Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58     cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 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 [$target_os]
233   --target-exec=CMD        command to run executables on target
234   --target-path=DIR        path to view of build directory on target
235   --nm=NM                  use nm tool NM [$nm_default]
236   --ar=AR                  use archive tool AR [$ar_default]
237   --as=AS                  use assembler AS [$as_default]
238   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
239   --cc=CC                  use C compiler CC [$cc_default]
240   --cxx=CXX                use C compiler CXX [$cxx_default]
241   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
242   --ld=LD                  use linker LD [$ld_default]
243   --host-cc=HOSTCC         use host C compiler HOSTCC
244   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
245   --host-ld=HOSTLD         use host linker HOSTLD
246   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
247   --host-libs=HLIBS        use libs HLIBS when linking for host
248   --host-os=OS             compiler host OS [$target_os]
249   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
250   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
251   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
252   --extra-libs=ELIBS       add ELIBS [$ELIBS]
253   --extra-version=STRING   version string suffix []
254   --optflags=OPTFLAGS      override optimization-related compiler flags
255   --build-suffix=SUFFIX    library name suffix []
256   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
257   --progs-suffix=SUFFIX    program name suffix []
258   --arch=ARCH              select architecture [$arch]
259   --cpu=CPU                select the minimum required CPU (affects
260                            instruction selection, may crash on older CPUs)
261   --enable-pic             build position-independent code
262   --enable-sram            allow use of on-chip SRAM
263   --enable-thumb           compile for Thumb instruction set
264   --disable-symver         disable symbol versioning
265   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
266   --disable-safe-bitstream-reader
267                            disable buffer boundary checking in bitreaders
268                            (faster, but may crash)
269   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
270
271 Optimization options (experts only):
272   --disable-asm            disable all assembler optimizations
273   --disable-altivec        disable AltiVec optimizations
274   --disable-amd3dnow       disable 3DNow! optimizations
275   --disable-amd3dnowext    disable 3DNow! extended optimizations
276   --disable-mmx            disable MMX optimizations
277   --disable-mmxext         disable MMXEXT optimizations
278   --disable-sse            disable SSE optimizations
279   --disable-sse2           disable SSE2 optimizations
280   --disable-sse3           disable SSE3 optimizations
281   --disable-ssse3          disable SSSE3 optimizations
282   --disable-sse4           disable SSE4 optimizations
283   --disable-sse42          disable SSE4.2 optimizations
284   --disable-avx            disable AVX optimizations
285   --disable-fma4           disable FMA4 optimizations
286   --disable-armv5te        disable armv5te optimizations
287   --disable-armv6          disable armv6 optimizations
288   --disable-armv6t2        disable armv6t2 optimizations
289   --disable-armvfp         disable ARM VFP optimizations
290   --disable-mmi            disable MMI optimizations
291   --disable-neon           disable NEON optimizations
292   --disable-vis            disable VIS optimizations
293   --disable-inline-asm     disable use of inline assembler
294   --disable-yasm           disable use of yasm assembler
295   --disable-mips32r2       disable MIPS32R2 optimizations
296   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
297   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
298   --disable-mipsfpu        disable floating point MIPS optimizations
299   --disable-fast-unaligned consider unaligned accesses slow
300   --postproc-version=V     build libpostproc version V.
301                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
302
303 Developer options (useful when working on FFmpeg itself):
304   --enable-coverage        build with test coverage instrumentation
305   --disable-debug          disable debugging symbols
306   --enable-debug=LEVEL     set the debug level [$debuglevel]
307   --disable-optimizations  disable compiler optimizations
308   --enable-extra-warnings  enable more compiler warnings
309   --disable-stripping      disable stripping of executables and shared libraries
310   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
311                            2 causes a slowdown at runtime.
312   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
313   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
314                            leaks and errors, using the specified valgrind binary.
315                            Cannot be combined with --target-exec
316   --samples=PATH           location of test samples for FATE, if not set use
317                            \$FATE_SAMPLES at make invocation time.
318   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
319                            should be used only for debugging purposes)
320   --enable-random          randomly enable/disable components
321   --disable-random
322   --enable-random=LIST     randomly enable/disable specific components or
323   --disable-random=LIST    component groups. LIST is a comma-separated list
324                            of NAME[:PROB] entries where NAME is a component
325                            (group) and PROB the probability associated with
326                            NAME (default 0.5).
327   --random-seed=VALUE      seed value for --enable/disable-random
328
329 NOTE: Object files are built at the place where configure is launched.
330 EOF
331   exit 0
332 }
333
334 quotes='""'
335
336 log(){
337     echo "$@" >> $logfile
338 }
339
340 log_file(){
341     log BEGIN $1
342     pr -n -t $1 >> $logfile
343     log END $1
344 }
345
346 echolog(){
347     log "$@"
348     echo "$@"
349 }
350
351 warn(){
352     log "WARNING: $*"
353     WARNINGS="${WARNINGS}WARNING: $*\n"
354 }
355
356 die(){
357     echolog "$@"
358     cat <<EOF
359
360 If you think configure made a mistake, make sure you are using the latest
361 version from Git.  If the latest version fails, report the problem to the
362 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
363 EOF
364     if disabled logging; then
365         cat <<EOF
366 Rerun configure with logging enabled (do not use --disable-logging), and
367 include the log this produces with your report.
368 EOF
369     else
370         cat <<EOF
371 Include the log file "$logfile" produced by configure as this will help
372 solving the problem.
373 EOF
374     fi
375     exit 1
376 }
377
378 # Avoid locale weirdness, besides we really just want to translate ASCII.
379 toupper(){
380     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
381 }
382
383 tolower(){
384     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
385 }
386
387 c_escape(){
388     echo "$*" | sed 's/["\\]/\\\0/g'
389 }
390
391 sh_quote(){
392     v=$(echo "$1" | sed "s/'/'\\\\''/g")
393     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
394     echo "$v"
395 }
396
397 cleanws(){
398     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
399 }
400
401 filter(){
402     pat=$1
403     shift
404     for v; do
405         eval "case $v in $pat) echo $v ;; esac"
406     done
407 }
408
409 filter_out(){
410     pat=$1
411     shift
412     for v; do
413         eval "case $v in $pat) ;; *) echo $v ;; esac"
414     done
415 }
416
417 map(){
418     m=$1
419     shift
420     for v; do eval $m; done
421 }
422
423 add_suffix(){
424     suffix=$1
425     shift
426     for v; do echo ${v}${suffix}; done
427 }
428
429 set_all(){
430     value=$1
431     shift
432     for var in $*; do
433         eval $var=$value
434     done
435 }
436
437 set_weak(){
438     value=$1
439     shift
440     for var; do
441         eval : \${$var:=$value}
442     done
443 }
444
445 set_safe(){
446     var=$1
447     shift
448     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
449 }
450
451 get_safe(){
452     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
453 }
454
455 pushvar(){
456     for var in $*; do
457         eval level=\${${var}_level:=0}
458         eval ${var}_${level}="\$$var"
459         eval ${var}_level=$(($level+1))
460     done
461 }
462
463 popvar(){
464     for var in $*; do
465         eval level=\${${var}_level:-0}
466         test $level = 0 && continue
467         eval level=$(($level-1))
468         eval $var="\${${var}_${level}}"
469         eval ${var}_level=$level
470         eval unset ${var}_${level}
471     done
472 }
473
474 enable(){
475     set_all yes $*
476 }
477
478 disable(){
479     set_all no $*
480 }
481
482 enable_weak(){
483     set_weak yes $*
484 }
485
486 disable_weak(){
487     set_weak no $*
488 }
489
490 enable_safe(){
491     for var; do
492         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
493     done
494 }
495
496 disable_safe(){
497     for var; do
498         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
499     done
500 }
501
502 do_enable_deep(){
503     for var; do
504         enabled $var && continue
505         eval sel="\$${var}_select"
506         eval sgs="\$${var}_suggest"
507         pushvar var sgs
508         enable_deep $sel
509         popvar sgs
510         enable_deep_weak $sgs
511         popvar var
512     done
513 }
514
515 enable_deep(){
516     do_enable_deep $*
517     enable $*
518 }
519
520 enable_deep_weak(){
521     do_enable_deep $*
522     enable_weak $*
523 }
524
525 enabled(){
526     test "${1#!}" = "$1" && op== || op=!=
527     eval test "x\$${1#!}" $op "xyes"
528 }
529
530 disabled(){
531     test "${1#!}" = "$1" && op== || op=!=
532     eval test "x\$${1#!}" $op "xno"
533 }
534
535 enabled_all(){
536     for opt; do
537         enabled $opt || return 1
538     done
539 }
540
541 disabled_all(){
542     for opt; do
543         disabled $opt || return 1
544     done
545 }
546
547 enabled_any(){
548     for opt; do
549         enabled $opt && return 0
550     done
551 }
552
553 disabled_any(){
554     for opt; do
555         disabled $opt && return 0
556     done
557     return 1
558 }
559
560 set_default(){
561     for opt; do
562         eval : \${$opt:=\$${opt}_default}
563     done
564 }
565
566 is_in(){
567     value=$1
568     shift
569     for var in $*; do
570         [ $var = $value ] && return 0
571     done
572     return 1
573 }
574
575 check_deps(){
576     for cfg; do
577         cfg="${cfg#!}"
578         enabled ${cfg}_checking && die "Circular dependency for $cfg."
579         disabled ${cfg}_checking && continue
580         enable ${cfg}_checking
581
582         eval dep_all="\$${cfg}_deps"
583         eval dep_any="\$${cfg}_deps_any"
584         eval dep_sel="\$${cfg}_select"
585         eval dep_sgs="\$${cfg}_suggest"
586         eval dep_ifa="\$${cfg}_if"
587         eval dep_ifn="\$${cfg}_if_any"
588
589         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
590         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
591         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
592
593         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
594         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
595         enabled_all  $dep_all || disable $cfg
596         enabled_any  $dep_any || disable $cfg
597         disabled_any $dep_sel && disable $cfg
598
599         if enabled $cfg; then
600             eval dep_extralibs="\$${cfg}_extralibs"
601             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
602             enable_deep $dep_sel
603             enable_deep_weak $dep_sgs
604         fi
605
606         disable ${cfg}_checking
607     done
608 }
609
610 print_config_h(){
611     enabled $1 && v=1 || v=0
612     echo "#define $2 $v"
613 }
614
615 print_config_mak(){
616     enabled $1 && v= || v=!
617     echo "$v$2=yes"
618 }
619
620 print_config_asm(){
621     enabled $1 && v=1 || v=0
622     echo "%define $2 $v"
623 }
624
625 print_config(){
626     pfx=$1
627     files=$2
628     shift 2
629     for cfg; do
630         ucname="$(toupper $cfg)"
631         for f in $files; do
632             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
633         done
634     done
635 }
636
637 print_enabled(){
638     test "$1" = -n && end=" " && shift || end="\n"
639     suf=$1
640     shift
641     for v; do
642         enabled $v && printf "%s$end" ${v%$suf};
643     done
644 }
645
646 append(){
647     var=$1
648     shift
649     eval "$var=\"\$$var $*\""
650 }
651
652 prepend(){
653     var=$1
654     shift
655     eval "$var=\"$* \$$var\""
656 }
657
658 add_cppflags(){
659     append CPPFLAGS "$@"
660 }
661
662 add_cflags(){
663     append CFLAGS $($cflags_filter "$@")
664 }
665
666 add_cxxflags(){
667     append CXXFLAGS $($cflags_filter "$@")
668 }
669
670 add_asflags(){
671     append ASFLAGS $($asflags_filter "$@")
672 }
673
674 add_ldflags(){
675     append LDFLAGS $($ldflags_filter "$@")
676 }
677
678 add_extralibs(){
679     prepend extralibs $($ldflags_filter "$@")
680 }
681
682 add_host_cflags(){
683     append host_cflags $($host_cflags_filter "$@")
684 }
685
686 add_host_ldflags(){
687     append host_ldflags $($host_ldflags_filter "$@")
688 }
689
690 check_cmd(){
691     log "$@"
692     "$@" >> $logfile 2>&1
693 }
694
695 cc_o(){
696     eval printf '%s\\n' $CC_O
697 }
698
699 cc_e(){
700     eval printf '%s\\n' $CC_E
701 }
702
703 check_cc(){
704     log check_cc "$@"
705     cat > $TMPC
706     log_file $TMPC
707     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
708 }
709
710 check_cxx(){
711     log check_cxx "$@"
712     cat > $TMPCPP
713     log_file $TMPCPP
714     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
715 }
716
717 check_cpp(){
718     log check_cpp "$@"
719     cat > $TMPC
720     log_file $TMPC
721     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
722 }
723
724 as_o(){
725     eval printf '%s\\n' $AS_O
726 }
727
728 check_as(){
729     log check_as "$@"
730     cat > $TMPC
731     log_file $TMPC
732     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
733 }
734
735 check_inline_asm(){
736     log check_inline_asm "$@"
737     name="$1"
738     code="$2"
739     shift 2
740     disable $name
741     check_as "$@" <<EOF && enable $name
742 void foo(void){ __asm__ volatile($code); }
743 EOF
744 }
745
746 check_yasm(){
747     log check_yasm "$@"
748     echo "$1" > $TMPS
749     log_file $TMPS
750     shift 1
751     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
752 }
753
754 ld_o(){
755     eval printf '%s\\n' $LD_O
756 }
757
758 check_ld(){
759     log check_ld "$@"
760     type=$1
761     shift 1
762     flags=''
763     libs=''
764     for f; do
765         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
766     done
767     check_$type $($cflags_filter $flags) || return
768     flags=$($ldflags_filter $flags)
769     libs=$($ldflags_filter $libs)
770     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
771 }
772
773 check_code(){
774     log check_code "$@"
775     check=$1
776     headers=$2
777     code=$3
778     shift 3
779     {
780         for hdr in $headers; do
781             echo "#include <$hdr>"
782         done
783         echo "int main(void) { $code; return 0; }"
784     } | check_$check "$@"
785 }
786
787 check_cppflags(){
788     log check_cppflags "$@"
789     check_cc "$@" <<EOF && append CPPFLAGS "$@"
790 int x;
791 EOF
792 }
793
794 check_cflags(){
795     log check_cflags "$@"
796     set -- $($cflags_filter "$@")
797     check_cc "$@" <<EOF && append CFLAGS "$@"
798 int x;
799 EOF
800 }
801
802 check_cxxflags(){
803     log check_cxxflags "$@"
804     set -- $($cflags_filter "$@")
805     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
806 int x;
807 EOF
808 }
809
810 test_ldflags(){
811     log test_ldflags "$@"
812     check_ld "cc" "$@" <<EOF
813 int main(void){ return 0; }
814 EOF
815 }
816
817 check_ldflags(){
818     log check_ldflags "$@"
819     test_ldflags "$@" && add_ldflags "$@"
820 }
821
822 check_header(){
823     log check_header "$@"
824     header=$1
825     shift
826     disable_safe $header
827     check_cpp "$@" <<EOF && enable_safe $header
828 #include <$header>
829 int x;
830 EOF
831 }
832
833 check_func(){
834     log check_func "$@"
835     func=$1
836     shift
837     disable $func
838     check_ld "cc" "$@" <<EOF && enable $func
839 extern int $func();
840 int main(void){ $func(); }
841 EOF
842 }
843
844 check_mathfunc(){
845     log check_mathfunc "$@"
846     func=$1
847     shift
848     disable $func
849     check_ld "cc" "$@" <<EOF && enable $func
850 #include <math.h>
851 float foo(float f) { return $func(f); }
852 int main(void){ return (int) foo; }
853 EOF
854 }
855
856 check_func_headers(){
857     log check_func_headers "$@"
858     headers=$1
859     funcs=$2
860     shift 2
861     {
862         for hdr in $headers; do
863             echo "#include <$hdr>"
864         done
865         for func in $funcs; do
866             echo "long check_$func(void) { return (long) $func; }"
867         done
868         echo "int main(void) { return 0; }"
869     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
870 }
871
872 check_class_headers_cpp(){
873     log check_class_headers_cpp "$@"
874     headers=$1
875     classes=$2
876     shift 2
877     {
878         for hdr in $headers; do
879             echo "#include <$hdr>"
880         done
881         echo "int main(void) { "
882         i=1
883         for class in $classes; do
884             echo "$class obj$i;"
885             i=$(expr $i + 1)
886         done
887         echo "return 0; }"
888     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
889 }
890
891 check_cpp_condition(){
892     log check_cpp_condition "$@"
893     header=$1
894     condition=$2
895     shift 2
896     check_cpp "$@" <<EOF
897 #include <$header>
898 #if !($condition)
899 #error "unsatisfied condition: $condition"
900 #endif
901 EOF
902 }
903
904 check_lib(){
905     log check_lib "$@"
906     header="$1"
907     func="$2"
908     shift 2
909     check_header $header && check_func $func "$@" && add_extralibs "$@"
910 }
911
912 check_lib2(){
913     log check_lib2 "$@"
914     headers="$1"
915     funcs="$2"
916     shift 2
917     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
918 }
919
920 check_lib_cpp(){
921     log check_lib_cpp "$@"
922     headers="$1"
923     classes="$2"
924     shift 2
925     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
926 }
927
928 check_pkg_config(){
929     log check_pkg_config "$@"
930     pkg="$1"
931     headers="$2"
932     funcs="$3"
933     shift 3
934     $pkg_config --exists $pkg 2>/dev/null || return
935     pkg_cflags=$($pkg_config --cflags $pkg)
936     pkg_libs=$($pkg_config --libs $pkg)
937     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
938         set_safe ${pkg}_cflags $pkg_cflags   &&
939         set_safe ${pkg}_libs   $pkg_libs
940 }
941
942 check_exec(){
943     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
944 }
945
946 check_exec_crash(){
947     code=$(cat)
948
949     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
950     # are safe but may not be available everywhere.  Thus we use
951     # raise(SIGTERM) instead.  The check is run in a subshell so we
952     # can redirect the "Terminated" message from the shell.  SIGBUS
953     # is not defined by standard C so it is used conditionally.
954
955     (check_exec "$@") >> $logfile 2>&1 <<EOF
956 #include <signal.h>
957 static void sighandler(int sig){
958     raise(SIGTERM);
959 }
960 int func(void){
961     $code
962 }
963 int (*func_ptr)(void) = func;
964 int main(void){
965     signal(SIGILL, sighandler);
966     signal(SIGFPE, sighandler);
967     signal(SIGSEGV, sighandler);
968 #ifdef SIGBUS
969     signal(SIGBUS, sighandler);
970 #endif
971     return func_ptr();
972 }
973 EOF
974 }
975
976 check_type(){
977     log check_type "$@"
978     headers=$1
979     type=$2
980     shift 2
981     disable_safe "$type"
982     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
983 }
984
985 check_struct(){
986     log check_type "$@"
987     headers=$1
988     struct=$2
989     member=$3
990     shift 3
991     disable_safe "${struct}_${member}"
992     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
993         enable_safe "${struct}_${member}"
994 }
995
996 require(){
997     name="$1"
998     header="$2"
999     func="$3"
1000     shift 3
1001     check_lib $header $func "$@" || die "ERROR: $name not found"
1002 }
1003
1004 require2(){
1005     name="$1"
1006     headers="$2"
1007     func="$3"
1008     shift 3
1009     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1010 }
1011
1012 require_cpp(){
1013     name="$1"
1014     headers="$2"
1015     classes="$3"
1016     shift 3
1017     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1018 }
1019
1020 require_pkg_config(){
1021     pkg="$1"
1022     check_pkg_config "$@" || die "ERROR: $pkg not found"
1023     add_cflags    $(get_safe ${pkg}_cflags)
1024     add_extralibs $(get_safe ${pkg}_libs)
1025 }
1026
1027 hostcc_o(){
1028     eval printf '%s\\n' $HOSTCC_O
1029 }
1030
1031 check_host_cc(){
1032     log check_host_cc "$@"
1033     cat > $TMPC
1034     log_file $TMPC
1035     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1036 }
1037
1038 check_host_cflags(){
1039     log check_host_cflags "$@"
1040     set -- $($host_cflags_filter "$@")
1041     check_host_cc "$@" <<EOF && append host_cflags "$@"
1042 int x;
1043 EOF
1044 }
1045
1046 apply(){
1047     file=$1
1048     shift
1049     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1050 }
1051
1052 cp_if_changed(){
1053     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1054     mkdir -p "$(dirname $2)"
1055     cp -f "$1" "$2"
1056 }
1057
1058 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1059 # system-dependent things.
1060
1061 COMPONENT_LIST="
1062     bsfs
1063     decoders
1064     demuxers
1065     encoders
1066     filters
1067     hwaccels
1068     indevs
1069     muxers
1070     outdevs
1071     parsers
1072     protocols
1073 "
1074
1075 DOCUMENT_LIST="
1076     doc
1077     htmlpages
1078     manpages
1079     podpages
1080     txtpages
1081 "
1082
1083 PROGRAM_LIST="
1084     ffplay
1085     ffprobe
1086     ffserver
1087     ffmpeg
1088 "
1089
1090 CONFIG_LIST="
1091     $COMPONENT_LIST
1092     $DOCUMENT_LIST
1093     $PROGRAM_LIST
1094     avcodec
1095     avdevice
1096     avfilter
1097     avformat
1098     avresample
1099     avisynth
1100     bzlib
1101     crystalhd
1102     dct
1103     dwt
1104     dxva2
1105     fast_unaligned
1106     fft
1107     fontconfig
1108     frei0r
1109     gnutls
1110     gpl
1111     gray
1112     hardcoded_tables
1113     incompatible_fork_abi
1114     libaacplus
1115     libass
1116     libbluray
1117     libcaca
1118     libcdio
1119     libcelt
1120     libdc1394
1121     libfaac
1122     libfdk_aac
1123     libflite
1124     libfreetype
1125     libgsm
1126     libiec61883
1127     libilbc
1128     libmodplug
1129     libmp3lame
1130     libnut
1131     libopencore_amrnb
1132     libopencore_amrwb
1133     libopencv
1134     libopenjpeg
1135     libopus
1136     libpulse
1137     librtmp
1138     libschroedinger
1139     libspeex
1140     libstagefright_h264
1141     libtheora
1142     libtwolame
1143     libutvideo
1144     libv4l2
1145     libvo_aacenc
1146     libvo_amrwbenc
1147     libvorbis
1148     libvpx
1149     libx264
1150     libxavs
1151     libxvid
1152     lsp
1153     mdct
1154     memalign_hack
1155     memory_poisoning
1156     network
1157     nonfree
1158     openal
1159     openssl
1160     pic
1161     postproc
1162     rdft
1163     runtime_cpudetect
1164     safe_bitstream_reader
1165     shared
1166     small
1167     sram
1168     static
1169     swresample
1170     swscale
1171     swscale_alpha
1172     thumb
1173     vaapi
1174     vda
1175     vdpau
1176     version3
1177     xmm_clobber_test
1178     x11grab
1179     zlib
1180 "
1181
1182 THREADS_LIST='
1183     pthreads
1184     w32threads
1185     os2threads
1186 '
1187
1188 ARCH_LIST='
1189     alpha
1190     arm
1191     avr32
1192     avr32_ap
1193     avr32_uc
1194     bfin
1195     ia64
1196     m68k
1197     mips
1198     mips64
1199     parisc
1200     ppc
1201     ppc64
1202     s390
1203     sh4
1204     sparc
1205     sparc64
1206     tomi
1207     x86
1208     x86_32
1209     x86_64
1210 '
1211
1212 ARCH_EXT_LIST_X86='
1213     amd3dnow
1214     amd3dnowext
1215     avx
1216     fma4
1217     mmx
1218     mmxext
1219     sse
1220     sse2
1221     sse3
1222     sse4
1223     sse42
1224     ssse3
1225 '
1226
1227 ARCH_EXT_LIST="
1228     $ARCH_EXT_LIST_X86
1229     altivec
1230     armv5te
1231     armv6
1232     armv6t2
1233     armvfp
1234     mmi
1235     neon
1236     ppc4xx
1237     vfpv3
1238     vis
1239     mipsfpu
1240     mips32r2
1241     mipsdspr1
1242     mipsdspr2
1243 "
1244
1245 HAVE_LIST_PUB='
1246     bigendian
1247     fast_unaligned
1248     incompatible_fork_abi
1249 '
1250
1251 HAVE_LIST="
1252     $ARCH_EXT_LIST
1253     $(add_suffix _external $ARCH_EXT_LIST)
1254     $(add_suffix _inline   $ARCH_EXT_LIST)
1255     $HAVE_LIST_PUB
1256     $THREADS_LIST
1257     aligned_malloc
1258     aligned_stack
1259     alsa_asoundlib_h
1260     altivec_h
1261     arpa_inet_h
1262     asm_mod_q
1263     asm_mod_y
1264     asm_types_h
1265     attribute_may_alias
1266     attribute_packed
1267     cbrtf
1268     clock_gettime
1269     closesocket
1270     cmov
1271     cpuid
1272     cpunop
1273     dcbzl
1274     dev_bktr_ioctl_bt848_h
1275     dev_bktr_ioctl_meteor_h
1276     dev_ic_bt8xx_h
1277     dev_video_bktr_ioctl_bt848_h
1278     dev_video_meteor_ioctl_meteor_h
1279     direct_h
1280     dlfcn_h
1281     dlopen
1282     dos_paths
1283     dxva_h
1284     ebp_available
1285     ebx_available
1286     exp2
1287     exp2f
1288     fast_64bit
1289     fast_clz
1290     fast_cmov
1291     fcntl
1292     fork
1293     getaddrinfo
1294     gethrtime
1295     getopt
1296     GetProcessAffinityMask
1297     GetProcessMemoryInfo
1298     GetProcessTimes
1299     GetSystemTimeAsFileTime
1300     getrusage
1301     gettimeofday
1302     glob
1303     gnu_as
1304     ibm_asm
1305     inet_aton
1306     inline_asm
1307     io_h
1308     isatty
1309     isinf
1310     isnan
1311     jack_port_get_latency_range
1312     kbhit
1313     ldbrx
1314     libdc1394_1
1315     libdc1394_2
1316     llrint
1317     llrintf
1318     local_aligned_16
1319     local_aligned_8
1320     localtime_r
1321     log2
1322     log2f
1323     loongson
1324     lrint
1325     lrintf
1326     lzo1x_999_compress
1327     machine_ioctl_bt848_h
1328     machine_ioctl_meteor_h
1329     makeinfo
1330     malloc_h
1331     MapViewOfFile
1332     memalign
1333     mkstemp
1334     mm_empty
1335     mmap
1336     msvcrt
1337     nanosleep
1338     PeekNamedPipe
1339     perl
1340     pod2man
1341     poll_h
1342     posix_memalign
1343     pthread_cancel
1344     rdtsc
1345     rint
1346     round
1347     roundf
1348     rweflags
1349     sched_getaffinity
1350     sdl
1351     sdl_video_size
1352     setmode
1353     setrlimit
1354     Sleep
1355     sndio_h
1356     socklen_t
1357     soundcard_h
1358     strerror_r
1359     struct_addrinfo
1360     struct_group_source_req
1361     struct_ip_mreq_source
1362     struct_ipv6_mreq
1363     struct_pollfd
1364     struct_rusage_ru_maxrss
1365     struct_sctp_event_subscribe
1366     struct_sockaddr_in6
1367     struct_sockaddr_sa_len
1368     struct_sockaddr_storage
1369     struct_v4l2_frmivalenum_discrete
1370     symver
1371     symver_asm_label
1372     symver_gnu_asm
1373     sysconf
1374     sysctl
1375     sys_mman_h
1376     sys_param_h
1377     sys_resource_h
1378     sys_select_h
1379     sys_soundcard_h
1380     sys_time_h
1381     sys_videoio_h
1382     termios_h
1383     texi2html
1384     threads
1385     trunc
1386     truncf
1387     unistd_h
1388     usleep
1389     vfp_args
1390     VirtualAlloc
1391     windows_h
1392     winsock2_h
1393     xform_asm
1394     xgetbv
1395     xmm_clobbers
1396     yasm
1397 "
1398
1399 # options emitted with CONFIG_ prefix but not available on command line
1400 CONFIG_EXTRA="
1401     aandcttables
1402     ac3dsp
1403     avutil
1404     error_resilience
1405     gcrypt
1406     golomb
1407     gplv3
1408     h264chroma
1409     h264dsp
1410     h264pred
1411     h264qpel
1412     huffman
1413     lgplv3
1414     lpc
1415     mpegaudiodsp
1416     mpegvideo
1417     mpegvideoenc
1418     nettle
1419     rangecoder
1420     rtpdec
1421     sinewin
1422     vp3dsp
1423 "
1424
1425 CMDLINE_SELECT="
1426     $ARCH_EXT_LIST
1427     $CONFIG_LIST
1428     $THREADS_LIST
1429     asm
1430     coverage
1431     cross_compile
1432     debug
1433     extra_warnings
1434     inline_asm
1435     logging
1436     optimizations
1437     stripping
1438     symver
1439     yasm
1440 "
1441
1442 PATHS_LIST='
1443     bindir
1444     datadir
1445     incdir
1446     libdir
1447     mandir
1448     prefix
1449     shlibdir
1450 '
1451
1452 CMDLINE_SET="
1453     $PATHS_LIST
1454     ar
1455     arch
1456     as
1457     assert_level
1458     build_suffix
1459     cc
1460     cpu
1461     cross_prefix
1462     cxx
1463     dep_cc
1464     extra_version
1465     host_cc
1466     host_cflags
1467     host_ld
1468     host_ldflags
1469     host_libs
1470     host_os
1471     install
1472     ld
1473     logfile
1474     malloc_prefix
1475     nm
1476     optflags
1477     pkg_config
1478     postproc_version
1479     progs_suffix
1480     random_seed
1481     samples
1482     strip
1483     sysinclude
1484     sysroot
1485     target_exec
1486     target_os
1487     target_path
1488     valgrind
1489     yasmexe
1490 "
1491
1492 CMDLINE_APPEND="
1493     extra_cflags
1494     extra_cxxflags
1495 "
1496
1497 # code dependency declarations
1498
1499 # architecture extensions
1500
1501 armv5te_deps="arm"
1502 armv6_deps="arm"
1503 armv6t2_deps="arm"
1504 armvfp_deps="arm"
1505 neon_deps="arm"
1506 vfpv3_deps="armvfp"
1507
1508 mipsfpu_deps="mips"
1509 mips32r2_deps="mips"
1510 mipsdspr1_deps="mips"
1511 mipsdspr2_deps="mips"
1512 mmi_deps="mips"
1513
1514 altivec_deps="ppc"
1515 ppc4xx_deps="ppc"
1516
1517 vis_deps="sparc"
1518
1519 x86_64_suggest="cmov fast_cmov"
1520
1521 amd3dnow_deps="mmx"
1522 amd3dnowext_deps="amd3dnow"
1523 mmx_deps="x86"
1524 mmxext_deps="mmx"
1525 sse_deps="mmxext"
1526 sse2_deps="sse"
1527 sse3_deps="sse2"
1528 ssse3_deps="sse3"
1529 sse4_deps="ssse3"
1530 sse42_deps="sse4"
1531 avx_deps="sse42"
1532 fma4_deps="avx"
1533
1534 mmx_external_deps="yasm"
1535 mmx_inline_deps="inline_asm"
1536 mmx_suggest="mmx_external mmx_inline"
1537
1538 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1539     eval dep=\$${ext}_deps
1540     eval ${ext}_external_deps='"${dep}_external"'
1541     eval ${ext}_inline_deps='"${dep}_inline"'
1542     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1543 done
1544
1545 aligned_stack_if_any="ppc x86"
1546 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1547 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1548 fast_unaligned_if_any="armv6 ppc x86"
1549
1550 inline_asm_deps="!tms470"
1551 need_memalign="altivec neon sse"
1552
1553 symver_if_any="symver_asm_label symver_gnu_asm"
1554
1555 log2_deps="!msvcrt"
1556
1557 # subsystems
1558 dct_select="rdft"
1559 mdct_select="fft"
1560 rdft_select="fft"
1561 mpegaudiodsp_select="dct"
1562 mpegvideoenc_select="mpegvideo"
1563
1564 # decoders / encoders / hardware accelerators
1565 aac_decoder_select="mdct sinewin"
1566 aac_encoder_select="mdct sinewin"
1567 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1568 ac3_decoder_select="mdct ac3dsp ac3_parser"
1569 ac3_encoder_select="mdct ac3dsp"
1570 ac3_fixed_encoder_select="mdct ac3dsp"
1571 alac_encoder_select="lpc"
1572 amrnb_decoder_select="lsp"
1573 amrwb_decoder_select="lsp"
1574 amv_encoder_select="aandcttables"
1575 atrac1_decoder_select="mdct sinewin"
1576 atrac3_decoder_select="mdct"
1577 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1578 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1579 cavs_decoder_select="golomb mpegvideo"
1580 cook_decoder_select="mdct sinewin"
1581 cscd_decoder_suggest="zlib"
1582 dca_decoder_select="mdct"
1583 dirac_decoder_select="dwt golomb"
1584 dnxhd_encoder_select="aandcttables mpegvideoenc"
1585 dxa_decoder_select="zlib"
1586 eac3_decoder_select="ac3_decoder"
1587 eac3_encoder_select="ac3_encoder"
1588 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1589 eatgq_decoder_select="aandcttables"
1590 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1591 exr_decoder_select="zlib"
1592 ffv1_decoder_select="golomb rangecoder"
1593 ffv1_encoder_select="rangecoder"
1594 ffvhuff_encoder_select="huffman"
1595 flac_decoder_select="golomb"
1596 flac_encoder_select="golomb lpc"
1597 flashsv_decoder_select="zlib"
1598 flashsv_encoder_select="zlib"
1599 flashsv2_encoder_select="zlib"
1600 flashsv2_decoder_select="zlib"
1601 flv_decoder_select="h263_decoder"
1602 flv_encoder_select="h263_encoder"
1603 fraps_decoder_select="huffman"
1604 h261_decoder_select="error_resilience mpegvideo"
1605 h261_encoder_select="aandcttables mpegvideoenc"
1606 h263_decoder_select="error_resilience h263_parser mpegvideo"
1607 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1608 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1609 h263i_decoder_select="h263_decoder"
1610 h263p_encoder_select="h263_encoder"
1611 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1612 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1613 h264_dxva2_hwaccel_deps="dxva2api_h"
1614 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1615 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1616 h264_vda_decoder_select="vda h264_parser h264_decoder"
1617 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1618 h264_vda_hwaccel_select="vda h264_decoder"
1619 h264_vdpau_decoder_select="vdpau h264_decoder"
1620 huffyuv_encoder_select="huffman"
1621 iac_decoder_select="fft mdct sinewin"
1622 imc_decoder_select="fft mdct sinewin"
1623 jpegls_decoder_select="golomb"
1624 jpegls_encoder_select="golomb"
1625 ljpeg_encoder_select="aandcttables mpegvideoenc"
1626 loco_decoder_select="golomb"
1627 mdec_decoder_select="error_resilience mpegvideo"
1628 mjpeg_encoder_select="aandcttables mpegvideoenc"
1629 mlp_decoder_select="mlp_parser"
1630 mp1_decoder_select="mpegaudiodsp"
1631 mp1float_decoder_select="mpegaudiodsp"
1632 mp2_decoder_select="mpegaudiodsp"
1633 mp2float_decoder_select="mpegaudiodsp"
1634 mp3_decoder_select="mpegaudiodsp"
1635 mp3adu_decoder_select="mpegaudiodsp"
1636 mp3adufloat_decoder_select="mpegaudiodsp"
1637 mp3float_decoder_select="mpegaudiodsp"
1638 mp3on4_decoder_select="mpegaudiodsp"
1639 mp3on4float_decoder_select="mpegaudiodsp"
1640 mpc7_decoder_select="mpegaudiodsp"
1641 mpc8_decoder_select="mpegaudiodsp"
1642 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1643 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1644 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1645 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1646 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1647 mpeg1video_decoder_select="error_resilience mpegvideo"
1648 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1649 mpeg2_crystalhd_decoder_select="crystalhd"
1650 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1651 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1652 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1653 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1654 mpeg2video_decoder_select="error_resilience mpegvideo"
1655 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1656 mpeg4_crystalhd_decoder_select="crystalhd"
1657 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1658 mpeg4_encoder_select="h263_encoder"
1659 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1660 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1661 msmpeg4_crystalhd_decoder_select="crystalhd"
1662 msmpeg4v1_decoder_select="h263_decoder"
1663 msmpeg4v1_encoder_select="h263_encoder"
1664 msmpeg4v2_decoder_select="h263_decoder"
1665 msmpeg4v2_encoder_select="h263_encoder"
1666 msmpeg4v3_decoder_select="h263_decoder"
1667 msmpeg4v3_encoder_select="h263_encoder"
1668 mss2_decoder_select="vc1_decoder"
1669 nellymoser_decoder_select="mdct sinewin"
1670 nellymoser_encoder_select="mdct sinewin"
1671 png_decoder_select="zlib"
1672 png_encoder_select="zlib"
1673 qcelp_decoder_select="lsp"
1674 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1675 ra_144_encoder_select="lpc"
1676 ralf_decoder_select="golomb"
1677 rv10_decoder_select="h263_decoder"
1678 rv10_encoder_select="h263_encoder"
1679 rv20_decoder_select="h263_decoder"
1680 rv20_encoder_select="h263_encoder"
1681 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1682 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1683 shorten_decoder_select="golomb"
1684 sipr_decoder_select="lsp"
1685 snow_decoder_select="dwt rangecoder"
1686 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1687 sonic_decoder_select="golomb"
1688 sonic_encoder_select="golomb"
1689 sonic_ls_encoder_select="golomb"
1690 svq1_decoder_select="error_resilience mpegvideo"
1691 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1692 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1693 svq3_decoder_suggest="zlib"
1694 theora_decoder_select="vp3_decoder"
1695 tiff_decoder_suggest="zlib"
1696 tiff_encoder_suggest="zlib"
1697 truehd_decoder_select="mlp_parser"
1698 tscc_decoder_select="zlib"
1699 twinvq_decoder_select="mdct lsp sinewin"
1700 utvideo_encoder_select="huffman"
1701 vc1_crystalhd_decoder_select="crystalhd"
1702 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1703 vc1_dxva2_hwaccel_deps="dxva2api_h"
1704 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1705 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1706 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1707 vc1image_decoder_select="vc1_decoder"
1708 vorbis_decoder_select="mdct"
1709 vorbis_encoder_select="mdct"
1710 vp3_decoder_select="vp3dsp"
1711 vp5_decoder_select="vp3dsp"
1712 vp6_decoder_select="huffman vp3dsp"
1713 vp6a_decoder_select="vp6_decoder"
1714 vp6f_decoder_select="vp6_decoder"
1715 vp8_decoder_select="h264pred h264qpel"
1716 wmapro_decoder_select="mdct sinewin"
1717 wmav1_decoder_select="mdct sinewin"
1718 wmav1_encoder_select="mdct sinewin"
1719 wmav2_decoder_select="mdct sinewin"
1720 wmav2_encoder_select="mdct sinewin"
1721 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1722 wmv1_decoder_select="h263_decoder"
1723 wmv1_encoder_select="h263_encoder"
1724 wmv2_decoder_select="h263_decoder"
1725 wmv2_encoder_select="h263_encoder"
1726 wmv3_decoder_select="vc1_decoder"
1727 wmv3_crystalhd_decoder_select="crystalhd"
1728 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1729 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1730 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1731 wmv3image_decoder_select="wmv3_decoder"
1732 zerocodec_decoder_select="zlib"
1733 zlib_decoder_select="zlib"
1734 zlib_encoder_select="zlib"
1735 zmbv_decoder_select="zlib"
1736 zmbv_encoder_select="zlib"
1737
1738 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1739 vaapi_deps="va_va_h"
1740 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1741 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1742
1743 # parsers
1744 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1745 mpeg4video_parser_select="error_resilience mpegvideo"
1746 mpegvideo_parser_select="error_resilience mpegvideo"
1747 vc1_parser_select="error_resilience mpegvideo"
1748
1749 # external libraries
1750 libaacplus_encoder_deps="libaacplus"
1751 libcelt_decoder_deps="libcelt"
1752 libfaac_encoder_deps="libfaac"
1753 libfdk_aac_encoder_deps="libfdk_aac"
1754 libgsm_decoder_deps="libgsm"
1755 libgsm_encoder_deps="libgsm"
1756 libgsm_ms_decoder_deps="libgsm"
1757 libgsm_ms_encoder_deps="libgsm"
1758 libilbc_decoder_deps="libilbc"
1759 libilbc_encoder_deps="libilbc"
1760 libmodplug_demuxer_deps="libmodplug"
1761 libmp3lame_encoder_deps="libmp3lame"
1762 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1763 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1764 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1765 libopenjpeg_decoder_deps="libopenjpeg"
1766 libopenjpeg_encoder_deps="libopenjpeg"
1767 libopus_decoder_deps="libopus"
1768 libschroedinger_decoder_deps="libschroedinger"
1769 libschroedinger_encoder_deps="libschroedinger"
1770 libspeex_decoder_deps="libspeex"
1771 libspeex_encoder_deps="libspeex"
1772 libstagefright_h264_decoder_deps="libstagefright_h264"
1773 libtheora_encoder_deps="libtheora"
1774 libtwolame_encoder_deps="libtwolame"
1775 libvo_aacenc_encoder_deps="libvo_aacenc"
1776 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1777 libvorbis_decoder_deps="libvorbis"
1778 libvorbis_encoder_deps="libvorbis"
1779 libvpx_decoder_deps="libvpx"
1780 libvpx_encoder_deps="libvpx"
1781 libx264_encoder_deps="libx264"
1782 libx264rgb_encoder_deps="libx264"
1783 libxavs_encoder_deps="libxavs"
1784 libxvid_encoder_deps="libxvid"
1785 libutvideo_decoder_deps="libutvideo"
1786 libutvideo_encoder_deps="libutvideo"
1787
1788 # demuxers / muxers
1789 ac3_demuxer_select="ac3_parser"
1790 asf_stream_muxer_select="asf_muxer"
1791 avisynth_demuxer_deps="avisynth"
1792 dirac_demuxer_select="dirac_parser"
1793 eac3_demuxer_select="ac3_parser"
1794 flac_demuxer_select="flac_parser"
1795 ipod_muxer_select="mov_muxer"
1796 libnut_demuxer_deps="libnut"
1797 libnut_muxer_deps="libnut"
1798 matroska_audio_muxer_select="matroska_muxer"
1799 matroska_demuxer_suggest="zlib bzlib"
1800 mov_demuxer_suggest="zlib"
1801 mp3_demuxer_select="mpegaudio_parser"
1802 mp4_muxer_select="mov_muxer"
1803 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1804 mpegtsraw_demuxer_select="mpegts_demuxer"
1805 mxf_d10_muxer_select="mxf_muxer"
1806 ogg_demuxer_select="golomb"
1807 psp_muxer_select="mov_muxer"
1808 rtp_demuxer_select="sdp_demuxer"
1809 rtp_muxer_select="mpegvideo"
1810 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1811 rtsp_demuxer_select="http_protocol rtpdec"
1812 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1813 sap_demuxer_select="sdp_demuxer"
1814 sap_muxer_select="rtp_muxer rtp_protocol"
1815 sdp_demuxer_select="rtpdec"
1816 spdif_muxer_select="aac_parser"
1817 tg2_muxer_select="mov_muxer"
1818 tgp_muxer_select="mov_muxer"
1819 w64_demuxer_deps="wav_demuxer"
1820
1821 # indevs / outdevs
1822 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1823 alsa_outdev_deps="alsa_asoundlib_h"
1824 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1825 caca_outdev_deps="libcaca"
1826 dshow_indev_deps="IBaseFilter"
1827 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1828 dv1394_indev_deps="dv1394 dv_demuxer"
1829 fbdev_indev_deps="linux_fb_h"
1830 iec61883_indev_deps="libiec61883"
1831 jack_indev_deps="jack_jack_h sem_timedwait"
1832 lavfi_indev_deps="avfilter"
1833 libcdio_indev_deps="libcdio"
1834 libdc1394_indev_deps="libdc1394"
1835 libv4l2_indev_deps="libv4l2"
1836 openal_indev_deps="openal"
1837 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1838 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1839 pulse_indev_deps="libpulse"
1840 sdl_outdev_deps="sdl"
1841 sndio_indev_deps="sndio_h"
1842 sndio_outdev_deps="sndio_h"
1843 v4l_indev_deps="linux_videodev_h"
1844 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1845 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1846 vfwcap_indev_extralibs="-lavicap32"
1847 x11grab_indev_deps="x11grab"
1848
1849 # protocols
1850 bluray_protocol_deps="libbluray"
1851 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1852 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1853 ffrtmpcrypt_protocol_select="tcp_protocol"
1854 ffrtmphttp_protocol_deps="!librtmp_protocol"
1855 ffrtmphttp_protocol_select="http_protocol"
1856 gopher_protocol_deps="network"
1857 httpproxy_protocol_deps="network"
1858 httpproxy_protocol_select="tcp_protocol"
1859 http_protocol_deps="network"
1860 http_protocol_select="tcp_protocol"
1861 https_protocol_select="tls_protocol"
1862 librtmp_protocol_deps="librtmp"
1863 librtmpe_protocol_deps="librtmp"
1864 librtmps_protocol_deps="librtmp"
1865 librtmpt_protocol_deps="librtmp"
1866 librtmpte_protocol_deps="librtmp"
1867 mmsh_protocol_select="http_protocol"
1868 mmst_protocol_deps="network"
1869 rtmp_protocol_deps="!librtmp_protocol"
1870 rtmp_protocol_select="tcp_protocol"
1871 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1872 rtmps_protocol_deps="!librtmp_protocol"
1873 rtmps_protocol_select="tls_protocol"
1874 rtmpt_protocol_select="ffrtmphttp_protocol"
1875 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1876 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1877 rtp_protocol_select="udp_protocol"
1878 sctp_protocol_deps="network struct_sctp_event_subscribe"
1879 tcp_protocol_deps="network"
1880 tls_protocol_deps_any="openssl gnutls"
1881 tls_protocol_select="tcp_protocol"
1882 udp_protocol_deps="network"
1883
1884 # filters
1885 aconvert_filter_deps="swresample"
1886 amovie_filter_deps="avcodec avformat"
1887 aresample_filter_deps="swresample"
1888 ass_filter_deps="libass"
1889 asyncts_filter_deps="avresample"
1890 atempo_filter_deps="avcodec rdft"
1891 blackframe_filter_deps="gpl"
1892 boxblur_filter_deps="gpl"
1893 colormatrix_filter_deps="gpl"
1894 cropdetect_filter_deps="gpl"
1895 decimate_filter_deps="gpl avcodec"
1896 delogo_filter_deps="gpl"
1897 deshake_filter_deps="avcodec"
1898 drawtext_filter_deps="libfreetype"
1899 flite_filter_deps="libflite"
1900 frei0r_filter_deps="frei0r dlopen"
1901 frei0r_filter_extralibs='$ldl'
1902 frei0r_src_filter_deps="frei0r dlopen"
1903 frei0r_src_filter_extralibs='$ldl'
1904 hqdn3d_filter_deps="gpl"
1905 movie_filter_deps="avcodec avformat"
1906 mp_filter_deps="gpl avcodec swscale postproc inline_asm"
1907 mptestsrc_filter_deps="gpl"
1908 negate_filter_deps="lut_filter"
1909 resample_filter_deps="avresample"
1910 ocv_filter_deps="libopencv"
1911 pan_filter_deps="swresample"
1912 removelogo_filter_deps="avcodec avformat swscale"
1913 scale_filter_deps="swscale"
1914 smartblur_filter_deps="gpl swscale"
1915 select_filter_deps="avcodec"
1916 showspectrum_filter_deps="avcodec"
1917 super2xsai_filter_deps="gpl"
1918 tinterlace_filter_deps="gpl"
1919 yadif_filter_deps="gpl"
1920
1921 # libraries
1922 avdevice_deps="avcodec avformat"
1923 avformat_deps="avcodec"
1924 postproc_deps="gpl"
1925
1926 # programs
1927 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1928 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
1929                setpts_filter null_filter anull_filter ffabuffersink_filter"
1930 ffplay_deps="avcodec avformat swscale swresample sdl"
1931 ffplay_select="ffbuffersink_filter rdft crop_filter"
1932 ffprobe_deps="avcodec avformat"
1933 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1934 ffserver_extralibs='$ldl'
1935
1936 # documentation
1937 podpages_deps="perl"
1938 manpages_deps="perl pod2man"
1939 htmlpages_deps="texi2html"
1940 txtpages_deps="makeinfo"
1941 doc_deps_any="manpages htmlpages podpages txtpages"
1942
1943 # tests
1944 colormatrix1_test_deps="colormatrix_filter"
1945 colormatrix2_test_deps="colormatrix_filter"
1946 flashsv2_test_deps="zlib"
1947 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1948 mpng_test_deps="zlib"
1949 pp_test_deps="mp_filter"
1950 pp2_test_deps="mp_filter"
1951 pp3_test_deps="mp_filter"
1952 pp4_test_deps="mp_filter"
1953 pp5_test_deps="mp_filter"
1954 pp6_test_deps="mp_filter"
1955 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1956 zlib_test_deps="zlib"
1957 zmbv_test_deps="zlib"
1958
1959 test_deps(){
1960     suf1=$1
1961     suf2=$2
1962     shift 2
1963     for v; do
1964         dep=${v%=*}
1965         tests=${v#*=}
1966         for name in ${tests}; do
1967             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1968         done
1969     done
1970 }
1971
1972 test_deps _muxer _demuxer                                               \
1973     aiff                                                                \
1974     pcm_alaw=alaw                                                       \
1975     asf                                                                 \
1976     au                                                                  \
1977     avi                                                                 \
1978     dv=dv_fmt                                                           \
1979     ffm                                                                 \
1980     flv=flv_fmt                                                         \
1981     gxf                                                                 \
1982     matroska=mkv                                                        \
1983     mmf                                                                 \
1984     mov="mov ismv"                                                      \
1985     pcm_mulaw=mulaw                                                     \
1986     mxf="mxf mxf_d10"                                                   \
1987     nut                                                                 \
1988     ogg="ogg ogg_vp3"                                                   \
1989     rawvideo=pixfmt                                                     \
1990     rm                                                                  \
1991     swf                                                                 \
1992     mpegts=ts                                                           \
1993     voc                                                                 \
1994     wav                                                                 \
1995     yuv4mpegpipe=yuv4mpeg                                               \
1996
1997 # default parameters
1998
1999 logfile="config.log"
2000
2001 # installation paths
2002 prefix_default="/usr/local"
2003 bindir_default='${prefix}/bin'
2004 datadir_default='${prefix}/share/ffmpeg'
2005 incdir_default='${prefix}/include'
2006 libdir_default='${prefix}/lib'
2007 mandir_default='${prefix}/share/man'
2008 shlibdir_default="$libdir_default"
2009 postproc_version_default="current"
2010
2011 # toolchain
2012 ar_default="ar"
2013 cc_default="gcc"
2014 cxx_default="g++"
2015 host_cc_default="gcc"
2016 install="install"
2017 ln_s="ln -sf"
2018 nm_default="nm"
2019 objformat="elf"
2020 pkg_config_default=pkg-config
2021 ranlib="ranlib"
2022 strip_default="strip"
2023 yasmexe_default="yasm"
2024
2025 nm_opts='-g'
2026 nogas=":"
2027
2028 # machine
2029 arch_default=$(uname -m)
2030 cpu="generic"
2031
2032 # OS
2033 target_os_default=$(tolower $(uname -s))
2034 host_os=$target_os_default
2035
2036 # alternative libpostproc version
2037 ALT_PP_VER_MAJOR=51
2038 ALT_PP_VER_MINOR=2
2039 ALT_PP_VER_MICRO=101
2040 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2041
2042 # configurable options
2043 enable $PROGRAM_LIST
2044 enable $DOCUMENT_LIST
2045
2046 enable avcodec
2047 enable avdevice
2048 enable avfilter
2049 enable avformat
2050 enable avutil
2051 enable postproc
2052 enable stripping
2053 enable swresample
2054 enable swscale
2055
2056 enable asm
2057 enable debug
2058 enable doc
2059 enable network
2060 enable optimizations
2061 enable safe_bitstream_reader
2062 enable static
2063 enable swscale_alpha
2064
2065 # build settings
2066 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2067 FFSERVERLDFLAGS=-Wl,-E
2068 LIBPREF="lib"
2069 LIBSUF=".a"
2070 FULLNAME='$(NAME)$(BUILDSUF)'
2071 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2072 SLIBPREF="lib"
2073 SLIBSUF=".so"
2074 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2075 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2076 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2077 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2078 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2079 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2080
2081 asflags_filter=echo
2082 cflags_filter=echo
2083 ldflags_filter=echo
2084
2085 AS_C='-c'
2086 AS_O='-o $@'
2087 CC_C='-c'
2088 CC_E='-E -o $@'
2089 CC_O='-o $@'
2090 CXX_C='-c'
2091 CXX_O='-o $@'
2092 LD_O='-o $@'
2093 LD_LIB='-l%'
2094 LD_PATH='-L'
2095 HOSTCC_C='-c'
2096 HOSTCC_O='-o $@'
2097 HOSTLD_O='-o $@'
2098
2099 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2100 host_libs='-lm'
2101 host_cflags_filter=echo
2102 host_ldflags_filter=echo
2103
2104 target_path='$(CURDIR)'
2105
2106 # since the object filename is not given with the -MM flag, the compiler
2107 # is only able to print the basename, and we must add the path ourselves
2108 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2109 DEPFLAGS='-MM'
2110
2111 # find source path
2112 if test -f configure; then
2113     source_path=.
2114 else
2115     source_path=$(cd $(dirname "$0"); pwd)
2116     echo "$source_path" | grep -q '[[:blank:]]' &&
2117         die "Out of tree builds are impossible with whitespace in source path."
2118     test -e "$source_path/config.h" &&
2119         die "Out of tree builds are impossible with config.h in source dir."
2120 fi
2121
2122 for v in "$@"; do
2123     r=${v#*=}
2124     l=${v%"$r"}
2125     r=$(sh_quote "$r")
2126     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2127 done
2128
2129 find_things(){
2130     thing=$1
2131     pattern=$2
2132     file=$source_path/$3
2133     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2134 }
2135
2136 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2137 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2138 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2139 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2140 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2141 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2142 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2143 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2144 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2145 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2146 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2147
2148 ALL_COMPONENTS="
2149     $BSF_LIST
2150     $DECODER_LIST
2151     $DEMUXER_LIST
2152     $ENCODER_LIST
2153     $FILTER_LIST
2154     $HWACCEL_LIST
2155     $INDEV_LIST
2156     $MUXER_LIST
2157     $OUTDEV_LIST
2158     $PARSER_LIST
2159     $PROTOCOL_LIST
2160 "
2161
2162 find_tests(){
2163     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2164 }
2165
2166 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2167 LAVF_TESTS=$(find_tests lavf)
2168 LAVFI_TESTS=$(find_tests lavfi)
2169 SEEK_TESTS=$(find_tests seek seek_)
2170
2171 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2172
2173 for n in $COMPONENT_LIST; do
2174     v=$(toupper ${n%s})_LIST
2175     eval enable \$$v
2176     eval ${n}_if_any="\$$v"
2177 done
2178
2179 enable $ARCH_EXT_LIST $ALL_TESTS
2180
2181 die_unknown(){
2182     echo "Unknown option \"$1\"."
2183     echo "See $0 --help for available options."
2184     exit 1
2185 }
2186
2187 show_list() {
2188     suffix=_$1
2189     shift
2190     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2191     exit 0
2192 }
2193
2194 rand_list(){
2195     IFS=', '
2196     set -- $*
2197     unset IFS
2198     for thing; do
2199         comp=${thing%:*}
2200         prob=${thing#$comp}
2201         prob=${prob#:}
2202         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2203         echo "prob ${prob:-0.5}"
2204         printf '%s\n' $comp
2205     done
2206 }
2207
2208 do_random(){
2209     action=$1
2210     shift
2211     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2212     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2213 }
2214
2215 for opt do
2216     optval="${opt#*=}"
2217     case "$opt" in
2218     --extra-ldflags=*) add_ldflags $optval
2219     ;;
2220     --extra-libs=*) add_extralibs $optval
2221     ;;
2222     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2223     ;;
2224     --enable-debug=*) debuglevel="$optval"
2225     ;;
2226     --disable-everything)
2227     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2228     ;;
2229     --enable-random|--disable-random)
2230     action=${opt%%-random}
2231     do_random ${action#--} $COMPONENT_LIST
2232     ;;
2233     --enable-random=*|--disable-random=*)
2234     action=${opt%%-random=*}
2235     do_random ${action#--} $optval
2236     ;;
2237     --enable-*=*|--disable-*=*)
2238     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2239     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2240     eval list=\$$(toupper $thing)_LIST
2241     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2242     $action $(filter "$name" $list)
2243     ;;
2244     --enable-?*|--disable-?*)
2245     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2246     if is_in $option $COMPONENT_LIST; then
2247         test $action = disable && action=unset
2248         eval $action \$$(toupper ${option%s})_LIST
2249     elif is_in $option $CMDLINE_SELECT; then
2250         $action $option
2251     else
2252         die_unknown $opt
2253     fi
2254     ;;
2255     --list-*)
2256         NAME="${opt#--list-}"
2257         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2258         NAME=${NAME%s}
2259         eval show_list $NAME \$$(toupper $NAME)_LIST
2260     ;;
2261     --help|-h) show_help
2262     ;;
2263     *)
2264     optname="${opt%%=*}"
2265     optname="${optname#--}"
2266     optname=$(echo "$optname" | sed 's/-/_/g')
2267     if is_in $optname $CMDLINE_SET; then
2268         eval $optname='$optval'
2269     elif is_in $optname $CMDLINE_APPEND; then
2270         append $optname "$optval"
2271     else
2272          die_unknown $opt
2273     fi
2274     ;;
2275     esac
2276 done
2277
2278 disabled logging && logfile=/dev/null
2279
2280 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2281 set >> $logfile
2282
2283 test -n "$cross_prefix" && enable cross_compile
2284
2285 if enabled cross_compile; then
2286     test -n "$arch" && test -n "$target_os" ||
2287         die "Must specify target arch and OS when cross-compiling"
2288 fi
2289
2290 set_default arch target_os postproc_version
2291
2292 # Check if we should build alternative libpostproc version instead of current
2293 if   test "$postproc_version" = $ALT_PP_VER; then
2294   LIBPOSTPROC_VERSION=$ALT_PP_VER
2295   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2296   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2297   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2298 elif test "$postproc_version" != current; then
2299   die "Invalid argument to --postproc-version. See --help output."
2300 fi
2301
2302 ar_default="${cross_prefix}${ar_default}"
2303 cc_default="${cross_prefix}${cc_default}"
2304 cxx_default="${cross_prefix}${cxx_default}"
2305 nm_default="${cross_prefix}${nm_default}"
2306 pkg_config_default="${cross_prefix}${pkg_config_default}"
2307 ranlib="${cross_prefix}${ranlib}"
2308 strip_default="${cross_prefix}${strip_default}"
2309
2310 sysinclude_default="${sysroot}/usr/include"
2311
2312 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2313 enabled cross_compile || host_cc_default=$cc
2314 set_default host_cc
2315
2316 if ! $pkg_config --version >/dev/null 2>&1; then
2317     warn "$pkg_config not found, library detection may fail."
2318     pkg_config=false
2319 fi
2320
2321 exesuf() {
2322     case $1 in
2323         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2324     esac
2325 }
2326
2327 EXESUF=$(exesuf $target_os)
2328 HOSTEXESUF=$(exesuf $host_os)
2329
2330 # set temporary file name
2331 : ${TMPDIR:=$TEMPDIR}
2332 : ${TMPDIR:=$TMP}
2333 : ${TMPDIR:=/tmp}
2334
2335 if ! check_cmd mktemp -u XXXXXX; then
2336     # simple replacement for missing mktemp
2337     # NOT SAFE FOR GENERAL USE
2338     mktemp(){
2339         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2340     }
2341 fi
2342
2343 tmpfile(){
2344     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2345         (set -C; exec > $tmp) 2>/dev/null ||
2346         die "Unable to create temporary file in $TMPDIR."
2347     append TMPFILES $tmp
2348     eval $1=$tmp
2349 }
2350
2351 trap 'rm -f -- $TMPFILES' EXIT
2352
2353 tmpfile TMPASM .asm
2354 tmpfile TMPC   .c
2355 tmpfile TMPCPP .cpp
2356 tmpfile TMPE   $EXESUF
2357 tmpfile TMPH   .h
2358 tmpfile TMPO   .o
2359 tmpfile TMPS   .S
2360 tmpfile TMPSH  .sh
2361 tmpfile TMPV   .ver
2362
2363 unset -f mktemp
2364
2365 chmod +x $TMPE
2366
2367 # make sure we can execute files in $TMPDIR
2368 cat > $TMPSH 2>> $logfile <<EOF
2369 #! /bin/sh
2370 EOF
2371 chmod +x $TMPSH >> $logfile 2>&1
2372 if ! $TMPSH >> $logfile 2>&1; then
2373     cat <<EOF
2374 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2375 variable to another directory and make sure that it is not mounted noexec.
2376 EOF
2377     die "Sanity test failed."
2378 fi
2379
2380 msvc_flags(){
2381     for flag; do
2382         case $flag in
2383             -fomit-frame-pointer) echo -Oy ;;
2384             -g)                   echo -Z7 ;;
2385             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2386                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2387                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2388                                        -wd4996 ;;
2389             -std=c99)             ;;
2390             -fno-math-errno)      ;;
2391             -fno-common)          ;;
2392             -fno-signed-zeros)    ;;
2393             -lz)                  echo zlib.lib ;;
2394             -l*)                  echo ${flag#-l}.lib ;;
2395             *)                    echo $flag ;;
2396         esac
2397     done
2398 }
2399
2400 pgi_flags(){
2401     for flag; do
2402         case $flag in
2403             -fomit-frame-pointer) echo -Mnoframe ;;
2404             -g)                   echo -gopt ;;
2405             *)                    echo $flag ;;
2406         esac
2407     done
2408 }
2409
2410 suncc_flags(){
2411     for flag; do
2412         case $flag in
2413             -march=*|-mcpu=*)
2414                 case "${flag#*=}" in
2415                     native)                   echo -xtarget=native       ;;
2416                     v9|niagara)               echo -xarch=sparc          ;;
2417                     ultrasparc)               echo -xarch=sparcvis       ;;
2418                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2419                     i586|pentium)             echo -xchip=pentium        ;;
2420                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2421                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2422                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2423                     pentium4*)          echo -xtarget=pentium4           ;;
2424                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2425                     *-sse3)             echo -xarch=sse3                 ;;
2426                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2427                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2428                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2429                     k8|opteron|athlon64|athlon-fx)
2430                                               echo -xarch=sse2a          ;;
2431                     athlon*)                  echo -xarch=pentium_proa   ;;
2432                 esac
2433                 ;;
2434             -std=c99)             echo -xc99              ;;
2435             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2436             -fPIC)                echo -KPIC -xcode=pic32 ;;
2437             -W*,*)                echo $flag              ;;
2438             -f*-*|-W*)                                    ;;
2439             *)                    echo $flag              ;;
2440         esac
2441     done
2442 }
2443
2444 tms470_flags(){
2445     for flag; do
2446         case $flag in
2447             -march=*|-mcpu=*)
2448                 case "${flag#*=}" in
2449                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2450                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2451                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2452                     armv6*|arm11*)          echo -mv=6   ;;
2453                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2454                                             echo -mv=5e  ;;
2455                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2456                 esac
2457                 ;;
2458             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2459             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2460             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2461             -msoft-float)   echo --float_support=vfplib       ;;
2462             -O[0-3]|-mf=*)  echo $flag                        ;;
2463             -g)             echo -g -mn                       ;;
2464             -pds=*)         echo $flag                        ;;
2465             -D*|-I*)        echo $flag                        ;;
2466             --gcc|--abi=*)  echo $flag                        ;;
2467             -me)            echo $flag                        ;;
2468         esac
2469     done
2470 }
2471
2472 probe_cc(){
2473     pfx=$1
2474     _cc=$2
2475
2476     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2477     unset _ld_o _ldflags _ld_lib _ld_path
2478     unset _depflags _DEPCMD _DEPFLAGS
2479     _flags_filter=echo
2480
2481     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2482         _type=llvm_gcc
2483         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2484         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2485         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2486         _cflags_speed='-O3'
2487         _cflags_size='-Os'
2488     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2489         _type=gcc
2490         gcc_version=$($_cc --version | head -n1)
2491         gcc_basever=$($_cc -dumpversion)
2492         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2493         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2494         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2495         if ! $_cc -dumpversion | grep -q '^2\.'; then
2496             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2497         fi
2498         _cflags_speed='-O3'
2499         _cflags_size='-Os'
2500     elif $_cc --version 2>/dev/null | grep -q Intel; then
2501         _type=icc
2502         _ident=$($_cc --version | head -n1)
2503         _depflags='-MMD'
2504         _cflags_speed='-O3'
2505         _cflags_size='-Os'
2506         _cflags_noopt='-O1'
2507     elif $_cc -v 2>&1 | grep -q xlc; then
2508         _type=xlc
2509         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2510         _cflags_speed='-O5'
2511         _cflags_size='-O5 -qcompact'
2512     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2513         _type=ccc
2514         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2515         _DEPFLAGS='-M'
2516         debuglevel=3
2517         _ldflags='-Wl,-z,now' # calls to libots crash without this
2518         _cflags_speed='-fast'
2519         _cflags_size='-O1'
2520     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2521         test -d "$sysroot" || die "No valid sysroot specified."
2522         _type=armcc
2523         _ident=$($_cc --vsn | head -n1)
2524         armcc_conf="$PWD/armcc.conf"
2525         $_cc --arm_linux_configure                 \
2526              --arm_linux_config_file="$armcc_conf" \
2527              --configure_sysroot="$sysroot"        \
2528              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2529              die "Error creating armcc configuration file."
2530         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2531         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2532         as_default="${cross_prefix}gcc"
2533         _depflags='-MMD'
2534         _cflags_speed='-O3'
2535         _cflags_size='-Os'
2536     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2537         _type=tms470
2538         _ident=$($_cc -version | head -n1 | tr -s ' ')
2539         _flags='--gcc --abi=eabi -me'
2540         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2541         _cc_e='-ppl -fe=$@'
2542         _cc_o='-fe=$@'
2543         as_default="${cross_prefix}gcc"
2544         ld_default="${cross_prefix}gcc"
2545         _depflags='-ppa -ppd=$(@:.o=.d)'
2546         _cflags_speed='-O3 -mf=5'
2547         _cflags_size='-O3 -mf=2'
2548         _flags_filter=tms470_flags
2549     elif $_cc -v 2>&1 | grep -q clang; then
2550         _type=clang
2551         _ident=$($_cc --version | head -n1)
2552         _depflags='-MMD'
2553         _cflags_speed='-O3'
2554         _cflags_size='-Os'
2555     elif $_cc -V 2>&1 | grep -q Sun; then
2556         _type=suncc
2557         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2558         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2559         _DEPFLAGS='-xM1 -xc99'
2560         _ldflags='-std=c99'
2561         _cflags_speed='-O5'
2562         _cflags_size='-O5 -xspace'
2563         _flags_filter=suncc_flags
2564     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2565         _type=pathscale
2566         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2567         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2568         _cflags_speed='-O2'
2569         _cflags_size='-Os'
2570         _flags_filter='filter_out -Wdisabled-optimization'
2571     elif $_cc -v 2>&1 | grep -q Open64; then
2572         _type=open64
2573         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2574         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2575         _cflags_speed='-O2'
2576         _cflags_size='-Os'
2577         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2578     elif $_cc -V 2>&1 | grep -q Portland; then
2579         _type=pgi
2580         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2581         opt_common='-alias=ansi -Mlre -Mpre'
2582         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2583         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2584         _cflags_noopt="-O1"
2585         _flags_filter=pgi_flags
2586     elif $_cc 2>&1 | grep -q Microsoft; then
2587         _type=msvc
2588         _ident=$($cc 2>&1 | head -n1)
2589         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2590         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2591         _cflags_speed="-O2"
2592         _cflags_size="-O1"
2593         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2594         if $_cc 2>&1 | grep -q Linker; then
2595             _ld_o='-out $@'
2596         else
2597             _ld_o='-Fe$@'
2598         fi
2599         _cc_o='-Fo $@'
2600         _cc_e='-P -Fi $@'
2601         _flags_filter=msvc_flags
2602         _ld_lib='lib%.a'
2603         _ld_path='-libpath:'
2604         _flags='-nologo'
2605         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2606         if [ $pfx = hostcc ]; then
2607             append _cflags -Dsnprintf=_snprintf
2608         fi
2609     fi
2610
2611     eval ${pfx}_type=\$_type
2612     eval ${pfx}_ident=\$_ident
2613 }
2614
2615 set_ccvars(){
2616     eval ${1}_C=\${_cc_c-\${${1}_C}}
2617     eval ${1}_E=\${_cc_e-\${${1}_E}}
2618     eval ${1}_O=\${_cc_o-\${${1}_O}}
2619
2620     if [ -n "$_depflags" ]; then
2621         eval ${1}_DEPFLAGS=\$_depflags
2622     else
2623         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2624         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2625         eval DEP${1}FLAGS=\$_flags
2626     fi
2627 }
2628
2629 probe_cc cc "$cc"
2630 cflags_filter=$_flags_filter
2631 cflags_speed=$_cflags_speed
2632 cflags_size=$_cflags_size
2633 cflags_noopt=$_cflags_noopt
2634 add_cflags $_flags $_cflags
2635 cc_ldflags=$_ldflags
2636 set_ccvars CC
2637
2638 probe_cc hostcc "$host_cc"
2639 host_cflags_filter=$_flags_filter
2640 add_host_cflags  $_flags $_cflags
2641 set_ccvars HOSTCC
2642
2643 test -n "$cc_type" && enable $cc_type ||
2644     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2645
2646 : ${as_default:=$cc}
2647 : ${dep_cc_default:=$cc}
2648 : ${ld_default:=$cc}
2649 : ${host_ld_default:=$host_cc}
2650 set_default ar as dep_cc ld host_ld
2651
2652 probe_cc as "$as"
2653 asflags_filter=$_flags_filter
2654 add_asflags $_flags $_cflags
2655 set_ccvars AS
2656
2657 probe_cc ld "$ld"
2658 ldflags_filter=$_flags_filter
2659 add_ldflags $_flags $_ldflags
2660 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2661 LD_O=${_ld_o-$LD_O}
2662 LD_LIB=${_ld_lib-$LD_LIB}
2663 LD_PATH=${_ld_path-$LD_PATH}
2664
2665 probe_cc hostld "$host_ld"
2666 host_ldflags_filter=$_flags_filter
2667 add_host_ldflags $_flags $_ldflags
2668 HOSTLD_O=${_ld_o-$HOSTLD_O}
2669
2670 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2671     probe_cc depcc "$dep_cc"
2672     CCDEP=${_DEPCMD:-$DEPCMD}
2673     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2674     DEPCCFLAGS=$_flags
2675 fi
2676
2677 add_cflags $extra_cflags
2678 add_cxxflags $extra_cxxflags
2679 add_asflags $extra_cflags
2680
2681 if test -n "$sysroot"; then
2682     case "$cc_type" in
2683         gcc|llvm_gcc|clang)
2684             add_cppflags --sysroot="$sysroot"
2685             add_ldflags --sysroot="$sysroot"
2686         ;;
2687         tms470)
2688             add_cppflags -I"$sysinclude"
2689             add_ldflags  --sysroot="$sysroot"
2690         ;;
2691     esac
2692 fi
2693
2694 if test "$cpu" = host; then
2695     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2696
2697     case "$cc_type" in
2698         gcc|llvm_gcc)
2699             check_native(){
2700                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2701                 sed -n "/cc1.*$1=/{
2702                             s/.*$1=\\([^ ]*\\).*/\\1/
2703                             p
2704                             q
2705                         }" $TMPE
2706             }
2707             cpu=$(check_native -march || check_native -mcpu)
2708         ;;
2709     esac
2710
2711     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2712 fi
2713
2714 # Deal with common $arch aliases
2715 case "$arch" in
2716     arm*|iPad*)
2717         arch="arm"
2718     ;;
2719     mips|mipsel|IP*)
2720         arch="mips"
2721     ;;
2722     mips64*)
2723         arch="mips"
2724         subarch="mips64"
2725     ;;
2726     parisc|hppa)
2727         arch="parisc"
2728     ;;
2729     parisc64|hppa64)
2730         arch="parisc"
2731         subarch="parisc64"
2732     ;;
2733     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2734         arch="ppc"
2735     ;;
2736     s390|s390x)
2737         arch="s390"
2738     ;;
2739     sh4|sh)
2740         arch="sh4"
2741     ;;
2742     sun4u|sparc64)
2743         arch="sparc"
2744         subarch="sparc64"
2745     ;;
2746     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2747         arch="x86"
2748     ;;
2749 esac
2750
2751 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2752 enable $arch
2753
2754 # Add processor-specific flags
2755 if test "$cpu" = generic; then
2756     : do nothing
2757 elif enabled ppc; then
2758
2759     case $(tolower $cpu) in
2760         601|ppc601|powerpc601)
2761             cpuflags="-mcpu=601"
2762             disable altivec
2763         ;;
2764         603*|ppc603*|powerpc603*)
2765             cpuflags="-mcpu=603"
2766             disable altivec
2767         ;;
2768         604*|ppc604*|powerpc604*)
2769             cpuflags="-mcpu=604"
2770             disable altivec
2771         ;;
2772         g3|75*|ppc75*|powerpc75*)
2773             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2774             disable altivec
2775         ;;
2776         g4|745*|ppc745*|powerpc745*)
2777             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2778         ;;
2779         74*|ppc74*|powerpc74*)
2780             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2781         ;;
2782         g5|970|ppc970|powerpc970)
2783             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2784         ;;
2785         power[3-7]*)
2786             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2787         ;;
2788         cell)
2789             cpuflags="-mcpu=cell"
2790             enable ldbrx
2791         ;;
2792         e500mc)
2793             cpuflags="-mcpu=e500mc"
2794             disable altivec
2795         ;;
2796         e500v2)
2797             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2798             disable altivec
2799         ;;
2800         e500)
2801             cpuflags="-mcpu=8540 -mhard-float"
2802             disable altivec
2803         ;;
2804     esac
2805
2806 elif enabled x86; then
2807
2808     case $cpu in
2809         i[345]86|pentium)
2810             cpuflags="-march=$cpu"
2811             disable mmx
2812         ;;
2813         # targets that do NOT support conditional mov (cmov)
2814         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2815             cpuflags="-march=$cpu"
2816             disable cmov
2817         ;;
2818         # targets that do support conditional mov (cmov)
2819         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2820             cpuflags="-march=$cpu"
2821             enable cmov
2822             enable fast_cmov
2823         ;;
2824         # targets that do support conditional mov but on which it's slow
2825         pentium4|pentium4m|prescott|nocona)
2826             cpuflags="-march=$cpu"
2827             enable cmov
2828             disable fast_cmov
2829         ;;
2830     esac
2831
2832 elif enabled sparc; then
2833
2834     case $cpu in
2835         niagara)
2836             cpuflags="-mcpu=$cpu"
2837             disable vis
2838         ;;
2839         sparc64)
2840             cpuflags="-mcpu=v9"
2841         ;;
2842     esac
2843
2844 elif enabled arm; then
2845
2846     case $cpu in
2847         armv*)
2848             cpuflags="-march=$cpu"
2849             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2850         ;;
2851         *)
2852             cpuflags="-mcpu=$cpu"
2853             case $cpu in
2854                 cortex-a*)                               subarch=armv7a  ;;
2855                 cortex-r*)                               subarch=armv7r  ;;
2856                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2857                 arm11*)                                  subarch=armv6   ;;
2858                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2859                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2860             esac
2861         ;;
2862     esac
2863
2864 elif enabled alpha; then
2865
2866     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2867
2868 elif enabled bfin; then
2869
2870     cpuflags="-mcpu=$cpu"
2871
2872 elif enabled mips; then
2873
2874     cpuflags="-march=$cpu"
2875
2876     case $cpu in
2877         24kc)
2878             disable mipsfpu
2879             disable mipsdspr1
2880             disable mipsdspr2
2881         ;;
2882         24kf*)
2883             disable mipsdspr1
2884             disable mipsdspr2
2885         ;;
2886         24kec|34kc|1004kc)
2887             disable mipsfpu
2888             disable mipsdspr2
2889         ;;
2890         24kef*|34kf*|1004kf*)
2891             disable mipsdspr2
2892         ;;
2893         74kc)
2894             disable mipsfpu
2895         ;;
2896     esac
2897
2898 elif enabled avr32; then
2899
2900     case $cpu in
2901         ap7[02]0[0-2])
2902             subarch="avr32_ap"
2903             cpuflags="-mpart=$cpu"
2904         ;;
2905         ap)
2906             subarch="avr32_ap"
2907             cpuflags="-march=$cpu"
2908         ;;
2909         uc3[ab]*)
2910             subarch="avr32_uc"
2911             cpuflags="-mcpu=$cpu"
2912         ;;
2913         uc)
2914             subarch="avr32_uc"
2915             cpuflags="-march=$cpu"
2916         ;;
2917     esac
2918
2919 fi
2920
2921 add_cflags $cpuflags
2922 add_asflags $cpuflags
2923
2924 # compiler sanity check
2925 check_exec <<EOF
2926 int main(void){ return 0; }
2927 EOF
2928 if test "$?" != 0; then
2929     echo "$cc is unable to create an executable file."
2930     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2931         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2932         echo "Only do this if you know what cross compiling means."
2933     fi
2934     die "C compiler test failed."
2935 fi
2936
2937 add_cppflags -D_ISOC99_SOURCE
2938 add_cxxflags -D__STDC_CONSTANT_MACROS
2939 check_cflags -std=c99
2940 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2941 #include <stdlib.h>
2942 EOF
2943 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2944 #include <stdlib.h>
2945 EOF
2946
2947 check_host_cflags -std=c99
2948 check_host_cflags -Wall
2949
2950 case "$arch" in
2951     alpha|ia64|mips|parisc|sparc)
2952         spic=$shared
2953     ;;
2954     x86)
2955         subarch="x86_32"
2956         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2957         if test "$subarch" = "x86_64"; then
2958             spic=$shared
2959         fi
2960     ;;
2961     ppc)
2962         check_cc <<EOF && subarch="ppc64"
2963         int test[(int)sizeof(char*) - 7];
2964 EOF
2965     ;;
2966 esac
2967
2968 enable $subarch
2969 enabled spic && enable pic
2970
2971 # OS specific
2972 case $target_os in
2973     haiku)
2974         prefix_default="/boot/common"
2975         network_extralibs="-lnetwork"
2976         host_libs=
2977         ;;
2978     sunos)
2979         FFSERVERLDFLAGS=""
2980         SHFLAGS='-shared -Wl,-h,$$(@F)'
2981         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2982         network_extralibs="-lsocket -lnsl"
2983         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2984         # When using suncc to build, the Solaris linker will mark
2985         # an executable with each instruction set encountered by
2986         # the Solaris assembler.  As our libraries contain their own
2987         # guards for processor-specific code, instead suppress
2988         # generation of the HWCAPS ELF section on Solaris x86 only.
2989         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2990         nm_opts='-P -g'
2991         ;;
2992     netbsd)
2993         disable symver
2994         oss_indev_extralibs="-lossaudio"
2995         oss_outdev_extralibs="-lossaudio"
2996         enabled gcc || check_ldflags -Wl,-zmuldefs
2997         ;;
2998     openbsd|bitrig)
2999         # On OpenBSD 4.5. the compiler does not use PIC unless
3000         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3001         # however the generated executable will not do anything
3002         # (simply quits with exit-code 1, no crash, no output).
3003         # Thus explicitly enable PIC here.
3004         enable pic
3005         disable symver
3006         SHFLAGS='-shared'
3007         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3008         SLIB_INSTALL_LINKS=
3009         oss_indev_extralibs="-lossaudio"
3010         oss_outdev_extralibs="-lossaudio"
3011         ;;
3012     dragonfly)
3013         disable symver
3014         ;;
3015     freebsd)
3016         ;;
3017     bsd/os)
3018         add_extralibs -lpoll -lgnugetopt
3019         strip="strip -d"
3020         ;;
3021     darwin)
3022         gas="gas-preprocessor.pl $cc"
3023         enabled ppc && add_asflags -force_cpusubtype_ALL
3024         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3025         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3026         strip="${strip} -x"
3027         add_ldflags -Wl,-dynamic,-search_paths_first
3028         SLIBSUF=".dylib"
3029         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3030         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3031         FFSERVERLDFLAGS=-Wl,-bind_at_load
3032         objformat="macho"
3033         enabled x86_64 && objformat="macho64"
3034         enabled_any pic shared ||
3035             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3036         ;;
3037     mingw32*)
3038         if test $target_os = "mingw32ce"; then
3039             disable network
3040         else
3041             target_os=mingw32
3042         fi
3043         LIBTARGET=i386
3044         if enabled x86_64; then
3045             LIBTARGET="i386:x86-64"
3046         elif enabled arm; then
3047             LIBTARGET=arm-wince
3048         fi
3049         shlibdir_default="$bindir_default"
3050         SLIBPREF=""
3051         SLIBSUF=".dll"
3052         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3053         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3054         dlltool="${cross_prefix}dlltool"
3055         if check_cmd lib.exe -list; then
3056             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3057             if enabled x86_64; then
3058                 LIBTARGET=x64
3059             fi
3060         elif check_cmd $dlltool --version; then
3061             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3062         fi
3063         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3064         SLIB_INSTALL_LINKS=
3065         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3066         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3067         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3068         objformat="win32"
3069         ranlib=:
3070         enable dos_paths
3071         check_cflags -fno-common
3072         add_cppflags -U__STRICT_ANSI__
3073         ;;
3074     cygwin*)
3075         target_os=cygwin
3076         shlibdir_default="$bindir_default"
3077         SLIBPREF="cyg"
3078         SLIBSUF=".dll"
3079         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3080         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3081         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3082         SLIB_INSTALL_LINKS=
3083         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3084         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3085         objformat="win32"
3086         enable dos_paths
3087         check_cflags -fno-common
3088         add_cppflags -U__STRICT_ANSI__
3089         ;;
3090     *-dos|freedos|opendos)
3091         network_extralibs="-lsocket"
3092         objformat="coff"
3093         enable dos_paths
3094         add_cppflags -U__STRICT_ANSI__
3095         ;;
3096     linux)
3097         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3098         enable dv1394
3099         ;;
3100     irix*)
3101         target_os=irix
3102         ranlib="echo ignoring ranlib"
3103         ;;
3104     os/2*)
3105         strip="lxlite -CS"
3106         ln_s="cp -f"
3107         objformat="aout"
3108         add_cppflags -D_GNU_SOURCE
3109         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3110         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3111         FFSERVERLDFLAGS=""
3112         LIBSUF="_s.a"
3113         SLIBPREF=""
3114         SLIBSUF=".dll"
3115         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3116         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3117         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3118             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3119             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3120             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3121             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3122             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3123         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3124             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3125         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3126         enable dos_paths
3127         enable_weak os2threads
3128         ;;
3129     gnu/kfreebsd)
3130         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3131         ;;
3132     gnu)
3133         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3134         ;;
3135     qnx)
3136         add_cppflags -D_QNX_SOURCE
3137         network_extralibs="-lsocket"
3138         ;;
3139     symbian)
3140         SLIBSUF=".dll"
3141         enable dos_paths
3142         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3143         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3144         add_ldflags -Wl,--target1-abs,--no-undefined \
3145                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3146                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3147         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3148                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3149                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3150         ;;
3151     none)
3152         ;;
3153     *)
3154         die "Unknown OS '$target_os'."
3155         ;;
3156 esac
3157
3158 # determine libc flavour
3159
3160 if check_cpp_condition features.h "defined __UCLIBC__"; then
3161     libc_type=uclibc
3162 elif check_cpp_condition features.h "defined __GLIBC__"; then
3163     libc_type=glibc
3164 elif check_header _mingw.h; then
3165     libc_type=mingw
3166     check_cpp_condition _mingw.h \
3167         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3168             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3169         die "ERROR: MinGW runtime version must be >= 3.15."
3170 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3171     libc_type=newlib
3172 elif check_func_headers stdlib.h _get_doserrno; then
3173     libc_type=msvcrt
3174     add_cflags -Dstrtod=avpriv_strtod
3175     add_cflags -Dsnprintf=avpriv_snprintf   \
3176                -D_snprintf=avpriv_snprintf  \
3177                -Dvsnprintf=avpriv_vsnprintf
3178 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3179     libc_type=klibc
3180 fi
3181
3182 test -n "$libc_type" && enable $libc_type
3183
3184 esc(){
3185     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3186 }
3187
3188 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3189
3190 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3191
3192 set_default $PATHS_LIST
3193
3194 # we need to build at least one lib type
3195 if ! enabled_any static shared; then
3196     cat <<EOF
3197 At least one library type must be built.
3198 Specify --enable-static to build the static libraries or --enable-shared to
3199 build the shared libraries as well. To only build the shared libraries specify
3200 --disable-static in addition to --enable-shared.
3201 EOF
3202     exit 1;
3203 fi
3204
3205 die_license_disabled() {
3206     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3207 }
3208
3209 die_license_disabled_gpl() {
3210     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3211 }
3212
3213 die_license_disabled gpl libcdio
3214 die_license_disabled gpl libutvideo
3215 die_license_disabled gpl libx264
3216 die_license_disabled gpl libxavs
3217 die_license_disabled gpl libxvid
3218 die_license_disabled gpl x11grab
3219
3220 die_license_disabled nonfree libaacplus
3221 die_license_disabled nonfree libfaac
3222 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3223 enabled gpl && die_license_disabled_gpl nonfree openssl
3224
3225 die_license_disabled version3 libopencore_amrnb
3226 die_license_disabled version3 libopencore_amrwb
3227 die_license_disabled version3 libvo_aacenc
3228 die_license_disabled version3 libvo_amrwbenc
3229
3230 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3231
3232 disabled optimizations || check_cflags -fomit-frame-pointer
3233
3234 enable_pic() {
3235     enable pic
3236     add_cppflags -DPIC
3237     add_cflags   -fPIC
3238     add_asflags  -fPIC
3239 }
3240
3241 enabled pic && enable_pic
3242
3243 check_cc <<EOF || die "Symbol mangling check failed."
3244 int ff_extern;
3245 EOF
3246 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3247 extern_prefix=${sym%%ff_extern*}
3248
3249 check_cc <<EOF && enable_weak inline_asm
3250 void foo(void) { __asm__ volatile ("" ::); }
3251 EOF
3252
3253 _restrict=
3254 for restrict_keyword in restrict __restrict__ __restrict; do
3255     check_cc <<EOF && _restrict=$restrict_keyword && break
3256 void foo(char * $restrict_keyword p);
3257 EOF
3258 done
3259
3260 check_cc <<EOF && enable attribute_packed
3261 struct { int x; } __attribute__((packed)) x;
3262 EOF
3263
3264 check_cc <<EOF && enable attribute_may_alias
3265 union { int x; } __attribute__((may_alias)) x;
3266 EOF
3267
3268 check_cc <<EOF || die "endian test failed"
3269 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3270 EOF
3271 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3272
3273 if enabled alpha; then
3274
3275     check_cflags -mieee
3276
3277 elif enabled arm; then
3278
3279     enabled thumb && check_cflags -mthumb || check_cflags -marm
3280     nogas=die
3281
3282     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3283         enable vfp_args
3284     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3285         case "${cross_prefix:-$cc}" in
3286             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3287             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3288 __asm__ (".eabi_attribute 28, 1");
3289 int main(void) { return 0; }
3290 EOF
3291         esac
3292         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3293     fi
3294
3295     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3296     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3297     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3298     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3299     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3300     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3301
3302     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3303     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3304
3305     enabled_all armv6t2 shared !pic && enable_pic
3306
3307 elif enabled mips; then
3308
3309     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3310     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3311     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3312      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3313     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3314      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3315     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3316      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3317     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3318      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3319
3320 elif enabled ppc; then
3321
3322     enable local_aligned_8 local_aligned_16
3323
3324     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3325     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3326     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3327     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3328
3329     # AltiVec flags: The FSF version of GCC differs from the Apple version
3330     if enabled altivec; then
3331         nogas=warn
3332         check_cflags -maltivec -mabi=altivec &&
3333         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3334         check_cflags -faltivec
3335
3336         # check if our compiler supports Motorola AltiVec C API
3337         check_cc <<EOF || disable altivec
3338 $inc_altivec_h
3339 int main(void) {
3340     vector signed int v1 = (vector signed int) { 0 };
3341     vector signed int v2 = (vector signed int) { 1 };
3342     v1 = vec_add(v1, v2);
3343     return 0;
3344 }
3345 EOF
3346
3347         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3348     fi
3349
3350 elif enabled sparc; then
3351
3352     enabled vis &&
3353         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3354             add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3355
3356 elif enabled x86; then
3357
3358     check_code ld immintrin.h "return __xgetbv(0)" "cc" && enable xgetbv
3359     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3360     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3361     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3362
3363     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3364
3365     enable local_aligned_8 local_aligned_16
3366
3367     # check whether EBP is available on x86
3368     # As 'i' is stored on the stack, this program will crash
3369     # if the base pointer is used to access it because the
3370     # base pointer is cleared in the inline assembly code.
3371     check_exec_crash <<EOF && enable ebp_available
3372 volatile int i=0;
3373 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3374 return i;
3375 EOF
3376
3377     # check whether EBX is available on x86
3378     check_inline_asm ebx_available '""::"b"(0)' &&
3379         check_inline_asm ebx_available '"":::"%ebx"'
3380
3381     # check whether xmm clobbers are supported
3382     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3383
3384     # check whether binutils is new enough to compile SSSE3/MMXEXT
3385     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3386     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3387
3388     if ! disabled_any asm mmx yasm; then
3389         if check_cmd $yasmexe --version; then
3390             enabled x86_64 && yasm_extra="-m amd64"
3391             yasm_debug="-g dwarf2"
3392         elif check_cmd nasm -v; then
3393             yasmexe=nasm
3394             yasm_debug="-g -F dwarf"
3395             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3396         fi
3397
3398         YASMFLAGS="-f $objformat $yasm_extra"
3399         enabled pic               && append YASMFLAGS "-DPIC"
3400         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3401         case "$objformat" in
3402             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3403         esac
3404
3405         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3406             die "yasm not found, use --disable-yasm for a crippled build"
3407         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3408         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3409         check_yasm "CPU amdnop" && enable cpunop
3410     fi
3411
3412     case "$cpu" in
3413         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3414             disable fast_clz
3415         ;;
3416     esac
3417
3418 fi
3419
3420 if enabled asm; then
3421     as=${gas:=$as}
3422     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3423         $nogas "GNU assembler not found, install gas-preprocessor"
3424 fi
3425
3426 check_ldflags -Wl,--as-needed
3427
3428 if check_func dlopen; then
3429     ldl=
3430 elif check_func dlopen -ldl; then
3431     ldl=-ldl
3432 fi
3433
3434 if enabled network; then
3435     check_type "sys/types.h sys/socket.h" socklen_t
3436     check_type netdb.h "struct addrinfo"
3437     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3438     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3439     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3440     check_type netinet/in.h "struct sockaddr_in6"
3441     check_type poll.h "struct pollfd"
3442     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3443     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3444     check_type netinet/sctp.h "struct sctp_event_subscribe"
3445     check_func getaddrinfo $network_extralibs
3446     # Prefer arpa/inet.h over winsock2
3447     if check_header arpa/inet.h ; then
3448         check_func closesocket
3449     elif check_header winsock2.h ; then
3450         check_func_headers winsock2.h closesocket -lws2 &&
3451             network_extralibs="-lws2" ||
3452         { check_func_headers winsock2.h closesocket -lws2_32 &&
3453             network_extralibs="-lws2_32"; }
3454         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3455         check_type ws2tcpip.h socklen_t
3456         check_type ws2tcpip.h "struct addrinfo"
3457         check_type ws2tcpip.h "struct group_source_req"
3458         check_type ws2tcpip.h "struct ip_mreq_source"
3459         check_type ws2tcpip.h "struct ipv6_mreq"
3460         check_type winsock2.h "struct pollfd"
3461         check_type ws2tcpip.h "struct sockaddr_in6"
3462         check_type ws2tcpip.h "struct sockaddr_storage"
3463         check_struct winsock2.h "struct sockaddr" sa_len
3464     else
3465         disable network
3466     fi
3467 fi
3468
3469 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3470 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3471
3472 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3473 check_func  fcntl
3474 check_func  fork
3475 check_func  gethrtime
3476 check_func  getopt
3477 check_func  getrusage
3478 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3479 check_func  gettimeofday
3480 check_func  inet_aton $network_extralibs
3481 check_func  isatty
3482 check_func  localtime_r
3483 check_func  ${malloc_prefix}memalign            && enable memalign
3484 check_func  mkstemp
3485 check_func  mmap
3486 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3487 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3488 check_func  setrlimit
3489 check_func  strerror_r
3490 check_func  sched_getaffinity
3491 check_func  sysconf
3492 check_func  sysctl
3493 check_func  usleep
3494 check_func_headers conio.h kbhit
3495 check_func_headers windows.h PeekNamedPipe
3496 check_func_headers io.h setmode
3497 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3498 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3499 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3500 check_func_headers windows.h GetProcessAffinityMask
3501 check_func_headers windows.h GetProcessTimes
3502 check_func_headers windows.h GetSystemTimeAsFileTime
3503 check_func_headers windows.h MapViewOfFile
3504 check_func_headers windows.h Sleep
3505 check_func_headers windows.h VirtualAlloc
3506 check_func_headers glob.h glob
3507
3508 check_header direct.h
3509 check_header dlfcn.h
3510 check_header dxva.h
3511 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3512 check_header io.h
3513 check_header libcrystalhd/libcrystalhd_if.h
3514 check_header malloc.h
3515 check_header poll.h
3516 check_header sys/mman.h
3517 check_header sys/param.h
3518 check_header sys/resource.h
3519 check_header sys/select.h
3520 check_header sys/time.h
3521 check_header termios.h
3522 check_header unistd.h
3523 check_header vdpau/vdpau.h
3524 check_header vdpau/vdpau_x11.h
3525 check_header windows.h
3526 check_header X11/extensions/XvMClib.h
3527 check_header asm/types.h
3528
3529 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3530 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3531
3532 # check for VDA header
3533 if ! disabled vda; then
3534     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3535         enable vda
3536         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3537     fi
3538 fi
3539
3540 if ! disabled w32threads && ! enabled pthreads; then
3541     check_func _beginthreadex && enable w32threads
3542 fi
3543
3544 # check for some common methods of building with pthread support
3545 # do this before the optional library checks as some of them require pthreads
3546 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3547     enable pthreads
3548     if check_func pthread_create; then
3549         :
3550     elif check_func pthread_create -pthread; then
3551         add_cflags -pthread
3552         add_extralibs -pthread
3553     elif check_func pthread_create -pthreads; then
3554         add_cflags -pthreads
3555         add_extralibs -pthreads
3556     elif check_func pthread_create -lpthreadGC2; then
3557         add_extralibs -lpthreadGC2
3558     elif ! check_lib pthread.h pthread_create -lpthread; then
3559         disable pthreads
3560     fi
3561 fi
3562
3563 for thread in $THREADS_LIST; do
3564     if enabled $thread; then
3565         test -n "$thread_type" &&
3566             die "ERROR: Only one thread type must be selected." ||
3567             thread_type="$thread"
3568     fi
3569 done
3570
3571 if enabled pthreads; then
3572   check_func pthread_cancel
3573 fi
3574
3575 check_lib math.h sin -lm && LIBM="-lm"
3576 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3577 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3578
3579 check_mathfunc cbrtf
3580 check_mathfunc exp2
3581 check_mathfunc exp2f
3582 check_mathfunc isinf
3583 check_mathfunc isnan
3584 check_mathfunc llrint
3585 check_mathfunc llrintf
3586 check_mathfunc log2
3587 check_mathfunc log2f
3588 check_mathfunc lrint
3589 check_mathfunc lrintf
3590 check_mathfunc rint
3591 check_mathfunc round
3592 check_mathfunc roundf
3593 check_mathfunc trunc
3594 check_mathfunc truncf
3595
3596 # these are off by default, so fail if requested and not available
3597 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3598 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3599 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3600 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3601 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3602 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3603 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3604 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3605 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3606                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3607                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3608 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3609 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3610 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3611 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"
3612 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3613 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3614 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3615 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3616 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3617 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3618 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3619 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3620 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3621 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3622 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3623 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3624 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3625 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3626 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3627 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3628 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3629     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3630     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3631 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3632 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3633                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3634                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3635 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3636 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3637 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3638 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3639 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3640 enabled libvpx     && {
3641     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3642                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3643     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3644                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3645 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3646                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3647                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3648 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3649 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3650 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3651                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3652                         die "ERROR: openal not found"; } &&
3653                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3654                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3655 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3656                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3657                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3658                         die "ERROR: openssl not found"; }
3659
3660 if enabled gnutls; then
3661     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3662     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3663 fi
3664
3665 # libdc1394 check
3666 if enabled libdc1394; then
3667     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3668         enable libdc1394_2; } ||
3669     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3670         enable libdc1394_1; } ||
3671     die "ERROR: No version of libdc1394 found "
3672 fi
3673
3674 SDL_CONFIG="${cross_prefix}sdl-config"
3675 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3676     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3677     enable sdl &&
3678     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3679 else
3680   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3681     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3682     sdl_libs=$("${SDL_CONFIG}" --libs)
3683     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3684     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3685     enable sdl &&
3686     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3687   fi
3688 fi
3689 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3690
3691 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3692 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3693 perl --version > /dev/null 2>&1 && enable perl || disable perl
3694 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3695
3696 check_header linux/fb.h
3697 check_header linux/videodev.h
3698 check_header linux/videodev2.h
3699 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3700
3701 check_header sys/videoio.h
3702
3703 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3704 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3705 # w32api 3.12 had it defined wrong
3706 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3707
3708 check_type "dshow.h" IBaseFilter
3709
3710 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3711 { check_header dev/bktr/ioctl_meteor.h &&
3712   check_header dev/bktr/ioctl_bt848.h; } ||
3713 { check_header machine/ioctl_meteor.h &&
3714   check_header machine/ioctl_bt848.h; } ||
3715 { check_header dev/video/meteor/ioctl_meteor.h &&
3716   check_header dev/video/bktr/ioctl_bt848.h; } ||
3717 check_header dev/ic/bt8xx.h
3718
3719 check_header sndio.h
3720 if check_struct sys/soundcard.h audio_buf_info bytes; then
3721     enable_safe sys/soundcard.h
3722 else
3723     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3724     #include <sys/soundcard.h>
3725     audio_buf_info abc;
3726 EOF
3727 fi
3728 check_header soundcard.h
3729
3730 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3731
3732 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3733     check_func jack_port_get_latency_range -ljack
3734
3735 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3736
3737 enabled libcdio &&
3738     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3739
3740 enabled x11grab                                           &&
3741 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3742 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3743 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3744
3745 if ! disabled vaapi; then
3746     check_lib va/va.h vaInitialize -lva && {
3747         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3748         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3749     } || disable vaapi
3750 fi
3751
3752 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3753     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3754         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3755 fi
3756
3757 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3758 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3759 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"
3760
3761 # add some useful compiler flags if supported
3762 check_cflags -Wdeclaration-after-statement
3763 check_cflags -Wall
3764 check_cflags -Wno-parentheses
3765 check_cflags -Wno-switch
3766 check_cflags -Wno-format-zero-length
3767 check_cflags -Wdisabled-optimization
3768 check_cflags -Wpointer-arith
3769 check_cflags -Wredundant-decls
3770 check_cflags -Wno-pointer-sign
3771 check_cflags -Wwrite-strings
3772 check_cflags -Wtype-limits
3773 check_cflags -Wundef
3774 check_cflags -Wmissing-prototypes
3775 check_cflags -Wno-pointer-to-int-cast
3776 check_cflags -Wstrict-prototypes
3777 enabled extra_warnings && check_cflags -Winline
3778
3779 # add some linker flags
3780 check_ldflags -Wl,--warn-common
3781 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3782 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3783
3784 enabled xmm_clobber_test &&
3785     check_ldflags -Wl,--wrap,avcodec_open2              \
3786                   -Wl,--wrap,avcodec_decode_audio4      \
3787                   -Wl,--wrap,avcodec_decode_video2      \
3788                   -Wl,--wrap,avcodec_decode_subtitle2   \
3789                   -Wl,--wrap,avcodec_encode_audio2      \
3790                   -Wl,--wrap,avcodec_encode_video       \
3791                   -Wl,--wrap,avcodec_encode_subtitle    \
3792                   -Wl,--wrap,sws_scale ||
3793     disable xmm_clobber_test
3794
3795 echo "X{};" > $TMPV
3796 if test_ldflags -Wl,--version-script,$TMPV; then
3797     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3798     check_cc <<EOF && enable symver_asm_label
3799 void ff_foo(void) __asm__ ("av_foo@VERSION");
3800 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3801 EOF
3802     check_cc <<EOF && enable symver_gnu_asm
3803 __asm__(".symver ff_foo,av_foo@VERSION");
3804 void ff_foo(void) {}
3805 EOF
3806 fi
3807
3808 if [ -n "$optflags" ]; then
3809     add_cflags $optflags
3810 elif enabled small; then
3811     add_cflags $cflags_size
3812 elif enabled optimizations; then
3813     add_cflags $cflags_speed
3814 else
3815     add_cflags $cflags_noopt
3816 fi
3817 check_cflags -fno-math-errno
3818 check_cflags -fno-signed-zeros
3819 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3820 int x;
3821 EOF
3822
3823
3824 if enabled icc; then
3825     # Just warnings, no remarks
3826     check_cflags -w1
3827     # -wd: Disable following warnings
3828     # 144, 167, 556: -Wno-pointer-sign
3829     # 1292: attribute "foo" ignored
3830     # 1419: external declaration in primary source file
3831     # 10006: ignoring unknown option -fno-signed-zeros
3832     # 10148: ignoring unknown option -Wno-parentheses
3833     # 10156: ignoring option '-W'; no argument required
3834     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3835     # 11030: Warning unknown option --as-needed
3836     # 10156: ignoring option '-export'; no argument required
3837     check_ldflags -wd10156,11030
3838     # Allow to compile with optimizations
3839     check_ldflags -march=$cpu
3840     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3841     enable ebp_available
3842     if enabled x86_32; then
3843         icc_version=$($cc -dumpversion)
3844         test ${icc_version%%.*} -ge 11 &&
3845             check_cflags -falign-stack=maintain-16-byte ||
3846             disable aligned_stack
3847     fi
3848 elif enabled ccc; then
3849     # disable some annoying warnings
3850     add_cflags -msg_disable cvtu32to64
3851     add_cflags -msg_disable embedcomment
3852     add_cflags -msg_disable needconstext
3853     add_cflags -msg_disable nomainieee
3854     add_cflags -msg_disable ptrmismatch1
3855     add_cflags -msg_disable unreachcode
3856 elif enabled gcc; then
3857     check_cflags -fno-tree-vectorize
3858     check_cflags -Werror=implicit-function-declaration
3859     check_cflags -Werror=missing-prototypes
3860 elif enabled llvm_gcc; then
3861     check_cflags -mllvm -stack-alignment=16
3862 elif enabled clang; then
3863     check_cflags -mllvm -stack-alignment=16
3864     check_cflags -Qunused-arguments
3865 elif enabled armcc; then
3866     # 2523: use of inline assembler is deprecated
3867     add_cflags -W${armcc_opt},--diag_suppress=2523
3868     add_cflags -W${armcc_opt},--diag_suppress=1207
3869     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3870     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3871     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3872     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3873 elif enabled tms470; then
3874     add_cflags -pds=824 -pds=837
3875 elif enabled pathscale; then
3876     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3877 elif enabled msvc; then
3878     enabled x86_32 && disable aligned_stack
3879 fi
3880
3881 enabled_any $THREADS_LIST      && enable threads
3882
3883 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3884
3885 check_deps $CONFIG_LIST       \
3886            $CONFIG_EXTRA      \
3887            $HAVE_LIST         \
3888            $ALL_COMPONENTS    \
3889            $ALL_TESTS         \
3890
3891
3892 if test $target_os = "haiku"; then
3893     disable memalign
3894     disable posix_memalign
3895 fi
3896
3897 ! enabled_any memalign posix_memalign aligned_malloc &&
3898     enabled_any $need_memalign && enable memalign_hack
3899
3900 # add_dep lib dep
3901 # -> enable ${lib}_deps_${dep}
3902 # -> add $dep to ${lib}_deps only once
3903 add_dep() {
3904     lib=$1
3905     dep=$2
3906     enabled "${lib}_deps_${dep}" && return 0
3907     enable  "${lib}_deps_${dep}"
3908     prepend "${lib}_deps" $dep
3909 }
3910
3911 # merge deps lib components
3912 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3913 merge_deps() {
3914     lib=$1
3915     shift
3916     for comp in $*; do
3917         enabled $comp || continue
3918         eval "dep=\"\$${comp}_deps\""
3919         for d in $dep; do
3920             add_dep $lib $d
3921         done
3922     done
3923 }
3924
3925 merge_deps libavfilter $FILTER_LIST
3926
3927 echo "install prefix            $prefix"
3928 echo "source path               $source_path"
3929 echo "C compiler                $cc"
3930 echo "ARCH                      $arch ($cpu)"
3931 if test "$build_suffix" != ""; then
3932     echo "build suffix              $build_suffix"
3933 fi
3934 if test "$progs_suffix" != ""; then
3935     echo "progs suffix              $progs_suffix"
3936 fi
3937 if test "$extra_version" != ""; then
3938     echo "version string suffix     $extra_version"
3939 fi
3940 echo "big-endian                ${bigendian-no}"
3941 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3942 if enabled x86; then
3943     echo "${yasmexe}                      ${yasm-no}"
3944     echo "MMX enabled               ${mmx-no}"
3945     echo "MMXEXT enabled            ${mmxext-no}"
3946     echo "3DNow! enabled            ${amd3dnow-no}"
3947     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3948     echo "SSE enabled               ${sse-no}"
3949     echo "SSSE3 enabled             ${ssse3-no}"
3950     echo "AVX enabled               ${avx-no}"
3951     echo "FMA4 enabled              ${fma4-no}"
3952     echo "CMOV enabled              ${cmov-no}"
3953     echo "CMOV is fast              ${fast_cmov-no}"
3954     echo "EBX available             ${ebx_available-no}"
3955     echo "EBP available             ${ebp_available-no}"
3956 fi
3957 if enabled arm; then
3958     echo "ARMv5TE enabled           ${armv5te-no}"
3959     echo "ARMv6 enabled             ${armv6-no}"
3960     echo "ARMv6T2 enabled           ${armv6t2-no}"
3961     echo "ARM VFP enabled           ${armvfp-no}"
3962     echo "NEON enabled              ${neon-no}"
3963 fi
3964 if enabled mips; then
3965     echo "MMI enabled               ${mmi-no}"
3966     echo "MIPS FPU enabled          ${mipsfpu-no}"
3967     echo "MIPS32R2 enabled          ${mips32r2-no}"
3968     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3969     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3970 fi
3971 if enabled ppc; then
3972     echo "AltiVec enabled           ${altivec-no}"
3973     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3974     echo "dcbzl available           ${dcbzl-no}"
3975 fi
3976 if enabled sparc; then
3977     echo "VIS enabled               ${vis-no}"
3978 fi
3979 echo "debug symbols             ${debug-no}"
3980 echo "strip symbols             ${stripping-no}"
3981 echo "optimize for size         ${small-no}"
3982 echo "optimizations             ${optimizations-no}"
3983 echo "static                    ${static-no}"
3984 echo "shared                    ${shared-no}"
3985 echo "postprocessing support    ${postproc-no}"
3986 echo "new filter support        ${avfilter-no}"
3987 echo "network support           ${network-no}"
3988 echo "threading support         ${thread_type-no}"
3989 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3990 echo "SDL support               ${sdl-no}"
3991 echo "libdxva2 enabled          ${dxva2-no}"
3992 echo "libva enabled             ${vaapi-no}"
3993 echo "libvdpau enabled          ${vdpau-no}"
3994 echo "AVISynth enabled          ${avisynth-no}"
3995 echo "frei0r enabled            ${frei0r-no}"
3996 echo "gnutls enabled            ${gnutls-no}"
3997 echo "libaacplus enabled        ${libaacplus-no}"
3998 echo "libass enabled            ${libass-no}"
3999 echo "libcaca enabled           ${libcaca-no}"
4000 echo "libcdio support           ${libcdio-no}"
4001 echo "libcelt enabled           ${libcelt-no}"
4002 echo "libdc1394 support         ${libdc1394-no}"
4003 echo "libfaac enabled           ${libfaac-no}"
4004 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4005 echo "libgsm enabled            ${libgsm-no}"
4006 echo "libiec61883 support       ${libiec61883-no}"
4007 echo "libilbc enabled           ${libilbc-no}"
4008 echo "libmodplug enabled        ${libmodplug-no}"
4009 echo "libmp3lame enabled        ${libmp3lame-no}"
4010 echo "libnut enabled            ${libnut-no}"
4011 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4012 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4013 echo "libopencv support         ${libopencv-no}"
4014 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4015 echo "libopus enabled           ${libopus-no}"
4016 echo "libpulse enabled          ${libpulse-no}"
4017 echo "librtmp enabled           ${librtmp-no}"
4018 echo "libschroedinger enabled   ${libschroedinger-no}"
4019 echo "libspeex enabled          ${libspeex-no}"
4020 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4021 echo "libtheora enabled         ${libtheora-no}"
4022 echo "libtwolame enabled        ${libtwolame-no}"
4023 echo "libutvideo enabled        ${libutvideo-no}"
4024 echo "libv4l2 enabled           ${libv4l2-no}"
4025 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4026 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4027 echo "libvorbis enabled         ${libvorbis-no}"
4028 echo "libvpx enabled            ${libvpx-no}"
4029 echo "libx264 enabled           ${libx264-no}"
4030 echo "libxavs enabled           ${libxavs-no}"
4031 echo "libxvid enabled           ${libxvid-no}"
4032 echo "openal enabled            ${openal-no}"
4033 echo "openssl enabled           ${openssl-no}"
4034 echo "zlib enabled              ${zlib-no}"
4035 echo "bzlib enabled             ${bzlib-no}"
4036 echo "texi2html enabled         ${texi2html-no}"
4037 echo "perl enabled              ${perl-no}"
4038 echo "pod2man enabled           ${pod2man-no}"
4039 echo "makeinfo enabled          ${makeinfo-no}"
4040 test -n "$random_seed" &&
4041     echo "random seed               ${random_seed}"
4042 echo
4043
4044 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4045     echo "Enabled ${type}s:"
4046     eval list=\$$(toupper $type)_LIST
4047     print_enabled '_*' $list | sort | pr -r -3 -t
4048     echo
4049 done
4050
4051 license="LGPL version 2.1 or later"
4052 if enabled nonfree; then
4053     license="nonfree and unredistributable"
4054 elif enabled gplv3; then
4055     license="GPL version 3 or later"
4056 elif enabled lgplv3; then
4057     license="LGPL version 3 or later"
4058 elif enabled gpl; then
4059     license="GPL version 2 or later"
4060 fi
4061
4062 echo "License: $license"
4063
4064 echo "Creating config.mak and config.h..."
4065
4066 test -e Makefile || $ln_s "$source_path/Makefile" .
4067
4068 enabled stripping || strip="echo skipping strip"
4069
4070 config_files="$TMPH config.mak"
4071
4072 cat > config.mak <<EOF
4073 # Automatically generated by configure - do not modify!
4074 ifndef FFMPEG_CONFIG_MAK
4075 FFMPEG_CONFIG_MAK=1
4076 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4077 prefix=$prefix
4078 LIBDIR=\$(DESTDIR)$libdir
4079 SHLIBDIR=\$(DESTDIR)$shlibdir
4080 INCDIR=\$(DESTDIR)$incdir
4081 BINDIR=\$(DESTDIR)$bindir
4082 DATADIR=\$(DESTDIR)$datadir
4083 MANDIR=\$(DESTDIR)$mandir
4084 SRC_PATH=$source_path
4085 ifndef MAIN_MAKEFILE
4086 SRC_PATH:=\$(SRC_PATH:.%=..%)
4087 endif
4088 CC_IDENT=$cc_ident
4089 ARCH=$arch
4090 CC=$cc
4091 CXX=$cxx
4092 AS=$as
4093 LD=$ld
4094 DEPCC=$dep_cc
4095 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4096 DEPAS=$as
4097 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4098 YASM=$yasmexe
4099 DEPYASM=$yasmexe
4100 AR=$ar
4101 RANLIB=$ranlib
4102 CP=cp -p
4103 LN_S=$ln_s
4104 STRIP=$strip
4105 CPPFLAGS=$CPPFLAGS
4106 CFLAGS=$CFLAGS
4107 CXXFLAGS=$CXXFLAGS
4108 ASFLAGS=$ASFLAGS
4109 AS_C=$AS_C
4110 AS_O=$AS_O
4111 CC_C=$CC_C
4112 CC_O=$CC_O
4113 CXX_C=$CXX_C
4114 CXX_O=$CXX_O
4115 LD_O=$LD_O
4116 LD_LIB=$LD_LIB
4117 LD_PATH=$LD_PATH
4118 DLLTOOL=$dlltool
4119 LDFLAGS=$LDFLAGS
4120 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4121 SHFLAGS=$SHFLAGS
4122 YASMFLAGS=$YASMFLAGS
4123 BUILDSUF=$build_suffix
4124 PROGSSUF=$progs_suffix
4125 FULLNAME=$FULLNAME
4126 LIBPREF=$LIBPREF
4127 LIBSUF=$LIBSUF
4128 LIBNAME=$LIBNAME
4129 SLIBPREF=$SLIBPREF
4130 SLIBSUF=$SLIBSUF
4131 EXESUF=$EXESUF
4132 EXTRA_VERSION=$extra_version
4133 CCDEP=$CCDEP
4134 CXXDEP=$CXXDEP
4135 CCDEP_FLAGS=$CCDEP_FLAGS
4136 ASDEP=$ASDEP
4137 ASDEP_FLAGS=$ASDEP_FLAGS
4138 CC_DEPFLAGS=$CC_DEPFLAGS
4139 AS_DEPFLAGS=$AS_DEPFLAGS
4140 HOSTCC=$host_cc
4141 HOSTLD=$host_ld
4142 HOSTCFLAGS=$host_cflags
4143 HOSTEXESUF=$HOSTEXESUF
4144 HOSTLDFLAGS=$host_ldflags
4145 HOSTLIBS=$host_libs
4146 DEPHOSTCC=$host_cc
4147 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4148 HOSTCCDEP=$HOSTCCDEP
4149 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4150 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4151 HOSTCC_C=$HOSTCC_C
4152 HOSTCC_O=$HOSTCC_O
4153 HOSTLD_O=$HOSTLD_O
4154 TARGET_EXEC=$target_exec
4155 TARGET_PATH=$target_path
4156 LIBS-ffplay=$sdl_libs
4157 CFLAGS-ffplay=$sdl_cflags
4158 ZLIB=$($ldflags_filter -lz)
4159 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4160 EXTRALIBS=$extralibs
4161 INSTALL=$install
4162 LIBTARGET=${LIBTARGET}
4163 SLIBNAME=${SLIBNAME}
4164 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4165 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4166 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4167 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4168 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4169 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4170 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4171 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4172 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4173 NOREDZONE_FLAGS=$noredzone_flags
4174 EOF
4175
4176 get_version(){
4177     lcname=$1
4178     name=$(toupper $lcname)
4179     file=$source_path/$lcname/version.h
4180     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4181     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4182     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4183     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4184 }
4185
4186 get_version_old(){
4187     name=$1
4188     file=$source_path/$2
4189 # This condition will be removed when we stop supporting old libpostproc versions
4190 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4191     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4192     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4193 fi
4194     lcname=$(tolower $name)
4195     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4196     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4197 }
4198
4199 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4200 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4201
4202 get_version libavcodec
4203 get_version libavdevice
4204 get_version libavfilter
4205 get_version libavformat
4206 get_version libavresample
4207 get_version libavutil
4208 get_version libswscale
4209
4210 cat > $TMPH <<EOF
4211 /* Automatically generated by configure - do not modify! */
4212 #ifndef FFMPEG_CONFIG_H
4213 #define FFMPEG_CONFIG_H
4214 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4215 #define FFMPEG_LICENSE "$(c_escape $license)"
4216 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4217 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4218 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4219 #define av_restrict $_restrict
4220 #define EXTERN_PREFIX "${extern_prefix}"
4221 #define EXTERN_ASM ${extern_prefix}
4222 #define SLIBSUF "$SLIBSUF"
4223 #define HAVE_MMX2 HAVE_MMXEXT
4224 EOF
4225
4226 test -n "$assert_level" &&
4227     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4228
4229 test -n "$malloc_prefix" &&
4230     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4231
4232 if enabled yasm; then
4233     append config_files $TMPASM
4234     printf '' >$TMPASM
4235 fi
4236
4237 print_config ARCH_   "$config_files" $ARCH_LIST
4238 print_config HAVE_   "$config_files" $HAVE_LIST
4239 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4240                                      $CONFIG_EXTRA      \
4241                                      $ALL_COMPONENTS    \
4242
4243 cat >>config.mak <<EOF
4244 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4245 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4246 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4247 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4248 EOF
4249
4250 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4251 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4252
4253 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4254 cp_if_changed $TMPH config.h
4255 touch .config
4256
4257 enabled yasm && cp_if_changed $TMPASM config.asm
4258
4259 cat > $TMPH <<EOF
4260 /* Generated by ffconf */
4261 #ifndef AVUTIL_AVCONFIG_H
4262 #define AVUTIL_AVCONFIG_H
4263 EOF
4264
4265 test "$postproc_version" != current && cat >> $TMPH <<EOF
4266 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4267 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4268 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4269 EOF
4270
4271 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4272
4273 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4274
4275 cp_if_changed $TMPH libavutil/avconfig.h
4276
4277 test -n "$WARNINGS" && printf "\n$WARNINGS"
4278
4279 # build pkg-config files
4280
4281 pkgconfig_generate(){
4282     name=$1
4283     shortname=${name#lib}${build_suffix}
4284     comment=$2
4285     version=$3
4286     libs=$4
4287     requires=$5
4288     enabled ${name#lib} || return 0
4289     mkdir -p $name
4290     cat <<EOF > $name/$name.pc
4291 prefix=$prefix
4292 exec_prefix=\${prefix}
4293 libdir=$libdir
4294 includedir=$incdir
4295
4296 Name: $name
4297 Description: $comment
4298 Version: $version
4299 Requires: $(enabled shared || echo $requires)
4300 Requires.private: $(enabled shared && echo $requires)
4301 Conflicts:
4302 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4303 Libs.private: $(enabled shared && echo $libs)
4304 Cflags: -I\${includedir}
4305 EOF
4306
4307 mkdir -p doc/examples/pc-uninstalled
4308 includedir=${source_path}
4309 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4310     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4311 prefix=
4312 exec_prefix=
4313 libdir=\${pcfiledir}/../../../$name
4314 includedir=${includedir}
4315
4316 Name: $name
4317 Description: $comment
4318 Version: $version
4319 Requires: $requires
4320 Conflicts:
4321 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4322 Cflags: -I\${includedir}
4323 EOF
4324 }
4325
4326 libavfilter_pc_deps=""
4327 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4328 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4329 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4330 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4331 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4332 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4333
4334 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4335 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4336
4337 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4338 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4339 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4340 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4341 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4342 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4343 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4344 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4345 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"