Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-postproc       disable libpostproc build
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code [autodetect]
110   --enable-vdpau           enable VDPAU code [autodetect]
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
115   --disable-everything     disable all components listed below
116   --disable-encoder=NAME   disable encoder NAME
117   --enable-encoder=NAME    enable encoder NAME
118   --disable-encoders       disable all encoders
119   --disable-decoder=NAME   disable decoder NAME
120   --enable-decoder=NAME    enable decoder NAME
121   --disable-decoders       disable all decoders
122   --disable-hwaccel=NAME   disable hwaccel NAME
123   --enable-hwaccel=NAME    enable hwaccel NAME
124   --disable-hwaccels       disable all hwaccels
125   --disable-muxer=NAME     disable muxer NAME
126   --enable-muxer=NAME      enable muxer NAME
127   --disable-muxers         disable all muxers
128   --disable-demuxer=NAME   disable demuxer NAME
129   --enable-demuxer=NAME    enable demuxer NAME
130   --disable-demuxers       disable all demuxers
131   --enable-parser=NAME     enable parser NAME
132   --disable-parser=NAME    disable parser NAME
133   --disable-parsers        disable all parsers
134   --enable-bsf=NAME        enable bitstream filter NAME
135   --disable-bsf=NAME       disable bitstream filter NAME
136   --disable-bsfs           disable all bitstream filters
137   --enable-protocol=NAME   enable protocol NAME
138   --disable-protocol=NAME  disable protocol NAME
139   --disable-protocols      disable all protocols
140   --disable-indev=NAME     disable input device NAME
141   --disable-outdev=NAME    disable output device NAME
142   --disable-indevs         disable input devices
143   --disable-outdevs        disable output devices
144   --disable-devices        disable all devices
145   --enable-filter=NAME     enable filter NAME
146   --disable-filter=NAME    disable filter NAME
147   --disable-filters        disable all filters
148   --list-decoders          show all available decoders
149   --list-encoders          show all available encoders
150   --list-hwaccels          show all available hardware accelerators
151   --list-muxers            show all available muxers
152   --list-demuxers          show all available demuxers
153   --list-parsers           show all available parsers
154   --list-protocols         show all available protocols
155   --list-bsfs              show all available bitstream filters
156   --list-indevs            show all available input devices
157   --list-outdevs           show all available output devices
158   --list-filters           show all available filters
159
160 External library support:
161   --enable-avisynth        enable reading of AVISynth script files [no]
162   --enable-bzlib           enable bzlib [autodetect]
163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
164   --enable-frei0r          enable frei0r video filtering
165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167   --enable-libopencv       enable video filtering via libopencv [no]
168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
169                            and libraw1394 [no]
170   --enable-libdirac        enable Dirac support via libdirac [no]
171   --enable-libfaac         enable FAAC support via libfaac [no]
172   --enable-libfreetype     enable libfreetype [no]
173   --enable-libgsm          enable GSM support via libgsm [no]
174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
175   --enable-libnut          enable NUT (de)muxing via libnut,
176                            native (de)muxer exists [no]
177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
180   --enable-libspeex        enable Speex decoding via libspeex [no]
181   --enable-libtheora       enable Theora encoding via libtheora [no]
182   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
183   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
185                            native implementation exists [no]
186   --enable-libvpx          enable VP8 support via libvpx [no]
187   --enable-libx264         enable H.264 encoding via x264 [no]
188   --enable-libxavs         enable AVS encoding via xavs [no]
189   --enable-libxvid         enable Xvid encoding via xvidcore,
190                            native MPEG-4/Xvid encoder exists [no]
191   --enable-openal          enable OpenAL 1.1 capture support [no]
192   --enable-mlib            enable Sun medialib [no]
193   --enable-zlib            enable zlib [autodetect]
194
195 Advanced options (experts only):
196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
197   --enable-cross-compile   assume a cross-compiler is used
198   --sysroot=PATH           root of cross-build tree
199   --sysinclude=PATH        location of cross-build system headers
200   --target-os=OS           compiler targets OS [$target_os]
201   --target-exec=CMD        command to run executables on target
202   --target-path=DIR        path to view of build directory on target
203   --nm=NM                  use nm tool
204   --ar=AR                  use archive tool AR [$ar_default]
205   --as=AS                  use assembler AS [$as_default]
206   --cc=CC                  use C compiler CC [$cc_default]
207   --ld=LD                  use linker LD
208   --host-cc=HOSTCC         use host C compiler HOSTCC
209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
211   --host-libs=HLIBS        use libs HLIBS when linking for host
212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
215   --extra-version=STRING   version string suffix []
216   --build-suffix=SUFFIX    library name suffix []
217   --arch=ARCH              select architecture [$arch]
218   --cpu=CPU                select the minimum required CPU (affects
219                            instruction selection, may crash on older CPUs)
220   --disable-asm            disable all assembler optimizations
221   --disable-altivec        disable AltiVec optimizations
222   --disable-amd3dnow       disable 3DNow! optimizations
223   --disable-amd3dnowext    disable 3DNow! extended optimizations
224   --disable-mmx            disable MMX optimizations
225   --disable-mmx2           disable MMX2 optimizations
226   --disable-sse            disable SSE optimizations
227   --disable-ssse3          disable SSSE3 optimizations
228   --disable-avx            disable AVX optimizations
229   --disable-armv5te        disable armv5te optimizations
230   --disable-armv6          disable armv6 optimizations
231   --disable-armv6t2        disable armv6t2 optimizations
232   --disable-armvfp         disable ARM VFP optimizations
233   --disable-iwmmxt         disable iwmmxt optimizations
234   --disable-mmi            disable MMI optimizations
235   --disable-neon           disable neon optimizations
236   --disable-vis            disable VIS optimizations
237   --disable-yasm           disable use of yasm assembler
238   --enable-pic             build position-independent code
239   --malloc-prefix=PFX      prefix malloc and related names with PFX
240   --enable-sram            allow use of on-chip SRAM
241   --disable-symver         disable symbol versioning
242   --optflags               override optimization-related compiler flags
243
244 Developer options (useful when working on FFmpeg itself):
245   --disable-debug          disable debugging symbols
246   --enable-debug=LEVEL     set the debug level [$debuglevel]
247   --disable-optimizations  disable compiler optimizations
248   --enable-extra-warnings  enable more compiler warnings
249   --disable-stripping      disable stripping of executables and shared libraries
250   --samples=PATH           location of test samples for FATE, if not set use
251                            \$FATE_SAMPLES at make invocation time.
252
253 NOTE: Object files are built at the place where configure is launched.
254 EOF
255   exit 0
256 }
257
258 quotes='""'
259
260 log(){
261     echo "$@" >> $logfile
262 }
263
264 log_file(){
265     log BEGIN $1
266     pr -n -t $1 >> $logfile
267     log END $1
268 }
269
270 echolog(){
271     log "$@"
272     echo "$@"
273 }
274
275 warn(){
276     log "WARNING: $*"
277     WARNINGS="${WARNINGS}WARNING: $*\n"
278 }
279
280 die(){
281     echolog "$@"
282     cat <<EOF
283
284 If you think configure made a mistake, make sure you are using the latest
285 version from Git.  If the latest version fails, report the problem to the
286 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
287 EOF
288     if disabled logging; then
289         cat <<EOF
290 Rerun configure with logging enabled (do not use --disable-logging), and
291 include the log this produces with your report.
292 EOF
293     else
294 cat <<EOF
295 Include the log file "$logfile" produced by configure as this will help
296 solving the problem.
297 EOF
298     fi
299     exit 1
300 }
301
302 # Avoid locale weirdness, besides we really just want to translate ASCII.
303 toupper(){
304     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
305 }
306
307 tolower(){
308     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
309 }
310
311 c_escape(){
312     echo "$*" | sed 's/["\\]/\\\0/g'
313 }
314
315 sh_quote(){
316     v=$(echo "$1" | sed "s/'/'\\\\''/g")
317     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
318     echo "$v"
319 }
320
321 cleanws(){
322     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
323 }
324
325 filter(){
326     pat=$1
327     shift
328     for v; do
329         eval "case $v in $pat) echo $v ;; esac"
330     done
331 }
332
333 filter_out(){
334     pat=$1
335     shift
336     for v; do
337         eval "case $v in $pat) ;; *) echo $v ;; esac"
338     done
339 }
340
341 map(){
342     m=$1
343     shift
344     for v; do eval $m; done
345 }
346
347 set_all(){
348     value=$1
349     shift
350     for var in $*; do
351         eval $var=$value
352     done
353 }
354
355 set_weak(){
356     value=$1
357     shift
358     for var; do
359         eval : \${$var:=$value}
360     done
361 }
362
363 set_safe(){
364     var=$1
365     shift
366     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
367 }
368
369 get_safe(){
370     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
371 }
372
373 pushvar(){
374     for var in $*; do
375         eval level=\${${var}_level:=0}
376         eval ${var}_${level}="\$$var"
377         eval ${var}_level=$(($level+1))
378     done
379 }
380
381 popvar(){
382     for var in $*; do
383         eval level=\${${var}_level:-0}
384         test $level = 0 && continue
385         eval level=$(($level-1))
386         eval $var="\${${var}_${level}}"
387         eval ${var}_level=$level
388         eval unset ${var}_${level}
389     done
390 }
391
392 enable(){
393     set_all yes $*
394 }
395
396 disable(){
397     set_all no $*
398 }
399
400 enable_weak(){
401     set_weak yes $*
402 }
403
404 disable_weak(){
405     set_weak no $*
406 }
407
408 enable_safe(){
409     for var; do
410         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
411     done
412 }
413
414 disable_safe(){
415     for var; do
416         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
417     done
418 }
419
420 do_enable_deep(){
421     for var; do
422         enabled $var && continue
423         eval sel="\$${var}_select"
424         eval sgs="\$${var}_suggest"
425         pushvar var sgs
426         enable_deep $sel
427         popvar sgs
428         enable_deep_weak $sgs
429         popvar var
430     done
431 }
432
433 enable_deep(){
434     do_enable_deep $*
435     enable $*
436 }
437
438 enable_deep_weak(){
439     do_enable_deep $*
440     enable_weak $*
441 }
442
443 enabled(){
444     test "${1#!}" = "$1" && op== || op=!=
445     eval test "x\$${1#!}" $op "xyes"
446 }
447
448 disabled(){
449     test "${1#!}" = "$1" && op== || op=!=
450     eval test "x\$${1#!}" $op "xno"
451 }
452
453 enabled_all(){
454     for opt; do
455         enabled $opt || return 1
456     done
457 }
458
459 disabled_all(){
460     for opt; do
461         disabled $opt || return 1
462     done
463 }
464
465 enabled_any(){
466     for opt; do
467         enabled $opt && return 0
468     done
469 }
470
471 disabled_any(){
472     for opt; do
473         disabled $opt && return 0
474     done
475     return 1
476 }
477
478 set_default(){
479     for opt; do
480         eval : \${$opt:=\$${opt}_default}
481     done
482 }
483
484 is_in(){
485     value=$1
486     shift
487     for var in $*; do
488         [ $var = $value ] && return 0
489     done
490     return 1
491 }
492
493 check_deps(){
494     for cfg; do
495         cfg="${cfg#!}"
496         enabled ${cfg}_checking && die "Circular dependency for $cfg."
497         disabled ${cfg}_checking && continue
498         enable ${cfg}_checking
499
500         eval dep_all="\$${cfg}_deps"
501         eval dep_any="\$${cfg}_deps_any"
502         eval dep_sel="\$${cfg}_select"
503         eval dep_sgs="\$${cfg}_suggest"
504         eval dep_ifa="\$${cfg}_if"
505         eval dep_ifn="\$${cfg}_if_any"
506
507         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
508         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
509         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
510
511         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
512         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
513         enabled_all  $dep_all || disable $cfg
514         enabled_any  $dep_any || disable $cfg
515         disabled_any $dep_sel && disable $cfg
516
517         if enabled $cfg; then
518             eval dep_extralibs="\$${cfg}_extralibs"
519             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
520             enable_deep $dep_sel
521             enable_deep_weak $dep_sgs
522         fi
523
524         disable ${cfg}_checking
525     done
526 }
527
528 print_config_h(){
529     enabled $1 && v=1 || v=0
530     echo "#define $2 $v"
531 }
532
533 print_config_mak(){
534     enabled $1 && v= || v=!
535     echo "$v$2=yes"
536 }
537
538 print_config_asm(){
539     enabled $1 && echo "%define $2"
540 }
541
542 print_config(){
543     pfx=$1
544     files=$2
545     shift 2
546     for cfg; do
547         ucname="$(toupper $cfg)"
548         for f in $files; do
549             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
550         done
551     done
552 }
553
554 print_enabled(){
555     test "$1" = -n && end=" " && shift || end="\n"
556     suf=$1
557     shift
558     for v; do
559         enabled $v && printf "%s$end" ${v%$suf};
560     done
561 }
562
563 append(){
564     var=$1
565     shift
566     eval "$var=\"\$$var $*\""
567 }
568
569 prepend(){
570     var=$1
571     shift
572     eval "$var=\"$* \$$var\""
573 }
574
575 add_cppflags(){
576     append CPPFLAGS $($filter_cppflags "$@")
577 }
578
579 add_cflags(){
580     append CFLAGS $($filter_cflags "$@")
581 }
582
583 add_asflags(){
584     append ASFLAGS $($filter_asflags "$@")
585 }
586
587 add_ldflags(){
588     append LDFLAGS "$@"
589 }
590
591 add_extralibs(){
592     prepend extralibs "$@"
593 }
594
595 check_cmd(){
596     log "$@"
597     "$@" >> $logfile 2>&1
598 }
599
600 check_cc(){
601     log check_cc "$@"
602     cat > $TMPC
603     log_file $TMPC
604     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
605 }
606
607 check_cpp(){
608     log check_cpp "$@"
609     cat > $TMPC
610     log_file $TMPC
611     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
612 }
613
614 check_as(){
615     log check_as "$@"
616     cat > $TMPC
617     log_file $TMPC
618     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
619 }
620
621 check_asm(){
622     log check_asm "$@"
623     name="$1"
624     code="$2"
625     shift 2
626     disable $name
627     check_as "$@" <<EOF && enable $name
628 void foo(void){ __asm__ volatile($code); }
629 EOF
630 }
631
632 check_yasm(){
633     log check_yasm "$@"
634     echo "$1" > $TMPS
635     log_file $TMPS
636     shift 1
637     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
638 }
639
640 check_ld(){
641     log check_ld "$@"
642     flags=''
643     libs=''
644     for f; do
645         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
646     done
647     check_cc $($filter_cflags $flags) || return
648     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
649 }
650
651 check_cppflags(){
652     log check_cppflags "$@"
653     set -- $($filter_cppflags "$@")
654     check_cc "$@" <<EOF && append CPPFLAGS "$@"
655 int x;
656 EOF
657 }
658
659 check_cflags(){
660     log check_cflags "$@"
661     set -- $($filter_cflags "$@")
662     check_cc "$@" <<EOF && append CFLAGS "$@"
663 int x;
664 EOF
665 }
666
667 test_ldflags(){
668     log test_ldflags "$@"
669     check_ld "$@" <<EOF
670 int main(void){ return 0; }
671 EOF
672 }
673
674 check_ldflags(){
675     log check_ldflags "$@"
676     test_ldflags "$@" && add_ldflags "$@"
677 }
678
679 check_header(){
680     log check_header "$@"
681     header=$1
682     shift
683     disable_safe $header
684     check_cpp "$@" <<EOF && enable_safe $header
685 #include <$header>
686 int x;
687 EOF
688 }
689
690 check_func(){
691     log check_func "$@"
692     func=$1
693     shift
694     disable $func
695     check_ld "$@" <<EOF && enable $func
696 extern int $func();
697 int main(void){ $func(); }
698 EOF
699 }
700
701 check_mathfunc(){
702     log check_mathfunc "$@"
703     func=$1
704     shift
705     disable $func
706     check_ld "$@" <<EOF && enable $func
707 #include <math.h>
708 float foo(float f) { return $func(f); }
709 int main(void){ return 0; }
710 EOF
711 }
712
713 check_func_headers(){
714     log check_func_headers "$@"
715     headers=$1
716     funcs=$2
717     shift 2
718     {
719         for hdr in $headers; do
720             echo "#include <$hdr>"
721         done
722         for func in $funcs; do
723             echo "long check_$func(void) { return (long) $func; }"
724         done
725         echo "int main(void) { return 0; }"
726     } | check_ld "$@" && enable $funcs && enable_safe $headers
727 }
728
729 check_cpp_condition(){
730     log check_cpp_condition "$@"
731     header=$1
732     condition=$2
733     shift 2
734     check_cpp $($filter_cppflags "$@") <<EOF
735 #include <$header>
736 #if !($condition)
737 #error "unsatisfied condition: $condition"
738 #endif
739 EOF
740 }
741
742 check_lib(){
743     log check_lib "$@"
744     header="$1"
745     func="$2"
746     shift 2
747     check_header $header && check_func $func "$@" && add_extralibs "$@"
748 }
749
750 check_lib2(){
751     log check_lib2 "$@"
752     headers="$1"
753     funcs="$2"
754     shift 2
755     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
756 }
757
758 check_pkg_config(){
759     log check_pkg_config "$@"
760     pkg="$1"
761     headers="$2"
762     funcs="$3"
763     shift 3
764     $pkg_config --exists $pkg 2>/dev/null || return
765     pkg_cflags=$($pkg_config --cflags $pkg)
766     pkg_libs=$($pkg_config --libs $pkg)
767     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
768         set_safe ${pkg}_cflags $pkg_cflags   &&
769         set_safe ${pkg}_libs   $pkg_libs
770 }
771
772 check_exec(){
773     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
774 }
775
776 check_exec_crash(){
777     code=$(cat)
778
779     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
780     # are safe but may not be available everywhere.  Thus we use
781     # raise(SIGTERM) instead.  The check is run in a subshell so we
782     # can redirect the "Terminated" message from the shell.  SIGBUS
783     # is not defined by standard C so it is used conditionally.
784
785     (check_exec "$@") >> $logfile 2>&1 <<EOF
786 #include <signal.h>
787 static void sighandler(int sig){
788     raise(SIGTERM);
789 }
790 int main(void){
791     signal(SIGILL, sighandler);
792     signal(SIGFPE, sighandler);
793     signal(SIGSEGV, sighandler);
794 #ifdef SIGBUS
795     signal(SIGBUS, sighandler);
796 #endif
797     { $code }
798 }
799 EOF
800 }
801
802 check_type(){
803     log check_type "$@"
804     headers=$1
805     type=$2
806     shift 2
807     disable_safe "$type"
808     incs=""
809     for hdr in $headers; do
810         incs="$incs
811 #include <$hdr>"
812     done
813     check_cc "$@" <<EOF && enable_safe "$type"
814 $incs
815 $type v;
816 EOF
817 }
818
819 check_struct(){
820     log check_type "$@"
821     headers=$1
822     struct=$2
823     member=$3
824     shift 3
825     disable_safe "${struct}_${member}"
826     incs=""
827     for hdr in $headers; do
828         incs="$incs
829 #include <$hdr>"
830     done
831     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
832 $incs
833 const void *p = &(($struct *)0)->$member;
834 EOF
835 }
836
837 require(){
838     name="$1"
839     header="$2"
840     func="$3"
841     shift 3
842     check_lib $header $func "$@" || die "ERROR: $name not found"
843 }
844
845 require2(){
846     name="$1"
847     headers="$2"
848     func="$3"
849     shift 3
850     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
851 }
852
853 require_pkg_config(){
854     pkg="$1"
855     check_pkg_config "$@" || die "ERROR: $pkg not found"
856     add_cflags    $(get_safe ${pkg}_cflags)
857     add_extralibs $(get_safe ${pkg}_libs)
858 }
859
860 check_host_cc(){
861     log check_host_cc "$@"
862     cat > $TMPC
863     log_file $TMPC
864     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
865 }
866
867 check_host_cflags(){
868     log check_host_cflags "$@"
869     check_host_cc "$@" <<EOF && append host_cflags "$@"
870 int x;
871 EOF
872 }
873
874 apply(){
875     file=$1
876     shift
877     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
878 }
879
880 cp_if_changed(){
881     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
882     mkdir -p "$(dirname $2)"
883     cp -f "$1" "$2"
884 }
885
886 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
887 # system-dependent things.
888
889 COMPONENT_LIST="
890     bsfs
891     decoders
892     demuxers
893     encoders
894     filters
895     hwaccels
896     indevs
897     muxers
898     outdevs
899     parsers
900     protocols
901 "
902
903 CONFIG_LIST="
904     $COMPONENT_LIST
905     aandct
906     ac3dsp
907     avcodec
908     avdevice
909     avfilter
910     avformat
911     avisynth
912     bzlib
913     crystalhd
914     dct
915     doc
916     dwt
917     dxva2
918     fastdiv
919     ffmpeg
920     ffplay
921     ffprobe
922     ffserver
923     fft
924     frei0r
925     golomb
926     gpl
927     gray
928     h264dsp
929     h264pred
930     hardcoded_tables
931     huffman
932     libcelt
933     libdc1394
934     libdirac
935     libfaac
936     libfreetype
937     libgsm
938     libmp3lame
939     libnut
940     libopencore_amrnb
941     libopencore_amrwb
942     libopencv
943     libopenjpeg
944     librtmp
945     libschroedinger
946     libspeex
947     libtheora
948     libvo_aacenc
949     libvo_amrwbenc
950     libvorbis
951     libvpx
952     libx264
953     libxavs
954     libxvid
955     lpc
956     lsp
957     mdct
958     memalign_hack
959     mlib
960     mpegaudiodsp
961     network
962     nonfree
963     openal
964     pic
965     postproc
966     rdft
967     rtpdec
968     runtime_cpudetect
969     shared
970     sinewin
971     small
972     sram
973     static
974     swscale
975     swscale_alpha
976     thumb
977     vaapi
978     vdpau
979     version3
980     x11grab
981     zlib
982 "
983
984 THREADS_LIST='
985     pthreads
986     w32threads
987 '
988
989 ARCH_LIST='
990     alpha
991     arm
992     avr32
993     avr32_ap
994     avr32_uc
995     bfin
996     ia64
997     m68k
998     mips
999     mips64
1000     parisc
1001     ppc
1002     ppc64
1003     s390
1004     sh4
1005     sparc
1006     sparc64
1007     tomi
1008     x86
1009     x86_32
1010     x86_64
1011 '
1012
1013 ARCH_EXT_LIST='
1014     altivec
1015     amd3dnow
1016     amd3dnowext
1017     armv5te
1018     armv6
1019     armv6t2
1020     armvfp
1021     avx
1022     iwmmxt
1023     mmi
1024     mmx
1025     mmx2
1026     neon
1027     ppc4xx
1028     sse
1029     ssse3
1030     vfpv3
1031     vis
1032 '
1033
1034 HAVE_LIST_PUB='
1035     bigendian
1036     fast_unaligned
1037 '
1038
1039 HAVE_LIST="
1040     $ARCH_EXT_LIST
1041     $HAVE_LIST_PUB
1042     $THREADS_LIST
1043     aligned_stack
1044     alsa_asoundlib_h
1045     altivec_h
1046     arpa_inet_h
1047     attribute_may_alias
1048     attribute_packed
1049     bswap
1050     closesocket
1051     cmov
1052     dcbzl
1053     dev_bktr_ioctl_bt848_h
1054     dev_bktr_ioctl_meteor_h
1055     dev_ic_bt8xx_h
1056     dev_video_meteor_ioctl_meteor_h
1057     dev_video_bktr_ioctl_bt848_h
1058     dlfcn_h
1059     dlopen
1060     dos_paths
1061     ebp_available
1062     ebx_available
1063     exp2
1064     exp2f
1065     fast_64bit
1066     fast_clz
1067     fast_cmov
1068     fcntl
1069     fork
1070     getaddrinfo
1071     gethrtime
1072     GetProcessMemoryInfo
1073     GetProcessTimes
1074     getrusage
1075     gnu_as
1076     struct_rusage_ru_maxrss
1077     ibm_asm
1078     inet_aton
1079     inline_asm
1080     isatty
1081     kbhit
1082     ldbrx
1083     llrint
1084     llrintf
1085     local_aligned_16
1086     local_aligned_8
1087     localtime_r
1088     log2
1089     log2f
1090     loongson
1091     lrint
1092     lrintf
1093     lzo1x_999_compress
1094     machine_ioctl_bt848_h
1095     machine_ioctl_meteor_h
1096     malloc_h
1097     MapViewOfFile
1098     memalign
1099     mkstemp
1100     mmap
1101     posix_memalign
1102     round
1103     roundf
1104     sdl
1105     sdl_video_size
1106     setmode
1107     sndio_h
1108     socklen_t
1109     soundcard_h
1110     poll_h
1111     setrlimit
1112     strerror_r
1113     strptime
1114     strtok_r
1115     struct_addrinfo
1116     struct_ipv6_mreq
1117     struct_sockaddr_in6
1118     struct_sockaddr_sa_len
1119     struct_sockaddr_storage
1120     symver
1121     symver_gnu_asm
1122     symver_asm_label
1123     sys_mman_h
1124     sys_resource_h
1125     sys_select_h
1126     sys_soundcard_h
1127     sys_videoio_h
1128     termios_h
1129     threads
1130     trunc
1131     truncf
1132     vfp_args
1133     VirtualAlloc
1134     winsock2_h
1135     xform_asm
1136     xmm_clobbers
1137     yasm
1138 "
1139
1140 # options emitted with CONFIG_ prefix but not available on command line
1141 CONFIG_EXTRA="
1142     avutil
1143     gplv3
1144     lgplv3
1145 "
1146
1147 CMDLINE_SELECT="
1148     $ARCH_EXT_LIST
1149     $CONFIG_LIST
1150     $THREADS_LIST
1151     asm
1152     cross_compile
1153     debug
1154     extra_warnings
1155     logging
1156     optimizations
1157     stripping
1158     symver
1159     yasm
1160 "
1161
1162 PATHS_LIST='
1163     bindir
1164     datadir
1165     incdir
1166     libdir
1167     mandir
1168     prefix
1169     shlibdir
1170 '
1171
1172 CMDLINE_SET="
1173     $PATHS_LIST
1174     ar
1175     arch
1176     as
1177     build_suffix
1178     cc
1179     cpu
1180     cross_prefix
1181     dep_cc
1182     extra_version
1183     host_cc
1184     host_cflags
1185     host_ldflags
1186     host_libs
1187     host_os
1188     install
1189     ld
1190     logfile
1191     malloc_prefix
1192     nm
1193     optflags
1194     pkg_config
1195     samples
1196     strip
1197     sysinclude
1198     sysroot
1199     target_exec
1200     target_os
1201     target_path
1202 "
1203
1204 CMDLINE_APPEND="
1205     extra_cflags
1206 "
1207
1208 # code dependency declarations
1209
1210 # architecture extensions
1211
1212 armv5te_deps="arm"
1213 armv6_deps="arm"
1214 armv6t2_deps="arm"
1215 armvfp_deps="arm"
1216 iwmmxt_deps="arm"
1217 neon_deps="arm"
1218 vfpv3_deps="armvfp"
1219
1220 mmi_deps="mips"
1221
1222 altivec_deps="ppc"
1223 ppc4xx_deps="ppc"
1224
1225 vis_deps="sparc"
1226
1227 x86_64_suggest="cmov fast_cmov"
1228 amd3dnow_deps="mmx"
1229 amd3dnowext_deps="amd3dnow"
1230 mmx_deps="x86"
1231 mmx2_deps="mmx"
1232 sse_deps="mmx"
1233 ssse3_deps="sse"
1234 avx_deps="ssse3"
1235
1236 aligned_stack_if_any="ppc x86"
1237 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1238 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1239 fast_unaligned_if_any="armv6 ppc x86"
1240
1241 need_memalign="altivec neon sse"
1242 inline_asm_deps="!tms470"
1243
1244 symver_if_any="symver_asm_label symver_gnu_asm"
1245
1246 # subsystems
1247 dct_select="rdft"
1248 mdct_select="fft"
1249 rdft_select="fft"
1250 mpegaudiodsp_select="dct"
1251
1252 # decoders / encoders / hardware accelerators
1253 aac_decoder_select="mdct sinewin"
1254 aac_encoder_select="mdct sinewin"
1255 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1256 ac3_decoder_select="mdct ac3dsp ac3_parser"
1257 ac3_encoder_select="mdct ac3dsp"
1258 ac3_fixed_encoder_select="mdct ac3dsp"
1259 alac_encoder_select="lpc"
1260 amrnb_decoder_select="lsp"
1261 amrwb_decoder_select="lsp"
1262 atrac1_decoder_select="mdct sinewin"
1263 atrac3_decoder_select="mdct"
1264 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1265 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1266 cavs_decoder_select="golomb"
1267 cook_decoder_select="mdct sinewin"
1268 cscd_decoder_suggest="zlib"
1269 dca_decoder_select="mdct"
1270 dnxhd_encoder_select="aandct"
1271 dxa_decoder_select="zlib"
1272 eac3_decoder_select="ac3_decoder"
1273 eac3_encoder_select="mdct ac3dsp"
1274 eamad_decoder_select="aandct"
1275 eatgq_decoder_select="aandct"
1276 eatqi_decoder_select="aandct"
1277 ffv1_decoder_select="golomb"
1278 flac_decoder_select="golomb"
1279 flac_encoder_select="golomb lpc"
1280 flashsv_decoder_select="zlib"
1281 flashsv_encoder_select="zlib"
1282 flashsv2_encoder_select="zlib"
1283 flv_decoder_select="h263_decoder"
1284 flv_encoder_select="h263_encoder"
1285 fraps_decoder_select="huffman"
1286 h261_encoder_select="aandct"
1287 h263_decoder_select="h263_parser"
1288 h263_encoder_select="aandct"
1289 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1290 h263i_decoder_select="h263_decoder"
1291 h263p_encoder_select="h263_encoder"
1292 h264_decoder_select="golomb h264dsp h264pred"
1293 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1294 h264_dxva2_hwaccel_deps="dxva2api_h"
1295 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1296 h264_vaapi_hwaccel_select="vaapi"
1297 h264_vdpau_decoder_select="vdpau h264_decoder"
1298 imc_decoder_select="fft mdct sinewin"
1299 jpegls_decoder_select="golomb"
1300 jpegls_encoder_select="golomb"
1301 ljpeg_encoder_select="aandct"
1302 loco_decoder_select="golomb"
1303 mjpeg_encoder_select="aandct"
1304 mlp_decoder_select="mlp_parser"
1305 mp1_decoder_select="mpegaudiodsp"
1306 mp2_decoder_select="mpegaudiodsp"
1307 mp3adu_decoder_select="mpegaudiodsp"
1308 mp3_decoder_select="mpegaudiodsp"
1309 mp3on4_decoder_select="mpegaudiodsp"
1310 mp1float_decoder_select="mpegaudiodsp"
1311 mp2float_decoder_select="mpegaudiodsp"
1312 mp3adufloat_decoder_select="mpegaudiodsp"
1313 mp3float_decoder_select="mpegaudiodsp"
1314 mp3on4float_decoder_select="mpegaudiodsp"
1315 mpeg1video_encoder_select="aandct"
1316 mpeg2video_encoder_select="aandct"
1317 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1318 mpeg4_encoder_select="h263_encoder"
1319 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1320 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1321 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1322 mpeg2_crystalhd_decoder_select="crystalhd"
1323 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1324 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1325 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1326 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1327 mpeg4_crystalhd_decoder_select="crystalhd"
1328 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1329 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1330 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1331 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1332 msmpeg4_crystalhd_decoder_select="crystalhd"
1333 msmpeg4v1_decoder_select="h263_decoder"
1334 msmpeg4v1_encoder_select="h263_encoder"
1335 msmpeg4v2_decoder_select="h263_decoder"
1336 msmpeg4v2_encoder_select="h263_encoder"
1337 msmpeg4v3_decoder_select="h263_decoder"
1338 msmpeg4v3_encoder_select="h263_encoder"
1339 nellymoser_decoder_select="mdct sinewin"
1340 nellymoser_encoder_select="mdct sinewin"
1341 png_decoder_select="zlib"
1342 png_encoder_select="zlib"
1343 qcelp_decoder_select="lsp"
1344 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1345 ra_144_encoder_select="lpc"
1346 rv10_decoder_select="h263_decoder"
1347 rv10_encoder_select="h263_encoder"
1348 rv20_decoder_select="h263_decoder"
1349 rv20_encoder_select="h263_encoder"
1350 rv30_decoder_select="golomb h264pred"
1351 rv40_decoder_select="golomb h264pred"
1352 shorten_decoder_select="golomb"
1353 sipr_decoder_select="lsp"
1354 snow_decoder_select="dwt"
1355 snow_encoder_select="aandct dwt"
1356 sonic_decoder_select="golomb"
1357 sonic_encoder_select="golomb"
1358 sonic_ls_encoder_select="golomb"
1359 svq1_encoder_select="aandct"
1360 svq3_decoder_select="golomb h264dsp h264pred"
1361 svq3_decoder_suggest="zlib"
1362 theora_decoder_select="vp3_decoder"
1363 tiff_decoder_suggest="zlib"
1364 tiff_encoder_suggest="zlib"
1365 truehd_decoder_select="mlp_decoder"
1366 tscc_decoder_select="zlib"
1367 twinvq_decoder_select="mdct lsp sinewin"
1368 vc1_decoder_select="h263_decoder"
1369 vc1_crystalhd_decoder_select="crystalhd"
1370 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1371 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1372 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1373 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1374 vorbis_decoder_select="mdct"
1375 vorbis_encoder_select="mdct"
1376 vp6_decoder_select="huffman"
1377 vp6a_decoder_select="vp6_decoder"
1378 vp6f_decoder_select="vp6_decoder"
1379 vp8_decoder_select="h264pred"
1380 wmapro_decoder_select="mdct sinewin"
1381 wmav1_decoder_select="mdct sinewin"
1382 wmav1_encoder_select="mdct sinewin"
1383 wmav2_decoder_select="mdct sinewin"
1384 wmav2_encoder_select="mdct sinewin"
1385 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1386 wmv1_decoder_select="h263_decoder"
1387 wmv1_encoder_select="h263_encoder"
1388 wmv2_decoder_select="h263_decoder"
1389 wmv2_encoder_select="h263_encoder"
1390 wmv3_decoder_select="vc1_decoder"
1391 wmv3_crystalhd_decoder_select="crystalhd"
1392 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1393 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1394 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1395 zlib_decoder_select="zlib"
1396 zlib_encoder_select="zlib"
1397 zmbv_decoder_select="zlib"
1398 zmbv_encoder_select="zlib"
1399
1400 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1401 vaapi_deps="va_va_h"
1402 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1403
1404 # parsers
1405 h264_parser_select="golomb h264dsp h264pred"
1406
1407 # external libraries
1408 libcelt_decoder_deps="libcelt"
1409 libdirac_decoder_deps="libdirac !libschroedinger"
1410 libdirac_encoder_deps="libdirac"
1411 libfaac_encoder_deps="libfaac"
1412 libgsm_decoder_deps="libgsm"
1413 libgsm_encoder_deps="libgsm"
1414 libgsm_ms_decoder_deps="libgsm"
1415 libgsm_ms_encoder_deps="libgsm"
1416 libmp3lame_encoder_deps="libmp3lame"
1417 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1418 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1419 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1420 libopenjpeg_decoder_deps="libopenjpeg"
1421 libschroedinger_decoder_deps="libschroedinger"
1422 libschroedinger_encoder_deps="libschroedinger"
1423 libspeex_decoder_deps="libspeex"
1424 libtheora_encoder_deps="libtheora"
1425 libvo_aacenc_encoder_deps="libvo_aacenc"
1426 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1427 libvorbis_encoder_deps="libvorbis"
1428 libvpx_decoder_deps="libvpx"
1429 libvpx_encoder_deps="libvpx"
1430 libx264_encoder_deps="libx264"
1431 libxavs_encoder_deps="libxavs"
1432 libxvid_encoder_deps="libxvid"
1433
1434 # demuxers / muxers
1435 ac3_demuxer_select="ac3_parser"
1436 asf_stream_muxer_select="asf_muxer"
1437 avisynth_demuxer_deps="avisynth"
1438 dirac_demuxer_select="dirac_parser"
1439 eac3_demuxer_select="ac3_parser"
1440 flac_demuxer_select="flac_parser"
1441 ipod_muxer_select="mov_muxer"
1442 libnut_demuxer_deps="libnut"
1443 libnut_muxer_deps="libnut"
1444 matroska_audio_muxer_select="matroska_muxer"
1445 matroska_demuxer_suggest="zlib bzlib"
1446 mov_demuxer_suggest="zlib"
1447 mp3_demuxer_select="mpegaudio_parser"
1448 mp4_muxer_select="mov_muxer"
1449 mpegtsraw_demuxer_select="mpegts_demuxer"
1450 mxf_d10_muxer_select="mxf_muxer"
1451 ogg_demuxer_select="golomb"
1452 psp_muxer_select="mov_muxer"
1453 rtp_demuxer_select="sdp_demuxer"
1454 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1455 rtsp_demuxer_select="http_protocol rtpdec"
1456 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1457 sap_demuxer_select="sdp_demuxer"
1458 sap_muxer_select="rtp_muxer rtp_protocol"
1459 sdp_demuxer_select="rtpdec"
1460 spdif_muxer_select="aac_parser"
1461 tg2_muxer_select="mov_muxer"
1462 tgp_muxer_select="mov_muxer"
1463 w64_demuxer_deps="wav_demuxer"
1464
1465 # indevs / outdevs
1466 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1467 alsa_outdev_deps="alsa_asoundlib_h"
1468 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1469 dshow_indev_deps="IBaseFilter"
1470 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1471 dv1394_indev_deps="dv1394 dv_demuxer"
1472 fbdev_indev_deps="linux_fb_h"
1473 jack_indev_deps="jack_jack_h sem_timedwait"
1474 libdc1394_indev_deps="libdc1394"
1475 openal_indev_deps="openal"
1476 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1477 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1478 sdl_outdev_deps="sdl"
1479 sndio_indev_deps="sndio_h"
1480 sndio_outdev_deps="sndio_h"
1481 v4l_indev_deps="linux_videodev_h"
1482 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1483 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1484 vfwcap_indev_extralibs="-lavicap32"
1485 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1486 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1487
1488 # protocols
1489 gopher_protocol_deps="network"
1490 http_protocol_deps="network"
1491 http_protocol_select="tcp_protocol"
1492 mmsh_protocol_select="http_protocol"
1493 mmst_protocol_deps="network"
1494 rtmp_protocol_select="tcp_protocol"
1495 rtp_protocol_select="udp_protocol"
1496 tcp_protocol_deps="network"
1497 udp_protocol_deps="network"
1498
1499 # filters
1500 blackframe_filter_deps="gpl"
1501 boxblur_filter_deps="gpl"
1502 cropdetect_filter_deps="gpl"
1503 drawtext_filter_deps="libfreetype"
1504 frei0r_filter_deps="frei0r dlopen strtok_r"
1505 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1506 hqdn3d_filter_deps="gpl"
1507 movie_filter_deps="avcodec avformat"
1508 mp_filter_deps="gpl avcodec"
1509 negate_filter_deps="lut_filter"
1510 ocv_filter_deps="libopencv"
1511 scale_filter_deps="swscale"
1512 yadif_filter_deps="gpl"
1513
1514 # libraries
1515 avdevice_deps="avcodec avformat"
1516 avformat_deps="avcodec"
1517 postproc_deps="gpl"
1518
1519 # programs
1520 ffmpeg_deps="avcodec avformat swscale"
1521 ffmpeg_select="buffer_filter buffersink_filter"
1522 ffplay_deps="avcodec avformat swscale sdl"
1523 ffplay_select="buffersink_filter rdft"
1524 ffprobe_deps="avcodec avformat"
1525 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1526 ffserver_extralibs='$ldl'
1527
1528 doc_deps="texi2html"
1529
1530 # tests
1531
1532 test_deps(){
1533     suf1=$1
1534     suf2=$2
1535     shift 2
1536     for v; do
1537         dep=${v%=*}
1538         tests=${v#*=}
1539         for name in ${tests}; do
1540             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1541         done
1542     done
1543 }
1544
1545 test_deps _encoder _decoder                                             \
1546     adpcm_g726=g726                                                     \
1547     adpcm_ima_qt                                                        \
1548     adpcm_ima_wav                                                       \
1549     adpcm_ms                                                            \
1550     adpcm_swf                                                           \
1551     adpcm_yamaha=adpcm_yam                                              \
1552     alac                                                                \
1553     asv1                                                                \
1554     asv2                                                                \
1555     bmp                                                                 \
1556     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1557     dvvideo="dv dv50"                                                   \
1558     ffv1                                                                \
1559     flac                                                                \
1560     flashsv                                                             \
1561     flv                                                                 \
1562     gif                                                                 \
1563     h261                                                                \
1564     h263="h263 h263p"                                                   \
1565     huffyuv                                                             \
1566     jpegls                                                              \
1567     mjpeg="jpg mjpeg ljpeg"                                             \
1568     mp2                                                                 \
1569     mpeg1video="mpeg mpeg1b"                                            \
1570     mpeg2video="mpeg2 mpeg2thread"                                      \
1571     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1572     msmpeg4v3=msmpeg4                                                   \
1573     msmpeg4v2                                                           \
1574     pbm=pbmpipe                                                         \
1575     pcx                                                                 \
1576     pgm="pgm pgmpipe"                                                   \
1577     png                                                                 \
1578     ppm="ppm ppmpipe"                                                   \
1579     rawvideo="rgb yuv"                                                  \
1580     roq                                                                 \
1581     rv10                                                                \
1582     rv20                                                                \
1583     sgi                                                                 \
1584     snow="snow snowll"                                                  \
1585     svq1                                                                \
1586     targa=tga                                                           \
1587     tiff                                                                \
1588     wmav1                                                               \
1589     wmav2                                                               \
1590     wmv1                                                                \
1591     wmv2                                                                \
1592
1593 test_deps _muxer _demuxer                                               \
1594     aiff                                                                \
1595     pcm_alaw=alaw                                                       \
1596     asf                                                                 \
1597     au                                                                  \
1598     avi                                                                 \
1599     dv=dv_fmt                                                           \
1600     ffm                                                                 \
1601     flv=flv_fmt                                                         \
1602     gxf                                                                 \
1603     matroska=mkv                                                        \
1604     mmf                                                                 \
1605     mov                                                                 \
1606     pcm_mulaw=mulaw                                                     \
1607     mxf="mxf mxf_d10"                                                   \
1608     nut                                                                 \
1609     ogg                                                                 \
1610     rawvideo=pixfmt                                                     \
1611     rm                                                                  \
1612     swf                                                                 \
1613     mpegts=ts                                                           \
1614     voc                                                                 \
1615     wav                                                                 \
1616     yuv4mpegpipe=yuv4mpeg                                               \
1617
1618 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1619 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1620
1621 # default parameters
1622
1623 logfile="config.log"
1624
1625 # installation paths
1626 prefix_default="/usr/local"
1627 bindir_default='${prefix}/bin'
1628 datadir_default='${prefix}/share/ffmpeg'
1629 incdir_default='${prefix}/include'
1630 libdir_default='${prefix}/lib'
1631 mandir_default='${prefix}/share/man'
1632 shlibdir_default="$libdir_default"
1633
1634 # toolchain
1635 ar_default="ar"
1636 cc_default="gcc"
1637 cc_version=\"unknown\"
1638 host_cc_default="gcc"
1639 install="install"
1640 ln_s="ln -sf"
1641 nm_default="nm"
1642 objformat="elf"
1643 pkg_config_default=pkg-config
1644 ranlib="ranlib"
1645 strip_default="strip"
1646 yasmexe="yasm"
1647 nogas=":"
1648
1649 nm_opts='-g'
1650
1651 # machine
1652 arch_default=$(uname -m)
1653 cpu="generic"
1654
1655 # OS
1656 target_os_default=$(tolower $(uname -s))
1657 host_os=$target_os_default
1658
1659 # configurable options
1660 enable avcodec
1661 enable avdevice
1662 enable avfilter
1663 enable avformat
1664 enable avutil
1665 enable asm
1666 enable debug
1667 enable doc
1668 enable fastdiv
1669 enable ffmpeg
1670 enable ffplay
1671 enable ffprobe
1672 enable ffserver
1673 enable network
1674 enable optimizations
1675 enable postproc
1676 enable protocols
1677 enable static
1678 enable stripping
1679 enable swscale
1680 enable swscale_alpha
1681
1682 # build settings
1683 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1684 FFSERVERLDFLAGS=-Wl,-E
1685 LIBPREF="lib"
1686 LIBSUF=".a"
1687 FULLNAME='$(NAME)$(BUILDSUF)'
1688 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1689 SLIBPREF="lib"
1690 SLIBSUF=".so"
1691 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1692 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1693 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1694 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1695 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1696 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1697
1698 AS_O='-o $@'
1699 CC_O='-o $@'
1700
1701 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1702 host_libs='-lm'
1703
1704 target_path='$(CURDIR)'
1705
1706 # since the object filename is not given with the -MM flag, the compiler
1707 # is only able to print the basename, and we must add the path ourselves
1708 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1709 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1710
1711 # find source path
1712 if test -f configure; then
1713     source_path=.
1714 else
1715     source_path=$(cd $(dirname "$0"); pwd)
1716     echo "$source_path" | grep -q '[[:blank:]]' &&
1717         die "Out of tree builds are impossible with whitespace in source path."
1718     test -e "$source_path/config.h" &&
1719         die "Out of tree builds are impossible with config.h in source dir."
1720 fi
1721
1722 for v in "$@"; do
1723     r=${v#*=}
1724     l=${v%"$r"}
1725     r=$(sh_quote "$r")
1726     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1727 done
1728
1729 find_things(){
1730     thing=$1
1731     pattern=$2
1732     file=$source_path/$3
1733     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1734 }
1735
1736 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1737 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1738 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1739 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1740 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1741 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1742 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1743 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1744 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1745 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1746 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1747
1748 find_tests(){
1749     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1750 }
1751
1752 ACODEC_TESTS=$(find_tests acodec)
1753 VCODEC_TESTS=$(find_tests vsynth1)
1754 LAVF_TESTS=$(find_tests lavf)
1755 LAVFI_TESTS=$(find_tests lavfi)
1756 SEEK_TESTS=$(find_tests seek seek_)
1757
1758 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1759
1760 for n in $COMPONENT_LIST; do
1761     v=$(toupper ${n%s})_LIST
1762     eval enable \$$v
1763     eval ${n}_if_any="\$$v"
1764 done
1765
1766 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1767
1768 die_unknown(){
1769     echo "Unknown option \"$1\"."
1770     echo "See $0 --help for available options."
1771     exit 1
1772 }
1773
1774 show_list() {
1775     suffix=_$1
1776     shift
1777     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1778     exit 0
1779 }
1780
1781 for opt do
1782     optval="${opt#*=}"
1783     case "$opt" in
1784     --extra-ldflags=*) add_ldflags $optval
1785     ;;
1786     --extra-libs=*) add_extralibs $optval
1787     ;;
1788     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1789     ;;
1790     --enable-debug=*) debuglevel="$optval"
1791     ;;
1792     --disable-everything)
1793     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1794     ;;
1795     --enable-*=*|--disable-*=*)
1796     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1797     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1798     eval list=\$$(toupper $thing)_LIST
1799     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1800     $action $(filter "$name" $list)
1801     ;;
1802     --enable-?*|--disable-?*)
1803     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1804     if is_in $option $COMPONENT_LIST; then
1805         test $action = disable && action=unset
1806         eval $action \$$(toupper ${option%s})_LIST
1807     elif is_in $option $CMDLINE_SELECT; then
1808         $action $option
1809     else
1810         die_unknown $opt
1811     fi
1812     ;;
1813     --list-*)
1814         NAME="${opt#--list-}"
1815         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1816         NAME=${NAME%s}
1817         eval show_list $NAME \$$(toupper $NAME)_LIST
1818     ;;
1819     --help|-h) show_help
1820     ;;
1821     *)
1822     optname="${opt%%=*}"
1823     optname="${optname#--}"
1824     optname=$(echo "$optname" | sed 's/-/_/g')
1825     if is_in $optname $CMDLINE_SET; then
1826         eval $optname='$optval'
1827     elif is_in $optname $CMDLINE_APPEND; then
1828         append $optname "$optval"
1829     else
1830          die_unknown $opt
1831     fi
1832     ;;
1833     esac
1834 done
1835
1836 disabled logging && logfile=/dev/null
1837
1838 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1839 set >> $logfile
1840
1841 test -n "$cross_prefix" && enable cross_compile
1842
1843 if enabled cross_compile; then
1844     test -n "$arch" && test -n "$target_os" ||
1845         die "Must specify target arch and OS when cross-compiling"
1846 fi
1847
1848 set_default arch target_os
1849
1850 ar_default="${cross_prefix}${ar_default}"
1851 cc_default="${cross_prefix}${cc_default}"
1852 nm_default="${cross_prefix}${nm_default}"
1853 pkg_config_default="${cross_prefix}${pkg_config_default}"
1854 ranlib="${cross_prefix}${ranlib}"
1855 strip_default="${cross_prefix}${strip_default}"
1856
1857 sysinclude_default="${sysroot}/usr/include"
1858
1859 set_default cc nm pkg_config strip sysinclude
1860 enabled cross_compile || host_cc_default=$cc
1861 set_default host_cc
1862
1863 if ! $pkg_config --version >/dev/null 2>&1; then
1864     warn "$pkg_config not found, library detection may fail."
1865     pkg_config=false
1866 fi
1867
1868 exesuf() {
1869     case $1 in
1870         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1871     esac
1872 }
1873
1874 EXESUF=$(exesuf $target_os)
1875 HOSTEXESUF=$(exesuf $host_os)
1876
1877 # set temporary file name
1878 : ${TMPDIR:=$TEMPDIR}
1879 : ${TMPDIR:=$TMP}
1880 : ${TMPDIR:=/tmp}
1881
1882 if ! check_cmd mktemp -u XXXXXX; then
1883     # simple replacement for missing mktemp
1884     # NOT SAFE FOR GENERAL USE
1885     mktemp(){
1886         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1887     }
1888 fi
1889
1890 tmpfile(){
1891     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1892         (set -C; exec > $tmp) 2>/dev/null ||
1893         die "Unable to create temporary file in $TMPDIR."
1894     append TMPFILES $tmp
1895     eval $1=$tmp
1896 }
1897
1898 trap 'rm -f -- $TMPFILES' EXIT
1899
1900 tmpfile TMPC  .c
1901 tmpfile TMPE  $EXESUF
1902 tmpfile TMPH  .h
1903 tmpfile TMPO  .o
1904 tmpfile TMPS  .S
1905 tmpfile TMPV  .ver
1906 tmpfile TMPSH .sh
1907 tmpfile TMPASM .asm
1908
1909 unset -f mktemp
1910
1911 chmod +x $TMPE
1912
1913 # make sure we can execute files in $TMPDIR
1914 cat > $TMPSH 2>> $logfile <<EOF
1915 #! /bin/sh
1916 EOF
1917 chmod +x $TMPSH >> $logfile 2>&1
1918 if ! $TMPSH >> $logfile 2>&1; then
1919     cat <<EOF
1920 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1921 variable to another directory and make sure that it is not mounted noexec.
1922 EOF
1923     die "Sanity test failed."
1924 fi
1925
1926 filter_cflags=echo
1927 filter_cppflags=echo
1928 filter_asflags=echo
1929
1930 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1931     cc_type=llvm_gcc
1932     cc_version=__VERSION__
1933     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1934     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1935     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1936     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1937     speed_cflags='-O3'
1938     size_cflags='-Os'
1939 elif $cc -v 2>&1 | grep -qi ^gcc; then
1940     cc_type=gcc
1941     cc_version=__VERSION__
1942     gcc_version=$($cc --version | head -n1)
1943     gcc_basever=$($cc -dumpversion)
1944     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1945     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1946     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1947     if ! $cc -dumpversion | grep -q '^2\.'; then
1948         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1949         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1950     fi
1951     speed_cflags='-O3'
1952     size_cflags='-Os'
1953 elif $cc --version 2>/dev/null | grep -q Intel; then
1954     cc_type=icc
1955     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1956     cc_ident=$($cc --version | head -n1)
1957     icc_version=$($cc -dumpversion)
1958     CC_DEPFLAGS='-MMD'
1959     AS_DEPFLAGS='-MMD'
1960     speed_cflags='-O3'
1961     size_cflags='-Os'
1962     noopt_cflags='-O1'
1963 elif $cc -v 2>&1 | grep -q xlc; then
1964     cc_type=xlc
1965     cc_version="AV_STRINGIFY(__IBMC__)"
1966     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1967     speed_cflags='-O5'
1968     size_cflags='-O5 -qcompact'
1969 elif $cc -V 2>/dev/null | grep -q Compaq; then
1970     cc_type=ccc
1971     cc_version="AV_STRINGIFY(__DECC_VER)"
1972     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1973     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1974     debuglevel=3
1975     add_ldflags -Wl,-z,now # calls to libots crash without this
1976     speed_cflags='-fast'
1977     size_cflags='-O1'
1978 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1979     test -d "$sysroot" || die "No valid sysroot specified."
1980     cc_type=armcc
1981     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1982     cc_ident=$($cc --vsn | head -n1)
1983     armcc_conf="$PWD/armcc.conf"
1984     $cc --arm_linux_configure                 \
1985         --arm_linux_config_file="$armcc_conf" \
1986         --configure_sysroot="$sysroot"        \
1987         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1988         die "Error creating armcc configuration file."
1989     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1990     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1991     as_default="${cross_prefix}gcc"
1992     CC_DEPFLAGS='-MMD'
1993     AS_DEPFLAGS='-MMD'
1994     speed_cflags='-O3'
1995     size_cflags='-Os'
1996     filter_asflags="filter_out -W${armcc_opt}*"
1997 elif $cc -version 2>/dev/null | grep -q TMS470; then
1998     cc_type=tms470
1999     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2000     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2001     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2002     CC_O='-fr=$(@D)'
2003     as_default="${cross_prefix}gcc"
2004     ld_default="${cross_prefix}gcc"
2005     TMPO=$(basename $TMPC .c).o
2006     append TMPFILES $TMPO
2007     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2008     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2009     AS_DEPFLAGS='-MMD'
2010     speed_cflags='-O3 -mf=5'
2011     size_cflags='-O3 -mf=2'
2012     filter_cflags=tms470_flags
2013     tms470_flags(){
2014         for flag; do
2015             case $flag in
2016                 -march=*|-mcpu=*)
2017                     case "${flag#*=}" in
2018                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2019                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2020                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2021                         armv6*|arm11*)          echo -mv=6   ;;
2022                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2023                                                 echo -mv=5e  ;;
2024                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2025                     esac
2026                     ;;
2027                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2028                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2029                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2030                 -msoft-float)   echo --float_support=vfplib       ;;
2031                 -O[0-3]|-mf=*)  echo $flag                        ;;
2032                 -g)             echo -g -mn                       ;;
2033                 -pds=*)         echo $flag                        ;;
2034             esac
2035         done
2036     }
2037 elif $cc -v 2>&1 | grep -q clang; then
2038     cc_type=clang
2039     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2040         cc_version=__clang_version__ || cc_version=__VERSION__
2041     cc_ident=$($cc --version | head -n1)
2042     CC_DEPFLAGS='-MMD'
2043     AS_DEPFLAGS='-MMD'
2044     speed_cflags='-O3'
2045     size_cflags='-Os'
2046 elif $cc -V 2>&1 | grep -q Sun; then
2047     cc_type=suncc
2048     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2049     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2050     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2051     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2052     add_ldflags -xc99
2053     speed_cflags='-O5'
2054     size_cflags='-O5 -xspace'
2055     filter_cflags=suncc_flags
2056     suncc_flags(){
2057         for flag; do
2058             case $flag in
2059                 -march=*|-mcpu=*)
2060                     case "${flag#*=}" in
2061                         native)                   echo -xtarget=native       ;;
2062                         v9|niagara)               echo -xarch=sparc          ;;
2063                         ultrasparc)               echo -xarch=sparcvis       ;;
2064                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2065                         i586|pentium)             echo -xchip=pentium        ;;
2066                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2067                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2068                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2069                         pentium4*)          echo -xtarget=pentium4           ;;
2070                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2071                         *-sse3)             echo -xarch=sse3                 ;;
2072                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2073                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2074                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2075                         k8|opteron|athlon64|athlon-fx)
2076                                                   echo -xarch=sse2a          ;;
2077                         athlon*)                  echo -xarch=pentium_proa   ;;
2078                     esac
2079                     ;;
2080                 -std=c99)             echo -xc99              ;;
2081                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2082                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2083                 -W*,*)                echo $flag              ;;
2084                 -f*-*|-W*)                                    ;;
2085                 *)                    echo $flag              ;;
2086             esac
2087         done
2088     }
2089 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2090     cc_type=pathscale
2091     cc_version=__PATHSCALE__
2092     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2093     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2094     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2095     speed_cflags='-O2'
2096     size_cflags='-Os'
2097     filter_cflags='filter_out -Wdisabled-optimization'
2098 elif $cc -v 2>&1 | grep -q Open64; then
2099     cc_type=open64
2100     cc_version=__OPEN64__
2101     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2102     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2103     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2104     speed_cflags='-O2'
2105     size_cflags='-Os'
2106     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2107 fi
2108
2109 test -n "$cc_type" && enable $cc_type ||
2110     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2111
2112 : ${as_default:=$cc}
2113 : ${dep_cc_default:=$cc}
2114 : ${ld_default:=$cc}
2115 set_default ar as dep_cc ld
2116
2117 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2118 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2119
2120 add_cflags $extra_cflags
2121 add_asflags $extra_cflags
2122
2123 if test -n "$sysroot"; then
2124     case "$cc_type" in
2125         gcc|llvm_gcc|clang)
2126             add_cppflags --sysroot="$sysroot"
2127             add_ldflags --sysroot="$sysroot"
2128         ;;
2129         tms470)
2130             add_cppflags -I"$sysinclude"
2131             add_ldflags  --sysroot="$sysroot"
2132         ;;
2133     esac
2134 fi
2135
2136 if test "$cpu" = host; then
2137     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2138
2139     case "$cc_type" in
2140         gcc|llvm_gcc)
2141             check_native(){
2142                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2143                 sed -n "/cc1.*$1=/{
2144                             s/.*$1=\\([^ ]*\\).*/\\1/
2145                             p
2146                             q
2147                         }" $TMPE
2148             }
2149             cpu=$(check_native -march || check_native -mcpu)
2150         ;;
2151     esac
2152
2153     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2154 fi
2155
2156 # Deal with common $arch aliases
2157 case "$arch" in
2158     arm*)
2159         arch="arm"
2160     ;;
2161     mips|mipsel|IP*)
2162         arch="mips"
2163     ;;
2164     mips64*)
2165         arch="mips"
2166         subarch="mips64"
2167     ;;
2168     parisc|hppa)
2169         arch="parisc"
2170     ;;
2171     parisc64|hppa64)
2172         arch="parisc"
2173         subarch="parisc64"
2174     ;;
2175     "Power Macintosh"|ppc|powerpc)
2176         arch="ppc"
2177     ;;
2178     ppc64|powerpc64)
2179         arch="ppc"
2180         subarch="ppc64"
2181     ;;
2182     s390|s390x)
2183         arch="s390"
2184     ;;
2185     sh4|sh)
2186         arch="sh4"
2187     ;;
2188     sun4u|sparc64)
2189         arch="sparc"
2190         subarch="sparc64"
2191     ;;
2192     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2193         arch="x86"
2194     ;;
2195 esac
2196
2197 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2198 enable $arch
2199
2200 # Add processor-specific flags
2201 if test "$cpu" = generic; then
2202     : do nothing
2203 elif enabled ppc; then
2204
2205     case $(tolower $cpu) in
2206         601|ppc601|powerpc601)
2207             cpuflags="-mcpu=601"
2208             disable altivec
2209         ;;
2210         603*|ppc603*|powerpc603*)
2211             cpuflags="-mcpu=603"
2212             disable altivec
2213         ;;
2214         604*|ppc604*|powerpc604*)
2215             cpuflags="-mcpu=604"
2216             disable altivec
2217         ;;
2218         g3|75*|ppc75*|powerpc75*)
2219             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2220             disable altivec
2221         ;;
2222         g4|745*|ppc745*|powerpc745*)
2223             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2224         ;;
2225         74*|ppc74*|powerpc74*)
2226             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2227         ;;
2228         g5|970|ppc970|powerpc970|power4*)
2229             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2230         ;;
2231         cell)
2232             cpuflags="-mcpu=cell"
2233             enable ldbrx
2234         ;;
2235         e500v2)
2236             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2237             disable altivec
2238         ;;
2239         e500)
2240             cpuflags="-mcpu=8540 -mhard-float"
2241             disable altivec
2242         ;;
2243     esac
2244
2245 elif enabled x86; then
2246
2247     case $cpu in
2248         i[345]86|pentium)
2249             cpuflags="-march=$cpu"
2250             disable mmx
2251         ;;
2252         # targets that do NOT support conditional mov (cmov)
2253         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2254             cpuflags="-march=$cpu"
2255             disable cmov
2256         ;;
2257         # targets that do support conditional mov (cmov)
2258         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2259             cpuflags="-march=$cpu"
2260             enable cmov
2261             enable fast_cmov
2262         ;;
2263         # targets that do support conditional mov but on which it's slow
2264         pentium4|pentium4m|prescott|nocona)
2265             cpuflags="-march=$cpu"
2266             enable cmov
2267             disable fast_cmov
2268         ;;
2269     esac
2270
2271 elif enabled sparc; then
2272
2273     case $cpu in
2274         niagara)
2275             cpuflags="-mcpu=$cpu"
2276             disable vis
2277         ;;
2278         sparc64)
2279             cpuflags="-mcpu=v9"
2280         ;;
2281     esac
2282
2283 elif enabled arm; then
2284
2285     case $cpu in
2286         armv*)
2287             cpuflags="-march=$cpu"
2288             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2289         ;;
2290         *)
2291             cpuflags="-mcpu=$cpu"
2292             case $cpu in
2293                 cortex-a*)                               subarch=armv7a  ;;
2294                 cortex-r*)                               subarch=armv7r  ;;
2295                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2296                 arm11*)                                  subarch=armv6   ;;
2297                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2298                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2299             esac
2300         ;;
2301     esac
2302
2303 elif enabled alpha; then
2304
2305     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2306
2307 elif enabled bfin; then
2308
2309     cpuflags="-mcpu=$cpu"
2310
2311 elif enabled mips; then
2312
2313     cpuflags="-march=$cpu"
2314
2315 elif enabled avr32; then
2316
2317     case $cpu in
2318         ap7[02]0[0-2])
2319             subarch="avr32_ap"
2320             cpuflags="-mpart=$cpu"
2321         ;;
2322         ap)
2323             subarch="avr32_ap"
2324             cpuflags="-march=$cpu"
2325         ;;
2326         uc3[ab]*)
2327             subarch="avr32_uc"
2328             cpuflags="-mcpu=$cpu"
2329         ;;
2330         uc)
2331             subarch="avr32_uc"
2332             cpuflags="-march=$cpu"
2333         ;;
2334     esac
2335
2336 fi
2337
2338 add_cflags $cpuflags
2339 add_asflags $cpuflags
2340
2341 # compiler sanity check
2342 check_exec <<EOF
2343 int main(void){ return 0; }
2344 EOF
2345 if test "$?" != 0; then
2346     echo "$cc is unable to create an executable file."
2347     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2348         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2349         echo "Only do this if you know what cross compiling means."
2350     fi
2351     die "C compiler test failed."
2352 fi
2353
2354 add_cppflags -D_ISOC99_SOURCE
2355 check_cflags -std=c99
2356 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2357 #include <stdlib.h>
2358 EOF
2359 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2360 #include <stdlib.h>
2361 EOF
2362
2363 check_host_cflags -std=c99
2364 check_host_cflags -Wall
2365
2366 case "$arch" in
2367     alpha|ia64|mips|parisc|sparc)
2368         spic=$shared
2369     ;;
2370     x86)
2371         subarch="x86_32"
2372         check_cc <<EOF && subarch="x86_64"
2373         int test[(int)sizeof(char*) - 7];
2374 EOF
2375         if test "$subarch" = "x86_64"; then
2376             spic=$shared
2377         fi
2378     ;;
2379 esac
2380
2381 enable $subarch
2382 enabled spic && enable pic
2383
2384 # OS specific
2385 case $target_os in
2386     haiku)
2387         prefix_default="/boot/common"
2388         network_extralibs="-lnetwork"
2389         host_libs=
2390         ;;
2391     sunos)
2392         FFSERVERLDFLAGS=""
2393         SHFLAGS='-shared -Wl,-h,$$(@F)'
2394         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2395         network_extralibs="-lsocket -lnsl"
2396         add_cppflags -D__EXTENSIONS__
2397         nm_opts='-P -g'
2398         ;;
2399     netbsd)
2400         disable symver
2401         oss_indev_extralibs="-lossaudio"
2402         oss_outdev_extralibs="-lossaudio"
2403         ;;
2404     openbsd)
2405         enable malloc_aligned
2406         # On OpenBSD 4.5. the compiler does not use PIC unless
2407         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2408         # however the generated executable will not do anything
2409         # (simply quits with exit-code 1, no crash, no output).
2410         # Thus explicitly enable PIC here.
2411         enable pic
2412         disable symver
2413         SHFLAGS='-shared'
2414         oss_indev_extralibs="-lossaudio"
2415         oss_outdev_extralibs="-lossaudio"
2416         ;;
2417     dragonfly)
2418         enable malloc_aligned
2419         disable symver
2420         ;;
2421     freebsd)
2422         enable malloc_aligned
2423         ;;
2424     bsd/os)
2425         add_extralibs -lpoll -lgnugetopt
2426         strip="strip -d"
2427         ;;
2428     darwin)
2429         enable malloc_aligned
2430         gas="gas-preprocessor.pl $cc"
2431         enabled ppc && add_asflags -force_cpusubtype_ALL
2432         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2433         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2434         strip="${strip} -x"
2435         add_ldflags -Wl,-dynamic,-search_paths_first
2436         SLIBSUF=".dylib"
2437         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2438         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2439         FFSERVERLDFLAGS=-Wl,-bind_at_load
2440         objformat="macho"
2441         enabled x86_64 && objformat="macho64"
2442         enabled_any pic shared ||
2443             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2444         ;;
2445     mingw32*)
2446         if test $target_os = "mingw32ce"; then
2447             disable network
2448         else
2449             target_os=mingw32
2450         fi
2451         LIBTARGET=i386
2452         if enabled x86_64; then
2453             enable malloc_aligned
2454             LIBTARGET=x64
2455         elif enabled arm; then
2456             LIBTARGET=arm-wince
2457         fi
2458         shlibdir_default="$bindir_default"
2459         SLIBPREF=""
2460         SLIBSUF=".dll"
2461         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2462         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2463         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2464         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2465         SLIB_INSTALL_LINKS=
2466         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2467         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2468         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'
2469         objformat="win32"
2470         enable dos_paths
2471         check_cflags -fno-common
2472         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2473                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2474                 die "ERROR: MinGW runtime version must be >= 3.15."
2475         add_cppflags -U__STRICT_ANSI__
2476         ;;
2477     cygwin*)
2478         target_os=cygwin
2479         shlibdir_default="$bindir_default"
2480         SLIBPREF="cyg"
2481         SLIBSUF=".dll"
2482         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2483         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2484         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2485         objformat="win32"
2486         enable dos_paths
2487         check_cflags -fno-common
2488         add_cppflags -U__STRICT_ANSI__
2489         ;;
2490     *-dos|freedos|opendos)
2491         network_extralibs="-lsocket"
2492         objformat="coff"
2493         enable dos_paths
2494         add_cppflags -U__STRICT_ANSI__
2495         ;;
2496     linux)
2497         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2498         enable dv1394
2499         ;;
2500     irix*)
2501         target_os=irix
2502         ranlib="echo ignoring ranlib"
2503         ;;
2504     os/2*)
2505         strip="lxlite -CS"
2506         ln_s="cp -f"
2507         objformat="aout"
2508         add_cppflags -D_GNU_SOURCE
2509         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2510         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2511         FFSERVERLDFLAGS=""
2512         LIBSUF="_s.a"
2513         SLIBPREF=""
2514         SLIBSUF=".dll"
2515         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2516         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2517         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2518           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2519           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2520           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2521           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2522           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2523         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2524           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2525         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2526         enable dos_paths
2527         ;;
2528     gnu/kfreebsd)
2529         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2530         ;;
2531     gnu)
2532         ;;
2533     qnx)
2534         add_cppflags -D_QNX_SOURCE
2535         network_extralibs="-lsocket"
2536         ;;
2537     symbian)
2538         SLIBSUF=".dll"
2539         enable dos_paths
2540         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2541         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2542         add_ldflags -Wl,--target1-abs,--no-undefined \
2543                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2544                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2545         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2546                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2547                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2548         ;;
2549     none)
2550         ;;
2551     *)
2552         die "Unknown OS '$target_os'."
2553         ;;
2554 esac
2555
2556 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2557
2558 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2559
2560 set_default $PATHS_LIST
2561
2562 # we need to build at least one lib type
2563 if ! enabled_any static shared; then
2564     cat <<EOF
2565 At least one library type must be built.
2566 Specify --enable-static to build the static libraries or --enable-shared to
2567 build the shared libraries as well. To only build the shared libraries specify
2568 --disable-static in addition to --enable-shared.
2569 EOF
2570     exit 1;
2571 fi
2572
2573 die_license_disabled() {
2574     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2575 }
2576
2577 die_license_disabled gpl libx264
2578 die_license_disabled gpl libxavs
2579 die_license_disabled gpl libxvid
2580 die_license_disabled gpl x11grab
2581
2582 die_license_disabled nonfree libfaac
2583
2584 die_license_disabled version3 libopencore_amrnb
2585 die_license_disabled version3 libopencore_amrwb
2586 die_license_disabled version3 libvo_aacenc
2587 die_license_disabled version3 libvo_amrwbenc
2588
2589 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2590
2591 disabled optimizations || check_cflags -fomit-frame-pointer
2592
2593 enable_pic() {
2594     enable pic
2595     add_cppflags -DPIC
2596     add_cflags   -fPIC
2597     add_asflags  -fPIC
2598 }
2599
2600 enabled pic && enable_pic
2601
2602 check_cc <<EOF || die "Symbol mangling check failed."
2603 int ff_extern;
2604 EOF
2605 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2606 extern_prefix=${sym%%ff_extern*}
2607
2608 check_cc <<EOF && enable inline_asm
2609 void foo(void) { __asm__ volatile ("" ::); }
2610 EOF
2611
2612 _restrict=
2613 for restrict_keyword in restrict __restrict__ __restrict; do
2614     check_cc <<EOF && _restrict=$restrict_keyword && break
2615 void foo(char * $restrict_keyword p);
2616 EOF
2617 done
2618
2619 check_cc <<EOF && enable attribute_packed
2620 struct { int x; } __attribute__((packed)) x;
2621 EOF
2622
2623 check_cc <<EOF && enable attribute_may_alias
2624 union { int x; } __attribute__((may_alias)) x;
2625 EOF
2626
2627 check_cc <<EOF || die "endian test failed"
2628 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2629 EOF
2630 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2631
2632 if enabled alpha; then
2633
2634     check_cflags -mieee
2635
2636 elif enabled arm; then
2637
2638     enabled thumb && check_cflags -mthumb || check_cflags -marm
2639     nogas=die
2640
2641     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2642         enable vfp_args
2643     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2644         case "${cross_prefix:-$cc}" in
2645             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2646             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2647 __asm__ (".eabi_attribute 28, 1");
2648 int main(void) { return 0; }
2649 EOF
2650         esac
2651         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2652     fi
2653
2654     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2655     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2656     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2657     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2658     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2659     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2660     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2661
2662     enabled_all armv6t2 shared !pic && enable_pic
2663
2664 elif enabled mips; then
2665
2666     check_asm loongson '"dmult.g $1, $2, $3"'
2667     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2668
2669 elif enabled ppc; then
2670
2671     enable local_aligned_8 local_aligned_16
2672
2673     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2674     check_asm ibm_asm   '"add 0, 0, 0"'
2675     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2676     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2677
2678     # AltiVec flags: The FSF version of GCC differs from the Apple version
2679     if enabled altivec; then
2680         nogas=warn
2681         check_cflags -maltivec -mabi=altivec &&
2682         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2683         check_cflags -faltivec
2684
2685         # check if our compiler supports Motorola AltiVec C API
2686         check_cc <<EOF || disable altivec
2687 $inc_altivec_h
2688 int main(void) {
2689     vector signed int v1, v2, v3;
2690     v1 = vec_add(v2,v3);
2691     return 0;
2692 }
2693 EOF
2694
2695         # check if our compiler supports braces for vector declarations
2696         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2697 $inc_altivec_h
2698 int main (void) { (vector int) {1}; return 0; }
2699 EOF
2700     fi
2701
2702 elif enabled sparc; then
2703
2704     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2705         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2706
2707 elif enabled x86; then
2708
2709     enable local_aligned_8 local_aligned_16
2710
2711     # check whether EBP is available on x86
2712     # As 'i' is stored on the stack, this program will crash
2713     # if the base pointer is used to access it because the
2714     # base pointer is cleared in the inline assembly code.
2715     check_exec_crash <<EOF && enable ebp_available
2716     volatile int i=0;
2717     __asm__ volatile (
2718         "xorl %%ebp, %%ebp"
2719     ::: "%ebp");
2720     return i;
2721 EOF
2722
2723     # check whether EBX is available on x86
2724     check_asm ebx_available '""::"b"(0)' &&
2725         check_asm ebx_available '"":::"%ebx"'
2726
2727     # check whether xmm clobbers are supported
2728     check_asm xmm_clobbers '"":::"%xmm0"'
2729
2730     # check whether binutils is new enough to compile SSSE3/MMX2
2731     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2732     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2733
2734     check_asm bswap '"bswap %%eax" ::: "%eax"'
2735
2736     if ! disabled_any asm mmx yasm; then
2737         if check_cmd $yasmexe --version; then
2738             enabled x86_64 && yasm_extra="-m amd64"
2739             yasm_debug="-g dwarf2"
2740         elif check_cmd nasm -v; then
2741             yasmexe=nasm
2742             yasm_debug="-g -F dwarf"
2743             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2744         fi
2745
2746         YASMFLAGS="-f $objformat $yasm_extra"
2747         enabled pic               && append YASMFLAGS "-DPIC"
2748         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2749         case "$objformat" in
2750             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2751         esac
2752
2753         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2754             die "yasm not found, use --disable-yasm for a crippled build"
2755         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2756     fi
2757
2758     case "$cpu" in
2759         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2760             disable fast_clz
2761         ;;
2762     esac
2763
2764 fi
2765
2766 if enabled asm; then
2767     as=${gas:=$as}
2768     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2769         $nogas "GNU assembler not found, install gas-preprocessor"
2770 fi
2771
2772 check_ldflags -Wl,--as-needed
2773
2774 if check_func dlopen; then
2775     ldl=
2776 elif check_func dlopen -ldl; then
2777     ldl=-ldl
2778 fi
2779
2780 if enabled network; then
2781     check_type "sys/types.h sys/socket.h" socklen_t
2782     check_type netdb.h "struct addrinfo"
2783     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2784     check_type netinet/in.h "struct sockaddr_in6"
2785     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2786     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2787     # Prefer arpa/inet.h over winsock2
2788     if check_header arpa/inet.h ; then
2789         check_func closesocket
2790     elif check_header winsock2.h ; then
2791         check_func_headers winsock2.h closesocket -lws2 && \
2792             network_extralibs="-lws2" || \
2793         { check_func_headers winsock2.h closesocket -lws2_32 && \
2794             network_extralibs="-lws2_32"; }
2795         check_type ws2tcpip.h socklen_t
2796         check_type ws2tcpip.h "struct addrinfo"
2797         check_type ws2tcpip.h "struct ipv6_mreq"
2798         check_type ws2tcpip.h "struct sockaddr_in6"
2799         check_type ws2tcpip.h "struct sockaddr_storage"
2800         check_struct winsock2.h "struct sockaddr" sa_len
2801     else
2802         disable network
2803     fi
2804 fi
2805
2806 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2807 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2808
2809 check_func  fcntl
2810 check_func  fork
2811 check_func  getaddrinfo $network_extralibs
2812 check_func  gethrtime
2813 check_func  getrusage
2814 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2815 check_func  inet_aton $network_extralibs
2816 check_func  isatty
2817 check_func  localtime_r
2818 check_func  ${malloc_prefix}memalign            && enable memalign
2819 check_func  mkstemp
2820 check_func  mmap
2821 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2822 check_func  setrlimit
2823 check_func  strerror_r
2824 check_func  strptime
2825 check_func  strtok_r
2826 check_func_headers conio.h kbhit
2827 check_func_headers io.h setmode
2828 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2829 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2830 check_func_headers windows.h GetProcessTimes
2831 check_func_headers windows.h MapViewOfFile
2832 check_func_headers windows.h VirtualAlloc
2833
2834 check_header dlfcn.h
2835 check_header dxva2api.h
2836 check_header libcrystalhd/libcrystalhd_if.h
2837 check_header malloc.h
2838 check_header poll.h
2839 check_header sys/mman.h
2840 check_header sys/resource.h
2841 check_header sys/select.h
2842 check_header termios.h
2843 check_header vdpau/vdpau.h
2844 check_header vdpau/vdpau_x11.h
2845 check_header X11/extensions/XvMClib.h
2846
2847 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2848
2849 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2850 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2851
2852 # check for some common methods of building with pthread support
2853 # do this before the optional library checks as some of them require pthreads
2854 if ! disabled pthreads && ! enabled w32threads; then
2855     enable pthreads
2856     if check_func pthread_create; then
2857         :
2858     elif check_func pthread_create -pthread; then
2859         add_cflags -pthread
2860         add_extralibs -pthread
2861     elif check_func pthread_create -pthreads; then
2862         add_cflags -pthreads
2863         add_extralibs -pthreads
2864     elif check_func pthread_create -lpthreadGC2; then
2865         add_extralibs -lpthreadGC2
2866     elif ! check_lib pthread.h pthread_create -lpthread; then
2867         disable pthreads
2868     fi
2869 fi
2870
2871 for thread in $THREADS_LIST; do
2872     if enabled $thread; then
2873         test -n "$thread_type" &&
2874             die "ERROR: Only one thread type must be selected." ||
2875             thread_type="$thread"
2876     fi
2877 done
2878
2879 check_lib math.h sin -lm && LIBM="-lm"
2880 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2881 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2882
2883 check_mathfunc exp2
2884 check_mathfunc exp2f
2885 check_mathfunc llrint
2886 check_mathfunc llrintf
2887 check_mathfunc log2
2888 check_mathfunc log2f
2889 check_mathfunc lrint
2890 check_mathfunc lrintf
2891 check_mathfunc round
2892 check_mathfunc roundf
2893 check_mathfunc trunc
2894 check_mathfunc truncf
2895
2896 # these are off by default, so fail if requested and not available
2897 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2898 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2899 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2900 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2901 enabled libdirac   && require_pkg_config dirac                          \
2902     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2903     "dirac_decoder_init dirac_encoder_init"
2904 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2905 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2906 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2907 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2908 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2909 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2910 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2911 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2912 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2913 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2914 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2915 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2916 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2917 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2918 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2919 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2920 enabled libvpx     && {
2921     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2922                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2923     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2924                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2925 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2926                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2927                         die "ERROR: libx264 version must be >= 0.115."; }
2928 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2929 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2930 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2931                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2932                         die "ERROR: openal not found"; } &&
2933                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2934                         die "ERROR: openal version must be 1.1 or compatible"; }
2935 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2936
2937 SDL_CONFIG="${cross_prefix}sdl-config"
2938 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2939     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2940     enable sdl &&
2941     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2942 else
2943   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2944     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2945     sdl_libs=$("${SDL_CONFIG}" --libs)
2946     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2947     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2948     enable sdl &&
2949     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2950   fi
2951 fi
2952 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2953
2954 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2955
2956 check_header linux/fb.h
2957 check_header linux/videodev.h
2958 check_header linux/videodev2.h
2959 check_header sys/videoio.h
2960
2961 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2962 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2963 # w32api 3.12 had it defined wrong
2964 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2965
2966 check_type "dshow.h" IBaseFilter
2967
2968 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2969 { check_header dev/bktr/ioctl_meteor.h &&
2970   check_header dev/bktr/ioctl_bt848.h; } ||
2971 { check_header machine/ioctl_meteor.h &&
2972   check_header machine/ioctl_bt848.h; } ||
2973 { check_header dev/video/meteor/ioctl_meteor.h &&
2974   check_header dev/video/bktr/ioctl_bt848.h; } ||
2975 check_header dev/ic/bt8xx.h
2976
2977 check_header sndio.h
2978 if check_struct sys/soundcard.h audio_buf_info bytes; then
2979     enable_safe sys/soundcard.h
2980 else
2981     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2982     #include <sys/soundcard.h>
2983     audio_buf_info abc;
2984 EOF
2985 fi
2986 check_header soundcard.h
2987
2988 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2989
2990 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
2991
2992 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2993
2994 enabled x11grab                         &&
2995 check_header X11/Xlib.h                 &&
2996 check_header X11/extensions/XShm.h      &&
2997 check_header X11/extensions/Xfixes.h    &&
2998 check_func XOpenDisplay -lX11           &&
2999 check_func XShmCreateImage -lX11 -lXext &&
3000 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3001
3002 if ! disabled vaapi; then
3003     check_lib va/va.h vaInitialize -lva && {
3004         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3005         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3006     } || disable vaapi
3007 fi
3008
3009 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3010 check_cpp_condition \
3011     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3012     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3013       disable vdpau; }
3014 fi
3015
3016 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3017
3018 # add some useful compiler flags if supported
3019 check_cflags -Wdeclaration-after-statement
3020 check_cflags -Wall
3021 check_cflags -Wno-parentheses
3022 check_cflags -Wno-switch
3023 check_cflags -Wno-format-zero-length
3024 check_cflags -Wdisabled-optimization
3025 check_cflags -Wpointer-arith
3026 check_cflags -Wredundant-decls
3027 check_cflags -Wno-pointer-sign
3028 check_cflags -Wcast-qual
3029 check_cflags -Wwrite-strings
3030 check_cflags -Wtype-limits
3031 check_cflags -Wundef
3032 check_cflags -Wmissing-prototypes
3033 check_cflags -Wno-pointer-to-int-cast
3034 enabled extra_warnings && check_cflags -Winline
3035
3036 # add some linker flags
3037 check_ldflags -Wl,--warn-common
3038 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3039 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3040
3041 echo "X{};" > $TMPV
3042 if test_ldflags -Wl,--version-script,$TMPV; then
3043     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3044     check_cc <<EOF && enable symver_asm_label
3045 void ff_foo(void) __asm__ ("av_foo@VERSION");
3046 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3047 EOF
3048     check_cc <<EOF && enable symver_gnu_asm
3049 __asm__(".symver ff_foo,av_foo@VERSION");
3050 void ff_foo(void) {}
3051 EOF
3052 fi
3053
3054 if [ -n "$optflags" ]; then
3055     add_cflags $optflags
3056 elif enabled small; then
3057     add_cflags $size_cflags
3058 elif enabled optimizations; then
3059     add_cflags $speed_cflags
3060 else
3061     add_cflags $noopt_cflags
3062 fi
3063 check_cflags -fno-math-errno
3064 check_cflags -fno-signed-zeros
3065
3066 if enabled icc; then
3067     # Just warnings, no remarks
3068     check_cflags -w1
3069     # -wd: Disable following warnings
3070     # 144, 167, 556: -Wno-pointer-sign
3071     # 1292: attribute "foo" ignored
3072     # 10006: ignoring unknown option -fno-signed-zeros
3073     # 10148: ignoring unknown option -Wno-parentheses
3074     # 10156: ignoring option '-W'; no argument required
3075     check_cflags -wd144,167,556,1292,10006,10148,10156
3076     # 11030: Warning unknown option --as-needed
3077     # 10156: ignoring option '-export'; no argument required
3078     check_ldflags -wd10156,11030
3079     # Allow to compile with optimizations
3080     check_ldflags -march=$cpu
3081     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3082     enable ebp_available
3083     if enabled x86_32; then
3084         test ${icc_version%%.*} -ge 11 && \
3085             check_cflags -falign-stack=maintain-16-byte || \
3086             disable aligned_stack
3087     fi
3088 elif enabled ccc; then
3089     # disable some annoying warnings
3090     add_cflags -msg_disable cvtu32to64
3091     add_cflags -msg_disable embedcomment
3092     add_cflags -msg_disable needconstext
3093     add_cflags -msg_disable nomainieee
3094     add_cflags -msg_disable ptrmismatch1
3095     add_cflags -msg_disable unreachcode
3096 elif enabled gcc; then
3097     check_cflags -fno-tree-vectorize
3098     check_cflags -Werror=implicit-function-declaration
3099     check_cflags -Werror=missing-prototypes
3100 elif enabled llvm_gcc; then
3101     check_cflags -mllvm -stack-alignment=16
3102 elif enabled clang; then
3103     check_cflags -mllvm -stack-alignment=16
3104     check_cflags -Qunused-arguments
3105 elif enabled armcc; then
3106     # 2523: use of inline assembler is deprecated
3107     add_cflags -W${armcc_opt},--diag_suppress=2523
3108     add_cflags -W${armcc_opt},--diag_suppress=1207
3109     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3110     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3111     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3112     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3113 elif enabled tms470; then
3114     add_cflags -pds=824 -pds=837
3115 elif enabled pathscale; then
3116     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3117 fi
3118
3119 enabled_any $THREADS_LIST      && enable threads
3120
3121 check_deps $CONFIG_LIST       \
3122            $CONFIG_EXTRA      \
3123            $HAVE_LIST         \
3124            $DECODER_LIST      \
3125            $ENCODER_LIST      \
3126            $HWACCEL_LIST      \
3127            $PARSER_LIST       \
3128            $BSF_LIST          \
3129            $DEMUXER_LIST      \
3130            $MUXER_LIST        \
3131            $FILTER_LIST       \
3132            $INDEV_LIST        \
3133            $OUTDEV_LIST       \
3134            $PROTOCOL_LIST     \
3135            $ACODEC_TESTS      \
3136            $VCODEC_TESTS      \
3137            $LAVF_TESTS        \
3138            $LAVFI_TESTS       \
3139            $SEEK_TESTS        \
3140
3141 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3142
3143 if test $target_os == "haiku"; then
3144     disable memalign
3145     disable posix_memalign
3146 fi
3147
3148 ! enabled_any memalign posix_memalign malloc_aligned &&
3149     enabled_any $need_memalign && enable memalign_hack
3150
3151 echo "install prefix            $prefix"
3152 echo "source path               $source_path"
3153 echo "C compiler                $cc"
3154 echo "ARCH                      $arch ($cpu)"
3155 if test "$build_suffix" != ""; then
3156     echo "build suffix              $build_suffix"
3157 fi
3158 if test "$extra_version" != ""; then
3159     echo "version string suffix     $extra_version"
3160 fi
3161 echo "big-endian                ${bigendian-no}"
3162 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3163 if enabled x86; then
3164     echo "${yasmexe}                      ${yasm-no}"
3165     echo "MMX enabled               ${mmx-no}"
3166     echo "MMX2 enabled              ${mmx2-no}"
3167     echo "3DNow! enabled            ${amd3dnow-no}"
3168     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3169     echo "SSE enabled               ${sse-no}"
3170     echo "SSSE3 enabled             ${ssse3-no}"
3171     echo "AVX enabled               ${avx-no}"
3172     echo "CMOV enabled              ${cmov-no}"
3173     echo "CMOV is fast              ${fast_cmov-no}"
3174     echo "EBX available             ${ebx_available-no}"
3175     echo "EBP available             ${ebp_available-no}"
3176 fi
3177 if enabled arm; then
3178     echo "ARMv5TE enabled           ${armv5te-no}"
3179     echo "ARMv6 enabled             ${armv6-no}"
3180     echo "ARMv6T2 enabled           ${armv6t2-no}"
3181     echo "ARM VFP enabled           ${armvfp-no}"
3182     echo "IWMMXT enabled            ${iwmmxt-no}"
3183     echo "NEON enabled              ${neon-no}"
3184 fi
3185 if enabled mips; then
3186     echo "MMI enabled               ${mmi-no}"
3187 fi
3188 if enabled ppc; then
3189     echo "AltiVec enabled           ${altivec-no}"
3190     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3191     echo "dcbzl available           ${dcbzl-no}"
3192 fi
3193 if enabled sparc; then
3194     echo "VIS enabled               ${vis-no}"
3195 fi
3196 echo "debug symbols             ${debug-no}"
3197 echo "strip symbols             ${stripping-no}"
3198 echo "optimize for size         ${small-no}"
3199 echo "optimizations             ${optimizations-no}"
3200 echo "static                    ${static-no}"
3201 echo "shared                    ${shared-no}"
3202 echo "postprocessing support    ${postproc-no}"
3203 echo "new filter support        ${avfilter-no}"
3204 echo "network support           ${network-no}"
3205 echo "threading support         ${thread_type-no}"
3206 echo "SDL support               ${sdl-no}"
3207 echo "Sun medialib support      ${mlib-no}"
3208 echo "libdxva2 enabled          ${dxva2-no}"
3209 echo "libva enabled             ${vaapi-no}"
3210 echo "libvdpau enabled          ${vdpau-no}"
3211 echo "AVISynth enabled          ${avisynth-no}"
3212 echo "libcelt enabled           ${libcelt-no}"
3213 echo "frei0r enabled            ${frei0r-no}"
3214 echo "libdc1394 support         ${libdc1394-no}"
3215 echo "libdirac enabled          ${libdirac-no}"
3216 echo "libfaac enabled           ${libfaac-no}"
3217 echo "libgsm enabled            ${libgsm-no}"
3218 echo "libmp3lame enabled        ${libmp3lame-no}"
3219 echo "libnut enabled            ${libnut-no}"
3220 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3221 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3222 echo "libopencv support         ${libopencv-no}"
3223 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3224 echo "librtmp enabled           ${librtmp-no}"
3225 echo "libschroedinger enabled   ${libschroedinger-no}"
3226 echo "libspeex enabled          ${libspeex-no}"
3227 echo "libtheora enabled         ${libtheora-no}"
3228 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3229 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3230 echo "libvorbis enabled         ${libvorbis-no}"
3231 echo "libvpx enabled            ${libvpx-no}"
3232 echo "libx264 enabled           ${libx264-no}"
3233 echo "libxavs enabled           ${libxavs-no}"
3234 echo "libxvid enabled           ${libxvid-no}"
3235 echo "openal enabled            ${openal-no}"
3236 echo "zlib enabled              ${zlib-no}"
3237 echo "bzlib enabled             ${bzlib-no}"
3238 echo
3239
3240 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3241     echo "Enabled ${type}s:"
3242     eval list=\$$(toupper $type)_LIST
3243     print_enabled '_*' $list | sort | pr -r -3 -t
3244     echo
3245 done
3246
3247 license="LGPL version 2.1 or later"
3248 if enabled nonfree; then
3249     license="nonfree and unredistributable"
3250 elif enabled gplv3; then
3251     license="GPL version 3 or later"
3252 elif enabled lgplv3; then
3253     license="LGPL version 3 or later"
3254 elif enabled gpl; then
3255     license="GPL version 2 or later"
3256 fi
3257
3258 echo "License: $license"
3259
3260 echo "Creating config.mak and config.h..."
3261
3262 test -e Makefile || $ln_s "$source_path/Makefile" .
3263
3264 enabled stripping || strip="echo skipping strip"
3265
3266 config_files="$TMPH config.mak"
3267
3268 cat > config.mak <<EOF
3269 # Automatically generated by configure - do not modify!
3270 ifndef FFMPEG_CONFIG_MAK
3271 FFMPEG_CONFIG_MAK=1
3272 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3273 prefix=$prefix
3274 LIBDIR=\$(DESTDIR)$libdir
3275 SHLIBDIR=\$(DESTDIR)$shlibdir
3276 INCDIR=\$(DESTDIR)$incdir
3277 BINDIR=\$(DESTDIR)$bindir
3278 DATADIR=\$(DESTDIR)$datadir
3279 MANDIR=\$(DESTDIR)$mandir
3280 SRC_PATH=$source_path
3281 ifndef MAIN_MAKEFILE
3282 SRC_PATH:=\$(SRC_PATH:.%=..%)
3283 endif
3284 CC_IDENT=$cc_ident
3285 ARCH=$arch
3286 CC=$cc
3287 AS=$as
3288 LD=$ld
3289 DEPCC=$dep_cc
3290 YASM=$yasmexe
3291 YASMDEP=$yasmexe
3292 AR=$ar
3293 RANLIB=$ranlib
3294 CP=cp -p
3295 LN_S=$ln_s
3296 STRIP=$strip
3297 CPPFLAGS=$CPPFLAGS
3298 CFLAGS=$CFLAGS
3299 ASFLAGS=$ASFLAGS
3300 AS_O=$CC_O
3301 CC_O=$CC_O
3302 LDFLAGS=$LDFLAGS
3303 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3304 SHFLAGS=$SHFLAGS
3305 YASMFLAGS=$YASMFLAGS
3306 BUILDSUF=$build_suffix
3307 FULLNAME=$FULLNAME
3308 LIBPREF=$LIBPREF
3309 LIBSUF=$LIBSUF
3310 LIBNAME=$LIBNAME
3311 SLIBPREF=$SLIBPREF
3312 SLIBSUF=$SLIBSUF
3313 EXESUF=$EXESUF
3314 EXTRA_VERSION=$extra_version
3315 DEPFLAGS=$DEPFLAGS
3316 CCDEP=$CCDEP
3317 ASDEP=$ASDEP
3318 CC_DEPFLAGS=$CC_DEPFLAGS
3319 AS_DEPFLAGS=$AS_DEPFLAGS
3320 HOSTCC=$host_cc
3321 HOSTCFLAGS=$host_cflags
3322 HOSTEXESUF=$HOSTEXESUF
3323 HOSTLDFLAGS=$host_ldflags
3324 HOSTLIBS=$host_libs
3325 TARGET_EXEC=$target_exec
3326 TARGET_PATH=$target_path
3327 SDL_LIBS=$sdl_libs
3328 SDL_CFLAGS=$sdl_cflags
3329 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3330 EXTRALIBS=$extralibs
3331 INSTALL=$install
3332 LIBTARGET=${LIBTARGET}
3333 SLIBNAME=${SLIBNAME}
3334 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3335 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3336 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3337 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3338 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3339 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3340 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3341 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3342 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3343 EOF
3344
3345 get_version(){
3346     name=$1
3347     file=$source_path/$2
3348     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3349     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3350     lcname=$(tolower $name)
3351     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3352     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3353 }
3354
3355 get_version LIBSWSCALE  libswscale/swscale.h
3356 get_version LIBPOSTPROC libpostproc/postprocess.h
3357 get_version LIBAVCODEC  libavcodec/version.h
3358 get_version LIBAVDEVICE libavdevice/avdevice.h
3359 get_version LIBAVFORMAT libavformat/version.h
3360 get_version LIBAVUTIL   libavutil/avutil.h
3361 get_version LIBAVFILTER libavfilter/avfilter.h
3362
3363 cat > $TMPH <<EOF
3364 /* Automatically generated by configure - do not modify! */
3365 #ifndef FFMPEG_CONFIG_H
3366 #define FFMPEG_CONFIG_H
3367 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3368 #define FFMPEG_LICENSE "$(c_escape $license)"
3369 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3370 #define CC_TYPE "$cc_type"
3371 #define CC_VERSION $cc_version
3372 #define restrict $_restrict
3373 #define EXTERN_PREFIX "${extern_prefix}"
3374 #define EXTERN_ASM ${extern_prefix}
3375 #define SLIBSUF "$SLIBSUF"
3376 EOF
3377
3378 test -n "$malloc_prefix" &&
3379     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3380
3381 if enabled small || disabled optimizations; then
3382     echo "#undef  av_always_inline"  >> $TMPH
3383     if enabled small; then
3384         echo "#define av_always_inline inline"  >> $TMPH
3385     else
3386         echo "#define av_always_inline av_unused"  >> $TMPH
3387     fi
3388 fi
3389
3390 if enabled yasm; then
3391     append config_files $TMPASM
3392     printf '' >$TMPASM
3393 fi
3394
3395 print_config ARCH_   "$config_files" $ARCH_LIST
3396 print_config HAVE_   "$config_files" $HAVE_LIST
3397 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3398                                      $CONFIG_EXTRA      \
3399                                      $DECODER_LIST      \
3400                                      $ENCODER_LIST      \
3401                                      $HWACCEL_LIST      \
3402                                      $PARSER_LIST       \
3403                                      $BSF_LIST          \
3404                                      $DEMUXER_LIST      \
3405                                      $MUXER_LIST        \
3406                                      $FILTER_LIST       \
3407                                      $PROTOCOL_LIST     \
3408                                      $INDEV_LIST        \
3409                                      $OUTDEV_LIST       \
3410
3411 cat >>config.mak <<EOF
3412 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3413 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3414 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3415 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3416 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3417 EOF
3418
3419 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3420 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3421
3422 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3423 cp_if_changed $TMPH config.h
3424 touch .config
3425
3426 enabled yasm && cp_if_changed $TMPASM config.asm
3427
3428 cat > $TMPH <<EOF
3429 /* Generated by ffconf */
3430 #ifndef AVUTIL_AVCONFIG_H
3431 #define AVUTIL_AVCONFIG_H
3432 EOF
3433
3434 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3435
3436 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3437
3438 cp_if_changed $TMPH libavutil/avconfig.h
3439
3440 test -n "$WARNINGS" && printf "\n$WARNINGS"
3441
3442 # build pkg-config files
3443
3444 pkgconfig_generate(){
3445 name=$1
3446 shortname=${name#lib}${build_suffix}
3447 comment=$2
3448 version=$3
3449 libs=$4
3450 requires=$5
3451 enabled ${name#lib} || return 0
3452 mkdir -p $name
3453 cat <<EOF > $name/$name.pc
3454 prefix=$prefix
3455 exec_prefix=\${prefix}
3456 libdir=$libdir
3457 includedir=$incdir
3458
3459 Name: $name
3460 Description: $comment
3461 Version: $version
3462 Requires: $(enabled shared || echo $requires)
3463 Requires.private: $(enabled shared && echo $requires)
3464 Conflicts:
3465 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3466 Libs.private: $(enabled shared && echo $libs)
3467 Cflags: -I\${includedir}
3468 EOF
3469 cat <<EOF > $name/$name-uninstalled.pc
3470 prefix=
3471 exec_prefix=
3472 libdir=\${pcfiledir}
3473 includedir=${source_path}
3474
3475 Name: $name
3476 Description: $comment
3477 Version: $version
3478 Requires: $requires
3479 Conflicts:
3480 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3481 Cflags: -I\${includedir}
3482 EOF
3483 }
3484
3485 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3486 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3487 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3488 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3489 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3490 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3491 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"