Merge remote-tracking branch 'qatar/master'
[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   --disable-vaapi          disable VAAPI code
110   --disable-vdpau          disable 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-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167   --enable-libopencv       enable video filtering via libopencv [no]
168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
169                            and libraw1394 [no]
170   --enable-libdirac        enable Dirac support via libdirac [no]
171   --enable-libfaac         enable FAAC support via libfaac [no]
172   --enable-libfreetype     enable libfreetype [no]
173   --enable-libgsm          enable GSM support via libgsm [no]
174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
175   --enable-libnut          enable NUT (de)muxing via libnut,
176                            native (de)muxer exists [no]
177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
180   --enable-libspeex        enable Speex decoding via libspeex [no]
181   --enable-libtheora       enable Theora encoding via libtheora [no]
182   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
183   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
185                            native implementation exists [no]
186   --enable-libvpx          enable VP8 support via libvpx [no]
187   --enable-libx264         enable H.264 encoding via x264 [no]
188   --enable-libxavs         enable AVS encoding via xavs [no]
189   --enable-libxvid         enable Xvid encoding via xvidcore,
190                            native MPEG-4/Xvid encoder exists [no]
191   --enable-mlib            enable Sun medialib [no]
192   --enable-zlib            enable zlib [autodetect]
193
194 Advanced options (experts only):
195   --source-path=PATH       path to source code [$source_path]
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     libcelt
932     libdc1394
933     libdirac
934     libfaac
935     libfreetype
936     libgsm
937     libmp3lame
938     libnut
939     libopencore_amrnb
940     libopencore_amrwb
941     libopencv
942     libopenjpeg
943     librtmp
944     libschroedinger
945     libspeex
946     libtheora
947     libvo_aacenc
948     libvo_amrwbenc
949     libvorbis
950     libvpx
951     libx264
952     libxavs
953     libxvid
954     lpc
955     lsp
956     mdct
957     memalign_hack
958     mlib
959     mpegaudiodsp
960     network
961     nonfree
962     pic
963     postproc
964     rdft
965     rtpdec
966     runtime_cpudetect
967     shared
968     sinewin
969     small
970     sram
971     static
972     swscale
973     swscale_alpha
974     vaapi
975     vdpau
976     version3
977     x11grab
978     zlib
979 "
980
981 THREADS_LIST='
982     pthreads
983     w32threads
984 '
985
986 ARCH_LIST='
987     alpha
988     arm
989     avr32
990     avr32_ap
991     avr32_uc
992     bfin
993     ia64
994     m68k
995     mips
996     mips64
997     parisc
998     ppc
999     ppc64
1000     s390
1001     sh4
1002     sparc
1003     sparc64
1004     tomi
1005     x86
1006     x86_32
1007     x86_64
1008 '
1009
1010 ARCH_EXT_LIST='
1011     altivec
1012     amd3dnow
1013     amd3dnowext
1014     armv5te
1015     armv6
1016     armv6t2
1017     armvfp
1018     avx
1019     iwmmxt
1020     mmi
1021     mmx
1022     mmx2
1023     neon
1024     ppc4xx
1025     sse
1026     ssse3
1027     vfpv3
1028     vis
1029 '
1030
1031 HAVE_LIST_PUB='
1032     bigendian
1033     fast_unaligned
1034 '
1035
1036 HAVE_LIST="
1037     $ARCH_EXT_LIST
1038     $HAVE_LIST_PUB
1039     $THREADS_LIST
1040     aligned_stack
1041     alsa_asoundlib_h
1042     altivec_h
1043     arpa_inet_h
1044     attribute_may_alias
1045     attribute_packed
1046     bswap
1047     closesocket
1048     cmov
1049     dcbzl
1050     dev_bktr_ioctl_bt848_h
1051     dev_bktr_ioctl_meteor_h
1052     dev_ic_bt8xx_h
1053     dev_video_meteor_ioctl_meteor_h
1054     dev_video_bktr_ioctl_bt848_h
1055     dlfcn_h
1056     dlopen
1057     dos_paths
1058     ebp_available
1059     ebx_available
1060     exp2
1061     exp2f
1062     fast_64bit
1063     fast_clz
1064     fast_cmov
1065     fcntl
1066     fork
1067     getaddrinfo
1068     gethrtime
1069     GetProcessMemoryInfo
1070     GetProcessTimes
1071     getrusage
1072     gnu_as
1073     struct_rusage_ru_maxrss
1074     ibm_asm
1075     inet_aton
1076     inline_asm
1077     isatty
1078     kbhit
1079     ldbrx
1080     llrint
1081     llrintf
1082     local_aligned_16
1083     local_aligned_8
1084     localtime_r
1085     log2
1086     log2f
1087     loongson
1088     lrint
1089     lrintf
1090     lzo1x_999_compress
1091     machine_ioctl_bt848_h
1092     machine_ioctl_meteor_h
1093     malloc_h
1094     MapViewOfFile
1095     memalign
1096     mkstemp
1097     mmap
1098     pld
1099     posix_memalign
1100     round
1101     roundf
1102     sdl
1103     sdl_video_size
1104     setmode
1105     sndio_h
1106     socklen_t
1107     soundcard_h
1108     poll_h
1109     setrlimit
1110     strerror_r
1111     strtok_r
1112     struct_addrinfo
1113     struct_ipv6_mreq
1114     struct_sockaddr_in6
1115     struct_sockaddr_sa_len
1116     struct_sockaddr_storage
1117     symver
1118     symver_gnu_asm
1119     symver_asm_label
1120     sys_mman_h
1121     sys_resource_h
1122     sys_select_h
1123     sys_soundcard_h
1124     sys_videoio_h
1125     ten_operands
1126     termios_h
1127     threads
1128     trunc
1129     truncf
1130     vfp_args
1131     VirtualAlloc
1132     winsock2_h
1133     xform_asm
1134     xmm_clobbers
1135     yasm
1136 "
1137
1138 # options emitted with CONFIG_ prefix but not available on command line
1139 CONFIG_EXTRA="
1140     avutil
1141     gplv3
1142     lgplv3
1143 "
1144
1145 CMDLINE_SELECT="
1146     $ARCH_EXT_LIST
1147     $CONFIG_LIST
1148     $THREADS_LIST
1149     asm
1150     cross_compile
1151     debug
1152     extra_warnings
1153     logging
1154     optimizations
1155     stripping
1156     symver
1157     yasm
1158 "
1159
1160 PATHS_LIST='
1161     bindir
1162     datadir
1163     incdir
1164     libdir
1165     mandir
1166     prefix
1167     shlibdir
1168 '
1169
1170 CMDLINE_SET="
1171     $PATHS_LIST
1172     ar
1173     arch
1174     as
1175     build_suffix
1176     cc
1177     cpu
1178     cross_prefix
1179     dep_cc
1180     extra_version
1181     host_cc
1182     host_cflags
1183     host_ldflags
1184     host_libs
1185     host_os
1186     install
1187     ld
1188     logfile
1189     malloc_prefix
1190     nm
1191     pkg_config
1192     samples
1193     source_path
1194     strip
1195     sysinclude
1196     sysroot
1197     target_exec
1198     target_os
1199     target_path
1200 "
1201
1202 CMDLINE_APPEND="
1203     extra_cflags
1204 "
1205
1206 # code dependency declarations
1207
1208 # architecture extensions
1209
1210 armv5te_deps="arm"
1211 armv6_deps="arm"
1212 armv6t2_deps="arm"
1213 armvfp_deps="arm"
1214 iwmmxt_deps="arm"
1215 neon_deps="arm"
1216 vfpv3_deps="armvfp"
1217
1218 mmi_deps="mips"
1219
1220 altivec_deps="ppc"
1221 ppc4xx_deps="ppc"
1222
1223 vis_deps="sparc"
1224
1225 x86_64_suggest="cmov fast_cmov"
1226 amd3dnow_deps="mmx"
1227 amd3dnowext_deps="amd3dnow"
1228 mmx_deps="x86"
1229 mmx2_deps="mmx"
1230 sse_deps="mmx"
1231 ssse3_deps="sse"
1232 avx_deps="ssse3"
1233
1234 aligned_stack_if_any="ppc x86"
1235 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1236 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1237 fast_unaligned_if_any="armv6 ppc x86"
1238
1239 need_memalign="altivec neon sse"
1240 inline_asm_deps="!tms470"
1241
1242 symver_if_any="symver_asm_label symver_gnu_asm"
1243
1244 # subsystems
1245 dct_select="rdft"
1246 mdct_select="fft"
1247 rdft_select="fft"
1248 mpegaudiodsp_select="dct"
1249
1250 # decoders / encoders / hardware accelerators
1251 aac_decoder_select="mdct sinewin"
1252 aac_encoder_select="mdct sinewin"
1253 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1254 ac3_decoder_select="mdct ac3dsp ac3_parser"
1255 ac3_encoder_select="mdct ac3dsp"
1256 ac3_fixed_encoder_select="mdct ac3dsp"
1257 alac_encoder_select="lpc"
1258 amrnb_decoder_select="lsp"
1259 amrwb_decoder_select="lsp"
1260 atrac1_decoder_select="mdct sinewin"
1261 atrac3_decoder_select="mdct"
1262 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1263 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1264 cavs_decoder_select="golomb"
1265 cook_decoder_select="mdct sinewin"
1266 cscd_decoder_suggest="zlib"
1267 dca_decoder_select="mdct"
1268 dnxhd_encoder_select="aandct"
1269 dxa_decoder_select="zlib"
1270 eac3_decoder_select="ac3_decoder"
1271 eac3_encoder_select="mdct ac3dsp"
1272 eamad_decoder_select="aandct"
1273 eatgq_decoder_select="aandct"
1274 eatqi_decoder_select="aandct"
1275 ffv1_decoder_select="golomb"
1276 flac_decoder_select="golomb"
1277 flac_encoder_select="golomb lpc"
1278 flashsv_decoder_select="zlib"
1279 flashsv_encoder_select="zlib"
1280 flashsv2_encoder_select="zlib"
1281 flv_decoder_select="h263_decoder"
1282 flv_encoder_select="h263_encoder"
1283 fraps_decoder_select="huffman"
1284 h261_encoder_select="aandct"
1285 h263_decoder_select="h263_parser"
1286 h263_encoder_select="aandct"
1287 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1288 h263i_decoder_select="h263_decoder"
1289 h263p_encoder_select="h263_encoder"
1290 h264_decoder_select="golomb h264dsp h264pred"
1291 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1292 h264_dxva2_hwaccel_deps="dxva2api_h"
1293 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1294 h264_vaapi_hwaccel_select="vaapi"
1295 h264_vdpau_decoder_select="vdpau h264_decoder"
1296 imc_decoder_select="fft mdct sinewin"
1297 jpegls_decoder_select="golomb"
1298 jpegls_encoder_select="golomb"
1299 ljpeg_encoder_select="aandct"
1300 loco_decoder_select="golomb"
1301 mjpeg_encoder_select="aandct"
1302 mlp_decoder_select="mlp_parser"
1303 mp1_decoder_select="mpegaudiodsp"
1304 mp2_decoder_select="mpegaudiodsp"
1305 mp3adu_decoder_select="mpegaudiodsp"
1306 mp3_decoder_select="mpegaudiodsp"
1307 mp3on4_decoder_select="mpegaudiodsp"
1308 mp1float_decoder_select="mpegaudiodsp"
1309 mp2float_decoder_select="mpegaudiodsp"
1310 mp3adufloat_decoder_select="mpegaudiodsp"
1311 mp3float_decoder_select="mpegaudiodsp"
1312 mp3on4float_decoder_select="mpegaudiodsp"
1313 mpeg1video_encoder_select="aandct"
1314 mpeg2video_encoder_select="aandct"
1315 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1316 mpeg4_encoder_select="h263_encoder"
1317 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1318 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1319 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1320 mpeg2_crystalhd_decoder_select="crystalhd"
1321 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1322 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1323 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1324 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1325 mpeg4_crystalhd_decoder_select="crystalhd"
1326 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1327 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1328 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1329 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1330 msmpeg4_crystalhd_decoder_select="crystalhd"
1331 msmpeg4v1_decoder_select="h263_decoder"
1332 msmpeg4v1_encoder_select="h263_encoder"
1333 msmpeg4v2_decoder_select="h263_decoder"
1334 msmpeg4v2_encoder_select="h263_encoder"
1335 msmpeg4v3_decoder_select="h263_decoder"
1336 msmpeg4v3_encoder_select="h263_encoder"
1337 nellymoser_decoder_select="mdct sinewin"
1338 nellymoser_encoder_select="mdct sinewin"
1339 png_decoder_select="zlib"
1340 png_encoder_select="zlib"
1341 qcelp_decoder_select="lsp"
1342 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1343 ra_144_encoder_select="lpc"
1344 rv10_decoder_select="h263_decoder"
1345 rv10_encoder_select="h263_encoder"
1346 rv20_decoder_select="h263_decoder"
1347 rv20_encoder_select="h263_encoder"
1348 rv30_decoder_select="golomb h264pred"
1349 rv40_decoder_select="golomb h264pred"
1350 shorten_decoder_select="golomb"
1351 sipr_decoder_select="lsp"
1352 snow_decoder_select="dwt"
1353 snow_encoder_select="aandct dwt"
1354 sonic_decoder_select="golomb"
1355 sonic_encoder_select="golomb"
1356 sonic_ls_encoder_select="golomb"
1357 svq1_encoder_select="aandct"
1358 svq3_decoder_select="golomb h264dsp h264pred"
1359 svq3_decoder_suggest="zlib"
1360 theora_decoder_select="vp3_decoder"
1361 tiff_decoder_suggest="zlib"
1362 tiff_encoder_suggest="zlib"
1363 truehd_decoder_select="mlp_decoder"
1364 tscc_decoder_select="zlib"
1365 twinvq_decoder_select="mdct lsp sinewin"
1366 vc1_decoder_select="h263_decoder"
1367 vc1_crystalhd_decoder_select="crystalhd"
1368 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1369 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1370 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1371 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1372 vorbis_decoder_select="mdct"
1373 vorbis_encoder_select="mdct"
1374 vp6_decoder_select="huffman"
1375 vp6a_decoder_select="vp6_decoder"
1376 vp6f_decoder_select="vp6_decoder"
1377 vp8_decoder_select="h264pred"
1378 wmapro_decoder_select="mdct sinewin"
1379 wmav1_decoder_select="mdct sinewin"
1380 wmav1_encoder_select="mdct sinewin"
1381 wmav2_decoder_select="mdct sinewin"
1382 wmav2_encoder_select="mdct sinewin"
1383 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1384 wmv1_decoder_select="h263_decoder"
1385 wmv1_encoder_select="h263_encoder"
1386 wmv2_decoder_select="h263_decoder"
1387 wmv2_encoder_select="h263_encoder"
1388 wmv3_decoder_select="vc1_decoder"
1389 wmv3_crystalhd_decoder_select="crystalhd"
1390 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1391 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1392 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1393 zlib_decoder_select="zlib"
1394 zlib_encoder_select="zlib"
1395 zmbv_decoder_select="zlib"
1396 zmbv_encoder_select="zlib"
1397
1398 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1399 vaapi_deps="va_va_h"
1400 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1401
1402 # parsers
1403 h264_parser_select="golomb h264dsp h264pred"
1404
1405 # external libraries
1406 libcelt_decoder_deps="libcelt"
1407 libdirac_decoder_deps="libdirac !libschroedinger"
1408 libdirac_encoder_deps="libdirac"
1409 libfaac_encoder_deps="libfaac"
1410 libgsm_decoder_deps="libgsm"
1411 libgsm_encoder_deps="libgsm"
1412 libgsm_ms_decoder_deps="libgsm"
1413 libgsm_ms_encoder_deps="libgsm"
1414 libmp3lame_encoder_deps="libmp3lame"
1415 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1416 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1417 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1418 libopenjpeg_decoder_deps="libopenjpeg"
1419 libschroedinger_decoder_deps="libschroedinger"
1420 libschroedinger_encoder_deps="libschroedinger"
1421 libspeex_decoder_deps="libspeex"
1422 libtheora_encoder_deps="libtheora"
1423 libvo_aacenc_encoder_deps="libvo_aacenc"
1424 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1425 libvorbis_encoder_deps="libvorbis"
1426 libvpx_decoder_deps="libvpx"
1427 libvpx_encoder_deps="libvpx"
1428 libx264_encoder_deps="libx264"
1429 libxavs_encoder_deps="libxavs"
1430 libxvid_encoder_deps="libxvid"
1431
1432 # demuxers / muxers
1433 ac3_demuxer_select="ac3_parser"
1434 asf_stream_muxer_select="asf_muxer"
1435 avisynth_demuxer_deps="avisynth"
1436 dirac_demuxer_select="dirac_parser"
1437 eac3_demuxer_select="ac3_parser"
1438 flac_demuxer_select="flac_parser"
1439 ipod_muxer_select="mov_muxer"
1440 libnut_demuxer_deps="libnut"
1441 libnut_muxer_deps="libnut"
1442 matroska_audio_muxer_select="matroska_muxer"
1443 matroska_demuxer_suggest="zlib bzlib"
1444 mov_demuxer_suggest="zlib"
1445 mp3_demuxer_select="mpegaudio_parser"
1446 mp4_muxer_select="mov_muxer"
1447 mpegtsraw_demuxer_select="mpegts_demuxer"
1448 mxf_d10_muxer_select="mxf_muxer"
1449 ogg_demuxer_select="golomb"
1450 psp_muxer_select="mov_muxer"
1451 rtp_demuxer_select="sdp_demuxer"
1452 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1453 rtsp_demuxer_select="http_protocol rtpdec"
1454 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1455 sap_demuxer_select="sdp_demuxer"
1456 sap_muxer_select="rtp_muxer rtp_protocol"
1457 sdp_demuxer_select="rtpdec"
1458 spdif_muxer_select="aac_parser"
1459 tg2_muxer_select="mov_muxer"
1460 tgp_muxer_select="mov_muxer"
1461 w64_demuxer_deps="wav_demuxer"
1462
1463 # indevs / outdevs
1464 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1465 alsa_outdev_deps="alsa_asoundlib_h"
1466 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1467 dshow_indev_deps="IBaseFilter"
1468 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1469 dv1394_indev_deps="dv1394 dv_demuxer"
1470 fbdev_indev_deps="linux_fb_h"
1471 jack_indev_deps="jack_jack_h sem_timedwait"
1472 libdc1394_indev_deps="libdc1394"
1473 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1474 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1475 sdl_outdev_deps="sdl"
1476 sndio_indev_deps="sndio_h"
1477 sndio_outdev_deps="sndio_h"
1478 v4l_indev_deps="linux_videodev_h"
1479 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1480 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1481 vfwcap_indev_extralibs="-lavicap32"
1482 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1483 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1484
1485 # protocols
1486 gopher_protocol_deps="network"
1487 http_protocol_deps="network"
1488 http_protocol_select="tcp_protocol"
1489 mmsh_protocol_select="http_protocol"
1490 mmst_protocol_deps="network"
1491 rtmp_protocol_select="tcp_protocol"
1492 rtp_protocol_select="udp_protocol"
1493 tcp_protocol_deps="network"
1494 udp_protocol_deps="network pthreads"
1495
1496 # filters
1497 blackframe_filter_deps="gpl"
1498 cropdetect_filter_deps="gpl"
1499 drawtext_filter_deps="libfreetype"
1500 frei0r_filter_deps="frei0r dlopen strtok_r"
1501 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1502 hqdn3d_filter_deps="gpl"
1503 movie_filter_deps="avcodec avformat"
1504 mp_filter_deps="gpl avcodec"
1505 ocv_filter_deps="libopencv"
1506 scale_filter_deps="swscale"
1507 yadif_filter_deps="gpl"
1508
1509 # libraries
1510 avdevice_deps="avcodec avformat"
1511 avformat_deps="avcodec"
1512 postproc_deps="gpl"
1513
1514 # programs
1515 ffmpeg_deps="avcodec avformat swscale"
1516 ffmpeg_select="buffer_filter"
1517 ffplay_deps="avcodec avformat swscale sdl"
1518 ffplay_select="rdft"
1519 ffprobe_deps="avcodec avformat"
1520 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1521 ffserver_extralibs='$ldl'
1522
1523 doc_deps="texi2html"
1524
1525 # tests
1526
1527 test_deps(){
1528     suf1=$1
1529     suf2=$2
1530     shift 2
1531     for v; do
1532         dep=${v%=*}
1533         tests=${v#*=}
1534         for name in ${tests}; do
1535             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1536         done
1537     done
1538 }
1539
1540 set_ne_test_deps(){
1541     eval ${1}_be_test_deps="bigendian"
1542     eval ${1}_le_test_deps="!bigendian"
1543 }
1544
1545 test_deps _encoder _decoder                                             \
1546     adpcm_g726=g726                                                     \
1547     adpcm_ima_qt                                                        \
1548     adpcm_ima_wav                                                       \
1549     adpcm_ms                                                            \
1550     adpcm_swf                                                           \
1551     adpcm_yamaha=adpcm_yam                                              \
1552     alac                                                                \
1553     asv1                                                                \
1554     asv2                                                                \
1555     bmp                                                                 \
1556     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1557     dvvideo="dv dv50"                                                   \
1558     ffv1                                                                \
1559     flac                                                                \
1560     flashsv                                                             \
1561     flv                                                                 \
1562     gif                                                                 \
1563     h261                                                                \
1564     h263="h263 h263p"                                                   \
1565     huffyuv                                                             \
1566     jpegls                                                              \
1567     mjpeg="jpg mjpeg ljpeg"                                             \
1568     mp2                                                                 \
1569     mpeg1video="mpeg mpeg1b"                                            \
1570     mpeg2video="mpeg2 mpeg2thread"                                      \
1571     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1572     msmpeg4v3=msmpeg4                                                   \
1573     msmpeg4v2                                                           \
1574     pbm=pbmpipe                                                         \
1575     pcx                                                                 \
1576     pgm="pgm pgmpipe"                                                   \
1577     png                                                                 \
1578     ppm="ppm ppmpipe"                                                   \
1579     rawvideo="rgb yuv"                                                  \
1580     roq                                                                 \
1581     rv10                                                                \
1582     rv20                                                                \
1583     sgi                                                                 \
1584     snow="snow snowll"                                                  \
1585     svq1                                                                \
1586     targa=tga                                                           \
1587     tiff                                                                \
1588     wmav1                                                               \
1589     wmav2                                                               \
1590     wmv1                                                                \
1591     wmv2                                                                \
1592
1593 test_deps _muxer _demuxer                                               \
1594     aiff                                                                \
1595     pcm_alaw=alaw                                                       \
1596     asf                                                                 \
1597     au                                                                  \
1598     avi                                                                 \
1599     dv=dv_fmt                                                           \
1600     ffm                                                                 \
1601     flv=flv_fmt                                                         \
1602     gxf                                                                 \
1603     matroska=mkv                                                        \
1604     mmf                                                                 \
1605     mov                                                                 \
1606     pcm_mulaw=mulaw                                                     \
1607     mxf                                                                 \
1608     nut                                                                 \
1609     ogg                                                                 \
1610     rawvideo=pixfmt                                                     \
1611     rm                                                                  \
1612     swf                                                                 \
1613     mpegts=ts                                                           \
1614     voc                                                                 \
1615     wav                                                                 \
1616     yuv4mpegpipe=yuv4mpeg                                               \
1617
1618 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1619 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1620
1621 set_ne_test_deps pixdesc
1622 set_ne_test_deps pixfmts_copy
1623 set_ne_test_deps pixfmts_crop
1624 set_ne_test_deps pixfmts_hflip
1625 set_ne_test_deps pixfmts_null
1626 set_ne_test_deps pixfmts_pad
1627 set_ne_test_deps pixfmts_scale
1628 set_ne_test_deps pixfmts_vflip
1629
1630 # default parameters
1631
1632 logfile="config.log"
1633
1634 # installation paths
1635 prefix_default="/usr/local"
1636 bindir_default='${prefix}/bin'
1637 datadir_default='${prefix}/share/ffmpeg'
1638 incdir_default='${prefix}/include'
1639 libdir_default='${prefix}/lib'
1640 mandir_default='${prefix}/share/man'
1641 shlibdir_default="$libdir_default"
1642
1643 # toolchain
1644 ar_default="ar"
1645 cc_default="gcc"
1646 cc_version=\"unknown\"
1647 host_cc_default="gcc"
1648 install="install"
1649 ln_s="ln -sf"
1650 nm_default="nm"
1651 objformat="elf"
1652 pkg_config_default=pkg-config
1653 ranlib="ranlib"
1654 strip_default="strip"
1655 yasmexe="yasm"
1656 nogas=":"
1657
1658 nm_opts='-g'
1659
1660 # machine
1661 arch_default=$(uname -m)
1662 cpu="generic"
1663
1664 # OS
1665 target_os_default=$(tolower $(uname -s))
1666 host_os=$target_os_default
1667
1668 # configurable options
1669 enable avcodec
1670 enable avdevice
1671 enable avfilter
1672 enable avformat
1673 enable avutil
1674 enable asm
1675 enable debug
1676 enable doc
1677 enable fastdiv
1678 enable ffmpeg
1679 enable ffplay
1680 enable ffprobe
1681 enable ffserver
1682 enable network
1683 enable optimizations
1684 enable postproc
1685 enable protocols
1686 enable static
1687 enable stripping
1688 enable swscale
1689 enable swscale_alpha
1690
1691 # build settings
1692 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1693 FFSERVERLDFLAGS=-Wl,-E
1694 LIBPREF="lib"
1695 LIBSUF=".a"
1696 FULLNAME='$(NAME)$(BUILDSUF)'
1697 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1698 SLIBPREF="lib"
1699 SLIBSUF=".so"
1700 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1701 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1702 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1703 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1704
1705 CC_O='-o $@'
1706
1707 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1708 host_libs='-lm'
1709
1710 target_path='$(CURDIR)'
1711
1712 # since the object filename is not given with the -MM flag, the compiler
1713 # is only able to print the basename, and we must add the path ourselves
1714 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1715 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1716
1717 # find source path
1718 source_path="$(dirname "$0")"
1719 enable source_path_used
1720 if test -f configure; then
1721     source_path="$(pwd)"
1722     disable source_path_used
1723 else
1724     source_path="$(cd "$source_path"; pwd)"
1725     echo "$source_path" | grep -q '[[:blank:]]' &&
1726         die "Out of tree builds are impossible with whitespace in source path."
1727     test -e "$source_path/config.h" &&
1728         die "Out of tree builds are impossible with config.h in source dir."
1729 fi
1730
1731 for v in "$@"; do
1732     r=${v#*=}
1733     l=${v%"$r"}
1734     r=$(sh_quote "$r")
1735     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1736 done
1737
1738 find_things(){
1739     thing=$1
1740     pattern=$2
1741     file=$source_path/$3
1742     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1743 }
1744
1745 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1746 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1747 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1748 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1749 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1750 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1751 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1752 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1753 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1754 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1755 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1756
1757 find_tests(){
1758     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1759 }
1760
1761 ACODEC_TESTS=$(find_tests acodec)
1762 VCODEC_TESTS=$(find_tests vsynth1)
1763 LAVF_TESTS=$(find_tests lavf)
1764 LAVFI_TESTS=$(find_tests lavfi)
1765 SEEK_TESTS=$(find_tests seek seek_)
1766
1767 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1768
1769 for n in $COMPONENT_LIST; do
1770     v=$(toupper ${n%s})_LIST
1771     eval enable \$$v
1772     eval ${n}_if_any="\$$v"
1773 done
1774
1775 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1776
1777 die_unknown(){
1778     echo "Unknown option \"$1\"."
1779     echo "See $0 --help for available options."
1780     exit 1
1781 }
1782
1783 show_list() {
1784     suffix=_$1
1785     shift
1786     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1787     exit 0
1788 }
1789
1790 for opt do
1791     optval="${opt#*=}"
1792     case "$opt" in
1793     --extra-ldflags=*) add_ldflags $optval
1794     ;;
1795     --extra-libs=*) add_extralibs $optval
1796     ;;
1797     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1798     ;;
1799     --enable-debug=*) debuglevel="$optval"
1800     ;;
1801     --disable-everything)
1802     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1803     ;;
1804     --enable-*=*|--disable-*=*)
1805     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1806     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1807     eval list=\$$(toupper $thing)_LIST
1808     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1809     $action $(filter "$name" $list)
1810     ;;
1811     --enable-?*|--disable-?*)
1812     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1813     if is_in $option $COMPONENT_LIST; then
1814         test $action = disable && action=unset
1815         eval $action \$$(toupper ${option%s})_LIST
1816     elif is_in $option $CMDLINE_SELECT; then
1817         $action $option
1818     else
1819         die_unknown $opt
1820     fi
1821     ;;
1822     --list-*)
1823         NAME="${opt#--list-}"
1824         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1825         NAME=${NAME%s}
1826         eval show_list $NAME \$$(toupper $NAME)_LIST
1827     ;;
1828     --help|-h) show_help
1829     ;;
1830     *)
1831     optname="${opt%%=*}"
1832     optname="${optname#--}"
1833     optname=$(echo "$optname" | sed 's/-/_/g')
1834     if is_in $optname $CMDLINE_SET; then
1835         eval $optname='$optval'
1836     elif is_in $optname $CMDLINE_APPEND; then
1837         append $optname "$optval"
1838     else
1839          die_unknown $opt
1840     fi
1841     ;;
1842     esac
1843 done
1844
1845 disabled logging && logfile=/dev/null
1846
1847 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1848 set >> $logfile
1849
1850 test -n "$cross_prefix" && enable cross_compile
1851
1852 if enabled cross_compile; then
1853     test -n "$arch" && test -n "$target_os" ||
1854         die "Must specify target arch and OS when cross-compiling"
1855 fi
1856
1857 set_default arch target_os
1858
1859 ar_default="${cross_prefix}${ar_default}"
1860 cc_default="${cross_prefix}${cc_default}"
1861 nm_default="${cross_prefix}${nm_default}"
1862 pkg_config_default="${cross_prefix}${pkg_config_default}"
1863 ranlib="${cross_prefix}${ranlib}"
1864 strip_default="${cross_prefix}${strip_default}"
1865
1866 sysinclude_default="${sysroot}/usr/include"
1867
1868 set_default cc nm pkg_config strip sysinclude
1869 enabled cross_compile || host_cc_default=$cc
1870 set_default host_cc
1871
1872 if ! $pkg_config --version >/dev/null 2>&1; then
1873     warn "$pkg_config not found, library detection may fail."
1874     pkg_config=false
1875 fi
1876
1877 exesuf() {
1878     case $1 in
1879         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1880     esac
1881 }
1882
1883 EXESUF=$(exesuf $target_os)
1884 HOSTEXESUF=$(exesuf $host_os)
1885
1886 # set temporary file name
1887 : ${TMPDIR:=$TEMPDIR}
1888 : ${TMPDIR:=$TMP}
1889 : ${TMPDIR:=/tmp}
1890
1891 if ! check_cmd mktemp -u XXXXXX; then
1892     # simple replacement for missing mktemp
1893     # NOT SAFE FOR GENERAL USE
1894     mktemp(){
1895         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1896     }
1897 fi
1898
1899 tmpfile(){
1900     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1901         (set -C; exec > $tmp) 2>/dev/null ||
1902         die "Unable to create temporary file in $TMPDIR."
1903     append TMPFILES $tmp
1904     eval $1=$tmp
1905 }
1906
1907 trap 'rm -f -- $TMPFILES' EXIT
1908
1909 tmpfile TMPC  .c
1910 tmpfile TMPE  $EXESUF
1911 tmpfile TMPH  .h
1912 tmpfile TMPO  .o
1913 tmpfile TMPS  .S
1914 tmpfile TMPV  .ver
1915 tmpfile TMPSH .sh
1916 tmpfile TMPASM .asm
1917
1918 unset -f mktemp
1919
1920 chmod +x $TMPE
1921
1922 # make sure we can execute files in $TMPDIR
1923 cat > $TMPSH 2>> $logfile <<EOF
1924 #! /bin/sh
1925 EOF
1926 chmod +x $TMPSH >> $logfile 2>&1
1927 if ! $TMPSH >> $logfile 2>&1; then
1928     cat <<EOF
1929 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1930 variable to another directory and make sure that it is not mounted noexec.
1931 EOF
1932     die "Sanity test failed."
1933 fi
1934
1935 filter_cflags=echo
1936 filter_cppflags=echo
1937 filter_asflags=echo
1938
1939 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1940     cc_type=llvm_gcc
1941     cc_version=__VERSION__
1942     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1943     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1944     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1945     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1946     speed_cflags='-O3'
1947     size_cflags='-Os'
1948 elif $cc -v 2>&1 | grep -qi ^gcc; then
1949     cc_type=gcc
1950     cc_version=__VERSION__
1951     gcc_version=$($cc --version | head -n1)
1952     gcc_basever=$($cc -dumpversion)
1953     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1954     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1955     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1956     if ! $cc -dumpversion | grep -q '^2\.'; then
1957         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1958         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1959     fi
1960     speed_cflags='-O3'
1961     size_cflags='-Os'
1962 elif $cc --version 2>/dev/null | grep -q Intel; then
1963     cc_type=icc
1964     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1965     cc_ident=$($cc --version | head -n1)
1966     icc_version=$($cc -dumpversion)
1967     CC_DEPFLAGS='-MMD'
1968     AS_DEPFLAGS='-MMD'
1969     speed_cflags='-O3'
1970     size_cflags='-Os'
1971     noopt_cflags='-O1'
1972 elif $cc -v 2>&1 | grep -q xlc; then
1973     cc_type=xlc
1974     cc_version="AV_STRINGIFY(__IBMC__)"
1975     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1976     speed_cflags='-O5'
1977     size_cflags='-O5 -qcompact'
1978 elif $cc -V 2>/dev/null | grep -q Compaq; then
1979     cc_type=ccc
1980     cc_version="AV_STRINGIFY(__DECC_VER)"
1981     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1982     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1983     debuglevel=3
1984     add_ldflags -Wl,-z,now # calls to libots crash without this
1985     speed_cflags='-fast'
1986     size_cflags='-O1'
1987 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1988     test -d "$sysroot" || die "No valid sysroot specified."
1989     cc_type=armcc
1990     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1991     cc_ident=$($cc --vsn | head -n1)
1992     armcc_conf="$PWD/armcc.conf"
1993     $cc --arm_linux_configure                 \
1994         --arm_linux_config_file="$armcc_conf" \
1995         --configure_sysroot="$sysroot"        \
1996         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1997         die "Error creating armcc configuration file."
1998     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1999     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2000     as_default="${cross_prefix}gcc"
2001     CC_DEPFLAGS='-MMD'
2002     AS_DEPFLAGS='-MMD'
2003     speed_cflags='-O3'
2004     size_cflags='-Os'
2005     filter_asflags="filter_out -W${armcc_opt}*"
2006 elif $cc -version 2>/dev/null | grep -q TMS470; then
2007     cc_type=tms470
2008     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2009     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2010     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2011     CC_O='-fr=$(@D)'
2012     as_default="${cross_prefix}gcc"
2013     ld_default="${cross_prefix}gcc"
2014     TMPO=$(basename $TMPC .c).o
2015     append TMPFILES $TMPO
2016     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2017     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2018     AS_DEPFLAGS='-MMD'
2019     speed_cflags='-O3 -mf=5'
2020     size_cflags='-O3 -mf=2'
2021     filter_cflags=tms470_flags
2022     tms470_flags(){
2023         for flag; do
2024             case $flag in
2025                 -march=*|-mcpu=*)
2026                     case "${flag#*=}" in
2027                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2028                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2029                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2030                         armv6*|arm11*)          echo -mv=6   ;;
2031                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2032                                                 echo -mv=5e  ;;
2033                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2034                     esac
2035                     ;;
2036                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2037                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2038                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2039                 -msoft-float)   echo --float_support=vfplib       ;;
2040                 -O[0-3]|-mf=*)  echo $flag                        ;;
2041                 -g)             echo -g -mn                       ;;
2042                 -pds=*)         echo $flag                        ;;
2043             esac
2044         done
2045     }
2046 elif $cc -v 2>&1 | grep -q clang; then
2047     cc_type=clang
2048     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2049         cc_version=__clang_version__ || cc_version=__VERSION__
2050     cc_ident=$($cc --version | head -n1)
2051     CC_DEPFLAGS='-MMD'
2052     AS_DEPFLAGS='-MMD'
2053     speed_cflags='-O3'
2054     size_cflags='-Os'
2055 elif $cc -V 2>&1 | grep -q Sun; then
2056     cc_type=suncc
2057     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2058     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2059     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2060     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2061     speed_cflags='-O5'
2062     size_cflags='-O5 -xspace'
2063     filter_cflags=suncc_flags
2064     suncc_flags(){
2065         for flag; do
2066             case $flag in
2067                 -march=*|-mcpu=*)
2068                     case "${flag#*=}" in
2069                         native)                   echo -xtarget=native       ;;
2070                         v9|niagara)               echo -xarch=sparc          ;;
2071                         ultrasparc)               echo -xarch=sparcvis       ;;
2072                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2073                         i586|pentium)             echo -xchip=pentium        ;;
2074                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2075                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2076                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2077                         pentium4*)          echo -xtarget=pentium4           ;;
2078                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2079                         *-sse3)             echo -xarch=sse3                 ;;
2080                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2081                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2082                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2083                         k8|opteron|athlon64|athlon-fx)
2084                                                   echo -xarch=sse2a          ;;
2085                         athlon*)                  echo -xarch=pentium_proa   ;;
2086                     esac
2087                     ;;
2088                 -std=c99)             echo -xc99              ;;
2089                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2090                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2091                 -W*,*)                echo $flag              ;;
2092                 -f*-*|-W*)                                    ;;
2093                 *)                    echo $flag              ;;
2094             esac
2095         done
2096     }
2097 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2098     cc_type=pathscale
2099     cc_version=__PATHSCALE__
2100     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2101     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2102     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2103     speed_cflags='-O2'
2104     size_cflags='-Os'
2105 elif $cc -v 2>&1 | grep -q Open64; then
2106     cc_type=open64
2107     cc_version=__OPEN64__
2108     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2109     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2110     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2111     speed_cflags='-O2'
2112     size_cflags='-Os'
2113 fi
2114
2115 test -n "$cc_type" && enable $cc_type ||
2116     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2117
2118 : ${as_default:=$cc}
2119 : ${dep_cc_default:=$cc}
2120 : ${ld_default:=$cc}
2121 set_default ar as dep_cc ld
2122
2123 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2124 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2125
2126 add_cflags $extra_cflags
2127 add_asflags $extra_cflags
2128
2129 if test -n "$sysroot"; then
2130     case "$cc_type" in
2131         gcc|llvm_gcc|clang)
2132             add_cppflags --sysroot="$sysroot"
2133             add_ldflags --sysroot="$sysroot"
2134         ;;
2135         tms470)
2136             add_cppflags -I"$sysinclude"
2137             add_ldflags  --sysroot="$sysroot"
2138         ;;
2139     esac
2140 fi
2141
2142 if test "$cpu" = host; then
2143     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2144
2145     case "$cc_type" in
2146         gcc|llvm_gcc)
2147             check_native(){
2148                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2149                 sed -n "/$1=/{
2150                             s/.*$1=\\([^ ]*\\).*/\\1/
2151                             p
2152                             q
2153                         }" $TMPE
2154             }
2155             cpu=$(check_native -march || check_native -mcpu)
2156         ;;
2157     esac
2158
2159     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2160 fi
2161
2162 # Deal with common $arch aliases
2163 case "$arch" in
2164     arm*)
2165         arch="arm"
2166     ;;
2167     mips|mipsel|IP*)
2168         arch="mips"
2169     ;;
2170     mips64*)
2171         arch="mips"
2172         subarch="mips64"
2173     ;;
2174     parisc|hppa)
2175         arch="parisc"
2176     ;;
2177     parisc64|hppa64)
2178         arch="parisc"
2179         subarch="parisc64"
2180     ;;
2181     "Power Macintosh"|ppc|powerpc)
2182         arch="ppc"
2183     ;;
2184     ppc64|powerpc64)
2185         arch="ppc"
2186         subarch="ppc64"
2187     ;;
2188     s390|s390x)
2189         arch="s390"
2190     ;;
2191     sh4|sh)
2192         arch="sh4"
2193     ;;
2194     sun4u|sparc64)
2195         arch="sparc"
2196         subarch="sparc64"
2197     ;;
2198     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2199         arch="x86"
2200     ;;
2201 esac
2202
2203 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2204 enable $arch
2205
2206 # Add processor-specific flags
2207 if test "$cpu" = generic; then
2208     : do nothing
2209 elif enabled ppc; then
2210
2211     case $(tolower $cpu) in
2212         601|ppc601|powerpc601)
2213             cpuflags="-mcpu=601"
2214             disable altivec
2215         ;;
2216         603*|ppc603*|powerpc603*)
2217             cpuflags="-mcpu=603"
2218             disable altivec
2219         ;;
2220         604*|ppc604*|powerpc604*)
2221             cpuflags="-mcpu=604"
2222             disable altivec
2223         ;;
2224         g3|75*|ppc75*|powerpc75*)
2225             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2226             disable altivec
2227         ;;
2228         g4|745*|ppc745*|powerpc745*)
2229             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2230         ;;
2231         74*|ppc74*|powerpc74*)
2232             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2233         ;;
2234         g5|970|ppc970|powerpc970|power4*)
2235             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2236         ;;
2237         cell)
2238             cpuflags="-mcpu=cell"
2239             enable ldbrx
2240         ;;
2241         e500v2)
2242             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2243             disable altivec
2244         ;;
2245         e500)
2246             cpuflags="-mcpu=8540 -mhard-float"
2247             disable altivec
2248         ;;
2249     esac
2250
2251 elif enabled x86; then
2252
2253     case $cpu in
2254         i[345]86|pentium)
2255             cpuflags="-march=$cpu"
2256             disable mmx
2257         ;;
2258         # targets that do NOT support conditional mov (cmov)
2259         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2260             cpuflags="-march=$cpu"
2261             disable cmov
2262         ;;
2263         # targets that do support conditional mov (cmov)
2264         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2265             cpuflags="-march=$cpu"
2266             enable cmov
2267             enable fast_cmov
2268         ;;
2269         # targets that do support conditional mov but on which it's slow
2270         pentium4|pentium4m|prescott|nocona)
2271             cpuflags="-march=$cpu"
2272             enable cmov
2273             disable fast_cmov
2274         ;;
2275     esac
2276
2277 elif enabled sparc; then
2278
2279     case $cpu in
2280         niagara)
2281             cpuflags="-mcpu=$cpu"
2282             disable vis
2283         ;;
2284         sparc64)
2285             cpuflags="-mcpu=v9"
2286         ;;
2287     esac
2288
2289 elif enabled arm; then
2290
2291     case $cpu in
2292         armv*)
2293             cpuflags="-march=$cpu"
2294             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2295         ;;
2296         *)
2297             cpuflags="-mcpu=$cpu"
2298             case $cpu in
2299                 cortex-a*)                               subarch=armv7a  ;;
2300                 cortex-r*)                               subarch=armv7r  ;;
2301                 cortex-m*)                               subarch=armv7m  ;;
2302                 arm11*)                                  subarch=armv6   ;;
2303                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2304                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2305             esac
2306         ;;
2307     esac
2308
2309 elif enabled alpha; then
2310
2311     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2312
2313 elif enabled bfin; then
2314
2315     cpuflags="-mcpu=$cpu"
2316
2317 elif enabled mips; then
2318
2319     cpuflags="-march=$cpu"
2320
2321 elif enabled avr32; then
2322
2323     case $cpu in
2324         ap7[02]0[0-2])
2325             subarch="avr32_ap"
2326             cpuflags="-mpart=$cpu"
2327         ;;
2328         ap)
2329             subarch="avr32_ap"
2330             cpuflags="-march=$cpu"
2331         ;;
2332         uc3[ab]*)
2333             subarch="avr32_uc"
2334             cpuflags="-mcpu=$cpu"
2335         ;;
2336         uc)
2337             subarch="avr32_uc"
2338             cpuflags="-march=$cpu"
2339         ;;
2340     esac
2341
2342 fi
2343
2344 add_cflags $cpuflags
2345 add_asflags $cpuflags
2346
2347 # compiler sanity check
2348 check_exec <<EOF
2349 int main(void){ return 0; }
2350 EOF
2351 if test "$?" != 0; then
2352     echo "$cc is unable to create an executable file."
2353     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2354         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2355         echo "Only do this if you know what cross compiling means."
2356     fi
2357     die "C compiler test failed."
2358 fi
2359
2360 add_cppflags -D_ISOC99_SOURCE
2361 check_cflags -std=c99
2362 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2363 #include <stdlib.h>
2364 EOF
2365 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2366 #include <stdlib.h>
2367 EOF
2368
2369 check_host_cflags -std=c99
2370 check_host_cflags -Wall
2371
2372 case "$arch" in
2373     alpha|ia64|mips|parisc|sparc)
2374         spic=$shared
2375     ;;
2376     x86)
2377         subarch="x86_32"
2378         check_cc <<EOF && subarch="x86_64"
2379         int test[(int)sizeof(char*) - 7];
2380 EOF
2381         if test "$subarch" = "x86_64"; then
2382             spic=$shared
2383         fi
2384     ;;
2385 esac
2386
2387 enable $subarch
2388 enabled spic && enable pic
2389
2390 # OS specific
2391 case $target_os in
2392     haiku)
2393         prefix_default="/boot/common"
2394         network_extralibs="-lnetwork"
2395         host_libs=
2396         ;;
2397     sunos)
2398         FFSERVERLDFLAGS=""
2399         SHFLAGS='-shared -Wl,-h,$$(@F)'
2400         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2401         network_extralibs="-lsocket -lnsl"
2402         add_cppflags -D__EXTENSIONS__
2403         nm_opts='-P -g'
2404         ;;
2405     netbsd)
2406         disable symver
2407         oss_indev_extralibs="-lossaudio"
2408         oss_outdev_extralibs="-lossaudio"
2409         ;;
2410     openbsd)
2411         enable malloc_aligned
2412         # On OpenBSD 4.5. the compiler does not use PIC unless
2413         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2414         # however the generated executable will not do anything
2415         # (simply quits with exit-code 1, no crash, no output).
2416         # Thus explicitly enable PIC here.
2417         enable pic
2418         disable symver
2419         SHFLAGS='-shared'
2420         oss_indev_extralibs="-lossaudio"
2421         oss_outdev_extralibs="-lossaudio"
2422         ;;
2423     dragonfly)
2424         enable malloc_aligned
2425         disable symver
2426         ;;
2427     freebsd)
2428         enable malloc_aligned
2429         ;;
2430     bsd/os)
2431         add_extralibs -lpoll -lgnugetopt
2432         strip="strip -d"
2433         ;;
2434     darwin)
2435         enable malloc_aligned
2436         gas="gas-preprocessor.pl $cc"
2437         enabled ppc && add_asflags -force_cpusubtype_ALL
2438         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2439         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2440         strip="${strip} -x"
2441         add_ldflags -Wl,-dynamic,-search_paths_first
2442         SLIBSUF=".dylib"
2443         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2444         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2445         FFSERVERLDFLAGS=-Wl,-bind_at_load
2446         objformat="macho"
2447         enabled x86_64 && objformat="macho64"
2448         enabled_any pic shared ||
2449             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2450         ;;
2451     mingw32*)
2452         if test $target_os = "mingw32ce"; then
2453             disable network
2454         else
2455             target_os=mingw32
2456         fi
2457         LIBTARGET=i386
2458         if enabled x86_64; then
2459             enable malloc_aligned
2460             LIBTARGET=x64
2461         elif enabled arm; then
2462             LIBTARGET=arm-wince
2463         fi
2464         shlibdir_default="$bindir_default"
2465         SLIBPREF=""
2466         SLIBSUF=".dll"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2469         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2470         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2471             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2472             install -d "$(LIBDIR)"; \
2473             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2474         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2475         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'
2476         objformat="win32"
2477         enable dos_paths
2478         check_cflags -fno-common
2479         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2480                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2481                 die "ERROR: MinGW runtime version must be >= 3.15."
2482         add_cppflags -U__STRICT_ANSI__
2483         ;;
2484     cygwin*)
2485         target_os=cygwin
2486         shlibdir_default="$bindir_default"
2487         SLIBPREF="cyg"
2488         SLIBSUF=".dll"
2489         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2490         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2491         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2492         objformat="win32"
2493         enable dos_paths
2494         check_cflags -fno-common
2495         add_cppflags -U__STRICT_ANSI__
2496         ;;
2497     *-dos|freedos|opendos)
2498         network_extralibs="-lsocket"
2499         objformat="coff"
2500         enable dos_paths
2501         add_cppflags -U__STRICT_ANSI__
2502         ;;
2503     linux)
2504         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2505         enable dv1394
2506         ;;
2507     irix*)
2508         target_os=irix
2509         ranlib="echo ignoring ranlib"
2510         ;;
2511     os/2*)
2512         strip="lxlite -CS"
2513         ln_s="cp -f"
2514         objformat="aout"
2515         add_cppflags -D_GNU_SOURCE
2516         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2517         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2518         FFSERVERLDFLAGS=""
2519         LIBSUF="_s.a"
2520         SLIBPREF=""
2521         SLIBSUF=".dll"
2522         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2523         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2524         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2525           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2526           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2527           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2528           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2529           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2530         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2531           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2532         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2533         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2534         enable dos_paths
2535         ;;
2536     gnu/kfreebsd)
2537         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2538         ;;
2539     gnu)
2540         ;;
2541     qnx)
2542         add_cppflags -D_QNX_SOURCE
2543         network_extralibs="-lsocket"
2544         ;;
2545     symbian)
2546         SLIBSUF=".dll"
2547         enable dos_paths
2548         add_cflags --include=$sysinclude/gcce/gcce.h
2549         ;;
2550     none)
2551         ;;
2552     *)
2553         die "Unknown OS '$target_os'."
2554         ;;
2555 esac
2556
2557 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2558
2559 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2560
2561 set_default $PATHS_LIST
2562
2563 # we need to build at least one lib type
2564 if ! enabled_any static shared; then
2565     cat <<EOF
2566 At least one library type must be built.
2567 Specify --enable-static to build the static libraries or --enable-shared to
2568 build the shared libraries as well. To only build the shared libraries specify
2569 --disable-static in addition to --enable-shared.
2570 EOF
2571     exit 1;
2572 fi
2573
2574 disabled static && LIBNAME=""
2575
2576 die_license_disabled() {
2577     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2578 }
2579
2580 die_license_disabled gpl libx264
2581 die_license_disabled gpl libxavs
2582 die_license_disabled gpl libxvid
2583 die_license_disabled gpl x11grab
2584
2585 die_license_disabled nonfree libfaac
2586
2587 die_license_disabled version3 libopencore_amrnb
2588 die_license_disabled version3 libopencore_amrwb
2589 die_license_disabled version3 libvo_aacenc
2590 die_license_disabled version3 libvo_amrwbenc
2591
2592 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2593
2594 disabled optimizations || check_cflags -fomit-frame-pointer
2595
2596 enable_pic() {
2597     enable pic
2598     add_cppflags -DPIC
2599     add_cflags   -fPIC
2600     add_asflags  -fPIC
2601 }
2602
2603 enabled pic && enable_pic
2604
2605 check_cc <<EOF || die "Symbol mangling check failed."
2606 int ff_extern;
2607 EOF
2608 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2609 extern_prefix=${sym%%ff_extern*}
2610
2611 check_cc <<EOF && enable inline_asm
2612 void foo(void) { __asm__ volatile ("" ::); }
2613 EOF
2614
2615 _restrict=
2616 for restrict_keyword in restrict __restrict__ __restrict; do
2617     check_cc <<EOF && _restrict=$restrict_keyword && break
2618 void foo(char * $restrict_keyword p);
2619 EOF
2620 done
2621
2622 check_cc <<EOF && enable attribute_packed
2623 struct { int x; } __attribute__((packed)) x;
2624 EOF
2625
2626 check_cc <<EOF && enable attribute_may_alias
2627 union { int x; } __attribute__((may_alias)) x;
2628 EOF
2629
2630 check_cc <<EOF || die "endian test failed"
2631 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2632 EOF
2633 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2634
2635 if enabled alpha; then
2636
2637     check_cflags -mieee
2638
2639 elif enabled arm; then
2640
2641     check_cflags -marm
2642     nogas=die
2643
2644     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2645         enable vfp_args
2646     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2647         case "${cross_prefix:-$cc}" in
2648             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2649             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2650 __asm__ (".eabi_attribute 28, 1");
2651 int main(void) { return 0; }
2652 EOF
2653         esac
2654         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2655     fi
2656
2657     # We have to check if pld is a nop and disable it.
2658     check_asm pld '"pld [r0]"'
2659
2660     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2661     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2662     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2663     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2664     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2665     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2666     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2667
2668     enabled_all armv6t2 shared !pic && enable_pic
2669
2670 elif enabled mips; then
2671
2672     check_asm loongson '"dmult.g $1, $2, $3"'
2673     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2674
2675 elif enabled ppc; then
2676
2677     enable local_aligned_8 local_aligned_16
2678
2679     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2680     check_asm ibm_asm   '"add 0, 0, 0"'
2681     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2682     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2683
2684     # AltiVec flags: The FSF version of GCC differs from the Apple version
2685     if enabled altivec; then
2686         nogas=warn
2687         check_cflags -maltivec -mabi=altivec &&
2688         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2689         check_cflags -faltivec
2690
2691         # check if our compiler supports Motorola AltiVec C API
2692         check_cc <<EOF || disable altivec
2693 $inc_altivec_h
2694 int main(void) {
2695     vector signed int v1, v2, v3;
2696     v1 = vec_add(v2,v3);
2697     return 0;
2698 }
2699 EOF
2700
2701         # check if our compiler supports braces for vector declarations
2702         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2703 $inc_altivec_h
2704 int main (void) { (vector int) {1}; return 0; }
2705 EOF
2706     fi
2707
2708 elif enabled sparc; then
2709
2710     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2711         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2712
2713 elif enabled x86; then
2714
2715     enable local_aligned_8 local_aligned_16
2716
2717     # check whether EBP is available on x86
2718     # As 'i' is stored on the stack, this program will crash
2719     # if the base pointer is used to access it because the
2720     # base pointer is cleared in the inline assembly code.
2721     check_exec_crash <<EOF && enable ebp_available
2722     volatile int i=0;
2723     __asm__ volatile (
2724         "xorl %%ebp, %%ebp"
2725     ::: "%ebp");
2726     return i;
2727 EOF
2728
2729     # check whether EBX is available on x86
2730     check_asm ebx_available '""::"b"(0)' &&
2731         check_asm ebx_available '"":::"%ebx"'
2732
2733     # check whether xmm clobbers are supported
2734     check_asm xmm_clobbers '"":::"%xmm0"'
2735
2736     # check whether more than 10 operands are supported
2737     check_cc <<EOF && enable ten_operands
2738 int main(void) {
2739     int x=0;
2740     __asm__ volatile(
2741         ""
2742         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2743     );
2744     return 0;
2745 }
2746 EOF
2747
2748     # check whether binutils is new enough to compile SSSE3/MMX2
2749     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2750     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2751
2752     check_asm bswap '"bswap %%eax" ::: "%eax"'
2753
2754     if ! disabled_any asm mmx yasm; then
2755         if check_cmd $yasmexe --version; then
2756             enabled x86_64 && yasm_extra="-m amd64"
2757             yasm_debug="-g dwarf2"
2758         elif check_cmd nasm -v; then
2759             yasmexe=nasm
2760             yasm_debug="-g -F dwarf"
2761             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2762         fi
2763
2764         YASMFLAGS="-f $objformat $yasm_extra"
2765         enabled pic               && append YASMFLAGS "-DPIC"
2766         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2767         case "$objformat" in
2768             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2769         esac
2770
2771         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2772             die "yasm not found, use --disable-yasm for a crippled build"
2773         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2774     fi
2775
2776     case "$cpu" in
2777         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2778             disable fast_clz
2779         ;;
2780     esac
2781
2782 fi
2783
2784 if enabled asm; then
2785     as=${gas:=$as}
2786     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2787         $nogas "GNU assembler not found, install gas-preprocessor"
2788 fi
2789
2790 check_ldflags -Wl,--as-needed
2791
2792 if check_func dlopen; then
2793     ldl=
2794 elif check_func dlopen -ldl; then
2795     ldl=-ldl
2796 fi
2797
2798 if enabled network; then
2799     check_type "sys/types.h sys/socket.h" socklen_t
2800     check_type netdb.h "struct addrinfo"
2801     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2802     check_type netinet/in.h "struct sockaddr_in6"
2803     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2804     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2805     # Prefer arpa/inet.h over winsock2
2806     if check_header arpa/inet.h ; then
2807         check_func closesocket
2808     elif check_header winsock2.h ; then
2809         check_func_headers winsock2.h closesocket -lws2 && \
2810             network_extralibs="-lws2" || \
2811         { check_func_headers winsock2.h closesocket -lws2_32 && \
2812             network_extralibs="-lws2_32"; }
2813         check_type ws2tcpip.h socklen_t
2814         check_type ws2tcpip.h "struct addrinfo"
2815         check_type ws2tcpip.h "struct ipv6_mreq"
2816         check_type ws2tcpip.h "struct sockaddr_in6"
2817         check_type ws2tcpip.h "struct sockaddr_storage"
2818         check_struct winsock2.h "struct sockaddr" sa_len
2819     else
2820         disable network
2821     fi
2822 fi
2823
2824 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2825 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2826
2827 check_func  fcntl
2828 check_func  fork
2829 check_func  getaddrinfo $network_extralibs
2830 check_func  gethrtime
2831 check_func  getrusage
2832 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2833 check_func  inet_aton $network_extralibs
2834 check_func  isatty
2835 check_func  localtime_r
2836 check_func  ${malloc_prefix}memalign            && enable memalign
2837 check_func  mkstemp
2838 check_func  mmap
2839 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2840 check_func  setrlimit
2841 check_func  strerror_r
2842 check_func  strtok_r
2843 check_func_headers conio.h kbhit
2844 check_func_headers io.h setmode
2845 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2846 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2847 check_func_headers windows.h GetProcessTimes
2848 check_func_headers windows.h MapViewOfFile
2849 check_func_headers windows.h VirtualAlloc
2850
2851 check_header dlfcn.h
2852 check_header dxva2api.h
2853 check_header libcrystalhd/libcrystalhd_if.h
2854 check_header malloc.h
2855 check_header poll.h
2856 check_header sys/mman.h
2857 check_header sys/resource.h
2858 check_header sys/select.h
2859 check_header termios.h
2860 check_header vdpau/vdpau.h
2861 check_header vdpau/vdpau_x11.h
2862 check_header X11/extensions/XvMClib.h
2863
2864 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2865
2866 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2867 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2868
2869 # check for some common methods of building with pthread support
2870 # do this before the optional library checks as some of them require pthreads
2871 if ! disabled pthreads && ! enabled w32threads; then
2872     enable pthreads
2873     if check_func pthread_create; then
2874         :
2875     elif check_func pthread_create -pthread; then
2876         add_cflags -pthread
2877         add_extralibs -pthread
2878     elif check_func pthread_create -pthreads; then
2879         add_cflags -pthreads
2880         add_extralibs -pthreads
2881     elif check_func pthread_create -lpthreadGC2; then
2882         add_extralibs -lpthreadGC2
2883     elif ! check_lib pthread.h pthread_create -lpthread; then
2884         disable pthreads
2885     fi
2886 fi
2887
2888 for thread in $THREADS_LIST; do
2889     if enabled $thread; then
2890         test -n "$thread_type" &&
2891             die "ERROR: Only one thread type must be selected." ||
2892             thread_type="$thread"
2893     fi
2894 done
2895
2896 check_lib math.h sin -lm && LIBM="-lm"
2897 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2898 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2899
2900 check_mathfunc exp2
2901 check_mathfunc exp2f
2902 check_mathfunc llrint
2903 check_mathfunc llrintf
2904 check_mathfunc log2
2905 check_mathfunc log2f
2906 check_mathfunc lrint
2907 check_mathfunc lrintf
2908 check_mathfunc round
2909 check_mathfunc roundf
2910 check_mathfunc trunc
2911 check_mathfunc truncf
2912
2913 # these are off by default, so fail if requested and not available
2914 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2915 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2916 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2917 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2918 enabled libdirac   && require_pkg_config dirac                          \
2919     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2920     "dirac_decoder_init dirac_encoder_init"
2921 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2922 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2923 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2924 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2925 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2926 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2927 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2928 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2929 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2930 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2931 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2932 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2933 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2934 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2935 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2936 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2937 enabled libvpx     && {
2938     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2939                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2940     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2941                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2942 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2943                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2944                         die "ERROR: libx264 version must be >= 0.115."; }
2945 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2946 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2947 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2948
2949 SDL_CONFIG="${cross_prefix}sdl-config"
2950 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2951     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2952     enable sdl &&
2953     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2954 else
2955   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2956     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2957     sdl_libs=$("${SDL_CONFIG}" --libs)
2958     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2959     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2960     enable sdl &&
2961     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2962   fi
2963 fi
2964 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2965
2966 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2967
2968 check_header linux/fb.h
2969 check_header linux/videodev.h
2970 check_header linux/videodev2.h
2971 check_header sys/videoio.h
2972
2973 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2974 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2975 # w32api 3.12 had it defined wrong
2976 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2977
2978 check_type "dshow.h" IBaseFilter
2979
2980 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2981 { check_header dev/bktr/ioctl_meteor.h &&
2982   check_header dev/bktr/ioctl_bt848.h; } ||
2983 { check_header machine/ioctl_meteor.h &&
2984   check_header machine/ioctl_bt848.h; } ||
2985 { check_header dev/video/meteor/ioctl_meteor.h &&
2986   check_header dev/video/bktr/ioctl_bt848.h; } ||
2987 check_header dev/ic/bt8xx.h
2988
2989 check_header sndio.h
2990 if check_struct sys/soundcard.h audio_buf_info bytes; then
2991     enable_safe sys/soundcard.h
2992 else
2993     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2994     #include <sys/soundcard.h>
2995     audio_buf_info abc;
2996 EOF
2997 fi
2998 check_header soundcard.h
2999
3000 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3001
3002 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3003
3004 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3005
3006 enabled x11grab                         &&
3007 check_header X11/Xlib.h                 &&
3008 check_header X11/extensions/XShm.h      &&
3009 check_header X11/extensions/Xfixes.h    &&
3010 check_func XOpenDisplay -lX11           &&
3011 check_func XShmCreateImage -lX11 -lXext &&
3012 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3013
3014 if ! disabled vaapi; then
3015     check_lib va/va.h vaInitialize -lva && {
3016         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3017         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3018     } || disable vaapi
3019 fi
3020
3021 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3022 check_cpp_condition \
3023     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3024     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3025       disable vdpau; }
3026 fi
3027
3028 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3029
3030 # add some useful compiler flags if supported
3031 check_cflags -Wdeclaration-after-statement
3032 check_cflags -Wall
3033 check_cflags -Wno-parentheses
3034 check_cflags -Wno-switch
3035 check_cflags -Wdisabled-optimization
3036 check_cflags -Wpointer-arith
3037 check_cflags -Wredundant-decls
3038 check_cflags -Wno-pointer-sign
3039 check_cflags -Wcast-qual
3040 check_cflags -Wwrite-strings
3041 check_cflags -Wtype-limits
3042 check_cflags -Wundef
3043 check_cflags -Wmissing-prototypes
3044 check_cflags -Wno-pointer-to-int-cast
3045 enabled extra_warnings && check_cflags -Winline
3046
3047 # add some linker flags
3048 check_ldflags -Wl,--warn-common
3049 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
3050 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3051
3052 echo "X{};" > $TMPV
3053 if test_ldflags -Wl,--version-script,$TMPV; then
3054     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3055     check_cc <<EOF && enable symver_asm_label
3056 void ff_foo(void) __asm__ ("av_foo@VERSION");
3057 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3058 EOF
3059     check_cc <<EOF && enable symver_gnu_asm
3060 __asm__(".symver ff_foo,av_foo@VERSION");
3061 void ff_foo(void) {}
3062 EOF
3063 fi
3064
3065 if enabled small; then
3066     add_cflags $size_cflags
3067     optimizations="small"
3068 elif enabled optimizations; then
3069     add_cflags $speed_cflags
3070 else
3071     add_cflags $noopt_cflags
3072 fi
3073 check_cflags -fno-math-errno
3074 check_cflags -fno-signed-zeros
3075
3076 if enabled icc; then
3077     # Just warnings, no remarks
3078     check_cflags -w1
3079     # -wd: Disable following warnings
3080     # 144, 167, 556: -Wno-pointer-sign
3081     # 1292: attribute "foo" ignored
3082     # 10006: ignoring unknown option -fno-signed-zeros
3083     # 10148: ignoring unknown option -Wno-parentheses
3084     # 10156: ignoring option '-W'; no argument required
3085     check_cflags -wd144,167,556,1292,10006,10148,10156
3086     # 11030: Warning unknown option --as-needed
3087     # 10156: ignoring option '-export'; no argument required
3088     check_ldflags -wd10156,11030
3089     # Allow to compile with optimizations
3090     check_ldflags -march=$cpu
3091     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3092     enable ebp_available
3093     if enabled x86_32; then
3094         test ${icc_version%%.*} -ge 11 && \
3095             check_cflags -falign-stack=maintain-16-byte || \
3096             disable aligned_stack
3097     fi
3098 elif enabled ccc; then
3099     # disable some annoying warnings
3100     add_cflags -msg_disable cvtu32to64
3101     add_cflags -msg_disable embedcomment
3102     add_cflags -msg_disable needconstext
3103     add_cflags -msg_disable nomainieee
3104     add_cflags -msg_disable ptrmismatch1
3105     add_cflags -msg_disable unreachcode
3106 elif enabled gcc; then
3107     check_cflags -fno-tree-vectorize
3108     check_cflags -Werror=implicit-function-declaration
3109     check_cflags -Werror=missing-prototypes
3110 elif enabled llvm_gcc; then
3111     check_cflags -mllvm -stack-alignment=16
3112 elif enabled clang; then
3113     check_cflags -mllvm -stack-alignment=16
3114     check_cflags -Qunused-arguments
3115 elif enabled armcc; then
3116     # 2523: use of inline assembler is deprecated
3117     add_cflags -W${armcc_opt},--diag_suppress=2523
3118     add_cflags -W${armcc_opt},--diag_suppress=1207
3119     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3120     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3121 elif enabled tms470; then
3122     add_cflags -pds=824 -pds=837
3123 elif enabled pathscale; then
3124     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3125 fi
3126
3127 enabled_any $THREADS_LIST      && enable threads
3128
3129 check_deps $CONFIG_LIST       \
3130            $CONFIG_EXTRA      \
3131            $HAVE_LIST         \
3132            $DECODER_LIST      \
3133            $ENCODER_LIST      \
3134            $HWACCEL_LIST      \
3135            $PARSER_LIST       \
3136            $BSF_LIST          \
3137            $DEMUXER_LIST      \
3138            $MUXER_LIST        \
3139            $FILTER_LIST       \
3140            $INDEV_LIST        \
3141            $OUTDEV_LIST       \
3142            $PROTOCOL_LIST     \
3143            $ACODEC_TESTS      \
3144            $VCODEC_TESTS      \
3145            $LAVF_TESTS        \
3146            $LAVFI_TESTS       \
3147            $SEEK_TESTS        \
3148
3149 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3150
3151 ! enabled_any memalign posix_memalign malloc_aligned &&
3152     enabled_any $need_memalign && enable memalign_hack
3153
3154 echo "install prefix            $prefix"
3155 echo "source path               $source_path"
3156 echo "C compiler                $cc"
3157 echo "ARCH                      $arch ($cpu)"
3158 if test "$build_suffix" != ""; then
3159     echo "build suffix              $build_suffix"
3160 fi
3161 if test "$extra_version" != ""; then
3162     echo "version string suffix     $extra_version"
3163 fi
3164 echo "big-endian                ${bigendian-no}"
3165 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3166 if enabled x86; then
3167     echo "${yasmexe}                      ${yasm-no}"
3168     echo "MMX enabled               ${mmx-no}"
3169     echo "MMX2 enabled              ${mmx2-no}"
3170     echo "3DNow! enabled            ${amd3dnow-no}"
3171     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3172     echo "SSE enabled               ${sse-no}"
3173     echo "SSSE3 enabled             ${ssse3-no}"
3174     echo "AVX enabled               ${avx-no}"
3175     echo "CMOV enabled              ${cmov-no}"
3176     echo "CMOV is fast              ${fast_cmov-no}"
3177     echo "EBX available             ${ebx_available-no}"
3178     echo "EBP available             ${ebp_available-no}"
3179     echo "10 operands supported     ${ten_operands-no}"
3180 fi
3181 if enabled arm; then
3182     echo "ARMv5TE enabled           ${armv5te-no}"
3183     echo "ARMv6 enabled             ${armv6-no}"
3184     echo "ARMv6T2 enabled           ${armv6t2-no}"
3185     echo "ARM VFP enabled           ${armvfp-no}"
3186     echo "IWMMXT enabled            ${iwmmxt-no}"
3187     echo "NEON enabled              ${neon-no}"
3188 fi
3189 if enabled mips; then
3190     echo "MMI enabled               ${mmi-no}"
3191 fi
3192 if enabled ppc; then
3193     echo "AltiVec enabled           ${altivec-no}"
3194     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3195     echo "dcbzl available           ${dcbzl-no}"
3196 fi
3197 if enabled sparc; then
3198     echo "VIS enabled               ${vis-no}"
3199 fi
3200 echo "debug symbols             ${debug-no}"
3201 echo "strip symbols             ${stripping-no}"
3202 echo "optimizations             ${optimizations-no}"
3203 echo "static                    ${static-no}"
3204 echo "shared                    ${shared-no}"
3205 echo "postprocessing support    ${postproc-no}"
3206 echo "new filter support        ${avfilter-no}"
3207 echo "network support           ${network-no}"
3208 echo "threading support         ${thread_type-no}"
3209 echo "SDL support               ${sdl-no}"
3210 echo "Sun medialib support      ${mlib-no}"
3211 echo "AVISynth enabled          ${avisynth-no}"
3212 echo "libcelt enabled           ${libcelt-no}"
3213 echo "frei0r enabled            ${frei0r-no}"
3214 echo "libdc1394 support         ${libdc1394-no}"
3215 echo "libdirac enabled          ${libdirac-no}"
3216 echo "libfaac enabled           ${libfaac-no}"
3217 echo "libgsm enabled            ${libgsm-no}"
3218 echo "libmp3lame enabled        ${libmp3lame-no}"
3219 echo "libnut enabled            ${libnut-no}"
3220 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3221 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3222 echo "libopencv support         ${libopencv-no}"
3223 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3224 echo "librtmp enabled           ${librtmp-no}"
3225 echo "libschroedinger enabled   ${libschroedinger-no}"
3226 echo "libspeex enabled          ${libspeex-no}"
3227 echo "libtheora enabled         ${libtheora-no}"
3228 echo "libva enabled             ${vaapi-no}"
3229 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3230 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3231 echo "libvorbis enabled         ${libvorbis-no}"
3232 echo "libvpx enabled            ${libvpx-no}"
3233 echo "libx264 enabled           ${libx264-no}"
3234 echo "libxavs enabled           ${libxavs-no}"
3235 echo "libxvid enabled           ${libxvid-no}"
3236 echo "zlib enabled              ${zlib-no}"
3237 echo "bzlib enabled             ${bzlib-no}"
3238 echo
3239
3240 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3241     echo "Enabled ${type}s:"
3242     eval list=\$$(toupper $type)_LIST
3243     print_enabled '_*' $list | sort | pr -r -3 -t
3244     echo
3245 done
3246
3247 license="LGPL version 2.1 or later"
3248 if enabled nonfree; then
3249     license="nonfree and unredistributable"
3250 elif enabled gplv3; then
3251     license="GPL version 3 or later"
3252 elif enabled lgplv3; then
3253     license="LGPL version 3 or later"
3254 elif enabled gpl; then
3255     license="GPL version 2 or later"
3256 fi
3257
3258 echo "License: $license"
3259
3260 echo "Creating config.mak and config.h..."
3261
3262 # build tree in object directory if source path is different from current one
3263 if enabled source_path_used; then
3264     DIRS="
3265         doc
3266         libavcodec
3267         libavcodec/$arch
3268         libavdevice
3269         libavfilter
3270         libavfilter/$arch
3271         libavfilter/libmpcodecs
3272         libavfilter/libmpcodecs/libvo
3273         libavformat
3274         libavutil
3275         libavutil/$arch
3276         libpostproc
3277         libswscale
3278         libswscale/$arch
3279         tests
3280         tools
3281     "
3282     FILES="
3283         Makefile
3284         common.mak
3285         subdir.mak
3286         doc/texi2pod.pl
3287         libavcodec/Makefile
3288         libavcodec/${arch}/Makefile
3289         libavdevice/Makefile
3290         libavfilter/Makefile
3291         libavfilter/${arch}/Makefile
3292         libavformat/Makefile
3293         libavutil/Makefile
3294         libpostproc/Makefile
3295         libswscale/Makefile
3296     "
3297     map 'mkdir -p $v' $DIRS;
3298     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3299 fi
3300
3301 enabled stripping || strip="echo skipping strip"
3302
3303 config_files="$TMPH config.mak"
3304
3305 cat > config.mak <<EOF
3306 # Automatically generated by configure - do not modify!
3307 ifndef FFMPEG_CONFIG_MAK
3308 FFMPEG_CONFIG_MAK=1
3309 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3310 prefix=$prefix
3311 LIBDIR=\$(DESTDIR)$libdir
3312 SHLIBDIR=\$(DESTDIR)$shlibdir
3313 INCDIR=\$(DESTDIR)$incdir
3314 BINDIR=\$(DESTDIR)$bindir
3315 DATADIR=\$(DESTDIR)$datadir
3316 MANDIR=\$(DESTDIR)$mandir
3317 SRC_PATH="$source_path"
3318 SRC_PATH_BARE=$source_path
3319 CC_IDENT=$cc_ident
3320 ARCH=$arch
3321 CC=$cc
3322 AS=$as
3323 LD=$ld
3324 DEPCC=$dep_cc
3325 YASM=$yasmexe
3326 YASMDEP=$yasmexe
3327 AR=$ar
3328 RANLIB=$ranlib
3329 CP=cp -p
3330 LN_S=$ln_s
3331 STRIP=$strip
3332 CPPFLAGS=$CPPFLAGS
3333 CFLAGS=$CFLAGS
3334 ASFLAGS=$ASFLAGS
3335 CC_O=$CC_O
3336 LDFLAGS=$LDFLAGS
3337 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3338 SHFLAGS=$SHFLAGS
3339 YASMFLAGS=$YASMFLAGS
3340 BUILDSUF=$build_suffix
3341 FULLNAME=$FULLNAME
3342 LIBPREF=$LIBPREF
3343 LIBSUF=$LIBSUF
3344 LIBNAME=$LIBNAME
3345 SLIBPREF=$SLIBPREF
3346 SLIBSUF=$SLIBSUF
3347 EXESUF=$EXESUF
3348 EXTRA_VERSION=$extra_version
3349 DEPFLAGS=$DEPFLAGS
3350 CCDEP=$CCDEP
3351 ASDEP=$ASDEP
3352 CC_DEPFLAGS=$CC_DEPFLAGS
3353 AS_DEPFLAGS=$AS_DEPFLAGS
3354 HOSTCC=$host_cc
3355 HOSTCFLAGS=$host_cflags
3356 HOSTEXESUF=$HOSTEXESUF
3357 HOSTLDFLAGS=$host_ldflags
3358 HOSTLIBS=$host_libs
3359 TARGET_EXEC=$target_exec
3360 TARGET_PATH=$target_path
3361 SDL_LIBS=$sdl_libs
3362 SDL_CFLAGS=$sdl_cflags
3363 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3364 EXTRALIBS=$extralibs
3365 INSTALL=$install
3366 LIBTARGET=${LIBTARGET}
3367 SLIBNAME=${SLIBNAME}
3368 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3369 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3370 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3371 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3372 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3373 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3374 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3375 EOF
3376
3377 get_version(){
3378     name=$1
3379     file=$source_path/$2
3380     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3381     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3382     lcname=$(tolower $name)
3383     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3384     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3385 }
3386
3387 get_version LIBSWSCALE  libswscale/swscale.h
3388 get_version LIBPOSTPROC libpostproc/postprocess.h
3389 get_version LIBAVCODEC  libavcodec/version.h
3390 get_version LIBAVDEVICE libavdevice/avdevice.h
3391 get_version LIBAVFORMAT libavformat/version.h
3392 get_version LIBAVUTIL   libavutil/avutil.h
3393 get_version LIBAVFILTER libavfilter/avfilter.h
3394
3395 cat > $TMPH <<EOF
3396 /* Automatically generated by configure - do not modify! */
3397 #ifndef FFMPEG_CONFIG_H
3398 #define FFMPEG_CONFIG_H
3399 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3400 #define FFMPEG_LICENSE "$(c_escape $license)"
3401 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3402 #define CC_TYPE "$cc_type"
3403 #define CC_VERSION $cc_version
3404 #define restrict $_restrict
3405 #define EXTERN_PREFIX "${extern_prefix}"
3406 #define EXTERN_ASM ${extern_prefix}
3407 #define SLIBSUF "$SLIBSUF"
3408 EOF
3409
3410 test -n "$malloc_prefix" &&
3411     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3412
3413 if enabled small || disabled optimizations; then
3414     echo "#undef  av_always_inline"  >> $TMPH
3415     if enabled small; then
3416         echo "#define av_always_inline inline"  >> $TMPH
3417     else
3418         echo "#define av_always_inline av_unused"  >> $TMPH
3419     fi
3420 fi
3421
3422 if enabled yasm; then
3423     append config_files $TMPASM
3424     printf '' >$TMPASM
3425 fi
3426
3427 print_config ARCH_   "$config_files" $ARCH_LIST
3428 print_config HAVE_   "$config_files" $HAVE_LIST
3429 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3430                                      $CONFIG_EXTRA      \
3431                                      $DECODER_LIST      \
3432                                      $ENCODER_LIST      \
3433                                      $HWACCEL_LIST      \
3434                                      $PARSER_LIST       \
3435                                      $BSF_LIST          \
3436                                      $DEMUXER_LIST      \
3437                                      $MUXER_LIST        \
3438                                      $FILTER_LIST       \
3439                                      $PROTOCOL_LIST     \
3440                                      $INDEV_LIST        \
3441                                      $OUTDEV_LIST       \
3442
3443 cat >>config.mak <<EOF
3444 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3445 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3446 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3447 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3448 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3449 EOF
3450
3451 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3452 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3453
3454 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3455 cp_if_changed $TMPH config.h
3456 touch .config
3457
3458 enabled yasm && cp_if_changed $TMPASM config.asm
3459
3460 cat > $TMPH <<EOF
3461 /* Generated by ffconf */
3462 #ifndef AVUTIL_AVCONFIG_H
3463 #define AVUTIL_AVCONFIG_H
3464 EOF
3465
3466 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3467
3468 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3469
3470 cp_if_changed $TMPH libavutil/avconfig.h
3471
3472 test -n "$WARNINGS" && printf "\n$WARNINGS"
3473
3474 # build pkg-config files
3475
3476 pkgconfig_generate(){
3477 name=$1
3478 shortname=${name#lib}${build_suffix}
3479 comment=$2
3480 version=$3
3481 libs=$4
3482 requires=$5
3483 enabled ${name#lib} || return 0
3484 cat <<EOF > $name/$name.pc
3485 prefix=$prefix
3486 exec_prefix=\${prefix}
3487 libdir=$libdir
3488 includedir=$incdir
3489
3490 Name: $name
3491 Description: $comment
3492 Version: $version
3493 Requires: $(enabled shared || echo $requires)
3494 Requires.private: $(enabled shared && echo $requires)
3495 Conflicts:
3496 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3497 Libs.private: $(enabled shared && echo $libs)
3498 Cflags: -I\${includedir}
3499 EOF
3500 cat <<EOF > $name/$name-uninstalled.pc
3501 prefix=
3502 exec_prefix=
3503 libdir=\${pcfiledir}
3504 includedir=${source_path}
3505
3506 Name: $name
3507 Description: $comment
3508 Version: $version
3509 Requires: $requires
3510 Conflicts:
3511 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3512 Cflags: -I\${includedir}
3513 EOF
3514 }
3515
3516 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3517 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3518 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3519 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3520 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3521 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3522 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"