cosmetics: vertical alignment and line wrap
[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 map(){
325     m=$1
326     shift
327     for v; do eval $m; done
328 }
329
330 set_all(){
331     value=$1
332     shift
333     for var in $*; do
334         eval $var=$value
335     done
336 }
337
338 set_weak(){
339     value=$1
340     shift
341     for var; do
342         eval : \${$var:=$value}
343     done
344 }
345
346 pushvar(){
347     for var in $*; do
348         eval level=\${${var}_level:=0}
349         eval ${var}_${level}="\$$var"
350         eval ${var}_level=$(($level+1))
351     done
352 }
353
354 popvar(){
355     for var in $*; do
356         eval level=\${${var}_level:-0}
357         test $level = 0 && continue
358         eval level=$(($level-1))
359         eval $var="\${${var}_${level}}"
360         eval ${var}_level=$level
361         eval unset ${var}_${level}
362     done
363 }
364
365 enable(){
366     set_all yes $*
367 }
368
369 disable(){
370     set_all no $*
371 }
372
373 enable_weak(){
374     set_weak yes $*
375 }
376
377 disable_weak(){
378     set_weak no $*
379 }
380
381 enable_safe(){
382     for var; do
383         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
384     done
385 }
386
387 disable_safe(){
388     for var; do
389         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
390     done
391 }
392
393 do_enable_deep(){
394     for var; do
395         enabled $var && continue
396         eval sel="\$${var}_select"
397         eval sgs="\$${var}_suggest"
398         pushvar var sgs
399         enable_deep $sel
400         popvar sgs
401         enable_deep_weak $sgs
402         popvar var
403     done
404 }
405
406 enable_deep(){
407     do_enable_deep $*
408     enable $*
409 }
410
411 enable_deep_weak(){
412     do_enable_deep $*
413     enable_weak $*
414 }
415
416 enabled(){
417     test "${1#!}" = "$1" && op== || op=!=
418     eval test "x\$${1#!}" $op "xyes"
419 }
420
421 disabled(){
422     test "${1#!}" = "$1" && op== || op=!=
423     eval test "x\$${1#!}" $op "xno"
424 }
425
426 enabled_all(){
427     for opt; do
428         enabled $opt || return 1
429     done
430 }
431
432 disabled_all(){
433     for opt; do
434         disabled $opt || return 1
435     done
436 }
437
438 enabled_any(){
439     for opt; do
440         enabled $opt && return 0
441     done
442 }
443
444 disabled_any(){
445     for opt; do
446         disabled $opt && return 0
447     done
448     return 1
449 }
450
451 set_default(){
452     for opt; do
453         eval : \${$opt:=\$${opt}_default}
454     done
455 }
456
457 is_in(){
458     value=$1
459     shift
460     for var in $*; do
461         [ $var = $value ] && return 0
462     done
463     return 1
464 }
465
466 check_deps(){
467     for cfg; do
468         cfg="${cfg#!}"
469         enabled ${cfg}_checking && die "Circular dependency for $cfg."
470         disabled ${cfg}_checking && continue
471         enable ${cfg}_checking
472
473         eval dep_all="\$${cfg}_deps"
474         eval dep_any="\$${cfg}_deps_any"
475         eval dep_sel="\$${cfg}_select"
476         eval dep_sgs="\$${cfg}_suggest"
477         eval dep_ifa="\$${cfg}_if"
478         eval dep_ifn="\$${cfg}_if_any"
479
480         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
481         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
482         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
483
484         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
485         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
486         enabled_all  $dep_all || disable $cfg
487         enabled_any  $dep_any || disable $cfg
488         disabled_any $dep_sel && disable $cfg
489
490         if enabled $cfg; then
491             eval dep_extralibs="\$${cfg}_extralibs"
492             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
493             enable_deep $dep_sel
494             enable_deep_weak $dep_sgs
495         fi
496
497         disable ${cfg}_checking
498     done
499 }
500
501 print_config_h(){
502     enabled $1 && v=1 || v=0
503     echo "#define $2 $v"
504 }
505
506 print_config_mak(){
507     enabled $1 && v= || v=!
508     echo "$v$2=yes"
509 }
510
511 print_config_asm(){
512     enabled $1 && echo "%define $2"
513 }
514
515 print_config(){
516     pfx=$1
517     files=$2
518     shift 2
519     for cfg; do
520         ucname="$(toupper $cfg)"
521         for f in $files; do
522             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
523         done
524     done
525 }
526
527 print_enabled(){
528     test "$1" = -n && end=" " && shift || end="\n"
529     suf=$1
530     shift
531     for v; do
532         enabled $v && printf "%s$end" ${v%$suf};
533     done
534 }
535
536 append(){
537     var=$1
538     shift
539     eval "$var=\"\$$var $*\""
540 }
541
542 prepend(){
543     var=$1
544     shift
545     eval "$var=\"$* \$$var\""
546 }
547
548 add_cppflags(){
549     append CPPFLAGS $($filter_cppflags "$@")
550 }
551
552 add_cflags(){
553     append CFLAGS $($filter_cflags "$@")
554 }
555
556 add_asflags(){
557     append ASFLAGS $($filter_asflags "$@")
558 }
559
560 add_ldflags(){
561     append LDFLAGS "$@"
562 }
563
564 add_extralibs(){
565     prepend extralibs "$@"
566 }
567
568 check_cmd(){
569     log "$@"
570     "$@" >> $logfile 2>&1
571 }
572
573 check_cc(){
574     log check_cc "$@"
575     cat > $TMPC
576     log_file $TMPC
577     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
578 }
579
580 check_cpp(){
581     log check_cpp "$@"
582     cat > $TMPC
583     log_file $TMPC
584     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
585 }
586
587 check_as(){
588     log check_as "$@"
589     cat > $TMPC
590     log_file $TMPC
591     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
592 }
593
594 check_asm(){
595     log check_asm "$@"
596     name="$1"
597     code="$2"
598     shift 2
599     disable $name
600     check_as "$@" <<EOF && enable $name
601 void foo(void){ __asm__ volatile($code); }
602 EOF
603 }
604
605 check_yasm(){
606     log check_yasm "$@"
607     echo "$1" > $TMPS
608     log_file $TMPS
609     shift 1
610     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
611 }
612
613 check_ld(){
614     log check_ld "$@"
615     flags=''
616     libs=''
617     for f; do
618         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
619     done
620     check_cc $($filter_cflags $flags) || return
621     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
622 }
623
624 check_cppflags(){
625     log check_cppflags "$@"
626     set -- $($filter_cppflags "$@")
627     check_cc "$@" <<EOF && append CPPFLAGS "$@"
628 int x;
629 EOF
630 }
631
632 check_cflags(){
633     log check_cflags "$@"
634     set -- $($filter_cflags "$@")
635     check_cc "$@" <<EOF && append CFLAGS "$@"
636 int x;
637 EOF
638 }
639
640 test_ldflags(){
641     log test_ldflags "$@"
642     check_ld "$@" <<EOF
643 int main(void){ return 0; }
644 EOF
645 }
646
647 check_ldflags(){
648     log check_ldflags "$@"
649     test_ldflags "$@" && add_ldflags "$@"
650 }
651
652 check_header(){
653     log check_header "$@"
654     header=$1
655     shift
656     disable_safe $header
657     check_cpp "$@" <<EOF && enable_safe $header
658 #include <$header>
659 int x;
660 EOF
661 }
662
663 check_func(){
664     log check_func "$@"
665     func=$1
666     shift
667     disable $func
668     check_ld "$@" <<EOF && enable $func
669 extern int $func();
670 int main(void){ $func(); }
671 EOF
672 }
673
674 check_mathfunc(){
675     log check_mathfunc "$@"
676     func=$1
677     shift
678     disable $func
679     check_ld "$@" <<EOF && enable $func
680 #include <math.h>
681 float foo(float f) { return $func(f); }
682 int main(void){ return 0; }
683 EOF
684 }
685
686 check_func_headers(){
687     log check_func_headers "$@"
688     headers=$1
689     func=$2
690     shift 2
691     disable $func
692     incs=""
693     for hdr in $headers; do
694         incs="$incs
695 #include <$hdr>"
696     done
697     check_ld "$@" <<EOF && enable $func && enable_safe $headers
698 $incs
699 int main(int argc, char **argv){
700     return (long) $func;
701 }
702 EOF
703 }
704
705 check_cpp_condition(){
706     log check_cpp_condition "$@"
707     header=$1
708     condition=$2
709     shift 2
710     check_cpp $($filter_cppflags "$@") <<EOF
711 #include <$header>
712 #if !($condition)
713 #error "unsatisfied condition: $condition"
714 #endif
715 EOF
716 }
717
718 check_lib(){
719     log check_lib "$@"
720     header="$1"
721     func="$2"
722     shift 2
723     check_header $header && check_func $func "$@" && add_extralibs "$@"
724 }
725
726 check_lib2(){
727     log check_lib2 "$@"
728     headers="$1"
729     func="$2"
730     shift 2
731     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
732 }
733
734 check_exec(){
735     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
736 }
737
738 check_exec_crash(){
739     code=$(cat)
740
741     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
742     # are safe but may not be available everywhere.  Thus we use
743     # raise(SIGTERM) instead.  The check is run in a subshell so we
744     # can redirect the "Terminated" message from the shell.  SIGBUS
745     # is not defined by standard C so it is used conditionally.
746
747     (check_exec "$@") >> $logfile 2>&1 <<EOF
748 #include <signal.h>
749 static void sighandler(int sig){
750     raise(SIGTERM);
751 }
752 int main(void){
753     signal(SIGILL, sighandler);
754     signal(SIGFPE, sighandler);
755     signal(SIGSEGV, sighandler);
756 #ifdef SIGBUS
757     signal(SIGBUS, sighandler);
758 #endif
759     { $code }
760 }
761 EOF
762 }
763
764 check_type(){
765     log check_type "$@"
766     headers=$1
767     type=$2
768     shift 2
769     disable_safe "$type"
770     incs=""
771     for hdr in $headers; do
772         incs="$incs
773 #include <$hdr>"
774     done
775     check_cc "$@" <<EOF && enable_safe "$type"
776 $incs
777 $type v;
778 EOF
779 }
780
781 check_struct(){
782     log check_type "$@"
783     headers=$1
784     struct=$2
785     member=$3
786     shift 3
787     disable_safe "${struct}_${member}"
788     incs=""
789     for hdr in $headers; do
790         incs="$incs
791 #include <$hdr>"
792     done
793     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
794 $incs
795 const void *p = &(($struct *)0)->$member;
796 EOF
797 }
798
799 require(){
800     name="$1"
801     header="$2"
802     func="$3"
803     shift 3
804     check_lib $header $func "$@" || die "ERROR: $name not found"
805 }
806
807 require2(){
808     name="$1"
809     headers="$2"
810     func="$3"
811     shift 3
812     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
813 }
814
815 check_host_cc(){
816     log check_host_cc "$@"
817     cat > $TMPC
818     log_file $TMPC
819     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
820 }
821
822 check_host_cflags(){
823     log check_host_cflags "$@"
824     check_host_cc "$@" <<EOF && append host_cflags "$@"
825 int x;
826 EOF
827 }
828
829 apply(){
830     file=$1
831     shift
832     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
833 }
834
835 cp_if_changed(){
836     cmp -s "$1" "$2" &&
837         echo "$2 is unchanged" ||
838         cp -f "$1" "$2"
839 }
840
841 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
842 # system-dependent things.
843
844 COMPONENT_LIST="
845     bsfs
846     decoders
847     demuxers
848     encoders
849     filters
850     hwaccels
851     indevs
852     muxers
853     outdevs
854     parsers
855     protocols
856 "
857
858 CONFIG_LIST="
859     $COMPONENT_LIST
860     aandct
861     avcodec
862     avcore
863     avdevice
864     avfilter
865     avformat
866     avisynth
867     bzlib
868     dct
869     doc
870     dwt
871     dxva2
872     fastdiv
873     ffmpeg
874     ffplay
875     ffprobe
876     ffserver
877     fft
878     frei0r
879     golomb
880     gpl
881     gray
882     h264dsp
883     h264pred
884     hardcoded_tables
885     huffman
886     libdc1394
887     libdirac
888     libfaac
889     libgsm
890     libmp3lame
891     libnut
892     libopencore_amrnb
893     libopencore_amrwb
894     libopencv
895     libopenjpeg
896     librtmp
897     libschroedinger
898     libspeex
899     libtheora
900     libvorbis
901     libvpx
902     libx264
903     libxavs
904     libxvid
905     lpc
906     lsp
907     mdct
908     memalign_hack
909     mlib
910     mpegaudio_hp
911     network
912     nonfree
913     pic
914     postproc
915     rdft
916     rtpdec
917     runtime_cpudetect
918     shared
919     small
920     sram
921     static
922     swscale
923     swscale_alpha
924     vaapi
925     vdpau
926     version3
927     x11grab
928     zlib
929 "
930
931 THREADS_LIST='
932     pthreads
933     w32threads
934 '
935
936 ARCH_LIST='
937     alpha
938     arm
939     avr32
940     avr32_ap
941     avr32_uc
942     bfin
943     ia64
944     m68k
945     mips
946     mips64
947     parisc
948     ppc
949     ppc64
950     s390
951     sh4
952     sparc
953     sparc64
954     tomi
955     x86
956     x86_32
957     x86_64
958 '
959
960 ARCH_EXT_LIST='
961     altivec
962     amd3dnow
963     amd3dnowext
964     armv5te
965     armv6
966     armv6t2
967     armvfp
968     iwmmxt
969     mmi
970     mmx
971     mmx2
972     neon
973     ppc4xx
974     sse
975     ssse3
976     vis
977 '
978
979 HAVE_LIST_PUB='
980     bigendian
981     fast_unaligned
982 '
983
984 HAVE_LIST="
985     $ARCH_EXT_LIST
986     $HAVE_LIST_PUB
987     $THREADS_LIST
988     aligned_stack
989     alsa_asoundlib_h
990     altivec_h
991     arpa_inet_h
992     attribute_may_alias
993     attribute_packed
994     bswap
995     closesocket
996     cmov
997     conio_h
998     dcbzl
999     dev_bktr_ioctl_bt848_h
1000     dev_bktr_ioctl_meteor_h
1001     dev_ic_bt8xx_h
1002     dev_video_meteor_ioctl_meteor_h
1003     dev_video_bktr_ioctl_bt848_h
1004     dlfcn_h
1005     dlopen
1006     dos_paths
1007     ebp_available
1008     ebx_available
1009     exp2
1010     exp2f
1011     fast_64bit
1012     fast_clz
1013     fast_cmov
1014     fcntl
1015     fork
1016     getaddrinfo
1017     gethrtime
1018     GetProcessMemoryInfo
1019     GetProcessTimes
1020     getrusage
1021     gnu_as
1022     struct_rusage_ru_maxrss
1023     ibm_asm
1024     inet_aton
1025     inline_asm
1026     isatty
1027     ldbrx
1028     libdc1394_1
1029     libdc1394_2
1030     llrint
1031     llrintf
1032     local_aligned_16
1033     local_aligned_8
1034     log2
1035     log2f
1036     loongson
1037     lrint
1038     lrintf
1039     lzo1x_999_compress
1040     machine_ioctl_bt848_h
1041     machine_ioctl_meteor_h
1042     malloc_h
1043     MapViewOfFile
1044     memalign
1045     mkstemp
1046     mmap
1047     pld
1048     posix_memalign
1049     round
1050     roundf
1051     sdl
1052     sdl_video_size
1053     setmode
1054     socklen_t
1055     soundcard_h
1056     poll_h
1057     setrlimit
1058     strerror_r
1059     strtok_r
1060     struct_addrinfo
1061     struct_ipv6_mreq
1062     struct_sockaddr_in6
1063     struct_sockaddr_sa_len
1064     struct_sockaddr_storage
1065     symver
1066     symver_gnu_asm
1067     symver_asm_label
1068     sys_mman_h
1069     sys_resource_h
1070     sys_select_h
1071     sys_soundcard_h
1072     sys_videoio_h
1073     ten_operands
1074     termios_h
1075     threads
1076     truncf
1077     vfp_args
1078     VirtualAlloc
1079     winsock2_h
1080     xform_asm
1081     xmm_clobbers
1082     yasm
1083 "
1084
1085 # options emitted with CONFIG_ prefix but not available on command line
1086 CONFIG_EXTRA="
1087     avutil
1088     gplv3
1089     lgplv3
1090 "
1091
1092 CMDLINE_SELECT="
1093     $ARCH_EXT_LIST
1094     $CONFIG_LIST
1095     $THREADS_LIST
1096     asm
1097     cross_compile
1098     debug
1099     extra_warnings
1100     logging
1101     optimizations
1102     stripping
1103     symver
1104     yasm
1105 "
1106
1107 PATHS_LIST='
1108     bindir
1109     datadir
1110     incdir
1111     libdir
1112     mandir
1113     prefix
1114     shlibdir
1115 '
1116
1117 CMDLINE_SET="
1118     $PATHS_LIST
1119     ar
1120     arch
1121     as
1122     build_suffix
1123     cc
1124     cpu
1125     cross_prefix
1126     dep_cc
1127     extra_version
1128     host_cc
1129     host_cflags
1130     host_ldflags
1131     host_libs
1132     host_os
1133     ld
1134     logfile
1135     malloc_prefix
1136     nm
1137     samples
1138     source_path
1139     strip
1140     sysinclude
1141     sysroot
1142     target_exec
1143     target_os
1144     target_path
1145 "
1146
1147 CMDLINE_APPEND="
1148     extra_cflags
1149 "
1150
1151 # code dependency declarations
1152
1153 # architecture extensions
1154
1155 armv5te_deps="arm"
1156 armv6_deps="arm"
1157 armv6t2_deps="arm"
1158 armvfp_deps="arm"
1159 iwmmxt_deps="arm"
1160 neon_deps="arm"
1161
1162 mmi_deps="mips"
1163
1164 altivec_deps="ppc"
1165 ppc4xx_deps="ppc"
1166
1167 vis_deps="sparc"
1168
1169 x86_64_suggest="cmov fast_cmov"
1170 amd3dnow_deps="mmx"
1171 amd3dnowext_deps="amd3dnow"
1172 mmx_deps="x86"
1173 mmx2_deps="mmx"
1174 sse_deps="mmx"
1175 ssse3_deps="sse"
1176
1177 aligned_stack_if_any="ppc x86"
1178 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1179 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1180 fast_unaligned_if_any="armv6 ppc x86"
1181
1182 need_memalign="altivec neon sse"
1183 inline_asm_deps="!tms470"
1184
1185 symver_if_any="symver_asm_label symver_gnu_asm"
1186
1187 # subsystems
1188 dct_select="rdft"
1189 mdct_select="fft"
1190 rdft_select="fft"
1191
1192 # decoders / encoders / hardware accelerators
1193 aac_decoder_select="mdct rdft"
1194 aac_encoder_select="mdct"
1195 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1196 ac3_decoder_select="mdct ac3_parser"
1197 ac3_encoder_select="mdct"
1198 alac_encoder_select="lpc"
1199 amrnb_decoder_select="lsp"
1200 amrwb_decoder_select="lsp"
1201 atrac1_decoder_select="mdct"
1202 atrac3_decoder_select="mdct"
1203 binkaudio_dct_decoder_select="mdct rdft dct"
1204 binkaudio_rdft_decoder_select="mdct rdft"
1205 cavs_decoder_select="golomb"
1206 cook_decoder_select="mdct"
1207 cscd_decoder_suggest="zlib"
1208 dca_decoder_select="mdct"
1209 dnxhd_encoder_select="aandct"
1210 dxa_decoder_select="zlib"
1211 eac3_decoder_select="ac3_decoder"
1212 eamad_decoder_select="aandct"
1213 eatgq_decoder_select="aandct"
1214 eatqi_decoder_select="aandct"
1215 ffv1_decoder_select="golomb"
1216 flac_decoder_select="golomb"
1217 flac_encoder_select="golomb lpc"
1218 flashsv_decoder_select="zlib"
1219 flashsv_encoder_select="zlib"
1220 flv_decoder_select="h263_decoder"
1221 flv_encoder_select="h263_encoder"
1222 fraps_decoder_select="huffman"
1223 h261_encoder_select="aandct"
1224 h263_decoder_select="h263_parser"
1225 h263_encoder_select="aandct"
1226 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1227 h263i_decoder_select="h263_decoder"
1228 h263p_encoder_select="h263_encoder"
1229 h264_decoder_select="golomb h264dsp h264pred"
1230 h264_dxva2_hwaccel_deps="dxva2api_h"
1231 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1232 h264_vaapi_hwaccel_select="vaapi"
1233 h264_vdpau_decoder_select="vdpau h264_decoder"
1234 imc_decoder_select="fft mdct"
1235 jpegls_decoder_select="golomb"
1236 jpegls_encoder_select="golomb"
1237 ljpeg_encoder_select="aandct"
1238 loco_decoder_select="golomb"
1239 mjpeg_encoder_select="aandct"
1240 mlp_decoder_select="mlp_parser"
1241 mp1float_decoder_select="dct"
1242 mp2float_decoder_select="dct"
1243 mp3adufloat_decoder_select="dct"
1244 mp3float_decoder_select="dct"
1245 mp3on4float_decoder_select="dct"
1246 mpeg1video_encoder_select="aandct"
1247 mpeg2video_encoder_select="aandct"
1248 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1249 mpeg4_encoder_select="h263_encoder"
1250 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1251 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1252 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1253 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1254 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1255 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1256 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1257 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1258 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1259 msmpeg4v1_decoder_select="h263_decoder"
1260 msmpeg4v1_encoder_select="h263_encoder"
1261 msmpeg4v2_decoder_select="h263_decoder"
1262 msmpeg4v2_encoder_select="h263_encoder"
1263 msmpeg4v3_decoder_select="h263_decoder"
1264 msmpeg4v3_encoder_select="h263_encoder"
1265 nellymoser_decoder_select="mdct"
1266 nellymoser_encoder_select="mdct"
1267 png_decoder_select="zlib"
1268 png_encoder_select="zlib"
1269 qcelp_decoder_select="lsp"
1270 qdm2_decoder_select="mdct rdft"
1271 ra_144_encoder_select="lpc"
1272 rv10_decoder_select="h263_decoder"
1273 rv10_encoder_select="h263_encoder"
1274 rv20_decoder_select="h263_decoder"
1275 rv20_encoder_select="h263_encoder"
1276 rv30_decoder_select="golomb h264pred"
1277 rv40_decoder_select="golomb h264pred"
1278 shorten_decoder_select="golomb"
1279 sipr_decoder_select="lsp"
1280 snow_decoder_select="dwt"
1281 snow_encoder_select="aandct dwt"
1282 sonic_decoder_select="golomb"
1283 sonic_encoder_select="golomb"
1284 sonic_ls_encoder_select="golomb"
1285 svq1_encoder_select="aandct"
1286 svq3_decoder_select="golomb h264dsp h264pred"
1287 svq3_decoder_suggest="zlib"
1288 theora_decoder_select="vp3_decoder"
1289 tiff_decoder_suggest="zlib"
1290 tiff_encoder_suggest="zlib"
1291 truehd_decoder_select="mlp_decoder"
1292 tscc_decoder_select="zlib"
1293 twinvq_decoder_select="mdct lsp"
1294 vc1_decoder_select="h263_decoder"
1295 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1296 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1297 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1298 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1299 vorbis_decoder_select="mdct"
1300 vorbis_encoder_select="mdct"
1301 vp6_decoder_select="huffman"
1302 vp6a_decoder_select="vp6_decoder"
1303 vp6f_decoder_select="vp6_decoder"
1304 vp8_decoder_select="h264pred"
1305 wmapro_decoder_select="mdct"
1306 wmav1_decoder_select="mdct"
1307 wmav1_encoder_select="mdct"
1308 wmav2_decoder_select="mdct"
1309 wmav2_encoder_select="mdct"
1310 wmavoice_decoder_select="lsp rdft dct mdct"
1311 wmv1_decoder_select="h263_decoder"
1312 wmv1_encoder_select="h263_encoder"
1313 wmv2_decoder_select="h263_decoder"
1314 wmv2_encoder_select="h263_encoder"
1315 wmv3_decoder_select="vc1_decoder"
1316 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1317 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1318 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1319 zlib_decoder_select="zlib"
1320 zlib_encoder_select="zlib"
1321 zmbv_decoder_select="zlib"
1322 zmbv_encoder_select="zlib"
1323
1324 vaapi_deps="va_va_h"
1325 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1326
1327 # parsers
1328 h264_parser_select="golomb h264dsp h264pred"
1329
1330 # external libraries
1331 libdirac_decoder_deps="libdirac !libschroedinger"
1332 libdirac_encoder_deps="libdirac"
1333 libfaac_encoder_deps="libfaac"
1334 libgsm_decoder_deps="libgsm"
1335 libgsm_encoder_deps="libgsm"
1336 libgsm_ms_decoder_deps="libgsm"
1337 libgsm_ms_encoder_deps="libgsm"
1338 libmp3lame_encoder_deps="libmp3lame"
1339 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1340 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1341 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1342 libopenjpeg_decoder_deps="libopenjpeg"
1343 libschroedinger_decoder_deps="libschroedinger"
1344 libschroedinger_encoder_deps="libschroedinger"
1345 libspeex_decoder_deps="libspeex"
1346 libtheora_encoder_deps="libtheora"
1347 libvorbis_encoder_deps="libvorbis"
1348 libvpx_decoder_deps="libvpx"
1349 libvpx_encoder_deps="libvpx"
1350 libx264_encoder_deps="libx264"
1351 libxavs_encoder_deps="libxavs"
1352 libxvid_encoder_deps="libxvid"
1353
1354 # demuxers / muxers
1355 ac3_demuxer_deps="ac3_parser"
1356 asf_stream_muxer_select="asf_muxer"
1357 avisynth_demuxer_deps="avisynth"
1358 dirac_demuxer_deps="dirac_parser"
1359 eac3_demuxer_select="ac3_parser"
1360 flac_demuxer_deps="flac_parser"
1361 ipod_muxer_select="mov_muxer"
1362 libnut_demuxer_deps="libnut"
1363 libnut_muxer_deps="libnut"
1364 matroska_audio_muxer_select="matroska_muxer"
1365 matroska_demuxer_suggest="zlib bzlib"
1366 mov_demuxer_suggest="zlib"
1367 mp3_demuxer_deps="mpegaudio_parser"
1368 mp4_muxer_select="mov_muxer"
1369 mpegtsraw_demuxer_select="mpegts_demuxer"
1370 mxf_d10_muxer_select="mxf_muxer"
1371 ogg_demuxer_select="golomb"
1372 psp_muxer_select="mov_muxer"
1373 rtp_demuxer_select="sdp_demuxer"
1374 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1375 rtsp_demuxer_select="http_protocol rtpdec"
1376 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1377 sap_demuxer_select="sdp_demuxer"
1378 sap_muxer_select="rtp_muxer rtp_protocol"
1379 sdp_demuxer_select="rtpdec"
1380 spdif_muxer_select="aac_parser"
1381 tg2_muxer_select="mov_muxer"
1382 tgp_muxer_select="mov_muxer"
1383 w64_demuxer_deps="wav_demuxer"
1384
1385 # indevs / outdevs
1386 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1387 alsa_outdev_deps="alsa_asoundlib_h"
1388 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1389 dv1394_indev_deps="dv1394 dv_demuxer"
1390 jack_indev_deps="jack_jack_h"
1391 libdc1394_indev_deps="libdc1394"
1392 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1393 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1394 v4l_indev_deps="linux_videodev_h"
1395 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1396 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1397 vfwcap_indev_extralibs="-lavicap32"
1398 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1399 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1400
1401 # protocols
1402 gopher_protocol_deps="network"
1403 http_protocol_deps="network"
1404 http_protocol_select="tcp_protocol"
1405 mmsh_protocol_select="http_protocol"
1406 mmst_protocol_deps="network"
1407 rtmp_protocol_select="tcp_protocol"
1408 rtp_protocol_select="udp_protocol"
1409 tcp_protocol_deps="network"
1410 udp_protocol_deps="network"
1411
1412 # filters
1413 blackframe_filter_deps="gpl"
1414 cropdetect_filter_deps="gpl"
1415 frei0r_filter_deps="frei0r dlopen strtok_r"
1416 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1417 hqdn3d_filter_deps="gpl"
1418 mp_filter_deps="gpl"
1419 scale_filter_deps="swscale"
1420 ocv_filter_deps="libopencv"
1421 yadif_filter_deps="gpl"
1422
1423 # libraries
1424 avdevice_deps="avcodec avformat"
1425 avformat_deps="avcodec"
1426
1427 # programs
1428 ffmpeg_deps="avcodec avformat swscale"
1429 ffmpeg_select="buffer_filter"
1430 ffplay_deps="avcodec avformat swscale sdl"
1431 ffplay_select="rdft"
1432 ffprobe_deps="avcodec avformat"
1433 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1434 ffserver_extralibs='$ldl'
1435
1436 doc_deps="texi2html"
1437
1438 # tests
1439
1440 test_deps(){
1441     suf1=$1
1442     suf2=$2
1443     shift 2
1444     for v; do
1445         dep=${v%=*}
1446         tests=${v#*=}
1447         for name in ${tests}; do
1448             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1449         done
1450     done
1451 }
1452
1453 set_ne_test_deps(){
1454     eval ${1}_be_test_deps="bigendian"
1455     eval ${1}_le_test_deps="!bigendian"
1456 }
1457
1458 test_deps _encoder _decoder                                             \
1459     adpcm_g726=g726                                                     \
1460     adpcm_ima_qt                                                        \
1461     adpcm_ima_wav                                                       \
1462     adpcm_ms                                                            \
1463     adpcm_swf                                                           \
1464     adpcm_yamaha=adpcm_yam                                              \
1465     alac                                                                \
1466     asv1                                                                \
1467     asv2                                                                \
1468     bmp                                                                 \
1469     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1470     dvvideo="dv dv50"                                                   \
1471     ffv1                                                                \
1472     flac                                                                \
1473     flashsv                                                             \
1474     flv                                                                 \
1475     gif                                                                 \
1476     h261                                                                \
1477     h263="h263 h263p"                                                   \
1478     huffyuv                                                             \
1479     jpegls                                                              \
1480     mjpeg="jpg mjpeg ljpeg"                                             \
1481     mp2                                                                 \
1482     mpeg1video="mpeg mpeg1b"                                            \
1483     mpeg2video="mpeg2 mpeg2thread"                                      \
1484     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1485     msmpeg4v3=msmpeg4                                                   \
1486     msmpeg4v2                                                           \
1487     pbm=pbmpipe                                                         \
1488     pcx                                                                 \
1489     pgm="pgm pgmpipe"                                                   \
1490     png                                                                 \
1491     ppm="ppm ppmpipe"                                                   \
1492     rawvideo="rgb yuv"                                                  \
1493     roq                                                                 \
1494     rv10                                                                \
1495     rv20                                                                \
1496     sgi                                                                 \
1497     snow="snow snowll"                                                  \
1498     svq1                                                                \
1499     targa=tga                                                           \
1500     tiff                                                                \
1501     wmav1                                                               \
1502     wmav2                                                               \
1503     wmv1                                                                \
1504     wmv2                                                                \
1505
1506 test_deps _muxer _demuxer                                               \
1507     aiff                                                                \
1508     pcm_alaw=alaw                                                       \
1509     asf                                                                 \
1510     au                                                                  \
1511     avi                                                                 \
1512     dv=dv_fmt                                                           \
1513     ffm                                                                 \
1514     flv=flv_fmt                                                         \
1515     gxf                                                                 \
1516     matroska=mkv                                                        \
1517     mmf                                                                 \
1518     mov                                                                 \
1519     pcm_mulaw=mulaw                                                     \
1520     mxf                                                                 \
1521     nut                                                                 \
1522     ogg                                                                 \
1523     rawvideo=pixfmt                                                     \
1524     rm                                                                  \
1525     swf                                                                 \
1526     mpegts=ts                                                           \
1527     voc                                                                 \
1528     wav                                                                 \
1529     yuv4mpegpipe=yuv4mpeg                                               \
1530
1531 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1532 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1533
1534 set_ne_test_deps pixdesc
1535 set_ne_test_deps pixfmts_copy
1536 set_ne_test_deps pixfmts_crop
1537 set_ne_test_deps pixfmts_hflip
1538 set_ne_test_deps pixfmts_null
1539 set_ne_test_deps pixfmts_pad
1540 set_ne_test_deps pixfmts_scale
1541 set_ne_test_deps pixfmts_vflip
1542
1543 # default parameters
1544
1545 logfile="config.log"
1546
1547 # installation paths
1548 prefix_default="/usr/local"
1549 bindir_default='${prefix}/bin'
1550 datadir_default='${prefix}/share/ffmpeg'
1551 incdir_default='${prefix}/include'
1552 libdir_default='${prefix}/lib'
1553 mandir_default='${prefix}/share/man'
1554 shlibdir_default="$libdir_default"
1555
1556 # toolchain
1557 ar_default="ar"
1558 cc_default="gcc"
1559 cc_version=\"unknown\"
1560 host_cc_default="gcc"
1561 ln_s="ln -sf"
1562 nm_default="nm"
1563 objformat="elf"
1564 ranlib="ranlib"
1565 strip_default="strip"
1566 yasmexe="yasm"
1567 nogas=":"
1568
1569 nm_opts='-g'
1570
1571 # machine
1572 arch_default=$(uname -m)
1573 cpu="generic"
1574
1575 # OS
1576 target_os_default=$(tolower $(uname -s))
1577 host_os=$target_os_default
1578
1579 # configurable options
1580 enable avcodec
1581 enable avcore
1582 enable avdevice
1583 enable avfilter
1584 enable avformat
1585 enable avutil
1586 enable asm
1587 enable debug
1588 enable doc
1589 enable fastdiv
1590 enable ffmpeg
1591 enable ffplay
1592 enable ffprobe
1593 enable ffserver
1594 enable mpegaudio_hp
1595 enable network
1596 enable optimizations
1597 enable protocols
1598 enable static
1599 enable stripping
1600 enable swscale
1601 enable swscale_alpha
1602
1603 # build settings
1604 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1605 FFSERVERLDFLAGS=-Wl,-E
1606 LIBPREF="lib"
1607 LIBSUF=".a"
1608 FULLNAME='$(NAME)$(BUILDSUF)'
1609 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1610 SLIBPREF="lib"
1611 SLIBSUF=".so"
1612 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1613 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1614 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1615 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1616
1617 CC_O='-o $@'
1618
1619 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1620 host_libs='-lm'
1621
1622 target_path='$(CURDIR)'
1623
1624 # since the object filename is not given with the -MM flag, the compiler
1625 # is only able to print the basename, and we must add the path ourselves
1626 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1627 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1628
1629 # find source path
1630 source_path="$(dirname "$0")"
1631 enable source_path_used
1632 if test -f configure; then
1633     source_path="$(pwd)"
1634     disable source_path_used
1635 else
1636     source_path="$(cd "$source_path"; pwd)"
1637     echo "$source_path" | grep -q '[[:blank:]]' &&
1638         die "Out of tree builds are impossible with whitespace in source path."
1639     test -e "$source_path/config.h" &&
1640         die "Out of tree builds are impossible with config.h in source dir."
1641 fi
1642
1643 for v in "$@"; do
1644     r=${v#*=}
1645     l=${v%"$r"}
1646     r=$(sh_quote "$r")
1647     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1648 done
1649
1650 find_things(){
1651     thing=$1
1652     pattern=$2
1653     file=$source_path/$3
1654     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1655 }
1656
1657 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1658 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1659 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1660 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1661 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1662 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1663 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1664 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1665 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1666 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1667 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1668
1669 find_tests(){
1670     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1671 }
1672
1673 ACODEC_TESTS=$(find_tests acodec)
1674 VCODEC_TESTS=$(find_tests vsynth1)
1675 LAVF_TESTS=$(find_tests lavf)
1676 LAVFI_TESTS=$(find_tests lavfi)
1677 SEEK_TESTS=$(find_tests seek seek_)
1678
1679 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1680
1681 for n in $COMPONENT_LIST; do
1682     v=$(toupper ${n%s})_LIST
1683     eval enable \$$v
1684     eval ${n}_if_any="\$$v"
1685 done
1686
1687 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1688
1689 die_unknown(){
1690     echo "Unknown option \"$1\"."
1691     echo "See $0 --help for available options."
1692     exit 1
1693 }
1694
1695 show_list() {
1696     suffix=_$1
1697     shift
1698     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1699     exit 0
1700 }
1701
1702 for opt do
1703     optval="${opt#*=}"
1704     case "$opt" in
1705     --extra-ldflags=*) add_ldflags $optval
1706     ;;
1707     --extra-libs=*) add_extralibs $optval
1708     ;;
1709     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1710     ;;
1711     --enable-debug=*) debuglevel="$optval"
1712     ;;
1713     --disable-everything)
1714     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1715     ;;
1716     --enable-*=*|--disable-*=*)
1717     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1718     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1719     eval list=\$$(toupper $thing)_LIST
1720     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1721     $action $(filter "$name" $list)
1722     ;;
1723     --enable-?*|--disable-?*)
1724     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1725     if is_in $option $COMPONENT_LIST; then
1726         test $action = disable && action=unset
1727         eval $action \$$(toupper ${option%s})_LIST
1728     elif is_in $option $CMDLINE_SELECT; then
1729         $action $option
1730     else
1731         die_unknown $opt
1732     fi
1733     ;;
1734     --list-*)
1735         NAME="${opt#--list-}"
1736         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1737         NAME=${NAME%s}
1738         eval show_list $NAME \$$(toupper $NAME)_LIST
1739     ;;
1740     --help|-h) show_help
1741     ;;
1742     *)
1743     optname="${opt%%=*}"
1744     optname="${optname#--}"
1745     optname=$(echo "$optname" | sed 's/-/_/g')
1746     if is_in $optname $CMDLINE_SET; then
1747         eval $optname='$optval'
1748     elif is_in $optname $CMDLINE_APPEND; then
1749         append $optname "$optval"
1750     else
1751          die_unknown $opt
1752     fi
1753     ;;
1754     esac
1755 done
1756
1757 disabled logging && logfile=/dev/null
1758
1759 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1760 set >> $logfile
1761
1762 test -n "$cross_prefix" && enable cross_compile
1763
1764 if enabled cross_compile; then
1765     test -n "$arch" && test -n "$target_os" ||
1766         die "Must specify target arch and OS when cross-compiling"
1767 fi
1768
1769 set_default arch target_os
1770
1771 ar_default="${cross_prefix}${ar_default}"
1772 cc_default="${cross_prefix}${cc_default}"
1773 nm_default="${cross_prefix}${nm_default}"
1774 ranlib="${cross_prefix}${ranlib}"
1775 strip_default="${cross_prefix}${strip_default}"
1776
1777 sysinclude_default="${sysroot}/usr/include"
1778
1779 set_default cc nm strip sysinclude
1780 enabled cross_compile || host_cc_default=$cc
1781 set_default host_cc
1782
1783 exesuf() {
1784     case $1 in
1785         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1786     esac
1787 }
1788
1789 EXESUF=$(exesuf $target_os)
1790 HOSTEXESUF=$(exesuf $host_os)
1791
1792 # set temporary file name
1793 : ${TMPDIR:=$TEMPDIR}
1794 : ${TMPDIR:=$TMP}
1795 : ${TMPDIR:=/tmp}
1796
1797 if ! check_cmd mktemp -u; then
1798     # simple replacement for missing mktemp
1799     # NOT SAFE FOR GENERAL USE
1800     mktemp(){
1801         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1802     }
1803 fi
1804
1805 tmpfile(){
1806     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1807         (set -C; exec > $tmp) 2>/dev/null ||
1808         die "Unable to create temporary file in $TMPDIR."
1809     append TMPFILES $tmp
1810     eval $1=$tmp
1811 }
1812
1813 trap 'rm -f -- $TMPFILES' EXIT
1814 trap exit HUP INT TERM
1815
1816 tmpfile TMPC  .c
1817 tmpfile TMPE  $EXESUF
1818 tmpfile TMPH  .h
1819 tmpfile TMPO  .o
1820 tmpfile TMPS  .S
1821 tmpfile TMPV  .ver
1822 tmpfile TMPSH .sh
1823 tmpfile TMPASM .asm
1824
1825 unset -f mktemp
1826
1827 chmod +x $TMPE
1828
1829 # make sure we can execute files in $TMPDIR
1830 cat > $TMPSH 2>> $logfile <<EOF
1831 #! /bin/sh
1832 EOF
1833 chmod +x $TMPSH >> $logfile 2>&1
1834 if ! $TMPSH >> $logfile 2>&1; then
1835     cat <<EOF
1836 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1837 variable to another directory and make sure that it is not mounted noexec.
1838 EOF
1839     die "Sanity test failed."
1840 fi
1841
1842 filter_cflags=echo
1843 filter_cppflags=echo
1844 filter_asflags=echo
1845
1846 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1847     cc_type=llvm_gcc
1848     cc_version=__VERSION__
1849     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1850     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1851     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1852     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1853     speed_cflags='-O3'
1854     size_cflags='-Os'
1855 elif $cc -v 2>&1 | grep -qi ^gcc; then
1856     cc_type=gcc
1857     cc_version=__VERSION__
1858     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1859     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1860     if ! $cc -dumpversion | grep -q '^2\.'; then
1861         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1862         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1863     fi
1864     speed_cflags='-O3'
1865     size_cflags='-Os'
1866 elif $cc --version 2>/dev/null | grep -q Intel; then
1867     cc_type=icc
1868     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1869     cc_ident=$($cc --version | head -n1)
1870     icc_version=$($cc -dumpversion)
1871     CC_DEPFLAGS='-MMD'
1872     AS_DEPFLAGS='-MMD'
1873     speed_cflags='-O3'
1874     size_cflags='-Os'
1875     noopt_cflags='-O1'
1876 elif $cc -v 2>&1 | grep -q xlc; then
1877     cc_type=xlc
1878     cc_version="AV_STRINGIFY(__IBMC__)"
1879     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1880     speed_cflags='-O5'
1881     size_cflags='-O5 -qcompact'
1882 elif $cc -V 2>/dev/null | grep -q Compaq; then
1883     cc_type=ccc
1884     cc_version="AV_STRINGIFY(__DECC_VER)"
1885     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1886     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1887     debuglevel=3
1888     add_ldflags -Wl,-z,now # calls to libots crash without this
1889     speed_cflags='-fast'
1890     size_cflags='-O1'
1891 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1892     test -d "$sysroot" || die "No valid sysroot specified."
1893     cc_type=armcc
1894     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1895     cc_ident=$($cc --vsn | head -n1)
1896     armcc_conf="$PWD/armcc.conf"
1897     $cc --arm_linux_configure                 \
1898         --arm_linux_config_file="$armcc_conf" \
1899         --configure_sysroot="$sysroot"        \
1900         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1901         die "Error creating armcc configuration file."
1902     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1903     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1904     as_default="${cross_prefix}gcc"
1905     CC_DEPFLAGS='-MMD'
1906     AS_DEPFLAGS='-MMD'
1907     speed_cflags='-O3'
1908     size_cflags='-Os'
1909 elif $cc -version 2>/dev/null | grep -q TMS470; then
1910     cc_type=tms470
1911     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1912     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1913     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1914     CC_O='-fr=$(@D)'
1915     as_default="${cross_prefix}gcc"
1916     ld_default="${cross_prefix}gcc"
1917     TMPO=$(basename $TMPC .c).o
1918     append TMPFILES $TMPO
1919     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1920     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1921     AS_DEPFLAGS='-MMD'
1922     speed_cflags='-O3 -mf=5'
1923     size_cflags='-O3 -mf=2'
1924     filter_cflags=tms470_flags
1925     tms470_flags(){
1926         for flag; do
1927             case $flag in
1928                 -march=*|-mcpu=*)
1929                     case "${flag#*=}" in
1930                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1931                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1932                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1933                         armv6*|arm11*)          echo -mv=6   ;;
1934                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1935                                                 echo -mv=5e  ;;
1936                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1937                     esac
1938                     ;;
1939                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1940                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1941                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1942                 -msoft-float)   echo --float_support=vfplib       ;;
1943                 -O[0-3]|-mf=*)  echo $flag                        ;;
1944                 -g)             echo -g -mn                       ;;
1945                 -pds=*)         echo $flag                        ;;
1946             esac
1947         done
1948     }
1949 elif $cc -v 2>&1 | grep -q clang; then
1950     cc_type=clang
1951     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1952         cc_version=__clang_version__ || cc_version=__VERSION__
1953     cc_ident=$($cc --version | head -n1)
1954     CC_DEPFLAGS='-MMD'
1955     AS_DEPFLAGS='-MMD'
1956     speed_cflags='-O3'
1957     size_cflags='-Os'
1958 elif $cc -V 2>&1 | grep -q Sun; then
1959     cc_type=suncc
1960     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1961     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1962     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1963     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1964     speed_cflags='-O5'
1965     size_cflags='-O5 -xspace'
1966     filter_cflags=suncc_flags
1967     suncc_flags(){
1968         for flag; do
1969             case $flag in
1970                 -march=*|-mcpu=*)
1971                     case "${flag#*=}" in
1972                         native)                   echo -xtarget=native       ;;
1973                         v9|niagara)               echo -xarch=sparc          ;;
1974                         ultrasparc)               echo -xarch=sparcvis       ;;
1975                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1976                         i586|pentium)             echo -xchip=pentium        ;;
1977                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1978                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1979                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1980                         pentium4*)          echo -xtarget=pentium4           ;;
1981                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1982                         *-sse3)             echo -xarch=sse3                 ;;
1983                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1984                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1985                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1986                         k8|opteron|athlon64|athlon-fx)
1987                                                   echo -xarch=sse2a          ;;
1988                         athlon*)                  echo -xarch=pentium_proa   ;;
1989                     esac
1990                     ;;
1991                 -std=c99)             echo -xc99              ;;
1992                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1993                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1994                 -W*,*)                echo $flag              ;;
1995                 -f*-*|-W*)                                    ;;
1996                 *)                    echo $flag              ;;
1997             esac
1998         done
1999     }
2000 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2001     cc_type=pathscale
2002     cc_version=__PATHSCALE__
2003     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2004     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2005     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2006     speed_cflags='-O2'
2007     size_cflags='-Os'
2008 elif $cc -v 2>&1 | grep -q Open64; then
2009     cc_type=open64
2010     cc_version=__OPEN64__
2011     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2012     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2013     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2014     speed_cflags='-O2'
2015     size_cflags='-Os'
2016 fi
2017
2018 test -n "$cc_type" && enable $cc_type ||
2019     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2020
2021 : ${as_default:=$cc}
2022 : ${dep_cc_default:=$cc}
2023 : ${ld_default:=$cc}
2024 set_default ar as dep_cc ld
2025
2026 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2027 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2028
2029 add_cflags $extra_cflags
2030 add_asflags $extra_cflags
2031
2032 if test -n "$sysroot"; then
2033     case "$cc_type" in
2034         gcc|llvm_gcc)
2035             add_cppflags --sysroot="$sysroot"
2036             add_ldflags --sysroot="$sysroot"
2037         ;;
2038         tms470)
2039             add_cppflags -I"$sysinclude"
2040             add_ldflags  --sysroot="$sysroot"
2041         ;;
2042         clang)
2043             add_cppflags -isysroot "$sysroot"
2044             add_ldflags -isysroot "$sysroot"
2045         ;;
2046     esac
2047 fi
2048
2049 if test "$cpu" = host; then
2050     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2051
2052     case "$cc_type" in
2053         gcc|llvm_gcc)
2054             check_native(){
2055                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2056                 sed -n "/$1=/{
2057                             s/.*$1=\\([^ ]*\\).*/\\1/
2058                             p
2059                             q
2060                         }" $TMPE
2061             }
2062             cpu=$(check_native -march || check_native -mcpu)
2063         ;;
2064     esac
2065
2066     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2067 fi
2068
2069 # Deal with common $arch aliases
2070 case "$arch" in
2071     arm*)
2072         arch="arm"
2073     ;;
2074     mips|mipsel|IP*)
2075         arch="mips"
2076     ;;
2077     mips64*)
2078         arch="mips"
2079         subarch="mips64"
2080     ;;
2081     parisc|hppa)
2082         arch="parisc"
2083     ;;
2084     parisc64|hppa64)
2085         arch="parisc"
2086         subarch="parisc64"
2087     ;;
2088     "Power Macintosh"|ppc|powerpc)
2089         arch="ppc"
2090     ;;
2091     ppc64|powerpc64)
2092         arch="ppc"
2093         subarch="ppc64"
2094     ;;
2095     s390|s390x)
2096         arch="s390"
2097     ;;
2098     sh4|sh)
2099         arch="sh4"
2100     ;;
2101     sun4u|sparc64)
2102         arch="sparc"
2103         subarch="sparc64"
2104     ;;
2105     i[3-6]86|i86pc|BePC|x86_64|amd64)
2106         arch="x86"
2107     ;;
2108 esac
2109
2110 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2111 enable $arch
2112
2113 # Add processor-specific flags
2114 if test "$cpu" = generic; then
2115     : do nothing
2116 elif enabled ppc; then
2117
2118     case $(tolower $cpu) in
2119         601|ppc601|powerpc601)
2120             cpuflags="-mcpu=601"
2121             disable altivec
2122         ;;
2123         603*|ppc603*|powerpc603*)
2124             cpuflags="-mcpu=603"
2125             disable altivec
2126         ;;
2127         604*|ppc604*|powerpc604*)
2128             cpuflags="-mcpu=604"
2129             disable altivec
2130         ;;
2131         g3|75*|ppc75*|powerpc75*)
2132             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2133             disable altivec
2134         ;;
2135         g4|745*|ppc745*|powerpc745*)
2136             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2137         ;;
2138         74*|ppc74*|powerpc74*)
2139             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2140         ;;
2141         g5|970|ppc970|powerpc970|power4*)
2142             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2143         ;;
2144         cell)
2145             cpuflags="-mcpu=cell"
2146             enable ldbrx
2147         ;;
2148         e500v2)
2149             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2150             disable altivec
2151         ;;
2152         e500)
2153             cpuflags="-mcpu=8540 -mhard-float"
2154             disable altivec
2155         ;;
2156     esac
2157
2158 elif enabled x86; then
2159
2160     case $cpu in
2161         i[345]86|pentium)
2162             cpuflags="-march=$cpu"
2163             disable mmx
2164         ;;
2165         # targets that do NOT support conditional mov (cmov)
2166         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2167             cpuflags="-march=$cpu"
2168             disable cmov
2169         ;;
2170         # targets that do support conditional mov (cmov)
2171         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2172             cpuflags="-march=$cpu"
2173             enable cmov
2174             enable fast_cmov
2175         ;;
2176         # targets that do support conditional mov but on which it's slow
2177         pentium4|pentium4m|prescott|nocona)
2178             cpuflags="-march=$cpu"
2179             enable cmov
2180             disable fast_cmov
2181         ;;
2182     esac
2183
2184 elif enabled sparc; then
2185
2186     case $cpu in
2187         niagara)
2188             cpuflags="-mcpu=$cpu"
2189             disable vis
2190         ;;
2191         sparc64)
2192             cpuflags="-mcpu=v9"
2193         ;;
2194     esac
2195
2196 elif enabled arm; then
2197
2198     case $cpu in
2199         armv*)
2200             cpuflags="-march=$cpu"
2201             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2202         ;;
2203         *)
2204             cpuflags="-mcpu=$cpu"
2205             case $cpu in
2206                 cortex-a*)                               subarch=armv7a  ;;
2207                 cortex-r*)                               subarch=armv7r  ;;
2208                 cortex-m*)                               subarch=armv7m  ;;
2209                 arm11*)                                  subarch=armv6   ;;
2210                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2211                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2212             esac
2213         ;;
2214     esac
2215
2216 elif enabled alpha; then
2217
2218     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2219
2220 elif enabled bfin; then
2221
2222     cpuflags="-mcpu=$cpu"
2223
2224 elif enabled mips; then
2225
2226     cpuflags="-march=$cpu"
2227
2228 elif enabled avr32; then
2229
2230     case $cpu in
2231         ap7[02]0[0-2])
2232             subarch="avr32_ap"
2233             cpuflags="-mpart=$cpu"
2234         ;;
2235         ap)
2236             subarch="avr32_ap"
2237             cpuflags="-march=$cpu"
2238         ;;
2239         uc3[ab]*)
2240             subarch="avr32_uc"
2241             cpuflags="-mcpu=$cpu"
2242         ;;
2243         uc)
2244             subarch="avr32_uc"
2245             cpuflags="-march=$cpu"
2246         ;;
2247     esac
2248
2249 fi
2250
2251 add_cflags $cpuflags
2252 add_asflags $cpuflags
2253
2254 # compiler sanity check
2255 check_exec <<EOF
2256 int main(void){ return 0; }
2257 EOF
2258 if test "$?" != 0; then
2259     echo "$cc is unable to create an executable file."
2260     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2261         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2262         echo "Only do this if you know what cross compiling means."
2263     fi
2264     die "C compiler test failed."
2265 fi
2266
2267 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2268 check_cflags -std=c99
2269 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2270 #include <stdlib.h>
2271 EOF
2272 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2273 #include <stdlib.h>
2274 EOF
2275
2276 check_host_cflags -std=c99
2277
2278 case "$arch" in
2279     alpha|ia64|mips|parisc|sparc)
2280         spic=$shared
2281     ;;
2282     x86)
2283         subarch="x86_32"
2284         check_cc <<EOF && subarch="x86_64"
2285         int test[(int)sizeof(char*) - 7];
2286 EOF
2287         if test "$subarch" = "x86_64"; then
2288             spic=$shared
2289         fi
2290     ;;
2291 esac
2292
2293 enable $subarch
2294 enabled spic && enable pic
2295
2296 # OS specific
2297 case $target_os in
2298     haiku)
2299         prefix_default="/boot/common"
2300         network_extralibs="-lnetwork"
2301         ;;
2302     sunos)
2303         FFSERVERLDFLAGS=""
2304         SHFLAGS='-shared -Wl,-h,$$(@F)'
2305         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2306         network_extralibs="-lsocket -lnsl"
2307         add_cppflags -D__EXTENSIONS__
2308         nm_opts='-P -g'
2309         ;;
2310     netbsd)
2311         oss_indev_extralibs="-lossaudio"
2312         oss_outdev_extralibs="-lossaudio"
2313         add_cppflags -D_XOPEN_SOURCE=600
2314         ;;
2315     openbsd)
2316         enable malloc_aligned
2317         # On OpenBSD 4.5. the compiler does not use PIC unless
2318         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2319         # however the generated executable will not do anything
2320         # (simply quits with exit-code 1, no crash, no output).
2321         # Thus explicitly enable PIC here.
2322         enable pic
2323         SHFLAGS='-shared'
2324         oss_indev_extralibs="-lossaudio"
2325         oss_outdev_extralibs="-lossaudio"
2326         ;;
2327     freebsd|dragonfly)
2328         enable malloc_aligned
2329         ;;
2330     bsd/os)
2331         add_extralibs -lpoll -lgnugetopt
2332         strip="strip -d"
2333         ;;
2334     darwin)
2335         enable malloc_aligned
2336         gas="gas-preprocessor.pl $cc"
2337         enabled ppc && add_asflags -force_cpusubtype_ALL
2338         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2339         strip="${strip} -x"
2340         add_ldflags -Wl,-dynamic,-search_paths_first
2341         SLIBSUF=".dylib"
2342         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2343         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2344         FFSERVERLDFLAGS=-Wl,-bind_at_load
2345         objformat="macho"
2346         enabled x86_64 && objformat="macho64"
2347         enabled_any pic shared ||
2348             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2349         ;;
2350     mingw32*)
2351         if test $target_os = "mingw32ce"; then
2352             disable network
2353         else
2354             target_os=mingw32
2355         fi
2356         LIBTARGET=i386
2357         if enabled x86_64; then
2358             enable malloc_aligned
2359             LIBTARGET=x64
2360         elif enabled arm; then
2361             LIBTARGET=arm
2362         fi
2363         shlibdir_default="$bindir_default"
2364         disable ffserver
2365         SLIBPREF=""
2366         SLIBSUF=".dll"
2367         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2368         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2369         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2370         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2371             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2372             install -d "$(LIBDIR)"; \
2373             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2374         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2375         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'
2376         objformat="win32"
2377         enable dos_paths
2378         check_cflags -fno-common
2379         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2380                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2381                 die "ERROR: MinGW runtime version must be >= 3.15."
2382         ;;
2383     cygwin*)
2384         target_os=cygwin
2385         shlibdir_default="$bindir_default"
2386         SLIBPREF="cyg"
2387         SLIBSUF=".dll"
2388         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2389         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2390         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2391         objformat="win32"
2392         enable dos_paths
2393         check_cflags -fno-common
2394         ;;
2395     *-dos|freedos|opendos)
2396         disable ffplay ffserver
2397         disable $INDEV_LIST $OUTDEV_LIST
2398         network_extralibs="-lsocket"
2399         objformat="coff"
2400         enable dos_paths
2401         ;;
2402     linux)
2403         enable dv1394
2404         ;;
2405     irix*)
2406         target_os=irix
2407         ranlib="echo ignoring ranlib"
2408         ;;
2409     os/2*)
2410         strip="lxlite"
2411         ln_s="cp -f"
2412         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2413         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2414         FFSERVERLDFLAGS=""
2415         LIBSUF="_s.a"
2416         SLIBPREF=""
2417         SLIBSUF=".dll"
2418         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2419         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2420         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2421           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2422           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2423           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2424           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2425           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2426         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2427           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2428         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2429         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2430         enable dos_paths
2431         ;;
2432     gnu/kfreebsd)
2433         ;;
2434     gnu)
2435         ;;
2436     none)
2437         ;;
2438     *)
2439         die "Unknown OS '$target_os'."
2440         ;;
2441 esac
2442
2443 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2444
2445 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2446
2447 set_default $PATHS_LIST
2448
2449 # we need to build at least one lib type
2450 if ! enabled_any static shared; then
2451     cat <<EOF
2452 At least one library type must be built.
2453 Specify --enable-static to build the static libraries or --enable-shared to
2454 build the shared libraries as well. To only build the shared libraries specify
2455 --disable-static in addition to --enable-shared.
2456 EOF
2457     exit 1;
2458 fi
2459
2460 disabled static && LIBNAME=""
2461
2462 die_license_disabled() {
2463     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2464 }
2465
2466 die_license_disabled gpl libx264
2467 die_license_disabled gpl libxavs
2468 die_license_disabled gpl libxvid
2469 die_license_disabled gpl postproc
2470 die_license_disabled gpl x11grab
2471
2472 die_license_disabled nonfree libfaac
2473
2474 die_license_disabled version3 libopencore_amrnb
2475 die_license_disabled version3 libopencore_amrwb
2476
2477 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2478
2479 check_deps $ARCH_EXT_LIST
2480
2481 disabled optimizations || check_cflags -fomit-frame-pointer
2482
2483 enable_pic() {
2484     enable pic
2485     add_cppflags -DPIC
2486     add_cflags   -fPIC
2487     add_asflags  -fPIC
2488 }
2489
2490 enabled pic && enable_pic
2491
2492 check_cc <<EOF || die "Symbol mangling check failed."
2493 int ff_extern;
2494 EOF
2495 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2496 extern_prefix=${sym%%ff_extern*}
2497
2498 check_cc <<EOF && enable inline_asm
2499 void foo(void) { __asm__ volatile ("" ::); }
2500 EOF
2501
2502 _restrict=
2503 for restrict_keyword in restrict __restrict__ __restrict; do
2504     check_cc <<EOF && _restrict=$restrict_keyword && break
2505 void foo(char * $restrict_keyword p);
2506 EOF
2507 done
2508
2509 check_cc <<EOF && enable attribute_packed
2510 struct { int x; } __attribute__((packed)) x;
2511 EOF
2512
2513 check_cc <<EOF && enable attribute_may_alias
2514 union { int x; } __attribute__((may_alias)) x;
2515 EOF
2516
2517 check_cc <<EOF || die "endian test failed"
2518 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2519 EOF
2520 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2521
2522 if enabled alpha; then
2523
2524     check_cflags -mieee
2525
2526 elif enabled arm; then
2527
2528     check_cflags -marm
2529     nogas=die
2530
2531     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2532         enable vfp_args
2533     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2534         case "${cross_prefix:-$cc}" in
2535             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2536             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2537 __asm__ (".eabi_attribute 28, 1");
2538 int main(void) { return 0; }
2539 EOF
2540         esac
2541         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2542     fi
2543
2544     # We have to check if pld is a nop and disable it.
2545     check_asm pld '"pld [r0]"'
2546
2547     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2548     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2549     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2550     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2551     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2552     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2553
2554     enabled_all armv6t2 shared !pic && enable_pic
2555
2556 elif enabled mips; then
2557
2558     check_asm loongson '"dmult.g $1, $2, $3"'
2559     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2560
2561 elif enabled ppc; then
2562
2563     enable local_aligned_8 local_aligned_16
2564
2565     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2566     check_asm ibm_asm   '"add 0, 0, 0"'
2567     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2568     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2569
2570     # AltiVec flags: The FSF version of GCC differs from the Apple version
2571     if enabled altivec; then
2572         nogas=warn
2573         check_cflags -maltivec -mabi=altivec &&
2574         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2575         check_cflags -faltivec
2576
2577         # check if our compiler supports Motorola AltiVec C API
2578         check_cc <<EOF || disable altivec
2579 $inc_altivec_h
2580 int main(void) {
2581     vector signed int v1, v2, v3;
2582     v1 = vec_add(v2,v3);
2583     return 0;
2584 }
2585 EOF
2586
2587         # check if our compiler supports braces for vector declarations
2588         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2589 $inc_altivec_h
2590 int main (void) { (vector int) {1}; return 0; }
2591 EOF
2592     fi
2593
2594 elif enabled sparc; then
2595
2596     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2597         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2598
2599 elif enabled x86; then
2600
2601     enable local_aligned_8 local_aligned_16
2602
2603     # check whether EBP is available on x86
2604     # As 'i' is stored on the stack, this program will crash
2605     # if the base pointer is used to access it because the
2606     # base pointer is cleared in the inline assembly code.
2607     check_exec_crash <<EOF && enable ebp_available
2608     volatile int i=0;
2609     __asm__ volatile (
2610         "xorl %%ebp, %%ebp"
2611     ::: "%ebp");
2612     return i;
2613 EOF
2614
2615     # check whether EBX is available on x86
2616     check_asm ebx_available '""::"b"(0)' &&
2617         check_asm ebx_available '"":::"%ebx"'
2618
2619     # check whether xmm clobbers are supported
2620     check_asm xmm_clobbers '"":::"%xmm0"'
2621
2622     # check whether more than 10 operands are supported
2623     check_cc <<EOF && enable ten_operands
2624 int main(void) {
2625     int x=0;
2626     __asm__ volatile(
2627         ""
2628         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2629     );
2630     return 0;
2631 }
2632 EOF
2633
2634     # check whether binutils is new enough to compile SSSE3/MMX2
2635     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2636     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2637
2638     check_asm bswap '"bswap %%eax" ::: "%eax"'
2639
2640     if ! disabled_any asm mmx yasm; then
2641         if check_cmd $yasmexe --version; then
2642             enabled x86_64 && yasm_extra="-m amd64"
2643             yasm_debug="-g dwarf2"
2644         elif check_cmd nasm -v; then
2645             yasmexe=nasm
2646             yasm_debug="-g -F dwarf"
2647             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2648         fi
2649
2650         YASMFLAGS="-f $objformat $yasm_extra"
2651         enabled pic               && append YASMFLAGS "-DPIC"
2652         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2653         case "$objformat" in
2654             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2655         esac
2656
2657         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2658             die "yasm not found, use --disable-yasm for a crippled build"
2659     fi
2660
2661     case "$cpu" in
2662         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2663             disable fast_clz
2664         ;;
2665     esac
2666
2667 fi
2668
2669 if enabled asm; then
2670     as=${gas:=$as}
2671     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2672         $nogas "GNU assembler not found, install gas-preprocessor"
2673 fi
2674
2675 if check_func dlopen; then
2676     ldl=
2677 elif check_func dlopen -ldl; then
2678     ldl=-ldl
2679 fi
2680
2681 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2682 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2683
2684 check_func  fcntl
2685 check_func  fork
2686 check_func  getaddrinfo $network_extralibs
2687 check_func  gethrtime
2688 check_func  getrusage
2689 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2690 check_func  inet_aton $network_extralibs
2691 check_func  isatty
2692 check_func  ${malloc_prefix}memalign            && enable memalign
2693 check_func  mkstemp
2694 check_func  mmap
2695 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2696 check_func  setrlimit
2697 check_func  strerror_r
2698 check_func  strtok_r
2699 check_func_headers io.h setmode
2700 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2701 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2702 check_func_headers windows.h GetProcessTimes
2703 check_func_headers windows.h MapViewOfFile
2704 check_func_headers windows.h VirtualAlloc
2705
2706 check_header conio.h
2707 check_header dlfcn.h
2708 check_header dxva2api.h
2709 check_header malloc.h
2710 check_header poll.h
2711 check_header sys/mman.h
2712 check_header sys/resource.h
2713 check_header sys/select.h
2714 check_header termios.h
2715 check_header vdpau/vdpau.h
2716 check_header vdpau/vdpau_x11.h
2717 check_header X11/extensions/XvMClib.h
2718
2719 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2720
2721 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2722      enabled_any $need_memalign ; then
2723     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2724 fi
2725
2726 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2727 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2728
2729 # check for some common methods of building with pthread support
2730 # do this before the optional library checks as some of them require pthreads
2731 if ! disabled pthreads && ! enabled w32threads; then
2732     enable pthreads
2733     if check_func pthread_create; then
2734         :
2735     elif check_func pthread_create -pthread; then
2736         add_cflags -pthread
2737         add_extralibs -pthread
2738     elif check_func pthread_create -pthreads; then
2739         add_cflags -pthreads
2740         add_extralibs -pthreads
2741     elif check_func pthread_create -lpthreadGC2; then
2742         add_extralibs -lpthreadGC2
2743     elif ! check_lib pthread.h pthread_create -lpthread; then
2744         disable pthreads
2745     fi
2746 fi
2747
2748 for thread in $THREADS_LIST; do
2749     if enabled $thread; then
2750         test -n "$thread_type" &&
2751             die "ERROR: Only one thread type must be selected." ||
2752             thread_type="$thread"
2753     fi
2754 done
2755
2756 check_lib math.h sin -lm
2757 disabled vaapi || check_lib va/va.h vaInitialize -lva
2758
2759 check_mathfunc exp2
2760 check_mathfunc exp2f
2761 check_mathfunc llrint
2762 check_mathfunc llrintf
2763 check_mathfunc log2
2764 check_mathfunc log2f
2765 check_mathfunc lrint
2766 check_mathfunc lrintf
2767 check_mathfunc round
2768 check_mathfunc roundf
2769 check_mathfunc truncf
2770
2771 # these are off by default, so fail if requested and not available
2772 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2773 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2774 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2775                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2776                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2777 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2778 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2779 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2780 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2781 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2782 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2783 enabled libopencv  && { check_lib opencv/cv.h cvCreateImageHeader $(pkg-config --libs opencv) ||
2784                         die "ERROR: libopencv not found"; }
2785 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2786 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2787                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2788 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2789                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2790 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2791 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2792 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2793 enabled libvpx     && {
2794     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2795                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2796     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2797                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2798 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2799                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2800                         die "ERROR: libx264 version must be >= 0.99."; }
2801 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2802 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2803 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2804
2805 # libdc1394 check
2806 if enabled libdc1394; then
2807     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2808         enable libdc1394_2; } ||
2809     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2810         enable libdc1394_1; } ||
2811     die "ERROR: No version of libdc1394 found "
2812 fi
2813
2814 SDL_CONFIG="${cross_prefix}sdl-config"
2815 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2816     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2817     sdl_libs=$("${SDL_CONFIG}" --libs)
2818     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2819     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2820     enable sdl &&
2821     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2822 fi
2823
2824 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2825
2826 if enabled network; then
2827     check_type "sys/types.h sys/socket.h" socklen_t
2828     check_type netdb.h "struct addrinfo"
2829     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2830     check_type netinet/in.h "struct sockaddr_in6"
2831     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2832     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2833     # Prefer arpa/inet.h over winsock2
2834     if check_header arpa/inet.h ; then
2835         check_func closesocket
2836     elif check_header winsock2.h ; then
2837         check_func_headers winsock2.h closesocket -lws2 && \
2838             network_extralibs="-lws2" || \
2839         { check_func_headers winsock2.h closesocket -lws2_32 && \
2840             network_extralibs="-lws2_32"; }
2841         check_type ws2tcpip.h socklen_t
2842         check_type ws2tcpip.h "struct addrinfo"
2843         check_type ws2tcpip.h "struct ipv6_mreq"
2844         check_type ws2tcpip.h "struct sockaddr_in6"
2845         check_type ws2tcpip.h "struct sockaddr_storage"
2846         check_struct winsock2.h "struct sockaddr" sa_len
2847     else
2848         disable network
2849     fi
2850 fi
2851
2852 check_header linux/videodev.h
2853 check_header linux/videodev2.h
2854 check_header sys/videoio.h
2855
2856 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2857 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2858 # w32api 3.12 had it defined wrong
2859 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2860
2861 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2862 { check_header dev/bktr/ioctl_meteor.h &&
2863   check_header dev/bktr/ioctl_bt848.h; } ||
2864 { check_header machine/ioctl_meteor.h &&
2865   check_header machine/ioctl_bt848.h; } ||
2866 { check_header dev/video/meteor/ioctl_meteor.h &&
2867   check_header dev/video/bktr/ioctl_bt848.h; } ||
2868 check_header dev/ic/bt8xx.h
2869
2870 check_header sys/soundcard.h
2871 check_header soundcard.h
2872
2873 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2874
2875 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2876
2877 enabled x11grab                         &&
2878 check_header X11/Xlib.h                 &&
2879 check_header X11/extensions/XShm.h      &&
2880 check_header X11/extensions/Xfixes.h    &&
2881 check_func XOpenDisplay -lX11           &&
2882 check_func XShmCreateImage -lX11 -lXext &&
2883 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2884
2885 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2886 check_cpp_condition \
2887     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2888     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2889       disable vdpau; }
2890 fi
2891
2892 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2893
2894 # add some useful compiler flags if supported
2895 check_cflags -Wdeclaration-after-statement
2896 check_cflags -Wall
2897 check_cflags -Wno-parentheses
2898 check_cflags -Wno-switch
2899 check_cflags -Wdisabled-optimization
2900 check_cflags -Wpointer-arith
2901 check_cflags -Wredundant-decls
2902 check_cflags -Wno-pointer-sign
2903 check_cflags -Wcast-qual
2904 check_cflags -Wwrite-strings
2905 check_cflags -Wtype-limits
2906 check_cflags -Wundef
2907 check_cflags -Wmissing-prototypes
2908 enabled extra_warnings && check_cflags -Winline
2909
2910 # add some linker flags
2911 check_ldflags -Wl,--warn-common
2912 check_ldflags -Wl,--as-needed
2913 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'
2914 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2915
2916 echo "X{};" > $TMPV
2917 if test_ldflags -Wl,--version-script,$TMPV; then
2918     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2919     check_cc <<EOF && enable symver_asm_label
2920 void ff_foo(void) __asm__ ("av_foo@VERSION");
2921 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2922 EOF
2923     check_cc <<EOF && enable symver_gnu_asm
2924 __asm__(".symver ff_foo,av_foo@VERSION");
2925 void ff_foo(void) {}
2926 EOF
2927 fi
2928
2929 if enabled small; then
2930     add_cflags $size_cflags
2931     optimizations="small"
2932 elif enabled optimizations; then
2933     add_cflags $speed_cflags
2934 else
2935     add_cflags $noopt_cflags
2936 fi
2937 check_cflags -fno-math-errno
2938 check_cflags -fno-signed-zeros
2939
2940 if enabled icc; then
2941     # Just warnings, no remarks
2942     check_cflags -w1
2943     # -wd: Disable following warnings
2944     # 144, 167, 556: -Wno-pointer-sign
2945     # 10006: ignoring unknown option -fno-signed-zeros
2946     # 10148: ignoring unknown option -Wno-parentheses
2947     # 10156: ignoring option '-W'; no argument required
2948     check_cflags -wd144,167,556,10006,10148,10156
2949     # 11030: Warning unknown option --as-needed
2950     # 10156: ignoring option '-export'; no argument required
2951     check_ldflags -wd10156,11030
2952     # Allow to compile with optimizations
2953     check_ldflags -march=$cpu
2954     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2955     enable ebp_available
2956     if enabled x86_32; then
2957         test ${icc_version%%.*} -ge 11 && \
2958             check_cflags -falign-stack=maintain-16-byte || \
2959             disable aligned_stack
2960     fi
2961 elif enabled ccc; then
2962     # disable some annoying warnings
2963     add_cflags -msg_disable cvtu32to64
2964     add_cflags -msg_disable embedcomment
2965     add_cflags -msg_disable needconstext
2966     add_cflags -msg_disable nomainieee
2967     add_cflags -msg_disable ptrmismatch1
2968     add_cflags -msg_disable unreachcode
2969 elif enabled gcc; then
2970     check_cflags -fno-tree-vectorize
2971     check_cflags -Werror=implicit-function-declaration
2972     check_cflags -Werror=missing-prototypes
2973 elif enabled llvm_gcc; then
2974     check_cflags -mllvm -stack-alignment=16
2975 elif enabled clang; then
2976     check_cflags -mllvm -stack-alignment=16
2977     check_cflags -Qunused-arguments
2978 elif enabled armcc; then
2979     # 2523: use of inline assembler is deprecated
2980     add_cflags -W${armcc_opt},--diag_suppress=2523
2981     add_cflags -W${armcc_opt},--diag_suppress=1207
2982     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
2983     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
2984 elif enabled tms470; then
2985     add_cflags -pds=824 -pds=837
2986 fi
2987
2988 enabled_any $THREADS_LIST      && enable threads
2989
2990 check_deps $CONFIG_LIST       \
2991            $CONFIG_EXTRA      \
2992            $HAVE_LIST         \
2993            $DECODER_LIST      \
2994            $ENCODER_LIST      \
2995            $HWACCEL_LIST      \
2996            $PARSER_LIST       \
2997            $BSF_LIST          \
2998            $DEMUXER_LIST      \
2999            $MUXER_LIST        \
3000            $FILTER_LIST       \
3001            $INDEV_LIST        \
3002            $OUTDEV_LIST       \
3003            $PROTOCOL_LIST     \
3004            $ACODEC_TESTS      \
3005            $VCODEC_TESTS      \
3006            $LAVF_TESTS        \
3007            $LAVFI_TESTS       \
3008            $SEEK_TESTS        \
3009
3010 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3011
3012 echo "install prefix            $prefix"
3013 echo "source path               $source_path"
3014 echo "C compiler                $cc"
3015 echo "ARCH                      $arch ($cpu)"
3016 if test "$build_suffix" != ""; then
3017     echo "build suffix              $build_suffix"
3018 fi
3019 if test "$extra_version" != ""; then
3020     echo "version string suffix     $extra_version"
3021 fi
3022 echo "big-endian                ${bigendian-no}"
3023 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3024 if enabled x86; then
3025     echo "yasm                      ${yasm-no}"
3026     echo "MMX enabled               ${mmx-no}"
3027     echo "MMX2 enabled              ${mmx2-no}"
3028     echo "3DNow! enabled            ${amd3dnow-no}"
3029     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3030     echo "SSE enabled               ${sse-no}"
3031     echo "SSSE3 enabled             ${ssse3-no}"
3032     echo "CMOV enabled              ${cmov-no}"
3033     echo "CMOV is fast              ${fast_cmov-no}"
3034     echo "EBX available             ${ebx_available-no}"
3035     echo "EBP available             ${ebp_available-no}"
3036     echo "10 operands supported     ${ten_operands-no}"
3037 fi
3038 if enabled arm; then
3039     echo "ARMv5TE enabled           ${armv5te-no}"
3040     echo "ARMv6 enabled             ${armv6-no}"
3041     echo "ARMv6T2 enabled           ${armv6t2-no}"
3042     echo "ARM VFP enabled           ${armvfp-no}"
3043     echo "IWMMXT enabled            ${iwmmxt-no}"
3044     echo "NEON enabled              ${neon-no}"
3045 fi
3046 if enabled mips; then
3047     echo "MMI enabled               ${mmi-no}"
3048 fi
3049 if enabled ppc; then
3050     echo "AltiVec enabled           ${altivec-no}"
3051     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3052     echo "dcbzl available           ${dcbzl-no}"
3053 fi
3054 if enabled sparc; then
3055     echo "VIS enabled               ${vis-no}"
3056 fi
3057 echo "debug symbols             ${debug-no}"
3058 echo "strip symbols             ${stripping-no}"
3059 echo "optimizations             ${optimizations-no}"
3060 echo "static                    ${static-no}"
3061 echo "shared                    ${shared-no}"
3062 echo "postprocessing support    ${postproc-no}"
3063 echo "new filter support        ${avfilter-no}"
3064 echo "network support           ${network-no}"
3065 echo "threading support         ${thread_type-no}"
3066 echo "SDL support               ${sdl-no}"
3067 echo "Sun medialib support      ${mlib-no}"
3068 echo "AVISynth enabled          ${avisynth-no}"
3069 echo "frei0r enabled            ${frei0r-no}"
3070 echo "libdc1394 support         ${libdc1394-no}"
3071 echo "libdirac enabled          ${libdirac-no}"
3072 echo "libfaac enabled           ${libfaac-no}"
3073 echo "libgsm enabled            ${libgsm-no}"
3074 echo "libmp3lame enabled        ${libmp3lame-no}"
3075 echo "libnut enabled            ${libnut-no}"
3076 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3077 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3078 echo "libopencv support         ${libopencv-no}"
3079 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3080 echo "librtmp enabled           ${librtmp-no}"
3081 echo "libschroedinger enabled   ${libschroedinger-no}"
3082 echo "libspeex enabled          ${libspeex-no}"
3083 echo "libtheora enabled         ${libtheora-no}"
3084 echo "libvorbis enabled         ${libvorbis-no}"
3085 echo "libvpx enabled            ${libvpx-no}"
3086 echo "libx264 enabled           ${libx264-no}"
3087 echo "libxavs enabled           ${libxavs-no}"
3088 echo "libxvid enabled           ${libxvid-no}"
3089 echo "zlib enabled              ${zlib-no}"
3090 echo "bzlib enabled             ${bzlib-no}"
3091 echo
3092
3093 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3094     echo "Enabled ${type}s:"
3095     eval list=\$$(toupper $type)_LIST
3096     print_enabled '_*' $list | sort | pr -3 -t
3097     echo
3098 done
3099
3100 license="LGPL version 2.1 or later"
3101 if enabled nonfree; then
3102     license="nonfree and unredistributable"
3103 elif enabled gplv3; then
3104     license="GPL version 3 or later"
3105 elif enabled lgplv3; then
3106     license="LGPL version 3 or later"
3107 elif enabled gpl; then
3108     license="GPL version 2 or later"
3109 fi
3110
3111 echo "License: $license"
3112
3113 echo "Creating config.mak and config.h..."
3114
3115 # build tree in object directory if source path is different from current one
3116 if enabled source_path_used; then
3117     DIRS="
3118         doc
3119         libavcodec
3120         libavcodec/$arch
3121         libavcore
3122         libavdevice
3123         libavfilter
3124         libavfilter/$arch
3125         libavformat
3126         libavutil
3127         libavutil/$arch
3128         libpostproc
3129         libswscale
3130         libswscale/$arch
3131         tests
3132         tools
3133     "
3134     FILES="
3135         Makefile
3136         common.mak
3137         subdir.mak
3138         doc/texi2pod.pl
3139         libavcodec/Makefile
3140         libavcodec/${arch}/Makefile
3141         libavcore/Makefile
3142         libavdevice/Makefile
3143         libavfilter/Makefile
3144         libavfilter/${arch}/Makefile
3145         libavformat/Makefile
3146         libavutil/Makefile
3147         libpostproc/Makefile
3148         libswscale/Makefile
3149     "
3150     map 'mkdir -p $v' $DIRS;
3151     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3152 fi
3153
3154 enabled stripping || strip="echo skipping strip"
3155
3156 config_files="$TMPH config.mak"
3157
3158 cat > config.mak <<EOF
3159 # Automatically generated by configure - do not modify!
3160 ifndef FFMPEG_CONFIG_MAK
3161 FFMPEG_CONFIG_MAK=1
3162 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3163 prefix=$prefix
3164 LIBDIR=\$(DESTDIR)$libdir
3165 SHLIBDIR=\$(DESTDIR)$shlibdir
3166 INCDIR=\$(DESTDIR)$incdir
3167 BINDIR=\$(DESTDIR)$bindir
3168 DATADIR=\$(DESTDIR)$datadir
3169 MANDIR=\$(DESTDIR)$mandir
3170 SRC_PATH="$source_path"
3171 SRC_PATH_BARE=$source_path
3172 BUILD_ROOT="$PWD"
3173 CC_IDENT=$cc_ident
3174 ARCH=$arch
3175 CC=$cc
3176 AS=$as
3177 LD=$ld
3178 DEPCC=$dep_cc
3179 YASM=$yasmexe
3180 YASMDEP=$yasmexe
3181 AR=$ar
3182 RANLIB=$ranlib
3183 CP=cp -p
3184 LN_S=$ln_s
3185 STRIP=$strip
3186 CPPFLAGS=$CPPFLAGS
3187 CFLAGS=$CFLAGS
3188 ASFLAGS=$ASFLAGS
3189 CC_O=$CC_O
3190 LDFLAGS=$LDFLAGS
3191 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3192 SHFLAGS=$SHFLAGS
3193 YASMFLAGS=$YASMFLAGS
3194 BUILDSUF=$build_suffix
3195 FULLNAME=$FULLNAME
3196 LIBPREF=$LIBPREF
3197 LIBSUF=$LIBSUF
3198 LIBNAME=$LIBNAME
3199 SLIBPREF=$SLIBPREF
3200 SLIBSUF=$SLIBSUF
3201 EXESUF=$EXESUF
3202 EXTRA_VERSION=$extra_version
3203 DEPFLAGS=$DEPFLAGS
3204 CCDEP=$CCDEP
3205 ASDEP=$ASDEP
3206 CC_DEPFLAGS=$CC_DEPFLAGS
3207 AS_DEPFLAGS=$AS_DEPFLAGS
3208 HOSTCC=$host_cc
3209 HOSTCFLAGS=$host_cflags
3210 HOSTEXESUF=$HOSTEXESUF
3211 HOSTLDFLAGS=$host_ldflags
3212 HOSTLIBS=$host_libs
3213 TARGET_EXEC=$target_exec
3214 TARGET_PATH=$target_path
3215 SDL_LIBS=$sdl_libs
3216 SDL_CFLAGS=$sdl_cflags
3217 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3218 EXTRALIBS=$extralibs
3219 INSTALL=install
3220 LIBTARGET=${LIBTARGET}
3221 SLIBNAME=${SLIBNAME}
3222 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3223 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3224 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3225 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3226 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3227 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3228 SAMPLES=$samples
3229 EOF
3230
3231 get_version(){
3232     name=$1
3233     file=$source_path/$2
3234     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3235     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3236     lcname=$(tolower $name)
3237     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3238     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3239 }
3240
3241 get_version LIBSWSCALE  libswscale/swscale.h
3242 get_version LIBPOSTPROC libpostproc/postprocess.h
3243 get_version LIBAVCODEC  libavcodec/avcodec.h
3244 get_version LIBAVCORE   libavcore/avcore.h
3245 get_version LIBAVDEVICE libavdevice/avdevice.h
3246 get_version LIBAVFORMAT libavformat/avformat.h
3247 get_version LIBAVUTIL   libavutil/avutil.h
3248 get_version LIBAVFILTER libavfilter/avfilter.h
3249
3250 cat > $TMPH <<EOF
3251 /* Automatically generated by configure - do not modify! */
3252 #ifndef FFMPEG_CONFIG_H
3253 #define FFMPEG_CONFIG_H
3254 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3255 #define FFMPEG_LICENSE "$(c_escape $license)"
3256 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3257 #define CC_TYPE "$cc_type"
3258 #define CC_VERSION $cc_version
3259 #define restrict $_restrict
3260 #define EXTERN_PREFIX "${extern_prefix}"
3261 #define EXTERN_ASM ${extern_prefix}
3262 #define SLIBSUF "$SLIBSUF"
3263 EOF
3264
3265 test -n "$malloc_prefix" &&
3266     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3267
3268 if enabled small || disabled optimizations; then
3269     echo "#undef  av_always_inline"  >> $TMPH
3270     if enabled small; then
3271         echo "#define av_always_inline inline"  >> $TMPH
3272     else
3273         echo "#define av_always_inline av_unused"  >> $TMPH
3274     fi
3275 fi
3276
3277 if enabled yasm; then
3278     append config_files $TMPASM
3279     printf '' >$TMPASM
3280 fi
3281
3282 print_config ARCH_   "$config_files" $ARCH_LIST
3283 print_config HAVE_   "$config_files" $HAVE_LIST
3284 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3285                                      $CONFIG_EXTRA      \
3286                                      $DECODER_LIST      \
3287                                      $ENCODER_LIST      \
3288                                      $HWACCEL_LIST      \
3289                                      $PARSER_LIST       \
3290                                      $BSF_LIST          \
3291                                      $DEMUXER_LIST      \
3292                                      $MUXER_LIST        \
3293                                      $FILTER_LIST       \
3294                                      $PROTOCOL_LIST     \
3295                                      $INDEV_LIST        \
3296                                      $OUTDEV_LIST       \
3297
3298 cat >>config.mak <<EOF
3299 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3300 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3301 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3302 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3303 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3304 EOF
3305
3306 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3307 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3308
3309 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3310 cp_if_changed $TMPH config.h
3311 touch .config
3312
3313 enabled yasm && cp_if_changed $TMPASM config.asm
3314
3315 cat > $TMPH <<EOF
3316 /* Generated by ffconf */
3317 #ifndef AVUTIL_AVCONFIG_H
3318 #define AVUTIL_AVCONFIG_H
3319 EOF
3320
3321 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3322
3323 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3324
3325 cp_if_changed $TMPH libavutil/avconfig.h
3326
3327 test -n "$WARNINGS" && printf "\n$WARNINGS"
3328
3329 # build pkg-config files
3330
3331 pkgconfig_generate(){
3332 name=$1
3333 shortname=${name#lib}${build_suffix}
3334 comment=$2
3335 version=$3
3336 libs=$4
3337 requires=$5
3338 enabled ${name#lib} || return 0
3339 cat <<EOF > $name/$name.pc
3340 prefix=$prefix
3341 exec_prefix=\${prefix}
3342 libdir=$libdir
3343 includedir=$incdir
3344
3345 Name: $name
3346 Description: $comment
3347 Version: $version
3348 Requires: $(enabled shared || echo $requires)
3349 Requires.private: $(enabled shared && echo $requires)
3350 Conflicts:
3351 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3352 Libs.private: $(enabled shared && echo $libs)
3353 Cflags: -I\${includedir}
3354 EOF
3355 cat <<EOF > $name/$name-uninstalled.pc
3356 prefix=
3357 exec_prefix=
3358 libdir=\${pcfiledir}
3359 includedir=${source_path}
3360
3361 Name: $name
3362 Description: $comment
3363 Version: $version
3364 Requires: $requires
3365 Conflicts:
3366 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3367 Cflags: -I\${includedir}
3368 EOF
3369 }
3370
3371 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3372 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3373 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3374 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3375 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3376 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3377 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3378 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"