Revert "ffmpeg: set pkt_timebase"
[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 libavfilter build
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 AAC encoding via libfaac [no]
181   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
182   --enable-libfreetype     enable libfreetype [no]
183   --enable-libgsm          enable GSM de/encoding 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 de/encoding 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 de/encoding via libschroedinger [no]
197   --enable-libspeex        enable Speex de/encoding 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 de/encoding 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     vp3dsp
1331 "
1332
1333 CMDLINE_SELECT="
1334     $ARCH_EXT_LIST
1335     $CONFIG_LIST
1336     $THREADS_LIST
1337     asm
1338     coverage
1339     cross_compile
1340     debug
1341     extra_warnings
1342     logging
1343     optimizations
1344     stripping
1345     symver
1346     yasm
1347 "
1348
1349 PATHS_LIST='
1350     bindir
1351     datadir
1352     incdir
1353     libdir
1354     mandir
1355     prefix
1356     shlibdir
1357 '
1358
1359 CMDLINE_SET="
1360     $PATHS_LIST
1361     ar
1362     arch
1363     as
1364     assert_level
1365     build_suffix
1366     cc
1367     cpu
1368     cross_prefix
1369     cxx
1370     dep_cc
1371     extra_version
1372     host_cc
1373     host_cflags
1374     host_ldflags
1375     host_libs
1376     host_os
1377     install
1378     ld
1379     logfile
1380     malloc_prefix
1381     nm
1382     optflags
1383     pkg_config
1384     postproc_version
1385     progs_suffix
1386     random_seed
1387     samples
1388     strip
1389     sysinclude
1390     sysroot
1391     target_exec
1392     target_os
1393     target_path
1394     valgrind
1395     yasmexe
1396 "
1397
1398 CMDLINE_APPEND="
1399     extra_cflags
1400     extra_cxxflags
1401 "
1402
1403 # code dependency declarations
1404
1405 # architecture extensions
1406
1407 armv5te_deps="arm"
1408 armv6_deps="arm"
1409 armv6t2_deps="arm"
1410 armvfp_deps="arm"
1411 neon_deps="arm"
1412 vfpv3_deps="armvfp"
1413
1414 mipsfpu_deps="mips"
1415 mips32r2_deps="mips"
1416 mipsdspr1_deps="mips"
1417 mipsdspr2_deps="mips"
1418 mmi_deps="mips"
1419
1420 altivec_deps="ppc"
1421 ppc4xx_deps="ppc"
1422
1423 vis_deps="sparc"
1424
1425 x86_64_suggest="cmov fast_cmov"
1426 amd3dnow_deps="mmx"
1427 amd3dnowext_deps="amd3dnow"
1428 mmx_deps="x86"
1429 mmx2_deps="mmx"
1430 sse_deps="mmx"
1431 ssse3_deps="sse"
1432 avx_deps="ssse3"
1433
1434 aligned_stack_if_any="ppc x86"
1435 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1436 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1437 fast_unaligned_if_any="armv6 ppc x86"
1438
1439 inline_asm_deps="!tms470"
1440 need_memalign="altivec neon sse"
1441
1442 symver_if_any="symver_asm_label symver_gnu_asm"
1443
1444 # subsystems
1445 dct_select="rdft"
1446 mdct_select="fft"
1447 rdft_select="fft"
1448 mpegaudiodsp_select="dct"
1449
1450 # decoders / encoders / hardware accelerators
1451 aac_decoder_select="mdct sinewin"
1452 aac_encoder_select="mdct sinewin"
1453 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1454 ac3_decoder_select="mdct ac3dsp ac3_parser"
1455 ac3_encoder_select="mdct ac3dsp"
1456 ac3_fixed_encoder_select="mdct ac3dsp"
1457 alac_encoder_select="lpc"
1458 amrnb_decoder_select="lsp"
1459 amrwb_decoder_select="lsp"
1460 amv_encoder_select="aandct"
1461 atrac1_decoder_select="mdct sinewin"
1462 atrac3_decoder_select="mdct"
1463 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1464 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1465 cavs_decoder_select="golomb"
1466 cook_decoder_select="mdct sinewin"
1467 cscd_decoder_suggest="zlib"
1468 dca_decoder_select="mdct"
1469 dirac_decoder_select="dwt golomb"
1470 dnxhd_encoder_select="aandct"
1471 dxa_decoder_select="zlib"
1472 eac3_decoder_select="ac3_decoder"
1473 eac3_encoder_select="mdct ac3dsp"
1474 eamad_decoder_select="aandct"
1475 eatgq_decoder_select="aandct"
1476 eatqi_decoder_select="aandct"
1477 exr_decoder_select="zlib"
1478 ffv1_decoder_select="golomb"
1479 flac_decoder_select="golomb"
1480 flac_encoder_select="golomb lpc"
1481 flashsv_decoder_select="zlib"
1482 flashsv_encoder_select="zlib"
1483 flashsv2_encoder_select="zlib"
1484 flashsv2_decoder_select="zlib"
1485 flv_decoder_select="h263_decoder"
1486 flv_encoder_select="h263_encoder"
1487 fraps_decoder_select="huffman"
1488 h261_encoder_select="aandct"
1489 h263_decoder_select="h263_parser"
1490 h263_encoder_select="aandct"
1491 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1492 h263i_decoder_select="h263_decoder"
1493 h263p_encoder_select="h263_encoder"
1494 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1495 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1496 h264_dxva2_hwaccel_deps="dxva2api_h"
1497 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1498 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1499 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1500 h264_vda_hwaccel_select="vda h264_decoder"
1501 h264_vdpau_decoder_select="vdpau h264_decoder"
1502 iac_decoder_select="fft mdct sinewin"
1503 imc_decoder_select="fft mdct sinewin"
1504 jpegls_decoder_select="golomb"
1505 jpegls_encoder_select="golomb"
1506 ljpeg_encoder_select="aandct"
1507 loco_decoder_select="golomb"
1508 mjpeg_encoder_select="aandct"
1509 mlp_decoder_select="mlp_parser"
1510 mp1_decoder_select="mpegaudiodsp"
1511 mp1float_decoder_select="mpegaudiodsp"
1512 mp2_decoder_select="mpegaudiodsp"
1513 mp2float_decoder_select="mpegaudiodsp"
1514 mp3_decoder_select="mpegaudiodsp"
1515 mp3adu_decoder_select="mpegaudiodsp"
1516 mp3adufloat_decoder_select="mpegaudiodsp"
1517 mp3float_decoder_select="mpegaudiodsp"
1518 mp3on4_decoder_select="mpegaudiodsp"
1519 mp3on4float_decoder_select="mpegaudiodsp"
1520 mpc7_decoder_select="mpegaudiodsp"
1521 mpc8_decoder_select="mpegaudiodsp"
1522 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1523 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1524 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1525 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1526 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1527 mpeg1video_encoder_select="aandct"
1528 mpeg2_crystalhd_decoder_select="crystalhd"
1529 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1530 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1531 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1532 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1533 mpeg2video_encoder_select="aandct"
1534 mpeg4_crystalhd_decoder_select="crystalhd"
1535 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1536 mpeg4_encoder_select="h263_encoder"
1537 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1538 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1539 msmpeg4_crystalhd_decoder_select="crystalhd"
1540 msmpeg4v1_decoder_select="h263_decoder"
1541 msmpeg4v1_encoder_select="h263_encoder"
1542 msmpeg4v2_decoder_select="h263_decoder"
1543 msmpeg4v2_encoder_select="h263_encoder"
1544 msmpeg4v3_decoder_select="h263_decoder"
1545 msmpeg4v3_encoder_select="h263_encoder"
1546 nellymoser_decoder_select="mdct sinewin"
1547 nellymoser_encoder_select="mdct sinewin"
1548 png_decoder_select="zlib"
1549 png_encoder_select="zlib"
1550 qcelp_decoder_select="lsp"
1551 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1552 ra_144_encoder_select="lpc"
1553 ralf_decoder_select="golomb"
1554 rv10_decoder_select="h263_decoder"
1555 rv10_encoder_select="h263_encoder"
1556 rv20_decoder_select="h263_decoder"
1557 rv20_encoder_select="h263_encoder"
1558 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1559 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1560 shorten_decoder_select="golomb"
1561 sipr_decoder_select="lsp"
1562 snow_decoder_select="dwt"
1563 snow_encoder_select="aandct dwt"
1564 sonic_decoder_select="golomb"
1565 sonic_encoder_select="golomb"
1566 sonic_ls_encoder_select="golomb"
1567 svq1_encoder_select="aandct"
1568 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1569 svq3_decoder_suggest="zlib"
1570 theora_decoder_select="vp3_decoder"
1571 tiff_decoder_suggest="zlib"
1572 tiff_encoder_suggest="zlib"
1573 tscc_decoder_select="zlib"
1574 twinvq_decoder_select="mdct lsp sinewin"
1575 vc1_crystalhd_decoder_select="crystalhd"
1576 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1577 vc1_dxva2_hwaccel_deps="dxva2api_h"
1578 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1579 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1580 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1581 vc1image_decoder_select="vc1_decoder"
1582 vorbis_decoder_select="mdct"
1583 vorbis_encoder_select="mdct"
1584 vp3_decoder_select="vp3dsp"
1585 vp5_decoder_select="vp3dsp"
1586 vp6_decoder_select="huffman vp3dsp"
1587 vp6a_decoder_select="vp6_decoder"
1588 vp6f_decoder_select="vp6_decoder"
1589 vp8_decoder_select="h264pred h264qpel"
1590 wmapro_decoder_select="mdct sinewin"
1591 wmav1_decoder_select="mdct sinewin"
1592 wmav1_encoder_select="mdct sinewin"
1593 wmav2_decoder_select="mdct sinewin"
1594 wmav2_encoder_select="mdct sinewin"
1595 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1596 wmv1_decoder_select="h263_decoder"
1597 wmv1_encoder_select="h263_encoder"
1598 wmv2_decoder_select="h263_decoder"
1599 wmv2_encoder_select="h263_encoder"
1600 wmv3_decoder_select="vc1_decoder"
1601 wmv3_crystalhd_decoder_select="crystalhd"
1602 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1603 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1604 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1605 wmv3image_decoder_select="wmv3_decoder"
1606 zerocodec_decoder_select="zlib"
1607 zlib_decoder_select="zlib"
1608 zlib_encoder_select="zlib"
1609 zmbv_decoder_select="zlib"
1610 zmbv_encoder_select="zlib"
1611
1612 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1613 vaapi_deps="va_va_h"
1614 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1615 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1616
1617 # parsers
1618 h264_parser_select="golomb h264dsp h264pred"
1619
1620 # external libraries
1621 libaacplus_encoder_deps="libaacplus"
1622 libcelt_decoder_deps="libcelt"
1623 libfaac_encoder_deps="libfaac"
1624 libfdk_aac_encoder_deps="libfdk_aac"
1625 libgsm_decoder_deps="libgsm"
1626 libgsm_encoder_deps="libgsm"
1627 libgsm_ms_decoder_deps="libgsm"
1628 libgsm_ms_encoder_deps="libgsm"
1629 libilbc_decoder_deps="libilbc"
1630 libilbc_encoder_deps="libilbc"
1631 libmodplug_demuxer_deps="libmodplug"
1632 libmp3lame_encoder_deps="libmp3lame"
1633 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1634 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1635 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1636 libopenjpeg_decoder_deps="libopenjpeg"
1637 libopenjpeg_encoder_deps="libopenjpeg"
1638 libschroedinger_decoder_deps="libschroedinger"
1639 libschroedinger_encoder_deps="libschroedinger"
1640 libspeex_decoder_deps="libspeex"
1641 libspeex_encoder_deps="libspeex"
1642 libstagefright_h264_decoder_deps="libstagefright_h264"
1643 libtheora_encoder_deps="libtheora"
1644 libvo_aacenc_encoder_deps="libvo_aacenc"
1645 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1646 libvorbis_decoder_deps="libvorbis"
1647 libvorbis_encoder_deps="libvorbis"
1648 libvpx_decoder_deps="libvpx"
1649 libvpx_encoder_deps="libvpx"
1650 libx264_encoder_deps="libx264"
1651 libx264rgb_encoder_deps="libx264"
1652 libxavs_encoder_deps="libxavs"
1653 libxvid_encoder_deps="libxvid"
1654 libutvideo_decoder_deps="libutvideo"
1655 libutvideo_encoder_deps="libutvideo"
1656
1657 # demuxers / muxers
1658 ac3_demuxer_select="ac3_parser"
1659 asf_stream_muxer_select="asf_muxer"
1660 avisynth_demuxer_deps="avisynth"
1661 dirac_demuxer_select="dirac_parser"
1662 eac3_demuxer_select="ac3_parser"
1663 flac_demuxer_select="flac_parser"
1664 ipod_muxer_select="mov_muxer"
1665 libnut_demuxer_deps="libnut"
1666 libnut_muxer_deps="libnut"
1667 matroska_audio_muxer_select="matroska_muxer"
1668 matroska_demuxer_suggest="zlib bzlib"
1669 mov_demuxer_suggest="zlib"
1670 mp3_demuxer_select="mpegaudio_parser"
1671 mp4_muxer_select="mov_muxer"
1672 mpegts_muxer_select="adts_muxer latm_muxer"
1673 mpegtsraw_demuxer_select="mpegts_demuxer"
1674 mxf_d10_muxer_select="mxf_muxer"
1675 ogg_demuxer_select="golomb"
1676 psp_muxer_select="mov_muxer"
1677 rtp_demuxer_select="sdp_demuxer"
1678 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1679 rtsp_demuxer_select="http_protocol rtpdec"
1680 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1681 sap_demuxer_select="sdp_demuxer"
1682 sap_muxer_select="rtp_muxer rtp_protocol"
1683 sdp_demuxer_select="rtpdec"
1684 spdif_muxer_select="aac_parser"
1685 tg2_muxer_select="mov_muxer"
1686 tgp_muxer_select="mov_muxer"
1687 w64_demuxer_deps="wav_demuxer"
1688
1689 # indevs / outdevs
1690 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1691 alsa_outdev_deps="alsa_asoundlib_h"
1692 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1693 dshow_indev_deps="IBaseFilter"
1694 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1695 dv1394_indev_deps="dv1394 dv_demuxer"
1696 fbdev_indev_deps="linux_fb_h"
1697 iec61883_indev_deps="libiec61883"
1698 jack_indev_deps="jack_jack_h sem_timedwait"
1699 lavfi_indev_deps="avfilter"
1700 libcdio_indev_deps="libcdio"
1701 libdc1394_indev_deps="libdc1394"
1702 libv4l2_indev_deps="libv4l2"
1703 openal_indev_deps="openal"
1704 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1705 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1706 pulse_indev_deps="libpulse"
1707 sdl_outdev_deps="sdl"
1708 sndio_indev_deps="sndio_h"
1709 sndio_outdev_deps="sndio_h"
1710 v4l_indev_deps="linux_videodev_h"
1711 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1712 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1713 vfwcap_indev_extralibs="-lavicap32"
1714 x11_grab_device_indev_deps="x11grab"
1715
1716 # protocols
1717 bluray_protocol_deps="libbluray"
1718 ffrtmphttp_protocol_deps="!librtmp_protocol"
1719 ffrtmphttp_protocol_select="http_protocol"
1720 gopher_protocol_deps="network"
1721 httpproxy_protocol_deps="network"
1722 httpproxy_protocol_select="tcp_protocol"
1723 http_protocol_deps="network"
1724 http_protocol_select="tcp_protocol"
1725 https_protocol_select="tls_protocol"
1726 librtmp_protocol_deps="librtmp"
1727 librtmpe_protocol_deps="librtmp"
1728 librtmps_protocol_deps="librtmp"
1729 librtmpt_protocol_deps="librtmp"
1730 librtmpte_protocol_deps="librtmp"
1731 mmsh_protocol_select="http_protocol"
1732 mmst_protocol_deps="network"
1733 rtmp_protocol_deps="!librtmp_protocol"
1734 rtmp_protocol_select="tcp_protocol"
1735 rtmps_protocol_deps="!librtmp_protocol"
1736 rtmps_protocol_select="tls_protocol"
1737 rtmpt_protocol_deps="!librtmp_protocol"
1738 rtmpt_protocol_select="ffrtmphttp_protocol"
1739 rtmpts_protocol_deps="!librtmp_protocol"
1740 rtmpts_protocol_select="ffrtmphttp_protocol"
1741 rtp_protocol_select="udp_protocol"
1742 sctp_protocol_deps="network netinet_sctp_h"
1743 tcp_protocol_deps="network"
1744 tls_protocol_deps_any="openssl gnutls"
1745 tls_protocol_select="tcp_protocol"
1746 udp_protocol_deps="network"
1747
1748 # filters
1749 aconvert_filter_deps="swresample"
1750 amovie_filter_deps="avcodec avformat"
1751 aresample_filter_deps="swresample"
1752 ass_filter_deps="libass"
1753 asyncts_filter_deps="avresample"
1754 atempo_filter_deps="avcodec rdft"
1755 blackframe_filter_deps="gpl"
1756 boxblur_filter_deps="gpl"
1757 colormatrix_filter_deps="gpl"
1758 cropdetect_filter_deps="gpl"
1759 delogo_filter_deps="gpl"
1760 deshake_filter_deps="avcodec"
1761 drawtext_filter_deps="libfreetype"
1762 frei0r_filter_deps="frei0r dlopen"
1763 frei0r_filter_extralibs='$ldl'
1764 frei0r_src_filter_deps="frei0r dlopen"
1765 frei0r_src_filter_extralibs='$ldl'
1766 hqdn3d_filter_deps="gpl"
1767 movie_filter_deps="avcodec avformat"
1768 mp_filter_deps="gpl avcodec swscale postproc"
1769 mptestsrc_filter_deps="gpl"
1770 negate_filter_deps="lut_filter"
1771 resample_filter_deps="avresample"
1772 ocv_filter_deps="libopencv"
1773 pan_filter_deps="swresample"
1774 removelogo_filter_deps="avcodec avformat swscale"
1775 scale_filter_deps="swscale"
1776 select_filter_deps="avcodec"
1777 super2xsai_filter_deps="gpl"
1778 tinterlace_filter_deps="gpl"
1779 yadif_filter_deps="gpl"
1780
1781 # libraries
1782 avdevice_deps="avcodec avformat"
1783 avformat_deps="avcodec"
1784 postproc_deps="gpl"
1785
1786 # programs
1787 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1788 ffmpeg_select="buffersink_filter format_filter aformat_filter
1789                setpts_filter null_filter anull_filter abuffersink_filter"
1790 ffplay_deps="avcodec avformat swscale swresample sdl"
1791 ffplay_select="buffersink_filter rdft"
1792 ffprobe_deps="avcodec avformat"
1793 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1794 ffserver_extralibs='$ldl'
1795
1796 doc_deps_any="texi2html makeinfo pod2man"
1797
1798 # tests
1799
1800 test_deps(){
1801     suf1=$1
1802     suf2=$2
1803     shift 2
1804     for v; do
1805         dep=${v%=*}
1806         tests=${v#*=}
1807         for name in ${tests}; do
1808             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1809         done
1810     done
1811 }
1812
1813 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1814
1815 test_deps _muxer _demuxer                                               \
1816     aiff                                                                \
1817     pcm_alaw=alaw                                                       \
1818     asf                                                                 \
1819     au                                                                  \
1820     avi                                                                 \
1821     dv=dv_fmt                                                           \
1822     ffm                                                                 \
1823     flv=flv_fmt                                                         \
1824     gxf                                                                 \
1825     matroska=mkv                                                        \
1826     mmf                                                                 \
1827     mov="mov ismv"                                                      \
1828     pcm_mulaw=mulaw                                                     \
1829     mxf="mxf mxf_d10"                                                   \
1830     nut                                                                 \
1831     ogg="ogg ogg_vp3"                                                   \
1832     rawvideo=pixfmt                                                     \
1833     rm                                                                  \
1834     swf                                                                 \
1835     mpegts=ts                                                           \
1836     voc                                                                 \
1837     wav                                                                 \
1838     yuv4mpegpipe=yuv4mpeg                                               \
1839
1840 colormatrix1_test_deps="colormatrix_filter"
1841 colormatrix2_test_deps="colormatrix_filter"
1842 flashsv2_test_deps="zlib"
1843 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1844 mpng_test_deps="zlib"
1845 pp_test_deps="mp_filter"
1846 pp2_test_deps="mp_filter"
1847 pp3_test_deps="mp_filter"
1848 pp4_test_deps="mp_filter"
1849 pp5_test_deps="mp_filter"
1850 pp6_test_deps="mp_filter"
1851 zlib_test_deps="zlib"
1852 zmbv_test_deps="zlib"
1853
1854 # default parameters
1855
1856 logfile="config.log"
1857
1858 # installation paths
1859 prefix_default="/usr/local"
1860 bindir_default='${prefix}/bin'
1861 datadir_default='${prefix}/share/ffmpeg'
1862 incdir_default='${prefix}/include'
1863 libdir_default='${prefix}/lib'
1864 mandir_default='${prefix}/share/man'
1865 shlibdir_default="$libdir_default"
1866 postproc_version_default="current"
1867
1868 # toolchain
1869 ar_default="ar"
1870 cc_default="gcc"
1871 cxx_default="g++"
1872 host_cc_default="gcc"
1873 install="install"
1874 ln_s="ln -sf"
1875 nm_default="nm"
1876 objformat="elf"
1877 pkg_config_default=pkg-config
1878 ranlib="ranlib"
1879 strip_default="strip"
1880 yasmexe_default="yasm"
1881
1882 nm_opts='-g'
1883 nogas=":"
1884
1885 # machine
1886 arch_default=$(uname -m)
1887 cpu="generic"
1888
1889 # OS
1890 target_os_default=$(tolower $(uname -s))
1891 host_os=$target_os_default
1892
1893 # alternative libpostproc version
1894 ALT_PP_VER_MAJOR=51
1895 ALT_PP_VER_MINOR=2
1896 ALT_PP_VER_MICRO=101
1897 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1898
1899 # configurable options
1900 enable $PROGRAM_LIST
1901
1902 enable avcodec
1903 enable avdevice
1904 enable avfilter
1905 enable avformat
1906 enable avutil
1907 enable postproc
1908 enable stripping
1909 enable swresample
1910 enable swscale
1911
1912 enable asm
1913 enable debug
1914 enable doc
1915 enable fastdiv
1916 enable network
1917 enable optimizations
1918 enable safe_bitstream_reader
1919 enable static
1920 enable swscale_alpha
1921
1922 # build settings
1923 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1924 FFSERVERLDFLAGS=-Wl,-E
1925 LIBPREF="lib"
1926 LIBSUF=".a"
1927 FULLNAME='$(NAME)$(BUILDSUF)'
1928 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1929 SLIBPREF="lib"
1930 SLIBSUF=".so"
1931 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1932 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1933 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1934 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1935 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1936 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1937
1938 AS_O='-o $@'
1939 CC_O='-o $@'
1940 CXX_O='-o $@'
1941
1942 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1943 host_libs='-lm'
1944
1945 target_path='$(CURDIR)'
1946
1947 # since the object filename is not given with the -MM flag, the compiler
1948 # is only able to print the basename, and we must add the path ourselves
1949 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1950 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1951
1952 # find source path
1953 if test -f configure; then
1954     source_path=.
1955 else
1956     source_path=$(cd $(dirname "$0"); pwd)
1957     echo "$source_path" | grep -q '[[:blank:]]' &&
1958         die "Out of tree builds are impossible with whitespace in source path."
1959     test -e "$source_path/config.h" &&
1960         die "Out of tree builds are impossible with config.h in source dir."
1961 fi
1962
1963 for v in "$@"; do
1964     r=${v#*=}
1965     l=${v%"$r"}
1966     r=$(sh_quote "$r")
1967     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1968 done
1969
1970 find_things(){
1971     thing=$1
1972     pattern=$2
1973     file=$source_path/$3
1974     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1975 }
1976
1977 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1978 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1979 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1980 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1981 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1982 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1983 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1984 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1985 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1986 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1987 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1988
1989 ALL_COMPONENTS="
1990     $BSF_LIST
1991     $DECODER_LIST
1992     $DEMUXER_LIST
1993     $ENCODER_LIST
1994     $FILTER_LIST
1995     $HWACCEL_LIST
1996     $INDEV_LIST
1997     $MUXER_LIST
1998     $OUTDEV_LIST
1999     $PARSER_LIST
2000     $PROTOCOL_LIST
2001 "
2002
2003 find_tests(){
2004     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2005 }
2006
2007 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2008 LAVF_TESTS=$(find_tests lavf)
2009 LAVFI_TESTS=$(find_tests lavfi)
2010 SEEK_TESTS=$(find_tests seek seek_)
2011
2012 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2013
2014 for n in $COMPONENT_LIST; do
2015     v=$(toupper ${n%s})_LIST
2016     eval enable \$$v
2017     eval ${n}_if_any="\$$v"
2018 done
2019
2020 enable $ARCH_EXT_LIST $ALL_TESTS
2021
2022 die_unknown(){
2023     echo "Unknown option \"$1\"."
2024     echo "See $0 --help for available options."
2025     exit 1
2026 }
2027
2028 show_list() {
2029     suffix=_$1
2030     shift
2031     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2032     exit 0
2033 }
2034
2035 rand_list(){
2036     IFS=', '
2037     set -- $*
2038     unset IFS
2039     for thing; do
2040         comp=${thing%:*}
2041         prob=${thing#$comp}
2042         prob=${prob#:}
2043         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2044         echo "prob ${prob:-0.5}"
2045         printf '%s\n' $comp
2046     done
2047 }
2048
2049 do_random(){
2050     action=$1
2051     shift
2052     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2053     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2054 }
2055
2056 for opt do
2057     optval="${opt#*=}"
2058     case "$opt" in
2059     --extra-ldflags=*) add_ldflags $optval
2060     ;;
2061     --extra-libs=*) add_extralibs $optval
2062     ;;
2063     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2064     ;;
2065     --enable-debug=*) debuglevel="$optval"
2066     ;;
2067     --disable-everything)
2068     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2069     ;;
2070     --enable-random|--disable-random)
2071     action=${opt%%-random}
2072     do_random ${action#--} $COMPONENT_LIST
2073     ;;
2074     --enable-random=*|--disable-random=*)
2075     action=${opt%%-random=*}
2076     do_random ${action#--} $optval
2077     ;;
2078     --enable-*=*|--disable-*=*)
2079     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2080     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2081     eval list=\$$(toupper $thing)_LIST
2082     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2083     $action $(filter "$name" $list)
2084     ;;
2085     --enable-?*|--disable-?*)
2086     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2087     if is_in $option $COMPONENT_LIST; then
2088         test $action = disable && action=unset
2089         eval $action \$$(toupper ${option%s})_LIST
2090     elif is_in $option $CMDLINE_SELECT; then
2091         $action $option
2092     else
2093         die_unknown $opt
2094     fi
2095     ;;
2096     --list-*)
2097         NAME="${opt#--list-}"
2098         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2099         NAME=${NAME%s}
2100         eval show_list $NAME \$$(toupper $NAME)_LIST
2101     ;;
2102     --help|-h) show_help
2103     ;;
2104     *)
2105     optname="${opt%%=*}"
2106     optname="${optname#--}"
2107     optname=$(echo "$optname" | sed 's/-/_/g')
2108     if is_in $optname $CMDLINE_SET; then
2109         eval $optname='$optval'
2110     elif is_in $optname $CMDLINE_APPEND; then
2111         append $optname "$optval"
2112     else
2113          die_unknown $opt
2114     fi
2115     ;;
2116     esac
2117 done
2118
2119 disabled logging && logfile=/dev/null
2120
2121 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2122 set >> $logfile
2123
2124 test -n "$cross_prefix" && enable cross_compile
2125
2126 if enabled cross_compile; then
2127     test -n "$arch" && test -n "$target_os" ||
2128         die "Must specify target arch and OS when cross-compiling"
2129 fi
2130
2131 set_default arch target_os postproc_version
2132
2133 # Check if we should build alternative libpostproc version instead of current
2134 if   test "$postproc_version" = $ALT_PP_VER; then
2135   LIBPOSTPROC_VERSION=$ALT_PP_VER
2136   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2137   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2138   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2139 elif test "$postproc_version" != current; then
2140   die "Invalid argument to --postproc-version. See --help output."
2141 fi
2142
2143 ar_default="${cross_prefix}${ar_default}"
2144 cc_default="${cross_prefix}${cc_default}"
2145 cxx_default="${cross_prefix}${cxx_default}"
2146 nm_default="${cross_prefix}${nm_default}"
2147 pkg_config_default="${cross_prefix}${pkg_config_default}"
2148 ranlib="${cross_prefix}${ranlib}"
2149 strip_default="${cross_prefix}${strip_default}"
2150
2151 sysinclude_default="${sysroot}/usr/include"
2152
2153 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2154 enabled cross_compile || host_cc_default=$cc
2155 set_default host_cc
2156
2157 if ! $pkg_config --version >/dev/null 2>&1; then
2158     warn "$pkg_config not found, library detection may fail."
2159     pkg_config=false
2160 fi
2161
2162 exesuf() {
2163     case $1 in
2164         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2165     esac
2166 }
2167
2168 EXESUF=$(exesuf $target_os)
2169 HOSTEXESUF=$(exesuf $host_os)
2170
2171 # set temporary file name
2172 : ${TMPDIR:=$TEMPDIR}
2173 : ${TMPDIR:=$TMP}
2174 : ${TMPDIR:=/tmp}
2175
2176 if ! check_cmd mktemp -u XXXXXX; then
2177     # simple replacement for missing mktemp
2178     # NOT SAFE FOR GENERAL USE
2179     mktemp(){
2180         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2181     }
2182 fi
2183
2184 tmpfile(){
2185     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2186         (set -C; exec > $tmp) 2>/dev/null ||
2187         die "Unable to create temporary file in $TMPDIR."
2188     append TMPFILES $tmp
2189     eval $1=$tmp
2190 }
2191
2192 trap 'rm -f -- $TMPFILES' EXIT
2193
2194 tmpfile TMPASM .asm
2195 tmpfile TMPC   .c
2196 tmpfile TMPCPP .cpp
2197 tmpfile TMPE   $EXESUF
2198 tmpfile TMPH   .h
2199 tmpfile TMPO   .o
2200 tmpfile TMPS   .S
2201 tmpfile TMPSH  .sh
2202 tmpfile TMPV   .ver
2203
2204 unset -f mktemp
2205
2206 chmod +x $TMPE
2207
2208 # make sure we can execute files in $TMPDIR
2209 cat > $TMPSH 2>> $logfile <<EOF
2210 #! /bin/sh
2211 EOF
2212 chmod +x $TMPSH >> $logfile 2>&1
2213 if ! $TMPSH >> $logfile 2>&1; then
2214     cat <<EOF
2215 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2216 variable to another directory and make sure that it is not mounted noexec.
2217 EOF
2218     die "Sanity test failed."
2219 fi
2220
2221 filter_asflags=echo
2222 filter_cflags=echo
2223 filter_cppflags=echo
2224
2225 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2226     cc_type=llvm_gcc
2227     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2228     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2229     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2230     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2231     speed_cflags='-O3'
2232     size_cflags='-Os'
2233 elif $cc -v 2>&1 | grep -qi ^gcc; then
2234     cc_type=gcc
2235     gcc_version=$($cc --version | head -n1)
2236     gcc_basever=$($cc -dumpversion)
2237     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2238     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2239     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2240     if ! $cc -dumpversion | grep -q '^2\.'; then
2241         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2242         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2243     fi
2244     speed_cflags='-O3'
2245     size_cflags='-Os'
2246 elif $cc --version 2>/dev/null | grep -q Intel; then
2247     cc_type=icc
2248     cc_ident=$($cc --version | head -n1)
2249     icc_version=$($cc -dumpversion)
2250     CC_DEPFLAGS='-MMD'
2251     AS_DEPFLAGS='-MMD'
2252     speed_cflags='-O3'
2253     size_cflags='-Os'
2254     noopt_cflags='-O1'
2255 elif $cc -v 2>&1 | grep -q xlc; then
2256     cc_type=xlc
2257     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2258     speed_cflags='-O5'
2259     size_cflags='-O5 -qcompact'
2260 elif $cc -V 2>/dev/null | grep -q Compaq; then
2261     cc_type=ccc
2262     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2263     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2264     debuglevel=3
2265     add_ldflags -Wl,-z,now # calls to libots crash without this
2266     speed_cflags='-fast'
2267     size_cflags='-O1'
2268 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2269     test -d "$sysroot" || die "No valid sysroot specified."
2270     cc_type=armcc
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 $cc -version 2>/dev/null | grep -q TMS470; then
2287     cc_type=tms470
2288     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2289     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2290     CC_O='-fr=$(@D)'
2291     as_default="${cross_prefix}gcc"
2292     ld_default="${cross_prefix}gcc"
2293     TMPO=$(basename $TMPC .c).o
2294     append TMPFILES $TMPO
2295     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2296     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2297     AS_DEPFLAGS='-MMD'
2298     speed_cflags='-O3 -mf=5'
2299     size_cflags='-O3 -mf=2'
2300     filter_cflags=tms470_flags
2301     tms470_flags(){
2302         for flag; do
2303             case $flag in
2304                 -march=*|-mcpu=*)
2305                     case "${flag#*=}" in
2306                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2307                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2308                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2309                         armv6*|arm11*)          echo -mv=6   ;;
2310                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2311                                                 echo -mv=5e  ;;
2312                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2313                     esac
2314                     ;;
2315                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2316                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2317                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2318                 -msoft-float)   echo --float_support=vfplib       ;;
2319                 -O[0-3]|-mf=*)  echo $flag                        ;;
2320                 -g)             echo -g -mn                       ;;
2321                 -pds=*)         echo $flag                        ;;
2322             esac
2323         done
2324     }
2325 elif $cc -v 2>&1 | grep -q clang; then
2326     cc_type=clang
2327     cc_ident=$($cc --version | head -n1)
2328     CC_DEPFLAGS='-MMD'
2329     AS_DEPFLAGS='-MMD'
2330     speed_cflags='-O3'
2331     size_cflags='-Os'
2332 elif $cc -V 2>&1 | grep -q Sun; then
2333     cc_type=suncc
2334     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2335     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2336     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2337     add_ldflags -xc99
2338     speed_cflags='-O5'
2339     size_cflags='-O5 -xspace'
2340     filter_cflags=suncc_flags
2341     suncc_flags(){
2342         for flag; do
2343             case $flag in
2344                 -march=*|-mcpu=*)
2345                     case "${flag#*=}" in
2346                         native)                   echo -xtarget=native       ;;
2347                         v9|niagara)               echo -xarch=sparc          ;;
2348                         ultrasparc)               echo -xarch=sparcvis       ;;
2349                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2350                         i586|pentium)             echo -xchip=pentium        ;;
2351                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2352                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2353                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2354                         pentium4*)          echo -xtarget=pentium4           ;;
2355                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2356                         *-sse3)             echo -xarch=sse3                 ;;
2357                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2358                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2359                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2360                         k8|opteron|athlon64|athlon-fx)
2361                                                   echo -xarch=sse2a          ;;
2362                         athlon*)                  echo -xarch=pentium_proa   ;;
2363                     esac
2364                     ;;
2365                 -std=c99)             echo -xc99              ;;
2366                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2367                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2368                 -W*,*)                echo $flag              ;;
2369                 -f*-*|-W*)                                    ;;
2370                 *)                    echo $flag              ;;
2371             esac
2372         done
2373     }
2374 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2375     cc_type=pathscale
2376     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2377     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2378     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2379     speed_cflags='-O2'
2380     size_cflags='-Os'
2381     filter_cflags='filter_out -Wdisabled-optimization'
2382 elif $cc -v 2>&1 | grep -q Open64; then
2383     cc_type=open64
2384     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2385     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2386     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2387     speed_cflags='-O2'
2388     size_cflags='-Os'
2389     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2390 elif $cc -V 2>&1 | grep -q Portland; then
2391     cc_type=pgi
2392     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2393     opt_common='-alias=ansi -Mlre -Mpre'
2394     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2395     size_cflags="-O2 -Munroll=c:1 $opt_common"
2396     noopt_cflags="-O1"
2397     filter_cflags=pgi_flags
2398     pgi_flags(){
2399         for flag; do
2400             case $flag in
2401                 -fomit-frame-pointer) echo -Mnoframe ;;
2402                 -g)                   echo -gopt ;;
2403                 *)                    echo $flag ;;
2404             esac
2405         done
2406     }
2407 fi
2408
2409 test -n "$cc_type" && enable $cc_type ||
2410     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2411
2412 : ${as_default:=$cc}
2413 : ${dep_cc_default:=$cc}
2414 : ${ld_default:=$cc}
2415 set_default ar as dep_cc ld
2416
2417 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2418 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2419 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2420
2421 add_cflags $extra_cflags
2422 add_cxxflags $extra_cxxflags
2423 add_asflags $extra_cflags
2424
2425 if test -n "$sysroot"; then
2426     case "$cc_type" in
2427         gcc|llvm_gcc|clang)
2428             add_cppflags --sysroot="$sysroot"
2429             add_ldflags --sysroot="$sysroot"
2430         ;;
2431         tms470)
2432             add_cppflags -I"$sysinclude"
2433             add_ldflags  --sysroot="$sysroot"
2434         ;;
2435     esac
2436 fi
2437
2438 if test "$cpu" = host; then
2439     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2440
2441     case "$cc_type" in
2442         gcc|llvm_gcc)
2443             check_native(){
2444                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2445                 sed -n "/cc1.*$1=/{
2446                             s/.*$1=\\([^ ]*\\).*/\\1/
2447                             p
2448                             q
2449                         }" $TMPE
2450             }
2451             cpu=$(check_native -march || check_native -mcpu)
2452         ;;
2453     esac
2454
2455     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2456 fi
2457
2458 # Deal with common $arch aliases
2459 case "$arch" in
2460     arm*|iPad*)
2461         arch="arm"
2462     ;;
2463     mips|mipsel|IP*)
2464         arch="mips"
2465     ;;
2466     mips64*)
2467         arch="mips"
2468         subarch="mips64"
2469     ;;
2470     parisc|hppa)
2471         arch="parisc"
2472     ;;
2473     parisc64|hppa64)
2474         arch="parisc"
2475         subarch="parisc64"
2476     ;;
2477     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2478         arch="ppc"
2479     ;;
2480     s390|s390x)
2481         arch="s390"
2482     ;;
2483     sh4|sh)
2484         arch="sh4"
2485     ;;
2486     sun4u|sparc64)
2487         arch="sparc"
2488         subarch="sparc64"
2489     ;;
2490     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2491         arch="x86"
2492     ;;
2493 esac
2494
2495 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2496 enable $arch
2497
2498 # Add processor-specific flags
2499 if test "$cpu" = generic; then
2500     : do nothing
2501 elif enabled ppc; then
2502
2503     case $(tolower $cpu) in
2504         601|ppc601|powerpc601)
2505             cpuflags="-mcpu=601"
2506             disable altivec
2507         ;;
2508         603*|ppc603*|powerpc603*)
2509             cpuflags="-mcpu=603"
2510             disable altivec
2511         ;;
2512         604*|ppc604*|powerpc604*)
2513             cpuflags="-mcpu=604"
2514             disable altivec
2515         ;;
2516         g3|75*|ppc75*|powerpc75*)
2517             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2518             disable altivec
2519         ;;
2520         g4|745*|ppc745*|powerpc745*)
2521             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2522         ;;
2523         74*|ppc74*|powerpc74*)
2524             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2525         ;;
2526         g5|970|ppc970|powerpc970)
2527             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2528         ;;
2529         power[3-7]*)
2530             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2531         ;;
2532         cell)
2533             cpuflags="-mcpu=cell"
2534             enable ldbrx
2535         ;;
2536         e500v2)
2537             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2538             disable altivec
2539         ;;
2540         e500)
2541             cpuflags="-mcpu=8540 -mhard-float"
2542             disable altivec
2543         ;;
2544     esac
2545
2546 elif enabled x86; then
2547
2548     case $cpu in
2549         i[345]86|pentium)
2550             cpuflags="-march=$cpu"
2551             disable mmx
2552         ;;
2553         # targets that do NOT support conditional mov (cmov)
2554         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2555             cpuflags="-march=$cpu"
2556             disable cmov
2557         ;;
2558         # targets that do support conditional mov (cmov)
2559         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2560             cpuflags="-march=$cpu"
2561             enable cmov
2562             enable fast_cmov
2563         ;;
2564         # targets that do support conditional mov but on which it's slow
2565         pentium4|pentium4m|prescott|nocona)
2566             cpuflags="-march=$cpu"
2567             enable cmov
2568             disable fast_cmov
2569         ;;
2570     esac
2571
2572 elif enabled sparc; then
2573
2574     case $cpu in
2575         niagara)
2576             cpuflags="-mcpu=$cpu"
2577             disable vis
2578         ;;
2579         sparc64)
2580             cpuflags="-mcpu=v9"
2581         ;;
2582     esac
2583
2584 elif enabled arm; then
2585
2586     case $cpu in
2587         armv*)
2588             cpuflags="-march=$cpu"
2589             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2590         ;;
2591         *)
2592             cpuflags="-mcpu=$cpu"
2593             case $cpu in
2594                 cortex-a*)                               subarch=armv7a  ;;
2595                 cortex-r*)                               subarch=armv7r  ;;
2596                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2597                 arm11*)                                  subarch=armv6   ;;
2598                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2599                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2600             esac
2601         ;;
2602     esac
2603
2604 elif enabled alpha; then
2605
2606     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2607
2608 elif enabled bfin; then
2609
2610     cpuflags="-mcpu=$cpu"
2611
2612 elif enabled mips; then
2613
2614     cpuflags="-march=$cpu"
2615
2616     case $cpu in
2617         24kc)
2618             disable mipsfpu
2619             disable mipsdspr1
2620             disable mipsdspr2
2621         ;;
2622         24kf*)
2623             disable mipsdspr1
2624             disable mipsdspr2
2625         ;;
2626         24kec|34kc|1004kc)
2627             disable mipsfpu
2628             disable mipsdspr2
2629         ;;
2630         24kef*|34kf*|1004kf*)
2631             disable mipsdspr2
2632         ;;
2633         74kc)
2634             disable mipsfpu
2635         ;;
2636     esac
2637
2638 elif enabled avr32; then
2639
2640     case $cpu in
2641         ap7[02]0[0-2])
2642             subarch="avr32_ap"
2643             cpuflags="-mpart=$cpu"
2644         ;;
2645         ap)
2646             subarch="avr32_ap"
2647             cpuflags="-march=$cpu"
2648         ;;
2649         uc3[ab]*)
2650             subarch="avr32_uc"
2651             cpuflags="-mcpu=$cpu"
2652         ;;
2653         uc)
2654             subarch="avr32_uc"
2655             cpuflags="-march=$cpu"
2656         ;;
2657     esac
2658
2659 fi
2660
2661 add_cflags $cpuflags
2662 add_asflags $cpuflags
2663
2664 # compiler sanity check
2665 check_exec <<EOF
2666 int main(void){ return 0; }
2667 EOF
2668 if test "$?" != 0; then
2669     echo "$cc is unable to create an executable file."
2670     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2671         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2672         echo "Only do this if you know what cross compiling means."
2673     fi
2674     die "C compiler test failed."
2675 fi
2676
2677 add_cppflags -D_ISOC99_SOURCE
2678 add_cxxflags -D__STDC_CONSTANT_MACROS
2679 check_cflags -std=c99
2680 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2681 #include <stdlib.h>
2682 EOF
2683 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2684 #include <stdlib.h>
2685 EOF
2686
2687 check_host_cflags -std=c99
2688 check_host_cflags -Wall
2689
2690 case "$arch" in
2691     alpha|ia64|mips|parisc|sparc)
2692         spic=$shared
2693     ;;
2694     x86)
2695         subarch="x86_32"
2696         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2697         if test "$subarch" = "x86_64"; then
2698             spic=$shared
2699         fi
2700     ;;
2701     ppc)
2702         check_cc <<EOF && subarch="ppc64"
2703         int test[(int)sizeof(char*) - 7];
2704 EOF
2705     ;;
2706 esac
2707
2708 enable $subarch
2709 enabled spic && enable pic
2710
2711 # OS specific
2712 case $target_os in
2713     haiku)
2714         prefix_default="/boot/common"
2715         network_extralibs="-lnetwork"
2716         host_libs=
2717         ;;
2718     sunos)
2719         FFSERVERLDFLAGS=""
2720         SHFLAGS='-shared -Wl,-h,$$(@F)'
2721         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2722         network_extralibs="-lsocket -lnsl"
2723         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2724         # When using suncc to build, the Solaris linker will mark
2725         # an executable with each instruction set encountered by
2726         # the Solaris assembler.  As our libraries contain their own
2727         # guards for processor-specific code, instead suppress
2728         # generation of the HWCAPS ELF section on Solaris x86 only.
2729         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2730         nm_opts='-P -g'
2731         ;;
2732     netbsd)
2733         disable symver
2734         oss_indev_extralibs="-lossaudio"
2735         oss_outdev_extralibs="-lossaudio"
2736         ;;
2737     openbsd|bitrig)
2738         # On OpenBSD 4.5. the compiler does not use PIC unless
2739         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2740         # however the generated executable will not do anything
2741         # (simply quits with exit-code 1, no crash, no output).
2742         # Thus explicitly enable PIC here.
2743         enable pic
2744         disable symver
2745         SHFLAGS='-shared'
2746         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2747         oss_indev_extralibs="-lossaudio"
2748         oss_outdev_extralibs="-lossaudio"
2749         ;;
2750     dragonfly)
2751         disable symver
2752         ;;
2753     freebsd)
2754         ;;
2755     bsd/os)
2756         add_extralibs -lpoll -lgnugetopt
2757         strip="strip -d"
2758         ;;
2759     darwin)
2760         gas="gas-preprocessor.pl $cc"
2761         enabled ppc && add_asflags -force_cpusubtype_ALL
2762         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2763         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2764         strip="${strip} -x"
2765         add_ldflags -Wl,-dynamic,-search_paths_first
2766         SLIBSUF=".dylib"
2767         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2768         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2769         FFSERVERLDFLAGS=-Wl,-bind_at_load
2770         objformat="macho"
2771         enabled x86_64 && objformat="macho64"
2772         enabled_any pic shared ||
2773             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2774         ;;
2775     mingw32*)
2776         if test $target_os = "mingw32ce"; then
2777             disable network
2778         else
2779             target_os=mingw32
2780         fi
2781         LIBTARGET=i386
2782         if enabled x86_64; then
2783             LIBTARGET=x64
2784         elif enabled arm; then
2785             LIBTARGET=arm-wince
2786         fi
2787         shlibdir_default="$bindir_default"
2788         SLIBPREF=""
2789         SLIBSUF=".dll"
2790         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2791         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2792         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2793         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2794         SLIB_INSTALL_LINKS=
2795         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2796         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2797         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'
2798         objformat="win32"
2799         enable dos_paths
2800         check_cflags -fno-common
2801         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2802                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2803                 die "ERROR: MinGW runtime version must be >= 3.15."
2804         add_cppflags -U__STRICT_ANSI__
2805         ;;
2806     cygwin*)
2807         target_os=cygwin
2808         shlibdir_default="$bindir_default"
2809         SLIBPREF="cyg"
2810         SLIBSUF=".dll"
2811         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2812         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2813         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2814         objformat="win32"
2815         enable dos_paths
2816         check_cflags -fno-common
2817         add_cppflags -U__STRICT_ANSI__
2818         ;;
2819     *-dos|freedos|opendos)
2820         network_extralibs="-lsocket"
2821         objformat="coff"
2822         enable dos_paths
2823         add_cppflags -U__STRICT_ANSI__
2824         ;;
2825     linux)
2826         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2827         enable dv1394
2828         ;;
2829     irix*)
2830         target_os=irix
2831         ranlib="echo ignoring ranlib"
2832         ;;
2833     os/2*)
2834         strip="lxlite -CS"
2835         ln_s="cp -f"
2836         objformat="aout"
2837         add_cppflags -D_GNU_SOURCE
2838         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2839         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2840         FFSERVERLDFLAGS=""
2841         LIBSUF="_s.a"
2842         SLIBPREF=""
2843         SLIBSUF=".dll"
2844         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2845         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2846         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2847           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2848           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2849           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2850           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2851           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2852         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2853           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2854         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2855         enable dos_paths
2856         enable_weak os2threads
2857         ;;
2858     gnu/kfreebsd)
2859         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2860         ;;
2861     gnu)
2862         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2863         ;;
2864     qnx)
2865         add_cppflags -D_QNX_SOURCE
2866         network_extralibs="-lsocket"
2867         ;;
2868     symbian)
2869         SLIBSUF=".dll"
2870         enable dos_paths
2871         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2872         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2873         add_ldflags -Wl,--target1-abs,--no-undefined \
2874                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2875                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2876         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2877                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2878                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2879         ;;
2880     none)
2881         ;;
2882     *)
2883         die "Unknown OS '$target_os'."
2884         ;;
2885 esac
2886
2887 esc(){
2888     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2889 }
2890
2891 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2892
2893 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2894
2895 set_default $PATHS_LIST
2896
2897 # we need to build at least one lib type
2898 if ! enabled_any static shared; then
2899     cat <<EOF
2900 At least one library type must be built.
2901 Specify --enable-static to build the static libraries or --enable-shared to
2902 build the shared libraries as well. To only build the shared libraries specify
2903 --disable-static in addition to --enable-shared.
2904 EOF
2905     exit 1;
2906 fi
2907
2908 die_license_disabled() {
2909     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2910 }
2911
2912 die_license_disabled_gpl() {
2913     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2914 }
2915
2916 die_license_disabled gpl libcdio
2917 die_license_disabled gpl libutvideo
2918 die_license_disabled gpl libx264
2919 die_license_disabled gpl libxavs
2920 die_license_disabled gpl libxvid
2921 die_license_disabled gpl x11grab
2922
2923 die_license_disabled nonfree libaacplus
2924 die_license_disabled nonfree libfaac
2925 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
2926 enabled gpl && die_license_disabled_gpl nonfree openssl
2927
2928 die_license_disabled version3 libopencore_amrnb
2929 die_license_disabled version3 libopencore_amrwb
2930 die_license_disabled version3 libvo_aacenc
2931 die_license_disabled version3 libvo_amrwbenc
2932
2933 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2934
2935 disabled optimizations || check_cflags -fomit-frame-pointer
2936
2937 enable_pic() {
2938     enable pic
2939     add_cppflags -DPIC
2940     add_cflags   -fPIC
2941     add_asflags  -fPIC
2942 }
2943
2944 enabled pic && enable_pic
2945
2946 check_cc <<EOF || die "Symbol mangling check failed."
2947 int ff_extern;
2948 EOF
2949 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2950 extern_prefix=${sym%%ff_extern*}
2951
2952 check_cc <<EOF && enable inline_asm
2953 void foo(void) { __asm__ volatile ("" ::); }
2954 EOF
2955
2956 _restrict=
2957 for restrict_keyword in restrict __restrict__ __restrict; do
2958     check_cc <<EOF && _restrict=$restrict_keyword && break
2959 void foo(char * $restrict_keyword p);
2960 EOF
2961 done
2962
2963 check_cc <<EOF && enable attribute_packed
2964 struct { int x; } __attribute__((packed)) x;
2965 EOF
2966
2967 check_cc <<EOF && enable attribute_may_alias
2968 union { int x; } __attribute__((may_alias)) x;
2969 EOF
2970
2971 check_cc <<EOF || die "endian test failed"
2972 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2973 EOF
2974 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2975
2976 if enabled alpha; then
2977
2978     check_cflags -mieee
2979
2980 elif enabled arm; then
2981
2982     enabled thumb && check_cflags -mthumb || check_cflags -marm
2983     nogas=die
2984
2985     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2986         enable vfp_args
2987     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2988         case "${cross_prefix:-$cc}" in
2989             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2990             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2991 __asm__ (".eabi_attribute 28, 1");
2992 int main(void) { return 0; }
2993 EOF
2994         esac
2995         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2996     fi
2997
2998     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2999     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
3000     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
3001     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
3002     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
3003     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
3004
3005     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3006
3007     enabled_all armv6t2 shared !pic && enable_pic
3008
3009 elif enabled mips; then
3010
3011     check_asm loongson '"dmult.g $1, $2, $3"'
3012     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
3013     enabled mips32r2  && add_cflags "-mips32r2" &&
3014      check_asm mips32r2  '"rotr $t0, $t1, 1"'
3015     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3016      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3017     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3018      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3019     enabled mipsfpu   && add_cflags "-mhard-float" &&
3020      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3021
3022
3023 elif enabled ppc; then
3024
3025     enable local_aligned_8 local_aligned_16
3026
3027     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3028     check_asm ibm_asm   '"add 0, 0, 0"'
3029     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3030     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3031
3032     # AltiVec flags: The FSF version of GCC differs from the Apple version
3033     if enabled altivec; then
3034         nogas=warn
3035         check_cflags -maltivec -mabi=altivec &&
3036         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3037         check_cflags -faltivec
3038
3039         # check if our compiler supports Motorola AltiVec C API
3040         check_cc <<EOF || disable altivec
3041 $inc_altivec_h
3042 int main(void) {
3043     vector signed int v1, v2, v3;
3044     v1 = vec_add(v2,v3);
3045     return 0;
3046 }
3047 EOF
3048
3049         # check if our compiler supports braces for vector declarations
3050         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3051 $inc_altivec_h
3052 int main (void) { (vector int) {1}; return 0; }
3053 EOF
3054     fi
3055
3056 elif enabled sparc; then
3057
3058     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3059         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3060
3061 elif enabled x86; then
3062
3063     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3064     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3065     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3066     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3067
3068     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3069
3070     enable local_aligned_8 local_aligned_16
3071
3072     # check whether EBP is available on x86
3073     # As 'i' is stored on the stack, this program will crash
3074     # if the base pointer is used to access it because the
3075     # base pointer is cleared in the inline assembly code.
3076     check_exec_crash <<EOF && enable ebp_available
3077     volatile int i=0;
3078     __asm__ volatile (
3079         "xorl %%ebp, %%ebp"
3080     ::: "%ebp");
3081     return i;
3082 EOF
3083
3084     # check whether EBX is available on x86
3085     check_asm ebx_available '""::"b"(0)' &&
3086         check_asm ebx_available '"":::"%ebx"'
3087
3088     # check whether xmm clobbers are supported
3089     check_asm xmm_clobbers '"":::"%xmm0"'
3090
3091     # check whether binutils is new enough to compile SSSE3/MMX2
3092     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3093     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3094
3095     if ! disabled_any asm mmx yasm; then
3096         if check_cmd $yasmexe --version; then
3097             enabled x86_64 && yasm_extra="-m amd64"
3098             yasm_debug="-g dwarf2"
3099         elif check_cmd nasm -v; then
3100             yasmexe=nasm
3101             yasm_debug="-g -F dwarf"
3102             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3103         fi
3104
3105         YASMFLAGS="-f $objformat $yasm_extra"
3106         enabled pic               && append YASMFLAGS "-DPIC"
3107         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3108         case "$objformat" in
3109             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3110         esac
3111
3112         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3113             die "yasm not found, use --disable-yasm for a crippled build"
3114         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3115     fi
3116
3117     case "$cpu" in
3118         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3119             disable fast_clz
3120         ;;
3121     esac
3122
3123 fi
3124
3125 if enabled asm; then
3126     as=${gas:=$as}
3127     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3128         $nogas "GNU assembler not found, install gas-preprocessor"
3129 fi
3130
3131 check_ldflags -Wl,--as-needed
3132
3133 if check_func dlopen; then
3134     ldl=
3135 elif check_func dlopen -ldl; then
3136     ldl=-ldl
3137 fi
3138
3139 if enabled network; then
3140     check_type "sys/types.h sys/socket.h" socklen_t
3141     check_type netdb.h "struct addrinfo"
3142     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3143     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3144     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3145     check_type netinet/in.h "struct sockaddr_in6"
3146     check_type poll.h "struct pollfd"
3147     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3148     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3149     check_header netinet/sctp.h
3150     check_func getaddrinfo $network_extralibs
3151     # Prefer arpa/inet.h over winsock2
3152     if check_header arpa/inet.h ; then
3153         check_func closesocket
3154     elif check_header winsock2.h ; then
3155         check_func_headers winsock2.h closesocket -lws2 &&
3156             network_extralibs="-lws2" ||
3157         { check_func_headers winsock2.h closesocket -lws2_32 &&
3158             network_extralibs="-lws2_32"; }
3159         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3160         check_type ws2tcpip.h socklen_t
3161         check_type ws2tcpip.h "struct addrinfo"
3162         check_type ws2tcpip.h "struct group_source_req"
3163         check_type ws2tcpip.h "struct ip_mreq_source"
3164         check_type ws2tcpip.h "struct ipv6_mreq"
3165         check_type winsock2.h "struct pollfd"
3166         check_type ws2tcpip.h "struct sockaddr_in6"
3167         check_type ws2tcpip.h "struct sockaddr_storage"
3168         check_struct winsock2.h "struct sockaddr" sa_len
3169     else
3170         disable network
3171     fi
3172 fi
3173
3174 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3175 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3176
3177 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3178 check_func  fcntl
3179 check_func  fork
3180 check_func  gethrtime
3181 check_func  getopt
3182 check_func  getrusage
3183 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3184 check_func  gettimeofday
3185 check_func  inet_aton $network_extralibs
3186 check_func  isatty
3187 check_func  localtime_r
3188 check_func  ${malloc_prefix}memalign            && enable memalign
3189 check_func  mkstemp
3190 check_func  mmap
3191 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3192 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3193 check_func  setrlimit
3194 check_func  strerror_r
3195 check_func  strptime
3196 check_func  sched_getaffinity
3197 check_func  sysconf
3198 check_func  sysctl
3199 check_func  usleep
3200 check_func_headers conio.h kbhit
3201 check_func_headers windows.h PeekNamedPipe
3202 check_func_headers io.h setmode
3203 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3204 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3205 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3206 check_func_headers windows.h GetProcessAffinityMask
3207 check_func_headers windows.h GetProcessTimes
3208 check_func_headers windows.h GetSystemTimeAsFileTime
3209 check_func_headers windows.h MapViewOfFile
3210 check_func_headers windows.h Sleep
3211 check_func_headers windows.h VirtualAlloc
3212 check_func_headers glob.h glob
3213
3214 check_header dlfcn.h
3215 check_header dxva.h
3216 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3217 check_header libcrystalhd/libcrystalhd_if.h
3218 check_header malloc.h
3219 check_header poll.h
3220 check_header sys/mman.h
3221 check_header sys/param.h
3222 check_header sys/resource.h
3223 check_header sys/select.h
3224 check_header sys/time.h
3225 check_header termios.h
3226 check_header unistd.h
3227 check_header vdpau/vdpau.h
3228 check_header vdpau/vdpau_x11.h
3229 check_header windows.h
3230 check_header X11/extensions/XvMClib.h
3231 check_header asm/types.h
3232
3233 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3234 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3235
3236 # check for VDA header
3237 if ! disabled vda; then
3238     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3239         enable vda
3240         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3241     fi
3242 fi
3243
3244 if ! disabled w32threads && ! enabled pthreads; then
3245     check_func _beginthreadex && enable w32threads
3246 fi
3247
3248 # check for some common methods of building with pthread support
3249 # do this before the optional library checks as some of them require pthreads
3250 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3251     enable pthreads
3252     if check_func pthread_create; then
3253         :
3254     elif check_func pthread_create -pthread; then
3255         add_cflags -pthread
3256         add_extralibs -pthread
3257     elif check_func pthread_create -pthreads; then
3258         add_cflags -pthreads
3259         add_extralibs -pthreads
3260     elif check_func pthread_create -lpthreadGC2; then
3261         add_extralibs -lpthreadGC2
3262     elif ! check_lib pthread.h pthread_create -lpthread; then
3263         disable pthreads
3264     fi
3265 fi
3266
3267 for thread in $THREADS_LIST; do
3268     if enabled $thread; then
3269         test -n "$thread_type" &&
3270             die "ERROR: Only one thread type must be selected." ||
3271             thread_type="$thread"
3272     fi
3273 done
3274
3275 if enabled pthreads; then
3276   check_func pthread_cancel
3277 fi
3278
3279 check_lib math.h sin -lm && LIBM="-lm"
3280 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3281 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3282
3283 check_mathfunc cbrtf
3284 check_mathfunc exp2
3285 check_mathfunc exp2f
3286 check_mathfunc isinf
3287 check_mathfunc isnan
3288 check_mathfunc llrint
3289 check_mathfunc llrintf
3290 check_mathfunc log2
3291 check_mathfunc log2f
3292 check_mathfunc lrint
3293 check_mathfunc lrintf
3294 check_mathfunc rint
3295 check_mathfunc round
3296 check_mathfunc roundf
3297 check_mathfunc trunc
3298 check_mathfunc truncf
3299
3300 # these are off by default, so fail if requested and not available
3301 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3302 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3303 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3304 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3305 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3306 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3307 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3308 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3309 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3310                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3311                         die "ERROR: libcelt version must be >= 0.11.0."; }
3312 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3313 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3314 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3315 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3316 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3317 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3318 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3319 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3320 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3321 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3322 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3323 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3324 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3325 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3326 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3327 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3328 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3329     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3330     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3331 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3332 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3333 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3334 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3335 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3336 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3337 enabled libvpx     && {
3338     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3339                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3340     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3341                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3342 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3343                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3344                         die "ERROR: libx264 version must be >= 0.118."; }
3345 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3346 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3347 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3348                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3349                         die "ERROR: openal not found"; } &&
3350                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3351                         die "ERROR: openal version must be 1.1 or compatible"; }
3352 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3353                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3354                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3355                         die "ERROR: openssl not found"; }
3356
3357 # libdc1394 check
3358 if enabled libdc1394; then
3359     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3360         enable libdc1394_2; } ||
3361     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3362         enable libdc1394_1; } ||
3363     die "ERROR: No version of libdc1394 found "
3364 fi
3365
3366 SDL_CONFIG="${cross_prefix}sdl-config"
3367 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3368     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3369     enable sdl &&
3370     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3371 else
3372   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3373     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3374     sdl_libs=$("${SDL_CONFIG}" --libs)
3375     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3376     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3377     enable sdl &&
3378     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3379   fi
3380 fi
3381 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3382
3383 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3384 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3385 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3386
3387 check_header linux/fb.h
3388 check_header linux/videodev.h
3389 check_header linux/videodev2.h
3390 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3391
3392 check_header sys/videoio.h
3393
3394 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3395 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3396 # w32api 3.12 had it defined wrong
3397 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3398
3399 check_type "dshow.h" IBaseFilter
3400
3401 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3402 { check_header dev/bktr/ioctl_meteor.h &&
3403   check_header dev/bktr/ioctl_bt848.h; } ||
3404 { check_header machine/ioctl_meteor.h &&
3405   check_header machine/ioctl_bt848.h; } ||
3406 { check_header dev/video/meteor/ioctl_meteor.h &&
3407   check_header dev/video/bktr/ioctl_bt848.h; } ||
3408 check_header dev/ic/bt8xx.h
3409
3410 check_header sndio.h
3411 if check_struct sys/soundcard.h audio_buf_info bytes; then
3412     enable_safe sys/soundcard.h
3413 else
3414     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3415     #include <sys/soundcard.h>
3416     audio_buf_info abc;
3417 EOF
3418 fi
3419 check_header soundcard.h
3420
3421 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3422
3423 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3424     check_func jack_port_get_latency_range -ljack
3425
3426 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3427
3428 enabled libcdio &&
3429     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3430
3431 enabled x11grab                                           &&
3432 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3433 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3434 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3435
3436 if ! disabled vaapi; then
3437     check_lib va/va.h vaInitialize -lva && {
3438         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3439         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3440     } || disable vaapi
3441 fi
3442
3443 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3444 check_cpp_condition \
3445     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3446     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3447       disable vdpau; }
3448 fi
3449
3450 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3451 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3452 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"
3453
3454 # add some useful compiler flags if supported
3455 check_cflags -Wdeclaration-after-statement
3456 check_cflags -Wall
3457 check_cflags -Wno-parentheses
3458 check_cflags -Wno-switch
3459 check_cflags -Wno-format-zero-length
3460 check_cflags -Wdisabled-optimization
3461 check_cflags -Wpointer-arith
3462 check_cflags -Wredundant-decls
3463 check_cflags -Wno-pointer-sign
3464 check_cflags -Wwrite-strings
3465 check_cflags -Wtype-limits
3466 check_cflags -Wundef
3467 check_cflags -Wmissing-prototypes
3468 check_cflags -Wno-pointer-to-int-cast
3469 check_cflags -Wstrict-prototypes
3470 enabled extra_warnings && check_cflags -Winline
3471
3472 # add some linker flags
3473 check_ldflags -Wl,--warn-common
3474 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3475 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3476
3477 enabled xmm_clobber_test &&
3478     check_ldflags -Wl,--wrap,avcodec_open2              \
3479                   -Wl,--wrap,avcodec_decode_audio4      \
3480                   -Wl,--wrap,avcodec_decode_video2      \
3481                   -Wl,--wrap,avcodec_decode_subtitle2   \
3482                   -Wl,--wrap,avcodec_encode_audio2      \
3483                   -Wl,--wrap,avcodec_encode_video       \
3484                   -Wl,--wrap,avcodec_encode_subtitle    \
3485                   -Wl,--wrap,sws_scale ||
3486     disable xmm_clobber_test
3487
3488 echo "X{};" > $TMPV
3489 if test_ldflags -Wl,--version-script,$TMPV; then
3490     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3491     check_cc <<EOF && enable symver_asm_label
3492 void ff_foo(void) __asm__ ("av_foo@VERSION");
3493 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3494 EOF
3495     check_cc <<EOF && enable symver_gnu_asm
3496 __asm__(".symver ff_foo,av_foo@VERSION");
3497 void ff_foo(void) {}
3498 EOF
3499 fi
3500
3501 if [ -n "$optflags" ]; then
3502     add_cflags $optflags
3503 elif enabled small; then
3504     add_cflags $size_cflags
3505 elif enabled optimizations; then
3506     add_cflags $speed_cflags
3507 else
3508     add_cflags $noopt_cflags
3509 fi
3510 check_cflags -fno-math-errno
3511 check_cflags -fno-signed-zeros
3512 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3513 int x;
3514 EOF
3515
3516
3517 if enabled icc; then
3518     # Just warnings, no remarks
3519     check_cflags -w1
3520     # -wd: Disable following warnings
3521     # 144, 167, 556: -Wno-pointer-sign
3522     # 1292: attribute "foo" ignored
3523     # 1419: external declaration in primary source file
3524     # 10006: ignoring unknown option -fno-signed-zeros
3525     # 10148: ignoring unknown option -Wno-parentheses
3526     # 10156: ignoring option '-W'; no argument required
3527     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3528     # 11030: Warning unknown option --as-needed
3529     # 10156: ignoring option '-export'; no argument required
3530     check_ldflags -wd10156,11030
3531     # Allow to compile with optimizations
3532     check_ldflags -march=$cpu
3533     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3534     enable ebp_available
3535     if enabled x86_32; then
3536         test ${icc_version%%.*} -ge 11 &&
3537             check_cflags -falign-stack=maintain-16-byte ||
3538             disable aligned_stack
3539     fi
3540 elif enabled ccc; then
3541     # disable some annoying warnings
3542     add_cflags -msg_disable cvtu32to64
3543     add_cflags -msg_disable embedcomment
3544     add_cflags -msg_disable needconstext
3545     add_cflags -msg_disable nomainieee
3546     add_cflags -msg_disable ptrmismatch1
3547     add_cflags -msg_disable unreachcode
3548 elif enabled gcc; then
3549     check_cflags -fno-tree-vectorize
3550     check_cflags -Werror=implicit-function-declaration
3551     check_cflags -Werror=missing-prototypes
3552 elif enabled llvm_gcc; then
3553     check_cflags -mllvm -stack-alignment=16
3554 elif enabled clang; then
3555     check_cflags -mllvm -stack-alignment=16
3556     check_cflags -Qunused-arguments
3557 elif enabled armcc; then
3558     # 2523: use of inline assembler is deprecated
3559     add_cflags -W${armcc_opt},--diag_suppress=2523
3560     add_cflags -W${armcc_opt},--diag_suppress=1207
3561     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3562     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3563     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3564     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3565 elif enabled tms470; then
3566     add_cflags -pds=824 -pds=837
3567 elif enabled pathscale; then
3568     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3569 fi
3570
3571 enabled_any $THREADS_LIST      && enable threads
3572
3573 check_deps $CONFIG_LIST       \
3574            $CONFIG_EXTRA      \
3575            $HAVE_LIST         \
3576            $ALL_COMPONENTS    \
3577            $ALL_TESTS         \
3578
3579 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3580
3581 if test $target_os = "haiku"; then
3582     disable memalign
3583     disable posix_memalign
3584 fi
3585
3586 ! enabled_any memalign posix_memalign aligned_malloc &&
3587     enabled_any $need_memalign && enable memalign_hack
3588
3589 # add_dep lib dep
3590 # -> enable ${lib}_deps_${dep}
3591 # -> add $dep to ${lib}_deps only once
3592 add_dep() {
3593     lib=$1
3594     dep=$2
3595     enabled "${lib}_deps_${dep}" && return 0
3596     enable  "${lib}_deps_${dep}"
3597     prepend "${lib}_deps" $dep
3598 }
3599
3600 # merge deps lib components
3601 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3602 merge_deps() {
3603     lib=$1
3604     shift
3605     for comp in $*; do
3606         enabled $comp || continue
3607         eval "dep=\"\$${comp}_deps\""
3608         for d in $dep; do
3609             add_dep $lib $d
3610         done
3611     done
3612 }
3613
3614 merge_deps libavfilter $FILTER_LIST
3615
3616 echo "install prefix            $prefix"
3617 echo "source path               $source_path"
3618 echo "C compiler                $cc"
3619 echo "ARCH                      $arch ($cpu)"
3620 if test "$build_suffix" != ""; then
3621     echo "build suffix              $build_suffix"
3622 fi
3623 if test "$progs_suffix" != ""; then
3624     echo "progs suffix              $progs_suffix"
3625 fi
3626 if test "$extra_version" != ""; then
3627     echo "version string suffix     $extra_version"
3628 fi
3629 echo "big-endian                ${bigendian-no}"
3630 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3631 if enabled x86; then
3632     echo "${yasmexe}                      ${yasm-no}"
3633     echo "MMX enabled               ${mmx-no}"
3634     echo "MMX2 enabled              ${mmx2-no}"
3635     echo "3DNow! enabled            ${amd3dnow-no}"
3636     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3637     echo "SSE enabled               ${sse-no}"
3638     echo "SSSE3 enabled             ${ssse3-no}"
3639     echo "AVX enabled               ${avx-no}"
3640     echo "CMOV enabled              ${cmov-no}"
3641     echo "CMOV is fast              ${fast_cmov-no}"
3642     echo "EBX available             ${ebx_available-no}"
3643     echo "EBP available             ${ebp_available-no}"
3644 fi
3645 if enabled arm; then
3646     echo "ARMv5TE enabled           ${armv5te-no}"
3647     echo "ARMv6 enabled             ${armv6-no}"
3648     echo "ARMv6T2 enabled           ${armv6t2-no}"
3649     echo "ARM VFP enabled           ${armvfp-no}"
3650     echo "NEON enabled              ${neon-no}"
3651 fi
3652 if enabled mips; then
3653     echo "MMI enabled               ${mmi-no}"
3654     echo "MIPS FPU enabled          ${mipsfpu-no}"
3655     echo "MIPS32R2 enabled          ${mips32r2-no}"
3656     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3657     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3658 fi
3659 if enabled ppc; then
3660     echo "AltiVec enabled           ${altivec-no}"
3661     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3662     echo "dcbzl available           ${dcbzl-no}"
3663 fi
3664 if enabled sparc; then
3665     echo "VIS enabled               ${vis-no}"
3666 fi
3667 echo "debug symbols             ${debug-no}"
3668 echo "strip symbols             ${stripping-no}"
3669 echo "optimize for size         ${small-no}"
3670 echo "optimizations             ${optimizations-no}"
3671 echo "static                    ${static-no}"
3672 echo "shared                    ${shared-no}"
3673 echo "postprocessing support    ${postproc-no}"
3674 echo "new filter support        ${avfilter-no}"
3675 echo "network support           ${network-no}"
3676 echo "threading support         ${thread_type-no}"
3677 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3678 echo "SDL support               ${sdl-no}"
3679 echo "libdxva2 enabled          ${dxva2-no}"
3680 echo "libva enabled             ${vaapi-no}"
3681 echo "libvdpau enabled          ${vdpau-no}"
3682 echo "AVISynth enabled          ${avisynth-no}"
3683 echo "frei0r enabled            ${frei0r-no}"
3684 echo "gnutls enabled            ${gnutls-no}"
3685 echo "libaacplus enabled        ${libaacplus-no}"
3686 echo "libass enabled            ${libass-no}"
3687 echo "libcdio support           ${libcdio-no}"
3688 echo "libcelt enabled           ${libcelt-no}"
3689 echo "libdc1394 support         ${libdc1394-no}"
3690 echo "libfaac enabled           ${libfaac-no}"
3691 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3692 echo "libgsm enabled            ${libgsm-no}"
3693 echo "libiec61883 support       ${libiec61883-no}"
3694 echo "libilbc enabled           ${libilbc-no}"
3695 echo "libmodplug enabled        ${libmodplug-no}"
3696 echo "libmp3lame enabled        ${libmp3lame-no}"
3697 echo "libnut enabled            ${libnut-no}"
3698 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3699 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3700 echo "libopencv support         ${libopencv-no}"
3701 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3702 echo "libpulse enabled          ${libpulse-no}"
3703 echo "librtmp enabled           ${librtmp-no}"
3704 echo "libschroedinger enabled   ${libschroedinger-no}"
3705 echo "libspeex enabled          ${libspeex-no}"
3706 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3707 echo "libtheora enabled         ${libtheora-no}"
3708 echo "libutvideo enabled        ${libutvideo-no}"
3709 echo "libv4l2 enabled           ${libv4l2-no}"
3710 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3711 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3712 echo "libvorbis enabled         ${libvorbis-no}"
3713 echo "libvpx enabled            ${libvpx-no}"
3714 echo "libx264 enabled           ${libx264-no}"
3715 echo "libxavs enabled           ${libxavs-no}"
3716 echo "libxvid enabled           ${libxvid-no}"
3717 echo "openal enabled            ${openal-no}"
3718 echo "openssl enabled           ${openssl-no}"
3719 echo "zlib enabled              ${zlib-no}"
3720 echo "bzlib enabled             ${bzlib-no}"
3721 echo "texi2html enabled         ${texi2html-no}"
3722 echo "pod2man enabled           ${pod2man-no}"
3723 echo "makeinfo enabled          ${makeinfo-no}"
3724 test -n "$random_seed" &&
3725     echo "random seed               ${random_seed}"
3726 echo
3727
3728 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3729     echo "Enabled ${type}s:"
3730     eval list=\$$(toupper $type)_LIST
3731     print_enabled '_*' $list | sort | pr -r -3 -t
3732     echo
3733 done
3734
3735 license="LGPL version 2.1 or later"
3736 if enabled nonfree; then
3737     license="nonfree and unredistributable"
3738 elif enabled gplv3; then
3739     license="GPL version 3 or later"
3740 elif enabled lgplv3; then
3741     license="LGPL version 3 or later"
3742 elif enabled gpl; then
3743     license="GPL version 2 or later"
3744 fi
3745
3746 echo "License: $license"
3747
3748 echo "Creating config.mak and config.h..."
3749
3750 test -e Makefile || $ln_s "$source_path/Makefile" .
3751
3752 enabled stripping || strip="echo skipping strip"
3753
3754 config_files="$TMPH config.mak"
3755
3756 cat > config.mak <<EOF
3757 # Automatically generated by configure - do not modify!
3758 ifndef FFMPEG_CONFIG_MAK
3759 FFMPEG_CONFIG_MAK=1
3760 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3761 prefix=$prefix
3762 LIBDIR=\$(DESTDIR)$libdir
3763 SHLIBDIR=\$(DESTDIR)$shlibdir
3764 INCDIR=\$(DESTDIR)$incdir
3765 BINDIR=\$(DESTDIR)$bindir
3766 DATADIR=\$(DESTDIR)$datadir
3767 MANDIR=\$(DESTDIR)$mandir
3768 SRC_PATH=$source_path
3769 ifndef MAIN_MAKEFILE
3770 SRC_PATH:=\$(SRC_PATH:.%=..%)
3771 endif
3772 CC_IDENT=$cc_ident
3773 ARCH=$arch
3774 CC=$cc
3775 CXX=$cxx
3776 AS=$as
3777 LD=$ld
3778 DEPCC=$dep_cc
3779 YASM=$yasmexe
3780 YASMDEP=$yasmexe
3781 AR=$ar
3782 RANLIB=$ranlib
3783 CP=cp -p
3784 LN_S=$ln_s
3785 STRIP=$strip
3786 CPPFLAGS=$CPPFLAGS
3787 CFLAGS=$CFLAGS
3788 CXXFLAGS=$CXXFLAGS
3789 ASFLAGS=$ASFLAGS
3790 AS_O=$CC_O
3791 CC_O=$CC_O
3792 CXX_O=$CXX_O
3793 LDFLAGS=$LDFLAGS
3794 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3795 SHFLAGS=$SHFLAGS
3796 YASMFLAGS=$YASMFLAGS
3797 BUILDSUF=$build_suffix
3798 PROGSSUF=$progs_suffix
3799 FULLNAME=$FULLNAME
3800 LIBPREF=$LIBPREF
3801 LIBSUF=$LIBSUF
3802 LIBNAME=$LIBNAME
3803 SLIBPREF=$SLIBPREF
3804 SLIBSUF=$SLIBSUF
3805 EXESUF=$EXESUF
3806 EXTRA_VERSION=$extra_version
3807 DEPFLAGS=$DEPFLAGS
3808 CCDEP=$CCDEP
3809 CXXDEP=$CXXDEP
3810 ASDEP=$ASDEP
3811 CC_DEPFLAGS=$CC_DEPFLAGS
3812 AS_DEPFLAGS=$AS_DEPFLAGS
3813 HOSTCC=$host_cc
3814 HOSTCFLAGS=$host_cflags
3815 HOSTEXESUF=$HOSTEXESUF
3816 HOSTLDFLAGS=$host_ldflags
3817 HOSTLIBS=$host_libs
3818 TARGET_EXEC=$target_exec
3819 TARGET_PATH=$target_path
3820 SDL_LIBS=$sdl_libs
3821 SDL_CFLAGS=$sdl_cflags
3822 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3823 EXTRALIBS=$extralibs
3824 INSTALL=$install
3825 LIBTARGET=${LIBTARGET}
3826 SLIBNAME=${SLIBNAME}
3827 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3828 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3829 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3830 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3831 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3832 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3833 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3834 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3835 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3836 NOREDZONE_FLAGS=$noredzone_flags
3837 EOF
3838
3839 get_version(){
3840     lcname=$1
3841     name=$(toupper $lcname)
3842     file=$source_path/$lcname/version.h
3843     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3844     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3845     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3846     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3847 }
3848
3849 get_version_old(){
3850     name=$1
3851     file=$source_path/$2
3852 # This condition will be removed when we stop supporting old libpostproc versions
3853 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3854     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3855     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3856 fi
3857     lcname=$(tolower $name)
3858     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3859     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3860 }
3861
3862 get_version_old LIBPOSTPROC libpostproc/postprocess.h
3863 get_version_old LIBSWRESAMPLE libswresample/swresample.h
3864
3865 get_version libavcodec
3866 get_version libavdevice
3867 get_version libavfilter
3868 get_version libavformat
3869 get_version libavresample
3870 get_version libavutil
3871 get_version libswscale
3872
3873 cat > $TMPH <<EOF
3874 /* Automatically generated by configure - do not modify! */
3875 #ifndef FFMPEG_CONFIG_H
3876 #define FFMPEG_CONFIG_H
3877 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3878 #define FFMPEG_LICENSE "$(c_escape $license)"
3879 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3880 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3881 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
3882 #define av_restrict $_restrict
3883 #define EXTERN_PREFIX "${extern_prefix}"
3884 #define EXTERN_ASM ${extern_prefix}
3885 #define SLIBSUF "$SLIBSUF"
3886 EOF
3887
3888 test -n "$assert_level" &&
3889     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3890
3891 test -n "$malloc_prefix" &&
3892     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3893
3894 if enabled yasm; then
3895     append config_files $TMPASM
3896     printf '' >$TMPASM
3897 fi
3898
3899 print_config ARCH_   "$config_files" $ARCH_LIST
3900 print_config HAVE_   "$config_files" $HAVE_LIST
3901 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3902                                      $CONFIG_EXTRA      \
3903                                      $ALL_COMPONENTS    \
3904
3905 cat >>config.mak <<EOF
3906 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3907 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3908 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3909 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3910 EOF
3911
3912 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3913 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3914
3915 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3916 cp_if_changed $TMPH config.h
3917 touch .config
3918
3919 enabled yasm && cp_if_changed $TMPASM config.asm
3920
3921 cat > $TMPH <<EOF
3922 /* Generated by ffconf */
3923 #ifndef AVUTIL_AVCONFIG_H
3924 #define AVUTIL_AVCONFIG_H
3925 EOF
3926
3927 test "$postproc_version" != current && cat >> $TMPH <<EOF
3928 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3929 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3930 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3931 EOF
3932
3933 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3934
3935 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3936
3937 cp_if_changed $TMPH libavutil/avconfig.h
3938
3939 test -n "$WARNINGS" && printf "\n$WARNINGS"
3940
3941 # build pkg-config files
3942
3943 pkgconfig_generate(){
3944 name=$1
3945 shortname=${name#lib}${build_suffix}
3946 comment=$2
3947 version=$3
3948 libs=$4
3949 requires=$5
3950 enabled ${name#lib} || return 0
3951 mkdir -p $name
3952 cat <<EOF > $name/$name.pc
3953 prefix=$prefix
3954 exec_prefix=\${prefix}
3955 libdir=$libdir
3956 includedir=$incdir
3957
3958 Name: $name
3959 Description: $comment
3960 Version: $version
3961 Requires: $(enabled shared || echo $requires)
3962 Requires.private: $(enabled shared && echo $requires)
3963 Conflicts:
3964 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3965 Libs.private: $(enabled shared && echo $libs)
3966 Cflags: -I\${includedir}
3967 EOF
3968
3969 mkdir -p doc/examples/pc-uninstalled
3970 includedir=${source_path}
3971 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
3972 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
3973 prefix=
3974 exec_prefix=
3975 libdir=\${pcfiledir}/../../../$name
3976 includedir=${includedir}
3977
3978 Name: $name
3979 Description: $comment
3980 Version: $version
3981 Requires: $requires
3982 Conflicts:
3983 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3984 Cflags: -I\${includedir}
3985 EOF
3986 }
3987
3988 libavfilter_pc_deps=""
3989 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
3990 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
3991 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
3992 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
3993 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
3994 libavfilter_pc_deps=${libavfilter_pc_deps%, }
3995
3996 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
3997 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
3998
3999 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4000 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4001 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4002 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4003 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4004 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4005 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4006 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4007 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"