vaapi: disable if check_lib failed.
[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@ffmpeg.org 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 $libs $extralibs
646 }
647
648 check_cppflags(){
649     log check_cppflags "$@"
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     sndio_h
1102     socklen_t
1103     soundcard_h
1104     poll_h
1105     setrlimit
1106     strerror_r
1107     strtok_r
1108     struct_addrinfo
1109     struct_ipv6_mreq
1110     struct_sockaddr_in6
1111     struct_sockaddr_sa_len
1112     struct_sockaddr_storage
1113     symver
1114     symver_gnu_asm
1115     symver_asm_label
1116     sys_mman_h
1117     sys_resource_h
1118     sys_select_h
1119     sys_soundcard_h
1120     sys_videoio_h
1121     ten_operands
1122     threads
1123     truncf
1124     vfp_args
1125     VirtualAlloc
1126     winsock2_h
1127     xform_asm
1128     xmm_clobbers
1129     yasm
1130 "
1131
1132 # options emitted with CONFIG_ prefix but not available on command line
1133 CONFIG_EXTRA="
1134     avutil
1135     gplv3
1136     lgplv3
1137 "
1138
1139 CMDLINE_SELECT="
1140     $ARCH_EXT_LIST
1141     $CONFIG_LIST
1142     $THREADS_LIST
1143     asm
1144     cross_compile
1145     debug
1146     extra_warnings
1147     logging
1148     optimizations
1149     stripping
1150     symver
1151     yasm
1152 "
1153
1154 PATHS_LIST='
1155     bindir
1156     datadir
1157     incdir
1158     libdir
1159     mandir
1160     prefix
1161     shlibdir
1162 '
1163
1164 CMDLINE_SET="
1165     $PATHS_LIST
1166     ar
1167     arch
1168     as
1169     build_suffix
1170     cc
1171     cpu
1172     cross_prefix
1173     dep_cc
1174     extra_version
1175     host_cc
1176     host_cflags
1177     host_ldflags
1178     host_libs
1179     host_os
1180     ld
1181     logfile
1182     malloc_prefix
1183     nm
1184     pkg_config
1185     samples
1186     source_path
1187     strip
1188     sysinclude
1189     sysroot
1190     target_exec
1191     target_os
1192     target_path
1193 "
1194
1195 CMDLINE_APPEND="
1196     extra_cflags
1197 "
1198
1199 # code dependency declarations
1200
1201 # architecture extensions
1202
1203 armv5te_deps="arm"
1204 armv6_deps="arm"
1205 armv6t2_deps="arm"
1206 armvfp_deps="arm"
1207 iwmmxt_deps="arm"
1208 neon_deps="arm"
1209
1210 mmi_deps="mips"
1211
1212 altivec_deps="ppc"
1213 ppc4xx_deps="ppc"
1214
1215 vis_deps="sparc"
1216
1217 x86_64_suggest="cmov fast_cmov"
1218 amd3dnow_deps="mmx"
1219 amd3dnowext_deps="amd3dnow"
1220 mmx_deps="x86"
1221 mmx2_deps="mmx"
1222 sse_deps="mmx"
1223 ssse3_deps="sse"
1224 avx_deps="ssse3"
1225
1226 aligned_stack_if_any="ppc x86"
1227 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1228 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1229 fast_unaligned_if_any="armv6 ppc x86"
1230
1231 need_memalign="altivec neon sse"
1232 inline_asm_deps="!tms470"
1233
1234 symver_if_any="symver_asm_label symver_gnu_asm"
1235
1236 # subsystems
1237 dct_select="rdft"
1238 mdct_select="fft"
1239 rdft_select="fft"
1240
1241 # decoders / encoders / hardware accelerators
1242 aac_decoder_select="mdct rdft sinewin"
1243 aac_encoder_select="mdct sinewin"
1244 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1245 ac3_decoder_select="mdct ac3_parser"
1246 ac3_encoder_select="mdct ac3dsp"
1247 ac3_fixed_encoder_select="ac3dsp"
1248 alac_encoder_select="lpc"
1249 amrnb_decoder_select="lsp"
1250 amrwb_decoder_select="lsp"
1251 atrac1_decoder_select="mdct sinewin"
1252 atrac3_decoder_select="mdct"
1253 binkaudio_dct_decoder_select="mdct rdft dct"
1254 binkaudio_rdft_decoder_select="mdct rdft"
1255 cavs_decoder_select="golomb"
1256 cook_decoder_select="mdct sinewin"
1257 cscd_decoder_suggest="zlib"
1258 dca_decoder_select="mdct"
1259 dnxhd_encoder_select="aandct"
1260 dxa_decoder_select="zlib"
1261 eac3_decoder_select="ac3_decoder"
1262 eamad_decoder_select="aandct"
1263 eatgq_decoder_select="aandct"
1264 eatqi_decoder_select="aandct"
1265 ffv1_decoder_select="golomb"
1266 flac_decoder_select="golomb"
1267 flac_encoder_select="golomb lpc"
1268 flashsv_decoder_select="zlib"
1269 flashsv_encoder_select="zlib"
1270 flv_decoder_select="h263_decoder"
1271 flv_encoder_select="h263_encoder"
1272 fraps_decoder_select="huffman"
1273 h261_encoder_select="aandct"
1274 h263_decoder_select="h263_parser"
1275 h263_encoder_select="aandct"
1276 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1277 h263i_decoder_select="h263_decoder"
1278 h263p_encoder_select="h263_encoder"
1279 h264_decoder_select="golomb h264dsp h264pred"
1280 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1281 h264_dxva2_hwaccel_deps="dxva2api_h"
1282 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1283 h264_vaapi_hwaccel_select="vaapi"
1284 h264_vdpau_decoder_select="vdpau h264_decoder"
1285 imc_decoder_select="fft mdct"
1286 jpegls_decoder_select="golomb"
1287 jpegls_encoder_select="golomb"
1288 ljpeg_encoder_select="aandct"
1289 loco_decoder_select="golomb"
1290 mjpeg_encoder_select="aandct"
1291 mlp_decoder_select="mlp_parser"
1292 mp1float_decoder_select="dct"
1293 mp2float_decoder_select="dct"
1294 mp3adufloat_decoder_select="dct"
1295 mp3float_decoder_select="dct"
1296 mp3on4float_decoder_select="dct"
1297 mpeg1video_encoder_select="aandct"
1298 mpeg2video_encoder_select="aandct"
1299 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1300 mpeg4_encoder_select="h263_encoder"
1301 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1302 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1303 mpeg2_crystalhd_decoder_select="crystalhd"
1304 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1305 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1306 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1307 mpeg4_crystalhd_decoder_select="crystalhd"
1308 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1309 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1310 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1311 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1312 msmpeg4_crystalhd_decoder_select="crystalhd"
1313 msmpeg4v1_decoder_select="h263_decoder"
1314 msmpeg4v1_encoder_select="h263_encoder"
1315 msmpeg4v2_decoder_select="h263_decoder"
1316 msmpeg4v2_encoder_select="h263_encoder"
1317 msmpeg4v3_decoder_select="h263_decoder"
1318 msmpeg4v3_encoder_select="h263_encoder"
1319 nellymoser_decoder_select="mdct sinewin"
1320 nellymoser_encoder_select="mdct sinewin"
1321 png_decoder_select="zlib"
1322 png_encoder_select="zlib"
1323 qcelp_decoder_select="lsp"
1324 qdm2_decoder_select="mdct rdft"
1325 ra_144_encoder_select="lpc"
1326 rv10_decoder_select="h263_decoder"
1327 rv10_encoder_select="h263_encoder"
1328 rv20_decoder_select="h263_decoder"
1329 rv20_encoder_select="h263_encoder"
1330 rv30_decoder_select="golomb h264pred"
1331 rv40_decoder_select="golomb h264pred"
1332 shorten_decoder_select="golomb"
1333 sipr_decoder_select="lsp"
1334 snow_decoder_select="dwt"
1335 snow_encoder_select="aandct dwt"
1336 sonic_decoder_select="golomb"
1337 sonic_encoder_select="golomb"
1338 sonic_ls_encoder_select="golomb"
1339 svq1_encoder_select="aandct"
1340 svq3_decoder_select="golomb h264dsp h264pred"
1341 svq3_decoder_suggest="zlib"
1342 theora_decoder_select="vp3_decoder"
1343 tiff_decoder_suggest="zlib"
1344 tiff_encoder_suggest="zlib"
1345 truehd_decoder_select="mlp_decoder"
1346 tscc_decoder_select="zlib"
1347 twinvq_decoder_select="mdct lsp sinewin"
1348 vc1_decoder_select="h263_decoder"
1349 vc1_crystalhd_decoder_select="crystalhd"
1350 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1351 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1352 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1353 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1354 vorbis_decoder_select="mdct"
1355 vorbis_encoder_select="mdct"
1356 vp6_decoder_select="huffman"
1357 vp6a_decoder_select="vp6_decoder"
1358 vp6f_decoder_select="vp6_decoder"
1359 vp8_decoder_select="h264pred"
1360 wmapro_decoder_select="mdct sinewin"
1361 wmav1_decoder_select="mdct sinewin"
1362 wmav1_encoder_select="mdct sinewin"
1363 wmav2_decoder_select="mdct sinewin"
1364 wmav2_encoder_select="mdct sinewin"
1365 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1366 wmv1_decoder_select="h263_decoder"
1367 wmv1_encoder_select="h263_encoder"
1368 wmv2_decoder_select="h263_decoder"
1369 wmv2_encoder_select="h263_encoder"
1370 wmv3_decoder_select="vc1_decoder"
1371 wmv3_crystalhd_decoder_select="crystalhd"
1372 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1373 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1374 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1375 zlib_decoder_select="zlib"
1376 zlib_encoder_select="zlib"
1377 zmbv_decoder_select="zlib"
1378 zmbv_encoder_select="zlib"
1379
1380 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1381 vaapi_deps="va_va_h"
1382 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1383
1384 # parsers
1385 h264_parser_select="golomb h264dsp h264pred"
1386
1387 # external libraries
1388 libdirac_decoder_deps="libdirac !libschroedinger"
1389 libdirac_encoder_deps="libdirac"
1390 libfaac_encoder_deps="libfaac"
1391 libgsm_decoder_deps="libgsm"
1392 libgsm_encoder_deps="libgsm"
1393 libgsm_ms_decoder_deps="libgsm"
1394 libgsm_ms_encoder_deps="libgsm"
1395 libmp3lame_encoder_deps="libmp3lame"
1396 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1397 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1398 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1399 libopenjpeg_decoder_deps="libopenjpeg"
1400 libschroedinger_decoder_deps="libschroedinger"
1401 libschroedinger_encoder_deps="libschroedinger"
1402 libspeex_decoder_deps="libspeex"
1403 libtheora_encoder_deps="libtheora"
1404 libvorbis_encoder_deps="libvorbis"
1405 libvpx_decoder_deps="libvpx"
1406 libvpx_encoder_deps="libvpx"
1407 libx264_encoder_deps="libx264"
1408 libxavs_encoder_deps="libxavs"
1409 libxvid_encoder_deps="libxvid"
1410
1411 # demuxers / muxers
1412 ac3_demuxer_select="ac3_parser"
1413 asf_stream_muxer_select="asf_muxer"
1414 avisynth_demuxer_deps="avisynth"
1415 dirac_demuxer_select="dirac_parser"
1416 eac3_demuxer_select="ac3_parser"
1417 flac_demuxer_select="flac_parser"
1418 ipod_muxer_select="mov_muxer"
1419 libnut_demuxer_deps="libnut"
1420 libnut_muxer_deps="libnut"
1421 matroska_audio_muxer_select="matroska_muxer"
1422 matroska_demuxer_suggest="zlib bzlib"
1423 mov_demuxer_suggest="zlib"
1424 mp3_demuxer_select="mpegaudio_parser"
1425 mp4_muxer_select="mov_muxer"
1426 mpegtsraw_demuxer_select="mpegts_demuxer"
1427 mxf_d10_muxer_select="mxf_muxer"
1428 ogg_demuxer_select="golomb"
1429 psp_muxer_select="mov_muxer"
1430 rtp_demuxer_select="sdp_demuxer"
1431 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1432 rtsp_demuxer_select="http_protocol rtpdec"
1433 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1434 sap_demuxer_select="sdp_demuxer"
1435 sap_muxer_select="rtp_muxer rtp_protocol"
1436 sdp_demuxer_select="rtpdec"
1437 spdif_muxer_select="aac_parser"
1438 tg2_muxer_select="mov_muxer"
1439 tgp_muxer_select="mov_muxer"
1440 w64_demuxer_deps="wav_demuxer"
1441
1442 # indevs / outdevs
1443 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1444 alsa_outdev_deps="alsa_asoundlib_h"
1445 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1446 dv1394_indev_deps="dv1394 dv_demuxer"
1447 fbdev_indev_deps="linux_fb_h"
1448 jack_indev_deps="jack_jack_h"
1449 libdc1394_indev_deps="libdc1394"
1450 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1451 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1452 sndio_indev_deps="sndio_h"
1453 sndio_outdev_deps="sndio_h"
1454 v4l_indev_deps="linux_videodev_h"
1455 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1456 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1457 vfwcap_indev_extralibs="-lavicap32"
1458 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1459 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1460
1461 # protocols
1462 gopher_protocol_deps="network"
1463 http_protocol_deps="network"
1464 http_protocol_select="tcp_protocol"
1465 mmsh_protocol_select="http_protocol"
1466 mmst_protocol_deps="network"
1467 rtmp_protocol_select="tcp_protocol"
1468 rtp_protocol_select="udp_protocol"
1469 tcp_protocol_deps="network"
1470 udp_protocol_deps="network"
1471
1472 # filters
1473 blackframe_filter_deps="gpl"
1474 cropdetect_filter_deps="gpl"
1475 drawtext_filter_deps="libfreetype"
1476 frei0r_filter_deps="frei0r dlopen strtok_r"
1477 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1478 hqdn3d_filter_deps="gpl"
1479 mp_filter_deps="gpl"
1480 ocv_filter_deps="libopencv"
1481 scale_filter_deps="swscale"
1482 yadif_filter_deps="gpl"
1483
1484 # libraries
1485 avdevice_deps="avcodec avformat"
1486 avformat_deps="avcodec"
1487
1488 # programs
1489 ffmpeg_deps="avcodec avformat swscale"
1490 ffmpeg_select="buffer_filter"
1491 ffplay_deps="avcodec avformat swscale sdl"
1492 ffplay_select="rdft"
1493 ffprobe_deps="avcodec avformat"
1494 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1495 ffserver_extralibs='$ldl'
1496
1497 doc_deps="texi2html"
1498
1499 # tests
1500
1501 test_deps(){
1502     suf1=$1
1503     suf2=$2
1504     shift 2
1505     for v; do
1506         dep=${v%=*}
1507         tests=${v#*=}
1508         for name in ${tests}; do
1509             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1510         done
1511     done
1512 }
1513
1514 set_ne_test_deps(){
1515     eval ${1}_be_test_deps="bigendian"
1516     eval ${1}_le_test_deps="!bigendian"
1517 }
1518
1519 test_deps _encoder _decoder                                             \
1520     adpcm_g726=g726                                                     \
1521     adpcm_ima_qt                                                        \
1522     adpcm_ima_wav                                                       \
1523     adpcm_ms                                                            \
1524     adpcm_swf                                                           \
1525     adpcm_yamaha=adpcm_yam                                              \
1526     alac                                                                \
1527     asv1                                                                \
1528     asv2                                                                \
1529     bmp                                                                 \
1530     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1531     dvvideo="dv dv50"                                                   \
1532     ffv1                                                                \
1533     flac                                                                \
1534     flashsv                                                             \
1535     flv                                                                 \
1536     gif                                                                 \
1537     h261                                                                \
1538     h263="h263 h263p"                                                   \
1539     huffyuv                                                             \
1540     jpegls                                                              \
1541     mjpeg="jpg mjpeg ljpeg"                                             \
1542     mp2                                                                 \
1543     mpeg1video="mpeg mpeg1b"                                            \
1544     mpeg2video="mpeg2 mpeg2thread"                                      \
1545     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1546     msmpeg4v3=msmpeg4                                                   \
1547     msmpeg4v2                                                           \
1548     pbm=pbmpipe                                                         \
1549     pcx                                                                 \
1550     pgm="pgm pgmpipe"                                                   \
1551     png                                                                 \
1552     ppm="ppm ppmpipe"                                                   \
1553     rawvideo="rgb yuv"                                                  \
1554     roq                                                                 \
1555     rv10                                                                \
1556     rv20                                                                \
1557     sgi                                                                 \
1558     snow="snow snowll"                                                  \
1559     svq1                                                                \
1560     targa=tga                                                           \
1561     tiff                                                                \
1562     wmav1                                                               \
1563     wmav2                                                               \
1564     wmv1                                                                \
1565     wmv2                                                                \
1566
1567 test_deps _muxer _demuxer                                               \
1568     aiff                                                                \
1569     pcm_alaw=alaw                                                       \
1570     asf                                                                 \
1571     au                                                                  \
1572     avi                                                                 \
1573     dv=dv_fmt                                                           \
1574     ffm                                                                 \
1575     flv=flv_fmt                                                         \
1576     gxf                                                                 \
1577     matroska=mkv                                                        \
1578     mmf                                                                 \
1579     mov                                                                 \
1580     pcm_mulaw=mulaw                                                     \
1581     mxf                                                                 \
1582     nut                                                                 \
1583     ogg                                                                 \
1584     rawvideo=pixfmt                                                     \
1585     rm                                                                  \
1586     swf                                                                 \
1587     mpegts=ts                                                           \
1588     voc                                                                 \
1589     wav                                                                 \
1590     yuv4mpegpipe=yuv4mpeg                                               \
1591
1592 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1593 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1594
1595 set_ne_test_deps pixdesc
1596 set_ne_test_deps pixfmts_copy
1597 set_ne_test_deps pixfmts_crop
1598 set_ne_test_deps pixfmts_hflip
1599 set_ne_test_deps pixfmts_null
1600 set_ne_test_deps pixfmts_pad
1601 set_ne_test_deps pixfmts_scale
1602 set_ne_test_deps pixfmts_vflip
1603
1604 # default parameters
1605
1606 logfile="config.log"
1607
1608 # installation paths
1609 prefix_default="/usr/local"
1610 bindir_default='${prefix}/bin'
1611 datadir_default='${prefix}/share/ffmpeg'
1612 incdir_default='${prefix}/include'
1613 libdir_default='${prefix}/lib'
1614 mandir_default='${prefix}/share/man'
1615 shlibdir_default="$libdir_default"
1616
1617 # toolchain
1618 ar_default="ar"
1619 cc_default="gcc"
1620 cc_version=\"unknown\"
1621 host_cc_default="gcc"
1622 ln_s="ln -sf"
1623 nm_default="nm"
1624 objformat="elf"
1625 pkg_config_default=pkg-config
1626 ranlib="ranlib"
1627 strip_default="strip"
1628 yasmexe="yasm"
1629 nogas=":"
1630
1631 nm_opts='-g'
1632
1633 # machine
1634 arch_default=$(uname -m)
1635 cpu="generic"
1636
1637 # OS
1638 target_os_default=$(tolower $(uname -s))
1639 host_os=$target_os_default
1640
1641 # configurable options
1642 enable avcodec
1643 enable avdevice
1644 enable avfilter
1645 enable avformat
1646 enable avutil
1647 enable asm
1648 enable debug
1649 enable doc
1650 enable fastdiv
1651 enable ffmpeg
1652 enable ffplay
1653 enable ffprobe
1654 enable ffserver
1655 enable mpegaudio_hp
1656 enable network
1657 enable optimizations
1658 enable protocols
1659 enable static
1660 enable stripping
1661 enable swscale
1662 enable swscale_alpha
1663
1664 # build settings
1665 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1666 FFSERVERLDFLAGS=-Wl,-E
1667 LIBPREF="lib"
1668 LIBSUF=".a"
1669 FULLNAME='$(NAME)$(BUILDSUF)'
1670 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1671 SLIBPREF="lib"
1672 SLIBSUF=".so"
1673 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1674 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1675 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1676 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1677
1678 CC_O='-o $@'
1679
1680 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1681 host_libs='-lm'
1682
1683 target_path='$(CURDIR)'
1684
1685 # since the object filename is not given with the -MM flag, the compiler
1686 # is only able to print the basename, and we must add the path ourselves
1687 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1688 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1689
1690 # find source path
1691 source_path="$(dirname "$0")"
1692 enable source_path_used
1693 if test -f configure; then
1694     source_path="$(pwd)"
1695     disable source_path_used
1696 else
1697     source_path="$(cd "$source_path"; pwd)"
1698     echo "$source_path" | grep -q '[[:blank:]]' &&
1699         die "Out of tree builds are impossible with whitespace in source path."
1700     test -e "$source_path/config.h" &&
1701         die "Out of tree builds are impossible with config.h in source dir."
1702 fi
1703
1704 for v in "$@"; do
1705     r=${v#*=}
1706     l=${v%"$r"}
1707     r=$(sh_quote "$r")
1708     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1709 done
1710
1711 find_things(){
1712     thing=$1
1713     pattern=$2
1714     file=$source_path/$3
1715     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1716 }
1717
1718 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1719 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1720 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1721 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1722 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1723 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1724 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1725 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1726 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1727 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1728 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1729
1730 find_tests(){
1731     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1732 }
1733
1734 ACODEC_TESTS=$(find_tests acodec)
1735 VCODEC_TESTS=$(find_tests vsynth1)
1736 LAVF_TESTS=$(find_tests lavf)
1737 LAVFI_TESTS=$(find_tests lavfi)
1738 SEEK_TESTS=$(find_tests seek seek_)
1739
1740 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1741
1742 for n in $COMPONENT_LIST; do
1743     v=$(toupper ${n%s})_LIST
1744     eval enable \$$v
1745     eval ${n}_if_any="\$$v"
1746 done
1747
1748 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1749
1750 die_unknown(){
1751     echo "Unknown option \"$1\"."
1752     echo "See $0 --help for available options."
1753     exit 1
1754 }
1755
1756 show_list() {
1757     suffix=_$1
1758     shift
1759     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1760     exit 0
1761 }
1762
1763 for opt do
1764     optval="${opt#*=}"
1765     case "$opt" in
1766     --extra-ldflags=*) add_ldflags $optval
1767     ;;
1768     --extra-libs=*) add_extralibs $optval
1769     ;;
1770     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1771     ;;
1772     --enable-debug=*) debuglevel="$optval"
1773     ;;
1774     --disable-everything)
1775     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1776     ;;
1777     --enable-*=*|--disable-*=*)
1778     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1779     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1780     eval list=\$$(toupper $thing)_LIST
1781     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1782     $action $(filter "$name" $list)
1783     ;;
1784     --enable-?*|--disable-?*)
1785     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1786     if is_in $option $COMPONENT_LIST; then
1787         test $action = disable && action=unset
1788         eval $action \$$(toupper ${option%s})_LIST
1789     elif is_in $option $CMDLINE_SELECT; then
1790         $action $option
1791     else
1792         die_unknown $opt
1793     fi
1794     ;;
1795     --list-*)
1796         NAME="${opt#--list-}"
1797         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1798         NAME=${NAME%s}
1799         eval show_list $NAME \$$(toupper $NAME)_LIST
1800     ;;
1801     --help|-h) show_help
1802     ;;
1803     *)
1804     optname="${opt%%=*}"
1805     optname="${optname#--}"
1806     optname=$(echo "$optname" | sed 's/-/_/g')
1807     if is_in $optname $CMDLINE_SET; then
1808         eval $optname='$optval'
1809     elif is_in $optname $CMDLINE_APPEND; then
1810         append $optname "$optval"
1811     else
1812          die_unknown $opt
1813     fi
1814     ;;
1815     esac
1816 done
1817
1818 disabled logging && logfile=/dev/null
1819
1820 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1821 set >> $logfile
1822
1823 test -n "$cross_prefix" && enable cross_compile
1824
1825 if enabled cross_compile; then
1826     test -n "$arch" && test -n "$target_os" ||
1827         die "Must specify target arch and OS when cross-compiling"
1828 fi
1829
1830 set_default arch target_os
1831
1832 ar_default="${cross_prefix}${ar_default}"
1833 cc_default="${cross_prefix}${cc_default}"
1834 nm_default="${cross_prefix}${nm_default}"
1835 pkg_config_default="${cross_prefix}${pkg_config_default}"
1836 ranlib="${cross_prefix}${ranlib}"
1837 strip_default="${cross_prefix}${strip_default}"
1838
1839 sysinclude_default="${sysroot}/usr/include"
1840
1841 set_default cc nm pkg_config strip sysinclude
1842 enabled cross_compile || host_cc_default=$cc
1843 set_default host_cc
1844
1845 exesuf() {
1846     case $1 in
1847         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1848     esac
1849 }
1850
1851 EXESUF=$(exesuf $target_os)
1852 HOSTEXESUF=$(exesuf $host_os)
1853
1854 # set temporary file name
1855 : ${TMPDIR:=$TEMPDIR}
1856 : ${TMPDIR:=$TMP}
1857 : ${TMPDIR:=/tmp}
1858
1859 if ! check_cmd mktemp -u XXXXXX; then
1860     # simple replacement for missing mktemp
1861     # NOT SAFE FOR GENERAL USE
1862     mktemp(){
1863         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1864     }
1865 fi
1866
1867 tmpfile(){
1868     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1869         (set -C; exec > $tmp) 2>/dev/null ||
1870         die "Unable to create temporary file in $TMPDIR."
1871     append TMPFILES $tmp
1872     eval $1=$tmp
1873 }
1874
1875 trap 'rm -f -- $TMPFILES' EXIT
1876
1877 tmpfile TMPC  .c
1878 tmpfile TMPE  $EXESUF
1879 tmpfile TMPH  .h
1880 tmpfile TMPO  .o
1881 tmpfile TMPS  .S
1882 tmpfile TMPV  .ver
1883 tmpfile TMPSH .sh
1884 tmpfile TMPASM .asm
1885
1886 unset -f mktemp
1887
1888 chmod +x $TMPE
1889
1890 # make sure we can execute files in $TMPDIR
1891 cat > $TMPSH 2>> $logfile <<EOF
1892 #! /bin/sh
1893 EOF
1894 chmod +x $TMPSH >> $logfile 2>&1
1895 if ! $TMPSH >> $logfile 2>&1; then
1896     cat <<EOF
1897 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1898 variable to another directory and make sure that it is not mounted noexec.
1899 EOF
1900     die "Sanity test failed."
1901 fi
1902
1903 filter_cflags=echo
1904 filter_cppflags=echo
1905 filter_asflags=echo
1906
1907 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1908     cc_type=llvm_gcc
1909     cc_version=__VERSION__
1910     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1911     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1912     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1913     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1914     speed_cflags='-O3'
1915     size_cflags='-Os'
1916 elif $cc -v 2>&1 | grep -qi ^gcc; then
1917     cc_type=gcc
1918     cc_version=__VERSION__
1919     gcc_version=$($cc --version | head -n1)
1920     gcc_basever=$($cc -dumpversion)
1921     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1922     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1923     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1924     if ! $cc -dumpversion | grep -q '^2\.'; then
1925         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1926         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1927     fi
1928     speed_cflags='-O3'
1929     size_cflags='-Os'
1930 elif $cc --version 2>/dev/null | grep -q Intel; then
1931     cc_type=icc
1932     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1933     cc_ident=$($cc --version | head -n1)
1934     icc_version=$($cc -dumpversion)
1935     CC_DEPFLAGS='-MMD'
1936     AS_DEPFLAGS='-MMD'
1937     speed_cflags='-O3'
1938     size_cflags='-Os'
1939     noopt_cflags='-O1'
1940 elif $cc -v 2>&1 | grep -q xlc; then
1941     cc_type=xlc
1942     cc_version="AV_STRINGIFY(__IBMC__)"
1943     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1944     speed_cflags='-O5'
1945     size_cflags='-O5 -qcompact'
1946 elif $cc -V 2>/dev/null | grep -q Compaq; then
1947     cc_type=ccc
1948     cc_version="AV_STRINGIFY(__DECC_VER)"
1949     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1950     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1951     debuglevel=3
1952     add_ldflags -Wl,-z,now # calls to libots crash without this
1953     speed_cflags='-fast'
1954     size_cflags='-O1'
1955 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1956     test -d "$sysroot" || die "No valid sysroot specified."
1957     cc_type=armcc
1958     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1959     cc_ident=$($cc --vsn | head -n1)
1960     armcc_conf="$PWD/armcc.conf"
1961     $cc --arm_linux_configure                 \
1962         --arm_linux_config_file="$armcc_conf" \
1963         --configure_sysroot="$sysroot"        \
1964         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1965         die "Error creating armcc configuration file."
1966     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1967     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1968     as_default="${cross_prefix}gcc"
1969     CC_DEPFLAGS='-MMD'
1970     AS_DEPFLAGS='-MMD'
1971     speed_cflags='-O3'
1972     size_cflags='-Os'
1973     filter_asflags="filter_out -W${armcc_opt}*"
1974 elif $cc -version 2>/dev/null | grep -q TMS470; then
1975     cc_type=tms470
1976     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1977     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1978     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1979     CC_O='-fr=$(@D)'
1980     as_default="${cross_prefix}gcc"
1981     ld_default="${cross_prefix}gcc"
1982     TMPO=$(basename $TMPC .c).o
1983     append TMPFILES $TMPO
1984     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1985     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1986     AS_DEPFLAGS='-MMD'
1987     speed_cflags='-O3 -mf=5'
1988     size_cflags='-O3 -mf=2'
1989     filter_cflags=tms470_flags
1990     tms470_flags(){
1991         for flag; do
1992             case $flag in
1993                 -march=*|-mcpu=*)
1994                     case "${flag#*=}" in
1995                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1996                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1997                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1998                         armv6*|arm11*)          echo -mv=6   ;;
1999                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2000                                                 echo -mv=5e  ;;
2001                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2002                     esac
2003                     ;;
2004                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2005                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2006                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2007                 -msoft-float)   echo --float_support=vfplib       ;;
2008                 -O[0-3]|-mf=*)  echo $flag                        ;;
2009                 -g)             echo -g -mn                       ;;
2010                 -pds=*)         echo $flag                        ;;
2011             esac
2012         done
2013     }
2014 elif $cc -v 2>&1 | grep -q clang; then
2015     cc_type=clang
2016     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2017         cc_version=__clang_version__ || cc_version=__VERSION__
2018     cc_ident=$($cc --version | head -n1)
2019     CC_DEPFLAGS='-MMD'
2020     AS_DEPFLAGS='-MMD'
2021     speed_cflags='-O3'
2022     size_cflags='-Os'
2023 elif $cc -V 2>&1 | grep -q Sun; then
2024     cc_type=suncc
2025     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2026     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2027     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2028     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2029     speed_cflags='-O5'
2030     size_cflags='-O5 -xspace'
2031     filter_cflags=suncc_flags
2032     suncc_flags(){
2033         for flag; do
2034             case $flag in
2035                 -march=*|-mcpu=*)
2036                     case "${flag#*=}" in
2037                         native)                   echo -xtarget=native       ;;
2038                         v9|niagara)               echo -xarch=sparc          ;;
2039                         ultrasparc)               echo -xarch=sparcvis       ;;
2040                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2041                         i586|pentium)             echo -xchip=pentium        ;;
2042                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2043                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2044                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2045                         pentium4*)          echo -xtarget=pentium4           ;;
2046                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2047                         *-sse3)             echo -xarch=sse3                 ;;
2048                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2049                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2050                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2051                         k8|opteron|athlon64|athlon-fx)
2052                                                   echo -xarch=sse2a          ;;
2053                         athlon*)                  echo -xarch=pentium_proa   ;;
2054                     esac
2055                     ;;
2056                 -std=c99)             echo -xc99              ;;
2057                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2058                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2059                 -W*,*)                echo $flag              ;;
2060                 -f*-*|-W*)                                    ;;
2061                 *)                    echo $flag              ;;
2062             esac
2063         done
2064     }
2065 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2066     cc_type=pathscale
2067     cc_version=__PATHSCALE__
2068     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2069     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2070     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071     speed_cflags='-O2'
2072     size_cflags='-Os'
2073 elif $cc -v 2>&1 | grep -q Open64; then
2074     cc_type=open64
2075     cc_version=__OPEN64__
2076     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2077     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2078     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2079     speed_cflags='-O2'
2080     size_cflags='-Os'
2081 fi
2082
2083 test -n "$cc_type" && enable $cc_type ||
2084     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2085
2086 : ${as_default:=$cc}
2087 : ${dep_cc_default:=$cc}
2088 : ${ld_default:=$cc}
2089 set_default ar as dep_cc ld
2090
2091 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2092 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2093
2094 add_cflags $extra_cflags
2095 add_asflags $extra_cflags
2096
2097 if test -n "$sysroot"; then
2098     case "$cc_type" in
2099         gcc|llvm_gcc|clang)
2100             add_cppflags --sysroot="$sysroot"
2101             add_ldflags --sysroot="$sysroot"
2102         ;;
2103         tms470)
2104             add_cppflags -I"$sysinclude"
2105             add_ldflags  --sysroot="$sysroot"
2106         ;;
2107     esac
2108 fi
2109
2110 if test "$cpu" = host; then
2111     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2112
2113     case "$cc_type" in
2114         gcc|llvm_gcc)
2115             check_native(){
2116                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2117                 sed -n "/$1=/{
2118                             s/.*$1=\\([^ ]*\\).*/\\1/
2119                             p
2120                             q
2121                         }" $TMPE
2122             }
2123             cpu=$(check_native -march || check_native -mcpu)
2124         ;;
2125     esac
2126
2127     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2128 fi
2129
2130 # Deal with common $arch aliases
2131 case "$arch" in
2132     arm*)
2133         arch="arm"
2134     ;;
2135     mips|mipsel|IP*)
2136         arch="mips"
2137     ;;
2138     mips64*)
2139         arch="mips"
2140         subarch="mips64"
2141     ;;
2142     parisc|hppa)
2143         arch="parisc"
2144     ;;
2145     parisc64|hppa64)
2146         arch="parisc"
2147         subarch="parisc64"
2148     ;;
2149     "Power Macintosh"|ppc|powerpc)
2150         arch="ppc"
2151     ;;
2152     ppc64|powerpc64)
2153         arch="ppc"
2154         subarch="ppc64"
2155     ;;
2156     s390|s390x)
2157         arch="s390"
2158     ;;
2159     sh4|sh)
2160         arch="sh4"
2161     ;;
2162     sun4u|sparc64)
2163         arch="sparc"
2164         subarch="sparc64"
2165     ;;
2166     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2167         arch="x86"
2168     ;;
2169 esac
2170
2171 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2172 enable $arch
2173
2174 # Add processor-specific flags
2175 if test "$cpu" = generic; then
2176     : do nothing
2177 elif enabled ppc; then
2178
2179     case $(tolower $cpu) in
2180         601|ppc601|powerpc601)
2181             cpuflags="-mcpu=601"
2182             disable altivec
2183         ;;
2184         603*|ppc603*|powerpc603*)
2185             cpuflags="-mcpu=603"
2186             disable altivec
2187         ;;
2188         604*|ppc604*|powerpc604*)
2189             cpuflags="-mcpu=604"
2190             disable altivec
2191         ;;
2192         g3|75*|ppc75*|powerpc75*)
2193             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2194             disable altivec
2195         ;;
2196         g4|745*|ppc745*|powerpc745*)
2197             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2198         ;;
2199         74*|ppc74*|powerpc74*)
2200             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2201         ;;
2202         g5|970|ppc970|powerpc970|power4*)
2203             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2204         ;;
2205         cell)
2206             cpuflags="-mcpu=cell"
2207             enable ldbrx
2208         ;;
2209         e500v2)
2210             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2211             disable altivec
2212         ;;
2213         e500)
2214             cpuflags="-mcpu=8540 -mhard-float"
2215             disable altivec
2216         ;;
2217     esac
2218
2219 elif enabled x86; then
2220
2221     case $cpu in
2222         i[345]86|pentium)
2223             cpuflags="-march=$cpu"
2224             disable mmx
2225         ;;
2226         # targets that do NOT support conditional mov (cmov)
2227         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2228             cpuflags="-march=$cpu"
2229             disable cmov
2230         ;;
2231         # targets that do support conditional mov (cmov)
2232         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2233             cpuflags="-march=$cpu"
2234             enable cmov
2235             enable fast_cmov
2236         ;;
2237         # targets that do support conditional mov but on which it's slow
2238         pentium4|pentium4m|prescott|nocona)
2239             cpuflags="-march=$cpu"
2240             enable cmov
2241             disable fast_cmov
2242         ;;
2243     esac
2244
2245 elif enabled sparc; then
2246
2247     case $cpu in
2248         niagara)
2249             cpuflags="-mcpu=$cpu"
2250             disable vis
2251         ;;
2252         sparc64)
2253             cpuflags="-mcpu=v9"
2254         ;;
2255     esac
2256
2257 elif enabled arm; then
2258
2259     case $cpu in
2260         armv*)
2261             cpuflags="-march=$cpu"
2262             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2263         ;;
2264         *)
2265             cpuflags="-mcpu=$cpu"
2266             case $cpu in
2267                 cortex-a*)                               subarch=armv7a  ;;
2268                 cortex-r*)                               subarch=armv7r  ;;
2269                 cortex-m*)                               subarch=armv7m  ;;
2270                 arm11*)                                  subarch=armv6   ;;
2271                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2272                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2273             esac
2274         ;;
2275     esac
2276
2277 elif enabled alpha; then
2278
2279     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2280
2281 elif enabled bfin; then
2282
2283     cpuflags="-mcpu=$cpu"
2284
2285 elif enabled mips; then
2286
2287     cpuflags="-march=$cpu"
2288
2289 elif enabled avr32; then
2290
2291     case $cpu in
2292         ap7[02]0[0-2])
2293             subarch="avr32_ap"
2294             cpuflags="-mpart=$cpu"
2295         ;;
2296         ap)
2297             subarch="avr32_ap"
2298             cpuflags="-march=$cpu"
2299         ;;
2300         uc3[ab]*)
2301             subarch="avr32_uc"
2302             cpuflags="-mcpu=$cpu"
2303         ;;
2304         uc)
2305             subarch="avr32_uc"
2306             cpuflags="-march=$cpu"
2307         ;;
2308     esac
2309
2310 fi
2311
2312 add_cflags $cpuflags
2313 add_asflags $cpuflags
2314
2315 # compiler sanity check
2316 check_exec <<EOF
2317 int main(void){ return 0; }
2318 EOF
2319 if test "$?" != 0; then
2320     echo "$cc is unable to create an executable file."
2321     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2322         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2323         echo "Only do this if you know what cross compiling means."
2324     fi
2325     die "C compiler test failed."
2326 fi
2327
2328 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2329 check_cflags -std=c99
2330 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2331 #include <stdlib.h>
2332 EOF
2333 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2334 #include <stdlib.h>
2335 EOF
2336
2337 check_host_cflags -std=c99
2338
2339 case "$arch" in
2340     alpha|ia64|mips|parisc|sparc)
2341         spic=$shared
2342     ;;
2343     x86)
2344         subarch="x86_32"
2345         check_cc <<EOF && subarch="x86_64"
2346         int test[(int)sizeof(char*) - 7];
2347 EOF
2348         if test "$subarch" = "x86_64"; then
2349             spic=$shared
2350         fi
2351     ;;
2352 esac
2353
2354 enable $subarch
2355 enabled spic && enable pic
2356
2357 # OS specific
2358 case $target_os in
2359     haiku)
2360         prefix_default="/boot/common"
2361         network_extralibs="-lnetwork"
2362         host_libs=
2363         ;;
2364     sunos)
2365         FFSERVERLDFLAGS=""
2366         SHFLAGS='-shared -Wl,-h,$$(@F)'
2367         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2368         network_extralibs="-lsocket -lnsl"
2369         add_cppflags -D__EXTENSIONS__
2370         nm_opts='-P -g'
2371         ;;
2372     netbsd)
2373         disable symver
2374         oss_indev_extralibs="-lossaudio"
2375         oss_outdev_extralibs="-lossaudio"
2376         add_cppflags -D_XOPEN_SOURCE=600
2377         ;;
2378     openbsd)
2379         enable malloc_aligned
2380         # On OpenBSD 4.5. the compiler does not use PIC unless
2381         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2382         # however the generated executable will not do anything
2383         # (simply quits with exit-code 1, no crash, no output).
2384         # Thus explicitly enable PIC here.
2385         enable pic
2386         disable symver
2387         SHFLAGS='-shared'
2388         oss_indev_extralibs="-lossaudio"
2389         oss_outdev_extralibs="-lossaudio"
2390         ;;
2391     dragonfly)
2392         enable malloc_aligned
2393         disable symver
2394         ;;
2395     freebsd)
2396         enable malloc_aligned
2397         ;;
2398     bsd/os)
2399         add_extralibs -lpoll -lgnugetopt
2400         strip="strip -d"
2401         ;;
2402     darwin)
2403         enable malloc_aligned
2404         gas="gas-preprocessor.pl $cc"
2405         enabled ppc && add_asflags -force_cpusubtype_ALL
2406         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2407         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2408         strip="${strip} -x"
2409         add_ldflags -Wl,-dynamic,-search_paths_first
2410         SLIBSUF=".dylib"
2411         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2412         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2413         FFSERVERLDFLAGS=-Wl,-bind_at_load
2414         objformat="macho"
2415         enabled x86_64 && objformat="macho64"
2416         enabled_any pic shared ||
2417             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2418         ;;
2419     mingw32*)
2420         if test $target_os = "mingw32ce"; then
2421             disable network
2422         else
2423             target_os=mingw32
2424         fi
2425         LIBTARGET=i386
2426         if enabled x86_64; then
2427             enable malloc_aligned
2428             LIBTARGET="i386:x86-64"
2429         elif enabled arm; then
2430             LIBTARGET=arm-wince
2431         fi
2432         shlibdir_default="$bindir_default"
2433         SLIBPREF=""
2434         SLIBSUF=".dll"
2435         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2436         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2437         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2438         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2439             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2440             install -d "$(LIBDIR)"; \
2441             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2442         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2443         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'
2444         objformat="win32"
2445         dlltool="${cross_prefix}dlltool"
2446         enable dos_paths
2447         check_cflags -fno-common
2448         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2449                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2450                 die "ERROR: MinGW runtime version must be >= 3.15."
2451         add_cppflags -U__STRICT_ANSI__
2452         ;;
2453     cygwin*)
2454         target_os=cygwin
2455         shlibdir_default="$bindir_default"
2456         SLIBPREF="cyg"
2457         SLIBSUF=".dll"
2458         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2459         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2460         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2461         objformat="win32"
2462         enable dos_paths
2463         check_cflags -fno-common
2464         ;;
2465     *-dos|freedos|opendos)
2466         network_extralibs="-lsocket"
2467         objformat="coff"
2468         enable dos_paths
2469         ;;
2470     linux)
2471         enable dv1394
2472         ;;
2473     irix*)
2474         target_os=irix
2475         ranlib="echo ignoring ranlib"
2476         ;;
2477     os/2*)
2478         strip="lxlite -CS"
2479         ln_s="cp -f"
2480         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2481         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2482         FFSERVERLDFLAGS=""
2483         LIBSUF="_s.a"
2484         SLIBPREF=""
2485         SLIBSUF=".dll"
2486         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2487         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2488         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2489           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2490           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2491           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2492           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2493           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2494         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2495           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2496         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2497         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2498         enable dos_paths
2499         ;;
2500     gnu/kfreebsd)
2501         ;;
2502     gnu)
2503         ;;
2504     qnx)
2505         add_cppflags -D_QNX_SOURCE
2506         network_extralibs="-lsocket"
2507         ;;
2508     none)
2509         ;;
2510     *)
2511         die "Unknown OS '$target_os'."
2512         ;;
2513 esac
2514
2515 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2516
2517 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2518
2519 set_default $PATHS_LIST
2520
2521 # we need to build at least one lib type
2522 if ! enabled_any static shared; then
2523     cat <<EOF
2524 At least one library type must be built.
2525 Specify --enable-static to build the static libraries or --enable-shared to
2526 build the shared libraries as well. To only build the shared libraries specify
2527 --disable-static in addition to --enable-shared.
2528 EOF
2529     exit 1;
2530 fi
2531
2532 disabled static && LIBNAME=""
2533
2534 die_license_disabled() {
2535     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2536 }
2537
2538 die_license_disabled gpl libx264
2539 die_license_disabled gpl libxavs
2540 die_license_disabled gpl libxvid
2541 die_license_disabled gpl postproc
2542 die_license_disabled gpl x11grab
2543
2544 die_license_disabled nonfree libfaac
2545
2546 die_license_disabled version3 libopencore_amrnb
2547 die_license_disabled version3 libopencore_amrwb
2548
2549 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2550
2551 disabled optimizations || check_cflags -fomit-frame-pointer
2552
2553 enable_pic() {
2554     enable pic
2555     add_cppflags -DPIC
2556     add_cflags   -fPIC
2557     add_asflags  -fPIC
2558 }
2559
2560 enabled pic && enable_pic
2561
2562 check_cc <<EOF || die "Symbol mangling check failed."
2563 int ff_extern;
2564 EOF
2565 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2566 extern_prefix=${sym%%ff_extern*}
2567
2568 check_cc <<EOF && enable inline_asm
2569 void foo(void) { __asm__ volatile ("" ::); }
2570 EOF
2571
2572 _restrict=
2573 for restrict_keyword in restrict __restrict__ __restrict; do
2574     check_cc <<EOF && _restrict=$restrict_keyword && break
2575 void foo(char * $restrict_keyword p);
2576 EOF
2577 done
2578
2579 check_cc <<EOF && enable attribute_packed
2580 struct { int x; } __attribute__((packed)) x;
2581 EOF
2582
2583 check_cc <<EOF && enable attribute_may_alias
2584 union { int x; } __attribute__((may_alias)) x;
2585 EOF
2586
2587 check_cc <<EOF || die "endian test failed"
2588 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2589 EOF
2590 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2591
2592 if enabled alpha; then
2593
2594     check_cflags -mieee
2595
2596 elif enabled arm; then
2597
2598     check_cflags -marm
2599     nogas=die
2600
2601     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2602         enable vfp_args
2603     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2604         case "${cross_prefix:-$cc}" in
2605             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2606             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2607 __asm__ (".eabi_attribute 28, 1");
2608 int main(void) { return 0; }
2609 EOF
2610         esac
2611         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2612     fi
2613
2614     # We have to check if pld is a nop and disable it.
2615     check_asm pld '"pld [r0]"'
2616
2617     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2618     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2619     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2620     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2621     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2622     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2623
2624     enabled_all armv6t2 shared !pic && enable_pic
2625
2626 elif enabled mips; then
2627
2628     check_asm loongson '"dmult.g $1, $2, $3"'
2629     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2630
2631 elif enabled ppc; then
2632
2633     enable local_aligned_8 local_aligned_16
2634
2635     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2636     check_asm ibm_asm   '"add 0, 0, 0"'
2637     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2638     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2639
2640     # AltiVec flags: The FSF version of GCC differs from the Apple version
2641     if enabled altivec; then
2642         nogas=warn
2643         check_cflags -maltivec -mabi=altivec &&
2644         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2645         check_cflags -faltivec
2646
2647         # check if our compiler supports Motorola AltiVec C API
2648         check_cc <<EOF || disable altivec
2649 $inc_altivec_h
2650 int main(void) {
2651     vector signed int v1, v2, v3;
2652     v1 = vec_add(v2,v3);
2653     return 0;
2654 }
2655 EOF
2656
2657         # check if our compiler supports braces for vector declarations
2658         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2659 $inc_altivec_h
2660 int main (void) { (vector int) {1}; return 0; }
2661 EOF
2662     fi
2663
2664 elif enabled sparc; then
2665
2666     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2667         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2668
2669 elif enabled x86; then
2670
2671     enable local_aligned_8 local_aligned_16
2672
2673     # check whether EBP is available on x86
2674     # As 'i' is stored on the stack, this program will crash
2675     # if the base pointer is used to access it because the
2676     # base pointer is cleared in the inline assembly code.
2677     check_exec_crash <<EOF && enable ebp_available
2678     volatile int i=0;
2679     __asm__ volatile (
2680         "xorl %%ebp, %%ebp"
2681     ::: "%ebp");
2682     return i;
2683 EOF
2684
2685     # check whether EBX is available on x86
2686     check_asm ebx_available '""::"b"(0)' &&
2687         check_asm ebx_available '"":::"%ebx"'
2688
2689     # check whether xmm clobbers are supported
2690     check_asm xmm_clobbers '"":::"%xmm0"'
2691
2692     # check whether more than 10 operands are supported
2693     check_cc <<EOF && enable ten_operands
2694 int main(void) {
2695     int x=0;
2696     __asm__ volatile(
2697         ""
2698         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2699     );
2700     return 0;
2701 }
2702 EOF
2703
2704     # check whether binutils is new enough to compile SSSE3/MMX2
2705     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2706     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2707
2708     check_asm bswap '"bswap %%eax" ::: "%eax"'
2709
2710     if ! disabled_any asm mmx yasm; then
2711         if check_cmd $yasmexe --version; then
2712             enabled x86_64 && yasm_extra="-m amd64"
2713             yasm_debug="-g dwarf2"
2714         elif check_cmd nasm -v; then
2715             yasmexe=nasm
2716             yasm_debug="-g -F dwarf"
2717             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2718         fi
2719
2720         YASMFLAGS="-f $objformat $yasm_extra"
2721         enabled pic               && append YASMFLAGS "-DPIC"
2722         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2723         case "$objformat" in
2724             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2725         esac
2726
2727         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2728             die "yasm not found, use --disable-yasm for a crippled build"
2729         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2730     fi
2731
2732     case "$cpu" in
2733         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2734             disable fast_clz
2735         ;;
2736     esac
2737
2738 fi
2739
2740 if enabled asm; then
2741     as=${gas:=$as}
2742     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2743         $nogas "GNU assembler not found, install gas-preprocessor"
2744 fi
2745
2746 check_ldflags -Wl,--as-needed
2747
2748 if check_func dlopen; then
2749     ldl=
2750 elif check_func dlopen -ldl; then
2751     ldl=-ldl
2752 fi
2753
2754 if enabled network; then
2755     check_type "sys/types.h sys/socket.h" socklen_t
2756     check_type netdb.h "struct addrinfo"
2757     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2758     check_type netinet/in.h "struct sockaddr_in6"
2759     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2760     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2761     # Prefer arpa/inet.h over winsock2
2762     if check_header arpa/inet.h ; then
2763         check_func closesocket
2764     elif check_header winsock2.h ; then
2765         check_func_headers winsock2.h closesocket -lws2 && \
2766             network_extralibs="-lws2" || \
2767         { check_func_headers winsock2.h closesocket -lws2_32 && \
2768             network_extralibs="-lws2_32"; }
2769         check_type ws2tcpip.h socklen_t
2770         check_type ws2tcpip.h "struct addrinfo"
2771         check_type ws2tcpip.h "struct ipv6_mreq"
2772         check_type ws2tcpip.h "struct sockaddr_in6"
2773         check_type ws2tcpip.h "struct sockaddr_storage"
2774         check_struct winsock2.h "struct sockaddr" sa_len
2775     else
2776         disable network
2777     fi
2778 fi
2779
2780 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2781 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2782
2783 check_func  fcntl
2784 check_func  fork
2785 check_func  getaddrinfo $network_extralibs
2786 check_func  gethrtime
2787 check_func  getrusage
2788 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2789 check_func  inet_aton $network_extralibs
2790 check_func  isatty
2791 check_func  localtime_r
2792 check_func  ${malloc_prefix}memalign            && enable memalign
2793 check_func  mkstemp
2794 check_func  mmap
2795 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2796 check_func  setrlimit
2797 check_func  strerror_r
2798 check_func  strtok_r
2799 check_func_headers conio.h kbhit
2800 check_func_headers io.h setmode
2801 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2802 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2803 check_func_headers windows.h GetProcessTimes
2804 check_func_headers windows.h MapViewOfFile
2805 check_func_headers windows.h VirtualAlloc
2806
2807 check_header dlfcn.h
2808 check_header dxva2api.h
2809 check_header libcrystalhd/libcrystalhd_if.h
2810 check_header malloc.h
2811 check_header poll.h
2812 check_header sys/mman.h
2813 check_header sys/resource.h
2814 check_header sys/select.h
2815 check_header vdpau/vdpau.h
2816 check_header vdpau/vdpau_x11.h
2817 check_header X11/extensions/XvMClib.h
2818
2819 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2820
2821 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2822      enabled_any $need_memalign ; then
2823     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2824 fi
2825
2826 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2827 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2828
2829 # check for some common methods of building with pthread support
2830 # do this before the optional library checks as some of them require pthreads
2831 if ! disabled pthreads && ! enabled w32threads; then
2832     enable pthreads
2833     if check_func pthread_create; then
2834         :
2835     elif check_func pthread_create -pthread; then
2836         add_cflags -pthread
2837         add_extralibs -pthread
2838     elif check_func pthread_create -pthreads; then
2839         add_cflags -pthreads
2840         add_extralibs -pthreads
2841     elif check_func pthread_create -lpthreadGC2; then
2842         add_extralibs -lpthreadGC2
2843     elif ! check_lib pthread.h pthread_create -lpthread; then
2844         disable pthreads
2845     fi
2846 fi
2847
2848 for thread in $THREADS_LIST; do
2849     if enabled $thread; then
2850         test -n "$thread_type" &&
2851             die "ERROR: Only one thread type must be selected." ||
2852             thread_type="$thread"
2853     fi
2854 done
2855
2856 check_lib math.h sin -lm
2857 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2858 disabled vaapi || check_lib va/va.h vaInitialize -lva || disable vaapi
2859
2860 check_mathfunc exp2
2861 check_mathfunc exp2f
2862 check_mathfunc llrint
2863 check_mathfunc llrintf
2864 check_mathfunc log2
2865 check_mathfunc log2f
2866 check_mathfunc lrint
2867 check_mathfunc lrintf
2868 check_mathfunc round
2869 check_mathfunc roundf
2870 check_mathfunc truncf
2871
2872 # these are off by default, so fail if requested and not available
2873 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2874 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2875 enabled libdirac   && require_pkg_config dirac                          \
2876     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2877     "dirac_decoder_init dirac_encoder_init"
2878 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2879 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2880 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2881 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2882 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2883 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2884 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2885 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2886 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2887 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2888 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2889 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2890 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2891 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2892 enabled libvpx     && {
2893     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2894                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2895     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2896                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2897 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2898                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2899                         die "ERROR: libx264 version must be >= 0.99."; }
2900 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2901 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2902 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2903
2904 # libdc1394 check
2905 if enabled libdc1394; then
2906     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2907         enable libdc1394_2; } ||
2908     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2909         enable libdc1394_1; } ||
2910     die "ERROR: No version of libdc1394 found "
2911 fi
2912
2913 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2914     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2915     enable sdl &&
2916     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2917 fi
2918
2919 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2920
2921 check_header linux/fb.h
2922 check_header linux/videodev.h
2923 check_header linux/videodev2.h
2924 check_header sys/videoio.h
2925
2926 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2927 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2928 # w32api 3.12 had it defined wrong
2929 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2930
2931 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2932 { check_header dev/bktr/ioctl_meteor.h &&
2933   check_header dev/bktr/ioctl_bt848.h; } ||
2934 { check_header machine/ioctl_meteor.h &&
2935   check_header machine/ioctl_bt848.h; } ||
2936 { check_header dev/video/meteor/ioctl_meteor.h &&
2937   check_header dev/video/bktr/ioctl_bt848.h; } ||
2938 check_header dev/ic/bt8xx.h
2939
2940 check_header sndio.h
2941 check_header sys/soundcard.h
2942 check_header soundcard.h
2943
2944 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2945
2946 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2947
2948 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2949
2950 enabled x11grab                         &&
2951 check_header X11/Xlib.h                 &&
2952 check_header X11/extensions/XShm.h      &&
2953 check_header X11/extensions/Xfixes.h    &&
2954 check_func XOpenDisplay -lX11           &&
2955 check_func XShmCreateImage -lX11 -lXext &&
2956 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2957
2958 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2959 check_cpp_condition \
2960     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2961     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2962       disable vdpau; }
2963 fi
2964
2965 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2966
2967 # add some useful compiler flags if supported
2968 check_cflags -Wdeclaration-after-statement
2969 check_cflags -Wall
2970 check_cflags -Wno-parentheses
2971 check_cflags -Wno-switch
2972 check_cflags -Wdisabled-optimization
2973 check_cflags -Wpointer-arith
2974 check_cflags -Wredundant-decls
2975 check_cflags -Wno-pointer-sign
2976 check_cflags -Wcast-qual
2977 check_cflags -Wwrite-strings
2978 check_cflags -Wtype-limits
2979 check_cflags -Wundef
2980 check_cflags -Wmissing-prototypes
2981 enabled extra_warnings && check_cflags -Winline
2982
2983 # add some linker flags
2984 check_ldflags -Wl,--warn-common
2985 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'
2986 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2987
2988 echo "X{};" > $TMPV
2989 if test_ldflags -Wl,--version-script,$TMPV; then
2990     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2991     check_cc <<EOF && enable symver_asm_label
2992 void ff_foo(void) __asm__ ("av_foo@VERSION");
2993 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2994 EOF
2995     check_cc <<EOF && enable symver_gnu_asm
2996 __asm__(".symver ff_foo,av_foo@VERSION");
2997 void ff_foo(void) {}
2998 EOF
2999 fi
3000
3001 if enabled small; then
3002     add_cflags $size_cflags
3003     optimizations="small"
3004 elif enabled optimizations; then
3005     add_cflags $speed_cflags
3006 else
3007     add_cflags $noopt_cflags
3008 fi
3009 check_cflags -fno-math-errno
3010 check_cflags -fno-signed-zeros
3011
3012 if enabled icc; then
3013     # Just warnings, no remarks
3014     check_cflags -w1
3015     # -wd: Disable following warnings
3016     # 144, 167, 556: -Wno-pointer-sign
3017     # 1292: attribute "foo" ignored
3018     # 10006: ignoring unknown option -fno-signed-zeros
3019     # 10148: ignoring unknown option -Wno-parentheses
3020     # 10156: ignoring option '-W'; no argument required
3021     check_cflags -wd144,167,556,1292,10006,10148,10156
3022     # 11030: Warning unknown option --as-needed
3023     # 10156: ignoring option '-export'; no argument required
3024     check_ldflags -wd10156,11030
3025     # Allow to compile with optimizations
3026     check_ldflags -march=$cpu
3027     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3028     enable ebp_available
3029     if enabled x86_32; then
3030         test ${icc_version%%.*} -ge 11 && \
3031             check_cflags -falign-stack=maintain-16-byte || \
3032             disable aligned_stack
3033     fi
3034 elif enabled ccc; then
3035     # disable some annoying warnings
3036     add_cflags -msg_disable cvtu32to64
3037     add_cflags -msg_disable embedcomment
3038     add_cflags -msg_disable needconstext
3039     add_cflags -msg_disable nomainieee
3040     add_cflags -msg_disable ptrmismatch1
3041     add_cflags -msg_disable unreachcode
3042 elif enabled gcc; then
3043     check_cflags -fno-tree-vectorize
3044     check_cflags -Werror=implicit-function-declaration
3045     check_cflags -Werror=missing-prototypes
3046 elif enabled llvm_gcc; then
3047     check_cflags -mllvm -stack-alignment=16
3048 elif enabled clang; then
3049     check_cflags -mllvm -stack-alignment=16
3050     check_cflags -Qunused-arguments
3051 elif enabled armcc; then
3052     # 2523: use of inline assembler is deprecated
3053     add_cflags -W${armcc_opt},--diag_suppress=2523
3054     add_cflags -W${armcc_opt},--diag_suppress=1207
3055     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3056     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3057 elif enabled tms470; then
3058     add_cflags -pds=824 -pds=837
3059 elif enabled pathscale; then
3060     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3061 fi
3062
3063 enabled_any $THREADS_LIST      && enable threads
3064
3065 check_deps $CONFIG_LIST       \
3066            $CONFIG_EXTRA      \
3067            $HAVE_LIST         \
3068            $DECODER_LIST      \
3069            $ENCODER_LIST      \
3070            $HWACCEL_LIST      \
3071            $PARSER_LIST       \
3072            $BSF_LIST          \
3073            $DEMUXER_LIST      \
3074            $MUXER_LIST        \
3075            $FILTER_LIST       \
3076            $INDEV_LIST        \
3077            $OUTDEV_LIST       \
3078            $PROTOCOL_LIST     \
3079            $ACODEC_TESTS      \
3080            $VCODEC_TESTS      \
3081            $LAVF_TESTS        \
3082            $LAVFI_TESTS       \
3083            $SEEK_TESTS        \
3084
3085 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3086
3087 echo "install prefix            $prefix"
3088 echo "source path               $source_path"
3089 echo "C compiler                $cc"
3090 echo "ARCH                      $arch ($cpu)"
3091 if test "$build_suffix" != ""; then
3092     echo "build suffix              $build_suffix"
3093 fi
3094 if test "$extra_version" != ""; then
3095     echo "version string suffix     $extra_version"
3096 fi
3097 echo "big-endian                ${bigendian-no}"
3098 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3099 if enabled x86; then
3100     echo "yasm                      ${yasm-no}"
3101     echo "MMX enabled               ${mmx-no}"
3102     echo "MMX2 enabled              ${mmx2-no}"
3103     echo "3DNow! enabled            ${amd3dnow-no}"
3104     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3105     echo "SSE enabled               ${sse-no}"
3106     echo "SSSE3 enabled             ${ssse3-no}"
3107     echo "CMOV enabled              ${cmov-no}"
3108     echo "CMOV is fast              ${fast_cmov-no}"
3109     echo "EBX available             ${ebx_available-no}"
3110     echo "EBP available             ${ebp_available-no}"
3111     echo "10 operands supported     ${ten_operands-no}"
3112 fi
3113 if enabled arm; then
3114     echo "ARMv5TE enabled           ${armv5te-no}"
3115     echo "ARMv6 enabled             ${armv6-no}"
3116     echo "ARMv6T2 enabled           ${armv6t2-no}"
3117     echo "ARM VFP enabled           ${armvfp-no}"
3118     echo "IWMMXT enabled            ${iwmmxt-no}"
3119     echo "NEON enabled              ${neon-no}"
3120 fi
3121 if enabled mips; then
3122     echo "MMI enabled               ${mmi-no}"
3123 fi
3124 if enabled ppc; then
3125     echo "AltiVec enabled           ${altivec-no}"
3126     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3127     echo "dcbzl available           ${dcbzl-no}"
3128 fi
3129 if enabled sparc; then
3130     echo "VIS enabled               ${vis-no}"
3131 fi
3132 echo "debug symbols             ${debug-no}"
3133 echo "strip symbols             ${stripping-no}"
3134 echo "optimizations             ${optimizations-no}"
3135 echo "static                    ${static-no}"
3136 echo "shared                    ${shared-no}"
3137 echo "postprocessing support    ${postproc-no}"
3138 echo "new filter support        ${avfilter-no}"
3139 echo "network support           ${network-no}"
3140 echo "threading support         ${thread_type-no}"
3141 echo "SDL support               ${sdl-no}"
3142 echo "Sun medialib support      ${mlib-no}"
3143 echo "AVISynth enabled          ${avisynth-no}"
3144 echo "frei0r enabled            ${frei0r-no}"
3145 echo "libdc1394 support         ${libdc1394-no}"
3146 echo "libdirac enabled          ${libdirac-no}"
3147 echo "libfaac enabled           ${libfaac-no}"
3148 echo "libgsm enabled            ${libgsm-no}"
3149 echo "libmp3lame enabled        ${libmp3lame-no}"
3150 echo "libnut enabled            ${libnut-no}"
3151 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3152 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3153 echo "libopencv support         ${libopencv-no}"
3154 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3155 echo "librtmp enabled           ${librtmp-no}"
3156 echo "libschroedinger enabled   ${libschroedinger-no}"
3157 echo "libspeex enabled          ${libspeex-no}"
3158 echo "libtheora enabled         ${libtheora-no}"
3159 echo "libvorbis enabled         ${libvorbis-no}"
3160 echo "libvpx enabled            ${libvpx-no}"
3161 echo "libx264 enabled           ${libx264-no}"
3162 echo "libxavs enabled           ${libxavs-no}"
3163 echo "libxvid enabled           ${libxvid-no}"
3164 echo "zlib enabled              ${zlib-no}"
3165 echo "bzlib enabled             ${bzlib-no}"
3166 echo
3167
3168 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3169     echo "Enabled ${type}s:"
3170     eval list=\$$(toupper $type)_LIST
3171     print_enabled '_*' $list | sort | pr -r -3 -t
3172     echo
3173 done
3174
3175 license="LGPL version 2.1 or later"
3176 if enabled nonfree; then
3177     license="nonfree and unredistributable"
3178 elif enabled gplv3; then
3179     license="GPL version 3 or later"
3180 elif enabled lgplv3; then
3181     license="LGPL version 3 or later"
3182 elif enabled gpl; then
3183     license="GPL version 2 or later"
3184 fi
3185
3186 echo "License: $license"
3187
3188 echo "Creating config.mak and config.h..."
3189
3190 # build tree in object directory if source path is different from current one
3191 if enabled source_path_used; then
3192     DIRS="
3193         doc
3194         libavcodec
3195         libavcodec/$arch
3196         libavdevice
3197         libavfilter
3198         libavfilter/$arch
3199         libavfilter/libmpcodecs
3200         libavfilter/libmpcodecs/libvo
3201         libavformat
3202         libavutil
3203         libavutil/$arch
3204         libpostproc
3205         libswscale
3206         libswscale/$arch
3207         tests
3208         tools
3209     "
3210     FILES="
3211         Makefile
3212         common.mak
3213         subdir.mak
3214         doc/texi2pod.pl
3215         libavcodec/Makefile
3216         libavcodec/${arch}/Makefile
3217         libavdevice/Makefile
3218         libavfilter/Makefile
3219         libavfilter/${arch}/Makefile
3220         libavformat/Makefile
3221         libavutil/Makefile
3222         libpostproc/Makefile
3223         libswscale/Makefile
3224     "
3225     map 'mkdir -p $v' $DIRS;
3226     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3227 fi
3228
3229 enabled stripping || strip="echo skipping strip"
3230
3231 config_files="$TMPH config.mak"
3232
3233 cat > config.mak <<EOF
3234 # Automatically generated by configure - do not modify!
3235 ifndef FFMPEG_CONFIG_MAK
3236 FFMPEG_CONFIG_MAK=1
3237 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3238 prefix=$prefix
3239 LIBDIR=\$(DESTDIR)$libdir
3240 SHLIBDIR=\$(DESTDIR)$shlibdir
3241 INCDIR=\$(DESTDIR)$incdir
3242 BINDIR=\$(DESTDIR)$bindir
3243 DATADIR=\$(DESTDIR)$datadir
3244 MANDIR=\$(DESTDIR)$mandir
3245 SRC_PATH="$source_path"
3246 SRC_PATH_BARE=$source_path
3247 BUILD_ROOT="$PWD"
3248 CC_IDENT=$cc_ident
3249 ARCH=$arch
3250 CC=$cc
3251 AS=$as
3252 LD=$ld
3253 DEPCC=$dep_cc
3254 YASM=$yasmexe
3255 YASMDEP=$yasmexe
3256 AR=$ar
3257 RANLIB=$ranlib
3258 CP=cp -p
3259 LN_S=$ln_s
3260 STRIP=$strip
3261 CPPFLAGS=$CPPFLAGS
3262 CFLAGS=$CFLAGS
3263 ASFLAGS=$ASFLAGS
3264 CC_O=$CC_O
3265 DLLTOOL=$dlltool
3266 LDFLAGS=$LDFLAGS
3267 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3268 SHFLAGS=$SHFLAGS
3269 YASMFLAGS=$YASMFLAGS
3270 BUILDSUF=$build_suffix
3271 FULLNAME=$FULLNAME
3272 LIBPREF=$LIBPREF
3273 LIBSUF=$LIBSUF
3274 LIBNAME=$LIBNAME
3275 SLIBPREF=$SLIBPREF
3276 SLIBSUF=$SLIBSUF
3277 EXESUF=$EXESUF
3278 EXTRA_VERSION=$extra_version
3279 DEPFLAGS=$DEPFLAGS
3280 CCDEP=$CCDEP
3281 ASDEP=$ASDEP
3282 CC_DEPFLAGS=$CC_DEPFLAGS
3283 AS_DEPFLAGS=$AS_DEPFLAGS
3284 HOSTCC=$host_cc
3285 HOSTCFLAGS=$host_cflags
3286 HOSTEXESUF=$HOSTEXESUF
3287 HOSTLDFLAGS=$host_ldflags
3288 HOSTLIBS=$host_libs
3289 TARGET_EXEC=$target_exec
3290 TARGET_PATH=$target_path
3291 SDL_LIBS=$sdl_libs
3292 SDL_CFLAGS=$sdl_cflags
3293 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3294 EXTRALIBS=$extralibs
3295 INSTALL=install
3296 LIBTARGET=${LIBTARGET}
3297 SLIBNAME=${SLIBNAME}
3298 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3299 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3300 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3301 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3302 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3303 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3304 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3305 EOF
3306
3307 get_version(){
3308     name=$1
3309     file=$source_path/$2
3310     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3311     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3312     lcname=$(tolower $name)
3313     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3314     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3315 }
3316
3317 get_version LIBSWSCALE  libswscale/swscale.h
3318 get_version LIBPOSTPROC libpostproc/postprocess.h
3319 get_version LIBAVCODEC  libavcodec/version.h
3320 get_version LIBAVDEVICE libavdevice/avdevice.h
3321 get_version LIBAVFORMAT libavformat/version.h
3322 get_version LIBAVUTIL   libavutil/avutil.h
3323 get_version LIBAVFILTER libavfilter/avfilter.h
3324
3325 cat > $TMPH <<EOF
3326 /* Automatically generated by configure - do not modify! */
3327 #ifndef FFMPEG_CONFIG_H
3328 #define FFMPEG_CONFIG_H
3329 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3330 #define FFMPEG_LICENSE "$(c_escape $license)"
3331 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3332 #define CC_TYPE "$cc_type"
3333 #define CC_VERSION $cc_version
3334 #define restrict $_restrict
3335 #define EXTERN_PREFIX "${extern_prefix}"
3336 #define EXTERN_ASM ${extern_prefix}
3337 #define SLIBSUF "$SLIBSUF"
3338 EOF
3339
3340 test -n "$malloc_prefix" &&
3341     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3342
3343 if enabled small || disabled optimizations; then
3344     echo "#undef  av_always_inline"  >> $TMPH
3345     if enabled small; then
3346         echo "#define av_always_inline inline"  >> $TMPH
3347     else
3348         echo "#define av_always_inline av_unused"  >> $TMPH
3349     fi
3350 fi
3351
3352 if enabled yasm; then
3353     append config_files $TMPASM
3354     printf '' >$TMPASM
3355 fi
3356
3357 print_config ARCH_   "$config_files" $ARCH_LIST
3358 print_config HAVE_   "$config_files" $HAVE_LIST
3359 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3360                                      $CONFIG_EXTRA      \
3361                                      $DECODER_LIST      \
3362                                      $ENCODER_LIST      \
3363                                      $HWACCEL_LIST      \
3364                                      $PARSER_LIST       \
3365                                      $BSF_LIST          \
3366                                      $DEMUXER_LIST      \
3367                                      $MUXER_LIST        \
3368                                      $FILTER_LIST       \
3369                                      $PROTOCOL_LIST     \
3370                                      $INDEV_LIST        \
3371                                      $OUTDEV_LIST       \
3372
3373 cat >>config.mak <<EOF
3374 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3375 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3376 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3377 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3378 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3379 EOF
3380
3381 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3382 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3383
3384 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3385 cp_if_changed $TMPH config.h
3386 touch .config
3387
3388 enabled yasm && cp_if_changed $TMPASM config.asm
3389
3390 cat > $TMPH <<EOF
3391 /* Generated by ffconf */
3392 #ifndef AVUTIL_AVCONFIG_H
3393 #define AVUTIL_AVCONFIG_H
3394 EOF
3395
3396 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3397
3398 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3399
3400 cp_if_changed $TMPH libavutil/avconfig.h
3401
3402 test -n "$WARNINGS" && printf "\n$WARNINGS"
3403
3404 # build pkg-config files
3405
3406 pkgconfig_generate(){
3407 name=$1
3408 shortname=${name#lib}${build_suffix}
3409 comment=$2
3410 version=$3
3411 libs=$4
3412 requires=$5
3413 enabled ${name#lib} || return 0
3414 cat <<EOF > $name/$name.pc
3415 prefix=$prefix
3416 exec_prefix=\${prefix}
3417 libdir=$libdir
3418 includedir=$incdir
3419
3420 Name: $name
3421 Description: $comment
3422 Version: $version
3423 Requires: $(enabled shared || echo $requires)
3424 Requires.private: $(enabled shared && echo $requires)
3425 Conflicts:
3426 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3427 Libs.private: $(enabled shared && echo $libs)
3428 Cflags: -I\${includedir}
3429 EOF
3430 cat <<EOF > $name/$name-uninstalled.pc
3431 prefix=
3432 exec_prefix=
3433 libdir=\${pcfiledir}
3434 includedir=${source_path}
3435
3436 Name: $name
3437 Description: $comment
3438 Version: $version
3439 Requires: $requires
3440 Conflicts:
3441 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3442 Cflags: -I\${includedir}
3443 EOF
3444 }
3445
3446 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3447 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3448 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3449 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3450 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3451 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3452 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"