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[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avcore         disable libavcore build
90   --disable-avformat       disable libavformat build
91   --disable-swscale        disable libswscale build
92   --enable-postproc        enable GPLed postprocessing support [no]
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --enable-w32threads      use Win32 threads [no]
96   --enable-x11grab         enable X11 grabbing [no]
97   --disable-network        disable network support [no]
98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101   --disable-fastdiv        disable table-based division
102   --enable-small           optimize for size instead of speed
103   --disable-aandct         disable AAN DCT code
104   --disable-dct            disable DCT code
105   --disable-fft            disable FFT code
106   --disable-golomb         disable Golomb code
107   --disable-huffman        disable Huffman code
108   --disable-lpc            disable LPC code
109   --disable-mdct           disable MDCT code
110   --disable-rdft           disable RDFT code
111   --disable-vaapi          disable VAAPI code
112   --disable-vdpau          disable VDPAU code
113   --disable-dxva2          disable DXVA2 code
114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
117   --disable-everything     disable all components listed below
118   --disable-encoder=NAME   disable encoder NAME
119   --enable-encoder=NAME    enable encoder NAME
120   --disable-encoders       disable all encoders
121   --disable-decoder=NAME   disable decoder NAME
122   --enable-decoder=NAME    enable decoder NAME
123   --disable-decoders       disable all decoders
124   --disable-hwaccel=NAME   disable hwaccel NAME
125   --enable-hwaccel=NAME    enable hwaccel NAME
126   --disable-hwaccels       disable all hwaccels
127   --disable-muxer=NAME     disable muxer NAME
128   --enable-muxer=NAME      enable muxer NAME
129   --disable-muxers         disable all muxers
130   --disable-demuxer=NAME   disable demuxer NAME
131   --enable-demuxer=NAME    enable demuxer NAME
132   --disable-demuxers       disable all demuxers
133   --enable-parser=NAME     enable parser NAME
134   --disable-parser=NAME    disable parser NAME
135   --disable-parsers        disable all parsers
136   --enable-bsf=NAME        enable bitstream filter NAME
137   --disable-bsf=NAME       disable bitstream filter NAME
138   --disable-bsfs           disable all bitstream filters
139   --enable-protocol=NAME   enable protocol NAME
140   --disable-protocol=NAME  disable protocol NAME
141   --disable-protocols      disable all protocols
142   --disable-indev=NAME     disable input device NAME
143   --disable-outdev=NAME    disable output device NAME
144   --disable-indevs         disable input devices
145   --disable-outdevs        disable output devices
146   --disable-devices        disable all devices
147   --enable-filter=NAME     enable filter NAME
148   --disable-filter=NAME    disable filter NAME
149   --disable-filters        disable all filters
150   --list-decoders          show all available decoders
151   --list-encoders          show all available encoders
152   --list-hwaccels          show all available hardware accelerators
153   --list-muxers            show all available muxers
154   --list-demuxers          show all available demuxers
155   --list-parsers           show all available parsers
156   --list-protocols         show all available protocols
157   --list-bsfs              show all available bitstream filters
158   --list-indevs            show all available input devices
159   --list-outdevs           show all available output devices
160   --list-filters           show all available filters
161
162 External library support:
163   --enable-avisynth        enable reading of AVISynth script files [no]
164   --enable-bzlib           enable bzlib [autodetect]
165   --enable-frei0r          enable frei0r video filtering
166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
168   --enable-libopencv       enable video filtering via libopencv [no]
169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
170                            and libraw1394 [no]
171   --enable-libdirac        enable Dirac support via libdirac [no]
172   --enable-libfaac         enable FAAC support via libfaac [no]
173   --enable-libgsm          enable GSM support via libgsm [no]
174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
175   --enable-libnut          enable NUT (de)muxing via libnut,
176                            native (de)muxer exists [no]
177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
180   --enable-libspeex        enable Speex decoding via libspeex [no]
181   --enable-libtheora       enable Theora encoding via libtheora [no]
182   --enable-libvorbis       enable Vorbis encoding via libvorbis,
183                            native implementation exists [no]
184   --enable-libvpx          enable VP8 support via libvpx [no]
185   --enable-libx264         enable H.264 encoding via x264 [no]
186   --enable-libxavs         enable AVS encoding via xavs [no]
187   --enable-libxvid         enable Xvid encoding via xvidcore,
188                            native MPEG-4/Xvid encoder exists [no]
189   --enable-mlib            enable Sun medialib [no]
190   --enable-zlib            enable zlib [autodetect]
191
192 Advanced options (experts only):
193   --source-path=PATH       path to source code [$source_path]
194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
195   --enable-cross-compile   assume a cross-compiler is used
196   --sysroot=PATH           root of cross-build tree
197   --sysinclude=PATH        location of cross-build system headers
198   --target-os=OS           compiler targets OS [$target_os]
199   --target-exec=CMD        command to run executables on target
200   --target-path=DIR        path to view of build directory on target
201   --nm=NM                  use nm tool
202   --ar=AR                  use archive tool AR [$ar_default]
203   --as=AS                  use assembler AS [$as_default]
204   --cc=CC                  use C compiler CC [$cc_default]
205   --ld=LD                  use linker LD
206   --host-cc=HOSTCC         use host C compiler HOSTCC
207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
209   --host-libs=HLIBS        use libs HLIBS when linking for host
210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
213   --extra-version=STRING   version string suffix []
214   --build-suffix=SUFFIX    library name suffix []
215   --arch=ARCH              select architecture [$arch]
216   --cpu=CPU                select the minimum required CPU (affects
217                            instruction selection, may crash on older CPUs)
218   --disable-asm            disable all assembler optimizations
219   --disable-altivec        disable AltiVec optimizations
220   --disable-amd3dnow       disable 3DNow! optimizations
221   --disable-amd3dnowext    disable 3DNow! extended optimizations
222   --disable-mmx            disable MMX optimizations
223   --disable-mmx2           disable MMX2 optimizations
224   --disable-sse            disable SSE optimizations
225   --disable-ssse3          disable SSSE3 optimizations
226   --disable-armv5te        disable armv5te optimizations
227   --disable-armv6          disable armv6 optimizations
228   --disable-armv6t2        disable armv6t2 optimizations
229   --disable-armvfp         disable ARM VFP optimizations
230   --disable-iwmmxt         disable iwmmxt optimizations
231   --disable-mmi            disable MMI optimizations
232   --disable-neon           disable neon optimizations
233   --disable-vis            disable VIS optimizations
234   --disable-yasm           disable use of yasm assembler
235   --enable-pic             build position-independent code
236   --malloc-prefix=PFX      prefix malloc and related names with PFX
237   --enable-sram            allow use of on-chip SRAM
238   --disable-symver         disable symbol versioning
239
240 Developer options (useful when working on FFmpeg itself):
241   --disable-debug          disable debugging symbols
242   --enable-debug=LEVEL     set the debug level [$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
247
248 NOTE: Object files are built at the place where configure is launched.
249 EOF
250   exit 0
251 }
252
253 quotes='""'
254
255 log(){
256     echo "$@" >> $logfile
257 }
258
259 log_file(){
260     log BEGIN $1
261     pr -n -t $1 >> $logfile
262     log END $1
263 }
264
265 echolog(){
266     log "$@"
267     echo "$@"
268 }
269
270 warn(){
271     log "WARNING: $*"
272     WARNINGS="${WARNINGS}WARNING: $*\n"
273 }
274
275 die(){
276     echolog "$@"
277     cat <<EOF
278
279 If you think configure made a mistake, make sure you are using the latest
280 version from Git.  If the latest version fails, report the problem to the
281 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
282 EOF
283     if disabled logging; then
284         cat <<EOF
285 Rerun configure with logging enabled (do not use --disable-logging), and
286 include the log this produces with your report.
287 EOF
288     else
289 cat <<EOF
290 Include the log file "$logfile" produced by configure as this will help
291 solving the problem.
292 EOF
293     fi
294     exit 1
295 }
296
297 # Avoid locale weirdness, besides we really just want to translate ASCII.
298 toupper(){
299     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
300 }
301
302 tolower(){
303     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
304 }
305
306 c_escape(){
307     echo "$*" | sed 's/["\\]/\\\0/g'
308 }
309
310 sh_quote(){
311     v=$(echo "$1" | sed "s/'/'\\\\''/g")
312     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
313     echo "$v"
314 }
315
316 filter(){
317     pat=$1
318     shift
319     for v; do
320         eval "case $v in $pat) echo $v ;; esac"
321     done
322 }
323
324 filter_out(){
325     pat=$1
326     shift
327     for v; do
328         eval "case $v in $pat) ;; *) echo $v ;; esac"
329     done
330 }
331
332 map(){
333     m=$1
334     shift
335     for v; do eval $m; done
336 }
337
338 set_all(){
339     value=$1
340     shift
341     for var in $*; do
342         eval $var=$value
343     done
344 }
345
346 set_weak(){
347     value=$1
348     shift
349     for var; do
350         eval : \${$var:=$value}
351     done
352 }
353
354 pushvar(){
355     for var in $*; do
356         eval level=\${${var}_level:=0}
357         eval ${var}_${level}="\$$var"
358         eval ${var}_level=$(($level+1))
359     done
360 }
361
362 popvar(){
363     for var in $*; do
364         eval level=\${${var}_level:-0}
365         test $level = 0 && continue
366         eval level=$(($level-1))
367         eval $var="\${${var}_${level}}"
368         eval ${var}_level=$level
369         eval unset ${var}_${level}
370     done
371 }
372
373 enable(){
374     set_all yes $*
375 }
376
377 disable(){
378     set_all no $*
379 }
380
381 enable_weak(){
382     set_weak yes $*
383 }
384
385 disable_weak(){
386     set_weak no $*
387 }
388
389 enable_safe(){
390     for var; do
391         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
392     done
393 }
394
395 disable_safe(){
396     for var; do
397         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
398     done
399 }
400
401 do_enable_deep(){
402     for var; do
403         enabled $var && continue
404         eval sel="\$${var}_select"
405         eval sgs="\$${var}_suggest"
406         pushvar var sgs
407         enable_deep $sel
408         popvar sgs
409         enable_deep_weak $sgs
410         popvar var
411     done
412 }
413
414 enable_deep(){
415     do_enable_deep $*
416     enable $*
417 }
418
419 enable_deep_weak(){
420     do_enable_deep $*
421     enable_weak $*
422 }
423
424 enabled(){
425     test "${1#!}" = "$1" && op== || op=!=
426     eval test "x\$${1#!}" $op "xyes"
427 }
428
429 disabled(){
430     test "${1#!}" = "$1" && op== || op=!=
431     eval test "x\$${1#!}" $op "xno"
432 }
433
434 enabled_all(){
435     for opt; do
436         enabled $opt || return 1
437     done
438 }
439
440 disabled_all(){
441     for opt; do
442         disabled $opt || return 1
443     done
444 }
445
446 enabled_any(){
447     for opt; do
448         enabled $opt && return 0
449     done
450 }
451
452 disabled_any(){
453     for opt; do
454         disabled $opt && return 0
455     done
456     return 1
457 }
458
459 set_default(){
460     for opt; do
461         eval : \${$opt:=\$${opt}_default}
462     done
463 }
464
465 is_in(){
466     value=$1
467     shift
468     for var in $*; do
469         [ $var = $value ] && return 0
470     done
471     return 1
472 }
473
474 check_deps(){
475     for cfg; do
476         cfg="${cfg#!}"
477         enabled ${cfg}_checking && die "Circular dependency for $cfg."
478         disabled ${cfg}_checking && continue
479         enable ${cfg}_checking
480
481         eval dep_all="\$${cfg}_deps"
482         eval dep_any="\$${cfg}_deps_any"
483         eval dep_sel="\$${cfg}_select"
484         eval dep_sgs="\$${cfg}_suggest"
485         eval dep_ifa="\$${cfg}_if"
486         eval dep_ifn="\$${cfg}_if_any"
487
488         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
489         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
490         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
491
492         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
493         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
494         enabled_all  $dep_all || disable $cfg
495         enabled_any  $dep_any || disable $cfg
496         disabled_any $dep_sel && disable $cfg
497
498         if enabled $cfg; then
499             eval dep_extralibs="\$${cfg}_extralibs"
500             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
501             enable_deep $dep_sel
502             enable_deep_weak $dep_sgs
503         fi
504
505         disable ${cfg}_checking
506     done
507 }
508
509 print_config_h(){
510     enabled $1 && v=1 || v=0
511     echo "#define $2 $v"
512 }
513
514 print_config_mak(){
515     enabled $1 && v= || v=!
516     echo "$v$2=yes"
517 }
518
519 print_config_asm(){
520     enabled $1 && echo "%define $2"
521 }
522
523 print_config(){
524     pfx=$1
525     files=$2
526     shift 2
527     for cfg; do
528         ucname="$(toupper $cfg)"
529         for f in $files; do
530             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
531         done
532     done
533 }
534
535 print_enabled(){
536     test "$1" = -n && end=" " && shift || end="\n"
537     suf=$1
538     shift
539     for v; do
540         enabled $v && printf "%s$end" ${v%$suf};
541     done
542 }
543
544 append(){
545     var=$1
546     shift
547     eval "$var=\"\$$var $*\""
548 }
549
550 prepend(){
551     var=$1
552     shift
553     eval "$var=\"$* \$$var\""
554 }
555
556 add_cppflags(){
557     append CPPFLAGS $($filter_cppflags "$@")
558 }
559
560 add_cflags(){
561     append CFLAGS $($filter_cflags "$@")
562 }
563
564 add_asflags(){
565     append ASFLAGS $($filter_asflags "$@")
566 }
567
568 add_ldflags(){
569     append LDFLAGS "$@"
570 }
571
572 add_extralibs(){
573     prepend extralibs "$@"
574 }
575
576 check_cmd(){
577     log "$@"
578     "$@" >> $logfile 2>&1
579 }
580
581 check_cc(){
582     log check_cc "$@"
583     cat > $TMPC
584     log_file $TMPC
585     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
586 }
587
588 check_cpp(){
589     log check_cpp "$@"
590     cat > $TMPC
591     log_file $TMPC
592     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
593 }
594
595 check_as(){
596     log check_as "$@"
597     cat > $TMPC
598     log_file $TMPC
599     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
600 }
601
602 check_asm(){
603     log check_asm "$@"
604     name="$1"
605     code="$2"
606     shift 2
607     disable $name
608     check_as "$@" <<EOF && enable $name
609 void foo(void){ __asm__ volatile($code); }
610 EOF
611 }
612
613 check_yasm(){
614     log check_yasm "$@"
615     echo "$1" > $TMPS
616     log_file $TMPS
617     shift 1
618     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
619 }
620
621 check_ld(){
622     log check_ld "$@"
623     flags=''
624     libs=''
625     for f; do
626         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
627     done
628     check_cc $($filter_cflags $flags) || return
629     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
630 }
631
632 check_cppflags(){
633     log check_cppflags "$@"
634     set -- $($filter_cppflags "$@")
635     check_cc "$@" <<EOF && append CPPFLAGS "$@"
636 int x;
637 EOF
638 }
639
640 check_cflags(){
641     log check_cflags "$@"
642     set -- $($filter_cflags "$@")
643     check_cc "$@" <<EOF && append CFLAGS "$@"
644 int x;
645 EOF
646 }
647
648 test_ldflags(){
649     log test_ldflags "$@"
650     check_ld "$@" <<EOF
651 int main(void){ return 0; }
652 EOF
653 }
654
655 check_ldflags(){
656     log check_ldflags "$@"
657     test_ldflags "$@" && add_ldflags "$@"
658 }
659
660 check_header(){
661     log check_header "$@"
662     header=$1
663     shift
664     disable_safe $header
665     check_cpp "$@" <<EOF && enable_safe $header
666 #include <$header>
667 int x;
668 EOF
669 }
670
671 check_func(){
672     log check_func "$@"
673     func=$1
674     shift
675     disable $func
676     check_ld "$@" <<EOF && enable $func
677 extern int $func();
678 int main(void){ $func(); }
679 EOF
680 }
681
682 check_mathfunc(){
683     log check_mathfunc "$@"
684     func=$1
685     shift
686     disable $func
687     check_ld "$@" <<EOF && enable $func
688 #include <math.h>
689 float foo(float f) { return $func(f); }
690 int main(void){ return 0; }
691 EOF
692 }
693
694 check_func_headers(){
695     log check_func_headers "$@"
696     headers=$1
697     func=$2
698     shift 2
699     disable $func
700     incs=""
701     for hdr in $headers; do
702         incs="$incs
703 #include <$hdr>"
704     done
705     check_ld "$@" <<EOF && enable $func && enable_safe $headers
706 $incs
707 int main(int argc, char **argv){
708     return (long) $func;
709 }
710 EOF
711 }
712
713 check_cpp_condition(){
714     log check_cpp_condition "$@"
715     header=$1
716     condition=$2
717     shift 2
718     check_cpp $($filter_cppflags "$@") <<EOF
719 #include <$header>
720 #if !($condition)
721 #error "unsatisfied condition: $condition"
722 #endif
723 EOF
724 }
725
726 check_lib(){
727     log check_lib "$@"
728     header="$1"
729     func="$2"
730     shift 2
731     check_header $header && check_func $func "$@" && add_extralibs "$@"
732 }
733
734 check_lib2(){
735     log check_lib2 "$@"
736     headers="$1"
737     func="$2"
738     shift 2
739     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
740 }
741
742 check_exec(){
743     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
744 }
745
746 check_exec_crash(){
747     code=$(cat)
748
749     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
750     # are safe but may not be available everywhere.  Thus we use
751     # raise(SIGTERM) instead.  The check is run in a subshell so we
752     # can redirect the "Terminated" message from the shell.  SIGBUS
753     # is not defined by standard C so it is used conditionally.
754
755     (check_exec "$@") >> $logfile 2>&1 <<EOF
756 #include <signal.h>
757 static void sighandler(int sig){
758     raise(SIGTERM);
759 }
760 int main(void){
761     signal(SIGILL, sighandler);
762     signal(SIGFPE, sighandler);
763     signal(SIGSEGV, sighandler);
764 #ifdef SIGBUS
765     signal(SIGBUS, sighandler);
766 #endif
767     { $code }
768 }
769 EOF
770 }
771
772 check_type(){
773     log check_type "$@"
774     headers=$1
775     type=$2
776     shift 2
777     disable_safe "$type"
778     incs=""
779     for hdr in $headers; do
780         incs="$incs
781 #include <$hdr>"
782     done
783     check_cc "$@" <<EOF && enable_safe "$type"
784 $incs
785 $type v;
786 EOF
787 }
788
789 check_struct(){
790     log check_type "$@"
791     headers=$1
792     struct=$2
793     member=$3
794     shift 3
795     disable_safe "${struct}_${member}"
796     incs=""
797     for hdr in $headers; do
798         incs="$incs
799 #include <$hdr>"
800     done
801     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
802 $incs
803 const void *p = &(($struct *)0)->$member;
804 EOF
805 }
806
807 require(){
808     name="$1"
809     header="$2"
810     func="$3"
811     shift 3
812     check_lib $header $func "$@" || die "ERROR: $name not found"
813 }
814
815 require2(){
816     name="$1"
817     headers="$2"
818     func="$3"
819     shift 3
820     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
821 }
822
823 check_host_cc(){
824     log check_host_cc "$@"
825     cat > $TMPC
826     log_file $TMPC
827     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
828 }
829
830 check_host_cflags(){
831     log check_host_cflags "$@"
832     check_host_cc "$@" <<EOF && append host_cflags "$@"
833 int x;
834 EOF
835 }
836
837 apply(){
838     file=$1
839     shift
840     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
841 }
842
843 cp_if_changed(){
844     cmp -s "$1" "$2" &&
845         echo "$2 is unchanged" ||
846         cp -f "$1" "$2"
847 }
848
849 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
850 # system-dependent things.
851
852 COMPONENT_LIST="
853     bsfs
854     decoders
855     demuxers
856     encoders
857     filters
858     hwaccels
859     indevs
860     muxers
861     outdevs
862     parsers
863     protocols
864 "
865
866 CONFIG_LIST="
867     $COMPONENT_LIST
868     aandct
869     avcodec
870     avcore
871     avdevice
872     avfilter
873     avformat
874     avisynth
875     bzlib
876     dct
877     doc
878     dwt
879     dxva2
880     fastdiv
881     ffmpeg
882     ffplay
883     ffprobe
884     ffserver
885     fft
886     frei0r
887     golomb
888     gpl
889     gray
890     h264dsp
891     h264pred
892     hardcoded_tables
893     huffman
894     libdc1394
895     libdirac
896     libfaac
897     libgsm
898     libmp3lame
899     libnut
900     libopencore_amrnb
901     libopencore_amrwb
902     libopencv
903     libopenjpeg
904     librtmp
905     libschroedinger
906     libspeex
907     libtheora
908     libvorbis
909     libvpx
910     libx264
911     libxavs
912     libxvid
913     lpc
914     lsp
915     mdct
916     memalign_hack
917     mlib
918     mpegaudio_hp
919     network
920     nonfree
921     pic
922     postproc
923     rdft
924     rtpdec
925     runtime_cpudetect
926     shared
927     small
928     sram
929     static
930     swscale
931     swscale_alpha
932     vaapi
933     vdpau
934     version3
935     x11grab
936     zlib
937 "
938
939 THREADS_LIST='
940     pthreads
941     w32threads
942 '
943
944 ARCH_LIST='
945     alpha
946     arm
947     avr32
948     avr32_ap
949     avr32_uc
950     bfin
951     ia64
952     m68k
953     mips
954     mips64
955     parisc
956     ppc
957     ppc64
958     s390
959     sh4
960     sparc
961     sparc64
962     tomi
963     x86
964     x86_32
965     x86_64
966 '
967
968 ARCH_EXT_LIST='
969     altivec
970     amd3dnow
971     amd3dnowext
972     armv5te
973     armv6
974     armv6t2
975     armvfp
976     iwmmxt
977     mmi
978     mmx
979     mmx2
980     neon
981     ppc4xx
982     sse
983     ssse3
984     vis
985 '
986
987 HAVE_LIST_PUB='
988     bigendian
989     fast_unaligned
990 '
991
992 HAVE_LIST="
993     $ARCH_EXT_LIST
994     $HAVE_LIST_PUB
995     $THREADS_LIST
996     aligned_stack
997     alsa_asoundlib_h
998     altivec_h
999     arpa_inet_h
1000     attribute_may_alias
1001     attribute_packed
1002     bswap
1003     closesocket
1004     cmov
1005     conio_h
1006     dcbzl
1007     dev_bktr_ioctl_bt848_h
1008     dev_bktr_ioctl_meteor_h
1009     dev_ic_bt8xx_h
1010     dev_video_meteor_ioctl_meteor_h
1011     dev_video_bktr_ioctl_bt848_h
1012     dlfcn_h
1013     dlopen
1014     dos_paths
1015     ebp_available
1016     ebx_available
1017     exp2
1018     exp2f
1019     fast_64bit
1020     fast_clz
1021     fast_cmov
1022     fcntl
1023     fork
1024     getaddrinfo
1025     gethrtime
1026     GetProcessMemoryInfo
1027     GetProcessTimes
1028     getrusage
1029     gnu_as
1030     struct_rusage_ru_maxrss
1031     ibm_asm
1032     inet_aton
1033     inline_asm
1034     isatty
1035     ldbrx
1036     libdc1394_1
1037     libdc1394_2
1038     llrint
1039     llrintf
1040     local_aligned_16
1041     local_aligned_8
1042     log2
1043     log2f
1044     loongson
1045     lrint
1046     lrintf
1047     lzo1x_999_compress
1048     machine_ioctl_bt848_h
1049     machine_ioctl_meteor_h
1050     malloc_h
1051     MapViewOfFile
1052     memalign
1053     mkstemp
1054     mmap
1055     pld
1056     posix_memalign
1057     round
1058     roundf
1059     sdl
1060     sdl_video_size
1061     setmode
1062     socklen_t
1063     soundcard_h
1064     poll_h
1065     setrlimit
1066     strerror_r
1067     strtok_r
1068     struct_addrinfo
1069     struct_ipv6_mreq
1070     struct_sockaddr_in6
1071     struct_sockaddr_sa_len
1072     struct_sockaddr_storage
1073     symver
1074     symver_gnu_asm
1075     symver_asm_label
1076     sys_mman_h
1077     sys_resource_h
1078     sys_select_h
1079     sys_soundcard_h
1080     sys_videoio_h
1081     ten_operands
1082     termios_h
1083     threads
1084     truncf
1085     vfp_args
1086     VirtualAlloc
1087     winsock2_h
1088     xform_asm
1089     xmm_clobbers
1090     yasm
1091 "
1092
1093 # options emitted with CONFIG_ prefix but not available on command line
1094 CONFIG_EXTRA="
1095     avutil
1096     gplv3
1097     lgplv3
1098 "
1099
1100 CMDLINE_SELECT="
1101     $ARCH_EXT_LIST
1102     $CONFIG_LIST
1103     $THREADS_LIST
1104     asm
1105     cross_compile
1106     debug
1107     extra_warnings
1108     logging
1109     optimizations
1110     stripping
1111     symver
1112     yasm
1113 "
1114
1115 PATHS_LIST='
1116     bindir
1117     datadir
1118     incdir
1119     libdir
1120     mandir
1121     prefix
1122     shlibdir
1123 '
1124
1125 CMDLINE_SET="
1126     $PATHS_LIST
1127     ar
1128     arch
1129     as
1130     build_suffix
1131     cc
1132     cpu
1133     cross_prefix
1134     dep_cc
1135     extra_version
1136     host_cc
1137     host_cflags
1138     host_ldflags
1139     host_libs
1140     host_os
1141     ld
1142     logfile
1143     malloc_prefix
1144     nm
1145     samples
1146     source_path
1147     strip
1148     sysinclude
1149     sysroot
1150     target_exec
1151     target_os
1152     target_path
1153 "
1154
1155 CMDLINE_APPEND="
1156     extra_cflags
1157 "
1158
1159 # code dependency declarations
1160
1161 # architecture extensions
1162
1163 armv5te_deps="arm"
1164 armv6_deps="arm"
1165 armv6t2_deps="arm"
1166 armvfp_deps="arm"
1167 iwmmxt_deps="arm"
1168 neon_deps="arm"
1169
1170 mmi_deps="mips"
1171
1172 altivec_deps="ppc"
1173 ppc4xx_deps="ppc"
1174
1175 vis_deps="sparc"
1176
1177 x86_64_suggest="cmov fast_cmov"
1178 amd3dnow_deps="mmx"
1179 amd3dnowext_deps="amd3dnow"
1180 mmx_deps="x86"
1181 mmx2_deps="mmx"
1182 sse_deps="mmx"
1183 ssse3_deps="sse"
1184
1185 aligned_stack_if_any="ppc x86"
1186 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1187 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1188 fast_unaligned_if_any="armv6 ppc x86"
1189
1190 need_memalign="altivec neon sse"
1191 inline_asm_deps="!tms470"
1192
1193 symver_if_any="symver_asm_label symver_gnu_asm"
1194
1195 # subsystems
1196 dct_select="rdft"
1197 mdct_select="fft"
1198 rdft_select="fft"
1199
1200 # decoders / encoders / hardware accelerators
1201 aac_decoder_select="mdct rdft"
1202 aac_encoder_select="mdct"
1203 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1204 ac3_decoder_select="mdct ac3_parser"
1205 ac3_encoder_select="mdct"
1206 alac_encoder_select="lpc"
1207 amrnb_decoder_select="lsp"
1208 amrwb_decoder_select="lsp"
1209 atrac1_decoder_select="mdct"
1210 atrac3_decoder_select="mdct"
1211 binkaudio_dct_decoder_select="mdct rdft dct"
1212 binkaudio_rdft_decoder_select="mdct rdft"
1213 cavs_decoder_select="golomb"
1214 cook_decoder_select="mdct"
1215 cscd_decoder_suggest="zlib"
1216 dca_decoder_select="mdct"
1217 dnxhd_encoder_select="aandct"
1218 dxa_decoder_select="zlib"
1219 eac3_decoder_select="ac3_decoder"
1220 eamad_decoder_select="aandct"
1221 eatgq_decoder_select="aandct"
1222 eatqi_decoder_select="aandct"
1223 ffv1_decoder_select="golomb"
1224 flac_decoder_select="golomb"
1225 flac_encoder_select="golomb lpc"
1226 flashsv_decoder_select="zlib"
1227 flashsv_encoder_select="zlib"
1228 flv_decoder_select="h263_decoder"
1229 flv_encoder_select="h263_encoder"
1230 fraps_decoder_select="huffman"
1231 h261_encoder_select="aandct"
1232 h263_decoder_select="h263_parser"
1233 h263_encoder_select="aandct"
1234 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1235 h263i_decoder_select="h263_decoder"
1236 h263p_encoder_select="h263_encoder"
1237 h264_decoder_select="golomb h264dsp h264pred"
1238 h264_dxva2_hwaccel_deps="dxva2api_h"
1239 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1240 h264_vaapi_hwaccel_select="vaapi"
1241 h264_vdpau_decoder_select="vdpau h264_decoder"
1242 imc_decoder_select="fft mdct"
1243 jpegls_decoder_select="golomb"
1244 jpegls_encoder_select="golomb"
1245 ljpeg_encoder_select="aandct"
1246 loco_decoder_select="golomb"
1247 mjpeg_encoder_select="aandct"
1248 mlp_decoder_select="mlp_parser"
1249 mp1float_decoder_select="dct"
1250 mp2float_decoder_select="dct"
1251 mp3adufloat_decoder_select="dct"
1252 mp3float_decoder_select="dct"
1253 mp3on4float_decoder_select="dct"
1254 mpeg1video_encoder_select="aandct"
1255 mpeg2video_encoder_select="aandct"
1256 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1257 mpeg4_encoder_select="h263_encoder"
1258 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1259 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1260 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1261 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1262 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1263 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1264 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1265 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1266 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1267 msmpeg4v1_decoder_select="h263_decoder"
1268 msmpeg4v1_encoder_select="h263_encoder"
1269 msmpeg4v2_decoder_select="h263_decoder"
1270 msmpeg4v2_encoder_select="h263_encoder"
1271 msmpeg4v3_decoder_select="h263_decoder"
1272 msmpeg4v3_encoder_select="h263_encoder"
1273 nellymoser_decoder_select="mdct"
1274 nellymoser_encoder_select="mdct"
1275 png_decoder_select="zlib"
1276 png_encoder_select="zlib"
1277 qcelp_decoder_select="lsp"
1278 qdm2_decoder_select="mdct rdft"
1279 ra_144_encoder_select="lpc"
1280 rv10_decoder_select="h263_decoder"
1281 rv10_encoder_select="h263_encoder"
1282 rv20_decoder_select="h263_decoder"
1283 rv20_encoder_select="h263_encoder"
1284 rv30_decoder_select="golomb h264pred"
1285 rv40_decoder_select="golomb h264pred"
1286 shorten_decoder_select="golomb"
1287 sipr_decoder_select="lsp"
1288 snow_decoder_select="dwt"
1289 snow_encoder_select="aandct dwt"
1290 sonic_decoder_select="golomb"
1291 sonic_encoder_select="golomb"
1292 sonic_ls_encoder_select="golomb"
1293 svq1_encoder_select="aandct"
1294 svq3_decoder_select="golomb h264dsp h264pred"
1295 svq3_decoder_suggest="zlib"
1296 theora_decoder_select="vp3_decoder"
1297 tiff_decoder_suggest="zlib"
1298 tiff_encoder_suggest="zlib"
1299 truehd_decoder_select="mlp_decoder"
1300 tscc_decoder_select="zlib"
1301 twinvq_decoder_select="mdct lsp"
1302 vc1_decoder_select="h263_decoder"
1303 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1304 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1305 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1306 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1307 vorbis_decoder_select="mdct"
1308 vorbis_encoder_select="mdct"
1309 vp6_decoder_select="huffman"
1310 vp6a_decoder_select="vp6_decoder"
1311 vp6f_decoder_select="vp6_decoder"
1312 vp8_decoder_select="h264pred"
1313 wmapro_decoder_select="mdct"
1314 wmav1_decoder_select="mdct"
1315 wmav1_encoder_select="mdct"
1316 wmav2_decoder_select="mdct"
1317 wmav2_encoder_select="mdct"
1318 wmavoice_decoder_select="lsp rdft dct mdct"
1319 wmv1_decoder_select="h263_decoder"
1320 wmv1_encoder_select="h263_encoder"
1321 wmv2_decoder_select="h263_decoder"
1322 wmv2_encoder_select="h263_encoder"
1323 wmv3_decoder_select="vc1_decoder"
1324 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1325 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1326 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1327 zlib_decoder_select="zlib"
1328 zlib_encoder_select="zlib"
1329 zmbv_decoder_select="zlib"
1330 zmbv_encoder_select="zlib"
1331
1332 vaapi_deps="va_va_h"
1333 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1334
1335 # parsers
1336 h264_parser_select="golomb h264dsp h264pred"
1337
1338 # external libraries
1339 libdirac_decoder_deps="libdirac !libschroedinger"
1340 libdirac_encoder_deps="libdirac"
1341 libfaac_encoder_deps="libfaac"
1342 libgsm_decoder_deps="libgsm"
1343 libgsm_encoder_deps="libgsm"
1344 libgsm_ms_decoder_deps="libgsm"
1345 libgsm_ms_encoder_deps="libgsm"
1346 libmp3lame_encoder_deps="libmp3lame"
1347 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1348 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1349 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1350 libopenjpeg_decoder_deps="libopenjpeg"
1351 libschroedinger_decoder_deps="libschroedinger"
1352 libschroedinger_encoder_deps="libschroedinger"
1353 libspeex_decoder_deps="libspeex"
1354 libtheora_encoder_deps="libtheora"
1355 libvorbis_encoder_deps="libvorbis"
1356 libvpx_decoder_deps="libvpx"
1357 libvpx_encoder_deps="libvpx"
1358 libx264_encoder_deps="libx264"
1359 libxavs_encoder_deps="libxavs"
1360 libxvid_encoder_deps="libxvid"
1361
1362 # demuxers / muxers
1363 ac3_demuxer_select="ac3_parser"
1364 asf_stream_muxer_select="asf_muxer"
1365 avisynth_demuxer_deps="avisynth"
1366 dirac_demuxer_select="dirac_parser"
1367 eac3_demuxer_select="ac3_parser"
1368 flac_demuxer_select="flac_parser"
1369 ipod_muxer_select="mov_muxer"
1370 libnut_demuxer_deps="libnut"
1371 libnut_muxer_deps="libnut"
1372 matroska_audio_muxer_select="matroska_muxer"
1373 matroska_demuxer_suggest="zlib bzlib"
1374 mov_demuxer_suggest="zlib"
1375 mp3_demuxer_select="mpegaudio_parser"
1376 mp4_muxer_select="mov_muxer"
1377 mpegtsraw_demuxer_select="mpegts_demuxer"
1378 mxf_d10_muxer_select="mxf_muxer"
1379 ogg_demuxer_select="golomb"
1380 psp_muxer_select="mov_muxer"
1381 rtp_demuxer_select="sdp_demuxer"
1382 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1383 rtsp_demuxer_select="http_protocol rtpdec"
1384 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1385 sap_demuxer_select="sdp_demuxer"
1386 sap_muxer_select="rtp_muxer rtp_protocol"
1387 sdp_demuxer_select="rtpdec"
1388 spdif_muxer_select="aac_parser"
1389 tg2_muxer_select="mov_muxer"
1390 tgp_muxer_select="mov_muxer"
1391 w64_demuxer_deps="wav_demuxer"
1392
1393 # indevs / outdevs
1394 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1395 alsa_outdev_deps="alsa_asoundlib_h"
1396 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1397 dv1394_indev_deps="dv1394 dv_demuxer"
1398 jack_indev_deps="jack_jack_h"
1399 libdc1394_indev_deps="libdc1394"
1400 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1401 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1402 v4l_indev_deps="linux_videodev_h"
1403 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1404 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1405 vfwcap_indev_extralibs="-lavicap32"
1406 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1407 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1408
1409 # protocols
1410 gopher_protocol_deps="network"
1411 http_protocol_deps="network"
1412 http_protocol_select="tcp_protocol"
1413 mmsh_protocol_select="http_protocol"
1414 mmst_protocol_deps="network"
1415 rtmp_protocol_select="tcp_protocol"
1416 rtp_protocol_select="udp_protocol"
1417 tcp_protocol_deps="network"
1418 udp_protocol_deps="network"
1419
1420 # filters
1421 blackframe_filter_deps="gpl"
1422 cropdetect_filter_deps="gpl"
1423 frei0r_filter_deps="frei0r dlopen strtok_r"
1424 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1425 hqdn3d_filter_deps="gpl"
1426 scale_filter_deps="swscale"
1427 ocv_filter_deps="libopencv"
1428 yadif_filter_deps="gpl"
1429
1430 # libraries
1431 avdevice_deps="avcodec avformat"
1432 avformat_deps="avcodec"
1433
1434 # programs
1435 ffmpeg_deps="avcodec avformat swscale"
1436 ffmpeg_select="buffer_filter"
1437 ffplay_deps="avcodec avformat swscale sdl"
1438 ffplay_select="rdft"
1439 ffprobe_deps="avcodec avformat"
1440 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1441 ffserver_extralibs='$ldl'
1442
1443 doc_deps="texi2html"
1444
1445 # tests
1446
1447 test_deps(){
1448     suf1=$1
1449     suf2=$2
1450     shift 2
1451     for v; do
1452         dep=${v%=*}
1453         tests=${v#*=}
1454         for name in ${tests}; do
1455             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1456         done
1457     done
1458 }
1459
1460 set_ne_test_deps(){
1461     eval ${1}_be_test_deps="bigendian"
1462     eval ${1}_le_test_deps="!bigendian"
1463 }
1464
1465 test_deps _encoder _decoder                                             \
1466     adpcm_g726=g726                                                     \
1467     adpcm_ima_qt                                                        \
1468     adpcm_ima_wav                                                       \
1469     adpcm_ms                                                            \
1470     adpcm_swf                                                           \
1471     adpcm_yamaha=adpcm_yam                                              \
1472     alac                                                                \
1473     asv1                                                                \
1474     asv2                                                                \
1475     bmp                                                                 \
1476     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1477     dvvideo="dv dv50"                                                   \
1478     ffv1                                                                \
1479     flac                                                                \
1480     flashsv                                                             \
1481     flv                                                                 \
1482     gif                                                                 \
1483     h261                                                                \
1484     h263="h263 h263p"                                                   \
1485     huffyuv                                                             \
1486     jpegls                                                              \
1487     mjpeg="jpg mjpeg ljpeg"                                             \
1488     mp2                                                                 \
1489     mpeg1video="mpeg mpeg1b"                                            \
1490     mpeg2video="mpeg2 mpeg2thread"                                      \
1491     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1492     msmpeg4v3=msmpeg4                                                   \
1493     msmpeg4v2                                                           \
1494     pbm=pbmpipe                                                         \
1495     pcx                                                                 \
1496     pgm="pgm pgmpipe"                                                   \
1497     png                                                                 \
1498     ppm="ppm ppmpipe"                                                   \
1499     rawvideo="rgb yuv"                                                  \
1500     roq                                                                 \
1501     rv10                                                                \
1502     rv20                                                                \
1503     sgi                                                                 \
1504     snow="snow snowll"                                                  \
1505     svq1                                                                \
1506     targa=tga                                                           \
1507     tiff                                                                \
1508     wmav1                                                               \
1509     wmav2                                                               \
1510     wmv1                                                                \
1511     wmv2                                                                \
1512
1513 test_deps _muxer _demuxer                                               \
1514     aiff                                                                \
1515     pcm_alaw=alaw                                                       \
1516     asf                                                                 \
1517     au                                                                  \
1518     avi                                                                 \
1519     dv=dv_fmt                                                           \
1520     ffm                                                                 \
1521     flv=flv_fmt                                                         \
1522     gxf                                                                 \
1523     matroska=mkv                                                        \
1524     mmf                                                                 \
1525     mov                                                                 \
1526     pcm_mulaw=mulaw                                                     \
1527     mxf                                                                 \
1528     nut                                                                 \
1529     ogg                                                                 \
1530     rawvideo=pixfmt                                                     \
1531     rm                                                                  \
1532     swf                                                                 \
1533     mpegts=ts                                                           \
1534     voc                                                                 \
1535     wav                                                                 \
1536     yuv4mpegpipe=yuv4mpeg                                               \
1537
1538 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1539 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1540
1541 set_ne_test_deps pixdesc
1542 set_ne_test_deps pixfmts_copy
1543 set_ne_test_deps pixfmts_crop
1544 set_ne_test_deps pixfmts_hflip
1545 set_ne_test_deps pixfmts_null
1546 set_ne_test_deps pixfmts_pad
1547 set_ne_test_deps pixfmts_scale
1548 set_ne_test_deps pixfmts_vflip
1549
1550 # default parameters
1551
1552 logfile="config.log"
1553
1554 # installation paths
1555 prefix_default="/usr/local"
1556 bindir_default='${prefix}/bin'
1557 datadir_default='${prefix}/share/ffmpeg'
1558 incdir_default='${prefix}/include'
1559 libdir_default='${prefix}/lib'
1560 mandir_default='${prefix}/share/man'
1561 shlibdir_default="$libdir_default"
1562
1563 # toolchain
1564 ar_default="ar"
1565 cc_default="gcc"
1566 cc_version=\"unknown\"
1567 host_cc_default="gcc"
1568 ln_s="ln -sf"
1569 nm_default="nm"
1570 objformat="elf"
1571 ranlib="ranlib"
1572 strip_default="strip"
1573 yasmexe="yasm"
1574 nogas=":"
1575
1576 nm_opts='-g'
1577
1578 # machine
1579 arch_default=$(uname -m)
1580 cpu="generic"
1581
1582 # OS
1583 target_os_default=$(tolower $(uname -s))
1584 host_os=$target_os_default
1585
1586 # configurable options
1587 enable avcodec
1588 enable avcore
1589 enable avdevice
1590 enable avfilter
1591 enable avformat
1592 enable avutil
1593 enable asm
1594 enable debug
1595 enable doc
1596 enable fastdiv
1597 enable ffmpeg
1598 enable ffplay
1599 enable ffprobe
1600 enable ffserver
1601 enable mpegaudio_hp
1602 enable network
1603 enable optimizations
1604 enable protocols
1605 enable static
1606 enable stripping
1607 enable swscale
1608 enable swscale_alpha
1609
1610 # build settings
1611 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1612 FFSERVERLDFLAGS=-Wl,-E
1613 LIBPREF="lib"
1614 LIBSUF=".a"
1615 FULLNAME='$(NAME)$(BUILDSUF)'
1616 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1617 SLIBPREF="lib"
1618 SLIBSUF=".so"
1619 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1620 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1621 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1622 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1623
1624 CC_O='-o $@'
1625
1626 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1627 host_libs='-lm'
1628
1629 target_path='$(CURDIR)'
1630
1631 # since the object filename is not given with the -MM flag, the compiler
1632 # is only able to print the basename, and we must add the path ourselves
1633 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1634 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1635
1636 # find source path
1637 source_path="$(dirname "$0")"
1638 enable source_path_used
1639 if test -f configure; then
1640     source_path="$(pwd)"
1641     disable source_path_used
1642 else
1643     source_path="$(cd "$source_path"; pwd)"
1644     echo "$source_path" | grep -q '[[:blank:]]' &&
1645         die "Out of tree builds are impossible with whitespace in source path."
1646     test -e "$source_path/config.h" &&
1647         die "Out of tree builds are impossible with config.h in source dir."
1648 fi
1649
1650 for v in "$@"; do
1651     r=${v#*=}
1652     l=${v%"$r"}
1653     r=$(sh_quote "$r")
1654     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1655 done
1656
1657 find_things(){
1658     thing=$1
1659     pattern=$2
1660     file=$source_path/$3
1661     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1662 }
1663
1664 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1665 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1666 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1667 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1668 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1669 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1670 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1671 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1672 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1673 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1674 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1675
1676 find_tests(){
1677     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1678 }
1679
1680 ACODEC_TESTS=$(find_tests acodec)
1681 VCODEC_TESTS=$(find_tests vsynth1)
1682 LAVF_TESTS=$(find_tests lavf)
1683 LAVFI_TESTS=$(find_tests lavfi)
1684 SEEK_TESTS=$(find_tests seek seek_)
1685
1686 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1687
1688 for n in $COMPONENT_LIST; do
1689     v=$(toupper ${n%s})_LIST
1690     eval enable \$$v
1691     eval ${n}_if_any="\$$v"
1692 done
1693
1694 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1695
1696 die_unknown(){
1697     echo "Unknown option \"$1\"."
1698     echo "See $0 --help for available options."
1699     exit 1
1700 }
1701
1702 show_list() {
1703     suffix=_$1
1704     shift
1705     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1706     exit 0
1707 }
1708
1709 for opt do
1710     optval="${opt#*=}"
1711     case "$opt" in
1712     --extra-ldflags=*) add_ldflags $optval
1713     ;;
1714     --extra-libs=*) add_extralibs $optval
1715     ;;
1716     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1717     ;;
1718     --enable-debug=*) debuglevel="$optval"
1719     ;;
1720     --disable-everything)
1721     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1722     ;;
1723     --enable-*=*|--disable-*=*)
1724     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1725     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1726     eval list=\$$(toupper $thing)_LIST
1727     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1728     $action $(filter "$name" $list)
1729     ;;
1730     --enable-?*|--disable-?*)
1731     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1732     if is_in $option $COMPONENT_LIST; then
1733         test $action = disable && action=unset
1734         eval $action \$$(toupper ${option%s})_LIST
1735     elif is_in $option $CMDLINE_SELECT; then
1736         $action $option
1737     else
1738         die_unknown $opt
1739     fi
1740     ;;
1741     --list-*)
1742         NAME="${opt#--list-}"
1743         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1744         NAME=${NAME%s}
1745         eval show_list $NAME \$$(toupper $NAME)_LIST
1746     ;;
1747     --help|-h) show_help
1748     ;;
1749     *)
1750     optname="${opt%%=*}"
1751     optname="${optname#--}"
1752     optname=$(echo "$optname" | sed 's/-/_/g')
1753     if is_in $optname $CMDLINE_SET; then
1754         eval $optname='$optval'
1755     elif is_in $optname $CMDLINE_APPEND; then
1756         append $optname "$optval"
1757     else
1758          die_unknown $opt
1759     fi
1760     ;;
1761     esac
1762 done
1763
1764 disabled logging && logfile=/dev/null
1765
1766 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1767 set >> $logfile
1768
1769 test -n "$cross_prefix" && enable cross_compile
1770
1771 if enabled cross_compile; then
1772     test -n "$arch" && test -n "$target_os" ||
1773         die "Must specify target arch and OS when cross-compiling"
1774 fi
1775
1776 set_default arch target_os
1777
1778 ar_default="${cross_prefix}${ar_default}"
1779 cc_default="${cross_prefix}${cc_default}"
1780 nm_default="${cross_prefix}${nm_default}"
1781 ranlib="${cross_prefix}${ranlib}"
1782 strip_default="${cross_prefix}${strip_default}"
1783
1784 sysinclude_default="${sysroot}/usr/include"
1785
1786 set_default cc nm strip sysinclude
1787 enabled cross_compile || host_cc_default=$cc
1788 set_default host_cc
1789
1790 exesuf() {
1791     case $1 in
1792         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1793     esac
1794 }
1795
1796 EXESUF=$(exesuf $target_os)
1797 HOSTEXESUF=$(exesuf $host_os)
1798
1799 # set temporary file name
1800 : ${TMPDIR:=$TEMPDIR}
1801 : ${TMPDIR:=$TMP}
1802 : ${TMPDIR:=/tmp}
1803
1804 if ! check_cmd mktemp -u XXXXXX; then
1805     # simple replacement for missing mktemp
1806     # NOT SAFE FOR GENERAL USE
1807     mktemp(){
1808         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1809     }
1810 fi
1811
1812 tmpfile(){
1813     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1814         (set -C; exec > $tmp) 2>/dev/null ||
1815         die "Unable to create temporary file in $TMPDIR."
1816     append TMPFILES $tmp
1817     eval $1=$tmp
1818 }
1819
1820 trap 'rm -f -- $TMPFILES' EXIT
1821
1822 tmpfile TMPC  .c
1823 tmpfile TMPE  $EXESUF
1824 tmpfile TMPH  .h
1825 tmpfile TMPO  .o
1826 tmpfile TMPS  .S
1827 tmpfile TMPV  .ver
1828 tmpfile TMPSH .sh
1829 tmpfile TMPASM .asm
1830
1831 unset -f mktemp
1832
1833 chmod +x $TMPE
1834
1835 # make sure we can execute files in $TMPDIR
1836 cat > $TMPSH 2>> $logfile <<EOF
1837 #! /bin/sh
1838 EOF
1839 chmod +x $TMPSH >> $logfile 2>&1
1840 if ! $TMPSH >> $logfile 2>&1; then
1841     cat <<EOF
1842 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1843 variable to another directory and make sure that it is not mounted noexec.
1844 EOF
1845     die "Sanity test failed."
1846 fi
1847
1848 filter_cflags=echo
1849 filter_cppflags=echo
1850 filter_asflags=echo
1851
1852 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1853     cc_type=llvm_gcc
1854     cc_version=__VERSION__
1855     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1856     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1857     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1858     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1859     speed_cflags='-O3'
1860     size_cflags='-Os'
1861 elif $cc -v 2>&1 | grep -qi ^gcc; then
1862     cc_type=gcc
1863     cc_version=__VERSION__
1864     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1865     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1866     if ! $cc -dumpversion | grep -q '^2\.'; then
1867         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1868         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1869     fi
1870     speed_cflags='-O3'
1871     size_cflags='-Os'
1872 elif $cc --version 2>/dev/null | grep -q Intel; then
1873     cc_type=icc
1874     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1875     cc_ident=$($cc --version | head -n1)
1876     icc_version=$($cc -dumpversion)
1877     CC_DEPFLAGS='-MMD'
1878     AS_DEPFLAGS='-MMD'
1879     speed_cflags='-O3'
1880     size_cflags='-Os'
1881     noopt_cflags='-O1'
1882 elif $cc -v 2>&1 | grep -q xlc; then
1883     cc_type=xlc
1884     cc_version="AV_STRINGIFY(__IBMC__)"
1885     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1886     speed_cflags='-O5'
1887     size_cflags='-O5 -qcompact'
1888 elif $cc -V 2>/dev/null | grep -q Compaq; then
1889     cc_type=ccc
1890     cc_version="AV_STRINGIFY(__DECC_VER)"
1891     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1892     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1893     debuglevel=3
1894     add_ldflags -Wl,-z,now # calls to libots crash without this
1895     speed_cflags='-fast'
1896     size_cflags='-O1'
1897 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1898     test -d "$sysroot" || die "No valid sysroot specified."
1899     cc_type=armcc
1900     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1901     cc_ident=$($cc --vsn | head -n1)
1902     armcc_conf="$PWD/armcc.conf"
1903     $cc --arm_linux_configure                 \
1904         --arm_linux_config_file="$armcc_conf" \
1905         --configure_sysroot="$sysroot"        \
1906         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1907         die "Error creating armcc configuration file."
1908     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1909     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1910     as_default="${cross_prefix}gcc"
1911     CC_DEPFLAGS='-MMD'
1912     AS_DEPFLAGS='-MMD'
1913     speed_cflags='-O3'
1914     size_cflags='-Os'
1915     filter_asflags="filter_out -W${armcc_opt}*"
1916 elif $cc -version 2>/dev/null | grep -q TMS470; then
1917     cc_type=tms470
1918     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1919     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1920     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1921     CC_O='-fr=$(@D)'
1922     as_default="${cross_prefix}gcc"
1923     ld_default="${cross_prefix}gcc"
1924     TMPO=$(basename $TMPC .c).o
1925     append TMPFILES $TMPO
1926     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1927     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1928     AS_DEPFLAGS='-MMD'
1929     speed_cflags='-O3 -mf=5'
1930     size_cflags='-O3 -mf=2'
1931     filter_cflags=tms470_flags
1932     tms470_flags(){
1933         for flag; do
1934             case $flag in
1935                 -march=*|-mcpu=*)
1936                     case "${flag#*=}" in
1937                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1938                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1939                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1940                         armv6*|arm11*)          echo -mv=6   ;;
1941                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1942                                                 echo -mv=5e  ;;
1943                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1944                     esac
1945                     ;;
1946                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1947                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1948                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1949                 -msoft-float)   echo --float_support=vfplib       ;;
1950                 -O[0-3]|-mf=*)  echo $flag                        ;;
1951                 -g)             echo -g -mn                       ;;
1952                 -pds=*)         echo $flag                        ;;
1953             esac
1954         done
1955     }
1956 elif $cc -v 2>&1 | grep -q clang; then
1957     cc_type=clang
1958     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1959         cc_version=__clang_version__ || cc_version=__VERSION__
1960     cc_ident=$($cc --version | head -n1)
1961     CC_DEPFLAGS='-MMD'
1962     AS_DEPFLAGS='-MMD'
1963     speed_cflags='-O3'
1964     size_cflags='-Os'
1965 elif $cc -V 2>&1 | grep -q Sun; then
1966     cc_type=suncc
1967     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1968     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1969     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1970     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1971     speed_cflags='-O5'
1972     size_cflags='-O5 -xspace'
1973     filter_cflags=suncc_flags
1974     suncc_flags(){
1975         for flag; do
1976             case $flag in
1977                 -march=*|-mcpu=*)
1978                     case "${flag#*=}" in
1979                         native)                   echo -xtarget=native       ;;
1980                         v9|niagara)               echo -xarch=sparc          ;;
1981                         ultrasparc)               echo -xarch=sparcvis       ;;
1982                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1983                         i586|pentium)             echo -xchip=pentium        ;;
1984                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1985                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1986                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1987                         pentium4*)          echo -xtarget=pentium4           ;;
1988                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1989                         *-sse3)             echo -xarch=sse3                 ;;
1990                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1991                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1992                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1993                         k8|opteron|athlon64|athlon-fx)
1994                                                   echo -xarch=sse2a          ;;
1995                         athlon*)                  echo -xarch=pentium_proa   ;;
1996                     esac
1997                     ;;
1998                 -std=c99)             echo -xc99              ;;
1999                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2000                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2001                 -W*,*)                echo $flag              ;;
2002                 -f*-*|-W*)                                    ;;
2003                 *)                    echo $flag              ;;
2004             esac
2005         done
2006     }
2007 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2008     cc_type=pathscale
2009     cc_version=__PATHSCALE__
2010     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2011     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2012     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2013     speed_cflags='-O2'
2014     size_cflags='-Os'
2015 elif $cc -v 2>&1 | grep -q Open64; then
2016     cc_type=open64
2017     cc_version=__OPEN64__
2018     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2019     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2020     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2021     speed_cflags='-O2'
2022     size_cflags='-Os'
2023 fi
2024
2025 test -n "$cc_type" && enable $cc_type ||
2026     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2027
2028 : ${as_default:=$cc}
2029 : ${dep_cc_default:=$cc}
2030 : ${ld_default:=$cc}
2031 set_default ar as dep_cc ld
2032
2033 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2034 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2035
2036 add_cflags $extra_cflags
2037 add_asflags $extra_cflags
2038
2039 if test -n "$sysroot"; then
2040     case "$cc_type" in
2041         gcc|llvm_gcc)
2042             add_cppflags --sysroot="$sysroot"
2043             add_ldflags --sysroot="$sysroot"
2044         ;;
2045         tms470)
2046             add_cppflags -I"$sysinclude"
2047             add_ldflags  --sysroot="$sysroot"
2048         ;;
2049         clang)
2050             add_cppflags -isysroot "$sysroot"
2051             add_ldflags -isysroot "$sysroot"
2052         ;;
2053     esac
2054 fi
2055
2056 if test "$cpu" = host; then
2057     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2058
2059     case "$cc_type" in
2060         gcc|llvm_gcc)
2061             check_native(){
2062                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2063                 sed -n "/$1=/{
2064                             s/.*$1=\\([^ ]*\\).*/\\1/
2065                             p
2066                             q
2067                         }" $TMPE
2068             }
2069             cpu=$(check_native -march || check_native -mcpu)
2070         ;;
2071     esac
2072
2073     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2074 fi
2075
2076 # Deal with common $arch aliases
2077 case "$arch" in
2078     arm*)
2079         arch="arm"
2080     ;;
2081     mips|mipsel|IP*)
2082         arch="mips"
2083     ;;
2084     mips64*)
2085         arch="mips"
2086         subarch="mips64"
2087     ;;
2088     parisc|hppa)
2089         arch="parisc"
2090     ;;
2091     parisc64|hppa64)
2092         arch="parisc"
2093         subarch="parisc64"
2094     ;;
2095     "Power Macintosh"|ppc|powerpc)
2096         arch="ppc"
2097     ;;
2098     ppc64|powerpc64)
2099         arch="ppc"
2100         subarch="ppc64"
2101     ;;
2102     s390|s390x)
2103         arch="s390"
2104     ;;
2105     sh4|sh)
2106         arch="sh4"
2107     ;;
2108     sun4u|sparc64)
2109         arch="sparc"
2110         subarch="sparc64"
2111     ;;
2112     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2113         arch="x86"
2114     ;;
2115 esac
2116
2117 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2118 enable $arch
2119
2120 # Add processor-specific flags
2121 if test "$cpu" = generic; then
2122     : do nothing
2123 elif enabled ppc; then
2124
2125     case $(tolower $cpu) in
2126         601|ppc601|powerpc601)
2127             cpuflags="-mcpu=601"
2128             disable altivec
2129         ;;
2130         603*|ppc603*|powerpc603*)
2131             cpuflags="-mcpu=603"
2132             disable altivec
2133         ;;
2134         604*|ppc604*|powerpc604*)
2135             cpuflags="-mcpu=604"
2136             disable altivec
2137         ;;
2138         g3|75*|ppc75*|powerpc75*)
2139             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2140             disable altivec
2141         ;;
2142         g4|745*|ppc745*|powerpc745*)
2143             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2144         ;;
2145         74*|ppc74*|powerpc74*)
2146             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2147         ;;
2148         g5|970|ppc970|powerpc970|power4*)
2149             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2150         ;;
2151         cell)
2152             cpuflags="-mcpu=cell"
2153             enable ldbrx
2154         ;;
2155         e500v2)
2156             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2157             disable altivec
2158         ;;
2159         e500)
2160             cpuflags="-mcpu=8540 -mhard-float"
2161             disable altivec
2162         ;;
2163     esac
2164
2165 elif enabled x86; then
2166
2167     case $cpu in
2168         i[345]86|pentium)
2169             cpuflags="-march=$cpu"
2170             disable mmx
2171         ;;
2172         # targets that do NOT support conditional mov (cmov)
2173         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2174             cpuflags="-march=$cpu"
2175             disable cmov
2176         ;;
2177         # targets that do support conditional mov (cmov)
2178         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2179             cpuflags="-march=$cpu"
2180             enable cmov
2181             enable fast_cmov
2182         ;;
2183         # targets that do support conditional mov but on which it's slow
2184         pentium4|pentium4m|prescott|nocona)
2185             cpuflags="-march=$cpu"
2186             enable cmov
2187             disable fast_cmov
2188         ;;
2189     esac
2190
2191 elif enabled sparc; then
2192
2193     case $cpu in
2194         niagara)
2195             cpuflags="-mcpu=$cpu"
2196             disable vis
2197         ;;
2198         sparc64)
2199             cpuflags="-mcpu=v9"
2200         ;;
2201     esac
2202
2203 elif enabled arm; then
2204
2205     case $cpu in
2206         armv*)
2207             cpuflags="-march=$cpu"
2208             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2209         ;;
2210         *)
2211             cpuflags="-mcpu=$cpu"
2212             case $cpu in
2213                 cortex-a*)                               subarch=armv7a  ;;
2214                 cortex-r*)                               subarch=armv7r  ;;
2215                 cortex-m*)                               subarch=armv7m  ;;
2216                 arm11*)                                  subarch=armv6   ;;
2217                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2218                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2219             esac
2220         ;;
2221     esac
2222
2223 elif enabled alpha; then
2224
2225     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2226
2227 elif enabled bfin; then
2228
2229     cpuflags="-mcpu=$cpu"
2230
2231 elif enabled mips; then
2232
2233     cpuflags="-march=$cpu"
2234
2235 elif enabled avr32; then
2236
2237     case $cpu in
2238         ap7[02]0[0-2])
2239             subarch="avr32_ap"
2240             cpuflags="-mpart=$cpu"
2241         ;;
2242         ap)
2243             subarch="avr32_ap"
2244             cpuflags="-march=$cpu"
2245         ;;
2246         uc3[ab]*)
2247             subarch="avr32_uc"
2248             cpuflags="-mcpu=$cpu"
2249         ;;
2250         uc)
2251             subarch="avr32_uc"
2252             cpuflags="-march=$cpu"
2253         ;;
2254     esac
2255
2256 fi
2257
2258 add_cflags $cpuflags
2259 add_asflags $cpuflags
2260
2261 # compiler sanity check
2262 check_exec <<EOF
2263 int main(void){ return 0; }
2264 EOF
2265 if test "$?" != 0; then
2266     echo "$cc is unable to create an executable file."
2267     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2268         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2269         echo "Only do this if you know what cross compiling means."
2270     fi
2271     die "C compiler test failed."
2272 fi
2273
2274 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2275 check_cflags -std=c99
2276 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2277 #include <stdlib.h>
2278 EOF
2279 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2280 #include <stdlib.h>
2281 EOF
2282
2283 check_host_cflags -std=c99
2284
2285 case "$arch" in
2286     alpha|ia64|mips|parisc|sparc)
2287         spic=$shared
2288     ;;
2289     x86)
2290         subarch="x86_32"
2291         check_cc <<EOF && subarch="x86_64"
2292         int test[(int)sizeof(char*) - 7];
2293 EOF
2294         if test "$subarch" = "x86_64"; then
2295             spic=$shared
2296         fi
2297     ;;
2298 esac
2299
2300 enable $subarch
2301 enabled spic && enable pic
2302
2303 # OS specific
2304 case $target_os in
2305     haiku)
2306         prefix_default="/boot/common"
2307         network_extralibs="-lnetwork"
2308         ;;
2309     sunos)
2310         FFSERVERLDFLAGS=""
2311         SHFLAGS='-shared -Wl,-h,$$(@F)'
2312         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2313         network_extralibs="-lsocket -lnsl"
2314         add_cppflags -D__EXTENSIONS__
2315         nm_opts='-P -g'
2316         ;;
2317     netbsd)
2318         disable symver
2319         oss_indev_extralibs="-lossaudio"
2320         oss_outdev_extralibs="-lossaudio"
2321         add_cppflags -D_XOPEN_SOURCE=600
2322         ;;
2323     openbsd)
2324         enable malloc_aligned
2325         # On OpenBSD 4.5. the compiler does not use PIC unless
2326         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2327         # however the generated executable will not do anything
2328         # (simply quits with exit-code 1, no crash, no output).
2329         # Thus explicitly enable PIC here.
2330         enable pic
2331         disable symver
2332         SHFLAGS='-shared'
2333         oss_indev_extralibs="-lossaudio"
2334         oss_outdev_extralibs="-lossaudio"
2335         ;;
2336     dragonfly)
2337         enable malloc_aligned
2338         disable symver
2339         ;;
2340     freebsd)
2341         enable malloc_aligned
2342         ;;
2343     bsd/os)
2344         add_extralibs -lpoll -lgnugetopt
2345         strip="strip -d"
2346         ;;
2347     darwin)
2348         enable malloc_aligned
2349         gas="gas-preprocessor.pl $cc"
2350         enabled ppc && add_asflags -force_cpusubtype_ALL
2351         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2352         strip="${strip} -x"
2353         add_ldflags -Wl,-dynamic,-search_paths_first
2354         SLIBSUF=".dylib"
2355         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2356         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2357         FFSERVERLDFLAGS=-Wl,-bind_at_load
2358         objformat="macho"
2359         enabled x86_64 && objformat="macho64"
2360         enabled_any pic shared ||
2361             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2362         ;;
2363     mingw32*)
2364         if test $target_os = "mingw32ce"; then
2365             disable network
2366         else
2367             target_os=mingw32
2368         fi
2369         LIBTARGET=i386
2370         if enabled x86_64; then
2371             enable malloc_aligned
2372             LIBTARGET=x64
2373         elif enabled arm; then
2374             LIBTARGET=arm
2375         fi
2376         shlibdir_default="$bindir_default"
2377         disable ffserver
2378         SLIBPREF=""
2379         SLIBSUF=".dll"
2380         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2381         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2382         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2383         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2384             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2385             install -d "$(LIBDIR)"; \
2386             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2387         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2388         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'
2389         objformat="win32"
2390         enable dos_paths
2391         check_cflags -fno-common
2392         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2393                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2394                 die "ERROR: MinGW runtime version must be >= 3.15."
2395         ;;
2396     cygwin*)
2397         target_os=cygwin
2398         shlibdir_default="$bindir_default"
2399         SLIBPREF="cyg"
2400         SLIBSUF=".dll"
2401         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2402         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2403         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2404         objformat="win32"
2405         enable dos_paths
2406         check_cflags -fno-common
2407         ;;
2408     *-dos|freedos|opendos)
2409         disable ffplay ffserver
2410         disable $INDEV_LIST $OUTDEV_LIST
2411         network_extralibs="-lsocket"
2412         objformat="coff"
2413         enable dos_paths
2414         ;;
2415     linux)
2416         enable dv1394
2417         ;;
2418     irix*)
2419         target_os=irix
2420         ranlib="echo ignoring ranlib"
2421         ;;
2422     os/2*)
2423         strip="lxlite"
2424         ln_s="cp -f"
2425         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2426         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2427         FFSERVERLDFLAGS=""
2428         LIBSUF="_s.a"
2429         SLIBPREF=""
2430         SLIBSUF=".dll"
2431         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2432         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2433         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2434           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2435           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2436           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2437           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2438           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2439         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2440           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2441         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2442         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2443         enable dos_paths
2444         ;;
2445     gnu/kfreebsd)
2446         ;;
2447     gnu)
2448         ;;
2449     qnx)
2450         add_cppflags -D_QNX_SOURCE
2451         network_extralibs="-lsocket"
2452         ;;
2453     none)
2454         ;;
2455     *)
2456         die "Unknown OS '$target_os'."
2457         ;;
2458 esac
2459
2460 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2461
2462 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2463
2464 set_default $PATHS_LIST
2465
2466 # we need to build at least one lib type
2467 if ! enabled_any static shared; then
2468     cat <<EOF
2469 At least one library type must be built.
2470 Specify --enable-static to build the static libraries or --enable-shared to
2471 build the shared libraries as well. To only build the shared libraries specify
2472 --disable-static in addition to --enable-shared.
2473 EOF
2474     exit 1;
2475 fi
2476
2477 disabled static && LIBNAME=""
2478
2479 die_license_disabled() {
2480     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2481 }
2482
2483 die_license_disabled gpl libx264
2484 die_license_disabled gpl libxavs
2485 die_license_disabled gpl libxvid
2486 die_license_disabled gpl postproc
2487 die_license_disabled gpl x11grab
2488
2489 die_license_disabled nonfree libfaac
2490
2491 die_license_disabled version3 libopencore_amrnb
2492 die_license_disabled version3 libopencore_amrwb
2493
2494 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2495
2496 check_deps $ARCH_EXT_LIST
2497
2498 disabled optimizations || check_cflags -fomit-frame-pointer
2499
2500 enable_pic() {
2501     enable pic
2502     add_cppflags -DPIC
2503     add_cflags   -fPIC
2504     add_asflags  -fPIC
2505 }
2506
2507 enabled pic && enable_pic
2508
2509 check_cc <<EOF || die "Symbol mangling check failed."
2510 int ff_extern;
2511 EOF
2512 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2513 extern_prefix=${sym%%ff_extern*}
2514
2515 check_cc <<EOF && enable inline_asm
2516 void foo(void) { __asm__ volatile ("" ::); }
2517 EOF
2518
2519 _restrict=
2520 for restrict_keyword in restrict __restrict__ __restrict; do
2521     check_cc <<EOF && _restrict=$restrict_keyword && break
2522 void foo(char * $restrict_keyword p);
2523 EOF
2524 done
2525
2526 check_cc <<EOF && enable attribute_packed
2527 struct { int x; } __attribute__((packed)) x;
2528 EOF
2529
2530 check_cc <<EOF && enable attribute_may_alias
2531 union { int x; } __attribute__((may_alias)) x;
2532 EOF
2533
2534 check_cc <<EOF || die "endian test failed"
2535 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2536 EOF
2537 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2538
2539 if enabled alpha; then
2540
2541     check_cflags -mieee
2542
2543 elif enabled arm; then
2544
2545     check_cflags -marm
2546     nogas=die
2547
2548     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2549         enable vfp_args
2550     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2551         case "${cross_prefix:-$cc}" in
2552             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2553             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2554 __asm__ (".eabi_attribute 28, 1");
2555 int main(void) { return 0; }
2556 EOF
2557         esac
2558         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2559     fi
2560
2561     # We have to check if pld is a nop and disable it.
2562     check_asm pld '"pld [r0]"'
2563
2564     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2565     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2566     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2567     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2568     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2569     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2570
2571     enabled_all armv6t2 shared !pic && enable_pic
2572
2573 elif enabled mips; then
2574
2575     check_asm loongson '"dmult.g $1, $2, $3"'
2576     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2577
2578 elif enabled ppc; then
2579
2580     enable local_aligned_8 local_aligned_16
2581
2582     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2583     check_asm ibm_asm   '"add 0, 0, 0"'
2584     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2585     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2586
2587     # AltiVec flags: The FSF version of GCC differs from the Apple version
2588     if enabled altivec; then
2589         nogas=warn
2590         check_cflags -maltivec -mabi=altivec &&
2591         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2592         check_cflags -faltivec
2593
2594         # check if our compiler supports Motorola AltiVec C API
2595         check_cc <<EOF || disable altivec
2596 $inc_altivec_h
2597 int main(void) {
2598     vector signed int v1, v2, v3;
2599     v1 = vec_add(v2,v3);
2600     return 0;
2601 }
2602 EOF
2603
2604         # check if our compiler supports braces for vector declarations
2605         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2606 $inc_altivec_h
2607 int main (void) { (vector int) {1}; return 0; }
2608 EOF
2609     fi
2610
2611 elif enabled sparc; then
2612
2613     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2614         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2615
2616 elif enabled x86; then
2617
2618     enable local_aligned_8 local_aligned_16
2619
2620     # check whether EBP is available on x86
2621     # As 'i' is stored on the stack, this program will crash
2622     # if the base pointer is used to access it because the
2623     # base pointer is cleared in the inline assembly code.
2624     check_exec_crash <<EOF && enable ebp_available
2625     volatile int i=0;
2626     __asm__ volatile (
2627         "xorl %%ebp, %%ebp"
2628     ::: "%ebp");
2629     return i;
2630 EOF
2631
2632     # check whether EBX is available on x86
2633     check_asm ebx_available '""::"b"(0)' &&
2634         check_asm ebx_available '"":::"%ebx"'
2635
2636     # check whether xmm clobbers are supported
2637     check_asm xmm_clobbers '"":::"%xmm0"'
2638
2639     # check whether more than 10 operands are supported
2640     check_cc <<EOF && enable ten_operands
2641 int main(void) {
2642     int x=0;
2643     __asm__ volatile(
2644         ""
2645         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2646     );
2647     return 0;
2648 }
2649 EOF
2650
2651     # check whether binutils is new enough to compile SSSE3/MMX2
2652     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2653     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2654
2655     check_asm bswap '"bswap %%eax" ::: "%eax"'
2656
2657     if ! disabled_any asm mmx yasm; then
2658         if check_cmd $yasmexe --version; then
2659             enabled x86_64 && yasm_extra="-m amd64"
2660             yasm_debug="-g dwarf2"
2661         elif check_cmd nasm -v; then
2662             yasmexe=nasm
2663             yasm_debug="-g -F dwarf"
2664             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2665         fi
2666
2667         YASMFLAGS="-f $objformat $yasm_extra"
2668         enabled pic               && append YASMFLAGS "-DPIC"
2669         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2670         case "$objformat" in
2671             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2672         esac
2673
2674         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2675             die "yasm not found, use --disable-yasm for a crippled build"
2676     fi
2677
2678     case "$cpu" in
2679         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2680             disable fast_clz
2681         ;;
2682     esac
2683
2684 fi
2685
2686 if enabled asm; then
2687     as=${gas:=$as}
2688     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2689         $nogas "GNU assembler not found, install gas-preprocessor"
2690 fi
2691
2692 if check_func dlopen; then
2693     ldl=
2694 elif check_func dlopen -ldl; then
2695     ldl=-ldl
2696 fi
2697
2698 if enabled network; then
2699     check_type "sys/types.h sys/socket.h" socklen_t
2700     check_type netdb.h "struct addrinfo"
2701     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2702     check_type netinet/in.h "struct sockaddr_in6"
2703     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2704     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2705     # Prefer arpa/inet.h over winsock2
2706     if check_header arpa/inet.h ; then
2707         check_func closesocket
2708     elif check_header winsock2.h ; then
2709         check_func_headers winsock2.h closesocket -lws2 && \
2710             network_extralibs="-lws2" || \
2711         { check_func_headers winsock2.h closesocket -lws2_32 && \
2712             network_extralibs="-lws2_32"; }
2713         check_type ws2tcpip.h socklen_t
2714         check_type ws2tcpip.h "struct addrinfo"
2715         check_type ws2tcpip.h "struct ipv6_mreq"
2716         check_type ws2tcpip.h "struct sockaddr_in6"
2717         check_type ws2tcpip.h "struct sockaddr_storage"
2718         check_struct winsock2.h "struct sockaddr" sa_len
2719     else
2720         disable network
2721     fi
2722 fi
2723
2724 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2725 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2726
2727 check_func  fcntl
2728 check_func  fork
2729 check_func  getaddrinfo $network_extralibs
2730 check_func  gethrtime
2731 check_func  getrusage
2732 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2733 check_func  inet_aton $network_extralibs
2734 check_func  isatty
2735 check_func  ${malloc_prefix}memalign            && enable memalign
2736 check_func  mkstemp
2737 check_func  mmap
2738 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2739 check_func  setrlimit
2740 check_func  strerror_r
2741 check_func  strtok_r
2742 check_func_headers io.h setmode
2743 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2744 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2745 check_func_headers windows.h GetProcessTimes
2746 check_func_headers windows.h MapViewOfFile
2747 check_func_headers windows.h VirtualAlloc
2748
2749 check_header conio.h
2750 check_header dlfcn.h
2751 check_header dxva2api.h
2752 check_header malloc.h
2753 check_header poll.h
2754 check_header sys/mman.h
2755 check_header sys/resource.h
2756 check_header sys/select.h
2757 check_header termios.h
2758 check_header vdpau/vdpau.h
2759 check_header vdpau/vdpau_x11.h
2760 check_header X11/extensions/XvMClib.h
2761
2762 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2763
2764 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2765      enabled_any $need_memalign ; then
2766     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2767 fi
2768
2769 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2770 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2771
2772 # check for some common methods of building with pthread support
2773 # do this before the optional library checks as some of them require pthreads
2774 if ! disabled pthreads && ! enabled w32threads; then
2775     enable pthreads
2776     if check_func pthread_create; then
2777         :
2778     elif check_func pthread_create -pthread; then
2779         add_cflags -pthread
2780         add_extralibs -pthread
2781     elif check_func pthread_create -pthreads; then
2782         add_cflags -pthreads
2783         add_extralibs -pthreads
2784     elif check_func pthread_create -lpthreadGC2; then
2785         add_extralibs -lpthreadGC2
2786     elif ! check_lib pthread.h pthread_create -lpthread; then
2787         disable pthreads
2788     fi
2789 fi
2790
2791 for thread in $THREADS_LIST; do
2792     if enabled $thread; then
2793         test -n "$thread_type" &&
2794             die "ERROR: Only one thread type must be selected." ||
2795             thread_type="$thread"
2796     fi
2797 done
2798
2799 check_lib math.h sin -lm
2800 disabled vaapi || check_lib va/va.h vaInitialize -lva
2801
2802 check_mathfunc exp2
2803 check_mathfunc exp2f
2804 check_mathfunc llrint
2805 check_mathfunc llrintf
2806 check_mathfunc log2
2807 check_mathfunc log2f
2808 check_mathfunc lrint
2809 check_mathfunc lrintf
2810 check_mathfunc round
2811 check_mathfunc roundf
2812 check_mathfunc truncf
2813
2814 # these are off by default, so fail if requested and not available
2815 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2816 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2817 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2818                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2819                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2820 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2821 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2822 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2823 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2824 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2825 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2826 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2827                         die "ERROR: libopencv not found"; }
2828 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2829 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2830                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2831 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2832                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2833 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2834 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2835 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2836 enabled libvpx     && {
2837     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2838                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2839     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2840                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2841 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2842                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2843                         die "ERROR: libx264 version must be >= 0.99."; }
2844 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2845 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2846 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2847
2848 # libdc1394 check
2849 if enabled libdc1394; then
2850     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2851         enable libdc1394_2; } ||
2852     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2853         enable libdc1394_1; } ||
2854     die "ERROR: No version of libdc1394 found "
2855 fi
2856
2857 SDL_CONFIG="${cross_prefix}sdl-config"
2858 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2859     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2860     sdl_libs=$("${SDL_CONFIG}" --libs)
2861     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2862     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2863     enable sdl &&
2864     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2865 fi
2866
2867 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2868
2869 check_header linux/videodev.h
2870 check_header linux/videodev2.h
2871 check_header sys/videoio.h
2872
2873 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2874 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2875 # w32api 3.12 had it defined wrong
2876 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2877
2878 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2879 { check_header dev/bktr/ioctl_meteor.h &&
2880   check_header dev/bktr/ioctl_bt848.h; } ||
2881 { check_header machine/ioctl_meteor.h &&
2882   check_header machine/ioctl_bt848.h; } ||
2883 { check_header dev/video/meteor/ioctl_meteor.h &&
2884   check_header dev/video/bktr/ioctl_bt848.h; } ||
2885 check_header dev/ic/bt8xx.h
2886
2887 check_header sys/soundcard.h
2888 check_header soundcard.h
2889
2890 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2891
2892 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2893
2894 enabled x11grab                         &&
2895 check_header X11/Xlib.h                 &&
2896 check_header X11/extensions/XShm.h      &&
2897 check_header X11/extensions/Xfixes.h    &&
2898 check_func XOpenDisplay -lX11           &&
2899 check_func XShmCreateImage -lX11 -lXext &&
2900 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2901
2902 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2903 check_cpp_condition \
2904     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2905     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2906       disable vdpau; }
2907 fi
2908
2909 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2910
2911 # add some useful compiler flags if supported
2912 check_cflags -Wdeclaration-after-statement
2913 check_cflags -Wall
2914 check_cflags -Wno-parentheses
2915 check_cflags -Wno-switch
2916 check_cflags -Wdisabled-optimization
2917 check_cflags -Wpointer-arith
2918 check_cflags -Wredundant-decls
2919 check_cflags -Wno-pointer-sign
2920 check_cflags -Wcast-qual
2921 check_cflags -Wwrite-strings
2922 check_cflags -Wtype-limits
2923 check_cflags -Wundef
2924 check_cflags -Wmissing-prototypes
2925 enabled extra_warnings && check_cflags -Winline
2926
2927 # add some linker flags
2928 check_ldflags -Wl,--warn-common
2929 check_ldflags -Wl,--as-needed
2930 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)/libavcore -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2931 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2932
2933 echo "X{};" > $TMPV
2934 if test_ldflags -Wl,--version-script,$TMPV; then
2935     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2936     check_cc <<EOF && enable symver_asm_label
2937 void ff_foo(void) __asm__ ("av_foo@VERSION");
2938 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2939 EOF
2940     check_cc <<EOF && enable symver_gnu_asm
2941 __asm__(".symver ff_foo,av_foo@VERSION");
2942 void ff_foo(void) {}
2943 EOF
2944 fi
2945
2946 if enabled small; then
2947     add_cflags $size_cflags
2948     optimizations="small"
2949 elif enabled optimizations; then
2950     add_cflags $speed_cflags
2951 else
2952     add_cflags $noopt_cflags
2953 fi
2954 check_cflags -fno-math-errno
2955 check_cflags -fno-signed-zeros
2956
2957 if enabled icc; then
2958     # Just warnings, no remarks
2959     check_cflags -w1
2960     # -wd: Disable following warnings
2961     # 144, 167, 556: -Wno-pointer-sign
2962     # 10006: ignoring unknown option -fno-signed-zeros
2963     # 10148: ignoring unknown option -Wno-parentheses
2964     # 10156: ignoring option '-W'; no argument required
2965     check_cflags -wd144,167,556,10006,10148,10156
2966     # 11030: Warning unknown option --as-needed
2967     # 10156: ignoring option '-export'; no argument required
2968     check_ldflags -wd10156,11030
2969     # Allow to compile with optimizations
2970     check_ldflags -march=$cpu
2971     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2972     enable ebp_available
2973     if enabled x86_32; then
2974         test ${icc_version%%.*} -ge 11 && \
2975             check_cflags -falign-stack=maintain-16-byte || \
2976             disable aligned_stack
2977     fi
2978 elif enabled ccc; then
2979     # disable some annoying warnings
2980     add_cflags -msg_disable cvtu32to64
2981     add_cflags -msg_disable embedcomment
2982     add_cflags -msg_disable needconstext
2983     add_cflags -msg_disable nomainieee
2984     add_cflags -msg_disable ptrmismatch1
2985     add_cflags -msg_disable unreachcode
2986 elif enabled gcc; then
2987     check_cflags -fno-tree-vectorize
2988     check_cflags -Werror=implicit-function-declaration
2989     check_cflags -Werror=missing-prototypes
2990 elif enabled llvm_gcc; then
2991     check_cflags -mllvm -stack-alignment=16
2992 elif enabled clang; then
2993     check_cflags -mllvm -stack-alignment=16
2994     check_cflags -Qunused-arguments
2995 elif enabled armcc; then
2996     # 2523: use of inline assembler is deprecated
2997     add_cflags -W${armcc_opt},--diag_suppress=2523
2998     add_cflags -W${armcc_opt},--diag_suppress=1207
2999     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3000     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3001 elif enabled tms470; then
3002     add_cflags -pds=824 -pds=837
3003 elif enabled pathscale; then
3004     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3005 fi
3006
3007 enabled_any $THREADS_LIST      && enable threads
3008
3009 check_deps $CONFIG_LIST       \
3010            $CONFIG_EXTRA      \
3011            $HAVE_LIST         \
3012            $DECODER_LIST      \
3013            $ENCODER_LIST      \
3014            $HWACCEL_LIST      \
3015            $PARSER_LIST       \
3016            $BSF_LIST          \
3017            $DEMUXER_LIST      \
3018            $MUXER_LIST        \
3019            $FILTER_LIST       \
3020            $INDEV_LIST        \
3021            $OUTDEV_LIST       \
3022            $PROTOCOL_LIST     \
3023            $ACODEC_TESTS      \
3024            $VCODEC_TESTS      \
3025            $LAVF_TESTS        \
3026            $LAVFI_TESTS       \
3027            $SEEK_TESTS        \
3028
3029 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3030
3031 echo "install prefix            $prefix"
3032 echo "source path               $source_path"
3033 echo "C compiler                $cc"
3034 echo "ARCH                      $arch ($cpu)"
3035 if test "$build_suffix" != ""; then
3036     echo "build suffix              $build_suffix"
3037 fi
3038 if test "$extra_version" != ""; then
3039     echo "version string suffix     $extra_version"
3040 fi
3041 echo "big-endian                ${bigendian-no}"
3042 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3043 if enabled x86; then
3044     echo "yasm                      ${yasm-no}"
3045     echo "MMX enabled               ${mmx-no}"
3046     echo "MMX2 enabled              ${mmx2-no}"
3047     echo "3DNow! enabled            ${amd3dnow-no}"
3048     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3049     echo "SSE enabled               ${sse-no}"
3050     echo "SSSE3 enabled             ${ssse3-no}"
3051     echo "CMOV enabled              ${cmov-no}"
3052     echo "CMOV is fast              ${fast_cmov-no}"
3053     echo "EBX available             ${ebx_available-no}"
3054     echo "EBP available             ${ebp_available-no}"
3055     echo "10 operands supported     ${ten_operands-no}"
3056 fi
3057 if enabled arm; then
3058     echo "ARMv5TE enabled           ${armv5te-no}"
3059     echo "ARMv6 enabled             ${armv6-no}"
3060     echo "ARMv6T2 enabled           ${armv6t2-no}"
3061     echo "ARM VFP enabled           ${armvfp-no}"
3062     echo "IWMMXT enabled            ${iwmmxt-no}"
3063     echo "NEON enabled              ${neon-no}"
3064 fi
3065 if enabled mips; then
3066     echo "MMI enabled               ${mmi-no}"
3067 fi
3068 if enabled ppc; then
3069     echo "AltiVec enabled           ${altivec-no}"
3070     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3071     echo "dcbzl available           ${dcbzl-no}"
3072 fi
3073 if enabled sparc; then
3074     echo "VIS enabled               ${vis-no}"
3075 fi
3076 echo "debug symbols             ${debug-no}"
3077 echo "strip symbols             ${stripping-no}"
3078 echo "optimizations             ${optimizations-no}"
3079 echo "static                    ${static-no}"
3080 echo "shared                    ${shared-no}"
3081 echo "postprocessing support    ${postproc-no}"
3082 echo "new filter support        ${avfilter-no}"
3083 echo "network support           ${network-no}"
3084 echo "threading support         ${thread_type-no}"
3085 echo "SDL support               ${sdl-no}"
3086 echo "Sun medialib support      ${mlib-no}"
3087 echo "AVISynth enabled          ${avisynth-no}"
3088 echo "frei0r enabled            ${frei0r-no}"
3089 echo "libdc1394 support         ${libdc1394-no}"
3090 echo "libdirac enabled          ${libdirac-no}"
3091 echo "libfaac enabled           ${libfaac-no}"
3092 echo "libgsm enabled            ${libgsm-no}"
3093 echo "libmp3lame enabled        ${libmp3lame-no}"
3094 echo "libnut enabled            ${libnut-no}"
3095 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3096 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3097 echo "libopencv support         ${libopencv-no}"
3098 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3099 echo "librtmp enabled           ${librtmp-no}"
3100 echo "libschroedinger enabled   ${libschroedinger-no}"
3101 echo "libspeex enabled          ${libspeex-no}"
3102 echo "libtheora enabled         ${libtheora-no}"
3103 echo "libvorbis enabled         ${libvorbis-no}"
3104 echo "libvpx enabled            ${libvpx-no}"
3105 echo "libx264 enabled           ${libx264-no}"
3106 echo "libxavs enabled           ${libxavs-no}"
3107 echo "libxvid enabled           ${libxvid-no}"
3108 echo "zlib enabled              ${zlib-no}"
3109 echo "bzlib enabled             ${bzlib-no}"
3110 echo
3111
3112 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3113     echo "Enabled ${type}s:"
3114     eval list=\$$(toupper $type)_LIST
3115     print_enabled '_*' $list | sort | pr -3 -t
3116     echo
3117 done
3118
3119 license="LGPL version 2.1 or later"
3120 if enabled nonfree; then
3121     license="nonfree and unredistributable"
3122 elif enabled gplv3; then
3123     license="GPL version 3 or later"
3124 elif enabled lgplv3; then
3125     license="LGPL version 3 or later"
3126 elif enabled gpl; then
3127     license="GPL version 2 or later"
3128 fi
3129
3130 echo "License: $license"
3131
3132 echo "Creating config.mak and config.h..."
3133
3134 # build tree in object directory if source path is different from current one
3135 if enabled source_path_used; then
3136     DIRS="
3137         doc
3138         libavcodec
3139         libavcodec/$arch
3140         libavcore
3141         libavdevice
3142         libavfilter
3143         libavfilter/$arch
3144         libavformat
3145         libavutil
3146         libavutil/$arch
3147         libpostproc
3148         libswscale
3149         libswscale/$arch
3150         tests
3151         tools
3152     "
3153     FILES="
3154         Makefile
3155         common.mak
3156         subdir.mak
3157         doc/texi2pod.pl
3158         libavcodec/Makefile
3159         libavcodec/${arch}/Makefile
3160         libavcore/Makefile
3161         libavdevice/Makefile
3162         libavfilter/Makefile
3163         libavfilter/${arch}/Makefile
3164         libavformat/Makefile
3165         libavutil/Makefile
3166         libpostproc/Makefile
3167         libswscale/Makefile
3168     "
3169     map 'mkdir -p $v' $DIRS;
3170     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3171 fi
3172
3173 enabled stripping || strip="echo skipping strip"
3174
3175 config_files="$TMPH config.mak"
3176
3177 cat > config.mak <<EOF
3178 # Automatically generated by configure - do not modify!
3179 ifndef FFMPEG_CONFIG_MAK
3180 FFMPEG_CONFIG_MAK=1
3181 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3182 prefix=$prefix
3183 LIBDIR=\$(DESTDIR)$libdir
3184 SHLIBDIR=\$(DESTDIR)$shlibdir
3185 INCDIR=\$(DESTDIR)$incdir
3186 BINDIR=\$(DESTDIR)$bindir
3187 DATADIR=\$(DESTDIR)$datadir
3188 MANDIR=\$(DESTDIR)$mandir
3189 SRC_PATH="$source_path"
3190 SRC_PATH_BARE=$source_path
3191 BUILD_ROOT="$PWD"
3192 CC_IDENT=$cc_ident
3193 ARCH=$arch
3194 CC=$cc
3195 AS=$as
3196 LD=$ld
3197 DEPCC=$dep_cc
3198 YASM=$yasmexe
3199 YASMDEP=$yasmexe
3200 AR=$ar
3201 RANLIB=$ranlib
3202 CP=cp -p
3203 LN_S=$ln_s
3204 STRIP=$strip
3205 CPPFLAGS=$CPPFLAGS
3206 CFLAGS=$CFLAGS
3207 ASFLAGS=$ASFLAGS
3208 CC_O=$CC_O
3209 LDFLAGS=$LDFLAGS
3210 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3211 SHFLAGS=$SHFLAGS
3212 YASMFLAGS=$YASMFLAGS
3213 BUILDSUF=$build_suffix
3214 FULLNAME=$FULLNAME
3215 LIBPREF=$LIBPREF
3216 LIBSUF=$LIBSUF
3217 LIBNAME=$LIBNAME
3218 SLIBPREF=$SLIBPREF
3219 SLIBSUF=$SLIBSUF
3220 EXESUF=$EXESUF
3221 EXTRA_VERSION=$extra_version
3222 DEPFLAGS=$DEPFLAGS
3223 CCDEP=$CCDEP
3224 ASDEP=$ASDEP
3225 CC_DEPFLAGS=$CC_DEPFLAGS
3226 AS_DEPFLAGS=$AS_DEPFLAGS
3227 HOSTCC=$host_cc
3228 HOSTCFLAGS=$host_cflags
3229 HOSTEXESUF=$HOSTEXESUF
3230 HOSTLDFLAGS=$host_ldflags
3231 HOSTLIBS=$host_libs
3232 TARGET_EXEC=$target_exec
3233 TARGET_PATH=$target_path
3234 SDL_LIBS=$sdl_libs
3235 SDL_CFLAGS=$sdl_cflags
3236 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3237 EXTRALIBS=$extralibs
3238 INSTALL=install
3239 LIBTARGET=${LIBTARGET}
3240 SLIBNAME=${SLIBNAME}
3241 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3242 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3243 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3244 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3245 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3246 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3247 SAMPLES=$samples
3248 EOF
3249
3250 get_version(){
3251     name=$1
3252     file=$source_path/$2
3253     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3254     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3255     lcname=$(tolower $name)
3256     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3257     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3258 }
3259
3260 get_version LIBSWSCALE  libswscale/swscale.h
3261 get_version LIBPOSTPROC libpostproc/postprocess.h
3262 get_version LIBAVCODEC  libavcodec/avcodec.h
3263 get_version LIBAVCORE   libavcore/avcore.h
3264 get_version LIBAVDEVICE libavdevice/avdevice.h
3265 get_version LIBAVFORMAT libavformat/version.h
3266 get_version LIBAVUTIL   libavutil/avutil.h
3267 get_version LIBAVFILTER libavfilter/avfilter.h
3268
3269 cat > $TMPH <<EOF
3270 /* Automatically generated by configure - do not modify! */
3271 #ifndef FFMPEG_CONFIG_H
3272 #define FFMPEG_CONFIG_H
3273 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3274 #define FFMPEG_LICENSE "$(c_escape $license)"
3275 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3276 #define CC_TYPE "$cc_type"
3277 #define CC_VERSION $cc_version
3278 #define restrict $_restrict
3279 #define EXTERN_PREFIX "${extern_prefix}"
3280 #define EXTERN_ASM ${extern_prefix}
3281 #define SLIBSUF "$SLIBSUF"
3282 EOF
3283
3284 test -n "$malloc_prefix" &&
3285     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3286
3287 if enabled small || disabled optimizations; then
3288     echo "#undef  av_always_inline"  >> $TMPH
3289     if enabled small; then
3290         echo "#define av_always_inline inline"  >> $TMPH
3291     else
3292         echo "#define av_always_inline av_unused"  >> $TMPH
3293     fi
3294 fi
3295
3296 if enabled yasm; then
3297     append config_files $TMPASM
3298     printf '' >$TMPASM
3299 fi
3300
3301 print_config ARCH_   "$config_files" $ARCH_LIST
3302 print_config HAVE_   "$config_files" $HAVE_LIST
3303 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3304                                      $CONFIG_EXTRA      \
3305                                      $DECODER_LIST      \
3306                                      $ENCODER_LIST      \
3307                                      $HWACCEL_LIST      \
3308                                      $PARSER_LIST       \
3309                                      $BSF_LIST          \
3310                                      $DEMUXER_LIST      \
3311                                      $MUXER_LIST        \
3312                                      $FILTER_LIST       \
3313                                      $PROTOCOL_LIST     \
3314                                      $INDEV_LIST        \
3315                                      $OUTDEV_LIST       \
3316
3317 cat >>config.mak <<EOF
3318 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3319 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3320 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3321 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3322 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3323 EOF
3324
3325 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3326 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3327
3328 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3329 cp_if_changed $TMPH config.h
3330 touch .config
3331
3332 enabled yasm && cp_if_changed $TMPASM config.asm
3333
3334 cat > $TMPH <<EOF
3335 /* Generated by ffconf */
3336 #ifndef AVUTIL_AVCONFIG_H
3337 #define AVUTIL_AVCONFIG_H
3338 EOF
3339
3340 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3341
3342 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3343
3344 cp_if_changed $TMPH libavutil/avconfig.h
3345
3346 test -n "$WARNINGS" && printf "\n$WARNINGS"
3347
3348 # build pkg-config files
3349
3350 pkgconfig_generate(){
3351 name=$1
3352 shortname=${name#lib}${build_suffix}
3353 comment=$2
3354 version=$3
3355 libs=$4
3356 requires=$5
3357 enabled ${name#lib} || return 0
3358 cat <<EOF > $name/$name.pc
3359 prefix=$prefix
3360 exec_prefix=\${prefix}
3361 libdir=$libdir
3362 includedir=$incdir
3363
3364 Name: $name
3365 Description: $comment
3366 Version: $version
3367 Requires: $(enabled shared || echo $requires)
3368 Requires.private: $(enabled shared && echo $requires)
3369 Conflicts:
3370 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3371 Libs.private: $(enabled shared && echo $libs)
3372 Cflags: -I\${includedir}
3373 EOF
3374 cat <<EOF > $name/$name-uninstalled.pc
3375 prefix=
3376 exec_prefix=
3377 libdir=\${pcfiledir}
3378 includedir=${source_path}
3379
3380 Name: $name
3381 Description: $comment
3382 Version: $version
3383 Requires: $requires
3384 Conflicts:
3385 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3386 Cflags: -I\${includedir}
3387 EOF
3388 }
3389
3390 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3391 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3392 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3393 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3394 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3395 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3396 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3397 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"