mpegtsenc: Lift limit on PMT PID
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-postproc       disable libpostproc build
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code
110   --enable-vdpau           enable VDPAU code
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
115   --disable-everything     disable all components listed below
116   --disable-encoder=NAME   disable encoder NAME
117   --enable-encoder=NAME    enable encoder NAME
118   --disable-encoders       disable all encoders
119   --disable-decoder=NAME   disable decoder NAME
120   --enable-decoder=NAME    enable decoder NAME
121   --disable-decoders       disable all decoders
122   --disable-hwaccel=NAME   disable hwaccel NAME
123   --enable-hwaccel=NAME    enable hwaccel NAME
124   --disable-hwaccels       disable all hwaccels
125   --disable-muxer=NAME     disable muxer NAME
126   --enable-muxer=NAME      enable muxer NAME
127   --disable-muxers         disable all muxers
128   --disable-demuxer=NAME   disable demuxer NAME
129   --enable-demuxer=NAME    enable demuxer NAME
130   --disable-demuxers       disable all demuxers
131   --enable-parser=NAME     enable parser NAME
132   --disable-parser=NAME    disable parser NAME
133   --disable-parsers        disable all parsers
134   --enable-bsf=NAME        enable bitstream filter NAME
135   --disable-bsf=NAME       disable bitstream filter NAME
136   --disable-bsfs           disable all bitstream filters
137   --enable-protocol=NAME   enable protocol NAME
138   --disable-protocol=NAME  disable protocol NAME
139   --disable-protocols      disable all protocols
140   --disable-indev=NAME     disable input device NAME
141   --disable-outdev=NAME    disable output device NAME
142   --disable-indevs         disable input devices
143   --disable-outdevs        disable output devices
144   --disable-devices        disable all devices
145   --enable-filter=NAME     enable filter NAME
146   --disable-filter=NAME    disable filter NAME
147   --disable-filters        disable all filters
148   --list-decoders          show all available decoders
149   --list-encoders          show all available encoders
150   --list-hwaccels          show all available hardware accelerators
151   --list-muxers            show all available muxers
152   --list-demuxers          show all available demuxers
153   --list-parsers           show all available parsers
154   --list-protocols         show all available protocols
155   --list-bsfs              show all available bitstream filters
156   --list-indevs            show all available input devices
157   --list-outdevs           show all available output devices
158   --list-filters           show all available filters
159
160 External library support:
161   --enable-avisynth        enable reading of AVISynth script files [no]
162   --enable-bzlib           enable bzlib [autodetect]
163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
164   --enable-frei0r          enable frei0r video filtering
165   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
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-libfreetype     enable libfreetype [no]
174   --enable-libgsm          enable GSM support via libgsm [no]
175   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
176   --enable-libnut          enable NUT (de)muxing via libnut,
177                            native (de)muxer exists [no]
178   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
179   --enable-librtmp         enable RTMP[E] support via librtmp [no]
180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
181   --enable-libspeex        enable Speex encoding and decoding via libspeex [no]
182   --enable-libtheora       enable Theora encoding via libtheora [no]
183   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
184   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
185   --enable-libvorbis       enable Vorbis encoding via libvorbis,
186                            native implementation exists [no]
187   --enable-libvpx          enable VP8 support via libvpx [no]
188   --enable-libx264         enable H.264 encoding via x264 [no]
189   --enable-libxavs         enable AVS encoding via xavs [no]
190   --enable-libxvid         enable Xvid encoding via xvidcore,
191                            native MPEG-4/Xvid encoder exists [no]
192   --enable-mlib            enable Sun medialib [no]
193   --enable-zlib            enable zlib [autodetect]
194
195 Advanced options (experts only):
196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
197   --enable-cross-compile   assume a cross-compiler is used
198   --sysroot=PATH           root of cross-build tree
199   --sysinclude=PATH        location of cross-build system headers
200   --target-os=OS           compiler targets OS [$target_os]
201   --target-exec=CMD        command to run executables on target
202   --target-path=DIR        path to view of build directory on target
203   --nm=NM                  use nm tool
204   --ar=AR                  use archive tool AR [$ar_default]
205   --as=AS                  use assembler AS [$as_default]
206   --cc=CC                  use C compiler CC [$cc_default]
207   --ld=LD                  use linker LD
208   --host-cc=HOSTCC         use host C compiler HOSTCC
209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
211   --host-libs=HLIBS        use libs HLIBS when linking for host
212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
215   --extra-version=STRING   version string suffix []
216   --build-suffix=SUFFIX    library name suffix []
217   --arch=ARCH              select architecture [$arch]
218   --cpu=CPU                select the minimum required CPU (affects
219                            instruction selection, may crash on older CPUs)
220   --disable-asm            disable all assembler optimizations
221   --disable-altivec        disable AltiVec optimizations
222   --disable-amd3dnow       disable 3DNow! optimizations
223   --disable-amd3dnowext    disable 3DNow! extended optimizations
224   --disable-mmx            disable MMX optimizations
225   --disable-mmx2           disable MMX2 optimizations
226   --disable-sse            disable SSE optimizations
227   --disable-ssse3          disable SSSE3 optimizations
228   --disable-avx            disable AVX optimizations
229   --disable-armv5te        disable armv5te optimizations
230   --disable-armv6          disable armv6 optimizations
231   --disable-armv6t2        disable armv6t2 optimizations
232   --disable-armvfp         disable ARM VFP optimizations
233   --disable-iwmmxt         disable iwmmxt optimizations
234   --disable-mmi            disable MMI optimizations
235   --disable-neon           disable neon optimizations
236   --disable-vis            disable VIS optimizations
237   --disable-yasm           disable use of yasm assembler
238   --enable-pic             build position-independent code
239   --malloc-prefix=PFX      prefix malloc and related names with PFX
240   --enable-sram            allow use of on-chip SRAM
241   --disable-symver         disable symbol versioning
242
243 Developer options (useful when working on FFmpeg itself):
244   --disable-debug          disable debugging symbols
245   --enable-debug=LEVEL     set the debug level [$debuglevel]
246   --disable-optimizations  disable compiler optimizations
247   --enable-extra-warnings  enable more compiler warnings
248   --disable-stripping      disable stripping of executables and shared libraries
249   --samples=PATH           location of test samples for FATE, if not set use
250                            \$FATE_SAMPLES at make invocation time.
251
252 NOTE: Object files are built at the place where configure is launched.
253 EOF
254   exit 0
255 }
256
257 quotes='""'
258
259 log(){
260     echo "$@" >> $logfile
261 }
262
263 log_file(){
264     log BEGIN $1
265     pr -n -t $1 >> $logfile
266     log END $1
267 }
268
269 echolog(){
270     log "$@"
271     echo "$@"
272 }
273
274 warn(){
275     log "WARNING: $*"
276     WARNINGS="${WARNINGS}WARNING: $*\n"
277 }
278
279 die(){
280     echolog "$@"
281     cat <<EOF
282
283 If you think configure made a mistake, make sure you are using the latest
284 version from Git.  If the latest version fails, report the problem to the
285 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
286 EOF
287     if disabled logging; then
288         cat <<EOF
289 Rerun configure with logging enabled (do not use --disable-logging), and
290 include the log this produces with your report.
291 EOF
292     else
293 cat <<EOF
294 Include the log file "$logfile" produced by configure as this will help
295 solving the problem.
296 EOF
297     fi
298     exit 1
299 }
300
301 # Avoid locale weirdness, besides we really just want to translate ASCII.
302 toupper(){
303     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
304 }
305
306 tolower(){
307     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
308 }
309
310 c_escape(){
311     echo "$*" | sed 's/["\\]/\\\0/g'
312 }
313
314 sh_quote(){
315     v=$(echo "$1" | sed "s/'/'\\\\''/g")
316     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
317     echo "$v"
318 }
319
320 cleanws(){
321     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
322 }
323
324 filter(){
325     pat=$1
326     shift
327     for v; do
328         eval "case $v in $pat) echo $v ;; esac"
329     done
330 }
331
332 filter_out(){
333     pat=$1
334     shift
335     for v; do
336         eval "case $v in $pat) ;; *) echo $v ;; esac"
337     done
338 }
339
340 map(){
341     m=$1
342     shift
343     for v; do eval $m; done
344 }
345
346 set_all(){
347     value=$1
348     shift
349     for var in $*; do
350         eval $var=$value
351     done
352 }
353
354 set_weak(){
355     value=$1
356     shift
357     for var; do
358         eval : \${$var:=$value}
359     done
360 }
361
362 set_safe(){
363     var=$1
364     shift
365     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
366 }
367
368 get_safe(){
369     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
370 }
371
372 pushvar(){
373     for var in $*; do
374         eval level=\${${var}_level:=0}
375         eval ${var}_${level}="\$$var"
376         eval ${var}_level=$(($level+1))
377     done
378 }
379
380 popvar(){
381     for var in $*; do
382         eval level=\${${var}_level:-0}
383         test $level = 0 && continue
384         eval level=$(($level-1))
385         eval $var="\${${var}_${level}}"
386         eval ${var}_level=$level
387         eval unset ${var}_${level}
388     done
389 }
390
391 enable(){
392     set_all yes $*
393 }
394
395 disable(){
396     set_all no $*
397 }
398
399 enable_weak(){
400     set_weak yes $*
401 }
402
403 disable_weak(){
404     set_weak no $*
405 }
406
407 enable_safe(){
408     for var; do
409         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
410     done
411 }
412
413 disable_safe(){
414     for var; do
415         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
416     done
417 }
418
419 do_enable_deep(){
420     for var; do
421         enabled $var && continue
422         eval sel="\$${var}_select"
423         eval sgs="\$${var}_suggest"
424         pushvar var sgs
425         enable_deep $sel
426         popvar sgs
427         enable_deep_weak $sgs
428         popvar var
429     done
430 }
431
432 enable_deep(){
433     do_enable_deep $*
434     enable $*
435 }
436
437 enable_deep_weak(){
438     do_enable_deep $*
439     enable_weak $*
440 }
441
442 enabled(){
443     test "${1#!}" = "$1" && op== || op=!=
444     eval test "x\$${1#!}" $op "xyes"
445 }
446
447 disabled(){
448     test "${1#!}" = "$1" && op== || op=!=
449     eval test "x\$${1#!}" $op "xno"
450 }
451
452 enabled_all(){
453     for opt; do
454         enabled $opt || return 1
455     done
456 }
457
458 disabled_all(){
459     for opt; do
460         disabled $opt || return 1
461     done
462 }
463
464 enabled_any(){
465     for opt; do
466         enabled $opt && return 0
467     done
468 }
469
470 disabled_any(){
471     for opt; do
472         disabled $opt && return 0
473     done
474     return 1
475 }
476
477 set_default(){
478     for opt; do
479         eval : \${$opt:=\$${opt}_default}
480     done
481 }
482
483 is_in(){
484     value=$1
485     shift
486     for var in $*; do
487         [ $var = $value ] && return 0
488     done
489     return 1
490 }
491
492 check_deps(){
493     for cfg; do
494         cfg="${cfg#!}"
495         enabled ${cfg}_checking && die "Circular dependency for $cfg."
496         disabled ${cfg}_checking && continue
497         enable ${cfg}_checking
498
499         eval dep_all="\$${cfg}_deps"
500         eval dep_any="\$${cfg}_deps_any"
501         eval dep_sel="\$${cfg}_select"
502         eval dep_sgs="\$${cfg}_suggest"
503         eval dep_ifa="\$${cfg}_if"
504         eval dep_ifn="\$${cfg}_if_any"
505
506         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
507         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
508         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
509
510         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
511         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
512         enabled_all  $dep_all || disable $cfg
513         enabled_any  $dep_any || disable $cfg
514         disabled_any $dep_sel && disable $cfg
515
516         if enabled $cfg; then
517             eval dep_extralibs="\$${cfg}_extralibs"
518             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
519             enable_deep $dep_sel
520             enable_deep_weak $dep_sgs
521         fi
522
523         disable ${cfg}_checking
524     done
525 }
526
527 print_config_h(){
528     enabled $1 && v=1 || v=0
529     echo "#define $2 $v"
530 }
531
532 print_config_mak(){
533     enabled $1 && v= || v=!
534     echo "$v$2=yes"
535 }
536
537 print_config_asm(){
538     enabled $1 && echo "%define $2"
539 }
540
541 print_config(){
542     pfx=$1
543     files=$2
544     shift 2
545     for cfg; do
546         ucname="$(toupper $cfg)"
547         for f in $files; do
548             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
549         done
550     done
551 }
552
553 print_enabled(){
554     test "$1" = -n && end=" " && shift || end="\n"
555     suf=$1
556     shift
557     for v; do
558         enabled $v && printf "%s$end" ${v%$suf};
559     done
560 }
561
562 append(){
563     var=$1
564     shift
565     eval "$var=\"\$$var $*\""
566 }
567
568 prepend(){
569     var=$1
570     shift
571     eval "$var=\"$* \$$var\""
572 }
573
574 add_cppflags(){
575     append CPPFLAGS $($filter_cppflags "$@")
576 }
577
578 add_cflags(){
579     append CFLAGS $($filter_cflags "$@")
580 }
581
582 add_asflags(){
583     append ASFLAGS $($filter_asflags "$@")
584 }
585
586 add_ldflags(){
587     append LDFLAGS "$@"
588 }
589
590 add_extralibs(){
591     prepend extralibs "$@"
592 }
593
594 check_cmd(){
595     log "$@"
596     "$@" >> $logfile 2>&1
597 }
598
599 check_cc(){
600     log check_cc "$@"
601     cat > $TMPC
602     log_file $TMPC
603     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
604 }
605
606 check_cpp(){
607     log check_cpp "$@"
608     cat > $TMPC
609     log_file $TMPC
610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
611 }
612
613 check_as(){
614     log check_as "$@"
615     cat > $TMPC
616     log_file $TMPC
617     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
618 }
619
620 check_asm(){
621     log check_asm "$@"
622     name="$1"
623     code="$2"
624     shift 2
625     disable $name
626     check_as "$@" <<EOF && enable $name
627 void foo(void){ __asm__ volatile($code); }
628 EOF
629 }
630
631 check_yasm(){
632     log check_yasm "$@"
633     echo "$1" > $TMPS
634     log_file $TMPS
635     shift 1
636     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
637 }
638
639 check_ld(){
640     log check_ld "$@"
641     flags=''
642     libs=''
643     for f; do
644         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
645     done
646     check_cc $($filter_cflags $flags) || return
647     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
648 }
649
650 check_cppflags(){
651     log check_cppflags "$@"
652     set -- $($filter_cppflags "$@")
653     check_cc "$@" <<EOF && append CPPFLAGS "$@"
654 int x;
655 EOF
656 }
657
658 check_cflags(){
659     log check_cflags "$@"
660     set -- $($filter_cflags "$@")
661     check_cc "$@" <<EOF && append CFLAGS "$@"
662 int x;
663 EOF
664 }
665
666 test_ldflags(){
667     log test_ldflags "$@"
668     check_ld "$@" <<EOF
669 int main(void){ return 0; }
670 EOF
671 }
672
673 check_ldflags(){
674     log check_ldflags "$@"
675     test_ldflags "$@" && add_ldflags "$@"
676 }
677
678 check_header(){
679     log check_header "$@"
680     header=$1
681     shift
682     disable_safe $header
683     check_cpp "$@" <<EOF && enable_safe $header
684 #include <$header>
685 int x;
686 EOF
687 }
688
689 check_func(){
690     log check_func "$@"
691     func=$1
692     shift
693     disable $func
694     check_ld "$@" <<EOF && enable $func
695 extern int $func();
696 int main(void){ $func(); }
697 EOF
698 }
699
700 check_mathfunc(){
701     log check_mathfunc "$@"
702     func=$1
703     shift
704     disable $func
705     check_ld "$@" <<EOF && enable $func
706 #include <math.h>
707 float foo(float f) { return $func(f); }
708 int main(void){ return 0; }
709 EOF
710 }
711
712 check_func_headers(){
713     log check_func_headers "$@"
714     headers=$1
715     funcs=$2
716     shift 2
717     {
718         for hdr in $headers; do
719             echo "#include <$hdr>"
720         done
721         for func in $funcs; do
722             echo "long check_$func(void) { return (long) $func; }"
723         done
724         echo "int main(void) { return 0; }"
725     } | check_ld "$@" && enable $funcs && enable_safe $headers
726 }
727
728 check_cpp_condition(){
729     log check_cpp_condition "$@"
730     header=$1
731     condition=$2
732     shift 2
733     check_cpp $($filter_cppflags "$@") <<EOF
734 #include <$header>
735 #if !($condition)
736 #error "unsatisfied condition: $condition"
737 #endif
738 EOF
739 }
740
741 check_lib(){
742     log check_lib "$@"
743     header="$1"
744     func="$2"
745     shift 2
746     check_header $header && check_func $func "$@" && add_extralibs "$@"
747 }
748
749 check_lib2(){
750     log check_lib2 "$@"
751     headers="$1"
752     funcs="$2"
753     shift 2
754     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
755 }
756
757 check_pkg_config(){
758     log check_pkg_config "$@"
759     pkg="$1"
760     headers="$2"
761     funcs="$3"
762     shift 3
763     $pkg_config --exists $pkg 2>/dev/null || return
764     pkg_cflags=$($pkg_config --cflags $pkg)
765     pkg_libs=$($pkg_config --libs $pkg)
766     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
767         set_safe ${pkg}_cflags $pkg_cflags   &&
768         set_safe ${pkg}_libs   $pkg_libs
769 }
770
771 check_exec(){
772     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
773 }
774
775 check_exec_crash(){
776     code=$(cat)
777
778     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
779     # are safe but may not be available everywhere.  Thus we use
780     # raise(SIGTERM) instead.  The check is run in a subshell so we
781     # can redirect the "Terminated" message from the shell.  SIGBUS
782     # is not defined by standard C so it is used conditionally.
783
784     (check_exec "$@") >> $logfile 2>&1 <<EOF
785 #include <signal.h>
786 static void sighandler(int sig){
787     raise(SIGTERM);
788 }
789 int main(void){
790     signal(SIGILL, sighandler);
791     signal(SIGFPE, sighandler);
792     signal(SIGSEGV, sighandler);
793 #ifdef SIGBUS
794     signal(SIGBUS, sighandler);
795 #endif
796     { $code }
797 }
798 EOF
799 }
800
801 check_type(){
802     log check_type "$@"
803     headers=$1
804     type=$2
805     shift 2
806     disable_safe "$type"
807     incs=""
808     for hdr in $headers; do
809         incs="$incs
810 #include <$hdr>"
811     done
812     check_cc "$@" <<EOF && enable_safe "$type"
813 $incs
814 $type v;
815 EOF
816 }
817
818 check_struct(){
819     log check_type "$@"
820     headers=$1
821     struct=$2
822     member=$3
823     shift 3
824     disable_safe "${struct}_${member}"
825     incs=""
826     for hdr in $headers; do
827         incs="$incs
828 #include <$hdr>"
829     done
830     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
831 $incs
832 const void *p = &(($struct *)0)->$member;
833 EOF
834 }
835
836 require(){
837     name="$1"
838     header="$2"
839     func="$3"
840     shift 3
841     check_lib $header $func "$@" || die "ERROR: $name not found"
842 }
843
844 require2(){
845     name="$1"
846     headers="$2"
847     func="$3"
848     shift 3
849     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
850 }
851
852 require_pkg_config(){
853     pkg="$1"
854     check_pkg_config "$@" || die "ERROR: $pkg not found"
855     add_cflags    $(get_safe ${pkg}_cflags)
856     add_extralibs $(get_safe ${pkg}_libs)
857 }
858
859 check_host_cc(){
860     log check_host_cc "$@"
861     cat > $TMPC
862     log_file $TMPC
863     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
864 }
865
866 check_host_cflags(){
867     log check_host_cflags "$@"
868     check_host_cc "$@" <<EOF && append host_cflags "$@"
869 int x;
870 EOF
871 }
872
873 apply(){
874     file=$1
875     shift
876     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
877 }
878
879 cp_if_changed(){
880     cmp -s "$1" "$2" &&
881         echo "$2 is unchanged" ||
882         cp -f "$1" "$2"
883 }
884
885 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
886 # system-dependent things.
887
888 COMPONENT_LIST="
889     bsfs
890     decoders
891     demuxers
892     encoders
893     filters
894     hwaccels
895     indevs
896     muxers
897     outdevs
898     parsers
899     protocols
900 "
901
902 CONFIG_LIST="
903     $COMPONENT_LIST
904     aandct
905     ac3dsp
906     avcodec
907     avdevice
908     avfilter
909     avformat
910     avisynth
911     bzlib
912     crystalhd
913     dct
914     doc
915     dwt
916     dxva2
917     fastdiv
918     ffmpeg
919     ffplay
920     ffprobe
921     ffserver
922     fft
923     frei0r
924     golomb
925     gpl
926     gray
927     h264dsp
928     h264pred
929     hardcoded_tables
930     huffman
931     libaacplus
932     libcdio
933     libcelt
934     libdc1394
935     libdirac
936     libfaac
937     libfreetype
938     libgsm
939     libmp3lame
940     libnut
941     libopencore_amrnb
942     libopencore_amrwb
943     libopencv
944     libopenjpeg
945     librtmp
946     libschroedinger
947     libspeex
948     libtheora
949     libvo_aacenc
950     libvo_amrwbenc
951     libvorbis
952     libvpx
953     libx264
954     libxavs
955     libxvid
956     lpc
957     lsp
958     mdct
959     memalign_hack
960     mlib
961     mpegaudiodsp
962     network
963     nonfree
964     pic
965     postproc
966     rdft
967     rtpdec
968     runtime_cpudetect
969     shared
970     sinewin
971     small
972     sram
973     static
974     swscale
975     swscale_alpha
976     vaapi
977     vdpau
978     version3
979     x11grab
980     zlib
981 "
982
983 THREADS_LIST='
984     pthreads
985     w32threads
986 '
987
988 ARCH_LIST='
989     alpha
990     arm
991     avr32
992     avr32_ap
993     avr32_uc
994     bfin
995     ia64
996     m68k
997     mips
998     mips64
999     parisc
1000     ppc
1001     ppc64
1002     s390
1003     sh4
1004     sparc
1005     sparc64
1006     tomi
1007     x86
1008     x86_32
1009     x86_64
1010 '
1011
1012 ARCH_EXT_LIST='
1013     altivec
1014     amd3dnow
1015     amd3dnowext
1016     armv5te
1017     armv6
1018     armv6t2
1019     armvfp
1020     avx
1021     iwmmxt
1022     mmi
1023     mmx
1024     mmx2
1025     neon
1026     ppc4xx
1027     sse
1028     ssse3
1029     vfpv3
1030     vis
1031 '
1032
1033 HAVE_LIST_PUB='
1034     bigendian
1035     fast_unaligned
1036 '
1037
1038 HAVE_LIST="
1039     $ARCH_EXT_LIST
1040     $HAVE_LIST_PUB
1041     $THREADS_LIST
1042     aligned_stack
1043     alsa_asoundlib_h
1044     altivec_h
1045     arpa_inet_h
1046     attribute_may_alias
1047     attribute_packed
1048     bswap
1049     closesocket
1050     cmov
1051     dcbzl
1052     dev_bktr_ioctl_bt848_h
1053     dev_bktr_ioctl_meteor_h
1054     dev_ic_bt8xx_h
1055     dev_video_meteor_ioctl_meteor_h
1056     dev_video_bktr_ioctl_bt848_h
1057     dlfcn_h
1058     dlopen
1059     dos_paths
1060     ebp_available
1061     ebx_available
1062     exp2
1063     exp2f
1064     fast_64bit
1065     fast_clz
1066     fast_cmov
1067     fcntl
1068     fork
1069     getaddrinfo
1070     gethrtime
1071     GetProcessMemoryInfo
1072     GetProcessTimes
1073     getrusage
1074     gnu_as
1075     struct_rusage_ru_maxrss
1076     ibm_asm
1077     inet_aton
1078     inline_asm
1079     isatty
1080     kbhit
1081     ldbrx
1082     llrint
1083     llrintf
1084     local_aligned_16
1085     local_aligned_8
1086     localtime_r
1087     log2
1088     log2f
1089     loongson
1090     lrint
1091     lrintf
1092     lzo1x_999_compress
1093     machine_ioctl_bt848_h
1094     machine_ioctl_meteor_h
1095     malloc_h
1096     MapViewOfFile
1097     memalign
1098     mkstemp
1099     mmap
1100     pld
1101     posix_memalign
1102     round
1103     roundf
1104     sdl
1105     sdl_video_size
1106     setmode
1107     sndio_h
1108     socklen_t
1109     soundcard_h
1110     poll_h
1111     setrlimit
1112     strerror_r
1113     strtok_r
1114     struct_addrinfo
1115     struct_ipv6_mreq
1116     struct_sockaddr_in6
1117     struct_sockaddr_sa_len
1118     struct_sockaddr_storage
1119     symver
1120     symver_gnu_asm
1121     symver_asm_label
1122     sys_mman_h
1123     sys_resource_h
1124     sys_select_h
1125     sys_soundcard_h
1126     sys_videoio_h
1127     ten_operands
1128     termios_h
1129     threads
1130     trunc
1131     truncf
1132     vfp_args
1133     VirtualAlloc
1134     winsock2_h
1135     xform_asm
1136     xmm_clobbers
1137     yasm
1138 "
1139
1140 # options emitted with CONFIG_ prefix but not available on command line
1141 CONFIG_EXTRA="
1142     avutil
1143     gplv3
1144     lgplv3
1145 "
1146
1147 CMDLINE_SELECT="
1148     $ARCH_EXT_LIST
1149     $CONFIG_LIST
1150     $THREADS_LIST
1151     asm
1152     cross_compile
1153     debug
1154     extra_warnings
1155     logging
1156     optimizations
1157     stripping
1158     symver
1159     yasm
1160 "
1161
1162 PATHS_LIST='
1163     bindir
1164     datadir
1165     incdir
1166     libdir
1167     mandir
1168     prefix
1169     shlibdir
1170 '
1171
1172 CMDLINE_SET="
1173     $PATHS_LIST
1174     ar
1175     arch
1176     as
1177     build_suffix
1178     cc
1179     cpu
1180     cross_prefix
1181     dep_cc
1182     extra_version
1183     host_cc
1184     host_cflags
1185     host_ldflags
1186     host_libs
1187     host_os
1188     install
1189     ld
1190     logfile
1191     malloc_prefix
1192     nm
1193     pkg_config
1194     samples
1195     strip
1196     sysinclude
1197     sysroot
1198     target_exec
1199     target_os
1200     target_path
1201 "
1202
1203 CMDLINE_APPEND="
1204     extra_cflags
1205 "
1206
1207 # code dependency declarations
1208
1209 # architecture extensions
1210
1211 armv5te_deps="arm"
1212 armv6_deps="arm"
1213 armv6t2_deps="arm"
1214 armvfp_deps="arm"
1215 iwmmxt_deps="arm"
1216 neon_deps="arm"
1217 vfpv3_deps="armvfp"
1218
1219 mmi_deps="mips"
1220
1221 altivec_deps="ppc"
1222 ppc4xx_deps="ppc"
1223
1224 vis_deps="sparc"
1225
1226 x86_64_suggest="cmov fast_cmov"
1227 amd3dnow_deps="mmx"
1228 amd3dnowext_deps="amd3dnow"
1229 mmx_deps="x86"
1230 mmx2_deps="mmx"
1231 sse_deps="mmx"
1232 ssse3_deps="sse"
1233 avx_deps="ssse3"
1234
1235 aligned_stack_if_any="ppc x86"
1236 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1237 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1238 fast_unaligned_if_any="armv6 ppc x86"
1239
1240 need_memalign="altivec neon sse"
1241 inline_asm_deps="!tms470"
1242
1243 symver_if_any="symver_asm_label symver_gnu_asm"
1244
1245 # subsystems
1246 dct_select="rdft"
1247 mdct_select="fft"
1248 rdft_select="fft"
1249 mpegaudiodsp_select="dct"
1250
1251 # decoders / encoders / hardware accelerators
1252 aac_decoder_select="mdct sinewin"
1253 aac_encoder_select="mdct sinewin"
1254 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1255 ac3_decoder_select="mdct ac3dsp ac3_parser"
1256 ac3_encoder_select="mdct ac3dsp"
1257 ac3_fixed_encoder_select="mdct ac3dsp"
1258 alac_encoder_select="lpc"
1259 amrnb_decoder_select="lsp"
1260 amrwb_decoder_select="lsp"
1261 atrac1_decoder_select="mdct sinewin"
1262 atrac3_decoder_select="mdct"
1263 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1264 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1265 cavs_decoder_select="golomb"
1266 cook_decoder_select="mdct sinewin"
1267 cscd_decoder_suggest="zlib"
1268 dca_decoder_select="mdct"
1269 dnxhd_encoder_select="aandct"
1270 dxa_decoder_select="zlib"
1271 eac3_decoder_select="ac3_decoder"
1272 eac3_encoder_select="mdct ac3dsp"
1273 eamad_decoder_select="aandct"
1274 eatgq_decoder_select="aandct"
1275 eatqi_decoder_select="aandct"
1276 ffv1_decoder_select="golomb"
1277 flac_decoder_select="golomb"
1278 flac_encoder_select="golomb lpc"
1279 flashsv_decoder_select="zlib"
1280 flashsv_encoder_select="zlib"
1281 flashsv2_encoder_select="zlib"
1282 flv_decoder_select="h263_decoder"
1283 flv_encoder_select="h263_encoder"
1284 fraps_decoder_select="huffman"
1285 h261_encoder_select="aandct"
1286 h263_decoder_select="h263_parser"
1287 h263_encoder_select="aandct"
1288 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1289 h263i_decoder_select="h263_decoder"
1290 h263p_encoder_select="h263_encoder"
1291 h264_decoder_select="golomb h264dsp h264pred"
1292 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1293 h264_dxva2_hwaccel_deps="dxva2api_h"
1294 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1295 h264_vaapi_hwaccel_select="vaapi"
1296 h264_vdpau_decoder_select="vdpau h264_decoder"
1297 imc_decoder_select="fft mdct sinewin"
1298 jpegls_decoder_select="golomb"
1299 jpegls_encoder_select="golomb"
1300 ljpeg_encoder_select="aandct"
1301 loco_decoder_select="golomb"
1302 mjpeg_encoder_select="aandct"
1303 mlp_decoder_select="mlp_parser"
1304 mp1_decoder_select="mpegaudiodsp"
1305 mp2_decoder_select="mpegaudiodsp"
1306 mp3adu_decoder_select="mpegaudiodsp"
1307 mp3_decoder_select="mpegaudiodsp"
1308 mp3on4_decoder_select="mpegaudiodsp"
1309 mp1float_decoder_select="mpegaudiodsp"
1310 mp2float_decoder_select="mpegaudiodsp"
1311 mp3adufloat_decoder_select="mpegaudiodsp"
1312 mp3float_decoder_select="mpegaudiodsp"
1313 mp3on4float_decoder_select="mpegaudiodsp"
1314 mpeg1video_encoder_select="aandct"
1315 mpeg2video_encoder_select="aandct"
1316 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1317 mpeg4_encoder_select="h263_encoder"
1318 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1319 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1320 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1321 mpeg2_crystalhd_decoder_select="crystalhd"
1322 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1323 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1324 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1325 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1326 mpeg4_crystalhd_decoder_select="crystalhd"
1327 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1328 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1329 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1330 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1331 msmpeg4_crystalhd_decoder_select="crystalhd"
1332 msmpeg4v1_decoder_select="h263_decoder"
1333 msmpeg4v1_encoder_select="h263_encoder"
1334 msmpeg4v2_decoder_select="h263_decoder"
1335 msmpeg4v2_encoder_select="h263_encoder"
1336 msmpeg4v3_decoder_select="h263_decoder"
1337 msmpeg4v3_encoder_select="h263_encoder"
1338 nellymoser_decoder_select="mdct sinewin"
1339 nellymoser_encoder_select="mdct sinewin"
1340 png_decoder_select="zlib"
1341 png_encoder_select="zlib"
1342 qcelp_decoder_select="lsp"
1343 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1344 ra_144_encoder_select="lpc"
1345 rv10_decoder_select="h263_decoder"
1346 rv10_encoder_select="h263_encoder"
1347 rv20_decoder_select="h263_decoder"
1348 rv20_encoder_select="h263_encoder"
1349 rv30_decoder_select="golomb h264pred"
1350 rv40_decoder_select="golomb h264pred"
1351 shorten_decoder_select="golomb"
1352 sipr_decoder_select="lsp"
1353 snow_decoder_select="dwt"
1354 snow_encoder_select="aandct dwt"
1355 sonic_decoder_select="golomb"
1356 sonic_encoder_select="golomb"
1357 sonic_ls_encoder_select="golomb"
1358 svq1_encoder_select="aandct"
1359 svq3_decoder_select="golomb h264dsp h264pred"
1360 svq3_decoder_suggest="zlib"
1361 theora_decoder_select="vp3_decoder"
1362 tiff_decoder_suggest="zlib"
1363 tiff_encoder_suggest="zlib"
1364 truehd_decoder_select="mlp_decoder"
1365 tscc_decoder_select="zlib"
1366 twinvq_decoder_select="mdct lsp sinewin"
1367 vc1_decoder_select="h263_decoder"
1368 vc1_crystalhd_decoder_select="crystalhd"
1369 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1370 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1371 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1372 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1373 vorbis_decoder_select="mdct"
1374 vorbis_encoder_select="mdct"
1375 vp6_decoder_select="huffman"
1376 vp6a_decoder_select="vp6_decoder"
1377 vp6f_decoder_select="vp6_decoder"
1378 vp8_decoder_select="h264pred"
1379 wmapro_decoder_select="mdct sinewin"
1380 wmav1_decoder_select="mdct sinewin"
1381 wmav1_encoder_select="mdct sinewin"
1382 wmav2_decoder_select="mdct sinewin"
1383 wmav2_encoder_select="mdct sinewin"
1384 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1385 wmv1_decoder_select="h263_decoder"
1386 wmv1_encoder_select="h263_encoder"
1387 wmv2_decoder_select="h263_decoder"
1388 wmv2_encoder_select="h263_encoder"
1389 wmv3_decoder_select="vc1_decoder"
1390 wmv3_crystalhd_decoder_select="crystalhd"
1391 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1392 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1393 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1394 zlib_decoder_select="zlib"
1395 zlib_encoder_select="zlib"
1396 zmbv_decoder_select="zlib"
1397 zmbv_encoder_select="zlib"
1398
1399 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1400 vaapi_deps="va_va_h"
1401 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1402
1403 # parsers
1404 h264_parser_select="golomb h264dsp h264pred"
1405
1406 # external libraries
1407 libaacplus_encoder_deps="libaacplus"
1408 libcelt_decoder_deps="libcelt"
1409 libdirac_decoder_deps="libdirac !libschroedinger"
1410 libdirac_encoder_deps="libdirac"
1411 libfaac_encoder_deps="libfaac"
1412 libgsm_decoder_deps="libgsm"
1413 libgsm_encoder_deps="libgsm"
1414 libgsm_ms_decoder_deps="libgsm"
1415 libgsm_ms_encoder_deps="libgsm"
1416 libmp3lame_encoder_deps="libmp3lame"
1417 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1418 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1419 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1420 libopenjpeg_decoder_deps="libopenjpeg"
1421 libschroedinger_decoder_deps="libschroedinger"
1422 libschroedinger_encoder_deps="libschroedinger"
1423 libspeex_decoder_deps="libspeex"
1424 libspeex_encoder_deps="libspeex"
1425 libtheora_encoder_deps="libtheora"
1426 libvo_aacenc_encoder_deps="libvo_aacenc"
1427 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1428 libvorbis_encoder_deps="libvorbis"
1429 libvpx_decoder_deps="libvpx"
1430 libvpx_encoder_deps="libvpx"
1431 libx264_encoder_deps="libx264"
1432 libxavs_encoder_deps="libxavs"
1433 libxvid_encoder_deps="libxvid"
1434
1435 # demuxers / muxers
1436 ac3_demuxer_select="ac3_parser"
1437 asf_stream_muxer_select="asf_muxer"
1438 avisynth_demuxer_deps="avisynth"
1439 dirac_demuxer_select="dirac_parser"
1440 eac3_demuxer_select="ac3_parser"
1441 flac_demuxer_select="flac_parser"
1442 ipod_muxer_select="mov_muxer"
1443 libnut_demuxer_deps="libnut"
1444 libnut_muxer_deps="libnut"
1445 matroska_audio_muxer_select="matroska_muxer"
1446 matroska_demuxer_suggest="zlib bzlib"
1447 mov_demuxer_suggest="zlib"
1448 mp3_demuxer_select="mpegaudio_parser"
1449 mp4_muxer_select="mov_muxer"
1450 mpegtsraw_demuxer_select="mpegts_demuxer"
1451 mxf_d10_muxer_select="mxf_muxer"
1452 ogg_demuxer_select="golomb"
1453 psp_muxer_select="mov_muxer"
1454 rtp_demuxer_select="sdp_demuxer"
1455 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1456 rtsp_demuxer_select="http_protocol rtpdec"
1457 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1458 sap_demuxer_select="sdp_demuxer"
1459 sap_muxer_select="rtp_muxer rtp_protocol"
1460 sdp_demuxer_select="rtpdec"
1461 spdif_muxer_select="aac_parser"
1462 tg2_muxer_select="mov_muxer"
1463 tgp_muxer_select="mov_muxer"
1464 w64_demuxer_deps="wav_demuxer"
1465
1466 # indevs / outdevs
1467 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1468 alsa_outdev_deps="alsa_asoundlib_h"
1469 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1470 dshow_indev_deps="IBaseFilter"
1471 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1472 dv1394_indev_deps="dv1394 dv_demuxer"
1473 fbdev_indev_deps="linux_fb_h"
1474 jack_indev_deps="jack_jack_h sem_timedwait"
1475 libdc1394_indev_deps="libdc1394"
1476 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1477 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1478 sdl_outdev_deps="sdl"
1479 sndio_indev_deps="sndio_h"
1480 sndio_outdev_deps="sndio_h"
1481 v4l_indev_deps="linux_videodev_h"
1482 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1483 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1484 vfwcap_indev_extralibs="-lavicap32"
1485 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1486 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1487
1488 # protocols
1489 gopher_protocol_deps="network"
1490 http_protocol_deps="network"
1491 http_protocol_select="tcp_protocol"
1492 mmsh_protocol_select="http_protocol"
1493 mmst_protocol_deps="network"
1494 rtmp_protocol_select="tcp_protocol"
1495 rtp_protocol_select="udp_protocol"
1496 tcp_protocol_deps="network"
1497 udp_protocol_deps="network"
1498
1499 # filters
1500 blackframe_filter_deps="gpl"
1501 cropdetect_filter_deps="gpl"
1502 drawtext_filter_deps="libfreetype"
1503 frei0r_filter_deps="frei0r dlopen strtok_r"
1504 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1505 hqdn3d_filter_deps="gpl"
1506 movie_filter_deps="avcodec avformat"
1507 mp_filter_deps="gpl avcodec"
1508 negate_filter_deps="lut_filter"
1509 ocv_filter_deps="libopencv"
1510 scale_filter_deps="swscale"
1511 yadif_filter_deps="gpl"
1512
1513 # libraries
1514 avdevice_deps="avcodec avformat"
1515 avformat_deps="avcodec"
1516 postproc_deps="gpl"
1517
1518 # programs
1519 ffmpeg_deps="avcodec avformat swscale"
1520 ffmpeg_select="buffer_filter buffersink_filter"
1521 ffplay_deps="avcodec avformat swscale sdl"
1522 ffplay_select="rdft"
1523 ffprobe_deps="avcodec avformat"
1524 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1525 ffserver_extralibs='$ldl'
1526
1527 doc_deps="texi2html"
1528
1529 # tests
1530
1531 test_deps(){
1532     suf1=$1
1533     suf2=$2
1534     shift 2
1535     for v; do
1536         dep=${v%=*}
1537         tests=${v#*=}
1538         for name in ${tests}; do
1539             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1540         done
1541     done
1542 }
1543
1544 set_ne_test_deps(){
1545     eval ${1}_be_test_deps="bigendian"
1546     eval ${1}_le_test_deps="!bigendian"
1547 }
1548
1549 mxf_d10_test_deps="avfilter"
1550 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1551
1552 test_deps _encoder _decoder                                             \
1553     adpcm_g726=g726                                                     \
1554     adpcm_ima_qt                                                        \
1555     adpcm_ima_wav                                                       \
1556     adpcm_ms                                                            \
1557     adpcm_swf                                                           \
1558     adpcm_yamaha=adpcm_yam                                              \
1559     alac                                                                \
1560     asv1                                                                \
1561     asv2                                                                \
1562     bmp                                                                 \
1563     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1564     dvvideo="dv dv50"                                                   \
1565     ffv1                                                                \
1566     flac                                                                \
1567     flashsv                                                             \
1568     flv                                                                 \
1569     gif                                                                 \
1570     h261                                                                \
1571     h263="h263 h263p"                                                   \
1572     huffyuv                                                             \
1573     jpegls                                                              \
1574     mjpeg="jpg mjpeg ljpeg"                                             \
1575     mp2                                                                 \
1576     mpeg1video="mpeg mpeg1b"                                            \
1577     mpeg2video="mpeg2 mpeg2thread"                                      \
1578     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1579     msmpeg4v3=msmpeg4                                                   \
1580     msmpeg4v2                                                           \
1581     pbm=pbmpipe                                                         \
1582     pcx                                                                 \
1583     pgm="pgm pgmpipe"                                                   \
1584     png                                                                 \
1585     ppm="ppm ppmpipe"                                                   \
1586     rawvideo="rgb yuv"                                                  \
1587     roq                                                                 \
1588     rv10                                                                \
1589     rv20                                                                \
1590     sgi                                                                 \
1591     snow="snow snowll"                                                  \
1592     svq1                                                                \
1593     targa=tga                                                           \
1594     tiff                                                                \
1595     wmav1                                                               \
1596     wmav2                                                               \
1597     wmv1                                                                \
1598     wmv2                                                                \
1599
1600 test_deps _muxer _demuxer                                               \
1601     aiff                                                                \
1602     pcm_alaw=alaw                                                       \
1603     asf                                                                 \
1604     au                                                                  \
1605     avi                                                                 \
1606     dv=dv_fmt                                                           \
1607     ffm                                                                 \
1608     flv=flv_fmt                                                         \
1609     gxf                                                                 \
1610     matroska=mkv                                                        \
1611     mmf                                                                 \
1612     mov                                                                 \
1613     pcm_mulaw=mulaw                                                     \
1614     mxf="mxf mxf_d10"                                                   \
1615     nut                                                                 \
1616     ogg                                                                 \
1617     rawvideo=pixfmt                                                     \
1618     rm                                                                  \
1619     swf                                                                 \
1620     mpegts=ts                                                           \
1621     voc                                                                 \
1622     wav                                                                 \
1623     yuv4mpegpipe=yuv4mpeg                                               \
1624
1625 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1626 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1627
1628 set_ne_test_deps pixdesc
1629 set_ne_test_deps pixfmts_copy
1630 set_ne_test_deps pixfmts_crop
1631 set_ne_test_deps pixfmts_hflip
1632 set_ne_test_deps pixfmts_null
1633 set_ne_test_deps pixfmts_pad
1634 set_ne_test_deps pixfmts_scale
1635 set_ne_test_deps pixfmts_vflip
1636
1637 # default parameters
1638
1639 logfile="config.log"
1640
1641 # installation paths
1642 prefix_default="/usr/local"
1643 bindir_default='${prefix}/bin'
1644 datadir_default='${prefix}/share/ffmpeg'
1645 incdir_default='${prefix}/include'
1646 libdir_default='${prefix}/lib'
1647 mandir_default='${prefix}/share/man'
1648 shlibdir_default="$libdir_default"
1649
1650 # toolchain
1651 ar_default="ar"
1652 cc_default="gcc"
1653 cc_version=\"unknown\"
1654 host_cc_default="gcc"
1655 install="install"
1656 ln_s="ln -sf"
1657 nm_default="nm"
1658 objformat="elf"
1659 pkg_config_default=pkg-config
1660 ranlib="ranlib"
1661 strip_default="strip"
1662 yasmexe="yasm"
1663 nogas=":"
1664
1665 nm_opts='-g'
1666
1667 # machine
1668 arch_default=$(uname -m)
1669 cpu="generic"
1670
1671 # OS
1672 target_os_default=$(tolower $(uname -s))
1673 host_os=$target_os_default
1674
1675 # configurable options
1676 enable avcodec
1677 enable avdevice
1678 enable avfilter
1679 enable avformat
1680 enable avutil
1681 enable asm
1682 enable debug
1683 enable doc
1684 enable fastdiv
1685 enable ffmpeg
1686 enable ffplay
1687 enable ffprobe
1688 enable ffserver
1689 enable network
1690 enable optimizations
1691 enable postproc
1692 enable protocols
1693 enable static
1694 enable stripping
1695 enable swscale
1696 enable swscale_alpha
1697
1698 # build settings
1699 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1700 FFSERVERLDFLAGS=-Wl,-E
1701 LIBPREF="lib"
1702 LIBSUF=".a"
1703 FULLNAME='$(NAME)$(BUILDSUF)'
1704 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1705 SLIBPREF="lib"
1706 SLIBSUF=".so"
1707 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1708 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1709 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1710 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1711
1712 CC_O='-o $@'
1713
1714 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1715 host_libs='-lm'
1716
1717 target_path='$(CURDIR)'
1718
1719 # since the object filename is not given with the -MM flag, the compiler
1720 # is only able to print the basename, and we must add the path ourselves
1721 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1722 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1723
1724 # find source path
1725 if test -f configure; then
1726     source_path="$(pwd)"
1727     disable source_path_used
1728 else
1729     source_path=$(cd $(dirname "$0"); pwd)
1730     enable source_path_used
1731     echo "$source_path" | grep -q '[[:blank:]]' &&
1732         die "Out of tree builds are impossible with whitespace in source path."
1733     test -e "$source_path/config.h" &&
1734         die "Out of tree builds are impossible with config.h in source dir."
1735 fi
1736
1737 for v in "$@"; do
1738     r=${v#*=}
1739     l=${v%"$r"}
1740     r=$(sh_quote "$r")
1741     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1742 done
1743
1744 find_things(){
1745     thing=$1
1746     pattern=$2
1747     file=$source_path/$3
1748     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1749 }
1750
1751 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1752 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1753 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1754 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1755 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1756 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1757 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1758 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1759 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1760 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1761 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1762
1763 find_tests(){
1764     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1765 }
1766
1767 ACODEC_TESTS=$(find_tests acodec)
1768 VCODEC_TESTS=$(find_tests vsynth1)
1769 LAVF_TESTS=$(find_tests lavf)
1770 LAVFI_TESTS=$(find_tests lavfi)
1771 SEEK_TESTS=$(find_tests seek seek_)
1772
1773 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1774
1775 for n in $COMPONENT_LIST; do
1776     v=$(toupper ${n%s})_LIST
1777     eval enable \$$v
1778     eval ${n}_if_any="\$$v"
1779 done
1780
1781 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1782
1783 die_unknown(){
1784     echo "Unknown option \"$1\"."
1785     echo "See $0 --help for available options."
1786     exit 1
1787 }
1788
1789 show_list() {
1790     suffix=_$1
1791     shift
1792     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1793     exit 0
1794 }
1795
1796 for opt do
1797     optval="${opt#*=}"
1798     case "$opt" in
1799     --extra-ldflags=*) add_ldflags $optval
1800     ;;
1801     --extra-libs=*) add_extralibs $optval
1802     ;;
1803     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1804     ;;
1805     --enable-debug=*) debuglevel="$optval"
1806     ;;
1807     --disable-everything)
1808     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1809     ;;
1810     --enable-*=*|--disable-*=*)
1811     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1812     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1813     eval list=\$$(toupper $thing)_LIST
1814     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1815     $action $(filter "$name" $list)
1816     ;;
1817     --enable-?*|--disable-?*)
1818     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1819     if is_in $option $COMPONENT_LIST; then
1820         test $action = disable && action=unset
1821         eval $action \$$(toupper ${option%s})_LIST
1822     elif is_in $option $CMDLINE_SELECT; then
1823         $action $option
1824     else
1825         die_unknown $opt
1826     fi
1827     ;;
1828     --list-*)
1829         NAME="${opt#--list-}"
1830         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1831         NAME=${NAME%s}
1832         eval show_list $NAME \$$(toupper $NAME)_LIST
1833     ;;
1834     --help|-h) show_help
1835     ;;
1836     *)
1837     optname="${opt%%=*}"
1838     optname="${optname#--}"
1839     optname=$(echo "$optname" | sed 's/-/_/g')
1840     if is_in $optname $CMDLINE_SET; then
1841         eval $optname='$optval'
1842     elif is_in $optname $CMDLINE_APPEND; then
1843         append $optname "$optval"
1844     else
1845          die_unknown $opt
1846     fi
1847     ;;
1848     esac
1849 done
1850
1851 disabled logging && logfile=/dev/null
1852
1853 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1854 set >> $logfile
1855
1856 test -n "$cross_prefix" && enable cross_compile
1857
1858 if enabled cross_compile; then
1859     test -n "$arch" && test -n "$target_os" ||
1860         die "Must specify target arch and OS when cross-compiling"
1861 fi
1862
1863 set_default arch target_os
1864
1865 ar_default="${cross_prefix}${ar_default}"
1866 cc_default="${cross_prefix}${cc_default}"
1867 nm_default="${cross_prefix}${nm_default}"
1868 pkg_config_default="${cross_prefix}${pkg_config_default}"
1869 ranlib="${cross_prefix}${ranlib}"
1870 strip_default="${cross_prefix}${strip_default}"
1871
1872 sysinclude_default="${sysroot}/usr/include"
1873
1874 set_default cc nm pkg_config strip sysinclude
1875 enabled cross_compile || host_cc_default=$cc
1876 set_default host_cc
1877
1878 if ! $pkg_config --version >/dev/null 2>&1; then
1879     warn "$pkg_config not found, library detection may fail."
1880     pkg_config=false
1881 fi
1882
1883 exesuf() {
1884     case $1 in
1885         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1886     esac
1887 }
1888
1889 EXESUF=$(exesuf $target_os)
1890 HOSTEXESUF=$(exesuf $host_os)
1891
1892 # set temporary file name
1893 : ${TMPDIR:=$TEMPDIR}
1894 : ${TMPDIR:=$TMP}
1895 : ${TMPDIR:=/tmp}
1896
1897 if ! check_cmd mktemp -u XXXXXX; then
1898     # simple replacement for missing mktemp
1899     # NOT SAFE FOR GENERAL USE
1900     mktemp(){
1901         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1902     }
1903 fi
1904
1905 tmpfile(){
1906     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1907         (set -C; exec > $tmp) 2>/dev/null ||
1908         die "Unable to create temporary file in $TMPDIR."
1909     append TMPFILES $tmp
1910     eval $1=$tmp
1911 }
1912
1913 trap 'rm -f -- $TMPFILES' EXIT
1914
1915 tmpfile TMPC  .c
1916 tmpfile TMPE  $EXESUF
1917 tmpfile TMPH  .h
1918 tmpfile TMPO  .o
1919 tmpfile TMPS  .S
1920 tmpfile TMPV  .ver
1921 tmpfile TMPSH .sh
1922 tmpfile TMPASM .asm
1923
1924 unset -f mktemp
1925
1926 chmod +x $TMPE
1927
1928 # make sure we can execute files in $TMPDIR
1929 cat > $TMPSH 2>> $logfile <<EOF
1930 #! /bin/sh
1931 EOF
1932 chmod +x $TMPSH >> $logfile 2>&1
1933 if ! $TMPSH >> $logfile 2>&1; then
1934     cat <<EOF
1935 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1936 variable to another directory and make sure that it is not mounted noexec.
1937 EOF
1938     die "Sanity test failed."
1939 fi
1940
1941 filter_cflags=echo
1942 filter_cppflags=echo
1943 filter_asflags=echo
1944
1945 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1946     cc_type=llvm_gcc
1947     cc_version=__VERSION__
1948     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1949     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1950     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1951     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1952     speed_cflags='-O3'
1953     size_cflags='-Os'
1954 elif $cc -v 2>&1 | grep -qi ^gcc; then
1955     cc_type=gcc
1956     cc_version=__VERSION__
1957     gcc_version=$($cc --version | head -n1)
1958     gcc_basever=$($cc -dumpversion)
1959     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1960     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1961     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1962     if ! $cc -dumpversion | grep -q '^2\.'; then
1963         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1964         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1965     fi
1966     speed_cflags='-O3'
1967     size_cflags='-Os'
1968 elif $cc --version 2>/dev/null | grep -q Intel; then
1969     cc_type=icc
1970     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1971     cc_ident=$($cc --version | head -n1)
1972     icc_version=$($cc -dumpversion)
1973     CC_DEPFLAGS='-MMD'
1974     AS_DEPFLAGS='-MMD'
1975     speed_cflags='-O3'
1976     size_cflags='-Os'
1977     noopt_cflags='-O1'
1978 elif $cc -v 2>&1 | grep -q xlc; then
1979     cc_type=xlc
1980     cc_version="AV_STRINGIFY(__IBMC__)"
1981     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1982     speed_cflags='-O5'
1983     size_cflags='-O5 -qcompact'
1984 elif $cc -V 2>/dev/null | grep -q Compaq; then
1985     cc_type=ccc
1986     cc_version="AV_STRINGIFY(__DECC_VER)"
1987     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1988     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1989     debuglevel=3
1990     add_ldflags -Wl,-z,now # calls to libots crash without this
1991     speed_cflags='-fast'
1992     size_cflags='-O1'
1993 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1994     test -d "$sysroot" || die "No valid sysroot specified."
1995     cc_type=armcc
1996     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1997     cc_ident=$($cc --vsn | head -n1)
1998     armcc_conf="$PWD/armcc.conf"
1999     $cc --arm_linux_configure                 \
2000         --arm_linux_config_file="$armcc_conf" \
2001         --configure_sysroot="$sysroot"        \
2002         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2003         die "Error creating armcc configuration file."
2004     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2005     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2006     as_default="${cross_prefix}gcc"
2007     CC_DEPFLAGS='-MMD'
2008     AS_DEPFLAGS='-MMD'
2009     speed_cflags='-O3'
2010     size_cflags='-Os'
2011     filter_asflags="filter_out -W${armcc_opt}*"
2012 elif $cc -version 2>/dev/null | grep -q TMS470; then
2013     cc_type=tms470
2014     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2015     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2016     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2017     CC_O='-fr=$(@D)'
2018     as_default="${cross_prefix}gcc"
2019     ld_default="${cross_prefix}gcc"
2020     TMPO=$(basename $TMPC .c).o
2021     append TMPFILES $TMPO
2022     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2023     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2024     AS_DEPFLAGS='-MMD'
2025     speed_cflags='-O3 -mf=5'
2026     size_cflags='-O3 -mf=2'
2027     filter_cflags=tms470_flags
2028     tms470_flags(){
2029         for flag; do
2030             case $flag in
2031                 -march=*|-mcpu=*)
2032                     case "${flag#*=}" in
2033                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2034                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2035                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2036                         armv6*|arm11*)          echo -mv=6   ;;
2037                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2038                                                 echo -mv=5e  ;;
2039                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2040                     esac
2041                     ;;
2042                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2043                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2044                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2045                 -msoft-float)   echo --float_support=vfplib       ;;
2046                 -O[0-3]|-mf=*)  echo $flag                        ;;
2047                 -g)             echo -g -mn                       ;;
2048                 -pds=*)         echo $flag                        ;;
2049             esac
2050         done
2051     }
2052 elif $cc -v 2>&1 | grep -q clang; then
2053     cc_type=clang
2054     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2055         cc_version=__clang_version__ || cc_version=__VERSION__
2056     cc_ident=$($cc --version | head -n1)
2057     CC_DEPFLAGS='-MMD'
2058     AS_DEPFLAGS='-MMD'
2059     speed_cflags='-O3'
2060     size_cflags='-Os'
2061 elif $cc -V 2>&1 | grep -q Sun; then
2062     cc_type=suncc
2063     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2064     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2065     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2066     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2067     speed_cflags='-O5'
2068     size_cflags='-O5 -xspace'
2069     filter_cflags=suncc_flags
2070     suncc_flags(){
2071         for flag; do
2072             case $flag in
2073                 -march=*|-mcpu=*)
2074                     case "${flag#*=}" in
2075                         native)                   echo -xtarget=native       ;;
2076                         v9|niagara)               echo -xarch=sparc          ;;
2077                         ultrasparc)               echo -xarch=sparcvis       ;;
2078                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2079                         i586|pentium)             echo -xchip=pentium        ;;
2080                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2081                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2082                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2083                         pentium4*)          echo -xtarget=pentium4           ;;
2084                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2085                         *-sse3)             echo -xarch=sse3                 ;;
2086                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2087                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2088                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2089                         k8|opteron|athlon64|athlon-fx)
2090                                                   echo -xarch=sse2a          ;;
2091                         athlon*)                  echo -xarch=pentium_proa   ;;
2092                     esac
2093                     ;;
2094                 -std=c99)             echo -xc99              ;;
2095                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2096                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2097                 -W*,*)                echo $flag              ;;
2098                 -f*-*|-W*)                                    ;;
2099                 *)                    echo $flag              ;;
2100             esac
2101         done
2102     }
2103 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2104     cc_type=pathscale
2105     cc_version=__PATHSCALE__
2106     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2107     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2108     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2109     speed_cflags='-O2'
2110     size_cflags='-Os'
2111     filter_cflags='filter_out -Wdisabled-optimization'
2112 elif $cc -v 2>&1 | grep -q Open64; then
2113     cc_type=open64
2114     cc_version=__OPEN64__
2115     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2116     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2117     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2118     speed_cflags='-O2'
2119     size_cflags='-Os'
2120     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2121 fi
2122
2123 test -n "$cc_type" && enable $cc_type ||
2124     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2125
2126 : ${as_default:=$cc}
2127 : ${dep_cc_default:=$cc}
2128 : ${ld_default:=$cc}
2129 set_default ar as dep_cc ld
2130
2131 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2132 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2133
2134 add_cflags $extra_cflags
2135 add_asflags $extra_cflags
2136
2137 if test -n "$sysroot"; then
2138     case "$cc_type" in
2139         gcc|llvm_gcc|clang)
2140             add_cppflags --sysroot="$sysroot"
2141             add_ldflags --sysroot="$sysroot"
2142         ;;
2143         tms470)
2144             add_cppflags -I"$sysinclude"
2145             add_ldflags  --sysroot="$sysroot"
2146         ;;
2147     esac
2148 fi
2149
2150 if test "$cpu" = host; then
2151     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2152
2153     case "$cc_type" in
2154         gcc|llvm_gcc)
2155             check_native(){
2156                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2157                 sed -n "/$1=/{
2158                             s/.*$1=\\([^ ]*\\).*/\\1/
2159                             p
2160                             q
2161                         }" $TMPE
2162             }
2163             cpu=$(check_native -march || check_native -mcpu)
2164         ;;
2165     esac
2166
2167     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2168 fi
2169
2170 # Deal with common $arch aliases
2171 case "$arch" in
2172     arm*)
2173         arch="arm"
2174     ;;
2175     mips|mipsel|IP*)
2176         arch="mips"
2177     ;;
2178     mips64*)
2179         arch="mips"
2180         subarch="mips64"
2181     ;;
2182     parisc|hppa)
2183         arch="parisc"
2184     ;;
2185     parisc64|hppa64)
2186         arch="parisc"
2187         subarch="parisc64"
2188     ;;
2189     "Power Macintosh"|ppc|powerpc)
2190         arch="ppc"
2191     ;;
2192     ppc64|powerpc64)
2193         arch="ppc"
2194         subarch="ppc64"
2195     ;;
2196     s390|s390x)
2197         arch="s390"
2198     ;;
2199     sh4|sh)
2200         arch="sh4"
2201     ;;
2202     sun4u|sparc64)
2203         arch="sparc"
2204         subarch="sparc64"
2205     ;;
2206     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2207         arch="x86"
2208     ;;
2209 esac
2210
2211 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2212 enable $arch
2213
2214 # Add processor-specific flags
2215 if test "$cpu" = generic; then
2216     : do nothing
2217 elif enabled ppc; then
2218
2219     case $(tolower $cpu) in
2220         601|ppc601|powerpc601)
2221             cpuflags="-mcpu=601"
2222             disable altivec
2223         ;;
2224         603*|ppc603*|powerpc603*)
2225             cpuflags="-mcpu=603"
2226             disable altivec
2227         ;;
2228         604*|ppc604*|powerpc604*)
2229             cpuflags="-mcpu=604"
2230             disable altivec
2231         ;;
2232         g3|75*|ppc75*|powerpc75*)
2233             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2234             disable altivec
2235         ;;
2236         g4|745*|ppc745*|powerpc745*)
2237             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2238         ;;
2239         74*|ppc74*|powerpc74*)
2240             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2241         ;;
2242         g5|970|ppc970|powerpc970|power4*)
2243             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2244         ;;
2245         cell)
2246             cpuflags="-mcpu=cell"
2247             enable ldbrx
2248         ;;
2249         e500v2)
2250             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2251             disable altivec
2252         ;;
2253         e500)
2254             cpuflags="-mcpu=8540 -mhard-float"
2255             disable altivec
2256         ;;
2257     esac
2258
2259 elif enabled x86; then
2260
2261     case $cpu in
2262         i[345]86|pentium)
2263             cpuflags="-march=$cpu"
2264             disable mmx
2265         ;;
2266         # targets that do NOT support conditional mov (cmov)
2267         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2268             cpuflags="-march=$cpu"
2269             disable cmov
2270         ;;
2271         # targets that do support conditional mov (cmov)
2272         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2273             cpuflags="-march=$cpu"
2274             enable cmov
2275             enable fast_cmov
2276         ;;
2277         # targets that do support conditional mov but on which it's slow
2278         pentium4|pentium4m|prescott|nocona)
2279             cpuflags="-march=$cpu"
2280             enable cmov
2281             disable fast_cmov
2282         ;;
2283     esac
2284
2285 elif enabled sparc; then
2286
2287     case $cpu in
2288         niagara)
2289             cpuflags="-mcpu=$cpu"
2290             disable vis
2291         ;;
2292         sparc64)
2293             cpuflags="-mcpu=v9"
2294         ;;
2295     esac
2296
2297 elif enabled arm; then
2298
2299     case $cpu in
2300         armv*)
2301             cpuflags="-march=$cpu"
2302             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2303         ;;
2304         *)
2305             cpuflags="-mcpu=$cpu"
2306             case $cpu in
2307                 cortex-a*)                               subarch=armv7a  ;;
2308                 cortex-r*)                               subarch=armv7r  ;;
2309                 cortex-m*)                               subarch=armv7m  ;;
2310                 arm11*)                                  subarch=armv6   ;;
2311                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2312                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2313             esac
2314         ;;
2315     esac
2316
2317 elif enabled alpha; then
2318
2319     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2320
2321 elif enabled bfin; then
2322
2323     cpuflags="-mcpu=$cpu"
2324
2325 elif enabled mips; then
2326
2327     cpuflags="-march=$cpu"
2328
2329 elif enabled avr32; then
2330
2331     case $cpu in
2332         ap7[02]0[0-2])
2333             subarch="avr32_ap"
2334             cpuflags="-mpart=$cpu"
2335         ;;
2336         ap)
2337             subarch="avr32_ap"
2338             cpuflags="-march=$cpu"
2339         ;;
2340         uc3[ab]*)
2341             subarch="avr32_uc"
2342             cpuflags="-mcpu=$cpu"
2343         ;;
2344         uc)
2345             subarch="avr32_uc"
2346             cpuflags="-march=$cpu"
2347         ;;
2348     esac
2349
2350 fi
2351
2352 add_cflags $cpuflags
2353 add_asflags $cpuflags
2354
2355 # compiler sanity check
2356 check_exec <<EOF
2357 int main(void){ return 0; }
2358 EOF
2359 if test "$?" != 0; then
2360     echo "$cc is unable to create an executable file."
2361     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2362         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2363         echo "Only do this if you know what cross compiling means."
2364     fi
2365     die "C compiler test failed."
2366 fi
2367
2368 add_cppflags -D_ISOC99_SOURCE
2369 check_cflags -std=c99
2370 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2371 #include <stdlib.h>
2372 EOF
2373 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2374 #include <stdlib.h>
2375 EOF
2376
2377 check_host_cflags -std=c99
2378 check_host_cflags -Wall
2379
2380 case "$arch" in
2381     alpha|ia64|mips|parisc|sparc)
2382         spic=$shared
2383     ;;
2384     x86)
2385         subarch="x86_32"
2386         check_cc <<EOF && subarch="x86_64"
2387         int test[(int)sizeof(char*) - 7];
2388 EOF
2389         if test "$subarch" = "x86_64"; then
2390             spic=$shared
2391         fi
2392     ;;
2393 esac
2394
2395 enable $subarch
2396 enabled spic && enable pic
2397
2398 # OS specific
2399 case $target_os in
2400     haiku)
2401         prefix_default="/boot/common"
2402         network_extralibs="-lnetwork"
2403         host_libs=
2404         ;;
2405     sunos)
2406         FFSERVERLDFLAGS=""
2407         SHFLAGS='-shared -Wl,-h,$$(@F)'
2408         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2409         network_extralibs="-lsocket -lnsl"
2410         add_cppflags -D__EXTENSIONS__
2411         nm_opts='-P -g'
2412         ;;
2413     netbsd)
2414         disable symver
2415         oss_indev_extralibs="-lossaudio"
2416         oss_outdev_extralibs="-lossaudio"
2417         ;;
2418     openbsd)
2419         enable malloc_aligned
2420         # On OpenBSD 4.5. the compiler does not use PIC unless
2421         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2422         # however the generated executable will not do anything
2423         # (simply quits with exit-code 1, no crash, no output).
2424         # Thus explicitly enable PIC here.
2425         enable pic
2426         disable symver
2427         SHFLAGS='-shared'
2428         oss_indev_extralibs="-lossaudio"
2429         oss_outdev_extralibs="-lossaudio"
2430         ;;
2431     dragonfly)
2432         enable malloc_aligned
2433         disable symver
2434         ;;
2435     freebsd)
2436         enable malloc_aligned
2437         ;;
2438     bsd/os)
2439         add_extralibs -lpoll -lgnugetopt
2440         strip="strip -d"
2441         ;;
2442     darwin)
2443         enable malloc_aligned
2444         gas="gas-preprocessor.pl $cc"
2445         enabled ppc && add_asflags -force_cpusubtype_ALL
2446         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2447         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2448         strip="${strip} -x"
2449         add_ldflags -Wl,-dynamic,-search_paths_first
2450         SLIBSUF=".dylib"
2451         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2452         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2453         FFSERVERLDFLAGS=-Wl,-bind_at_load
2454         objformat="macho"
2455         enabled x86_64 && objformat="macho64"
2456         enabled_any pic shared ||
2457             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2458         ;;
2459     mingw32*)
2460         if test $target_os = "mingw32ce"; then
2461             disable network
2462         else
2463             target_os=mingw32
2464         fi
2465         LIBTARGET=i386
2466         if enabled x86_64; then
2467             enable malloc_aligned
2468             LIBTARGET=x64
2469         elif enabled arm; then
2470             LIBTARGET=arm-wince
2471         fi
2472         shlibdir_default="$bindir_default"
2473         SLIBPREF=""
2474         SLIBSUF=".dll"
2475         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2476         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2477         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2478         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2479             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2480             install -d "$(LIBDIR)"; \
2481             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2482         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2483         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'
2484         objformat="win32"
2485         enable dos_paths
2486         check_cflags -fno-common
2487         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2488                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2489                 die "ERROR: MinGW runtime version must be >= 3.15."
2490         add_cppflags -U__STRICT_ANSI__
2491         ;;
2492     cygwin*)
2493         target_os=cygwin
2494         shlibdir_default="$bindir_default"
2495         SLIBPREF="cyg"
2496         SLIBSUF=".dll"
2497         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2498         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2499         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2500         objformat="win32"
2501         enable dos_paths
2502         check_cflags -fno-common
2503         add_cppflags -U__STRICT_ANSI__
2504         ;;
2505     *-dos|freedos|opendos)
2506         network_extralibs="-lsocket"
2507         objformat="coff"
2508         enable dos_paths
2509         add_cppflags -U__STRICT_ANSI__
2510         ;;
2511     linux)
2512         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2513         enable dv1394
2514         ;;
2515     irix*)
2516         target_os=irix
2517         ranlib="echo ignoring ranlib"
2518         ;;
2519     os/2*)
2520         strip="lxlite -CS"
2521         ln_s="cp -f"
2522         objformat="aout"
2523         add_cppflags -D_GNU_SOURCE
2524         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2525         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2526         FFSERVERLDFLAGS=""
2527         LIBSUF="_s.a"
2528         SLIBPREF=""
2529         SLIBSUF=".dll"
2530         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2531         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2532         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2533           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2534           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2535           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2536           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2537           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2538         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2539           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2540         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2541         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2542         enable dos_paths
2543         ;;
2544     gnu/kfreebsd)
2545         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2546         ;;
2547     gnu)
2548         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2549         ;;
2550     qnx)
2551         add_cppflags -D_QNX_SOURCE
2552         network_extralibs="-lsocket"
2553         ;;
2554     symbian)
2555         SLIBSUF=".dll"
2556         enable dos_paths
2557         add_cflags --include=$sysinclude/gcce/gcce.h
2558         ;;
2559     none)
2560         ;;
2561     *)
2562         die "Unknown OS '$target_os'."
2563         ;;
2564 esac
2565
2566 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2567
2568 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2569
2570 set_default $PATHS_LIST
2571
2572 # we need to build at least one lib type
2573 if ! enabled_any static shared; then
2574     cat <<EOF
2575 At least one library type must be built.
2576 Specify --enable-static to build the static libraries or --enable-shared to
2577 build the shared libraries as well. To only build the shared libraries specify
2578 --disable-static in addition to --enable-shared.
2579 EOF
2580     exit 1;
2581 fi
2582
2583 disabled static && LIBNAME=""
2584
2585 die_license_disabled() {
2586     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2587 }
2588
2589 die_license_disabled gpl libx264
2590 die_license_disabled gpl libxavs
2591 die_license_disabled gpl libxvid
2592 die_license_disabled gpl x11grab
2593
2594 die_license_disabled nonfree libaacplus
2595 die_license_disabled nonfree libfaac
2596
2597 die_license_disabled version3 libopencore_amrnb
2598 die_license_disabled version3 libopencore_amrwb
2599 die_license_disabled version3 libvo_aacenc
2600 die_license_disabled version3 libvo_amrwbenc
2601
2602 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2603
2604 disabled optimizations || check_cflags -fomit-frame-pointer
2605
2606 enable_pic() {
2607     enable pic
2608     add_cppflags -DPIC
2609     add_cflags   -fPIC
2610     add_asflags  -fPIC
2611 }
2612
2613 enabled pic && enable_pic
2614
2615 check_cc <<EOF || die "Symbol mangling check failed."
2616 int ff_extern;
2617 EOF
2618 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2619 extern_prefix=${sym%%ff_extern*}
2620
2621 check_cc <<EOF && enable inline_asm
2622 void foo(void) { __asm__ volatile ("" ::); }
2623 EOF
2624
2625 _restrict=
2626 for restrict_keyword in restrict __restrict__ __restrict; do
2627     check_cc <<EOF && _restrict=$restrict_keyword && break
2628 void foo(char * $restrict_keyword p);
2629 EOF
2630 done
2631
2632 check_cc <<EOF && enable attribute_packed
2633 struct { int x; } __attribute__((packed)) x;
2634 EOF
2635
2636 check_cc <<EOF && enable attribute_may_alias
2637 union { int x; } __attribute__((may_alias)) x;
2638 EOF
2639
2640 check_cc <<EOF || die "endian test failed"
2641 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2642 EOF
2643 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2644
2645 if enabled alpha; then
2646
2647     check_cflags -mieee
2648
2649 elif enabled arm; then
2650
2651     check_cflags -marm
2652     nogas=die
2653
2654     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2655         enable vfp_args
2656     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2657         case "${cross_prefix:-$cc}" in
2658             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2659             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2660 __asm__ (".eabi_attribute 28, 1");
2661 int main(void) { return 0; }
2662 EOF
2663         esac
2664         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2665     fi
2666
2667     # We have to check if pld is a nop and disable it.
2668     check_asm pld '"pld [r0]"'
2669
2670     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2671     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2672     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2673     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2674     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2675     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2676     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2677
2678     enabled_all armv6t2 shared !pic && enable_pic
2679
2680 elif enabled mips; then
2681
2682     check_asm loongson '"dmult.g $1, $2, $3"'
2683     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2684
2685 elif enabled ppc; then
2686
2687     enable local_aligned_8 local_aligned_16
2688
2689     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2690     check_asm ibm_asm   '"add 0, 0, 0"'
2691     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2692     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2693
2694     # AltiVec flags: The FSF version of GCC differs from the Apple version
2695     if enabled altivec; then
2696         nogas=warn
2697         check_cflags -maltivec -mabi=altivec &&
2698         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2699         check_cflags -faltivec
2700
2701         # check if our compiler supports Motorola AltiVec C API
2702         check_cc <<EOF || disable altivec
2703 $inc_altivec_h
2704 int main(void) {
2705     vector signed int v1, v2, v3;
2706     v1 = vec_add(v2,v3);
2707     return 0;
2708 }
2709 EOF
2710
2711         # check if our compiler supports braces for vector declarations
2712         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2713 $inc_altivec_h
2714 int main (void) { (vector int) {1}; return 0; }
2715 EOF
2716     fi
2717
2718 elif enabled sparc; then
2719
2720     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2721         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2722
2723 elif enabled x86; then
2724
2725     enable local_aligned_8 local_aligned_16
2726
2727     # check whether EBP is available on x86
2728     # As 'i' is stored on the stack, this program will crash
2729     # if the base pointer is used to access it because the
2730     # base pointer is cleared in the inline assembly code.
2731     check_exec_crash <<EOF && enable ebp_available
2732     volatile int i=0;
2733     __asm__ volatile (
2734         "xorl %%ebp, %%ebp"
2735     ::: "%ebp");
2736     return i;
2737 EOF
2738
2739     # check whether EBX is available on x86
2740     check_asm ebx_available '""::"b"(0)' &&
2741         check_asm ebx_available '"":::"%ebx"'
2742
2743     # check whether xmm clobbers are supported
2744     check_asm xmm_clobbers '"":::"%xmm0"'
2745
2746     # check whether more than 10 operands are supported
2747     check_cc <<EOF && enable ten_operands
2748 int main(void) {
2749     int x=0;
2750     __asm__ volatile(
2751         ""
2752         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2753     );
2754     return 0;
2755 }
2756 EOF
2757
2758     # check whether binutils is new enough to compile SSSE3/MMX2
2759     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2760     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2761
2762     check_asm bswap '"bswap %%eax" ::: "%eax"'
2763
2764     if ! disabled_any asm mmx yasm; then
2765         if check_cmd $yasmexe --version; then
2766             enabled x86_64 && yasm_extra="-m amd64"
2767             yasm_debug="-g dwarf2"
2768         elif check_cmd nasm -v; then
2769             yasmexe=nasm
2770             yasm_debug="-g -F dwarf"
2771             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2772         fi
2773
2774         YASMFLAGS="-f $objformat $yasm_extra"
2775         enabled pic               && append YASMFLAGS "-DPIC"
2776         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2777         case "$objformat" in
2778             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2779         esac
2780
2781         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2782             die "yasm not found, use --disable-yasm for a crippled build"
2783         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2784     fi
2785
2786     case "$cpu" in
2787         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2788             disable fast_clz
2789         ;;
2790     esac
2791
2792 fi
2793
2794 if enabled asm; then
2795     as=${gas:=$as}
2796     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2797         $nogas "GNU assembler not found, install gas-preprocessor"
2798 fi
2799
2800 check_ldflags -Wl,--as-needed
2801
2802 if check_func dlopen; then
2803     ldl=
2804 elif check_func dlopen -ldl; then
2805     ldl=-ldl
2806 fi
2807
2808 if enabled network; then
2809     check_type "sys/types.h sys/socket.h" socklen_t
2810     check_type netdb.h "struct addrinfo"
2811     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2812     check_type netinet/in.h "struct sockaddr_in6"
2813     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2814     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2815     # Prefer arpa/inet.h over winsock2
2816     if check_header arpa/inet.h ; then
2817         check_func closesocket
2818     elif check_header winsock2.h ; then
2819         check_func_headers winsock2.h closesocket -lws2 && \
2820             network_extralibs="-lws2" || \
2821         { check_func_headers winsock2.h closesocket -lws2_32 && \
2822             network_extralibs="-lws2_32"; }
2823         check_type ws2tcpip.h socklen_t
2824         check_type ws2tcpip.h "struct addrinfo"
2825         check_type ws2tcpip.h "struct ipv6_mreq"
2826         check_type ws2tcpip.h "struct sockaddr_in6"
2827         check_type ws2tcpip.h "struct sockaddr_storage"
2828         check_struct winsock2.h "struct sockaddr" sa_len
2829     else
2830         disable network
2831     fi
2832 fi
2833
2834 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2835 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2836
2837 check_func  fcntl
2838 check_func  fork
2839 check_func  getaddrinfo $network_extralibs
2840 check_func  gethrtime
2841 check_func  getrusage
2842 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2843 check_func  inet_aton $network_extralibs
2844 check_func  isatty
2845 check_func  localtime_r
2846 check_func  ${malloc_prefix}memalign            && enable memalign
2847 check_func  mkstemp
2848 check_func  mmap
2849 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2850 check_func  setrlimit
2851 check_func  strerror_r
2852 check_func  strtok_r
2853 check_func_headers conio.h kbhit
2854 check_func_headers io.h setmode
2855 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2856 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2857 check_func_headers windows.h GetProcessTimes
2858 check_func_headers windows.h MapViewOfFile
2859 check_func_headers windows.h VirtualAlloc
2860
2861 check_header dlfcn.h
2862 check_header dxva2api.h
2863 check_header libcrystalhd/libcrystalhd_if.h
2864 check_header malloc.h
2865 check_header poll.h
2866 check_header sys/mman.h
2867 check_header sys/resource.h
2868 check_header sys/select.h
2869 check_header termios.h
2870 check_header vdpau/vdpau.h
2871 check_header vdpau/vdpau_x11.h
2872 check_header X11/extensions/XvMClib.h
2873
2874 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2875
2876 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2877 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2878
2879 # check for some common methods of building with pthread support
2880 # do this before the optional library checks as some of them require pthreads
2881 if ! disabled pthreads && ! enabled w32threads; then
2882     enable pthreads
2883     if check_func pthread_create; then
2884         :
2885     elif check_func pthread_create -pthread; then
2886         add_cflags -pthread
2887         add_extralibs -pthread
2888     elif check_func pthread_create -pthreads; then
2889         add_cflags -pthreads
2890         add_extralibs -pthreads
2891     elif check_func pthread_create -lpthreadGC2; then
2892         add_extralibs -lpthreadGC2
2893     elif ! check_lib pthread.h pthread_create -lpthread; then
2894         disable pthreads
2895     fi
2896 fi
2897
2898 for thread in $THREADS_LIST; do
2899     if enabled $thread; then
2900         test -n "$thread_type" &&
2901             die "ERROR: Only one thread type must be selected." ||
2902             thread_type="$thread"
2903     fi
2904 done
2905
2906 check_lib math.h sin -lm && LIBM="-lm"
2907 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2908 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2909
2910 check_mathfunc exp2
2911 check_mathfunc exp2f
2912 check_mathfunc llrint
2913 check_mathfunc llrintf
2914 check_mathfunc log2
2915 check_mathfunc log2f
2916 check_mathfunc lrint
2917 check_mathfunc lrintf
2918 check_mathfunc round
2919 check_mathfunc roundf
2920 check_mathfunc trunc
2921 check_mathfunc truncf
2922
2923 # these are off by default, so fail if requested and not available
2924 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2925 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2926 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2927 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
2928 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2929 enabled libdirac   && require_pkg_config dirac                          \
2930     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2931     "dirac_decoder_init dirac_encoder_init"
2932 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2933 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2934 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2935 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2936 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2937 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2938 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2939 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2940 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2941 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2942 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2943 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2944 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2945 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2946 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2947 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2948 enabled libvpx     && {
2949     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2950                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2951     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2952                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2953 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2954                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2955                         die "ERROR: libx264 version must be >= 0.115."; }
2956 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2957 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2958 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2959
2960 SDL_CONFIG="${cross_prefix}sdl-config"
2961 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2962     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2963     enable sdl &&
2964     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2965 else
2966   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2967     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2968     sdl_libs=$("${SDL_CONFIG}" --libs)
2969     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2970     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2971     enable sdl &&
2972     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2973   fi
2974 fi
2975 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2976
2977 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2978
2979 check_header linux/fb.h
2980 check_header linux/videodev.h
2981 check_header linux/videodev2.h
2982 check_header sys/videoio.h
2983
2984 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2985 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2986 # w32api 3.12 had it defined wrong
2987 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2988
2989 check_type "dshow.h" IBaseFilter
2990
2991 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2992 { check_header dev/bktr/ioctl_meteor.h &&
2993   check_header dev/bktr/ioctl_bt848.h; } ||
2994 { check_header machine/ioctl_meteor.h &&
2995   check_header machine/ioctl_bt848.h; } ||
2996 { check_header dev/video/meteor/ioctl_meteor.h &&
2997   check_header dev/video/bktr/ioctl_bt848.h; } ||
2998 check_header dev/ic/bt8xx.h
2999
3000 check_header sndio.h
3001 if check_struct sys/soundcard.h audio_buf_info bytes; then
3002     enable_safe sys/soundcard.h
3003 else
3004     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3005     #include <sys/soundcard.h>
3006     audio_buf_info abc;
3007 EOF
3008 fi
3009 check_header soundcard.h
3010
3011 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3012
3013 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3014
3015 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3016
3017 enabled x11grab                         &&
3018 check_header X11/Xlib.h                 &&
3019 check_header X11/extensions/XShm.h      &&
3020 check_header X11/extensions/Xfixes.h    &&
3021 check_func XOpenDisplay -lX11           &&
3022 check_func XShmCreateImage -lX11 -lXext &&
3023 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3024
3025 if ! disabled vaapi; then
3026     check_lib va/va.h vaInitialize -lva && {
3027         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3028         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3029     } || disable vaapi
3030 fi
3031
3032 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3033 check_cpp_condition \
3034     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3035     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3036       disable vdpau; }
3037 fi
3038
3039 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3040
3041 # add some useful compiler flags if supported
3042 check_cflags -Wdeclaration-after-statement
3043 check_cflags -Wall
3044 check_cflags -Wno-parentheses
3045 check_cflags -Wno-switch
3046 check_cflags -Wdisabled-optimization
3047 check_cflags -Wpointer-arith
3048 check_cflags -Wredundant-decls
3049 check_cflags -Wno-pointer-sign
3050 check_cflags -Wcast-qual
3051 check_cflags -Wwrite-strings
3052 check_cflags -Wtype-limits
3053 check_cflags -Wundef
3054 check_cflags -Wmissing-prototypes
3055 check_cflags -Wno-pointer-to-int-cast
3056 enabled extra_warnings && check_cflags -Winline
3057
3058 # add some linker flags
3059 check_ldflags -Wl,--warn-common
3060 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
3061 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3062
3063 echo "X{};" > $TMPV
3064 if test_ldflags -Wl,--version-script,$TMPV; then
3065     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3066     check_cc <<EOF && enable symver_asm_label
3067 void ff_foo(void) __asm__ ("av_foo@VERSION");
3068 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3069 EOF
3070     check_cc <<EOF && enable symver_gnu_asm
3071 __asm__(".symver ff_foo,av_foo@VERSION");
3072 void ff_foo(void) {}
3073 EOF
3074 fi
3075
3076 if enabled small; then
3077     add_cflags $size_cflags
3078 elif enabled optimizations; then
3079     add_cflags $speed_cflags
3080 else
3081     add_cflags $noopt_cflags
3082 fi
3083 check_cflags -fno-math-errno
3084 check_cflags -fno-signed-zeros
3085 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3086 int x;
3087 EOF
3088
3089
3090 if enabled icc; then
3091     # Just warnings, no remarks
3092     check_cflags -w1
3093     # -wd: Disable following warnings
3094     # 144, 167, 556: -Wno-pointer-sign
3095     # 1292: attribute "foo" ignored
3096     # 10006: ignoring unknown option -fno-signed-zeros
3097     # 10148: ignoring unknown option -Wno-parentheses
3098     # 10156: ignoring option '-W'; no argument required
3099     check_cflags -wd144,167,556,1292,10006,10148,10156
3100     # 11030: Warning unknown option --as-needed
3101     # 10156: ignoring option '-export'; no argument required
3102     check_ldflags -wd10156,11030
3103     # Allow to compile with optimizations
3104     check_ldflags -march=$cpu
3105     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3106     enable ebp_available
3107     if enabled x86_32; then
3108         test ${icc_version%%.*} -ge 11 && \
3109             check_cflags -falign-stack=maintain-16-byte || \
3110             disable aligned_stack
3111     fi
3112 elif enabled ccc; then
3113     # disable some annoying warnings
3114     add_cflags -msg_disable cvtu32to64
3115     add_cflags -msg_disable embedcomment
3116     add_cflags -msg_disable needconstext
3117     add_cflags -msg_disable nomainieee
3118     add_cflags -msg_disable ptrmismatch1
3119     add_cflags -msg_disable unreachcode
3120 elif enabled gcc; then
3121     check_cflags -fno-tree-vectorize
3122     check_cflags -Werror=implicit-function-declaration
3123     check_cflags -Werror=missing-prototypes
3124 elif enabled llvm_gcc; then
3125     check_cflags -mllvm -stack-alignment=16
3126 elif enabled clang; then
3127     check_cflags -mllvm -stack-alignment=16
3128     check_cflags -Qunused-arguments
3129 elif enabled armcc; then
3130     # 2523: use of inline assembler is deprecated
3131     add_cflags -W${armcc_opt},--diag_suppress=2523
3132     add_cflags -W${armcc_opt},--diag_suppress=1207
3133     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3134     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3135     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3136     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3137 elif enabled tms470; then
3138     add_cflags -pds=824 -pds=837
3139 elif enabled pathscale; then
3140     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3141 fi
3142
3143 enabled_any $THREADS_LIST      && enable threads
3144
3145 check_deps $CONFIG_LIST       \
3146            $CONFIG_EXTRA      \
3147            $HAVE_LIST         \
3148            $DECODER_LIST      \
3149            $ENCODER_LIST      \
3150            $HWACCEL_LIST      \
3151            $PARSER_LIST       \
3152            $BSF_LIST          \
3153            $DEMUXER_LIST      \
3154            $MUXER_LIST        \
3155            $FILTER_LIST       \
3156            $INDEV_LIST        \
3157            $OUTDEV_LIST       \
3158            $PROTOCOL_LIST     \
3159            $ACODEC_TESTS      \
3160            $VCODEC_TESTS      \
3161            $LAVF_TESTS        \
3162            $LAVFI_TESTS       \
3163            $SEEK_TESTS        \
3164
3165 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3166
3167 if test $target_os == "haiku"; then
3168     disable memalign
3169     disable posix_memalign
3170 fi
3171
3172 ! enabled_any memalign posix_memalign malloc_aligned &&
3173     enabled_any $need_memalign && enable memalign_hack
3174
3175 echo "install prefix            $prefix"
3176 echo "source path               $source_path"
3177 echo "C compiler                $cc"
3178 echo "ARCH                      $arch ($cpu)"
3179 if test "$build_suffix" != ""; then
3180     echo "build suffix              $build_suffix"
3181 fi
3182 if test "$extra_version" != ""; then
3183     echo "version string suffix     $extra_version"
3184 fi
3185 echo "big-endian                ${bigendian-no}"
3186 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3187 if enabled x86; then
3188     echo "${yasmexe}                      ${yasm-no}"
3189     echo "MMX enabled               ${mmx-no}"
3190     echo "MMX2 enabled              ${mmx2-no}"
3191     echo "3DNow! enabled            ${amd3dnow-no}"
3192     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3193     echo "SSE enabled               ${sse-no}"
3194     echo "SSSE3 enabled             ${ssse3-no}"
3195     echo "AVX enabled               ${avx-no}"
3196     echo "CMOV enabled              ${cmov-no}"
3197     echo "CMOV is fast              ${fast_cmov-no}"
3198     echo "EBX available             ${ebx_available-no}"
3199     echo "EBP available             ${ebp_available-no}"
3200     echo "10 operands supported     ${ten_operands-no}"
3201 fi
3202 if enabled arm; then
3203     echo "ARMv5TE enabled           ${armv5te-no}"
3204     echo "ARMv6 enabled             ${armv6-no}"
3205     echo "ARMv6T2 enabled           ${armv6t2-no}"
3206     echo "ARM VFP enabled           ${armvfp-no}"
3207     echo "IWMMXT enabled            ${iwmmxt-no}"
3208     echo "NEON enabled              ${neon-no}"
3209 fi
3210 if enabled mips; then
3211     echo "MMI enabled               ${mmi-no}"
3212 fi
3213 if enabled ppc; then
3214     echo "AltiVec enabled           ${altivec-no}"
3215     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3216     echo "dcbzl available           ${dcbzl-no}"
3217 fi
3218 if enabled sparc; then
3219     echo "VIS enabled               ${vis-no}"
3220 fi
3221 echo "debug symbols             ${debug-no}"
3222 echo "strip symbols             ${stripping-no}"
3223 echo "optimize for size         ${small-no}"
3224 echo "optimizations             ${optimizations-no}"
3225 echo "static                    ${static-no}"
3226 echo "shared                    ${shared-no}"
3227 echo "postprocessing support    ${postproc-no}"
3228 echo "new filter support        ${avfilter-no}"
3229 echo "network support           ${network-no}"
3230 echo "threading support         ${thread_type-no}"
3231 echo "SDL support               ${sdl-no}"
3232 echo "Sun medialib support      ${mlib-no}"
3233 echo "AVISynth enabled          ${avisynth-no}"
3234 echo "libcelt enabled           ${libcelt-no}"
3235 echo "frei0r enabled            ${frei0r-no}"
3236 echo "libdc1394 support         ${libdc1394-no}"
3237 echo "libdirac enabled          ${libdirac-no}"
3238 echo "libfaac enabled           ${libfaac-no}"
3239 echo "libaacplus enabled        ${libaacplus-no}"
3240 echo "libgsm enabled            ${libgsm-no}"
3241 echo "libmp3lame enabled        ${libmp3lame-no}"
3242 echo "libnut enabled            ${libnut-no}"
3243 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3244 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3245 echo "libopencv support         ${libopencv-no}"
3246 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3247 echo "librtmp enabled           ${librtmp-no}"
3248 echo "libschroedinger enabled   ${libschroedinger-no}"
3249 echo "libspeex enabled          ${libspeex-no}"
3250 echo "libtheora enabled         ${libtheora-no}"
3251 echo "libva enabled             ${vaapi-no}"
3252 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3253 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3254 echo "libvorbis enabled         ${libvorbis-no}"
3255 echo "libvpx enabled            ${libvpx-no}"
3256 echo "libx264 enabled           ${libx264-no}"
3257 echo "libxavs enabled           ${libxavs-no}"
3258 echo "libxvid enabled           ${libxvid-no}"
3259 echo "zlib enabled              ${zlib-no}"
3260 echo "bzlib enabled             ${bzlib-no}"
3261 echo
3262
3263 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3264     echo "Enabled ${type}s:"
3265     eval list=\$$(toupper $type)_LIST
3266     print_enabled '_*' $list | sort | pr -r -3 -t
3267     echo
3268 done
3269
3270 license="LGPL version 2.1 or later"
3271 if enabled nonfree; then
3272     license="nonfree and unredistributable"
3273 elif enabled gplv3; then
3274     license="GPL version 3 or later"
3275 elif enabled lgplv3; then
3276     license="LGPL version 3 or later"
3277 elif enabled gpl; then
3278     license="GPL version 2 or later"
3279 fi
3280
3281 echo "License: $license"
3282
3283 echo "Creating config.mak and config.h..."
3284
3285 # build tree in object directory if source path is different from current one
3286 if enabled source_path_used; then
3287     DIRS="
3288         doc
3289         libavcodec
3290         libavcodec/$arch
3291         libavcodec/mlib
3292         libavdevice
3293         libavfilter
3294         libavfilter/$arch
3295         libavfilter/libmpcodecs
3296         libavfilter/libmpcodecs/libvo
3297         libavformat
3298         libavutil
3299         libavutil/$arch
3300         libpostproc
3301         libswscale
3302         libswscale/$arch
3303         libswscale/mlib
3304         tests
3305         tools
3306     "
3307     FILES="
3308         Makefile
3309         common.mak
3310         subdir.mak
3311         doc/texi2pod.pl
3312         libavcodec/Makefile
3313         libavcodec/${arch}/Makefile
3314         libavdevice/Makefile
3315         libavfilter/Makefile
3316         libavfilter/${arch}/Makefile
3317         libavformat/Makefile
3318         libavutil/Makefile
3319         libpostproc/Makefile
3320         libswscale/Makefile
3321     "
3322     map 'mkdir -p $v' $DIRS;
3323     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3324 fi
3325
3326 enabled stripping || strip="echo skipping strip"
3327
3328 config_files="$TMPH config.mak"
3329
3330 cat > config.mak <<EOF
3331 # Automatically generated by configure - do not modify!
3332 ifndef FFMPEG_CONFIG_MAK
3333 FFMPEG_CONFIG_MAK=1
3334 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3335 prefix=$prefix
3336 LIBDIR=\$(DESTDIR)$libdir
3337 SHLIBDIR=\$(DESTDIR)$shlibdir
3338 INCDIR=\$(DESTDIR)$incdir
3339 BINDIR=\$(DESTDIR)$bindir
3340 DATADIR=\$(DESTDIR)$datadir
3341 MANDIR=\$(DESTDIR)$mandir
3342 SRC_PATH="$source_path"
3343 SRC_PATH_BARE=$source_path
3344 CC_IDENT=$cc_ident
3345 ARCH=$arch
3346 CC=$cc
3347 AS=$as
3348 LD=$ld
3349 DEPCC=$dep_cc
3350 YASM=$yasmexe
3351 YASMDEP=$yasmexe
3352 AR=$ar
3353 RANLIB=$ranlib
3354 CP=cp -p
3355 LN_S=$ln_s
3356 STRIP=$strip
3357 CPPFLAGS=$CPPFLAGS
3358 CFLAGS=$CFLAGS
3359 ASFLAGS=$ASFLAGS
3360 CC_O=$CC_O
3361 LDFLAGS=$LDFLAGS
3362 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3363 SHFLAGS=$SHFLAGS
3364 YASMFLAGS=$YASMFLAGS
3365 BUILDSUF=$build_suffix
3366 FULLNAME=$FULLNAME
3367 LIBPREF=$LIBPREF
3368 LIBSUF=$LIBSUF
3369 LIBNAME=$LIBNAME
3370 SLIBPREF=$SLIBPREF
3371 SLIBSUF=$SLIBSUF
3372 EXESUF=$EXESUF
3373 EXTRA_VERSION=$extra_version
3374 DEPFLAGS=$DEPFLAGS
3375 CCDEP=$CCDEP
3376 ASDEP=$ASDEP
3377 CC_DEPFLAGS=$CC_DEPFLAGS
3378 AS_DEPFLAGS=$AS_DEPFLAGS
3379 HOSTCC=$host_cc
3380 HOSTCFLAGS=$host_cflags
3381 HOSTEXESUF=$HOSTEXESUF
3382 HOSTLDFLAGS=$host_ldflags
3383 HOSTLIBS=$host_libs
3384 TARGET_EXEC=$target_exec
3385 TARGET_PATH=$target_path
3386 SDL_LIBS=$sdl_libs
3387 SDL_CFLAGS=$sdl_cflags
3388 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3389 EXTRALIBS=$extralibs
3390 INSTALL=$install
3391 LIBTARGET=${LIBTARGET}
3392 SLIBNAME=${SLIBNAME}
3393 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3394 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3395 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3396 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3397 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3398 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3399 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3400 NOREDZONE_FLAGS=$noredzone_flags
3401 EOF
3402
3403 get_version(){
3404     name=$1
3405     file=$source_path/$2
3406     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3407     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3408     lcname=$(tolower $name)
3409     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3410     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3411 }
3412
3413 get_version LIBSWSCALE  libswscale/swscale.h
3414 get_version LIBPOSTPROC libpostproc/postprocess.h
3415 get_version LIBAVCODEC  libavcodec/version.h
3416 get_version LIBAVDEVICE libavdevice/avdevice.h
3417 get_version LIBAVFORMAT libavformat/version.h
3418 get_version LIBAVUTIL   libavutil/avutil.h
3419 get_version LIBAVFILTER libavfilter/avfilter.h
3420
3421 cat > $TMPH <<EOF
3422 /* Automatically generated by configure - do not modify! */
3423 #ifndef FFMPEG_CONFIG_H
3424 #define FFMPEG_CONFIG_H
3425 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3426 #define FFMPEG_LICENSE "$(c_escape $license)"
3427 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3428 #define CC_TYPE "$cc_type"
3429 #define CC_VERSION $cc_version
3430 #define restrict $_restrict
3431 #define EXTERN_PREFIX "${extern_prefix}"
3432 #define EXTERN_ASM ${extern_prefix}
3433 #define SLIBSUF "$SLIBSUF"
3434 EOF
3435
3436 test -n "$malloc_prefix" &&
3437     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3438
3439 if enabled small || disabled optimizations; then
3440     echo "#undef  av_always_inline"  >> $TMPH
3441     if enabled small; then
3442         echo "#define av_always_inline inline"  >> $TMPH
3443     else
3444         echo "#define av_always_inline av_unused"  >> $TMPH
3445     fi
3446 fi
3447
3448 if enabled yasm; then
3449     append config_files $TMPASM
3450     printf '' >$TMPASM
3451 fi
3452
3453 print_config ARCH_   "$config_files" $ARCH_LIST
3454 print_config HAVE_   "$config_files" $HAVE_LIST
3455 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3456                                      $CONFIG_EXTRA      \
3457                                      $DECODER_LIST      \
3458                                      $ENCODER_LIST      \
3459                                      $HWACCEL_LIST      \
3460                                      $PARSER_LIST       \
3461                                      $BSF_LIST          \
3462                                      $DEMUXER_LIST      \
3463                                      $MUXER_LIST        \
3464                                      $FILTER_LIST       \
3465                                      $PROTOCOL_LIST     \
3466                                      $INDEV_LIST        \
3467                                      $OUTDEV_LIST       \
3468
3469 cat >>config.mak <<EOF
3470 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3471 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3472 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3473 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3474 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3475 EOF
3476
3477 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3478 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3479
3480 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3481 cp_if_changed $TMPH config.h
3482 touch .config
3483
3484 enabled yasm && cp_if_changed $TMPASM config.asm
3485
3486 cat > $TMPH <<EOF
3487 /* Generated by ffconf */
3488 #ifndef AVUTIL_AVCONFIG_H
3489 #define AVUTIL_AVCONFIG_H
3490 EOF
3491
3492 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3493
3494 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3495
3496 cp_if_changed $TMPH libavutil/avconfig.h
3497
3498 test -n "$WARNINGS" && printf "\n$WARNINGS"
3499
3500 # build pkg-config files
3501
3502 pkgconfig_generate(){
3503 name=$1
3504 shortname=${name#lib}${build_suffix}
3505 comment=$2
3506 version=$3
3507 libs=$4
3508 requires=$5
3509 enabled ${name#lib} || return 0
3510 cat <<EOF > $name/$name.pc
3511 prefix=$prefix
3512 exec_prefix=\${prefix}
3513 libdir=$libdir
3514 includedir=$incdir
3515
3516 Name: $name
3517 Description: $comment
3518 Version: $version
3519 Requires: $(enabled shared || echo $requires)
3520 Requires.private: $(enabled shared && echo $requires)
3521 Conflicts:
3522 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3523 Libs.private: $(enabled shared && echo $libs)
3524 Cflags: -I\${includedir}
3525 EOF
3526 cat <<EOF > $name/$name-uninstalled.pc
3527 prefix=
3528 exec_prefix=
3529 libdir=\${pcfiledir}
3530 includedir=${source_path}
3531
3532 Name: $name
3533 Description: $comment
3534 Version: $version
3535 Requires: $requires
3536 Conflicts:
3537 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3538 Cflags: -I\${includedir}
3539 EOF
3540 }
3541
3542 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3543 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3544 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3545 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3546 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3547 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3548 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"