b3af2e9c6b2b1008b5f18b5f500d847ed212b0b0
[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 PROGRAM_LIST="
907     avconv
908     avplay
909     avprobe
910     avserver
911     ffmpeg
912 "
913
914 CONFIG_LIST="
915     $COMPONENT_LIST
916     $PROGRAM_LIST
917     aandct
918     ac3dsp
919     avcodec
920     avdevice
921     avfilter
922     avformat
923     avisynth
924     bzlib
925     dct
926     doc
927     dwt
928     dxva2
929     fastdiv
930     fft
931     frei0r
932     gnutls
933     golomb
934     gpl
935     gray
936     h264chroma
937     h264dsp
938     h264pred
939     hardcoded_tables
940     huffman
941     libcdio
942     libdc1394
943     libdirac
944     libfaac
945     libfreetype
946     libgsm
947     libmp3lame
948     libnut
949     libopencore_amrnb
950     libopencore_amrwb
951     libopencv
952     libopenjpeg
953     libpulse
954     librtmp
955     libschroedinger
956     libspeex
957     libtheora
958     libvo_aacenc
959     libvo_amrwbenc
960     libvorbis
961     libvpx
962     libx264
963     libxavs
964     libxvid
965     lpc
966     lsp
967     mdct
968     memalign_hack
969     mlib
970     mpegaudiodsp
971     network
972     nonfree
973     openssl
974     pic
975     postproc
976     rdft
977     rtpdec
978     runtime_cpudetect
979     shared
980     sinewin
981     small
982     sram
983     static
984     swscale
985     swscale_alpha
986     thumb
987     vaapi
988     vda
989     vdpau
990     version3
991     x11grab
992     zlib
993 "
994
995 THREADS_LIST='
996     pthreads
997     w32threads
998 '
999
1000 ARCH_LIST='
1001     alpha
1002     arm
1003     avr32
1004     avr32_ap
1005     avr32_uc
1006     bfin
1007     ia64
1008     m68k
1009     mips
1010     mips64
1011     parisc
1012     ppc
1013     ppc64
1014     s390
1015     sh4
1016     sparc
1017     sparc64
1018     tomi
1019     x86
1020     x86_32
1021     x86_64
1022 '
1023
1024 ARCH_EXT_LIST='
1025     altivec
1026     amd3dnow
1027     amd3dnowext
1028     armv5te
1029     armv6
1030     armv6t2
1031     armvfp
1032     avx
1033     iwmmxt
1034     mmi
1035     mmx
1036     mmx2
1037     neon
1038     ppc4xx
1039     sse
1040     ssse3
1041     vfpv3
1042     vis
1043 '
1044
1045 HAVE_LIST_PUB='
1046     bigendian
1047     fast_unaligned
1048 '
1049
1050 HAVE_LIST="
1051     $ARCH_EXT_LIST
1052     $HAVE_LIST_PUB
1053     $THREADS_LIST
1054     aligned_stack
1055     alsa_asoundlib_h
1056     altivec_h
1057     arpa_inet_h
1058     asm_mod_y
1059     attribute_may_alias
1060     attribute_packed
1061     closesocket
1062     cmov
1063     dcbzl
1064     dev_bktr_ioctl_bt848_h
1065     dev_bktr_ioctl_meteor_h
1066     dev_ic_bt8xx_h
1067     dev_video_bktr_ioctl_bt848_h
1068     dev_video_meteor_ioctl_meteor_h
1069     dlfcn_h
1070     dlopen
1071     dos_paths
1072     ebp_available
1073     ebx_available
1074     exp2
1075     exp2f
1076     fast_64bit
1077     fast_clz
1078     fast_cmov
1079     fcntl
1080     fork
1081     getaddrinfo
1082     gethrtime
1083     GetProcessMemoryInfo
1084     GetProcessTimes
1085     getrusage
1086     gnu_as
1087     ibm_asm
1088     inet_aton
1089     inline_asm
1090     isatty
1091     ldbrx
1092     libdc1394_1
1093     libdc1394_2
1094     llrint
1095     llrintf
1096     local_aligned_16
1097     local_aligned_8
1098     localtime_r
1099     log2
1100     log2f
1101     loongson
1102     lrint
1103     lrintf
1104     lzo1x_999_compress
1105     machine_ioctl_bt848_h
1106     machine_ioctl_meteor_h
1107     malloc_h
1108     MapViewOfFile
1109     memalign
1110     mkstemp
1111     mmap
1112     poll_h
1113     posix_memalign
1114     round
1115     roundf
1116     sdl
1117     sdl_video_size
1118     setmode
1119     setrlimit
1120     sndio_h
1121     socklen_t
1122     soundcard_h
1123     strerror_r
1124     strptime
1125     strtok_r
1126     struct_addrinfo
1127     struct_ipv6_mreq
1128     struct_rusage_ru_maxrss
1129     struct_sockaddr_in6
1130     struct_sockaddr_sa_len
1131     struct_sockaddr_storage
1132     symver
1133     symver_asm_label
1134     symver_gnu_asm
1135     sys_mman_h
1136     sys_resource_h
1137     sys_select_h
1138     sys_soundcard_h
1139     sys_videoio_h
1140     threads
1141     trunc
1142     truncf
1143     vfp_args
1144     VirtualAlloc
1145     winsock2_h
1146     xform_asm
1147     xmm_clobbers
1148     yasm
1149 "
1150
1151 # options emitted with CONFIG_ prefix but not available on command line
1152 CONFIG_EXTRA="
1153     avutil
1154     gplv3
1155     lgplv3
1156 "
1157
1158 CMDLINE_SELECT="
1159     $ARCH_EXT_LIST
1160     $CONFIG_LIST
1161     $THREADS_LIST
1162     asm
1163     cross_compile
1164     debug
1165     extra_warnings
1166     logging
1167     optimizations
1168     symver
1169     yasm
1170 "
1171
1172 PATHS_LIST='
1173     bindir
1174     datadir
1175     incdir
1176     libdir
1177     mandir
1178     prefix
1179     shlibdir
1180 '
1181
1182 CMDLINE_SET="
1183     $PATHS_LIST
1184     ar
1185     arch
1186     as
1187     build_suffix
1188     cc
1189     cpu
1190     cross_prefix
1191     dep_cc
1192     extra_version
1193     host_cc
1194     host_cflags
1195     host_ldflags
1196     host_libs
1197     host_os
1198     ld
1199     logfile
1200     malloc_prefix
1201     nm
1202     optflags
1203     pkg_config
1204     samples
1205     sysinclude
1206     sysroot
1207     target_exec
1208     target_os
1209     target_path
1210 "
1211
1212 CMDLINE_APPEND="
1213     extra_cflags
1214 "
1215
1216 # code dependency declarations
1217
1218 # architecture extensions
1219
1220 armv5te_deps="arm"
1221 armv6_deps="arm"
1222 armv6t2_deps="arm"
1223 armvfp_deps="arm"
1224 iwmmxt_deps="arm"
1225 neon_deps="arm"
1226 vfpv3_deps="armvfp"
1227
1228 mmi_deps="mips"
1229
1230 altivec_deps="ppc"
1231 ppc4xx_deps="ppc"
1232
1233 vis_deps="sparc"
1234
1235 x86_64_suggest="cmov fast_cmov"
1236 amd3dnow_deps="mmx"
1237 amd3dnowext_deps="amd3dnow"
1238 mmx_deps="x86"
1239 mmx2_deps="mmx"
1240 sse_deps="mmx"
1241 ssse3_deps="sse"
1242 avx_deps="ssse3"
1243
1244 aligned_stack_if_any="ppc x86"
1245 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1246 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1247 fast_unaligned_if_any="armv6 ppc x86"
1248
1249 inline_asm_deps="!tms470"
1250 need_memalign="altivec neon sse"
1251
1252 symver_if_any="symver_asm_label symver_gnu_asm"
1253
1254 # subsystems
1255 dct_select="rdft"
1256 mdct_select="fft"
1257 rdft_select="fft"
1258 mpegaudiodsp_select="dct"
1259
1260 # decoders / encoders / hardware accelerators
1261 aac_decoder_select="mdct sinewin"
1262 aac_encoder_select="mdct sinewin"
1263 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1264 ac3_decoder_select="mdct ac3dsp ac3_parser"
1265 ac3_encoder_select="mdct ac3dsp"
1266 ac3_fixed_encoder_select="mdct ac3dsp"
1267 alac_encoder_select="lpc"
1268 amrnb_decoder_select="lsp"
1269 amrwb_decoder_select="lsp"
1270 atrac1_decoder_select="mdct sinewin"
1271 atrac3_decoder_select="mdct"
1272 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1273 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1274 cavs_decoder_select="golomb"
1275 cook_decoder_select="mdct sinewin"
1276 cscd_decoder_suggest="zlib"
1277 dca_decoder_select="mdct"
1278 dnxhd_encoder_select="aandct"
1279 dxa_decoder_select="zlib"
1280 eac3_decoder_select="ac3_decoder"
1281 eac3_encoder_select="mdct ac3dsp"
1282 eamad_decoder_select="aandct"
1283 eatgq_decoder_select="aandct"
1284 eatqi_decoder_select="aandct"
1285 ffv1_decoder_select="golomb"
1286 flac_decoder_select="golomb"
1287 flac_encoder_select="golomb lpc"
1288 flashsv_decoder_select="zlib"
1289 flashsv_encoder_select="zlib"
1290 flashsv2_decoder_select="zlib"
1291 flv_decoder_select="h263_decoder"
1292 flv_encoder_select="h263_encoder"
1293 fraps_decoder_select="huffman"
1294 h261_encoder_select="aandct"
1295 h263_decoder_select="h263_parser"
1296 h263_encoder_select="aandct"
1297 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1298 h263i_decoder_select="h263_decoder"
1299 h263p_encoder_select="h263_encoder"
1300 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1301 h264_dxva2_hwaccel_deps="dxva2api_h"
1302 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1303 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1304 h264_vda_hwaccel_select="vda h264_decoder"
1305 h264_vdpau_decoder_select="vdpau h264_decoder"
1306 imc_decoder_select="fft mdct sinewin"
1307 jpegls_decoder_select="golomb"
1308 jpegls_encoder_select="golomb"
1309 ljpeg_encoder_select="aandct"
1310 loco_decoder_select="golomb"
1311 mjpeg_encoder_select="aandct"
1312 mlp_decoder_select="mlp_parser"
1313 mp1_decoder_select="mpegaudiodsp"
1314 mp1float_decoder_select="mpegaudiodsp"
1315 mp2_decoder_select="mpegaudiodsp"
1316 mp2float_decoder_select="mpegaudiodsp"
1317 mp3_decoder_select="mpegaudiodsp"
1318 mp3adu_decoder_select="mpegaudiodsp"
1319 mp3adufloat_decoder_select="mpegaudiodsp"
1320 mp3float_decoder_select="mpegaudiodsp"
1321 mp3on4_decoder_select="mpegaudiodsp"
1322 mp3on4float_decoder_select="mpegaudiodsp"
1323 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1324 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1325 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1326 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1327 mpeg1video_encoder_select="aandct"
1328 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1329 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1330 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1331 mpeg2video_encoder_select="aandct"
1332 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1333 mpeg4_encoder_select="h263_encoder"
1334 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1335 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1336 msmpeg4v1_decoder_select="h263_decoder"
1337 msmpeg4v1_encoder_select="h263_encoder"
1338 msmpeg4v2_decoder_select="h263_decoder"
1339 msmpeg4v2_encoder_select="h263_encoder"
1340 msmpeg4v3_decoder_select="h263_decoder"
1341 msmpeg4v3_encoder_select="h263_encoder"
1342 nellymoser_decoder_select="mdct sinewin"
1343 nellymoser_encoder_select="mdct sinewin"
1344 png_decoder_select="zlib"
1345 png_encoder_select="zlib"
1346 qcelp_decoder_select="lsp"
1347 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1348 ra_144_encoder_select="lpc"
1349 rv10_decoder_select="h263_decoder"
1350 rv10_encoder_select="h263_encoder"
1351 rv20_decoder_select="h263_decoder"
1352 rv20_encoder_select="h263_encoder"
1353 rv30_decoder_select="golomb h264chroma h264pred"
1354 rv40_decoder_select="golomb h264chroma h264pred"
1355 shorten_decoder_select="golomb"
1356 sipr_decoder_select="lsp"
1357 snow_decoder_select="dwt"
1358 snow_encoder_select="aandct dwt"
1359 svq1_encoder_select="aandct"
1360 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1361 svq3_decoder_suggest="zlib"
1362 theora_decoder_select="vp3_decoder"
1363 tiff_decoder_suggest="zlib"
1364 tiff_encoder_suggest="zlib"
1365 truehd_decoder_select="mlp_decoder"
1366 tscc_decoder_select="zlib"
1367 twinvq_decoder_select="mdct lsp sinewin"
1368 vc1_decoder_select="h263_decoder h264chroma"
1369 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1370 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1371 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1372 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1373 vc1image_decoder_select="vc1_decoder"
1374 vorbis_decoder_select="mdct"
1375 vorbis_encoder_select="mdct"
1376 vp6_decoder_select="huffman"
1377 vp6a_decoder_select="vp6_decoder"
1378 vp6f_decoder_select="vp6_decoder"
1379 vp8_decoder_select="h264pred"
1380 wmapro_decoder_select="mdct sinewin"
1381 wmav1_decoder_select="mdct sinewin"
1382 wmav1_encoder_select="mdct sinewin"
1383 wmav2_decoder_select="mdct sinewin"
1384 wmav2_encoder_select="mdct sinewin"
1385 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1386 wmv1_decoder_select="h263_decoder"
1387 wmv1_encoder_select="h263_encoder"
1388 wmv2_decoder_select="h263_decoder"
1389 wmv2_encoder_select="h263_encoder"
1390 wmv3_decoder_select="vc1_decoder"
1391 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1392 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1393 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1394 wmv3image_decoder_select="wmv3_decoder"
1395 zlib_decoder_select="zlib"
1396 zlib_encoder_select="zlib"
1397 zmbv_decoder_select="zlib"
1398 zmbv_encoder_select="zlib"
1399
1400 vaapi_deps="va_va_h"
1401 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1402 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1403
1404 # parsers
1405 h264_parser_select="golomb h264chroma h264dsp h264pred"
1406
1407 # external libraries
1408 libdirac_decoder_deps="libdirac !libschroedinger"
1409 libdirac_encoder_deps="libdirac"
1410 libfaac_encoder_deps="libfaac"
1411 libgsm_decoder_deps="libgsm"
1412 libgsm_encoder_deps="libgsm"
1413 libgsm_ms_decoder_deps="libgsm"
1414 libgsm_ms_encoder_deps="libgsm"
1415 libmp3lame_encoder_deps="libmp3lame"
1416 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1417 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1418 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1419 libopenjpeg_decoder_deps="libopenjpeg"
1420 libschroedinger_decoder_deps="libschroedinger"
1421 libschroedinger_encoder_deps="libschroedinger"
1422 libspeex_decoder_deps="libspeex"
1423 libspeex_encoder_deps="libspeex"
1424 libtheora_encoder_deps="libtheora"
1425 libvo_aacenc_encoder_deps="libvo_aacenc"
1426 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1427 libvorbis_encoder_deps="libvorbis"
1428 libvpx_decoder_deps="libvpx"
1429 libvpx_encoder_deps="libvpx"
1430 libx264_encoder_deps="libx264"
1431 libxavs_encoder_deps="libxavs"
1432 libxvid_encoder_deps="libxvid"
1433
1434 # demuxers / muxers
1435 ac3_demuxer_select="ac3_parser"
1436 asf_stream_muxer_select="asf_muxer"
1437 avisynth_demuxer_deps="avisynth"
1438 dirac_demuxer_select="dirac_parser"
1439 eac3_demuxer_select="ac3_parser"
1440 flac_demuxer_select="flac_parser"
1441 ipod_muxer_select="mov_muxer"
1442 libnut_demuxer_deps="libnut"
1443 libnut_muxer_deps="libnut"
1444 matroska_audio_muxer_select="matroska_muxer"
1445 matroska_demuxer_suggest="zlib bzlib"
1446 mov_demuxer_suggest="zlib"
1447 mp3_demuxer_select="mpegaudio_parser"
1448 mp4_muxer_select="mov_muxer"
1449 mpegtsraw_demuxer_select="mpegts_demuxer"
1450 mxf_d10_muxer_select="mxf_muxer"
1451 ogg_demuxer_select="golomb"
1452 psp_muxer_select="mov_muxer"
1453 rtp_demuxer_select="sdp_demuxer"
1454 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1455 rtsp_demuxer_select="http_protocol rtpdec"
1456 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1457 sap_demuxer_select="sdp_demuxer"
1458 sap_muxer_select="rtp_muxer rtp_protocol"
1459 sdp_demuxer_select="rtpdec"
1460 spdif_muxer_select="aac_parser"
1461 tg2_muxer_select="mov_muxer"
1462 tgp_muxer_select="mov_muxer"
1463 w64_demuxer_deps="wav_demuxer"
1464
1465 # indevs / outdevs
1466 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1467 alsa_outdev_deps="alsa_asoundlib_h"
1468 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1469 dv1394_indev_deps="dv1394 dv_demuxer"
1470 fbdev_indev_deps="linux_fb_h"
1471 jack_indev_deps="jack_jack_h"
1472 libcdio_indev_deps="libcdio"
1473 libdc1394_indev_deps="libdc1394"
1474 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1475 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1476 pulse_indev_deps="libpulse"
1477 sndio_indev_deps="sndio_h"
1478 sndio_outdev_deps="sndio_h"
1479 v4l_indev_deps="linux_videodev_h"
1480 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1481 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1482 vfwcap_indev_extralibs="-lavicap32"
1483 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1484 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1485
1486 # protocols
1487 gopher_protocol_deps="network"
1488 httpproxy_protocol_deps="network"
1489 httpproxy_protocol_select="tcp_protocol"
1490 http_protocol_deps="network"
1491 http_protocol_select="tcp_protocol"
1492 https_protocol_select="tls_protocol"
1493 mmsh_protocol_select="http_protocol"
1494 mmst_protocol_deps="network"
1495 rtmp_protocol_select="tcp_protocol"
1496 rtp_protocol_select="udp_protocol"
1497 tcp_protocol_deps="network"
1498 tls_protocol_deps_any="openssl gnutls"
1499 tls_protocol_select="tcp_protocol"
1500 udp_protocol_deps="network"
1501
1502 # filters
1503 blackframe_filter_deps="gpl"
1504 boxblur_filter_deps="gpl"
1505 cropdetect_filter_deps="gpl"
1506 delogo_filter_deps="gpl"
1507 drawtext_filter_deps="libfreetype"
1508 frei0r_filter_deps="frei0r dlopen strtok_r"
1509 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1510 hqdn3d_filter_deps="gpl"
1511 ocv_filter_deps="libopencv"
1512 scale_filter_deps="swscale"
1513 yadif_filter_deps="gpl"
1514
1515 # libraries
1516 avdevice_deps="avcodec avformat"
1517 avformat_deps="avcodec"
1518 postproc_deps="gpl"
1519
1520 # programs
1521 avconv_deps="avcodec avformat swscale"
1522 avconv_select="buffer_filter"
1523 avplay_deps="avcodec avformat swscale sdl"
1524 avplay_select="rdft"
1525 avprobe_deps="avcodec avformat"
1526 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1527 avserver_extralibs='$ldl'
1528 ffmpeg_deps="avcodec avformat swscale"
1529 ffmpeg_select="buffer_filter"
1530
1531 doc_deps="texi2html"
1532
1533 # tests
1534
1535 test_deps(){
1536     suf1=$1
1537     suf2=$2
1538     shift 2
1539     for v; do
1540         dep=${v%=*}
1541         tests=${v#*=}
1542         for name in ${tests}; do
1543             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1544         done
1545     done
1546 }
1547
1548 mxf_d10_test_deps="avfilter"
1549 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1550
1551 test_deps _encoder _decoder                                             \
1552     adpcm_ima_qt                                                        \
1553     adpcm_ima_wav                                                       \
1554     adpcm_ms                                                            \
1555     adpcm_swf                                                           \
1556     adpcm_yamaha=adpcm_yam                                              \
1557     alac                                                                \
1558     asv1                                                                \
1559     asv2                                                                \
1560     bmp                                                                 \
1561     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1562     dvvideo="dv dv_411 dv50"                                            \
1563     ffv1                                                                \
1564     flac                                                                \
1565     flashsv                                                             \
1566     flv                                                                 \
1567     adpcm_g726=g726                                                     \
1568     gif                                                                 \
1569     h261                                                                \
1570     h263="h263 h263p"                                                   \
1571     huffyuv                                                             \
1572     jpegls                                                              \
1573     mjpeg="jpg mjpeg ljpeg"                                             \
1574     mp2                                                                 \
1575     mpeg1video="mpeg mpeg1b"                                            \
1576     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1577     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1578     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1579     mpeg4="mpeg4thread error rc"                                        \
1580     msmpeg4v3=msmpeg4                                                   \
1581     msmpeg4v2                                                           \
1582     pbm=pbmpipe                                                         \
1583     pcx                                                                 \
1584     pgm="pgm pgmpipe"                                                   \
1585     png                                                                 \
1586     ppm="ppm ppmpipe"                                                   \
1587     rawvideo="rgb yuv"                                                  \
1588     roq                                                                 \
1589     rv10                                                                \
1590     rv20                                                                \
1591     sgi                                                                 \
1592     snow="snow snowll"                                                  \
1593     svq1                                                                \
1594     targa=tga                                                           \
1595     tiff                                                                \
1596     wmav1                                                               \
1597     wmav2                                                               \
1598     wmv1                                                                \
1599     wmv2                                                                \
1600
1601 test_deps _muxer _demuxer                                               \
1602     aiff                                                                \
1603     pcm_alaw=alaw                                                       \
1604     asf                                                                 \
1605     au                                                                  \
1606     avi                                                                 \
1607     dv=dv_fmt                                                           \
1608     ffm                                                                 \
1609     flv=flv_fmt                                                         \
1610     gxf                                                                 \
1611     matroska=mkv                                                        \
1612     mmf                                                                 \
1613     mov                                                                 \
1614     pcm_mulaw=mulaw                                                     \
1615     mxf="mxf mxf_d10"                                                   \
1616     nut                                                                 \
1617     ogg                                                                 \
1618     rawvideo=pixfmt                                                     \
1619     rm                                                                  \
1620     swf                                                                 \
1621     mpegts=ts                                                           \
1622     voc                                                                 \
1623     wav                                                                 \
1624     yuv4mpegpipe=yuv4mpeg                                               \
1625
1626 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1627 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1628
1629 # default parameters
1630
1631 logfile="config.log"
1632
1633 # installation paths
1634 prefix_default="/usr/local"
1635 bindir_default='${prefix}/bin'
1636 datadir_default='${prefix}/share/avconv'
1637 incdir_default='${prefix}/include'
1638 libdir_default='${prefix}/lib'
1639 mandir_default='${prefix}/share/man'
1640 shlibdir_default="$libdir_default"
1641
1642 # toolchain
1643 ar_default="ar"
1644 cc_default="gcc"
1645 cc_version=\"unknown\"
1646 host_cc_default="gcc"
1647 ln_s="ln -sf"
1648 nm_default="nm"
1649 objformat="elf"
1650 pkg_config_default=pkg-config
1651 ranlib="ranlib"
1652 yasmexe="yasm"
1653
1654 nm_opts='-g'
1655 nogas=":"
1656
1657 # machine
1658 arch_default=$(uname -m)
1659 cpu="generic"
1660
1661 # OS
1662 target_os_default=$(tolower $(uname -s))
1663 host_os=$target_os_default
1664
1665 # configurable options
1666 enable $PROGRAM_LIST
1667
1668 enable avcodec
1669 enable avdevice
1670 enable avfilter
1671 enable avformat
1672 enable avutil
1673 enable postproc
1674 enable swscale
1675
1676 enable asm
1677 enable debug
1678 enable doc
1679 enable fastdiv
1680 enable network
1681 enable optimizations
1682 enable static
1683 enable swscale_alpha
1684
1685 # build settings
1686 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1687 AVSERVERLDFLAGS=-Wl,-E
1688 LIBPREF="lib"
1689 LIBSUF=".a"
1690 FULLNAME='$(NAME)$(BUILDSUF)'
1691 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1692 SLIBPREF="lib"
1693 SLIBSUF=".so"
1694 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1695 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1696 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1697 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1698 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1699 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1700
1701 AS_O='-o $@'
1702 CC_O='-o $@'
1703
1704 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1705 host_libs='-lm'
1706
1707 target_path='$(CURDIR)'
1708
1709 # since the object filename is not given with the -MM flag, the compiler
1710 # is only able to print the basename, and we must add the path ourselves
1711 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1712 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1713
1714 # find source path
1715 if test -f configure; then
1716     source_path=.
1717 else
1718     source_path=$(cd $(dirname "$0"); pwd)
1719     echo "$source_path" | grep -q '[[:blank:]]' &&
1720         die "Out of tree builds are impossible with whitespace in source path."
1721     test -e "$source_path/config.h" &&
1722         die "Out of tree builds are impossible with config.h in source dir."
1723 fi
1724
1725 for v in "$@"; do
1726     r=${v#*=}
1727     l=${v%"$r"}
1728     r=$(sh_quote "$r")
1729     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1730 done
1731
1732 find_things(){
1733     thing=$1
1734     pattern=$2
1735     file=$source_path/$3
1736     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1737 }
1738
1739 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1740 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1741 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1742 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1743 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1744 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1745 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1746 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1747 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1748 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1749 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1750
1751 find_tests(){
1752     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1753 }
1754
1755 ACODEC_TESTS=$(find_tests acodec)
1756 VCODEC_TESTS=$(find_tests vsynth1)
1757 LAVF_TESTS=$(find_tests lavf)
1758 LAVFI_TESTS=$(find_tests lavfi)
1759 SEEK_TESTS=$(find_tests seek seek_)
1760
1761 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1762
1763 for n in $COMPONENT_LIST; do
1764     v=$(toupper ${n%s})_LIST
1765     eval enable \$$v
1766     eval ${n}_if_any="\$$v"
1767 done
1768
1769 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1770
1771 die_unknown(){
1772     echo "Unknown option \"$1\"."
1773     echo "See $0 --help for available options."
1774     exit 1
1775 }
1776
1777 show_list() {
1778     suffix=_$1
1779     shift
1780     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1781     exit 0
1782 }
1783
1784 for opt do
1785     optval="${opt#*=}"
1786     case "$opt" in
1787     --extra-ldflags=*) add_ldflags $optval
1788     ;;
1789     --extra-libs=*) add_extralibs $optval
1790     ;;
1791     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1792     ;;
1793     --enable-debug=*) debuglevel="$optval"
1794     ;;
1795     --disable-everything)
1796     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1797     ;;
1798     --enable-*=*|--disable-*=*)
1799     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1800     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1801     eval list=\$$(toupper $thing)_LIST
1802     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1803     $action $(filter "$name" $list)
1804     ;;
1805     --enable-?*|--disable-?*)
1806     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1807     if is_in $option $COMPONENT_LIST; then
1808         test $action = disable && action=unset
1809         eval $action \$$(toupper ${option%s})_LIST
1810     elif is_in $option $CMDLINE_SELECT; then
1811         $action $option
1812     else
1813         die_unknown $opt
1814     fi
1815     ;;
1816     --list-*)
1817         NAME="${opt#--list-}"
1818         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1819         NAME=${NAME%s}
1820         eval show_list $NAME \$$(toupper $NAME)_LIST
1821     ;;
1822     --help|-h) show_help
1823     ;;
1824     *)
1825     optname="${opt%%=*}"
1826     optname="${optname#--}"
1827     optname=$(echo "$optname" | sed 's/-/_/g')
1828     if is_in $optname $CMDLINE_SET; then
1829         eval $optname='$optval'
1830     elif is_in $optname $CMDLINE_APPEND; then
1831         append $optname "$optval"
1832     else
1833          die_unknown $opt
1834     fi
1835     ;;
1836     esac
1837 done
1838
1839 disabled logging && logfile=/dev/null
1840
1841 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1842 set >> $logfile
1843
1844 test -n "$cross_prefix" && enable cross_compile
1845
1846 if enabled cross_compile; then
1847     test -n "$arch" && test -n "$target_os" ||
1848         die "Must specify target arch and OS when cross-compiling"
1849 fi
1850
1851 set_default arch target_os
1852
1853 ar_default="${cross_prefix}${ar_default}"
1854 cc_default="${cross_prefix}${cc_default}"
1855 nm_default="${cross_prefix}${nm_default}"
1856 pkg_config_default="${cross_prefix}${pkg_config_default}"
1857 ranlib="${cross_prefix}${ranlib}"
1858
1859 sysinclude_default="${sysroot}/usr/include"
1860
1861 set_default cc nm pkg_config sysinclude
1862 enabled cross_compile || host_cc_default=$cc
1863 set_default host_cc
1864
1865 if ! $pkg_config --version >/dev/null 2>&1; then
1866     warn "$pkg_config not found, library detection may fail."
1867     pkg_config=false
1868 fi
1869
1870 exesuf() {
1871     case $1 in
1872         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1873     esac
1874 }
1875
1876 EXESUF=$(exesuf $target_os)
1877 HOSTEXESUF=$(exesuf $host_os)
1878
1879 # set temporary file name
1880 : ${TMPDIR:=$TEMPDIR}
1881 : ${TMPDIR:=$TMP}
1882 : ${TMPDIR:=/tmp}
1883
1884 if ! check_cmd mktemp -u XXXXXX; then
1885     # simple replacement for missing mktemp
1886     # NOT SAFE FOR GENERAL USE
1887     mktemp(){
1888         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1889     }
1890 fi
1891
1892 tmpfile(){
1893     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1894         (set -C; exec > $tmp) 2>/dev/null ||
1895         die "Unable to create temporary file in $TMPDIR."
1896     append TMPFILES $tmp
1897     eval $1=$tmp
1898 }
1899
1900 trap 'rm -f -- $TMPFILES' EXIT
1901
1902 tmpfile TMPASM .asm
1903 tmpfile TMPC   .c
1904 tmpfile TMPE   $EXESUF
1905 tmpfile TMPH   .h
1906 tmpfile TMPO   .o
1907 tmpfile TMPS   .S
1908 tmpfile TMPSH  .sh
1909 tmpfile TMPV   .ver
1910
1911 unset -f mktemp
1912
1913 chmod +x $TMPE
1914
1915 # make sure we can execute files in $TMPDIR
1916 cat > $TMPSH 2>> $logfile <<EOF
1917 #! /bin/sh
1918 EOF
1919 chmod +x $TMPSH >> $logfile 2>&1
1920 if ! $TMPSH >> $logfile 2>&1; then
1921     cat <<EOF
1922 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1923 variable to another directory and make sure that it is not mounted noexec.
1924 EOF
1925     die "Sanity test failed."
1926 fi
1927
1928 filter_asflags=echo
1929 filter_cflags=echo
1930 filter_cppflags=echo
1931
1932 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1933     cc_type=llvm_gcc
1934     cc_version=__VERSION__
1935     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1936     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1937     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1938     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1939     speed_cflags='-O3'
1940     size_cflags='-Os'
1941 elif $cc -v 2>&1 | grep -qi ^gcc; then
1942     cc_type=gcc
1943     cc_version=__VERSION__
1944     gcc_version=$($cc --version | head -n1)
1945     gcc_basever=$($cc -dumpversion)
1946     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1947     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1948     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1949     if ! $cc -dumpversion | grep -q '^2\.'; then
1950         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1951         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1952     fi
1953     speed_cflags='-O3'
1954     size_cflags='-Os'
1955 elif $cc --version 2>/dev/null | grep -q Intel; then
1956     cc_type=icc
1957     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1958     cc_ident=$($cc --version | head -n1)
1959     icc_version=$($cc -dumpversion)
1960     CC_DEPFLAGS='-MMD'
1961     AS_DEPFLAGS='-MMD'
1962     speed_cflags='-O3'
1963     size_cflags='-Os'
1964     noopt_cflags='-O1'
1965 elif $cc -v 2>&1 | grep -q xlc; then
1966     cc_type=xlc
1967     cc_version="AV_STRINGIFY(__IBMC__)"
1968     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1969     speed_cflags='-O5'
1970     size_cflags='-O5 -qcompact'
1971 elif $cc -V 2>/dev/null | grep -q Compaq; then
1972     cc_type=ccc
1973     cc_version="AV_STRINGIFY(__DECC_VER)"
1974     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1975     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1976     debuglevel=3
1977     add_ldflags -Wl,-z,now # calls to libots crash without this
1978     speed_cflags='-fast'
1979     size_cflags='-O1'
1980 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1981     test -d "$sysroot" || die "No valid sysroot specified."
1982     cc_type=armcc
1983     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1984     cc_ident=$($cc --vsn | head -n1)
1985     armcc_conf="$PWD/armcc.conf"
1986     $cc --arm_linux_configure                 \
1987         --arm_linux_config_file="$armcc_conf" \
1988         --configure_sysroot="$sysroot"        \
1989         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1990         die "Error creating armcc configuration file."
1991     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1992     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1993     as_default="${cross_prefix}gcc"
1994     CC_DEPFLAGS='-MMD'
1995     AS_DEPFLAGS='-MMD'
1996     speed_cflags='-O3'
1997     size_cflags='-Os'
1998     filter_asflags="filter_out -W${armcc_opt}*"
1999 elif $cc -version 2>/dev/null | grep -q TMS470; then
2000     cc_type=tms470
2001     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2002     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2003     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2004     CC_O='-fr=$(@D)'
2005     as_default="${cross_prefix}gcc"
2006     ld_default="${cross_prefix}gcc"
2007     TMPO=$(basename $TMPC .c).o
2008     append TMPFILES $TMPO
2009     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2010     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2011     AS_DEPFLAGS='-MMD'
2012     speed_cflags='-O3 -mf=5'
2013     size_cflags='-O3 -mf=2'
2014     filter_cflags=tms470_flags
2015     tms470_flags(){
2016         for flag; do
2017             case $flag in
2018                 -march=*|-mcpu=*)
2019                     case "${flag#*=}" in
2020                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2021                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2022                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2023                         armv6*|arm11*)          echo -mv=6   ;;
2024                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2025                                                 echo -mv=5e  ;;
2026                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2027                     esac
2028                     ;;
2029                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2030                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2031                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2032                 -msoft-float)   echo --float_support=vfplib       ;;
2033                 -O[0-3]|-mf=*)  echo $flag                        ;;
2034                 -g)             echo -g -mn                       ;;
2035                 -pds=*)         echo $flag                        ;;
2036             esac
2037         done
2038     }
2039 elif $cc -v 2>&1 | grep -q clang; then
2040     cc_type=clang
2041     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2042         cc_version=__clang_version__ || cc_version=__VERSION__
2043     cc_ident=$($cc --version | head -n1)
2044     CC_DEPFLAGS='-MMD'
2045     AS_DEPFLAGS='-MMD'
2046     speed_cflags='-O3'
2047     size_cflags='-Os'
2048 elif $cc -V 2>&1 | grep -q Sun; then
2049     cc_type=suncc
2050     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2051     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2052     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2053     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2054     add_ldflags -xc99
2055     speed_cflags='-O5'
2056     size_cflags='-O5 -xspace'
2057     filter_cflags=suncc_flags
2058     suncc_flags(){
2059         for flag; do
2060             case $flag in
2061                 -march=*|-mcpu=*)
2062                     case "${flag#*=}" in
2063                         native)                   echo -xtarget=native       ;;
2064                         v9|niagara)               echo -xarch=sparc          ;;
2065                         ultrasparc)               echo -xarch=sparcvis       ;;
2066                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2067                         i586|pentium)             echo -xchip=pentium        ;;
2068                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2069                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2070                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2071                         pentium4*)          echo -xtarget=pentium4           ;;
2072                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2073                         *-sse3)             echo -xarch=sse3                 ;;
2074                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2075                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2076                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2077                         k8|opteron|athlon64|athlon-fx)
2078                                                   echo -xarch=sse2a          ;;
2079                         athlon*)                  echo -xarch=pentium_proa   ;;
2080                     esac
2081                     ;;
2082                 -std=c99)             echo -xc99              ;;
2083                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2084                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2085                 -W*,*)                echo $flag              ;;
2086                 -f*-*|-W*)                                    ;;
2087                 *)                    echo $flag              ;;
2088             esac
2089         done
2090     }
2091 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2092     cc_type=pathscale
2093     cc_version=__PATHSCALE__
2094     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2095     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2096     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2097     speed_cflags='-O2'
2098     size_cflags='-Os'
2099     filter_cflags='filter_out -Wdisabled-optimization'
2100 elif $cc -v 2>&1 | grep -q Open64; then
2101     cc_type=open64
2102     cc_version=__OPEN64__
2103     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2104     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2105     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2106     speed_cflags='-O2'
2107     size_cflags='-Os'
2108     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2109 fi
2110
2111 test -n "$cc_type" && enable $cc_type ||
2112     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2113
2114 : ${as_default:=$cc}
2115 : ${dep_cc_default:=$cc}
2116 : ${ld_default:=$cc}
2117 set_default ar as dep_cc ld
2118
2119 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2120 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2121
2122 add_cflags $extra_cflags
2123 add_asflags $extra_cflags
2124
2125 if test -n "$sysroot"; then
2126     case "$cc_type" in
2127         gcc|llvm_gcc|clang)
2128             add_cppflags --sysroot="$sysroot"
2129             add_ldflags --sysroot="$sysroot"
2130         ;;
2131         tms470)
2132             add_cppflags -I"$sysinclude"
2133             add_ldflags  --sysroot="$sysroot"
2134         ;;
2135     esac
2136 fi
2137
2138 if test "$cpu" = host; then
2139     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2140
2141     case "$cc_type" in
2142         gcc|llvm_gcc)
2143             check_native(){
2144                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2145                 sed -n "/cc1.*$1=/{
2146                             s/.*$1=\\([^ ]*\\).*/\\1/
2147                             p
2148                             q
2149                         }" $TMPE
2150             }
2151             cpu=$(check_native -march || check_native -mcpu)
2152         ;;
2153     esac
2154
2155     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2156 fi
2157
2158 # Deal with common $arch aliases
2159 case "$arch" in
2160     arm*)
2161         arch="arm"
2162     ;;
2163     mips|mipsel|IP*)
2164         arch="mips"
2165     ;;
2166     mips64*)
2167         arch="mips"
2168         subarch="mips64"
2169     ;;
2170     parisc|hppa)
2171         arch="parisc"
2172     ;;
2173     parisc64|hppa64)
2174         arch="parisc"
2175         subarch="parisc64"
2176     ;;
2177     "Power Macintosh"|ppc|powerpc)
2178         arch="ppc"
2179     ;;
2180     ppc64|powerpc64)
2181         arch="ppc"
2182         subarch="ppc64"
2183     ;;
2184     s390|s390x)
2185         arch="s390"
2186     ;;
2187     sh4|sh)
2188         arch="sh4"
2189     ;;
2190     sun4u|sparc64)
2191         arch="sparc"
2192         subarch="sparc64"
2193     ;;
2194     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2195         arch="x86"
2196     ;;
2197 esac
2198
2199 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2200 enable $arch
2201
2202 # Add processor-specific flags
2203 if test "$cpu" = generic; then
2204     : do nothing
2205 elif enabled ppc; then
2206
2207     case $(tolower $cpu) in
2208         601|ppc601|powerpc601)
2209             cpuflags="-mcpu=601"
2210             disable altivec
2211         ;;
2212         603*|ppc603*|powerpc603*)
2213             cpuflags="-mcpu=603"
2214             disable altivec
2215         ;;
2216         604*|ppc604*|powerpc604*)
2217             cpuflags="-mcpu=604"
2218             disable altivec
2219         ;;
2220         g3|75*|ppc75*|powerpc75*)
2221             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2222             disable altivec
2223         ;;
2224         g4|745*|ppc745*|powerpc745*)
2225             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2226         ;;
2227         74*|ppc74*|powerpc74*)
2228             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2229         ;;
2230         g5|970|ppc970|powerpc970|power4*)
2231             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2232         ;;
2233         cell)
2234             cpuflags="-mcpu=cell"
2235             enable ldbrx
2236         ;;
2237         e500v2)
2238             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2239             disable altivec
2240         ;;
2241         e500)
2242             cpuflags="-mcpu=8540 -mhard-float"
2243             disable altivec
2244         ;;
2245     esac
2246
2247 elif enabled x86; then
2248
2249     case $cpu in
2250         i[345]86|pentium)
2251             cpuflags="-march=$cpu"
2252             disable mmx
2253         ;;
2254         # targets that do NOT support conditional mov (cmov)
2255         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2256             cpuflags="-march=$cpu"
2257             disable cmov
2258         ;;
2259         # targets that do support conditional mov (cmov)
2260         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2261             cpuflags="-march=$cpu"
2262             enable cmov
2263             enable fast_cmov
2264         ;;
2265         # targets that do support conditional mov but on which it's slow
2266         pentium4|pentium4m|prescott|nocona)
2267             cpuflags="-march=$cpu"
2268             enable cmov
2269             disable fast_cmov
2270         ;;
2271     esac
2272
2273 elif enabled sparc; then
2274
2275     case $cpu in
2276         niagara)
2277             cpuflags="-mcpu=$cpu"
2278             disable vis
2279         ;;
2280         sparc64)
2281             cpuflags="-mcpu=v9"
2282         ;;
2283     esac
2284
2285 elif enabled arm; then
2286
2287     case $cpu in
2288         armv*)
2289             cpuflags="-march=$cpu"
2290             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2291         ;;
2292         *)
2293             cpuflags="-mcpu=$cpu"
2294             case $cpu in
2295                 cortex-a*)                               subarch=armv7a  ;;
2296                 cortex-r*)                               subarch=armv7r  ;;
2297                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2298                 arm11*)                                  subarch=armv6   ;;
2299                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2300                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2301             esac
2302         ;;
2303     esac
2304
2305 elif enabled alpha; then
2306
2307     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2308
2309 elif enabled bfin; then
2310
2311     cpuflags="-mcpu=$cpu"
2312
2313 elif enabled mips; then
2314
2315     cpuflags="-march=$cpu"
2316
2317 elif enabled avr32; then
2318
2319     case $cpu in
2320         ap7[02]0[0-2])
2321             subarch="avr32_ap"
2322             cpuflags="-mpart=$cpu"
2323         ;;
2324         ap)
2325             subarch="avr32_ap"
2326             cpuflags="-march=$cpu"
2327         ;;
2328         uc3[ab]*)
2329             subarch="avr32_uc"
2330             cpuflags="-mcpu=$cpu"
2331         ;;
2332         uc)
2333             subarch="avr32_uc"
2334             cpuflags="-march=$cpu"
2335         ;;
2336     esac
2337
2338 fi
2339
2340 add_cflags $cpuflags
2341 add_asflags $cpuflags
2342
2343 # compiler sanity check
2344 check_exec <<EOF
2345 int main(void){ return 0; }
2346 EOF
2347 if test "$?" != 0; then
2348     echo "$cc is unable to create an executable file."
2349     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2350         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2351         echo "Only do this if you know what cross compiling means."
2352     fi
2353     die "C compiler test failed."
2354 fi
2355
2356 add_cppflags -D_ISOC99_SOURCE
2357 check_cflags -std=c99
2358 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2359 #include <stdlib.h>
2360 EOF
2361 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2362 #include <stdlib.h>
2363 EOF
2364
2365 check_host_cflags -std=c99
2366 check_host_cflags -Wall
2367
2368 case "$arch" in
2369     alpha|ia64|mips|parisc|sparc)
2370         spic=$shared
2371     ;;
2372     x86)
2373         subarch="x86_32"
2374         check_cc <<EOF && subarch="x86_64"
2375         int test[(int)sizeof(char*) - 7];
2376 EOF
2377         if test "$subarch" = "x86_64"; then
2378             spic=$shared
2379         fi
2380     ;;
2381 esac
2382
2383 enable $subarch
2384 enabled spic && enable pic
2385
2386 # OS specific
2387 case $target_os in
2388     haiku)
2389         prefix_default="/boot/common"
2390         network_extralibs="-lnetwork"
2391         host_libs=
2392         ;;
2393     sunos)
2394         AVSERVERLDFLAGS=""
2395         SHFLAGS='-shared -Wl,-h,$$(@F)'
2396         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2397         network_extralibs="-lsocket -lnsl"
2398         add_cppflags -D__EXTENSIONS__
2399         # When using suncc to build, the Solaris linker will mark
2400         # an executable with each instruction set encountered by
2401         # the Solaris assembler.  As our libraries contain their own
2402         # guards for processor-specific code, instead suppress
2403         # generation of the HWCAPS ELF section on Solaris x86 only.
2404         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2405         nm_opts='-P -g'
2406         ;;
2407     netbsd)
2408         disable symver
2409         oss_indev_extralibs="-lossaudio"
2410         oss_outdev_extralibs="-lossaudio"
2411         ;;
2412     openbsd)
2413         enable malloc_aligned
2414         # On OpenBSD 4.5. the compiler does not use PIC unless
2415         # explicitly using -fPIC. Libav builds fine without PIC,
2416         # however the generated executable will not do anything
2417         # (simply quits with exit-code 1, no crash, no output).
2418         # Thus explicitly enable PIC here.
2419         enable pic
2420         disable symver
2421         SHFLAGS='-shared'
2422         oss_indev_extralibs="-lossaudio"
2423         oss_outdev_extralibs="-lossaudio"
2424         ;;
2425     dragonfly)
2426         enable malloc_aligned
2427         disable symver
2428         ;;
2429     freebsd)
2430         enable malloc_aligned
2431         ;;
2432     bsd/os)
2433         add_extralibs -lpoll -lgnugetopt
2434         ;;
2435     darwin)
2436         enable malloc_aligned
2437         gas="gas-preprocessor.pl $cc"
2438         enabled ppc && add_asflags -force_cpusubtype_ALL
2439         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2440         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2441         add_ldflags -Wl,-dynamic,-search_paths_first
2442         SLIBSUF=".dylib"
2443         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2444         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2445         AVSERVERLDFLAGS=-Wl,-bind_at_load
2446         objformat="macho"
2447         enabled x86_64 && objformat="macho64"
2448         enabled_any pic shared ||
2449             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2450         ;;
2451     mingw32*)
2452         if test $target_os = "mingw32ce"; then
2453             disable network
2454         else
2455             target_os=mingw32
2456         fi
2457         LIBTARGET=i386
2458         if enabled x86_64; then
2459             enable malloc_aligned
2460             LIBTARGET="i386:x86-64"
2461         elif enabled arm; then
2462             LIBTARGET=arm-wince
2463         fi
2464         shlibdir_default="$bindir_default"
2465         SLIBPREF=""
2466         SLIBSUF=".dll"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2469         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2470         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2471         SLIB_INSTALL_LINKS=
2472         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2473         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2474         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'
2475         objformat="win32"
2476         dlltool="${cross_prefix}dlltool"
2477         enable dos_paths
2478         check_cflags -fno-common
2479         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2480                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2481                 die "ERROR: MinGW runtime version must be >= 3.15."
2482         add_cppflags -U__STRICT_ANSI__
2483         ;;
2484     cygwin*)
2485         target_os=cygwin
2486         shlibdir_default="$bindir_default"
2487         SLIBPREF="cyg"
2488         SLIBSUF=".dll"
2489         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2490         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2491         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2492         objformat="win32"
2493         enable dos_paths
2494         check_cflags -fno-common
2495         add_cppflags -U__STRICT_ANSI__
2496         ;;
2497     *-dos|freedos|opendos)
2498         network_extralibs="-lsocket"
2499         objformat="coff"
2500         enable dos_paths
2501         add_cppflags -U__STRICT_ANSI__
2502         ;;
2503     linux)
2504         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2505         enable dv1394
2506         ;;
2507     irix*)
2508         target_os=irix
2509         ranlib="echo ignoring ranlib"
2510         ;;
2511     os/2*)
2512         ln_s="cp -f"
2513         objformat="aout"
2514         add_cppflags -D_GNU_SOURCE
2515         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2516         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2517         AVSERVERLDFLAGS=""
2518         LIBSUF="_s.a"
2519         SLIBPREF=""
2520         SLIBSUF=".dll"
2521         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2522         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2523         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2524           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2525           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2526           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2527           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2528           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2529         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2530           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2531         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2532         enable dos_paths
2533         ;;
2534     gnu/kfreebsd)
2535         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2536         ;;
2537     gnu)
2538         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2539         ;;
2540     qnx)
2541         add_cppflags -D_QNX_SOURCE
2542         network_extralibs="-lsocket"
2543         ;;
2544     symbian)
2545         SLIBSUF=".dll"
2546         enable dos_paths
2547         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2548         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2549         add_ldflags -Wl,--target1-abs,--no-undefined \
2550                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2551                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2552         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2553                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2554                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2555         ;;
2556     none)
2557         ;;
2558     *)
2559         die "Unknown OS '$target_os'."
2560         ;;
2561 esac
2562
2563 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2564
2565 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2566
2567 set_default $PATHS_LIST
2568
2569 # we need to build at least one lib type
2570 if ! enabled_any static shared; then
2571     cat <<EOF
2572 At least one library type must be built.
2573 Specify --enable-static to build the static libraries or --enable-shared to
2574 build the shared libraries as well. To only build the shared libraries specify
2575 --disable-static in addition to --enable-shared.
2576 EOF
2577     exit 1;
2578 fi
2579
2580 die_license_disabled() {
2581     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2582 }
2583
2584 die_license_disabled gpl libcdio
2585 die_license_disabled gpl libx264
2586 die_license_disabled gpl libxavs
2587 die_license_disabled gpl libxvid
2588 die_license_disabled gpl x11grab
2589
2590 die_license_disabled nonfree libfaac
2591 die_license_disabled nonfree openssl
2592
2593 die_license_disabled version3 libopencore_amrnb
2594 die_license_disabled version3 libopencore_amrwb
2595 die_license_disabled version3 libvo_aacenc
2596 die_license_disabled version3 libvo_amrwbenc
2597
2598 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2599
2600 disabled optimizations || check_cflags -fomit-frame-pointer
2601
2602 enable_pic() {
2603     enable pic
2604     add_cppflags -DPIC
2605     add_cflags   -fPIC
2606     add_asflags  -fPIC
2607 }
2608
2609 enabled pic && enable_pic
2610
2611 check_cc <<EOF || die "Symbol mangling check failed."
2612 int ff_extern;
2613 EOF
2614 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2615 extern_prefix=${sym%%ff_extern*}
2616
2617 check_cc <<EOF && enable inline_asm
2618 void foo(void) { __asm__ volatile ("" ::); }
2619 EOF
2620
2621 _restrict=
2622 for restrict_keyword in restrict __restrict__ __restrict; do
2623     check_cc <<EOF && _restrict=$restrict_keyword && break
2624 void foo(char * $restrict_keyword p);
2625 EOF
2626 done
2627
2628 check_cc <<EOF && enable attribute_packed
2629 struct { int x; } __attribute__((packed)) x;
2630 EOF
2631
2632 check_cc <<EOF && enable attribute_may_alias
2633 union { int x; } __attribute__((may_alias)) x;
2634 EOF
2635
2636 check_cc <<EOF || die "endian test failed"
2637 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2638 EOF
2639 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2640
2641 if enabled alpha; then
2642
2643     check_cflags -mieee
2644
2645 elif enabled arm; then
2646
2647     enabled thumb && check_cflags -mthumb || check_cflags -marm
2648     nogas=die
2649
2650     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2651         enable vfp_args
2652     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2653         case "${cross_prefix:-$cc}" in
2654             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2655             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2656 __asm__ (".eabi_attribute 28, 1");
2657 int main(void) { return 0; }
2658 EOF
2659         esac
2660         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2661     fi
2662
2663     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2664     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2665     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2666     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2667     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2668     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2669     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2670
2671     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2672
2673     enabled_all armv6t2 shared !pic && enable_pic
2674
2675 elif enabled mips; then
2676
2677     check_asm loongson '"dmult.g $1, $2, $3"'
2678     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2679
2680 elif enabled ppc; then
2681
2682     enable local_aligned_8 local_aligned_16
2683
2684     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2685     check_asm ibm_asm   '"add 0, 0, 0"'
2686     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2687     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2688
2689     # AltiVec flags: The FSF version of GCC differs from the Apple version
2690     if enabled altivec; then
2691         nogas=warn
2692         check_cflags -maltivec -mabi=altivec &&
2693         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2694         check_cflags -faltivec
2695
2696         # check if our compiler supports Motorola AltiVec C API
2697         check_cc <<EOF || disable altivec
2698 $inc_altivec_h
2699 int main(void) {
2700     vector signed int v1, v2, v3;
2701     v1 = vec_add(v2,v3);
2702     return 0;
2703 }
2704 EOF
2705
2706         # check if our compiler supports braces for vector declarations
2707         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2708 $inc_altivec_h
2709 int main (void) { (vector int) {1}; return 0; }
2710 EOF
2711     fi
2712
2713 elif enabled sparc; then
2714
2715     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2716         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2717
2718 elif enabled x86; then
2719
2720     enable local_aligned_8 local_aligned_16
2721
2722     # check whether EBP is available on x86
2723     # As 'i' is stored on the stack, this program will crash
2724     # if the base pointer is used to access it because the
2725     # base pointer is cleared in the inline assembly code.
2726     check_exec_crash <<EOF && enable ebp_available
2727     volatile int i=0;
2728     __asm__ volatile (
2729         "xorl %%ebp, %%ebp"
2730     ::: "%ebp");
2731     return i;
2732 EOF
2733
2734     # check whether EBX is available on x86
2735     check_asm ebx_available '""::"b"(0)' &&
2736         check_asm ebx_available '"":::"%ebx"'
2737
2738     # check whether xmm clobbers are supported
2739     check_asm xmm_clobbers '"":::"%xmm0"'
2740
2741     # check whether binutils is new enough to compile SSSE3/MMX2
2742     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2743     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2744
2745     if ! disabled_any asm mmx yasm; then
2746         if check_cmd $yasmexe --version; then
2747             enabled x86_64 && yasm_extra="-m amd64"
2748             yasm_debug="-g dwarf2"
2749         elif check_cmd nasm -v; then
2750             yasmexe=nasm
2751             yasm_debug="-g -F dwarf"
2752             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2753         fi
2754
2755         YASMFLAGS="-f $objformat $yasm_extra"
2756         enabled pic               && append YASMFLAGS "-DPIC"
2757         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2758         case "$objformat" in
2759             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2760         esac
2761
2762         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2763             die "yasm not found, use --disable-yasm for a crippled build"
2764         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2765     fi
2766
2767     case "$cpu" in
2768         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2769             disable fast_clz
2770         ;;
2771     esac
2772
2773 fi
2774
2775 if enabled asm; then
2776     as=${gas:=$as}
2777     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2778         $nogas "GNU assembler not found, install gas-preprocessor"
2779 fi
2780
2781 check_ldflags -Wl,--as-needed
2782
2783 if check_func dlopen; then
2784     ldl=
2785 elif check_func dlopen -ldl; then
2786     ldl=-ldl
2787 fi
2788
2789 if enabled network; then
2790     check_type "sys/types.h sys/socket.h" socklen_t
2791     check_type netdb.h "struct addrinfo"
2792     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2793     check_type netinet/in.h "struct sockaddr_in6"
2794     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2795     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2796     # Prefer arpa/inet.h over winsock2
2797     if check_header arpa/inet.h ; then
2798         check_func closesocket
2799     elif check_header winsock2.h ; then
2800         check_func_headers winsock2.h closesocket -lws2 && \
2801             network_extralibs="-lws2" || \
2802         { check_func_headers winsock2.h closesocket -lws2_32 && \
2803             network_extralibs="-lws2_32"; }
2804         check_type ws2tcpip.h socklen_t
2805         check_type ws2tcpip.h "struct addrinfo"
2806         check_type ws2tcpip.h "struct ipv6_mreq"
2807         check_type ws2tcpip.h "struct sockaddr_in6"
2808         check_type ws2tcpip.h "struct sockaddr_storage"
2809         check_struct winsock2.h "struct sockaddr" sa_len
2810     else
2811         disable network
2812     fi
2813 fi
2814
2815 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2816 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2817
2818 check_func  fcntl
2819 check_func  fork
2820 check_func  getaddrinfo $network_extralibs
2821 check_func  gethrtime
2822 check_func  getrusage
2823 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2824 check_func  inet_aton $network_extralibs
2825 check_func  isatty
2826 check_func  localtime_r
2827 check_func  ${malloc_prefix}memalign            && enable memalign
2828 check_func  mkstemp
2829 check_func  mmap
2830 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2831 check_func  setrlimit
2832 check_func  strerror_r
2833 check_func  strptime
2834 check_func  strtok_r
2835 check_func_headers io.h setmode
2836 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2837 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2838 check_func_headers windows.h GetProcessTimes
2839 check_func_headers windows.h MapViewOfFile
2840 check_func_headers windows.h VirtualAlloc
2841
2842 check_header dlfcn.h
2843 check_header dxva2api.h
2844 check_header malloc.h
2845 check_header poll.h
2846 check_header sys/mman.h
2847 check_header sys/resource.h
2848 check_header sys/select.h
2849 check_header vdpau/vdpau.h
2850 check_header vdpau/vdpau_x11.h
2851 check_header X11/extensions/XvMClib.h
2852
2853 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2854
2855 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2856 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2857
2858 if ! disabled w32threads && ! enabled pthreads; then
2859     check_func _beginthreadex && enable w32threads
2860 fi
2861
2862 # check for some common methods of building with pthread support
2863 # do this before the optional library checks as some of them require pthreads
2864 if ! disabled pthreads && ! enabled w32threads; then
2865     enable pthreads
2866     if check_func pthread_create; then
2867         :
2868     elif check_func pthread_create -pthread; then
2869         add_cflags -pthread
2870         add_extralibs -pthread
2871     elif check_func pthread_create -pthreads; then
2872         add_cflags -pthreads
2873         add_extralibs -pthreads
2874     elif check_func pthread_create -lpthreadGC2; then
2875         add_extralibs -lpthreadGC2
2876     elif ! check_lib pthread.h pthread_create -lpthread; then
2877         disable pthreads
2878     fi
2879 fi
2880
2881 for thread in $THREADS_LIST; do
2882     if enabled $thread; then
2883         test -n "$thread_type" &&
2884             die "ERROR: Only one thread type must be selected." ||
2885             thread_type="$thread"
2886     fi
2887 done
2888
2889 check_lib math.h sin -lm && LIBM="-lm"
2890 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2891
2892 check_mathfunc exp2
2893 check_mathfunc exp2f
2894 check_mathfunc llrint
2895 check_mathfunc llrintf
2896 check_mathfunc log2
2897 check_mathfunc log2f
2898 check_mathfunc lrint
2899 check_mathfunc lrintf
2900 check_mathfunc round
2901 check_mathfunc roundf
2902 check_mathfunc trunc
2903 check_mathfunc truncf
2904
2905 # these are off by default, so fail if requested and not available
2906 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2907 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2908 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
2909 enabled libdirac   && require_pkg_config dirac                          \
2910     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2911     "dirac_decoder_init dirac_encoder_init"
2912 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2913 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2914 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2915 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2916 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2917 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2918 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2919 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2920 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2921 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
2922 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2923 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2924 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2925 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2926 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2927 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2928 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2929 enabled libvpx     && {
2930     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2931                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2932     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2933                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2934 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2935                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
2936                         die "ERROR: libx264 version must be >= 0.118."; }
2937 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2938 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2939 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2940 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
2941                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
2942                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
2943                         die "ERROR: openssl not found"; }
2944
2945 # libdc1394 check
2946 if enabled libdc1394; then
2947     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2948         enable libdc1394_2; } ||
2949     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2950         enable libdc1394_1; } ||
2951     die "ERROR: No version of libdc1394 found "
2952 fi
2953
2954 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2955     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2956     enable sdl &&
2957     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2958 fi
2959
2960 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2961
2962 check_header linux/fb.h
2963 check_header linux/videodev.h
2964 check_header linux/videodev2.h
2965 check_header sys/videoio.h
2966
2967 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2968 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2969 # w32api 3.12 had it defined wrong
2970 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2971
2972 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2973 { check_header dev/bktr/ioctl_meteor.h &&
2974   check_header dev/bktr/ioctl_bt848.h; } ||
2975 { check_header machine/ioctl_meteor.h &&
2976   check_header machine/ioctl_bt848.h; } ||
2977 { check_header dev/video/meteor/ioctl_meteor.h &&
2978   check_header dev/video/bktr/ioctl_bt848.h; } ||
2979 check_header dev/ic/bt8xx.h
2980
2981 check_header sndio.h
2982 check_header sys/soundcard.h
2983 check_header soundcard.h
2984
2985 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2986
2987 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2988
2989 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2990
2991 enabled libcdio &&
2992     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
2993
2994 enabled x11grab                         &&
2995 check_header X11/Xlib.h                 &&
2996 check_header X11/extensions/XShm.h      &&
2997 check_header X11/extensions/Xfixes.h    &&
2998 check_func XOpenDisplay -lX11           &&
2999 check_func XShmCreateImage -lX11 -lXext &&
3000 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3001
3002 # check for VDA header
3003 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3004     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3005 fi
3006
3007 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3008 check_cpp_condition \
3009     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3010     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3011       disable vdpau; }
3012 fi
3013
3014 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3015
3016 # add some useful compiler flags if supported
3017 check_cflags -Wdeclaration-after-statement
3018 check_cflags -Wall
3019 check_cflags -Wno-parentheses
3020 check_cflags -Wno-switch
3021 check_cflags -Wno-format-zero-length
3022 check_cflags -Wdisabled-optimization
3023 check_cflags -Wpointer-arith
3024 check_cflags -Wredundant-decls
3025 check_cflags -Wno-pointer-sign
3026 check_cflags -Wcast-qual
3027 check_cflags -Wwrite-strings
3028 check_cflags -Wtype-limits
3029 check_cflags -Wundef
3030 check_cflags -Wmissing-prototypes
3031 check_cflags -Wstrict-prototypes
3032 enabled extra_warnings && check_cflags -Winline
3033
3034 # add some linker flags
3035 check_ldflags -Wl,--warn-common
3036 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3037 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3038
3039 echo "X{};" > $TMPV
3040 if test_ldflags -Wl,--version-script,$TMPV; then
3041     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3042     check_cc <<EOF && enable symver_asm_label
3043 void ff_foo(void) __asm__ ("av_foo@VERSION");
3044 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3045 EOF
3046     check_cc <<EOF && enable symver_gnu_asm
3047 __asm__(".symver ff_foo,av_foo@VERSION");
3048 void ff_foo(void) {}
3049 EOF
3050 fi
3051
3052 if [ -n "$optflags" ]; then
3053     add_cflags $optflags
3054 elif enabled small; then
3055     add_cflags $size_cflags
3056 elif enabled optimizations; then
3057     add_cflags $speed_cflags
3058 else
3059     add_cflags $noopt_cflags
3060 fi
3061 check_cflags -fno-math-errno
3062 check_cflags -fno-signed-zeros
3063
3064 if enabled icc; then
3065     # Just warnings, no remarks
3066     check_cflags -w1
3067     # -wd: Disable following warnings
3068     # 144, 167, 556: -Wno-pointer-sign
3069     # 1292: attribute "foo" ignored
3070     # 10006: ignoring unknown option -fno-signed-zeros
3071     # 10148: ignoring unknown option -Wno-parentheses
3072     # 10156: ignoring option '-W'; no argument required
3073     check_cflags -wd144,167,556,1292,10006,10148,10156
3074     # 11030: Warning unknown option --as-needed
3075     # 10156: ignoring option '-export'; no argument required
3076     check_ldflags -wd10156,11030
3077     # Allow to compile with optimizations
3078     check_ldflags -march=$cpu
3079     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3080     enable ebp_available
3081     if enabled x86_32; then
3082         test ${icc_version%%.*} -ge 11 && \
3083             check_cflags -falign-stack=maintain-16-byte || \
3084             disable aligned_stack
3085     fi
3086 elif enabled ccc; then
3087     # disable some annoying warnings
3088     add_cflags -msg_disable cvtu32to64
3089     add_cflags -msg_disable embedcomment
3090     add_cflags -msg_disable needconstext
3091     add_cflags -msg_disable nomainieee
3092     add_cflags -msg_disable ptrmismatch1
3093     add_cflags -msg_disable unreachcode
3094 elif enabled gcc; then
3095     check_cflags -fno-tree-vectorize
3096     check_cflags -Werror=implicit-function-declaration
3097     check_cflags -Werror=missing-prototypes
3098 elif enabled llvm_gcc; then
3099     check_cflags -mllvm -stack-alignment=16
3100 elif enabled clang; then
3101     check_cflags -mllvm -stack-alignment=16
3102     check_cflags -Qunused-arguments
3103 elif enabled armcc; then
3104     # 2523: use of inline assembler is deprecated
3105     add_cflags -W${armcc_opt},--diag_suppress=2523
3106     add_cflags -W${armcc_opt},--diag_suppress=1207
3107     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3108     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3109     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3110     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3111 elif enabled tms470; then
3112     add_cflags -pds=824 -pds=837
3113 elif enabled pathscale; then
3114     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3115 fi
3116
3117 enabled_any $THREADS_LIST      && enable threads
3118
3119 check_deps $CONFIG_LIST       \
3120            $CONFIG_EXTRA      \
3121            $HAVE_LIST         \
3122            $DECODER_LIST      \
3123            $ENCODER_LIST      \
3124            $HWACCEL_LIST      \
3125            $PARSER_LIST       \
3126            $BSF_LIST          \
3127            $DEMUXER_LIST      \
3128            $MUXER_LIST        \
3129            $FILTER_LIST       \
3130            $INDEV_LIST        \
3131            $OUTDEV_LIST       \
3132            $PROTOCOL_LIST     \
3133            $ACODEC_TESTS      \
3134            $VCODEC_TESTS      \
3135            $LAVF_TESTS        \
3136            $LAVFI_TESTS       \
3137            $SEEK_TESTS        \
3138
3139 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3140
3141 ! enabled_any memalign posix_memalign malloc_aligned &&
3142     enabled_any $need_memalign && enable memalign_hack
3143
3144 echo "install prefix            $prefix"
3145 echo "source path               $source_path"
3146 echo "C compiler                $cc"
3147 echo "ARCH                      $arch ($cpu)"
3148 if test "$build_suffix" != ""; then
3149     echo "build suffix              $build_suffix"
3150 fi
3151 if test "$extra_version" != ""; then
3152     echo "version string suffix     $extra_version"
3153 fi
3154 echo "big-endian                ${bigendian-no}"
3155 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3156 if enabled x86; then
3157     echo "${yasmexe}                      ${yasm-no}"
3158     echo "MMX enabled               ${mmx-no}"
3159     echo "MMX2 enabled              ${mmx2-no}"
3160     echo "3DNow! enabled            ${amd3dnow-no}"
3161     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3162     echo "SSE enabled               ${sse-no}"
3163     echo "SSSE3 enabled             ${ssse3-no}"
3164     echo "AVX enabled               ${avx-no}"
3165     echo "CMOV enabled              ${cmov-no}"
3166     echo "CMOV is fast              ${fast_cmov-no}"
3167     echo "EBX available             ${ebx_available-no}"
3168     echo "EBP available             ${ebp_available-no}"
3169 fi
3170 if enabled arm; then
3171     echo "ARMv5TE enabled           ${armv5te-no}"
3172     echo "ARMv6 enabled             ${armv6-no}"
3173     echo "ARMv6T2 enabled           ${armv6t2-no}"
3174     echo "ARM VFP enabled           ${armvfp-no}"
3175     echo "IWMMXT enabled            ${iwmmxt-no}"
3176     echo "NEON enabled              ${neon-no}"
3177 fi
3178 if enabled mips; then
3179     echo "MMI enabled               ${mmi-no}"
3180 fi
3181 if enabled ppc; then
3182     echo "AltiVec enabled           ${altivec-no}"
3183     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3184     echo "dcbzl available           ${dcbzl-no}"
3185 fi
3186 if enabled sparc; then
3187     echo "VIS enabled               ${vis-no}"
3188 fi
3189 echo "debug symbols             ${debug-no}"
3190 echo "optimize for size         ${small-no}"
3191 echo "optimizations             ${optimizations-no}"
3192 echo "static                    ${static-no}"
3193 echo "shared                    ${shared-no}"
3194 echo "postprocessing support    ${postproc-no}"
3195 echo "new filter support        ${avfilter-no}"
3196 echo "network support           ${network-no}"
3197 echo "threading support         ${thread_type-no}"
3198 echo "SDL support               ${sdl-no}"
3199 echo "Sun medialib support      ${mlib-no}"
3200 echo "libdxva2 enabled          ${dxva2-no}"
3201 echo "libva enabled             ${vaapi-no}"
3202 echo "libvdpau enabled          ${vdpau-no}"
3203 echo "AVISynth enabled          ${avisynth-no}"
3204 echo "frei0r enabled            ${frei0r-no}"
3205 echo "gnutls enabled            ${gnutls-no}"
3206 echo "libcdio support           ${libcdio-no}"
3207 echo "libdc1394 support         ${libdc1394-no}"
3208 echo "libdirac enabled          ${libdirac-no}"
3209 echo "libfaac enabled           ${libfaac-no}"
3210 echo "libgsm enabled            ${libgsm-no}"
3211 echo "libmp3lame enabled        ${libmp3lame-no}"
3212 echo "libnut enabled            ${libnut-no}"
3213 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3214 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3215 echo "libopencv support         ${libopencv-no}"
3216 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3217 echo "libpulse enabled          ${libpulse-no}"
3218 echo "librtmp enabled           ${librtmp-no}"
3219 echo "libschroedinger enabled   ${libschroedinger-no}"
3220 echo "libspeex enabled          ${libspeex-no}"
3221 echo "libtheora enabled         ${libtheora-no}"
3222 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3223 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3224 echo "libvorbis enabled         ${libvorbis-no}"
3225 echo "libvpx enabled            ${libvpx-no}"
3226 echo "libx264 enabled           ${libx264-no}"
3227 echo "libxavs enabled           ${libxavs-no}"
3228 echo "libxvid enabled           ${libxvid-no}"
3229 echo "openssl enabled           ${openssl-no}"
3230 echo "zlib enabled              ${zlib-no}"
3231 echo "bzlib enabled             ${bzlib-no}"
3232 echo
3233
3234 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3235     echo "Enabled ${type}s:"
3236     eval list=\$$(toupper $type)_LIST
3237     print_enabled '_*' $list | sort | pr -r -3 -t
3238     echo
3239 done
3240
3241 license="LGPL version 2.1 or later"
3242 if enabled nonfree; then
3243     license="nonfree and unredistributable"
3244 elif enabled gplv3; then
3245     license="GPL version 3 or later"
3246 elif enabled lgplv3; then
3247     license="LGPL version 3 or later"
3248 elif enabled gpl; then
3249     license="GPL version 2 or later"
3250 fi
3251
3252 echo "License: $license"
3253
3254 echo "Creating config.mak and config.h..."
3255
3256 test -e Makefile || $ln_s "$source_path/Makefile" .
3257
3258 config_files="$TMPH config.mak"
3259
3260 cat > config.mak <<EOF
3261 # Automatically generated by configure - do not modify!
3262 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3263 prefix=$prefix
3264 LIBDIR=\$(DESTDIR)$libdir
3265 SHLIBDIR=\$(DESTDIR)$shlibdir
3266 INCDIR=\$(DESTDIR)$incdir
3267 BINDIR=\$(DESTDIR)$bindir
3268 DATADIR=\$(DESTDIR)$datadir
3269 MANDIR=\$(DESTDIR)$mandir
3270 SRC_PATH=$source_path
3271 CC_IDENT=$cc_ident
3272 ARCH=$arch
3273 CC=$cc
3274 AS=$as
3275 LD=$ld
3276 DEPCC=$dep_cc
3277 YASM=$yasmexe
3278 YASMDEP=$yasmexe
3279 AR=$ar
3280 RANLIB=$ranlib
3281 LN_S=$ln_s
3282 CPPFLAGS=$CPPFLAGS
3283 CFLAGS=$CFLAGS
3284 ASFLAGS=$ASFLAGS
3285 AS_O=$CC_O
3286 CC_O=$CC_O
3287 DLLTOOL=$dlltool
3288 LDFLAGS=$LDFLAGS
3289 AVSERVERLDFLAGS=$AVSERVERLDFLAGS
3290 SHFLAGS=$SHFLAGS
3291 YASMFLAGS=$YASMFLAGS
3292 BUILDSUF=$build_suffix
3293 FULLNAME=$FULLNAME
3294 LIBPREF=$LIBPREF
3295 LIBSUF=$LIBSUF
3296 LIBNAME=$LIBNAME
3297 SLIBPREF=$SLIBPREF
3298 SLIBSUF=$SLIBSUF
3299 EXESUF=$EXESUF
3300 EXTRA_VERSION=$extra_version
3301 DEPFLAGS=$DEPFLAGS
3302 CCDEP=$CCDEP
3303 ASDEP=$ASDEP
3304 CC_DEPFLAGS=$CC_DEPFLAGS
3305 AS_DEPFLAGS=$AS_DEPFLAGS
3306 HOSTCC=$host_cc
3307 HOSTCFLAGS=$host_cflags
3308 HOSTEXESUF=$HOSTEXESUF
3309 HOSTLDFLAGS=$host_ldflags
3310 HOSTLIBS=$host_libs
3311 TARGET_EXEC=$target_exec
3312 TARGET_PATH=$target_path
3313 SDL_LIBS=$sdl_libs
3314 SDL_CFLAGS=$sdl_cflags
3315 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3316 EXTRALIBS=$extralibs
3317 INSTALL=install
3318 LIBTARGET=${LIBTARGET}
3319 SLIBNAME=${SLIBNAME}
3320 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3321 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3322 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3323 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3324 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3325 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3326 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3327 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3328 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3329 EOF
3330
3331 get_version(){
3332     name=$1
3333     file=$source_path/$2
3334     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3335     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3336     lcname=$(tolower $name)
3337     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3338     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3339 }
3340
3341 get_version LIBAVCODEC  libavcodec/version.h
3342 get_version LIBAVDEVICE libavdevice/avdevice.h
3343 get_version LIBAVFILTER libavfilter/avfilter.h
3344 get_version LIBAVFORMAT libavformat/version.h
3345 get_version LIBAVUTIL   libavutil/avutil.h
3346 get_version LIBPOSTPROC libpostproc/postprocess.h
3347 get_version LIBSWSCALE  libswscale/swscale.h
3348
3349 cat > $TMPH <<EOF
3350 /* Automatically generated by configure - do not modify! */
3351 #ifndef LIBAV_CONFIG_H
3352 #define LIBAV_CONFIG_H
3353 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3354 #define LIBAV_LICENSE "$(c_escape $license)"
3355 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3356 #define CC_TYPE "$cc_type"
3357 #define CC_VERSION $cc_version
3358 #define restrict $_restrict
3359 #define EXTERN_PREFIX "${extern_prefix}"
3360 #define EXTERN_ASM ${extern_prefix}
3361 #define SLIBSUF "$SLIBSUF"
3362 EOF
3363
3364 test -n "$malloc_prefix" &&
3365     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3366
3367 if enabled small || disabled optimizations; then
3368     echo "#undef  av_always_inline"  >> $TMPH
3369     if enabled small; then
3370         echo "#define av_always_inline inline"  >> $TMPH
3371     else
3372         echo "#define av_always_inline av_unused"  >> $TMPH
3373     fi
3374 fi
3375
3376 if enabled yasm; then
3377     append config_files $TMPASM
3378     printf '' >$TMPASM
3379 fi
3380
3381 print_config ARCH_   "$config_files" $ARCH_LIST
3382 print_config HAVE_   "$config_files" $HAVE_LIST
3383 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3384                                      $CONFIG_EXTRA      \
3385                                      $DECODER_LIST      \
3386                                      $ENCODER_LIST      \
3387                                      $HWACCEL_LIST      \
3388                                      $PARSER_LIST       \
3389                                      $BSF_LIST          \
3390                                      $DEMUXER_LIST      \
3391                                      $MUXER_LIST        \
3392                                      $FILTER_LIST       \
3393                                      $PROTOCOL_LIST     \
3394                                      $INDEV_LIST        \
3395                                      $OUTDEV_LIST       \
3396
3397 cat >>config.mak <<EOF
3398 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3399 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3400 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3401 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3402 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3403 EOF
3404
3405 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3406
3407 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3408 cp_if_changed $TMPH config.h
3409 touch .config
3410
3411 enabled yasm && cp_if_changed $TMPASM config.asm
3412
3413 cat > $TMPH <<EOF
3414 /* Generated by ffconf */
3415 #ifndef AVUTIL_AVCONFIG_H
3416 #define AVUTIL_AVCONFIG_H
3417 EOF
3418
3419 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3420
3421 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3422
3423 cp_if_changed $TMPH libavutil/avconfig.h
3424
3425 test -n "$WARNINGS" && printf "\n$WARNINGS"
3426
3427 # build pkg-config files
3428
3429 pkgconfig_generate(){
3430 name=$1
3431 shortname=${name#lib}${build_suffix}
3432 comment=$2
3433 version=$3
3434 libs=$4
3435 requires=$5
3436 enabled ${name#lib} || return 0
3437 mkdir -p $name
3438 cat <<EOF > $name/$name.pc
3439 prefix=$prefix
3440 exec_prefix=\${prefix}
3441 libdir=$libdir
3442 includedir=$incdir
3443
3444 Name: $name
3445 Description: $comment
3446 Version: $version
3447 Requires: $(enabled shared || echo $requires)
3448 Requires.private: $(enabled shared && echo $requires)
3449 Conflicts:
3450 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3451 Libs.private: $(enabled shared && echo $libs)
3452 Cflags: -I\${includedir}
3453 EOF
3454 cat <<EOF > $name/$name-uninstalled.pc
3455 prefix=
3456 exec_prefix=
3457 libdir=\${pcfiledir}
3458 includedir=${source_path}
3459
3460 Name: $name
3461 Description: $comment
3462 Version: $version
3463 Requires: $requires
3464 Conflicts:
3465 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3466 Cflags: -I\${includedir}
3467 EOF
3468 }
3469
3470 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3471 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3472 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3473 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3474 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3475 pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3476 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"