df7cce79df292a994584189235828f85ca84d32a
[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   --disable-stripping      disable stripping of executables and shared libraries
247   --samples=PATH           location of test samples for FATE, if not set use
248                            \$FATE_SAMPLES at make invocation time.
249
250 NOTE: Object files are built at the place where configure is launched.
251 EOF
252   exit 0
253 }
254
255 quotes='""'
256
257 log(){
258     echo "$@" >> $logfile
259 }
260
261 log_file(){
262     log BEGIN $1
263     pr -n -t $1 >> $logfile
264     log END $1
265 }
266
267 echolog(){
268     log "$@"
269     echo "$@"
270 }
271
272 warn(){
273     log "WARNING: $*"
274     WARNINGS="${WARNINGS}WARNING: $*\n"
275 }
276
277 die(){
278     echolog "$@"
279     cat <<EOF
280
281 If you think configure made a mistake, make sure you are using the latest
282 version from Git.  If the latest version fails, report the problem to the
283 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
284 EOF
285     if disabled logging; then
286         cat <<EOF
287 Rerun configure with logging enabled (do not use --disable-logging), and
288 include the log this produces with your report.
289 EOF
290     else
291 cat <<EOF
292 Include the log file "$logfile" produced by configure as this will help
293 solving the problem.
294 EOF
295     fi
296     exit 1
297 }
298
299 # Avoid locale weirdness, besides we really just want to translate ASCII.
300 toupper(){
301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
302 }
303
304 tolower(){
305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
306 }
307
308 c_escape(){
309     echo "$*" | sed 's/["\\]/\\\0/g'
310 }
311
312 sh_quote(){
313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
315     echo "$v"
316 }
317
318 cleanws(){
319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
320 }
321
322 filter(){
323     pat=$1
324     shift
325     for v; do
326         eval "case $v in $pat) echo $v ;; esac"
327     done
328 }
329
330 filter_out(){
331     pat=$1
332     shift
333     for v; do
334         eval "case $v in $pat) ;; *) echo $v ;; esac"
335     done
336 }
337
338 map(){
339     m=$1
340     shift
341     for v; do eval $m; done
342 }
343
344 set_all(){
345     value=$1
346     shift
347     for var in $*; do
348         eval $var=$value
349     done
350 }
351
352 set_weak(){
353     value=$1
354     shift
355     for var; do
356         eval : \${$var:=$value}
357     done
358 }
359
360 set_safe(){
361     var=$1
362     shift
363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
364 }
365
366 get_safe(){
367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
368 }
369
370 pushvar(){
371     for var in $*; do
372         eval level=\${${var}_level:=0}
373         eval ${var}_${level}="\$$var"
374         eval ${var}_level=$(($level+1))
375     done
376 }
377
378 popvar(){
379     for var in $*; do
380         eval level=\${${var}_level:-0}
381         test $level = 0 && continue
382         eval level=$(($level-1))
383         eval $var="\${${var}_${level}}"
384         eval ${var}_level=$level
385         eval unset ${var}_${level}
386     done
387 }
388
389 enable(){
390     set_all yes $*
391 }
392
393 disable(){
394     set_all no $*
395 }
396
397 enable_weak(){
398     set_weak yes $*
399 }
400
401 disable_weak(){
402     set_weak no $*
403 }
404
405 enable_safe(){
406     for var; do
407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
408     done
409 }
410
411 disable_safe(){
412     for var; do
413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
414     done
415 }
416
417 do_enable_deep(){
418     for var; do
419         enabled $var && continue
420         eval sel="\$${var}_select"
421         eval sgs="\$${var}_suggest"
422         pushvar var sgs
423         enable_deep $sel
424         popvar sgs
425         enable_deep_weak $sgs
426         popvar var
427     done
428 }
429
430 enable_deep(){
431     do_enable_deep $*
432     enable $*
433 }
434
435 enable_deep_weak(){
436     do_enable_deep $*
437     enable_weak $*
438 }
439
440 enabled(){
441     test "${1#!}" = "$1" && op== || op=!=
442     eval test "x\$${1#!}" $op "xyes"
443 }
444
445 disabled(){
446     test "${1#!}" = "$1" && op== || op=!=
447     eval test "x\$${1#!}" $op "xno"
448 }
449
450 enabled_all(){
451     for opt; do
452         enabled $opt || return 1
453     done
454 }
455
456 disabled_all(){
457     for opt; do
458         disabled $opt || return 1
459     done
460 }
461
462 enabled_any(){
463     for opt; do
464         enabled $opt && return 0
465     done
466 }
467
468 disabled_any(){
469     for opt; do
470         disabled $opt && return 0
471     done
472     return 1
473 }
474
475 set_default(){
476     for opt; do
477         eval : \${$opt:=\$${opt}_default}
478     done
479 }
480
481 is_in(){
482     value=$1
483     shift
484     for var in $*; do
485         [ $var = $value ] && return 0
486     done
487     return 1
488 }
489
490 check_deps(){
491     for cfg; do
492         cfg="${cfg#!}"
493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
494         disabled ${cfg}_checking && continue
495         enable ${cfg}_checking
496
497         eval dep_all="\$${cfg}_deps"
498         eval dep_any="\$${cfg}_deps_any"
499         eval dep_sel="\$${cfg}_select"
500         eval dep_sgs="\$${cfg}_suggest"
501         eval dep_ifa="\$${cfg}_if"
502         eval dep_ifn="\$${cfg}_if_any"
503
504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
507
508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
510         enabled_all  $dep_all || disable $cfg
511         enabled_any  $dep_any || disable $cfg
512         disabled_any $dep_sel && disable $cfg
513
514         if enabled $cfg; then
515             eval dep_extralibs="\$${cfg}_extralibs"
516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
517             enable_deep $dep_sel
518             enable_deep_weak $dep_sgs
519         fi
520
521         disable ${cfg}_checking
522     done
523 }
524
525 print_config_h(){
526     enabled $1 && v=1 || v=0
527     echo "#define $2 $v"
528 }
529
530 print_config_mak(){
531     enabled $1 && v= || v=!
532     echo "$v$2=yes"
533 }
534
535 print_config_asm(){
536     enabled $1 && echo "%define $2"
537 }
538
539 print_config(){
540     pfx=$1
541     files=$2
542     shift 2
543     for cfg; do
544         ucname="$(toupper $cfg)"
545         for f in $files; do
546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
547         done
548     done
549 }
550
551 print_enabled(){
552     test "$1" = -n && end=" " && shift || end="\n"
553     suf=$1
554     shift
555     for v; do
556         enabled $v && printf "%s$end" ${v%$suf};
557     done
558 }
559
560 append(){
561     var=$1
562     shift
563     eval "$var=\"\$$var $*\""
564 }
565
566 prepend(){
567     var=$1
568     shift
569     eval "$var=\"$* \$$var\""
570 }
571
572 add_cppflags(){
573     append CPPFLAGS $($filter_cppflags "$@")
574 }
575
576 add_cflags(){
577     append CFLAGS $($filter_cflags "$@")
578 }
579
580 add_asflags(){
581     append ASFLAGS $($filter_asflags "$@")
582 }
583
584 add_ldflags(){
585     append LDFLAGS "$@"
586 }
587
588 add_extralibs(){
589     prepend extralibs "$@"
590 }
591
592 check_cmd(){
593     log "$@"
594     "$@" >> $logfile 2>&1
595 }
596
597 check_cc(){
598     log check_cc "$@"
599     cat > $TMPC
600     log_file $TMPC
601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
602 }
603
604 check_cpp(){
605     log check_cpp "$@"
606     cat > $TMPC
607     log_file $TMPC
608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
609 }
610
611 check_as(){
612     log check_as "$@"
613     cat > $TMPC
614     log_file $TMPC
615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
616 }
617
618 check_asm(){
619     log check_asm "$@"
620     name="$1"
621     code="$2"
622     shift 2
623     disable $name
624     check_as "$@" <<EOF && enable $name
625 void foo(void){ __asm__ volatile($code); }
626 EOF
627 }
628
629 check_yasm(){
630     log check_yasm "$@"
631     echo "$1" > $TMPS
632     log_file $TMPS
633     shift 1
634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
635 }
636
637 check_ld(){
638     log check_ld "$@"
639     flags=''
640     libs=''
641     for f; do
642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
643     done
644     check_cc $($filter_cflags $flags) || return
645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
646 }
647
648 check_cppflags(){
649     log check_cppflags "$@"
650     set -- $($filter_cppflags "$@")
651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
652 int x;
653 EOF
654 }
655
656 check_cflags(){
657     log check_cflags "$@"
658     set -- $($filter_cflags "$@")
659     check_cc "$@" <<EOF && append CFLAGS "$@"
660 int x;
661 EOF
662 }
663
664 test_ldflags(){
665     log test_ldflags "$@"
666     check_ld "$@" <<EOF
667 int main(void){ return 0; }
668 EOF
669 }
670
671 check_ldflags(){
672     log check_ldflags "$@"
673     test_ldflags "$@" && add_ldflags "$@"
674 }
675
676 check_header(){
677     log check_header "$@"
678     header=$1
679     shift
680     disable_safe $header
681     check_cpp "$@" <<EOF && enable_safe $header
682 #include <$header>
683 int x;
684 EOF
685 }
686
687 check_func(){
688     log check_func "$@"
689     func=$1
690     shift
691     disable $func
692     check_ld "$@" <<EOF && enable $func
693 extern int $func();
694 int main(void){ $func(); }
695 EOF
696 }
697
698 check_mathfunc(){
699     log check_mathfunc "$@"
700     func=$1
701     shift
702     disable $func
703     check_ld "$@" <<EOF && enable $func
704 #include <math.h>
705 float foo(float f) { return $func(f); }
706 int main(void){ return 0; }
707 EOF
708 }
709
710 check_func_headers(){
711     log check_func_headers "$@"
712     headers=$1
713     funcs=$2
714     shift 2
715     {
716         for hdr in $headers; do
717             echo "#include <$hdr>"
718         done
719         for func in $funcs; do
720             echo "long check_$func(void) { return (long) $func; }"
721         done
722         echo "int main(void) { return 0; }"
723     } | check_ld "$@" && enable $funcs && enable_safe $headers
724 }
725
726 check_cpp_condition(){
727     log check_cpp_condition "$@"
728     header=$1
729     condition=$2
730     shift 2
731     check_cpp $($filter_cppflags "$@") <<EOF
732 #include <$header>
733 #if !($condition)
734 #error "unsatisfied condition: $condition"
735 #endif
736 EOF
737 }
738
739 check_lib(){
740     log check_lib "$@"
741     header="$1"
742     func="$2"
743     shift 2
744     check_header $header && check_func $func "$@" && add_extralibs "$@"
745 }
746
747 check_lib2(){
748     log check_lib2 "$@"
749     headers="$1"
750     funcs="$2"
751     shift 2
752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
753 }
754
755 check_pkg_config(){
756     log check_pkg_config "$@"
757     pkg="$1"
758     headers="$2"
759     funcs="$3"
760     shift 3
761     $pkg_config --exists $pkg || return
762     pkg_cflags=$($pkg_config --cflags $pkg)
763     pkg_libs=$($pkg_config --libs $pkg)
764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
765         set_safe ${pkg}_cflags $pkg_cflags   &&
766         set_safe ${pkg}_libs   $pkg_libs
767 }
768
769 check_exec(){
770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
771 }
772
773 check_exec_crash(){
774     code=$(cat)
775
776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
777     # are safe but may not be available everywhere.  Thus we use
778     # raise(SIGTERM) instead.  The check is run in a subshell so we
779     # can redirect the "Terminated" message from the shell.  SIGBUS
780     # is not defined by standard C so it is used conditionally.
781
782     (check_exec "$@") >> $logfile 2>&1 <<EOF
783 #include <signal.h>
784 static void sighandler(int sig){
785     raise(SIGTERM);
786 }
787 int main(void){
788     signal(SIGILL, sighandler);
789     signal(SIGFPE, sighandler);
790     signal(SIGSEGV, sighandler);
791 #ifdef SIGBUS
792     signal(SIGBUS, sighandler);
793 #endif
794     { $code }
795 }
796 EOF
797 }
798
799 check_type(){
800     log check_type "$@"
801     headers=$1
802     type=$2
803     shift 2
804     disable_safe "$type"
805     incs=""
806     for hdr in $headers; do
807         incs="$incs
808 #include <$hdr>"
809     done
810     check_cc "$@" <<EOF && enable_safe "$type"
811 $incs
812 $type v;
813 EOF
814 }
815
816 check_struct(){
817     log check_type "$@"
818     headers=$1
819     struct=$2
820     member=$3
821     shift 3
822     disable_safe "${struct}_${member}"
823     incs=""
824     for hdr in $headers; do
825         incs="$incs
826 #include <$hdr>"
827     done
828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
829 $incs
830 const void *p = &(($struct *)0)->$member;
831 EOF
832 }
833
834 require(){
835     name="$1"
836     header="$2"
837     func="$3"
838     shift 3
839     check_lib $header $func "$@" || die "ERROR: $name not found"
840 }
841
842 require2(){
843     name="$1"
844     headers="$2"
845     func="$3"
846     shift 3
847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
848 }
849
850 require_pkg_config(){
851     pkg="$1"
852     check_pkg_config "$@" || die "ERROR: $pkg not found"
853     add_cflags    $(get_safe ${pkg}_cflags)
854     add_extralibs $(get_safe ${pkg}_libs)
855 }
856
857 check_host_cc(){
858     log check_host_cc "$@"
859     cat > $TMPC
860     log_file $TMPC
861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
862 }
863
864 check_host_cflags(){
865     log check_host_cflags "$@"
866     check_host_cc "$@" <<EOF && append host_cflags "$@"
867 int x;
868 EOF
869 }
870
871 apply(){
872     file=$1
873     shift
874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
875 }
876
877 cp_if_changed(){
878     cmp -s "$1" "$2" &&
879         echo "$2 is unchanged" ||
880         cp -f "$1" "$2"
881 }
882
883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
884 # system-dependent things.
885
886 COMPONENT_LIST="
887     bsfs
888     decoders
889     demuxers
890     encoders
891     filters
892     hwaccels
893     indevs
894     muxers
895     outdevs
896     parsers
897     protocols
898 "
899
900 CONFIG_LIST="
901     $COMPONENT_LIST
902     aandct
903     ac3dsp
904     avcodec
905     avdevice
906     avfilter
907     avformat
908     avisynth
909     bzlib
910     crystalhd
911     dct
912     doc
913     dwt
914     dxva2
915     fastdiv
916     ffmpeg
917     ffplay
918     ffprobe
919     ffserver
920     fft
921     frei0r
922     golomb
923     gpl
924     gray
925     h264dsp
926     h264pred
927     hardcoded_tables
928     huffman
929     libdc1394
930     libdirac
931     libfaac
932     libfreetype
933     libgsm
934     libmp3lame
935     libnut
936     libopencore_amrnb
937     libopencore_amrwb
938     libopencv
939     libopenjpeg
940     librtmp
941     libschroedinger
942     libspeex
943     libtheora
944     libvorbis
945     libvpx
946     libx264
947     libxavs
948     libxvid
949     lpc
950     lsp
951     mdct
952     memalign_hack
953     mlib
954     mpegaudio_hp
955     network
956     nonfree
957     pic
958     postproc
959     rdft
960     rtpdec
961     runtime_cpudetect
962     shared
963     sinewin
964     small
965     sram
966     static
967     swscale
968     swscale_alpha
969     vaapi
970     vdpau
971     version3
972     x11grab
973     zlib
974 "
975
976 THREADS_LIST='
977     pthreads
978     w32threads
979 '
980
981 ARCH_LIST='
982     alpha
983     arm
984     avr32
985     avr32_ap
986     avr32_uc
987     bfin
988     ia64
989     m68k
990     mips
991     mips64
992     parisc
993     ppc
994     ppc64
995     s390
996     sh4
997     sparc
998     sparc64
999     tomi
1000     x86
1001     x86_32
1002     x86_64
1003 '
1004
1005 ARCH_EXT_LIST='
1006     altivec
1007     amd3dnow
1008     amd3dnowext
1009     armv5te
1010     armv6
1011     armv6t2
1012     armvfp
1013     avx
1014     iwmmxt
1015     mmi
1016     mmx
1017     mmx2
1018     neon
1019     ppc4xx
1020     sse
1021     ssse3
1022     vis
1023 '
1024
1025 HAVE_LIST_PUB='
1026     bigendian
1027     fast_unaligned
1028 '
1029
1030 HAVE_LIST="
1031     $ARCH_EXT_LIST
1032     $HAVE_LIST_PUB
1033     $THREADS_LIST
1034     aligned_stack
1035     alsa_asoundlib_h
1036     altivec_h
1037     arpa_inet_h
1038     attribute_may_alias
1039     attribute_packed
1040     bswap
1041     closesocket
1042     cmov
1043     dcbzl
1044     dev_bktr_ioctl_bt848_h
1045     dev_bktr_ioctl_meteor_h
1046     dev_ic_bt8xx_h
1047     dev_video_meteor_ioctl_meteor_h
1048     dev_video_bktr_ioctl_bt848_h
1049     dlfcn_h
1050     dlopen
1051     dos_paths
1052     ebp_available
1053     ebx_available
1054     exp2
1055     exp2f
1056     fast_64bit
1057     fast_clz
1058     fast_cmov
1059     fcntl
1060     fork
1061     getaddrinfo
1062     gethrtime
1063     GetProcessMemoryInfo
1064     GetProcessTimes
1065     getrusage
1066     gnu_as
1067     struct_rusage_ru_maxrss
1068     ibm_asm
1069     inet_aton
1070     inline_asm
1071     isatty
1072     kbhit
1073     ldbrx
1074     libdc1394_1
1075     libdc1394_2
1076     llrint
1077     llrintf
1078     local_aligned_16
1079     local_aligned_8
1080     localtime_r
1081     log2
1082     log2f
1083     loongson
1084     lrint
1085     lrintf
1086     lzo1x_999_compress
1087     machine_ioctl_bt848_h
1088     machine_ioctl_meteor_h
1089     malloc_h
1090     MapViewOfFile
1091     memalign
1092     mkstemp
1093     mmap
1094     pld
1095     posix_memalign
1096     round
1097     roundf
1098     sdl
1099     sdl_video_size
1100     setmode
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     stripping
1149     symver
1150     yasm
1151 "
1152
1153 PATHS_LIST='
1154     bindir
1155     datadir
1156     incdir
1157     libdir
1158     mandir
1159     prefix
1160     shlibdir
1161 '
1162
1163 CMDLINE_SET="
1164     $PATHS_LIST
1165     ar
1166     arch
1167     as
1168     build_suffix
1169     cc
1170     cpu
1171     cross_prefix
1172     dep_cc
1173     extra_version
1174     host_cc
1175     host_cflags
1176     host_ldflags
1177     host_libs
1178     host_os
1179     ld
1180     logfile
1181     malloc_prefix
1182     nm
1183     pkg_config
1184     samples
1185     source_path
1186     strip
1187     sysinclude
1188     sysroot
1189     target_exec
1190     target_os
1191     target_path
1192 "
1193
1194 CMDLINE_APPEND="
1195     extra_cflags
1196 "
1197
1198 # code dependency declarations
1199
1200 # architecture extensions
1201
1202 armv5te_deps="arm"
1203 armv6_deps="arm"
1204 armv6t2_deps="arm"
1205 armvfp_deps="arm"
1206 iwmmxt_deps="arm"
1207 neon_deps="arm"
1208
1209 mmi_deps="mips"
1210
1211 altivec_deps="ppc"
1212 ppc4xx_deps="ppc"
1213
1214 vis_deps="sparc"
1215
1216 x86_64_suggest="cmov fast_cmov"
1217 amd3dnow_deps="mmx"
1218 amd3dnowext_deps="amd3dnow"
1219 mmx_deps="x86"
1220 mmx2_deps="mmx"
1221 sse_deps="mmx"
1222 ssse3_deps="sse"
1223 avx_deps="ssse3"
1224
1225 aligned_stack_if_any="ppc x86"
1226 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1227 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1228 fast_unaligned_if_any="armv6 ppc x86"
1229
1230 need_memalign="altivec neon sse"
1231 inline_asm_deps="!tms470"
1232
1233 symver_if_any="symver_asm_label symver_gnu_asm"
1234
1235 # subsystems
1236 dct_select="rdft"
1237 mdct_select="fft"
1238 rdft_select="fft"
1239
1240 # decoders / encoders / hardware accelerators
1241 aac_decoder_select="mdct rdft sinewin"
1242 aac_encoder_select="mdct sinewin"
1243 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1244 ac3_decoder_select="mdct ac3_parser"
1245 ac3_encoder_select="mdct ac3dsp"
1246 ac3_fixed_encoder_select="ac3dsp"
1247 alac_encoder_select="lpc"
1248 amrnb_decoder_select="lsp"
1249 amrwb_decoder_select="lsp"
1250 atrac1_decoder_select="mdct sinewin"
1251 atrac3_decoder_select="mdct"
1252 binkaudio_dct_decoder_select="mdct rdft dct"
1253 binkaudio_rdft_decoder_select="mdct rdft"
1254 cavs_decoder_select="golomb"
1255 cook_decoder_select="mdct sinewin"
1256 cscd_decoder_suggest="zlib"
1257 dca_decoder_select="mdct"
1258 dnxhd_encoder_select="aandct"
1259 dxa_decoder_select="zlib"
1260 eac3_decoder_select="ac3_decoder"
1261 eamad_decoder_select="aandct"
1262 eatgq_decoder_select="aandct"
1263 eatqi_decoder_select="aandct"
1264 ffv1_decoder_select="golomb"
1265 flac_decoder_select="golomb"
1266 flac_encoder_select="golomb lpc"
1267 flashsv_decoder_select="zlib"
1268 flashsv_encoder_select="zlib"
1269 flv_decoder_select="h263_decoder"
1270 flv_encoder_select="h263_encoder"
1271 fraps_decoder_select="huffman"
1272 h261_encoder_select="aandct"
1273 h263_decoder_select="h263_parser"
1274 h263_encoder_select="aandct"
1275 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1276 h263i_decoder_select="h263_decoder"
1277 h263p_encoder_select="h263_encoder"
1278 h264_decoder_select="golomb h264dsp h264pred"
1279 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1280 h264_dxva2_hwaccel_deps="dxva2api_h"
1281 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1282 h264_vaapi_hwaccel_select="vaapi"
1283 h264_vdpau_decoder_select="vdpau h264_decoder"
1284 imc_decoder_select="fft mdct"
1285 jpegls_decoder_select="golomb"
1286 jpegls_encoder_select="golomb"
1287 ljpeg_encoder_select="aandct"
1288 loco_decoder_select="golomb"
1289 mjpeg_encoder_select="aandct"
1290 mlp_decoder_select="mlp_parser"
1291 mp1float_decoder_select="dct"
1292 mp2float_decoder_select="dct"
1293 mp3adufloat_decoder_select="dct"
1294 mp3float_decoder_select="dct"
1295 mp3on4float_decoder_select="dct"
1296 mpeg1video_encoder_select="aandct"
1297 mpeg2video_encoder_select="aandct"
1298 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1299 mpeg4_encoder_select="h263_encoder"
1300 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1301 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1302 mpeg2_crystalhd_decoder_select="crystalhd"
1303 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1304 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1305 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1306 mpeg4_crystalhd_decoder_select="crystalhd"
1307 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1308 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1309 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1310 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1311 msmpeg4_crystalhd_decoder_select="crystalhd"
1312 msmpeg4v1_decoder_select="h263_decoder"
1313 msmpeg4v1_encoder_select="h263_encoder"
1314 msmpeg4v2_decoder_select="h263_decoder"
1315 msmpeg4v2_encoder_select="h263_encoder"
1316 msmpeg4v3_decoder_select="h263_decoder"
1317 msmpeg4v3_encoder_select="h263_encoder"
1318 nellymoser_decoder_select="mdct sinewin"
1319 nellymoser_encoder_select="mdct sinewin"
1320 png_decoder_select="zlib"
1321 png_encoder_select="zlib"
1322 qcelp_decoder_select="lsp"
1323 qdm2_decoder_select="mdct rdft"
1324 ra_144_encoder_select="lpc"
1325 rv10_decoder_select="h263_decoder"
1326 rv10_encoder_select="h263_encoder"
1327 rv20_decoder_select="h263_decoder"
1328 rv20_encoder_select="h263_encoder"
1329 rv30_decoder_select="golomb h264pred"
1330 rv40_decoder_select="golomb h264pred"
1331 shorten_decoder_select="golomb"
1332 sipr_decoder_select="lsp"
1333 snow_decoder_select="dwt"
1334 snow_encoder_select="aandct dwt"
1335 sonic_decoder_select="golomb"
1336 sonic_encoder_select="golomb"
1337 sonic_ls_encoder_select="golomb"
1338 svq1_encoder_select="aandct"
1339 svq3_decoder_select="golomb h264dsp h264pred"
1340 svq3_decoder_suggest="zlib"
1341 theora_decoder_select="vp3_decoder"
1342 tiff_decoder_suggest="zlib"
1343 tiff_encoder_suggest="zlib"
1344 truehd_decoder_select="mlp_decoder"
1345 tscc_decoder_select="zlib"
1346 twinvq_decoder_select="mdct lsp sinewin"
1347 vc1_decoder_select="h263_decoder"
1348 vc1_crystalhd_decoder_select="crystalhd"
1349 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1350 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1351 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1352 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1353 vorbis_decoder_select="mdct"
1354 vorbis_encoder_select="mdct"
1355 vp6_decoder_select="huffman"
1356 vp6a_decoder_select="vp6_decoder"
1357 vp6f_decoder_select="vp6_decoder"
1358 vp8_decoder_select="h264pred"
1359 wmapro_decoder_select="mdct sinewin"
1360 wmav1_decoder_select="mdct sinewin"
1361 wmav1_encoder_select="mdct sinewin"
1362 wmav2_decoder_select="mdct sinewin"
1363 wmav2_encoder_select="mdct sinewin"
1364 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1365 wmv1_decoder_select="h263_decoder"
1366 wmv1_encoder_select="h263_encoder"
1367 wmv2_decoder_select="h263_decoder"
1368 wmv2_encoder_select="h263_encoder"
1369 wmv3_decoder_select="vc1_decoder"
1370 wmv3_crystalhd_decoder_select="crystalhd"
1371 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1372 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1373 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1374 zlib_decoder_select="zlib"
1375 zlib_encoder_select="zlib"
1376 zmbv_decoder_select="zlib"
1377 zmbv_encoder_select="zlib"
1378
1379 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1380 vaapi_deps="va_va_h"
1381 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1382
1383 # parsers
1384 h264_parser_select="golomb h264dsp h264pred"
1385
1386 # external libraries
1387 libdirac_decoder_deps="libdirac !libschroedinger"
1388 libdirac_encoder_deps="libdirac"
1389 libfaac_encoder_deps="libfaac"
1390 libgsm_decoder_deps="libgsm"
1391 libgsm_encoder_deps="libgsm"
1392 libgsm_ms_decoder_deps="libgsm"
1393 libgsm_ms_encoder_deps="libgsm"
1394 libmp3lame_encoder_deps="libmp3lame"
1395 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1396 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1397 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1398 libopenjpeg_decoder_deps="libopenjpeg"
1399 libschroedinger_decoder_deps="libschroedinger"
1400 libschroedinger_encoder_deps="libschroedinger"
1401 libspeex_decoder_deps="libspeex"
1402 libtheora_encoder_deps="libtheora"
1403 libvorbis_encoder_deps="libvorbis"
1404 libvpx_decoder_deps="libvpx"
1405 libvpx_encoder_deps="libvpx"
1406 libx264_encoder_deps="libx264"
1407 libxavs_encoder_deps="libxavs"
1408 libxvid_encoder_deps="libxvid"
1409
1410 # demuxers / muxers
1411 ac3_demuxer_select="ac3_parser"
1412 asf_stream_muxer_select="asf_muxer"
1413 avisynth_demuxer_deps="avisynth"
1414 dirac_demuxer_select="dirac_parser"
1415 eac3_demuxer_select="ac3_parser"
1416 flac_demuxer_select="flac_parser"
1417 ipod_muxer_select="mov_muxer"
1418 libnut_demuxer_deps="libnut"
1419 libnut_muxer_deps="libnut"
1420 matroska_audio_muxer_select="matroska_muxer"
1421 matroska_demuxer_suggest="zlib bzlib"
1422 mov_demuxer_suggest="zlib"
1423 mp3_demuxer_select="mpegaudio_parser"
1424 mp4_muxer_select="mov_muxer"
1425 mpegtsraw_demuxer_select="mpegts_demuxer"
1426 mxf_d10_muxer_select="mxf_muxer"
1427 ogg_demuxer_select="golomb"
1428 psp_muxer_select="mov_muxer"
1429 rtp_demuxer_select="sdp_demuxer"
1430 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1431 rtsp_demuxer_select="http_protocol rtpdec"
1432 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1433 sap_demuxer_select="sdp_demuxer"
1434 sap_muxer_select="rtp_muxer rtp_protocol"
1435 sdp_demuxer_select="rtpdec"
1436 spdif_muxer_select="aac_parser"
1437 tg2_muxer_select="mov_muxer"
1438 tgp_muxer_select="mov_muxer"
1439 w64_demuxer_deps="wav_demuxer"
1440
1441 # indevs / outdevs
1442 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1443 alsa_outdev_deps="alsa_asoundlib_h"
1444 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1445 dv1394_indev_deps="dv1394 dv_demuxer"
1446 fbdev_indev_deps="linux_fb_h"
1447 jack_indev_deps="jack_jack_h"
1448 libdc1394_indev_deps="libdc1394"
1449 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1450 oss_outdev_deps_any="soundcard_h sys_soundcard_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 scale_filter_deps="swscale"
1478 ocv_filter_deps="libopencv"
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 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="$libdir_default"
1613
1614 # toolchain
1615 ar_default="ar"
1616 cc_default="gcc"
1617 cc_version=\"unknown\"
1618 host_cc_default="gcc"
1619 ln_s="ln -sf"
1620 nm_default="nm"
1621 objformat="elf"
1622 pkg_config_default=pkg-config
1623 ranlib="ranlib"
1624 strip_default="strip"
1625 yasmexe="yasm"
1626 nogas=":"
1627
1628 nm_opts='-g'
1629
1630 # machine
1631 arch_default=$(uname -m)
1632 cpu="generic"
1633
1634 # OS
1635 target_os_default=$(tolower $(uname -s))
1636 host_os=$target_os_default
1637
1638 # configurable options
1639 enable avcodec
1640 enable avdevice
1641 enable avfilter
1642 enable avformat
1643 enable avutil
1644 enable asm
1645 enable debug
1646 enable doc
1647 enable fastdiv
1648 enable ffmpeg
1649 enable ffplay
1650 enable ffprobe
1651 enable ffserver
1652 enable mpegaudio_hp
1653 enable network
1654 enable optimizations
1655 enable protocols
1656 enable static
1657 enable stripping
1658 enable swscale
1659 enable swscale_alpha
1660
1661 # build settings
1662 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1663 FFSERVERLDFLAGS=-Wl,-E
1664 LIBPREF="lib"
1665 LIBSUF=".a"
1666 FULLNAME='$(NAME)$(BUILDSUF)'
1667 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1668 SLIBPREF="lib"
1669 SLIBSUF=".so"
1670 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1671 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1672 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1673 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1674
1675 CC_O='-o $@'
1676
1677 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1678 host_libs='-lm'
1679
1680 target_path='$(CURDIR)'
1681
1682 # since the object filename is not given with the -MM flag, the compiler
1683 # is only able to print the basename, and we must add the path ourselves
1684 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1685 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1686
1687 # find source path
1688 source_path="$(dirname "$0")"
1689 enable source_path_used
1690 if test -f configure; then
1691     source_path="$(pwd)"
1692     disable source_path_used
1693 else
1694     source_path="$(cd "$source_path"; pwd)"
1695     echo "$source_path" | grep -q '[[:blank:]]' &&
1696         die "Out of tree builds are impossible with whitespace in source path."
1697     test -e "$source_path/config.h" &&
1698         die "Out of tree builds are impossible with config.h in source dir."
1699 fi
1700
1701 for v in "$@"; do
1702     r=${v#*=}
1703     l=${v%"$r"}
1704     r=$(sh_quote "$r")
1705     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1706 done
1707
1708 find_things(){
1709     thing=$1
1710     pattern=$2
1711     file=$source_path/$3
1712     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1713 }
1714
1715 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1716 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1717 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1718 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1719 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1720 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1721 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1722 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1723 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1724 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1725 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1726
1727 find_tests(){
1728     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1729 }
1730
1731 ACODEC_TESTS=$(find_tests acodec)
1732 VCODEC_TESTS=$(find_tests vsynth1)
1733 LAVF_TESTS=$(find_tests lavf)
1734 LAVFI_TESTS=$(find_tests lavfi)
1735 SEEK_TESTS=$(find_tests seek seek_)
1736
1737 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1738
1739 for n in $COMPONENT_LIST; do
1740     v=$(toupper ${n%s})_LIST
1741     eval enable \$$v
1742     eval ${n}_if_any="\$$v"
1743 done
1744
1745 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1746
1747 die_unknown(){
1748     echo "Unknown option \"$1\"."
1749     echo "See $0 --help for available options."
1750     exit 1
1751 }
1752
1753 show_list() {
1754     suffix=_$1
1755     shift
1756     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1757     exit 0
1758 }
1759
1760 for opt do
1761     optval="${opt#*=}"
1762     case "$opt" in
1763     --extra-ldflags=*) add_ldflags $optval
1764     ;;
1765     --extra-libs=*) add_extralibs $optval
1766     ;;
1767     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1768     ;;
1769     --enable-debug=*) debuglevel="$optval"
1770     ;;
1771     --disable-everything)
1772     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1773     ;;
1774     --enable-*=*|--disable-*=*)
1775     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1776     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1777     eval list=\$$(toupper $thing)_LIST
1778     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1779     $action $(filter "$name" $list)
1780     ;;
1781     --enable-?*|--disable-?*)
1782     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1783     if is_in $option $COMPONENT_LIST; then
1784         test $action = disable && action=unset
1785         eval $action \$$(toupper ${option%s})_LIST
1786     elif is_in $option $CMDLINE_SELECT; then
1787         $action $option
1788     else
1789         die_unknown $opt
1790     fi
1791     ;;
1792     --list-*)
1793         NAME="${opt#--list-}"
1794         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1795         NAME=${NAME%s}
1796         eval show_list $NAME \$$(toupper $NAME)_LIST
1797     ;;
1798     --help|-h) show_help
1799     ;;
1800     *)
1801     optname="${opt%%=*}"
1802     optname="${optname#--}"
1803     optname=$(echo "$optname" | sed 's/-/_/g')
1804     if is_in $optname $CMDLINE_SET; then
1805         eval $optname='$optval'
1806     elif is_in $optname $CMDLINE_APPEND; then
1807         append $optname "$optval"
1808     else
1809          die_unknown $opt
1810     fi
1811     ;;
1812     esac
1813 done
1814
1815 disabled logging && logfile=/dev/null
1816
1817 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1818 set >> $logfile
1819
1820 test -n "$cross_prefix" && enable cross_compile
1821
1822 if enabled cross_compile; then
1823     test -n "$arch" && test -n "$target_os" ||
1824         die "Must specify target arch and OS when cross-compiling"
1825 fi
1826
1827 set_default arch target_os
1828
1829 ar_default="${cross_prefix}${ar_default}"
1830 cc_default="${cross_prefix}${cc_default}"
1831 nm_default="${cross_prefix}${nm_default}"
1832 pkg_config_default="${cross_prefix}${pkg_config_default}"
1833 ranlib="${cross_prefix}${ranlib}"
1834 strip_default="${cross_prefix}${strip_default}"
1835
1836 sysinclude_default="${sysroot}/usr/include"
1837
1838 set_default cc nm pkg_config strip sysinclude
1839 enabled cross_compile || host_cc_default=$cc
1840 set_default host_cc
1841
1842 exesuf() {
1843     case $1 in
1844         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1845     esac
1846 }
1847
1848 EXESUF=$(exesuf $target_os)
1849 HOSTEXESUF=$(exesuf $host_os)
1850
1851 # set temporary file name
1852 : ${TMPDIR:=$TEMPDIR}
1853 : ${TMPDIR:=$TMP}
1854 : ${TMPDIR:=/tmp}
1855
1856 if ! check_cmd mktemp -u XXXXXX; then
1857     # simple replacement for missing mktemp
1858     # NOT SAFE FOR GENERAL USE
1859     mktemp(){
1860         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1861     }
1862 fi
1863
1864 tmpfile(){
1865     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1866         (set -C; exec > $tmp) 2>/dev/null ||
1867         die "Unable to create temporary file in $TMPDIR."
1868     append TMPFILES $tmp
1869     eval $1=$tmp
1870 }
1871
1872 trap 'rm -f -- $TMPFILES' EXIT
1873
1874 tmpfile TMPC  .c
1875 tmpfile TMPE  $EXESUF
1876 tmpfile TMPH  .h
1877 tmpfile TMPO  .o
1878 tmpfile TMPS  .S
1879 tmpfile TMPV  .ver
1880 tmpfile TMPSH .sh
1881 tmpfile TMPASM .asm
1882
1883 unset -f mktemp
1884
1885 chmod +x $TMPE
1886
1887 # make sure we can execute files in $TMPDIR
1888 cat > $TMPSH 2>> $logfile <<EOF
1889 #! /bin/sh
1890 EOF
1891 chmod +x $TMPSH >> $logfile 2>&1
1892 if ! $TMPSH >> $logfile 2>&1; then
1893     cat <<EOF
1894 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1895 variable to another directory and make sure that it is not mounted noexec.
1896 EOF
1897     die "Sanity test failed."
1898 fi
1899
1900 filter_cflags=echo
1901 filter_cppflags=echo
1902 filter_asflags=echo
1903
1904 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1905     cc_type=llvm_gcc
1906     cc_version=__VERSION__
1907     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1908     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1909     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1910     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1911     speed_cflags='-O3'
1912     size_cflags='-Os'
1913 elif $cc -v 2>&1 | grep -qi ^gcc; then
1914     cc_type=gcc
1915     cc_version=__VERSION__
1916     gcc_version=$($cc --version | head -n1)
1917     gcc_basever=$($cc -dumpversion)
1918     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1919     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1920     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1921     if ! $cc -dumpversion | grep -q '^2\.'; then
1922         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1923         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1924     fi
1925     speed_cflags='-O3'
1926     size_cflags='-Os'
1927 elif $cc --version 2>/dev/null | grep -q Intel; then
1928     cc_type=icc
1929     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1930     cc_ident=$($cc --version | head -n1)
1931     icc_version=$($cc -dumpversion)
1932     CC_DEPFLAGS='-MMD'
1933     AS_DEPFLAGS='-MMD'
1934     speed_cflags='-O3'
1935     size_cflags='-Os'
1936     noopt_cflags='-O1'
1937 elif $cc -v 2>&1 | grep -q xlc; then
1938     cc_type=xlc
1939     cc_version="AV_STRINGIFY(__IBMC__)"
1940     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1941     speed_cflags='-O5'
1942     size_cflags='-O5 -qcompact'
1943 elif $cc -V 2>/dev/null | grep -q Compaq; then
1944     cc_type=ccc
1945     cc_version="AV_STRINGIFY(__DECC_VER)"
1946     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1947     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1948     debuglevel=3
1949     add_ldflags -Wl,-z,now # calls to libots crash without this
1950     speed_cflags='-fast'
1951     size_cflags='-O1'
1952 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1953     test -d "$sysroot" || die "No valid sysroot specified."
1954     cc_type=armcc
1955     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1956     cc_ident=$($cc --vsn | head -n1)
1957     armcc_conf="$PWD/armcc.conf"
1958     $cc --arm_linux_configure                 \
1959         --arm_linux_config_file="$armcc_conf" \
1960         --configure_sysroot="$sysroot"        \
1961         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1962         die "Error creating armcc configuration file."
1963     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1964     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1965     as_default="${cross_prefix}gcc"
1966     CC_DEPFLAGS='-MMD'
1967     AS_DEPFLAGS='-MMD'
1968     speed_cflags='-O3'
1969     size_cflags='-Os'
1970     filter_asflags="filter_out -W${armcc_opt}*"
1971 elif $cc -version 2>/dev/null | grep -q TMS470; then
1972     cc_type=tms470
1973     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1974     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1975     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1976     CC_O='-fr=$(@D)'
1977     as_default="${cross_prefix}gcc"
1978     ld_default="${cross_prefix}gcc"
1979     TMPO=$(basename $TMPC .c).o
1980     append TMPFILES $TMPO
1981     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1982     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1983     AS_DEPFLAGS='-MMD'
1984     speed_cflags='-O3 -mf=5'
1985     size_cflags='-O3 -mf=2'
1986     filter_cflags=tms470_flags
1987     tms470_flags(){
1988         for flag; do
1989             case $flag in
1990                 -march=*|-mcpu=*)
1991                     case "${flag#*=}" in
1992                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1993                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1994                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1995                         armv6*|arm11*)          echo -mv=6   ;;
1996                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1997                                                 echo -mv=5e  ;;
1998                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1999                     esac
2000                     ;;
2001                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2002                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2003                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2004                 -msoft-float)   echo --float_support=vfplib       ;;
2005                 -O[0-3]|-mf=*)  echo $flag                        ;;
2006                 -g)             echo -g -mn                       ;;
2007                 -pds=*)         echo $flag                        ;;
2008             esac
2009         done
2010     }
2011 elif $cc -v 2>&1 | grep -q clang; then
2012     cc_type=clang
2013     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2014         cc_version=__clang_version__ || cc_version=__VERSION__
2015     cc_ident=$($cc --version | head -n1)
2016     CC_DEPFLAGS='-MMD'
2017     AS_DEPFLAGS='-MMD'
2018     speed_cflags='-O3'
2019     size_cflags='-Os'
2020 elif $cc -V 2>&1 | grep -q Sun; then
2021     cc_type=suncc
2022     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2023     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2024     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2025     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2026     speed_cflags='-O5'
2027     size_cflags='-O5 -xspace'
2028     filter_cflags=suncc_flags
2029     suncc_flags(){
2030         for flag; do
2031             case $flag in
2032                 -march=*|-mcpu=*)
2033                     case "${flag#*=}" in
2034                         native)                   echo -xtarget=native       ;;
2035                         v9|niagara)               echo -xarch=sparc          ;;
2036                         ultrasparc)               echo -xarch=sparcvis       ;;
2037                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2038                         i586|pentium)             echo -xchip=pentium        ;;
2039                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2040                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2041                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2042                         pentium4*)          echo -xtarget=pentium4           ;;
2043                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2044                         *-sse3)             echo -xarch=sse3                 ;;
2045                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2046                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2047                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2048                         k8|opteron|athlon64|athlon-fx)
2049                                                   echo -xarch=sse2a          ;;
2050                         athlon*)                  echo -xarch=pentium_proa   ;;
2051                     esac
2052                     ;;
2053                 -std=c99)             echo -xc99              ;;
2054                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2055                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2056                 -W*,*)                echo $flag              ;;
2057                 -f*-*|-W*)                                    ;;
2058                 *)                    echo $flag              ;;
2059             esac
2060         done
2061     }
2062 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2063     cc_type=pathscale
2064     cc_version=__PATHSCALE__
2065     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2066     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2067     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2068     speed_cflags='-O2'
2069     size_cflags='-Os'
2070 elif $cc -v 2>&1 | grep -q Open64; then
2071     cc_type=open64
2072     cc_version=__OPEN64__
2073     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2074     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2075     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2076     speed_cflags='-O2'
2077     size_cflags='-Os'
2078 fi
2079
2080 test -n "$cc_type" && enable $cc_type ||
2081     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2082
2083 : ${as_default:=$cc}
2084 : ${dep_cc_default:=$cc}
2085 : ${ld_default:=$cc}
2086 set_default ar as dep_cc ld
2087
2088 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2089 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2090
2091 add_cflags $extra_cflags
2092 add_asflags $extra_cflags
2093
2094 if test -n "$sysroot"; then
2095     case "$cc_type" in
2096         gcc|llvm_gcc|clang)
2097             add_cppflags --sysroot="$sysroot"
2098             add_ldflags --sysroot="$sysroot"
2099         ;;
2100         tms470)
2101             add_cppflags -I"$sysinclude"
2102             add_ldflags  --sysroot="$sysroot"
2103         ;;
2104     esac
2105 fi
2106
2107 if test "$cpu" = host; then
2108     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2109
2110     case "$cc_type" in
2111         gcc|llvm_gcc)
2112             check_native(){
2113                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2114                 sed -n "/$1=/{
2115                             s/.*$1=\\([^ ]*\\).*/\\1/
2116                             p
2117                             q
2118                         }" $TMPE
2119             }
2120             cpu=$(check_native -march || check_native -mcpu)
2121         ;;
2122     esac
2123
2124     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2125 fi
2126
2127 # Deal with common $arch aliases
2128 case "$arch" in
2129     arm*)
2130         arch="arm"
2131     ;;
2132     mips|mipsel|IP*)
2133         arch="mips"
2134     ;;
2135     mips64*)
2136         arch="mips"
2137         subarch="mips64"
2138     ;;
2139     parisc|hppa)
2140         arch="parisc"
2141     ;;
2142     parisc64|hppa64)
2143         arch="parisc"
2144         subarch="parisc64"
2145     ;;
2146     "Power Macintosh"|ppc|powerpc)
2147         arch="ppc"
2148     ;;
2149     ppc64|powerpc64)
2150         arch="ppc"
2151         subarch="ppc64"
2152     ;;
2153     s390|s390x)
2154         arch="s390"
2155     ;;
2156     sh4|sh)
2157         arch="sh4"
2158     ;;
2159     sun4u|sparc64)
2160         arch="sparc"
2161         subarch="sparc64"
2162     ;;
2163     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2164         arch="x86"
2165     ;;
2166 esac
2167
2168 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2169 enable $arch
2170
2171 # Add processor-specific flags
2172 if test "$cpu" = generic; then
2173     : do nothing
2174 elif enabled ppc; then
2175
2176     case $(tolower $cpu) in
2177         601|ppc601|powerpc601)
2178             cpuflags="-mcpu=601"
2179             disable altivec
2180         ;;
2181         603*|ppc603*|powerpc603*)
2182             cpuflags="-mcpu=603"
2183             disable altivec
2184         ;;
2185         604*|ppc604*|powerpc604*)
2186             cpuflags="-mcpu=604"
2187             disable altivec
2188         ;;
2189         g3|75*|ppc75*|powerpc75*)
2190             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2191             disable altivec
2192         ;;
2193         g4|745*|ppc745*|powerpc745*)
2194             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2195         ;;
2196         74*|ppc74*|powerpc74*)
2197             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2198         ;;
2199         g5|970|ppc970|powerpc970|power4*)
2200             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2201         ;;
2202         cell)
2203             cpuflags="-mcpu=cell"
2204             enable ldbrx
2205         ;;
2206         e500v2)
2207             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2208             disable altivec
2209         ;;
2210         e500)
2211             cpuflags="-mcpu=8540 -mhard-float"
2212             disable altivec
2213         ;;
2214     esac
2215
2216 elif enabled x86; then
2217
2218     case $cpu in
2219         i[345]86|pentium)
2220             cpuflags="-march=$cpu"
2221             disable mmx
2222         ;;
2223         # targets that do NOT support conditional mov (cmov)
2224         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2225             cpuflags="-march=$cpu"
2226             disable cmov
2227         ;;
2228         # targets that do support conditional mov (cmov)
2229         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2230             cpuflags="-march=$cpu"
2231             enable cmov
2232             enable fast_cmov
2233         ;;
2234         # targets that do support conditional mov but on which it's slow
2235         pentium4|pentium4m|prescott|nocona)
2236             cpuflags="-march=$cpu"
2237             enable cmov
2238             disable fast_cmov
2239         ;;
2240     esac
2241
2242 elif enabled sparc; then
2243
2244     case $cpu in
2245         niagara)
2246             cpuflags="-mcpu=$cpu"
2247             disable vis
2248         ;;
2249         sparc64)
2250             cpuflags="-mcpu=v9"
2251         ;;
2252     esac
2253
2254 elif enabled arm; then
2255
2256     case $cpu in
2257         armv*)
2258             cpuflags="-march=$cpu"
2259             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2260         ;;
2261         *)
2262             cpuflags="-mcpu=$cpu"
2263             case $cpu in
2264                 cortex-a*)                               subarch=armv7a  ;;
2265                 cortex-r*)                               subarch=armv7r  ;;
2266                 cortex-m*)                               subarch=armv7m  ;;
2267                 arm11*)                                  subarch=armv6   ;;
2268                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2269                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2270             esac
2271         ;;
2272     esac
2273
2274 elif enabled alpha; then
2275
2276     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2277
2278 elif enabled bfin; then
2279
2280     cpuflags="-mcpu=$cpu"
2281
2282 elif enabled mips; then
2283
2284     cpuflags="-march=$cpu"
2285
2286 elif enabled avr32; then
2287
2288     case $cpu in
2289         ap7[02]0[0-2])
2290             subarch="avr32_ap"
2291             cpuflags="-mpart=$cpu"
2292         ;;
2293         ap)
2294             subarch="avr32_ap"
2295             cpuflags="-march=$cpu"
2296         ;;
2297         uc3[ab]*)
2298             subarch="avr32_uc"
2299             cpuflags="-mcpu=$cpu"
2300         ;;
2301         uc)
2302             subarch="avr32_uc"
2303             cpuflags="-march=$cpu"
2304         ;;
2305     esac
2306
2307 fi
2308
2309 add_cflags $cpuflags
2310 add_asflags $cpuflags
2311
2312 # compiler sanity check
2313 check_exec <<EOF
2314 int main(void){ return 0; }
2315 EOF
2316 if test "$?" != 0; then
2317     echo "$cc is unable to create an executable file."
2318     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2319         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2320         echo "Only do this if you know what cross compiling means."
2321     fi
2322     die "C compiler test failed."
2323 fi
2324
2325 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2326 check_cflags -std=c99
2327 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2328 #include <stdlib.h>
2329 EOF
2330 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2331 #include <stdlib.h>
2332 EOF
2333
2334 check_host_cflags -std=c99
2335
2336 case "$arch" in
2337     alpha|ia64|mips|parisc|sparc)
2338         spic=$shared
2339     ;;
2340     x86)
2341         subarch="x86_32"
2342         check_cc <<EOF && subarch="x86_64"
2343         int test[(int)sizeof(char*) - 7];
2344 EOF
2345         if test "$subarch" = "x86_64"; then
2346             spic=$shared
2347         fi
2348     ;;
2349 esac
2350
2351 enable $subarch
2352 enabled spic && enable pic
2353
2354 # OS specific
2355 case $target_os in
2356     haiku)
2357         prefix_default="/boot/common"
2358         network_extralibs="-lnetwork"
2359         host_libs=
2360         ;;
2361     sunos)
2362         FFSERVERLDFLAGS=""
2363         SHFLAGS='-shared -Wl,-h,$$(@F)'
2364         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2365         network_extralibs="-lsocket -lnsl"
2366         add_cppflags -D__EXTENSIONS__
2367         nm_opts='-P -g'
2368         ;;
2369     netbsd)
2370         disable symver
2371         oss_indev_extralibs="-lossaudio"
2372         oss_outdev_extralibs="-lossaudio"
2373         add_cppflags -D_XOPEN_SOURCE=600
2374         ;;
2375     openbsd)
2376         enable malloc_aligned
2377         # On OpenBSD 4.5. the compiler does not use PIC unless
2378         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2379         # however the generated executable will not do anything
2380         # (simply quits with exit-code 1, no crash, no output).
2381         # Thus explicitly enable PIC here.
2382         enable pic
2383         disable symver
2384         SHFLAGS='-shared'
2385         oss_indev_extralibs="-lossaudio"
2386         oss_outdev_extralibs="-lossaudio"
2387         ;;
2388     dragonfly)
2389         enable malloc_aligned
2390         disable symver
2391         ;;
2392     freebsd)
2393         enable malloc_aligned
2394         ;;
2395     bsd/os)
2396         add_extralibs -lpoll -lgnugetopt
2397         strip="strip -d"
2398         ;;
2399     darwin)
2400         enable malloc_aligned
2401         gas="gas-preprocessor.pl $cc"
2402         enabled ppc && add_asflags -force_cpusubtype_ALL
2403         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2404         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2405         strip="${strip} -x"
2406         add_ldflags -Wl,-dynamic,-search_paths_first
2407         SLIBSUF=".dylib"
2408         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2409         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2410         FFSERVERLDFLAGS=-Wl,-bind_at_load
2411         objformat="macho"
2412         enabled x86_64 && objformat="macho64"
2413         enabled_any pic shared ||
2414             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2415         ;;
2416     mingw32*)
2417         if test $target_os = "mingw32ce"; then
2418             disable network
2419         else
2420             target_os=mingw32
2421         fi
2422         LIBTARGET=i386
2423         if enabled x86_64; then
2424             enable malloc_aligned
2425             LIBTARGET="i386:x86-64"
2426         elif enabled arm; then
2427             LIBTARGET=arm-wince
2428         fi
2429         shlibdir_default="$bindir_default"
2430         disable ffserver
2431         SLIBPREF=""
2432         SLIBSUF=".dll"
2433         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2434         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2435         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2436         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2437             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2438             install -d "$(LIBDIR)"; \
2439             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2440         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2441         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'
2442         objformat="win32"
2443         dlltool="${cross_prefix}dlltool"
2444         enable dos_paths
2445         check_cflags -fno-common
2446         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2447                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2448                 die "ERROR: MinGW runtime version must be >= 3.15."
2449         ;;
2450     cygwin*)
2451         target_os=cygwin
2452         shlibdir_default="$bindir_default"
2453         SLIBPREF="cyg"
2454         SLIBSUF=".dll"
2455         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2456         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2457         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2458         objformat="win32"
2459         enable dos_paths
2460         check_cflags -fno-common
2461         ;;
2462     *-dos|freedos|opendos)
2463         disable ffplay ffserver
2464         disable $INDEV_LIST $OUTDEV_LIST
2465         network_extralibs="-lsocket"
2466         objformat="coff"
2467         enable dos_paths
2468         ;;
2469     linux)
2470         enable dv1394
2471         ;;
2472     irix*)
2473         target_os=irix
2474         ranlib="echo ignoring ranlib"
2475         ;;
2476     os/2*)
2477         strip="lxlite -CS"
2478         ln_s="cp -f"
2479         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2480         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2481         FFSERVERLDFLAGS=""
2482         LIBSUF="_s.a"
2483         SLIBPREF=""
2484         SLIBSUF=".dll"
2485         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2486         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2487         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2488           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2489           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2490           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2491           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2492           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2493         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2494           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2495         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2496         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2497         enable dos_paths
2498         ;;
2499     gnu/kfreebsd)
2500         ;;
2501     gnu)
2502         ;;
2503     qnx)
2504         add_cppflags -D_QNX_SOURCE
2505         network_extralibs="-lsocket"
2506         ;;
2507     none)
2508         ;;
2509     *)
2510         die "Unknown OS '$target_os'."
2511         ;;
2512 esac
2513
2514 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2515
2516 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2517
2518 set_default $PATHS_LIST
2519
2520 # we need to build at least one lib type
2521 if ! enabled_any static shared; then
2522     cat <<EOF
2523 At least one library type must be built.
2524 Specify --enable-static to build the static libraries or --enable-shared to
2525 build the shared libraries as well. To only build the shared libraries specify
2526 --disable-static in addition to --enable-shared.
2527 EOF
2528     exit 1;
2529 fi
2530
2531 disabled static && LIBNAME=""
2532
2533 die_license_disabled() {
2534     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2535 }
2536
2537 die_license_disabled gpl libx264
2538 die_license_disabled gpl libxavs
2539 die_license_disabled gpl libxvid
2540 die_license_disabled gpl postproc
2541 die_license_disabled gpl x11grab
2542
2543 die_license_disabled nonfree libfaac
2544
2545 die_license_disabled version3 libopencore_amrnb
2546 die_license_disabled version3 libopencore_amrwb
2547
2548 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2549
2550 disabled optimizations || check_cflags -fomit-frame-pointer
2551
2552 enable_pic() {
2553     enable pic
2554     add_cppflags -DPIC
2555     add_cflags   -fPIC
2556     add_asflags  -fPIC
2557 }
2558
2559 enabled pic && enable_pic
2560
2561 check_cc <<EOF || die "Symbol mangling check failed."
2562 int ff_extern;
2563 EOF
2564 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2565 extern_prefix=${sym%%ff_extern*}
2566
2567 check_cc <<EOF && enable inline_asm
2568 void foo(void) { __asm__ volatile ("" ::); }
2569 EOF
2570
2571 _restrict=
2572 for restrict_keyword in restrict __restrict__ __restrict; do
2573     check_cc <<EOF && _restrict=$restrict_keyword && break
2574 void foo(char * $restrict_keyword p);
2575 EOF
2576 done
2577
2578 check_cc <<EOF && enable attribute_packed
2579 struct { int x; } __attribute__((packed)) x;
2580 EOF
2581
2582 check_cc <<EOF && enable attribute_may_alias
2583 union { int x; } __attribute__((may_alias)) x;
2584 EOF
2585
2586 check_cc <<EOF || die "endian test failed"
2587 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2588 EOF
2589 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2590
2591 if enabled alpha; then
2592
2593     check_cflags -mieee
2594
2595 elif enabled arm; then
2596
2597     check_cflags -marm
2598     nogas=die
2599
2600     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2601         enable vfp_args
2602     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2603         case "${cross_prefix:-$cc}" in
2604             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2605             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2606 __asm__ (".eabi_attribute 28, 1");
2607 int main(void) { return 0; }
2608 EOF
2609         esac
2610         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2611     fi
2612
2613     # We have to check if pld is a nop and disable it.
2614     check_asm pld '"pld [r0]"'
2615
2616     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2617     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2618     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2619     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2620     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2621     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2622
2623     enabled_all armv6t2 shared !pic && enable_pic
2624
2625 elif enabled mips; then
2626
2627     check_asm loongson '"dmult.g $1, $2, $3"'
2628     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2629
2630 elif enabled ppc; then
2631
2632     enable local_aligned_8 local_aligned_16
2633
2634     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2635     check_asm ibm_asm   '"add 0, 0, 0"'
2636     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2637     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2638
2639     # AltiVec flags: The FSF version of GCC differs from the Apple version
2640     if enabled altivec; then
2641         nogas=warn
2642         check_cflags -maltivec -mabi=altivec &&
2643         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2644         check_cflags -faltivec
2645
2646         # check if our compiler supports Motorola AltiVec C API
2647         check_cc <<EOF || disable altivec
2648 $inc_altivec_h
2649 int main(void) {
2650     vector signed int v1, v2, v3;
2651     v1 = vec_add(v2,v3);
2652     return 0;
2653 }
2654 EOF
2655
2656         # check if our compiler supports braces for vector declarations
2657         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2658 $inc_altivec_h
2659 int main (void) { (vector int) {1}; return 0; }
2660 EOF
2661     fi
2662
2663 elif enabled sparc; then
2664
2665     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2666         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2667
2668 elif enabled x86; then
2669
2670     enable local_aligned_8 local_aligned_16
2671
2672     # check whether EBP is available on x86
2673     # As 'i' is stored on the stack, this program will crash
2674     # if the base pointer is used to access it because the
2675     # base pointer is cleared in the inline assembly code.
2676     check_exec_crash <<EOF && enable ebp_available
2677     volatile int i=0;
2678     __asm__ volatile (
2679         "xorl %%ebp, %%ebp"
2680     ::: "%ebp");
2681     return i;
2682 EOF
2683
2684     # check whether EBX is available on x86
2685     check_asm ebx_available '""::"b"(0)' &&
2686         check_asm ebx_available '"":::"%ebx"'
2687
2688     # check whether xmm clobbers are supported
2689     check_asm xmm_clobbers '"":::"%xmm0"'
2690
2691     # check whether more than 10 operands are supported
2692     check_cc <<EOF && enable ten_operands
2693 int main(void) {
2694     int x=0;
2695     __asm__ volatile(
2696         ""
2697         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2698     );
2699     return 0;
2700 }
2701 EOF
2702
2703     # check whether binutils is new enough to compile SSSE3/MMX2
2704     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2705     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2706
2707     check_asm bswap '"bswap %%eax" ::: "%eax"'
2708
2709     if ! disabled_any asm mmx yasm; then
2710         if check_cmd $yasmexe --version; then
2711             enabled x86_64 && yasm_extra="-m amd64"
2712             yasm_debug="-g dwarf2"
2713         elif check_cmd nasm -v; then
2714             yasmexe=nasm
2715             yasm_debug="-g -F dwarf"
2716             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2717         fi
2718
2719         YASMFLAGS="-f $objformat $yasm_extra"
2720         enabled pic               && append YASMFLAGS "-DPIC"
2721         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2722         case "$objformat" in
2723             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2724         esac
2725
2726         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2727             die "yasm not found, use --disable-yasm for a crippled build"
2728         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2729     fi
2730
2731     case "$cpu" in
2732         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2733             disable fast_clz
2734         ;;
2735     esac
2736
2737 fi
2738
2739 if enabled asm; then
2740     as=${gas:=$as}
2741     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2742         $nogas "GNU assembler not found, install gas-preprocessor"
2743 fi
2744
2745 if check_func dlopen; then
2746     ldl=
2747 elif check_func dlopen -ldl; then
2748     ldl=-ldl
2749 fi
2750
2751 if enabled network; then
2752     check_type "sys/types.h sys/socket.h" socklen_t
2753     check_type netdb.h "struct addrinfo"
2754     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2755     check_type netinet/in.h "struct sockaddr_in6"
2756     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2757     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2758     # Prefer arpa/inet.h over winsock2
2759     if check_header arpa/inet.h ; then
2760         check_func closesocket
2761     elif check_header winsock2.h ; then
2762         check_func_headers winsock2.h closesocket -lws2 && \
2763             network_extralibs="-lws2" || \
2764         { check_func_headers winsock2.h closesocket -lws2_32 && \
2765             network_extralibs="-lws2_32"; }
2766         check_type ws2tcpip.h socklen_t
2767         check_type ws2tcpip.h "struct addrinfo"
2768         check_type ws2tcpip.h "struct ipv6_mreq"
2769         check_type ws2tcpip.h "struct sockaddr_in6"
2770         check_type ws2tcpip.h "struct sockaddr_storage"
2771         check_struct winsock2.h "struct sockaddr" sa_len
2772     else
2773         disable network
2774     fi
2775 fi
2776
2777 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2778 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2779
2780 check_func  fcntl
2781 check_func  fork
2782 check_func  getaddrinfo $network_extralibs
2783 check_func  gethrtime
2784 check_func  getrusage
2785 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2786 check_func  inet_aton $network_extralibs
2787 check_func  isatty
2788 check_func  localtime_r
2789 check_func  ${malloc_prefix}memalign            && enable memalign
2790 check_func  mkstemp
2791 check_func  mmap
2792 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2793 check_func  setrlimit
2794 check_func  strerror_r
2795 check_func  strtok_r
2796 check_func_headers conio.h kbhit
2797 check_func_headers io.h setmode
2798 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2799 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2800 check_func_headers windows.h GetProcessTimes
2801 check_func_headers windows.h MapViewOfFile
2802 check_func_headers windows.h VirtualAlloc
2803
2804 check_header dlfcn.h
2805 check_header dxva2api.h
2806 check_header libcrystalhd/libcrystalhd_if.h
2807 check_header malloc.h
2808 check_header poll.h
2809 check_header sys/mman.h
2810 check_header sys/resource.h
2811 check_header sys/select.h
2812 check_header vdpau/vdpau.h
2813 check_header vdpau/vdpau_x11.h
2814 check_header X11/extensions/XvMClib.h
2815
2816 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2817
2818 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2819      enabled_any $need_memalign ; then
2820     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2821 fi
2822
2823 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2824 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2825
2826 # check for some common methods of building with pthread support
2827 # do this before the optional library checks as some of them require pthreads
2828 if ! disabled pthreads && ! enabled w32threads; then
2829     enable pthreads
2830     if check_func pthread_create; then
2831         :
2832     elif check_func pthread_create -pthread; then
2833         add_cflags -pthread
2834         add_extralibs -pthread
2835     elif check_func pthread_create -pthreads; then
2836         add_cflags -pthreads
2837         add_extralibs -pthreads
2838     elif check_func pthread_create -lpthreadGC2; then
2839         add_extralibs -lpthreadGC2
2840     elif ! check_lib pthread.h pthread_create -lpthread; then
2841         disable pthreads
2842     fi
2843 fi
2844
2845 for thread in $THREADS_LIST; do
2846     if enabled $thread; then
2847         test -n "$thread_type" &&
2848             die "ERROR: Only one thread type must be selected." ||
2849             thread_type="$thread"
2850     fi
2851 done
2852
2853 check_lib math.h sin -lm
2854 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsGetVersion -lcrystalhd
2855 disabled vaapi || check_lib va/va.h vaInitialize -lva
2856
2857 check_mathfunc exp2
2858 check_mathfunc exp2f
2859 check_mathfunc llrint
2860 check_mathfunc llrintf
2861 check_mathfunc log2
2862 check_mathfunc log2f
2863 check_mathfunc lrint
2864 check_mathfunc lrintf
2865 check_mathfunc round
2866 check_mathfunc roundf
2867 check_mathfunc truncf
2868
2869 # these are off by default, so fail if requested and not available
2870 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2871 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2872 enabled libdirac   && require_pkg_config dirac                          \
2873     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2874     "dirac_decoder_init dirac_encoder_init"
2875 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2876 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2877 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2878 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2879 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2880 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2881 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2882 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2883 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2884 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2885 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2886 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2887 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2888 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2889 enabled libvpx     && {
2890     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2891                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2892     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2893                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2894 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2895                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2896                         die "ERROR: libx264 version must be >= 0.99."; }
2897 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2898 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2899 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2900
2901 # libdc1394 check
2902 if enabled libdc1394; then
2903     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2904         enable libdc1394_2; } ||
2905     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2906         enable libdc1394_1; } ||
2907     die "ERROR: No version of libdc1394 found "
2908 fi
2909
2910 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2911     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2912     enable sdl &&
2913     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2914 fi
2915
2916 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2917
2918 check_header linux/fb.h
2919 check_header linux/videodev.h
2920 check_header linux/videodev2.h
2921 check_header sys/videoio.h
2922
2923 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2924 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2925 # w32api 3.12 had it defined wrong
2926 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2927
2928 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2929 { check_header dev/bktr/ioctl_meteor.h &&
2930   check_header dev/bktr/ioctl_bt848.h; } ||
2931 { check_header machine/ioctl_meteor.h &&
2932   check_header machine/ioctl_bt848.h; } ||
2933 { check_header dev/video/meteor/ioctl_meteor.h &&
2934   check_header dev/video/bktr/ioctl_bt848.h; } ||
2935 check_header dev/ic/bt8xx.h
2936
2937 check_header sys/soundcard.h
2938 check_header soundcard.h
2939
2940 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2941
2942 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2943
2944 enabled x11grab                         &&
2945 check_header X11/Xlib.h                 &&
2946 check_header X11/extensions/XShm.h      &&
2947 check_header X11/extensions/Xfixes.h    &&
2948 check_func XOpenDisplay -lX11           &&
2949 check_func XShmCreateImage -lX11 -lXext &&
2950 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2951
2952 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2953 check_cpp_condition \
2954     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2955     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2956       disable vdpau; }
2957 fi
2958
2959 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2960
2961 # add some useful compiler flags if supported
2962 check_cflags -Wdeclaration-after-statement
2963 check_cflags -Wall
2964 check_cflags -Wno-parentheses
2965 check_cflags -Wno-switch
2966 check_cflags -Wdisabled-optimization
2967 check_cflags -Wpointer-arith
2968 check_cflags -Wredundant-decls
2969 check_cflags -Wno-pointer-sign
2970 check_cflags -Wcast-qual
2971 check_cflags -Wwrite-strings
2972 check_cflags -Wtype-limits
2973 check_cflags -Wundef
2974 check_cflags -Wmissing-prototypes
2975 enabled extra_warnings && check_cflags -Winline
2976
2977 # add some linker flags
2978 check_ldflags -Wl,--warn-common
2979 check_ldflags -Wl,--as-needed
2980 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'
2981 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2982
2983 echo "X{};" > $TMPV
2984 if test_ldflags -Wl,--version-script,$TMPV; then
2985     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2986     check_cc <<EOF && enable symver_asm_label
2987 void ff_foo(void) __asm__ ("av_foo@VERSION");
2988 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2989 EOF
2990     check_cc <<EOF && enable symver_gnu_asm
2991 __asm__(".symver ff_foo,av_foo@VERSION");
2992 void ff_foo(void) {}
2993 EOF
2994 fi
2995
2996 if enabled small; then
2997     add_cflags $size_cflags
2998     optimizations="small"
2999 elif enabled optimizations; then
3000     add_cflags $speed_cflags
3001 else
3002     add_cflags $noopt_cflags
3003 fi
3004 check_cflags -fno-math-errno
3005 check_cflags -fno-signed-zeros
3006
3007 if enabled icc; then
3008     # Just warnings, no remarks
3009     check_cflags -w1
3010     # -wd: Disable following warnings
3011     # 144, 167, 556: -Wno-pointer-sign
3012     # 1292: attribute "foo" ignored
3013     # 10006: ignoring unknown option -fno-signed-zeros
3014     # 10148: ignoring unknown option -Wno-parentheses
3015     # 10156: ignoring option '-W'; no argument required
3016     check_cflags -wd144,167,556,1292,10006,10148,10156
3017     # 11030: Warning unknown option --as-needed
3018     # 10156: ignoring option '-export'; no argument required
3019     check_ldflags -wd10156,11030
3020     # Allow to compile with optimizations
3021     check_ldflags -march=$cpu
3022     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3023     enable ebp_available
3024     if enabled x86_32; then
3025         test ${icc_version%%.*} -ge 11 && \
3026             check_cflags -falign-stack=maintain-16-byte || \
3027             disable aligned_stack
3028     fi
3029 elif enabled ccc; then
3030     # disable some annoying warnings
3031     add_cflags -msg_disable cvtu32to64
3032     add_cflags -msg_disable embedcomment
3033     add_cflags -msg_disable needconstext
3034     add_cflags -msg_disable nomainieee
3035     add_cflags -msg_disable ptrmismatch1
3036     add_cflags -msg_disable unreachcode
3037 elif enabled gcc; then
3038     check_cflags -fno-tree-vectorize
3039     check_cflags -Werror=implicit-function-declaration
3040     check_cflags -Werror=missing-prototypes
3041 elif enabled llvm_gcc; then
3042     check_cflags -mllvm -stack-alignment=16
3043 elif enabled clang; then
3044     check_cflags -mllvm -stack-alignment=16
3045     check_cflags -Qunused-arguments
3046 elif enabled armcc; then
3047     # 2523: use of inline assembler is deprecated
3048     add_cflags -W${armcc_opt},--diag_suppress=2523
3049     add_cflags -W${armcc_opt},--diag_suppress=1207
3050     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3051     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3052 elif enabled tms470; then
3053     add_cflags -pds=824 -pds=837
3054 elif enabled pathscale; then
3055     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3056 fi
3057
3058 enabled_any $THREADS_LIST      && enable threads
3059
3060 check_deps $CONFIG_LIST       \
3061            $CONFIG_EXTRA      \
3062            $HAVE_LIST         \
3063            $DECODER_LIST      \
3064            $ENCODER_LIST      \
3065            $HWACCEL_LIST      \
3066            $PARSER_LIST       \
3067            $BSF_LIST          \
3068            $DEMUXER_LIST      \
3069            $MUXER_LIST        \
3070            $FILTER_LIST       \
3071            $INDEV_LIST        \
3072            $OUTDEV_LIST       \
3073            $PROTOCOL_LIST     \
3074            $ACODEC_TESTS      \
3075            $VCODEC_TESTS      \
3076            $LAVF_TESTS        \
3077            $LAVFI_TESTS       \
3078            $SEEK_TESTS        \
3079
3080 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3081
3082 echo "install prefix            $prefix"
3083 echo "source path               $source_path"
3084 echo "C compiler                $cc"
3085 echo "ARCH                      $arch ($cpu)"
3086 if test "$build_suffix" != ""; then
3087     echo "build suffix              $build_suffix"
3088 fi
3089 if test "$extra_version" != ""; then
3090     echo "version string suffix     $extra_version"
3091 fi
3092 echo "big-endian                ${bigendian-no}"
3093 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3094 if enabled x86; then
3095     echo "yasm                      ${yasm-no}"
3096     echo "MMX enabled               ${mmx-no}"
3097     echo "MMX2 enabled              ${mmx2-no}"
3098     echo "3DNow! enabled            ${amd3dnow-no}"
3099     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3100     echo "SSE enabled               ${sse-no}"
3101     echo "SSSE3 enabled             ${ssse3-no}"
3102     echo "CMOV enabled              ${cmov-no}"
3103     echo "CMOV is fast              ${fast_cmov-no}"
3104     echo "EBX available             ${ebx_available-no}"
3105     echo "EBP available             ${ebp_available-no}"
3106     echo "10 operands supported     ${ten_operands-no}"
3107 fi
3108 if enabled arm; then
3109     echo "ARMv5TE enabled           ${armv5te-no}"
3110     echo "ARMv6 enabled             ${armv6-no}"
3111     echo "ARMv6T2 enabled           ${armv6t2-no}"
3112     echo "ARM VFP enabled           ${armvfp-no}"
3113     echo "IWMMXT enabled            ${iwmmxt-no}"
3114     echo "NEON enabled              ${neon-no}"
3115 fi
3116 if enabled mips; then
3117     echo "MMI enabled               ${mmi-no}"
3118 fi
3119 if enabled ppc; then
3120     echo "AltiVec enabled           ${altivec-no}"
3121     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3122     echo "dcbzl available           ${dcbzl-no}"
3123 fi
3124 if enabled sparc; then
3125     echo "VIS enabled               ${vis-no}"
3126 fi
3127 echo "debug symbols             ${debug-no}"
3128 echo "strip symbols             ${stripping-no}"
3129 echo "optimizations             ${optimizations-no}"
3130 echo "static                    ${static-no}"
3131 echo "shared                    ${shared-no}"
3132 echo "postprocessing support    ${postproc-no}"
3133 echo "new filter support        ${avfilter-no}"
3134 echo "network support           ${network-no}"
3135 echo "threading support         ${thread_type-no}"
3136 echo "SDL support               ${sdl-no}"
3137 echo "Sun medialib support      ${mlib-no}"
3138 echo "AVISynth enabled          ${avisynth-no}"
3139 echo "frei0r enabled            ${frei0r-no}"
3140 echo "libdc1394 support         ${libdc1394-no}"
3141 echo "libdirac enabled          ${libdirac-no}"
3142 echo "libfaac enabled           ${libfaac-no}"
3143 echo "libgsm enabled            ${libgsm-no}"
3144 echo "libmp3lame enabled        ${libmp3lame-no}"
3145 echo "libnut enabled            ${libnut-no}"
3146 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3147 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3148 echo "libopencv support         ${libopencv-no}"
3149 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3150 echo "librtmp enabled           ${librtmp-no}"
3151 echo "libschroedinger enabled   ${libschroedinger-no}"
3152 echo "libspeex enabled          ${libspeex-no}"
3153 echo "libtheora enabled         ${libtheora-no}"
3154 echo "libvorbis enabled         ${libvorbis-no}"
3155 echo "libvpx enabled            ${libvpx-no}"
3156 echo "libx264 enabled           ${libx264-no}"
3157 echo "libxavs enabled           ${libxavs-no}"
3158 echo "libxvid enabled           ${libxvid-no}"
3159 echo "zlib enabled              ${zlib-no}"
3160 echo "bzlib enabled             ${bzlib-no}"
3161 echo
3162
3163 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3164     echo "Enabled ${type}s:"
3165     eval list=\$$(toupper $type)_LIST
3166     print_enabled '_*' $list | sort | pr -r -3 -t
3167     echo
3168 done
3169
3170 license="LGPL version 2.1 or later"
3171 if enabled nonfree; then
3172     license="nonfree and unredistributable"
3173 elif enabled gplv3; then
3174     license="GPL version 3 or later"
3175 elif enabled lgplv3; then
3176     license="LGPL version 3 or later"
3177 elif enabled gpl; then
3178     license="GPL version 2 or later"
3179 fi
3180
3181 echo "License: $license"
3182
3183 echo "Creating config.mak and config.h..."
3184
3185 # build tree in object directory if source path is different from current one
3186 if enabled source_path_used; then
3187     DIRS="
3188         doc
3189         libavcodec
3190         libavcodec/$arch
3191         libavdevice
3192         libavfilter
3193         libavfilter/$arch
3194         libavfilter/libmpcodecs
3195         libavfilter/libmpcodecs/libvo
3196         libavformat
3197         libavutil
3198         libavutil/$arch
3199         libpostproc
3200         libswscale
3201         libswscale/$arch
3202         tests
3203         tools
3204     "
3205     FILES="
3206         Makefile
3207         common.mak
3208         subdir.mak
3209         doc/texi2pod.pl
3210         libavcodec/Makefile
3211         libavcodec/${arch}/Makefile
3212         libavdevice/Makefile
3213         libavfilter/Makefile
3214         libavfilter/${arch}/Makefile
3215         libavformat/Makefile
3216         libavutil/Makefile
3217         libpostproc/Makefile
3218         libswscale/Makefile
3219     "
3220     map 'mkdir -p $v' $DIRS;
3221     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3222 fi
3223
3224 enabled stripping || strip="echo skipping strip"
3225
3226 config_files="$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=$ranlib
3253 CP=cp -p
3254 LN_S=$ln_s
3255 STRIP=$strip
3256 CPPFLAGS=$CPPFLAGS
3257 CFLAGS=$CFLAGS
3258 ASFLAGS=$ASFLAGS
3259 CC_O=$CC_O
3260 DLLTOOL=$dlltool
3261 LDFLAGS=$LDFLAGS
3262 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3263 SHFLAGS=$SHFLAGS
3264 YASMFLAGS=$YASMFLAGS
3265 BUILDSUF=$build_suffix
3266 FULLNAME=$FULLNAME
3267 LIBPREF=$LIBPREF
3268 LIBSUF=$LIBSUF
3269 LIBNAME=$LIBNAME
3270 SLIBPREF=$SLIBPREF
3271 SLIBSUF=$SLIBSUF
3272 EXESUF=$EXESUF
3273 EXTRA_VERSION=$extra_version
3274 DEPFLAGS=$DEPFLAGS
3275 CCDEP=$CCDEP
3276 ASDEP=$ASDEP
3277 CC_DEPFLAGS=$CC_DEPFLAGS
3278 AS_DEPFLAGS=$AS_DEPFLAGS
3279 HOSTCC=$host_cc
3280 HOSTCFLAGS=$host_cflags
3281 HOSTEXESUF=$HOSTEXESUF
3282 HOSTLDFLAGS=$host_ldflags
3283 HOSTLIBS=$host_libs
3284 TARGET_EXEC=$target_exec
3285 TARGET_PATH=$target_path
3286 SDL_LIBS=$sdl_libs
3287 SDL_CFLAGS=$sdl_cflags
3288 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3289 EXTRALIBS=$extralibs
3290 INSTALL=install
3291 LIBTARGET=${LIBTARGET}
3292 SLIBNAME=${SLIBNAME}
3293 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3294 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3295 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3296 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3297 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3298 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3299 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3300 EOF
3301
3302 get_version(){
3303     name=$1
3304     file=$source_path/$2
3305     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3306     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3307     lcname=$(tolower $name)
3308     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3309     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3310 }
3311
3312 get_version LIBSWSCALE  libswscale/swscale.h
3313 get_version LIBPOSTPROC libpostproc/postprocess.h
3314 get_version LIBAVCODEC  libavcodec/version.h
3315 get_version LIBAVDEVICE libavdevice/avdevice.h
3316 get_version LIBAVFORMAT libavformat/version.h
3317 get_version LIBAVUTIL   libavutil/avutil.h
3318 get_version LIBAVFILTER libavfilter/avfilter.h
3319
3320 cat > $TMPH <<EOF
3321 /* Automatically generated by configure - do not modify! */
3322 #ifndef FFMPEG_CONFIG_H
3323 #define FFMPEG_CONFIG_H
3324 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3325 #define FFMPEG_LICENSE "$(c_escape $license)"
3326 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3327 #define CC_TYPE "$cc_type"
3328 #define CC_VERSION $cc_version
3329 #define restrict $_restrict
3330 #define EXTERN_PREFIX "${extern_prefix}"
3331 #define EXTERN_ASM ${extern_prefix}
3332 #define SLIBSUF "$SLIBSUF"
3333 EOF
3334
3335 test -n "$malloc_prefix" &&
3336     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3337
3338 if enabled small || disabled optimizations; then
3339     echo "#undef  av_always_inline"  >> $TMPH
3340     if enabled small; then
3341         echo "#define av_always_inline inline"  >> $TMPH
3342     else
3343         echo "#define av_always_inline av_unused"  >> $TMPH
3344     fi
3345 fi
3346
3347 if enabled yasm; then
3348     append config_files $TMPASM
3349     printf '' >$TMPASM
3350 fi
3351
3352 print_config ARCH_   "$config_files" $ARCH_LIST
3353 print_config HAVE_   "$config_files" $HAVE_LIST
3354 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3355                                      $CONFIG_EXTRA      \
3356                                      $DECODER_LIST      \
3357                                      $ENCODER_LIST      \
3358                                      $HWACCEL_LIST      \
3359                                      $PARSER_LIST       \
3360                                      $BSF_LIST          \
3361                                      $DEMUXER_LIST      \
3362                                      $MUXER_LIST        \
3363                                      $FILTER_LIST       \
3364                                      $PROTOCOL_LIST     \
3365                                      $INDEV_LIST        \
3366                                      $OUTDEV_LIST       \
3367
3368 cat >>config.mak <<EOF
3369 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3370 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3371 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3372 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3373 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3374 EOF
3375
3376 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3377 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3378
3379 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3380 cp_if_changed $TMPH config.h
3381 touch .config
3382
3383 enabled yasm && cp_if_changed $TMPASM config.asm
3384
3385 cat > $TMPH <<EOF
3386 /* Generated by ffconf */
3387 #ifndef AVUTIL_AVCONFIG_H
3388 #define AVUTIL_AVCONFIG_H
3389 EOF
3390
3391 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3392
3393 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3394
3395 cp_if_changed $TMPH libavutil/avconfig.h
3396
3397 test -n "$WARNINGS" && printf "\n$WARNINGS"
3398
3399 # build pkg-config files
3400
3401 pkgconfig_generate(){
3402 name=$1
3403 shortname=${name#lib}${build_suffix}
3404 comment=$2
3405 version=$3
3406 libs=$4
3407 requires=$5
3408 enabled ${name#lib} || return 0
3409 cat <<EOF > $name/$name.pc
3410 prefix=$prefix
3411 exec_prefix=\${prefix}
3412 libdir=$libdir
3413 includedir=$incdir
3414
3415 Name: $name
3416 Description: $comment
3417 Version: $version
3418 Requires: $(enabled shared || echo $requires)
3419 Requires.private: $(enabled shared && echo $requires)
3420 Conflicts:
3421 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3422 Libs.private: $(enabled shared && echo $libs)
3423 Cflags: -I\${includedir}
3424 EOF
3425 cat <<EOF > $name/$name-uninstalled.pc
3426 prefix=
3427 exec_prefix=
3428 libdir=\${pcfiledir}
3429 includedir=${source_path}
3430
3431 Name: $name
3432 Description: $comment
3433 Version: $version
3434 Requires: $requires
3435 Conflicts:
3436 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3437 Cflags: -I\${includedir}
3438 EOF
3439 }
3440
3441 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3442 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3443 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3444 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3445 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3446 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3447 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"