ptx: correct decoding
[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   --enable-avresample      enable libavresample build [no]
116   --disable-pthreads       disable pthreads [auto]
117   --disable-w32threads     disable Win32 threads [auto]
118   --disable-os2threads     disable OS/2 threads [auto]
119   --enable-x11grab         enable X11 grabbing [no]
120   --disable-network        disable network support [no]
121   --disable-dct            disable DCT code
122   --disable-mdct           disable MDCT code
123   --disable-rdft           disable RDFT code
124   --disable-fft            disable FFT code
125   --enable-dxva2           enable DXVA2 code
126   --enable-vaapi           enable VAAPI code [autodetect]
127   --enable-vda             enable VDA code   [autodetect]
128   --enable-vdpau           enable VDPAU code [autodetect]
129
130 Individual component options:
131   --disable-everything     disable all components listed below
132   --disable-encoder=NAME   disable encoder NAME
133   --enable-encoder=NAME    enable encoder NAME
134   --disable-encoders       disable all encoders
135   --disable-decoder=NAME   disable decoder NAME
136   --enable-decoder=NAME    enable decoder NAME
137   --disable-decoders       disable all decoders
138   --disable-hwaccel=NAME   disable hwaccel NAME
139   --enable-hwaccel=NAME    enable hwaccel NAME
140   --disable-hwaccels       disable all hwaccels
141   --disable-muxer=NAME     disable muxer NAME
142   --enable-muxer=NAME      enable muxer NAME
143   --disable-muxers         disable all muxers
144   --disable-demuxer=NAME   disable demuxer NAME
145   --enable-demuxer=NAME    enable demuxer NAME
146   --disable-demuxers       disable all demuxers
147   --enable-parser=NAME     enable parser NAME
148   --disable-parser=NAME    disable parser NAME
149   --disable-parsers        disable all parsers
150   --enable-bsf=NAME        enable bitstream filter NAME
151   --disable-bsf=NAME       disable bitstream filter NAME
152   --disable-bsfs           disable all bitstream filters
153   --enable-protocol=NAME   enable protocol NAME
154   --disable-protocol=NAME  disable protocol NAME
155   --disable-protocols      disable all protocols
156   --enable-indev=NAME      enable input device NAME
157   --disable-indev=NAME     disable input device NAME
158   --disable-indevs         disable input devices
159   --enable-outdev=NAME     enable output device NAME
160   --disable-outdev=NAME    disable output device NAME
161   --disable-outdevs        disable output devices
162   --disable-devices        disable all devices
163   --enable-filter=NAME     enable filter NAME
164   --disable-filter=NAME    disable filter NAME
165   --disable-filters        disable all filters
166
167 External library support:
168   --enable-avisynth        enable reading of AVISynth script files [no]
169   --enable-bzlib           enable bzlib [autodetect]
170   --enable-fontconfig      enable fontconfig
171   --enable-frei0r          enable frei0r video filtering
172   --enable-gnutls          enable gnutls [no]
173   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
174   --enable-libass          enable libass subtitles rendering [no]
175   --enable-libbluray       enable BluRay reading using libbluray [no]
176   --enable-libcelt         enable CELT decoding via libcelt [no]
177   --enable-libcdio         enable audio CD grabbing with libcdio
178   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
179                            and libraw1394 [no]
180   --enable-libfaac         enable FAAC support via libfaac [no]
181   --enable-libfdk-aac      enable AAC support via libfdk-aac [no]
182   --enable-libfreetype     enable libfreetype [no]
183   --enable-libgsm          enable GSM support via libgsm [no]
184   --enable-libiec61883     enable iec61883 via libiec61883 [no]
185   --enable-libilbc         enable iLBC de/encoding via libilbc [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-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
191   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
192   --enable-libopencv       enable video filtering via libopencv [no]
193   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [no]
194   --enable-libpulse        enable Pulseaudio input via libpulse [no]
195   --enable-librtmp         enable RTMP[E] support via librtmp [no]
196   --enable-libschroedinger enable Dirac support via libschroedinger [no]
197   --enable-libspeex        enable Speex support via libspeex [no]
198   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
199   --enable-libtheora       enable Theora encoding via libtheora [no]
200   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
201   --enable-libv4l2         enable libv4l2/v4l-utils [no]
202   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
203   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
204   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
205                            native implementation exists [no]
206   --enable-libvpx          enable VP8 support via libvpx [no]
207   --enable-libx264         enable H.264 encoding via x264 [no]
208   --enable-libxavs         enable AVS encoding via xavs [no]
209   --enable-libxvid         enable Xvid encoding via xvidcore,
210                            native MPEG-4/Xvid encoder exists [no]
211   --enable-openal          enable OpenAL 1.1 capture support [no]
212   --enable-openssl         enable openssl [no]
213   --enable-zlib            enable zlib [autodetect]
214
215 Advanced options (experts only):
216   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
217   --enable-cross-compile   assume a cross-compiler is used
218   --sysroot=PATH           root of cross-build tree
219   --sysinclude=PATH        location of cross-build system headers
220   --target-os=OS           compiler targets OS [$target_os]
221   --target-exec=CMD        command to run executables on target
222   --target-path=DIR        path to view of build directory on target
223   --nm=NM                  use nm tool NM [$nm_default]
224   --ar=AR                  use archive tool AR [$ar_default]
225   --as=AS                  use assembler AS [$as_default]
226   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
227   --cc=CC                  use C compiler CC [$cc_default]
228   --cxx=CXX                use C compiler CXX [$cxx_default]
229   --ld=LD                  use linker LD [$ld_default]
230   --host-cc=HOSTCC         use host C compiler HOSTCC
231   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
232   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
233   --host-libs=HLIBS        use libs HLIBS when linking for host
234   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
235   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
236   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
237   --extra-libs=ELIBS       add ELIBS [$ELIBS]
238   --extra-version=STRING   version string suffix []
239   --optflags               override optimization-related compiler flags
240   --build-suffix=SUFFIX    library name suffix []
241   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
242   --progs-suffix=SUFFIX    program name suffix []
243   --arch=ARCH              select architecture [$arch]
244   --cpu=CPU                select the minimum required CPU (affects
245                            instruction selection, may crash on older CPUs)
246   --enable-pic             build position-independent code
247   --enable-sram            allow use of on-chip SRAM
248   --disable-symver         disable symbol versioning
249   --disable-fastdiv        disable table-based division
250   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
251   --disable-safe-bitstream-reader
252                            disable buffer boundary checking in bitreaders
253                            (faster, but may crash)
254   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
255
256 Optimization options (experts only):
257   --disable-asm            disable all assembler optimizations
258   --disable-altivec        disable AltiVec optimizations
259   --disable-amd3dnow       disable 3DNow! optimizations
260   --disable-amd3dnowext    disable 3DNow! extended optimizations
261   --disable-mmx            disable MMX optimizations
262   --disable-mmx2           disable MMX2 optimizations
263   --disable-sse            disable SSE optimizations
264   --disable-ssse3          disable SSSE3 optimizations
265   --disable-avx            disable AVX optimizations
266   --disable-armv5te        disable armv5te optimizations
267   --disable-armv6          disable armv6 optimizations
268   --disable-armv6t2        disable armv6t2 optimizations
269   --disable-armvfp         disable ARM VFP optimizations
270   --disable-mmi            disable MMI optimizations
271   --disable-neon           disable NEON optimizations
272   --disable-vis            disable VIS optimizations
273   --disable-yasm           disable use of yasm assembler
274   --disable-mips32r2       disable MIPS32R2 optimizations
275   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
276   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
277   --disable-mipsfpu        disable floating point MIPS optimizations
278   --disable-fast-unaligned consider unaligned accesses slow
279   --postproc-version=V     build libpostproc version V.
280                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
281
282 Developer options (useful when working on FFmpeg itself):
283   --enable-coverage        build with test coverage instrumentation
284   --disable-debug          disable debugging symbols
285   --enable-debug=LEVEL     set the debug level [$debuglevel]
286   --disable-optimizations  disable compiler optimizations
287   --enable-extra-warnings  enable more compiler warnings
288   --disable-stripping      disable stripping of executables and shared libraries
289   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
290                            2 causes a slowdown at runtime.
291   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
292   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
293                            leaks and errors, using the specified valgrind binary.
294                            Cannot be combined with --target-exec
295   --samples=PATH           location of test samples for FATE, if not set use
296                            \$FATE_SAMPLES at make invocation time.
297   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
298                            should be used only for debugging purposes)
299   --enable-random          randomly enable/disable components
300   --disable-random
301   --enable-random=LIST     randomly enable/disable specific components or
302   --disable-random=LIST    component groups. LIST is a comma-separated list
303                            of NAME[:PROB] entries where NAME is a component
304                            (group) and PROB the probability associated with
305                            NAME (default 0.5).
306   --random-seed=VALUE      seed value for --enable/disable-random
307
308 NOTE: Object files are built at the place where configure is launched.
309 EOF
310   exit 0
311 }
312
313 quotes='""'
314
315 log(){
316     echo "$@" >> $logfile
317 }
318
319 log_file(){
320     log BEGIN $1
321     pr -n -t $1 >> $logfile
322     log END $1
323 }
324
325 echolog(){
326     log "$@"
327     echo "$@"
328 }
329
330 warn(){
331     log "WARNING: $*"
332     WARNINGS="${WARNINGS}WARNING: $*\n"
333 }
334
335 die(){
336     echolog "$@"
337     cat <<EOF
338
339 If you think configure made a mistake, make sure you are using the latest
340 version from Git.  If the latest version fails, report the problem to the
341 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
342 EOF
343     if disabled logging; then
344         cat <<EOF
345 Rerun configure with logging enabled (do not use --disable-logging), and
346 include the log this produces with your report.
347 EOF
348     else
349 cat <<EOF
350 Include the log file "$logfile" produced by configure as this will help
351 solving the problem.
352 EOF
353     fi
354     exit 1
355 }
356
357 # Avoid locale weirdness, besides we really just want to translate ASCII.
358 toupper(){
359     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
360 }
361
362 tolower(){
363     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
364 }
365
366 c_escape(){
367     echo "$*" | sed 's/["\\]/\\\0/g'
368 }
369
370 sh_quote(){
371     v=$(echo "$1" | sed "s/'/'\\\\''/g")
372     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
373     echo "$v"
374 }
375
376 cleanws(){
377     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
378 }
379
380 filter(){
381     pat=$1
382     shift
383     for v; do
384         eval "case $v in $pat) echo $v ;; esac"
385     done
386 }
387
388 filter_out(){
389     pat=$1
390     shift
391     for v; do
392         eval "case $v in $pat) ;; *) echo $v ;; esac"
393     done
394 }
395
396 map(){
397     m=$1
398     shift
399     for v; do eval $m; done
400 }
401
402 set_all(){
403     value=$1
404     shift
405     for var in $*; do
406         eval $var=$value
407     done
408 }
409
410 set_weak(){
411     value=$1
412     shift
413     for var; do
414         eval : \${$var:=$value}
415     done
416 }
417
418 set_safe(){
419     var=$1
420     shift
421     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
422 }
423
424 get_safe(){
425     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
426 }
427
428 pushvar(){
429     for var in $*; do
430         eval level=\${${var}_level:=0}
431         eval ${var}_${level}="\$$var"
432         eval ${var}_level=$(($level+1))
433     done
434 }
435
436 popvar(){
437     for var in $*; do
438         eval level=\${${var}_level:-0}
439         test $level = 0 && continue
440         eval level=$(($level-1))
441         eval $var="\${${var}_${level}}"
442         eval ${var}_level=$level
443         eval unset ${var}_${level}
444     done
445 }
446
447 enable(){
448     set_all yes $*
449 }
450
451 disable(){
452     set_all no $*
453 }
454
455 enable_weak(){
456     set_weak yes $*
457 }
458
459 disable_weak(){
460     set_weak no $*
461 }
462
463 enable_safe(){
464     for var; do
465         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
466     done
467 }
468
469 disable_safe(){
470     for var; do
471         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
472     done
473 }
474
475 do_enable_deep(){
476     for var; do
477         enabled $var && continue
478         eval sel="\$${var}_select"
479         eval sgs="\$${var}_suggest"
480         pushvar var sgs
481         enable_deep $sel
482         popvar sgs
483         enable_deep_weak $sgs
484         popvar var
485     done
486 }
487
488 enable_deep(){
489     do_enable_deep $*
490     enable $*
491 }
492
493 enable_deep_weak(){
494     do_enable_deep $*
495     enable_weak $*
496 }
497
498 enabled(){
499     test "${1#!}" = "$1" && op== || op=!=
500     eval test "x\$${1#!}" $op "xyes"
501 }
502
503 disabled(){
504     test "${1#!}" = "$1" && op== || op=!=
505     eval test "x\$${1#!}" $op "xno"
506 }
507
508 enabled_all(){
509     for opt; do
510         enabled $opt || return 1
511     done
512 }
513
514 disabled_all(){
515     for opt; do
516         disabled $opt || return 1
517     done
518 }
519
520 enabled_any(){
521     for opt; do
522         enabled $opt && return 0
523     done
524 }
525
526 disabled_any(){
527     for opt; do
528         disabled $opt && return 0
529     done
530     return 1
531 }
532
533 set_default(){
534     for opt; do
535         eval : \${$opt:=\$${opt}_default}
536     done
537 }
538
539 is_in(){
540     value=$1
541     shift
542     for var in $*; do
543         [ $var = $value ] && return 0
544     done
545     return 1
546 }
547
548 check_deps(){
549     for cfg; do
550         cfg="${cfg#!}"
551         enabled ${cfg}_checking && die "Circular dependency for $cfg."
552         disabled ${cfg}_checking && continue
553         enable ${cfg}_checking
554
555         eval dep_all="\$${cfg}_deps"
556         eval dep_any="\$${cfg}_deps_any"
557         eval dep_sel="\$${cfg}_select"
558         eval dep_sgs="\$${cfg}_suggest"
559         eval dep_ifa="\$${cfg}_if"
560         eval dep_ifn="\$${cfg}_if_any"
561
562         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
563         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
564         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
565
566         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
567         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
568         enabled_all  $dep_all || disable $cfg
569         enabled_any  $dep_any || disable $cfg
570         disabled_any $dep_sel && disable $cfg
571
572         if enabled $cfg; then
573             eval dep_extralibs="\$${cfg}_extralibs"
574             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
575             enable_deep $dep_sel
576             enable_deep_weak $dep_sgs
577         fi
578
579         disable ${cfg}_checking
580     done
581 }
582
583 print_config_h(){
584     enabled $1 && v=1 || v=0
585     echo "#define $2 $v"
586 }
587
588 print_config_mak(){
589     enabled $1 && v= || v=!
590     echo "$v$2=yes"
591 }
592
593 print_config_asm(){
594     enabled $1 && v=1 || v=0
595     echo "%define $2 $v"
596 }
597
598 print_config(){
599     pfx=$1
600     files=$2
601     shift 2
602     for cfg; do
603         ucname="$(toupper $cfg)"
604         for f in $files; do
605             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
606         done
607     done
608 }
609
610 print_enabled(){
611     test "$1" = -n && end=" " && shift || end="\n"
612     suf=$1
613     shift
614     for v; do
615         enabled $v && printf "%s$end" ${v%$suf};
616     done
617 }
618
619 append(){
620     var=$1
621     shift
622     eval "$var=\"\$$var $*\""
623 }
624
625 prepend(){
626     var=$1
627     shift
628     eval "$var=\"$* \$$var\""
629 }
630
631 add_cppflags(){
632     append CPPFLAGS $($filter_cppflags "$@")
633 }
634
635 add_cflags(){
636     append CFLAGS $($filter_cflags "$@")
637 }
638
639 add_cxxflags(){
640     append CXXFLAGS $($filter_cflags "$@")
641 }
642
643 add_asflags(){
644     append ASFLAGS $($filter_asflags "$@")
645 }
646
647 add_ldflags(){
648     append LDFLAGS "$@"
649 }
650
651 add_extralibs(){
652     prepend extralibs "$@"
653 }
654
655 check_cmd(){
656     log "$@"
657     "$@" >> $logfile 2>&1
658 }
659
660 check_cc(){
661     log check_cc "$@"
662     cat > $TMPC
663     log_file $TMPC
664     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
665 }
666
667 check_cxx(){
668     log check_cxx "$@"
669     cat > $TMPCPP
670     log_file $TMPCPP
671     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
672 }
673
674 check_cpp(){
675     log check_cpp "$@"
676     cat > $TMPC
677     log_file $TMPC
678     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
679 }
680
681 check_as(){
682     log check_as "$@"
683     cat > $TMPC
684     log_file $TMPC
685     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
686 }
687
688 check_asm(){
689     log check_asm "$@"
690     name="$1"
691     code="$2"
692     shift 2
693     disable $name
694     check_as "$@" <<EOF && enable $name
695 void foo(void){ __asm__ volatile($code); }
696 EOF
697 }
698
699 check_yasm(){
700     log check_yasm "$@"
701     echo "$1" > $TMPS
702     log_file $TMPS
703     shift 1
704     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
705 }
706
707 check_ld(){
708     log check_ld "$@"
709     type=$1
710     shift 1
711     flags=''
712     libs=''
713     for f; do
714         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
715     done
716     check_$type $($filter_cflags $flags) || return
717     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
718 }
719
720 check_code(){
721     log check_code "$@"
722     check=$1
723     headers=$2
724     code=$3
725     shift 3
726     {
727         for hdr in $headers; do
728             echo "#include <$hdr>"
729         done
730         echo "int main(void) { $code; return 0; }"
731     } | check_$check "$@"
732 }
733
734 check_cppflags(){
735     log check_cppflags "$@"
736     set -- $($filter_cppflags "$@")
737     check_cc "$@" <<EOF && append CPPFLAGS "$@"
738 int x;
739 EOF
740 }
741
742 check_cflags(){
743     log check_cflags "$@"
744     set -- $($filter_cflags "$@")
745     check_cc "$@" <<EOF && append CFLAGS "$@"
746 int x;
747 EOF
748 }
749
750 check_cxxflags(){
751     log check_cxxflags "$@"
752     set -- $($filter_cflags "$@")
753     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
754 int x;
755 EOF
756 }
757
758 test_ldflags(){
759     log test_ldflags "$@"
760     check_ld "cc" "$@" <<EOF
761 int main(void){ return 0; }
762 EOF
763 }
764
765 check_ldflags(){
766     log check_ldflags "$@"
767     test_ldflags "$@" && add_ldflags "$@"
768 }
769
770 check_header(){
771     log check_header "$@"
772     header=$1
773     shift
774     disable_safe $header
775     check_cpp "$@" <<EOF && enable_safe $header
776 #include <$header>
777 int x;
778 EOF
779 }
780
781 check_func(){
782     log check_func "$@"
783     func=$1
784     shift
785     disable $func
786     check_ld "cc" "$@" <<EOF && enable $func
787 extern int $func();
788 int main(void){ $func(); }
789 EOF
790 }
791
792 check_mathfunc(){
793     log check_mathfunc "$@"
794     func=$1
795     shift
796     disable $func
797     check_ld "cc" "$@" <<EOF && enable $func
798 #include <math.h>
799 float foo(float f) { return $func(f); }
800 int main(void){ return (int) foo; }
801 EOF
802 }
803
804 check_func_headers(){
805     log check_func_headers "$@"
806     headers=$1
807     funcs=$2
808     shift 2
809     {
810         for hdr in $headers; do
811             echo "#include <$hdr>"
812         done
813         for func in $funcs; do
814             echo "long check_$func(void) { return (long) $func; }"
815         done
816         echo "int main(void) { return 0; }"
817     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
818 }
819
820 check_class_headers_cpp(){
821     log check_class_headers_cpp "$@"
822     headers=$1
823     classes=$2
824     shift 2
825     {
826         for hdr in $headers; do
827             echo "#include <$hdr>"
828         done
829         echo "int main(void) { "
830         i=1
831         for class in $classes; do
832             echo "$class obj$i;"
833             i=$(expr $i + 1)
834         done
835         echo "return 0; }"
836     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
837 }
838
839 check_cpp_condition(){
840     log check_cpp_condition "$@"
841     header=$1
842     condition=$2
843     shift 2
844     check_cpp $($filter_cppflags "$@") <<EOF
845 #include <$header>
846 #if !($condition)
847 #error "unsatisfied condition: $condition"
848 #endif
849 EOF
850 }
851
852 check_lib(){
853     log check_lib "$@"
854     header="$1"
855     func="$2"
856     shift 2
857     check_header $header && check_func $func "$@" && add_extralibs "$@"
858 }
859
860 check_lib2(){
861     log check_lib2 "$@"
862     headers="$1"
863     funcs="$2"
864     shift 2
865     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
866 }
867
868 check_lib_cpp(){
869     log check_lib_cpp "$@"
870     headers="$1"
871     classes="$2"
872     shift 2
873     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
874 }
875
876 check_pkg_config(){
877     log check_pkg_config "$@"
878     pkg="$1"
879     headers="$2"
880     funcs="$3"
881     shift 3
882     $pkg_config --exists $pkg 2>/dev/null || return
883     pkg_cflags=$($pkg_config --cflags $pkg)
884     pkg_libs=$($pkg_config --libs $pkg)
885     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
886         set_safe ${pkg}_cflags $pkg_cflags   &&
887         set_safe ${pkg}_libs   $pkg_libs
888 }
889
890 check_exec(){
891     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
892 }
893
894 check_exec_crash(){
895     code=$(cat)
896
897     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
898     # are safe but may not be available everywhere.  Thus we use
899     # raise(SIGTERM) instead.  The check is run in a subshell so we
900     # can redirect the "Terminated" message from the shell.  SIGBUS
901     # is not defined by standard C so it is used conditionally.
902
903     (check_exec "$@") >> $logfile 2>&1 <<EOF
904 #include <signal.h>
905 static void sighandler(int sig){
906     raise(SIGTERM);
907 }
908 int func(void){
909     $code
910 }
911 int (*func_ptr)(void) = func;
912 int main(void){
913     signal(SIGILL, sighandler);
914     signal(SIGFPE, sighandler);
915     signal(SIGSEGV, sighandler);
916 #ifdef SIGBUS
917     signal(SIGBUS, sighandler);
918 #endif
919     return func_ptr();
920 }
921 EOF
922 }
923
924 check_type(){
925     log check_type "$@"
926     headers=$1
927     type=$2
928     shift 2
929     disable_safe "$type"
930     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
931 }
932
933 check_struct(){
934     log check_type "$@"
935     headers=$1
936     struct=$2
937     member=$3
938     shift 3
939     disable_safe "${struct}_${member}"
940     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
941         enable_safe "${struct}_${member}"
942 }
943
944 require(){
945     name="$1"
946     header="$2"
947     func="$3"
948     shift 3
949     check_lib $header $func "$@" || die "ERROR: $name not found"
950 }
951
952 require2(){
953     name="$1"
954     headers="$2"
955     func="$3"
956     shift 3
957     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
958 }
959
960 require_cpp(){
961     name="$1"
962     headers="$2"
963     classes="$3"
964     shift 3
965     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
966 }
967
968 require_pkg_config(){
969     pkg="$1"
970     check_pkg_config "$@" || die "ERROR: $pkg not found"
971     add_cflags    $(get_safe ${pkg}_cflags)
972     add_extralibs $(get_safe ${pkg}_libs)
973 }
974
975 check_host_cc(){
976     log check_host_cc "$@"
977     cat > $TMPC
978     log_file $TMPC
979     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
980 }
981
982 check_host_cflags(){
983     log check_host_cflags "$@"
984     check_host_cc "$@" <<EOF && append host_cflags "$@"
985 int x;
986 EOF
987 }
988
989 apply(){
990     file=$1
991     shift
992     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
993 }
994
995 cp_if_changed(){
996     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
997     mkdir -p "$(dirname $2)"
998     cp -f "$1" "$2"
999 }
1000
1001 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1002 # system-dependent things.
1003
1004 COMPONENT_LIST="
1005     bsfs
1006     decoders
1007     demuxers
1008     encoders
1009     filters
1010     hwaccels
1011     indevs
1012     muxers
1013     outdevs
1014     parsers
1015     protocols
1016 "
1017
1018 PROGRAM_LIST="
1019     ffplay
1020     ffprobe
1021     ffserver
1022     ffmpeg
1023 "
1024
1025 CONFIG_LIST="
1026     $COMPONENT_LIST
1027     $PROGRAM_LIST
1028     ac3dsp
1029     avcodec
1030     avdevice
1031     avfilter
1032     avformat
1033     avresample
1034     avisynth
1035     bzlib
1036     crystalhd
1037     dct
1038     doc
1039     dwt
1040     dxva2
1041     fast_unaligned
1042     fastdiv
1043     fft
1044     fontconfig
1045     frei0r
1046     gnutls
1047     gpl
1048     gray
1049     hardcoded_tables
1050     libaacplus
1051     libass
1052     libbluray
1053     libcdio
1054     libcelt
1055     libdc1394
1056     libfaac
1057     libfdk_aac
1058     libfreetype
1059     libgsm
1060     libiec61883
1061     libilbc
1062     libmodplug
1063     libmp3lame
1064     libnut
1065     libopencore_amrnb
1066     libopencore_amrwb
1067     libopencv
1068     libopenjpeg
1069     libpulse
1070     librtmp
1071     libschroedinger
1072     libspeex
1073     libstagefright_h264
1074     libtheora
1075     libutvideo
1076     libv4l2
1077     libvo_aacenc
1078     libvo_amrwbenc
1079     libvorbis
1080     libvpx
1081     libx264
1082     libxavs
1083     libxvid
1084     lsp
1085     mdct
1086     memalign_hack
1087     memory_poisoning
1088     mpegaudiodsp
1089     network
1090     nonfree
1091     openal
1092     openssl
1093     pic
1094     postproc
1095     rdft
1096     rtpdec
1097     runtime_cpudetect
1098     safe_bitstream_reader
1099     shared
1100     sinewin
1101     small
1102     sram
1103     static
1104     swresample
1105     swscale
1106     swscale_alpha
1107     thumb
1108     vaapi
1109     vda
1110     vdpau
1111     version3
1112     xmm_clobber_test
1113     x11grab
1114     zlib
1115 "
1116
1117 THREADS_LIST='
1118     pthreads
1119     w32threads
1120     os2threads
1121 '
1122
1123 ARCH_LIST='
1124     alpha
1125     arm
1126     avr32
1127     avr32_ap
1128     avr32_uc
1129     bfin
1130     ia64
1131     m68k
1132     mips
1133     mips64
1134     parisc
1135     ppc
1136     ppc64
1137     s390
1138     sh4
1139     sparc
1140     sparc64
1141     tomi
1142     x86
1143     x86_32
1144     x86_64
1145 '
1146
1147 ARCH_EXT_LIST='
1148     altivec
1149     amd3dnow
1150     amd3dnowext
1151     armv5te
1152     armv6
1153     armv6t2
1154     armvfp
1155     avx
1156     mmi
1157     mmx
1158     mmx2
1159     neon
1160     ppc4xx
1161     sse
1162     ssse3
1163     vfpv3
1164     vis
1165     mipsfpu
1166     mips32r2
1167     mipsdspr1
1168     mipsdspr2
1169 '
1170
1171 HAVE_LIST_PUB='
1172     bigendian
1173     fast_unaligned
1174 '
1175
1176 HAVE_LIST="
1177     $ARCH_EXT_LIST
1178     $HAVE_LIST_PUB
1179     $THREADS_LIST
1180     aligned_malloc
1181     aligned_stack
1182     alsa_asoundlib_h
1183     altivec_h
1184     arpa_inet_h
1185     asm_mod_y
1186     asm_types_h
1187     attribute_may_alias
1188     attribute_packed
1189     cbrtf
1190     clock_gettime
1191     closesocket
1192     cmov
1193     cpuid
1194     dcbzl
1195     dev_bktr_ioctl_bt848_h
1196     dev_bktr_ioctl_meteor_h
1197     dev_ic_bt8xx_h
1198     dev_video_bktr_ioctl_bt848_h
1199     dev_video_meteor_ioctl_meteor_h
1200     dlfcn_h
1201     dlopen
1202     dos_paths
1203     dxva_h
1204     ebp_available
1205     ebx_available
1206     exp2
1207     exp2f
1208     fast_64bit
1209     fast_clz
1210     fast_cmov
1211     fcntl
1212     fork
1213     getaddrinfo
1214     gethrtime
1215     getopt
1216     GetProcessAffinityMask
1217     GetProcessMemoryInfo
1218     GetProcessTimes
1219     GetSystemTimeAsFileTime
1220     getrusage
1221     gettimeofday
1222     glob
1223     gnu_as
1224     ibm_asm
1225     inet_aton
1226     inline_asm
1227     isatty
1228     isinf
1229     isnan
1230     jack_port_get_latency_range
1231     kbhit
1232     ldbrx
1233     libdc1394_1
1234     libdc1394_2
1235     llrint
1236     llrintf
1237     local_aligned_16
1238     local_aligned_8
1239     localtime_r
1240     log2
1241     log2f
1242     loongson
1243     lrint
1244     lrintf
1245     lzo1x_999_compress
1246     machine_ioctl_bt848_h
1247     machine_ioctl_meteor_h
1248     makeinfo
1249     malloc_h
1250     MapViewOfFile
1251     memalign
1252     mkstemp
1253     mm_empty
1254     mmap
1255     nanosleep
1256     netinet_sctp_h
1257     PeekNamedPipe
1258     pod2man
1259     poll_h
1260     posix_memalign
1261     pthread_cancel
1262     rdtsc
1263     rint
1264     round
1265     roundf
1266     rweflags
1267     sched_getaffinity
1268     sdl
1269     sdl_video_size
1270     setmode
1271     setrlimit
1272     Sleep
1273     sndio_h
1274     socklen_t
1275     soundcard_h
1276     strerror_r
1277     strptime
1278     struct_addrinfo
1279     struct_group_source_req
1280     struct_ip_mreq_source
1281     struct_ipv6_mreq
1282     struct_pollfd
1283     struct_rusage_ru_maxrss
1284     struct_sockaddr_in6
1285     struct_sockaddr_sa_len
1286     struct_sockaddr_storage
1287     struct_v4l2_frmivalenum_discrete
1288     symver
1289     symver_asm_label
1290     symver_gnu_asm
1291     sysconf
1292     sysctl
1293     sys_mman_h
1294     sys_param_h
1295     sys_resource_h
1296     sys_select_h
1297     sys_soundcard_h
1298     sys_time_h
1299     sys_videoio_h
1300     termios_h
1301     texi2html
1302     threads
1303     trunc
1304     truncf
1305     unistd_h
1306     usleep
1307     vfp_args
1308     VirtualAlloc
1309     windows_h
1310     winsock2_h
1311     xform_asm
1312     xgetbv
1313     xmm_clobbers
1314     yasm
1315 "
1316
1317 # options emitted with CONFIG_ prefix but not available on command line
1318 CONFIG_EXTRA="
1319     aandct
1320     avutil
1321     golomb
1322     gplv3
1323     h264chroma
1324     h264dsp
1325     h264pred
1326     h264qpel
1327     huffman
1328     lgplv3
1329     lpc
1330 "
1331
1332 CMDLINE_SELECT="
1333     $ARCH_EXT_LIST
1334     $CONFIG_LIST
1335     $THREADS_LIST
1336     asm
1337     coverage
1338     cross_compile
1339     debug
1340     extra_warnings
1341     logging
1342     optimizations
1343     stripping
1344     symver
1345     yasm
1346 "
1347
1348 PATHS_LIST='
1349     bindir
1350     datadir
1351     incdir
1352     libdir
1353     mandir
1354     prefix
1355     shlibdir
1356 '
1357
1358 CMDLINE_SET="
1359     $PATHS_LIST
1360     ar
1361     arch
1362     as
1363     assert_level
1364     build_suffix
1365     cc
1366     cpu
1367     cross_prefix
1368     cxx
1369     dep_cc
1370     extra_version
1371     host_cc
1372     host_cflags
1373     host_ldflags
1374     host_libs
1375     host_os
1376     install
1377     ld
1378     logfile
1379     malloc_prefix
1380     nm
1381     optflags
1382     pkg_config
1383     postproc_version
1384     progs_suffix
1385     random_seed
1386     samples
1387     strip
1388     sysinclude
1389     sysroot
1390     target_exec
1391     target_os
1392     target_path
1393     valgrind
1394     yasmexe
1395 "
1396
1397 CMDLINE_APPEND="
1398     extra_cflags
1399     extra_cxxflags
1400 "
1401
1402 # code dependency declarations
1403
1404 # architecture extensions
1405
1406 armv5te_deps="arm"
1407 armv6_deps="arm"
1408 armv6t2_deps="arm"
1409 armvfp_deps="arm"
1410 neon_deps="arm"
1411 vfpv3_deps="armvfp"
1412
1413 mipsfpu_deps="mips"
1414 mips32r2_deps="mips"
1415 mipsdspr1_deps="mips"
1416 mipsdspr2_deps="mips"
1417 mmi_deps="mips"
1418
1419 altivec_deps="ppc"
1420 ppc4xx_deps="ppc"
1421
1422 vis_deps="sparc"
1423
1424 x86_64_suggest="cmov fast_cmov"
1425 amd3dnow_deps="mmx"
1426 amd3dnowext_deps="amd3dnow"
1427 mmx_deps="x86"
1428 mmx2_deps="mmx"
1429 sse_deps="mmx"
1430 ssse3_deps="sse"
1431 avx_deps="ssse3"
1432
1433 aligned_stack_if_any="ppc x86"
1434 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1435 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1436 fast_unaligned_if_any="armv6 ppc x86"
1437
1438 inline_asm_deps="!tms470"
1439 need_memalign="altivec neon sse"
1440
1441 symver_if_any="symver_asm_label symver_gnu_asm"
1442
1443 # subsystems
1444 dct_select="rdft"
1445 mdct_select="fft"
1446 rdft_select="fft"
1447 mpegaudiodsp_select="dct"
1448
1449 # decoders / encoders / hardware accelerators
1450 aac_decoder_select="mdct sinewin"
1451 aac_encoder_select="mdct sinewin"
1452 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1453 ac3_decoder_select="mdct ac3dsp ac3_parser"
1454 ac3_encoder_select="mdct ac3dsp"
1455 ac3_fixed_encoder_select="mdct ac3dsp"
1456 alac_encoder_select="lpc"
1457 amrnb_decoder_select="lsp"
1458 amrwb_decoder_select="lsp"
1459 amv_encoder_select="aandct"
1460 atrac1_decoder_select="mdct sinewin"
1461 atrac3_decoder_select="mdct"
1462 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1463 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1464 cavs_decoder_select="golomb"
1465 cook_decoder_select="mdct sinewin"
1466 cscd_decoder_suggest="zlib"
1467 dca_decoder_select="mdct"
1468 dirac_decoder_select="dwt golomb"
1469 dnxhd_encoder_select="aandct"
1470 dxa_decoder_select="zlib"
1471 eac3_decoder_select="ac3_decoder"
1472 eac3_encoder_select="mdct ac3dsp"
1473 eamad_decoder_select="aandct"
1474 eatgq_decoder_select="aandct"
1475 eatqi_decoder_select="aandct"
1476 exr_decoder_select="zlib"
1477 ffv1_decoder_select="golomb"
1478 flac_decoder_select="golomb"
1479 flac_encoder_select="golomb lpc"
1480 flashsv_decoder_select="zlib"
1481 flashsv_encoder_select="zlib"
1482 flashsv2_encoder_select="zlib"
1483 flashsv2_decoder_select="zlib"
1484 flv_decoder_select="h263_decoder"
1485 flv_encoder_select="h263_encoder"
1486 fraps_decoder_select="huffman"
1487 h261_encoder_select="aandct"
1488 h263_decoder_select="h263_parser"
1489 h263_encoder_select="aandct"
1490 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1491 h263i_decoder_select="h263_decoder"
1492 h263p_encoder_select="h263_encoder"
1493 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1494 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1495 h264_dxva2_hwaccel_deps="dxva2api_h"
1496 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1497 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1498 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1499 h264_vda_hwaccel_select="vda h264_decoder"
1500 h264_vdpau_decoder_select="vdpau h264_decoder"
1501 iac_decoder_select="fft mdct sinewin"
1502 imc_decoder_select="fft mdct sinewin"
1503 jpegls_decoder_select="golomb"
1504 jpegls_encoder_select="golomb"
1505 ljpeg_encoder_select="aandct"
1506 loco_decoder_select="golomb"
1507 mjpeg_encoder_select="aandct"
1508 mlp_decoder_select="mlp_parser"
1509 mp1_decoder_select="mpegaudiodsp"
1510 mp1float_decoder_select="mpegaudiodsp"
1511 mp2_decoder_select="mpegaudiodsp"
1512 mp2float_decoder_select="mpegaudiodsp"
1513 mp3_decoder_select="mpegaudiodsp"
1514 mp3adu_decoder_select="mpegaudiodsp"
1515 mp3adufloat_decoder_select="mpegaudiodsp"
1516 mp3float_decoder_select="mpegaudiodsp"
1517 mp3on4_decoder_select="mpegaudiodsp"
1518 mp3on4float_decoder_select="mpegaudiodsp"
1519 mpc7_decoder_select="mpegaudiodsp"
1520 mpc8_decoder_select="mpegaudiodsp"
1521 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1522 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1523 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1524 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1525 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1526 mpeg1video_encoder_select="aandct"
1527 mpeg2_crystalhd_decoder_select="crystalhd"
1528 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1529 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1530 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1531 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1532 mpeg2video_encoder_select="aandct"
1533 mpeg4_crystalhd_decoder_select="crystalhd"
1534 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1535 mpeg4_encoder_select="h263_encoder"
1536 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1537 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1538 msmpeg4_crystalhd_decoder_select="crystalhd"
1539 msmpeg4v1_decoder_select="h263_decoder"
1540 msmpeg4v1_encoder_select="h263_encoder"
1541 msmpeg4v2_decoder_select="h263_decoder"
1542 msmpeg4v2_encoder_select="h263_encoder"
1543 msmpeg4v3_decoder_select="h263_decoder"
1544 msmpeg4v3_encoder_select="h263_encoder"
1545 nellymoser_decoder_select="mdct sinewin"
1546 nellymoser_encoder_select="mdct sinewin"
1547 png_decoder_select="zlib"
1548 png_encoder_select="zlib"
1549 qcelp_decoder_select="lsp"
1550 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1551 ra_144_encoder_select="lpc"
1552 ralf_decoder_select="golomb"
1553 rv10_decoder_select="h263_decoder"
1554 rv10_encoder_select="h263_encoder"
1555 rv20_decoder_select="h263_decoder"
1556 rv20_encoder_select="h263_encoder"
1557 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1558 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1559 shorten_decoder_select="golomb"
1560 sipr_decoder_select="lsp"
1561 snow_decoder_select="dwt"
1562 snow_encoder_select="aandct dwt"
1563 sonic_decoder_select="golomb"
1564 sonic_encoder_select="golomb"
1565 sonic_ls_encoder_select="golomb"
1566 svq1_encoder_select="aandct"
1567 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1568 svq3_decoder_suggest="zlib"
1569 theora_decoder_select="vp3_decoder"
1570 tiff_decoder_suggest="zlib"
1571 tiff_encoder_suggest="zlib"
1572 tscc_decoder_select="zlib"
1573 twinvq_decoder_select="mdct lsp sinewin"
1574 vc1_crystalhd_decoder_select="crystalhd"
1575 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1576 vc1_dxva2_hwaccel_deps="dxva2api_h"
1577 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1578 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1579 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1580 vc1image_decoder_select="vc1_decoder"
1581 vorbis_decoder_select="mdct"
1582 vorbis_encoder_select="mdct"
1583 vp6_decoder_select="huffman"
1584 vp6a_decoder_select="vp6_decoder"
1585 vp6f_decoder_select="vp6_decoder"
1586 vp8_decoder_select="h264pred h264qpel"
1587 wmapro_decoder_select="mdct sinewin"
1588 wmav1_decoder_select="mdct sinewin"
1589 wmav1_encoder_select="mdct sinewin"
1590 wmav2_decoder_select="mdct sinewin"
1591 wmav2_encoder_select="mdct sinewin"
1592 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1593 wmv1_decoder_select="h263_decoder"
1594 wmv1_encoder_select="h263_encoder"
1595 wmv2_decoder_select="h263_decoder"
1596 wmv2_encoder_select="h263_encoder"
1597 wmv3_decoder_select="vc1_decoder"
1598 wmv3_crystalhd_decoder_select="crystalhd"
1599 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1600 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1601 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1602 wmv3image_decoder_select="wmv3_decoder"
1603 zerocodec_decoder_select="zlib"
1604 zlib_decoder_select="zlib"
1605 zlib_encoder_select="zlib"
1606 zmbv_decoder_select="zlib"
1607 zmbv_encoder_select="zlib"
1608
1609 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1610 vaapi_deps="va_va_h"
1611 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1612 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1613
1614 # parsers
1615 h264_parser_select="golomb h264dsp h264pred"
1616
1617 # external libraries
1618 libaacplus_encoder_deps="libaacplus"
1619 libcelt_decoder_deps="libcelt"
1620 libfaac_encoder_deps="libfaac"
1621 libfdk_aac_encoder_deps="libfdk_aac"
1622 libgsm_decoder_deps="libgsm"
1623 libgsm_encoder_deps="libgsm"
1624 libgsm_ms_decoder_deps="libgsm"
1625 libgsm_ms_encoder_deps="libgsm"
1626 libilbc_decoder_deps="libilbc"
1627 libilbc_encoder_deps="libilbc"
1628 libmodplug_demuxer_deps="libmodplug"
1629 libmp3lame_encoder_deps="libmp3lame"
1630 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1631 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1632 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1633 libopenjpeg_decoder_deps="libopenjpeg"
1634 libopenjpeg_encoder_deps="libopenjpeg"
1635 libschroedinger_decoder_deps="libschroedinger"
1636 libschroedinger_encoder_deps="libschroedinger"
1637 libspeex_decoder_deps="libspeex"
1638 libspeex_encoder_deps="libspeex"
1639 libstagefright_h264_decoder_deps="libstagefright_h264"
1640 libtheora_encoder_deps="libtheora"
1641 libvo_aacenc_encoder_deps="libvo_aacenc"
1642 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1643 libvorbis_decoder_deps="libvorbis"
1644 libvorbis_encoder_deps="libvorbis"
1645 libvpx_decoder_deps="libvpx"
1646 libvpx_encoder_deps="libvpx"
1647 libx264_encoder_deps="libx264"
1648 libx264rgb_encoder_deps="libx264"
1649 libxavs_encoder_deps="libxavs"
1650 libxvid_encoder_deps="libxvid"
1651 libutvideo_decoder_deps="libutvideo"
1652 libutvideo_encoder_deps="libutvideo"
1653
1654 # demuxers / muxers
1655 ac3_demuxer_select="ac3_parser"
1656 asf_stream_muxer_select="asf_muxer"
1657 avisynth_demuxer_deps="avisynth"
1658 dirac_demuxer_select="dirac_parser"
1659 eac3_demuxer_select="ac3_parser"
1660 flac_demuxer_select="flac_parser"
1661 ipod_muxer_select="mov_muxer"
1662 libnut_demuxer_deps="libnut"
1663 libnut_muxer_deps="libnut"
1664 matroska_audio_muxer_select="matroska_muxer"
1665 matroska_demuxer_suggest="zlib bzlib"
1666 mov_demuxer_suggest="zlib"
1667 mp3_demuxer_select="mpegaudio_parser"
1668 mp4_muxer_select="mov_muxer"
1669 mpegts_muxer_select="adts_muxer latm_muxer"
1670 mpegtsraw_demuxer_select="mpegts_demuxer"
1671 mxf_d10_muxer_select="mxf_muxer"
1672 ogg_demuxer_select="golomb"
1673 psp_muxer_select="mov_muxer"
1674 rtp_demuxer_select="sdp_demuxer"
1675 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1676 rtsp_demuxer_select="http_protocol rtpdec"
1677 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1678 sap_demuxer_select="sdp_demuxer"
1679 sap_muxer_select="rtp_muxer rtp_protocol"
1680 sdp_demuxer_select="rtpdec"
1681 spdif_muxer_select="aac_parser"
1682 tg2_muxer_select="mov_muxer"
1683 tgp_muxer_select="mov_muxer"
1684 w64_demuxer_deps="wav_demuxer"
1685
1686 # indevs / outdevs
1687 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1688 alsa_outdev_deps="alsa_asoundlib_h"
1689 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1690 dshow_indev_deps="IBaseFilter"
1691 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1692 dv1394_indev_deps="dv1394 dv_demuxer"
1693 fbdev_indev_deps="linux_fb_h"
1694 iec61883_indev_deps="libiec61883"
1695 jack_indev_deps="jack_jack_h sem_timedwait"
1696 lavfi_indev_deps="avfilter"
1697 libcdio_indev_deps="libcdio"
1698 libdc1394_indev_deps="libdc1394"
1699 libv4l2_indev_deps="libv4l2"
1700 openal_indev_deps="openal"
1701 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1702 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1703 pulse_indev_deps="libpulse"
1704 sdl_outdev_deps="sdl"
1705 sndio_indev_deps="sndio_h"
1706 sndio_outdev_deps="sndio_h"
1707 v4l_indev_deps="linux_videodev_h"
1708 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1709 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1710 vfwcap_indev_extralibs="-lavicap32"
1711 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1712
1713 # protocols
1714 bluray_protocol_deps="libbluray"
1715 gopher_protocol_deps="network"
1716 httpproxy_protocol_deps="network"
1717 httpproxy_protocol_select="tcp_protocol"
1718 http_protocol_deps="network"
1719 http_protocol_select="tcp_protocol"
1720 https_protocol_select="tls_protocol"
1721 librtmp_protocol_deps="librtmp"
1722 librtmpe_protocol_deps="librtmp"
1723 librtmps_protocol_deps="librtmp"
1724 librtmpt_protocol_deps="librtmp"
1725 librtmpte_protocol_deps="librtmp"
1726 mmsh_protocol_select="http_protocol"
1727 mmst_protocol_deps="network"
1728 rtmp_protocol_deps="!librtmp_protocol"
1729 rtmp_protocol_select="tcp_protocol"
1730 rtmphttp_protocol_deps="!librtmp_protocol"
1731 rtmphttp_protocol_select="http_protocol"
1732 rtmpt_protocol_deps="!librtmp_protocol"
1733 rtmpt_protocol_select="rtmphttp_protocol"
1734 rtp_protocol_select="udp_protocol"
1735 sctp_protocol_deps="network netinet_sctp_h"
1736 tcp_protocol_deps="network"
1737 tls_protocol_deps_any="openssl gnutls"
1738 tls_protocol_select="tcp_protocol"
1739 udp_protocol_deps="network"
1740
1741 # filters
1742 aconvert_filter_deps="swresample"
1743 amovie_filter_deps="avcodec avformat"
1744 aresample_filter_deps="swresample"
1745 ass_filter_deps="libass"
1746 asyncts_filter_deps="avresample"
1747 atempo_filter_deps="avcodec rdft"
1748 blackframe_filter_deps="gpl"
1749 boxblur_filter_deps="gpl"
1750 colormatrix_filter_deps="gpl"
1751 cropdetect_filter_deps="gpl"
1752 delogo_filter_deps="gpl"
1753 deshake_filter_deps="avcodec"
1754 drawtext_filter_deps="libfreetype"
1755 frei0r_filter_deps="frei0r dlopen"
1756 frei0r_filter_extralibs='$ldl'
1757 frei0r_src_filter_deps="frei0r dlopen"
1758 frei0r_src_filter_extralibs='$ldl'
1759 hqdn3d_filter_deps="gpl"
1760 movie_filter_deps="avcodec avformat"
1761 mp_filter_deps="gpl avcodec swscale postproc"
1762 mptestsrc_filter_deps="gpl"
1763 negate_filter_deps="lut_filter"
1764 resample_filter_deps="avresample"
1765 ocv_filter_deps="libopencv"
1766 pan_filter_deps="swresample"
1767 removelogo_filter_deps="avcodec avformat swscale"
1768 scale_filter_deps="swscale"
1769 select_filter_deps="avcodec"
1770 super2xsai_filter_deps="gpl"
1771 tinterlace_filter_deps="gpl"
1772 yadif_filter_deps="gpl"
1773
1774 # libraries
1775 avdevice_deps="avcodec avformat"
1776 avformat_deps="avcodec"
1777 postproc_deps="gpl"
1778
1779 # programs
1780 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1781 ffmpeg_select="buffersink_filter format_filter aformat_filter
1782                setpts_filter null_filter anull_filter abuffersink_filter"
1783 ffplay_deps="avcodec avformat swscale swresample sdl"
1784 ffplay_select="buffersink_filter rdft"
1785 ffprobe_deps="avcodec avformat"
1786 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1787 ffserver_extralibs='$ldl'
1788
1789 doc_deps_any="texi2html makeinfo pod2man"
1790
1791 # tests
1792
1793 test_deps(){
1794     suf1=$1
1795     suf2=$2
1796     shift 2
1797     for v; do
1798         dep=${v%=*}
1799         tests=${v#*=}
1800         for name in ${tests}; do
1801             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1802         done
1803     done
1804 }
1805
1806 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1807
1808 test_deps _muxer _demuxer                                               \
1809     aiff                                                                \
1810     pcm_alaw=alaw                                                       \
1811     asf                                                                 \
1812     au                                                                  \
1813     avi                                                                 \
1814     dv=dv_fmt                                                           \
1815     ffm                                                                 \
1816     flv=flv_fmt                                                         \
1817     gxf                                                                 \
1818     matroska=mkv                                                        \
1819     mmf                                                                 \
1820     mov="mov ismv"                                                      \
1821     pcm_mulaw=mulaw                                                     \
1822     mxf="mxf mxf_d10"                                                   \
1823     nut                                                                 \
1824     ogg="ogg ogg_vp3"                                                   \
1825     rawvideo=pixfmt                                                     \
1826     rm                                                                  \
1827     swf                                                                 \
1828     mpegts=ts                                                           \
1829     voc                                                                 \
1830     wav                                                                 \
1831     yuv4mpegpipe=yuv4mpeg                                               \
1832
1833 colormatrix1_test_deps="colormatrix_filter"
1834 colormatrix2_test_deps="colormatrix_filter"
1835 flashsv2_test_deps="zlib"
1836 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1837 mpng_test_deps="zlib"
1838 pp_test_deps="mp_filter"
1839 pp2_test_deps="mp_filter"
1840 pp3_test_deps="mp_filter"
1841 pp4_test_deps="mp_filter"
1842 pp5_test_deps="mp_filter"
1843 pp6_test_deps="mp_filter"
1844 zlib_test_deps="zlib"
1845 zmbv_test_deps="zlib"
1846
1847 # default parameters
1848
1849 logfile="config.log"
1850
1851 # installation paths
1852 prefix_default="/usr/local"
1853 bindir_default='${prefix}/bin'
1854 datadir_default='${prefix}/share/ffmpeg'
1855 incdir_default='${prefix}/include'
1856 libdir_default='${prefix}/lib'
1857 mandir_default='${prefix}/share/man'
1858 shlibdir_default="$libdir_default"
1859 postproc_version_default="current"
1860
1861 # toolchain
1862 ar_default="ar"
1863 cc_default="gcc"
1864 cxx_default="g++"
1865 cc_version=\"unknown\"
1866 host_cc_default="gcc"
1867 install="install"
1868 ln_s="ln -sf"
1869 nm_default="nm"
1870 objformat="elf"
1871 pkg_config_default=pkg-config
1872 ranlib="ranlib"
1873 strip_default="strip"
1874 yasmexe_default="yasm"
1875
1876 nm_opts='-g'
1877 nogas=":"
1878
1879 # machine
1880 arch_default=$(uname -m)
1881 cpu="generic"
1882
1883 # OS
1884 target_os_default=$(tolower $(uname -s))
1885 host_os=$target_os_default
1886
1887 # alternative libpostproc version
1888 ALT_PP_VER_MAJOR=51
1889 ALT_PP_VER_MINOR=2
1890 ALT_PP_VER_MICRO=101
1891 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1892
1893 # configurable options
1894 enable $PROGRAM_LIST
1895
1896 enable avcodec
1897 enable avdevice
1898 enable avfilter
1899 enable avformat
1900 enable avutil
1901 enable postproc
1902 enable stripping
1903 enable swresample
1904 enable swscale
1905
1906 enable asm
1907 enable debug
1908 enable doc
1909 enable fastdiv
1910 enable network
1911 enable optimizations
1912 enable safe_bitstream_reader
1913 enable static
1914 enable swscale_alpha
1915
1916 # build settings
1917 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1918 FFSERVERLDFLAGS=-Wl,-E
1919 LIBPREF="lib"
1920 LIBSUF=".a"
1921 FULLNAME='$(NAME)$(BUILDSUF)'
1922 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1923 SLIBPREF="lib"
1924 SLIBSUF=".so"
1925 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1926 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1927 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1928 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1929 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1930 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1931
1932 AS_O='-o $@'
1933 CC_O='-o $@'
1934 CXX_O='-o $@'
1935
1936 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1937 host_libs='-lm'
1938
1939 target_path='$(CURDIR)'
1940
1941 # since the object filename is not given with the -MM flag, the compiler
1942 # is only able to print the basename, and we must add the path ourselves
1943 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1944 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1945
1946 # find source path
1947 if test -f configure; then
1948     source_path=.
1949 else
1950     source_path=$(cd $(dirname "$0"); pwd)
1951     echo "$source_path" | grep -q '[[:blank:]]' &&
1952         die "Out of tree builds are impossible with whitespace in source path."
1953     test -e "$source_path/config.h" &&
1954         die "Out of tree builds are impossible with config.h in source dir."
1955 fi
1956
1957 for v in "$@"; do
1958     r=${v#*=}
1959     l=${v%"$r"}
1960     r=$(sh_quote "$r")
1961     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1962 done
1963
1964 find_things(){
1965     thing=$1
1966     pattern=$2
1967     file=$source_path/$3
1968     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1969 }
1970
1971 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1972 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1973 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1974 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1975 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1976 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1977 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1978 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1979 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1980 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1981 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1982
1983 ALL_COMPONENTS="
1984     $BSF_LIST
1985     $DECODER_LIST
1986     $DEMUXER_LIST
1987     $ENCODER_LIST
1988     $FILTER_LIST
1989     $HWACCEL_LIST
1990     $INDEV_LIST
1991     $MUXER_LIST
1992     $OUTDEV_LIST
1993     $PARSER_LIST
1994     $PROTOCOL_LIST
1995 "
1996
1997 find_tests(){
1998     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1999 }
2000
2001 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2002 LAVF_TESTS=$(find_tests lavf)
2003 LAVFI_TESTS=$(find_tests lavfi)
2004 SEEK_TESTS=$(find_tests seek seek_)
2005
2006 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2007
2008 for n in $COMPONENT_LIST; do
2009     v=$(toupper ${n%s})_LIST
2010     eval enable \$$v
2011     eval ${n}_if_any="\$$v"
2012 done
2013
2014 enable $ARCH_EXT_LIST $ALL_TESTS
2015
2016 die_unknown(){
2017     echo "Unknown option \"$1\"."
2018     echo "See $0 --help for available options."
2019     exit 1
2020 }
2021
2022 show_list() {
2023     suffix=_$1
2024     shift
2025     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2026     exit 0
2027 }
2028
2029 rand_list(){
2030     IFS=', '
2031     set -- $*
2032     unset IFS
2033     for thing; do
2034         comp=${thing%:*}
2035         prob=${thing#$comp}
2036         prob=${prob#:}
2037         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2038         echo "prob ${prob:-0.5}"
2039         printf '%s\n' $comp
2040     done
2041 }
2042
2043 do_random(){
2044     action=$1
2045     shift
2046     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2047     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2048 }
2049
2050 for opt do
2051     optval="${opt#*=}"
2052     case "$opt" in
2053     --extra-ldflags=*) add_ldflags $optval
2054     ;;
2055     --extra-libs=*) add_extralibs $optval
2056     ;;
2057     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2058     ;;
2059     --enable-debug=*) debuglevel="$optval"
2060     ;;
2061     --disable-everything)
2062     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2063     ;;
2064     --enable-random|--disable-random)
2065     action=${opt%%-random}
2066     do_random ${action#--} $COMPONENT_LIST
2067     ;;
2068     --enable-random=*|--disable-random=*)
2069     action=${opt%%-random=*}
2070     do_random ${action#--} $optval
2071     ;;
2072     --enable-*=*|--disable-*=*)
2073     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2074     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2075     eval list=\$$(toupper $thing)_LIST
2076     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2077     $action $(filter "$name" $list)
2078     ;;
2079     --enable-?*|--disable-?*)
2080     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2081     if is_in $option $COMPONENT_LIST; then
2082         test $action = disable && action=unset
2083         eval $action \$$(toupper ${option%s})_LIST
2084     elif is_in $option $CMDLINE_SELECT; then
2085         $action $option
2086     else
2087         die_unknown $opt
2088     fi
2089     ;;
2090     --list-*)
2091         NAME="${opt#--list-}"
2092         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2093         NAME=${NAME%s}
2094         eval show_list $NAME \$$(toupper $NAME)_LIST
2095     ;;
2096     --help|-h) show_help
2097     ;;
2098     *)
2099     optname="${opt%%=*}"
2100     optname="${optname#--}"
2101     optname=$(echo "$optname" | sed 's/-/_/g')
2102     if is_in $optname $CMDLINE_SET; then
2103         eval $optname='$optval'
2104     elif is_in $optname $CMDLINE_APPEND; then
2105         append $optname "$optval"
2106     else
2107          die_unknown $opt
2108     fi
2109     ;;
2110     esac
2111 done
2112
2113 disabled logging && logfile=/dev/null
2114
2115 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2116 set >> $logfile
2117
2118 test -n "$cross_prefix" && enable cross_compile
2119
2120 if enabled cross_compile; then
2121     test -n "$arch" && test -n "$target_os" ||
2122         die "Must specify target arch and OS when cross-compiling"
2123 fi
2124
2125 set_default arch target_os postproc_version
2126
2127 # Check if we should build alternative libpostproc version instead of current
2128 if   test "$postproc_version" = $ALT_PP_VER; then
2129   LIBPOSTPROC_VERSION=$ALT_PP_VER
2130   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2131   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2132   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2133 elif test "$postproc_version" != current; then
2134   die "Invalid argument to --postproc-version. See --help output."
2135 fi
2136
2137 ar_default="${cross_prefix}${ar_default}"
2138 cc_default="${cross_prefix}${cc_default}"
2139 cxx_default="${cross_prefix}${cxx_default}"
2140 nm_default="${cross_prefix}${nm_default}"
2141 pkg_config_default="${cross_prefix}${pkg_config_default}"
2142 ranlib="${cross_prefix}${ranlib}"
2143 strip_default="${cross_prefix}${strip_default}"
2144
2145 sysinclude_default="${sysroot}/usr/include"
2146
2147 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2148 enabled cross_compile || host_cc_default=$cc
2149 set_default host_cc
2150
2151 if ! $pkg_config --version >/dev/null 2>&1; then
2152     warn "$pkg_config not found, library detection may fail."
2153     pkg_config=false
2154 fi
2155
2156 exesuf() {
2157     case $1 in
2158         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2159     esac
2160 }
2161
2162 EXESUF=$(exesuf $target_os)
2163 HOSTEXESUF=$(exesuf $host_os)
2164
2165 # set temporary file name
2166 : ${TMPDIR:=$TEMPDIR}
2167 : ${TMPDIR:=$TMP}
2168 : ${TMPDIR:=/tmp}
2169
2170 if ! check_cmd mktemp -u XXXXXX; then
2171     # simple replacement for missing mktemp
2172     # NOT SAFE FOR GENERAL USE
2173     mktemp(){
2174         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2175     }
2176 fi
2177
2178 tmpfile(){
2179     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2180         (set -C; exec > $tmp) 2>/dev/null ||
2181         die "Unable to create temporary file in $TMPDIR."
2182     append TMPFILES $tmp
2183     eval $1=$tmp
2184 }
2185
2186 trap 'rm -f -- $TMPFILES' EXIT
2187
2188 tmpfile TMPASM .asm
2189 tmpfile TMPC   .c
2190 tmpfile TMPCPP .cpp
2191 tmpfile TMPE   $EXESUF
2192 tmpfile TMPH   .h
2193 tmpfile TMPO   .o
2194 tmpfile TMPS   .S
2195 tmpfile TMPSH  .sh
2196 tmpfile TMPV   .ver
2197
2198 unset -f mktemp
2199
2200 chmod +x $TMPE
2201
2202 # make sure we can execute files in $TMPDIR
2203 cat > $TMPSH 2>> $logfile <<EOF
2204 #! /bin/sh
2205 EOF
2206 chmod +x $TMPSH >> $logfile 2>&1
2207 if ! $TMPSH >> $logfile 2>&1; then
2208     cat <<EOF
2209 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2210 variable to another directory and make sure that it is not mounted noexec.
2211 EOF
2212     die "Sanity test failed."
2213 fi
2214
2215 filter_asflags=echo
2216 filter_cflags=echo
2217 filter_cppflags=echo
2218
2219 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2220     cc_type=llvm_gcc
2221     cc_version=__VERSION__
2222     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2223     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2224     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2225     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2226     speed_cflags='-O3'
2227     size_cflags='-Os'
2228 elif $cc -v 2>&1 | grep -qi ^gcc; then
2229     cc_type=gcc
2230     cc_version=__VERSION__
2231     gcc_version=$($cc --version | head -n1)
2232     gcc_basever=$($cc -dumpversion)
2233     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2234     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2235     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2236     if ! $cc -dumpversion | grep -q '^2\.'; then
2237         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2238         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2239     fi
2240     speed_cflags='-O3'
2241     size_cflags='-Os'
2242 elif $cc --version 2>/dev/null | grep -q Intel; then
2243     cc_type=icc
2244     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2245     cc_ident=$($cc --version | head -n1)
2246     icc_version=$($cc -dumpversion)
2247     CC_DEPFLAGS='-MMD'
2248     AS_DEPFLAGS='-MMD'
2249     speed_cflags='-O3'
2250     size_cflags='-Os'
2251     noopt_cflags='-O1'
2252 elif $cc -v 2>&1 | grep -q xlc; then
2253     cc_type=xlc
2254     cc_version="AV_STRINGIFY(__IBMC__)"
2255     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2256     speed_cflags='-O5'
2257     size_cflags='-O5 -qcompact'
2258 elif $cc -V 2>/dev/null | grep -q Compaq; then
2259     cc_type=ccc
2260     cc_version="AV_STRINGIFY(__DECC_VER)"
2261     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2262     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2263     debuglevel=3
2264     add_ldflags -Wl,-z,now # calls to libots crash without this
2265     speed_cflags='-fast'
2266     size_cflags='-O1'
2267 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2268     test -d "$sysroot" || die "No valid sysroot specified."
2269     cc_type=armcc
2270     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2271     cc_ident=$($cc --vsn | head -n1)
2272     armcc_conf="$PWD/armcc.conf"
2273     $cc --arm_linux_configure                 \
2274         --arm_linux_config_file="$armcc_conf" \
2275         --configure_sysroot="$sysroot"        \
2276         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2277         die "Error creating armcc configuration file."
2278     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2279     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2280     as_default="${cross_prefix}gcc"
2281     CC_DEPFLAGS='-MMD'
2282     AS_DEPFLAGS='-MMD'
2283     speed_cflags='-O3'
2284     size_cflags='-Os'
2285     filter_asflags="filter_out -W${armcc_opt}*"
2286 elif $cc -version 2>/dev/null | grep -q TMS470; then
2287     cc_type=tms470
2288     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2289     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2290     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2291     CC_O='-fr=$(@D)'
2292     as_default="${cross_prefix}gcc"
2293     ld_default="${cross_prefix}gcc"
2294     TMPO=$(basename $TMPC .c).o
2295     append TMPFILES $TMPO
2296     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2297     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2298     AS_DEPFLAGS='-MMD'
2299     speed_cflags='-O3 -mf=5'
2300     size_cflags='-O3 -mf=2'
2301     filter_cflags=tms470_flags
2302     tms470_flags(){
2303         for flag; do
2304             case $flag in
2305                 -march=*|-mcpu=*)
2306                     case "${flag#*=}" in
2307                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2308                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2309                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2310                         armv6*|arm11*)          echo -mv=6   ;;
2311                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2312                                                 echo -mv=5e  ;;
2313                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2314                     esac
2315                     ;;
2316                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2317                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2318                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2319                 -msoft-float)   echo --float_support=vfplib       ;;
2320                 -O[0-3]|-mf=*)  echo $flag                        ;;
2321                 -g)             echo -g -mn                       ;;
2322                 -pds=*)         echo $flag                        ;;
2323             esac
2324         done
2325     }
2326 elif $cc -v 2>&1 | grep -q clang; then
2327     cc_type=clang
2328     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2329         cc_version=__clang_version__ || cc_version=__VERSION__
2330     cc_ident=$($cc --version | head -n1)
2331     CC_DEPFLAGS='-MMD'
2332     AS_DEPFLAGS='-MMD'
2333     speed_cflags='-O3'
2334     size_cflags='-Os'
2335 elif $cc -V 2>&1 | grep -q Sun; then
2336     cc_type=suncc
2337     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2338     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2339     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2340     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2341     add_ldflags -xc99
2342     speed_cflags='-O5'
2343     size_cflags='-O5 -xspace'
2344     filter_cflags=suncc_flags
2345     suncc_flags(){
2346         for flag; do
2347             case $flag in
2348                 -march=*|-mcpu=*)
2349                     case "${flag#*=}" in
2350                         native)                   echo -xtarget=native       ;;
2351                         v9|niagara)               echo -xarch=sparc          ;;
2352                         ultrasparc)               echo -xarch=sparcvis       ;;
2353                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2354                         i586|pentium)             echo -xchip=pentium        ;;
2355                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2356                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2357                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2358                         pentium4*)          echo -xtarget=pentium4           ;;
2359                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2360                         *-sse3)             echo -xarch=sse3                 ;;
2361                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2362                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2363                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2364                         k8|opteron|athlon64|athlon-fx)
2365                                                   echo -xarch=sse2a          ;;
2366                         athlon*)                  echo -xarch=pentium_proa   ;;
2367                     esac
2368                     ;;
2369                 -std=c99)             echo -xc99              ;;
2370                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2371                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2372                 -W*,*)                echo $flag              ;;
2373                 -f*-*|-W*)                                    ;;
2374                 *)                    echo $flag              ;;
2375             esac
2376         done
2377     }
2378 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2379     cc_type=pathscale
2380     cc_version=__PATHSCALE__
2381     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2382     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2383     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2384     speed_cflags='-O2'
2385     size_cflags='-Os'
2386     filter_cflags='filter_out -Wdisabled-optimization'
2387 elif $cc -v 2>&1 | grep -q Open64; then
2388     cc_type=open64
2389     cc_version=__OPEN64__
2390     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2391     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2392     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2393     speed_cflags='-O2'
2394     size_cflags='-Os'
2395     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2396 elif $cc -V 2>&1 | grep -q Portland; then
2397     cc_type=pgi
2398     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2399     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2400     opt_common='-alias=ansi -Mlre -Mpre'
2401     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2402     size_cflags="-O2 -Munroll=c:1 $opt_common"
2403     noopt_cflags="-O1"
2404     filter_cflags=pgi_flags
2405     pgi_flags(){
2406         for flag; do
2407             case $flag in
2408                 -fomit-frame-pointer) echo -Mnoframe ;;
2409                 -g)                   echo -gopt ;;
2410                 *)                    echo $flag ;;
2411             esac
2412         done
2413     }
2414 fi
2415
2416 test -n "$cc_type" && enable $cc_type ||
2417     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2418
2419 : ${as_default:=$cc}
2420 : ${dep_cc_default:=$cc}
2421 : ${ld_default:=$cc}
2422 set_default ar as dep_cc ld
2423
2424 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2425 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2426 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2427
2428 add_cflags $extra_cflags
2429 add_cxxflags $extra_cxxflags
2430 add_asflags $extra_cflags
2431
2432 if test -n "$sysroot"; then
2433     case "$cc_type" in
2434         gcc|llvm_gcc|clang)
2435             add_cppflags --sysroot="$sysroot"
2436             add_ldflags --sysroot="$sysroot"
2437         ;;
2438         tms470)
2439             add_cppflags -I"$sysinclude"
2440             add_ldflags  --sysroot="$sysroot"
2441         ;;
2442     esac
2443 fi
2444
2445 if test "$cpu" = host; then
2446     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2447
2448     case "$cc_type" in
2449         gcc|llvm_gcc)
2450             check_native(){
2451                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2452                 sed -n "/cc1.*$1=/{
2453                             s/.*$1=\\([^ ]*\\).*/\\1/
2454                             p
2455                             q
2456                         }" $TMPE
2457             }
2458             cpu=$(check_native -march || check_native -mcpu)
2459         ;;
2460     esac
2461
2462     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2463 fi
2464
2465 # Deal with common $arch aliases
2466 case "$arch" in
2467     arm*|iPad*)
2468         arch="arm"
2469     ;;
2470     mips|mipsel|IP*)
2471         arch="mips"
2472     ;;
2473     mips64*)
2474         arch="mips"
2475         subarch="mips64"
2476     ;;
2477     parisc|hppa)
2478         arch="parisc"
2479     ;;
2480     parisc64|hppa64)
2481         arch="parisc"
2482         subarch="parisc64"
2483     ;;
2484     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2485         arch="ppc"
2486     ;;
2487     s390|s390x)
2488         arch="s390"
2489     ;;
2490     sh4|sh)
2491         arch="sh4"
2492     ;;
2493     sun4u|sparc64)
2494         arch="sparc"
2495         subarch="sparc64"
2496     ;;
2497     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2498         arch="x86"
2499     ;;
2500 esac
2501
2502 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2503 enable $arch
2504
2505 # Add processor-specific flags
2506 if test "$cpu" = generic; then
2507     : do nothing
2508 elif enabled ppc; then
2509
2510     case $(tolower $cpu) in
2511         601|ppc601|powerpc601)
2512             cpuflags="-mcpu=601"
2513             disable altivec
2514         ;;
2515         603*|ppc603*|powerpc603*)
2516             cpuflags="-mcpu=603"
2517             disable altivec
2518         ;;
2519         604*|ppc604*|powerpc604*)
2520             cpuflags="-mcpu=604"
2521             disable altivec
2522         ;;
2523         g3|75*|ppc75*|powerpc75*)
2524             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2525             disable altivec
2526         ;;
2527         g4|745*|ppc745*|powerpc745*)
2528             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2529         ;;
2530         74*|ppc74*|powerpc74*)
2531             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2532         ;;
2533         g5|970|ppc970|powerpc970)
2534             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2535         ;;
2536         power[3-7]*)
2537             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2538         ;;
2539         cell)
2540             cpuflags="-mcpu=cell"
2541             enable ldbrx
2542         ;;
2543         e500v2)
2544             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2545             disable altivec
2546         ;;
2547         e500)
2548             cpuflags="-mcpu=8540 -mhard-float"
2549             disable altivec
2550         ;;
2551     esac
2552
2553 elif enabled x86; then
2554
2555     case $cpu in
2556         i[345]86|pentium)
2557             cpuflags="-march=$cpu"
2558             disable mmx
2559         ;;
2560         # targets that do NOT support conditional mov (cmov)
2561         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2562             cpuflags="-march=$cpu"
2563             disable cmov
2564         ;;
2565         # targets that do support conditional mov (cmov)
2566         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2567             cpuflags="-march=$cpu"
2568             enable cmov
2569             enable fast_cmov
2570         ;;
2571         # targets that do support conditional mov but on which it's slow
2572         pentium4|pentium4m|prescott|nocona)
2573             cpuflags="-march=$cpu"
2574             enable cmov
2575             disable fast_cmov
2576         ;;
2577     esac
2578
2579 elif enabled sparc; then
2580
2581     case $cpu in
2582         niagara)
2583             cpuflags="-mcpu=$cpu"
2584             disable vis
2585         ;;
2586         sparc64)
2587             cpuflags="-mcpu=v9"
2588         ;;
2589     esac
2590
2591 elif enabled arm; then
2592
2593     case $cpu in
2594         armv*)
2595             cpuflags="-march=$cpu"
2596             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2597         ;;
2598         *)
2599             cpuflags="-mcpu=$cpu"
2600             case $cpu in
2601                 cortex-a*)                               subarch=armv7a  ;;
2602                 cortex-r*)                               subarch=armv7r  ;;
2603                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2604                 arm11*)                                  subarch=armv6   ;;
2605                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2606                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2607             esac
2608         ;;
2609     esac
2610
2611 elif enabled alpha; then
2612
2613     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2614
2615 elif enabled bfin; then
2616
2617     cpuflags="-mcpu=$cpu"
2618
2619 elif enabled mips; then
2620
2621     cpuflags="-march=$cpu"
2622
2623     case $cpu in
2624         24kc)
2625             disable mipsfpu
2626             disable mipsdspr1
2627             disable mipsdspr2
2628         ;;
2629         24kf*)
2630             disable mipsdspr1
2631             disable mipsdspr2
2632         ;;
2633         24kec|34kc|1004kc)
2634             disable mipsfpu
2635             disable mipsdspr2
2636         ;;
2637         24kef*|34kf*|1004kf*)
2638             disable mipsdspr2
2639         ;;
2640         74kc)
2641             disable mipsfpu
2642         ;;
2643     esac
2644
2645 elif enabled avr32; then
2646
2647     case $cpu in
2648         ap7[02]0[0-2])
2649             subarch="avr32_ap"
2650             cpuflags="-mpart=$cpu"
2651         ;;
2652         ap)
2653             subarch="avr32_ap"
2654             cpuflags="-march=$cpu"
2655         ;;
2656         uc3[ab]*)
2657             subarch="avr32_uc"
2658             cpuflags="-mcpu=$cpu"
2659         ;;
2660         uc)
2661             subarch="avr32_uc"
2662             cpuflags="-march=$cpu"
2663         ;;
2664     esac
2665
2666 fi
2667
2668 add_cflags $cpuflags
2669 add_asflags $cpuflags
2670
2671 # compiler sanity check
2672 check_exec <<EOF
2673 int main(void){ return 0; }
2674 EOF
2675 if test "$?" != 0; then
2676     echo "$cc is unable to create an executable file."
2677     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2678         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2679         echo "Only do this if you know what cross compiling means."
2680     fi
2681     die "C compiler test failed."
2682 fi
2683
2684 add_cppflags -D_ISOC99_SOURCE
2685 add_cxxflags -D__STDC_CONSTANT_MACROS
2686 check_cflags -std=c99
2687 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2688 #include <stdlib.h>
2689 EOF
2690 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2691 #include <stdlib.h>
2692 EOF
2693
2694 check_host_cflags -std=c99
2695 check_host_cflags -Wall
2696
2697 case "$arch" in
2698     alpha|ia64|mips|parisc|sparc)
2699         spic=$shared
2700     ;;
2701     x86)
2702         subarch="x86_32"
2703         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2704         if test "$subarch" = "x86_64"; then
2705             spic=$shared
2706         fi
2707     ;;
2708     ppc)
2709         check_cc <<EOF && subarch="ppc64"
2710         int test[(int)sizeof(char*) - 7];
2711 EOF
2712     ;;
2713 esac
2714
2715 enable $subarch
2716 enabled spic && enable pic
2717
2718 # OS specific
2719 case $target_os in
2720     haiku)
2721         prefix_default="/boot/common"
2722         network_extralibs="-lnetwork"
2723         host_libs=
2724         ;;
2725     sunos)
2726         FFSERVERLDFLAGS=""
2727         SHFLAGS='-shared -Wl,-h,$$(@F)'
2728         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2729         network_extralibs="-lsocket -lnsl"
2730         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2731         # When using suncc to build, the Solaris linker will mark
2732         # an executable with each instruction set encountered by
2733         # the Solaris assembler.  As our libraries contain their own
2734         # guards for processor-specific code, instead suppress
2735         # generation of the HWCAPS ELF section on Solaris x86 only.
2736         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2737         nm_opts='-P -g'
2738         ;;
2739     netbsd)
2740         disable symver
2741         oss_indev_extralibs="-lossaudio"
2742         oss_outdev_extralibs="-lossaudio"
2743         ;;
2744     openbsd|bitrig)
2745         # On OpenBSD 4.5. the compiler does not use PIC unless
2746         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2747         # however the generated executable will not do anything
2748         # (simply quits with exit-code 1, no crash, no output).
2749         # Thus explicitly enable PIC here.
2750         enable pic
2751         disable symver
2752         SHFLAGS='-shared'
2753         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2754         oss_indev_extralibs="-lossaudio"
2755         oss_outdev_extralibs="-lossaudio"
2756         ;;
2757     dragonfly)
2758         disable symver
2759         ;;
2760     freebsd)
2761         ;;
2762     bsd/os)
2763         add_extralibs -lpoll -lgnugetopt
2764         strip="strip -d"
2765         ;;
2766     darwin)
2767         gas="gas-preprocessor.pl $cc"
2768         enabled ppc && add_asflags -force_cpusubtype_ALL
2769         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2770         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2771         strip="${strip} -x"
2772         add_ldflags -Wl,-dynamic,-search_paths_first
2773         SLIBSUF=".dylib"
2774         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2775         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2776         FFSERVERLDFLAGS=-Wl,-bind_at_load
2777         objformat="macho"
2778         enabled x86_64 && objformat="macho64"
2779         enabled_any pic shared ||
2780             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2781         ;;
2782     mingw32*)
2783         if test $target_os = "mingw32ce"; then
2784             disable network
2785         else
2786             target_os=mingw32
2787         fi
2788         LIBTARGET=i386
2789         if enabled x86_64; then
2790             LIBTARGET=x64
2791         elif enabled arm; then
2792             LIBTARGET=arm-wince
2793         fi
2794         shlibdir_default="$bindir_default"
2795         SLIBPREF=""
2796         SLIBSUF=".dll"
2797         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2798         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2799         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2800         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2801         SLIB_INSTALL_LINKS=
2802         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2803         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2804         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'
2805         objformat="win32"
2806         enable dos_paths
2807         check_cflags -fno-common
2808         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2809                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2810                 die "ERROR: MinGW runtime version must be >= 3.15."
2811         add_cppflags -U__STRICT_ANSI__
2812         ;;
2813     cygwin*)
2814         target_os=cygwin
2815         shlibdir_default="$bindir_default"
2816         SLIBPREF="cyg"
2817         SLIBSUF=".dll"
2818         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2819         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2820         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2821         objformat="win32"
2822         enable dos_paths
2823         check_cflags -fno-common
2824         add_cppflags -U__STRICT_ANSI__
2825         ;;
2826     *-dos|freedos|opendos)
2827         network_extralibs="-lsocket"
2828         objformat="coff"
2829         enable dos_paths
2830         add_cppflags -U__STRICT_ANSI__
2831         ;;
2832     linux)
2833         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2834         enable dv1394
2835         ;;
2836     irix*)
2837         target_os=irix
2838         ranlib="echo ignoring ranlib"
2839         ;;
2840     os/2*)
2841         strip="lxlite -CS"
2842         ln_s="cp -f"
2843         objformat="aout"
2844         add_cppflags -D_GNU_SOURCE
2845         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2846         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2847         FFSERVERLDFLAGS=""
2848         LIBSUF="_s.a"
2849         SLIBPREF=""
2850         SLIBSUF=".dll"
2851         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2852         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2853         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2854           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2855           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2856           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2857           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2858           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2859         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2860           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2861         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2862         enable dos_paths
2863         enable_weak os2threads
2864         ;;
2865     gnu/kfreebsd)
2866         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2867         ;;
2868     gnu)
2869         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2870         ;;
2871     qnx)
2872         add_cppflags -D_QNX_SOURCE
2873         network_extralibs="-lsocket"
2874         ;;
2875     symbian)
2876         SLIBSUF=".dll"
2877         enable dos_paths
2878         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2879         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2880         add_ldflags -Wl,--target1-abs,--no-undefined \
2881                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2882                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2883         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2884                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2885                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2886         ;;
2887     none)
2888         ;;
2889     *)
2890         die "Unknown OS '$target_os'."
2891         ;;
2892 esac
2893
2894 esc(){
2895     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2896 }
2897
2898 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2899
2900 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2901
2902 set_default $PATHS_LIST
2903
2904 # we need to build at least one lib type
2905 if ! enabled_any static shared; then
2906     cat <<EOF
2907 At least one library type must be built.
2908 Specify --enable-static to build the static libraries or --enable-shared to
2909 build the shared libraries as well. To only build the shared libraries specify
2910 --disable-static in addition to --enable-shared.
2911 EOF
2912     exit 1;
2913 fi
2914
2915 die_license_disabled() {
2916     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2917 }
2918
2919 die_license_disabled_gpl() {
2920     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2921 }
2922
2923 die_license_disabled gpl libcdio
2924 die_license_disabled gpl libutvideo
2925 die_license_disabled gpl libx264
2926 die_license_disabled gpl libxavs
2927 die_license_disabled gpl libxvid
2928 die_license_disabled gpl x11grab
2929
2930 die_license_disabled nonfree libaacplus
2931 die_license_disabled nonfree libfaac
2932 enabled gpl && die_license_disabled_gpl nonfree openssl
2933 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
2934
2935 die_license_disabled version3 libopencore_amrnb
2936 die_license_disabled version3 libopencore_amrwb
2937 die_license_disabled version3 libvo_aacenc
2938 die_license_disabled version3 libvo_amrwbenc
2939
2940 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2941
2942 disabled optimizations || check_cflags -fomit-frame-pointer
2943
2944 enable_pic() {
2945     enable pic
2946     add_cppflags -DPIC
2947     add_cflags   -fPIC
2948     add_asflags  -fPIC
2949 }
2950
2951 enabled pic && enable_pic
2952
2953 check_cc <<EOF || die "Symbol mangling check failed."
2954 int ff_extern;
2955 EOF
2956 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2957 extern_prefix=${sym%%ff_extern*}
2958
2959 check_cc <<EOF && enable inline_asm
2960 void foo(void) { __asm__ volatile ("" ::); }
2961 EOF
2962
2963 _restrict=
2964 for restrict_keyword in restrict __restrict__ __restrict; do
2965     check_cc <<EOF && _restrict=$restrict_keyword && break
2966 void foo(char * $restrict_keyword p);
2967 EOF
2968 done
2969
2970 check_cc <<EOF && enable attribute_packed
2971 struct { int x; } __attribute__((packed)) x;
2972 EOF
2973
2974 check_cc <<EOF && enable attribute_may_alias
2975 union { int x; } __attribute__((may_alias)) x;
2976 EOF
2977
2978 check_cc <<EOF || die "endian test failed"
2979 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2980 EOF
2981 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2982
2983 if enabled alpha; then
2984
2985     check_cflags -mieee
2986
2987 elif enabled arm; then
2988
2989     enabled thumb && check_cflags -mthumb || check_cflags -marm
2990     nogas=die
2991
2992     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2993         enable vfp_args
2994     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2995         case "${cross_prefix:-$cc}" in
2996             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2997             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2998 __asm__ (".eabi_attribute 28, 1");
2999 int main(void) { return 0; }
3000 EOF
3001         esac
3002         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3003     fi
3004
3005     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
3006     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
3007     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
3008     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
3009     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
3010     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
3011
3012     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3013
3014     enabled_all armv6t2 shared !pic && enable_pic
3015
3016 elif enabled mips; then
3017
3018     check_asm loongson '"dmult.g $1, $2, $3"'
3019     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
3020     enabled mips32r2  && add_cflags "-mips32r2" &&
3021      check_asm mips32r2  '"rotr $t0, $t1, 1"'
3022     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3023      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3024     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3025      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3026     enabled mipsfpu   && add_cflags "-mhard-float" &&
3027      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3028
3029
3030 elif enabled ppc; then
3031
3032     enable local_aligned_8 local_aligned_16
3033
3034     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3035     check_asm ibm_asm   '"add 0, 0, 0"'
3036     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3037     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3038
3039     # AltiVec flags: The FSF version of GCC differs from the Apple version
3040     if enabled altivec; then
3041         nogas=warn
3042         check_cflags -maltivec -mabi=altivec &&
3043         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3044         check_cflags -faltivec
3045
3046         # check if our compiler supports Motorola AltiVec C API
3047         check_cc <<EOF || disable altivec
3048 $inc_altivec_h
3049 int main(void) {
3050     vector signed int v1, v2, v3;
3051     v1 = vec_add(v2,v3);
3052     return 0;
3053 }
3054 EOF
3055
3056         # check if our compiler supports braces for vector declarations
3057         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3058 $inc_altivec_h
3059 int main (void) { (vector int) {1}; return 0; }
3060 EOF
3061     fi
3062
3063 elif enabled sparc; then
3064
3065     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3066         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3067
3068 elif enabled x86; then
3069
3070     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3071     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3072     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3073     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3074
3075     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3076
3077     enable local_aligned_8 local_aligned_16
3078
3079     # check whether EBP is available on x86
3080     # As 'i' is stored on the stack, this program will crash
3081     # if the base pointer is used to access it because the
3082     # base pointer is cleared in the inline assembly code.
3083     check_exec_crash <<EOF && enable ebp_available
3084     volatile int i=0;
3085     __asm__ volatile (
3086         "xorl %%ebp, %%ebp"
3087     ::: "%ebp");
3088     return i;
3089 EOF
3090
3091     # check whether EBX is available on x86
3092     check_asm ebx_available '""::"b"(0)' &&
3093         check_asm ebx_available '"":::"%ebx"'
3094
3095     # check whether xmm clobbers are supported
3096     check_asm xmm_clobbers '"":::"%xmm0"'
3097
3098     # check whether binutils is new enough to compile SSSE3/MMX2
3099     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3100     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3101
3102     if ! disabled_any asm mmx yasm; then
3103         if check_cmd $yasmexe --version; then
3104             enabled x86_64 && yasm_extra="-m amd64"
3105             yasm_debug="-g dwarf2"
3106         elif check_cmd nasm -v; then
3107             yasmexe=nasm
3108             yasm_debug="-g -F dwarf"
3109             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3110         fi
3111
3112         YASMFLAGS="-f $objformat $yasm_extra"
3113         enabled pic               && append YASMFLAGS "-DPIC"
3114         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3115         case "$objformat" in
3116             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3117         esac
3118
3119         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3120             die "yasm not found, use --disable-yasm for a crippled build"
3121         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3122     fi
3123
3124     case "$cpu" in
3125         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3126             disable fast_clz
3127         ;;
3128     esac
3129
3130 fi
3131
3132 if enabled asm; then
3133     as=${gas:=$as}
3134     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3135         $nogas "GNU assembler not found, install gas-preprocessor"
3136 fi
3137
3138 check_ldflags -Wl,--as-needed
3139
3140 if check_func dlopen; then
3141     ldl=
3142 elif check_func dlopen -ldl; then
3143     ldl=-ldl
3144 fi
3145
3146 if enabled network; then
3147     check_type "sys/types.h sys/socket.h" socklen_t
3148     check_type netdb.h "struct addrinfo"
3149     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3150     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3151     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3152     check_type netinet/in.h "struct sockaddr_in6"
3153     check_type poll.h "struct pollfd"
3154     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3155     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3156     check_header netinet/sctp.h
3157     check_func getaddrinfo $network_extralibs
3158     # Prefer arpa/inet.h over winsock2
3159     if check_header arpa/inet.h ; then
3160         check_func closesocket
3161     elif check_header winsock2.h ; then
3162         check_func_headers winsock2.h closesocket -lws2 && \
3163             network_extralibs="-lws2" || \
3164         { check_func_headers winsock2.h closesocket -lws2_32 && \
3165             network_extralibs="-lws2_32"; }
3166         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3167         check_type ws2tcpip.h socklen_t
3168         check_type ws2tcpip.h "struct addrinfo"
3169         check_type ws2tcpip.h "struct group_source_req"
3170         check_type ws2tcpip.h "struct ip_mreq_source"
3171         check_type ws2tcpip.h "struct ipv6_mreq"
3172         check_type winsock2.h "struct pollfd"
3173         check_type ws2tcpip.h "struct sockaddr_in6"
3174         check_type ws2tcpip.h "struct sockaddr_storage"
3175         check_struct winsock2.h "struct sockaddr" sa_len
3176     else
3177         disable network
3178     fi
3179 fi
3180
3181 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3182 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3183
3184 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3185 check_func  fcntl
3186 check_func  fork
3187 check_func  gethrtime
3188 check_func  getopt
3189 check_func  getrusage
3190 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3191 check_func  gettimeofday
3192 check_func  inet_aton $network_extralibs
3193 check_func  isatty
3194 check_func  localtime_r
3195 check_func  ${malloc_prefix}memalign            && enable memalign
3196 check_func  mkstemp
3197 check_func  mmap
3198 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3199 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3200 check_func  setrlimit
3201 check_func  strerror_r
3202 check_func  strptime
3203 check_func  sched_getaffinity
3204 check_func  sysconf
3205 check_func  sysctl
3206 check_func  usleep
3207 check_func_headers conio.h kbhit
3208 check_func_headers windows.h PeekNamedPipe
3209 check_func_headers io.h setmode
3210 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3211 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3212 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3213 check_func_headers windows.h GetProcessAffinityMask
3214 check_func_headers windows.h GetProcessTimes
3215 check_func_headers windows.h GetSystemTimeAsFileTime
3216 check_func_headers windows.h MapViewOfFile
3217 check_func_headers windows.h Sleep
3218 check_func_headers windows.h VirtualAlloc
3219 check_func_headers glob.h glob
3220
3221 check_header dlfcn.h
3222 check_header dxva.h
3223 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3224 check_header libcrystalhd/libcrystalhd_if.h
3225 check_header malloc.h
3226 check_header poll.h
3227 check_header sys/mman.h
3228 check_header sys/param.h
3229 check_header sys/resource.h
3230 check_header sys/select.h
3231 check_header sys/time.h
3232 check_header termios.h
3233 check_header unistd.h
3234 check_header vdpau/vdpau.h
3235 check_header vdpau/vdpau_x11.h
3236 check_header windows.h
3237 check_header X11/extensions/XvMClib.h
3238 check_header asm/types.h
3239
3240 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3241 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3242
3243 # check for VDA header
3244 if ! disabled vda; then
3245     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3246         enable vda
3247         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3248     fi
3249 fi
3250
3251 if ! disabled w32threads && ! enabled pthreads; then
3252     check_func _beginthreadex && enable w32threads
3253 fi
3254
3255 # check for some common methods of building with pthread support
3256 # do this before the optional library checks as some of them require pthreads
3257 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3258     enable pthreads
3259     if check_func pthread_create; then
3260         :
3261     elif check_func pthread_create -pthread; then
3262         add_cflags -pthread
3263         add_extralibs -pthread
3264     elif check_func pthread_create -pthreads; then
3265         add_cflags -pthreads
3266         add_extralibs -pthreads
3267     elif check_func pthread_create -lpthreadGC2; then
3268         add_extralibs -lpthreadGC2
3269     elif ! check_lib pthread.h pthread_create -lpthread; then
3270         disable pthreads
3271     fi
3272 fi
3273
3274 for thread in $THREADS_LIST; do
3275     if enabled $thread; then
3276         test -n "$thread_type" &&
3277             die "ERROR: Only one thread type must be selected." ||
3278             thread_type="$thread"
3279     fi
3280 done
3281
3282 if enabled pthreads; then
3283   check_func pthread_cancel
3284 fi
3285
3286 check_lib math.h sin -lm && LIBM="-lm"
3287 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3288 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3289
3290 check_mathfunc cbrtf
3291 check_mathfunc exp2
3292 check_mathfunc exp2f
3293 check_mathfunc isinf
3294 check_mathfunc isnan
3295 check_mathfunc llrint
3296 check_mathfunc llrintf
3297 check_mathfunc log2
3298 check_mathfunc log2f
3299 check_mathfunc lrint
3300 check_mathfunc lrintf
3301 check_mathfunc rint
3302 check_mathfunc round
3303 check_mathfunc roundf
3304 check_mathfunc trunc
3305 check_mathfunc truncf
3306
3307 # these are off by default, so fail if requested and not available
3308 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3309 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3310 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3311 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3312 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3313 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3314 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3315 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3316 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3317                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3318                         die "ERROR: libcelt version must be >= 0.11.0."; }
3319 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3320 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3321 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3322 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3323 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3324 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3325 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3326 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3327 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3328 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3329 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3330 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3331 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3332 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3333 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3334 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3335 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3336     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3337     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3338 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3339 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3340 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3341 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3342 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3343 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3344 enabled libvpx     && {
3345     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3346                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3347     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3348                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3349 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3350                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3351                         die "ERROR: libx264 version must be >= 0.118."; }
3352 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3353 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3354 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3355                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3356                         die "ERROR: openal not found"; } &&
3357                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3358                         die "ERROR: openal version must be 1.1 or compatible"; }
3359 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3360                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3361                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3362                         die "ERROR: openssl not found"; }
3363
3364 # libdc1394 check
3365 if enabled libdc1394; then
3366     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3367         enable libdc1394_2; } ||
3368     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3369         enable libdc1394_1; } ||
3370     die "ERROR: No version of libdc1394 found "
3371 fi
3372
3373 SDL_CONFIG="${cross_prefix}sdl-config"
3374 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3375     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3376     enable sdl &&
3377     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3378 else
3379   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3380     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3381     sdl_libs=$("${SDL_CONFIG}" --libs)
3382     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3383     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3384     enable sdl &&
3385     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3386   fi
3387 fi
3388 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3389
3390 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3391 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3392 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3393
3394 check_header linux/fb.h
3395 check_header linux/videodev.h
3396 check_header linux/videodev2.h
3397 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3398
3399 check_header sys/videoio.h
3400
3401 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3402 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3403 # w32api 3.12 had it defined wrong
3404 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3405
3406 check_type "dshow.h" IBaseFilter
3407
3408 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3409 { check_header dev/bktr/ioctl_meteor.h &&
3410   check_header dev/bktr/ioctl_bt848.h; } ||
3411 { check_header machine/ioctl_meteor.h &&
3412   check_header machine/ioctl_bt848.h; } ||
3413 { check_header dev/video/meteor/ioctl_meteor.h &&
3414   check_header dev/video/bktr/ioctl_bt848.h; } ||
3415 check_header dev/ic/bt8xx.h
3416
3417 check_header sndio.h
3418 if check_struct sys/soundcard.h audio_buf_info bytes; then
3419     enable_safe sys/soundcard.h
3420 else
3421     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3422     #include <sys/soundcard.h>
3423     audio_buf_info abc;
3424 EOF
3425 fi
3426 check_header soundcard.h
3427
3428 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3429
3430 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3431     check_func jack_port_get_latency_range -ljack
3432
3433 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3434
3435 enabled libcdio &&
3436     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3437
3438 enabled x11grab                                           &&
3439 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3440 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3441 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3442
3443 if ! disabled vaapi; then
3444     check_lib va/va.h vaInitialize -lva && {
3445         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3446         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3447     } || disable vaapi
3448 fi
3449
3450 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3451 check_cpp_condition \
3452     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3453     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3454       disable vdpau; }
3455 fi
3456
3457 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3458 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3459 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"
3460
3461 # add some useful compiler flags if supported
3462 check_cflags -Wdeclaration-after-statement
3463 check_cflags -Wall
3464 check_cflags -Wno-parentheses
3465 check_cflags -Wno-switch
3466 check_cflags -Wno-format-zero-length
3467 check_cflags -Wdisabled-optimization
3468 check_cflags -Wpointer-arith
3469 check_cflags -Wredundant-decls
3470 check_cflags -Wno-pointer-sign
3471 check_cflags -Wwrite-strings
3472 check_cflags -Wtype-limits
3473 check_cflags -Wundef
3474 check_cflags -Wmissing-prototypes
3475 check_cflags -Wno-pointer-to-int-cast
3476 check_cflags -Wstrict-prototypes
3477 enabled extra_warnings && check_cflags -Winline
3478
3479 # add some linker flags
3480 check_ldflags -Wl,--warn-common
3481 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3482 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3483
3484 enabled xmm_clobber_test &&                             \
3485     check_ldflags -Wl,--wrap,avcodec_open2              \
3486                   -Wl,--wrap,avcodec_decode_audio4      \
3487                   -Wl,--wrap,avcodec_decode_video2      \
3488                   -Wl,--wrap,avcodec_decode_subtitle2   \
3489                   -Wl,--wrap,avcodec_encode_audio2      \
3490                   -Wl,--wrap,avcodec_encode_video       \
3491                   -Wl,--wrap,avcodec_encode_subtitle    \
3492                   -Wl,--wrap,sws_scale ||               \
3493     disable xmm_clobber_test
3494
3495 echo "X{};" > $TMPV
3496 if test_ldflags -Wl,--version-script,$TMPV; then
3497     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3498     check_cc <<EOF && enable symver_asm_label
3499 void ff_foo(void) __asm__ ("av_foo@VERSION");
3500 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3501 EOF
3502     check_cc <<EOF && enable symver_gnu_asm
3503 __asm__(".symver ff_foo,av_foo@VERSION");
3504 void ff_foo(void) {}
3505 EOF
3506 fi
3507
3508 if [ -n "$optflags" ]; then
3509     add_cflags $optflags
3510 elif enabled small; then
3511     add_cflags $size_cflags
3512 elif enabled optimizations; then
3513     add_cflags $speed_cflags
3514 else
3515     add_cflags $noopt_cflags
3516 fi
3517 check_cflags -fno-math-errno
3518 check_cflags -fno-signed-zeros
3519 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3520 int x;
3521 EOF
3522
3523
3524 if enabled icc; then
3525     # Just warnings, no remarks
3526     check_cflags -w1
3527     # -wd: Disable following warnings
3528     # 144, 167, 556: -Wno-pointer-sign
3529     # 1292: attribute "foo" ignored
3530     # 1419: external declaration in primary source file
3531     # 10006: ignoring unknown option -fno-signed-zeros
3532     # 10148: ignoring unknown option -Wno-parentheses
3533     # 10156: ignoring option '-W'; no argument required
3534     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3535     # 11030: Warning unknown option --as-needed
3536     # 10156: ignoring option '-export'; no argument required
3537     check_ldflags -wd10156,11030
3538     # Allow to compile with optimizations
3539     check_ldflags -march=$cpu
3540     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3541     enable ebp_available
3542     if enabled x86_32; then
3543         test ${icc_version%%.*} -ge 11 && \
3544             check_cflags -falign-stack=maintain-16-byte || \
3545             disable aligned_stack
3546     fi
3547 elif enabled ccc; then
3548     # disable some annoying warnings
3549     add_cflags -msg_disable cvtu32to64
3550     add_cflags -msg_disable embedcomment
3551     add_cflags -msg_disable needconstext
3552     add_cflags -msg_disable nomainieee
3553     add_cflags -msg_disable ptrmismatch1
3554     add_cflags -msg_disable unreachcode
3555 elif enabled gcc; then
3556     check_cflags -fno-tree-vectorize
3557     check_cflags -Werror=implicit-function-declaration
3558     check_cflags -Werror=missing-prototypes
3559 elif enabled llvm_gcc; then
3560     check_cflags -mllvm -stack-alignment=16
3561 elif enabled clang; then
3562     check_cflags -mllvm -stack-alignment=16
3563     check_cflags -Qunused-arguments
3564 elif enabled armcc; then
3565     # 2523: use of inline assembler is deprecated
3566     add_cflags -W${armcc_opt},--diag_suppress=2523
3567     add_cflags -W${armcc_opt},--diag_suppress=1207
3568     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3569     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3570     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3571     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3572 elif enabled tms470; then
3573     add_cflags -pds=824 -pds=837
3574 elif enabled pathscale; then
3575     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3576 fi
3577
3578 enabled_any $THREADS_LIST      && enable threads
3579
3580 check_deps $CONFIG_LIST       \
3581            $CONFIG_EXTRA      \
3582            $HAVE_LIST         \
3583            $ALL_COMPONENTS    \
3584            $ALL_TESTS         \
3585
3586 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3587
3588 if test $target_os = "haiku"; then
3589     disable memalign
3590     disable posix_memalign
3591 fi
3592
3593 ! enabled_any memalign posix_memalign aligned_malloc &&
3594     enabled_any $need_memalign && enable memalign_hack
3595
3596 # add_dep lib dep
3597 # -> enable ${lib}_deps_${dep}
3598 # -> add $dep to ${lib}_deps only once
3599 add_dep() {
3600     lib=$1
3601     dep=$2
3602     enabled "${lib}_deps_${dep}" && return 0
3603     enable  "${lib}_deps_${dep}"
3604     prepend "${lib}_deps" $dep
3605 }
3606
3607 # merge deps lib components
3608 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3609 merge_deps() {
3610     lib=$1
3611     shift
3612     for comp in $*; do
3613         enabled $comp || continue
3614         eval "dep=\"\$${comp}_deps\""
3615         for d in $dep; do
3616             add_dep $lib $d
3617         done
3618     done
3619 }
3620
3621 merge_deps libavfilter $FILTER_LIST
3622
3623 echo "install prefix            $prefix"
3624 echo "source path               $source_path"
3625 echo "C compiler                $cc"
3626 echo "ARCH                      $arch ($cpu)"
3627 if test "$build_suffix" != ""; then
3628     echo "build suffix              $build_suffix"
3629 fi
3630 if test "$progs_suffix" != ""; then
3631     echo "progs suffix              $progs_suffix"
3632 fi
3633 if test "$extra_version" != ""; then
3634     echo "version string suffix     $extra_version"
3635 fi
3636 echo "big-endian                ${bigendian-no}"
3637 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3638 if enabled x86; then
3639     echo "${yasmexe}                      ${yasm-no}"
3640     echo "MMX enabled               ${mmx-no}"
3641     echo "MMX2 enabled              ${mmx2-no}"
3642     echo "3DNow! enabled            ${amd3dnow-no}"
3643     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3644     echo "SSE enabled               ${sse-no}"
3645     echo "SSSE3 enabled             ${ssse3-no}"
3646     echo "AVX enabled               ${avx-no}"
3647     echo "CMOV enabled              ${cmov-no}"
3648     echo "CMOV is fast              ${fast_cmov-no}"
3649     echo "EBX available             ${ebx_available-no}"
3650     echo "EBP available             ${ebp_available-no}"
3651 fi
3652 if enabled arm; then
3653     echo "ARMv5TE enabled           ${armv5te-no}"
3654     echo "ARMv6 enabled             ${armv6-no}"
3655     echo "ARMv6T2 enabled           ${armv6t2-no}"
3656     echo "ARM VFP enabled           ${armvfp-no}"
3657     echo "NEON enabled              ${neon-no}"
3658 fi
3659 if enabled mips; then
3660     echo "MMI enabled               ${mmi-no}"
3661     echo "MIPS FPU enabled          ${mipsfpu-no}"
3662     echo "MIPS32R2 enabled          ${mips32r2-no}"
3663     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3664     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3665 fi
3666 if enabled ppc; then
3667     echo "AltiVec enabled           ${altivec-no}"
3668     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3669     echo "dcbzl available           ${dcbzl-no}"
3670 fi
3671 if enabled sparc; then
3672     echo "VIS enabled               ${vis-no}"
3673 fi
3674 echo "debug symbols             ${debug-no}"
3675 echo "strip symbols             ${stripping-no}"
3676 echo "optimize for size         ${small-no}"
3677 echo "optimizations             ${optimizations-no}"
3678 echo "static                    ${static-no}"
3679 echo "shared                    ${shared-no}"
3680 echo "postprocessing support    ${postproc-no}"
3681 echo "new filter support        ${avfilter-no}"
3682 echo "network support           ${network-no}"
3683 echo "threading support         ${thread_type-no}"
3684 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3685 echo "SDL support               ${sdl-no}"
3686 echo "libdxva2 enabled          ${dxva2-no}"
3687 echo "libva enabled             ${vaapi-no}"
3688 echo "libvdpau enabled          ${vdpau-no}"
3689 echo "AVISynth enabled          ${avisynth-no}"
3690 echo "frei0r enabled            ${frei0r-no}"
3691 echo "gnutls enabled            ${gnutls-no}"
3692 echo "libaacplus enabled        ${libaacplus-no}"
3693 echo "libass enabled            ${libass-no}"
3694 echo "libcdio support           ${libcdio-no}"
3695 echo "libcelt enabled           ${libcelt-no}"
3696 echo "libdc1394 support         ${libdc1394-no}"
3697 echo "libfaac enabled           ${libfaac-no}"
3698 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3699 echo "libgsm enabled            ${libgsm-no}"
3700 echo "libiec61883 support       ${libiec61883-no}"
3701 echo "libilbc enabled           ${libilbc-no}"
3702 echo "libmodplug enabled        ${libmodplug-no}"
3703 echo "libmp3lame enabled        ${libmp3lame-no}"
3704 echo "libnut enabled            ${libnut-no}"
3705 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3706 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3707 echo "libopencv support         ${libopencv-no}"
3708 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3709 echo "libpulse enabled          ${libpulse-no}"
3710 echo "librtmp enabled           ${librtmp-no}"
3711 echo "libschroedinger enabled   ${libschroedinger-no}"
3712 echo "libspeex enabled          ${libspeex-no}"
3713 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3714 echo "libtheora enabled         ${libtheora-no}"
3715 echo "libutvideo enabled        ${libutvideo-no}"
3716 echo "libv4l2 enabled           ${libv4l2-no}"
3717 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3718 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3719 echo "libvorbis enabled         ${libvorbis-no}"
3720 echo "libvpx enabled            ${libvpx-no}"
3721 echo "libx264 enabled           ${libx264-no}"
3722 echo "libxavs enabled           ${libxavs-no}"
3723 echo "libxvid enabled           ${libxvid-no}"
3724 echo "openal enabled            ${openal-no}"
3725 echo "openssl enabled           ${openssl-no}"
3726 echo "zlib enabled              ${zlib-no}"
3727 echo "bzlib enabled             ${bzlib-no}"
3728 echo "texi2html enabled         ${texi2html-no}"
3729 echo "pod2man enabled           ${pod2man-no}"
3730 echo "makeinfo enabled          ${makeinfo-no}"
3731 test -n "$random_seed" &&
3732     echo "random seed               ${random_seed}"
3733 echo
3734
3735 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3736     echo "Enabled ${type}s:"
3737     eval list=\$$(toupper $type)_LIST
3738     print_enabled '_*' $list | sort | pr -r -3 -t
3739     echo
3740 done
3741
3742 license="LGPL version 2.1 or later"
3743 if enabled nonfree; then
3744     license="nonfree and unredistributable"
3745 elif enabled gplv3; then
3746     license="GPL version 3 or later"
3747 elif enabled lgplv3; then
3748     license="LGPL version 3 or later"
3749 elif enabled gpl; then
3750     license="GPL version 2 or later"
3751 fi
3752
3753 echo "License: $license"
3754
3755 echo "Creating config.mak and config.h..."
3756
3757 test -e Makefile || $ln_s "$source_path/Makefile" .
3758
3759 enabled stripping || strip="echo skipping strip"
3760
3761 config_files="$TMPH config.mak"
3762
3763 cat > config.mak <<EOF
3764 # Automatically generated by configure - do not modify!
3765 ifndef FFMPEG_CONFIG_MAK
3766 FFMPEG_CONFIG_MAK=1
3767 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3768 prefix=$prefix
3769 LIBDIR=\$(DESTDIR)$libdir
3770 SHLIBDIR=\$(DESTDIR)$shlibdir
3771 INCDIR=\$(DESTDIR)$incdir
3772 BINDIR=\$(DESTDIR)$bindir
3773 DATADIR=\$(DESTDIR)$datadir
3774 MANDIR=\$(DESTDIR)$mandir
3775 SRC_PATH=$source_path
3776 ifndef MAIN_MAKEFILE
3777 SRC_PATH:=\$(SRC_PATH:.%=..%)
3778 endif
3779 CC_IDENT=$cc_ident
3780 ARCH=$arch
3781 CC=$cc
3782 CXX=$cxx
3783 AS=$as
3784 LD=$ld
3785 DEPCC=$dep_cc
3786 YASM=$yasmexe
3787 YASMDEP=$yasmexe
3788 AR=$ar
3789 RANLIB=$ranlib
3790 CP=cp -p
3791 LN_S=$ln_s
3792 STRIP=$strip
3793 CPPFLAGS=$CPPFLAGS
3794 CFLAGS=$CFLAGS
3795 CXXFLAGS=$CXXFLAGS
3796 ASFLAGS=$ASFLAGS
3797 AS_O=$CC_O
3798 CC_O=$CC_O
3799 CXX_O=$CXX_O
3800 LDFLAGS=$LDFLAGS
3801 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3802 SHFLAGS=$SHFLAGS
3803 YASMFLAGS=$YASMFLAGS
3804 BUILDSUF=$build_suffix
3805 PROGSSUF=$progs_suffix
3806 FULLNAME=$FULLNAME
3807 LIBPREF=$LIBPREF
3808 LIBSUF=$LIBSUF
3809 LIBNAME=$LIBNAME
3810 SLIBPREF=$SLIBPREF
3811 SLIBSUF=$SLIBSUF
3812 EXESUF=$EXESUF
3813 EXTRA_VERSION=$extra_version
3814 DEPFLAGS=$DEPFLAGS
3815 CCDEP=$CCDEP
3816 CXXDEP=$CXXDEP
3817 ASDEP=$ASDEP
3818 CC_DEPFLAGS=$CC_DEPFLAGS
3819 AS_DEPFLAGS=$AS_DEPFLAGS
3820 HOSTCC=$host_cc
3821 HOSTCFLAGS=$host_cflags
3822 HOSTEXESUF=$HOSTEXESUF
3823 HOSTLDFLAGS=$host_ldflags
3824 HOSTLIBS=$host_libs
3825 TARGET_EXEC=$target_exec
3826 TARGET_PATH=$target_path
3827 SDL_LIBS=$sdl_libs
3828 SDL_CFLAGS=$sdl_cflags
3829 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3830 EXTRALIBS=$extralibs
3831 INSTALL=$install
3832 LIBTARGET=${LIBTARGET}
3833 SLIBNAME=${SLIBNAME}
3834 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3835 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3836 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3837 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3838 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3839 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3840 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3841 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3842 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3843 NOREDZONE_FLAGS=$noredzone_flags
3844 EOF
3845
3846 get_version(){
3847     lcname=$1
3848     name=$(toupper $lcname)
3849     file=$source_path/$lcname/version.h
3850     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3851     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3852     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3853     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3854 }
3855
3856 get_version_old(){
3857     name=$1
3858     file=$source_path/$2
3859 # This condition will be removed when we stop supporting old libpostproc versions
3860 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3861     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3862     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3863 fi
3864     lcname=$(tolower $name)
3865     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3866     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3867 }
3868
3869 get_version_old LIBPOSTPROC libpostproc/postprocess.h
3870 get_version_old LIBSWRESAMPLE libswresample/swresample.h
3871
3872 get_version libavcodec
3873 get_version libavdevice
3874 get_version libavfilter
3875 get_version libavformat
3876 get_version libavresample
3877 get_version libavutil
3878 get_version libswscale
3879
3880 cat > $TMPH <<EOF
3881 /* Automatically generated by configure - do not modify! */
3882 #ifndef FFMPEG_CONFIG_H
3883 #define FFMPEG_CONFIG_H
3884 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3885 #define FFMPEG_LICENSE "$(c_escape $license)"
3886 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3887 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3888 #define CC_TYPE "$cc_type"
3889 #define CC_VERSION $cc_version
3890 #define av_restrict $_restrict
3891 #define EXTERN_PREFIX "${extern_prefix}"
3892 #define EXTERN_ASM ${extern_prefix}
3893 #define SLIBSUF "$SLIBSUF"
3894 EOF
3895
3896 test -n "$assert_level" &&
3897     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3898
3899 test -n "$malloc_prefix" &&
3900     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3901
3902 if enabled yasm; then
3903     append config_files $TMPASM
3904     printf '' >$TMPASM
3905 fi
3906
3907 print_config ARCH_   "$config_files" $ARCH_LIST
3908 print_config HAVE_   "$config_files" $HAVE_LIST
3909 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3910                                      $CONFIG_EXTRA      \
3911                                      $ALL_COMPONENTS    \
3912
3913 cat >>config.mak <<EOF
3914 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3915 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3916 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3917 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3918 EOF
3919
3920 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3921 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3922
3923 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3924 cp_if_changed $TMPH config.h
3925 touch .config
3926
3927 enabled yasm && cp_if_changed $TMPASM config.asm
3928
3929 cat > $TMPH <<EOF
3930 /* Generated by ffconf */
3931 #ifndef AVUTIL_AVCONFIG_H
3932 #define AVUTIL_AVCONFIG_H
3933 EOF
3934
3935 test "$postproc_version" != current && cat >> $TMPH <<EOF
3936 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3937 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3938 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3939 EOF
3940
3941 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3942
3943 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3944
3945 cp_if_changed $TMPH libavutil/avconfig.h
3946
3947 test -n "$WARNINGS" && printf "\n$WARNINGS"
3948
3949 # build pkg-config files
3950
3951 pkgconfig_generate(){
3952 name=$1
3953 shortname=${name#lib}${build_suffix}
3954 comment=$2
3955 version=$3
3956 libs=$4
3957 requires=$5
3958 enabled ${name#lib} || return 0
3959 mkdir -p $name
3960 cat <<EOF > $name/$name.pc
3961 prefix=$prefix
3962 exec_prefix=\${prefix}
3963 libdir=$libdir
3964 includedir=$incdir
3965
3966 Name: $name
3967 Description: $comment
3968 Version: $version
3969 Requires: $(enabled shared || echo $requires)
3970 Requires.private: $(enabled shared && echo $requires)
3971 Conflicts:
3972 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3973 Libs.private: $(enabled shared && echo $libs)
3974 Cflags: -I\${includedir}
3975 EOF
3976
3977 mkdir -p doc/examples/pc-uninstalled
3978 includedir=${source_path}
3979 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
3980 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
3981 prefix=
3982 exec_prefix=
3983 libdir=\${pcfiledir}/../../../$name
3984 includedir=${includedir}
3985
3986 Name: $name
3987 Description: $comment
3988 Version: $version
3989 Requires: $requires
3990 Conflicts:
3991 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3992 Cflags: -I\${includedir}
3993 EOF
3994 }
3995
3996 libavfilter_pc_deps=""
3997 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
3998 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
3999 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4000 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4001 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4002 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4003
4004 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4005 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4006
4007 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4008 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4009 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4010 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4011 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4012 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4013 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4014 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4015 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"