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 [autodetect]
110   --enable-vdpau           enable VDPAU code [autodetect]
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" && echo "$2 is unchanged" && return
882     mkdir -p "$(dirname $2)"
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     posix_memalign
1102     round
1103     roundf
1104     sdl
1105     sdl_video_size
1106     setmode
1107     sndio_h
1108     socklen_t
1109     soundcard_h
1110     poll_h
1111     setrlimit
1112     strerror_r
1113     strptime
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 flashsv2_decoder_select="zlib"
1284 flv_decoder_select="h263_decoder"
1285 flv_encoder_select="h263_encoder"
1286 fraps_decoder_select="huffman"
1287 h261_encoder_select="aandct"
1288 h263_decoder_select="h263_parser"
1289 h263_encoder_select="aandct"
1290 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1291 h263i_decoder_select="h263_decoder"
1292 h263p_encoder_select="h263_encoder"
1293 h264_decoder_select="golomb h264dsp h264pred"
1294 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1295 h264_dxva2_hwaccel_deps="dxva2api_h"
1296 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1297 h264_vaapi_hwaccel_select="vaapi"
1298 h264_vdpau_decoder_select="vdpau h264_decoder"
1299 imc_decoder_select="fft mdct sinewin"
1300 jpegls_decoder_select="golomb"
1301 jpegls_encoder_select="golomb"
1302 ljpeg_encoder_select="aandct"
1303 loco_decoder_select="golomb"
1304 mjpeg_encoder_select="aandct"
1305 mlp_decoder_select="mlp_parser"
1306 mp1_decoder_select="mpegaudiodsp"
1307 mp2_decoder_select="mpegaudiodsp"
1308 mp3adu_decoder_select="mpegaudiodsp"
1309 mp3_decoder_select="mpegaudiodsp"
1310 mp3on4_decoder_select="mpegaudiodsp"
1311 mp1float_decoder_select="mpegaudiodsp"
1312 mp2float_decoder_select="mpegaudiodsp"
1313 mp3adufloat_decoder_select="mpegaudiodsp"
1314 mp3float_decoder_select="mpegaudiodsp"
1315 mp3on4float_decoder_select="mpegaudiodsp"
1316 mpeg1video_encoder_select="aandct"
1317 mpeg2video_encoder_select="aandct"
1318 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1319 mpeg4_encoder_select="h263_encoder"
1320 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1321 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1322 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1323 mpeg2_crystalhd_decoder_select="crystalhd"
1324 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1325 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1326 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1327 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1328 mpeg4_crystalhd_decoder_select="crystalhd"
1329 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1330 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1331 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1332 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1333 msmpeg4_crystalhd_decoder_select="crystalhd"
1334 msmpeg4v1_decoder_select="h263_decoder"
1335 msmpeg4v1_encoder_select="h263_encoder"
1336 msmpeg4v2_decoder_select="h263_decoder"
1337 msmpeg4v2_encoder_select="h263_encoder"
1338 msmpeg4v3_decoder_select="h263_decoder"
1339 msmpeg4v3_encoder_select="h263_encoder"
1340 nellymoser_decoder_select="mdct sinewin"
1341 nellymoser_encoder_select="mdct sinewin"
1342 png_decoder_select="zlib"
1343 png_encoder_select="zlib"
1344 qcelp_decoder_select="lsp"
1345 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1346 ra_144_encoder_select="lpc"
1347 rv10_decoder_select="h263_decoder"
1348 rv10_encoder_select="h263_encoder"
1349 rv20_decoder_select="h263_decoder"
1350 rv20_encoder_select="h263_encoder"
1351 rv30_decoder_select="golomb h264pred"
1352 rv40_decoder_select="golomb h264pred"
1353 shorten_decoder_select="golomb"
1354 sipr_decoder_select="lsp"
1355 snow_decoder_select="dwt"
1356 snow_encoder_select="aandct dwt"
1357 sonic_decoder_select="golomb"
1358 sonic_encoder_select="golomb"
1359 sonic_ls_encoder_select="golomb"
1360 svq1_encoder_select="aandct"
1361 svq3_decoder_select="golomb h264dsp h264pred"
1362 svq3_decoder_suggest="zlib"
1363 theora_decoder_select="vp3_decoder"
1364 tiff_decoder_suggest="zlib"
1365 tiff_encoder_suggest="zlib"
1366 truehd_decoder_select="mlp_decoder"
1367 tscc_decoder_select="zlib"
1368 twinvq_decoder_select="mdct lsp sinewin"
1369 vc1_decoder_select="h263_decoder"
1370 vc1_crystalhd_decoder_select="crystalhd"
1371 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1372 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1373 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1374 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1375 vorbis_decoder_select="mdct"
1376 vorbis_encoder_select="mdct"
1377 vp6_decoder_select="huffman"
1378 vp6a_decoder_select="vp6_decoder"
1379 vp6f_decoder_select="vp6_decoder"
1380 vp8_decoder_select="h264pred"
1381 wmapro_decoder_select="mdct sinewin"
1382 wmav1_decoder_select="mdct sinewin"
1383 wmav1_encoder_select="mdct sinewin"
1384 wmav2_decoder_select="mdct sinewin"
1385 wmav2_encoder_select="mdct sinewin"
1386 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1387 wmv1_decoder_select="h263_decoder"
1388 wmv1_encoder_select="h263_encoder"
1389 wmv2_decoder_select="h263_decoder"
1390 wmv2_encoder_select="h263_encoder"
1391 wmv3_decoder_select="vc1_decoder"
1392 wmv3_crystalhd_decoder_select="crystalhd"
1393 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1394 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1395 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1396 zlib_decoder_select="zlib"
1397 zlib_encoder_select="zlib"
1398 zmbv_decoder_select="zlib"
1399 zmbv_encoder_select="zlib"
1400
1401 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1402 vaapi_deps="va_va_h"
1403 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1404
1405 # parsers
1406 h264_parser_select="golomb h264dsp h264pred"
1407
1408 # external libraries
1409 libcelt_decoder_deps="libcelt"
1410 libdirac_decoder_deps="libdirac !libschroedinger"
1411 libdirac_encoder_deps="libdirac"
1412 libfaac_encoder_deps="libfaac"
1413 libgsm_decoder_deps="libgsm"
1414 libgsm_encoder_deps="libgsm"
1415 libgsm_ms_decoder_deps="libgsm"
1416 libgsm_ms_encoder_deps="libgsm"
1417 libmp3lame_encoder_deps="libmp3lame"
1418 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1419 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1420 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1421 libopenjpeg_decoder_deps="libopenjpeg"
1422 libschroedinger_decoder_deps="libschroedinger"
1423 libschroedinger_encoder_deps="libschroedinger"
1424 libspeex_decoder_deps="libspeex"
1425 libtheora_encoder_deps="libtheora"
1426 libvo_aacenc_encoder_deps="libvo_aacenc"
1427 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1428 libvorbis_encoder_deps="libvorbis"
1429 libvpx_decoder_deps="libvpx"
1430 libvpx_encoder_deps="libvpx"
1431 libx264_encoder_deps="libx264"
1432 libxavs_encoder_deps="libxavs"
1433 libxvid_encoder_deps="libxvid"
1434
1435 # demuxers / muxers
1436 ac3_demuxer_select="ac3_parser"
1437 asf_stream_muxer_select="asf_muxer"
1438 avisynth_demuxer_deps="avisynth"
1439 dirac_demuxer_select="dirac_parser"
1440 eac3_demuxer_select="ac3_parser"
1441 flac_demuxer_select="flac_parser"
1442 ipod_muxer_select="mov_muxer"
1443 libnut_demuxer_deps="libnut"
1444 libnut_muxer_deps="libnut"
1445 matroska_audio_muxer_select="matroska_muxer"
1446 matroska_demuxer_suggest="zlib bzlib"
1447 mov_demuxer_suggest="zlib"
1448 mp3_demuxer_select="mpegaudio_parser"
1449 mp4_muxer_select="mov_muxer"
1450 mpegtsraw_demuxer_select="mpegts_demuxer"
1451 mxf_d10_muxer_select="mxf_muxer"
1452 ogg_demuxer_select="golomb"
1453 psp_muxer_select="mov_muxer"
1454 rtp_demuxer_select="sdp_demuxer"
1455 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1456 rtsp_demuxer_select="http_protocol rtpdec"
1457 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1458 sap_demuxer_select="sdp_demuxer"
1459 sap_muxer_select="rtp_muxer rtp_protocol"
1460 sdp_demuxer_select="rtpdec"
1461 spdif_muxer_select="aac_parser"
1462 tg2_muxer_select="mov_muxer"
1463 tgp_muxer_select="mov_muxer"
1464 w64_demuxer_deps="wav_demuxer"
1465
1466 # indevs / outdevs
1467 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1468 alsa_outdev_deps="alsa_asoundlib_h"
1469 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1470 dshow_indev_deps="IBaseFilter"
1471 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1472 dv1394_indev_deps="dv1394 dv_demuxer"
1473 fbdev_indev_deps="linux_fb_h"
1474 jack_indev_deps="jack_jack_h sem_timedwait"
1475 libdc1394_indev_deps="libdc1394"
1476 openal_indev_deps="openal"
1477 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1478 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1479 sdl_outdev_deps="sdl"
1480 sndio_indev_deps="sndio_h"
1481 sndio_outdev_deps="sndio_h"
1482 v4l_indev_deps="linux_videodev_h"
1483 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1484 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1485 vfwcap_indev_extralibs="-lavicap32"
1486 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1487 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1488
1489 # protocols
1490 gopher_protocol_deps="network"
1491 http_protocol_deps="network"
1492 http_protocol_select="tcp_protocol"
1493 mmsh_protocol_select="http_protocol"
1494 mmst_protocol_deps="network"
1495 rtmp_protocol_select="tcp_protocol"
1496 rtp_protocol_select="udp_protocol"
1497 tcp_protocol_deps="network"
1498 udp_protocol_deps="network"
1499
1500 # filters
1501 blackframe_filter_deps="gpl"
1502 boxblur_filter_deps="gpl"
1503 cropdetect_filter_deps="gpl"
1504 drawtext_filter_deps="libfreetype"
1505 frei0r_filter_deps="frei0r dlopen strtok_r"
1506 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1507 hqdn3d_filter_deps="gpl"
1508 movie_filter_deps="avcodec avformat"
1509 mp_filter_deps="gpl avcodec"
1510 negate_filter_deps="lut_filter"
1511 ocv_filter_deps="libopencv"
1512 scale_filter_deps="swscale"
1513 yadif_filter_deps="gpl"
1514
1515 # libraries
1516 avdevice_deps="avcodec avformat"
1517 avformat_deps="avcodec"
1518 postproc_deps="gpl"
1519
1520 # programs
1521 ffmpeg_deps="avcodec avformat swscale"
1522 ffmpeg_select="buffer_filter buffersink_filter"
1523 ffplay_deps="avcodec avformat swscale sdl"
1524 ffplay_select="buffersink_filter rdft"
1525 ffprobe_deps="avcodec avformat"
1526 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1527 ffserver_extralibs='$ldl'
1528
1529 doc_deps="texi2html"
1530
1531 # tests
1532
1533 test_deps(){
1534     suf1=$1
1535     suf2=$2
1536     shift 2
1537     for v; do
1538         dep=${v%=*}
1539         tests=${v#*=}
1540         for name in ${tests}; do
1541             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1542         done
1543     done
1544 }
1545
1546 test_deps _encoder _decoder                                             \
1547     adpcm_g726=g726                                                     \
1548     adpcm_ima_qt                                                        \
1549     adpcm_ima_wav                                                       \
1550     adpcm_ms                                                            \
1551     adpcm_swf                                                           \
1552     adpcm_yamaha=adpcm_yam                                              \
1553     alac                                                                \
1554     asv1                                                                \
1555     asv2                                                                \
1556     bmp                                                                 \
1557     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1558     dvvideo="dv dv50"                                                   \
1559     ffv1                                                                \
1560     flac                                                                \
1561     flashsv                                                             \
1562     flv                                                                 \
1563     gif                                                                 \
1564     h261                                                                \
1565     h263="h263 h263p"                                                   \
1566     huffyuv                                                             \
1567     jpegls                                                              \
1568     mjpeg="jpg mjpeg ljpeg"                                             \
1569     mp2                                                                 \
1570     mpeg1video="mpeg mpeg1b"                                            \
1571     mpeg2video="mpeg2 mpeg2thread"                                      \
1572     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1573     msmpeg4v3=msmpeg4                                                   \
1574     msmpeg4v2                                                           \
1575     pbm=pbmpipe                                                         \
1576     pcx                                                                 \
1577     pgm="pgm pgmpipe"                                                   \
1578     png                                                                 \
1579     ppm="ppm ppmpipe"                                                   \
1580     rawvideo="rgb yuv"                                                  \
1581     roq                                                                 \
1582     rv10                                                                \
1583     rv20                                                                \
1584     sgi                                                                 \
1585     snow="snow snowll"                                                  \
1586     svq1                                                                \
1587     targa=tga                                                           \
1588     tiff                                                                \
1589     wmav1                                                               \
1590     wmav2                                                               \
1591     wmv1                                                                \
1592     wmv2                                                                \
1593
1594 test_deps _muxer _demuxer                                               \
1595     aiff                                                                \
1596     pcm_alaw=alaw                                                       \
1597     asf                                                                 \
1598     au                                                                  \
1599     avi                                                                 \
1600     dv=dv_fmt                                                           \
1601     ffm                                                                 \
1602     flv=flv_fmt                                                         \
1603     gxf                                                                 \
1604     matroska=mkv                                                        \
1605     mmf                                                                 \
1606     mov                                                                 \
1607     pcm_mulaw=mulaw                                                     \
1608     mxf="mxf mxf_d10"                                                   \
1609     nut                                                                 \
1610     ogg                                                                 \
1611     rawvideo=pixfmt                                                     \
1612     rm                                                                  \
1613     swf                                                                 \
1614     mpegts=ts                                                           \
1615     voc                                                                 \
1616     wav                                                                 \
1617     yuv4mpegpipe=yuv4mpeg                                               \
1618
1619 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1620 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1621
1622 # default parameters
1623
1624 logfile="config.log"
1625
1626 # installation paths
1627 prefix_default="/usr/local"
1628 bindir_default='${prefix}/bin'
1629 datadir_default='${prefix}/share/ffmpeg'
1630 incdir_default='${prefix}/include'
1631 libdir_default='${prefix}/lib'
1632 mandir_default='${prefix}/share/man'
1633 shlibdir_default="$libdir_default"
1634
1635 # toolchain
1636 ar_default="ar"
1637 cc_default="gcc"
1638 cc_version=\"unknown\"
1639 host_cc_default="gcc"
1640 install="install"
1641 ln_s="ln -sf"
1642 nm_default="nm"
1643 objformat="elf"
1644 pkg_config_default=pkg-config
1645 ranlib="ranlib"
1646 strip_default="strip"
1647 yasmexe="yasm"
1648 nogas=":"
1649
1650 nm_opts='-g'
1651
1652 # machine
1653 arch_default=$(uname -m)
1654 cpu="generic"
1655
1656 # OS
1657 target_os_default=$(tolower $(uname -s))
1658 host_os=$target_os_default
1659
1660 # configurable options
1661 enable avcodec
1662 enable avdevice
1663 enable avfilter
1664 enable avformat
1665 enable avutil
1666 enable asm
1667 enable debug
1668 enable doc
1669 enable fastdiv
1670 enable ffmpeg
1671 enable ffplay
1672 enable ffprobe
1673 enable ffserver
1674 enable network
1675 enable optimizations
1676 enable postproc
1677 enable protocols
1678 enable static
1679 enable stripping
1680 enable swscale
1681 enable swscale_alpha
1682
1683 # build settings
1684 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1685 FFSERVERLDFLAGS=-Wl,-E
1686 LIBPREF="lib"
1687 LIBSUF=".a"
1688 FULLNAME='$(NAME)$(BUILDSUF)'
1689 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1690 SLIBPREF="lib"
1691 SLIBSUF=".so"
1692 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1693 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1694 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1695 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1696 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1697 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1698
1699 AS_O='-o $@'
1700 CC_O='-o $@'
1701
1702 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1703 host_libs='-lm'
1704
1705 target_path='$(CURDIR)'
1706
1707 # since the object filename is not given with the -MM flag, the compiler
1708 # is only able to print the basename, and we must add the path ourselves
1709 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1710 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1711
1712 # find source path
1713 if test -f configure; then
1714     source_path=.
1715 else
1716     source_path=$(cd $(dirname "$0"); pwd)
1717     echo "$source_path" | grep -q '[[:blank:]]' &&
1718         die "Out of tree builds are impossible with whitespace in source path."
1719     test -e "$source_path/config.h" &&
1720         die "Out of tree builds are impossible with config.h in source dir."
1721 fi
1722
1723 for v in "$@"; do
1724     r=${v#*=}
1725     l=${v%"$r"}
1726     r=$(sh_quote "$r")
1727     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1728 done
1729
1730 find_things(){
1731     thing=$1
1732     pattern=$2
1733     file=$source_path/$3
1734     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1735 }
1736
1737 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1738 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1739 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1740 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1741 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1742 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1743 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1744 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1745 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1746 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1747 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1748
1749 find_tests(){
1750     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1751 }
1752
1753 ACODEC_TESTS=$(find_tests acodec)
1754 VCODEC_TESTS=$(find_tests vsynth1)
1755 LAVF_TESTS=$(find_tests lavf)
1756 LAVFI_TESTS=$(find_tests lavfi)
1757 SEEK_TESTS=$(find_tests seek seek_)
1758
1759 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1760
1761 for n in $COMPONENT_LIST; do
1762     v=$(toupper ${n%s})_LIST
1763     eval enable \$$v
1764     eval ${n}_if_any="\$$v"
1765 done
1766
1767 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1768
1769 die_unknown(){
1770     echo "Unknown option \"$1\"."
1771     echo "See $0 --help for available options."
1772     exit 1
1773 }
1774
1775 show_list() {
1776     suffix=_$1
1777     shift
1778     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1779     exit 0
1780 }
1781
1782 for opt do
1783     optval="${opt#*=}"
1784     case "$opt" in
1785     --extra-ldflags=*) add_ldflags $optval
1786     ;;
1787     --extra-libs=*) add_extralibs $optval
1788     ;;
1789     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1790     ;;
1791     --enable-debug=*) debuglevel="$optval"
1792     ;;
1793     --disable-everything)
1794     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1795     ;;
1796     --enable-*=*|--disable-*=*)
1797     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1798     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1799     eval list=\$$(toupper $thing)_LIST
1800     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1801     $action $(filter "$name" $list)
1802     ;;
1803     --enable-?*|--disable-?*)
1804     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1805     if is_in $option $COMPONENT_LIST; then
1806         test $action = disable && action=unset
1807         eval $action \$$(toupper ${option%s})_LIST
1808     elif is_in $option $CMDLINE_SELECT; then
1809         $action $option
1810     else
1811         die_unknown $opt
1812     fi
1813     ;;
1814     --list-*)
1815         NAME="${opt#--list-}"
1816         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1817         NAME=${NAME%s}
1818         eval show_list $NAME \$$(toupper $NAME)_LIST
1819     ;;
1820     --help|-h) show_help
1821     ;;
1822     *)
1823     optname="${opt%%=*}"
1824     optname="${optname#--}"
1825     optname=$(echo "$optname" | sed 's/-/_/g')
1826     if is_in $optname $CMDLINE_SET; then
1827         eval $optname='$optval'
1828     elif is_in $optname $CMDLINE_APPEND; then
1829         append $optname "$optval"
1830     else
1831          die_unknown $opt
1832     fi
1833     ;;
1834     esac
1835 done
1836
1837 disabled logging && logfile=/dev/null
1838
1839 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1840 set >> $logfile
1841
1842 test -n "$cross_prefix" && enable cross_compile
1843
1844 if enabled cross_compile; then
1845     test -n "$arch" && test -n "$target_os" ||
1846         die "Must specify target arch and OS when cross-compiling"
1847 fi
1848
1849 set_default arch target_os
1850
1851 ar_default="${cross_prefix}${ar_default}"
1852 cc_default="${cross_prefix}${cc_default}"
1853 nm_default="${cross_prefix}${nm_default}"
1854 pkg_config_default="${cross_prefix}${pkg_config_default}"
1855 ranlib="${cross_prefix}${ranlib}"
1856 strip_default="${cross_prefix}${strip_default}"
1857
1858 sysinclude_default="${sysroot}/usr/include"
1859
1860 set_default cc nm pkg_config strip sysinclude
1861 enabled cross_compile || host_cc_default=$cc
1862 set_default host_cc
1863
1864 if ! $pkg_config --version >/dev/null 2>&1; then
1865     warn "$pkg_config not found, library detection may fail."
1866     pkg_config=false
1867 fi
1868
1869 exesuf() {
1870     case $1 in
1871         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1872     esac
1873 }
1874
1875 EXESUF=$(exesuf $target_os)
1876 HOSTEXESUF=$(exesuf $host_os)
1877
1878 # set temporary file name
1879 : ${TMPDIR:=$TEMPDIR}
1880 : ${TMPDIR:=$TMP}
1881 : ${TMPDIR:=/tmp}
1882
1883 if ! check_cmd mktemp -u XXXXXX; then
1884     # simple replacement for missing mktemp
1885     # NOT SAFE FOR GENERAL USE
1886     mktemp(){
1887         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1888     }
1889 fi
1890
1891 tmpfile(){
1892     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1893         (set -C; exec > $tmp) 2>/dev/null ||
1894         die "Unable to create temporary file in $TMPDIR."
1895     append TMPFILES $tmp
1896     eval $1=$tmp
1897 }
1898
1899 trap 'rm -f -- $TMPFILES' EXIT
1900
1901 tmpfile TMPC  .c
1902 tmpfile TMPE  $EXESUF
1903 tmpfile TMPH  .h
1904 tmpfile TMPO  .o
1905 tmpfile TMPS  .S
1906 tmpfile TMPV  .ver
1907 tmpfile TMPSH .sh
1908 tmpfile TMPASM .asm
1909
1910 unset -f mktemp
1911
1912 chmod +x $TMPE
1913
1914 # make sure we can execute files in $TMPDIR
1915 cat > $TMPSH 2>> $logfile <<EOF
1916 #! /bin/sh
1917 EOF
1918 chmod +x $TMPSH >> $logfile 2>&1
1919 if ! $TMPSH >> $logfile 2>&1; then
1920     cat <<EOF
1921 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1922 variable to another directory and make sure that it is not mounted noexec.
1923 EOF
1924     die "Sanity test failed."
1925 fi
1926
1927 filter_cflags=echo
1928 filter_cppflags=echo
1929 filter_asflags=echo
1930
1931 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1932     cc_type=llvm_gcc
1933     cc_version=__VERSION__
1934     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1935     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1936     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1937     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1938     speed_cflags='-O3'
1939     size_cflags='-Os'
1940 elif $cc -v 2>&1 | grep -qi ^gcc; then
1941     cc_type=gcc
1942     cc_version=__VERSION__
1943     gcc_version=$($cc --version | head -n1)
1944     gcc_basever=$($cc -dumpversion)
1945     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1946     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1947     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1948     if ! $cc -dumpversion | grep -q '^2\.'; then
1949         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1950         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1951     fi
1952     speed_cflags='-O3'
1953     size_cflags='-Os'
1954 elif $cc --version 2>/dev/null | grep -q Intel; then
1955     cc_type=icc
1956     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1957     cc_ident=$($cc --version | head -n1)
1958     icc_version=$($cc -dumpversion)
1959     CC_DEPFLAGS='-MMD'
1960     AS_DEPFLAGS='-MMD'
1961     speed_cflags='-O3'
1962     size_cflags='-Os'
1963     noopt_cflags='-O1'
1964 elif $cc -v 2>&1 | grep -q xlc; then
1965     cc_type=xlc
1966     cc_version="AV_STRINGIFY(__IBMC__)"
1967     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1968     speed_cflags='-O5'
1969     size_cflags='-O5 -qcompact'
1970 elif $cc -V 2>/dev/null | grep -q Compaq; then
1971     cc_type=ccc
1972     cc_version="AV_STRINGIFY(__DECC_VER)"
1973     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1974     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1975     debuglevel=3
1976     add_ldflags -Wl,-z,now # calls to libots crash without this
1977     speed_cflags='-fast'
1978     size_cflags='-O1'
1979 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1980     test -d "$sysroot" || die "No valid sysroot specified."
1981     cc_type=armcc
1982     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1983     cc_ident=$($cc --vsn | head -n1)
1984     armcc_conf="$PWD/armcc.conf"
1985     $cc --arm_linux_configure                 \
1986         --arm_linux_config_file="$armcc_conf" \
1987         --configure_sysroot="$sysroot"        \
1988         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1989         die "Error creating armcc configuration file."
1990     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1991     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1992     as_default="${cross_prefix}gcc"
1993     CC_DEPFLAGS='-MMD'
1994     AS_DEPFLAGS='-MMD'
1995     speed_cflags='-O3'
1996     size_cflags='-Os'
1997     filter_asflags="filter_out -W${armcc_opt}*"
1998 elif $cc -version 2>/dev/null | grep -q TMS470; then
1999     cc_type=tms470
2000     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2001     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2002     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2003     CC_O='-fr=$(@D)'
2004     as_default="${cross_prefix}gcc"
2005     ld_default="${cross_prefix}gcc"
2006     TMPO=$(basename $TMPC .c).o
2007     append TMPFILES $TMPO
2008     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2009     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2010     AS_DEPFLAGS='-MMD'
2011     speed_cflags='-O3 -mf=5'
2012     size_cflags='-O3 -mf=2'
2013     filter_cflags=tms470_flags
2014     tms470_flags(){
2015         for flag; do
2016             case $flag in
2017                 -march=*|-mcpu=*)
2018                     case "${flag#*=}" in
2019                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2020                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2021                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2022                         armv6*|arm11*)          echo -mv=6   ;;
2023                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2024                                                 echo -mv=5e  ;;
2025                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2026                     esac
2027                     ;;
2028                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2029                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2030                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2031                 -msoft-float)   echo --float_support=vfplib       ;;
2032                 -O[0-3]|-mf=*)  echo $flag                        ;;
2033                 -g)             echo -g -mn                       ;;
2034                 -pds=*)         echo $flag                        ;;
2035             esac
2036         done
2037     }
2038 elif $cc -v 2>&1 | grep -q clang; then
2039     cc_type=clang
2040     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2041         cc_version=__clang_version__ || cc_version=__VERSION__
2042     cc_ident=$($cc --version | head -n1)
2043     CC_DEPFLAGS='-MMD'
2044     AS_DEPFLAGS='-MMD'
2045     speed_cflags='-O3'
2046     size_cflags='-Os'
2047 elif $cc -V 2>&1 | grep -q Sun; then
2048     cc_type=suncc
2049     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2050     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2051     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2052     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2053     add_ldflags -xc99
2054     speed_cflags='-O5'
2055     size_cflags='-O5 -xspace'
2056     filter_cflags=suncc_flags
2057     suncc_flags(){
2058         for flag; do
2059             case $flag in
2060                 -march=*|-mcpu=*)
2061                     case "${flag#*=}" in
2062                         native)                   echo -xtarget=native       ;;
2063                         v9|niagara)               echo -xarch=sparc          ;;
2064                         ultrasparc)               echo -xarch=sparcvis       ;;
2065                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2066                         i586|pentium)             echo -xchip=pentium        ;;
2067                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2068                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2069                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2070                         pentium4*)          echo -xtarget=pentium4           ;;
2071                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2072                         *-sse3)             echo -xarch=sse3                 ;;
2073                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2074                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2075                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2076                         k8|opteron|athlon64|athlon-fx)
2077                                                   echo -xarch=sse2a          ;;
2078                         athlon*)                  echo -xarch=pentium_proa   ;;
2079                     esac
2080                     ;;
2081                 -std=c99)             echo -xc99              ;;
2082                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2083                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2084                 -W*,*)                echo $flag              ;;
2085                 -f*-*|-W*)                                    ;;
2086                 *)                    echo $flag              ;;
2087             esac
2088         done
2089     }
2090 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2091     cc_type=pathscale
2092     cc_version=__PATHSCALE__
2093     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2094     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2095     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2096     speed_cflags='-O2'
2097     size_cflags='-Os'
2098     filter_cflags='filter_out -Wdisabled-optimization'
2099 elif $cc -v 2>&1 | grep -q Open64; then
2100     cc_type=open64
2101     cc_version=__OPEN64__
2102     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2103     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2104     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2105     speed_cflags='-O2'
2106     size_cflags='-Os'
2107     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2108 fi
2109
2110 test -n "$cc_type" && enable $cc_type ||
2111     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2112
2113 : ${as_default:=$cc}
2114 : ${dep_cc_default:=$cc}
2115 : ${ld_default:=$cc}
2116 set_default ar as dep_cc ld
2117
2118 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2119 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2120
2121 add_cflags $extra_cflags
2122 add_asflags $extra_cflags
2123
2124 if test -n "$sysroot"; then
2125     case "$cc_type" in
2126         gcc|llvm_gcc|clang)
2127             add_cppflags --sysroot="$sysroot"
2128             add_ldflags --sysroot="$sysroot"
2129         ;;
2130         tms470)
2131             add_cppflags -I"$sysinclude"
2132             add_ldflags  --sysroot="$sysroot"
2133         ;;
2134     esac
2135 fi
2136
2137 if test "$cpu" = host; then
2138     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2139
2140     case "$cc_type" in
2141         gcc|llvm_gcc)
2142             check_native(){
2143                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2144                 sed -n "/cc1.*$1=/{
2145                             s/.*$1=\\([^ ]*\\).*/\\1/
2146                             p
2147                             q
2148                         }" $TMPE
2149             }
2150             cpu=$(check_native -march || check_native -mcpu)
2151         ;;
2152     esac
2153
2154     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2155 fi
2156
2157 # Deal with common $arch aliases
2158 case "$arch" in
2159     arm*)
2160         arch="arm"
2161     ;;
2162     mips|mipsel|IP*)
2163         arch="mips"
2164     ;;
2165     mips64*)
2166         arch="mips"
2167         subarch="mips64"
2168     ;;
2169     parisc|hppa)
2170         arch="parisc"
2171     ;;
2172     parisc64|hppa64)
2173         arch="parisc"
2174         subarch="parisc64"
2175     ;;
2176     "Power Macintosh"|ppc|powerpc)
2177         arch="ppc"
2178     ;;
2179     ppc64|powerpc64)
2180         arch="ppc"
2181         subarch="ppc64"
2182     ;;
2183     s390|s390x)
2184         arch="s390"
2185     ;;
2186     sh4|sh)
2187         arch="sh4"
2188     ;;
2189     sun4u|sparc64)
2190         arch="sparc"
2191         subarch="sparc64"
2192     ;;
2193     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2194         arch="x86"
2195     ;;
2196 esac
2197
2198 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2199 enable $arch
2200
2201 # Add processor-specific flags
2202 if test "$cpu" = generic; then
2203     : do nothing
2204 elif enabled ppc; then
2205
2206     case $(tolower $cpu) in
2207         601|ppc601|powerpc601)
2208             cpuflags="-mcpu=601"
2209             disable altivec
2210         ;;
2211         603*|ppc603*|powerpc603*)
2212             cpuflags="-mcpu=603"
2213             disable altivec
2214         ;;
2215         604*|ppc604*|powerpc604*)
2216             cpuflags="-mcpu=604"
2217             disable altivec
2218         ;;
2219         g3|75*|ppc75*|powerpc75*)
2220             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2221             disable altivec
2222         ;;
2223         g4|745*|ppc745*|powerpc745*)
2224             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2225         ;;
2226         74*|ppc74*|powerpc74*)
2227             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2228         ;;
2229         g5|970|ppc970|powerpc970|power4*)
2230             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2231         ;;
2232         cell)
2233             cpuflags="-mcpu=cell"
2234             enable ldbrx
2235         ;;
2236         e500v2)
2237             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2238             disable altivec
2239         ;;
2240         e500)
2241             cpuflags="-mcpu=8540 -mhard-float"
2242             disable altivec
2243         ;;
2244     esac
2245
2246 elif enabled x86; then
2247
2248     case $cpu in
2249         i[345]86|pentium)
2250             cpuflags="-march=$cpu"
2251             disable mmx
2252         ;;
2253         # targets that do NOT support conditional mov (cmov)
2254         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2255             cpuflags="-march=$cpu"
2256             disable cmov
2257         ;;
2258         # targets that do support conditional mov (cmov)
2259         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2260             cpuflags="-march=$cpu"
2261             enable cmov
2262             enable fast_cmov
2263         ;;
2264         # targets that do support conditional mov but on which it's slow
2265         pentium4|pentium4m|prescott|nocona)
2266             cpuflags="-march=$cpu"
2267             enable cmov
2268             disable fast_cmov
2269         ;;
2270     esac
2271
2272 elif enabled sparc; then
2273
2274     case $cpu in
2275         niagara)
2276             cpuflags="-mcpu=$cpu"
2277             disable vis
2278         ;;
2279         sparc64)
2280             cpuflags="-mcpu=v9"
2281         ;;
2282     esac
2283
2284 elif enabled arm; then
2285
2286     case $cpu in
2287         armv*)
2288             cpuflags="-march=$cpu"
2289             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2290         ;;
2291         *)
2292             cpuflags="-mcpu=$cpu"
2293             case $cpu in
2294                 cortex-a*)                               subarch=armv7a  ;;
2295                 cortex-r*)                               subarch=armv7r  ;;
2296                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2297                 arm11*)                                  subarch=armv6   ;;
2298                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2299                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2300             esac
2301         ;;
2302     esac
2303
2304 elif enabled alpha; then
2305
2306     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2307
2308 elif enabled bfin; then
2309
2310     cpuflags="-mcpu=$cpu"
2311
2312 elif enabled mips; then
2313
2314     cpuflags="-march=$cpu"
2315
2316 elif enabled avr32; then
2317
2318     case $cpu in
2319         ap7[02]0[0-2])
2320             subarch="avr32_ap"
2321             cpuflags="-mpart=$cpu"
2322         ;;
2323         ap)
2324             subarch="avr32_ap"
2325             cpuflags="-march=$cpu"
2326         ;;
2327         uc3[ab]*)
2328             subarch="avr32_uc"
2329             cpuflags="-mcpu=$cpu"
2330         ;;
2331         uc)
2332             subarch="avr32_uc"
2333             cpuflags="-march=$cpu"
2334         ;;
2335     esac
2336
2337 fi
2338
2339 add_cflags $cpuflags
2340 add_asflags $cpuflags
2341
2342 # compiler sanity check
2343 check_exec <<EOF
2344 int main(void){ return 0; }
2345 EOF
2346 if test "$?" != 0; then
2347     echo "$cc is unable to create an executable file."
2348     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2349         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2350         echo "Only do this if you know what cross compiling means."
2351     fi
2352     die "C compiler test failed."
2353 fi
2354
2355 add_cppflags -D_ISOC99_SOURCE
2356 check_cflags -std=c99
2357 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2358 #include <stdlib.h>
2359 EOF
2360 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2361 #include <stdlib.h>
2362 EOF
2363
2364 check_host_cflags -std=c99
2365 check_host_cflags -Wall
2366
2367 case "$arch" in
2368     alpha|ia64|mips|parisc|sparc)
2369         spic=$shared
2370     ;;
2371     x86)
2372         subarch="x86_32"
2373         check_cc <<EOF && subarch="x86_64"
2374         int test[(int)sizeof(char*) - 7];
2375 EOF
2376         if test "$subarch" = "x86_64"; then
2377             spic=$shared
2378         fi
2379     ;;
2380 esac
2381
2382 enable $subarch
2383 enabled spic && enable pic
2384
2385 # OS specific
2386 case $target_os in
2387     haiku)
2388         prefix_default="/boot/common"
2389         network_extralibs="-lnetwork"
2390         host_libs=
2391         ;;
2392     sunos)
2393         FFSERVERLDFLAGS=""
2394         SHFLAGS='-shared -Wl,-h,$$(@F)'
2395         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2396         network_extralibs="-lsocket -lnsl"
2397         add_cppflags -D__EXTENSIONS__
2398         nm_opts='-P -g'
2399         ;;
2400     netbsd)
2401         disable symver
2402         oss_indev_extralibs="-lossaudio"
2403         oss_outdev_extralibs="-lossaudio"
2404         ;;
2405     openbsd)
2406         enable malloc_aligned
2407         # On OpenBSD 4.5. the compiler does not use PIC unless
2408         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2409         # however the generated executable will not do anything
2410         # (simply quits with exit-code 1, no crash, no output).
2411         # Thus explicitly enable PIC here.
2412         enable pic
2413         disable symver
2414         SHFLAGS='-shared'
2415         oss_indev_extralibs="-lossaudio"
2416         oss_outdev_extralibs="-lossaudio"
2417         ;;
2418     dragonfly)
2419         enable malloc_aligned
2420         disable symver
2421         ;;
2422     freebsd)
2423         enable malloc_aligned
2424         ;;
2425     bsd/os)
2426         add_extralibs -lpoll -lgnugetopt
2427         strip="strip -d"
2428         ;;
2429     darwin)
2430         enable malloc_aligned
2431         gas="gas-preprocessor.pl $cc"
2432         enabled ppc && add_asflags -force_cpusubtype_ALL
2433         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2434         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2435         strip="${strip} -x"
2436         add_ldflags -Wl,-dynamic,-search_paths_first
2437         SLIBSUF=".dylib"
2438         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2439         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2440         FFSERVERLDFLAGS=-Wl,-bind_at_load
2441         objformat="macho"
2442         enabled x86_64 && objformat="macho64"
2443         enabled_any pic shared ||
2444             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2445         ;;
2446     mingw32*)
2447         if test $target_os = "mingw32ce"; then
2448             disable network
2449         else
2450             target_os=mingw32
2451         fi
2452         LIBTARGET=i386
2453         if enabled x86_64; then
2454             enable malloc_aligned
2455             LIBTARGET=x64
2456         elif enabled arm; then
2457             LIBTARGET=arm-wince
2458         fi
2459         shlibdir_default="$bindir_default"
2460         SLIBPREF=""
2461         SLIBSUF=".dll"
2462         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2463         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2464         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2465         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2466         SLIB_INSTALL_LINKS=
2467         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2468         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2469         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'
2470         objformat="win32"
2471         enable dos_paths
2472         check_cflags -fno-common
2473         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2474                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2475                 die "ERROR: MinGW runtime version must be >= 3.15."
2476         add_cppflags -U__STRICT_ANSI__
2477         ;;
2478     cygwin*)
2479         target_os=cygwin
2480         shlibdir_default="$bindir_default"
2481         SLIBPREF="cyg"
2482         SLIBSUF=".dll"
2483         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2484         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2485         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2486         objformat="win32"
2487         enable dos_paths
2488         check_cflags -fno-common
2489         add_cppflags -U__STRICT_ANSI__
2490         ;;
2491     *-dos|freedos|opendos)
2492         network_extralibs="-lsocket"
2493         objformat="coff"
2494         enable dos_paths
2495         add_cppflags -U__STRICT_ANSI__
2496         ;;
2497     linux)
2498         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2499         enable dv1394
2500         ;;
2501     irix*)
2502         target_os=irix
2503         ranlib="echo ignoring ranlib"
2504         ;;
2505     os/2*)
2506         strip="lxlite -CS"
2507         ln_s="cp -f"
2508         objformat="aout"
2509         add_cppflags -D_GNU_SOURCE
2510         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2511         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2512         FFSERVERLDFLAGS=""
2513         LIBSUF="_s.a"
2514         SLIBPREF=""
2515         SLIBSUF=".dll"
2516         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2517         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2518         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2519           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2520           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2521           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2522           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2523           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2524         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2525           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2526         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2527         enable dos_paths
2528         ;;
2529     gnu/kfreebsd)
2530         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2531         ;;
2532     gnu)
2533         ;;
2534     qnx)
2535         add_cppflags -D_QNX_SOURCE
2536         network_extralibs="-lsocket"
2537         ;;
2538     symbian)
2539         SLIBSUF=".dll"
2540         enable dos_paths
2541         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2542         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2543         add_ldflags -Wl,--target1-abs,--no-undefined \
2544                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2545                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2546         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2547                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2548                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2549         ;;
2550     none)
2551         ;;
2552     *)
2553         die "Unknown OS '$target_os'."
2554         ;;
2555 esac
2556
2557 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2558
2559 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2560
2561 set_default $PATHS_LIST
2562
2563 # we need to build at least one lib type
2564 if ! enabled_any static shared; then
2565     cat <<EOF
2566 At least one library type must be built.
2567 Specify --enable-static to build the static libraries or --enable-shared to
2568 build the shared libraries as well. To only build the shared libraries specify
2569 --disable-static in addition to --enable-shared.
2570 EOF
2571     exit 1;
2572 fi
2573
2574 die_license_disabled() {
2575     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2576 }
2577
2578 die_license_disabled gpl libx264
2579 die_license_disabled gpl libxavs
2580 die_license_disabled gpl libxvid
2581 die_license_disabled gpl x11grab
2582
2583 die_license_disabled nonfree libfaac
2584
2585 die_license_disabled version3 libopencore_amrnb
2586 die_license_disabled version3 libopencore_amrwb
2587 die_license_disabled version3 libvo_aacenc
2588 die_license_disabled version3 libvo_amrwbenc
2589
2590 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2591
2592 disabled optimizations || check_cflags -fomit-frame-pointer
2593
2594 enable_pic() {
2595     enable pic
2596     add_cppflags -DPIC
2597     add_cflags   -fPIC
2598     add_asflags  -fPIC
2599 }
2600
2601 enabled pic && enable_pic
2602
2603 check_cc <<EOF || die "Symbol mangling check failed."
2604 int ff_extern;
2605 EOF
2606 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2607 extern_prefix=${sym%%ff_extern*}
2608
2609 check_cc <<EOF && enable inline_asm
2610 void foo(void) { __asm__ volatile ("" ::); }
2611 EOF
2612
2613 _restrict=
2614 for restrict_keyword in restrict __restrict__ __restrict; do
2615     check_cc <<EOF && _restrict=$restrict_keyword && break
2616 void foo(char * $restrict_keyword p);
2617 EOF
2618 done
2619
2620 check_cc <<EOF && enable attribute_packed
2621 struct { int x; } __attribute__((packed)) x;
2622 EOF
2623
2624 check_cc <<EOF && enable attribute_may_alias
2625 union { int x; } __attribute__((may_alias)) x;
2626 EOF
2627
2628 check_cc <<EOF || die "endian test failed"
2629 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2630 EOF
2631 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2632
2633 if enabled alpha; then
2634
2635     check_cflags -mieee
2636
2637 elif enabled arm; then
2638
2639     enabled thumb && check_cflags -mthumb || check_cflags -marm
2640     nogas=die
2641
2642     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2643         enable vfp_args
2644     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2645         case "${cross_prefix:-$cc}" in
2646             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2647             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2648 __asm__ (".eabi_attribute 28, 1");
2649 int main(void) { return 0; }
2650 EOF
2651         esac
2652         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2653     fi
2654
2655     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2656     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2657     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2658     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2659     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2660     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2661     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2662
2663     enabled_all armv6t2 shared !pic && enable_pic
2664
2665 elif enabled mips; then
2666
2667     check_asm loongson '"dmult.g $1, $2, $3"'
2668     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2669
2670 elif enabled ppc; then
2671
2672     enable local_aligned_8 local_aligned_16
2673
2674     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2675     check_asm ibm_asm   '"add 0, 0, 0"'
2676     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2677     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2678
2679     # AltiVec flags: The FSF version of GCC differs from the Apple version
2680     if enabled altivec; then
2681         nogas=warn
2682         check_cflags -maltivec -mabi=altivec &&
2683         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2684         check_cflags -faltivec
2685
2686         # check if our compiler supports Motorola AltiVec C API
2687         check_cc <<EOF || disable altivec
2688 $inc_altivec_h
2689 int main(void) {
2690     vector signed int v1, v2, v3;
2691     v1 = vec_add(v2,v3);
2692     return 0;
2693 }
2694 EOF
2695
2696         # check if our compiler supports braces for vector declarations
2697         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2698 $inc_altivec_h
2699 int main (void) { (vector int) {1}; return 0; }
2700 EOF
2701     fi
2702
2703 elif enabled sparc; then
2704
2705     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2706         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2707
2708 elif enabled x86; then
2709
2710     enable local_aligned_8 local_aligned_16
2711
2712     # check whether EBP is available on x86
2713     # As 'i' is stored on the stack, this program will crash
2714     # if the base pointer is used to access it because the
2715     # base pointer is cleared in the inline assembly code.
2716     check_exec_crash <<EOF && enable ebp_available
2717     volatile int i=0;
2718     __asm__ volatile (
2719         "xorl %%ebp, %%ebp"
2720     ::: "%ebp");
2721     return i;
2722 EOF
2723
2724     # check whether EBX is available on x86
2725     check_asm ebx_available '""::"b"(0)' &&
2726         check_asm ebx_available '"":::"%ebx"'
2727
2728     # check whether xmm clobbers are supported
2729     check_asm xmm_clobbers '"":::"%xmm0"'
2730
2731     # check whether binutils is new enough to compile SSSE3/MMX2
2732     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2733     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2734
2735     check_asm bswap '"bswap %%eax" ::: "%eax"'
2736
2737     if ! disabled_any asm mmx yasm; then
2738         if check_cmd $yasmexe --version; then
2739             enabled x86_64 && yasm_extra="-m amd64"
2740             yasm_debug="-g dwarf2"
2741         elif check_cmd nasm -v; then
2742             yasmexe=nasm
2743             yasm_debug="-g -F dwarf"
2744             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2745         fi
2746
2747         YASMFLAGS="-f $objformat $yasm_extra"
2748         enabled pic               && append YASMFLAGS "-DPIC"
2749         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2750         case "$objformat" in
2751             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2752         esac
2753
2754         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2755             die "yasm not found, use --disable-yasm for a crippled build"
2756         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2757     fi
2758
2759     case "$cpu" in
2760         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2761             disable fast_clz
2762         ;;
2763     esac
2764
2765 fi
2766
2767 if enabled asm; then
2768     as=${gas:=$as}
2769     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2770         $nogas "GNU assembler not found, install gas-preprocessor"
2771 fi
2772
2773 check_ldflags -Wl,--as-needed
2774
2775 if check_func dlopen; then
2776     ldl=
2777 elif check_func dlopen -ldl; then
2778     ldl=-ldl
2779 fi
2780
2781 if enabled network; then
2782     check_type "sys/types.h sys/socket.h" socklen_t
2783     check_type netdb.h "struct addrinfo"
2784     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2785     check_type netinet/in.h "struct sockaddr_in6"
2786     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2787     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2788     # Prefer arpa/inet.h over winsock2
2789     if check_header arpa/inet.h ; then
2790         check_func closesocket
2791     elif check_header winsock2.h ; then
2792         check_func_headers winsock2.h closesocket -lws2 && \
2793             network_extralibs="-lws2" || \
2794         { check_func_headers winsock2.h closesocket -lws2_32 && \
2795             network_extralibs="-lws2_32"; }
2796         check_type ws2tcpip.h socklen_t
2797         check_type ws2tcpip.h "struct addrinfo"
2798         check_type ws2tcpip.h "struct ipv6_mreq"
2799         check_type ws2tcpip.h "struct sockaddr_in6"
2800         check_type ws2tcpip.h "struct sockaddr_storage"
2801         check_struct winsock2.h "struct sockaddr" sa_len
2802     else
2803         disable network
2804     fi
2805 fi
2806
2807 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2808 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2809
2810 check_func  fcntl
2811 check_func  fork
2812 check_func  getaddrinfo $network_extralibs
2813 check_func  gethrtime
2814 check_func  getrusage
2815 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2816 check_func  inet_aton $network_extralibs
2817 check_func  isatty
2818 check_func  localtime_r
2819 check_func  ${malloc_prefix}memalign            && enable memalign
2820 check_func  mkstemp
2821 check_func  mmap
2822 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2823 check_func  setrlimit
2824 check_func  strerror_r
2825 check_func  strptime
2826 check_func  strtok_r
2827 check_func_headers conio.h kbhit
2828 check_func_headers io.h setmode
2829 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2830 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2831 check_func_headers windows.h GetProcessTimes
2832 check_func_headers windows.h MapViewOfFile
2833 check_func_headers windows.h VirtualAlloc
2834
2835 check_header dlfcn.h
2836 check_header dxva2api.h
2837 check_header libcrystalhd/libcrystalhd_if.h
2838 check_header malloc.h
2839 check_header poll.h
2840 check_header sys/mman.h
2841 check_header sys/resource.h
2842 check_header sys/select.h
2843 check_header termios.h
2844 check_header vdpau/vdpau.h
2845 check_header vdpau/vdpau_x11.h
2846 check_header X11/extensions/XvMClib.h
2847
2848 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2849
2850 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2851 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2852
2853 # check for some common methods of building with pthread support
2854 # do this before the optional library checks as some of them require pthreads
2855 if ! disabled pthreads && ! enabled w32threads; then
2856     enable pthreads
2857     if check_func pthread_create; then
2858         :
2859     elif check_func pthread_create -pthread; then
2860         add_cflags -pthread
2861         add_extralibs -pthread
2862     elif check_func pthread_create -pthreads; then
2863         add_cflags -pthreads
2864         add_extralibs -pthreads
2865     elif check_func pthread_create -lpthreadGC2; then
2866         add_extralibs -lpthreadGC2
2867     elif ! check_lib pthread.h pthread_create -lpthread; then
2868         disable pthreads
2869     fi
2870 fi
2871
2872 for thread in $THREADS_LIST; do
2873     if enabled $thread; then
2874         test -n "$thread_type" &&
2875             die "ERROR: Only one thread type must be selected." ||
2876             thread_type="$thread"
2877     fi
2878 done
2879
2880 check_lib math.h sin -lm && LIBM="-lm"
2881 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2882 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2883
2884 check_mathfunc exp2
2885 check_mathfunc exp2f
2886 check_mathfunc llrint
2887 check_mathfunc llrintf
2888 check_mathfunc log2
2889 check_mathfunc log2f
2890 check_mathfunc lrint
2891 check_mathfunc lrintf
2892 check_mathfunc round
2893 check_mathfunc roundf
2894 check_mathfunc trunc
2895 check_mathfunc truncf
2896
2897 # these are off by default, so fail if requested and not available
2898 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2899 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2900 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2901 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2902 enabled libdirac   && require_pkg_config dirac                          \
2903     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2904     "dirac_decoder_init dirac_encoder_init"
2905 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2906 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2907 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2908 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2909 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2910 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2911 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2912 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2913 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2914 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2915 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2916 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2917 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2918 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2919 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2920 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2921 enabled libvpx     && {
2922     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2923                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2924     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2925                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2926 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2927                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2928                         die "ERROR: libx264 version must be >= 0.115."; }
2929 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2930 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2931 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2932                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2933                         die "ERROR: openal not found"; } &&
2934                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2935                         die "ERROR: openal version must be 1.1 or compatible"; }
2936 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2937
2938 SDL_CONFIG="${cross_prefix}sdl-config"
2939 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2940     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2941     enable sdl &&
2942     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2943 else
2944   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2945     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2946     sdl_libs=$("${SDL_CONFIG}" --libs)
2947     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2948     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2949     enable sdl &&
2950     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2951   fi
2952 fi
2953 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2954
2955 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2956
2957 check_header linux/fb.h
2958 check_header linux/videodev.h
2959 check_header linux/videodev2.h
2960 check_header sys/videoio.h
2961
2962 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2963 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2964 # w32api 3.12 had it defined wrong
2965 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2966
2967 check_type "dshow.h" IBaseFilter
2968
2969 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2970 { check_header dev/bktr/ioctl_meteor.h &&
2971   check_header dev/bktr/ioctl_bt848.h; } ||
2972 { check_header machine/ioctl_meteor.h &&
2973   check_header machine/ioctl_bt848.h; } ||
2974 { check_header dev/video/meteor/ioctl_meteor.h &&
2975   check_header dev/video/bktr/ioctl_bt848.h; } ||
2976 check_header dev/ic/bt8xx.h
2977
2978 check_header sndio.h
2979 if check_struct sys/soundcard.h audio_buf_info bytes; then
2980     enable_safe sys/soundcard.h
2981 else
2982     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2983     #include <sys/soundcard.h>
2984     audio_buf_info abc;
2985 EOF
2986 fi
2987 check_header soundcard.h
2988
2989 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2990
2991 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
2992
2993 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2994
2995 enabled x11grab                         &&
2996 check_header X11/Xlib.h                 &&
2997 check_header X11/extensions/XShm.h      &&
2998 check_header X11/extensions/Xfixes.h    &&
2999 check_func XOpenDisplay -lX11           &&
3000 check_func XShmCreateImage -lX11 -lXext &&
3001 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3002
3003 if ! disabled vaapi; then
3004     check_lib va/va.h vaInitialize -lva && {
3005         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3006         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3007     } || disable vaapi
3008 fi
3009
3010 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3011 check_cpp_condition \
3012     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3013     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3014       disable vdpau; }
3015 fi
3016
3017 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3018
3019 # add some useful compiler flags if supported
3020 check_cflags -Wdeclaration-after-statement
3021 check_cflags -Wall
3022 check_cflags -Wno-parentheses
3023 check_cflags -Wno-switch
3024 check_cflags -Wno-format-zero-length
3025 check_cflags -Wdisabled-optimization
3026 check_cflags -Wpointer-arith
3027 check_cflags -Wredundant-decls
3028 check_cflags -Wno-pointer-sign
3029 check_cflags -Wcast-qual
3030 check_cflags -Wwrite-strings
3031 check_cflags -Wtype-limits
3032 check_cflags -Wundef
3033 check_cflags -Wmissing-prototypes
3034 check_cflags -Wno-pointer-to-int-cast
3035 enabled extra_warnings && check_cflags -Winline
3036
3037 # add some linker flags
3038 check_ldflags -Wl,--warn-common
3039 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3040 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3041
3042 echo "X{};" > $TMPV
3043 if test_ldflags -Wl,--version-script,$TMPV; then
3044     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3045     check_cc <<EOF && enable symver_asm_label
3046 void ff_foo(void) __asm__ ("av_foo@VERSION");
3047 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3048 EOF
3049     check_cc <<EOF && enable symver_gnu_asm
3050 __asm__(".symver ff_foo,av_foo@VERSION");
3051 void ff_foo(void) {}
3052 EOF
3053 fi
3054
3055 if [ -n "$optflags" ]; then
3056     add_cflags $optflags
3057 elif enabled small; then
3058     add_cflags $size_cflags
3059 elif enabled optimizations; then
3060     add_cflags $speed_cflags
3061 else
3062     add_cflags $noopt_cflags
3063 fi
3064 check_cflags -fno-math-errno
3065 check_cflags -fno-signed-zeros
3066
3067 if enabled icc; then
3068     # Just warnings, no remarks
3069     check_cflags -w1
3070     # -wd: Disable following warnings
3071     # 144, 167, 556: -Wno-pointer-sign
3072     # 1292: attribute "foo" ignored
3073     # 10006: ignoring unknown option -fno-signed-zeros
3074     # 10148: ignoring unknown option -Wno-parentheses
3075     # 10156: ignoring option '-W'; no argument required
3076     check_cflags -wd144,167,556,1292,10006,10148,10156
3077     # 11030: Warning unknown option --as-needed
3078     # 10156: ignoring option '-export'; no argument required
3079     check_ldflags -wd10156,11030
3080     # Allow to compile with optimizations
3081     check_ldflags -march=$cpu
3082     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3083     enable ebp_available
3084     if enabled x86_32; then
3085         test ${icc_version%%.*} -ge 11 && \
3086             check_cflags -falign-stack=maintain-16-byte || \
3087             disable aligned_stack
3088     fi
3089 elif enabled ccc; then
3090     # disable some annoying warnings
3091     add_cflags -msg_disable cvtu32to64
3092     add_cflags -msg_disable embedcomment
3093     add_cflags -msg_disable needconstext
3094     add_cflags -msg_disable nomainieee
3095     add_cflags -msg_disable ptrmismatch1
3096     add_cflags -msg_disable unreachcode
3097 elif enabled gcc; then
3098     check_cflags -fno-tree-vectorize
3099     check_cflags -Werror=implicit-function-declaration
3100     check_cflags -Werror=missing-prototypes
3101 elif enabled llvm_gcc; then
3102     check_cflags -mllvm -stack-alignment=16
3103 elif enabled clang; then
3104     check_cflags -mllvm -stack-alignment=16
3105     check_cflags -Qunused-arguments
3106 elif enabled armcc; then
3107     # 2523: use of inline assembler is deprecated
3108     add_cflags -W${armcc_opt},--diag_suppress=2523
3109     add_cflags -W${armcc_opt},--diag_suppress=1207
3110     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3111     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3112     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3113     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3114 elif enabled tms470; then
3115     add_cflags -pds=824 -pds=837
3116 elif enabled pathscale; then
3117     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3118 fi
3119
3120 enabled_any $THREADS_LIST      && enable threads
3121
3122 check_deps $CONFIG_LIST       \
3123            $CONFIG_EXTRA      \
3124            $HAVE_LIST         \
3125            $DECODER_LIST      \
3126            $ENCODER_LIST      \
3127            $HWACCEL_LIST      \
3128            $PARSER_LIST       \
3129            $BSF_LIST          \
3130            $DEMUXER_LIST      \
3131            $MUXER_LIST        \
3132            $FILTER_LIST       \
3133            $INDEV_LIST        \
3134            $OUTDEV_LIST       \
3135            $PROTOCOL_LIST     \
3136            $ACODEC_TESTS      \
3137            $VCODEC_TESTS      \
3138            $LAVF_TESTS        \
3139            $LAVFI_TESTS       \
3140            $SEEK_TESTS        \
3141
3142 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3143
3144 if test $target_os == "haiku"; then
3145     disable memalign
3146     disable posix_memalign
3147 fi
3148
3149 ! enabled_any memalign posix_memalign malloc_aligned &&
3150     enabled_any $need_memalign && enable memalign_hack
3151
3152 echo "install prefix            $prefix"
3153 echo "source path               $source_path"
3154 echo "C compiler                $cc"
3155 echo "ARCH                      $arch ($cpu)"
3156 if test "$build_suffix" != ""; then
3157     echo "build suffix              $build_suffix"
3158 fi
3159 if test "$extra_version" != ""; then
3160     echo "version string suffix     $extra_version"
3161 fi
3162 echo "big-endian                ${bigendian-no}"
3163 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3164 if enabled x86; then
3165     echo "${yasmexe}                      ${yasm-no}"
3166     echo "MMX enabled               ${mmx-no}"
3167     echo "MMX2 enabled              ${mmx2-no}"
3168     echo "3DNow! enabled            ${amd3dnow-no}"
3169     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3170     echo "SSE enabled               ${sse-no}"
3171     echo "SSSE3 enabled             ${ssse3-no}"
3172     echo "AVX enabled               ${avx-no}"
3173     echo "CMOV enabled              ${cmov-no}"
3174     echo "CMOV is fast              ${fast_cmov-no}"
3175     echo "EBX available             ${ebx_available-no}"
3176     echo "EBP available             ${ebp_available-no}"
3177 fi
3178 if enabled arm; then
3179     echo "ARMv5TE enabled           ${armv5te-no}"
3180     echo "ARMv6 enabled             ${armv6-no}"
3181     echo "ARMv6T2 enabled           ${armv6t2-no}"
3182     echo "ARM VFP enabled           ${armvfp-no}"
3183     echo "IWMMXT enabled            ${iwmmxt-no}"
3184     echo "NEON enabled              ${neon-no}"
3185 fi
3186 if enabled mips; then
3187     echo "MMI enabled               ${mmi-no}"
3188 fi
3189 if enabled ppc; then
3190     echo "AltiVec enabled           ${altivec-no}"
3191     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3192     echo "dcbzl available           ${dcbzl-no}"
3193 fi
3194 if enabled sparc; then
3195     echo "VIS enabled               ${vis-no}"
3196 fi
3197 echo "debug symbols             ${debug-no}"
3198 echo "strip symbols             ${stripping-no}"
3199 echo "optimize for size         ${small-no}"
3200 echo "optimizations             ${optimizations-no}"
3201 echo "static                    ${static-no}"
3202 echo "shared                    ${shared-no}"
3203 echo "postprocessing support    ${postproc-no}"
3204 echo "new filter support        ${avfilter-no}"
3205 echo "network support           ${network-no}"
3206 echo "threading support         ${thread_type-no}"
3207 echo "SDL support               ${sdl-no}"
3208 echo "Sun medialib support      ${mlib-no}"
3209 echo "libdxva2 enabled          ${dxva2-no}"
3210 echo "libva enabled             ${vaapi-no}"
3211 echo "libvdpau enabled          ${vdpau-no}"
3212 echo "AVISynth enabled          ${avisynth-no}"
3213 echo "libcelt enabled           ${libcelt-no}"
3214 echo "frei0r enabled            ${frei0r-no}"
3215 echo "libdc1394 support         ${libdc1394-no}"
3216 echo "libdirac enabled          ${libdirac-no}"
3217 echo "libfaac enabled           ${libfaac-no}"
3218 echo "libgsm enabled            ${libgsm-no}"
3219 echo "libmp3lame enabled        ${libmp3lame-no}"
3220 echo "libnut enabled            ${libnut-no}"
3221 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3222 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3223 echo "libopencv support         ${libopencv-no}"
3224 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3225 echo "librtmp enabled           ${librtmp-no}"
3226 echo "libschroedinger enabled   ${libschroedinger-no}"
3227 echo "libspeex enabled          ${libspeex-no}"
3228 echo "libtheora enabled         ${libtheora-no}"
3229 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3230 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3231 echo "libvorbis enabled         ${libvorbis-no}"
3232 echo "libvpx enabled            ${libvpx-no}"
3233 echo "libx264 enabled           ${libx264-no}"
3234 echo "libxavs enabled           ${libxavs-no}"
3235 echo "libxvid enabled           ${libxvid-no}"
3236 echo "openal enabled            ${openal-no}"
3237 echo "zlib enabled              ${zlib-no}"
3238 echo "bzlib enabled             ${bzlib-no}"
3239 echo
3240
3241 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3242     echo "Enabled ${type}s:"
3243     eval list=\$$(toupper $type)_LIST
3244     print_enabled '_*' $list | sort | pr -r -3 -t
3245     echo
3246 done
3247
3248 license="LGPL version 2.1 or later"
3249 if enabled nonfree; then
3250     license="nonfree and unredistributable"
3251 elif enabled gplv3; then
3252     license="GPL version 3 or later"
3253 elif enabled lgplv3; then
3254     license="LGPL version 3 or later"
3255 elif enabled gpl; then
3256     license="GPL version 2 or later"
3257 fi
3258
3259 echo "License: $license"
3260
3261 echo "Creating config.mak and config.h..."
3262
3263 test -e Makefile || $ln_s "$source_path/Makefile" .
3264
3265 enabled stripping || strip="echo skipping strip"
3266
3267 config_files="$TMPH config.mak"
3268
3269 cat > config.mak <<EOF
3270 # Automatically generated by configure - do not modify!
3271 ifndef FFMPEG_CONFIG_MAK
3272 FFMPEG_CONFIG_MAK=1
3273 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3274 prefix=$prefix
3275 LIBDIR=\$(DESTDIR)$libdir
3276 SHLIBDIR=\$(DESTDIR)$shlibdir
3277 INCDIR=\$(DESTDIR)$incdir
3278 BINDIR=\$(DESTDIR)$bindir
3279 DATADIR=\$(DESTDIR)$datadir
3280 MANDIR=\$(DESTDIR)$mandir
3281 SRC_PATH=$source_path
3282 ifndef MAIN_MAKEFILE
3283 SRC_PATH:=\$(SRC_PATH:.%=..%)
3284 endif
3285 CC_IDENT=$cc_ident
3286 ARCH=$arch
3287 CC=$cc
3288 AS=$as
3289 LD=$ld
3290 DEPCC=$dep_cc
3291 YASM=$yasmexe
3292 YASMDEP=$yasmexe
3293 AR=$ar
3294 RANLIB=$ranlib
3295 CP=cp -p
3296 LN_S=$ln_s
3297 STRIP=$strip
3298 CPPFLAGS=$CPPFLAGS
3299 CFLAGS=$CFLAGS
3300 ASFLAGS=$ASFLAGS
3301 AS_O=$CC_O
3302 CC_O=$CC_O
3303 LDFLAGS=$LDFLAGS
3304 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3305 SHFLAGS=$SHFLAGS
3306 YASMFLAGS=$YASMFLAGS
3307 BUILDSUF=$build_suffix
3308 FULLNAME=$FULLNAME
3309 LIBPREF=$LIBPREF
3310 LIBSUF=$LIBSUF
3311 LIBNAME=$LIBNAME
3312 SLIBPREF=$SLIBPREF
3313 SLIBSUF=$SLIBSUF
3314 EXESUF=$EXESUF
3315 EXTRA_VERSION=$extra_version
3316 DEPFLAGS=$DEPFLAGS
3317 CCDEP=$CCDEP
3318 ASDEP=$ASDEP
3319 CC_DEPFLAGS=$CC_DEPFLAGS
3320 AS_DEPFLAGS=$AS_DEPFLAGS
3321 HOSTCC=$host_cc
3322 HOSTCFLAGS=$host_cflags
3323 HOSTEXESUF=$HOSTEXESUF
3324 HOSTLDFLAGS=$host_ldflags
3325 HOSTLIBS=$host_libs
3326 TARGET_EXEC=$target_exec
3327 TARGET_PATH=$target_path
3328 SDL_LIBS=$sdl_libs
3329 SDL_CFLAGS=$sdl_cflags
3330 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3331 EXTRALIBS=$extralibs
3332 INSTALL=$install
3333 LIBTARGET=${LIBTARGET}
3334 SLIBNAME=${SLIBNAME}
3335 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3336 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3337 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3338 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3339 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3340 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3341 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3342 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3343 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3344 EOF
3345
3346 get_version(){
3347     name=$1
3348     file=$source_path/$2
3349     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3350     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3351     lcname=$(tolower $name)
3352     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3353     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3354 }
3355
3356 get_version LIBSWSCALE  libswscale/swscale.h
3357 get_version LIBPOSTPROC libpostproc/postprocess.h
3358 get_version LIBAVCODEC  libavcodec/version.h
3359 get_version LIBAVDEVICE libavdevice/avdevice.h
3360 get_version LIBAVFORMAT libavformat/version.h
3361 get_version LIBAVUTIL   libavutil/avutil.h
3362 get_version LIBAVFILTER libavfilter/avfilter.h
3363
3364 cat > $TMPH <<EOF
3365 /* Automatically generated by configure - do not modify! */
3366 #ifndef FFMPEG_CONFIG_H
3367 #define FFMPEG_CONFIG_H
3368 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3369 #define FFMPEG_LICENSE "$(c_escape $license)"
3370 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3371 #define CC_TYPE "$cc_type"
3372 #define CC_VERSION $cc_version
3373 #define restrict $_restrict
3374 #define EXTERN_PREFIX "${extern_prefix}"
3375 #define EXTERN_ASM ${extern_prefix}
3376 #define SLIBSUF "$SLIBSUF"
3377 EOF
3378
3379 test -n "$malloc_prefix" &&
3380     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3381
3382 if enabled small || disabled optimizations; then
3383     echo "#undef  av_always_inline"  >> $TMPH
3384     if enabled small; then
3385         echo "#define av_always_inline inline"  >> $TMPH
3386     else
3387         echo "#define av_always_inline av_unused"  >> $TMPH
3388     fi
3389 fi
3390
3391 if enabled yasm; then
3392     append config_files $TMPASM
3393     printf '' >$TMPASM
3394 fi
3395
3396 print_config ARCH_   "$config_files" $ARCH_LIST
3397 print_config HAVE_   "$config_files" $HAVE_LIST
3398 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3399                                      $CONFIG_EXTRA      \
3400                                      $DECODER_LIST      \
3401                                      $ENCODER_LIST      \
3402                                      $HWACCEL_LIST      \
3403                                      $PARSER_LIST       \
3404                                      $BSF_LIST          \
3405                                      $DEMUXER_LIST      \
3406                                      $MUXER_LIST        \
3407                                      $FILTER_LIST       \
3408                                      $PROTOCOL_LIST     \
3409                                      $INDEV_LIST        \
3410                                      $OUTDEV_LIST       \
3411
3412 cat >>config.mak <<EOF
3413 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3414 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3415 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3416 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3417 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3418 EOF
3419
3420 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3421 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3422
3423 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3424 cp_if_changed $TMPH config.h
3425 touch .config
3426
3427 enabled yasm && cp_if_changed $TMPASM config.asm
3428
3429 cat > $TMPH <<EOF
3430 /* Generated by ffconf */
3431 #ifndef AVUTIL_AVCONFIG_H
3432 #define AVUTIL_AVCONFIG_H
3433 EOF
3434
3435 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3436
3437 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3438
3439 cp_if_changed $TMPH libavutil/avconfig.h
3440
3441 test -n "$WARNINGS" && printf "\n$WARNINGS"
3442
3443 # build pkg-config files
3444
3445 pkgconfig_generate(){
3446 name=$1
3447 shortname=${name#lib}${build_suffix}
3448 comment=$2
3449 version=$3
3450 libs=$4
3451 requires=$5
3452 enabled ${name#lib} || return 0
3453 mkdir -p $name
3454 cat <<EOF > $name/$name.pc
3455 prefix=$prefix
3456 exec_prefix=\${prefix}
3457 libdir=$libdir
3458 includedir=$incdir
3459
3460 Name: $name
3461 Description: $comment
3462 Version: $version
3463 Requires: $(enabled shared || echo $requires)
3464 Requires.private: $(enabled shared && echo $requires)
3465 Conflicts:
3466 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3467 Libs.private: $(enabled shared && echo $libs)
3468 Cflags: -I\${includedir}
3469 EOF
3470 cat <<EOF > $name/$name-uninstalled.pc
3471 prefix=
3472 exec_prefix=
3473 libdir=\${pcfiledir}
3474 includedir=${source_path}
3475
3476 Name: $name
3477 Description: $comment
3478 Version: $version
3479 Requires: $requires
3480 Conflicts:
3481 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3482 Cflags: -I\${includedir}
3483 EOF
3484 }
3485
3486 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3487 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3488 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3489 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3490 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3491 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3492 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"