lavfi: port 2xsai filter from libmpcodecs
[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 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Component options:
103   --disable-doc            do not build documentation
104   --disable-ffmpeg         disable ffmpeg build
105   --disable-ffplay         disable ffplay build
106   --disable-ffprobe        disable ffprobe build
107   --disable-ffserver       disable ffserver build
108   --disable-avdevice       disable libavdevice build
109   --disable-avcodec        disable libavcodec build
110   --disable-avformat       disable libavformat build
111   --disable-swresample     disable libswresample build
112   --disable-swscale        disable libswscale build
113   --disable-postproc       disable libpostproc build
114   --disable-avfilter       disable video filter support [no]
115   --disable-pthreads       disable pthreads [auto]
116   --disable-w32threads     disable Win32 threads [auto]
117   --disable-os2threads     disable OS/2 threads [auto]
118   --enable-x11grab         enable X11 grabbing [no]
119   --disable-network        disable network support [no]
120   --disable-dct            disable DCT code
121   --disable-mdct           disable MDCT code
122   --disable-rdft           disable RDFT code
123   --disable-fft            disable FFT code
124   --enable-dxva2           enable DXVA2 code
125   --enable-vaapi           enable VAAPI code [autodetect]
126   --enable-vda             enable VDA code   [autodetect]
127   --enable-vdpau           enable VDPAU code [autodetect]
128
129 Individual component options:
130   --disable-everything     disable all components listed below
131   --disable-encoder=NAME   disable encoder NAME
132   --enable-encoder=NAME    enable encoder NAME
133   --disable-encoders       disable all encoders
134   --disable-decoder=NAME   disable decoder NAME
135   --enable-decoder=NAME    enable decoder NAME
136   --disable-decoders       disable all decoders
137   --disable-hwaccel=NAME   disable hwaccel NAME
138   --enable-hwaccel=NAME    enable hwaccel NAME
139   --disable-hwaccels       disable all hwaccels
140   --disable-muxer=NAME     disable muxer NAME
141   --enable-muxer=NAME      enable muxer NAME
142   --disable-muxers         disable all muxers
143   --disable-demuxer=NAME   disable demuxer NAME
144   --enable-demuxer=NAME    enable demuxer NAME
145   --disable-demuxers       disable all demuxers
146   --enable-parser=NAME     enable parser NAME
147   --disable-parser=NAME    disable parser NAME
148   --disable-parsers        disable all parsers
149   --enable-bsf=NAME        enable bitstream filter NAME
150   --disable-bsf=NAME       disable bitstream filter NAME
151   --disable-bsfs           disable all bitstream filters
152   --enable-protocol=NAME   enable protocol NAME
153   --disable-protocol=NAME  disable protocol NAME
154   --disable-protocols      disable all protocols
155   --enable-indev=NAME      enable input device NAME
156   --disable-indev=NAME     disable input device NAME
157   --disable-indevs         disable input devices
158   --enable-outdev=NAME     enable output device NAME
159   --disable-outdev=NAME    disable output device NAME
160   --disable-outdevs        disable output devices
161   --disable-devices        disable all devices
162   --enable-filter=NAME     enable filter NAME
163   --disable-filter=NAME    disable filter NAME
164   --disable-filters        disable all filters
165
166 External library support:
167   --enable-avisynth        enable reading of AVISynth script files [no]
168   --enable-bzlib           enable bzlib [autodetect]
169   --enable-fontconfig      enable fontconfig
170   --enable-frei0r          enable frei0r video filtering
171   --enable-gnutls          enable gnutls [no]
172   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
173   --enable-libass          enable libass subtitles rendering [no]
174   --enable-libbluray       enable BluRay reading using libbluray [no]
175   --enable-libcelt         enable CELT decoding via libcelt [no]
176   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
177   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
178   --enable-libopencv       enable video filtering via libopencv [no]
179   --enable-libcdio         enable audio CD grabbing with libcdio
180   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
181                            and libraw1394 [no]
182   --enable-libdirac        enable Dirac support via libdirac [no]
183   --enable-libfaac         enable FAAC support via libfaac [no]
184   --enable-libfreetype     enable libfreetype [no]
185   --enable-libgsm          enable GSM support via libgsm [no]
186   --enable-libmodplug      enable ModPlug via libmodplug [no]
187   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
188   --enable-libnut          enable NUT (de)muxing via libnut,
189                            native (de)muxer exists [no]
190   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [no]
191   --enable-libpulse        enable Pulseaudio input via libpulse [no]
192   --enable-librtmp         enable RTMP[E] support via librtmp [no]
193   --enable-libschroedinger enable Dirac support via libschroedinger [no]
194   --enable-libspeex        enable Speex support via libspeex [no]
195   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
196   --enable-libtheora       enable Theora encoding via libtheora [no]
197   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
198   --enable-libv4l2         enable libv4l2/v4l-utils [no]
199   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
200   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
201   --enable-libvorbis       enable Vorbis encoding via libvorbis,
202                            native implementation exists [no]
203   --enable-libvpx          enable VP8 support via libvpx [no]
204   --enable-libx264         enable H.264 encoding via x264 [no]
205   --enable-libxavs         enable AVS encoding via xavs [no]
206   --enable-libxvid         enable Xvid encoding via xvidcore,
207                            native MPEG-4/Xvid encoder exists [no]
208   --enable-openal          enable OpenAL 1.1 capture support [no]
209   --enable-openssl         enable openssl [no]
210   --enable-zlib            enable zlib [autodetect]
211
212 Advanced options (experts only):
213   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
214   --enable-cross-compile   assume a cross-compiler is used
215   --sysroot=PATH           root of cross-build tree
216   --sysinclude=PATH        location of cross-build system headers
217   --target-os=OS           compiler targets OS [$target_os]
218   --target-exec=CMD        command to run executables on target
219   --target-path=DIR        path to view of build directory on target
220   --nm=NM                  use nm tool NM [$nm_default]
221   --ar=AR                  use archive tool AR [$ar_default]
222   --as=AS                  use assembler AS [$as_default]
223   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
224   --cc=CC                  use C compiler CC [$cc_default]
225   --cxx=CXX                use C compiler CXX [$cxx_default]
226   --ld=LD                  use linker LD [$ld_default]
227   --host-cc=HOSTCC         use host C compiler HOSTCC
228   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
229   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
230   --host-libs=HLIBS        use libs HLIBS when linking for host
231   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
232   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
233   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
234   --extra-libs=ELIBS       add ELIBS [$ELIBS]
235   --extra-version=STRING   version string suffix []
236   --optflags               override optimization-related compiler flags
237   --build-suffix=SUFFIX    library name suffix []
238   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
239   --progs-suffix=SUFFIX    program name suffix []
240   --arch=ARCH              select architecture [$arch]
241   --cpu=CPU                select the minimum required CPU (affects
242                            instruction selection, may crash on older CPUs)
243   --enable-pic             build position-independent code
244   --enable-sram            allow use of on-chip SRAM
245   --disable-symver         disable symbol versioning
246   --disable-fastdiv        disable table-based division
247   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
248   --disable-safe-bitstream-reader
249                            disable buffer boundary checking in bitreaders
250                            (faster, but may crash)
251   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
252
253 Optimization options (experts only):
254   --disable-asm            disable all assembler optimizations
255   --disable-altivec        disable AltiVec optimizations
256   --disable-amd3dnow       disable 3DNow! optimizations
257   --disable-amd3dnowext    disable 3DNow! extended optimizations
258   --disable-mmx            disable MMX optimizations
259   --disable-mmx2           disable MMX2 optimizations
260   --disable-sse            disable SSE optimizations
261   --disable-ssse3          disable SSSE3 optimizations
262   --disable-avx            disable AVX optimizations
263   --disable-armv5te        disable armv5te optimizations
264   --disable-armv6          disable armv6 optimizations
265   --disable-armv6t2        disable armv6t2 optimizations
266   --disable-armvfp         disable ARM VFP optimizations
267   --disable-mmi            disable MMI optimizations
268   --disable-neon           disable NEON optimizations
269   --disable-vis            disable VIS optimizations
270   --disable-yasm           disable use of yasm assembler
271   --postproc-version=V     build libpostproc version V.
272                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
273
274 Developer options (useful when working on FFmpeg itself):
275   --enable-coverage        build with test coverage instrumentation
276   --disable-debug          disable debugging symbols
277   --enable-debug=LEVEL     set the debug level [$debuglevel]
278   --disable-optimizations  disable compiler optimizations
279   --enable-extra-warnings  enable more compiler warnings
280   --disable-stripping      disable stripping of executables and shared libraries
281   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
282                            2 causes a slowdown at runtime.
283   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
284                            leaks and errors, using the specified valgrind binary.
285                            Cannot be combined with --target-exec
286   --samples=PATH           location of test samples for FATE, if not set use
287                            \$FATE_SAMPLES at make invocation time.
288   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
289                            should be used only for debugging purposes)
290
291 NOTE: Object files are built at the place where configure is launched.
292 EOF
293   exit 0
294 }
295
296 quotes='""'
297
298 log(){
299     echo "$@" >> $logfile
300 }
301
302 log_file(){
303     log BEGIN $1
304     pr -n -t $1 >> $logfile
305     log END $1
306 }
307
308 echolog(){
309     log "$@"
310     echo "$@"
311 }
312
313 warn(){
314     log "WARNING: $*"
315     WARNINGS="${WARNINGS}WARNING: $*\n"
316 }
317
318 die(){
319     echolog "$@"
320     cat <<EOF
321
322 If you think configure made a mistake, make sure you are using the latest
323 version from Git.  If the latest version fails, report the problem to the
324 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
325 EOF
326     if disabled logging; then
327         cat <<EOF
328 Rerun configure with logging enabled (do not use --disable-logging), and
329 include the log this produces with your report.
330 EOF
331     else
332 cat <<EOF
333 Include the log file "$logfile" produced by configure as this will help
334 solving the problem.
335 EOF
336     fi
337     exit 1
338 }
339
340 # Avoid locale weirdness, besides we really just want to translate ASCII.
341 toupper(){
342     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
343 }
344
345 tolower(){
346     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
347 }
348
349 c_escape(){
350     echo "$*" | sed 's/["\\]/\\\0/g'
351 }
352
353 sh_quote(){
354     v=$(echo "$1" | sed "s/'/'\\\\''/g")
355     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
356     echo "$v"
357 }
358
359 cleanws(){
360     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
361 }
362
363 filter(){
364     pat=$1
365     shift
366     for v; do
367         eval "case $v in $pat) echo $v ;; esac"
368     done
369 }
370
371 filter_out(){
372     pat=$1
373     shift
374     for v; do
375         eval "case $v in $pat) ;; *) echo $v ;; esac"
376     done
377 }
378
379 map(){
380     m=$1
381     shift
382     for v; do eval $m; done
383 }
384
385 set_all(){
386     value=$1
387     shift
388     for var in $*; do
389         eval $var=$value
390     done
391 }
392
393 set_weak(){
394     value=$1
395     shift
396     for var; do
397         eval : \${$var:=$value}
398     done
399 }
400
401 set_safe(){
402     var=$1
403     shift
404     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
405 }
406
407 get_safe(){
408     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
409 }
410
411 pushvar(){
412     for var in $*; do
413         eval level=\${${var}_level:=0}
414         eval ${var}_${level}="\$$var"
415         eval ${var}_level=$(($level+1))
416     done
417 }
418
419 popvar(){
420     for var in $*; do
421         eval level=\${${var}_level:-0}
422         test $level = 0 && continue
423         eval level=$(($level-1))
424         eval $var="\${${var}_${level}}"
425         eval ${var}_level=$level
426         eval unset ${var}_${level}
427     done
428 }
429
430 enable(){
431     set_all yes $*
432 }
433
434 disable(){
435     set_all no $*
436 }
437
438 enable_weak(){
439     set_weak yes $*
440 }
441
442 disable_weak(){
443     set_weak no $*
444 }
445
446 enable_safe(){
447     for var; do
448         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
449     done
450 }
451
452 disable_safe(){
453     for var; do
454         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
455     done
456 }
457
458 do_enable_deep(){
459     for var; do
460         enabled $var && continue
461         eval sel="\$${var}_select"
462         eval sgs="\$${var}_suggest"
463         pushvar var sgs
464         enable_deep $sel
465         popvar sgs
466         enable_deep_weak $sgs
467         popvar var
468     done
469 }
470
471 enable_deep(){
472     do_enable_deep $*
473     enable $*
474 }
475
476 enable_deep_weak(){
477     do_enable_deep $*
478     enable_weak $*
479 }
480
481 enabled(){
482     test "${1#!}" = "$1" && op== || op=!=
483     eval test "x\$${1#!}" $op "xyes"
484 }
485
486 disabled(){
487     test "${1#!}" = "$1" && op== || op=!=
488     eval test "x\$${1#!}" $op "xno"
489 }
490
491 enabled_all(){
492     for opt; do
493         enabled $opt || return 1
494     done
495 }
496
497 disabled_all(){
498     for opt; do
499         disabled $opt || return 1
500     done
501 }
502
503 enabled_any(){
504     for opt; do
505         enabled $opt && return 0
506     done
507 }
508
509 disabled_any(){
510     for opt; do
511         disabled $opt && return 0
512     done
513     return 1
514 }
515
516 set_default(){
517     for opt; do
518         eval : \${$opt:=\$${opt}_default}
519     done
520 }
521
522 is_in(){
523     value=$1
524     shift
525     for var in $*; do
526         [ $var = $value ] && return 0
527     done
528     return 1
529 }
530
531 check_deps(){
532     for cfg; do
533         cfg="${cfg#!}"
534         enabled ${cfg}_checking && die "Circular dependency for $cfg."
535         disabled ${cfg}_checking && continue
536         enable ${cfg}_checking
537
538         eval dep_all="\$${cfg}_deps"
539         eval dep_any="\$${cfg}_deps_any"
540         eval dep_sel="\$${cfg}_select"
541         eval dep_sgs="\$${cfg}_suggest"
542         eval dep_ifa="\$${cfg}_if"
543         eval dep_ifn="\$${cfg}_if_any"
544
545         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
546         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
547         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
548
549         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
550         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
551         enabled_all  $dep_all || disable $cfg
552         enabled_any  $dep_any || disable $cfg
553         disabled_any $dep_sel && disable $cfg
554
555         if enabled $cfg; then
556             eval dep_extralibs="\$${cfg}_extralibs"
557             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
558             enable_deep $dep_sel
559             enable_deep_weak $dep_sgs
560         fi
561
562         disable ${cfg}_checking
563     done
564 }
565
566 print_config_h(){
567     enabled $1 && v=1 || v=0
568     echo "#define $2 $v"
569 }
570
571 print_config_mak(){
572     enabled $1 && v= || v=!
573     echo "$v$2=yes"
574 }
575
576 print_config_asm(){
577     enabled $1 && v=1 || v=0
578     echo "%define $2 $v"
579 }
580
581 print_config(){
582     pfx=$1
583     files=$2
584     shift 2
585     for cfg; do
586         ucname="$(toupper $cfg)"
587         for f in $files; do
588             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
589         done
590     done
591 }
592
593 print_enabled(){
594     test "$1" = -n && end=" " && shift || end="\n"
595     suf=$1
596     shift
597     for v; do
598         enabled $v && printf "%s$end" ${v%$suf};
599     done
600 }
601
602 append(){
603     var=$1
604     shift
605     eval "$var=\"\$$var $*\""
606 }
607
608 prepend(){
609     var=$1
610     shift
611     eval "$var=\"$* \$$var\""
612 }
613
614 add_cppflags(){
615     append CPPFLAGS $($filter_cppflags "$@")
616 }
617
618 add_cflags(){
619     append CFLAGS $($filter_cflags "$@")
620 }
621
622 add_cxxflags(){
623     append CXXFLAGS $($filter_cflags "$@")
624 }
625
626 add_asflags(){
627     append ASFLAGS $($filter_asflags "$@")
628 }
629
630 add_ldflags(){
631     append LDFLAGS "$@"
632 }
633
634 add_extralibs(){
635     prepend extralibs "$@"
636 }
637
638 check_cmd(){
639     log "$@"
640     "$@" >> $logfile 2>&1
641 }
642
643 check_cc(){
644     log check_cc "$@"
645     cat > $TMPC
646     log_file $TMPC
647     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
648 }
649
650 check_cxx(){
651     log check_cxx "$@"
652     cat > $TMPCPP
653     log_file $TMPCPP
654     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
655 }
656
657 check_cpp(){
658     log check_cpp "$@"
659     cat > $TMPC
660     log_file $TMPC
661     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
662 }
663
664 check_as(){
665     log check_as "$@"
666     cat > $TMPC
667     log_file $TMPC
668     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
669 }
670
671 check_asm(){
672     log check_asm "$@"
673     name="$1"
674     code="$2"
675     shift 2
676     disable $name
677     check_as "$@" <<EOF && enable $name
678 void foo(void){ __asm__ volatile($code); }
679 EOF
680 }
681
682 check_yasm(){
683     log check_yasm "$@"
684     echo "$1" > $TMPS
685     log_file $TMPS
686     shift 1
687     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
688 }
689
690 check_ld(){
691     log check_ld "$@"
692     type=$1
693     shift 1
694     flags=''
695     libs=''
696     for f; do
697         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
698     done
699     check_$type $($filter_cflags $flags) || return
700     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
701 }
702
703 check_cppflags(){
704     log check_cppflags "$@"
705     set -- $($filter_cppflags "$@")
706     check_cc "$@" <<EOF && append CPPFLAGS "$@"
707 int x;
708 EOF
709 }
710
711 check_cflags(){
712     log check_cflags "$@"
713     set -- $($filter_cflags "$@")
714     check_cc "$@" <<EOF && append CFLAGS "$@"
715 int x;
716 EOF
717 }
718
719 check_cxxflags(){
720     log check_cxxflags "$@"
721     set -- $($filter_cflags "$@")
722     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
723 int x;
724 EOF
725 }
726
727 test_ldflags(){
728     log test_ldflags "$@"
729     check_ld "cc" "$@" <<EOF
730 int main(void){ return 0; }
731 EOF
732 }
733
734 check_ldflags(){
735     log check_ldflags "$@"
736     test_ldflags "$@" && add_ldflags "$@"
737 }
738
739 check_header(){
740     log check_header "$@"
741     header=$1
742     shift
743     disable_safe $header
744     check_cpp "$@" <<EOF && enable_safe $header
745 #include <$header>
746 int x;
747 EOF
748 }
749
750 check_func(){
751     log check_func "$@"
752     func=$1
753     shift
754     disable $func
755     check_ld "cc" "$@" <<EOF && enable $func
756 extern int $func();
757 int main(void){ $func(); }
758 EOF
759 }
760
761 check_mathfunc(){
762     log check_mathfunc "$@"
763     func=$1
764     shift
765     disable $func
766     check_ld "cc" "$@" <<EOF && enable $func
767 #include <math.h>
768 float foo(float f) { return $func(f); }
769 int main(void){ return (int) foo; }
770 EOF
771 }
772
773 check_func_headers(){
774     log check_func_headers "$@"
775     headers=$1
776     funcs=$2
777     shift 2
778     {
779         for hdr in $headers; do
780             echo "#include <$hdr>"
781         done
782         for func in $funcs; do
783             echo "long check_$func(void) { return (long) $func; }"
784         done
785         echo "int main(void) { return 0; }"
786     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
787 }
788
789 check_class_headers_cpp(){
790     log check_class_headers_cpp "$@"
791     headers=$1
792     classes=$2
793     shift 2
794     {
795         for hdr in $headers; do
796             echo "#include <$hdr>"
797         done
798         echo "int main(void) { "
799         i=1
800         for class in $classes; do
801             echo "$class obj$i;"
802             i=$(expr $i + 1)
803         done
804         echo "return 0; }"
805     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
806 }
807
808 check_cpp_condition(){
809     log check_cpp_condition "$@"
810     header=$1
811     condition=$2
812     shift 2
813     check_cpp $($filter_cppflags "$@") <<EOF
814 #include <$header>
815 #if !($condition)
816 #error "unsatisfied condition: $condition"
817 #endif
818 EOF
819 }
820
821 check_lib(){
822     log check_lib "$@"
823     header="$1"
824     func="$2"
825     shift 2
826     check_header $header && check_func $func "$@" && add_extralibs "$@"
827 }
828
829 check_lib2(){
830     log check_lib2 "$@"
831     headers="$1"
832     funcs="$2"
833     shift 2
834     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
835 }
836
837 check_lib_cpp(){
838     log check_lib_cpp "$@"
839     headers="$1"
840     classes="$2"
841     shift 2
842     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
843 }
844
845 check_pkg_config(){
846     log check_pkg_config "$@"
847     pkg="$1"
848     headers="$2"
849     funcs="$3"
850     shift 3
851     $pkg_config --exists $pkg 2>/dev/null || return
852     pkg_cflags=$($pkg_config --cflags $pkg)
853     pkg_libs=$($pkg_config --libs $pkg)
854     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
855         set_safe ${pkg}_cflags $pkg_cflags   &&
856         set_safe ${pkg}_libs   $pkg_libs
857 }
858
859 check_exec(){
860     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
861 }
862
863 check_exec_crash(){
864     code=$(cat)
865
866     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
867     # are safe but may not be available everywhere.  Thus we use
868     # raise(SIGTERM) instead.  The check is run in a subshell so we
869     # can redirect the "Terminated" message from the shell.  SIGBUS
870     # is not defined by standard C so it is used conditionally.
871
872     (check_exec "$@") >> $logfile 2>&1 <<EOF
873 #include <signal.h>
874 static void sighandler(int sig){
875     raise(SIGTERM);
876 }
877 int func(void){
878     $code
879 }
880 int (*func_ptr)(void) = func;
881 int main(void){
882     signal(SIGILL, sighandler);
883     signal(SIGFPE, sighandler);
884     signal(SIGSEGV, sighandler);
885 #ifdef SIGBUS
886     signal(SIGBUS, sighandler);
887 #endif
888     return func_ptr();
889 }
890 EOF
891 }
892
893 check_type(){
894     log check_type "$@"
895     headers=$1
896     type=$2
897     shift 2
898     disable_safe "$type"
899     incs=""
900     for hdr in $headers; do
901         incs="$incs
902 #include <$hdr>"
903     done
904     check_cc "$@" <<EOF && enable_safe "$type"
905 $incs
906 $type v;
907 EOF
908 }
909
910 check_struct(){
911     log check_type "$@"
912     headers=$1
913     struct=$2
914     member=$3
915     shift 3
916     disable_safe "${struct}_${member}"
917     incs=""
918     for hdr in $headers; do
919         incs="$incs
920 #include <$hdr>"
921     done
922     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
923 $incs
924 const void *p = &(($struct *)0)->$member;
925 EOF
926 }
927
928 require(){
929     name="$1"
930     header="$2"
931     func="$3"
932     shift 3
933     check_lib $header $func "$@" || die "ERROR: $name not found"
934 }
935
936 require2(){
937     name="$1"
938     headers="$2"
939     func="$3"
940     shift 3
941     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
942 }
943
944 require_cpp(){
945     name="$1"
946     headers="$2"
947     classes="$3"
948     shift 3
949     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
950 }
951
952 require_pkg_config(){
953     pkg="$1"
954     check_pkg_config "$@" || die "ERROR: $pkg not found"
955     add_cflags    $(get_safe ${pkg}_cflags)
956     add_extralibs $(get_safe ${pkg}_libs)
957 }
958
959 check_host_cc(){
960     log check_host_cc "$@"
961     cat > $TMPC
962     log_file $TMPC
963     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
964 }
965
966 check_host_cflags(){
967     log check_host_cflags "$@"
968     check_host_cc "$@" <<EOF && append host_cflags "$@"
969 int x;
970 EOF
971 }
972
973 apply(){
974     file=$1
975     shift
976     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
977 }
978
979 cp_if_changed(){
980     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
981     mkdir -p "$(dirname $2)"
982     cp -f "$1" "$2"
983 }
984
985 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
986 # system-dependent things.
987
988 COMPONENT_LIST="
989     bsfs
990     decoders
991     demuxers
992     encoders
993     filters
994     hwaccels
995     indevs
996     muxers
997     outdevs
998     parsers
999     protocols
1000 "
1001
1002 PROGRAM_LIST="
1003     ffplay
1004     ffprobe
1005     ffserver
1006     ffmpeg
1007 "
1008
1009 CONFIG_LIST="
1010     $COMPONENT_LIST
1011     $PROGRAM_LIST
1012     ac3dsp
1013     avcodec
1014     avdevice
1015     avfilter
1016     avformat
1017     avisynth
1018     bzlib
1019     crystalhd
1020     dct
1021     doc
1022     dwt
1023     dxva2
1024     fastdiv
1025     fft
1026     fontconfig
1027     frei0r
1028     gnutls
1029     gpl
1030     gray
1031     hardcoded_tables
1032     libaacplus
1033     libass
1034     libbluray
1035     libcdio
1036     libcelt
1037     libdc1394
1038     libdirac
1039     libfaac
1040     libfreetype
1041     libgsm
1042     libmodplug
1043     libmp3lame
1044     libnut
1045     libopencore_amrnb
1046     libopencore_amrwb
1047     libopencv
1048     libopenjpeg
1049     libpulse
1050     librtmp
1051     libschroedinger
1052     libspeex
1053     libstagefright_h264
1054     libtheora
1055     libutvideo
1056     libv4l2
1057     libvo_aacenc
1058     libvo_amrwbenc
1059     libvorbis
1060     libvpx
1061     libx264
1062     libxavs
1063     libxvid
1064     lsp
1065     mdct
1066     memalign_hack
1067     mpegaudiodsp
1068     network
1069     nonfree
1070     openal
1071     openssl
1072     pic
1073     postproc
1074     rdft
1075     rtpdec
1076     runtime_cpudetect
1077     safe_bitstream_reader
1078     shared
1079     sinewin
1080     small
1081     sram
1082     static
1083     swresample
1084     swscale
1085     swscale_alpha
1086     thumb
1087     vaapi
1088     vda
1089     vdpau
1090     version3
1091     xmm_clobber_test
1092     x11grab
1093     zlib
1094 "
1095
1096 THREADS_LIST='
1097     pthreads
1098     w32threads
1099     os2threads
1100 '
1101
1102 ARCH_LIST='
1103     alpha
1104     arm
1105     avr32
1106     avr32_ap
1107     avr32_uc
1108     bfin
1109     ia64
1110     m68k
1111     mips
1112     mips64
1113     parisc
1114     ppc
1115     ppc64
1116     s390
1117     sh4
1118     sparc
1119     sparc64
1120     tomi
1121     x86
1122     x86_32
1123     x86_64
1124 '
1125
1126 ARCH_EXT_LIST='
1127     altivec
1128     amd3dnow
1129     amd3dnowext
1130     armv5te
1131     armv6
1132     armv6t2
1133     armvfp
1134     avx
1135     mmi
1136     mmx
1137     mmx2
1138     neon
1139     ppc4xx
1140     sse
1141     ssse3
1142     vfpv3
1143     vis
1144 '
1145
1146 HAVE_LIST_PUB='
1147     bigendian
1148     fast_unaligned
1149 '
1150
1151 HAVE_LIST="
1152     $ARCH_EXT_LIST
1153     $HAVE_LIST_PUB
1154     $THREADS_LIST
1155     aligned_stack
1156     alsa_asoundlib_h
1157     altivec_h
1158     arpa_inet_h
1159     asm_mod_y
1160     asm_types_h
1161     attribute_may_alias
1162     attribute_packed
1163     cbrtf
1164     clock_gettime
1165     closesocket
1166     cmov
1167     dcbzl
1168     dev_bktr_ioctl_bt848_h
1169     dev_bktr_ioctl_meteor_h
1170     dev_ic_bt8xx_h
1171     dev_video_bktr_ioctl_bt848_h
1172     dev_video_meteor_ioctl_meteor_h
1173     dlfcn_h
1174     dlopen
1175     dos_paths
1176     ebp_available
1177     ebx_available
1178     exp2
1179     exp2f
1180     fast_64bit
1181     fast_clz
1182     fast_cmov
1183     fcntl
1184     fork
1185     getaddrinfo
1186     gethrtime
1187     GetProcessAffinityMask
1188     GetProcessMemoryInfo
1189     GetProcessTimes
1190     getrusage
1191     glob
1192     gnu_as
1193     ibm_asm
1194     inet_aton
1195     inline_asm
1196     isatty
1197     kbhit
1198     ldbrx
1199     libdc1394_1
1200     libdc1394_2
1201     llrint
1202     llrintf
1203     local_aligned_16
1204     local_aligned_8
1205     localtime_r
1206     log2
1207     log2f
1208     loongson
1209     lrint
1210     lrintf
1211     lzo1x_999_compress
1212     machine_ioctl_bt848_h
1213     machine_ioctl_meteor_h
1214     makeinfo
1215     malloc_h
1216     MapViewOfFile
1217     memalign
1218     mkstemp
1219     mmap
1220     PeekNamedPipe
1221     poll_h
1222     posix_memalign
1223     round
1224     roundf
1225     sched_getaffinity
1226     sdl
1227     sdl_video_size
1228     setmode
1229     setrlimit
1230     sndio_h
1231     socklen_t
1232     soundcard_h
1233     strerror_r
1234     strptime
1235     struct_addrinfo
1236     struct_ipv6_mreq
1237     struct_rusage_ru_maxrss
1238     struct_sockaddr_in6
1239     struct_sockaddr_sa_len
1240     struct_sockaddr_storage
1241     struct_v4l2_frmivalenum_discrete
1242     symver
1243     symver_asm_label
1244     symver_gnu_asm
1245     sysconf
1246     sysctl
1247     sys_mman_h
1248     sys_param_h
1249     sys_resource_h
1250     sys_select_h
1251     sys_soundcard_h
1252     sys_videoio_h
1253     termios_h
1254     threads
1255     trunc
1256     truncf
1257     vfp_args
1258     VirtualAlloc
1259     winsock2_h
1260     xform_asm
1261     xmm_clobbers
1262     yasm
1263 "
1264
1265 # options emitted with CONFIG_ prefix but not available on command line
1266 CONFIG_EXTRA="
1267     aandct
1268     avutil
1269     golomb
1270     gplv3
1271     h264chroma
1272     h264dsp
1273     h264pred
1274     h264qpel
1275     huffman
1276     lgplv3
1277     lpc
1278 "
1279
1280 CMDLINE_SELECT="
1281     $ARCH_EXT_LIST
1282     $CONFIG_LIST
1283     $THREADS_LIST
1284     asm
1285     coverage
1286     cross_compile
1287     debug
1288     extra_warnings
1289     logging
1290     optimizations
1291     stripping
1292     symver
1293     yasm
1294 "
1295
1296 PATHS_LIST='
1297     bindir
1298     datadir
1299     incdir
1300     libdir
1301     mandir
1302     prefix
1303     shlibdir
1304 '
1305
1306 CMDLINE_SET="
1307     $PATHS_LIST
1308     ar
1309     arch
1310     as
1311     assert_level
1312     build_suffix
1313     cc
1314     cpu
1315     cross_prefix
1316     cxx
1317     dep_cc
1318     extra_version
1319     host_cc
1320     host_cflags
1321     host_ldflags
1322     host_libs
1323     host_os
1324     install
1325     ld
1326     logfile
1327     malloc_prefix
1328     nm
1329     optflags
1330     pkg_config
1331     postproc_version
1332     progs_suffix
1333     samples
1334     strip
1335     sysinclude
1336     sysroot
1337     target_exec
1338     target_os
1339     target_path
1340     valgrind
1341     yasmexe
1342 "
1343
1344 CMDLINE_APPEND="
1345     extra_cflags
1346     extra_cxxflags
1347 "
1348
1349 # code dependency declarations
1350
1351 # architecture extensions
1352
1353 armv5te_deps="arm"
1354 armv6_deps="arm"
1355 armv6t2_deps="arm"
1356 armvfp_deps="arm"
1357 neon_deps="arm"
1358 vfpv3_deps="armvfp"
1359
1360 mmi_deps="mips"
1361
1362 altivec_deps="ppc"
1363 ppc4xx_deps="ppc"
1364
1365 vis_deps="sparc"
1366
1367 x86_64_suggest="cmov fast_cmov"
1368 amd3dnow_deps="mmx"
1369 amd3dnowext_deps="amd3dnow"
1370 mmx_deps="x86"
1371 mmx2_deps="mmx"
1372 sse_deps="mmx"
1373 ssse3_deps="sse"
1374 avx_deps="ssse3"
1375
1376 aligned_stack_if_any="ppc x86"
1377 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1378 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1379 fast_unaligned_if_any="armv6 ppc x86"
1380
1381 inline_asm_deps="!tms470"
1382 need_memalign="altivec neon sse"
1383
1384 symver_if_any="symver_asm_label symver_gnu_asm"
1385
1386 # subsystems
1387 dct_select="rdft"
1388 mdct_select="fft"
1389 rdft_select="fft"
1390 mpegaudiodsp_select="dct"
1391
1392 # decoders / encoders / hardware accelerators
1393 aac_decoder_select="mdct sinewin"
1394 aac_encoder_select="mdct sinewin"
1395 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1396 ac3_decoder_select="mdct ac3dsp ac3_parser"
1397 ac3_encoder_select="mdct ac3dsp"
1398 ac3_fixed_encoder_select="mdct ac3dsp"
1399 alac_encoder_select="lpc"
1400 amrnb_decoder_select="lsp"
1401 amrwb_decoder_select="lsp"
1402 atrac1_decoder_select="mdct sinewin"
1403 atrac3_decoder_select="mdct"
1404 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1405 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1406 cavs_decoder_select="golomb"
1407 cook_decoder_select="mdct sinewin"
1408 cscd_decoder_suggest="zlib"
1409 dca_decoder_select="mdct"
1410 dnxhd_encoder_select="aandct"
1411 dxa_decoder_select="zlib"
1412 eac3_decoder_select="ac3_decoder"
1413 eac3_encoder_select="mdct ac3dsp"
1414 eamad_decoder_select="aandct"
1415 eatgq_decoder_select="aandct"
1416 eatqi_decoder_select="aandct"
1417 ffv1_decoder_select="golomb"
1418 flac_decoder_select="golomb"
1419 flac_encoder_select="golomb lpc"
1420 flashsv_decoder_select="zlib"
1421 flashsv_encoder_select="zlib"
1422 flashsv2_encoder_select="zlib"
1423 flashsv2_decoder_select="zlib"
1424 flv_decoder_select="h263_decoder"
1425 flv_encoder_select="h263_encoder"
1426 fraps_decoder_select="huffman"
1427 h261_encoder_select="aandct"
1428 h263_decoder_select="h263_parser"
1429 h263_encoder_select="aandct"
1430 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1431 h263i_decoder_select="h263_decoder"
1432 h263p_encoder_select="h263_encoder"
1433 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1434 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1435 h264_dxva2_hwaccel_deps="dxva2api_h"
1436 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1437 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1438 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1439 h264_vda_hwaccel_select="vda h264_decoder"
1440 h264_vdpau_decoder_select="vdpau h264_decoder"
1441 imc_decoder_select="fft mdct sinewin"
1442 jpegls_decoder_select="golomb"
1443 jpegls_encoder_select="golomb"
1444 ljpeg_encoder_select="aandct"
1445 loco_decoder_select="golomb"
1446 mjpeg_encoder_select="aandct"
1447 mlp_decoder_select="mlp_parser"
1448 mp1_decoder_select="mpegaudiodsp"
1449 mp1float_decoder_select="mpegaudiodsp"
1450 mp2_decoder_select="mpegaudiodsp"
1451 mp2float_decoder_select="mpegaudiodsp"
1452 mp3_decoder_select="mpegaudiodsp"
1453 mp3adu_decoder_select="mpegaudiodsp"
1454 mp3adufloat_decoder_select="mpegaudiodsp"
1455 mp3float_decoder_select="mpegaudiodsp"
1456 mp3on4_decoder_select="mpegaudiodsp"
1457 mp3on4float_decoder_select="mpegaudiodsp"
1458 mpc7_decoder_select="mpegaudiodsp"
1459 mpc8_decoder_select="mpegaudiodsp"
1460 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1461 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1462 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1463 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1464 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1465 mpeg1video_encoder_select="aandct"
1466 mpeg2_crystalhd_decoder_select="crystalhd"
1467 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1468 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1469 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1470 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1471 mpeg2video_encoder_select="aandct"
1472 mpeg4_crystalhd_decoder_select="crystalhd"
1473 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1474 mpeg4_encoder_select="h263_encoder"
1475 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1476 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1477 msmpeg4_crystalhd_decoder_select="crystalhd"
1478 msmpeg4v1_decoder_select="h263_decoder"
1479 msmpeg4v1_encoder_select="h263_encoder"
1480 msmpeg4v2_decoder_select="h263_decoder"
1481 msmpeg4v2_encoder_select="h263_encoder"
1482 msmpeg4v3_decoder_select="h263_decoder"
1483 msmpeg4v3_encoder_select="h263_encoder"
1484 nellymoser_decoder_select="mdct sinewin"
1485 nellymoser_encoder_select="mdct sinewin"
1486 png_decoder_select="zlib"
1487 png_encoder_select="zlib"
1488 qcelp_decoder_select="lsp"
1489 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1490 ra_144_encoder_select="lpc"
1491 ralf_decoder_select="golomb"
1492 rv10_decoder_select="h263_decoder"
1493 rv10_encoder_select="h263_encoder"
1494 rv20_decoder_select="h263_decoder"
1495 rv20_encoder_select="h263_encoder"
1496 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1497 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1498 shorten_decoder_select="golomb"
1499 sipr_decoder_select="lsp"
1500 snow_decoder_select="dwt"
1501 snow_encoder_select="aandct dwt"
1502 sonic_decoder_select="golomb"
1503 sonic_encoder_select="golomb"
1504 sonic_ls_encoder_select="golomb"
1505 svq1_encoder_select="aandct"
1506 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1507 svq3_decoder_suggest="zlib"
1508 theora_decoder_select="vp3_decoder"
1509 tiff_decoder_suggest="zlib"
1510 tiff_encoder_suggest="zlib"
1511 truehd_decoder_select="mlp_decoder"
1512 tscc_decoder_select="zlib"
1513 twinvq_decoder_select="mdct lsp sinewin"
1514 vc1_crystalhd_decoder_select="crystalhd"
1515 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1516 vc1_dxva2_hwaccel_deps="dxva2api_h"
1517 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1518 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1519 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1520 vc1image_decoder_select="vc1_decoder"
1521 vorbis_decoder_select="mdct"
1522 vorbis_encoder_select="mdct"
1523 vp6_decoder_select="huffman"
1524 vp6a_decoder_select="vp6_decoder"
1525 vp6f_decoder_select="vp6_decoder"
1526 vp8_decoder_select="h264pred h264qpel"
1527 wmapro_decoder_select="mdct sinewin"
1528 wmav1_decoder_select="mdct sinewin"
1529 wmav1_encoder_select="mdct sinewin"
1530 wmav2_decoder_select="mdct sinewin"
1531 wmav2_encoder_select="mdct sinewin"
1532 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1533 wmv1_decoder_select="h263_decoder"
1534 wmv1_encoder_select="h263_encoder"
1535 wmv2_decoder_select="h263_decoder"
1536 wmv2_encoder_select="h263_encoder"
1537 wmv3_decoder_select="vc1_decoder"
1538 wmv3_crystalhd_decoder_select="crystalhd"
1539 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1540 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1541 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1542 wmv3image_decoder_select="wmv3_decoder"
1543 zerocodec_decoder_select="zlib"
1544 zlib_decoder_select="zlib"
1545 zlib_encoder_select="zlib"
1546 zmbv_decoder_select="zlib"
1547 zmbv_encoder_select="zlib"
1548
1549 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1550 vaapi_deps="va_va_h"
1551 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1552 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1553
1554 # parsers
1555 h264_parser_select="golomb h264dsp h264pred"
1556
1557 # external libraries
1558 libaacplus_encoder_deps="libaacplus"
1559 libcelt_decoder_deps="libcelt"
1560 libdirac_decoder_deps="libdirac !libschroedinger"
1561 libfaac_encoder_deps="libfaac"
1562 libgsm_decoder_deps="libgsm"
1563 libgsm_encoder_deps="libgsm"
1564 libgsm_ms_decoder_deps="libgsm"
1565 libgsm_ms_encoder_deps="libgsm"
1566 libmodplug_demuxer_deps="libmodplug"
1567 libmp3lame_encoder_deps="libmp3lame"
1568 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1569 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1570 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1571 libopenjpeg_decoder_deps="libopenjpeg"
1572 libopenjpeg_encoder_deps="libopenjpeg"
1573 libschroedinger_decoder_deps="libschroedinger"
1574 libschroedinger_encoder_deps="libschroedinger"
1575 libspeex_decoder_deps="libspeex"
1576 libspeex_encoder_deps="libspeex"
1577 libstagefright_h264_decoder_deps="libstagefright_h264"
1578 libtheora_encoder_deps="libtheora"
1579 libvo_aacenc_encoder_deps="libvo_aacenc"
1580 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1581 libvorbis_encoder_deps="libvorbis"
1582 libvpx_decoder_deps="libvpx"
1583 libvpx_encoder_deps="libvpx"
1584 libx264_encoder_deps="libx264"
1585 libx264rgb_encoder_deps="libx264"
1586 libxavs_encoder_deps="libxavs"
1587 libxvid_encoder_deps="libxvid"
1588 libutvideo_decoder_deps="libutvideo"
1589 libutvideo_encoder_deps="libutvideo"
1590
1591 # demuxers / muxers
1592 ac3_demuxer_select="ac3_parser"
1593 asf_stream_muxer_select="asf_muxer"
1594 avisynth_demuxer_deps="avisynth"
1595 dirac_demuxer_select="dirac_parser"
1596 eac3_demuxer_select="ac3_parser"
1597 flac_demuxer_select="flac_parser"
1598 ipod_muxer_select="mov_muxer"
1599 libnut_demuxer_deps="libnut"
1600 libnut_muxer_deps="libnut"
1601 matroska_audio_muxer_select="matroska_muxer"
1602 matroska_demuxer_suggest="zlib bzlib"
1603 mov_demuxer_suggest="zlib"
1604 mp3_demuxer_select="mpegaudio_parser"
1605 mp4_muxer_select="mov_muxer"
1606 mpegtsraw_demuxer_select="mpegts_demuxer"
1607 mxf_d10_muxer_select="mxf_muxer"
1608 ogg_demuxer_select="golomb"
1609 psp_muxer_select="mov_muxer"
1610 rtp_demuxer_select="sdp_demuxer"
1611 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1612 rtsp_demuxer_select="http_protocol rtpdec"
1613 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1614 sap_demuxer_select="sdp_demuxer"
1615 sap_muxer_select="rtp_muxer rtp_protocol"
1616 sdp_demuxer_select="rtpdec"
1617 spdif_muxer_select="aac_parser"
1618 tg2_muxer_select="mov_muxer"
1619 tgp_muxer_select="mov_muxer"
1620 w64_demuxer_deps="wav_demuxer"
1621
1622 # indevs / outdevs
1623 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1624 alsa_outdev_deps="alsa_asoundlib_h"
1625 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1626 dshow_indev_deps="IBaseFilter"
1627 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1628 dv1394_indev_deps="dv1394 dv_demuxer"
1629 fbdev_indev_deps="linux_fb_h"
1630 jack_indev_deps="jack_jack_h sem_timedwait"
1631 lavfi_indev_deps="avfilter"
1632 libcdio_indev_deps="libcdio"
1633 libdc1394_indev_deps="libdc1394"
1634 libv4l2_indev_deps="libv4l2"
1635 openal_indev_deps="openal"
1636 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1637 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1638 pulse_indev_deps="libpulse"
1639 sdl_outdev_deps="sdl"
1640 sndio_indev_deps="sndio_h"
1641 sndio_outdev_deps="sndio_h"
1642 v4l_indev_deps="linux_videodev_h"
1643 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1644 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1645 vfwcap_indev_extralibs="-lavicap32"
1646 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1647
1648 # protocols
1649 bluray_protocol_deps="libbluray"
1650 gopher_protocol_deps="network"
1651 httpproxy_protocol_deps="network"
1652 httpproxy_protocol_select="tcp_protocol"
1653 http_protocol_deps="network"
1654 http_protocol_select="tcp_protocol"
1655 https_protocol_select="tls_protocol"
1656 librtmp_protocol_deps="librtmp"
1657 librtmpe_protocol_deps="librtmp"
1658 librtmps_protocol_deps="librtmp"
1659 librtmpt_protocol_deps="librtmp"
1660 librtmpte_protocol_deps="librtmp"
1661 mmsh_protocol_select="http_protocol"
1662 mmst_protocol_deps="network"
1663 rtmp_protocol_deps="!librtmp_protocol"
1664 rtmp_protocol_select="tcp_protocol"
1665 rtp_protocol_select="udp_protocol"
1666 tcp_protocol_deps="network"
1667 tls_protocol_deps_any="openssl gnutls"
1668 tls_protocol_select="tcp_protocol"
1669 udp_protocol_deps="network"
1670
1671 # filters
1672 aconvert_filter_deps="swresample"
1673 amovie_filter_deps="avcodec avformat"
1674 aresample_filter_deps="swresample"
1675 ass_filter_deps="libass"
1676 blackframe_filter_deps="gpl"
1677 boxblur_filter_deps="gpl"
1678 colormatrix_filter_deps="gpl"
1679 cropdetect_filter_deps="gpl"
1680 delogo_filter_deps="gpl"
1681 drawtext_filter_deps="libfreetype"
1682 frei0r_filter_deps="frei0r dlopen"
1683 frei0r_filter_extralibs='$ldl'
1684 frei0r_src_filter_deps="frei0r dlopen"
1685 frei0r_src_filter_extralibs='$ldl'
1686 hqdn3d_filter_deps="gpl"
1687 movie_filter_deps="avcodec avformat"
1688 mp_filter_deps="gpl avcodec swscale postproc"
1689 mptestsrc_filter_deps="gpl"
1690 negate_filter_deps="lut_filter"
1691 ocv_filter_deps="libopencv"
1692 pan_filter_deps="swresample"
1693 removelogo_filter_deps="avcodec avformat swscale"
1694 scale_filter_deps="swscale"
1695 super2xsai_filter_deps="gpl"
1696 tinterlace_filter_deps="gpl"
1697 yadif_filter_deps="gpl"
1698
1699 # libraries
1700 avdevice_deps="avcodec avformat"
1701 avformat_deps="avcodec"
1702 postproc_deps="gpl"
1703
1704 # programs
1705 ffplay_deps="avcodec avformat swscale swresample sdl"
1706 ffplay_select="buffersink_filter rdft"
1707 ffprobe_deps="avcodec avformat"
1708 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1709 ffserver_extralibs='$ldl'
1710 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1711 ffmpeg_select="buffersink_filter"
1712
1713 doc_deps="texi2html"
1714
1715 # tests
1716
1717 test_deps(){
1718     suf1=$1
1719     suf2=$2
1720     shift 2
1721     for v; do
1722         dep=${v%=*}
1723         tests=${v#*=}
1724         for name in ${tests}; do
1725             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1726         done
1727     done
1728 }
1729
1730 mxf_d10_test_deps="avfilter"
1731 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1732
1733 test_deps _encoder _decoder                                             \
1734     adpcm_ima_qt                                                        \
1735     adpcm_ima_wav                                                       \
1736     adpcm_ms                                                            \
1737     adpcm_swf                                                           \
1738     adpcm_yamaha=adpcm_yam                                              \
1739     alac                                                                \
1740     asv1                                                                \
1741     asv2                                                                \
1742     bmp                                                                 \
1743     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1744     dvvideo="dv dv_411 dv50"                                            \
1745     ffv1                                                                \
1746     flac                                                                \
1747     flashsv                                                             \
1748     flv                                                                 \
1749     adpcm_g726=g726                                                     \
1750     gif                                                                 \
1751     h261                                                                \
1752     h263="h263 h263p"                                                   \
1753     huffyuv                                                             \
1754     jpegls                                                              \
1755     mjpeg="jpg mjpeg ljpeg"                                             \
1756     mp2                                                                 \
1757     mpeg1video="mpeg mpeg1b"                                            \
1758     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1759     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1760     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1761     mpeg4="mpeg4thread error rc"                                        \
1762     msmpeg4v3=msmpeg4                                                   \
1763     msmpeg4v2                                                           \
1764     pbm=pbmpipe                                                         \
1765     pcx                                                                 \
1766     pgm="pgm pgmpipe"                                                   \
1767     png                                                                 \
1768     ppm="ppm ppmpipe"                                                   \
1769     rawvideo="rgb yuv"                                                  \
1770     roq                                                                 \
1771     rv10                                                                \
1772     rv20                                                                \
1773     sgi                                                                 \
1774     snow="snow snowll"                                                  \
1775     svq1                                                                \
1776     targa=tga                                                           \
1777     tiff                                                                \
1778     wmav1                                                               \
1779     wmav2                                                               \
1780     wmv1                                                                \
1781     wmv2                                                                \
1782
1783 test_deps _muxer _demuxer                                               \
1784     aiff                                                                \
1785     pcm_alaw=alaw                                                       \
1786     asf                                                                 \
1787     au                                                                  \
1788     avi                                                                 \
1789     dv=dv_fmt                                                           \
1790     ffm                                                                 \
1791     flv=flv_fmt                                                         \
1792     gxf                                                                 \
1793     matroska=mkv                                                        \
1794     mmf                                                                 \
1795     mov="mov ismv"                                                      \
1796     pcm_mulaw=mulaw                                                     \
1797     mxf="mxf mxf_d10"                                                   \
1798     nut                                                                 \
1799     ogg="ogg ogg_vp3"                                                   \
1800     rawvideo=pixfmt                                                     \
1801     rm                                                                  \
1802     swf                                                                 \
1803     mpegts=ts                                                           \
1804     voc                                                                 \
1805     wav                                                                 \
1806     yuv4mpegpipe=yuv4mpeg                                               \
1807
1808 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1809 flashsv2_test_deps="zlib"
1810 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1811 mpng_test_deps="zlib"
1812 pp_test_deps="mp_filter"
1813 pp2_test_deps="mp_filter"
1814 pp3_test_deps="mp_filter"
1815 pp4_test_deps="mp_filter"
1816 pp5_test_deps="mp_filter"
1817 pp6_test_deps="mp_filter"
1818 zlib_test_deps="zlib"
1819 zmbv_test_deps="zlib"
1820
1821 # default parameters
1822
1823 logfile="config.log"
1824
1825 # installation paths
1826 prefix_default="/usr/local"
1827 bindir_default='${prefix}/bin'
1828 datadir_default='${prefix}/share/ffmpeg'
1829 incdir_default='${prefix}/include'
1830 libdir_default='${prefix}/lib'
1831 mandir_default='${prefix}/share/man'
1832 shlibdir_default="$libdir_default"
1833 postproc_version_default="current"
1834
1835 # toolchain
1836 ar_default="ar"
1837 cc_default="gcc"
1838 cxx_default="g++"
1839 cc_version=\"unknown\"
1840 host_cc_default="gcc"
1841 install="install"
1842 ln_s="ln -sf"
1843 nm_default="nm"
1844 objformat="elf"
1845 pkg_config_default=pkg-config
1846 ranlib="ranlib"
1847 strip_default="strip"
1848 yasmexe_default="yasm"
1849
1850 nm_opts='-g'
1851 nogas=":"
1852
1853 # machine
1854 arch_default=$(uname -m)
1855 cpu="generic"
1856
1857 # OS
1858 target_os_default=$(tolower $(uname -s))
1859 host_os=$target_os_default
1860
1861 # alternative libpostproc version
1862 ALT_PP_VER_MAJOR=51
1863 ALT_PP_VER_MINOR=2
1864 ALT_PP_VER_MICRO=101
1865 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1866
1867 # configurable options
1868 enable $PROGRAM_LIST
1869
1870 enable avcodec
1871 enable avdevice
1872 enable avfilter
1873 enable avformat
1874 enable avutil
1875 enable postproc
1876 enable stripping
1877 enable swresample
1878 enable swscale
1879
1880 enable asm
1881 enable debug
1882 enable doc
1883 enable fastdiv
1884 enable network
1885 enable optimizations
1886 enable safe_bitstream_reader
1887 enable static
1888 enable swscale_alpha
1889
1890 # build settings
1891 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1892 FFSERVERLDFLAGS=-Wl,-E
1893 LIBPREF="lib"
1894 LIBSUF=".a"
1895 FULLNAME='$(NAME)$(BUILDSUF)'
1896 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1897 SLIBPREF="lib"
1898 SLIBSUF=".so"
1899 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1900 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1901 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1902 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1903 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1904 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1905
1906 AS_O='-o $@'
1907 CC_O='-o $@'
1908 CXX_O='-o $@'
1909
1910 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1911 host_libs='-lm'
1912
1913 target_path='$(CURDIR)'
1914
1915 # since the object filename is not given with the -MM flag, the compiler
1916 # is only able to print the basename, and we must add the path ourselves
1917 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1918 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1919
1920 # find source path
1921 if test -f configure; then
1922     source_path=.
1923 else
1924     source_path=$(cd $(dirname "$0"); pwd)
1925     echo "$source_path" | grep -q '[[:blank:]]' &&
1926         die "Out of tree builds are impossible with whitespace in source path."
1927     test -e "$source_path/config.h" &&
1928         die "Out of tree builds are impossible with config.h in source dir."
1929 fi
1930
1931 for v in "$@"; do
1932     r=${v#*=}
1933     l=${v%"$r"}
1934     r=$(sh_quote "$r")
1935     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1936 done
1937
1938 find_things(){
1939     thing=$1
1940     pattern=$2
1941     file=$source_path/$3
1942     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1943 }
1944
1945 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1946 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1947 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1948 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1949 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1950 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1951 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1952 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1953 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1954 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1955 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1956
1957 ALL_COMPONENTS="
1958     $BSF_LIST
1959     $DECODER_LIST
1960     $DEMUXER_LIST
1961     $ENCODER_LIST
1962     $FILTER_LIST
1963     $HWACCEL_LIST
1964     $INDEV_LIST
1965     $MUXER_LIST
1966     $OUTDEV_LIST
1967     $PARSER_LIST
1968     $PROTOCOL_LIST
1969 "
1970
1971 find_tests(){
1972     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1973 }
1974
1975 ACODEC_TESTS=$(find_tests acodec)
1976 VCODEC_TESTS=$(find_tests vsynth1)
1977 LAVF_FATE_TESTS=$(find_tests lavf-fate)
1978 LAVF_TESTS=$(find_tests lavf)
1979 LAVFI_TESTS=$(find_tests lavfi)
1980 SEEK_TESTS=$(find_tests seek seek_)
1981
1982 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1983
1984 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1985
1986 for n in $COMPONENT_LIST; do
1987     v=$(toupper ${n%s})_LIST
1988     eval enable \$$v
1989     eval ${n}_if_any="\$$v"
1990 done
1991
1992 enable $ARCH_EXT_LIST $ALL_TESTS
1993
1994 die_unknown(){
1995     echo "Unknown option \"$1\"."
1996     echo "See $0 --help for available options."
1997     exit 1
1998 }
1999
2000 show_list() {
2001     suffix=_$1
2002     shift
2003     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2004     exit 0
2005 }
2006
2007 for opt do
2008     optval="${opt#*=}"
2009     case "$opt" in
2010     --extra-ldflags=*) add_ldflags $optval
2011     ;;
2012     --extra-libs=*) add_extralibs $optval
2013     ;;
2014     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2015     ;;
2016     --enable-debug=*) debuglevel="$optval"
2017     ;;
2018     --disable-everything)
2019     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2020     ;;
2021     --enable-*=*|--disable-*=*)
2022     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2023     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2024     eval list=\$$(toupper $thing)_LIST
2025     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2026     $action $(filter "$name" $list)
2027     ;;
2028     --enable-?*|--disable-?*)
2029     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2030     if is_in $option $COMPONENT_LIST; then
2031         test $action = disable && action=unset
2032         eval $action \$$(toupper ${option%s})_LIST
2033     elif is_in $option $CMDLINE_SELECT; then
2034         $action $option
2035     else
2036         die_unknown $opt
2037     fi
2038     ;;
2039     --list-*)
2040         NAME="${opt#--list-}"
2041         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2042         NAME=${NAME%s}
2043         eval show_list $NAME \$$(toupper $NAME)_LIST
2044     ;;
2045     --help|-h) show_help
2046     ;;
2047     *)
2048     optname="${opt%%=*}"
2049     optname="${optname#--}"
2050     optname=$(echo "$optname" | sed 's/-/_/g')
2051     if is_in $optname $CMDLINE_SET; then
2052         eval $optname='$optval'
2053     elif is_in $optname $CMDLINE_APPEND; then
2054         append $optname "$optval"
2055     else
2056          die_unknown $opt
2057     fi
2058     ;;
2059     esac
2060 done
2061
2062 disabled logging && logfile=/dev/null
2063
2064 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2065 set >> $logfile
2066
2067 test -n "$cross_prefix" && enable cross_compile
2068
2069 if enabled cross_compile; then
2070     test -n "$arch" && test -n "$target_os" ||
2071         die "Must specify target arch and OS when cross-compiling"
2072 fi
2073
2074 set_default arch target_os postproc_version
2075
2076 # Check if we should build alternative libpostproc version instead of current
2077 if   test "$postproc_version" = $ALT_PP_VER; then
2078   LIBPOSTPROC_VERSION=$ALT_PP_VER
2079   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2080   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2081   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2082 elif test "$postproc_version" != current; then
2083   die "Invalid argument to --postproc-version. See --help output."
2084 fi
2085
2086 ar_default="${cross_prefix}${ar_default}"
2087 cc_default="${cross_prefix}${cc_default}"
2088 cxx_default="${cross_prefix}${cxx_default}"
2089 nm_default="${cross_prefix}${nm_default}"
2090 pkg_config_default="${cross_prefix}${pkg_config_default}"
2091 ranlib="${cross_prefix}${ranlib}"
2092 strip_default="${cross_prefix}${strip_default}"
2093
2094 sysinclude_default="${sysroot}/usr/include"
2095
2096 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2097 enabled cross_compile || host_cc_default=$cc
2098 set_default host_cc
2099
2100 if ! $pkg_config --version >/dev/null 2>&1; then
2101     warn "$pkg_config not found, library detection may fail."
2102     pkg_config=false
2103 fi
2104
2105 exesuf() {
2106     case $1 in
2107         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2108     esac
2109 }
2110
2111 EXESUF=$(exesuf $target_os)
2112 HOSTEXESUF=$(exesuf $host_os)
2113
2114 # set temporary file name
2115 : ${TMPDIR:=$TEMPDIR}
2116 : ${TMPDIR:=$TMP}
2117 : ${TMPDIR:=/tmp}
2118
2119 if ! check_cmd mktemp -u XXXXXX; then
2120     # simple replacement for missing mktemp
2121     # NOT SAFE FOR GENERAL USE
2122     mktemp(){
2123         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2124     }
2125 fi
2126
2127 tmpfile(){
2128     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2129         (set -C; exec > $tmp) 2>/dev/null ||
2130         die "Unable to create temporary file in $TMPDIR."
2131     append TMPFILES $tmp
2132     eval $1=$tmp
2133 }
2134
2135 trap 'rm -f -- $TMPFILES' EXIT
2136
2137 tmpfile TMPASM .asm
2138 tmpfile TMPC   .c
2139 tmpfile TMPCPP .cpp
2140 tmpfile TMPE   $EXESUF
2141 tmpfile TMPH   .h
2142 tmpfile TMPO   .o
2143 tmpfile TMPS   .S
2144 tmpfile TMPSH  .sh
2145 tmpfile TMPV   .ver
2146
2147 unset -f mktemp
2148
2149 chmod +x $TMPE
2150
2151 # make sure we can execute files in $TMPDIR
2152 cat > $TMPSH 2>> $logfile <<EOF
2153 #! /bin/sh
2154 EOF
2155 chmod +x $TMPSH >> $logfile 2>&1
2156 if ! $TMPSH >> $logfile 2>&1; then
2157     cat <<EOF
2158 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2159 variable to another directory and make sure that it is not mounted noexec.
2160 EOF
2161     die "Sanity test failed."
2162 fi
2163
2164 filter_asflags=echo
2165 filter_cflags=echo
2166 filter_cppflags=echo
2167
2168 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2169     cc_type=llvm_gcc
2170     cc_version=__VERSION__
2171     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2172     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2173     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2174     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2175     speed_cflags='-O3'
2176     size_cflags='-Os'
2177 elif $cc -v 2>&1 | grep -qi ^gcc; then
2178     cc_type=gcc
2179     cc_version=__VERSION__
2180     gcc_version=$($cc --version | head -n1)
2181     gcc_basever=$($cc -dumpversion)
2182     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2183     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2184     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2185     if ! $cc -dumpversion | grep -q '^2\.'; then
2186         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2187         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2188     fi
2189     speed_cflags='-O3'
2190     size_cflags='-Os'
2191 elif $cc --version 2>/dev/null | grep -q Intel; then
2192     cc_type=icc
2193     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2194     cc_ident=$($cc --version | head -n1)
2195     icc_version=$($cc -dumpversion)
2196     CC_DEPFLAGS='-MMD'
2197     AS_DEPFLAGS='-MMD'
2198     speed_cflags='-O3'
2199     size_cflags='-Os'
2200     noopt_cflags='-O1'
2201 elif $cc -v 2>&1 | grep -q xlc; then
2202     cc_type=xlc
2203     cc_version="AV_STRINGIFY(__IBMC__)"
2204     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2205     speed_cflags='-O5'
2206     size_cflags='-O5 -qcompact'
2207 elif $cc -V 2>/dev/null | grep -q Compaq; then
2208     cc_type=ccc
2209     cc_version="AV_STRINGIFY(__DECC_VER)"
2210     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2211     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2212     debuglevel=3
2213     add_ldflags -Wl,-z,now # calls to libots crash without this
2214     speed_cflags='-fast'
2215     size_cflags='-O1'
2216 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2217     test -d "$sysroot" || die "No valid sysroot specified."
2218     cc_type=armcc
2219     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2220     cc_ident=$($cc --vsn | head -n1)
2221     armcc_conf="$PWD/armcc.conf"
2222     $cc --arm_linux_configure                 \
2223         --arm_linux_config_file="$armcc_conf" \
2224         --configure_sysroot="$sysroot"        \
2225         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2226         die "Error creating armcc configuration file."
2227     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2228     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2229     as_default="${cross_prefix}gcc"
2230     CC_DEPFLAGS='-MMD'
2231     AS_DEPFLAGS='-MMD'
2232     speed_cflags='-O3'
2233     size_cflags='-Os'
2234     filter_asflags="filter_out -W${armcc_opt}*"
2235 elif $cc -version 2>/dev/null | grep -q TMS470; then
2236     cc_type=tms470
2237     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2238     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2239     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2240     CC_O='-fr=$(@D)'
2241     as_default="${cross_prefix}gcc"
2242     ld_default="${cross_prefix}gcc"
2243     TMPO=$(basename $TMPC .c).o
2244     append TMPFILES $TMPO
2245     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2246     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2247     AS_DEPFLAGS='-MMD'
2248     speed_cflags='-O3 -mf=5'
2249     size_cflags='-O3 -mf=2'
2250     filter_cflags=tms470_flags
2251     tms470_flags(){
2252         for flag; do
2253             case $flag in
2254                 -march=*|-mcpu=*)
2255                     case "${flag#*=}" in
2256                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2257                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2258                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2259                         armv6*|arm11*)          echo -mv=6   ;;
2260                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2261                                                 echo -mv=5e  ;;
2262                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2263                     esac
2264                     ;;
2265                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2266                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2267                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2268                 -msoft-float)   echo --float_support=vfplib       ;;
2269                 -O[0-3]|-mf=*)  echo $flag                        ;;
2270                 -g)             echo -g -mn                       ;;
2271                 -pds=*)         echo $flag                        ;;
2272             esac
2273         done
2274     }
2275 elif $cc -v 2>&1 | grep -q clang; then
2276     cc_type=clang
2277     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2278         cc_version=__clang_version__ || cc_version=__VERSION__
2279     cc_ident=$($cc --version | head -n1)
2280     CC_DEPFLAGS='-MMD'
2281     AS_DEPFLAGS='-MMD'
2282     speed_cflags='-O3'
2283     size_cflags='-Os'
2284 elif $cc -V 2>&1 | grep -q Sun; then
2285     cc_type=suncc
2286     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2287     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2288     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2289     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2290     add_ldflags -xc99
2291     speed_cflags='-O5'
2292     size_cflags='-O5 -xspace'
2293     filter_cflags=suncc_flags
2294     suncc_flags(){
2295         for flag; do
2296             case $flag in
2297                 -march=*|-mcpu=*)
2298                     case "${flag#*=}" in
2299                         native)                   echo -xtarget=native       ;;
2300                         v9|niagara)               echo -xarch=sparc          ;;
2301                         ultrasparc)               echo -xarch=sparcvis       ;;
2302                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2303                         i586|pentium)             echo -xchip=pentium        ;;
2304                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2305                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2306                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2307                         pentium4*)          echo -xtarget=pentium4           ;;
2308                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2309                         *-sse3)             echo -xarch=sse3                 ;;
2310                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2311                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2312                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2313                         k8|opteron|athlon64|athlon-fx)
2314                                                   echo -xarch=sse2a          ;;
2315                         athlon*)                  echo -xarch=pentium_proa   ;;
2316                     esac
2317                     ;;
2318                 -std=c99)             echo -xc99              ;;
2319                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2320                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2321                 -W*,*)                echo $flag              ;;
2322                 -f*-*|-W*)                                    ;;
2323                 *)                    echo $flag              ;;
2324             esac
2325         done
2326     }
2327 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2328     cc_type=pathscale
2329     cc_version=__PATHSCALE__
2330     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2331     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2332     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2333     speed_cflags='-O2'
2334     size_cflags='-Os'
2335     filter_cflags='filter_out -Wdisabled-optimization'
2336 elif $cc -v 2>&1 | grep -q Open64; then
2337     cc_type=open64
2338     cc_version=__OPEN64__
2339     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2340     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2341     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2342     speed_cflags='-O2'
2343     size_cflags='-Os'
2344     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2345 fi
2346
2347 test -n "$cc_type" && enable $cc_type ||
2348     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2349
2350 : ${as_default:=$cc}
2351 : ${dep_cc_default:=$cc}
2352 : ${ld_default:=$cc}
2353 set_default ar as dep_cc ld
2354
2355 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2356 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2357 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2358
2359 add_cflags $extra_cflags
2360 add_cxxflags $extra_cxxflags
2361 add_asflags $extra_cflags
2362
2363 if test -n "$sysroot"; then
2364     case "$cc_type" in
2365         gcc|llvm_gcc|clang)
2366             add_cppflags --sysroot="$sysroot"
2367             add_ldflags --sysroot="$sysroot"
2368         ;;
2369         tms470)
2370             add_cppflags -I"$sysinclude"
2371             add_ldflags  --sysroot="$sysroot"
2372         ;;
2373     esac
2374 fi
2375
2376 if test "$cpu" = host; then
2377     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2378
2379     case "$cc_type" in
2380         gcc|llvm_gcc)
2381             check_native(){
2382                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2383                 sed -n "/cc1.*$1=/{
2384                             s/.*$1=\\([^ ]*\\).*/\\1/
2385                             p
2386                             q
2387                         }" $TMPE
2388             }
2389             cpu=$(check_native -march || check_native -mcpu)
2390         ;;
2391     esac
2392
2393     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2394 fi
2395
2396 # Deal with common $arch aliases
2397 case "$arch" in
2398     arm*|iPad*)
2399         arch="arm"
2400     ;;
2401     mips|mipsel|IP*)
2402         arch="mips"
2403     ;;
2404     mips64*)
2405         arch="mips"
2406         subarch="mips64"
2407     ;;
2408     parisc|hppa)
2409         arch="parisc"
2410     ;;
2411     parisc64|hppa64)
2412         arch="parisc"
2413         subarch="parisc64"
2414     ;;
2415     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2416         arch="ppc"
2417     ;;
2418     s390|s390x)
2419         arch="s390"
2420     ;;
2421     sh4|sh)
2422         arch="sh4"
2423     ;;
2424     sun4u|sparc64)
2425         arch="sparc"
2426         subarch="sparc64"
2427     ;;
2428     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2429         arch="x86"
2430     ;;
2431 esac
2432
2433 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2434 enable $arch
2435
2436 # Add processor-specific flags
2437 if test "$cpu" = generic; then
2438     : do nothing
2439 elif enabled ppc; then
2440
2441     case $(tolower $cpu) in
2442         601|ppc601|powerpc601)
2443             cpuflags="-mcpu=601"
2444             disable altivec
2445         ;;
2446         603*|ppc603*|powerpc603*)
2447             cpuflags="-mcpu=603"
2448             disable altivec
2449         ;;
2450         604*|ppc604*|powerpc604*)
2451             cpuflags="-mcpu=604"
2452             disable altivec
2453         ;;
2454         g3|75*|ppc75*|powerpc75*)
2455             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2456             disable altivec
2457         ;;
2458         g4|745*|ppc745*|powerpc745*)
2459             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2460         ;;
2461         74*|ppc74*|powerpc74*)
2462             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2463         ;;
2464         g5|970|ppc970|powerpc970|power4*)
2465             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2466         ;;
2467         cell)
2468             cpuflags="-mcpu=cell"
2469             enable ldbrx
2470         ;;
2471         e500v2)
2472             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2473             disable altivec
2474         ;;
2475         e500)
2476             cpuflags="-mcpu=8540 -mhard-float"
2477             disable altivec
2478         ;;
2479     esac
2480
2481 elif enabled x86; then
2482
2483     case $cpu in
2484         i[345]86|pentium)
2485             cpuflags="-march=$cpu"
2486             disable mmx
2487         ;;
2488         # targets that do NOT support conditional mov (cmov)
2489         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2490             cpuflags="-march=$cpu"
2491             disable cmov
2492         ;;
2493         # targets that do support conditional mov (cmov)
2494         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2495             cpuflags="-march=$cpu"
2496             enable cmov
2497             enable fast_cmov
2498         ;;
2499         # targets that do support conditional mov but on which it's slow
2500         pentium4|pentium4m|prescott|nocona)
2501             cpuflags="-march=$cpu"
2502             enable cmov
2503             disable fast_cmov
2504         ;;
2505     esac
2506
2507 elif enabled sparc; then
2508
2509     case $cpu in
2510         niagara)
2511             cpuflags="-mcpu=$cpu"
2512             disable vis
2513         ;;
2514         sparc64)
2515             cpuflags="-mcpu=v9"
2516         ;;
2517     esac
2518
2519 elif enabled arm; then
2520
2521     case $cpu in
2522         armv*)
2523             cpuflags="-march=$cpu"
2524             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2525         ;;
2526         *)
2527             cpuflags="-mcpu=$cpu"
2528             case $cpu in
2529                 cortex-a*)                               subarch=armv7a  ;;
2530                 cortex-r*)                               subarch=armv7r  ;;
2531                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2532                 arm11*)                                  subarch=armv6   ;;
2533                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2534                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2535             esac
2536         ;;
2537     esac
2538
2539 elif enabled alpha; then
2540
2541     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2542
2543 elif enabled bfin; then
2544
2545     cpuflags="-mcpu=$cpu"
2546
2547 elif enabled mips; then
2548
2549     cpuflags="-march=$cpu"
2550
2551 elif enabled avr32; then
2552
2553     case $cpu in
2554         ap7[02]0[0-2])
2555             subarch="avr32_ap"
2556             cpuflags="-mpart=$cpu"
2557         ;;
2558         ap)
2559             subarch="avr32_ap"
2560             cpuflags="-march=$cpu"
2561         ;;
2562         uc3[ab]*)
2563             subarch="avr32_uc"
2564             cpuflags="-mcpu=$cpu"
2565         ;;
2566         uc)
2567             subarch="avr32_uc"
2568             cpuflags="-march=$cpu"
2569         ;;
2570     esac
2571
2572 fi
2573
2574 add_cflags $cpuflags
2575 add_asflags $cpuflags
2576
2577 # compiler sanity check
2578 check_exec <<EOF
2579 int main(void){ return 0; }
2580 EOF
2581 if test "$?" != 0; then
2582     echo "$cc is unable to create an executable file."
2583     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2584         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2585         echo "Only do this if you know what cross compiling means."
2586     fi
2587     die "C compiler test failed."
2588 fi
2589
2590 add_cppflags -D_ISOC99_SOURCE
2591 add_cxxflags -D__STDC_CONSTANT_MACROS
2592 check_cflags -std=c99
2593 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2594 #include <stdlib.h>
2595 EOF
2596 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2597 #include <stdlib.h>
2598 EOF
2599
2600 check_host_cflags -std=c99
2601 check_host_cflags -Wall
2602
2603 case "$arch" in
2604     alpha|ia64|mips|parisc|sparc)
2605         spic=$shared
2606     ;;
2607     x86)
2608         subarch="x86_32"
2609         check_cc <<EOF && subarch="x86_64"
2610         int test[(int)sizeof(char*) - 7];
2611 EOF
2612         if test "$subarch" = "x86_64"; then
2613             spic=$shared
2614         fi
2615     ;;
2616     ppc)
2617         check_cc <<EOF && subarch="ppc64"
2618         int test[(int)sizeof(char*) - 7];
2619 EOF
2620     ;;
2621 esac
2622
2623 enable $subarch
2624 enabled spic && enable pic
2625
2626 # OS specific
2627 case $target_os in
2628     haiku)
2629         prefix_default="/boot/common"
2630         network_extralibs="-lnetwork"
2631         host_libs=
2632         ;;
2633     sunos)
2634         FFSERVERLDFLAGS=""
2635         SHFLAGS='-shared -Wl,-h,$$(@F)'
2636         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2637         network_extralibs="-lsocket -lnsl"
2638         add_cppflags -D__EXTENSIONS__
2639         # When using suncc to build, the Solaris linker will mark
2640         # an executable with each instruction set encountered by
2641         # the Solaris assembler.  As our libraries contain their own
2642         # guards for processor-specific code, instead suppress
2643         # generation of the HWCAPS ELF section on Solaris x86 only.
2644         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2645         nm_opts='-P -g'
2646         ;;
2647     netbsd)
2648         disable symver
2649         oss_indev_extralibs="-lossaudio"
2650         oss_outdev_extralibs="-lossaudio"
2651         ;;
2652     openbsd)
2653         enable malloc_aligned
2654         # On OpenBSD 4.5. the compiler does not use PIC unless
2655         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2656         # however the generated executable will not do anything
2657         # (simply quits with exit-code 1, no crash, no output).
2658         # Thus explicitly enable PIC here.
2659         enable pic
2660         disable symver
2661         SHFLAGS='-shared'
2662         oss_indev_extralibs="-lossaudio"
2663         oss_outdev_extralibs="-lossaudio"
2664         ;;
2665     dragonfly)
2666         enable malloc_aligned
2667         disable symver
2668         ;;
2669     freebsd)
2670         enable malloc_aligned
2671         ;;
2672     bsd/os)
2673         add_extralibs -lpoll -lgnugetopt
2674         strip="strip -d"
2675         ;;
2676     darwin)
2677         enable malloc_aligned
2678         gas="gas-preprocessor.pl $cc"
2679         enabled ppc && add_asflags -force_cpusubtype_ALL
2680         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2681         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2682         strip="${strip} -x"
2683         add_ldflags -Wl,-dynamic,-search_paths_first
2684         SLIBSUF=".dylib"
2685         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2686         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2687         FFSERVERLDFLAGS=-Wl,-bind_at_load
2688         objformat="macho"
2689         enabled x86_64 && objformat="macho64"
2690         enabled_any pic shared ||
2691             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2692         ;;
2693     mingw32*)
2694         if test $target_os = "mingw32ce"; then
2695             disable network
2696         else
2697             target_os=mingw32
2698         fi
2699         LIBTARGET=i386
2700         if enabled x86_64; then
2701             enable malloc_aligned
2702             LIBTARGET=x64
2703         elif enabled arm; then
2704             LIBTARGET=arm-wince
2705         fi
2706         shlibdir_default="$bindir_default"
2707         SLIBPREF=""
2708         SLIBSUF=".dll"
2709         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2710         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2711         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2712         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2713         SLIB_INSTALL_LINKS=
2714         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2715         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2716         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'
2717         objformat="win32"
2718         enable dos_paths
2719         check_cflags -fno-common
2720         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2721                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2722                 die "ERROR: MinGW runtime version must be >= 3.15."
2723         add_cppflags -U__STRICT_ANSI__
2724         ;;
2725     cygwin*)
2726         target_os=cygwin
2727         shlibdir_default="$bindir_default"
2728         SLIBPREF="cyg"
2729         SLIBSUF=".dll"
2730         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2731         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2732         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2733         objformat="win32"
2734         enable dos_paths
2735         check_cflags -fno-common
2736         add_cppflags -U__STRICT_ANSI__
2737         ;;
2738     *-dos|freedos|opendos)
2739         network_extralibs="-lsocket"
2740         objformat="coff"
2741         enable dos_paths
2742         add_cppflags -U__STRICT_ANSI__
2743         ;;
2744     linux)
2745         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2746         enable dv1394
2747         ;;
2748     irix*)
2749         target_os=irix
2750         ranlib="echo ignoring ranlib"
2751         ;;
2752     os/2*)
2753         strip="lxlite -CS"
2754         ln_s="cp -f"
2755         objformat="aout"
2756         add_cppflags -D_GNU_SOURCE
2757         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2758         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2759         FFSERVERLDFLAGS=""
2760         LIBSUF="_s.a"
2761         SLIBPREF=""
2762         SLIBSUF=".dll"
2763         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2764         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2765         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2766           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2767           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2768           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2769           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2770           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2771         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2772           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2773         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2774         enable dos_paths
2775         enable_weak os2threads
2776         ;;
2777     gnu/kfreebsd)
2778         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2779         ;;
2780     gnu)
2781         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2782         ;;
2783     qnx)
2784         add_cppflags -D_QNX_SOURCE
2785         network_extralibs="-lsocket"
2786         ;;
2787     symbian)
2788         SLIBSUF=".dll"
2789         enable dos_paths
2790         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2791         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2792         add_ldflags -Wl,--target1-abs,--no-undefined \
2793                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2794                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2795         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2796                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2797                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2798         ;;
2799     none)
2800         ;;
2801     *)
2802         die "Unknown OS '$target_os'."
2803         ;;
2804 esac
2805
2806 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2807
2808 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2809
2810 set_default $PATHS_LIST
2811
2812 # we need to build at least one lib type
2813 if ! enabled_any static shared; then
2814     cat <<EOF
2815 At least one library type must be built.
2816 Specify --enable-static to build the static libraries or --enable-shared to
2817 build the shared libraries as well. To only build the shared libraries specify
2818 --disable-static in addition to --enable-shared.
2819 EOF
2820     exit 1;
2821 fi
2822
2823 die_license_disabled() {
2824     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2825 }
2826
2827 die_license_disabled gpl libcdio
2828 die_license_disabled gpl libutvideo
2829 die_license_disabled gpl libx264
2830 die_license_disabled gpl libxavs
2831 die_license_disabled gpl libxvid
2832 die_license_disabled gpl x11grab
2833
2834 die_license_disabled nonfree libaacplus
2835 die_license_disabled nonfree libfaac
2836 die_license_disabled nonfree openssl
2837
2838 die_license_disabled version3 libopencore_amrnb
2839 die_license_disabled version3 libopencore_amrwb
2840 die_license_disabled version3 libvo_aacenc
2841 die_license_disabled version3 libvo_amrwbenc
2842
2843 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2844
2845 disabled optimizations || check_cflags -fomit-frame-pointer
2846
2847 enable_pic() {
2848     enable pic
2849     add_cppflags -DPIC
2850     add_cflags   -fPIC
2851     add_asflags  -fPIC
2852 }
2853
2854 enabled pic && enable_pic
2855
2856 check_cc <<EOF || die "Symbol mangling check failed."
2857 int ff_extern;
2858 EOF
2859 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2860 extern_prefix=${sym%%ff_extern*}
2861
2862 check_cc <<EOF && enable inline_asm
2863 void foo(void) { __asm__ volatile ("" ::); }
2864 EOF
2865
2866 _restrict=
2867 for restrict_keyword in restrict __restrict__ __restrict; do
2868     check_cc <<EOF && _restrict=$restrict_keyword && break
2869 void foo(char * $restrict_keyword p);
2870 EOF
2871 done
2872
2873 check_cc <<EOF && enable attribute_packed
2874 struct { int x; } __attribute__((packed)) x;
2875 EOF
2876
2877 check_cc <<EOF && enable attribute_may_alias
2878 union { int x; } __attribute__((may_alias)) x;
2879 EOF
2880
2881 check_cc <<EOF || die "endian test failed"
2882 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2883 EOF
2884 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2885
2886 if enabled alpha; then
2887
2888     check_cflags -mieee
2889
2890 elif enabled arm; then
2891
2892     enabled thumb && check_cflags -mthumb || check_cflags -marm
2893     nogas=die
2894
2895     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2896         enable vfp_args
2897     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2898         case "${cross_prefix:-$cc}" in
2899             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2900             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2901 __asm__ (".eabi_attribute 28, 1");
2902 int main(void) { return 0; }
2903 EOF
2904         esac
2905         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2906     fi
2907
2908     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2909     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2910     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2911     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2912     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2913     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2914
2915     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2916
2917     enabled_all armv6t2 shared !pic && enable_pic
2918
2919 elif enabled mips; then
2920
2921     check_asm loongson '"dmult.g $1, $2, $3"'
2922     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2923
2924 elif enabled ppc; then
2925
2926     enable local_aligned_8 local_aligned_16
2927
2928     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2929     check_asm ibm_asm   '"add 0, 0, 0"'
2930     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2931     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2932
2933     # AltiVec flags: The FSF version of GCC differs from the Apple version
2934     if enabled altivec; then
2935         nogas=warn
2936         check_cflags -maltivec -mabi=altivec &&
2937         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2938         check_cflags -faltivec
2939
2940         # check if our compiler supports Motorola AltiVec C API
2941         check_cc <<EOF || disable altivec
2942 $inc_altivec_h
2943 int main(void) {
2944     vector signed int v1, v2, v3;
2945     v1 = vec_add(v2,v3);
2946     return 0;
2947 }
2948 EOF
2949
2950         # check if our compiler supports braces for vector declarations
2951         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2952 $inc_altivec_h
2953 int main (void) { (vector int) {1}; return 0; }
2954 EOF
2955     fi
2956
2957 elif enabled sparc; then
2958
2959     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2960         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2961
2962 elif enabled x86; then
2963
2964     enable local_aligned_8 local_aligned_16
2965
2966     # check whether EBP is available on x86
2967     # As 'i' is stored on the stack, this program will crash
2968     # if the base pointer is used to access it because the
2969     # base pointer is cleared in the inline assembly code.
2970     check_exec_crash <<EOF && enable ebp_available
2971     volatile int i=0;
2972     __asm__ volatile (
2973         "xorl %%ebp, %%ebp"
2974     ::: "%ebp");
2975     return i;
2976 EOF
2977
2978     # check whether EBX is available on x86
2979     check_asm ebx_available '""::"b"(0)' &&
2980         check_asm ebx_available '"":::"%ebx"'
2981
2982     # check whether xmm clobbers are supported
2983     check_asm xmm_clobbers '"":::"%xmm0"'
2984
2985     # check whether binutils is new enough to compile SSSE3/MMX2
2986     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2987     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2988
2989     if ! disabled_any asm mmx yasm; then
2990         if check_cmd $yasmexe --version; then
2991             enabled x86_64 && yasm_extra="-m amd64"
2992             yasm_debug="-g dwarf2"
2993         elif check_cmd nasm -v; then
2994             yasmexe=nasm
2995             yasm_debug="-g -F dwarf"
2996             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2997         fi
2998
2999         YASMFLAGS="-f $objformat $yasm_extra"
3000         enabled pic               && append YASMFLAGS "-DPIC"
3001         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3002         case "$objformat" in
3003             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3004         esac
3005
3006         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3007             die "yasm not found, use --disable-yasm for a crippled build"
3008         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3009     fi
3010
3011     case "$cpu" in
3012         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3013             disable fast_clz
3014         ;;
3015     esac
3016
3017 fi
3018
3019 if enabled asm; then
3020     as=${gas:=$as}
3021     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3022         $nogas "GNU assembler not found, install gas-preprocessor"
3023 fi
3024
3025 check_ldflags -Wl,--as-needed
3026
3027 if check_func dlopen; then
3028     ldl=
3029 elif check_func dlopen -ldl; then
3030     ldl=-ldl
3031 fi
3032
3033 if enabled network; then
3034     check_type "sys/types.h sys/socket.h" socklen_t
3035     check_type netdb.h "struct addrinfo"
3036     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3037     check_type netinet/in.h "struct sockaddr_in6"
3038     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3039     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3040     # Prefer arpa/inet.h over winsock2
3041     if check_header arpa/inet.h ; then
3042         check_func closesocket
3043     elif check_header winsock2.h ; then
3044         check_func_headers winsock2.h closesocket -lws2 && \
3045             network_extralibs="-lws2" || \
3046         { check_func_headers winsock2.h closesocket -lws2_32 && \
3047             network_extralibs="-lws2_32"; }
3048         check_type ws2tcpip.h socklen_t
3049         check_type ws2tcpip.h "struct addrinfo"
3050         check_type ws2tcpip.h "struct ipv6_mreq"
3051         check_type ws2tcpip.h "struct sockaddr_in6"
3052         check_type ws2tcpip.h "struct sockaddr_storage"
3053         check_struct winsock2.h "struct sockaddr" sa_len
3054     else
3055         disable network
3056     fi
3057 fi
3058
3059 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3060 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3061
3062 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3063 check_func  fcntl
3064 check_func  fork
3065 check_func  getaddrinfo $network_extralibs
3066 check_func  gethrtime
3067 check_func  getrusage
3068 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3069 check_func  inet_aton $network_extralibs
3070 check_func  isatty
3071 check_func  localtime_r
3072 check_func  ${malloc_prefix}memalign            && enable memalign
3073 check_func  mkstemp
3074 check_func  mmap
3075 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3076 check_func  setrlimit
3077 check_func  strerror_r
3078 check_func  strptime
3079 check_func  sched_getaffinity
3080 check_func  sysconf
3081 check_func  sysctl
3082 check_func_headers conio.h kbhit
3083 check_func_headers windows.h PeekNamedPipe
3084 check_func_headers io.h setmode
3085 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3086 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3087 check_func_headers windows.h GetProcessAffinityMask
3088 check_func_headers windows.h GetProcessTimes
3089 check_func_headers windows.h MapViewOfFile
3090 check_func_headers windows.h VirtualAlloc
3091 check_func_headers glob.h glob
3092
3093 check_header dlfcn.h
3094 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3095 check_header libcrystalhd/libcrystalhd_if.h
3096 check_header malloc.h
3097 check_header poll.h
3098 check_header sys/mman.h
3099 check_header sys/param.h
3100 check_header sys/resource.h
3101 check_header sys/select.h
3102 check_header termios.h
3103 check_header vdpau/vdpau.h
3104 check_header vdpau/vdpau_x11.h
3105 check_header X11/extensions/XvMClib.h
3106 check_header asm/types.h
3107
3108 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3109 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3110
3111 # check for VDA header
3112 if ! disabled vda; then
3113     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3114         enable vda
3115         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3116     fi
3117 fi
3118
3119 if ! disabled w32threads && ! enabled pthreads; then
3120     check_func _beginthreadex && enable w32threads
3121 fi
3122
3123 # check for some common methods of building with pthread support
3124 # do this before the optional library checks as some of them require pthreads
3125 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3126     enable pthreads
3127     if check_func pthread_create; then
3128         :
3129     elif check_func pthread_create -pthread; then
3130         add_cflags -pthread
3131         add_extralibs -pthread
3132     elif check_func pthread_create -pthreads; then
3133         add_cflags -pthreads
3134         add_extralibs -pthreads
3135     elif check_func pthread_create -lpthreadGC2; then
3136         add_extralibs -lpthreadGC2
3137     elif ! check_lib pthread.h pthread_create -lpthread; then
3138         disable pthreads
3139     fi
3140 fi
3141
3142 for thread in $THREADS_LIST; do
3143     if enabled $thread; then
3144         test -n "$thread_type" &&
3145             die "ERROR: Only one thread type must be selected." ||
3146             thread_type="$thread"
3147     fi
3148 done
3149
3150 check_lib math.h sin -lm && LIBM="-lm"
3151 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3152 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3153
3154 check_mathfunc cbrtf
3155 check_mathfunc exp2
3156 check_mathfunc exp2f
3157 check_mathfunc llrint
3158 check_mathfunc llrintf
3159 check_mathfunc log2
3160 check_mathfunc log2f
3161 check_mathfunc lrint
3162 check_mathfunc lrintf
3163 check_mathfunc round
3164 check_mathfunc roundf
3165 check_mathfunc trunc
3166 check_mathfunc truncf
3167
3168 # these are off by default, so fail if requested and not available
3169 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3170 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3171 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3172 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3173 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3174 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3175 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3176 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3177                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3178                         die "ERROR: libcelt version must be >= 0.11.0."; }
3179 enabled libdirac   && require_pkg_config dirac                          \
3180     "libdirac_decoder/dirac_parser.h"  \
3181     "dirac_decoder_init"
3182 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3183 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3184 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3185 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3186 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3187 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3188 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3189 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3190 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3191 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3192 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3193 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3194 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3195 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3196 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3197     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3198     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3199 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3200 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3201 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3202 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3203 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3204 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3205 enabled libvpx     && {
3206     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3207                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3208     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3209                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3210 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3211                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3212                         die "ERROR: libx264 version must be >= 0.118."; }
3213 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3214 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3215 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3216                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3217                         die "ERROR: openal not found"; } &&
3218                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3219                         die "ERROR: openal version must be 1.1 or compatible"; }
3220 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3221                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3222                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3223                         die "ERROR: openssl not found"; }
3224
3225 # libdc1394 check
3226 if enabled libdc1394; then
3227     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3228         enable libdc1394_2; } ||
3229     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3230         enable libdc1394_1; } ||
3231     die "ERROR: No version of libdc1394 found "
3232 fi
3233
3234 SDL_CONFIG="${cross_prefix}sdl-config"
3235 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3236     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3237     enable sdl &&
3238     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3239 else
3240   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3241     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3242     sdl_libs=$("${SDL_CONFIG}" --libs)
3243     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3244     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3245     enable sdl &&
3246     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3247   fi
3248 fi
3249 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3250
3251 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3252 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3253
3254 check_header linux/fb.h
3255 check_header linux/videodev.h
3256 check_header linux/videodev2.h
3257 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3258
3259 check_header sys/videoio.h
3260
3261 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3262 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3263 # w32api 3.12 had it defined wrong
3264 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3265
3266 check_type "dshow.h" IBaseFilter
3267
3268 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3269 { check_header dev/bktr/ioctl_meteor.h &&
3270   check_header dev/bktr/ioctl_bt848.h; } ||
3271 { check_header machine/ioctl_meteor.h &&
3272   check_header machine/ioctl_bt848.h; } ||
3273 { check_header dev/video/meteor/ioctl_meteor.h &&
3274   check_header dev/video/bktr/ioctl_bt848.h; } ||
3275 check_header dev/ic/bt8xx.h
3276
3277 check_header sndio.h
3278 if check_struct sys/soundcard.h audio_buf_info bytes; then
3279     enable_safe sys/soundcard.h
3280 else
3281     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3282     #include <sys/soundcard.h>
3283     audio_buf_info abc;
3284 EOF
3285 fi
3286 check_header soundcard.h
3287
3288 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3289
3290 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3291
3292 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3293
3294 enabled libcdio &&
3295     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3296
3297 enabled x11grab                                           &&
3298 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3299 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3300 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3301
3302 if ! disabled vaapi; then
3303     check_lib va/va.h vaInitialize -lva && {
3304         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3305         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3306     } || disable vaapi
3307 fi
3308
3309 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3310 check_cpp_condition \
3311     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3312     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3313       disable vdpau; }
3314 fi
3315
3316 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3317 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3318 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3319
3320 # add some useful compiler flags if supported
3321 check_cflags -Wdeclaration-after-statement
3322 check_cflags -Wall
3323 check_cflags -Wno-parentheses
3324 check_cflags -Wno-switch
3325 check_cflags -Wno-format-zero-length
3326 check_cflags -Wdisabled-optimization
3327 check_cflags -Wpointer-arith
3328 check_cflags -Wredundant-decls
3329 check_cflags -Wno-pointer-sign
3330 check_cflags -Wcast-qual
3331 check_cflags -Wwrite-strings
3332 check_cflags -Wtype-limits
3333 check_cflags -Wundef
3334 check_cflags -Wmissing-prototypes
3335 check_cflags -Wno-pointer-to-int-cast
3336 check_cflags -Wstrict-prototypes
3337 enabled extra_warnings && check_cflags -Winline
3338
3339 # add some linker flags
3340 check_ldflags -Wl,--warn-common
3341 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3342 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3343
3344 enabled xmm_clobber_test &&                             \
3345     check_ldflags -Wl,--wrap,avcodec_open2              \
3346                   -Wl,--wrap,avcodec_decode_audio4      \
3347                   -Wl,--wrap,avcodec_decode_video2      \
3348                   -Wl,--wrap,avcodec_decode_subtitle2   \
3349                   -Wl,--wrap,avcodec_encode_audio2      \
3350                   -Wl,--wrap,avcodec_encode_video       \
3351                   -Wl,--wrap,avcodec_encode_subtitle    \
3352                   -Wl,--wrap,sws_scale ||               \
3353     disable xmm_clobber_test
3354
3355 echo "X{};" > $TMPV
3356 if test_ldflags -Wl,--version-script,$TMPV; then
3357     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3358     check_cc <<EOF && enable symver_asm_label
3359 void ff_foo(void) __asm__ ("av_foo@VERSION");
3360 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3361 EOF
3362     check_cc <<EOF && enable symver_gnu_asm
3363 __asm__(".symver ff_foo,av_foo@VERSION");
3364 void ff_foo(void) {}
3365 EOF
3366 fi
3367
3368 if [ -n "$optflags" ]; then
3369     add_cflags $optflags
3370 elif enabled small; then
3371     add_cflags $size_cflags
3372 elif enabled optimizations; then
3373     add_cflags $speed_cflags
3374 else
3375     add_cflags $noopt_cflags
3376 fi
3377 check_cflags -fno-math-errno
3378 check_cflags -fno-signed-zeros
3379 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3380 int x;
3381 EOF
3382
3383
3384 if enabled icc; then
3385     # Just warnings, no remarks
3386     check_cflags -w1
3387     # -wd: Disable following warnings
3388     # 144, 167, 556: -Wno-pointer-sign
3389     # 1292: attribute "foo" ignored
3390     # 10006: ignoring unknown option -fno-signed-zeros
3391     # 10148: ignoring unknown option -Wno-parentheses
3392     # 10156: ignoring option '-W'; no argument required
3393     check_cflags -wd144,167,556,1292,10006,10148,10156
3394     # 11030: Warning unknown option --as-needed
3395     # 10156: ignoring option '-export'; no argument required
3396     check_ldflags -wd10156,11030
3397     # Allow to compile with optimizations
3398     check_ldflags -march=$cpu
3399     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3400     enable ebp_available
3401     if enabled x86_32; then
3402         test ${icc_version%%.*} -ge 11 && \
3403             check_cflags -falign-stack=maintain-16-byte || \
3404             disable aligned_stack
3405     fi
3406 elif enabled ccc; then
3407     # disable some annoying warnings
3408     add_cflags -msg_disable cvtu32to64
3409     add_cflags -msg_disable embedcomment
3410     add_cflags -msg_disable needconstext
3411     add_cflags -msg_disable nomainieee
3412     add_cflags -msg_disable ptrmismatch1
3413     add_cflags -msg_disable unreachcode
3414 elif enabled gcc; then
3415     check_cflags -fno-tree-vectorize
3416     check_cflags -Werror=implicit-function-declaration
3417     check_cflags -Werror=missing-prototypes
3418 elif enabled llvm_gcc; then
3419     check_cflags -mllvm -stack-alignment=16
3420 elif enabled clang; then
3421     check_cflags -mllvm -stack-alignment=16
3422     check_cflags -Qunused-arguments
3423 elif enabled armcc; then
3424     # 2523: use of inline assembler is deprecated
3425     add_cflags -W${armcc_opt},--diag_suppress=2523
3426     add_cflags -W${armcc_opt},--diag_suppress=1207
3427     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3428     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3429     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3430     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3431 elif enabled tms470; then
3432     add_cflags -pds=824 -pds=837
3433 elif enabled pathscale; then
3434     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3435 fi
3436
3437 enabled_any $THREADS_LIST      && enable threads
3438
3439 check_deps $CONFIG_LIST       \
3440            $CONFIG_EXTRA      \
3441            $HAVE_LIST         \
3442            $ALL_COMPONENTS    \
3443            $ALL_TESTS         \
3444
3445 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3446
3447 if test $target_os = "haiku"; then
3448     disable memalign
3449     disable posix_memalign
3450 fi
3451
3452 ! enabled_any memalign posix_memalign malloc_aligned &&
3453     enabled_any $need_memalign && enable memalign_hack
3454
3455 # add_dep lib dep
3456 # -> enable ${lib}_deps_${dep}
3457 # -> add $dep to ${lib}_deps only once
3458 add_dep() {
3459     lib=$1
3460     dep=$2
3461     enabled "${lib}_deps_${dep}" && return 0
3462     enable  "${lib}_deps_${dep}"
3463     prepend "${lib}_deps" $dep
3464 }
3465
3466 # merge deps lib components
3467 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3468 merge_deps() {
3469     lib=$1
3470     shift
3471     for comp in $*; do
3472         enabled $comp || continue
3473         eval "dep=\"\$${comp}_deps\""
3474         for d in $dep; do
3475             add_dep $lib $d
3476         done
3477     done
3478 }
3479
3480 merge_deps libavfilter $FILTER_LIST
3481
3482 echo "install prefix            $prefix"
3483 echo "source path               $source_path"
3484 echo "C compiler                $cc"
3485 echo "ARCH                      $arch ($cpu)"
3486 if test "$build_suffix" != ""; then
3487     echo "build suffix              $build_suffix"
3488 fi
3489 if test "$progs_suffix" != ""; then
3490     echo "progs suffix              $progs_suffix"
3491 fi
3492 if test "$extra_version" != ""; then
3493     echo "version string suffix     $extra_version"
3494 fi
3495 echo "big-endian                ${bigendian-no}"
3496 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3497 if enabled x86; then
3498     echo "${yasmexe}                      ${yasm-no}"
3499     echo "MMX enabled               ${mmx-no}"
3500     echo "MMX2 enabled              ${mmx2-no}"
3501     echo "3DNow! enabled            ${amd3dnow-no}"
3502     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3503     echo "SSE enabled               ${sse-no}"
3504     echo "SSSE3 enabled             ${ssse3-no}"
3505     echo "AVX enabled               ${avx-no}"
3506     echo "CMOV enabled              ${cmov-no}"
3507     echo "CMOV is fast              ${fast_cmov-no}"
3508     echo "EBX available             ${ebx_available-no}"
3509     echo "EBP available             ${ebp_available-no}"
3510 fi
3511 if enabled arm; then
3512     echo "ARMv5TE enabled           ${armv5te-no}"
3513     echo "ARMv6 enabled             ${armv6-no}"
3514     echo "ARMv6T2 enabled           ${armv6t2-no}"
3515     echo "ARM VFP enabled           ${armvfp-no}"
3516     echo "NEON enabled              ${neon-no}"
3517 fi
3518 if enabled mips; then
3519     echo "MMI enabled               ${mmi-no}"
3520 fi
3521 if enabled ppc; then
3522     echo "AltiVec enabled           ${altivec-no}"
3523     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3524     echo "dcbzl available           ${dcbzl-no}"
3525 fi
3526 if enabled sparc; then
3527     echo "VIS enabled               ${vis-no}"
3528 fi
3529 echo "debug symbols             ${debug-no}"
3530 echo "strip symbols             ${stripping-no}"
3531 echo "optimize for size         ${small-no}"
3532 echo "optimizations             ${optimizations-no}"
3533 echo "static                    ${static-no}"
3534 echo "shared                    ${shared-no}"
3535 echo "postprocessing support    ${postproc-no}"
3536 echo "new filter support        ${avfilter-no}"
3537 echo "network support           ${network-no}"
3538 echo "threading support         ${thread_type-no}"
3539 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3540 echo "SDL support               ${sdl-no}"
3541 echo "libdxva2 enabled          ${dxva2-no}"
3542 echo "libva enabled             ${vaapi-no}"
3543 echo "libvdpau enabled          ${vdpau-no}"
3544 echo "AVISynth enabled          ${avisynth-no}"
3545 echo "frei0r enabled            ${frei0r-no}"
3546 echo "gnutls enabled            ${gnutls-no}"
3547 echo "libaacplus enabled        ${libaacplus-no}"
3548 echo "libass enabled            ${libass-no}"
3549 echo "libcdio support           ${libcdio-no}"
3550 echo "libcelt enabled           ${libcelt-no}"
3551 echo "libdc1394 support         ${libdc1394-no}"
3552 echo "libdirac enabled          ${libdirac-no}"
3553 echo "libfaac enabled           ${libfaac-no}"
3554 echo "libgsm enabled            ${libgsm-no}"
3555 echo "libmodplug enabled        ${libmodplug-no}"
3556 echo "libmp3lame enabled        ${libmp3lame-no}"
3557 echo "libnut enabled            ${libnut-no}"
3558 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3559 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3560 echo "libopencv support         ${libopencv-no}"
3561 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3562 echo "libpulse enabled          ${libpulse-no}"
3563 echo "librtmp enabled           ${librtmp-no}"
3564 echo "libschroedinger enabled   ${libschroedinger-no}"
3565 echo "libspeex enabled          ${libspeex-no}"
3566 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3567 echo "libtheora enabled         ${libtheora-no}"
3568 echo "libutvideo enabled        ${libutvideo-no}"
3569 echo "libv4l2 enabled           ${libv4l2-no}"
3570 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3571 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3572 echo "libvorbis enabled         ${libvorbis-no}"
3573 echo "libvpx enabled            ${libvpx-no}"
3574 echo "libx264 enabled           ${libx264-no}"
3575 echo "libxavs enabled           ${libxavs-no}"
3576 echo "libxvid enabled           ${libxvid-no}"
3577 echo "openal enabled            ${openal-no}"
3578 echo "openssl enabled           ${openssl-no}"
3579 echo "zlib enabled              ${zlib-no}"
3580 echo "bzlib enabled             ${bzlib-no}"
3581 echo
3582
3583 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3584     echo "Enabled ${type}s:"
3585     eval list=\$$(toupper $type)_LIST
3586     print_enabled '_*' $list | sort | pr -r -3 -t
3587     echo
3588 done
3589
3590 license="LGPL version 2.1 or later"
3591 if enabled nonfree; then
3592     license="nonfree and unredistributable"
3593 elif enabled gplv3; then
3594     license="GPL version 3 or later"
3595 elif enabled lgplv3; then
3596     license="LGPL version 3 or later"
3597 elif enabled gpl; then
3598     license="GPL version 2 or later"
3599 fi
3600
3601 echo "License: $license"
3602
3603 echo "Creating config.mak and config.h..."
3604
3605 test -e Makefile || $ln_s "$source_path/Makefile" .
3606
3607 enabled stripping || strip="echo skipping strip"
3608
3609 config_files="$TMPH config.mak"
3610
3611 cat > config.mak <<EOF
3612 # Automatically generated by configure - do not modify!
3613 ifndef FFMPEG_CONFIG_MAK
3614 FFMPEG_CONFIG_MAK=1
3615 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3616 prefix=$prefix
3617 LIBDIR=\$(DESTDIR)$libdir
3618 SHLIBDIR=\$(DESTDIR)$shlibdir
3619 INCDIR=\$(DESTDIR)$incdir
3620 BINDIR=\$(DESTDIR)$bindir
3621 DATADIR=\$(DESTDIR)$datadir
3622 MANDIR=\$(DESTDIR)$mandir
3623 SRC_PATH=$source_path
3624 ifndef MAIN_MAKEFILE
3625 SRC_PATH:=\$(SRC_PATH:.%=..%)
3626 endif
3627 CC_IDENT=$cc_ident
3628 ARCH=$arch
3629 CC=$cc
3630 CXX=$cxx
3631 AS=$as
3632 LD=$ld
3633 DEPCC=$dep_cc
3634 YASM=$yasmexe
3635 YASMDEP=$yasmexe
3636 AR=$ar
3637 RANLIB=$ranlib
3638 CP=cp -p
3639 LN_S=$ln_s
3640 STRIP=$strip
3641 CPPFLAGS=$CPPFLAGS
3642 CFLAGS=$CFLAGS
3643 CXXFLAGS=$CXXFLAGS
3644 ASFLAGS=$ASFLAGS
3645 AS_O=$CC_O
3646 CC_O=$CC_O
3647 CXX_O=$CXX_O
3648 LDFLAGS=$LDFLAGS
3649 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3650 SHFLAGS=$SHFLAGS
3651 YASMFLAGS=$YASMFLAGS
3652 BUILDSUF=$build_suffix
3653 PROGSSUF=$progs_suffix
3654 FULLNAME=$FULLNAME
3655 LIBPREF=$LIBPREF
3656 LIBSUF=$LIBSUF
3657 LIBNAME=$LIBNAME
3658 SLIBPREF=$SLIBPREF
3659 SLIBSUF=$SLIBSUF
3660 EXESUF=$EXESUF
3661 EXTRA_VERSION=$extra_version
3662 DEPFLAGS=$DEPFLAGS
3663 CCDEP=$CCDEP
3664 CXXDEP=$CXXDEP
3665 ASDEP=$ASDEP
3666 CC_DEPFLAGS=$CC_DEPFLAGS
3667 AS_DEPFLAGS=$AS_DEPFLAGS
3668 HOSTCC=$host_cc
3669 HOSTCFLAGS=$host_cflags
3670 HOSTEXESUF=$HOSTEXESUF
3671 HOSTLDFLAGS=$host_ldflags
3672 HOSTLIBS=$host_libs
3673 TARGET_EXEC=$target_exec
3674 TARGET_PATH=$target_path
3675 SDL_LIBS=$sdl_libs
3676 SDL_CFLAGS=$sdl_cflags
3677 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3678 EXTRALIBS=$extralibs
3679 INSTALL=$install
3680 LIBTARGET=${LIBTARGET}
3681 SLIBNAME=${SLIBNAME}
3682 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3683 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3684 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3685 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3686 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3687 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3688 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3689 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3690 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3691 NOREDZONE_FLAGS=$noredzone_flags
3692 EOF
3693
3694 get_version(){
3695     name=$1
3696     file=$source_path/$2
3697 # This condition will be removed when we stop supporting old libpostproc versions
3698 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3699     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3700     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3701 fi
3702     lcname=$(tolower $name)
3703     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3704     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3705 }
3706
3707 get_version LIBAVCODEC  libavcodec/version.h
3708 get_version LIBAVDEVICE libavdevice/avdevice.h
3709 get_version LIBAVFILTER libavfilter/version.h
3710 get_version LIBAVFORMAT libavformat/version.h
3711 get_version LIBAVUTIL   libavutil/avutil.h
3712 get_version LIBPOSTPROC libpostproc/postprocess.h
3713 get_version LIBSWRESAMPLE libswresample/swresample.h
3714 get_version LIBSWSCALE  libswscale/swscale.h
3715
3716 cat > $TMPH <<EOF
3717 /* Automatically generated by configure - do not modify! */
3718 #ifndef FFMPEG_CONFIG_H
3719 #define FFMPEG_CONFIG_H
3720 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3721 #define FFMPEG_LICENSE "$(c_escape $license)"
3722 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3723 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3724 #define CC_TYPE "$cc_type"
3725 #define CC_VERSION $cc_version
3726 #define restrict $_restrict
3727 #define EXTERN_PREFIX "${extern_prefix}"
3728 #define EXTERN_ASM ${extern_prefix}
3729 #define SLIBSUF "$SLIBSUF"
3730 EOF
3731
3732 test -n "$assert_level" &&
3733     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3734
3735 test -n "$malloc_prefix" &&
3736     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3737
3738 if enabled small || disabled optimizations; then
3739     echo "#undef  av_always_inline"  >> $TMPH
3740     if enabled small; then
3741         echo "#define av_always_inline inline"  >> $TMPH
3742     else
3743         echo "#define av_always_inline av_unused"  >> $TMPH
3744     fi
3745 fi
3746
3747 if enabled yasm; then
3748     append config_files $TMPASM
3749     printf '' >$TMPASM
3750 fi
3751
3752 print_config ARCH_   "$config_files" $ARCH_LIST
3753 print_config HAVE_   "$config_files" $HAVE_LIST
3754 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3755                                      $CONFIG_EXTRA      \
3756                                      $ALL_COMPONENTS    \
3757
3758 cat >>config.mak <<EOF
3759 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3760 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3761 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3762 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3763 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3764 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3765 EOF
3766
3767 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3768 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3769
3770 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3771 cp_if_changed $TMPH config.h
3772 touch .config
3773
3774 enabled yasm && cp_if_changed $TMPASM config.asm
3775
3776 cat > $TMPH <<EOF
3777 /* Generated by ffconf */
3778 #ifndef AVUTIL_AVCONFIG_H
3779 #define AVUTIL_AVCONFIG_H
3780 EOF
3781
3782 test "$postproc_version" != current && cat >> $TMPH <<EOF
3783 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3784 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3785 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3786 EOF
3787
3788 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3789
3790 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3791
3792 cp_if_changed $TMPH libavutil/avconfig.h
3793
3794 test -n "$WARNINGS" && printf "\n$WARNINGS"
3795
3796 # build pkg-config files
3797
3798 pkgconfig_generate(){
3799 name=$1
3800 shortname=${name#lib}${build_suffix}
3801 comment=$2
3802 version=$3
3803 libs=$4
3804 requires=$5
3805 enabled ${name#lib} || return 0
3806 mkdir -p $name
3807 cat <<EOF > $name/$name.pc
3808 prefix=$prefix
3809 exec_prefix=\${prefix}
3810 libdir=$libdir
3811 includedir=$incdir
3812
3813 Name: $name
3814 Description: $comment
3815 Version: $version
3816 Requires: $(enabled shared || echo $requires)
3817 Requires.private: $(enabled shared && echo $requires)
3818 Conflicts:
3819 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3820 Libs.private: $(enabled shared && echo $libs)
3821 Cflags: -I\${includedir}
3822 EOF
3823 cat <<EOF > $name/$name-uninstalled.pc
3824 prefix=
3825 exec_prefix=
3826 libdir=\${pcfiledir}
3827 includedir=${source_path}
3828
3829 Name: $name
3830 Description: $comment
3831 Version: $version
3832 Requires: $requires
3833 Conflicts:
3834 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3835 Cflags: -I\${includedir}
3836 EOF
3837 }
3838
3839 libavfilter_pc_deps=""
3840 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
3841 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
3842 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
3843 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
3844 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
3845 libavfilter_pc_deps=${libavfilter_pc_deps%, }
3846
3847 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
3848 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
3849
3850 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3851 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3852 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3853 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
3854 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
3855 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3856 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3857 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"