vaapi: require version >= 0.32.0.
[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     threads
1122     truncf
1123     vfp_args
1124     VirtualAlloc
1125     winsock2_h
1126     xform_asm
1127     xmm_clobbers
1128     yasm
1129 "
1130
1131 # options emitted with CONFIG_ prefix but not available on command line
1132 CONFIG_EXTRA="
1133     avutil
1134     gplv3
1135     lgplv3
1136 "
1137
1138 CMDLINE_SELECT="
1139     $ARCH_EXT_LIST
1140     $CONFIG_LIST
1141     $THREADS_LIST
1142     asm
1143     cross_compile
1144     debug
1145     extra_warnings
1146     logging
1147     optimizations
1148     symver
1149     yasm
1150 "
1151
1152 PATHS_LIST='
1153     bindir
1154     datadir
1155     incdir
1156     libdir
1157     mandir
1158     prefix
1159     shlibdir
1160 '
1161
1162 CMDLINE_SET="
1163     $PATHS_LIST
1164     ar
1165     arch
1166     as
1167     build_suffix
1168     cc
1169     cpu
1170     cross_prefix
1171     dep_cc
1172     extra_version
1173     host_cc
1174     host_cflags
1175     host_ldflags
1176     host_libs
1177     host_os
1178     ld
1179     logfile
1180     malloc_prefix
1181     nm
1182     pkg_config
1183     samples
1184     source_path
1185     sysinclude
1186     sysroot
1187     target_exec
1188     target_os
1189     target_path
1190 "
1191
1192 CMDLINE_APPEND="
1193     extra_cflags
1194 "
1195
1196 # code dependency declarations
1197
1198 # architecture extensions
1199
1200 armv5te_deps="arm"
1201 armv6_deps="arm"
1202 armv6t2_deps="arm"
1203 armvfp_deps="arm"
1204 iwmmxt_deps="arm"
1205 neon_deps="arm"
1206
1207 mmi_deps="mips"
1208
1209 altivec_deps="ppc"
1210 ppc4xx_deps="ppc"
1211
1212 vis_deps="sparc"
1213
1214 x86_64_suggest="cmov fast_cmov"
1215 amd3dnow_deps="mmx"
1216 amd3dnowext_deps="amd3dnow"
1217 mmx_deps="x86"
1218 mmx2_deps="mmx"
1219 sse_deps="mmx"
1220 ssse3_deps="sse"
1221 avx_deps="ssse3"
1222
1223 aligned_stack_if_any="ppc x86"
1224 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1225 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1226 fast_unaligned_if_any="armv6 ppc x86"
1227
1228 need_memalign="altivec neon sse"
1229 inline_asm_deps="!tms470"
1230
1231 symver_if_any="symver_asm_label symver_gnu_asm"
1232
1233 # subsystems
1234 dct_select="rdft"
1235 mdct_select="fft"
1236 rdft_select="fft"
1237
1238 # decoders / encoders / hardware accelerators
1239 aac_decoder_select="mdct rdft sinewin"
1240 aac_encoder_select="mdct sinewin"
1241 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1242 ac3_decoder_select="mdct ac3dsp ac3_parser"
1243 ac3_encoder_select="mdct ac3dsp"
1244 ac3_fixed_encoder_select="ac3dsp"
1245 alac_encoder_select="lpc"
1246 amrnb_decoder_select="lsp"
1247 amrwb_decoder_select="lsp"
1248 atrac1_decoder_select="mdct sinewin"
1249 atrac3_decoder_select="mdct"
1250 binkaudio_dct_decoder_select="mdct rdft dct"
1251 binkaudio_rdft_decoder_select="mdct rdft"
1252 cavs_decoder_select="golomb"
1253 cook_decoder_select="mdct sinewin"
1254 cscd_decoder_suggest="zlib"
1255 dca_decoder_select="mdct"
1256 dnxhd_encoder_select="aandct"
1257 dxa_decoder_select="zlib"
1258 eac3_decoder_select="ac3_decoder"
1259 eamad_decoder_select="aandct"
1260 eatgq_decoder_select="aandct"
1261 eatqi_decoder_select="aandct"
1262 ffv1_decoder_select="golomb"
1263 flac_decoder_select="golomb"
1264 flac_encoder_select="golomb lpc"
1265 flashsv_decoder_select="zlib"
1266 flashsv_encoder_select="zlib"
1267 flv_decoder_select="h263_decoder"
1268 flv_encoder_select="h263_encoder"
1269 fraps_decoder_select="huffman"
1270 h261_encoder_select="aandct"
1271 h263_decoder_select="h263_parser"
1272 h263_encoder_select="aandct"
1273 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1274 h263i_decoder_select="h263_decoder"
1275 h263p_encoder_select="h263_encoder"
1276 h264_decoder_select="golomb h264dsp h264pred"
1277 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1278 h264_dxva2_hwaccel_deps="dxva2api_h"
1279 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1280 h264_vaapi_hwaccel_select="vaapi"
1281 h264_vdpau_decoder_select="vdpau h264_decoder"
1282 imc_decoder_select="fft mdct"
1283 jpegls_decoder_select="golomb"
1284 jpegls_encoder_select="golomb"
1285 ljpeg_encoder_select="aandct"
1286 loco_decoder_select="golomb"
1287 mjpeg_encoder_select="aandct"
1288 mlp_decoder_select="mlp_parser"
1289 mp1float_decoder_select="dct"
1290 mp2float_decoder_select="dct"
1291 mp3adufloat_decoder_select="dct"
1292 mp3float_decoder_select="dct"
1293 mp3on4float_decoder_select="dct"
1294 mpeg1video_encoder_select="aandct"
1295 mpeg2video_encoder_select="aandct"
1296 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1297 mpeg4_encoder_select="h263_encoder"
1298 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1299 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1300 mpeg2_crystalhd_decoder_select="crystalhd"
1301 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1302 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1303 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1304 mpeg4_crystalhd_decoder_select="crystalhd"
1305 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1306 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1307 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1308 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1309 msmpeg4_crystalhd_decoder_select="crystalhd"
1310 msmpeg4v1_decoder_select="h263_decoder"
1311 msmpeg4v1_encoder_select="h263_encoder"
1312 msmpeg4v2_decoder_select="h263_decoder"
1313 msmpeg4v2_encoder_select="h263_encoder"
1314 msmpeg4v3_decoder_select="h263_decoder"
1315 msmpeg4v3_encoder_select="h263_encoder"
1316 nellymoser_decoder_select="mdct sinewin"
1317 nellymoser_encoder_select="mdct sinewin"
1318 png_decoder_select="zlib"
1319 png_encoder_select="zlib"
1320 qcelp_decoder_select="lsp"
1321 qdm2_decoder_select="mdct rdft"
1322 ra_144_encoder_select="lpc"
1323 rv10_decoder_select="h263_decoder"
1324 rv10_encoder_select="h263_encoder"
1325 rv20_decoder_select="h263_decoder"
1326 rv20_encoder_select="h263_encoder"
1327 rv30_decoder_select="golomb h264pred"
1328 rv40_decoder_select="golomb h264pred"
1329 shorten_decoder_select="golomb"
1330 sipr_decoder_select="lsp"
1331 snow_decoder_select="dwt"
1332 snow_encoder_select="aandct dwt"
1333 sonic_decoder_select="golomb"
1334 sonic_encoder_select="golomb"
1335 sonic_ls_encoder_select="golomb"
1336 svq1_encoder_select="aandct"
1337 svq3_decoder_select="golomb h264dsp h264pred"
1338 svq3_decoder_suggest="zlib"
1339 theora_decoder_select="vp3_decoder"
1340 tiff_decoder_suggest="zlib"
1341 tiff_encoder_suggest="zlib"
1342 truehd_decoder_select="mlp_decoder"
1343 tscc_decoder_select="zlib"
1344 twinvq_decoder_select="mdct lsp sinewin"
1345 vc1_decoder_select="h263_decoder"
1346 vc1_crystalhd_decoder_select="crystalhd"
1347 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1348 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1349 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1350 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1351 vorbis_decoder_select="mdct"
1352 vorbis_encoder_select="mdct"
1353 vp6_decoder_select="huffman"
1354 vp6a_decoder_select="vp6_decoder"
1355 vp6f_decoder_select="vp6_decoder"
1356 vp8_decoder_select="h264pred"
1357 wmapro_decoder_select="mdct sinewin"
1358 wmav1_decoder_select="mdct sinewin"
1359 wmav1_encoder_select="mdct sinewin"
1360 wmav2_decoder_select="mdct sinewin"
1361 wmav2_encoder_select="mdct sinewin"
1362 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1363 wmv1_decoder_select="h263_decoder"
1364 wmv1_encoder_select="h263_encoder"
1365 wmv2_decoder_select="h263_decoder"
1366 wmv2_encoder_select="h263_encoder"
1367 wmv3_decoder_select="vc1_decoder"
1368 wmv3_crystalhd_decoder_select="crystalhd"
1369 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1370 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1371 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1372 zlib_decoder_select="zlib"
1373 zlib_encoder_select="zlib"
1374 zmbv_decoder_select="zlib"
1375 zmbv_encoder_select="zlib"
1376
1377 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1378 vaapi_deps="va_va_h"
1379 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1380
1381 # parsers
1382 h264_parser_select="golomb h264dsp h264pred"
1383
1384 # external libraries
1385 libdirac_decoder_deps="libdirac !libschroedinger"
1386 libdirac_encoder_deps="libdirac"
1387 libfaac_encoder_deps="libfaac"
1388 libgsm_decoder_deps="libgsm"
1389 libgsm_encoder_deps="libgsm"
1390 libgsm_ms_decoder_deps="libgsm"
1391 libgsm_ms_encoder_deps="libgsm"
1392 libmp3lame_encoder_deps="libmp3lame"
1393 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1394 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1395 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1396 libopenjpeg_decoder_deps="libopenjpeg"
1397 libschroedinger_decoder_deps="libschroedinger"
1398 libschroedinger_encoder_deps="libschroedinger"
1399 libspeex_decoder_deps="libspeex"
1400 libtheora_encoder_deps="libtheora"
1401 libvorbis_encoder_deps="libvorbis"
1402 libvpx_decoder_deps="libvpx"
1403 libvpx_encoder_deps="libvpx"
1404 libx264_encoder_deps="libx264"
1405 libxavs_encoder_deps="libxavs"
1406 libxvid_encoder_deps="libxvid"
1407
1408 # demuxers / muxers
1409 ac3_demuxer_select="ac3_parser"
1410 asf_stream_muxer_select="asf_muxer"
1411 avisynth_demuxer_deps="avisynth"
1412 dirac_demuxer_select="dirac_parser"
1413 eac3_demuxer_select="ac3_parser"
1414 flac_demuxer_select="flac_parser"
1415 ipod_muxer_select="mov_muxer"
1416 libnut_demuxer_deps="libnut"
1417 libnut_muxer_deps="libnut"
1418 matroska_audio_muxer_select="matroska_muxer"
1419 matroska_demuxer_suggest="zlib bzlib"
1420 mov_demuxer_suggest="zlib"
1421 mp3_demuxer_select="mpegaudio_parser"
1422 mp4_muxer_select="mov_muxer"
1423 mpegtsraw_demuxer_select="mpegts_demuxer"
1424 mxf_d10_muxer_select="mxf_muxer"
1425 ogg_demuxer_select="golomb"
1426 psp_muxer_select="mov_muxer"
1427 rtp_demuxer_select="sdp_demuxer"
1428 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1429 rtsp_demuxer_select="http_protocol rtpdec"
1430 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1431 sap_demuxer_select="sdp_demuxer"
1432 sap_muxer_select="rtp_muxer rtp_protocol"
1433 sdp_demuxer_select="rtpdec"
1434 spdif_muxer_select="aac_parser"
1435 tg2_muxer_select="mov_muxer"
1436 tgp_muxer_select="mov_muxer"
1437 w64_demuxer_deps="wav_demuxer"
1438
1439 # indevs / outdevs
1440 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1441 alsa_outdev_deps="alsa_asoundlib_h"
1442 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1443 dv1394_indev_deps="dv1394 dv_demuxer"
1444 fbdev_indev_deps="linux_fb_h"
1445 jack_indev_deps="jack_jack_h"
1446 libdc1394_indev_deps="libdc1394"
1447 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1448 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1449 sndio_indev_deps="sndio_h"
1450 sndio_outdev_deps="sndio_h"
1451 v4l_indev_deps="linux_videodev_h"
1452 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1453 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1454 vfwcap_indev_extralibs="-lavicap32"
1455 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1456 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1457
1458 # protocols
1459 gopher_protocol_deps="network"
1460 http_protocol_deps="network"
1461 http_protocol_select="tcp_protocol"
1462 mmsh_protocol_select="http_protocol"
1463 mmst_protocol_deps="network"
1464 rtmp_protocol_select="tcp_protocol"
1465 rtp_protocol_select="udp_protocol"
1466 tcp_protocol_deps="network"
1467 udp_protocol_deps="network"
1468
1469 # filters
1470 blackframe_filter_deps="gpl"
1471 cropdetect_filter_deps="gpl"
1472 drawtext_filter_deps="libfreetype"
1473 frei0r_filter_deps="frei0r dlopen strtok_r"
1474 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1475 hqdn3d_filter_deps="gpl"
1476 mp_filter_deps="gpl"
1477 ocv_filter_deps="libopencv"
1478 scale_filter_deps="swscale"
1479 yadif_filter_deps="gpl"
1480
1481 # libraries
1482 avdevice_deps="avcodec avformat"
1483 avformat_deps="avcodec"
1484
1485 # programs
1486 ffmpeg_deps="avcodec avformat swscale"
1487 ffmpeg_select="buffer_filter"
1488 ffplay_deps="avcodec avformat swscale sdl"
1489 ffplay_select="rdft"
1490 ffprobe_deps="avcodec avformat"
1491 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1492 ffserver_extralibs='$ldl'
1493
1494 doc_deps="texi2html"
1495
1496 # tests
1497
1498 test_deps(){
1499     suf1=$1
1500     suf2=$2
1501     shift 2
1502     for v; do
1503         dep=${v%=*}
1504         tests=${v#*=}
1505         for name in ${tests}; do
1506             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1507         done
1508     done
1509 }
1510
1511 set_ne_test_deps(){
1512     eval ${1}_be_test_deps="bigendian"
1513     eval ${1}_le_test_deps="!bigendian"
1514 }
1515
1516 test_deps _encoder _decoder                                             \
1517     adpcm_g726=g726                                                     \
1518     adpcm_ima_qt                                                        \
1519     adpcm_ima_wav                                                       \
1520     adpcm_ms                                                            \
1521     adpcm_swf                                                           \
1522     adpcm_yamaha=adpcm_yam                                              \
1523     alac                                                                \
1524     asv1                                                                \
1525     asv2                                                                \
1526     bmp                                                                 \
1527     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1528     dvvideo="dv dv50"                                                   \
1529     ffv1                                                                \
1530     flac                                                                \
1531     flashsv                                                             \
1532     flv                                                                 \
1533     gif                                                                 \
1534     h261                                                                \
1535     h263="h263 h263p"                                                   \
1536     huffyuv                                                             \
1537     jpegls                                                              \
1538     mjpeg="jpg mjpeg ljpeg"                                             \
1539     mp2                                                                 \
1540     mpeg1video="mpeg mpeg1b"                                            \
1541     mpeg2video="mpeg2 mpeg2thread"                                      \
1542     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1543     msmpeg4v3=msmpeg4                                                   \
1544     msmpeg4v2                                                           \
1545     pbm=pbmpipe                                                         \
1546     pcx                                                                 \
1547     pgm="pgm pgmpipe"                                                   \
1548     png                                                                 \
1549     ppm="ppm ppmpipe"                                                   \
1550     rawvideo="rgb yuv"                                                  \
1551     roq                                                                 \
1552     rv10                                                                \
1553     rv20                                                                \
1554     sgi                                                                 \
1555     snow="snow snowll"                                                  \
1556     svq1                                                                \
1557     targa=tga                                                           \
1558     tiff                                                                \
1559     wmav1                                                               \
1560     wmav2                                                               \
1561     wmv1                                                                \
1562     wmv2                                                                \
1563
1564 test_deps _muxer _demuxer                                               \
1565     aiff                                                                \
1566     pcm_alaw=alaw                                                       \
1567     asf                                                                 \
1568     au                                                                  \
1569     avi                                                                 \
1570     dv=dv_fmt                                                           \
1571     ffm                                                                 \
1572     flv=flv_fmt                                                         \
1573     gxf                                                                 \
1574     matroska=mkv                                                        \
1575     mmf                                                                 \
1576     mov                                                                 \
1577     pcm_mulaw=mulaw                                                     \
1578     mxf                                                                 \
1579     nut                                                                 \
1580     ogg                                                                 \
1581     rawvideo=pixfmt                                                     \
1582     rm                                                                  \
1583     swf                                                                 \
1584     mpegts=ts                                                           \
1585     voc                                                                 \
1586     wav                                                                 \
1587     yuv4mpegpipe=yuv4mpeg                                               \
1588
1589 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1590 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1591
1592 set_ne_test_deps pixdesc
1593 set_ne_test_deps pixfmts_copy
1594 set_ne_test_deps pixfmts_crop
1595 set_ne_test_deps pixfmts_hflip
1596 set_ne_test_deps pixfmts_null
1597 set_ne_test_deps pixfmts_pad
1598 set_ne_test_deps pixfmts_scale
1599 set_ne_test_deps pixfmts_vflip
1600
1601 # default parameters
1602
1603 logfile="config.log"
1604
1605 # installation paths
1606 prefix_default="/usr/local"
1607 bindir_default='${prefix}/bin'
1608 datadir_default='${prefix}/share/ffmpeg'
1609 incdir_default='${prefix}/include'
1610 libdir_default='${prefix}/lib'
1611 mandir_default='${prefix}/share/man'
1612 shlibdir_default="$libdir_default"
1613
1614 # toolchain
1615 ar_default="ar"
1616 cc_default="gcc"
1617 cc_version=\"unknown\"
1618 host_cc_default="gcc"
1619 ln_s="ln -sf"
1620 nm_default="nm"
1621 objformat="elf"
1622 pkg_config_default=pkg-config
1623 ranlib="ranlib"
1624 yasmexe="yasm"
1625 nogas=":"
1626
1627 nm_opts='-g'
1628
1629 # machine
1630 arch_default=$(uname -m)
1631 cpu="generic"
1632
1633 # OS
1634 target_os_default=$(tolower $(uname -s))
1635 host_os=$target_os_default
1636
1637 # configurable options
1638 enable avcodec
1639 enable avdevice
1640 enable avfilter
1641 enable avformat
1642 enable avutil
1643 enable asm
1644 enable debug
1645 enable doc
1646 enable fastdiv
1647 enable ffmpeg
1648 enable ffplay
1649 enable ffprobe
1650 enable ffserver
1651 enable mpegaudio_hp
1652 enable network
1653 enable optimizations
1654 enable protocols
1655 enable static
1656 enable swscale
1657 enable swscale_alpha
1658
1659 # build settings
1660 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1661 FFSERVERLDFLAGS=-Wl,-E
1662 LIBPREF="lib"
1663 LIBSUF=".a"
1664 FULLNAME='$(NAME)$(BUILDSUF)'
1665 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1666 SLIBPREF="lib"
1667 SLIBSUF=".so"
1668 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1669 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1670 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1671 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1672
1673 CC_O='-o $@'
1674
1675 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1676 host_libs='-lm'
1677
1678 target_path='$(CURDIR)'
1679
1680 # since the object filename is not given with the -MM flag, the compiler
1681 # is only able to print the basename, and we must add the path ourselves
1682 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1683 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1684
1685 # find source path
1686 source_path="$(dirname "$0")"
1687 enable source_path_used
1688 if test -f configure; then
1689     source_path="$(pwd)"
1690     disable source_path_used
1691 else
1692     source_path="$(cd "$source_path"; pwd)"
1693     echo "$source_path" | grep -q '[[:blank:]]' &&
1694         die "Out of tree builds are impossible with whitespace in source path."
1695     test -e "$source_path/config.h" &&
1696         die "Out of tree builds are impossible with config.h in source dir."
1697 fi
1698
1699 for v in "$@"; do
1700     r=${v#*=}
1701     l=${v%"$r"}
1702     r=$(sh_quote "$r")
1703     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1704 done
1705
1706 find_things(){
1707     thing=$1
1708     pattern=$2
1709     file=$source_path/$3
1710     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1711 }
1712
1713 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1714 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1715 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1716 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1717 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1718 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1719 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1720 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1721 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1722 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1723 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1724
1725 find_tests(){
1726     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1727 }
1728
1729 ACODEC_TESTS=$(find_tests acodec)
1730 VCODEC_TESTS=$(find_tests vsynth1)
1731 LAVF_TESTS=$(find_tests lavf)
1732 LAVFI_TESTS=$(find_tests lavfi)
1733 SEEK_TESTS=$(find_tests seek seek_)
1734
1735 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1736
1737 for n in $COMPONENT_LIST; do
1738     v=$(toupper ${n%s})_LIST
1739     eval enable \$$v
1740     eval ${n}_if_any="\$$v"
1741 done
1742
1743 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1744
1745 die_unknown(){
1746     echo "Unknown option \"$1\"."
1747     echo "See $0 --help for available options."
1748     exit 1
1749 }
1750
1751 show_list() {
1752     suffix=_$1
1753     shift
1754     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1755     exit 0
1756 }
1757
1758 for opt do
1759     optval="${opt#*=}"
1760     case "$opt" in
1761     --extra-ldflags=*) add_ldflags $optval
1762     ;;
1763     --extra-libs=*) add_extralibs $optval
1764     ;;
1765     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1766     ;;
1767     --enable-debug=*) debuglevel="$optval"
1768     ;;
1769     --disable-everything)
1770     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1771     ;;
1772     --enable-*=*|--disable-*=*)
1773     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1774     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1775     eval list=\$$(toupper $thing)_LIST
1776     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1777     $action $(filter "$name" $list)
1778     ;;
1779     --enable-?*|--disable-?*)
1780     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1781     if is_in $option $COMPONENT_LIST; then
1782         test $action = disable && action=unset
1783         eval $action \$$(toupper ${option%s})_LIST
1784     elif is_in $option $CMDLINE_SELECT; then
1785         $action $option
1786     else
1787         die_unknown $opt
1788     fi
1789     ;;
1790     --list-*)
1791         NAME="${opt#--list-}"
1792         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1793         NAME=${NAME%s}
1794         eval show_list $NAME \$$(toupper $NAME)_LIST
1795     ;;
1796     --help|-h) show_help
1797     ;;
1798     *)
1799     optname="${opt%%=*}"
1800     optname="${optname#--}"
1801     optname=$(echo "$optname" | sed 's/-/_/g')
1802     if is_in $optname $CMDLINE_SET; then
1803         eval $optname='$optval'
1804     elif is_in $optname $CMDLINE_APPEND; then
1805         append $optname "$optval"
1806     else
1807          die_unknown $opt
1808     fi
1809     ;;
1810     esac
1811 done
1812
1813 disabled logging && logfile=/dev/null
1814
1815 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1816 set >> $logfile
1817
1818 test -n "$cross_prefix" && enable cross_compile
1819
1820 if enabled cross_compile; then
1821     test -n "$arch" && test -n "$target_os" ||
1822         die "Must specify target arch and OS when cross-compiling"
1823 fi
1824
1825 set_default arch target_os
1826
1827 ar_default="${cross_prefix}${ar_default}"
1828 cc_default="${cross_prefix}${cc_default}"
1829 nm_default="${cross_prefix}${nm_default}"
1830 pkg_config_default="${cross_prefix}${pkg_config_default}"
1831 ranlib="${cross_prefix}${ranlib}"
1832
1833 sysinclude_default="${sysroot}/usr/include"
1834
1835 set_default cc nm pkg_config sysinclude
1836 enabled cross_compile || host_cc_default=$cc
1837 set_default host_cc
1838
1839 exesuf() {
1840     case $1 in
1841         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1842     esac
1843 }
1844
1845 EXESUF=$(exesuf $target_os)
1846 HOSTEXESUF=$(exesuf $host_os)
1847
1848 # set temporary file name
1849 : ${TMPDIR:=$TEMPDIR}
1850 : ${TMPDIR:=$TMP}
1851 : ${TMPDIR:=/tmp}
1852
1853 if ! check_cmd mktemp -u XXXXXX; then
1854     # simple replacement for missing mktemp
1855     # NOT SAFE FOR GENERAL USE
1856     mktemp(){
1857         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1858     }
1859 fi
1860
1861 tmpfile(){
1862     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1863         (set -C; exec > $tmp) 2>/dev/null ||
1864         die "Unable to create temporary file in $TMPDIR."
1865     append TMPFILES $tmp
1866     eval $1=$tmp
1867 }
1868
1869 trap 'rm -f -- $TMPFILES' EXIT
1870
1871 tmpfile TMPC  .c
1872 tmpfile TMPE  $EXESUF
1873 tmpfile TMPH  .h
1874 tmpfile TMPO  .o
1875 tmpfile TMPS  .S
1876 tmpfile TMPV  .ver
1877 tmpfile TMPSH .sh
1878 tmpfile TMPASM .asm
1879
1880 unset -f mktemp
1881
1882 chmod +x $TMPE
1883
1884 # make sure we can execute files in $TMPDIR
1885 cat > $TMPSH 2>> $logfile <<EOF
1886 #! /bin/sh
1887 EOF
1888 chmod +x $TMPSH >> $logfile 2>&1
1889 if ! $TMPSH >> $logfile 2>&1; then
1890     cat <<EOF
1891 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1892 variable to another directory and make sure that it is not mounted noexec.
1893 EOF
1894     die "Sanity test failed."
1895 fi
1896
1897 filter_cflags=echo
1898 filter_cppflags=echo
1899 filter_asflags=echo
1900
1901 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1902     cc_type=llvm_gcc
1903     cc_version=__VERSION__
1904     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1905     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1906     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1907     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1908     speed_cflags='-O3'
1909     size_cflags='-Os'
1910 elif $cc -v 2>&1 | grep -qi ^gcc; then
1911     cc_type=gcc
1912     cc_version=__VERSION__
1913     gcc_version=$($cc --version | head -n1)
1914     gcc_basever=$($cc -dumpversion)
1915     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1916     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1917     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1918     if ! $cc -dumpversion | grep -q '^2\.'; then
1919         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1920         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1921     fi
1922     speed_cflags='-O3'
1923     size_cflags='-Os'
1924 elif $cc --version 2>/dev/null | grep -q Intel; then
1925     cc_type=icc
1926     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1927     cc_ident=$($cc --version | head -n1)
1928     icc_version=$($cc -dumpversion)
1929     CC_DEPFLAGS='-MMD'
1930     AS_DEPFLAGS='-MMD'
1931     speed_cflags='-O3'
1932     size_cflags='-Os'
1933     noopt_cflags='-O1'
1934 elif $cc -v 2>&1 | grep -q xlc; then
1935     cc_type=xlc
1936     cc_version="AV_STRINGIFY(__IBMC__)"
1937     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1938     speed_cflags='-O5'
1939     size_cflags='-O5 -qcompact'
1940 elif $cc -V 2>/dev/null | grep -q Compaq; then
1941     cc_type=ccc
1942     cc_version="AV_STRINGIFY(__DECC_VER)"
1943     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1944     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1945     debuglevel=3
1946     add_ldflags -Wl,-z,now # calls to libots crash without this
1947     speed_cflags='-fast'
1948     size_cflags='-O1'
1949 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1950     test -d "$sysroot" || die "No valid sysroot specified."
1951     cc_type=armcc
1952     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1953     cc_ident=$($cc --vsn | head -n1)
1954     armcc_conf="$PWD/armcc.conf"
1955     $cc --arm_linux_configure                 \
1956         --arm_linux_config_file="$armcc_conf" \
1957         --configure_sysroot="$sysroot"        \
1958         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1959         die "Error creating armcc configuration file."
1960     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1961     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1962     as_default="${cross_prefix}gcc"
1963     CC_DEPFLAGS='-MMD'
1964     AS_DEPFLAGS='-MMD'
1965     speed_cflags='-O3'
1966     size_cflags='-Os'
1967     filter_asflags="filter_out -W${armcc_opt}*"
1968 elif $cc -version 2>/dev/null | grep -q TMS470; then
1969     cc_type=tms470
1970     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1971     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1972     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1973     CC_O='-fr=$(@D)'
1974     as_default="${cross_prefix}gcc"
1975     ld_default="${cross_prefix}gcc"
1976     TMPO=$(basename $TMPC .c).o
1977     append TMPFILES $TMPO
1978     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1979     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1980     AS_DEPFLAGS='-MMD'
1981     speed_cflags='-O3 -mf=5'
1982     size_cflags='-O3 -mf=2'
1983     filter_cflags=tms470_flags
1984     tms470_flags(){
1985         for flag; do
1986             case $flag in
1987                 -march=*|-mcpu=*)
1988                     case "${flag#*=}" in
1989                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1990                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1991                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1992                         armv6*|arm11*)          echo -mv=6   ;;
1993                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1994                                                 echo -mv=5e  ;;
1995                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1996                     esac
1997                     ;;
1998                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1999                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2000                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2001                 -msoft-float)   echo --float_support=vfplib       ;;
2002                 -O[0-3]|-mf=*)  echo $flag                        ;;
2003                 -g)             echo -g -mn                       ;;
2004                 -pds=*)         echo $flag                        ;;
2005             esac
2006         done
2007     }
2008 elif $cc -v 2>&1 | grep -q clang; then
2009     cc_type=clang
2010     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2011         cc_version=__clang_version__ || cc_version=__VERSION__
2012     cc_ident=$($cc --version | head -n1)
2013     CC_DEPFLAGS='-MMD'
2014     AS_DEPFLAGS='-MMD'
2015     speed_cflags='-O3'
2016     size_cflags='-Os'
2017 elif $cc -V 2>&1 | grep -q Sun; then
2018     cc_type=suncc
2019     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2020     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2021     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2022     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2023     speed_cflags='-O5'
2024     size_cflags='-O5 -xspace'
2025     filter_cflags=suncc_flags
2026     suncc_flags(){
2027         for flag; do
2028             case $flag in
2029                 -march=*|-mcpu=*)
2030                     case "${flag#*=}" in
2031                         native)                   echo -xtarget=native       ;;
2032                         v9|niagara)               echo -xarch=sparc          ;;
2033                         ultrasparc)               echo -xarch=sparcvis       ;;
2034                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2035                         i586|pentium)             echo -xchip=pentium        ;;
2036                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2037                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2038                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2039                         pentium4*)          echo -xtarget=pentium4           ;;
2040                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2041                         *-sse3)             echo -xarch=sse3                 ;;
2042                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2043                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2044                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2045                         k8|opteron|athlon64|athlon-fx)
2046                                                   echo -xarch=sse2a          ;;
2047                         athlon*)                  echo -xarch=pentium_proa   ;;
2048                     esac
2049                     ;;
2050                 -std=c99)             echo -xc99              ;;
2051                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2052                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2053                 -W*,*)                echo $flag              ;;
2054                 -f*-*|-W*)                                    ;;
2055                 *)                    echo $flag              ;;
2056             esac
2057         done
2058     }
2059 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2060     cc_type=pathscale
2061     cc_version=__PATHSCALE__
2062     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2063     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2064     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2065     speed_cflags='-O2'
2066     size_cflags='-Os'
2067 elif $cc -v 2>&1 | grep -q Open64; then
2068     cc_type=open64
2069     cc_version=__OPEN64__
2070     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2071     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2072     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2073     speed_cflags='-O2'
2074     size_cflags='-Os'
2075 fi
2076
2077 test -n "$cc_type" && enable $cc_type ||
2078     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2079
2080 : ${as_default:=$cc}
2081 : ${dep_cc_default:=$cc}
2082 : ${ld_default:=$cc}
2083 set_default ar as dep_cc ld
2084
2085 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2086 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2087
2088 add_cflags $extra_cflags
2089 add_asflags $extra_cflags
2090
2091 if test -n "$sysroot"; then
2092     case "$cc_type" in
2093         gcc|llvm_gcc|clang)
2094             add_cppflags --sysroot="$sysroot"
2095             add_ldflags --sysroot="$sysroot"
2096         ;;
2097         tms470)
2098             add_cppflags -I"$sysinclude"
2099             add_ldflags  --sysroot="$sysroot"
2100         ;;
2101     esac
2102 fi
2103
2104 if test "$cpu" = host; then
2105     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2106
2107     case "$cc_type" in
2108         gcc|llvm_gcc)
2109             check_native(){
2110                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2111                 sed -n "/$1=/{
2112                             s/.*$1=\\([^ ]*\\).*/\\1/
2113                             p
2114                             q
2115                         }" $TMPE
2116             }
2117             cpu=$(check_native -march || check_native -mcpu)
2118         ;;
2119     esac
2120
2121     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2122 fi
2123
2124 # Deal with common $arch aliases
2125 case "$arch" in
2126     arm*)
2127         arch="arm"
2128     ;;
2129     mips|mipsel|IP*)
2130         arch="mips"
2131     ;;
2132     mips64*)
2133         arch="mips"
2134         subarch="mips64"
2135     ;;
2136     parisc|hppa)
2137         arch="parisc"
2138     ;;
2139     parisc64|hppa64)
2140         arch="parisc"
2141         subarch="parisc64"
2142     ;;
2143     "Power Macintosh"|ppc|powerpc)
2144         arch="ppc"
2145     ;;
2146     ppc64|powerpc64)
2147         arch="ppc"
2148         subarch="ppc64"
2149     ;;
2150     s390|s390x)
2151         arch="s390"
2152     ;;
2153     sh4|sh)
2154         arch="sh4"
2155     ;;
2156     sun4u|sparc64)
2157         arch="sparc"
2158         subarch="sparc64"
2159     ;;
2160     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2161         arch="x86"
2162     ;;
2163 esac
2164
2165 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2166 enable $arch
2167
2168 # Add processor-specific flags
2169 if test "$cpu" = generic; then
2170     : do nothing
2171 elif enabled ppc; then
2172
2173     case $(tolower $cpu) in
2174         601|ppc601|powerpc601)
2175             cpuflags="-mcpu=601"
2176             disable altivec
2177         ;;
2178         603*|ppc603*|powerpc603*)
2179             cpuflags="-mcpu=603"
2180             disable altivec
2181         ;;
2182         604*|ppc604*|powerpc604*)
2183             cpuflags="-mcpu=604"
2184             disable altivec
2185         ;;
2186         g3|75*|ppc75*|powerpc75*)
2187             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2188             disable altivec
2189         ;;
2190         g4|745*|ppc745*|powerpc745*)
2191             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2192         ;;
2193         74*|ppc74*|powerpc74*)
2194             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2195         ;;
2196         g5|970|ppc970|powerpc970|power4*)
2197             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2198         ;;
2199         cell)
2200             cpuflags="-mcpu=cell"
2201             enable ldbrx
2202         ;;
2203         e500v2)
2204             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2205             disable altivec
2206         ;;
2207         e500)
2208             cpuflags="-mcpu=8540 -mhard-float"
2209             disable altivec
2210         ;;
2211     esac
2212
2213 elif enabled x86; then
2214
2215     case $cpu in
2216         i[345]86|pentium)
2217             cpuflags="-march=$cpu"
2218             disable mmx
2219         ;;
2220         # targets that do NOT support conditional mov (cmov)
2221         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2222             cpuflags="-march=$cpu"
2223             disable cmov
2224         ;;
2225         # targets that do support conditional mov (cmov)
2226         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2227             cpuflags="-march=$cpu"
2228             enable cmov
2229             enable fast_cmov
2230         ;;
2231         # targets that do support conditional mov but on which it's slow
2232         pentium4|pentium4m|prescott|nocona)
2233             cpuflags="-march=$cpu"
2234             enable cmov
2235             disable fast_cmov
2236         ;;
2237     esac
2238
2239 elif enabled sparc; then
2240
2241     case $cpu in
2242         niagara)
2243             cpuflags="-mcpu=$cpu"
2244             disable vis
2245         ;;
2246         sparc64)
2247             cpuflags="-mcpu=v9"
2248         ;;
2249     esac
2250
2251 elif enabled arm; then
2252
2253     case $cpu in
2254         armv*)
2255             cpuflags="-march=$cpu"
2256             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2257         ;;
2258         *)
2259             cpuflags="-mcpu=$cpu"
2260             case $cpu in
2261                 cortex-a*)                               subarch=armv7a  ;;
2262                 cortex-r*)                               subarch=armv7r  ;;
2263                 cortex-m*)                               subarch=armv7m  ;;
2264                 arm11*)                                  subarch=armv6   ;;
2265                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2266                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2267             esac
2268         ;;
2269     esac
2270
2271 elif enabled alpha; then
2272
2273     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2274
2275 elif enabled bfin; then
2276
2277     cpuflags="-mcpu=$cpu"
2278
2279 elif enabled mips; then
2280
2281     cpuflags="-march=$cpu"
2282
2283 elif enabled avr32; then
2284
2285     case $cpu in
2286         ap7[02]0[0-2])
2287             subarch="avr32_ap"
2288             cpuflags="-mpart=$cpu"
2289         ;;
2290         ap)
2291             subarch="avr32_ap"
2292             cpuflags="-march=$cpu"
2293         ;;
2294         uc3[ab]*)
2295             subarch="avr32_uc"
2296             cpuflags="-mcpu=$cpu"
2297         ;;
2298         uc)
2299             subarch="avr32_uc"
2300             cpuflags="-march=$cpu"
2301         ;;
2302     esac
2303
2304 fi
2305
2306 add_cflags $cpuflags
2307 add_asflags $cpuflags
2308
2309 # compiler sanity check
2310 check_exec <<EOF
2311 int main(void){ return 0; }
2312 EOF
2313 if test "$?" != 0; then
2314     echo "$cc is unable to create an executable file."
2315     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2316         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2317         echo "Only do this if you know what cross compiling means."
2318     fi
2319     die "C compiler test failed."
2320 fi
2321
2322 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2323 check_cflags -std=c99
2324 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2325 #include <stdlib.h>
2326 EOF
2327 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2328 #include <stdlib.h>
2329 EOF
2330
2331 check_host_cflags -std=c99
2332
2333 case "$arch" in
2334     alpha|ia64|mips|parisc|sparc)
2335         spic=$shared
2336     ;;
2337     x86)
2338         subarch="x86_32"
2339         check_cc <<EOF && subarch="x86_64"
2340         int test[(int)sizeof(char*) - 7];
2341 EOF
2342         if test "$subarch" = "x86_64"; then
2343             spic=$shared
2344         fi
2345     ;;
2346 esac
2347
2348 enable $subarch
2349 enabled spic && enable pic
2350
2351 # OS specific
2352 case $target_os in
2353     haiku)
2354         prefix_default="/boot/common"
2355         network_extralibs="-lnetwork"
2356         host_libs=
2357         ;;
2358     sunos)
2359         FFSERVERLDFLAGS=""
2360         SHFLAGS='-shared -Wl,-h,$$(@F)'
2361         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2362         network_extralibs="-lsocket -lnsl"
2363         add_cppflags -D__EXTENSIONS__
2364         nm_opts='-P -g'
2365         ;;
2366     netbsd)
2367         disable symver
2368         oss_indev_extralibs="-lossaudio"
2369         oss_outdev_extralibs="-lossaudio"
2370         add_cppflags -D_XOPEN_SOURCE=600
2371         ;;
2372     openbsd)
2373         enable malloc_aligned
2374         # On OpenBSD 4.5. the compiler does not use PIC unless
2375         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2376         # however the generated executable will not do anything
2377         # (simply quits with exit-code 1, no crash, no output).
2378         # Thus explicitly enable PIC here.
2379         enable pic
2380         disable symver
2381         SHFLAGS='-shared'
2382         oss_indev_extralibs="-lossaudio"
2383         oss_outdev_extralibs="-lossaudio"
2384         ;;
2385     dragonfly)
2386         enable malloc_aligned
2387         disable symver
2388         ;;
2389     freebsd)
2390         enable malloc_aligned
2391         ;;
2392     bsd/os)
2393         add_extralibs -lpoll -lgnugetopt
2394         ;;
2395     darwin)
2396         enable malloc_aligned
2397         gas="gas-preprocessor.pl $cc"
2398         enabled ppc && add_asflags -force_cpusubtype_ALL
2399         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2400         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2401         add_ldflags -Wl,-dynamic,-search_paths_first
2402         SLIBSUF=".dylib"
2403         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2404         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2405         FFSERVERLDFLAGS=-Wl,-bind_at_load
2406         objformat="macho"
2407         enabled x86_64 && objformat="macho64"
2408         enabled_any pic shared ||
2409             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2410         ;;
2411     mingw32*)
2412         if test $target_os = "mingw32ce"; then
2413             disable network
2414         else
2415             target_os=mingw32
2416         fi
2417         LIBTARGET=i386
2418         if enabled x86_64; then
2419             enable malloc_aligned
2420             LIBTARGET="i386:x86-64"
2421         elif enabled arm; then
2422             LIBTARGET=arm-wince
2423         fi
2424         shlibdir_default="$bindir_default"
2425         SLIBPREF=""
2426         SLIBSUF=".dll"
2427         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2428         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2429         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2430         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2431             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2432             install -d "$(LIBDIR)"; \
2433             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2434         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2435         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'
2436         objformat="win32"
2437         dlltool="${cross_prefix}dlltool"
2438         enable dos_paths
2439         check_cflags -fno-common
2440         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2441                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2442                 die "ERROR: MinGW runtime version must be >= 3.15."
2443         add_cppflags -U__STRICT_ANSI__
2444         ;;
2445     cygwin*)
2446         target_os=cygwin
2447         shlibdir_default="$bindir_default"
2448         SLIBPREF="cyg"
2449         SLIBSUF=".dll"
2450         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2451         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2452         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2453         objformat="win32"
2454         enable dos_paths
2455         check_cflags -fno-common
2456         ;;
2457     *-dos|freedos|opendos)
2458         network_extralibs="-lsocket"
2459         objformat="coff"
2460         enable dos_paths
2461         ;;
2462     linux)
2463         enable dv1394
2464         ;;
2465     irix*)
2466         target_os=irix
2467         ranlib="echo ignoring ranlib"
2468         ;;
2469     os/2*)
2470         ln_s="cp -f"
2471         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2472         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2473         FFSERVERLDFLAGS=""
2474         LIBSUF="_s.a"
2475         SLIBPREF=""
2476         SLIBSUF=".dll"
2477         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2478         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2479         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2480           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2481           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2482           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2483           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2484           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2485         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2486           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2487         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2488         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2489         enable dos_paths
2490         ;;
2491     gnu/kfreebsd)
2492         ;;
2493     gnu)
2494         ;;
2495     qnx)
2496         add_cppflags -D_QNX_SOURCE
2497         network_extralibs="-lsocket"
2498         ;;
2499     none)
2500         ;;
2501     *)
2502         die "Unknown OS '$target_os'."
2503         ;;
2504 esac
2505
2506 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2507
2508 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2509
2510 set_default $PATHS_LIST
2511
2512 # we need to build at least one lib type
2513 if ! enabled_any static shared; then
2514     cat <<EOF
2515 At least one library type must be built.
2516 Specify --enable-static to build the static libraries or --enable-shared to
2517 build the shared libraries as well. To only build the shared libraries specify
2518 --disable-static in addition to --enable-shared.
2519 EOF
2520     exit 1;
2521 fi
2522
2523 disabled static && LIBNAME=""
2524
2525 die_license_disabled() {
2526     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2527 }
2528
2529 die_license_disabled gpl libx264
2530 die_license_disabled gpl libxavs
2531 die_license_disabled gpl libxvid
2532 die_license_disabled gpl postproc
2533 die_license_disabled gpl x11grab
2534
2535 die_license_disabled nonfree libfaac
2536
2537 die_license_disabled version3 libopencore_amrnb
2538 die_license_disabled version3 libopencore_amrwb
2539
2540 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2541
2542 disabled optimizations || check_cflags -fomit-frame-pointer
2543
2544 enable_pic() {
2545     enable pic
2546     add_cppflags -DPIC
2547     add_cflags   -fPIC
2548     add_asflags  -fPIC
2549 }
2550
2551 enabled pic && enable_pic
2552
2553 check_cc <<EOF || die "Symbol mangling check failed."
2554 int ff_extern;
2555 EOF
2556 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2557 extern_prefix=${sym%%ff_extern*}
2558
2559 check_cc <<EOF && enable inline_asm
2560 void foo(void) { __asm__ volatile ("" ::); }
2561 EOF
2562
2563 _restrict=
2564 for restrict_keyword in restrict __restrict__ __restrict; do
2565     check_cc <<EOF && _restrict=$restrict_keyword && break
2566 void foo(char * $restrict_keyword p);
2567 EOF
2568 done
2569
2570 check_cc <<EOF && enable attribute_packed
2571 struct { int x; } __attribute__((packed)) x;
2572 EOF
2573
2574 check_cc <<EOF && enable attribute_may_alias
2575 union { int x; } __attribute__((may_alias)) x;
2576 EOF
2577
2578 check_cc <<EOF || die "endian test failed"
2579 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2580 EOF
2581 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2582
2583 if enabled alpha; then
2584
2585     check_cflags -mieee
2586
2587 elif enabled arm; then
2588
2589     check_cflags -marm
2590     nogas=die
2591
2592     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2593         enable vfp_args
2594     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2595         case "${cross_prefix:-$cc}" in
2596             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2597             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2598 __asm__ (".eabi_attribute 28, 1");
2599 int main(void) { return 0; }
2600 EOF
2601         esac
2602         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2603     fi
2604
2605     # We have to check if pld is a nop and disable it.
2606     check_asm pld '"pld [r0]"'
2607
2608     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2609     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2610     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2611     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2612     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2613     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2614
2615     enabled_all armv6t2 shared !pic && enable_pic
2616
2617 elif enabled mips; then
2618
2619     check_asm loongson '"dmult.g $1, $2, $3"'
2620     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2621
2622 elif enabled ppc; then
2623
2624     enable local_aligned_8 local_aligned_16
2625
2626     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2627     check_asm ibm_asm   '"add 0, 0, 0"'
2628     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2629     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2630
2631     # AltiVec flags: The FSF version of GCC differs from the Apple version
2632     if enabled altivec; then
2633         nogas=warn
2634         check_cflags -maltivec -mabi=altivec &&
2635         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2636         check_cflags -faltivec
2637
2638         # check if our compiler supports Motorola AltiVec C API
2639         check_cc <<EOF || disable altivec
2640 $inc_altivec_h
2641 int main(void) {
2642     vector signed int v1, v2, v3;
2643     v1 = vec_add(v2,v3);
2644     return 0;
2645 }
2646 EOF
2647
2648         # check if our compiler supports braces for vector declarations
2649         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2650 $inc_altivec_h
2651 int main (void) { (vector int) {1}; return 0; }
2652 EOF
2653     fi
2654
2655 elif enabled sparc; then
2656
2657     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2658         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2659
2660 elif enabled x86; then
2661
2662     enable local_aligned_8 local_aligned_16
2663
2664     # check whether EBP is available on x86
2665     # As 'i' is stored on the stack, this program will crash
2666     # if the base pointer is used to access it because the
2667     # base pointer is cleared in the inline assembly code.
2668     check_exec_crash <<EOF && enable ebp_available
2669     volatile int i=0;
2670     __asm__ volatile (
2671         "xorl %%ebp, %%ebp"
2672     ::: "%ebp");
2673     return i;
2674 EOF
2675
2676     # check whether EBX is available on x86
2677     check_asm ebx_available '""::"b"(0)' &&
2678         check_asm ebx_available '"":::"%ebx"'
2679
2680     # check whether xmm clobbers are supported
2681     check_asm xmm_clobbers '"":::"%xmm0"'
2682
2683     # check whether more than 10 operands are supported
2684     check_cc <<EOF && enable ten_operands
2685 int main(void) {
2686     int x=0;
2687     __asm__ volatile(
2688         ""
2689         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2690     );
2691     return 0;
2692 }
2693 EOF
2694
2695     # check whether binutils is new enough to compile SSSE3/MMX2
2696     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2697     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2698
2699     check_asm bswap '"bswap %%eax" ::: "%eax"'
2700
2701     if ! disabled_any asm mmx yasm; then
2702         if check_cmd $yasmexe --version; then
2703             enabled x86_64 && yasm_extra="-m amd64"
2704             yasm_debug="-g dwarf2"
2705         elif check_cmd nasm -v; then
2706             yasmexe=nasm
2707             yasm_debug="-g -F dwarf"
2708             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2709         fi
2710
2711         YASMFLAGS="-f $objformat $yasm_extra"
2712         enabled pic               && append YASMFLAGS "-DPIC"
2713         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2714         case "$objformat" in
2715             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2716         esac
2717
2718         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2719             die "yasm not found, use --disable-yasm for a crippled build"
2720         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2721     fi
2722
2723     case "$cpu" in
2724         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2725             disable fast_clz
2726         ;;
2727     esac
2728
2729 fi
2730
2731 if enabled asm; then
2732     as=${gas:=$as}
2733     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2734         $nogas "GNU assembler not found, install gas-preprocessor"
2735 fi
2736
2737 check_ldflags -Wl,--as-needed
2738
2739 if check_func dlopen; then
2740     ldl=
2741 elif check_func dlopen -ldl; then
2742     ldl=-ldl
2743 fi
2744
2745 if enabled network; then
2746     check_type "sys/types.h sys/socket.h" socklen_t
2747     check_type netdb.h "struct addrinfo"
2748     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2749     check_type netinet/in.h "struct sockaddr_in6"
2750     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2751     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2752     # Prefer arpa/inet.h over winsock2
2753     if check_header arpa/inet.h ; then
2754         check_func closesocket
2755     elif check_header winsock2.h ; then
2756         check_func_headers winsock2.h closesocket -lws2 && \
2757             network_extralibs="-lws2" || \
2758         { check_func_headers winsock2.h closesocket -lws2_32 && \
2759             network_extralibs="-lws2_32"; }
2760         check_type ws2tcpip.h socklen_t
2761         check_type ws2tcpip.h "struct addrinfo"
2762         check_type ws2tcpip.h "struct ipv6_mreq"
2763         check_type ws2tcpip.h "struct sockaddr_in6"
2764         check_type ws2tcpip.h "struct sockaddr_storage"
2765         check_struct winsock2.h "struct sockaddr" sa_len
2766     else
2767         disable network
2768     fi
2769 fi
2770
2771 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2772 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2773
2774 check_func  fcntl
2775 check_func  fork
2776 check_func  getaddrinfo $network_extralibs
2777 check_func  gethrtime
2778 check_func  getrusage
2779 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2780 check_func  inet_aton $network_extralibs
2781 check_func  isatty
2782 check_func  localtime_r
2783 check_func  ${malloc_prefix}memalign            && enable memalign
2784 check_func  mkstemp
2785 check_func  mmap
2786 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2787 check_func  setrlimit
2788 check_func  strerror_r
2789 check_func  strtok_r
2790 check_func_headers conio.h kbhit
2791 check_func_headers io.h setmode
2792 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2793 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2794 check_func_headers windows.h GetProcessTimes
2795 check_func_headers windows.h MapViewOfFile
2796 check_func_headers windows.h VirtualAlloc
2797
2798 check_header dlfcn.h
2799 check_header dxva2api.h
2800 check_header libcrystalhd/libcrystalhd_if.h
2801 check_header malloc.h
2802 check_header poll.h
2803 check_header sys/mman.h
2804 check_header sys/resource.h
2805 check_header sys/select.h
2806 check_header vdpau/vdpau.h
2807 check_header vdpau/vdpau_x11.h
2808 check_header X11/extensions/XvMClib.h
2809
2810 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2811
2812 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2813      enabled_any $need_memalign ; then
2814     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2815 fi
2816
2817 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2818 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2819
2820 # check for some common methods of building with pthread support
2821 # do this before the optional library checks as some of them require pthreads
2822 if ! disabled pthreads && ! enabled w32threads; then
2823     enable pthreads
2824     if check_func pthread_create; then
2825         :
2826     elif check_func pthread_create -pthread; then
2827         add_cflags -pthread
2828         add_extralibs -pthread
2829     elif check_func pthread_create -pthreads; then
2830         add_cflags -pthreads
2831         add_extralibs -pthreads
2832     elif check_func pthread_create -lpthreadGC2; then
2833         add_extralibs -lpthreadGC2
2834     elif ! check_lib pthread.h pthread_create -lpthread; then
2835         disable pthreads
2836     fi
2837 fi
2838
2839 for thread in $THREADS_LIST; do
2840     if enabled $thread; then
2841         test -n "$thread_type" &&
2842             die "ERROR: Only one thread type must be selected." ||
2843             thread_type="$thread"
2844     fi
2845 done
2846
2847 check_lib math.h sin -lm
2848 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2849
2850 check_mathfunc exp2
2851 check_mathfunc exp2f
2852 check_mathfunc llrint
2853 check_mathfunc llrintf
2854 check_mathfunc log2
2855 check_mathfunc log2f
2856 check_mathfunc lrint
2857 check_mathfunc lrintf
2858 check_mathfunc round
2859 check_mathfunc roundf
2860 check_mathfunc truncf
2861
2862 # these are off by default, so fail if requested and not available
2863 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2864 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2865 enabled libdirac   && require_pkg_config dirac                          \
2866     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2867     "dirac_decoder_init dirac_encoder_init"
2868 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2869 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2870 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2871 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2872 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2873 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2874 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2875 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2876 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2877 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2878 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2879 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2880 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2881 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2882 enabled libvpx     && {
2883     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2884                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2885     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2886                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2887 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2888                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2889                         die "ERROR: libx264 version must be >= 0.99."; }
2890 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2891 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2892 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2893
2894 # libdc1394 check
2895 if enabled libdc1394; then
2896     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2897         enable libdc1394_2; } ||
2898     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2899         enable libdc1394_1; } ||
2900     die "ERROR: No version of libdc1394 found "
2901 fi
2902
2903 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2904     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2905     enable sdl &&
2906     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2907 fi
2908
2909 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2910
2911 check_header linux/fb.h
2912 check_header linux/videodev.h
2913 check_header linux/videodev2.h
2914 check_header sys/videoio.h
2915
2916 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2917 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2918 # w32api 3.12 had it defined wrong
2919 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2920
2921 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2922 { check_header dev/bktr/ioctl_meteor.h &&
2923   check_header dev/bktr/ioctl_bt848.h; } ||
2924 { check_header machine/ioctl_meteor.h &&
2925   check_header machine/ioctl_bt848.h; } ||
2926 { check_header dev/video/meteor/ioctl_meteor.h &&
2927   check_header dev/video/bktr/ioctl_bt848.h; } ||
2928 check_header dev/ic/bt8xx.h
2929
2930 check_header sndio.h
2931 check_header sys/soundcard.h
2932 check_header soundcard.h
2933
2934 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2935
2936 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2937
2938 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2939
2940 enabled x11grab                         &&
2941 check_header X11/Xlib.h                 &&
2942 check_header X11/extensions/XShm.h      &&
2943 check_header X11/extensions/Xfixes.h    &&
2944 check_func XOpenDisplay -lX11           &&
2945 check_func XShmCreateImage -lX11 -lXext &&
2946 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2947
2948 if ! disabled vaapi; then
2949     check_lib va/va.h vaInitialize -lva && {
2950         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2951         { echolog "Please upgrade to VA-API >= 0.32 if you would like VA-API support." &&
2952           disable vaapi; }
2953     } || disable vaapi
2954 fi
2955
2956 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2957 check_cpp_condition \
2958     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2959     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2960       disable vdpau; }
2961 fi
2962
2963 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2964
2965 # add some useful compiler flags if supported
2966 check_cflags -Wdeclaration-after-statement
2967 check_cflags -Wall
2968 check_cflags -Wno-parentheses
2969 check_cflags -Wno-switch
2970 check_cflags -Wdisabled-optimization
2971 check_cflags -Wpointer-arith
2972 check_cflags -Wredundant-decls
2973 check_cflags -Wno-pointer-sign
2974 check_cflags -Wcast-qual
2975 check_cflags -Wwrite-strings
2976 check_cflags -Wtype-limits
2977 check_cflags -Wundef
2978 check_cflags -Wmissing-prototypes
2979 enabled extra_warnings && check_cflags -Winline
2980
2981 # add some linker flags
2982 check_ldflags -Wl,--warn-common
2983 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'
2984 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2985
2986 echo "X{};" > $TMPV
2987 if test_ldflags -Wl,--version-script,$TMPV; then
2988     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2989     check_cc <<EOF && enable symver_asm_label
2990 void ff_foo(void) __asm__ ("av_foo@VERSION");
2991 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2992 EOF
2993     check_cc <<EOF && enable symver_gnu_asm
2994 __asm__(".symver ff_foo,av_foo@VERSION");
2995 void ff_foo(void) {}
2996 EOF
2997 fi
2998
2999 if enabled small; then
3000     add_cflags $size_cflags
3001     optimizations="small"
3002 elif enabled optimizations; then
3003     add_cflags $speed_cflags
3004 else
3005     add_cflags $noopt_cflags
3006 fi
3007 check_cflags -fno-math-errno
3008 check_cflags -fno-signed-zeros
3009
3010 if enabled icc; then
3011     # Just warnings, no remarks
3012     check_cflags -w1
3013     # -wd: Disable following warnings
3014     # 144, 167, 556: -Wno-pointer-sign
3015     # 1292: attribute "foo" ignored
3016     # 10006: ignoring unknown option -fno-signed-zeros
3017     # 10148: ignoring unknown option -Wno-parentheses
3018     # 10156: ignoring option '-W'; no argument required
3019     check_cflags -wd144,167,556,1292,10006,10148,10156
3020     # 11030: Warning unknown option --as-needed
3021     # 10156: ignoring option '-export'; no argument required
3022     check_ldflags -wd10156,11030
3023     # Allow to compile with optimizations
3024     check_ldflags -march=$cpu
3025     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3026     enable ebp_available
3027     if enabled x86_32; then
3028         test ${icc_version%%.*} -ge 11 && \
3029             check_cflags -falign-stack=maintain-16-byte || \
3030             disable aligned_stack
3031     fi
3032 elif enabled ccc; then
3033     # disable some annoying warnings
3034     add_cflags -msg_disable cvtu32to64
3035     add_cflags -msg_disable embedcomment
3036     add_cflags -msg_disable needconstext
3037     add_cflags -msg_disable nomainieee
3038     add_cflags -msg_disable ptrmismatch1
3039     add_cflags -msg_disable unreachcode
3040 elif enabled gcc; then
3041     check_cflags -fno-tree-vectorize
3042     check_cflags -Werror=implicit-function-declaration
3043     check_cflags -Werror=missing-prototypes
3044 elif enabled llvm_gcc; then
3045     check_cflags -mllvm -stack-alignment=16
3046 elif enabled clang; then
3047     check_cflags -mllvm -stack-alignment=16
3048     check_cflags -Qunused-arguments
3049 elif enabled armcc; then
3050     # 2523: use of inline assembler is deprecated
3051     add_cflags -W${armcc_opt},--diag_suppress=2523
3052     add_cflags -W${armcc_opt},--diag_suppress=1207
3053     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3054     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3055 elif enabled tms470; then
3056     add_cflags -pds=824 -pds=837
3057 elif enabled pathscale; then
3058     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3059 fi
3060
3061 enabled_any $THREADS_LIST      && enable threads
3062
3063 check_deps $CONFIG_LIST       \
3064            $CONFIG_EXTRA      \
3065            $HAVE_LIST         \
3066            $DECODER_LIST      \
3067            $ENCODER_LIST      \
3068            $HWACCEL_LIST      \
3069            $PARSER_LIST       \
3070            $BSF_LIST          \
3071            $DEMUXER_LIST      \
3072            $MUXER_LIST        \
3073            $FILTER_LIST       \
3074            $INDEV_LIST        \
3075            $OUTDEV_LIST       \
3076            $PROTOCOL_LIST     \
3077            $ACODEC_TESTS      \
3078            $VCODEC_TESTS      \
3079            $LAVF_TESTS        \
3080            $LAVFI_TESTS       \
3081            $SEEK_TESTS        \
3082
3083 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3084
3085 echo "install prefix            $prefix"
3086 echo "source path               $source_path"
3087 echo "C compiler                $cc"
3088 echo "ARCH                      $arch ($cpu)"
3089 if test "$build_suffix" != ""; then
3090     echo "build suffix              $build_suffix"
3091 fi
3092 if test "$extra_version" != ""; then
3093     echo "version string suffix     $extra_version"
3094 fi
3095 echo "big-endian                ${bigendian-no}"
3096 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3097 if enabled x86; then
3098     echo "yasm                      ${yasm-no}"
3099     echo "MMX enabled               ${mmx-no}"
3100     echo "MMX2 enabled              ${mmx2-no}"
3101     echo "3DNow! enabled            ${amd3dnow-no}"
3102     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3103     echo "SSE enabled               ${sse-no}"
3104     echo "SSSE3 enabled             ${ssse3-no}"
3105     echo "CMOV enabled              ${cmov-no}"
3106     echo "CMOV is fast              ${fast_cmov-no}"
3107     echo "EBX available             ${ebx_available-no}"
3108     echo "EBP available             ${ebp_available-no}"
3109     echo "10 operands supported     ${ten_operands-no}"
3110 fi
3111 if enabled arm; then
3112     echo "ARMv5TE enabled           ${armv5te-no}"
3113     echo "ARMv6 enabled             ${armv6-no}"
3114     echo "ARMv6T2 enabled           ${armv6t2-no}"
3115     echo "ARM VFP enabled           ${armvfp-no}"
3116     echo "IWMMXT enabled            ${iwmmxt-no}"
3117     echo "NEON enabled              ${neon-no}"
3118 fi
3119 if enabled mips; then
3120     echo "MMI enabled               ${mmi-no}"
3121 fi
3122 if enabled ppc; then
3123     echo "AltiVec enabled           ${altivec-no}"
3124     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3125     echo "dcbzl available           ${dcbzl-no}"
3126 fi
3127 if enabled sparc; then
3128     echo "VIS enabled               ${vis-no}"
3129 fi
3130 echo "debug symbols             ${debug-no}"
3131 echo "optimizations             ${optimizations-no}"
3132 echo "static                    ${static-no}"
3133 echo "shared                    ${shared-no}"
3134 echo "postprocessing support    ${postproc-no}"
3135 echo "new filter support        ${avfilter-no}"
3136 echo "network support           ${network-no}"
3137 echo "threading support         ${thread_type-no}"
3138 echo "SDL support               ${sdl-no}"
3139 echo "Sun medialib support      ${mlib-no}"
3140 echo "AVISynth enabled          ${avisynth-no}"
3141 echo "frei0r enabled            ${frei0r-no}"
3142 echo "libdc1394 support         ${libdc1394-no}"
3143 echo "libdirac enabled          ${libdirac-no}"
3144 echo "libfaac enabled           ${libfaac-no}"
3145 echo "libgsm enabled            ${libgsm-no}"
3146 echo "libmp3lame enabled        ${libmp3lame-no}"
3147 echo "libnut enabled            ${libnut-no}"
3148 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3149 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3150 echo "libopencv support         ${libopencv-no}"
3151 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3152 echo "librtmp enabled           ${librtmp-no}"
3153 echo "libschroedinger enabled   ${libschroedinger-no}"
3154 echo "libspeex enabled          ${libspeex-no}"
3155 echo "libtheora enabled         ${libtheora-no}"
3156 echo "libvorbis enabled         ${libvorbis-no}"
3157 echo "libvpx enabled            ${libvpx-no}"
3158 echo "libx264 enabled           ${libx264-no}"
3159 echo "libxavs enabled           ${libxavs-no}"
3160 echo "libxvid enabled           ${libxvid-no}"
3161 echo "zlib enabled              ${zlib-no}"
3162 echo "bzlib enabled             ${bzlib-no}"
3163 echo
3164
3165 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3166     echo "Enabled ${type}s:"
3167     eval list=\$$(toupper $type)_LIST
3168     print_enabled '_*' $list | sort | pr -r -3 -t
3169     echo
3170 done
3171
3172 license="LGPL version 2.1 or later"
3173 if enabled nonfree; then
3174     license="nonfree and unredistributable"
3175 elif enabled gplv3; then
3176     license="GPL version 3 or later"
3177 elif enabled lgplv3; then
3178     license="LGPL version 3 or later"
3179 elif enabled gpl; then
3180     license="GPL version 2 or later"
3181 fi
3182
3183 echo "License: $license"
3184
3185 echo "Creating config.mak and config.h..."
3186
3187 # build tree in object directory if source path is different from current one
3188 if enabled source_path_used; then
3189     DIRS="
3190         doc
3191         libavcodec
3192         libavcodec/$arch
3193         libavdevice
3194         libavfilter
3195         libavfilter/$arch
3196         libavfilter/libmpcodecs
3197         libavfilter/libmpcodecs/libvo
3198         libavformat
3199         libavutil
3200         libavutil/$arch
3201         libpostproc
3202         libswscale
3203         libswscale/$arch
3204         tests
3205         tools
3206     "
3207     FILES="
3208         Makefile
3209         common.mak
3210         subdir.mak
3211         doc/texi2pod.pl
3212         libavcodec/Makefile
3213         libavcodec/${arch}/Makefile
3214         libavdevice/Makefile
3215         libavfilter/Makefile
3216         libavfilter/${arch}/Makefile
3217         libavformat/Makefile
3218         libavutil/Makefile
3219         libpostproc/Makefile
3220         libswscale/Makefile
3221     "
3222     map 'mkdir -p $v' $DIRS;
3223     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3224 fi
3225
3226 config_files="$TMPH config.mak"
3227
3228 cat > config.mak <<EOF
3229 # Automatically generated by configure - do not modify!
3230 ifndef FFMPEG_CONFIG_MAK
3231 FFMPEG_CONFIG_MAK=1
3232 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3233 prefix=$prefix
3234 LIBDIR=\$(DESTDIR)$libdir
3235 SHLIBDIR=\$(DESTDIR)$shlibdir
3236 INCDIR=\$(DESTDIR)$incdir
3237 BINDIR=\$(DESTDIR)$bindir
3238 DATADIR=\$(DESTDIR)$datadir
3239 MANDIR=\$(DESTDIR)$mandir
3240 SRC_PATH="$source_path"
3241 SRC_PATH_BARE=$source_path
3242 BUILD_ROOT="$PWD"
3243 CC_IDENT=$cc_ident
3244 ARCH=$arch
3245 CC=$cc
3246 AS=$as
3247 LD=$ld
3248 DEPCC=$dep_cc
3249 YASM=$yasmexe
3250 YASMDEP=$yasmexe
3251 AR=$ar
3252 RANLIB=$ranlib
3253 LN_S=$ln_s
3254 CPPFLAGS=$CPPFLAGS
3255 CFLAGS=$CFLAGS
3256 ASFLAGS=$ASFLAGS
3257 CC_O=$CC_O
3258 DLLTOOL=$dlltool
3259 LDFLAGS=$LDFLAGS
3260 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3261 SHFLAGS=$SHFLAGS
3262 YASMFLAGS=$YASMFLAGS
3263 BUILDSUF=$build_suffix
3264 FULLNAME=$FULLNAME
3265 LIBPREF=$LIBPREF
3266 LIBSUF=$LIBSUF
3267 LIBNAME=$LIBNAME
3268 SLIBPREF=$SLIBPREF
3269 SLIBSUF=$SLIBSUF
3270 EXESUF=$EXESUF
3271 EXTRA_VERSION=$extra_version
3272 DEPFLAGS=$DEPFLAGS
3273 CCDEP=$CCDEP
3274 ASDEP=$ASDEP
3275 CC_DEPFLAGS=$CC_DEPFLAGS
3276 AS_DEPFLAGS=$AS_DEPFLAGS
3277 HOSTCC=$host_cc
3278 HOSTCFLAGS=$host_cflags
3279 HOSTEXESUF=$HOSTEXESUF
3280 HOSTLDFLAGS=$host_ldflags
3281 HOSTLIBS=$host_libs
3282 TARGET_EXEC=$target_exec
3283 TARGET_PATH=$target_path
3284 SDL_LIBS=$sdl_libs
3285 SDL_CFLAGS=$sdl_cflags
3286 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3287 EXTRALIBS=$extralibs
3288 INSTALL=install
3289 LIBTARGET=${LIBTARGET}
3290 SLIBNAME=${SLIBNAME}
3291 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3292 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3293 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3294 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3295 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3296 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3297 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3298 EOF
3299
3300 get_version(){
3301     name=$1
3302     file=$source_path/$2
3303     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3304     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3305     lcname=$(tolower $name)
3306     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3307     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3308 }
3309
3310 get_version LIBSWSCALE  libswscale/swscale.h
3311 get_version LIBPOSTPROC libpostproc/postprocess.h
3312 get_version LIBAVCODEC  libavcodec/version.h
3313 get_version LIBAVDEVICE libavdevice/avdevice.h
3314 get_version LIBAVFORMAT libavformat/version.h
3315 get_version LIBAVUTIL   libavutil/avutil.h
3316 get_version LIBAVFILTER libavfilter/avfilter.h
3317
3318 cat > $TMPH <<EOF
3319 /* Automatically generated by configure - do not modify! */
3320 #ifndef FFMPEG_CONFIG_H
3321 #define FFMPEG_CONFIG_H
3322 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3323 #define FFMPEG_LICENSE "$(c_escape $license)"
3324 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3325 #define CC_TYPE "$cc_type"
3326 #define CC_VERSION $cc_version
3327 #define restrict $_restrict
3328 #define EXTERN_PREFIX "${extern_prefix}"
3329 #define EXTERN_ASM ${extern_prefix}
3330 #define SLIBSUF "$SLIBSUF"
3331 EOF
3332
3333 test -n "$malloc_prefix" &&
3334     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3335
3336 if enabled small || disabled optimizations; then
3337     echo "#undef  av_always_inline"  >> $TMPH
3338     if enabled small; then
3339         echo "#define av_always_inline inline"  >> $TMPH
3340     else
3341         echo "#define av_always_inline av_unused"  >> $TMPH
3342     fi
3343 fi
3344
3345 if enabled yasm; then
3346     append config_files $TMPASM
3347     printf '' >$TMPASM
3348 fi
3349
3350 print_config ARCH_   "$config_files" $ARCH_LIST
3351 print_config HAVE_   "$config_files" $HAVE_LIST
3352 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3353                                      $CONFIG_EXTRA      \
3354                                      $DECODER_LIST      \
3355                                      $ENCODER_LIST      \
3356                                      $HWACCEL_LIST      \
3357                                      $PARSER_LIST       \
3358                                      $BSF_LIST          \
3359                                      $DEMUXER_LIST      \
3360                                      $MUXER_LIST        \
3361                                      $FILTER_LIST       \
3362                                      $PROTOCOL_LIST     \
3363                                      $INDEV_LIST        \
3364                                      $OUTDEV_LIST       \
3365
3366 cat >>config.mak <<EOF
3367 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3368 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3369 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3370 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3371 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3372 EOF
3373
3374 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3375 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3376
3377 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3378 cp_if_changed $TMPH config.h
3379 touch .config
3380
3381 enabled yasm && cp_if_changed $TMPASM config.asm
3382
3383 cat > $TMPH <<EOF
3384 /* Generated by ffconf */
3385 #ifndef AVUTIL_AVCONFIG_H
3386 #define AVUTIL_AVCONFIG_H
3387 EOF
3388
3389 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3390
3391 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3392
3393 cp_if_changed $TMPH libavutil/avconfig.h
3394
3395 test -n "$WARNINGS" && printf "\n$WARNINGS"
3396
3397 # build pkg-config files
3398
3399 pkgconfig_generate(){
3400 name=$1
3401 shortname=${name#lib}${build_suffix}
3402 comment=$2
3403 version=$3
3404 libs=$4
3405 requires=$5
3406 enabled ${name#lib} || return 0
3407 cat <<EOF > $name/$name.pc
3408 prefix=$prefix
3409 exec_prefix=\${prefix}
3410 libdir=$libdir
3411 includedir=$incdir
3412
3413 Name: $name
3414 Description: $comment
3415 Version: $version
3416 Requires: $(enabled shared || echo $requires)
3417 Requires.private: $(enabled shared && echo $requires)
3418 Conflicts:
3419 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3420 Libs.private: $(enabled shared && echo $libs)
3421 Cflags: -I\${includedir}
3422 EOF
3423 cat <<EOF > $name/$name-uninstalled.pc
3424 prefix=
3425 exec_prefix=
3426 libdir=\${pcfiledir}
3427 includedir=${source_path}
3428
3429 Name: $name
3430 Description: $comment
3431 Version: $version
3432 Requires: $requires
3433 Conflicts:
3434 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3435 Cflags: -I\${includedir}
3436 EOF
3437 }
3438
3439 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3440 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3441 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3442 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3443 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3444 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3445 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"