configure: do not manually enable protocols
[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     closesocket
1057     cmov
1058     dcbzl
1059     dev_bktr_ioctl_bt848_h
1060     dev_bktr_ioctl_meteor_h
1061     dev_ic_bt8xx_h
1062     dev_video_meteor_ioctl_meteor_h
1063     dev_video_bktr_ioctl_bt848_h
1064     dlfcn_h
1065     dlopen
1066     dos_paths
1067     ebp_available
1068     ebx_available
1069     exp2
1070     exp2f
1071     fast_64bit
1072     fast_clz
1073     fast_cmov
1074     fcntl
1075     fork
1076     getaddrinfo
1077     gethrtime
1078     GetProcessMemoryInfo
1079     GetProcessTimes
1080     getrusage
1081     gnu_as
1082     struct_rusage_ru_maxrss
1083     ibm_asm
1084     inet_aton
1085     inline_asm
1086     isatty
1087     ldbrx
1088     libdc1394_1
1089     libdc1394_2
1090     llrint
1091     llrintf
1092     local_aligned_16
1093     local_aligned_8
1094     localtime_r
1095     log2
1096     log2f
1097     loongson
1098     lrint
1099     lrintf
1100     lzo1x_999_compress
1101     machine_ioctl_bt848_h
1102     machine_ioctl_meteor_h
1103     malloc_h
1104     MapViewOfFile
1105     memalign
1106     mkstemp
1107     mmap
1108     posix_memalign
1109     round
1110     roundf
1111     sdl
1112     sdl_video_size
1113     setmode
1114     sndio_h
1115     socklen_t
1116     soundcard_h
1117     poll_h
1118     setrlimit
1119     strerror_r
1120     strptime
1121     strtok_r
1122     struct_addrinfo
1123     struct_ipv6_mreq
1124     struct_sockaddr_in6
1125     struct_sockaddr_sa_len
1126     struct_sockaddr_storage
1127     symver
1128     symver_gnu_asm
1129     symver_asm_label
1130     sys_mman_h
1131     sys_resource_h
1132     sys_select_h
1133     sys_soundcard_h
1134     sys_videoio_h
1135     threads
1136     trunc
1137     truncf
1138     vfp_args
1139     VirtualAlloc
1140     winsock2_h
1141     xform_asm
1142     xmm_clobbers
1143     yasm
1144 "
1145
1146 # options emitted with CONFIG_ prefix but not available on command line
1147 CONFIG_EXTRA="
1148     avutil
1149     gplv3
1150     lgplv3
1151 "
1152
1153 CMDLINE_SELECT="
1154     $ARCH_EXT_LIST
1155     $CONFIG_LIST
1156     $THREADS_LIST
1157     asm
1158     cross_compile
1159     debug
1160     extra_warnings
1161     logging
1162     optimizations
1163     symver
1164     yasm
1165 "
1166
1167 PATHS_LIST='
1168     bindir
1169     datadir
1170     incdir
1171     libdir
1172     mandir
1173     prefix
1174     shlibdir
1175 '
1176
1177 CMDLINE_SET="
1178     $PATHS_LIST
1179     ar
1180     arch
1181     as
1182     build_suffix
1183     cc
1184     cpu
1185     cross_prefix
1186     dep_cc
1187     extra_version
1188     host_cc
1189     host_cflags
1190     host_ldflags
1191     host_libs
1192     host_os
1193     ld
1194     logfile
1195     malloc_prefix
1196     nm
1197     optflags
1198     pkg_config
1199     samples
1200     sysinclude
1201     sysroot
1202     target_exec
1203     target_os
1204     target_path
1205 "
1206
1207 CMDLINE_APPEND="
1208     extra_cflags
1209 "
1210
1211 # code dependency declarations
1212
1213 # architecture extensions
1214
1215 armv5te_deps="arm"
1216 armv6_deps="arm"
1217 armv6t2_deps="arm"
1218 armvfp_deps="arm"
1219 iwmmxt_deps="arm"
1220 neon_deps="arm"
1221 vfpv3_deps="armvfp"
1222
1223 mmi_deps="mips"
1224
1225 altivec_deps="ppc"
1226 ppc4xx_deps="ppc"
1227
1228 vis_deps="sparc"
1229
1230 x86_64_suggest="cmov fast_cmov"
1231 amd3dnow_deps="mmx"
1232 amd3dnowext_deps="amd3dnow"
1233 mmx_deps="x86"
1234 mmx2_deps="mmx"
1235 sse_deps="mmx"
1236 ssse3_deps="sse"
1237 avx_deps="ssse3"
1238
1239 aligned_stack_if_any="ppc x86"
1240 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1241 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1242 fast_unaligned_if_any="armv6 ppc x86"
1243
1244 need_memalign="altivec neon sse"
1245 inline_asm_deps="!tms470"
1246
1247 symver_if_any="symver_asm_label symver_gnu_asm"
1248
1249 # subsystems
1250 dct_select="rdft"
1251 mdct_select="fft"
1252 rdft_select="fft"
1253 mpegaudiodsp_select="dct"
1254
1255 # decoders / encoders / hardware accelerators
1256 aac_decoder_select="mdct sinewin"
1257 aac_encoder_select="mdct sinewin"
1258 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1259 ac3_decoder_select="mdct ac3dsp ac3_parser"
1260 ac3_encoder_select="mdct ac3dsp"
1261 ac3_fixed_encoder_select="mdct ac3dsp"
1262 alac_encoder_select="lpc"
1263 amrnb_decoder_select="lsp"
1264 amrwb_decoder_select="lsp"
1265 atrac1_decoder_select="mdct sinewin"
1266 atrac3_decoder_select="mdct"
1267 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1268 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1269 cavs_decoder_select="golomb"
1270 cook_decoder_select="mdct sinewin"
1271 cscd_decoder_suggest="zlib"
1272 dca_decoder_select="mdct"
1273 dnxhd_encoder_select="aandct"
1274 dxa_decoder_select="zlib"
1275 eac3_decoder_select="ac3_decoder"
1276 eac3_encoder_select="mdct ac3dsp"
1277 eamad_decoder_select="aandct"
1278 eatgq_decoder_select="aandct"
1279 eatqi_decoder_select="aandct"
1280 ffv1_decoder_select="golomb"
1281 flac_decoder_select="golomb"
1282 flac_encoder_select="golomb lpc"
1283 flashsv_decoder_select="zlib"
1284 flashsv_encoder_select="zlib"
1285 flashsv2_decoder_select="zlib"
1286 flv_decoder_select="h263_decoder"
1287 flv_encoder_select="h263_encoder"
1288 fraps_decoder_select="huffman"
1289 h261_encoder_select="aandct"
1290 h263_decoder_select="h263_parser"
1291 h263_encoder_select="aandct"
1292 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1293 h263i_decoder_select="h263_decoder"
1294 h263p_encoder_select="h263_encoder"
1295 h264_decoder_select="golomb h264dsp h264pred"
1296 h264_dxva2_hwaccel_deps="dxva2api_h"
1297 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1298 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1299 h264_vda_hwaccel_select="vda h264_decoder"
1300 h264_vdpau_decoder_select="vdpau h264_decoder"
1301 imc_decoder_select="fft mdct sinewin"
1302 jpegls_decoder_select="golomb"
1303 jpegls_encoder_select="golomb"
1304 ljpeg_encoder_select="aandct"
1305 loco_decoder_select="golomb"
1306 mjpeg_encoder_select="aandct"
1307 mlp_decoder_select="mlp_parser"
1308 mp1_decoder_select="mpegaudiodsp"
1309 mp2_decoder_select="mpegaudiodsp"
1310 mp3adu_decoder_select="mpegaudiodsp"
1311 mp3_decoder_select="mpegaudiodsp"
1312 mp3on4_decoder_select="mpegaudiodsp"
1313 mp1float_decoder_select="mpegaudiodsp"
1314 mp2float_decoder_select="mpegaudiodsp"
1315 mp3adufloat_decoder_select="mpegaudiodsp"
1316 mp3float_decoder_select="mpegaudiodsp"
1317 mp3on4float_decoder_select="mpegaudiodsp"
1318 mpeg1video_encoder_select="aandct"
1319 mpeg2video_encoder_select="aandct"
1320 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1321 mpeg4_encoder_select="h263_encoder"
1322 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1323 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1324 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1325 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1326 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1327 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1328 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1329 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1330 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1331 msmpeg4v1_decoder_select="h263_decoder"
1332 msmpeg4v1_encoder_select="h263_encoder"
1333 msmpeg4v2_decoder_select="h263_decoder"
1334 msmpeg4v2_encoder_select="h263_encoder"
1335 msmpeg4v3_decoder_select="h263_decoder"
1336 msmpeg4v3_encoder_select="h263_encoder"
1337 nellymoser_decoder_select="mdct sinewin"
1338 nellymoser_encoder_select="mdct sinewin"
1339 png_decoder_select="zlib"
1340 png_encoder_select="zlib"
1341 qcelp_decoder_select="lsp"
1342 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1343 ra_144_encoder_select="lpc"
1344 rv10_decoder_select="h263_decoder"
1345 rv10_encoder_select="h263_encoder"
1346 rv20_decoder_select="h263_decoder"
1347 rv20_encoder_select="h263_encoder"
1348 rv30_decoder_select="golomb h264pred"
1349 rv40_decoder_select="golomb h264pred"
1350 shorten_decoder_select="golomb"
1351 sipr_decoder_select="lsp"
1352 snow_decoder_select="dwt"
1353 snow_encoder_select="aandct dwt"
1354 svq1_encoder_select="aandct"
1355 svq3_decoder_select="golomb h264dsp h264pred"
1356 svq3_decoder_suggest="zlib"
1357 theora_decoder_select="vp3_decoder"
1358 tiff_decoder_suggest="zlib"
1359 tiff_encoder_suggest="zlib"
1360 truehd_decoder_select="mlp_decoder"
1361 tscc_decoder_select="zlib"
1362 twinvq_decoder_select="mdct lsp sinewin"
1363 vc1_decoder_select="h263_decoder"
1364 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1365 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1366 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1367 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1368 vc1image_decoder_select="vc1_decoder"
1369 vorbis_decoder_select="mdct"
1370 vorbis_encoder_select="mdct"
1371 vp6_decoder_select="huffman"
1372 vp6a_decoder_select="vp6_decoder"
1373 vp6f_decoder_select="vp6_decoder"
1374 vp8_decoder_select="h264pred"
1375 wmapro_decoder_select="mdct sinewin"
1376 wmav1_decoder_select="mdct sinewin"
1377 wmav1_encoder_select="mdct sinewin"
1378 wmav2_decoder_select="mdct sinewin"
1379 wmav2_encoder_select="mdct sinewin"
1380 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1381 wmv1_decoder_select="h263_decoder"
1382 wmv1_encoder_select="h263_encoder"
1383 wmv2_decoder_select="h263_decoder"
1384 wmv2_encoder_select="h263_encoder"
1385 wmv3_decoder_select="vc1_decoder"
1386 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1387 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1388 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1389 wmv3image_decoder_select="wmv3_decoder"
1390 zlib_decoder_select="zlib"
1391 zlib_encoder_select="zlib"
1392 zmbv_decoder_select="zlib"
1393 zmbv_encoder_select="zlib"
1394
1395 vaapi_deps="va_va_h"
1396 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1397 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1398
1399 # parsers
1400 h264_parser_select="golomb h264dsp h264pred"
1401
1402 # external libraries
1403 libdirac_decoder_deps="libdirac !libschroedinger"
1404 libdirac_encoder_deps="libdirac"
1405 libfaac_encoder_deps="libfaac"
1406 libgsm_decoder_deps="libgsm"
1407 libgsm_encoder_deps="libgsm"
1408 libgsm_ms_decoder_deps="libgsm"
1409 libgsm_ms_encoder_deps="libgsm"
1410 libmp3lame_encoder_deps="libmp3lame"
1411 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1412 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1413 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1414 libopenjpeg_decoder_deps="libopenjpeg"
1415 libschroedinger_decoder_deps="libschroedinger"
1416 libschroedinger_encoder_deps="libschroedinger"
1417 libspeex_decoder_deps="libspeex"
1418 libspeex_encoder_deps="libspeex"
1419 libtheora_encoder_deps="libtheora"
1420 libvo_aacenc_encoder_deps="libvo_aacenc"
1421 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1422 libvorbis_encoder_deps="libvorbis"
1423 libvpx_decoder_deps="libvpx"
1424 libvpx_encoder_deps="libvpx"
1425 libx264_encoder_deps="libx264"
1426 libxavs_encoder_deps="libxavs"
1427 libxvid_encoder_deps="libxvid"
1428
1429 # demuxers / muxers
1430 ac3_demuxer_select="ac3_parser"
1431 asf_stream_muxer_select="asf_muxer"
1432 avisynth_demuxer_deps="avisynth"
1433 dirac_demuxer_select="dirac_parser"
1434 eac3_demuxer_select="ac3_parser"
1435 flac_demuxer_select="flac_parser"
1436 ipod_muxer_select="mov_muxer"
1437 libnut_demuxer_deps="libnut"
1438 libnut_muxer_deps="libnut"
1439 matroska_audio_muxer_select="matroska_muxer"
1440 matroska_demuxer_suggest="zlib bzlib"
1441 mov_demuxer_suggest="zlib"
1442 mp3_demuxer_select="mpegaudio_parser"
1443 mp4_muxer_select="mov_muxer"
1444 mpegtsraw_demuxer_select="mpegts_demuxer"
1445 mxf_d10_muxer_select="mxf_muxer"
1446 ogg_demuxer_select="golomb"
1447 psp_muxer_select="mov_muxer"
1448 rtp_demuxer_select="sdp_demuxer"
1449 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1450 rtsp_demuxer_select="http_protocol rtpdec"
1451 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1452 sap_demuxer_select="sdp_demuxer"
1453 sap_muxer_select="rtp_muxer rtp_protocol"
1454 sdp_demuxer_select="rtpdec"
1455 spdif_muxer_select="aac_parser"
1456 tg2_muxer_select="mov_muxer"
1457 tgp_muxer_select="mov_muxer"
1458 w64_demuxer_deps="wav_demuxer"
1459
1460 # indevs / outdevs
1461 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1462 alsa_outdev_deps="alsa_asoundlib_h"
1463 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1464 dv1394_indev_deps="dv1394 dv_demuxer"
1465 fbdev_indev_deps="linux_fb_h"
1466 jack_indev_deps="jack_jack_h"
1467 libcdio_indev_deps="libcdio"
1468 libdc1394_indev_deps="libdc1394"
1469 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1470 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1471 pulse_indev_deps="libpulse"
1472 sndio_indev_deps="sndio_h"
1473 sndio_outdev_deps="sndio_h"
1474 v4l_indev_deps="linux_videodev_h"
1475 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1476 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1477 vfwcap_indev_extralibs="-lavicap32"
1478 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1479 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1480
1481 # protocols
1482 gopher_protocol_deps="network"
1483 httpproxy_protocol_deps="network"
1484 httpproxy_protocol_select="tcp_protocol"
1485 http_protocol_deps="network"
1486 http_protocol_select="tcp_protocol"
1487 https_protocol_select="tls_protocol"
1488 mmsh_protocol_select="http_protocol"
1489 mmst_protocol_deps="network"
1490 rtmp_protocol_select="tcp_protocol"
1491 rtp_protocol_select="udp_protocol"
1492 tcp_protocol_deps="network"
1493 tls_protocol_deps_any="openssl gnutls"
1494 tls_protocol_select="tcp_protocol"
1495 udp_protocol_deps="network"
1496
1497 # filters
1498 blackframe_filter_deps="gpl"
1499 boxblur_filter_deps="gpl"
1500 cropdetect_filter_deps="gpl"
1501 delogo_filter_deps="gpl"
1502 drawtext_filter_deps="libfreetype"
1503 frei0r_filter_deps="frei0r dlopen strtok_r"
1504 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1505 hqdn3d_filter_deps="gpl"
1506 ocv_filter_deps="libopencv"
1507 scale_filter_deps="swscale"
1508 yadif_filter_deps="gpl"
1509
1510 # libraries
1511 avdevice_deps="avcodec avformat"
1512 avformat_deps="avcodec"
1513 postproc_deps="gpl"
1514
1515 # programs
1516 ffmpeg_deps="avcodec avformat swscale"
1517 ffmpeg_select="buffer_filter"
1518 avconv_deps="avcodec avformat swscale"
1519 avconv_select="buffer_filter"
1520 avplay_deps="avcodec avformat swscale sdl"
1521 avplay_select="rdft"
1522 avprobe_deps="avcodec avformat"
1523 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1524 avserver_extralibs='$ldl'
1525
1526 doc_deps="texi2html"
1527
1528 # tests
1529
1530 test_deps(){
1531     suf1=$1
1532     suf2=$2
1533     shift 2
1534     for v; do
1535         dep=${v%=*}
1536         tests=${v#*=}
1537         for name in ${tests}; do
1538             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1539         done
1540     done
1541 }
1542
1543 mxf_d10_test_deps="avfilter"
1544 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1545
1546 test_deps _encoder _decoder                                             \
1547     adpcm_g726=g726                                                     \
1548     adpcm_ima_qt                                                        \
1549     adpcm_ima_wav                                                       \
1550     adpcm_ms                                                            \
1551     adpcm_swf                                                           \
1552     adpcm_yamaha=adpcm_yam                                              \
1553     alac                                                                \
1554     asv1                                                                \
1555     asv2                                                                \
1556     bmp                                                                 \
1557     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1558     dvvideo="dv dv_411 dv50"                                            \
1559     ffv1                                                                \
1560     flac                                                                \
1561     flashsv                                                             \
1562     flv                                                                 \
1563     gif                                                                 \
1564     h261                                                                \
1565     h263="h263 h263p"                                                   \
1566     huffyuv                                                             \
1567     jpegls                                                              \
1568     mjpeg="jpg mjpeg ljpeg"                                             \
1569     mp2                                                                 \
1570     mpeg1video="mpeg mpeg1b"                                            \
1571     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1572     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1573     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1574     mpeg4="mpeg4thread error rc"                                        \
1575     msmpeg4v3=msmpeg4                                                   \
1576     msmpeg4v2                                                           \
1577     pbm=pbmpipe                                                         \
1578     pcx                                                                 \
1579     pgm="pgm pgmpipe"                                                   \
1580     png                                                                 \
1581     ppm="ppm ppmpipe"                                                   \
1582     rawvideo="rgb yuv"                                                  \
1583     roq                                                                 \
1584     rv10                                                                \
1585     rv20                                                                \
1586     sgi                                                                 \
1587     snow="snow snowll"                                                  \
1588     svq1                                                                \
1589     targa=tga                                                           \
1590     tiff                                                                \
1591     wmav1                                                               \
1592     wmav2                                                               \
1593     wmv1                                                                \
1594     wmv2                                                                \
1595
1596 test_deps _muxer _demuxer                                               \
1597     aiff                                                                \
1598     pcm_alaw=alaw                                                       \
1599     asf                                                                 \
1600     au                                                                  \
1601     avi                                                                 \
1602     dv=dv_fmt                                                           \
1603     ffm                                                                 \
1604     flv=flv_fmt                                                         \
1605     gxf                                                                 \
1606     matroska=mkv                                                        \
1607     mmf                                                                 \
1608     mov                                                                 \
1609     pcm_mulaw=mulaw                                                     \
1610     mxf="mxf mxf_d10"                                                   \
1611     nut                                                                 \
1612     ogg                                                                 \
1613     rawvideo=pixfmt                                                     \
1614     rm                                                                  \
1615     swf                                                                 \
1616     mpegts=ts                                                           \
1617     voc                                                                 \
1618     wav                                                                 \
1619     yuv4mpegpipe=yuv4mpeg                                               \
1620
1621 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1622 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1623
1624 # default parameters
1625
1626 logfile="config.log"
1627
1628 # installation paths
1629 prefix_default="/usr/local"
1630 bindir_default='${prefix}/bin'
1631 datadir_default='${prefix}/share/avconv'
1632 incdir_default='${prefix}/include'
1633 libdir_default='${prefix}/lib'
1634 mandir_default='${prefix}/share/man'
1635 shlibdir_default="$libdir_default"
1636
1637 # toolchain
1638 ar_default="ar"
1639 cc_default="gcc"
1640 cc_version=\"unknown\"
1641 host_cc_default="gcc"
1642 ln_s="ln -sf"
1643 nm_default="nm"
1644 objformat="elf"
1645 pkg_config_default=pkg-config
1646 ranlib="ranlib"
1647 yasmexe="yasm"
1648 nogas=":"
1649
1650 nm_opts='-g'
1651
1652 # machine
1653 arch_default=$(uname -m)
1654 cpu="generic"
1655
1656 # OS
1657 target_os_default=$(tolower $(uname -s))
1658 host_os=$target_os_default
1659
1660 # configurable options
1661 enable avcodec
1662 enable avdevice
1663 enable avfilter
1664 enable avformat
1665 enable avutil
1666 enable asm
1667 enable debug
1668 enable doc
1669 enable fastdiv
1670 enable ffmpeg
1671 enable avconv
1672 enable avplay
1673 enable avprobe
1674 enable avserver
1675 enable network
1676 enable optimizations
1677 enable postproc
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     if ! disabled_any asm mmx yasm; then
2743         if check_cmd $yasmexe --version; then
2744             enabled x86_64 && yasm_extra="-m amd64"
2745             yasm_debug="-g dwarf2"
2746         elif check_cmd nasm -v; then
2747             yasmexe=nasm
2748             yasm_debug="-g -F dwarf"
2749             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2750         fi
2751
2752         YASMFLAGS="-f $objformat $yasm_extra"
2753         enabled pic               && append YASMFLAGS "-DPIC"
2754         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2755         case "$objformat" in
2756             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2757         esac
2758
2759         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2760             die "yasm not found, use --disable-yasm for a crippled build"
2761         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2762     fi
2763
2764     case "$cpu" in
2765         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2766             disable fast_clz
2767         ;;
2768     esac
2769
2770 fi
2771
2772 if enabled asm; then
2773     as=${gas:=$as}
2774     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2775         $nogas "GNU assembler not found, install gas-preprocessor"
2776 fi
2777
2778 check_ldflags -Wl,--as-needed
2779
2780 if check_func dlopen; then
2781     ldl=
2782 elif check_func dlopen -ldl; then
2783     ldl=-ldl
2784 fi
2785
2786 if enabled network; then
2787     check_type "sys/types.h sys/socket.h" socklen_t
2788     check_type netdb.h "struct addrinfo"
2789     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2790     check_type netinet/in.h "struct sockaddr_in6"
2791     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2792     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2793     # Prefer arpa/inet.h over winsock2
2794     if check_header arpa/inet.h ; then
2795         check_func closesocket
2796     elif check_header winsock2.h ; then
2797         check_func_headers winsock2.h closesocket -lws2 && \
2798             network_extralibs="-lws2" || \
2799         { check_func_headers winsock2.h closesocket -lws2_32 && \
2800             network_extralibs="-lws2_32"; }
2801         check_type ws2tcpip.h socklen_t
2802         check_type ws2tcpip.h "struct addrinfo"
2803         check_type ws2tcpip.h "struct ipv6_mreq"
2804         check_type ws2tcpip.h "struct sockaddr_in6"
2805         check_type ws2tcpip.h "struct sockaddr_storage"
2806         check_struct winsock2.h "struct sockaddr" sa_len
2807     else
2808         disable network
2809     fi
2810 fi
2811
2812 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2813 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2814
2815 check_func  fcntl
2816 check_func  fork
2817 check_func  getaddrinfo $network_extralibs
2818 check_func  gethrtime
2819 check_func  getrusage
2820 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2821 check_func  inet_aton $network_extralibs
2822 check_func  isatty
2823 check_func  localtime_r
2824 check_func  ${malloc_prefix}memalign            && enable memalign
2825 check_func  mkstemp
2826 check_func  mmap
2827 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2828 check_func  setrlimit
2829 check_func  strerror_r
2830 check_func  strptime
2831 check_func  strtok_r
2832 check_func_headers io.h setmode
2833 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2834 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2835 check_func_headers windows.h GetProcessTimes
2836 check_func_headers windows.h MapViewOfFile
2837 check_func_headers windows.h VirtualAlloc
2838
2839 check_header dlfcn.h
2840 check_header dxva2api.h
2841 check_header malloc.h
2842 check_header poll.h
2843 check_header sys/mman.h
2844 check_header sys/resource.h
2845 check_header sys/select.h
2846 check_header vdpau/vdpau.h
2847 check_header vdpau/vdpau_x11.h
2848 check_header X11/extensions/XvMClib.h
2849
2850 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2851
2852 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2853 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2854
2855 if ! disabled w32threads && ! enabled pthreads; then
2856     check_func _beginthreadex && enable w32threads
2857 fi
2858
2859 # check for some common methods of building with pthread support
2860 # do this before the optional library checks as some of them require pthreads
2861 if ! disabled pthreads && ! enabled w32threads; then
2862     enable pthreads
2863     if check_func pthread_create; then
2864         :
2865     elif check_func pthread_create -pthread; then
2866         add_cflags -pthread
2867         add_extralibs -pthread
2868     elif check_func pthread_create -pthreads; then
2869         add_cflags -pthreads
2870         add_extralibs -pthreads
2871     elif check_func pthread_create -lpthreadGC2; then
2872         add_extralibs -lpthreadGC2
2873     elif ! check_lib pthread.h pthread_create -lpthread; then
2874         disable pthreads
2875     fi
2876 fi
2877
2878 for thread in $THREADS_LIST; do
2879     if enabled $thread; then
2880         test -n "$thread_type" &&
2881             die "ERROR: Only one thread type must be selected." ||
2882             thread_type="$thread"
2883     fi
2884 done
2885
2886 check_lib math.h sin -lm && LIBM="-lm"
2887 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2888
2889 check_mathfunc exp2
2890 check_mathfunc exp2f
2891 check_mathfunc llrint
2892 check_mathfunc llrintf
2893 check_mathfunc log2
2894 check_mathfunc log2f
2895 check_mathfunc lrint
2896 check_mathfunc lrintf
2897 check_mathfunc round
2898 check_mathfunc roundf
2899 check_mathfunc trunc
2900 check_mathfunc truncf
2901
2902 # these are off by default, so fail if requested and not available
2903 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2904 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2905 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2906 enabled libdirac   && require_pkg_config dirac                          \
2907     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2908     "dirac_decoder_init dirac_encoder_init"
2909 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2910 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2911 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2912 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2913 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2914 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2915 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2916 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2917 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2918 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2919 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2920 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2921 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2922 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2923 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2924 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2925 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2926 enabled libvpx     && {
2927     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2928                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2929     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2930                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2931 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2932                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2933                         die "ERROR: libx264 version must be >= 0.118."; }
2934 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2935 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2936 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2937 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2938                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2939                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2940                         die "ERROR: openssl not found"; }
2941
2942 # libdc1394 check
2943 if enabled libdc1394; then
2944     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2945         enable libdc1394_2; } ||
2946     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2947         enable libdc1394_1; } ||
2948     die "ERROR: No version of libdc1394 found "
2949 fi
2950
2951 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2952     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2953     enable sdl &&
2954     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2955 fi
2956
2957 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2958
2959 check_header linux/fb.h
2960 check_header linux/videodev.h
2961 check_header linux/videodev2.h
2962 check_header sys/videoio.h
2963
2964 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2965 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2966 # w32api 3.12 had it defined wrong
2967 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2968
2969 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2970 { check_header dev/bktr/ioctl_meteor.h &&
2971   check_header dev/bktr/ioctl_bt848.h; } ||
2972 { check_header machine/ioctl_meteor.h &&
2973   check_header machine/ioctl_bt848.h; } ||
2974 { check_header dev/video/meteor/ioctl_meteor.h &&
2975   check_header dev/video/bktr/ioctl_bt848.h; } ||
2976 check_header dev/ic/bt8xx.h
2977
2978 check_header sndio.h
2979 check_header sys/soundcard.h
2980 check_header soundcard.h
2981
2982 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2983
2984 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2985
2986 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2987
2988 enabled libcdio &&
2989     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2990
2991 enabled x11grab                         &&
2992 check_header X11/Xlib.h                 &&
2993 check_header X11/extensions/XShm.h      &&
2994 check_header X11/extensions/Xfixes.h    &&
2995 check_func XOpenDisplay -lX11           &&
2996 check_func XShmCreateImage -lX11 -lXext &&
2997 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2998
2999 # check for VDA header
3000 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3001     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3002 fi
3003
3004 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3005 check_cpp_condition \
3006     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3007     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3008       disable vdpau; }
3009 fi
3010
3011 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3012
3013 # add some useful compiler flags if supported
3014 check_cflags -Wdeclaration-after-statement
3015 check_cflags -Wall
3016 check_cflags -Wno-parentheses
3017 check_cflags -Wno-switch
3018 check_cflags -Wno-format-zero-length
3019 check_cflags -Wdisabled-optimization
3020 check_cflags -Wpointer-arith
3021 check_cflags -Wredundant-decls
3022 check_cflags -Wno-pointer-sign
3023 check_cflags -Wcast-qual
3024 check_cflags -Wwrite-strings
3025 check_cflags -Wtype-limits
3026 check_cflags -Wundef
3027 check_cflags -Wmissing-prototypes
3028 check_cflags -Wstrict-prototypes
3029 enabled extra_warnings && check_cflags -Winline
3030
3031 # add some linker flags
3032 check_ldflags -Wl,--warn-common
3033 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3034 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3035
3036 echo "X{};" > $TMPV
3037 if test_ldflags -Wl,--version-script,$TMPV; then
3038     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3039     check_cc <<EOF && enable symver_asm_label
3040 void ff_foo(void) __asm__ ("av_foo@VERSION");
3041 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3042 EOF
3043     check_cc <<EOF && enable symver_gnu_asm
3044 __asm__(".symver ff_foo,av_foo@VERSION");
3045 void ff_foo(void) {}
3046 EOF
3047 fi
3048
3049 if [ -n "$optflags" ]; then
3050     add_cflags $optflags
3051 elif enabled small; then
3052     add_cflags $size_cflags
3053 elif enabled optimizations; then
3054     add_cflags $speed_cflags
3055 else
3056     add_cflags $noopt_cflags
3057 fi
3058 check_cflags -fno-math-errno
3059 check_cflags -fno-signed-zeros
3060
3061 if enabled icc; then
3062     # Just warnings, no remarks
3063     check_cflags -w1
3064     # -wd: Disable following warnings
3065     # 144, 167, 556: -Wno-pointer-sign
3066     # 1292: attribute "foo" ignored
3067     # 10006: ignoring unknown option -fno-signed-zeros
3068     # 10148: ignoring unknown option -Wno-parentheses
3069     # 10156: ignoring option '-W'; no argument required
3070     check_cflags -wd144,167,556,1292,10006,10148,10156
3071     # 11030: Warning unknown option --as-needed
3072     # 10156: ignoring option '-export'; no argument required
3073     check_ldflags -wd10156,11030
3074     # Allow to compile with optimizations
3075     check_ldflags -march=$cpu
3076     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3077     enable ebp_available
3078     if enabled x86_32; then
3079         test ${icc_version%%.*} -ge 11 && \
3080             check_cflags -falign-stack=maintain-16-byte || \
3081             disable aligned_stack
3082     fi
3083 elif enabled ccc; then
3084     # disable some annoying warnings
3085     add_cflags -msg_disable cvtu32to64
3086     add_cflags -msg_disable embedcomment
3087     add_cflags -msg_disable needconstext
3088     add_cflags -msg_disable nomainieee
3089     add_cflags -msg_disable ptrmismatch1
3090     add_cflags -msg_disable unreachcode
3091 elif enabled gcc; then
3092     check_cflags -fno-tree-vectorize
3093     check_cflags -Werror=implicit-function-declaration
3094     check_cflags -Werror=missing-prototypes
3095 elif enabled llvm_gcc; then
3096     check_cflags -mllvm -stack-alignment=16
3097 elif enabled clang; then
3098     check_cflags -mllvm -stack-alignment=16
3099     check_cflags -Qunused-arguments
3100 elif enabled armcc; then
3101     # 2523: use of inline assembler is deprecated
3102     add_cflags -W${armcc_opt},--diag_suppress=2523
3103     add_cflags -W${armcc_opt},--diag_suppress=1207
3104     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3105     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3106     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3107     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3108 elif enabled tms470; then
3109     add_cflags -pds=824 -pds=837
3110 elif enabled pathscale; then
3111     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3112 fi
3113
3114 enabled_any $THREADS_LIST      && enable threads
3115
3116 check_deps $CONFIG_LIST       \
3117            $CONFIG_EXTRA      \
3118            $HAVE_LIST         \
3119            $DECODER_LIST      \
3120            $ENCODER_LIST      \
3121            $HWACCEL_LIST      \
3122            $PARSER_LIST       \
3123            $BSF_LIST          \
3124            $DEMUXER_LIST      \
3125            $MUXER_LIST        \
3126            $FILTER_LIST       \
3127            $INDEV_LIST        \
3128            $OUTDEV_LIST       \
3129            $PROTOCOL_LIST     \
3130            $ACODEC_TESTS      \
3131            $VCODEC_TESTS      \
3132            $LAVF_TESTS        \
3133            $LAVFI_TESTS       \
3134            $SEEK_TESTS        \
3135
3136 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3137
3138 ! enabled_any memalign posix_memalign malloc_aligned &&
3139     enabled_any $need_memalign && enable memalign_hack
3140
3141 echo "install prefix            $prefix"
3142 echo "source path               $source_path"
3143 echo "C compiler                $cc"
3144 echo "ARCH                      $arch ($cpu)"
3145 if test "$build_suffix" != ""; then
3146     echo "build suffix              $build_suffix"
3147 fi
3148 if test "$extra_version" != ""; then
3149     echo "version string suffix     $extra_version"
3150 fi
3151 echo "big-endian                ${bigendian-no}"
3152 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3153 if enabled x86; then
3154     echo "${yasmexe}                      ${yasm-no}"
3155     echo "MMX enabled               ${mmx-no}"
3156     echo "MMX2 enabled              ${mmx2-no}"
3157     echo "3DNow! enabled            ${amd3dnow-no}"
3158     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3159     echo "SSE enabled               ${sse-no}"
3160     echo "SSSE3 enabled             ${ssse3-no}"
3161     echo "AVX enabled               ${avx-no}"
3162     echo "CMOV enabled              ${cmov-no}"
3163     echo "CMOV is fast              ${fast_cmov-no}"
3164     echo "EBX available             ${ebx_available-no}"
3165     echo "EBP available             ${ebp_available-no}"
3166 fi
3167 if enabled arm; then
3168     echo "ARMv5TE enabled           ${armv5te-no}"
3169     echo "ARMv6 enabled             ${armv6-no}"
3170     echo "ARMv6T2 enabled           ${armv6t2-no}"
3171     echo "ARM VFP enabled           ${armvfp-no}"
3172     echo "IWMMXT enabled            ${iwmmxt-no}"
3173     echo "NEON enabled              ${neon-no}"
3174 fi
3175 if enabled mips; then
3176     echo "MMI enabled               ${mmi-no}"
3177 fi
3178 if enabled ppc; then
3179     echo "AltiVec enabled           ${altivec-no}"
3180     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3181     echo "dcbzl available           ${dcbzl-no}"
3182 fi
3183 if enabled sparc; then
3184     echo "VIS enabled               ${vis-no}"
3185 fi
3186 echo "debug symbols             ${debug-no}"
3187 echo "optimize for size         ${small-no}"
3188 echo "optimizations             ${optimizations-no}"
3189 echo "static                    ${static-no}"
3190 echo "shared                    ${shared-no}"
3191 echo "postprocessing support    ${postproc-no}"
3192 echo "new filter support        ${avfilter-no}"
3193 echo "network support           ${network-no}"
3194 echo "threading support         ${thread_type-no}"
3195 echo "SDL support               ${sdl-no}"
3196 echo "Sun medialib support      ${mlib-no}"
3197 echo "libdxva2 enabled          ${dxva2-no}"
3198 echo "libva enabled             ${vaapi-no}"
3199 echo "libvdpau enabled          ${vdpau-no}"
3200 echo "AVISynth enabled          ${avisynth-no}"
3201 echo "frei0r enabled            ${frei0r-no}"
3202 echo "gnutls enabled            ${gnutls-no}"
3203 echo "libcdio support           ${libcdio-no}"
3204 echo "libdc1394 support         ${libdc1394-no}"
3205 echo "libdirac enabled          ${libdirac-no}"
3206 echo "libfaac enabled           ${libfaac-no}"
3207 echo "libgsm enabled            ${libgsm-no}"
3208 echo "libmp3lame enabled        ${libmp3lame-no}"
3209 echo "libnut enabled            ${libnut-no}"
3210 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3211 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3212 echo "libopencv support         ${libopencv-no}"
3213 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3214 echo "libpulse enabled          ${libpulse-no}"
3215 echo "librtmp enabled           ${librtmp-no}"
3216 echo "libschroedinger enabled   ${libschroedinger-no}"
3217 echo "libspeex enabled          ${libspeex-no}"
3218 echo "libtheora enabled         ${libtheora-no}"
3219 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3220 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3221 echo "libvorbis enabled         ${libvorbis-no}"
3222 echo "libvpx enabled            ${libvpx-no}"
3223 echo "libx264 enabled           ${libx264-no}"
3224 echo "libxavs enabled           ${libxavs-no}"
3225 echo "libxvid enabled           ${libxvid-no}"
3226 echo "openssl enabled           ${openssl-no}"
3227 echo "zlib enabled              ${zlib-no}"
3228 echo "bzlib enabled             ${bzlib-no}"
3229 echo
3230
3231 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3232     echo "Enabled ${type}s:"
3233     eval list=\$$(toupper $type)_LIST
3234     print_enabled '_*' $list | sort | pr -r -3 -t
3235     echo
3236 done
3237
3238 license="LGPL version 2.1 or later"
3239 if enabled nonfree; then
3240     license="nonfree and unredistributable"
3241 elif enabled gplv3; then
3242     license="GPL version 3 or later"
3243 elif enabled lgplv3; then
3244     license="LGPL version 3 or later"
3245 elif enabled gpl; then
3246     license="GPL version 2 or later"
3247 fi
3248
3249 echo "License: $license"
3250
3251 echo "Creating config.mak and config.h..."
3252
3253 test -e Makefile || $ln_s "$source_path/Makefile" .
3254
3255 config_files="$TMPH config.mak"
3256
3257 cat > config.mak <<EOF
3258 # Automatically generated by configure - do not modify!
3259 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3260 prefix=$prefix
3261 LIBDIR=\$(DESTDIR)$libdir
3262 SHLIBDIR=\$(DESTDIR)$shlibdir
3263 INCDIR=\$(DESTDIR)$incdir
3264 BINDIR=\$(DESTDIR)$bindir
3265 DATADIR=\$(DESTDIR)$datadir
3266 MANDIR=\$(DESTDIR)$mandir
3267 SRC_PATH=$source_path
3268 CC_IDENT=$cc_ident
3269 ARCH=$arch
3270 CC=$cc
3271 AS=$as
3272 LD=$ld
3273 DEPCC=$dep_cc
3274 YASM=$yasmexe
3275 YASMDEP=$yasmexe
3276 AR=$ar
3277 RANLIB=$ranlib
3278 LN_S=$ln_s
3279 CPPFLAGS=$CPPFLAGS
3280 CFLAGS=$CFLAGS
3281 ASFLAGS=$ASFLAGS
3282 AS_O=$CC_O
3283 CC_O=$CC_O
3284 DLLTOOL=$dlltool
3285 LDFLAGS=$LDFLAGS
3286 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3287 SHFLAGS=$SHFLAGS
3288 YASMFLAGS=$YASMFLAGS
3289 BUILDSUF=$build_suffix
3290 FULLNAME=$FULLNAME
3291 LIBPREF=$LIBPREF
3292 LIBSUF=$LIBSUF
3293 LIBNAME=$LIBNAME
3294 SLIBPREF=$SLIBPREF
3295 SLIBSUF=$SLIBSUF
3296 EXESUF=$EXESUF
3297 EXTRA_VERSION=$extra_version
3298 DEPFLAGS=$DEPFLAGS
3299 CCDEP=$CCDEP
3300 ASDEP=$ASDEP
3301 CC_DEPFLAGS=$CC_DEPFLAGS
3302 AS_DEPFLAGS=$AS_DEPFLAGS
3303 HOSTCC=$host_cc
3304 HOSTCFLAGS=$host_cflags
3305 HOSTEXESUF=$HOSTEXESUF
3306 HOSTLDFLAGS=$host_ldflags
3307 HOSTLIBS=$host_libs
3308 TARGET_EXEC=$target_exec
3309 TARGET_PATH=$target_path
3310 SDL_LIBS=$sdl_libs
3311 SDL_CFLAGS=$sdl_cflags
3312 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3313 EXTRALIBS=$extralibs
3314 INSTALL=install
3315 LIBTARGET=${LIBTARGET}
3316 SLIBNAME=${SLIBNAME}
3317 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3318 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3319 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3320 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3321 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3322 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3323 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3324 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3325 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3326 EOF
3327
3328 get_version(){
3329     name=$1
3330     file=$source_path/$2
3331     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3332     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3333     lcname=$(tolower $name)
3334     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3335     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3336 }
3337
3338 get_version LIBSWSCALE  libswscale/swscale.h
3339 get_version LIBPOSTPROC libpostproc/postprocess.h
3340 get_version LIBAVCODEC  libavcodec/version.h
3341 get_version LIBAVDEVICE libavdevice/avdevice.h
3342 get_version LIBAVFORMAT libavformat/version.h
3343 get_version LIBAVUTIL   libavutil/avutil.h
3344 get_version LIBAVFILTER libavfilter/avfilter.h
3345
3346 cat > $TMPH <<EOF
3347 /* Automatically generated by configure - do not modify! */
3348 #ifndef LIBAV_CONFIG_H
3349 #define LIBAV_CONFIG_H
3350 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3351 #define LIBAV_LICENSE "$(c_escape $license)"
3352 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3353 #define CC_TYPE "$cc_type"
3354 #define CC_VERSION $cc_version
3355 #define restrict $_restrict
3356 #define EXTERN_PREFIX "${extern_prefix}"
3357 #define EXTERN_ASM ${extern_prefix}
3358 #define SLIBSUF "$SLIBSUF"
3359 EOF
3360
3361 test -n "$malloc_prefix" &&
3362     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3363
3364 if enabled small || disabled optimizations; then
3365     echo "#undef  av_always_inline"  >> $TMPH
3366     if enabled small; then
3367         echo "#define av_always_inline inline"  >> $TMPH
3368     else
3369         echo "#define av_always_inline av_unused"  >> $TMPH
3370     fi
3371 fi
3372
3373 if enabled yasm; then
3374     append config_files $TMPASM
3375     printf '' >$TMPASM
3376 fi
3377
3378 print_config ARCH_   "$config_files" $ARCH_LIST
3379 print_config HAVE_   "$config_files" $HAVE_LIST
3380 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3381                                      $CONFIG_EXTRA      \
3382                                      $DECODER_LIST      \
3383                                      $ENCODER_LIST      \
3384                                      $HWACCEL_LIST      \
3385                                      $PARSER_LIST       \
3386                                      $BSF_LIST          \
3387                                      $DEMUXER_LIST      \
3388                                      $MUXER_LIST        \
3389                                      $FILTER_LIST       \
3390                                      $PROTOCOL_LIST     \
3391                                      $INDEV_LIST        \
3392                                      $OUTDEV_LIST       \
3393
3394 cat >>config.mak <<EOF
3395 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3396 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3397 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3398 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3399 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3400 EOF
3401
3402 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3403
3404 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3405 cp_if_changed $TMPH config.h
3406 touch .config
3407
3408 enabled yasm && cp_if_changed $TMPASM config.asm
3409
3410 cat > $TMPH <<EOF
3411 /* Generated by ffconf */
3412 #ifndef AVUTIL_AVCONFIG_H
3413 #define AVUTIL_AVCONFIG_H
3414 EOF
3415
3416 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3417
3418 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3419
3420 cp_if_changed $TMPH libavutil/avconfig.h
3421
3422 test -n "$WARNINGS" && printf "\n$WARNINGS"
3423
3424 # build pkg-config files
3425
3426 pkgconfig_generate(){
3427 name=$1
3428 shortname=${name#lib}${build_suffix}
3429 comment=$2
3430 version=$3
3431 libs=$4
3432 requires=$5
3433 enabled ${name#lib} || return 0
3434 mkdir -p $name
3435 cat <<EOF > $name/$name.pc
3436 prefix=$prefix
3437 exec_prefix=\${prefix}
3438 libdir=$libdir
3439 includedir=$incdir
3440
3441 Name: $name
3442 Description: $comment
3443 Version: $version
3444 Requires: $(enabled shared || echo $requires)
3445 Requires.private: $(enabled shared && echo $requires)
3446 Conflicts:
3447 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3448 Libs.private: $(enabled shared && echo $libs)
3449 Cflags: -I\${includedir}
3450 EOF
3451 cat <<EOF > $name/$name-uninstalled.pc
3452 prefix=
3453 exec_prefix=
3454 libdir=\${pcfiledir}
3455 includedir=${source_path}
3456
3457 Name: $name
3458 Description: $comment
3459 Version: $version
3460 Requires: $requires
3461 Conflicts:
3462 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3463 Cflags: -I\${includedir}
3464 EOF
3465 }
3466
3467 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3468 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3469 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3470 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3471 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3472 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3473 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"