Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Component options:
103   --disable-doc            do not build documentation
104   --disable-ffmpeg         disable ffmpeg build
105   --disable-ffplay         disable ffplay build
106   --disable-ffprobe        disable ffprobe build
107   --disable-ffserver       disable ffserver build
108   --disable-avdevice       disable libavdevice build
109   --disable-avcodec        disable libavcodec build
110   --disable-avformat       disable libavformat build
111   --disable-swresample     disable libswresample build
112   --disable-swscale        disable libswscale build
113   --disable-postproc       disable libpostproc build
114   --disable-avfilter       disable video filter support [no]
115   --enable-avresample      enable libavresample build [no]
116   --disable-pthreads       disable pthreads [auto]
117   --disable-w32threads     disable Win32 threads [auto]
118   --disable-os2threads     disable OS/2 threads [auto]
119   --enable-x11grab         enable X11 grabbing [no]
120   --disable-network        disable network support [no]
121   --disable-dct            disable DCT code
122   --disable-mdct           disable MDCT code
123   --disable-rdft           disable RDFT code
124   --disable-fft            disable FFT code
125   --enable-dxva2           enable DXVA2 code
126   --enable-vaapi           enable VAAPI code [autodetect]
127   --enable-vda             enable VDA code   [autodetect]
128   --enable-vdpau           enable VDPAU code [autodetect]
129
130 Individual component options:
131   --disable-everything     disable all components listed below
132   --disable-encoder=NAME   disable encoder NAME
133   --enable-encoder=NAME    enable encoder NAME
134   --disable-encoders       disable all encoders
135   --disable-decoder=NAME   disable decoder NAME
136   --enable-decoder=NAME    enable decoder NAME
137   --disable-decoders       disable all decoders
138   --disable-hwaccel=NAME   disable hwaccel NAME
139   --enable-hwaccel=NAME    enable hwaccel NAME
140   --disable-hwaccels       disable all hwaccels
141   --disable-muxer=NAME     disable muxer NAME
142   --enable-muxer=NAME      enable muxer NAME
143   --disable-muxers         disable all muxers
144   --disable-demuxer=NAME   disable demuxer NAME
145   --enable-demuxer=NAME    enable demuxer NAME
146   --disable-demuxers       disable all demuxers
147   --enable-parser=NAME     enable parser NAME
148   --disable-parser=NAME    disable parser NAME
149   --disable-parsers        disable all parsers
150   --enable-bsf=NAME        enable bitstream filter NAME
151   --disable-bsf=NAME       disable bitstream filter NAME
152   --disable-bsfs           disable all bitstream filters
153   --enable-protocol=NAME   enable protocol NAME
154   --disable-protocol=NAME  disable protocol NAME
155   --disable-protocols      disable all protocols
156   --enable-indev=NAME      enable input device NAME
157   --disable-indev=NAME     disable input device NAME
158   --disable-indevs         disable input devices
159   --enable-outdev=NAME     enable output device NAME
160   --disable-outdev=NAME    disable output device NAME
161   --disable-outdevs        disable output devices
162   --disable-devices        disable all devices
163   --enable-filter=NAME     enable filter NAME
164   --disable-filter=NAME    disable filter NAME
165   --disable-filters        disable all filters
166
167 External library support:
168   --enable-avisynth        enable reading of AVISynth script files [no]
169   --enable-bzlib           enable bzlib [autodetect]
170   --enable-fontconfig      enable fontconfig
171   --enable-frei0r          enable frei0r video filtering
172   --enable-gnutls          enable gnutls [no]
173   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
174   --enable-libass          enable libass subtitles rendering [no]
175   --enable-libbluray       enable BluRay reading using libbluray [no]
176   --enable-libcelt         enable CELT decoding via libcelt [no]
177   --enable-libcdio         enable audio CD grabbing with libcdio
178   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
179                            and libraw1394 [no]
180   --enable-libfaac         enable FAAC support via libfaac [no]
181   --enable-libfdk-aac      enable AAC support via libfdk-aac [no]
182   --enable-libfreetype     enable libfreetype [no]
183   --enable-libgsm          enable GSM support via libgsm [no]
184   --enable-libiec61883     enable iec61883 via libiec61883 [no]
185   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
186   --enable-libmodplug      enable ModPlug via libmodplug [no]
187   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
188   --enable-libnut          enable NUT (de)muxing via libnut,
189                            native (de)muxer exists [no]
190   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
191   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
192   --enable-libopencv       enable video filtering via libopencv [no]
193   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [no]
194   --enable-libpulse        enable Pulseaudio input via libpulse [no]
195   --enable-librtmp         enable RTMP[E] support via librtmp [no]
196   --enable-libschroedinger enable Dirac support via libschroedinger [no]
197   --enable-libspeex        enable Speex support via libspeex [no]
198   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
199   --enable-libtheora       enable Theora encoding via libtheora [no]
200   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
201   --enable-libv4l2         enable libv4l2/v4l-utils [no]
202   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
203   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
204   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
205                            native implementation exists [no]
206   --enable-libvpx          enable VP8 support via libvpx [no]
207   --enable-libx264         enable H.264 encoding via x264 [no]
208   --enable-libxavs         enable AVS encoding via xavs [no]
209   --enable-libxvid         enable Xvid encoding via xvidcore,
210                            native MPEG-4/Xvid encoder exists [no]
211   --enable-openal          enable OpenAL 1.1 capture support [no]
212   --enable-openssl         enable openssl [no]
213   --enable-zlib            enable zlib [autodetect]
214
215 Advanced options (experts only):
216   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
217   --enable-cross-compile   assume a cross-compiler is used
218   --sysroot=PATH           root of cross-build tree
219   --sysinclude=PATH        location of cross-build system headers
220   --target-os=OS           compiler targets OS [$target_os]
221   --target-exec=CMD        command to run executables on target
222   --target-path=DIR        path to view of build directory on target
223   --nm=NM                  use nm tool NM [$nm_default]
224   --ar=AR                  use archive tool AR [$ar_default]
225   --as=AS                  use assembler AS [$as_default]
226   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
227   --cc=CC                  use C compiler CC [$cc_default]
228   --cxx=CXX                use C compiler CXX [$cxx_default]
229   --ld=LD                  use linker LD [$ld_default]
230   --host-cc=HOSTCC         use host C compiler HOSTCC
231   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
232   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
233   --host-libs=HLIBS        use libs HLIBS when linking for host
234   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
235   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
236   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
237   --extra-libs=ELIBS       add ELIBS [$ELIBS]
238   --extra-version=STRING   version string suffix []
239   --optflags               override optimization-related compiler flags
240   --build-suffix=SUFFIX    library name suffix []
241   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
242   --progs-suffix=SUFFIX    program name suffix []
243   --arch=ARCH              select architecture [$arch]
244   --cpu=CPU                select the minimum required CPU (affects
245                            instruction selection, may crash on older CPUs)
246   --enable-pic             build position-independent code
247   --enable-sram            allow use of on-chip SRAM
248   --disable-symver         disable symbol versioning
249   --disable-fastdiv        disable table-based division
250   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
251   --disable-safe-bitstream-reader
252                            disable buffer boundary checking in bitreaders
253                            (faster, but may crash)
254   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
255
256 Optimization options (experts only):
257   --disable-asm            disable all assembler optimizations
258   --disable-altivec        disable AltiVec optimizations
259   --disable-amd3dnow       disable 3DNow! optimizations
260   --disable-amd3dnowext    disable 3DNow! extended optimizations
261   --disable-mmx            disable MMX optimizations
262   --disable-mmx2           disable MMX2 optimizations
263   --disable-sse            disable SSE optimizations
264   --disable-ssse3          disable SSSE3 optimizations
265   --disable-avx            disable AVX optimizations
266   --disable-armv5te        disable armv5te optimizations
267   --disable-armv6          disable armv6 optimizations
268   --disable-armv6t2        disable armv6t2 optimizations
269   --disable-armvfp         disable ARM VFP optimizations
270   --disable-mmi            disable MMI optimizations
271   --disable-neon           disable NEON optimizations
272   --disable-vis            disable VIS optimizations
273   --disable-yasm           disable use of yasm assembler
274   --disable-mips32r2       disable MIPS32R2 optimizations
275   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
276   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
277   --disable-mipsfpu        disable floating point MIPS optimizations
278   --disable-fast-unaligned consider unaligned accesses slow
279   --postproc-version=V     build libpostproc version V.
280                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
281
282 Developer options (useful when working on FFmpeg itself):
283   --enable-coverage        build with test coverage instrumentation
284   --disable-debug          disable debugging symbols
285   --enable-debug=LEVEL     set the debug level [$debuglevel]
286   --disable-optimizations  disable compiler optimizations
287   --enable-extra-warnings  enable more compiler warnings
288   --disable-stripping      disable stripping of executables and shared libraries
289   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
290                            2 causes a slowdown at runtime.
291   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
292   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
293                            leaks and errors, using the specified valgrind binary.
294                            Cannot be combined with --target-exec
295   --samples=PATH           location of test samples for FATE, if not set use
296                            \$FATE_SAMPLES at make invocation time.
297   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
298                            should be used only for debugging purposes)
299   --enable-random          randomly enable/disable components
300   --disable-random
301   --enable-random=LIST     randomly enable/disable specific components or
302   --disable-random=LIST    component groups. LIST is a comma-separated list
303                            of NAME[:PROB] entries where NAME is a component
304                            (group) and PROB the probability associated with
305                            NAME (default 0.5).
306   --random-seed=VALUE      seed value for --enable/disable-random
307
308 NOTE: Object files are built at the place where configure is launched.
309 EOF
310   exit 0
311 }
312
313 quotes='""'
314
315 log(){
316     echo "$@" >> $logfile
317 }
318
319 log_file(){
320     log BEGIN $1
321     pr -n -t $1 >> $logfile
322     log END $1
323 }
324
325 echolog(){
326     log "$@"
327     echo "$@"
328 }
329
330 warn(){
331     log "WARNING: $*"
332     WARNINGS="${WARNINGS}WARNING: $*\n"
333 }
334
335 die(){
336     echolog "$@"
337     cat <<EOF
338
339 If you think configure made a mistake, make sure you are using the latest
340 version from Git.  If the latest version fails, report the problem to the
341 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
342 EOF
343     if disabled logging; then
344         cat <<EOF
345 Rerun configure with logging enabled (do not use --disable-logging), and
346 include the log this produces with your report.
347 EOF
348     else
349 cat <<EOF
350 Include the log file "$logfile" produced by configure as this will help
351 solving the problem.
352 EOF
353     fi
354     exit 1
355 }
356
357 # Avoid locale weirdness, besides we really just want to translate ASCII.
358 toupper(){
359     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
360 }
361
362 tolower(){
363     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
364 }
365
366 c_escape(){
367     echo "$*" | sed 's/["\\]/\\\0/g'
368 }
369
370 sh_quote(){
371     v=$(echo "$1" | sed "s/'/'\\\\''/g")
372     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
373     echo "$v"
374 }
375
376 cleanws(){
377     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
378 }
379
380 filter(){
381     pat=$1
382     shift
383     for v; do
384         eval "case $v in $pat) echo $v ;; esac"
385     done
386 }
387
388 filter_out(){
389     pat=$1
390     shift
391     for v; do
392         eval "case $v in $pat) ;; *) echo $v ;; esac"
393     done
394 }
395
396 map(){
397     m=$1
398     shift
399     for v; do eval $m; done
400 }
401
402 set_all(){
403     value=$1
404     shift
405     for var in $*; do
406         eval $var=$value
407     done
408 }
409
410 set_weak(){
411     value=$1
412     shift
413     for var; do
414         eval : \${$var:=$value}
415     done
416 }
417
418 set_safe(){
419     var=$1
420     shift
421     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
422 }
423
424 get_safe(){
425     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
426 }
427
428 pushvar(){
429     for var in $*; do
430         eval level=\${${var}_level:=0}
431         eval ${var}_${level}="\$$var"
432         eval ${var}_level=$(($level+1))
433     done
434 }
435
436 popvar(){
437     for var in $*; do
438         eval level=\${${var}_level:-0}
439         test $level = 0 && continue
440         eval level=$(($level-1))
441         eval $var="\${${var}_${level}}"
442         eval ${var}_level=$level
443         eval unset ${var}_${level}
444     done
445 }
446
447 enable(){
448     set_all yes $*
449 }
450
451 disable(){
452     set_all no $*
453 }
454
455 enable_weak(){
456     set_weak yes $*
457 }
458
459 disable_weak(){
460     set_weak no $*
461 }
462
463 enable_safe(){
464     for var; do
465         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
466     done
467 }
468
469 disable_safe(){
470     for var; do
471         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
472     done
473 }
474
475 do_enable_deep(){
476     for var; do
477         enabled $var && continue
478         eval sel="\$${var}_select"
479         eval sgs="\$${var}_suggest"
480         pushvar var sgs
481         enable_deep $sel
482         popvar sgs
483         enable_deep_weak $sgs
484         popvar var
485     done
486 }
487
488 enable_deep(){
489     do_enable_deep $*
490     enable $*
491 }
492
493 enable_deep_weak(){
494     do_enable_deep $*
495     enable_weak $*
496 }
497
498 enabled(){
499     test "${1#!}" = "$1" && op== || op=!=
500     eval test "x\$${1#!}" $op "xyes"
501 }
502
503 disabled(){
504     test "${1#!}" = "$1" && op== || op=!=
505     eval test "x\$${1#!}" $op "xno"
506 }
507
508 enabled_all(){
509     for opt; do
510         enabled $opt || return 1
511     done
512 }
513
514 disabled_all(){
515     for opt; do
516         disabled $opt || return 1
517     done
518 }
519
520 enabled_any(){
521     for opt; do
522         enabled $opt && return 0
523     done
524 }
525
526 disabled_any(){
527     for opt; do
528         disabled $opt && return 0
529     done
530     return 1
531 }
532
533 set_default(){
534     for opt; do
535         eval : \${$opt:=\$${opt}_default}
536     done
537 }
538
539 is_in(){
540     value=$1
541     shift
542     for var in $*; do
543         [ $var = $value ] && return 0
544     done
545     return 1
546 }
547
548 check_deps(){
549     for cfg; do
550         cfg="${cfg#!}"
551         enabled ${cfg}_checking && die "Circular dependency for $cfg."
552         disabled ${cfg}_checking && continue
553         enable ${cfg}_checking
554
555         eval dep_all="\$${cfg}_deps"
556         eval dep_any="\$${cfg}_deps_any"
557         eval dep_sel="\$${cfg}_select"
558         eval dep_sgs="\$${cfg}_suggest"
559         eval dep_ifa="\$${cfg}_if"
560         eval dep_ifn="\$${cfg}_if_any"
561
562         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
563         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
564         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
565
566         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
567         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
568         enabled_all  $dep_all || disable $cfg
569         enabled_any  $dep_any || disable $cfg
570         disabled_any $dep_sel && disable $cfg
571
572         if enabled $cfg; then
573             eval dep_extralibs="\$${cfg}_extralibs"
574             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
575             enable_deep $dep_sel
576             enable_deep_weak $dep_sgs
577         fi
578
579         disable ${cfg}_checking
580     done
581 }
582
583 print_config_h(){
584     enabled $1 && v=1 || v=0
585     echo "#define $2 $v"
586 }
587
588 print_config_mak(){
589     enabled $1 && v= || v=!
590     echo "$v$2=yes"
591 }
592
593 print_config_asm(){
594     enabled $1 && v=1 || v=0
595     echo "%define $2 $v"
596 }
597
598 print_config(){
599     pfx=$1
600     files=$2
601     shift 2
602     for cfg; do
603         ucname="$(toupper $cfg)"
604         for f in $files; do
605             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
606         done
607     done
608 }
609
610 print_enabled(){
611     test "$1" = -n && end=" " && shift || end="\n"
612     suf=$1
613     shift
614     for v; do
615         enabled $v && printf "%s$end" ${v%$suf};
616     done
617 }
618
619 append(){
620     var=$1
621     shift
622     eval "$var=\"\$$var $*\""
623 }
624
625 prepend(){
626     var=$1
627     shift
628     eval "$var=\"$* \$$var\""
629 }
630
631 add_cppflags(){
632     append CPPFLAGS $($filter_cppflags "$@")
633 }
634
635 add_cflags(){
636     append CFLAGS $($filter_cflags "$@")
637 }
638
639 add_cxxflags(){
640     append CXXFLAGS $($filter_cflags "$@")
641 }
642
643 add_asflags(){
644     append ASFLAGS $($filter_asflags "$@")
645 }
646
647 add_ldflags(){
648     append LDFLAGS "$@"
649 }
650
651 add_extralibs(){
652     prepend extralibs "$@"
653 }
654
655 check_cmd(){
656     log "$@"
657     "$@" >> $logfile 2>&1
658 }
659
660 check_cc(){
661     log check_cc "$@"
662     cat > $TMPC
663     log_file $TMPC
664     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
665 }
666
667 check_cxx(){
668     log check_cxx "$@"
669     cat > $TMPCPP
670     log_file $TMPCPP
671     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
672 }
673
674 check_cpp(){
675     log check_cpp "$@"
676     cat > $TMPC
677     log_file $TMPC
678     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
679 }
680
681 check_as(){
682     log check_as "$@"
683     cat > $TMPC
684     log_file $TMPC
685     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
686 }
687
688 check_asm(){
689     log check_asm "$@"
690     name="$1"
691     code="$2"
692     shift 2
693     disable $name
694     check_as "$@" <<EOF && enable $name
695 void foo(void){ __asm__ volatile($code); }
696 EOF
697 }
698
699 check_yasm(){
700     log check_yasm "$@"
701     echo "$1" > $TMPS
702     log_file $TMPS
703     shift 1
704     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
705 }
706
707 check_ld(){
708     log check_ld "$@"
709     type=$1
710     shift 1
711     flags=''
712     libs=''
713     for f; do
714         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
715     done
716     check_$type $($filter_cflags $flags) || return
717     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
718 }
719
720 check_code(){
721     log check_code "$@"
722     check=$1
723     headers=$2
724     code=$3
725     shift 3
726     {
727         for hdr in $headers; do
728             echo "#include <$hdr>"
729         done
730         echo "int main(void) { $code; return 0; }"
731     } | check_$check "$@"
732 }
733
734 check_cppflags(){
735     log check_cppflags "$@"
736     set -- $($filter_cppflags "$@")
737     check_cc "$@" <<EOF && append CPPFLAGS "$@"
738 int x;
739 EOF
740 }
741
742 check_cflags(){
743     log check_cflags "$@"
744     set -- $($filter_cflags "$@")
745     check_cc "$@" <<EOF && append CFLAGS "$@"
746 int x;
747 EOF
748 }
749
750 check_cxxflags(){
751     log check_cxxflags "$@"
752     set -- $($filter_cflags "$@")
753     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
754 int x;
755 EOF
756 }
757
758 test_ldflags(){
759     log test_ldflags "$@"
760     check_ld "cc" "$@" <<EOF
761 int main(void){ return 0; }
762 EOF
763 }
764
765 check_ldflags(){
766     log check_ldflags "$@"
767     test_ldflags "$@" && add_ldflags "$@"
768 }
769
770 check_header(){
771     log check_header "$@"
772     header=$1
773     shift
774     disable_safe $header
775     check_cpp "$@" <<EOF && enable_safe $header
776 #include <$header>
777 int x;
778 EOF
779 }
780
781 check_func(){
782     log check_func "$@"
783     func=$1
784     shift
785     disable $func
786     check_ld "cc" "$@" <<EOF && enable $func
787 extern int $func();
788 int main(void){ $func(); }
789 EOF
790 }
791
792 check_mathfunc(){
793     log check_mathfunc "$@"
794     func=$1
795     shift
796     disable $func
797     check_ld "cc" "$@" <<EOF && enable $func
798 #include <math.h>
799 float foo(float f) { return $func(f); }
800 int main(void){ return (int) foo; }
801 EOF
802 }
803
804 check_func_headers(){
805     log check_func_headers "$@"
806     headers=$1
807     funcs=$2
808     shift 2
809     {
810         for hdr in $headers; do
811             echo "#include <$hdr>"
812         done
813         for func in $funcs; do
814             echo "long check_$func(void) { return (long) $func; }"
815         done
816         echo "int main(void) { return 0; }"
817     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
818 }
819
820 check_class_headers_cpp(){
821     log check_class_headers_cpp "$@"
822     headers=$1
823     classes=$2
824     shift 2
825     {
826         for hdr in $headers; do
827             echo "#include <$hdr>"
828         done
829         echo "int main(void) { "
830         i=1
831         for class in $classes; do
832             echo "$class obj$i;"
833             i=$(expr $i + 1)
834         done
835         echo "return 0; }"
836     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
837 }
838
839 check_cpp_condition(){
840     log check_cpp_condition "$@"
841     header=$1
842     condition=$2
843     shift 2
844     check_cpp $($filter_cppflags "$@") <<EOF
845 #include <$header>
846 #if !($condition)
847 #error "unsatisfied condition: $condition"
848 #endif
849 EOF
850 }
851
852 check_lib(){
853     log check_lib "$@"
854     header="$1"
855     func="$2"
856     shift 2
857     check_header $header && check_func $func "$@" && add_extralibs "$@"
858 }
859
860 check_lib2(){
861     log check_lib2 "$@"
862     headers="$1"
863     funcs="$2"
864     shift 2
865     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
866 }
867
868 check_lib_cpp(){
869     log check_lib_cpp "$@"
870     headers="$1"
871     classes="$2"
872     shift 2
873     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
874 }
875
876 check_pkg_config(){
877     log check_pkg_config "$@"
878     pkg="$1"
879     headers="$2"
880     funcs="$3"
881     shift 3
882     $pkg_config --exists $pkg 2>/dev/null || return
883     pkg_cflags=$($pkg_config --cflags $pkg)
884     pkg_libs=$($pkg_config --libs $pkg)
885     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
886         set_safe ${pkg}_cflags $pkg_cflags   &&
887         set_safe ${pkg}_libs   $pkg_libs
888 }
889
890 check_exec(){
891     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
892 }
893
894 check_exec_crash(){
895     code=$(cat)
896
897     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
898     # are safe but may not be available everywhere.  Thus we use
899     # raise(SIGTERM) instead.  The check is run in a subshell so we
900     # can redirect the "Terminated" message from the shell.  SIGBUS
901     # is not defined by standard C so it is used conditionally.
902
903     (check_exec "$@") >> $logfile 2>&1 <<EOF
904 #include <signal.h>
905 static void sighandler(int sig){
906     raise(SIGTERM);
907 }
908 int func(void){
909     $code
910 }
911 int (*func_ptr)(void) = func;
912 int main(void){
913     signal(SIGILL, sighandler);
914     signal(SIGFPE, sighandler);
915     signal(SIGSEGV, sighandler);
916 #ifdef SIGBUS
917     signal(SIGBUS, sighandler);
918 #endif
919     return func_ptr();
920 }
921 EOF
922 }
923
924 check_type(){
925     log check_type "$@"
926     headers=$1
927     type=$2
928     shift 2
929     disable_safe "$type"
930     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
931 }
932
933 check_struct(){
934     log check_type "$@"
935     headers=$1
936     struct=$2
937     member=$3
938     shift 3
939     disable_safe "${struct}_${member}"
940     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
941         enable_safe "${struct}_${member}"
942 }
943
944 require(){
945     name="$1"
946     header="$2"
947     func="$3"
948     shift 3
949     check_lib $header $func "$@" || die "ERROR: $name not found"
950 }
951
952 require2(){
953     name="$1"
954     headers="$2"
955     func="$3"
956     shift 3
957     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
958 }
959
960 require_cpp(){
961     name="$1"
962     headers="$2"
963     classes="$3"
964     shift 3
965     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
966 }
967
968 require_pkg_config(){
969     pkg="$1"
970     check_pkg_config "$@" || die "ERROR: $pkg not found"
971     add_cflags    $(get_safe ${pkg}_cflags)
972     add_extralibs $(get_safe ${pkg}_libs)
973 }
974
975 check_host_cc(){
976     log check_host_cc "$@"
977     cat > $TMPC
978     log_file $TMPC
979     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
980 }
981
982 check_host_cflags(){
983     log check_host_cflags "$@"
984     check_host_cc "$@" <<EOF && append host_cflags "$@"
985 int x;
986 EOF
987 }
988
989 apply(){
990     file=$1
991     shift
992     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
993 }
994
995 cp_if_changed(){
996     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
997     mkdir -p "$(dirname $2)"
998     cp -f "$1" "$2"
999 }
1000
1001 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1002 # system-dependent things.
1003
1004 COMPONENT_LIST="
1005     bsfs
1006     decoders
1007     demuxers
1008     encoders
1009     filters
1010     hwaccels
1011     indevs
1012     muxers
1013     outdevs
1014     parsers
1015     protocols
1016 "
1017
1018 PROGRAM_LIST="
1019     ffplay
1020     ffprobe
1021     ffserver
1022     ffmpeg
1023 "
1024
1025 CONFIG_LIST="
1026     $COMPONENT_LIST
1027     $PROGRAM_LIST
1028     ac3dsp
1029     avcodec
1030     avdevice
1031     avfilter
1032     avformat
1033     avresample
1034     avisynth
1035     bzlib
1036     crystalhd
1037     dct
1038     doc
1039     dwt
1040     dxva2
1041     fast_unaligned
1042     fastdiv
1043     fft
1044     fontconfig
1045     frei0r
1046     gnutls
1047     gpl
1048     gray
1049     hardcoded_tables
1050     libaacplus
1051     libass
1052     libbluray
1053     libcdio
1054     libcelt
1055     libdc1394
1056     libfaac
1057     libfdk_aac
1058     libfreetype
1059     libgsm
1060     libiec61883
1061     libilbc
1062     libmodplug
1063     libmp3lame
1064     libnut
1065     libopencore_amrnb
1066     libopencore_amrwb
1067     libopencv
1068     libopenjpeg
1069     libpulse
1070     librtmp
1071     libschroedinger
1072     libspeex
1073     libstagefright_h264
1074     libtheora
1075     libutvideo
1076     libv4l2
1077     libvo_aacenc
1078     libvo_amrwbenc
1079     libvorbis
1080     libvpx
1081     libx264
1082     libxavs
1083     libxvid
1084     lsp
1085     mdct
1086     memalign_hack
1087     memory_poisoning
1088     mpegaudiodsp
1089     network
1090     nonfree
1091     openal
1092     openssl
1093     pic
1094     postproc
1095     rdft
1096     rtpdec
1097     runtime_cpudetect
1098     safe_bitstream_reader
1099     shared
1100     sinewin
1101     small
1102     sram
1103     static
1104     swresample
1105     swscale
1106     swscale_alpha
1107     thumb
1108     vaapi
1109     vda
1110     vdpau
1111     version3
1112     xmm_clobber_test
1113     x11grab
1114     zlib
1115 "
1116
1117 THREADS_LIST='
1118     pthreads
1119     w32threads
1120     os2threads
1121 '
1122
1123 ARCH_LIST='
1124     alpha
1125     arm
1126     avr32
1127     avr32_ap
1128     avr32_uc
1129     bfin
1130     ia64
1131     m68k
1132     mips
1133     mips64
1134     parisc
1135     ppc
1136     ppc64
1137     s390
1138     sh4
1139     sparc
1140     sparc64
1141     tomi
1142     x86
1143     x86_32
1144     x86_64
1145 '
1146
1147 ARCH_EXT_LIST='
1148     altivec
1149     amd3dnow
1150     amd3dnowext
1151     armv5te
1152     armv6
1153     armv6t2
1154     armvfp
1155     avx
1156     mmi
1157     mmx
1158     mmx2
1159     neon
1160     ppc4xx
1161     sse
1162     ssse3
1163     vfpv3
1164     vis
1165     mipsfpu
1166     mips32r2
1167     mipsdspr1
1168     mipsdspr2
1169 '
1170
1171 HAVE_LIST_PUB='
1172     bigendian
1173     fast_unaligned
1174 '
1175
1176 HAVE_LIST="
1177     $ARCH_EXT_LIST
1178     $HAVE_LIST_PUB
1179     $THREADS_LIST
1180     aligned_malloc
1181     aligned_stack
1182     alsa_asoundlib_h
1183     altivec_h
1184     arpa_inet_h
1185     asm_mod_y
1186     asm_types_h
1187     attribute_may_alias
1188     attribute_packed
1189     cbrtf
1190     clock_gettime
1191     closesocket
1192     cmov
1193     CommandLineToArgvW
1194     cpuid
1195     dcbzl
1196     dev_bktr_ioctl_bt848_h
1197     dev_bktr_ioctl_meteor_h
1198     dev_ic_bt8xx_h
1199     dev_video_bktr_ioctl_bt848_h
1200     dev_video_meteor_ioctl_meteor_h
1201     dlfcn_h
1202     dlopen
1203     dos_paths
1204     dxva_h
1205     ebp_available
1206     ebx_available
1207     exp2
1208     exp2f
1209     fast_64bit
1210     fast_clz
1211     fast_cmov
1212     fcntl
1213     fork
1214     getaddrinfo
1215     gethrtime
1216     getopt
1217     GetProcessAffinityMask
1218     GetProcessMemoryInfo
1219     GetProcessTimes
1220     GetSystemTimeAsFileTime
1221     getrusage
1222     gettimeofday
1223     glob
1224     gnu_as
1225     ibm_asm
1226     inet_aton
1227     inline_asm
1228     isatty
1229     isinf
1230     isnan
1231     jack_port_get_latency_range
1232     kbhit
1233     ldbrx
1234     libdc1394_1
1235     libdc1394_2
1236     llrint
1237     llrintf
1238     local_aligned_16
1239     local_aligned_8
1240     localtime_r
1241     log2
1242     log2f
1243     loongson
1244     lrint
1245     lrintf
1246     lzo1x_999_compress
1247     machine_ioctl_bt848_h
1248     machine_ioctl_meteor_h
1249     makeinfo
1250     malloc_h
1251     MapViewOfFile
1252     memalign
1253     mkstemp
1254     mm_empty
1255     mmap
1256     nanosleep
1257     netinet_sctp_h
1258     PeekNamedPipe
1259     pod2man
1260     poll_h
1261     posix_memalign
1262     pthread_cancel
1263     rdtsc
1264     rint
1265     round
1266     roundf
1267     rweflags
1268     sched_getaffinity
1269     sdl
1270     sdl_video_size
1271     setmode
1272     setrlimit
1273     Sleep
1274     sndio_h
1275     socklen_t
1276     soundcard_h
1277     strerror_r
1278     strptime
1279     struct_addrinfo
1280     struct_group_source_req
1281     struct_ip_mreq_source
1282     struct_ipv6_mreq
1283     struct_pollfd
1284     struct_rusage_ru_maxrss
1285     struct_sockaddr_in6
1286     struct_sockaddr_sa_len
1287     struct_sockaddr_storage
1288     struct_v4l2_frmivalenum_discrete
1289     symver
1290     symver_asm_label
1291     symver_gnu_asm
1292     sysconf
1293     sysctl
1294     sys_mman_h
1295     sys_param_h
1296     sys_resource_h
1297     sys_select_h
1298     sys_soundcard_h
1299     sys_time_h
1300     sys_videoio_h
1301     termios_h
1302     texi2html
1303     threads
1304     trunc
1305     truncf
1306     unistd_h
1307     usleep
1308     vfp_args
1309     VirtualAlloc
1310     windows_h
1311     winsock2_h
1312     xform_asm
1313     xgetbv
1314     xmm_clobbers
1315     yasm
1316 "
1317
1318 # options emitted with CONFIG_ prefix but not available on command line
1319 CONFIG_EXTRA="
1320     aandct
1321     avutil
1322     golomb
1323     gplv3
1324     h264chroma
1325     h264dsp
1326     h264pred
1327     h264qpel
1328     huffman
1329     lgplv3
1330     lpc
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 vp6_decoder_select="huffman"
1585 vp6a_decoder_select="vp6_decoder"
1586 vp6f_decoder_select="vp6_decoder"
1587 vp8_decoder_select="h264pred h264qpel"
1588 wmapro_decoder_select="mdct sinewin"
1589 wmav1_decoder_select="mdct sinewin"
1590 wmav1_encoder_select="mdct sinewin"
1591 wmav2_decoder_select="mdct sinewin"
1592 wmav2_encoder_select="mdct sinewin"
1593 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1594 wmv1_decoder_select="h263_decoder"
1595 wmv1_encoder_select="h263_encoder"
1596 wmv2_decoder_select="h263_decoder"
1597 wmv2_encoder_select="h263_encoder"
1598 wmv3_decoder_select="vc1_decoder"
1599 wmv3_crystalhd_decoder_select="crystalhd"
1600 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1601 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1602 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1603 wmv3image_decoder_select="wmv3_decoder"
1604 zerocodec_decoder_select="zlib"
1605 zlib_decoder_select="zlib"
1606 zlib_encoder_select="zlib"
1607 zmbv_decoder_select="zlib"
1608 zmbv_encoder_select="zlib"
1609
1610 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1611 vaapi_deps="va_va_h"
1612 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1613 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1614
1615 # parsers
1616 h264_parser_select="golomb h264dsp h264pred"
1617
1618 # external libraries
1619 libaacplus_encoder_deps="libaacplus"
1620 libcelt_decoder_deps="libcelt"
1621 libfaac_encoder_deps="libfaac"
1622 libfdk_aac_encoder_deps="libfdk_aac"
1623 libgsm_decoder_deps="libgsm"
1624 libgsm_encoder_deps="libgsm"
1625 libgsm_ms_decoder_deps="libgsm"
1626 libgsm_ms_encoder_deps="libgsm"
1627 libilbc_decoder_deps="libilbc"
1628 libilbc_encoder_deps="libilbc"
1629 libmodplug_demuxer_deps="libmodplug"
1630 libmp3lame_encoder_deps="libmp3lame"
1631 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1632 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1633 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1634 libopenjpeg_decoder_deps="libopenjpeg"
1635 libopenjpeg_encoder_deps="libopenjpeg"
1636 libschroedinger_decoder_deps="libschroedinger"
1637 libschroedinger_encoder_deps="libschroedinger"
1638 libspeex_decoder_deps="libspeex"
1639 libspeex_encoder_deps="libspeex"
1640 libstagefright_h264_decoder_deps="libstagefright_h264"
1641 libtheora_encoder_deps="libtheora"
1642 libvo_aacenc_encoder_deps="libvo_aacenc"
1643 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1644 libvorbis_decoder_deps="libvorbis"
1645 libvorbis_encoder_deps="libvorbis"
1646 libvpx_decoder_deps="libvpx"
1647 libvpx_encoder_deps="libvpx"
1648 libx264_encoder_deps="libx264"
1649 libx264rgb_encoder_deps="libx264"
1650 libxavs_encoder_deps="libxavs"
1651 libxvid_encoder_deps="libxvid"
1652 libutvideo_decoder_deps="libutvideo"
1653 libutvideo_encoder_deps="libutvideo"
1654
1655 # demuxers / muxers
1656 ac3_demuxer_select="ac3_parser"
1657 asf_stream_muxer_select="asf_muxer"
1658 avisynth_demuxer_deps="avisynth"
1659 dirac_demuxer_select="dirac_parser"
1660 eac3_demuxer_select="ac3_parser"
1661 flac_demuxer_select="flac_parser"
1662 ipod_muxer_select="mov_muxer"
1663 libnut_demuxer_deps="libnut"
1664 libnut_muxer_deps="libnut"
1665 matroska_audio_muxer_select="matroska_muxer"
1666 matroska_demuxer_suggest="zlib bzlib"
1667 mov_demuxer_suggest="zlib"
1668 mp3_demuxer_select="mpegaudio_parser"
1669 mp4_muxer_select="mov_muxer"
1670 mpegts_muxer_select="adts_muxer latm_muxer"
1671 mpegtsraw_demuxer_select="mpegts_demuxer"
1672 mxf_d10_muxer_select="mxf_muxer"
1673 ogg_demuxer_select="golomb"
1674 psp_muxer_select="mov_muxer"
1675 rtp_demuxer_select="sdp_demuxer"
1676 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1677 rtsp_demuxer_select="http_protocol rtpdec"
1678 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1679 sap_demuxer_select="sdp_demuxer"
1680 sap_muxer_select="rtp_muxer rtp_protocol"
1681 sdp_demuxer_select="rtpdec"
1682 spdif_muxer_select="aac_parser"
1683 tg2_muxer_select="mov_muxer"
1684 tgp_muxer_select="mov_muxer"
1685 w64_demuxer_deps="wav_demuxer"
1686
1687 # indevs / outdevs
1688 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1689 alsa_outdev_deps="alsa_asoundlib_h"
1690 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1691 dshow_indev_deps="IBaseFilter"
1692 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1693 dv1394_indev_deps="dv1394 dv_demuxer"
1694 fbdev_indev_deps="linux_fb_h"
1695 iec61883_indev_deps="libiec61883"
1696 jack_indev_deps="jack_jack_h sem_timedwait"
1697 lavfi_indev_deps="avfilter"
1698 libcdio_indev_deps="libcdio"
1699 libdc1394_indev_deps="libdc1394"
1700 libv4l2_indev_deps="libv4l2"
1701 openal_indev_deps="openal"
1702 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1703 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1704 pulse_indev_deps="libpulse"
1705 sdl_outdev_deps="sdl"
1706 sndio_indev_deps="sndio_h"
1707 sndio_outdev_deps="sndio_h"
1708 v4l_indev_deps="linux_videodev_h"
1709 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1710 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1711 vfwcap_indev_extralibs="-lavicap32"
1712 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1713
1714 # protocols
1715 bluray_protocol_deps="libbluray"
1716 gopher_protocol_deps="network"
1717 httpproxy_protocol_deps="network"
1718 httpproxy_protocol_select="tcp_protocol"
1719 http_protocol_deps="network"
1720 http_protocol_select="tcp_protocol"
1721 https_protocol_select="tls_protocol"
1722 librtmp_protocol_deps="librtmp"
1723 librtmpe_protocol_deps="librtmp"
1724 librtmps_protocol_deps="librtmp"
1725 librtmpt_protocol_deps="librtmp"
1726 librtmpte_protocol_deps="librtmp"
1727 mmsh_protocol_select="http_protocol"
1728 mmst_protocol_deps="network"
1729 rtmp_protocol_deps="!librtmp_protocol"
1730 rtmp_protocol_select="tcp_protocol"
1731 rtmphttp_protocol_deps="!librtmp_protocol"
1732 rtmphttp_protocol_select="http_protocol"
1733 rtmpt_protocol_deps="!librtmp_protocol"
1734 rtmpt_protocol_select="rtmphttp_protocol"
1735 rtp_protocol_select="udp_protocol"
1736 sctp_protocol_deps="network netinet_sctp_h"
1737 tcp_protocol_deps="network"
1738 tls_protocol_deps_any="openssl gnutls"
1739 tls_protocol_select="tcp_protocol"
1740 udp_protocol_deps="network"
1741
1742 # filters
1743 aconvert_filter_deps="swresample"
1744 amovie_filter_deps="avcodec avformat"
1745 aresample_filter_deps="swresample"
1746 ass_filter_deps="libass"
1747 asyncts_filter_deps="avresample"
1748 atempo_filter_deps="avcodec rdft"
1749 blackframe_filter_deps="gpl"
1750 boxblur_filter_deps="gpl"
1751 colormatrix_filter_deps="gpl"
1752 cropdetect_filter_deps="gpl"
1753 delogo_filter_deps="gpl"
1754 deshake_filter_deps="avcodec"
1755 drawtext_filter_deps="libfreetype"
1756 frei0r_filter_deps="frei0r dlopen"
1757 frei0r_filter_extralibs='$ldl'
1758 frei0r_src_filter_deps="frei0r dlopen"
1759 frei0r_src_filter_extralibs='$ldl'
1760 hqdn3d_filter_deps="gpl"
1761 movie_filter_deps="avcodec avformat"
1762 mp_filter_deps="gpl avcodec swscale postproc"
1763 mptestsrc_filter_deps="gpl"
1764 negate_filter_deps="lut_filter"
1765 resample_filter_deps="avresample"
1766 ocv_filter_deps="libopencv"
1767 pan_filter_deps="swresample"
1768 removelogo_filter_deps="avcodec avformat swscale"
1769 scale_filter_deps="swscale"
1770 select_filter_deps="avcodec"
1771 super2xsai_filter_deps="gpl"
1772 tinterlace_filter_deps="gpl"
1773 yadif_filter_deps="gpl"
1774
1775 # libraries
1776 avdevice_deps="avcodec avformat"
1777 avformat_deps="avcodec"
1778 postproc_deps="gpl"
1779
1780 # programs
1781 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1782 ffmpeg_select="buffersink_filter format_filter aformat_filter
1783                setpts_filter null_filter anull_filter abuffersink_filter"
1784 ffplay_deps="avcodec avformat swscale swresample sdl"
1785 ffplay_select="buffersink_filter rdft"
1786 ffprobe_deps="avcodec avformat"
1787 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1788 ffserver_extralibs='$ldl'
1789
1790 doc_deps_any="texi2html makeinfo pod2man"
1791
1792 # tests
1793
1794 test_deps(){
1795     suf1=$1
1796     suf2=$2
1797     shift 2
1798     for v; do
1799         dep=${v%=*}
1800         tests=${v#*=}
1801         for name in ${tests}; do
1802             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1803         done
1804     done
1805 }
1806
1807 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1808
1809 test_deps _muxer _demuxer                                               \
1810     aiff                                                                \
1811     pcm_alaw=alaw                                                       \
1812     asf                                                                 \
1813     au                                                                  \
1814     avi                                                                 \
1815     dv=dv_fmt                                                           \
1816     ffm                                                                 \
1817     flv=flv_fmt                                                         \
1818     gxf                                                                 \
1819     matroska=mkv                                                        \
1820     mmf                                                                 \
1821     mov="mov ismv"                                                      \
1822     pcm_mulaw=mulaw                                                     \
1823     mxf="mxf mxf_d10"                                                   \
1824     nut                                                                 \
1825     ogg="ogg ogg_vp3"                                                   \
1826     rawvideo=pixfmt                                                     \
1827     rm                                                                  \
1828     swf                                                                 \
1829     mpegts=ts                                                           \
1830     voc                                                                 \
1831     wav                                                                 \
1832     yuv4mpegpipe=yuv4mpeg                                               \
1833
1834 colormatrix1_test_deps="colormatrix_filter"
1835 colormatrix2_test_deps="colormatrix_filter"
1836 flashsv2_test_deps="zlib"
1837 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1838 mpng_test_deps="zlib"
1839 pp_test_deps="mp_filter"
1840 pp2_test_deps="mp_filter"
1841 pp3_test_deps="mp_filter"
1842 pp4_test_deps="mp_filter"
1843 pp5_test_deps="mp_filter"
1844 pp6_test_deps="mp_filter"
1845 zlib_test_deps="zlib"
1846 zmbv_test_deps="zlib"
1847
1848 # default parameters
1849
1850 logfile="config.log"
1851
1852 # installation paths
1853 prefix_default="/usr/local"
1854 bindir_default='${prefix}/bin'
1855 datadir_default='${prefix}/share/ffmpeg'
1856 incdir_default='${prefix}/include'
1857 libdir_default='${prefix}/lib'
1858 mandir_default='${prefix}/share/man'
1859 shlibdir_default="$libdir_default"
1860 postproc_version_default="current"
1861
1862 # toolchain
1863 ar_default="ar"
1864 cc_default="gcc"
1865 cxx_default="g++"
1866 cc_version=\"unknown\"
1867 host_cc_default="gcc"
1868 install="install"
1869 ln_s="ln -sf"
1870 nm_default="nm"
1871 objformat="elf"
1872 pkg_config_default=pkg-config
1873 ranlib="ranlib"
1874 strip_default="strip"
1875 yasmexe_default="yasm"
1876
1877 nm_opts='-g'
1878 nogas=":"
1879
1880 # machine
1881 arch_default=$(uname -m)
1882 cpu="generic"
1883
1884 # OS
1885 target_os_default=$(tolower $(uname -s))
1886 host_os=$target_os_default
1887
1888 # alternative libpostproc version
1889 ALT_PP_VER_MAJOR=51
1890 ALT_PP_VER_MINOR=2
1891 ALT_PP_VER_MICRO=101
1892 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1893
1894 # configurable options
1895 enable $PROGRAM_LIST
1896
1897 enable avcodec
1898 enable avdevice
1899 enable avfilter
1900 enable avformat
1901 enable avutil
1902 enable postproc
1903 enable stripping
1904 enable swresample
1905 enable swscale
1906
1907 enable asm
1908 enable debug
1909 enable doc
1910 enable fastdiv
1911 enable network
1912 enable optimizations
1913 enable safe_bitstream_reader
1914 enable static
1915 enable swscale_alpha
1916
1917 # build settings
1918 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1919 FFSERVERLDFLAGS=-Wl,-E
1920 LIBPREF="lib"
1921 LIBSUF=".a"
1922 FULLNAME='$(NAME)$(BUILDSUF)'
1923 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1924 SLIBPREF="lib"
1925 SLIBSUF=".so"
1926 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1927 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1928 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1929 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1930 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1931 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1932
1933 AS_O='-o $@'
1934 CC_O='-o $@'
1935 CXX_O='-o $@'
1936
1937 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1938 host_libs='-lm'
1939
1940 target_path='$(CURDIR)'
1941
1942 # since the object filename is not given with the -MM flag, the compiler
1943 # is only able to print the basename, and we must add the path ourselves
1944 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1945 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1946
1947 # find source path
1948 if test -f configure; then
1949     source_path=.
1950 else
1951     source_path=$(cd $(dirname "$0"); pwd)
1952     echo "$source_path" | grep -q '[[:blank:]]' &&
1953         die "Out of tree builds are impossible with whitespace in source path."
1954     test -e "$source_path/config.h" &&
1955         die "Out of tree builds are impossible with config.h in source dir."
1956 fi
1957
1958 for v in "$@"; do
1959     r=${v#*=}
1960     l=${v%"$r"}
1961     r=$(sh_quote "$r")
1962     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1963 done
1964
1965 find_things(){
1966     thing=$1
1967     pattern=$2
1968     file=$source_path/$3
1969     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1970 }
1971
1972 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1973 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1974 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1975 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1976 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1977 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1978 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1979 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1980 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1981 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1982 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1983
1984 ALL_COMPONENTS="
1985     $BSF_LIST
1986     $DECODER_LIST
1987     $DEMUXER_LIST
1988     $ENCODER_LIST
1989     $FILTER_LIST
1990     $HWACCEL_LIST
1991     $INDEV_LIST
1992     $MUXER_LIST
1993     $OUTDEV_LIST
1994     $PARSER_LIST
1995     $PROTOCOL_LIST
1996 "
1997
1998 find_tests(){
1999     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2000 }
2001
2002 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2003 LAVF_TESTS=$(find_tests lavf)
2004 LAVFI_TESTS=$(find_tests lavfi)
2005 SEEK_TESTS=$(find_tests seek seek_)
2006
2007 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2008
2009 for n in $COMPONENT_LIST; do
2010     v=$(toupper ${n%s})_LIST
2011     eval enable \$$v
2012     eval ${n}_if_any="\$$v"
2013 done
2014
2015 enable $ARCH_EXT_LIST $ALL_TESTS
2016
2017 die_unknown(){
2018     echo "Unknown option \"$1\"."
2019     echo "See $0 --help for available options."
2020     exit 1
2021 }
2022
2023 show_list() {
2024     suffix=_$1
2025     shift
2026     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2027     exit 0
2028 }
2029
2030 rand_list(){
2031     IFS=', '
2032     set -- $*
2033     unset IFS
2034     for thing; do
2035         comp=${thing%:*}
2036         prob=${thing#$comp}
2037         prob=${prob#:}
2038         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2039         echo "prob ${prob:-0.5}"
2040         printf '%s\n' $comp
2041     done
2042 }
2043
2044 do_random(){
2045     action=$1
2046     shift
2047     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2048     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2049 }
2050
2051 for opt do
2052     optval="${opt#*=}"
2053     case "$opt" in
2054     --extra-ldflags=*) add_ldflags $optval
2055     ;;
2056     --extra-libs=*) add_extralibs $optval
2057     ;;
2058     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2059     ;;
2060     --enable-debug=*) debuglevel="$optval"
2061     ;;
2062     --disable-everything)
2063     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2064     ;;
2065     --enable-random|--disable-random)
2066     action=${opt%%-random}
2067     do_random ${action#--} $COMPONENT_LIST
2068     ;;
2069     --enable-random=*|--disable-random=*)
2070     action=${opt%%-random=*}
2071     do_random ${action#--} $optval
2072     ;;
2073     --enable-*=*|--disable-*=*)
2074     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2075     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2076     eval list=\$$(toupper $thing)_LIST
2077     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2078     $action $(filter "$name" $list)
2079     ;;
2080     --enable-?*|--disable-?*)
2081     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2082     if is_in $option $COMPONENT_LIST; then
2083         test $action = disable && action=unset
2084         eval $action \$$(toupper ${option%s})_LIST
2085     elif is_in $option $CMDLINE_SELECT; then
2086         $action $option
2087     else
2088         die_unknown $opt
2089     fi
2090     ;;
2091     --list-*)
2092         NAME="${opt#--list-}"
2093         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2094         NAME=${NAME%s}
2095         eval show_list $NAME \$$(toupper $NAME)_LIST
2096     ;;
2097     --help|-h) show_help
2098     ;;
2099     *)
2100     optname="${opt%%=*}"
2101     optname="${optname#--}"
2102     optname=$(echo "$optname" | sed 's/-/_/g')
2103     if is_in $optname $CMDLINE_SET; then
2104         eval $optname='$optval'
2105     elif is_in $optname $CMDLINE_APPEND; then
2106         append $optname "$optval"
2107     else
2108          die_unknown $opt
2109     fi
2110     ;;
2111     esac
2112 done
2113
2114 disabled logging && logfile=/dev/null
2115
2116 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2117 set >> $logfile
2118
2119 test -n "$cross_prefix" && enable cross_compile
2120
2121 if enabled cross_compile; then
2122     test -n "$arch" && test -n "$target_os" ||
2123         die "Must specify target arch and OS when cross-compiling"
2124 fi
2125
2126 set_default arch target_os postproc_version
2127
2128 # Check if we should build alternative libpostproc version instead of current
2129 if   test "$postproc_version" = $ALT_PP_VER; then
2130   LIBPOSTPROC_VERSION=$ALT_PP_VER
2131   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2132   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2133   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2134 elif test "$postproc_version" != current; then
2135   die "Invalid argument to --postproc-version. See --help output."
2136 fi
2137
2138 ar_default="${cross_prefix}${ar_default}"
2139 cc_default="${cross_prefix}${cc_default}"
2140 cxx_default="${cross_prefix}${cxx_default}"
2141 nm_default="${cross_prefix}${nm_default}"
2142 pkg_config_default="${cross_prefix}${pkg_config_default}"
2143 ranlib="${cross_prefix}${ranlib}"
2144 strip_default="${cross_prefix}${strip_default}"
2145
2146 sysinclude_default="${sysroot}/usr/include"
2147
2148 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2149 enabled cross_compile || host_cc_default=$cc
2150 set_default host_cc
2151
2152 if ! $pkg_config --version >/dev/null 2>&1; then
2153     warn "$pkg_config not found, library detection may fail."
2154     pkg_config=false
2155 fi
2156
2157 exesuf() {
2158     case $1 in
2159         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2160     esac
2161 }
2162
2163 EXESUF=$(exesuf $target_os)
2164 HOSTEXESUF=$(exesuf $host_os)
2165
2166 # set temporary file name
2167 : ${TMPDIR:=$TEMPDIR}
2168 : ${TMPDIR:=$TMP}
2169 : ${TMPDIR:=/tmp}
2170
2171 if ! check_cmd mktemp -u XXXXXX; then
2172     # simple replacement for missing mktemp
2173     # NOT SAFE FOR GENERAL USE
2174     mktemp(){
2175         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2176     }
2177 fi
2178
2179 tmpfile(){
2180     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2181         (set -C; exec > $tmp) 2>/dev/null ||
2182         die "Unable to create temporary file in $TMPDIR."
2183     append TMPFILES $tmp
2184     eval $1=$tmp
2185 }
2186
2187 trap 'rm -f -- $TMPFILES' EXIT
2188
2189 tmpfile TMPASM .asm
2190 tmpfile TMPC   .c
2191 tmpfile TMPCPP .cpp
2192 tmpfile TMPE   $EXESUF
2193 tmpfile TMPH   .h
2194 tmpfile TMPO   .o
2195 tmpfile TMPS   .S
2196 tmpfile TMPSH  .sh
2197 tmpfile TMPV   .ver
2198
2199 unset -f mktemp
2200
2201 chmod +x $TMPE
2202
2203 # make sure we can execute files in $TMPDIR
2204 cat > $TMPSH 2>> $logfile <<EOF
2205 #! /bin/sh
2206 EOF
2207 chmod +x $TMPSH >> $logfile 2>&1
2208 if ! $TMPSH >> $logfile 2>&1; then
2209     cat <<EOF
2210 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2211 variable to another directory and make sure that it is not mounted noexec.
2212 EOF
2213     die "Sanity test failed."
2214 fi
2215
2216 filter_asflags=echo
2217 filter_cflags=echo
2218 filter_cppflags=echo
2219
2220 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2221     cc_type=llvm_gcc
2222     cc_version=__VERSION__
2223     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2224     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2225     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2226     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2227     speed_cflags='-O3'
2228     size_cflags='-Os'
2229 elif $cc -v 2>&1 | grep -qi ^gcc; then
2230     cc_type=gcc
2231     cc_version=__VERSION__
2232     gcc_version=$($cc --version | head -n1)
2233     gcc_basever=$($cc -dumpversion)
2234     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2235     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2236     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2237     if ! $cc -dumpversion | grep -q '^2\.'; then
2238         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2239         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2240     fi
2241     speed_cflags='-O3'
2242     size_cflags='-Os'
2243 elif $cc --version 2>/dev/null | grep -q Intel; then
2244     cc_type=icc
2245     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2246     cc_ident=$($cc --version | head -n1)
2247     icc_version=$($cc -dumpversion)
2248     CC_DEPFLAGS='-MMD'
2249     AS_DEPFLAGS='-MMD'
2250     speed_cflags='-O3'
2251     size_cflags='-Os'
2252     noopt_cflags='-O1'
2253 elif $cc -v 2>&1 | grep -q xlc; then
2254     cc_type=xlc
2255     cc_version="AV_STRINGIFY(__IBMC__)"
2256     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2257     speed_cflags='-O5'
2258     size_cflags='-O5 -qcompact'
2259 elif $cc -V 2>/dev/null | grep -q Compaq; then
2260     cc_type=ccc
2261     cc_version="AV_STRINGIFY(__DECC_VER)"
2262     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2263     DEPFLAGS='$(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_version="AV_STRINGIFY(__ARMCC_VERSION)"
2272     cc_ident=$($cc --vsn | head -n1)
2273     armcc_conf="$PWD/armcc.conf"
2274     $cc --arm_linux_configure                 \
2275         --arm_linux_config_file="$armcc_conf" \
2276         --configure_sysroot="$sysroot"        \
2277         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2278         die "Error creating armcc configuration file."
2279     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2280     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2281     as_default="${cross_prefix}gcc"
2282     CC_DEPFLAGS='-MMD'
2283     AS_DEPFLAGS='-MMD'
2284     speed_cflags='-O3'
2285     size_cflags='-Os'
2286     filter_asflags="filter_out -W${armcc_opt}*"
2287 elif $cc -version 2>/dev/null | grep -q TMS470; then
2288     cc_type=tms470
2289     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2290     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2291     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2292     CC_O='-fr=$(@D)'
2293     as_default="${cross_prefix}gcc"
2294     ld_default="${cross_prefix}gcc"
2295     TMPO=$(basename $TMPC .c).o
2296     append TMPFILES $TMPO
2297     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2298     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2299     AS_DEPFLAGS='-MMD'
2300     speed_cflags='-O3 -mf=5'
2301     size_cflags='-O3 -mf=2'
2302     filter_cflags=tms470_flags
2303     tms470_flags(){
2304         for flag; do
2305             case $flag in
2306                 -march=*|-mcpu=*)
2307                     case "${flag#*=}" in
2308                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2309                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2310                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2311                         armv6*|arm11*)          echo -mv=6   ;;
2312                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2313                                                 echo -mv=5e  ;;
2314                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2315                     esac
2316                     ;;
2317                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2318                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2319                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2320                 -msoft-float)   echo --float_support=vfplib       ;;
2321                 -O[0-3]|-mf=*)  echo $flag                        ;;
2322                 -g)             echo -g -mn                       ;;
2323                 -pds=*)         echo $flag                        ;;
2324             esac
2325         done
2326     }
2327 elif $cc -v 2>&1 | grep -q clang; then
2328     cc_type=clang
2329     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2330         cc_version=__clang_version__ || cc_version=__VERSION__
2331     cc_ident=$($cc --version | head -n1)
2332     CC_DEPFLAGS='-MMD'
2333     AS_DEPFLAGS='-MMD'
2334     speed_cflags='-O3'
2335     size_cflags='-Os'
2336 elif $cc -V 2>&1 | grep -q Sun; then
2337     cc_type=suncc
2338     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2339     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2340     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2341     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2342     add_ldflags -xc99
2343     speed_cflags='-O5'
2344     size_cflags='-O5 -xspace'
2345     filter_cflags=suncc_flags
2346     suncc_flags(){
2347         for flag; do
2348             case $flag in
2349                 -march=*|-mcpu=*)
2350                     case "${flag#*=}" in
2351                         native)                   echo -xtarget=native       ;;
2352                         v9|niagara)               echo -xarch=sparc          ;;
2353                         ultrasparc)               echo -xarch=sparcvis       ;;
2354                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2355                         i586|pentium)             echo -xchip=pentium        ;;
2356                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2357                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2358                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2359                         pentium4*)          echo -xtarget=pentium4           ;;
2360                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2361                         *-sse3)             echo -xarch=sse3                 ;;
2362                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2363                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2364                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2365                         k8|opteron|athlon64|athlon-fx)
2366                                                   echo -xarch=sse2a          ;;
2367                         athlon*)                  echo -xarch=pentium_proa   ;;
2368                     esac
2369                     ;;
2370                 -std=c99)             echo -xc99              ;;
2371                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2372                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2373                 -W*,*)                echo $flag              ;;
2374                 -f*-*|-W*)                                    ;;
2375                 *)                    echo $flag              ;;
2376             esac
2377         done
2378     }
2379 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2380     cc_type=pathscale
2381     cc_version=__PATHSCALE__
2382     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2383     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2384     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2385     speed_cflags='-O2'
2386     size_cflags='-Os'
2387     filter_cflags='filter_out -Wdisabled-optimization'
2388 elif $cc -v 2>&1 | grep -q Open64; then
2389     cc_type=open64
2390     cc_version=__OPEN64__
2391     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2392     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2393     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2394     speed_cflags='-O2'
2395     size_cflags='-Os'
2396     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2397 elif $cc -V 2>&1 | grep -q Portland; then
2398     cc_type=pgi
2399     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2400     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2401     opt_common='-alias=ansi -Mlre -Mpre'
2402     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2403     size_cflags="-O2 -Munroll=c:1 $opt_common"
2404     noopt_cflags="-O1"
2405     filter_cflags=pgi_flags
2406     pgi_flags(){
2407         for flag; do
2408             case $flag in
2409                 -fomit-frame-pointer) echo -Mnoframe ;;
2410                 -g)                   echo -gopt ;;
2411                 *)                    echo $flag ;;
2412             esac
2413         done
2414     }
2415 fi
2416
2417 test -n "$cc_type" && enable $cc_type ||
2418     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2419
2420 : ${as_default:=$cc}
2421 : ${dep_cc_default:=$cc}
2422 : ${ld_default:=$cc}
2423 set_default ar as dep_cc ld
2424
2425 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2426 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2427 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2428
2429 add_cflags $extra_cflags
2430 add_cxxflags $extra_cxxflags
2431 add_asflags $extra_cflags
2432
2433 if test -n "$sysroot"; then
2434     case "$cc_type" in
2435         gcc|llvm_gcc|clang)
2436             add_cppflags --sysroot="$sysroot"
2437             add_ldflags --sysroot="$sysroot"
2438         ;;
2439         tms470)
2440             add_cppflags -I"$sysinclude"
2441             add_ldflags  --sysroot="$sysroot"
2442         ;;
2443     esac
2444 fi
2445
2446 if test "$cpu" = host; then
2447     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2448
2449     case "$cc_type" in
2450         gcc|llvm_gcc)
2451             check_native(){
2452                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2453                 sed -n "/cc1.*$1=/{
2454                             s/.*$1=\\([^ ]*\\).*/\\1/
2455                             p
2456                             q
2457                         }" $TMPE
2458             }
2459             cpu=$(check_native -march || check_native -mcpu)
2460         ;;
2461     esac
2462
2463     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2464 fi
2465
2466 # Deal with common $arch aliases
2467 case "$arch" in
2468     arm*|iPad*)
2469         arch="arm"
2470     ;;
2471     mips|mipsel|IP*)
2472         arch="mips"
2473     ;;
2474     mips64*)
2475         arch="mips"
2476         subarch="mips64"
2477     ;;
2478     parisc|hppa)
2479         arch="parisc"
2480     ;;
2481     parisc64|hppa64)
2482         arch="parisc"
2483         subarch="parisc64"
2484     ;;
2485     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2486         arch="ppc"
2487     ;;
2488     s390|s390x)
2489         arch="s390"
2490     ;;
2491     sh4|sh)
2492         arch="sh4"
2493     ;;
2494     sun4u|sparc64)
2495         arch="sparc"
2496         subarch="sparc64"
2497     ;;
2498     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2499         arch="x86"
2500     ;;
2501 esac
2502
2503 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2504 enable $arch
2505
2506 # Add processor-specific flags
2507 if test "$cpu" = generic; then
2508     : do nothing
2509 elif enabled ppc; then
2510
2511     case $(tolower $cpu) in
2512         601|ppc601|powerpc601)
2513             cpuflags="-mcpu=601"
2514             disable altivec
2515         ;;
2516         603*|ppc603*|powerpc603*)
2517             cpuflags="-mcpu=603"
2518             disable altivec
2519         ;;
2520         604*|ppc604*|powerpc604*)
2521             cpuflags="-mcpu=604"
2522             disable altivec
2523         ;;
2524         g3|75*|ppc75*|powerpc75*)
2525             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2526             disable altivec
2527         ;;
2528         g4|745*|ppc745*|powerpc745*)
2529             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2530         ;;
2531         74*|ppc74*|powerpc74*)
2532             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2533         ;;
2534         g5|970|ppc970|powerpc970)
2535             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2536         ;;
2537         power[3-7]*)
2538             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2539         ;;
2540         cell)
2541             cpuflags="-mcpu=cell"
2542             enable ldbrx
2543         ;;
2544         e500v2)
2545             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2546             disable altivec
2547         ;;
2548         e500)
2549             cpuflags="-mcpu=8540 -mhard-float"
2550             disable altivec
2551         ;;
2552     esac
2553
2554 elif enabled x86; then
2555
2556     case $cpu in
2557         i[345]86|pentium)
2558             cpuflags="-march=$cpu"
2559             disable mmx
2560         ;;
2561         # targets that do NOT support conditional mov (cmov)
2562         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2563             cpuflags="-march=$cpu"
2564             disable cmov
2565         ;;
2566         # targets that do support conditional mov (cmov)
2567         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2568             cpuflags="-march=$cpu"
2569             enable cmov
2570             enable fast_cmov
2571         ;;
2572         # targets that do support conditional mov but on which it's slow
2573         pentium4|pentium4m|prescott|nocona)
2574             cpuflags="-march=$cpu"
2575             enable cmov
2576             disable fast_cmov
2577         ;;
2578     esac
2579
2580 elif enabled sparc; then
2581
2582     case $cpu in
2583         niagara)
2584             cpuflags="-mcpu=$cpu"
2585             disable vis
2586         ;;
2587         sparc64)
2588             cpuflags="-mcpu=v9"
2589         ;;
2590     esac
2591
2592 elif enabled arm; then
2593
2594     case $cpu in
2595         armv*)
2596             cpuflags="-march=$cpu"
2597             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2598         ;;
2599         *)
2600             cpuflags="-mcpu=$cpu"
2601             case $cpu in
2602                 cortex-a*)                               subarch=armv7a  ;;
2603                 cortex-r*)                               subarch=armv7r  ;;
2604                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2605                 arm11*)                                  subarch=armv6   ;;
2606                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2607                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2608             esac
2609         ;;
2610     esac
2611
2612 elif enabled alpha; then
2613
2614     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2615
2616 elif enabled bfin; then
2617
2618     cpuflags="-mcpu=$cpu"
2619
2620 elif enabled mips; then
2621
2622     cpuflags="-march=$cpu"
2623
2624     case $cpu in
2625         24kc)
2626             disable mipsfpu
2627             disable mipsdspr1
2628             disable mipsdspr2
2629         ;;
2630         24kf*)
2631             disable mipsdspr1
2632             disable mipsdspr2
2633         ;;
2634         24kec|34kc|1004kc)
2635             disable mipsfpu
2636             disable mipsdspr2
2637         ;;
2638         24kef*|34kf*|1004kf*)
2639             disable mipsdspr2
2640         ;;
2641         74kc)
2642             disable mipsfpu
2643         ;;
2644     esac
2645
2646 elif enabled avr32; then
2647
2648     case $cpu in
2649         ap7[02]0[0-2])
2650             subarch="avr32_ap"
2651             cpuflags="-mpart=$cpu"
2652         ;;
2653         ap)
2654             subarch="avr32_ap"
2655             cpuflags="-march=$cpu"
2656         ;;
2657         uc3[ab]*)
2658             subarch="avr32_uc"
2659             cpuflags="-mcpu=$cpu"
2660         ;;
2661         uc)
2662             subarch="avr32_uc"
2663             cpuflags="-march=$cpu"
2664         ;;
2665     esac
2666
2667 fi
2668
2669 add_cflags $cpuflags
2670 add_asflags $cpuflags
2671
2672 # compiler sanity check
2673 check_exec <<EOF
2674 int main(void){ return 0; }
2675 EOF
2676 if test "$?" != 0; then
2677     echo "$cc is unable to create an executable file."
2678     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2679         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2680         echo "Only do this if you know what cross compiling means."
2681     fi
2682     die "C compiler test failed."
2683 fi
2684
2685 add_cppflags -D_ISOC99_SOURCE
2686 add_cxxflags -D__STDC_CONSTANT_MACROS
2687 check_cflags -std=c99
2688 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2689 #include <stdlib.h>
2690 EOF
2691 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2692 #include <stdlib.h>
2693 EOF
2694
2695 check_host_cflags -std=c99
2696 check_host_cflags -Wall
2697
2698 case "$arch" in
2699     alpha|ia64|mips|parisc|sparc)
2700         spic=$shared
2701     ;;
2702     x86)
2703         subarch="x86_32"
2704         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2705         if test "$subarch" = "x86_64"; then
2706             spic=$shared
2707         fi
2708     ;;
2709     ppc)
2710         check_cc <<EOF && subarch="ppc64"
2711         int test[(int)sizeof(char*) - 7];
2712 EOF
2713     ;;
2714 esac
2715
2716 enable $subarch
2717 enabled spic && enable pic
2718
2719 # OS specific
2720 case $target_os in
2721     haiku)
2722         prefix_default="/boot/common"
2723         network_extralibs="-lnetwork"
2724         host_libs=
2725         ;;
2726     sunos)
2727         FFSERVERLDFLAGS=""
2728         SHFLAGS='-shared -Wl,-h,$$(@F)'
2729         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2730         network_extralibs="-lsocket -lnsl"
2731         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2732         # When using suncc to build, the Solaris linker will mark
2733         # an executable with each instruction set encountered by
2734         # the Solaris assembler.  As our libraries contain their own
2735         # guards for processor-specific code, instead suppress
2736         # generation of the HWCAPS ELF section on Solaris x86 only.
2737         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2738         nm_opts='-P -g'
2739         ;;
2740     netbsd)
2741         disable symver
2742         oss_indev_extralibs="-lossaudio"
2743         oss_outdev_extralibs="-lossaudio"
2744         ;;
2745     openbsd|bitrig)
2746         # On OpenBSD 4.5. the compiler does not use PIC unless
2747         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2748         # however the generated executable will not do anything
2749         # (simply quits with exit-code 1, no crash, no output).
2750         # Thus explicitly enable PIC here.
2751         enable pic
2752         disable symver
2753         SHFLAGS='-shared'
2754         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2755         oss_indev_extralibs="-lossaudio"
2756         oss_outdev_extralibs="-lossaudio"
2757         ;;
2758     dragonfly)
2759         disable symver
2760         ;;
2761     freebsd)
2762         ;;
2763     bsd/os)
2764         add_extralibs -lpoll -lgnugetopt
2765         strip="strip -d"
2766         ;;
2767     darwin)
2768         gas="gas-preprocessor.pl $cc"
2769         enabled ppc && add_asflags -force_cpusubtype_ALL
2770         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2771         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2772         strip="${strip} -x"
2773         add_ldflags -Wl,-dynamic,-search_paths_first
2774         SLIBSUF=".dylib"
2775         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2776         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2777         FFSERVERLDFLAGS=-Wl,-bind_at_load
2778         objformat="macho"
2779         enabled x86_64 && objformat="macho64"
2780         enabled_any pic shared ||
2781             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2782         ;;
2783     mingw32*)
2784         if test $target_os = "mingw32ce"; then
2785             disable network
2786         else
2787             target_os=mingw32
2788         fi
2789         LIBTARGET=i386
2790         if enabled x86_64; then
2791             LIBTARGET=x64
2792         elif enabled arm; then
2793             LIBTARGET=arm-wince
2794         fi
2795         shlibdir_default="$bindir_default"
2796         SLIBPREF=""
2797         SLIBSUF=".dll"
2798         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2799         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2800         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2801         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2802         SLIB_INSTALL_LINKS=
2803         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2804         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2805         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'
2806         objformat="win32"
2807         enable dos_paths
2808         check_cflags -fno-common
2809         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2810                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2811                 die "ERROR: MinGW runtime version must be >= 3.15."
2812         add_cppflags -U__STRICT_ANSI__
2813         ;;
2814     cygwin*)
2815         target_os=cygwin
2816         shlibdir_default="$bindir_default"
2817         SLIBPREF="cyg"
2818         SLIBSUF=".dll"
2819         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2820         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2821         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2822         objformat="win32"
2823         enable dos_paths
2824         check_cflags -fno-common
2825         add_cppflags -U__STRICT_ANSI__
2826         ;;
2827     *-dos|freedos|opendos)
2828         network_extralibs="-lsocket"
2829         objformat="coff"
2830         enable dos_paths
2831         add_cppflags -U__STRICT_ANSI__
2832         ;;
2833     linux)
2834         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2835         enable dv1394
2836         ;;
2837     irix*)
2838         target_os=irix
2839         ranlib="echo ignoring ranlib"
2840         ;;
2841     os/2*)
2842         strip="lxlite -CS"
2843         ln_s="cp -f"
2844         objformat="aout"
2845         add_cppflags -D_GNU_SOURCE
2846         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2847         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2848         FFSERVERLDFLAGS=""
2849         LIBSUF="_s.a"
2850         SLIBPREF=""
2851         SLIBSUF=".dll"
2852         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2853         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2854         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2855           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2856           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2857           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2858           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2859           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2860         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2861           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2862         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2863         enable dos_paths
2864         enable_weak os2threads
2865         ;;
2866     gnu/kfreebsd)
2867         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2868         ;;
2869     gnu)
2870         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2871         ;;
2872     qnx)
2873         add_cppflags -D_QNX_SOURCE
2874         network_extralibs="-lsocket"
2875         ;;
2876     symbian)
2877         SLIBSUF=".dll"
2878         enable dos_paths
2879         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2880         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2881         add_ldflags -Wl,--target1-abs,--no-undefined \
2882                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2883                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2884         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2885                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2886                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2887         ;;
2888     none)
2889         ;;
2890     *)
2891         die "Unknown OS '$target_os'."
2892         ;;
2893 esac
2894
2895 esc(){
2896     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2897 }
2898
2899 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2900
2901 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2902
2903 set_default $PATHS_LIST
2904
2905 # we need to build at least one lib type
2906 if ! enabled_any static shared; then
2907     cat <<EOF
2908 At least one library type must be built.
2909 Specify --enable-static to build the static libraries or --enable-shared to
2910 build the shared libraries as well. To only build the shared libraries specify
2911 --disable-static in addition to --enable-shared.
2912 EOF
2913     exit 1;
2914 fi
2915
2916 die_license_disabled() {
2917     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2918 }
2919
2920 die_license_disabled_gpl() {
2921     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2922 }
2923
2924 die_license_disabled gpl libcdio
2925 die_license_disabled gpl libutvideo
2926 die_license_disabled gpl libx264
2927 die_license_disabled gpl libxavs
2928 die_license_disabled gpl libxvid
2929 die_license_disabled gpl x11grab
2930
2931 die_license_disabled nonfree libaacplus
2932 die_license_disabled nonfree libfaac
2933 enabled gpl && die_license_disabled_gpl nonfree openssl
2934 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
2935
2936 die_license_disabled version3 libopencore_amrnb
2937 die_license_disabled version3 libopencore_amrwb
2938 die_license_disabled version3 libvo_aacenc
2939 die_license_disabled version3 libvo_amrwbenc
2940
2941 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2942
2943 disabled optimizations || check_cflags -fomit-frame-pointer
2944
2945 enable_pic() {
2946     enable pic
2947     add_cppflags -DPIC
2948     add_cflags   -fPIC
2949     add_asflags  -fPIC
2950 }
2951
2952 enabled pic && enable_pic
2953
2954 check_cc <<EOF || die "Symbol mangling check failed."
2955 int ff_extern;
2956 EOF
2957 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2958 extern_prefix=${sym%%ff_extern*}
2959
2960 check_cc <<EOF && enable inline_asm
2961 void foo(void) { __asm__ volatile ("" ::); }
2962 EOF
2963
2964 _restrict=
2965 for restrict_keyword in restrict __restrict__ __restrict; do
2966     check_cc <<EOF && _restrict=$restrict_keyword && break
2967 void foo(char * $restrict_keyword p);
2968 EOF
2969 done
2970
2971 check_cc <<EOF && enable attribute_packed
2972 struct { int x; } __attribute__((packed)) x;
2973 EOF
2974
2975 check_cc <<EOF && enable attribute_may_alias
2976 union { int x; } __attribute__((may_alias)) x;
2977 EOF
2978
2979 check_cc <<EOF || die "endian test failed"
2980 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2981 EOF
2982 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2983
2984 if enabled alpha; then
2985
2986     check_cflags -mieee
2987
2988 elif enabled arm; then
2989
2990     enabled thumb && check_cflags -mthumb || check_cflags -marm
2991     nogas=die
2992
2993     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2994         enable vfp_args
2995     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2996         case "${cross_prefix:-$cc}" in
2997             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2998             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2999 __asm__ (".eabi_attribute 28, 1");
3000 int main(void) { return 0; }
3001 EOF
3002         esac
3003         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3004     fi
3005
3006     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
3007     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
3008     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
3009     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
3010     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
3011     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
3012
3013     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3014
3015     enabled_all armv6t2 shared !pic && enable_pic
3016
3017 elif enabled mips; then
3018
3019     check_asm loongson '"dmult.g $1, $2, $3"'
3020     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
3021     enabled mips32r2  && add_cflags "-mips32r2" &&
3022      check_asm mips32r2  '"rotr $t0, $t1, 1"'
3023     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3024      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3025     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3026      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3027     enabled mipsfpu   && add_cflags "-mhard-float" &&
3028      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3029
3030
3031 elif enabled ppc; then
3032
3033     enable local_aligned_8 local_aligned_16
3034
3035     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3036     check_asm ibm_asm   '"add 0, 0, 0"'
3037     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3038     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3039
3040     # AltiVec flags: The FSF version of GCC differs from the Apple version
3041     if enabled altivec; then
3042         nogas=warn
3043         check_cflags -maltivec -mabi=altivec &&
3044         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3045         check_cflags -faltivec
3046
3047         # check if our compiler supports Motorola AltiVec C API
3048         check_cc <<EOF || disable altivec
3049 $inc_altivec_h
3050 int main(void) {
3051     vector signed int v1, v2, v3;
3052     v1 = vec_add(v2,v3);
3053     return 0;
3054 }
3055 EOF
3056
3057         # check if our compiler supports braces for vector declarations
3058         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3059 $inc_altivec_h
3060 int main (void) { (vector int) {1}; return 0; }
3061 EOF
3062     fi
3063
3064 elif enabled sparc; then
3065
3066     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3067         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3068
3069 elif enabled x86; then
3070
3071     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3072     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3073     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3074     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3075
3076     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3077
3078     enable local_aligned_8 local_aligned_16
3079
3080     # check whether EBP is available on x86
3081     # As 'i' is stored on the stack, this program will crash
3082     # if the base pointer is used to access it because the
3083     # base pointer is cleared in the inline assembly code.
3084     check_exec_crash <<EOF && enable ebp_available
3085     volatile int i=0;
3086     __asm__ volatile (
3087         "xorl %%ebp, %%ebp"
3088     ::: "%ebp");
3089     return i;
3090 EOF
3091
3092     # check whether EBX is available on x86
3093     check_asm ebx_available '""::"b"(0)' &&
3094         check_asm ebx_available '"":::"%ebx"'
3095
3096     # check whether xmm clobbers are supported
3097     check_asm xmm_clobbers '"":::"%xmm0"'
3098
3099     # check whether binutils is new enough to compile SSSE3/MMX2
3100     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3101     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3102
3103     if ! disabled_any asm mmx yasm; then
3104         if check_cmd $yasmexe --version; then
3105             enabled x86_64 && yasm_extra="-m amd64"
3106             yasm_debug="-g dwarf2"
3107         elif check_cmd nasm -v; then
3108             yasmexe=nasm
3109             yasm_debug="-g -F dwarf"
3110             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3111         fi
3112
3113         YASMFLAGS="-f $objformat $yasm_extra"
3114         enabled pic               && append YASMFLAGS "-DPIC"
3115         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3116         case "$objformat" in
3117             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3118         esac
3119
3120         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3121             die "yasm not found, use --disable-yasm for a crippled build"
3122         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3123     fi
3124
3125     case "$cpu" in
3126         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3127             disable fast_clz
3128         ;;
3129     esac
3130
3131 fi
3132
3133 if enabled asm; then
3134     as=${gas:=$as}
3135     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3136         $nogas "GNU assembler not found, install gas-preprocessor"
3137 fi
3138
3139 check_ldflags -Wl,--as-needed
3140
3141 if check_func dlopen; then
3142     ldl=
3143 elif check_func dlopen -ldl; then
3144     ldl=-ldl
3145 fi
3146
3147 if enabled network; then
3148     check_type "sys/types.h sys/socket.h" socklen_t
3149     check_type netdb.h "struct addrinfo"
3150     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3151     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3152     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3153     check_type netinet/in.h "struct sockaddr_in6"
3154     check_type poll.h "struct pollfd"
3155     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3156     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3157     check_header netinet/sctp.h
3158     # Prefer arpa/inet.h over winsock2
3159     if check_header arpa/inet.h ; then
3160         check_func closesocket
3161     elif check_header winsock2.h ; then
3162         check_func_headers winsock2.h closesocket -lws2 && \
3163             network_extralibs="-lws2" || \
3164         { check_func_headers winsock2.h closesocket -lws2_32 && \
3165             network_extralibs="-lws2_32"; }
3166         check_type ws2tcpip.h socklen_t
3167         check_type ws2tcpip.h "struct addrinfo"
3168         check_type ws2tcpip.h "struct group_source_req"
3169         check_type ws2tcpip.h "struct ip_mreq_source"
3170         check_type ws2tcpip.h "struct ipv6_mreq"
3171         check_type winsock2.h "struct pollfd"
3172         check_type ws2tcpip.h "struct sockaddr_in6"
3173         check_type ws2tcpip.h "struct sockaddr_storage"
3174         check_struct winsock2.h "struct sockaddr" sa_len
3175     else
3176         disable network
3177     fi
3178 fi
3179
3180 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3181 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3182
3183 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3184 check_func  fcntl
3185 check_func  fork
3186 check_func  getaddrinfo $network_extralibs ||
3187     check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3188 check_func  gethrtime
3189 check_func  getopt
3190 check_func  getrusage
3191 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3192 check_func  gettimeofday
3193 check_func  inet_aton $network_extralibs
3194 check_func  isatty
3195 check_func  localtime_r
3196 check_func  ${malloc_prefix}memalign            && enable memalign
3197 check_func  mkstemp
3198 check_func  mmap
3199 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3200 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3201 check_func  setrlimit
3202 check_func  strerror_r
3203 check_func  strptime
3204 check_func  sched_getaffinity
3205 check_func  sysconf
3206 check_func  sysctl
3207 check_func  usleep
3208 check_func_headers conio.h kbhit
3209 check_func_headers windows.h PeekNamedPipe
3210 check_func_headers io.h setmode
3211 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3212 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3213 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3214 check_func_headers windows.h GetProcessAffinityMask
3215 check_func_headers windows.h GetProcessTimes
3216 check_func_headers windows.h GetSystemTimeAsFileTime
3217 check_func_headers windows.h MapViewOfFile
3218 check_func_headers windows.h Sleep
3219 check_func_headers windows.h VirtualAlloc
3220 check_func_headers glob.h glob
3221
3222 check_header dlfcn.h
3223 check_header dxva.h
3224 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3225 check_header libcrystalhd/libcrystalhd_if.h
3226 check_header malloc.h
3227 check_header poll.h
3228 check_header sys/mman.h
3229 check_header sys/param.h
3230 check_header sys/resource.h
3231 check_header sys/select.h
3232 check_header sys/time.h
3233 check_header termios.h
3234 check_header unistd.h
3235 check_header vdpau/vdpau.h
3236 check_header vdpau/vdpau_x11.h
3237 check_header windows.h
3238 check_header X11/extensions/XvMClib.h
3239 check_header asm/types.h
3240
3241 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3242 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3243
3244 # check for VDA header
3245 if ! disabled vda; then
3246     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3247         enable vda
3248         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3249     fi
3250 fi
3251
3252 if ! disabled w32threads && ! enabled pthreads; then
3253     check_func _beginthreadex && enable w32threads
3254 fi
3255
3256 # check for some common methods of building with pthread support
3257 # do this before the optional library checks as some of them require pthreads
3258 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3259     enable pthreads
3260     if check_func pthread_create; then
3261         :
3262     elif check_func pthread_create -pthread; then
3263         add_cflags -pthread
3264         add_extralibs -pthread
3265     elif check_func pthread_create -pthreads; then
3266         add_cflags -pthreads
3267         add_extralibs -pthreads
3268     elif check_func pthread_create -lpthreadGC2; then
3269         add_extralibs -lpthreadGC2
3270     elif ! check_lib pthread.h pthread_create -lpthread; then
3271         disable pthreads
3272     fi
3273 fi
3274
3275 for thread in $THREADS_LIST; do
3276     if enabled $thread; then
3277         test -n "$thread_type" &&
3278             die "ERROR: Only one thread type must be selected." ||
3279             thread_type="$thread"
3280     fi
3281 done
3282
3283 if enabled pthreads; then
3284   check_func pthread_cancel
3285 fi
3286
3287 check_lib math.h sin -lm && LIBM="-lm"
3288 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3289 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3290
3291 check_mathfunc cbrtf
3292 check_mathfunc exp2
3293 check_mathfunc exp2f
3294 check_mathfunc isinf
3295 check_mathfunc isnan
3296 check_mathfunc llrint
3297 check_mathfunc llrintf
3298 check_mathfunc log2
3299 check_mathfunc log2f
3300 check_mathfunc lrint
3301 check_mathfunc lrintf
3302 check_mathfunc rint
3303 check_mathfunc round
3304 check_mathfunc roundf
3305 check_mathfunc trunc
3306 check_mathfunc truncf
3307
3308 # these are off by default, so fail if requested and not available
3309 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3310 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3311 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3312 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3313 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3314 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3315 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3316 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3317 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3318                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3319                         die "ERROR: libcelt version must be >= 0.11.0."; }
3320 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3321 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3322 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3323 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3324 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3325 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3326 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3327 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3328 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3329 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3330 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3331 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3332 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3333 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3334 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3335 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3336 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3337     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3338     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3339 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3340 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3341 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3342 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3343 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3344 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3345 enabled libvpx     && {
3346     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3347                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3348     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3349                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3350 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3351                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3352                         die "ERROR: libx264 version must be >= 0.118."; }
3353 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3354 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3355 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3356                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3357                         die "ERROR: openal not found"; } &&
3358                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3359                         die "ERROR: openal version must be 1.1 or compatible"; }
3360 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3361                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3362                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3363                         die "ERROR: openssl not found"; }
3364
3365 # libdc1394 check
3366 if enabled libdc1394; then
3367     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3368         enable libdc1394_2; } ||
3369     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3370         enable libdc1394_1; } ||
3371     die "ERROR: No version of libdc1394 found "
3372 fi
3373
3374 SDL_CONFIG="${cross_prefix}sdl-config"
3375 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
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 $sdl_cflags && enable sdl_video_size
3379 else
3380   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3381     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3382     sdl_libs=$("${SDL_CONFIG}" --libs)
3383     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3384     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3385     enable sdl &&
3386     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3387   fi
3388 fi
3389 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3390
3391 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3392 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3393 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3394
3395 check_header linux/fb.h
3396 check_header linux/videodev.h
3397 check_header linux/videodev2.h
3398 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3399
3400 check_header sys/videoio.h
3401
3402 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3403 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3404 # w32api 3.12 had it defined wrong
3405 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3406
3407 check_type "dshow.h" IBaseFilter
3408
3409 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3410 { check_header dev/bktr/ioctl_meteor.h &&
3411   check_header dev/bktr/ioctl_bt848.h; } ||
3412 { check_header machine/ioctl_meteor.h &&
3413   check_header machine/ioctl_bt848.h; } ||
3414 { check_header dev/video/meteor/ioctl_meteor.h &&
3415   check_header dev/video/bktr/ioctl_bt848.h; } ||
3416 check_header dev/ic/bt8xx.h
3417
3418 check_header sndio.h
3419 if check_struct sys/soundcard.h audio_buf_info bytes; then
3420     enable_safe sys/soundcard.h
3421 else
3422     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3423     #include <sys/soundcard.h>
3424     audio_buf_info abc;
3425 EOF
3426 fi
3427 check_header soundcard.h
3428
3429 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3430
3431 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3432     check_func jack_port_get_latency_range -ljack
3433
3434 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3435
3436 enabled libcdio &&
3437     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3438
3439 enabled x11grab                                           &&
3440 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3441 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3442 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3443
3444 if ! disabled vaapi; then
3445     check_lib va/va.h vaInitialize -lva && {
3446         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3447         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3448     } || disable vaapi
3449 fi
3450
3451 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3452 check_cpp_condition \
3453     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3454     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3455       disable vdpau; }
3456 fi
3457
3458 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3459 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3460 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"
3461
3462 # add some useful compiler flags if supported
3463 check_cflags -Wdeclaration-after-statement
3464 check_cflags -Wall
3465 check_cflags -Wno-parentheses
3466 check_cflags -Wno-switch
3467 check_cflags -Wno-format-zero-length
3468 check_cflags -Wdisabled-optimization
3469 check_cflags -Wpointer-arith
3470 check_cflags -Wredundant-decls
3471 check_cflags -Wno-pointer-sign
3472 check_cflags -Wwrite-strings
3473 check_cflags -Wtype-limits
3474 check_cflags -Wundef
3475 check_cflags -Wmissing-prototypes
3476 check_cflags -Wno-pointer-to-int-cast
3477 check_cflags -Wstrict-prototypes
3478 enabled extra_warnings && check_cflags -Winline
3479
3480 # add some linker flags
3481 check_ldflags -Wl,--warn-common
3482 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3483 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3484
3485 enabled xmm_clobber_test &&                             \
3486     check_ldflags -Wl,--wrap,avcodec_open2              \
3487                   -Wl,--wrap,avcodec_decode_audio4      \
3488                   -Wl,--wrap,avcodec_decode_video2      \
3489                   -Wl,--wrap,avcodec_decode_subtitle2   \
3490                   -Wl,--wrap,avcodec_encode_audio2      \
3491                   -Wl,--wrap,avcodec_encode_video       \
3492                   -Wl,--wrap,avcodec_encode_subtitle    \
3493                   -Wl,--wrap,sws_scale ||               \
3494     disable xmm_clobber_test
3495
3496 echo "X{};" > $TMPV
3497 if test_ldflags -Wl,--version-script,$TMPV; then
3498     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3499     check_cc <<EOF && enable symver_asm_label
3500 void ff_foo(void) __asm__ ("av_foo@VERSION");
3501 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3502 EOF
3503     check_cc <<EOF && enable symver_gnu_asm
3504 __asm__(".symver ff_foo,av_foo@VERSION");
3505 void ff_foo(void) {}
3506 EOF
3507 fi
3508
3509 if [ -n "$optflags" ]; then
3510     add_cflags $optflags
3511 elif enabled small; then
3512     add_cflags $size_cflags
3513 elif enabled optimizations; then
3514     add_cflags $speed_cflags
3515 else
3516     add_cflags $noopt_cflags
3517 fi
3518 check_cflags -fno-math-errno
3519 check_cflags -fno-signed-zeros
3520 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3521 int x;
3522 EOF
3523
3524
3525 if enabled icc; then
3526     # Just warnings, no remarks
3527     check_cflags -w1
3528     # -wd: Disable following warnings
3529     # 144, 167, 556: -Wno-pointer-sign
3530     # 1292: attribute "foo" ignored
3531     # 1419: external declaration in primary source file
3532     # 10006: ignoring unknown option -fno-signed-zeros
3533     # 10148: ignoring unknown option -Wno-parentheses
3534     # 10156: ignoring option '-W'; no argument required
3535     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3536     # 11030: Warning unknown option --as-needed
3537     # 10156: ignoring option '-export'; no argument required
3538     check_ldflags -wd10156,11030
3539     # Allow to compile with optimizations
3540     check_ldflags -march=$cpu
3541     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3542     enable ebp_available
3543     if enabled x86_32; then
3544         test ${icc_version%%.*} -ge 11 && \
3545             check_cflags -falign-stack=maintain-16-byte || \
3546             disable aligned_stack
3547     fi
3548 elif enabled ccc; then
3549     # disable some annoying warnings
3550     add_cflags -msg_disable cvtu32to64
3551     add_cflags -msg_disable embedcomment
3552     add_cflags -msg_disable needconstext
3553     add_cflags -msg_disable nomainieee
3554     add_cflags -msg_disable ptrmismatch1
3555     add_cflags -msg_disable unreachcode
3556 elif enabled gcc; then
3557     check_cflags -fno-tree-vectorize
3558     check_cflags -Werror=implicit-function-declaration
3559     check_cflags -Werror=missing-prototypes
3560 elif enabled llvm_gcc; then
3561     check_cflags -mllvm -stack-alignment=16
3562 elif enabled clang; then
3563     check_cflags -mllvm -stack-alignment=16
3564     check_cflags -Qunused-arguments
3565 elif enabled armcc; then
3566     # 2523: use of inline assembler is deprecated
3567     add_cflags -W${armcc_opt},--diag_suppress=2523
3568     add_cflags -W${armcc_opt},--diag_suppress=1207
3569     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3570     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3571     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3572     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3573 elif enabled tms470; then
3574     add_cflags -pds=824 -pds=837
3575 elif enabled pathscale; then
3576     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3577 fi
3578
3579 enabled_any $THREADS_LIST      && enable threads
3580
3581 check_deps $CONFIG_LIST       \
3582            $CONFIG_EXTRA      \
3583            $HAVE_LIST         \
3584            $ALL_COMPONENTS    \
3585            $ALL_TESTS         \
3586
3587 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3588
3589 if test $target_os = "haiku"; then
3590     disable memalign
3591     disable posix_memalign
3592 fi
3593
3594 ! enabled_any memalign posix_memalign aligned_malloc &&
3595     enabled_any $need_memalign && enable memalign_hack
3596
3597 # add_dep lib dep
3598 # -> enable ${lib}_deps_${dep}
3599 # -> add $dep to ${lib}_deps only once
3600 add_dep() {
3601     lib=$1
3602     dep=$2
3603     enabled "${lib}_deps_${dep}" && return 0
3604     enable  "${lib}_deps_${dep}"
3605     prepend "${lib}_deps" $dep
3606 }
3607
3608 # merge deps lib components
3609 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3610 merge_deps() {
3611     lib=$1
3612     shift
3613     for comp in $*; do
3614         enabled $comp || continue
3615         eval "dep=\"\$${comp}_deps\""
3616         for d in $dep; do
3617             add_dep $lib $d
3618         done
3619     done
3620 }
3621
3622 merge_deps libavfilter $FILTER_LIST
3623
3624 echo "install prefix            $prefix"
3625 echo "source path               $source_path"
3626 echo "C compiler                $cc"
3627 echo "ARCH                      $arch ($cpu)"
3628 if test "$build_suffix" != ""; then
3629     echo "build suffix              $build_suffix"
3630 fi
3631 if test "$progs_suffix" != ""; then
3632     echo "progs suffix              $progs_suffix"
3633 fi
3634 if test "$extra_version" != ""; then
3635     echo "version string suffix     $extra_version"
3636 fi
3637 echo "big-endian                ${bigendian-no}"
3638 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3639 if enabled x86; then
3640     echo "${yasmexe}                      ${yasm-no}"
3641     echo "MMX enabled               ${mmx-no}"
3642     echo "MMX2 enabled              ${mmx2-no}"
3643     echo "3DNow! enabled            ${amd3dnow-no}"
3644     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3645     echo "SSE enabled               ${sse-no}"
3646     echo "SSSE3 enabled             ${ssse3-no}"
3647     echo "AVX enabled               ${avx-no}"
3648     echo "CMOV enabled              ${cmov-no}"
3649     echo "CMOV is fast              ${fast_cmov-no}"
3650     echo "EBX available             ${ebx_available-no}"
3651     echo "EBP available             ${ebp_available-no}"
3652 fi
3653 if enabled arm; then
3654     echo "ARMv5TE enabled           ${armv5te-no}"
3655     echo "ARMv6 enabled             ${armv6-no}"
3656     echo "ARMv6T2 enabled           ${armv6t2-no}"
3657     echo "ARM VFP enabled           ${armvfp-no}"
3658     echo "NEON enabled              ${neon-no}"
3659 fi
3660 if enabled mips; then
3661     echo "MMI enabled               ${mmi-no}"
3662     echo "MIPS FPU enabled          ${mipsfpu-no}"
3663     echo "MIPS32R2 enabled          ${mips32r2-no}"
3664     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3665     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3666 fi
3667 if enabled ppc; then
3668     echo "AltiVec enabled           ${altivec-no}"
3669     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3670     echo "dcbzl available           ${dcbzl-no}"
3671 fi
3672 if enabled sparc; then
3673     echo "VIS enabled               ${vis-no}"
3674 fi
3675 echo "debug symbols             ${debug-no}"
3676 echo "strip symbols             ${stripping-no}"
3677 echo "optimize for size         ${small-no}"
3678 echo "optimizations             ${optimizations-no}"
3679 echo "static                    ${static-no}"
3680 echo "shared                    ${shared-no}"
3681 echo "postprocessing support    ${postproc-no}"
3682 echo "new filter support        ${avfilter-no}"
3683 echo "network support           ${network-no}"
3684 echo "threading support         ${thread_type-no}"
3685 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3686 echo "SDL support               ${sdl-no}"
3687 echo "libdxva2 enabled          ${dxva2-no}"
3688 echo "libva enabled             ${vaapi-no}"
3689 echo "libvdpau enabled          ${vdpau-no}"
3690 echo "AVISynth enabled          ${avisynth-no}"
3691 echo "frei0r enabled            ${frei0r-no}"
3692 echo "gnutls enabled            ${gnutls-no}"
3693 echo "libaacplus enabled        ${libaacplus-no}"
3694 echo "libass enabled            ${libass-no}"
3695 echo "libcdio support           ${libcdio-no}"
3696 echo "libcelt enabled           ${libcelt-no}"
3697 echo "libdc1394 support         ${libdc1394-no}"
3698 echo "libfaac enabled           ${libfaac-no}"
3699 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3700 echo "libgsm enabled            ${libgsm-no}"
3701 echo "libiec61883 support       ${libiec61883-no}"
3702 echo "libilbc enabled           ${libilbc-no}"
3703 echo "libmodplug enabled        ${libmodplug-no}"
3704 echo "libmp3lame enabled        ${libmp3lame-no}"
3705 echo "libnut enabled            ${libnut-no}"
3706 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3707 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3708 echo "libopencv support         ${libopencv-no}"
3709 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3710 echo "libpulse enabled          ${libpulse-no}"
3711 echo "librtmp enabled           ${librtmp-no}"
3712 echo "libschroedinger enabled   ${libschroedinger-no}"
3713 echo "libspeex enabled          ${libspeex-no}"
3714 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3715 echo "libtheora enabled         ${libtheora-no}"
3716 echo "libutvideo enabled        ${libutvideo-no}"
3717 echo "libv4l2 enabled           ${libv4l2-no}"
3718 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3719 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3720 echo "libvorbis enabled         ${libvorbis-no}"
3721 echo "libvpx enabled            ${libvpx-no}"
3722 echo "libx264 enabled           ${libx264-no}"
3723 echo "libxavs enabled           ${libxavs-no}"
3724 echo "libxvid enabled           ${libxvid-no}"
3725 echo "openal enabled            ${openal-no}"
3726 echo "openssl enabled           ${openssl-no}"
3727 echo "zlib enabled              ${zlib-no}"
3728 echo "bzlib enabled             ${bzlib-no}"
3729 test -n "$random_seed" &&
3730     echo "random seed               ${random_seed}"
3731 echo
3732
3733 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3734     echo "Enabled ${type}s:"
3735     eval list=\$$(toupper $type)_LIST
3736     print_enabled '_*' $list | sort | pr -r -3 -t
3737     echo
3738 done
3739
3740 license="LGPL version 2.1 or later"
3741 if enabled nonfree; then
3742     license="nonfree and unredistributable"
3743 elif enabled gplv3; then
3744     license="GPL version 3 or later"
3745 elif enabled lgplv3; then
3746     license="LGPL version 3 or later"
3747 elif enabled gpl; then
3748     license="GPL version 2 or later"
3749 fi
3750
3751 echo "License: $license"
3752
3753 echo "Creating config.mak and config.h..."
3754
3755 test -e Makefile || $ln_s "$source_path/Makefile" .
3756
3757 enabled stripping || strip="echo skipping strip"
3758
3759 config_files="$TMPH config.mak"
3760
3761 cat > config.mak <<EOF
3762 # Automatically generated by configure - do not modify!
3763 ifndef FFMPEG_CONFIG_MAK
3764 FFMPEG_CONFIG_MAK=1
3765 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3766 prefix=$prefix
3767 LIBDIR=\$(DESTDIR)$libdir
3768 SHLIBDIR=\$(DESTDIR)$shlibdir
3769 INCDIR=\$(DESTDIR)$incdir
3770 BINDIR=\$(DESTDIR)$bindir
3771 DATADIR=\$(DESTDIR)$datadir
3772 MANDIR=\$(DESTDIR)$mandir
3773 SRC_PATH=$source_path
3774 ifndef MAIN_MAKEFILE
3775 SRC_PATH:=\$(SRC_PATH:.%=..%)
3776 endif
3777 CC_IDENT=$cc_ident
3778 ARCH=$arch
3779 CC=$cc
3780 CXX=$cxx
3781 AS=$as
3782 LD=$ld
3783 DEPCC=$dep_cc
3784 YASM=$yasmexe
3785 YASMDEP=$yasmexe
3786 AR=$ar
3787 RANLIB=$ranlib
3788 CP=cp -p
3789 LN_S=$ln_s
3790 STRIP=$strip
3791 CPPFLAGS=$CPPFLAGS
3792 CFLAGS=$CFLAGS
3793 CXXFLAGS=$CXXFLAGS
3794 ASFLAGS=$ASFLAGS
3795 AS_O=$CC_O
3796 CC_O=$CC_O
3797 CXX_O=$CXX_O
3798 LDFLAGS=$LDFLAGS
3799 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3800 SHFLAGS=$SHFLAGS
3801 YASMFLAGS=$YASMFLAGS
3802 BUILDSUF=$build_suffix
3803 PROGSSUF=$progs_suffix
3804 FULLNAME=$FULLNAME
3805 LIBPREF=$LIBPREF
3806 LIBSUF=$LIBSUF
3807 LIBNAME=$LIBNAME
3808 SLIBPREF=$SLIBPREF
3809 SLIBSUF=$SLIBSUF
3810 EXESUF=$EXESUF
3811 EXTRA_VERSION=$extra_version
3812 DEPFLAGS=$DEPFLAGS
3813 CCDEP=$CCDEP
3814 CXXDEP=$CXXDEP
3815 ASDEP=$ASDEP
3816 CC_DEPFLAGS=$CC_DEPFLAGS
3817 AS_DEPFLAGS=$AS_DEPFLAGS
3818 HOSTCC=$host_cc
3819 HOSTCFLAGS=$host_cflags
3820 HOSTEXESUF=$HOSTEXESUF
3821 HOSTLDFLAGS=$host_ldflags
3822 HOSTLIBS=$host_libs
3823 TARGET_EXEC=$target_exec
3824 TARGET_PATH=$target_path
3825 SDL_LIBS=$sdl_libs
3826 SDL_CFLAGS=$sdl_cflags
3827 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3828 EXTRALIBS=$extralibs
3829 INSTALL=$install
3830 LIBTARGET=${LIBTARGET}
3831 SLIBNAME=${SLIBNAME}
3832 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3833 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3834 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3835 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3836 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3837 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3838 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3839 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3840 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3841 NOREDZONE_FLAGS=$noredzone_flags
3842 EOF
3843
3844 get_version(){
3845     lcname=$1
3846     name=$(toupper $lcname)
3847     file=$source_path/$lcname/version.h
3848     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3849     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3850     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3851     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3852 }
3853
3854 get_version_old(){
3855     name=$1
3856     file=$source_path/$2
3857 # This condition will be removed when we stop supporting old libpostproc versions
3858 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3859     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3860     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3861 fi
3862     lcname=$(tolower $name)
3863     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3864     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3865 }
3866
3867 get_version_old LIBPOSTPROC libpostproc/postprocess.h
3868 get_version_old LIBSWRESAMPLE libswresample/swresample.h
3869
3870 get_version libavcodec
3871 get_version libavdevice
3872 get_version libavfilter
3873 get_version libavformat
3874 get_version libavresample
3875 get_version libavutil
3876 get_version libswscale
3877
3878 cat > $TMPH <<EOF
3879 /* Automatically generated by configure - do not modify! */
3880 #ifndef FFMPEG_CONFIG_H
3881 #define FFMPEG_CONFIG_H
3882 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3883 #define FFMPEG_LICENSE "$(c_escape $license)"
3884 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3885 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3886 #define CC_TYPE "$cc_type"
3887 #define CC_VERSION $cc_version
3888 #define av_restrict $_restrict
3889 #define EXTERN_PREFIX "${extern_prefix}"
3890 #define EXTERN_ASM ${extern_prefix}
3891 #define SLIBSUF "$SLIBSUF"
3892 EOF
3893
3894 test -n "$assert_level" &&
3895     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3896
3897 test -n "$malloc_prefix" &&
3898     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3899
3900 if enabled yasm; then
3901     append config_files $TMPASM
3902     printf '' >$TMPASM
3903 fi
3904
3905 print_config ARCH_   "$config_files" $ARCH_LIST
3906 print_config HAVE_   "$config_files" $HAVE_LIST
3907 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3908                                      $CONFIG_EXTRA      \
3909                                      $ALL_COMPONENTS    \
3910
3911 cat >>config.mak <<EOF
3912 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3913 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3914 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3915 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3916 EOF
3917
3918 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3919 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3920
3921 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3922 cp_if_changed $TMPH config.h
3923 touch .config
3924
3925 enabled yasm && cp_if_changed $TMPASM config.asm
3926
3927 cat > $TMPH <<EOF
3928 /* Generated by ffconf */
3929 #ifndef AVUTIL_AVCONFIG_H
3930 #define AVUTIL_AVCONFIG_H
3931 EOF
3932
3933 test "$postproc_version" != current && cat >> $TMPH <<EOF
3934 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3935 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3936 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3937 EOF
3938
3939 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3940
3941 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3942
3943 cp_if_changed $TMPH libavutil/avconfig.h
3944
3945 test -n "$WARNINGS" && printf "\n$WARNINGS"
3946
3947 # build pkg-config files
3948
3949 pkgconfig_generate(){
3950 name=$1
3951 shortname=${name#lib}${build_suffix}
3952 comment=$2
3953 version=$3
3954 libs=$4
3955 requires=$5
3956 enabled ${name#lib} || return 0
3957 mkdir -p $name
3958 cat <<EOF > $name/$name.pc
3959 prefix=$prefix
3960 exec_prefix=\${prefix}
3961 libdir=$libdir
3962 includedir=$incdir
3963
3964 Name: $name
3965 Description: $comment
3966 Version: $version
3967 Requires: $(enabled shared || echo $requires)
3968 Requires.private: $(enabled shared && echo $requires)
3969 Conflicts:
3970 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3971 Libs.private: $(enabled shared && echo $libs)
3972 Cflags: -I\${includedir}
3973 EOF
3974
3975 mkdir -p doc/examples/pc-uninstalled
3976 includedir=${source_path}
3977 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
3978 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
3979 prefix=
3980 exec_prefix=
3981 libdir=\${pcfiledir}/../../../$name
3982 includedir=${includedir}
3983
3984 Name: $name
3985 Description: $comment
3986 Version: $version
3987 Requires: $requires
3988 Conflicts:
3989 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3990 Cflags: -I\${includedir}
3991 EOF
3992 }
3993
3994 libavfilter_pc_deps=""
3995 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
3996 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
3997 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
3998 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
3999 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4000 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4001
4002 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4003 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4004
4005 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4006 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4007 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4008 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4009 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4010 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4011 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4012 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4013 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"