add APIChanges entry for fe9a3fb
[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 mp_filter_deps="gpl"
1427 scale_filter_deps="swscale"
1428 ocv_filter_deps="libopencv"
1429 yadif_filter_deps="gpl"
1430
1431 # libraries
1432 avdevice_deps="avcodec avformat"
1433 avformat_deps="avcodec"
1434
1435 # programs
1436 ffmpeg_deps="avcodec avformat swscale"
1437 ffmpeg_select="buffer_filter"
1438 ffplay_deps="avcodec avformat swscale sdl"
1439 ffplay_select="rdft"
1440 ffprobe_deps="avcodec avformat"
1441 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1442 ffserver_extralibs='$ldl'
1443
1444 doc_deps="texi2html"
1445
1446 # tests
1447
1448 test_deps(){
1449     suf1=$1
1450     suf2=$2
1451     shift 2
1452     for v; do
1453         dep=${v%=*}
1454         tests=${v#*=}
1455         for name in ${tests}; do
1456             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1457         done
1458     done
1459 }
1460
1461 set_ne_test_deps(){
1462     eval ${1}_be_test_deps="bigendian"
1463     eval ${1}_le_test_deps="!bigendian"
1464 }
1465
1466 test_deps _encoder _decoder                                             \
1467     adpcm_g726=g726                                                     \
1468     adpcm_ima_qt                                                        \
1469     adpcm_ima_wav                                                       \
1470     adpcm_ms                                                            \
1471     adpcm_swf                                                           \
1472     adpcm_yamaha=adpcm_yam                                              \
1473     alac                                                                \
1474     asv1                                                                \
1475     asv2                                                                \
1476     bmp                                                                 \
1477     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1478     dvvideo="dv dv50"                                                   \
1479     ffv1                                                                \
1480     flac                                                                \
1481     flashsv                                                             \
1482     flv                                                                 \
1483     gif                                                                 \
1484     h261                                                                \
1485     h263="h263 h263p"                                                   \
1486     huffyuv                                                             \
1487     jpegls                                                              \
1488     mjpeg="jpg mjpeg ljpeg"                                             \
1489     mp2                                                                 \
1490     mpeg1video="mpeg mpeg1b"                                            \
1491     mpeg2video="mpeg2 mpeg2thread"                                      \
1492     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1493     msmpeg4v3=msmpeg4                                                   \
1494     msmpeg4v2                                                           \
1495     pbm=pbmpipe                                                         \
1496     pcx                                                                 \
1497     pgm="pgm pgmpipe"                                                   \
1498     png                                                                 \
1499     ppm="ppm ppmpipe"                                                   \
1500     rawvideo="rgb yuv"                                                  \
1501     roq                                                                 \
1502     rv10                                                                \
1503     rv20                                                                \
1504     sgi                                                                 \
1505     snow="snow snowll"                                                  \
1506     svq1                                                                \
1507     targa=tga                                                           \
1508     tiff                                                                \
1509     wmav1                                                               \
1510     wmav2                                                               \
1511     wmv1                                                                \
1512     wmv2                                                                \
1513
1514 test_deps _muxer _demuxer                                               \
1515     aiff                                                                \
1516     pcm_alaw=alaw                                                       \
1517     asf                                                                 \
1518     au                                                                  \
1519     avi                                                                 \
1520     dv=dv_fmt                                                           \
1521     ffm                                                                 \
1522     flv=flv_fmt                                                         \
1523     gxf                                                                 \
1524     matroska=mkv                                                        \
1525     mmf                                                                 \
1526     mov                                                                 \
1527     pcm_mulaw=mulaw                                                     \
1528     mxf                                                                 \
1529     nut                                                                 \
1530     ogg                                                                 \
1531     rawvideo=pixfmt                                                     \
1532     rm                                                                  \
1533     swf                                                                 \
1534     mpegts=ts                                                           \
1535     voc                                                                 \
1536     wav                                                                 \
1537     yuv4mpegpipe=yuv4mpeg                                               \
1538
1539 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1540 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1541
1542 set_ne_test_deps pixdesc
1543 set_ne_test_deps pixfmts_copy
1544 set_ne_test_deps pixfmts_crop
1545 set_ne_test_deps pixfmts_hflip
1546 set_ne_test_deps pixfmts_null
1547 set_ne_test_deps pixfmts_pad
1548 set_ne_test_deps pixfmts_scale
1549 set_ne_test_deps pixfmts_vflip
1550
1551 # default parameters
1552
1553 logfile="config.log"
1554
1555 # installation paths
1556 prefix_default="/usr/local"
1557 bindir_default='${prefix}/bin'
1558 datadir_default='${prefix}/share/ffmpeg'
1559 incdir_default='${prefix}/include'
1560 libdir_default='${prefix}/lib'
1561 mandir_default='${prefix}/share/man'
1562 shlibdir_default="$libdir_default"
1563
1564 # toolchain
1565 ar_default="ar"
1566 cc_default="gcc"
1567 cc_version=\"unknown\"
1568 host_cc_default="gcc"
1569 ln_s="ln -sf"
1570 nm_default="nm"
1571 objformat="elf"
1572 ranlib="ranlib"
1573 strip_default="strip"
1574 yasmexe="yasm"
1575 nogas=":"
1576
1577 nm_opts='-g'
1578
1579 # machine
1580 arch_default=$(uname -m)
1581 cpu="generic"
1582
1583 # OS
1584 target_os_default=$(tolower $(uname -s))
1585 host_os=$target_os_default
1586
1587 # configurable options
1588 enable avcodec
1589 enable avcore
1590 enable avdevice
1591 enable avfilter
1592 enable avformat
1593 enable avutil
1594 enable asm
1595 enable debug
1596 enable doc
1597 enable fastdiv
1598 enable ffmpeg
1599 enable ffplay
1600 enable ffprobe
1601 enable ffserver
1602 enable mpegaudio_hp
1603 enable network
1604 enable optimizations
1605 enable protocols
1606 enable static
1607 enable stripping
1608 enable swscale
1609 enable swscale_alpha
1610
1611 # build settings
1612 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1613 FFSERVERLDFLAGS=-Wl,-E
1614 LIBPREF="lib"
1615 LIBSUF=".a"
1616 FULLNAME='$(NAME)$(BUILDSUF)'
1617 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1618 SLIBPREF="lib"
1619 SLIBSUF=".so"
1620 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1621 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1622 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1623 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1624
1625 CC_O='-o $@'
1626
1627 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1628 host_libs='-lm'
1629
1630 target_path='$(CURDIR)'
1631
1632 # since the object filename is not given with the -MM flag, the compiler
1633 # is only able to print the basename, and we must add the path ourselves
1634 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1635 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1636
1637 # find source path
1638 source_path="$(dirname "$0")"
1639 enable source_path_used
1640 if test -f configure; then
1641     source_path="$(pwd)"
1642     disable source_path_used
1643 else
1644     source_path="$(cd "$source_path"; pwd)"
1645     echo "$source_path" | grep -q '[[:blank:]]' &&
1646         die "Out of tree builds are impossible with whitespace in source path."
1647     test -e "$source_path/config.h" &&
1648         die "Out of tree builds are impossible with config.h in source dir."
1649 fi
1650
1651 for v in "$@"; do
1652     r=${v#*=}
1653     l=${v%"$r"}
1654     r=$(sh_quote "$r")
1655     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1656 done
1657
1658 find_things(){
1659     thing=$1
1660     pattern=$2
1661     file=$source_path/$3
1662     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1663 }
1664
1665 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1666 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1667 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1668 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1669 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1670 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1671 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1672 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1673 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1674 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1675 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1676
1677 find_tests(){
1678     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1679 }
1680
1681 ACODEC_TESTS=$(find_tests acodec)
1682 VCODEC_TESTS=$(find_tests vsynth1)
1683 LAVF_TESTS=$(find_tests lavf)
1684 LAVFI_TESTS=$(find_tests lavfi)
1685 SEEK_TESTS=$(find_tests seek seek_)
1686
1687 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1688
1689 for n in $COMPONENT_LIST; do
1690     v=$(toupper ${n%s})_LIST
1691     eval enable \$$v
1692     eval ${n}_if_any="\$$v"
1693 done
1694
1695 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1696
1697 die_unknown(){
1698     echo "Unknown option \"$1\"."
1699     echo "See $0 --help for available options."
1700     exit 1
1701 }
1702
1703 show_list() {
1704     suffix=_$1
1705     shift
1706     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1707     exit 0
1708 }
1709
1710 for opt do
1711     optval="${opt#*=}"
1712     case "$opt" in
1713     --extra-ldflags=*) add_ldflags $optval
1714     ;;
1715     --extra-libs=*) add_extralibs $optval
1716     ;;
1717     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1718     ;;
1719     --enable-debug=*) debuglevel="$optval"
1720     ;;
1721     --disable-everything)
1722     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1723     ;;
1724     --enable-*=*|--disable-*=*)
1725     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1726     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1727     eval list=\$$(toupper $thing)_LIST
1728     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1729     $action $(filter "$name" $list)
1730     ;;
1731     --enable-?*|--disable-?*)
1732     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1733     if is_in $option $COMPONENT_LIST; then
1734         test $action = disable && action=unset
1735         eval $action \$$(toupper ${option%s})_LIST
1736     elif is_in $option $CMDLINE_SELECT; then
1737         $action $option
1738     else
1739         die_unknown $opt
1740     fi
1741     ;;
1742     --list-*)
1743         NAME="${opt#--list-}"
1744         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1745         NAME=${NAME%s}
1746         eval show_list $NAME \$$(toupper $NAME)_LIST
1747     ;;
1748     --help|-h) show_help
1749     ;;
1750     *)
1751     optname="${opt%%=*}"
1752     optname="${optname#--}"
1753     optname=$(echo "$optname" | sed 's/-/_/g')
1754     if is_in $optname $CMDLINE_SET; then
1755         eval $optname='$optval'
1756     elif is_in $optname $CMDLINE_APPEND; then
1757         append $optname "$optval"
1758     else
1759          die_unknown $opt
1760     fi
1761     ;;
1762     esac
1763 done
1764
1765 disabled logging && logfile=/dev/null
1766
1767 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1768 set >> $logfile
1769
1770 test -n "$cross_prefix" && enable cross_compile
1771
1772 if enabled cross_compile; then
1773     test -n "$arch" && test -n "$target_os" ||
1774         die "Must specify target arch and OS when cross-compiling"
1775 fi
1776
1777 set_default arch target_os
1778
1779 ar_default="${cross_prefix}${ar_default}"
1780 cc_default="${cross_prefix}${cc_default}"
1781 nm_default="${cross_prefix}${nm_default}"
1782 ranlib="${cross_prefix}${ranlib}"
1783 strip_default="${cross_prefix}${strip_default}"
1784
1785 sysinclude_default="${sysroot}/usr/include"
1786
1787 set_default cc nm strip sysinclude
1788 enabled cross_compile || host_cc_default=$cc
1789 set_default host_cc
1790
1791 exesuf() {
1792     case $1 in
1793         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1794     esac
1795 }
1796
1797 EXESUF=$(exesuf $target_os)
1798 HOSTEXESUF=$(exesuf $host_os)
1799
1800 # set temporary file name
1801 : ${TMPDIR:=$TEMPDIR}
1802 : ${TMPDIR:=$TMP}
1803 : ${TMPDIR:=/tmp}
1804
1805 if ! check_cmd mktemp -u XXXXXX; then
1806     # simple replacement for missing mktemp
1807     # NOT SAFE FOR GENERAL USE
1808     mktemp(){
1809         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1810     }
1811 fi
1812
1813 tmpfile(){
1814     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1815         (set -C; exec > $tmp) 2>/dev/null ||
1816         die "Unable to create temporary file in $TMPDIR."
1817     append TMPFILES $tmp
1818     eval $1=$tmp
1819 }
1820
1821 trap 'rm -f -- $TMPFILES' EXIT
1822
1823 tmpfile TMPC  .c
1824 tmpfile TMPE  $EXESUF
1825 tmpfile TMPH  .h
1826 tmpfile TMPO  .o
1827 tmpfile TMPS  .S
1828 tmpfile TMPV  .ver
1829 tmpfile TMPSH .sh
1830 tmpfile TMPASM .asm
1831
1832 unset -f mktemp
1833
1834 chmod +x $TMPE
1835
1836 # make sure we can execute files in $TMPDIR
1837 cat > $TMPSH 2>> $logfile <<EOF
1838 #! /bin/sh
1839 EOF
1840 chmod +x $TMPSH >> $logfile 2>&1
1841 if ! $TMPSH >> $logfile 2>&1; then
1842     cat <<EOF
1843 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1844 variable to another directory and make sure that it is not mounted noexec.
1845 EOF
1846     die "Sanity test failed."
1847 fi
1848
1849 filter_cflags=echo
1850 filter_cppflags=echo
1851 filter_asflags=echo
1852
1853 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1854     cc_type=llvm_gcc
1855     cc_version=__VERSION__
1856     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1857     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1858     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1859     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1860     speed_cflags='-O3'
1861     size_cflags='-Os'
1862 elif $cc -v 2>&1 | grep -qi ^gcc; then
1863     cc_type=gcc
1864     cc_version=__VERSION__
1865     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1866     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1867     if ! $cc -dumpversion | grep -q '^2\.'; then
1868         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1869         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1870     fi
1871     speed_cflags='-O3'
1872     size_cflags='-Os'
1873 elif $cc --version 2>/dev/null | grep -q Intel; then
1874     cc_type=icc
1875     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1876     cc_ident=$($cc --version | head -n1)
1877     icc_version=$($cc -dumpversion)
1878     CC_DEPFLAGS='-MMD'
1879     AS_DEPFLAGS='-MMD'
1880     speed_cflags='-O3'
1881     size_cflags='-Os'
1882     noopt_cflags='-O1'
1883 elif $cc -v 2>&1 | grep -q xlc; then
1884     cc_type=xlc
1885     cc_version="AV_STRINGIFY(__IBMC__)"
1886     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1887     speed_cflags='-O5'
1888     size_cflags='-O5 -qcompact'
1889 elif $cc -V 2>/dev/null | grep -q Compaq; then
1890     cc_type=ccc
1891     cc_version="AV_STRINGIFY(__DECC_VER)"
1892     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1893     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1894     debuglevel=3
1895     add_ldflags -Wl,-z,now # calls to libots crash without this
1896     speed_cflags='-fast'
1897     size_cflags='-O1'
1898 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1899     test -d "$sysroot" || die "No valid sysroot specified."
1900     cc_type=armcc
1901     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1902     cc_ident=$($cc --vsn | head -n1)
1903     armcc_conf="$PWD/armcc.conf"
1904     $cc --arm_linux_configure                 \
1905         --arm_linux_config_file="$armcc_conf" \
1906         --configure_sysroot="$sysroot"        \
1907         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1908         die "Error creating armcc configuration file."
1909     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1910     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1911     as_default="${cross_prefix}gcc"
1912     CC_DEPFLAGS='-MMD'
1913     AS_DEPFLAGS='-MMD'
1914     speed_cflags='-O3'
1915     size_cflags='-Os'
1916     filter_asflags="filter_out -W${armcc_opt}*"
1917 elif $cc -version 2>/dev/null | grep -q TMS470; then
1918     cc_type=tms470
1919     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1920     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1921     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1922     CC_O='-fr=$(@D)'
1923     as_default="${cross_prefix}gcc"
1924     ld_default="${cross_prefix}gcc"
1925     TMPO=$(basename $TMPC .c).o
1926     append TMPFILES $TMPO
1927     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1928     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1929     AS_DEPFLAGS='-MMD'
1930     speed_cflags='-O3 -mf=5'
1931     size_cflags='-O3 -mf=2'
1932     filter_cflags=tms470_flags
1933     tms470_flags(){
1934         for flag; do
1935             case $flag in
1936                 -march=*|-mcpu=*)
1937                     case "${flag#*=}" in
1938                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1939                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1940                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1941                         armv6*|arm11*)          echo -mv=6   ;;
1942                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1943                                                 echo -mv=5e  ;;
1944                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1945                     esac
1946                     ;;
1947                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1948                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1949                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1950                 -msoft-float)   echo --float_support=vfplib       ;;
1951                 -O[0-3]|-mf=*)  echo $flag                        ;;
1952                 -g)             echo -g -mn                       ;;
1953                 -pds=*)         echo $flag                        ;;
1954             esac
1955         done
1956     }
1957 elif $cc -v 2>&1 | grep -q clang; then
1958     cc_type=clang
1959     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1960         cc_version=__clang_version__ || cc_version=__VERSION__
1961     cc_ident=$($cc --version | head -n1)
1962     CC_DEPFLAGS='-MMD'
1963     AS_DEPFLAGS='-MMD'
1964     speed_cflags='-O3'
1965     size_cflags='-Os'
1966 elif $cc -V 2>&1 | grep -q Sun; then
1967     cc_type=suncc
1968     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1969     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1970     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1971     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1972     speed_cflags='-O5'
1973     size_cflags='-O5 -xspace'
1974     filter_cflags=suncc_flags
1975     suncc_flags(){
1976         for flag; do
1977             case $flag in
1978                 -march=*|-mcpu=*)
1979                     case "${flag#*=}" in
1980                         native)                   echo -xtarget=native       ;;
1981                         v9|niagara)               echo -xarch=sparc          ;;
1982                         ultrasparc)               echo -xarch=sparcvis       ;;
1983                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1984                         i586|pentium)             echo -xchip=pentium        ;;
1985                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1986                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1987                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1988                         pentium4*)          echo -xtarget=pentium4           ;;
1989                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1990                         *-sse3)             echo -xarch=sse3                 ;;
1991                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1992                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1993                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1994                         k8|opteron|athlon64|athlon-fx)
1995                                                   echo -xarch=sse2a          ;;
1996                         athlon*)                  echo -xarch=pentium_proa   ;;
1997                     esac
1998                     ;;
1999                 -std=c99)             echo -xc99              ;;
2000                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2001                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2002                 -W*,*)                echo $flag              ;;
2003                 -f*-*|-W*)                                    ;;
2004                 *)                    echo $flag              ;;
2005             esac
2006         done
2007     }
2008 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2009     cc_type=pathscale
2010     cc_version=__PATHSCALE__
2011     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2012     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2013     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2014     speed_cflags='-O2'
2015     size_cflags='-Os'
2016 elif $cc -v 2>&1 | grep -q Open64; then
2017     cc_type=open64
2018     cc_version=__OPEN64__
2019     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2020     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2021     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2022     speed_cflags='-O2'
2023     size_cflags='-Os'
2024 fi
2025
2026 test -n "$cc_type" && enable $cc_type ||
2027     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2028
2029 : ${as_default:=$cc}
2030 : ${dep_cc_default:=$cc}
2031 : ${ld_default:=$cc}
2032 set_default ar as dep_cc ld
2033
2034 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2035 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2036
2037 add_cflags $extra_cflags
2038 add_asflags $extra_cflags
2039
2040 if test -n "$sysroot"; then
2041     case "$cc_type" in
2042         gcc|llvm_gcc)
2043             add_cppflags --sysroot="$sysroot"
2044             add_ldflags --sysroot="$sysroot"
2045         ;;
2046         tms470)
2047             add_cppflags -I"$sysinclude"
2048             add_ldflags  --sysroot="$sysroot"
2049         ;;
2050         clang)
2051             add_cppflags -isysroot "$sysroot"
2052             add_ldflags -isysroot "$sysroot"
2053         ;;
2054     esac
2055 fi
2056
2057 if test "$cpu" = host; then
2058     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2059
2060     case "$cc_type" in
2061         gcc|llvm_gcc)
2062             check_native(){
2063                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2064                 sed -n "/$1=/{
2065                             s/.*$1=\\([^ ]*\\).*/\\1/
2066                             p
2067                             q
2068                         }" $TMPE
2069             }
2070             cpu=$(check_native -march || check_native -mcpu)
2071         ;;
2072     esac
2073
2074     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2075 fi
2076
2077 # Deal with common $arch aliases
2078 case "$arch" in
2079     arm*)
2080         arch="arm"
2081     ;;
2082     mips|mipsel|IP*)
2083         arch="mips"
2084     ;;
2085     mips64*)
2086         arch="mips"
2087         subarch="mips64"
2088     ;;
2089     parisc|hppa)
2090         arch="parisc"
2091     ;;
2092     parisc64|hppa64)
2093         arch="parisc"
2094         subarch="parisc64"
2095     ;;
2096     "Power Macintosh"|ppc|powerpc)
2097         arch="ppc"
2098     ;;
2099     ppc64|powerpc64)
2100         arch="ppc"
2101         subarch="ppc64"
2102     ;;
2103     s390|s390x)
2104         arch="s390"
2105     ;;
2106     sh4|sh)
2107         arch="sh4"
2108     ;;
2109     sun4u|sparc64)
2110         arch="sparc"
2111         subarch="sparc64"
2112     ;;
2113     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2114         arch="x86"
2115     ;;
2116 esac
2117
2118 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2119 enable $arch
2120
2121 # Add processor-specific flags
2122 if test "$cpu" = generic; then
2123     : do nothing
2124 elif enabled ppc; then
2125
2126     case $(tolower $cpu) in
2127         601|ppc601|powerpc601)
2128             cpuflags="-mcpu=601"
2129             disable altivec
2130         ;;
2131         603*|ppc603*|powerpc603*)
2132             cpuflags="-mcpu=603"
2133             disable altivec
2134         ;;
2135         604*|ppc604*|powerpc604*)
2136             cpuflags="-mcpu=604"
2137             disable altivec
2138         ;;
2139         g3|75*|ppc75*|powerpc75*)
2140             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2141             disable altivec
2142         ;;
2143         g4|745*|ppc745*|powerpc745*)
2144             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2145         ;;
2146         74*|ppc74*|powerpc74*)
2147             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2148         ;;
2149         g5|970|ppc970|powerpc970|power4*)
2150             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2151         ;;
2152         cell)
2153             cpuflags="-mcpu=cell"
2154             enable ldbrx
2155         ;;
2156         e500v2)
2157             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2158             disable altivec
2159         ;;
2160         e500)
2161             cpuflags="-mcpu=8540 -mhard-float"
2162             disable altivec
2163         ;;
2164     esac
2165
2166 elif enabled x86; then
2167
2168     case $cpu in
2169         i[345]86|pentium)
2170             cpuflags="-march=$cpu"
2171             disable mmx
2172         ;;
2173         # targets that do NOT support conditional mov (cmov)
2174         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2175             cpuflags="-march=$cpu"
2176             disable cmov
2177         ;;
2178         # targets that do support conditional mov (cmov)
2179         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2180             cpuflags="-march=$cpu"
2181             enable cmov
2182             enable fast_cmov
2183         ;;
2184         # targets that do support conditional mov but on which it's slow
2185         pentium4|pentium4m|prescott|nocona)
2186             cpuflags="-march=$cpu"
2187             enable cmov
2188             disable fast_cmov
2189         ;;
2190     esac
2191
2192 elif enabled sparc; then
2193
2194     case $cpu in
2195         niagara)
2196             cpuflags="-mcpu=$cpu"
2197             disable vis
2198         ;;
2199         sparc64)
2200             cpuflags="-mcpu=v9"
2201         ;;
2202     esac
2203
2204 elif enabled arm; then
2205
2206     case $cpu in
2207         armv*)
2208             cpuflags="-march=$cpu"
2209             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2210         ;;
2211         *)
2212             cpuflags="-mcpu=$cpu"
2213             case $cpu in
2214                 cortex-a*)                               subarch=armv7a  ;;
2215                 cortex-r*)                               subarch=armv7r  ;;
2216                 cortex-m*)                               subarch=armv7m  ;;
2217                 arm11*)                                  subarch=armv6   ;;
2218                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2219                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2220             esac
2221         ;;
2222     esac
2223
2224 elif enabled alpha; then
2225
2226     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2227
2228 elif enabled bfin; then
2229
2230     cpuflags="-mcpu=$cpu"
2231
2232 elif enabled mips; then
2233
2234     cpuflags="-march=$cpu"
2235
2236 elif enabled avr32; then
2237
2238     case $cpu in
2239         ap7[02]0[0-2])
2240             subarch="avr32_ap"
2241             cpuflags="-mpart=$cpu"
2242         ;;
2243         ap)
2244             subarch="avr32_ap"
2245             cpuflags="-march=$cpu"
2246         ;;
2247         uc3[ab]*)
2248             subarch="avr32_uc"
2249             cpuflags="-mcpu=$cpu"
2250         ;;
2251         uc)
2252             subarch="avr32_uc"
2253             cpuflags="-march=$cpu"
2254         ;;
2255     esac
2256
2257 fi
2258
2259 add_cflags $cpuflags
2260 add_asflags $cpuflags
2261
2262 # compiler sanity check
2263 check_exec <<EOF
2264 int main(void){ return 0; }
2265 EOF
2266 if test "$?" != 0; then
2267     echo "$cc is unable to create an executable file."
2268     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2269         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2270         echo "Only do this if you know what cross compiling means."
2271     fi
2272     die "C compiler test failed."
2273 fi
2274
2275 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2276 check_cflags -std=c99
2277 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2278 #include <stdlib.h>
2279 EOF
2280 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2281 #include <stdlib.h>
2282 EOF
2283
2284 check_host_cflags -std=c99
2285
2286 case "$arch" in
2287     alpha|ia64|mips|parisc|sparc)
2288         spic=$shared
2289     ;;
2290     x86)
2291         subarch="x86_32"
2292         check_cc <<EOF && subarch="x86_64"
2293         int test[(int)sizeof(char*) - 7];
2294 EOF
2295         if test "$subarch" = "x86_64"; then
2296             spic=$shared
2297         fi
2298     ;;
2299 esac
2300
2301 enable $subarch
2302 enabled spic && enable pic
2303
2304 # OS specific
2305 case $target_os in
2306     haiku)
2307         prefix_default="/boot/common"
2308         network_extralibs="-lnetwork"
2309         ;;
2310     sunos)
2311         FFSERVERLDFLAGS=""
2312         SHFLAGS='-shared -Wl,-h,$$(@F)'
2313         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2314         network_extralibs="-lsocket -lnsl"
2315         add_cppflags -D__EXTENSIONS__
2316         nm_opts='-P -g'
2317         ;;
2318     netbsd)
2319         disable symver
2320         oss_indev_extralibs="-lossaudio"
2321         oss_outdev_extralibs="-lossaudio"
2322         add_cppflags -D_XOPEN_SOURCE=600
2323         ;;
2324     openbsd)
2325         enable malloc_aligned
2326         # On OpenBSD 4.5. the compiler does not use PIC unless
2327         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2328         # however the generated executable will not do anything
2329         # (simply quits with exit-code 1, no crash, no output).
2330         # Thus explicitly enable PIC here.
2331         enable pic
2332         disable symver
2333         SHFLAGS='-shared'
2334         oss_indev_extralibs="-lossaudio"
2335         oss_outdev_extralibs="-lossaudio"
2336         ;;
2337     dragonfly)
2338         enable malloc_aligned
2339         disable symver
2340         ;;
2341     freebsd)
2342         enable malloc_aligned
2343         ;;
2344     bsd/os)
2345         add_extralibs -lpoll -lgnugetopt
2346         strip="strip -d"
2347         ;;
2348     darwin)
2349         enable malloc_aligned
2350         gas="gas-preprocessor.pl $cc"
2351         enabled ppc && add_asflags -force_cpusubtype_ALL
2352         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2353         strip="${strip} -x"
2354         add_ldflags -Wl,-dynamic,-search_paths_first
2355         SLIBSUF=".dylib"
2356         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2357         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2358         FFSERVERLDFLAGS=-Wl,-bind_at_load
2359         objformat="macho"
2360         enabled x86_64 && objformat="macho64"
2361         enabled_any pic shared ||
2362             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2363         ;;
2364     mingw32*)
2365         if test $target_os = "mingw32ce"; then
2366             disable network
2367         else
2368             target_os=mingw32
2369         fi
2370         LIBTARGET=i386
2371         if enabled x86_64; then
2372             enable malloc_aligned
2373             LIBTARGET=x64
2374         elif enabled arm; then
2375             LIBTARGET=arm
2376         fi
2377         shlibdir_default="$bindir_default"
2378         disable ffserver
2379         SLIBPREF=""
2380         SLIBSUF=".dll"
2381         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2382         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2383         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2384         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2385             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2386             install -d "$(LIBDIR)"; \
2387             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2388         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2389         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'
2390         objformat="win32"
2391         enable dos_paths
2392         check_cflags -fno-common
2393         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2394                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2395                 die "ERROR: MinGW runtime version must be >= 3.15."
2396         ;;
2397     cygwin*)
2398         target_os=cygwin
2399         shlibdir_default="$bindir_default"
2400         SLIBPREF="cyg"
2401         SLIBSUF=".dll"
2402         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2403         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2404         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2405         objformat="win32"
2406         enable dos_paths
2407         check_cflags -fno-common
2408         ;;
2409     *-dos|freedos|opendos)
2410         disable ffplay ffserver
2411         disable $INDEV_LIST $OUTDEV_LIST
2412         network_extralibs="-lsocket"
2413         objformat="coff"
2414         enable dos_paths
2415         ;;
2416     linux)
2417         enable dv1394
2418         ;;
2419     irix*)
2420         target_os=irix
2421         ranlib="echo ignoring ranlib"
2422         ;;
2423     os/2*)
2424         strip="lxlite"
2425         ln_s="cp -f"
2426         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2427         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2428         FFSERVERLDFLAGS=""
2429         LIBSUF="_s.a"
2430         SLIBPREF=""
2431         SLIBSUF=".dll"
2432         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2433         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2434         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2435           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2436           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2437           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2438           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2439           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2440         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2441           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2442         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2443         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2444         enable dos_paths
2445         ;;
2446     gnu/kfreebsd)
2447         ;;
2448     gnu)
2449         ;;
2450     qnx)
2451         add_cppflags -D_QNX_SOURCE
2452         network_extralibs="-lsocket"
2453         ;;
2454     none)
2455         ;;
2456     *)
2457         die "Unknown OS '$target_os'."
2458         ;;
2459 esac
2460
2461 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2462
2463 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2464
2465 set_default $PATHS_LIST
2466
2467 # we need to build at least one lib type
2468 if ! enabled_any static shared; then
2469     cat <<EOF
2470 At least one library type must be built.
2471 Specify --enable-static to build the static libraries or --enable-shared to
2472 build the shared libraries as well. To only build the shared libraries specify
2473 --disable-static in addition to --enable-shared.
2474 EOF
2475     exit 1;
2476 fi
2477
2478 disabled static && LIBNAME=""
2479
2480 die_license_disabled() {
2481     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2482 }
2483
2484 die_license_disabled gpl libx264
2485 die_license_disabled gpl libxavs
2486 die_license_disabled gpl libxvid
2487 die_license_disabled gpl postproc
2488 die_license_disabled gpl x11grab
2489
2490 die_license_disabled nonfree libfaac
2491
2492 die_license_disabled version3 libopencore_amrnb
2493 die_license_disabled version3 libopencore_amrwb
2494
2495 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2496
2497 check_deps $ARCH_EXT_LIST
2498
2499 disabled optimizations || check_cflags -fomit-frame-pointer
2500
2501 enable_pic() {
2502     enable pic
2503     add_cppflags -DPIC
2504     add_cflags   -fPIC
2505     add_asflags  -fPIC
2506 }
2507
2508 enabled pic && enable_pic
2509
2510 check_cc <<EOF || die "Symbol mangling check failed."
2511 int ff_extern;
2512 EOF
2513 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2514 extern_prefix=${sym%%ff_extern*}
2515
2516 check_cc <<EOF && enable inline_asm
2517 void foo(void) { __asm__ volatile ("" ::); }
2518 EOF
2519
2520 _restrict=
2521 for restrict_keyword in restrict __restrict__ __restrict; do
2522     check_cc <<EOF && _restrict=$restrict_keyword && break
2523 void foo(char * $restrict_keyword p);
2524 EOF
2525 done
2526
2527 check_cc <<EOF && enable attribute_packed
2528 struct { int x; } __attribute__((packed)) x;
2529 EOF
2530
2531 check_cc <<EOF && enable attribute_may_alias
2532 union { int x; } __attribute__((may_alias)) x;
2533 EOF
2534
2535 check_cc <<EOF || die "endian test failed"
2536 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2537 EOF
2538 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2539
2540 if enabled alpha; then
2541
2542     check_cflags -mieee
2543
2544 elif enabled arm; then
2545
2546     check_cflags -marm
2547     nogas=die
2548
2549     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2550         enable vfp_args
2551     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2552         case "${cross_prefix:-$cc}" in
2553             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2554             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2555 __asm__ (".eabi_attribute 28, 1");
2556 int main(void) { return 0; }
2557 EOF
2558         esac
2559         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2560     fi
2561
2562     # We have to check if pld is a nop and disable it.
2563     check_asm pld '"pld [r0]"'
2564
2565     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2566     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2567     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2568     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2569     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2570     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2571
2572     enabled_all armv6t2 shared !pic && enable_pic
2573
2574 elif enabled mips; then
2575
2576     check_asm loongson '"dmult.g $1, $2, $3"'
2577     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2578
2579 elif enabled ppc; then
2580
2581     enable local_aligned_8 local_aligned_16
2582
2583     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2584     check_asm ibm_asm   '"add 0, 0, 0"'
2585     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2586     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2587
2588     # AltiVec flags: The FSF version of GCC differs from the Apple version
2589     if enabled altivec; then
2590         nogas=warn
2591         check_cflags -maltivec -mabi=altivec &&
2592         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2593         check_cflags -faltivec
2594
2595         # check if our compiler supports Motorola AltiVec C API
2596         check_cc <<EOF || disable altivec
2597 $inc_altivec_h
2598 int main(void) {
2599     vector signed int v1, v2, v3;
2600     v1 = vec_add(v2,v3);
2601     return 0;
2602 }
2603 EOF
2604
2605         # check if our compiler supports braces for vector declarations
2606         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2607 $inc_altivec_h
2608 int main (void) { (vector int) {1}; return 0; }
2609 EOF
2610     fi
2611
2612 elif enabled sparc; then
2613
2614     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2615         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2616
2617 elif enabled x86; then
2618
2619     enable local_aligned_8 local_aligned_16
2620
2621     # check whether EBP is available on x86
2622     # As 'i' is stored on the stack, this program will crash
2623     # if the base pointer is used to access it because the
2624     # base pointer is cleared in the inline assembly code.
2625     check_exec_crash <<EOF && enable ebp_available
2626     volatile int i=0;
2627     __asm__ volatile (
2628         "xorl %%ebp, %%ebp"
2629     ::: "%ebp");
2630     return i;
2631 EOF
2632
2633     # check whether EBX is available on x86
2634     check_asm ebx_available '""::"b"(0)' &&
2635         check_asm ebx_available '"":::"%ebx"'
2636
2637     # check whether xmm clobbers are supported
2638     check_asm xmm_clobbers '"":::"%xmm0"'
2639
2640     # check whether more than 10 operands are supported
2641     check_cc <<EOF && enable ten_operands
2642 int main(void) {
2643     int x=0;
2644     __asm__ volatile(
2645         ""
2646         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2647     );
2648     return 0;
2649 }
2650 EOF
2651
2652     # check whether binutils is new enough to compile SSSE3/MMX2
2653     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2654     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2655
2656     check_asm bswap '"bswap %%eax" ::: "%eax"'
2657
2658     if ! disabled_any asm mmx yasm; then
2659         if check_cmd $yasmexe --version; then
2660             enabled x86_64 && yasm_extra="-m amd64"
2661             yasm_debug="-g dwarf2"
2662         elif check_cmd nasm -v; then
2663             yasmexe=nasm
2664             yasm_debug="-g -F dwarf"
2665             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2666         fi
2667
2668         YASMFLAGS="-f $objformat $yasm_extra"
2669         enabled pic               && append YASMFLAGS "-DPIC"
2670         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2671         case "$objformat" in
2672             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2673         esac
2674
2675         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2676             die "yasm not found, use --disable-yasm for a crippled build"
2677     fi
2678
2679     case "$cpu" in
2680         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2681             disable fast_clz
2682         ;;
2683     esac
2684
2685 fi
2686
2687 if enabled asm; then
2688     as=${gas:=$as}
2689     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2690         $nogas "GNU assembler not found, install gas-preprocessor"
2691 fi
2692
2693 if check_func dlopen; then
2694     ldl=
2695 elif check_func dlopen -ldl; then
2696     ldl=-ldl
2697 fi
2698
2699 if enabled network; then
2700     check_type "sys/types.h sys/socket.h" socklen_t
2701     check_type netdb.h "struct addrinfo"
2702     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2703     check_type netinet/in.h "struct sockaddr_in6"
2704     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2705     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2706     # Prefer arpa/inet.h over winsock2
2707     if check_header arpa/inet.h ; then
2708         check_func closesocket
2709     elif check_header winsock2.h ; then
2710         check_func_headers winsock2.h closesocket -lws2 && \
2711             network_extralibs="-lws2" || \
2712         { check_func_headers winsock2.h closesocket -lws2_32 && \
2713             network_extralibs="-lws2_32"; }
2714         check_type ws2tcpip.h socklen_t
2715         check_type ws2tcpip.h "struct addrinfo"
2716         check_type ws2tcpip.h "struct ipv6_mreq"
2717         check_type ws2tcpip.h "struct sockaddr_in6"
2718         check_type ws2tcpip.h "struct sockaddr_storage"
2719         check_struct winsock2.h "struct sockaddr" sa_len
2720     else
2721         disable network
2722     fi
2723 fi
2724
2725 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2726 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2727
2728 check_func  fcntl
2729 check_func  fork
2730 check_func  getaddrinfo $network_extralibs
2731 check_func  gethrtime
2732 check_func  getrusage
2733 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2734 check_func  inet_aton $network_extralibs
2735 check_func  isatty
2736 check_func  ${malloc_prefix}memalign            && enable memalign
2737 check_func  mkstemp
2738 check_func  mmap
2739 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2740 check_func  setrlimit
2741 check_func  strerror_r
2742 check_func  strtok_r
2743 check_func_headers io.h setmode
2744 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2745 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2746 check_func_headers windows.h GetProcessTimes
2747 check_func_headers windows.h MapViewOfFile
2748 check_func_headers windows.h VirtualAlloc
2749
2750 check_header conio.h
2751 check_header dlfcn.h
2752 check_header dxva2api.h
2753 check_header malloc.h
2754 check_header poll.h
2755 check_header sys/mman.h
2756 check_header sys/resource.h
2757 check_header sys/select.h
2758 check_header termios.h
2759 check_header vdpau/vdpau.h
2760 check_header vdpau/vdpau_x11.h
2761 check_header X11/extensions/XvMClib.h
2762
2763 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2764
2765 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2766      enabled_any $need_memalign ; then
2767     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2768 fi
2769
2770 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2771 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2772
2773 # check for some common methods of building with pthread support
2774 # do this before the optional library checks as some of them require pthreads
2775 if ! disabled pthreads && ! enabled w32threads; then
2776     enable pthreads
2777     if check_func pthread_create; then
2778         :
2779     elif check_func pthread_create -pthread; then
2780         add_cflags -pthread
2781         add_extralibs -pthread
2782     elif check_func pthread_create -pthreads; then
2783         add_cflags -pthreads
2784         add_extralibs -pthreads
2785     elif check_func pthread_create -lpthreadGC2; then
2786         add_extralibs -lpthreadGC2
2787     elif ! check_lib pthread.h pthread_create -lpthread; then
2788         disable pthreads
2789     fi
2790 fi
2791
2792 for thread in $THREADS_LIST; do
2793     if enabled $thread; then
2794         test -n "$thread_type" &&
2795             die "ERROR: Only one thread type must be selected." ||
2796             thread_type="$thread"
2797     fi
2798 done
2799
2800 check_lib math.h sin -lm
2801 disabled vaapi || check_lib va/va.h vaInitialize -lva
2802
2803 check_mathfunc exp2
2804 check_mathfunc exp2f
2805 check_mathfunc llrint
2806 check_mathfunc llrintf
2807 check_mathfunc log2
2808 check_mathfunc log2f
2809 check_mathfunc lrint
2810 check_mathfunc lrintf
2811 check_mathfunc round
2812 check_mathfunc roundf
2813 check_mathfunc truncf
2814
2815 # these are off by default, so fail if requested and not available
2816 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2817 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2818 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2819                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2820                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2821 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2822 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2823 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2824 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2825 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2826 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2827 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2828                         die "ERROR: libopencv not found"; }
2829 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2830 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2831                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2832 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2833                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2834 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2835 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2836 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2837 enabled libvpx     && {
2838     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2839                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2840     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2841                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2842 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2843                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2844                         die "ERROR: libx264 version must be >= 0.99."; }
2845 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2846 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2847 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2848
2849 # libdc1394 check
2850 if enabled libdc1394; then
2851     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2852         enable libdc1394_2; } ||
2853     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2854         enable libdc1394_1; } ||
2855     die "ERROR: No version of libdc1394 found "
2856 fi
2857
2858 SDL_CONFIG="${cross_prefix}sdl-config"
2859 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2860     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2861     sdl_libs=$("${SDL_CONFIG}" --libs)
2862     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2863     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2864     enable sdl &&
2865     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2866 fi
2867
2868 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2869
2870 check_header linux/videodev.h
2871 check_header linux/videodev2.h
2872 check_header sys/videoio.h
2873
2874 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2875 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2876 # w32api 3.12 had it defined wrong
2877 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2878
2879 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2880 { check_header dev/bktr/ioctl_meteor.h &&
2881   check_header dev/bktr/ioctl_bt848.h; } ||
2882 { check_header machine/ioctl_meteor.h &&
2883   check_header machine/ioctl_bt848.h; } ||
2884 { check_header dev/video/meteor/ioctl_meteor.h &&
2885   check_header dev/video/bktr/ioctl_bt848.h; } ||
2886 check_header dev/ic/bt8xx.h
2887
2888 check_header sys/soundcard.h
2889 check_header soundcard.h
2890
2891 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2892
2893 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2894
2895 enabled x11grab                         &&
2896 check_header X11/Xlib.h                 &&
2897 check_header X11/extensions/XShm.h      &&
2898 check_header X11/extensions/Xfixes.h    &&
2899 check_func XOpenDisplay -lX11           &&
2900 check_func XShmCreateImage -lX11 -lXext &&
2901 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2902
2903 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2904 check_cpp_condition \
2905     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2906     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2907       disable vdpau; }
2908 fi
2909
2910 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2911
2912 # add some useful compiler flags if supported
2913 check_cflags -Wdeclaration-after-statement
2914 check_cflags -Wall
2915 check_cflags -Wno-parentheses
2916 check_cflags -Wno-switch
2917 check_cflags -Wdisabled-optimization
2918 check_cflags -Wpointer-arith
2919 check_cflags -Wredundant-decls
2920 check_cflags -Wno-pointer-sign
2921 check_cflags -Wcast-qual
2922 check_cflags -Wwrite-strings
2923 check_cflags -Wtype-limits
2924 check_cflags -Wundef
2925 check_cflags -Wmissing-prototypes
2926 enabled extra_warnings && check_cflags -Winline
2927
2928 # add some linker flags
2929 check_ldflags -Wl,--warn-common
2930 check_ldflags -Wl,--as-needed
2931 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'
2932 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2933
2934 echo "X{};" > $TMPV
2935 if test_ldflags -Wl,--version-script,$TMPV; then
2936     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2937     check_cc <<EOF && enable symver_asm_label
2938 void ff_foo(void) __asm__ ("av_foo@VERSION");
2939 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2940 EOF
2941     check_cc <<EOF && enable symver_gnu_asm
2942 __asm__(".symver ff_foo,av_foo@VERSION");
2943 void ff_foo(void) {}
2944 EOF
2945 fi
2946
2947 if enabled small; then
2948     add_cflags $size_cflags
2949     optimizations="small"
2950 elif enabled optimizations; then
2951     add_cflags $speed_cflags
2952 else
2953     add_cflags $noopt_cflags
2954 fi
2955 check_cflags -fno-math-errno
2956 check_cflags -fno-signed-zeros
2957
2958 if enabled icc; then
2959     # Just warnings, no remarks
2960     check_cflags -w1
2961     # -wd: Disable following warnings
2962     # 144, 167, 556: -Wno-pointer-sign
2963     # 10006: ignoring unknown option -fno-signed-zeros
2964     # 10148: ignoring unknown option -Wno-parentheses
2965     # 10156: ignoring option '-W'; no argument required
2966     check_cflags -wd144,167,556,10006,10148,10156
2967     # 11030: Warning unknown option --as-needed
2968     # 10156: ignoring option '-export'; no argument required
2969     check_ldflags -wd10156,11030
2970     # Allow to compile with optimizations
2971     check_ldflags -march=$cpu
2972     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2973     enable ebp_available
2974     if enabled x86_32; then
2975         test ${icc_version%%.*} -ge 11 && \
2976             check_cflags -falign-stack=maintain-16-byte || \
2977             disable aligned_stack
2978     fi
2979 elif enabled ccc; then
2980     # disable some annoying warnings
2981     add_cflags -msg_disable cvtu32to64
2982     add_cflags -msg_disable embedcomment
2983     add_cflags -msg_disable needconstext
2984     add_cflags -msg_disable nomainieee
2985     add_cflags -msg_disable ptrmismatch1
2986     add_cflags -msg_disable unreachcode
2987 elif enabled gcc; then
2988     check_cflags -fno-tree-vectorize
2989     check_cflags -Werror=implicit-function-declaration
2990     check_cflags -Werror=missing-prototypes
2991 elif enabled llvm_gcc; then
2992     check_cflags -mllvm -stack-alignment=16
2993 elif enabled clang; then
2994     check_cflags -mllvm -stack-alignment=16
2995     check_cflags -Qunused-arguments
2996 elif enabled armcc; then
2997     # 2523: use of inline assembler is deprecated
2998     add_cflags -W${armcc_opt},--diag_suppress=2523
2999     add_cflags -W${armcc_opt},--diag_suppress=1207
3000     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3001     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3002 elif enabled tms470; then
3003     add_cflags -pds=824 -pds=837
3004 elif enabled pathscale; then
3005     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3006 fi
3007
3008 enabled_any $THREADS_LIST      && enable threads
3009
3010 check_deps $CONFIG_LIST       \
3011            $CONFIG_EXTRA      \
3012            $HAVE_LIST         \
3013            $DECODER_LIST      \
3014            $ENCODER_LIST      \
3015            $HWACCEL_LIST      \
3016            $PARSER_LIST       \
3017            $BSF_LIST          \
3018            $DEMUXER_LIST      \
3019            $MUXER_LIST        \
3020            $FILTER_LIST       \
3021            $INDEV_LIST        \
3022            $OUTDEV_LIST       \
3023            $PROTOCOL_LIST     \
3024            $ACODEC_TESTS      \
3025            $VCODEC_TESTS      \
3026            $LAVF_TESTS        \
3027            $LAVFI_TESTS       \
3028            $SEEK_TESTS        \
3029
3030 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3031
3032 echo "install prefix            $prefix"
3033 echo "source path               $source_path"
3034 echo "C compiler                $cc"
3035 echo "ARCH                      $arch ($cpu)"
3036 if test "$build_suffix" != ""; then
3037     echo "build suffix              $build_suffix"
3038 fi
3039 if test "$extra_version" != ""; then
3040     echo "version string suffix     $extra_version"
3041 fi
3042 echo "big-endian                ${bigendian-no}"
3043 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3044 if enabled x86; then
3045     echo "yasm                      ${yasm-no}"
3046     echo "MMX enabled               ${mmx-no}"
3047     echo "MMX2 enabled              ${mmx2-no}"
3048     echo "3DNow! enabled            ${amd3dnow-no}"
3049     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3050     echo "SSE enabled               ${sse-no}"
3051     echo "SSSE3 enabled             ${ssse3-no}"
3052     echo "CMOV enabled              ${cmov-no}"
3053     echo "CMOV is fast              ${fast_cmov-no}"
3054     echo "EBX available             ${ebx_available-no}"
3055     echo "EBP available             ${ebp_available-no}"
3056     echo "10 operands supported     ${ten_operands-no}"
3057 fi
3058 if enabled arm; then
3059     echo "ARMv5TE enabled           ${armv5te-no}"
3060     echo "ARMv6 enabled             ${armv6-no}"
3061     echo "ARMv6T2 enabled           ${armv6t2-no}"
3062     echo "ARM VFP enabled           ${armvfp-no}"
3063     echo "IWMMXT enabled            ${iwmmxt-no}"
3064     echo "NEON enabled              ${neon-no}"
3065 fi
3066 if enabled mips; then
3067     echo "MMI enabled               ${mmi-no}"
3068 fi
3069 if enabled ppc; then
3070     echo "AltiVec enabled           ${altivec-no}"
3071     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3072     echo "dcbzl available           ${dcbzl-no}"
3073 fi
3074 if enabled sparc; then
3075     echo "VIS enabled               ${vis-no}"
3076 fi
3077 echo "debug symbols             ${debug-no}"
3078 echo "strip symbols             ${stripping-no}"
3079 echo "optimizations             ${optimizations-no}"
3080 echo "static                    ${static-no}"
3081 echo "shared                    ${shared-no}"
3082 echo "postprocessing support    ${postproc-no}"
3083 echo "new filter support        ${avfilter-no}"
3084 echo "network support           ${network-no}"
3085 echo "threading support         ${thread_type-no}"
3086 echo "SDL support               ${sdl-no}"
3087 echo "Sun medialib support      ${mlib-no}"
3088 echo "AVISynth enabled          ${avisynth-no}"
3089 echo "frei0r enabled            ${frei0r-no}"
3090 echo "libdc1394 support         ${libdc1394-no}"
3091 echo "libdirac enabled          ${libdirac-no}"
3092 echo "libfaac enabled           ${libfaac-no}"
3093 echo "libgsm enabled            ${libgsm-no}"
3094 echo "libmp3lame enabled        ${libmp3lame-no}"
3095 echo "libnut enabled            ${libnut-no}"
3096 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3097 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3098 echo "libopencv support         ${libopencv-no}"
3099 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3100 echo "librtmp enabled           ${librtmp-no}"
3101 echo "libschroedinger enabled   ${libschroedinger-no}"
3102 echo "libspeex enabled          ${libspeex-no}"
3103 echo "libtheora enabled         ${libtheora-no}"
3104 echo "libvorbis enabled         ${libvorbis-no}"
3105 echo "libvpx enabled            ${libvpx-no}"
3106 echo "libx264 enabled           ${libx264-no}"
3107 echo "libxavs enabled           ${libxavs-no}"
3108 echo "libxvid enabled           ${libxvid-no}"
3109 echo "zlib enabled              ${zlib-no}"
3110 echo "bzlib enabled             ${bzlib-no}"
3111 echo
3112
3113 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3114     echo "Enabled ${type}s:"
3115     eval list=\$$(toupper $type)_LIST
3116     print_enabled '_*' $list | sort | pr -3 -t
3117     echo
3118 done
3119
3120 license="LGPL version 2.1 or later"
3121 if enabled nonfree; then
3122     license="nonfree and unredistributable"
3123 elif enabled gplv3; then
3124     license="GPL version 3 or later"
3125 elif enabled lgplv3; then
3126     license="LGPL version 3 or later"
3127 elif enabled gpl; then
3128     license="GPL version 2 or later"
3129 fi
3130
3131 echo "License: $license"
3132
3133 echo "Creating config.mak and config.h..."
3134
3135 # build tree in object directory if source path is different from current one
3136 if enabled source_path_used; then
3137     DIRS="
3138         doc
3139         libavcodec
3140         libavcodec/$arch
3141         libavcore
3142         libavdevice
3143         libavfilter
3144         libavfilter/$arch
3145         libavfilter/libmpcodecs
3146         libavfilter/libmpcodecs/libvo
3147         libavformat
3148         libavutil
3149         libavutil/$arch
3150         libpostproc
3151         libswscale
3152         libswscale/$arch
3153         tests
3154         tools
3155     "
3156     FILES="
3157         Makefile
3158         common.mak
3159         subdir.mak
3160         doc/texi2pod.pl
3161         libavcodec/Makefile
3162         libavcodec/${arch}/Makefile
3163         libavcore/Makefile
3164         libavdevice/Makefile
3165         libavfilter/Makefile
3166         libavfilter/${arch}/Makefile
3167         libavformat/Makefile
3168         libavutil/Makefile
3169         libpostproc/Makefile
3170         libswscale/Makefile
3171     "
3172     map 'mkdir -p $v' $DIRS;
3173     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3174 fi
3175
3176 enabled stripping || strip="echo skipping strip"
3177
3178 config_files="$TMPH config.mak"
3179
3180 cat > config.mak <<EOF
3181 # Automatically generated by configure - do not modify!
3182 ifndef FFMPEG_CONFIG_MAK
3183 FFMPEG_CONFIG_MAK=1
3184 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3185 prefix=$prefix
3186 LIBDIR=\$(DESTDIR)$libdir
3187 SHLIBDIR=\$(DESTDIR)$shlibdir
3188 INCDIR=\$(DESTDIR)$incdir
3189 BINDIR=\$(DESTDIR)$bindir
3190 DATADIR=\$(DESTDIR)$datadir
3191 MANDIR=\$(DESTDIR)$mandir
3192 SRC_PATH="$source_path"
3193 SRC_PATH_BARE=$source_path
3194 BUILD_ROOT="$PWD"
3195 CC_IDENT=$cc_ident
3196 ARCH=$arch
3197 CC=$cc
3198 AS=$as
3199 LD=$ld
3200 DEPCC=$dep_cc
3201 YASM=$yasmexe
3202 YASMDEP=$yasmexe
3203 AR=$ar
3204 RANLIB=$ranlib
3205 CP=cp -p
3206 LN_S=$ln_s
3207 STRIP=$strip
3208 CPPFLAGS=$CPPFLAGS
3209 CFLAGS=$CFLAGS
3210 ASFLAGS=$ASFLAGS
3211 CC_O=$CC_O
3212 LDFLAGS=$LDFLAGS
3213 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3214 SHFLAGS=$SHFLAGS
3215 YASMFLAGS=$YASMFLAGS
3216 BUILDSUF=$build_suffix
3217 FULLNAME=$FULLNAME
3218 LIBPREF=$LIBPREF
3219 LIBSUF=$LIBSUF
3220 LIBNAME=$LIBNAME
3221 SLIBPREF=$SLIBPREF
3222 SLIBSUF=$SLIBSUF
3223 EXESUF=$EXESUF
3224 EXTRA_VERSION=$extra_version
3225 DEPFLAGS=$DEPFLAGS
3226 CCDEP=$CCDEP
3227 ASDEP=$ASDEP
3228 CC_DEPFLAGS=$CC_DEPFLAGS
3229 AS_DEPFLAGS=$AS_DEPFLAGS
3230 HOSTCC=$host_cc
3231 HOSTCFLAGS=$host_cflags
3232 HOSTEXESUF=$HOSTEXESUF
3233 HOSTLDFLAGS=$host_ldflags
3234 HOSTLIBS=$host_libs
3235 TARGET_EXEC=$target_exec
3236 TARGET_PATH=$target_path
3237 SDL_LIBS=$sdl_libs
3238 SDL_CFLAGS=$sdl_cflags
3239 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3240 EXTRALIBS=$extralibs
3241 INSTALL=install
3242 LIBTARGET=${LIBTARGET}
3243 SLIBNAME=${SLIBNAME}
3244 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3245 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3246 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3247 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3248 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3249 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3250 SAMPLES=$samples
3251 EOF
3252
3253 get_version(){
3254     name=$1
3255     file=$source_path/$2
3256     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3257     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3258     lcname=$(tolower $name)
3259     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3260     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3261 }
3262
3263 get_version LIBSWSCALE  libswscale/swscale.h
3264 get_version LIBPOSTPROC libpostproc/postprocess.h
3265 get_version LIBAVCODEC  libavcodec/avcodec.h
3266 get_version LIBAVCORE   libavcore/avcore.h
3267 get_version LIBAVDEVICE libavdevice/avdevice.h
3268 get_version LIBAVFORMAT libavformat/version.h
3269 get_version LIBAVUTIL   libavutil/avutil.h
3270 get_version LIBAVFILTER libavfilter/avfilter.h
3271
3272 cat > $TMPH <<EOF
3273 /* Automatically generated by configure - do not modify! */
3274 #ifndef FFMPEG_CONFIG_H
3275 #define FFMPEG_CONFIG_H
3276 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3277 #define FFMPEG_LICENSE "$(c_escape $license)"
3278 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3279 #define CC_TYPE "$cc_type"
3280 #define CC_VERSION $cc_version
3281 #define restrict $_restrict
3282 #define EXTERN_PREFIX "${extern_prefix}"
3283 #define EXTERN_ASM ${extern_prefix}
3284 #define SLIBSUF "$SLIBSUF"
3285 EOF
3286
3287 test -n "$malloc_prefix" &&
3288     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3289
3290 if enabled small || disabled optimizations; then
3291     echo "#undef  av_always_inline"  >> $TMPH
3292     if enabled small; then
3293         echo "#define av_always_inline inline"  >> $TMPH
3294     else
3295         echo "#define av_always_inline av_unused"  >> $TMPH
3296     fi
3297 fi
3298
3299 if enabled yasm; then
3300     append config_files $TMPASM
3301     printf '' >$TMPASM
3302 fi
3303
3304 print_config ARCH_   "$config_files" $ARCH_LIST
3305 print_config HAVE_   "$config_files" $HAVE_LIST
3306 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3307                                      $CONFIG_EXTRA      \
3308                                      $DECODER_LIST      \
3309                                      $ENCODER_LIST      \
3310                                      $HWACCEL_LIST      \
3311                                      $PARSER_LIST       \
3312                                      $BSF_LIST          \
3313                                      $DEMUXER_LIST      \
3314                                      $MUXER_LIST        \
3315                                      $FILTER_LIST       \
3316                                      $PROTOCOL_LIST     \
3317                                      $INDEV_LIST        \
3318                                      $OUTDEV_LIST       \
3319
3320 cat >>config.mak <<EOF
3321 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3322 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3323 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3324 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3325 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3326 EOF
3327
3328 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3329 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3330
3331 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3332 cp_if_changed $TMPH config.h
3333 touch .config
3334
3335 enabled yasm && cp_if_changed $TMPASM config.asm
3336
3337 cat > $TMPH <<EOF
3338 /* Generated by ffconf */
3339 #ifndef AVUTIL_AVCONFIG_H
3340 #define AVUTIL_AVCONFIG_H
3341 EOF
3342
3343 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3344
3345 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3346
3347 cp_if_changed $TMPH libavutil/avconfig.h
3348
3349 test -n "$WARNINGS" && printf "\n$WARNINGS"
3350
3351 # build pkg-config files
3352
3353 pkgconfig_generate(){
3354 name=$1
3355 shortname=${name#lib}${build_suffix}
3356 comment=$2
3357 version=$3
3358 libs=$4
3359 requires=$5
3360 enabled ${name#lib} || return 0
3361 cat <<EOF > $name/$name.pc
3362 prefix=$prefix
3363 exec_prefix=\${prefix}
3364 libdir=$libdir
3365 includedir=$incdir
3366
3367 Name: $name
3368 Description: $comment
3369 Version: $version
3370 Requires: $(enabled shared || echo $requires)
3371 Requires.private: $(enabled shared && echo $requires)
3372 Conflicts:
3373 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3374 Libs.private: $(enabled shared && echo $libs)
3375 Cflags: -I\${includedir}
3376 EOF
3377 cat <<EOF > $name/$name-uninstalled.pc
3378 prefix=
3379 exec_prefix=
3380 libdir=\${pcfiledir}
3381 includedir=${source_path}
3382
3383 Name: $name
3384 Description: $comment
3385 Version: $version
3386 Requires: $requires
3387 Conflicts:
3388 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3389 Cflags: -I\${includedir}
3390 EOF
3391 }
3392
3393 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3394 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3395 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3396 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3397 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3398 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3399 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3400 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"