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1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
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-libgsm          enable GSM support via libgsm [no]
173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
174   --enable-libnut          enable NUT (de)muxing via libnut,
175                            native (de)muxer exists [no]
176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
179   --enable-libspeex        enable Speex decoding via libspeex [no]
180   --enable-libtheora       enable Theora encoding via libtheora [no]
181   --enable-libvorbis       enable Vorbis encoding via libvorbis,
182                            native implementation exists [no]
183   --enable-libvpx          enable VP8 support via libvpx [no]
184   --enable-libx264         enable H.264 encoding via x264 [no]
185   --enable-libxavs         enable AVS encoding via xavs [no]
186   --enable-libxvid         enable Xvid encoding via xvidcore,
187                            native MPEG-4/Xvid encoder exists [no]
188   --enable-mlib            enable Sun medialib [no]
189   --enable-zlib            enable zlib [autodetect]
190
191 Advanced options (experts only):
192   --source-path=PATH       path to source code [$source_path]
193   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
194   --enable-cross-compile   assume a cross-compiler is used
195   --sysroot=PATH           root of cross-build tree
196   --sysinclude=PATH        location of cross-build system headers
197   --target-os=OS           compiler targets OS [$target_os]
198   --target-exec=CMD        command to run executables on target
199   --target-path=DIR        path to view of build directory on target
200   --nm=NM                  use nm tool
201   --ar=AR                  use archive tool AR [$ar_default]
202   --as=AS                  use assembler AS [$as_default]
203   --cc=CC                  use C compiler CC [$cc_default]
204   --ld=LD                  use linker LD
205   --host-cc=HOSTCC         use host C compiler HOSTCC
206   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
207   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
208   --host-libs=HLIBS        use libs HLIBS when linking for host
209   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
210   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
211   --extra-libs=ELIBS       add ELIBS [$ELIBS]
212   --extra-version=STRING   version string suffix []
213   --build-suffix=SUFFIX    library name suffix []
214   --arch=ARCH              select architecture [$arch]
215   --cpu=CPU                select the minimum required CPU (affects
216                            instruction selection, may crash on older CPUs)
217   --disable-asm            disable all assembler optimizations
218   --disable-altivec        disable AltiVec optimizations
219   --disable-amd3dnow       disable 3DNow! optimizations
220   --disable-amd3dnowext    disable 3DNow! extended optimizations
221   --disable-mmx            disable MMX optimizations
222   --disable-mmx2           disable MMX2 optimizations
223   --disable-sse            disable SSE optimizations
224   --disable-ssse3          disable SSSE3 optimizations
225   --disable-avx            disable AVX optimizations
226   --disable-armv5te        disable armv5te optimizations
227   --disable-armv6          disable armv6 optimizations
228   --disable-armv6t2        disable armv6t2 optimizations
229   --disable-armvfp         disable ARM VFP optimizations
230   --disable-iwmmxt         disable iwmmxt optimizations
231   --disable-mmi            disable MMI optimizations
232   --disable-neon           disable neon optimizations
233   --disable-vis            disable VIS optimizations
234   --disable-yasm           disable use of yasm assembler
235   --enable-pic             build position-independent code
236   --malloc-prefix=PFX      prefix malloc and related names with PFX
237   --enable-sram            allow use of on-chip SRAM
238   --disable-symver         disable symbol versioning
239
240 Developer options (useful when working on Libav itself):
241   --disable-debug          disable debugging symbols
242   --enable-debug=LEVEL     set the debug level [$debuglevel]
243   --disable-optimizations  disable compiler optimizations
244   --enable-extra-warnings  enable more compiler warnings
245   --disable-stripping      disable stripping of executables and shared libraries
246   --samples=PATH           location of test samples for FATE, if not set use
247                            \$FATE_SAMPLES at make invocation time.
248
249 NOTE: Object files are built at the place where configure is launched.
250 EOF
251   exit 0
252 }
253
254 quotes='""'
255
256 log(){
257     echo "$@" >> $logfile
258 }
259
260 log_file(){
261     log BEGIN $1
262     pr -n -t $1 >> $logfile
263     log END $1
264 }
265
266 echolog(){
267     log "$@"
268     echo "$@"
269 }
270
271 warn(){
272     log "WARNING: $*"
273     WARNINGS="${WARNINGS}WARNING: $*\n"
274 }
275
276 die(){
277     echolog "$@"
278     cat <<EOF
279
280 If you think configure made a mistake, make sure you are using the latest
281 version from Git.  If the latest version fails, report the problem to the
282 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
283 EOF
284     if disabled logging; then
285         cat <<EOF
286 Rerun configure with logging enabled (do not use --disable-logging), and
287 include the log this produces with your report.
288 EOF
289     else
290 cat <<EOF
291 Include the log file "$logfile" produced by configure as this will help
292 solving the problem.
293 EOF
294     fi
295     exit 1
296 }
297
298 # Avoid locale weirdness, besides we really just want to translate ASCII.
299 toupper(){
300     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
301 }
302
303 tolower(){
304     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
305 }
306
307 c_escape(){
308     echo "$*" | sed 's/["\\]/\\\0/g'
309 }
310
311 sh_quote(){
312     v=$(echo "$1" | sed "s/'/'\\\\''/g")
313     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
314     echo "$v"
315 }
316
317 cleanws(){
318     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
319 }
320
321 filter(){
322     pat=$1
323     shift
324     for v; do
325         eval "case $v in $pat) echo $v ;; esac"
326     done
327 }
328
329 filter_out(){
330     pat=$1
331     shift
332     for v; do
333         eval "case $v in $pat) ;; *) echo $v ;; esac"
334     done
335 }
336
337 map(){
338     m=$1
339     shift
340     for v; do eval $m; done
341 }
342
343 set_all(){
344     value=$1
345     shift
346     for var in $*; do
347         eval $var=$value
348     done
349 }
350
351 set_weak(){
352     value=$1
353     shift
354     for var; do
355         eval : \${$var:=$value}
356     done
357 }
358
359 set_safe(){
360     var=$1
361     shift
362     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
363 }
364
365 get_safe(){
366     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
367 }
368
369 pushvar(){
370     for var in $*; do
371         eval level=\${${var}_level:=0}
372         eval ${var}_${level}="\$$var"
373         eval ${var}_level=$(($level+1))
374     done
375 }
376
377 popvar(){
378     for var in $*; do
379         eval level=\${${var}_level:-0}
380         test $level = 0 && continue
381         eval level=$(($level-1))
382         eval $var="\${${var}_${level}}"
383         eval ${var}_level=$level
384         eval unset ${var}_${level}
385     done
386 }
387
388 enable(){
389     set_all yes $*
390 }
391
392 disable(){
393     set_all no $*
394 }
395
396 enable_weak(){
397     set_weak yes $*
398 }
399
400 disable_weak(){
401     set_weak no $*
402 }
403
404 enable_safe(){
405     for var; do
406         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
407     done
408 }
409
410 disable_safe(){
411     for var; do
412         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
413     done
414 }
415
416 do_enable_deep(){
417     for var; do
418         enabled $var && continue
419         eval sel="\$${var}_select"
420         eval sgs="\$${var}_suggest"
421         pushvar var sgs
422         enable_deep $sel
423         popvar sgs
424         enable_deep_weak $sgs
425         popvar var
426     done
427 }
428
429 enable_deep(){
430     do_enable_deep $*
431     enable $*
432 }
433
434 enable_deep_weak(){
435     do_enable_deep $*
436     enable_weak $*
437 }
438
439 enabled(){
440     test "${1#!}" = "$1" && op== || op=!=
441     eval test "x\$${1#!}" $op "xyes"
442 }
443
444 disabled(){
445     test "${1#!}" = "$1" && op== || op=!=
446     eval test "x\$${1#!}" $op "xno"
447 }
448
449 enabled_all(){
450     for opt; do
451         enabled $opt || return 1
452     done
453 }
454
455 disabled_all(){
456     for opt; do
457         disabled $opt || return 1
458     done
459 }
460
461 enabled_any(){
462     for opt; do
463         enabled $opt && return 0
464     done
465 }
466
467 disabled_any(){
468     for opt; do
469         disabled $opt && return 0
470     done
471     return 1
472 }
473
474 set_default(){
475     for opt; do
476         eval : \${$opt:=\$${opt}_default}
477     done
478 }
479
480 is_in(){
481     value=$1
482     shift
483     for var in $*; do
484         [ $var = $value ] && return 0
485     done
486     return 1
487 }
488
489 check_deps(){
490     for cfg; do
491         cfg="${cfg#!}"
492         enabled ${cfg}_checking && die "Circular dependency for $cfg."
493         disabled ${cfg}_checking && continue
494         enable ${cfg}_checking
495
496         eval dep_all="\$${cfg}_deps"
497         eval dep_any="\$${cfg}_deps_any"
498         eval dep_sel="\$${cfg}_select"
499         eval dep_sgs="\$${cfg}_suggest"
500         eval dep_ifa="\$${cfg}_if"
501         eval dep_ifn="\$${cfg}_if_any"
502
503         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
504         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
505         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
506
507         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
508         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
509         enabled_all  $dep_all || disable $cfg
510         enabled_any  $dep_any || disable $cfg
511         disabled_any $dep_sel && disable $cfg
512
513         if enabled $cfg; then
514             eval dep_extralibs="\$${cfg}_extralibs"
515             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
516             enable_deep $dep_sel
517             enable_deep_weak $dep_sgs
518         fi
519
520         disable ${cfg}_checking
521     done
522 }
523
524 print_config_h(){
525     enabled $1 && v=1 || v=0
526     echo "#define $2 $v"
527 }
528
529 print_config_mak(){
530     enabled $1 && v= || v=!
531     echo "$v$2=yes"
532 }
533
534 print_config_asm(){
535     enabled $1 && echo "%define $2"
536 }
537
538 print_config(){
539     pfx=$1
540     files=$2
541     shift 2
542     for cfg; do
543         ucname="$(toupper $cfg)"
544         for f in $files; do
545             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
546         done
547     done
548 }
549
550 print_enabled(){
551     test "$1" = -n && end=" " && shift || end="\n"
552     suf=$1
553     shift
554     for v; do
555         enabled $v && printf "%s$end" ${v%$suf};
556     done
557 }
558
559 append(){
560     var=$1
561     shift
562     eval "$var=\"\$$var $*\""
563 }
564
565 prepend(){
566     var=$1
567     shift
568     eval "$var=\"$* \$$var\""
569 }
570
571 add_cppflags(){
572     append CPPFLAGS $($filter_cppflags "$@")
573 }
574
575 add_cflags(){
576     append CFLAGS $($filter_cflags "$@")
577 }
578
579 add_asflags(){
580     append ASFLAGS $($filter_asflags "$@")
581 }
582
583 add_ldflags(){
584     append LDFLAGS "$@"
585 }
586
587 add_extralibs(){
588     prepend extralibs "$@"
589 }
590
591 check_cmd(){
592     log "$@"
593     "$@" >> $logfile 2>&1
594 }
595
596 check_cc(){
597     log check_cc "$@"
598     cat > $TMPC
599     log_file $TMPC
600     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
601 }
602
603 check_cpp(){
604     log check_cpp "$@"
605     cat > $TMPC
606     log_file $TMPC
607     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
608 }
609
610 check_as(){
611     log check_as "$@"
612     cat > $TMPC
613     log_file $TMPC
614     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
615 }
616
617 check_asm(){
618     log check_asm "$@"
619     name="$1"
620     code="$2"
621     shift 2
622     disable $name
623     check_as "$@" <<EOF && enable $name
624 void foo(void){ __asm__ volatile($code); }
625 EOF
626 }
627
628 check_yasm(){
629     log check_yasm "$@"
630     echo "$1" > $TMPS
631     log_file $TMPS
632     shift 1
633     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
634 }
635
636 check_ld(){
637     log check_ld "$@"
638     flags=''
639     libs=''
640     for f; do
641         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
642     done
643     check_cc $($filter_cflags $flags) || return
644     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
645 }
646
647 check_cppflags(){
648     log check_cppflags "$@"
649     set -- $($filter_cppflags "$@")
650     check_cc "$@" <<EOF && append CPPFLAGS "$@"
651 int x;
652 EOF
653 }
654
655 check_cflags(){
656     log check_cflags "$@"
657     set -- $($filter_cflags "$@")
658     check_cc "$@" <<EOF && append CFLAGS "$@"
659 int x;
660 EOF
661 }
662
663 test_ldflags(){
664     log test_ldflags "$@"
665     check_ld "$@" <<EOF
666 int main(void){ return 0; }
667 EOF
668 }
669
670 check_ldflags(){
671     log check_ldflags "$@"
672     test_ldflags "$@" && add_ldflags "$@"
673 }
674
675 check_header(){
676     log check_header "$@"
677     header=$1
678     shift
679     disable_safe $header
680     check_cpp "$@" <<EOF && enable_safe $header
681 #include <$header>
682 int x;
683 EOF
684 }
685
686 check_func(){
687     log check_func "$@"
688     func=$1
689     shift
690     disable $func
691     check_ld "$@" <<EOF && enable $func
692 extern int $func();
693 int main(void){ $func(); }
694 EOF
695 }
696
697 check_mathfunc(){
698     log check_mathfunc "$@"
699     func=$1
700     shift
701     disable $func
702     check_ld "$@" <<EOF && enable $func
703 #include <math.h>
704 float foo(float f) { return $func(f); }
705 int main(void){ return 0; }
706 EOF
707 }
708
709 check_func_headers(){
710     log check_func_headers "$@"
711     headers=$1
712     funcs=$2
713     shift 2
714     {
715         for hdr in $headers; do
716             echo "#include <$hdr>"
717         done
718         for func in $funcs; do
719             echo "long check_$func(void) { return (long) $func; }"
720         done
721         echo "int main(void) { return 0; }"
722     } | check_ld "$@" && enable $funcs && enable_safe $headers
723 }
724
725 check_cpp_condition(){
726     log check_cpp_condition "$@"
727     header=$1
728     condition=$2
729     shift 2
730     check_cpp $($filter_cppflags "$@") <<EOF
731 #include <$header>
732 #if !($condition)
733 #error "unsatisfied condition: $condition"
734 #endif
735 EOF
736 }
737
738 check_lib(){
739     log check_lib "$@"
740     header="$1"
741     func="$2"
742     shift 2
743     check_header $header && check_func $func "$@" && add_extralibs "$@"
744 }
745
746 check_lib2(){
747     log check_lib2 "$@"
748     headers="$1"
749     funcs="$2"
750     shift 2
751     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
752 }
753
754 check_pkg_config(){
755     log check_pkg_config "$@"
756     pkg="$1"
757     headers="$2"
758     funcs="$3"
759     shift 3
760     $pkg_config --exists $pkg || return
761     pkg_cflags=$($pkg_config --cflags $pkg)
762     pkg_libs=$($pkg_config --libs $pkg)
763     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
764         set_safe ${pkg}_cflags $pkg_cflags   &&
765         set_safe ${pkg}_libs   $pkg_libs
766 }
767
768 check_exec(){
769     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
770 }
771
772 check_exec_crash(){
773     code=$(cat)
774
775     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
776     # are safe but may not be available everywhere.  Thus we use
777     # raise(SIGTERM) instead.  The check is run in a subshell so we
778     # can redirect the "Terminated" message from the shell.  SIGBUS
779     # is not defined by standard C so it is used conditionally.
780
781     (check_exec "$@") >> $logfile 2>&1 <<EOF
782 #include <signal.h>
783 static void sighandler(int sig){
784     raise(SIGTERM);
785 }
786 int main(void){
787     signal(SIGILL, sighandler);
788     signal(SIGFPE, sighandler);
789     signal(SIGSEGV, sighandler);
790 #ifdef SIGBUS
791     signal(SIGBUS, sighandler);
792 #endif
793     { $code }
794 }
795 EOF
796 }
797
798 check_type(){
799     log check_type "$@"
800     headers=$1
801     type=$2
802     shift 2
803     disable_safe "$type"
804     incs=""
805     for hdr in $headers; do
806         incs="$incs
807 #include <$hdr>"
808     done
809     check_cc "$@" <<EOF && enable_safe "$type"
810 $incs
811 $type v;
812 EOF
813 }
814
815 check_struct(){
816     log check_type "$@"
817     headers=$1
818     struct=$2
819     member=$3
820     shift 3
821     disable_safe "${struct}_${member}"
822     incs=""
823     for hdr in $headers; do
824         incs="$incs
825 #include <$hdr>"
826     done
827     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
828 $incs
829 const void *p = &(($struct *)0)->$member;
830 EOF
831 }
832
833 require(){
834     name="$1"
835     header="$2"
836     func="$3"
837     shift 3
838     check_lib $header $func "$@" || die "ERROR: $name not found"
839 }
840
841 require2(){
842     name="$1"
843     headers="$2"
844     func="$3"
845     shift 3
846     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
847 }
848
849 require_pkg_config(){
850     pkg="$1"
851     check_pkg_config "$@" || die "ERROR: $pkg not found"
852     add_cflags    $(get_safe ${pkg}_cflags)
853     add_extralibs $(get_safe ${pkg}_libs)
854 }
855
856 check_host_cc(){
857     log check_host_cc "$@"
858     cat > $TMPC
859     log_file $TMPC
860     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
861 }
862
863 check_host_cflags(){
864     log check_host_cflags "$@"
865     check_host_cc "$@" <<EOF && append host_cflags "$@"
866 int x;
867 EOF
868 }
869
870 apply(){
871     file=$1
872     shift
873     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
874 }
875
876 cp_if_changed(){
877     cmp -s "$1" "$2" &&
878         echo "$2 is unchanged" ||
879         cp -f "$1" "$2"
880 }
881
882 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
883 # system-dependent things.
884
885 COMPONENT_LIST="
886     bsfs
887     decoders
888     demuxers
889     encoders
890     filters
891     hwaccels
892     indevs
893     muxers
894     outdevs
895     parsers
896     protocols
897 "
898
899 CONFIG_LIST="
900     $COMPONENT_LIST
901     aandct
902     ac3dsp
903     avcodec
904     avdevice
905     avfilter
906     avformat
907     avisynth
908     bzlib
909     dct
910     doc
911     dwt
912     dxva2
913     fastdiv
914     ffmpeg
915     ffplay
916     ffprobe
917     ffserver
918     fft
919     frei0r
920     golomb
921     gpl
922     gray
923     h264dsp
924     h264pred
925     hardcoded_tables
926     huffman
927     libdc1394
928     libdirac
929     libfaac
930     libgsm
931     libmp3lame
932     libnut
933     libopencore_amrnb
934     libopencore_amrwb
935     libopencv
936     libopenjpeg
937     librtmp
938     libschroedinger
939     libspeex
940     libtheora
941     libvorbis
942     libvpx
943     libx264
944     libxavs
945     libxvid
946     lpc
947     lsp
948     mdct
949     memalign_hack
950     mlib
951     mpegaudio_hp
952     network
953     nonfree
954     pic
955     postproc
956     rdft
957     rtpdec
958     runtime_cpudetect
959     shared
960     sinewin
961     small
962     sram
963     static
964     swscale
965     swscale_alpha
966     vaapi
967     vdpau
968     version3
969     x11grab
970     zlib
971 "
972
973 THREADS_LIST='
974     pthreads
975     w32threads
976 '
977
978 ARCH_LIST='
979     alpha
980     arm
981     avr32
982     avr32_ap
983     avr32_uc
984     bfin
985     ia64
986     m68k
987     mips
988     mips64
989     parisc
990     ppc
991     ppc64
992     s390
993     sh4
994     sparc
995     sparc64
996     tomi
997     x86
998     x86_32
999     x86_64
1000 '
1001
1002 ARCH_EXT_LIST='
1003     altivec
1004     amd3dnow
1005     amd3dnowext
1006     armv5te
1007     armv6
1008     armv6t2
1009     armvfp
1010     avx
1011     iwmmxt
1012     mmi
1013     mmx
1014     mmx2
1015     neon
1016     ppc4xx
1017     sse
1018     ssse3
1019     vis
1020 '
1021
1022 HAVE_LIST_PUB='
1023     bigendian
1024     fast_unaligned
1025 '
1026
1027 HAVE_LIST="
1028     $ARCH_EXT_LIST
1029     $HAVE_LIST_PUB
1030     $THREADS_LIST
1031     aligned_stack
1032     alsa_asoundlib_h
1033     altivec_h
1034     arpa_inet_h
1035     attribute_may_alias
1036     attribute_packed
1037     bswap
1038     closesocket
1039     cmov
1040     conio_h
1041     dcbzl
1042     dev_bktr_ioctl_bt848_h
1043     dev_bktr_ioctl_meteor_h
1044     dev_ic_bt8xx_h
1045     dev_video_meteor_ioctl_meteor_h
1046     dev_video_bktr_ioctl_bt848_h
1047     dlfcn_h
1048     dlopen
1049     dos_paths
1050     ebp_available
1051     ebx_available
1052     exp2
1053     exp2f
1054     fast_64bit
1055     fast_clz
1056     fast_cmov
1057     fcntl
1058     fork
1059     getaddrinfo
1060     gethrtime
1061     GetProcessMemoryInfo
1062     GetProcessTimes
1063     getrusage
1064     gnu_as
1065     struct_rusage_ru_maxrss
1066     ibm_asm
1067     inet_aton
1068     inline_asm
1069     isatty
1070     ldbrx
1071     libdc1394_1
1072     libdc1394_2
1073     llrint
1074     llrintf
1075     local_aligned_16
1076     local_aligned_8
1077     log2
1078     log2f
1079     loongson
1080     lrint
1081     lrintf
1082     lzo1x_999_compress
1083     machine_ioctl_bt848_h
1084     machine_ioctl_meteor_h
1085     malloc_h
1086     MapViewOfFile
1087     memalign
1088     mkstemp
1089     mmap
1090     pld
1091     posix_memalign
1092     round
1093     roundf
1094     sdl
1095     sdl_video_size
1096     setmode
1097     socklen_t
1098     soundcard_h
1099     poll_h
1100     setrlimit
1101     strerror_r
1102     strtok_r
1103     struct_addrinfo
1104     struct_ipv6_mreq
1105     struct_sockaddr_in6
1106     struct_sockaddr_sa_len
1107     struct_sockaddr_storage
1108     symver
1109     symver_gnu_asm
1110     symver_asm_label
1111     sys_mman_h
1112     sys_resource_h
1113     sys_select_h
1114     sys_soundcard_h
1115     sys_videoio_h
1116     ten_operands
1117     termios_h
1118     threads
1119     truncf
1120     vfp_args
1121     VirtualAlloc
1122     winsock2_h
1123     xform_asm
1124     xmm_clobbers
1125     yasm
1126 "
1127
1128 # options emitted with CONFIG_ prefix but not available on command line
1129 CONFIG_EXTRA="
1130     avutil
1131     gplv3
1132     lgplv3
1133 "
1134
1135 CMDLINE_SELECT="
1136     $ARCH_EXT_LIST
1137     $CONFIG_LIST
1138     $THREADS_LIST
1139     asm
1140     cross_compile
1141     debug
1142     extra_warnings
1143     logging
1144     optimizations
1145     stripping
1146     symver
1147     yasm
1148 "
1149
1150 PATHS_LIST='
1151     bindir
1152     datadir
1153     incdir
1154     libdir
1155     mandir
1156     prefix
1157     shlibdir
1158 '
1159
1160 CMDLINE_SET="
1161     $PATHS_LIST
1162     ar
1163     arch
1164     as
1165     build_suffix
1166     cc
1167     cpu
1168     cross_prefix
1169     dep_cc
1170     extra_version
1171     host_cc
1172     host_cflags
1173     host_ldflags
1174     host_libs
1175     host_os
1176     ld
1177     logfile
1178     malloc_prefix
1179     nm
1180     pkg_config
1181     samples
1182     source_path
1183     strip
1184     sysinclude
1185     sysroot
1186     target_exec
1187     target_os
1188     target_path
1189 "
1190
1191 CMDLINE_APPEND="
1192     extra_cflags
1193 "
1194
1195 # code dependency declarations
1196
1197 # architecture extensions
1198
1199 armv5te_deps="arm"
1200 armv6_deps="arm"
1201 armv6t2_deps="arm"
1202 armvfp_deps="arm"
1203 iwmmxt_deps="arm"
1204 neon_deps="arm"
1205
1206 mmi_deps="mips"
1207
1208 altivec_deps="ppc"
1209 ppc4xx_deps="ppc"
1210
1211 vis_deps="sparc"
1212
1213 x86_64_suggest="cmov fast_cmov"
1214 amd3dnow_deps="mmx"
1215 amd3dnowext_deps="amd3dnow"
1216 mmx_deps="x86"
1217 mmx2_deps="mmx"
1218 sse_deps="mmx"
1219 ssse3_deps="sse"
1220 avx_deps="ssse3"
1221
1222 aligned_stack_if_any="ppc x86"
1223 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1224 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1225 fast_unaligned_if_any="armv6 ppc x86"
1226
1227 need_memalign="altivec neon sse"
1228 inline_asm_deps="!tms470"
1229
1230 symver_if_any="symver_asm_label symver_gnu_asm"
1231
1232 # subsystems
1233 dct_select="rdft"
1234 mdct_select="fft"
1235 rdft_select="fft"
1236
1237 # decoders / encoders / hardware accelerators
1238 aac_decoder_select="mdct rdft sinewin"
1239 aac_encoder_select="mdct sinewin"
1240 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1241 ac3_decoder_select="mdct ac3_parser"
1242 ac3_encoder_select="mdct ac3dsp"
1243 ac3_fixed_encoder_select="ac3dsp"
1244 alac_encoder_select="lpc"
1245 amrnb_decoder_select="lsp"
1246 amrwb_decoder_select="lsp"
1247 atrac1_decoder_select="mdct sinewin"
1248 atrac3_decoder_select="mdct"
1249 binkaudio_dct_decoder_select="mdct rdft dct"
1250 binkaudio_rdft_decoder_select="mdct rdft"
1251 cavs_decoder_select="golomb"
1252 cook_decoder_select="mdct sinewin"
1253 cscd_decoder_suggest="zlib"
1254 dca_decoder_select="mdct"
1255 dnxhd_encoder_select="aandct"
1256 dxa_decoder_select="zlib"
1257 eac3_decoder_select="ac3_decoder"
1258 eamad_decoder_select="aandct"
1259 eatgq_decoder_select="aandct"
1260 eatqi_decoder_select="aandct"
1261 ffv1_decoder_select="golomb"
1262 flac_decoder_select="golomb"
1263 flac_encoder_select="golomb lpc"
1264 flashsv_decoder_select="zlib"
1265 flashsv_encoder_select="zlib"
1266 flv_decoder_select="h263_decoder"
1267 flv_encoder_select="h263_encoder"
1268 fraps_decoder_select="huffman"
1269 h261_encoder_select="aandct"
1270 h263_decoder_select="h263_parser"
1271 h263_encoder_select="aandct"
1272 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1273 h263i_decoder_select="h263_decoder"
1274 h263p_encoder_select="h263_encoder"
1275 h264_decoder_select="golomb h264dsp h264pred"
1276 h264_dxva2_hwaccel_deps="dxva2api_h"
1277 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1278 h264_vaapi_hwaccel_select="vaapi"
1279 h264_vdpau_decoder_select="vdpau h264_decoder"
1280 imc_decoder_select="fft mdct"
1281 jpegls_decoder_select="golomb"
1282 jpegls_encoder_select="golomb"
1283 ljpeg_encoder_select="aandct"
1284 loco_decoder_select="golomb"
1285 mjpeg_encoder_select="aandct"
1286 mlp_decoder_select="mlp_parser"
1287 mp1float_decoder_select="dct"
1288 mp2float_decoder_select="dct"
1289 mp3adufloat_decoder_select="dct"
1290 mp3float_decoder_select="dct"
1291 mp3on4float_decoder_select="dct"
1292 mpeg1video_encoder_select="aandct"
1293 mpeg2video_encoder_select="aandct"
1294 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1295 mpeg4_encoder_select="h263_encoder"
1296 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1297 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1298 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1299 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1300 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1301 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1302 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1303 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1304 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1305 msmpeg4v1_decoder_select="h263_decoder"
1306 msmpeg4v1_encoder_select="h263_encoder"
1307 msmpeg4v2_decoder_select="h263_decoder"
1308 msmpeg4v2_encoder_select="h263_encoder"
1309 msmpeg4v3_decoder_select="h263_decoder"
1310 msmpeg4v3_encoder_select="h263_encoder"
1311 nellymoser_decoder_select="mdct sinewin"
1312 nellymoser_encoder_select="mdct sinewin"
1313 png_decoder_select="zlib"
1314 png_encoder_select="zlib"
1315 qcelp_decoder_select="lsp"
1316 qdm2_decoder_select="mdct rdft"
1317 ra_144_encoder_select="lpc"
1318 rv10_decoder_select="h263_decoder"
1319 rv10_encoder_select="h263_encoder"
1320 rv20_decoder_select="h263_decoder"
1321 rv20_encoder_select="h263_encoder"
1322 rv30_decoder_select="golomb h264pred"
1323 rv40_decoder_select="golomb h264pred"
1324 shorten_decoder_select="golomb"
1325 sipr_decoder_select="lsp"
1326 snow_decoder_select="dwt"
1327 snow_encoder_select="aandct dwt"
1328 svq1_encoder_select="aandct"
1329 svq3_decoder_select="golomb h264dsp h264pred"
1330 svq3_decoder_suggest="zlib"
1331 theora_decoder_select="vp3_decoder"
1332 tiff_decoder_suggest="zlib"
1333 tiff_encoder_suggest="zlib"
1334 truehd_decoder_select="mlp_decoder"
1335 tscc_decoder_select="zlib"
1336 twinvq_decoder_select="mdct lsp sinewin"
1337 vc1_decoder_select="h263_decoder"
1338 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1339 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1340 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1341 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1342 vorbis_decoder_select="mdct"
1343 vorbis_encoder_select="mdct"
1344 vp6_decoder_select="huffman"
1345 vp6a_decoder_select="vp6_decoder"
1346 vp6f_decoder_select="vp6_decoder"
1347 vp8_decoder_select="h264pred"
1348 wmapro_decoder_select="mdct sinewin"
1349 wmav1_decoder_select="mdct sinewin"
1350 wmav1_encoder_select="mdct sinewin"
1351 wmav2_decoder_select="mdct sinewin"
1352 wmav2_encoder_select="mdct sinewin"
1353 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1354 wmv1_decoder_select="h263_decoder"
1355 wmv1_encoder_select="h263_encoder"
1356 wmv2_decoder_select="h263_decoder"
1357 wmv2_encoder_select="h263_encoder"
1358 wmv3_decoder_select="vc1_decoder"
1359 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1360 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1361 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1362 zlib_decoder_select="zlib"
1363 zlib_encoder_select="zlib"
1364 zmbv_decoder_select="zlib"
1365 zmbv_encoder_select="zlib"
1366
1367 vaapi_deps="va_va_h"
1368 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1369
1370 # parsers
1371 h264_parser_select="golomb h264dsp h264pred"
1372
1373 # external libraries
1374 libdirac_decoder_deps="libdirac !libschroedinger"
1375 libdirac_encoder_deps="libdirac"
1376 libfaac_encoder_deps="libfaac"
1377 libgsm_decoder_deps="libgsm"
1378 libgsm_encoder_deps="libgsm"
1379 libgsm_ms_decoder_deps="libgsm"
1380 libgsm_ms_encoder_deps="libgsm"
1381 libmp3lame_encoder_deps="libmp3lame"
1382 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1383 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1384 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1385 libopenjpeg_decoder_deps="libopenjpeg"
1386 libschroedinger_decoder_deps="libschroedinger"
1387 libschroedinger_encoder_deps="libschroedinger"
1388 libspeex_decoder_deps="libspeex"
1389 libtheora_encoder_deps="libtheora"
1390 libvorbis_encoder_deps="libvorbis"
1391 libvpx_decoder_deps="libvpx"
1392 libvpx_encoder_deps="libvpx"
1393 libx264_encoder_deps="libx264"
1394 libxavs_encoder_deps="libxavs"
1395 libxvid_encoder_deps="libxvid"
1396
1397 # demuxers / muxers
1398 ac3_demuxer_select="ac3_parser"
1399 asf_stream_muxer_select="asf_muxer"
1400 avisynth_demuxer_deps="avisynth"
1401 dirac_demuxer_select="dirac_parser"
1402 eac3_demuxer_select="ac3_parser"
1403 flac_demuxer_select="flac_parser"
1404 ipod_muxer_select="mov_muxer"
1405 libnut_demuxer_deps="libnut"
1406 libnut_muxer_deps="libnut"
1407 matroska_audio_muxer_select="matroska_muxer"
1408 matroska_demuxer_suggest="zlib bzlib"
1409 mov_demuxer_suggest="zlib"
1410 mp3_demuxer_select="mpegaudio_parser"
1411 mp4_muxer_select="mov_muxer"
1412 mpegtsraw_demuxer_select="mpegts_demuxer"
1413 mxf_d10_muxer_select="mxf_muxer"
1414 ogg_demuxer_select="golomb"
1415 psp_muxer_select="mov_muxer"
1416 rtp_demuxer_select="sdp_demuxer"
1417 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1418 rtsp_demuxer_select="http_protocol rtpdec"
1419 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1420 sap_demuxer_select="sdp_demuxer"
1421 sap_muxer_select="rtp_muxer rtp_protocol"
1422 sdp_demuxer_select="rtpdec"
1423 spdif_muxer_select="aac_parser"
1424 tg2_muxer_select="mov_muxer"
1425 tgp_muxer_select="mov_muxer"
1426 w64_demuxer_deps="wav_demuxer"
1427
1428 # indevs / outdevs
1429 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1430 alsa_outdev_deps="alsa_asoundlib_h"
1431 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1432 dv1394_indev_deps="dv1394 dv_demuxer"
1433 jack_indev_deps="jack_jack_h"
1434 libdc1394_indev_deps="libdc1394"
1435 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1436 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1437 v4l_indev_deps="linux_videodev_h"
1438 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1439 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1440 vfwcap_indev_extralibs="-lavicap32"
1441 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1442 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1443
1444 # protocols
1445 gopher_protocol_deps="network"
1446 http_protocol_deps="network"
1447 http_protocol_select="tcp_protocol"
1448 mmsh_protocol_select="http_protocol"
1449 mmst_protocol_deps="network"
1450 rtmp_protocol_select="tcp_protocol"
1451 rtp_protocol_select="udp_protocol"
1452 tcp_protocol_deps="network"
1453 udp_protocol_deps="network"
1454
1455 # filters
1456 blackframe_filter_deps="gpl"
1457 cropdetect_filter_deps="gpl"
1458 frei0r_filter_deps="frei0r dlopen strtok_r"
1459 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1460 hqdn3d_filter_deps="gpl"
1461 scale_filter_deps="swscale"
1462 ocv_filter_deps="libopencv"
1463 yadif_filter_deps="gpl"
1464
1465 # libraries
1466 avdevice_deps="avcodec avformat"
1467 avformat_deps="avcodec"
1468
1469 # programs
1470 ffmpeg_deps="avcodec avformat swscale"
1471 ffmpeg_select="buffer_filter"
1472 ffplay_deps="avcodec avformat swscale sdl"
1473 ffplay_select="rdft"
1474 ffprobe_deps="avcodec avformat"
1475 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1476 ffserver_extralibs='$ldl'
1477
1478 doc_deps="texi2html"
1479
1480 # tests
1481
1482 test_deps(){
1483     suf1=$1
1484     suf2=$2
1485     shift 2
1486     for v; do
1487         dep=${v%=*}
1488         tests=${v#*=}
1489         for name in ${tests}; do
1490             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1491         done
1492     done
1493 }
1494
1495 set_ne_test_deps(){
1496     eval ${1}_be_test_deps="bigendian"
1497     eval ${1}_le_test_deps="!bigendian"
1498 }
1499
1500 test_deps _encoder _decoder                                             \
1501     adpcm_g726=g726                                                     \
1502     adpcm_ima_qt                                                        \
1503     adpcm_ima_wav                                                       \
1504     adpcm_ms                                                            \
1505     adpcm_swf                                                           \
1506     adpcm_yamaha=adpcm_yam                                              \
1507     alac                                                                \
1508     asv1                                                                \
1509     asv2                                                                \
1510     bmp                                                                 \
1511     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1512     dvvideo="dv dv50"                                                   \
1513     ffv1                                                                \
1514     flac                                                                \
1515     flashsv                                                             \
1516     flv                                                                 \
1517     gif                                                                 \
1518     h261                                                                \
1519     h263="h263 h263p"                                                   \
1520     huffyuv                                                             \
1521     jpegls                                                              \
1522     mjpeg="jpg mjpeg ljpeg"                                             \
1523     mp2                                                                 \
1524     mpeg1video="mpeg mpeg1b"                                            \
1525     mpeg2video="mpeg2 mpeg2thread"                                      \
1526     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1527     msmpeg4v3=msmpeg4                                                   \
1528     msmpeg4v2                                                           \
1529     pbm=pbmpipe                                                         \
1530     pcx                                                                 \
1531     pgm="pgm pgmpipe"                                                   \
1532     png                                                                 \
1533     ppm="ppm ppmpipe"                                                   \
1534     rawvideo="rgb yuv"                                                  \
1535     roq                                                                 \
1536     rv10                                                                \
1537     rv20                                                                \
1538     sgi                                                                 \
1539     snow="snow snowll"                                                  \
1540     svq1                                                                \
1541     targa=tga                                                           \
1542     tiff                                                                \
1543     wmav1                                                               \
1544     wmav2                                                               \
1545     wmv1                                                                \
1546     wmv2                                                                \
1547
1548 test_deps _muxer _demuxer                                               \
1549     aiff                                                                \
1550     pcm_alaw=alaw                                                       \
1551     asf                                                                 \
1552     au                                                                  \
1553     avi                                                                 \
1554     dv=dv_fmt                                                           \
1555     ffm                                                                 \
1556     flv=flv_fmt                                                         \
1557     gxf                                                                 \
1558     matroska=mkv                                                        \
1559     mmf                                                                 \
1560     mov                                                                 \
1561     pcm_mulaw=mulaw                                                     \
1562     mxf                                                                 \
1563     nut                                                                 \
1564     ogg                                                                 \
1565     rawvideo=pixfmt                                                     \
1566     rm                                                                  \
1567     swf                                                                 \
1568     mpegts=ts                                                           \
1569     voc                                                                 \
1570     wav                                                                 \
1571     yuv4mpegpipe=yuv4mpeg                                               \
1572
1573 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1574 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1575
1576 set_ne_test_deps pixdesc
1577 set_ne_test_deps pixfmts_copy
1578 set_ne_test_deps pixfmts_crop
1579 set_ne_test_deps pixfmts_hflip
1580 set_ne_test_deps pixfmts_null
1581 set_ne_test_deps pixfmts_pad
1582 set_ne_test_deps pixfmts_scale
1583 set_ne_test_deps pixfmts_vflip
1584
1585 # default parameters
1586
1587 logfile="config.log"
1588
1589 # installation paths
1590 prefix_default="/usr/local"
1591 bindir_default='${prefix}/bin'
1592 datadir_default='${prefix}/share/ffmpeg'
1593 incdir_default='${prefix}/include'
1594 libdir_default='${prefix}/lib'
1595 mandir_default='${prefix}/share/man'
1596 shlibdir_default="$libdir_default"
1597
1598 # toolchain
1599 ar_default="ar"
1600 cc_default="gcc"
1601 cc_version=\"unknown\"
1602 host_cc_default="gcc"
1603 ln_s="ln -sf"
1604 nm_default="nm"
1605 objformat="elf"
1606 pkg_config_default=pkg-config
1607 ranlib="ranlib"
1608 strip_default="strip"
1609 yasmexe="yasm"
1610 nogas=":"
1611
1612 nm_opts='-g'
1613
1614 # machine
1615 arch_default=$(uname -m)
1616 cpu="generic"
1617
1618 # OS
1619 target_os_default=$(tolower $(uname -s))
1620 host_os=$target_os_default
1621
1622 # configurable options
1623 enable avcodec
1624 enable avdevice
1625 enable avfilter
1626 enable avformat
1627 enable avutil
1628 enable asm
1629 enable debug
1630 enable doc
1631 enable fastdiv
1632 enable ffmpeg
1633 enable ffplay
1634 enable ffprobe
1635 enable ffserver
1636 enable mpegaudio_hp
1637 enable network
1638 enable optimizations
1639 enable protocols
1640 enable static
1641 enable stripping
1642 enable swscale
1643 enable swscale_alpha
1644
1645 # build settings
1646 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1647 FFSERVERLDFLAGS=-Wl,-E
1648 LIBPREF="lib"
1649 LIBSUF=".a"
1650 FULLNAME='$(NAME)$(BUILDSUF)'
1651 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1652 SLIBPREF="lib"
1653 SLIBSUF=".so"
1654 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1655 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1656 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1657 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1658
1659 CC_O='-o $@'
1660
1661 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1662 host_libs='-lm'
1663
1664 target_path='$(CURDIR)'
1665
1666 # since the object filename is not given with the -MM flag, the compiler
1667 # is only able to print the basename, and we must add the path ourselves
1668 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1669 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1670
1671 # find source path
1672 source_path="$(dirname "$0")"
1673 enable source_path_used
1674 if test -f configure; then
1675     source_path="$(pwd)"
1676     disable source_path_used
1677 else
1678     source_path="$(cd "$source_path"; pwd)"
1679     echo "$source_path" | grep -q '[[:blank:]]' &&
1680         die "Out of tree builds are impossible with whitespace in source path."
1681     test -e "$source_path/config.h" &&
1682         die "Out of tree builds are impossible with config.h in source dir."
1683 fi
1684
1685 for v in "$@"; do
1686     r=${v#*=}
1687     l=${v%"$r"}
1688     r=$(sh_quote "$r")
1689     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1690 done
1691
1692 find_things(){
1693     thing=$1
1694     pattern=$2
1695     file=$source_path/$3
1696     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1697 }
1698
1699 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1700 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1701 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1702 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1703 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1704 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1705 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1706 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1707 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1708 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1709 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1710
1711 find_tests(){
1712     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1713 }
1714
1715 ACODEC_TESTS=$(find_tests acodec)
1716 VCODEC_TESTS=$(find_tests vsynth1)
1717 LAVF_TESTS=$(find_tests lavf)
1718 LAVFI_TESTS=$(find_tests lavfi)
1719 SEEK_TESTS=$(find_tests seek seek_)
1720
1721 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1722
1723 for n in $COMPONENT_LIST; do
1724     v=$(toupper ${n%s})_LIST
1725     eval enable \$$v
1726     eval ${n}_if_any="\$$v"
1727 done
1728
1729 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1730
1731 die_unknown(){
1732     echo "Unknown option \"$1\"."
1733     echo "See $0 --help for available options."
1734     exit 1
1735 }
1736
1737 show_list() {
1738     suffix=_$1
1739     shift
1740     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1741     exit 0
1742 }
1743
1744 for opt do
1745     optval="${opt#*=}"
1746     case "$opt" in
1747     --extra-ldflags=*) add_ldflags $optval
1748     ;;
1749     --extra-libs=*) add_extralibs $optval
1750     ;;
1751     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1752     ;;
1753     --enable-debug=*) debuglevel="$optval"
1754     ;;
1755     --disable-everything)
1756     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1757     ;;
1758     --enable-*=*|--disable-*=*)
1759     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1760     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1761     eval list=\$$(toupper $thing)_LIST
1762     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1763     $action $(filter "$name" $list)
1764     ;;
1765     --enable-?*|--disable-?*)
1766     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1767     if is_in $option $COMPONENT_LIST; then
1768         test $action = disable && action=unset
1769         eval $action \$$(toupper ${option%s})_LIST
1770     elif is_in $option $CMDLINE_SELECT; then
1771         $action $option
1772     else
1773         die_unknown $opt
1774     fi
1775     ;;
1776     --list-*)
1777         NAME="${opt#--list-}"
1778         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1779         NAME=${NAME%s}
1780         eval show_list $NAME \$$(toupper $NAME)_LIST
1781     ;;
1782     --help|-h) show_help
1783     ;;
1784     *)
1785     optname="${opt%%=*}"
1786     optname="${optname#--}"
1787     optname=$(echo "$optname" | sed 's/-/_/g')
1788     if is_in $optname $CMDLINE_SET; then
1789         eval $optname='$optval'
1790     elif is_in $optname $CMDLINE_APPEND; then
1791         append $optname "$optval"
1792     else
1793          die_unknown $opt
1794     fi
1795     ;;
1796     esac
1797 done
1798
1799 disabled logging && logfile=/dev/null
1800
1801 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1802 set >> $logfile
1803
1804 test -n "$cross_prefix" && enable cross_compile
1805
1806 if enabled cross_compile; then
1807     test -n "$arch" && test -n "$target_os" ||
1808         die "Must specify target arch and OS when cross-compiling"
1809 fi
1810
1811 set_default arch target_os
1812
1813 ar_default="${cross_prefix}${ar_default}"
1814 cc_default="${cross_prefix}${cc_default}"
1815 nm_default="${cross_prefix}${nm_default}"
1816 pkg_config_default="${cross_prefix}${pkg_config_default}"
1817 ranlib="${cross_prefix}${ranlib}"
1818 strip_default="${cross_prefix}${strip_default}"
1819
1820 sysinclude_default="${sysroot}/usr/include"
1821
1822 set_default cc nm pkg_config strip sysinclude
1823 enabled cross_compile || host_cc_default=$cc
1824 set_default host_cc
1825
1826 exesuf() {
1827     case $1 in
1828         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1829     esac
1830 }
1831
1832 EXESUF=$(exesuf $target_os)
1833 HOSTEXESUF=$(exesuf $host_os)
1834
1835 # set temporary file name
1836 : ${TMPDIR:=$TEMPDIR}
1837 : ${TMPDIR:=$TMP}
1838 : ${TMPDIR:=/tmp}
1839
1840 if ! check_cmd mktemp -u XXXXXX; then
1841     # simple replacement for missing mktemp
1842     # NOT SAFE FOR GENERAL USE
1843     mktemp(){
1844         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1845     }
1846 fi
1847
1848 tmpfile(){
1849     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1850         (set -C; exec > $tmp) 2>/dev/null ||
1851         die "Unable to create temporary file in $TMPDIR."
1852     append TMPFILES $tmp
1853     eval $1=$tmp
1854 }
1855
1856 trap 'rm -f -- $TMPFILES' EXIT
1857
1858 tmpfile TMPC  .c
1859 tmpfile TMPE  $EXESUF
1860 tmpfile TMPH  .h
1861 tmpfile TMPO  .o
1862 tmpfile TMPS  .S
1863 tmpfile TMPV  .ver
1864 tmpfile TMPSH .sh
1865 tmpfile TMPASM .asm
1866
1867 unset -f mktemp
1868
1869 chmod +x $TMPE
1870
1871 # make sure we can execute files in $TMPDIR
1872 cat > $TMPSH 2>> $logfile <<EOF
1873 #! /bin/sh
1874 EOF
1875 chmod +x $TMPSH >> $logfile 2>&1
1876 if ! $TMPSH >> $logfile 2>&1; then
1877     cat <<EOF
1878 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1879 variable to another directory and make sure that it is not mounted noexec.
1880 EOF
1881     die "Sanity test failed."
1882 fi
1883
1884 filter_cflags=echo
1885 filter_cppflags=echo
1886 filter_asflags=echo
1887
1888 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1889     cc_type=llvm_gcc
1890     cc_version=__VERSION__
1891     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1892     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1893     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1894     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1895     speed_cflags='-O3'
1896     size_cflags='-Os'
1897 elif $cc -v 2>&1 | grep -qi ^gcc; then
1898     cc_type=gcc
1899     cc_version=__VERSION__
1900     gcc_version=$($cc --version | head -n1)
1901     gcc_basever=$($cc -dumpversion)
1902     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1903     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1904     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1905     if ! $cc -dumpversion | grep -q '^2\.'; then
1906         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1907         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1908     fi
1909     speed_cflags='-O3'
1910     size_cflags='-Os'
1911 elif $cc --version 2>/dev/null | grep -q Intel; then
1912     cc_type=icc
1913     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1914     cc_ident=$($cc --version | head -n1)
1915     icc_version=$($cc -dumpversion)
1916     CC_DEPFLAGS='-MMD'
1917     AS_DEPFLAGS='-MMD'
1918     speed_cflags='-O3'
1919     size_cflags='-Os'
1920     noopt_cflags='-O1'
1921 elif $cc -v 2>&1 | grep -q xlc; then
1922     cc_type=xlc
1923     cc_version="AV_STRINGIFY(__IBMC__)"
1924     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1925     speed_cflags='-O5'
1926     size_cflags='-O5 -qcompact'
1927 elif $cc -V 2>/dev/null | grep -q Compaq; then
1928     cc_type=ccc
1929     cc_version="AV_STRINGIFY(__DECC_VER)"
1930     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1931     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1932     debuglevel=3
1933     add_ldflags -Wl,-z,now # calls to libots crash without this
1934     speed_cflags='-fast'
1935     size_cflags='-O1'
1936 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1937     test -d "$sysroot" || die "No valid sysroot specified."
1938     cc_type=armcc
1939     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1940     cc_ident=$($cc --vsn | head -n1)
1941     armcc_conf="$PWD/armcc.conf"
1942     $cc --arm_linux_configure                 \
1943         --arm_linux_config_file="$armcc_conf" \
1944         --configure_sysroot="$sysroot"        \
1945         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1946         die "Error creating armcc configuration file."
1947     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1948     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1949     as_default="${cross_prefix}gcc"
1950     CC_DEPFLAGS='-MMD'
1951     AS_DEPFLAGS='-MMD'
1952     speed_cflags='-O3'
1953     size_cflags='-Os'
1954     filter_asflags="filter_out -W${armcc_opt}*"
1955 elif $cc -version 2>/dev/null | grep -q TMS470; then
1956     cc_type=tms470
1957     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1958     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1959     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1960     CC_O='-fr=$(@D)'
1961     as_default="${cross_prefix}gcc"
1962     ld_default="${cross_prefix}gcc"
1963     TMPO=$(basename $TMPC .c).o
1964     append TMPFILES $TMPO
1965     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1966     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1967     AS_DEPFLAGS='-MMD'
1968     speed_cflags='-O3 -mf=5'
1969     size_cflags='-O3 -mf=2'
1970     filter_cflags=tms470_flags
1971     tms470_flags(){
1972         for flag; do
1973             case $flag in
1974                 -march=*|-mcpu=*)
1975                     case "${flag#*=}" in
1976                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1977                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1978                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1979                         armv6*|arm11*)          echo -mv=6   ;;
1980                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1981                                                 echo -mv=5e  ;;
1982                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1983                     esac
1984                     ;;
1985                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1986                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1987                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1988                 -msoft-float)   echo --float_support=vfplib       ;;
1989                 -O[0-3]|-mf=*)  echo $flag                        ;;
1990                 -g)             echo -g -mn                       ;;
1991                 -pds=*)         echo $flag                        ;;
1992             esac
1993         done
1994     }
1995 elif $cc -v 2>&1 | grep -q clang; then
1996     cc_type=clang
1997     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1998         cc_version=__clang_version__ || cc_version=__VERSION__
1999     cc_ident=$($cc --version | head -n1)
2000     CC_DEPFLAGS='-MMD'
2001     AS_DEPFLAGS='-MMD'
2002     speed_cflags='-O3'
2003     size_cflags='-Os'
2004 elif $cc -V 2>&1 | grep -q Sun; then
2005     cc_type=suncc
2006     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2007     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2008     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2009     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2010     speed_cflags='-O5'
2011     size_cflags='-O5 -xspace'
2012     filter_cflags=suncc_flags
2013     suncc_flags(){
2014         for flag; do
2015             case $flag in
2016                 -march=*|-mcpu=*)
2017                     case "${flag#*=}" in
2018                         native)                   echo -xtarget=native       ;;
2019                         v9|niagara)               echo -xarch=sparc          ;;
2020                         ultrasparc)               echo -xarch=sparcvis       ;;
2021                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2022                         i586|pentium)             echo -xchip=pentium        ;;
2023                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2024                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2025                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2026                         pentium4*)          echo -xtarget=pentium4           ;;
2027                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2028                         *-sse3)             echo -xarch=sse3                 ;;
2029                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2030                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2031                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2032                         k8|opteron|athlon64|athlon-fx)
2033                                                   echo -xarch=sse2a          ;;
2034                         athlon*)                  echo -xarch=pentium_proa   ;;
2035                     esac
2036                     ;;
2037                 -std=c99)             echo -xc99              ;;
2038                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2039                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2040                 -W*,*)                echo $flag              ;;
2041                 -f*-*|-W*)                                    ;;
2042                 *)                    echo $flag              ;;
2043             esac
2044         done
2045     }
2046 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2047     cc_type=pathscale
2048     cc_version=__PATHSCALE__
2049     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2050     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2051     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2052     speed_cflags='-O2'
2053     size_cflags='-Os'
2054 elif $cc -v 2>&1 | grep -q Open64; then
2055     cc_type=open64
2056     cc_version=__OPEN64__
2057     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2058     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2059     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2060     speed_cflags='-O2'
2061     size_cflags='-Os'
2062 fi
2063
2064 test -n "$cc_type" && enable $cc_type ||
2065     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2066
2067 : ${as_default:=$cc}
2068 : ${dep_cc_default:=$cc}
2069 : ${ld_default:=$cc}
2070 set_default ar as dep_cc ld
2071
2072 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2073 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2074
2075 add_cflags $extra_cflags
2076 add_asflags $extra_cflags
2077
2078 if test -n "$sysroot"; then
2079     case "$cc_type" in
2080         gcc|llvm_gcc|clang)
2081             add_cppflags --sysroot="$sysroot"
2082             add_ldflags --sysroot="$sysroot"
2083         ;;
2084         tms470)
2085             add_cppflags -I"$sysinclude"
2086             add_ldflags  --sysroot="$sysroot"
2087         ;;
2088     esac
2089 fi
2090
2091 if test "$cpu" = host; then
2092     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2093
2094     case "$cc_type" in
2095         gcc|llvm_gcc)
2096             check_native(){
2097                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2098                 sed -n "/$1=/{
2099                             s/.*$1=\\([^ ]*\\).*/\\1/
2100                             p
2101                             q
2102                         }" $TMPE
2103             }
2104             cpu=$(check_native -march || check_native -mcpu)
2105         ;;
2106     esac
2107
2108     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2109 fi
2110
2111 # Deal with common $arch aliases
2112 case "$arch" in
2113     arm*)
2114         arch="arm"
2115     ;;
2116     mips|mipsel|IP*)
2117         arch="mips"
2118     ;;
2119     mips64*)
2120         arch="mips"
2121         subarch="mips64"
2122     ;;
2123     parisc|hppa)
2124         arch="parisc"
2125     ;;
2126     parisc64|hppa64)
2127         arch="parisc"
2128         subarch="parisc64"
2129     ;;
2130     "Power Macintosh"|ppc|powerpc)
2131         arch="ppc"
2132     ;;
2133     ppc64|powerpc64)
2134         arch="ppc"
2135         subarch="ppc64"
2136     ;;
2137     s390|s390x)
2138         arch="s390"
2139     ;;
2140     sh4|sh)
2141         arch="sh4"
2142     ;;
2143     sun4u|sparc64)
2144         arch="sparc"
2145         subarch="sparc64"
2146     ;;
2147     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2148         arch="x86"
2149     ;;
2150 esac
2151
2152 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2153 enable $arch
2154
2155 # Add processor-specific flags
2156 if test "$cpu" = generic; then
2157     : do nothing
2158 elif enabled ppc; then
2159
2160     case $(tolower $cpu) in
2161         601|ppc601|powerpc601)
2162             cpuflags="-mcpu=601"
2163             disable altivec
2164         ;;
2165         603*|ppc603*|powerpc603*)
2166             cpuflags="-mcpu=603"
2167             disable altivec
2168         ;;
2169         604*|ppc604*|powerpc604*)
2170             cpuflags="-mcpu=604"
2171             disable altivec
2172         ;;
2173         g3|75*|ppc75*|powerpc75*)
2174             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2175             disable altivec
2176         ;;
2177         g4|745*|ppc745*|powerpc745*)
2178             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2179         ;;
2180         74*|ppc74*|powerpc74*)
2181             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2182         ;;
2183         g5|970|ppc970|powerpc970|power4*)
2184             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2185         ;;
2186         cell)
2187             cpuflags="-mcpu=cell"
2188             enable ldbrx
2189         ;;
2190         e500v2)
2191             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2192             disable altivec
2193         ;;
2194         e500)
2195             cpuflags="-mcpu=8540 -mhard-float"
2196             disable altivec
2197         ;;
2198     esac
2199
2200 elif enabled x86; then
2201
2202     case $cpu in
2203         i[345]86|pentium)
2204             cpuflags="-march=$cpu"
2205             disable mmx
2206         ;;
2207         # targets that do NOT support conditional mov (cmov)
2208         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2209             cpuflags="-march=$cpu"
2210             disable cmov
2211         ;;
2212         # targets that do support conditional mov (cmov)
2213         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2214             cpuflags="-march=$cpu"
2215             enable cmov
2216             enable fast_cmov
2217         ;;
2218         # targets that do support conditional mov but on which it's slow
2219         pentium4|pentium4m|prescott|nocona)
2220             cpuflags="-march=$cpu"
2221             enable cmov
2222             disable fast_cmov
2223         ;;
2224     esac
2225
2226 elif enabled sparc; then
2227
2228     case $cpu in
2229         niagara)
2230             cpuflags="-mcpu=$cpu"
2231             disable vis
2232         ;;
2233         sparc64)
2234             cpuflags="-mcpu=v9"
2235         ;;
2236     esac
2237
2238 elif enabled arm; then
2239
2240     case $cpu in
2241         armv*)
2242             cpuflags="-march=$cpu"
2243             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2244         ;;
2245         *)
2246             cpuflags="-mcpu=$cpu"
2247             case $cpu in
2248                 cortex-a*)                               subarch=armv7a  ;;
2249                 cortex-r*)                               subarch=armv7r  ;;
2250                 cortex-m*)                               subarch=armv7m  ;;
2251                 arm11*)                                  subarch=armv6   ;;
2252                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2253                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2254             esac
2255         ;;
2256     esac
2257
2258 elif enabled alpha; then
2259
2260     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2261
2262 elif enabled bfin; then
2263
2264     cpuflags="-mcpu=$cpu"
2265
2266 elif enabled mips; then
2267
2268     cpuflags="-march=$cpu"
2269
2270 elif enabled avr32; then
2271
2272     case $cpu in
2273         ap7[02]0[0-2])
2274             subarch="avr32_ap"
2275             cpuflags="-mpart=$cpu"
2276         ;;
2277         ap)
2278             subarch="avr32_ap"
2279             cpuflags="-march=$cpu"
2280         ;;
2281         uc3[ab]*)
2282             subarch="avr32_uc"
2283             cpuflags="-mcpu=$cpu"
2284         ;;
2285         uc)
2286             subarch="avr32_uc"
2287             cpuflags="-march=$cpu"
2288         ;;
2289     esac
2290
2291 fi
2292
2293 add_cflags $cpuflags
2294 add_asflags $cpuflags
2295
2296 # compiler sanity check
2297 check_exec <<EOF
2298 int main(void){ return 0; }
2299 EOF
2300 if test "$?" != 0; then
2301     echo "$cc is unable to create an executable file."
2302     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2303         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2304         echo "Only do this if you know what cross compiling means."
2305     fi
2306     die "C compiler test failed."
2307 fi
2308
2309 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2310 check_cflags -std=c99
2311 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2312 #include <stdlib.h>
2313 EOF
2314 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2315 #include <stdlib.h>
2316 EOF
2317
2318 check_host_cflags -std=c99
2319
2320 case "$arch" in
2321     alpha|ia64|mips|parisc|sparc)
2322         spic=$shared
2323     ;;
2324     x86)
2325         subarch="x86_32"
2326         check_cc <<EOF && subarch="x86_64"
2327         int test[(int)sizeof(char*) - 7];
2328 EOF
2329         if test "$subarch" = "x86_64"; then
2330             spic=$shared
2331         fi
2332     ;;
2333 esac
2334
2335 enable $subarch
2336 enabled spic && enable pic
2337
2338 # OS specific
2339 case $target_os in
2340     haiku)
2341         prefix_default="/boot/common"
2342         network_extralibs="-lnetwork"
2343         host_libs=
2344         ;;
2345     sunos)
2346         FFSERVERLDFLAGS=""
2347         SHFLAGS='-shared -Wl,-h,$$(@F)'
2348         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2349         network_extralibs="-lsocket -lnsl"
2350         add_cppflags -D__EXTENSIONS__
2351         nm_opts='-P -g'
2352         ;;
2353     netbsd)
2354         disable symver
2355         oss_indev_extralibs="-lossaudio"
2356         oss_outdev_extralibs="-lossaudio"
2357         add_cppflags -D_XOPEN_SOURCE=600
2358         ;;
2359     openbsd)
2360         enable malloc_aligned
2361         # On OpenBSD 4.5. the compiler does not use PIC unless
2362         # explicitly using -fPIC. Libav builds fine without PIC,
2363         # however the generated executable will not do anything
2364         # (simply quits with exit-code 1, no crash, no output).
2365         # Thus explicitly enable PIC here.
2366         enable pic
2367         disable symver
2368         SHFLAGS='-shared'
2369         oss_indev_extralibs="-lossaudio"
2370         oss_outdev_extralibs="-lossaudio"
2371         ;;
2372     dragonfly)
2373         enable malloc_aligned
2374         disable symver
2375         ;;
2376     freebsd)
2377         enable malloc_aligned
2378         ;;
2379     bsd/os)
2380         add_extralibs -lpoll -lgnugetopt
2381         strip="strip -d"
2382         ;;
2383     darwin)
2384         enable malloc_aligned
2385         gas="gas-preprocessor.pl $cc"
2386         enabled ppc && add_asflags -force_cpusubtype_ALL
2387         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2388         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2389         strip="${strip} -x"
2390         add_ldflags -Wl,-dynamic,-search_paths_first
2391         SLIBSUF=".dylib"
2392         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2393         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2394         FFSERVERLDFLAGS=-Wl,-bind_at_load
2395         objformat="macho"
2396         enabled x86_64 && objformat="macho64"
2397         enabled_any pic shared ||
2398             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2399         ;;
2400     mingw32*)
2401         if test $target_os = "mingw32ce"; then
2402             disable network
2403         else
2404             target_os=mingw32
2405         fi
2406         LIBTARGET=i386
2407         if enabled x86_64; then
2408             enable malloc_aligned
2409             LIBTARGET=x64
2410         elif enabled arm; then
2411             LIBTARGET=arm
2412         fi
2413         shlibdir_default="$bindir_default"
2414         disable ffserver
2415         SLIBPREF=""
2416         SLIBSUF=".dll"
2417         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2418         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2419         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2420         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2421             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2422             install -d "$(LIBDIR)"; \
2423             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2424         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2425         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'
2426         objformat="win32"
2427         dlltool="${cross_prefix}dlltool"
2428         enable dos_paths
2429         check_cflags -fno-common
2430         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2431                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2432                 die "ERROR: MinGW runtime version must be >= 3.15."
2433         ;;
2434     cygwin*)
2435         target_os=cygwin
2436         shlibdir_default="$bindir_default"
2437         SLIBPREF="cyg"
2438         SLIBSUF=".dll"
2439         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2440         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2441         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2442         objformat="win32"
2443         enable dos_paths
2444         check_cflags -fno-common
2445         ;;
2446     *-dos|freedos|opendos)
2447         disable ffplay ffserver
2448         disable $INDEV_LIST $OUTDEV_LIST
2449         network_extralibs="-lsocket"
2450         objformat="coff"
2451         enable dos_paths
2452         ;;
2453     linux)
2454         enable dv1394
2455         ;;
2456     irix*)
2457         target_os=irix
2458         ranlib="echo ignoring ranlib"
2459         ;;
2460     os/2*)
2461         strip="lxlite -CS"
2462         ln_s="cp -f"
2463         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2464         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2465         FFSERVERLDFLAGS=""
2466         LIBSUF="_s.a"
2467         SLIBPREF=""
2468         SLIBSUF=".dll"
2469         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2470         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2471         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2472           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2473           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2474           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2475           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2476           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2477         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2478           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2479         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2480         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2481         enable dos_paths
2482         ;;
2483     gnu/kfreebsd)
2484         ;;
2485     gnu)
2486         ;;
2487     qnx)
2488         add_cppflags -D_QNX_SOURCE
2489         network_extralibs="-lsocket"
2490         ;;
2491     none)
2492         ;;
2493     *)
2494         die "Unknown OS '$target_os'."
2495         ;;
2496 esac
2497
2498 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2499
2500 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2501
2502 set_default $PATHS_LIST
2503
2504 # we need to build at least one lib type
2505 if ! enabled_any static shared; then
2506     cat <<EOF
2507 At least one library type must be built.
2508 Specify --enable-static to build the static libraries or --enable-shared to
2509 build the shared libraries as well. To only build the shared libraries specify
2510 --disable-static in addition to --enable-shared.
2511 EOF
2512     exit 1;
2513 fi
2514
2515 disabled static && LIBNAME=""
2516
2517 die_license_disabled() {
2518     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2519 }
2520
2521 die_license_disabled gpl libx264
2522 die_license_disabled gpl libxavs
2523 die_license_disabled gpl libxvid
2524 die_license_disabled gpl postproc
2525 die_license_disabled gpl x11grab
2526
2527 die_license_disabled nonfree libfaac
2528
2529 die_license_disabled version3 libopencore_amrnb
2530 die_license_disabled version3 libopencore_amrwb
2531
2532 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2533
2534 disabled optimizations || check_cflags -fomit-frame-pointer
2535
2536 enable_pic() {
2537     enable pic
2538     add_cppflags -DPIC
2539     add_cflags   -fPIC
2540     add_asflags  -fPIC
2541 }
2542
2543 enabled pic && enable_pic
2544
2545 check_cc <<EOF || die "Symbol mangling check failed."
2546 int ff_extern;
2547 EOF
2548 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2549 extern_prefix=${sym%%ff_extern*}
2550
2551 check_cc <<EOF && enable inline_asm
2552 void foo(void) { __asm__ volatile ("" ::); }
2553 EOF
2554
2555 _restrict=
2556 for restrict_keyword in restrict __restrict__ __restrict; do
2557     check_cc <<EOF && _restrict=$restrict_keyword && break
2558 void foo(char * $restrict_keyword p);
2559 EOF
2560 done
2561
2562 check_cc <<EOF && enable attribute_packed
2563 struct { int x; } __attribute__((packed)) x;
2564 EOF
2565
2566 check_cc <<EOF && enable attribute_may_alias
2567 union { int x; } __attribute__((may_alias)) x;
2568 EOF
2569
2570 check_cc <<EOF || die "endian test failed"
2571 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2572 EOF
2573 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2574
2575 if enabled alpha; then
2576
2577     check_cflags -mieee
2578
2579 elif enabled arm; then
2580
2581     check_cflags -marm
2582     nogas=die
2583
2584     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2585         enable vfp_args
2586     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2587         case "${cross_prefix:-$cc}" in
2588             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2589             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2590 __asm__ (".eabi_attribute 28, 1");
2591 int main(void) { return 0; }
2592 EOF
2593         esac
2594         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2595     fi
2596
2597     # We have to check if pld is a nop and disable it.
2598     check_asm pld '"pld [r0]"'
2599
2600     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2601     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2602     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2603     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2604     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2605     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2606
2607     enabled_all armv6t2 shared !pic && enable_pic
2608
2609 elif enabled mips; then
2610
2611     check_asm loongson '"dmult.g $1, $2, $3"'
2612     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2613
2614 elif enabled ppc; then
2615
2616     enable local_aligned_8 local_aligned_16
2617
2618     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2619     check_asm ibm_asm   '"add 0, 0, 0"'
2620     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2621     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2622
2623     # AltiVec flags: The FSF version of GCC differs from the Apple version
2624     if enabled altivec; then
2625         nogas=warn
2626         check_cflags -maltivec -mabi=altivec &&
2627         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2628         check_cflags -faltivec
2629
2630         # check if our compiler supports Motorola AltiVec C API
2631         check_cc <<EOF || disable altivec
2632 $inc_altivec_h
2633 int main(void) {
2634     vector signed int v1, v2, v3;
2635     v1 = vec_add(v2,v3);
2636     return 0;
2637 }
2638 EOF
2639
2640         # check if our compiler supports braces for vector declarations
2641         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2642 $inc_altivec_h
2643 int main (void) { (vector int) {1}; return 0; }
2644 EOF
2645     fi
2646
2647 elif enabled sparc; then
2648
2649     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2650         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2651
2652 elif enabled x86; then
2653
2654     enable local_aligned_8 local_aligned_16
2655
2656     # check whether EBP is available on x86
2657     # As 'i' is stored on the stack, this program will crash
2658     # if the base pointer is used to access it because the
2659     # base pointer is cleared in the inline assembly code.
2660     check_exec_crash <<EOF && enable ebp_available
2661     volatile int i=0;
2662     __asm__ volatile (
2663         "xorl %%ebp, %%ebp"
2664     ::: "%ebp");
2665     return i;
2666 EOF
2667
2668     # check whether EBX is available on x86
2669     check_asm ebx_available '""::"b"(0)' &&
2670         check_asm ebx_available '"":::"%ebx"'
2671
2672     # check whether xmm clobbers are supported
2673     check_asm xmm_clobbers '"":::"%xmm0"'
2674
2675     # check whether more than 10 operands are supported
2676     check_cc <<EOF && enable ten_operands
2677 int main(void) {
2678     int x=0;
2679     __asm__ volatile(
2680         ""
2681         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2682     );
2683     return 0;
2684 }
2685 EOF
2686
2687     # check whether binutils is new enough to compile SSSE3/MMX2
2688     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2689     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2690
2691     check_asm bswap '"bswap %%eax" ::: "%eax"'
2692
2693     if ! disabled_any asm mmx yasm; then
2694         if check_cmd $yasmexe --version; then
2695             enabled x86_64 && yasm_extra="-m amd64"
2696             yasm_debug="-g dwarf2"
2697         elif check_cmd nasm -v; then
2698             yasmexe=nasm
2699             yasm_debug="-g -F dwarf"
2700             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2701         fi
2702
2703         YASMFLAGS="-f $objformat $yasm_extra"
2704         enabled pic               && append YASMFLAGS "-DPIC"
2705         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2706         case "$objformat" in
2707             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2708         esac
2709
2710         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2711             die "yasm not found, use --disable-yasm for a crippled build"
2712         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2713     fi
2714
2715     case "$cpu" in
2716         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2717             disable fast_clz
2718         ;;
2719     esac
2720
2721 fi
2722
2723 if enabled asm; then
2724     as=${gas:=$as}
2725     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2726         $nogas "GNU assembler not found, install gas-preprocessor"
2727 fi
2728
2729 if check_func dlopen; then
2730     ldl=
2731 elif check_func dlopen -ldl; then
2732     ldl=-ldl
2733 fi
2734
2735 if enabled network; then
2736     check_type "sys/types.h sys/socket.h" socklen_t
2737     check_type netdb.h "struct addrinfo"
2738     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2739     check_type netinet/in.h "struct sockaddr_in6"
2740     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2741     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2742     # Prefer arpa/inet.h over winsock2
2743     if check_header arpa/inet.h ; then
2744         check_func closesocket
2745     elif check_header winsock2.h ; then
2746         check_func_headers winsock2.h closesocket -lws2 && \
2747             network_extralibs="-lws2" || \
2748         { check_func_headers winsock2.h closesocket -lws2_32 && \
2749             network_extralibs="-lws2_32"; }
2750         check_type ws2tcpip.h socklen_t
2751         check_type ws2tcpip.h "struct addrinfo"
2752         check_type ws2tcpip.h "struct ipv6_mreq"
2753         check_type ws2tcpip.h "struct sockaddr_in6"
2754         check_type ws2tcpip.h "struct sockaddr_storage"
2755         check_struct winsock2.h "struct sockaddr" sa_len
2756     else
2757         disable network
2758     fi
2759 fi
2760
2761 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2762 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2763
2764 check_func  fcntl
2765 check_func  fork
2766 check_func  getaddrinfo $network_extralibs
2767 check_func  gethrtime
2768 check_func  getrusage
2769 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2770 check_func  inet_aton $network_extralibs
2771 check_func  isatty
2772 check_func  ${malloc_prefix}memalign            && enable memalign
2773 check_func  mkstemp
2774 check_func  mmap
2775 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2776 check_func  setrlimit
2777 check_func  strerror_r
2778 check_func  strtok_r
2779 check_func_headers io.h setmode
2780 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2781 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2782 check_func_headers windows.h GetProcessTimes
2783 check_func_headers windows.h MapViewOfFile
2784 check_func_headers windows.h VirtualAlloc
2785
2786 check_header conio.h
2787 check_header dlfcn.h
2788 check_header dxva2api.h
2789 check_header malloc.h
2790 check_header poll.h
2791 check_header sys/mman.h
2792 check_header sys/resource.h
2793 check_header sys/select.h
2794 check_header termios.h
2795 check_header vdpau/vdpau.h
2796 check_header vdpau/vdpau_x11.h
2797 check_header X11/extensions/XvMClib.h
2798
2799 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2800
2801 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2802      enabled_any $need_memalign ; then
2803     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2804 fi
2805
2806 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2807 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2808
2809 # check for some common methods of building with pthread support
2810 # do this before the optional library checks as some of them require pthreads
2811 if ! disabled pthreads && ! enabled w32threads; then
2812     enable pthreads
2813     if check_func pthread_create; then
2814         :
2815     elif check_func pthread_create -pthread; then
2816         add_cflags -pthread
2817         add_extralibs -pthread
2818     elif check_func pthread_create -pthreads; then
2819         add_cflags -pthreads
2820         add_extralibs -pthreads
2821     elif check_func pthread_create -lpthreadGC2; then
2822         add_extralibs -lpthreadGC2
2823     elif ! check_lib pthread.h pthread_create -lpthread; then
2824         disable pthreads
2825     fi
2826 fi
2827
2828 for thread in $THREADS_LIST; do
2829     if enabled $thread; then
2830         test -n "$thread_type" &&
2831             die "ERROR: Only one thread type must be selected." ||
2832             thread_type="$thread"
2833     fi
2834 done
2835
2836 check_lib math.h sin -lm
2837 disabled vaapi || check_lib va/va.h vaInitialize -lva
2838
2839 check_mathfunc exp2
2840 check_mathfunc exp2f
2841 check_mathfunc llrint
2842 check_mathfunc llrintf
2843 check_mathfunc log2
2844 check_mathfunc log2f
2845 check_mathfunc lrint
2846 check_mathfunc lrintf
2847 check_mathfunc round
2848 check_mathfunc roundf
2849 check_mathfunc truncf
2850
2851 # these are off by default, so fail if requested and not available
2852 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2853 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2854 enabled libdirac   && require_pkg_config dirac                          \
2855     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2856     "dirac_decoder_init dirac_encoder_init"
2857 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2858 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2859 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2860 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2861 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2862 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2863 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2864 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2865 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2866 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2867 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2868 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2869 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2870 enabled libvpx     && {
2871     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2872                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2873     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2874                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2875 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2876                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2877                         die "ERROR: libx264 version must be >= 0.99."; }
2878 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2879 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2880 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2881
2882 # libdc1394 check
2883 if enabled libdc1394; then
2884     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2885         enable libdc1394_2; } ||
2886     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2887         enable libdc1394_1; } ||
2888     die "ERROR: No version of libdc1394 found "
2889 fi
2890
2891 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2892     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2893     enable sdl &&
2894     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2895 fi
2896
2897 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2898
2899 check_header linux/videodev.h
2900 check_header linux/videodev2.h
2901 check_header sys/videoio.h
2902
2903 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2904 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2905 # w32api 3.12 had it defined wrong
2906 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2907
2908 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2909 { check_header dev/bktr/ioctl_meteor.h &&
2910   check_header dev/bktr/ioctl_bt848.h; } ||
2911 { check_header machine/ioctl_meteor.h &&
2912   check_header machine/ioctl_bt848.h; } ||
2913 { check_header dev/video/meteor/ioctl_meteor.h &&
2914   check_header dev/video/bktr/ioctl_bt848.h; } ||
2915 check_header dev/ic/bt8xx.h
2916
2917 check_header sys/soundcard.h
2918 check_header soundcard.h
2919
2920 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2921
2922 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2923
2924 enabled x11grab                         &&
2925 check_header X11/Xlib.h                 &&
2926 check_header X11/extensions/XShm.h      &&
2927 check_header X11/extensions/Xfixes.h    &&
2928 check_func XOpenDisplay -lX11           &&
2929 check_func XShmCreateImage -lX11 -lXext &&
2930 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2931
2932 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2933 check_cpp_condition \
2934     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2935     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2936       disable vdpau; }
2937 fi
2938
2939 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2940
2941 # add some useful compiler flags if supported
2942 check_cflags -Wdeclaration-after-statement
2943 check_cflags -Wall
2944 check_cflags -Wno-parentheses
2945 check_cflags -Wno-switch
2946 check_cflags -Wdisabled-optimization
2947 check_cflags -Wpointer-arith
2948 check_cflags -Wredundant-decls
2949 check_cflags -Wno-pointer-sign
2950 check_cflags -Wcast-qual
2951 check_cflags -Wwrite-strings
2952 check_cflags -Wtype-limits
2953 check_cflags -Wundef
2954 check_cflags -Wmissing-prototypes
2955 enabled extra_warnings && check_cflags -Winline
2956
2957 # add some linker flags
2958 check_ldflags -Wl,--warn-common
2959 check_ldflags -Wl,--as-needed
2960 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'
2961 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2962
2963 echo "X{};" > $TMPV
2964 if test_ldflags -Wl,--version-script,$TMPV; then
2965     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2966     check_cc <<EOF && enable symver_asm_label
2967 void ff_foo(void) __asm__ ("av_foo@VERSION");
2968 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2969 EOF
2970     check_cc <<EOF && enable symver_gnu_asm
2971 __asm__(".symver ff_foo,av_foo@VERSION");
2972 void ff_foo(void) {}
2973 EOF
2974 fi
2975
2976 if enabled small; then
2977     add_cflags $size_cflags
2978     optimizations="small"
2979 elif enabled optimizations; then
2980     add_cflags $speed_cflags
2981 else
2982     add_cflags $noopt_cflags
2983 fi
2984 check_cflags -fno-math-errno
2985 check_cflags -fno-signed-zeros
2986
2987 if enabled icc; then
2988     # Just warnings, no remarks
2989     check_cflags -w1
2990     # -wd: Disable following warnings
2991     # 144, 167, 556: -Wno-pointer-sign
2992     # 10006: ignoring unknown option -fno-signed-zeros
2993     # 10148: ignoring unknown option -Wno-parentheses
2994     # 10156: ignoring option '-W'; no argument required
2995     check_cflags -wd144,167,556,10006,10148,10156
2996     # 11030: Warning unknown option --as-needed
2997     # 10156: ignoring option '-export'; no argument required
2998     check_ldflags -wd10156,11030
2999     # Allow to compile with optimizations
3000     check_ldflags -march=$cpu
3001     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3002     enable ebp_available
3003     if enabled x86_32; then
3004         test ${icc_version%%.*} -ge 11 && \
3005             check_cflags -falign-stack=maintain-16-byte || \
3006             disable aligned_stack
3007     fi
3008 elif enabled ccc; then
3009     # disable some annoying warnings
3010     add_cflags -msg_disable cvtu32to64
3011     add_cflags -msg_disable embedcomment
3012     add_cflags -msg_disable needconstext
3013     add_cflags -msg_disable nomainieee
3014     add_cflags -msg_disable ptrmismatch1
3015     add_cflags -msg_disable unreachcode
3016 elif enabled gcc; then
3017     check_cflags -fno-tree-vectorize
3018     check_cflags -Werror=implicit-function-declaration
3019     check_cflags -Werror=missing-prototypes
3020 elif enabled llvm_gcc; then
3021     check_cflags -mllvm -stack-alignment=16
3022 elif enabled clang; then
3023     check_cflags -mllvm -stack-alignment=16
3024     check_cflags -Qunused-arguments
3025 elif enabled armcc; then
3026     # 2523: use of inline assembler is deprecated
3027     add_cflags -W${armcc_opt},--diag_suppress=2523
3028     add_cflags -W${armcc_opt},--diag_suppress=1207
3029     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3030     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3031 elif enabled tms470; then
3032     add_cflags -pds=824 -pds=837
3033 elif enabled pathscale; then
3034     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3035 fi
3036
3037 enabled_any $THREADS_LIST      && enable threads
3038
3039 check_deps $CONFIG_LIST       \
3040            $CONFIG_EXTRA      \
3041            $HAVE_LIST         \
3042            $DECODER_LIST      \
3043            $ENCODER_LIST      \
3044            $HWACCEL_LIST      \
3045            $PARSER_LIST       \
3046            $BSF_LIST          \
3047            $DEMUXER_LIST      \
3048            $MUXER_LIST        \
3049            $FILTER_LIST       \
3050            $INDEV_LIST        \
3051            $OUTDEV_LIST       \
3052            $PROTOCOL_LIST     \
3053            $ACODEC_TESTS      \
3054            $VCODEC_TESTS      \
3055            $LAVF_TESTS        \
3056            $LAVFI_TESTS       \
3057            $SEEK_TESTS        \
3058
3059 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3060
3061 echo "install prefix            $prefix"
3062 echo "source path               $source_path"
3063 echo "C compiler                $cc"
3064 echo "ARCH                      $arch ($cpu)"
3065 if test "$build_suffix" != ""; then
3066     echo "build suffix              $build_suffix"
3067 fi
3068 if test "$extra_version" != ""; then
3069     echo "version string suffix     $extra_version"
3070 fi
3071 echo "big-endian                ${bigendian-no}"
3072 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3073 if enabled x86; then
3074     echo "yasm                      ${yasm-no}"
3075     echo "MMX enabled               ${mmx-no}"
3076     echo "MMX2 enabled              ${mmx2-no}"
3077     echo "3DNow! enabled            ${amd3dnow-no}"
3078     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3079     echo "SSE enabled               ${sse-no}"
3080     echo "SSSE3 enabled             ${ssse3-no}"
3081     echo "CMOV enabled              ${cmov-no}"
3082     echo "CMOV is fast              ${fast_cmov-no}"
3083     echo "EBX available             ${ebx_available-no}"
3084     echo "EBP available             ${ebp_available-no}"
3085     echo "10 operands supported     ${ten_operands-no}"
3086 fi
3087 if enabled arm; then
3088     echo "ARMv5TE enabled           ${armv5te-no}"
3089     echo "ARMv6 enabled             ${armv6-no}"
3090     echo "ARMv6T2 enabled           ${armv6t2-no}"
3091     echo "ARM VFP enabled           ${armvfp-no}"
3092     echo "IWMMXT enabled            ${iwmmxt-no}"
3093     echo "NEON enabled              ${neon-no}"
3094 fi
3095 if enabled mips; then
3096     echo "MMI enabled               ${mmi-no}"
3097 fi
3098 if enabled ppc; then
3099     echo "AltiVec enabled           ${altivec-no}"
3100     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3101     echo "dcbzl available           ${dcbzl-no}"
3102 fi
3103 if enabled sparc; then
3104     echo "VIS enabled               ${vis-no}"
3105 fi
3106 echo "debug symbols             ${debug-no}"
3107 echo "strip symbols             ${stripping-no}"
3108 echo "optimizations             ${optimizations-no}"
3109 echo "static                    ${static-no}"
3110 echo "shared                    ${shared-no}"
3111 echo "postprocessing support    ${postproc-no}"
3112 echo "new filter support        ${avfilter-no}"
3113 echo "network support           ${network-no}"
3114 echo "threading support         ${thread_type-no}"
3115 echo "SDL support               ${sdl-no}"
3116 echo "Sun medialib support      ${mlib-no}"
3117 echo "AVISynth enabled          ${avisynth-no}"
3118 echo "frei0r enabled            ${frei0r-no}"
3119 echo "libdc1394 support         ${libdc1394-no}"
3120 echo "libdirac enabled          ${libdirac-no}"
3121 echo "libfaac enabled           ${libfaac-no}"
3122 echo "libgsm enabled            ${libgsm-no}"
3123 echo "libmp3lame enabled        ${libmp3lame-no}"
3124 echo "libnut enabled            ${libnut-no}"
3125 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3126 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3127 echo "libopencv support         ${libopencv-no}"
3128 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3129 echo "librtmp enabled           ${librtmp-no}"
3130 echo "libschroedinger enabled   ${libschroedinger-no}"
3131 echo "libspeex enabled          ${libspeex-no}"
3132 echo "libtheora enabled         ${libtheora-no}"
3133 echo "libvorbis enabled         ${libvorbis-no}"
3134 echo "libvpx enabled            ${libvpx-no}"
3135 echo "libx264 enabled           ${libx264-no}"
3136 echo "libxavs enabled           ${libxavs-no}"
3137 echo "libxvid enabled           ${libxvid-no}"
3138 echo "zlib enabled              ${zlib-no}"
3139 echo "bzlib enabled             ${bzlib-no}"
3140 echo
3141
3142 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3143     echo "Enabled ${type}s:"
3144     eval list=\$$(toupper $type)_LIST
3145     print_enabled '_*' $list | sort | pr -r -3 -t
3146     echo
3147 done
3148
3149 license="LGPL version 2.1 or later"
3150 if enabled nonfree; then
3151     license="nonfree and unredistributable"
3152 elif enabled gplv3; then
3153     license="GPL version 3 or later"
3154 elif enabled lgplv3; then
3155     license="LGPL version 3 or later"
3156 elif enabled gpl; then
3157     license="GPL version 2 or later"
3158 fi
3159
3160 echo "License: $license"
3161
3162 echo "Creating config.mak and config.h..."
3163
3164 # build tree in object directory if source path is different from current one
3165 if enabled source_path_used; then
3166     DIRS="
3167         doc
3168         libavcodec
3169         libavcodec/$arch
3170         libavdevice
3171         libavfilter
3172         libavfilter/$arch
3173         libavformat
3174         libavutil
3175         libavutil/$arch
3176         libpostproc
3177         libswscale
3178         libswscale/$arch
3179         tests
3180         tools
3181     "
3182     FILES="
3183         Makefile
3184         common.mak
3185         subdir.mak
3186         doc/texi2pod.pl
3187         libavcodec/Makefile
3188         libavcodec/${arch}/Makefile
3189         libavdevice/Makefile
3190         libavfilter/Makefile
3191         libavfilter/${arch}/Makefile
3192         libavformat/Makefile
3193         libavutil/Makefile
3194         libpostproc/Makefile
3195         libswscale/Makefile
3196     "
3197     map 'mkdir -p $v' $DIRS;
3198     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3199 fi
3200
3201 enabled stripping || strip="echo skipping strip"
3202
3203 config_files="$TMPH config.mak"
3204
3205 cat > config.mak <<EOF
3206 # Automatically generated by configure - do not modify!
3207 ifndef LIBAV_CONFIG_MAK
3208 LIBAV_CONFIG_MAK=1
3209 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3210 prefix=$prefix
3211 LIBDIR=\$(DESTDIR)$libdir
3212 SHLIBDIR=\$(DESTDIR)$shlibdir
3213 INCDIR=\$(DESTDIR)$incdir
3214 BINDIR=\$(DESTDIR)$bindir
3215 DATADIR=\$(DESTDIR)$datadir
3216 MANDIR=\$(DESTDIR)$mandir
3217 SRC_PATH="$source_path"
3218 SRC_PATH_BARE=$source_path
3219 BUILD_ROOT="$PWD"
3220 CC_IDENT=$cc_ident
3221 ARCH=$arch
3222 CC=$cc
3223 AS=$as
3224 LD=$ld
3225 DEPCC=$dep_cc
3226 YASM=$yasmexe
3227 YASMDEP=$yasmexe
3228 AR=$ar
3229 RANLIB=$ranlib
3230 CP=cp -p
3231 LN_S=$ln_s
3232 STRIP=$strip
3233 CPPFLAGS=$CPPFLAGS
3234 CFLAGS=$CFLAGS
3235 ASFLAGS=$ASFLAGS
3236 CC_O=$CC_O
3237 DLLTOOL=$dlltool
3238 LDFLAGS=$LDFLAGS
3239 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3240 SHFLAGS=$SHFLAGS
3241 YASMFLAGS=$YASMFLAGS
3242 BUILDSUF=$build_suffix
3243 FULLNAME=$FULLNAME
3244 LIBPREF=$LIBPREF
3245 LIBSUF=$LIBSUF
3246 LIBNAME=$LIBNAME
3247 SLIBPREF=$SLIBPREF
3248 SLIBSUF=$SLIBSUF
3249 EXESUF=$EXESUF
3250 EXTRA_VERSION=$extra_version
3251 DEPFLAGS=$DEPFLAGS
3252 CCDEP=$CCDEP
3253 ASDEP=$ASDEP
3254 CC_DEPFLAGS=$CC_DEPFLAGS
3255 AS_DEPFLAGS=$AS_DEPFLAGS
3256 HOSTCC=$host_cc
3257 HOSTCFLAGS=$host_cflags
3258 HOSTEXESUF=$HOSTEXESUF
3259 HOSTLDFLAGS=$host_ldflags
3260 HOSTLIBS=$host_libs
3261 TARGET_EXEC=$target_exec
3262 TARGET_PATH=$target_path
3263 SDL_LIBS=$sdl_libs
3264 SDL_CFLAGS=$sdl_cflags
3265 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3266 EXTRALIBS=$extralibs
3267 INSTALL=install
3268 LIBTARGET=${LIBTARGET}
3269 SLIBNAME=${SLIBNAME}
3270 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3271 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3272 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3273 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3274 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3275 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3276 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3277 EOF
3278
3279 get_version(){
3280     name=$1
3281     file=$source_path/$2
3282     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3283     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3284     lcname=$(tolower $name)
3285     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3286     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3287 }
3288
3289 get_version LIBSWSCALE  libswscale/swscale.h
3290 get_version LIBPOSTPROC libpostproc/postprocess.h
3291 get_version LIBAVCODEC  libavcodec/avcodec.h
3292 get_version LIBAVDEVICE libavdevice/avdevice.h
3293 get_version LIBAVFORMAT libavformat/version.h
3294 get_version LIBAVUTIL   libavutil/avutil.h
3295 get_version LIBAVFILTER libavfilter/avfilter.h
3296
3297 cat > $TMPH <<EOF
3298 /* Automatically generated by configure - do not modify! */
3299 #ifndef LIBAV_CONFIG_H
3300 #define LIBAV_CONFIG_H
3301 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3302 #define LIBAV_LICENSE "$(c_escape $license)"
3303 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3304 #define CC_TYPE "$cc_type"
3305 #define CC_VERSION $cc_version
3306 #define restrict $_restrict
3307 #define EXTERN_PREFIX "${extern_prefix}"
3308 #define EXTERN_ASM ${extern_prefix}
3309 #define SLIBSUF "$SLIBSUF"
3310 EOF
3311
3312 test -n "$malloc_prefix" &&
3313     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3314
3315 if enabled small || disabled optimizations; then
3316     echo "#undef  av_always_inline"  >> $TMPH
3317     if enabled small; then
3318         echo "#define av_always_inline inline"  >> $TMPH
3319     else
3320         echo "#define av_always_inline av_unused"  >> $TMPH
3321     fi
3322 fi
3323
3324 if enabled yasm; then
3325     append config_files $TMPASM
3326     printf '' >$TMPASM
3327 fi
3328
3329 print_config ARCH_   "$config_files" $ARCH_LIST
3330 print_config HAVE_   "$config_files" $HAVE_LIST
3331 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3332                                      $CONFIG_EXTRA      \
3333                                      $DECODER_LIST      \
3334                                      $ENCODER_LIST      \
3335                                      $HWACCEL_LIST      \
3336                                      $PARSER_LIST       \
3337                                      $BSF_LIST          \
3338                                      $DEMUXER_LIST      \
3339                                      $MUXER_LIST        \
3340                                      $FILTER_LIST       \
3341                                      $PROTOCOL_LIST     \
3342                                      $INDEV_LIST        \
3343                                      $OUTDEV_LIST       \
3344
3345 cat >>config.mak <<EOF
3346 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3347 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3348 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3349 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3350 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3351 EOF
3352
3353 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3354 echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3355
3356 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3357 cp_if_changed $TMPH config.h
3358 touch .config
3359
3360 enabled yasm && cp_if_changed $TMPASM config.asm
3361
3362 cat > $TMPH <<EOF
3363 /* Generated by ffconf */
3364 #ifndef AVUTIL_AVCONFIG_H
3365 #define AVUTIL_AVCONFIG_H
3366 EOF
3367
3368 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3369
3370 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3371
3372 cp_if_changed $TMPH libavutil/avconfig.h
3373
3374 test -n "$WARNINGS" && printf "\n$WARNINGS"
3375
3376 # build pkg-config files
3377
3378 pkgconfig_generate(){
3379 name=$1
3380 shortname=${name#lib}${build_suffix}
3381 comment=$2
3382 version=$3
3383 libs=$4
3384 requires=$5
3385 enabled ${name#lib} || return 0
3386 cat <<EOF > $name/$name.pc
3387 prefix=$prefix
3388 exec_prefix=\${prefix}
3389 libdir=$libdir
3390 includedir=$incdir
3391
3392 Name: $name
3393 Description: $comment
3394 Version: $version
3395 Requires: $(enabled shared || echo $requires)
3396 Requires.private: $(enabled shared && echo $requires)
3397 Conflicts:
3398 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3399 Libs.private: $(enabled shared && echo $libs)
3400 Cflags: -I\${includedir}
3401 EOF
3402 cat <<EOF > $name/$name-uninstalled.pc
3403 prefix=
3404 exec_prefix=
3405 libdir=\${pcfiledir}
3406 includedir=${source_path}
3407
3408 Name: $name
3409 Description: $comment
3410 Version: $version
3411 Requires: $requires
3412 Conflicts:
3413 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3414 Cflags: -I\${includedir}
3415 EOF
3416 }
3417
3418 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION"
3419 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3420 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3421 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3422 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3423 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION"
3424 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"