Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-postproc       disable libpostproc build
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code
110   --enable-vdpau           enable VDPAU code
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
115   --disable-everything     disable all components listed below
116   --disable-encoder=NAME   disable encoder NAME
117   --enable-encoder=NAME    enable encoder NAME
118   --disable-encoders       disable all encoders
119   --disable-decoder=NAME   disable decoder NAME
120   --enable-decoder=NAME    enable decoder NAME
121   --disable-decoders       disable all decoders
122   --disable-hwaccel=NAME   disable hwaccel NAME
123   --enable-hwaccel=NAME    enable hwaccel NAME
124   --disable-hwaccels       disable all hwaccels
125   --disable-muxer=NAME     disable muxer NAME
126   --enable-muxer=NAME      enable muxer NAME
127   --disable-muxers         disable all muxers
128   --disable-demuxer=NAME   disable demuxer NAME
129   --enable-demuxer=NAME    enable demuxer NAME
130   --disable-demuxers       disable all demuxers
131   --enable-parser=NAME     enable parser NAME
132   --disable-parser=NAME    disable parser NAME
133   --disable-parsers        disable all parsers
134   --enable-bsf=NAME        enable bitstream filter NAME
135   --disable-bsf=NAME       disable bitstream filter NAME
136   --disable-bsfs           disable all bitstream filters
137   --enable-protocol=NAME   enable protocol NAME
138   --disable-protocol=NAME  disable protocol NAME
139   --disable-protocols      disable all protocols
140   --disable-indev=NAME     disable input device NAME
141   --disable-outdev=NAME    disable output device NAME
142   --disable-indevs         disable input devices
143   --disable-outdevs        disable output devices
144   --disable-devices        disable all devices
145   --enable-filter=NAME     enable filter NAME
146   --disable-filter=NAME    disable filter NAME
147   --disable-filters        disable all filters
148   --list-decoders          show all available decoders
149   --list-encoders          show all available encoders
150   --list-hwaccels          show all available hardware accelerators
151   --list-muxers            show all available muxers
152   --list-demuxers          show all available demuxers
153   --list-parsers           show all available parsers
154   --list-protocols         show all available protocols
155   --list-bsfs              show all available bitstream filters
156   --list-indevs            show all available input devices
157   --list-outdevs           show all available output devices
158   --list-filters           show all available filters
159
160 External library support:
161   --enable-avisynth        enable reading of AVISynth script files [no]
162   --enable-bzlib           enable bzlib [autodetect]
163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
164   --enable-frei0r          enable frei0r video filtering
165   --enable-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-openal          enable OpenAL 1.1 capture support [no]
192   --enable-mlib            enable Sun medialib [no]
193   --enable-zlib            enable zlib [autodetect]
194
195 Advanced options (experts only):
196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
197   --enable-cross-compile   assume a cross-compiler is used
198   --sysroot=PATH           root of cross-build tree
199   --sysinclude=PATH        location of cross-build system headers
200   --target-os=OS           compiler targets OS [$target_os]
201   --target-exec=CMD        command to run executables on target
202   --target-path=DIR        path to view of build directory on target
203   --nm=NM                  use nm tool
204   --ar=AR                  use archive tool AR [$ar_default]
205   --as=AS                  use assembler AS [$as_default]
206   --cc=CC                  use C compiler CC [$cc_default]
207   --ld=LD                  use linker LD
208   --host-cc=HOSTCC         use host C compiler HOSTCC
209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
211   --host-libs=HLIBS        use libs HLIBS when linking for host
212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
215   --extra-version=STRING   version string suffix []
216   --build-suffix=SUFFIX    library name suffix []
217   --arch=ARCH              select architecture [$arch]
218   --cpu=CPU                select the minimum required CPU (affects
219                            instruction selection, may crash on older CPUs)
220   --disable-asm            disable all assembler optimizations
221   --disable-altivec        disable AltiVec optimizations
222   --disable-amd3dnow       disable 3DNow! optimizations
223   --disable-amd3dnowext    disable 3DNow! extended optimizations
224   --disable-mmx            disable MMX optimizations
225   --disable-mmx2           disable MMX2 optimizations
226   --disable-sse            disable SSE optimizations
227   --disable-ssse3          disable SSSE3 optimizations
228   --disable-avx            disable AVX optimizations
229   --disable-armv5te        disable armv5te optimizations
230   --disable-armv6          disable armv6 optimizations
231   --disable-armv6t2        disable armv6t2 optimizations
232   --disable-armvfp         disable ARM VFP optimizations
233   --disable-iwmmxt         disable iwmmxt optimizations
234   --disable-mmi            disable MMI optimizations
235   --disable-neon           disable neon optimizations
236   --disable-vis            disable VIS optimizations
237   --disable-yasm           disable use of yasm assembler
238   --enable-pic             build position-independent code
239   --malloc-prefix=PFX      prefix malloc and related names with PFX
240   --enable-sram            allow use of on-chip SRAM
241   --disable-symver         disable symbol versioning
242   --optflags               override optimization-related compiler flags
243
244 Developer options (useful when working on FFmpeg itself):
245   --disable-debug          disable debugging symbols
246   --enable-debug=LEVEL     set the debug level [$debuglevel]
247   --disable-optimizations  disable compiler optimizations
248   --enable-extra-warnings  enable more compiler warnings
249   --disable-stripping      disable stripping of executables and shared libraries
250   --samples=PATH           location of test samples for FATE, if not set use
251                            \$FATE_SAMPLES at make invocation time.
252
253 NOTE: Object files are built at the place where configure is launched.
254 EOF
255   exit 0
256 }
257
258 quotes='""'
259
260 log(){
261     echo "$@" >> $logfile
262 }
263
264 log_file(){
265     log BEGIN $1
266     pr -n -t $1 >> $logfile
267     log END $1
268 }
269
270 echolog(){
271     log "$@"
272     echo "$@"
273 }
274
275 warn(){
276     log "WARNING: $*"
277     WARNINGS="${WARNINGS}WARNING: $*\n"
278 }
279
280 die(){
281     echolog "$@"
282     cat <<EOF
283
284 If you think configure made a mistake, make sure you are using the latest
285 version from Git.  If the latest version fails, report the problem to the
286 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
287 EOF
288     if disabled logging; then
289         cat <<EOF
290 Rerun configure with logging enabled (do not use --disable-logging), and
291 include the log this produces with your report.
292 EOF
293     else
294 cat <<EOF
295 Include the log file "$logfile" produced by configure as this will help
296 solving the problem.
297 EOF
298     fi
299     exit 1
300 }
301
302 # Avoid locale weirdness, besides we really just want to translate ASCII.
303 toupper(){
304     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
305 }
306
307 tolower(){
308     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
309 }
310
311 c_escape(){
312     echo "$*" | sed 's/["\\]/\\\0/g'
313 }
314
315 sh_quote(){
316     v=$(echo "$1" | sed "s/'/'\\\\''/g")
317     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
318     echo "$v"
319 }
320
321 cleanws(){
322     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
323 }
324
325 filter(){
326     pat=$1
327     shift
328     for v; do
329         eval "case $v in $pat) echo $v ;; esac"
330     done
331 }
332
333 filter_out(){
334     pat=$1
335     shift
336     for v; do
337         eval "case $v in $pat) ;; *) echo $v ;; esac"
338     done
339 }
340
341 map(){
342     m=$1
343     shift
344     for v; do eval $m; done
345 }
346
347 set_all(){
348     value=$1
349     shift
350     for var in $*; do
351         eval $var=$value
352     done
353 }
354
355 set_weak(){
356     value=$1
357     shift
358     for var; do
359         eval : \${$var:=$value}
360     done
361 }
362
363 set_safe(){
364     var=$1
365     shift
366     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
367 }
368
369 get_safe(){
370     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
371 }
372
373 pushvar(){
374     for var in $*; do
375         eval level=\${${var}_level:=0}
376         eval ${var}_${level}="\$$var"
377         eval ${var}_level=$(($level+1))
378     done
379 }
380
381 popvar(){
382     for var in $*; do
383         eval level=\${${var}_level:-0}
384         test $level = 0 && continue
385         eval level=$(($level-1))
386         eval $var="\${${var}_${level}}"
387         eval ${var}_level=$level
388         eval unset ${var}_${level}
389     done
390 }
391
392 enable(){
393     set_all yes $*
394 }
395
396 disable(){
397     set_all no $*
398 }
399
400 enable_weak(){
401     set_weak yes $*
402 }
403
404 disable_weak(){
405     set_weak no $*
406 }
407
408 enable_safe(){
409     for var; do
410         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
411     done
412 }
413
414 disable_safe(){
415     for var; do
416         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
417     done
418 }
419
420 do_enable_deep(){
421     for var; do
422         enabled $var && continue
423         eval sel="\$${var}_select"
424         eval sgs="\$${var}_suggest"
425         pushvar var sgs
426         enable_deep $sel
427         popvar sgs
428         enable_deep_weak $sgs
429         popvar var
430     done
431 }
432
433 enable_deep(){
434     do_enable_deep $*
435     enable $*
436 }
437
438 enable_deep_weak(){
439     do_enable_deep $*
440     enable_weak $*
441 }
442
443 enabled(){
444     test "${1#!}" = "$1" && op== || op=!=
445     eval test "x\$${1#!}" $op "xyes"
446 }
447
448 disabled(){
449     test "${1#!}" = "$1" && op== || op=!=
450     eval test "x\$${1#!}" $op "xno"
451 }
452
453 enabled_all(){
454     for opt; do
455         enabled $opt || return 1
456     done
457 }
458
459 disabled_all(){
460     for opt; do
461         disabled $opt || return 1
462     done
463 }
464
465 enabled_any(){
466     for opt; do
467         enabled $opt && return 0
468     done
469 }
470
471 disabled_any(){
472     for opt; do
473         disabled $opt && return 0
474     done
475     return 1
476 }
477
478 set_default(){
479     for opt; do
480         eval : \${$opt:=\$${opt}_default}
481     done
482 }
483
484 is_in(){
485     value=$1
486     shift
487     for var in $*; do
488         [ $var = $value ] && return 0
489     done
490     return 1
491 }
492
493 check_deps(){
494     for cfg; do
495         cfg="${cfg#!}"
496         enabled ${cfg}_checking && die "Circular dependency for $cfg."
497         disabled ${cfg}_checking && continue
498         enable ${cfg}_checking
499
500         eval dep_all="\$${cfg}_deps"
501         eval dep_any="\$${cfg}_deps_any"
502         eval dep_sel="\$${cfg}_select"
503         eval dep_sgs="\$${cfg}_suggest"
504         eval dep_ifa="\$${cfg}_if"
505         eval dep_ifn="\$${cfg}_if_any"
506
507         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
508         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
509         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
510
511         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
512         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
513         enabled_all  $dep_all || disable $cfg
514         enabled_any  $dep_any || disable $cfg
515         disabled_any $dep_sel && disable $cfg
516
517         if enabled $cfg; then
518             eval dep_extralibs="\$${cfg}_extralibs"
519             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
520             enable_deep $dep_sel
521             enable_deep_weak $dep_sgs
522         fi
523
524         disable ${cfg}_checking
525     done
526 }
527
528 print_config_h(){
529     enabled $1 && v=1 || v=0
530     echo "#define $2 $v"
531 }
532
533 print_config_mak(){
534     enabled $1 && v= || v=!
535     echo "$v$2=yes"
536 }
537
538 print_config_asm(){
539     enabled $1 && echo "%define $2"
540 }
541
542 print_config(){
543     pfx=$1
544     files=$2
545     shift 2
546     for cfg; do
547         ucname="$(toupper $cfg)"
548         for f in $files; do
549             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
550         done
551     done
552 }
553
554 print_enabled(){
555     test "$1" = -n && end=" " && shift || end="\n"
556     suf=$1
557     shift
558     for v; do
559         enabled $v && printf "%s$end" ${v%$suf};
560     done
561 }
562
563 append(){
564     var=$1
565     shift
566     eval "$var=\"\$$var $*\""
567 }
568
569 prepend(){
570     var=$1
571     shift
572     eval "$var=\"$* \$$var\""
573 }
574
575 add_cppflags(){
576     append CPPFLAGS $($filter_cppflags "$@")
577 }
578
579 add_cflags(){
580     append CFLAGS $($filter_cflags "$@")
581 }
582
583 add_asflags(){
584     append ASFLAGS $($filter_asflags "$@")
585 }
586
587 add_ldflags(){
588     append LDFLAGS "$@"
589 }
590
591 add_extralibs(){
592     prepend extralibs "$@"
593 }
594
595 check_cmd(){
596     log "$@"
597     "$@" >> $logfile 2>&1
598 }
599
600 check_cc(){
601     log check_cc "$@"
602     cat > $TMPC
603     log_file $TMPC
604     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
605 }
606
607 check_cpp(){
608     log check_cpp "$@"
609     cat > $TMPC
610     log_file $TMPC
611     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
612 }
613
614 check_as(){
615     log check_as "$@"
616     cat > $TMPC
617     log_file $TMPC
618     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
619 }
620
621 check_asm(){
622     log check_asm "$@"
623     name="$1"
624     code="$2"
625     shift 2
626     disable $name
627     check_as "$@" <<EOF && enable $name
628 void foo(void){ __asm__ volatile($code); }
629 EOF
630 }
631
632 check_yasm(){
633     log check_yasm "$@"
634     echo "$1" > $TMPS
635     log_file $TMPS
636     shift 1
637     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
638 }
639
640 check_ld(){
641     log check_ld "$@"
642     flags=''
643     libs=''
644     for f; do
645         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
646     done
647     check_cc $($filter_cflags $flags) || return
648     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
649 }
650
651 check_cppflags(){
652     log check_cppflags "$@"
653     set -- $($filter_cppflags "$@")
654     check_cc "$@" <<EOF && append CPPFLAGS "$@"
655 int x;
656 EOF
657 }
658
659 check_cflags(){
660     log check_cflags "$@"
661     set -- $($filter_cflags "$@")
662     check_cc "$@" <<EOF && append CFLAGS "$@"
663 int x;
664 EOF
665 }
666
667 test_ldflags(){
668     log test_ldflags "$@"
669     check_ld "$@" <<EOF
670 int main(void){ return 0; }
671 EOF
672 }
673
674 check_ldflags(){
675     log check_ldflags "$@"
676     test_ldflags "$@" && add_ldflags "$@"
677 }
678
679 check_header(){
680     log check_header "$@"
681     header=$1
682     shift
683     disable_safe $header
684     check_cpp "$@" <<EOF && enable_safe $header
685 #include <$header>
686 int x;
687 EOF
688 }
689
690 check_func(){
691     log check_func "$@"
692     func=$1
693     shift
694     disable $func
695     check_ld "$@" <<EOF && enable $func
696 extern int $func();
697 int main(void){ $func(); }
698 EOF
699 }
700
701 check_mathfunc(){
702     log check_mathfunc "$@"
703     func=$1
704     shift
705     disable $func
706     check_ld "$@" <<EOF && enable $func
707 #include <math.h>
708 float foo(float f) { return $func(f); }
709 int main(void){ return 0; }
710 EOF
711 }
712
713 check_func_headers(){
714     log check_func_headers "$@"
715     headers=$1
716     funcs=$2
717     shift 2
718     {
719         for hdr in $headers; do
720             echo "#include <$hdr>"
721         done
722         for func in $funcs; do
723             echo "long check_$func(void) { return (long) $func; }"
724         done
725         echo "int main(void) { return 0; }"
726     } | check_ld "$@" && enable $funcs && enable_safe $headers
727 }
728
729 check_cpp_condition(){
730     log check_cpp_condition "$@"
731     header=$1
732     condition=$2
733     shift 2
734     check_cpp $($filter_cppflags "$@") <<EOF
735 #include <$header>
736 #if !($condition)
737 #error "unsatisfied condition: $condition"
738 #endif
739 EOF
740 }
741
742 check_lib(){
743     log check_lib "$@"
744     header="$1"
745     func="$2"
746     shift 2
747     check_header $header && check_func $func "$@" && add_extralibs "$@"
748 }
749
750 check_lib2(){
751     log check_lib2 "$@"
752     headers="$1"
753     funcs="$2"
754     shift 2
755     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
756 }
757
758 check_pkg_config(){
759     log check_pkg_config "$@"
760     pkg="$1"
761     headers="$2"
762     funcs="$3"
763     shift 3
764     $pkg_config --exists $pkg 2>/dev/null || return
765     pkg_cflags=$($pkg_config --cflags $pkg)
766     pkg_libs=$($pkg_config --libs $pkg)
767     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
768         set_safe ${pkg}_cflags $pkg_cflags   &&
769         set_safe ${pkg}_libs   $pkg_libs
770 }
771
772 check_exec(){
773     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
774 }
775
776 check_exec_crash(){
777     code=$(cat)
778
779     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
780     # are safe but may not be available everywhere.  Thus we use
781     # raise(SIGTERM) instead.  The check is run in a subshell so we
782     # can redirect the "Terminated" message from the shell.  SIGBUS
783     # is not defined by standard C so it is used conditionally.
784
785     (check_exec "$@") >> $logfile 2>&1 <<EOF
786 #include <signal.h>
787 static void sighandler(int sig){
788     raise(SIGTERM);
789 }
790 int main(void){
791     signal(SIGILL, sighandler);
792     signal(SIGFPE, sighandler);
793     signal(SIGSEGV, sighandler);
794 #ifdef SIGBUS
795     signal(SIGBUS, sighandler);
796 #endif
797     { $code }
798 }
799 EOF
800 }
801
802 check_type(){
803     log check_type "$@"
804     headers=$1
805     type=$2
806     shift 2
807     disable_safe "$type"
808     incs=""
809     for hdr in $headers; do
810         incs="$incs
811 #include <$hdr>"
812     done
813     check_cc "$@" <<EOF && enable_safe "$type"
814 $incs
815 $type v;
816 EOF
817 }
818
819 check_struct(){
820     log check_type "$@"
821     headers=$1
822     struct=$2
823     member=$3
824     shift 3
825     disable_safe "${struct}_${member}"
826     incs=""
827     for hdr in $headers; do
828         incs="$incs
829 #include <$hdr>"
830     done
831     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
832 $incs
833 const void *p = &(($struct *)0)->$member;
834 EOF
835 }
836
837 require(){
838     name="$1"
839     header="$2"
840     func="$3"
841     shift 3
842     check_lib $header $func "$@" || die "ERROR: $name not found"
843 }
844
845 require2(){
846     name="$1"
847     headers="$2"
848     func="$3"
849     shift 3
850     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
851 }
852
853 require_pkg_config(){
854     pkg="$1"
855     check_pkg_config "$@" || die "ERROR: $pkg not found"
856     add_cflags    $(get_safe ${pkg}_cflags)
857     add_extralibs $(get_safe ${pkg}_libs)
858 }
859
860 check_host_cc(){
861     log check_host_cc "$@"
862     cat > $TMPC
863     log_file $TMPC
864     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
865 }
866
867 check_host_cflags(){
868     log check_host_cflags "$@"
869     check_host_cc "$@" <<EOF && append host_cflags "$@"
870 int x;
871 EOF
872 }
873
874 apply(){
875     file=$1
876     shift
877     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
878 }
879
880 cp_if_changed(){
881     cmp -s "$1" "$2" &&
882         echo "$2 is unchanged" ||
883         cp -f "$1" "$2"
884 }
885
886 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
887 # system-dependent things.
888
889 COMPONENT_LIST="
890     bsfs
891     decoders
892     demuxers
893     encoders
894     filters
895     hwaccels
896     indevs
897     muxers
898     outdevs
899     parsers
900     protocols
901 "
902
903 CONFIG_LIST="
904     $COMPONENT_LIST
905     aandct
906     ac3dsp
907     avcodec
908     avdevice
909     avfilter
910     avformat
911     avisynth
912     bzlib
913     crystalhd
914     dct
915     doc
916     dwt
917     dxva2
918     fastdiv
919     ffmpeg
920     ffplay
921     ffprobe
922     ffserver
923     fft
924     frei0r
925     golomb
926     gpl
927     gray
928     h264dsp
929     h264pred
930     hardcoded_tables
931     huffman
932     libcelt
933     libdc1394
934     libdirac
935     libfaac
936     libfreetype
937     libgsm
938     libmp3lame
939     libnut
940     libopencore_amrnb
941     libopencore_amrwb
942     libopencv
943     libopenjpeg
944     librtmp
945     libschroedinger
946     libspeex
947     libtheora
948     libvo_aacenc
949     libvo_amrwbenc
950     libvorbis
951     libvpx
952     libx264
953     libxavs
954     libxvid
955     lpc
956     lsp
957     mdct
958     memalign_hack
959     mlib
960     mpegaudiodsp
961     network
962     nonfree
963     openal
964     pic
965     postproc
966     rdft
967     rtpdec
968     runtime_cpudetect
969     shared
970     sinewin
971     small
972     sram
973     static
974     swscale
975     swscale_alpha
976     thumb
977     vaapi
978     vdpau
979     version3
980     x11grab
981     zlib
982 "
983
984 THREADS_LIST='
985     pthreads
986     w32threads
987 '
988
989 ARCH_LIST='
990     alpha
991     arm
992     avr32
993     avr32_ap
994     avr32_uc
995     bfin
996     ia64
997     m68k
998     mips
999     mips64
1000     parisc
1001     ppc
1002     ppc64
1003     s390
1004     sh4
1005     sparc
1006     sparc64
1007     tomi
1008     x86
1009     x86_32
1010     x86_64
1011 '
1012
1013 ARCH_EXT_LIST='
1014     altivec
1015     amd3dnow
1016     amd3dnowext
1017     armv5te
1018     armv6
1019     armv6t2
1020     armvfp
1021     avx
1022     iwmmxt
1023     mmi
1024     mmx
1025     mmx2
1026     neon
1027     ppc4xx
1028     sse
1029     ssse3
1030     vfpv3
1031     vis
1032 '
1033
1034 HAVE_LIST_PUB='
1035     bigendian
1036     fast_unaligned
1037 '
1038
1039 HAVE_LIST="
1040     $ARCH_EXT_LIST
1041     $HAVE_LIST_PUB
1042     $THREADS_LIST
1043     aligned_stack
1044     alsa_asoundlib_h
1045     altivec_h
1046     arpa_inet_h
1047     attribute_may_alias
1048     attribute_packed
1049     bswap
1050     closesocket
1051     cmov
1052     dcbzl
1053     dev_bktr_ioctl_bt848_h
1054     dev_bktr_ioctl_meteor_h
1055     dev_ic_bt8xx_h
1056     dev_video_meteor_ioctl_meteor_h
1057     dev_video_bktr_ioctl_bt848_h
1058     dlfcn_h
1059     dlopen
1060     dos_paths
1061     ebp_available
1062     ebx_available
1063     exp2
1064     exp2f
1065     fast_64bit
1066     fast_clz
1067     fast_cmov
1068     fcntl
1069     fork
1070     getaddrinfo
1071     gethrtime
1072     GetProcessMemoryInfo
1073     GetProcessTimes
1074     getrusage
1075     gnu_as
1076     struct_rusage_ru_maxrss
1077     ibm_asm
1078     inet_aton
1079     inline_asm
1080     isatty
1081     kbhit
1082     ldbrx
1083     llrint
1084     llrintf
1085     local_aligned_16
1086     local_aligned_8
1087     localtime_r
1088     log2
1089     log2f
1090     loongson
1091     lrint
1092     lrintf
1093     lzo1x_999_compress
1094     machine_ioctl_bt848_h
1095     machine_ioctl_meteor_h
1096     malloc_h
1097     MapViewOfFile
1098     memalign
1099     mkstemp
1100     mmap
1101     pld
1102     posix_memalign
1103     round
1104     roundf
1105     sdl
1106     sdl_video_size
1107     setmode
1108     sndio_h
1109     socklen_t
1110     soundcard_h
1111     poll_h
1112     setrlimit
1113     strerror_r
1114     strtok_r
1115     struct_addrinfo
1116     struct_ipv6_mreq
1117     struct_sockaddr_in6
1118     struct_sockaddr_sa_len
1119     struct_sockaddr_storage
1120     symver
1121     symver_gnu_asm
1122     symver_asm_label
1123     sys_mman_h
1124     sys_resource_h
1125     sys_select_h
1126     sys_soundcard_h
1127     sys_videoio_h
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     optflags
1194     pkg_config
1195     samples
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 openal_indev_deps="openal"
1476 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1477 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1478 sdl_outdev_deps="sdl"
1479 sndio_indev_deps="sndio_h"
1480 sndio_outdev_deps="sndio_h"
1481 v4l_indev_deps="linux_videodev_h"
1482 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1483 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1484 vfwcap_indev_extralibs="-lavicap32"
1485 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1486 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1487
1488 # protocols
1489 gopher_protocol_deps="network"
1490 http_protocol_deps="network"
1491 http_protocol_select="tcp_protocol"
1492 mmsh_protocol_select="http_protocol"
1493 mmst_protocol_deps="network"
1494 rtmp_protocol_select="tcp_protocol"
1495 rtp_protocol_select="udp_protocol"
1496 tcp_protocol_deps="network"
1497 udp_protocol_deps="network"
1498
1499 # filters
1500 blackframe_filter_deps="gpl"
1501 cropdetect_filter_deps="gpl"
1502 drawtext_filter_deps="libfreetype"
1503 frei0r_filter_deps="frei0r dlopen strtok_r"
1504 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1505 hqdn3d_filter_deps="gpl"
1506 movie_filter_deps="avcodec avformat"
1507 mp_filter_deps="gpl avcodec"
1508 negate_filter_deps="lut_filter"
1509 ocv_filter_deps="libopencv"
1510 scale_filter_deps="swscale"
1511 yadif_filter_deps="gpl"
1512
1513 # libraries
1514 avdevice_deps="avcodec avformat"
1515 avformat_deps="avcodec"
1516 postproc_deps="gpl"
1517
1518 # programs
1519 ffmpeg_deps="avcodec avformat swscale"
1520 ffmpeg_select="buffer_filter buffersink_filter"
1521 ffplay_deps="avcodec avformat swscale sdl"
1522 ffplay_select="buffersink_filter rdft"
1523 ffprobe_deps="avcodec avformat"
1524 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1525 ffserver_extralibs='$ldl'
1526
1527 doc_deps="texi2html"
1528
1529 # tests
1530
1531 test_deps(){
1532     suf1=$1
1533     suf2=$2
1534     shift 2
1535     for v; do
1536         dep=${v%=*}
1537         tests=${v#*=}
1538         for name in ${tests}; do
1539             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1540         done
1541     done
1542 }
1543
1544 test_deps _encoder _decoder                                             \
1545     adpcm_g726=g726                                                     \
1546     adpcm_ima_qt                                                        \
1547     adpcm_ima_wav                                                       \
1548     adpcm_ms                                                            \
1549     adpcm_swf                                                           \
1550     adpcm_yamaha=adpcm_yam                                              \
1551     alac                                                                \
1552     asv1                                                                \
1553     asv2                                                                \
1554     bmp                                                                 \
1555     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1556     dvvideo="dv dv50"                                                   \
1557     ffv1                                                                \
1558     flac                                                                \
1559     flashsv                                                             \
1560     flv                                                                 \
1561     gif                                                                 \
1562     h261                                                                \
1563     h263="h263 h263p"                                                   \
1564     huffyuv                                                             \
1565     jpegls                                                              \
1566     mjpeg="jpg mjpeg ljpeg"                                             \
1567     mp2                                                                 \
1568     mpeg1video="mpeg mpeg1b"                                            \
1569     mpeg2video="mpeg2 mpeg2thread"                                      \
1570     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1571     msmpeg4v3=msmpeg4                                                   \
1572     msmpeg4v2                                                           \
1573     pbm=pbmpipe                                                         \
1574     pcx                                                                 \
1575     pgm="pgm pgmpipe"                                                   \
1576     png                                                                 \
1577     ppm="ppm ppmpipe"                                                   \
1578     rawvideo="rgb yuv"                                                  \
1579     roq                                                                 \
1580     rv10                                                                \
1581     rv20                                                                \
1582     sgi                                                                 \
1583     snow="snow snowll"                                                  \
1584     svq1                                                                \
1585     targa=tga                                                           \
1586     tiff                                                                \
1587     wmav1                                                               \
1588     wmav2                                                               \
1589     wmv1                                                                \
1590     wmv2                                                                \
1591
1592 test_deps _muxer _demuxer                                               \
1593     aiff                                                                \
1594     pcm_alaw=alaw                                                       \
1595     asf                                                                 \
1596     au                                                                  \
1597     avi                                                                 \
1598     dv=dv_fmt                                                           \
1599     ffm                                                                 \
1600     flv=flv_fmt                                                         \
1601     gxf                                                                 \
1602     matroska=mkv                                                        \
1603     mmf                                                                 \
1604     mov                                                                 \
1605     pcm_mulaw=mulaw                                                     \
1606     mxf                                                                 \
1607     nut                                                                 \
1608     ogg                                                                 \
1609     rawvideo=pixfmt                                                     \
1610     rm                                                                  \
1611     swf                                                                 \
1612     mpegts=ts                                                           \
1613     voc                                                                 \
1614     wav                                                                 \
1615     yuv4mpegpipe=yuv4mpeg                                               \
1616
1617 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1618 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1619
1620 # default parameters
1621
1622 logfile="config.log"
1623
1624 # installation paths
1625 prefix_default="/usr/local"
1626 bindir_default='${prefix}/bin'
1627 datadir_default='${prefix}/share/ffmpeg'
1628 incdir_default='${prefix}/include'
1629 libdir_default='${prefix}/lib'
1630 mandir_default='${prefix}/share/man'
1631 shlibdir_default="$libdir_default"
1632
1633 # toolchain
1634 ar_default="ar"
1635 cc_default="gcc"
1636 cc_version=\"unknown\"
1637 host_cc_default="gcc"
1638 install="install"
1639 ln_s="ln -sf"
1640 nm_default="nm"
1641 objformat="elf"
1642 pkg_config_default=pkg-config
1643 ranlib="ranlib"
1644 strip_default="strip"
1645 yasmexe="yasm"
1646 nogas=":"
1647
1648 nm_opts='-g'
1649
1650 # machine
1651 arch_default=$(uname -m)
1652 cpu="generic"
1653
1654 # OS
1655 target_os_default=$(tolower $(uname -s))
1656 host_os=$target_os_default
1657
1658 # configurable options
1659 enable avcodec
1660 enable avdevice
1661 enable avfilter
1662 enable avformat
1663 enable avutil
1664 enable asm
1665 enable debug
1666 enable doc
1667 enable fastdiv
1668 enable ffmpeg
1669 enable ffplay
1670 enable ffprobe
1671 enable ffserver
1672 enable network
1673 enable optimizations
1674 enable postproc
1675 enable protocols
1676 enable static
1677 enable stripping
1678 enable swscale
1679 enable swscale_alpha
1680
1681 # build settings
1682 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1683 FFSERVERLDFLAGS=-Wl,-E
1684 LIBPREF="lib"
1685 LIBSUF=".a"
1686 FULLNAME='$(NAME)$(BUILDSUF)'
1687 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1688 SLIBPREF="lib"
1689 SLIBSUF=".so"
1690 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1691 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1692 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1693 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1694
1695 AS_O='-o $@'
1696 CC_O='-o $@'
1697
1698 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1699 host_libs='-lm'
1700
1701 target_path='$(CURDIR)'
1702
1703 # since the object filename is not given with the -MM flag, the compiler
1704 # is only able to print the basename, and we must add the path ourselves
1705 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1706 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1707
1708 # find source path
1709 if test -f configure; then
1710     source_path=.
1711     disable source_path_used
1712 else
1713     source_path=$(cd $(dirname "$0"); pwd)
1714     enable source_path_used
1715     echo "$source_path" | grep -q '[[:blank:]]' &&
1716         die "Out of tree builds are impossible with whitespace in source path."
1717     test -e "$source_path/config.h" &&
1718         die "Out of tree builds are impossible with config.h in source dir."
1719 fi
1720
1721 for v in "$@"; do
1722     r=${v#*=}
1723     l=${v%"$r"}
1724     r=$(sh_quote "$r")
1725     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1726 done
1727
1728 find_things(){
1729     thing=$1
1730     pattern=$2
1731     file=$source_path/$3
1732     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1733 }
1734
1735 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1736 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1737 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1738 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1739 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1740 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1741 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1742 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1743 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1744 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1745 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1746
1747 find_tests(){
1748     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1749 }
1750
1751 ACODEC_TESTS=$(find_tests acodec)
1752 VCODEC_TESTS=$(find_tests vsynth1)
1753 LAVF_TESTS=$(find_tests lavf)
1754 LAVFI_TESTS=$(find_tests lavfi)
1755 SEEK_TESTS=$(find_tests seek seek_)
1756
1757 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1758
1759 for n in $COMPONENT_LIST; do
1760     v=$(toupper ${n%s})_LIST
1761     eval enable \$$v
1762     eval ${n}_if_any="\$$v"
1763 done
1764
1765 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1766
1767 die_unknown(){
1768     echo "Unknown option \"$1\"."
1769     echo "See $0 --help for available options."
1770     exit 1
1771 }
1772
1773 show_list() {
1774     suffix=_$1
1775     shift
1776     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1777     exit 0
1778 }
1779
1780 for opt do
1781     optval="${opt#*=}"
1782     case "$opt" in
1783     --extra-ldflags=*) add_ldflags $optval
1784     ;;
1785     --extra-libs=*) add_extralibs $optval
1786     ;;
1787     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1788     ;;
1789     --enable-debug=*) debuglevel="$optval"
1790     ;;
1791     --disable-everything)
1792     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1793     ;;
1794     --enable-*=*|--disable-*=*)
1795     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1796     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1797     eval list=\$$(toupper $thing)_LIST
1798     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1799     $action $(filter "$name" $list)
1800     ;;
1801     --enable-?*|--disable-?*)
1802     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1803     if is_in $option $COMPONENT_LIST; then
1804         test $action = disable && action=unset
1805         eval $action \$$(toupper ${option%s})_LIST
1806     elif is_in $option $CMDLINE_SELECT; then
1807         $action $option
1808     else
1809         die_unknown $opt
1810     fi
1811     ;;
1812     --list-*)
1813         NAME="${opt#--list-}"
1814         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1815         NAME=${NAME%s}
1816         eval show_list $NAME \$$(toupper $NAME)_LIST
1817     ;;
1818     --help|-h) show_help
1819     ;;
1820     *)
1821     optname="${opt%%=*}"
1822     optname="${optname#--}"
1823     optname=$(echo "$optname" | sed 's/-/_/g')
1824     if is_in $optname $CMDLINE_SET; then
1825         eval $optname='$optval'
1826     elif is_in $optname $CMDLINE_APPEND; then
1827         append $optname "$optval"
1828     else
1829          die_unknown $opt
1830     fi
1831     ;;
1832     esac
1833 done
1834
1835 disabled logging && logfile=/dev/null
1836
1837 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1838 set >> $logfile
1839
1840 test -n "$cross_prefix" && enable cross_compile
1841
1842 if enabled cross_compile; then
1843     test -n "$arch" && test -n "$target_os" ||
1844         die "Must specify target arch and OS when cross-compiling"
1845 fi
1846
1847 set_default arch target_os
1848
1849 ar_default="${cross_prefix}${ar_default}"
1850 cc_default="${cross_prefix}${cc_default}"
1851 nm_default="${cross_prefix}${nm_default}"
1852 pkg_config_default="${cross_prefix}${pkg_config_default}"
1853 ranlib="${cross_prefix}${ranlib}"
1854 strip_default="${cross_prefix}${strip_default}"
1855
1856 sysinclude_default="${sysroot}/usr/include"
1857
1858 set_default cc nm pkg_config strip sysinclude
1859 enabled cross_compile || host_cc_default=$cc
1860 set_default host_cc
1861
1862 if ! $pkg_config --version >/dev/null 2>&1; then
1863     warn "$pkg_config not found, library detection may fail."
1864     pkg_config=false
1865 fi
1866
1867 exesuf() {
1868     case $1 in
1869         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1870     esac
1871 }
1872
1873 EXESUF=$(exesuf $target_os)
1874 HOSTEXESUF=$(exesuf $host_os)
1875
1876 # set temporary file name
1877 : ${TMPDIR:=$TEMPDIR}
1878 : ${TMPDIR:=$TMP}
1879 : ${TMPDIR:=/tmp}
1880
1881 if ! check_cmd mktemp -u XXXXXX; then
1882     # simple replacement for missing mktemp
1883     # NOT SAFE FOR GENERAL USE
1884     mktemp(){
1885         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1886     }
1887 fi
1888
1889 tmpfile(){
1890     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1891         (set -C; exec > $tmp) 2>/dev/null ||
1892         die "Unable to create temporary file in $TMPDIR."
1893     append TMPFILES $tmp
1894     eval $1=$tmp
1895 }
1896
1897 trap 'rm -f -- $TMPFILES' EXIT
1898
1899 tmpfile TMPC  .c
1900 tmpfile TMPE  $EXESUF
1901 tmpfile TMPH  .h
1902 tmpfile TMPO  .o
1903 tmpfile TMPS  .S
1904 tmpfile TMPV  .ver
1905 tmpfile TMPSH .sh
1906 tmpfile TMPASM .asm
1907
1908 unset -f mktemp
1909
1910 chmod +x $TMPE
1911
1912 # make sure we can execute files in $TMPDIR
1913 cat > $TMPSH 2>> $logfile <<EOF
1914 #! /bin/sh
1915 EOF
1916 chmod +x $TMPSH >> $logfile 2>&1
1917 if ! $TMPSH >> $logfile 2>&1; then
1918     cat <<EOF
1919 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1920 variable to another directory and make sure that it is not mounted noexec.
1921 EOF
1922     die "Sanity test failed."
1923 fi
1924
1925 filter_cflags=echo
1926 filter_cppflags=echo
1927 filter_asflags=echo
1928
1929 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1930     cc_type=llvm_gcc
1931     cc_version=__VERSION__
1932     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1933     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1934     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1935     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1936     speed_cflags='-O3'
1937     size_cflags='-Os'
1938 elif $cc -v 2>&1 | grep -qi ^gcc; then
1939     cc_type=gcc
1940     cc_version=__VERSION__
1941     gcc_version=$($cc --version | head -n1)
1942     gcc_basever=$($cc -dumpversion)
1943     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1944     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1945     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1946     if ! $cc -dumpversion | grep -q '^2\.'; then
1947         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1948         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1949     fi
1950     speed_cflags='-O3'
1951     size_cflags='-Os'
1952 elif $cc --version 2>/dev/null | grep -q Intel; then
1953     cc_type=icc
1954     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1955     cc_ident=$($cc --version | head -n1)
1956     icc_version=$($cc -dumpversion)
1957     CC_DEPFLAGS='-MMD'
1958     AS_DEPFLAGS='-MMD'
1959     speed_cflags='-O3'
1960     size_cflags='-Os'
1961     noopt_cflags='-O1'
1962 elif $cc -v 2>&1 | grep -q xlc; then
1963     cc_type=xlc
1964     cc_version="AV_STRINGIFY(__IBMC__)"
1965     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1966     speed_cflags='-O5'
1967     size_cflags='-O5 -qcompact'
1968 elif $cc -V 2>/dev/null | grep -q Compaq; then
1969     cc_type=ccc
1970     cc_version="AV_STRINGIFY(__DECC_VER)"
1971     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1972     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1973     debuglevel=3
1974     add_ldflags -Wl,-z,now # calls to libots crash without this
1975     speed_cflags='-fast'
1976     size_cflags='-O1'
1977 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1978     test -d "$sysroot" || die "No valid sysroot specified."
1979     cc_type=armcc
1980     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1981     cc_ident=$($cc --vsn | head -n1)
1982     armcc_conf="$PWD/armcc.conf"
1983     $cc --arm_linux_configure                 \
1984         --arm_linux_config_file="$armcc_conf" \
1985         --configure_sysroot="$sysroot"        \
1986         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1987         die "Error creating armcc configuration file."
1988     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1989     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1990     as_default="${cross_prefix}gcc"
1991     CC_DEPFLAGS='-MMD'
1992     AS_DEPFLAGS='-MMD'
1993     speed_cflags='-O3'
1994     size_cflags='-Os'
1995     filter_asflags="filter_out -W${armcc_opt}*"
1996 elif $cc -version 2>/dev/null | grep -q TMS470; then
1997     cc_type=tms470
1998     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1999     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2000     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2001     CC_O='-fr=$(@D)'
2002     as_default="${cross_prefix}gcc"
2003     ld_default="${cross_prefix}gcc"
2004     TMPO=$(basename $TMPC .c).o
2005     append TMPFILES $TMPO
2006     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2007     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2008     AS_DEPFLAGS='-MMD'
2009     speed_cflags='-O3 -mf=5'
2010     size_cflags='-O3 -mf=2'
2011     filter_cflags=tms470_flags
2012     tms470_flags(){
2013         for flag; do
2014             case $flag in
2015                 -march=*|-mcpu=*)
2016                     case "${flag#*=}" in
2017                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2018                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2019                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2020                         armv6*|arm11*)          echo -mv=6   ;;
2021                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2022                                                 echo -mv=5e  ;;
2023                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2024                     esac
2025                     ;;
2026                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2027                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2028                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2029                 -msoft-float)   echo --float_support=vfplib       ;;
2030                 -O[0-3]|-mf=*)  echo $flag                        ;;
2031                 -g)             echo -g -mn                       ;;
2032                 -pds=*)         echo $flag                        ;;
2033             esac
2034         done
2035     }
2036 elif $cc -v 2>&1 | grep -q clang; then
2037     cc_type=clang
2038     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2039         cc_version=__clang_version__ || cc_version=__VERSION__
2040     cc_ident=$($cc --version | head -n1)
2041     CC_DEPFLAGS='-MMD'
2042     AS_DEPFLAGS='-MMD'
2043     speed_cflags='-O3'
2044     size_cflags='-Os'
2045 elif $cc -V 2>&1 | grep -q Sun; then
2046     cc_type=suncc
2047     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2048     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2049     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2050     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2051     speed_cflags='-O5'
2052     size_cflags='-O5 -xspace'
2053     filter_cflags=suncc_flags
2054     suncc_flags(){
2055         for flag; do
2056             case $flag in
2057                 -march=*|-mcpu=*)
2058                     case "${flag#*=}" in
2059                         native)                   echo -xtarget=native       ;;
2060                         v9|niagara)               echo -xarch=sparc          ;;
2061                         ultrasparc)               echo -xarch=sparcvis       ;;
2062                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2063                         i586|pentium)             echo -xchip=pentium        ;;
2064                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2065                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2066                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2067                         pentium4*)          echo -xtarget=pentium4           ;;
2068                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2069                         *-sse3)             echo -xarch=sse3                 ;;
2070                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2071                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2072                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2073                         k8|opteron|athlon64|athlon-fx)
2074                                                   echo -xarch=sse2a          ;;
2075                         athlon*)                  echo -xarch=pentium_proa   ;;
2076                     esac
2077                     ;;
2078                 -std=c99)             echo -xc99              ;;
2079                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2080                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2081                 -W*,*)                echo $flag              ;;
2082                 -f*-*|-W*)                                    ;;
2083                 *)                    echo $flag              ;;
2084             esac
2085         done
2086     }
2087 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2088     cc_type=pathscale
2089     cc_version=__PATHSCALE__
2090     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2091     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2092     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2093     speed_cflags='-O2'
2094     size_cflags='-Os'
2095     filter_cflags='filter_out -Wdisabled-optimization'
2096 elif $cc -v 2>&1 | grep -q Open64; then
2097     cc_type=open64
2098     cc_version=__OPEN64__
2099     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2100     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2101     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2102     speed_cflags='-O2'
2103     size_cflags='-Os'
2104     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2105 fi
2106
2107 test -n "$cc_type" && enable $cc_type ||
2108     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2109
2110 : ${as_default:=$cc}
2111 : ${dep_cc_default:=$cc}
2112 : ${ld_default:=$cc}
2113 set_default ar as dep_cc ld
2114
2115 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2116 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2117
2118 add_cflags $extra_cflags
2119 add_asflags $extra_cflags
2120
2121 if test -n "$sysroot"; then
2122     case "$cc_type" in
2123         gcc|llvm_gcc|clang)
2124             add_cppflags --sysroot="$sysroot"
2125             add_ldflags --sysroot="$sysroot"
2126         ;;
2127         tms470)
2128             add_cppflags -I"$sysinclude"
2129             add_ldflags  --sysroot="$sysroot"
2130         ;;
2131     esac
2132 fi
2133
2134 if test "$cpu" = host; then
2135     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2136
2137     case "$cc_type" in
2138         gcc|llvm_gcc)
2139             check_native(){
2140                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2141                 sed -n "/$1=/{
2142                             s/.*$1=\\([^ ]*\\).*/\\1/
2143                             p
2144                             q
2145                         }" $TMPE
2146             }
2147             cpu=$(check_native -march || check_native -mcpu)
2148         ;;
2149     esac
2150
2151     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2152 fi
2153
2154 # Deal with common $arch aliases
2155 case "$arch" in
2156     arm*)
2157         arch="arm"
2158     ;;
2159     mips|mipsel|IP*)
2160         arch="mips"
2161     ;;
2162     mips64*)
2163         arch="mips"
2164         subarch="mips64"
2165     ;;
2166     parisc|hppa)
2167         arch="parisc"
2168     ;;
2169     parisc64|hppa64)
2170         arch="parisc"
2171         subarch="parisc64"
2172     ;;
2173     "Power Macintosh"|ppc|powerpc)
2174         arch="ppc"
2175     ;;
2176     ppc64|powerpc64)
2177         arch="ppc"
2178         subarch="ppc64"
2179     ;;
2180     s390|s390x)
2181         arch="s390"
2182     ;;
2183     sh4|sh)
2184         arch="sh4"
2185     ;;
2186     sun4u|sparc64)
2187         arch="sparc"
2188         subarch="sparc64"
2189     ;;
2190     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2191         arch="x86"
2192     ;;
2193 esac
2194
2195 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2196 enable $arch
2197
2198 # Add processor-specific flags
2199 if test "$cpu" = generic; then
2200     : do nothing
2201 elif enabled ppc; then
2202
2203     case $(tolower $cpu) in
2204         601|ppc601|powerpc601)
2205             cpuflags="-mcpu=601"
2206             disable altivec
2207         ;;
2208         603*|ppc603*|powerpc603*)
2209             cpuflags="-mcpu=603"
2210             disable altivec
2211         ;;
2212         604*|ppc604*|powerpc604*)
2213             cpuflags="-mcpu=604"
2214             disable altivec
2215         ;;
2216         g3|75*|ppc75*|powerpc75*)
2217             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2218             disable altivec
2219         ;;
2220         g4|745*|ppc745*|powerpc745*)
2221             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2222         ;;
2223         74*|ppc74*|powerpc74*)
2224             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2225         ;;
2226         g5|970|ppc970|powerpc970|power4*)
2227             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2228         ;;
2229         cell)
2230             cpuflags="-mcpu=cell"
2231             enable ldbrx
2232         ;;
2233         e500v2)
2234             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2235             disable altivec
2236         ;;
2237         e500)
2238             cpuflags="-mcpu=8540 -mhard-float"
2239             disable altivec
2240         ;;
2241     esac
2242
2243 elif enabled x86; then
2244
2245     case $cpu in
2246         i[345]86|pentium)
2247             cpuflags="-march=$cpu"
2248             disable mmx
2249         ;;
2250         # targets that do NOT support conditional mov (cmov)
2251         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2252             cpuflags="-march=$cpu"
2253             disable cmov
2254         ;;
2255         # targets that do support conditional mov (cmov)
2256         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2257             cpuflags="-march=$cpu"
2258             enable cmov
2259             enable fast_cmov
2260         ;;
2261         # targets that do support conditional mov but on which it's slow
2262         pentium4|pentium4m|prescott|nocona)
2263             cpuflags="-march=$cpu"
2264             enable cmov
2265             disable fast_cmov
2266         ;;
2267     esac
2268
2269 elif enabled sparc; then
2270
2271     case $cpu in
2272         niagara)
2273             cpuflags="-mcpu=$cpu"
2274             disable vis
2275         ;;
2276         sparc64)
2277             cpuflags="-mcpu=v9"
2278         ;;
2279     esac
2280
2281 elif enabled arm; then
2282
2283     case $cpu in
2284         armv*)
2285             cpuflags="-march=$cpu"
2286             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2287         ;;
2288         *)
2289             cpuflags="-mcpu=$cpu"
2290             case $cpu in
2291                 cortex-a*)                               subarch=armv7a  ;;
2292                 cortex-r*)                               subarch=armv7r  ;;
2293                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2294                 arm11*)                                  subarch=armv6   ;;
2295                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2296                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2297             esac
2298         ;;
2299     esac
2300
2301 elif enabled alpha; then
2302
2303     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2304
2305 elif enabled bfin; then
2306
2307     cpuflags="-mcpu=$cpu"
2308
2309 elif enabled mips; then
2310
2311     cpuflags="-march=$cpu"
2312
2313 elif enabled avr32; then
2314
2315     case $cpu in
2316         ap7[02]0[0-2])
2317             subarch="avr32_ap"
2318             cpuflags="-mpart=$cpu"
2319         ;;
2320         ap)
2321             subarch="avr32_ap"
2322             cpuflags="-march=$cpu"
2323         ;;
2324         uc3[ab]*)
2325             subarch="avr32_uc"
2326             cpuflags="-mcpu=$cpu"
2327         ;;
2328         uc)
2329             subarch="avr32_uc"
2330             cpuflags="-march=$cpu"
2331         ;;
2332     esac
2333
2334 fi
2335
2336 add_cflags $cpuflags
2337 add_asflags $cpuflags
2338
2339 # compiler sanity check
2340 check_exec <<EOF
2341 int main(void){ return 0; }
2342 EOF
2343 if test "$?" != 0; then
2344     echo "$cc is unable to create an executable file."
2345     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2346         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2347         echo "Only do this if you know what cross compiling means."
2348     fi
2349     die "C compiler test failed."
2350 fi
2351
2352 add_cppflags -D_ISOC99_SOURCE
2353 check_cflags -std=c99
2354 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2355 #include <stdlib.h>
2356 EOF
2357 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2358 #include <stdlib.h>
2359 EOF
2360
2361 check_host_cflags -std=c99
2362 check_host_cflags -Wall
2363
2364 case "$arch" in
2365     alpha|ia64|mips|parisc|sparc)
2366         spic=$shared
2367     ;;
2368     x86)
2369         subarch="x86_32"
2370         check_cc <<EOF && subarch="x86_64"
2371         int test[(int)sizeof(char*) - 7];
2372 EOF
2373         if test "$subarch" = "x86_64"; then
2374             spic=$shared
2375         fi
2376     ;;
2377 esac
2378
2379 enable $subarch
2380 enabled spic && enable pic
2381
2382 # OS specific
2383 case $target_os in
2384     haiku)
2385         prefix_default="/boot/common"
2386         network_extralibs="-lnetwork"
2387         host_libs=
2388         ;;
2389     sunos)
2390         FFSERVERLDFLAGS=""
2391         SHFLAGS='-shared -Wl,-h,$$(@F)'
2392         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2393         network_extralibs="-lsocket -lnsl"
2394         add_cppflags -D__EXTENSIONS__
2395         nm_opts='-P -g'
2396         ;;
2397     netbsd)
2398         disable symver
2399         oss_indev_extralibs="-lossaudio"
2400         oss_outdev_extralibs="-lossaudio"
2401         ;;
2402     openbsd)
2403         enable malloc_aligned
2404         # On OpenBSD 4.5. the compiler does not use PIC unless
2405         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2406         # however the generated executable will not do anything
2407         # (simply quits with exit-code 1, no crash, no output).
2408         # Thus explicitly enable PIC here.
2409         enable pic
2410         disable symver
2411         SHFLAGS='-shared'
2412         oss_indev_extralibs="-lossaudio"
2413         oss_outdev_extralibs="-lossaudio"
2414         ;;
2415     dragonfly)
2416         enable malloc_aligned
2417         disable symver
2418         ;;
2419     freebsd)
2420         enable malloc_aligned
2421         ;;
2422     bsd/os)
2423         add_extralibs -lpoll -lgnugetopt
2424         strip="strip -d"
2425         ;;
2426     darwin)
2427         enable malloc_aligned
2428         gas="gas-preprocessor.pl $cc"
2429         enabled ppc && add_asflags -force_cpusubtype_ALL
2430         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2431         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2432         strip="${strip} -x"
2433         add_ldflags -Wl,-dynamic,-search_paths_first
2434         SLIBSUF=".dylib"
2435         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2436         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2437         FFSERVERLDFLAGS=-Wl,-bind_at_load
2438         objformat="macho"
2439         enabled x86_64 && objformat="macho64"
2440         enabled_any pic shared ||
2441             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2442         ;;
2443     mingw32*)
2444         if test $target_os = "mingw32ce"; then
2445             disable network
2446         else
2447             target_os=mingw32
2448         fi
2449         LIBTARGET=i386
2450         if enabled x86_64; then
2451             enable malloc_aligned
2452             LIBTARGET=x64
2453         elif enabled arm; then
2454             LIBTARGET=arm-wince
2455         fi
2456         shlibdir_default="$bindir_default"
2457         SLIBPREF=""
2458         SLIBSUF=".dll"
2459         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2460         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2461         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2462         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2463             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2464             install -d "$(LIBDIR)"; \
2465             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2466         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2467         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'
2468         objformat="win32"
2469         enable dos_paths
2470         check_cflags -fno-common
2471         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2472                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2473                 die "ERROR: MinGW runtime version must be >= 3.15."
2474         add_cppflags -U__STRICT_ANSI__
2475         ;;
2476     cygwin*)
2477         target_os=cygwin
2478         shlibdir_default="$bindir_default"
2479         SLIBPREF="cyg"
2480         SLIBSUF=".dll"
2481         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2482         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2483         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2484         objformat="win32"
2485         enable dos_paths
2486         check_cflags -fno-common
2487         add_cppflags -U__STRICT_ANSI__
2488         ;;
2489     *-dos|freedos|opendos)
2490         network_extralibs="-lsocket"
2491         objformat="coff"
2492         enable dos_paths
2493         add_cppflags -U__STRICT_ANSI__
2494         ;;
2495     linux)
2496         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2497         enable dv1394
2498         ;;
2499     irix*)
2500         target_os=irix
2501         ranlib="echo ignoring ranlib"
2502         ;;
2503     os/2*)
2504         strip="lxlite -CS"
2505         ln_s="cp -f"
2506         objformat="aout"
2507         add_cppflags -D_GNU_SOURCE
2508         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2509         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2510         FFSERVERLDFLAGS=""
2511         LIBSUF="_s.a"
2512         SLIBPREF=""
2513         SLIBSUF=".dll"
2514         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2515         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2516         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2517           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2518           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2519           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2520           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2521           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2522         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2523           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2524         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2525         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2526         enable dos_paths
2527         ;;
2528     gnu/kfreebsd)
2529         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2530         ;;
2531     gnu)
2532         ;;
2533     qnx)
2534         add_cppflags -D_QNX_SOURCE
2535         network_extralibs="-lsocket"
2536         ;;
2537     symbian)
2538         SLIBSUF=".dll"
2539         enable dos_paths
2540         add_cflags --include=$sysinclude/gcce/gcce.h
2541         ;;
2542     none)
2543         ;;
2544     *)
2545         die "Unknown OS '$target_os'."
2546         ;;
2547 esac
2548
2549 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2550
2551 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2552
2553 set_default $PATHS_LIST
2554
2555 # we need to build at least one lib type
2556 if ! enabled_any static shared; then
2557     cat <<EOF
2558 At least one library type must be built.
2559 Specify --enable-static to build the static libraries or --enable-shared to
2560 build the shared libraries as well. To only build the shared libraries specify
2561 --disable-static in addition to --enable-shared.
2562 EOF
2563     exit 1;
2564 fi
2565
2566 disabled static && LIBNAME=""
2567
2568 die_license_disabled() {
2569     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2570 }
2571
2572 die_license_disabled gpl libx264
2573 die_license_disabled gpl libxavs
2574 die_license_disabled gpl libxvid
2575 die_license_disabled gpl x11grab
2576
2577 die_license_disabled nonfree libfaac
2578
2579 die_license_disabled version3 libopencore_amrnb
2580 die_license_disabled version3 libopencore_amrwb
2581 die_license_disabled version3 libvo_aacenc
2582 die_license_disabled version3 libvo_amrwbenc
2583
2584 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2585
2586 disabled optimizations || check_cflags -fomit-frame-pointer
2587
2588 enable_pic() {
2589     enable pic
2590     add_cppflags -DPIC
2591     add_cflags   -fPIC
2592     add_asflags  -fPIC
2593 }
2594
2595 enabled pic && enable_pic
2596
2597 check_cc <<EOF || die "Symbol mangling check failed."
2598 int ff_extern;
2599 EOF
2600 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2601 extern_prefix=${sym%%ff_extern*}
2602
2603 check_cc <<EOF && enable inline_asm
2604 void foo(void) { __asm__ volatile ("" ::); }
2605 EOF
2606
2607 _restrict=
2608 for restrict_keyword in restrict __restrict__ __restrict; do
2609     check_cc <<EOF && _restrict=$restrict_keyword && break
2610 void foo(char * $restrict_keyword p);
2611 EOF
2612 done
2613
2614 check_cc <<EOF && enable attribute_packed
2615 struct { int x; } __attribute__((packed)) x;
2616 EOF
2617
2618 check_cc <<EOF && enable attribute_may_alias
2619 union { int x; } __attribute__((may_alias)) x;
2620 EOF
2621
2622 check_cc <<EOF || die "endian test failed"
2623 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2624 EOF
2625 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2626
2627 if enabled alpha; then
2628
2629     check_cflags -mieee
2630
2631 elif enabled arm; then
2632
2633     enabled thumb && check_cflags -mthumb || check_cflags -marm
2634     nogas=die
2635
2636     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2637         enable vfp_args
2638     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2639         case "${cross_prefix:-$cc}" in
2640             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2641             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2642 __asm__ (".eabi_attribute 28, 1");
2643 int main(void) { return 0; }
2644 EOF
2645         esac
2646         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2647     fi
2648
2649     # We have to check if pld is a nop and disable it.
2650     check_asm pld '"pld [r0]"'
2651
2652     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2653     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2654     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2655     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2656     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2657     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2658     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2659
2660     enabled_all armv6t2 shared !pic && enable_pic
2661
2662 elif enabled mips; then
2663
2664     check_asm loongson '"dmult.g $1, $2, $3"'
2665     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2666
2667 elif enabled ppc; then
2668
2669     enable local_aligned_8 local_aligned_16
2670
2671     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2672     check_asm ibm_asm   '"add 0, 0, 0"'
2673     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2674     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2675
2676     # AltiVec flags: The FSF version of GCC differs from the Apple version
2677     if enabled altivec; then
2678         nogas=warn
2679         check_cflags -maltivec -mabi=altivec &&
2680         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2681         check_cflags -faltivec
2682
2683         # check if our compiler supports Motorola AltiVec C API
2684         check_cc <<EOF || disable altivec
2685 $inc_altivec_h
2686 int main(void) {
2687     vector signed int v1, v2, v3;
2688     v1 = vec_add(v2,v3);
2689     return 0;
2690 }
2691 EOF
2692
2693         # check if our compiler supports braces for vector declarations
2694         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2695 $inc_altivec_h
2696 int main (void) { (vector int) {1}; return 0; }
2697 EOF
2698     fi
2699
2700 elif enabled sparc; then
2701
2702     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2703         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2704
2705 elif enabled x86; then
2706
2707     enable local_aligned_8 local_aligned_16
2708
2709     # check whether EBP is available on x86
2710     # As 'i' is stored on the stack, this program will crash
2711     # if the base pointer is used to access it because the
2712     # base pointer is cleared in the inline assembly code.
2713     check_exec_crash <<EOF && enable ebp_available
2714     volatile int i=0;
2715     __asm__ volatile (
2716         "xorl %%ebp, %%ebp"
2717     ::: "%ebp");
2718     return i;
2719 EOF
2720
2721     # check whether EBX is available on x86
2722     check_asm ebx_available '""::"b"(0)' &&
2723         check_asm ebx_available '"":::"%ebx"'
2724
2725     # check whether xmm clobbers are supported
2726     check_asm xmm_clobbers '"":::"%xmm0"'
2727
2728     # check whether binutils is new enough to compile SSSE3/MMX2
2729     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2730     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2731
2732     check_asm bswap '"bswap %%eax" ::: "%eax"'
2733
2734     if ! disabled_any asm mmx yasm; then
2735         if check_cmd $yasmexe --version; then
2736             enabled x86_64 && yasm_extra="-m amd64"
2737             yasm_debug="-g dwarf2"
2738         elif check_cmd nasm -v; then
2739             yasmexe=nasm
2740             yasm_debug="-g -F dwarf"
2741             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2742         fi
2743
2744         YASMFLAGS="-f $objformat $yasm_extra"
2745         enabled pic               && append YASMFLAGS "-DPIC"
2746         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2747         case "$objformat" in
2748             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2749         esac
2750
2751         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2752             die "yasm not found, use --disable-yasm for a crippled build"
2753         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2754     fi
2755
2756     case "$cpu" in
2757         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2758             disable fast_clz
2759         ;;
2760     esac
2761
2762 fi
2763
2764 if enabled asm; then
2765     as=${gas:=$as}
2766     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2767         $nogas "GNU assembler not found, install gas-preprocessor"
2768 fi
2769
2770 check_ldflags -Wl,--as-needed
2771
2772 if check_func dlopen; then
2773     ldl=
2774 elif check_func dlopen -ldl; then
2775     ldl=-ldl
2776 fi
2777
2778 if enabled network; then
2779     check_type "sys/types.h sys/socket.h" socklen_t
2780     check_type netdb.h "struct addrinfo"
2781     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2782     check_type netinet/in.h "struct sockaddr_in6"
2783     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2784     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2785     # Prefer arpa/inet.h over winsock2
2786     if check_header arpa/inet.h ; then
2787         check_func closesocket
2788     elif check_header winsock2.h ; then
2789         check_func_headers winsock2.h closesocket -lws2 && \
2790             network_extralibs="-lws2" || \
2791         { check_func_headers winsock2.h closesocket -lws2_32 && \
2792             network_extralibs="-lws2_32"; }
2793         check_type ws2tcpip.h socklen_t
2794         check_type ws2tcpip.h "struct addrinfo"
2795         check_type ws2tcpip.h "struct ipv6_mreq"
2796         check_type ws2tcpip.h "struct sockaddr_in6"
2797         check_type ws2tcpip.h "struct sockaddr_storage"
2798         check_struct winsock2.h "struct sockaddr" sa_len
2799     else
2800         disable network
2801     fi
2802 fi
2803
2804 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2805 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2806
2807 check_func  fcntl
2808 check_func  fork
2809 check_func  getaddrinfo $network_extralibs
2810 check_func  gethrtime
2811 check_func  getrusage
2812 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2813 check_func  inet_aton $network_extralibs
2814 check_func  isatty
2815 check_func  localtime_r
2816 check_func  ${malloc_prefix}memalign            && enable memalign
2817 check_func  mkstemp
2818 check_func  mmap
2819 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2820 check_func  setrlimit
2821 check_func  strerror_r
2822 check_func  strtok_r
2823 check_func_headers conio.h kbhit
2824 check_func_headers io.h setmode
2825 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2826 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2827 check_func_headers windows.h GetProcessTimes
2828 check_func_headers windows.h MapViewOfFile
2829 check_func_headers windows.h VirtualAlloc
2830
2831 check_header dlfcn.h
2832 check_header dxva2api.h
2833 check_header libcrystalhd/libcrystalhd_if.h
2834 check_header malloc.h
2835 check_header poll.h
2836 check_header sys/mman.h
2837 check_header sys/resource.h
2838 check_header sys/select.h
2839 check_header termios.h
2840 check_header vdpau/vdpau.h
2841 check_header vdpau/vdpau_x11.h
2842 check_header X11/extensions/XvMClib.h
2843
2844 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2845
2846 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2847 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2848
2849 # check for some common methods of building with pthread support
2850 # do this before the optional library checks as some of them require pthreads
2851 if ! disabled pthreads && ! enabled w32threads; then
2852     enable pthreads
2853     if check_func pthread_create; then
2854         :
2855     elif check_func pthread_create -pthread; then
2856         add_cflags -pthread
2857         add_extralibs -pthread
2858     elif check_func pthread_create -pthreads; then
2859         add_cflags -pthreads
2860         add_extralibs -pthreads
2861     elif check_func pthread_create -lpthreadGC2; then
2862         add_extralibs -lpthreadGC2
2863     elif ! check_lib pthread.h pthread_create -lpthread; then
2864         disable pthreads
2865     fi
2866 fi
2867
2868 for thread in $THREADS_LIST; do
2869     if enabled $thread; then
2870         test -n "$thread_type" &&
2871             die "ERROR: Only one thread type must be selected." ||
2872             thread_type="$thread"
2873     fi
2874 done
2875
2876 check_lib math.h sin -lm && LIBM="-lm"
2877 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2878 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2879
2880 check_mathfunc exp2
2881 check_mathfunc exp2f
2882 check_mathfunc llrint
2883 check_mathfunc llrintf
2884 check_mathfunc log2
2885 check_mathfunc log2f
2886 check_mathfunc lrint
2887 check_mathfunc lrintf
2888 check_mathfunc round
2889 check_mathfunc roundf
2890 check_mathfunc trunc
2891 check_mathfunc truncf
2892
2893 # these are off by default, so fail if requested and not available
2894 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2895 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2896 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2897 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2898 enabled libdirac   && require_pkg_config dirac                          \
2899     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2900     "dirac_decoder_init dirac_encoder_init"
2901 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2902 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2903 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2904 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2905 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2906 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2907 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2908 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2909 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2910 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2911 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2912 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2913 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2914 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2915 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2916 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2917 enabled libvpx     && {
2918     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2919                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2920     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2921                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2922 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2923                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2924                         die "ERROR: libx264 version must be >= 0.115."; }
2925 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2926 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2927 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2928                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2929                         die "ERROR: openal not found"; } &&
2930                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2931                         die "ERROR: openal version must be 1.1 or compatible"; }
2932 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2933
2934 SDL_CONFIG="${cross_prefix}sdl-config"
2935 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2936     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2937     enable sdl &&
2938     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2939 else
2940   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2941     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2942     sdl_libs=$("${SDL_CONFIG}" --libs)
2943     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2944     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2945     enable sdl &&
2946     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2947   fi
2948 fi
2949 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2950
2951 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2952
2953 check_header linux/fb.h
2954 check_header linux/videodev.h
2955 check_header linux/videodev2.h
2956 check_header sys/videoio.h
2957
2958 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2959 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2960 # w32api 3.12 had it defined wrong
2961 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2962
2963 check_type "dshow.h" IBaseFilter
2964
2965 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2966 { check_header dev/bktr/ioctl_meteor.h &&
2967   check_header dev/bktr/ioctl_bt848.h; } ||
2968 { check_header machine/ioctl_meteor.h &&
2969   check_header machine/ioctl_bt848.h; } ||
2970 { check_header dev/video/meteor/ioctl_meteor.h &&
2971   check_header dev/video/bktr/ioctl_bt848.h; } ||
2972 check_header dev/ic/bt8xx.h
2973
2974 check_header sndio.h
2975 if check_struct sys/soundcard.h audio_buf_info bytes; then
2976     enable_safe sys/soundcard.h
2977 else
2978     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2979     #include <sys/soundcard.h>
2980     audio_buf_info abc;
2981 EOF
2982 fi
2983 check_header soundcard.h
2984
2985 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2986
2987 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
2988
2989 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2990
2991 enabled x11grab                         &&
2992 check_header X11/Xlib.h                 &&
2993 check_header X11/extensions/XShm.h      &&
2994 check_header X11/extensions/Xfixes.h    &&
2995 check_func XOpenDisplay -lX11           &&
2996 check_func XShmCreateImage -lX11 -lXext &&
2997 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2998
2999 if ! disabled vaapi; then
3000     check_lib va/va.h vaInitialize -lva && {
3001         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3002         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3003     } || disable vaapi
3004 fi
3005
3006 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3007 check_cpp_condition \
3008     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3009     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3010       disable vdpau; }
3011 fi
3012
3013 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3014
3015 # add some useful compiler flags if supported
3016 check_cflags -Wdeclaration-after-statement
3017 check_cflags -Wall
3018 check_cflags -Wno-parentheses
3019 check_cflags -Wno-switch
3020 check_cflags -Wno-format-zero-length
3021 check_cflags -Wdisabled-optimization
3022 check_cflags -Wpointer-arith
3023 check_cflags -Wredundant-decls
3024 check_cflags -Wno-pointer-sign
3025 check_cflags -Wcast-qual
3026 check_cflags -Wwrite-strings
3027 check_cflags -Wtype-limits
3028 check_cflags -Wundef
3029 check_cflags -Wmissing-prototypes
3030 check_cflags -Wno-pointer-to-int-cast
3031 enabled extra_warnings && check_cflags -Winline
3032
3033 # add some linker flags
3034 check_ldflags -Wl,--warn-common
3035 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
3036 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3037
3038 echo "X{};" > $TMPV
3039 if test_ldflags -Wl,--version-script,$TMPV; then
3040     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3041     check_cc <<EOF && enable symver_asm_label
3042 void ff_foo(void) __asm__ ("av_foo@VERSION");
3043 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3044 EOF
3045     check_cc <<EOF && enable symver_gnu_asm
3046 __asm__(".symver ff_foo,av_foo@VERSION");
3047 void ff_foo(void) {}
3048 EOF
3049 fi
3050
3051 if [ -n "$optflags" ]; then
3052     add_cflags $optflags
3053 elif enabled small; then
3054     add_cflags $size_cflags
3055 elif enabled optimizations; then
3056     add_cflags $speed_cflags
3057 else
3058     add_cflags $noopt_cflags
3059 fi
3060 check_cflags -fno-math-errno
3061 check_cflags -fno-signed-zeros
3062
3063 if enabled icc; then
3064     # Just warnings, no remarks
3065     check_cflags -w1
3066     # -wd: Disable following warnings
3067     # 144, 167, 556: -Wno-pointer-sign
3068     # 1292: attribute "foo" ignored
3069     # 10006: ignoring unknown option -fno-signed-zeros
3070     # 10148: ignoring unknown option -Wno-parentheses
3071     # 10156: ignoring option '-W'; no argument required
3072     check_cflags -wd144,167,556,1292,10006,10148,10156
3073     # 11030: Warning unknown option --as-needed
3074     # 10156: ignoring option '-export'; no argument required
3075     check_ldflags -wd10156,11030
3076     # Allow to compile with optimizations
3077     check_ldflags -march=$cpu
3078     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3079     enable ebp_available
3080     if enabled x86_32; then
3081         test ${icc_version%%.*} -ge 11 && \
3082             check_cflags -falign-stack=maintain-16-byte || \
3083             disable aligned_stack
3084     fi
3085 elif enabled ccc; then
3086     # disable some annoying warnings
3087     add_cflags -msg_disable cvtu32to64
3088     add_cflags -msg_disable embedcomment
3089     add_cflags -msg_disable needconstext
3090     add_cflags -msg_disable nomainieee
3091     add_cflags -msg_disable ptrmismatch1
3092     add_cflags -msg_disable unreachcode
3093 elif enabled gcc; then
3094     check_cflags -fno-tree-vectorize
3095     check_cflags -Werror=implicit-function-declaration
3096     check_cflags -Werror=missing-prototypes
3097 elif enabled llvm_gcc; then
3098     check_cflags -mllvm -stack-alignment=16
3099 elif enabled clang; then
3100     check_cflags -mllvm -stack-alignment=16
3101     check_cflags -Qunused-arguments
3102 elif enabled armcc; then
3103     # 2523: use of inline assembler is deprecated
3104     add_cflags -W${armcc_opt},--diag_suppress=2523
3105     add_cflags -W${armcc_opt},--diag_suppress=1207
3106     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3107     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3108     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3109     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3110 elif enabled tms470; then
3111     add_cflags -pds=824 -pds=837
3112 elif enabled pathscale; then
3113     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3114 fi
3115
3116 enabled_any $THREADS_LIST      && enable threads
3117
3118 check_deps $CONFIG_LIST       \
3119            $CONFIG_EXTRA      \
3120            $HAVE_LIST         \
3121            $DECODER_LIST      \
3122            $ENCODER_LIST      \
3123            $HWACCEL_LIST      \
3124            $PARSER_LIST       \
3125            $BSF_LIST          \
3126            $DEMUXER_LIST      \
3127            $MUXER_LIST        \
3128            $FILTER_LIST       \
3129            $INDEV_LIST        \
3130            $OUTDEV_LIST       \
3131            $PROTOCOL_LIST     \
3132            $ACODEC_TESTS      \
3133            $VCODEC_TESTS      \
3134            $LAVF_TESTS        \
3135            $LAVFI_TESTS       \
3136            $SEEK_TESTS        \
3137
3138 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3139
3140 if test $target_os == "haiku"; then
3141     disable memalign
3142     disable posix_memalign
3143 fi
3144
3145 ! enabled_any memalign posix_memalign malloc_aligned &&
3146     enabled_any $need_memalign && enable memalign_hack
3147
3148 echo "install prefix            $prefix"
3149 echo "source path               $source_path"
3150 echo "C compiler                $cc"
3151 echo "ARCH                      $arch ($cpu)"
3152 if test "$build_suffix" != ""; then
3153     echo "build suffix              $build_suffix"
3154 fi
3155 if test "$extra_version" != ""; then
3156     echo "version string suffix     $extra_version"
3157 fi
3158 echo "big-endian                ${bigendian-no}"
3159 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3160 if enabled x86; then
3161     echo "${yasmexe}                      ${yasm-no}"
3162     echo "MMX enabled               ${mmx-no}"
3163     echo "MMX2 enabled              ${mmx2-no}"
3164     echo "3DNow! enabled            ${amd3dnow-no}"
3165     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3166     echo "SSE enabled               ${sse-no}"
3167     echo "SSSE3 enabled             ${ssse3-no}"
3168     echo "AVX enabled               ${avx-no}"
3169     echo "CMOV enabled              ${cmov-no}"
3170     echo "CMOV is fast              ${fast_cmov-no}"
3171     echo "EBX available             ${ebx_available-no}"
3172     echo "EBP available             ${ebp_available-no}"
3173 fi
3174 if enabled arm; then
3175     echo "ARMv5TE enabled           ${armv5te-no}"
3176     echo "ARMv6 enabled             ${armv6-no}"
3177     echo "ARMv6T2 enabled           ${armv6t2-no}"
3178     echo "ARM VFP enabled           ${armvfp-no}"
3179     echo "IWMMXT enabled            ${iwmmxt-no}"
3180     echo "NEON enabled              ${neon-no}"
3181 fi
3182 if enabled mips; then
3183     echo "MMI enabled               ${mmi-no}"
3184 fi
3185 if enabled ppc; then
3186     echo "AltiVec enabled           ${altivec-no}"
3187     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3188     echo "dcbzl available           ${dcbzl-no}"
3189 fi
3190 if enabled sparc; then
3191     echo "VIS enabled               ${vis-no}"
3192 fi
3193 echo "debug symbols             ${debug-no}"
3194 echo "strip symbols             ${stripping-no}"
3195 echo "optimize for size         ${small-no}"
3196 echo "optimizations             ${optimizations-no}"
3197 echo "static                    ${static-no}"
3198 echo "shared                    ${shared-no}"
3199 echo "postprocessing support    ${postproc-no}"
3200 echo "new filter support        ${avfilter-no}"
3201 echo "network support           ${network-no}"
3202 echo "threading support         ${thread_type-no}"
3203 echo "SDL support               ${sdl-no}"
3204 echo "Sun medialib support      ${mlib-no}"
3205 echo "AVISynth enabled          ${avisynth-no}"
3206 echo "libcelt enabled           ${libcelt-no}"
3207 echo "frei0r enabled            ${frei0r-no}"
3208 echo "libdc1394 support         ${libdc1394-no}"
3209 echo "libdirac enabled          ${libdirac-no}"
3210 echo "libfaac enabled           ${libfaac-no}"
3211 echo "libgsm enabled            ${libgsm-no}"
3212 echo "libmp3lame enabled        ${libmp3lame-no}"
3213 echo "libnut enabled            ${libnut-no}"
3214 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3215 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3216 echo "libopencv support         ${libopencv-no}"
3217 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3218 echo "librtmp enabled           ${librtmp-no}"
3219 echo "libschroedinger enabled   ${libschroedinger-no}"
3220 echo "libspeex enabled          ${libspeex-no}"
3221 echo "libtheora enabled         ${libtheora-no}"
3222 echo "libva enabled             ${vaapi-no}"
3223 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3224 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3225 echo "libvorbis enabled         ${libvorbis-no}"
3226 echo "libvpx enabled            ${libvpx-no}"
3227 echo "libx264 enabled           ${libx264-no}"
3228 echo "libxavs enabled           ${libxavs-no}"
3229 echo "libxvid enabled           ${libxvid-no}"
3230 echo "openal enabled            ${openal-no}"
3231 echo "zlib enabled              ${zlib-no}"
3232 echo "bzlib enabled             ${bzlib-no}"
3233 echo
3234
3235 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3236     echo "Enabled ${type}s:"
3237     eval list=\$$(toupper $type)_LIST
3238     print_enabled '_*' $list | sort | pr -r -3 -t
3239     echo
3240 done
3241
3242 license="LGPL version 2.1 or later"
3243 if enabled nonfree; then
3244     license="nonfree and unredistributable"
3245 elif enabled gplv3; then
3246     license="GPL version 3 or later"
3247 elif enabled lgplv3; then
3248     license="LGPL version 3 or later"
3249 elif enabled gpl; then
3250     license="GPL version 2 or later"
3251 fi
3252
3253 echo "License: $license"
3254
3255 echo "Creating config.mak and config.h..."
3256
3257 # build tree in object directory if source path is different from current one
3258 if enabled source_path_used; then
3259     DIRS="
3260         doc
3261         libavcodec
3262         libavcodec/$arch
3263         libavdevice
3264         libavfilter
3265         libavfilter/$arch
3266         libavfilter/libmpcodecs
3267         libavfilter/libmpcodecs/libvo
3268         libavformat
3269         libavutil
3270         libavutil/$arch
3271         libpostproc
3272         libswscale
3273         libswscale/$arch
3274         tests
3275         tests/fate
3276         tools
3277     "
3278
3279     map 'mkdir -p $v' $DIRS;
3280     $ln_s "$source_path/Makefile" .
3281 fi
3282
3283 enabled stripping || strip="echo skipping strip"
3284
3285 config_files="$TMPH config.mak"
3286
3287 cat > config.mak <<EOF
3288 # Automatically generated by configure - do not modify!
3289 ifndef FFMPEG_CONFIG_MAK
3290 FFMPEG_CONFIG_MAK=1
3291 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3292 prefix=$prefix
3293 LIBDIR=\$(DESTDIR)$libdir
3294 SHLIBDIR=\$(DESTDIR)$shlibdir
3295 INCDIR=\$(DESTDIR)$incdir
3296 BINDIR=\$(DESTDIR)$bindir
3297 DATADIR=\$(DESTDIR)$datadir
3298 MANDIR=\$(DESTDIR)$mandir
3299 SRC_PATH=$source_path
3300 CC_IDENT=$cc_ident
3301 ARCH=$arch
3302 CC=$cc
3303 AS=$as
3304 LD=$ld
3305 DEPCC=$dep_cc
3306 YASM=$yasmexe
3307 YASMDEP=$yasmexe
3308 AR=$ar
3309 RANLIB=$ranlib
3310 CP=cp -p
3311 LN_S=$ln_s
3312 STRIP=$strip
3313 CPPFLAGS=$CPPFLAGS
3314 CFLAGS=$CFLAGS
3315 ASFLAGS=$ASFLAGS
3316 AS_O=$CC_O
3317 CC_O=$CC_O
3318 LDFLAGS=$LDFLAGS
3319 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3320 SHFLAGS=$SHFLAGS
3321 YASMFLAGS=$YASMFLAGS
3322 BUILDSUF=$build_suffix
3323 FULLNAME=$FULLNAME
3324 LIBPREF=$LIBPREF
3325 LIBSUF=$LIBSUF
3326 LIBNAME=$LIBNAME
3327 SLIBPREF=$SLIBPREF
3328 SLIBSUF=$SLIBSUF
3329 EXESUF=$EXESUF
3330 EXTRA_VERSION=$extra_version
3331 DEPFLAGS=$DEPFLAGS
3332 CCDEP=$CCDEP
3333 ASDEP=$ASDEP
3334 CC_DEPFLAGS=$CC_DEPFLAGS
3335 AS_DEPFLAGS=$AS_DEPFLAGS
3336 HOSTCC=$host_cc
3337 HOSTCFLAGS=$host_cflags
3338 HOSTEXESUF=$HOSTEXESUF
3339 HOSTLDFLAGS=$host_ldflags
3340 HOSTLIBS=$host_libs
3341 TARGET_EXEC=$target_exec
3342 TARGET_PATH=$target_path
3343 SDL_LIBS=$sdl_libs
3344 SDL_CFLAGS=$sdl_cflags
3345 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3346 EXTRALIBS=$extralibs
3347 INSTALL=$install
3348 LIBTARGET=${LIBTARGET}
3349 SLIBNAME=${SLIBNAME}
3350 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3351 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3352 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3353 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3354 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3355 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3356 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3357 EOF
3358
3359 get_version(){
3360     name=$1
3361     file=$source_path/$2
3362     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3363     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3364     lcname=$(tolower $name)
3365     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3366     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3367 }
3368
3369 get_version LIBSWSCALE  libswscale/swscale.h
3370 get_version LIBPOSTPROC libpostproc/postprocess.h
3371 get_version LIBAVCODEC  libavcodec/version.h
3372 get_version LIBAVDEVICE libavdevice/avdevice.h
3373 get_version LIBAVFORMAT libavformat/version.h
3374 get_version LIBAVUTIL   libavutil/avutil.h
3375 get_version LIBAVFILTER libavfilter/avfilter.h
3376
3377 cat > $TMPH <<EOF
3378 /* Automatically generated by configure - do not modify! */
3379 #ifndef FFMPEG_CONFIG_H
3380 #define FFMPEG_CONFIG_H
3381 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3382 #define FFMPEG_LICENSE "$(c_escape $license)"
3383 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3384 #define CC_TYPE "$cc_type"
3385 #define CC_VERSION $cc_version
3386 #define restrict $_restrict
3387 #define EXTERN_PREFIX "${extern_prefix}"
3388 #define EXTERN_ASM ${extern_prefix}
3389 #define SLIBSUF "$SLIBSUF"
3390 EOF
3391
3392 test -n "$malloc_prefix" &&
3393     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3394
3395 if enabled small || disabled optimizations; then
3396     echo "#undef  av_always_inline"  >> $TMPH
3397     if enabled small; then
3398         echo "#define av_always_inline inline"  >> $TMPH
3399     else
3400         echo "#define av_always_inline av_unused"  >> $TMPH
3401     fi
3402 fi
3403
3404 if enabled yasm; then
3405     append config_files $TMPASM
3406     printf '' >$TMPASM
3407 fi
3408
3409 print_config ARCH_   "$config_files" $ARCH_LIST
3410 print_config HAVE_   "$config_files" $HAVE_LIST
3411 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3412                                      $CONFIG_EXTRA      \
3413                                      $DECODER_LIST      \
3414                                      $ENCODER_LIST      \
3415                                      $HWACCEL_LIST      \
3416                                      $PARSER_LIST       \
3417                                      $BSF_LIST          \
3418                                      $DEMUXER_LIST      \
3419                                      $MUXER_LIST        \
3420                                      $FILTER_LIST       \
3421                                      $PROTOCOL_LIST     \
3422                                      $INDEV_LIST        \
3423                                      $OUTDEV_LIST       \
3424
3425 cat >>config.mak <<EOF
3426 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3427 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3428 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3429 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3430 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3431 EOF
3432
3433 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3434 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3435
3436 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3437 cp_if_changed $TMPH config.h
3438 touch .config
3439
3440 enabled yasm && cp_if_changed $TMPASM config.asm
3441
3442 cat > $TMPH <<EOF
3443 /* Generated by ffconf */
3444 #ifndef AVUTIL_AVCONFIG_H
3445 #define AVUTIL_AVCONFIG_H
3446 EOF
3447
3448 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3449
3450 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3451
3452 cp_if_changed $TMPH libavutil/avconfig.h
3453
3454 test -n "$WARNINGS" && printf "\n$WARNINGS"
3455
3456 # build pkg-config files
3457
3458 pkgconfig_generate(){
3459 name=$1
3460 shortname=${name#lib}${build_suffix}
3461 comment=$2
3462 version=$3
3463 libs=$4
3464 requires=$5
3465 enabled ${name#lib} || return 0
3466 cat <<EOF > $name/$name.pc
3467 prefix=$prefix
3468 exec_prefix=\${prefix}
3469 libdir=$libdir
3470 includedir=$incdir
3471
3472 Name: $name
3473 Description: $comment
3474 Version: $version
3475 Requires: $(enabled shared || echo $requires)
3476 Requires.private: $(enabled shared && echo $requires)
3477 Conflicts:
3478 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3479 Libs.private: $(enabled shared && echo $libs)
3480 Cflags: -I\${includedir}
3481 EOF
3482 cat <<EOF > $name/$name-uninstalled.pc
3483 prefix=
3484 exec_prefix=
3485 libdir=\${pcfiledir}
3486 includedir=${source_path}
3487
3488 Name: $name
3489 Description: $comment
3490 Version: $version
3491 Requires: $requires
3492 Conflicts:
3493 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3494 Cflags: -I\${includedir}
3495 EOF
3496 }
3497
3498 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3499 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3500 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3501 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3502 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3503 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3504 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"