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 Component options:
103   --disable-doc            do not build documentation
104   --disable-ffmpeg         disable ffmpeg build
105   --disable-ffplay         disable ffplay build
106   --disable-ffprobe        disable ffprobe build
107   --disable-ffserver       disable ffserver build
108   --disable-avdevice       disable libavdevice build
109   --disable-avcodec        disable libavcodec build
110   --disable-avformat       disable libavformat build
111   --disable-swresample     disable libswresample build
112   --disable-swscale        disable libswscale build
113   --disable-postproc       disable libpostproc build
114   --disable-avfilter       disable libavfilter build
115   --enable-avresample      enable libavresample build [no]
116   --disable-pthreads       disable pthreads [auto]
117   --disable-w32threads     disable Win32 threads [auto]
118   --disable-os2threads     disable OS/2 threads [auto]
119   --enable-x11grab         enable X11 grabbing [no]
120   --disable-network        disable network support [no]
121   --disable-dct            disable DCT code
122   --disable-dwt            disable DWT code
123   --disable-lsp            disable LSP code
124   --disable-mdct           disable MDCT code
125   --disable-rdft           disable RDFT code
126   --disable-fft            disable FFT code
127   --enable-dxva2           enable DXVA2 code
128   --enable-vaapi           enable VAAPI code [autodetect]
129   --enable-vda             enable VDA code   [autodetect]
130   --enable-vdpau           enable VDPAU code [autodetect]
131
132 Individual component options:
133   --disable-everything     disable all components listed below
134   --disable-encoder=NAME   disable encoder NAME
135   --enable-encoder=NAME    enable encoder NAME
136   --disable-encoders       disable all encoders
137   --disable-decoder=NAME   disable decoder NAME
138   --enable-decoder=NAME    enable decoder NAME
139   --disable-decoders       disable all decoders
140   --disable-hwaccel=NAME   disable hwaccel NAME
141   --enable-hwaccel=NAME    enable hwaccel NAME
142   --disable-hwaccels       disable all hwaccels
143   --disable-muxer=NAME     disable muxer NAME
144   --enable-muxer=NAME      enable muxer NAME
145   --disable-muxers         disable all muxers
146   --disable-demuxer=NAME   disable demuxer NAME
147   --enable-demuxer=NAME    enable demuxer NAME
148   --disable-demuxers       disable all demuxers
149   --enable-parser=NAME     enable parser NAME
150   --disable-parser=NAME    disable parser NAME
151   --disable-parsers        disable all parsers
152   --enable-bsf=NAME        enable bitstream filter NAME
153   --disable-bsf=NAME       disable bitstream filter NAME
154   --disable-bsfs           disable all bitstream filters
155   --enable-protocol=NAME   enable protocol NAME
156   --disable-protocol=NAME  disable protocol NAME
157   --disable-protocols      disable all protocols
158   --enable-indev=NAME      enable input device NAME
159   --disable-indev=NAME     disable input device NAME
160   --disable-indevs         disable input devices
161   --enable-outdev=NAME     enable output device NAME
162   --disable-outdev=NAME    disable output device NAME
163   --disable-outdevs        disable output devices
164   --disable-devices        disable all devices
165   --enable-filter=NAME     enable filter NAME
166   --disable-filter=NAME    disable filter NAME
167   --disable-filters        disable all filters
168
169 External library support:
170   --enable-avisynth        enable reading of AVISynth script files [no]
171   --enable-bzlib           enable bzlib [autodetect]
172   --enable-fontconfig      enable fontconfig
173   --enable-frei0r          enable frei0r video filtering
174   --enable-gnutls          enable gnutls [no]
175   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
176   --enable-libass          enable libass subtitles rendering [no]
177   --enable-libbluray       enable BluRay reading using libbluray [no]
178   --enable-libcaca         enable textual display using libcaca
179   --enable-libcelt         enable CELT decoding via libcelt [no]
180   --enable-libcdio         enable audio CD grabbing with libcdio
181   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
182                            and libraw1394 [no]
183   --enable-libfaac         enable AAC encoding via libfaac [no]
184   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
185   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
186   --enable-libfreetype     enable libfreetype [no]
187   --enable-libgsm          enable GSM de/encoding via libgsm [no]
188   --enable-libiec61883     enable iec61883 via libiec61883 [no]
189   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
190   --enable-libmodplug      enable ModPlug via libmodplug [no]
191   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
192   --enable-libnut          enable NUT (de)muxing via libnut,
193                            native (de)muxer exists [no]
194   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
195   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
196   --enable-libopencv       enable video filtering via libopencv [no]
197   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
198   --enable-libopus         enable Opus decoding via libopus [no]
199   --enable-libpulse        enable Pulseaudio input via libpulse [no]
200   --enable-librtmp         enable RTMP[E] support via librtmp [no]
201   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
202   --enable-libspeex        enable Speex de/encoding via libspeex [no]
203   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
204   --enable-libtheora       enable Theora encoding via libtheora [no]
205   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
206   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
207   --enable-libv4l2         enable libv4l2/v4l-utils [no]
208   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
209   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
210   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
211                            native implementation exists [no]
212   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
213   --enable-libx264         enable H.264 encoding via x264 [no]
214   --enable-libxavs         enable AVS encoding via xavs [no]
215   --enable-libxvid         enable Xvid encoding via xvidcore,
216                            native MPEG-4/Xvid encoder exists [no]
217   --enable-openal          enable OpenAL 1.1 capture support [no]
218   --enable-openssl         enable openssl [no]
219   --enable-zlib            enable zlib [autodetect]
220
221 Advanced options (experts only):
222   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
223   --enable-cross-compile   assume a cross-compiler is used
224   --sysroot=PATH           root of cross-build tree
225   --sysinclude=PATH        location of cross-build system headers
226   --target-os=OS           compiler targets OS [$target_os]
227   --target-exec=CMD        command to run executables on target
228   --target-path=DIR        path to view of build directory on target
229   --nm=NM                  use nm tool NM [$nm_default]
230   --ar=AR                  use archive tool AR [$ar_default]
231   --as=AS                  use assembler AS [$as_default]
232   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
233   --cc=CC                  use C compiler CC [$cc_default]
234   --cxx=CXX                use C compiler CXX [$cxx_default]
235   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
236   --ld=LD                  use linker LD [$ld_default]
237   --host-cc=HOSTCC         use host C compiler HOSTCC
238   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
239   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
240   --host-libs=HLIBS        use libs HLIBS when linking for host
241   --host-os=OS             compiler host OS [$target_os]
242   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
243   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
244   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
245   --extra-libs=ELIBS       add ELIBS [$ELIBS]
246   --extra-version=STRING   version string suffix []
247   --optflags=OPTFLAGS      override optimization-related compiler flags
248   --build-suffix=SUFFIX    library name suffix []
249   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
250   --progs-suffix=SUFFIX    program name suffix []
251   --arch=ARCH              select architecture [$arch]
252   --cpu=CPU                select the minimum required CPU (affects
253                            instruction selection, may crash on older CPUs)
254   --enable-pic             build position-independent code
255   --enable-sram            allow use of on-chip SRAM
256   --enable-thumb           compile for Thumb instruction set
257   --disable-symver         disable symbol versioning
258   --disable-fastdiv        disable table-based division
259   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
260   --disable-safe-bitstream-reader
261                            disable buffer boundary checking in bitreaders
262                            (faster, but may crash)
263   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
264
265 Optimization options (experts only):
266   --disable-asm            disable all assembler optimizations
267   --disable-altivec        disable AltiVec optimizations
268   --disable-amd3dnow       disable 3DNow! optimizations
269   --disable-amd3dnowext    disable 3DNow! extended optimizations
270   --disable-mmx            disable MMX optimizations
271   --disable-mmxext         disable MMXEXT optimizations
272   --disable-sse            disable SSE optimizations
273   --disable-ssse3          disable SSSE3 optimizations
274   --disable-avx            disable AVX optimizations
275   --disable-fma4           disable FMA4 optimizations
276   --disable-armv5te        disable armv5te optimizations
277   --disable-armv6          disable armv6 optimizations
278   --disable-armv6t2        disable armv6t2 optimizations
279   --disable-armvfp         disable ARM VFP optimizations
280   --disable-mmi            disable MMI optimizations
281   --disable-neon           disable NEON optimizations
282   --disable-vis            disable VIS optimizations
283   --disable-yasm           disable use of yasm assembler
284   --disable-mips32r2       disable MIPS32R2 optimizations
285   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
286   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
287   --disable-mipsfpu        disable floating point MIPS optimizations
288   --disable-fast-unaligned consider unaligned accesses slow
289   --postproc-version=V     build libpostproc version V.
290                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
291
292 Developer options (useful when working on FFmpeg itself):
293   --enable-coverage        build with test coverage instrumentation
294   --disable-debug          disable debugging symbols
295   --enable-debug=LEVEL     set the debug level [$debuglevel]
296   --disable-optimizations  disable compiler optimizations
297   --enable-extra-warnings  enable more compiler warnings
298   --disable-stripping      disable stripping of executables and shared libraries
299   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
300                            2 causes a slowdown at runtime.
301   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
302   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
303                            leaks and errors, using the specified valgrind binary.
304                            Cannot be combined with --target-exec
305   --samples=PATH           location of test samples for FATE, if not set use
306                            \$FATE_SAMPLES at make invocation time.
307   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
308                            should be used only for debugging purposes)
309   --enable-random          randomly enable/disable components
310   --disable-random
311   --enable-random=LIST     randomly enable/disable specific components or
312   --disable-random=LIST    component groups. LIST is a comma-separated list
313                            of NAME[:PROB] entries where NAME is a component
314                            (group) and PROB the probability associated with
315                            NAME (default 0.5).
316   --random-seed=VALUE      seed value for --enable/disable-random
317
318 NOTE: Object files are built at the place where configure is launched.
319 EOF
320   exit 0
321 }
322
323 quotes='""'
324
325 log(){
326     echo "$@" >> $logfile
327 }
328
329 log_file(){
330     log BEGIN $1
331     pr -n -t $1 >> $logfile
332     log END $1
333 }
334
335 echolog(){
336     log "$@"
337     echo "$@"
338 }
339
340 warn(){
341     log "WARNING: $*"
342     WARNINGS="${WARNINGS}WARNING: $*\n"
343 }
344
345 die(){
346     echolog "$@"
347     cat <<EOF
348
349 If you think configure made a mistake, make sure you are using the latest
350 version from Git.  If the latest version fails, report the problem to the
351 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
352 EOF
353     if disabled logging; then
354         cat <<EOF
355 Rerun configure with logging enabled (do not use --disable-logging), and
356 include the log this produces with your report.
357 EOF
358     else
359 cat <<EOF
360 Include the log file "$logfile" produced by configure as this will help
361 solving the problem.
362 EOF
363     fi
364     exit 1
365 }
366
367 # Avoid locale weirdness, besides we really just want to translate ASCII.
368 toupper(){
369     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
370 }
371
372 tolower(){
373     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
374 }
375
376 c_escape(){
377     echo "$*" | sed 's/["\\]/\\\0/g'
378 }
379
380 sh_quote(){
381     v=$(echo "$1" | sed "s/'/'\\\\''/g")
382     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
383     echo "$v"
384 }
385
386 cleanws(){
387     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
388 }
389
390 filter(){
391     pat=$1
392     shift
393     for v; do
394         eval "case $v in $pat) echo $v ;; esac"
395     done
396 }
397
398 filter_out(){
399     pat=$1
400     shift
401     for v; do
402         eval "case $v in $pat) ;; *) echo $v ;; esac"
403     done
404 }
405
406 map(){
407     m=$1
408     shift
409     for v; do eval $m; done
410 }
411
412 set_all(){
413     value=$1
414     shift
415     for var in $*; do
416         eval $var=$value
417     done
418 }
419
420 set_weak(){
421     value=$1
422     shift
423     for var; do
424         eval : \${$var:=$value}
425     done
426 }
427
428 set_safe(){
429     var=$1
430     shift
431     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
432 }
433
434 get_safe(){
435     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
436 }
437
438 pushvar(){
439     for var in $*; do
440         eval level=\${${var}_level:=0}
441         eval ${var}_${level}="\$$var"
442         eval ${var}_level=$(($level+1))
443     done
444 }
445
446 popvar(){
447     for var in $*; do
448         eval level=\${${var}_level:-0}
449         test $level = 0 && continue
450         eval level=$(($level-1))
451         eval $var="\${${var}_${level}}"
452         eval ${var}_level=$level
453         eval unset ${var}_${level}
454     done
455 }
456
457 enable(){
458     set_all yes $*
459 }
460
461 disable(){
462     set_all no $*
463 }
464
465 enable_weak(){
466     set_weak yes $*
467 }
468
469 disable_weak(){
470     set_weak no $*
471 }
472
473 enable_safe(){
474     for var; do
475         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
476     done
477 }
478
479 disable_safe(){
480     for var; do
481         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
482     done
483 }
484
485 do_enable_deep(){
486     for var; do
487         enabled $var && continue
488         eval sel="\$${var}_select"
489         eval sgs="\$${var}_suggest"
490         pushvar var sgs
491         enable_deep $sel
492         popvar sgs
493         enable_deep_weak $sgs
494         popvar var
495     done
496 }
497
498 enable_deep(){
499     do_enable_deep $*
500     enable $*
501 }
502
503 enable_deep_weak(){
504     do_enable_deep $*
505     enable_weak $*
506 }
507
508 enabled(){
509     test "${1#!}" = "$1" && op== || op=!=
510     eval test "x\$${1#!}" $op "xyes"
511 }
512
513 disabled(){
514     test "${1#!}" = "$1" && op== || op=!=
515     eval test "x\$${1#!}" $op "xno"
516 }
517
518 enabled_all(){
519     for opt; do
520         enabled $opt || return 1
521     done
522 }
523
524 disabled_all(){
525     for opt; do
526         disabled $opt || return 1
527     done
528 }
529
530 enabled_any(){
531     for opt; do
532         enabled $opt && return 0
533     done
534 }
535
536 disabled_any(){
537     for opt; do
538         disabled $opt && return 0
539     done
540     return 1
541 }
542
543 set_default(){
544     for opt; do
545         eval : \${$opt:=\$${opt}_default}
546     done
547 }
548
549 is_in(){
550     value=$1
551     shift
552     for var in $*; do
553         [ $var = $value ] && return 0
554     done
555     return 1
556 }
557
558 check_deps(){
559     for cfg; do
560         cfg="${cfg#!}"
561         enabled ${cfg}_checking && die "Circular dependency for $cfg."
562         disabled ${cfg}_checking && continue
563         enable ${cfg}_checking
564
565         eval dep_all="\$${cfg}_deps"
566         eval dep_any="\$${cfg}_deps_any"
567         eval dep_sel="\$${cfg}_select"
568         eval dep_sgs="\$${cfg}_suggest"
569         eval dep_ifa="\$${cfg}_if"
570         eval dep_ifn="\$${cfg}_if_any"
571
572         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
573         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
574         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
575
576         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
577         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
578         enabled_all  $dep_all || disable $cfg
579         enabled_any  $dep_any || disable $cfg
580         disabled_any $dep_sel && disable $cfg
581
582         if enabled $cfg; then
583             eval dep_extralibs="\$${cfg}_extralibs"
584             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
585             enable_deep $dep_sel
586             enable_deep_weak $dep_sgs
587         fi
588
589         disable ${cfg}_checking
590     done
591 }
592
593 print_config_h(){
594     enabled $1 && v=1 || v=0
595     echo "#define $2 $v"
596 }
597
598 print_config_mak(){
599     enabled $1 && v= || v=!
600     echo "$v$2=yes"
601 }
602
603 print_config_asm(){
604     enabled $1 && v=1 || v=0
605     echo "%define $2 $v"
606 }
607
608 print_config(){
609     pfx=$1
610     files=$2
611     shift 2
612     for cfg; do
613         ucname="$(toupper $cfg)"
614         for f in $files; do
615             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
616         done
617     done
618 }
619
620 print_enabled(){
621     test "$1" = -n && end=" " && shift || end="\n"
622     suf=$1
623     shift
624     for v; do
625         enabled $v && printf "%s$end" ${v%$suf};
626     done
627 }
628
629 append(){
630     var=$1
631     shift
632     eval "$var=\"\$$var $*\""
633 }
634
635 prepend(){
636     var=$1
637     shift
638     eval "$var=\"$* \$$var\""
639 }
640
641 add_cppflags(){
642     append CPPFLAGS "$@"
643 }
644
645 add_cflags(){
646     append CFLAGS $($cflags_filter "$@")
647 }
648
649 add_cxxflags(){
650     append CXXFLAGS $($cflags_filter "$@")
651 }
652
653 add_asflags(){
654     append ASFLAGS $($asflags_filter "$@")
655 }
656
657 add_ldflags(){
658     append LDFLAGS $($ldflags_filter "$@")
659 }
660
661 add_extralibs(){
662     prepend extralibs $($ldflags_filter "$@")
663 }
664
665 add_host_cflags(){
666     append host_cflags $($host_cflags_filter "$@")
667 }
668
669 add_host_ldflags(){
670     append host_ldflags $($host_ldflags_filter "$@")
671 }
672
673 check_cmd(){
674     log "$@"
675     "$@" >> $logfile 2>&1
676 }
677
678 cc_o(){
679     eval printf '%s\\n' $CC_O
680 }
681
682 cc_e(){
683     eval printf '%s\\n' $CC_E
684 }
685
686 check_cc(){
687     log check_cc "$@"
688     cat > $TMPC
689     log_file $TMPC
690     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
691 }
692
693 check_cxx(){
694     log check_cxx "$@"
695     cat > $TMPCPP
696     log_file $TMPCPP
697     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
698 }
699
700 check_cpp(){
701     log check_cpp "$@"
702     cat > $TMPC
703     log_file $TMPC
704     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
705 }
706
707 check_as(){
708     log check_as "$@"
709     cat > $TMPC
710     log_file $TMPC
711     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C -o $TMPO $TMPC
712 }
713
714 check_inline_asm(){
715     log check_inline_asm "$@"
716     name="$1"
717     code="$2"
718     shift 2
719     disable $name
720     check_as "$@" <<EOF && enable $name
721 void foo(void){ __asm__ volatile($code); }
722 EOF
723 }
724
725 check_yasm(){
726     log check_yasm "$@"
727     echo "$1" > $TMPS
728     log_file $TMPS
729     shift 1
730     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
731 }
732
733 check_ld(){
734     log check_ld "$@"
735     type=$1
736     shift 1
737     flags=''
738     libs=''
739     for f; do
740         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
741     done
742     check_$type $($cflags_filter $flags) || return
743     flags=$($ldflags_filter $flags)
744     libs=$($ldflags_filter $libs)
745     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
746 }
747
748 check_code(){
749     log check_code "$@"
750     check=$1
751     headers=$2
752     code=$3
753     shift 3
754     {
755         for hdr in $headers; do
756             echo "#include <$hdr>"
757         done
758         echo "int main(void) { $code; return 0; }"
759     } | check_$check "$@"
760 }
761
762 check_cppflags(){
763     log check_cppflags "$@"
764     check_cc "$@" <<EOF && append CPPFLAGS "$@"
765 int x;
766 EOF
767 }
768
769 check_cflags(){
770     log check_cflags "$@"
771     set -- $($cflags_filter "$@")
772     check_cc "$@" <<EOF && append CFLAGS "$@"
773 int x;
774 EOF
775 }
776
777 check_cxxflags(){
778     log check_cxxflags "$@"
779     set -- $($cflags_filter "$@")
780     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
781 int x;
782 EOF
783 }
784
785 test_ldflags(){
786     log test_ldflags "$@"
787     check_ld "cc" "$@" <<EOF
788 int main(void){ return 0; }
789 EOF
790 }
791
792 check_ldflags(){
793     log check_ldflags "$@"
794     test_ldflags "$@" && add_ldflags "$@"
795 }
796
797 check_header(){
798     log check_header "$@"
799     header=$1
800     shift
801     disable_safe $header
802     check_cpp "$@" <<EOF && enable_safe $header
803 #include <$header>
804 int x;
805 EOF
806 }
807
808 check_func(){
809     log check_func "$@"
810     func=$1
811     shift
812     disable $func
813     check_ld "cc" "$@" <<EOF && enable $func
814 extern int $func();
815 int main(void){ $func(); }
816 EOF
817 }
818
819 check_mathfunc(){
820     log check_mathfunc "$@"
821     func=$1
822     shift
823     disable $func
824     check_ld "cc" "$@" <<EOF && enable $func
825 #include <math.h>
826 float foo(float f) { return $func(f); }
827 int main(void){ return (int) foo; }
828 EOF
829 }
830
831 check_func_headers(){
832     log check_func_headers "$@"
833     headers=$1
834     funcs=$2
835     shift 2
836     {
837         for hdr in $headers; do
838             echo "#include <$hdr>"
839         done
840         for func in $funcs; do
841             echo "long check_$func(void) { return (long) $func; }"
842         done
843         echo "int main(void) { return 0; }"
844     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
845 }
846
847 check_class_headers_cpp(){
848     log check_class_headers_cpp "$@"
849     headers=$1
850     classes=$2
851     shift 2
852     {
853         for hdr in $headers; do
854             echo "#include <$hdr>"
855         done
856         echo "int main(void) { "
857         i=1
858         for class in $classes; do
859             echo "$class obj$i;"
860             i=$(expr $i + 1)
861         done
862         echo "return 0; }"
863     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
864 }
865
866 check_cpp_condition(){
867     log check_cpp_condition "$@"
868     header=$1
869     condition=$2
870     shift 2
871     check_cpp "$@" <<EOF
872 #include <$header>
873 #if !($condition)
874 #error "unsatisfied condition: $condition"
875 #endif
876 EOF
877 }
878
879 check_lib(){
880     log check_lib "$@"
881     header="$1"
882     func="$2"
883     shift 2
884     check_header $header && check_func $func "$@" && add_extralibs "$@"
885 }
886
887 check_lib2(){
888     log check_lib2 "$@"
889     headers="$1"
890     funcs="$2"
891     shift 2
892     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
893 }
894
895 check_lib_cpp(){
896     log check_lib_cpp "$@"
897     headers="$1"
898     classes="$2"
899     shift 2
900     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
901 }
902
903 check_pkg_config(){
904     log check_pkg_config "$@"
905     pkg="$1"
906     headers="$2"
907     funcs="$3"
908     shift 3
909     $pkg_config --exists $pkg 2>/dev/null || return
910     pkg_cflags=$($pkg_config --cflags $pkg)
911     pkg_libs=$($pkg_config --libs $pkg)
912     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
913         set_safe ${pkg}_cflags $pkg_cflags   &&
914         set_safe ${pkg}_libs   $pkg_libs
915 }
916
917 check_exec(){
918     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
919 }
920
921 check_exec_crash(){
922     code=$(cat)
923
924     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
925     # are safe but may not be available everywhere.  Thus we use
926     # raise(SIGTERM) instead.  The check is run in a subshell so we
927     # can redirect the "Terminated" message from the shell.  SIGBUS
928     # is not defined by standard C so it is used conditionally.
929
930     (check_exec "$@") >> $logfile 2>&1 <<EOF
931 #include <signal.h>
932 static void sighandler(int sig){
933     raise(SIGTERM);
934 }
935 int func(void){
936     $code
937 }
938 int (*func_ptr)(void) = func;
939 int main(void){
940     signal(SIGILL, sighandler);
941     signal(SIGFPE, sighandler);
942     signal(SIGSEGV, sighandler);
943 #ifdef SIGBUS
944     signal(SIGBUS, sighandler);
945 #endif
946     return func_ptr();
947 }
948 EOF
949 }
950
951 check_type(){
952     log check_type "$@"
953     headers=$1
954     type=$2
955     shift 2
956     disable_safe "$type"
957     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
958 }
959
960 check_struct(){
961     log check_type "$@"
962     headers=$1
963     struct=$2
964     member=$3
965     shift 3
966     disable_safe "${struct}_${member}"
967     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
968         enable_safe "${struct}_${member}"
969 }
970
971 require(){
972     name="$1"
973     header="$2"
974     func="$3"
975     shift 3
976     check_lib $header $func "$@" || die "ERROR: $name not found"
977 }
978
979 require2(){
980     name="$1"
981     headers="$2"
982     func="$3"
983     shift 3
984     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
985 }
986
987 require_cpp(){
988     name="$1"
989     headers="$2"
990     classes="$3"
991     shift 3
992     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
993 }
994
995 require_pkg_config(){
996     pkg="$1"
997     check_pkg_config "$@" || die "ERROR: $pkg not found"
998     add_cflags    $(get_safe ${pkg}_cflags)
999     add_extralibs $(get_safe ${pkg}_libs)
1000 }
1001
1002 check_host_cc(){
1003     log check_host_cc "$@"
1004     cat > $TMPC
1005     log_file $TMPC
1006     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
1007 }
1008
1009 check_host_cflags(){
1010     log check_host_cflags "$@"
1011     set -- $($host_cflags_filter "$@")
1012     check_host_cc "$@" <<EOF && append host_cflags "$@"
1013 int x;
1014 EOF
1015 }
1016
1017 apply(){
1018     file=$1
1019     shift
1020     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1021 }
1022
1023 cp_if_changed(){
1024     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1025     mkdir -p "$(dirname $2)"
1026     cp -f "$1" "$2"
1027 }
1028
1029 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1030 # system-dependent things.
1031
1032 COMPONENT_LIST="
1033     bsfs
1034     decoders
1035     demuxers
1036     encoders
1037     filters
1038     hwaccels
1039     indevs
1040     muxers
1041     outdevs
1042     parsers
1043     protocols
1044 "
1045
1046 PROGRAM_LIST="
1047     ffplay
1048     ffprobe
1049     ffserver
1050     ffmpeg
1051 "
1052
1053 CONFIG_LIST="
1054     $COMPONENT_LIST
1055     $PROGRAM_LIST
1056     avcodec
1057     avdevice
1058     avfilter
1059     avformat
1060     avresample
1061     avisynth
1062     bzlib
1063     crystalhd
1064     dct
1065     doc
1066     dwt
1067     dxva2
1068     fast_unaligned
1069     fastdiv
1070     fft
1071     fontconfig
1072     frei0r
1073     gnutls
1074     gpl
1075     gray
1076     hardcoded_tables
1077     libaacplus
1078     libass
1079     libbluray
1080     libcaca
1081     libcdio
1082     libcelt
1083     libdc1394
1084     libfaac
1085     libfdk_aac
1086     libflite
1087     libfreetype
1088     libgsm
1089     libiec61883
1090     libilbc
1091     libmodplug
1092     libmp3lame
1093     libnut
1094     libopencore_amrnb
1095     libopencore_amrwb
1096     libopencv
1097     libopenjpeg
1098     libopus
1099     libpulse
1100     librtmp
1101     libschroedinger
1102     libspeex
1103     libstagefright_h264
1104     libtheora
1105     libtwolame
1106     libutvideo
1107     libv4l2
1108     libvo_aacenc
1109     libvo_amrwbenc
1110     libvorbis
1111     libvpx
1112     libx264
1113     libxavs
1114     libxvid
1115     lsp
1116     mdct
1117     memalign_hack
1118     memory_poisoning
1119     network
1120     nonfree
1121     openal
1122     openssl
1123     pic
1124     postproc
1125     rdft
1126     runtime_cpudetect
1127     safe_bitstream_reader
1128     shared
1129     small
1130     sram
1131     static
1132     swresample
1133     swscale
1134     swscale_alpha
1135     thumb
1136     vaapi
1137     vda
1138     vdpau
1139     version3
1140     xmm_clobber_test
1141     x11grab
1142     zlib
1143 "
1144
1145 THREADS_LIST='
1146     pthreads
1147     w32threads
1148     os2threads
1149 '
1150
1151 ARCH_LIST='
1152     alpha
1153     arm
1154     avr32
1155     avr32_ap
1156     avr32_uc
1157     bfin
1158     ia64
1159     m68k
1160     mips
1161     mips64
1162     parisc
1163     ppc
1164     ppc64
1165     s390
1166     sh4
1167     sparc
1168     sparc64
1169     tomi
1170     x86
1171     x86_32
1172     x86_64
1173 '
1174
1175 ARCH_EXT_LIST='
1176     altivec
1177     amd3dnow
1178     amd3dnowext
1179     armv5te
1180     armv6
1181     armv6t2
1182     armvfp
1183     avx
1184     fma4
1185     mmi
1186     mmx
1187     mmxext
1188     neon
1189     ppc4xx
1190     sse
1191     ssse3
1192     vfpv3
1193     vis
1194     mipsfpu
1195     mips32r2
1196     mipsdspr1
1197     mipsdspr2
1198 '
1199
1200 HAVE_LIST_PUB='
1201     bigendian
1202     fast_unaligned
1203 '
1204
1205 HAVE_LIST="
1206     $ARCH_EXT_LIST
1207     $HAVE_LIST_PUB
1208     $THREADS_LIST
1209     aligned_malloc
1210     aligned_stack
1211     alsa_asoundlib_h
1212     altivec_h
1213     arpa_inet_h
1214     asm_mod_q
1215     asm_mod_y
1216     asm_types_h
1217     attribute_may_alias
1218     attribute_packed
1219     cbrtf
1220     clock_gettime
1221     closesocket
1222     cmov
1223     cpuid
1224     cpunop
1225     dcbzl
1226     dev_bktr_ioctl_bt848_h
1227     dev_bktr_ioctl_meteor_h
1228     dev_ic_bt8xx_h
1229     dev_video_bktr_ioctl_bt848_h
1230     dev_video_meteor_ioctl_meteor_h
1231     dlfcn_h
1232     dlopen
1233     dos_paths
1234     dxva_h
1235     ebp_available
1236     ebx_available
1237     exp2
1238     exp2f
1239     fast_64bit
1240     fast_clz
1241     fast_cmov
1242     fcntl
1243     fork
1244     getaddrinfo
1245     gethrtime
1246     getopt
1247     GetProcessAffinityMask
1248     GetProcessMemoryInfo
1249     GetProcessTimes
1250     GetSystemTimeAsFileTime
1251     getrusage
1252     gettimeofday
1253     glob
1254     gnu_as
1255     ibm_asm
1256     inet_aton
1257     inline_asm
1258     isatty
1259     isinf
1260     isnan
1261     jack_port_get_latency_range
1262     kbhit
1263     ldbrx
1264     libdc1394_1
1265     libdc1394_2
1266     llrint
1267     llrintf
1268     local_aligned_16
1269     local_aligned_8
1270     localtime_r
1271     log2
1272     log2f
1273     loongson
1274     lrint
1275     lrintf
1276     lzo1x_999_compress
1277     machine_ioctl_bt848_h
1278     machine_ioctl_meteor_h
1279     makeinfo
1280     malloc_h
1281     MapViewOfFile
1282     memalign
1283     mkstemp
1284     mm_empty
1285     mmap
1286     nanosleep
1287     PeekNamedPipe
1288     pod2man
1289     poll_h
1290     posix_memalign
1291     pthread_cancel
1292     rdtsc
1293     rint
1294     round
1295     roundf
1296     rweflags
1297     sched_getaffinity
1298     sdl
1299     sdl_video_size
1300     setmode
1301     setrlimit
1302     Sleep
1303     sndio_h
1304     socklen_t
1305     soundcard_h
1306     strerror_r
1307     strptime
1308     struct_addrinfo
1309     struct_group_source_req
1310     struct_ip_mreq_source
1311     struct_ipv6_mreq
1312     struct_pollfd
1313     struct_rusage_ru_maxrss
1314     struct_sctp_event_subscribe
1315     struct_sockaddr_in6
1316     struct_sockaddr_sa_len
1317     struct_sockaddr_storage
1318     struct_v4l2_frmivalenum_discrete
1319     symver
1320     symver_asm_label
1321     symver_gnu_asm
1322     sysconf
1323     sysctl
1324     sys_mman_h
1325     sys_param_h
1326     sys_resource_h
1327     sys_select_h
1328     sys_soundcard_h
1329     sys_time_h
1330     sys_videoio_h
1331     termios_h
1332     texi2html
1333     threads
1334     trunc
1335     truncf
1336     unistd_h
1337     usleep
1338     vfp_args
1339     VirtualAlloc
1340     windows_h
1341     winsock2_h
1342     xform_asm
1343     xgetbv
1344     xmm_clobbers
1345     yasm
1346 "
1347
1348 # options emitted with CONFIG_ prefix but not available on command line
1349 CONFIG_EXTRA="
1350     aandcttables
1351     ac3dsp
1352     avutil
1353     gcrypt
1354     golomb
1355     gplv3
1356     h264chroma
1357     h264dsp
1358     h264pred
1359     h264qpel
1360     huffman
1361     lgplv3
1362     lpc
1363     mpegaudiodsp
1364     mpegvideo
1365     nettle
1366     rtpdec
1367     sinewin
1368     vp3dsp
1369 "
1370
1371 CMDLINE_SELECT="
1372     $ARCH_EXT_LIST
1373     $CONFIG_LIST
1374     $THREADS_LIST
1375     asm
1376     coverage
1377     cross_compile
1378     debug
1379     extra_warnings
1380     logging
1381     optimizations
1382     stripping
1383     symver
1384     yasm
1385 "
1386
1387 PATHS_LIST='
1388     bindir
1389     datadir
1390     incdir
1391     libdir
1392     mandir
1393     prefix
1394     shlibdir
1395 '
1396
1397 CMDLINE_SET="
1398     $PATHS_LIST
1399     ar
1400     arch
1401     as
1402     assert_level
1403     build_suffix
1404     cc
1405     cpu
1406     cross_prefix
1407     cxx
1408     dep_cc
1409     extra_version
1410     host_cc
1411     host_cflags
1412     host_ldflags
1413     host_libs
1414     host_os
1415     install
1416     ld
1417     logfile
1418     malloc_prefix
1419     nm
1420     optflags
1421     pkg_config
1422     postproc_version
1423     progs_suffix
1424     random_seed
1425     samples
1426     strip
1427     sysinclude
1428     sysroot
1429     target_exec
1430     target_os
1431     target_path
1432     valgrind
1433     yasmexe
1434 "
1435
1436 CMDLINE_APPEND="
1437     extra_cflags
1438     extra_cxxflags
1439 "
1440
1441 # code dependency declarations
1442
1443 # architecture extensions
1444
1445 armv5te_deps="arm"
1446 armv6_deps="arm"
1447 armv6t2_deps="arm"
1448 armvfp_deps="arm"
1449 neon_deps="arm"
1450 vfpv3_deps="armvfp"
1451
1452 mipsfpu_deps="mips"
1453 mips32r2_deps="mips"
1454 mipsdspr1_deps="mips"
1455 mipsdspr2_deps="mips"
1456 mmi_deps="mips"
1457
1458 altivec_deps="ppc"
1459 ppc4xx_deps="ppc"
1460
1461 vis_deps="sparc"
1462
1463 x86_64_suggest="cmov fast_cmov"
1464 amd3dnow_deps="mmx"
1465 amd3dnowext_deps="amd3dnow"
1466 mmx_deps="x86"
1467 mmxext_deps="mmx"
1468 sse_deps="mmx"
1469 ssse3_deps="sse"
1470 avx_deps="ssse3"
1471 fma4_deps="avx"
1472
1473 aligned_stack_if_any="ppc x86"
1474 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1475 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1476 fast_unaligned_if_any="armv6 ppc x86"
1477
1478 inline_asm_deps="!tms470"
1479 need_memalign="altivec neon sse"
1480
1481 symver_if_any="symver_asm_label symver_gnu_asm"
1482
1483 # subsystems
1484 dct_select="rdft"
1485 mdct_select="fft"
1486 rdft_select="fft"
1487 mpegaudiodsp_select="dct"
1488
1489 # decoders / encoders / hardware accelerators
1490 aac_decoder_select="mdct sinewin"
1491 aac_encoder_select="mdct sinewin"
1492 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1493 ac3_decoder_select="mdct ac3dsp ac3_parser"
1494 ac3_encoder_select="mdct ac3dsp"
1495 ac3_fixed_encoder_select="mdct ac3dsp"
1496 alac_encoder_select="lpc"
1497 amrnb_decoder_select="lsp"
1498 amrwb_decoder_select="lsp"
1499 amv_encoder_select="aandcttables"
1500 atrac1_decoder_select="mdct sinewin"
1501 atrac3_decoder_select="mdct"
1502 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1503 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1504 cavs_decoder_select="golomb mpegvideo"
1505 cook_decoder_select="mdct sinewin"
1506 cscd_decoder_suggest="zlib"
1507 dca_decoder_select="mdct"
1508 dirac_decoder_select="dwt golomb"
1509 dnxhd_encoder_select="aandcttables mpegvideo"
1510 dxa_decoder_select="zlib"
1511 eac3_decoder_select="ac3_decoder"
1512 eac3_encoder_select="mdct ac3dsp"
1513 eamad_decoder_select="aandcttables"
1514 eatgq_decoder_select="aandcttables"
1515 eatqi_decoder_select="aandcttables mpegvideo"
1516 exr_decoder_select="zlib"
1517 ffv1_decoder_select="golomb"
1518 flac_decoder_select="golomb"
1519 flac_encoder_select="golomb lpc"
1520 flashsv_decoder_select="zlib"
1521 flashsv_encoder_select="zlib"
1522 flashsv2_encoder_select="zlib"
1523 flashsv2_decoder_select="zlib"
1524 flv_decoder_select="h263_decoder"
1525 flv_encoder_select="h263_encoder"
1526 fraps_decoder_select="huffman"
1527 h261_decoder_select="mpegvideo"
1528 h261_encoder_select="aandcttables mpegvideo"
1529 h263_decoder_select="h263_parser mpegvideo"
1530 h263_encoder_select="aandcttables mpegvideo"
1531 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1532 h263i_decoder_select="h263_decoder"
1533 h263p_encoder_select="h263_encoder"
1534 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1535 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1536 h264_dxva2_hwaccel_deps="dxva2api_h"
1537 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1538 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1539 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1540 h264_vda_hwaccel_select="vda h264_decoder"
1541 h264_vdpau_decoder_select="vdpau h264_decoder"
1542 iac_decoder_select="fft mdct sinewin"
1543 imc_decoder_select="fft mdct sinewin"
1544 jpegls_decoder_select="golomb"
1545 jpegls_encoder_select="golomb"
1546 ljpeg_encoder_select="aandcttables mpegvideo"
1547 loco_decoder_select="golomb"
1548 mdec_decoder_select="mpegvideo"
1549 mjpeg_encoder_select="aandcttables mpegvideo"
1550 mlp_decoder_select="mlp_parser"
1551 mp1_decoder_select="mpegaudiodsp"
1552 mp1float_decoder_select="mpegaudiodsp"
1553 mp2_decoder_select="mpegaudiodsp"
1554 mp2float_decoder_select="mpegaudiodsp"
1555 mp3_decoder_select="mpegaudiodsp"
1556 mp3adu_decoder_select="mpegaudiodsp"
1557 mp3adufloat_decoder_select="mpegaudiodsp"
1558 mp3float_decoder_select="mpegaudiodsp"
1559 mp3on4_decoder_select="mpegaudiodsp"
1560 mp3on4float_decoder_select="mpegaudiodsp"
1561 mpc7_decoder_select="mpegaudiodsp"
1562 mpc8_decoder_select="mpegaudiodsp"
1563 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1564 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1565 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1566 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1567 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1568 mpeg1video_decoder_select="mpegvideo"
1569 mpeg1video_encoder_select="aandcttables mpegvideo"
1570 mpeg2_crystalhd_decoder_select="crystalhd"
1571 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1572 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1573 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1574 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1575 mpeg2video_encoder_select="mpegvideo"
1576 mpeg2video_encoder_select="aandcttables mpegvideo"
1577 mpeg4_crystalhd_decoder_select="crystalhd"
1578 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1579 mpeg4_encoder_select="h263_encoder"
1580 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1581 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1582 msmpeg4_crystalhd_decoder_select="crystalhd"
1583 msmpeg4v1_decoder_select="h263_decoder"
1584 msmpeg4v1_encoder_select="h263_encoder"
1585 msmpeg4v2_decoder_select="h263_decoder"
1586 msmpeg4v2_encoder_select="h263_encoder"
1587 msmpeg4v3_decoder_select="h263_decoder"
1588 msmpeg4v3_encoder_select="h263_encoder"
1589 nellymoser_decoder_select="mdct sinewin"
1590 nellymoser_encoder_select="mdct sinewin"
1591 png_decoder_select="zlib"
1592 png_encoder_select="zlib"
1593 qcelp_decoder_select="lsp"
1594 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1595 ra_144_encoder_select="lpc"
1596 ralf_decoder_select="golomb"
1597 rv10_decoder_select="h263_decoder"
1598 rv10_encoder_select="h263_encoder"
1599 rv20_decoder_select="h263_decoder"
1600 rv20_encoder_select="h263_encoder"
1601 rv30_decoder_select="golomb h264chroma h264pred h264qpel mpegvideo"
1602 rv40_decoder_select="golomb h264chroma h264pred h264qpel mpegvideo"
1603 shorten_decoder_select="golomb"
1604 sipr_decoder_select="lsp"
1605 snow_decoder_select="dwt"
1606 snow_encoder_select="aandcttables dwt mpegvideo"
1607 sonic_decoder_select="golomb"
1608 sonic_encoder_select="golomb"
1609 sonic_ls_encoder_select="golomb"
1610 svq1_encoder_select="mpegvideo"
1611 svq1_encoder_select="aandcttables mpegvideo"
1612 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1613 svq3_decoder_suggest="zlib"
1614 theora_decoder_select="vp3_decoder"
1615 tiff_decoder_suggest="zlib"
1616 tiff_encoder_suggest="zlib"
1617 tscc_decoder_select="zlib"
1618 twinvq_decoder_select="mdct lsp sinewin"
1619 vc1_crystalhd_decoder_select="crystalhd"
1620 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1621 vc1_dxva2_hwaccel_deps="dxva2api_h"
1622 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1623 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1624 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1625 vc1image_decoder_select="vc1_decoder"
1626 vorbis_decoder_select="mdct"
1627 vorbis_encoder_select="mdct"
1628 vp3_decoder_select="vp3dsp"
1629 vp5_decoder_select="vp3dsp"
1630 vp6_decoder_select="huffman vp3dsp"
1631 vp6a_decoder_select="vp6_decoder"
1632 vp6f_decoder_select="vp6_decoder"
1633 vp8_decoder_select="h264pred h264qpel"
1634 wmapro_decoder_select="mdct sinewin"
1635 wmav1_decoder_select="mdct sinewin"
1636 wmav1_encoder_select="mdct sinewin"
1637 wmav2_decoder_select="mdct sinewin"
1638 wmav2_encoder_select="mdct sinewin"
1639 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1640 wmv1_decoder_select="h263_decoder"
1641 wmv1_encoder_select="h263_encoder"
1642 wmv2_decoder_select="h263_decoder"
1643 wmv2_encoder_select="h263_encoder"
1644 wmv3_decoder_select="vc1_decoder"
1645 wmv3_crystalhd_decoder_select="crystalhd"
1646 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1647 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1648 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1649 wmv3image_decoder_select="wmv3_decoder"
1650 zerocodec_decoder_select="zlib"
1651 zlib_decoder_select="zlib"
1652 zlib_encoder_select="zlib"
1653 zmbv_decoder_select="zlib"
1654 zmbv_encoder_select="zlib"
1655
1656 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1657 vaapi_deps="va_va_h"
1658 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1659 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1660
1661 # parsers
1662 h264_parser_select="golomb h264dsp h264pred mpegvideo"
1663 mpeg4video_parser_select="mpegvideo"
1664 mpegvideo_parser_select="mpegvideo"
1665 vc1_parser_select="mpegvideo"
1666
1667 # external libraries
1668 libaacplus_encoder_deps="libaacplus"
1669 libcelt_decoder_deps="libcelt"
1670 libfaac_encoder_deps="libfaac"
1671 libfdk_aac_encoder_deps="libfdk_aac"
1672 libgsm_decoder_deps="libgsm"
1673 libgsm_encoder_deps="libgsm"
1674 libgsm_ms_decoder_deps="libgsm"
1675 libgsm_ms_encoder_deps="libgsm"
1676 libilbc_decoder_deps="libilbc"
1677 libilbc_encoder_deps="libilbc"
1678 libmodplug_demuxer_deps="libmodplug"
1679 libmp3lame_encoder_deps="libmp3lame"
1680 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1681 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1682 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1683 libopenjpeg_decoder_deps="libopenjpeg"
1684 libopenjpeg_encoder_deps="libopenjpeg"
1685 libopus_decoder_deps="libopus"
1686 libschroedinger_decoder_deps="libschroedinger"
1687 libschroedinger_encoder_deps="libschroedinger"
1688 libspeex_decoder_deps="libspeex"
1689 libspeex_encoder_deps="libspeex"
1690 libstagefright_h264_decoder_deps="libstagefright_h264"
1691 libtheora_encoder_deps="libtheora"
1692 libtwolame_encoder_deps="libtwolame"
1693 libvo_aacenc_encoder_deps="libvo_aacenc"
1694 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1695 libvorbis_decoder_deps="libvorbis"
1696 libvorbis_encoder_deps="libvorbis"
1697 libvpx_decoder_deps="libvpx"
1698 libvpx_encoder_deps="libvpx"
1699 libx264_encoder_deps="libx264"
1700 libx264rgb_encoder_deps="libx264"
1701 libxavs_encoder_deps="libxavs"
1702 libxvid_encoder_deps="libxvid"
1703 libutvideo_decoder_deps="libutvideo"
1704 libutvideo_encoder_deps="libutvideo"
1705
1706 # demuxers / muxers
1707 ac3_demuxer_select="ac3_parser"
1708 asf_stream_muxer_select="asf_muxer"
1709 avisynth_demuxer_deps="avisynth"
1710 dirac_demuxer_select="dirac_parser"
1711 eac3_demuxer_select="ac3_parser"
1712 flac_demuxer_select="flac_parser"
1713 ipod_muxer_select="mov_muxer"
1714 libnut_demuxer_deps="libnut"
1715 libnut_muxer_deps="libnut"
1716 matroska_audio_muxer_select="matroska_muxer"
1717 matroska_demuxer_suggest="zlib bzlib"
1718 mov_demuxer_suggest="zlib"
1719 mp3_demuxer_select="mpegaudio_parser"
1720 mp4_muxer_select="mov_muxer"
1721 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1722 mpegtsraw_demuxer_select="mpegts_demuxer"
1723 mxf_d10_muxer_select="mxf_muxer"
1724 ogg_demuxer_select="golomb"
1725 psp_muxer_select="mov_muxer"
1726 rtp_demuxer_select="sdp_demuxer"
1727 rtp_muxer_select="mpegvideo"
1728 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1729 rtsp_demuxer_select="http_protocol rtpdec"
1730 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1731 sap_demuxer_select="sdp_demuxer"
1732 sap_muxer_select="rtp_muxer rtp_protocol"
1733 sdp_demuxer_select="rtpdec"
1734 spdif_muxer_select="aac_parser"
1735 tg2_muxer_select="mov_muxer"
1736 tgp_muxer_select="mov_muxer"
1737 w64_demuxer_deps="wav_demuxer"
1738
1739 # indevs / outdevs
1740 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1741 alsa_outdev_deps="alsa_asoundlib_h"
1742 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1743 caca_outdev_deps="libcaca"
1744 dshow_indev_deps="IBaseFilter"
1745 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1746 dv1394_indev_deps="dv1394 dv_demuxer"
1747 fbdev_indev_deps="linux_fb_h"
1748 iec61883_indev_deps="libiec61883"
1749 jack_indev_deps="jack_jack_h sem_timedwait"
1750 lavfi_indev_deps="avfilter"
1751 libcdio_indev_deps="libcdio"
1752 libdc1394_indev_deps="libdc1394"
1753 libv4l2_indev_deps="libv4l2"
1754 openal_indev_deps="openal"
1755 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1756 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1757 pulse_indev_deps="libpulse"
1758 sdl_outdev_deps="sdl"
1759 sndio_indev_deps="sndio_h"
1760 sndio_outdev_deps="sndio_h"
1761 v4l_indev_deps="linux_videodev_h"
1762 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1763 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1764 vfwcap_indev_extralibs="-lavicap32"
1765 x11grab_indev_deps="x11grab"
1766
1767 # protocols
1768 bluray_protocol_deps="libbluray"
1769 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1770 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1771 ffrtmpcrypt_protocol_select="tcp_protocol"
1772 ffrtmphttp_protocol_deps="!librtmp_protocol"
1773 ffrtmphttp_protocol_select="http_protocol"
1774 gopher_protocol_deps="network"
1775 httpproxy_protocol_deps="network"
1776 httpproxy_protocol_select="tcp_protocol"
1777 http_protocol_deps="network"
1778 http_protocol_select="tcp_protocol"
1779 https_protocol_select="tls_protocol"
1780 librtmp_protocol_deps="librtmp"
1781 librtmpe_protocol_deps="librtmp"
1782 librtmps_protocol_deps="librtmp"
1783 librtmpt_protocol_deps="librtmp"
1784 librtmpte_protocol_deps="librtmp"
1785 mmsh_protocol_select="http_protocol"
1786 mmst_protocol_deps="network"
1787 rtmp_protocol_deps="!librtmp_protocol"
1788 rtmp_protocol_select="tcp_protocol"
1789 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1790 rtmps_protocol_deps="!librtmp_protocol"
1791 rtmps_protocol_select="tls_protocol"
1792 rtmpt_protocol_select="ffrtmphttp_protocol"
1793 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1794 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1795 rtp_protocol_select="udp_protocol"
1796 sctp_protocol_deps="network struct_sctp_event_subscribe"
1797 tcp_protocol_deps="network"
1798 tls_protocol_deps_any="openssl gnutls"
1799 tls_protocol_select="tcp_protocol"
1800 udp_protocol_deps="network"
1801
1802 # filters
1803 aconvert_filter_deps="swresample"
1804 amovie_filter_deps="avcodec avformat"
1805 aresample_filter_deps="swresample"
1806 ass_filter_deps="libass"
1807 asyncts_filter_deps="avresample"
1808 atempo_filter_deps="avcodec rdft"
1809 blackframe_filter_deps="gpl"
1810 boxblur_filter_deps="gpl"
1811 colormatrix_filter_deps="gpl"
1812 cropdetect_filter_deps="gpl"
1813 delogo_filter_deps="gpl"
1814 deshake_filter_deps="avcodec"
1815 drawtext_filter_deps="libfreetype"
1816 flite_filter_deps="libflite"
1817 frei0r_filter_deps="frei0r dlopen"
1818 frei0r_filter_extralibs='$ldl'
1819 frei0r_src_filter_deps="frei0r dlopen"
1820 frei0r_src_filter_extralibs='$ldl'
1821 hqdn3d_filter_deps="gpl"
1822 movie_filter_deps="avcodec avformat"
1823 mp_filter_deps="gpl avcodec swscale postproc"
1824 mptestsrc_filter_deps="gpl"
1825 negate_filter_deps="lut_filter"
1826 resample_filter_deps="avresample"
1827 ocv_filter_deps="libopencv"
1828 pan_filter_deps="swresample"
1829 removelogo_filter_deps="avcodec avformat swscale"
1830 scale_filter_deps="swscale"
1831 select_filter_deps="avcodec"
1832 super2xsai_filter_deps="gpl"
1833 tinterlace_filter_deps="gpl"
1834 yadif_filter_deps="gpl"
1835
1836 # libraries
1837 avdevice_deps="avcodec avformat"
1838 avformat_deps="avcodec"
1839 postproc_deps="gpl"
1840
1841 # programs
1842 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1843 ffmpeg_select="buffersink_filter format_filter aformat_filter
1844                setpts_filter null_filter anull_filter abuffersink_filter"
1845 ffplay_deps="avcodec avformat swscale swresample sdl"
1846 ffplay_select="buffersink_filter rdft"
1847 ffprobe_deps="avcodec avformat"
1848 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1849 ffserver_extralibs='$ldl'
1850
1851 doc_deps_any="texi2html makeinfo pod2man"
1852
1853 # tests
1854 colormatrix1_test_deps="colormatrix_filter"
1855 colormatrix2_test_deps="colormatrix_filter"
1856 flashsv2_test_deps="zlib"
1857 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1858 mpng_test_deps="zlib"
1859 pp_test_deps="mp_filter"
1860 pp2_test_deps="mp_filter"
1861 pp3_test_deps="mp_filter"
1862 pp4_test_deps="mp_filter"
1863 pp5_test_deps="mp_filter"
1864 pp6_test_deps="mp_filter"
1865 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1866 zlib_test_deps="zlib"
1867 zmbv_test_deps="zlib"
1868
1869 test_deps(){
1870     suf1=$1
1871     suf2=$2
1872     shift 2
1873     for v; do
1874         dep=${v%=*}
1875         tests=${v#*=}
1876         for name in ${tests}; do
1877             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1878         done
1879     done
1880 }
1881
1882 test_deps _muxer _demuxer                                               \
1883     aiff                                                                \
1884     pcm_alaw=alaw                                                       \
1885     asf                                                                 \
1886     au                                                                  \
1887     avi                                                                 \
1888     dv=dv_fmt                                                           \
1889     ffm                                                                 \
1890     flv=flv_fmt                                                         \
1891     gxf                                                                 \
1892     matroska=mkv                                                        \
1893     mmf                                                                 \
1894     mov="mov ismv"                                                      \
1895     pcm_mulaw=mulaw                                                     \
1896     mxf="mxf mxf_d10"                                                   \
1897     nut                                                                 \
1898     ogg="ogg ogg_vp3"                                                   \
1899     rawvideo=pixfmt                                                     \
1900     rm                                                                  \
1901     swf                                                                 \
1902     mpegts=ts                                                           \
1903     voc                                                                 \
1904     wav                                                                 \
1905     yuv4mpegpipe=yuv4mpeg                                               \
1906
1907 # default parameters
1908
1909 logfile="config.log"
1910
1911 # installation paths
1912 prefix_default="/usr/local"
1913 bindir_default='${prefix}/bin'
1914 datadir_default='${prefix}/share/ffmpeg'
1915 incdir_default='${prefix}/include'
1916 libdir_default='${prefix}/lib'
1917 mandir_default='${prefix}/share/man'
1918 shlibdir_default="$libdir_default"
1919 postproc_version_default="current"
1920
1921 # toolchain
1922 ar_default="ar"
1923 cc_default="gcc"
1924 cxx_default="g++"
1925 host_cc_default="gcc"
1926 install="install"
1927 ln_s="ln -sf"
1928 nm_default="nm"
1929 objformat="elf"
1930 pkg_config_default=pkg-config
1931 ranlib="ranlib"
1932 strip_default="strip"
1933 yasmexe_default="yasm"
1934
1935 nm_opts='-g'
1936 nogas=":"
1937
1938 # machine
1939 arch_default=$(uname -m)
1940 cpu="generic"
1941
1942 # OS
1943 target_os_default=$(tolower $(uname -s))
1944 host_os=$target_os_default
1945
1946 # alternative libpostproc version
1947 ALT_PP_VER_MAJOR=51
1948 ALT_PP_VER_MINOR=2
1949 ALT_PP_VER_MICRO=101
1950 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1951
1952 # configurable options
1953 enable $PROGRAM_LIST
1954
1955 enable avcodec
1956 enable avdevice
1957 enable avfilter
1958 enable avformat
1959 enable avutil
1960 enable postproc
1961 enable stripping
1962 enable swresample
1963 enable swscale
1964
1965 enable asm
1966 enable debug
1967 enable doc
1968 enable fastdiv
1969 enable network
1970 enable optimizations
1971 enable safe_bitstream_reader
1972 enable static
1973 enable swscale_alpha
1974
1975 # build settings
1976 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1977 FFSERVERLDFLAGS=-Wl,-E
1978 LIBPREF="lib"
1979 LIBSUF=".a"
1980 FULLNAME='$(NAME)$(BUILDSUF)'
1981 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1982 SLIBPREF="lib"
1983 SLIBSUF=".so"
1984 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1985 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1986 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1987 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1988 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1989 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1990
1991 asflags_filter=echo
1992 cflags_filter=echo
1993 ldflags_filter=echo
1994
1995 AS_C='-c'
1996 AS_O='-o $@'
1997 CC_C='-c'
1998 CC_E='-E -o $@'
1999 CC_O='-o $@'
2000 CXX_C='-c'
2001 CXX_O='-o $@'
2002 LD_O='-o $@'
2003 HOSTCC_C='-c'
2004 HOSTCC_O='-o $@'
2005
2006 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2007 host_libs='-lm'
2008 host_cflags_filter=echo
2009 host_ldflags_filter=echo
2010
2011 target_path='$(CURDIR)'
2012
2013 # since the object filename is not given with the -MM flag, the compiler
2014 # is only able to print the basename, and we must add the path ourselves
2015 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2016 DEPFLAGS='-MM'
2017
2018 # find source path
2019 if test -f configure; then
2020     source_path=.
2021 else
2022     source_path=$(cd $(dirname "$0"); pwd)
2023     echo "$source_path" | grep -q '[[:blank:]]' &&
2024         die "Out of tree builds are impossible with whitespace in source path."
2025     test -e "$source_path/config.h" &&
2026         die "Out of tree builds are impossible with config.h in source dir."
2027 fi
2028
2029 for v in "$@"; do
2030     r=${v#*=}
2031     l=${v%"$r"}
2032     r=$(sh_quote "$r")
2033     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2034 done
2035
2036 find_things(){
2037     thing=$1
2038     pattern=$2
2039     file=$source_path/$3
2040     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2041 }
2042
2043 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2044 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2045 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2046 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2047 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2048 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2049 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2050 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2051 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2052 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2053 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2054
2055 ALL_COMPONENTS="
2056     $BSF_LIST
2057     $DECODER_LIST
2058     $DEMUXER_LIST
2059     $ENCODER_LIST
2060     $FILTER_LIST
2061     $HWACCEL_LIST
2062     $INDEV_LIST
2063     $MUXER_LIST
2064     $OUTDEV_LIST
2065     $PARSER_LIST
2066     $PROTOCOL_LIST
2067 "
2068
2069 find_tests(){
2070     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2071 }
2072
2073 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2074 LAVF_TESTS=$(find_tests lavf)
2075 LAVFI_TESTS=$(find_tests lavfi)
2076 SEEK_TESTS=$(find_tests seek seek_)
2077
2078 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2079
2080 for n in $COMPONENT_LIST; do
2081     v=$(toupper ${n%s})_LIST
2082     eval enable \$$v
2083     eval ${n}_if_any="\$$v"
2084 done
2085
2086 enable $ARCH_EXT_LIST $ALL_TESTS
2087
2088 die_unknown(){
2089     echo "Unknown option \"$1\"."
2090     echo "See $0 --help for available options."
2091     exit 1
2092 }
2093
2094 show_list() {
2095     suffix=_$1
2096     shift
2097     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2098     exit 0
2099 }
2100
2101 rand_list(){
2102     IFS=', '
2103     set -- $*
2104     unset IFS
2105     for thing; do
2106         comp=${thing%:*}
2107         prob=${thing#$comp}
2108         prob=${prob#:}
2109         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2110         echo "prob ${prob:-0.5}"
2111         printf '%s\n' $comp
2112     done
2113 }
2114
2115 do_random(){
2116     action=$1
2117     shift
2118     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2119     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2120 }
2121
2122 for opt do
2123     optval="${opt#*=}"
2124     case "$opt" in
2125     --extra-ldflags=*) add_ldflags $optval
2126     ;;
2127     --extra-libs=*) add_extralibs $optval
2128     ;;
2129     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2130     ;;
2131     --enable-debug=*) debuglevel="$optval"
2132     ;;
2133     --disable-everything)
2134     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2135     ;;
2136     --enable-random|--disable-random)
2137     action=${opt%%-random}
2138     do_random ${action#--} $COMPONENT_LIST
2139     ;;
2140     --enable-random=*|--disable-random=*)
2141     action=${opt%%-random=*}
2142     do_random ${action#--} $optval
2143     ;;
2144     --enable-*=*|--disable-*=*)
2145     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2146     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2147     eval list=\$$(toupper $thing)_LIST
2148     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2149     $action $(filter "$name" $list)
2150     ;;
2151     --enable-?*|--disable-?*)
2152     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2153     if is_in $option $COMPONENT_LIST; then
2154         test $action = disable && action=unset
2155         eval $action \$$(toupper ${option%s})_LIST
2156     elif is_in $option $CMDLINE_SELECT; then
2157         $action $option
2158     else
2159         die_unknown $opt
2160     fi
2161     ;;
2162     --list-*)
2163         NAME="${opt#--list-}"
2164         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2165         NAME=${NAME%s}
2166         eval show_list $NAME \$$(toupper $NAME)_LIST
2167     ;;
2168     --help|-h) show_help
2169     ;;
2170     *)
2171     optname="${opt%%=*}"
2172     optname="${optname#--}"
2173     optname=$(echo "$optname" | sed 's/-/_/g')
2174     if is_in $optname $CMDLINE_SET; then
2175         eval $optname='$optval'
2176     elif is_in $optname $CMDLINE_APPEND; then
2177         append $optname "$optval"
2178     else
2179          die_unknown $opt
2180     fi
2181     ;;
2182     esac
2183 done
2184
2185 disabled logging && logfile=/dev/null
2186
2187 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2188 set >> $logfile
2189
2190 test -n "$cross_prefix" && enable cross_compile
2191
2192 if enabled cross_compile; then
2193     test -n "$arch" && test -n "$target_os" ||
2194         die "Must specify target arch and OS when cross-compiling"
2195 fi
2196
2197 set_default arch target_os postproc_version
2198
2199 # Check if we should build alternative libpostproc version instead of current
2200 if   test "$postproc_version" = $ALT_PP_VER; then
2201   LIBPOSTPROC_VERSION=$ALT_PP_VER
2202   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2203   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2204   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2205 elif test "$postproc_version" != current; then
2206   die "Invalid argument to --postproc-version. See --help output."
2207 fi
2208
2209 ar_default="${cross_prefix}${ar_default}"
2210 cc_default="${cross_prefix}${cc_default}"
2211 cxx_default="${cross_prefix}${cxx_default}"
2212 nm_default="${cross_prefix}${nm_default}"
2213 pkg_config_default="${cross_prefix}${pkg_config_default}"
2214 ranlib="${cross_prefix}${ranlib}"
2215 strip_default="${cross_prefix}${strip_default}"
2216
2217 sysinclude_default="${sysroot}/usr/include"
2218
2219 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2220 enabled cross_compile || host_cc_default=$cc
2221 set_default host_cc
2222
2223 if ! $pkg_config --version >/dev/null 2>&1; then
2224     warn "$pkg_config not found, library detection may fail."
2225     pkg_config=false
2226 fi
2227
2228 exesuf() {
2229     case $1 in
2230         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2231     esac
2232 }
2233
2234 EXESUF=$(exesuf $target_os)
2235 HOSTEXESUF=$(exesuf $host_os)
2236
2237 # set temporary file name
2238 : ${TMPDIR:=$TEMPDIR}
2239 : ${TMPDIR:=$TMP}
2240 : ${TMPDIR:=/tmp}
2241
2242 if ! check_cmd mktemp -u XXXXXX; then
2243     # simple replacement for missing mktemp
2244     # NOT SAFE FOR GENERAL USE
2245     mktemp(){
2246         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2247     }
2248 fi
2249
2250 tmpfile(){
2251     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2252         (set -C; exec > $tmp) 2>/dev/null ||
2253         die "Unable to create temporary file in $TMPDIR."
2254     append TMPFILES $tmp
2255     eval $1=$tmp
2256 }
2257
2258 trap 'rm -f -- $TMPFILES' EXIT
2259
2260 tmpfile TMPASM .asm
2261 tmpfile TMPC   .c
2262 tmpfile TMPCPP .cpp
2263 tmpfile TMPE   $EXESUF
2264 tmpfile TMPH   .h
2265 tmpfile TMPO   .o
2266 tmpfile TMPS   .S
2267 tmpfile TMPSH  .sh
2268 tmpfile TMPV   .ver
2269
2270 unset -f mktemp
2271
2272 chmod +x $TMPE
2273
2274 # make sure we can execute files in $TMPDIR
2275 cat > $TMPSH 2>> $logfile <<EOF
2276 #! /bin/sh
2277 EOF
2278 chmod +x $TMPSH >> $logfile 2>&1
2279 if ! $TMPSH >> $logfile 2>&1; then
2280     cat <<EOF
2281 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2282 variable to another directory and make sure that it is not mounted noexec.
2283 EOF
2284     die "Sanity test failed."
2285 fi
2286
2287 pgi_flags(){
2288     for flag; do
2289         case $flag in
2290             -fomit-frame-pointer) echo -Mnoframe ;;
2291             -g)                   echo -gopt ;;
2292             *)                    echo $flag ;;
2293         esac
2294     done
2295 }
2296
2297 suncc_flags(){
2298     for flag; do
2299         case $flag in
2300             -march=*|-mcpu=*)
2301                 case "${flag#*=}" in
2302                     native)                   echo -xtarget=native       ;;
2303                     v9|niagara)               echo -xarch=sparc          ;;
2304                     ultrasparc)               echo -xarch=sparcvis       ;;
2305                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2306                     i586|pentium)             echo -xchip=pentium        ;;
2307                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2308                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2309                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2310                     pentium4*)          echo -xtarget=pentium4           ;;
2311                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2312                     *-sse3)             echo -xarch=sse3                 ;;
2313                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2314                     amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2315                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2316                     k8|opteron|athlon64|athlon-fx)
2317                                               echo -xarch=sse2a          ;;
2318                     athlon*)                  echo -xarch=pentium_proa   ;;
2319                 esac
2320                 ;;
2321             -std=c99)             echo -xc99              ;;
2322             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2323             -fPIC)                echo -KPIC -xcode=pic32 ;;
2324             -W*,*)                echo $flag              ;;
2325             -f*-*|-W*)                                    ;;
2326             *)                    echo $flag              ;;
2327         esac
2328     done
2329 }
2330
2331 tms470_flags(){
2332     for flag; do
2333         case $flag in
2334             -march=*|-mcpu=*)
2335                 case "${flag#*=}" in
2336                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2337                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2338                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2339                     armv6*|arm11*)          echo -mv=6   ;;
2340                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2341                                             echo -mv=5e  ;;
2342                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2343                 esac
2344                 ;;
2345             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2346             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2347             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2348             -msoft-float)   echo --float_support=vfplib       ;;
2349             -O[0-3]|-mf=*)  echo $flag                        ;;
2350             -g)             echo -g -mn                       ;;
2351             -pds=*)         echo $flag                        ;;
2352             -D*|-I*)        echo $flag                        ;;
2353             --gcc|--abi=*)  echo $flag                        ;;
2354             -me)            echo $flag                        ;;
2355         esac
2356     done
2357 }
2358
2359 probe_cc(){
2360     pfx=$1
2361     _cc=$2
2362
2363     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags _ldflags
2364     unset _depflags _DEPCMD _DEPFLAGS
2365     _flags_filter=echo
2366
2367     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2368         _type=llvm_gcc
2369         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2370         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2371         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2372         _cflags_speed='-O3'
2373         _cflags_size='-Os'
2374     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2375         _type=gcc
2376         gcc_version=$($_cc --version | head -n1)
2377         gcc_basever=$($_cc -dumpversion)
2378         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2379         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2380         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2381         if ! $_cc -dumpversion | grep -q '^2\.'; then
2382             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2383         fi
2384         _cflags_speed='-O3'
2385         _cflags_size='-Os'
2386     elif $_cc --version 2>/dev/null | grep -q Intel; then
2387         _type=icc
2388         _ident=$($_cc --version | head -n1)
2389         _depflags='-MMD'
2390         _cflags_speed='-O3'
2391         _cflags_size='-Os'
2392         _cflags_noopt='-O1'
2393     elif $_cc -v 2>&1 | grep -q xlc; then
2394         _type=xlc
2395         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2396         _cflags_speed='-O5'
2397         _cflags_size='-O5 -qcompact'
2398     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2399         _type=ccc
2400         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2401         _DEPFLAGS='-M'
2402         debuglevel=3
2403         _ldflags='-Wl,-z,now' # calls to libots crash without this
2404         _cflags_speed='-fast'
2405         _cflags_size='-O1'
2406     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2407         test -d "$sysroot" || die "No valid sysroot specified."
2408         _type=armcc
2409         _ident=$($_cc --vsn | head -n1)
2410         armcc_conf="$PWD/armcc.conf"
2411         $_cc --arm_linux_configure                 \
2412              --arm_linux_config_file="$armcc_conf" \
2413              --configure_sysroot="$sysroot"        \
2414              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2415              die "Error creating armcc configuration file."
2416         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2417         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2418         as_default="${cross_prefix}gcc"
2419         _depflags='-MMD'
2420         _cflags_speed='-O3'
2421         _cflags_size='-Os'
2422     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2423         _type=tms470
2424         _ident=$($_cc -version | head -n1 | tr -s ' ')
2425         _flags='--gcc --abi=eabi -me'
2426         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2427         _cc_e='-ppl -fe=$@'
2428         _cc_o='-fe=$@'
2429         as_default="${cross_prefix}gcc"
2430         ld_default="${cross_prefix}gcc"
2431         _depflags='-ppa -ppd=$(@:.o=.d)'
2432         _cflags_speed='-O3 -mf=5'
2433         _cflags_size='-O3 -mf=2'
2434         _flags_filter=tms470_flags
2435     elif $_cc -v 2>&1 | grep -q clang; then
2436         _type=clang
2437         _ident=$($_cc --version | head -n1)
2438         _depflags='-MMD'
2439         _cflags_speed='-O3'
2440         _cflags_size='-Os'
2441     elif $_cc -V 2>&1 | grep -q Sun; then
2442         _type=suncc
2443         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2444         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2445         _DEPFLAGS='-xM1 -xc99'
2446         _ldflags='-std=c99'
2447         _cflags_speed='-O5'
2448         _cflags_size='-O5 -xspace'
2449         _flags_filter=suncc_flags
2450     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2451         _type=pathscale
2452         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2453         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2454         _cflags_speed='-O2'
2455         _cflags_size='-Os'
2456         _flags_filter='filter_out -Wdisabled-optimization'
2457     elif $_cc -v 2>&1 | grep -q Open64; then
2458         _type=open64
2459         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2460         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2461         _cflags_speed='-O2'
2462         _cflags_size='-Os'
2463         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2464     elif $_cc -V 2>&1 | grep -q Portland; then
2465         _type=pgi
2466         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2467         opt_common='-alias=ansi -Mlre -Mpre'
2468         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2469         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2470         _cflags_noopt="-O1"
2471         _flags_filter=pgi_flags
2472     fi
2473
2474     eval ${pfx}_type=\$_type
2475     eval ${pfx}_ident=\$_ident
2476 }
2477
2478 set_ccvars(){
2479     eval ${1}_C=\${_cc_c-\${${1}_C}}
2480     eval ${1}_E=\${_cc_e-\${${1}_E}}
2481     eval ${1}_O=\${_cc_o-\${${1}_O}}
2482
2483     if [ -n "$_depflags" ]; then
2484         eval ${1}_DEPFLAGS=\$_depflags
2485     else
2486         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2487         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2488         eval DEP${1}FLAGS=\$_flags
2489     fi
2490 }
2491
2492 probe_cc cc "$cc"
2493 cflags_filter=$_flags_filter
2494 cflags_speed=$_cflags_speed
2495 cflags_size=$_cflags_size
2496 cflags_noopt=$_cflags_noopt
2497 add_cflags $_flags $_cflags
2498 cc_ldflags=$_ldflags
2499 set_ccvars CC
2500
2501 probe_cc hostcc "$host_cc"
2502 host_cflags_filter=$_flags_filter
2503 host_ldflags_filter=$_flags_filter
2504 add_host_cflags  $_flags $_cflags
2505 add_host_ldflags $_flags $_ldflags
2506 set_ccvars HOSTCC
2507
2508 test -n "$cc_type" && enable $cc_type ||
2509     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2510
2511 : ${as_default:=$cc}
2512 : ${dep_cc_default:=$cc}
2513 : ${ld_default:=$cc}
2514 set_default ar as dep_cc ld
2515
2516 probe_cc as "$as"
2517 asflags_filter=$_flags_filter
2518 add_asflags $_flags $_cflags
2519 set_ccvars AS
2520
2521 probe_cc ld "$ld"
2522 ldflags_filter=$_flags_filter
2523 add_ldflags $_flags $_ldflags
2524 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2525 LD_O=${_cc_o-$LD_O}
2526
2527 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2528     probe_cc depcc "$dep_cc"
2529     CCDEP=${_DEPCMD:-$DEPCMD}
2530     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2531     DEPCCFLAGS=$_flags
2532 fi
2533
2534 add_cflags $extra_cflags
2535 add_cxxflags $extra_cxxflags
2536 add_asflags $extra_cflags
2537
2538 if test -n "$sysroot"; then
2539     case "$cc_type" in
2540         gcc|llvm_gcc|clang)
2541             add_cppflags --sysroot="$sysroot"
2542             add_ldflags --sysroot="$sysroot"
2543         ;;
2544         tms470)
2545             add_cppflags -I"$sysinclude"
2546             add_ldflags  --sysroot="$sysroot"
2547         ;;
2548     esac
2549 fi
2550
2551 if test "$cpu" = host; then
2552     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2553
2554     case "$cc_type" in
2555         gcc|llvm_gcc)
2556             check_native(){
2557                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2558                 sed -n "/cc1.*$1=/{
2559                             s/.*$1=\\([^ ]*\\).*/\\1/
2560                             p
2561                             q
2562                         }" $TMPE
2563             }
2564             cpu=$(check_native -march || check_native -mcpu)
2565         ;;
2566     esac
2567
2568     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2569 fi
2570
2571 # Deal with common $arch aliases
2572 case "$arch" in
2573     arm*|iPad*)
2574         arch="arm"
2575     ;;
2576     mips|mipsel|IP*)
2577         arch="mips"
2578     ;;
2579     mips64*)
2580         arch="mips"
2581         subarch="mips64"
2582     ;;
2583     parisc|hppa)
2584         arch="parisc"
2585     ;;
2586     parisc64|hppa64)
2587         arch="parisc"
2588         subarch="parisc64"
2589     ;;
2590     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2591         arch="ppc"
2592     ;;
2593     s390|s390x)
2594         arch="s390"
2595     ;;
2596     sh4|sh)
2597         arch="sh4"
2598     ;;
2599     sun4u|sparc64)
2600         arch="sparc"
2601         subarch="sparc64"
2602     ;;
2603     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2604         arch="x86"
2605     ;;
2606 esac
2607
2608 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2609 enable $arch
2610
2611 # Add processor-specific flags
2612 if test "$cpu" = generic; then
2613     : do nothing
2614 elif enabled ppc; then
2615
2616     case $(tolower $cpu) in
2617         601|ppc601|powerpc601)
2618             cpuflags="-mcpu=601"
2619             disable altivec
2620         ;;
2621         603*|ppc603*|powerpc603*)
2622             cpuflags="-mcpu=603"
2623             disable altivec
2624         ;;
2625         604*|ppc604*|powerpc604*)
2626             cpuflags="-mcpu=604"
2627             disable altivec
2628         ;;
2629         g3|75*|ppc75*|powerpc75*)
2630             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2631             disable altivec
2632         ;;
2633         g4|745*|ppc745*|powerpc745*)
2634             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2635         ;;
2636         74*|ppc74*|powerpc74*)
2637             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2638         ;;
2639         g5|970|ppc970|powerpc970)
2640             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2641         ;;
2642         power[3-7]*)
2643             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2644         ;;
2645         cell)
2646             cpuflags="-mcpu=cell"
2647             enable ldbrx
2648         ;;
2649         e500mc)
2650             cpuflags="-mcpu=e500mc"
2651             disable altivec
2652         ;;
2653         e500v2)
2654             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2655             disable altivec
2656         ;;
2657         e500)
2658             cpuflags="-mcpu=8540 -mhard-float"
2659             disable altivec
2660         ;;
2661     esac
2662
2663 elif enabled x86; then
2664
2665     case $cpu in
2666         i[345]86|pentium)
2667             cpuflags="-march=$cpu"
2668             disable mmx
2669         ;;
2670         # targets that do NOT support conditional mov (cmov)
2671         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2672             cpuflags="-march=$cpu"
2673             disable cmov
2674         ;;
2675         # targets that do support conditional mov (cmov)
2676         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2677             cpuflags="-march=$cpu"
2678             enable cmov
2679             enable fast_cmov
2680         ;;
2681         # targets that do support conditional mov but on which it's slow
2682         pentium4|pentium4m|prescott|nocona)
2683             cpuflags="-march=$cpu"
2684             enable cmov
2685             disable fast_cmov
2686         ;;
2687     esac
2688
2689 elif enabled sparc; then
2690
2691     case $cpu in
2692         niagara)
2693             cpuflags="-mcpu=$cpu"
2694             disable vis
2695         ;;
2696         sparc64)
2697             cpuflags="-mcpu=v9"
2698         ;;
2699     esac
2700
2701 elif enabled arm; then
2702
2703     case $cpu in
2704         armv*)
2705             cpuflags="-march=$cpu"
2706             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2707         ;;
2708         *)
2709             cpuflags="-mcpu=$cpu"
2710             case $cpu in
2711                 cortex-a*)                               subarch=armv7a  ;;
2712                 cortex-r*)                               subarch=armv7r  ;;
2713                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2714                 arm11*)                                  subarch=armv6   ;;
2715                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2716                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2717             esac
2718         ;;
2719     esac
2720
2721 elif enabled alpha; then
2722
2723     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2724
2725 elif enabled bfin; then
2726
2727     cpuflags="-mcpu=$cpu"
2728
2729 elif enabled mips; then
2730
2731     cpuflags="-march=$cpu"
2732
2733     case $cpu in
2734         24kc)
2735             disable mipsfpu
2736             disable mipsdspr1
2737             disable mipsdspr2
2738         ;;
2739         24kf*)
2740             disable mipsdspr1
2741             disable mipsdspr2
2742         ;;
2743         24kec|34kc|1004kc)
2744             disable mipsfpu
2745             disable mipsdspr2
2746         ;;
2747         24kef*|34kf*|1004kf*)
2748             disable mipsdspr2
2749         ;;
2750         74kc)
2751             disable mipsfpu
2752         ;;
2753     esac
2754
2755 elif enabled avr32; then
2756
2757     case $cpu in
2758         ap7[02]0[0-2])
2759             subarch="avr32_ap"
2760             cpuflags="-mpart=$cpu"
2761         ;;
2762         ap)
2763             subarch="avr32_ap"
2764             cpuflags="-march=$cpu"
2765         ;;
2766         uc3[ab]*)
2767             subarch="avr32_uc"
2768             cpuflags="-mcpu=$cpu"
2769         ;;
2770         uc)
2771             subarch="avr32_uc"
2772             cpuflags="-march=$cpu"
2773         ;;
2774     esac
2775
2776 fi
2777
2778 add_cflags $cpuflags
2779 add_asflags $cpuflags
2780
2781 # compiler sanity check
2782 check_exec <<EOF
2783 int main(void){ return 0; }
2784 EOF
2785 if test "$?" != 0; then
2786     echo "$cc is unable to create an executable file."
2787     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2788         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2789         echo "Only do this if you know what cross compiling means."
2790     fi
2791     die "C compiler test failed."
2792 fi
2793
2794 add_cppflags -D_ISOC99_SOURCE
2795 add_cxxflags -D__STDC_CONSTANT_MACROS
2796 check_cflags -std=c99
2797 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2798 #include <stdlib.h>
2799 EOF
2800 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2801 #include <stdlib.h>
2802 EOF
2803
2804 check_host_cflags -std=c99
2805 check_host_cflags -Wall
2806
2807 case "$arch" in
2808     alpha|ia64|mips|parisc|sparc)
2809         spic=$shared
2810     ;;
2811     x86)
2812         subarch="x86_32"
2813         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2814         if test "$subarch" = "x86_64"; then
2815             spic=$shared
2816         fi
2817     ;;
2818     ppc)
2819         check_cc <<EOF && subarch="ppc64"
2820         int test[(int)sizeof(char*) - 7];
2821 EOF
2822     ;;
2823 esac
2824
2825 enable $subarch
2826 enabled spic && enable pic
2827
2828 # OS specific
2829 case $target_os in
2830     haiku)
2831         prefix_default="/boot/common"
2832         network_extralibs="-lnetwork"
2833         host_libs=
2834         ;;
2835     sunos)
2836         FFSERVERLDFLAGS=""
2837         SHFLAGS='-shared -Wl,-h,$$(@F)'
2838         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2839         network_extralibs="-lsocket -lnsl"
2840         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2841         # When using suncc to build, the Solaris linker will mark
2842         # an executable with each instruction set encountered by
2843         # the Solaris assembler.  As our libraries contain their own
2844         # guards for processor-specific code, instead suppress
2845         # generation of the HWCAPS ELF section on Solaris x86 only.
2846         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2847         nm_opts='-P -g'
2848         ;;
2849     netbsd)
2850         disable symver
2851         oss_indev_extralibs="-lossaudio"
2852         oss_outdev_extralibs="-lossaudio"
2853         ;;
2854     openbsd|bitrig)
2855         # On OpenBSD 4.5. the compiler does not use PIC unless
2856         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2857         # however the generated executable will not do anything
2858         # (simply quits with exit-code 1, no crash, no output).
2859         # Thus explicitly enable PIC here.
2860         enable pic
2861         disable symver
2862         SHFLAGS='-shared'
2863         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2864         oss_indev_extralibs="-lossaudio"
2865         oss_outdev_extralibs="-lossaudio"
2866         ;;
2867     dragonfly)
2868         disable symver
2869         ;;
2870     freebsd)
2871         ;;
2872     bsd/os)
2873         add_extralibs -lpoll -lgnugetopt
2874         strip="strip -d"
2875         ;;
2876     darwin)
2877         gas="gas-preprocessor.pl $cc"
2878         enabled ppc && add_asflags -force_cpusubtype_ALL
2879         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2880         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2881         strip="${strip} -x"
2882         add_ldflags -Wl,-dynamic,-search_paths_first
2883         SLIBSUF=".dylib"
2884         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2885         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2886         FFSERVERLDFLAGS=-Wl,-bind_at_load
2887         objformat="macho"
2888         enabled x86_64 && objformat="macho64"
2889         enabled_any pic shared ||
2890             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2891         ;;
2892     mingw32*)
2893         if test $target_os = "mingw32ce"; then
2894             disable network
2895         else
2896             target_os=mingw32
2897         fi
2898         LIBTARGET=i386
2899         if enabled x86_64; then
2900             LIBTARGET="i386:x86-64"
2901         elif enabled arm; then
2902             LIBTARGET=arm-wince
2903         fi
2904         shlibdir_default="$bindir_default"
2905         SLIBPREF=""
2906         SLIBSUF=".dll"
2907         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2908         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2909         dlltool="${cross_prefix}dlltool"
2910         if check_cmd lib.exe -list; then
2911             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2912             if enabled x86_64; then
2913                 LIBTARGET=x64
2914             fi
2915         elif check_cmd $dlltool --version; then
2916             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2917         fi
2918         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2919         SLIB_INSTALL_LINKS=
2920         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2921         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2922         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2923         objformat="win32"
2924         enable dos_paths
2925         check_cflags -fno-common
2926         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2927                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2928                 die "ERROR: MinGW runtime version must be >= 3.15."
2929         add_cppflags -U__STRICT_ANSI__
2930         ;;
2931     cygwin*)
2932         target_os=cygwin
2933         shlibdir_default="$bindir_default"
2934         SLIBPREF="cyg"
2935         SLIBSUF=".dll"
2936         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2937         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2938         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2939         SLIB_INSTALL_LINKS=
2940         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
2941         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
2942         objformat="win32"
2943         enable dos_paths
2944         check_cflags -fno-common
2945         add_cppflags -U__STRICT_ANSI__
2946         ;;
2947     *-dos|freedos|opendos)
2948         network_extralibs="-lsocket"
2949         objformat="coff"
2950         enable dos_paths
2951         add_cppflags -U__STRICT_ANSI__
2952         ;;
2953     linux)
2954         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2955         enable dv1394
2956         ;;
2957     irix*)
2958         target_os=irix
2959         ranlib="echo ignoring ranlib"
2960         ;;
2961     os/2*)
2962         strip="lxlite -CS"
2963         ln_s="cp -f"
2964         objformat="aout"
2965         add_cppflags -D_GNU_SOURCE
2966         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2967         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2968         FFSERVERLDFLAGS=""
2969         LIBSUF="_s.a"
2970         SLIBPREF=""
2971         SLIBSUF=".dll"
2972         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2973         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2974         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2975           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2976           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2977           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2978           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2979           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2980         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2981           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2982         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2983         enable dos_paths
2984         enable_weak os2threads
2985         ;;
2986     gnu/kfreebsd)
2987         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2988         ;;
2989     gnu)
2990         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2991         ;;
2992     qnx)
2993         add_cppflags -D_QNX_SOURCE
2994         network_extralibs="-lsocket"
2995         ;;
2996     symbian)
2997         SLIBSUF=".dll"
2998         enable dos_paths
2999         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3000         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3001         add_ldflags -Wl,--target1-abs,--no-undefined \
3002                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3003                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3004         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3005                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3006                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3007         ;;
3008     none)
3009         ;;
3010     *)
3011         die "Unknown OS '$target_os'."
3012         ;;
3013 esac
3014
3015 esc(){
3016     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3017 }
3018
3019 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3020
3021 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3022
3023 set_default $PATHS_LIST
3024
3025 # we need to build at least one lib type
3026 if ! enabled_any static shared; then
3027     cat <<EOF
3028 At least one library type must be built.
3029 Specify --enable-static to build the static libraries or --enable-shared to
3030 build the shared libraries as well. To only build the shared libraries specify
3031 --disable-static in addition to --enable-shared.
3032 EOF
3033     exit 1;
3034 fi
3035
3036 die_license_disabled() {
3037     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3038 }
3039
3040 die_license_disabled_gpl() {
3041     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3042 }
3043
3044 die_license_disabled gpl libcdio
3045 die_license_disabled gpl libutvideo
3046 die_license_disabled gpl libx264
3047 die_license_disabled gpl libxavs
3048 die_license_disabled gpl libxvid
3049 die_license_disabled gpl x11grab
3050
3051 die_license_disabled nonfree libaacplus
3052 die_license_disabled nonfree libfaac
3053 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3054 enabled gpl && die_license_disabled_gpl nonfree openssl
3055
3056 die_license_disabled version3 libopencore_amrnb
3057 die_license_disabled version3 libopencore_amrwb
3058 die_license_disabled version3 libvo_aacenc
3059 die_license_disabled version3 libvo_amrwbenc
3060
3061 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3062
3063 disabled optimizations || check_cflags -fomit-frame-pointer
3064
3065 enable_pic() {
3066     enable pic
3067     add_cppflags -DPIC
3068     add_cflags   -fPIC
3069     add_asflags  -fPIC
3070 }
3071
3072 enabled pic && enable_pic
3073
3074 check_cc <<EOF || die "Symbol mangling check failed."
3075 int ff_extern;
3076 EOF
3077 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3078 extern_prefix=${sym%%ff_extern*}
3079
3080 check_cc <<EOF && enable inline_asm
3081 void foo(void) { __asm__ volatile ("" ::); }
3082 EOF
3083
3084 _restrict=
3085 for restrict_keyword in restrict __restrict__ __restrict; do
3086     check_cc <<EOF && _restrict=$restrict_keyword && break
3087 void foo(char * $restrict_keyword p);
3088 EOF
3089 done
3090
3091 check_cc <<EOF && enable attribute_packed
3092 struct { int x; } __attribute__((packed)) x;
3093 EOF
3094
3095 check_cc <<EOF && enable attribute_may_alias
3096 union { int x; } __attribute__((may_alias)) x;
3097 EOF
3098
3099 check_cc <<EOF || die "endian test failed"
3100 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3101 EOF
3102 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3103
3104 if enabled alpha; then
3105
3106     check_cflags -mieee
3107
3108 elif enabled arm; then
3109
3110     enabled thumb && check_cflags -mthumb || check_cflags -marm
3111     nogas=die
3112
3113     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3114         enable vfp_args
3115     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3116         case "${cross_prefix:-$cc}" in
3117             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3118             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3119 __asm__ (".eabi_attribute 28, 1");
3120 int main(void) { return 0; }
3121 EOF
3122         esac
3123         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3124     fi
3125
3126     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3127     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3128     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3129     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3130     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3131     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3132
3133     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3134     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3135
3136     enabled_all armv6t2 shared !pic && enable_pic
3137
3138 elif enabled mips; then
3139
3140     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3141     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3142     enabled mips32r2  && add_cflags "-mips32r2" &&
3143      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3144     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3145      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3146     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3147      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3148     enabled mipsfpu   && add_cflags "-mhard-float" &&
3149      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3150
3151 elif enabled ppc; then
3152
3153     enable local_aligned_8 local_aligned_16
3154
3155     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3156     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3157     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3158     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3159
3160     # AltiVec flags: The FSF version of GCC differs from the Apple version
3161     if enabled altivec; then
3162         nogas=warn
3163         check_cflags -maltivec -mabi=altivec &&
3164         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3165         check_cflags -faltivec
3166
3167         # check if our compiler supports Motorola AltiVec C API
3168         check_cc <<EOF || disable altivec
3169 $inc_altivec_h
3170 int main(void) {
3171     vector signed int v1, v2, v3;
3172     v1 = vec_add(v2,v3);
3173     return 0;
3174 }
3175 EOF
3176
3177         # check if our compiler supports braces for vector declarations
3178         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3179 $inc_altivec_h
3180 int main (void) { (vector int) {1}; return 0; }
3181 EOF
3182     fi
3183
3184 elif enabled sparc; then
3185
3186     enabled vis &&
3187         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3188         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3189
3190 elif enabled x86; then
3191
3192     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3193     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3194     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3195     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3196
3197     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3198
3199     enable local_aligned_8 local_aligned_16
3200
3201     # check whether EBP is available on x86
3202     # As 'i' is stored on the stack, this program will crash
3203     # if the base pointer is used to access it because the
3204     # base pointer is cleared in the inline assembly code.
3205     check_exec_crash <<EOF && enable ebp_available
3206     volatile int i=0;
3207     __asm__ volatile (
3208         "xorl %%ebp, %%ebp"
3209     ::: "%ebp");
3210     return i;
3211 EOF
3212
3213     # check whether EBX is available on x86
3214     check_inline_asm ebx_available '""::"b"(0)' &&
3215         check_inline_asm ebx_available '"":::"%ebx"'
3216
3217     # check whether xmm clobbers are supported
3218     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3219
3220     # check whether binutils is new enough to compile SSSE3/MMXEXT
3221     enabled ssse3  && check_inline_asm ssse3  '"pabsw %xmm0, %xmm0"'
3222     enabled mmxext && check_inline_asm mmxext '"pmaxub %mm0, %mm1"'
3223
3224     if ! disabled_any asm mmx yasm; then
3225         if check_cmd $yasmexe --version; then
3226             enabled x86_64 && yasm_extra="-m amd64"
3227             yasm_debug="-g dwarf2"
3228         elif check_cmd nasm -v; then
3229             yasmexe=nasm
3230             yasm_debug="-g -F dwarf"
3231             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3232         fi
3233
3234         YASMFLAGS="-f $objformat $yasm_extra"
3235         enabled pic               && append YASMFLAGS "-DPIC"
3236         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3237         case "$objformat" in
3238             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3239         esac
3240
3241         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3242             die "yasm not found, use --disable-yasm for a crippled build"
3243         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3244         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4
3245         check_yasm "CPU amdnop" && enable cpunop
3246     fi
3247
3248     case "$cpu" in
3249         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3250             disable fast_clz
3251         ;;
3252     esac
3253
3254 fi
3255
3256 if enabled asm; then
3257     as=${gas:=$as}
3258     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3259         $nogas "GNU assembler not found, install gas-preprocessor"
3260 fi
3261
3262 check_ldflags -Wl,--as-needed
3263
3264 if check_func dlopen; then
3265     ldl=
3266 elif check_func dlopen -ldl; then
3267     ldl=-ldl
3268 fi
3269
3270 if enabled network; then
3271     check_type "sys/types.h sys/socket.h" socklen_t
3272     check_type netdb.h "struct addrinfo"
3273     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3274     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3275     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3276     check_type netinet/in.h "struct sockaddr_in6"
3277     check_type poll.h "struct pollfd"
3278     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3279     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3280     check_type netinet/sctp.h "struct sctp_event_subscribe"
3281     check_func getaddrinfo $network_extralibs
3282     # Prefer arpa/inet.h over winsock2
3283     if check_header arpa/inet.h ; then
3284         check_func closesocket
3285     elif check_header winsock2.h ; then
3286         check_func_headers winsock2.h closesocket -lws2 &&
3287             network_extralibs="-lws2" ||
3288         { check_func_headers winsock2.h closesocket -lws2_32 &&
3289             network_extralibs="-lws2_32"; }
3290         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3291         check_type ws2tcpip.h socklen_t
3292         check_type ws2tcpip.h "struct addrinfo"
3293         check_type ws2tcpip.h "struct group_source_req"
3294         check_type ws2tcpip.h "struct ip_mreq_source"
3295         check_type ws2tcpip.h "struct ipv6_mreq"
3296         check_type winsock2.h "struct pollfd"
3297         check_type ws2tcpip.h "struct sockaddr_in6"
3298         check_type ws2tcpip.h "struct sockaddr_storage"
3299         check_struct winsock2.h "struct sockaddr" sa_len
3300     else
3301         disable network
3302     fi
3303 fi
3304
3305 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3306 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3307
3308 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3309 check_func  fcntl
3310 check_func  fork
3311 check_func  gethrtime
3312 check_func  getopt
3313 check_func  getrusage
3314 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3315 check_func  gettimeofday
3316 check_func  inet_aton $network_extralibs
3317 check_func  isatty
3318 check_func  localtime_r
3319 check_func  ${malloc_prefix}memalign            && enable memalign
3320 check_func  mkstemp
3321 check_func  mmap
3322 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3323 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3324 check_func  setrlimit
3325 check_func  strerror_r
3326 check_func  strptime
3327 check_func  sched_getaffinity
3328 check_func  sysconf
3329 check_func  sysctl
3330 check_func  usleep
3331 check_func_headers conio.h kbhit
3332 check_func_headers windows.h PeekNamedPipe
3333 check_func_headers io.h setmode
3334 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3335 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3336 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3337 check_func_headers windows.h GetProcessAffinityMask
3338 check_func_headers windows.h GetProcessTimes
3339 check_func_headers windows.h GetSystemTimeAsFileTime
3340 check_func_headers windows.h MapViewOfFile
3341 check_func_headers windows.h Sleep
3342 check_func_headers windows.h VirtualAlloc
3343 check_func_headers glob.h glob
3344
3345 check_header dlfcn.h
3346 check_header dxva.h
3347 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3348 check_header libcrystalhd/libcrystalhd_if.h
3349 check_header malloc.h
3350 check_header poll.h
3351 check_header sys/mman.h
3352 check_header sys/param.h
3353 check_header sys/resource.h
3354 check_header sys/select.h
3355 check_header sys/time.h
3356 check_header termios.h
3357 check_header unistd.h
3358 check_header vdpau/vdpau.h
3359 check_header vdpau/vdpau_x11.h
3360 check_header windows.h
3361 check_header X11/extensions/XvMClib.h
3362 check_header asm/types.h
3363
3364 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3365 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3366
3367 # check for VDA header
3368 if ! disabled vda; then
3369     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3370         enable vda
3371         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3372     fi
3373 fi
3374
3375 if ! disabled w32threads && ! enabled pthreads; then
3376     check_func _beginthreadex && enable w32threads
3377 fi
3378
3379 # check for some common methods of building with pthread support
3380 # do this before the optional library checks as some of them require pthreads
3381 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3382     enable pthreads
3383     if check_func pthread_create; then
3384         :
3385     elif check_func pthread_create -pthread; then
3386         add_cflags -pthread
3387         add_extralibs -pthread
3388     elif check_func pthread_create -pthreads; then
3389         add_cflags -pthreads
3390         add_extralibs -pthreads
3391     elif check_func pthread_create -lpthreadGC2; then
3392         add_extralibs -lpthreadGC2
3393     elif ! check_lib pthread.h pthread_create -lpthread; then
3394         disable pthreads
3395     fi
3396 fi
3397
3398 for thread in $THREADS_LIST; do
3399     if enabled $thread; then
3400         test -n "$thread_type" &&
3401             die "ERROR: Only one thread type must be selected." ||
3402             thread_type="$thread"
3403     fi
3404 done
3405
3406 if enabled pthreads; then
3407   check_func pthread_cancel
3408 fi
3409
3410 check_lib math.h sin -lm && LIBM="-lm"
3411 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3412 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3413
3414 check_mathfunc cbrtf
3415 check_mathfunc exp2
3416 check_mathfunc exp2f
3417 check_mathfunc isinf
3418 check_mathfunc isnan
3419 check_mathfunc llrint
3420 check_mathfunc llrintf
3421 check_mathfunc log2
3422 check_mathfunc log2f
3423 check_mathfunc lrint
3424 check_mathfunc lrintf
3425 check_mathfunc rint
3426 check_mathfunc round
3427 check_mathfunc roundf
3428 check_mathfunc trunc
3429 check_mathfunc truncf
3430
3431 # these are off by default, so fail if requested and not available
3432 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3433 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3434 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3435 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3436 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3437 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3438 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3439 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3440 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3441                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3442                         die "ERROR: libcelt version must be >= 0.11.0."; }
3443 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3444 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3445 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3446 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"
3447 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3448 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3449 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3450 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3451 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3452 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3453 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3454 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3455 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3456 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3457 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3458 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3459 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3460 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3461 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3462 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3463 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3464     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3465     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3466 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3467 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3468                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3469                         die "ERROR: libtwolame version must be >= 0.3.10"; }
3470 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3471 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3472 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3473 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3474 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3475 enabled libvpx     && {
3476     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3477                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3478     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3479                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3480 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3481                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3482                         die "ERROR: libx264 version must be >= 0.118."; }
3483 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3484 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3485 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3486                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3487                         die "ERROR: openal not found"; } &&
3488                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3489                         die "ERROR: openal version must be 1.1 or compatible"; }
3490 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3491                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3492                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3493                         die "ERROR: openssl not found"; }
3494
3495 if enabled gnutls; then
3496     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3497     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3498 fi
3499
3500 # libdc1394 check
3501 if enabled libdc1394; then
3502     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3503         enable libdc1394_2; } ||
3504     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3505         enable libdc1394_1; } ||
3506     die "ERROR: No version of libdc1394 found "
3507 fi
3508
3509 SDL_CONFIG="${cross_prefix}sdl-config"
3510 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3511     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3512     enable sdl &&
3513     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3514 else
3515   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3516     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3517     sdl_libs=$("${SDL_CONFIG}" --libs)
3518     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3519     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3520     enable sdl &&
3521     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3522   fi
3523 fi
3524 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3525
3526 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3527 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3528 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3529
3530 check_header linux/fb.h
3531 check_header linux/videodev.h
3532 check_header linux/videodev2.h
3533 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3534
3535 check_header sys/videoio.h
3536
3537 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3538 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3539 # w32api 3.12 had it defined wrong
3540 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3541
3542 check_type "dshow.h" IBaseFilter
3543
3544 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3545 { check_header dev/bktr/ioctl_meteor.h &&
3546   check_header dev/bktr/ioctl_bt848.h; } ||
3547 { check_header machine/ioctl_meteor.h &&
3548   check_header machine/ioctl_bt848.h; } ||
3549 { check_header dev/video/meteor/ioctl_meteor.h &&
3550   check_header dev/video/bktr/ioctl_bt848.h; } ||
3551 check_header dev/ic/bt8xx.h
3552
3553 check_header sndio.h
3554 if check_struct sys/soundcard.h audio_buf_info bytes; then
3555     enable_safe sys/soundcard.h
3556 else
3557     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3558     #include <sys/soundcard.h>
3559     audio_buf_info abc;
3560 EOF
3561 fi
3562 check_header soundcard.h
3563
3564 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3565
3566 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3567     check_func jack_port_get_latency_range -ljack
3568
3569 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3570
3571 enabled libcdio &&
3572     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3573
3574 enabled x11grab                                           &&
3575 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3576 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3577 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3578
3579 if ! disabled vaapi; then
3580     check_lib va/va.h vaInitialize -lva && {
3581         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3582         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3583     } || disable vaapi
3584 fi
3585
3586 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3587 check_cpp_condition \
3588     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3589     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3590       disable vdpau; }
3591 fi
3592
3593 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3594 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3595 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"
3596
3597 # add some useful compiler flags if supported
3598 check_cflags -Wdeclaration-after-statement
3599 check_cflags -Wall
3600 check_cflags -Wno-parentheses
3601 check_cflags -Wno-switch
3602 check_cflags -Wno-format-zero-length
3603 check_cflags -Wdisabled-optimization
3604 check_cflags -Wpointer-arith
3605 check_cflags -Wredundant-decls
3606 check_cflags -Wno-pointer-sign
3607 check_cflags -Wwrite-strings
3608 check_cflags -Wtype-limits
3609 check_cflags -Wundef
3610 check_cflags -Wmissing-prototypes
3611 check_cflags -Wno-pointer-to-int-cast
3612 check_cflags -Wstrict-prototypes
3613 enabled extra_warnings && check_cflags -Winline
3614
3615 # add some linker flags
3616 check_ldflags -Wl,--warn-common
3617 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3618 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3619
3620 enabled xmm_clobber_test &&
3621     check_ldflags -Wl,--wrap,avcodec_open2              \
3622                   -Wl,--wrap,avcodec_decode_audio4      \
3623                   -Wl,--wrap,avcodec_decode_video2      \
3624                   -Wl,--wrap,avcodec_decode_subtitle2   \
3625                   -Wl,--wrap,avcodec_encode_audio2      \
3626                   -Wl,--wrap,avcodec_encode_video       \
3627                   -Wl,--wrap,avcodec_encode_subtitle    \
3628                   -Wl,--wrap,sws_scale ||
3629     disable xmm_clobber_test
3630
3631 echo "X{};" > $TMPV
3632 if test_ldflags -Wl,--version-script,$TMPV; then
3633     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3634     check_cc <<EOF && enable symver_asm_label
3635 void ff_foo(void) __asm__ ("av_foo@VERSION");
3636 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3637 EOF
3638     check_cc <<EOF && enable symver_gnu_asm
3639 __asm__(".symver ff_foo,av_foo@VERSION");
3640 void ff_foo(void) {}
3641 EOF
3642 fi
3643
3644 if [ -n "$optflags" ]; then
3645     add_cflags $optflags
3646 elif enabled small; then
3647     add_cflags $cflags_size
3648 elif enabled optimizations; then
3649     add_cflags $cflags_speed
3650 else
3651     add_cflags $cflags_noopt
3652 fi
3653 check_cflags -fno-math-errno
3654 check_cflags -fno-signed-zeros
3655 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3656 int x;
3657 EOF
3658
3659
3660 if enabled icc; then
3661     # Just warnings, no remarks
3662     check_cflags -w1
3663     # -wd: Disable following warnings
3664     # 144, 167, 556: -Wno-pointer-sign
3665     # 1292: attribute "foo" ignored
3666     # 1419: external declaration in primary source file
3667     # 10006: ignoring unknown option -fno-signed-zeros
3668     # 10148: ignoring unknown option -Wno-parentheses
3669     # 10156: ignoring option '-W'; no argument required
3670     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3671     # 11030: Warning unknown option --as-needed
3672     # 10156: ignoring option '-export'; no argument required
3673     check_ldflags -wd10156,11030
3674     # Allow to compile with optimizations
3675     check_ldflags -march=$cpu
3676     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3677     enable ebp_available
3678     if enabled x86_32; then
3679         icc_version=$($cc -dumpversion)
3680         test ${icc_version%%.*} -ge 11 &&
3681             check_cflags -falign-stack=maintain-16-byte ||
3682             disable aligned_stack
3683     fi
3684 elif enabled ccc; then
3685     # disable some annoying warnings
3686     add_cflags -msg_disable cvtu32to64
3687     add_cflags -msg_disable embedcomment
3688     add_cflags -msg_disable needconstext
3689     add_cflags -msg_disable nomainieee
3690     add_cflags -msg_disable ptrmismatch1
3691     add_cflags -msg_disable unreachcode
3692 elif enabled gcc; then
3693     check_cflags -fno-tree-vectorize
3694     check_cflags -Werror=implicit-function-declaration
3695     check_cflags -Werror=missing-prototypes
3696 elif enabled llvm_gcc; then
3697     check_cflags -mllvm -stack-alignment=16
3698 elif enabled clang; then
3699     check_cflags -mllvm -stack-alignment=16
3700     check_cflags -Qunused-arguments
3701 elif enabled armcc; then
3702     # 2523: use of inline assembler is deprecated
3703     add_cflags -W${armcc_opt},--diag_suppress=2523
3704     add_cflags -W${armcc_opt},--diag_suppress=1207
3705     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3706     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3707     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3708     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3709 elif enabled tms470; then
3710     add_cflags -pds=824 -pds=837
3711 elif enabled pathscale; then
3712     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3713 fi
3714
3715 enabled_any $THREADS_LIST      && enable threads
3716
3717 check_deps $CONFIG_LIST       \
3718            $CONFIG_EXTRA      \
3719            $HAVE_LIST         \
3720            $ALL_COMPONENTS    \
3721            $ALL_TESTS         \
3722
3723 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3724
3725 if test $target_os = "haiku"; then
3726     disable memalign
3727     disable posix_memalign
3728 fi
3729
3730 ! enabled_any memalign posix_memalign aligned_malloc &&
3731     enabled_any $need_memalign && enable memalign_hack
3732
3733 # add_dep lib dep
3734 # -> enable ${lib}_deps_${dep}
3735 # -> add $dep to ${lib}_deps only once
3736 add_dep() {
3737     lib=$1
3738     dep=$2
3739     enabled "${lib}_deps_${dep}" && return 0
3740     enable  "${lib}_deps_${dep}"
3741     prepend "${lib}_deps" $dep
3742 }
3743
3744 # merge deps lib components
3745 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3746 merge_deps() {
3747     lib=$1
3748     shift
3749     for comp in $*; do
3750         enabled $comp || continue
3751         eval "dep=\"\$${comp}_deps\""
3752         for d in $dep; do
3753             add_dep $lib $d
3754         done
3755     done
3756 }
3757
3758 merge_deps libavfilter $FILTER_LIST
3759
3760 echo "install prefix            $prefix"
3761 echo "source path               $source_path"
3762 echo "C compiler                $cc"
3763 echo "ARCH                      $arch ($cpu)"
3764 if test "$build_suffix" != ""; then
3765     echo "build suffix              $build_suffix"
3766 fi
3767 if test "$progs_suffix" != ""; then
3768     echo "progs suffix              $progs_suffix"
3769 fi
3770 if test "$extra_version" != ""; then
3771     echo "version string suffix     $extra_version"
3772 fi
3773 echo "big-endian                ${bigendian-no}"
3774 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3775 if enabled x86; then
3776     echo "${yasmexe}                      ${yasm-no}"
3777     echo "MMX enabled               ${mmx-no}"
3778     echo "MMXEXT enabled            ${mmxext-no}"
3779     echo "3DNow! enabled            ${amd3dnow-no}"
3780     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3781     echo "SSE enabled               ${sse-no}"
3782     echo "SSSE3 enabled             ${ssse3-no}"
3783     echo "AVX enabled               ${avx-no}"
3784     echo "FMA4 enabled              ${fma4-no}"
3785     echo "CMOV enabled              ${cmov-no}"
3786     echo "CMOV is fast              ${fast_cmov-no}"
3787     echo "EBX available             ${ebx_available-no}"
3788     echo "EBP available             ${ebp_available-no}"
3789 fi
3790 if enabled arm; then
3791     echo "ARMv5TE enabled           ${armv5te-no}"
3792     echo "ARMv6 enabled             ${armv6-no}"
3793     echo "ARMv6T2 enabled           ${armv6t2-no}"
3794     echo "ARM VFP enabled           ${armvfp-no}"
3795     echo "NEON enabled              ${neon-no}"
3796 fi
3797 if enabled mips; then
3798     echo "MMI enabled               ${mmi-no}"
3799     echo "MIPS FPU enabled          ${mipsfpu-no}"
3800     echo "MIPS32R2 enabled          ${mips32r2-no}"
3801     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3802     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3803 fi
3804 if enabled ppc; then
3805     echo "AltiVec enabled           ${altivec-no}"
3806     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3807     echo "dcbzl available           ${dcbzl-no}"
3808 fi
3809 if enabled sparc; then
3810     echo "VIS enabled               ${vis-no}"
3811 fi
3812 echo "debug symbols             ${debug-no}"
3813 echo "strip symbols             ${stripping-no}"
3814 echo "optimize for size         ${small-no}"
3815 echo "optimizations             ${optimizations-no}"
3816 echo "static                    ${static-no}"
3817 echo "shared                    ${shared-no}"
3818 echo "postprocessing support    ${postproc-no}"
3819 echo "new filter support        ${avfilter-no}"
3820 echo "network support           ${network-no}"
3821 echo "threading support         ${thread_type-no}"
3822 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3823 echo "SDL support               ${sdl-no}"
3824 echo "libdxva2 enabled          ${dxva2-no}"
3825 echo "libva enabled             ${vaapi-no}"
3826 echo "libvdpau enabled          ${vdpau-no}"
3827 echo "AVISynth enabled          ${avisynth-no}"
3828 echo "frei0r enabled            ${frei0r-no}"
3829 echo "gnutls enabled            ${gnutls-no}"
3830 echo "libaacplus enabled        ${libaacplus-no}"
3831 echo "libass enabled            ${libass-no}"
3832 echo "libcaca enabled           ${libcaca-no}"
3833 echo "libcdio support           ${libcdio-no}"
3834 echo "libcelt enabled           ${libcelt-no}"
3835 echo "libdc1394 support         ${libdc1394-no}"
3836 echo "libfaac enabled           ${libfaac-no}"
3837 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3838 echo "libgsm enabled            ${libgsm-no}"
3839 echo "libiec61883 support       ${libiec61883-no}"
3840 echo "libilbc enabled           ${libilbc-no}"
3841 echo "libmodplug enabled        ${libmodplug-no}"
3842 echo "libmp3lame enabled        ${libmp3lame-no}"
3843 echo "libnut enabled            ${libnut-no}"
3844 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3845 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3846 echo "libopencv support         ${libopencv-no}"
3847 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3848 echo "libopus enabled           ${libopus-no}"
3849 echo "libpulse enabled          ${libpulse-no}"
3850 echo "librtmp enabled           ${librtmp-no}"
3851 echo "libschroedinger enabled   ${libschroedinger-no}"
3852 echo "libspeex enabled          ${libspeex-no}"
3853 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3854 echo "libtheora enabled         ${libtheora-no}"
3855 echo "libtwolame enabled        ${libtwolame-no}"
3856 echo "libutvideo enabled        ${libutvideo-no}"
3857 echo "libv4l2 enabled           ${libv4l2-no}"
3858 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3859 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3860 echo "libvorbis enabled         ${libvorbis-no}"
3861 echo "libvpx enabled            ${libvpx-no}"
3862 echo "libx264 enabled           ${libx264-no}"
3863 echo "libxavs enabled           ${libxavs-no}"
3864 echo "libxvid enabled           ${libxvid-no}"
3865 echo "openal enabled            ${openal-no}"
3866 echo "openssl enabled           ${openssl-no}"
3867 echo "zlib enabled              ${zlib-no}"
3868 echo "bzlib enabled             ${bzlib-no}"
3869 echo "texi2html enabled         ${texi2html-no}"
3870 echo "pod2man enabled           ${pod2man-no}"
3871 echo "makeinfo enabled          ${makeinfo-no}"
3872 test -n "$random_seed" &&
3873     echo "random seed               ${random_seed}"
3874 echo
3875
3876 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3877     echo "Enabled ${type}s:"
3878     eval list=\$$(toupper $type)_LIST
3879     print_enabled '_*' $list | sort | pr -r -3 -t
3880     echo
3881 done
3882
3883 license="LGPL version 2.1 or later"
3884 if enabled nonfree; then
3885     license="nonfree and unredistributable"
3886 elif enabled gplv3; then
3887     license="GPL version 3 or later"
3888 elif enabled lgplv3; then
3889     license="LGPL version 3 or later"
3890 elif enabled gpl; then
3891     license="GPL version 2 or later"
3892 fi
3893
3894 echo "License: $license"
3895
3896 echo "Creating config.mak and config.h..."
3897
3898 test -e Makefile || $ln_s "$source_path/Makefile" .
3899
3900 enabled stripping || strip="echo skipping strip"
3901
3902 config_files="$TMPH config.mak"
3903
3904 cat > config.mak <<EOF
3905 # Automatically generated by configure - do not modify!
3906 ifndef FFMPEG_CONFIG_MAK
3907 FFMPEG_CONFIG_MAK=1
3908 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3909 prefix=$prefix
3910 LIBDIR=\$(DESTDIR)$libdir
3911 SHLIBDIR=\$(DESTDIR)$shlibdir
3912 INCDIR=\$(DESTDIR)$incdir
3913 BINDIR=\$(DESTDIR)$bindir
3914 DATADIR=\$(DESTDIR)$datadir
3915 MANDIR=\$(DESTDIR)$mandir
3916 SRC_PATH=$source_path
3917 ifndef MAIN_MAKEFILE
3918 SRC_PATH:=\$(SRC_PATH:.%=..%)
3919 endif
3920 CC_IDENT=$cc_ident
3921 ARCH=$arch
3922 CC=$cc
3923 CXX=$cxx
3924 AS=$as
3925 LD=$ld
3926 DEPCC=$dep_cc
3927 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
3928 DEPAS=$as
3929 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
3930 YASM=$yasmexe
3931 DEPYASM=$yasmexe
3932 AR=$ar
3933 RANLIB=$ranlib
3934 CP=cp -p
3935 LN_S=$ln_s
3936 STRIP=$strip
3937 CPPFLAGS=$CPPFLAGS
3938 CFLAGS=$CFLAGS
3939 CXXFLAGS=$CXXFLAGS
3940 ASFLAGS=$ASFLAGS
3941 AS_C=$AS_C
3942 AS_O=$AS_O
3943 CC_C=$CC_C
3944 CC_O=$CC_O
3945 CXX_C=$CXX_C
3946 CXX_O=$CXX_O
3947 LD_O=$LD_O
3948 DLLTOOL=$dlltool
3949 LDFLAGS=$LDFLAGS
3950 LDFLAGS-ffserver=$FFSERVERLDFLAGS
3951 SHFLAGS=$SHFLAGS
3952 YASMFLAGS=$YASMFLAGS
3953 BUILDSUF=$build_suffix
3954 PROGSSUF=$progs_suffix
3955 FULLNAME=$FULLNAME
3956 LIBPREF=$LIBPREF
3957 LIBSUF=$LIBSUF
3958 LIBNAME=$LIBNAME
3959 SLIBPREF=$SLIBPREF
3960 SLIBSUF=$SLIBSUF
3961 EXESUF=$EXESUF
3962 EXTRA_VERSION=$extra_version
3963 CCDEP=$CCDEP
3964 CXXDEP=$CXXDEP
3965 CCDEP_FLAGS=$CCDEP_FLAGS
3966 ASDEP=$ASDEP
3967 ASDEP_FLAGS=$ASDEP_FLAGS
3968 CC_DEPFLAGS=$CC_DEPFLAGS
3969 AS_DEPFLAGS=$AS_DEPFLAGS
3970 HOSTCC=$host_cc
3971 HOSTCFLAGS=$host_cflags
3972 HOSTEXESUF=$HOSTEXESUF
3973 HOSTLDFLAGS=$host_ldflags
3974 HOSTLIBS=$host_libs
3975 DEPHOSTCC=$host_cc
3976 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
3977 HOSTCCDEP=$HOSTCCDEP
3978 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
3979 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
3980 HOSTCC_C=$HOSTCC_C
3981 HOSTCC_O=$HOSTCC_O
3982 TARGET_EXEC=$target_exec
3983 TARGET_PATH=$target_path
3984 LIBS-ffplay=$sdl_libs
3985 CFLAGS-ffplay=$sdl_cflags
3986 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3987 EXTRALIBS=$extralibs
3988 INSTALL=$install
3989 LIBTARGET=${LIBTARGET}
3990 SLIBNAME=${SLIBNAME}
3991 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3992 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3993 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3994 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3995 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3996 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3997 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3998 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3999 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4000 NOREDZONE_FLAGS=$noredzone_flags
4001 EOF
4002
4003 get_version(){
4004     lcname=$1
4005     name=$(toupper $lcname)
4006     file=$source_path/$lcname/version.h
4007     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4008     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4009     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4010     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4011 }
4012
4013 get_version_old(){