configure: fix gcc asm tests for MinGW GCC 4.6.2
[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-libcelt         enable CELT decoding via libcelt [no]
175   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
176   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
177   --enable-libopencv       enable video filtering via libopencv [no]
178   --enable-libcdio         enable audio CD grabbing with libcdio
179   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
180                            and libraw1394 [no]
181   --enable-libdirac        enable Dirac support via libdirac [no]
182   --enable-libfaac         enable FAAC support via libfaac [no]
183   --enable-libfreetype     enable libfreetype [no]
184   --enable-libgsm          enable GSM support via libgsm [no]
185   --enable-libmodplug      enable ModPlug via libmodplug [no]
186   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
187   --enable-libnut          enable NUT (de)muxing via libnut,
188                            native (de)muxer exists [no]
189   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [no]
190   --enable-libpulse        enable Pulseaudio input via libpulse [no]
191   --enable-librtmp         enable RTMP[E] support via librtmp [no]
192   --enable-libschroedinger enable Dirac support via libschroedinger [no]
193   --enable-libspeex        enable Speex support via libspeex [no]
194   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
195   --enable-libtheora       enable Theora encoding via libtheora [no]
196   --enable-libutvideo      enable Ut Video decoding via libutvideo [no]
197   --enable-libv4l2         enable libv4l2/v4l-utils [no]
198   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
199   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
200   --enable-libvorbis       enable Vorbis encoding via libvorbis,
201                            native implementation exists [no]
202   --enable-libvpx          enable VP8 support via libvpx [no]
203   --enable-libx264         enable H.264 encoding via x264 [no]
204   --enable-libxavs         enable AVS encoding via xavs [no]
205   --enable-libxvid         enable Xvid encoding via xvidcore,
206                            native MPEG-4/Xvid encoder exists [no]
207   --enable-openal          enable OpenAL 1.1 capture support [no]
208   --enable-openssl         enable openssl [no]
209   --enable-zlib            enable zlib [autodetect]
210
211 Advanced options (experts only):
212   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
213   --enable-cross-compile   assume a cross-compiler is used
214   --sysroot=PATH           root of cross-build tree
215   --sysinclude=PATH        location of cross-build system headers
216   --target-os=OS           compiler targets OS [$target_os]
217   --target-exec=CMD        command to run executables on target
218   --target-path=DIR        path to view of build directory on target
219   --nm=NM                  use nm tool NM [$nm_default]
220   --ar=AR                  use archive tool AR [$ar_default]
221   --as=AS                  use assembler AS [$as_default]
222   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
223   --cc=CC                  use C compiler CC [$cc_default]
224   --cxx=CXX                use C compiler CXX [$cxx_default]
225   --ld=LD                  use linker LD [$ld_default]
226   --host-cc=HOSTCC         use host C compiler HOSTCC
227   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
228   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
229   --host-libs=HLIBS        use libs HLIBS when linking for host
230   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
231   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
232   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
233   --extra-libs=ELIBS       add ELIBS [$ELIBS]
234   --extra-version=STRING   version string suffix []
235   --build-suffix=SUFFIX    library name suffix []
236   --progs-suffix=SUFFIX    program name suffix []
237   --arch=ARCH              select architecture [$arch]
238   --cpu=CPU                select the minimum required CPU (affects
239                            instruction selection, may crash on older CPUs)
240   --disable-asm            disable all assembler optimizations
241   --disable-altivec        disable AltiVec optimizations
242   --disable-amd3dnow       disable 3DNow! optimizations
243   --disable-amd3dnowext    disable 3DNow! extended optimizations
244   --disable-mmx            disable MMX optimizations
245   --disable-mmx2           disable MMX2 optimizations
246   --disable-sse            disable SSE optimizations
247   --disable-ssse3          disable SSSE3 optimizations
248   --disable-avx            disable AVX optimizations
249   --disable-armv5te        disable armv5te optimizations
250   --disable-armv6          disable armv6 optimizations
251   --disable-armv6t2        disable armv6t2 optimizations
252   --disable-armvfp         disable ARM VFP optimizations
253   --disable-iwmmxt         disable iwmmxt optimizations
254   --disable-mmi            disable MMI optimizations
255   --disable-neon           disable NEON optimizations
256   --disable-vis            disable VIS optimizations
257   --disable-yasm           disable use of yasm assembler
258   --enable-pic             build position-independent code
259   --malloc-prefix=PFX      prefix malloc and related names with PFX
260   --enable-sram            allow use of on-chip SRAM
261   --disable-symver         disable symbol versioning
262   --optflags               override optimization-related compiler flags
263   --postproc-version=V     build libpostproc version V.
264                            Where V can be '$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     libcdio
1033     libcelt
1034     libdc1394
1035     libdirac
1036     libfaac
1037     libfreetype
1038     libgsm
1039     libmodplug
1040     libmp3lame
1041     libnut
1042     libopencore_amrnb
1043     libopencore_amrwb
1044     libopencv
1045     libopenjpeg
1046     libpulse
1047     librtmp
1048     libschroedinger
1049     libspeex
1050     libstagefright_h264
1051     libtheora
1052     libutvideo
1053     libv4l2
1054     libvo_aacenc
1055     libvo_amrwbenc
1056     libvorbis
1057     libvpx
1058     libx264
1059     libxavs
1060     libxvid
1061     lpc
1062     lsp
1063     mdct
1064     memalign_hack
1065     mpegaudiodsp
1066     network
1067     nonfree
1068     openal
1069     openssl
1070     pic
1071     postproc
1072     rdft
1073     rtpdec
1074     runtime_cpudetect
1075     safe_bitstream_reader
1076     shared
1077     sinewin
1078     small
1079     sram
1080     static
1081     swresample
1082     swscale
1083     swscale_alpha
1084     thumb
1085     vaapi
1086     vda
1087     vdpau
1088     version3
1089     xmm_clobber_test
1090     x11grab
1091     zlib
1092 "
1093
1094 THREADS_LIST='
1095     pthreads
1096     w32threads
1097     os2threads
1098 '
1099
1100 ARCH_LIST='
1101     alpha
1102     arm
1103     avr32
1104     avr32_ap
1105     avr32_uc
1106     bfin
1107     ia64
1108     m68k
1109     mips
1110     mips64
1111     parisc
1112     ppc
1113     ppc64
1114     s390
1115     sh4
1116     sparc
1117     sparc64
1118     tomi
1119     x86
1120     x86_32
1121     x86_64
1122 '
1123
1124 ARCH_EXT_LIST='
1125     altivec
1126     amd3dnow
1127     amd3dnowext
1128     armv5te
1129     armv6
1130     armv6t2
1131     armvfp
1132     avx
1133     iwmmxt
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 iwmmxt_deps="arm"
1346 neon_deps="arm"
1347 vfpv3_deps="armvfp"
1348
1349 mmi_deps="mips"
1350
1351 altivec_deps="ppc"
1352 ppc4xx_deps="ppc"
1353
1354 vis_deps="sparc"
1355
1356 x86_64_suggest="cmov fast_cmov"
1357 amd3dnow_deps="mmx"
1358 amd3dnowext_deps="amd3dnow"
1359 mmx_deps="x86"
1360 mmx2_deps="mmx"
1361 sse_deps="mmx"
1362 ssse3_deps="sse"
1363 avx_deps="ssse3"
1364
1365 aligned_stack_if_any="ppc x86"
1366 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1367 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1368 fast_unaligned_if_any="armv6 ppc x86"
1369
1370 inline_asm_deps="!tms470"
1371 need_memalign="altivec neon sse"
1372
1373 symver_if_any="symver_asm_label symver_gnu_asm"
1374
1375 # subsystems
1376 dct_select="rdft"
1377 mdct_select="fft"
1378 rdft_select="fft"
1379 mpegaudiodsp_select="dct"
1380
1381 # decoders / encoders / hardware accelerators
1382 aac_decoder_select="mdct sinewin"
1383 aac_encoder_select="mdct sinewin"
1384 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1385 ac3_decoder_select="mdct ac3dsp ac3_parser"
1386 ac3_encoder_select="mdct ac3dsp"
1387 ac3_fixed_encoder_select="mdct ac3dsp"
1388 alac_encoder_select="lpc"
1389 amrnb_decoder_select="lsp"
1390 amrwb_decoder_select="lsp"
1391 atrac1_decoder_select="mdct sinewin"
1392 atrac3_decoder_select="mdct"
1393 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1394 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1395 cavs_decoder_select="golomb"
1396 cook_decoder_select="mdct sinewin"
1397 cscd_decoder_suggest="zlib"
1398 dca_decoder_select="mdct"
1399 dnxhd_encoder_select="aandct"
1400 dxa_decoder_select="zlib"
1401 eac3_decoder_select="ac3_decoder"
1402 eac3_encoder_select="mdct ac3dsp"
1403 eamad_decoder_select="aandct"
1404 eatgq_decoder_select="aandct"
1405 eatqi_decoder_select="aandct"
1406 ffv1_decoder_select="golomb"
1407 flac_decoder_select="golomb"
1408 flac_encoder_select="golomb lpc"
1409 flashsv_decoder_select="zlib"
1410 flashsv_encoder_select="zlib"
1411 flashsv2_encoder_select="zlib"
1412 flashsv2_decoder_select="zlib"
1413 flv_decoder_select="h263_decoder"
1414 flv_encoder_select="h263_encoder"
1415 fraps_decoder_select="huffman"
1416 h261_encoder_select="aandct"
1417 h263_decoder_select="h263_parser"
1418 h263_encoder_select="aandct"
1419 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1420 h263i_decoder_select="h263_decoder"
1421 h263p_encoder_select="h263_encoder"
1422 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1423 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1424 h264_dxva2_hwaccel_deps="dxva2api_h"
1425 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1426 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1427 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1428 h264_vda_hwaccel_select="vda h264_decoder"
1429 h264_vdpau_decoder_select="vdpau h264_decoder"
1430 imc_decoder_select="fft mdct sinewin"
1431 jpegls_decoder_select="golomb"
1432 jpegls_encoder_select="golomb"
1433 ljpeg_encoder_select="aandct"
1434 loco_decoder_select="golomb"
1435 mjpeg_encoder_select="aandct"
1436 mlp_decoder_select="mlp_parser"
1437 mp1_decoder_select="mpegaudiodsp"
1438 mp1float_decoder_select="mpegaudiodsp"
1439 mp2_decoder_select="mpegaudiodsp"
1440 mp2float_decoder_select="mpegaudiodsp"
1441 mp3_decoder_select="mpegaudiodsp"
1442 mp3adu_decoder_select="mpegaudiodsp"
1443 mp3adufloat_decoder_select="mpegaudiodsp"
1444 mp3float_decoder_select="mpegaudiodsp"
1445 mp3on4_decoder_select="mpegaudiodsp"
1446 mp3on4float_decoder_select="mpegaudiodsp"
1447 mpc7_decoder_select="mpegaudiodsp"
1448 mpc8_decoder_select="mpegaudiodsp"
1449 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1450 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1451 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1452 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1453 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1454 mpeg1video_encoder_select="aandct"
1455 mpeg2_crystalhd_decoder_select="crystalhd"
1456 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1457 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1458 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1459 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1460 mpeg2video_encoder_select="aandct"
1461 mpeg4_crystalhd_decoder_select="crystalhd"
1462 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1463 mpeg4_encoder_select="h263_encoder"
1464 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1465 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1466 msmpeg4_crystalhd_decoder_select="crystalhd"
1467 msmpeg4v1_decoder_select="h263_decoder"
1468 msmpeg4v1_encoder_select="h263_encoder"
1469 msmpeg4v2_decoder_select="h263_decoder"
1470 msmpeg4v2_encoder_select="h263_encoder"
1471 msmpeg4v3_decoder_select="h263_decoder"
1472 msmpeg4v3_encoder_select="h263_encoder"
1473 nellymoser_decoder_select="mdct sinewin"
1474 nellymoser_encoder_select="mdct sinewin"
1475 png_decoder_select="zlib"
1476 png_encoder_select="zlib"
1477 qcelp_decoder_select="lsp"
1478 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1479 ra_144_encoder_select="lpc"
1480 rv10_decoder_select="h263_decoder"
1481 rv10_encoder_select="h263_encoder"
1482 rv20_decoder_select="h263_decoder"
1483 rv20_encoder_select="h263_encoder"
1484 rv30_decoder_select="golomb h264chroma h264pred"
1485 rv40_decoder_select="golomb h264chroma h264pred"
1486 shorten_decoder_select="golomb"
1487 sipr_decoder_select="lsp"
1488 snow_decoder_select="dwt"
1489 snow_encoder_select="aandct dwt"
1490 sonic_decoder_select="golomb"
1491 sonic_encoder_select="golomb"
1492 sonic_ls_encoder_select="golomb"
1493 svq1_encoder_select="aandct"
1494 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1495 svq3_decoder_suggest="zlib"
1496 theora_decoder_select="vp3_decoder"
1497 tiff_decoder_suggest="zlib"
1498 tiff_encoder_suggest="zlib"
1499 truehd_decoder_select="mlp_decoder"
1500 tscc_decoder_select="zlib"
1501 twinvq_decoder_select="mdct lsp sinewin"
1502 vc1_crystalhd_decoder_select="crystalhd"
1503 vc1_decoder_select="h263_decoder h264chroma"
1504 vc1_dxva2_hwaccel_deps="dxva2api_h"
1505 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1506 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1507 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1508 vc1image_decoder_select="vc1_decoder"
1509 vorbis_decoder_select="mdct"
1510 vorbis_encoder_select="mdct"
1511 vp6_decoder_select="huffman"
1512 vp6a_decoder_select="vp6_decoder"
1513 vp6f_decoder_select="vp6_decoder"
1514 vp8_decoder_select="h264pred"
1515 wmapro_decoder_select="mdct sinewin"
1516 wmav1_decoder_select="mdct sinewin"
1517 wmav1_encoder_select="mdct sinewin"
1518 wmav2_decoder_select="mdct sinewin"
1519 wmav2_encoder_select="mdct sinewin"
1520 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1521 wmv1_decoder_select="h263_decoder"
1522 wmv1_encoder_select="h263_encoder"
1523 wmv2_decoder_select="h263_decoder"
1524 wmv2_encoder_select="h263_encoder"
1525 wmv3_decoder_select="vc1_decoder"
1526 wmv3_crystalhd_decoder_select="crystalhd"
1527 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1528 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1529 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1530 wmv3image_decoder_select="wmv3_decoder"
1531 zlib_decoder_select="zlib"
1532 zlib_encoder_select="zlib"
1533 zmbv_decoder_select="zlib"
1534 zmbv_encoder_select="zlib"
1535
1536 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1537 vaapi_deps="va_va_h"
1538 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1539 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1540
1541 # parsers
1542 h264_parser_select="golomb h264chroma h264dsp h264pred"
1543
1544 # external libraries
1545 libaacplus_encoder_deps="libaacplus"
1546 libcelt_decoder_deps="libcelt"
1547 libdirac_decoder_deps="libdirac !libschroedinger"
1548 libdirac_encoder_deps="libdirac"
1549 libfaac_encoder_deps="libfaac"
1550 libgsm_decoder_deps="libgsm"
1551 libgsm_encoder_deps="libgsm"
1552 libgsm_ms_decoder_deps="libgsm"
1553 libgsm_ms_encoder_deps="libgsm"
1554 libmodplug_demuxer_deps="libmodplug"
1555 libmp3lame_encoder_deps="libmp3lame"
1556 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1557 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1558 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1559 libopenjpeg_decoder_deps="libopenjpeg"
1560 libopenjpeg_encoder_deps="libopenjpeg"
1561 libschroedinger_decoder_deps="libschroedinger"
1562 libschroedinger_encoder_deps="libschroedinger"
1563 libspeex_decoder_deps="libspeex"
1564 libspeex_encoder_deps="libspeex"
1565 libstagefright_h264_decoder_deps="libstagefright_h264"
1566 libtheora_encoder_deps="libtheora"
1567 libvo_aacenc_encoder_deps="libvo_aacenc"
1568 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1569 libvorbis_encoder_deps="libvorbis"
1570 libvpx_decoder_deps="libvpx"
1571 libvpx_encoder_deps="libvpx"
1572 libx264_encoder_deps="libx264"
1573 libx264rgb_encoder_deps="libx264"
1574 libxavs_encoder_deps="libxavs"
1575 libxvid_encoder_deps="libxvid"
1576 libutvideo_decoder_deps="libutvideo gpl"
1577
1578 # demuxers / muxers
1579 ac3_demuxer_select="ac3_parser"
1580 asf_stream_muxer_select="asf_muxer"
1581 avisynth_demuxer_deps="avisynth"
1582 dirac_demuxer_select="dirac_parser"
1583 eac3_demuxer_select="ac3_parser"
1584 flac_demuxer_select="flac_parser"
1585 ipod_muxer_select="mov_muxer"
1586 libnut_demuxer_deps="libnut"
1587 libnut_muxer_deps="libnut"
1588 matroska_audio_muxer_select="matroska_muxer"
1589 matroska_demuxer_suggest="zlib bzlib"
1590 mov_demuxer_suggest="zlib"
1591 mp3_demuxer_select="mpegaudio_parser"
1592 mp4_muxer_select="mov_muxer"
1593 mpegtsraw_demuxer_select="mpegts_demuxer"
1594 mxf_d10_muxer_select="mxf_muxer"
1595 ogg_demuxer_select="golomb"
1596 psp_muxer_select="mov_muxer"
1597 rtp_demuxer_select="sdp_demuxer"
1598 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1599 rtsp_demuxer_select="http_protocol rtpdec"
1600 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1601 sap_demuxer_select="sdp_demuxer"
1602 sap_muxer_select="rtp_muxer rtp_protocol"
1603 sdp_demuxer_select="rtpdec"
1604 spdif_muxer_select="aac_parser"
1605 tg2_muxer_select="mov_muxer"
1606 tgp_muxer_select="mov_muxer"
1607 w64_demuxer_deps="wav_demuxer"
1608
1609 # indevs / outdevs
1610 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1611 alsa_outdev_deps="alsa_asoundlib_h"
1612 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1613 dshow_indev_deps="IBaseFilter"
1614 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1615 dv1394_indev_deps="dv1394 dv_demuxer"
1616 fbdev_indev_deps="linux_fb_h"
1617 jack_indev_deps="jack_jack_h sem_timedwait"
1618 lavfi_indev_deps="avfilter"
1619 libcdio_indev_deps="libcdio"
1620 libdc1394_indev_deps="libdc1394"
1621 libv4l2_indev_deps="libv4l2"
1622 openal_indev_deps="openal"
1623 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1624 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1625 pulse_indev_deps="libpulse"
1626 sdl_outdev_deps="sdl"
1627 sndio_indev_deps="sndio_h"
1628 sndio_outdev_deps="sndio_h"
1629 v4l_indev_deps="linux_videodev_h"
1630 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1631 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1632 vfwcap_indev_extralibs="-lavicap32"
1633 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1634 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1635
1636 # protocols
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 mmsh_protocol_select="http_protocol"
1644 mmst_protocol_deps="network"
1645 rtmp_protocol_select="tcp_protocol"
1646 rtp_protocol_select="udp_protocol"
1647 tcp_protocol_deps="network"
1648 tls_protocol_deps_any="openssl gnutls"
1649 tls_protocol_select="tcp_protocol"
1650 udp_protocol_deps="network"
1651
1652 # filters
1653 aconvert_filter_deps="swresample"
1654 amovie_filter_deps="avcodec avformat"
1655 aresample_filter_deps="swresample"
1656 ass_filter_deps="libass"
1657 blackframe_filter_deps="gpl"
1658 boxblur_filter_deps="gpl"
1659 cropdetect_filter_deps="gpl"
1660 delogo_filter_deps="gpl"
1661 drawtext_filter_deps="libfreetype"
1662 frei0r_filter_deps="frei0r dlopen"
1663 frei0r_src_filter_deps="frei0r dlopen"
1664 hqdn3d_filter_deps="gpl"
1665 movie_filter_deps="avcodec avformat"
1666 mp_filter_deps="gpl avcodec"
1667 mptestsrc_filter_deps="gpl"
1668 negate_filter_deps="lut_filter"
1669 ocv_filter_deps="libopencv"
1670 pan_filter_deps="swresample"
1671 scale_filter_deps="swscale"
1672 tinterlace_filter_deps="gpl"
1673 yadif_filter_deps="gpl"
1674
1675 # libraries
1676 avdevice_deps="avcodec avformat"
1677 avformat_deps="avcodec"
1678 postproc_deps="gpl"
1679
1680 # programs
1681 ffplay_deps="avcodec avformat swscale sdl"
1682 ffplay_select="buffersink_filter rdft"
1683 ffprobe_deps="avcodec avformat"
1684 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1685 ffserver_extralibs='$ldl'
1686 ffmpeg_deps="avcodec avformat swscale swresample"
1687 ffmpeg_select="buffersink_filter"
1688
1689 doc_deps="texi2html"
1690
1691 # tests
1692
1693 test_deps(){
1694     suf1=$1
1695     suf2=$2
1696     shift 2
1697     for v; do
1698         dep=${v%=*}
1699         tests=${v#*=}
1700         for name in ${tests}; do
1701             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1702         done
1703     done
1704 }
1705
1706 mxf_d10_test_deps="avfilter"
1707 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1708
1709 test_deps _encoder _decoder                                             \
1710     adpcm_ima_qt                                                        \
1711     adpcm_ima_wav                                                       \
1712     adpcm_ms                                                            \
1713     adpcm_swf                                                           \
1714     adpcm_yamaha=adpcm_yam                                              \
1715     alac                                                                \
1716     asv1                                                                \
1717     asv2                                                                \
1718     bmp                                                                 \
1719     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1720     dvvideo="dv dv_411 dv50"                                            \
1721     ffv1                                                                \
1722     flac                                                                \
1723     flashsv                                                             \
1724     flv                                                                 \
1725     adpcm_g726=g726                                                     \
1726     gif                                                                 \
1727     h261                                                                \
1728     h263="h263 h263p"                                                   \
1729     huffyuv                                                             \
1730     jpegls                                                              \
1731     mjpeg="jpg mjpeg ljpeg"                                             \
1732     mp2                                                                 \
1733     mpeg1video="mpeg mpeg1b"                                            \
1734     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1735     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1736     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1737     mpeg4="mpeg4thread error rc"                                        \
1738     msmpeg4v3=msmpeg4                                                   \
1739     msmpeg4v2                                                           \
1740     pbm=pbmpipe                                                         \
1741     pcx                                                                 \
1742     pgm="pgm pgmpipe"                                                   \
1743     png                                                                 \
1744     ppm="ppm ppmpipe"                                                   \
1745     rawvideo="rgb yuv"                                                  \
1746     roq                                                                 \
1747     rv10                                                                \
1748     rv20                                                                \
1749     sgi                                                                 \
1750     snow="snow snowll"                                                  \
1751     svq1                                                                \
1752     targa=tga                                                           \
1753     tiff                                                                \
1754     wmav1                                                               \
1755     wmav2                                                               \
1756     wmv1                                                                \
1757     wmv2                                                                \
1758
1759 test_deps _muxer _demuxer                                               \
1760     aiff                                                                \
1761     pcm_alaw=alaw                                                       \
1762     asf                                                                 \
1763     au                                                                  \
1764     avi                                                                 \
1765     dv=dv_fmt                                                           \
1766     ffm                                                                 \
1767     flv=flv_fmt                                                         \
1768     gxf                                                                 \
1769     matroska=mkv                                                        \
1770     mmf                                                                 \
1771     mov                                                                 \
1772     pcm_mulaw=mulaw                                                     \
1773     mxf="mxf mxf_d10"                                                   \
1774     nut                                                                 \
1775     ogg                                                                 \
1776     rawvideo=pixfmt                                                     \
1777     rm                                                                  \
1778     swf                                                                 \
1779     mpegts=ts                                                           \
1780     voc                                                                 \
1781     wav                                                                 \
1782     yuv4mpegpipe=yuv4mpeg                                               \
1783
1784 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1785 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1786
1787 # default parameters
1788
1789 logfile="config.log"
1790
1791 # installation paths
1792 prefix_default="/usr/local"
1793 bindir_default='${prefix}/bin'
1794 datadir_default='${prefix}/share/ffmpeg'
1795 incdir_default='${prefix}/include'
1796 libdir_default='${prefix}/lib'
1797 mandir_default='${prefix}/share/man'
1798 shlibdir_default="$libdir_default"
1799 postproc_version_default="current"
1800
1801 # toolchain
1802 ar_default="ar"
1803 cc_default="gcc"
1804 cxx_default="g++"
1805 cc_version=\"unknown\"
1806 host_cc_default="gcc"
1807 install="install"
1808 ln_s="ln -sf"
1809 nm_default="nm"
1810 objformat="elf"
1811 pkg_config_default=pkg-config
1812 ranlib="ranlib"
1813 strip_default="strip"
1814 yasmexe_default="yasm"
1815
1816 nm_opts='-g'
1817 nogas=":"
1818
1819 # machine
1820 arch_default=$(uname -m)
1821 cpu="generic"
1822
1823 # OS
1824 target_os_default=$(tolower $(uname -s))
1825 host_os=$target_os_default
1826
1827 # alternative libpostproc version
1828 ALT_PP_VER_MAJOR=51
1829 ALT_PP_VER_MINOR=2
1830 ALT_PP_VER_MICRO=101
1831 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1832
1833 # configurable options
1834 enable $PROGRAM_LIST
1835
1836 enable avcodec
1837 enable avdevice
1838 enable avfilter
1839 enable avformat
1840 enable avutil
1841 enable postproc
1842 enable stripping
1843 enable swresample
1844 enable swscale
1845
1846 enable asm
1847 enable debug
1848 enable doc
1849 enable fastdiv
1850 enable network
1851 enable optimizations
1852 enable safe_bitstream_reader
1853 enable static
1854 enable swscale_alpha
1855
1856 # build settings
1857 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1858 FFSERVERLDFLAGS=-Wl,-E
1859 LIBPREF="lib"
1860 LIBSUF=".a"
1861 FULLNAME='$(NAME)$(BUILDSUF)'
1862 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1863 SLIBPREF="lib"
1864 SLIBSUF=".so"
1865 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1866 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1867 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1868 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1869 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1870 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1871
1872 AS_O='-o $@'
1873 CC_O='-o $@'
1874 CXX_O='-o $@'
1875
1876 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1877 host_libs='-lm'
1878
1879 target_path='$(CURDIR)'
1880
1881 # since the object filename is not given with the -MM flag, the compiler
1882 # is only able to print the basename, and we must add the path ourselves
1883 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1884 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1885
1886 # find source path
1887 if test -f configure; then
1888     source_path=.
1889 else
1890     source_path=$(cd $(dirname "$0"); pwd)
1891     echo "$source_path" | grep -q '[[:blank:]]' &&
1892         die "Out of tree builds are impossible with whitespace in source path."
1893     test -e "$source_path/config.h" &&
1894         die "Out of tree builds are impossible with config.h in source dir."
1895 fi
1896
1897 for v in "$@"; do
1898     r=${v#*=}
1899     l=${v%"$r"}
1900     r=$(sh_quote "$r")
1901     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1902 done
1903
1904 find_things(){
1905     thing=$1
1906     pattern=$2
1907     file=$source_path/$3
1908     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1909 }
1910
1911 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1912 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1913 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1914 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1915 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1916 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1917 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1918 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1919 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1920 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1921 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1922
1923 ALL_COMPONENTS="
1924     $BSF_LIST
1925     $DECODER_LIST
1926     $DEMUXER_LIST
1927     $ENCODER_LIST
1928     $FILTER_LIST
1929     $HWACCEL_LIST
1930     $INDEV_LIST
1931     $MUXER_LIST
1932     $OUTDEV_LIST
1933     $PARSER_LIST
1934     $PROTOCOL_LIST
1935 "
1936
1937 find_tests(){
1938     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1939 }
1940
1941 ACODEC_TESTS=$(find_tests acodec)
1942 VCODEC_TESTS=$(find_tests vsynth1)
1943 LAVF_TESTS=$(find_tests lavf)
1944 LAVFI_TESTS=$(find_tests lavfi)
1945 SEEK_TESTS=$(find_tests seek seek_)
1946
1947 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1948
1949 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1950
1951 for n in $COMPONENT_LIST; do
1952     v=$(toupper ${n%s})_LIST
1953     eval enable \$$v
1954     eval ${n}_if_any="\$$v"
1955 done
1956
1957 enable $ARCH_EXT_LIST $ALL_TESTS
1958
1959 die_unknown(){
1960     echo "Unknown option \"$1\"."
1961     echo "See $0 --help for available options."
1962     exit 1
1963 }
1964
1965 show_list() {
1966     suffix=_$1
1967     shift
1968     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1969     exit 0
1970 }
1971
1972 for opt do
1973     optval="${opt#*=}"
1974     case "$opt" in
1975     --extra-ldflags=*) add_ldflags $optval
1976     ;;
1977     --extra-libs=*) add_extralibs $optval
1978     ;;
1979     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1980     ;;
1981     --enable-debug=*) debuglevel="$optval"
1982     ;;
1983     --disable-everything)
1984     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1985     ;;
1986     --enable-*=*|--disable-*=*)
1987     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1988     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1989     eval list=\$$(toupper $thing)_LIST
1990     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1991     $action $(filter "$name" $list)
1992     ;;
1993     --enable-?*|--disable-?*)
1994     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1995     if is_in $option $COMPONENT_LIST; then
1996         test $action = disable && action=unset
1997         eval $action \$$(toupper ${option%s})_LIST
1998     elif is_in $option $CMDLINE_SELECT; then
1999         $action $option
2000     else
2001         die_unknown $opt
2002     fi
2003     ;;
2004     --list-*)
2005         NAME="${opt#--list-}"
2006         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2007         NAME=${NAME%s}
2008         eval show_list $NAME \$$(toupper $NAME)_LIST
2009     ;;
2010     --help|-h) show_help
2011     ;;
2012     *)
2013     optname="${opt%%=*}"
2014     optname="${optname#--}"
2015     optname=$(echo "$optname" | sed 's/-/_/g')
2016     if is_in $optname $CMDLINE_SET; then
2017         eval $optname='$optval'
2018     elif is_in $optname $CMDLINE_APPEND; then
2019         append $optname "$optval"
2020     else
2021          die_unknown $opt
2022     fi
2023     ;;
2024     esac
2025 done
2026
2027 disabled logging && logfile=/dev/null
2028
2029 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2030 set >> $logfile
2031
2032 test -n "$cross_prefix" && enable cross_compile
2033
2034 if enabled cross_compile; then
2035     test -n "$arch" && test -n "$target_os" ||
2036         die "Must specify target arch and OS when cross-compiling"
2037 fi
2038
2039 set_default arch target_os postproc_version
2040
2041 # Check if we should build alternative libpostproc version instead of current
2042 if   test "$postproc_version" = $ALT_PP_VER; then
2043   LIBPOSTPROC_VERSION=$ALT_PP_VER
2044   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2045   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2046   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2047 elif test "$postproc_version" != current; then
2048   die "Invalid argument to --postproc-version. See --help output."
2049 fi
2050
2051 ar_default="${cross_prefix}${ar_default}"
2052 cc_default="${cross_prefix}${cc_default}"
2053 cxx_default="${cross_prefix}${cxx_default}"
2054 nm_default="${cross_prefix}${nm_default}"
2055 pkg_config_default="${cross_prefix}${pkg_config_default}"
2056 ranlib="${cross_prefix}${ranlib}"
2057 strip_default="${cross_prefix}${strip_default}"
2058
2059 sysinclude_default="${sysroot}/usr/include"
2060
2061 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2062 enabled cross_compile || host_cc_default=$cc
2063 set_default host_cc
2064
2065 if ! $pkg_config --version >/dev/null 2>&1; then
2066     warn "$pkg_config not found, library detection may fail."
2067     pkg_config=false
2068 fi
2069
2070 exesuf() {
2071     case $1 in
2072         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2073     esac
2074 }
2075
2076 EXESUF=$(exesuf $target_os)
2077 HOSTEXESUF=$(exesuf $host_os)
2078
2079 # set temporary file name
2080 : ${TMPDIR:=$TEMPDIR}
2081 : ${TMPDIR:=$TMP}
2082 : ${TMPDIR:=/tmp}
2083
2084 if ! check_cmd mktemp -u XXXXXX; then
2085     # simple replacement for missing mktemp
2086     # NOT SAFE FOR GENERAL USE
2087     mktemp(){
2088         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2089     }
2090 fi
2091
2092 tmpfile(){
2093     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2094         (set -C; exec > $tmp) 2>/dev/null ||
2095         die "Unable to create temporary file in $TMPDIR."
2096     append TMPFILES $tmp
2097     eval $1=$tmp
2098 }
2099
2100 trap 'rm -f -- $TMPFILES' EXIT
2101
2102 tmpfile TMPASM .asm
2103 tmpfile TMPC   .c
2104 tmpfile TMPCPP .cpp
2105 tmpfile TMPE   $EXESUF
2106 tmpfile TMPH   .h
2107 tmpfile TMPO   .o
2108 tmpfile TMPS   .S
2109 tmpfile TMPSH  .sh
2110 tmpfile TMPV   .ver
2111
2112 unset -f mktemp
2113
2114 chmod +x $TMPE
2115
2116 # make sure we can execute files in $TMPDIR
2117 cat > $TMPSH 2>> $logfile <<EOF
2118 #! /bin/sh
2119 EOF
2120 chmod +x $TMPSH >> $logfile 2>&1
2121 if ! $TMPSH >> $logfile 2>&1; then
2122     cat <<EOF
2123 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2124 variable to another directory and make sure that it is not mounted noexec.
2125 EOF
2126     die "Sanity test failed."
2127 fi
2128
2129 filter_asflags=echo
2130 filter_cflags=echo
2131 filter_cppflags=echo
2132
2133 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2134     cc_type=llvm_gcc
2135     cc_version=__VERSION__
2136     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2137     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2138     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2139     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2140     speed_cflags='-O3'
2141     size_cflags='-Os'
2142 elif $cc -v 2>&1 | grep -qi ^gcc; then
2143     cc_type=gcc
2144     cc_version=__VERSION__
2145     gcc_version=$($cc --version | head -n1)
2146     gcc_basever=$($cc -dumpversion)
2147     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2148     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2149     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2150     if ! $cc -dumpversion | grep -q '^2\.'; then
2151         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2152         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2153     fi
2154     speed_cflags='-O3'
2155     size_cflags='-Os'
2156 elif $cc --version 2>/dev/null | grep -q Intel; then
2157     cc_type=icc
2158     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2159     cc_ident=$($cc --version | head -n1)
2160     icc_version=$($cc -dumpversion)
2161     CC_DEPFLAGS='-MMD'
2162     AS_DEPFLAGS='-MMD'
2163     speed_cflags='-O3'
2164     size_cflags='-Os'
2165     noopt_cflags='-O1'
2166 elif $cc -v 2>&1 | grep -q xlc; then
2167     cc_type=xlc
2168     cc_version="AV_STRINGIFY(__IBMC__)"
2169     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2170     speed_cflags='-O5'
2171     size_cflags='-O5 -qcompact'
2172 elif $cc -V 2>/dev/null | grep -q Compaq; then
2173     cc_type=ccc
2174     cc_version="AV_STRINGIFY(__DECC_VER)"
2175     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2176     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2177     debuglevel=3
2178     add_ldflags -Wl,-z,now # calls to libots crash without this
2179     speed_cflags='-fast'
2180     size_cflags='-O1'
2181 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2182     test -d "$sysroot" || die "No valid sysroot specified."
2183     cc_type=armcc
2184     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2185     cc_ident=$($cc --vsn | head -n1)
2186     armcc_conf="$PWD/armcc.conf"
2187     $cc --arm_linux_configure                 \
2188         --arm_linux_config_file="$armcc_conf" \
2189         --configure_sysroot="$sysroot"        \
2190         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2191         die "Error creating armcc configuration file."
2192     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2193     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2194     as_default="${cross_prefix}gcc"
2195     CC_DEPFLAGS='-MMD'
2196     AS_DEPFLAGS='-MMD'
2197     speed_cflags='-O3'
2198     size_cflags='-Os'
2199     filter_asflags="filter_out -W${armcc_opt}*"
2200 elif $cc -version 2>/dev/null | grep -q TMS470; then
2201     cc_type=tms470
2202     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2203     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2204     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2205     CC_O='-fr=$(@D)'
2206     as_default="${cross_prefix}gcc"
2207     ld_default="${cross_prefix}gcc"
2208     TMPO=$(basename $TMPC .c).o
2209     append TMPFILES $TMPO
2210     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2211     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2212     AS_DEPFLAGS='-MMD'
2213     speed_cflags='-O3 -mf=5'
2214     size_cflags='-O3 -mf=2'
2215     filter_cflags=tms470_flags
2216     tms470_flags(){
2217         for flag; do
2218             case $flag in
2219                 -march=*|-mcpu=*)
2220                     case "${flag#*=}" in
2221                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2222                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2223                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2224                         armv6*|arm11*)          echo -mv=6   ;;
2225                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2226                                                 echo -mv=5e  ;;
2227                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2228                     esac
2229                     ;;
2230                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2231                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2232                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2233                 -msoft-float)   echo --float_support=vfplib       ;;
2234                 -O[0-3]|-mf=*)  echo $flag                        ;;
2235                 -g)             echo -g -mn                       ;;
2236                 -pds=*)         echo $flag                        ;;
2237             esac
2238         done
2239     }
2240 elif $cc -v 2>&1 | grep -q clang; then
2241     cc_type=clang
2242     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2243         cc_version=__clang_version__ || cc_version=__VERSION__
2244     cc_ident=$($cc --version | head -n1)
2245     CC_DEPFLAGS='-MMD'
2246     AS_DEPFLAGS='-MMD'
2247     speed_cflags='-O3'
2248     size_cflags='-Os'
2249 elif $cc -V 2>&1 | grep -q Sun; then
2250     cc_type=suncc
2251     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2252     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2253     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2254     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2255     add_ldflags -xc99
2256     speed_cflags='-O5'
2257     size_cflags='-O5 -xspace'
2258     filter_cflags=suncc_flags
2259     suncc_flags(){
2260         for flag; do
2261             case $flag in
2262                 -march=*|-mcpu=*)
2263                     case "${flag#*=}" in
2264                         native)                   echo -xtarget=native       ;;
2265                         v9|niagara)               echo -xarch=sparc          ;;
2266                         ultrasparc)               echo -xarch=sparcvis       ;;
2267                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2268                         i586|pentium)             echo -xchip=pentium        ;;
2269                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2270                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2271                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2272                         pentium4*)          echo -xtarget=pentium4           ;;
2273                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2274                         *-sse3)             echo -xarch=sse3                 ;;
2275                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2276                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2277                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2278                         k8|opteron|athlon64|athlon-fx)
2279                                                   echo -xarch=sse2a          ;;
2280                         athlon*)                  echo -xarch=pentium_proa   ;;
2281                     esac
2282                     ;;
2283                 -std=c99)             echo -xc99              ;;
2284                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2285                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2286                 -W*,*)                echo $flag              ;;
2287                 -f*-*|-W*)                                    ;;
2288                 *)                    echo $flag              ;;
2289             esac
2290         done
2291     }
2292 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2293     cc_type=pathscale
2294     cc_version=__PATHSCALE__
2295     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2296     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2297     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2298     speed_cflags='-O2'
2299     size_cflags='-Os'
2300     filter_cflags='filter_out -Wdisabled-optimization'
2301 elif $cc -v 2>&1 | grep -q Open64; then
2302     cc_type=open64
2303     cc_version=__OPEN64__
2304     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2305     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2306     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2307     speed_cflags='-O2'
2308     size_cflags='-Os'
2309     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2310 fi
2311
2312 test -n "$cc_type" && enable $cc_type ||
2313     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2314
2315 : ${as_default:=$cc}
2316 : ${dep_cc_default:=$cc}
2317 : ${ld_default:=$cc}
2318 set_default ar as dep_cc ld
2319
2320 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2321 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2322 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2323
2324 add_cflags $extra_cflags
2325 add_cxxflags $extra_cxxflags
2326 add_asflags $extra_cflags
2327
2328 if test -n "$sysroot"; then
2329     case "$cc_type" in
2330         gcc|llvm_gcc|clang)
2331             add_cppflags --sysroot="$sysroot"
2332             add_ldflags --sysroot="$sysroot"
2333         ;;
2334         tms470)
2335             add_cppflags -I"$sysinclude"
2336             add_ldflags  --sysroot="$sysroot"
2337         ;;
2338     esac
2339 fi
2340
2341 if test "$cpu" = host; then
2342     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2343
2344     case "$cc_type" in
2345         gcc|llvm_gcc)
2346             check_native(){
2347                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2348                 sed -n "/cc1.*$1=/{
2349                             s/.*$1=\\([^ ]*\\).*/\\1/
2350                             p
2351                             q
2352                         }" $TMPE
2353             }
2354             cpu=$(check_native -march || check_native -mcpu)
2355         ;;
2356     esac
2357
2358     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2359 fi
2360
2361 # Deal with common $arch aliases
2362 case "$arch" in
2363     arm*|iPad*)
2364         arch="arm"
2365     ;;
2366     mips|mipsel|IP*)
2367         arch="mips"
2368     ;;
2369     mips64*)
2370         arch="mips"
2371         subarch="mips64"
2372     ;;
2373     parisc|hppa)
2374         arch="parisc"
2375     ;;
2376     parisc64|hppa64)
2377         arch="parisc"
2378         subarch="parisc64"
2379     ;;
2380     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2381         arch="ppc"
2382     ;;
2383     s390|s390x)
2384         arch="s390"
2385     ;;
2386     sh4|sh)
2387         arch="sh4"
2388     ;;
2389     sun4u|sparc64)
2390         arch="sparc"
2391         subarch="sparc64"
2392     ;;
2393     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2394         arch="x86"
2395     ;;
2396 esac
2397
2398 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2399 enable $arch
2400
2401 # Add processor-specific flags
2402 if test "$cpu" = generic; then
2403     : do nothing
2404 elif enabled ppc; then
2405
2406     case $(tolower $cpu) in
2407         601|ppc601|powerpc601)
2408             cpuflags="-mcpu=601"
2409             disable altivec
2410         ;;
2411         603*|ppc603*|powerpc603*)
2412             cpuflags="-mcpu=603"
2413             disable altivec
2414         ;;
2415         604*|ppc604*|powerpc604*)
2416             cpuflags="-mcpu=604"
2417             disable altivec
2418         ;;
2419         g3|75*|ppc75*|powerpc75*)
2420             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2421             disable altivec
2422         ;;
2423         g4|745*|ppc745*|powerpc745*)
2424             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2425         ;;
2426         74*|ppc74*|powerpc74*)
2427             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2428         ;;
2429         g5|970|ppc970|powerpc970|power4*)
2430             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2431         ;;
2432         cell)
2433             cpuflags="-mcpu=cell"
2434             enable ldbrx
2435         ;;
2436         e500v2)
2437             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2438             disable altivec
2439         ;;
2440         e500)
2441             cpuflags="-mcpu=8540 -mhard-float"
2442             disable altivec
2443         ;;
2444     esac
2445
2446 elif enabled x86; then
2447
2448     case $cpu in
2449         i[345]86|pentium)
2450             cpuflags="-march=$cpu"
2451             disable mmx
2452         ;;
2453         # targets that do NOT support conditional mov (cmov)
2454         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2455             cpuflags="-march=$cpu"
2456             disable cmov
2457         ;;
2458         # targets that do support conditional mov (cmov)
2459         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2460             cpuflags="-march=$cpu"
2461             enable cmov
2462             enable fast_cmov
2463         ;;
2464         # targets that do support conditional mov but on which it's slow
2465         pentium4|pentium4m|prescott|nocona)
2466             cpuflags="-march=$cpu"
2467             enable cmov
2468             disable fast_cmov
2469         ;;
2470     esac
2471
2472 elif enabled sparc; then
2473
2474     case $cpu in
2475         niagara)
2476             cpuflags="-mcpu=$cpu"
2477             disable vis
2478         ;;
2479         sparc64)
2480             cpuflags="-mcpu=v9"
2481         ;;
2482     esac
2483
2484 elif enabled arm; then
2485
2486     case $cpu in
2487         armv*)
2488             cpuflags="-march=$cpu"
2489             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2490         ;;
2491         *)
2492             cpuflags="-mcpu=$cpu"
2493             case $cpu in
2494                 cortex-a*)                               subarch=armv7a  ;;
2495                 cortex-r*)                               subarch=armv7r  ;;
2496                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2497                 arm11*)                                  subarch=armv6   ;;
2498                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2499                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2500             esac
2501         ;;
2502     esac
2503
2504 elif enabled alpha; then
2505
2506     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2507
2508 elif enabled bfin; then
2509
2510     cpuflags="-mcpu=$cpu"
2511
2512 elif enabled mips; then
2513
2514     cpuflags="-march=$cpu"
2515
2516 elif enabled avr32; then
2517
2518     case $cpu in
2519         ap7[02]0[0-2])
2520             subarch="avr32_ap"
2521             cpuflags="-mpart=$cpu"
2522         ;;
2523         ap)
2524             subarch="avr32_ap"
2525             cpuflags="-march=$cpu"
2526         ;;
2527         uc3[ab]*)
2528             subarch="avr32_uc"
2529             cpuflags="-mcpu=$cpu"
2530         ;;
2531         uc)
2532             subarch="avr32_uc"
2533             cpuflags="-march=$cpu"
2534         ;;
2535     esac
2536
2537 fi
2538
2539 add_cflags $cpuflags
2540 add_asflags $cpuflags
2541
2542 # compiler sanity check
2543 check_exec <<EOF
2544 int main(void){ return 0; }
2545 EOF
2546 if test "$?" != 0; then
2547     echo "$cc is unable to create an executable file."
2548     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2549         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2550         echo "Only do this if you know what cross compiling means."
2551     fi
2552     die "C compiler test failed."
2553 fi
2554
2555 add_cppflags -D_ISOC99_SOURCE
2556 add_cxxflags -D__STDC_CONSTANT_MACROS
2557 check_cflags -std=c99
2558 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2559 #include <stdlib.h>
2560 EOF
2561 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2562 #include <stdlib.h>
2563 EOF
2564
2565 check_host_cflags -std=c99
2566 check_host_cflags -Wall
2567
2568 case "$arch" in
2569     alpha|ia64|mips|parisc|sparc)
2570         spic=$shared
2571     ;;
2572     x86)
2573         subarch="x86_32"
2574         check_cc <<EOF && subarch="x86_64"
2575         int test[(int)sizeof(char*) - 7];
2576 EOF
2577         if test "$subarch" = "x86_64"; then
2578             spic=$shared
2579         fi
2580     ;;
2581     ppc)
2582         check_cc <<EOF && subarch="ppc64"
2583         int test[(int)sizeof(char*) - 7];
2584 EOF
2585     ;;
2586 esac
2587
2588 enable $subarch
2589 enabled spic && enable pic
2590
2591 # OS specific
2592 case $target_os in
2593     haiku)
2594         prefix_default="/boot/common"
2595         network_extralibs="-lnetwork"
2596         host_libs=
2597         ;;
2598     sunos)
2599         FFSERVERLDFLAGS=""
2600         SHFLAGS='-shared -Wl,-h,$$(@F)'
2601         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2602         network_extralibs="-lsocket -lnsl"
2603         add_cppflags -D__EXTENSIONS__
2604         # When using suncc to build, the Solaris linker will mark
2605         # an executable with each instruction set encountered by
2606         # the Solaris assembler.  As our libraries contain their own
2607         # guards for processor-specific code, instead suppress
2608         # generation of the HWCAPS ELF section on Solaris x86 only.
2609         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2610         nm_opts='-P -g'
2611         ;;
2612     netbsd)
2613         disable symver
2614         oss_indev_extralibs="-lossaudio"
2615         oss_outdev_extralibs="-lossaudio"
2616         ;;
2617     openbsd)
2618         enable malloc_aligned
2619         # On OpenBSD 4.5. the compiler does not use PIC unless
2620         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2621         # however the generated executable will not do anything
2622         # (simply quits with exit-code 1, no crash, no output).
2623         # Thus explicitly enable PIC here.
2624         enable pic
2625         disable symver
2626         SHFLAGS='-shared'
2627         oss_indev_extralibs="-lossaudio"
2628         oss_outdev_extralibs="-lossaudio"
2629         ;;
2630     dragonfly)
2631         enable malloc_aligned
2632         disable symver
2633         ;;
2634     freebsd)
2635         enable malloc_aligned
2636         ;;
2637     bsd/os)
2638         add_extralibs -lpoll -lgnugetopt
2639         strip="strip -d"
2640         ;;
2641     darwin)
2642         enable malloc_aligned
2643         gas="gas-preprocessor.pl $cc"
2644         enabled ppc && add_asflags -force_cpusubtype_ALL
2645         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2646         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2647         strip="${strip} -x"
2648         add_ldflags -Wl,-dynamic,-search_paths_first
2649         SLIBSUF=".dylib"
2650         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2651         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2652         FFSERVERLDFLAGS=-Wl,-bind_at_load
2653         objformat="macho"
2654         enabled x86_64 && objformat="macho64"
2655         enabled_any pic shared ||
2656             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2657         ;;
2658     mingw32*)
2659         if test $target_os = "mingw32ce"; then
2660             disable network
2661         else
2662             target_os=mingw32
2663         fi
2664         LIBTARGET=i386
2665         if enabled x86_64; then
2666             enable malloc_aligned
2667             LIBTARGET=x64
2668         elif enabled arm; then
2669             LIBTARGET=arm-wince
2670         fi
2671         shlibdir_default="$bindir_default"
2672         SLIBPREF=""
2673         SLIBSUF=".dll"
2674         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2675         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2676         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2677         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2678         SLIB_INSTALL_LINKS=
2679         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2680         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2681         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'
2682         objformat="win32"
2683         enable dos_paths
2684         check_cflags -fno-common
2685         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2686                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2687                 die "ERROR: MinGW runtime version must be >= 3.15."
2688         add_cppflags -U__STRICT_ANSI__
2689         ;;
2690     cygwin*)
2691         target_os=cygwin
2692         shlibdir_default="$bindir_default"
2693         SLIBPREF="cyg"
2694         SLIBSUF=".dll"
2695         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2696         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2697         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2698         objformat="win32"
2699         enable dos_paths
2700         check_cflags -fno-common
2701         add_cppflags -U__STRICT_ANSI__
2702         ;;
2703     *-dos|freedos|opendos)
2704         network_extralibs="-lsocket"
2705         objformat="coff"
2706         enable dos_paths
2707         add_cppflags -U__STRICT_ANSI__
2708         ;;
2709     linux)
2710         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2711         enable dv1394
2712         ;;
2713     irix*)
2714         target_os=irix
2715         ranlib="echo ignoring ranlib"
2716         ;;
2717     os/2*)
2718         strip="lxlite -CS"
2719         ln_s="cp -f"
2720         objformat="aout"
2721         add_cppflags -D_GNU_SOURCE
2722         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2723         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2724         FFSERVERLDFLAGS=""
2725         LIBSUF="_s.a"
2726         SLIBPREF=""
2727         SLIBSUF=".dll"
2728         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2729         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2730         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2731           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2732           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2733           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2734           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2735           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2736         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2737           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2738         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2739         enable dos_paths
2740         enable_weak os2threads
2741         ;;
2742     gnu/kfreebsd)
2743         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2744         ;;
2745     gnu)
2746         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2747         ;;
2748     qnx)
2749         add_cppflags -D_QNX_SOURCE
2750         network_extralibs="-lsocket"
2751         ;;
2752     symbian)
2753         SLIBSUF=".dll"
2754         enable dos_paths
2755         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2756         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2757         add_ldflags -Wl,--target1-abs,--no-undefined \
2758                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2759                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2760         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2761                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2762                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2763         ;;
2764     none)
2765         ;;
2766     *)
2767         die "Unknown OS '$target_os'."
2768         ;;
2769 esac
2770
2771 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2772
2773 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2774
2775 set_default $PATHS_LIST
2776
2777 # we need to build at least one lib type
2778 if ! enabled_any static shared; then
2779     cat <<EOF
2780 At least one library type must be built.
2781 Specify --enable-static to build the static libraries or --enable-shared to
2782 build the shared libraries as well. To only build the shared libraries specify
2783 --disable-static in addition to --enable-shared.
2784 EOF
2785     exit 1;
2786 fi
2787
2788 die_license_disabled() {
2789     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2790 }
2791
2792 die_license_disabled gpl libcdio
2793 die_license_disabled gpl libx264
2794 die_license_disabled gpl libxavs
2795 die_license_disabled gpl libxvid
2796 die_license_disabled gpl x11grab
2797
2798 die_license_disabled nonfree libaacplus
2799 die_license_disabled nonfree libfaac
2800 die_license_disabled nonfree openssl
2801
2802 die_license_disabled version3 libopencore_amrnb
2803 die_license_disabled version3 libopencore_amrwb
2804 die_license_disabled version3 libvo_aacenc
2805 die_license_disabled version3 libvo_amrwbenc
2806
2807 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2808
2809 disabled optimizations || check_cflags -fomit-frame-pointer
2810
2811 enable_pic() {
2812     enable pic
2813     add_cppflags -DPIC
2814     add_cflags   -fPIC
2815     add_asflags  -fPIC
2816 }
2817
2818 enabled pic && enable_pic
2819
2820 check_cc <<EOF || die "Symbol mangling check failed."
2821 int ff_extern;
2822 EOF
2823 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2824 extern_prefix=${sym%%ff_extern*}
2825
2826 check_cc <<EOF && enable inline_asm
2827 void foo(void) { __asm__ volatile ("" ::); }
2828 EOF
2829
2830 _restrict=
2831 for restrict_keyword in restrict __restrict__ __restrict; do
2832     check_cc <<EOF && _restrict=$restrict_keyword && break
2833 void foo(char * $restrict_keyword p);
2834 EOF
2835 done
2836
2837 check_cc <<EOF && enable attribute_packed
2838 struct { int x; } __attribute__((packed)) x;
2839 EOF
2840
2841 check_cc <<EOF && enable attribute_may_alias
2842 union { int x; } __attribute__((may_alias)) x;
2843 EOF
2844
2845 check_cc <<EOF || die "endian test failed"
2846 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2847 EOF
2848 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2849
2850 if enabled alpha; then
2851
2852     check_cflags -mieee
2853
2854 elif enabled arm; then
2855
2856     enabled thumb && check_cflags -mthumb || check_cflags -marm
2857     nogas=die
2858
2859     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2860         enable vfp_args
2861     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2862         case "${cross_prefix:-$cc}" in
2863             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2864             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2865 __asm__ (".eabi_attribute 28, 1");
2866 int main(void) { return 0; }
2867 EOF
2868         esac
2869         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2870     fi
2871
2872     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2873     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2874     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2875     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2876     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2877     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2878     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2879
2880     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2881
2882     enabled_all armv6t2 shared !pic && enable_pic
2883
2884 elif enabled mips; then
2885
2886     check_asm loongson '"dmult.g $1, $2, $3"'
2887     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2888
2889 elif enabled ppc; then
2890
2891     enable local_aligned_8 local_aligned_16
2892
2893     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2894     check_asm ibm_asm   '"add 0, 0, 0"'
2895     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2896     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2897
2898     # AltiVec flags: The FSF version of GCC differs from the Apple version
2899     if enabled altivec; then
2900         nogas=warn
2901         check_cflags -maltivec -mabi=altivec &&
2902         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2903         check_cflags -faltivec
2904
2905         # check if our compiler supports Motorola AltiVec C API
2906         check_cc <<EOF || disable altivec
2907 $inc_altivec_h
2908 int main(void) {
2909     vector signed int v1, v2, v3;
2910     v1 = vec_add(v2,v3);
2911     return 0;
2912 }
2913 EOF
2914
2915         # check if our compiler supports braces for vector declarations
2916         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2917 $inc_altivec_h
2918 int main (void) { (vector int) {1}; return 0; }
2919 EOF
2920     fi
2921
2922 elif enabled sparc; then
2923
2924     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2925         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2926
2927 elif enabled x86; then
2928
2929     enable local_aligned_8 local_aligned_16
2930
2931     # check whether EBP is available on x86
2932     # As 'i' is stored on the stack, this program will crash
2933     # if the base pointer is used to access it because the
2934     # base pointer is cleared in the inline assembly code.
2935     check_exec_crash <<EOF && enable ebp_available
2936     volatile int i=0;
2937     __asm__ volatile (
2938         "xorl %%ebp, %%ebp"
2939     ::: "%ebp");
2940     return i;
2941 EOF
2942
2943     # check whether EBX is available on x86
2944     check_asm ebx_available '""::"b"(0)' &&
2945         check_asm ebx_available '"":::"%ebx"'
2946
2947     # check whether xmm clobbers are supported
2948     check_asm xmm_clobbers '"":::"%xmm0"'
2949
2950     # check whether binutils is new enough to compile SSSE3/MMX2
2951     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2952     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2953
2954     if ! disabled_any asm mmx yasm; then
2955         if check_cmd $yasmexe --version; then
2956             enabled x86_64 && yasm_extra="-m amd64"
2957             yasm_debug="-g dwarf2"
2958         elif check_cmd nasm -v; then
2959             yasmexe=nasm
2960             yasm_debug="-g -F dwarf"
2961             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2962         fi
2963
2964         YASMFLAGS="-f $objformat $yasm_extra"
2965         enabled pic               && append YASMFLAGS "-DPIC"
2966         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2967         case "$objformat" in
2968             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2969         esac
2970
2971         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2972             die "yasm not found, use --disable-yasm for a crippled build"
2973         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2974     fi
2975
2976     case "$cpu" in
2977         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2978             disable fast_clz
2979         ;;
2980     esac
2981
2982 fi
2983
2984 if enabled asm; then
2985     as=${gas:=$as}
2986     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2987         $nogas "GNU assembler not found, install gas-preprocessor"
2988 fi
2989
2990 check_ldflags -Wl,--as-needed
2991
2992 if check_func dlopen; then
2993     ldl=
2994 elif check_func dlopen -ldl; then
2995     ldl=-ldl
2996 fi
2997
2998 if enabled network; then
2999     check_type "sys/types.h sys/socket.h" socklen_t
3000     check_type netdb.h "struct addrinfo"
3001     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3002     check_type netinet/in.h "struct sockaddr_in6"
3003     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3004     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3005     # Prefer arpa/inet.h over winsock2
3006     if check_header arpa/inet.h ; then
3007         check_func closesocket
3008     elif check_header winsock2.h ; then
3009         check_func_headers winsock2.h closesocket -lws2 && \
3010             network_extralibs="-lws2" || \
3011         { check_func_headers winsock2.h closesocket -lws2_32 && \
3012             network_extralibs="-lws2_32"; }
3013         check_type ws2tcpip.h socklen_t
3014         check_type ws2tcpip.h "struct addrinfo"
3015         check_type ws2tcpip.h "struct ipv6_mreq"
3016         check_type ws2tcpip.h "struct sockaddr_in6"
3017         check_type ws2tcpip.h "struct sockaddr_storage"
3018         check_struct winsock2.h "struct sockaddr" sa_len
3019     else
3020         disable network
3021     fi
3022 fi
3023
3024 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3025 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3026
3027 check_func  fcntl
3028 check_func  fork
3029 check_func  getaddrinfo $network_extralibs
3030 check_func  gethrtime
3031 check_func  getrusage
3032 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3033 check_func  inet_aton $network_extralibs
3034 check_func  isatty
3035 check_func  localtime_r
3036 check_func  ${malloc_prefix}memalign            && enable memalign
3037 check_func  mkstemp
3038 check_func  mmap
3039 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3040 check_func  setrlimit
3041 check_func  strerror_r
3042 check_func  strptime
3043 check_func  sched_getaffinity
3044 check_func  sysconf
3045 check_func  sysctl
3046 check_func_headers conio.h kbhit
3047 check_func_headers windows.h PeekNamedPipe
3048 check_func_headers io.h setmode
3049 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3050 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3051 check_func_headers windows.h GetProcessAffinityMask
3052 check_func_headers windows.h GetProcessTimes
3053 check_func_headers windows.h MapViewOfFile
3054 check_func_headers windows.h VirtualAlloc
3055
3056 check_header dlfcn.h
3057 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3058 check_header libcrystalhd/libcrystalhd_if.h
3059 check_header malloc.h
3060 check_header poll.h
3061 check_header sys/mman.h
3062 check_header sys/param.h
3063 check_header sys/resource.h
3064 check_header sys/select.h
3065 check_header termios.h
3066 check_header vdpau/vdpau.h
3067 check_header vdpau/vdpau_x11.h
3068 check_header X11/extensions/XvMClib.h
3069 check_header asm/types.h
3070
3071 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3072 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3073
3074 # check for VDA header
3075 if ! disabled vda; then
3076     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3077         enable vda
3078         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3079     fi
3080 fi
3081
3082 if ! disabled w32threads && ! enabled pthreads; then
3083     check_func _beginthreadex && enable w32threads
3084 fi
3085
3086 # check for some common methods of building with pthread support
3087 # do this before the optional library checks as some of them require pthreads
3088 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3089     enable pthreads
3090     if check_func pthread_create; then
3091         :
3092     elif check_func pthread_create -pthread; then
3093         add_cflags -pthread
3094         add_extralibs -pthread
3095     elif check_func pthread_create -pthreads; then
3096         add_cflags -pthreads
3097         add_extralibs -pthreads
3098     elif check_func pthread_create -lpthreadGC2; then
3099         add_extralibs -lpthreadGC2
3100     elif ! check_lib pthread.h pthread_create -lpthread; then
3101         disable pthreads
3102     fi
3103 fi
3104
3105 for thread in $THREADS_LIST; do
3106     if enabled $thread; then
3107         test -n "$thread_type" &&
3108             die "ERROR: Only one thread type must be selected." ||
3109             thread_type="$thread"
3110     fi
3111 done
3112
3113 check_lib math.h sin -lm && LIBM="-lm"
3114 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3115 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3116
3117 check_mathfunc cbrtf
3118 check_mathfunc exp2
3119 check_mathfunc exp2f
3120 check_mathfunc llrint
3121 check_mathfunc llrintf
3122 check_mathfunc log2
3123 check_mathfunc log2f
3124 check_mathfunc lrint
3125 check_mathfunc lrintf
3126 check_mathfunc round
3127 check_mathfunc roundf
3128 check_mathfunc trunc
3129 check_mathfunc truncf
3130
3131 # these are off by default, so fail if requested and not available
3132 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3133 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3134 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3135 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3136 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3137 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3138                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3139                         die "ERROR: libcelt version must be >= 0.11.0."; }
3140 enabled libdirac   && require_pkg_config dirac                          \
3141     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
3142     "dirac_decoder_init dirac_encoder_init"
3143 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3144 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3145 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3146 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3147 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3148 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3149 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3150 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3151 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3152 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3153 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3154 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3155 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3156 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3157 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3158     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3159     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3160 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3161 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3162 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3163 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3164 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3165 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3166 enabled libvpx     && {
3167     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3168                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3169     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3170                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3171 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3172                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3173                         die "ERROR: libx264 version must be >= 0.118."; }
3174 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3175 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3176 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3177                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3178                         die "ERROR: openal not found"; } &&
3179                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3180                         die "ERROR: openal version must be 1.1 or compatible"; }
3181 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3182                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3183                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3184                         die "ERROR: openssl not found"; }
3185
3186 # libdc1394 check
3187 if enabled libdc1394; then
3188     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3189         enable libdc1394_2; } ||
3190     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3191         enable libdc1394_1; } ||
3192     die "ERROR: No version of libdc1394 found "
3193 fi
3194
3195 SDL_CONFIG="${cross_prefix}sdl-config"
3196 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
3197     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3198     enable sdl &&
3199     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3200 else
3201   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3202     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3203     sdl_libs=$("${SDL_CONFIG}" --libs)
3204     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
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   fi
3209 fi
3210 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3211
3212 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3213 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3214
3215 check_header linux/fb.h
3216 check_header linux/videodev.h
3217 check_header linux/videodev2.h
3218 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3219
3220 check_header sys/videoio.h
3221
3222 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3223 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3224 # w32api 3.12 had it defined wrong
3225 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3226
3227 check_type "dshow.h" IBaseFilter
3228
3229 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3230 { check_header dev/bktr/ioctl_meteor.h &&
3231   check_header dev/bktr/ioctl_bt848.h; } ||
3232 { check_header machine/ioctl_meteor.h &&
3233   check_header machine/ioctl_bt848.h; } ||
3234 { check_header dev/video/meteor/ioctl_meteor.h &&
3235   check_header dev/video/bktr/ioctl_bt848.h; } ||
3236 check_header dev/ic/bt8xx.h
3237
3238 check_header sndio.h
3239 if check_struct sys/soundcard.h audio_buf_info bytes; then
3240     enable_safe sys/soundcard.h
3241 else
3242     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3243     #include <sys/soundcard.h>
3244     audio_buf_info abc;
3245 EOF
3246 fi
3247 check_header soundcard.h
3248
3249 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3250
3251 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3252
3253 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3254
3255 enabled libcdio &&
3256     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3257
3258 enabled x11grab                         &&
3259 check_header X11/Xlib.h                 &&
3260 check_header X11/extensions/XShm.h      &&
3261 check_header X11/extensions/Xfixes.h    &&
3262 check_func XOpenDisplay -lX11           &&
3263 check_func XShmCreateImage -lX11 -lXext &&
3264 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3265
3266 if ! disabled vaapi; then
3267     check_lib va/va.h vaInitialize -lva && {
3268         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3269         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3270     } || disable vaapi
3271 fi
3272
3273 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3274 check_cpp_condition \
3275     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3276     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3277       disable vdpau; }
3278 fi
3279
3280 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3281 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3282 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"
3283
3284 # add some useful compiler flags if supported
3285 check_cflags -Wdeclaration-after-statement
3286 check_cflags -Wall
3287 check_cflags -Wno-parentheses
3288 check_cflags -Wno-switch
3289 check_cflags -Wno-format-zero-length
3290 check_cflags -Wdisabled-optimization
3291 check_cflags -Wpointer-arith
3292 check_cflags -Wredundant-decls
3293 check_cflags -Wno-pointer-sign
3294 check_cflags -Wcast-qual
3295 check_cflags -Wwrite-strings
3296 check_cflags -Wtype-limits
3297 check_cflags -Wundef
3298 check_cflags -Wmissing-prototypes
3299 check_cflags -Wno-pointer-to-int-cast
3300 check_cflags -Wstrict-prototypes
3301 enabled extra_warnings && check_cflags -Winline
3302
3303 # add some linker flags
3304 check_ldflags -Wl,--warn-common
3305 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3306 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3307
3308 enabled xmm_clobber_test &&                             \
3309     check_ldflags -Wl,--wrap,avcodec_open2              \
3310                   -Wl,--wrap,avcodec_decode_audio4      \
3311                   -Wl,--wrap,avcodec_decode_video2      \
3312                   -Wl,--wrap,avcodec_decode_subtitle2   \
3313                   -Wl,--wrap,avcodec_encode_audio2      \
3314                   -Wl,--wrap,avcodec_encode_video       \
3315                   -Wl,--wrap,avcodec_encode_subtitle    \
3316                   -Wl,--wrap,sws_scale ||               \
3317     disable xmm_clobber_test
3318
3319 echo "X{};" > $TMPV
3320 if test_ldflags -Wl,--version-script,$TMPV; then
3321     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3322     check_cc <<EOF && enable symver_asm_label
3323 void ff_foo(void) __asm__ ("av_foo@VERSION");
3324 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3325 EOF
3326     check_cc <<EOF && enable symver_gnu_asm
3327 __asm__(".symver ff_foo,av_foo@VERSION");
3328 void ff_foo(void) {}
3329 EOF
3330 fi
3331
3332 if [ -n "$optflags" ]; then
3333     add_cflags $optflags
3334 elif enabled small; then
3335     add_cflags $size_cflags
3336 elif enabled optimizations; then
3337     add_cflags $speed_cflags
3338 else
3339     add_cflags $noopt_cflags
3340 fi
3341 check_cflags -fno-math-errno
3342 check_cflags -fno-signed-zeros
3343 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3344 int x;
3345 EOF
3346
3347
3348 if enabled icc; then
3349     # Just warnings, no remarks
3350     check_cflags -w1
3351     # -wd: Disable following warnings
3352     # 144, 167, 556: -Wno-pointer-sign
3353     # 1292: attribute "foo" ignored
3354     # 10006: ignoring unknown option -fno-signed-zeros
3355     # 10148: ignoring unknown option -Wno-parentheses
3356     # 10156: ignoring option '-W'; no argument required
3357     check_cflags -wd144,167,556,1292,10006,10148,10156
3358     # 11030: Warning unknown option --as-needed
3359     # 10156: ignoring option '-export'; no argument required
3360     check_ldflags -wd10156,11030
3361     # Allow to compile with optimizations
3362     check_ldflags -march=$cpu
3363     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3364     enable ebp_available
3365     if enabled x86_32; then
3366         test ${icc_version%%.*} -ge 11 && \
3367             check_cflags -falign-stack=maintain-16-byte || \
3368             disable aligned_stack
3369     fi
3370 elif enabled ccc; then
3371     # disable some annoying warnings
3372     add_cflags -msg_disable cvtu32to64
3373     add_cflags -msg_disable embedcomment
3374     add_cflags -msg_disable needconstext
3375     add_cflags -msg_disable nomainieee
3376     add_cflags -msg_disable ptrmismatch1
3377     add_cflags -msg_disable unreachcode
3378 elif enabled gcc; then
3379     check_cflags -fno-tree-vectorize
3380     check_cflags -Werror=implicit-function-declaration
3381     check_cflags -Werror=missing-prototypes
3382 elif enabled llvm_gcc; then
3383     check_cflags -mllvm -stack-alignment=16
3384 elif enabled clang; then
3385     check_cflags -mllvm -stack-alignment=16
3386     check_cflags -Qunused-arguments
3387 elif enabled armcc; then
3388     # 2523: use of inline assembler is deprecated
3389     add_cflags -W${armcc_opt},--diag_suppress=2523
3390     add_cflags -W${armcc_opt},--diag_suppress=1207
3391     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3392     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3393     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3394     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3395 elif enabled tms470; then
3396     add_cflags -pds=824 -pds=837
3397 elif enabled pathscale; then
3398     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3399 fi
3400
3401 enabled_any $THREADS_LIST      && enable threads
3402
3403 check_deps $CONFIG_LIST       \
3404            $CONFIG_EXTRA      \
3405            $HAVE_LIST         \
3406            $ALL_COMPONENTS    \
3407            $ALL_TESTS         \
3408
3409 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3410
3411 if test $target_os = "haiku"; then
3412     disable memalign
3413     disable posix_memalign
3414 fi
3415
3416 ! enabled_any memalign posix_memalign malloc_aligned &&
3417     enabled_any $need_memalign && enable memalign_hack
3418
3419 echo "install prefix            $prefix"
3420 echo "source path               $source_path"
3421 echo "C compiler                $cc"
3422 echo "ARCH                      $arch ($cpu)"
3423 if test "$build_suffix" != ""; then
3424     echo "build suffix              $build_suffix"
3425 fi
3426 if test "$progs_suffix" != ""; then
3427     echo "progs suffix              $progs_suffix"
3428 fi
3429 if test "$extra_version" != ""; then
3430     echo "version string suffix     $extra_version"
3431 fi
3432 echo "big-endian                ${bigendian-no}"
3433 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3434 if enabled x86; then
3435     echo "${yasmexe}                      ${yasm-no}"
3436     echo "MMX enabled               ${mmx-no}"
3437     echo "MMX2 enabled              ${mmx2-no}"
3438     echo "3DNow! enabled            ${amd3dnow-no}"
3439     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3440     echo "SSE enabled               ${sse-no}"
3441     echo "SSSE3 enabled             ${ssse3-no}"
3442     echo "AVX enabled               ${avx-no}"
3443     echo "CMOV enabled              ${cmov-no}"
3444     echo "CMOV is fast              ${fast_cmov-no}"
3445     echo "EBX available             ${ebx_available-no}"
3446     echo "EBP available             ${ebp_available-no}"
3447 fi
3448 if enabled arm; then
3449     echo "ARMv5TE enabled           ${armv5te-no}"
3450     echo "ARMv6 enabled             ${armv6-no}"
3451     echo "ARMv6T2 enabled           ${armv6t2-no}"
3452     echo "ARM VFP enabled           ${armvfp-no}"
3453     echo "IWMMXT enabled            ${iwmmxt-no}"
3454     echo "NEON enabled              ${neon-no}"
3455 fi
3456 if enabled mips; then
3457     echo "MMI enabled               ${mmi-no}"
3458 fi
3459 if enabled ppc; then
3460     echo "AltiVec enabled           ${altivec-no}"
3461     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3462     echo "dcbzl available           ${dcbzl-no}"
3463 fi
3464 if enabled sparc; then
3465     echo "VIS enabled               ${vis-no}"
3466 fi
3467 echo "debug symbols             ${debug-no}"
3468 echo "strip symbols             ${stripping-no}"
3469 echo "optimize for size         ${small-no}"
3470 echo "optimizations             ${optimizations-no}"
3471 echo "static                    ${static-no}"
3472 echo "shared                    ${shared-no}"
3473 echo "postprocessing support    ${postproc-no}"
3474 echo "new filter support        ${avfilter-no}"
3475 echo "network support           ${network-no}"
3476 echo "threading support         ${thread_type-no}"
3477 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3478 echo "SDL support               ${sdl-no}"
3479 echo "libdxva2 enabled          ${dxva2-no}"
3480 echo "libva enabled             ${vaapi-no}"
3481 echo "libvdpau enabled          ${vdpau-no}"
3482 echo "AVISynth enabled          ${avisynth-no}"
3483 echo "frei0r enabled            ${frei0r-no}"
3484 echo "gnutls enabled            ${gnutls-no}"
3485 echo "libaacplus enabled        ${libaacplus-no}"
3486 echo "libass enabled            ${libass-no}"
3487 echo "libcdio support           ${libcdio-no}"
3488 echo "libcelt enabled           ${libcelt-no}"
3489 echo "libdc1394 support         ${libdc1394-no}"
3490 echo "libdirac enabled          ${libdirac-no}"
3491 echo "libfaac enabled           ${libfaac-no}"
3492 echo "libgsm enabled            ${libgsm-no}"
3493 echo "libmodplug enabled        ${libmodplug-no}"
3494 echo "libmp3lame enabled        ${libmp3lame-no}"
3495 echo "libnut enabled            ${libnut-no}"
3496 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3497 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3498 echo "libopencv support         ${libopencv-no}"
3499 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3500 echo "libpulse enabled          ${libpulse-no}"
3501 echo "librtmp enabled           ${librtmp-no}"
3502 echo "libschroedinger enabled   ${libschroedinger-no}"
3503 echo "libspeex enabled          ${libspeex-no}"
3504 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3505 echo "libtheora enabled         ${libtheora-no}"
3506 echo "libutvideo enabled        ${libutvideo-no}"
3507 echo "libv4l2 enabled           ${libv4l2-no}"
3508 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3509 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3510 echo "libvorbis enabled         ${libvorbis-no}"
3511 echo "libvpx enabled            ${libvpx-no}"
3512 echo "libx264 enabled           ${libx264-no}"
3513 echo "libxavs enabled           ${libxavs-no}"
3514 echo "libxvid enabled           ${libxvid-no}"
3515 echo "openal enabled            ${openal-no}"
3516 echo "openssl enabled           ${openssl-no}"
3517 echo "zlib enabled              ${zlib-no}"
3518 echo "bzlib enabled             ${bzlib-no}"
3519 echo
3520
3521 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3522     echo "Enabled ${type}s:"
3523     eval list=\$$(toupper $type)_LIST
3524     print_enabled '_*' $list | sort | pr -r -3 -t
3525     echo
3526 done
3527
3528 license="LGPL version 2.1 or later"
3529 if enabled nonfree; then
3530     license="nonfree and unredistributable"
3531 elif enabled gplv3; then
3532     license="GPL version 3 or later"
3533 elif enabled lgplv3; then
3534     license="LGPL version 3 or later"
3535 elif enabled gpl; then
3536     license="GPL version 2 or later"
3537 fi
3538
3539 echo "License: $license"
3540
3541 echo "Creating config.mak and config.h..."
3542
3543 test -e Makefile || $ln_s "$source_path/Makefile" .
3544
3545 enabled stripping || strip="echo skipping strip"
3546
3547 config_files="$TMPH config.mak"
3548
3549 cat > config.mak <<EOF
3550 # Automatically generated by configure - do not modify!
3551 ifndef FFMPEG_CONFIG_MAK
3552 FFMPEG_CONFIG_MAK=1
3553 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3554 prefix=$prefix
3555 LIBDIR=\$(DESTDIR)$libdir
3556 SHLIBDIR=\$(DESTDIR)$shlibdir
3557 INCDIR=\$(DESTDIR)$incdir
3558 BINDIR=\$(DESTDIR)$bindir
3559 DATADIR=\$(DESTDIR)$datadir
3560 MANDIR=\$(DESTDIR)$mandir
3561 SRC_PATH=$source_path
3562 ifndef MAIN_MAKEFILE
3563 SRC_PATH:=\$(SRC_PATH:.%=..%)
3564 endif
3565 CC_IDENT=$cc_ident
3566 ARCH=$arch
3567 CC=$cc
3568 CXX=$cxx
3569 AS=$as
3570 LD=$ld
3571 DEPCC=$dep_cc
3572 YASM=$yasmexe
3573 YASMDEP=$yasmexe
3574 AR=$ar
3575 RANLIB=$ranlib
3576 CP=cp -p
3577 LN_S=$ln_s
3578 STRIP=$strip
3579 CPPFLAGS=$CPPFLAGS
3580 CFLAGS=$CFLAGS
3581 CXXFLAGS=$CXXFLAGS
3582 ASFLAGS=$ASFLAGS
3583 AS_O=$CC_O
3584 CC_O=$CC_O
3585 CXX_O=$CXX_O
3586 LDFLAGS=$LDFLAGS
3587 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3588 SHFLAGS=$SHFLAGS
3589 YASMFLAGS=$YASMFLAGS
3590 BUILDSUF=$build_suffix
3591 PROGSSUF=$progs_suffix
3592 FULLNAME=$FULLNAME
3593 LIBPREF=$LIBPREF
3594 LIBSUF=$LIBSUF
3595 LIBNAME=$LIBNAME
3596 SLIBPREF=$SLIBPREF
3597 SLIBSUF=$SLIBSUF
3598 EXESUF=$EXESUF
3599 EXTRA_VERSION=$extra_version
3600 DEPFLAGS=$DEPFLAGS
3601 CCDEP=$CCDEP
3602 CXXDEP=$CXXDEP
3603 ASDEP=$ASDEP
3604 CC_DEPFLAGS=$CC_DEPFLAGS
3605 AS_DEPFLAGS=$AS_DEPFLAGS
3606 HOSTCC=$host_cc
3607 HOSTCFLAGS=$host_cflags
3608 HOSTEXESUF=$HOSTEXESUF
3609 HOSTLDFLAGS=$host_ldflags
3610 HOSTLIBS=$host_libs
3611 TARGET_EXEC=$target_exec
3612 TARGET_PATH=$target_path
3613 SDL_LIBS=$sdl_libs
3614 SDL_CFLAGS=$sdl_cflags
3615 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3616 EXTRALIBS=$extralibs
3617 INSTALL=$install
3618 LIBTARGET=${LIBTARGET}
3619 SLIBNAME=${SLIBNAME}
3620 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3621 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3622 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3623 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3624 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3625 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3626 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3627 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3628 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3629 NOREDZONE_FLAGS=$noredzone_flags
3630 EOF
3631
3632 get_version(){
3633     name=$1
3634     file=$source_path/$2
3635 # This condition will be removed when we stop supporting old libpostproc versions
3636 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3637     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3638     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3639 fi
3640     lcname=$(tolower $name)
3641     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3642     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3643 }
3644
3645 get_version LIBAVCODEC  libavcodec/version.h
3646 get_version LIBAVDEVICE libavdevice/avdevice.h
3647 get_version LIBAVFILTER libavfilter/version.h
3648 get_version LIBAVFORMAT libavformat/version.h
3649 get_version LIBAVUTIL   libavutil/avutil.h
3650 get_version LIBPOSTPROC libpostproc/postprocess.h
3651 get_version LIBSWRESAMPLE libswresample/swresample.h
3652 get_version LIBSWSCALE  libswscale/swscale.h
3653
3654 cat > $TMPH <<EOF
3655 /* Automatically generated by configure - do not modify! */
3656 #ifndef FFMPEG_CONFIG_H
3657 #define FFMPEG_CONFIG_H
3658 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3659 #define FFMPEG_LICENSE "$(c_escape $license)"
3660 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3661 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3662 #define CC_TYPE "$cc_type"
3663 #define CC_VERSION $cc_version
3664 #define restrict $_restrict
3665 #define EXTERN_PREFIX "${extern_prefix}"
3666 #define EXTERN_ASM ${extern_prefix}
3667 #define SLIBSUF "$SLIBSUF"
3668 EOF
3669
3670 test -n "$malloc_prefix" &&
3671     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3672
3673 if enabled small || disabled optimizations; then
3674     echo "#undef  av_always_inline"  >> $TMPH
3675     if enabled small; then
3676         echo "#define av_always_inline inline"  >> $TMPH
3677     else
3678         echo "#define av_always_inline av_unused"  >> $TMPH
3679     fi
3680 fi
3681
3682 if enabled yasm; then
3683     append config_files $TMPASM
3684     printf '' >$TMPASM
3685 fi
3686
3687 print_config ARCH_   "$config_files" $ARCH_LIST
3688 print_config HAVE_   "$config_files" $HAVE_LIST
3689 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3690                                      $CONFIG_EXTRA      \
3691                                      $ALL_COMPONENTS    \
3692
3693 cat >>config.mak <<EOF
3694 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3695 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3696 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3697 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3698 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3699 EOF
3700
3701 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3702 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3703
3704 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3705 cp_if_changed $TMPH config.h
3706 touch .config
3707
3708 enabled yasm && cp_if_changed $TMPASM config.asm
3709
3710 cat > $TMPH <<EOF
3711 /* Generated by ffconf */
3712 #ifndef AVUTIL_AVCONFIG_H
3713 #define AVUTIL_AVCONFIG_H
3714 EOF
3715
3716 test "$postproc_version" != current && cat >> $TMPH <<EOF
3717 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3718 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3719 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3720 EOF
3721
3722 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3723
3724 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3725
3726 cp_if_changed $TMPH libavutil/avconfig.h
3727
3728 test -n "$WARNINGS" && printf "\n$WARNINGS"
3729
3730 # build pkg-config files
3731
3732 pkgconfig_generate(){
3733 name=$1
3734 shortname=${name#lib}${build_suffix}
3735 comment=$2
3736 version=$3
3737 libs=$4
3738 requires=$5
3739 enabled ${name#lib} || return 0
3740 mkdir -p $name
3741 cat <<EOF > $name/$name.pc
3742 prefix=$prefix
3743 exec_prefix=\${prefix}
3744 libdir=$libdir
3745 includedir=$incdir
3746
3747 Name: $name
3748 Description: $comment
3749 Version: $version
3750 Requires: $(enabled shared || echo $requires)
3751 Requires.private: $(enabled shared && echo $requires)
3752 Conflicts:
3753 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3754 Libs.private: $(enabled shared && echo $libs)
3755 Cflags: -I\${includedir}
3756 EOF
3757 cat <<EOF > $name/$name-uninstalled.pc
3758 prefix=
3759 exec_prefix=
3760 libdir=\${pcfiledir}
3761 includedir=${source_path}
3762
3763 Name: $name
3764 Description: $comment
3765 Version: $version
3766 Requires: $requires
3767 Conflicts:
3768 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3769 Cflags: -I\${includedir}
3770 EOF
3771 }
3772
3773 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3774 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3775 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3776 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3777 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3778 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3779 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3780 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"