avcodec/ansi: fix integer overflow
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58     cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Documentation options:
103   --disable-doc            do not build documentation
104   --disable-htmlpages      do not build HTML documentation pages
105   --disable-manpages       do not build man documentation pages
106   --disable-podpages       do not build POD documentation pages
107   --disable-txtpages       do not build text documentation pages
108
109 Component options:
110   --disable-ffmpeg         disable ffmpeg build
111   --disable-ffplay         disable ffplay build
112   --disable-ffprobe        disable ffprobe build
113   --disable-ffserver       disable ffserver build
114   --disable-avdevice       disable libavdevice build
115   --disable-avcodec        disable libavcodec build
116   --disable-avformat       disable libavformat build
117   --disable-swresample     disable libswresample build
118   --disable-swscale        disable libswscale build
119   --disable-postproc       disable libpostproc build
120   --disable-avfilter       disable libavfilter build
121   --enable-avresample      enable libavresample build [no]
122   --disable-pthreads       disable pthreads [auto]
123   --disable-w32threads     disable Win32 threads [auto]
124   --disable-os2threads     disable OS/2 threads [auto]
125   --enable-x11grab         enable X11 grabbing [no]
126   --disable-network        disable network support [no]
127   --disable-dct            disable DCT code
128   --disable-dwt            disable DWT code
129   --disable-lsp            disable LSP code
130   --disable-mdct           disable MDCT code
131   --disable-rdft           disable RDFT code
132   --disable-fft            disable FFT code
133   --enable-dxva2           enable DXVA2 code
134   --enable-vaapi           enable VAAPI code [autodetect]
135   --enable-vda             enable VDA code   [autodetect]
136   --enable-vdpau           enable VDPAU code [autodetect]
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176   --enable-avisynth        enable reading of AVISynth script files [no]
177   --enable-bzlib           enable bzlib [autodetect]
178   --enable-fontconfig      enable fontconfig
179   --enable-frei0r          enable frei0r video filtering
180   --enable-gnutls          enable gnutls [no]
181   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
182   --enable-libass          enable libass subtitles rendering [no]
183   --enable-libbluray       enable BluRay reading using libbluray [no]
184   --enable-libcaca         enable textual display using libcaca
185   --enable-libcelt         enable CELT decoding via libcelt [no]
186   --enable-libcdio         enable audio CD grabbing with libcdio
187   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
188                            and libraw1394 [no]
189   --enable-libfaac         enable AAC encoding via libfaac [no]
190   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
191   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
192   --enable-libfreetype     enable libfreetype [no]
193   --enable-libgsm          enable GSM de/encoding via libgsm [no]
194   --enable-libiec61883     enable iec61883 via libiec61883 [no]
195   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
196   --enable-libmodplug      enable ModPlug via libmodplug [no]
197   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
198   --enable-libnut          enable NUT (de)muxing via libnut,
199                            native (de)muxer exists [no]
200   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
201   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
202   --enable-libopencv       enable video filtering via libopencv [no]
203   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
204   --enable-libopus         enable Opus decoding via libopus [no]
205   --enable-libpulse        enable Pulseaudio input via libpulse [no]
206   --enable-librtmp         enable RTMP[E] support via librtmp [no]
207   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208   --enable-libspeex        enable Speex de/encoding via libspeex [no]
209   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
210   --enable-libtheora       enable Theora encoding via libtheora [no]
211   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
212   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
213   --enable-libv4l2         enable libv4l2/v4l-utils [no]
214   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
215   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
216   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
217                            native implementation exists [no]
218   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
219   --enable-libx264         enable H.264 encoding via x264 [no]
220   --enable-libxavs         enable AVS encoding via xavs [no]
221   --enable-libxvid         enable Xvid encoding via xvidcore,
222                            native MPEG-4/Xvid encoder exists [no]
223   --enable-openal          enable OpenAL 1.1 capture support [no]
224   --enable-openssl         enable openssl [no]
225   --enable-zlib            enable zlib [autodetect]
226
227 Advanced options (experts only):
228   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
229   --enable-cross-compile   assume a cross-compiler is used
230   --sysroot=PATH           root of cross-build tree
231   --sysinclude=PATH        location of cross-build system headers
232   --target-os=OS           compiler targets OS [$target_os]
233   --target-exec=CMD        command to run executables on target
234   --target-path=DIR        path to view of build directory on target
235   --toolchain=NAME         set tool defaults according to NAME
236   --nm=NM                  use nm tool NM [$nm_default]
237   --ar=AR                  use archive tool AR [$ar_default]
238   --as=AS                  use assembler AS [$as_default]
239   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
240   --cc=CC                  use C compiler CC [$cc_default]
241   --cxx=CXX                use C compiler CXX [$cxx_default]
242   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
243   --ld=LD                  use linker LD [$ld_default]
244   --host-cc=HOSTCC         use host C compiler HOSTCC
245   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
246   --host-ld=HOSTLD         use host linker HOSTLD
247   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
248   --host-libs=HLIBS        use libs HLIBS when linking for host
249   --host-os=OS             compiler host OS [$target_os]
250   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
251   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
252   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
253   --extra-libs=ELIBS       add ELIBS [$ELIBS]
254   --extra-version=STRING   version string suffix []
255   --optflags=OPTFLAGS      override optimization-related compiler flags
256   --build-suffix=SUFFIX    library name suffix []
257   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
258   --progs-suffix=SUFFIX    program name suffix []
259   --arch=ARCH              select architecture [$arch]
260   --cpu=CPU                select the minimum required CPU (affects
261                            instruction selection, may crash on older CPUs)
262   --enable-pic             build position-independent code
263   --enable-sram            allow use of on-chip SRAM
264   --enable-thumb           compile for Thumb instruction set
265   --disable-symver         disable symbol versioning
266   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
267   --disable-safe-bitstream-reader
268                            disable buffer boundary checking in bitreaders
269                            (faster, but may crash)
270   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
271
272 Optimization options (experts only):
273   --disable-asm            disable all assembler optimizations
274   --disable-altivec        disable AltiVec optimizations
275   --disable-amd3dnow       disable 3DNow! optimizations
276   --disable-amd3dnowext    disable 3DNow! extended optimizations
277   --disable-mmx            disable MMX optimizations
278   --disable-mmxext         disable MMXEXT optimizations
279   --disable-sse            disable SSE optimizations
280   --disable-sse2           disable SSE2 optimizations
281   --disable-sse3           disable SSE3 optimizations
282   --disable-ssse3          disable SSSE3 optimizations
283   --disable-sse4           disable SSE4 optimizations
284   --disable-sse42          disable SSE4.2 optimizations
285   --disable-avx            disable AVX optimizations
286   --disable-fma4           disable FMA4 optimizations
287   --disable-armv5te        disable armv5te optimizations
288   --disable-armv6          disable armv6 optimizations
289   --disable-armv6t2        disable armv6t2 optimizations
290   --disable-armvfp         disable ARM VFP optimizations
291   --disable-mmi            disable MMI optimizations
292   --disable-neon           disable NEON optimizations
293   --disable-vis            disable VIS optimizations
294   --disable-inline-asm     disable use of inline assembler
295   --disable-yasm           disable use of yasm assembler
296   --disable-mips32r2       disable MIPS32R2 optimizations
297   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
298   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
299   --disable-mipsfpu        disable floating point MIPS optimizations
300   --disable-fast-unaligned consider unaligned accesses slow
301   --postproc-version=V     build libpostproc version V.
302                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
303
304 Developer options (useful when working on FFmpeg itself):
305   --enable-coverage        build with test coverage instrumentation
306   --disable-debug          disable debugging symbols
307   --enable-debug=LEVEL     set the debug level [$debuglevel]
308   --disable-optimizations  disable compiler optimizations
309   --enable-extra-warnings  enable more compiler warnings
310   --disable-stripping      disable stripping of executables and shared libraries
311   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
312                            2 causes a slowdown at runtime.
313   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
314   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
315                            leaks and errors, using the specified valgrind binary.
316                            Cannot be combined with --target-exec
317   --samples=PATH           location of test samples for FATE, if not set use
318                            \$FATE_SAMPLES at make invocation time.
319   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
320                            should be used only for debugging purposes)
321   --enable-random          randomly enable/disable components
322   --disable-random
323   --enable-random=LIST     randomly enable/disable specific components or
324   --disable-random=LIST    component groups. LIST is a comma-separated list
325                            of NAME[:PROB] entries where NAME is a component
326                            (group) and PROB the probability associated with
327                            NAME (default 0.5).
328   --random-seed=VALUE      seed value for --enable/disable-random
329
330 NOTE: Object files are built at the place where configure is launched.
331 EOF
332   exit 0
333 }
334
335 quotes='""'
336
337 log(){
338     echo "$@" >> $logfile
339 }
340
341 log_file(){
342     log BEGIN $1
343     pr -n -t $1 >> $logfile
344     log END $1
345 }
346
347 echolog(){
348     log "$@"
349     echo "$@"
350 }
351
352 warn(){
353     log "WARNING: $*"
354     WARNINGS="${WARNINGS}WARNING: $*\n"
355 }
356
357 die(){
358     echolog "$@"
359     cat <<EOF
360
361 If you think configure made a mistake, make sure you are using the latest
362 version from Git.  If the latest version fails, report the problem to the
363 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
364 EOF
365     if disabled logging; then
366         cat <<EOF
367 Rerun configure with logging enabled (do not use --disable-logging), and
368 include the log this produces with your report.
369 EOF
370     else
371         cat <<EOF
372 Include the log file "$logfile" produced by configure as this will help
373 solving the problem.
374 EOF
375     fi
376     exit 1
377 }
378
379 # Avoid locale weirdness, besides we really just want to translate ASCII.
380 toupper(){
381     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
382 }
383
384 tolower(){
385     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
386 }
387
388 c_escape(){
389     echo "$*" | sed 's/["\\]/\\\0/g'
390 }
391
392 sh_quote(){
393     v=$(echo "$1" | sed "s/'/'\\\\''/g")
394     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
395     echo "$v"
396 }
397
398 cleanws(){
399     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
400 }
401
402 filter(){
403     pat=$1
404     shift
405     for v; do
406         eval "case $v in $pat) echo $v ;; esac"
407     done
408 }
409
410 filter_out(){
411     pat=$1
412     shift
413     for v; do
414         eval "case $v in $pat) ;; *) echo $v ;; esac"
415     done
416 }
417
418 map(){
419     m=$1
420     shift
421     for v; do eval $m; done
422 }
423
424 add_suffix(){
425     suffix=$1
426     shift
427     for v; do echo ${v}${suffix}; done
428 }
429
430 set_all(){
431     value=$1
432     shift
433     for var in $*; do
434         eval $var=$value
435     done
436 }
437
438 set_weak(){
439     value=$1
440     shift
441     for var; do
442         eval : \${$var:=$value}
443     done
444 }
445
446 set_safe(){
447     var=$1
448     shift
449     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
450 }
451
452 get_safe(){
453     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
454 }
455
456 pushvar(){
457     for var in $*; do
458         eval level=\${${var}_level:=0}
459         eval ${var}_${level}="\$$var"
460         eval ${var}_level=$(($level+1))
461     done
462 }
463
464 popvar(){
465     for var in $*; do
466         eval level=\${${var}_level:-0}
467         test $level = 0 && continue
468         eval level=$(($level-1))
469         eval $var="\${${var}_${level}}"
470         eval ${var}_level=$level
471         eval unset ${var}_${level}
472     done
473 }
474
475 enable(){
476     set_all yes $*
477 }
478
479 disable(){
480     set_all no $*
481 }
482
483 enable_weak(){
484     set_weak yes $*
485 }
486
487 disable_weak(){
488     set_weak no $*
489 }
490
491 enable_safe(){
492     for var; do
493         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
494     done
495 }
496
497 disable_safe(){
498     for var; do
499         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
500     done
501 }
502
503 do_enable_deep(){
504     for var; do
505         enabled $var && continue
506         eval sel="\$${var}_select"
507         eval sgs="\$${var}_suggest"
508         pushvar var sgs
509         enable_deep $sel
510         popvar sgs
511         enable_deep_weak $sgs
512         popvar var
513     done
514 }
515
516 enable_deep(){
517     do_enable_deep $*
518     enable $*
519 }
520
521 enable_deep_weak(){
522     do_enable_deep $*
523     enable_weak $*
524 }
525
526 enabled(){
527     test "${1#!}" = "$1" && op== || op=!=
528     eval test "x\$${1#!}" $op "xyes"
529 }
530
531 disabled(){
532     test "${1#!}" = "$1" && op== || op=!=
533     eval test "x\$${1#!}" $op "xno"
534 }
535
536 enabled_all(){
537     for opt; do
538         enabled $opt || return 1
539     done
540 }
541
542 disabled_all(){
543     for opt; do
544         disabled $opt || return 1
545     done
546 }
547
548 enabled_any(){
549     for opt; do
550         enabled $opt && return 0
551     done
552 }
553
554 disabled_any(){
555     for opt; do
556         disabled $opt && return 0
557     done
558     return 1
559 }
560
561 set_default(){
562     for opt; do
563         eval : \${$opt:=\$${opt}_default}
564     done
565 }
566
567 is_in(){
568     value=$1
569     shift
570     for var in $*; do
571         [ $var = $value ] && return 0
572     done
573     return 1
574 }
575
576 check_deps(){
577     for cfg; do
578         cfg="${cfg#!}"
579         enabled ${cfg}_checking && die "Circular dependency for $cfg."
580         disabled ${cfg}_checking && continue
581         enable ${cfg}_checking
582
583         eval dep_all="\$${cfg}_deps"
584         eval dep_any="\$${cfg}_deps_any"
585         eval dep_sel="\$${cfg}_select"
586         eval dep_sgs="\$${cfg}_suggest"
587         eval dep_ifa="\$${cfg}_if"
588         eval dep_ifn="\$${cfg}_if_any"
589
590         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
591         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
592         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
593
594         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
595         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
596         enabled_all  $dep_all || disable $cfg
597         enabled_any  $dep_any || disable $cfg
598         disabled_any $dep_sel && disable $cfg
599
600         if enabled $cfg; then
601             eval dep_extralibs="\$${cfg}_extralibs"
602             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
603             enable_deep $dep_sel
604             enable_deep_weak $dep_sgs
605         fi
606
607         disable ${cfg}_checking
608     done
609 }
610
611 print_config_h(){
612     enabled $1 && v=1 || v=0
613     echo "#define $2 $v"
614 }
615
616 print_config_mak(){
617     enabled $1 && v= || v=!
618     echo "$v$2=yes"
619 }
620
621 print_config_asm(){
622     enabled $1 && v=1 || v=0
623     echo "%define $2 $v"
624 }
625
626 print_config(){
627     pfx=$1
628     files=$2
629     shift 2
630     for cfg; do
631         ucname="$(toupper $cfg)"
632         for f in $files; do
633             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
634         done
635     done
636 }
637
638 print_enabled(){
639     test "$1" = -n && end=" " && shift || end="\n"
640     suf=$1
641     shift
642     for v; do
643         enabled $v && printf "%s$end" ${v%$suf};
644     done
645 }
646
647 append(){
648     var=$1
649     shift
650     eval "$var=\"\$$var $*\""
651 }
652
653 prepend(){
654     var=$1
655     shift
656     eval "$var=\"$* \$$var\""
657 }
658
659 add_cppflags(){
660     append CPPFLAGS "$@"
661 }
662
663 add_cflags(){
664     append CFLAGS $($cflags_filter "$@")
665 }
666
667 add_cxxflags(){
668     append CXXFLAGS $($cflags_filter "$@")
669 }
670
671 add_asflags(){
672     append ASFLAGS $($asflags_filter "$@")
673 }
674
675 add_ldflags(){
676     append LDFLAGS $($ldflags_filter "$@")
677 }
678
679 add_extralibs(){
680     prepend extralibs $($ldflags_filter "$@")
681 }
682
683 add_host_cflags(){
684     append host_cflags $($host_cflags_filter "$@")
685 }
686
687 add_host_ldflags(){
688     append host_ldflags $($host_ldflags_filter "$@")
689 }
690
691 check_cmd(){
692     log "$@"
693     "$@" >> $logfile 2>&1
694 }
695
696 cc_o(){
697     eval printf '%s\\n' $CC_O
698 }
699
700 cc_e(){
701     eval printf '%s\\n' $CC_E
702 }
703
704 check_cc(){
705     log check_cc "$@"
706     cat > $TMPC
707     log_file $TMPC
708     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
709 }
710
711 check_cxx(){
712     log check_cxx "$@"
713     cat > $TMPCPP
714     log_file $TMPCPP
715     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
716 }
717
718 check_cpp(){
719     log check_cpp "$@"
720     cat > $TMPC
721     log_file $TMPC
722     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
723 }
724
725 as_o(){
726     eval printf '%s\\n' $AS_O
727 }
728
729 check_as(){
730     log check_as "$@"
731     cat > $TMPC
732     log_file $TMPC
733     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
734 }
735
736 check_inline_asm(){
737     log check_inline_asm "$@"
738     name="$1"
739     code="$2"
740     shift 2
741     disable $name
742     check_as "$@" <<EOF && enable $name
743 void foo(void){ __asm__ volatile($code); }
744 EOF
745 }
746
747 check_yasm(){
748     log check_yasm "$@"
749     echo "$1" > $TMPS
750     log_file $TMPS
751     shift 1
752     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
753 }
754
755 ld_o(){
756     eval printf '%s\\n' $LD_O
757 }
758
759 check_ld(){
760     log check_ld "$@"
761     type=$1
762     shift 1
763     flags=''
764     libs=''
765     for f; do
766         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
767     done
768     check_$type $($cflags_filter $flags) || return
769     flags=$($ldflags_filter $flags)
770     libs=$($ldflags_filter $libs)
771     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
772 }
773
774 check_code(){
775     log check_code "$@"
776     check=$1
777     headers=$2
778     code=$3
779     shift 3
780     {
781         for hdr in $headers; do
782             echo "#include <$hdr>"
783         done
784         echo "int main(void) { $code; return 0; }"
785     } | check_$check "$@"
786 }
787
788 check_cppflags(){
789     log check_cppflags "$@"
790     check_cc "$@" <<EOF && append CPPFLAGS "$@"
791 int x;
792 EOF
793 }
794
795 check_cflags(){
796     log check_cflags "$@"
797     set -- $($cflags_filter "$@")
798     check_cc "$@" <<EOF && append CFLAGS "$@"
799 int x;
800 EOF
801 }
802
803 check_cxxflags(){
804     log check_cxxflags "$@"
805     set -- $($cflags_filter "$@")
806     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
807 int x;
808 EOF
809 }
810
811 test_ldflags(){
812     log test_ldflags "$@"
813     check_ld "cc" "$@" <<EOF
814 int main(void){ return 0; }
815 EOF
816 }
817
818 check_ldflags(){
819     log check_ldflags "$@"
820     test_ldflags "$@" && add_ldflags "$@"
821 }
822
823 check_header(){
824     log check_header "$@"
825     header=$1
826     shift
827     disable_safe $header
828     check_cpp "$@" <<EOF && enable_safe $header
829 #include <$header>
830 int x;
831 EOF
832 }
833
834 check_func(){
835     log check_func "$@"
836     func=$1
837     shift
838     disable $func
839     check_ld "cc" "$@" <<EOF && enable $func
840 extern int $func();
841 int main(void){ $func(); }
842 EOF
843 }
844
845 check_mathfunc(){
846     log check_mathfunc "$@"
847     func=$1
848     shift
849     disable $func
850     check_ld "cc" "$@" <<EOF && enable $func
851 #include <math.h>
852 float foo(float f) { return $func(f); }
853 int main(void){ return (int) foo; }
854 EOF
855 }
856
857 check_func_headers(){
858     log check_func_headers "$@"
859     headers=$1
860     funcs=$2
861     shift 2
862     {
863         for hdr in $headers; do
864             echo "#include <$hdr>"
865         done
866         for func in $funcs; do
867             echo "long check_$func(void) { return (long) $func; }"
868         done
869         echo "int main(void) { return 0; }"
870     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
871 }
872
873 check_class_headers_cpp(){
874     log check_class_headers_cpp "$@"
875     headers=$1
876     classes=$2
877     shift 2
878     {
879         for hdr in $headers; do
880             echo "#include <$hdr>"
881         done
882         echo "int main(void) { "
883         i=1
884         for class in $classes; do
885             echo "$class obj$i;"
886             i=$(expr $i + 1)
887         done
888         echo "return 0; }"
889     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
890 }
891
892 check_cpp_condition(){
893     log check_cpp_condition "$@"
894     header=$1
895     condition=$2
896     shift 2
897     check_cpp "$@" <<EOF
898 #include <$header>
899 #if !($condition)
900 #error "unsatisfied condition: $condition"
901 #endif
902 EOF
903 }
904
905 check_lib(){
906     log check_lib "$@"
907     header="$1"
908     func="$2"
909     shift 2
910     check_header $header && check_func $func "$@" && add_extralibs "$@"
911 }
912
913 check_lib2(){
914     log check_lib2 "$@"
915     headers="$1"
916     funcs="$2"
917     shift 2
918     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
919 }
920
921 check_lib_cpp(){
922     log check_lib_cpp "$@"
923     headers="$1"
924     classes="$2"
925     shift 2
926     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
927 }
928
929 check_pkg_config(){
930     log check_pkg_config "$@"
931     pkg="$1"
932     headers="$2"
933     funcs="$3"
934     shift 3
935     $pkg_config --exists $pkg 2>/dev/null || return
936     pkg_cflags=$($pkg_config --cflags $pkg)
937     pkg_libs=$($pkg_config --libs $pkg)
938     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
939         set_safe ${pkg}_cflags $pkg_cflags   &&
940         set_safe ${pkg}_libs   $pkg_libs
941 }
942
943 check_exec(){
944     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
945 }
946
947 check_exec_crash(){
948     code=$(cat)
949
950     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
951     # are safe but may not be available everywhere.  Thus we use
952     # raise(SIGTERM) instead.  The check is run in a subshell so we
953     # can redirect the "Terminated" message from the shell.  SIGBUS
954     # is not defined by standard C so it is used conditionally.
955
956     (check_exec "$@") >> $logfile 2>&1 <<EOF
957 #include <signal.h>
958 static void sighandler(int sig){
959     raise(SIGTERM);
960 }
961 int func(void){
962     $code
963 }
964 int (*func_ptr)(void) = func;
965 int main(void){
966     signal(SIGILL, sighandler);
967     signal(SIGFPE, sighandler);
968     signal(SIGSEGV, sighandler);
969 #ifdef SIGBUS
970     signal(SIGBUS, sighandler);
971 #endif
972     return func_ptr();
973 }
974 EOF
975 }
976
977 check_type(){
978     log check_type "$@"
979     headers=$1
980     type=$2
981     shift 2
982     disable_safe "$type"
983     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
984 }
985
986 check_struct(){
987     log check_type "$@"
988     headers=$1
989     struct=$2
990     member=$3
991     shift 3
992     disable_safe "${struct}_${member}"
993     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
994         enable_safe "${struct}_${member}"
995 }
996
997 require(){
998     name="$1"
999     header="$2"
1000     func="$3"
1001     shift 3
1002     check_lib $header $func "$@" || die "ERROR: $name not found"
1003 }
1004
1005 require2(){
1006     name="$1"
1007     headers="$2"
1008     func="$3"
1009     shift 3
1010     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1011 }
1012
1013 require_cpp(){
1014     name="$1"
1015     headers="$2"
1016     classes="$3"
1017     shift 3
1018     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1019 }
1020
1021 require_pkg_config(){
1022     pkg="$1"
1023     check_pkg_config "$@" || die "ERROR: $pkg not found"
1024     add_cflags    $(get_safe ${pkg}_cflags)
1025     add_extralibs $(get_safe ${pkg}_libs)
1026 }
1027
1028 hostcc_o(){
1029     eval printf '%s\\n' $HOSTCC_O
1030 }
1031
1032 check_host_cc(){
1033     log check_host_cc "$@"
1034     cat > $TMPC
1035     log_file $TMPC
1036     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1037 }
1038
1039 check_host_cflags(){
1040     log check_host_cflags "$@"
1041     set -- $($host_cflags_filter "$@")
1042     check_host_cc "$@" <<EOF && append host_cflags "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 apply(){
1048     file=$1
1049     shift
1050     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1051 }
1052
1053 cp_if_changed(){
1054     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1055     mkdir -p "$(dirname $2)"
1056     cp -f "$1" "$2"
1057 }
1058
1059 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1060 # system-dependent things.
1061
1062 COMPONENT_LIST="
1063     bsfs
1064     decoders
1065     demuxers
1066     encoders
1067     filters
1068     hwaccels
1069     indevs
1070     muxers
1071     outdevs
1072     parsers
1073     protocols
1074 "
1075
1076 DOCUMENT_LIST="
1077     doc
1078     htmlpages
1079     manpages
1080     podpages
1081     txtpages
1082 "
1083
1084 PROGRAM_LIST="
1085     ffplay
1086     ffprobe
1087     ffserver
1088     ffmpeg
1089 "
1090
1091 CONFIG_LIST="
1092     $COMPONENT_LIST
1093     $DOCUMENT_LIST
1094     $PROGRAM_LIST
1095     avcodec
1096     avdevice
1097     avfilter
1098     avformat
1099     avresample
1100     avisynth
1101     bzlib
1102     crystalhd
1103     dct
1104     dwt
1105     dxva2
1106     fast_unaligned
1107     fft
1108     fontconfig
1109     frei0r
1110     gnutls
1111     gpl
1112     gray
1113     hardcoded_tables
1114     incompatible_fork_abi
1115     libaacplus
1116     libass
1117     libbluray
1118     libcaca
1119     libcdio
1120     libcelt
1121     libdc1394
1122     libfaac
1123     libfdk_aac
1124     libflite
1125     libfreetype
1126     libgsm
1127     libiec61883
1128     libilbc
1129     libmodplug
1130     libmp3lame
1131     libnut
1132     libopencore_amrnb
1133     libopencore_amrwb
1134     libopencv
1135     libopenjpeg
1136     libopus
1137     libpulse
1138     librtmp
1139     libschroedinger
1140     libspeex
1141     libstagefright_h264
1142     libtheora
1143     libtwolame
1144     libutvideo
1145     libv4l2
1146     libvo_aacenc
1147     libvo_amrwbenc
1148     libvorbis
1149     libvpx
1150     libx264
1151     libxavs
1152     libxvid
1153     lsp
1154     mdct
1155     memalign_hack
1156     memory_poisoning
1157     network
1158     nonfree
1159     openal
1160     openssl
1161     pic
1162     postproc
1163     rdft
1164     runtime_cpudetect
1165     safe_bitstream_reader
1166     shared
1167     small
1168     sram
1169     static
1170     swresample
1171     swscale
1172     swscale_alpha
1173     thumb
1174     vaapi
1175     vda
1176     vdpau
1177     version3
1178     xmm_clobber_test
1179     x11grab
1180     zlib
1181 "
1182
1183 THREADS_LIST='
1184     pthreads
1185     w32threads
1186     os2threads
1187 '
1188
1189 ARCH_LIST='
1190     alpha
1191     arm
1192     avr32
1193     avr32_ap
1194     avr32_uc
1195     bfin
1196     ia64
1197     m68k
1198     mips
1199     mips64
1200     parisc
1201     ppc
1202     ppc64
1203     s390
1204     sh4
1205     sparc
1206     sparc64
1207     tomi
1208     x86
1209     x86_32
1210     x86_64
1211 '
1212
1213 ARCH_EXT_LIST_X86='
1214     amd3dnow
1215     amd3dnowext
1216     avx
1217     fma4
1218     mmx
1219     mmxext
1220     sse
1221     sse2
1222     sse3
1223     sse4
1224     sse42
1225     ssse3
1226 '
1227
1228 ARCH_EXT_LIST="
1229     $ARCH_EXT_LIST_X86
1230     altivec
1231     armv5te
1232     armv6
1233     armv6t2
1234     armvfp
1235     mmi
1236     neon
1237     ppc4xx
1238     vfpv3
1239     vis
1240     mipsfpu
1241     mips32r2
1242     mipsdspr1
1243     mipsdspr2
1244 "
1245
1246 HAVE_LIST_PUB='
1247     bigendian
1248     fast_unaligned
1249     incompatible_fork_abi
1250 '
1251
1252 HAVE_LIST="
1253     $ARCH_EXT_LIST
1254     $(add_suffix _external $ARCH_EXT_LIST)
1255     $(add_suffix _inline   $ARCH_EXT_LIST)
1256     $HAVE_LIST_PUB
1257     $THREADS_LIST
1258     aligned_malloc
1259     aligned_stack
1260     alsa_asoundlib_h
1261     altivec_h
1262     arpa_inet_h
1263     asm_mod_q
1264     asm_mod_y
1265     asm_types_h
1266     attribute_may_alias
1267     attribute_packed
1268     broken_snprintf
1269     cbrtf
1270     clock_gettime
1271     closesocket
1272     cmov
1273     cpuid
1274     cpunop
1275     dcbzl
1276     dev_bktr_ioctl_bt848_h
1277     dev_bktr_ioctl_meteor_h
1278     dev_ic_bt8xx_h
1279     dev_video_bktr_ioctl_bt848_h
1280     dev_video_meteor_ioctl_meteor_h
1281     direct_h
1282     dlfcn_h
1283     dlopen
1284     dos_paths
1285     dxva_h
1286     ebp_available
1287     ebx_available
1288     exp2
1289     exp2f
1290     fast_64bit
1291     fast_clz
1292     fast_cmov
1293     fcntl
1294     fork
1295     getaddrinfo
1296     gethrtime
1297     getopt
1298     GetProcessAffinityMask
1299     GetProcessMemoryInfo
1300     GetProcessTimes
1301     GetSystemTimeAsFileTime
1302     getrusage
1303     gettimeofday
1304     glob
1305     gnu_as
1306     ibm_asm
1307     inet_aton
1308     inline_asm
1309     io_h
1310     isatty
1311     isinf
1312     isnan
1313     jack_port_get_latency_range
1314     kbhit
1315     ldbrx
1316     libdc1394_1
1317     libdc1394_2
1318     llrint
1319     llrintf
1320     local_aligned_16
1321     local_aligned_8
1322     localtime_r
1323     log2
1324     log2f
1325     loongson
1326     lrint
1327     lrintf
1328     lzo1x_999_compress
1329     machine_ioctl_bt848_h
1330     machine_ioctl_meteor_h
1331     makeinfo
1332     malloc_h
1333     MapViewOfFile
1334     memalign
1335     mkstemp
1336     mm_empty
1337     mmap
1338     msvcrt
1339     nanosleep
1340     PeekNamedPipe
1341     perl
1342     pod2man
1343     poll_h
1344     posix_memalign
1345     pthread_cancel
1346     rdtsc
1347     rint
1348     round
1349     roundf
1350     rweflags
1351     sched_getaffinity
1352     sdl
1353     sdl_video_size
1354     setmode
1355     setrlimit
1356     Sleep
1357     sndio_h
1358     socklen_t
1359     soundcard_h
1360     strerror_r
1361     struct_addrinfo
1362     struct_group_source_req
1363     struct_ip_mreq_source
1364     struct_ipv6_mreq
1365     struct_pollfd
1366     struct_rusage_ru_maxrss
1367     struct_sctp_event_subscribe
1368     struct_sockaddr_in6
1369     struct_sockaddr_sa_len
1370     struct_sockaddr_storage
1371     struct_v4l2_frmivalenum_discrete
1372     symver
1373     symver_asm_label
1374     symver_gnu_asm
1375     sysconf
1376     sysctl
1377     sys_mman_h
1378     sys_param_h
1379     sys_resource_h
1380     sys_select_h
1381     sys_soundcard_h
1382     sys_time_h
1383     sys_videoio_h
1384     termios_h
1385     texi2html
1386     threads
1387     trunc
1388     truncf
1389     unistd_h
1390     usleep
1391     vfp_args
1392     VirtualAlloc
1393     windows_h
1394     winsock2_h
1395     xform_asm
1396     xgetbv
1397     xmm_clobbers
1398     yasm
1399 "
1400
1401 # options emitted with CONFIG_ prefix but not available on command line
1402 CONFIG_EXTRA="
1403     aandcttables
1404     ac3dsp
1405     avutil
1406     error_resilience
1407     gcrypt
1408     golomb
1409     gplv3
1410     h264chroma
1411     h264dsp
1412     h264pred
1413     h264qpel
1414     huffman
1415     lgplv3
1416     lpc
1417     mpegaudiodsp
1418     mpegvideo
1419     mpegvideoenc
1420     nettle
1421     rangecoder
1422     rtpdec
1423     sinewin
1424     vp3dsp
1425 "
1426
1427 CMDLINE_SELECT="
1428     $ARCH_EXT_LIST
1429     $CONFIG_LIST
1430     $THREADS_LIST
1431     asm
1432     coverage
1433     cross_compile
1434     debug
1435     extra_warnings
1436     inline_asm
1437     logging
1438     optimizations
1439     stripping
1440     symver
1441     yasm
1442 "
1443
1444 PATHS_LIST='
1445     bindir
1446     datadir
1447     incdir
1448     libdir
1449     mandir
1450     prefix
1451     shlibdir
1452 '
1453
1454 CMDLINE_SET="
1455     $PATHS_LIST
1456     ar
1457     arch
1458     as
1459     assert_level
1460     build_suffix
1461     cc
1462     cpu
1463     cross_prefix
1464     cxx
1465     dep_cc
1466     extra_version
1467     host_cc
1468     host_cflags
1469     host_ld
1470     host_ldflags
1471     host_libs
1472     host_os
1473     install
1474     ld
1475     logfile
1476     malloc_prefix
1477     nm
1478     optflags
1479     pkg_config
1480     postproc_version
1481     progs_suffix
1482     random_seed
1483     samples
1484     strip
1485     sysinclude
1486     sysroot
1487     target_exec
1488     target_os
1489     target_path
1490     toolchain
1491     valgrind
1492     yasmexe
1493 "
1494
1495 CMDLINE_APPEND="
1496     extra_cflags
1497     extra_cxxflags
1498 "
1499
1500 # code dependency declarations
1501
1502 # architecture extensions
1503
1504 armv5te_deps="arm"
1505 armv6_deps="arm"
1506 armv6t2_deps="arm"
1507 armvfp_deps="arm"
1508 neon_deps="arm"
1509 vfpv3_deps="armvfp"
1510
1511 mipsfpu_deps="mips"
1512 mips32r2_deps="mips"
1513 mipsdspr1_deps="mips"
1514 mipsdspr2_deps="mips"
1515 mmi_deps="mips"
1516
1517 altivec_deps="ppc"
1518 ppc4xx_deps="ppc"
1519
1520 vis_deps="sparc"
1521
1522 x86_64_suggest="cmov fast_cmov"
1523
1524 amd3dnow_deps="mmx"
1525 amd3dnowext_deps="amd3dnow"
1526 mmx_deps="x86"
1527 mmxext_deps="mmx"
1528 sse_deps="mmxext"
1529 sse2_deps="sse"
1530 sse3_deps="sse2"
1531 ssse3_deps="sse3"
1532 sse4_deps="ssse3"
1533 sse42_deps="sse4"
1534 avx_deps="sse42"
1535 fma4_deps="avx"
1536
1537 mmx_external_deps="yasm"
1538 mmx_inline_deps="inline_asm"
1539 mmx_suggest="mmx_external mmx_inline"
1540
1541 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1542     eval dep=\$${ext}_deps
1543     eval ${ext}_external_deps='"${dep}_external"'
1544     eval ${ext}_inline_deps='"${dep}_inline"'
1545     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1546 done
1547
1548 aligned_stack_if_any="ppc x86"
1549 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1550 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1551 fast_unaligned_if_any="armv6 ppc x86"
1552
1553 inline_asm_deps="!tms470"
1554 need_memalign="altivec neon sse"
1555
1556 symver_if_any="symver_asm_label symver_gnu_asm"
1557
1558 log2_deps="!msvcrt"
1559
1560 # subsystems
1561 dct_select="rdft"
1562 mdct_select="fft"
1563 rdft_select="fft"
1564 mpegaudiodsp_select="dct"
1565 mpegvideoenc_select="mpegvideo"
1566
1567 # decoders / encoders / hardware accelerators
1568 aac_decoder_select="mdct sinewin"
1569 aac_encoder_select="mdct sinewin"
1570 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1571 ac3_decoder_select="mdct ac3dsp ac3_parser"
1572 ac3_encoder_select="mdct ac3dsp"
1573 ac3_fixed_encoder_select="mdct ac3dsp"
1574 alac_encoder_select="lpc"
1575 amrnb_decoder_select="lsp"
1576 amrwb_decoder_select="lsp"
1577 amv_encoder_select="aandcttables"
1578 atrac1_decoder_select="mdct sinewin"
1579 atrac3_decoder_select="mdct"
1580 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1581 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1582 cavs_decoder_select="golomb mpegvideo"
1583 cook_decoder_select="mdct sinewin"
1584 cscd_decoder_suggest="zlib"
1585 dca_decoder_select="mdct"
1586 dirac_decoder_select="dwt golomb"
1587 dnxhd_encoder_select="aandcttables mpegvideoenc"
1588 dxa_decoder_select="zlib"
1589 eac3_decoder_select="ac3_decoder"
1590 eac3_encoder_select="ac3_encoder"
1591 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1592 eatgq_decoder_select="aandcttables"
1593 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1594 exr_decoder_select="zlib"
1595 ffv1_decoder_select="golomb rangecoder"
1596 ffv1_encoder_select="rangecoder"
1597 ffvhuff_encoder_select="huffman"
1598 flac_decoder_select="golomb"
1599 flac_encoder_select="golomb lpc"
1600 flashsv_decoder_select="zlib"
1601 flashsv_encoder_select="zlib"
1602 flashsv2_encoder_select="zlib"
1603 flashsv2_decoder_select="zlib"
1604 flv_decoder_select="h263_decoder"
1605 flv_encoder_select="h263_encoder"
1606 fraps_decoder_select="huffman"
1607 h261_decoder_select="error_resilience mpegvideo"
1608 h261_encoder_select="aandcttables mpegvideoenc"
1609 h263_decoder_select="error_resilience h263_parser mpegvideo"
1610 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1611 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1612 h263i_decoder_select="h263_decoder"
1613 h263p_encoder_select="h263_encoder"
1614 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1615 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1616 h264_dxva2_hwaccel_deps="dxva2api_h"
1617 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1618 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1619 h264_vda_decoder_select="vda h264_parser h264_decoder"
1620 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1621 h264_vda_hwaccel_select="vda h264_decoder"
1622 h264_vdpau_decoder_select="vdpau h264_decoder"
1623 huffyuv_encoder_select="huffman"
1624 iac_decoder_select="fft mdct sinewin"
1625 imc_decoder_select="fft mdct sinewin"
1626 jpegls_decoder_select="golomb"
1627 jpegls_encoder_select="golomb"
1628 ljpeg_encoder_select="aandcttables mpegvideoenc"
1629 loco_decoder_select="golomb"
1630 mdec_decoder_select="error_resilience mpegvideo"
1631 mjpeg_encoder_select="aandcttables mpegvideoenc"
1632 mlp_decoder_select="mlp_parser"
1633 mp1_decoder_select="mpegaudiodsp"
1634 mp1float_decoder_select="mpegaudiodsp"
1635 mp2_decoder_select="mpegaudiodsp"
1636 mp2float_decoder_select="mpegaudiodsp"
1637 mp3_decoder_select="mpegaudiodsp"
1638 mp3adu_decoder_select="mpegaudiodsp"
1639 mp3adufloat_decoder_select="mpegaudiodsp"
1640 mp3float_decoder_select="mpegaudiodsp"
1641 mp3on4_decoder_select="mpegaudiodsp"
1642 mp3on4float_decoder_select="mpegaudiodsp"
1643 mpc7_decoder_select="mpegaudiodsp"
1644 mpc8_decoder_select="mpegaudiodsp"
1645 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1646 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1647 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1648 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1649 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1650 mpeg1video_decoder_select="error_resilience mpegvideo"
1651 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1652 mpeg2_crystalhd_decoder_select="crystalhd"
1653 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1654 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1655 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1656 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1657 mpeg2video_decoder_select="error_resilience mpegvideo"
1658 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1659 mpeg4_crystalhd_decoder_select="crystalhd"
1660 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1661 mpeg4_encoder_select="h263_encoder"
1662 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1663 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1664 msmpeg4_crystalhd_decoder_select="crystalhd"
1665 msmpeg4v1_decoder_select="h263_decoder"
1666 msmpeg4v1_encoder_select="h263_encoder"
1667 msmpeg4v2_decoder_select="h263_decoder"
1668 msmpeg4v2_encoder_select="h263_encoder"
1669 msmpeg4v3_decoder_select="h263_decoder"
1670 msmpeg4v3_encoder_select="h263_encoder"
1671 mss2_decoder_select="vc1_decoder"
1672 nellymoser_decoder_select="mdct sinewin"
1673 nellymoser_encoder_select="mdct sinewin"
1674 png_decoder_select="zlib"
1675 png_encoder_select="zlib"
1676 qcelp_decoder_select="lsp"
1677 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1678 ra_144_encoder_select="lpc"
1679 ralf_decoder_select="golomb"
1680 rv10_decoder_select="h263_decoder"
1681 rv10_encoder_select="h263_encoder"
1682 rv20_decoder_select="h263_decoder"
1683 rv20_encoder_select="h263_encoder"
1684 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1685 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1686 shorten_decoder_select="golomb"
1687 sipr_decoder_select="lsp"
1688 snow_decoder_select="dwt rangecoder"
1689 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1690 sonic_decoder_select="golomb"
1691 sonic_encoder_select="golomb"
1692 sonic_ls_encoder_select="golomb"
1693 svq1_decoder_select="error_resilience mpegvideo"
1694 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1695 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1696 svq3_decoder_suggest="zlib"
1697 theora_decoder_select="vp3_decoder"
1698 tiff_decoder_suggest="zlib"
1699 tiff_encoder_suggest="zlib"
1700 truehd_decoder_select="mlp_parser"
1701 tscc_decoder_select="zlib"
1702 twinvq_decoder_select="mdct lsp sinewin"
1703 utvideo_encoder_select="huffman"
1704 vc1_crystalhd_decoder_select="crystalhd"
1705 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1706 vc1_dxva2_hwaccel_deps="dxva2api_h"
1707 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1708 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1709 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1710 vc1image_decoder_select="vc1_decoder"
1711 vorbis_decoder_select="mdct"
1712 vorbis_encoder_select="mdct"
1713 vp3_decoder_select="vp3dsp"
1714 vp5_decoder_select="vp3dsp"
1715 vp6_decoder_select="huffman vp3dsp"
1716 vp6a_decoder_select="vp6_decoder"
1717 vp6f_decoder_select="vp6_decoder"
1718 vp8_decoder_select="h264pred h264qpel"
1719 wmapro_decoder_select="mdct sinewin"
1720 wmav1_decoder_select="mdct sinewin"
1721 wmav1_encoder_select="mdct sinewin"
1722 wmav2_decoder_select="mdct sinewin"
1723 wmav2_encoder_select="mdct sinewin"
1724 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1725 wmv1_decoder_select="h263_decoder"
1726 wmv1_encoder_select="h263_encoder"
1727 wmv2_decoder_select="h263_decoder"
1728 wmv2_encoder_select="h263_encoder"
1729 wmv3_decoder_select="vc1_decoder"
1730 wmv3_crystalhd_decoder_select="crystalhd"
1731 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1732 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1733 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1734 wmv3image_decoder_select="wmv3_decoder"
1735 zerocodec_decoder_select="zlib"
1736 zlib_decoder_select="zlib"
1737 zlib_encoder_select="zlib"
1738 zmbv_decoder_select="zlib"
1739 zmbv_encoder_select="zlib"
1740
1741 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1742 vaapi_deps="va_va_h"
1743 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1744 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1745
1746 # parsers
1747 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1748 mpeg4video_parser_select="error_resilience mpegvideo"
1749 mpegvideo_parser_select="error_resilience mpegvideo"
1750 vc1_parser_select="error_resilience mpegvideo"
1751
1752 # external libraries
1753 libaacplus_encoder_deps="libaacplus"
1754 libcelt_decoder_deps="libcelt"
1755 libfaac_encoder_deps="libfaac"
1756 libfdk_aac_encoder_deps="libfdk_aac"
1757 libgsm_decoder_deps="libgsm"
1758 libgsm_encoder_deps="libgsm"
1759 libgsm_ms_decoder_deps="libgsm"
1760 libgsm_ms_encoder_deps="libgsm"
1761 libilbc_decoder_deps="libilbc"
1762 libilbc_encoder_deps="libilbc"
1763 libmodplug_demuxer_deps="libmodplug"
1764 libmp3lame_encoder_deps="libmp3lame"
1765 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1766 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1767 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1768 libopenjpeg_decoder_deps="libopenjpeg"
1769 libopenjpeg_encoder_deps="libopenjpeg"
1770 libopus_decoder_deps="libopus"
1771 libschroedinger_decoder_deps="libschroedinger"
1772 libschroedinger_encoder_deps="libschroedinger"
1773 libspeex_decoder_deps="libspeex"
1774 libspeex_encoder_deps="libspeex"
1775 libstagefright_h264_decoder_deps="libstagefright_h264"
1776 libtheora_encoder_deps="libtheora"
1777 libtwolame_encoder_deps="libtwolame"
1778 libvo_aacenc_encoder_deps="libvo_aacenc"
1779 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1780 libvorbis_decoder_deps="libvorbis"
1781 libvorbis_encoder_deps="libvorbis"
1782 libvpx_decoder_deps="libvpx"
1783 libvpx_encoder_deps="libvpx"
1784 libx264_encoder_deps="libx264"
1785 libx264rgb_encoder_deps="libx264"
1786 libxavs_encoder_deps="libxavs"
1787 libxvid_encoder_deps="libxvid"
1788 libutvideo_decoder_deps="libutvideo"
1789 libutvideo_encoder_deps="libutvideo"
1790
1791 # demuxers / muxers
1792 ac3_demuxer_select="ac3_parser"
1793 asf_stream_muxer_select="asf_muxer"
1794 avisynth_demuxer_deps="avisynth"
1795 dirac_demuxer_select="dirac_parser"
1796 eac3_demuxer_select="ac3_parser"
1797 f4v_muxer_select="mov_muxer"
1798 flac_demuxer_select="flac_parser"
1799 ipod_muxer_select="mov_muxer"
1800 libnut_demuxer_deps="libnut"
1801 libnut_muxer_deps="libnut"
1802 matroska_audio_muxer_select="matroska_muxer"
1803 matroska_demuxer_suggest="zlib bzlib"
1804 mov_demuxer_suggest="zlib"
1805 mp3_demuxer_select="mpegaudio_parser"
1806 mp4_muxer_select="mov_muxer"
1807 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1808 mpegtsraw_demuxer_select="mpegts_demuxer"
1809 mxf_d10_muxer_select="mxf_muxer"
1810 ogg_demuxer_select="golomb"
1811 psp_muxer_select="mov_muxer"
1812 rtp_demuxer_select="sdp_demuxer"
1813 rtp_muxer_select="mpegvideo"
1814 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1815 rtsp_demuxer_select="http_protocol rtpdec"
1816 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1817 sap_demuxer_select="sdp_demuxer"
1818 sap_muxer_select="rtp_muxer rtp_protocol"
1819 sdp_demuxer_select="rtpdec"
1820 smoothstreaming_muxer_select="ismv_muxer"
1821 spdif_muxer_select="aac_parser"
1822 tg2_muxer_select="mov_muxer"
1823 tgp_muxer_select="mov_muxer"
1824 w64_demuxer_deps="wav_demuxer"
1825
1826 # indevs / outdevs
1827 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1828 alsa_outdev_deps="alsa_asoundlib_h"
1829 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1830 caca_outdev_deps="libcaca"
1831 dshow_indev_deps="IBaseFilter"
1832 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1833 dv1394_indev_deps="dv1394 dv_demuxer"
1834 fbdev_indev_deps="linux_fb_h"
1835 iec61883_indev_deps="libiec61883"
1836 jack_indev_deps="jack_jack_h sem_timedwait"
1837 lavfi_indev_deps="avfilter"
1838 libcdio_indev_deps="libcdio"
1839 libdc1394_indev_deps="libdc1394"
1840 libv4l2_indev_deps="libv4l2"
1841 openal_indev_deps="openal"
1842 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1843 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1844 pulse_indev_deps="libpulse"
1845 sdl_outdev_deps="sdl"
1846 sndio_indev_deps="sndio_h"
1847 sndio_outdev_deps="sndio_h"
1848 v4l_indev_deps="linux_videodev_h"
1849 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1850 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1851 vfwcap_indev_extralibs="-lavicap32"
1852 x11grab_indev_deps="x11grab"
1853
1854 # protocols
1855 bluray_protocol_deps="libbluray"
1856 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1857 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1858 ffrtmpcrypt_protocol_select="tcp_protocol"
1859 ffrtmphttp_protocol_deps="!librtmp_protocol"
1860 ffrtmphttp_protocol_select="http_protocol"
1861 gopher_protocol_deps="network"
1862 httpproxy_protocol_deps="network"
1863 httpproxy_protocol_select="tcp_protocol"
1864 http_protocol_deps="network"
1865 http_protocol_select="tcp_protocol"
1866 https_protocol_select="tls_protocol"
1867 librtmp_protocol_deps="librtmp"
1868 librtmpe_protocol_deps="librtmp"
1869 librtmps_protocol_deps="librtmp"
1870 librtmpt_protocol_deps="librtmp"
1871 librtmpte_protocol_deps="librtmp"
1872 mmsh_protocol_select="http_protocol"
1873 mmst_protocol_deps="network"
1874 rtmp_protocol_deps="!librtmp_protocol"
1875 rtmp_protocol_select="tcp_protocol"
1876 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1877 rtmps_protocol_deps="!librtmp_protocol"
1878 rtmps_protocol_select="tls_protocol"
1879 rtmpt_protocol_select="ffrtmphttp_protocol"
1880 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1881 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1882 rtp_protocol_select="udp_protocol"
1883 sctp_protocol_deps="network struct_sctp_event_subscribe"
1884 tcp_protocol_deps="network"
1885 tls_protocol_deps_any="openssl gnutls"
1886 tls_protocol_select="tcp_protocol"
1887 udp_protocol_deps="network"
1888
1889 # filters
1890 aconvert_filter_deps="swresample"
1891 amovie_filter_deps="avcodec avformat"
1892 aresample_filter_deps="swresample"
1893 ass_filter_deps="libass"
1894 asyncts_filter_deps="avresample"
1895 atempo_filter_deps="avcodec rdft"
1896 blackframe_filter_deps="gpl"
1897 boxblur_filter_deps="gpl"
1898 colormatrix_filter_deps="gpl"
1899 cropdetect_filter_deps="gpl"
1900 decimate_filter_deps="gpl avcodec"
1901 delogo_filter_deps="gpl"
1902 deshake_filter_deps="avcodec"
1903 drawtext_filter_deps="libfreetype"
1904 flite_filter_deps="libflite"
1905 frei0r_filter_deps="frei0r dlopen"
1906 frei0r_filter_extralibs='$ldl'
1907 frei0r_src_filter_deps="frei0r dlopen"
1908 frei0r_src_filter_extralibs='$ldl'
1909 hqdn3d_filter_deps="gpl"
1910 movie_filter_deps="avcodec avformat"
1911 mp_filter_deps="gpl avcodec swscale postproc inline_asm"
1912 mptestsrc_filter_deps="gpl"
1913 negate_filter_deps="lut_filter"
1914 resample_filter_deps="avresample"
1915 ocv_filter_deps="libopencv"
1916 pan_filter_deps="swresample"
1917 removelogo_filter_deps="avcodec avformat swscale"
1918 scale_filter_deps="swscale"
1919 smartblur_filter_deps="gpl swscale"
1920 showspectrum_filter_deps="avcodec"
1921 super2xsai_filter_deps="gpl"
1922 tinterlace_filter_deps="gpl"
1923 yadif_filter_deps="gpl"
1924 pixfmts_super2xsai_test_deps="super2xsai_filter"
1925 tinterlace_merge_test_deps="tinterlace_filter"
1926 tinterlace_pad_test_deps="tinterlace_filter"
1927
1928 # libraries
1929 avdevice_deps="avcodec avformat"
1930 avformat_deps="avcodec"
1931 postproc_deps="gpl"
1932
1933 # programs
1934 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1935 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
1936                setpts_filter null_filter anull_filter ffabuffersink_filter"
1937 ffplay_deps="avcodec avformat swscale swresample sdl"
1938 ffplay_select="ffbuffersink_filter rdft crop_filter"
1939 ffprobe_deps="avcodec avformat"
1940 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1941 ffserver_extralibs='$ldl'
1942
1943 # documentation
1944 podpages_deps="perl"
1945 manpages_deps="perl pod2man"
1946 htmlpages_deps="texi2html"
1947 txtpages_deps="makeinfo"
1948 doc_deps_any="manpages htmlpages podpages txtpages"
1949
1950 # tests
1951 colormatrix1_test_deps="colormatrix_filter"
1952 colormatrix2_test_deps="colormatrix_filter"
1953 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1954 png_test_deps="zlib"
1955 pp_test_deps="mp_filter"
1956 pp2_test_deps="mp_filter"
1957 pp3_test_deps="mp_filter"
1958 pp4_test_deps="mp_filter"
1959 pp5_test_deps="mp_filter"
1960 pp6_test_deps="mp_filter"
1961 seek_flashsv_flv_test_deps="zlib"
1962 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1963
1964 test_deps(){
1965     suf1=$1
1966     suf2=$2
1967     shift 2
1968     for v; do
1969         dep=${v%=*}
1970         tests=${v#*=}
1971         for name in ${tests}; do
1972             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1973         done
1974     done
1975 }
1976
1977 test_deps _muxer _demuxer                                               \
1978     aiff                                                                \
1979     pcm_alaw=alaw                                                       \
1980     asf                                                                 \
1981     au                                                                  \
1982     avi                                                                 \
1983     dv=dv_fmt                                                           \
1984     ffm                                                                 \
1985     flv=flv_fmt                                                         \
1986     gxf                                                                 \
1987     matroska=mkv                                                        \
1988     mmf                                                                 \
1989     mov="mov ismv"                                                      \
1990     pcm_mulaw=mulaw                                                     \
1991     mxf="mxf mxf_d10"                                                   \
1992     nut                                                                 \
1993     ogg="ogg ogg_vp3"                                                   \
1994     rawvideo=pixfmt                                                     \
1995     rm                                                                  \
1996     swf                                                                 \
1997     mpegts=ts                                                           \
1998     voc                                                                 \
1999     wav                                                                 \
2000     yuv4mpegpipe=yuv4mpeg                                               \
2001
2002 # default parameters
2003
2004 logfile="config.log"
2005
2006 # installation paths
2007 prefix_default="/usr/local"
2008 bindir_default='${prefix}/bin'
2009 datadir_default='${prefix}/share/ffmpeg'
2010 incdir_default='${prefix}/include'
2011 libdir_default='${prefix}/lib'
2012 mandir_default='${prefix}/share/man'
2013 shlibdir_default="$libdir_default"
2014 postproc_version_default="current"
2015
2016 # toolchain
2017 ar_default="ar"
2018 cc_default="gcc"
2019 cxx_default="g++"
2020 host_cc_default="gcc"
2021 install="install"
2022 ln_s="ln -sf"
2023 nm_default="nm -g"
2024 objformat="elf"
2025 pkg_config_default=pkg-config
2026 ranlib="ranlib"
2027 strip_default="strip"
2028 yasmexe_default="yasm"
2029
2030 nogas=":"
2031
2032 # machine
2033 arch_default=$(uname -m)
2034 cpu="generic"
2035
2036 # OS
2037 target_os_default=$(tolower $(uname -s))
2038 host_os=$target_os_default
2039
2040 # alternative libpostproc version
2041 ALT_PP_VER_MAJOR=51
2042 ALT_PP_VER_MINOR=2
2043 ALT_PP_VER_MICRO=101
2044 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2045
2046 # configurable options
2047 enable $PROGRAM_LIST
2048 enable $DOCUMENT_LIST
2049
2050 enable avcodec
2051 enable avdevice
2052 enable avfilter
2053 enable avformat
2054 enable avutil
2055 enable postproc
2056 enable stripping
2057 enable swresample
2058 enable swscale
2059
2060 enable asm
2061 enable debug
2062 enable doc
2063 enable network
2064 enable optimizations
2065 enable runtime_cpudetect
2066 enable safe_bitstream_reader
2067 enable static
2068 enable swscale_alpha
2069
2070 # build settings
2071 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2072 FFSERVERLDFLAGS=-Wl,-E
2073 LIBPREF="lib"
2074 LIBSUF=".a"
2075 FULLNAME='$(NAME)$(BUILDSUF)'
2076 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2077 SLIBPREF="lib"
2078 SLIBSUF=".so"
2079 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2080 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2081 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2082 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2083 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2084 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2085
2086 asflags_filter=echo
2087 cflags_filter=echo
2088 ldflags_filter=echo
2089
2090 AS_C='-c'
2091 AS_O='-o $@'
2092 CC_C='-c'
2093 CC_E='-E -o $@'
2094 CC_O='-o $@'
2095 CXX_C='-c'
2096 CXX_O='-o $@'
2097 LD_O='-o $@'
2098 LD_LIB='-l%'
2099 LD_PATH='-L'
2100 HOSTCC_C='-c'
2101 HOSTCC_O='-o $@'
2102 HOSTLD_O='-o $@'
2103
2104 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2105 host_libs='-lm'
2106 host_cflags_filter=echo
2107 host_ldflags_filter=echo
2108
2109 target_path='$(CURDIR)'
2110
2111 # since the object filename is not given with the -MM flag, the compiler
2112 # is only able to print the basename, and we must add the path ourselves
2113 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2114 DEPFLAGS='-MM'
2115
2116 # find source path
2117 if test -f configure; then
2118     source_path=.
2119 else
2120     source_path=$(cd $(dirname "$0"); pwd)
2121     echo "$source_path" | grep -q '[[:blank:]]' &&
2122         die "Out of tree builds are impossible with whitespace in source path."
2123     test -e "$source_path/config.h" &&
2124         die "Out of tree builds are impossible with config.h in source dir."
2125 fi
2126
2127 for v in "$@"; do
2128     r=${v#*=}
2129     l=${v%"$r"}
2130     r=$(sh_quote "$r")
2131     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2132 done
2133
2134 find_things(){
2135     thing=$1
2136     pattern=$2
2137     file=$source_path/$3
2138     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2139 }
2140
2141 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2142 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2143 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2144 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2145 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2146 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2147 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2148 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2149 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2150 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2151 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2152
2153 ALL_COMPONENTS="
2154     $BSF_LIST
2155     $DECODER_LIST
2156     $DEMUXER_LIST
2157     $ENCODER_LIST
2158     $FILTER_LIST
2159     $HWACCEL_LIST
2160     $INDEV_LIST
2161     $MUXER_LIST
2162     $OUTDEV_LIST
2163     $PARSER_LIST
2164     $PROTOCOL_LIST
2165 "
2166
2167 find_tests(){
2168     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2169 }
2170
2171 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2172 LAVF_TESTS=$(find_tests lavf)
2173 LAVFI_TESTS=$(find_tests lavfi)
2174 SEEK_TESTS=$(find_tests seek seek_)
2175
2176 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2177
2178 for n in $COMPONENT_LIST; do
2179     v=$(toupper ${n%s})_LIST
2180     eval enable \$$v
2181     eval ${n}_if_any="\$$v"
2182 done
2183
2184 enable $ARCH_EXT_LIST $ALL_TESTS
2185
2186 die_unknown(){
2187     echo "Unknown option \"$1\"."
2188     echo "See $0 --help for available options."
2189     exit 1
2190 }
2191
2192 show_list() {
2193     suffix=_$1
2194     shift
2195     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2196     exit 0
2197 }
2198
2199 rand_list(){
2200     IFS=', '
2201     set -- $*
2202     unset IFS
2203     for thing; do
2204         comp=${thing%:*}
2205         prob=${thing#$comp}
2206         prob=${prob#:}
2207         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2208         echo "prob ${prob:-0.5}"
2209         printf '%s\n' $comp
2210     done
2211 }
2212
2213 do_random(){
2214     action=$1
2215     shift
2216     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2217     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2218 }
2219
2220 for opt do
2221     optval="${opt#*=}"
2222     case "$opt" in
2223     --extra-ldflags=*) add_ldflags $optval
2224     ;;
2225     --extra-libs=*) add_extralibs $optval
2226     ;;
2227     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2228     ;;
2229     --enable-debug=*) debuglevel="$optval"
2230     ;;
2231     --disable-everything)
2232     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2233     ;;
2234     --enable-random|--disable-random)
2235     action=${opt%%-random}
2236     do_random ${action#--} $COMPONENT_LIST
2237     ;;
2238     --enable-random=*|--disable-random=*)
2239     action=${opt%%-random=*}
2240     do_random ${action#--} $optval
2241     ;;
2242     --enable-*=*|--disable-*=*)
2243     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2244     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2245     eval list=\$$(toupper $thing)_LIST
2246     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2247     $action $(filter "$name" $list)
2248     ;;
2249     --enable-?*|--disable-?*)
2250     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2251     if is_in $option $COMPONENT_LIST; then
2252         test $action = disable && action=unset
2253         eval $action \$$(toupper ${option%s})_LIST
2254     elif is_in $option $CMDLINE_SELECT; then
2255         $action $option
2256     else
2257         die_unknown $opt
2258     fi
2259     ;;
2260     --list-*)
2261         NAME="${opt#--list-}"
2262         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2263         NAME=${NAME%s}
2264         eval show_list $NAME \$$(toupper $NAME)_LIST
2265     ;;
2266     --help|-h) show_help
2267     ;;
2268     *)
2269     optname="${opt%%=*}"
2270     optname="${optname#--}"
2271     optname=$(echo "$optname" | sed 's/-/_/g')
2272     if is_in $optname $CMDLINE_SET; then
2273         eval $optname='$optval'
2274     elif is_in $optname $CMDLINE_APPEND; then
2275         append $optname "$optval"
2276     else
2277          die_unknown $opt
2278     fi
2279     ;;
2280     esac
2281 done
2282
2283 disabled logging && logfile=/dev/null
2284
2285 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2286 set >> $logfile
2287
2288 test -n "$cross_prefix" && enable cross_compile
2289
2290 if enabled cross_compile; then
2291     test -n "$arch" && test -n "$target_os" ||
2292         die "Must specify target arch and OS when cross-compiling"
2293 fi
2294
2295 set_default arch target_os postproc_version
2296
2297 # Check if we should build alternative libpostproc version instead of current
2298 if   test "$postproc_version" = $ALT_PP_VER; then
2299   LIBPOSTPROC_VERSION=$ALT_PP_VER
2300   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2301   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2302   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2303 elif test "$postproc_version" != current; then
2304   die "Invalid argument to --postproc-version. See --help output."
2305 fi
2306
2307 ar_default="${cross_prefix}${ar_default}"
2308 cc_default="${cross_prefix}${cc_default}"
2309 cxx_default="${cross_prefix}${cxx_default}"
2310 nm_default="${cross_prefix}${nm_default}"
2311 pkg_config_default="${cross_prefix}${pkg_config_default}"
2312 ranlib="${cross_prefix}${ranlib}"
2313 strip_default="${cross_prefix}${strip_default}"
2314
2315 sysinclude_default="${sysroot}/usr/include"
2316
2317 case "$toolchain" in
2318     msvc)
2319         cc_default="c99wrap cl"
2320         ld_default="c99wrap link"
2321         nm_default="dumpbin -symbols"
2322         ar_default="lib"
2323     ;;
2324     ?*)
2325         die "Unknown toolchain $toolchain"
2326     ;;
2327 esac
2328
2329 set_default cc cxx pkg_config strip sysinclude yasmexe
2330 enabled cross_compile || host_cc_default=$cc
2331 set_default host_cc
2332
2333 if ! $pkg_config --version >/dev/null 2>&1; then
2334     warn "$pkg_config not found, library detection may fail."
2335     pkg_config=false
2336 fi
2337
2338 exesuf() {
2339     case $1 in
2340         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2341     esac
2342 }
2343
2344 EXESUF=$(exesuf $target_os)
2345 HOSTEXESUF=$(exesuf $host_os)
2346
2347 # set temporary file name
2348 : ${TMPDIR:=$TEMPDIR}
2349 : ${TMPDIR:=$TMP}
2350 : ${TMPDIR:=/tmp}
2351
2352 if ! check_cmd mktemp -u XXXXXX; then
2353     # simple replacement for missing mktemp
2354     # NOT SAFE FOR GENERAL USE
2355     mktemp(){
2356         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2357     }
2358 fi
2359
2360 tmpfile(){
2361     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2362         (set -C; exec > $tmp) 2>/dev/null ||
2363         die "Unable to create temporary file in $TMPDIR."
2364     append TMPFILES $tmp
2365     eval $1=$tmp
2366 }
2367
2368 trap 'rm -f -- $TMPFILES' EXIT
2369
2370 tmpfile TMPASM .asm
2371 tmpfile TMPC   .c
2372 tmpfile TMPCPP .cpp
2373 tmpfile TMPE   $EXESUF
2374 tmpfile TMPH   .h
2375 tmpfile TMPO   .o
2376 tmpfile TMPS   .S
2377 tmpfile TMPSH  .sh
2378 tmpfile TMPV   .ver
2379
2380 unset -f mktemp
2381
2382 chmod +x $TMPE
2383
2384 # make sure we can execute files in $TMPDIR
2385 cat > $TMPSH 2>> $logfile <<EOF
2386 #! /bin/sh
2387 EOF
2388 chmod +x $TMPSH >> $logfile 2>&1
2389 if ! $TMPSH >> $logfile 2>&1; then
2390     cat <<EOF
2391 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2392 variable to another directory and make sure that it is not mounted noexec.
2393 EOF
2394     die "Sanity test failed."
2395 fi
2396
2397 msvc_flags(){
2398     for flag; do
2399         case $flag in
2400             -fomit-frame-pointer) echo -Oy ;;
2401             -g)                   echo -Z7 ;;
2402             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2403                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2404                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2405                                        -wd4996 -wd4554 ;;
2406             -std=c99)             ;;
2407             -fno-math-errno)      ;;
2408             -fno-common)          ;;
2409             -fno-signed-zeros)    ;;
2410             -lz)                  echo zlib.lib ;;
2411             -l*)                  echo ${flag#-l}.lib ;;
2412             *)                    echo $flag ;;
2413         esac
2414     done
2415 }
2416
2417 pgi_flags(){
2418     for flag; do
2419         case $flag in
2420             -fomit-frame-pointer) echo -Mnoframe ;;
2421             -g)                   echo -gopt ;;
2422             *)                    echo $flag ;;
2423         esac
2424     done
2425 }
2426
2427 suncc_flags(){
2428     for flag; do
2429         case $flag in
2430             -march=*|-mcpu=*)
2431                 case "${flag#*=}" in
2432                     native)                   echo -xtarget=native       ;;
2433                     v9|niagara)               echo -xarch=sparc          ;;
2434                     ultrasparc)               echo -xarch=sparcvis       ;;
2435                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2436                     i586|pentium)             echo -xchip=pentium        ;;
2437                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2438                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2439                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2440                     pentium4*)          echo -xtarget=pentium4           ;;
2441                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2442                     *-sse3)             echo -xarch=sse3                 ;;
2443                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2444                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2445                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2446                     k8|opteron|athlon64|athlon-fx)
2447                                               echo -xarch=sse2a          ;;
2448                     athlon*)                  echo -xarch=pentium_proa   ;;
2449                 esac
2450                 ;;
2451             -std=c99)             echo -xc99              ;;
2452             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2453             -fPIC)                echo -KPIC -xcode=pic32 ;;
2454             -W*,*)                echo $flag              ;;
2455             -f*-*|-W*)                                    ;;
2456             *)                    echo $flag              ;;
2457         esac
2458     done
2459 }
2460
2461 tms470_flags(){
2462     for flag; do
2463         case $flag in
2464             -march=*|-mcpu=*)
2465                 case "${flag#*=}" in
2466                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2467                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2468                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2469                     armv6*|arm11*)          echo -mv=6   ;;
2470                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2471                                             echo -mv=5e  ;;
2472                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2473                 esac
2474                 ;;
2475             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2476             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2477             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2478             -msoft-float)   echo --float_support=vfplib       ;;
2479             -O[0-3]|-mf=*)  echo $flag                        ;;
2480             -g)             echo -g -mn                       ;;
2481             -pds=*)         echo $flag                        ;;
2482             -D*|-I*)        echo $flag                        ;;
2483             --gcc|--abi=*)  echo $flag                        ;;
2484             -me)            echo $flag                        ;;
2485         esac
2486     done
2487 }
2488
2489 probe_cc(){
2490     pfx=$1
2491     _cc=$2
2492
2493     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2494     unset _ld_o _ldflags _ld_lib _ld_path
2495     unset _depflags _DEPCMD _DEPFLAGS
2496     _flags_filter=echo
2497
2498     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
2499         true # no-op to avoid reading stdin in following checks
2500     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2501         _type=llvm_gcc
2502         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2503         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2504         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2505         _cflags_speed='-O3'
2506         _cflags_size='-Os'
2507     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2508         _type=gcc
2509         gcc_version=$($_cc --version | head -n1)
2510         gcc_basever=$($_cc -dumpversion)
2511         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2512         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2513         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2514         if ! $_cc -dumpversion | grep -q '^2\.'; then
2515             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2516         fi
2517         _cflags_speed='-O3'
2518         _cflags_size='-Os'
2519     elif $_cc --version 2>/dev/null | grep -q Intel; then
2520         _type=icc
2521         _ident=$($_cc --version | head -n1)
2522         _depflags='-MMD'
2523         _cflags_speed='-O3'
2524         _cflags_size='-Os'
2525         _cflags_noopt='-O1'
2526     elif $_cc -v 2>&1 | grep -q xlc; then
2527         _type=xlc
2528         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2529         _cflags_speed='-O5'
2530         _cflags_size='-O5 -qcompact'
2531     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2532         _type=ccc
2533         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2534         _DEPFLAGS='-M'
2535         debuglevel=3
2536         _ldflags='-Wl,-z,now' # calls to libots crash without this
2537         _cflags_speed='-fast'
2538         _cflags_size='-O1'
2539     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2540         test -d "$sysroot" || die "No valid sysroot specified."
2541         _type=armcc
2542         _ident=$($_cc --vsn | head -n1)
2543         armcc_conf="$PWD/armcc.conf"
2544         $_cc --arm_linux_configure                 \
2545              --arm_linux_config_file="$armcc_conf" \
2546              --configure_sysroot="$sysroot"        \
2547              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2548              die "Error creating armcc configuration file."
2549         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2550         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2551         as_default="${cross_prefix}gcc"
2552         _depflags='-MMD'
2553         _cflags_speed='-O3'
2554         _cflags_size='-Os'
2555     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2556         _type=tms470
2557         _ident=$($_cc -version | head -n1 | tr -s ' ')
2558         _flags='--gcc --abi=eabi -me'
2559         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2560         _cc_e='-ppl -fe=$@'
2561         _cc_o='-fe=$@'
2562         as_default="${cross_prefix}gcc"
2563         ld_default="${cross_prefix}gcc"
2564         _depflags='-ppa -ppd=$(@:.o=.d)'
2565         _cflags_speed='-O3 -mf=5'
2566         _cflags_size='-O3 -mf=2'
2567         _flags_filter=tms470_flags
2568     elif $_cc -v 2>&1 | grep -q clang; then
2569         _type=clang
2570         _ident=$($_cc --version | head -n1)
2571         _depflags='-MMD'
2572         _cflags_speed='-O3'
2573         _cflags_size='-Os'
2574     elif $_cc -V 2>&1 | grep -q Sun; then
2575         _type=suncc
2576         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2577         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2578         _DEPFLAGS='-xM1 -xc99'
2579         _ldflags='-std=c99'
2580         _cflags_speed='-O5'
2581         _cflags_size='-O5 -xspace'
2582         _flags_filter=suncc_flags
2583     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2584         _type=pathscale
2585         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2586         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2587         _cflags_speed='-O2'
2588         _cflags_size='-Os'
2589         _flags_filter='filter_out -Wdisabled-optimization'
2590     elif $_cc -v 2>&1 | grep -q Open64; then
2591         _type=open64
2592         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2593         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2594         _cflags_speed='-O2'
2595         _cflags_size='-Os'
2596         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2597     elif $_cc -V 2>&1 | grep -q Portland; then
2598         _type=pgi
2599         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2600         opt_common='-alias=ansi -Mlre -Mpre'
2601         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2602         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2603         _cflags_noopt="-O1"
2604         _flags_filter=pgi_flags
2605     elif $_cc 2>&1 | grep -q Microsoft; then
2606         _type=msvc
2607         _ident=$($cc 2>&1 | head -n1)
2608         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2609         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2610         _cflags_speed="-O2"
2611         _cflags_size="-O1"
2612         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2613         if $_cc 2>&1 | grep -q Linker; then
2614             _ld_o='-out $@'
2615         else
2616             _ld_o='-Fe$@'
2617         fi
2618         _cc_o='-Fo $@'
2619         _cc_e='-P -Fi $@'
2620         _flags_filter=msvc_flags
2621         _ld_lib='lib%.a'
2622         _ld_path='-libpath:'
2623         _flags='-nologo'
2624         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2625         if [ $pfx = hostcc ]; then
2626             append _cflags -Dsnprintf=_snprintf
2627         fi
2628         disable stripping
2629     fi
2630
2631     eval ${pfx}_type=\$_type
2632     eval ${pfx}_ident=\$_ident
2633 }
2634
2635 set_ccvars(){
2636     eval ${1}_C=\${_cc_c-\${${1}_C}}
2637     eval ${1}_E=\${_cc_e-\${${1}_E}}
2638     eval ${1}_O=\${_cc_o-\${${1}_O}}
2639
2640     if [ -n "$_depflags" ]; then
2641         eval ${1}_DEPFLAGS=\$_depflags
2642     else
2643         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2644         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2645         eval DEP${1}FLAGS=\$_flags
2646     fi
2647 }
2648
2649 probe_cc cc "$cc"
2650 cflags_filter=$_flags_filter
2651 cflags_speed=$_cflags_speed
2652 cflags_size=$_cflags_size
2653 cflags_noopt=$_cflags_noopt
2654 add_cflags $_flags $_cflags
2655 cc_ldflags=$_ldflags
2656 set_ccvars CC
2657
2658 probe_cc hostcc "$host_cc"
2659 host_cflags_filter=$_flags_filter
2660 add_host_cflags  $_flags $_cflags
2661 set_ccvars HOSTCC
2662
2663 test -n "$cc_type" && enable $cc_type ||
2664     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2665
2666 : ${as_default:=$cc}
2667 : ${dep_cc_default:=$cc}
2668 : ${ld_default:=$cc}
2669 : ${host_ld_default:=$host_cc}
2670 set_default ar as dep_cc ld host_ld
2671
2672 probe_cc as "$as"
2673 asflags_filter=$_flags_filter
2674 add_asflags $_flags $_cflags
2675 set_ccvars AS
2676
2677 probe_cc ld "$ld"
2678 ldflags_filter=$_flags_filter
2679 add_ldflags $_flags $_ldflags
2680 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2681 LD_O=${_ld_o-$LD_O}
2682 LD_LIB=${_ld_lib-$LD_LIB}
2683 LD_PATH=${_ld_path-$LD_PATH}
2684
2685 probe_cc hostld "$host_ld"
2686 host_ldflags_filter=$_flags_filter
2687 add_host_ldflags $_flags $_ldflags
2688 HOSTLD_O=${_ld_o-$HOSTLD_O}
2689
2690 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2691     probe_cc depcc "$dep_cc"
2692     CCDEP=${_DEPCMD:-$DEPCMD}
2693     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2694     DEPCCFLAGS=$_flags
2695 fi
2696
2697 if $ar 2>&1 | grep -q Microsoft; then
2698     arflags="-nologo"
2699     ar_o='-out:$@'
2700 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2701     arflags="rq"
2702     ar_o='$@'
2703 else
2704     arflags="rc"
2705     ar_o='$@'
2706 fi
2707
2708 add_cflags $extra_cflags
2709 add_cxxflags $extra_cxxflags
2710 add_asflags $extra_cflags
2711
2712 if test -n "$sysroot"; then
2713     case "$cc_type" in
2714         gcc|llvm_gcc|clang)
2715             add_cppflags --sysroot="$sysroot"
2716             add_ldflags --sysroot="$sysroot"
2717         ;;
2718         tms470)
2719             add_cppflags -I"$sysinclude"
2720             add_ldflags  --sysroot="$sysroot"
2721         ;;
2722     esac
2723 fi
2724
2725 if test "$cpu" = host; then
2726     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2727
2728     case "$cc_type" in
2729         gcc|llvm_gcc)
2730             check_native(){
2731                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2732                 sed -n "/cc1.*$1=/{
2733                             s/.*$1=\\([^ ]*\\).*/\\1/
2734                             p
2735                             q
2736                         }" $TMPE
2737             }
2738             cpu=$(check_native -march || check_native -mcpu)
2739         ;;
2740     esac
2741
2742     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2743 fi
2744
2745 # Deal with common $arch aliases
2746 case "$arch" in
2747     arm*|iPad*)
2748         arch="arm"
2749     ;;
2750     mips|mipsel|IP*)
2751         arch="mips"
2752     ;;
2753     mips64*)
2754         arch="mips"
2755         subarch="mips64"
2756     ;;
2757     parisc|hppa)
2758         arch="parisc"
2759     ;;
2760     parisc64|hppa64)
2761         arch="parisc"
2762         subarch="parisc64"
2763     ;;
2764     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2765         arch="ppc"
2766     ;;
2767     s390|s390x)
2768         arch="s390"
2769     ;;
2770     sh4|sh)
2771         arch="sh4"
2772     ;;
2773     sun4u|sparc64)
2774         arch="sparc"
2775         subarch="sparc64"
2776     ;;
2777     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2778         arch="x86"
2779     ;;
2780 esac
2781
2782 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2783 enable $arch
2784
2785 # Add processor-specific flags
2786 if test "$cpu" = generic; then
2787     : do nothing
2788 elif enabled ppc; then
2789
2790     case $(tolower $cpu) in
2791         601|ppc601|powerpc601)
2792             cpuflags="-mcpu=601"
2793             disable altivec
2794         ;;
2795         603*|ppc603*|powerpc603*)
2796             cpuflags="-mcpu=603"
2797             disable altivec
2798         ;;
2799         604*|ppc604*|powerpc604*)
2800             cpuflags="-mcpu=604"
2801             disable altivec
2802         ;;
2803         g3|75*|ppc75*|powerpc75*)
2804             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2805             disable altivec
2806         ;;
2807         g4|745*|ppc745*|powerpc745*)
2808             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2809         ;;
2810         74*|ppc74*|powerpc74*)
2811             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2812         ;;
2813         g5|970|ppc970|powerpc970)
2814             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2815         ;;
2816         power[3-7]*)
2817             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2818         ;;
2819         cell)
2820             cpuflags="-mcpu=cell"
2821             enable ldbrx
2822         ;;
2823         e500mc)
2824             cpuflags="-mcpu=e500mc"
2825             disable altivec
2826         ;;
2827         e500v2)
2828             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2829             disable altivec
2830         ;;
2831         e500)
2832             cpuflags="-mcpu=8540 -mhard-float"
2833             disable altivec
2834         ;;
2835     esac
2836
2837 elif enabled x86; then
2838
2839     case $cpu in
2840         i[345]86|pentium)
2841             cpuflags="-march=$cpu"
2842             disable mmx
2843         ;;
2844         # targets that do NOT support conditional mov (cmov)
2845         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2846             cpuflags="-march=$cpu"
2847             disable cmov
2848         ;;
2849         # targets that do support conditional mov (cmov)
2850         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2851             cpuflags="-march=$cpu"
2852             enable cmov
2853             enable fast_cmov
2854         ;;
2855         # targets that do support conditional mov but on which it's slow
2856         pentium4|pentium4m|prescott|nocona)
2857             cpuflags="-march=$cpu"
2858             enable cmov
2859             disable fast_cmov
2860         ;;
2861     esac
2862
2863 elif enabled sparc; then
2864
2865     case $cpu in
2866         niagara)
2867             cpuflags="-mcpu=$cpu"
2868             disable vis
2869         ;;
2870         sparc64)
2871             cpuflags="-mcpu=v9"
2872         ;;
2873     esac
2874
2875 elif enabled arm; then
2876
2877     case $cpu in
2878         armv*)
2879             cpuflags="-march=$cpu"
2880             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2881         ;;
2882         *)
2883             cpuflags="-mcpu=$cpu"
2884             case $cpu in
2885                 cortex-a*)                               subarch=armv7a  ;;
2886                 cortex-r*)                               subarch=armv7r  ;;
2887                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2888                 arm11*)                                  subarch=armv6   ;;
2889                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2890                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2891             esac
2892         ;;
2893     esac
2894
2895 elif enabled alpha; then
2896
2897     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2898
2899 elif enabled bfin; then
2900
2901     cpuflags="-mcpu=$cpu"
2902
2903 elif enabled mips; then
2904
2905     cpuflags="-march=$cpu"
2906
2907     case $cpu in
2908         24kc)
2909             disable mipsfpu
2910             disable mipsdspr1
2911             disable mipsdspr2
2912         ;;
2913         24kf*)
2914             disable mipsdspr1
2915             disable mipsdspr2
2916         ;;
2917         24kec|34kc|1004kc)
2918             disable mipsfpu
2919             disable mipsdspr2
2920         ;;
2921         24kef*|34kf*|1004kf*)
2922             disable mipsdspr2
2923         ;;
2924         74kc)
2925             disable mipsfpu
2926         ;;
2927     esac
2928
2929 elif enabled avr32; then
2930
2931     case $cpu in
2932         ap7[02]0[0-2])
2933             subarch="avr32_ap"
2934             cpuflags="-mpart=$cpu"
2935         ;;
2936         ap)
2937             subarch="avr32_ap"
2938             cpuflags="-march=$cpu"
2939         ;;
2940         uc3[ab]*)
2941             subarch="avr32_uc"
2942             cpuflags="-mcpu=$cpu"
2943         ;;
2944         uc)
2945             subarch="avr32_uc"
2946             cpuflags="-march=$cpu"
2947         ;;
2948     esac
2949
2950 fi
2951
2952 add_cflags $cpuflags
2953 add_asflags $cpuflags
2954
2955 # compiler sanity check
2956 check_exec <<EOF
2957 int main(void){ return 0; }
2958 EOF
2959 if test "$?" != 0; then
2960     echo "$cc is unable to create an executable file."
2961     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2962         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2963         echo "Only do this if you know what cross compiling means."
2964     fi
2965     die "C compiler test failed."
2966 fi
2967
2968 add_cppflags -D_ISOC99_SOURCE
2969 add_cxxflags -D__STDC_CONSTANT_MACROS
2970 check_cflags -std=c99
2971 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2972 #include <stdlib.h>
2973 EOF
2974 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2975 #include <stdlib.h>
2976 EOF
2977
2978 check_host_cflags -std=c99
2979 check_host_cflags -Wall
2980
2981 case "$arch" in
2982     alpha|ia64|mips|parisc|sparc)
2983         spic=$shared
2984     ;;
2985     x86)
2986         subarch="x86_32"
2987         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2988         if test "$subarch" = "x86_64"; then
2989             spic=$shared
2990         fi
2991     ;;
2992     ppc)
2993         check_cc <<EOF && subarch="ppc64"
2994         int test[(int)sizeof(char*) - 7];
2995 EOF
2996     ;;
2997 esac
2998
2999 enable $subarch
3000 enabled spic && enable pic
3001
3002 # OS specific
3003 case $target_os in
3004     haiku)
3005         prefix_default="/boot/common"
3006         network_extralibs="-lnetwork"
3007         host_libs=
3008         ;;
3009     sunos)
3010         FFSERVERLDFLAGS=""
3011         SHFLAGS='-shared -Wl,-h,$$(@F)'
3012         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3013         network_extralibs="-lsocket -lnsl"
3014         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3015         # When using suncc to build, the Solaris linker will mark
3016         # an executable with each instruction set encountered by
3017         # the Solaris assembler.  As our libraries contain their own
3018         # guards for processor-specific code, instead suppress
3019         # generation of the HWCAPS ELF section on Solaris x86 only.
3020         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3021         nm_default='nm -P -g'
3022         ;;
3023     netbsd)
3024         disable symver
3025         oss_indev_extralibs="-lossaudio"
3026         oss_outdev_extralibs="-lossaudio"
3027         enabled gcc || check_ldflags -Wl,-zmuldefs
3028         ;;
3029     openbsd|bitrig)
3030         # On OpenBSD 4.5. the compiler does not use PIC unless
3031         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3032         # however the generated executable will not do anything
3033         # (simply quits with exit-code 1, no crash, no output).
3034         # Thus explicitly enable PIC here.
3035         enable pic
3036         disable symver
3037         SHFLAGS='-shared'
3038         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3039         SLIB_INSTALL_LINKS=
3040         oss_indev_extralibs="-lossaudio"
3041         oss_outdev_extralibs="-lossaudio"
3042         ;;
3043     dragonfly)
3044         disable symver
3045         ;;
3046     freebsd)
3047         ;;
3048     bsd/os)
3049         add_extralibs -lpoll -lgnugetopt
3050         strip="strip -d"
3051         ;;
3052     darwin)
3053         gas="gas-preprocessor.pl $cc"
3054         enabled ppc && add_asflags -force_cpusubtype_ALL
3055         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3056         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3057         strip="${strip} -x"
3058         add_ldflags -Wl,-dynamic,-search_paths_first
3059         SLIBSUF=".dylib"
3060         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3061         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3062         FFSERVERLDFLAGS=-Wl,-bind_at_load
3063         objformat="macho"
3064         enabled x86_64 && objformat="macho64"
3065         enabled_any pic shared ||
3066             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3067         ;;
3068     mingw32*)
3069         if test $target_os = "mingw32ce"; then
3070             disable network
3071         else
3072             target_os=mingw32
3073         fi
3074         LIBTARGET=i386
3075         if enabled x86_64; then
3076             LIBTARGET="i386:x86-64"
3077         elif enabled arm; then
3078             LIBTARGET=arm-wince
3079         fi
3080         shlibdir_default="$bindir_default"
3081         SLIBPREF=""
3082         SLIBSUF=".dll"
3083         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3084         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3085         dlltool="${cross_prefix}dlltool"
3086         if check_cmd lib.exe -list; then
3087             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3088             if enabled x86_64; then
3089                 LIBTARGET=x64
3090             fi
3091         elif check_cmd $dlltool --version; then
3092             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3093         fi
3094         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3095         SLIB_INSTALL_LINKS=
3096         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3097         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3098         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3099         objformat="win32"
3100         ranlib=:
3101         enable dos_paths
3102         check_cflags -fno-common
3103         add_cppflags -U__STRICT_ANSI__
3104         ;;
3105     cygwin*)
3106         target_os=cygwin
3107         shlibdir_default="$bindir_default"
3108         SLIBPREF="cyg"
3109         SLIBSUF=".dll"
3110         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3111         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3112         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3113         SLIB_INSTALL_LINKS=
3114         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3115         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3116         objformat="win32"
3117         enable dos_paths
3118         check_cflags -fno-common
3119         add_cppflags -U__STRICT_ANSI__
3120         ;;
3121     *-dos|freedos|opendos)
3122         network_extralibs="-lsocket"
3123         objformat="coff"
3124         enable dos_paths
3125         add_cppflags -U__STRICT_ANSI__
3126         ;;
3127     linux)
3128         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3129         enable dv1394
3130         ;;
3131     irix*)
3132         target_os=irix
3133         ranlib="echo ignoring ranlib"
3134         ;;
3135     os/2*)
3136         strip="lxlite -CS"
3137         ln_s="cp -f"
3138         objformat="aout"
3139         add_cppflags -D_GNU_SOURCE
3140         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3141         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3142         FFSERVERLDFLAGS=""
3143         LIBSUF="_s.a"
3144         SLIBPREF=""
3145         SLIBSUF=".dll"
3146         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3147         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3148         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3149             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3150             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3151             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3152             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3153             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3154         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3155             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3156         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3157         enable dos_paths
3158         enable_weak os2threads
3159         ;;
3160     gnu/kfreebsd)
3161         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3162         ;;
3163     gnu)
3164         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3165         ;;
3166     qnx)
3167         add_cppflags -D_QNX_SOURCE
3168         network_extralibs="-lsocket"
3169         ;;
3170     symbian)
3171         SLIBSUF=".dll"
3172         enable dos_paths
3173         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3174         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3175         add_ldflags -Wl,--target1-abs,--no-undefined \
3176                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3177                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3178         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3179                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3180                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3181         ;;
3182     none)
3183         ;;
3184     *)
3185         die "Unknown OS '$target_os'."
3186         ;;
3187 esac
3188
3189 # determine libc flavour
3190
3191 if check_cpp_condition features.h "defined __UCLIBC__"; then
3192     libc_type=uclibc
3193 elif check_cpp_condition features.h "defined __GLIBC__"; then
3194     libc_type=glibc
3195 elif check_header _mingw.h; then
3196     libc_type=mingw
3197     check_cpp_condition _mingw.h \
3198         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3199             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3200         die "ERROR: MinGW runtime version must be >= 3.15."
3201     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3202             __MINGW64_VERSION_MAJOR < 3"; then
3203         enable broken_snprintf
3204         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3205     fi
3206 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3207     libc_type=newlib
3208 elif check_func_headers stdlib.h _get_doserrno; then
3209     libc_type=msvcrt
3210     enable broken_snprintf
3211     add_cflags -Dstrtod=avpriv_strtod
3212     add_cflags -Dsnprintf=avpriv_snprintf   \
3213                -D_snprintf=avpriv_snprintf  \
3214                -Dvsnprintf=avpriv_vsnprintf
3215 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3216     libc_type=klibc
3217 fi
3218
3219 test -n "$libc_type" && enable $libc_type
3220
3221 esc(){
3222     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3223 }
3224
3225 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3226
3227 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3228
3229 set_default $PATHS_LIST
3230 set_default nm
3231
3232 # we need to build at least one lib type
3233 if ! enabled_any static shared; then
3234     cat <<EOF
3235 At least one library type must be built.
3236 Specify --enable-static to build the static libraries or --enable-shared to
3237 build the shared libraries as well. To only build the shared libraries specify
3238 --disable-static in addition to --enable-shared.
3239 EOF
3240     exit 1;
3241 fi
3242
3243 die_license_disabled() {
3244     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3245 }
3246
3247 die_license_disabled_gpl() {
3248     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3249 }
3250
3251 die_license_disabled gpl libcdio
3252 die_license_disabled gpl libutvideo
3253 die_license_disabled gpl libx264
3254 die_license_disabled gpl libxavs
3255 die_license_disabled gpl libxvid
3256 die_license_disabled gpl x11grab
3257
3258 die_license_disabled nonfree libaacplus
3259 die_license_disabled nonfree libfaac
3260 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3261 enabled gpl && die_license_disabled_gpl nonfree openssl
3262
3263 die_license_disabled version3 libopencore_amrnb
3264 die_license_disabled version3 libopencore_amrwb
3265 die_license_disabled version3 libvo_aacenc
3266 die_license_disabled version3 libvo_amrwbenc
3267
3268 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3269
3270 disabled optimizations || check_cflags -fomit-frame-pointer
3271
3272 enable_pic() {
3273     enable pic
3274     add_cppflags -DPIC
3275     add_cflags   -fPIC
3276     add_asflags  -fPIC
3277 }
3278
3279 enabled pic && enable_pic
3280
3281 check_cc <<EOF || die "Symbol mangling check failed."
3282 int ff_extern;
3283 EOF
3284 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3285 extern_prefix=${sym%%ff_extern*}
3286
3287 check_cc <<EOF && enable_weak inline_asm
3288 void foo(void) { __asm__ volatile ("" ::); }
3289 EOF
3290
3291 _restrict=
3292 for restrict_keyword in restrict __restrict__ __restrict; do
3293     check_cc <<EOF && _restrict=$restrict_keyword && break
3294 void foo(char * $restrict_keyword p);
3295 EOF
3296 done
3297
3298 check_cc <<EOF && enable attribute_packed
3299 struct { int x; } __attribute__((packed)) x;
3300 EOF
3301
3302 check_cc <<EOF && enable attribute_may_alias
3303 union { int x; } __attribute__((may_alias)) x;
3304 EOF
3305
3306 check_cc <<EOF || die "endian test failed"
3307 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3308 EOF
3309 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3310
3311 if enabled alpha; then
3312
3313     check_cflags -mieee
3314
3315 elif enabled arm; then
3316
3317     enabled thumb && check_cflags -mthumb || check_cflags -marm
3318     nogas=die
3319
3320     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3321         enable vfp_args
3322     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3323         case "${cross_prefix:-$cc}" in
3324             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3325             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3326 __asm__ (".eabi_attribute 28, 1");
3327 int main(void) { return 0; }
3328 EOF
3329         esac
3330         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3331     fi
3332
3333     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3334     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3335     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3336     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3337     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3338     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3339
3340     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3341     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3342
3343     enabled_all armv6t2 shared !pic && enable_pic
3344
3345 elif enabled mips; then
3346
3347     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3348     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3349     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3350      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3351     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3352      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3353     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3354      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3355     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3356      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3357
3358 elif enabled ppc; then
3359
3360     enable local_aligned_8 local_aligned_16
3361
3362     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3363     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3364     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3365     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3366
3367     # AltiVec flags: The FSF version of GCC differs from the Apple version
3368     if enabled altivec; then
3369         nogas=warn
3370         check_cflags -maltivec -mabi=altivec &&
3371         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3372         check_cflags -faltivec
3373
3374         # check if our compiler supports Motorola AltiVec C API
3375         check_cc <<EOF || disable altivec
3376 $inc_altivec_h
3377 int main(void) {
3378     vector signed int v1 = (vector signed int) { 0 };
3379     vector signed int v2 = (vector signed int) { 1 };
3380     v1 = vec_add(v1, v2);
3381     return 0;
3382 }
3383 EOF
3384
3385         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3386     fi
3387
3388 elif enabled sparc; then
3389
3390     enabled vis &&
3391         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3392             add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3393
3394 elif enabled x86; then
3395
3396     check_code ld immintrin.h "return __xgetbv(0)" "cc" && enable xgetbv
3397     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3398     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3399     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3400
3401     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3402
3403     enable local_aligned_8 local_aligned_16
3404
3405     # check whether EBP is available on x86
3406     # As 'i' is stored on the stack, this program will crash
3407     # if the base pointer is used to access it because the
3408     # base pointer is cleared in the inline assembly code.
3409     check_exec_crash <<EOF && enable ebp_available
3410 volatile int i=0;
3411 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3412 return i;
3413 EOF
3414
3415     # check whether EBX is available on x86
3416     check_inline_asm ebx_available '""::"b"(0)' &&
3417         check_inline_asm ebx_available '"":::"%ebx"'
3418
3419     # check whether xmm clobbers are supported
3420     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3421
3422     # check whether binutils is new enough to compile SSSE3/MMXEXT
3423     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3424     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3425
3426     if ! disabled_any asm mmx yasm; then
3427         if check_cmd $yasmexe --version; then
3428             enabled x86_64 && yasm_extra="-m amd64"
3429             yasm_debug="-g dwarf2"
3430         elif check_cmd nasm -v; then
3431             yasmexe=nasm
3432             yasm_debug="-g -F dwarf"
3433             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3434         fi
3435
3436         YASMFLAGS="-f $objformat $yasm_extra"
3437         enabled pic               && append YASMFLAGS "-DPIC"
3438         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3439         case "$objformat" in
3440             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3441         esac
3442
3443         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3444             die "yasm not found, use --disable-yasm for a crippled build"
3445         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3446         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3447         check_yasm "CPU amdnop" && enable cpunop
3448     fi
3449
3450     case "$cpu" in
3451         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3452             disable fast_clz
3453         ;;
3454     esac
3455
3456 fi
3457
3458 if enabled asm; then
3459     as=${gas:=$as}
3460     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3461         $nogas "GNU assembler not found, install gas-preprocessor"
3462 fi
3463
3464 check_ldflags -Wl,--as-needed
3465
3466 if check_func dlopen; then
3467     ldl=
3468 elif check_func dlopen -ldl; then
3469     ldl=-ldl
3470 fi
3471
3472 if enabled network; then
3473     check_type "sys/types.h sys/socket.h" socklen_t
3474     check_type netdb.h "struct addrinfo"
3475     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3476     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3477     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3478     check_type netinet/in.h "struct sockaddr_in6"
3479     check_type poll.h "struct pollfd"
3480     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3481     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3482     check_type netinet/sctp.h "struct sctp_event_subscribe"
3483     check_func getaddrinfo $network_extralibs
3484     # Prefer arpa/inet.h over winsock2
3485     if check_header arpa/inet.h ; then
3486         check_func closesocket
3487     elif check_header winsock2.h ; then
3488         check_func_headers winsock2.h closesocket -lws2 &&
3489             network_extralibs="-lws2" ||
3490         { check_func_headers winsock2.h closesocket -lws2_32 &&
3491             network_extralibs="-lws2_32"; }
3492         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3493         check_type ws2tcpip.h socklen_t
3494         check_type ws2tcpip.h "struct addrinfo"
3495         check_type ws2tcpip.h "struct group_source_req"
3496         check_type ws2tcpip.h "struct ip_mreq_source"
3497         check_type ws2tcpip.h "struct ipv6_mreq"
3498         check_type winsock2.h "struct pollfd"
3499         check_type ws2tcpip.h "struct sockaddr_in6"
3500         check_type ws2tcpip.h "struct sockaddr_storage"
3501         check_struct winsock2.h "struct sockaddr" sa_len
3502     else
3503         disable network
3504     fi
3505 fi
3506
3507 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3508 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3509
3510 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3511 check_func  fcntl
3512 check_func  fork
3513 check_func  gethrtime
3514 check_func  getopt
3515 check_func  getrusage
3516 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3517 check_func  gettimeofday
3518 check_func  inet_aton $network_extralibs
3519 check_func  isatty
3520 check_func  localtime_r
3521 check_func  ${malloc_prefix}memalign            && enable memalign
3522 check_func  mkstemp
3523 check_func  mmap
3524 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3525 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3526 check_func  setrlimit
3527 check_func  strerror_r
3528 check_func  sched_getaffinity
3529 check_func  sysconf
3530 check_func  sysctl
3531 check_func  usleep
3532 check_func_headers conio.h kbhit
3533 check_func_headers windows.h PeekNamedPipe
3534 check_func_headers io.h setmode
3535 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3536 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3537 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3538 check_func_headers windows.h GetProcessAffinityMask
3539 check_func_headers windows.h GetProcessTimes
3540 check_func_headers windows.h GetSystemTimeAsFileTime
3541 check_func_headers windows.h MapViewOfFile
3542 check_func_headers windows.h Sleep
3543 check_func_headers windows.h VirtualAlloc
3544 check_func_headers glob.h glob
3545
3546 check_header direct.h
3547 check_header dlfcn.h
3548 check_header dxva.h
3549 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3550 check_header io.h
3551 check_header libcrystalhd/libcrystalhd_if.h
3552 check_header malloc.h
3553 check_header poll.h
3554 check_header sys/mman.h
3555 check_header sys/param.h
3556 check_header sys/resource.h
3557 check_header sys/select.h
3558 check_header sys/time.h
3559 check_header termios.h
3560 check_header unistd.h
3561 check_header vdpau/vdpau.h
3562 check_header vdpau/vdpau_x11.h
3563 check_header windows.h
3564 check_header X11/extensions/XvMClib.h
3565 check_header asm/types.h
3566
3567 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3568 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3569
3570 # check for VDA header
3571 if ! disabled vda && ! enabled ppc; then
3572     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3573         enable vda
3574         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3575     fi
3576 fi
3577
3578 if ! disabled w32threads && ! enabled pthreads; then
3579     check_func _beginthreadex && enable w32threads
3580 fi
3581
3582 # check for some common methods of building with pthread support
3583 # do this before the optional library checks as some of them require pthreads
3584 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3585     enable pthreads
3586     if check_func pthread_create; then
3587         :
3588     elif check_func pthread_create -pthread; then
3589         add_cflags -pthread
3590         add_extralibs -pthread
3591     elif check_func pthread_create -pthreads; then
3592         add_cflags -pthreads
3593         add_extralibs -pthreads
3594     elif check_func pthread_create -lpthreadGC2; then
3595         add_extralibs -lpthreadGC2
3596     elif ! check_lib pthread.h pthread_create -lpthread; then
3597         disable pthreads
3598     fi
3599 fi
3600
3601 for thread in $THREADS_LIST; do
3602     if enabled $thread; then
3603         test -n "$thread_type" &&
3604             die "ERROR: Only one thread type must be selected." ||
3605             thread_type="$thread"
3606     fi
3607 done
3608
3609 if enabled pthreads; then
3610   check_func pthread_cancel
3611 fi
3612
3613 check_lib math.h sin -lm && LIBM="-lm"
3614 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3615 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3616
3617 check_mathfunc cbrtf
3618 check_mathfunc exp2
3619 check_mathfunc exp2f
3620 check_mathfunc isinf
3621 check_mathfunc isnan
3622 check_mathfunc llrint
3623 check_mathfunc llrintf
3624 check_mathfunc log2
3625 check_mathfunc log2f
3626 check_mathfunc lrint
3627 check_mathfunc lrintf
3628 check_mathfunc rint
3629 check_mathfunc round
3630 check_mathfunc roundf
3631 check_mathfunc trunc
3632 check_mathfunc truncf
3633
3634 # these are off by default, so fail if requested and not available
3635 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3636 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3637 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3638 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3639 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3640 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3641 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3642 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3643 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3644                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3645                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3646 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3647 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3648 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3649 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
3650 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3651 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3652 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3653 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3654 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3655 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3656 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3657 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3658 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3659 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3660 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3661 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3662 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3663 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3664 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3665 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3666 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3667     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3668     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3669 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3670 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3671                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3672                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3673 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3674 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3675 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3676 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3677 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3678 enabled libvpx     && {
3679     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3680                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3681     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3682                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3683 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3684                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3685                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3686 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3687 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3688 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3689                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3690                         die "ERROR: openal not found"; } &&
3691                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3692                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3693 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3694                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3695                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3696                         die "ERROR: openssl not found"; }
3697
3698 if enabled gnutls; then
3699     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3700     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3701 fi
3702
3703 # libdc1394 check
3704 if enabled libdc1394; then
3705     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3706         enable libdc1394_2; } ||
3707     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3708         enable libdc1394_1; } ||
3709     die "ERROR: No version of libdc1394 found "
3710 fi
3711
3712 SDL_CONFIG="${cross_prefix}sdl-config"
3713 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3714     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3715     enable sdl &&
3716     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3717 else
3718   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3719     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3720     sdl_libs=$("${SDL_CONFIG}" --libs)
3721     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3722     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3723     enable sdl &&
3724     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3725   fi
3726 fi
3727 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3728
3729 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3730 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3731 perl --version > /dev/null 2>&1 && enable perl || disable perl
3732 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3733
3734 check_header linux/fb.h
3735 check_header linux/videodev.h
3736 check_header linux/videodev2.h
3737 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3738
3739 check_header sys/videoio.h
3740
3741 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3742 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3743 # w32api 3.12 had it defined wrong
3744 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3745
3746 check_type "dshow.h" IBaseFilter
3747
3748 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3749 { check_header dev/bktr/ioctl_meteor.h &&
3750   check_header dev/bktr/ioctl_bt848.h; } ||
3751 { check_header machine/ioctl_meteor.h &&
3752   check_header machine/ioctl_bt848.h; } ||
3753 { check_header dev/video/meteor/ioctl_meteor.h &&
3754   check_header dev/video/bktr/ioctl_bt848.h; } ||
3755 check_header dev/ic/bt8xx.h
3756
3757 check_header sndio.h
3758 if check_struct sys/soundcard.h audio_buf_info bytes; then
3759     enable_safe sys/soundcard.h
3760 else
3761     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3762     #include <sys/soundcard.h>
3763     audio_buf_info abc;
3764 EOF
3765 fi
3766 check_header soundcard.h
3767
3768 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3769
3770 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3771     check_func jack_port_get_latency_range -ljack
3772
3773 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3774
3775 enabled libcdio &&
3776     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3777
3778 enabled x11grab                                           &&
3779 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3780 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3781 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3782
3783 if ! disabled vaapi; then
3784     check_lib va/va.h vaInitialize -lva && {
3785         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3786         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3787     } || disable vaapi
3788 fi
3789
3790 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3791     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3792         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3793 fi
3794
3795 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3796 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3797 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"
3798
3799 # add some useful compiler flags if supported
3800 check_cflags -Wdeclaration-after-statement
3801 check_cflags -Wall
3802 check_cflags -Wno-parentheses
3803 check_cflags -Wno-switch
3804 check_cflags -Wno-format-zero-length
3805 check_cflags -Wdisabled-optimization
3806 check_cflags -Wpointer-arith
3807 check_cflags -Wredundant-decls
3808 check_cflags -Wno-pointer-sign
3809 check_cflags -Wwrite-strings
3810 check_cflags -Wtype-limits
3811 check_cflags -Wundef
3812 check_cflags -Wmissing-prototypes
3813 check_cflags -Wno-pointer-to-int-cast
3814 check_cflags -Wstrict-prototypes
3815 enabled extra_warnings && check_cflags -Winline
3816
3817 # add some linker flags
3818 check_ldflags -Wl,--warn-common
3819 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3820 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3821
3822 enabled xmm_clobber_test &&
3823     check_ldflags -Wl,--wrap,avcodec_open2              \
3824                   -Wl,--wrap,avcodec_decode_audio4      \
3825                   -Wl,--wrap,avcodec_decode_video2      \
3826                   -Wl,--wrap,avcodec_decode_subtitle2   \
3827                   -Wl,--wrap,avcodec_encode_audio2      \
3828                   -Wl,--wrap,avcodec_encode_video       \
3829                   -Wl,--wrap,avcodec_encode_subtitle    \
3830                   -Wl,--wrap,sws_scale ||
3831     disable xmm_clobber_test
3832
3833 echo "X{};" > $TMPV
3834 if test_ldflags -Wl,--version-script,$TMPV; then
3835     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3836     check_cc <<EOF && enable symver_asm_label
3837 void ff_foo(void) __asm__ ("av_foo@VERSION");
3838 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3839 EOF
3840     check_cc <<EOF && enable symver_gnu_asm
3841 __asm__(".symver ff_foo,av_foo@VERSION");
3842 void ff_foo(void) {}
3843 EOF
3844 fi
3845
3846 if [ -n "$optflags" ]; then
3847     add_cflags $optflags
3848 elif enabled small; then
3849     add_cflags $cflags_size
3850 elif enabled optimizations; then
3851     add_cflags $cflags_speed
3852 else
3853     add_cflags $cflags_noopt
3854 fi
3855 check_cflags -fno-math-errno
3856 check_cflags -fno-signed-zeros
3857 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3858 int x;
3859 EOF
3860
3861
3862 if enabled icc; then
3863     # Just warnings, no remarks
3864     check_cflags -w1
3865     # -wd: Disable following warnings
3866     # 144, 167, 556: -Wno-pointer-sign
3867     # 1292: attribute "foo" ignored
3868     # 1419: external declaration in primary source file
3869     # 10006: ignoring unknown option -fno-signed-zeros
3870     # 10148: ignoring unknown option -Wno-parentheses
3871     # 10156: ignoring option '-W'; no argument required
3872     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3873     # 11030: Warning unknown option --as-needed
3874     # 10156: ignoring option '-export'; no argument required
3875     check_ldflags -wd10156,11030
3876     # Allow to compile with optimizations
3877     check_ldflags -march=$cpu
3878     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3879     enable ebp_available
3880     if enabled x86_32; then
3881         icc_version=$($cc -dumpversion)
3882         test ${icc_version%%.*} -ge 11 &&
3883             check_cflags -falign-stack=maintain-16-byte ||
3884             disable aligned_stack
3885     fi
3886 elif enabled ccc; then
3887     # disable some annoying warnings
3888     add_cflags -msg_disable cvtu32to64
3889     add_cflags -msg_disable embedcomment
3890     add_cflags -msg_disable needconstext
3891     add_cflags -msg_disable nomainieee
3892     add_cflags -msg_disable ptrmismatch1
3893     add_cflags -msg_disable unreachcode
3894 elif enabled gcc; then
3895     check_cflags -fno-tree-vectorize
3896     check_cflags -Werror=implicit-function-declaration
3897     check_cflags -Werror=missing-prototypes
3898     check_cflags -Werror=return-type
3899 elif enabled llvm_gcc; then
3900     check_cflags -mllvm -stack-alignment=16
3901 elif enabled clang; then
3902     check_cflags -mllvm -stack-alignment=16
3903     check_cflags -Qunused-arguments
3904     check_cflags -Werror=return-type
3905 elif enabled armcc; then
3906     # 2523: use of inline assembler is deprecated
3907     add_cflags -W${armcc_opt},--diag_suppress=2523
3908     add_cflags -W${armcc_opt},--diag_suppress=1207
3909     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3910     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3911     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3912     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3913 elif enabled tms470; then
3914     add_cflags -pds=824 -pds=837
3915 elif enabled pathscale; then
3916     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3917 elif enabled msvc; then
3918     enabled x86_32 && disable aligned_stack
3919 fi
3920
3921 enabled_any $THREADS_LIST      && enable threads
3922
3923 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3924
3925 check_deps $CONFIG_LIST       \
3926            $CONFIG_EXTRA      \
3927            $HAVE_LIST         \
3928            $ALL_COMPONENTS    \
3929            $ALL_TESTS         \
3930
3931
3932 if test $target_os = "haiku"; then
3933     disable memalign
3934     disable posix_memalign
3935 fi
3936
3937 ! enabled_any memalign posix_memalign aligned_malloc &&
3938     enabled_any $need_memalign && enable memalign_hack
3939
3940 # add_dep lib dep
3941 # -> enable ${lib}_deps_${dep}
3942 # -> add $dep to ${lib}_deps only once
3943 add_dep() {
3944     lib=$1
3945     dep=$2
3946     enabled "${lib}_deps_${dep}" && return 0
3947     enable  "${lib}_deps_${dep}"
3948     prepend "${lib}_deps" $dep
3949 }
3950
3951 # merge deps lib components
3952 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3953 merge_deps() {
3954     lib=$1
3955     shift
3956     for comp in $*; do
3957         enabled $comp || continue
3958         eval "dep=\"\$${comp}_deps\""
3959         for d in $dep; do
3960             add_dep $lib $d
3961         done
3962     done
3963 }
3964
3965 merge_deps libavfilter $FILTER_LIST
3966
3967 echo "install prefix            $prefix"
3968 echo "source path               $source_path"
3969 echo "C compiler                $cc"
3970 echo "ARCH                      $arch ($cpu)"
3971 if test "$build_suffix" != ""; then
3972     echo "build suffix              $build_suffix"
3973 fi
3974 if test "$progs_suffix" != ""; then
3975     echo "progs suffix              $progs_suffix"
3976 fi
3977 if test "$extra_version" != ""; then
3978     echo "version string suffix     $extra_version"
3979 fi
3980 echo "big-endian                ${bigendian-no}"
3981 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3982 if enabled x86; then
3983     echo "${yasmexe}                      ${yasm-no}"
3984     echo "MMX enabled               ${mmx-no}"
3985     echo "MMXEXT enabled            ${mmxext-no}"
3986     echo "3DNow! enabled            ${amd3dnow-no}"
3987     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3988     echo "SSE enabled               ${sse-no}"
3989     echo "SSSE3 enabled             ${ssse3-no}"
3990     echo "AVX enabled               ${avx-no}"
3991     echo "FMA4 enabled              ${fma4-no}"
3992     echo "CMOV enabled              ${cmov-no}"
3993     echo "CMOV is fast              ${fast_cmov-no}"
3994     echo "EBX available             ${ebx_available-no}"
3995     echo "EBP available             ${ebp_available-no}"
3996 fi
3997 if enabled arm; then
3998     echo "ARMv5TE enabled           ${armv5te-no}"
3999     echo "ARMv6 enabled             ${armv6-no}"
4000     echo "ARMv6T2 enabled           ${armv6t2-no}"
4001     echo "ARM VFP enabled           ${armvfp-no}"
4002     echo "NEON enabled              ${neon-no}"
4003 fi
4004 if enabled mips; then
4005     echo "MMI enabled               ${mmi-no}"
4006     echo "MIPS FPU enabled          ${mipsfpu-no}"
4007     echo "MIPS32R2 enabled          ${mips32r2-no}"
4008     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4009     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4010 fi
4011 if enabled ppc; then
4012     echo "AltiVec enabled           ${altivec-no}"
4013     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4014     echo "dcbzl available           ${dcbzl-no}"
4015 fi
4016 if enabled sparc; then
4017     echo "VIS enabled               ${vis-no}"
4018 fi
4019 echo "debug symbols             ${debug-no}"
4020 echo "strip symbols             ${stripping-no}"
4021 echo "optimize for size         ${small-no}"
4022 echo "optimizations             ${optimizations-no}"
4023 echo "static                    ${static-no}"
4024 echo "shared                    ${shared-no}"
4025 echo "postprocessing support    ${postproc-no}"
4026 echo "new filter support        ${avfilter-no}"
4027 echo "network support           ${network-no}"
4028 echo "threading support         ${thread_type-no}"
4029 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4030 echo "SDL support               ${sdl-no}"
4031 echo "libdxva2 enabled          ${dxva2-no}"
4032 echo "libva enabled             ${vaapi-no}"
4033 echo "libvdpau enabled          ${vdpau-no}"
4034 echo "AVISynth enabled          ${avisynth-no}"
4035 echo "frei0r enabled            ${frei0r-no}"
4036 echo "gnutls enabled            ${gnutls-no}"
4037 echo "libaacplus enabled        ${libaacplus-no}"
4038 echo "libass enabled            ${libass-no}"
4039 echo "libcaca enabled           ${libcaca-no}"
4040 echo "libcdio support           ${libcdio-no}"
4041 echo "libcelt enabled           ${libcelt-no}"
4042 echo "libdc1394 support         ${libdc1394-no}"
4043 echo "libfaac enabled           ${libfaac-no}"
4044 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4045 echo "libgsm enabled            ${libgsm-no}"
4046 echo "libiec61883 support       ${libiec61883-no}"
4047 echo "libilbc enabled           ${libilbc-no}"
4048 echo "libmodplug enabled        ${libmodplug-no}"
4049 echo "libmp3lame enabled        ${libmp3lame-no}"
4050 echo "libnut enabled            ${libnut-no}"
4051 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4052 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4053 echo "libopencv support         ${libopencv-no}"
4054 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4055 echo "libopus enabled           ${libopus-no}"
4056 echo "libpulse enabled          ${libpulse-no}"
4057 echo "librtmp enabled           ${librtmp-no}"
4058 echo "libschroedinger enabled   ${libschroedinger-no}"
4059 echo "libspeex enabled          ${libspeex-no}"
4060 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4061 echo "libtheora enabled         ${libtheora-no}"
4062 echo "libtwolame enabled        ${libtwolame-no}"
4063 echo "libutvideo enabled        ${libutvideo-no}"
4064 echo "libv4l2 enabled           ${libv4l2-no}"
4065 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4066 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4067 echo "libvorbis enabled         ${libvorbis-no}"
4068 echo "libvpx enabled            ${libvpx-no}"
4069 echo "libx264 enabled           ${libx264-no}"
4070 echo "libxavs enabled           ${libxavs-no}"
4071 echo "libxvid enabled           ${libxvid-no}"
4072 echo "openal enabled            ${openal-no}"
4073 echo "openssl enabled           ${openssl-no}"
4074 echo "zlib enabled              ${zlib-no}"
4075 echo "bzlib enabled             ${bzlib-no}"
4076 echo "texi2html enabled         ${texi2html-no}"
4077 echo "perl enabled              ${perl-no}"
4078 echo "pod2man enabled           ${pod2man-no}"
4079 echo "makeinfo enabled          ${makeinfo-no}"
4080 test -n "$random_seed" &&
4081     echo "random seed               ${random_seed}"
4082 echo
4083
4084 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4085     echo "Enabled ${type}s:"
4086     eval list=\$$(toupper $type)_LIST
4087     print_enabled '_*' $list | sort | pr -r -3 -t
4088     echo
4089 done
4090
4091 license="LGPL version 2.1 or later"
4092 if enabled nonfree; then
4093     license="nonfree and unredistributable"
4094 elif enabled gplv3; then
4095     license="GPL version 3 or later"
4096 elif enabled lgplv3; then
4097     license="LGPL version 3 or later"
4098 elif enabled gpl; then
4099     license="GPL version 2 or later"
4100 fi
4101
4102 echo "License: $license"
4103
4104 echo "Creating config.mak and config.h..."
4105
4106 test -e Makefile || $ln_s "$source_path/Makefile" .
4107
4108 enabled stripping || strip="echo skipping strip"
4109
4110 config_files="$TMPH config.mak"
4111
4112 cat > config.mak <<EOF
4113 # Automatically generated by configure - do not modify!
4114 ifndef FFMPEG_CONFIG_MAK
4115 FFMPEG_CONFIG_MAK=1
4116 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4117 prefix=$prefix
4118 LIBDIR=\$(DESTDIR)$libdir
4119 SHLIBDIR=\$(DESTDIR)$shlibdir
4120 INCDIR=\$(DESTDIR)$incdir
4121 BINDIR=\$(DESTDIR)$bindir
4122 DATADIR=\$(DESTDIR)$datadir
4123 MANDIR=\$(DESTDIR)$mandir
4124 SRC_PATH=$source_path
4125 ifndef MAIN_MAKEFILE
4126 SRC_PATH:=\$(SRC_PATH:.%=..%)
4127 endif
4128 CC_IDENT=$cc_ident
4129 ARCH=$arch
4130 CC=$cc
4131 CXX=$cxx
4132 AS=$as
4133 LD=$ld
4134 DEPCC=$dep_cc
4135 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4136 DEPAS=$as
4137 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4138 YASM=$yasmexe
4139 DEPYASM=$yasmexe
4140 AR=$ar
4141 ARFLAGS=$arflags
4142 AR_O=$ar_o
4143 RANLIB=$ranlib
4144 CP=cp -p
4145 LN_S=$ln_s
4146 STRIP=$strip
4147 CPPFLAGS=$CPPFLAGS
4148 CFLAGS=$CFLAGS
4149 CXXFLAGS=$CXXFLAGS
4150 ASFLAGS=$ASFLAGS
4151 AS_C=$AS_C
4152 AS_O=$AS_O
4153 CC_C=$CC_C
4154 CC_O=$CC_O
4155 CXX_C=$CXX_C
4156 CXX_O=$CXX_O
4157 LD_O=$LD_O
4158 LD_LIB=$LD_LIB
4159 LD_PATH=$LD_PATH
4160 DLLTOOL=$dlltool
4161 LDFLAGS=$LDFLAGS
4162 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4163 SHFLAGS=$SHFLAGS
4164 YASMFLAGS=$YASMFLAGS
4165 BUILDSUF=$build_suffix
4166 PROGSSUF=$progs_suffix
4167 FULLNAME=$FULLNAME
4168 LIBPREF=$LIBPREF
4169 LIBSUF=$LIBSUF
4170 LIBNAME=$LIBNAME
4171 SLIBPREF=$SLIBPREF
4172 SLIBSUF=$SLIBSUF
4173 EXESUF=$EXESUF
4174 EXTRA_VERSION=$extra_version
4175 CCDEP=$CCDEP
4176 CXXDEP=$CXXDEP
4177 CCDEP_FLAGS=$CCDEP_FLAGS
4178 ASDEP=$ASDEP
4179 ASDEP_FLAGS=$ASDEP_FLAGS
4180 CC_DEPFLAGS=$CC_DEPFLAGS
4181 AS_DEPFLAGS=$AS_DEPFLAGS
4182 HOSTCC=$host_cc
4183 HOSTLD=$host_ld
4184 HOSTCFLAGS=$host_cflags
4185 HOSTEXESUF=$HOSTEXESUF
4186 HOSTLDFLAGS=$host_ldflags
4187 HOSTLIBS=$host_libs
4188 DEPHOSTCC=$host_cc
4189 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4190 HOSTCCDEP=$HOSTCCDEP
4191 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4192 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4193 HOSTCC_C=$HOSTCC_C
4194 HOSTCC_O=$HOSTCC_O
4195 HOSTLD_O=$HOSTLD_O
4196 TARGET_EXEC=$target_exec
4197 TARGET_PATH=$target_path
4198 LIBS-ffplay=$sdl_libs
4199 CFLAGS-ffplay=$sdl_cflags
4200 ZLIB=$($ldflags_filter -lz)
4201 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4202 EXTRALIBS=$extralibs
4203 INSTALL=$install
4204 LIBTARGET=${LIBTARGET}
4205 SLIBNAME=${SLIBNAME}
4206 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4207 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4208 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4209 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4210 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4211 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4212 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4213 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4214 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4215 NOREDZONE_FLAGS=$noredzone_flags
4216 EOF
4217
4218 get_version(){
4219     lcname=$1
4220     name=$(toupper $lcname)
4221     file=$source_path/$lcname/version.h
4222     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4223     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4224     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4225     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4226 }
4227
4228 get_version_old(){
4229     name=$1
4230     file=$source_path/$2
4231 # This condition will be removed when we stop supporting old libpostproc versions
4232 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4233     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4234     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4235 fi
4236     lcname=$(tolower $name)
4237     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4238     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4239 }
4240
4241 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4242 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4243
4244 get_version libavcodec
4245 get_version libavdevice
4246 get_version libavfilter
4247 get_version libavformat
4248 get_version libavresample
4249 get_version libavutil
4250 get_version libswscale
4251
4252 cat > $TMPH <<EOF
4253 /* Automatically generated by configure - do not modify! */
4254 #ifndef FFMPEG_CONFIG_H
4255 #define FFMPEG_CONFIG_H
4256 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4257 #define FFMPEG_LICENSE "$(c_escape $license)"
4258 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4259 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4260 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4261 #define av_restrict $_restrict
4262 #define EXTERN_PREFIX "${extern_prefix}"
4263 #define EXTERN_ASM ${extern_prefix}
4264 #define SLIBSUF "$SLIBSUF"
4265 #define HAVE_MMX2 HAVE_MMXEXT
4266 EOF
4267
4268 test -n "$assert_level" &&
4269     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4270
4271 test -n "$malloc_prefix" &&
4272     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4273
4274 if enabled yasm; then
4275     append config_files $TMPASM
4276     printf '' >$TMPASM
4277 fi
4278
4279 print_config ARCH_   "$config_files" $ARCH_LIST
4280 print_config HAVE_   "$config_files" $HAVE_LIST
4281 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4282                                      $CONFIG_EXTRA      \
4283                                      $ALL_COMPONENTS    \
4284
4285 cat >>config.mak <<EOF
4286 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4287 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4288 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4289 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4290 EOF
4291
4292 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4293 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4294
4295 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4296 cp_if_changed $TMPH config.h
4297 touch .config
4298
4299 enabled yasm && cp_if_changed $TMPASM config.asm
4300
4301 cat > $TMPH <<EOF
4302 /* Generated by ffconf */
4303 #ifndef AVUTIL_AVCONFIG_H
4304 #define AVUTIL_AVCONFIG_H
4305 EOF
4306
4307 test "$postproc_version" != current && cat >> $TMPH <<EOF
4308 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4309 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4310 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4311 EOF
4312
4313 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4314
4315 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4316
4317 cp_if_changed $TMPH libavutil/avconfig.h
4318
4319 test -n "$WARNINGS" && printf "\n$WARNINGS"
4320
4321 # build pkg-config files
4322
4323 pkgconfig_generate(){
4324     name=$1
4325     shortname=${name#lib}${build_suffix}
4326     comment=$2
4327     version=$3
4328     libs=$4
4329     requires=$5
4330     enabled ${name#lib} || return 0
4331     mkdir -p $name
4332     cat <<EOF > $name/$name.pc
4333 prefix=$prefix
4334 exec_prefix=\${prefix}
4335 libdir=$libdir
4336 includedir=$incdir
4337
4338 Name: $name
4339 Description: $comment
4340 Version: $version
4341 Requires: $(enabled shared || echo $requires)
4342 Requires.private: $(enabled shared && echo $requires)
4343 Conflicts:
4344 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4345 Libs.private: $(enabled shared && echo $libs)
4346 Cflags: -I\${includedir}
4347 EOF
4348
4349 mkdir -p doc/examples/pc-uninstalled
4350 includedir=${source_path}
4351 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4352     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4353 prefix=
4354 exec_prefix=
4355 libdir=\${pcfiledir}/../../../$name
4356 includedir=${includedir}
4357
4358 Name: $name
4359 Description: $comment
4360 Version: $version
4361 Requires: $requires
4362 Conflicts:
4363 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4364 Cflags: -I\${includedir}
4365 EOF
4366 }
4367
4368 libavfilter_pc_deps=""
4369 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4370 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4371 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4372 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4373 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4374 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4375
4376 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4377 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4378
4379 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4380 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4381 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4382 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4383 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4384 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4385 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4386 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4387 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4388
4389 fix_ffmpeg_remote(){
4390     git_remote_from=$1
4391     git_remote_to=$2
4392     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4393     if [ "$fixme_remote" != "" ]; then
4394         echolog "
4395 Outdated domain in git config, the official domain for ffmpeg git is since
4396 November 2011, source.ffmpeg.org, both the old and the new point to the same
4397 repository and server. To update it enter the following commands:
4398 "
4399         for remote in $fixme_remote; do
4400             echolog "git remote set-url $remote $git_remote_to"
4401         done
4402     fi
4403 }
4404
4405 if test -f "$source_path/.git/config"; then
4406     remote_from=git.videolan.org
4407     remote_to=source.ffmpeg.org
4408     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4409     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4410 fi