Match VA-API / VDPAU with zlib / bzlib build system documentation.
[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     strtok_r
1114     struct_addrinfo
1115     struct_ipv6_mreq
1116     struct_sockaddr_in6
1117     struct_sockaddr_sa_len
1118     struct_sockaddr_storage
1119     symver
1120     symver_gnu_asm
1121     symver_asm_label
1122     sys_mman_h
1123     sys_resource_h
1124     sys_select_h
1125     sys_soundcard_h
1126     sys_videoio_h
1127     termios_h
1128     threads
1129     trunc
1130     truncf
1131     vfp_args
1132     VirtualAlloc
1133     winsock2_h
1134     xform_asm
1135     xmm_clobbers
1136     yasm
1137 "
1138
1139 # options emitted with CONFIG_ prefix but not available on command line
1140 CONFIG_EXTRA="
1141     avutil
1142     gplv3
1143     lgplv3
1144 "
1145
1146 CMDLINE_SELECT="
1147     $ARCH_EXT_LIST
1148     $CONFIG_LIST
1149     $THREADS_LIST
1150     asm
1151     cross_compile
1152     debug
1153     extra_warnings
1154     logging
1155     optimizations
1156     stripping
1157     symver
1158     yasm
1159 "
1160
1161 PATHS_LIST='
1162     bindir
1163     datadir
1164     incdir
1165     libdir
1166     mandir
1167     prefix
1168     shlibdir
1169 '
1170
1171 CMDLINE_SET="
1172     $PATHS_LIST
1173     ar
1174     arch
1175     as
1176     build_suffix
1177     cc
1178     cpu
1179     cross_prefix
1180     dep_cc
1181     extra_version
1182     host_cc
1183     host_cflags
1184     host_ldflags
1185     host_libs
1186     host_os
1187     install
1188     ld
1189     logfile
1190     malloc_prefix
1191     nm
1192     optflags
1193     pkg_config
1194     samples
1195     strip
1196     sysinclude
1197     sysroot
1198     target_exec
1199     target_os
1200     target_path
1201 "
1202
1203 CMDLINE_APPEND="
1204     extra_cflags
1205 "
1206
1207 # code dependency declarations
1208
1209 # architecture extensions
1210
1211 armv5te_deps="arm"
1212 armv6_deps="arm"
1213 armv6t2_deps="arm"
1214 armvfp_deps="arm"
1215 iwmmxt_deps="arm"
1216 neon_deps="arm"
1217 vfpv3_deps="armvfp"
1218
1219 mmi_deps="mips"
1220
1221 altivec_deps="ppc"
1222 ppc4xx_deps="ppc"
1223
1224 vis_deps="sparc"
1225
1226 x86_64_suggest="cmov fast_cmov"
1227 amd3dnow_deps="mmx"
1228 amd3dnowext_deps="amd3dnow"
1229 mmx_deps="x86"
1230 mmx2_deps="mmx"
1231 sse_deps="mmx"
1232 ssse3_deps="sse"
1233 avx_deps="ssse3"
1234
1235 aligned_stack_if_any="ppc x86"
1236 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1237 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1238 fast_unaligned_if_any="armv6 ppc x86"
1239
1240 need_memalign="altivec neon sse"
1241 inline_asm_deps="!tms470"
1242
1243 symver_if_any="symver_asm_label symver_gnu_asm"
1244
1245 # subsystems
1246 dct_select="rdft"
1247 mdct_select="fft"
1248 rdft_select="fft"
1249 mpegaudiodsp_select="dct"
1250
1251 # decoders / encoders / hardware accelerators
1252 aac_decoder_select="mdct sinewin"
1253 aac_encoder_select="mdct sinewin"
1254 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1255 ac3_decoder_select="mdct ac3dsp ac3_parser"
1256 ac3_encoder_select="mdct ac3dsp"
1257 ac3_fixed_encoder_select="mdct ac3dsp"
1258 alac_encoder_select="lpc"
1259 amrnb_decoder_select="lsp"
1260 amrwb_decoder_select="lsp"
1261 atrac1_decoder_select="mdct sinewin"
1262 atrac3_decoder_select="mdct"
1263 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1264 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1265 cavs_decoder_select="golomb"
1266 cook_decoder_select="mdct sinewin"
1267 cscd_decoder_suggest="zlib"
1268 dca_decoder_select="mdct"
1269 dnxhd_encoder_select="aandct"
1270 dxa_decoder_select="zlib"
1271 eac3_decoder_select="ac3_decoder"
1272 eac3_encoder_select="mdct ac3dsp"
1273 eamad_decoder_select="aandct"
1274 eatgq_decoder_select="aandct"
1275 eatqi_decoder_select="aandct"
1276 ffv1_decoder_select="golomb"
1277 flac_decoder_select="golomb"
1278 flac_encoder_select="golomb lpc"
1279 flashsv_decoder_select="zlib"
1280 flashsv_encoder_select="zlib"
1281 flashsv2_encoder_select="zlib"
1282 flv_decoder_select="h263_decoder"
1283 flv_encoder_select="h263_encoder"
1284 fraps_decoder_select="huffman"
1285 h261_encoder_select="aandct"
1286 h263_decoder_select="h263_parser"
1287 h263_encoder_select="aandct"
1288 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1289 h263i_decoder_select="h263_decoder"
1290 h263p_encoder_select="h263_encoder"
1291 h264_decoder_select="golomb h264dsp h264pred"
1292 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1293 h264_dxva2_hwaccel_deps="dxva2api_h"
1294 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1295 h264_vaapi_hwaccel_select="vaapi"
1296 h264_vdpau_decoder_select="vdpau h264_decoder"
1297 imc_decoder_select="fft mdct sinewin"
1298 jpegls_decoder_select="golomb"
1299 jpegls_encoder_select="golomb"
1300 ljpeg_encoder_select="aandct"
1301 loco_decoder_select="golomb"
1302 mjpeg_encoder_select="aandct"
1303 mlp_decoder_select="mlp_parser"
1304 mp1_decoder_select="mpegaudiodsp"
1305 mp2_decoder_select="mpegaudiodsp"
1306 mp3adu_decoder_select="mpegaudiodsp"
1307 mp3_decoder_select="mpegaudiodsp"
1308 mp3on4_decoder_select="mpegaudiodsp"
1309 mp1float_decoder_select="mpegaudiodsp"
1310 mp2float_decoder_select="mpegaudiodsp"
1311 mp3adufloat_decoder_select="mpegaudiodsp"
1312 mp3float_decoder_select="mpegaudiodsp"
1313 mp3on4float_decoder_select="mpegaudiodsp"
1314 mpeg1video_encoder_select="aandct"
1315 mpeg2video_encoder_select="aandct"
1316 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1317 mpeg4_encoder_select="h263_encoder"
1318 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1319 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1320 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1321 mpeg2_crystalhd_decoder_select="crystalhd"
1322 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1323 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1324 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1325 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1326 mpeg4_crystalhd_decoder_select="crystalhd"
1327 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1328 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1329 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1330 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1331 msmpeg4_crystalhd_decoder_select="crystalhd"
1332 msmpeg4v1_decoder_select="h263_decoder"
1333 msmpeg4v1_encoder_select="h263_encoder"
1334 msmpeg4v2_decoder_select="h263_decoder"
1335 msmpeg4v2_encoder_select="h263_encoder"
1336 msmpeg4v3_decoder_select="h263_decoder"
1337 msmpeg4v3_encoder_select="h263_encoder"
1338 nellymoser_decoder_select="mdct sinewin"
1339 nellymoser_encoder_select="mdct sinewin"
1340 png_decoder_select="zlib"
1341 png_encoder_select="zlib"
1342 qcelp_decoder_select="lsp"
1343 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1344 ra_144_encoder_select="lpc"
1345 rv10_decoder_select="h263_decoder"
1346 rv10_encoder_select="h263_encoder"
1347 rv20_decoder_select="h263_decoder"
1348 rv20_encoder_select="h263_encoder"
1349 rv30_decoder_select="golomb h264pred"
1350 rv40_decoder_select="golomb h264pred"
1351 shorten_decoder_select="golomb"
1352 sipr_decoder_select="lsp"
1353 snow_decoder_select="dwt"
1354 snow_encoder_select="aandct dwt"
1355 sonic_decoder_select="golomb"
1356 sonic_encoder_select="golomb"
1357 sonic_ls_encoder_select="golomb"
1358 svq1_encoder_select="aandct"
1359 svq3_decoder_select="golomb h264dsp h264pred"
1360 svq3_decoder_suggest="zlib"
1361 theora_decoder_select="vp3_decoder"
1362 tiff_decoder_suggest="zlib"
1363 tiff_encoder_suggest="zlib"
1364 truehd_decoder_select="mlp_decoder"
1365 tscc_decoder_select="zlib"
1366 twinvq_decoder_select="mdct lsp sinewin"
1367 vc1_decoder_select="h263_decoder"
1368 vc1_crystalhd_decoder_select="crystalhd"
1369 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1370 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1371 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1372 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1373 vorbis_decoder_select="mdct"
1374 vorbis_encoder_select="mdct"
1375 vp6_decoder_select="huffman"
1376 vp6a_decoder_select="vp6_decoder"
1377 vp6f_decoder_select="vp6_decoder"
1378 vp8_decoder_select="h264pred"
1379 wmapro_decoder_select="mdct sinewin"
1380 wmav1_decoder_select="mdct sinewin"
1381 wmav1_encoder_select="mdct sinewin"
1382 wmav2_decoder_select="mdct sinewin"
1383 wmav2_encoder_select="mdct sinewin"
1384 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1385 wmv1_decoder_select="h263_decoder"
1386 wmv1_encoder_select="h263_encoder"
1387 wmv2_decoder_select="h263_decoder"
1388 wmv2_encoder_select="h263_encoder"
1389 wmv3_decoder_select="vc1_decoder"
1390 wmv3_crystalhd_decoder_select="crystalhd"
1391 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1392 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1393 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1394 zlib_decoder_select="zlib"
1395 zlib_encoder_select="zlib"
1396 zmbv_decoder_select="zlib"
1397 zmbv_encoder_select="zlib"
1398
1399 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1400 vaapi_deps="va_va_h"
1401 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1402
1403 # parsers
1404 h264_parser_select="golomb h264dsp h264pred"
1405
1406 # external libraries
1407 libcelt_decoder_deps="libcelt"
1408 libdirac_decoder_deps="libdirac !libschroedinger"
1409 libdirac_encoder_deps="libdirac"
1410 libfaac_encoder_deps="libfaac"
1411 libgsm_decoder_deps="libgsm"
1412 libgsm_encoder_deps="libgsm"
1413 libgsm_ms_decoder_deps="libgsm"
1414 libgsm_ms_encoder_deps="libgsm"
1415 libmp3lame_encoder_deps="libmp3lame"
1416 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1417 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1418 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1419 libopenjpeg_decoder_deps="libopenjpeg"
1420 libschroedinger_decoder_deps="libschroedinger"
1421 libschroedinger_encoder_deps="libschroedinger"
1422 libspeex_decoder_deps="libspeex"
1423 libtheora_encoder_deps="libtheora"
1424 libvo_aacenc_encoder_deps="libvo_aacenc"
1425 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1426 libvorbis_encoder_deps="libvorbis"
1427 libvpx_decoder_deps="libvpx"
1428 libvpx_encoder_deps="libvpx"
1429 libx264_encoder_deps="libx264"
1430 libxavs_encoder_deps="libxavs"
1431 libxvid_encoder_deps="libxvid"
1432
1433 # demuxers / muxers
1434 ac3_demuxer_select="ac3_parser"
1435 asf_stream_muxer_select="asf_muxer"
1436 avisynth_demuxer_deps="avisynth"
1437 dirac_demuxer_select="dirac_parser"
1438 eac3_demuxer_select="ac3_parser"
1439 flac_demuxer_select="flac_parser"
1440 ipod_muxer_select="mov_muxer"
1441 libnut_demuxer_deps="libnut"
1442 libnut_muxer_deps="libnut"
1443 matroska_audio_muxer_select="matroska_muxer"
1444 matroska_demuxer_suggest="zlib bzlib"
1445 mov_demuxer_suggest="zlib"
1446 mp3_demuxer_select="mpegaudio_parser"
1447 mp4_muxer_select="mov_muxer"
1448 mpegtsraw_demuxer_select="mpegts_demuxer"
1449 mxf_d10_muxer_select="mxf_muxer"
1450 ogg_demuxer_select="golomb"
1451 psp_muxer_select="mov_muxer"
1452 rtp_demuxer_select="sdp_demuxer"
1453 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1454 rtsp_demuxer_select="http_protocol rtpdec"
1455 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1456 sap_demuxer_select="sdp_demuxer"
1457 sap_muxer_select="rtp_muxer rtp_protocol"
1458 sdp_demuxer_select="rtpdec"
1459 spdif_muxer_select="aac_parser"
1460 tg2_muxer_select="mov_muxer"
1461 tgp_muxer_select="mov_muxer"
1462 w64_demuxer_deps="wav_demuxer"
1463
1464 # indevs / outdevs
1465 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1466 alsa_outdev_deps="alsa_asoundlib_h"
1467 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1468 dshow_indev_deps="IBaseFilter"
1469 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1470 dv1394_indev_deps="dv1394 dv_demuxer"
1471 fbdev_indev_deps="linux_fb_h"
1472 jack_indev_deps="jack_jack_h sem_timedwait"
1473 libdc1394_indev_deps="libdc1394"
1474 openal_indev_deps="openal"
1475 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1476 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1477 sdl_outdev_deps="sdl"
1478 sndio_indev_deps="sndio_h"
1479 sndio_outdev_deps="sndio_h"
1480 v4l_indev_deps="linux_videodev_h"
1481 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1482 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1483 vfwcap_indev_extralibs="-lavicap32"
1484 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1485 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1486
1487 # protocols
1488 gopher_protocol_deps="network"
1489 http_protocol_deps="network"
1490 http_protocol_select="tcp_protocol"
1491 mmsh_protocol_select="http_protocol"
1492 mmst_protocol_deps="network"
1493 rtmp_protocol_select="tcp_protocol"
1494 rtp_protocol_select="udp_protocol"
1495 tcp_protocol_deps="network"
1496 udp_protocol_deps="network"
1497
1498 # filters
1499 blackframe_filter_deps="gpl"
1500 cropdetect_filter_deps="gpl"
1501 drawtext_filter_deps="libfreetype"
1502 frei0r_filter_deps="frei0r dlopen strtok_r"
1503 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1504 hqdn3d_filter_deps="gpl"
1505 movie_filter_deps="avcodec avformat"
1506 mp_filter_deps="gpl avcodec"
1507 negate_filter_deps="lut_filter"
1508 ocv_filter_deps="libopencv"
1509 scale_filter_deps="swscale"
1510 yadif_filter_deps="gpl"
1511
1512 # libraries
1513 avdevice_deps="avcodec avformat"
1514 avformat_deps="avcodec"
1515 postproc_deps="gpl"
1516
1517 # programs
1518 ffmpeg_deps="avcodec avformat swscale"
1519 ffmpeg_select="buffer_filter buffersink_filter"
1520 ffplay_deps="avcodec avformat swscale sdl"
1521 ffplay_select="buffersink_filter rdft"
1522 ffprobe_deps="avcodec avformat"
1523 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1524 ffserver_extralibs='$ldl'
1525
1526 doc_deps="texi2html"
1527
1528 # tests
1529
1530 test_deps(){
1531     suf1=$1
1532     suf2=$2
1533     shift 2
1534     for v; do
1535         dep=${v%=*}
1536         tests=${v#*=}
1537         for name in ${tests}; do
1538             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1539         done
1540     done
1541 }
1542
1543 test_deps _encoder _decoder                                             \
1544     adpcm_g726=g726                                                     \
1545     adpcm_ima_qt                                                        \
1546     adpcm_ima_wav                                                       \
1547     adpcm_ms                                                            \
1548     adpcm_swf                                                           \
1549     adpcm_yamaha=adpcm_yam                                              \
1550     alac                                                                \
1551     asv1                                                                \
1552     asv2                                                                \
1553     bmp                                                                 \
1554     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1555     dvvideo="dv dv50"                                                   \
1556     ffv1                                                                \
1557     flac                                                                \
1558     flashsv                                                             \
1559     flv                                                                 \
1560     gif                                                                 \
1561     h261                                                                \
1562     h263="h263 h263p"                                                   \
1563     huffyuv                                                             \
1564     jpegls                                                              \
1565     mjpeg="jpg mjpeg ljpeg"                                             \
1566     mp2                                                                 \
1567     mpeg1video="mpeg mpeg1b"                                            \
1568     mpeg2video="mpeg2 mpeg2thread"                                      \
1569     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1570     msmpeg4v3=msmpeg4                                                   \
1571     msmpeg4v2                                                           \
1572     pbm=pbmpipe                                                         \
1573     pcx                                                                 \
1574     pgm="pgm pgmpipe"                                                   \
1575     png                                                                 \
1576     ppm="ppm ppmpipe"                                                   \
1577     rawvideo="rgb yuv"                                                  \
1578     roq                                                                 \
1579     rv10                                                                \
1580     rv20                                                                \
1581     sgi                                                                 \
1582     snow="snow snowll"                                                  \
1583     svq1                                                                \
1584     targa=tga                                                           \
1585     tiff                                                                \
1586     wmav1                                                               \
1587     wmav2                                                               \
1588     wmv1                                                                \
1589     wmv2                                                                \
1590
1591 test_deps _muxer _demuxer                                               \
1592     aiff                                                                \
1593     pcm_alaw=alaw                                                       \
1594     asf                                                                 \
1595     au                                                                  \
1596     avi                                                                 \
1597     dv=dv_fmt                                                           \
1598     ffm                                                                 \
1599     flv=flv_fmt                                                         \
1600     gxf                                                                 \
1601     matroska=mkv                                                        \
1602     mmf                                                                 \
1603     mov                                                                 \
1604     pcm_mulaw=mulaw                                                     \
1605     mxf                                                                 \
1606     nut                                                                 \
1607     ogg                                                                 \
1608     rawvideo=pixfmt                                                     \
1609     rm                                                                  \
1610     swf                                                                 \
1611     mpegts=ts                                                           \
1612     voc                                                                 \
1613     wav                                                                 \
1614     yuv4mpegpipe=yuv4mpeg                                               \
1615
1616 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1617 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1618
1619 # default parameters
1620
1621 logfile="config.log"
1622
1623 # installation paths
1624 prefix_default="/usr/local"
1625 bindir_default='${prefix}/bin'
1626 datadir_default='${prefix}/share/ffmpeg'
1627 incdir_default='${prefix}/include'
1628 libdir_default='${prefix}/lib'
1629 mandir_default='${prefix}/share/man'
1630 shlibdir_default="$libdir_default"
1631
1632 # toolchain
1633 ar_default="ar"
1634 cc_default="gcc"
1635 cc_version=\"unknown\"
1636 host_cc_default="gcc"
1637 install="install"
1638 ln_s="ln -sf"
1639 nm_default="nm"
1640 objformat="elf"
1641 pkg_config_default=pkg-config
1642 ranlib="ranlib"
1643 strip_default="strip"
1644 yasmexe="yasm"
1645 nogas=":"
1646
1647 nm_opts='-g'
1648
1649 # machine
1650 arch_default=$(uname -m)
1651 cpu="generic"
1652
1653 # OS
1654 target_os_default=$(tolower $(uname -s))
1655 host_os=$target_os_default
1656
1657 # configurable options
1658 enable avcodec
1659 enable avdevice
1660 enable avfilter
1661 enable avformat
1662 enable avutil
1663 enable asm
1664 enable debug
1665 enable doc
1666 enable fastdiv
1667 enable ffmpeg
1668 enable ffplay
1669 enable ffprobe
1670 enable ffserver
1671 enable network
1672 enable optimizations
1673 enable postproc
1674 enable protocols
1675 enable static
1676 enable stripping
1677 enable swscale
1678 enable swscale_alpha
1679
1680 # build settings
1681 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1682 FFSERVERLDFLAGS=-Wl,-E
1683 LIBPREF="lib"
1684 LIBSUF=".a"
1685 FULLNAME='$(NAME)$(BUILDSUF)'
1686 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1687 SLIBPREF="lib"
1688 SLIBSUF=".so"
1689 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1690 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1691 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1692 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1693 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1694 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1695
1696 AS_O='-o $@'
1697 CC_O='-o $@'
1698
1699 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1700 host_libs='-lm'
1701
1702 target_path='$(CURDIR)'
1703
1704 # since the object filename is not given with the -MM flag, the compiler
1705 # is only able to print the basename, and we must add the path ourselves
1706 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1707 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1708
1709 # find source path
1710 if test -f configure; then
1711     source_path=.
1712 else
1713     source_path=$(cd $(dirname "$0"); pwd)
1714     echo "$source_path" | grep -q '[[:blank:]]' &&
1715         die "Out of tree builds are impossible with whitespace in source path."
1716     test -e "$source_path/config.h" &&
1717         die "Out of tree builds are impossible with config.h in source dir."
1718 fi
1719
1720 for v in "$@"; do
1721     r=${v#*=}
1722     l=${v%"$r"}
1723     r=$(sh_quote "$r")
1724     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1725 done
1726
1727 find_things(){
1728     thing=$1
1729     pattern=$2
1730     file=$source_path/$3
1731     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1732 }
1733
1734 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1735 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1736 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1737 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1738 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1739 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1740 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1741 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1742 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1743 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1744 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1745
1746 find_tests(){
1747     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1748 }
1749
1750 ACODEC_TESTS=$(find_tests acodec)
1751 VCODEC_TESTS=$(find_tests vsynth1)
1752 LAVF_TESTS=$(find_tests lavf)
1753 LAVFI_TESTS=$(find_tests lavfi)
1754 SEEK_TESTS=$(find_tests seek seek_)
1755
1756 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1757
1758 for n in $COMPONENT_LIST; do
1759     v=$(toupper ${n%s})_LIST
1760     eval enable \$$v
1761     eval ${n}_if_any="\$$v"
1762 done
1763
1764 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1765
1766 die_unknown(){
1767     echo "Unknown option \"$1\"."
1768     echo "See $0 --help for available options."
1769     exit 1
1770 }
1771
1772 show_list() {
1773     suffix=_$1
1774     shift
1775     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1776     exit 0
1777 }
1778
1779 for opt do
1780     optval="${opt#*=}"
1781     case "$opt" in
1782     --extra-ldflags=*) add_ldflags $optval
1783     ;;
1784     --extra-libs=*) add_extralibs $optval
1785     ;;
1786     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1787     ;;
1788     --enable-debug=*) debuglevel="$optval"
1789     ;;
1790     --disable-everything)
1791     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1792     ;;
1793     --enable-*=*|--disable-*=*)
1794     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1795     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1796     eval list=\$$(toupper $thing)_LIST
1797     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1798     $action $(filter "$name" $list)
1799     ;;
1800     --enable-?*|--disable-?*)
1801     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1802     if is_in $option $COMPONENT_LIST; then
1803         test $action = disable && action=unset
1804         eval $action \$$(toupper ${option%s})_LIST
1805     elif is_in $option $CMDLINE_SELECT; then
1806         $action $option
1807     else
1808         die_unknown $opt
1809     fi
1810     ;;
1811     --list-*)
1812         NAME="${opt#--list-}"
1813         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1814         NAME=${NAME%s}
1815         eval show_list $NAME \$$(toupper $NAME)_LIST
1816     ;;
1817     --help|-h) show_help
1818     ;;
1819     *)
1820     optname="${opt%%=*}"
1821     optname="${optname#--}"
1822     optname=$(echo "$optname" | sed 's/-/_/g')
1823     if is_in $optname $CMDLINE_SET; then
1824         eval $optname='$optval'
1825     elif is_in $optname $CMDLINE_APPEND; then
1826         append $optname "$optval"
1827     else
1828          die_unknown $opt
1829     fi
1830     ;;
1831     esac
1832 done
1833
1834 disabled logging && logfile=/dev/null
1835
1836 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1837 set >> $logfile
1838
1839 test -n "$cross_prefix" && enable cross_compile
1840
1841 if enabled cross_compile; then
1842     test -n "$arch" && test -n "$target_os" ||
1843         die "Must specify target arch and OS when cross-compiling"
1844 fi
1845
1846 set_default arch target_os
1847
1848 ar_default="${cross_prefix}${ar_default}"
1849 cc_default="${cross_prefix}${cc_default}"
1850 nm_default="${cross_prefix}${nm_default}"
1851 pkg_config_default="${cross_prefix}${pkg_config_default}"
1852 ranlib="${cross_prefix}${ranlib}"
1853 strip_default="${cross_prefix}${strip_default}"
1854
1855 sysinclude_default="${sysroot}/usr/include"
1856
1857 set_default cc nm pkg_config strip sysinclude
1858 enabled cross_compile || host_cc_default=$cc
1859 set_default host_cc
1860
1861 if ! $pkg_config --version >/dev/null 2>&1; then
1862     warn "$pkg_config not found, library detection may fail."
1863     pkg_config=false
1864 fi
1865
1866 exesuf() {
1867     case $1 in
1868         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1869     esac
1870 }
1871
1872 EXESUF=$(exesuf $target_os)
1873 HOSTEXESUF=$(exesuf $host_os)
1874
1875 # set temporary file name
1876 : ${TMPDIR:=$TEMPDIR}
1877 : ${TMPDIR:=$TMP}
1878 : ${TMPDIR:=/tmp}
1879
1880 if ! check_cmd mktemp -u XXXXXX; then
1881     # simple replacement for missing mktemp
1882     # NOT SAFE FOR GENERAL USE
1883     mktemp(){
1884         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1885     }
1886 fi
1887
1888 tmpfile(){
1889     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1890         (set -C; exec > $tmp) 2>/dev/null ||
1891         die "Unable to create temporary file in $TMPDIR."
1892     append TMPFILES $tmp
1893     eval $1=$tmp
1894 }
1895
1896 trap 'rm -f -- $TMPFILES' EXIT
1897
1898 tmpfile TMPC  .c
1899 tmpfile TMPE  $EXESUF
1900 tmpfile TMPH  .h
1901 tmpfile TMPO  .o
1902 tmpfile TMPS  .S
1903 tmpfile TMPV  .ver
1904 tmpfile TMPSH .sh
1905 tmpfile TMPASM .asm
1906
1907 unset -f mktemp
1908
1909 chmod +x $TMPE
1910
1911 # make sure we can execute files in $TMPDIR
1912 cat > $TMPSH 2>> $logfile <<EOF
1913 #! /bin/sh
1914 EOF
1915 chmod +x $TMPSH >> $logfile 2>&1
1916 if ! $TMPSH >> $logfile 2>&1; then
1917     cat <<EOF
1918 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1919 variable to another directory and make sure that it is not mounted noexec.
1920 EOF
1921     die "Sanity test failed."
1922 fi
1923
1924 filter_cflags=echo
1925 filter_cppflags=echo
1926 filter_asflags=echo
1927
1928 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1929     cc_type=llvm_gcc
1930     cc_version=__VERSION__
1931     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1932     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1933     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1934     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1935     speed_cflags='-O3'
1936     size_cflags='-Os'
1937 elif $cc -v 2>&1 | grep -qi ^gcc; then
1938     cc_type=gcc
1939     cc_version=__VERSION__
1940     gcc_version=$($cc --version | head -n1)
1941     gcc_basever=$($cc -dumpversion)
1942     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1943     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1944     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1945     if ! $cc -dumpversion | grep -q '^2\.'; then
1946         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1947         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1948     fi
1949     speed_cflags='-O3'
1950     size_cflags='-Os'
1951 elif $cc --version 2>/dev/null | grep -q Intel; then
1952     cc_type=icc
1953     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1954     cc_ident=$($cc --version | head -n1)
1955     icc_version=$($cc -dumpversion)
1956     CC_DEPFLAGS='-MMD'
1957     AS_DEPFLAGS='-MMD'
1958     speed_cflags='-O3'
1959     size_cflags='-Os'
1960     noopt_cflags='-O1'
1961 elif $cc -v 2>&1 | grep -q xlc; then
1962     cc_type=xlc
1963     cc_version="AV_STRINGIFY(__IBMC__)"
1964     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1965     speed_cflags='-O5'
1966     size_cflags='-O5 -qcompact'
1967 elif $cc -V 2>/dev/null | grep -q Compaq; then
1968     cc_type=ccc
1969     cc_version="AV_STRINGIFY(__DECC_VER)"
1970     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1971     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1972     debuglevel=3
1973     add_ldflags -Wl,-z,now # calls to libots crash without this
1974     speed_cflags='-fast'
1975     size_cflags='-O1'
1976 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1977     test -d "$sysroot" || die "No valid sysroot specified."
1978     cc_type=armcc
1979     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1980     cc_ident=$($cc --vsn | head -n1)
1981     armcc_conf="$PWD/armcc.conf"
1982     $cc --arm_linux_configure                 \
1983         --arm_linux_config_file="$armcc_conf" \
1984         --configure_sysroot="$sysroot"        \
1985         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1986         die "Error creating armcc configuration file."
1987     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1988     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1989     as_default="${cross_prefix}gcc"
1990     CC_DEPFLAGS='-MMD'
1991     AS_DEPFLAGS='-MMD'
1992     speed_cflags='-O3'
1993     size_cflags='-Os'
1994     filter_asflags="filter_out -W${armcc_opt}*"
1995 elif $cc -version 2>/dev/null | grep -q TMS470; then
1996     cc_type=tms470
1997     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1998     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1999     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2000     CC_O='-fr=$(@D)'
2001     as_default="${cross_prefix}gcc"
2002     ld_default="${cross_prefix}gcc"
2003     TMPO=$(basename $TMPC .c).o
2004     append TMPFILES $TMPO
2005     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2006     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2007     AS_DEPFLAGS='-MMD'
2008     speed_cflags='-O3 -mf=5'
2009     size_cflags='-O3 -mf=2'
2010     filter_cflags=tms470_flags
2011     tms470_flags(){
2012         for flag; do
2013             case $flag in
2014                 -march=*|-mcpu=*)
2015                     case "${flag#*=}" in
2016                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2017                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2018                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2019                         armv6*|arm11*)          echo -mv=6   ;;
2020                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2021                                                 echo -mv=5e  ;;
2022                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2023                     esac
2024                     ;;
2025                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2026                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2027                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2028                 -msoft-float)   echo --float_support=vfplib       ;;
2029                 -O[0-3]|-mf=*)  echo $flag                        ;;
2030                 -g)             echo -g -mn                       ;;
2031                 -pds=*)         echo $flag                        ;;
2032             esac
2033         done
2034     }
2035 elif $cc -v 2>&1 | grep -q clang; then
2036     cc_type=clang
2037     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2038         cc_version=__clang_version__ || cc_version=__VERSION__
2039     cc_ident=$($cc --version | head -n1)
2040     CC_DEPFLAGS='-MMD'
2041     AS_DEPFLAGS='-MMD'
2042     speed_cflags='-O3'
2043     size_cflags='-Os'
2044 elif $cc -V 2>&1 | grep -q Sun; then
2045     cc_type=suncc
2046     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2047     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2048     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2049     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2050     speed_cflags='-O5'
2051     size_cflags='-O5 -xspace'
2052     filter_cflags=suncc_flags
2053     suncc_flags(){
2054         for flag; do
2055             case $flag in
2056                 -march=*|-mcpu=*)
2057                     case "${flag#*=}" in
2058                         native)                   echo -xtarget=native       ;;
2059                         v9|niagara)               echo -xarch=sparc          ;;
2060                         ultrasparc)               echo -xarch=sparcvis       ;;
2061                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2062                         i586|pentium)             echo -xchip=pentium        ;;
2063                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2064                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2065                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2066                         pentium4*)          echo -xtarget=pentium4           ;;
2067                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2068                         *-sse3)             echo -xarch=sse3                 ;;
2069                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2070                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2071                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2072                         k8|opteron|athlon64|athlon-fx)
2073                                                   echo -xarch=sse2a          ;;
2074                         athlon*)                  echo -xarch=pentium_proa   ;;
2075                     esac
2076                     ;;
2077                 -std=c99)             echo -xc99              ;;
2078                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2079                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2080                 -W*,*)                echo $flag              ;;
2081                 -f*-*|-W*)                                    ;;
2082                 *)                    echo $flag              ;;
2083             esac
2084         done
2085     }
2086 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2087     cc_type=pathscale
2088     cc_version=__PATHSCALE__
2089     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2090     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2091     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2092     speed_cflags='-O2'
2093     size_cflags='-Os'
2094     filter_cflags='filter_out -Wdisabled-optimization'
2095 elif $cc -v 2>&1 | grep -q Open64; then
2096     cc_type=open64
2097     cc_version=__OPEN64__
2098     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2099     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2100     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2101     speed_cflags='-O2'
2102     size_cflags='-Os'
2103     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2104 fi
2105
2106 test -n "$cc_type" && enable $cc_type ||
2107     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2108
2109 : ${as_default:=$cc}
2110 : ${dep_cc_default:=$cc}
2111 : ${ld_default:=$cc}
2112 set_default ar as dep_cc ld
2113
2114 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2115 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2116
2117 add_cflags $extra_cflags
2118 add_asflags $extra_cflags
2119
2120 if test -n "$sysroot"; then
2121     case "$cc_type" in
2122         gcc|llvm_gcc|clang)
2123             add_cppflags --sysroot="$sysroot"
2124             add_ldflags --sysroot="$sysroot"
2125         ;;
2126         tms470)
2127             add_cppflags -I"$sysinclude"
2128             add_ldflags  --sysroot="$sysroot"
2129         ;;
2130     esac
2131 fi
2132
2133 if test "$cpu" = host; then
2134     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2135
2136     case "$cc_type" in
2137         gcc|llvm_gcc)
2138             check_native(){
2139                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2140                 sed -n "/$1=/{
2141                             s/.*$1=\\([^ ]*\\).*/\\1/
2142                             p
2143                             q
2144                         }" $TMPE
2145             }
2146             cpu=$(check_native -march || check_native -mcpu)
2147         ;;
2148     esac
2149
2150     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2151 fi
2152
2153 # Deal with common $arch aliases
2154 case "$arch" in
2155     arm*)
2156         arch="arm"
2157     ;;
2158     mips|mipsel|IP*)
2159         arch="mips"
2160     ;;
2161     mips64*)
2162         arch="mips"
2163         subarch="mips64"
2164     ;;
2165     parisc|hppa)
2166         arch="parisc"
2167     ;;
2168     parisc64|hppa64)
2169         arch="parisc"
2170         subarch="parisc64"
2171     ;;
2172     "Power Macintosh"|ppc|powerpc)
2173         arch="ppc"
2174     ;;
2175     ppc64|powerpc64)
2176         arch="ppc"
2177         subarch="ppc64"
2178     ;;
2179     s390|s390x)
2180         arch="s390"
2181     ;;
2182     sh4|sh)
2183         arch="sh4"
2184     ;;
2185     sun4u|sparc64)
2186         arch="sparc"
2187         subarch="sparc64"
2188     ;;
2189     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2190         arch="x86"
2191     ;;
2192 esac
2193
2194 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2195 enable $arch
2196
2197 # Add processor-specific flags
2198 if test "$cpu" = generic; then
2199     : do nothing
2200 elif enabled ppc; then
2201
2202     case $(tolower $cpu) in
2203         601|ppc601|powerpc601)
2204             cpuflags="-mcpu=601"
2205             disable altivec
2206         ;;
2207         603*|ppc603*|powerpc603*)
2208             cpuflags="-mcpu=603"
2209             disable altivec
2210         ;;
2211         604*|ppc604*|powerpc604*)
2212             cpuflags="-mcpu=604"
2213             disable altivec
2214         ;;
2215         g3|75*|ppc75*|powerpc75*)
2216             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2217             disable altivec
2218         ;;
2219         g4|745*|ppc745*|powerpc745*)
2220             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2221         ;;
2222         74*|ppc74*|powerpc74*)
2223             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2224         ;;
2225         g5|970|ppc970|powerpc970|power4*)
2226             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2227         ;;
2228         cell)
2229             cpuflags="-mcpu=cell"
2230             enable ldbrx
2231         ;;
2232         e500v2)
2233             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2234             disable altivec
2235         ;;
2236         e500)
2237             cpuflags="-mcpu=8540 -mhard-float"
2238             disable altivec
2239         ;;
2240     esac
2241
2242 elif enabled x86; then
2243
2244     case $cpu in
2245         i[345]86|pentium)
2246             cpuflags="-march=$cpu"
2247             disable mmx
2248         ;;
2249         # targets that do NOT support conditional mov (cmov)
2250         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2251             cpuflags="-march=$cpu"
2252             disable cmov
2253         ;;
2254         # targets that do support conditional mov (cmov)
2255         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2256             cpuflags="-march=$cpu"
2257             enable cmov
2258             enable fast_cmov
2259         ;;
2260         # targets that do support conditional mov but on which it's slow
2261         pentium4|pentium4m|prescott|nocona)
2262             cpuflags="-march=$cpu"
2263             enable cmov
2264             disable fast_cmov
2265         ;;
2266     esac
2267
2268 elif enabled sparc; then
2269
2270     case $cpu in
2271         niagara)
2272             cpuflags="-mcpu=$cpu"
2273             disable vis
2274         ;;
2275         sparc64)
2276             cpuflags="-mcpu=v9"
2277         ;;
2278     esac
2279
2280 elif enabled arm; then
2281
2282     case $cpu in
2283         armv*)
2284             cpuflags="-march=$cpu"
2285             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2286         ;;
2287         *)
2288             cpuflags="-mcpu=$cpu"
2289             case $cpu in
2290                 cortex-a*)                               subarch=armv7a  ;;
2291                 cortex-r*)                               subarch=armv7r  ;;
2292                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2293                 arm11*)                                  subarch=armv6   ;;
2294                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2295                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2296             esac
2297         ;;
2298     esac
2299
2300 elif enabled alpha; then
2301
2302     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2303
2304 elif enabled bfin; then
2305
2306     cpuflags="-mcpu=$cpu"
2307
2308 elif enabled mips; then
2309
2310     cpuflags="-march=$cpu"
2311
2312 elif enabled avr32; then
2313
2314     case $cpu in
2315         ap7[02]0[0-2])
2316             subarch="avr32_ap"
2317             cpuflags="-mpart=$cpu"
2318         ;;
2319         ap)
2320             subarch="avr32_ap"
2321             cpuflags="-march=$cpu"
2322         ;;
2323         uc3[ab]*)
2324             subarch="avr32_uc"
2325             cpuflags="-mcpu=$cpu"
2326         ;;
2327         uc)
2328             subarch="avr32_uc"
2329             cpuflags="-march=$cpu"
2330         ;;
2331     esac
2332
2333 fi
2334
2335 add_cflags $cpuflags
2336 add_asflags $cpuflags
2337
2338 # compiler sanity check
2339 check_exec <<EOF
2340 int main(void){ return 0; }
2341 EOF
2342 if test "$?" != 0; then
2343     echo "$cc is unable to create an executable file."
2344     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2345         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2346         echo "Only do this if you know what cross compiling means."
2347     fi
2348     die "C compiler test failed."
2349 fi
2350
2351 add_cppflags -D_ISOC99_SOURCE
2352 check_cflags -std=c99
2353 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2354 #include <stdlib.h>
2355 EOF
2356 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2357 #include <stdlib.h>
2358 EOF
2359
2360 check_host_cflags -std=c99
2361 check_host_cflags -Wall
2362
2363 case "$arch" in
2364     alpha|ia64|mips|parisc|sparc)
2365         spic=$shared
2366     ;;
2367     x86)
2368         subarch="x86_32"
2369         check_cc <<EOF && subarch="x86_64"
2370         int test[(int)sizeof(char*) - 7];
2371 EOF
2372         if test "$subarch" = "x86_64"; then
2373             spic=$shared
2374         fi
2375     ;;
2376 esac
2377
2378 enable $subarch
2379 enabled spic && enable pic
2380
2381 # OS specific
2382 case $target_os in
2383     haiku)
2384         prefix_default="/boot/common"
2385         network_extralibs="-lnetwork"
2386         host_libs=
2387         ;;
2388     sunos)
2389         FFSERVERLDFLAGS=""
2390         SHFLAGS='-shared -Wl,-h,$$(@F)'
2391         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2392         network_extralibs="-lsocket -lnsl"
2393         add_cppflags -D__EXTENSIONS__
2394         nm_opts='-P -g'
2395         ;;
2396     netbsd)
2397         disable symver
2398         oss_indev_extralibs="-lossaudio"
2399         oss_outdev_extralibs="-lossaudio"
2400         ;;
2401     openbsd)
2402         enable malloc_aligned
2403         # On OpenBSD 4.5. the compiler does not use PIC unless
2404         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2405         # however the generated executable will not do anything
2406         # (simply quits with exit-code 1, no crash, no output).
2407         # Thus explicitly enable PIC here.
2408         enable pic
2409         disable symver
2410         SHFLAGS='-shared'
2411         oss_indev_extralibs="-lossaudio"
2412         oss_outdev_extralibs="-lossaudio"
2413         ;;
2414     dragonfly)
2415         enable malloc_aligned
2416         disable symver
2417         ;;
2418     freebsd)
2419         enable malloc_aligned
2420         ;;
2421     bsd/os)
2422         add_extralibs -lpoll -lgnugetopt
2423         strip="strip -d"
2424         ;;
2425     darwin)
2426         enable malloc_aligned
2427         gas="gas-preprocessor.pl $cc"
2428         enabled ppc && add_asflags -force_cpusubtype_ALL
2429         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2430         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2431         strip="${strip} -x"
2432         add_ldflags -Wl,-dynamic,-search_paths_first
2433         SLIBSUF=".dylib"
2434         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2435         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2436         FFSERVERLDFLAGS=-Wl,-bind_at_load
2437         objformat="macho"
2438         enabled x86_64 && objformat="macho64"
2439         enabled_any pic shared ||
2440             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2441         ;;
2442     mingw32*)
2443         if test $target_os = "mingw32ce"; then
2444             disable network
2445         else
2446             target_os=mingw32
2447         fi
2448         LIBTARGET=i386
2449         if enabled x86_64; then
2450             enable malloc_aligned
2451             LIBTARGET=x64
2452         elif enabled arm; then
2453             LIBTARGET=arm-wince
2454         fi
2455         shlibdir_default="$bindir_default"
2456         SLIBPREF=""
2457         SLIBSUF=".dll"
2458         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2459         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2460         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2461         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2462         SLIB_INSTALL_LINKS=
2463         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2464         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2465         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'
2466         objformat="win32"
2467         enable dos_paths
2468         check_cflags -fno-common
2469         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2470                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2471                 die "ERROR: MinGW runtime version must be >= 3.15."
2472         add_cppflags -U__STRICT_ANSI__
2473         ;;
2474     cygwin*)
2475         target_os=cygwin
2476         shlibdir_default="$bindir_default"
2477         SLIBPREF="cyg"
2478         SLIBSUF=".dll"
2479         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2480         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2481         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2482         objformat="win32"
2483         enable dos_paths
2484         check_cflags -fno-common
2485         add_cppflags -U__STRICT_ANSI__
2486         ;;
2487     *-dos|freedos|opendos)
2488         network_extralibs="-lsocket"
2489         objformat="coff"
2490         enable dos_paths
2491         add_cppflags -U__STRICT_ANSI__
2492         ;;
2493     linux)
2494         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2495         enable dv1394
2496         ;;
2497     irix*)
2498         target_os=irix
2499         ranlib="echo ignoring ranlib"
2500         ;;
2501     os/2*)
2502         strip="lxlite -CS"
2503         ln_s="cp -f"
2504         objformat="aout"
2505         add_cppflags -D_GNU_SOURCE
2506         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2507         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2508         FFSERVERLDFLAGS=""
2509         LIBSUF="_s.a"
2510         SLIBPREF=""
2511         SLIBSUF=".dll"
2512         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2513         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2514         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2515           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2516           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2517           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2518           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2519           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2520         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2521           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2522         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2523         enable dos_paths
2524         ;;
2525     gnu/kfreebsd)
2526         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2527         ;;
2528     gnu)
2529         ;;
2530     qnx)
2531         add_cppflags -D_QNX_SOURCE
2532         network_extralibs="-lsocket"
2533         ;;
2534     symbian)
2535         SLIBSUF=".dll"
2536         enable dos_paths
2537         add_cflags --include=$sysinclude/gcce/gcce.h
2538         ;;
2539     none)
2540         ;;
2541     *)
2542         die "Unknown OS '$target_os'."
2543         ;;
2544 esac
2545
2546 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2547
2548 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2549
2550 set_default $PATHS_LIST
2551
2552 # we need to build at least one lib type
2553 if ! enabled_any static shared; then
2554     cat <<EOF
2555 At least one library type must be built.
2556 Specify --enable-static to build the static libraries or --enable-shared to
2557 build the shared libraries as well. To only build the shared libraries specify
2558 --disable-static in addition to --enable-shared.
2559 EOF
2560     exit 1;
2561 fi
2562
2563 die_license_disabled() {
2564     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2565 }
2566
2567 die_license_disabled gpl libx264
2568 die_license_disabled gpl libxavs
2569 die_license_disabled gpl libxvid
2570 die_license_disabled gpl x11grab
2571
2572 die_license_disabled nonfree libfaac
2573
2574 die_license_disabled version3 libopencore_amrnb
2575 die_license_disabled version3 libopencore_amrwb
2576 die_license_disabled version3 libvo_aacenc
2577 die_license_disabled version3 libvo_amrwbenc
2578
2579 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2580
2581 disabled optimizations || check_cflags -fomit-frame-pointer
2582
2583 enable_pic() {
2584     enable pic
2585     add_cppflags -DPIC
2586     add_cflags   -fPIC
2587     add_asflags  -fPIC
2588 }
2589
2590 enabled pic && enable_pic
2591
2592 check_cc <<EOF || die "Symbol mangling check failed."
2593 int ff_extern;
2594 EOF
2595 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2596 extern_prefix=${sym%%ff_extern*}
2597
2598 check_cc <<EOF && enable inline_asm
2599 void foo(void) { __asm__ volatile ("" ::); }
2600 EOF
2601
2602 _restrict=
2603 for restrict_keyword in restrict __restrict__ __restrict; do
2604     check_cc <<EOF && _restrict=$restrict_keyword && break
2605 void foo(char * $restrict_keyword p);
2606 EOF
2607 done
2608
2609 check_cc <<EOF && enable attribute_packed
2610 struct { int x; } __attribute__((packed)) x;
2611 EOF
2612
2613 check_cc <<EOF && enable attribute_may_alias
2614 union { int x; } __attribute__((may_alias)) x;
2615 EOF
2616
2617 check_cc <<EOF || die "endian test failed"
2618 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2619 EOF
2620 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2621
2622 if enabled alpha; then
2623
2624     check_cflags -mieee
2625
2626 elif enabled arm; then
2627
2628     enabled thumb && check_cflags -mthumb || check_cflags -marm
2629     nogas=die
2630
2631     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2632         enable vfp_args
2633     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2634         case "${cross_prefix:-$cc}" in
2635             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2636             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2637 __asm__ (".eabi_attribute 28, 1");
2638 int main(void) { return 0; }
2639 EOF
2640         esac
2641         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2642     fi
2643
2644     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2645     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2646     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2647     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2648     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2649     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2650     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2651
2652     enabled_all armv6t2 shared !pic && enable_pic
2653
2654 elif enabled mips; then
2655
2656     check_asm loongson '"dmult.g $1, $2, $3"'
2657     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2658
2659 elif enabled ppc; then
2660
2661     enable local_aligned_8 local_aligned_16
2662
2663     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2664     check_asm ibm_asm   '"add 0, 0, 0"'
2665     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2666     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2667
2668     # AltiVec flags: The FSF version of GCC differs from the Apple version
2669     if enabled altivec; then
2670         nogas=warn
2671         check_cflags -maltivec -mabi=altivec &&
2672         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2673         check_cflags -faltivec
2674
2675         # check if our compiler supports Motorola AltiVec C API
2676         check_cc <<EOF || disable altivec
2677 $inc_altivec_h
2678 int main(void) {
2679     vector signed int v1, v2, v3;
2680     v1 = vec_add(v2,v3);
2681     return 0;
2682 }
2683 EOF
2684
2685         # check if our compiler supports braces for vector declarations
2686         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2687 $inc_altivec_h
2688 int main (void) { (vector int) {1}; return 0; }
2689 EOF
2690     fi
2691
2692 elif enabled sparc; then
2693
2694     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2695         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2696
2697 elif enabled x86; then
2698
2699     enable local_aligned_8 local_aligned_16
2700
2701     # check whether EBP is available on x86
2702     # As 'i' is stored on the stack, this program will crash
2703     # if the base pointer is used to access it because the
2704     # base pointer is cleared in the inline assembly code.
2705     check_exec_crash <<EOF && enable ebp_available
2706     volatile int i=0;
2707     __asm__ volatile (
2708         "xorl %%ebp, %%ebp"
2709     ::: "%ebp");
2710     return i;
2711 EOF
2712
2713     # check whether EBX is available on x86
2714     check_asm ebx_available '""::"b"(0)' &&
2715         check_asm ebx_available '"":::"%ebx"'
2716
2717     # check whether xmm clobbers are supported
2718     check_asm xmm_clobbers '"":::"%xmm0"'
2719
2720     # check whether binutils is new enough to compile SSSE3/MMX2
2721     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2722     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2723
2724     check_asm bswap '"bswap %%eax" ::: "%eax"'
2725
2726     if ! disabled_any asm mmx yasm; then
2727         if check_cmd $yasmexe --version; then
2728             enabled x86_64 && yasm_extra="-m amd64"
2729             yasm_debug="-g dwarf2"
2730         elif check_cmd nasm -v; then
2731             yasmexe=nasm
2732             yasm_debug="-g -F dwarf"
2733             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2734         fi
2735
2736         YASMFLAGS="-f $objformat $yasm_extra"
2737         enabled pic               && append YASMFLAGS "-DPIC"
2738         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2739         case "$objformat" in
2740             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2741         esac
2742
2743         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2744             die "yasm not found, use --disable-yasm for a crippled build"
2745         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2746     fi
2747
2748     case "$cpu" in
2749         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2750             disable fast_clz
2751         ;;
2752     esac
2753
2754 fi
2755
2756 if enabled asm; then
2757     as=${gas:=$as}
2758     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2759         $nogas "GNU assembler not found, install gas-preprocessor"
2760 fi
2761
2762 check_ldflags -Wl,--as-needed
2763
2764 if check_func dlopen; then
2765     ldl=
2766 elif check_func dlopen -ldl; then
2767     ldl=-ldl
2768 fi
2769
2770 if enabled network; then
2771     check_type "sys/types.h sys/socket.h" socklen_t
2772     check_type netdb.h "struct addrinfo"
2773     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2774     check_type netinet/in.h "struct sockaddr_in6"
2775     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2776     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2777     # Prefer arpa/inet.h over winsock2
2778     if check_header arpa/inet.h ; then
2779         check_func closesocket
2780     elif check_header winsock2.h ; then
2781         check_func_headers winsock2.h closesocket -lws2 && \
2782             network_extralibs="-lws2" || \
2783         { check_func_headers winsock2.h closesocket -lws2_32 && \
2784             network_extralibs="-lws2_32"; }
2785         check_type ws2tcpip.h socklen_t
2786         check_type ws2tcpip.h "struct addrinfo"
2787         check_type ws2tcpip.h "struct ipv6_mreq"
2788         check_type ws2tcpip.h "struct sockaddr_in6"
2789         check_type ws2tcpip.h "struct sockaddr_storage"
2790         check_struct winsock2.h "struct sockaddr" sa_len
2791     else
2792         disable network
2793     fi
2794 fi
2795
2796 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2797 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2798
2799 check_func  fcntl
2800 check_func  fork
2801 check_func  getaddrinfo $network_extralibs
2802 check_func  gethrtime
2803 check_func  getrusage
2804 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2805 check_func  inet_aton $network_extralibs
2806 check_func  isatty
2807 check_func  localtime_r
2808 check_func  ${malloc_prefix}memalign            && enable memalign
2809 check_func  mkstemp
2810 check_func  mmap
2811 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2812 check_func  setrlimit
2813 check_func  strerror_r
2814 check_func  strtok_r
2815 check_func_headers conio.h kbhit
2816 check_func_headers io.h setmode
2817 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2818 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2819 check_func_headers windows.h GetProcessTimes
2820 check_func_headers windows.h MapViewOfFile
2821 check_func_headers windows.h VirtualAlloc
2822
2823 check_header dlfcn.h
2824 check_header dxva2api.h
2825 check_header libcrystalhd/libcrystalhd_if.h
2826 check_header malloc.h
2827 check_header poll.h
2828 check_header sys/mman.h
2829 check_header sys/resource.h
2830 check_header sys/select.h
2831 check_header termios.h
2832 check_header vdpau/vdpau.h
2833 check_header vdpau/vdpau_x11.h
2834 check_header X11/extensions/XvMClib.h
2835
2836 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2837
2838 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2839 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2840
2841 # check for some common methods of building with pthread support
2842 # do this before the optional library checks as some of them require pthreads
2843 if ! disabled pthreads && ! enabled w32threads; then
2844     enable pthreads
2845     if check_func pthread_create; then
2846         :
2847     elif check_func pthread_create -pthread; then
2848         add_cflags -pthread
2849         add_extralibs -pthread
2850     elif check_func pthread_create -pthreads; then
2851         add_cflags -pthreads
2852         add_extralibs -pthreads
2853     elif check_func pthread_create -lpthreadGC2; then
2854         add_extralibs -lpthreadGC2
2855     elif ! check_lib pthread.h pthread_create -lpthread; then
2856         disable pthreads
2857     fi
2858 fi
2859
2860 for thread in $THREADS_LIST; do
2861     if enabled $thread; then
2862         test -n "$thread_type" &&
2863             die "ERROR: Only one thread type must be selected." ||
2864             thread_type="$thread"
2865     fi
2866 done
2867
2868 check_lib math.h sin -lm && LIBM="-lm"
2869 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2870 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2871
2872 check_mathfunc exp2
2873 check_mathfunc exp2f
2874 check_mathfunc llrint
2875 check_mathfunc llrintf
2876 check_mathfunc log2
2877 check_mathfunc log2f
2878 check_mathfunc lrint
2879 check_mathfunc lrintf
2880 check_mathfunc round
2881 check_mathfunc roundf
2882 check_mathfunc trunc
2883 check_mathfunc truncf
2884
2885 # these are off by default, so fail if requested and not available
2886 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2887 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2888 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2889 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2890 enabled libdirac   && require_pkg_config dirac                          \
2891     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2892     "dirac_decoder_init dirac_encoder_init"
2893 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2894 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2895 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2896 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2897 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2898 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2899 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2900 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2901 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2902 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2903 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2904 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2905 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2906 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2907 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2908 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2909 enabled libvpx     && {
2910     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2911                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2912     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2913                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2914 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2915                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2916                         die "ERROR: libx264 version must be >= 0.115."; }
2917 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2918 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2919 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2920                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2921                         die "ERROR: openal not found"; } &&
2922                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2923                         die "ERROR: openal version must be 1.1 or compatible"; }
2924 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2925
2926 SDL_CONFIG="${cross_prefix}sdl-config"
2927 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2928     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2929     enable sdl &&
2930     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2931 else
2932   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2933     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2934     sdl_libs=$("${SDL_CONFIG}" --libs)
2935     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2936     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2937     enable sdl &&
2938     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2939   fi
2940 fi
2941 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2942
2943 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2944
2945 check_header linux/fb.h
2946 check_header linux/videodev.h
2947 check_header linux/videodev2.h
2948 check_header sys/videoio.h
2949
2950 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2951 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2952 # w32api 3.12 had it defined wrong
2953 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2954
2955 check_type "dshow.h" IBaseFilter
2956
2957 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2958 { check_header dev/bktr/ioctl_meteor.h &&
2959   check_header dev/bktr/ioctl_bt848.h; } ||
2960 { check_header machine/ioctl_meteor.h &&
2961   check_header machine/ioctl_bt848.h; } ||
2962 { check_header dev/video/meteor/ioctl_meteor.h &&
2963   check_header dev/video/bktr/ioctl_bt848.h; } ||
2964 check_header dev/ic/bt8xx.h
2965
2966 check_header sndio.h
2967 if check_struct sys/soundcard.h audio_buf_info bytes; then
2968     enable_safe sys/soundcard.h
2969 else
2970     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2971     #include <sys/soundcard.h>
2972     audio_buf_info abc;
2973 EOF
2974 fi
2975 check_header soundcard.h
2976
2977 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2978
2979 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
2980
2981 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2982
2983 enabled x11grab                         &&
2984 check_header X11/Xlib.h                 &&
2985 check_header X11/extensions/XShm.h      &&
2986 check_header X11/extensions/Xfixes.h    &&
2987 check_func XOpenDisplay -lX11           &&
2988 check_func XShmCreateImage -lX11 -lXext &&
2989 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2990
2991 if ! disabled vaapi; then
2992     check_lib va/va.h vaInitialize -lva && {
2993         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2994         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2995     } || disable vaapi
2996 fi
2997
2998 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2999 check_cpp_condition \
3000     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3001     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3002       disable vdpau; }
3003 fi
3004
3005 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3006
3007 # add some useful compiler flags if supported
3008 check_cflags -Wdeclaration-after-statement
3009 check_cflags -Wall
3010 check_cflags -Wno-parentheses
3011 check_cflags -Wno-switch
3012 check_cflags -Wno-format-zero-length
3013 check_cflags -Wdisabled-optimization
3014 check_cflags -Wpointer-arith
3015 check_cflags -Wredundant-decls
3016 check_cflags -Wno-pointer-sign
3017 check_cflags -Wcast-qual
3018 check_cflags -Wwrite-strings
3019 check_cflags -Wtype-limits
3020 check_cflags -Wundef
3021 check_cflags -Wmissing-prototypes
3022 check_cflags -Wno-pointer-to-int-cast
3023 enabled extra_warnings && check_cflags -Winline
3024
3025 # add some linker flags
3026 check_ldflags -Wl,--warn-common
3027 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3028 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3029
3030 echo "X{};" > $TMPV
3031 if test_ldflags -Wl,--version-script,$TMPV; then
3032     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3033     check_cc <<EOF && enable symver_asm_label
3034 void ff_foo(void) __asm__ ("av_foo@VERSION");
3035 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3036 EOF
3037     check_cc <<EOF && enable symver_gnu_asm
3038 __asm__(".symver ff_foo,av_foo@VERSION");
3039 void ff_foo(void) {}
3040 EOF
3041 fi
3042
3043 if [ -n "$optflags" ]; then
3044     add_cflags $optflags
3045 elif enabled small; then
3046     add_cflags $size_cflags
3047 elif enabled optimizations; then
3048     add_cflags $speed_cflags
3049 else
3050     add_cflags $noopt_cflags
3051 fi
3052 check_cflags -fno-math-errno
3053 check_cflags -fno-signed-zeros
3054
3055 if enabled icc; then
3056     # Just warnings, no remarks
3057     check_cflags -w1
3058     # -wd: Disable following warnings
3059     # 144, 167, 556: -Wno-pointer-sign
3060     # 1292: attribute "foo" ignored
3061     # 10006: ignoring unknown option -fno-signed-zeros
3062     # 10148: ignoring unknown option -Wno-parentheses
3063     # 10156: ignoring option '-W'; no argument required
3064     check_cflags -wd144,167,556,1292,10006,10148,10156
3065     # 11030: Warning unknown option --as-needed
3066     # 10156: ignoring option '-export'; no argument required
3067     check_ldflags -wd10156,11030
3068     # Allow to compile with optimizations
3069     check_ldflags -march=$cpu
3070     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3071     enable ebp_available
3072     if enabled x86_32; then
3073         test ${icc_version%%.*} -ge 11 && \
3074             check_cflags -falign-stack=maintain-16-byte || \
3075             disable aligned_stack
3076     fi
3077 elif enabled ccc; then
3078     # disable some annoying warnings
3079     add_cflags -msg_disable cvtu32to64
3080     add_cflags -msg_disable embedcomment
3081     add_cflags -msg_disable needconstext
3082     add_cflags -msg_disable nomainieee
3083     add_cflags -msg_disable ptrmismatch1
3084     add_cflags -msg_disable unreachcode
3085 elif enabled gcc; then
3086     check_cflags -fno-tree-vectorize
3087     check_cflags -Werror=implicit-function-declaration
3088     check_cflags -Werror=missing-prototypes
3089 elif enabled llvm_gcc; then
3090     check_cflags -mllvm -stack-alignment=16
3091 elif enabled clang; then
3092     check_cflags -mllvm -stack-alignment=16
3093     check_cflags -Qunused-arguments
3094 elif enabled armcc; then
3095     # 2523: use of inline assembler is deprecated
3096     add_cflags -W${armcc_opt},--diag_suppress=2523
3097     add_cflags -W${armcc_opt},--diag_suppress=1207
3098     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3099     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3100     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3101     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3102 elif enabled tms470; then
3103     add_cflags -pds=824 -pds=837
3104 elif enabled pathscale; then
3105     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3106 fi
3107
3108 enabled_any $THREADS_LIST      && enable threads
3109
3110 check_deps $CONFIG_LIST       \
3111            $CONFIG_EXTRA      \
3112            $HAVE_LIST         \
3113            $DECODER_LIST      \
3114            $ENCODER_LIST      \
3115            $HWACCEL_LIST      \
3116            $PARSER_LIST       \
3117            $BSF_LIST          \
3118            $DEMUXER_LIST      \
3119            $MUXER_LIST        \
3120            $FILTER_LIST       \
3121            $INDEV_LIST        \
3122            $OUTDEV_LIST       \
3123            $PROTOCOL_LIST     \
3124            $ACODEC_TESTS      \
3125            $VCODEC_TESTS      \
3126            $LAVF_TESTS        \
3127            $LAVFI_TESTS       \
3128            $SEEK_TESTS        \
3129
3130 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3131
3132 if test $target_os == "haiku"; then
3133     disable memalign
3134     disable posix_memalign
3135 fi
3136
3137 ! enabled_any memalign posix_memalign malloc_aligned &&
3138     enabled_any $need_memalign && enable memalign_hack
3139
3140 echo "install prefix            $prefix"
3141 echo "source path               $source_path"
3142 echo "C compiler                $cc"
3143 echo "ARCH                      $arch ($cpu)"
3144 if test "$build_suffix" != ""; then
3145     echo "build suffix              $build_suffix"
3146 fi
3147 if test "$extra_version" != ""; then
3148     echo "version string suffix     $extra_version"
3149 fi
3150 echo "big-endian                ${bigendian-no}"
3151 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3152 if enabled x86; then
3153     echo "${yasmexe}                      ${yasm-no}"
3154     echo "MMX enabled               ${mmx-no}"
3155     echo "MMX2 enabled              ${mmx2-no}"
3156     echo "3DNow! enabled            ${amd3dnow-no}"
3157     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3158     echo "SSE enabled               ${sse-no}"
3159     echo "SSSE3 enabled             ${ssse3-no}"
3160     echo "AVX enabled               ${avx-no}"
3161     echo "CMOV enabled              ${cmov-no}"
3162     echo "CMOV is fast              ${fast_cmov-no}"
3163     echo "EBX available             ${ebx_available-no}"
3164     echo "EBP available             ${ebp_available-no}"
3165 fi
3166 if enabled arm; then
3167     echo "ARMv5TE enabled           ${armv5te-no}"
3168     echo "ARMv6 enabled             ${armv6-no}"
3169     echo "ARMv6T2 enabled           ${armv6t2-no}"
3170     echo "ARM VFP enabled           ${armvfp-no}"
3171     echo "IWMMXT enabled            ${iwmmxt-no}"
3172     echo "NEON enabled              ${neon-no}"
3173 fi
3174 if enabled mips; then
3175     echo "MMI enabled               ${mmi-no}"
3176 fi
3177 if enabled ppc; then
3178     echo "AltiVec enabled           ${altivec-no}"
3179     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3180     echo "dcbzl available           ${dcbzl-no}"
3181 fi
3182 if enabled sparc; then
3183     echo "VIS enabled               ${vis-no}"
3184 fi
3185 echo "debug symbols             ${debug-no}"
3186 echo "strip symbols             ${stripping-no}"
3187 echo "optimize for size         ${small-no}"
3188 echo "optimizations             ${optimizations-no}"
3189 echo "static                    ${static-no}"
3190 echo "shared                    ${shared-no}"
3191 echo "postprocessing support    ${postproc-no}"
3192 echo "new filter support        ${avfilter-no}"
3193 echo "network support           ${network-no}"
3194 echo "threading support         ${thread_type-no}"
3195 echo "SDL support               ${sdl-no}"
3196 echo "Sun medialib support      ${mlib-no}"
3197 echo "libdxva2 enabled          ${dxva2-no}"
3198 echo "libva enabled             ${vaapi-no}"
3199 echo "libvdpau enabled          ${vdpau-no}"
3200 echo "AVISynth enabled          ${avisynth-no}"
3201 echo "libcelt enabled           ${libcelt-no}"
3202 echo "frei0r enabled            ${frei0r-no}"
3203 echo "libdc1394 support         ${libdc1394-no}"
3204 echo "libdirac enabled          ${libdirac-no}"
3205 echo "libfaac enabled           ${libfaac-no}"
3206 echo "libgsm enabled            ${libgsm-no}"
3207 echo "libmp3lame enabled        ${libmp3lame-no}"
3208 echo "libnut enabled            ${libnut-no}"
3209 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3210 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3211 echo "libopencv support         ${libopencv-no}"
3212 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3213 echo "librtmp enabled           ${librtmp-no}"
3214 echo "libschroedinger enabled   ${libschroedinger-no}"
3215 echo "libspeex enabled          ${libspeex-no}"
3216 echo "libtheora enabled         ${libtheora-no}"
3217 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3218 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3219 echo "libvorbis enabled         ${libvorbis-no}"
3220 echo "libvpx enabled            ${libvpx-no}"
3221 echo "libx264 enabled           ${libx264-no}"
3222 echo "libxavs enabled           ${libxavs-no}"
3223 echo "libxvid enabled           ${libxvid-no}"
3224 echo "openal enabled            ${openal-no}"
3225 echo "zlib enabled              ${zlib-no}"
3226 echo "bzlib enabled             ${bzlib-no}"
3227 echo
3228
3229 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3230     echo "Enabled ${type}s:"
3231     eval list=\$$(toupper $type)_LIST
3232     print_enabled '_*' $list | sort | pr -r -3 -t
3233     echo
3234 done
3235
3236 license="LGPL version 2.1 or later"
3237 if enabled nonfree; then
3238     license="nonfree and unredistributable"
3239 elif enabled gplv3; then
3240     license="GPL version 3 or later"
3241 elif enabled lgplv3; then
3242     license="LGPL version 3 or later"
3243 elif enabled gpl; then
3244     license="GPL version 2 or later"
3245 fi
3246
3247 echo "License: $license"
3248
3249 echo "Creating config.mak and config.h..."
3250
3251 test -e Makefile || $ln_s "$source_path/Makefile" .
3252
3253 enabled stripping || strip="echo skipping strip"
3254
3255 config_files="$TMPH config.mak"
3256
3257 cat > config.mak <<EOF
3258 # Automatically generated by configure - do not modify!
3259 ifndef FFMPEG_CONFIG_MAK
3260 FFMPEG_CONFIG_MAK=1
3261 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3262 prefix=$prefix
3263 LIBDIR=\$(DESTDIR)$libdir
3264 SHLIBDIR=\$(DESTDIR)$shlibdir
3265 INCDIR=\$(DESTDIR)$incdir
3266 BINDIR=\$(DESTDIR)$bindir
3267 DATADIR=\$(DESTDIR)$datadir
3268 MANDIR=\$(DESTDIR)$mandir
3269 SRC_PATH=$source_path
3270 ifndef MAIN_MAKEFILE
3271 SRC_PATH:=\$(SRC_PATH:.%=..%)
3272 endif
3273 CC_IDENT=$cc_ident
3274 ARCH=$arch
3275 CC=$cc
3276 AS=$as
3277 LD=$ld
3278 DEPCC=$dep_cc
3279 YASM=$yasmexe
3280 YASMDEP=$yasmexe
3281 AR=$ar
3282 RANLIB=$ranlib
3283 CP=cp -p
3284 LN_S=$ln_s
3285 STRIP=$strip
3286 CPPFLAGS=$CPPFLAGS
3287 CFLAGS=$CFLAGS
3288 ASFLAGS=$ASFLAGS
3289 AS_O=$CC_O
3290 CC_O=$CC_O
3291 LDFLAGS=$LDFLAGS
3292 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3293 SHFLAGS=$SHFLAGS
3294 YASMFLAGS=$YASMFLAGS
3295 BUILDSUF=$build_suffix
3296 FULLNAME=$FULLNAME
3297 LIBPREF=$LIBPREF
3298 LIBSUF=$LIBSUF
3299 LIBNAME=$LIBNAME
3300 SLIBPREF=$SLIBPREF
3301 SLIBSUF=$SLIBSUF
3302 EXESUF=$EXESUF
3303 EXTRA_VERSION=$extra_version
3304 DEPFLAGS=$DEPFLAGS
3305 CCDEP=$CCDEP
3306 ASDEP=$ASDEP
3307 CC_DEPFLAGS=$CC_DEPFLAGS
3308 AS_DEPFLAGS=$AS_DEPFLAGS
3309 HOSTCC=$host_cc
3310 HOSTCFLAGS=$host_cflags
3311 HOSTEXESUF=$HOSTEXESUF
3312 HOSTLDFLAGS=$host_ldflags
3313 HOSTLIBS=$host_libs
3314 TARGET_EXEC=$target_exec
3315 TARGET_PATH=$target_path
3316 SDL_LIBS=$sdl_libs
3317 SDL_CFLAGS=$sdl_cflags
3318 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3319 EXTRALIBS=$extralibs
3320 INSTALL=$install
3321 LIBTARGET=${LIBTARGET}
3322 SLIBNAME=${SLIBNAME}
3323 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3324 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3325 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3326 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3327 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3328 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3329 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3330 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3331 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3332 EOF
3333
3334 get_version(){
3335     name=$1
3336     file=$source_path/$2
3337     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3338     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3339     lcname=$(tolower $name)
3340     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3341     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3342 }
3343
3344 get_version LIBSWSCALE  libswscale/swscale.h
3345 get_version LIBPOSTPROC libpostproc/postprocess.h
3346 get_version LIBAVCODEC  libavcodec/version.h
3347 get_version LIBAVDEVICE libavdevice/avdevice.h
3348 get_version LIBAVFORMAT libavformat/version.h
3349 get_version LIBAVUTIL   libavutil/avutil.h
3350 get_version LIBAVFILTER libavfilter/avfilter.h
3351
3352 cat > $TMPH <<EOF
3353 /* Automatically generated by configure - do not modify! */
3354 #ifndef FFMPEG_CONFIG_H
3355 #define FFMPEG_CONFIG_H
3356 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3357 #define FFMPEG_LICENSE "$(c_escape $license)"
3358 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3359 #define CC_TYPE "$cc_type"
3360 #define CC_VERSION $cc_version
3361 #define restrict $_restrict
3362 #define EXTERN_PREFIX "${extern_prefix}"
3363 #define EXTERN_ASM ${extern_prefix}
3364 #define SLIBSUF "$SLIBSUF"
3365 EOF
3366
3367 test -n "$malloc_prefix" &&
3368     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3369
3370 if enabled small || disabled optimizations; then
3371     echo "#undef  av_always_inline"  >> $TMPH
3372     if enabled small; then
3373         echo "#define av_always_inline inline"  >> $TMPH
3374     else
3375         echo "#define av_always_inline av_unused"  >> $TMPH
3376     fi
3377 fi
3378
3379 if enabled yasm; then
3380     append config_files $TMPASM
3381     printf '' >$TMPASM
3382 fi
3383
3384 print_config ARCH_   "$config_files" $ARCH_LIST
3385 print_config HAVE_   "$config_files" $HAVE_LIST
3386 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3387                                      $CONFIG_EXTRA      \
3388                                      $DECODER_LIST      \
3389                                      $ENCODER_LIST      \
3390                                      $HWACCEL_LIST      \
3391                                      $PARSER_LIST       \
3392                                      $BSF_LIST          \
3393                                      $DEMUXER_LIST      \
3394                                      $MUXER_LIST        \
3395                                      $FILTER_LIST       \
3396                                      $PROTOCOL_LIST     \
3397                                      $INDEV_LIST        \
3398                                      $OUTDEV_LIST       \
3399
3400 cat >>config.mak <<EOF
3401 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3402 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3403 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3404 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3405 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3406 EOF
3407
3408 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3409 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3410
3411 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3412 cp_if_changed $TMPH config.h
3413 touch .config
3414
3415 enabled yasm && cp_if_changed $TMPASM config.asm
3416
3417 cat > $TMPH <<EOF
3418 /* Generated by ffconf */
3419 #ifndef AVUTIL_AVCONFIG_H
3420 #define AVUTIL_AVCONFIG_H
3421 EOF
3422
3423 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3424
3425 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3426
3427 cp_if_changed $TMPH libavutil/avconfig.h
3428
3429 test -n "$WARNINGS" && printf "\n$WARNINGS"
3430
3431 # build pkg-config files
3432
3433 pkgconfig_generate(){
3434 name=$1
3435 shortname=${name#lib}${build_suffix}
3436 comment=$2
3437 version=$3
3438 libs=$4
3439 requires=$5
3440 enabled ${name#lib} || return 0
3441 mkdir -p $name
3442 cat <<EOF > $name/$name.pc
3443 prefix=$prefix
3444 exec_prefix=\${prefix}
3445 libdir=$libdir
3446 includedir=$incdir
3447
3448 Name: $name
3449 Description: $comment
3450 Version: $version
3451 Requires: $(enabled shared || echo $requires)
3452 Requires.private: $(enabled shared && echo $requires)
3453 Conflicts:
3454 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3455 Libs.private: $(enabled shared && echo $libs)
3456 Cflags: -I\${includedir}
3457 EOF
3458 cat <<EOF > $name/$name-uninstalled.pc
3459 prefix=
3460 exec_prefix=
3461 libdir=\${pcfiledir}
3462 includedir=${source_path}
3463
3464 Name: $name
3465 Description: $comment
3466 Version: $version
3467 Requires: $requires
3468 Conflicts:
3469 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3470 Cflags: -I\${includedir}
3471 EOF
3472 }
3473
3474 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3475 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3476 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3477 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3478 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3479 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3480 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"