6f12fd246e454b56102d946eefa61bbd5ab4d69d
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Component options:
103   --disable-doc            do not build documentation
104   --disable-ffmpeg         disable ffmpeg build
105   --disable-ffplay         disable ffplay build
106   --disable-ffprobe        disable ffprobe build
107   --disable-ffserver       disable ffserver build
108   --disable-avdevice       disable libavdevice build
109   --disable-avcodec        disable libavcodec build
110   --disable-avformat       disable libavformat build
111   --disable-swresample     disable libswresample build
112   --disable-swscale        disable libswscale build
113   --disable-postproc       disable libpostproc build
114   --disable-avfilter       disable libavfilter build
115   --enable-avresample      enable libavresample build [no]
116   --disable-pthreads       disable pthreads [auto]
117   --disable-w32threads     disable Win32 threads [auto]
118   --disable-os2threads     disable OS/2 threads [auto]
119   --enable-x11grab         enable X11 grabbing [no]
120   --disable-network        disable network support [no]
121   --disable-dct            disable DCT code
122   --disable-mdct           disable MDCT code
123   --disable-rdft           disable RDFT code
124   --disable-fft            disable FFT code
125   --enable-dxva2           enable DXVA2 code
126   --enable-vaapi           enable VAAPI code [autodetect]
127   --enable-vda             enable VDA code   [autodetect]
128   --enable-vdpau           enable VDPAU code [autodetect]
129
130 Individual component options:
131   --disable-everything     disable all components listed below
132   --disable-encoder=NAME   disable encoder NAME
133   --enable-encoder=NAME    enable encoder NAME
134   --disable-encoders       disable all encoders
135   --disable-decoder=NAME   disable decoder NAME
136   --enable-decoder=NAME    enable decoder NAME
137   --disable-decoders       disable all decoders
138   --disable-hwaccel=NAME   disable hwaccel NAME
139   --enable-hwaccel=NAME    enable hwaccel NAME
140   --disable-hwaccels       disable all hwaccels
141   --disable-muxer=NAME     disable muxer NAME
142   --enable-muxer=NAME      enable muxer NAME
143   --disable-muxers         disable all muxers
144   --disable-demuxer=NAME   disable demuxer NAME
145   --enable-demuxer=NAME    enable demuxer NAME
146   --disable-demuxers       disable all demuxers
147   --enable-parser=NAME     enable parser NAME
148   --disable-parser=NAME    disable parser NAME
149   --disable-parsers        disable all parsers
150   --enable-bsf=NAME        enable bitstream filter NAME
151   --disable-bsf=NAME       disable bitstream filter NAME
152   --disable-bsfs           disable all bitstream filters
153   --enable-protocol=NAME   enable protocol NAME
154   --disable-protocol=NAME  disable protocol NAME
155   --disable-protocols      disable all protocols
156   --enable-indev=NAME      enable input device NAME
157   --disable-indev=NAME     disable input device NAME
158   --disable-indevs         disable input devices
159   --enable-outdev=NAME     enable output device NAME
160   --disable-outdev=NAME    disable output device NAME
161   --disable-outdevs        disable output devices
162   --disable-devices        disable all devices
163   --enable-filter=NAME     enable filter NAME
164   --disable-filter=NAME    disable filter NAME
165   --disable-filters        disable all filters
166
167 External library support:
168   --enable-avisynth        enable reading of AVISynth script files [no]
169   --enable-bzlib           enable bzlib [autodetect]
170   --enable-fontconfig      enable fontconfig
171   --enable-frei0r          enable frei0r video filtering
172   --enable-gnutls          enable gnutls [no]
173   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
174   --enable-libass          enable libass subtitles rendering [no]
175   --enable-libbluray       enable BluRay reading using libbluray [no]
176   --enable-libcelt         enable CELT decoding via libcelt [no]
177   --enable-libcdio         enable audio CD grabbing with libcdio
178   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
179                            and libraw1394 [no]
180   --enable-libfaac         enable 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 de/encoding via OpenJPEG [no]
194   --enable-libpulse        enable Pulseaudio input via libpulse [no]
195   --enable-librtmp         enable RTMP[E] support via librtmp [no]
196   --enable-libschroedinger enable Dirac support via libschroedinger [no]
197   --enable-libspeex        enable Speex support via libspeex [no]
198   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
199   --enable-libtheora       enable Theora encoding via libtheora [no]
200   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
201   --enable-libv4l2         enable libv4l2/v4l-utils [no]
202   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
203   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
204   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
205                            native implementation exists [no]
206   --enable-libvpx          enable VP8 support via libvpx [no]
207   --enable-libx264         enable H.264 encoding via x264 [no]
208   --enable-libxavs         enable AVS encoding via xavs [no]
209   --enable-libxvid         enable Xvid encoding via xvidcore,
210                            native MPEG-4/Xvid encoder exists [no]
211   --enable-openal          enable OpenAL 1.1 capture support [no]
212   --enable-openssl         enable openssl [no]
213   --enable-zlib            enable zlib [autodetect]
214
215 Advanced options (experts only):
216   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
217   --enable-cross-compile   assume a cross-compiler is used
218   --sysroot=PATH           root of cross-build tree
219   --sysinclude=PATH        location of cross-build system headers
220   --target-os=OS           compiler targets OS [$target_os]
221   --target-exec=CMD        command to run executables on target
222   --target-path=DIR        path to view of build directory on target
223   --nm=NM                  use nm tool NM [$nm_default]
224   --ar=AR                  use archive tool AR [$ar_default]
225   --as=AS                  use assembler AS [$as_default]
226   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
227   --cc=CC                  use C compiler CC [$cc_default]
228   --cxx=CXX                use C compiler CXX [$cxx_default]
229   --ld=LD                  use linker LD [$ld_default]
230   --host-cc=HOSTCC         use host C compiler HOSTCC
231   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
232   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
233   --host-libs=HLIBS        use libs HLIBS when linking for host
234   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
235   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
236   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
237   --extra-libs=ELIBS       add ELIBS [$ELIBS]
238   --extra-version=STRING   version string suffix []
239   --optflags               override optimization-related compiler flags
240   --build-suffix=SUFFIX    library name suffix []
241   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
242   --progs-suffix=SUFFIX    program name suffix []
243   --arch=ARCH              select architecture [$arch]
244   --cpu=CPU                select the minimum required CPU (affects
245                            instruction selection, may crash on older CPUs)
246   --enable-pic             build position-independent code
247   --enable-sram            allow use of on-chip SRAM
248   --disable-symver         disable symbol versioning
249   --disable-fastdiv        disable table-based division
250   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
251   --disable-safe-bitstream-reader
252                            disable buffer boundary checking in bitreaders
253                            (faster, but may crash)
254   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
255
256 Optimization options (experts only):
257   --disable-asm            disable all assembler optimizations
258   --disable-altivec        disable AltiVec optimizations
259   --disable-amd3dnow       disable 3DNow! optimizations
260   --disable-amd3dnowext    disable 3DNow! extended optimizations
261   --disable-mmx            disable MMX optimizations
262   --disable-mmx2           disable MMX2 optimizations
263   --disable-sse            disable SSE optimizations
264   --disable-ssse3          disable SSSE3 optimizations
265   --disable-avx            disable AVX optimizations
266   --disable-armv5te        disable armv5te optimizations
267   --disable-armv6          disable armv6 optimizations
268   --disable-armv6t2        disable armv6t2 optimizations
269   --disable-armvfp         disable ARM VFP optimizations
270   --disable-mmi            disable MMI optimizations
271   --disable-neon           disable NEON optimizations
272   --disable-vis            disable VIS optimizations
273   --disable-yasm           disable use of yasm assembler
274   --disable-mips32r2       disable MIPS32R2 optimizations
275   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
276   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
277   --disable-mipsfpu        disable floating point MIPS optimizations
278   --disable-fast-unaligned consider unaligned accesses slow
279   --postproc-version=V     build libpostproc version V.
280                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
281
282 Developer options (useful when working on FFmpeg itself):
283   --enable-coverage        build with test coverage instrumentation
284   --disable-debug          disable debugging symbols
285   --enable-debug=LEVEL     set the debug level [$debuglevel]
286   --disable-optimizations  disable compiler optimizations
287   --enable-extra-warnings  enable more compiler warnings
288   --disable-stripping      disable stripping of executables and shared libraries
289   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
290                            2 causes a slowdown at runtime.
291   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
292   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
293                            leaks and errors, using the specified valgrind binary.
294                            Cannot be combined with --target-exec
295   --samples=PATH           location of test samples for FATE, if not set use
296                            \$FATE_SAMPLES at make invocation time.
297   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
298                            should be used only for debugging purposes)
299   --enable-random          randomly enable/disable components
300   --disable-random
301   --enable-random=LIST     randomly enable/disable specific components or
302   --disable-random=LIST    component groups. LIST is a comma-separated list
303                            of NAME[:PROB] entries where NAME is a component
304                            (group) and PROB the probability associated with
305                            NAME (default 0.5).
306   --random-seed=VALUE      seed value for --enable/disable-random
307
308 NOTE: Object files are built at the place where configure is launched.
309 EOF
310   exit 0
311 }
312
313 quotes='""'
314
315 log(){
316     echo "$@" >> $logfile
317 }
318
319 log_file(){
320     log BEGIN $1
321     pr -n -t $1 >> $logfile
322     log END $1
323 }
324
325 echolog(){
326     log "$@"
327     echo "$@"
328 }
329
330 warn(){
331     log "WARNING: $*"
332     WARNINGS="${WARNINGS}WARNING: $*\n"
333 }
334
335 die(){
336     echolog "$@"
337     cat <<EOF
338
339 If you think configure made a mistake, make sure you are using the latest
340 version from Git.  If the latest version fails, report the problem to the
341 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
342 EOF
343     if disabled logging; then
344         cat <<EOF
345 Rerun configure with logging enabled (do not use --disable-logging), and
346 include the log this produces with your report.
347 EOF
348     else
349 cat <<EOF
350 Include the log file "$logfile" produced by configure as this will help
351 solving the problem.
352 EOF
353     fi
354     exit 1
355 }
356
357 # Avoid locale weirdness, besides we really just want to translate ASCII.
358 toupper(){
359     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
360 }
361
362 tolower(){
363     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
364 }
365
366 c_escape(){
367     echo "$*" | sed 's/["\\]/\\\0/g'
368 }
369
370 sh_quote(){
371     v=$(echo "$1" | sed "s/'/'\\\\''/g")
372     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
373     echo "$v"
374 }
375
376 cleanws(){
377     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
378 }
379
380 filter(){
381     pat=$1
382     shift
383     for v; do
384         eval "case $v in $pat) echo $v ;; esac"
385     done
386 }
387
388 filter_out(){
389     pat=$1
390     shift
391     for v; do
392         eval "case $v in $pat) ;; *) echo $v ;; esac"
393     done
394 }
395
396 map(){
397     m=$1
398     shift
399     for v; do eval $m; done
400 }
401
402 set_all(){
403     value=$1
404     shift
405     for var in $*; do
406         eval $var=$value
407     done
408 }
409
410 set_weak(){
411     value=$1
412     shift
413     for var; do
414         eval : \${$var:=$value}
415     done
416 }
417
418 set_safe(){
419     var=$1
420     shift
421     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
422 }
423
424 get_safe(){
425     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
426 }
427
428 pushvar(){
429     for var in $*; do
430         eval level=\${${var}_level:=0}
431         eval ${var}_${level}="\$$var"
432         eval ${var}_level=$(($level+1))
433     done
434 }
435
436 popvar(){
437     for var in $*; do
438         eval level=\${${var}_level:-0}
439         test $level = 0 && continue
440         eval level=$(($level-1))
441         eval $var="\${${var}_${level}}"
442         eval ${var}_level=$level
443         eval unset ${var}_${level}
444     done
445 }
446
447 enable(){
448     set_all yes $*
449 }
450
451 disable(){
452     set_all no $*
453 }
454
455 enable_weak(){
456     set_weak yes $*
457 }
458
459 disable_weak(){
460     set_weak no $*
461 }
462
463 enable_safe(){
464     for var; do
465         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
466     done
467 }
468
469 disable_safe(){
470     for var; do
471         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
472     done
473 }
474
475 do_enable_deep(){
476     for var; do
477         enabled $var && continue
478         eval sel="\$${var}_select"
479         eval sgs="\$${var}_suggest"
480         pushvar var sgs
481         enable_deep $sel
482         popvar sgs
483         enable_deep_weak $sgs
484         popvar var
485     done
486 }
487
488 enable_deep(){
489     do_enable_deep $*
490     enable $*
491 }
492
493 enable_deep_weak(){
494     do_enable_deep $*
495     enable_weak $*
496 }
497
498 enabled(){
499     test "${1#!}" = "$1" && op== || op=!=
500     eval test "x\$${1#!}" $op "xyes"
501 }
502
503 disabled(){
504     test "${1#!}" = "$1" && op== || op=!=
505     eval test "x\$${1#!}" $op "xno"
506 }
507
508 enabled_all(){
509     for opt; do
510         enabled $opt || return 1
511     done
512 }
513
514 disabled_all(){
515     for opt; do
516         disabled $opt || return 1
517     done
518 }
519
520 enabled_any(){
521     for opt; do
522         enabled $opt && return 0
523     done
524 }
525
526 disabled_any(){
527     for opt; do
528         disabled $opt && return 0
529     done
530     return 1
531 }
532
533 set_default(){
534     for opt; do
535         eval : \${$opt:=\$${opt}_default}
536     done
537 }
538
539 is_in(){
540     value=$1
541     shift
542     for var in $*; do
543         [ $var = $value ] && return 0
544     done
545     return 1
546 }
547
548 check_deps(){
549     for cfg; do
550         cfg="${cfg#!}"
551         enabled ${cfg}_checking && die "Circular dependency for $cfg."
552         disabled ${cfg}_checking && continue
553         enable ${cfg}_checking
554
555         eval dep_all="\$${cfg}_deps"
556         eval dep_any="\$${cfg}_deps_any"
557         eval dep_sel="\$${cfg}_select"
558         eval dep_sgs="\$${cfg}_suggest"
559         eval dep_ifa="\$${cfg}_if"
560         eval dep_ifn="\$${cfg}_if_any"
561
562         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
563         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
564         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
565
566         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
567         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
568         enabled_all  $dep_all || disable $cfg
569         enabled_any  $dep_any || disable $cfg
570         disabled_any $dep_sel && disable $cfg
571
572         if enabled $cfg; then
573             eval dep_extralibs="\$${cfg}_extralibs"
574             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
575             enable_deep $dep_sel
576             enable_deep_weak $dep_sgs
577         fi
578
579         disable ${cfg}_checking
580     done
581 }
582
583 print_config_h(){
584     enabled $1 && v=1 || v=0
585     echo "#define $2 $v"
586 }
587
588 print_config_mak(){
589     enabled $1 && v= || v=!
590     echo "$v$2=yes"
591 }
592
593 print_config_asm(){
594     enabled $1 && v=1 || v=0
595     echo "%define $2 $v"
596 }
597
598 print_config(){
599     pfx=$1
600     files=$2
601     shift 2
602     for cfg; do
603         ucname="$(toupper $cfg)"
604         for f in $files; do
605             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
606         done
607     done
608 }
609
610 print_enabled(){
611     test "$1" = -n && end=" " && shift || end="\n"
612     suf=$1
613     shift
614     for v; do
615         enabled $v && printf "%s$end" ${v%$suf};
616     done
617 }
618
619 append(){
620     var=$1
621     shift
622     eval "$var=\"\$$var $*\""
623 }
624
625 prepend(){
626     var=$1
627     shift
628     eval "$var=\"$* \$$var\""
629 }
630
631 add_cppflags(){
632     append CPPFLAGS $($filter_cppflags "$@")
633 }
634
635 add_cflags(){
636     append CFLAGS $($filter_cflags "$@")
637 }
638
639 add_cxxflags(){
640     append CXXFLAGS $($filter_cflags "$@")
641 }
642
643 add_asflags(){
644     append ASFLAGS $($filter_asflags "$@")
645 }
646
647 add_ldflags(){
648     append LDFLAGS "$@"
649 }
650
651 add_extralibs(){
652     prepend extralibs "$@"
653 }
654
655 check_cmd(){
656     log "$@"
657     "$@" >> $logfile 2>&1
658 }
659
660 check_cc(){
661     log check_cc "$@"
662     cat > $TMPC
663     log_file $TMPC
664     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
665 }
666
667 check_cxx(){
668     log check_cxx "$@"
669     cat > $TMPCPP
670     log_file $TMPCPP
671     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
672 }
673
674 check_cpp(){
675     log check_cpp "$@"
676     cat > $TMPC
677     log_file $TMPC
678     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
679 }
680
681 check_as(){
682     log check_as "$@"
683     cat > $TMPC
684     log_file $TMPC
685     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
686 }
687
688 check_asm(){
689     log check_asm "$@"
690     name="$1"
691     code="$2"
692     shift 2
693     disable $name
694     check_as "$@" <<EOF && enable $name
695 void foo(void){ __asm__ volatile($code); }
696 EOF
697 }
698
699 check_yasm(){
700     log check_yasm "$@"
701     echo "$1" > $TMPS
702     log_file $TMPS
703     shift 1
704     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
705 }
706
707 check_ld(){
708     log check_ld "$@"
709     type=$1
710     shift 1
711     flags=''
712     libs=''
713     for f; do
714         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
715     done
716     check_$type $($filter_cflags $flags) || return
717     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
718 }
719
720 check_code(){
721     log check_code "$@"
722     check=$1
723     headers=$2
724     code=$3
725     shift 3
726     {
727         for hdr in $headers; do
728             echo "#include <$hdr>"
729         done
730         echo "int main(void) { $code; return 0; }"
731     } | check_$check "$@"
732 }
733
734 check_cppflags(){
735     log check_cppflags "$@"
736     set -- $($filter_cppflags "$@")
737     check_cc "$@" <<EOF && append CPPFLAGS "$@"
738 int x;
739 EOF
740 }
741
742 check_cflags(){
743     log check_cflags "$@"
744     set -- $($filter_cflags "$@")
745     check_cc "$@" <<EOF && append CFLAGS "$@"
746 int x;
747 EOF
748 }
749
750 check_cxxflags(){
751     log check_cxxflags "$@"
752     set -- $($filter_cflags "$@")
753     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
754 int x;
755 EOF
756 }
757
758 test_ldflags(){
759     log test_ldflags "$@"
760     check_ld "cc" "$@" <<EOF
761 int main(void){ return 0; }
762 EOF
763 }
764
765 check_ldflags(){
766     log check_ldflags "$@"
767     test_ldflags "$@" && add_ldflags "$@"
768 }
769
770 check_header(){
771     log check_header "$@"
772     header=$1
773     shift
774     disable_safe $header
775     check_cpp "$@" <<EOF && enable_safe $header
776 #include <$header>
777 int x;
778 EOF
779 }
780
781 check_func(){
782     log check_func "$@"
783     func=$1
784     shift
785     disable $func
786     check_ld "cc" "$@" <<EOF && enable $func
787 extern int $func();
788 int main(void){ $func(); }
789 EOF
790 }
791
792 check_mathfunc(){
793     log check_mathfunc "$@"
794     func=$1
795     shift
796     disable $func
797     check_ld "cc" "$@" <<EOF && enable $func
798 #include <math.h>
799 float foo(float f) { return $func(f); }
800 int main(void){ return (int) foo; }
801 EOF
802 }
803
804 check_func_headers(){
805     log check_func_headers "$@"
806     headers=$1
807     funcs=$2
808     shift 2
809     {
810         for hdr in $headers; do
811             echo "#include <$hdr>"
812         done
813         for func in $funcs; do
814             echo "long check_$func(void) { return (long) $func; }"
815         done
816         echo "int main(void) { return 0; }"
817     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
818 }
819
820 check_class_headers_cpp(){
821     log check_class_headers_cpp "$@"
822     headers=$1
823     classes=$2
824     shift 2
825     {
826         for hdr in $headers; do
827             echo "#include <$hdr>"
828         done
829         echo "int main(void) { "
830         i=1
831         for class in $classes; do
832             echo "$class obj$i;"
833             i=$(expr $i + 1)
834         done
835         echo "return 0; }"
836     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
837 }
838
839 check_cpp_condition(){
840     log check_cpp_condition "$@"
841     header=$1
842     condition=$2
843     shift 2
844     check_cpp $($filter_cppflags "$@") <<EOF
845 #include <$header>
846 #if !($condition)
847 #error "unsatisfied condition: $condition"
848 #endif
849 EOF
850 }
851
852 check_lib(){
853     log check_lib "$@"
854     header="$1"
855     func="$2"
856     shift 2
857     check_header $header && check_func $func "$@" && add_extralibs "$@"
858 }
859
860 check_lib2(){
861     log check_lib2 "$@"
862     headers="$1"
863     funcs="$2"
864     shift 2
865     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
866 }
867
868 check_lib_cpp(){
869     log check_lib_cpp "$@"
870     headers="$1"
871     classes="$2"
872     shift 2
873     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
874 }
875
876 check_pkg_config(){
877     log check_pkg_config "$@"
878     pkg="$1"
879     headers="$2"
880     funcs="$3"
881     shift 3
882     $pkg_config --exists $pkg 2>/dev/null || return
883     pkg_cflags=$($pkg_config --cflags $pkg)
884     pkg_libs=$($pkg_config --libs $pkg)
885     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
886         set_safe ${pkg}_cflags $pkg_cflags   &&
887         set_safe ${pkg}_libs   $pkg_libs
888 }
889
890 check_exec(){
891     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
892 }
893
894 check_exec_crash(){
895     code=$(cat)
896
897     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
898     # are safe but may not be available everywhere.  Thus we use
899     # raise(SIGTERM) instead.  The check is run in a subshell so we
900     # can redirect the "Terminated" message from the shell.  SIGBUS
901     # is not defined by standard C so it is used conditionally.
902
903     (check_exec "$@") >> $logfile 2>&1 <<EOF
904 #include <signal.h>
905 static void sighandler(int sig){
906     raise(SIGTERM);
907 }
908 int func(void){
909     $code
910 }
911 int (*func_ptr)(void) = func;
912 int main(void){
913     signal(SIGILL, sighandler);
914     signal(SIGFPE, sighandler);
915     signal(SIGSEGV, sighandler);
916 #ifdef SIGBUS
917     signal(SIGBUS, sighandler);
918 #endif
919     return func_ptr();
920 }
921 EOF
922 }
923
924 check_type(){
925     log check_type "$@"
926     headers=$1
927     type=$2
928     shift 2
929     disable_safe "$type"
930     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
931 }
932
933 check_struct(){
934     log check_type "$@"
935     headers=$1
936     struct=$2
937     member=$3
938     shift 3
939     disable_safe "${struct}_${member}"
940     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
941         enable_safe "${struct}_${member}"
942 }
943
944 require(){
945     name="$1"
946     header="$2"
947     func="$3"
948     shift 3
949     check_lib $header $func "$@" || die "ERROR: $name not found"
950 }
951
952 require2(){
953     name="$1"
954     headers="$2"
955     func="$3"
956     shift 3
957     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
958 }
959
960 require_cpp(){
961     name="$1"
962     headers="$2"
963     classes="$3"
964     shift 3
965     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
966 }
967
968 require_pkg_config(){
969     pkg="$1"
970     check_pkg_config "$@" || die "ERROR: $pkg not found"
971     add_cflags    $(get_safe ${pkg}_cflags)
972     add_extralibs $(get_safe ${pkg}_libs)
973 }
974
975 check_host_cc(){
976     log check_host_cc "$@"
977     cat > $TMPC
978     log_file $TMPC
979     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
980 }
981
982 check_host_cflags(){
983     log check_host_cflags "$@"
984     check_host_cc "$@" <<EOF && append host_cflags "$@"
985 int x;
986 EOF
987 }
988
989 apply(){
990     file=$1
991     shift
992     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
993 }
994
995 cp_if_changed(){
996     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
997     mkdir -p "$(dirname $2)"
998     cp -f "$1" "$2"
999 }
1000
1001 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1002 # system-dependent things.
1003
1004 COMPONENT_LIST="
1005     bsfs
1006     decoders
1007     demuxers
1008     encoders
1009     filters
1010     hwaccels
1011     indevs
1012     muxers
1013     outdevs
1014     parsers
1015     protocols
1016 "
1017
1018 PROGRAM_LIST="
1019     ffplay
1020     ffprobe
1021     ffserver
1022     ffmpeg
1023 "
1024
1025 CONFIG_LIST="
1026     $COMPONENT_LIST
1027     $PROGRAM_LIST
1028     ac3dsp
1029     avcodec
1030     avdevice
1031     avfilter
1032     avformat
1033     avresample
1034     avisynth
1035     bzlib
1036     crystalhd
1037     dct
1038     doc
1039     dwt
1040     dxva2
1041     fast_unaligned
1042     fastdiv
1043     fft
1044     fontconfig
1045     frei0r
1046     gnutls
1047     gpl
1048     gray
1049     hardcoded_tables
1050     libaacplus
1051     libass
1052     libbluray
1053     libcdio
1054     libcelt
1055     libdc1394
1056     libfaac
1057     libfdk_aac
1058     libfreetype
1059     libgsm
1060     libiec61883
1061     libilbc
1062     libmodplug
1063     libmp3lame
1064     libnut
1065     libopencore_amrnb
1066     libopencore_amrwb
1067     libopencv
1068     libopenjpeg
1069     libpulse
1070     librtmp
1071     libschroedinger
1072     libspeex
1073     libstagefright_h264
1074     libtheora
1075     libutvideo
1076     libv4l2
1077     libvo_aacenc
1078     libvo_amrwbenc
1079     libvorbis
1080     libvpx
1081     libx264
1082     libxavs
1083     libxvid
1084     lsp
1085     mdct
1086     memalign_hack
1087     memory_poisoning
1088     mpegaudiodsp
1089     network
1090     nonfree
1091     openal
1092     openssl
1093     pic
1094     postproc
1095     rdft
1096     rtpdec
1097     runtime_cpudetect
1098     safe_bitstream_reader
1099     shared
1100     sinewin
1101     small
1102     sram
1103     static
1104     swresample
1105     swscale
1106     swscale_alpha
1107     thumb
1108     vaapi
1109     vda
1110     vdpau
1111     version3
1112     xmm_clobber_test
1113     x11grab
1114     zlib
1115 "
1116
1117 THREADS_LIST='
1118     pthreads
1119     w32threads
1120     os2threads
1121 '
1122
1123 ARCH_LIST='
1124     alpha
1125     arm
1126     avr32
1127     avr32_ap
1128     avr32_uc
1129     bfin
1130     ia64
1131     m68k
1132     mips
1133     mips64
1134     parisc
1135     ppc
1136     ppc64
1137     s390
1138     sh4
1139     sparc
1140     sparc64
1141     tomi
1142     x86
1143     x86_32
1144     x86_64
1145 '
1146
1147 ARCH_EXT_LIST='
1148     altivec
1149     amd3dnow
1150     amd3dnowext
1151     armv5te
1152     armv6
1153     armv6t2
1154     armvfp
1155     avx
1156     mmi
1157     mmx
1158     mmx2
1159     neon
1160     ppc4xx
1161     sse
1162     ssse3
1163     vfpv3
1164     vis
1165     mipsfpu
1166     mips32r2
1167     mipsdspr1
1168     mipsdspr2
1169 '
1170
1171 HAVE_LIST_PUB='
1172     bigendian
1173     fast_unaligned
1174 '
1175
1176 HAVE_LIST="
1177     $ARCH_EXT_LIST
1178     $HAVE_LIST_PUB
1179     $THREADS_LIST
1180     aligned_malloc
1181     aligned_stack
1182     alsa_asoundlib_h
1183     altivec_h
1184     arpa_inet_h
1185     asm_mod_y
1186     asm_types_h
1187     attribute_may_alias
1188     attribute_packed
1189     cbrtf
1190     clock_gettime
1191     closesocket
1192     cmov
1193     cpuid
1194     dcbzl
1195     dev_bktr_ioctl_bt848_h
1196     dev_bktr_ioctl_meteor_h
1197     dev_ic_bt8xx_h
1198     dev_video_bktr_ioctl_bt848_h
1199     dev_video_meteor_ioctl_meteor_h
1200     dlfcn_h
1201     dlopen
1202     dos_paths
1203     dxva_h
1204     ebp_available
1205     ebx_available
1206     exp2
1207     exp2f
1208     fast_64bit
1209     fast_clz
1210     fast_cmov
1211     fcntl
1212     fork
1213     getaddrinfo
1214     gethrtime
1215     getopt
1216     GetProcessAffinityMask
1217     GetProcessMemoryInfo
1218     GetProcessTimes
1219     GetSystemTimeAsFileTime
1220     getrusage
1221     gettimeofday
1222     glob
1223     gnu_as
1224     ibm_asm
1225     inet_aton
1226     inline_asm
1227     isatty
1228     isinf
1229     isnan
1230     jack_port_get_latency_range
1231     kbhit
1232     ldbrx
1233     libdc1394_1
1234     libdc1394_2
1235     llrint
1236     llrintf
1237     local_aligned_16
1238     local_aligned_8
1239     localtime_r
1240     log2
1241     log2f
1242     loongson
1243     lrint
1244     lrintf
1245     lzo1x_999_compress
1246     machine_ioctl_bt848_h
1247     machine_ioctl_meteor_h
1248     makeinfo
1249     malloc_h
1250     MapViewOfFile
1251     memalign
1252     mkstemp
1253     mm_empty
1254     mmap
1255     nanosleep
1256     netinet_sctp_h
1257     PeekNamedPipe
1258     pod2man
1259     poll_h
1260     posix_memalign
1261     pthread_cancel
1262     rdtsc
1263     rint
1264     round
1265     roundf
1266     rweflags
1267     sched_getaffinity
1268     sdl
1269     sdl_video_size
1270     setmode
1271     setrlimit
1272     Sleep
1273     sndio_h
1274     socklen_t
1275     soundcard_h
1276     strerror_r
1277     strptime
1278     struct_addrinfo
1279     struct_group_source_req
1280     struct_ip_mreq_source
1281     struct_ipv6_mreq
1282     struct_pollfd
1283     struct_rusage_ru_maxrss
1284     struct_sockaddr_in6
1285     struct_sockaddr_sa_len
1286     struct_sockaddr_storage
1287     struct_v4l2_frmivalenum_discrete
1288     symver
1289     symver_asm_label
1290     symver_gnu_asm
1291     sysconf
1292     sysctl
1293     sys_mman_h
1294     sys_param_h
1295     sys_resource_h
1296     sys_select_h
1297     sys_soundcard_h
1298     sys_time_h
1299     sys_videoio_h
1300     termios_h
1301     texi2html
1302     threads
1303     trunc
1304     truncf
1305     unistd_h
1306     usleep
1307     vfp_args
1308     VirtualAlloc
1309     windows_h
1310     winsock2_h
1311     xform_asm
1312     xgetbv
1313     xmm_clobbers
1314     yasm
1315 "
1316
1317 # options emitted with CONFIG_ prefix but not available on command line
1318 CONFIG_EXTRA="
1319     aandct
1320     avutil
1321     golomb
1322     gplv3
1323     h264chroma
1324     h264dsp
1325     h264pred
1326     h264qpel
1327     huffman
1328     lgplv3
1329     lpc
1330 "
1331
1332 CMDLINE_SELECT="
1333     $ARCH_EXT_LIST
1334     $CONFIG_LIST
1335     $THREADS_LIST
1336     asm
1337     coverage
1338     cross_compile
1339     debug
1340     extra_warnings
1341     logging
1342     optimizations
1343     stripping
1344     symver
1345     yasm
1346 "
1347
1348 PATHS_LIST='
1349     bindir
1350     datadir
1351     incdir
1352     libdir
1353     mandir
1354     prefix
1355     shlibdir
1356 '
1357
1358 CMDLINE_SET="
1359     $PATHS_LIST
1360     ar
1361     arch
1362     as
1363     assert_level
1364     build_suffix
1365     cc
1366     cpu
1367     cross_prefix
1368     cxx
1369     dep_cc
1370     extra_version
1371     host_cc
1372     host_cflags
1373     host_ldflags
1374     host_libs
1375     host_os
1376     install
1377     ld
1378     logfile
1379     malloc_prefix
1380     nm
1381     optflags
1382     pkg_config
1383     postproc_version
1384     progs_suffix
1385     random_seed
1386     samples
1387     strip
1388     sysinclude
1389     sysroot
1390     target_exec
1391     target_os
1392     target_path
1393     valgrind
1394     yasmexe
1395 "
1396
1397 CMDLINE_APPEND="
1398     extra_cflags
1399     extra_cxxflags
1400 "
1401
1402 # code dependency declarations
1403
1404 # architecture extensions
1405
1406 armv5te_deps="arm"
1407 armv6_deps="arm"
1408 armv6t2_deps="arm"
1409 armvfp_deps="arm"
1410 neon_deps="arm"
1411 vfpv3_deps="armvfp"
1412
1413 mipsfpu_deps="mips"
1414 mips32r2_deps="mips"
1415 mipsdspr1_deps="mips"
1416 mipsdspr2_deps="mips"
1417 mmi_deps="mips"
1418
1419 altivec_deps="ppc"
1420 ppc4xx_deps="ppc"
1421
1422 vis_deps="sparc"
1423
1424 x86_64_suggest="cmov fast_cmov"
1425 amd3dnow_deps="mmx"
1426 amd3dnowext_deps="amd3dnow"
1427 mmx_deps="x86"
1428 mmx2_deps="mmx"
1429 sse_deps="mmx"
1430 ssse3_deps="sse"
1431 avx_deps="ssse3"
1432
1433 aligned_stack_if_any="ppc x86"
1434 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1435 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1436 fast_unaligned_if_any="armv6 ppc x86"
1437
1438 inline_asm_deps="!tms470"
1439 need_memalign="altivec neon sse"
1440
1441 symver_if_any="symver_asm_label symver_gnu_asm"
1442
1443 # subsystems
1444 dct_select="rdft"
1445 mdct_select="fft"
1446 rdft_select="fft"
1447 mpegaudiodsp_select="dct"
1448
1449 # decoders / encoders / hardware accelerators
1450 aac_decoder_select="mdct sinewin"
1451 aac_encoder_select="mdct sinewin"
1452 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1453 ac3_decoder_select="mdct ac3dsp ac3_parser"
1454 ac3_encoder_select="mdct ac3dsp"
1455 ac3_fixed_encoder_select="mdct ac3dsp"
1456 alac_encoder_select="lpc"
1457 amrnb_decoder_select="lsp"
1458 amrwb_decoder_select="lsp"
1459 amv_encoder_select="aandct"
1460 atrac1_decoder_select="mdct sinewin"
1461 atrac3_decoder_select="mdct"
1462 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1463 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1464 cavs_decoder_select="golomb"
1465 cook_decoder_select="mdct sinewin"
1466 cscd_decoder_suggest="zlib"
1467 dca_decoder_select="mdct"
1468 dirac_decoder_select="dwt golomb"
1469 dnxhd_encoder_select="aandct"
1470 dxa_decoder_select="zlib"
1471 eac3_decoder_select="ac3_decoder"
1472 eac3_encoder_select="mdct ac3dsp"
1473 eamad_decoder_select="aandct"
1474 eatgq_decoder_select="aandct"
1475 eatqi_decoder_select="aandct"
1476 exr_decoder_select="zlib"
1477 ffv1_decoder_select="golomb"
1478 flac_decoder_select="golomb"
1479 flac_encoder_select="golomb lpc"
1480 flashsv_decoder_select="zlib"
1481 flashsv_encoder_select="zlib"
1482 flashsv2_encoder_select="zlib"
1483 flashsv2_decoder_select="zlib"
1484 flv_decoder_select="h263_decoder"
1485 flv_encoder_select="h263_encoder"
1486 fraps_decoder_select="huffman"
1487 h261_encoder_select="aandct"
1488 h263_decoder_select="h263_parser"
1489 h263_encoder_select="aandct"
1490 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1491 h263i_decoder_select="h263_decoder"
1492 h263p_encoder_select="h263_encoder"
1493 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1494 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1495 h264_dxva2_hwaccel_deps="dxva2api_h"
1496 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1497 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1498 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1499 h264_vda_hwaccel_select="vda h264_decoder"
1500 h264_vdpau_decoder_select="vdpau h264_decoder"
1501 iac_decoder_select="fft mdct sinewin"
1502 imc_decoder_select="fft mdct sinewin"
1503 jpegls_decoder_select="golomb"
1504 jpegls_encoder_select="golomb"
1505 ljpeg_encoder_select="aandct"
1506 loco_decoder_select="golomb"
1507 mjpeg_encoder_select="aandct"
1508 mlp_decoder_select="mlp_parser"
1509 mp1_decoder_select="mpegaudiodsp"
1510 mp1float_decoder_select="mpegaudiodsp"
1511 mp2_decoder_select="mpegaudiodsp"
1512 mp2float_decoder_select="mpegaudiodsp"
1513 mp3_decoder_select="mpegaudiodsp"
1514 mp3adu_decoder_select="mpegaudiodsp"
1515 mp3adufloat_decoder_select="mpegaudiodsp"
1516 mp3float_decoder_select="mpegaudiodsp"
1517 mp3on4_decoder_select="mpegaudiodsp"
1518 mp3on4float_decoder_select="mpegaudiodsp"
1519 mpc7_decoder_select="mpegaudiodsp"
1520 mpc8_decoder_select="mpegaudiodsp"
1521 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1522 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1523 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1524 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1525 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1526 mpeg1video_encoder_select="aandct"
1527 mpeg2_crystalhd_decoder_select="crystalhd"
1528 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1529 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1530 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1531 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1532 mpeg2video_encoder_select="aandct"
1533 mpeg4_crystalhd_decoder_select="crystalhd"
1534 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1535 mpeg4_encoder_select="h263_encoder"
1536 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1537 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1538 msmpeg4_crystalhd_decoder_select="crystalhd"
1539 msmpeg4v1_decoder_select="h263_decoder"
1540 msmpeg4v1_encoder_select="h263_encoder"
1541 msmpeg4v2_decoder_select="h263_decoder"
1542 msmpeg4v2_encoder_select="h263_encoder"
1543 msmpeg4v3_decoder_select="h263_decoder"
1544 msmpeg4v3_encoder_select="h263_encoder"
1545 nellymoser_decoder_select="mdct sinewin"
1546 nellymoser_encoder_select="mdct sinewin"
1547 png_decoder_select="zlib"
1548 png_encoder_select="zlib"
1549 qcelp_decoder_select="lsp"
1550 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1551 ra_144_encoder_select="lpc"
1552 ralf_decoder_select="golomb"
1553 rv10_decoder_select="h263_decoder"
1554 rv10_encoder_select="h263_encoder"
1555 rv20_decoder_select="h263_decoder"
1556 rv20_encoder_select="h263_encoder"
1557 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1558 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1559 shorten_decoder_select="golomb"
1560 sipr_decoder_select="lsp"
1561 snow_decoder_select="dwt"
1562 snow_encoder_select="aandct dwt"
1563 sonic_decoder_select="golomb"
1564 sonic_encoder_select="golomb"
1565 sonic_ls_encoder_select="golomb"
1566 svq1_encoder_select="aandct"
1567 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1568 svq3_decoder_suggest="zlib"
1569 theora_decoder_select="vp3_decoder"
1570 tiff_decoder_suggest="zlib"
1571 tiff_encoder_suggest="zlib"
1572 tscc_decoder_select="zlib"
1573 twinvq_decoder_select="mdct lsp sinewin"
1574 vc1_crystalhd_decoder_select="crystalhd"
1575 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1576 vc1_dxva2_hwaccel_deps="dxva2api_h"
1577 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1578 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1579 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1580 vc1image_decoder_select="vc1_decoder"
1581 vorbis_decoder_select="mdct"
1582 vorbis_encoder_select="mdct"
1583 vp6_decoder_select="huffman"
1584 vp6a_decoder_select="vp6_decoder"
1585 vp6f_decoder_select="vp6_decoder"
1586 vp8_decoder_select="h264pred h264qpel"
1587 wmapro_decoder_select="mdct sinewin"
1588 wmav1_decoder_select="mdct sinewin"
1589 wmav1_encoder_select="mdct sinewin"
1590 wmav2_decoder_select="mdct sinewin"
1591 wmav2_encoder_select="mdct sinewin"
1592 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1593 wmv1_decoder_select="h263_decoder"
1594 wmv1_encoder_select="h263_encoder"
1595 wmv2_decoder_select="h263_decoder"
1596 wmv2_encoder_select="h263_encoder"
1597 wmv3_decoder_select="vc1_decoder"
1598 wmv3_crystalhd_decoder_select="crystalhd"
1599 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1600 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1601 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1602 wmv3image_decoder_select="wmv3_decoder"
1603 zerocodec_decoder_select="zlib"
1604 zlib_decoder_select="zlib"
1605 zlib_encoder_select="zlib"
1606 zmbv_decoder_select="zlib"
1607 zmbv_encoder_select="zlib"
1608
1609 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1610 vaapi_deps="va_va_h"
1611 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1612 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1613
1614 # parsers
1615 h264_parser_select="golomb h264dsp h264pred"
1616
1617 # external libraries
1618 libaacplus_encoder_deps="libaacplus"
1619 libcelt_decoder_deps="libcelt"
1620 libfaac_encoder_deps="libfaac"
1621 libfdk_aac_encoder_deps="libfdk_aac"
1622 libgsm_decoder_deps="libgsm"
1623 libgsm_encoder_deps="libgsm"
1624 libgsm_ms_decoder_deps="libgsm"
1625 libgsm_ms_encoder_deps="libgsm"
1626 libilbc_decoder_deps="libilbc"
1627 libilbc_encoder_deps="libilbc"
1628 libmodplug_demuxer_deps="libmodplug"
1629 libmp3lame_encoder_deps="libmp3lame"
1630 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1631 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1632 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1633 libopenjpeg_decoder_deps="libopenjpeg"
1634 libopenjpeg_encoder_deps="libopenjpeg"
1635 libschroedinger_decoder_deps="libschroedinger"
1636 libschroedinger_encoder_deps="libschroedinger"
1637 libspeex_decoder_deps="libspeex"
1638 libspeex_encoder_deps="libspeex"
1639 libstagefright_h264_decoder_deps="libstagefright_h264"
1640 libtheora_encoder_deps="libtheora"
1641 libvo_aacenc_encoder_deps="libvo_aacenc"
1642 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1643 libvorbis_decoder_deps="libvorbis"
1644 libvorbis_encoder_deps="libvorbis"
1645 libvpx_decoder_deps="libvpx"
1646 libvpx_encoder_deps="libvpx"
1647 libx264_encoder_deps="libx264"
1648 libx264rgb_encoder_deps="libx264"
1649 libxavs_encoder_deps="libxavs"
1650 libxvid_encoder_deps="libxvid"
1651 libutvideo_decoder_deps="libutvideo"
1652 libutvideo_encoder_deps="libutvideo"
1653
1654 # demuxers / muxers
1655 ac3_demuxer_select="ac3_parser"
1656 asf_stream_muxer_select="asf_muxer"
1657 avisynth_demuxer_deps="avisynth"
1658 dirac_demuxer_select="dirac_parser"
1659 eac3_demuxer_select="ac3_parser"
1660 flac_demuxer_select="flac_parser"
1661 ipod_muxer_select="mov_muxer"
1662 libnut_demuxer_deps="libnut"
1663 libnut_muxer_deps="libnut"
1664 matroska_audio_muxer_select="matroska_muxer"
1665 matroska_demuxer_suggest="zlib bzlib"
1666 mov_demuxer_suggest="zlib"
1667 mp3_demuxer_select="mpegaudio_parser"
1668 mp4_muxer_select="mov_muxer"
1669 mpegts_muxer_select="adts_muxer latm_muxer"
1670 mpegtsraw_demuxer_select="mpegts_demuxer"
1671 mxf_d10_muxer_select="mxf_muxer"
1672 ogg_demuxer_select="golomb"
1673 psp_muxer_select="mov_muxer"
1674 rtp_demuxer_select="sdp_demuxer"
1675 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1676 rtsp_demuxer_select="http_protocol rtpdec"
1677 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1678 sap_demuxer_select="sdp_demuxer"
1679 sap_muxer_select="rtp_muxer rtp_protocol"
1680 sdp_demuxer_select="rtpdec"
1681 spdif_muxer_select="aac_parser"
1682 tg2_muxer_select="mov_muxer"
1683 tgp_muxer_select="mov_muxer"
1684 w64_demuxer_deps="wav_demuxer"
1685
1686 # indevs / outdevs
1687 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1688 alsa_outdev_deps="alsa_asoundlib_h"
1689 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1690 dshow_indev_deps="IBaseFilter"
1691 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1692 dv1394_indev_deps="dv1394 dv_demuxer"
1693 fbdev_indev_deps="linux_fb_h"
1694 iec61883_indev_deps="libiec61883"
1695 jack_indev_deps="jack_jack_h sem_timedwait"
1696 lavfi_indev_deps="avfilter"
1697 libcdio_indev_deps="libcdio"
1698 libdc1394_indev_deps="libdc1394"
1699 libv4l2_indev_deps="libv4l2"
1700 openal_indev_deps="openal"
1701 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1702 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1703 pulse_indev_deps="libpulse"
1704 sdl_outdev_deps="sdl"
1705 sndio_indev_deps="sndio_h"
1706 sndio_outdev_deps="sndio_h"
1707 v4l_indev_deps="linux_videodev_h"
1708 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1709 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1710 vfwcap_indev_extralibs="-lavicap32"
1711 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1712
1713 # protocols
1714 bluray_protocol_deps="libbluray"
1715 ffrtmphttp_protocol_deps="!librtmp_protocol"
1716 ffrtmphttp_protocol_select="http_protocol"
1717 gopher_protocol_deps="network"
1718 httpproxy_protocol_deps="network"
1719 httpproxy_protocol_select="tcp_protocol"
1720 http_protocol_deps="network"
1721 http_protocol_select="tcp_protocol"
1722 https_protocol_select="tls_protocol"
1723 librtmp_protocol_deps="librtmp"
1724 librtmpe_protocol_deps="librtmp"
1725 librtmps_protocol_deps="librtmp"
1726 librtmpt_protocol_deps="librtmp"
1727 librtmpte_protocol_deps="librtmp"
1728 mmsh_protocol_select="http_protocol"
1729 mmst_protocol_deps="network"
1730 rtmp_protocol_deps="!librtmp_protocol"
1731 rtmp_protocol_select="tcp_protocol"
1732 rtmps_protocol_deps="!librtmp_protocol"
1733 rtmps_protocol_select="tls_protocol"
1734 rtmpt_protocol_deps="!librtmp_protocol"
1735 rtmpt_protocol_select="ffrtmphttp_protocol"
1736 rtmpts_protocol_deps="!librtmp_protocol"
1737 rtmpts_protocol_select="ffrtmphttp_protocol"
1738 rtp_protocol_select="udp_protocol"
1739 sctp_protocol_deps="network netinet_sctp_h"
1740 tcp_protocol_deps="network"
1741 tls_protocol_deps_any="openssl gnutls"
1742 tls_protocol_select="tcp_protocol"
1743 udp_protocol_deps="network"
1744
1745 # filters
1746 aconvert_filter_deps="swresample"
1747 amovie_filter_deps="avcodec avformat"
1748 aresample_filter_deps="swresample"
1749 ass_filter_deps="libass"
1750 asyncts_filter_deps="avresample"
1751 atempo_filter_deps="avcodec rdft"
1752 blackframe_filter_deps="gpl"
1753 boxblur_filter_deps="gpl"
1754 colormatrix_filter_deps="gpl"
1755 cropdetect_filter_deps="gpl"
1756 delogo_filter_deps="gpl"
1757 deshake_filter_deps="avcodec"
1758 drawtext_filter_deps="libfreetype"
1759 frei0r_filter_deps="frei0r dlopen"
1760 frei0r_filter_extralibs='$ldl'
1761 frei0r_src_filter_deps="frei0r dlopen"
1762 frei0r_src_filter_extralibs='$ldl'
1763 hqdn3d_filter_deps="gpl"
1764 movie_filter_deps="avcodec avformat"
1765 mp_filter_deps="gpl avcodec swscale postproc"
1766 mptestsrc_filter_deps="gpl"
1767 negate_filter_deps="lut_filter"
1768 resample_filter_deps="avresample"
1769 ocv_filter_deps="libopencv"
1770 pan_filter_deps="swresample"
1771 removelogo_filter_deps="avcodec avformat swscale"
1772 scale_filter_deps="swscale"
1773 select_filter_deps="avcodec"
1774 super2xsai_filter_deps="gpl"
1775 tinterlace_filter_deps="gpl"
1776 yadif_filter_deps="gpl"
1777
1778 # libraries
1779 avdevice_deps="avcodec avformat"
1780 avformat_deps="avcodec"
1781 postproc_deps="gpl"
1782
1783 # programs
1784 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1785 ffmpeg_select="buffersink_filter format_filter aformat_filter
1786                setpts_filter null_filter anull_filter abuffersink_filter"
1787 ffplay_deps="avcodec avformat swscale swresample sdl"
1788 ffplay_select="buffersink_filter rdft"
1789 ffprobe_deps="avcodec avformat"
1790 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1791 ffserver_extralibs='$ldl'
1792
1793 doc_deps_any="texi2html makeinfo pod2man"
1794
1795 # tests
1796
1797 test_deps(){
1798     suf1=$1
1799     suf2=$2
1800     shift 2
1801     for v; do
1802         dep=${v%=*}
1803         tests=${v#*=}
1804         for name in ${tests}; do
1805             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1806         done
1807     done
1808 }
1809
1810 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1811
1812 test_deps _muxer _demuxer                                               \
1813     aiff                                                                \
1814     pcm_alaw=alaw                                                       \
1815     asf                                                                 \
1816     au                                                                  \
1817     avi                                                                 \
1818     dv=dv_fmt                                                           \
1819     ffm                                                                 \
1820     flv=flv_fmt                                                         \
1821     gxf                                                                 \
1822     matroska=mkv                                                        \
1823     mmf                                                                 \
1824     mov="mov ismv"                                                      \
1825     pcm_mulaw=mulaw                                                     \
1826     mxf="mxf mxf_d10"                                                   \
1827     nut                                                                 \
1828     ogg="ogg ogg_vp3"                                                   \
1829     rawvideo=pixfmt                                                     \
1830     rm                                                                  \
1831     swf                                                                 \
1832     mpegts=ts                                                           \
1833     voc                                                                 \
1834     wav                                                                 \
1835     yuv4mpegpipe=yuv4mpeg                                               \
1836
1837 colormatrix1_test_deps="colormatrix_filter"
1838 colormatrix2_test_deps="colormatrix_filter"
1839 flashsv2_test_deps="zlib"
1840 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1841 mpng_test_deps="zlib"
1842 pp_test_deps="mp_filter"
1843 pp2_test_deps="mp_filter"
1844 pp3_test_deps="mp_filter"
1845 pp4_test_deps="mp_filter"
1846 pp5_test_deps="mp_filter"
1847 pp6_test_deps="mp_filter"
1848 zlib_test_deps="zlib"
1849 zmbv_test_deps="zlib"
1850
1851 # default parameters
1852
1853 logfile="config.log"
1854
1855 # installation paths
1856 prefix_default="/usr/local"
1857 bindir_default='${prefix}/bin'
1858 datadir_default='${prefix}/share/ffmpeg'
1859 incdir_default='${prefix}/include'
1860 libdir_default='${prefix}/lib'
1861 mandir_default='${prefix}/share/man'
1862 shlibdir_default="$libdir_default"
1863 postproc_version_default="current"
1864
1865 # toolchain
1866 ar_default="ar"
1867 cc_default="gcc"
1868 cxx_default="g++"
1869 cc_version=\"unknown\"
1870 host_cc_default="gcc"
1871 install="install"
1872 ln_s="ln -sf"
1873 nm_default="nm"
1874 objformat="elf"
1875 pkg_config_default=pkg-config
1876 ranlib="ranlib"
1877 strip_default="strip"
1878 yasmexe_default="yasm"
1879
1880 nm_opts='-g'
1881 nogas=":"
1882
1883 # machine
1884 arch_default=$(uname -m)
1885 cpu="generic"
1886
1887 # OS
1888 target_os_default=$(tolower $(uname -s))
1889 host_os=$target_os_default
1890
1891 # alternative libpostproc version
1892 ALT_PP_VER_MAJOR=51
1893 ALT_PP_VER_MINOR=2
1894 ALT_PP_VER_MICRO=101
1895 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1896
1897 # configurable options
1898 enable $PROGRAM_LIST
1899
1900 enable avcodec
1901 enable avdevice
1902 enable avfilter
1903 enable avformat
1904 enable avutil
1905 enable postproc
1906 enable stripping
1907 enable swresample
1908 enable swscale
1909
1910 enable asm
1911 enable debug
1912 enable doc
1913 enable fastdiv
1914 enable network
1915 enable optimizations
1916 enable safe_bitstream_reader
1917 enable static
1918 enable swscale_alpha
1919
1920 # build settings
1921 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1922 FFSERVERLDFLAGS=-Wl,-E
1923 LIBPREF="lib"
1924 LIBSUF=".a"
1925 FULLNAME='$(NAME)$(BUILDSUF)'
1926 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1927 SLIBPREF="lib"
1928 SLIBSUF=".so"
1929 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1930 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1931 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1932 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1933 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1934 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1935
1936 AS_O='-o $@'
1937 CC_O='-o $@'
1938 CXX_O='-o $@'
1939
1940 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1941 host_libs='-lm'
1942
1943 target_path='$(CURDIR)'
1944
1945 # since the object filename is not given with the -MM flag, the compiler
1946 # is only able to print the basename, and we must add the path ourselves
1947 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1948 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1949
1950 # find source path
1951 if test -f configure; then
1952     source_path=.
1953 else
1954     source_path=$(cd $(dirname "$0"); pwd)
1955     echo "$source_path" | grep -q '[[:blank:]]' &&
1956         die "Out of tree builds are impossible with whitespace in source path."
1957     test -e "$source_path/config.h" &&
1958         die "Out of tree builds are impossible with config.h in source dir."
1959 fi
1960
1961 for v in "$@"; do
1962     r=${v#*=}
1963     l=${v%"$r"}
1964     r=$(sh_quote "$r")
1965     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1966 done
1967
1968 find_things(){
1969     thing=$1
1970     pattern=$2
1971     file=$source_path/$3
1972     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1973 }
1974
1975 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1976 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1977 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1978 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1979 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1980 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1981 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1982 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1983 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1984 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1985 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1986
1987 ALL_COMPONENTS="
1988     $BSF_LIST
1989     $DECODER_LIST
1990     $DEMUXER_LIST
1991     $ENCODER_LIST
1992     $FILTER_LIST
1993     $HWACCEL_LIST
1994     $INDEV_LIST
1995     $MUXER_LIST
1996     $OUTDEV_LIST
1997     $PARSER_LIST
1998     $PROTOCOL_LIST
1999 "
2000
2001 find_tests(){
2002     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2003 }
2004
2005 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2006 LAVF_TESTS=$(find_tests lavf)
2007 LAVFI_TESTS=$(find_tests lavfi)
2008 SEEK_TESTS=$(find_tests seek seek_)
2009
2010 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2011
2012 for n in $COMPONENT_LIST; do
2013     v=$(toupper ${n%s})_LIST
2014     eval enable \$$v
2015     eval ${n}_if_any="\$$v"
2016 done
2017
2018 enable $ARCH_EXT_LIST $ALL_TESTS
2019
2020 die_unknown(){
2021     echo "Unknown option \"$1\"."
2022     echo "See $0 --help for available options."
2023     exit 1
2024 }
2025
2026 show_list() {
2027     suffix=_$1
2028     shift
2029     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2030     exit 0
2031 }
2032
2033 rand_list(){
2034     IFS=', '
2035     set -- $*
2036     unset IFS
2037     for thing; do
2038         comp=${thing%:*}
2039         prob=${thing#$comp}
2040         prob=${prob#:}
2041         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2042         echo "prob ${prob:-0.5}"
2043         printf '%s\n' $comp
2044     done
2045 }
2046
2047 do_random(){
2048     action=$1
2049     shift
2050     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2051     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2052 }
2053
2054 for opt do
2055     optval="${opt#*=}"
2056     case "$opt" in
2057     --extra-ldflags=*) add_ldflags $optval
2058     ;;
2059     --extra-libs=*) add_extralibs $optval
2060     ;;
2061     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2062     ;;
2063     --enable-debug=*) debuglevel="$optval"
2064     ;;
2065     --disable-everything)
2066     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2067     ;;
2068     --enable-random|--disable-random)
2069     action=${opt%%-random}
2070     do_random ${action#--} $COMPONENT_LIST
2071     ;;
2072     --enable-random=*|--disable-random=*)
2073     action=${opt%%-random=*}
2074     do_random ${action#--} $optval
2075     ;;
2076     --enable-*=*|--disable-*=*)
2077     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2078     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2079     eval list=\$$(toupper $thing)_LIST
2080     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2081     $action $(filter "$name" $list)
2082     ;;
2083     --enable-?*|--disable-?*)
2084     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2085     if is_in $option $COMPONENT_LIST; then
2086         test $action = disable && action=unset
2087         eval $action \$$(toupper ${option%s})_LIST
2088     elif is_in $option $CMDLINE_SELECT; then
2089         $action $option
2090     else
2091         die_unknown $opt
2092     fi
2093     ;;
2094     --list-*)
2095         NAME="${opt#--list-}"
2096         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2097         NAME=${NAME%s}
2098         eval show_list $NAME \$$(toupper $NAME)_LIST
2099     ;;
2100     --help|-h) show_help
2101     ;;
2102     *)
2103     optname="${opt%%=*}"
2104     optname="${optname#--}"
2105     optname=$(echo "$optname" | sed 's/-/_/g')
2106     if is_in $optname $CMDLINE_SET; then
2107         eval $optname='$optval'
2108     elif is_in $optname $CMDLINE_APPEND; then
2109         append $optname "$optval"
2110     else
2111          die_unknown $opt
2112     fi
2113     ;;
2114     esac
2115 done
2116
2117 disabled logging && logfile=/dev/null
2118
2119 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2120 set >> $logfile
2121
2122 test -n "$cross_prefix" && enable cross_compile
2123
2124 if enabled cross_compile; then
2125     test -n "$arch" && test -n "$target_os" ||
2126         die "Must specify target arch and OS when cross-compiling"
2127 fi
2128
2129 set_default arch target_os postproc_version
2130
2131 # Check if we should build alternative libpostproc version instead of current
2132 if   test "$postproc_version" = $ALT_PP_VER; then
2133   LIBPOSTPROC_VERSION=$ALT_PP_VER
2134   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2135   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2136   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2137 elif test "$postproc_version" != current; then
2138   die "Invalid argument to --postproc-version. See --help output."
2139 fi
2140
2141 ar_default="${cross_prefix}${ar_default}"
2142 cc_default="${cross_prefix}${cc_default}"
2143 cxx_default="${cross_prefix}${cxx_default}"
2144 nm_default="${cross_prefix}${nm_default}"
2145 pkg_config_default="${cross_prefix}${pkg_config_default}"
2146 ranlib="${cross_prefix}${ranlib}"
2147 strip_default="${cross_prefix}${strip_default}"
2148
2149 sysinclude_default="${sysroot}/usr/include"
2150
2151 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2152 enabled cross_compile || host_cc_default=$cc
2153 set_default host_cc
2154
2155 if ! $pkg_config --version >/dev/null 2>&1; then
2156     warn "$pkg_config not found, library detection may fail."
2157     pkg_config=false
2158 fi
2159
2160 exesuf() {
2161     case $1 in
2162         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2163     esac
2164 }
2165
2166 EXESUF=$(exesuf $target_os)
2167 HOSTEXESUF=$(exesuf $host_os)
2168
2169 # set temporary file name
2170 : ${TMPDIR:=$TEMPDIR}
2171 : ${TMPDIR:=$TMP}
2172 : ${TMPDIR:=/tmp}
2173
2174 if ! check_cmd mktemp -u XXXXXX; then
2175     # simple replacement for missing mktemp
2176     # NOT SAFE FOR GENERAL USE
2177     mktemp(){
2178         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2179     }
2180 fi
2181
2182 tmpfile(){
2183     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2184         (set -C; exec > $tmp) 2>/dev/null ||
2185         die "Unable to create temporary file in $TMPDIR."
2186     append TMPFILES $tmp
2187     eval $1=$tmp
2188 }
2189
2190 trap 'rm -f -- $TMPFILES' EXIT
2191
2192 tmpfile TMPASM .asm
2193 tmpfile TMPC   .c
2194 tmpfile TMPCPP .cpp
2195 tmpfile TMPE   $EXESUF
2196 tmpfile TMPH   .h
2197 tmpfile TMPO   .o
2198 tmpfile TMPS   .S
2199 tmpfile TMPSH  .sh
2200 tmpfile TMPV   .ver
2201
2202 unset -f mktemp
2203
2204 chmod +x $TMPE
2205
2206 # make sure we can execute files in $TMPDIR
2207 cat > $TMPSH 2>> $logfile <<EOF
2208 #! /bin/sh
2209 EOF
2210 chmod +x $TMPSH >> $logfile 2>&1
2211 if ! $TMPSH >> $logfile 2>&1; then
2212     cat <<EOF
2213 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2214 variable to another directory and make sure that it is not mounted noexec.
2215 EOF
2216     die "Sanity test failed."
2217 fi
2218
2219 filter_asflags=echo
2220 filter_cflags=echo
2221 filter_cppflags=echo
2222
2223 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2224     cc_type=llvm_gcc
2225     cc_version=__VERSION__
2226     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2227     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2228     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2229     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2230     speed_cflags='-O3'
2231     size_cflags='-Os'
2232 elif $cc -v 2>&1 | grep -qi ^gcc; then
2233     cc_type=gcc
2234     cc_version=__VERSION__
2235     gcc_version=$($cc --version | head -n1)
2236     gcc_basever=$($cc -dumpversion)
2237     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2238     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2239     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2240     if ! $cc -dumpversion | grep -q '^2\.'; then
2241         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2242         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2243     fi
2244     speed_cflags='-O3'
2245     size_cflags='-Os'
2246 elif $cc --version 2>/dev/null | grep -q Intel; then
2247     cc_type=icc
2248     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2249     cc_ident=$($cc --version | head -n1)
2250     icc_version=$($cc -dumpversion)
2251     CC_DEPFLAGS='-MMD'
2252     AS_DEPFLAGS='-MMD'
2253     speed_cflags='-O3'
2254     size_cflags='-Os'
2255     noopt_cflags='-O1'
2256 elif $cc -v 2>&1 | grep -q xlc; then
2257     cc_type=xlc
2258     cc_version="AV_STRINGIFY(__IBMC__)"
2259     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2260     speed_cflags='-O5'
2261     size_cflags='-O5 -qcompact'
2262 elif $cc -V 2>/dev/null | grep -q Compaq; then
2263     cc_type=ccc
2264     cc_version="AV_STRINGIFY(__DECC_VER)"
2265     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2266     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2267     debuglevel=3
2268     add_ldflags -Wl,-z,now # calls to libots crash without this
2269     speed_cflags='-fast'
2270     size_cflags='-O1'
2271 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2272     test -d "$sysroot" || die "No valid sysroot specified."
2273     cc_type=armcc
2274     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2275     cc_ident=$($cc --vsn | head -n1)
2276     armcc_conf="$PWD/armcc.conf"
2277     $cc --arm_linux_configure                 \
2278         --arm_linux_config_file="$armcc_conf" \
2279         --configure_sysroot="$sysroot"        \
2280         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2281         die "Error creating armcc configuration file."
2282     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2283     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2284     as_default="${cross_prefix}gcc"
2285     CC_DEPFLAGS='-MMD'
2286     AS_DEPFLAGS='-MMD'
2287     speed_cflags='-O3'
2288     size_cflags='-Os'
2289     filter_asflags="filter_out -W${armcc_opt}*"
2290 elif $cc -version 2>/dev/null | grep -q TMS470; then
2291     cc_type=tms470
2292     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2293     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2294     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2295     CC_O='-fr=$(@D)'
2296     as_default="${cross_prefix}gcc"
2297     ld_default="${cross_prefix}gcc"
2298     TMPO=$(basename $TMPC .c).o
2299     append TMPFILES $TMPO
2300     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2301     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2302     AS_DEPFLAGS='-MMD'
2303     speed_cflags='-O3 -mf=5'
2304     size_cflags='-O3 -mf=2'
2305     filter_cflags=tms470_flags
2306     tms470_flags(){
2307         for flag; do
2308             case $flag in
2309                 -march=*|-mcpu=*)
2310                     case "${flag#*=}" in
2311                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2312                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2313                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2314                         armv6*|arm11*)          echo -mv=6   ;;
2315                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2316                                                 echo -mv=5e  ;;
2317                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2318                     esac
2319                     ;;
2320                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2321                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2322                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2323                 -msoft-float)   echo --float_support=vfplib       ;;
2324                 -O[0-3]|-mf=*)  echo $flag                        ;;
2325                 -g)             echo -g -mn                       ;;
2326                 -pds=*)         echo $flag                        ;;
2327             esac
2328         done
2329     }
2330 elif $cc -v 2>&1 | grep -q clang; then
2331     cc_type=clang
2332     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2333         cc_version=__clang_version__ || cc_version=__VERSION__
2334     cc_ident=$($cc --version | head -n1)
2335     CC_DEPFLAGS='-MMD'
2336     AS_DEPFLAGS='-MMD'
2337     speed_cflags='-O3'
2338     size_cflags='-Os'
2339 elif $cc -V 2>&1 | grep -q Sun; then
2340     cc_type=suncc
2341     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2342     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2343     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2344     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2345     add_ldflags -xc99
2346     speed_cflags='-O5'
2347     size_cflags='-O5 -xspace'
2348     filter_cflags=suncc_flags
2349     suncc_flags(){
2350         for flag; do
2351             case $flag in
2352                 -march=*|-mcpu=*)
2353                     case "${flag#*=}" in
2354                         native)                   echo -xtarget=native       ;;
2355                         v9|niagara)               echo -xarch=sparc          ;;
2356                         ultrasparc)               echo -xarch=sparcvis       ;;
2357                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2358                         i586|pentium)             echo -xchip=pentium        ;;
2359                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2360                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2361                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2362                         pentium4*)          echo -xtarget=pentium4           ;;
2363                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2364                         *-sse3)             echo -xarch=sse3                 ;;
2365                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2366                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2367                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2368                         k8|opteron|athlon64|athlon-fx)
2369                                                   echo -xarch=sse2a          ;;
2370                         athlon*)                  echo -xarch=pentium_proa   ;;
2371                     esac
2372                     ;;
2373                 -std=c99)             echo -xc99              ;;
2374                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2375                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2376                 -W*,*)                echo $flag              ;;
2377                 -f*-*|-W*)                                    ;;
2378                 *)                    echo $flag              ;;
2379             esac
2380         done
2381     }
2382 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2383     cc_type=pathscale
2384     cc_version=__PATHSCALE__
2385     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2386     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2387     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2388     speed_cflags='-O2'
2389     size_cflags='-Os'
2390     filter_cflags='filter_out -Wdisabled-optimization'
2391 elif $cc -v 2>&1 | grep -q Open64; then
2392     cc_type=open64
2393     cc_version=__OPEN64__
2394     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2395     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2396     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2397     speed_cflags='-O2'
2398     size_cflags='-Os'
2399     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2400 elif $cc -V 2>&1 | grep -q Portland; then
2401     cc_type=pgi
2402     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2403     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2404     opt_common='-alias=ansi -Mlre -Mpre'
2405     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2406     size_cflags="-O2 -Munroll=c:1 $opt_common"
2407     noopt_cflags="-O1"
2408     filter_cflags=pgi_flags
2409     pgi_flags(){
2410         for flag; do
2411             case $flag in
2412                 -fomit-frame-pointer) echo -Mnoframe ;;
2413                 -g)                   echo -gopt ;;
2414                 *)                    echo $flag ;;
2415             esac
2416         done
2417     }
2418 fi
2419
2420 test -n "$cc_type" && enable $cc_type ||
2421     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2422
2423 : ${as_default:=$cc}
2424 : ${dep_cc_default:=$cc}
2425 : ${ld_default:=$cc}
2426 set_default ar as dep_cc ld
2427
2428 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2429 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2430 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2431
2432 add_cflags $extra_cflags
2433 add_cxxflags $extra_cxxflags
2434 add_asflags $extra_cflags
2435
2436 if test -n "$sysroot"; then
2437     case "$cc_type" in
2438         gcc|llvm_gcc|clang)
2439             add_cppflags --sysroot="$sysroot"
2440             add_ldflags --sysroot="$sysroot"
2441         ;;
2442         tms470)
2443             add_cppflags -I"$sysinclude"
2444             add_ldflags  --sysroot="$sysroot"
2445         ;;
2446     esac
2447 fi
2448
2449 if test "$cpu" = host; then
2450     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2451
2452     case "$cc_type" in
2453         gcc|llvm_gcc)
2454             check_native(){
2455                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2456                 sed -n "/cc1.*$1=/{
2457                             s/.*$1=\\([^ ]*\\).*/\\1/
2458                             p
2459                             q
2460                         }" $TMPE
2461             }
2462             cpu=$(check_native -march || check_native -mcpu)
2463         ;;
2464     esac
2465
2466     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2467 fi
2468
2469 # Deal with common $arch aliases
2470 case "$arch" in
2471     arm*|iPad*)
2472         arch="arm"
2473     ;;
2474     mips|mipsel|IP*)
2475         arch="mips"
2476     ;;
2477     mips64*)
2478         arch="mips"
2479         subarch="mips64"
2480     ;;
2481     parisc|hppa)
2482         arch="parisc"
2483     ;;
2484     parisc64|hppa64)
2485         arch="parisc"
2486         subarch="parisc64"
2487     ;;
2488     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2489         arch="ppc"
2490     ;;
2491     s390|s390x)
2492         arch="s390"
2493     ;;
2494     sh4|sh)
2495         arch="sh4"
2496     ;;
2497     sun4u|sparc64)
2498         arch="sparc"
2499         subarch="sparc64"
2500     ;;
2501     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2502         arch="x86"
2503     ;;
2504 esac
2505
2506 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2507 enable $arch
2508
2509 # Add processor-specific flags
2510 if test "$cpu" = generic; then
2511     : do nothing
2512 elif enabled ppc; then
2513
2514     case $(tolower $cpu) in
2515         601|ppc601|powerpc601)
2516             cpuflags="-mcpu=601"
2517             disable altivec
2518         ;;
2519         603*|ppc603*|powerpc603*)
2520             cpuflags="-mcpu=603"
2521             disable altivec
2522         ;;
2523         604*|ppc604*|powerpc604*)
2524             cpuflags="-mcpu=604"
2525             disable altivec
2526         ;;
2527         g3|75*|ppc75*|powerpc75*)
2528             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2529             disable altivec
2530         ;;
2531         g4|745*|ppc745*|powerpc745*)
2532             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2533         ;;
2534         74*|ppc74*|powerpc74*)
2535             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2536         ;;
2537         g5|970|ppc970|powerpc970)
2538             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2539         ;;
2540         power[3-7]*)
2541             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2542         ;;
2543         cell)
2544             cpuflags="-mcpu=cell"
2545             enable ldbrx
2546         ;;
2547         e500v2)
2548             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2549             disable altivec
2550         ;;
2551         e500)
2552             cpuflags="-mcpu=8540 -mhard-float"
2553             disable altivec
2554         ;;
2555     esac
2556
2557 elif enabled x86; then
2558
2559     case $cpu in
2560         i[345]86|pentium)
2561             cpuflags="-march=$cpu"
2562             disable mmx
2563         ;;
2564         # targets that do NOT support conditional mov (cmov)
2565         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2566             cpuflags="-march=$cpu"
2567             disable cmov
2568         ;;
2569         # targets that do support conditional mov (cmov)
2570         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2571             cpuflags="-march=$cpu"
2572             enable cmov
2573             enable fast_cmov
2574         ;;
2575         # targets that do support conditional mov but on which it's slow
2576         pentium4|pentium4m|prescott|nocona)
2577             cpuflags="-march=$cpu"
2578             enable cmov
2579             disable fast_cmov
2580         ;;
2581     esac
2582
2583 elif enabled sparc; then
2584
2585     case $cpu in
2586         niagara)
2587             cpuflags="-mcpu=$cpu"
2588             disable vis
2589         ;;
2590         sparc64)
2591             cpuflags="-mcpu=v9"
2592         ;;
2593     esac
2594
2595 elif enabled arm; then
2596
2597     case $cpu in
2598         armv*)
2599             cpuflags="-march=$cpu"
2600             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2601         ;;
2602         *)
2603             cpuflags="-mcpu=$cpu"
2604             case $cpu in
2605                 cortex-a*)                               subarch=armv7a  ;;
2606                 cortex-r*)                               subarch=armv7r  ;;
2607                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2608                 arm11*)                                  subarch=armv6   ;;
2609                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2610                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2611             esac
2612         ;;
2613     esac
2614
2615 elif enabled alpha; then
2616
2617     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2618
2619 elif enabled bfin; then
2620
2621     cpuflags="-mcpu=$cpu"
2622
2623 elif enabled mips; then
2624
2625     cpuflags="-march=$cpu"
2626
2627     case $cpu in
2628         24kc)
2629             disable mipsfpu
2630             disable mipsdspr1
2631             disable mipsdspr2
2632         ;;
2633         24kf*)
2634             disable mipsdspr1
2635             disable mipsdspr2
2636         ;;
2637         24kec|34kc|1004kc)
2638             disable mipsfpu
2639             disable mipsdspr2
2640         ;;
2641         24kef*|34kf*|1004kf*)
2642             disable mipsdspr2
2643         ;;
2644         74kc)
2645             disable mipsfpu
2646         ;;
2647     esac
2648
2649 elif enabled avr32; then
2650
2651     case $cpu in
2652         ap7[02]0[0-2])
2653             subarch="avr32_ap"
2654             cpuflags="-mpart=$cpu"
2655         ;;
2656         ap)
2657             subarch="avr32_ap"
2658             cpuflags="-march=$cpu"
2659         ;;
2660         uc3[ab]*)
2661             subarch="avr32_uc"
2662             cpuflags="-mcpu=$cpu"
2663         ;;
2664         uc)
2665             subarch="avr32_uc"
2666             cpuflags="-march=$cpu"
2667         ;;
2668     esac
2669
2670 fi
2671
2672 add_cflags $cpuflags
2673 add_asflags $cpuflags
2674
2675 # compiler sanity check
2676 check_exec <<EOF
2677 int main(void){ return 0; }
2678 EOF
2679 if test "$?" != 0; then
2680     echo "$cc is unable to create an executable file."
2681     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2682         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2683         echo "Only do this if you know what cross compiling means."
2684     fi
2685     die "C compiler test failed."
2686 fi
2687
2688 add_cppflags -D_ISOC99_SOURCE
2689 add_cxxflags -D__STDC_CONSTANT_MACROS
2690 check_cflags -std=c99
2691 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2692 #include <stdlib.h>
2693 EOF
2694 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2695 #include <stdlib.h>
2696 EOF
2697
2698 check_host_cflags -std=c99
2699 check_host_cflags -Wall
2700
2701 case "$arch" in
2702     alpha|ia64|mips|parisc|sparc)
2703         spic=$shared
2704     ;;
2705     x86)
2706         subarch="x86_32"
2707         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2708         if test "$subarch" = "x86_64"; then
2709             spic=$shared
2710         fi
2711     ;;
2712     ppc)
2713         check_cc <<EOF && subarch="ppc64"
2714         int test[(int)sizeof(char*) - 7];
2715 EOF
2716     ;;
2717 esac
2718
2719 enable $subarch
2720 enabled spic && enable pic
2721
2722 # OS specific
2723 case $target_os in
2724     haiku)
2725         prefix_default="/boot/common"
2726         network_extralibs="-lnetwork"
2727         host_libs=
2728         ;;
2729     sunos)
2730         FFSERVERLDFLAGS=""
2731         SHFLAGS='-shared -Wl,-h,$$(@F)'
2732         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2733         network_extralibs="-lsocket -lnsl"
2734         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2735         # When using suncc to build, the Solaris linker will mark
2736         # an executable with each instruction set encountered by
2737         # the Solaris assembler.  As our libraries contain their own
2738         # guards for processor-specific code, instead suppress
2739         # generation of the HWCAPS ELF section on Solaris x86 only.
2740         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2741         nm_opts='-P -g'
2742         ;;
2743     netbsd)
2744         disable symver
2745         oss_indev_extralibs="-lossaudio"
2746         oss_outdev_extralibs="-lossaudio"
2747         ;;
2748     openbsd|bitrig)
2749         # On OpenBSD 4.5. the compiler does not use PIC unless
2750         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2751         # however the generated executable will not do anything
2752         # (simply quits with exit-code 1, no crash, no output).
2753         # Thus explicitly enable PIC here.
2754         enable pic
2755         disable symver
2756         SHFLAGS='-shared'
2757         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2758         oss_indev_extralibs="-lossaudio"
2759         oss_outdev_extralibs="-lossaudio"
2760         ;;
2761     dragonfly)
2762         disable symver
2763         ;;
2764     freebsd)
2765         ;;
2766     bsd/os)
2767         add_extralibs -lpoll -lgnugetopt
2768         strip="strip -d"
2769         ;;
2770     darwin)
2771         gas="gas-preprocessor.pl $cc"
2772         enabled ppc && add_asflags -force_cpusubtype_ALL
2773         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2774         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2775         strip="${strip} -x"
2776         add_ldflags -Wl,-dynamic,-search_paths_first
2777         SLIBSUF=".dylib"
2778         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2779         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2780         FFSERVERLDFLAGS=-Wl,-bind_at_load
2781         objformat="macho"
2782         enabled x86_64 && objformat="macho64"
2783         enabled_any pic shared ||
2784             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2785         ;;
2786     mingw32*)
2787         if test $target_os = "mingw32ce"; then
2788             disable network
2789         else
2790             target_os=mingw32
2791         fi
2792         LIBTARGET=i386
2793         if enabled x86_64; then
2794             LIBTARGET=x64
2795         elif enabled arm; then
2796             LIBTARGET=arm-wince
2797         fi
2798         shlibdir_default="$bindir_default"
2799         SLIBPREF=""
2800         SLIBSUF=".dll"
2801         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2802         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2803         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2804         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2805         SLIB_INSTALL_LINKS=
2806         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2807         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2808         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'
2809         objformat="win32"
2810         enable dos_paths
2811         check_cflags -fno-common
2812         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2813                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2814                 die "ERROR: MinGW runtime version must be >= 3.15."
2815         add_cppflags -U__STRICT_ANSI__
2816         ;;
2817     cygwin*)
2818         target_os=cygwin
2819         shlibdir_default="$bindir_default"
2820         SLIBPREF="cyg"
2821         SLIBSUF=".dll"
2822         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2823         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2824         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2825         objformat="win32"
2826         enable dos_paths
2827         check_cflags -fno-common
2828         add_cppflags -U__STRICT_ANSI__
2829         ;;
2830     *-dos|freedos|opendos)
2831         network_extralibs="-lsocket"
2832         objformat="coff"
2833         enable dos_paths
2834         add_cppflags -U__STRICT_ANSI__
2835         ;;
2836     linux)
2837         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2838         enable dv1394
2839         ;;
2840     irix*)
2841         target_os=irix
2842         ranlib="echo ignoring ranlib"
2843         ;;
2844     os/2*)
2845         strip="lxlite -CS"
2846         ln_s="cp -f"
2847         objformat="aout"
2848         add_cppflags -D_GNU_SOURCE
2849         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2850         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2851         FFSERVERLDFLAGS=""
2852         LIBSUF="_s.a"
2853         SLIBPREF=""
2854         SLIBSUF=".dll"
2855         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2856         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2857         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2858           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2859           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2860           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2861           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2862           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2863         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2864           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2865         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2866         enable dos_paths
2867         enable_weak os2threads
2868         ;;
2869     gnu/kfreebsd)
2870         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2871         ;;
2872     gnu)
2873         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2874         ;;
2875     qnx)
2876         add_cppflags -D_QNX_SOURCE
2877         network_extralibs="-lsocket"
2878         ;;
2879     symbian)
2880         SLIBSUF=".dll"
2881         enable dos_paths
2882         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2883         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2884         add_ldflags -Wl,--target1-abs,--no-undefined \
2885                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2886                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2887         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2888                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2889                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2890         ;;
2891     none)
2892         ;;
2893     *)
2894         die "Unknown OS '$target_os'."
2895         ;;
2896 esac
2897
2898 esc(){
2899     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2900 }
2901
2902 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2903
2904 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2905
2906 set_default $PATHS_LIST
2907
2908 # we need to build at least one lib type
2909 if ! enabled_any static shared; then
2910     cat <<EOF
2911 At least one library type must be built.
2912 Specify --enable-static to build the static libraries or --enable-shared to
2913 build the shared libraries as well. To only build the shared libraries specify
2914 --disable-static in addition to --enable-shared.
2915 EOF
2916     exit 1;
2917 fi
2918
2919 die_license_disabled() {
2920     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2921 }
2922
2923 die_license_disabled_gpl() {
2924     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2925 }
2926
2927 die_license_disabled gpl libcdio
2928 die_license_disabled gpl libutvideo
2929 die_license_disabled gpl libx264
2930 die_license_disabled gpl libxavs
2931 die_license_disabled gpl libxvid
2932 die_license_disabled gpl x11grab
2933
2934 die_license_disabled nonfree libaacplus
2935 die_license_disabled nonfree libfaac
2936 enabled gpl && die_license_disabled_gpl nonfree openssl
2937 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
2938
2939 die_license_disabled version3 libopencore_amrnb
2940 die_license_disabled version3 libopencore_amrwb
2941 die_license_disabled version3 libvo_aacenc
2942 die_license_disabled version3 libvo_amrwbenc
2943
2944 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2945
2946 disabled optimizations || check_cflags -fomit-frame-pointer
2947
2948 enable_pic() {
2949     enable pic
2950     add_cppflags -DPIC
2951     add_cflags   -fPIC
2952     add_asflags  -fPIC
2953 }
2954
2955 enabled pic && enable_pic
2956
2957 check_cc <<EOF || die "Symbol mangling check failed."
2958 int ff_extern;
2959 EOF
2960 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2961 extern_prefix=${sym%%ff_extern*}
2962
2963 check_cc <<EOF && enable inline_asm
2964 void foo(void) { __asm__ volatile ("" ::); }
2965 EOF
2966
2967 _restrict=
2968 for restrict_keyword in restrict __restrict__ __restrict; do
2969     check_cc <<EOF && _restrict=$restrict_keyword && break
2970 void foo(char * $restrict_keyword p);
2971 EOF
2972 done
2973
2974 check_cc <<EOF && enable attribute_packed
2975 struct { int x; } __attribute__((packed)) x;
2976 EOF
2977
2978 check_cc <<EOF && enable attribute_may_alias
2979 union { int x; } __attribute__((may_alias)) x;
2980 EOF
2981
2982 check_cc <<EOF || die "endian test failed"
2983 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2984 EOF
2985 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2986
2987 if enabled alpha; then
2988
2989     check_cflags -mieee
2990
2991 elif enabled arm; then
2992
2993     enabled thumb && check_cflags -mthumb || check_cflags -marm
2994     nogas=die
2995
2996     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2997         enable vfp_args
2998     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2999         case "${cross_prefix:-$cc}" in
3000             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3001             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3002 __asm__ (".eabi_attribute 28, 1");
3003 int main(void) { return 0; }
3004 EOF
3005         esac
3006         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3007     fi
3008
3009     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
3010     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
3011     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
3012     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
3013     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
3014     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
3015
3016     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3017
3018     enabled_all armv6t2 shared !pic && enable_pic
3019
3020 elif enabled mips; then
3021
3022     check_asm loongson '"dmult.g $1, $2, $3"'
3023     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
3024     enabled mips32r2  && add_cflags "-mips32r2" &&
3025      check_asm mips32r2  '"rotr $t0, $t1, 1"'
3026     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3027      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3028     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3029      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3030     enabled mipsfpu   && add_cflags "-mhard-float" &&
3031      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3032
3033
3034 elif enabled ppc; then
3035
3036     enable local_aligned_8 local_aligned_16
3037
3038     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3039     check_asm ibm_asm   '"add 0, 0, 0"'
3040     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3041     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3042
3043     # AltiVec flags: The FSF version of GCC differs from the Apple version
3044     if enabled altivec; then
3045         nogas=warn
3046         check_cflags -maltivec -mabi=altivec &&
3047         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3048         check_cflags -faltivec
3049
3050         # check if our compiler supports Motorola AltiVec C API
3051         check_cc <<EOF || disable altivec
3052 $inc_altivec_h
3053 int main(void) {
3054     vector signed int v1, v2, v3;
3055     v1 = vec_add(v2,v3);
3056     return 0;
3057 }
3058 EOF
3059
3060         # check if our compiler supports braces for vector declarations
3061         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3062 $inc_altivec_h
3063 int main (void) { (vector int) {1}; return 0; }
3064 EOF
3065     fi
3066
3067 elif enabled sparc; then
3068
3069     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3070         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3071
3072 elif enabled x86; then
3073
3074     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3075     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3076     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3077     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3078
3079     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3080
3081     enable local_aligned_8 local_aligned_16
3082
3083     # check whether EBP is available on x86
3084     # As 'i' is stored on the stack, this program will crash
3085     # if the base pointer is used to access it because the
3086     # base pointer is cleared in the inline assembly code.
3087     check_exec_crash <<EOF && enable ebp_available
3088     volatile int i=0;
3089     __asm__ volatile (
3090         "xorl %%ebp, %%ebp"
3091     ::: "%ebp");
3092     return i;
3093 EOF
3094
3095     # check whether EBX is available on x86
3096     check_asm ebx_available '""::"b"(0)' &&
3097         check_asm ebx_available '"":::"%ebx"'
3098
3099     # check whether xmm clobbers are supported
3100     check_asm xmm_clobbers '"":::"%xmm0"'
3101
3102     # check whether binutils is new enough to compile SSSE3/MMX2
3103     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3104     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3105
3106     if ! disabled_any asm mmx yasm; then
3107         if check_cmd $yasmexe --version; then
3108             enabled x86_64 && yasm_extra="-m amd64"
3109             yasm_debug="-g dwarf2"
3110         elif check_cmd nasm -v; then
3111             yasmexe=nasm
3112             yasm_debug="-g -F dwarf"
3113             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3114         fi
3115
3116         YASMFLAGS="-f $objformat $yasm_extra"
3117         enabled pic               && append YASMFLAGS "-DPIC"
3118         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3119         case "$objformat" in
3120             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3121         esac
3122
3123         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3124             die "yasm not found, use --disable-yasm for a crippled build"
3125         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3126     fi
3127
3128     case "$cpu" in
3129         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3130             disable fast_clz
3131         ;;
3132     esac
3133
3134 fi
3135
3136 if enabled asm; then
3137     as=${gas:=$as}
3138     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3139         $nogas "GNU assembler not found, install gas-preprocessor"
3140 fi
3141
3142 check_ldflags -Wl,--as-needed
3143
3144 if check_func dlopen; then
3145     ldl=
3146 elif check_func dlopen -ldl; then
3147     ldl=-ldl
3148 fi
3149
3150 if enabled network; then
3151     check_type "sys/types.h sys/socket.h" socklen_t
3152     check_type netdb.h "struct addrinfo"
3153     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3154     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3155     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3156     check_type netinet/in.h "struct sockaddr_in6"
3157     check_type poll.h "struct pollfd"
3158     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3159     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3160     check_header netinet/sctp.h
3161     check_func getaddrinfo $network_extralibs
3162     # Prefer arpa/inet.h over winsock2
3163     if check_header arpa/inet.h ; then
3164         check_func closesocket
3165     elif check_header winsock2.h ; then
3166         check_func_headers winsock2.h closesocket -lws2 && \
3167             network_extralibs="-lws2" || \
3168         { check_func_headers winsock2.h closesocket -lws2_32 && \
3169             network_extralibs="-lws2_32"; }
3170         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3171         check_type ws2tcpip.h socklen_t
3172         check_type ws2tcpip.h "struct addrinfo"
3173         check_type ws2tcpip.h "struct group_source_req"
3174         check_type ws2tcpip.h "struct ip_mreq_source"
3175         check_type ws2tcpip.h "struct ipv6_mreq"
3176         check_type winsock2.h "struct pollfd"
3177         check_type ws2tcpip.h "struct sockaddr_in6"
3178         check_type ws2tcpip.h "struct sockaddr_storage"
3179         check_struct winsock2.h "struct sockaddr" sa_len
3180     else
3181         disable network
3182     fi
3183 fi
3184
3185 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3186 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3187
3188 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3189 check_func  fcntl
3190 check_func  fork
3191 check_func  gethrtime
3192 check_func  getopt
3193 check_func  getrusage
3194 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3195 check_func  gettimeofday
3196 check_func  inet_aton $network_extralibs
3197 check_func  isatty
3198 check_func  localtime_r
3199 check_func  ${malloc_prefix}memalign            && enable memalign
3200 check_func  mkstemp
3201 check_func  mmap
3202 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3203 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3204 check_func  setrlimit
3205 check_func  strerror_r
3206 check_func  strptime
3207 check_func  sched_getaffinity
3208 check_func  sysconf
3209 check_func  sysctl
3210 check_func  usleep
3211 check_func_headers conio.h kbhit
3212 check_func_headers windows.h PeekNamedPipe
3213 check_func_headers io.h setmode
3214 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3215 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3216 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3217 check_func_headers windows.h GetProcessAffinityMask
3218 check_func_headers windows.h GetProcessTimes
3219 check_func_headers windows.h GetSystemTimeAsFileTime
3220 check_func_headers windows.h MapViewOfFile
3221 check_func_headers windows.h Sleep
3222 check_func_headers windows.h VirtualAlloc
3223 check_func_headers glob.h glob
3224
3225 check_header dlfcn.h
3226 check_header dxva.h
3227 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3228 check_header libcrystalhd/libcrystalhd_if.h
3229 check_header malloc.h
3230 check_header poll.h
3231 check_header sys/mman.h
3232 check_header sys/param.h
3233 check_header sys/resource.h
3234 check_header sys/select.h
3235 check_header sys/time.h
3236 check_header termios.h
3237 check_header unistd.h
3238 check_header vdpau/vdpau.h
3239 check_header vdpau/vdpau_x11.h
3240 check_header windows.h
3241 check_header X11/extensions/XvMClib.h
3242 check_header asm/types.h
3243
3244 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3245 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3246
3247 # check for VDA header
3248 if ! disabled vda; then
3249     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3250         enable vda
3251         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3252     fi
3253 fi
3254
3255 if ! disabled w32threads && ! enabled pthreads; then
3256     check_func _beginthreadex && enable w32threads
3257 fi
3258
3259 # check for some common methods of building with pthread support
3260 # do this before the optional library checks as some of them require pthreads
3261 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3262     enable pthreads
3263     if check_func pthread_create; then
3264         :
3265     elif check_func pthread_create -pthread; then
3266         add_cflags -pthread
3267         add_extralibs -pthread
3268     elif check_func pthread_create -pthreads; then
3269         add_cflags -pthreads
3270         add_extralibs -pthreads
3271     elif check_func pthread_create -lpthreadGC2; then
3272         add_extralibs -lpthreadGC2
3273     elif ! check_lib pthread.h pthread_create -lpthread; then
3274         disable pthreads
3275     fi
3276 fi
3277
3278 for thread in $THREADS_LIST; do
3279     if enabled $thread; then
3280         test -n "$thread_type" &&
3281             die "ERROR: Only one thread type must be selected." ||
3282             thread_type="$thread"
3283     fi
3284 done
3285
3286 if enabled pthreads; then
3287   check_func pthread_cancel
3288 fi
3289
3290 check_lib math.h sin -lm && LIBM="-lm"
3291 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3292 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3293
3294 check_mathfunc cbrtf
3295 check_mathfunc exp2
3296 check_mathfunc exp2f
3297 check_mathfunc isinf
3298 check_mathfunc isnan
3299 check_mathfunc llrint
3300 check_mathfunc llrintf
3301 check_mathfunc log2
3302 check_mathfunc log2f
3303 check_mathfunc lrint
3304 check_mathfunc lrintf
3305 check_mathfunc rint
3306 check_mathfunc round
3307 check_mathfunc roundf
3308 check_mathfunc trunc
3309 check_mathfunc truncf
3310
3311 # these are off by default, so fail if requested and not available
3312 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3313 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3314 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3315 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3316 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3317 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3318 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3319 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3320 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3321                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3322                         die "ERROR: libcelt version must be >= 0.11.0."; }
3323 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3324 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3325 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3326 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3327 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3328 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3329 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3330 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3331 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3332 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3333 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3334 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3335 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3336 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3337 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3338 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3339 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3340     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3341     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3342 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3343 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3344 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3345 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3346 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3347 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3348 enabled libvpx     && {
3349     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3350                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3351     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3352                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3353 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3354                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3355                         die "ERROR: libx264 version must be >= 0.118."; }
3356 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3357 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3358 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3359                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3360                         die "ERROR: openal not found"; } &&
3361                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3362                         die "ERROR: openal version must be 1.1 or compatible"; }
3363 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3364                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3365                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3366                         die "ERROR: openssl not found"; }
3367
3368 # libdc1394 check
3369 if enabled libdc1394; then
3370     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3371         enable libdc1394_2; } ||
3372     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3373         enable libdc1394_1; } ||
3374     die "ERROR: No version of libdc1394 found "
3375 fi
3376
3377 SDL_CONFIG="${cross_prefix}sdl-config"
3378 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3379     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3380     enable sdl &&
3381     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3382 else
3383   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3384     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3385     sdl_libs=$("${SDL_CONFIG}" --libs)
3386     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3387     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3388     enable sdl &&
3389     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3390   fi
3391 fi
3392 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3393
3394 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3395 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3396 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3397
3398 check_header linux/fb.h
3399 check_header linux/videodev.h
3400 check_header linux/videodev2.h
3401 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3402
3403 check_header sys/videoio.h
3404
3405 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3406 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3407 # w32api 3.12 had it defined wrong
3408 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3409
3410 check_type "dshow.h" IBaseFilter
3411
3412 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3413 { check_header dev/bktr/ioctl_meteor.h &&
3414   check_header dev/bktr/ioctl_bt848.h; } ||
3415 { check_header machine/ioctl_meteor.h &&
3416   check_header machine/ioctl_bt848.h; } ||
3417 { check_header dev/video/meteor/ioctl_meteor.h &&
3418   check_header dev/video/bktr/ioctl_bt848.h; } ||
3419 check_header dev/ic/bt8xx.h
3420
3421 check_header sndio.h
3422 if check_struct sys/soundcard.h audio_buf_info bytes; then
3423     enable_safe sys/soundcard.h
3424 else
3425     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3426     #include <sys/soundcard.h>
3427     audio_buf_info abc;
3428 EOF
3429 fi
3430 check_header soundcard.h
3431
3432 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3433
3434 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3435     check_func jack_port_get_latency_range -ljack
3436
3437 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3438
3439 enabled libcdio &&
3440     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3441
3442 enabled x11grab                                           &&
3443 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3444 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3445 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3446
3447 if ! disabled vaapi; then
3448     check_lib va/va.h vaInitialize -lva && {
3449         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3450         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3451     } || disable vaapi
3452 fi
3453
3454 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3455 check_cpp_condition \
3456     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3457     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3458       disable vdpau; }
3459 fi
3460
3461 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3462 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3463 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"
3464
3465 # add some useful compiler flags if supported
3466 check_cflags -Wdeclaration-after-statement
3467 check_cflags -Wall
3468 check_cflags -Wno-parentheses
3469 check_cflags -Wno-switch
3470 check_cflags -Wno-format-zero-length
3471 check_cflags -Wdisabled-optimization
3472 check_cflags -Wpointer-arith
3473 check_cflags -Wredundant-decls
3474 check_cflags -Wno-pointer-sign
3475 check_cflags -Wwrite-strings
3476 check_cflags -Wtype-limits
3477 check_cflags -Wundef
3478 check_cflags -Wmissing-prototypes
3479 check_cflags -Wno-pointer-to-int-cast
3480 check_cflags -Wstrict-prototypes
3481 enabled extra_warnings && check_cflags -Winline
3482
3483 # add some linker flags
3484 check_ldflags -Wl,--warn-common
3485 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3486 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3487
3488 enabled xmm_clobber_test &&                             \
3489     check_ldflags -Wl,--wrap,avcodec_open2              \
3490                   -Wl,--wrap,avcodec_decode_audio4      \
3491                   -Wl,--wrap,avcodec_decode_video2      \
3492                   -Wl,--wrap,avcodec_decode_subtitle2   \
3493                   -Wl,--wrap,avcodec_encode_audio2      \
3494                   -Wl,--wrap,avcodec_encode_video       \
3495                   -Wl,--wrap,avcodec_encode_subtitle    \
3496                   -Wl,--wrap,sws_scale ||               \
3497     disable xmm_clobber_test
3498
3499 echo "X{};" > $TMPV
3500 if test_ldflags -Wl,--version-script,$TMPV; then
3501     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3502     check_cc <<EOF && enable symver_asm_label
3503 void ff_foo(void) __asm__ ("av_foo@VERSION");
3504 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3505 EOF
3506     check_cc <<EOF && enable symver_gnu_asm
3507 __asm__(".symver ff_foo,av_foo@VERSION");
3508 void ff_foo(void) {}
3509 EOF
3510 fi
3511
3512 if [ -n "$optflags" ]; then
3513     add_cflags $optflags
3514 elif enabled small; then
3515     add_cflags $size_cflags
3516 elif enabled optimizations; then
3517     add_cflags $speed_cflags
3518 else
3519     add_cflags $noopt_cflags
3520 fi
3521 check_cflags -fno-math-errno
3522 check_cflags -fno-signed-zeros
3523 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3524 int x;
3525 EOF
3526
3527
3528 if enabled icc; then
3529     # Just warnings, no remarks
3530     check_cflags -w1
3531     # -wd: Disable following warnings
3532     # 144, 167, 556: -Wno-pointer-sign
3533     # 1292: attribute "foo" ignored
3534     # 1419: external declaration in primary source file
3535     # 10006: ignoring unknown option -fno-signed-zeros
3536     # 10148: ignoring unknown option -Wno-parentheses
3537     # 10156: ignoring option '-W'; no argument required
3538     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3539     # 11030: Warning unknown option --as-needed
3540     # 10156: ignoring option '-export'; no argument required
3541     check_ldflags -wd10156,11030
3542     # Allow to compile with optimizations
3543     check_ldflags -march=$cpu
3544     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3545     enable ebp_available
3546     if enabled x86_32; then
3547         test ${icc_version%%.*} -ge 11 && \
3548             check_cflags -falign-stack=maintain-16-byte || \
3549             disable aligned_stack
3550     fi
3551 elif enabled ccc; then
3552     # disable some annoying warnings
3553     add_cflags -msg_disable cvtu32to64
3554     add_cflags -msg_disable embedcomment
3555     add_cflags -msg_disable needconstext
3556     add_cflags -msg_disable nomainieee
3557     add_cflags -msg_disable ptrmismatch1
3558     add_cflags -msg_disable unreachcode
3559 elif enabled gcc; then
3560     check_cflags -fno-tree-vectorize
3561     check_cflags -Werror=implicit-function-declaration
3562     check_cflags -Werror=missing-prototypes
3563 elif enabled llvm_gcc; then
3564     check_cflags -mllvm -stack-alignment=16
3565 elif enabled clang; then
3566     check_cflags -mllvm -stack-alignment=16
3567     check_cflags -Qunused-arguments
3568 elif enabled armcc; then
3569     # 2523: use of inline assembler is deprecated
3570     add_cflags -W${armcc_opt},--diag_suppress=2523
3571     add_cflags -W${armcc_opt},--diag_suppress=1207
3572     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3573     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3574     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3575     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3576 elif enabled tms470; then
3577     add_cflags -pds=824 -pds=837
3578 elif enabled pathscale; then
3579     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3580 fi
3581
3582 enabled_any $THREADS_LIST      && enable threads
3583
3584 check_deps $CONFIG_LIST       \
3585            $CONFIG_EXTRA      \
3586            $HAVE_LIST         \
3587            $ALL_COMPONENTS    \
3588            $ALL_TESTS         \
3589
3590 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3591
3592 if test $target_os = "haiku"; then
3593     disable memalign
3594     disable posix_memalign
3595 fi
3596
3597 ! enabled_any memalign posix_memalign aligned_malloc &&
3598     enabled_any $need_memalign && enable memalign_hack
3599
3600 # add_dep lib dep
3601 # -> enable ${lib}_deps_${dep}
3602 # -> add $dep to ${lib}_deps only once
3603 add_dep() {
3604     lib=$1
3605     dep=$2
3606     enabled "${lib}_deps_${dep}" && return 0
3607     enable  "${lib}_deps_${dep}"
3608     prepend "${lib}_deps" $dep
3609 }
3610
3611 # merge deps lib components
3612 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3613 merge_deps() {
3614     lib=$1
3615     shift
3616     for comp in $*; do
3617         enabled $comp || continue
3618         eval "dep=\"\$${comp}_deps\""
3619         for d in $dep; do
3620             add_dep $lib $d
3621         done
3622     done
3623 }
3624
3625 merge_deps libavfilter $FILTER_LIST
3626
3627 echo "install prefix            $prefix"
3628 echo "source path               $source_path"
3629 echo "C compiler                $cc"
3630 echo "ARCH                      $arch ($cpu)"
3631 if test "$build_suffix" != ""; then
3632     echo "build suffix              $build_suffix"
3633 fi
3634 if test "$progs_suffix" != ""; then
3635     echo "progs suffix              $progs_suffix"
3636 fi
3637 if test "$extra_version" != ""; then
3638     echo "version string suffix     $extra_version"
3639 fi
3640 echo "big-endian                ${bigendian-no}"
3641 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3642 if enabled x86; then
3643     echo "${yasmexe}                      ${yasm-no}"
3644     echo "MMX enabled               ${mmx-no}"
3645     echo "MMX2 enabled              ${mmx2-no}"
3646     echo "3DNow! enabled            ${amd3dnow-no}"
3647     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3648     echo "SSE enabled               ${sse-no}"
3649     echo "SSSE3 enabled             ${ssse3-no}"
3650     echo "AVX enabled               ${avx-no}"
3651     echo "CMOV enabled              ${cmov-no}"
3652     echo "CMOV is fast              ${fast_cmov-no}"
3653     echo "EBX available             ${ebx_available-no}"
3654     echo "EBP available             ${ebp_available-no}"
3655 fi
3656 if enabled arm; then
3657     echo "ARMv5TE enabled           ${armv5te-no}"
3658     echo "ARMv6 enabled             ${armv6-no}"
3659     echo "ARMv6T2 enabled           ${armv6t2-no}"
3660     echo "ARM VFP enabled           ${armvfp-no}"
3661     echo "NEON enabled              ${neon-no}"
3662 fi
3663 if enabled mips; then
3664     echo "MMI enabled               ${mmi-no}"
3665     echo "MIPS FPU enabled          ${mipsfpu-no}"
3666     echo "MIPS32R2 enabled          ${mips32r2-no}"
3667     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3668     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3669 fi
3670 if enabled ppc; then
3671     echo "AltiVec enabled           ${altivec-no}"
3672     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3673     echo "dcbzl available           ${dcbzl-no}"
3674 fi
3675 if enabled sparc; then
3676     echo "VIS enabled               ${vis-no}"
3677 fi
3678 echo "debug symbols             ${debug-no}"
3679 echo "strip symbols             ${stripping-no}"
3680 echo "optimize for size         ${small-no}"
3681 echo "optimizations             ${optimizations-no}"
3682 echo "static                    ${static-no}"
3683 echo "shared                    ${shared-no}"
3684 echo "postprocessing support    ${postproc-no}"
3685 echo "new filter support        ${avfilter-no}"
3686 echo "network support           ${network-no}"
3687 echo "threading support         ${thread_type-no}"
3688 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3689 echo "SDL support               ${sdl-no}"
3690 echo "libdxva2 enabled          ${dxva2-no}"
3691 echo "libva enabled             ${vaapi-no}"
3692 echo "libvdpau enabled          ${vdpau-no}"
3693 echo "AVISynth enabled          ${avisynth-no}"
3694 echo "frei0r enabled            ${frei0r-no}"
3695 echo "gnutls enabled            ${gnutls-no}"
3696 echo "libaacplus enabled        ${libaacplus-no}"
3697 echo "libass enabled            ${libass-no}"
3698 echo "libcdio support           ${libcdio-no}"
3699 echo "libcelt enabled           ${libcelt-no}"
3700 echo "libdc1394 support         ${libdc1394-no}"
3701 echo "libfaac enabled           ${libfaac-no}"
3702 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3703 echo "libgsm enabled            ${libgsm-no}"
3704 echo "libiec61883 support       ${libiec61883-no}"
3705 echo "libilbc enabled           ${libilbc-no}"
3706 echo "libmodplug enabled        ${libmodplug-no}"
3707 echo "libmp3lame enabled        ${libmp3lame-no}"
3708 echo "libnut enabled            ${libnut-no}"
3709 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3710 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3711 echo "libopencv support         ${libopencv-no}"
3712 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3713 echo "libpulse enabled          ${libpulse-no}"
3714 echo "librtmp enabled           ${librtmp-no}"
3715 echo "libschroedinger enabled   ${libschroedinger-no}"
3716 echo "libspeex enabled          ${libspeex-no}"
3717 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3718 echo "libtheora enabled         ${libtheora-no}"
3719 echo "libutvideo enabled        ${libutvideo-no}"
3720 echo "libv4l2 enabled           ${libv4l2-no}"
3721 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3722 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3723 echo "libvorbis enabled         ${libvorbis-no}"
3724 echo "libvpx enabled            ${libvpx-no}"
3725 echo "libx264 enabled           ${libx264-no}"
3726 echo "libxavs enabled           ${libxavs-no}"
3727 echo "libxvid enabled           ${libxvid-no}"
3728 echo "openal enabled            ${openal-no}"
3729 echo "openssl enabled           ${openssl-no}"
3730 echo "zlib enabled              ${zlib-no}"
3731 echo "bzlib enabled             ${bzlib-no}"
3732 echo "texi2html enabled         ${texi2html-no}"
3733 echo "pod2man enabled           ${pod2man-no}"
3734 echo "makeinfo enabled          ${makeinfo-no}"
3735 test -n "$random_seed" &&
3736     echo "random seed               ${random_seed}"
3737 echo
3738
3739 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3740     echo "Enabled ${type}s:"
3741     eval list=\$$(toupper $type)_LIST
3742     print_enabled '_*' $list | sort | pr -r -3 -t
3743     echo
3744 done
3745
3746 license="LGPL version 2.1 or later"
3747 if enabled nonfree; then
3748     license="nonfree and unredistributable"
3749 elif enabled gplv3; then
3750     license="GPL version 3 or later"
3751 elif enabled lgplv3; then
3752     license="LGPL version 3 or later"
3753 elif enabled gpl; then
3754     license="GPL version 2 or later"
3755 fi
3756
3757 echo "License: $license"
3758
3759 echo "Creating config.mak and config.h..."
3760
3761 test -e Makefile || $ln_s "$source_path/Makefile" .
3762
3763 enabled stripping || strip="echo skipping strip"
3764
3765 config_files="$TMPH config.mak"
3766
3767 cat > config.mak <<EOF
3768 # Automatically generated by configure - do not modify!
3769 ifndef FFMPEG_CONFIG_MAK
3770 FFMPEG_CONFIG_MAK=1
3771 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3772 prefix=$prefix
3773 LIBDIR=\$(DESTDIR)$libdir
3774 SHLIBDIR=\$(DESTDIR)$shlibdir
3775 INCDIR=\$(DESTDIR)$incdir
3776 BINDIR=\$(DESTDIR)$bindir
3777 DATADIR=\$(DESTDIR)$datadir
3778 MANDIR=\$(DESTDIR)$mandir
3779 SRC_PATH=$source_path
3780 ifndef MAIN_MAKEFILE
3781 SRC_PATH:=\$(SRC_PATH:.%=..%)
3782 endif
3783 CC_IDENT=$cc_ident
3784 ARCH=$arch
3785 CC=$cc
3786 CXX=$cxx
3787 AS=$as
3788 LD=$ld
3789 DEPCC=$dep_cc
3790 YASM=$yasmexe
3791 YASMDEP=$yasmexe
3792 AR=$ar
3793 RANLIB=$ranlib
3794 CP=cp -p
3795 LN_S=$ln_s
3796 STRIP=$strip
3797 CPPFLAGS=$CPPFLAGS
3798 CFLAGS=$CFLAGS
3799 CXXFLAGS=$CXXFLAGS
3800 ASFLAGS=$ASFLAGS
3801 AS_O=$CC_O
3802 CC_O=$CC_O
3803 CXX_O=$CXX_O
3804 LDFLAGS=$LDFLAGS
3805 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3806 SHFLAGS=$SHFLAGS
3807 YASMFLAGS=$YASMFLAGS
3808 BUILDSUF=$build_suffix
3809 PROGSSUF=$progs_suffix
3810 FULLNAME=$FULLNAME
3811 LIBPREF=$LIBPREF
3812 LIBSUF=$LIBSUF
3813 LIBNAME=$LIBNAME
3814 SLIBPREF=$SLIBPREF
3815 SLIBSUF=$SLIBSUF
3816 EXESUF=$EXESUF
3817 EXTRA_VERSION=$extra_version
3818 DEPFLAGS=$DEPFLAGS
3819 CCDEP=$CCDEP
3820 CXXDEP=$CXXDEP
3821 ASDEP=$ASDEP
3822 CC_DEPFLAGS=$CC_DEPFLAGS
3823 AS_DEPFLAGS=$AS_DEPFLAGS
3824 HOSTCC=$host_cc
3825 HOSTCFLAGS=$host_cflags
3826 HOSTEXESUF=$HOSTEXESUF
3827 HOSTLDFLAGS=$host_ldflags
3828 HOSTLIBS=$host_libs
3829 TARGET_EXEC=$target_exec
3830 TARGET_PATH=$target_path
3831 SDL_LIBS=$sdl_libs
3832 SDL_CFLAGS=$sdl_cflags
3833 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3834 EXTRALIBS=$extralibs
3835 INSTALL=$install
3836 LIBTARGET=${LIBTARGET}
3837 SLIBNAME=${SLIBNAME}
3838 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3839 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3840 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3841 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3842 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3843 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3844 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3845 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3846 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3847 NOREDZONE_FLAGS=$noredzone_flags
3848 EOF
3849
3850 get_version(){
3851     lcname=$1
3852     name=$(toupper $lcname)
3853     file=$source_path/$lcname/version.h
3854     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3855     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3856     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3857     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3858 }
3859
3860 get_version_old(){
3861     name=$1
3862     file=$source_path/$2
3863 # This condition will be removed when we stop supporting old libpostproc versions
3864 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3865     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3866     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3867 fi
3868     lcname=$(tolower $name)
3869     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3870     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3871 }
3872
3873 get_version_old LIBPOSTPROC libpostproc/postprocess.h
3874 get_version_old LIBSWRESAMPLE libswresample/swresample.h
3875
3876 get_version libavcodec
3877 get_version libavdevice
3878 get_version libavfilter
3879 get_version libavformat
3880 get_version libavresample
3881 get_version libavutil
3882 get_version libswscale
3883
3884 cat > $TMPH <<EOF
3885 /* Automatically generated by configure - do not modify! */
3886 #ifndef FFMPEG_CONFIG_H
3887 #define FFMPEG_CONFIG_H
3888 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3889 #define FFMPEG_LICENSE "$(c_escape $license)"
3890 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3891 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3892 #define CC_TYPE "$cc_type"
3893 #define CC_VERSION $cc_version
3894 #define av_restrict $_restrict
3895 #define EXTERN_PREFIX "${extern_prefix}"
3896 #define EXTERN_ASM ${extern_prefix}
3897 #define SLIBSUF "$SLIBSUF"
3898 EOF
3899
3900 test -n "$assert_level" &&
3901     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3902
3903 test -n "$malloc_prefix" &&
3904     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3905
3906 if enabled yasm; then
3907     append config_files $TMPASM
3908     printf '' >$TMPASM
3909 fi
3910
3911 print_config ARCH_   "$config_files" $ARCH_LIST
3912 print_config HAVE_   "$config_files" $HAVE_LIST
3913 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3914                                      $CONFIG_EXTRA      \
3915                                      $ALL_COMPONENTS    \
3916
3917 cat >>config.mak <<EOF
3918 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3919 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3920 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3921 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3922 EOF
3923
3924 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3925 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3926
3927 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3928 cp_if_changed $TMPH config.h
3929 touch .config
3930
3931 enabled yasm && cp_if_changed $TMPASM config.asm
3932
3933 cat > $TMPH <<EOF
3934 /* Generated by ffconf */
3935 #ifndef AVUTIL_AVCONFIG_H
3936 #define AVUTIL_AVCONFIG_H
3937 EOF
3938
3939 test "$postproc_version" != current && cat >> $TMPH <<EOF
3940 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3941 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3942 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3943 EOF
3944
3945 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3946
3947 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3948
3949 cp_if_changed $TMPH libavutil/avconfig.h
3950
3951 test -n "$WARNINGS" && printf "\n$WARNINGS"
3952
3953 # build pkg-config files
3954
3955 pkgconfig_generate(){
3956 name=$1
3957 shortname=${name#lib}${build_suffix}
3958 comment=$2
3959 version=$3
3960 libs=$4
3961 requires=$5
3962 enabled ${name#lib} || return 0
3963 mkdir -p $name
3964 cat <<EOF > $name/$name.pc
3965 prefix=$prefix
3966 exec_prefix=\${prefix}
3967 libdir=$libdir
3968 includedir=$incdir
3969
3970 Name: $name
3971 Description: $comment
3972 Version: $version
3973 Requires: $(enabled shared || echo $requires)
3974 Requires.private: $(enabled shared && echo $requires)
3975 Conflicts:
3976 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3977 Libs.private: $(enabled shared && echo $libs)
3978 Cflags: -I\${includedir}
3979 EOF
3980
3981 mkdir -p doc/examples/pc-uninstalled
3982 includedir=${source_path}
3983 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
3984 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
3985 prefix=
3986 exec_prefix=
3987 libdir=\${pcfiledir}/../../../$name
3988 includedir=${includedir}
3989
3990 Name: $name
3991 Description: $comment
3992 Version: $version
3993 Requires: $requires
3994 Conflicts:
3995 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3996 Cflags: -I\${includedir}
3997 EOF
3998 }
3999
4000 libavfilter_pc_deps=""
4001 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4002 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4003 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4004 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4005 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4006 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4007
4008 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4009 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4010
4011 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4012 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4013 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4014 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4015 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4016 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4017 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4018 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4019 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"