
952     libtheora
953     libvo_aacenc
954     libvo_amrwbenc
955     libvorbis
956     libvpx
957     libx264
958     libxavs
959     libxvid
960     lpc
961     lsp
962     mdct
963     memalign_hack
964     mlib
965     mpegaudiodsp
966     network
967     nonfree
968     openssl
969     pic
970     postproc
971     rdft
972     rtpdec
973     runtime_cpudetect
974     shared
975     sinewin
976     small
977     sram
978     static
979     swscale
980     swscale_alpha
981     thumb
982     vaapi
983     vda
984     vdpau
985     version3
986     x11grab
987     zlib
988 "
989
990 THREADS_LIST='
991     pthreads
992     w32threads
993 '
994
995 ARCH_LIST='
996     alpha
997     arm
998     avr32
999     avr32_ap
1000     avr32_uc
1001     bfin
1002     ia64
1003     m68k
1004     mips
1005     mips64
1006     parisc
1007     ppc
1008     ppc64
1009     s390
1010     sh4
1011     sparc
1012     sparc64
1013     tomi
1014     x86
1015     x86_32
1016     x86_64
1017 '
1018
1019 ARCH_EXT_LIST='
1020     altivec
1021     amd3dnow
1022     amd3dnowext
1023     armv5te
1024     armv6
1025     armv6t2
1026     armvfp
1027     avx
1028     iwmmxt
1029     mmi
1030     mmx
1031     mmx2
1032     neon
1033     ppc4xx
1034     sse
1035     ssse3
1036     vfpv3
1037     vis
1038 '
1039
1040 HAVE_LIST_PUB='
1041     bigendian
1042     fast_unaligned
1043 '
1044
1045 HAVE_LIST="
1046     $ARCH_EXT_LIST
1047     $HAVE_LIST_PUB
1048     $THREADS_LIST
1049     aligned_stack
1050     alsa_asoundlib_h
1051     altivec_h
1052     arpa_inet_h
1053     asm_mod_y
1054     attribute_may_alias
1055     attribute_packed
1056     bswap
1057     closesocket
1058     cmov
1059     dcbzl
1060     dev_bktr_ioctl_bt848_h
1061     dev_bktr_ioctl_meteor_h
1062     dev_ic_bt8xx_h
1063     dev_video_meteor_ioctl_meteor_h
1064     dev_video_bktr_ioctl_bt848_h
1065     dlfcn_h
1066     dlopen
1067     dos_paths
1068     ebp_available
1069     ebx_available
1070     exp2
1071     exp2f
1072     fast_64bit
1073     fast_clz
1074     fast_cmov
1075     fcntl
1076     fork
1077     getaddrinfo
1078     gethrtime
1079     GetProcessMemoryInfo
1080     GetProcessTimes
1081     getrusage
1082     gnu_as
1083     struct_rusage_ru_maxrss
1084     ibm_asm
1085     inet_aton
1086     inline_asm
1087     isatty
1088     ldbrx
1089     libdc1394_1
1090     libdc1394_2
1091     llrint
1092     llrintf
1093     local_aligned_16
1094     local_aligned_8
1095     localtime_r
1096     log2
1097     log2f
1098     loongson
1099     lrint
1100     lrintf
1101     lzo1x_999_compress
1102     machine_ioctl_bt848_h
1103     machine_ioctl_meteor_h
1104     malloc_h
1105     MapViewOfFile
1106     memalign
1107     mkstemp
1108     mmap
1109     posix_memalign
1110     round
1111     roundf
1112     sdl
1113     sdl_video_size
1114     setmode
1115     sndio_h
1116     socklen_t
1117     soundcard_h
1118     poll_h
1119     setrlimit
1120     strerror_r
1121     strptime
1122     strtok_r
1123     struct_addrinfo
1124     struct_ipv6_mreq
1125     struct_sockaddr_in6
1126     struct_sockaddr_sa_len
1127     struct_sockaddr_storage
1128     symver
1129     symver_gnu_asm
1130     symver_asm_label
1131     sys_mman_h
1132     sys_resource_h
1133     sys_select_h
1134     sys_soundcard_h
1135     sys_videoio_h
1136     threads
1137     trunc
1138     truncf
1139     vfp_args
1140     VirtualAlloc
1141     winsock2_h
1142     xform_asm
1143     xmm_clobbers
1144     yasm
1145 "
1146
1147 # options emitted with CONFIG_ prefix but not available on command line
1148 CONFIG_EXTRA="
1149     avutil
1150     gplv3
1151     lgplv3
1152 "
1153
1154 CMDLINE_SELECT="
1155     $ARCH_EXT_LIST
1156     $CONFIG_LIST
1157     $THREADS_LIST
1158     asm
1159     cross_compile
1160     debug
1161     extra_warnings
1162     logging
1163     optimizations
1164     symver
1165     yasm
1166 "
1167
1168 PATHS_LIST='
1169     bindir
1170     datadir
1171     incdir
1172     libdir
1173     mandir
1174     prefix
1175     shlibdir
1176 '
1177
1178 CMDLINE_SET="
1179     $PATHS_LIST
1180     ar
1181     arch
1182     as
1183     build_suffix
1184     cc
1185     cpu
1186     cross_prefix
1187     dep_cc
1188     extra_version
1189     host_cc
1190     host_cflags
1191     host_ldflags
1192     host_libs
1193     host_os
1194     ld
1195     logfile
1196     malloc_prefix
1197     nm
1198     optflags
1199     pkg_config
1200     samples
1201     sysinclude
1202     sysroot
1203     target_exec
1204     target_os
1205     target_path
1206 "
1207
1208 CMDLINE_APPEND="
1209     extra_cflags
1210 "
1211
1212 # code dependency declarations
1213
1214 # architecture extensions
1215
1216 armv5te_deps="arm"
1217 armv6_deps="arm"
1218 armv6t2_deps="arm"
1219 armvfp_deps="arm"
1220 iwmmxt_deps="arm"
1221 neon_deps="arm"
1222 vfpv3_deps="armvfp"
1223
1224 mmi_deps="mips"
1225
1226 altivec_deps="ppc"
1227 ppc4xx_deps="ppc"
1228
1229 vis_deps="sparc"
1230
1231 x86_64_suggest="cmov fast_cmov"
1232 amd3dnow_deps="mmx"
1233 amd3dnowext_deps="amd3dnow"
1234 mmx_deps="x86"
1235 mmx2_deps="mmx"
1236 sse_deps="mmx"
1237 ssse3_deps="sse"
1238 avx_deps="ssse3"
1239
1240 aligned_stack_if_any="ppc x86"
1241 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1242 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1243 fast_unaligned_if_any="armv6 ppc x86"
1244
1245 need_memalign="altivec neon sse"
1246 inline_asm_deps="!tms470"
1247
1248 symver_if_any="symver_asm_label symver_gnu_asm"
1249
1250 # subsystems
1251 dct_select="rdft"
1252 mdct_select="fft"
1253 rdft_select="fft"
1254 mpegaudiodsp_select="dct"
1255
1256 # decoders / encoders / hardware accelerators
1257 aac_decoder_select="mdct sinewin"
1258 aac_encoder_select="mdct sinewin"
1259 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1260 ac3_decoder_select="mdct ac3dsp ac3_parser"
1261 ac3_encoder_select="mdct ac3dsp"
1262 ac3_fixed_encoder_select="mdct ac3dsp"
1263 alac_encoder_select="lpc"
1264 amrnb_decoder_select="lsp"
1265 amrwb_decoder_select="lsp"
1266 atrac1_decoder_select="mdct sinewin"
1267 atrac3_decoder_select="mdct"
1268 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1269 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1270 cavs_decoder_select="golomb"
1271 cook_decoder_select="mdct sinewin"
1272 cscd_decoder_suggest="zlib"
1273 dca_decoder_select="mdct"
1274 dnxhd_encoder_select="aandct"
1275 dxa_decoder_select="zlib"
1276 eac3_decoder_select="ac3_decoder"
1277 eac3_encoder_select="mdct ac3dsp"
1278 eamad_decoder_select="aandct"
1279 eatgq_decoder_select="aandct"
1280 eatqi_decoder_select="aandct"
1281 ffv1_decoder_select="golomb"
1282 flac_decoder_select="golomb"
1283 flac_encoder_select="golomb lpc"
1284 flashsv_decoder_select="zlib"
1285 flashsv_encoder_select="zlib"
1286 flashsv2_decoder_select="zlib"
1287 flv_decoder_select="h263_decoder"
1288 flv_encoder_select="h263_encoder"
1289 fraps_decoder_select="huffman"
1290 h261_encoder_select="aandct"
1291 h263_decoder_select="h263_parser"
1292 h263_encoder_select="aandct"
1293 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1294 h263i_decoder_select="h263_decoder"
1295 h263p_encoder_select="h263_encoder"
1296 h264_decoder_select="golomb h264dsp h264pred"
1297 h264_dxva2_hwaccel_deps="dxva2api_h"
1298 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1299 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1300 h264_vda_hwaccel_select="vda h264_decoder"
1301 h264_vdpau_decoder_select="vdpau h264_decoder"
1302 imc_decoder_select="fft mdct sinewin"
1303 jpegls_decoder_select="golomb"
1304 jpegls_encoder_select="golomb"
1305 ljpeg_encoder_select="aandct"
1306 loco_decoder_select="golomb"
1307 mjpeg_encoder_select="aandct"
1308 mlp_decoder_select="mlp_parser"
1309 mp1_decoder_select="mpegaudiodsp"
1310 mp2_decoder_select="mpegaudiodsp"
1311 mp3adu_decoder_select="mpegaudiodsp"
1312 mp3_decoder_select="mpegaudiodsp"
1313 mp3on4_decoder_select="mpegaudiodsp"
1314 mp1float_decoder_select="mpegaudiodsp"
1315 mp2float_decoder_select="mpegaudiodsp"
1316 mp3adufloat_decoder_select="mpegaudiodsp"
1317 mp3float_decoder_select="mpegaudiodsp"
1318 mp3on4float_decoder_select="mpegaudiodsp"
1319 mpeg1video_encoder_select="aandct"
1320 mpeg2video_encoder_select="aandct"
1321 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1322 mpeg4_encoder_select="h263_encoder"
1323 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1324 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1325 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1326 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1327 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1328 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1329 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1330 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1331 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1332 msmpeg4v1_decoder_select="h263_decoder"
1333 msmpeg4v1_encoder_select="h263_encoder"
1334 msmpeg4v2_decoder_select="h263_decoder"
1335 msmpeg4v2_encoder_select="h263_encoder"
1336 msmpeg4v3_decoder_select="h263_decoder"
1337 msmpeg4v3_encoder_select="h263_encoder"
1338 nellymoser_decoder_select="mdct sinewin"
1339 nellymoser_encoder_select="mdct sinewin"
1340 png_decoder_select="zlib"
1341 png_encoder_select="zlib"
1342 qcelp_decoder_select="lsp"
1343 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1344 ra_144_encoder_select="lpc"
1345 rv10_decoder_select="h263_decoder"
1346 rv10_encoder_select="h263_encoder"
1347 rv20_decoder_select="h263_decoder"
1348 rv20_encoder_select="h263_encoder"
1349 rv30_decoder_select="golomb h264pred"
1350 rv40_decoder_select="golomb h264pred"
1351 shorten_decoder_select="golomb"
1352 sipr_decoder_select="lsp"
1353 snow_decoder_select="dwt"
1354 snow_encoder_select="aandct dwt"
1355 svq1_encoder_select="aandct"
1356 svq3_decoder_select="golomb h264dsp h264pred"
1357 svq3_decoder_suggest="zlib"
1358 theora_decoder_select="vp3_decoder"
1359 tiff_decoder_suggest="zlib"
1360 tiff_encoder_suggest="zlib"
1361 truehd_decoder_select="mlp_decoder"
1362 tscc_decoder_select="zlib"
1363 twinvq_decoder_select="mdct lsp sinewin"
1364 vc1_decoder_select="h263_decoder"
1365 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1366 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1367 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1368 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1369 vc1image_decoder_select="vc1_decoder"
1370 vorbis_decoder_select="mdct"
1371 vorbis_encoder_select="mdct"
1372 vp6_decoder_select="huffman"
1373 vp6a_decoder_select="vp6_decoder"
1374 vp6f_decoder_select="vp6_decoder"
1375 vp8_decoder_select="h264pred"
1376 wmapro_decoder_select="mdct sinewin"
1377 wmav1_decoder_select="mdct sinewin"
1378 wmav1_encoder_select="mdct sinewin"
1379 wmav2_decoder_select="mdct sinewin"
1380 wmav2_encoder_select="mdct sinewin"
1381 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1382 wmv1_decoder_select="h263_decoder"
1383 wmv1_encoder_select="h263_encoder"
1384 wmv2_decoder_select="h263_decoder"
1385 wmv2_encoder_select="h263_encoder"
1386 wmv3_decoder_select="vc1_decoder"
1387 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1388 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1389 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1390 wmv3image_decoder_select="wmv3_decoder"
1391 zlib_decoder_select="zlib"
1392 zlib_encoder_select="zlib"
1393 zmbv_decoder_select="zlib"
1394 zmbv_encoder_select="zlib"
1395
1396 vaapi_deps="va_va_h"
1397 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1398 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1399
1400 # parsers
1401 h264_parser_select="golomb h264dsp h264pred"
1402
1403 # external libraries
1404 libdirac_decoder_deps="libdirac !libschroedinger"
1405 libdirac_encoder_deps="libdirac"
1406 libfaac_encoder_deps="libfaac"
1407 libgsm_decoder_deps="libgsm"
1408 libgsm_encoder_deps="libgsm"
1409 libgsm_ms_decoder_deps="libgsm"
1410 libgsm_ms_encoder_deps="libgsm"
1411 libmp3lame_encoder_deps="libmp3lame"
1412 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1413 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1414 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1415 libopenjpeg_decoder_deps="libopenjpeg"
1416 libschroedinger_decoder_deps="libschroedinger"
1417 libschroedinger_encoder_deps="libschroedinger"
1418 libspeex_decoder_deps="libspeex"
1419 libspeex_encoder_deps="libspeex"
1420 libtheora_encoder_deps="libtheora"
1421 libvo_aacenc_encoder_deps="libvo_aacenc"
1422 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1423 libvorbis_encoder_deps="libvorbis"
1424 libvpx_decoder_deps="libvpx"
1425 libvpx_encoder_deps="libvpx"
1426 libx264_encoder_deps="libx264"
1427 libxavs_encoder_deps="libxavs"
1428 libxvid_encoder_deps="libxvid"
1429
1430 # demuxers / muxers
1431 ac3_demuxer_select="ac3_parser"
1432 asf_stream_muxer_select="asf_muxer"
1433 avisynth_demuxer_deps="avisynth"
1434 dirac_demuxer_select="dirac_parser"
1435 eac3_demuxer_select="ac3_parser"
1436 flac_demuxer_select="flac_parser"
1437 ipod_muxer_select="mov_muxer"
1438 libnut_demuxer_deps="libnut"
1439 libnut_muxer_deps="libnut"
1440 matroska_audio_muxer_select="matroska_muxer"
1441 matroska_demuxer_suggest="zlib bzlib"
1442 mov_demuxer_suggest="zlib"
1443 mp3_demuxer_select="mpegaudio_parser"
1444 mp4_muxer_select="mov_muxer"
1445 mpegtsraw_demuxer_select="mpegts_demuxer"
1446 mxf_d10_muxer_select="mxf_muxer"
1447 ogg_demuxer_select="golomb"
1448 psp_muxer_select="mov_muxer"
1449 rtp_demuxer_select="sdp_demuxer"
1450 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1451 rtsp_demuxer_select="http_protocol rtpdec"
1452 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1453 sap_demuxer_select="sdp_demuxer"
1454 sap_muxer_select="rtp_muxer rtp_protocol"
1455 sdp_demuxer_select="rtpdec"
1456 spdif_muxer_select="aac_parser"
1457 tg2_muxer_select="mov_muxer"
1458 tgp_muxer_select="mov_muxer"
1459 w64_demuxer_deps="wav_demuxer"
1460
1461 # indevs / outdevs
1462 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1463 alsa_outdev_deps="alsa_asoundlib_h"
1464 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1465 dv1394_indev_deps="dv1394 dv_demuxer"
1466 fbdev_indev_deps="linux_fb_h"
1467 jack_indev_deps="jack_jack_h"
1468 libcdio_indev_deps="libcdio"
1469 libdc1394_indev_deps="libdc1394"
1470 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1471 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1472 pulse_indev_deps="libpulse"
1473 sndio_indev_deps="sndio_h"
1474 sndio_outdev_deps="sndio_h"
1475 v4l_indev_deps="linux_videodev_h"
1476 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1477 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1478 vfwcap_indev_extralibs="-lavicap32"
1479 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1480 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1481
1482 # protocols
1483 gopher_protocol_deps="network"
1484 httpproxy_protocol_deps="network"
1485 httpproxy_protocol_select="tcp_protocol"
1486 http_protocol_deps="network"
1487 http_protocol_select="tcp_protocol"
1488 https_protocol_select="tls_protocol"
1489 mmsh_protocol_select="http_protocol"
1490 mmst_protocol_deps="network"
1491 rtmp_protocol_select="tcp_protocol"
1492 rtp_protocol_select="udp_protocol"
1493 tcp_protocol_deps="network"
1494 tls_protocol_deps_any="openssl gnutls"
1495 tls_protocol_select="tcp_protocol"
1496 udp_protocol_deps="network"
1497
1498 # filters
1499 blackframe_filter_deps="gpl"
1500 boxblur_filter_deps="gpl"
1501 cropdetect_filter_deps="gpl"
1502 delogo_filter_deps="gpl"
1503 drawtext_filter_deps="libfreetype"
1504 frei0r_filter_deps="frei0r dlopen strtok_r"
1505 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1506 hqdn3d_filter_deps="gpl"
1507 ocv_filter_deps="libopencv"
1508 scale_filter_deps="swscale"
1509 yadif_filter_deps="gpl"
1510
1511 # libraries
1512 avdevice_deps="avcodec avformat"
1513 avformat_deps="avcodec"
1514 postproc_deps="gpl"
1515
1516 # programs
1517 ffmpeg_deps="avcodec avformat swscale"
1518 ffmpeg_select="buffer_filter"
1519 avconv_deps="avcodec avformat swscale"
1520 avconv_select="buffer_filter"
1521 avplay_deps="avcodec avformat swscale sdl"
1522 avplay_select="rdft"
1523 avprobe_deps="avcodec avformat"
1524 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1525 avserver_extralibs='$ldl'
1526
1527 doc_deps="texi2html"
1528
1529 # tests
1530
1531 test_deps(){
1532     suf1=$1
1533     suf2=$2
1534     shift 2
1535     for v; do
1536         dep=${v%=*}
1537         tests=${v#*=}
1538         for name in ${tests}; do
1539             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1540         done
1541     done
1542 }
1543
1544 mxf_d10_test_deps="avfilter"
1545 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1546
1547 test_deps _encoder _decoder                                             \
1548     adpcm_g726=g726                                                     \
1549     adpcm_ima_qt                                                        \
1550     adpcm_ima_wav                                                       \
1551     adpcm_ms                                                            \
1552     adpcm_swf                                                           \
1553     adpcm_yamaha=adpcm_yam                                              \
1554     alac                                                                \
1555     asv1                                                                \
1556     asv2                                                                \
1557     bmp                                                                 \
1558     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1559     dvvideo="dv dv50"                                                   \
1560     ffv1                                                                \
1561     flac                                                                \
1562     flashsv                                                             \
1563     flv                                                                 \
1564     gif                                                                 \
1565     h261                                                                \
1566     h263="h263 h263p"                                                   \
1567     huffyuv                                                             \
1568     jpegls                                                              \
1569     mjpeg="jpg mjpeg ljpeg"                                             \
1570     mp2                                                                 \
1571     mpeg1video="mpeg mpeg1b"                                            \
1572     mpeg2video="mpeg2 mpeg2thread"                                      \
1573     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1574     msmpeg4v3=msmpeg4                                                   \
1575     msmpeg4v2                                                           \
1576     pbm=pbmpipe                                                         \
1577     pcx                                                                 \
1578     pgm="pgm pgmpipe"                                                   \
1579     png                                                                 \
1580     ppm="ppm ppmpipe"                                                   \
1581     rawvideo="rgb yuv"                                                  \
1582     roq                                                                 \
1583     rv10                                                                \
1584     rv20                                                                \
1585     sgi                                                                 \
1586     snow="snow snowll"                                                  \
1587     svq1                                                                \
1588     targa=tga                                                           \
1589     tiff                                                                \
1590     wmav1                                                               \
1591     wmav2                                                               \
1592     wmv1                                                                \
1593     wmv2                                                                \
1594
1595 test_deps _muxer _demuxer                                               \
1596     aiff                                                                \
1597     pcm_alaw=alaw                                                       \
1598     asf                                                                 \
1599     au                                                                  \
1600     avi                                                                 \
1601     dv=dv_fmt                                                           \
1602     ffm                                                                 \
1603     flv=flv_fmt                                                         \
1604     gxf                                                                 \
1605     matroska=mkv                                                        \
1606     mmf                                                                 \
1607     mov                                                                 \
1608     pcm_mulaw=mulaw                                                     \
1609     mxf="mxf mxf_d10"                                                   \
1610     nut                                                                 \
1611     ogg                                                                 \
1612     rawvideo=pixfmt                                                     \
1613     rm                                                                  \
1614     swf                                                                 \
1615     mpegts=ts                                                           \
1616     voc                                                                 \
1617     wav                                                                 \
1618     yuv4mpegpipe=yuv4mpeg                                               \
1619
1620 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1621 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1622
1623 # default parameters
1624
1625 logfile="config.log"
1626
1627 # installation paths
1628 prefix_default="/usr/local"
1629 bindir_default='${prefix}/bin'
1630 datadir_default='${prefix}/share/avconv'
1631 incdir_default='${prefix}/include'
1632 libdir_default='${prefix}/lib'
1633 mandir_default='${prefix}/share/man'
1634 shlibdir_default="$libdir_default"
1635
1636 # toolchain
1637 ar_default="ar"
1638 cc_default="gcc"
1639 cc_version=\"unknown\"
1640 host_cc_default="gcc"
1641 ln_s="ln -sf"
1642 nm_default="nm"
1643 objformat="elf"
1644 pkg_config_default=pkg-config
1645 ranlib="ranlib"
1646 yasmexe="yasm"
1647 nogas=":"
1648
1649 nm_opts='-g'
1650
1651 # machine
1652 arch_default=$(uname -m)
1653 cpu="generic"
1654
1655 # OS
1656 target_os_default=$(tolower $(uname -s))
1657 host_os=$target_os_default
1658
1659 # configurable options
1660 enable avcodec
1661 enable avdevice
1662 enable avfilter
1663 enable avformat
1664 enable avutil
1665 enable asm
1666 enable debug
1667 enable doc
1668 enable fastdiv
1669 enable ffmpeg
1670 enable avconv
1671 enable avplay
1672 enable avprobe
1673 enable avserver
1674 enable network
1675 enable optimizations
1676 enable postproc
1677 enable protocols
1678 enable static
1679 enable swscale
1680 enable swscale_alpha
1681
1682 # build settings
1683 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1684 AVSERVERLDFLAGS=-Wl,-E
1685 LIBPREF="lib"
1686 LIBSUF=".a"
1687 FULLNAME='$(NAME)$(BUILDSUF)'
1688 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1689 SLIBPREF="lib"
1690 SLIBSUF=".so"
1691 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1692 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1693 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1694 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1695 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1696 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1697
1698 AS_O='-o $@'
1699 CC_O='-o $@'
1700
1701 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1702 host_libs='-lm'
1703
1704 target_path='$(CURDIR)'
1705
1706 # since the object filename is not given with the -MM flag, the compiler
1707 # is only able to print the basename, and we must add the path ourselves
1708 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1709 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1710
1711 # find source path
1712 if test -f configure; then
1713     source_path=.
1714 else
1715     source_path=$(cd $(dirname "$0"); pwd)
1716     echo "$source_path" | grep -q '[[:blank:]]' &&
1717         die "Out of tree builds are impossible with whitespace in source path."
1718     test -e "$source_path/config.h" &&
1719         die "Out of tree builds are impossible with config.h in source dir."
1720 fi
1721
1722 for v in "$@"; do
1723     r=${v#*=}
1724     l=${v%"$r"}
1725     r=$(sh_quote "$r")
1726     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1727 done
1728
1729 find_things(){
1730     thing=$1
1731     pattern=$2
1732     file=$source_path/$3
1733     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1734 }
1735
1736 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1737 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1738 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1739 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1740 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1741 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1742 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1743 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1744 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1745 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1746 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1747
1748 find_tests(){
1749     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1750 }
1751
1752 ACODEC_TESTS=$(find_tests acodec)
1753 VCODEC_TESTS=$(find_tests vsynth1)
1754 LAVF_TESTS=$(find_tests lavf)
1755 LAVFI_TESTS=$(find_tests lavfi)
1756 SEEK_TESTS=$(find_tests seek seek_)
1757
1758 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1759
1760 for n in $COMPONENT_LIST; do
1761     v=$(toupper ${n%s})_LIST
1762     eval enable \$$v
1763     eval ${n}_if_any="\$$v"
1764 done
1765
1766 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1767
1768 die_unknown(){
1769     echo "Unknown option \"$1\"."
1770     echo "See $0 --help for available options."
1771     exit 1
1772 }
1773
1774 show_list() {
1775     suffix=_$1
1776     shift
1777     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1778     exit 0
1779 }
1780
1781 for opt do
1782     optval="${opt#*=}"
1783     case "$opt" in
1784     --extra-ldflags=*) add_ldflags $optval
1785     ;;
1786     --extra-libs=*) add_extralibs $optval
1787     ;;
1788     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1789     ;;
1790     --enable-debug=*) debuglevel="$optval"
1791     ;;
1792     --disable-everything)
1793     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1794     ;;
1795     --enable-*=*|--disable-*=*)
1796     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1797     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1798     eval list=\$$(toupper $thing)_LIST
1799     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1800     $action $(filter "$name" $list)
1801     ;;
1802     --enable-?*|--disable-?*)
1803     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1804     if is_in $option $COMPONENT_LIST; then
1805         test $action = disable && action=unset
1806         eval $action \$$(toupper ${option%s})_LIST
1807     elif is_in $option $CMDLINE_SELECT; then
1808         $action $option
1809     else
1810         die_unknown $opt
1811     fi
1812     ;;
1813     --list-*)
1814         NAME="${opt#--list-}"
1815         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1816         NAME=${NAME%s}
1817         eval show_list $NAME \$$(toupper $NAME)_LIST
1818     ;;
1819     --help|-h) show_help
1820     ;;
1821     *)
1822     optname="${opt%%=*}"
1823     optname="${optname#--}"
1824     optname=$(echo "$optname" | sed 's/-/_/g')
1825     if is_in $optname $CMDLINE_SET; then
1826         eval $optname='$optval'
1827     elif is_in $optname $CMDLINE_APPEND; then
1828         append $optname "$optval"
1829     else
1830          die_unknown $opt
1831     fi
1832     ;;
1833     esac
1834 done
1835
1836 disabled logging && logfile=/dev/null
1837
1838 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1839 set >> $logfile
1840
1841 test -n "$cross_prefix" && enable cross_compile
1842
1843 if enabled cross_compile; then
1844     test -n "$arch" && test -n "$target_os" ||
1845         die "Must specify target arch and OS when cross-compiling"
1846 fi
1847
1848 set_default arch target_os
1849
1850 ar_default="${cross_prefix}${ar_default}"
1851 cc_default="${cross_prefix}${cc_default}"
1852 nm_default="${cross_prefix}${nm_default}"
1853 pkg_config_default="${cross_prefix}${pkg_config_default}"
1854 ranlib="${cross_prefix}${ranlib}"
1855
1856 sysinclude_default="${sysroot}/usr/include"
1857
1858 set_default cc nm pkg_config sysinclude
1859 enabled cross_compile || host_cc_default=$cc
1860 set_default host_cc
1861
1862 if ! $pkg_config --version >/dev/null 2>&1; then
1863     warn "$pkg_config not found, library detection may fail."
1864     pkg_config=false
1865 fi
1866
1867 exesuf() {
1868     case $1 in
1869         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1870     esac
1871 }
1872
1873 EXESUF=$(exesuf $target_os)
1874 HOSTEXESUF=$(exesuf $host_os)
1875
1876 # set temporary file name
1877 : ${TMPDIR:=$TEMPDIR}
1878 : ${TMPDIR:=$TMP}
1879 : ${TMPDIR:=/tmp}
1880
1881 if ! check_cmd mktemp -u XXXXXX; then
1882     # simple replacement for missing mktemp
1883     # NOT SAFE FOR GENERAL USE
1884     mktemp(){
1885         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1886     }
1887 fi
1888
1889 tmpfile(){
1890     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1891         (set -C; exec > $tmp) 2>/dev/null ||
1892         die "Unable to create temporary file in $TMPDIR."
1893     append TMPFILES $tmp
1894     eval $1=$tmp
1895 }
1896
1897 trap 'rm -f -- $TMPFILES' EXIT
1898
1899 tmpfile TMPC  .c
1900 tmpfile TMPE  $EXESUF
1901 tmpfile TMPH  .h
1902 tmpfile TMPO  .o
1903 tmpfile TMPS  .S
1904 tmpfile TMPV  .ver
1905 tmpfile TMPSH .sh
1906 tmpfile TMPASM .asm
1907
1908 unset -f mktemp
1909
1910 chmod +x $TMPE
1911
1912 # make sure we can execute files in $TMPDIR
1913 cat > $TMPSH 2>> $logfile <<EOF
1914 #! /bin/sh
1915 EOF
1916 chmod +x $TMPSH >> $logfile 2>&1
1917 if ! $TMPSH >> $logfile 2>&1; then
1918     cat <<EOF
1919 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1920 variable to another directory and make sure that it is not mounted noexec.
1921 EOF
1922     die "Sanity test failed."
1923 fi
1924
1925 filter_cflags=echo
1926 filter_cppflags=echo
1927 filter_asflags=echo
1928
1929 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1930     cc_type=llvm_gcc
1931     cc_version=__VERSION__
1932     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1933     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1934     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1935     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1936     speed_cflags='-O3'
1937     size_cflags='-Os'
1938 elif $cc -v 2>&1 | grep -qi ^gcc; then
1939     cc_type=gcc
1940     cc_version=__VERSION__
1941     gcc_version=$($cc --version | head -n1)
1942     gcc_basever=$($cc -dumpversion)
1943     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1944     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1945     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1946     if ! $cc -dumpversion | grep -q '^2\.'; then
1947         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1948         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1949     fi
1950     speed_cflags='-O3'
1951     size_cflags='-Os'
1952 elif $cc --version 2>/dev/null | grep -q Intel; then
1953     cc_type=icc
1954     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1955     cc_ident=$($cc --version | head -n1)
1956     icc_version=$($cc -dumpversion)
1957     CC_DEPFLAGS='-MMD'
1958     AS_DEPFLAGS='-MMD'
1959     speed_cflags='-O3'
1960     size_cflags='-Os'
1961     noopt_cflags='-O1'
1962 elif $cc -v 2>&1 | grep -q xlc; then
1963     cc_type=xlc
1964     cc_version="AV_STRINGIFY(__IBMC__)"
1965     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1966     speed_cflags='-O5'
1967     size_cflags='-O5 -qcompact'
1968 elif $cc -V 2>/dev/null | grep -q Compaq; then
1969     cc_type=ccc
1970     cc_version="AV_STRINGIFY(__DECC_VER)"
1971     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1972     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1973     debuglevel=3
1974     add_ldflags -Wl,-z,now # calls to libots crash without this
1975     speed_cflags='-fast'
1976     size_cflags='-O1'
1977 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1978     test -d "$sysroot" || die "No valid sysroot specified."
1979     cc_type=armcc
1980     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1981     cc_ident=$($cc --vsn | head -n1)
1982     armcc_conf="$PWD/armcc.conf"
1983     $cc --arm_linux_configure                 \
1984         --arm_linux_config_file="$armcc_conf" \
1985         --configure_sysroot="$sysroot"        \
1986         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1987         die "Error creating armcc configuration file."
1988     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1989     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1990     as_default="${cross_prefix}gcc"
1991     CC_DEPFLAGS='-MMD'
1992     AS_DEPFLAGS='-MMD'
1993     speed_cflags='-O3'
1994     size_cflags='-Os'
1995     filter_asflags="filter_out -W${armcc_opt}*"
1996 elif $cc -version 2>/dev/null | grep -q TMS470; then
1997     cc_type=tms470
1998     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1999     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2000     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2001     CC_O='-fr=$(@D)'
2002     as_default="${cross_prefix}gcc"
2003     ld_default="${cross_prefix}gcc"
2004     TMPO=$(basename $TMPC .c).o
2005     append TMPFILES $TMPO
2006     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2007     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2008     AS_DEPFLAGS='-MMD'
2009     speed_cflags='-O3 -mf=5'
2010     size_cflags='-O3 -mf=2'
2011     filter_cflags=tms470_flags
2012     tms470_flags(){
2013         for flag; do
2014             case $flag in
2015                 -march=*|-mcpu=*)
2016                     case "${flag#*=}" in
2017                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2018                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2019                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2020                         armv6*|arm11*)          echo -mv=6   ;;
2021                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2022                                                 echo -mv=5e  ;;
2023                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2024                     esac
2025                     ;;
2026                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2027                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2028                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2029                 -msoft-float)   echo --float_support=vfplib       ;;
2030                 -O[0-3]|-mf=*)  echo $flag                        ;;
2031                 -g)             echo -g -mn                       ;;
2032                 -pds=*)         echo $flag                        ;;
2033             esac
2034         done
2035     }
2036 elif $cc -v 2>&1 | grep -q clang; then
2037     cc_type=clang
2038     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2039         cc_version=__clang_version__ || cc_version=__VERSION__
2040     cc_ident=$($cc --version | head -n1)
2041     CC_DEPFLAGS='-MMD'
2042     AS_DEPFLAGS='-MMD'
2043     speed_cflags='-O3'
2044     size_cflags='-Os'
2045 elif $cc -V 2>&1 | grep -q Sun; then
2046     cc_type=suncc
2047     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2048     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2049     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2050     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2051     add_ldflags -xc99
2052     speed_cflags='-O5'
2053     size_cflags='-O5 -xspace'
2054     filter_cflags=suncc_flags
2055     suncc_flags(){
2056         for flag; do
2057             case $flag in
2058                 -march=*|-mcpu=*)
2059                     case "${flag#*=}" in
2060                         native)                   echo -xtarget=native       ;;
2061                         v9|niagara)               echo -xarch=sparc          ;;
2062                         ultrasparc)               echo -xarch=sparcvis       ;;
2063                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2064                         i586|pentium)             echo -xchip=pentium        ;;
2065                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2066                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2067                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2068                         pentium4*)          echo -xtarget=pentium4           ;;
2069                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2070                         *-sse3)             echo -xarch=sse3                 ;;
2071                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2072                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2073                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2074                         k8|opteron|athlon64|athlon-fx)
2075                                                   echo -xarch=sse2a          ;;
2076                         athlon*)                  echo -xarch=pentium_proa   ;;
2077                     esac
2078                     ;;
2079                 -std=c99)             echo -xc99              ;;
2080                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2081                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2082                 -W*,*)                echo $flag              ;;
2083                 -f*-*|-W*)                                    ;;
2084                 *)                    echo $flag              ;;
2085             esac
2086         done
2087     }
2088 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2089     cc_type=pathscale
2090     cc_version=__PATHSCALE__
2091     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2092     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2093     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2094     speed_cflags='-O2'
2095     size_cflags='-Os'
2096     filter_cflags='filter_out -Wdisabled-optimization'
2097 elif $cc -v 2>&1 | grep -q Open64; then
2098     cc_type=open64
2099     cc_version=__OPEN64__
2100     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2101     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2102     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2103     speed_cflags='-O2'
2104     size_cflags='-Os'
2105     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2106 fi
2107
2108 test -n "$cc_type" && enable $cc_type ||
2109     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2110
2111 : ${as_default:=$cc}
2112 : ${dep_cc_default:=$cc}
2113 : ${ld_default:=$cc}
2114 set_default ar as dep_cc ld
2115
2116 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2117 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2118
2119 add_cflags $extra_cflags
2120 add_asflags $extra_cflags
2121
2122 if test -n "$sysroot"; then
2123     case "$cc_type" in
2124         gcc|llvm_gcc|clang)
2125             add_cppflags --sysroot="$sysroot"
2126             add_ldflags --sysroot="$sysroot"
2127         ;;
2128         tms470)
2129             add_cppflags -I"$sysinclude"
2130             add_ldflags  --sysroot="$sysroot"
2131         ;;
2132     esac
2133 fi
2134
2135 if test "$cpu" = host; then
2136     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2137
2138     case "$cc_type" in
2139         gcc|llvm_gcc)
2140             check_native(){
2141                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2142                 sed -n "/cc1.*$1=/{
2143                             s/.*$1=\\([^ ]*\\).*/\\1/
2144                             p
2145                             q
2146                         }" $TMPE
2147             }
2148             cpu=$(check_native -march || check_native -mcpu)
2149         ;;
2150     esac
2151
2152     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2153 fi
2154
2155 # Deal with common $arch aliases
2156 case "$arch" in
2157     arm*)
2158         arch="arm"
2159     ;;
2160     mips|mipsel|IP*)
2161         arch="mips"
2162     ;;
2163     mips64*)
2164         arch="mips"
2165         subarch="mips64"
2166     ;;
2167     parisc|hppa)
2168         arch="parisc"
2169     ;;
2170     parisc64|hppa64)
2171         arch="parisc"
2172         subarch="parisc64"
2173     ;;
2174     "Power Macintosh"|ppc|powerpc)
2175         arch="ppc"
2176     ;;
2177     ppc64|powerpc64)
2178         arch="ppc"
2179         subarch="ppc64"
2180     ;;
2181     s390|s390x)
2182         arch="s390"
2183     ;;
2184     sh4|sh)
2185         arch="sh4"
2186     ;;
2187     sun4u|sparc64)
2188         arch="sparc"
2189         subarch="sparc64"
2190     ;;
2191     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2192         arch="x86"
2193     ;;
2194 esac
2195
2196 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2197 enable $arch
2198
2199 # Add processor-specific flags
2200 if test "$cpu" = generic; then
2201     : do nothing
2202 elif enabled ppc; then
2203
2204     case $(tolower $cpu) in
2205         601|ppc601|powerpc601)
2206             cpuflags="-mcpu=601"
2207             disable altivec
2208         ;;
2209         603*|ppc603*|powerpc603*)
2210             cpuflags="-mcpu=603"
2211             disable altivec
2212         ;;
2213         604*|ppc604*|powerpc604*)
2214             cpuflags="-mcpu=604"
2215             disable altivec
2216         ;;
2217         g3|75*|ppc75*|powerpc75*)
2218             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2219             disable altivec
2220         ;;
2221         g4|745*|ppc745*|powerpc745*)
2222             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2223         ;;
2224         74*|ppc74*|powerpc74*)
2225             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2226         ;;
2227         g5|970|ppc970|powerpc970|power4*)
2228             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2229         ;;
2230         cell)
2231             cpuflags="-mcpu=cell"
2232             enable ldbrx
2233         ;;
2234         e500v2)
2235             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2236             disable altivec
2237         ;;
2238         e500)
2239             cpuflags="-mcpu=8540 -mhard-float"
2240             disable altivec
2241         ;;
2242     esac
2243
2244 elif enabled x86; then
2245
2246     case $cpu in
2247         i[345]86|pentium)
2248             cpuflags="-march=$cpu"
2249             disable mmx
2250         ;;
2251         # targets that do NOT support conditional mov (cmov)
2252         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2253             cpuflags="-march=$cpu"
2254             disable cmov
2255         ;;
2256         # targets that do support conditional mov (cmov)
2257         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2258             cpuflags="-march=$cpu"
2259             enable cmov
2260             enable fast_cmov
2261         ;;
2262         # targets that do support conditional mov but on which it's slow
2263         pentium4|pentium4m|prescott|nocona)
2264             cpuflags="-march=$cpu"
2265             enable cmov
2266             disable fast_cmov
2267         ;;
2268     esac
2269
2270 elif enabled sparc; then
2271
2272     case $cpu in
2273         niagara)
2274             cpuflags="-mcpu=$cpu"
2275             disable vis
2276         ;;
2277         sparc64)
2278             cpuflags="-mcpu=v9"
2279         ;;
2280     esac
2281
2282 elif enabled arm; then
2283
2284     case $cpu in
2285         armv*)
2286             cpuflags="-march=$cpu"
2287             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2288         ;;
2289         *)
2290             cpuflags="-mcpu=$cpu"
2291             case $cpu in
2292                 cortex-a*)                               subarch=armv7a  ;;
2293                 cortex-r*)                               subarch=armv7r  ;;
2294                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2295                 arm11*)                                  subarch=armv6   ;;
2296                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2297                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2298             esac
2299         ;;
2300     esac
2301
2302 elif enabled alpha; then
2303
2304     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2305
2306 elif enabled bfin; then
2307
2308     cpuflags="-mcpu=$cpu"
2309
2310 elif enabled mips; then
2311
2312     cpuflags="-march=$cpu"
2313
2314 elif enabled avr32; then
2315
2316     case $cpu in
2317         ap7[02]0[0-2])
2318             subarch="avr32_ap"
2319             cpuflags="-mpart=$cpu"
2320         ;;
2321         ap)
2322             subarch="avr32_ap"
2323             cpuflags="-march=$cpu"
2324         ;;
2325         uc3[ab]*)
2326             subarch="avr32_uc"
2327             cpuflags="-mcpu=$cpu"
2328         ;;
2329         uc)
2330             subarch="avr32_uc"
2331             cpuflags="-march=$cpu"
2332         ;;
2333     esac
2334
2335 fi
2336
2337 add_cflags $cpuflags
2338 add_asflags $cpuflags
2339
2340 # compiler sanity check
2341 check_exec <<EOF
2342 int main(void){ return 0; }
2343 EOF
2344 if test "$?" != 0; then
2345     echo "$cc is unable to create an executable file."
2346     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2347         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2348         echo "Only do this if you know what cross compiling means."
2349     fi
2350     die "C compiler test failed."
2351 fi
2352
2353 add_cppflags -D_ISOC99_SOURCE
2354 check_cflags -std=c99
2355 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2356 #include <stdlib.h>
2357 EOF
2358 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2359 #include <stdlib.h>
2360 EOF
2361
2362 check_host_cflags -std=c99
2363 check_host_cflags -Wall
2364
2365 case "$arch" in
2366     alpha|ia64|mips|parisc|sparc)
2367         spic=$shared
2368     ;;
2369     x86)
2370         subarch="x86_32"
2371         check_cc <<EOF && subarch="x86_64"
2372         int test[(int)sizeof(char*) - 7];
2373 EOF
2374         if test "$subarch" = "x86_64"; then
2375             spic=$shared
2376         fi
2377     ;;
2378 esac
2379
2380 enable $subarch
2381 enabled spic && enable pic
2382
2383 # OS specific
2384 case $target_os in
2385     haiku)
2386         prefix_default="/boot/common"
2387         network_extralibs="-lnetwork"
2388         host_libs=
2389         ;;
2390     sunos)
2391         AVSERVERLDFLAGS=""
2392         SHFLAGS='-shared -Wl,-h,$$(@F)'
2393         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2394         network_extralibs="-lsocket -lnsl"
2395         add_cppflags -D__EXTENSIONS__
2396         # When using suncc to build, the Solaris linker will mark
2397         # an executable with each instruction set encountered by
2398         # the Solaris assembler.  As our libraries contain their own
2399         # guards for processor-specific code, instead suppress
2400         # generation of the HWCAPS ELF section on Solaris x86 only.
2401         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2402         nm_opts='-P -g'
2403         ;;
2404     netbsd)
2405         disable symver
2406         oss_indev_extralibs="-lossaudio"
2407         oss_outdev_extralibs="-lossaudio"
2408         ;;
2409     openbsd)
2410         enable malloc_aligned
2411         # On OpenBSD 4.5. the compiler does not use PIC unless
2412         # explicitly using -fPIC. Libav builds fine without PIC,
2413         # however the generated executable will not do anything
2414         # (simply quits with exit-code 1, no crash, no output).
2415         # Thus explicitly enable PIC here.
2416         enable pic
2417         disable symver
2418         SHFLAGS='-shared'
2419         oss_indev_extralibs="-lossaudio"
2420         oss_outdev_extralibs="-lossaudio"
2421         ;;
2422     dragonfly)
2423         enable malloc_aligned
2424         disable symver
2425         ;;
2426     freebsd)
2427         enable malloc_aligned
2428         ;;
2429     bsd/os)
2430         add_extralibs -lpoll -lgnugetopt
2431         ;;
2432     darwin)
2433         enable malloc_aligned
2434         gas="gas-preprocessor.pl $cc"
2435         enabled ppc && add_asflags -force_cpusubtype_ALL
2436         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2437         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2438         add_ldflags -Wl,-dynamic,-search_paths_first
2439         SLIBSUF=".dylib"
2440         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2441         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2442         AVSERVERLDFLAGS=-Wl,-bind_at_load
2443         objformat="macho"
2444         enabled x86_64 && objformat="macho64"
2445         enabled_any pic shared ||
2446             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2447         ;;
2448     mingw32*)
2449         if test $target_os = "mingw32ce"; then
2450             disable network
2451         else
2452             target_os=mingw32
2453         fi
2454         LIBTARGET=i386
2455         if enabled x86_64; then
2456             enable malloc_aligned
2457             LIBTARGET="i386:x86-64"
2458         elif enabled arm; then
2459             LIBTARGET=arm-wince
2460         fi
2461         shlibdir_default="$bindir_default"
2462         SLIBPREF=""
2463         SLIBSUF=".dll"
2464         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2465         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2466         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2467         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2468         SLIB_INSTALL_LINKS=
2469         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2470         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2471         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'
2472         objformat="win32"
2473         dlltool="${cross_prefix}dlltool"
2474         enable dos_paths
2475         check_cflags -fno-common
2476         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2477                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2478                 die "ERROR: MinGW runtime version must be >= 3.15."
2479         add_cppflags -U__STRICT_ANSI__
2480         ;;
2481     cygwin*)
2482         target_os=cygwin
2483         shlibdir_default="$bindir_default"
2484         SLIBPREF="cyg"
2485         SLIBSUF=".dll"
2486         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2487         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2488         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2489         objformat="win32"
2490         enable dos_paths
2491         check_cflags -fno-common
2492         add_cppflags -U__STRICT_ANSI__
2493         ;;
2494     *-dos|freedos|opendos)
2495         network_extralibs="-lsocket"
2496         objformat="coff"
2497         enable dos_paths
2498         add_cppflags -U__STRICT_ANSI__
2499         ;;
2500     linux)
2501         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2502         enable dv1394
2503         ;;
2504     irix*)
2505         target_os=irix
2506         ranlib="echo ignoring ranlib"
2507         ;;
2508     os/2*)
2509         ln_s="cp -f"
2510         objformat="aout"
2511         add_cppflags -D_GNU_SOURCE
2512         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2513         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2514         AVSERVERLDFLAGS=""
2515         LIBSUF="_s.a"
2516         SLIBPREF=""
2517         SLIBSUF=".dll"
2518         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2519         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2520         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2521           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2522           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2523           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2524           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2525           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2526         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2527           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2528         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2529         enable dos_paths
2530         ;;
2531     gnu/kfreebsd)
2532         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2533         ;;
2534     gnu)
2535         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2536         ;;
2537     qnx)
2538         add_cppflags -D_QNX_SOURCE
2539         network_extralibs="-lsocket"
2540         ;;
2541     symbian)
2542         SLIBSUF=".dll"
2543         enable dos_paths
2544         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2545         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2546         add_ldflags -Wl,--target1-abs,--no-undefined \
2547                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2548                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2549         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2550                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2551                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2552         ;;
2553     none)
2554         ;;
2555     *)
2556         die "Unknown OS '$target_os'."
2557         ;;
2558 esac
2559
2560 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2561
2562 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2563
2564 set_default $PATHS_LIST
2565
2566 # we need to build at least one lib type
2567 if ! enabled_any static shared; then
2568     cat <<EOF
2569 At least one library type must be built.
2570 Specify --enable-static to build the static libraries or --enable-shared to
2571 build the shared libraries as well. To only build the shared libraries specify
2572 --disable-static in addition to --enable-shared.
2573 EOF
2574     exit 1;
2575 fi
2576
2577 die_license_disabled() {
2578     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2579 }
2580
2581 die_license_disabled gpl libcdio
2582 die_license_disabled gpl libx264
2583 die_license_disabled gpl libxavs
2584 die_license_disabled gpl libxvid
2585 die_license_disabled gpl x11grab
2586
2587 die_license_disabled nonfree libfaac
2588 die_license_disabled nonfree openssl
2589
2590 die_license_disabled version3 libopencore_amrnb
2591 die_license_disabled version3 libopencore_amrwb
2592 die_license_disabled version3 libvo_aacenc
2593 die_license_disabled version3 libvo_amrwbenc
2594
2595 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2596
2597 disabled optimizations || check_cflags -fomit-frame-pointer
2598
2599 enable_pic() {
2600     enable pic
2601     add_cppflags -DPIC
2602     add_cflags   -fPIC
2603     add_asflags  -fPIC
2604 }
2605
2606 enabled pic && enable_pic
2607
2608 check_cc <<EOF || die "Symbol mangling check failed."
2609 int ff_extern;
2610 EOF
2611 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2612 extern_prefix=${sym%%ff_extern*}
2613
2614 check_cc <<EOF && enable inline_asm
2615 void foo(void) { __asm__ volatile ("" ::); }
2616 EOF
2617
2618 _restrict=
2619 for restrict_keyword in restrict __restrict__ __restrict; do
2620     check_cc <<EOF && _restrict=$restrict_keyword && break
2621 void foo(char * $restrict_keyword p);
2622 EOF
2623 done
2624
2625 check_cc <<EOF && enable attribute_packed
2626 struct { int x; } __attribute__((packed)) x;
2627 EOF
2628
2629 check_cc <<EOF && enable attribute_may_alias
2630 union { int x; } __attribute__((may_alias)) x;
2631 EOF
2632
2633 check_cc <<EOF || die "endian test failed"
2634 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2635 EOF
2636 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2637
2638 if enabled alpha; then
2639
2640     check_cflags -mieee
2641
2642 elif enabled arm; then
2643
2644     enabled thumb && check_cflags -mthumb || check_cflags -marm
2645     nogas=die
2646
2647     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2648         enable vfp_args
2649     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2650         case "${cross_prefix:-$cc}" in
2651             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2652             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2653 __asm__ (".eabi_attribute 28, 1");
2654 int main(void) { return 0; }
2655 EOF
2656         esac
2657         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2658     fi
2659
2660     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2661     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2662     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2663     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2664     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2665     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2666     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2667
2668     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2669
2670     enabled_all armv6t2 shared !pic && enable_pic
2671
2672 elif enabled mips; then
2673
2674     check_asm loongson '"dmult.g $1, $2, $3"'
2675     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2676
2677 elif enabled ppc; then
2678
2679     enable local_aligned_8 local_aligned_16
2680
2681     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2682     check_asm ibm_asm   '"add 0, 0, 0"'
2683     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2684     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2685
2686     # AltiVec flags: The FSF version of GCC differs from the Apple version
2687     if enabled altivec; then
2688         nogas=warn
2689         check_cflags -maltivec -mabi=altivec &&
2690         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2691         check_cflags -faltivec
2692
2693         # check if our compiler supports Motorola AltiVec C API
2694         check_cc <<EOF || disable altivec
2695 $inc_altivec_h
2696 int main(void) {
2697     vector signed int v1, v2, v3;
2698     v1 = vec_add(v2,v3);
2699     return 0;
2700 }
2701 EOF
2702
2703         # check if our compiler supports braces for vector declarations
2704         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2705 $inc_altivec_h
2706 int main (void) { (vector int) {1}; return 0; }
2707 EOF
2708     fi
2709
2710 elif enabled sparc; then
2711
2712     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2713         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2714
2715 elif enabled x86; then
2716
2717     enable local_aligned_8 local_aligned_16
2718
2719     # check whether EBP is available on x86
2720     # As 'i' is stored on the stack, this program will crash
2721     # if the base pointer is used to access it because the
2722     # base pointer is cleared in the inline assembly code.
2723     check_exec_crash <<EOF && enable ebp_available
2724     volatile int i=0;
2725     __asm__ volatile (
2726         "xorl %%ebp, %%ebp"
2727     ::: "%ebp");
2728     return i;
2729 EOF
2730
2731     # check whether EBX is available on x86
2732     check_asm ebx_available '""::"b"(0)' &&
2733         check_asm ebx_available '"":::"%ebx"'
2734
2735     # check whether xmm clobbers are supported
2736     check_asm xmm_clobbers '"":::"%xmm0"'
2737
2738     # check whether binutils is new enough to compile SSSE3/MMX2
2739     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2740     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2741
2742     check_asm bswap '"bswap %%eax" ::: "%eax"'
2743
2744     if ! disabled_any asm mmx yasm; then
2745         if check_cmd $yasmexe --version; then
2746             enabled x86_64 && yasm_extra="-m amd64"
2747             yasm_debug="-g dwarf2"
2748         elif check_cmd nasm -v; then
2749             yasmexe=nasm
2750             yasm_debug="-g -F dwarf"
2751             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2752         fi
2753
2754         YASMFLAGS="-f $objformat $yasm_extra"
2755         enabled pic               && append YASMFLAGS "-DPIC"
2756         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2757         case "$objformat" in
2758             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2759         esac
2760
2761         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2762             die "yasm not found, use --disable-yasm for a crippled build"
2763         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2764     fi
2765
2766     case "$cpu" in
2767         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2768             disable fast_clz
2769         ;;
2770     esac
2771
2772 fi
2773
2774 if enabled asm; then
2775     as=${gas:=$as}
2776     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2777         $nogas "GNU assembler not found, install gas-preprocessor"
2778 fi
2779
2780 check_ldflags -Wl,--as-needed
2781
2782 if check_func dlopen; then
2783     ldl=
2784 elif check_func dlopen -ldl; then
2785     ldl=-ldl
2786 fi
2787
2788 if enabled network; then
2789     check_type "sys/types.h sys/socket.h" socklen_t
2790     check_type netdb.h "struct addrinfo"
2791     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2792     check_type netinet/in.h "struct sockaddr_in6"
2793     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2794     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2795     # Prefer arpa/inet.h over winsock2
2796     if check_header arpa/inet.h ; then
2797         check_func closesocket
2798     elif check_header winsock2.h ; then
2799         check_func_headers winsock2.h closesocket -lws2 && \
2800             network_extralibs="-lws2" || \
2801         { check_func_headers winsock2.h closesocket -lws2_32 && \
2802             network_extralibs="-lws2_32"; }
2803         check_type ws2tcpip.h socklen_t
2804         check_type ws2tcpip.h "struct addrinfo"
2805         check_type ws2tcpip.h "struct ipv6_mreq"
2806         check_type ws2tcpip.h "struct sockaddr_in6"
2807         check_type ws2tcpip.h "struct sockaddr_storage"
2808         check_struct winsock2.h "struct sockaddr" sa_len
2809     else
2810         disable network
2811     fi
2812 fi
2813
2814 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2815 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2816
2817 check_func  fcntl
2818 check_func  fork
2819 check_func  getaddrinfo $network_extralibs
2820 check_func  gethrtime
2821 check_func  getrusage
2822 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2823 check_func  inet_aton $network_extralibs
2824 check_func  isatty
2825 check_func  localtime_r
2826 check_func  ${malloc_prefix}memalign            && enable memalign
2827 check_func  mkstemp
2828 check_func  mmap
2829 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2830 check_func  setrlimit
2831 check_func  strerror_r
2832 check_func  strptime
2833 check_func  strtok_r
2834 check_func_headers io.h setmode
2835 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2836 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2837 check_func_headers windows.h GetProcessTimes
2838 check_func_headers windows.h MapViewOfFile
2839 check_func_headers windows.h VirtualAlloc
2840
2841 check_header dlfcn.h
2842 check_header dxva2api.h
2843 check_header malloc.h
2844 check_header poll.h
2845 check_header sys/mman.h
2846 check_header sys/resource.h
2847 check_header sys/select.h
2848 check_header vdpau/vdpau.h
2849 check_header vdpau/vdpau_x11.h
2850 check_header X11/extensions/XvMClib.h
2851
2852 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2853
2854 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2855 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2856
2857 if ! disabled w32threads && ! enabled pthreads; then
2858     check_func _beginthreadex && enable w32threads
2859 fi
2860
2861 # check for some common methods of building with pthread support
2862 # do this before the optional library checks as some of them require pthreads
2863 if ! disabled pthreads && ! enabled w32threads; then
2864     enable pthreads
2865     if check_func pthread_create; then
2866         :
2867     elif check_func pthread_create -pthread; then
2868         add_cflags -pthread
2869         add_extralibs -pthread
2870     elif check_func pthread_create -pthreads; then
2871         add_cflags -pthreads
2872         add_extralibs -pthreads
2873     elif check_func pthread_create -lpthreadGC2; then
2874         add_extralibs -lpthreadGC2
2875     elif ! check_lib pthread.h pthread_create -lpthread; then
2876         disable pthreads
2877     fi
2878 fi
2879
2880 for thread in $THREADS_LIST; do
2881     if enabled $thread; then
2882         test -n "$thread_type" &&
2883             die "ERROR: Only one thread type must be selected." ||
2884             thread_type="$thread"
2885     fi
2886 done
2887
2888 check_lib math.h sin -lm && LIBM="-lm"
2889 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2890
2891 check_mathfunc exp2
2892 check_mathfunc exp2f
2893 check_mathfunc llrint
2894 check_mathfunc llrintf
2895 check_mathfunc log2
2896 check_mathfunc log2f
2897 check_mathfunc lrint
2898 check_mathfunc lrintf
2899 check_mathfunc round
2900 check_mathfunc roundf
2901 check_mathfunc trunc
2902 check_mathfunc truncf
2903
2904 # these are off by default, so fail if requested and not available
2905 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2906 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2907 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2908 enabled libdirac   && require_pkg_config dirac                          \
2909     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2910     "dirac_decoder_init dirac_encoder_init"
2911 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2912 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2913 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2914 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2915 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2916 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2917 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2918 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2919 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2920 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2921 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2922 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2923 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2924 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2925 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2926 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2927 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2928 enabled libvpx     && {
2929     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2930                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2931     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2932                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2933 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2934                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2935                         die "ERROR: libx264 version must be >= 0.118."; }
2936 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2937 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2938 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2939 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2940                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2941                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2942                         die "ERROR: openssl not found"; }
2943
2944 # libdc1394 check
2945 if enabled libdc1394; then
2946     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2947         enable libdc1394_2; } ||
2948     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2949         enable libdc1394_1; } ||
2950     die "ERROR: No version of libdc1394 found "
2951 fi
2952
2953 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2954     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2955     enable sdl &&
2956     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2957 fi
2958
2959 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2960
2961 check_header linux/fb.h
2962 check_header linux/videodev.h
2963 check_header linux/videodev2.h
2964 check_header sys/videoio.h
2965
2966 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2967 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2968 # w32api 3.12 had it defined wrong
2969 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2970
2971 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2972 { check_header dev/bktr/ioctl_meteor.h &&
2973   check_header dev/bktr/ioctl_bt848.h; } ||
2974 { check_header machine/ioctl_meteor.h &&
2975   check_header machine/ioctl_bt848.h; } ||
2976 { check_header dev/video/meteor/ioctl_meteor.h &&
2977   check_header dev/video/bktr/ioctl_bt848.h; } ||
2978 check_header dev/ic/bt8xx.h
2979
2980 check_header sndio.h
2981 check_header sys/soundcard.h
2982 check_header soundcard.h
2983
2984 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2985
2986 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2987
2988 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2989
2990 enabled libcdio &&
2991     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2992
2993 enabled x11grab                         &&
2994 check_header X11/Xlib.h                 &&
2995 check_header X11/extensions/XShm.h      &&
2996 check_header X11/extensions/Xfixes.h    &&
2997 check_func XOpenDisplay -lX11           &&
2998 check_func XShmCreateImage -lX11 -lXext &&
2999 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3000
3001 # check for VDA header
3002 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3003     enable vda && add_ldflags -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3004 fi
3005
3006 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3007 check_cpp_condition \
3008     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3009     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3010       disable vdpau; }
3011 fi
3012
3013 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3014
3015 # add some useful compiler flags if supported
3016 check_cflags -Wdeclaration-after-statement
3017 check_cflags -Wall
3018 check_cflags -Wno-parentheses
3019 check_cflags -Wno-switch
3020 check_cflags -Wno-format-zero-length
3021 check_cflags -Wdisabled-optimization
3022 check_cflags -Wpointer-arith
3023 check_cflags -Wredundant-decls
3024 check_cflags -Wno-pointer-sign
3025 check_cflags -Wcast-qual
3026 check_cflags -Wwrite-strings
3027 check_cflags -Wtype-limits
3028 check_cflags -Wundef
3029 check_cflags -Wmissing-prototypes
3030 check_cflags -Wstrict-prototypes
3031 enabled extra_warnings && check_cflags -Winline
3032
3033 # add some linker flags
3034 check_ldflags -Wl,--warn-common
3035 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3036 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3037
3038 echo "X{};" > $TMPV
3039 if test_ldflags -Wl,--version-script,$TMPV; then
3040     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3041     check_cc <<EOF && enable symver_asm_label
3042 void ff_foo(void) __asm__ ("av_foo@VERSION");
3043 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3044 EOF
3045     check_cc <<EOF && enable symver_gnu_asm
3046 __asm__(".symver ff_foo,av_foo@VERSION");
3047 void ff_foo(void) {}
3048 EOF
3049 fi
3050
3051 if [ -n "$optflags" ]; then
3052     add_cflags $optflags
3053 elif enabled small; then
3054     add_cflags $size_cflags
3055 elif enabled optimizations; then
3056     add_cflags $speed_cflags
3057 else
3058     add_cflags $noopt_cflags
3059 fi
3060 check_cflags -fno-math-errno
3061 check_cflags -fno-signed-zeros
3062
3063 if enabled icc; then
3064     # Just warnings, no remarks
3065     check_cflags -w1
3066     # -wd: Disable following warnings
3067     # 144, 167, 556: -Wno-pointer-sign
3068     # 1292: attribute "foo" ignored
3069     # 10006: ignoring unknown option -fno-signed-zeros
3070     # 10148: ignoring unknown option -Wno-parentheses
3071     # 10156: ignoring option '-W'; no argument required
3072     check_cflags -wd144,167,556,1292,10006,10148,10156
3073     # 11030: Warning unknown option --as-needed
3074     # 10156: ignoring option '-export'; no argument required
3075     check_ldflags -wd10156,11030
3076     # Allow to compile with optimizations
3077     check_ldflags -march=$cpu
3078     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3079     enable ebp_available
3080     if enabled x86_32; then
3081         test ${icc_version%%.*} -ge 11 && \
3082             check_cflags -falign-stack=maintain-16-byte || \
3083             disable aligned_stack
3084     fi
3085 elif enabled ccc; then
3086     # disable some annoying warnings
3087     add_cflags -msg_disable cvtu32to64
3088     add_cflags -msg_disable embedcomment
3089     add_cflags -msg_disable needconstext
3090     add_cflags -msg_disable nomainieee
3091     add_cflags -msg_disable ptrmismatch1
3092     add_cflags -msg_disable unreachcode
3093 elif enabled gcc; then
3094     check_cflags -fno-tree-vectorize
3095     check_cflags -Werror=implicit-function-declaration
3096     check_cflags -Werror=missing-prototypes
3097 elif enabled llvm_gcc; then
3098     check_cflags -mllvm -stack-alignment=16
3099 elif enabled clang; then
3100     check_cflags -mllvm -stack-alignment=16
3101     check_cflags -Qunused-arguments
3102 elif enabled armcc; then
3103     # 2523: use of inline assembler is deprecated
3104     add_cflags -W${armcc_opt},--diag_suppress=2523
3105     add_cflags -W${armcc_opt},--diag_suppress=1207
3106     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3107     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3108     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3109     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3110 elif enabled tms470; then
3111     add_cflags -pds=824 -pds=837
3112 elif enabled pathscale; then
3113     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3114 fi
3115
3116 enabled_any $THREADS_LIST      && enable threads
3117
3118 check_deps $CONFIG_LIST       \
3119            $CONFIG_EXTRA      \
3120            $HAVE_LIST         \
3121            $DECODER_LIST      \
3122            $ENCODER_LIST      \
3123            $HWACCEL_LIST      \
3124            $PARSER_LIST       \
3125            $BSF_LIST          \
3126            $DEMUXER_LIST      \
3127            $MUXER_LIST        \
3128            $FILTER_LIST       \
3129            $INDEV_LIST        \
3130            $OUTDEV_LIST       \
3131            $PROTOCOL_LIST     \
3132            $ACODEC_TESTS      \
3133            $VCODEC_TESTS      \
3134            $LAVF_TESTS        \
3135            $LAVFI_TESTS       \
3136            $SEEK_TESTS        \
3137
3138 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3139
3140 ! enabled_any memalign posix_memalign malloc_aligned &&
3141     enabled_any $need_memalign && enable memalign_hack
3142
3143 echo "install prefix            $prefix"
3144 echo "source path               $source_path"
3145 echo "C compiler                $cc"
3146 echo "ARCH                      $arch ($cpu)"
3147 if test "$build_suffix" != ""; then
3148     echo "build suffix              $build_suffix"
3149 fi
3150 if test "$extra_version" != ""; then
3151     echo "version string suffix     $extra_version"
3152 fi
3153 echo "big-endian                ${bigendian-no}"
3154 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3155 if enabled x86; then
3156     echo "${yasmexe}                      ${yasm-no}"
3157     echo "MMX enabled               ${mmx-no}"
3158     echo "MMX2 enabled              ${mmx2-no}"
3159     echo "3DNow! enabled            ${amd3dnow-no}"
3160     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3161     echo "SSE enabled               ${sse-no}"
3162     echo "SSSE3 enabled             ${ssse3-no}"
3163     echo "AVX enabled               ${avx-no}"
3164     echo "CMOV enabled              ${cmov-no}"
3165     echo "CMOV is fast              ${fast_cmov-no}"
3166     echo "EBX available             ${ebx_available-no}"
3167     echo "EBP available             ${ebp_available-no}"
3168 fi
3169 if enabled arm; then
3170     echo "ARMv5TE enabled           ${armv5te-no}"
3171     echo "ARMv6 enabled             ${armv6-no}"
3172     echo "ARMv6T2 enabled           ${armv6t2-no}"
3173     echo "ARM VFP enabled           ${armvfp-no}"
3174     echo "IWMMXT enabled            ${iwmmxt-no}"
3175     echo "NEON enabled              ${neon-no}"
3176 fi
3177 if enabled mips; then
3178     echo "MMI enabled               ${mmi-no}"
3179 fi
3180 if enabled ppc; then
3181     echo "AltiVec enabled           ${altivec-no}"
3182     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3183     echo "dcbzl available           ${dcbzl-no}"
3184 fi
3185 if enabled sparc; then
3186     echo "VIS enabled               ${vis-no}"
3187 fi
3188 echo "debug symbols             ${debug-no}"
3189 echo "optimize for size         ${small-no}"
3190 echo "optimizations             ${optimizations-no}"
3191 echo "static                    ${static-no}"
3192 echo "shared                    ${shared-no}"
3193 echo "postprocessing support    ${postproc-no}"
3194 echo "new filter support        ${avfilter-no}"
3195 echo "network support           ${network-no}"
3196 echo "threading support         ${thread_type-no}"
3197 echo "SDL support               ${sdl-no}"
3198 echo "Sun medialib support      ${mlib-no}"
3199 echo "libdxva2 enabled          ${dxva2-no}"
3200 echo "libva enabled             ${vaapi-no}"
3201 echo "libvdpau enabled          ${vdpau-no}"
3202 echo "AVISynth enabled          ${avisynth-no}"
3203 echo "frei0r enabled            ${frei0r-no}"
3204 echo "gnutls enabled            ${gnutls-no}"
3205 echo "libcdio support           ${libcdio-no}"
3206 echo "libdc1394 support         ${libdc1394-no}"
3207 echo "libdirac enabled          ${libdirac-no}"
3208 echo "libfaac enabled           ${libfaac-no}"
3209 echo "libgsm enabled            ${libgsm-no}"
3210 echo "libmp3lame enabled        ${libmp3lame-no}"
3211 echo "libnut enabled            ${libnut-no}"
3212 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3213 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3214 echo "libopencv support         ${libopencv-no}"
3215 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3216 echo "libpulse enabled          ${libpulse-no}"
3217 echo "librtmp enabled           ${librtmp-no}"
3218 echo "libschroedinger enabled   ${libschroedinger-no}"
3219 echo "libspeex enabled          ${libspeex-no}"
3220 echo "libtheora enabled         ${libtheora-no}"
3221 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3222 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3223 echo "libvorbis enabled         ${libvorbis-no}"
3224 echo "libvpx enabled            ${libvpx-no}"
3225 echo "libx264 enabled           ${libx264-no}"
3226 echo "libxavs enabled           ${libxavs-no}"
3227 echo "libxvid enabled           ${libxvid-no}"
3228 echo "openssl enabled           ${openssl-no}"
3229 echo "zlib enabled              ${zlib-no}"
3230 echo "bzlib enabled             ${bzlib-no}"
3231 echo
3232
3233 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3234     echo "Enabled ${type}s:"
3235     eval list=\$$(toupper $type)_LIST
3236     print_enabled '_*' $list | sort | pr -r -3 -t
3237     echo
3238 done
3239
3240 license="LGPL version 2.1 or later"
3241 if enabled nonfree; then
3242     license="nonfree and unredistributable"
3243 elif enabled gplv3; then
3244     license="GPL version 3 or later"
3245 elif enabled lgplv3; then
3246     license="LGPL version 3 or later"
3247 elif enabled gpl; then
3248     license="GPL version 2 or later"
3249 fi
3250
3251 echo "License: $license"
3252
3253 echo "Creating config.mak and config.h..."
3254
3255 test -e Makefile || $ln_s "$source_path/Makefile" .
3256
3257 config_files="$TMPH config.mak"
3258
3259 cat > config.mak <<EOF
3260 # Automatically generated by configure - do not modify!
3261 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3262 prefix=$prefix
3263 LIBDIR=\$(DESTDIR)$libdir
3264 SHLIBDIR=\$(DESTDIR)$shlibdir
3265 INCDIR=\$(DESTDIR)$incdir
3266 BINDIR=\$(DESTDIR)$bindir
3267 DATADIR=\$(DESTDIR)$datadir
3268 MANDIR=\$(DESTDIR)$mandir
3269 SRC_PATH=$source_path
3270 CC_IDENT=$cc_ident
3271 ARCH=$arch
3272 CC=$cc
3273 AS=$as
3274 LD=$ld
3275 DEPCC=$dep_cc
3276 YASM=$yasmexe
3277 YASMDEP=$yasmexe
3278 AR=$ar
3279 RANLIB=$ranlib
3280 LN_S=$ln_s
3281 CPPFLAGS=$CPPFLAGS
3282 CFLAGS=$CFLAGS
3283 ASFLAGS=$ASFLAGS
3284 AS_O=$CC_O
3285 CC_O=$CC_O
3286 DLLTOOL=$dlltool
3287 LDFLAGS=$LDFLAGS
3288 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3289 SHFLAGS=$SHFLAGS
3290 YASMFLAGS=$YASMFLAGS
3291 BUILDSUF=$build_suffix
3292 FULLNAME=$FULLNAME
3293 LIBPREF=$LIBPREF
3294 LIBSUF=$LIBSUF
3295 LIBNAME=$LIBNAME
3296 SLIBPREF=$SLIBPREF
3297 SLIBSUF=$SLIBSUF
3298 EXESUF=$EXESUF
3299 EXTRA_VERSION=$extra_version
3300 DEPFLAGS=$DEPFLAGS
3301 CCDEP=$CCDEP
3302 ASDEP=$ASDEP
3303 CC_DEPFLAGS=$CC_DEPFLAGS
3304 AS_DEPFLAGS=$AS_DEPFLAGS
3305 HOSTCC=$host_cc
3306 HOSTCFLAGS=$host_cflags
3307 HOSTEXESUF=$HOSTEXESUF
3308 HOSTLDFLAGS=$host_ldflags
3309 HOSTLIBS=$host_libs
3310 TARGET_EXEC=$target_exec
3311 TARGET_PATH=$target_path
3312 SDL_LIBS=$sdl_libs
3313 SDL_CFLAGS=$sdl_cflags
3314 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3315 EXTRALIBS=$extralibs
3316 INSTALL=install
3317 LIBTARGET=${LIBTARGET}
3318 SLIBNAME=${SLIBNAME}
3319 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3320 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3321 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3322 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3323 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3324 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3325 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3326 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3327 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3328 EOF
3329
3330 get_version(){
3331     name=$1
3332     file=$source_path/$2
3333     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3334     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3335     lcname=$(tolower $name)
3336     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3337     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3338 }
3339
3340 get_version LIBSWSCALE  libswscale/swscale.h
3341 get_version LIBPOSTPROC libpostproc/postprocess.h
3342 get_version LIBAVCODEC  libavcodec/version.h
3343 get_version LIBAVDEVICE libavdevice/avdevice.h
3344 get_version LIBAVFORMAT libavformat/version.h
3345 get_version LIBAVUTIL   libavutil/avutil.h
3346 get_version LIBAVFILTER libavfilter/avfilter.h
3347
3348 cat > $TMPH <<EOF
3349 /* Automatically generated by configure - do not modify! */
3350 #ifndef LIBAV_CONFIG_H
3351 #define LIBAV_CONFIG_H
3352 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3353 #define LIBAV_LICENSE "$(c_escape $license)"
3354 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3355 #define CC_TYPE "$cc_type"
3356 #define CC_VERSION $cc_version
3357 #define restrict $_restrict
3358 #define EXTERN_PREFIX "${extern_prefix}"
3359 #define EXTERN_ASM ${extern_prefix}
3360 #define SLIBSUF "$SLIBSUF"
3361 EOF
3362
3363 test -n "$malloc_prefix" &&
3364     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3365
3366 if enabled small || disabled optimizations; then
3367     echo "#undef  av_always_inline"  >> $TMPH
3368     if enabled small; then
3369         echo "#define av_always_inline inline"  >> $TMPH
3370     else
3371         echo "#define av_always_inline av_unused"  >> $TMPH
3372     fi
3373 fi
3374
3375 if enabled yasm; then
3376     append config_files $TMPASM
3377     printf '' >$TMPASM
3378 fi
3379
3380 print_config ARCH_   "$config_files" $ARCH_LIST
3381 print_config HAVE_   "$config_files" $HAVE_LIST
3382 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3383                                      $CONFIG_EXTRA      \
3384                                      $DECODER_LIST      \
3385                                      $ENCODER_LIST      \
3386                                      $HWACCEL_LIST      \
3387                                      $PARSER_LIST       \
3388                                      $BSF_LIST          \
3389                                      $DEMUXER_LIST      \
3390                                      $MUXER_LIST        \
3391                                      $FILTER_LIST       \
3392                                      $PROTOCOL_LIST     \
3393                                      $INDEV_LIST        \
3394                                      $OUTDEV_LIST       \
3395
3396 cat >>config.mak <<EOF
3397 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3398 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3399 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3400 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3401 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3402 EOF
3403
3404 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3405
3406 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3407 cp_if_changed $TMPH config.h
3408 touch .config
3409
3410 enabled yasm && cp_if_changed $TMPASM config.asm
3411
3412 cat > $TMPH <<EOF
3413 /* Generated by ffconf */
3414 #ifndef AVUTIL_AVCONFIG_H
3415 #define AVUTIL_AVCONFIG_H
3416 EOF
3417
3418 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3419
3420 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3421
3422 cp_if_changed $TMPH libavutil/avconfig.h
3423
3424 test -n "$WARNINGS" && printf "\n$WARNINGS"
3425
3426 # build pkg-config files
3427
3428 pkgconfig_generate(){
3429 name=$1
3430 shortname=${name#lib}${build_suffix}
3431 comment=$2
3432 version=$3
3433 libs=$4
3434 requires=$5
3435 enabled ${name#lib} || return 0
3436 mkdir -p $name
3437 cat <<EOF > $name/$name.pc
3438 prefix=$prefix
3439 exec_prefix=\${prefix}
3440 libdir=$libdir
3441 includedir=$incdir
3442
3443 Name: $name
3444 Description: $comment
3445 Version: $version
3446 Requires: $(enabled shared || echo $requires)
3447 Requires.private: $(enabled shared && echo $requires)
3448 Conflicts:
3449 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3450 Libs.private: $(enabled shared && echo $libs)
3451 Cflags: -I\${includedir}
3452 EOF
3453 cat <<EOF > $name/$name-uninstalled.pc
3454 prefix=
3455 exec_prefix=
3456 libdir=\${pcfiledir}
3457 includedir=${source_path}
3458
3459 Name: $name
3460 Description: $comment
3461 Version: $version
3462 Requires: $requires
3463 Conflicts:
3464 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3465 Cflags: -I\${includedir}
3466 EOF
3467 }
3468
3469 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3470 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3471 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3472 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3473 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3474 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3475 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"