lavdev: add libavfilter virtual input device
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swscale        disable libswscale build
91   --disable-postproc       disable libpostproc build
92   --disable-avfilter       disable video filter support [no]
93   --disable-pthreads       disable pthreads [auto]
94   --enable-w32threads      use Win32 threads [no]
95   --enable-x11grab         enable X11 grabbing [no]
96   --disable-network        disable network support [no]
97   --enable-gray            enable full grayscale support (slower color)
98   --disable-swscale-alpha  disable alpha channel support in swscale
99   --disable-fastdiv        disable table-based division
100   --enable-small           optimize for size instead of speed
101   --disable-aandct         disable AAN DCT code
102   --disable-dct            disable DCT code
103   --disable-fft            disable FFT code
104   --disable-golomb         disable Golomb code
105   --disable-huffman        disable Huffman code
106   --disable-lpc            disable LPC code
107   --disable-mdct           disable MDCT code
108   --disable-rdft           disable RDFT code
109   --enable-vaapi           enable VAAPI code [autodetect]
110   --enable-vdpau           enable VDPAU code [autodetect]
111   --disable-dxva2          disable DXVA2 code
112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
115   --disable-everything     disable all components listed below
116   --disable-encoder=NAME   disable encoder NAME
117   --enable-encoder=NAME    enable encoder NAME
118   --disable-encoders       disable all encoders
119   --disable-decoder=NAME   disable decoder NAME
120   --enable-decoder=NAME    enable decoder NAME
121   --disable-decoders       disable all decoders
122   --disable-hwaccel=NAME   disable hwaccel NAME
123   --enable-hwaccel=NAME    enable hwaccel NAME
124   --disable-hwaccels       disable all hwaccels
125   --disable-muxer=NAME     disable muxer NAME
126   --enable-muxer=NAME      enable muxer NAME
127   --disable-muxers         disable all muxers
128   --disable-demuxer=NAME   disable demuxer NAME
129   --enable-demuxer=NAME    enable demuxer NAME
130   --disable-demuxers       disable all demuxers
131   --enable-parser=NAME     enable parser NAME
132   --disable-parser=NAME    disable parser NAME
133   --disable-parsers        disable all parsers
134   --enable-bsf=NAME        enable bitstream filter NAME
135   --disable-bsf=NAME       disable bitstream filter NAME
136   --disable-bsfs           disable all bitstream filters
137   --enable-protocol=NAME   enable protocol NAME
138   --disable-protocol=NAME  disable protocol NAME
139   --disable-protocols      disable all protocols
140   --disable-indev=NAME     disable input device NAME
141   --disable-outdev=NAME    disable output device NAME
142   --disable-indevs         disable input devices
143   --disable-outdevs        disable output devices
144   --disable-devices        disable all devices
145   --enable-filter=NAME     enable filter NAME
146   --disable-filter=NAME    disable filter NAME
147   --disable-filters        disable all filters
148   --list-decoders          show all available decoders
149   --list-encoders          show all available encoders
150   --list-hwaccels          show all available hardware accelerators
151   --list-muxers            show all available muxers
152   --list-demuxers          show all available demuxers
153   --list-parsers           show all available parsers
154   --list-protocols         show all available protocols
155   --list-bsfs              show all available bitstream filters
156   --list-indevs            show all available input devices
157   --list-outdevs           show all available output devices
158   --list-filters           show all available filters
159
160 External library support:
161   --enable-avisynth        enable reading of AVISynth script files [no]
162   --enable-bzlib           enable bzlib [autodetect]
163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
164   --enable-frei0r          enable frei0r video filtering
165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167   --enable-libopencv       enable video filtering via libopencv [no]
168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
169                            and libraw1394 [no]
170   --enable-libdirac        enable Dirac support via libdirac [no]
171   --enable-libfaac         enable FAAC support via libfaac [no]
172   --enable-libfreetype     enable libfreetype [no]
173   --enable-libgsm          enable GSM support via libgsm [no]
174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
175   --enable-libnut          enable NUT (de)muxing via libnut,
176                            native (de)muxer exists [no]
177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
180   --enable-libspeex        enable Speex decoding via libspeex [no]
181   --enable-libtheora       enable Theora encoding via libtheora [no]
182   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
183   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
185                            native implementation exists [no]
186   --enable-libvpx          enable VP8 support via libvpx [no]
187   --enable-libx264         enable H.264 encoding via x264 [no]
188   --enable-libxavs         enable AVS encoding via xavs [no]
189   --enable-libxvid         enable Xvid encoding via xvidcore,
190                            native MPEG-4/Xvid encoder exists [no]
191   --enable-openal          enable OpenAL 1.1 capture support [no]
192   --enable-mlib            enable Sun medialib [no]
193   --enable-zlib            enable zlib [autodetect]
194
195 Advanced options (experts only):
196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
197   --enable-cross-compile   assume a cross-compiler is used
198   --sysroot=PATH           root of cross-build tree
199   --sysinclude=PATH        location of cross-build system headers
200   --target-os=OS           compiler targets OS [$target_os]
201   --target-exec=CMD        command to run executables on target
202   --target-path=DIR        path to view of build directory on target
203   --nm=NM                  use nm tool
204   --ar=AR                  use archive tool AR [$ar_default]
205   --as=AS                  use assembler AS [$as_default]
206   --cc=CC                  use C compiler CC [$cc_default]
207   --ld=LD                  use linker LD
208   --host-cc=HOSTCC         use host C compiler HOSTCC
209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
211   --host-libs=HLIBS        use libs HLIBS when linking for host
212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
215   --extra-version=STRING   version string suffix []
216   --build-suffix=SUFFIX    library name suffix []
217   --arch=ARCH              select architecture [$arch]
218   --cpu=CPU                select the minimum required CPU (affects
219                            instruction selection, may crash on older CPUs)
220   --disable-asm            disable all assembler optimizations
221   --disable-altivec        disable AltiVec optimizations
222   --disable-amd3dnow       disable 3DNow! optimizations
223   --disable-amd3dnowext    disable 3DNow! extended optimizations
224   --disable-mmx            disable MMX optimizations
225   --disable-mmx2           disable MMX2 optimizations
226   --disable-sse            disable SSE optimizations
227   --disable-ssse3          disable SSSE3 optimizations
228   --disable-avx            disable AVX optimizations
229   --disable-armv5te        disable armv5te optimizations
230   --disable-armv6          disable armv6 optimizations
231   --disable-armv6t2        disable armv6t2 optimizations
232   --disable-armvfp         disable ARM VFP optimizations
233   --disable-iwmmxt         disable iwmmxt optimizations
234   --disable-mmi            disable MMI optimizations
235   --disable-neon           disable neon optimizations
236   --disable-vis            disable VIS optimizations
237   --disable-yasm           disable use of yasm assembler
238   --enable-pic             build position-independent code
239   --malloc-prefix=PFX      prefix malloc and related names with PFX
240   --enable-sram            allow use of on-chip SRAM
241   --disable-symver         disable symbol versioning
242   --optflags               override optimization-related compiler flags
243
244 Developer options (useful when working on FFmpeg itself):
245   --disable-debug          disable debugging symbols
246   --enable-debug=LEVEL     set the debug level [$debuglevel]
247   --disable-optimizations  disable compiler optimizations
248   --enable-extra-warnings  enable more compiler warnings
249   --disable-stripping      disable stripping of executables and shared libraries
250   --samples=PATH           location of test samples for FATE, if not set use
251                            \$FATE_SAMPLES at make invocation time.
252
253 NOTE: Object files are built at the place where configure is launched.
254 EOF
255   exit 0
256 }
257
258 quotes='""'
259
260 log(){
261     echo "$@" >> $logfile
262 }
263
264 log_file(){
265     log BEGIN $1
266     pr -n -t $1 >> $logfile
267     log END $1
268 }
269
270 echolog(){
271     log "$@"
272     echo "$@"
273 }
274
275 warn(){
276     log "WARNING: $*"
277     WARNINGS="${WARNINGS}WARNING: $*\n"
278 }
279
280 die(){
281     echolog "$@"
282     cat <<EOF
283
284 If you think configure made a mistake, make sure you are using the latest
285 version from Git.  If the latest version fails, report the problem to the
286 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
287 EOF
288     if disabled logging; then
289         cat <<EOF
290 Rerun configure with logging enabled (do not use --disable-logging), and
291 include the log this produces with your report.
292 EOF
293     else
294 cat <<EOF
295 Include the log file "$logfile" produced by configure as this will help
296 solving the problem.
297 EOF
298     fi
299     exit 1
300 }
301
302 # Avoid locale weirdness, besides we really just want to translate ASCII.
303 toupper(){
304     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
305 }
306
307 tolower(){
308     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
309 }
310
311 c_escape(){
312     echo "$*" | sed 's/["\\]/\\\0/g'
313 }
314
315 sh_quote(){
316     v=$(echo "$1" | sed "s/'/'\\\\''/g")
317     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
318     echo "$v"
319 }
320
321 cleanws(){
322     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
323 }
324
325 filter(){
326     pat=$1
327     shift
328     for v; do
329         eval "case $v in $pat) echo $v ;; esac"
330     done
331 }
332
333 filter_out(){
334     pat=$1
335     shift
336     for v; do
337         eval "case $v in $pat) ;; *) echo $v ;; esac"
338     done
339 }
340
341 map(){
342     m=$1
343     shift
344     for v; do eval $m; done
345 }
346
347 set_all(){
348     value=$1
349     shift
350     for var in $*; do
351         eval $var=$value
352     done
353 }
354
355 set_weak(){
356     value=$1
357     shift
358     for var; do
359         eval : \${$var:=$value}
360     done
361 }
362
363 set_safe(){
364     var=$1
365     shift
366     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
367 }
368
369 get_safe(){
370     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
371 }
372
373 pushvar(){
374     for var in $*; do
375         eval level=\${${var}_level:=0}
376         eval ${var}_${level}="\$$var"
377         eval ${var}_level=$(($level+1))
378     done
379 }
380
381 popvar(){
382     for var in $*; do
383         eval level=\${${var}_level:-0}
384         test $level = 0 && continue
385         eval level=$(($level-1))
386         eval $var="\${${var}_${level}}"
387         eval ${var}_level=$level
388         eval unset ${var}_${level}
389     done
390 }
391
392 enable(){
393     set_all yes $*
394 }
395
396 disable(){
397     set_all no $*
398 }
399
400 enable_weak(){
401     set_weak yes $*
402 }
403
404 disable_weak(){
405     set_weak no $*
406 }
407
408 enable_safe(){
409     for var; do
410         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
411     done
412 }
413
414 disable_safe(){
415     for var; do
416         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
417     done
418 }
419
420 do_enable_deep(){
421     for var; do
422         enabled $var && continue
423         eval sel="\$${var}_select"
424         eval sgs="\$${var}_suggest"
425         pushvar var sgs
426         enable_deep $sel
427         popvar sgs
428         enable_deep_weak $sgs
429         popvar var
430     done
431 }
432
433 enable_deep(){
434     do_enable_deep $*
435     enable $*
436 }
437
438 enable_deep_weak(){
439     do_enable_deep $*
440     enable_weak $*
441 }
442
443 enabled(){
444     test "${1#!}" = "$1" && op== || op=!=
445     eval test "x\$${1#!}" $op "xyes"
446 }
447
448 disabled(){
449     test "${1#!}" = "$1" && op== || op=!=
450     eval test "x\$${1#!}" $op "xno"
451 }
452
453 enabled_all(){
454     for opt; do
455         enabled $opt || return 1
456     done
457 }
458
459 disabled_all(){
460     for opt; do
461         disabled $opt || return 1
462     done
463 }
464
465 enabled_any(){
466     for opt; do
467         enabled $opt && return 0
468     done
469 }
470
471 disabled_any(){
472     for opt; do
473         disabled $opt && return 0
474     done
475     return 1
476 }
477
478 set_default(){
479     for opt; do
480         eval : \${$opt:=\$${opt}_default}
481     done
482 }
483
484 is_in(){
485     value=$1
486     shift
487     for var in $*; do
488         [ $var = $value ] && return 0
489     done
490     return 1
491 }
492
493 check_deps(){
494     for cfg; do
495         cfg="${cfg#!}"
496         enabled ${cfg}_checking && die "Circular dependency for $cfg."
497         disabled ${cfg}_checking && continue
498         enable ${cfg}_checking
499
500         eval dep_all="\$${cfg}_deps"
501         eval dep_any="\$${cfg}_deps_any"
502         eval dep_sel="\$${cfg}_select"
503         eval dep_sgs="\$${cfg}_suggest"
504         eval dep_ifa="\$${cfg}_if"
505         eval dep_ifn="\$${cfg}_if_any"
506
507         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
508         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
509         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
510
511         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
512         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
513         enabled_all  $dep_all || disable $cfg
514         enabled_any  $dep_any || disable $cfg
515         disabled_any $dep_sel && disable $cfg
516
517         if enabled $cfg; then
518             eval dep_extralibs="\$${cfg}_extralibs"
519             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
520             enable_deep $dep_sel
521             enable_deep_weak $dep_sgs
522         fi
523
524         disable ${cfg}_checking
525     done
526 }
527
528 print_config_h(){
529     enabled $1 && v=1 || v=0
530     echo "#define $2 $v"
531 }
532
533 print_config_mak(){
534     enabled $1 && v= || v=!
535     echo "$v$2=yes"
536 }
537
538 print_config_asm(){
539     enabled $1 && echo "%define $2"
540 }
541
542 print_config(){
543     pfx=$1
544     files=$2
545     shift 2
546     for cfg; do
547         ucname="$(toupper $cfg)"
548         for f in $files; do
549             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
550         done
551     done
552 }
553
554 print_enabled(){
555     test "$1" = -n && end=" " && shift || end="\n"
556     suf=$1
557     shift
558     for v; do
559         enabled $v && printf "%s$end" ${v%$suf};
560     done
561 }
562
563 append(){
564     var=$1
565     shift
566     eval "$var=\"\$$var $*\""
567 }
568
569 prepend(){
570     var=$1
571     shift
572     eval "$var=\"$* \$$var\""
573 }
574
575 add_cppflags(){
576     append CPPFLAGS $($filter_cppflags "$@")
577 }
578
579 add_cflags(){
580     append CFLAGS $($filter_cflags "$@")
581 }
582
583 add_asflags(){
584     append ASFLAGS $($filter_asflags "$@")
585 }
586
587 add_ldflags(){
588     append LDFLAGS "$@"
589 }
590
591 add_extralibs(){
592     prepend extralibs "$@"
593 }
594
595 check_cmd(){
596     log "$@"
597     "$@" >> $logfile 2>&1
598 }
599
600 check_cc(){
601     log check_cc "$@"
602     cat > $TMPC
603     log_file $TMPC
604     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
605 }
606
607 check_cpp(){
608     log check_cpp "$@"
609     cat > $TMPC
610     log_file $TMPC
611     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
612 }
613
614 check_as(){
615     log check_as "$@"
616     cat > $TMPC
617     log_file $TMPC
618     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
619 }
620
621 check_asm(){
622     log check_asm "$@"
623     name="$1"
624     code="$2"
625     shift 2
626     disable $name
627     check_as "$@" <<EOF && enable $name
628 void foo(void){ __asm__ volatile($code); }
629 EOF
630 }
631
632 check_yasm(){
633     log check_yasm "$@"
634     echo "$1" > $TMPS
635     log_file $TMPS
636     shift 1
637     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
638 }
639
640 check_ld(){
641     log check_ld "$@"
642     flags=''
643     libs=''
644     for f; do
645         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
646     done
647     check_cc $($filter_cflags $flags) || return
648     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
649 }
650
651 check_cppflags(){
652     log check_cppflags "$@"
653     set -- $($filter_cppflags "$@")
654     check_cc "$@" <<EOF && append CPPFLAGS "$@"
655 int x;
656 EOF
657 }
658
659 check_cflags(){
660     log check_cflags "$@"
661     set -- $($filter_cflags "$@")
662     check_cc "$@" <<EOF && append CFLAGS "$@"
663 int x;
664 EOF
665 }
666
667 test_ldflags(){
668     log test_ldflags "$@"
669     check_ld "$@" <<EOF
670 int main(void){ return 0; }
671 EOF
672 }
673
674 check_ldflags(){
675     log check_ldflags "$@"
676     test_ldflags "$@" && add_ldflags "$@"
677 }
678
679 check_header(){
680     log check_header "$@"
681     header=$1
682     shift
683     disable_safe $header
684     check_cpp "$@" <<EOF && enable_safe $header
685 #include <$header>
686 int x;
687 EOF
688 }
689
690 check_func(){
691     log check_func "$@"
692     func=$1
693     shift
694     disable $func
695     check_ld "$@" <<EOF && enable $func
696 extern int $func();
697 int main(void){ $func(); }
698 EOF
699 }
700
701 check_mathfunc(){
702     log check_mathfunc "$@"
703     func=$1
704     shift
705     disable $func
706     check_ld "$@" <<EOF && enable $func
707 #include <math.h>
708 float foo(float f) { return $func(f); }
709 int main(void){ return 0; }
710 EOF
711 }
712
713 check_func_headers(){
714     log check_func_headers "$@"
715     headers=$1
716     funcs=$2
717     shift 2
718     {
719         for hdr in $headers; do
720             echo "#include <$hdr>"
721         done
722         for func in $funcs; do
723             echo "long check_$func(void) { return (long) $func; }"
724         done
725         echo "int main(void) { return 0; }"
726     } | check_ld "$@" && enable $funcs && enable_safe $headers
727 }
728
729 check_cpp_condition(){
730     log check_cpp_condition "$@"
731     header=$1
732     condition=$2
733     shift 2
734     check_cpp $($filter_cppflags "$@") <<EOF
735 #include <$header>
736 #if !($condition)
737 #error "unsatisfied condition: $condition"
738 #endif
739 EOF
740 }
741
742 check_lib(){
743     log check_lib "$@"
744     header="$1"
745     func="$2"
746     shift 2
747     check_header $header && check_func $func "$@" && add_extralibs "$@"
748 }
749
750 check_lib2(){
751     log check_lib2 "$@"
752     headers="$1"
753     funcs="$2"
754     shift 2
755     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
756 }
757
758 check_pkg_config(){
759     log check_pkg_config "$@"
760     pkg="$1"
761     headers="$2"
762     funcs="$3"
763     shift 3
764     $pkg_config --exists $pkg 2>/dev/null || return
765     pkg_cflags=$($pkg_config --cflags $pkg)
766     pkg_libs=$($pkg_config --libs $pkg)
767     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
768         set_safe ${pkg}_cflags $pkg_cflags   &&
769         set_safe ${pkg}_libs   $pkg_libs
770 }
771
772 check_exec(){
773     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
774 }
775
776 check_exec_crash(){
777     code=$(cat)
778
779     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
780     # are safe but may not be available everywhere.  Thus we use
781     # raise(SIGTERM) instead.  The check is run in a subshell so we
782     # can redirect the "Terminated" message from the shell.  SIGBUS
783     # is not defined by standard C so it is used conditionally.
784
785     (check_exec "$@") >> $logfile 2>&1 <<EOF
786 #include <signal.h>
787 static void sighandler(int sig){
788     raise(SIGTERM);
789 }
790 int main(void){
791     signal(SIGILL, sighandler);
792     signal(SIGFPE, sighandler);
793     signal(SIGSEGV, sighandler);
794 #ifdef SIGBUS
795     signal(SIGBUS, sighandler);
796 #endif
797     { $code }
798 }
799 EOF
800 }
801
802 check_type(){
803     log check_type "$@"
804     headers=$1
805     type=$2
806     shift 2
807     disable_safe "$type"
808     incs=""
809     for hdr in $headers; do
810         incs="$incs
811 #include <$hdr>"
812     done
813     check_cc "$@" <<EOF && enable_safe "$type"
814 $incs
815 $type v;
816 EOF
817 }
818
819 check_struct(){
820     log check_type "$@"
821     headers=$1
822     struct=$2
823     member=$3
824     shift 3
825     disable_safe "${struct}_${member}"
826     incs=""
827     for hdr in $headers; do
828         incs="$incs
829 #include <$hdr>"
830     done
831     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
832 $incs
833 const void *p = &(($struct *)0)->$member;
834 EOF
835 }
836
837 require(){
838     name="$1"
839     header="$2"
840     func="$3"
841     shift 3
842     check_lib $header $func "$@" || die "ERROR: $name not found"
843 }
844
845 require2(){
846     name="$1"
847     headers="$2"
848     func="$3"
849     shift 3
850     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
851 }
852
853 require_pkg_config(){
854     pkg="$1"
855     check_pkg_config "$@" || die "ERROR: $pkg not found"
856     add_cflags    $(get_safe ${pkg}_cflags)
857     add_extralibs $(get_safe ${pkg}_libs)
858 }
859
860 check_host_cc(){
861     log check_host_cc "$@"
862     cat > $TMPC
863     log_file $TMPC
864     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
865 }
866
867 check_host_cflags(){
868     log check_host_cflags "$@"
869     check_host_cc "$@" <<EOF && append host_cflags "$@"
870 int x;
871 EOF
872 }
873
874 apply(){
875     file=$1
876     shift
877     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
878 }
879
880 cp_if_changed(){
881     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
882     mkdir -p "$(dirname $2)"
883     cp -f "$1" "$2"
884 }
885
886 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
887 # system-dependent things.
888
889 COMPONENT_LIST="
890     bsfs
891     decoders
892     demuxers
893     encoders
894     filters
895     hwaccels
896     indevs
897     muxers
898     outdevs
899     parsers
900     protocols
901 "
902
903 CONFIG_LIST="
904     $COMPONENT_LIST
905     aandct
906     ac3dsp
907     avcodec
908     avdevice
909     avfilter
910     avformat
911     avisynth
912     bzlib
913     crystalhd
914     dct
915     doc
916     dwt
917     dxva2
918     fastdiv
919     ffmpeg
920     ffplay
921     ffprobe
922     ffserver
923     fft
924     frei0r
925     golomb
926     gpl
927     gray
928     h264dsp
929     h264pred
930     hardcoded_tables
931     huffman
932     libcelt
933     libdc1394
934     libdirac
935     libfaac
936     libfreetype
937     libgsm
938     libmp3lame
939     libnut
940     libopencore_amrnb
941     libopencore_amrwb
942     libopencv
943     libopenjpeg
944     librtmp
945     libschroedinger
946     libspeex
947     libtheora
948     libvo_aacenc
949     libvo_amrwbenc
950     libvorbis
951     libvpx
952     libx264
953     libxavs
954     libxvid
955     lpc
956     lsp
957     mdct
958     memalign_hack
959     mlib
960     mpegaudiodsp
961     network
962     nonfree
963     openal
964     pic
965     postproc
966     rdft
967     rtpdec
968     runtime_cpudetect
969     shared
970     sinewin
971     small
972     sram
973     static
974     swscale
975     swscale_alpha
976     thumb
977     vaapi
978     vdpau
979     version3
980     x11grab
981     zlib
982 "
983
984 THREADS_LIST='
985     pthreads
986     w32threads
987 '
988
989 ARCH_LIST='
990     alpha
991     arm
992     avr32
993     avr32_ap
994     avr32_uc
995     bfin
996     ia64
997     m68k
998     mips
999     mips64
1000     parisc
1001     ppc
1002     ppc64
1003     s390
1004     sh4
1005     sparc
1006     sparc64
1007     tomi
1008     x86
1009     x86_32
1010     x86_64
1011 '
1012
1013 ARCH_EXT_LIST='
1014     altivec
1015     amd3dnow
1016     amd3dnowext
1017     armv5te
1018     armv6
1019     armv6t2
1020     armvfp
1021     avx
1022     iwmmxt
1023     mmi
1024     mmx
1025     mmx2
1026     neon
1027     ppc4xx
1028     sse
1029     ssse3
1030     vfpv3
1031     vis
1032 '
1033
1034 HAVE_LIST_PUB='
1035     bigendian
1036     fast_unaligned
1037 '
1038
1039 HAVE_LIST="
1040     $ARCH_EXT_LIST
1041     $HAVE_LIST_PUB
1042     $THREADS_LIST
1043     aligned_stack
1044     alsa_asoundlib_h
1045     altivec_h
1046     arpa_inet_h
1047     attribute_may_alias
1048     attribute_packed
1049     bswap
1050     closesocket
1051     cmov
1052     dcbzl
1053     dev_bktr_ioctl_bt848_h
1054     dev_bktr_ioctl_meteor_h
1055     dev_ic_bt8xx_h
1056     dev_video_meteor_ioctl_meteor_h
1057     dev_video_bktr_ioctl_bt848_h
1058     dlfcn_h
1059     dlopen
1060     dos_paths
1061     ebp_available
1062     ebx_available
1063     exp2
1064     exp2f
1065     fast_64bit
1066     fast_clz
1067     fast_cmov
1068     fcntl
1069     fork
1070     getaddrinfo
1071     gethrtime
1072     GetProcessMemoryInfo
1073     GetProcessTimes
1074     getrusage
1075     gnu_as
1076     struct_rusage_ru_maxrss
1077     ibm_asm
1078     inet_aton
1079     inline_asm
1080     isatty
1081     kbhit
1082     ldbrx
1083     llrint
1084     llrintf
1085     local_aligned_16
1086     local_aligned_8
1087     localtime_r
1088     log2
1089     log2f
1090     loongson
1091     lrint
1092     lrintf
1093     lzo1x_999_compress
1094     machine_ioctl_bt848_h
1095     machine_ioctl_meteor_h
1096     malloc_h
1097     MapViewOfFile
1098     memalign
1099     mkstemp
1100     mmap
1101     posix_memalign
1102     round
1103     roundf
1104     sdl
1105     sdl_video_size
1106     setmode
1107     sndio_h
1108     socklen_t
1109     soundcard_h
1110     poll_h
1111     setrlimit
1112     strerror_r
1113     strptime
1114     strtok_r
1115     struct_addrinfo
1116     struct_ipv6_mreq
1117     struct_sockaddr_in6
1118     struct_sockaddr_sa_len
1119     struct_sockaddr_storage
1120     symver
1121     symver_gnu_asm
1122     symver_asm_label
1123     sys_mman_h
1124     sys_resource_h
1125     sys_select_h
1126     sys_soundcard_h
1127     sys_videoio_h
1128     termios_h
1129     threads
1130     trunc
1131     truncf
1132     vfp_args
1133     VirtualAlloc
1134     winsock2_h
1135     xform_asm
1136     xmm_clobbers
1137     yasm
1138 "
1139
1140 # options emitted with CONFIG_ prefix but not available on command line
1141 CONFIG_EXTRA="
1142     avutil
1143     gplv3
1144     lgplv3
1145 "
1146
1147 CMDLINE_SELECT="
1148     $ARCH_EXT_LIST
1149     $CONFIG_LIST
1150     $THREADS_LIST
1151     asm
1152     cross_compile
1153     debug
1154     extra_warnings
1155     logging
1156     optimizations
1157     stripping
1158     symver
1159     yasm
1160 "
1161
1162 PATHS_LIST='
1163     bindir
1164     datadir
1165     incdir
1166     libdir
1167     mandir
1168     prefix
1169     shlibdir
1170 '
1171
1172 CMDLINE_SET="
1173     $PATHS_LIST
1174     ar
1175     arch
1176     as
1177     build_suffix
1178     cc
1179     cpu
1180     cross_prefix
1181     dep_cc
1182     extra_version
1183     host_cc
1184     host_cflags
1185     host_ldflags
1186     host_libs
1187     host_os
1188     install
1189     ld
1190     logfile
1191     malloc_prefix
1192     nm
1193     optflags
1194     pkg_config
1195     samples
1196     strip
1197     sysinclude
1198     sysroot
1199     target_exec
1200     target_os
1201     target_path
1202 "
1203
1204 CMDLINE_APPEND="
1205     extra_cflags
1206 "
1207
1208 # code dependency declarations
1209
1210 # architecture extensions
1211
1212 armv5te_deps="arm"
1213 armv6_deps="arm"
1214 armv6t2_deps="arm"
1215 armvfp_deps="arm"
1216 iwmmxt_deps="arm"
1217 neon_deps="arm"
1218 vfpv3_deps="armvfp"
1219
1220 mmi_deps="mips"
1221
1222 altivec_deps="ppc"
1223 ppc4xx_deps="ppc"
1224
1225 vis_deps="sparc"
1226
1227 x86_64_suggest="cmov fast_cmov"
1228 amd3dnow_deps="mmx"
1229 amd3dnowext_deps="amd3dnow"
1230 mmx_deps="x86"
1231 mmx2_deps="mmx"
1232 sse_deps="mmx"
1233 ssse3_deps="sse"
1234 avx_deps="ssse3"
1235
1236 aligned_stack_if_any="ppc x86"
1237 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1238 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1239 fast_unaligned_if_any="armv6 ppc x86"
1240
1241 need_memalign="altivec neon sse"
1242 inline_asm_deps="!tms470"
1243
1244 symver_if_any="symver_asm_label symver_gnu_asm"
1245
1246 # subsystems
1247 dct_select="rdft"
1248 mdct_select="fft"
1249 rdft_select="fft"
1250 mpegaudiodsp_select="dct"
1251
1252 # decoders / encoders / hardware accelerators
1253 aac_decoder_select="mdct sinewin"
1254 aac_encoder_select="mdct sinewin"
1255 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1256 ac3_decoder_select="mdct ac3dsp ac3_parser"
1257 ac3_encoder_select="mdct ac3dsp"
1258 ac3_fixed_encoder_select="mdct ac3dsp"
1259 alac_encoder_select="lpc"
1260 amrnb_decoder_select="lsp"
1261 amrwb_decoder_select="lsp"
1262 atrac1_decoder_select="mdct sinewin"
1263 atrac3_decoder_select="mdct"
1264 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1265 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1266 cavs_decoder_select="golomb"
1267 cook_decoder_select="mdct sinewin"
1268 cscd_decoder_suggest="zlib"
1269 dca_decoder_select="mdct"
1270 dnxhd_encoder_select="aandct"
1271 dxa_decoder_select="zlib"
1272 eac3_decoder_select="ac3_decoder"
1273 eac3_encoder_select="mdct ac3dsp"
1274 eamad_decoder_select="aandct"
1275 eatgq_decoder_select="aandct"
1276 eatqi_decoder_select="aandct"
1277 ffv1_decoder_select="golomb"
1278 flac_decoder_select="golomb"
1279 flac_encoder_select="golomb lpc"
1280 flashsv_decoder_select="zlib"
1281 flashsv_encoder_select="zlib"
1282 flashsv2_encoder_select="zlib"
1283 flashsv2_decoder_select="zlib"
1284 flv_decoder_select="h263_decoder"
1285 flv_encoder_select="h263_encoder"
1286 fraps_decoder_select="huffman"
1287 h261_encoder_select="aandct"
1288 h263_decoder_select="h263_parser"
1289 h263_encoder_select="aandct"
1290 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1291 h263i_decoder_select="h263_decoder"
1292 h263p_encoder_select="h263_encoder"
1293 h264_decoder_select="golomb h264dsp h264pred"
1294 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1295 h264_dxva2_hwaccel_deps="dxva2api_h"
1296 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1297 h264_vaapi_hwaccel_select="vaapi"
1298 h264_vdpau_decoder_select="vdpau h264_decoder"
1299 imc_decoder_select="fft mdct sinewin"
1300 jpegls_decoder_select="golomb"
1301 jpegls_encoder_select="golomb"
1302 ljpeg_encoder_select="aandct"
1303 loco_decoder_select="golomb"
1304 mjpeg_encoder_select="aandct"
1305 mlp_decoder_select="mlp_parser"
1306 mp1_decoder_select="mpegaudiodsp"
1307 mp2_decoder_select="mpegaudiodsp"
1308 mp3adu_decoder_select="mpegaudiodsp"
1309 mp3_decoder_select="mpegaudiodsp"
1310 mp3on4_decoder_select="mpegaudiodsp"
1311 mp1float_decoder_select="mpegaudiodsp"
1312 mp2float_decoder_select="mpegaudiodsp"
1313 mp3adufloat_decoder_select="mpegaudiodsp"
1314 mp3float_decoder_select="mpegaudiodsp"
1315 mp3on4float_decoder_select="mpegaudiodsp"
1316 mpeg1video_encoder_select="aandct"
1317 mpeg2video_encoder_select="aandct"
1318 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1319 mpeg4_encoder_select="h263_encoder"
1320 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1321 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1322 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1323 mpeg2_crystalhd_decoder_select="crystalhd"
1324 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1325 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1326 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1327 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1328 mpeg4_crystalhd_decoder_select="crystalhd"
1329 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1330 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1331 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1332 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1333 msmpeg4_crystalhd_decoder_select="crystalhd"
1334 msmpeg4v1_decoder_select="h263_decoder"
1335 msmpeg4v1_encoder_select="h263_encoder"
1336 msmpeg4v2_decoder_select="h263_decoder"
1337 msmpeg4v2_encoder_select="h263_encoder"
1338 msmpeg4v3_decoder_select="h263_decoder"
1339 msmpeg4v3_encoder_select="h263_encoder"
1340 nellymoser_decoder_select="mdct sinewin"
1341 nellymoser_encoder_select="mdct sinewin"
1342 png_decoder_select="zlib"
1343 png_encoder_select="zlib"
1344 qcelp_decoder_select="lsp"
1345 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1346 ra_144_encoder_select="lpc"
1347 rv10_decoder_select="h263_decoder"
1348 rv10_encoder_select="h263_encoder"
1349 rv20_decoder_select="h263_decoder"
1350 rv20_encoder_select="h263_encoder"
1351 rv30_decoder_select="golomb h264pred"
1352 rv40_decoder_select="golomb h264pred"
1353 shorten_decoder_select="golomb"
1354 sipr_decoder_select="lsp"
1355 snow_decoder_select="dwt"
1356 snow_encoder_select="aandct dwt"
1357 sonic_decoder_select="golomb"
1358 sonic_encoder_select="golomb"
1359 sonic_ls_encoder_select="golomb"
1360 svq1_encoder_select="aandct"
1361 svq3_decoder_select="golomb h264dsp h264pred"
1362 svq3_decoder_suggest="zlib"
1363 theora_decoder_select="vp3_decoder"
1364 tiff_decoder_suggest="zlib"
1365 tiff_encoder_suggest="zlib"
1366 truehd_decoder_select="mlp_decoder"
1367 tscc_decoder_select="zlib"
1368 twinvq_decoder_select="mdct lsp sinewin"
1369 vc1_decoder_select="h263_decoder"
1370 vc1_crystalhd_decoder_select="crystalhd"
1371 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1372 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1373 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1374 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1375 vorbis_decoder_select="mdct"
1376 vorbis_encoder_select="mdct"
1377 vp6_decoder_select="huffman"
1378 vp6a_decoder_select="vp6_decoder"
1379 vp6f_decoder_select="vp6_decoder"
1380 vp8_decoder_select="h264pred"
1381 wmapro_decoder_select="mdct sinewin"
1382 wmav1_decoder_select="mdct sinewin"
1383 wmav1_encoder_select="mdct sinewin"
1384 wmav2_decoder_select="mdct sinewin"
1385 wmav2_encoder_select="mdct sinewin"
1386 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1387 wmv1_decoder_select="h263_decoder"
1388 wmv1_encoder_select="h263_encoder"
1389 wmv2_decoder_select="h263_decoder"
1390 wmv2_encoder_select="h263_encoder"
1391 wmv3_decoder_select="vc1_decoder"
1392 wmv3_crystalhd_decoder_select="crystalhd"
1393 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1394 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1395 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1396 zlib_decoder_select="zlib"
1397 zlib_encoder_select="zlib"
1398 zmbv_decoder_select="zlib"
1399 zmbv_encoder_select="zlib"
1400
1401 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1402 vaapi_deps="va_va_h"
1403 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1404
1405 # parsers
1406 h264_parser_select="golomb h264dsp h264pred"
1407
1408 # external libraries
1409 libcelt_decoder_deps="libcelt"
1410 libdirac_decoder_deps="libdirac !libschroedinger"
1411 libdirac_encoder_deps="libdirac"
1412 libfaac_encoder_deps="libfaac"
1413 libgsm_decoder_deps="libgsm"
1414 libgsm_encoder_deps="libgsm"
1415 libgsm_ms_decoder_deps="libgsm"
1416 libgsm_ms_encoder_deps="libgsm"
1417 libmp3lame_encoder_deps="libmp3lame"
1418 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1419 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1420 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1421 libopenjpeg_decoder_deps="libopenjpeg"
1422 libschroedinger_decoder_deps="libschroedinger"
1423 libschroedinger_encoder_deps="libschroedinger"
1424 libspeex_decoder_deps="libspeex"
1425 libtheora_encoder_deps="libtheora"
1426 libvo_aacenc_encoder_deps="libvo_aacenc"
1427 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1428 libvorbis_encoder_deps="libvorbis"
1429 libvpx_decoder_deps="libvpx"
1430 libvpx_encoder_deps="libvpx"
1431 libx264_encoder_deps="libx264"
1432 libxavs_encoder_deps="libxavs"
1433 libxvid_encoder_deps="libxvid"
1434
1435 # demuxers / muxers
1436 ac3_demuxer_select="ac3_parser"
1437 asf_stream_muxer_select="asf_muxer"
1438 avisynth_demuxer_deps="avisynth"
1439 dirac_demuxer_select="dirac_parser"
1440 eac3_demuxer_select="ac3_parser"
1441 flac_demuxer_select="flac_parser"
1442 ipod_muxer_select="mov_muxer"
1443 libnut_demuxer_deps="libnut"
1444 libnut_muxer_deps="libnut"
1445 matroska_audio_muxer_select="matroska_muxer"
1446 matroska_demuxer_suggest="zlib bzlib"
1447 mov_demuxer_suggest="zlib"
1448 mp3_demuxer_select="mpegaudio_parser"
1449 mp4_muxer_select="mov_muxer"
1450 mpegtsraw_demuxer_select="mpegts_demuxer"
1451 mxf_d10_muxer_select="mxf_muxer"
1452 ogg_demuxer_select="golomb"
1453 psp_muxer_select="mov_muxer"
1454 rtp_demuxer_select="sdp_demuxer"
1455 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1456 rtsp_demuxer_select="http_protocol rtpdec"
1457 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1458 sap_demuxer_select="sdp_demuxer"
1459 sap_muxer_select="rtp_muxer rtp_protocol"
1460 sdp_demuxer_select="rtpdec"
1461 spdif_muxer_select="aac_parser"
1462 tg2_muxer_select="mov_muxer"
1463 tgp_muxer_select="mov_muxer"
1464 w64_demuxer_deps="wav_demuxer"
1465
1466 # indevs / outdevs
1467 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1468 alsa_outdev_deps="alsa_asoundlib_h"
1469 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1470 dshow_indev_deps="IBaseFilter"
1471 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1472 dv1394_indev_deps="dv1394 dv_demuxer"
1473 fbdev_indev_deps="linux_fb_h"
1474 jack_indev_deps="jack_jack_h sem_timedwait"
1475 lavfi_indev_deps="avfilter"
1476 libdc1394_indev_deps="libdc1394"
1477 openal_indev_deps="openal"
1478 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1479 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1480 sdl_outdev_deps="sdl"
1481 sndio_indev_deps="sndio_h"
1482 sndio_outdev_deps="sndio_h"
1483 v4l_indev_deps="linux_videodev_h"
1484 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1485 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1486 vfwcap_indev_extralibs="-lavicap32"
1487 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1488 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1489
1490 # protocols
1491 gopher_protocol_deps="network"
1492 http_protocol_deps="network"
1493 http_protocol_select="tcp_protocol"
1494 mmsh_protocol_select="http_protocol"
1495 mmst_protocol_deps="network"
1496 rtmp_protocol_select="tcp_protocol"
1497 rtp_protocol_select="udp_protocol"
1498 tcp_protocol_deps="network"
1499 udp_protocol_deps="network"
1500
1501 # filters
1502 blackframe_filter_deps="gpl"
1503 boxblur_filter_deps="gpl"
1504 cropdetect_filter_deps="gpl"
1505 drawtext_filter_deps="libfreetype"
1506 frei0r_filter_deps="frei0r dlopen strtok_r"
1507 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1508 hqdn3d_filter_deps="gpl"
1509 movie_filter_deps="avcodec avformat"
1510 mp_filter_deps="gpl avcodec"
1511 mptestsrc_filter_deps="gpl"
1512 negate_filter_deps="lut_filter"
1513 ocv_filter_deps="libopencv"
1514 scale_filter_deps="swscale"
1515 yadif_filter_deps="gpl"
1516
1517 # libraries
1518 avdevice_deps="avcodec avformat"
1519 avformat_deps="avcodec"
1520 postproc_deps="gpl"
1521
1522 # programs
1523 ffmpeg_deps="avcodec avformat swscale"
1524 ffmpeg_select="buffer_filter buffersink_filter"
1525 ffplay_deps="avcodec avformat swscale sdl"
1526 ffplay_select="buffersink_filter rdft"
1527 ffprobe_deps="avcodec avformat"
1528 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1529 ffserver_extralibs='$ldl'
1530
1531 doc_deps="texi2html"
1532
1533 # tests
1534
1535 test_deps(){
1536     suf1=$1
1537     suf2=$2
1538     shift 2
1539     for v; do
1540         dep=${v%=*}
1541         tests=${v#*=}
1542         for name in ${tests}; do
1543             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1544         done
1545     done
1546 }
1547
1548 test_deps _encoder _decoder                                             \
1549     adpcm_g726=g726                                                     \
1550     adpcm_ima_qt                                                        \
1551     adpcm_ima_wav                                                       \
1552     adpcm_ms                                                            \
1553     adpcm_swf                                                           \
1554     adpcm_yamaha=adpcm_yam                                              \
1555     alac                                                                \
1556     asv1                                                                \
1557     asv2                                                                \
1558     bmp                                                                 \
1559     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1560     dvvideo="dv dv50"                                                   \
1561     ffv1                                                                \
1562     flac                                                                \
1563     flashsv                                                             \
1564     flv                                                                 \
1565     gif                                                                 \
1566     h261                                                                \
1567     h263="h263 h263p"                                                   \
1568     huffyuv                                                             \
1569     jpegls                                                              \
1570     mjpeg="jpg mjpeg ljpeg"                                             \
1571     mp2                                                                 \
1572     mpeg1video="mpeg mpeg1b"                                            \
1573     mpeg2video="mpeg2 mpeg2thread"                                      \
1574     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1575     msmpeg4v3=msmpeg4                                                   \
1576     msmpeg4v2                                                           \
1577     pbm=pbmpipe                                                         \
1578     pcx                                                                 \
1579     pgm="pgm pgmpipe"                                                   \
1580     png                                                                 \
1581     ppm="ppm ppmpipe"                                                   \
1582     rawvideo="rgb yuv"                                                  \
1583     roq                                                                 \
1584     rv10                                                                \
1585     rv20                                                                \
1586     sgi                                                                 \
1587     snow="snow snowll"                                                  \
1588     svq1                                                                \
1589     targa=tga                                                           \
1590     tiff                                                                \
1591     wmav1                                                               \
1592     wmav2                                                               \
1593     wmv1                                                                \
1594     wmv2                                                                \
1595
1596 test_deps _muxer _demuxer                                               \
1597     aiff                                                                \
1598     pcm_alaw=alaw                                                       \
1599     asf                                                                 \
1600     au                                                                  \
1601     avi                                                                 \
1602     dv=dv_fmt                                                           \
1603     ffm                                                                 \
1604     flv=flv_fmt                                                         \
1605     gxf                                                                 \
1606     matroska=mkv                                                        \
1607     mmf                                                                 \
1608     mov                                                                 \
1609     pcm_mulaw=mulaw                                                     \
1610     mxf="mxf mxf_d10"                                                   \
1611     nut                                                                 \
1612     ogg                                                                 \
1613     rawvideo=pixfmt                                                     \
1614     rm                                                                  \
1615     swf                                                                 \
1616     mpegts=ts                                                           \
1617     voc                                                                 \
1618     wav                                                                 \
1619     yuv4mpegpipe=yuv4mpeg                                               \
1620
1621 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1622 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1623
1624 # default parameters
1625
1626 logfile="config.log"
1627
1628 # installation paths
1629 prefix_default="/usr/local"
1630 bindir_default='${prefix}/bin'
1631 datadir_default='${prefix}/share/ffmpeg'
1632 incdir_default='${prefix}/include'
1633 libdir_default='${prefix}/lib'
1634 mandir_default='${prefix}/share/man'
1635 shlibdir_default="$libdir_default"
1636
1637 # toolchain
1638 ar_default="ar"
1639 cc_default="gcc"
1640 cc_version=\"unknown\"
1641 host_cc_default="gcc"
1642 install="install"
1643 ln_s="ln -sf"
1644 nm_default="nm"
1645 objformat="elf"
1646 pkg_config_default=pkg-config
1647 ranlib="ranlib"
1648 strip_default="strip"
1649 yasmexe="yasm"
1650 nogas=":"
1651
1652 nm_opts='-g'
1653
1654 # machine
1655 arch_default=$(uname -m)
1656 cpu="generic"
1657
1658 # OS
1659 target_os_default=$(tolower $(uname -s))
1660 host_os=$target_os_default
1661
1662 # configurable options
1663 enable avcodec
1664 enable avdevice
1665 enable avfilter
1666 enable avformat
1667 enable avutil
1668 enable asm
1669 enable debug
1670 enable doc
1671 enable fastdiv
1672 enable ffmpeg
1673 enable ffplay
1674 enable ffprobe
1675 enable ffserver
1676 enable network
1677 enable optimizations
1678 enable postproc
1679 enable protocols
1680 enable static
1681 enable stripping
1682 enable swscale
1683 enable swscale_alpha
1684
1685 # build settings
1686 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1687 FFSERVERLDFLAGS=-Wl,-E
1688 LIBPREF="lib"
1689 LIBSUF=".a"
1690 FULLNAME='$(NAME)$(BUILDSUF)'
1691 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1692 SLIBPREF="lib"
1693 SLIBSUF=".so"
1694 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1695 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1696 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1697 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1698 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1699 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1700
1701 AS_O='-o $@'
1702 CC_O='-o $@'
1703
1704 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1705 host_libs='-lm'
1706
1707 target_path='$(CURDIR)'
1708
1709 # since the object filename is not given with the -MM flag, the compiler
1710 # is only able to print the basename, and we must add the path ourselves
1711 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1712 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1713
1714 # find source path
1715 if test -f configure; then
1716     source_path=.
1717 else
1718     source_path=$(cd $(dirname "$0"); pwd)
1719     echo "$source_path" | grep -q '[[:blank:]]' &&
1720         die "Out of tree builds are impossible with whitespace in source path."
1721     test -e "$source_path/config.h" &&
1722         die "Out of tree builds are impossible with config.h in source dir."
1723 fi
1724
1725 for v in "$@"; do
1726     r=${v#*=}
1727     l=${v%"$r"}
1728     r=$(sh_quote "$r")
1729     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1730 done
1731
1732 find_things(){
1733     thing=$1
1734     pattern=$2
1735     file=$source_path/$3
1736     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1737 }
1738
1739 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1740 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1741 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1742 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1743 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1744 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1745 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1746 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1747 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1748 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1749 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1750
1751 find_tests(){
1752     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1753 }
1754
1755 ACODEC_TESTS=$(find_tests acodec)
1756 VCODEC_TESTS=$(find_tests vsynth1)
1757 LAVF_TESTS=$(find_tests lavf)
1758 LAVFI_TESTS=$(find_tests lavfi)
1759 SEEK_TESTS=$(find_tests seek seek_)
1760
1761 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1762
1763 for n in $COMPONENT_LIST; do
1764     v=$(toupper ${n%s})_LIST
1765     eval enable \$$v
1766     eval ${n}_if_any="\$$v"
1767 done
1768
1769 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1770
1771 die_unknown(){
1772     echo "Unknown option \"$1\"."
1773     echo "See $0 --help for available options."
1774     exit 1
1775 }
1776
1777 show_list() {
1778     suffix=_$1
1779     shift
1780     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1781     exit 0
1782 }
1783
1784 for opt do
1785     optval="${opt#*=}"
1786     case "$opt" in
1787     --extra-ldflags=*) add_ldflags $optval
1788     ;;
1789     --extra-libs=*) add_extralibs $optval
1790     ;;
1791     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1792     ;;
1793     --enable-debug=*) debuglevel="$optval"
1794     ;;
1795     --disable-everything)
1796     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1797     ;;
1798     --enable-*=*|--disable-*=*)
1799     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1800     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1801     eval list=\$$(toupper $thing)_LIST
1802     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1803     $action $(filter "$name" $list)
1804     ;;
1805     --enable-?*|--disable-?*)
1806     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1807     if is_in $option $COMPONENT_LIST; then
1808         test $action = disable && action=unset
1809         eval $action \$$(toupper ${option%s})_LIST
1810     elif is_in $option $CMDLINE_SELECT; then
1811         $action $option
1812     else
1813         die_unknown $opt
1814     fi
1815     ;;
1816     --list-*)
1817         NAME="${opt#--list-}"
1818         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1819         NAME=${NAME%s}
1820         eval show_list $NAME \$$(toupper $NAME)_LIST
1821     ;;
1822     --help|-h) show_help
1823     ;;
1824     *)
1825     optname="${opt%%=*}"
1826     optname="${optname#--}"
1827     optname=$(echo "$optname" | sed 's/-/_/g')
1828     if is_in $optname $CMDLINE_SET; then
1829         eval $optname='$optval'
1830     elif is_in $optname $CMDLINE_APPEND; then
1831         append $optname "$optval"
1832     else
1833          die_unknown $opt
1834     fi
1835     ;;
1836     esac
1837 done
1838
1839 disabled logging && logfile=/dev/null
1840
1841 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1842 set >> $logfile
1843
1844 test -n "$cross_prefix" && enable cross_compile
1845
1846 if enabled cross_compile; then
1847     test -n "$arch" && test -n "$target_os" ||
1848         die "Must specify target arch and OS when cross-compiling"
1849 fi
1850
1851 set_default arch target_os
1852
1853 ar_default="${cross_prefix}${ar_default}"
1854 cc_default="${cross_prefix}${cc_default}"
1855 nm_default="${cross_prefix}${nm_default}"
1856 pkg_config_default="${cross_prefix}${pkg_config_default}"
1857 ranlib="${cross_prefix}${ranlib}"
1858 strip_default="${cross_prefix}${strip_default}"
1859
1860 sysinclude_default="${sysroot}/usr/include"
1861
1862 set_default cc nm pkg_config strip sysinclude
1863 enabled cross_compile || host_cc_default=$cc
1864 set_default host_cc
1865
1866 if ! $pkg_config --version >/dev/null 2>&1; then
1867     warn "$pkg_config not found, library detection may fail."
1868     pkg_config=false
1869 fi
1870
1871 exesuf() {
1872     case $1 in
1873         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1874     esac
1875 }
1876
1877 EXESUF=$(exesuf $target_os)
1878 HOSTEXESUF=$(exesuf $host_os)
1879
1880 # set temporary file name
1881 : ${TMPDIR:=$TEMPDIR}
1882 : ${TMPDIR:=$TMP}
1883 : ${TMPDIR:=/tmp}
1884
1885 if ! check_cmd mktemp -u XXXXXX; then
1886     # simple replacement for missing mktemp
1887     # NOT SAFE FOR GENERAL USE
1888     mktemp(){
1889         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1890     }
1891 fi
1892
1893 tmpfile(){
1894     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1895         (set -C; exec > $tmp) 2>/dev/null ||
1896         die "Unable to create temporary file in $TMPDIR."
1897     append TMPFILES $tmp
1898     eval $1=$tmp
1899 }
1900
1901 trap 'rm -f -- $TMPFILES' EXIT
1902
1903 tmpfile TMPC  .c
1904 tmpfile TMPE  $EXESUF
1905 tmpfile TMPH  .h
1906 tmpfile TMPO  .o
1907 tmpfile TMPS  .S
1908 tmpfile TMPV  .ver
1909 tmpfile TMPSH .sh
1910 tmpfile TMPASM .asm
1911
1912 unset -f mktemp
1913
1914 chmod +x $TMPE
1915
1916 # make sure we can execute files in $TMPDIR
1917 cat > $TMPSH 2>> $logfile <<EOF
1918 #! /bin/sh
1919 EOF
1920 chmod +x $TMPSH >> $logfile 2>&1
1921 if ! $TMPSH >> $logfile 2>&1; then
1922     cat <<EOF
1923 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1924 variable to another directory and make sure that it is not mounted noexec.
1925 EOF
1926     die "Sanity test failed."
1927 fi
1928
1929 filter_cflags=echo
1930 filter_cppflags=echo
1931 filter_asflags=echo
1932
1933 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1934     cc_type=llvm_gcc
1935     cc_version=__VERSION__
1936     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1937     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1938     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1939     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1940     speed_cflags='-O3'
1941     size_cflags='-Os'
1942 elif $cc -v 2>&1 | grep -qi ^gcc; then
1943     cc_type=gcc
1944     cc_version=__VERSION__
1945     gcc_version=$($cc --version | head -n1)
1946     gcc_basever=$($cc -dumpversion)
1947     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1948     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1949     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1950     if ! $cc -dumpversion | grep -q '^2\.'; then
1951         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1952         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1953     fi
1954     speed_cflags='-O3'
1955     size_cflags='-Os'
1956 elif $cc --version 2>/dev/null | grep -q Intel; then
1957     cc_type=icc
1958     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1959     cc_ident=$($cc --version | head -n1)
1960     icc_version=$($cc -dumpversion)
1961     CC_DEPFLAGS='-MMD'
1962     AS_DEPFLAGS='-MMD'
1963     speed_cflags='-O3'
1964     size_cflags='-Os'
1965     noopt_cflags='-O1'
1966 elif $cc -v 2>&1 | grep -q xlc; then
1967     cc_type=xlc
1968     cc_version="AV_STRINGIFY(__IBMC__)"
1969     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1970     speed_cflags='-O5'
1971     size_cflags='-O5 -qcompact'
1972 elif $cc -V 2>/dev/null | grep -q Compaq; then
1973     cc_type=ccc
1974     cc_version="AV_STRINGIFY(__DECC_VER)"
1975     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1976     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1977     debuglevel=3
1978     add_ldflags -Wl,-z,now # calls to libots crash without this
1979     speed_cflags='-fast'
1980     size_cflags='-O1'
1981 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1982     test -d "$sysroot" || die "No valid sysroot specified."
1983     cc_type=armcc
1984     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1985     cc_ident=$($cc --vsn | head -n1)
1986     armcc_conf="$PWD/armcc.conf"
1987     $cc --arm_linux_configure                 \
1988         --arm_linux_config_file="$armcc_conf" \
1989         --configure_sysroot="$sysroot"        \
1990         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1991         die "Error creating armcc configuration file."
1992     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1993     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1994     as_default="${cross_prefix}gcc"
1995     CC_DEPFLAGS='-MMD'
1996     AS_DEPFLAGS='-MMD'
1997     speed_cflags='-O3'
1998     size_cflags='-Os'
1999     filter_asflags="filter_out -W${armcc_opt}*"
2000 elif $cc -version 2>/dev/null | grep -q TMS470; then
2001     cc_type=tms470
2002     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2003     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2004     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2005     CC_O='-fr=$(@D)'
2006     as_default="${cross_prefix}gcc"
2007     ld_default="${cross_prefix}gcc"
2008     TMPO=$(basename $TMPC .c).o
2009     append TMPFILES $TMPO
2010     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2011     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2012     AS_DEPFLAGS='-MMD'
2013     speed_cflags='-O3 -mf=5'
2014     size_cflags='-O3 -mf=2'
2015     filter_cflags=tms470_flags
2016     tms470_flags(){
2017         for flag; do
2018             case $flag in
2019                 -march=*|-mcpu=*)
2020                     case "${flag#*=}" in
2021                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2022                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2023                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2024                         armv6*|arm11*)          echo -mv=6   ;;
2025                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2026                                                 echo -mv=5e  ;;
2027                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2028                     esac
2029                     ;;
2030                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2031                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2032                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2033                 -msoft-float)   echo --float_support=vfplib       ;;
2034                 -O[0-3]|-mf=*)  echo $flag                        ;;
2035                 -g)             echo -g -mn                       ;;
2036                 -pds=*)         echo $flag                        ;;
2037             esac
2038         done
2039     }
2040 elif $cc -v 2>&1 | grep -q clang; then
2041     cc_type=clang
2042     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2043         cc_version=__clang_version__ || cc_version=__VERSION__
2044     cc_ident=$($cc --version | head -n1)
2045     CC_DEPFLAGS='-MMD'
2046     AS_DEPFLAGS='-MMD'
2047     speed_cflags='-O3'
2048     size_cflags='-Os'
2049 elif $cc -V 2>&1 | grep -q Sun; then
2050     cc_type=suncc
2051     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2052     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2053     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2054     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2055     add_ldflags -xc99
2056     speed_cflags='-O5'
2057     size_cflags='-O5 -xspace'
2058     filter_cflags=suncc_flags
2059     suncc_flags(){
2060         for flag; do
2061             case $flag in
2062                 -march=*|-mcpu=*)
2063                     case "${flag#*=}" in
2064                         native)                   echo -xtarget=native       ;;
2065                         v9|niagara)               echo -xarch=sparc          ;;
2066                         ultrasparc)               echo -xarch=sparcvis       ;;
2067                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2068                         i586|pentium)             echo -xchip=pentium        ;;
2069                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2070                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2071                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2072                         pentium4*)          echo -xtarget=pentium4           ;;
2073                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2074                         *-sse3)             echo -xarch=sse3                 ;;
2075                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2076                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2077                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2078                         k8|opteron|athlon64|athlon-fx)
2079                                                   echo -xarch=sse2a          ;;
2080                         athlon*)                  echo -xarch=pentium_proa   ;;
2081                     esac
2082                     ;;
2083                 -std=c99)             echo -xc99              ;;
2084                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2085                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2086                 -W*,*)                echo $flag              ;;
2087                 -f*-*|-W*)                                    ;;
2088                 *)                    echo $flag              ;;
2089             esac
2090         done
2091     }
2092 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2093     cc_type=pathscale
2094     cc_version=__PATHSCALE__
2095     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2096     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2097     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2098     speed_cflags='-O2'
2099     size_cflags='-Os'
2100     filter_cflags='filter_out -Wdisabled-optimization'
2101 elif $cc -v 2>&1 | grep -q Open64; then
2102     cc_type=open64
2103     cc_version=__OPEN64__
2104     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2105     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2106     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2107     speed_cflags='-O2'
2108     size_cflags='-Os'
2109     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2110 fi
2111
2112 test -n "$cc_type" && enable $cc_type ||
2113     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2114
2115 : ${as_default:=$cc}
2116 : ${dep_cc_default:=$cc}
2117 : ${ld_default:=$cc}
2118 set_default ar as dep_cc ld
2119
2120 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2121 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2122
2123 add_cflags $extra_cflags
2124 add_asflags $extra_cflags
2125
2126 if test -n "$sysroot"; then
2127     case "$cc_type" in
2128         gcc|llvm_gcc|clang)
2129             add_cppflags --sysroot="$sysroot"
2130             add_ldflags --sysroot="$sysroot"
2131         ;;
2132         tms470)
2133             add_cppflags -I"$sysinclude"
2134             add_ldflags  --sysroot="$sysroot"
2135         ;;
2136     esac
2137 fi
2138
2139 if test "$cpu" = host; then
2140     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2141
2142     case "$cc_type" in
2143         gcc|llvm_gcc)
2144             check_native(){
2145                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2146                 sed -n "/cc1.*$1=/{
2147                             s/.*$1=\\([^ ]*\\).*/\\1/
2148                             p
2149                             q
2150                         }" $TMPE
2151             }
2152             cpu=$(check_native -march || check_native -mcpu)
2153         ;;
2154     esac
2155
2156     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2157 fi
2158
2159 # Deal with common $arch aliases
2160 case "$arch" in
2161     arm*)
2162         arch="arm"
2163     ;;
2164     mips|mipsel|IP*)
2165         arch="mips"
2166     ;;
2167     mips64*)
2168         arch="mips"
2169         subarch="mips64"
2170     ;;
2171     parisc|hppa)
2172         arch="parisc"
2173     ;;
2174     parisc64|hppa64)
2175         arch="parisc"
2176         subarch="parisc64"
2177     ;;
2178     "Power Macintosh"|ppc|powerpc)
2179         arch="ppc"
2180     ;;
2181     ppc64|powerpc64)
2182         arch="ppc"
2183         subarch="ppc64"
2184     ;;
2185     s390|s390x)
2186         arch="s390"
2187     ;;
2188     sh4|sh)
2189         arch="sh4"
2190     ;;
2191     sun4u|sparc64)
2192         arch="sparc"
2193         subarch="sparc64"
2194     ;;
2195     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2196         arch="x86"
2197     ;;
2198 esac
2199
2200 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2201 enable $arch
2202
2203 # Add processor-specific flags
2204 if test "$cpu" = generic; then
2205     : do nothing
2206 elif enabled ppc; then
2207
2208     case $(tolower $cpu) in
2209         601|ppc601|powerpc601)
2210             cpuflags="-mcpu=601"
2211             disable altivec
2212         ;;
2213         603*|ppc603*|powerpc603*)
2214             cpuflags="-mcpu=603"
2215             disable altivec
2216         ;;
2217         604*|ppc604*|powerpc604*)
2218             cpuflags="-mcpu=604"
2219             disable altivec
2220         ;;
2221         g3|75*|ppc75*|powerpc75*)
2222             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2223             disable altivec
2224         ;;
2225         g4|745*|ppc745*|powerpc745*)
2226             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2227         ;;
2228         74*|ppc74*|powerpc74*)
2229             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2230         ;;
2231         g5|970|ppc970|powerpc970|power4*)
2232             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2233         ;;
2234         cell)
2235             cpuflags="-mcpu=cell"
2236             enable ldbrx
2237         ;;
2238         e500v2)
2239             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2240             disable altivec
2241         ;;
2242         e500)
2243             cpuflags="-mcpu=8540 -mhard-float"
2244             disable altivec
2245         ;;
2246     esac
2247
2248 elif enabled x86; then
2249
2250     case $cpu in
2251         i[345]86|pentium)
2252             cpuflags="-march=$cpu"
2253             disable mmx
2254         ;;
2255         # targets that do NOT support conditional mov (cmov)
2256         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2257             cpuflags="-march=$cpu"
2258             disable cmov
2259         ;;
2260         # targets that do support conditional mov (cmov)
2261         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2262             cpuflags="-march=$cpu"
2263             enable cmov
2264             enable fast_cmov
2265         ;;
2266         # targets that do support conditional mov but on which it's slow
2267         pentium4|pentium4m|prescott|nocona)
2268             cpuflags="-march=$cpu"
2269             enable cmov
2270             disable fast_cmov
2271         ;;
2272     esac
2273
2274 elif enabled sparc; then
2275
2276     case $cpu in
2277         niagara)
2278             cpuflags="-mcpu=$cpu"
2279             disable vis
2280         ;;
2281         sparc64)
2282             cpuflags="-mcpu=v9"
2283         ;;
2284     esac
2285
2286 elif enabled arm; then
2287
2288     case $cpu in
2289         armv*)
2290             cpuflags="-march=$cpu"
2291             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2292         ;;
2293         *)
2294             cpuflags="-mcpu=$cpu"
2295             case $cpu in
2296                 cortex-a*)                               subarch=armv7a  ;;
2297                 cortex-r*)                               subarch=armv7r  ;;
2298                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2299                 arm11*)                                  subarch=armv6   ;;
2300                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2301                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2302             esac
2303         ;;
2304     esac
2305
2306 elif enabled alpha; then
2307
2308     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2309
2310 elif enabled bfin; then
2311
2312     cpuflags="-mcpu=$cpu"
2313
2314 elif enabled mips; then
2315
2316     cpuflags="-march=$cpu"
2317
2318 elif enabled avr32; then
2319
2320     case $cpu in
2321         ap7[02]0[0-2])
2322             subarch="avr32_ap"
2323             cpuflags="-mpart=$cpu"
2324         ;;
2325         ap)
2326             subarch="avr32_ap"
2327             cpuflags="-march=$cpu"
2328         ;;
2329         uc3[ab]*)
2330             subarch="avr32_uc"
2331             cpuflags="-mcpu=$cpu"
2332         ;;
2333         uc)
2334             subarch="avr32_uc"
2335             cpuflags="-march=$cpu"
2336         ;;
2337     esac
2338
2339 fi
2340
2341 add_cflags $cpuflags
2342 add_asflags $cpuflags
2343
2344 # compiler sanity check
2345 check_exec <<EOF
2346 int main(void){ return 0; }
2347 EOF
2348 if test "$?" != 0; then
2349     echo "$cc is unable to create an executable file."
2350     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2351         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2352         echo "Only do this if you know what cross compiling means."
2353     fi
2354     die "C compiler test failed."
2355 fi
2356
2357 add_cppflags -D_ISOC99_SOURCE
2358 check_cflags -std=c99
2359 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2360 #include <stdlib.h>
2361 EOF
2362 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2363 #include <stdlib.h>
2364 EOF
2365
2366 check_host_cflags -std=c99
2367 check_host_cflags -Wall
2368
2369 case "$arch" in
2370     alpha|ia64|mips|parisc|sparc)
2371         spic=$shared
2372     ;;
2373     x86)
2374         subarch="x86_32"
2375         check_cc <<EOF && subarch="x86_64"
2376         int test[(int)sizeof(char*) - 7];
2377 EOF
2378         if test "$subarch" = "x86_64"; then
2379             spic=$shared
2380         fi
2381     ;;
2382 esac
2383
2384 enable $subarch
2385 enabled spic && enable pic
2386
2387 # OS specific
2388 case $target_os in
2389     haiku)
2390         prefix_default="/boot/common"
2391         network_extralibs="-lnetwork"
2392         host_libs=
2393         ;;
2394     sunos)
2395         FFSERVERLDFLAGS=""
2396         SHFLAGS='-shared -Wl,-h,$$(@F)'
2397         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2398         network_extralibs="-lsocket -lnsl"
2399         add_cppflags -D__EXTENSIONS__
2400         nm_opts='-P -g'
2401         ;;
2402     netbsd)
2403         disable symver
2404         oss_indev_extralibs="-lossaudio"
2405         oss_outdev_extralibs="-lossaudio"
2406         ;;
2407     openbsd)
2408         enable malloc_aligned
2409         # On OpenBSD 4.5. the compiler does not use PIC unless
2410         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2411         # however the generated executable will not do anything
2412         # (simply quits with exit-code 1, no crash, no output).
2413         # Thus explicitly enable PIC here.
2414         enable pic
2415         disable symver
2416         SHFLAGS='-shared'
2417         oss_indev_extralibs="-lossaudio"
2418         oss_outdev_extralibs="-lossaudio"
2419         ;;
2420     dragonfly)
2421         enable malloc_aligned
2422         disable symver
2423         ;;
2424     freebsd)
2425         enable malloc_aligned
2426         ;;
2427     bsd/os)
2428         add_extralibs -lpoll -lgnugetopt
2429         strip="strip -d"
2430         ;;
2431     darwin)
2432         enable malloc_aligned
2433         gas="gas-preprocessor.pl $cc"
2434         enabled ppc && add_asflags -force_cpusubtype_ALL
2435         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2436         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2437         strip="${strip} -x"
2438         add_ldflags -Wl,-dynamic,-search_paths_first
2439         SLIBSUF=".dylib"
2440         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2441         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2442         FFSERVERLDFLAGS=-Wl,-bind_at_load
2443         objformat="macho"
2444         enabled x86_64 && objformat="macho64"
2445         enabled_any pic shared ||
2446             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2447         ;;
2448     mingw32*)
2449         if test $target_os = "mingw32ce"; then
2450             disable network
2451         else
2452             target_os=mingw32
2453         fi
2454         LIBTARGET=i386
2455         if enabled x86_64; then
2456             enable malloc_aligned
2457             LIBTARGET=x64
2458         elif enabled arm; then
2459             LIBTARGET=arm-wince
2460         fi
2461         shlibdir_default="$bindir_default"
2462         SLIBPREF=""
2463         SLIBSUF=".dll"
2464         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2465         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2466         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2467         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2468         SLIB_INSTALL_LINKS=
2469         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2470         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2471         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'
2472         objformat="win32"
2473         enable dos_paths
2474         check_cflags -fno-common
2475         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2476                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2477                 die "ERROR: MinGW runtime version must be >= 3.15."
2478         add_cppflags -U__STRICT_ANSI__
2479         ;;
2480     cygwin*)
2481         target_os=cygwin
2482         shlibdir_default="$bindir_default"
2483         SLIBPREF="cyg"
2484         SLIBSUF=".dll"
2485         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2486         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2487         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2488         objformat="win32"
2489         enable dos_paths
2490         check_cflags -fno-common
2491         add_cppflags -U__STRICT_ANSI__
2492         ;;
2493     *-dos|freedos|opendos)
2494         network_extralibs="-lsocket"
2495         objformat="coff"
2496         enable dos_paths
2497         add_cppflags -U__STRICT_ANSI__
2498         ;;
2499     linux)
2500         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2501         enable dv1394
2502         ;;
2503     irix*)
2504         target_os=irix
2505         ranlib="echo ignoring ranlib"
2506         ;;
2507     os/2*)
2508         strip="lxlite -CS"
2509         ln_s="cp -f"
2510         objformat="aout"
2511         add_cppflags -D_GNU_SOURCE
2512         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2513         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2514         FFSERVERLDFLAGS=""
2515         LIBSUF="_s.a"
2516         SLIBPREF=""
2517         SLIBSUF=".dll"
2518         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2519         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2520         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2521           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2522           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2523           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2524           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2525           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2526         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2527           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2528         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2529         enable dos_paths
2530         ;;
2531     gnu/kfreebsd)
2532         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2533         ;;
2534     gnu)
2535         ;;
2536     qnx)
2537         add_cppflags -D_QNX_SOURCE
2538         network_extralibs="-lsocket"
2539         ;;
2540     symbian)
2541         SLIBSUF=".dll"
2542         enable dos_paths
2543         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2544         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2545         add_ldflags -Wl,--target1-abs,--no-undefined \
2546                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2547                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2548         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2549                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2550                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2551         ;;
2552     none)
2553         ;;
2554     *)
2555         die "Unknown OS '$target_os'."
2556         ;;
2557 esac
2558
2559 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2560
2561 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2562
2563 set_default $PATHS_LIST
2564
2565 # we need to build at least one lib type
2566 if ! enabled_any static shared; then
2567     cat <<EOF
2568 At least one library type must be built.
2569 Specify --enable-static to build the static libraries or --enable-shared to
2570 build the shared libraries as well. To only build the shared libraries specify
2571 --disable-static in addition to --enable-shared.
2572 EOF
2573     exit 1;
2574 fi
2575
2576 die_license_disabled() {
2577     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2578 }
2579
2580 die_license_disabled gpl libx264
2581 die_license_disabled gpl libxavs
2582 die_license_disabled gpl libxvid
2583 die_license_disabled gpl x11grab
2584
2585 die_license_disabled nonfree libfaac
2586
2587 die_license_disabled version3 libopencore_amrnb
2588 die_license_disabled version3 libopencore_amrwb
2589 die_license_disabled version3 libvo_aacenc
2590 die_license_disabled version3 libvo_amrwbenc
2591
2592 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2593
2594 disabled optimizations || check_cflags -fomit-frame-pointer
2595
2596 enable_pic() {
2597     enable pic
2598     add_cppflags -DPIC
2599     add_cflags   -fPIC
2600     add_asflags  -fPIC
2601 }
2602
2603 enabled pic && enable_pic
2604
2605 check_cc <<EOF || die "Symbol mangling check failed."
2606 int ff_extern;
2607 EOF
2608 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2609 extern_prefix=${sym%%ff_extern*}
2610
2611 check_cc <<EOF && enable inline_asm
2612 void foo(void) { __asm__ volatile ("" ::); }
2613 EOF
2614
2615 _restrict=
2616 for restrict_keyword in restrict __restrict__ __restrict; do
2617     check_cc <<EOF && _restrict=$restrict_keyword && break
2618 void foo(char * $restrict_keyword p);
2619 EOF
2620 done
2621
2622 check_cc <<EOF && enable attribute_packed
2623 struct { int x; } __attribute__((packed)) x;
2624 EOF
2625
2626 check_cc <<EOF && enable attribute_may_alias
2627 union { int x; } __attribute__((may_alias)) x;
2628 EOF
2629
2630 check_cc <<EOF || die "endian test failed"
2631 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2632 EOF
2633 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2634
2635 if enabled alpha; then
2636
2637     check_cflags -mieee
2638
2639 elif enabled arm; then
2640
2641     enabled thumb && check_cflags -mthumb || check_cflags -marm
2642     nogas=die
2643
2644     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2645         enable vfp_args
2646     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2647         case "${cross_prefix:-$cc}" in
2648             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2649             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2650 __asm__ (".eabi_attribute 28, 1");
2651 int main(void) { return 0; }
2652 EOF
2653         esac
2654         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2655     fi
2656
2657     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2658     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2659     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2660     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2661     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2662     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2663     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2664
2665     enabled_all armv6t2 shared !pic && enable_pic
2666
2667 elif enabled mips; then
2668
2669     check_asm loongson '"dmult.g $1, $2, $3"'
2670     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2671
2672 elif enabled ppc; then
2673
2674     enable local_aligned_8 local_aligned_16
2675
2676     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2677     check_asm ibm_asm   '"add 0, 0, 0"'
2678     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2679     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2680
2681     # AltiVec flags: The FSF version of GCC differs from the Apple version
2682     if enabled altivec; then
2683         nogas=warn
2684         check_cflags -maltivec -mabi=altivec &&
2685         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2686         check_cflags -faltivec
2687
2688         # check if our compiler supports Motorola AltiVec C API
2689         check_cc <<EOF || disable altivec
2690 $inc_altivec_h
2691 int main(void) {
2692     vector signed int v1, v2, v3;
2693     v1 = vec_add(v2,v3);
2694     return 0;
2695 }
2696 EOF
2697
2698         # check if our compiler supports braces for vector declarations
2699         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2700 $inc_altivec_h
2701 int main (void) { (vector int) {1}; return 0; }
2702 EOF
2703     fi
2704
2705 elif enabled sparc; then
2706
2707     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2708         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2709
2710 elif enabled x86; then
2711
2712     enable local_aligned_8 local_aligned_16
2713
2714     # check whether EBP is available on x86
2715     # As 'i' is stored on the stack, this program will crash
2716     # if the base pointer is used to access it because the
2717     # base pointer is cleared in the inline assembly code.
2718     check_exec_crash <<EOF && enable ebp_available
2719     volatile int i=0;
2720     __asm__ volatile (
2721         "xorl %%ebp, %%ebp"
2722     ::: "%ebp");
2723     return i;
2724 EOF
2725
2726     # check whether EBX is available on x86
2727     check_asm ebx_available '""::"b"(0)' &&
2728         check_asm ebx_available '"":::"%ebx"'
2729
2730     # check whether xmm clobbers are supported
2731     check_asm xmm_clobbers '"":::"%xmm0"'
2732
2733     # check whether binutils is new enough to compile SSSE3/MMX2
2734     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2735     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2736
2737     check_asm bswap '"bswap %%eax" ::: "%eax"'
2738
2739     if ! disabled_any asm mmx yasm; then
2740         if check_cmd $yasmexe --version; then
2741             enabled x86_64 && yasm_extra="-m amd64"
2742             yasm_debug="-g dwarf2"
2743         elif check_cmd nasm -v; then
2744             yasmexe=nasm
2745             yasm_debug="-g -F dwarf"
2746             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2747         fi
2748
2749         YASMFLAGS="-f $objformat $yasm_extra"
2750         enabled pic               && append YASMFLAGS "-DPIC"
2751         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2752         case "$objformat" in
2753             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2754         esac
2755
2756         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2757             die "yasm not found, use --disable-yasm for a crippled build"
2758         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2759     fi
2760
2761     case "$cpu" in
2762         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2763             disable fast_clz
2764         ;;
2765     esac
2766
2767 fi
2768
2769 if enabled asm; then
2770     as=${gas:=$as}
2771     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2772         $nogas "GNU assembler not found, install gas-preprocessor"
2773 fi
2774
2775 check_ldflags -Wl,--as-needed
2776
2777 if check_func dlopen; then
2778     ldl=
2779 elif check_func dlopen -ldl; then
2780     ldl=-ldl
2781 fi
2782
2783 if enabled network; then
2784     check_type "sys/types.h sys/socket.h" socklen_t
2785     check_type netdb.h "struct addrinfo"
2786     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2787     check_type netinet/in.h "struct sockaddr_in6"
2788     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2789     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2790     # Prefer arpa/inet.h over winsock2
2791     if check_header arpa/inet.h ; then
2792         check_func closesocket
2793     elif check_header winsock2.h ; then
2794         check_func_headers winsock2.h closesocket -lws2 && \
2795             network_extralibs="-lws2" || \
2796         { check_func_headers winsock2.h closesocket -lws2_32 && \
2797             network_extralibs="-lws2_32"; }
2798         check_type ws2tcpip.h socklen_t
2799         check_type ws2tcpip.h "struct addrinfo"
2800         check_type ws2tcpip.h "struct ipv6_mreq"
2801         check_type ws2tcpip.h "struct sockaddr_in6"
2802         check_type ws2tcpip.h "struct sockaddr_storage"
2803         check_struct winsock2.h "struct sockaddr" sa_len
2804     else
2805         disable network
2806     fi
2807 fi
2808
2809 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2810 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2811
2812 check_func  fcntl
2813 check_func  fork
2814 check_func  getaddrinfo $network_extralibs
2815 check_func  gethrtime
2816 check_func  getrusage
2817 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2818 check_func  inet_aton $network_extralibs
2819 check_func  isatty
2820 check_func  localtime_r
2821 check_func  ${malloc_prefix}memalign            && enable memalign
2822 check_func  mkstemp
2823 check_func  mmap
2824 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2825 check_func  setrlimit
2826 check_func  strerror_r
2827 check_func  strptime
2828 check_func  strtok_r
2829 check_func_headers conio.h kbhit
2830 check_func_headers io.h setmode
2831 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2832 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2833 check_func_headers windows.h GetProcessTimes
2834 check_func_headers windows.h MapViewOfFile
2835 check_func_headers windows.h VirtualAlloc
2836
2837 check_header dlfcn.h
2838 check_header dxva2api.h
2839 check_header libcrystalhd/libcrystalhd_if.h
2840 check_header malloc.h
2841 check_header poll.h
2842 check_header sys/mman.h
2843 check_header sys/resource.h
2844 check_header sys/select.h
2845 check_header termios.h
2846 check_header vdpau/vdpau.h
2847 check_header vdpau/vdpau_x11.h
2848 check_header X11/extensions/XvMClib.h
2849
2850 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2851
2852 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2853 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2854
2855 # check for some common methods of building with pthread support
2856 # do this before the optional library checks as some of them require pthreads
2857 if ! disabled pthreads && ! enabled w32threads; then
2858     enable pthreads
2859     if check_func pthread_create; then
2860         :
2861     elif check_func pthread_create -pthread; then
2862         add_cflags -pthread
2863         add_extralibs -pthread
2864     elif check_func pthread_create -pthreads; then
2865         add_cflags -pthreads
2866         add_extralibs -pthreads
2867     elif check_func pthread_create -lpthreadGC2; then
2868         add_extralibs -lpthreadGC2
2869     elif ! check_lib pthread.h pthread_create -lpthread; then
2870         disable pthreads
2871     fi
2872 fi
2873
2874 for thread in $THREADS_LIST; do
2875     if enabled $thread; then
2876         test -n "$thread_type" &&
2877             die "ERROR: Only one thread type must be selected." ||
2878             thread_type="$thread"
2879     fi
2880 done
2881
2882 check_lib math.h sin -lm && LIBM="-lm"
2883 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2884 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2885
2886 check_mathfunc exp2
2887 check_mathfunc exp2f
2888 check_mathfunc llrint
2889 check_mathfunc llrintf
2890 check_mathfunc log2
2891 check_mathfunc log2f
2892 check_mathfunc lrint
2893 check_mathfunc lrintf
2894 check_mathfunc round
2895 check_mathfunc roundf
2896 check_mathfunc trunc
2897 check_mathfunc truncf
2898
2899 # these are off by default, so fail if requested and not available
2900 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2901 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2902 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2903 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2904 enabled libdirac   && require_pkg_config dirac                          \
2905     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2906     "dirac_decoder_init dirac_encoder_init"
2907 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2908 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2909 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2910 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2911 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2912 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2913 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2914 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2915 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2916 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2917 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2918 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2919 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2920 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2921 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2922 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2923 enabled libvpx     && {
2924     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2925                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2926     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2927                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2928 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2929                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2930                         die "ERROR: libx264 version must be >= 0.115."; }
2931 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2932 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2933 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2934                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2935                         die "ERROR: openal not found"; } &&
2936                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2937                         die "ERROR: openal version must be 1.1 or compatible"; }
2938 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2939
2940 SDL_CONFIG="${cross_prefix}sdl-config"
2941 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2942     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2943     enable sdl &&
2944     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2945 else
2946   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2947     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2948     sdl_libs=$("${SDL_CONFIG}" --libs)
2949     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2950     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2951     enable sdl &&
2952     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2953   fi
2954 fi
2955 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2956
2957 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2958
2959 check_header linux/fb.h
2960 check_header linux/videodev.h
2961 check_header linux/videodev2.h
2962 check_header sys/videoio.h
2963
2964 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2965 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2966 # w32api 3.12 had it defined wrong
2967 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2968
2969 check_type "dshow.h" IBaseFilter
2970
2971 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2972 { check_header dev/bktr/ioctl_meteor.h &&
2973   check_header dev/bktr/ioctl_bt848.h; } ||
2974 { check_header machine/ioctl_meteor.h &&
2975   check_header machine/ioctl_bt848.h; } ||
2976 { check_header dev/video/meteor/ioctl_meteor.h &&
2977   check_header dev/video/bktr/ioctl_bt848.h; } ||
2978 check_header dev/ic/bt8xx.h
2979
2980 check_header sndio.h
2981 if check_struct sys/soundcard.h audio_buf_info bytes; then
2982     enable_safe sys/soundcard.h
2983 else
2984     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2985     #include <sys/soundcard.h>
2986     audio_buf_info abc;
2987 EOF
2988 fi
2989 check_header soundcard.h
2990
2991 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2992
2993 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
2994
2995 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2996
2997 enabled x11grab                         &&
2998 check_header X11/Xlib.h                 &&
2999 check_header X11/extensions/XShm.h      &&
3000 check_header X11/extensions/Xfixes.h    &&
3001 check_func XOpenDisplay -lX11           &&
3002 check_func XShmCreateImage -lX11 -lXext &&
3003 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3004
3005 if ! disabled vaapi; then
3006     check_lib va/va.h vaInitialize -lva && {
3007         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3008         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3009     } || disable vaapi
3010 fi
3011
3012 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3013 check_cpp_condition \
3014     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3015     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3016       disable vdpau; }
3017 fi
3018
3019 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3020
3021 # add some useful compiler flags if supported
3022 check_cflags -Wdeclaration-after-statement
3023 check_cflags -Wall
3024 check_cflags -Wno-parentheses
3025 check_cflags -Wno-switch
3026 check_cflags -Wno-format-zero-length
3027 check_cflags -Wdisabled-optimization
3028 check_cflags -Wpointer-arith
3029 check_cflags -Wredundant-decls
3030 check_cflags -Wno-pointer-sign
3031 check_cflags -Wcast-qual
3032 check_cflags -Wwrite-strings
3033 check_cflags -Wtype-limits
3034 check_cflags -Wundef
3035 check_cflags -Wmissing-prototypes
3036 check_cflags -Wno-pointer-to-int-cast
3037 enabled extra_warnings && check_cflags -Winline
3038
3039 # add some linker flags
3040 check_ldflags -Wl,--warn-common
3041 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3042 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3043
3044 echo "X{};" > $TMPV
3045 if test_ldflags -Wl,--version-script,$TMPV; then
3046     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3047     check_cc <<EOF && enable symver_asm_label
3048 void ff_foo(void) __asm__ ("av_foo@VERSION");
3049 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3050 EOF
3051     check_cc <<EOF && enable symver_gnu_asm
3052 __asm__(".symver ff_foo,av_foo@VERSION");
3053 void ff_foo(void) {}
3054 EOF
3055 fi
3056
3057 if [ -n "$optflags" ]; then
3058     add_cflags $optflags
3059 elif enabled small; then
3060     add_cflags $size_cflags
3061 elif enabled optimizations; then
3062     add_cflags $speed_cflags
3063 else
3064     add_cflags $noopt_cflags
3065 fi
3066 check_cflags -fno-math-errno
3067 check_cflags -fno-signed-zeros
3068
3069 if enabled icc; then
3070     # Just warnings, no remarks
3071     check_cflags -w1
3072     # -wd: Disable following warnings
3073     # 144, 167, 556: -Wno-pointer-sign
3074     # 1292: attribute "foo" ignored
3075     # 10006: ignoring unknown option -fno-signed-zeros
3076     # 10148: ignoring unknown option -Wno-parentheses
3077     # 10156: ignoring option '-W'; no argument required
3078     check_cflags -wd144,167,556,1292,10006,10148,10156
3079     # 11030: Warning unknown option --as-needed
3080     # 10156: ignoring option '-export'; no argument required
3081     check_ldflags -wd10156,11030
3082     # Allow to compile with optimizations
3083     check_ldflags -march=$cpu
3084     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3085     enable ebp_available
3086     if enabled x86_32; then
3087         test ${icc_version%%.*} -ge 11 && \
3088             check_cflags -falign-stack=maintain-16-byte || \
3089             disable aligned_stack
3090     fi
3091 elif enabled ccc; then
3092     # disable some annoying warnings
3093     add_cflags -msg_disable cvtu32to64
3094     add_cflags -msg_disable embedcomment
3095     add_cflags -msg_disable needconstext
3096     add_cflags -msg_disable nomainieee
3097     add_cflags -msg_disable ptrmismatch1
3098     add_cflags -msg_disable unreachcode
3099 elif enabled gcc; then
3100     check_cflags -fno-tree-vectorize
3101     check_cflags -Werror=implicit-function-declaration
3102     check_cflags -Werror=missing-prototypes
3103 elif enabled llvm_gcc; then
3104     check_cflags -mllvm -stack-alignment=16
3105 elif enabled clang; then
3106     check_cflags -mllvm -stack-alignment=16
3107     check_cflags -Qunused-arguments
3108 elif enabled armcc; then
3109     # 2523: use of inline assembler is deprecated
3110     add_cflags -W${armcc_opt},--diag_suppress=2523
3111     add_cflags -W${armcc_opt},--diag_suppress=1207
3112     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3113     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3114     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3115     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3116 elif enabled tms470; then
3117     add_cflags -pds=824 -pds=837
3118 elif enabled pathscale; then
3119     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3120 fi
3121
3122 enabled_any $THREADS_LIST      && enable threads
3123
3124 check_deps $CONFIG_LIST       \
3125            $CONFIG_EXTRA      \
3126            $HAVE_LIST         \
3127            $DECODER_LIST      \
3128            $ENCODER_LIST      \
3129            $HWACCEL_LIST      \
3130            $PARSER_LIST       \
3131            $BSF_LIST          \
3132            $DEMUXER_LIST      \
3133            $MUXER_LIST        \
3134            $FILTER_LIST       \
3135            $INDEV_LIST        \
3136            $OUTDEV_LIST       \
3137            $PROTOCOL_LIST     \
3138            $ACODEC_TESTS      \
3139            $VCODEC_TESTS      \
3140            $LAVF_TESTS        \
3141            $LAVFI_TESTS       \
3142            $SEEK_TESTS        \
3143
3144 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3145
3146 if test $target_os == "haiku"; then
3147     disable memalign
3148     disable posix_memalign
3149 fi
3150
3151 ! enabled_any memalign posix_memalign malloc_aligned &&
3152     enabled_any $need_memalign && enable memalign_hack
3153
3154 echo "install prefix            $prefix"
3155 echo "source path               $source_path"
3156 echo "C compiler                $cc"
3157 echo "ARCH                      $arch ($cpu)"
3158 if test "$build_suffix" != ""; then
3159     echo "build suffix              $build_suffix"
3160 fi
3161 if test "$extra_version" != ""; then
3162     echo "version string suffix     $extra_version"
3163 fi
3164 echo "big-endian                ${bigendian-no}"
3165 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3166 if enabled x86; then
3167     echo "${yasmexe}                      ${yasm-no}"
3168     echo "MMX enabled               ${mmx-no}"
3169     echo "MMX2 enabled              ${mmx2-no}"
3170     echo "3DNow! enabled            ${amd3dnow-no}"
3171     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3172     echo "SSE enabled               ${sse-no}"
3173     echo "SSSE3 enabled             ${ssse3-no}"
3174     echo "AVX enabled               ${avx-no}"
3175     echo "CMOV enabled              ${cmov-no}"
3176     echo "CMOV is fast              ${fast_cmov-no}"
3177     echo "EBX available             ${ebx_available-no}"
3178     echo "EBP available             ${ebp_available-no}"
3179 fi
3180 if enabled arm; then
3181     echo "ARMv5TE enabled           ${armv5te-no}"
3182     echo "ARMv6 enabled             ${armv6-no}"
3183     echo "ARMv6T2 enabled           ${armv6t2-no}"
3184     echo "ARM VFP enabled           ${armvfp-no}"
3185     echo "IWMMXT enabled            ${iwmmxt-no}"
3186     echo "NEON enabled              ${neon-no}"
3187 fi
3188 if enabled mips; then
3189     echo "MMI enabled               ${mmi-no}"
3190 fi
3191 if enabled ppc; then
3192     echo "AltiVec enabled           ${altivec-no}"
3193     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3194     echo "dcbzl available           ${dcbzl-no}"
3195 fi
3196 if enabled sparc; then
3197     echo "VIS enabled               ${vis-no}"
3198 fi
3199 echo "debug symbols             ${debug-no}"
3200 echo "strip symbols             ${stripping-no}"
3201 echo "optimize for size         ${small-no}"
3202 echo "optimizations             ${optimizations-no}"
3203 echo "static                    ${static-no}"
3204 echo "shared                    ${shared-no}"
3205 echo "postprocessing support    ${postproc-no}"
3206 echo "new filter support        ${avfilter-no}"
3207 echo "network support           ${network-no}"
3208 echo "threading support         ${thread_type-no}"
3209 echo "SDL support               ${sdl-no}"
3210 echo "Sun medialib support      ${mlib-no}"
3211 echo "libdxva2 enabled          ${dxva2-no}"
3212 echo "libva enabled             ${vaapi-no}"
3213 echo "libvdpau enabled          ${vdpau-no}"
3214 echo "AVISynth enabled          ${avisynth-no}"
3215 echo "libcelt enabled           ${libcelt-no}"
3216 echo "frei0r enabled            ${frei0r-no}"
3217 echo "libdc1394 support         ${libdc1394-no}"
3218 echo "libdirac enabled          ${libdirac-no}"
3219 echo "libfaac enabled           ${libfaac-no}"
3220 echo "libgsm enabled            ${libgsm-no}"
3221 echo "libmp3lame enabled        ${libmp3lame-no}"
3222 echo "libnut enabled            ${libnut-no}"
3223 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3224 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3225 echo "libopencv support         ${libopencv-no}"
3226 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3227 echo "librtmp enabled           ${librtmp-no}"
3228 echo "libschroedinger enabled   ${libschroedinger-no}"
3229 echo "libspeex enabled          ${libspeex-no}"
3230 echo "libtheora enabled         ${libtheora-no}"
3231 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3232 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3233 echo "libvorbis enabled         ${libvorbis-no}"
3234 echo "libvpx enabled            ${libvpx-no}"
3235 echo "libx264 enabled           ${libx264-no}"
3236 echo "libxavs enabled           ${libxavs-no}"
3237 echo "libxvid enabled           ${libxvid-no}"
3238 echo "openal enabled            ${openal-no}"
3239 echo "zlib enabled              ${zlib-no}"
3240 echo "bzlib enabled             ${bzlib-no}"
3241 echo
3242
3243 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3244     echo "Enabled ${type}s:"
3245     eval list=\$$(toupper $type)_LIST
3246     print_enabled '_*' $list | sort | pr -r -3 -t
3247     echo
3248 done
3249
3250 license="LGPL version 2.1 or later"
3251 if enabled nonfree; then
3252     license="nonfree and unredistributable"
3253 elif enabled gplv3; then
3254     license="GPL version 3 or later"
3255 elif enabled lgplv3; then
3256     license="LGPL version 3 or later"
3257 elif enabled gpl; then
3258     license="GPL version 2 or later"
3259 fi
3260
3261 echo "License: $license"
3262
3263 echo "Creating config.mak and config.h..."
3264
3265 test -e Makefile || $ln_s "$source_path/Makefile" .
3266
3267 enabled stripping || strip="echo skipping strip"
3268
3269 config_files="$TMPH config.mak"
3270
3271 cat > config.mak <<EOF
3272 # Automatically generated by configure - do not modify!
3273 ifndef FFMPEG_CONFIG_MAK
3274 FFMPEG_CONFIG_MAK=1
3275 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3276 prefix=$prefix
3277 LIBDIR=\$(DESTDIR)$libdir
3278 SHLIBDIR=\$(DESTDIR)$shlibdir
3279 INCDIR=\$(DESTDIR)$incdir
3280 BINDIR=\$(DESTDIR)$bindir
3281 DATADIR=\$(DESTDIR)$datadir
3282 MANDIR=\$(DESTDIR)$mandir
3283 SRC_PATH=$source_path
3284 ifndef MAIN_MAKEFILE
3285 SRC_PATH:=\$(SRC_PATH:.%=..%)
3286 endif
3287 CC_IDENT=$cc_ident
3288 ARCH=$arch
3289 CC=$cc
3290 AS=$as
3291 LD=$ld
3292 DEPCC=$dep_cc
3293 YASM=$yasmexe
3294 YASMDEP=$yasmexe
3295 AR=$ar
3296 RANLIB=$ranlib
3297 CP=cp -p
3298 LN_S=$ln_s
3299 STRIP=$strip
3300 CPPFLAGS=$CPPFLAGS
3301 CFLAGS=$CFLAGS
3302 ASFLAGS=$ASFLAGS
3303 AS_O=$CC_O
3304 CC_O=$CC_O
3305 LDFLAGS=$LDFLAGS
3306 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3307 SHFLAGS=$SHFLAGS
3308 YASMFLAGS=$YASMFLAGS
3309 BUILDSUF=$build_suffix
3310 FULLNAME=$FULLNAME
3311 LIBPREF=$LIBPREF
3312 LIBSUF=$LIBSUF
3313 LIBNAME=$LIBNAME
3314 SLIBPREF=$SLIBPREF
3315 SLIBSUF=$SLIBSUF
3316 EXESUF=$EXESUF
3317 EXTRA_VERSION=$extra_version
3318 DEPFLAGS=$DEPFLAGS
3319 CCDEP=$CCDEP
3320 ASDEP=$ASDEP
3321 CC_DEPFLAGS=$CC_DEPFLAGS
3322 AS_DEPFLAGS=$AS_DEPFLAGS
3323 HOSTCC=$host_cc
3324 HOSTCFLAGS=$host_cflags
3325 HOSTEXESUF=$HOSTEXESUF
3326 HOSTLDFLAGS=$host_ldflags
3327 HOSTLIBS=$host_libs
3328 TARGET_EXEC=$target_exec
3329 TARGET_PATH=$target_path
3330 SDL_LIBS=$sdl_libs
3331 SDL_CFLAGS=$sdl_cflags
3332 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3333 EXTRALIBS=$extralibs
3334 INSTALL=$install
3335 LIBTARGET=${LIBTARGET}
3336 SLIBNAME=${SLIBNAME}
3337 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3338 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3339 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3340 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3341 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3342 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3343 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3344 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3345 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3346 EOF
3347
3348 get_version(){
3349     name=$1
3350     file=$source_path/$2
3351     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3352     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3353     lcname=$(tolower $name)
3354     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3355     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3356 }
3357
3358 get_version LIBSWSCALE  libswscale/swscale.h
3359 get_version LIBPOSTPROC libpostproc/postprocess.h
3360 get_version LIBAVCODEC  libavcodec/version.h
3361 get_version LIBAVDEVICE libavdevice/avdevice.h
3362 get_version LIBAVFORMAT libavformat/version.h
3363 get_version LIBAVUTIL   libavutil/avutil.h
3364 get_version LIBAVFILTER libavfilter/avfilter.h
3365
3366 cat > $TMPH <<EOF
3367 /* Automatically generated by configure - do not modify! */
3368 #ifndef FFMPEG_CONFIG_H
3369 #define FFMPEG_CONFIG_H
3370 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3371 #define FFMPEG_LICENSE "$(c_escape $license)"
3372 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3373 #define CC_TYPE "$cc_type"
3374 #define CC_VERSION $cc_version
3375 #define restrict $_restrict
3376 #define EXTERN_PREFIX "${extern_prefix}"
3377 #define EXTERN_ASM ${extern_prefix}
3378 #define SLIBSUF "$SLIBSUF"
3379 EOF
3380
3381 test -n "$malloc_prefix" &&
3382     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3383
3384 if enabled small || disabled optimizations; then
3385     echo "#undef  av_always_inline"  >> $TMPH
3386     if enabled small; then
3387         echo "#define av_always_inline inline"  >> $TMPH
3388     else
3389         echo "#define av_always_inline av_unused"  >> $TMPH
3390     fi
3391 fi
3392
3393 if enabled yasm; then
3394     append config_files $TMPASM
3395     printf '' >$TMPASM
3396 fi
3397
3398 print_config ARCH_   "$config_files" $ARCH_LIST
3399 print_config HAVE_   "$config_files" $HAVE_LIST
3400 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3401                                      $CONFIG_EXTRA      \
3402                                      $DECODER_LIST      \
3403                                      $ENCODER_LIST      \
3404                                      $HWACCEL_LIST      \
3405                                      $PARSER_LIST       \
3406                                      $BSF_LIST          \
3407                                      $DEMUXER_LIST      \
3408                                      $MUXER_LIST        \
3409                                      $FILTER_LIST       \
3410                                      $PROTOCOL_LIST     \
3411                                      $INDEV_LIST        \
3412                                      $OUTDEV_LIST       \
3413
3414 cat >>config.mak <<EOF
3415 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3416 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3417 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3418 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3419 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3420 EOF
3421
3422 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3423 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3424
3425 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3426 cp_if_changed $TMPH config.h
3427 touch .config
3428
3429 enabled yasm && cp_if_changed $TMPASM config.asm
3430
3431 cat > $TMPH <<EOF
3432 /* Generated by ffconf */
3433 #ifndef AVUTIL_AVCONFIG_H
3434 #define AVUTIL_AVCONFIG_H
3435 EOF
3436
3437 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3438
3439 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3440
3441 cp_if_changed $TMPH libavutil/avconfig.h
3442
3443 test -n "$WARNINGS" && printf "\n$WARNINGS"
3444
3445 # build pkg-config files
3446
3447 pkgconfig_generate(){
3448 name=$1
3449 shortname=${name#lib}${build_suffix}
3450 comment=$2
3451 version=$3
3452 libs=$4
3453 requires=$5
3454 enabled ${name#lib} || return 0
3455 mkdir -p $name
3456 cat <<EOF > $name/$name.pc
3457 prefix=$prefix
3458 exec_prefix=\${prefix}
3459 libdir=$libdir
3460 includedir=$incdir
3461
3462 Name: $name
3463 Description: $comment
3464 Version: $version
3465 Requires: $(enabled shared || echo $requires)
3466 Requires.private: $(enabled shared && echo $requires)
3467 Conflicts:
3468 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3469 Libs.private: $(enabled shared && echo $libs)
3470 Cflags: -I\${includedir}
3471 EOF
3472 cat <<EOF > $name/$name-uninstalled.pc
3473 prefix=
3474 exec_prefix=
3475 libdir=\${pcfiledir}
3476 includedir=${source_path}
3477
3478 Name: $name
3479 Description: $comment
3480 Version: $version
3481 Requires: $requires
3482 Conflicts:
3483 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3484 Cflags: -I\${includedir}
3485 EOF
3486 }
3487
3488 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3489 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3490 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3491 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3492 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3493 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3494 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"