ffmpeg: use opt_acodec when setting audio codec in opt_target.
[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     libdc1394_1
1081     libdc1394_2
1082     llrint
1083     llrintf
1084     local_aligned_16
1085     local_aligned_8
1086     localtime_r
1087     log2
1088     log2f
1089     loongson
1090     lrint
1091     lrintf
1092     lzo1x_999_compress
1093     machine_ioctl_bt848_h
1094     machine_ioctl_meteor_h
1095     malloc_h
1096     MapViewOfFile
1097     memalign
1098     mkstemp
1099     mmap
1100     pld
1101     posix_memalign
1102     round
1103     roundf
1104     sdl
1105     sdl_video_size
1106     setmode
1107     sndio_h
1108     socklen_t
1109     soundcard_h
1110     poll_h
1111     setrlimit
1112     strerror_r
1113     strtok_r
1114     struct_addrinfo
1115     struct_ipv6_mreq
1116     struct_sockaddr_in6
1117     struct_sockaddr_sa_len
1118     struct_sockaddr_storage
1119     symver
1120     symver_gnu_asm
1121     symver_asm_label
1122     sys_mman_h
1123     sys_resource_h
1124     sys_select_h
1125     sys_soundcard_h
1126     sys_videoio_h
1127     ten_operands
1128     termios_h
1129     threads
1130     trunc
1131     truncf
1132     vfp_args
1133     VirtualAlloc
1134     winsock2_h
1135     xform_asm
1136     xmm_clobbers
1137     yasm
1138 "
1139
1140 # options emitted with CONFIG_ prefix but not available on command line
1141 CONFIG_EXTRA="
1142     avutil
1143     gplv3
1144     lgplv3
1145 "
1146
1147 CMDLINE_SELECT="
1148     $ARCH_EXT_LIST
1149     $CONFIG_LIST
1150     $THREADS_LIST
1151     asm
1152     cross_compile
1153     debug
1154     extra_warnings
1155     logging
1156     optimizations
1157     stripping
1158     symver
1159     yasm
1160 "
1161
1162 PATHS_LIST='
1163     bindir
1164     datadir
1165     incdir
1166     libdir
1167     mandir
1168     prefix
1169     shlibdir
1170 '
1171
1172 CMDLINE_SET="
1173     $PATHS_LIST
1174     ar
1175     arch
1176     as
1177     build_suffix
1178     cc
1179     cpu
1180     cross_prefix
1181     dep_cc
1182     extra_version
1183     host_cc
1184     host_cflags
1185     host_ldflags
1186     host_libs
1187     host_os
1188     install
1189     ld
1190     logfile
1191     malloc_prefix
1192     nm
1193     pkg_config
1194     samples
1195     source_path
1196     strip
1197     sysinclude
1198     sysroot
1199     target_exec
1200     target_os
1201     target_path
1202 "
1203
1204 CMDLINE_APPEND="
1205     extra_cflags
1206 "
1207
1208 # code dependency declarations
1209
1210 # architecture extensions
1211
1212 armv5te_deps="arm"
1213 armv6_deps="arm"
1214 armv6t2_deps="arm"
1215 armvfp_deps="arm"
1216 iwmmxt_deps="arm"
1217 neon_deps="arm"
1218 vfpv3_deps="armvfp"
1219
1220 mmi_deps="mips"
1221
1222 altivec_deps="ppc"
1223 ppc4xx_deps="ppc"
1224
1225 vis_deps="sparc"
1226
1227 x86_64_suggest="cmov fast_cmov"
1228 amd3dnow_deps="mmx"
1229 amd3dnowext_deps="amd3dnow"
1230 mmx_deps="x86"
1231 mmx2_deps="mmx"
1232 sse_deps="mmx"
1233 ssse3_deps="sse"
1234 avx_deps="ssse3"
1235
1236 aligned_stack_if_any="ppc x86"
1237 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1238 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1239 fast_unaligned_if_any="armv6 ppc x86"
1240
1241 need_memalign="altivec neon sse"
1242 inline_asm_deps="!tms470"
1243
1244 symver_if_any="symver_asm_label symver_gnu_asm"
1245
1246 # subsystems
1247 dct_select="rdft"
1248 mdct_select="fft"
1249 rdft_select="fft"
1250 mpegaudiodsp_select="dct"
1251
1252 # decoders / encoders / hardware accelerators
1253 aac_decoder_select="mdct sinewin"
1254 aac_encoder_select="mdct sinewin"
1255 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1256 ac3_decoder_select="mdct ac3dsp ac3_parser"
1257 ac3_encoder_select="mdct ac3dsp"
1258 ac3_fixed_encoder_select="mdct ac3dsp"
1259 alac_encoder_select="lpc"
1260 amrnb_decoder_select="lsp"
1261 amrwb_decoder_select="lsp"
1262 atrac1_decoder_select="mdct sinewin"
1263 atrac3_decoder_select="mdct"
1264 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1265 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1266 cavs_decoder_select="golomb"
1267 cook_decoder_select="mdct sinewin"
1268 cscd_decoder_suggest="zlib"
1269 dca_decoder_select="mdct"
1270 dnxhd_encoder_select="aandct"
1271 dxa_decoder_select="zlib"
1272 eac3_decoder_select="ac3_decoder"
1273 eac3_encoder_select="mdct ac3dsp"
1274 eamad_decoder_select="aandct"
1275 eatgq_decoder_select="aandct"
1276 eatqi_decoder_select="aandct"
1277 ffv1_decoder_select="golomb"
1278 flac_decoder_select="golomb"
1279 flac_encoder_select="golomb lpc"
1280 flashsv_decoder_select="zlib"
1281 flashsv_encoder_select="zlib"
1282 flashsv2_encoder_select="zlib"
1283 flv_decoder_select="h263_decoder"
1284 flv_encoder_select="h263_encoder"
1285 fraps_decoder_select="huffman"
1286 h261_encoder_select="aandct"
1287 h263_decoder_select="h263_parser"
1288 h263_encoder_select="aandct"
1289 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1290 h263i_decoder_select="h263_decoder"
1291 h263p_encoder_select="h263_encoder"
1292 h264_decoder_select="golomb h264dsp h264pred"
1293 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1294 h264_dxva2_hwaccel_deps="dxva2api_h"
1295 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1296 h264_vaapi_hwaccel_select="vaapi"
1297 h264_vdpau_decoder_select="vdpau h264_decoder"
1298 imc_decoder_select="fft mdct sinewin"
1299 jpegls_decoder_select="golomb"
1300 jpegls_encoder_select="golomb"
1301 ljpeg_encoder_select="aandct"
1302 loco_decoder_select="golomb"
1303 mjpeg_encoder_select="aandct"
1304 mlp_decoder_select="mlp_parser"
1305 mp1_decoder_select="mpegaudiodsp"
1306 mp2_decoder_select="mpegaudiodsp"
1307 mp3adu_decoder_select="mpegaudiodsp"
1308 mp3_decoder_select="mpegaudiodsp"
1309 mp3on4_decoder_select="mpegaudiodsp"
1310 mp1float_decoder_select="mpegaudiodsp"
1311 mp2float_decoder_select="mpegaudiodsp"
1312 mp3adufloat_decoder_select="mpegaudiodsp"
1313 mp3float_decoder_select="mpegaudiodsp"
1314 mp3on4float_decoder_select="mpegaudiodsp"
1315 mpeg1video_encoder_select="aandct"
1316 mpeg2video_encoder_select="aandct"
1317 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1318 mpeg4_encoder_select="h263_encoder"
1319 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1320 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1321 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1322 mpeg2_crystalhd_decoder_select="crystalhd"
1323 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1324 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1325 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1326 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1327 mpeg4_crystalhd_decoder_select="crystalhd"
1328 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1329 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1330 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1331 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1332 msmpeg4_crystalhd_decoder_select="crystalhd"
1333 msmpeg4v1_decoder_select="h263_decoder"
1334 msmpeg4v1_encoder_select="h263_encoder"
1335 msmpeg4v2_decoder_select="h263_decoder"
1336 msmpeg4v2_encoder_select="h263_encoder"
1337 msmpeg4v3_decoder_select="h263_decoder"
1338 msmpeg4v3_encoder_select="h263_encoder"
1339 nellymoser_decoder_select="mdct sinewin"
1340 nellymoser_encoder_select="mdct sinewin"
1341 png_decoder_select="zlib"
1342 png_encoder_select="zlib"
1343 qcelp_decoder_select="lsp"
1344 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1345 ra_144_encoder_select="lpc"
1346 rv10_decoder_select="h263_decoder"
1347 rv10_encoder_select="h263_encoder"
1348 rv20_decoder_select="h263_decoder"
1349 rv20_encoder_select="h263_encoder"
1350 rv30_decoder_select="golomb h264pred"
1351 rv40_decoder_select="golomb h264pred"
1352 shorten_decoder_select="golomb"
1353 sipr_decoder_select="lsp"
1354 snow_decoder_select="dwt"
1355 snow_encoder_select="aandct dwt"
1356 sonic_decoder_select="golomb"
1357 sonic_encoder_select="golomb"
1358 sonic_ls_encoder_select="golomb"
1359 svq1_encoder_select="aandct"
1360 svq3_decoder_select="golomb h264dsp h264pred"
1361 svq3_decoder_suggest="zlib"
1362 theora_decoder_select="vp3_decoder"
1363 tiff_decoder_suggest="zlib"
1364 tiff_encoder_suggest="zlib"
1365 truehd_decoder_select="mlp_decoder"
1366 tscc_decoder_select="zlib"
1367 twinvq_decoder_select="mdct lsp sinewin"
1368 vc1_decoder_select="h263_decoder"
1369 vc1_crystalhd_decoder_select="crystalhd"
1370 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1371 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1372 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1373 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1374 vorbis_decoder_select="mdct"
1375 vorbis_encoder_select="mdct"
1376 vp6_decoder_select="huffman"
1377 vp6a_decoder_select="vp6_decoder"
1378 vp6f_decoder_select="vp6_decoder"
1379 vp8_decoder_select="h264pred"
1380 wmapro_decoder_select="mdct sinewin"
1381 wmav1_decoder_select="mdct sinewin"
1382 wmav1_encoder_select="mdct sinewin"
1383 wmav2_decoder_select="mdct sinewin"
1384 wmav2_encoder_select="mdct sinewin"
1385 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1386 wmv1_decoder_select="h263_decoder"
1387 wmv1_encoder_select="h263_encoder"
1388 wmv2_decoder_select="h263_decoder"
1389 wmv2_encoder_select="h263_encoder"
1390 wmv3_decoder_select="vc1_decoder"
1391 wmv3_crystalhd_decoder_select="crystalhd"
1392 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1393 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1394 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1395 zlib_decoder_select="zlib"
1396 zlib_encoder_select="zlib"
1397 zmbv_decoder_select="zlib"
1398 zmbv_encoder_select="zlib"
1399
1400 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1401 vaapi_deps="va_va_h"
1402 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1403
1404 # parsers
1405 h264_parser_select="golomb h264dsp h264pred"
1406
1407 # external libraries
1408 libcelt_decoder_deps="libcelt"
1409 libdirac_decoder_deps="libdirac !libschroedinger"
1410 libdirac_encoder_deps="libdirac"
1411 libfaac_encoder_deps="libfaac"
1412 libgsm_decoder_deps="libgsm"
1413 libgsm_encoder_deps="libgsm"
1414 libgsm_ms_decoder_deps="libgsm"
1415 libgsm_ms_encoder_deps="libgsm"
1416 libmp3lame_encoder_deps="libmp3lame"
1417 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1418 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1419 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1420 libopenjpeg_decoder_deps="libopenjpeg"
1421 libschroedinger_decoder_deps="libschroedinger"
1422 libschroedinger_encoder_deps="libschroedinger"
1423 libspeex_decoder_deps="libspeex"
1424 libtheora_encoder_deps="libtheora"
1425 libvo_aacenc_encoder_deps="libvo_aacenc"
1426 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1427 libvorbis_encoder_deps="libvorbis"
1428 libvpx_decoder_deps="libvpx"
1429 libvpx_encoder_deps="libvpx"
1430 libx264_encoder_deps="libx264"
1431 libxavs_encoder_deps="libxavs"
1432 libxvid_encoder_deps="libxvid"
1433
1434 # demuxers / muxers
1435 ac3_demuxer_select="ac3_parser"
1436 asf_stream_muxer_select="asf_muxer"
1437 avisynth_demuxer_deps="avisynth"
1438 dirac_demuxer_select="dirac_parser"
1439 eac3_demuxer_select="ac3_parser"
1440 flac_demuxer_select="flac_parser"
1441 ipod_muxer_select="mov_muxer"
1442 libnut_demuxer_deps="libnut"
1443 libnut_muxer_deps="libnut"
1444 matroska_audio_muxer_select="matroska_muxer"
1445 matroska_demuxer_suggest="zlib bzlib"
1446 mov_demuxer_suggest="zlib"
1447 mp3_demuxer_select="mpegaudio_parser"
1448 mp4_muxer_select="mov_muxer"
1449 mpegtsraw_demuxer_select="mpegts_demuxer"
1450 mxf_d10_muxer_select="mxf_muxer"
1451 ogg_demuxer_select="golomb"
1452 psp_muxer_select="mov_muxer"
1453 rtp_demuxer_select="sdp_demuxer"
1454 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1455 rtsp_demuxer_select="http_protocol rtpdec"
1456 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1457 sap_demuxer_select="sdp_demuxer"
1458 sap_muxer_select="rtp_muxer rtp_protocol"
1459 sdp_demuxer_select="rtpdec"
1460 spdif_muxer_select="aac_parser"
1461 tg2_muxer_select="mov_muxer"
1462 tgp_muxer_select="mov_muxer"
1463 w64_demuxer_deps="wav_demuxer"
1464
1465 # indevs / outdevs
1466 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1467 alsa_outdev_deps="alsa_asoundlib_h"
1468 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1469 dshow_indev_deps="IBaseFilter"
1470 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1471 dv1394_indev_deps="dv1394 dv_demuxer"
1472 fbdev_indev_deps="linux_fb_h"
1473 jack_indev_deps="jack_jack_h sem_timedwait"
1474 libdc1394_indev_deps="libdc1394"
1475 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1476 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1477 sdl_outdev_deps="sdl"
1478 sndio_indev_deps="sndio_h"
1479 sndio_outdev_deps="sndio_h"
1480 v4l_indev_deps="linux_videodev_h"
1481 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1482 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1483 vfwcap_indev_extralibs="-lavicap32"
1484 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1485 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1486
1487 # protocols
1488 gopher_protocol_deps="network"
1489 http_protocol_deps="network"
1490 http_protocol_select="tcp_protocol"
1491 mmsh_protocol_select="http_protocol"
1492 mmst_protocol_deps="network"
1493 rtmp_protocol_select="tcp_protocol"
1494 rtp_protocol_select="udp_protocol"
1495 tcp_protocol_deps="network"
1496 udp_protocol_deps="network pthreads"
1497
1498 # filters
1499 blackframe_filter_deps="gpl"
1500 cropdetect_filter_deps="gpl"
1501 drawtext_filter_deps="libfreetype"
1502 frei0r_filter_deps="frei0r dlopen strtok_r"
1503 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1504 hqdn3d_filter_deps="gpl"
1505 movie_filter_deps="avcodec avformat"
1506 mp_filter_deps="gpl avcodec"
1507 ocv_filter_deps="libopencv"
1508 scale_filter_deps="swscale"
1509 yadif_filter_deps="gpl"
1510
1511 # libraries
1512 avdevice_deps="avcodec avformat"
1513 avformat_deps="avcodec"
1514 postproc_deps="gpl"
1515
1516 # programs
1517 ffmpeg_deps="avcodec avformat swscale"
1518 ffmpeg_select="buffer_filter"
1519 ffplay_deps="avcodec avformat swscale sdl"
1520 ffplay_select="rdft"
1521 ffprobe_deps="avcodec avformat"
1522 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1523 ffserver_extralibs='$ldl'
1524
1525 doc_deps="texi2html"
1526
1527 # tests
1528
1529 test_deps(){
1530     suf1=$1
1531     suf2=$2
1532     shift 2
1533     for v; do
1534         dep=${v%=*}
1535         tests=${v#*=}
1536         for name in ${tests}; do
1537             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1538         done
1539     done
1540 }
1541
1542 set_ne_test_deps(){
1543     eval ${1}_be_test_deps="bigendian"
1544     eval ${1}_le_test_deps="!bigendian"
1545 }
1546
1547 test_deps _encoder _decoder                                             \
1548     adpcm_g726=g726                                                     \
1549     adpcm_ima_qt                                                        \
1550     adpcm_ima_wav                                                       \
1551     adpcm_ms                                                            \
1552     adpcm_swf                                                           \
1553     adpcm_yamaha=adpcm_yam                                              \
1554     alac                                                                \
1555     asv1                                                                \
1556     asv2                                                                \
1557     bmp                                                                 \
1558     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1559     dvvideo="dv dv50"                                                   \
1560     ffv1                                                                \
1561     flac                                                                \
1562     flashsv                                                             \
1563     flv                                                                 \
1564     gif                                                                 \
1565     h261                                                                \
1566     h263="h263 h263p"                                                   \
1567     huffyuv                                                             \
1568     jpegls                                                              \
1569     mjpeg="jpg mjpeg ljpeg"                                             \
1570     mp2                                                                 \
1571     mpeg1video="mpeg mpeg1b"                                            \
1572     mpeg2video="mpeg2 mpeg2thread"                                      \
1573     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1574     msmpeg4v3=msmpeg4                                                   \
1575     msmpeg4v2                                                           \
1576     pbm=pbmpipe                                                         \
1577     pcx                                                                 \
1578     pgm="pgm pgmpipe"                                                   \
1579     png                                                                 \
1580     ppm="ppm ppmpipe"                                                   \
1581     rawvideo="rgb yuv"                                                  \
1582     roq                                                                 \
1583     rv10                                                                \
1584     rv20                                                                \
1585     sgi                                                                 \
1586     snow="snow snowll"                                                  \
1587     svq1                                                                \
1588     targa=tga                                                           \
1589     tiff                                                                \
1590     wmav1                                                               \
1591     wmav2                                                               \
1592     wmv1                                                                \
1593     wmv2                                                                \
1594
1595 test_deps _muxer _demuxer                                               \
1596     aiff                                                                \
1597     pcm_alaw=alaw                                                       \
1598     asf                                                                 \
1599     au                                                                  \
1600     avi                                                                 \
1601     dv=dv_fmt                                                           \
1602     ffm                                                                 \
1603     flv=flv_fmt                                                         \
1604     gxf                                                                 \
1605     matroska=mkv                                                        \
1606     mmf                                                                 \
1607     mov                                                                 \
1608     pcm_mulaw=mulaw                                                     \
1609     mxf                                                                 \
1610     nut                                                                 \
1611     ogg                                                                 \
1612     rawvideo=pixfmt                                                     \
1613     rm                                                                  \
1614     swf                                                                 \
1615     mpegts=ts                                                           \
1616     voc                                                                 \
1617     wav                                                                 \
1618     yuv4mpegpipe=yuv4mpeg                                               \
1619
1620 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1621 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1622
1623 set_ne_test_deps pixdesc
1624 set_ne_test_deps pixfmts_copy
1625 set_ne_test_deps pixfmts_crop
1626 set_ne_test_deps pixfmts_hflip
1627 set_ne_test_deps pixfmts_null
1628 set_ne_test_deps pixfmts_pad
1629 set_ne_test_deps pixfmts_scale
1630 set_ne_test_deps pixfmts_vflip
1631
1632 # default parameters
1633
1634 logfile="config.log"
1635
1636 # installation paths
1637 prefix_default="/usr/local"
1638 bindir_default='${prefix}/bin'
1639 datadir_default='${prefix}/share/ffmpeg'
1640 incdir_default='${prefix}/include'
1641 libdir_default='${prefix}/lib'
1642 mandir_default='${prefix}/share/man'
1643 shlibdir_default="$libdir_default"
1644
1645 # toolchain
1646 ar_default="ar"
1647 cc_default="gcc"
1648 cc_version=\"unknown\"
1649 host_cc_default="gcc"
1650 install="install"
1651 ln_s="ln -sf"
1652 nm_default="nm"
1653 objformat="elf"
1654 pkg_config_default=pkg-config
1655 ranlib="ranlib"
1656 strip_default="strip"
1657 yasmexe="yasm"
1658 nogas=":"
1659
1660 nm_opts='-g'
1661
1662 # machine
1663 arch_default=$(uname -m)
1664 cpu="generic"
1665
1666 # OS
1667 target_os_default=$(tolower $(uname -s))
1668 host_os=$target_os_default
1669
1670 # configurable options
1671 enable avcodec
1672 enable avdevice
1673 enable avfilter
1674 enable avformat
1675 enable avutil
1676 enable asm
1677 enable debug
1678 enable doc
1679 enable fastdiv
1680 enable ffmpeg
1681 enable ffplay
1682 enable ffprobe
1683 enable ffserver
1684 enable network
1685 enable optimizations
1686 enable postproc
1687 enable protocols
1688 enable static
1689 enable stripping
1690 enable swscale
1691 enable swscale_alpha
1692
1693 # build settings
1694 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1695 FFSERVERLDFLAGS=-Wl,-E
1696 LIBPREF="lib"
1697 LIBSUF=".a"
1698 FULLNAME='$(NAME)$(BUILDSUF)'
1699 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1700 SLIBPREF="lib"
1701 SLIBSUF=".so"
1702 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1703 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1704 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1705 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1706
1707 CC_O='-o $@'
1708
1709 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1710 host_libs='-lm'
1711
1712 target_path='$(CURDIR)'
1713
1714 # since the object filename is not given with the -MM flag, the compiler
1715 # is only able to print the basename, and we must add the path ourselves
1716 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1717 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1718
1719 # find source path
1720 source_path="$(dirname "$0")"
1721 enable source_path_used
1722 if test -f configure; then
1723     source_path="$(pwd)"
1724     disable source_path_used
1725 else
1726     source_path="$(cd "$source_path"; pwd)"
1727     echo "$source_path" | grep -q '[[:blank:]]' &&
1728         die "Out of tree builds are impossible with whitespace in source path."
1729     test -e "$source_path/config.h" &&
1730         die "Out of tree builds are impossible with config.h in source dir."
1731 fi
1732
1733 for v in "$@"; do
1734     r=${v#*=}
1735     l=${v%"$r"}
1736     r=$(sh_quote "$r")
1737     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1738 done
1739
1740 find_things(){
1741     thing=$1
1742     pattern=$2
1743     file=$source_path/$3
1744     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1745 }
1746
1747 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1748 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1749 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1750 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1751 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1752 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1753 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1754 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1755 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1756 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1757 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1758
1759 find_tests(){
1760     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1761 }
1762
1763 ACODEC_TESTS=$(find_tests acodec)
1764 VCODEC_TESTS=$(find_tests vsynth1)
1765 LAVF_TESTS=$(find_tests lavf)
1766 LAVFI_TESTS=$(find_tests lavfi)
1767 SEEK_TESTS=$(find_tests seek seek_)
1768
1769 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1770
1771 for n in $COMPONENT_LIST; do
1772     v=$(toupper ${n%s})_LIST
1773     eval enable \$$v
1774     eval ${n}_if_any="\$$v"
1775 done
1776
1777 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1778
1779 die_unknown(){
1780     echo "Unknown option \"$1\"."
1781     echo "See $0 --help for available options."
1782     exit 1
1783 }
1784
1785 show_list() {
1786     suffix=_$1
1787     shift
1788     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1789     exit 0
1790 }
1791
1792 for opt do
1793     optval="${opt#*=}"
1794     case "$opt" in
1795     --extra-ldflags=*) add_ldflags $optval
1796     ;;
1797     --extra-libs=*) add_extralibs $optval
1798     ;;
1799     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1800     ;;
1801     --enable-debug=*) debuglevel="$optval"
1802     ;;
1803     --disable-everything)
1804     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1805     ;;
1806     --enable-*=*|--disable-*=*)
1807     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1808     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1809     eval list=\$$(toupper $thing)_LIST
1810     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1811     $action $(filter "$name" $list)
1812     ;;
1813     --enable-?*|--disable-?*)
1814     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1815     if is_in $option $COMPONENT_LIST; then
1816         test $action = disable && action=unset
1817         eval $action \$$(toupper ${option%s})_LIST
1818     elif is_in $option $CMDLINE_SELECT; then
1819         $action $option
1820     else
1821         die_unknown $opt
1822     fi
1823     ;;
1824     --list-*)
1825         NAME="${opt#--list-}"
1826         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1827         NAME=${NAME%s}
1828         eval show_list $NAME \$$(toupper $NAME)_LIST
1829     ;;
1830     --help|-h) show_help
1831     ;;
1832     *)
1833     optname="${opt%%=*}"
1834     optname="${optname#--}"
1835     optname=$(echo "$optname" | sed 's/-/_/g')
1836     if is_in $optname $CMDLINE_SET; then
1837         eval $optname='$optval'
1838     elif is_in $optname $CMDLINE_APPEND; then
1839         append $optname "$optval"
1840     else
1841          die_unknown $opt
1842     fi
1843     ;;
1844     esac
1845 done
1846
1847 disabled logging && logfile=/dev/null
1848
1849 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1850 set >> $logfile
1851
1852 test -n "$cross_prefix" && enable cross_compile
1853
1854 if enabled cross_compile; then
1855     test -n "$arch" && test -n "$target_os" ||
1856         die "Must specify target arch and OS when cross-compiling"
1857 fi
1858
1859 set_default arch target_os
1860
1861 ar_default="${cross_prefix}${ar_default}"
1862 cc_default="${cross_prefix}${cc_default}"
1863 nm_default="${cross_prefix}${nm_default}"
1864 pkg_config_default="${cross_prefix}${pkg_config_default}"
1865 ranlib="${cross_prefix}${ranlib}"
1866 strip_default="${cross_prefix}${strip_default}"
1867
1868 sysinclude_default="${sysroot}/usr/include"
1869
1870 set_default cc nm pkg_config strip sysinclude
1871 enabled cross_compile || host_cc_default=$cc
1872 set_default host_cc
1873
1874 if ! $pkg_config --version >/dev/null 2>&1; then
1875     warn "$pkg_config not found, library detection may fail."
1876     pkg_config=false
1877 fi
1878
1879 exesuf() {
1880     case $1 in
1881         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1882     esac
1883 }
1884
1885 EXESUF=$(exesuf $target_os)
1886 HOSTEXESUF=$(exesuf $host_os)
1887
1888 # set temporary file name
1889 : ${TMPDIR:=$TEMPDIR}
1890 : ${TMPDIR:=$TMP}
1891 : ${TMPDIR:=/tmp}
1892
1893 if ! check_cmd mktemp -u XXXXXX; then
1894     # simple replacement for missing mktemp
1895     # NOT SAFE FOR GENERAL USE
1896     mktemp(){
1897         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1898     }
1899 fi
1900
1901 tmpfile(){
1902     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1903         (set -C; exec > $tmp) 2>/dev/null ||
1904         die "Unable to create temporary file in $TMPDIR."
1905     append TMPFILES $tmp
1906     eval $1=$tmp
1907 }
1908
1909 trap 'rm -f -- $TMPFILES' EXIT
1910
1911 tmpfile TMPC  .c
1912 tmpfile TMPE  $EXESUF
1913 tmpfile TMPH  .h
1914 tmpfile TMPO  .o
1915 tmpfile TMPS  .S
1916 tmpfile TMPV  .ver
1917 tmpfile TMPSH .sh
1918 tmpfile TMPASM .asm
1919
1920 unset -f mktemp
1921
1922 chmod +x $TMPE
1923
1924 # make sure we can execute files in $TMPDIR
1925 cat > $TMPSH 2>> $logfile <<EOF
1926 #! /bin/sh
1927 EOF
1928 chmod +x $TMPSH >> $logfile 2>&1
1929 if ! $TMPSH >> $logfile 2>&1; then
1930     cat <<EOF
1931 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1932 variable to another directory and make sure that it is not mounted noexec.
1933 EOF
1934     die "Sanity test failed."
1935 fi
1936
1937 filter_cflags=echo
1938 filter_cppflags=echo
1939 filter_asflags=echo
1940
1941 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1942     cc_type=llvm_gcc
1943     cc_version=__VERSION__
1944     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1945     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1946     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1947     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1948     speed_cflags='-O3'
1949     size_cflags='-Os'
1950 elif $cc -v 2>&1 | grep -qi ^gcc; then
1951     cc_type=gcc
1952     cc_version=__VERSION__
1953     gcc_version=$($cc --version | head -n1)
1954     gcc_basever=$($cc -dumpversion)
1955     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1956     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1957     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1958     if ! $cc -dumpversion | grep -q '^2\.'; then
1959         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1960         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1961     fi
1962     speed_cflags='-O3'
1963     size_cflags='-Os'
1964 elif $cc --version 2>/dev/null | grep -q Intel; then
1965     cc_type=icc
1966     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1967     cc_ident=$($cc --version | head -n1)
1968     icc_version=$($cc -dumpversion)
1969     CC_DEPFLAGS='-MMD'
1970     AS_DEPFLAGS='-MMD'
1971     speed_cflags='-O3'
1972     size_cflags='-Os'
1973     noopt_cflags='-O1'
1974 elif $cc -v 2>&1 | grep -q xlc; then
1975     cc_type=xlc
1976     cc_version="AV_STRINGIFY(__IBMC__)"
1977     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1978     speed_cflags='-O5'
1979     size_cflags='-O5 -qcompact'
1980 elif $cc -V 2>/dev/null | grep -q Compaq; then
1981     cc_type=ccc
1982     cc_version="AV_STRINGIFY(__DECC_VER)"
1983     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1984     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1985     debuglevel=3
1986     add_ldflags -Wl,-z,now # calls to libots crash without this
1987     speed_cflags='-fast'
1988     size_cflags='-O1'
1989 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1990     test -d "$sysroot" || die "No valid sysroot specified."
1991     cc_type=armcc
1992     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1993     cc_ident=$($cc --vsn | head -n1)
1994     armcc_conf="$PWD/armcc.conf"
1995     $cc --arm_linux_configure                 \
1996         --arm_linux_config_file="$armcc_conf" \
1997         --configure_sysroot="$sysroot"        \
1998         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1999         die "Error creating armcc configuration file."
2000     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2001     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2002     as_default="${cross_prefix}gcc"
2003     CC_DEPFLAGS='-MMD'
2004     AS_DEPFLAGS='-MMD'
2005     speed_cflags='-O3'
2006     size_cflags='-Os'
2007     filter_asflags="filter_out -W${armcc_opt}*"
2008 elif $cc -version 2>/dev/null | grep -q TMS470; then
2009     cc_type=tms470
2010     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2011     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2012     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2013     CC_O='-fr=$(@D)'
2014     as_default="${cross_prefix}gcc"
2015     ld_default="${cross_prefix}gcc"
2016     TMPO=$(basename $TMPC .c).o
2017     append TMPFILES $TMPO
2018     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2019     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2020     AS_DEPFLAGS='-MMD'
2021     speed_cflags='-O3 -mf=5'
2022     size_cflags='-O3 -mf=2'
2023     filter_cflags=tms470_flags
2024     tms470_flags(){
2025         for flag; do
2026             case $flag in
2027                 -march=*|-mcpu=*)
2028                     case "${flag#*=}" in
2029                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2030                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2031                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2032                         armv6*|arm11*)          echo -mv=6   ;;
2033                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2034                                                 echo -mv=5e  ;;
2035                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2036                     esac
2037                     ;;
2038                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2039                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2040                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2041                 -msoft-float)   echo --float_support=vfplib       ;;
2042                 -O[0-3]|-mf=*)  echo $flag                        ;;
2043                 -g)             echo -g -mn                       ;;
2044                 -pds=*)         echo $flag                        ;;
2045             esac
2046         done
2047     }
2048 elif $cc -v 2>&1 | grep -q clang; then
2049     cc_type=clang
2050     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2051         cc_version=__clang_version__ || cc_version=__VERSION__
2052     cc_ident=$($cc --version | head -n1)
2053     CC_DEPFLAGS='-MMD'
2054     AS_DEPFLAGS='-MMD'
2055     speed_cflags='-O3'
2056     size_cflags='-Os'
2057 elif $cc -V 2>&1 | grep -q Sun; then
2058     cc_type=suncc
2059     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2060     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2061     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2062     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2063     speed_cflags='-O5'
2064     size_cflags='-O5 -xspace'
2065     filter_cflags=suncc_flags
2066     suncc_flags(){
2067         for flag; do
2068             case $flag in
2069                 -march=*|-mcpu=*)
2070                     case "${flag#*=}" in
2071                         native)                   echo -xtarget=native       ;;
2072                         v9|niagara)               echo -xarch=sparc          ;;
2073                         ultrasparc)               echo -xarch=sparcvis       ;;
2074                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2075                         i586|pentium)             echo -xchip=pentium        ;;
2076                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2077                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2078                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2079                         pentium4*)          echo -xtarget=pentium4           ;;
2080                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2081                         *-sse3)             echo -xarch=sse3                 ;;
2082                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2083                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2084                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2085                         k8|opteron|athlon64|athlon-fx)
2086                                                   echo -xarch=sse2a          ;;
2087                         athlon*)                  echo -xarch=pentium_proa   ;;
2088                     esac
2089                     ;;
2090                 -std=c99)             echo -xc99              ;;
2091                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2092                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2093                 -W*,*)                echo $flag              ;;
2094                 -f*-*|-W*)                                    ;;
2095                 *)                    echo $flag              ;;
2096             esac
2097         done
2098     }
2099 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2100     cc_type=pathscale
2101     cc_version=__PATHSCALE__
2102     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2103     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2104     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2105     speed_cflags='-O2'
2106     size_cflags='-Os'
2107 elif $cc -v 2>&1 | grep -q Open64; then
2108     cc_type=open64
2109     cc_version=__OPEN64__
2110     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2111     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2112     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2113     speed_cflags='-O2'
2114     size_cflags='-Os'
2115 fi
2116
2117 test -n "$cc_type" && enable $cc_type ||
2118     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2119
2120 : ${as_default:=$cc}
2121 : ${dep_cc_default:=$cc}
2122 : ${ld_default:=$cc}
2123 set_default ar as dep_cc ld
2124
2125 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2126 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2127
2128 add_cflags $extra_cflags
2129 add_asflags $extra_cflags
2130
2131 if test -n "$sysroot"; then
2132     case "$cc_type" in
2133         gcc|llvm_gcc|clang)
2134             add_cppflags --sysroot="$sysroot"
2135             add_ldflags --sysroot="$sysroot"
2136         ;;
2137         tms470)
2138             add_cppflags -I"$sysinclude"
2139             add_ldflags  --sysroot="$sysroot"
2140         ;;
2141     esac
2142 fi
2143
2144 if test "$cpu" = host; then
2145     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2146
2147     case "$cc_type" in
2148         gcc|llvm_gcc)
2149             check_native(){
2150                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2151                 sed -n "/$1=/{
2152                             s/.*$1=\\([^ ]*\\).*/\\1/
2153                             p
2154                             q
2155                         }" $TMPE
2156             }
2157             cpu=$(check_native -march || check_native -mcpu)
2158         ;;
2159     esac
2160
2161     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2162 fi
2163
2164 # Deal with common $arch aliases
2165 case "$arch" in
2166     arm*)
2167         arch="arm"
2168     ;;
2169     mips|mipsel|IP*)
2170         arch="mips"
2171     ;;
2172     mips64*)
2173         arch="mips"
2174         subarch="mips64"
2175     ;;
2176     parisc|hppa)
2177         arch="parisc"
2178     ;;
2179     parisc64|hppa64)
2180         arch="parisc"
2181         subarch="parisc64"
2182     ;;
2183     "Power Macintosh"|ppc|powerpc)
2184         arch="ppc"
2185     ;;
2186     ppc64|powerpc64)
2187         arch="ppc"
2188         subarch="ppc64"
2189     ;;
2190     s390|s390x)
2191         arch="s390"
2192     ;;
2193     sh4|sh)
2194         arch="sh4"
2195     ;;
2196     sun4u|sparc64)
2197         arch="sparc"
2198         subarch="sparc64"
2199     ;;
2200     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2201         arch="x86"
2202     ;;
2203 esac
2204
2205 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2206 enable $arch
2207
2208 # Add processor-specific flags
2209 if test "$cpu" = generic; then
2210     : do nothing
2211 elif enabled ppc; then
2212
2213     case $(tolower $cpu) in
2214         601|ppc601|powerpc601)
2215             cpuflags="-mcpu=601"
2216             disable altivec
2217         ;;
2218         603*|ppc603*|powerpc603*)
2219             cpuflags="-mcpu=603"
2220             disable altivec
2221         ;;
2222         604*|ppc604*|powerpc604*)
2223             cpuflags="-mcpu=604"
2224             disable altivec
2225         ;;
2226         g3|75*|ppc75*|powerpc75*)
2227             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2228             disable altivec
2229         ;;
2230         g4|745*|ppc745*|powerpc745*)
2231             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2232         ;;
2233         74*|ppc74*|powerpc74*)
2234             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2235         ;;
2236         g5|970|ppc970|powerpc970|power4*)
2237             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2238         ;;
2239         cell)
2240             cpuflags="-mcpu=cell"
2241             enable ldbrx
2242         ;;
2243         e500v2)
2244             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2245             disable altivec
2246         ;;
2247         e500)
2248             cpuflags="-mcpu=8540 -mhard-float"
2249             disable altivec
2250         ;;
2251     esac
2252
2253 elif enabled x86; then
2254
2255     case $cpu in
2256         i[345]86|pentium)
2257             cpuflags="-march=$cpu"
2258             disable mmx
2259         ;;
2260         # targets that do NOT support conditional mov (cmov)
2261         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2262             cpuflags="-march=$cpu"
2263             disable cmov
2264         ;;
2265         # targets that do support conditional mov (cmov)
2266         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2267             cpuflags="-march=$cpu"
2268             enable cmov
2269             enable fast_cmov
2270         ;;
2271         # targets that do support conditional mov but on which it's slow
2272         pentium4|pentium4m|prescott|nocona)
2273             cpuflags="-march=$cpu"
2274             enable cmov
2275             disable fast_cmov
2276         ;;
2277     esac
2278
2279 elif enabled sparc; then
2280
2281     case $cpu in
2282         niagara)
2283             cpuflags="-mcpu=$cpu"
2284             disable vis
2285         ;;
2286         sparc64)
2287             cpuflags="-mcpu=v9"
2288         ;;
2289     esac
2290
2291 elif enabled arm; then
2292
2293     case $cpu in
2294         armv*)
2295             cpuflags="-march=$cpu"
2296             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2297         ;;
2298         *)
2299             cpuflags="-mcpu=$cpu"
2300             case $cpu in
2301                 cortex-a*)                               subarch=armv7a  ;;
2302                 cortex-r*)                               subarch=armv7r  ;;
2303                 cortex-m*)                               subarch=armv7m  ;;
2304                 arm11*)                                  subarch=armv6   ;;
2305                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2306                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2307             esac
2308         ;;
2309     esac
2310
2311 elif enabled alpha; then
2312
2313     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2314
2315 elif enabled bfin; then
2316
2317     cpuflags="-mcpu=$cpu"
2318
2319 elif enabled mips; then
2320
2321     cpuflags="-march=$cpu"
2322
2323 elif enabled avr32; then
2324
2325     case $cpu in
2326         ap7[02]0[0-2])
2327             subarch="avr32_ap"
2328             cpuflags="-mpart=$cpu"
2329         ;;
2330         ap)
2331             subarch="avr32_ap"
2332             cpuflags="-march=$cpu"
2333         ;;
2334         uc3[ab]*)
2335             subarch="avr32_uc"
2336             cpuflags="-mcpu=$cpu"
2337         ;;
2338         uc)
2339             subarch="avr32_uc"
2340             cpuflags="-march=$cpu"
2341         ;;
2342     esac
2343
2344 fi
2345
2346 add_cflags $cpuflags
2347 add_asflags $cpuflags
2348
2349 # compiler sanity check
2350 check_exec <<EOF
2351 int main(void){ return 0; }
2352 EOF
2353 if test "$?" != 0; then
2354     echo "$cc is unable to create an executable file."
2355     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2356         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2357         echo "Only do this if you know what cross compiling means."
2358     fi
2359     die "C compiler test failed."
2360 fi
2361
2362 add_cppflags -D_ISOC99_SOURCE
2363 check_cflags -std=c99
2364 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2365 #include <stdlib.h>
2366 EOF
2367 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2368 #include <stdlib.h>
2369 EOF
2370
2371 check_host_cflags -std=c99
2372 check_host_cflags -Wall
2373
2374 case "$arch" in
2375     alpha|ia64|mips|parisc|sparc)
2376         spic=$shared
2377     ;;
2378     x86)
2379         subarch="x86_32"
2380         check_cc <<EOF && subarch="x86_64"
2381         int test[(int)sizeof(char*) - 7];
2382 EOF
2383         if test "$subarch" = "x86_64"; then
2384             spic=$shared
2385         fi
2386     ;;
2387 esac
2388
2389 enable $subarch
2390 enabled spic && enable pic
2391
2392 # OS specific
2393 case $target_os in
2394     haiku)
2395         prefix_default="/boot/common"
2396         network_extralibs="-lnetwork"
2397         host_libs=
2398         ;;
2399     sunos)
2400         FFSERVERLDFLAGS=""
2401         SHFLAGS='-shared -Wl,-h,$$(@F)'
2402         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2403         network_extralibs="-lsocket -lnsl"
2404         add_cppflags -D__EXTENSIONS__
2405         nm_opts='-P -g'
2406         ;;
2407     netbsd)
2408         disable symver
2409         oss_indev_extralibs="-lossaudio"
2410         oss_outdev_extralibs="-lossaudio"
2411         ;;
2412     openbsd)
2413         enable malloc_aligned
2414         # On OpenBSD 4.5. the compiler does not use PIC unless
2415         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2416         # however the generated executable will not do anything
2417         # (simply quits with exit-code 1, no crash, no output).
2418         # Thus explicitly enable PIC here.
2419         enable pic
2420         disable symver
2421         SHFLAGS='-shared'
2422         oss_indev_extralibs="-lossaudio"
2423         oss_outdev_extralibs="-lossaudio"
2424         ;;
2425     dragonfly)
2426         enable malloc_aligned
2427         disable symver
2428         ;;
2429     freebsd)
2430         enable malloc_aligned
2431         ;;
2432     bsd/os)
2433         add_extralibs -lpoll -lgnugetopt
2434         strip="strip -d"
2435         ;;
2436     darwin)
2437         enable malloc_aligned
2438         gas="gas-preprocessor.pl $cc"
2439         enabled ppc && add_asflags -force_cpusubtype_ALL
2440         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2441         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2442         strip="${strip} -x"
2443         add_ldflags -Wl,-dynamic,-search_paths_first
2444         SLIBSUF=".dylib"
2445         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2446         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2447         FFSERVERLDFLAGS=-Wl,-bind_at_load
2448         objformat="macho"
2449         enabled x86_64 && objformat="macho64"
2450         enabled_any pic shared ||
2451             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2452         ;;
2453     mingw32*)
2454         if test $target_os = "mingw32ce"; then
2455             disable network
2456         else
2457             target_os=mingw32
2458         fi
2459         LIBTARGET=i386
2460         if enabled x86_64; then
2461             enable malloc_aligned
2462             LIBTARGET=x64
2463         elif enabled arm; then
2464             LIBTARGET=arm-wince
2465         fi
2466         shlibdir_default="$bindir_default"
2467         SLIBPREF=""
2468         SLIBSUF=".dll"
2469         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2470         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2471         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2472         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2473             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2474             install -d "$(LIBDIR)"; \
2475             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2476         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2477         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'
2478         objformat="win32"
2479         enable dos_paths
2480         check_cflags -fno-common
2481         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2482                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2483                 die "ERROR: MinGW runtime version must be >= 3.15."
2484         add_cppflags -U__STRICT_ANSI__
2485         ;;
2486     cygwin*)
2487         target_os=cygwin
2488         shlibdir_default="$bindir_default"
2489         SLIBPREF="cyg"
2490         SLIBSUF=".dll"
2491         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2492         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2493         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2494         objformat="win32"
2495         enable dos_paths
2496         check_cflags -fno-common
2497         add_cppflags -U__STRICT_ANSI__
2498         ;;
2499     *-dos|freedos|opendos)
2500         network_extralibs="-lsocket"
2501         objformat="coff"
2502         enable dos_paths
2503         add_cppflags -U__STRICT_ANSI__
2504         ;;
2505     linux)
2506         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2507         enable dv1394
2508         ;;
2509     irix*)
2510         target_os=irix
2511         ranlib="echo ignoring ranlib"
2512         ;;
2513     os/2*)
2514         strip="lxlite -CS"
2515         ln_s="cp -f"
2516         objformat="aout"
2517         add_cppflags -D_GNU_SOURCE
2518         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2519         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2520         FFSERVERLDFLAGS=""
2521         LIBSUF="_s.a"
2522         SLIBPREF=""
2523         SLIBSUF=".dll"
2524         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2525         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2526         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2527           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2528           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2529           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2530           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2531           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2532         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2533           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2534         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2535         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2536         enable dos_paths
2537         ;;
2538     gnu/kfreebsd)
2539         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2540         ;;
2541     gnu)
2542         ;;
2543     qnx)
2544         add_cppflags -D_QNX_SOURCE
2545         network_extralibs="-lsocket"
2546         ;;
2547     symbian)
2548         SLIBSUF=".dll"
2549         enable dos_paths
2550         add_cflags --include=$sysinclude/gcce/gcce.h
2551         ;;
2552     none)
2553         ;;
2554     *)
2555         die "Unknown OS '$target_os'."
2556         ;;
2557 esac
2558
2559 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2560
2561 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2562
2563 set_default $PATHS_LIST
2564
2565 # we need to build at least one lib type
2566 if ! enabled_any static shared; then
2567     cat <<EOF
2568 At least one library type must be built.
2569 Specify --enable-static to build the static libraries or --enable-shared to
2570 build the shared libraries as well. To only build the shared libraries specify
2571 --disable-static in addition to --enable-shared.
2572 EOF
2573     exit 1;
2574 fi
2575
2576 disabled static && LIBNAME=""
2577
2578 die_license_disabled() {
2579     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2580 }
2581
2582 die_license_disabled gpl libx264
2583 die_license_disabled gpl libxavs
2584 die_license_disabled gpl libxvid
2585 die_license_disabled gpl x11grab
2586
2587 die_license_disabled nonfree libfaac
2588
2589 die_license_disabled version3 libopencore_amrnb
2590 die_license_disabled version3 libopencore_amrwb
2591 die_license_disabled version3 libvo_aacenc
2592 die_license_disabled version3 libvo_amrwbenc
2593
2594 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2595
2596 disabled optimizations || check_cflags -fomit-frame-pointer
2597
2598 enable_pic() {
2599     enable pic
2600     add_cppflags -DPIC
2601     add_cflags   -fPIC
2602     add_asflags  -fPIC
2603 }
2604
2605 enabled pic && enable_pic
2606
2607 check_cc <<EOF || die "Symbol mangling check failed."
2608 int ff_extern;
2609 EOF
2610 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2611 extern_prefix=${sym%%ff_extern*}
2612
2613 check_cc <<EOF && enable inline_asm
2614 void foo(void) { __asm__ volatile ("" ::); }
2615 EOF
2616
2617 _restrict=
2618 for restrict_keyword in restrict __restrict__ __restrict; do
2619     check_cc <<EOF && _restrict=$restrict_keyword && break
2620 void foo(char * $restrict_keyword p);
2621 EOF
2622 done
2623
2624 check_cc <<EOF && enable attribute_packed
2625 struct { int x; } __attribute__((packed)) x;
2626 EOF
2627
2628 check_cc <<EOF && enable attribute_may_alias
2629 union { int x; } __attribute__((may_alias)) x;
2630 EOF
2631
2632 check_cc <<EOF || die "endian test failed"
2633 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2634 EOF
2635 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2636
2637 if enabled alpha; then
2638
2639     check_cflags -mieee
2640
2641 elif enabled arm; then
2642
2643     check_cflags -marm
2644     nogas=die
2645
2646     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2647         enable vfp_args
2648     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2649         case "${cross_prefix:-$cc}" in
2650             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2651             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2652 __asm__ (".eabi_attribute 28, 1");
2653 int main(void) { return 0; }
2654 EOF
2655         esac
2656         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2657     fi
2658
2659     # We have to check if pld is a nop and disable it.
2660     check_asm pld '"pld [r0]"'
2661
2662     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2663     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2664     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2665     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2666     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2667     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2668     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2669
2670     enabled_all armv6t2 shared !pic && enable_pic
2671
2672 elif enabled mips; then
2673
2674     check_asm loongson '"dmult.g $1, $2, $3"'
2675     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2676
2677 elif enabled ppc; then
2678
2679     enable local_aligned_8 local_aligned_16
2680
2681     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2682     check_asm ibm_asm   '"add 0, 0, 0"'
2683     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2684     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2685
2686     # AltiVec flags: The FSF version of GCC differs from the Apple version
2687     if enabled altivec; then
2688         nogas=warn
2689         check_cflags -maltivec -mabi=altivec &&
2690         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2691         check_cflags -faltivec
2692
2693         # check if our compiler supports Motorola AltiVec C API
2694         check_cc <<EOF || disable altivec
2695 $inc_altivec_h
2696 int main(void) {
2697     vector signed int v1, v2, v3;
2698     v1 = vec_add(v2,v3);
2699     return 0;
2700 }
2701 EOF
2702
2703         # check if our compiler supports braces for vector declarations
2704         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2705 $inc_altivec_h
2706 int main (void) { (vector int) {1}; return 0; }
2707 EOF
2708     fi
2709
2710 elif enabled sparc; then
2711
2712     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2713         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2714
2715 elif enabled x86; then
2716
2717     enable local_aligned_8 local_aligned_16
2718
2719     # check whether EBP is available on x86
2720     # As 'i' is stored on the stack, this program will crash
2721     # if the base pointer is used to access it because the
2722     # base pointer is cleared in the inline assembly code.
2723     check_exec_crash <<EOF && enable ebp_available
2724     volatile int i=0;
2725     __asm__ volatile (
2726         "xorl %%ebp, %%ebp"
2727     ::: "%ebp");
2728     return i;
2729 EOF
2730
2731     # check whether EBX is available on x86
2732     check_asm ebx_available '""::"b"(0)' &&
2733         check_asm ebx_available '"":::"%ebx"'
2734
2735     # check whether xmm clobbers are supported
2736     check_asm xmm_clobbers '"":::"%xmm0"'
2737
2738     # check whether more than 10 operands are supported
2739     check_cc <<EOF && enable ten_operands
2740 int main(void) {
2741     int x=0;
2742     __asm__ volatile(
2743         ""
2744         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2745     );
2746     return 0;
2747 }
2748 EOF
2749
2750     # check whether binutils is new enough to compile SSSE3/MMX2
2751     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2752     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2753
2754     check_asm bswap '"bswap %%eax" ::: "%eax"'
2755
2756     if ! disabled_any asm mmx yasm; then
2757         if check_cmd $yasmexe --version; then
2758             enabled x86_64 && yasm_extra="-m amd64"
2759             yasm_debug="-g dwarf2"
2760         elif check_cmd nasm -v; then
2761             yasmexe=nasm
2762             yasm_debug="-g -F dwarf"
2763             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2764         fi
2765
2766         YASMFLAGS="-f $objformat $yasm_extra"
2767         enabled pic               && append YASMFLAGS "-DPIC"
2768         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2769         case "$objformat" in
2770             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2771         esac
2772
2773         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2774             die "yasm not found, use --disable-yasm for a crippled build"
2775         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2776     fi
2777
2778     case "$cpu" in
2779         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2780             disable fast_clz
2781         ;;
2782     esac
2783
2784 fi
2785
2786 if enabled asm; then
2787     as=${gas:=$as}
2788     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2789         $nogas "GNU assembler not found, install gas-preprocessor"
2790 fi
2791
2792 check_ldflags -Wl,--as-needed
2793
2794 if check_func dlopen; then
2795     ldl=
2796 elif check_func dlopen -ldl; then
2797     ldl=-ldl
2798 fi
2799
2800 if enabled network; then
2801     check_type "sys/types.h sys/socket.h" socklen_t
2802     check_type netdb.h "struct addrinfo"
2803     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2804     check_type netinet/in.h "struct sockaddr_in6"
2805     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2806     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2807     # Prefer arpa/inet.h over winsock2
2808     if check_header arpa/inet.h ; then
2809         check_func closesocket
2810     elif check_header winsock2.h ; then
2811         check_func_headers winsock2.h closesocket -lws2 && \
2812             network_extralibs="-lws2" || \
2813         { check_func_headers winsock2.h closesocket -lws2_32 && \
2814             network_extralibs="-lws2_32"; }
2815         check_type ws2tcpip.h socklen_t
2816         check_type ws2tcpip.h "struct addrinfo"
2817         check_type ws2tcpip.h "struct ipv6_mreq"
2818         check_type ws2tcpip.h "struct sockaddr_in6"
2819         check_type ws2tcpip.h "struct sockaddr_storage"
2820         check_struct winsock2.h "struct sockaddr" sa_len
2821     else
2822         disable network
2823     fi
2824 fi
2825
2826 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2827 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2828
2829 check_func  fcntl
2830 check_func  fork
2831 check_func  getaddrinfo $network_extralibs
2832 check_func  gethrtime
2833 check_func  getrusage
2834 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2835 check_func  inet_aton $network_extralibs
2836 check_func  isatty
2837 check_func  localtime_r
2838 check_func  ${malloc_prefix}memalign            && enable memalign
2839 check_func  mkstemp
2840 check_func  mmap
2841 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2842 check_func  setrlimit
2843 check_func  strerror_r
2844 check_func  strtok_r
2845 check_func_headers conio.h kbhit
2846 check_func_headers io.h setmode
2847 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2848 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2849 check_func_headers windows.h GetProcessTimes
2850 check_func_headers windows.h MapViewOfFile
2851 check_func_headers windows.h VirtualAlloc
2852
2853 check_header dlfcn.h
2854 check_header dxva2api.h
2855 check_header libcrystalhd/libcrystalhd_if.h
2856 check_header malloc.h
2857 check_header poll.h
2858 check_header sys/mman.h
2859 check_header sys/resource.h
2860 check_header sys/select.h
2861 check_header termios.h
2862 check_header vdpau/vdpau.h
2863 check_header vdpau/vdpau_x11.h
2864 check_header X11/extensions/XvMClib.h
2865
2866 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2867
2868 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2869 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2870
2871 # check for some common methods of building with pthread support
2872 # do this before the optional library checks as some of them require pthreads
2873 if ! disabled pthreads && ! enabled w32threads; then
2874     enable pthreads
2875     if check_func pthread_create; then
2876         :
2877     elif check_func pthread_create -pthread; then
2878         add_cflags -pthread
2879         add_extralibs -pthread
2880     elif check_func pthread_create -pthreads; then
2881         add_cflags -pthreads
2882         add_extralibs -pthreads
2883     elif check_func pthread_create -lpthreadGC2; then
2884         add_extralibs -lpthreadGC2
2885     elif ! check_lib pthread.h pthread_create -lpthread; then
2886         disable pthreads
2887     fi
2888 fi
2889
2890 for thread in $THREADS_LIST; do
2891     if enabled $thread; then
2892         test -n "$thread_type" &&
2893             die "ERROR: Only one thread type must be selected." ||
2894             thread_type="$thread"
2895     fi
2896 done
2897
2898 check_lib math.h sin -lm && LIBM="-lm"
2899 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2900 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2901
2902 check_mathfunc exp2
2903 check_mathfunc exp2f
2904 check_mathfunc llrint
2905 check_mathfunc llrintf
2906 check_mathfunc log2
2907 check_mathfunc log2f
2908 check_mathfunc lrint
2909 check_mathfunc lrintf
2910 check_mathfunc round
2911 check_mathfunc roundf
2912 check_mathfunc trunc
2913 check_mathfunc truncf
2914
2915 # these are off by default, so fail if requested and not available
2916 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2917 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2918 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2919 enabled libdirac   && require_pkg_config dirac                          \
2920     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2921     "dirac_decoder_init dirac_encoder_init"
2922 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2923 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2924 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2925 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2926 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2927 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2928 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2929 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2930 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2931 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2932 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2933 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2934 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2935 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2936 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2937 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2938 enabled libvpx     && {
2939     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2940                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2941     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2942                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2943 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2944                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2945                         die "ERROR: libx264 version must be >= 0.115."; }
2946 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2947 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2948 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2949
2950 # libdc1394 check
2951 if enabled libdc1394; then
2952     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2953         enable libdc1394_2; } ||
2954     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2955         enable libdc1394_1; } ||
2956     die "ERROR: No version of libdc1394 found "
2957 fi
2958
2959 SDL_CONFIG="${cross_prefix}sdl-config"
2960 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2961     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2962     enable sdl &&
2963     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2964 else
2965   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2966     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2967     sdl_libs=$("${SDL_CONFIG}" --libs)
2968     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2969     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2970     enable sdl &&
2971     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2972   fi
2973 fi
2974 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2975
2976 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2977
2978 check_header linux/fb.h
2979 check_header linux/videodev.h
2980 check_header linux/videodev2.h
2981 check_header sys/videoio.h
2982
2983 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2984 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2985 # w32api 3.12 had it defined wrong
2986 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2987
2988 check_type "dshow.h" IBaseFilter
2989
2990 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2991 { check_header dev/bktr/ioctl_meteor.h &&
2992   check_header dev/bktr/ioctl_bt848.h; } ||
2993 { check_header machine/ioctl_meteor.h &&
2994   check_header machine/ioctl_bt848.h; } ||
2995 { check_header dev/video/meteor/ioctl_meteor.h &&
2996   check_header dev/video/bktr/ioctl_bt848.h; } ||
2997 check_header dev/ic/bt8xx.h
2998
2999 check_header sndio.h
3000 if check_struct sys/soundcard.h audio_buf_info bytes; then
3001     enable_safe sys/soundcard.h
3002 else
3003     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3004     #include <sys/soundcard.h>
3005     audio_buf_info abc;
3006 EOF
3007 fi
3008 check_header soundcard.h
3009
3010 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3011
3012 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3013
3014 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3015
3016 enabled x11grab                         &&
3017 check_header X11/Xlib.h                 &&
3018 check_header X11/extensions/XShm.h      &&
3019 check_header X11/extensions/Xfixes.h    &&
3020 check_func XOpenDisplay -lX11           &&
3021 check_func XShmCreateImage -lX11 -lXext &&
3022 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3023
3024 if ! disabled vaapi; then
3025     check_lib va/va.h vaInitialize -lva && {
3026         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3027         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3028     } || disable vaapi
3029 fi
3030
3031 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3032 check_cpp_condition \
3033     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3034     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3035       disable vdpau; }
3036 fi
3037
3038 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3039
3040 # add some useful compiler flags if supported
3041 check_cflags -Wdeclaration-after-statement
3042 check_cflags -Wall
3043 check_cflags -Wno-parentheses
3044 check_cflags -Wno-switch
3045 check_cflags -Wdisabled-optimization
3046 check_cflags -Wpointer-arith
3047 check_cflags -Wredundant-decls
3048 check_cflags -Wno-pointer-sign
3049 check_cflags -Wcast-qual
3050 check_cflags -Wwrite-strings
3051 check_cflags -Wtype-limits
3052 check_cflags -Wundef
3053 check_cflags -Wmissing-prototypes
3054 check_cflags -Wno-pointer-to-int-cast
3055 enabled extra_warnings && check_cflags -Winline
3056
3057 # add some linker flags
3058 check_ldflags -Wl,--warn-common
3059 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
3060 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3061
3062 echo "X{};" > $TMPV
3063 if test_ldflags -Wl,--version-script,$TMPV; then
3064     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3065     check_cc <<EOF && enable symver_asm_label
3066 void ff_foo(void) __asm__ ("av_foo@VERSION");
3067 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3068 EOF
3069     check_cc <<EOF && enable symver_gnu_asm
3070 __asm__(".symver ff_foo,av_foo@VERSION");
3071 void ff_foo(void) {}
3072 EOF
3073 fi
3074
3075 if enabled small; then
3076     add_cflags $size_cflags
3077     optimizations="small"
3078 elif enabled optimizations; then
3079     add_cflags $speed_cflags
3080 else
3081     add_cflags $noopt_cflags
3082 fi
3083 check_cflags -fno-math-errno
3084 check_cflags -fno-signed-zeros
3085
3086 if enabled icc; then
3087     # Just warnings, no remarks
3088     check_cflags -w1
3089     # -wd: Disable following warnings
3090     # 144, 167, 556: -Wno-pointer-sign
3091     # 1292: attribute "foo" ignored
3092     # 10006: ignoring unknown option -fno-signed-zeros
3093     # 10148: ignoring unknown option -Wno-parentheses
3094     # 10156: ignoring option '-W'; no argument required
3095     check_cflags -wd144,167,556,1292,10006,10148,10156
3096     # 11030: Warning unknown option --as-needed
3097     # 10156: ignoring option '-export'; no argument required
3098     check_ldflags -wd10156,11030
3099     # Allow to compile with optimizations
3100     check_ldflags -march=$cpu
3101     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3102     enable ebp_available
3103     if enabled x86_32; then
3104         test ${icc_version%%.*} -ge 11 && \
3105             check_cflags -falign-stack=maintain-16-byte || \
3106             disable aligned_stack
3107     fi
3108 elif enabled ccc; then
3109     # disable some annoying warnings
3110     add_cflags -msg_disable cvtu32to64
3111     add_cflags -msg_disable embedcomment
3112     add_cflags -msg_disable needconstext
3113     add_cflags -msg_disable nomainieee
3114     add_cflags -msg_disable ptrmismatch1
3115     add_cflags -msg_disable unreachcode
3116 elif enabled gcc; then
3117     check_cflags -fno-tree-vectorize
3118     check_cflags -Werror=implicit-function-declaration
3119     check_cflags -Werror=missing-prototypes
3120 elif enabled llvm_gcc; then
3121     check_cflags -mllvm -stack-alignment=16
3122 elif enabled clang; then
3123     check_cflags -mllvm -stack-alignment=16
3124     check_cflags -Qunused-arguments
3125 elif enabled armcc; then
3126     # 2523: use of inline assembler is deprecated
3127     add_cflags -W${armcc_opt},--diag_suppress=2523
3128     add_cflags -W${armcc_opt},--diag_suppress=1207
3129     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3130     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3131 elif enabled tms470; then
3132     add_cflags -pds=824 -pds=837
3133 elif enabled pathscale; then
3134     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3135 fi
3136
3137 enabled_any $THREADS_LIST      && enable threads
3138
3139 check_deps $CONFIG_LIST       \
3140            $CONFIG_EXTRA      \
3141            $HAVE_LIST         \
3142            $DECODER_LIST      \
3143            $ENCODER_LIST      \
3144            $HWACCEL_LIST      \
3145            $PARSER_LIST       \
3146            $BSF_LIST          \
3147            $DEMUXER_LIST      \
3148            $MUXER_LIST        \
3149            $FILTER_LIST       \
3150            $INDEV_LIST        \
3151            $OUTDEV_LIST       \
3152            $PROTOCOL_LIST     \
3153            $ACODEC_TESTS      \
3154            $VCODEC_TESTS      \
3155            $LAVF_TESTS        \
3156            $LAVFI_TESTS       \
3157            $SEEK_TESTS        \
3158
3159 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3160
3161 ! enabled_any memalign posix_memalign malloc_aligned &&
3162     enabled_any $need_memalign && enable memalign_hack
3163
3164 echo "install prefix            $prefix"
3165 echo "source path               $source_path"
3166 echo "C compiler                $cc"
3167 echo "ARCH                      $arch ($cpu)"
3168 if test "$build_suffix" != ""; then
3169     echo "build suffix              $build_suffix"
3170 fi
3171 if test "$extra_version" != ""; then
3172     echo "version string suffix     $extra_version"
3173 fi
3174 echo "big-endian                ${bigendian-no}"
3175 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3176 if enabled x86; then
3177     echo "${yasmexe}                      ${yasm-no}"
3178     echo "MMX enabled               ${mmx-no}"
3179     echo "MMX2 enabled              ${mmx2-no}"
3180     echo "3DNow! enabled            ${amd3dnow-no}"
3181     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3182     echo "SSE enabled               ${sse-no}"
3183     echo "SSSE3 enabled             ${ssse3-no}"
3184     echo "AVX enabled               ${avx-no}"
3185     echo "CMOV enabled              ${cmov-no}"
3186     echo "CMOV is fast              ${fast_cmov-no}"
3187     echo "EBX available             ${ebx_available-no}"
3188     echo "EBP available             ${ebp_available-no}"
3189     echo "10 operands supported     ${ten_operands-no}"
3190 fi
3191 if enabled arm; then
3192     echo "ARMv5TE enabled           ${armv5te-no}"
3193     echo "ARMv6 enabled             ${armv6-no}"
3194     echo "ARMv6T2 enabled           ${armv6t2-no}"
3195     echo "ARM VFP enabled           ${armvfp-no}"
3196     echo "IWMMXT enabled            ${iwmmxt-no}"
3197     echo "NEON enabled              ${neon-no}"
3198 fi
3199 if enabled mips; then
3200     echo "MMI enabled               ${mmi-no}"
3201 fi
3202 if enabled ppc; then
3203     echo "AltiVec enabled           ${altivec-no}"
3204     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3205     echo "dcbzl available           ${dcbzl-no}"
3206 fi
3207 if enabled sparc; then
3208     echo "VIS enabled               ${vis-no}"
3209 fi
3210 echo "debug symbols             ${debug-no}"
3211 echo "strip symbols             ${stripping-no}"
3212 echo "optimizations             ${optimizations-no}"
3213 echo "static                    ${static-no}"
3214 echo "shared                    ${shared-no}"
3215 echo "postprocessing support    ${postproc-no}"
3216 echo "new filter support        ${avfilter-no}"
3217 echo "network support           ${network-no}"
3218 echo "threading support         ${thread_type-no}"
3219 echo "SDL support               ${sdl-no}"
3220 echo "Sun medialib support      ${mlib-no}"
3221 echo "AVISynth enabled          ${avisynth-no}"
3222 echo "libcelt enabled           ${libcelt-no}"
3223 echo "frei0r enabled            ${frei0r-no}"
3224 echo "libdc1394 support         ${libdc1394-no}"
3225 echo "libdirac enabled          ${libdirac-no}"
3226 echo "libfaac enabled           ${libfaac-no}"
3227 echo "libgsm enabled            ${libgsm-no}"
3228 echo "libmp3lame enabled        ${libmp3lame-no}"
3229 echo "libnut enabled            ${libnut-no}"
3230 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3231 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3232 echo "libopencv support         ${libopencv-no}"
3233 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3234 echo "librtmp enabled           ${librtmp-no}"
3235 echo "libschroedinger enabled   ${libschroedinger-no}"
3236 echo "libspeex enabled          ${libspeex-no}"
3237 echo "libtheora enabled         ${libtheora-no}"
3238 echo "libva enabled             ${vaapi-no}"
3239 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3240 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3241 echo "libvorbis enabled         ${libvorbis-no}"
3242 echo "libvpx enabled            ${libvpx-no}"
3243 echo "libx264 enabled           ${libx264-no}"
3244 echo "libxavs enabled           ${libxavs-no}"
3245 echo "libxvid enabled           ${libxvid-no}"
3246 echo "zlib enabled              ${zlib-no}"
3247 echo "bzlib enabled             ${bzlib-no}"
3248 echo
3249
3250 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3251     echo "Enabled ${type}s:"
3252     eval list=\$$(toupper $type)_LIST
3253     print_enabled '_*' $list | sort | pr -r -3 -t
3254     echo
3255 done
3256
3257 license="LGPL version 2.1 or later"
3258 if enabled nonfree; then
3259     license="nonfree and unredistributable"
3260 elif enabled gplv3; then
3261     license="GPL version 3 or later"
3262 elif enabled lgplv3; then
3263     license="LGPL version 3 or later"
3264 elif enabled gpl; then
3265     license="GPL version 2 or later"
3266 fi
3267
3268 echo "License: $license"
3269
3270 echo "Creating config.mak and config.h..."
3271
3272 # build tree in object directory if source path is different from current one
3273 if enabled source_path_used; then
3274     DIRS="
3275         doc
3276         libavcodec
3277         libavcodec/$arch
3278         libavdevice
3279         libavfilter
3280         libavfilter/$arch
3281         libavfilter/libmpcodecs
3282         libavfilter/libmpcodecs/libvo
3283         libavformat
3284         libavutil
3285         libavutil/$arch
3286         libpostproc
3287         libswscale
3288         libswscale/$arch
3289         tests
3290         tools
3291     "
3292     FILES="
3293         Makefile
3294         common.mak
3295         subdir.mak
3296         doc/texi2pod.pl
3297         libavcodec/Makefile
3298         libavcodec/${arch}/Makefile
3299         libavdevice/Makefile
3300         libavfilter/Makefile
3301         libavfilter/${arch}/Makefile
3302         libavformat/Makefile
3303         libavutil/Makefile
3304         libpostproc/Makefile
3305         libswscale/Makefile
3306     "
3307     map 'mkdir -p $v' $DIRS;
3308     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3309 fi
3310
3311 enabled stripping || strip="echo skipping strip"
3312
3313 config_files="$TMPH config.mak"
3314
3315 cat > config.mak <<EOF
3316 # Automatically generated by configure - do not modify!
3317 ifndef FFMPEG_CONFIG_MAK
3318 FFMPEG_CONFIG_MAK=1
3319 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3320 prefix=$prefix
3321 LIBDIR=\$(DESTDIR)$libdir
3322 SHLIBDIR=\$(DESTDIR)$shlibdir
3323 INCDIR=\$(DESTDIR)$incdir
3324 BINDIR=\$(DESTDIR)$bindir
3325 DATADIR=\$(DESTDIR)$datadir
3326 MANDIR=\$(DESTDIR)$mandir
3327 SRC_PATH="$source_path"
3328 SRC_PATH_BARE=$source_path
3329 CC_IDENT=$cc_ident
3330 ARCH=$arch
3331 CC=$cc
3332 AS=$as
3333 LD=$ld
3334 DEPCC=$dep_cc
3335 YASM=$yasmexe
3336 YASMDEP=$yasmexe
3337 AR=$ar
3338 RANLIB=$ranlib
3339 CP=cp -p
3340 LN_S=$ln_s
3341 STRIP=$strip
3342 CPPFLAGS=$CPPFLAGS
3343 CFLAGS=$CFLAGS
3344 ASFLAGS=$ASFLAGS
3345 CC_O=$CC_O
3346 LDFLAGS=$LDFLAGS
3347 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3348 SHFLAGS=$SHFLAGS
3349 YASMFLAGS=$YASMFLAGS
3350 BUILDSUF=$build_suffix
3351 FULLNAME=$FULLNAME
3352 LIBPREF=$LIBPREF
3353 LIBSUF=$LIBSUF
3354 LIBNAME=$LIBNAME
3355 SLIBPREF=$SLIBPREF
3356 SLIBSUF=$SLIBSUF
3357 EXESUF=$EXESUF
3358 EXTRA_VERSION=$extra_version
3359 DEPFLAGS=$DEPFLAGS
3360 CCDEP=$CCDEP
3361 ASDEP=$ASDEP
3362 CC_DEPFLAGS=$CC_DEPFLAGS
3363 AS_DEPFLAGS=$AS_DEPFLAGS
3364 HOSTCC=$host_cc
3365 HOSTCFLAGS=$host_cflags
3366 HOSTEXESUF=$HOSTEXESUF
3367 HOSTLDFLAGS=$host_ldflags
3368 HOSTLIBS=$host_libs
3369 TARGET_EXEC=$target_exec
3370 TARGET_PATH=$target_path
3371 SDL_LIBS=$sdl_libs
3372 SDL_CFLAGS=$sdl_cflags
3373 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3374 EXTRALIBS=$extralibs
3375 INSTALL=$install
3376 LIBTARGET=${LIBTARGET}
3377 SLIBNAME=${SLIBNAME}
3378 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3379 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3380 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3381 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3382 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3383 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3384 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3385 EOF
3386
3387 get_version(){
3388     name=$1
3389     file=$source_path/$2
3390     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3391     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3392     lcname=$(tolower $name)
3393     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3394     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3395 }
3396
3397 get_version LIBSWSCALE  libswscale/swscale.h
3398 get_version LIBPOSTPROC libpostproc/postprocess.h
3399 get_version LIBAVCODEC  libavcodec/version.h
3400 get_version LIBAVDEVICE libavdevice/avdevice.h
3401 get_version LIBAVFORMAT libavformat/version.h
3402 get_version LIBAVUTIL   libavutil/avutil.h
3403 get_version LIBAVFILTER libavfilter/avfilter.h
3404
3405 cat > $TMPH <<EOF
3406 /* Automatically generated by configure - do not modify! */
3407 #ifndef FFMPEG_CONFIG_H
3408 #define FFMPEG_CONFIG_H
3409 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3410 #define FFMPEG_LICENSE "$(c_escape $license)"
3411 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3412 #define CC_TYPE "$cc_type"
3413 #define CC_VERSION $cc_version
3414 #define restrict $_restrict
3415 #define EXTERN_PREFIX "${extern_prefix}"
3416 #define EXTERN_ASM ${extern_prefix}
3417 #define SLIBSUF "$SLIBSUF"
3418 EOF
3419
3420 test -n "$malloc_prefix" &&
3421     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3422
3423 if enabled small || disabled optimizations; then
3424     echo "#undef  av_always_inline"  >> $TMPH
3425     if enabled small; then
3426         echo "#define av_always_inline inline"  >> $TMPH
3427     else
3428         echo "#define av_always_inline av_unused"  >> $TMPH
3429     fi
3430 fi
3431
3432 if enabled yasm; then
3433     append config_files $TMPASM
3434     printf '' >$TMPASM
3435 fi
3436
3437 print_config ARCH_   "$config_files" $ARCH_LIST
3438 print_config HAVE_   "$config_files" $HAVE_LIST
3439 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3440                                      $CONFIG_EXTRA      \
3441                                      $DECODER_LIST      \
3442                                      $ENCODER_LIST      \
3443                                      $HWACCEL_LIST      \
3444                                      $PARSER_LIST       \
3445                                      $BSF_LIST          \
3446                                      $DEMUXER_LIST      \
3447                                      $MUXER_LIST        \
3448                                      $FILTER_LIST       \
3449                                      $PROTOCOL_LIST     \
3450                                      $INDEV_LIST        \
3451                                      $OUTDEV_LIST       \
3452
3453 cat >>config.mak <<EOF
3454 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3455 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3456 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3457 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3458 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3459 EOF
3460
3461 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3462 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3463
3464 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3465 cp_if_changed $TMPH config.h
3466 touch .config
3467
3468 enabled yasm && cp_if_changed $TMPASM config.asm
3469
3470 cat > $TMPH <<EOF
3471 /* Generated by ffconf */
3472 #ifndef AVUTIL_AVCONFIG_H
3473 #define AVUTIL_AVCONFIG_H
3474 EOF
3475
3476 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3477
3478 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3479
3480 cp_if_changed $TMPH libavutil/avconfig.h
3481
3482 test -n "$WARNINGS" && printf "\n$WARNINGS"
3483
3484 # build pkg-config files
3485
3486 pkgconfig_generate(){
3487 name=$1
3488 shortname=${name#lib}${build_suffix}
3489 comment=$2
3490 version=$3
3491 libs=$4
3492 requires=$5
3493 enabled ${name#lib} || return 0
3494 cat <<EOF > $name/$name.pc
3495 prefix=$prefix
3496 exec_prefix=\${prefix}
3497 libdir=$libdir
3498 includedir=$incdir
3499
3500 Name: $name
3501 Description: $comment
3502 Version: $version
3503 Requires: $(enabled shared || echo $requires)
3504 Requires.private: $(enabled shared && echo $requires)
3505 Conflicts:
3506 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3507 Libs.private: $(enabled shared && echo $libs)
3508 Cflags: -I\${includedir}
3509 EOF
3510 cat <<EOF > $name/$name-uninstalled.pc
3511 prefix=
3512 exec_prefix=
3513 libdir=\${pcfiledir}
3514 includedir=${source_path}
3515
3516 Name: $name
3517 Description: $comment
3518 Version: $version
3519 Requires: $requires
3520 Conflicts:
3521 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3522 Cflags: -I\${includedir}
3523 EOF
3524 }
3525
3526 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3527 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3528 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3529 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3530 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3531 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3532 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"