lavfi/select: make lavc dependency optional.
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58     cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 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     cbrtf
1269     clock_gettime
1270     closesocket
1271     cmov
1272     cpuid
1273     cpunop
1274     dcbzl
1275     dev_bktr_ioctl_bt848_h
1276     dev_bktr_ioctl_meteor_h
1277     dev_ic_bt8xx_h
1278     dev_video_bktr_ioctl_bt848_h
1279     dev_video_meteor_ioctl_meteor_h
1280     direct_h
1281     dlfcn_h
1282     dlopen
1283     dos_paths
1284     dxva_h
1285     ebp_available
1286     ebx_available
1287     exp2
1288     exp2f
1289     fast_64bit
1290     fast_clz
1291     fast_cmov
1292     fcntl
1293     fork
1294     getaddrinfo
1295     gethrtime
1296     getopt
1297     GetProcessAffinityMask
1298     GetProcessMemoryInfo
1299     GetProcessTimes
1300     GetSystemTimeAsFileTime
1301     getrusage
1302     gettimeofday
1303     glob
1304     gnu_as
1305     ibm_asm
1306     inet_aton
1307     inline_asm
1308     io_h
1309     isatty
1310     isinf
1311     isnan
1312     jack_port_get_latency_range
1313     kbhit
1314     ldbrx
1315     libdc1394_1
1316     libdc1394_2
1317     llrint
1318     llrintf
1319     local_aligned_16
1320     local_aligned_8
1321     localtime_r
1322     log2
1323     log2f
1324     loongson
1325     lrint
1326     lrintf
1327     lzo1x_999_compress
1328     machine_ioctl_bt848_h
1329     machine_ioctl_meteor_h
1330     makeinfo
1331     malloc_h
1332     MapViewOfFile
1333     memalign
1334     mkstemp
1335     mm_empty
1336     mmap
1337     msvcrt
1338     nanosleep
1339     PeekNamedPipe
1340     perl
1341     pod2man
1342     poll_h
1343     posix_memalign
1344     pthread_cancel
1345     rdtsc
1346     rint
1347     round
1348     roundf
1349     rweflags
1350     sched_getaffinity
1351     sdl
1352     sdl_video_size
1353     setmode
1354     setrlimit
1355     Sleep
1356     sndio_h
1357     socklen_t
1358     soundcard_h
1359     strerror_r
1360     struct_addrinfo
1361     struct_group_source_req
1362     struct_ip_mreq_source
1363     struct_ipv6_mreq
1364     struct_pollfd
1365     struct_rusage_ru_maxrss
1366     struct_sctp_event_subscribe
1367     struct_sockaddr_in6
1368     struct_sockaddr_sa_len
1369     struct_sockaddr_storage
1370     struct_v4l2_frmivalenum_discrete
1371     symver
1372     symver_asm_label
1373     symver_gnu_asm
1374     sysconf
1375     sysctl
1376     sys_mman_h
1377     sys_param_h
1378     sys_resource_h
1379     sys_select_h
1380     sys_soundcard_h
1381     sys_time_h
1382     sys_videoio_h
1383     termios_h
1384     texi2html
1385     threads
1386     trunc
1387     truncf
1388     unistd_h
1389     usleep
1390     vfp_args
1391     VirtualAlloc
1392     windows_h
1393     winsock2_h
1394     xform_asm
1395     xgetbv
1396     xmm_clobbers
1397     yasm
1398 "
1399
1400 # options emitted with CONFIG_ prefix but not available on command line
1401 CONFIG_EXTRA="
1402     aandcttables
1403     ac3dsp
1404     avutil
1405     error_resilience
1406     gcrypt
1407     golomb
1408     gplv3
1409     h264chroma
1410     h264dsp
1411     h264pred
1412     h264qpel
1413     huffman
1414     lgplv3
1415     lpc
1416     mpegaudiodsp
1417     mpegvideo
1418     mpegvideoenc
1419     nettle
1420     rangecoder
1421     rtpdec
1422     sinewin
1423     vp3dsp
1424 "
1425
1426 CMDLINE_SELECT="
1427     $ARCH_EXT_LIST
1428     $CONFIG_LIST
1429     $THREADS_LIST
1430     asm
1431     coverage
1432     cross_compile
1433     debug
1434     extra_warnings
1435     inline_asm
1436     logging
1437     optimizations
1438     stripping
1439     symver
1440     yasm
1441 "
1442
1443 PATHS_LIST='
1444     bindir
1445     datadir
1446     incdir
1447     libdir
1448     mandir
1449     prefix
1450     shlibdir
1451 '
1452
1453 CMDLINE_SET="
1454     $PATHS_LIST
1455     ar
1456     arch
1457     as
1458     assert_level
1459     build_suffix
1460     cc
1461     cpu
1462     cross_prefix
1463     cxx
1464     dep_cc
1465     extra_version
1466     host_cc
1467     host_cflags
1468     host_ld
1469     host_ldflags
1470     host_libs
1471     host_os
1472     install
1473     ld
1474     logfile
1475     malloc_prefix
1476     nm
1477     optflags
1478     pkg_config
1479     postproc_version
1480     progs_suffix
1481     random_seed
1482     samples
1483     strip
1484     sysinclude
1485     sysroot
1486     target_exec
1487     target_os
1488     target_path
1489     toolchain
1490     valgrind
1491     yasmexe
1492 "
1493
1494 CMDLINE_APPEND="
1495     extra_cflags
1496     extra_cxxflags
1497 "
1498
1499 # code dependency declarations
1500
1501 # architecture extensions
1502
1503 armv5te_deps="arm"
1504 armv6_deps="arm"
1505 armv6t2_deps="arm"
1506 armvfp_deps="arm"
1507 neon_deps="arm"
1508 vfpv3_deps="armvfp"
1509
1510 mipsfpu_deps="mips"
1511 mips32r2_deps="mips"
1512 mipsdspr1_deps="mips"
1513 mipsdspr2_deps="mips"
1514 mmi_deps="mips"
1515
1516 altivec_deps="ppc"
1517 ppc4xx_deps="ppc"
1518
1519 vis_deps="sparc"
1520
1521 x86_64_suggest="cmov fast_cmov"
1522
1523 amd3dnow_deps="mmx"
1524 amd3dnowext_deps="amd3dnow"
1525 mmx_deps="x86"
1526 mmxext_deps="mmx"
1527 sse_deps="mmxext"
1528 sse2_deps="sse"
1529 sse3_deps="sse2"
1530 ssse3_deps="sse3"
1531 sse4_deps="ssse3"
1532 sse42_deps="sse4"
1533 avx_deps="sse42"
1534 fma4_deps="avx"
1535
1536 mmx_external_deps="yasm"
1537 mmx_inline_deps="inline_asm"
1538 mmx_suggest="mmx_external mmx_inline"
1539
1540 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1541     eval dep=\$${ext}_deps
1542     eval ${ext}_external_deps='"${dep}_external"'
1543     eval ${ext}_inline_deps='"${dep}_inline"'
1544     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1545 done
1546
1547 aligned_stack_if_any="ppc x86"
1548 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1549 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1550 fast_unaligned_if_any="armv6 ppc x86"
1551
1552 inline_asm_deps="!tms470"
1553 need_memalign="altivec neon sse"
1554
1555 symver_if_any="symver_asm_label symver_gnu_asm"
1556
1557 log2_deps="!msvcrt"
1558
1559 # subsystems
1560 dct_select="rdft"
1561 mdct_select="fft"
1562 rdft_select="fft"
1563 mpegaudiodsp_select="dct"
1564 mpegvideoenc_select="mpegvideo"
1565
1566 # decoders / encoders / hardware accelerators
1567 aac_decoder_select="mdct sinewin"
1568 aac_encoder_select="mdct sinewin"
1569 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1570 ac3_decoder_select="mdct ac3dsp ac3_parser"
1571 ac3_encoder_select="mdct ac3dsp"
1572 ac3_fixed_encoder_select="mdct ac3dsp"
1573 alac_encoder_select="lpc"
1574 amrnb_decoder_select="lsp"
1575 amrwb_decoder_select="lsp"
1576 amv_encoder_select="aandcttables"
1577 atrac1_decoder_select="mdct sinewin"
1578 atrac3_decoder_select="mdct"
1579 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1580 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1581 cavs_decoder_select="golomb mpegvideo"
1582 cook_decoder_select="mdct sinewin"
1583 cscd_decoder_suggest="zlib"
1584 dca_decoder_select="mdct"
1585 dirac_decoder_select="dwt golomb"
1586 dnxhd_encoder_select="aandcttables mpegvideoenc"
1587 dxa_decoder_select="zlib"
1588 eac3_decoder_select="ac3_decoder"
1589 eac3_encoder_select="ac3_encoder"
1590 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1591 eatgq_decoder_select="aandcttables"
1592 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1593 exr_decoder_select="zlib"
1594 ffv1_decoder_select="golomb rangecoder"
1595 ffv1_encoder_select="rangecoder"
1596 ffvhuff_encoder_select="huffman"
1597 flac_decoder_select="golomb"
1598 flac_encoder_select="golomb lpc"
1599 flashsv_decoder_select="zlib"
1600 flashsv_encoder_select="zlib"
1601 flashsv2_encoder_select="zlib"
1602 flashsv2_decoder_select="zlib"
1603 flv_decoder_select="h263_decoder"
1604 flv_encoder_select="h263_encoder"
1605 fraps_decoder_select="huffman"
1606 h261_decoder_select="error_resilience mpegvideo"
1607 h261_encoder_select="aandcttables mpegvideoenc"
1608 h263_decoder_select="error_resilience h263_parser mpegvideo"
1609 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1610 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1611 h263i_decoder_select="h263_decoder"
1612 h263p_encoder_select="h263_encoder"
1613 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1614 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1615 h264_dxva2_hwaccel_deps="dxva2api_h"
1616 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1617 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1618 h264_vda_decoder_select="vda h264_parser h264_decoder"
1619 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1620 h264_vda_hwaccel_select="vda h264_decoder"
1621 h264_vdpau_decoder_select="vdpau h264_decoder"
1622 huffyuv_encoder_select="huffman"
1623 iac_decoder_select="fft mdct sinewin"
1624 imc_decoder_select="fft mdct sinewin"
1625 jpegls_decoder_select="golomb"
1626 jpegls_encoder_select="golomb"
1627 ljpeg_encoder_select="aandcttables mpegvideoenc"
1628 loco_decoder_select="golomb"
1629 mdec_decoder_select="error_resilience mpegvideo"
1630 mjpeg_encoder_select="aandcttables mpegvideoenc"
1631 mlp_decoder_select="mlp_parser"
1632 mp1_decoder_select="mpegaudiodsp"
1633 mp1float_decoder_select="mpegaudiodsp"
1634 mp2_decoder_select="mpegaudiodsp"
1635 mp2float_decoder_select="mpegaudiodsp"
1636 mp3_decoder_select="mpegaudiodsp"
1637 mp3adu_decoder_select="mpegaudiodsp"
1638 mp3adufloat_decoder_select="mpegaudiodsp"
1639 mp3float_decoder_select="mpegaudiodsp"
1640 mp3on4_decoder_select="mpegaudiodsp"
1641 mp3on4float_decoder_select="mpegaudiodsp"
1642 mpc7_decoder_select="mpegaudiodsp"
1643 mpc8_decoder_select="mpegaudiodsp"
1644 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1645 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1646 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1647 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1648 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1649 mpeg1video_decoder_select="error_resilience mpegvideo"
1650 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1651 mpeg2_crystalhd_decoder_select="crystalhd"
1652 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1653 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1654 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1655 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1656 mpeg2video_decoder_select="error_resilience mpegvideo"
1657 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1658 mpeg4_crystalhd_decoder_select="crystalhd"
1659 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1660 mpeg4_encoder_select="h263_encoder"
1661 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1662 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1663 msmpeg4_crystalhd_decoder_select="crystalhd"
1664 msmpeg4v1_decoder_select="h263_decoder"
1665 msmpeg4v1_encoder_select="h263_encoder"
1666 msmpeg4v2_decoder_select="h263_decoder"
1667 msmpeg4v2_encoder_select="h263_encoder"
1668 msmpeg4v3_decoder_select="h263_decoder"
1669 msmpeg4v3_encoder_select="h263_encoder"
1670 mss2_decoder_select="vc1_decoder"
1671 nellymoser_decoder_select="mdct sinewin"
1672 nellymoser_encoder_select="mdct sinewin"
1673 png_decoder_select="zlib"
1674 png_encoder_select="zlib"
1675 qcelp_decoder_select="lsp"
1676 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1677 ra_144_encoder_select="lpc"
1678 ralf_decoder_select="golomb"
1679 rv10_decoder_select="h263_decoder"
1680 rv10_encoder_select="h263_encoder"
1681 rv20_decoder_select="h263_decoder"
1682 rv20_encoder_select="h263_encoder"
1683 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1684 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1685 shorten_decoder_select="golomb"
1686 sipr_decoder_select="lsp"
1687 snow_decoder_select="dwt rangecoder"
1688 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1689 sonic_decoder_select="golomb"
1690 sonic_encoder_select="golomb"
1691 sonic_ls_encoder_select="golomb"
1692 svq1_decoder_select="error_resilience mpegvideo"
1693 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1694 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1695 svq3_decoder_suggest="zlib"
1696 theora_decoder_select="vp3_decoder"
1697 tiff_decoder_suggest="zlib"
1698 tiff_encoder_suggest="zlib"
1699 truehd_decoder_select="mlp_parser"
1700 tscc_decoder_select="zlib"
1701 twinvq_decoder_select="mdct lsp sinewin"
1702 utvideo_encoder_select="huffman"
1703 vc1_crystalhd_decoder_select="crystalhd"
1704 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1705 vc1_dxva2_hwaccel_deps="dxva2api_h"
1706 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1707 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1708 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1709 vc1image_decoder_select="vc1_decoder"
1710 vorbis_decoder_select="mdct"
1711 vorbis_encoder_select="mdct"
1712 vp3_decoder_select="vp3dsp"
1713 vp5_decoder_select="vp3dsp"
1714 vp6_decoder_select="huffman vp3dsp"
1715 vp6a_decoder_select="vp6_decoder"
1716 vp6f_decoder_select="vp6_decoder"
1717 vp8_decoder_select="h264pred h264qpel"
1718 wmapro_decoder_select="mdct sinewin"
1719 wmav1_decoder_select="mdct sinewin"
1720 wmav1_encoder_select="mdct sinewin"
1721 wmav2_decoder_select="mdct sinewin"
1722 wmav2_encoder_select="mdct sinewin"
1723 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1724 wmv1_decoder_select="h263_decoder"
1725 wmv1_encoder_select="h263_encoder"
1726 wmv2_decoder_select="h263_decoder"
1727 wmv2_encoder_select="h263_encoder"
1728 wmv3_decoder_select="vc1_decoder"
1729 wmv3_crystalhd_decoder_select="crystalhd"
1730 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1731 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1732 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1733 wmv3image_decoder_select="wmv3_decoder"
1734 zerocodec_decoder_select="zlib"
1735 zlib_decoder_select="zlib"
1736 zlib_encoder_select="zlib"
1737 zmbv_decoder_select="zlib"
1738 zmbv_encoder_select="zlib"
1739
1740 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1741 vaapi_deps="va_va_h"
1742 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1743 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1744
1745 # parsers
1746 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1747 mpeg4video_parser_select="error_resilience mpegvideo"
1748 mpegvideo_parser_select="error_resilience mpegvideo"
1749 vc1_parser_select="error_resilience mpegvideo"
1750
1751 # external libraries
1752 libaacplus_encoder_deps="libaacplus"
1753 libcelt_decoder_deps="libcelt"
1754 libfaac_encoder_deps="libfaac"
1755 libfdk_aac_encoder_deps="libfdk_aac"
1756 libgsm_decoder_deps="libgsm"
1757 libgsm_encoder_deps="libgsm"
1758 libgsm_ms_decoder_deps="libgsm"
1759 libgsm_ms_encoder_deps="libgsm"
1760 libilbc_decoder_deps="libilbc"
1761 libilbc_encoder_deps="libilbc"
1762 libmodplug_demuxer_deps="libmodplug"
1763 libmp3lame_encoder_deps="libmp3lame"
1764 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1765 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1766 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1767 libopenjpeg_decoder_deps="libopenjpeg"
1768 libopenjpeg_encoder_deps="libopenjpeg"
1769 libopus_decoder_deps="libopus"
1770 libschroedinger_decoder_deps="libschroedinger"
1771 libschroedinger_encoder_deps="libschroedinger"
1772 libspeex_decoder_deps="libspeex"
1773 libspeex_encoder_deps="libspeex"
1774 libstagefright_h264_decoder_deps="libstagefright_h264"
1775 libtheora_encoder_deps="libtheora"
1776 libtwolame_encoder_deps="libtwolame"
1777 libvo_aacenc_encoder_deps="libvo_aacenc"
1778 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1779 libvorbis_decoder_deps="libvorbis"
1780 libvorbis_encoder_deps="libvorbis"
1781 libvpx_decoder_deps="libvpx"
1782 libvpx_encoder_deps="libvpx"
1783 libx264_encoder_deps="libx264"
1784 libx264rgb_encoder_deps="libx264"
1785 libxavs_encoder_deps="libxavs"
1786 libxvid_encoder_deps="libxvid"
1787 libutvideo_decoder_deps="libutvideo"
1788 libutvideo_encoder_deps="libutvideo"
1789
1790 # demuxers / muxers
1791 ac3_demuxer_select="ac3_parser"
1792 asf_stream_muxer_select="asf_muxer"
1793 avisynth_demuxer_deps="avisynth"
1794 dirac_demuxer_select="dirac_parser"
1795 eac3_demuxer_select="ac3_parser"
1796 flac_demuxer_select="flac_parser"
1797 ipod_muxer_select="mov_muxer"
1798 libnut_demuxer_deps="libnut"
1799 libnut_muxer_deps="libnut"
1800 matroska_audio_muxer_select="matroska_muxer"
1801 matroska_demuxer_suggest="zlib bzlib"
1802 mov_demuxer_suggest="zlib"
1803 mp3_demuxer_select="mpegaudio_parser"
1804 mp4_muxer_select="mov_muxer"
1805 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1806 mpegtsraw_demuxer_select="mpegts_demuxer"
1807 mxf_d10_muxer_select="mxf_muxer"
1808 ogg_demuxer_select="golomb"
1809 psp_muxer_select="mov_muxer"
1810 rtp_demuxer_select="sdp_demuxer"
1811 rtp_muxer_select="mpegvideo"
1812 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1813 rtsp_demuxer_select="http_protocol rtpdec"
1814 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1815 sap_demuxer_select="sdp_demuxer"
1816 sap_muxer_select="rtp_muxer rtp_protocol"
1817 sdp_demuxer_select="rtpdec"
1818 smoothstreaming_muxer_select="ismv_muxer"
1819 spdif_muxer_select="aac_parser"
1820 tg2_muxer_select="mov_muxer"
1821 tgp_muxer_select="mov_muxer"
1822 w64_demuxer_deps="wav_demuxer"
1823
1824 # indevs / outdevs
1825 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1826 alsa_outdev_deps="alsa_asoundlib_h"
1827 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1828 caca_outdev_deps="libcaca"
1829 dshow_indev_deps="IBaseFilter"
1830 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1831 dv1394_indev_deps="dv1394 dv_demuxer"
1832 fbdev_indev_deps="linux_fb_h"
1833 iec61883_indev_deps="libiec61883"
1834 jack_indev_deps="jack_jack_h sem_timedwait"
1835 lavfi_indev_deps="avfilter"
1836 libcdio_indev_deps="libcdio"
1837 libdc1394_indev_deps="libdc1394"
1838 libv4l2_indev_deps="libv4l2"
1839 openal_indev_deps="openal"
1840 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1841 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1842 pulse_indev_deps="libpulse"
1843 sdl_outdev_deps="sdl"
1844 sndio_indev_deps="sndio_h"
1845 sndio_outdev_deps="sndio_h"
1846 v4l_indev_deps="linux_videodev_h"
1847 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1848 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1849 vfwcap_indev_extralibs="-lavicap32"
1850 x11grab_indev_deps="x11grab"
1851
1852 # protocols
1853 bluray_protocol_deps="libbluray"
1854 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1855 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1856 ffrtmpcrypt_protocol_select="tcp_protocol"
1857 ffrtmphttp_protocol_deps="!librtmp_protocol"
1858 ffrtmphttp_protocol_select="http_protocol"
1859 gopher_protocol_deps="network"
1860 httpproxy_protocol_deps="network"
1861 httpproxy_protocol_select="tcp_protocol"
1862 http_protocol_deps="network"
1863 http_protocol_select="tcp_protocol"
1864 https_protocol_select="tls_protocol"
1865 librtmp_protocol_deps="librtmp"
1866 librtmpe_protocol_deps="librtmp"
1867 librtmps_protocol_deps="librtmp"
1868 librtmpt_protocol_deps="librtmp"
1869 librtmpte_protocol_deps="librtmp"
1870 mmsh_protocol_select="http_protocol"
1871 mmst_protocol_deps="network"
1872 rtmp_protocol_deps="!librtmp_protocol"
1873 rtmp_protocol_select="tcp_protocol"
1874 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1875 rtmps_protocol_deps="!librtmp_protocol"
1876 rtmps_protocol_select="tls_protocol"
1877 rtmpt_protocol_select="ffrtmphttp_protocol"
1878 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1879 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1880 rtp_protocol_select="udp_protocol"
1881 sctp_protocol_deps="network struct_sctp_event_subscribe"
1882 tcp_protocol_deps="network"
1883 tls_protocol_deps_any="openssl gnutls"
1884 tls_protocol_select="tcp_protocol"
1885 udp_protocol_deps="network"
1886
1887 # filters
1888 aconvert_filter_deps="swresample"
1889 amovie_filter_deps="avcodec avformat"
1890 aresample_filter_deps="swresample"
1891 ass_filter_deps="libass"
1892 asyncts_filter_deps="avresample"
1893 atempo_filter_deps="avcodec rdft"
1894 blackframe_filter_deps="gpl"
1895 boxblur_filter_deps="gpl"
1896 colormatrix_filter_deps="gpl"
1897 cropdetect_filter_deps="gpl"
1898 decimate_filter_deps="gpl avcodec"
1899 delogo_filter_deps="gpl"
1900 deshake_filter_deps="avcodec"
1901 drawtext_filter_deps="libfreetype"
1902 flite_filter_deps="libflite"
1903 frei0r_filter_deps="frei0r dlopen"
1904 frei0r_filter_extralibs='$ldl'
1905 frei0r_src_filter_deps="frei0r dlopen"
1906 frei0r_src_filter_extralibs='$ldl'
1907 hqdn3d_filter_deps="gpl"
1908 movie_filter_deps="avcodec avformat"
1909 mp_filter_deps="gpl avcodec swscale postproc inline_asm"
1910 mptestsrc_filter_deps="gpl"
1911 negate_filter_deps="lut_filter"
1912 resample_filter_deps="avresample"
1913 ocv_filter_deps="libopencv"
1914 pan_filter_deps="swresample"
1915 removelogo_filter_deps="avcodec avformat swscale"
1916 scale_filter_deps="swscale"
1917 smartblur_filter_deps="gpl swscale"
1918 showspectrum_filter_deps="avcodec"
1919 super2xsai_filter_deps="gpl"
1920 tinterlace_filter_deps="gpl"
1921 yadif_filter_deps="gpl"
1922
1923 # libraries
1924 avdevice_deps="avcodec avformat"
1925 avformat_deps="avcodec"
1926 postproc_deps="gpl"
1927
1928 # programs
1929 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1930 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
1931                setpts_filter null_filter anull_filter ffabuffersink_filter"
1932 ffplay_deps="avcodec avformat swscale swresample sdl"
1933 ffplay_select="ffbuffersink_filter rdft crop_filter"
1934 ffprobe_deps="avcodec avformat"
1935 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1936 ffserver_extralibs='$ldl'
1937
1938 # documentation
1939 podpages_deps="perl"
1940 manpages_deps="perl pod2man"
1941 htmlpages_deps="texi2html"
1942 txtpages_deps="makeinfo"
1943 doc_deps_any="manpages htmlpages podpages txtpages"
1944
1945 # tests
1946 colormatrix1_test_deps="colormatrix_filter"
1947 colormatrix2_test_deps="colormatrix_filter"
1948 flashsv2_test_deps="zlib"
1949 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1950 mpng_test_deps="zlib"
1951 pp_test_deps="mp_filter"
1952 pp2_test_deps="mp_filter"
1953 pp3_test_deps="mp_filter"
1954 pp4_test_deps="mp_filter"
1955 pp5_test_deps="mp_filter"
1956 pp6_test_deps="mp_filter"
1957 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1958 zlib_test_deps="zlib"
1959 zmbv_test_deps="zlib"
1960
1961 test_deps(){
1962     suf1=$1
1963     suf2=$2
1964     shift 2
1965     for v; do
1966         dep=${v%=*}
1967         tests=${v#*=}
1968         for name in ${tests}; do
1969             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1970         done
1971     done
1972 }
1973
1974 test_deps _muxer _demuxer                                               \
1975     aiff                                                                \
1976     pcm_alaw=alaw                                                       \
1977     asf                                                                 \
1978     au                                                                  \
1979     avi                                                                 \
1980     dv=dv_fmt                                                           \
1981     ffm                                                                 \
1982     flv=flv_fmt                                                         \
1983     gxf                                                                 \
1984     matroska=mkv                                                        \
1985     mmf                                                                 \
1986     mov="mov ismv"                                                      \
1987     pcm_mulaw=mulaw                                                     \
1988     mxf="mxf mxf_d10"                                                   \
1989     nut                                                                 \
1990     ogg="ogg ogg_vp3"                                                   \
1991     rawvideo=pixfmt                                                     \
1992     rm                                                                  \
1993     swf                                                                 \
1994     mpegts=ts                                                           \
1995     voc                                                                 \
1996     wav                                                                 \
1997     yuv4mpegpipe=yuv4mpeg                                               \
1998
1999 # default parameters
2000
2001 logfile="config.log"
2002
2003 # installation paths
2004 prefix_default="/usr/local"
2005 bindir_default='${prefix}/bin'
2006 datadir_default='${prefix}/share/ffmpeg'
2007 incdir_default='${prefix}/include'
2008 libdir_default='${prefix}/lib'
2009 mandir_default='${prefix}/share/man'
2010 shlibdir_default="$libdir_default"
2011 postproc_version_default="current"
2012
2013 # toolchain
2014 ar_default="ar"
2015 cc_default="gcc"
2016 cxx_default="g++"
2017 host_cc_default="gcc"
2018 install="install"
2019 ln_s="ln -sf"
2020 nm_default="nm -g"
2021 objformat="elf"
2022 pkg_config_default=pkg-config
2023 ranlib="ranlib"
2024 strip_default="strip"
2025 yasmexe_default="yasm"
2026
2027 nogas=":"
2028
2029 # machine
2030 arch_default=$(uname -m)
2031 cpu="generic"
2032
2033 # OS
2034 target_os_default=$(tolower $(uname -s))
2035 host_os=$target_os_default
2036
2037 # alternative libpostproc version
2038 ALT_PP_VER_MAJOR=51
2039 ALT_PP_VER_MINOR=2
2040 ALT_PP_VER_MICRO=101
2041 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2042
2043 # configurable options
2044 enable $PROGRAM_LIST
2045 enable $DOCUMENT_LIST
2046
2047 enable avcodec
2048 enable avdevice
2049 enable avfilter
2050 enable avformat
2051 enable avutil
2052 enable postproc
2053 enable stripping
2054 enable swresample
2055 enable swscale
2056
2057 enable asm
2058 enable debug
2059 enable doc
2060 enable network
2061 enable optimizations
2062 enable safe_bitstream_reader
2063 enable static
2064 enable swscale_alpha
2065
2066 # build settings
2067 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2068 FFSERVERLDFLAGS=-Wl,-E
2069 LIBPREF="lib"
2070 LIBSUF=".a"
2071 FULLNAME='$(NAME)$(BUILDSUF)'
2072 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2073 SLIBPREF="lib"
2074 SLIBSUF=".so"
2075 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2076 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2077 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2078 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2079 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2080 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2081
2082 asflags_filter=echo
2083 cflags_filter=echo
2084 ldflags_filter=echo
2085
2086 AS_C='-c'
2087 AS_O='-o $@'
2088 CC_C='-c'
2089 CC_E='-E -o $@'
2090 CC_O='-o $@'
2091 CXX_C='-c'
2092 CXX_O='-o $@'
2093 LD_O='-o $@'
2094 LD_LIB='-l%'
2095 LD_PATH='-L'
2096 HOSTCC_C='-c'
2097 HOSTCC_O='-o $@'
2098 HOSTLD_O='-o $@'
2099
2100 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2101 host_libs='-lm'
2102 host_cflags_filter=echo
2103 host_ldflags_filter=echo
2104
2105 target_path='$(CURDIR)'
2106
2107 # since the object filename is not given with the -MM flag, the compiler
2108 # is only able to print the basename, and we must add the path ourselves
2109 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2110 DEPFLAGS='-MM'
2111
2112 # find source path
2113 if test -f configure; then
2114     source_path=.
2115 else
2116     source_path=$(cd $(dirname "$0"); pwd)
2117     echo "$source_path" | grep -q '[[:blank:]]' &&
2118         die "Out of tree builds are impossible with whitespace in source path."
2119     test -e "$source_path/config.h" &&
2120         die "Out of tree builds are impossible with config.h in source dir."
2121 fi
2122
2123 for v in "$@"; do
2124     r=${v#*=}
2125     l=${v%"$r"}
2126     r=$(sh_quote "$r")
2127     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2128 done
2129
2130 find_things(){
2131     thing=$1
2132     pattern=$2
2133     file=$source_path/$3
2134     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2135 }
2136
2137 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2138 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2139 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2140 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2141 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2142 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2143 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2144 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2145 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2146 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2147 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2148
2149 ALL_COMPONENTS="
2150     $BSF_LIST
2151     $DECODER_LIST
2152     $DEMUXER_LIST
2153     $ENCODER_LIST
2154     $FILTER_LIST
2155     $HWACCEL_LIST
2156     $INDEV_LIST
2157     $MUXER_LIST
2158     $OUTDEV_LIST
2159     $PARSER_LIST
2160     $PROTOCOL_LIST
2161 "
2162
2163 find_tests(){
2164     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2165 }
2166
2167 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2168 LAVF_TESTS=$(find_tests lavf)
2169 LAVFI_TESTS=$(find_tests lavfi)
2170 SEEK_TESTS=$(find_tests seek seek_)
2171
2172 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2173
2174 for n in $COMPONENT_LIST; do
2175     v=$(toupper ${n%s})_LIST
2176     eval enable \$$v
2177     eval ${n}_if_any="\$$v"
2178 done
2179
2180 enable $ARCH_EXT_LIST $ALL_TESTS
2181
2182 die_unknown(){
2183     echo "Unknown option \"$1\"."
2184     echo "See $0 --help for available options."
2185     exit 1
2186 }
2187
2188 show_list() {
2189     suffix=_$1
2190     shift
2191     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2192     exit 0
2193 }
2194
2195 rand_list(){
2196     IFS=', '
2197     set -- $*
2198     unset IFS
2199     for thing; do
2200         comp=${thing%:*}
2201         prob=${thing#$comp}
2202         prob=${prob#:}
2203         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2204         echo "prob ${prob:-0.5}"
2205         printf '%s\n' $comp
2206     done
2207 }
2208
2209 do_random(){
2210     action=$1
2211     shift
2212     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2213     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2214 }
2215
2216 for opt do
2217     optval="${opt#*=}"
2218     case "$opt" in
2219     --extra-ldflags=*) add_ldflags $optval
2220     ;;
2221     --extra-libs=*) add_extralibs $optval
2222     ;;
2223     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2224     ;;
2225     --enable-debug=*) debuglevel="$optval"
2226     ;;
2227     --disable-everything)
2228     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2229     ;;
2230     --enable-random|--disable-random)
2231     action=${opt%%-random}
2232     do_random ${action#--} $COMPONENT_LIST
2233     ;;
2234     --enable-random=*|--disable-random=*)
2235     action=${opt%%-random=*}
2236     do_random ${action#--} $optval
2237     ;;
2238     --enable-*=*|--disable-*=*)
2239     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2240     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2241     eval list=\$$(toupper $thing)_LIST
2242     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2243     $action $(filter "$name" $list)
2244     ;;
2245     --enable-?*|--disable-?*)
2246     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2247     if is_in $option $COMPONENT_LIST; then
2248         test $action = disable && action=unset
2249         eval $action \$$(toupper ${option%s})_LIST
2250     elif is_in $option $CMDLINE_SELECT; then
2251         $action $option
2252     else
2253         die_unknown $opt
2254     fi
2255     ;;
2256     --list-*)
2257         NAME="${opt#--list-}"
2258         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2259         NAME=${NAME%s}
2260         eval show_list $NAME \$$(toupper $NAME)_LIST
2261     ;;
2262     --help|-h) show_help
2263     ;;
2264     *)
2265     optname="${opt%%=*}"
2266     optname="${optname#--}"
2267     optname=$(echo "$optname" | sed 's/-/_/g')
2268     if is_in $optname $CMDLINE_SET; then
2269         eval $optname='$optval'
2270     elif is_in $optname $CMDLINE_APPEND; then
2271         append $optname "$optval"
2272     else
2273          die_unknown $opt
2274     fi
2275     ;;
2276     esac
2277 done
2278
2279 disabled logging && logfile=/dev/null
2280
2281 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2282 set >> $logfile
2283
2284 test -n "$cross_prefix" && enable cross_compile
2285
2286 if enabled cross_compile; then
2287     test -n "$arch" && test -n "$target_os" ||
2288         die "Must specify target arch and OS when cross-compiling"
2289 fi
2290
2291 set_default arch target_os postproc_version
2292
2293 # Check if we should build alternative libpostproc version instead of current
2294 if   test "$postproc_version" = $ALT_PP_VER; then
2295   LIBPOSTPROC_VERSION=$ALT_PP_VER
2296   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2297   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2298   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2299 elif test "$postproc_version" != current; then
2300   die "Invalid argument to --postproc-version. See --help output."
2301 fi
2302
2303 ar_default="${cross_prefix}${ar_default}"
2304 cc_default="${cross_prefix}${cc_default}"
2305 cxx_default="${cross_prefix}${cxx_default}"
2306 nm_default="${cross_prefix}${nm_default}"
2307 pkg_config_default="${cross_prefix}${pkg_config_default}"
2308 ranlib="${cross_prefix}${ranlib}"
2309 strip_default="${cross_prefix}${strip_default}"
2310
2311 sysinclude_default="${sysroot}/usr/include"
2312
2313 case "$toolchain" in
2314     msvc)
2315         cc_default="c99wrap cl"
2316         ld_default="c99wrap link"
2317         nm_default="dumpbin -symbols"
2318         ar_default="lib"
2319     ;;
2320     ?*)
2321         die "Unknown toolchain $toolchain"
2322     ;;
2323 esac
2324
2325 set_default cc cxx pkg_config strip sysinclude yasmexe
2326 enabled cross_compile || host_cc_default=$cc
2327 set_default host_cc
2328
2329 if ! $pkg_config --version >/dev/null 2>&1; then
2330     warn "$pkg_config not found, library detection may fail."
2331     pkg_config=false
2332 fi
2333
2334 exesuf() {
2335     case $1 in
2336         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2337     esac
2338 }
2339
2340 EXESUF=$(exesuf $target_os)
2341 HOSTEXESUF=$(exesuf $host_os)
2342
2343 # set temporary file name
2344 : ${TMPDIR:=$TEMPDIR}
2345 : ${TMPDIR:=$TMP}
2346 : ${TMPDIR:=/tmp}
2347
2348 if ! check_cmd mktemp -u XXXXXX; then
2349     # simple replacement for missing mktemp
2350     # NOT SAFE FOR GENERAL USE
2351     mktemp(){
2352         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2353     }
2354 fi
2355
2356 tmpfile(){
2357     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2358         (set -C; exec > $tmp) 2>/dev/null ||
2359         die "Unable to create temporary file in $TMPDIR."
2360     append TMPFILES $tmp
2361     eval $1=$tmp
2362 }
2363
2364 trap 'rm -f -- $TMPFILES' EXIT
2365
2366 tmpfile TMPASM .asm
2367 tmpfile TMPC   .c
2368 tmpfile TMPCPP .cpp
2369 tmpfile TMPE   $EXESUF
2370 tmpfile TMPH   .h
2371 tmpfile TMPO   .o
2372 tmpfile TMPS   .S
2373 tmpfile TMPSH  .sh
2374 tmpfile TMPV   .ver
2375
2376 unset -f mktemp
2377
2378 chmod +x $TMPE
2379
2380 # make sure we can execute files in $TMPDIR
2381 cat > $TMPSH 2>> $logfile <<EOF
2382 #! /bin/sh
2383 EOF
2384 chmod +x $TMPSH >> $logfile 2>&1
2385 if ! $TMPSH >> $logfile 2>&1; then
2386     cat <<EOF
2387 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2388 variable to another directory and make sure that it is not mounted noexec.
2389 EOF
2390     die "Sanity test failed."
2391 fi
2392
2393 msvc_flags(){
2394     for flag; do
2395         case $flag in
2396             -fomit-frame-pointer) echo -Oy ;;
2397             -g)                   echo -Z7 ;;
2398             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2399                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2400                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2401                                        -wd4996 -wd4554 ;;
2402             -std=c99)             ;;
2403             -fno-math-errno)      ;;
2404             -fno-common)          ;;
2405             -fno-signed-zeros)    ;;
2406             -lz)                  echo zlib.lib ;;
2407             -l*)                  echo ${flag#-l}.lib ;;
2408             *)                    echo $flag ;;
2409         esac
2410     done
2411 }
2412
2413 pgi_flags(){
2414     for flag; do
2415         case $flag in
2416             -fomit-frame-pointer) echo -Mnoframe ;;
2417             -g)                   echo -gopt ;;
2418             *)                    echo $flag ;;
2419         esac
2420     done
2421 }
2422
2423 suncc_flags(){
2424     for flag; do
2425         case $flag in
2426             -march=*|-mcpu=*)
2427                 case "${flag#*=}" in
2428                     native)                   echo -xtarget=native       ;;
2429                     v9|niagara)               echo -xarch=sparc          ;;
2430                     ultrasparc)               echo -xarch=sparcvis       ;;
2431                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2432                     i586|pentium)             echo -xchip=pentium        ;;
2433                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2434                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2435                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2436                     pentium4*)          echo -xtarget=pentium4           ;;
2437                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2438                     *-sse3)             echo -xarch=sse3                 ;;
2439                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2440                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2441                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2442                     k8|opteron|athlon64|athlon-fx)
2443                                               echo -xarch=sse2a          ;;
2444                     athlon*)                  echo -xarch=pentium_proa   ;;
2445                 esac
2446                 ;;
2447             -std=c99)             echo -xc99              ;;
2448             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2449             -fPIC)                echo -KPIC -xcode=pic32 ;;
2450             -W*,*)                echo $flag              ;;
2451             -f*-*|-W*)                                    ;;
2452             *)                    echo $flag              ;;
2453         esac
2454     done
2455 }
2456
2457 tms470_flags(){
2458     for flag; do
2459         case $flag in
2460             -march=*|-mcpu=*)
2461                 case "${flag#*=}" in
2462                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2463                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2464                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2465                     armv6*|arm11*)          echo -mv=6   ;;
2466                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2467                                             echo -mv=5e  ;;
2468                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2469                 esac
2470                 ;;
2471             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2472             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2473             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2474             -msoft-float)   echo --float_support=vfplib       ;;
2475             -O[0-3]|-mf=*)  echo $flag                        ;;
2476             -g)             echo -g -mn                       ;;
2477             -pds=*)         echo $flag                        ;;
2478             -D*|-I*)        echo $flag                        ;;
2479             --gcc|--abi=*)  echo $flag                        ;;
2480             -me)            echo $flag                        ;;
2481         esac
2482     done
2483 }
2484
2485 probe_cc(){
2486     pfx=$1
2487     _cc=$2
2488
2489     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2490     unset _ld_o _ldflags _ld_lib _ld_path
2491     unset _depflags _DEPCMD _DEPFLAGS
2492     _flags_filter=echo
2493
2494     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2495         _type=llvm_gcc
2496         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2497         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2498         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2499         _cflags_speed='-O3'
2500         _cflags_size='-Os'
2501     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2502         _type=gcc
2503         gcc_version=$($_cc --version | head -n1)
2504         gcc_basever=$($_cc -dumpversion)
2505         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2506         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2507         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2508         if ! $_cc -dumpversion | grep -q '^2\.'; then
2509             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2510         fi
2511         _cflags_speed='-O3'
2512         _cflags_size='-Os'
2513     elif $_cc --version 2>/dev/null | grep -q Intel; then
2514         _type=icc
2515         _ident=$($_cc --version | head -n1)
2516         _depflags='-MMD'
2517         _cflags_speed='-O3'
2518         _cflags_size='-Os'
2519         _cflags_noopt='-O1'
2520     elif $_cc -v 2>&1 | grep -q xlc; then
2521         _type=xlc
2522         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2523         _cflags_speed='-O5'
2524         _cflags_size='-O5 -qcompact'
2525     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2526         _type=ccc
2527         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2528         _DEPFLAGS='-M'
2529         debuglevel=3
2530         _ldflags='-Wl,-z,now' # calls to libots crash without this
2531         _cflags_speed='-fast'
2532         _cflags_size='-O1'
2533     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2534         test -d "$sysroot" || die "No valid sysroot specified."
2535         _type=armcc
2536         _ident=$($_cc --vsn | head -n1)
2537         armcc_conf="$PWD/armcc.conf"
2538         $_cc --arm_linux_configure                 \
2539              --arm_linux_config_file="$armcc_conf" \
2540              --configure_sysroot="$sysroot"        \
2541              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2542              die "Error creating armcc configuration file."
2543         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2544         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2545         as_default="${cross_prefix}gcc"
2546         _depflags='-MMD'
2547         _cflags_speed='-O3'
2548         _cflags_size='-Os'
2549     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2550         _type=tms470
2551         _ident=$($_cc -version | head -n1 | tr -s ' ')
2552         _flags='--gcc --abi=eabi -me'
2553         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2554         _cc_e='-ppl -fe=$@'
2555         _cc_o='-fe=$@'
2556         as_default="${cross_prefix}gcc"
2557         ld_default="${cross_prefix}gcc"
2558         _depflags='-ppa -ppd=$(@:.o=.d)'
2559         _cflags_speed='-O3 -mf=5'
2560         _cflags_size='-O3 -mf=2'
2561         _flags_filter=tms470_flags
2562     elif $_cc -v 2>&1 | grep -q clang; then
2563         _type=clang
2564         _ident=$($_cc --version | head -n1)
2565         _depflags='-MMD'
2566         _cflags_speed='-O3'
2567         _cflags_size='-Os'
2568     elif $_cc -V 2>&1 | grep -q Sun; then
2569         _type=suncc
2570         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2571         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2572         _DEPFLAGS='-xM1 -xc99'
2573         _ldflags='-std=c99'
2574         _cflags_speed='-O5'
2575         _cflags_size='-O5 -xspace'
2576         _flags_filter=suncc_flags
2577     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2578         _type=pathscale
2579         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2580         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2581         _cflags_speed='-O2'
2582         _cflags_size='-Os'
2583         _flags_filter='filter_out -Wdisabled-optimization'
2584     elif $_cc -v 2>&1 | grep -q Open64; then
2585         _type=open64
2586         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2587         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2588         _cflags_speed='-O2'
2589         _cflags_size='-Os'
2590         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2591     elif $_cc -V 2>&1 | grep -q Portland; then
2592         _type=pgi
2593         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2594         opt_common='-alias=ansi -Mlre -Mpre'
2595         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2596         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2597         _cflags_noopt="-O1"
2598         _flags_filter=pgi_flags
2599     elif $_cc 2>&1 | grep -q Microsoft; then
2600         _type=msvc
2601         _ident=$($cc 2>&1 | head -n1)
2602         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2603         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2604         _cflags_speed="-O2"
2605         _cflags_size="-O1"
2606         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2607         if $_cc 2>&1 | grep -q Linker; then
2608             _ld_o='-out $@'
2609         else
2610             _ld_o='-Fe$@'
2611         fi
2612         _cc_o='-Fo $@'
2613         _cc_e='-P -Fi $@'
2614         _flags_filter=msvc_flags
2615         _ld_lib='lib%.a'
2616         _ld_path='-libpath:'
2617         _flags='-nologo'
2618         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2619         if [ $pfx = hostcc ]; then
2620             append _cflags -Dsnprintf=_snprintf
2621         fi
2622         disable stripping
2623     fi
2624
2625     eval ${pfx}_type=\$_type
2626     eval ${pfx}_ident=\$_ident
2627 }
2628
2629 set_ccvars(){
2630     eval ${1}_C=\${_cc_c-\${${1}_C}}
2631     eval ${1}_E=\${_cc_e-\${${1}_E}}
2632     eval ${1}_O=\${_cc_o-\${${1}_O}}
2633
2634     if [ -n "$_depflags" ]; then
2635         eval ${1}_DEPFLAGS=\$_depflags
2636     else
2637         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2638         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2639         eval DEP${1}FLAGS=\$_flags
2640     fi
2641 }
2642
2643 probe_cc cc "$cc"
2644 cflags_filter=$_flags_filter
2645 cflags_speed=$_cflags_speed
2646 cflags_size=$_cflags_size
2647 cflags_noopt=$_cflags_noopt
2648 add_cflags $_flags $_cflags
2649 cc_ldflags=$_ldflags
2650 set_ccvars CC
2651
2652 probe_cc hostcc "$host_cc"
2653 host_cflags_filter=$_flags_filter
2654 add_host_cflags  $_flags $_cflags
2655 set_ccvars HOSTCC
2656
2657 test -n "$cc_type" && enable $cc_type ||
2658     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2659
2660 : ${as_default:=$cc}
2661 : ${dep_cc_default:=$cc}
2662 : ${ld_default:=$cc}
2663 : ${host_ld_default:=$host_cc}
2664 set_default ar as dep_cc ld host_ld
2665
2666 probe_cc as "$as"
2667 asflags_filter=$_flags_filter
2668 add_asflags $_flags $_cflags
2669 set_ccvars AS
2670
2671 probe_cc ld "$ld"
2672 ldflags_filter=$_flags_filter
2673 add_ldflags $_flags $_ldflags
2674 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2675 LD_O=${_ld_o-$LD_O}
2676 LD_LIB=${_ld_lib-$LD_LIB}
2677 LD_PATH=${_ld_path-$LD_PATH}
2678
2679 probe_cc hostld "$host_ld"
2680 host_ldflags_filter=$_flags_filter
2681 add_host_ldflags $_flags $_ldflags
2682 HOSTLD_O=${_ld_o-$HOSTLD_O}
2683
2684 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2685     probe_cc depcc "$dep_cc"
2686     CCDEP=${_DEPCMD:-$DEPCMD}
2687     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2688     DEPCCFLAGS=$_flags
2689 fi
2690
2691 if $ar 2>&1 | grep -q Microsoft; then
2692     arflags="-nologo"
2693     ar_o='-out:$@'
2694 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2695     arflags="rq"
2696     ar_o='$@'
2697 else
2698     arflags="rc"
2699     ar_o='$@'
2700 fi
2701
2702 add_cflags $extra_cflags
2703 add_cxxflags $extra_cxxflags
2704 add_asflags $extra_cflags
2705
2706 if test -n "$sysroot"; then
2707     case "$cc_type" in
2708         gcc|llvm_gcc|clang)
2709             add_cppflags --sysroot="$sysroot"
2710             add_ldflags --sysroot="$sysroot"
2711         ;;
2712         tms470)
2713             add_cppflags -I"$sysinclude"
2714             add_ldflags  --sysroot="$sysroot"
2715         ;;
2716     esac
2717 fi
2718
2719 if test "$cpu" = host; then
2720     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2721
2722     case "$cc_type" in
2723         gcc|llvm_gcc)
2724             check_native(){
2725                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2726                 sed -n "/cc1.*$1=/{
2727                             s/.*$1=\\([^ ]*\\).*/\\1/
2728                             p
2729                             q
2730                         }" $TMPE
2731             }
2732             cpu=$(check_native -march || check_native -mcpu)
2733         ;;
2734     esac
2735
2736     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2737 fi
2738
2739 # Deal with common $arch aliases
2740 case "$arch" in
2741     arm*|iPad*)
2742         arch="arm"
2743     ;;
2744     mips|mipsel|IP*)
2745         arch="mips"
2746     ;;
2747     mips64*)
2748         arch="mips"
2749         subarch="mips64"
2750     ;;
2751     parisc|hppa)
2752         arch="parisc"
2753     ;;
2754     parisc64|hppa64)
2755         arch="parisc"
2756         subarch="parisc64"
2757     ;;
2758     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2759         arch="ppc"
2760     ;;
2761     s390|s390x)
2762         arch="s390"
2763     ;;
2764     sh4|sh)
2765         arch="sh4"
2766     ;;
2767     sun4u|sparc64)
2768         arch="sparc"
2769         subarch="sparc64"
2770     ;;
2771     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2772         arch="x86"
2773     ;;
2774 esac
2775
2776 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2777 enable $arch
2778
2779 # Add processor-specific flags
2780 if test "$cpu" = generic; then
2781     : do nothing
2782 elif enabled ppc; then
2783
2784     case $(tolower $cpu) in
2785         601|ppc601|powerpc601)
2786             cpuflags="-mcpu=601"
2787             disable altivec
2788         ;;
2789         603*|ppc603*|powerpc603*)
2790             cpuflags="-mcpu=603"
2791             disable altivec
2792         ;;
2793         604*|ppc604*|powerpc604*)
2794             cpuflags="-mcpu=604"
2795             disable altivec
2796         ;;
2797         g3|75*|ppc75*|powerpc75*)
2798             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2799             disable altivec
2800         ;;
2801         g4|745*|ppc745*|powerpc745*)
2802             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2803         ;;
2804         74*|ppc74*|powerpc74*)
2805             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2806         ;;
2807         g5|970|ppc970|powerpc970)
2808             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2809         ;;
2810         power[3-7]*)
2811             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2812         ;;
2813         cell)
2814             cpuflags="-mcpu=cell"
2815             enable ldbrx
2816         ;;
2817         e500mc)
2818             cpuflags="-mcpu=e500mc"
2819             disable altivec
2820         ;;
2821         e500v2)
2822             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2823             disable altivec
2824         ;;
2825         e500)
2826             cpuflags="-mcpu=8540 -mhard-float"
2827             disable altivec
2828         ;;
2829     esac
2830
2831 elif enabled x86; then
2832
2833     case $cpu in
2834         i[345]86|pentium)
2835             cpuflags="-march=$cpu"
2836             disable mmx
2837         ;;
2838         # targets that do NOT support conditional mov (cmov)
2839         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2840             cpuflags="-march=$cpu"
2841             disable cmov
2842         ;;
2843         # targets that do support conditional mov (cmov)
2844         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2845             cpuflags="-march=$cpu"
2846             enable cmov
2847             enable fast_cmov
2848         ;;
2849         # targets that do support conditional mov but on which it's slow
2850         pentium4|pentium4m|prescott|nocona)
2851             cpuflags="-march=$cpu"
2852             enable cmov
2853             disable fast_cmov
2854         ;;
2855     esac
2856
2857 elif enabled sparc; then
2858
2859     case $cpu in
2860         niagara)
2861             cpuflags="-mcpu=$cpu"
2862             disable vis
2863         ;;
2864         sparc64)
2865             cpuflags="-mcpu=v9"
2866         ;;
2867     esac
2868
2869 elif enabled arm; then
2870
2871     case $cpu in
2872         armv*)
2873             cpuflags="-march=$cpu"
2874             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2875         ;;
2876         *)
2877             cpuflags="-mcpu=$cpu"
2878             case $cpu in
2879                 cortex-a*)                               subarch=armv7a  ;;
2880                 cortex-r*)                               subarch=armv7r  ;;
2881                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2882                 arm11*)                                  subarch=armv6   ;;
2883                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2884                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2885             esac
2886         ;;
2887     esac
2888
2889 elif enabled alpha; then
2890
2891     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2892
2893 elif enabled bfin; then
2894
2895     cpuflags="-mcpu=$cpu"
2896
2897 elif enabled mips; then
2898
2899     cpuflags="-march=$cpu"
2900
2901     case $cpu in
2902         24kc)
2903             disable mipsfpu
2904             disable mipsdspr1
2905             disable mipsdspr2
2906         ;;
2907         24kf*)
2908             disable mipsdspr1
2909             disable mipsdspr2
2910         ;;
2911         24kec|34kc|1004kc)
2912             disable mipsfpu
2913             disable mipsdspr2
2914         ;;
2915         24kef*|34kf*|1004kf*)
2916             disable mipsdspr2
2917         ;;
2918         74kc)
2919             disable mipsfpu
2920         ;;
2921     esac
2922
2923 elif enabled avr32; then
2924
2925     case $cpu in
2926         ap7[02]0[0-2])
2927             subarch="avr32_ap"
2928             cpuflags="-mpart=$cpu"
2929         ;;
2930         ap)
2931             subarch="avr32_ap"
2932             cpuflags="-march=$cpu"
2933         ;;
2934         uc3[ab]*)
2935             subarch="avr32_uc"
2936             cpuflags="-mcpu=$cpu"
2937         ;;
2938         uc)
2939             subarch="avr32_uc"
2940             cpuflags="-march=$cpu"
2941         ;;
2942     esac
2943
2944 fi
2945
2946 add_cflags $cpuflags
2947 add_asflags $cpuflags
2948
2949 # compiler sanity check
2950 check_exec <<EOF
2951 int main(void){ return 0; }
2952 EOF
2953 if test "$?" != 0; then
2954     echo "$cc is unable to create an executable file."
2955     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2956         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2957         echo "Only do this if you know what cross compiling means."
2958     fi
2959     die "C compiler test failed."
2960 fi
2961
2962 add_cppflags -D_ISOC99_SOURCE
2963 add_cxxflags -D__STDC_CONSTANT_MACROS
2964 check_cflags -std=c99
2965 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2966 #include <stdlib.h>
2967 EOF
2968 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2969 #include <stdlib.h>
2970 EOF
2971
2972 check_host_cflags -std=c99
2973 check_host_cflags -Wall
2974
2975 case "$arch" in
2976     alpha|ia64|mips|parisc|sparc)
2977         spic=$shared
2978     ;;
2979     x86)
2980         subarch="x86_32"
2981         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2982         if test "$subarch" = "x86_64"; then
2983             spic=$shared
2984         fi
2985     ;;
2986     ppc)
2987         check_cc <<EOF && subarch="ppc64"
2988         int test[(int)sizeof(char*) - 7];
2989 EOF
2990     ;;
2991 esac
2992
2993 enable $subarch
2994 enabled spic && enable pic
2995
2996 # OS specific
2997 case $target_os in
2998     haiku)
2999         prefix_default="/boot/common"
3000         network_extralibs="-lnetwork"
3001         host_libs=
3002         ;;
3003     sunos)
3004         FFSERVERLDFLAGS=""
3005         SHFLAGS='-shared -Wl,-h,$$(@F)'
3006         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3007         network_extralibs="-lsocket -lnsl"
3008         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3009         # When using suncc to build, the Solaris linker will mark
3010         # an executable with each instruction set encountered by
3011         # the Solaris assembler.  As our libraries contain their own
3012         # guards for processor-specific code, instead suppress
3013         # generation of the HWCAPS ELF section on Solaris x86 only.
3014         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3015         nm_default='nm -P -g'
3016         ;;
3017     netbsd)
3018         disable symver
3019         oss_indev_extralibs="-lossaudio"
3020         oss_outdev_extralibs="-lossaudio"
3021         enabled gcc || check_ldflags -Wl,-zmuldefs
3022         ;;
3023     openbsd|bitrig)
3024         # On OpenBSD 4.5. the compiler does not use PIC unless
3025         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3026         # however the generated executable will not do anything
3027         # (simply quits with exit-code 1, no crash, no output).
3028         # Thus explicitly enable PIC here.
3029         enable pic
3030         disable symver
3031         SHFLAGS='-shared'
3032         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3033         SLIB_INSTALL_LINKS=
3034         oss_indev_extralibs="-lossaudio"
3035         oss_outdev_extralibs="-lossaudio"
3036         ;;
3037     dragonfly)
3038         disable symver
3039         ;;
3040     freebsd)
3041         ;;
3042     bsd/os)
3043         add_extralibs -lpoll -lgnugetopt
3044         strip="strip -d"
3045         ;;
3046     darwin)
3047         gas="gas-preprocessor.pl $cc"
3048         enabled ppc && add_asflags -force_cpusubtype_ALL
3049         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3050         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3051         strip="${strip} -x"
3052         add_ldflags -Wl,-dynamic,-search_paths_first
3053         SLIBSUF=".dylib"
3054         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3055         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3056         FFSERVERLDFLAGS=-Wl,-bind_at_load
3057         objformat="macho"
3058         enabled x86_64 && objformat="macho64"
3059         enabled_any pic shared ||
3060             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3061         ;;
3062     mingw32*)
3063         if test $target_os = "mingw32ce"; then
3064             disable network
3065         else
3066             target_os=mingw32
3067         fi
3068         LIBTARGET=i386
3069         if enabled x86_64; then
3070             LIBTARGET="i386:x86-64"
3071         elif enabled arm; then
3072             LIBTARGET=arm-wince
3073         fi
3074         shlibdir_default="$bindir_default"
3075         SLIBPREF=""
3076         SLIBSUF=".dll"
3077         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3078         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3079         dlltool="${cross_prefix}dlltool"
3080         if check_cmd lib.exe -list; then
3081             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3082             if enabled x86_64; then
3083                 LIBTARGET=x64
3084             fi
3085         elif check_cmd $dlltool --version; then
3086             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3087         fi
3088         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3089         SLIB_INSTALL_LINKS=
3090         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3091         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3092         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3093         objformat="win32"
3094         ranlib=:
3095         enable dos_paths
3096         check_cflags -fno-common
3097         add_cppflags -U__STRICT_ANSI__
3098         ;;
3099     cygwin*)
3100         target_os=cygwin
3101         shlibdir_default="$bindir_default"
3102         SLIBPREF="cyg"
3103         SLIBSUF=".dll"
3104         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3105         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3106         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3107         SLIB_INSTALL_LINKS=
3108         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3109         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3110         objformat="win32"
3111         enable dos_paths
3112         check_cflags -fno-common
3113         add_cppflags -U__STRICT_ANSI__
3114         ;;
3115     *-dos|freedos|opendos)
3116         network_extralibs="-lsocket"
3117         objformat="coff"
3118         enable dos_paths
3119         add_cppflags -U__STRICT_ANSI__
3120         ;;
3121     linux)
3122         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3123         enable dv1394
3124         ;;
3125     irix*)
3126         target_os=irix
3127         ranlib="echo ignoring ranlib"
3128         ;;
3129     os/2*)
3130         strip="lxlite -CS"
3131         ln_s="cp -f"
3132         objformat="aout"
3133         add_cppflags -D_GNU_SOURCE
3134         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3135         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3136         FFSERVERLDFLAGS=""
3137         LIBSUF="_s.a"
3138         SLIBPREF=""
3139         SLIBSUF=".dll"
3140         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3141         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3142         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3143             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3144             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3145             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3146             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3147             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3148         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3149             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3150         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3151         enable dos_paths
3152         enable_weak os2threads
3153         ;;
3154     gnu/kfreebsd)
3155         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3156         ;;
3157     gnu)
3158         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3159         ;;
3160     qnx)
3161         add_cppflags -D_QNX_SOURCE
3162         network_extralibs="-lsocket"
3163         ;;
3164     symbian)
3165         SLIBSUF=".dll"
3166         enable dos_paths
3167         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3168         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3169         add_ldflags -Wl,--target1-abs,--no-undefined \
3170                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3171                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3172         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3173                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3174                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3175         ;;
3176     none)
3177         ;;
3178     *)
3179         die "Unknown OS '$target_os'."
3180         ;;
3181 esac
3182
3183 # determine libc flavour
3184
3185 if check_cpp_condition features.h "defined __UCLIBC__"; then
3186     libc_type=uclibc
3187 elif check_cpp_condition features.h "defined __GLIBC__"; then
3188     libc_type=glibc
3189 elif check_header _mingw.h; then
3190     libc_type=mingw
3191     check_cpp_condition _mingw.h \
3192         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3193             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3194         die "ERROR: MinGW runtime version must be >= 3.15."
3195 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3196     libc_type=newlib
3197 elif check_func_headers stdlib.h _get_doserrno; then
3198     libc_type=msvcrt
3199     add_cflags -Dstrtod=avpriv_strtod
3200     add_cflags -Dsnprintf=avpriv_snprintf   \
3201                -D_snprintf=avpriv_snprintf  \
3202                -Dvsnprintf=avpriv_vsnprintf
3203 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3204     libc_type=klibc
3205 fi
3206
3207 test -n "$libc_type" && enable $libc_type
3208
3209 esc(){
3210     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3211 }
3212
3213 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3214
3215 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3216
3217 set_default $PATHS_LIST
3218 set_default nm
3219
3220 # we need to build at least one lib type
3221 if ! enabled_any static shared; then
3222     cat <<EOF
3223 At least one library type must be built.
3224 Specify --enable-static to build the static libraries or --enable-shared to
3225 build the shared libraries as well. To only build the shared libraries specify
3226 --disable-static in addition to --enable-shared.
3227 EOF
3228     exit 1;
3229 fi
3230
3231 die_license_disabled() {
3232     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3233 }
3234
3235 die_license_disabled_gpl() {
3236     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3237 }
3238
3239 die_license_disabled gpl libcdio
3240 die_license_disabled gpl libutvideo
3241 die_license_disabled gpl libx264
3242 die_license_disabled gpl libxavs
3243 die_license_disabled gpl libxvid
3244 die_license_disabled gpl x11grab
3245
3246 die_license_disabled nonfree libaacplus
3247 die_license_disabled nonfree libfaac
3248 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3249 enabled gpl && die_license_disabled_gpl nonfree openssl
3250
3251 die_license_disabled version3 libopencore_amrnb
3252 die_license_disabled version3 libopencore_amrwb
3253 die_license_disabled version3 libvo_aacenc
3254 die_license_disabled version3 libvo_amrwbenc
3255
3256 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3257
3258 disabled optimizations || check_cflags -fomit-frame-pointer
3259
3260 enable_pic() {
3261     enable pic
3262     add_cppflags -DPIC
3263     add_cflags   -fPIC
3264     add_asflags  -fPIC
3265 }
3266
3267 enabled pic && enable_pic
3268
3269 check_cc <<EOF || die "Symbol mangling check failed."
3270 int ff_extern;
3271 EOF
3272 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3273 extern_prefix=${sym%%ff_extern*}
3274
3275 check_cc <<EOF && enable_weak inline_asm
3276 void foo(void) { __asm__ volatile ("" ::); }
3277 EOF
3278
3279 _restrict=
3280 for restrict_keyword in restrict __restrict__ __restrict; do
3281     check_cc <<EOF && _restrict=$restrict_keyword && break
3282 void foo(char * $restrict_keyword p);
3283 EOF
3284 done
3285
3286 check_cc <<EOF && enable attribute_packed
3287 struct { int x; } __attribute__((packed)) x;
3288 EOF
3289
3290 check_cc <<EOF && enable attribute_may_alias
3291 union { int x; } __attribute__((may_alias)) x;
3292 EOF
3293
3294 check_cc <<EOF || die "endian test failed"
3295 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3296 EOF
3297 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3298
3299 if enabled alpha; then
3300
3301     check_cflags -mieee
3302
3303 elif enabled arm; then
3304
3305     enabled thumb && check_cflags -mthumb || check_cflags -marm
3306     nogas=die
3307
3308     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3309         enable vfp_args
3310     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3311         case "${cross_prefix:-$cc}" in
3312             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3313             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3314 __asm__ (".eabi_attribute 28, 1");
3315 int main(void) { return 0; }
3316 EOF
3317         esac
3318         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3319     fi
3320
3321     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3322     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3323     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3324     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3325     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3326     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3327
3328     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3329     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3330
3331     enabled_all armv6t2 shared !pic && enable_pic
3332
3333 elif enabled mips; then
3334
3335     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3336     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3337     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3338      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3339     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3340      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3341     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3342      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3343     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3344      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3345
3346 elif enabled ppc; then
3347
3348     enable local_aligned_8 local_aligned_16
3349
3350     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3351     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3352     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3353     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3354
3355     # AltiVec flags: The FSF version of GCC differs from the Apple version
3356     if enabled altivec; then
3357         nogas=warn
3358         check_cflags -maltivec -mabi=altivec &&
3359         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3360         check_cflags -faltivec
3361
3362         # check if our compiler supports Motorola AltiVec C API
3363         check_cc <<EOF || disable altivec
3364 $inc_altivec_h
3365 int main(void) {
3366     vector signed int v1 = (vector signed int) { 0 };
3367     vector signed int v2 = (vector signed int) { 1 };
3368     v1 = vec_add(v1, v2);
3369     return 0;
3370 }
3371 EOF
3372
3373         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3374     fi
3375
3376 elif enabled sparc; then
3377
3378     enabled vis &&
3379         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3380             add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3381
3382 elif enabled x86; then
3383
3384     check_code ld immintrin.h "return __xgetbv(0)" "cc" && enable xgetbv
3385     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3386     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3387     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3388
3389     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3390
3391     enable local_aligned_8 local_aligned_16
3392
3393     # check whether EBP is available on x86
3394     # As 'i' is stored on the stack, this program will crash
3395     # if the base pointer is used to access it because the
3396     # base pointer is cleared in the inline assembly code.
3397     check_exec_crash <<EOF && enable ebp_available
3398 volatile int i=0;
3399 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3400 return i;
3401 EOF
3402
3403     # check whether EBX is available on x86
3404     check_inline_asm ebx_available '""::"b"(0)' &&
3405         check_inline_asm ebx_available '"":::"%ebx"'
3406
3407     # check whether xmm clobbers are supported
3408     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3409
3410     # check whether binutils is new enough to compile SSSE3/MMXEXT
3411     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3412     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3413
3414     if ! disabled_any asm mmx yasm; then
3415         if check_cmd $yasmexe --version; then
3416             enabled x86_64 && yasm_extra="-m amd64"
3417             yasm_debug="-g dwarf2"
3418         elif check_cmd nasm -v; then
3419             yasmexe=nasm
3420             yasm_debug="-g -F dwarf"
3421             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3422         fi
3423
3424         YASMFLAGS="-f $objformat $yasm_extra"
3425         enabled pic               && append YASMFLAGS "-DPIC"
3426         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3427         case "$objformat" in
3428             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3429         esac
3430
3431         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3432             die "yasm not found, use --disable-yasm for a crippled build"
3433         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3434         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3435         check_yasm "CPU amdnop" && enable cpunop
3436     fi
3437
3438     case "$cpu" in
3439         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3440             disable fast_clz
3441         ;;
3442     esac
3443
3444 fi
3445
3446 if enabled asm; then
3447     as=${gas:=$as}
3448     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3449         $nogas "GNU assembler not found, install gas-preprocessor"
3450 fi
3451
3452 check_ldflags -Wl,--as-needed
3453
3454 if check_func dlopen; then
3455     ldl=
3456 elif check_func dlopen -ldl; then
3457     ldl=-ldl
3458 fi
3459
3460 if enabled network; then
3461     check_type "sys/types.h sys/socket.h" socklen_t
3462     check_type netdb.h "struct addrinfo"
3463     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3464     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3465     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3466     check_type netinet/in.h "struct sockaddr_in6"
3467     check_type poll.h "struct pollfd"
3468     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3469     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3470     check_type netinet/sctp.h "struct sctp_event_subscribe"
3471     check_func getaddrinfo $network_extralibs
3472     # Prefer arpa/inet.h over winsock2
3473     if check_header arpa/inet.h ; then
3474         check_func closesocket
3475     elif check_header winsock2.h ; then
3476         check_func_headers winsock2.h closesocket -lws2 &&
3477             network_extralibs="-lws2" ||
3478         { check_func_headers winsock2.h closesocket -lws2_32 &&
3479             network_extralibs="-lws2_32"; }
3480         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3481         check_type ws2tcpip.h socklen_t
3482         check_type ws2tcpip.h "struct addrinfo"
3483         check_type ws2tcpip.h "struct group_source_req"
3484         check_type ws2tcpip.h "struct ip_mreq_source"
3485         check_type ws2tcpip.h "struct ipv6_mreq"
3486         check_type winsock2.h "struct pollfd"
3487         check_type ws2tcpip.h "struct sockaddr_in6"
3488         check_type ws2tcpip.h "struct sockaddr_storage"
3489         check_struct winsock2.h "struct sockaddr" sa_len
3490     else
3491         disable network
3492     fi
3493 fi
3494
3495 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3496 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3497
3498 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3499 check_func  fcntl
3500 check_func  fork
3501 check_func  gethrtime
3502 check_func  getopt
3503 check_func  getrusage
3504 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3505 check_func  gettimeofday
3506 check_func  inet_aton $network_extralibs
3507 check_func  isatty
3508 check_func  localtime_r
3509 check_func  ${malloc_prefix}memalign            && enable memalign
3510 check_func  mkstemp
3511 check_func  mmap
3512 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3513 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3514 check_func  setrlimit
3515 check_func  strerror_r
3516 check_func  sched_getaffinity
3517 check_func  sysconf
3518 check_func  sysctl
3519 check_func  usleep
3520 check_func_headers conio.h kbhit
3521 check_func_headers windows.h PeekNamedPipe
3522 check_func_headers io.h setmode
3523 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3524 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3525 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3526 check_func_headers windows.h GetProcessAffinityMask
3527 check_func_headers windows.h GetProcessTimes
3528 check_func_headers windows.h GetSystemTimeAsFileTime
3529 check_func_headers windows.h MapViewOfFile
3530 check_func_headers windows.h Sleep
3531 check_func_headers windows.h VirtualAlloc
3532 check_func_headers glob.h glob
3533
3534 check_header direct.h
3535 check_header dlfcn.h
3536 check_header dxva.h
3537 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3538 check_header io.h
3539 check_header libcrystalhd/libcrystalhd_if.h
3540 check_header malloc.h
3541 check_header poll.h
3542 check_header sys/mman.h
3543 check_header sys/param.h
3544 check_header sys/resource.h
3545 check_header sys/select.h
3546 check_header sys/time.h
3547 check_header termios.h
3548 check_header unistd.h
3549 check_header vdpau/vdpau.h
3550 check_header vdpau/vdpau_x11.h
3551 check_header windows.h
3552 check_header X11/extensions/XvMClib.h
3553 check_header asm/types.h
3554
3555 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3556 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3557
3558 # check for VDA header
3559 if ! disabled vda; then
3560     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3561         enable vda
3562         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3563     fi
3564 fi
3565
3566 if ! disabled w32threads && ! enabled pthreads; then
3567     check_func _beginthreadex && enable w32threads
3568 fi
3569
3570 # check for some common methods of building with pthread support
3571 # do this before the optional library checks as some of them require pthreads
3572 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3573     enable pthreads
3574     if check_func pthread_create; then
3575         :
3576     elif check_func pthread_create -pthread; then
3577         add_cflags -pthread
3578         add_extralibs -pthread
3579     elif check_func pthread_create -pthreads; then
3580         add_cflags -pthreads
3581         add_extralibs -pthreads
3582     elif check_func pthread_create -lpthreadGC2; then
3583         add_extralibs -lpthreadGC2
3584     elif ! check_lib pthread.h pthread_create -lpthread; then
3585         disable pthreads
3586     fi
3587 fi
3588
3589 for thread in $THREADS_LIST; do
3590     if enabled $thread; then
3591         test -n "$thread_type" &&
3592             die "ERROR: Only one thread type must be selected." ||
3593             thread_type="$thread"
3594     fi
3595 done
3596
3597 if enabled pthreads; then
3598   check_func pthread_cancel
3599 fi
3600
3601 check_lib math.h sin -lm && LIBM="-lm"
3602 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3603 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3604
3605 check_mathfunc cbrtf
3606 check_mathfunc exp2
3607 check_mathfunc exp2f
3608 check_mathfunc isinf
3609 check_mathfunc isnan
3610 check_mathfunc llrint
3611 check_mathfunc llrintf
3612 check_mathfunc log2
3613 check_mathfunc log2f
3614 check_mathfunc lrint
3615 check_mathfunc lrintf
3616 check_mathfunc rint
3617 check_mathfunc round
3618 check_mathfunc roundf
3619 check_mathfunc trunc
3620 check_mathfunc truncf
3621
3622 # these are off by default, so fail if requested and not available
3623 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3624 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3625 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3626 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3627 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3628 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3629 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3630 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3631 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3632                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3633                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3634 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3635 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3636 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3637 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"
3638 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3639 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3640 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3641 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3642 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3643 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3644 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3645 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3646 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3647 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3648 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3649 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3650 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3651 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3652 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3653 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3654 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3655     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3656     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3657 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3658 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3659                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3660                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3661 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3662 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3663 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3664 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3665 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3666 enabled libvpx     && {
3667     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3668                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3669     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3670                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3671 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3672                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3673                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3674 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3675 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3676 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3677                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3678                         die "ERROR: openal not found"; } &&
3679                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3680                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3681 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3682                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3683                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3684                         die "ERROR: openssl not found"; }
3685
3686 if enabled gnutls; then
3687     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3688     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3689 fi
3690
3691 # libdc1394 check
3692 if enabled libdc1394; then
3693     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3694         enable libdc1394_2; } ||
3695     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3696         enable libdc1394_1; } ||
3697     die "ERROR: No version of libdc1394 found "
3698 fi
3699
3700 SDL_CONFIG="${cross_prefix}sdl-config"
3701 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3702     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3703     enable sdl &&
3704     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3705 else
3706   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3707     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3708     sdl_libs=$("${SDL_CONFIG}" --libs)
3709     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3710     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3711     enable sdl &&
3712     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3713   fi
3714 fi
3715 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3716
3717 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3718 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3719 perl --version > /dev/null 2>&1 && enable perl || disable perl
3720 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3721
3722 check_header linux/fb.h
3723 check_header linux/videodev.h
3724 check_header linux/videodev2.h
3725 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3726
3727 check_header sys/videoio.h
3728
3729 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3730 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3731 # w32api 3.12 had it defined wrong
3732 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3733
3734 check_type "dshow.h" IBaseFilter
3735
3736 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3737 { check_header dev/bktr/ioctl_meteor.h &&
3738   check_header dev/bktr/ioctl_bt848.h; } ||
3739 { check_header machine/ioctl_meteor.h &&
3740   check_header machine/ioctl_bt848.h; } ||
3741 { check_header dev/video/meteor/ioctl_meteor.h &&
3742   check_header dev/video/bktr/ioctl_bt848.h; } ||
3743 check_header dev/ic/bt8xx.h
3744
3745 check_header sndio.h
3746 if check_struct sys/soundcard.h audio_buf_info bytes; then
3747     enable_safe sys/soundcard.h
3748 else
3749     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3750     #include <sys/soundcard.h>
3751     audio_buf_info abc;
3752 EOF
3753 fi
3754 check_header soundcard.h
3755
3756 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3757
3758 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3759     check_func jack_port_get_latency_range -ljack
3760
3761 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3762
3763 enabled libcdio &&
3764     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3765
3766 enabled x11grab                                           &&
3767 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3768 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3769 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3770
3771 if ! disabled vaapi; then
3772     check_lib va/va.h vaInitialize -lva && {
3773         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3774         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3775     } || disable vaapi
3776 fi
3777
3778 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3779     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3780         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3781 fi
3782
3783 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3784 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3785 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"
3786
3787 # add some useful compiler flags if supported
3788 check_cflags -Wdeclaration-after-statement
3789 check_cflags -Wall
3790 check_cflags -Wno-parentheses
3791 check_cflags -Wno-switch
3792 check_cflags -Wno-format-zero-length
3793 check_cflags -Wdisabled-optimization
3794 check_cflags -Wpointer-arith
3795 check_cflags -Wredundant-decls
3796 check_cflags -Wno-pointer-sign
3797 check_cflags -Wwrite-strings
3798 check_cflags -Wtype-limits
3799 check_cflags -Wundef
3800 check_cflags -Wmissing-prototypes
3801 check_cflags -Wno-pointer-to-int-cast
3802 check_cflags -Wstrict-prototypes
3803 enabled extra_warnings && check_cflags -Winline
3804
3805 # add some linker flags
3806 check_ldflags -Wl,--warn-common
3807 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3808 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3809
3810 enabled xmm_clobber_test &&
3811     check_ldflags -Wl,--wrap,avcodec_open2              \
3812                   -Wl,--wrap,avcodec_decode_audio4      \
3813                   -Wl,--wrap,avcodec_decode_video2      \
3814                   -Wl,--wrap,avcodec_decode_subtitle2   \
3815                   -Wl,--wrap,avcodec_encode_audio2      \
3816                   -Wl,--wrap,avcodec_encode_video       \
3817                   -Wl,--wrap,avcodec_encode_subtitle    \
3818                   -Wl,--wrap,sws_scale ||
3819     disable xmm_clobber_test
3820
3821 echo "X{};" > $TMPV
3822 if test_ldflags -Wl,--version-script,$TMPV; then
3823     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3824     check_cc <<EOF && enable symver_asm_label
3825 void ff_foo(void) __asm__ ("av_foo@VERSION");
3826 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3827 EOF
3828     check_cc <<EOF && enable symver_gnu_asm
3829 __asm__(".symver ff_foo,av_foo@VERSION");
3830 void ff_foo(void) {}
3831 EOF
3832 fi
3833
3834 if [ -n "$optflags" ]; then
3835     add_cflags $optflags
3836 elif enabled small; then
3837     add_cflags $cflags_size
3838 elif enabled optimizations; then
3839     add_cflags $cflags_speed
3840 else
3841     add_cflags $cflags_noopt
3842 fi
3843 check_cflags -fno-math-errno
3844 check_cflags -fno-signed-zeros
3845 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3846 int x;
3847 EOF
3848
3849
3850 if enabled icc; then
3851     # Just warnings, no remarks
3852     check_cflags -w1
3853     # -wd: Disable following warnings
3854     # 144, 167, 556: -Wno-pointer-sign
3855     # 1292: attribute "foo" ignored
3856     # 1419: external declaration in primary source file
3857     # 10006: ignoring unknown option -fno-signed-zeros
3858     # 10148: ignoring unknown option -Wno-parentheses
3859     # 10156: ignoring option '-W'; no argument required
3860     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3861     # 11030: Warning unknown option --as-needed
3862     # 10156: ignoring option '-export'; no argument required
3863     check_ldflags -wd10156,11030
3864     # Allow to compile with optimizations
3865     check_ldflags -march=$cpu
3866     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3867     enable ebp_available
3868     if enabled x86_32; then
3869         icc_version=$($cc -dumpversion)
3870         test ${icc_version%%.*} -ge 11 &&
3871             check_cflags -falign-stack=maintain-16-byte ||
3872             disable aligned_stack
3873     fi
3874 elif enabled ccc; then
3875     # disable some annoying warnings
3876     add_cflags -msg_disable cvtu32to64
3877     add_cflags -msg_disable embedcomment
3878     add_cflags -msg_disable needconstext
3879     add_cflags -msg_disable nomainieee
3880     add_cflags -msg_disable ptrmismatch1
3881     add_cflags -msg_disable unreachcode
3882 elif enabled gcc; then
3883     check_cflags -fno-tree-vectorize
3884     check_cflags -Werror=implicit-function-declaration
3885     check_cflags -Werror=missing-prototypes
3886 elif enabled llvm_gcc; then
3887     check_cflags -mllvm -stack-alignment=16
3888 elif enabled clang; then
3889     check_cflags -mllvm -stack-alignment=16
3890     check_cflags -Qunused-arguments
3891 elif enabled armcc; then
3892     # 2523: use of inline assembler is deprecated
3893     add_cflags -W${armcc_opt},--diag_suppress=2523
3894     add_cflags -W${armcc_opt},--diag_suppress=1207
3895     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3896     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3897     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3898     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3899 elif enabled tms470; then
3900     add_cflags -pds=824 -pds=837
3901 elif enabled pathscale; then
3902     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3903 elif enabled msvc; then
3904     enabled x86_32 && disable aligned_stack
3905 fi
3906
3907 enabled_any $THREADS_LIST      && enable threads
3908
3909 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3910
3911 check_deps $CONFIG_LIST       \
3912            $CONFIG_EXTRA      \
3913            $HAVE_LIST         \
3914            $ALL_COMPONENTS    \
3915            $ALL_TESTS         \
3916
3917
3918 if test $target_os = "haiku"; then
3919     disable memalign
3920     disable posix_memalign
3921 fi
3922
3923 ! enabled_any memalign posix_memalign aligned_malloc &&
3924     enabled_any $need_memalign && enable memalign_hack
3925
3926 # add_dep lib dep
3927 # -> enable ${lib}_deps_${dep}
3928 # -> add $dep to ${lib}_deps only once
3929 add_dep() {
3930     lib=$1
3931     dep=$2
3932     enabled "${lib}_deps_${dep}" && return 0
3933     enable  "${lib}_deps_${dep}"
3934     prepend "${lib}_deps" $dep
3935 }
3936
3937 # merge deps lib components
3938 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3939 merge_deps() {
3940     lib=$1
3941     shift
3942     for comp in $*; do
3943         enabled $comp || continue
3944         eval "dep=\"\$${comp}_deps\""
3945         for d in $dep; do
3946             add_dep $lib $d
3947         done
3948     done
3949 }
3950
3951 merge_deps libavfilter $FILTER_LIST
3952
3953 echo "install prefix            $prefix"
3954 echo "source path               $source_path"
3955 echo "C compiler                $cc"
3956 echo "ARCH                      $arch ($cpu)"
3957 if test "$build_suffix" != ""; then
3958     echo "build suffix              $build_suffix"
3959 fi
3960 if test "$progs_suffix" != ""; then
3961     echo "progs suffix              $progs_suffix"
3962 fi
3963 if test "$extra_version" != ""; then
3964     echo "version string suffix     $extra_version"
3965 fi
3966 echo "big-endian                ${bigendian-no}"
3967 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3968 if enabled x86; then
3969     echo "${yasmexe}                      ${yasm-no}"
3970     echo "MMX enabled               ${mmx-no}"
3971     echo "MMXEXT enabled            ${mmxext-no}"
3972     echo "3DNow! enabled            ${amd3dnow-no}"
3973     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3974     echo "SSE enabled               ${sse-no}"
3975     echo "SSSE3 enabled             ${ssse3-no}"
3976     echo "AVX enabled               ${avx-no}"
3977     echo "FMA4 enabled              ${fma4-no}"
3978     echo "CMOV enabled              ${cmov-no}"
3979     echo "CMOV is fast              ${fast_cmov-no}"
3980     echo "EBX available             ${ebx_available-no}"
3981     echo "EBP available             ${ebp_available-no}"
3982 fi
3983 if enabled arm; then
3984     echo "ARMv5TE enabled           ${armv5te-no}"
3985     echo "ARMv6 enabled             ${armv6-no}"
3986     echo "ARMv6T2 enabled           ${armv6t2-no}"
3987     echo "ARM VFP enabled           ${armvfp-no}"
3988     echo "NEON enabled              ${neon-no}"
3989 fi
3990 if enabled mips; then
3991     echo "MMI enabled               ${mmi-no}"
3992     echo "MIPS FPU enabled          ${mipsfpu-no}"
3993     echo "MIPS32R2 enabled          ${mips32r2-no}"
3994     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3995     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3996 fi
3997 if enabled ppc; then
3998     echo "AltiVec enabled           ${altivec-no}"
3999     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4000     echo "dcbzl available           ${dcbzl-no}"
4001 fi
4002 if enabled sparc; then
4003     echo "VIS enabled               ${vis-no}"
4004 fi
4005 echo "debug symbols             ${debug-no}"
4006 echo "strip symbols             ${stripping-no}"
4007 echo "optimize for size         ${small-no}"
4008 echo "optimizations             ${optimizations-no}"
4009 echo "static                    ${static-no}"
4010 echo "shared                    ${shared-no}"
4011 echo "postprocessing support    ${postproc-no}"
4012 echo "new filter support        ${avfilter-no}"
4013 echo "network support           ${network-no}"
4014 echo "threading support         ${thread_type-no}"
4015 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4016 echo "SDL support               ${sdl-no}"
4017 echo "libdxva2 enabled          ${dxva2-no}"
4018 echo "libva enabled             ${vaapi-no}"
4019 echo "libvdpau enabled          ${vdpau-no}"
4020 echo "AVISynth enabled          ${avisynth-no}"
4021 echo "frei0r enabled            ${frei0r-no}"
4022 echo "gnutls enabled            ${gnutls-no}"
4023 echo "libaacplus enabled        ${libaacplus-no}"
4024 echo "libass enabled            ${libass-no}"
4025 echo "libcaca enabled           ${libcaca-no}"
4026 echo "libcdio support           ${libcdio-no}"
4027 echo "libcelt enabled           ${libcelt-no}"
4028 echo "libdc1394 support         ${libdc1394-no}"
4029 echo "libfaac enabled           ${libfaac-no}"
4030 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4031 echo "libgsm enabled            ${libgsm-no}"
4032 echo "libiec61883 support       ${libiec61883-no}"
4033 echo "libilbc enabled           ${libilbc-no}"
4034 echo "libmodplug enabled        ${libmodplug-no}"
4035 echo "libmp3lame enabled        ${libmp3lame-no}"
4036 echo "libnut enabled            ${libnut-no}"
4037 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4038 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4039 echo "libopencv support         ${libopencv-no}"
4040 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4041 echo "libopus enabled           ${libopus-no}"
4042 echo "libpulse enabled          ${libpulse-no}"
4043 echo "librtmp enabled           ${librtmp-no}"
4044 echo "libschroedinger enabled   ${libschroedinger-no}"
4045 echo "libspeex enabled          ${libspeex-no}"
4046 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4047 echo "libtheora enabled         ${libtheora-no}"
4048 echo "libtwolame enabled        ${libtwolame-no}"
4049 echo "libutvideo enabled        ${libutvideo-no}"
4050 echo "libv4l2 enabled           ${libv4l2-no}"
4051 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4052 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4053 echo "libvorbis enabled         ${libvorbis-no}"
4054 echo "libvpx enabled            ${libvpx-no}"
4055 echo "libx264 enabled           ${libx264-no}"
4056 echo "libxavs enabled           ${libxavs-no}"
4057 echo "libxvid enabled           ${libxvid-no}"
4058 echo "openal enabled            ${openal-no}"
4059 echo "openssl enabled           ${openssl-no}"
4060 echo "zlib enabled              ${zlib-no}"
4061 echo "bzlib enabled             ${bzlib-no}"
4062 echo "texi2html enabled         ${texi2html-no}"
4063 echo "perl enabled              ${perl-no}"
4064 echo "pod2man enabled           ${pod2man-no}"
4065 echo "makeinfo enabled          ${makeinfo-no}"
4066 test -n "$random_seed" &&
4067     echo "random seed               ${random_seed}"
4068 echo
4069
4070 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4071     echo "Enabled ${type}s:"
4072     eval list=\$$(toupper $type)_LIST
4073     print_enabled '_*' $list | sort | pr -r -3 -t
4074     echo
4075 done
4076
4077 license="LGPL version 2.1 or later"
4078 if enabled nonfree; then
4079     license="nonfree and unredistributable"
4080 elif enabled gplv3; then
4081     license="GPL version 3 or later"
4082 elif enabled lgplv3; then
4083     license="LGPL version 3 or later"
4084 elif enabled gpl; then
4085     license="GPL version 2 or later"
4086 fi
4087
4088 echo "License: $license"
4089
4090 echo "Creating config.mak and config.h..."
4091
4092 test -e Makefile || $ln_s "$source_path/Makefile" .
4093
4094 enabled stripping || strip="echo skipping strip"
4095
4096 config_files="$TMPH config.mak"
4097
4098 cat > config.mak <<EOF
4099 # Automatically generated by configure - do not modify!
4100 ifndef FFMPEG_CONFIG_MAK
4101 FFMPEG_CONFIG_MAK=1
4102 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4103 prefix=$prefix
4104 LIBDIR=\$(DESTDIR)$libdir
4105 SHLIBDIR=\$(DESTDIR)$shlibdir
4106 INCDIR=\$(DESTDIR)$incdir
4107 BINDIR=\$(DESTDIR)$bindir
4108 DATADIR=\$(DESTDIR)$datadir
4109 MANDIR=\$(DESTDIR)$mandir
4110 SRC_PATH=$source_path
4111 ifndef MAIN_MAKEFILE
4112 SRC_PATH:=\$(SRC_PATH:.%=..%)
4113 endif
4114 CC_IDENT=$cc_ident
4115 ARCH=$arch
4116 CC=$cc
4117 CXX=$cxx
4118 AS=$as
4119 LD=$ld
4120 DEPCC=$dep_cc
4121 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4122 DEPAS=$as
4123 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4124 YASM=$yasmexe
4125 DEPYASM=$yasmexe
4126 AR=$ar
4127 ARFLAGS=$arflags
4128 AR_O=$ar_o
4129 RANLIB=$ranlib
4130 CP=cp -p
4131 LN_S=$ln_s
4132 STRIP=$strip
4133 CPPFLAGS=$CPPFLAGS
4134 CFLAGS=$CFLAGS
4135 CXXFLAGS=$CXXFLAGS
4136 ASFLAGS=$ASFLAGS
4137 AS_C=$AS_C
4138 AS_O=$AS_O
4139 CC_C=$CC_C
4140 CC_O=$CC_O
4141 CXX_C=$CXX_C
4142 CXX_O=$CXX_O
4143 LD_O=$LD_O
4144 LD_LIB=$LD_LIB
4145 LD_PATH=$LD_PATH
4146 DLLTOOL=$dlltool
4147 LDFLAGS=$LDFLAGS
4148 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4149 SHFLAGS=$SHFLAGS
4150 YASMFLAGS=$YASMFLAGS
4151 BUILDSUF=$build_suffix
4152 PROGSSUF=$progs_suffix
4153 FULLNAME=$FULLNAME
4154 LIBPREF=$LIBPREF
4155 LIBSUF=$LIBSUF
4156 LIBNAME=$LIBNAME
4157 SLIBPREF=$SLIBPREF
4158 SLIBSUF=$SLIBSUF
4159 EXESUF=$EXESUF
4160 EXTRA_VERSION=$extra_version
4161 CCDEP=$CCDEP
4162 CXXDEP=$CXXDEP
4163 CCDEP_FLAGS=$CCDEP_FLAGS
4164 ASDEP=$ASDEP
4165 ASDEP_FLAGS=$ASDEP_FLAGS
4166 CC_DEPFLAGS=$CC_DEPFLAGS
4167 AS_DEPFLAGS=$AS_DEPFLAGS
4168 HOSTCC=$host_cc
4169 HOSTLD=$host_ld
4170 HOSTCFLAGS=$host_cflags
4171 HOSTEXESUF=$HOSTEXESUF
4172 HOSTLDFLAGS=$host_ldflags
4173 HOSTLIBS=$host_libs
4174 DEPHOSTCC=$host_cc
4175 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4176 HOSTCCDEP=$HOSTCCDEP
4177 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4178 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4179 HOSTCC_C=$HOSTCC_C
4180 HOSTCC_O=$HOSTCC_O
4181 HOSTLD_O=$HOSTLD_O
4182 TARGET_EXEC=$target_exec
4183 TARGET_PATH=$target_path
4184 LIBS-ffplay=$sdl_libs
4185 CFLAGS-ffplay=$sdl_cflags
4186 ZLIB=$($ldflags_filter -lz)
4187 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4188 EXTRALIBS=$extralibs
4189 INSTALL=$install
4190 LIBTARGET=${LIBTARGET}
4191 SLIBNAME=${SLIBNAME}
4192 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4193 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4194 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4195 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4196 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4197 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4198 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4199 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4200 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4201 NOREDZONE_FLAGS=$noredzone_flags
4202 EOF
4203
4204 get_version(){
4205     lcname=$1
4206     name=$(toupper $lcname)
4207     file=$source_path/$lcname/version.h
4208     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4209     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4210     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4211     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4212 }
4213
4214 get_version_old(){
4215     name=$1
4216     file=$source_path/$2
4217 # This condition will be removed when we stop supporting old libpostproc versions
4218 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4219     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4220     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4221 fi
4222     lcname=$(tolower $name)
4223     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4224     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4225 }
4226
4227 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4228 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4229
4230 get_version libavcodec
4231 get_version libavdevice
4232 get_version libavfilter
4233 get_version libavformat
4234 get_version libavresample
4235 get_version libavutil
4236 get_version libswscale
4237
4238 cat > $TMPH <<EOF
4239 /* Automatically generated by configure - do not modify! */
4240 #ifndef FFMPEG_CONFIG_H
4241 #define FFMPEG_CONFIG_H
4242 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4243 #define FFMPEG_LICENSE "$(c_escape $license)"
4244 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4245 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4246 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4247 #define av_restrict $_restrict
4248 #define EXTERN_PREFIX "${extern_prefix}"
4249 #define EXTERN_ASM ${extern_prefix}
4250 #define SLIBSUF "$SLIBSUF"
4251 #define HAVE_MMX2 HAVE_MMXEXT
4252 EOF
4253
4254 test -n "$assert_level" &&
4255     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4256
4257 test -n "$malloc_prefix" &&
4258     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4259
4260 if enabled yasm; then
4261     append config_files $TMPASM
4262     printf '' >$TMPASM
4263 fi
4264
4265 print_config ARCH_   "$config_files" $ARCH_LIST
4266 print_config HAVE_   "$config_files" $HAVE_LIST
4267 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4268                                      $CONFIG_EXTRA      \
4269                                      $ALL_COMPONENTS    \
4270
4271 cat >>config.mak <<EOF
4272 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4273 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4274 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4275 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4276 EOF
4277
4278 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4279 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4280
4281 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4282 cp_if_changed $TMPH config.h
4283 touch .config
4284
4285 enabled yasm && cp_if_changed $TMPASM config.asm
4286
4287 cat > $TMPH <<EOF
4288 /* Generated by ffconf */
4289 #ifndef AVUTIL_AVCONFIG_H
4290 #define AVUTIL_AVCONFIG_H
4291 EOF
4292
4293 test "$postproc_version" != current && cat >> $TMPH <<EOF
4294 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4295 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4296 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4297 EOF
4298
4299 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4300
4301 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4302
4303 cp_if_changed $TMPH libavutil/avconfig.h
4304
4305 test -n "$WARNINGS" && printf "\n$WARNINGS"
4306
4307 # build pkg-config files
4308
4309 pkgconfig_generate(){
4310     name=$1
4311     shortname=${name#lib}${build_suffix}
4312     comment=$2
4313     version=$3
4314     libs=$4
4315     requires=$5
4316     enabled ${name#lib} || return 0
4317     mkdir -p $name
4318     cat <<EOF > $name/$name.pc
4319 prefix=$prefix
4320 exec_prefix=\${prefix}
4321 libdir=$libdir
4322 includedir=$incdir
4323
4324 Name: $name
4325 Description: $comment
4326 Version: $version
4327 Requires: $(enabled shared || echo $requires)
4328 Requires.private: $(enabled shared && echo $requires)
4329 Conflicts:
4330 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4331 Libs.private: $(enabled shared && echo $libs)
4332 Cflags: -I\${includedir}
4333 EOF
4334
4335 mkdir -p doc/examples/pc-uninstalled
4336 includedir=${source_path}
4337 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4338     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4339 prefix=
4340 exec_prefix=
4341 libdir=\${pcfiledir}/../../../$name
4342 includedir=${includedir}
4343
4344 Name: $name
4345 Description: $comment
4346 Version: $version
4347 Requires: $requires
4348 Conflicts:
4349 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4350 Cflags: -I\${includedir}
4351 EOF
4352 }
4353
4354 libavfilter_pc_deps=""
4355 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4356 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4357 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4358 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4359 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4360 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4361
4362 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4363 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4364
4365 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4366 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4367 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4368 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4369 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4370 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4371 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4372 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4373 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4374
4375 fix_ffmpeg_remote(){
4376     git_remote_from=$1
4377     git_remote_to=$2
4378     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4379     if [ "$fixme_remote" != "" ]; then
4380         echolog "
4381 Outdated domain in git config, the official domain for ffmpeg git is since
4382 November 2011, source.ffmpeg.org, both the old and the new point to the same
4383 repository and server. To update it enter the following commands:
4384 "
4385         for remote in $fixme_remote; do
4386             echolog "git remote set-url $remote $git_remote_to"
4387         done
4388     fi
4389 }
4390
4391 if test -f "$source_path/.git/config"; then
4392     remote_from=git.videolan.org
4393     remote_to=source.ffmpeg.org
4394     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4395     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4396 fi