Check for huffman tree building error in vp6 decoder.
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg 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 FFMPEG, 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 FFmpeg."
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/ffmpeg]
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-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-postproc       disable libpostproc build
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code
110   --enable-vdpau           enable VDPAU code
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
115   --disable-everything     disable all components listed below
116   --disable-encoder=NAME   disable encoder NAME
117   --enable-encoder=NAME    enable encoder NAME
118   --disable-encoders       disable all encoders
119   --disable-decoder=NAME   disable decoder NAME
120   --enable-decoder=NAME    enable decoder NAME
121   --disable-decoders       disable all decoders
122   --disable-hwaccel=NAME   disable hwaccel NAME
123   --enable-hwaccel=NAME    enable hwaccel NAME
124   --disable-hwaccels       disable all hwaccels
125   --disable-muxer=NAME     disable muxer NAME
126   --enable-muxer=NAME      enable muxer NAME
127   --disable-muxers         disable all muxers
128   --disable-demuxer=NAME   disable demuxer NAME
129   --enable-demuxer=NAME    enable demuxer NAME
130   --disable-demuxers       disable all demuxers
131   --enable-parser=NAME     enable parser NAME
132   --disable-parser=NAME    disable parser NAME
133   --disable-parsers        disable all parsers
134   --enable-bsf=NAME        enable bitstream filter NAME
135   --disable-bsf=NAME       disable bitstream filter NAME
136   --disable-bsfs           disable all bitstream filters
137   --enable-protocol=NAME   enable protocol NAME
138   --disable-protocol=NAME  disable protocol NAME
139   --disable-protocols      disable all protocols
140   --disable-indev=NAME     disable input device NAME
141   --disable-outdev=NAME    disable output device NAME
142   --disable-indevs         disable input devices
143   --disable-outdevs        disable output devices
144   --disable-devices        disable all devices
145   --enable-filter=NAME     enable filter NAME
146   --disable-filter=NAME    disable filter NAME
147   --disable-filters        disable all filters
148   --list-decoders          show all available decoders
149   --list-encoders          show all available encoders
150   --list-hwaccels          show all available hardware accelerators
151   --list-muxers            show all available muxers
152   --list-demuxers          show all available demuxers
153   --list-parsers           show all available parsers
154   --list-protocols         show all available protocols
155   --list-bsfs              show all available bitstream filters
156   --list-indevs            show all available input devices
157   --list-outdevs           show all available output devices
158   --list-filters           show all available filters
159
160 External library support:
161   --enable-avisynth        enable reading of AVISynth script files [no]
162   --enable-bzlib           enable bzlib [autodetect]
163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
164   --enable-frei0r          enable frei0r video filtering
165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167   --enable-libopencv       enable video filtering via libopencv [no]
168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
169                            and libraw1394 [no]
170   --enable-libdirac        enable Dirac support via libdirac [no]
171   --enable-libfaac         enable FAAC support via libfaac [no]
172   --enable-libfreetype     enable libfreetype [no]
173   --enable-libgsm          enable GSM support via libgsm [no]
174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
175   --enable-libnut          enable NUT (de)muxing via libnut,
176                            native (de)muxer exists [no]
177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
180   --enable-libspeex        enable Speex encoding and decoding via libspeex [no]
181   --enable-libtheora       enable Theora encoding via libtheora [no]
182   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
183   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
185                            native implementation exists [no]
186   --enable-libvpx          enable VP8 support via libvpx [no]
187   --enable-libx264         enable H.264 encoding via x264 [no]
188   --enable-libxavs         enable AVS encoding via xavs [no]
189   --enable-libxvid         enable Xvid encoding via xvidcore,
190                            native MPEG-4/Xvid encoder exists [no]
191   --enable-mlib            enable Sun medialib [no]
192   --enable-zlib            enable zlib [autodetect]
193
194 Advanced options (experts only):
195   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
196   --enable-cross-compile   assume a cross-compiler is used
197   --sysroot=PATH           root of cross-build tree
198   --sysinclude=PATH        location of cross-build system headers
199   --target-os=OS           compiler targets OS [$target_os]
200   --target-exec=CMD        command to run executables on target
201   --target-path=DIR        path to view of build directory on target
202   --nm=NM                  use nm tool
203   --ar=AR                  use archive tool AR [$ar_default]
204   --as=AS                  use assembler AS [$as_default]
205   --cc=CC                  use C compiler CC [$cc_default]
206   --ld=LD                  use linker LD
207   --host-cc=HOSTCC         use host C compiler HOSTCC
208   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
209   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
210   --host-libs=HLIBS        use libs HLIBS when linking for host
211   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
212   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
213   --extra-libs=ELIBS       add ELIBS [$ELIBS]
214   --extra-version=STRING   version string suffix []
215   --build-suffix=SUFFIX    library name suffix []
216   --arch=ARCH              select architecture [$arch]
217   --cpu=CPU                select the minimum required CPU (affects
218                            instruction selection, may crash on older CPUs)
219   --disable-asm            disable all assembler optimizations
220   --disable-altivec        disable AltiVec optimizations
221   --disable-amd3dnow       disable 3DNow! optimizations
222   --disable-amd3dnowext    disable 3DNow! extended optimizations
223   --disable-mmx            disable MMX optimizations
224   --disable-mmx2           disable MMX2 optimizations
225   --disable-sse            disable SSE optimizations
226   --disable-ssse3          disable SSSE3 optimizations
227   --disable-avx            disable AVX optimizations
228   --disable-armv5te        disable armv5te optimizations
229   --disable-armv6          disable armv6 optimizations
230   --disable-armv6t2        disable armv6t2 optimizations
231   --disable-armvfp         disable ARM VFP optimizations
232   --disable-iwmmxt         disable iwmmxt optimizations
233   --disable-mmi            disable MMI optimizations
234   --disable-neon           disable neon optimizations
235   --disable-vis            disable VIS optimizations
236   --disable-yasm           disable use of yasm assembler
237   --enable-pic             build position-independent code
238   --malloc-prefix=PFX      prefix malloc and related names with PFX
239   --enable-sram            allow use of on-chip SRAM
240   --disable-symver         disable symbol versioning
241
242 Developer options (useful when working on FFmpeg itself):
243   --disable-debug          disable debugging symbols
244   --enable-debug=LEVEL     set the debug level [$debuglevel]
245   --disable-optimizations  disable compiler optimizations
246   --enable-extra-warnings  enable more compiler warnings
247   --disable-stripping      disable stripping of executables and shared libraries
248   --samples=PATH           location of test samples for FATE, if not set use
249                            \$FATE_SAMPLES at make invocation time.
250
251 NOTE: Object files are built at the place where configure is launched.
252 EOF
253   exit 0
254 }
255
256 quotes='""'
257
258 log(){
259     echo "$@" >> $logfile
260 }
261
262 log_file(){
263     log BEGIN $1
264     pr -n -t $1 >> $logfile
265     log END $1
266 }
267
268 echolog(){
269     log "$@"
270     echo "$@"
271 }
272
273 warn(){
274     log "WARNING: $*"
275     WARNINGS="${WARNINGS}WARNING: $*\n"
276 }
277
278 die(){
279     echolog "$@"
280     cat <<EOF
281
282 If you think configure made a mistake, make sure you are using the latest
283 version from Git.  If the latest version fails, report the problem to the
284 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
285 EOF
286     if disabled logging; then
287         cat <<EOF
288 Rerun configure with logging enabled (do not use --disable-logging), and
289 include the log this produces with your report.
290 EOF
291     else
292 cat <<EOF
293 Include the log file "$logfile" produced by configure as this will help
294 solving the problem.
295 EOF
296     fi
297     exit 1
298 }
299
300 # Avoid locale weirdness, besides we really just want to translate ASCII.
301 toupper(){
302     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
303 }
304
305 tolower(){
306     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
307 }
308
309 c_escape(){
310     echo "$*" | sed 's/["\\]/\\\0/g'
311 }
312
313 sh_quote(){
314     v=$(echo "$1" | sed "s/'/'\\\\''/g")
315     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
316     echo "$v"
317 }
318
319 cleanws(){
320     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
321 }
322
323 filter(){
324     pat=$1
325     shift
326     for v; do
327         eval "case $v in $pat) echo $v ;; esac"
328     done
329 }
330
331 filter_out(){
332     pat=$1
333     shift
334     for v; do
335         eval "case $v in $pat) ;; *) echo $v ;; esac"
336     done
337 }
338
339 map(){
340     m=$1
341     shift
342     for v; do eval $m; done
343 }
344
345 set_all(){
346     value=$1
347     shift
348     for var in $*; do
349         eval $var=$value
350     done
351 }
352
353 set_weak(){
354     value=$1
355     shift
356     for var; do
357         eval : \${$var:=$value}
358     done
359 }
360
361 set_safe(){
362     var=$1
363     shift
364     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
365 }
366
367 get_safe(){
368     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
369 }
370
371 pushvar(){
372     for var in $*; do
373         eval level=\${${var}_level:=0}
374         eval ${var}_${level}="\$$var"
375         eval ${var}_level=$(($level+1))
376     done
377 }
378
379 popvar(){
380     for var in $*; do
381         eval level=\${${var}_level:-0}
382         test $level = 0 && continue
383         eval level=$(($level-1))
384         eval $var="\${${var}_${level}}"
385         eval ${var}_level=$level
386         eval unset ${var}_${level}
387     done
388 }
389
390 enable(){
391     set_all yes $*
392 }
393
394 disable(){
395     set_all no $*
396 }
397
398 enable_weak(){
399     set_weak yes $*
400 }
401
402 disable_weak(){
403     set_weak no $*
404 }
405
406 enable_safe(){
407     for var; do
408         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
409     done
410 }
411
412 disable_safe(){
413     for var; do
414         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
415     done
416 }
417
418 do_enable_deep(){
419     for var; do
420         enabled $var && continue
421         eval sel="\$${var}_select"
422         eval sgs="\$${var}_suggest"
423         pushvar var sgs
424         enable_deep $sel
425         popvar sgs
426         enable_deep_weak $sgs
427         popvar var
428     done
429 }
430
431 enable_deep(){
432     do_enable_deep $*
433     enable $*
434 }
435
436 enable_deep_weak(){
437     do_enable_deep $*
438     enable_weak $*
439 }
440
441 enabled(){
442     test "${1#!}" = "$1" && op== || op=!=
443     eval test "x\$${1#!}" $op "xyes"
444 }
445
446 disabled(){
447     test "${1#!}" = "$1" && op== || op=!=
448     eval test "x\$${1#!}" $op "xno"
449 }
450
451 enabled_all(){
452     for opt; do
453         enabled $opt || return 1
454     done
455 }
456
457 disabled_all(){
458     for opt; do
459         disabled $opt || return 1
460     done
461 }
462
463 enabled_any(){
464     for opt; do
465         enabled $opt && return 0
466     done
467 }
468
469 disabled_any(){
470     for opt; do
471         disabled $opt && return 0
472     done
473     return 1
474 }
475
476 set_default(){
477     for opt; do
478         eval : \${$opt:=\$${opt}_default}
479     done
480 }
481
482 is_in(){
483     value=$1
484     shift
485     for var in $*; do
486         [ $var = $value ] && return 0
487     done
488     return 1
489 }
490
491 check_deps(){
492     for cfg; do
493         cfg="${cfg#!}"
494         enabled ${cfg}_checking && die "Circular dependency for $cfg."
495         disabled ${cfg}_checking && continue
496         enable ${cfg}_checking
497
498         eval dep_all="\$${cfg}_deps"
499         eval dep_any="\$${cfg}_deps_any"
500         eval dep_sel="\$${cfg}_select"
501         eval dep_sgs="\$${cfg}_suggest"
502         eval dep_ifa="\$${cfg}_if"
503         eval dep_ifn="\$${cfg}_if_any"
504
505         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
506         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
507         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
508
509         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
510         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
511         enabled_all  $dep_all || disable $cfg
512         enabled_any  $dep_any || disable $cfg
513         disabled_any $dep_sel && disable $cfg
514
515         if enabled $cfg; then
516             eval dep_extralibs="\$${cfg}_extralibs"
517             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
518             enable_deep $dep_sel
519             enable_deep_weak $dep_sgs
520         fi
521
522         disable ${cfg}_checking
523     done
524 }
525
526 print_config_h(){
527     enabled $1 && v=1 || v=0
528     echo "#define $2 $v"
529 }
530
531 print_config_mak(){
532     enabled $1 && v= || v=!
533     echo "$v$2=yes"
534 }
535
536 print_config_asm(){
537     enabled $1 && echo "%define $2"
538 }
539
540 print_config(){
541     pfx=$1
542     files=$2
543     shift 2
544     for cfg; do
545         ucname="$(toupper $cfg)"
546         for f in $files; do
547             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
548         done
549     done
550 }
551
552 print_enabled(){
553     test "$1" = -n && end=" " && shift || end="\n"
554     suf=$1
555     shift
556     for v; do
557         enabled $v && printf "%s$end" ${v%$suf};
558     done
559 }
560
561 append(){
562     var=$1
563     shift
564     eval "$var=\"\$$var $*\""
565 }
566
567 prepend(){
568     var=$1
569     shift
570     eval "$var=\"$* \$$var\""
571 }
572
573 add_cppflags(){
574     append CPPFLAGS $($filter_cppflags "$@")
575 }
576
577 add_cflags(){
578     append CFLAGS $($filter_cflags "$@")
579 }
580
581 add_asflags(){
582     append ASFLAGS $($filter_asflags "$@")
583 }
584
585 add_ldflags(){
586     append LDFLAGS "$@"
587 }
588
589 add_extralibs(){
590     prepend extralibs "$@"
591 }
592
593 check_cmd(){
594     log "$@"
595     "$@" >> $logfile 2>&1
596 }
597
598 check_cc(){
599     log check_cc "$@"
600     cat > $TMPC
601     log_file $TMPC
602     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
603 }
604
605 check_cpp(){
606     log check_cpp "$@"
607     cat > $TMPC
608     log_file $TMPC
609     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
610 }
611
612 check_as(){
613     log check_as "$@"
614     cat > $TMPC
615     log_file $TMPC
616     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
617 }
618
619 check_asm(){
620     log check_asm "$@"
621     name="$1"
622     code="$2"
623     shift 2
624     disable $name
625     check_as "$@" <<EOF && enable $name
626 void foo(void){ __asm__ volatile($code); }
627 EOF
628 }
629
630 check_yasm(){
631     log check_yasm "$@"
632     echo "$1" > $TMPS
633     log_file $TMPS
634     shift 1
635     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
636 }
637
638 check_ld(){
639     log check_ld "$@"
640     flags=''
641     libs=''
642     for f; do
643         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
644     done
645     check_cc $($filter_cflags $flags) || return
646     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
647 }
648
649 check_cppflags(){
650     log check_cppflags "$@"
651     set -- $($filter_cppflags "$@")
652     check_cc "$@" <<EOF && append CPPFLAGS "$@"
653 int x;
654 EOF
655 }
656
657 check_cflags(){
658     log check_cflags "$@"
659     set -- $($filter_cflags "$@")
660     check_cc "$@" <<EOF && append CFLAGS "$@"
661 int x;
662 EOF
663 }
664
665 test_ldflags(){
666     log test_ldflags "$@"
667     check_ld "$@" <<EOF
668 int main(void){ return 0; }
669 EOF
670 }
671
672 check_ldflags(){
673     log check_ldflags "$@"
674     test_ldflags "$@" && add_ldflags "$@"
675 }
676
677 check_header(){
678     log check_header "$@"
679     header=$1
680     shift
681     disable_safe $header
682     check_cpp "$@" <<EOF && enable_safe $header
683 #include <$header>
684 int x;
685 EOF
686 }
687
688 check_func(){
689     log check_func "$@"
690     func=$1
691     shift
692     disable $func
693     check_ld "$@" <<EOF && enable $func
694 extern int $func();
695 int main(void){ $func(); }
696 EOF
697 }
698
699 check_mathfunc(){
700     log check_mathfunc "$@"
701     func=$1
702     shift
703     disable $func
704     check_ld "$@" <<EOF && enable $func
705 #include <math.h>
706 float foo(float f) { return $func(f); }
707 int main(void){ return 0; }
708 EOF
709 }
710
711 check_func_headers(){
712     log check_func_headers "$@"
713     headers=$1
714     funcs=$2
715     shift 2
716     {
717         for hdr in $headers; do
718             echo "#include <$hdr>"
719         done
720         for func in $funcs; do
721             echo "long check_$func(void) { return (long) $func; }"
722         done
723         echo "int main(void) { return 0; }"
724     } | check_ld "$@" && enable $funcs && enable_safe $headers
725 }
726
727 check_cpp_condition(){
728     log check_cpp_condition "$@"
729     header=$1
730     condition=$2
731     shift 2
732     check_cpp $($filter_cppflags "$@") <<EOF
733 #include <$header>
734 #if !($condition)
735 #error "unsatisfied condition: $condition"
736 #endif
737 EOF
738 }
739
740 check_lib(){
741     log check_lib "$@"
742     header="$1"
743     func="$2"
744     shift 2
745     check_header $header && check_func $func "$@" && add_extralibs "$@"
746 }
747
748 check_lib2(){
749     log check_lib2 "$@"
750     headers="$1"
751     funcs="$2"
752     shift 2
753     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
754 }
755
756 check_pkg_config(){
757     log check_pkg_config "$@"
758     pkg="$1"
759     headers="$2"
760     funcs="$3"
761     shift 3
762     $pkg_config --exists $pkg 2>/dev/null || return
763     pkg_cflags=$($pkg_config --cflags $pkg)
764     pkg_libs=$($pkg_config --libs $pkg)
765     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
766         set_safe ${pkg}_cflags $pkg_cflags   &&
767         set_safe ${pkg}_libs   $pkg_libs
768 }
769
770 check_exec(){
771     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
772 }
773
774 check_exec_crash(){
775     code=$(cat)
776
777     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
778     # are safe but may not be available everywhere.  Thus we use
779     # raise(SIGTERM) instead.  The check is run in a subshell so we
780     # can redirect the "Terminated" message from the shell.  SIGBUS
781     # is not defined by standard C so it is used conditionally.
782
783     (check_exec "$@") >> $logfile 2>&1 <<EOF
784 #include <signal.h>
785 static void sighandler(int sig){
786     raise(SIGTERM);
787 }
788 int main(void){
789     signal(SIGILL, sighandler);
790     signal(SIGFPE, sighandler);
791     signal(SIGSEGV, sighandler);
792 #ifdef SIGBUS
793     signal(SIGBUS, sighandler);
794 #endif
795     { $code }
796 }
797 EOF
798 }
799
800 check_type(){
801     log check_type "$@"
802     headers=$1
803     type=$2
804     shift 2
805     disable_safe "$type"
806     incs=""
807     for hdr in $headers; do
808         incs="$incs
809 #include <$hdr>"
810     done
811     check_cc "$@" <<EOF && enable_safe "$type"
812 $incs
813 $type v;
814 EOF
815 }
816
817 check_struct(){
818     log check_type "$@"
819     headers=$1
820     struct=$2
821     member=$3
822     shift 3
823     disable_safe "${struct}_${member}"
824     incs=""
825     for hdr in $headers; do
826         incs="$incs
827 #include <$hdr>"
828     done
829     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
830 $incs
831 const void *p = &(($struct *)0)->$member;
832 EOF
833 }
834
835 require(){
836     name="$1"
837     header="$2"
838     func="$3"
839     shift 3
840     check_lib $header $func "$@" || die "ERROR: $name not found"
841 }
842
843 require2(){
844     name="$1"
845     headers="$2"
846     func="$3"
847     shift 3
848     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
849 }
850
851 require_pkg_config(){
852     pkg="$1"
853     check_pkg_config "$@" || die "ERROR: $pkg not found"
854     add_cflags    $(get_safe ${pkg}_cflags)
855     add_extralibs $(get_safe ${pkg}_libs)
856 }
857
858 check_host_cc(){
859     log check_host_cc "$@"
860     cat > $TMPC
861     log_file $TMPC
862     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
863 }
864
865 check_host_cflags(){
866     log check_host_cflags "$@"
867     check_host_cc "$@" <<EOF && append host_cflags "$@"
868 int x;
869 EOF
870 }
871
872 apply(){
873     file=$1
874     shift
875     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
876 }
877
878 cp_if_changed(){
879     cmp -s "$1" "$2" &&
880         echo "$2 is unchanged" ||
881         cp -f "$1" "$2"
882 }
883
884 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
885 # system-dependent things.
886
887 COMPONENT_LIST="
888     bsfs
889     decoders
890     demuxers
891     encoders
892     filters
893     hwaccels
894     indevs
895     muxers
896     outdevs
897     parsers
898     protocols
899 "
900
901 CONFIG_LIST="
902     $COMPONENT_LIST
903     aandct
904     ac3dsp
905     avcodec
906     avdevice
907     avfilter
908     avformat
909     avisynth
910     bzlib
911     crystalhd
912     dct
913     doc
914     dwt
915     dxva2
916     fastdiv
917     ffmpeg
918     ffplay
919     ffprobe
920     ffserver
921     fft
922     frei0r
923     golomb
924     gpl
925     gray
926     h264dsp
927     h264pred
928     hardcoded_tables
929     huffman
930     libcelt
931     libdc1394
932     libdirac
933     libfaac
934     libfreetype
935     libgsm
936     libmp3lame
937     libnut
938     libopencore_amrnb
939     libopencore_amrwb
940     libopencv
941     libopenjpeg
942     librtmp
943     libschroedinger
944     libspeex
945     libtheora
946     libvo_aacenc
947     libvo_amrwbenc
948     libvorbis
949     libvpx
950     libx264
951     libxavs
952     libxvid
953     lpc
954     lsp
955     mdct
956     memalign_hack
957     mlib
958     mpegaudiodsp
959     network
960     nonfree
961     pic
962     postproc
963     rdft
964     rtpdec
965     runtime_cpudetect
966     shared
967     sinewin
968     small
969     sram
970     static
971     swscale
972     swscale_alpha
973     vaapi
974     vdpau
975     version3
976     x11grab
977     zlib
978 "
979
980 THREADS_LIST='
981     pthreads
982     w32threads
983 '
984
985 ARCH_LIST='
986     alpha
987     arm
988     avr32
989     avr32_ap
990     avr32_uc
991     bfin
992     ia64
993     m68k
994     mips
995     mips64
996     parisc
997     ppc
998     ppc64
999     s390
1000     sh4
1001     sparc
1002     sparc64
1003     tomi
1004     x86
1005     x86_32
1006     x86_64
1007 '
1008
1009 ARCH_EXT_LIST='
1010     altivec
1011     amd3dnow
1012     amd3dnowext
1013     armv5te
1014     armv6
1015     armv6t2
1016     armvfp
1017     avx
1018     iwmmxt
1019     mmi
1020     mmx
1021     mmx2
1022     neon
1023     ppc4xx
1024     sse
1025     ssse3
1026     vfpv3
1027     vis
1028 '
1029
1030 HAVE_LIST_PUB='
1031     bigendian
1032     fast_unaligned
1033 '
1034
1035 HAVE_LIST="
1036     $ARCH_EXT_LIST
1037     $HAVE_LIST_PUB
1038     $THREADS_LIST
1039     aligned_stack
1040     alsa_asoundlib_h
1041     altivec_h
1042     arpa_inet_h
1043     attribute_may_alias
1044     attribute_packed
1045     bswap
1046     closesocket
1047     cmov
1048     dcbzl
1049     dev_bktr_ioctl_bt848_h
1050     dev_bktr_ioctl_meteor_h
1051     dev_ic_bt8xx_h
1052     dev_video_meteor_ioctl_meteor_h
1053     dev_video_bktr_ioctl_bt848_h
1054     dlfcn_h
1055     dlopen
1056     dos_paths
1057     ebp_available
1058     ebx_available
1059     exp2
1060     exp2f
1061     fast_64bit
1062     fast_clz
1063     fast_cmov
1064     fcntl
1065     fork
1066     getaddrinfo
1067     gethrtime
1068     GetProcessMemoryInfo
1069     GetProcessTimes
1070     getrusage
1071     gnu_as
1072     struct_rusage_ru_maxrss
1073     ibm_asm
1074     inet_aton
1075     inline_asm
1076     isatty
1077     kbhit
1078     ldbrx
1079     llrint
1080     llrintf
1081     local_aligned_16
1082     local_aligned_8
1083     localtime_r
1084     log2
1085     log2f
1086     loongson
1087     lrint
1088     lrintf
1089     lzo1x_999_compress
1090     machine_ioctl_bt848_h
1091     machine_ioctl_meteor_h
1092     malloc_h
1093     MapViewOfFile
1094     memalign
1095     mkstemp
1096     mmap
1097     pld
1098     posix_memalign
1099     round
1100     roundf
1101     sdl
1102     sdl_video_size
1103     setmode
1104     sndio_h
1105     socklen_t
1106     soundcard_h
1107     poll_h
1108     setrlimit
1109     strerror_r
1110     strtok_r
1111     struct_addrinfo
1112     struct_ipv6_mreq
1113     struct_sockaddr_in6
1114     struct_sockaddr_sa_len
1115     struct_sockaddr_storage
1116     symver
1117     symver_gnu_asm
1118     symver_asm_label
1119     sys_mman_h
1120     sys_resource_h
1121     sys_select_h
1122     sys_soundcard_h
1123     sys_videoio_h
1124     ten_operands
1125     termios_h
1126     threads
1127     trunc
1128     truncf
1129     vfp_args
1130     VirtualAlloc
1131     winsock2_h
1132     xform_asm
1133     xmm_clobbers
1134     yasm
1135 "
1136
1137 # options emitted with CONFIG_ prefix but not available on command line
1138 CONFIG_EXTRA="
1139     avutil
1140     gplv3
1141     lgplv3
1142 "
1143
1144 CMDLINE_SELECT="
1145     $ARCH_EXT_LIST
1146     $CONFIG_LIST
1147     $THREADS_LIST
1148     asm
1149     cross_compile
1150     debug
1151     extra_warnings
1152     logging
1153     optimizations
1154     stripping
1155     symver
1156     yasm
1157 "
1158
1159 PATHS_LIST='
1160     bindir
1161     datadir
1162     incdir
1163     libdir
1164     mandir
1165     prefix
1166     shlibdir
1167 '
1168
1169 CMDLINE_SET="
1170     $PATHS_LIST
1171     ar
1172     arch
1173     as
1174     build_suffix
1175     cc
1176     cpu
1177     cross_prefix
1178     dep_cc
1179     extra_version
1180     host_cc
1181     host_cflags
1182     host_ldflags
1183     host_libs
1184     host_os
1185     install
1186     ld
1187     logfile
1188     malloc_prefix
1189     nm
1190     pkg_config
1191     samples
1192     strip
1193     sysinclude
1194     sysroot
1195     target_exec
1196     target_os
1197     target_path
1198 "
1199
1200 CMDLINE_APPEND="
1201     extra_cflags
1202 "
1203
1204 # code dependency declarations
1205
1206 # architecture extensions
1207
1208 armv5te_deps="arm"
1209 armv6_deps="arm"
1210 armv6t2_deps="arm"
1211 armvfp_deps="arm"
1212 iwmmxt_deps="arm"
1213 neon_deps="arm"
1214 vfpv3_deps="armvfp"
1215
1216 mmi_deps="mips"
1217
1218 altivec_deps="ppc"
1219 ppc4xx_deps="ppc"
1220
1221 vis_deps="sparc"
1222
1223 x86_64_suggest="cmov fast_cmov"
1224 amd3dnow_deps="mmx"
1225 amd3dnowext_deps="amd3dnow"
1226 mmx_deps="x86"
1227 mmx2_deps="mmx"
1228 sse_deps="mmx"
1229 ssse3_deps="sse"
1230 avx_deps="ssse3"
1231
1232 aligned_stack_if_any="ppc x86"
1233 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1234 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1235 fast_unaligned_if_any="armv6 ppc x86"
1236
1237 need_memalign="altivec neon sse"
1238 inline_asm_deps="!tms470"
1239
1240 symver_if_any="symver_asm_label symver_gnu_asm"
1241
1242 # subsystems
1243 dct_select="rdft"
1244 mdct_select="fft"
1245 rdft_select="fft"
1246 mpegaudiodsp_select="dct"
1247
1248 # decoders / encoders / hardware accelerators
1249 aac_decoder_select="mdct sinewin"
1250 aac_encoder_select="mdct sinewin"
1251 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1252 ac3_decoder_select="mdct ac3dsp ac3_parser"
1253 ac3_encoder_select="mdct ac3dsp"
1254 ac3_fixed_encoder_select="mdct ac3dsp"
1255 alac_encoder_select="lpc"
1256 amrnb_decoder_select="lsp"
1257 amrwb_decoder_select="lsp"
1258 atrac1_decoder_select="mdct sinewin"
1259 atrac3_decoder_select="mdct"
1260 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1261 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1262 cavs_decoder_select="golomb"
1263 cook_decoder_select="mdct sinewin"
1264 cscd_decoder_suggest="zlib"
1265 dca_decoder_select="mdct"
1266 dnxhd_encoder_select="aandct"
1267 dxa_decoder_select="zlib"
1268 eac3_decoder_select="ac3_decoder"
1269 eac3_encoder_select="mdct ac3dsp"
1270 eamad_decoder_select="aandct"
1271 eatgq_decoder_select="aandct"
1272 eatqi_decoder_select="aandct"
1273 ffv1_decoder_select="golomb"
1274 flac_decoder_select="golomb"
1275 flac_encoder_select="golomb lpc"
1276 flashsv_decoder_select="zlib"
1277 flashsv_encoder_select="zlib"
1278 flashsv2_encoder_select="zlib"
1279 flv_decoder_select="h263_decoder"
1280 flv_encoder_select="h263_encoder"
1281 fraps_decoder_select="huffman"
1282 h261_encoder_select="aandct"
1283 h263_decoder_select="h263_parser"
1284 h263_encoder_select="aandct"
1285 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1286 h263i_decoder_select="h263_decoder"
1287 h263p_encoder_select="h263_encoder"
1288 h264_decoder_select="golomb h264dsp h264pred"
1289 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1290 h264_dxva2_hwaccel_deps="dxva2api_h"
1291 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1292 h264_vaapi_hwaccel_select="vaapi"
1293 h264_vdpau_decoder_select="vdpau h264_decoder"
1294 imc_decoder_select="fft mdct sinewin"
1295 jpegls_decoder_select="golomb"
1296 jpegls_encoder_select="golomb"
1297 ljpeg_encoder_select="aandct"
1298 loco_decoder_select="golomb"
1299 mjpeg_encoder_select="aandct"
1300 mlp_decoder_select="mlp_parser"
1301 mp1_decoder_select="mpegaudiodsp"
1302 mp2_decoder_select="mpegaudiodsp"
1303 mp3adu_decoder_select="mpegaudiodsp"
1304 mp3_decoder_select="mpegaudiodsp"
1305 mp3on4_decoder_select="mpegaudiodsp"
1306 mp1float_decoder_select="mpegaudiodsp"
1307 mp2float_decoder_select="mpegaudiodsp"
1308 mp3adufloat_decoder_select="mpegaudiodsp"
1309 mp3float_decoder_select="mpegaudiodsp"
1310 mp3on4float_decoder_select="mpegaudiodsp"
1311 mpeg1video_encoder_select="aandct"
1312 mpeg2video_encoder_select="aandct"
1313 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1314 mpeg4_encoder_select="h263_encoder"
1315 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1316 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1317 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1318 mpeg2_crystalhd_decoder_select="crystalhd"
1319 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1320 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1321 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1322 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1323 mpeg4_crystalhd_decoder_select="crystalhd"
1324 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1325 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1326 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1327 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1328 msmpeg4_crystalhd_decoder_select="crystalhd"
1329 msmpeg4v1_decoder_select="h263_decoder"
1330 msmpeg4v1_encoder_select="h263_encoder"
1331 msmpeg4v2_decoder_select="h263_decoder"
1332 msmpeg4v2_encoder_select="h263_encoder"
1333 msmpeg4v3_decoder_select="h263_decoder"
1334 msmpeg4v3_encoder_select="h263_encoder"
1335 nellymoser_decoder_select="mdct sinewin"
1336 nellymoser_encoder_select="mdct sinewin"
1337 png_decoder_select="zlib"
1338 png_encoder_select="zlib"
1339 qcelp_decoder_select="lsp"
1340 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1341 ra_144_encoder_select="lpc"
1342 rv10_decoder_select="h263_decoder"
1343 rv10_encoder_select="h263_encoder"
1344 rv20_decoder_select="h263_decoder"
1345 rv20_encoder_select="h263_encoder"
1346 rv30_decoder_select="golomb h264pred"
1347 rv40_decoder_select="golomb h264pred"
1348 shorten_decoder_select="golomb"
1349 sipr_decoder_select="lsp"
1350 snow_decoder_select="dwt"
1351 snow_encoder_select="aandct dwt"
1352 sonic_decoder_select="golomb"
1353 sonic_encoder_select="golomb"
1354 sonic_ls_encoder_select="golomb"
1355 svq1_encoder_select="aandct"
1356 svq3_decoder_select="golomb h264dsp h264pred"
1357 svq3_decoder_suggest="zlib"
1358 theora_decoder_select="vp3_decoder"
1359 tiff_decoder_suggest="zlib"
1360 tiff_encoder_suggest="zlib"
1361 truehd_decoder_select="mlp_decoder"
1362 tscc_decoder_select="zlib"
1363 twinvq_decoder_select="mdct lsp sinewin"
1364 vc1_decoder_select="h263_decoder"
1365 vc1_crystalhd_decoder_select="crystalhd"
1366 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1367 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1368 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1369 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1370 vorbis_decoder_select="mdct"
1371 vorbis_encoder_select="mdct"
1372 vp6_decoder_select="huffman"
1373 vp6a_decoder_select="vp6_decoder"
1374 vp6f_decoder_select="vp6_decoder"
1375 vp8_decoder_select="h264pred"
1376 wmapro_decoder_select="mdct sinewin"
1377 wmav1_decoder_select="mdct sinewin"
1378 wmav1_encoder_select="mdct sinewin"
1379 wmav2_decoder_select="mdct sinewin"
1380 wmav2_encoder_select="mdct sinewin"
1381 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1382 wmv1_decoder_select="h263_decoder"
1383 wmv1_encoder_select="h263_encoder"
1384 wmv2_decoder_select="h263_decoder"
1385 wmv2_encoder_select="h263_encoder"
1386 wmv3_decoder_select="vc1_decoder"
1387 wmv3_crystalhd_decoder_select="crystalhd"
1388 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1389 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1390 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1391 zlib_decoder_select="zlib"
1392 zlib_encoder_select="zlib"
1393 zmbv_decoder_select="zlib"
1394 zmbv_encoder_select="zlib"
1395
1396 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1397 vaapi_deps="va_va_h"
1398 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1399
1400 # parsers
1401 h264_parser_select="golomb h264dsp h264pred"
1402
1403 # external libraries
1404 libcelt_decoder_deps="libcelt"
1405 libdirac_decoder_deps="libdirac !libschroedinger"
1406 libdirac_encoder_deps="libdirac"
1407 libfaac_encoder_deps="libfaac"
1408 libgsm_decoder_deps="libgsm"
1409 libgsm_encoder_deps="libgsm"
1410 libgsm_ms_decoder_deps="libgsm"
1411 libgsm_ms_encoder_deps="libgsm"
1412 libmp3lame_encoder_deps="libmp3lame"
1413 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1414 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1415 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1416 libopenjpeg_decoder_deps="libopenjpeg"
1417 libschroedinger_decoder_deps="libschroedinger"
1418 libschroedinger_encoder_deps="libschroedinger"
1419 libspeex_decoder_deps="libspeex"
1420 libspeex_encoder_deps="libspeex"
1421 libtheora_encoder_deps="libtheora"
1422 libvo_aacenc_encoder_deps="libvo_aacenc"
1423 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1424 libvorbis_encoder_deps="libvorbis"
1425 libvpx_decoder_deps="libvpx"
1426 libvpx_encoder_deps="libvpx"
1427 libx264_encoder_deps="libx264"
1428 libxavs_encoder_deps="libxavs"
1429 libxvid_encoder_deps="libxvid"
1430
1431 # demuxers / muxers
1432 ac3_demuxer_select="ac3_parser"
1433 asf_stream_muxer_select="asf_muxer"
1434 avisynth_demuxer_deps="avisynth"
1435 dirac_demuxer_select="dirac_parser"
1436 eac3_demuxer_select="ac3_parser"
1437 flac_demuxer_select="flac_parser"
1438 ipod_muxer_select="mov_muxer"
1439 libnut_demuxer_deps="libnut"
1440 libnut_muxer_deps="libnut"
1441 matroska_audio_muxer_select="matroska_muxer"
1442 matroska_demuxer_suggest="zlib bzlib"
1443 mov_demuxer_suggest="zlib"
1444 mp3_demuxer_select="mpegaudio_parser"
1445 mp4_muxer_select="mov_muxer"
1446 mpegtsraw_demuxer_select="mpegts_demuxer"
1447 mxf_d10_muxer_select="mxf_muxer"
1448 ogg_demuxer_select="golomb"
1449 psp_muxer_select="mov_muxer"
1450 rtp_demuxer_select="sdp_demuxer"
1451 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1452 rtsp_demuxer_select="http_protocol rtpdec"
1453 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1454 sap_demuxer_select="sdp_demuxer"
1455 sap_muxer_select="rtp_muxer rtp_protocol"
1456 sdp_demuxer_select="rtpdec"
1457 spdif_muxer_select="aac_parser"
1458 tg2_muxer_select="mov_muxer"
1459 tgp_muxer_select="mov_muxer"
1460 w64_demuxer_deps="wav_demuxer"
1461
1462 # indevs / outdevs
1463 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1464 alsa_outdev_deps="alsa_asoundlib_h"
1465 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1466 dshow_indev_deps="IBaseFilter"
1467 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1468 dv1394_indev_deps="dv1394 dv_demuxer"
1469 fbdev_indev_deps="linux_fb_h"
1470 jack_indev_deps="jack_jack_h sem_timedwait"
1471 libdc1394_indev_deps="libdc1394"
1472 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1473 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1474 sdl_outdev_deps="sdl"
1475 sndio_indev_deps="sndio_h"
1476 sndio_outdev_deps="sndio_h"
1477 v4l_indev_deps="linux_videodev_h"
1478 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1479 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1480 vfwcap_indev_extralibs="-lavicap32"
1481 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1482 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1483
1484 # protocols
1485 gopher_protocol_deps="network"
1486 http_protocol_deps="network"
1487 http_protocol_select="tcp_protocol"
1488 mmsh_protocol_select="http_protocol"
1489 mmst_protocol_deps="network"
1490 rtmp_protocol_select="tcp_protocol"
1491 rtp_protocol_select="udp_protocol"
1492 tcp_protocol_deps="network"
1493 udp_protocol_deps="network"
1494
1495 # filters
1496 blackframe_filter_deps="gpl"
1497 cropdetect_filter_deps="gpl"
1498 drawtext_filter_deps="libfreetype"
1499 frei0r_filter_deps="frei0r dlopen strtok_r"
1500 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1501 hqdn3d_filter_deps="gpl"
1502 movie_filter_deps="avcodec avformat"
1503 mp_filter_deps="gpl avcodec"
1504 negate_filter_deps="lut_filter"
1505 ocv_filter_deps="libopencv"
1506 scale_filter_deps="swscale"
1507 yadif_filter_deps="gpl"
1508
1509 # libraries
1510 avdevice_deps="avcodec avformat"
1511 avformat_deps="avcodec"
1512 postproc_deps="gpl"
1513
1514 # programs
1515 ffmpeg_deps="avcodec avformat swscale"
1516 ffmpeg_select="buffer_filter buffersink_filter"
1517 ffplay_deps="avcodec avformat swscale sdl"
1518 ffplay_select="rdft"
1519 ffprobe_deps="avcodec avformat"
1520 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1521 ffserver_extralibs='$ldl'
1522
1523 doc_deps="texi2html"
1524
1525 # tests
1526
1527 test_deps(){
1528     suf1=$1
1529     suf2=$2
1530     shift 2
1531     for v; do
1532         dep=${v%=*}
1533         tests=${v#*=}
1534         for name in ${tests}; do
1535             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1536         done
1537     done
1538 }
1539
1540 set_ne_test_deps(){
1541     eval ${1}_be_test_deps="bigendian"
1542     eval ${1}_le_test_deps="!bigendian"
1543 }
1544
1545 test_deps _encoder _decoder                                             \
1546     adpcm_g726=g726                                                     \
1547     adpcm_ima_qt                                                        \
1548     adpcm_ima_wav                                                       \
1549     adpcm_ms                                                            \
1550     adpcm_swf                                                           \
1551     adpcm_yamaha=adpcm_yam                                              \
1552     alac                                                                \
1553     asv1                                                                \
1554     asv2                                                                \
1555     bmp                                                                 \
1556     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1557     dvvideo="dv dv50"                                                   \
1558     ffv1                                                                \
1559     flac                                                                \
1560     flashsv                                                             \
1561     flv                                                                 \
1562     gif                                                                 \
1563     h261                                                                \
1564     h263="h263 h263p"                                                   \
1565     huffyuv                                                             \
1566     jpegls                                                              \
1567     mjpeg="jpg mjpeg ljpeg"                                             \
1568     mp2                                                                 \
1569     mpeg1video="mpeg mpeg1b"                                            \
1570     mpeg2video="mpeg2 mpeg2thread"                                      \
1571     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1572     msmpeg4v3=msmpeg4                                                   \
1573     msmpeg4v2                                                           \
1574     pbm=pbmpipe                                                         \
1575     pcx                                                                 \
1576     pgm="pgm pgmpipe"                                                   \
1577     png                                                                 \
1578     ppm="ppm ppmpipe"                                                   \
1579     rawvideo="rgb yuv"                                                  \
1580     roq                                                                 \
1581     rv10                                                                \
1582     rv20                                                                \
1583     sgi                                                                 \
1584     snow="snow snowll"                                                  \
1585     svq1                                                                \
1586     targa=tga                                                           \
1587     tiff                                                                \
1588     wmav1                                                               \
1589     wmav2                                                               \
1590     wmv1                                                                \
1591     wmv2                                                                \
1592
1593 test_deps _muxer _demuxer                                               \
1594     aiff                                                                \
1595     pcm_alaw=alaw                                                       \
1596     asf                                                                 \
1597     au                                                                  \
1598     avi                                                                 \
1599     dv=dv_fmt                                                           \
1600     ffm                                                                 \
1601     flv=flv_fmt                                                         \
1602     gxf                                                                 \
1603     matroska=mkv                                                        \
1604     mmf                                                                 \
1605     mov                                                                 \
1606     pcm_mulaw=mulaw                                                     \
1607     mxf                                                                 \
1608     nut                                                                 \
1609     ogg                                                                 \
1610     rawvideo=pixfmt                                                     \
1611     rm                                                                  \
1612     swf                                                                 \
1613     mpegts=ts                                                           \
1614     voc                                                                 \
1615     wav                                                                 \
1616     yuv4mpegpipe=yuv4mpeg                                               \
1617
1618 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1619 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1620
1621 set_ne_test_deps pixdesc
1622 set_ne_test_deps pixfmts_copy
1623 set_ne_test_deps pixfmts_crop
1624 set_ne_test_deps pixfmts_hflip
1625 set_ne_test_deps pixfmts_null
1626 set_ne_test_deps pixfmts_pad
1627 set_ne_test_deps pixfmts_scale
1628 set_ne_test_deps pixfmts_vflip
1629
1630 # default parameters
1631
1632 logfile="config.log"
1633
1634 # installation paths
1635 prefix_default="/usr/local"
1636 bindir_default='${prefix}/bin'
1637 datadir_default='${prefix}/share/ffmpeg'
1638 incdir_default='${prefix}/include'
1639 libdir_default='${prefix}/lib'
1640 mandir_default='${prefix}/share/man'
1641 shlibdir_default="$libdir_default"
1642
1643 # toolchain
1644 ar_default="ar"
1645 cc_default="gcc"
1646 cc_version=\"unknown\"
1647 host_cc_default="gcc"
1648 install="install"
1649 ln_s="ln -sf"
1650 nm_default="nm"
1651 objformat="elf"
1652 pkg_config_default=pkg-config
1653 ranlib="ranlib"
1654 strip_default="strip"
1655 yasmexe="yasm"
1656 nogas=":"
1657
1658 nm_opts='-g'
1659
1660 # machine
1661 arch_default=$(uname -m)
1662 cpu="generic"
1663
1664 # OS
1665 target_os_default=$(tolower $(uname -s))
1666 host_os=$target_os_default
1667
1668 # configurable options
1669 enable avcodec
1670 enable avdevice
1671 enable avfilter
1672 enable avformat
1673 enable avutil
1674 enable asm
1675 enable debug
1676 enable doc
1677 enable fastdiv
1678 enable ffmpeg
1679 enable ffplay
1680 enable ffprobe
1681 enable ffserver
1682 enable network
1683 enable optimizations
1684 enable postproc
1685 enable protocols
1686 enable static
1687 enable stripping
1688 enable swscale
1689 enable swscale_alpha
1690
1691 # build settings
1692 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1693 FFSERVERLDFLAGS=-Wl,-E
1694 LIBPREF="lib"
1695 LIBSUF=".a"
1696 FULLNAME='$(NAME)$(BUILDSUF)'
1697 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1698 SLIBPREF="lib"
1699 SLIBSUF=".so"
1700 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1701 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1702 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1703 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1704
1705 CC_O='-o $@'
1706
1707 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1708 host_libs='-lm'
1709
1710 target_path='$(CURDIR)'
1711
1712 # since the object filename is not given with the -MM flag, the compiler
1713 # is only able to print the basename, and we must add the path ourselves
1714 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1715 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1716
1717 # find source path
1718 if test -f configure; then
1719     source_path="$(pwd)"
1720     disable source_path_used
1721 else
1722     source_path=$(cd $(dirname "$0"); pwd)
1723     enable source_path_used
1724     echo "$source_path" | grep -q '[[:blank:]]' &&
1725         die "Out of tree builds are impossible with whitespace in source path."
1726     test -e "$source_path/config.h" &&
1727         die "Out of tree builds are impossible with config.h in source dir."
1728 fi
1729
1730 for v in "$@"; do
1731     r=${v#*=}
1732     l=${v%"$r"}
1733     r=$(sh_quote "$r")
1734     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1735 done
1736
1737 find_things(){
1738     thing=$1
1739     pattern=$2
1740     file=$source_path/$3
1741     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1742 }
1743
1744 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1745 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1746 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1747 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1748 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1749 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1750 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1751 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1752 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1753 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1754 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1755
1756 find_tests(){
1757     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1758 }
1759
1760 ACODEC_TESTS=$(find_tests acodec)
1761 VCODEC_TESTS=$(find_tests vsynth1)
1762 LAVF_TESTS=$(find_tests lavf)
1763 LAVFI_TESTS=$(find_tests lavfi)
1764 SEEK_TESTS=$(find_tests seek seek_)
1765
1766 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1767
1768 for n in $COMPONENT_LIST; do
1769     v=$(toupper ${n%s})_LIST
1770     eval enable \$$v
1771     eval ${n}_if_any="\$$v"
1772 done
1773
1774 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1775
1776 die_unknown(){
1777     echo "Unknown option \"$1\"."
1778     echo "See $0 --help for available options."
1779     exit 1
1780 }
1781
1782 show_list() {
1783     suffix=_$1
1784     shift
1785     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1786     exit 0
1787 }
1788
1789 for opt do
1790     optval="${opt#*=}"
1791     case "$opt" in
1792     --extra-ldflags=*) add_ldflags $optval
1793     ;;
1794     --extra-libs=*) add_extralibs $optval
1795     ;;
1796     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1797     ;;
1798     --enable-debug=*) debuglevel="$optval"
1799     ;;
1800     --disable-everything)
1801     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1802     ;;
1803     --enable-*=*|--disable-*=*)
1804     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1805     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1806     eval list=\$$(toupper $thing)_LIST
1807     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1808     $action $(filter "$name" $list)
1809     ;;
1810     --enable-?*|--disable-?*)
1811     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1812     if is_in $option $COMPONENT_LIST; then
1813         test $action = disable && action=unset
1814         eval $action \$$(toupper ${option%s})_LIST
1815     elif is_in $option $CMDLINE_SELECT; then
1816         $action $option
1817     else
1818         die_unknown $opt
1819     fi
1820     ;;
1821     --list-*)
1822         NAME="${opt#--list-}"
1823         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1824         NAME=${NAME%s}
1825         eval show_list $NAME \$$(toupper $NAME)_LIST
1826     ;;
1827     --help|-h) show_help
1828     ;;
1829     *)
1830     optname="${opt%%=*}"
1831     optname="${optname#--}"
1832     optname=$(echo "$optname" | sed 's/-/_/g')
1833     if is_in $optname $CMDLINE_SET; then
1834         eval $optname='$optval'
1835     elif is_in $optname $CMDLINE_APPEND; then
1836         append $optname "$optval"
1837     else
1838          die_unknown $opt
1839     fi
1840     ;;
1841     esac
1842 done
1843
1844 disabled logging && logfile=/dev/null
1845
1846 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1847 set >> $logfile
1848
1849 test -n "$cross_prefix" && enable cross_compile
1850
1851 if enabled cross_compile; then
1852     test -n "$arch" && test -n "$target_os" ||
1853         die "Must specify target arch and OS when cross-compiling"
1854 fi
1855
1856 set_default arch target_os
1857
1858 ar_default="${cross_prefix}${ar_default}"
1859 cc_default="${cross_prefix}${cc_default}"
1860 nm_default="${cross_prefix}${nm_default}"
1861 pkg_config_default="${cross_prefix}${pkg_config_default}"
1862 ranlib="${cross_prefix}${ranlib}"
1863 strip_default="${cross_prefix}${strip_default}"
1864
1865 sysinclude_default="${sysroot}/usr/include"
1866
1867 set_default cc nm pkg_config strip sysinclude
1868 enabled cross_compile || host_cc_default=$cc
1869 set_default host_cc
1870
1871 if ! $pkg_config --version >/dev/null 2>&1; then
1872     warn "$pkg_config not found, library detection may fail."
1873     pkg_config=false
1874 fi
1875
1876 exesuf() {
1877     case $1 in
1878         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1879     esac
1880 }
1881
1882 EXESUF=$(exesuf $target_os)
1883 HOSTEXESUF=$(exesuf $host_os)
1884
1885 # set temporary file name
1886 : ${TMPDIR:=$TEMPDIR}
1887 : ${TMPDIR:=$TMP}
1888 : ${TMPDIR:=/tmp}
1889
1890 if ! check_cmd mktemp -u XXXXXX; then
1891     # simple replacement for missing mktemp
1892     # NOT SAFE FOR GENERAL USE
1893     mktemp(){
1894         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1895     }
1896 fi
1897
1898 tmpfile(){
1899     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1900         (set -C; exec > $tmp) 2>/dev/null ||
1901         die "Unable to create temporary file in $TMPDIR."
1902     append TMPFILES $tmp
1903     eval $1=$tmp
1904 }
1905
1906 trap 'rm -f -- $TMPFILES' EXIT
1907
1908 tmpfile TMPC  .c
1909 tmpfile TMPE  $EXESUF
1910 tmpfile TMPH  .h
1911 tmpfile TMPO  .o
1912 tmpfile TMPS  .S
1913 tmpfile TMPV  .ver
1914 tmpfile TMPSH .sh
1915 tmpfile TMPASM .asm
1916
1917 unset -f mktemp
1918
1919 chmod +x $TMPE
1920
1921 # make sure we can execute files in $TMPDIR
1922 cat > $TMPSH 2>> $logfile <<EOF
1923 #! /bin/sh
1924 EOF
1925 chmod +x $TMPSH >> $logfile 2>&1
1926 if ! $TMPSH >> $logfile 2>&1; then
1927     cat <<EOF
1928 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1929 variable to another directory and make sure that it is not mounted noexec.
1930 EOF
1931     die "Sanity test failed."
1932 fi
1933
1934 filter_cflags=echo
1935 filter_cppflags=echo
1936 filter_asflags=echo
1937
1938 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1939     cc_type=llvm_gcc
1940     cc_version=__VERSION__
1941     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1942     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1943     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1944     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1945     speed_cflags='-O3'
1946     size_cflags='-Os'
1947 elif $cc -v 2>&1 | grep -qi ^gcc; then
1948     cc_type=gcc
1949     cc_version=__VERSION__
1950     gcc_version=$($cc --version | head -n1)
1951     gcc_basever=$($cc -dumpversion)
1952     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1953     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1954     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1955     if ! $cc -dumpversion | grep -q '^2\.'; then
1956         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1957         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1958     fi
1959     speed_cflags='-O3'
1960     size_cflags='-Os'
1961 elif $cc --version 2>/dev/null | grep -q Intel; then
1962     cc_type=icc
1963     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1964     cc_ident=$($cc --version | head -n1)
1965     icc_version=$($cc -dumpversion)
1966     CC_DEPFLAGS='-MMD'
1967     AS_DEPFLAGS='-MMD'
1968     speed_cflags='-O3'
1969     size_cflags='-Os'
1970     noopt_cflags='-O1'
1971 elif $cc -v 2>&1 | grep -q xlc; then
1972     cc_type=xlc
1973     cc_version="AV_STRINGIFY(__IBMC__)"
1974     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1975     speed_cflags='-O5'
1976     size_cflags='-O5 -qcompact'
1977 elif $cc -V 2>/dev/null | grep -q Compaq; then
1978     cc_type=ccc
1979     cc_version="AV_STRINGIFY(__DECC_VER)"
1980     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1981     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1982     debuglevel=3
1983     add_ldflags -Wl,-z,now # calls to libots crash without this
1984     speed_cflags='-fast'
1985     size_cflags='-O1'
1986 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1987     test -d "$sysroot" || die "No valid sysroot specified."
1988     cc_type=armcc
1989     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1990     cc_ident=$($cc --vsn | head -n1)
1991     armcc_conf="$PWD/armcc.conf"
1992     $cc --arm_linux_configure                 \
1993         --arm_linux_config_file="$armcc_conf" \
1994         --configure_sysroot="$sysroot"        \
1995         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1996         die "Error creating armcc configuration file."
1997     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1998     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1999     as_default="${cross_prefix}gcc"
2000     CC_DEPFLAGS='-MMD'
2001     AS_DEPFLAGS='-MMD'
2002     speed_cflags='-O3'
2003     size_cflags='-Os'
2004     filter_asflags="filter_out -W${armcc_opt}*"
2005 elif $cc -version 2>/dev/null | grep -q TMS470; then
2006     cc_type=tms470
2007     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2008     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2009     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2010     CC_O='-fr=$(@D)'
2011     as_default="${cross_prefix}gcc"
2012     ld_default="${cross_prefix}gcc"
2013     TMPO=$(basename $TMPC .c).o
2014     append TMPFILES $TMPO
2015     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2016     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2017     AS_DEPFLAGS='-MMD'
2018     speed_cflags='-O3 -mf=5'
2019     size_cflags='-O3 -mf=2'
2020     filter_cflags=tms470_flags
2021     tms470_flags(){
2022         for flag; do
2023             case $flag in
2024                 -march=*|-mcpu=*)
2025                     case "${flag#*=}" in
2026                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2027                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2028                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2029                         armv6*|arm11*)          echo -mv=6   ;;
2030                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2031                                                 echo -mv=5e  ;;
2032                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2033                     esac
2034                     ;;
2035                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2036                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2037                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2038                 -msoft-float)   echo --float_support=vfplib       ;;
2039                 -O[0-3]|-mf=*)  echo $flag                        ;;
2040                 -g)             echo -g -mn                       ;;
2041                 -pds=*)         echo $flag                        ;;
2042             esac
2043         done
2044     }
2045 elif $cc -v 2>&1 | grep -q clang; then
2046     cc_type=clang
2047     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2048         cc_version=__clang_version__ || cc_version=__VERSION__
2049     cc_ident=$($cc --version | head -n1)
2050     CC_DEPFLAGS='-MMD'
2051     AS_DEPFLAGS='-MMD'
2052     speed_cflags='-O3'
2053     size_cflags='-Os'
2054 elif $cc -V 2>&1 | grep -q Sun; then
2055     cc_type=suncc
2056     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2057     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2058     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2059     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2060     speed_cflags='-O5'
2061     size_cflags='-O5 -xspace'
2062     filter_cflags=suncc_flags
2063     suncc_flags(){
2064         for flag; do
2065             case $flag in
2066                 -march=*|-mcpu=*)
2067                     case "${flag#*=}" in
2068                         native)                   echo -xtarget=native       ;;
2069                         v9|niagara)               echo -xarch=sparc          ;;
2070                         ultrasparc)               echo -xarch=sparcvis       ;;
2071                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2072                         i586|pentium)             echo -xchip=pentium        ;;
2073                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2074                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2075                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2076                         pentium4*)          echo -xtarget=pentium4           ;;
2077                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2078                         *-sse3)             echo -xarch=sse3                 ;;
2079                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2080                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2081                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2082                         k8|opteron|athlon64|athlon-fx)
2083                                                   echo -xarch=sse2a          ;;
2084                         athlon*)                  echo -xarch=pentium_proa   ;;
2085                     esac
2086                     ;;
2087                 -std=c99)             echo -xc99              ;;
2088                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2089                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2090                 -W*,*)                echo $flag              ;;
2091                 -f*-*|-W*)                                    ;;
2092                 *)                    echo $flag              ;;
2093             esac
2094         done
2095     }
2096 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2097     cc_type=pathscale
2098     cc_version=__PATHSCALE__
2099     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2100     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2101     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2102     speed_cflags='-O2'
2103     size_cflags='-Os'
2104     filter_cflags='filter_out -Wdisabled-optimization'
2105 elif $cc -v 2>&1 | grep -q Open64; then
2106     cc_type=open64
2107     cc_version=__OPEN64__
2108     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2109     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2110     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2111     speed_cflags='-O2'
2112     size_cflags='-Os'
2113     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2114 fi
2115
2116 test -n "$cc_type" && enable $cc_type ||
2117     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2118
2119 : ${as_default:=$cc}
2120 : ${dep_cc_default:=$cc}
2121 : ${ld_default:=$cc}
2122 set_default ar as dep_cc ld
2123
2124 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2125 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2126
2127 add_cflags $extra_cflags
2128 add_asflags $extra_cflags
2129
2130 if test -n "$sysroot"; then
2131     case "$cc_type" in
2132         gcc|llvm_gcc|clang)
2133             add_cppflags --sysroot="$sysroot"
2134             add_ldflags --sysroot="$sysroot"
2135         ;;
2136         tms470)
2137             add_cppflags -I"$sysinclude"
2138             add_ldflags  --sysroot="$sysroot"
2139         ;;
2140     esac
2141 fi
2142
2143 if test "$cpu" = host; then
2144     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2145
2146     case "$cc_type" in
2147         gcc|llvm_gcc)
2148             check_native(){
2149                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2150                 sed -n "/$1=/{
2151                             s/.*$1=\\([^ ]*\\).*/\\1/
2152                             p
2153                             q
2154                         }" $TMPE
2155             }
2156             cpu=$(check_native -march || check_native -mcpu)
2157         ;;
2158     esac
2159
2160     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2161 fi
2162
2163 # Deal with common $arch aliases
2164 case "$arch" in
2165     arm*)
2166         arch="arm"
2167     ;;
2168     mips|mipsel|IP*)
2169         arch="mips"
2170     ;;
2171     mips64*)
2172         arch="mips"
2173         subarch="mips64"
2174     ;;
2175     parisc|hppa)
2176         arch="parisc"
2177     ;;
2178     parisc64|hppa64)
2179         arch="parisc"
2180         subarch="parisc64"
2181     ;;
2182     "Power Macintosh"|ppc|powerpc)
2183         arch="ppc"
2184     ;;
2185     ppc64|powerpc64)
2186         arch="ppc"
2187         subarch="ppc64"
2188     ;;
2189     s390|s390x)
2190         arch="s390"
2191     ;;
2192     sh4|sh)
2193         arch="sh4"
2194     ;;
2195     sun4u|sparc64)
2196         arch="sparc"
2197         subarch="sparc64"
2198     ;;
2199     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2200         arch="x86"
2201     ;;
2202 esac
2203
2204 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2205 enable $arch
2206
2207 # Add processor-specific flags
2208 if test "$cpu" = generic; then
2209     : do nothing
2210 elif enabled ppc; then
2211
2212     case $(tolower $cpu) in
2213         601|ppc601|powerpc601)
2214             cpuflags="-mcpu=601"
2215             disable altivec
2216         ;;
2217         603*|ppc603*|powerpc603*)
2218             cpuflags="-mcpu=603"
2219             disable altivec
2220         ;;
2221         604*|ppc604*|powerpc604*)
2222             cpuflags="-mcpu=604"
2223             disable altivec
2224         ;;
2225         g3|75*|ppc75*|powerpc75*)
2226             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2227             disable altivec
2228         ;;
2229         g4|745*|ppc745*|powerpc745*)
2230             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2231         ;;
2232         74*|ppc74*|powerpc74*)
2233             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2234         ;;
2235         g5|970|ppc970|powerpc970|power4*)
2236             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2237         ;;
2238         cell)
2239             cpuflags="-mcpu=cell"
2240             enable ldbrx
2241         ;;
2242         e500v2)
2243             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2244             disable altivec
2245         ;;
2246         e500)
2247             cpuflags="-mcpu=8540 -mhard-float"
2248             disable altivec
2249         ;;
2250     esac
2251
2252 elif enabled x86; then
2253
2254     case $cpu in
2255         i[345]86|pentium)
2256             cpuflags="-march=$cpu"
2257             disable mmx
2258         ;;
2259         # targets that do NOT support conditional mov (cmov)
2260         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2261             cpuflags="-march=$cpu"
2262             disable cmov
2263         ;;
2264         # targets that do support conditional mov (cmov)
2265         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2266             cpuflags="-march=$cpu"
2267             enable cmov
2268             enable fast_cmov
2269         ;;
2270         # targets that do support conditional mov but on which it's slow
2271         pentium4|pentium4m|prescott|nocona)
2272             cpuflags="-march=$cpu"
2273             enable cmov
2274             disable fast_cmov
2275         ;;
2276     esac
2277
2278 elif enabled sparc; then
2279
2280     case $cpu in
2281         niagara)
2282             cpuflags="-mcpu=$cpu"
2283             disable vis
2284         ;;
2285         sparc64)
2286             cpuflags="-mcpu=v9"
2287         ;;
2288     esac
2289
2290 elif enabled arm; then
2291
2292     case $cpu in
2293         armv*)
2294             cpuflags="-march=$cpu"
2295             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2296         ;;
2297         *)
2298             cpuflags="-mcpu=$cpu"
2299             case $cpu in
2300                 cortex-a*)                               subarch=armv7a  ;;
2301                 cortex-r*)                               subarch=armv7r  ;;
2302                 cortex-m*)                               subarch=armv7m  ;;
2303                 arm11*)                                  subarch=armv6   ;;
2304                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2305                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2306             esac
2307         ;;
2308     esac
2309
2310 elif enabled alpha; then
2311
2312     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2313
2314 elif enabled bfin; then
2315
2316     cpuflags="-mcpu=$cpu"
2317
2318 elif enabled mips; then
2319
2320     cpuflags="-march=$cpu"
2321
2322 elif enabled avr32; then
2323
2324     case $cpu in
2325         ap7[02]0[0-2])
2326             subarch="avr32_ap"
2327             cpuflags="-mpart=$cpu"
2328         ;;
2329         ap)
2330             subarch="avr32_ap"
2331             cpuflags="-march=$cpu"
2332         ;;
2333         uc3[ab]*)
2334             subarch="avr32_uc"
2335             cpuflags="-mcpu=$cpu"
2336         ;;
2337         uc)
2338             subarch="avr32_uc"
2339             cpuflags="-march=$cpu"
2340         ;;
2341     esac
2342
2343 fi
2344
2345 add_cflags $cpuflags
2346 add_asflags $cpuflags
2347
2348 # compiler sanity check
2349 check_exec <<EOF
2350 int main(void){ return 0; }
2351 EOF
2352 if test "$?" != 0; then
2353     echo "$cc is unable to create an executable file."
2354     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2355         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2356         echo "Only do this if you know what cross compiling means."
2357     fi
2358     die "C compiler test failed."
2359 fi
2360
2361 add_cppflags -D_ISOC99_SOURCE
2362 check_cflags -std=c99
2363 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2364 #include <stdlib.h>
2365 EOF
2366 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2367 #include <stdlib.h>
2368 EOF
2369
2370 check_host_cflags -std=c99
2371 check_host_cflags -Wall
2372
2373 case "$arch" in
2374     alpha|ia64|mips|parisc|sparc)
2375         spic=$shared
2376     ;;
2377     x86)
2378         subarch="x86_32"
2379         check_cc <<EOF && subarch="x86_64"
2380         int test[(int)sizeof(char*) - 7];
2381 EOF
2382         if test "$subarch" = "x86_64"; then
2383             spic=$shared
2384         fi
2385     ;;
2386 esac
2387
2388 enable $subarch
2389 enabled spic && enable pic
2390
2391 # OS specific
2392 case $target_os in
2393     haiku)
2394         prefix_default="/boot/common"
2395         network_extralibs="-lnetwork"
2396         host_libs=
2397         ;;
2398     sunos)
2399         FFSERVERLDFLAGS=""
2400         SHFLAGS='-shared -Wl,-h,$$(@F)'
2401         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2402         network_extralibs="-lsocket -lnsl"
2403         add_cppflags -D__EXTENSIONS__
2404         nm_opts='-P -g'
2405         ;;
2406     netbsd)
2407         disable symver
2408         oss_indev_extralibs="-lossaudio"
2409         oss_outdev_extralibs="-lossaudio"
2410         ;;
2411     openbsd)
2412         enable malloc_aligned
2413         # On OpenBSD 4.5. the compiler does not use PIC unless
2414         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2415         # however the generated executable will not do anything
2416         # (simply quits with exit-code 1, no crash, no output).
2417         # Thus explicitly enable PIC here.
2418         enable pic
2419         disable symver
2420         SHFLAGS='-shared'
2421         oss_indev_extralibs="-lossaudio"
2422         oss_outdev_extralibs="-lossaudio"
2423         ;;
2424     dragonfly)
2425         enable malloc_aligned
2426         disable symver
2427         ;;
2428     freebsd)
2429         enable malloc_aligned
2430         ;;
2431     bsd/os)
2432         add_extralibs -lpoll -lgnugetopt
2433         strip="strip -d"
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         strip="${strip} -x"
2442         add_ldflags -Wl,-dynamic,-search_paths_first
2443         SLIBSUF=".dylib"
2444         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2445         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2446         FFSERVERLDFLAGS=-Wl,-bind_at_load
2447         objformat="macho"
2448         enabled x86_64 && objformat="macho64"
2449         enabled_any pic shared ||
2450             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2451         ;;
2452     mingw32*)
2453         if test $target_os = "mingw32ce"; then
2454             disable network
2455         else
2456             target_os=mingw32
2457         fi
2458         LIBTARGET=i386
2459         if enabled x86_64; then
2460             enable malloc_aligned
2461             LIBTARGET=x64
2462         elif enabled arm; then
2463             LIBTARGET=arm-wince
2464         fi
2465         shlibdir_default="$bindir_default"
2466         SLIBPREF=""
2467         SLIBSUF=".dll"
2468         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2469         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2470         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2471         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2472             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2473             install -d "$(LIBDIR)"; \
2474             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2475         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2476         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'
2477         objformat="win32"
2478         enable dos_paths
2479         check_cflags -fno-common
2480         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2481                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2482                 die "ERROR: MinGW runtime version must be >= 3.15."
2483         add_cppflags -U__STRICT_ANSI__
2484         ;;
2485     cygwin*)
2486         target_os=cygwin
2487         shlibdir_default="$bindir_default"
2488         SLIBPREF="cyg"
2489         SLIBSUF=".dll"
2490         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2491         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2492         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2493         objformat="win32"
2494         enable dos_paths
2495         check_cflags -fno-common
2496         add_cppflags -U__STRICT_ANSI__
2497         ;;
2498     *-dos|freedos|opendos)
2499         network_extralibs="-lsocket"
2500         objformat="coff"
2501         enable dos_paths
2502         add_cppflags -U__STRICT_ANSI__
2503         ;;
2504     linux)
2505         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2506         enable dv1394
2507         ;;
2508     irix*)
2509         target_os=irix
2510         ranlib="echo ignoring ranlib"
2511         ;;
2512     os/2*)
2513         strip="lxlite -CS"
2514         ln_s="cp -f"
2515         objformat="aout"
2516         add_cppflags -D_GNU_SOURCE
2517         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2518         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2519         FFSERVERLDFLAGS=""
2520         LIBSUF="_s.a"
2521         SLIBPREF=""
2522         SLIBSUF=".dll"
2523         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2524         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2525         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2526           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2527           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2528           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2529           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2530           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2531         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2532           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2533         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2534         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2535         enable dos_paths
2536         ;;
2537     gnu/kfreebsd)
2538         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2539         ;;
2540     gnu)
2541         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2542         ;;
2543     qnx)
2544         add_cppflags -D_QNX_SOURCE
2545         network_extralibs="-lsocket"
2546         ;;
2547     symbian)
2548         SLIBSUF=".dll"
2549         enable dos_paths
2550         add_cflags --include=$sysinclude/gcce/gcce.h
2551         ;;
2552     none)
2553         ;;
2554     *)
2555         die "Unknown OS '$target_os'."
2556         ;;
2557 esac
2558
2559 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2560
2561 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2562
2563 set_default $PATHS_LIST
2564
2565 # we need to build at least one lib type
2566 if ! enabled_any static shared; then
2567     cat <<EOF
2568 At least one library type must be built.
2569 Specify --enable-static to build the static libraries or --enable-shared to
2570 build the shared libraries as well. To only build the shared libraries specify
2571 --disable-static in addition to --enable-shared.
2572 EOF
2573     exit 1;
2574 fi
2575
2576 disabled static && LIBNAME=""
2577
2578 die_license_disabled() {
2579     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2580 }
2581
2582 die_license_disabled gpl libx264
2583 die_license_disabled gpl libxavs
2584 die_license_disabled gpl libxvid
2585 die_license_disabled gpl x11grab
2586
2587 die_license_disabled nonfree libfaac
2588
2589 die_license_disabled version3 libopencore_amrnb
2590 die_license_disabled version3 libopencore_amrwb
2591 die_license_disabled version3 libvo_aacenc
2592 die_license_disabled version3 libvo_amrwbenc
2593
2594 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2595
2596 disabled optimizations || check_cflags -fomit-frame-pointer
2597
2598 enable_pic() {
2599     enable pic
2600     add_cppflags -DPIC
2601     add_cflags   -fPIC
2602     add_asflags  -fPIC
2603 }
2604
2605 enabled pic && enable_pic
2606
2607 check_cc <<EOF || die "Symbol mangling check failed."
2608 int ff_extern;
2609 EOF
2610 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2611 extern_prefix=${sym%%ff_extern*}
2612
2613 check_cc <<EOF && enable inline_asm
2614 void foo(void) { __asm__ volatile ("" ::); }
2615 EOF
2616
2617 _restrict=
2618 for restrict_keyword in restrict __restrict__ __restrict; do
2619     check_cc <<EOF && _restrict=$restrict_keyword && break
2620 void foo(char * $restrict_keyword p);
2621 EOF
2622 done
2623
2624 check_cc <<EOF && enable attribute_packed
2625 struct { int x; } __attribute__((packed)) x;
2626 EOF
2627
2628 check_cc <<EOF && enable attribute_may_alias
2629 union { int x; } __attribute__((may_alias)) x;
2630 EOF
2631
2632 check_cc <<EOF || die "endian test failed"
2633 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2634 EOF
2635 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2636
2637 if enabled alpha; then
2638
2639     check_cflags -mieee
2640
2641 elif enabled arm; then
2642
2643     check_cflags -marm
2644     nogas=die
2645
2646     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2647         enable vfp_args
2648     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2649         case "${cross_prefix:-$cc}" in
2650             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2651             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2652 __asm__ (".eabi_attribute 28, 1");
2653 int main(void) { return 0; }
2654 EOF
2655         esac
2656         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2657     fi
2658
2659     # We have to check if pld is a nop and disable it.
2660     check_asm pld '"pld [r0]"'
2661
2662     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2663     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2664     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2665     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2666     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2667     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2668     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2669
2670     enabled_all armv6t2 shared !pic && enable_pic
2671
2672 elif enabled mips; then
2673
2674     check_asm loongson '"dmult.g $1, $2, $3"'
2675     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2676
2677 elif enabled ppc; then
2678
2679     enable local_aligned_8 local_aligned_16
2680
2681     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2682     check_asm ibm_asm   '"add 0, 0, 0"'
2683     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2684     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2685
2686     # AltiVec flags: The FSF version of GCC differs from the Apple version
2687     if enabled altivec; then
2688         nogas=warn
2689         check_cflags -maltivec -mabi=altivec &&
2690         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2691         check_cflags -faltivec
2692
2693         # check if our compiler supports Motorola AltiVec C API
2694         check_cc <<EOF || disable altivec
2695 $inc_altivec_h
2696 int main(void) {
2697     vector signed int v1, v2, v3;
2698     v1 = vec_add(v2,v3);
2699     return 0;
2700 }
2701 EOF
2702
2703         # check if our compiler supports braces for vector declarations
2704         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2705 $inc_altivec_h
2706 int main (void) { (vector int) {1}; return 0; }
2707 EOF
2708     fi
2709
2710 elif enabled sparc; then
2711
2712     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2713         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2714
2715 elif enabled x86; then
2716
2717     enable local_aligned_8 local_aligned_16
2718
2719     # check whether EBP is available on x86
2720     # As 'i' is stored on the stack, this program will crash
2721     # if the base pointer is used to access it because the
2722     # base pointer is cleared in the inline assembly code.
2723     check_exec_crash <<EOF && enable ebp_available
2724     volatile int i=0;
2725     __asm__ volatile (
2726         "xorl %%ebp, %%ebp"
2727     ::: "%ebp");
2728     return i;
2729 EOF
2730
2731     # check whether EBX is available on x86
2732     check_asm ebx_available '""::"b"(0)' &&
2733         check_asm ebx_available '"":::"%ebx"'
2734
2735     # check whether xmm clobbers are supported
2736     check_asm xmm_clobbers '"":::"%xmm0"'
2737
2738     # check whether more than 10 operands are supported
2739     check_cc <<EOF && enable ten_operands
2740 int main(void) {
2741     int x=0;
2742     __asm__ volatile(
2743         ""
2744         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2745     );
2746     return 0;
2747 }
2748 EOF
2749
2750     # check whether binutils is new enough to compile SSSE3/MMX2
2751     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2752     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2753
2754     check_asm bswap '"bswap %%eax" ::: "%eax"'
2755
2756     if ! disabled_any asm mmx yasm; then
2757         if check_cmd $yasmexe --version; then
2758             enabled x86_64 && yasm_extra="-m amd64"
2759             yasm_debug="-g dwarf2"
2760         elif check_cmd nasm -v; then
2761             yasmexe=nasm
2762             yasm_debug="-g -F dwarf"
2763             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2764         fi
2765
2766         YASMFLAGS="-f $objformat $yasm_extra"
2767         enabled pic               && append YASMFLAGS "-DPIC"
2768         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2769         case "$objformat" in
2770             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2771         esac
2772
2773         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2774             die "yasm not found, use --disable-yasm for a crippled build"
2775         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2776     fi
2777
2778     case "$cpu" in
2779         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2780             disable fast_clz
2781         ;;
2782     esac
2783
2784 fi
2785
2786 if enabled asm; then
2787     as=${gas:=$as}
2788     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2789         $nogas "GNU assembler not found, install gas-preprocessor"
2790 fi
2791
2792 check_ldflags -Wl,--as-needed
2793
2794 if check_func dlopen; then
2795     ldl=
2796 elif check_func dlopen -ldl; then
2797     ldl=-ldl
2798 fi
2799
2800 if enabled network; then
2801     check_type "sys/types.h sys/socket.h" socklen_t
2802     check_type netdb.h "struct addrinfo"
2803     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2804     check_type netinet/in.h "struct sockaddr_in6"
2805     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2806     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2807     # Prefer arpa/inet.h over winsock2
2808     if check_header arpa/inet.h ; then
2809         check_func closesocket
2810     elif check_header winsock2.h ; then
2811         check_func_headers winsock2.h closesocket -lws2 && \
2812             network_extralibs="-lws2" || \
2813         { check_func_headers winsock2.h closesocket -lws2_32 && \
2814             network_extralibs="-lws2_32"; }
2815         check_type ws2tcpip.h socklen_t
2816         check_type ws2tcpip.h "struct addrinfo"
2817         check_type ws2tcpip.h "struct ipv6_mreq"
2818         check_type ws2tcpip.h "struct sockaddr_in6"
2819         check_type ws2tcpip.h "struct sockaddr_storage"
2820         check_struct winsock2.h "struct sockaddr" sa_len
2821     else
2822         disable network
2823     fi
2824 fi
2825
2826 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2827 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2828
2829 check_func  fcntl
2830 check_func  fork
2831 check_func  getaddrinfo $network_extralibs
2832 check_func  gethrtime
2833 check_func  getrusage
2834 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2835 check_func  inet_aton $network_extralibs
2836 check_func  isatty
2837 check_func  localtime_r
2838 check_func  ${malloc_prefix}memalign            && enable memalign
2839 check_func  mkstemp
2840 check_func  mmap
2841 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2842 check_func  setrlimit
2843 check_func  strerror_r
2844 check_func  strtok_r
2845 check_func_headers conio.h kbhit
2846 check_func_headers io.h setmode
2847 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2848 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2849 check_func_headers windows.h GetProcessTimes
2850 check_func_headers windows.h MapViewOfFile
2851 check_func_headers windows.h VirtualAlloc
2852
2853 check_header dlfcn.h
2854 check_header dxva2api.h
2855 check_header libcrystalhd/libcrystalhd_if.h
2856 check_header malloc.h
2857 check_header poll.h
2858 check_header sys/mman.h
2859 check_header sys/resource.h
2860 check_header sys/select.h
2861 check_header termios.h
2862 check_header vdpau/vdpau.h
2863 check_header vdpau/vdpau_x11.h
2864 check_header X11/extensions/XvMClib.h
2865
2866 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2867
2868 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2869 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2870
2871 # check for some common methods of building with pthread support
2872 # do this before the optional library checks as some of them require pthreads
2873 if ! disabled pthreads && ! enabled w32threads; then
2874     enable pthreads
2875     if check_func pthread_create; then
2876         :
2877     elif check_func pthread_create -pthread; then
2878         add_cflags -pthread
2879         add_extralibs -pthread
2880     elif check_func pthread_create -pthreads; then
2881         add_cflags -pthreads
2882         add_extralibs -pthreads
2883     elif check_func pthread_create -lpthreadGC2; then
2884         add_extralibs -lpthreadGC2
2885     elif ! check_lib pthread.h pthread_create -lpthread; then
2886         disable pthreads
2887     fi
2888 fi
2889
2890 for thread in $THREADS_LIST; do
2891     if enabled $thread; then
2892         test -n "$thread_type" &&
2893             die "ERROR: Only one thread type must be selected." ||
2894             thread_type="$thread"
2895     fi
2896 done
2897
2898 check_lib math.h sin -lm && LIBM="-lm"
2899 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2900 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2901
2902 check_mathfunc exp2
2903 check_mathfunc exp2f
2904 check_mathfunc llrint
2905 check_mathfunc llrintf
2906 check_mathfunc log2
2907 check_mathfunc log2f
2908 check_mathfunc lrint
2909 check_mathfunc lrintf
2910 check_mathfunc round
2911 check_mathfunc roundf
2912 check_mathfunc trunc
2913 check_mathfunc truncf
2914
2915 # these are off by default, so fail if requested and not available
2916 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2917 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2918 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2919 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2920 enabled libdirac   && require_pkg_config dirac                          \
2921     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2922     "dirac_decoder_init dirac_encoder_init"
2923 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2924 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2925 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2926 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2927 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2928 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2929 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2930 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2931 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2932 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2933 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2934 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2935 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2936 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2937 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2938 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2939 enabled libvpx     && {
2940     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2941                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2942     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2943                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2944 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2945                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2946                         die "ERROR: libx264 version must be >= 0.115."; }
2947 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2948 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2949 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2950
2951 SDL_CONFIG="${cross_prefix}sdl-config"
2952 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2953     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2954     enable sdl &&
2955     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2956 else
2957   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2958     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2959     sdl_libs=$("${SDL_CONFIG}" --libs)
2960     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2961     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2962     enable sdl &&
2963     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2964   fi
2965 fi
2966 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2967
2968 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2969
2970 check_header linux/fb.h
2971 check_header linux/videodev.h
2972 check_header linux/videodev2.h
2973 check_header sys/videoio.h
2974
2975 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2976 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2977 # w32api 3.12 had it defined wrong
2978 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2979
2980 check_type "dshow.h" IBaseFilter
2981
2982 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2983 { check_header dev/bktr/ioctl_meteor.h &&
2984   check_header dev/bktr/ioctl_bt848.h; } ||
2985 { check_header machine/ioctl_meteor.h &&
2986   check_header machine/ioctl_bt848.h; } ||
2987 { check_header dev/video/meteor/ioctl_meteor.h &&
2988   check_header dev/video/bktr/ioctl_bt848.h; } ||
2989 check_header dev/ic/bt8xx.h
2990
2991 check_header sndio.h
2992 if check_struct sys/soundcard.h audio_buf_info bytes; then
2993     enable_safe sys/soundcard.h
2994 else
2995     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2996     #include <sys/soundcard.h>
2997     audio_buf_info abc;
2998 EOF
2999 fi
3000 check_header soundcard.h
3001
3002 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3003
3004 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3005
3006 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3007
3008 enabled x11grab                         &&
3009 check_header X11/Xlib.h                 &&
3010 check_header X11/extensions/XShm.h      &&
3011 check_header X11/extensions/Xfixes.h    &&
3012 check_func XOpenDisplay -lX11           &&
3013 check_func XShmCreateImage -lX11 -lXext &&
3014 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3015
3016 if ! disabled vaapi; then
3017     check_lib va/va.h vaInitialize -lva && {
3018         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3019         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3020     } || disable vaapi
3021 fi
3022
3023 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3024 check_cpp_condition \
3025     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3026     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3027       disable vdpau; }
3028 fi
3029
3030 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3031
3032 # add some useful compiler flags if supported
3033 check_cflags -Wdeclaration-after-statement
3034 check_cflags -Wall
3035 check_cflags -Wno-parentheses
3036 check_cflags -Wno-switch
3037 check_cflags -Wdisabled-optimization
3038 check_cflags -Wpointer-arith
3039 check_cflags -Wredundant-decls
3040 check_cflags -Wno-pointer-sign
3041 check_cflags -Wcast-qual
3042 check_cflags -Wwrite-strings
3043 check_cflags -Wtype-limits
3044 check_cflags -Wundef
3045 check_cflags -Wmissing-prototypes
3046 check_cflags -Wno-pointer-to-int-cast
3047 enabled extra_warnings && check_cflags -Winline
3048
3049 # add some linker flags
3050 check_ldflags -Wl,--warn-common
3051 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
3052 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3053
3054 echo "X{};" > $TMPV
3055 if test_ldflags -Wl,--version-script,$TMPV; then
3056     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3057     check_cc <<EOF && enable symver_asm_label
3058 void ff_foo(void) __asm__ ("av_foo@VERSION");
3059 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3060 EOF
3061     check_cc <<EOF && enable symver_gnu_asm
3062 __asm__(".symver ff_foo,av_foo@VERSION");
3063 void ff_foo(void) {}
3064 EOF
3065 fi
3066
3067 if enabled small; then
3068     add_cflags $size_cflags
3069 elif enabled optimizations; then
3070     add_cflags $speed_cflags
3071 else
3072     add_cflags $noopt_cflags
3073 fi
3074 check_cflags -fno-math-errno
3075 check_cflags -fno-signed-zeros
3076
3077 if enabled icc; then
3078     # Just warnings, no remarks
3079     check_cflags -w1
3080     # -wd: Disable following warnings
3081     # 144, 167, 556: -Wno-pointer-sign
3082     # 1292: attribute "foo" ignored
3083     # 10006: ignoring unknown option -fno-signed-zeros
3084     # 10148: ignoring unknown option -Wno-parentheses
3085     # 10156: ignoring option '-W'; no argument required
3086     check_cflags -wd144,167,556,1292,10006,10148,10156
3087     # 11030: Warning unknown option --as-needed
3088     # 10156: ignoring option '-export'; no argument required
3089     check_ldflags -wd10156,11030
3090     # Allow to compile with optimizations
3091     check_ldflags -march=$cpu
3092     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3093     enable ebp_available
3094     if enabled x86_32; then
3095         test ${icc_version%%.*} -ge 11 && \
3096             check_cflags -falign-stack=maintain-16-byte || \
3097             disable aligned_stack
3098     fi
3099 elif enabled ccc; then
3100     # disable some annoying warnings
3101     add_cflags -msg_disable cvtu32to64
3102     add_cflags -msg_disable embedcomment
3103     add_cflags -msg_disable needconstext
3104     add_cflags -msg_disable nomainieee
3105     add_cflags -msg_disable ptrmismatch1
3106     add_cflags -msg_disable unreachcode
3107 elif enabled gcc; then
3108     check_cflags -fno-tree-vectorize
3109     check_cflags -Werror=implicit-function-declaration
3110     check_cflags -Werror=missing-prototypes
3111 elif enabled llvm_gcc; then
3112     check_cflags -mllvm -stack-alignment=16
3113 elif enabled clang; then
3114     check_cflags -mllvm -stack-alignment=16
3115     check_cflags -Qunused-arguments
3116 elif enabled armcc; then
3117     # 2523: use of inline assembler is deprecated
3118     add_cflags -W${armcc_opt},--diag_suppress=2523
3119     add_cflags -W${armcc_opt},--diag_suppress=1207
3120     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3121     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3122     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3123     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3124 elif enabled tms470; then
3125     add_cflags -pds=824 -pds=837
3126 elif enabled pathscale; then
3127     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3128 fi
3129
3130 enabled_any $THREADS_LIST      && enable threads
3131
3132 check_deps $CONFIG_LIST       \
3133            $CONFIG_EXTRA      \
3134            $HAVE_LIST         \
3135            $DECODER_LIST      \
3136            $ENCODER_LIST      \
3137            $HWACCEL_LIST      \
3138            $PARSER_LIST       \
3139            $BSF_LIST          \
3140            $DEMUXER_LIST      \
3141            $MUXER_LIST        \
3142            $FILTER_LIST       \
3143            $INDEV_LIST        \
3144            $OUTDEV_LIST       \
3145            $PROTOCOL_LIST     \
3146            $ACODEC_TESTS      \
3147            $VCODEC_TESTS      \
3148            $LAVF_TESTS        \
3149            $LAVFI_TESTS       \
3150            $SEEK_TESTS        \
3151
3152 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3153
3154 if test $target_os == "haiku"; then
3155     disable memalign
3156     disable posix_memalign
3157 fi
3158
3159 ! enabled_any memalign posix_memalign malloc_aligned &&
3160     enabled_any $need_memalign && enable memalign_hack
3161
3162 echo "install prefix            $prefix"
3163 echo "source path               $source_path"
3164 echo "C compiler                $cc"
3165 echo "ARCH                      $arch ($cpu)"
3166 if test "$build_suffix" != ""; then
3167     echo "build suffix              $build_suffix"
3168 fi
3169 if test "$extra_version" != ""; then
3170     echo "version string suffix     $extra_version"
3171 fi
3172 echo "big-endian                ${bigendian-no}"
3173 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3174 if enabled x86; then
3175     echo "${yasmexe}                      ${yasm-no}"
3176     echo "MMX enabled               ${mmx-no}"
3177     echo "MMX2 enabled              ${mmx2-no}"
3178     echo "3DNow! enabled            ${amd3dnow-no}"
3179     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3180     echo "SSE enabled               ${sse-no}"
3181     echo "SSSE3 enabled             ${ssse3-no}"
3182     echo "AVX enabled               ${avx-no}"
3183     echo "CMOV enabled              ${cmov-no}"
3184     echo "CMOV is fast              ${fast_cmov-no}"
3185     echo "EBX available             ${ebx_available-no}"
3186     echo "EBP available             ${ebp_available-no}"
3187     echo "10 operands supported     ${ten_operands-no}"
3188 fi
3189 if enabled arm; then
3190     echo "ARMv5TE enabled           ${armv5te-no}"
3191     echo "ARMv6 enabled             ${armv6-no}"
3192     echo "ARMv6T2 enabled           ${armv6t2-no}"
3193     echo "ARM VFP enabled           ${armvfp-no}"
3194     echo "IWMMXT enabled            ${iwmmxt-no}"
3195     echo "NEON enabled              ${neon-no}"
3196 fi
3197 if enabled mips; then
3198     echo "MMI enabled               ${mmi-no}"
3199 fi
3200 if enabled ppc; then
3201     echo "AltiVec enabled           ${altivec-no}"
3202     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3203     echo "dcbzl available           ${dcbzl-no}"
3204 fi
3205 if enabled sparc; then
3206     echo "VIS enabled               ${vis-no}"
3207 fi
3208 echo "debug symbols             ${debug-no}"
3209 echo "strip symbols             ${stripping-no}"
3210 echo "optimize for size         ${small-no}"
3211 echo "optimizations             ${optimizations-no}"
3212 echo "static                    ${static-no}"
3213 echo "shared                    ${shared-no}"
3214 echo "postprocessing support    ${postproc-no}"
3215 echo "new filter support        ${avfilter-no}"
3216 echo "network support           ${network-no}"
3217 echo "threading support         ${thread_type-no}"
3218 echo "SDL support               ${sdl-no}"
3219 echo "Sun medialib support      ${mlib-no}"
3220 echo "AVISynth enabled          ${avisynth-no}"
3221 echo "libcelt enabled           ${libcelt-no}"
3222 echo "frei0r enabled            ${frei0r-no}"
3223 echo "libdc1394 support         ${libdc1394-no}"
3224 echo "libdirac enabled          ${libdirac-no}"
3225 echo "libfaac enabled           ${libfaac-no}"
3226 echo "libgsm enabled            ${libgsm-no}"
3227 echo "libmp3lame enabled        ${libmp3lame-no}"
3228 echo "libnut enabled            ${libnut-no}"
3229 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3230 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3231 echo "libopencv support         ${libopencv-no}"
3232 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3233 echo "librtmp enabled           ${librtmp-no}"
3234 echo "libschroedinger enabled   ${libschroedinger-no}"
3235 echo "libspeex enabled          ${libspeex-no}"
3236 echo "libtheora enabled         ${libtheora-no}"
3237 echo "libva enabled             ${vaapi-no}"
3238 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3239 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3240 echo "libvorbis enabled         ${libvorbis-no}"
3241 echo "libvpx enabled            ${libvpx-no}"
3242 echo "libx264 enabled           ${libx264-no}"
3243 echo "libxavs enabled           ${libxavs-no}"
3244 echo "libxvid enabled           ${libxvid-no}"
3245 echo "zlib enabled              ${zlib-no}"
3246 echo "bzlib enabled             ${bzlib-no}"
3247 echo
3248
3249 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3250     echo "Enabled ${type}s:"
3251     eval list=\$$(toupper $type)_LIST
3252     print_enabled '_*' $list | sort | pr -r -3 -t
3253     echo
3254 done
3255
3256 license="LGPL version 2.1 or later"
3257 if enabled nonfree; then
3258     license="nonfree and unredistributable"
3259 elif enabled gplv3; then
3260     license="GPL version 3 or later"
3261 elif enabled lgplv3; then
3262     license="LGPL version 3 or later"
3263 elif enabled gpl; then
3264     license="GPL version 2 or later"
3265 fi
3266
3267 echo "License: $license"
3268
3269 echo "Creating config.mak and config.h..."
3270
3271 # build tree in object directory if source path is different from current one
3272 if enabled source_path_used; then
3273     DIRS="
3274         doc
3275         libavcodec
3276         libavcodec/$arch
3277         libavcodec/mlib
3278         libavdevice
3279         libavfilter
3280         libavfilter/$arch
3281         libavfilter/libmpcodecs
3282         libavfilter/libmpcodecs/libvo
3283         libavformat
3284         libavutil
3285         libavutil/$arch
3286         libpostproc
3287         libswscale
3288         libswscale/$arch
3289         libswscale/mlib
3290         tests
3291         tools
3292     "
3293     FILES="
3294         Makefile
3295         common.mak
3296         subdir.mak
3297         doc/texi2pod.pl
3298         libavcodec/Makefile
3299         libavcodec/${arch}/Makefile
3300         libavdevice/Makefile
3301         libavfilter/Makefile
3302         libavfilter/${arch}/Makefile
3303         libavformat/Makefile
3304         libavutil/Makefile
3305         libpostproc/Makefile
3306         libswscale/Makefile
3307     "
3308     map 'mkdir -p $v' $DIRS;
3309     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3310 fi
3311
3312 enabled stripping || strip="echo skipping strip"
3313
3314 config_files="$TMPH config.mak"
3315
3316 cat > config.mak <<EOF
3317 # Automatically generated by configure - do not modify!
3318 ifndef FFMPEG_CONFIG_MAK
3319 FFMPEG_CONFIG_MAK=1
3320 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3321 prefix=$prefix
3322 LIBDIR=\$(DESTDIR)$libdir
3323 SHLIBDIR=\$(DESTDIR)$shlibdir
3324 INCDIR=\$(DESTDIR)$incdir
3325 BINDIR=\$(DESTDIR)$bindir
3326 DATADIR=\$(DESTDIR)$datadir
3327 MANDIR=\$(DESTDIR)$mandir
3328 SRC_PATH="$source_path"
3329 SRC_PATH_BARE=$source_path
3330 CC_IDENT=$cc_ident
3331 ARCH=$arch
3332 CC=$cc
3333 AS=$as
3334 LD=$ld
3335 DEPCC=$dep_cc
3336 YASM=$yasmexe
3337 YASMDEP=$yasmexe
3338 AR=$ar
3339 RANLIB=$ranlib
3340 CP=cp -p
3341 LN_S=$ln_s
3342 STRIP=$strip
3343 CPPFLAGS=$CPPFLAGS
3344 CFLAGS=$CFLAGS
3345 ASFLAGS=$ASFLAGS
3346 CC_O=$CC_O
3347 LDFLAGS=$LDFLAGS
3348 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3349 SHFLAGS=$SHFLAGS
3350 YASMFLAGS=$YASMFLAGS
3351 BUILDSUF=$build_suffix
3352 FULLNAME=$FULLNAME
3353 LIBPREF=$LIBPREF
3354 LIBSUF=$LIBSUF
3355 LIBNAME=$LIBNAME
3356 SLIBPREF=$SLIBPREF
3357 SLIBSUF=$SLIBSUF
3358 EXESUF=$EXESUF
3359 EXTRA_VERSION=$extra_version
3360 DEPFLAGS=$DEPFLAGS
3361 CCDEP=$CCDEP
3362 ASDEP=$ASDEP
3363 CC_DEPFLAGS=$CC_DEPFLAGS
3364 AS_DEPFLAGS=$AS_DEPFLAGS
3365 HOSTCC=$host_cc
3366 HOSTCFLAGS=$host_cflags
3367 HOSTEXESUF=$HOSTEXESUF
3368 HOSTLDFLAGS=$host_ldflags
3369 HOSTLIBS=$host_libs
3370 TARGET_EXEC=$target_exec
3371 TARGET_PATH=$target_path
3372 SDL_LIBS=$sdl_libs
3373 SDL_CFLAGS=$sdl_cflags
3374 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3375 EXTRALIBS=$extralibs
3376 INSTALL=$install
3377 LIBTARGET=${LIBTARGET}
3378 SLIBNAME=${SLIBNAME}
3379 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3380 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3381 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3382 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3383 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3384 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3385 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3386 EOF
3387
3388 get_version(){
3389     name=$1
3390     file=$source_path/$2
3391     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3392     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3393     lcname=$(tolower $name)
3394     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3395     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3396 }
3397
3398 get_version LIBSWSCALE  libswscale/swscale.h
3399 get_version LIBPOSTPROC libpostproc/postprocess.h
3400 get_version LIBAVCODEC  libavcodec/version.h
3401 get_version LIBAVDEVICE libavdevice/avdevice.h
3402 get_version LIBAVFORMAT libavformat/version.h
3403 get_version LIBAVUTIL   libavutil/avutil.h
3404 get_version LIBAVFILTER libavfilter/avfilter.h
3405
3406 cat > $TMPH <<EOF
3407 /* Automatically generated by configure - do not modify! */
3408 #ifndef FFMPEG_CONFIG_H
3409 #define FFMPEG_CONFIG_H
3410 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3411 #define FFMPEG_LICENSE "$(c_escape $license)"
3412 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3413 #define CC_TYPE "$cc_type"
3414 #define CC_VERSION $cc_version
3415 #define restrict $_restrict
3416 #define EXTERN_PREFIX "${extern_prefix}"
3417 #define EXTERN_ASM ${extern_prefix}
3418 #define SLIBSUF "$SLIBSUF"
3419 EOF
3420
3421 test -n "$malloc_prefix" &&
3422     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3423
3424 if enabled small || disabled optimizations; then
3425     echo "#undef  av_always_inline"  >> $TMPH
3426     if enabled small; then
3427         echo "#define av_always_inline inline"  >> $TMPH
3428     else
3429         echo "#define av_always_inline av_unused"  >> $TMPH
3430     fi
3431 fi
3432
3433 if enabled yasm; then
3434     append config_files $TMPASM
3435     printf '' >$TMPASM
3436 fi
3437
3438 print_config ARCH_   "$config_files" $ARCH_LIST
3439 print_config HAVE_   "$config_files" $HAVE_LIST
3440 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3441                                      $CONFIG_EXTRA      \
3442                                      $DECODER_LIST      \
3443                                      $ENCODER_LIST      \
3444                                      $HWACCEL_LIST      \
3445                                      $PARSER_LIST       \
3446                                      $BSF_LIST          \
3447                                      $DEMUXER_LIST      \
3448                                      $MUXER_LIST        \
3449                                      $FILTER_LIST       \
3450                                      $PROTOCOL_LIST     \
3451                                      $INDEV_LIST        \
3452                                      $OUTDEV_LIST       \
3453
3454 cat >>config.mak <<EOF
3455 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3456 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3457 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3458 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3459 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3460 EOF
3461
3462 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3463 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3464
3465 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3466 cp_if_changed $TMPH config.h
3467 touch .config
3468
3469 enabled yasm && cp_if_changed $TMPASM config.asm
3470
3471 cat > $TMPH <<EOF
3472 /* Generated by ffconf */
3473 #ifndef AVUTIL_AVCONFIG_H
3474 #define AVUTIL_AVCONFIG_H
3475 EOF
3476
3477 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3478
3479 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3480
3481 cp_if_changed $TMPH libavutil/avconfig.h
3482
3483 test -n "$WARNINGS" && printf "\n$WARNINGS"
3484
3485 # build pkg-config files
3486
3487 pkgconfig_generate(){
3488 name=$1
3489 shortname=${name#lib}${build_suffix}
3490 comment=$2
3491 version=$3
3492 libs=$4
3493 requires=$5
3494 enabled ${name#lib} || return 0
3495 cat <<EOF > $name/$name.pc
3496 prefix=$prefix
3497 exec_prefix=\${prefix}
3498 libdir=$libdir
3499 includedir=$incdir
3500
3501 Name: $name
3502 Description: $comment
3503 Version: $version
3504 Requires: $(enabled shared || echo $requires)
3505 Requires.private: $(enabled shared && echo $requires)
3506 Conflicts:
3507 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3508 Libs.private: $(enabled shared && echo $libs)
3509 Cflags: -I\${includedir}
3510 EOF
3511 cat <<EOF > $name/$name-uninstalled.pc
3512 prefix=
3513 exec_prefix=
3514 libdir=\${pcfiledir}
3515 includedir=${source_path}
3516
3517 Name: $name
3518 Description: $comment
3519 Version: $version
3520 Requires: $requires
3521 Conflicts:
3522 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3523 Cflags: -I\${includedir}
3524 EOF
3525 }
3526
3527 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3528 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3529 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3530 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3531 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3532 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3533 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"