Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Standard options:
63   --help                   print this message
64   --logfile=FILE           log tests and output to FILE [config.log]
65   --disable-logging        do not log configure debug information
66   --prefix=PREFIX          install in PREFIX [$prefix]
67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
69   --libdir=DIR             install libs in DIR [PREFIX/lib]
70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
71   --incdir=DIR             install includes in DIR [PREFIX/include]
72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
73
74 Configuration options:
75   --disable-static         do not build static libraries [no]
76   --enable-shared          build shared libraries [no]
77   --enable-gpl             allow use of GPL code, the resulting libs
78                            and binaries will be under GPL [no]
79   --enable-version3        upgrade (L)GPL to version 3 [no]
80   --enable-nonfree         allow use of nonfree code, the resulting libs
81                            and binaries will be unredistributable [no]
82   --disable-doc            do not build documentation
83   --disable-ffmpeg         disable ffmpeg build
84   --disable-ffplay         disable ffplay build
85   --disable-ffprobe        disable ffprobe build
86   --disable-ffserver       disable ffserver build
87   --disable-avdevice       disable libavdevice build
88   --disable-avcodec        disable libavcodec build
89   --disable-avformat       disable libavformat build
90   --disable-swresample     disable libswresample build
91   --disable-swscale        disable libswscale build
92   --disable-postproc       disable libpostproc build
93   --disable-avfilter       disable video filter support [no]
94   --disable-pthreads       disable pthreads [auto]
95   --disable-w32threads     disable Win32 threads [auto]
96   --disable-os2threads     disable OS/2 threads [auto]
97   --enable-x11grab         enable X11 grabbing [no]
98   --disable-network        disable network support [no]
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101   --disable-fastdiv        disable table-based division
102   --enable-small           optimize for size instead of speed
103   --disable-aandct         disable AAN DCT code
104   --disable-dct            disable DCT code
105   --disable-fft            disable FFT code
106   --disable-golomb         disable Golomb code
107   --disable-huffman        disable Huffman code
108   --disable-lpc            disable LPC code
109   --disable-mdct           disable MDCT code
110   --disable-rdft           disable RDFT code
111   --enable-vaapi           enable VAAPI code [autodetect]
112   --enable-vda             enable VDA code [autodetect]
113   --enable-vdpau           enable VDPAU code [autodetect]
114   --disable-dxva2          disable DXVA2 code
115   --disable-vda            disable VDA code
116   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
117   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
118   --disable-safe-bitstream-reader
119                            disable buffer boundary checking in bitreaders
120                            (faster, but may crash)
121   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
122   --disable-everything     disable all components listed below
123   --disable-encoder=NAME   disable encoder NAME
124   --enable-encoder=NAME    enable encoder NAME
125   --disable-encoders       disable all encoders
126   --disable-decoder=NAME   disable decoder NAME
127   --enable-decoder=NAME    enable decoder NAME
128   --disable-decoders       disable all decoders
129   --disable-hwaccel=NAME   disable hwaccel NAME
130   --enable-hwaccel=NAME    enable hwaccel NAME
131   --disable-hwaccels       disable all hwaccels
132   --disable-muxer=NAME     disable muxer NAME
133   --enable-muxer=NAME      enable muxer NAME
134   --disable-muxers         disable all muxers
135   --disable-demuxer=NAME   disable demuxer NAME
136   --enable-demuxer=NAME    enable demuxer NAME
137   --disable-demuxers       disable all demuxers
138   --enable-parser=NAME     enable parser NAME
139   --disable-parser=NAME    disable parser NAME
140   --disable-parsers        disable all parsers
141   --enable-bsf=NAME        enable bitstream filter NAME
142   --disable-bsf=NAME       disable bitstream filter NAME
143   --disable-bsfs           disable all bitstream filters
144   --enable-protocol=NAME   enable protocol NAME
145   --disable-protocol=NAME  disable protocol NAME
146   --disable-protocols      disable all protocols
147   --disable-indev=NAME     disable input device NAME
148   --disable-outdev=NAME    disable output device NAME
149   --disable-indevs         disable input devices
150   --disable-outdevs        disable output devices
151   --disable-devices        disable all devices
152   --enable-filter=NAME     enable filter NAME
153   --disable-filter=NAME    disable filter NAME
154   --disable-filters        disable all filters
155   --list-decoders          show all available decoders
156   --list-encoders          show all available encoders
157   --list-hwaccels          show all available hardware accelerators
158   --list-muxers            show all available muxers
159   --list-demuxers          show all available demuxers
160   --list-parsers           show all available parsers
161   --list-protocols         show all available protocols
162   --list-bsfs              show all available bitstream filters
163   --list-indevs            show all available input devices
164   --list-outdevs           show all available output devices
165   --list-filters           show all available filters
166
167 External library support:
168   --enable-avisynth        enable reading of AVISynth script files [no]
169   --enable-bzlib           enable bzlib [autodetect]
170   --enable-frei0r          enable frei0r video filtering
171   --enable-gnutls          enable gnutls [no]
172   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
173   --enable-libass          enable libass subtitles rendering [no]
174   --enable-libbluray       enable BluRay reading using libbluray [no]
175   --enable-libcelt         enable CELT decoding via libcelt [no]
176   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
177   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
178   --enable-libopencv       enable video filtering via libopencv [no]
179   --enable-libcdio         enable audio CD grabbing with libcdio
180   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
181                            and libraw1394 [no]
182   --enable-libdirac        enable Dirac support via libdirac [no]
183   --enable-libfaac         enable FAAC support via libfaac [no]
184   --enable-libfreetype     enable libfreetype [no]
185   --enable-libgsm          enable GSM support via libgsm [no]
186   --enable-libmodplug      enable ModPlug via libmodplug [no]
187   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
188   --enable-libnut          enable NUT (de)muxing via libnut,
189                            native (de)muxer exists [no]
190   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [no]
191   --enable-libpulse        enable Pulseaudio input via libpulse [no]
192   --enable-librtmp         enable RTMP[E] support via librtmp [no]
193   --enable-libschroedinger enable Dirac support via libschroedinger [no]
194   --enable-libspeex        enable Speex support via libspeex [no]
195   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
196   --enable-libtheora       enable Theora encoding via libtheora [no]
197   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
198   --enable-libv4l2         enable libv4l2/v4l-utils [no]
199   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
200   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
201   --enable-libvorbis       enable Vorbis encoding via libvorbis,
202                            native implementation exists [no]
203   --enable-libvpx          enable VP8 support via libvpx [no]
204   --enable-libx264         enable H.264 encoding via x264 [no]
205   --enable-libxavs         enable AVS encoding via xavs [no]
206   --enable-libxvid         enable Xvid encoding via xvidcore,
207                            native MPEG-4/Xvid encoder exists [no]
208   --enable-openal          enable OpenAL 1.1 capture support [no]
209   --enable-openssl         enable openssl [no]
210   --enable-zlib            enable zlib [autodetect]
211
212 Advanced options (experts only):
213   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
214   --enable-cross-compile   assume a cross-compiler is used
215   --sysroot=PATH           root of cross-build tree
216   --sysinclude=PATH        location of cross-build system headers
217   --target-os=OS           compiler targets OS [$target_os]
218   --target-exec=CMD        command to run executables on target
219   --target-path=DIR        path to view of build directory on target
220   --nm=NM                  use nm tool NM [$nm_default]
221   --ar=AR                  use archive tool AR [$ar_default]
222   --as=AS                  use assembler AS [$as_default]
223   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
224   --cc=CC                  use C compiler CC [$cc_default]
225   --cxx=CXX                use C compiler CXX [$cxx_default]
226   --ld=LD                  use linker LD [$ld_default]
227   --host-cc=HOSTCC         use host C compiler HOSTCC
228   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
229   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
230   --host-libs=HLIBS        use libs HLIBS when linking for host
231   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
232   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
233   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
234   --extra-libs=ELIBS       add ELIBS [$ELIBS]
235   --extra-version=STRING   version string suffix []
236   --build-suffix=SUFFIX    library name suffix []
237   --progs-suffix=SUFFIX    program name suffix []
238   --arch=ARCH              select architecture [$arch]
239   --cpu=CPU                select the minimum required CPU (affects
240                            instruction selection, may crash on older CPUs)
241   --disable-asm            disable all assembler optimizations
242   --disable-altivec        disable AltiVec optimizations
243   --disable-amd3dnow       disable 3DNow! optimizations
244   --disable-amd3dnowext    disable 3DNow! extended optimizations
245   --disable-mmx            disable MMX optimizations
246   --disable-mmx2           disable MMX2 optimizations
247   --disable-sse            disable SSE optimizations
248   --disable-ssse3          disable SSSE3 optimizations
249   --disable-avx            disable AVX optimizations
250   --disable-armv5te        disable armv5te optimizations
251   --disable-armv6          disable armv6 optimizations
252   --disable-armv6t2        disable armv6t2 optimizations
253   --disable-armvfp         disable ARM VFP optimizations
254   --disable-mmi            disable MMI optimizations
255   --disable-neon           disable NEON optimizations
256   --disable-vis            disable VIS optimizations
257   --disable-yasm           disable use of yasm assembler
258   --enable-pic             build position-independent code
259   --malloc-prefix=PFX      prefix malloc and related names with PFX
260   --enable-sram            allow use of on-chip SRAM
261   --disable-symver         disable symbol versioning
262   --optflags               override optimization-related compiler flags
263   --postproc-version=V     build libpostproc version V.
264                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
265
266 Developer options (useful when working on FFmpeg itself):
267   --enable-coverage        build with test coverage instrumentation
268   --disable-debug          disable debugging symbols
269   --enable-debug=LEVEL     set the debug level [$debuglevel]
270   --disable-optimizations  disable compiler optimizations
271   --enable-extra-warnings  enable more compiler warnings
272   --disable-stripping      disable stripping of executables and shared libraries
273   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
274                            leaks and errors, using the specified valgrind binary.
275                            Cannot be combined with --target-exec
276   --samples=PATH           location of test samples for FATE, if not set use
277                            \$FATE_SAMPLES at make invocation time.
278   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
279                            should be used only for debugging purposes)
280
281 NOTE: Object files are built at the place where configure is launched.
282 EOF
283   exit 0
284 }
285
286 quotes='""'
287
288 log(){
289     echo "$@" >> $logfile
290 }
291
292 log_file(){
293     log BEGIN $1
294     pr -n -t $1 >> $logfile
295     log END $1
296 }
297
298 echolog(){
299     log "$@"
300     echo "$@"
301 }
302
303 warn(){
304     log "WARNING: $*"
305     WARNINGS="${WARNINGS}WARNING: $*\n"
306 }
307
308 die(){
309     echolog "$@"
310     cat <<EOF
311
312 If you think configure made a mistake, make sure you are using the latest
313 version from Git.  If the latest version fails, report the problem to the
314 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
315 EOF
316     if disabled logging; then
317         cat <<EOF
318 Rerun configure with logging enabled (do not use --disable-logging), and
319 include the log this produces with your report.
320 EOF
321     else
322 cat <<EOF
323 Include the log file "$logfile" produced by configure as this will help
324 solving the problem.
325 EOF
326     fi
327     exit 1
328 }
329
330 # Avoid locale weirdness, besides we really just want to translate ASCII.
331 toupper(){
332     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
333 }
334
335 tolower(){
336     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
337 }
338
339 c_escape(){
340     echo "$*" | sed 's/["\\]/\\\0/g'
341 }
342
343 sh_quote(){
344     v=$(echo "$1" | sed "s/'/'\\\\''/g")
345     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
346     echo "$v"
347 }
348
349 cleanws(){
350     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
351 }
352
353 filter(){
354     pat=$1
355     shift
356     for v; do
357         eval "case $v in $pat) echo $v ;; esac"
358     done
359 }
360
361 filter_out(){
362     pat=$1
363     shift
364     for v; do
365         eval "case $v in $pat) ;; *) echo $v ;; esac"
366     done
367 }
368
369 map(){
370     m=$1
371     shift
372     for v; do eval $m; done
373 }
374
375 set_all(){
376     value=$1
377     shift
378     for var in $*; do
379         eval $var=$value
380     done
381 }
382
383 set_weak(){
384     value=$1
385     shift
386     for var; do
387         eval : \${$var:=$value}
388     done
389 }
390
391 set_safe(){
392     var=$1
393     shift
394     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
395 }
396
397 get_safe(){
398     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
399 }
400
401 pushvar(){
402     for var in $*; do
403         eval level=\${${var}_level:=0}
404         eval ${var}_${level}="\$$var"
405         eval ${var}_level=$(($level+1))
406     done
407 }
408
409 popvar(){
410     for var in $*; do
411         eval level=\${${var}_level:-0}
412         test $level = 0 && continue
413         eval level=$(($level-1))
414         eval $var="\${${var}_${level}}"
415         eval ${var}_level=$level
416         eval unset ${var}_${level}
417     done
418 }
419
420 enable(){
421     set_all yes $*
422 }
423
424 disable(){
425     set_all no $*
426 }
427
428 enable_weak(){
429     set_weak yes $*
430 }
431
432 disable_weak(){
433     set_weak no $*
434 }
435
436 enable_safe(){
437     for var; do
438         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
439     done
440 }
441
442 disable_safe(){
443     for var; do
444         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
445     done
446 }
447
448 do_enable_deep(){
449     for var; do
450         enabled $var && continue
451         eval sel="\$${var}_select"
452         eval sgs="\$${var}_suggest"
453         pushvar var sgs
454         enable_deep $sel
455         popvar sgs
456         enable_deep_weak $sgs
457         popvar var
458     done
459 }
460
461 enable_deep(){
462     do_enable_deep $*
463     enable $*
464 }
465
466 enable_deep_weak(){
467     do_enable_deep $*
468     enable_weak $*
469 }
470
471 enabled(){
472     test "${1#!}" = "$1" && op== || op=!=
473     eval test "x\$${1#!}" $op "xyes"
474 }
475
476 disabled(){
477     test "${1#!}" = "$1" && op== || op=!=
478     eval test "x\$${1#!}" $op "xno"
479 }
480
481 enabled_all(){
482     for opt; do
483         enabled $opt || return 1
484     done
485 }
486
487 disabled_all(){
488     for opt; do
489         disabled $opt || return 1
490     done
491 }
492
493 enabled_any(){
494     for opt; do
495         enabled $opt && return 0
496     done
497 }
498
499 disabled_any(){
500     for opt; do
501         disabled $opt && return 0
502     done
503     return 1
504 }
505
506 set_default(){
507     for opt; do
508         eval : \${$opt:=\$${opt}_default}
509     done
510 }
511
512 is_in(){
513     value=$1
514     shift
515     for var in $*; do
516         [ $var = $value ] && return 0
517     done
518     return 1
519 }
520
521 check_deps(){
522     for cfg; do
523         cfg="${cfg#!}"
524         enabled ${cfg}_checking && die "Circular dependency for $cfg."
525         disabled ${cfg}_checking && continue
526         enable ${cfg}_checking
527
528         eval dep_all="\$${cfg}_deps"
529         eval dep_any="\$${cfg}_deps_any"
530         eval dep_sel="\$${cfg}_select"
531         eval dep_sgs="\$${cfg}_suggest"
532         eval dep_ifa="\$${cfg}_if"
533         eval dep_ifn="\$${cfg}_if_any"
534
535         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
536         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
537         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
538
539         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
540         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
541         enabled_all  $dep_all || disable $cfg
542         enabled_any  $dep_any || disable $cfg
543         disabled_any $dep_sel && disable $cfg
544
545         if enabled $cfg; then
546             eval dep_extralibs="\$${cfg}_extralibs"
547             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
548             enable_deep $dep_sel
549             enable_deep_weak $dep_sgs
550         fi
551
552         disable ${cfg}_checking
553     done
554 }
555
556 print_config_h(){
557     enabled $1 && v=1 || v=0
558     echo "#define $2 $v"
559 }
560
561 print_config_mak(){
562     enabled $1 && v= || v=!
563     echo "$v$2=yes"
564 }
565
566 print_config_asm(){
567     enabled $1 && v=1 || v=0
568     echo "%define $2 $v"
569 }
570
571 print_config(){
572     pfx=$1
573     files=$2
574     shift 2
575     for cfg; do
576         ucname="$(toupper $cfg)"
577         for f in $files; do
578             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
579         done
580     done
581 }
582
583 print_enabled(){
584     test "$1" = -n && end=" " && shift || end="\n"
585     suf=$1
586     shift
587     for v; do
588         enabled $v && printf "%s$end" ${v%$suf};
589     done
590 }
591
592 append(){
593     var=$1
594     shift
595     eval "$var=\"\$$var $*\""
596 }
597
598 prepend(){
599     var=$1
600     shift
601     eval "$var=\"$* \$$var\""
602 }
603
604 add_cppflags(){
605     append CPPFLAGS $($filter_cppflags "$@")
606 }
607
608 add_cflags(){
609     append CFLAGS $($filter_cflags "$@")
610 }
611
612 add_cxxflags(){
613     append CXXFLAGS $($filter_cflags "$@")
614 }
615
616 add_asflags(){
617     append ASFLAGS $($filter_asflags "$@")
618 }
619
620 add_ldflags(){
621     append LDFLAGS "$@"
622 }
623
624 add_extralibs(){
625     prepend extralibs "$@"
626 }
627
628 check_cmd(){
629     log "$@"
630     "$@" >> $logfile 2>&1
631 }
632
633 check_cc(){
634     log check_cc "$@"
635     cat > $TMPC
636     log_file $TMPC
637     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
638 }
639
640 check_cxx(){
641     log check_cxx "$@"
642     cat > $TMPCPP
643     log_file $TMPCPP
644     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
645 }
646
647 check_cpp(){
648     log check_cpp "$@"
649     cat > $TMPC
650     log_file $TMPC
651     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
652 }
653
654 check_as(){
655     log check_as "$@"
656     cat > $TMPC
657     log_file $TMPC
658     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
659 }
660
661 check_asm(){
662     log check_asm "$@"
663     name="$1"
664     code="$2"
665     shift 2
666     disable $name
667     check_as "$@" <<EOF && enable $name
668 void foo(void){ __asm__ volatile($code); }
669 EOF
670 }
671
672 check_yasm(){
673     log check_yasm "$@"
674     echo "$1" > $TMPS
675     log_file $TMPS
676     shift 1
677     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
678 }
679
680 check_ld(){
681     log check_ld "$@"
682     type=$1
683     shift 1
684     flags=''
685     libs=''
686     for f; do
687         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
688     done
689     check_$type $($filter_cflags $flags) || return
690     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
691 }
692
693 check_cppflags(){
694     log check_cppflags "$@"
695     set -- $($filter_cppflags "$@")
696     check_cc "$@" <<EOF && append CPPFLAGS "$@"
697 int x;
698 EOF
699 }
700
701 check_cflags(){
702     log check_cflags "$@"
703     set -- $($filter_cflags "$@")
704     check_cc "$@" <<EOF && append CFLAGS "$@"
705 int x;
706 EOF
707 }
708
709 check_cxxflags(){
710     log check_cxxflags "$@"
711     set -- $($filter_cflags "$@")
712     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
713 int x;
714 EOF
715 }
716
717 test_ldflags(){
718     log test_ldflags "$@"
719     check_ld "cc" "$@" <<EOF
720 int main(void){ return 0; }
721 EOF
722 }
723
724 check_ldflags(){
725     log check_ldflags "$@"
726     test_ldflags "$@" && add_ldflags "$@"
727 }
728
729 check_header(){
730     log check_header "$@"
731     header=$1
732     shift
733     disable_safe $header
734     check_cpp "$@" <<EOF && enable_safe $header
735 #include <$header>
736 int x;
737 EOF
738 }
739
740 check_func(){
741     log check_func "$@"
742     func=$1
743     shift
744     disable $func
745     check_ld "cc" "$@" <<EOF && enable $func
746 extern int $func();
747 int main(void){ $func(); }
748 EOF
749 }
750
751 check_mathfunc(){
752     log check_mathfunc "$@"
753     func=$1
754     shift
755     disable $func
756     check_ld "cc" "$@" <<EOF && enable $func
757 #include <math.h>
758 float foo(float f) { return $func(f); }
759 int main(void){ return (int) foo; }
760 EOF
761 }
762
763 check_func_headers(){
764     log check_func_headers "$@"
765     headers=$1
766     funcs=$2
767     shift 2
768     {
769         for hdr in $headers; do
770             echo "#include <$hdr>"
771         done
772         for func in $funcs; do
773             echo "long check_$func(void) { return (long) $func; }"
774         done
775         echo "int main(void) { return 0; }"
776     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
777 }
778
779 check_class_headers_cpp(){
780     log check_class_headers_cpp "$@"
781     headers=$1
782     classes=$2
783     shift 2
784     {
785         for hdr in $headers; do
786             echo "#include <$hdr>"
787         done
788         echo "int main(void) { "
789         i=1
790         for class in $classes; do
791             echo "$class obj$i;"
792             i=$(expr $i + 1)
793         done
794         echo "return 0; }"
795     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
796 }
797
798 check_cpp_condition(){
799     log check_cpp_condition "$@"
800     header=$1
801     condition=$2
802     shift 2
803     check_cpp $($filter_cppflags "$@") <<EOF
804 #include <$header>
805 #if !($condition)
806 #error "unsatisfied condition: $condition"
807 #endif
808 EOF
809 }
810
811 check_lib(){
812     log check_lib "$@"
813     header="$1"
814     func="$2"
815     shift 2
816     check_header $header && check_func $func "$@" && add_extralibs "$@"
817 }
818
819 check_lib2(){
820     log check_lib2 "$@"
821     headers="$1"
822     funcs="$2"
823     shift 2
824     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
825 }
826
827 check_lib_cpp(){
828     log check_lib_cpp "$@"
829     headers="$1"
830     classes="$2"
831     shift 2
832     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
833 }
834
835 check_pkg_config(){
836     log check_pkg_config "$@"
837     pkg="$1"
838     headers="$2"
839     funcs="$3"
840     shift 3
841     $pkg_config --exists $pkg 2>/dev/null || return
842     pkg_cflags=$($pkg_config --cflags $pkg)
843     pkg_libs=$($pkg_config --libs $pkg)
844     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
845         set_safe ${pkg}_cflags $pkg_cflags   &&
846         set_safe ${pkg}_libs   $pkg_libs
847 }
848
849 check_exec(){
850     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
851 }
852
853 check_exec_crash(){
854     code=$(cat)
855
856     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
857     # are safe but may not be available everywhere.  Thus we use
858     # raise(SIGTERM) instead.  The check is run in a subshell so we
859     # can redirect the "Terminated" message from the shell.  SIGBUS
860     # is not defined by standard C so it is used conditionally.
861
862     (check_exec "$@") >> $logfile 2>&1 <<EOF
863 #include <signal.h>
864 static void sighandler(int sig){
865     raise(SIGTERM);
866 }
867 int func(void){
868     $code
869 }
870 int (*func_ptr)(void) = func;
871 int main(void){
872     signal(SIGILL, sighandler);
873     signal(SIGFPE, sighandler);
874     signal(SIGSEGV, sighandler);
875 #ifdef SIGBUS
876     signal(SIGBUS, sighandler);
877 #endif
878     return func_ptr();
879 }
880 EOF
881 }
882
883 check_type(){
884     log check_type "$@"
885     headers=$1
886     type=$2
887     shift 2
888     disable_safe "$type"
889     incs=""
890     for hdr in $headers; do
891         incs="$incs
892 #include <$hdr>"
893     done
894     check_cc "$@" <<EOF && enable_safe "$type"
895 $incs
896 $type v;
897 EOF
898 }
899
900 check_struct(){
901     log check_type "$@"
902     headers=$1
903     struct=$2
904     member=$3
905     shift 3
906     disable_safe "${struct}_${member}"
907     incs=""
908     for hdr in $headers; do
909         incs="$incs
910 #include <$hdr>"
911     done
912     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
913 $incs
914 const void *p = &(($struct *)0)->$member;
915 EOF
916 }
917
918 require(){
919     name="$1"
920     header="$2"
921     func="$3"
922     shift 3
923     check_lib $header $func "$@" || die "ERROR: $name not found"
924 }
925
926 require2(){
927     name="$1"
928     headers="$2"
929     func="$3"
930     shift 3
931     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
932 }
933
934 require_cpp(){
935     name="$1"
936     headers="$2"
937     classes="$3"
938     shift 3
939     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
940 }
941
942 require_pkg_config(){
943     pkg="$1"
944     check_pkg_config "$@" || die "ERROR: $pkg not found"
945     add_cflags    $(get_safe ${pkg}_cflags)
946     add_extralibs $(get_safe ${pkg}_libs)
947 }
948
949 check_host_cc(){
950     log check_host_cc "$@"
951     cat > $TMPC
952     log_file $TMPC
953     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
954 }
955
956 check_host_cflags(){
957     log check_host_cflags "$@"
958     check_host_cc "$@" <<EOF && append host_cflags "$@"
959 int x;
960 EOF
961 }
962
963 apply(){
964     file=$1
965     shift
966     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
967 }
968
969 cp_if_changed(){
970     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
971     mkdir -p "$(dirname $2)"
972     cp -f "$1" "$2"
973 }
974
975 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
976 # system-dependent things.
977
978 COMPONENT_LIST="
979     bsfs
980     decoders
981     demuxers
982     encoders
983     filters
984     hwaccels
985     indevs
986     muxers
987     outdevs
988     parsers
989     protocols
990 "
991
992 PROGRAM_LIST="
993     ffplay
994     ffprobe
995     ffserver
996     ffmpeg
997 "
998
999 CONFIG_LIST="
1000     $COMPONENT_LIST
1001     $PROGRAM_LIST
1002     avplay
1003     avprobe
1004     avserver
1005     aandct
1006     ac3dsp
1007     avcodec
1008     avdevice
1009     avfilter
1010     avformat
1011     avisynth
1012     bzlib
1013     crystalhd
1014     dct
1015     doc
1016     dwt
1017     dxva2
1018     fastdiv
1019     fft
1020     frei0r
1021     gnutls
1022     golomb
1023     gpl
1024     gray
1025     h264chroma
1026     h264dsp
1027     h264pred
1028     hardcoded_tables
1029     huffman
1030     libaacplus
1031     libass
1032     libbluray
1033     libcdio
1034     libcelt
1035     libdc1394
1036     libdirac
1037     libfaac
1038     libfreetype
1039     libgsm
1040     libmodplug
1041     libmp3lame
1042     libnut
1043     libopencore_amrnb
1044     libopencore_amrwb
1045     libopencv
1046     libopenjpeg
1047     libpulse
1048     librtmp
1049     libschroedinger
1050     libspeex
1051     libstagefright_h264
1052     libtheora
1053     libutvideo
1054     libv4l2
1055     libvo_aacenc
1056     libvo_amrwbenc
1057     libvorbis
1058     libvpx
1059     libx264
1060     libxavs
1061     libxvid
1062     lpc
1063     lsp
1064     mdct
1065     memalign_hack
1066     mpegaudiodsp
1067     network
1068     nonfree
1069     openal
1070     openssl
1071     pic
1072     postproc
1073     rdft
1074     rtpdec
1075     runtime_cpudetect
1076     safe_bitstream_reader
1077     shared
1078     sinewin
1079     small
1080     sram
1081     static
1082     swresample
1083     swscale
1084     swscale_alpha
1085     thumb
1086     vaapi
1087     vda
1088     vdpau
1089     version3
1090     xmm_clobber_test
1091     x11grab
1092     zlib
1093 "
1094
1095 THREADS_LIST='
1096     pthreads
1097     w32threads
1098     os2threads
1099 '
1100
1101 ARCH_LIST='
1102     alpha
1103     arm
1104     avr32
1105     avr32_ap
1106     avr32_uc
1107     bfin
1108     ia64
1109     m68k
1110     mips
1111     mips64
1112     parisc
1113     ppc
1114     ppc64
1115     s390
1116     sh4
1117     sparc
1118     sparc64
1119     tomi
1120     x86
1121     x86_32
1122     x86_64
1123 '
1124
1125 ARCH_EXT_LIST='
1126     altivec
1127     amd3dnow
1128     amd3dnowext
1129     armv5te
1130     armv6
1131     armv6t2
1132     armvfp
1133     avx
1134     mmi
1135     mmx
1136     mmx2
1137     neon
1138     ppc4xx
1139     sse
1140     ssse3
1141     vfpv3
1142     vis
1143 '
1144
1145 HAVE_LIST_PUB='
1146     bigendian
1147     fast_unaligned
1148 '
1149
1150 HAVE_LIST="
1151     $ARCH_EXT_LIST
1152     $HAVE_LIST_PUB
1153     $THREADS_LIST
1154     aligned_stack
1155     alsa_asoundlib_h
1156     altivec_h
1157     arpa_inet_h
1158     asm_mod_y
1159     asm_types_h
1160     attribute_may_alias
1161     attribute_packed
1162     cbrtf
1163     closesocket
1164     cmov
1165     dcbzl
1166     dev_bktr_ioctl_bt848_h
1167     dev_bktr_ioctl_meteor_h
1168     dev_ic_bt8xx_h
1169     dev_video_bktr_ioctl_bt848_h
1170     dev_video_meteor_ioctl_meteor_h
1171     dlfcn_h
1172     dlopen
1173     dos_paths
1174     ebp_available
1175     ebx_available
1176     exp2
1177     exp2f
1178     fast_64bit
1179     fast_clz
1180     fast_cmov
1181     fcntl
1182     fork
1183     getaddrinfo
1184     gethrtime
1185     GetProcessAffinityMask
1186     GetProcessMemoryInfo
1187     GetProcessTimes
1188     getrusage
1189     gnu_as
1190     ibm_asm
1191     inet_aton
1192     inline_asm
1193     isatty
1194     kbhit
1195     ldbrx
1196     libdc1394_1
1197     libdc1394_2
1198     llrint
1199     llrintf
1200     local_aligned_16
1201     local_aligned_8
1202     localtime_r
1203     log2
1204     log2f
1205     loongson
1206     lrint
1207     lrintf
1208     lzo1x_999_compress
1209     machine_ioctl_bt848_h
1210     machine_ioctl_meteor_h
1211     makeinfo
1212     malloc_h
1213     MapViewOfFile
1214     memalign
1215     mkstemp
1216     mmap
1217     PeekNamedPipe
1218     poll_h
1219     posix_memalign
1220     round
1221     roundf
1222     sched_getaffinity
1223     sdl
1224     sdl_video_size
1225     setmode
1226     setrlimit
1227     sndio_h
1228     socklen_t
1229     soundcard_h
1230     strerror_r
1231     strptime
1232     struct_addrinfo
1233     struct_ipv6_mreq
1234     struct_rusage_ru_maxrss
1235     struct_sockaddr_in6
1236     struct_sockaddr_sa_len
1237     struct_sockaddr_storage
1238     struct_v4l2_frmivalenum_discrete
1239     symver
1240     symver_asm_label
1241     symver_gnu_asm
1242     sysconf
1243     sysctl
1244     sys_mman_h
1245     sys_param_h
1246     sys_resource_h
1247     sys_select_h
1248     sys_soundcard_h
1249     sys_videoio_h
1250     termios_h
1251     threads
1252     trunc
1253     truncf
1254     vfp_args
1255     VirtualAlloc
1256     winsock2_h
1257     xform_asm
1258     xmm_clobbers
1259     yasm
1260 "
1261
1262 # options emitted with CONFIG_ prefix but not available on command line
1263 CONFIG_EXTRA="
1264     avutil
1265     gplv3
1266     lgplv3
1267 "
1268
1269 CMDLINE_SELECT="
1270     $ARCH_EXT_LIST
1271     $CONFIG_LIST
1272     $THREADS_LIST
1273     asm
1274     coverage
1275     cross_compile
1276     debug
1277     extra_warnings
1278     logging
1279     optimizations
1280     stripping
1281     symver
1282     yasm
1283 "
1284
1285 PATHS_LIST='
1286     bindir
1287     datadir
1288     incdir
1289     libdir
1290     mandir
1291     prefix
1292     shlibdir
1293 '
1294
1295 CMDLINE_SET="
1296     $PATHS_LIST
1297     ar
1298     arch
1299     as
1300     build_suffix
1301     cc
1302     cpu
1303     cross_prefix
1304     cxx
1305     dep_cc
1306     extra_version
1307     host_cc
1308     host_cflags
1309     host_ldflags
1310     host_libs
1311     host_os
1312     install
1313     ld
1314     logfile
1315     malloc_prefix
1316     nm
1317     optflags
1318     pkg_config
1319     postproc_version
1320     progs_suffix
1321     samples
1322     strip
1323     sysinclude
1324     sysroot
1325     target_exec
1326     target_os
1327     target_path
1328     valgrind
1329     yasmexe
1330 "
1331
1332 CMDLINE_APPEND="
1333     extra_cflags
1334     extra_cxxflags
1335 "
1336
1337 # code dependency declarations
1338
1339 # architecture extensions
1340
1341 armv5te_deps="arm"
1342 armv6_deps="arm"
1343 armv6t2_deps="arm"
1344 armvfp_deps="arm"
1345 neon_deps="arm"
1346 vfpv3_deps="armvfp"
1347
1348 mmi_deps="mips"
1349
1350 altivec_deps="ppc"
1351 ppc4xx_deps="ppc"
1352
1353 vis_deps="sparc"
1354
1355 x86_64_suggest="cmov fast_cmov"
1356 amd3dnow_deps="mmx"
1357 amd3dnowext_deps="amd3dnow"
1358 mmx_deps="x86"
1359 mmx2_deps="mmx"
1360 sse_deps="mmx"
1361 ssse3_deps="sse"
1362 avx_deps="ssse3"
1363
1364 aligned_stack_if_any="ppc x86"
1365 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1366 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1367 fast_unaligned_if_any="armv6 ppc x86"
1368
1369 inline_asm_deps="!tms470"
1370 need_memalign="altivec neon sse"
1371
1372 symver_if_any="symver_asm_label symver_gnu_asm"
1373
1374 # subsystems
1375 dct_select="rdft"
1376 mdct_select="fft"
1377 rdft_select="fft"
1378 mpegaudiodsp_select="dct"
1379
1380 # decoders / encoders / hardware accelerators
1381 aac_decoder_select="mdct sinewin"
1382 aac_encoder_select="mdct sinewin"
1383 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1384 ac3_decoder_select="mdct ac3dsp ac3_parser"
1385 ac3_encoder_select="mdct ac3dsp"
1386 ac3_fixed_encoder_select="mdct ac3dsp"
1387 alac_encoder_select="lpc"
1388 amrnb_decoder_select="lsp"
1389 amrwb_decoder_select="lsp"
1390 atrac1_decoder_select="mdct sinewin"
1391 atrac3_decoder_select="mdct"
1392 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1393 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1394 cavs_decoder_select="golomb"
1395 cook_decoder_select="mdct sinewin"
1396 cscd_decoder_suggest="zlib"
1397 dca_decoder_select="mdct"
1398 dnxhd_encoder_select="aandct"
1399 dxa_decoder_select="zlib"
1400 eac3_decoder_select="ac3_decoder"
1401 eac3_encoder_select="mdct ac3dsp"
1402 eamad_decoder_select="aandct"
1403 eatgq_decoder_select="aandct"
1404 eatqi_decoder_select="aandct"
1405 ffv1_decoder_select="golomb"
1406 flac_decoder_select="golomb"
1407 flac_encoder_select="golomb lpc"
1408 flashsv_decoder_select="zlib"
1409 flashsv_encoder_select="zlib"
1410 flashsv2_encoder_select="zlib"
1411 flashsv2_decoder_select="zlib"
1412 flv_decoder_select="h263_decoder"
1413 flv_encoder_select="h263_encoder"
1414 fraps_decoder_select="huffman"
1415 h261_encoder_select="aandct"
1416 h263_decoder_select="h263_parser"
1417 h263_encoder_select="aandct"
1418 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1419 h263i_decoder_select="h263_decoder"
1420 h263p_encoder_select="h263_encoder"
1421 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1422 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1423 h264_dxva2_hwaccel_deps="dxva2api_h"
1424 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1425 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1426 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1427 h264_vda_hwaccel_select="vda h264_decoder"
1428 h264_vdpau_decoder_select="vdpau h264_decoder"
1429 imc_decoder_select="fft mdct sinewin"
1430 jpegls_decoder_select="golomb"
1431 jpegls_encoder_select="golomb"
1432 ljpeg_encoder_select="aandct"
1433 loco_decoder_select="golomb"
1434 mjpeg_encoder_select="aandct"
1435 mlp_decoder_select="mlp_parser"
1436 mp1_decoder_select="mpegaudiodsp"
1437 mp1float_decoder_select="mpegaudiodsp"
1438 mp2_decoder_select="mpegaudiodsp"
1439 mp2float_decoder_select="mpegaudiodsp"
1440 mp3_decoder_select="mpegaudiodsp"
1441 mp3adu_decoder_select="mpegaudiodsp"
1442 mp3adufloat_decoder_select="mpegaudiodsp"
1443 mp3float_decoder_select="mpegaudiodsp"
1444 mp3on4_decoder_select="mpegaudiodsp"
1445 mp3on4float_decoder_select="mpegaudiodsp"
1446 mpc7_decoder_select="mpegaudiodsp"
1447 mpc8_decoder_select="mpegaudiodsp"
1448 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1449 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1450 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1451 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1452 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1453 mpeg1video_encoder_select="aandct"
1454 mpeg2_crystalhd_decoder_select="crystalhd"
1455 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1456 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1457 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1458 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1459 mpeg2video_encoder_select="aandct"
1460 mpeg4_crystalhd_decoder_select="crystalhd"
1461 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1462 mpeg4_encoder_select="h263_encoder"
1463 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1464 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1465 msmpeg4_crystalhd_decoder_select="crystalhd"
1466 msmpeg4v1_decoder_select="h263_decoder"
1467 msmpeg4v1_encoder_select="h263_encoder"
1468 msmpeg4v2_decoder_select="h263_decoder"
1469 msmpeg4v2_encoder_select="h263_encoder"
1470 msmpeg4v3_decoder_select="h263_decoder"
1471 msmpeg4v3_encoder_select="h263_encoder"
1472 nellymoser_decoder_select="mdct sinewin"
1473 nellymoser_encoder_select="mdct sinewin"
1474 png_decoder_select="zlib"
1475 png_encoder_select="zlib"
1476 qcelp_decoder_select="lsp"
1477 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1478 ra_144_encoder_select="lpc"
1479 rv10_decoder_select="h263_decoder"
1480 rv10_encoder_select="h263_encoder"
1481 rv20_decoder_select="h263_decoder"
1482 rv20_encoder_select="h263_encoder"
1483 rv30_decoder_select="golomb h264chroma h264pred"
1484 rv40_decoder_select="golomb h264chroma h264pred"
1485 shorten_decoder_select="golomb"
1486 sipr_decoder_select="lsp"
1487 snow_decoder_select="dwt"
1488 snow_encoder_select="aandct dwt"
1489 sonic_decoder_select="golomb"
1490 sonic_encoder_select="golomb"
1491 sonic_ls_encoder_select="golomb"
1492 svq1_encoder_select="aandct"
1493 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1494 svq3_decoder_suggest="zlib"
1495 theora_decoder_select="vp3_decoder"
1496 tiff_decoder_suggest="zlib"
1497 tiff_encoder_suggest="zlib"
1498 truehd_decoder_select="mlp_decoder"
1499 tscc_decoder_select="zlib"
1500 twinvq_decoder_select="mdct lsp sinewin"
1501 vc1_crystalhd_decoder_select="crystalhd"
1502 vc1_decoder_select="h263_decoder h264chroma"
1503 vc1_dxva2_hwaccel_deps="dxva2api_h"
1504 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1505 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1506 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1507 vc1image_decoder_select="vc1_decoder"
1508 vorbis_decoder_select="mdct"
1509 vorbis_encoder_select="mdct"
1510 vp6_decoder_select="huffman"
1511 vp6a_decoder_select="vp6_decoder"
1512 vp6f_decoder_select="vp6_decoder"
1513 vp8_decoder_select="h264pred"
1514 wmapro_decoder_select="mdct sinewin"
1515 wmav1_decoder_select="mdct sinewin"
1516 wmav1_encoder_select="mdct sinewin"
1517 wmav2_decoder_select="mdct sinewin"
1518 wmav2_encoder_select="mdct sinewin"
1519 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1520 wmv1_decoder_select="h263_decoder"
1521 wmv1_encoder_select="h263_encoder"
1522 wmv2_decoder_select="h263_decoder"
1523 wmv2_encoder_select="h263_encoder"
1524 wmv3_decoder_select="vc1_decoder"
1525 wmv3_crystalhd_decoder_select="crystalhd"
1526 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1527 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1528 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1529 wmv3image_decoder_select="wmv3_decoder"
1530 zlib_decoder_select="zlib"
1531 zlib_encoder_select="zlib"
1532 zmbv_decoder_select="zlib"
1533 zmbv_encoder_select="zlib"
1534
1535 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1536 vaapi_deps="va_va_h"
1537 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1538 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1539
1540 # parsers
1541 h264_parser_select="golomb h264chroma h264dsp h264pred"
1542
1543 # external libraries
1544 libaacplus_encoder_deps="libaacplus"
1545 libcelt_decoder_deps="libcelt"
1546 libdirac_decoder_deps="libdirac !libschroedinger"
1547 libfaac_encoder_deps="libfaac"
1548 libgsm_decoder_deps="libgsm"
1549 libgsm_encoder_deps="libgsm"
1550 libgsm_ms_decoder_deps="libgsm"
1551 libgsm_ms_encoder_deps="libgsm"
1552 libmodplug_demuxer_deps="libmodplug"
1553 libmp3lame_encoder_deps="libmp3lame"
1554 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1555 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1556 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1557 libopenjpeg_decoder_deps="libopenjpeg"
1558 libopenjpeg_encoder_deps="libopenjpeg"
1559 libschroedinger_decoder_deps="libschroedinger"
1560 libschroedinger_encoder_deps="libschroedinger"
1561 libspeex_decoder_deps="libspeex"
1562 libspeex_encoder_deps="libspeex"
1563 libstagefright_h264_decoder_deps="libstagefright_h264"
1564 libtheora_encoder_deps="libtheora"
1565 libvo_aacenc_encoder_deps="libvo_aacenc"
1566 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1567 libvorbis_encoder_deps="libvorbis"
1568 libvpx_decoder_deps="libvpx"
1569 libvpx_encoder_deps="libvpx"
1570 libx264_encoder_deps="libx264"
1571 libx264rgb_encoder_deps="libx264"
1572 libxavs_encoder_deps="libxavs"
1573 libxvid_encoder_deps="libxvid"
1574 libutvideo_decoder_deps="libutvideo"
1575 libutvideo_encoder_deps="libutvideo"
1576
1577 # demuxers / muxers
1578 ac3_demuxer_select="ac3_parser"
1579 asf_stream_muxer_select="asf_muxer"
1580 avisynth_demuxer_deps="avisynth"
1581 dirac_demuxer_select="dirac_parser"
1582 eac3_demuxer_select="ac3_parser"
1583 flac_demuxer_select="flac_parser"
1584 ipod_muxer_select="mov_muxer"
1585 libnut_demuxer_deps="libnut"
1586 libnut_muxer_deps="libnut"
1587 matroska_audio_muxer_select="matroska_muxer"
1588 matroska_demuxer_suggest="zlib bzlib"
1589 mov_demuxer_suggest="zlib"
1590 mp3_demuxer_select="mpegaudio_parser"
1591 mp4_muxer_select="mov_muxer"
1592 mpegtsraw_demuxer_select="mpegts_demuxer"
1593 mxf_d10_muxer_select="mxf_muxer"
1594 ogg_demuxer_select="golomb"
1595 psp_muxer_select="mov_muxer"
1596 rtp_demuxer_select="sdp_demuxer"
1597 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1598 rtsp_demuxer_select="http_protocol rtpdec"
1599 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1600 sap_demuxer_select="sdp_demuxer"
1601 sap_muxer_select="rtp_muxer rtp_protocol"
1602 sdp_demuxer_select="rtpdec"
1603 spdif_muxer_select="aac_parser"
1604 tg2_muxer_select="mov_muxer"
1605 tgp_muxer_select="mov_muxer"
1606 w64_demuxer_deps="wav_demuxer"
1607
1608 # indevs / outdevs
1609 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1610 alsa_outdev_deps="alsa_asoundlib_h"
1611 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1612 dshow_indev_deps="IBaseFilter"
1613 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1614 dv1394_indev_deps="dv1394 dv_demuxer"
1615 fbdev_indev_deps="linux_fb_h"
1616 jack_indev_deps="jack_jack_h sem_timedwait"
1617 lavfi_indev_deps="avfilter"
1618 libcdio_indev_deps="libcdio"
1619 libdc1394_indev_deps="libdc1394"
1620 libv4l2_indev_deps="libv4l2"
1621 openal_indev_deps="openal"
1622 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1623 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1624 pulse_indev_deps="libpulse"
1625 sdl_outdev_deps="sdl"
1626 sndio_indev_deps="sndio_h"
1627 sndio_outdev_deps="sndio_h"
1628 v4l_indev_deps="linux_videodev_h"
1629 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1630 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1631 vfwcap_indev_extralibs="-lavicap32"
1632 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1633 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1634
1635 # protocols
1636 bluray_protocol_deps="libbluray"
1637 gopher_protocol_deps="network"
1638 httpproxy_protocol_deps="network"
1639 httpproxy_protocol_select="tcp_protocol"
1640 http_protocol_deps="network"
1641 http_protocol_select="tcp_protocol"
1642 https_protocol_select="tls_protocol"
1643 librtmp_protocol_deps="librtmp"
1644 librtmpe_protocol_deps="librtmp"
1645 librtmps_protocol_deps="librtmp"
1646 librtmpt_protocol_deps="librtmp"
1647 librtmpte_protocol_deps="librtmp"
1648 mmsh_protocol_select="http_protocol"
1649 mmst_protocol_deps="network"
1650 rtmp_protocol_deps="!librtmp_protocol"
1651 rtmp_protocol_select="tcp_protocol"
1652 rtp_protocol_select="udp_protocol"
1653 tcp_protocol_deps="network"
1654 tls_protocol_deps_any="openssl gnutls"
1655 tls_protocol_select="tcp_protocol"
1656 udp_protocol_deps="network"
1657
1658 # filters
1659 aconvert_filter_deps="swresample"
1660 amovie_filter_deps="avcodec avformat"
1661 aresample_filter_deps="swresample"
1662 ass_filter_deps="libass"
1663 blackframe_filter_deps="gpl"
1664 boxblur_filter_deps="gpl"
1665 cropdetect_filter_deps="gpl"
1666 delogo_filter_deps="gpl"
1667 drawtext_filter_deps="libfreetype"
1668 frei0r_filter_deps="frei0r dlopen"
1669 frei0r_src_filter_deps="frei0r dlopen"
1670 hqdn3d_filter_deps="gpl"
1671 movie_filter_deps="avcodec avformat"
1672 mp_filter_deps="gpl avcodec swscale postproc"
1673 mptestsrc_filter_deps="gpl"
1674 negate_filter_deps="lut_filter"
1675 ocv_filter_deps="libopencv"
1676 pan_filter_deps="swresample"
1677 scale_filter_deps="swscale"
1678 tinterlace_filter_deps="gpl"
1679 yadif_filter_deps="gpl"
1680
1681 # libraries
1682 avdevice_deps="avcodec avformat"
1683 avformat_deps="avcodec"
1684 postproc_deps="gpl"
1685
1686 # programs
1687 ffplay_deps="avcodec avformat swscale swresample sdl"
1688 ffplay_select="buffersink_filter rdft"
1689 ffprobe_deps="avcodec avformat"
1690 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1691 ffserver_extralibs='$ldl'
1692 ffmpeg_deps="avcodec avformat swscale swresample"
1693 ffmpeg_select="buffersink_filter"
1694
1695 doc_deps="texi2html"
1696
1697 # tests
1698
1699 test_deps(){
1700     suf1=$1
1701     suf2=$2
1702     shift 2
1703     for v; do
1704         dep=${v%=*}
1705         tests=${v#*=}
1706         for name in ${tests}; do
1707             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1708         done
1709     done
1710 }
1711
1712 mxf_d10_test_deps="avfilter"
1713 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1714
1715 test_deps _encoder _decoder                                             \
1716     adpcm_ima_qt                                                        \
1717     adpcm_ima_wav                                                       \
1718     adpcm_ms                                                            \
1719     adpcm_swf                                                           \
1720     adpcm_yamaha=adpcm_yam                                              \
1721     alac                                                                \
1722     asv1                                                                \
1723     asv2                                                                \
1724     bmp                                                                 \
1725     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1726     dvvideo="dv dv_411 dv50"                                            \
1727     ffv1                                                                \
1728     flac                                                                \
1729     flashsv                                                             \
1730     flv                                                                 \
1731     adpcm_g726=g726                                                     \
1732     gif                                                                 \
1733     h261                                                                \
1734     h263="h263 h263p"                                                   \
1735     huffyuv                                                             \
1736     jpegls                                                              \
1737     mjpeg="jpg mjpeg ljpeg"                                             \
1738     mp2                                                                 \
1739     mpeg1video="mpeg mpeg1b"                                            \
1740     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1741     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1742     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1743     mpeg4="mpeg4thread error rc"                                        \
1744     msmpeg4v3=msmpeg4                                                   \
1745     msmpeg4v2                                                           \
1746     pbm=pbmpipe                                                         \
1747     pcx                                                                 \
1748     pgm="pgm pgmpipe"                                                   \
1749     png                                                                 \
1750     ppm="ppm ppmpipe"                                                   \
1751     rawvideo="rgb yuv"                                                  \
1752     roq                                                                 \
1753     rv10                                                                \
1754     rv20                                                                \
1755     sgi                                                                 \
1756     snow="snow snowll"                                                  \
1757     svq1                                                                \
1758     targa=tga                                                           \
1759     tiff                                                                \
1760     wmav1                                                               \
1761     wmav2                                                               \
1762     wmv1                                                                \
1763     wmv2                                                                \
1764
1765 test_deps _muxer _demuxer                                               \
1766     aiff                                                                \
1767     pcm_alaw=alaw                                                       \
1768     asf                                                                 \
1769     au                                                                  \
1770     avi                                                                 \
1771     dv=dv_fmt                                                           \
1772     ffm                                                                 \
1773     flv=flv_fmt                                                         \
1774     gxf                                                                 \
1775     matroska=mkv                                                        \
1776     mmf                                                                 \
1777     mov="mov ismv"                                                      \
1778     pcm_mulaw=mulaw                                                     \
1779     mxf="mxf mxf_d10"                                                   \
1780     nut                                                                 \
1781     ogg="ogg ogg_vp3"                                                   \
1782     rawvideo=pixfmt                                                     \
1783     rm                                                                  \
1784     swf                                                                 \
1785     mpegts=ts                                                           \
1786     voc                                                                 \
1787     wav                                                                 \
1788     yuv4mpegpipe=yuv4mpeg                                               \
1789
1790 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1791 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1792
1793 # default parameters
1794
1795 logfile="config.log"
1796
1797 # installation paths
1798 prefix_default="/usr/local"
1799 bindir_default='${prefix}/bin'
1800 datadir_default='${prefix}/share/ffmpeg'
1801 incdir_default='${prefix}/include'
1802 libdir_default='${prefix}/lib'
1803 mandir_default='${prefix}/share/man'
1804 shlibdir_default="$libdir_default"
1805 postproc_version_default="current"
1806
1807 # toolchain
1808 ar_default="ar"
1809 cc_default="gcc"
1810 cxx_default="g++"
1811 cc_version=\"unknown\"
1812 host_cc_default="gcc"
1813 install="install"
1814 ln_s="ln -sf"
1815 nm_default="nm"
1816 objformat="elf"
1817 pkg_config_default=pkg-config
1818 ranlib="ranlib"
1819 strip_default="strip"
1820 yasmexe_default="yasm"
1821
1822 nm_opts='-g'
1823 nogas=":"
1824
1825 # machine
1826 arch_default=$(uname -m)
1827 cpu="generic"
1828
1829 # OS
1830 target_os_default=$(tolower $(uname -s))
1831 host_os=$target_os_default
1832
1833 # alternative libpostproc version
1834 ALT_PP_VER_MAJOR=51
1835 ALT_PP_VER_MINOR=2
1836 ALT_PP_VER_MICRO=101
1837 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1838
1839 # configurable options
1840 enable $PROGRAM_LIST
1841
1842 enable avcodec
1843 enable avdevice
1844 enable avfilter
1845 enable avformat
1846 enable avutil
1847 enable postproc
1848 enable stripping
1849 enable swresample
1850 enable swscale
1851
1852 enable asm
1853 enable debug
1854 enable doc
1855 enable fastdiv
1856 enable network
1857 enable optimizations
1858 enable safe_bitstream_reader
1859 enable static
1860 enable swscale_alpha
1861
1862 # build settings
1863 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1864 FFSERVERLDFLAGS=-Wl,-E
1865 LIBPREF="lib"
1866 LIBSUF=".a"
1867 FULLNAME='$(NAME)$(BUILDSUF)'
1868 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1869 SLIBPREF="lib"
1870 SLIBSUF=".so"
1871 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1872 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1873 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1874 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1875 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1876 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1877
1878 AS_O='-o $@'
1879 CC_O='-o $@'
1880 CXX_O='-o $@'
1881
1882 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1883 host_libs='-lm'
1884
1885 target_path='$(CURDIR)'
1886
1887 # since the object filename is not given with the -MM flag, the compiler
1888 # is only able to print the basename, and we must add the path ourselves
1889 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1890 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1891
1892 # find source path
1893 if test -f configure; then
1894     source_path=.
1895 else
1896     source_path=$(cd $(dirname "$0"); pwd)
1897     echo "$source_path" | grep -q '[[:blank:]]' &&
1898         die "Out of tree builds are impossible with whitespace in source path."
1899     test -e "$source_path/config.h" &&
1900         die "Out of tree builds are impossible with config.h in source dir."
1901 fi
1902
1903 for v in "$@"; do
1904     r=${v#*=}
1905     l=${v%"$r"}
1906     r=$(sh_quote "$r")
1907     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1908 done
1909
1910 find_things(){
1911     thing=$1
1912     pattern=$2
1913     file=$source_path/$3
1914     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1915 }
1916
1917 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1918 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1919 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1920 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1921 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1922 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1923 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1924 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1925 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1926 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1927 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1928
1929 ALL_COMPONENTS="
1930     $BSF_LIST
1931     $DECODER_LIST
1932     $DEMUXER_LIST
1933     $ENCODER_LIST
1934     $FILTER_LIST
1935     $HWACCEL_LIST
1936     $INDEV_LIST
1937     $MUXER_LIST
1938     $OUTDEV_LIST
1939     $PARSER_LIST
1940     $PROTOCOL_LIST
1941 "
1942
1943 find_tests(){
1944     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1945 }
1946
1947 ACODEC_TESTS=$(find_tests acodec)
1948 VCODEC_TESTS=$(find_tests vsynth1)
1949 LAVF_FATE_TESTS=$(find_tests lavf-fate)
1950 LAVF_TESTS=$(find_tests lavf)
1951 LAVFI_TESTS=$(find_tests lavfi)
1952 SEEK_TESTS=$(find_tests seek seek_)
1953
1954 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1955
1956 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1957
1958 for n in $COMPONENT_LIST; do
1959     v=$(toupper ${n%s})_LIST
1960     eval enable \$$v
1961     eval ${n}_if_any="\$$v"
1962 done
1963
1964 enable $ARCH_EXT_LIST $ALL_TESTS
1965
1966 die_unknown(){
1967     echo "Unknown option \"$1\"."
1968     echo "See $0 --help for available options."
1969     exit 1
1970 }
1971
1972 show_list() {
1973     suffix=_$1
1974     shift
1975     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1976     exit 0
1977 }
1978
1979 for opt do
1980     optval="${opt#*=}"
1981     case "$opt" in
1982     --extra-ldflags=*) add_ldflags $optval
1983     ;;
1984     --extra-libs=*) add_extralibs $optval
1985     ;;
1986     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1987     ;;
1988     --enable-debug=*) debuglevel="$optval"
1989     ;;
1990     --disable-everything)
1991     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1992     ;;
1993     --enable-*=*|--disable-*=*)
1994     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1995     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1996     eval list=\$$(toupper $thing)_LIST
1997     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1998     $action $(filter "$name" $list)
1999     ;;
2000     --enable-?*|--disable-?*)
2001     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2002     if is_in $option $COMPONENT_LIST; then
2003         test $action = disable && action=unset
2004         eval $action \$$(toupper ${option%s})_LIST
2005     elif is_in $option $CMDLINE_SELECT; then
2006         $action $option
2007     else
2008         die_unknown $opt
2009     fi
2010     ;;
2011     --list-*)
2012         NAME="${opt#--list-}"
2013         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2014         NAME=${NAME%s}
2015         eval show_list $NAME \$$(toupper $NAME)_LIST
2016     ;;
2017     --help|-h) show_help
2018     ;;
2019     *)
2020     optname="${opt%%=*}"
2021     optname="${optname#--}"
2022     optname=$(echo "$optname" | sed 's/-/_/g')
2023     if is_in $optname $CMDLINE_SET; then
2024         eval $optname='$optval'
2025     elif is_in $optname $CMDLINE_APPEND; then
2026         append $optname "$optval"
2027     else
2028          die_unknown $opt
2029     fi
2030     ;;
2031     esac
2032 done
2033
2034 disabled logging && logfile=/dev/null
2035
2036 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2037 set >> $logfile
2038
2039 test -n "$cross_prefix" && enable cross_compile
2040
2041 if enabled cross_compile; then
2042     test -n "$arch" && test -n "$target_os" ||
2043         die "Must specify target arch and OS when cross-compiling"
2044 fi
2045
2046 set_default arch target_os postproc_version
2047
2048 # Check if we should build alternative libpostproc version instead of current
2049 if   test "$postproc_version" = $ALT_PP_VER; then
2050   LIBPOSTPROC_VERSION=$ALT_PP_VER
2051   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2052   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2053   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2054 elif test "$postproc_version" != current; then
2055   die "Invalid argument to --postproc-version. See --help output."
2056 fi
2057
2058 ar_default="${cross_prefix}${ar_default}"
2059 cc_default="${cross_prefix}${cc_default}"
2060 cxx_default="${cross_prefix}${cxx_default}"
2061 nm_default="${cross_prefix}${nm_default}"
2062 pkg_config_default="${cross_prefix}${pkg_config_default}"
2063 ranlib="${cross_prefix}${ranlib}"
2064 strip_default="${cross_prefix}${strip_default}"
2065
2066 sysinclude_default="${sysroot}/usr/include"
2067
2068 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2069 enabled cross_compile || host_cc_default=$cc
2070 set_default host_cc
2071
2072 if ! $pkg_config --version >/dev/null 2>&1; then
2073     warn "$pkg_config not found, library detection may fail."
2074     pkg_config=false
2075 fi
2076
2077 exesuf() {
2078     case $1 in
2079         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2080     esac
2081 }
2082
2083 EXESUF=$(exesuf $target_os)
2084 HOSTEXESUF=$(exesuf $host_os)
2085
2086 # set temporary file name
2087 : ${TMPDIR:=$TEMPDIR}
2088 : ${TMPDIR:=$TMP}
2089 : ${TMPDIR:=/tmp}
2090
2091 if ! check_cmd mktemp -u XXXXXX; then
2092     # simple replacement for missing mktemp
2093     # NOT SAFE FOR GENERAL USE
2094     mktemp(){
2095         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2096     }
2097 fi
2098
2099 tmpfile(){
2100     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2101         (set -C; exec > $tmp) 2>/dev/null ||
2102         die "Unable to create temporary file in $TMPDIR."
2103     append TMPFILES $tmp
2104     eval $1=$tmp
2105 }
2106
2107 trap 'rm -f -- $TMPFILES' EXIT
2108
2109 tmpfile TMPASM .asm
2110 tmpfile TMPC   .c
2111 tmpfile TMPCPP .cpp
2112 tmpfile TMPE   $EXESUF
2113 tmpfile TMPH   .h
2114 tmpfile TMPO   .o
2115 tmpfile TMPS   .S
2116 tmpfile TMPSH  .sh
2117 tmpfile TMPV   .ver
2118
2119 unset -f mktemp
2120
2121 chmod +x $TMPE
2122
2123 # make sure we can execute files in $TMPDIR
2124 cat > $TMPSH 2>> $logfile <<EOF
2125 #! /bin/sh
2126 EOF
2127 chmod +x $TMPSH >> $logfile 2>&1
2128 if ! $TMPSH >> $logfile 2>&1; then
2129     cat <<EOF
2130 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2131 variable to another directory and make sure that it is not mounted noexec.
2132 EOF
2133     die "Sanity test failed."
2134 fi
2135
2136 filter_asflags=echo
2137 filter_cflags=echo
2138 filter_cppflags=echo
2139
2140 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2141     cc_type=llvm_gcc
2142     cc_version=__VERSION__
2143     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2144     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2145     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2146     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2147     speed_cflags='-O3'
2148     size_cflags='-Os'
2149 elif $cc -v 2>&1 | grep -qi ^gcc; then
2150     cc_type=gcc
2151     cc_version=__VERSION__
2152     gcc_version=$($cc --version | head -n1)
2153     gcc_basever=$($cc -dumpversion)
2154     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2155     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2156     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2157     if ! $cc -dumpversion | grep -q '^2\.'; then
2158         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2159         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2160     fi
2161     speed_cflags='-O3'
2162     size_cflags='-Os'
2163 elif $cc --version 2>/dev/null | grep -q Intel; then
2164     cc_type=icc
2165     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2166     cc_ident=$($cc --version | head -n1)
2167     icc_version=$($cc -dumpversion)
2168     CC_DEPFLAGS='-MMD'
2169     AS_DEPFLAGS='-MMD'
2170     speed_cflags='-O3'
2171     size_cflags='-Os'
2172     noopt_cflags='-O1'
2173 elif $cc -v 2>&1 | grep -q xlc; then
2174     cc_type=xlc
2175     cc_version="AV_STRINGIFY(__IBMC__)"
2176     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2177     speed_cflags='-O5'
2178     size_cflags='-O5 -qcompact'
2179 elif $cc -V 2>/dev/null | grep -q Compaq; then
2180     cc_type=ccc
2181     cc_version="AV_STRINGIFY(__DECC_VER)"
2182     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2183     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2184     debuglevel=3
2185     add_ldflags -Wl,-z,now # calls to libots crash without this
2186     speed_cflags='-fast'
2187     size_cflags='-O1'
2188 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2189     test -d "$sysroot" || die "No valid sysroot specified."
2190     cc_type=armcc
2191     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2192     cc_ident=$($cc --vsn | head -n1)
2193     armcc_conf="$PWD/armcc.conf"
2194     $cc --arm_linux_configure                 \
2195         --arm_linux_config_file="$armcc_conf" \
2196         --configure_sysroot="$sysroot"        \
2197         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2198         die "Error creating armcc configuration file."
2199     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2200     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2201     as_default="${cross_prefix}gcc"
2202     CC_DEPFLAGS='-MMD'
2203     AS_DEPFLAGS='-MMD'
2204     speed_cflags='-O3'
2205     size_cflags='-Os'
2206     filter_asflags="filter_out -W${armcc_opt}*"
2207 elif $cc -version 2>/dev/null | grep -q TMS470; then
2208     cc_type=tms470
2209     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2210     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2211     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2212     CC_O='-fr=$(@D)'
2213     as_default="${cross_prefix}gcc"
2214     ld_default="${cross_prefix}gcc"
2215     TMPO=$(basename $TMPC .c).o
2216     append TMPFILES $TMPO
2217     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2218     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2219     AS_DEPFLAGS='-MMD'
2220     speed_cflags='-O3 -mf=5'
2221     size_cflags='-O3 -mf=2'
2222     filter_cflags=tms470_flags
2223     tms470_flags(){
2224         for flag; do
2225             case $flag in
2226                 -march=*|-mcpu=*)
2227                     case "${flag#*=}" in
2228                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2229                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2230                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2231                         armv6*|arm11*)          echo -mv=6   ;;
2232                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2233                                                 echo -mv=5e  ;;
2234                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2235                     esac
2236                     ;;
2237                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2238                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2239                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2240                 -msoft-float)   echo --float_support=vfplib       ;;
2241                 -O[0-3]|-mf=*)  echo $flag                        ;;
2242                 -g)             echo -g -mn                       ;;
2243                 -pds=*)         echo $flag                        ;;
2244             esac
2245         done
2246     }
2247 elif $cc -v 2>&1 | grep -q clang; then
2248     cc_type=clang
2249     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2250         cc_version=__clang_version__ || cc_version=__VERSION__
2251     cc_ident=$($cc --version | head -n1)
2252     CC_DEPFLAGS='-MMD'
2253     AS_DEPFLAGS='-MMD'
2254     speed_cflags='-O3'
2255     size_cflags='-Os'
2256 elif $cc -V 2>&1 | grep -q Sun; then
2257     cc_type=suncc
2258     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2259     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2260     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2261     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2262     add_ldflags -xc99
2263     speed_cflags='-O5'
2264     size_cflags='-O5 -xspace'
2265     filter_cflags=suncc_flags
2266     suncc_flags(){
2267         for flag; do
2268             case $flag in
2269                 -march=*|-mcpu=*)
2270                     case "${flag#*=}" in
2271                         native)                   echo -xtarget=native       ;;
2272                         v9|niagara)               echo -xarch=sparc          ;;
2273                         ultrasparc)               echo -xarch=sparcvis       ;;
2274                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2275                         i586|pentium)             echo -xchip=pentium        ;;
2276                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2277                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2278                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2279                         pentium4*)          echo -xtarget=pentium4           ;;
2280                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2281                         *-sse3)             echo -xarch=sse3                 ;;
2282                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2283                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2284                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2285                         k8|opteron|athlon64|athlon-fx)
2286                                                   echo -xarch=sse2a          ;;
2287                         athlon*)                  echo -xarch=pentium_proa   ;;
2288                     esac
2289                     ;;
2290                 -std=c99)             echo -xc99              ;;
2291                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2292                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2293                 -W*,*)                echo $flag              ;;
2294                 -f*-*|-W*)                                    ;;
2295                 *)                    echo $flag              ;;
2296             esac
2297         done
2298     }
2299 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2300     cc_type=pathscale
2301     cc_version=__PATHSCALE__
2302     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2303     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2304     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2305     speed_cflags='-O2'
2306     size_cflags='-Os'
2307     filter_cflags='filter_out -Wdisabled-optimization'
2308 elif $cc -v 2>&1 | grep -q Open64; then
2309     cc_type=open64
2310     cc_version=__OPEN64__
2311     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2312     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2313     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2314     speed_cflags='-O2'
2315     size_cflags='-Os'
2316     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2317 fi
2318
2319 test -n "$cc_type" && enable $cc_type ||
2320     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2321
2322 : ${as_default:=$cc}
2323 : ${dep_cc_default:=$cc}
2324 : ${ld_default:=$cc}
2325 set_default ar as dep_cc ld
2326
2327 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2328 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2329 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2330
2331 add_cflags $extra_cflags
2332 add_cxxflags $extra_cxxflags
2333 add_asflags $extra_cflags
2334
2335 if test -n "$sysroot"; then
2336     case "$cc_type" in
2337         gcc|llvm_gcc|clang)
2338             add_cppflags --sysroot="$sysroot"
2339             add_ldflags --sysroot="$sysroot"
2340         ;;
2341         tms470)
2342             add_cppflags -I"$sysinclude"
2343             add_ldflags  --sysroot="$sysroot"
2344         ;;
2345     esac
2346 fi
2347
2348 if test "$cpu" = host; then
2349     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2350
2351     case "$cc_type" in
2352         gcc|llvm_gcc)
2353             check_native(){
2354                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2355                 sed -n "/cc1.*$1=/{
2356                             s/.*$1=\\([^ ]*\\).*/\\1/
2357                             p
2358                             q
2359                         }" $TMPE
2360             }
2361             cpu=$(check_native -march || check_native -mcpu)
2362         ;;
2363     esac
2364
2365     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2366 fi
2367
2368 # Deal with common $arch aliases
2369 case "$arch" in
2370     arm*|iPad*)
2371         arch="arm"
2372     ;;
2373     mips|mipsel|IP*)
2374         arch="mips"
2375     ;;
2376     mips64*)
2377         arch="mips"
2378         subarch="mips64"
2379     ;;
2380     parisc|hppa)
2381         arch="parisc"
2382     ;;
2383     parisc64|hppa64)
2384         arch="parisc"
2385         subarch="parisc64"
2386     ;;
2387     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2388         arch="ppc"
2389     ;;
2390     s390|s390x)
2391         arch="s390"
2392     ;;
2393     sh4|sh)
2394         arch="sh4"
2395     ;;
2396     sun4u|sparc64)
2397         arch="sparc"
2398         subarch="sparc64"
2399     ;;
2400     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2401         arch="x86"
2402     ;;
2403 esac
2404
2405 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2406 enable $arch
2407
2408 # Add processor-specific flags
2409 if test "$cpu" = generic; then
2410     : do nothing
2411 elif enabled ppc; then
2412
2413     case $(tolower $cpu) in
2414         601|ppc601|powerpc601)
2415             cpuflags="-mcpu=601"
2416             disable altivec
2417         ;;
2418         603*|ppc603*|powerpc603*)
2419             cpuflags="-mcpu=603"
2420             disable altivec
2421         ;;
2422         604*|ppc604*|powerpc604*)
2423             cpuflags="-mcpu=604"
2424             disable altivec
2425         ;;
2426         g3|75*|ppc75*|powerpc75*)
2427             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2428             disable altivec
2429         ;;
2430         g4|745*|ppc745*|powerpc745*)
2431             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2432         ;;
2433         74*|ppc74*|powerpc74*)
2434             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2435         ;;
2436         g5|970|ppc970|powerpc970|power4*)
2437             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2438         ;;
2439         cell)
2440             cpuflags="-mcpu=cell"
2441             enable ldbrx
2442         ;;
2443         e500v2)
2444             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2445             disable altivec
2446         ;;
2447         e500)
2448             cpuflags="-mcpu=8540 -mhard-float"
2449             disable altivec
2450         ;;
2451     esac
2452
2453 elif enabled x86; then
2454
2455     case $cpu in
2456         i[345]86|pentium)
2457             cpuflags="-march=$cpu"
2458             disable mmx
2459         ;;
2460         # targets that do NOT support conditional mov (cmov)
2461         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2462             cpuflags="-march=$cpu"
2463             disable cmov
2464         ;;
2465         # targets that do support conditional mov (cmov)
2466         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2467             cpuflags="-march=$cpu"
2468             enable cmov
2469             enable fast_cmov
2470         ;;
2471         # targets that do support conditional mov but on which it's slow
2472         pentium4|pentium4m|prescott|nocona)
2473             cpuflags="-march=$cpu"
2474             enable cmov
2475             disable fast_cmov
2476         ;;
2477     esac
2478
2479 elif enabled sparc; then
2480
2481     case $cpu in
2482         niagara)
2483             cpuflags="-mcpu=$cpu"
2484             disable vis
2485         ;;
2486         sparc64)
2487             cpuflags="-mcpu=v9"
2488         ;;
2489     esac
2490
2491 elif enabled arm; then
2492
2493     case $cpu in
2494         armv*)
2495             cpuflags="-march=$cpu"
2496             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2497         ;;
2498         *)
2499             cpuflags="-mcpu=$cpu"
2500             case $cpu in
2501                 cortex-a*)                               subarch=armv7a  ;;
2502                 cortex-r*)                               subarch=armv7r  ;;
2503                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2504                 arm11*)                                  subarch=armv6   ;;
2505                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2506                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2507             esac
2508         ;;
2509     esac
2510
2511 elif enabled alpha; then
2512
2513     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2514
2515 elif enabled bfin; then
2516
2517     cpuflags="-mcpu=$cpu"
2518
2519 elif enabled mips; then
2520
2521     cpuflags="-march=$cpu"
2522
2523 elif enabled avr32; then
2524
2525     case $cpu in
2526         ap7[02]0[0-2])
2527             subarch="avr32_ap"
2528             cpuflags="-mpart=$cpu"
2529         ;;
2530         ap)
2531             subarch="avr32_ap"
2532             cpuflags="-march=$cpu"
2533         ;;
2534         uc3[ab]*)
2535             subarch="avr32_uc"
2536             cpuflags="-mcpu=$cpu"
2537         ;;
2538         uc)
2539             subarch="avr32_uc"
2540             cpuflags="-march=$cpu"
2541         ;;
2542     esac
2543
2544 fi
2545
2546 add_cflags $cpuflags
2547 add_asflags $cpuflags
2548
2549 # compiler sanity check
2550 check_exec <<EOF
2551 int main(void){ return 0; }
2552 EOF
2553 if test "$?" != 0; then
2554     echo "$cc is unable to create an executable file."
2555     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2556         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2557         echo "Only do this if you know what cross compiling means."
2558     fi
2559     die "C compiler test failed."
2560 fi
2561
2562 add_cppflags -D_ISOC99_SOURCE
2563 add_cxxflags -D__STDC_CONSTANT_MACROS
2564 check_cflags -std=c99
2565 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2566 #include <stdlib.h>
2567 EOF
2568 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2569 #include <stdlib.h>
2570 EOF
2571
2572 check_host_cflags -std=c99
2573 check_host_cflags -Wall
2574
2575 case "$arch" in
2576     alpha|ia64|mips|parisc|sparc)
2577         spic=$shared
2578     ;;
2579     x86)
2580         subarch="x86_32"
2581         check_cc <<EOF && subarch="x86_64"
2582         int test[(int)sizeof(char*) - 7];
2583 EOF
2584         if test "$subarch" = "x86_64"; then
2585             spic=$shared
2586         fi
2587     ;;
2588     ppc)
2589         check_cc <<EOF && subarch="ppc64"
2590         int test[(int)sizeof(char*) - 7];
2591 EOF
2592     ;;
2593 esac
2594
2595 enable $subarch
2596 enabled spic && enable pic
2597
2598 # OS specific
2599 case $target_os in
2600     haiku)
2601         prefix_default="/boot/common"
2602         network_extralibs="-lnetwork"
2603         host_libs=
2604         ;;
2605     sunos)
2606         FFSERVERLDFLAGS=""
2607         SHFLAGS='-shared -Wl,-h,$$(@F)'
2608         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2609         network_extralibs="-lsocket -lnsl"
2610         add_cppflags -D__EXTENSIONS__
2611         # When using suncc to build, the Solaris linker will mark
2612         # an executable with each instruction set encountered by
2613         # the Solaris assembler.  As our libraries contain their own
2614         # guards for processor-specific code, instead suppress
2615         # generation of the HWCAPS ELF section on Solaris x86 only.
2616         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2617         nm_opts='-P -g'
2618         ;;
2619     netbsd)
2620         disable symver
2621         oss_indev_extralibs="-lossaudio"
2622         oss_outdev_extralibs="-lossaudio"
2623         ;;
2624     openbsd)
2625         enable malloc_aligned
2626         # On OpenBSD 4.5. the compiler does not use PIC unless
2627         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2628         # however the generated executable will not do anything
2629         # (simply quits with exit-code 1, no crash, no output).
2630         # Thus explicitly enable PIC here.
2631         enable pic
2632         disable symver
2633         SHFLAGS='-shared'
2634         oss_indev_extralibs="-lossaudio"
2635         oss_outdev_extralibs="-lossaudio"
2636         ;;
2637     dragonfly)
2638         enable malloc_aligned
2639         disable symver
2640         ;;
2641     freebsd)
2642         enable malloc_aligned
2643         ;;
2644     bsd/os)
2645         add_extralibs -lpoll -lgnugetopt
2646         strip="strip -d"
2647         ;;
2648     darwin)
2649         enable malloc_aligned
2650         gas="gas-preprocessor.pl $cc"
2651         enabled ppc && add_asflags -force_cpusubtype_ALL
2652         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2653         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2654         strip="${strip} -x"
2655         add_ldflags -Wl,-dynamic,-search_paths_first
2656         SLIBSUF=".dylib"
2657         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2658         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2659         FFSERVERLDFLAGS=-Wl,-bind_at_load
2660         objformat="macho"
2661         enabled x86_64 && objformat="macho64"
2662         enabled_any pic shared ||
2663             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2664         ;;
2665     mingw32*)
2666         if test $target_os = "mingw32ce"; then
2667             disable network
2668         else
2669             target_os=mingw32
2670         fi
2671         LIBTARGET=i386
2672         if enabled x86_64; then
2673             enable malloc_aligned
2674             LIBTARGET=x64
2675         elif enabled arm; then
2676             LIBTARGET=arm-wince
2677         fi
2678         shlibdir_default="$bindir_default"
2679         SLIBPREF=""
2680         SLIBSUF=".dll"
2681         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2682         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2683         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2684         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2685         SLIB_INSTALL_LINKS=
2686         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2687         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2688         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'
2689         objformat="win32"
2690         enable dos_paths
2691         check_cflags -fno-common
2692         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2693                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2694                 die "ERROR: MinGW runtime version must be >= 3.15."
2695         add_cppflags -U__STRICT_ANSI__
2696         ;;
2697     cygwin*)
2698         target_os=cygwin
2699         shlibdir_default="$bindir_default"
2700         SLIBPREF="cyg"
2701         SLIBSUF=".dll"
2702         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2703         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2704         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2705         objformat="win32"
2706         enable dos_paths
2707         check_cflags -fno-common
2708         add_cppflags -U__STRICT_ANSI__
2709         ;;
2710     *-dos|freedos|opendos)
2711         network_extralibs="-lsocket"
2712         objformat="coff"
2713         enable dos_paths
2714         add_cppflags -U__STRICT_ANSI__
2715         ;;
2716     linux)
2717         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2718         enable dv1394
2719         ;;
2720     irix*)
2721         target_os=irix
2722         ranlib="echo ignoring ranlib"
2723         ;;
2724     os/2*)
2725         strip="lxlite -CS"
2726         ln_s="cp -f"
2727         objformat="aout"
2728         add_cppflags -D_GNU_SOURCE
2729         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2730         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2731         FFSERVERLDFLAGS=""
2732         LIBSUF="_s.a"
2733         SLIBPREF=""
2734         SLIBSUF=".dll"
2735         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2736         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2737         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2738           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2739           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2740           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2741           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2742           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2743         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2744           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2745         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2746         enable dos_paths
2747         enable_weak os2threads
2748         ;;
2749     gnu/kfreebsd)
2750         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2751         ;;
2752     gnu)
2753         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2754         ;;
2755     qnx)
2756         add_cppflags -D_QNX_SOURCE
2757         network_extralibs="-lsocket"
2758         ;;
2759     symbian)
2760         SLIBSUF=".dll"
2761         enable dos_paths
2762         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2763         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2764         add_ldflags -Wl,--target1-abs,--no-undefined \
2765                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2766                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2767         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2768                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2769                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2770         ;;
2771     none)
2772         ;;
2773     *)
2774         die "Unknown OS '$target_os'."
2775         ;;
2776 esac
2777
2778 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2779
2780 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2781
2782 set_default $PATHS_LIST
2783
2784 # we need to build at least one lib type
2785 if ! enabled_any static shared; then
2786     cat <<EOF
2787 At least one library type must be built.
2788 Specify --enable-static to build the static libraries or --enable-shared to
2789 build the shared libraries as well. To only build the shared libraries specify
2790 --disable-static in addition to --enable-shared.
2791 EOF
2792     exit 1;
2793 fi
2794
2795 die_license_disabled() {
2796     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2797 }
2798
2799 die_license_disabled gpl libcdio
2800 die_license_disabled gpl libutvideo
2801 die_license_disabled gpl libx264
2802 die_license_disabled gpl libxavs
2803 die_license_disabled gpl libxvid
2804 die_license_disabled gpl x11grab
2805
2806 die_license_disabled nonfree libaacplus
2807 die_license_disabled nonfree libfaac
2808 die_license_disabled nonfree openssl
2809
2810 die_license_disabled version3 libopencore_amrnb
2811 die_license_disabled version3 libopencore_amrwb
2812 die_license_disabled version3 libvo_aacenc
2813 die_license_disabled version3 libvo_amrwbenc
2814
2815 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2816
2817 disabled optimizations || check_cflags -fomit-frame-pointer
2818
2819 enable_pic() {
2820     enable pic
2821     add_cppflags -DPIC
2822     add_cflags   -fPIC
2823     add_asflags  -fPIC
2824 }
2825
2826 enabled pic && enable_pic
2827
2828 check_cc <<EOF || die "Symbol mangling check failed."
2829 int ff_extern;
2830 EOF
2831 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2832 extern_prefix=${sym%%ff_extern*}
2833
2834 check_cc <<EOF && enable inline_asm
2835 void foo(void) { __asm__ volatile ("" ::); }
2836 EOF
2837
2838 _restrict=
2839 for restrict_keyword in restrict __restrict__ __restrict; do
2840     check_cc <<EOF && _restrict=$restrict_keyword && break
2841 void foo(char * $restrict_keyword p);
2842 EOF
2843 done
2844
2845 check_cc <<EOF && enable attribute_packed
2846 struct { int x; } __attribute__((packed)) x;
2847 EOF
2848
2849 check_cc <<EOF && enable attribute_may_alias
2850 union { int x; } __attribute__((may_alias)) x;
2851 EOF
2852
2853 check_cc <<EOF || die "endian test failed"
2854 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2855 EOF
2856 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2857
2858 if enabled alpha; then
2859
2860     check_cflags -mieee
2861
2862 elif enabled arm; then
2863
2864     enabled thumb && check_cflags -mthumb || check_cflags -marm
2865     nogas=die
2866
2867     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2868         enable vfp_args
2869     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2870         case "${cross_prefix:-$cc}" in
2871             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2872             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2873 __asm__ (".eabi_attribute 28, 1");
2874 int main(void) { return 0; }
2875 EOF
2876         esac
2877         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2878     fi
2879
2880     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2881     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2882     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2883     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2884     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2885     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2886
2887     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2888
2889     enabled_all armv6t2 shared !pic && enable_pic
2890
2891 elif enabled mips; then
2892
2893     check_asm loongson '"dmult.g $1, $2, $3"'
2894     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2895
2896 elif enabled ppc; then
2897
2898     enable local_aligned_8 local_aligned_16
2899
2900     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2901     check_asm ibm_asm   '"add 0, 0, 0"'
2902     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2903     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2904
2905     # AltiVec flags: The FSF version of GCC differs from the Apple version
2906     if enabled altivec; then
2907         nogas=warn
2908         check_cflags -maltivec -mabi=altivec &&
2909         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2910         check_cflags -faltivec
2911
2912         # check if our compiler supports Motorola AltiVec C API
2913         check_cc <<EOF || disable altivec
2914 $inc_altivec_h
2915 int main(void) {
2916     vector signed int v1, v2, v3;
2917     v1 = vec_add(v2,v3);
2918     return 0;
2919 }
2920 EOF
2921
2922         # check if our compiler supports braces for vector declarations
2923         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2924 $inc_altivec_h
2925 int main (void) { (vector int) {1}; return 0; }
2926 EOF
2927     fi
2928
2929 elif enabled sparc; then
2930
2931     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2932         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2933
2934 elif enabled x86; then
2935
2936     enable local_aligned_8 local_aligned_16
2937
2938     # check whether EBP is available on x86
2939     # As 'i' is stored on the stack, this program will crash
2940     # if the base pointer is used to access it because the
2941     # base pointer is cleared in the inline assembly code.
2942     check_exec_crash <<EOF && enable ebp_available
2943     volatile int i=0;
2944     __asm__ volatile (
2945         "xorl %%ebp, %%ebp"
2946     ::: "%ebp");
2947     return i;
2948 EOF
2949
2950     # check whether EBX is available on x86
2951     check_asm ebx_available '""::"b"(0)' &&
2952         check_asm ebx_available '"":::"%ebx"'
2953
2954     # check whether xmm clobbers are supported
2955     check_asm xmm_clobbers '"":::"%xmm0"'
2956
2957     # check whether binutils is new enough to compile SSSE3/MMX2
2958     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2959     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2960
2961     if ! disabled_any asm mmx yasm; then
2962         if check_cmd $yasmexe --version; then
2963             enabled x86_64 && yasm_extra="-m amd64"
2964             yasm_debug="-g dwarf2"
2965         elif check_cmd nasm -v; then
2966             yasmexe=nasm
2967             yasm_debug="-g -F dwarf"
2968             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2969         fi
2970
2971         YASMFLAGS="-f $objformat $yasm_extra"
2972         enabled pic               && append YASMFLAGS "-DPIC"
2973         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2974         case "$objformat" in
2975             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2976         esac
2977
2978         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2979             die "yasm not found, use --disable-yasm for a crippled build"
2980         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2981     fi
2982
2983     case "$cpu" in
2984         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2985             disable fast_clz
2986         ;;
2987     esac
2988
2989 fi
2990
2991 if enabled asm; then
2992     as=${gas:=$as}
2993     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2994         $nogas "GNU assembler not found, install gas-preprocessor"
2995 fi
2996
2997 check_ldflags -Wl,--as-needed
2998
2999 if check_func dlopen; then
3000     ldl=
3001 elif check_func dlopen -ldl; then
3002     ldl=-ldl
3003 fi
3004
3005 if enabled network; then
3006     check_type "sys/types.h sys/socket.h" socklen_t
3007     check_type netdb.h "struct addrinfo"
3008     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3009     check_type netinet/in.h "struct sockaddr_in6"
3010     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3011     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3012     # Prefer arpa/inet.h over winsock2
3013     if check_header arpa/inet.h ; then
3014         check_func closesocket
3015     elif check_header winsock2.h ; then
3016         check_func_headers winsock2.h closesocket -lws2 && \
3017             network_extralibs="-lws2" || \
3018         { check_func_headers winsock2.h closesocket -lws2_32 && \
3019             network_extralibs="-lws2_32"; }
3020         check_type ws2tcpip.h socklen_t
3021         check_type ws2tcpip.h "struct addrinfo"
3022         check_type ws2tcpip.h "struct ipv6_mreq"
3023         check_type ws2tcpip.h "struct sockaddr_in6"
3024         check_type ws2tcpip.h "struct sockaddr_storage"
3025         check_struct winsock2.h "struct sockaddr" sa_len
3026     else
3027         disable network
3028     fi
3029 fi
3030
3031 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3032 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3033
3034 check_func  fcntl
3035 check_func  fork
3036 check_func  getaddrinfo $network_extralibs
3037 check_func  gethrtime
3038 check_func  getrusage
3039 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3040 check_func  inet_aton $network_extralibs
3041 check_func  isatty
3042 check_func  localtime_r
3043 check_func  ${malloc_prefix}memalign            && enable memalign
3044 check_func  mkstemp
3045 check_func  mmap
3046 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3047 check_func  setrlimit
3048 check_func  strerror_r
3049 check_func  strptime
3050 check_func  sched_getaffinity
3051 check_func  sysconf
3052 check_func  sysctl
3053 check_func_headers conio.h kbhit
3054 check_func_headers windows.h PeekNamedPipe
3055 check_func_headers io.h setmode
3056 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3057 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3058 check_func_headers windows.h GetProcessAffinityMask
3059 check_func_headers windows.h GetProcessTimes
3060 check_func_headers windows.h MapViewOfFile
3061 check_func_headers windows.h VirtualAlloc
3062
3063 check_header dlfcn.h
3064 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3065 check_header libcrystalhd/libcrystalhd_if.h
3066 check_header malloc.h
3067 check_header poll.h
3068 check_header sys/mman.h
3069 check_header sys/param.h
3070 check_header sys/resource.h
3071 check_header sys/select.h
3072 check_header termios.h
3073 check_header vdpau/vdpau.h
3074 check_header vdpau/vdpau_x11.h
3075 check_header X11/extensions/XvMClib.h
3076 check_header asm/types.h
3077
3078 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3079 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3080
3081 # check for VDA header
3082 if ! disabled vda; then
3083     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3084         enable vda
3085         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3086     fi
3087 fi
3088
3089 if ! disabled w32threads && ! enabled pthreads; then
3090     check_func _beginthreadex && enable w32threads
3091 fi
3092
3093 # check for some common methods of building with pthread support
3094 # do this before the optional library checks as some of them require pthreads
3095 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3096     enable pthreads
3097     if check_func pthread_create; then
3098         :
3099     elif check_func pthread_create -pthread; then
3100         add_cflags -pthread
3101         add_extralibs -pthread
3102     elif check_func pthread_create -pthreads; then
3103         add_cflags -pthreads
3104         add_extralibs -pthreads
3105     elif check_func pthread_create -lpthreadGC2; then
3106         add_extralibs -lpthreadGC2
3107     elif ! check_lib pthread.h pthread_create -lpthread; then
3108         disable pthreads
3109     fi
3110 fi
3111
3112 for thread in $THREADS_LIST; do
3113     if enabled $thread; then
3114         test -n "$thread_type" &&
3115             die "ERROR: Only one thread type must be selected." ||
3116             thread_type="$thread"
3117     fi
3118 done
3119
3120 check_lib math.h sin -lm && LIBM="-lm"
3121 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3122 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3123
3124 check_mathfunc cbrtf
3125 check_mathfunc exp2
3126 check_mathfunc exp2f
3127 check_mathfunc llrint
3128 check_mathfunc llrintf
3129 check_mathfunc log2
3130 check_mathfunc log2f
3131 check_mathfunc lrint
3132 check_mathfunc lrintf
3133 check_mathfunc round
3134 check_mathfunc roundf
3135 check_mathfunc trunc
3136 check_mathfunc truncf
3137
3138 # these are off by default, so fail if requested and not available
3139 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3140 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3141 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3142 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3143 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3144 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3145 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3146                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3147                         die "ERROR: libcelt version must be >= 0.11.0."; }
3148 enabled libdirac   && require_pkg_config dirac                          \
3149     "libdirac_decoder/dirac_parser.h"  \
3150     "dirac_decoder_init"
3151 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3152 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3153 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3154 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3155 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3156 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3157 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3158 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3159 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3160 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3161 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3162 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3163 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3164 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3165 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3166     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3167     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3168 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3169 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3170 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3171 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3172 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3173 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3174 enabled libvpx     && {
3175     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3176                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3177     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3178                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3179 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3180                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3181                         die "ERROR: libx264 version must be >= 0.118."; }
3182 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3183 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3184 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3185                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3186                         die "ERROR: openal not found"; } &&
3187                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3188                         die "ERROR: openal version must be 1.1 or compatible"; }
3189 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3190                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3191                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3192                         die "ERROR: openssl not found"; }
3193
3194 # libdc1394 check
3195 if enabled libdc1394; then
3196     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3197         enable libdc1394_2; } ||
3198     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3199         enable libdc1394_1; } ||
3200     die "ERROR: No version of libdc1394 found "
3201 fi
3202
3203 SDL_CONFIG="${cross_prefix}sdl-config"
3204 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
3205     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3206     enable sdl &&
3207     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3208 else
3209   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3210     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3211     sdl_libs=$("${SDL_CONFIG}" --libs)
3212     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3213     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3214     enable sdl &&
3215     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3216   fi
3217 fi
3218 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3219
3220 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3221 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3222
3223 check_header linux/fb.h
3224 check_header linux/videodev.h
3225 check_header linux/videodev2.h
3226 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3227
3228 check_header sys/videoio.h
3229
3230 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3231 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3232 # w32api 3.12 had it defined wrong
3233 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3234
3235 check_type "dshow.h" IBaseFilter
3236
3237 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3238 { check_header dev/bktr/ioctl_meteor.h &&
3239   check_header dev/bktr/ioctl_bt848.h; } ||
3240 { check_header machine/ioctl_meteor.h &&
3241   check_header machine/ioctl_bt848.h; } ||
3242 { check_header dev/video/meteor/ioctl_meteor.h &&
3243   check_header dev/video/bktr/ioctl_bt848.h; } ||
3244 check_header dev/ic/bt8xx.h
3245
3246 check_header sndio.h
3247 if check_struct sys/soundcard.h audio_buf_info bytes; then
3248     enable_safe sys/soundcard.h
3249 else
3250     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3251     #include <sys/soundcard.h>
3252     audio_buf_info abc;
3253 EOF
3254 fi
3255 check_header soundcard.h
3256
3257 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3258
3259 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3260
3261 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3262
3263 enabled libcdio &&
3264     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3265
3266 enabled x11grab                         &&
3267 check_header X11/Xlib.h                 &&
3268 check_header X11/extensions/XShm.h      &&
3269 check_header X11/extensions/Xfixes.h    &&
3270 check_func XOpenDisplay -lX11           &&
3271 check_func XShmCreateImage -lX11 -lXext &&
3272 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3273
3274 if ! disabled vaapi; then
3275     check_lib va/va.h vaInitialize -lva && {
3276         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3277         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3278     } || disable vaapi
3279 fi
3280
3281 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3282 check_cpp_condition \
3283     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3284     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3285       disable vdpau; }
3286 fi
3287
3288 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3289 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3290 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"
3291
3292 # add some useful compiler flags if supported
3293 check_cflags -Wdeclaration-after-statement
3294 check_cflags -Wall
3295 check_cflags -Wno-parentheses
3296 check_cflags -Wno-switch
3297 check_cflags -Wno-format-zero-length
3298 check_cflags -Wdisabled-optimization
3299 check_cflags -Wpointer-arith
3300 check_cflags -Wredundant-decls
3301 check_cflags -Wno-pointer-sign
3302 check_cflags -Wcast-qual
3303 check_cflags -Wwrite-strings
3304 check_cflags -Wtype-limits
3305 check_cflags -Wundef
3306 check_cflags -Wmissing-prototypes
3307 check_cflags -Wno-pointer-to-int-cast
3308 check_cflags -Wstrict-prototypes
3309 enabled extra_warnings && check_cflags -Winline
3310
3311 # add some linker flags
3312 check_ldflags -Wl,--warn-common
3313 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3314 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3315
3316 enabled xmm_clobber_test &&                             \
3317     check_ldflags -Wl,--wrap,avcodec_open2              \
3318                   -Wl,--wrap,avcodec_decode_audio4      \
3319                   -Wl,--wrap,avcodec_decode_video2      \
3320                   -Wl,--wrap,avcodec_decode_subtitle2   \
3321                   -Wl,--wrap,avcodec_encode_audio2      \
3322                   -Wl,--wrap,avcodec_encode_video       \
3323                   -Wl,--wrap,avcodec_encode_subtitle    \
3324                   -Wl,--wrap,sws_scale ||               \
3325     disable xmm_clobber_test
3326
3327 echo "X{};" > $TMPV
3328 if test_ldflags -Wl,--version-script,$TMPV; then
3329     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3330     check_cc <<EOF && enable symver_asm_label
3331 void ff_foo(void) __asm__ ("av_foo@VERSION");
3332 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3333 EOF
3334     check_cc <<EOF && enable symver_gnu_asm
3335 __asm__(".symver ff_foo,av_foo@VERSION");
3336 void ff_foo(void) {}
3337 EOF
3338 fi
3339
3340 if [ -n "$optflags" ]; then
3341     add_cflags $optflags
3342 elif enabled small; then
3343     add_cflags $size_cflags
3344 elif enabled optimizations; then
3345     add_cflags $speed_cflags
3346 else
3347     add_cflags $noopt_cflags
3348 fi
3349 check_cflags -fno-math-errno
3350 check_cflags -fno-signed-zeros
3351 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3352 int x;
3353 EOF
3354
3355
3356 if enabled icc; then
3357     # Just warnings, no remarks
3358     check_cflags -w1
3359     # -wd: Disable following warnings
3360     # 144, 167, 556: -Wno-pointer-sign
3361     # 1292: attribute "foo" ignored
3362     # 10006: ignoring unknown option -fno-signed-zeros
3363     # 10148: ignoring unknown option -Wno-parentheses
3364     # 10156: ignoring option '-W'; no argument required
3365     check_cflags -wd144,167,556,1292,10006,10148,10156
3366     # 11030: Warning unknown option --as-needed
3367     # 10156: ignoring option '-export'; no argument required
3368     check_ldflags -wd10156,11030
3369     # Allow to compile with optimizations
3370     check_ldflags -march=$cpu
3371     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3372     enable ebp_available
3373     if enabled x86_32; then
3374         test ${icc_version%%.*} -ge 11 && \
3375             check_cflags -falign-stack=maintain-16-byte || \
3376             disable aligned_stack
3377     fi
3378 elif enabled ccc; then
3379     # disable some annoying warnings
3380     add_cflags -msg_disable cvtu32to64
3381     add_cflags -msg_disable embedcomment
3382     add_cflags -msg_disable needconstext
3383     add_cflags -msg_disable nomainieee
3384     add_cflags -msg_disable ptrmismatch1
3385     add_cflags -msg_disable unreachcode
3386 elif enabled gcc; then
3387     check_cflags -fno-tree-vectorize
3388     check_cflags -Werror=implicit-function-declaration
3389     check_cflags -Werror=missing-prototypes
3390 elif enabled llvm_gcc; then
3391     check_cflags -mllvm -stack-alignment=16
3392 elif enabled clang; then
3393     check_cflags -mllvm -stack-alignment=16
3394     check_cflags -Qunused-arguments
3395 elif enabled armcc; then
3396     # 2523: use of inline assembler is deprecated
3397     add_cflags -W${armcc_opt},--diag_suppress=2523
3398     add_cflags -W${armcc_opt},--diag_suppress=1207
3399     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3400     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3401     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3402     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3403 elif enabled tms470; then
3404     add_cflags -pds=824 -pds=837
3405 elif enabled pathscale; then
3406     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3407 fi
3408
3409 enabled_any $THREADS_LIST      && enable threads
3410
3411 check_deps $CONFIG_LIST       \
3412            $CONFIG_EXTRA      \
3413            $HAVE_LIST         \
3414            $ALL_COMPONENTS    \
3415            $ALL_TESTS         \
3416
3417 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3418
3419 if test $target_os = "haiku"; then
3420     disable memalign
3421     disable posix_memalign
3422 fi
3423
3424 ! enabled_any memalign posix_memalign malloc_aligned &&
3425     enabled_any $need_memalign && enable memalign_hack
3426
3427 # add_dep lib dep
3428 # -> enable ${lib}_deps_${dep}
3429 # -> add $dep to ${lib}_deps only once
3430 add_dep() {
3431     lib=$1
3432     dep=$2
3433     enabled "${lib}_deps_${dep}" && return 0
3434     enable  "${lib}_deps_${dep}"
3435     prepend "${lib}_deps" $dep
3436 }
3437
3438 # merge deps lib components
3439 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3440 merge_deps() {
3441     lib=$1
3442     shift
3443     for comp in $*; do
3444         enabled $comp || continue
3445         eval "dep=\"\$${comp}_deps\""
3446         for d in $dep; do
3447             add_dep $lib $d
3448         done
3449     done
3450 }
3451
3452 merge_deps libavfilter $FILTER_LIST
3453
3454 echo "install prefix            $prefix"
3455 echo "source path               $source_path"
3456 echo "C compiler                $cc"
3457 echo "ARCH                      $arch ($cpu)"
3458 if test "$build_suffix" != ""; then
3459     echo "build suffix              $build_suffix"
3460 fi
3461 if test "$progs_suffix" != ""; then
3462     echo "progs suffix              $progs_suffix"
3463 fi
3464 if test "$extra_version" != ""; then
3465     echo "version string suffix     $extra_version"
3466 fi
3467 echo "big-endian                ${bigendian-no}"
3468 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3469 if enabled x86; then
3470     echo "${yasmexe}                      ${yasm-no}"
3471     echo "MMX enabled               ${mmx-no}"
3472     echo "MMX2 enabled              ${mmx2-no}"
3473     echo "3DNow! enabled            ${amd3dnow-no}"
3474     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3475     echo "SSE enabled               ${sse-no}"
3476     echo "SSSE3 enabled             ${ssse3-no}"
3477     echo "AVX enabled               ${avx-no}"
3478     echo "CMOV enabled              ${cmov-no}"
3479     echo "CMOV is fast              ${fast_cmov-no}"
3480     echo "EBX available             ${ebx_available-no}"
3481     echo "EBP available             ${ebp_available-no}"
3482 fi
3483 if enabled arm; then
3484     echo "ARMv5TE enabled           ${armv5te-no}"
3485     echo "ARMv6 enabled             ${armv6-no}"
3486     echo "ARMv6T2 enabled           ${armv6t2-no}"
3487     echo "ARM VFP enabled           ${armvfp-no}"
3488     echo "NEON enabled              ${neon-no}"
3489 fi
3490 if enabled mips; then
3491     echo "MMI enabled               ${mmi-no}"
3492 fi
3493 if enabled ppc; then
3494     echo "AltiVec enabled           ${altivec-no}"
3495     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3496     echo "dcbzl available           ${dcbzl-no}"
3497 fi
3498 if enabled sparc; then
3499     echo "VIS enabled               ${vis-no}"
3500 fi
3501 echo "debug symbols             ${debug-no}"
3502 echo "strip symbols             ${stripping-no}"
3503 echo "optimize for size         ${small-no}"
3504 echo "optimizations             ${optimizations-no}"
3505 echo "static                    ${static-no}"
3506 echo "shared                    ${shared-no}"
3507 echo "postprocessing support    ${postproc-no}"
3508 echo "new filter support        ${avfilter-no}"
3509 echo "network support           ${network-no}"
3510 echo "threading support         ${thread_type-no}"
3511 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3512 echo "SDL support               ${sdl-no}"
3513 echo "libdxva2 enabled          ${dxva2-no}"
3514 echo "libva enabled             ${vaapi-no}"
3515 echo "libvdpau enabled          ${vdpau-no}"
3516 echo "AVISynth enabled          ${avisynth-no}"
3517 echo "frei0r enabled            ${frei0r-no}"
3518 echo "gnutls enabled            ${gnutls-no}"
3519 echo "libaacplus enabled        ${libaacplus-no}"
3520 echo "libass enabled            ${libass-no}"
3521 echo "libcdio support           ${libcdio-no}"
3522 echo "libcelt enabled           ${libcelt-no}"
3523 echo "libdc1394 support         ${libdc1394-no}"
3524 echo "libdirac enabled          ${libdirac-no}"
3525 echo "libfaac enabled           ${libfaac-no}"
3526 echo "libgsm enabled            ${libgsm-no}"
3527 echo "libmodplug enabled        ${libmodplug-no}"
3528 echo "libmp3lame enabled        ${libmp3lame-no}"
3529 echo "libnut enabled            ${libnut-no}"
3530 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3531 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3532 echo "libopencv support         ${libopencv-no}"
3533 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3534 echo "libpulse enabled          ${libpulse-no}"
3535 echo "librtmp enabled           ${librtmp-no}"
3536 echo "libschroedinger enabled   ${libschroedinger-no}"
3537 echo "libspeex enabled          ${libspeex-no}"
3538 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3539 echo "libtheora enabled         ${libtheora-no}"
3540 echo "libutvideo enabled        ${libutvideo-no}"
3541 echo "libv4l2 enabled           ${libv4l2-no}"
3542 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3543 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3544 echo "libvorbis enabled         ${libvorbis-no}"
3545 echo "libvpx enabled            ${libvpx-no}"
3546 echo "libx264 enabled           ${libx264-no}"
3547 echo "libxavs enabled           ${libxavs-no}"
3548 echo "libxvid enabled           ${libxvid-no}"
3549 echo "openal enabled            ${openal-no}"
3550 echo "openssl enabled           ${openssl-no}"
3551 echo "zlib enabled              ${zlib-no}"
3552 echo "bzlib enabled             ${bzlib-no}"
3553 echo
3554
3555 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3556     echo "Enabled ${type}s:"
3557     eval list=\$$(toupper $type)_LIST
3558     print_enabled '_*' $list | sort | pr -r -3 -t
3559     echo
3560 done
3561
3562 license="LGPL version 2.1 or later"
3563 if enabled nonfree; then
3564     license="nonfree and unredistributable"
3565 elif enabled gplv3; then
3566     license="GPL version 3 or later"
3567 elif enabled lgplv3; then
3568     license="LGPL version 3 or later"
3569 elif enabled gpl; then
3570     license="GPL version 2 or later"
3571 fi
3572
3573 echo "License: $license"
3574
3575 echo "Creating config.mak and config.h..."
3576
3577 test -e Makefile || $ln_s "$source_path/Makefile" .
3578
3579 enabled stripping || strip="echo skipping strip"
3580
3581 config_files="$TMPH config.mak"
3582
3583 cat > config.mak <<EOF
3584 # Automatically generated by configure - do not modify!
3585 ifndef FFMPEG_CONFIG_MAK
3586 FFMPEG_CONFIG_MAK=1
3587 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3588 prefix=$prefix
3589 LIBDIR=\$(DESTDIR)$libdir
3590 SHLIBDIR=\$(DESTDIR)$shlibdir
3591 INCDIR=\$(DESTDIR)$incdir
3592 BINDIR=\$(DESTDIR)$bindir
3593 DATADIR=\$(DESTDIR)$datadir
3594 MANDIR=\$(DESTDIR)$mandir
3595 SRC_PATH=$source_path
3596 ifndef MAIN_MAKEFILE
3597 SRC_PATH:=\$(SRC_PATH:.%=..%)
3598 endif
3599 CC_IDENT=$cc_ident
3600 ARCH=$arch
3601 CC=$cc
3602 CXX=$cxx
3603 AS=$as
3604 LD=$ld
3605 DEPCC=$dep_cc
3606 YASM=$yasmexe
3607 YASMDEP=$yasmexe
3608 AR=$ar
3609 RANLIB=$ranlib
3610 CP=cp -p
3611 LN_S=$ln_s
3612 STRIP=$strip
3613 CPPFLAGS=$CPPFLAGS
3614 CFLAGS=$CFLAGS
3615 CXXFLAGS=$CXXFLAGS
3616 ASFLAGS=$ASFLAGS
3617 AS_O=$CC_O
3618 CC_O=$CC_O
3619 CXX_O=$CXX_O
3620 LDFLAGS=$LDFLAGS
3621 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3622 SHFLAGS=$SHFLAGS
3623 YASMFLAGS=$YASMFLAGS
3624 BUILDSUF=$build_suffix
3625 PROGSSUF=$progs_suffix
3626 FULLNAME=$FULLNAME
3627 LIBPREF=$LIBPREF
3628 LIBSUF=$LIBSUF
3629 LIBNAME=$LIBNAME
3630 SLIBPREF=$SLIBPREF
3631 SLIBSUF=$SLIBSUF
3632 EXESUF=$EXESUF
3633 EXTRA_VERSION=$extra_version
3634 DEPFLAGS=$DEPFLAGS
3635 CCDEP=$CCDEP
3636 CXXDEP=$CXXDEP
3637 ASDEP=$ASDEP
3638 CC_DEPFLAGS=$CC_DEPFLAGS
3639 AS_DEPFLAGS=$AS_DEPFLAGS
3640 HOSTCC=$host_cc
3641 HOSTCFLAGS=$host_cflags
3642 HOSTEXESUF=$HOSTEXESUF
3643 HOSTLDFLAGS=$host_ldflags
3644 HOSTLIBS=$host_libs
3645 TARGET_EXEC=$target_exec
3646 TARGET_PATH=$target_path
3647 SDL_LIBS=$sdl_libs
3648 SDL_CFLAGS=$sdl_cflags
3649 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3650 EXTRALIBS=$extralibs
3651 INSTALL=$install
3652 LIBTARGET=${LIBTARGET}
3653 SLIBNAME=${SLIBNAME}
3654 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3655 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3656 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3657 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3658 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3659 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3660 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3661 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3662 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3663 NOREDZONE_FLAGS=$noredzone_flags
3664 EOF
3665
3666 get_version(){
3667     name=$1
3668     file=$source_path/$2
3669 # This condition will be removed when we stop supporting old libpostproc versions
3670 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3671     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3672     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3673 fi
3674     lcname=$(tolower $name)
3675     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3676     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3677 }
3678
3679 get_version LIBAVCODEC  libavcodec/version.h
3680 get_version LIBAVDEVICE libavdevice/avdevice.h
3681 get_version LIBAVFILTER libavfilter/version.h
3682 get_version LIBAVFORMAT libavformat/version.h
3683 get_version LIBAVUTIL   libavutil/avutil.h
3684 get_version LIBPOSTPROC libpostproc/postprocess.h
3685 get_version LIBSWRESAMPLE libswresample/swresample.h
3686 get_version LIBSWSCALE  libswscale/swscale.h
3687
3688 cat > $TMPH <<EOF
3689 /* Automatically generated by configure - do not modify! */
3690 #ifndef FFMPEG_CONFIG_H
3691 #define FFMPEG_CONFIG_H
3692 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3693 #define FFMPEG_LICENSE "$(c_escape $license)"
3694 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3695 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3696 #define CC_TYPE "$cc_type"
3697 #define CC_VERSION $cc_version
3698 #define restrict $_restrict
3699 #define EXTERN_PREFIX "${extern_prefix}"
3700 #define EXTERN_ASM ${extern_prefix}
3701 #define SLIBSUF "$SLIBSUF"
3702 EOF
3703
3704 test -n "$malloc_prefix" &&
3705     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3706
3707 if enabled small || disabled optimizations; then
3708     echo "#undef  av_always_inline"  >> $TMPH
3709     if enabled small; then
3710         echo "#define av_always_inline inline"  >> $TMPH
3711     else
3712         echo "#define av_always_inline av_unused"  >> $TMPH
3713     fi
3714 fi
3715
3716 if enabled yasm; then
3717     append config_files $TMPASM
3718     printf '' >$TMPASM
3719 fi
3720
3721 print_config ARCH_   "$config_files" $ARCH_LIST
3722 print_config HAVE_   "$config_files" $HAVE_LIST
3723 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3724                                      $CONFIG_EXTRA      \
3725                                      $ALL_COMPONENTS    \
3726
3727 cat >>config.mak <<EOF
3728 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3729 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3730 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3731 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3732 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3733 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3734 EOF
3735
3736 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3737 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3738
3739 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3740 cp_if_changed $TMPH config.h
3741 touch .config
3742
3743 enabled yasm && cp_if_changed $TMPASM config.asm
3744
3745 cat > $TMPH <<EOF
3746 /* Generated by ffconf */
3747 #ifndef AVUTIL_AVCONFIG_H
3748 #define AVUTIL_AVCONFIG_H
3749 EOF
3750
3751 test "$postproc_version" != current && cat >> $TMPH <<EOF
3752 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3753 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3754 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3755 EOF
3756
3757 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3758
3759 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3760
3761 cp_if_changed $TMPH libavutil/avconfig.h
3762
3763 test -n "$WARNINGS" && printf "\n$WARNINGS"
3764
3765 # build pkg-config files
3766
3767 pkgconfig_generate(){
3768 name=$1
3769 shortname=${name#lib}${build_suffix}
3770 comment=$2
3771 version=$3
3772 libs=$4
3773 requires=$5
3774 enabled ${name#lib} || return 0
3775 mkdir -p $name
3776 cat <<EOF > $name/$name.pc
3777 prefix=$prefix
3778 exec_prefix=\${prefix}
3779 libdir=$libdir
3780 includedir=$incdir
3781
3782 Name: $name
3783 Description: $comment
3784 Version: $version
3785 Requires: $(enabled shared || echo $requires)
3786 Requires.private: $(enabled shared && echo $requires)
3787 Conflicts:
3788 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3789 Libs.private: $(enabled shared && echo $libs)
3790 Cflags: -I\${includedir}
3791 EOF
3792 cat <<EOF > $name/$name-uninstalled.pc
3793 prefix=
3794 exec_prefix=
3795 libdir=\${pcfiledir}
3796 includedir=${source_path}
3797
3798 Name: $name
3799 Description: $comment
3800 Version: $version
3801 Requires: $requires
3802 Conflicts:
3803 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3804 Cflags: -I\${includedir}
3805 EOF
3806 }
3807
3808 libavfilter_pc_deps=""
3809 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
3810 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
3811 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
3812 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
3813 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
3814 libavfilter_pc_deps=${libavfilter_pc_deps%, }
3815
3816 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
3817 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
3818
3819 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3820 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3821 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3822 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
3823 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
3824 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3825 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3826 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"