Merge remote-tracking branch 'newdev/master'
[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   --enable-postproc        enable GPLed postprocessing support [no]
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   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
98   --enable-gray            enable full grayscale support (slower color)
99   --disable-swscale-alpha  disable alpha channel support in swscale
100   --disable-fastdiv        disable table-based division
101   --enable-small           optimize for size instead of speed
102   --disable-aandct         disable AAN DCT code
103   --disable-dct            disable DCT code
104   --disable-fft            disable FFT code
105   --disable-golomb         disable Golomb code
106   --disable-huffman        disable Huffman code
107   --disable-lpc            disable LPC code
108   --disable-mdct           disable MDCT code
109   --disable-rdft           disable RDFT code
110   --disable-vaapi          disable VAAPI code
111   --disable-vdpau          disable VDPAU code
112   --disable-dxva2          disable DXVA2 code
113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
116   --disable-everything     disable all components listed below
117   --disable-encoder=NAME   disable encoder NAME
118   --enable-encoder=NAME    enable encoder NAME
119   --disable-encoders       disable all encoders
120   --disable-decoder=NAME   disable decoder NAME
121   --enable-decoder=NAME    enable decoder NAME
122   --disable-decoders       disable all decoders
123   --disable-hwaccel=NAME   disable hwaccel NAME
124   --enable-hwaccel=NAME    enable hwaccel NAME
125   --disable-hwaccels       disable all hwaccels
126   --disable-muxer=NAME     disable muxer NAME
127   --enable-muxer=NAME      enable muxer NAME
128   --disable-muxers         disable all muxers
129   --disable-demuxer=NAME   disable demuxer NAME
130   --enable-demuxer=NAME    enable demuxer NAME
131   --disable-demuxers       disable all demuxers
132   --enable-parser=NAME     enable parser NAME
133   --disable-parser=NAME    disable parser NAME
134   --disable-parsers        disable all parsers
135   --enable-bsf=NAME        enable bitstream filter NAME
136   --disable-bsf=NAME       disable bitstream filter NAME
137   --disable-bsfs           disable all bitstream filters
138   --enable-protocol=NAME   enable protocol NAME
139   --disable-protocol=NAME  disable protocol NAME
140   --disable-protocols      disable all protocols
141   --disable-indev=NAME     disable input device NAME
142   --disable-outdev=NAME    disable output device NAME
143   --disable-indevs         disable input devices
144   --disable-outdevs        disable output devices
145   --disable-devices        disable all devices
146   --enable-filter=NAME     enable filter NAME
147   --disable-filter=NAME    disable filter NAME
148   --disable-filters        disable all filters
149   --list-decoders          show all available decoders
150   --list-encoders          show all available encoders
151   --list-hwaccels          show all available hardware accelerators
152   --list-muxers            show all available muxers
153   --list-demuxers          show all available demuxers
154   --list-parsers           show all available parsers
155   --list-protocols         show all available protocols
156   --list-bsfs              show all available bitstream filters
157   --list-indevs            show all available input devices
158   --list-outdevs           show all available output devices
159   --list-filters           show all available filters
160
161 External library support:
162   --enable-avisynth        enable reading of AVISynth script files [no]
163   --enable-bzlib           enable bzlib [autodetect]
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 decoding via libspeex [no]
181   --enable-libtheora       enable Theora encoding via libtheora [no]
182   --enable-libvorbis       enable Vorbis encoding via libvorbis,
183                            native implementation exists [no]
184   --enable-libvpx          enable VP8 support via libvpx [no]
185   --enable-libx264         enable H.264 encoding via x264 [no]
186   --enable-libxavs         enable AVS encoding via xavs [no]
187   --enable-libxvid         enable Xvid encoding via xvidcore,
188                            native MPEG-4/Xvid encoder exists [no]
189   --enable-mlib            enable Sun medialib [no]
190   --enable-zlib            enable zlib [autodetect]
191
192 Advanced options (experts only):
193   --source-path=PATH       path to source code [$source_path]
194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
195   --enable-cross-compile   assume a cross-compiler is used
196   --sysroot=PATH           root of cross-build tree
197   --sysinclude=PATH        location of cross-build system headers
198   --target-os=OS           compiler targets OS [$target_os]
199   --target-exec=CMD        command to run executables on target
200   --target-path=DIR        path to view of build directory on target
201   --nm=NM                  use nm tool
202   --ar=AR                  use archive tool AR [$ar_default]
203   --as=AS                  use assembler AS [$as_default]
204   --cc=CC                  use C compiler CC [$cc_default]
205   --ld=LD                  use linker LD
206   --host-cc=HOSTCC         use host C compiler HOSTCC
207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
209   --host-libs=HLIBS        use libs HLIBS when linking for host
210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
213   --extra-version=STRING   version string suffix []
214   --build-suffix=SUFFIX    library name suffix []
215   --arch=ARCH              select architecture [$arch]
216   --cpu=CPU                select the minimum required CPU (affects
217                            instruction selection, may crash on older CPUs)
218   --disable-asm            disable all assembler optimizations
219   --disable-altivec        disable AltiVec optimizations
220   --disable-amd3dnow       disable 3DNow! optimizations
221   --disable-amd3dnowext    disable 3DNow! extended optimizations
222   --disable-mmx            disable MMX optimizations
223   --disable-mmx2           disable MMX2 optimizations
224   --disable-sse            disable SSE optimizations
225   --disable-ssse3          disable SSSE3 optimizations
226   --disable-avx            disable AVX optimizations
227   --disable-armv5te        disable armv5te optimizations
228   --disable-armv6          disable armv6 optimizations
229   --disable-armv6t2        disable armv6t2 optimizations
230   --disable-armvfp         disable ARM VFP optimizations
231   --disable-iwmmxt         disable iwmmxt optimizations
232   --disable-mmi            disable MMI optimizations
233   --disable-neon           disable neon optimizations
234   --disable-vis            disable VIS optimizations
235   --disable-yasm           disable use of yasm assembler
236   --enable-pic             build position-independent code
237   --malloc-prefix=PFX      prefix malloc and related names with PFX
238   --enable-sram            allow use of on-chip SRAM
239   --disable-symver         disable symbol versioning
240
241 Developer options (useful when working on FFmpeg itself):
242   --disable-debug          disable debugging symbols
243   --enable-debug=LEVEL     set the debug level [$debuglevel]
244   --disable-optimizations  disable compiler optimizations
245   --enable-extra-warnings  enable more compiler warnings
246   --samples=PATH           location of test samples for FATE, if not set use
247                            \$FATE_SAMPLES at make invocation time.
248
249 NOTE: Object files are built at the place where configure is launched.
250 EOF
251   exit 0
252 }
253
254 quotes='""'
255
256 log(){
257     echo "$@" >> $logfile
258 }
259
260 log_file(){
261     log BEGIN $1
262     pr -n -t $1 >> $logfile
263     log END $1
264 }
265
266 echolog(){
267     log "$@"
268     echo "$@"
269 }
270
271 warn(){
272     log "WARNING: $*"
273     WARNINGS="${WARNINGS}WARNING: $*\n"
274 }
275
276 die(){
277     echolog "$@"
278     cat <<EOF
279
280 If you think configure made a mistake, make sure you are using the latest
281 version from Git.  If the latest version fails, report the problem to the
282 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
283 EOF
284     if disabled logging; then
285         cat <<EOF
286 Rerun configure with logging enabled (do not use --disable-logging), and
287 include the log this produces with your report.
288 EOF
289     else
290 cat <<EOF
291 Include the log file "$logfile" produced by configure as this will help
292 solving the problem.
293 EOF
294     fi
295     exit 1
296 }
297
298 # Avoid locale weirdness, besides we really just want to translate ASCII.
299 toupper(){
300     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
301 }
302
303 tolower(){
304     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
305 }
306
307 c_escape(){
308     echo "$*" | sed 's/["\\]/\\\0/g'
309 }
310
311 sh_quote(){
312     v=$(echo "$1" | sed "s/'/'\\\\''/g")
313     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
314     echo "$v"
315 }
316
317 cleanws(){
318     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
319 }
320
321 filter(){
322     pat=$1
323     shift
324     for v; do
325         eval "case $v in $pat) echo $v ;; esac"
326     done
327 }
328
329 filter_out(){
330     pat=$1
331     shift
332     for v; do
333         eval "case $v in $pat) ;; *) echo $v ;; esac"
334     done
335 }
336
337 map(){
338     m=$1
339     shift
340     for v; do eval $m; done
341 }
342
343 set_all(){
344     value=$1
345     shift
346     for var in $*; do
347         eval $var=$value
348     done
349 }
350
351 set_weak(){
352     value=$1
353     shift
354     for var; do
355         eval : \${$var:=$value}
356     done
357 }
358
359 set_safe(){
360     var=$1
361     shift
362     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
363 }
364
365 get_safe(){
366     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
367 }
368
369 pushvar(){
370     for var in $*; do
371         eval level=\${${var}_level:=0}
372         eval ${var}_${level}="\$$var"
373         eval ${var}_level=$(($level+1))
374     done
375 }
376
377 popvar(){
378     for var in $*; do
379         eval level=\${${var}_level:-0}
380         test $level = 0 && continue
381         eval level=$(($level-1))
382         eval $var="\${${var}_${level}}"
383         eval ${var}_level=$level
384         eval unset ${var}_${level}
385     done
386 }
387
388 enable(){
389     set_all yes $*
390 }
391
392 disable(){
393     set_all no $*
394 }
395
396 enable_weak(){
397     set_weak yes $*
398 }
399
400 disable_weak(){
401     set_weak no $*
402 }
403
404 enable_safe(){
405     for var; do
406         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
407     done
408 }
409
410 disable_safe(){
411     for var; do
412         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
413     done
414 }
415
416 do_enable_deep(){
417     for var; do
418         enabled $var && continue
419         eval sel="\$${var}_select"
420         eval sgs="\$${var}_suggest"
421         pushvar var sgs
422         enable_deep $sel
423         popvar sgs
424         enable_deep_weak $sgs
425         popvar var
426     done
427 }
428
429 enable_deep(){
430     do_enable_deep $*
431     enable $*
432 }
433
434 enable_deep_weak(){
435     do_enable_deep $*
436     enable_weak $*
437 }
438
439 enabled(){
440     test "${1#!}" = "$1" && op== || op=!=
441     eval test "x\$${1#!}" $op "xyes"
442 }
443
444 disabled(){
445     test "${1#!}" = "$1" && op== || op=!=
446     eval test "x\$${1#!}" $op "xno"
447 }
448
449 enabled_all(){
450     for opt; do
451         enabled $opt || return 1
452     done
453 }
454
455 disabled_all(){
456     for opt; do
457         disabled $opt || return 1
458     done
459 }
460
461 enabled_any(){
462     for opt; do
463         enabled $opt && return 0
464     done
465 }
466
467 disabled_any(){
468     for opt; do
469         disabled $opt && return 0
470     done
471     return 1
472 }
473
474 set_default(){
475     for opt; do
476         eval : \${$opt:=\$${opt}_default}
477     done
478 }
479
480 is_in(){
481     value=$1
482     shift
483     for var in $*; do
484         [ $var = $value ] && return 0
485     done
486     return 1
487 }
488
489 check_deps(){
490     for cfg; do
491         cfg="${cfg#!}"
492         enabled ${cfg}_checking && die "Circular dependency for $cfg."
493         disabled ${cfg}_checking && continue
494         enable ${cfg}_checking
495
496         eval dep_all="\$${cfg}_deps"
497         eval dep_any="\$${cfg}_deps_any"
498         eval dep_sel="\$${cfg}_select"
499         eval dep_sgs="\$${cfg}_suggest"
500         eval dep_ifa="\$${cfg}_if"
501         eval dep_ifn="\$${cfg}_if_any"
502
503         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
504         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
505         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
506
507         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
508         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
509         enabled_all  $dep_all || disable $cfg
510         enabled_any  $dep_any || disable $cfg
511         disabled_any $dep_sel && disable $cfg
512
513         if enabled $cfg; then
514             eval dep_extralibs="\$${cfg}_extralibs"
515             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
516             enable_deep $dep_sel
517             enable_deep_weak $dep_sgs
518         fi
519
520         disable ${cfg}_checking
521     done
522 }
523
524 print_config_h(){
525     enabled $1 && v=1 || v=0
526     echo "#define $2 $v"
527 }
528
529 print_config_mak(){
530     enabled $1 && v= || v=!
531     echo "$v$2=yes"
532 }
533
534 print_config_asm(){
535     enabled $1 && echo "%define $2"
536 }
537
538 print_config(){
539     pfx=$1
540     files=$2
541     shift 2
542     for cfg; do
543         ucname="$(toupper $cfg)"
544         for f in $files; do
545             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
546         done
547     done
548 }
549
550 print_enabled(){
551     test "$1" = -n && end=" " && shift || end="\n"
552     suf=$1
553     shift
554     for v; do
555         enabled $v && printf "%s$end" ${v%$suf};
556     done
557 }
558
559 append(){
560     var=$1
561     shift
562     eval "$var=\"\$$var $*\""
563 }
564
565 prepend(){
566     var=$1
567     shift
568     eval "$var=\"$* \$$var\""
569 }
570
571 add_cppflags(){
572     append CPPFLAGS $($filter_cppflags "$@")
573 }
574
575 add_cflags(){
576     append CFLAGS $($filter_cflags "$@")
577 }
578
579 add_asflags(){
580     append ASFLAGS $($filter_asflags "$@")
581 }
582
583 add_ldflags(){
584     append LDFLAGS "$@"
585 }
586
587 add_extralibs(){
588     prepend extralibs "$@"
589 }
590
591 check_cmd(){
592     log "$@"
593     "$@" >> $logfile 2>&1
594 }
595
596 check_cc(){
597     log check_cc "$@"
598     cat > $TMPC
599     log_file $TMPC
600     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
601 }
602
603 check_cpp(){
604     log check_cpp "$@"
605     cat > $TMPC
606     log_file $TMPC
607     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
608 }
609
610 check_as(){
611     log check_as "$@"
612     cat > $TMPC
613     log_file $TMPC
614     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
615 }
616
617 check_asm(){
618     log check_asm "$@"
619     name="$1"
620     code="$2"
621     shift 2
622     disable $name
623     check_as "$@" <<EOF && enable $name
624 void foo(void){ __asm__ volatile($code); }
625 EOF
626 }
627
628 check_yasm(){
629     log check_yasm "$@"
630     echo "$1" > $TMPS
631     log_file $TMPS
632     shift 1
633     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
634 }
635
636 check_ld(){
637     log check_ld "$@"
638     flags=''
639     libs=''
640     for f; do
641         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
642     done
643     check_cc $($filter_cflags $flags) || return
644     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
645 }
646
647 check_cppflags(){
648     log check_cppflags "$@"
649     set -- $($filter_cppflags "$@")
650     check_cc "$@" <<EOF && append CPPFLAGS "$@"
651 int x;
652 EOF
653 }
654
655 check_cflags(){
656     log check_cflags "$@"
657     set -- $($filter_cflags "$@")
658     check_cc "$@" <<EOF && append CFLAGS "$@"
659 int x;
660 EOF
661 }
662
663 test_ldflags(){
664     log test_ldflags "$@"
665     check_ld "$@" <<EOF
666 int main(void){ return 0; }
667 EOF
668 }
669
670 check_ldflags(){
671     log check_ldflags "$@"
672     test_ldflags "$@" && add_ldflags "$@"
673 }
674
675 check_header(){
676     log check_header "$@"
677     header=$1
678     shift
679     disable_safe $header
680     check_cpp "$@" <<EOF && enable_safe $header
681 #include <$header>
682 int x;
683 EOF
684 }
685
686 check_func(){
687     log check_func "$@"
688     func=$1
689     shift
690     disable $func
691     check_ld "$@" <<EOF && enable $func
692 extern int $func();
693 int main(void){ $func(); }
694 EOF
695 }
696
697 check_mathfunc(){
698     log check_mathfunc "$@"
699     func=$1
700     shift
701     disable $func
702     check_ld "$@" <<EOF && enable $func
703 #include <math.h>
704 float foo(float f) { return $func(f); }
705 int main(void){ return 0; }
706 EOF
707 }
708
709 check_func_headers(){
710     log check_func_headers "$@"
711     headers=$1
712     funcs=$2
713     shift 2
714     {
715         for hdr in $headers; do
716             echo "#include <$hdr>"
717         done
718         for func in $funcs; do
719             echo "long check_$func(void) { return (long) $func; }"
720         done
721         echo "int main(void) { return 0; }"
722     } | check_ld "$@" && enable $funcs && enable_safe $headers
723 }
724
725 check_cpp_condition(){
726     log check_cpp_condition "$@"
727     header=$1
728     condition=$2
729     shift 2
730     check_cpp $($filter_cppflags "$@") <<EOF
731 #include <$header>
732 #if !($condition)
733 #error "unsatisfied condition: $condition"
734 #endif
735 EOF
736 }
737
738 check_lib(){
739     log check_lib "$@"
740     header="$1"
741     func="$2"
742     shift 2
743     check_header $header && check_func $func "$@" && add_extralibs "$@"
744 }
745
746 check_lib2(){
747     log check_lib2 "$@"
748     headers="$1"
749     funcs="$2"
750     shift 2
751     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
752 }
753
754 check_pkg_config(){
755     log check_pkg_config "$@"
756     pkg="$1"
757     headers="$2"
758     funcs="$3"
759     shift 3
760     $pkg_config --exists $pkg || return
761     pkg_cflags=$($pkg_config --cflags $pkg)
762     pkg_libs=$($pkg_config --libs $pkg)
763     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
764         set_safe ${pkg}_cflags $pkg_cflags   &&
765         set_safe ${pkg}_libs   $pkg_libs
766 }
767
768 check_exec(){
769     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
770 }
771
772 check_exec_crash(){
773     code=$(cat)
774
775     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
776     # are safe but may not be available everywhere.  Thus we use
777     # raise(SIGTERM) instead.  The check is run in a subshell so we
778     # can redirect the "Terminated" message from the shell.  SIGBUS
779     # is not defined by standard C so it is used conditionally.
780
781     (check_exec "$@") >> $logfile 2>&1 <<EOF
782 #include <signal.h>
783 static void sighandler(int sig){
784     raise(SIGTERM);
785 }
786 int main(void){
787     signal(SIGILL, sighandler);
788     signal(SIGFPE, sighandler);
789     signal(SIGSEGV, sighandler);
790 #ifdef SIGBUS
791     signal(SIGBUS, sighandler);
792 #endif
793     { $code }
794 }
795 EOF
796 }
797
798 check_type(){
799     log check_type "$@"
800     headers=$1
801     type=$2
802     shift 2
803     disable_safe "$type"
804     incs=""
805     for hdr in $headers; do
806         incs="$incs
807 #include <$hdr>"
808     done
809     check_cc "$@" <<EOF && enable_safe "$type"
810 $incs
811 $type v;
812 EOF
813 }
814
815 check_struct(){
816     log check_type "$@"
817     headers=$1
818     struct=$2
819     member=$3
820     shift 3
821     disable_safe "${struct}_${member}"
822     incs=""
823     for hdr in $headers; do
824         incs="$incs
825 #include <$hdr>"
826     done
827     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
828 $incs
829 const void *p = &(($struct *)0)->$member;
830 EOF
831 }
832
833 require(){
834     name="$1"
835     header="$2"
836     func="$3"
837     shift 3
838     check_lib $header $func "$@" || die "ERROR: $name not found"
839 }
840
841 require2(){
842     name="$1"
843     headers="$2"
844     func="$3"
845     shift 3
846     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
847 }
848
849 require_pkg_config(){
850     pkg="$1"
851     check_pkg_config "$@" || die "ERROR: $pkg not found"
852     add_cflags    $(get_safe ${pkg}_cflags)
853     add_extralibs $(get_safe ${pkg}_libs)
854 }
855
856 check_host_cc(){
857     log check_host_cc "$@"
858     cat > $TMPC
859     log_file $TMPC
860     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
861 }
862
863 check_host_cflags(){
864     log check_host_cflags "$@"
865     check_host_cc "$@" <<EOF && append host_cflags "$@"
866 int x;
867 EOF
868 }
869
870 apply(){
871     file=$1
872     shift
873     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
874 }
875
876 cp_if_changed(){
877     cmp -s "$1" "$2" &&
878         echo "$2 is unchanged" ||
879         cp -f "$1" "$2"
880 }
881
882 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
883 # system-dependent things.
884
885 COMPONENT_LIST="
886     bsfs
887     decoders
888     demuxers
889     encoders
890     filters
891     hwaccels
892     indevs
893     muxers
894     outdevs
895     parsers
896     protocols
897 "
898
899 CONFIG_LIST="
900     $COMPONENT_LIST
901     aandct
902     ac3dsp
903     avcodec
904     avdevice
905     avfilter
906     avformat
907     avisynth
908     bzlib
909     crystalhd
910     dct
911     doc
912     dwt
913     dxva2
914     fastdiv
915     ffmpeg
916     ffplay
917     ffprobe
918     ffserver
919     fft
920     frei0r
921     golomb
922     gpl
923     gray
924     h264dsp
925     h264pred
926     hardcoded_tables
927     huffman
928     libdc1394
929     libdirac
930     libfaac
931     libfreetype
932     libgsm
933     libmp3lame
934     libnut
935     libopencore_amrnb
936     libopencore_amrwb
937     libopencv
938     libopenjpeg
939     librtmp
940     libschroedinger
941     libspeex
942     libtheora
943     libvorbis
944     libvpx
945     libx264
946     libxavs
947     libxvid
948     lpc
949     lsp
950     mdct
951     memalign_hack
952     mlib
953     mpegaudio_hp
954     network
955     nonfree
956     pic
957     postproc
958     rdft
959     rtpdec
960     runtime_cpudetect
961     shared
962     sinewin
963     small
964     sram
965     static
966     swscale
967     swscale_alpha
968     vaapi
969     vdpau
970     version3
971     x11grab
972     zlib
973 "
974
975 THREADS_LIST='
976     pthreads
977     w32threads
978 '
979
980 ARCH_LIST='
981     alpha
982     arm
983     avr32
984     avr32_ap
985     avr32_uc
986     bfin
987     ia64
988     m68k
989     mips
990     mips64
991     parisc
992     ppc
993     ppc64
994     s390
995     sh4
996     sparc
997     sparc64
998     tomi
999     x86
1000     x86_32
1001     x86_64
1002 '
1003
1004 ARCH_EXT_LIST='
1005     altivec
1006     amd3dnow
1007     amd3dnowext
1008     armv5te
1009     armv6
1010     armv6t2
1011     armvfp
1012     avx
1013     iwmmxt
1014     mmi
1015     mmx
1016     mmx2
1017     neon
1018     ppc4xx
1019     sse
1020     ssse3
1021     vis
1022 '
1023
1024 HAVE_LIST_PUB='
1025     bigendian
1026     fast_unaligned
1027 '
1028
1029 HAVE_LIST="
1030     $ARCH_EXT_LIST
1031     $HAVE_LIST_PUB
1032     $THREADS_LIST
1033     aligned_stack
1034     alsa_asoundlib_h
1035     altivec_h
1036     arpa_inet_h
1037     attribute_may_alias
1038     attribute_packed
1039     bswap
1040     closesocket
1041     cmov
1042     dcbzl
1043     dev_bktr_ioctl_bt848_h
1044     dev_bktr_ioctl_meteor_h
1045     dev_ic_bt8xx_h
1046     dev_video_meteor_ioctl_meteor_h
1047     dev_video_bktr_ioctl_bt848_h
1048     dlfcn_h
1049     dlopen
1050     dos_paths
1051     ebp_available
1052     ebx_available
1053     exp2
1054     exp2f
1055     fast_64bit
1056     fast_clz
1057     fast_cmov
1058     fcntl
1059     fork
1060     getaddrinfo
1061     gethrtime
1062     GetProcessMemoryInfo
1063     GetProcessTimes
1064     getrusage
1065     gnu_as
1066     struct_rusage_ru_maxrss
1067     ibm_asm
1068     inet_aton
1069     inline_asm
1070     isatty
1071     kbhit
1072     ldbrx
1073     libdc1394_1
1074     libdc1394_2
1075     llrint
1076     llrintf
1077     local_aligned_16
1078     local_aligned_8
1079     localtime_r
1080     log2
1081     log2f
1082     loongson
1083     lrint
1084     lrintf
1085     lzo1x_999_compress
1086     machine_ioctl_bt848_h
1087     machine_ioctl_meteor_h
1088     malloc_h
1089     MapViewOfFile
1090     memalign
1091     mkstemp
1092     mmap
1093     pld
1094     posix_memalign
1095     round
1096     roundf
1097     sdl
1098     sdl_video_size
1099     setmode
1100     sndio_h
1101     socklen_t
1102     soundcard_h
1103     poll_h
1104     setrlimit
1105     strerror_r
1106     strtok_r
1107     struct_addrinfo
1108     struct_ipv6_mreq
1109     struct_sockaddr_in6
1110     struct_sockaddr_sa_len
1111     struct_sockaddr_storage
1112     symver
1113     symver_gnu_asm
1114     symver_asm_label
1115     sys_mman_h
1116     sys_resource_h
1117     sys_select_h
1118     sys_soundcard_h
1119     sys_videoio_h
1120     ten_operands
1121     termios_h
1122     threads
1123     truncf
1124     vfp_args
1125     VirtualAlloc
1126     winsock2_h
1127     xform_asm
1128     xmm_clobbers
1129     yasm
1130 "
1131
1132 # options emitted with CONFIG_ prefix but not available on command line
1133 CONFIG_EXTRA="
1134     avutil
1135     gplv3
1136     lgplv3
1137 "
1138
1139 CMDLINE_SELECT="
1140     $ARCH_EXT_LIST
1141     $CONFIG_LIST
1142     $THREADS_LIST
1143     asm
1144     cross_compile
1145     debug
1146     extra_warnings
1147     logging
1148     optimizations
1149     symver
1150     yasm
1151 "
1152
1153 PATHS_LIST='
1154     bindir
1155     datadir
1156     incdir
1157     libdir
1158     mandir
1159     prefix
1160     shlibdir
1161 '
1162
1163 CMDLINE_SET="
1164     $PATHS_LIST
1165     ar
1166     arch
1167     as
1168     build_suffix
1169     cc
1170     cpu
1171     cross_prefix
1172     dep_cc
1173     extra_version
1174     host_cc
1175     host_cflags
1176     host_ldflags
1177     host_libs
1178     host_os
1179     ld
1180     logfile
1181     malloc_prefix
1182     nm
1183     pkg_config
1184     samples
1185     source_path
1186     sysinclude
1187     sysroot
1188     target_exec
1189     target_os
1190     target_path
1191 "
1192
1193 CMDLINE_APPEND="
1194     extra_cflags
1195 "
1196
1197 # code dependency declarations
1198
1199 # architecture extensions
1200
1201 armv5te_deps="arm"
1202 armv6_deps="arm"
1203 armv6t2_deps="arm"
1204 armvfp_deps="arm"
1205 iwmmxt_deps="arm"
1206 neon_deps="arm"
1207
1208 mmi_deps="mips"
1209
1210 altivec_deps="ppc"
1211 ppc4xx_deps="ppc"
1212
1213 vis_deps="sparc"
1214
1215 x86_64_suggest="cmov fast_cmov"
1216 amd3dnow_deps="mmx"
1217 amd3dnowext_deps="amd3dnow"
1218 mmx_deps="x86"
1219 mmx2_deps="mmx"
1220 sse_deps="mmx"
1221 ssse3_deps="sse"
1222 avx_deps="ssse3"
1223
1224 aligned_stack_if_any="ppc x86"
1225 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1226 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1227 fast_unaligned_if_any="armv6 ppc x86"
1228
1229 need_memalign="altivec neon sse"
1230 inline_asm_deps="!tms470"
1231
1232 symver_if_any="symver_asm_label symver_gnu_asm"
1233
1234 # subsystems
1235 dct_select="rdft"
1236 mdct_select="fft"
1237 rdft_select="fft"
1238
1239 # decoders / encoders / hardware accelerators
1240 aac_decoder_select="mdct rdft sinewin"
1241 aac_encoder_select="mdct sinewin"
1242 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1243 ac3_decoder_select="mdct ac3dsp ac3_parser"
1244 ac3_encoder_select="mdct ac3dsp"
1245 ac3_fixed_encoder_select="ac3dsp"
1246 alac_encoder_select="lpc"
1247 amrnb_decoder_select="lsp"
1248 amrwb_decoder_select="lsp"
1249 atrac1_decoder_select="mdct sinewin"
1250 atrac3_decoder_select="mdct"
1251 binkaudio_dct_decoder_select="mdct rdft dct"
1252 binkaudio_rdft_decoder_select="mdct rdft"
1253 cavs_decoder_select="golomb"
1254 cook_decoder_select="mdct sinewin"
1255 cscd_decoder_suggest="zlib"
1256 dca_decoder_select="mdct"
1257 dnxhd_encoder_select="aandct"
1258 dxa_decoder_select="zlib"
1259 eac3_decoder_select="ac3_decoder"
1260 eamad_decoder_select="aandct"
1261 eatgq_decoder_select="aandct"
1262 eatqi_decoder_select="aandct"
1263 ffv1_decoder_select="golomb"
1264 flac_decoder_select="golomb"
1265 flac_encoder_select="golomb lpc"
1266 flashsv_decoder_select="zlib"
1267 flashsv_encoder_select="zlib"
1268 flv_decoder_select="h263_decoder"
1269 flv_encoder_select="h263_encoder"
1270 fraps_decoder_select="huffman"
1271 h261_encoder_select="aandct"
1272 h263_decoder_select="h263_parser"
1273 h263_encoder_select="aandct"
1274 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1275 h263i_decoder_select="h263_decoder"
1276 h263p_encoder_select="h263_encoder"
1277 h264_decoder_select="golomb h264dsp h264pred"
1278 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1279 h264_dxva2_hwaccel_deps="dxva2api_h"
1280 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1281 h264_vaapi_hwaccel_select="vaapi"
1282 h264_vdpau_decoder_select="vdpau h264_decoder"
1283 imc_decoder_select="fft mdct"
1284 jpegls_decoder_select="golomb"
1285 jpegls_encoder_select="golomb"
1286 ljpeg_encoder_select="aandct"
1287 loco_decoder_select="golomb"
1288 mjpeg_encoder_select="aandct"
1289 mlp_decoder_select="mlp_parser"
1290 mp1float_decoder_select="dct"
1291 mp2float_decoder_select="dct"
1292 mp3adufloat_decoder_select="dct"
1293 mp3float_decoder_select="dct"
1294 mp3on4float_decoder_select="dct"
1295 mpeg1video_encoder_select="aandct"
1296 mpeg2video_encoder_select="aandct"
1297 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1298 mpeg4_encoder_select="h263_encoder"
1299 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1300 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1301 mpeg2_crystalhd_decoder_select="crystalhd"
1302 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1303 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1304 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1305 mpeg4_crystalhd_decoder_select="crystalhd"
1306 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1307 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1308 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1309 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1310 msmpeg4_crystalhd_decoder_select="crystalhd"
1311 msmpeg4v1_decoder_select="h263_decoder"
1312 msmpeg4v1_encoder_select="h263_encoder"
1313 msmpeg4v2_decoder_select="h263_decoder"
1314 msmpeg4v2_encoder_select="h263_encoder"
1315 msmpeg4v3_decoder_select="h263_decoder"
1316 msmpeg4v3_encoder_select="h263_encoder"
1317 nellymoser_decoder_select="mdct sinewin"
1318 nellymoser_encoder_select="mdct sinewin"
1319 png_decoder_select="zlib"
1320 png_encoder_select="zlib"
1321 qcelp_decoder_select="lsp"
1322 qdm2_decoder_select="mdct rdft"
1323 ra_144_encoder_select="lpc"
1324 rv10_decoder_select="h263_decoder"
1325 rv10_encoder_select="h263_encoder"
1326 rv20_decoder_select="h263_decoder"
1327 rv20_encoder_select="h263_encoder"
1328 rv30_decoder_select="golomb h264pred"
1329 rv40_decoder_select="golomb h264pred"
1330 shorten_decoder_select="golomb"
1331 sipr_decoder_select="lsp"
1332 snow_decoder_select="dwt"
1333 snow_encoder_select="aandct dwt"
1334 sonic_decoder_select="golomb"
1335 sonic_encoder_select="golomb"
1336 sonic_ls_encoder_select="golomb"
1337 svq1_encoder_select="aandct"
1338 svq3_decoder_select="golomb h264dsp h264pred"
1339 svq3_decoder_suggest="zlib"
1340 theora_decoder_select="vp3_decoder"
1341 tiff_decoder_suggest="zlib"
1342 tiff_encoder_suggest="zlib"
1343 truehd_decoder_select="mlp_decoder"
1344 tscc_decoder_select="zlib"
1345 twinvq_decoder_select="mdct lsp sinewin"
1346 vc1_decoder_select="h263_decoder"
1347 vc1_crystalhd_decoder_select="crystalhd"
1348 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1349 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1350 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1351 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1352 vorbis_decoder_select="mdct"
1353 vorbis_encoder_select="mdct"
1354 vp6_decoder_select="huffman"
1355 vp6a_decoder_select="vp6_decoder"
1356 vp6f_decoder_select="vp6_decoder"
1357 vp8_decoder_select="h264pred"
1358 wmapro_decoder_select="mdct sinewin"
1359 wmav1_decoder_select="mdct sinewin"
1360 wmav1_encoder_select="mdct sinewin"
1361 wmav2_decoder_select="mdct sinewin"
1362 wmav2_encoder_select="mdct sinewin"
1363 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1364 wmv1_decoder_select="h263_decoder"
1365 wmv1_encoder_select="h263_encoder"
1366 wmv2_decoder_select="h263_decoder"
1367 wmv2_encoder_select="h263_encoder"
1368 wmv3_decoder_select="vc1_decoder"
1369 wmv3_crystalhd_decoder_select="crystalhd"
1370 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1371 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1372 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1373 zlib_decoder_select="zlib"
1374 zlib_encoder_select="zlib"
1375 zmbv_decoder_select="zlib"
1376 zmbv_encoder_select="zlib"
1377
1378 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1379 vaapi_deps="va_va_h"
1380 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1381
1382 # parsers
1383 h264_parser_select="golomb h264dsp h264pred"
1384
1385 # external libraries
1386 libdirac_decoder_deps="libdirac !libschroedinger"
1387 libdirac_encoder_deps="libdirac"
1388 libfaac_encoder_deps="libfaac"
1389 libgsm_decoder_deps="libgsm"
1390 libgsm_encoder_deps="libgsm"
1391 libgsm_ms_decoder_deps="libgsm"
1392 libgsm_ms_encoder_deps="libgsm"
1393 libmp3lame_encoder_deps="libmp3lame"
1394 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1395 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1396 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1397 libopenjpeg_decoder_deps="libopenjpeg"
1398 libschroedinger_decoder_deps="libschroedinger"
1399 libschroedinger_encoder_deps="libschroedinger"
1400 libspeex_decoder_deps="libspeex"
1401 libtheora_encoder_deps="libtheora"
1402 libvorbis_encoder_deps="libvorbis"
1403 libvpx_decoder_deps="libvpx"
1404 libvpx_encoder_deps="libvpx"
1405 libx264_encoder_deps="libx264"
1406 libxavs_encoder_deps="libxavs"
1407 libxvid_encoder_deps="libxvid"
1408
1409 # demuxers / muxers
1410 ac3_demuxer_select="ac3_parser"
1411 asf_stream_muxer_select="asf_muxer"
1412 avisynth_demuxer_deps="avisynth"
1413 dirac_demuxer_select="dirac_parser"
1414 eac3_demuxer_select="ac3_parser"
1415 flac_demuxer_select="flac_parser"
1416 ipod_muxer_select="mov_muxer"
1417 libnut_demuxer_deps="libnut"
1418 libnut_muxer_deps="libnut"
1419 matroska_audio_muxer_select="matroska_muxer"
1420 matroska_demuxer_suggest="zlib bzlib"
1421 mov_demuxer_suggest="zlib"
1422 mp3_demuxer_select="mpegaudio_parser"
1423 mp4_muxer_select="mov_muxer"
1424 mpegtsraw_demuxer_select="mpegts_demuxer"
1425 mxf_d10_muxer_select="mxf_muxer"
1426 ogg_demuxer_select="golomb"
1427 psp_muxer_select="mov_muxer"
1428 rtp_demuxer_select="sdp_demuxer"
1429 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1430 rtsp_demuxer_select="http_protocol rtpdec"
1431 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1432 sap_demuxer_select="sdp_demuxer"
1433 sap_muxer_select="rtp_muxer rtp_protocol"
1434 sdp_demuxer_select="rtpdec"
1435 spdif_muxer_select="aac_parser"
1436 tg2_muxer_select="mov_muxer"
1437 tgp_muxer_select="mov_muxer"
1438 w64_demuxer_deps="wav_demuxer"
1439
1440 # indevs / outdevs
1441 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1442 alsa_outdev_deps="alsa_asoundlib_h"
1443 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1444 dv1394_indev_deps="dv1394 dv_demuxer"
1445 fbdev_indev_deps="linux_fb_h"
1446 jack_indev_deps="jack_jack_h"
1447 libdc1394_indev_deps="libdc1394"
1448 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1449 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1450 sndio_indev_deps="sndio_h"
1451 sndio_outdev_deps="sndio_h"
1452 v4l_indev_deps="linux_videodev_h"
1453 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1454 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1455 vfwcap_indev_extralibs="-lavicap32"
1456 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1457 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1458
1459 # protocols
1460 gopher_protocol_deps="network"
1461 http_protocol_deps="network"
1462 http_protocol_select="tcp_protocol"
1463 mmsh_protocol_select="http_protocol"
1464 mmst_protocol_deps="network"
1465 rtmp_protocol_select="tcp_protocol"
1466 rtp_protocol_select="udp_protocol"
1467 tcp_protocol_deps="network"
1468 udp_protocol_deps="network"
1469
1470 # filters
1471 blackframe_filter_deps="gpl"
1472 cropdetect_filter_deps="gpl"
1473 drawtext_filter_deps="libfreetype"
1474 frei0r_filter_deps="frei0r dlopen strtok_r"
1475 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1476 hqdn3d_filter_deps="gpl"
1477 mp_filter_deps="gpl"
1478 ocv_filter_deps="libopencv"
1479 scale_filter_deps="swscale"
1480 yadif_filter_deps="gpl"
1481
1482 # libraries
1483 avdevice_deps="avcodec avformat"
1484 avformat_deps="avcodec"
1485
1486 # programs
1487 ffmpeg_deps="avcodec avformat swscale"
1488 ffmpeg_select="buffer_filter"
1489 ffplay_deps="avcodec avformat swscale sdl"
1490 ffplay_select="rdft"
1491 ffprobe_deps="avcodec avformat"
1492 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1493 ffserver_extralibs='$ldl'
1494
1495 doc_deps="texi2html"
1496
1497 # tests
1498
1499 test_deps(){
1500     suf1=$1
1501     suf2=$2
1502     shift 2
1503     for v; do
1504         dep=${v%=*}
1505         tests=${v#*=}
1506         for name in ${tests}; do
1507             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1508         done
1509     done
1510 }
1511
1512 set_ne_test_deps(){
1513     eval ${1}_be_test_deps="bigendian"
1514     eval ${1}_le_test_deps="!bigendian"
1515 }
1516
1517 test_deps _encoder _decoder                                             \
1518     adpcm_g726=g726                                                     \
1519     adpcm_ima_qt                                                        \
1520     adpcm_ima_wav                                                       \
1521     adpcm_ms                                                            \
1522     adpcm_swf                                                           \
1523     adpcm_yamaha=adpcm_yam                                              \
1524     alac                                                                \
1525     asv1                                                                \
1526     asv2                                                                \
1527     bmp                                                                 \
1528     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1529     dvvideo="dv dv50"                                                   \
1530     ffv1                                                                \
1531     flac                                                                \
1532     flashsv                                                             \
1533     flv                                                                 \
1534     gif                                                                 \
1535     h261                                                                \
1536     h263="h263 h263p"                                                   \
1537     huffyuv                                                             \
1538     jpegls                                                              \
1539     mjpeg="jpg mjpeg ljpeg"                                             \
1540     mp2                                                                 \
1541     mpeg1video="mpeg mpeg1b"                                            \
1542     mpeg2video="mpeg2 mpeg2thread"                                      \
1543     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1544     msmpeg4v3=msmpeg4                                                   \
1545     msmpeg4v2                                                           \
1546     pbm=pbmpipe                                                         \
1547     pcx                                                                 \
1548     pgm="pgm pgmpipe"                                                   \
1549     png                                                                 \
1550     ppm="ppm ppmpipe"                                                   \
1551     rawvideo="rgb yuv"                                                  \
1552     roq                                                                 \
1553     rv10                                                                \
1554     rv20                                                                \
1555     sgi                                                                 \
1556     snow="snow snowll"                                                  \
1557     svq1                                                                \
1558     targa=tga                                                           \
1559     tiff                                                                \
1560     wmav1                                                               \
1561     wmav2                                                               \
1562     wmv1                                                                \
1563     wmv2                                                                \
1564
1565 test_deps _muxer _demuxer                                               \
1566     aiff                                                                \
1567     pcm_alaw=alaw                                                       \
1568     asf                                                                 \
1569     au                                                                  \
1570     avi                                                                 \
1571     dv=dv_fmt                                                           \
1572     ffm                                                                 \
1573     flv=flv_fmt                                                         \
1574     gxf                                                                 \
1575     matroska=mkv                                                        \
1576     mmf                                                                 \
1577     mov                                                                 \
1578     pcm_mulaw=mulaw                                                     \
1579     mxf                                                                 \
1580     nut                                                                 \
1581     ogg                                                                 \
1582     rawvideo=pixfmt                                                     \
1583     rm                                                                  \
1584     swf                                                                 \
1585     mpegts=ts                                                           \
1586     voc                                                                 \
1587     wav                                                                 \
1588     yuv4mpegpipe=yuv4mpeg                                               \
1589
1590 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1591 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1592
1593 set_ne_test_deps pixdesc
1594 set_ne_test_deps pixfmts_copy
1595 set_ne_test_deps pixfmts_crop
1596 set_ne_test_deps pixfmts_hflip
1597 set_ne_test_deps pixfmts_null
1598 set_ne_test_deps pixfmts_pad
1599 set_ne_test_deps pixfmts_scale
1600 set_ne_test_deps pixfmts_vflip
1601
1602 # default parameters
1603
1604 logfile="config.log"
1605
1606 # installation paths
1607 prefix_default="/usr/local"
1608 bindir_default='${prefix}/bin'
1609 datadir_default='${prefix}/share/ffmpeg'
1610 incdir_default='${prefix}/include'
1611 libdir_default='${prefix}/lib'
1612 mandir_default='${prefix}/share/man'
1613 shlibdir_default="$libdir_default"
1614
1615 # toolchain
1616 ar_default="ar"
1617 cc_default="gcc"
1618 cc_version=\"unknown\"
1619 host_cc_default="gcc"
1620 ln_s="ln -sf"
1621 nm_default="nm"
1622 objformat="elf"
1623 pkg_config_default=pkg-config
1624 ranlib="ranlib"
1625 yasmexe="yasm"
1626 nogas=":"
1627
1628 nm_opts='-g'
1629
1630 # machine
1631 arch_default=$(uname -m)
1632 cpu="generic"
1633
1634 # OS
1635 target_os_default=$(tolower $(uname -s))
1636 host_os=$target_os_default
1637
1638 # configurable options
1639 enable avcodec
1640 enable avdevice
1641 enable avfilter
1642 enable avformat
1643 enable avutil
1644 enable asm
1645 enable debug
1646 enable doc
1647 enable fastdiv
1648 enable ffmpeg
1649 enable ffplay
1650 enable ffprobe
1651 enable ffserver
1652 enable mpegaudio_hp
1653 enable network
1654 enable optimizations
1655 enable protocols
1656 enable static
1657 enable swscale
1658 enable swscale_alpha
1659
1660 # build settings
1661 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1662 FFSERVERLDFLAGS=-Wl,-E
1663 LIBPREF="lib"
1664 LIBSUF=".a"
1665 FULLNAME='$(NAME)$(BUILDSUF)'
1666 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1667 SLIBPREF="lib"
1668 SLIBSUF=".so"
1669 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1670 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1671 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1672 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1673
1674 CC_O='-o $@'
1675
1676 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1677 host_libs='-lm'
1678
1679 target_path='$(CURDIR)'
1680
1681 # since the object filename is not given with the -MM flag, the compiler
1682 # is only able to print the basename, and we must add the path ourselves
1683 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1684 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1685
1686 # find source path
1687 source_path="$(dirname "$0")"
1688 enable source_path_used
1689 if test -f configure; then
1690     source_path="$(pwd)"
1691     disable source_path_used
1692 else
1693     source_path="$(cd "$source_path"; pwd)"
1694     echo "$source_path" | grep -q '[[:blank:]]' &&
1695         die "Out of tree builds are impossible with whitespace in source path."
1696     test -e "$source_path/config.h" &&
1697         die "Out of tree builds are impossible with config.h in source dir."
1698 fi
1699
1700 for v in "$@"; do
1701     r=${v#*=}
1702     l=${v%"$r"}
1703     r=$(sh_quote "$r")
1704     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1705 done
1706
1707 find_things(){
1708     thing=$1
1709     pattern=$2
1710     file=$source_path/$3
1711     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1712 }
1713
1714 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1715 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1716 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1717 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1718 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1719 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1720 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1721 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1722 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1723 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1724 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1725
1726 find_tests(){
1727     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1728 }
1729
1730 ACODEC_TESTS=$(find_tests acodec)
1731 VCODEC_TESTS=$(find_tests vsynth1)
1732 LAVF_TESTS=$(find_tests lavf)
1733 LAVFI_TESTS=$(find_tests lavfi)
1734 SEEK_TESTS=$(find_tests seek seek_)
1735
1736 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1737
1738 for n in $COMPONENT_LIST; do
1739     v=$(toupper ${n%s})_LIST
1740     eval enable \$$v
1741     eval ${n}_if_any="\$$v"
1742 done
1743
1744 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1745
1746 die_unknown(){
1747     echo "Unknown option \"$1\"."
1748     echo "See $0 --help for available options."
1749     exit 1
1750 }
1751
1752 show_list() {
1753     suffix=_$1
1754     shift
1755     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1756     exit 0
1757 }
1758
1759 for opt do
1760     optval="${opt#*=}"
1761     case "$opt" in
1762     --extra-ldflags=*) add_ldflags $optval
1763     ;;
1764     --extra-libs=*) add_extralibs $optval
1765     ;;
1766     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1767     ;;
1768     --enable-debug=*) debuglevel="$optval"
1769     ;;
1770     --disable-everything)
1771     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1772     ;;
1773     --enable-*=*|--disable-*=*)
1774     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1775     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1776     eval list=\$$(toupper $thing)_LIST
1777     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1778     $action $(filter "$name" $list)
1779     ;;
1780     --enable-?*|--disable-?*)
1781     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1782     if is_in $option $COMPONENT_LIST; then
1783         test $action = disable && action=unset
1784         eval $action \$$(toupper ${option%s})_LIST
1785     elif is_in $option $CMDLINE_SELECT; then
1786         $action $option
1787     else
1788         die_unknown $opt
1789     fi
1790     ;;
1791     --list-*)
1792         NAME="${opt#--list-}"
1793         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1794         NAME=${NAME%s}
1795         eval show_list $NAME \$$(toupper $NAME)_LIST
1796     ;;
1797     --help|-h) show_help
1798     ;;
1799     *)
1800     optname="${opt%%=*}"
1801     optname="${optname#--}"
1802     optname=$(echo "$optname" | sed 's/-/_/g')
1803     if is_in $optname $CMDLINE_SET; then
1804         eval $optname='$optval'
1805     elif is_in $optname $CMDLINE_APPEND; then
1806         append $optname "$optval"
1807     else
1808          die_unknown $opt
1809     fi
1810     ;;
1811     esac
1812 done
1813
1814 disabled logging && logfile=/dev/null
1815
1816 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1817 set >> $logfile
1818
1819 test -n "$cross_prefix" && enable cross_compile
1820
1821 if enabled cross_compile; then
1822     test -n "$arch" && test -n "$target_os" ||
1823         die "Must specify target arch and OS when cross-compiling"
1824 fi
1825
1826 set_default arch target_os
1827
1828 ar_default="${cross_prefix}${ar_default}"
1829 cc_default="${cross_prefix}${cc_default}"
1830 nm_default="${cross_prefix}${nm_default}"
1831 pkg_config_default="${cross_prefix}${pkg_config_default}"
1832 ranlib="${cross_prefix}${ranlib}"
1833
1834 sysinclude_default="${sysroot}/usr/include"
1835
1836 set_default cc nm pkg_config sysinclude
1837 enabled cross_compile || host_cc_default=$cc
1838 set_default host_cc
1839
1840 exesuf() {
1841     case $1 in
1842         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1843     esac
1844 }
1845
1846 EXESUF=$(exesuf $target_os)
1847 HOSTEXESUF=$(exesuf $host_os)
1848
1849 # set temporary file name
1850 : ${TMPDIR:=$TEMPDIR}
1851 : ${TMPDIR:=$TMP}
1852 : ${TMPDIR:=/tmp}
1853
1854 if ! check_cmd mktemp -u XXXXXX; then
1855     # simple replacement for missing mktemp
1856     # NOT SAFE FOR GENERAL USE
1857     mktemp(){
1858         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1859     }
1860 fi
1861
1862 tmpfile(){
1863     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1864         (set -C; exec > $tmp) 2>/dev/null ||
1865         die "Unable to create temporary file in $TMPDIR."
1866     append TMPFILES $tmp
1867     eval $1=$tmp
1868 }
1869
1870 trap 'rm -f -- $TMPFILES' EXIT
1871
1872 tmpfile TMPC  .c
1873 tmpfile TMPE  $EXESUF
1874 tmpfile TMPH  .h
1875 tmpfile TMPO  .o
1876 tmpfile TMPS  .S
1877 tmpfile TMPV  .ver
1878 tmpfile TMPSH .sh
1879 tmpfile TMPASM .asm
1880
1881 unset -f mktemp
1882
1883 chmod +x $TMPE
1884
1885 # make sure we can execute files in $TMPDIR
1886 cat > $TMPSH 2>> $logfile <<EOF
1887 #! /bin/sh
1888 EOF
1889 chmod +x $TMPSH >> $logfile 2>&1
1890 if ! $TMPSH >> $logfile 2>&1; then
1891     cat <<EOF
1892 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1893 variable to another directory and make sure that it is not mounted noexec.
1894 EOF
1895     die "Sanity test failed."
1896 fi
1897
1898 filter_cflags=echo
1899 filter_cppflags=echo
1900 filter_asflags=echo
1901
1902 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1903     cc_type=llvm_gcc
1904     cc_version=__VERSION__
1905     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1906     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1907     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1908     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1909     speed_cflags='-O3'
1910     size_cflags='-Os'
1911 elif $cc -v 2>&1 | grep -qi ^gcc; then
1912     cc_type=gcc
1913     cc_version=__VERSION__
1914     gcc_version=$($cc --version | head -n1)
1915     gcc_basever=$($cc -dumpversion)
1916     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1917     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1918     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1919     if ! $cc -dumpversion | grep -q '^2\.'; then
1920         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1921         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1922     fi
1923     speed_cflags='-O3'
1924     size_cflags='-Os'
1925 elif $cc --version 2>/dev/null | grep -q Intel; then
1926     cc_type=icc
1927     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1928     cc_ident=$($cc --version | head -n1)
1929     icc_version=$($cc -dumpversion)
1930     CC_DEPFLAGS='-MMD'
1931     AS_DEPFLAGS='-MMD'
1932     speed_cflags='-O3'
1933     size_cflags='-Os'
1934     noopt_cflags='-O1'
1935 elif $cc -v 2>&1 | grep -q xlc; then
1936     cc_type=xlc
1937     cc_version="AV_STRINGIFY(__IBMC__)"
1938     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1939     speed_cflags='-O5'
1940     size_cflags='-O5 -qcompact'
1941 elif $cc -V 2>/dev/null | grep -q Compaq; then
1942     cc_type=ccc
1943     cc_version="AV_STRINGIFY(__DECC_VER)"
1944     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1945     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1946     debuglevel=3
1947     add_ldflags -Wl,-z,now # calls to libots crash without this
1948     speed_cflags='-fast'
1949     size_cflags='-O1'
1950 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1951     test -d "$sysroot" || die "No valid sysroot specified."
1952     cc_type=armcc
1953     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1954     cc_ident=$($cc --vsn | head -n1)
1955     armcc_conf="$PWD/armcc.conf"
1956     $cc --arm_linux_configure                 \
1957         --arm_linux_config_file="$armcc_conf" \
1958         --configure_sysroot="$sysroot"        \
1959         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1960         die "Error creating armcc configuration file."
1961     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1962     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1963     as_default="${cross_prefix}gcc"
1964     CC_DEPFLAGS='-MMD'
1965     AS_DEPFLAGS='-MMD'
1966     speed_cflags='-O3'
1967     size_cflags='-Os'
1968     filter_asflags="filter_out -W${armcc_opt}*"
1969 elif $cc -version 2>/dev/null | grep -q TMS470; then
1970     cc_type=tms470
1971     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1972     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1973     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1974     CC_O='-fr=$(@D)'
1975     as_default="${cross_prefix}gcc"
1976     ld_default="${cross_prefix}gcc"
1977     TMPO=$(basename $TMPC .c).o
1978     append TMPFILES $TMPO
1979     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1980     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1981     AS_DEPFLAGS='-MMD'
1982     speed_cflags='-O3 -mf=5'
1983     size_cflags='-O3 -mf=2'
1984     filter_cflags=tms470_flags
1985     tms470_flags(){
1986         for flag; do
1987             case $flag in
1988                 -march=*|-mcpu=*)
1989                     case "${flag#*=}" in
1990                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1991                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1992                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1993                         armv6*|arm11*)          echo -mv=6   ;;
1994                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1995                                                 echo -mv=5e  ;;
1996                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1997                     esac
1998                     ;;
1999                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2000                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2001                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2002                 -msoft-float)   echo --float_support=vfplib       ;;
2003                 -O[0-3]|-mf=*)  echo $flag                        ;;
2004                 -g)             echo -g -mn                       ;;
2005                 -pds=*)         echo $flag                        ;;
2006             esac
2007         done
2008     }
2009 elif $cc -v 2>&1 | grep -q clang; then
2010     cc_type=clang
2011     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2012         cc_version=__clang_version__ || cc_version=__VERSION__
2013     cc_ident=$($cc --version | head -n1)
2014     CC_DEPFLAGS='-MMD'
2015     AS_DEPFLAGS='-MMD'
2016     speed_cflags='-O3'
2017     size_cflags='-Os'
2018 elif $cc -V 2>&1 | grep -q Sun; then
2019     cc_type=suncc
2020     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2021     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2022     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2023     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2024     speed_cflags='-O5'
2025     size_cflags='-O5 -xspace'
2026     filter_cflags=suncc_flags
2027     suncc_flags(){
2028         for flag; do
2029             case $flag in
2030                 -march=*|-mcpu=*)
2031                     case "${flag#*=}" in
2032                         native)                   echo -xtarget=native       ;;
2033                         v9|niagara)               echo -xarch=sparc          ;;
2034                         ultrasparc)               echo -xarch=sparcvis       ;;
2035                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2036                         i586|pentium)             echo -xchip=pentium        ;;
2037                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2038                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2039                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2040                         pentium4*)          echo -xtarget=pentium4           ;;
2041                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2042                         *-sse3)             echo -xarch=sse3                 ;;
2043                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2044                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2045                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2046                         k8|opteron|athlon64|athlon-fx)
2047                                                   echo -xarch=sse2a          ;;
2048                         athlon*)                  echo -xarch=pentium_proa   ;;
2049                     esac
2050                     ;;
2051                 -std=c99)             echo -xc99              ;;
2052                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2053                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2054                 -W*,*)                echo $flag              ;;
2055                 -f*-*|-W*)                                    ;;
2056                 *)                    echo $flag              ;;
2057             esac
2058         done
2059     }
2060 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2061     cc_type=pathscale
2062     cc_version=__PATHSCALE__
2063     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2064     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2065     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2066     speed_cflags='-O2'
2067     size_cflags='-Os'
2068 elif $cc -v 2>&1 | grep -q Open64; then
2069     cc_type=open64
2070     cc_version=__OPEN64__
2071     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2072     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2073     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2074     speed_cflags='-O2'
2075     size_cflags='-Os'
2076 fi
2077
2078 test -n "$cc_type" && enable $cc_type ||
2079     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2080
2081 : ${as_default:=$cc}
2082 : ${dep_cc_default:=$cc}
2083 : ${ld_default:=$cc}
2084 set_default ar as dep_cc ld
2085
2086 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2087 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2088
2089 add_cflags $extra_cflags
2090 add_asflags $extra_cflags
2091
2092 if test -n "$sysroot"; then
2093     case "$cc_type" in
2094         gcc|llvm_gcc|clang)
2095             add_cppflags --sysroot="$sysroot"
2096             add_ldflags --sysroot="$sysroot"
2097         ;;
2098         tms470)
2099             add_cppflags -I"$sysinclude"
2100             add_ldflags  --sysroot="$sysroot"
2101         ;;
2102     esac
2103 fi
2104
2105 if test "$cpu" = host; then
2106     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2107
2108     case "$cc_type" in
2109         gcc|llvm_gcc)
2110             check_native(){
2111                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2112                 sed -n "/$1=/{
2113                             s/.*$1=\\([^ ]*\\).*/\\1/
2114                             p
2115                             q
2116                         }" $TMPE
2117             }
2118             cpu=$(check_native -march || check_native -mcpu)
2119         ;;
2120     esac
2121
2122     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2123 fi
2124
2125 # Deal with common $arch aliases
2126 case "$arch" in
2127     arm*)
2128         arch="arm"
2129     ;;
2130     mips|mipsel|IP*)
2131         arch="mips"
2132     ;;
2133     mips64*)
2134         arch="mips"
2135         subarch="mips64"
2136     ;;
2137     parisc|hppa)
2138         arch="parisc"
2139     ;;
2140     parisc64|hppa64)
2141         arch="parisc"
2142         subarch="parisc64"
2143     ;;
2144     "Power Macintosh"|ppc|powerpc)
2145         arch="ppc"
2146     ;;
2147     ppc64|powerpc64)
2148         arch="ppc"
2149         subarch="ppc64"
2150     ;;
2151     s390|s390x)
2152         arch="s390"
2153     ;;
2154     sh4|sh)
2155         arch="sh4"
2156     ;;
2157     sun4u|sparc64)
2158         arch="sparc"
2159         subarch="sparc64"
2160     ;;
2161     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2162         arch="x86"
2163     ;;
2164 esac
2165
2166 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2167 enable $arch
2168
2169 # Add processor-specific flags
2170 if test "$cpu" = generic; then
2171     : do nothing
2172 elif enabled ppc; then
2173
2174     case $(tolower $cpu) in
2175         601|ppc601|powerpc601)
2176             cpuflags="-mcpu=601"
2177             disable altivec
2178         ;;
2179         603*|ppc603*|powerpc603*)
2180             cpuflags="-mcpu=603"
2181             disable altivec
2182         ;;
2183         604*|ppc604*|powerpc604*)
2184             cpuflags="-mcpu=604"
2185             disable altivec
2186         ;;
2187         g3|75*|ppc75*|powerpc75*)
2188             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2189             disable altivec
2190         ;;
2191         g4|745*|ppc745*|powerpc745*)
2192             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2193         ;;
2194         74*|ppc74*|powerpc74*)
2195             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2196         ;;
2197         g5|970|ppc970|powerpc970|power4*)
2198             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2199         ;;
2200         cell)
2201             cpuflags="-mcpu=cell"
2202             enable ldbrx
2203         ;;
2204         e500v2)
2205             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2206             disable altivec
2207         ;;
2208         e500)
2209             cpuflags="-mcpu=8540 -mhard-float"
2210             disable altivec
2211         ;;
2212     esac
2213
2214 elif enabled x86; then
2215
2216     case $cpu in
2217         i[345]86|pentium)
2218             cpuflags="-march=$cpu"
2219             disable mmx
2220         ;;
2221         # targets that do NOT support conditional mov (cmov)
2222         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2223             cpuflags="-march=$cpu"
2224             disable cmov
2225         ;;
2226         # targets that do support conditional mov (cmov)
2227         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2228             cpuflags="-march=$cpu"
2229             enable cmov
2230             enable fast_cmov
2231         ;;
2232         # targets that do support conditional mov but on which it's slow
2233         pentium4|pentium4m|prescott|nocona)
2234             cpuflags="-march=$cpu"
2235             enable cmov
2236             disable fast_cmov
2237         ;;
2238     esac
2239
2240 elif enabled sparc; then
2241
2242     case $cpu in
2243         niagara)
2244             cpuflags="-mcpu=$cpu"
2245             disable vis
2246         ;;
2247         sparc64)
2248             cpuflags="-mcpu=v9"
2249         ;;
2250     esac
2251
2252 elif enabled arm; then
2253
2254     case $cpu in
2255         armv*)
2256             cpuflags="-march=$cpu"
2257             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2258         ;;
2259         *)
2260             cpuflags="-mcpu=$cpu"
2261             case $cpu in
2262                 cortex-a*)                               subarch=armv7a  ;;
2263                 cortex-r*)                               subarch=armv7r  ;;
2264                 cortex-m*)                               subarch=armv7m  ;;
2265                 arm11*)                                  subarch=armv6   ;;
2266                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2267                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2268             esac
2269         ;;
2270     esac
2271
2272 elif enabled alpha; then
2273
2274     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2275
2276 elif enabled bfin; then
2277
2278     cpuflags="-mcpu=$cpu"
2279
2280 elif enabled mips; then
2281
2282     cpuflags="-march=$cpu"
2283
2284 elif enabled avr32; then
2285
2286     case $cpu in
2287         ap7[02]0[0-2])
2288             subarch="avr32_ap"
2289             cpuflags="-mpart=$cpu"
2290         ;;
2291         ap)
2292             subarch="avr32_ap"
2293             cpuflags="-march=$cpu"
2294         ;;
2295         uc3[ab]*)
2296             subarch="avr32_uc"
2297             cpuflags="-mcpu=$cpu"
2298         ;;
2299         uc)
2300             subarch="avr32_uc"
2301             cpuflags="-march=$cpu"
2302         ;;
2303     esac
2304
2305 fi
2306
2307 add_cflags $cpuflags
2308 add_asflags $cpuflags
2309
2310 # compiler sanity check
2311 check_exec <<EOF
2312 int main(void){ return 0; }
2313 EOF
2314 if test "$?" != 0; then
2315     echo "$cc is unable to create an executable file."
2316     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2317         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2318         echo "Only do this if you know what cross compiling means."
2319     fi
2320     die "C compiler test failed."
2321 fi
2322
2323 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2324 check_cflags -std=c99
2325 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2326 #include <stdlib.h>
2327 EOF
2328 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2329 #include <stdlib.h>
2330 EOF
2331
2332 check_host_cflags -std=c99
2333
2334 case "$arch" in
2335     alpha|ia64|mips|parisc|sparc)
2336         spic=$shared
2337     ;;
2338     x86)
2339         subarch="x86_32"
2340         check_cc <<EOF && subarch="x86_64"
2341         int test[(int)sizeof(char*) - 7];
2342 EOF
2343         if test "$subarch" = "x86_64"; then
2344             spic=$shared
2345         fi
2346     ;;
2347 esac
2348
2349 enable $subarch
2350 enabled spic && enable pic
2351
2352 # OS specific
2353 case $target_os in
2354     haiku)
2355         prefix_default="/boot/common"
2356         network_extralibs="-lnetwork"
2357         host_libs=
2358         ;;
2359     sunos)
2360         FFSERVERLDFLAGS=""
2361         SHFLAGS='-shared -Wl,-h,$$(@F)'
2362         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2363         network_extralibs="-lsocket -lnsl"
2364         add_cppflags -D__EXTENSIONS__
2365         nm_opts='-P -g'
2366         ;;
2367     netbsd)
2368         disable symver
2369         oss_indev_extralibs="-lossaudio"
2370         oss_outdev_extralibs="-lossaudio"
2371         add_cppflags -D_XOPEN_SOURCE=600
2372         ;;
2373     openbsd)
2374         enable malloc_aligned
2375         # On OpenBSD 4.5. the compiler does not use PIC unless
2376         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2377         # however the generated executable will not do anything
2378         # (simply quits with exit-code 1, no crash, no output).
2379         # Thus explicitly enable PIC here.
2380         enable pic
2381         disable symver
2382         SHFLAGS='-shared'
2383         oss_indev_extralibs="-lossaudio"
2384         oss_outdev_extralibs="-lossaudio"
2385         ;;
2386     dragonfly)
2387         enable malloc_aligned
2388         disable symver
2389         ;;
2390     freebsd)
2391         enable malloc_aligned
2392         ;;
2393     bsd/os)
2394         add_extralibs -lpoll -lgnugetopt
2395         ;;
2396     darwin)
2397         enable malloc_aligned
2398         gas="gas-preprocessor.pl $cc"
2399         enabled ppc && add_asflags -force_cpusubtype_ALL
2400         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2401         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2402         add_ldflags -Wl,-dynamic,-search_paths_first
2403         SLIBSUF=".dylib"
2404         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2405         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2406         FFSERVERLDFLAGS=-Wl,-bind_at_load
2407         objformat="macho"
2408         enabled x86_64 && objformat="macho64"
2409         enabled_any pic shared ||
2410             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2411         ;;
2412     mingw32*)
2413         if test $target_os = "mingw32ce"; then
2414             disable network
2415         else
2416             target_os=mingw32
2417         fi
2418         LIBTARGET=i386
2419         if enabled x86_64; then
2420             enable malloc_aligned
2421             LIBTARGET="i386:x86-64"
2422         elif enabled arm; then
2423             LIBTARGET=arm-wince
2424         fi
2425         shlibdir_default="$bindir_default"
2426         SLIBPREF=""
2427         SLIBSUF=".dll"
2428         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2429         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2430         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2431         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2432             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2433             install -d "$(LIBDIR)"; \
2434             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2435         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2436         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'
2437         objformat="win32"
2438         dlltool="${cross_prefix}dlltool"
2439         enable dos_paths
2440         check_cflags -fno-common
2441         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2442                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2443                 die "ERROR: MinGW runtime version must be >= 3.15."
2444         add_cppflags -U__STRICT_ANSI__
2445         ;;
2446     cygwin*)
2447         target_os=cygwin
2448         shlibdir_default="$bindir_default"
2449         SLIBPREF="cyg"
2450         SLIBSUF=".dll"
2451         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2452         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2453         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2454         objformat="win32"
2455         enable dos_paths
2456         check_cflags -fno-common
2457         ;;
2458     *-dos|freedos|opendos)
2459         network_extralibs="-lsocket"
2460         objformat="coff"
2461         enable dos_paths
2462         ;;
2463     linux)
2464         enable dv1394
2465         ;;
2466     irix*)
2467         target_os=irix
2468         ranlib="echo ignoring ranlib"
2469         ;;
2470     os/2*)
2471         ln_s="cp -f"
2472         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2473         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2474         FFSERVERLDFLAGS=""
2475         LIBSUF="_s.a"
2476         SLIBPREF=""
2477         SLIBSUF=".dll"
2478         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2479         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2480         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2481           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2482           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2483           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2484           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2485           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2486         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2487           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2488         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2489         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2490         enable dos_paths
2491         ;;
2492     gnu/kfreebsd)
2493         ;;
2494     gnu)
2495         ;;
2496     qnx)
2497         add_cppflags -D_QNX_SOURCE
2498         network_extralibs="-lsocket"
2499         ;;
2500     none)
2501         ;;
2502     *)
2503         die "Unknown OS '$target_os'."
2504         ;;
2505 esac
2506
2507 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2508
2509 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2510
2511 set_default $PATHS_LIST
2512
2513 # we need to build at least one lib type
2514 if ! enabled_any static shared; then
2515     cat <<EOF
2516 At least one library type must be built.
2517 Specify --enable-static to build the static libraries or --enable-shared to
2518 build the shared libraries as well. To only build the shared libraries specify
2519 --disable-static in addition to --enable-shared.
2520 EOF
2521     exit 1;
2522 fi
2523
2524 disabled static && LIBNAME=""
2525
2526 die_license_disabled() {
2527     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2528 }
2529
2530 die_license_disabled gpl libx264
2531 die_license_disabled gpl libxavs
2532 die_license_disabled gpl libxvid
2533 die_license_disabled gpl postproc
2534 die_license_disabled gpl x11grab
2535
2536 die_license_disabled nonfree libfaac
2537
2538 die_license_disabled version3 libopencore_amrnb
2539 die_license_disabled version3 libopencore_amrwb
2540
2541 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2542
2543 disabled optimizations || check_cflags -fomit-frame-pointer
2544
2545 enable_pic() {
2546     enable pic
2547     add_cppflags -DPIC
2548     add_cflags   -fPIC
2549     add_asflags  -fPIC
2550 }
2551
2552 enabled pic && enable_pic
2553
2554 check_cc <<EOF || die "Symbol mangling check failed."
2555 int ff_extern;
2556 EOF
2557 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2558 extern_prefix=${sym%%ff_extern*}
2559
2560 check_cc <<EOF && enable inline_asm
2561 void foo(void) { __asm__ volatile ("" ::); }
2562 EOF
2563
2564 _restrict=
2565 for restrict_keyword in restrict __restrict__ __restrict; do
2566     check_cc <<EOF && _restrict=$restrict_keyword && break
2567 void foo(char * $restrict_keyword p);
2568 EOF
2569 done
2570
2571 check_cc <<EOF && enable attribute_packed
2572 struct { int x; } __attribute__((packed)) x;
2573 EOF
2574
2575 check_cc <<EOF && enable attribute_may_alias
2576 union { int x; } __attribute__((may_alias)) x;
2577 EOF
2578
2579 check_cc <<EOF || die "endian test failed"
2580 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2581 EOF
2582 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2583
2584 if enabled alpha; then
2585
2586     check_cflags -mieee
2587
2588 elif enabled arm; then
2589
2590     check_cflags -marm
2591     nogas=die
2592
2593     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2594         enable vfp_args
2595     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2596         case "${cross_prefix:-$cc}" in
2597             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2598             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2599 __asm__ (".eabi_attribute 28, 1");
2600 int main(void) { return 0; }
2601 EOF
2602         esac
2603         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2604     fi
2605
2606     # We have to check if pld is a nop and disable it.
2607     check_asm pld '"pld [r0]"'
2608
2609     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2610     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2611     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2612     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2613     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2614     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2615
2616     enabled_all armv6t2 shared !pic && enable_pic
2617
2618 elif enabled mips; then
2619
2620     check_asm loongson '"dmult.g $1, $2, $3"'
2621     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2622
2623 elif enabled ppc; then
2624
2625     enable local_aligned_8 local_aligned_16
2626
2627     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2628     check_asm ibm_asm   '"add 0, 0, 0"'
2629     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2630     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2631
2632     # AltiVec flags: The FSF version of GCC differs from the Apple version
2633     if enabled altivec; then
2634         nogas=warn
2635         check_cflags -maltivec -mabi=altivec &&
2636         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2637         check_cflags -faltivec
2638
2639         # check if our compiler supports Motorola AltiVec C API
2640         check_cc <<EOF || disable altivec
2641 $inc_altivec_h
2642 int main(void) {
2643     vector signed int v1, v2, v3;
2644     v1 = vec_add(v2,v3);
2645     return 0;
2646 }
2647 EOF
2648
2649         # check if our compiler supports braces for vector declarations
2650         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2651 $inc_altivec_h
2652 int main (void) { (vector int) {1}; return 0; }
2653 EOF
2654     fi
2655
2656 elif enabled sparc; then
2657
2658     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2659         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2660
2661 elif enabled x86; then
2662
2663     enable local_aligned_8 local_aligned_16
2664
2665     # check whether EBP is available on x86
2666     # As 'i' is stored on the stack, this program will crash
2667     # if the base pointer is used to access it because the
2668     # base pointer is cleared in the inline assembly code.
2669     check_exec_crash <<EOF && enable ebp_available
2670     volatile int i=0;
2671     __asm__ volatile (
2672         "xorl %%ebp, %%ebp"
2673     ::: "%ebp");
2674     return i;
2675 EOF
2676
2677     # check whether EBX is available on x86
2678     check_asm ebx_available '""::"b"(0)' &&
2679         check_asm ebx_available '"":::"%ebx"'
2680
2681     # check whether xmm clobbers are supported
2682     check_asm xmm_clobbers '"":::"%xmm0"'
2683
2684     # check whether more than 10 operands are supported
2685     check_cc <<EOF && enable ten_operands
2686 int main(void) {
2687     int x=0;
2688     __asm__ volatile(
2689         ""
2690         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2691     );
2692     return 0;
2693 }
2694 EOF
2695
2696     # check whether binutils is new enough to compile SSSE3/MMX2
2697     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2698     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2699
2700     check_asm bswap '"bswap %%eax" ::: "%eax"'
2701
2702     if ! disabled_any asm mmx yasm; then
2703         if check_cmd $yasmexe --version; then
2704             enabled x86_64 && yasm_extra="-m amd64"
2705             yasm_debug="-g dwarf2"
2706         elif check_cmd nasm -v; then
2707             yasmexe=nasm
2708             yasm_debug="-g -F dwarf"
2709             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2710         fi
2711
2712         YASMFLAGS="-f $objformat $yasm_extra"
2713         enabled pic               && append YASMFLAGS "-DPIC"
2714         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2715         case "$objformat" in
2716             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2717         esac
2718
2719         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2720             die "yasm not found, use --disable-yasm for a crippled build"
2721         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2722     fi
2723
2724     case "$cpu" in
2725         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2726             disable fast_clz
2727         ;;
2728     esac
2729
2730 fi
2731
2732 if enabled asm; then
2733     as=${gas:=$as}
2734     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2735         $nogas "GNU assembler not found, install gas-preprocessor"
2736 fi
2737
2738 check_ldflags -Wl,--as-needed
2739
2740 if check_func dlopen; then
2741     ldl=
2742 elif check_func dlopen -ldl; then
2743     ldl=-ldl
2744 fi
2745
2746 if enabled network; then
2747     check_type "sys/types.h sys/socket.h" socklen_t
2748     check_type netdb.h "struct addrinfo"
2749     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2750     check_type netinet/in.h "struct sockaddr_in6"
2751     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2752     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2753     # Prefer arpa/inet.h over winsock2
2754     if check_header arpa/inet.h ; then
2755         check_func closesocket
2756     elif check_header winsock2.h ; then
2757         check_func_headers winsock2.h closesocket -lws2 && \
2758             network_extralibs="-lws2" || \
2759         { check_func_headers winsock2.h closesocket -lws2_32 && \
2760             network_extralibs="-lws2_32"; }
2761         check_type ws2tcpip.h socklen_t
2762         check_type ws2tcpip.h "struct addrinfo"
2763         check_type ws2tcpip.h "struct ipv6_mreq"
2764         check_type ws2tcpip.h "struct sockaddr_in6"
2765         check_type ws2tcpip.h "struct sockaddr_storage"
2766         check_struct winsock2.h "struct sockaddr" sa_len
2767     else
2768         disable network
2769     fi
2770 fi
2771
2772 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2773 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2774
2775 check_func  fcntl
2776 check_func  fork
2777 check_func  getaddrinfo $network_extralibs
2778 check_func  gethrtime
2779 check_func  getrusage
2780 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2781 check_func  inet_aton $network_extralibs
2782 check_func  isatty
2783 check_func  localtime_r
2784 check_func  ${malloc_prefix}memalign            && enable memalign
2785 check_func  mkstemp
2786 check_func  mmap
2787 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2788 check_func  setrlimit
2789 check_func  strerror_r
2790 check_func  strtok_r
2791 check_func_headers conio.h kbhit
2792 check_func_headers io.h setmode
2793 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2794 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2795 check_func_headers windows.h GetProcessTimes
2796 check_func_headers windows.h MapViewOfFile
2797 check_func_headers windows.h VirtualAlloc
2798
2799 check_header dlfcn.h
2800 check_header dxva2api.h
2801 check_header libcrystalhd/libcrystalhd_if.h
2802 check_header malloc.h
2803 check_header poll.h
2804 check_header sys/mman.h
2805 check_header sys/resource.h
2806 check_header sys/select.h
2807 check_header termios.h
2808 check_header vdpau/vdpau.h
2809 check_header vdpau/vdpau_x11.h
2810 check_header X11/extensions/XvMClib.h
2811
2812 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2813
2814 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2815      enabled_any $need_memalign ; then
2816     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2817 fi
2818
2819 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2820 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2821
2822 # check for some common methods of building with pthread support
2823 # do this before the optional library checks as some of them require pthreads
2824 if ! disabled pthreads && ! enabled w32threads; then
2825     enable pthreads
2826     if check_func pthread_create; then
2827         :
2828     elif check_func pthread_create -pthread; then
2829         add_cflags -pthread
2830         add_extralibs -pthread
2831     elif check_func pthread_create -pthreads; then
2832         add_cflags -pthreads
2833         add_extralibs -pthreads
2834     elif check_func pthread_create -lpthreadGC2; then
2835         add_extralibs -lpthreadGC2
2836     elif ! check_lib pthread.h pthread_create -lpthread; then
2837         disable pthreads
2838     fi
2839 fi
2840
2841 for thread in $THREADS_LIST; do
2842     if enabled $thread; then
2843         test -n "$thread_type" &&
2844             die "ERROR: Only one thread type must be selected." ||
2845             thread_type="$thread"
2846     fi
2847 done
2848
2849 check_lib math.h sin -lm
2850 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2851
2852 check_mathfunc exp2
2853 check_mathfunc exp2f
2854 check_mathfunc llrint
2855 check_mathfunc llrintf
2856 check_mathfunc log2
2857 check_mathfunc log2f
2858 check_mathfunc lrint
2859 check_mathfunc lrintf
2860 check_mathfunc round
2861 check_mathfunc roundf
2862 check_mathfunc truncf
2863
2864 # these are off by default, so fail if requested and not available
2865 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2866 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2867 enabled libdirac   && require_pkg_config dirac                          \
2868     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2869     "dirac_decoder_init dirac_encoder_init"
2870 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2871 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2872 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2873 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2874 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2875 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2876 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2877 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2878 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2879 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2880 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2881 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2882 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2883 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2884 enabled libvpx     && {
2885     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2886                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2887     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2888                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2889 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2890                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2891                         die "ERROR: libx264 version must be >= 0.99."; }
2892 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2893 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2894 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2895
2896 # libdc1394 check
2897 if enabled libdc1394; then
2898     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2899         enable libdc1394_2; } ||
2900     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2901         enable libdc1394_1; } ||
2902     die "ERROR: No version of libdc1394 found "
2903 fi
2904
2905 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2906     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2907     enable sdl &&
2908     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2909 fi
2910
2911 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2912
2913 check_header linux/fb.h
2914 check_header linux/videodev.h
2915 check_header linux/videodev2.h
2916 check_header sys/videoio.h
2917
2918 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2919 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2920 # w32api 3.12 had it defined wrong
2921 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2922
2923 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2924 { check_header dev/bktr/ioctl_meteor.h &&
2925   check_header dev/bktr/ioctl_bt848.h; } ||
2926 { check_header machine/ioctl_meteor.h &&
2927   check_header machine/ioctl_bt848.h; } ||
2928 { check_header dev/video/meteor/ioctl_meteor.h &&
2929   check_header dev/video/bktr/ioctl_bt848.h; } ||
2930 check_header dev/ic/bt8xx.h
2931
2932 check_header sndio.h
2933 check_header sys/soundcard.h
2934 check_header soundcard.h
2935
2936 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2937
2938 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2939
2940 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2941
2942 enabled x11grab                         &&
2943 check_header X11/Xlib.h                 &&
2944 check_header X11/extensions/XShm.h      &&
2945 check_header X11/extensions/Xfixes.h    &&
2946 check_func XOpenDisplay -lX11           &&
2947 check_func XShmCreateImage -lX11 -lXext &&
2948 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2949
2950 if ! disabled vaapi; then
2951     check_lib va/va.h vaInitialize -lva && {
2952         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2953         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2954     } || disable vaapi
2955 fi
2956
2957 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2958 check_cpp_condition \
2959     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2960     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2961       disable vdpau; }
2962 fi
2963
2964 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2965
2966 # add some useful compiler flags if supported
2967 check_cflags -Wdeclaration-after-statement
2968 check_cflags -Wall
2969 check_cflags -Wno-parentheses
2970 check_cflags -Wno-switch
2971 check_cflags -Wdisabled-optimization
2972 check_cflags -Wpointer-arith
2973 check_cflags -Wredundant-decls
2974 check_cflags -Wno-pointer-sign
2975 check_cflags -Wcast-qual
2976 check_cflags -Wwrite-strings
2977 check_cflags -Wtype-limits
2978 check_cflags -Wundef
2979 check_cflags -Wmissing-prototypes
2980 enabled extra_warnings && check_cflags -Winline
2981
2982 # add some linker flags
2983 check_ldflags -Wl,--warn-common
2984 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2985 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2986
2987 echo "X{};" > $TMPV
2988 if test_ldflags -Wl,--version-script,$TMPV; then
2989     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2990     check_cc <<EOF && enable symver_asm_label
2991 void ff_foo(void) __asm__ ("av_foo@VERSION");
2992 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2993 EOF
2994     check_cc <<EOF && enable symver_gnu_asm
2995 __asm__(".symver ff_foo,av_foo@VERSION");
2996 void ff_foo(void) {}
2997 EOF
2998 fi
2999
3000 if enabled small; then
3001     add_cflags $size_cflags
3002     optimizations="small"
3003 elif enabled optimizations; then
3004     add_cflags $speed_cflags
3005 else
3006     add_cflags $noopt_cflags
3007 fi
3008 check_cflags -fno-math-errno
3009 check_cflags -fno-signed-zeros
3010
3011 if enabled icc; then
3012     # Just warnings, no remarks
3013     check_cflags -w1
3014     # -wd: Disable following warnings
3015     # 144, 167, 556: -Wno-pointer-sign
3016     # 1292: attribute "foo" ignored
3017     # 10006: ignoring unknown option -fno-signed-zeros
3018     # 10148: ignoring unknown option -Wno-parentheses
3019     # 10156: ignoring option '-W'; no argument required
3020     check_cflags -wd144,167,556,1292,10006,10148,10156
3021     # 11030: Warning unknown option --as-needed
3022     # 10156: ignoring option '-export'; no argument required
3023     check_ldflags -wd10156,11030
3024     # Allow to compile with optimizations
3025     check_ldflags -march=$cpu
3026     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3027     enable ebp_available
3028     if enabled x86_32; then
3029         test ${icc_version%%.*} -ge 11 && \
3030             check_cflags -falign-stack=maintain-16-byte || \
3031             disable aligned_stack
3032     fi
3033 elif enabled ccc; then
3034     # disable some annoying warnings
3035     add_cflags -msg_disable cvtu32to64
3036     add_cflags -msg_disable embedcomment
3037     add_cflags -msg_disable needconstext
3038     add_cflags -msg_disable nomainieee
3039     add_cflags -msg_disable ptrmismatch1
3040     add_cflags -msg_disable unreachcode
3041 elif enabled gcc; then
3042     check_cflags -fno-tree-vectorize
3043     check_cflags -Werror=implicit-function-declaration
3044     check_cflags -Werror=missing-prototypes
3045 elif enabled llvm_gcc; then
3046     check_cflags -mllvm -stack-alignment=16
3047 elif enabled clang; then
3048     check_cflags -mllvm -stack-alignment=16
3049     check_cflags -Qunused-arguments
3050 elif enabled armcc; then
3051     # 2523: use of inline assembler is deprecated
3052     add_cflags -W${armcc_opt},--diag_suppress=2523
3053     add_cflags -W${armcc_opt},--diag_suppress=1207
3054     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3055     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3056 elif enabled tms470; then
3057     add_cflags -pds=824 -pds=837
3058 elif enabled pathscale; then
3059     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3060 fi
3061
3062 enabled_any $THREADS_LIST      && enable threads
3063
3064 check_deps $CONFIG_LIST       \
3065            $CONFIG_EXTRA      \
3066            $HAVE_LIST         \
3067            $DECODER_LIST      \
3068            $ENCODER_LIST      \
3069            $HWACCEL_LIST      \
3070            $PARSER_LIST       \
3071            $BSF_LIST          \
3072            $DEMUXER_LIST      \
3073            $MUXER_LIST        \
3074            $FILTER_LIST       \
3075            $INDEV_LIST        \
3076            $OUTDEV_LIST       \
3077            $PROTOCOL_LIST     \
3078            $ACODEC_TESTS      \
3079            $VCODEC_TESTS      \
3080            $LAVF_TESTS        \
3081            $LAVFI_TESTS       \
3082            $SEEK_TESTS        \
3083
3084 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3085
3086 echo "install prefix            $prefix"
3087 echo "source path               $source_path"
3088 echo "C compiler                $cc"
3089 echo "ARCH                      $arch ($cpu)"
3090 if test "$build_suffix" != ""; then
3091     echo "build suffix              $build_suffix"
3092 fi
3093 if test "$extra_version" != ""; then
3094     echo "version string suffix     $extra_version"
3095 fi
3096 echo "big-endian                ${bigendian-no}"
3097 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3098 if enabled x86; then
3099     echo "yasm                      ${yasm-no}"
3100     echo "MMX enabled               ${mmx-no}"
3101     echo "MMX2 enabled              ${mmx2-no}"
3102     echo "3DNow! enabled            ${amd3dnow-no}"
3103     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3104     echo "SSE enabled               ${sse-no}"
3105     echo "SSSE3 enabled             ${ssse3-no}"
3106     echo "CMOV enabled              ${cmov-no}"
3107     echo "CMOV is fast              ${fast_cmov-no}"
3108     echo "EBX available             ${ebx_available-no}"
3109     echo "EBP available             ${ebp_available-no}"
3110     echo "10 operands supported     ${ten_operands-no}"
3111 fi
3112 if enabled arm; then
3113     echo "ARMv5TE enabled           ${armv5te-no}"
3114     echo "ARMv6 enabled             ${armv6-no}"
3115     echo "ARMv6T2 enabled           ${armv6t2-no}"
3116     echo "ARM VFP enabled           ${armvfp-no}"
3117     echo "IWMMXT enabled            ${iwmmxt-no}"
3118     echo "NEON enabled              ${neon-no}"
3119 fi
3120 if enabled mips; then
3121     echo "MMI enabled               ${mmi-no}"
3122 fi
3123 if enabled ppc; then
3124     echo "AltiVec enabled           ${altivec-no}"
3125     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3126     echo "dcbzl available           ${dcbzl-no}"
3127 fi
3128 if enabled sparc; then
3129     echo "VIS enabled               ${vis-no}"
3130 fi
3131 echo "debug symbols             ${debug-no}"
3132 echo "optimizations             ${optimizations-no}"
3133 echo "static                    ${static-no}"
3134 echo "shared                    ${shared-no}"
3135 echo "postprocessing support    ${postproc-no}"
3136 echo "new filter support        ${avfilter-no}"
3137 echo "network support           ${network-no}"
3138 echo "threading support         ${thread_type-no}"
3139 echo "SDL support               ${sdl-no}"
3140 echo "Sun medialib support      ${mlib-no}"
3141 echo "AVISynth enabled          ${avisynth-no}"
3142 echo "frei0r enabled            ${frei0r-no}"
3143 echo "libdc1394 support         ${libdc1394-no}"
3144 echo "libdirac enabled          ${libdirac-no}"
3145 echo "libfaac enabled           ${libfaac-no}"
3146 echo "libgsm enabled            ${libgsm-no}"
3147 echo "libmp3lame enabled        ${libmp3lame-no}"
3148 echo "libnut enabled            ${libnut-no}"
3149 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3150 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3151 echo "libopencv support         ${libopencv-no}"
3152 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3153 echo "librtmp enabled           ${librtmp-no}"
3154 echo "libschroedinger enabled   ${libschroedinger-no}"
3155 echo "libspeex enabled          ${libspeex-no}"
3156 echo "libtheora enabled         ${libtheora-no}"
3157 echo "libvorbis enabled         ${libvorbis-no}"
3158 echo "libvpx enabled            ${libvpx-no}"
3159 echo "libx264 enabled           ${libx264-no}"
3160 echo "libxavs enabled           ${libxavs-no}"
3161 echo "libxvid enabled           ${libxvid-no}"
3162 echo "zlib enabled              ${zlib-no}"
3163 echo "bzlib enabled             ${bzlib-no}"
3164 echo
3165
3166 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3167     echo "Enabled ${type}s:"
3168     eval list=\$$(toupper $type)_LIST
3169     print_enabled '_*' $list | sort | pr -r -3 -t
3170     echo
3171 done
3172
3173 license="LGPL version 2.1 or later"
3174 if enabled nonfree; then
3175     license="nonfree and unredistributable"
3176 elif enabled gplv3; then
3177     license="GPL version 3 or later"
3178 elif enabled lgplv3; then
3179     license="LGPL version 3 or later"
3180 elif enabled gpl; then
3181     license="GPL version 2 or later"
3182 fi
3183
3184 echo "License: $license"
3185
3186 echo "Creating config.mak and config.h..."
3187
3188 # build tree in object directory if source path is different from current one
3189 if enabled source_path_used; then
3190     DIRS="
3191         doc
3192         libavcodec
3193         libavcodec/$arch
3194         libavdevice
3195         libavfilter
3196         libavfilter/$arch
3197         libavfilter/libmpcodecs
3198         libavfilter/libmpcodecs/libvo
3199         libavformat
3200         libavutil
3201         libavutil/$arch
3202         libpostproc
3203         libswscale
3204         libswscale/$arch
3205         tests
3206         tools
3207     "
3208     FILES="
3209         Makefile
3210         common.mak
3211         subdir.mak
3212         doc/texi2pod.pl
3213         libavcodec/Makefile
3214         libavcodec/${arch}/Makefile
3215         libavdevice/Makefile
3216         libavfilter/Makefile
3217         libavfilter/${arch}/Makefile
3218         libavformat/Makefile
3219         libavutil/Makefile
3220         libpostproc/Makefile
3221         libswscale/Makefile
3222     "
3223     map 'mkdir -p $v' $DIRS;
3224     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3225 fi
3226
3227 config_files="$TMPH config.mak"
3228
3229 cat > config.mak <<EOF
3230 # Automatically generated by configure - do not modify!
3231 ifndef FFMPEG_CONFIG_MAK
3232 FFMPEG_CONFIG_MAK=1
3233 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3234 prefix=$prefix
3235 LIBDIR=\$(DESTDIR)$libdir
3236 SHLIBDIR=\$(DESTDIR)$shlibdir
3237 INCDIR=\$(DESTDIR)$incdir
3238 BINDIR=\$(DESTDIR)$bindir
3239 DATADIR=\$(DESTDIR)$datadir
3240 MANDIR=\$(DESTDIR)$mandir
3241 SRC_PATH="$source_path"
3242 SRC_PATH_BARE=$source_path
3243 BUILD_ROOT="$PWD"
3244 CC_IDENT=$cc_ident
3245 ARCH=$arch
3246 CC=$cc
3247 AS=$as
3248 LD=$ld
3249 DEPCC=$dep_cc
3250 YASM=$yasmexe
3251 YASMDEP=$yasmexe
3252 AR=$ar
3253 RANLIB=$ranlib
3254 LN_S=$ln_s
3255 CPPFLAGS=$CPPFLAGS
3256 CFLAGS=$CFLAGS
3257 ASFLAGS=$ASFLAGS
3258 CC_O=$CC_O
3259 DLLTOOL=$dlltool
3260 LDFLAGS=$LDFLAGS
3261 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3262 SHFLAGS=$SHFLAGS
3263 YASMFLAGS=$YASMFLAGS
3264 BUILDSUF=$build_suffix
3265 FULLNAME=$FULLNAME
3266 LIBPREF=$LIBPREF
3267 LIBSUF=$LIBSUF
3268 LIBNAME=$LIBNAME
3269 SLIBPREF=$SLIBPREF
3270 SLIBSUF=$SLIBSUF
3271 EXESUF=$EXESUF
3272 EXTRA_VERSION=$extra_version
3273 DEPFLAGS=$DEPFLAGS
3274 CCDEP=$CCDEP
3275 ASDEP=$ASDEP
3276 CC_DEPFLAGS=$CC_DEPFLAGS
3277 AS_DEPFLAGS=$AS_DEPFLAGS
3278 HOSTCC=$host_cc
3279 HOSTCFLAGS=$host_cflags
3280 HOSTEXESUF=$HOSTEXESUF
3281 HOSTLDFLAGS=$host_ldflags
3282 HOSTLIBS=$host_libs
3283 TARGET_EXEC=$target_exec
3284 TARGET_PATH=$target_path
3285 SDL_LIBS=$sdl_libs
3286 SDL_CFLAGS=$sdl_cflags
3287 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3288 EXTRALIBS=$extralibs
3289 INSTALL=install
3290 LIBTARGET=${LIBTARGET}
3291 SLIBNAME=${SLIBNAME}
3292 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3293 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3294 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3295 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3296 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3297 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3298 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3299 EOF
3300
3301 get_version(){
3302     name=$1
3303     file=$source_path/$2
3304     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3305     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3306     lcname=$(tolower $name)
3307     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3308     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3309 }
3310
3311 get_version LIBSWSCALE  libswscale/swscale.h
3312 get_version LIBPOSTPROC libpostproc/postprocess.h
3313 get_version LIBAVCODEC  libavcodec/version.h
3314 get_version LIBAVDEVICE libavdevice/avdevice.h
3315 get_version LIBAVFORMAT libavformat/version.h
3316 get_version LIBAVUTIL   libavutil/avutil.h
3317 get_version LIBAVFILTER libavfilter/avfilter.h
3318
3319 cat > $TMPH <<EOF
3320 /* Automatically generated by configure - do not modify! */
3321 #ifndef FFMPEG_CONFIG_H
3322 #define FFMPEG_CONFIG_H
3323 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3324 #define FFMPEG_LICENSE "$(c_escape $license)"
3325 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3326 #define CC_TYPE "$cc_type"
3327 #define CC_VERSION $cc_version
3328 #define restrict $_restrict
3329 #define EXTERN_PREFIX "${extern_prefix}"
3330 #define EXTERN_ASM ${extern_prefix}
3331 #define SLIBSUF "$SLIBSUF"
3332 EOF
3333
3334 test -n "$malloc_prefix" &&
3335     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3336
3337 if enabled small || disabled optimizations; then
3338     echo "#undef  av_always_inline"  >> $TMPH
3339     if enabled small; then
3340         echo "#define av_always_inline inline"  >> $TMPH
3341     else
3342         echo "#define av_always_inline av_unused"  >> $TMPH
3343     fi
3344 fi
3345
3346 if enabled yasm; then
3347     append config_files $TMPASM
3348     printf '' >$TMPASM
3349 fi
3350
3351 print_config ARCH_   "$config_files" $ARCH_LIST
3352 print_config HAVE_   "$config_files" $HAVE_LIST
3353 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3354                                      $CONFIG_EXTRA      \
3355                                      $DECODER_LIST      \
3356                                      $ENCODER_LIST      \
3357                                      $HWACCEL_LIST      \
3358                                      $PARSER_LIST       \
3359                                      $BSF_LIST          \
3360                                      $DEMUXER_LIST      \
3361                                      $MUXER_LIST        \
3362                                      $FILTER_LIST       \
3363                                      $PROTOCOL_LIST     \
3364                                      $INDEV_LIST        \
3365                                      $OUTDEV_LIST       \
3366
3367 cat >>config.mak <<EOF
3368 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3369 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3370 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3371 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3372 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3373 EOF
3374
3375 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3376 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3377
3378 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3379 cp_if_changed $TMPH config.h
3380 touch .config
3381
3382 enabled yasm && cp_if_changed $TMPASM config.asm
3383
3384 cat > $TMPH <<EOF
3385 /* Generated by ffconf */
3386 #ifndef AVUTIL_AVCONFIG_H
3387 #define AVUTIL_AVCONFIG_H
3388 EOF
3389
3390 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3391
3392 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3393
3394 cp_if_changed $TMPH libavutil/avconfig.h
3395
3396 test -n "$WARNINGS" && printf "\n$WARNINGS"
3397
3398 # build pkg-config files
3399
3400 pkgconfig_generate(){
3401 name=$1
3402 shortname=${name#lib}${build_suffix}
3403 comment=$2
3404 version=$3
3405 libs=$4
3406 requires=$5
3407 enabled ${name#lib} || return 0
3408 cat <<EOF > $name/$name.pc
3409 prefix=$prefix
3410 exec_prefix=\${prefix}
3411 libdir=$libdir
3412 includedir=$incdir
3413
3414 Name: $name
3415 Description: $comment
3416 Version: $version
3417 Requires: $(enabled shared || echo $requires)
3418 Requires.private: $(enabled shared && echo $requires)
3419 Conflicts:
3420 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3421 Libs.private: $(enabled shared && echo $libs)
3422 Cflags: -I\${includedir}
3423 EOF
3424 cat <<EOF > $name/$name-uninstalled.pc
3425 prefix=
3426 exec_prefix=
3427 libdir=\${pcfiledir}
3428 includedir=${source_path}
3429
3430 Name: $name
3431 Description: $comment
3432 Version: $version
3433 Requires: $requires
3434 Conflicts:
3435 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3436 Cflags: -I\${includedir}
3437 EOF
3438 }
3439
3440 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3441 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3442 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3443 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3444 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3445 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3446 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"