gifdec: pass avctx to av_log()
[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 $TMPC
712 }
713
714 check_asm(){
715     log check_asm "$@"
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_y
1215     asm_types_h
1216     attribute_may_alias
1217     attribute_packed
1218     cbrtf
1219     clock_gettime
1220     closesocket
1221     cmov
1222     cpuid
1223     dcbzl
1224     dev_bktr_ioctl_bt848_h
1225     dev_bktr_ioctl_meteor_h
1226     dev_ic_bt8xx_h
1227     dev_video_bktr_ioctl_bt848_h
1228     dev_video_meteor_ioctl_meteor_h
1229     dlfcn_h
1230     dlopen
1231     dos_paths
1232     dxva_h
1233     ebp_available
1234     ebx_available
1235     exp2
1236     exp2f
1237     fast_64bit
1238     fast_clz
1239     fast_cmov
1240     fcntl
1241     fork
1242     getaddrinfo
1243     gethrtime
1244     getopt
1245     GetProcessAffinityMask
1246     GetProcessMemoryInfo
1247     GetProcessTimes
1248     GetSystemTimeAsFileTime
1249     getrusage
1250     gettimeofday
1251     glob
1252     gnu_as
1253     ibm_asm
1254     inet_aton
1255     inline_asm
1256     isatty
1257     isinf
1258     isnan
1259     jack_port_get_latency_range
1260     kbhit
1261     ldbrx
1262     libdc1394_1
1263     libdc1394_2
1264     llrint
1265     llrintf
1266     local_aligned_16
1267     local_aligned_8
1268     localtime_r
1269     log2
1270     log2f
1271     loongson
1272     lrint
1273     lrintf
1274     lzo1x_999_compress
1275     machine_ioctl_bt848_h
1276     machine_ioctl_meteor_h
1277     makeinfo
1278     malloc_h
1279     MapViewOfFile
1280     memalign
1281     mkstemp
1282     mm_empty
1283     mmap
1284     nanosleep
1285     netinet_sctp_h
1286     PeekNamedPipe
1287     pod2man
1288     poll_h
1289     posix_memalign
1290     pthread_cancel
1291     rdtsc
1292     rint
1293     round
1294     roundf
1295     rweflags
1296     sched_getaffinity
1297     sdl
1298     sdl_video_size
1299     setmode
1300     setrlimit
1301     Sleep
1302     sndio_h
1303     socklen_t
1304     soundcard_h
1305     strerror_r
1306     strptime
1307     struct_addrinfo
1308     struct_group_source_req
1309     struct_ip_mreq_source
1310     struct_ipv6_mreq
1311     struct_pollfd
1312     struct_rusage_ru_maxrss
1313     struct_sockaddr_in6
1314     struct_sockaddr_sa_len
1315     struct_sockaddr_storage
1316     struct_v4l2_frmivalenum_discrete
1317     symver
1318     symver_asm_label
1319     symver_gnu_asm
1320     sysconf
1321     sysctl
1322     sys_mman_h
1323     sys_param_h
1324     sys_resource_h
1325     sys_select_h
1326     sys_soundcard_h
1327     sys_time_h
1328     sys_videoio_h
1329     termios_h
1330     texi2html
1331     threads
1332     trunc
1333     truncf
1334     unistd_h
1335     usleep
1336     vfp_args
1337     VirtualAlloc
1338     windows_h
1339     winsock2_h
1340     xform_asm
1341     xgetbv
1342     xmm_clobbers
1343     yasm
1344 "
1345
1346 # options emitted with CONFIG_ prefix but not available on command line
1347 CONFIG_EXTRA="
1348     aandcttables
1349     ac3dsp
1350     avutil
1351     gcrypt
1352     golomb
1353     gplv3
1354     h264chroma
1355     h264dsp
1356     h264pred
1357     h264qpel
1358     huffman
1359     lgplv3
1360     lpc
1361     mpegaudiodsp
1362     nettle
1363     rtpdec
1364     sinewin
1365     vp3dsp
1366 "
1367
1368 CMDLINE_SELECT="
1369     $ARCH_EXT_LIST
1370     $CONFIG_LIST
1371     $THREADS_LIST
1372     asm
1373     coverage
1374     cross_compile
1375     debug
1376     extra_warnings
1377     logging
1378     optimizations
1379     stripping
1380     symver
1381     yasm
1382 "
1383
1384 PATHS_LIST='
1385     bindir
1386     datadir
1387     incdir
1388     libdir
1389     mandir
1390     prefix
1391     shlibdir
1392 '
1393
1394 CMDLINE_SET="
1395     $PATHS_LIST
1396     ar
1397     arch
1398     as
1399     assert_level
1400     build_suffix
1401     cc
1402     cpu
1403     cross_prefix
1404     cxx
1405     dep_cc
1406     extra_version
1407     host_cc
1408     host_cflags
1409     host_ldflags
1410     host_libs
1411     host_os
1412     install
1413     ld
1414     logfile
1415     malloc_prefix
1416     nm
1417     optflags
1418     pkg_config
1419     postproc_version
1420     progs_suffix
1421     random_seed
1422     samples
1423     strip
1424     sysinclude
1425     sysroot
1426     target_exec
1427     target_os
1428     target_path
1429     valgrind
1430     yasmexe
1431 "
1432
1433 CMDLINE_APPEND="
1434     extra_cflags
1435     extra_cxxflags
1436 "
1437
1438 # code dependency declarations
1439
1440 # architecture extensions
1441
1442 armv5te_deps="arm"
1443 armv6_deps="arm"
1444 armv6t2_deps="arm"
1445 armvfp_deps="arm"
1446 neon_deps="arm"
1447 vfpv3_deps="armvfp"
1448
1449 mipsfpu_deps="mips"
1450 mips32r2_deps="mips"
1451 mipsdspr1_deps="mips"
1452 mipsdspr2_deps="mips"
1453 mmi_deps="mips"
1454
1455 altivec_deps="ppc"
1456 ppc4xx_deps="ppc"
1457
1458 vis_deps="sparc"
1459
1460 x86_64_suggest="cmov fast_cmov"
1461 amd3dnow_deps="mmx"
1462 amd3dnowext_deps="amd3dnow"
1463 mmx_deps="x86"
1464 mmxext_deps="mmx"
1465 sse_deps="mmx"
1466 ssse3_deps="sse"
1467 avx_deps="ssse3"
1468 fma4_deps="avx"
1469
1470 aligned_stack_if_any="ppc x86"
1471 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1472 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1473 fast_unaligned_if_any="armv6 ppc x86"
1474
1475 inline_asm_deps="!tms470"
1476 need_memalign="altivec neon sse"
1477
1478 symver_if_any="symver_asm_label symver_gnu_asm"
1479
1480 # subsystems
1481 dct_select="rdft"
1482 mdct_select="fft"
1483 rdft_select="fft"
1484 mpegaudiodsp_select="dct"
1485
1486 # decoders / encoders / hardware accelerators
1487 aac_decoder_select="mdct sinewin"
1488 aac_encoder_select="mdct sinewin"
1489 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1490 ac3_decoder_select="mdct ac3dsp ac3_parser"
1491 ac3_encoder_select="mdct ac3dsp"
1492 ac3_fixed_encoder_select="mdct ac3dsp"
1493 alac_encoder_select="lpc"
1494 amrnb_decoder_select="lsp"
1495 amrwb_decoder_select="lsp"
1496 amv_encoder_select="aandcttables"
1497 atrac1_decoder_select="mdct sinewin"
1498 atrac3_decoder_select="mdct"
1499 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1500 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1501 cavs_decoder_select="golomb"
1502 cook_decoder_select="mdct sinewin"
1503 cscd_decoder_suggest="zlib"
1504 dca_decoder_select="mdct"
1505 dirac_decoder_select="dwt golomb"
1506 dnxhd_encoder_select="aandcttables"
1507 dxa_decoder_select="zlib"
1508 eac3_decoder_select="ac3_decoder"
1509 eac3_encoder_select="mdct ac3dsp"
1510 eamad_decoder_select="aandcttables"
1511 eatgq_decoder_select="aandcttables"
1512 eatqi_decoder_select="aandcttables"
1513 exr_decoder_select="zlib"
1514 ffv1_decoder_select="golomb"
1515 flac_decoder_select="golomb"
1516 flac_encoder_select="golomb lpc"
1517 flashsv_decoder_select="zlib"
1518 flashsv_encoder_select="zlib"
1519 flashsv2_encoder_select="zlib"
1520 flashsv2_decoder_select="zlib"
1521 flv_decoder_select="h263_decoder"
1522 flv_encoder_select="h263_encoder"
1523 fraps_decoder_select="huffman"
1524 h261_encoder_select="aandcttables"
1525 h263_decoder_select="h263_parser"
1526 h263_encoder_select="aandcttables"
1527 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1528 h263i_decoder_select="h263_decoder"
1529 h263p_encoder_select="h263_encoder"
1530 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1531 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1532 h264_dxva2_hwaccel_deps="dxva2api_h"
1533 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1534 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1535 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1536 h264_vda_hwaccel_select="vda h264_decoder"
1537 h264_vdpau_decoder_select="vdpau h264_decoder"
1538 iac_decoder_select="fft mdct sinewin"
1539 imc_decoder_select="fft mdct sinewin"
1540 jpegls_decoder_select="golomb"
1541 jpegls_encoder_select="golomb"
1542 ljpeg_encoder_select="aandcttables"
1543 loco_decoder_select="golomb"
1544 mjpeg_encoder_select="aandcttables"
1545 mlp_decoder_select="mlp_parser"
1546 mp1_decoder_select="mpegaudiodsp"
1547 mp1float_decoder_select="mpegaudiodsp"
1548 mp2_decoder_select="mpegaudiodsp"
1549 mp2float_decoder_select="mpegaudiodsp"
1550 mp3_decoder_select="mpegaudiodsp"
1551 mp3adu_decoder_select="mpegaudiodsp"
1552 mp3adufloat_decoder_select="mpegaudiodsp"
1553 mp3float_decoder_select="mpegaudiodsp"
1554 mp3on4_decoder_select="mpegaudiodsp"
1555 mp3on4float_decoder_select="mpegaudiodsp"
1556 mpc7_decoder_select="mpegaudiodsp"
1557 mpc8_decoder_select="mpegaudiodsp"
1558 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1559 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1560 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1561 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1562 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1563 mpeg1video_encoder_select="aandcttables"
1564 mpeg2_crystalhd_decoder_select="crystalhd"
1565 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1566 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1567 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1568 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1569 mpeg2video_encoder_select="aandcttables"
1570 mpeg4_crystalhd_decoder_select="crystalhd"
1571 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1572 mpeg4_encoder_select="h263_encoder"
1573 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1574 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1575 msmpeg4_crystalhd_decoder_select="crystalhd"
1576 msmpeg4v1_decoder_select="h263_decoder"
1577 msmpeg4v1_encoder_select="h263_encoder"
1578 msmpeg4v2_decoder_select="h263_decoder"
1579 msmpeg4v2_encoder_select="h263_encoder"
1580 msmpeg4v3_decoder_select="h263_decoder"
1581 msmpeg4v3_encoder_select="h263_encoder"
1582 nellymoser_decoder_select="mdct sinewin"
1583 nellymoser_encoder_select="mdct sinewin"
1584 png_decoder_select="zlib"
1585 png_encoder_select="zlib"
1586 qcelp_decoder_select="lsp"
1587 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1588 ra_144_encoder_select="lpc"
1589 ralf_decoder_select="golomb"
1590 rv10_decoder_select="h263_decoder"
1591 rv10_encoder_select="h263_encoder"
1592 rv20_decoder_select="h263_decoder"
1593 rv20_encoder_select="h263_encoder"
1594 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1595 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1596 shorten_decoder_select="golomb"
1597 sipr_decoder_select="lsp"
1598 snow_decoder_select="dwt"
1599 snow_encoder_select="aandcttables dwt"
1600 sonic_decoder_select="golomb"
1601 sonic_encoder_select="golomb"
1602 sonic_ls_encoder_select="golomb"
1603 svq1_encoder_select="aandcttables"
1604 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1605 svq3_decoder_suggest="zlib"
1606 theora_decoder_select="vp3_decoder"
1607 tiff_decoder_suggest="zlib"
1608 tiff_encoder_suggest="zlib"
1609 tscc_decoder_select="zlib"
1610 twinvq_decoder_select="mdct lsp sinewin"
1611 vc1_crystalhd_decoder_select="crystalhd"
1612 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1613 vc1_dxva2_hwaccel_deps="dxva2api_h"
1614 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1615 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1616 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1617 vc1image_decoder_select="vc1_decoder"
1618 vorbis_decoder_select="mdct"
1619 vorbis_encoder_select="mdct"
1620 vp3_decoder_select="vp3dsp"
1621 vp5_decoder_select="vp3dsp"
1622 vp6_decoder_select="huffman vp3dsp"
1623 vp6a_decoder_select="vp6_decoder"
1624 vp6f_decoder_select="vp6_decoder"
1625 vp8_decoder_select="h264pred h264qpel"
1626 wmapro_decoder_select="mdct sinewin"
1627 wmav1_decoder_select="mdct sinewin"
1628 wmav1_encoder_select="mdct sinewin"
1629 wmav2_decoder_select="mdct sinewin"
1630 wmav2_encoder_select="mdct sinewin"
1631 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1632 wmv1_decoder_select="h263_decoder"
1633 wmv1_encoder_select="h263_encoder"
1634 wmv2_decoder_select="h263_decoder"
1635 wmv2_encoder_select="h263_encoder"
1636 wmv3_decoder_select="vc1_decoder"
1637 wmv3_crystalhd_decoder_select="crystalhd"
1638 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1639 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1640 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1641 wmv3image_decoder_select="wmv3_decoder"
1642 zerocodec_decoder_select="zlib"
1643 zlib_decoder_select="zlib"
1644 zlib_encoder_select="zlib"
1645 zmbv_decoder_select="zlib"
1646 zmbv_encoder_select="zlib"
1647
1648 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1649 vaapi_deps="va_va_h"
1650 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1651 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1652
1653 # parsers
1654 h264_parser_select="golomb h264dsp h264pred"
1655
1656 # external libraries
1657 libaacplus_encoder_deps="libaacplus"
1658 libcelt_decoder_deps="libcelt"
1659 libfaac_encoder_deps="libfaac"
1660 libfdk_aac_encoder_deps="libfdk_aac"
1661 libgsm_decoder_deps="libgsm"
1662 libgsm_encoder_deps="libgsm"
1663 libgsm_ms_decoder_deps="libgsm"
1664 libgsm_ms_encoder_deps="libgsm"
1665 libilbc_decoder_deps="libilbc"
1666 libilbc_encoder_deps="libilbc"
1667 libmodplug_demuxer_deps="libmodplug"
1668 libmp3lame_encoder_deps="libmp3lame"
1669 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1670 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1671 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1672 libopenjpeg_decoder_deps="libopenjpeg"
1673 libopenjpeg_encoder_deps="libopenjpeg"
1674 libopus_decoder_deps="libopus"
1675 libschroedinger_decoder_deps="libschroedinger"
1676 libschroedinger_encoder_deps="libschroedinger"
1677 libspeex_decoder_deps="libspeex"
1678 libspeex_encoder_deps="libspeex"
1679 libstagefright_h264_decoder_deps="libstagefright_h264"
1680 libtheora_encoder_deps="libtheora"
1681 libtwolame_encoder_deps="libtwolame"
1682 libvo_aacenc_encoder_deps="libvo_aacenc"
1683 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1684 libvorbis_decoder_deps="libvorbis"
1685 libvorbis_encoder_deps="libvorbis"
1686 libvpx_decoder_deps="libvpx"
1687 libvpx_encoder_deps="libvpx"
1688 libx264_encoder_deps="libx264"
1689 libx264rgb_encoder_deps="libx264"
1690 libxavs_encoder_deps="libxavs"
1691 libxvid_encoder_deps="libxvid"
1692 libutvideo_decoder_deps="libutvideo"
1693 libutvideo_encoder_deps="libutvideo"
1694
1695 # demuxers / muxers
1696 ac3_demuxer_select="ac3_parser"
1697 asf_stream_muxer_select="asf_muxer"
1698 avisynth_demuxer_deps="avisynth"
1699 dirac_demuxer_select="dirac_parser"
1700 eac3_demuxer_select="ac3_parser"
1701 flac_demuxer_select="flac_parser"
1702 ipod_muxer_select="mov_muxer"
1703 libnut_demuxer_deps="libnut"
1704 libnut_muxer_deps="libnut"
1705 matroska_audio_muxer_select="matroska_muxer"
1706 matroska_demuxer_suggest="zlib bzlib"
1707 mov_demuxer_suggest="zlib"
1708 mp3_demuxer_select="mpegaudio_parser"
1709 mp4_muxer_select="mov_muxer"
1710 mpegts_muxer_select="adts_muxer latm_muxer"
1711 mpegtsraw_demuxer_select="mpegts_demuxer"
1712 mxf_d10_muxer_select="mxf_muxer"
1713 ogg_demuxer_select="golomb"
1714 psp_muxer_select="mov_muxer"
1715 rtp_demuxer_select="sdp_demuxer"
1716 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1717 rtsp_demuxer_select="http_protocol rtpdec"
1718 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1719 sap_demuxer_select="sdp_demuxer"
1720 sap_muxer_select="rtp_muxer rtp_protocol"
1721 sdp_demuxer_select="rtpdec"
1722 spdif_muxer_select="aac_parser"
1723 tg2_muxer_select="mov_muxer"
1724 tgp_muxer_select="mov_muxer"
1725 w64_demuxer_deps="wav_demuxer"
1726
1727 # indevs / outdevs
1728 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1729 alsa_outdev_deps="alsa_asoundlib_h"
1730 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1731 caca_outdev_deps="libcaca"
1732 dshow_indev_deps="IBaseFilter"
1733 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1734 dv1394_indev_deps="dv1394 dv_demuxer"
1735 fbdev_indev_deps="linux_fb_h"
1736 iec61883_indev_deps="libiec61883"
1737 jack_indev_deps="jack_jack_h sem_timedwait"
1738 lavfi_indev_deps="avfilter"
1739 libcdio_indev_deps="libcdio"
1740 libdc1394_indev_deps="libdc1394"
1741 libv4l2_indev_deps="libv4l2"
1742 openal_indev_deps="openal"
1743 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1744 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1745 pulse_indev_deps="libpulse"
1746 sdl_outdev_deps="sdl"
1747 sndio_indev_deps="sndio_h"
1748 sndio_outdev_deps="sndio_h"
1749 v4l_indev_deps="linux_videodev_h"
1750 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1751 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1752 vfwcap_indev_extralibs="-lavicap32"
1753 x11grab_indev_deps="x11grab"
1754
1755 # protocols
1756 bluray_protocol_deps="libbluray"
1757 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1758 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1759 ffrtmpcrypt_protocol_select="tcp_protocol"
1760 ffrtmphttp_protocol_deps="!librtmp_protocol"
1761 ffrtmphttp_protocol_select="http_protocol"
1762 gopher_protocol_deps="network"
1763 httpproxy_protocol_deps="network"
1764 httpproxy_protocol_select="tcp_protocol"
1765 http_protocol_deps="network"
1766 http_protocol_select="tcp_protocol"
1767 https_protocol_select="tls_protocol"
1768 librtmp_protocol_deps="librtmp"
1769 librtmpe_protocol_deps="librtmp"
1770 librtmps_protocol_deps="librtmp"
1771 librtmpt_protocol_deps="librtmp"
1772 librtmpte_protocol_deps="librtmp"
1773 mmsh_protocol_select="http_protocol"
1774 mmst_protocol_deps="network"
1775 rtmp_protocol_deps="!librtmp_protocol"
1776 rtmp_protocol_select="tcp_protocol"
1777 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1778 rtmps_protocol_deps="!librtmp_protocol"
1779 rtmps_protocol_select="tls_protocol"
1780 rtmpt_protocol_select="ffrtmphttp_protocol"
1781 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1782 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1783 rtp_protocol_select="udp_protocol"
1784 sctp_protocol_deps="network netinet_sctp_h"
1785 tcp_protocol_deps="network"
1786 tls_protocol_deps_any="openssl gnutls"
1787 tls_protocol_select="tcp_protocol"
1788 udp_protocol_deps="network"
1789
1790 # filters
1791 aconvert_filter_deps="swresample"
1792 amovie_filter_deps="avcodec avformat"
1793 aresample_filter_deps="swresample"
1794 ass_filter_deps="libass"
1795 asyncts_filter_deps="avresample"
1796 atempo_filter_deps="avcodec rdft"
1797 blackframe_filter_deps="gpl"
1798 boxblur_filter_deps="gpl"
1799 colormatrix_filter_deps="gpl"
1800 cropdetect_filter_deps="gpl"
1801 delogo_filter_deps="gpl"
1802 deshake_filter_deps="avcodec"
1803 drawtext_filter_deps="libfreetype"
1804 flite_filter_deps="libflite"
1805 frei0r_filter_deps="frei0r dlopen"
1806 frei0r_filter_extralibs='$ldl'
1807 frei0r_src_filter_deps="frei0r dlopen"
1808 frei0r_src_filter_extralibs='$ldl'
1809 hqdn3d_filter_deps="gpl"
1810 movie_filter_deps="avcodec avformat"
1811 mp_filter_deps="gpl avcodec swscale postproc"
1812 mptestsrc_filter_deps="gpl"
1813 negate_filter_deps="lut_filter"
1814 resample_filter_deps="avresample"
1815 ocv_filter_deps="libopencv"
1816 pan_filter_deps="swresample"
1817 removelogo_filter_deps="avcodec avformat swscale"
1818 scale_filter_deps="swscale"
1819 select_filter_deps="avcodec"
1820 super2xsai_filter_deps="gpl"
1821 tinterlace_filter_deps="gpl"
1822 yadif_filter_deps="gpl"
1823
1824 # libraries
1825 avdevice_deps="avcodec avformat"
1826 avformat_deps="avcodec"
1827 postproc_deps="gpl"
1828
1829 # programs
1830 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1831 ffmpeg_select="buffersink_filter format_filter aformat_filter
1832                setpts_filter null_filter anull_filter abuffersink_filter"
1833 ffplay_deps="avcodec avformat swscale swresample sdl"
1834 ffplay_select="buffersink_filter rdft"
1835 ffprobe_deps="avcodec avformat"
1836 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1837 ffserver_extralibs='$ldl'
1838
1839 doc_deps_any="texi2html makeinfo pod2man"
1840
1841 # tests
1842 colormatrix1_test_deps="colormatrix_filter"
1843 colormatrix2_test_deps="colormatrix_filter"
1844 flashsv2_test_deps="zlib"
1845 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1846 mpng_test_deps="zlib"
1847 pp_test_deps="mp_filter"
1848 pp2_test_deps="mp_filter"
1849 pp3_test_deps="mp_filter"
1850 pp4_test_deps="mp_filter"
1851 pp5_test_deps="mp_filter"
1852 pp6_test_deps="mp_filter"
1853 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1854 zlib_test_deps="zlib"
1855 zmbv_test_deps="zlib"
1856
1857 test_deps(){
1858     suf1=$1
1859     suf2=$2
1860     shift 2
1861     for v; do
1862         dep=${v%=*}
1863         tests=${v#*=}
1864         for name in ${tests}; do
1865             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1866         done
1867     done
1868 }
1869
1870 test_deps _muxer _demuxer                                               \
1871     aiff                                                                \
1872     pcm_alaw=alaw                                                       \
1873     asf                                                                 \
1874     au                                                                  \
1875     avi                                                                 \
1876     dv=dv_fmt                                                           \
1877     ffm                                                                 \
1878     flv=flv_fmt                                                         \
1879     gxf                                                                 \
1880     matroska=mkv                                                        \
1881     mmf                                                                 \
1882     mov="mov ismv"                                                      \
1883     pcm_mulaw=mulaw                                                     \
1884     mxf="mxf mxf_d10"                                                   \
1885     nut                                                                 \
1886     ogg="ogg ogg_vp3"                                                   \
1887     rawvideo=pixfmt                                                     \
1888     rm                                                                  \
1889     swf                                                                 \
1890     mpegts=ts                                                           \
1891     voc                                                                 \
1892     wav                                                                 \
1893     yuv4mpegpipe=yuv4mpeg                                               \
1894
1895 # default parameters
1896
1897 logfile="config.log"
1898
1899 # installation paths
1900 prefix_default="/usr/local"
1901 bindir_default='${prefix}/bin'
1902 datadir_default='${prefix}/share/ffmpeg'
1903 incdir_default='${prefix}/include'
1904 libdir_default='${prefix}/lib'
1905 mandir_default='${prefix}/share/man'
1906 shlibdir_default="$libdir_default"
1907 postproc_version_default="current"
1908
1909 # toolchain
1910 ar_default="ar"
1911 cc_default="gcc"
1912 cxx_default="g++"
1913 host_cc_default="gcc"
1914 install="install"
1915 ln_s="ln -sf"
1916 nm_default="nm"
1917 objformat="elf"
1918 pkg_config_default=pkg-config
1919 ranlib="ranlib"
1920 strip_default="strip"
1921 yasmexe_default="yasm"
1922
1923 nm_opts='-g'
1924 nogas=":"
1925
1926 # machine
1927 arch_default=$(uname -m)
1928 cpu="generic"
1929
1930 # OS
1931 target_os_default=$(tolower $(uname -s))
1932 host_os=$target_os_default
1933
1934 # alternative libpostproc version
1935 ALT_PP_VER_MAJOR=51
1936 ALT_PP_VER_MINOR=2
1937 ALT_PP_VER_MICRO=101
1938 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1939
1940 # configurable options
1941 enable $PROGRAM_LIST
1942
1943 enable avcodec
1944 enable avdevice
1945 enable avfilter
1946 enable avformat
1947 enable avutil
1948 enable postproc
1949 enable stripping
1950 enable swresample
1951 enable swscale
1952
1953 enable asm
1954 enable debug
1955 enable doc
1956 enable fastdiv
1957 enable network
1958 enable optimizations
1959 enable safe_bitstream_reader
1960 enable static
1961 enable swscale_alpha
1962
1963 # build settings
1964 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1965 FFSERVERLDFLAGS=-Wl,-E
1966 LIBPREF="lib"
1967 LIBSUF=".a"
1968 FULLNAME='$(NAME)$(BUILDSUF)'
1969 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1970 SLIBPREF="lib"
1971 SLIBSUF=".so"
1972 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1973 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1974 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1975 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1976 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1977 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1978
1979 asflags_filter=echo
1980 cflags_filter=echo
1981 ldflags_filter=echo
1982
1983 AS_C='-c'
1984 AS_O='-o $@'
1985 CC_C='-c'
1986 CC_E='-E -o $@'
1987 CC_O='-o $@'
1988 CXX_C='-c'
1989 CXX_O='-o $@'
1990 LD_O='-o $@'
1991 HOSTCC_C='-c'
1992 HOSTCC_O='-o $@'
1993
1994 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1995 host_libs='-lm'
1996 host_cflags_filter=echo
1997 host_ldflags_filter=echo
1998
1999 target_path='$(CURDIR)'
2000
2001 # since the object filename is not given with the -MM flag, the compiler
2002 # is only able to print the basename, and we must add the path ourselves
2003 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2004 DEPFLAGS='-MM'
2005
2006 # find source path
2007 if test -f configure; then
2008     source_path=.
2009 else
2010     source_path=$(cd $(dirname "$0"); pwd)
2011     echo "$source_path" | grep -q '[[:blank:]]' &&
2012         die "Out of tree builds are impossible with whitespace in source path."
2013     test -e "$source_path/config.h" &&
2014         die "Out of tree builds are impossible with config.h in source dir."
2015 fi
2016
2017 for v in "$@"; do
2018     r=${v#*=}
2019     l=${v%"$r"}
2020     r=$(sh_quote "$r")
2021     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2022 done
2023
2024 find_things(){
2025     thing=$1
2026     pattern=$2
2027     file=$source_path/$3
2028     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2029 }
2030
2031 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2032 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2033 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2034 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2035 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2036 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2037 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2038 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2039 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2040 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2041 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2042
2043 ALL_COMPONENTS="
2044     $BSF_LIST
2045     $DECODER_LIST
2046     $DEMUXER_LIST
2047     $ENCODER_LIST
2048     $FILTER_LIST
2049     $HWACCEL_LIST
2050     $INDEV_LIST
2051     $MUXER_LIST
2052     $OUTDEV_LIST
2053     $PARSER_LIST
2054     $PROTOCOL_LIST
2055 "
2056
2057 find_tests(){
2058     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2059 }
2060
2061 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2062 LAVF_TESTS=$(find_tests lavf)
2063 LAVFI_TESTS=$(find_tests lavfi)
2064 SEEK_TESTS=$(find_tests seek seek_)
2065
2066 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2067
2068 for n in $COMPONENT_LIST; do
2069     v=$(toupper ${n%s})_LIST
2070     eval enable \$$v
2071     eval ${n}_if_any="\$$v"
2072 done
2073
2074 enable $ARCH_EXT_LIST $ALL_TESTS
2075
2076 die_unknown(){
2077     echo "Unknown option \"$1\"."
2078     echo "See $0 --help for available options."
2079     exit 1
2080 }
2081
2082 show_list() {
2083     suffix=_$1
2084     shift
2085     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2086     exit 0
2087 }
2088
2089 rand_list(){
2090     IFS=', '
2091     set -- $*
2092     unset IFS
2093     for thing; do
2094         comp=${thing%:*}
2095         prob=${thing#$comp}
2096         prob=${prob#:}
2097         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2098         echo "prob ${prob:-0.5}"
2099         printf '%s\n' $comp
2100     done
2101 }
2102
2103 do_random(){
2104     action=$1
2105     shift
2106     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2107     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2108 }
2109
2110 for opt do
2111     optval="${opt#*=}"
2112     case "$opt" in
2113     --extra-ldflags=*) add_ldflags $optval
2114     ;;
2115     --extra-libs=*) add_extralibs $optval
2116     ;;
2117     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2118     ;;
2119     --enable-debug=*) debuglevel="$optval"
2120     ;;
2121     --disable-everything)
2122     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2123     ;;
2124     --enable-random|--disable-random)
2125     action=${opt%%-random}
2126     do_random ${action#--} $COMPONENT_LIST
2127     ;;
2128     --enable-random=*|--disable-random=*)
2129     action=${opt%%-random=*}
2130     do_random ${action#--} $optval
2131     ;;
2132     --enable-*=*|--disable-*=*)
2133     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2134     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2135     eval list=\$$(toupper $thing)_LIST
2136     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2137     $action $(filter "$name" $list)
2138     ;;
2139     --enable-?*|--disable-?*)
2140     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2141     if is_in $option $COMPONENT_LIST; then
2142         test $action = disable && action=unset
2143         eval $action \$$(toupper ${option%s})_LIST
2144     elif is_in $option $CMDLINE_SELECT; then
2145         $action $option
2146     else
2147         die_unknown $opt
2148     fi
2149     ;;
2150     --list-*)
2151         NAME="${opt#--list-}"
2152         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2153         NAME=${NAME%s}
2154         eval show_list $NAME \$$(toupper $NAME)_LIST
2155     ;;
2156     --help|-h) show_help
2157     ;;
2158     *)
2159     optname="${opt%%=*}"
2160     optname="${optname#--}"
2161     optname=$(echo "$optname" | sed 's/-/_/g')
2162     if is_in $optname $CMDLINE_SET; then
2163         eval $optname='$optval'
2164     elif is_in $optname $CMDLINE_APPEND; then
2165         append $optname "$optval"
2166     else
2167          die_unknown $opt
2168     fi
2169     ;;
2170     esac
2171 done
2172
2173 disabled logging && logfile=/dev/null
2174
2175 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2176 set >> $logfile
2177
2178 test -n "$cross_prefix" && enable cross_compile
2179
2180 if enabled cross_compile; then
2181     test -n "$arch" && test -n "$target_os" ||
2182         die "Must specify target arch and OS when cross-compiling"
2183 fi
2184
2185 set_default arch target_os postproc_version
2186
2187 # Check if we should build alternative libpostproc version instead of current
2188 if   test "$postproc_version" = $ALT_PP_VER; then
2189   LIBPOSTPROC_VERSION=$ALT_PP_VER
2190   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2191   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2192   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2193 elif test "$postproc_version" != current; then
2194   die "Invalid argument to --postproc-version. See --help output."
2195 fi
2196
2197 ar_default="${cross_prefix}${ar_default}"
2198 cc_default="${cross_prefix}${cc_default}"
2199 cxx_default="${cross_prefix}${cxx_default}"
2200 nm_default="${cross_prefix}${nm_default}"
2201 pkg_config_default="${cross_prefix}${pkg_config_default}"
2202 ranlib="${cross_prefix}${ranlib}"
2203 strip_default="${cross_prefix}${strip_default}"
2204
2205 sysinclude_default="${sysroot}/usr/include"
2206
2207 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2208 enabled cross_compile || host_cc_default=$cc
2209 set_default host_cc
2210
2211 if ! $pkg_config --version >/dev/null 2>&1; then
2212     warn "$pkg_config not found, library detection may fail."
2213     pkg_config=false
2214 fi
2215
2216 exesuf() {
2217     case $1 in
2218         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2219     esac
2220 }
2221
2222 EXESUF=$(exesuf $target_os)
2223 HOSTEXESUF=$(exesuf $host_os)
2224
2225 # set temporary file name
2226 : ${TMPDIR:=$TEMPDIR}
2227 : ${TMPDIR:=$TMP}
2228 : ${TMPDIR:=/tmp}
2229
2230 if ! check_cmd mktemp -u XXXXXX; then
2231     # simple replacement for missing mktemp
2232     # NOT SAFE FOR GENERAL USE
2233     mktemp(){
2234         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2235     }
2236 fi
2237
2238 tmpfile(){
2239     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2240         (set -C; exec > $tmp) 2>/dev/null ||
2241         die "Unable to create temporary file in $TMPDIR."
2242     append TMPFILES $tmp
2243     eval $1=$tmp
2244 }
2245
2246 trap 'rm -f -- $TMPFILES' EXIT
2247
2248 tmpfile TMPASM .asm
2249 tmpfile TMPC   .c
2250 tmpfile TMPCPP .cpp
2251 tmpfile TMPE   $EXESUF
2252 tmpfile TMPH   .h
2253 tmpfile TMPO   .o
2254 tmpfile TMPS   .S
2255 tmpfile TMPSH  .sh
2256 tmpfile TMPV   .ver
2257
2258 unset -f mktemp
2259
2260 chmod +x $TMPE
2261
2262 # make sure we can execute files in $TMPDIR
2263 cat > $TMPSH 2>> $logfile <<EOF
2264 #! /bin/sh
2265 EOF
2266 chmod +x $TMPSH >> $logfile 2>&1
2267 if ! $TMPSH >> $logfile 2>&1; then
2268     cat <<EOF
2269 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2270 variable to another directory and make sure that it is not mounted noexec.
2271 EOF
2272     die "Sanity test failed."
2273 fi
2274
2275 pgi_flags(){
2276     for flag; do
2277         case $flag in
2278             -fomit-frame-pointer) echo -Mnoframe ;;
2279             -g)                   echo -gopt ;;
2280             *)                    echo $flag ;;
2281         esac
2282     done
2283 }
2284
2285 suncc_flags(){
2286     for flag; do
2287         case $flag in
2288             -march=*|-mcpu=*)
2289                 case "${flag#*=}" in
2290                     native)                   echo -xtarget=native       ;;
2291                     v9|niagara)               echo -xarch=sparc          ;;
2292                     ultrasparc)               echo -xarch=sparcvis       ;;
2293                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2294                     i586|pentium)             echo -xchip=pentium        ;;
2295                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2296                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2297                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2298                     pentium4*)          echo -xtarget=pentium4           ;;
2299                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2300                     *-sse3)             echo -xarch=sse3                 ;;
2301                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2302                     amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2303                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2304                     k8|opteron|athlon64|athlon-fx)
2305                                               echo -xarch=sse2a          ;;
2306                     athlon*)                  echo -xarch=pentium_proa   ;;
2307                 esac
2308                 ;;
2309             -std=c99)             echo -xc99              ;;
2310             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2311             -fPIC)                echo -KPIC -xcode=pic32 ;;
2312             -W*,*)                echo $flag              ;;
2313             -f*-*|-W*)                                    ;;
2314             *)                    echo $flag              ;;
2315         esac
2316     done
2317 }
2318
2319 tms470_flags(){
2320     for flag; do
2321         case $flag in
2322             -march=*|-mcpu=*)
2323                 case "${flag#*=}" in
2324                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2325                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2326                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2327                     armv6*|arm11*)          echo -mv=6   ;;
2328                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2329                                             echo -mv=5e  ;;
2330                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2331                 esac
2332                 ;;
2333             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2334             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2335             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2336             -msoft-float)   echo --float_support=vfplib       ;;
2337             -O[0-3]|-mf=*)  echo $flag                        ;;
2338             -g)             echo -g -mn                       ;;
2339             -pds=*)         echo $flag                        ;;
2340             -D*|-I*)        echo $flag                        ;;
2341             --gcc|--abi=*)  echo $flag                        ;;
2342             -me)            echo $flag                        ;;
2343         esac
2344     done
2345 }
2346
2347 probe_cc(){
2348     pfx=$1
2349     _cc=$2
2350
2351     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags _ldflags
2352     unset _depflags _DEPCMD _DEPFLAGS
2353     _flags_filter=echo
2354
2355     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2356         _type=llvm_gcc
2357         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2358         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2359         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2360         _cflags_speed='-O3'
2361         _cflags_size='-Os'
2362     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2363         _type=gcc
2364         gcc_version=$($_cc --version | head -n1)
2365         gcc_basever=$($_cc -dumpversion)
2366         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2367         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2368         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2369         if ! $_cc -dumpversion | grep -q '^2\.'; then
2370             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2371         fi
2372         _cflags_speed='-O3'
2373         _cflags_size='-Os'
2374     elif $_cc --version 2>/dev/null | grep -q Intel; then
2375         _type=icc
2376         _ident=$($_cc --version | head -n1)
2377         _depflags='-MMD'
2378         _cflags_speed='-O3'
2379         _cflags_size='-Os'
2380         _cflags_noopt='-O1'
2381     elif $_cc -v 2>&1 | grep -q xlc; then
2382         _type=xlc
2383         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2384         _cflags_speed='-O5'
2385         _cflags_size='-O5 -qcompact'
2386     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2387         _type=ccc
2388         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2389         _DEPFLAGS='-M'
2390         debuglevel=3
2391         _ldflags='-Wl,-z,now' # calls to libots crash without this
2392         _cflags_speed='-fast'
2393         _cflags_size='-O1'
2394     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2395         test -d "$sysroot" || die "No valid sysroot specified."
2396         _type=armcc
2397         _ident=$($_cc --vsn | head -n1)
2398         armcc_conf="$PWD/armcc.conf"
2399         $_cc --arm_linux_configure                 \
2400              --arm_linux_config_file="$armcc_conf" \
2401              --configure_sysroot="$sysroot"        \
2402              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2403              die "Error creating armcc configuration file."
2404         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2405         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2406         as_default="${cross_prefix}gcc"
2407         _depflags='-MMD'
2408         _cflags_speed='-O3'
2409         _cflags_size='-Os'
2410     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2411         _type=tms470
2412         _ident=$($_cc -version | head -n1 | tr -s ' ')
2413         _flags='--gcc --abi=eabi -me'
2414         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2415         _cc_e='-ppl -fe=$@'
2416         _cc_o='-fe=$@'
2417         as_default="${cross_prefix}gcc"
2418         ld_default="${cross_prefix}gcc"
2419         _depflags='-ppa -ppd=$(@:.o=.d)'
2420         _cflags_speed='-O3 -mf=5'
2421         _cflags_size='-O3 -mf=2'
2422         _flags_filter=tms470_flags
2423     elif $_cc -v 2>&1 | grep -q clang; then
2424         _type=clang
2425         _ident=$($_cc --version | head -n1)
2426         _depflags='-MMD'
2427         _cflags_speed='-O3'
2428         _cflags_size='-Os'
2429     elif $_cc -V 2>&1 | grep -q Sun; then
2430         _type=suncc
2431         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2432         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2433         _DEPFLAGS='-xM1'
2434         _ldflags='-std=c99'
2435         _cflags_speed='-O5'
2436         _cflags_size='-O5 -xspace'
2437         _flags_filter=suncc_flags
2438     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2439         _type=pathscale
2440         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2441         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2442         _cflags_speed='-O2'
2443         _cflags_size='-Os'
2444         _flags_filter='filter_out -Wdisabled-optimization'
2445     elif $_cc -v 2>&1 | grep -q Open64; then
2446         _type=open64
2447         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2448         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2449         _cflags_speed='-O2'
2450         _cflags_size='-Os'
2451         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2452     elif $_cc -V 2>&1 | grep -q Portland; then
2453         _type=pgi
2454         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2455         opt_common='-alias=ansi -Mlre -Mpre'
2456         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2457         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2458         _cflags_noopt="-O1"
2459         _flags_filter=pgi_flags
2460     fi
2461
2462     eval ${pfx}_type=\$_type
2463     eval ${pfx}_ident=\$_ident
2464 }
2465
2466 set_ccvars(){
2467     eval ${1}_C=\${_cc_c-\${${1}_C}}
2468     eval ${1}_E=\${_cc_e-\${${1}_E}}
2469     eval ${1}_O=\${_cc_o-\${${1}_O}}
2470
2471     if [ -n "$_depflags" ]; then
2472         eval ${1}_DEPFLAGS=\$_depflags
2473     else
2474         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2475         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2476         eval DEP${1}FLAGS=\$_flags
2477     fi
2478 }
2479
2480 probe_cc cc "$cc"
2481 cflags_filter=$_flags_filter
2482 cflags_speed=$_cflags_speed
2483 cflags_size=$_cflags_size
2484 cflags_noopt=$_cflags_noopt
2485 add_cflags $_flags $_cflags
2486 cc_ldflags=$_ldflags
2487 set_ccvars CC
2488
2489 probe_cc hostcc "$host_cc"
2490 host_cflags_filter=$_flags_filter
2491 host_ldflags_filter=$_flags_filter
2492 add_host_cflags  $_flags $_cflags
2493 add_host_ldflags $_flags $_ldflags
2494 set_ccvars HOSTCC
2495
2496 test -n "$cc_type" && enable $cc_type ||
2497     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2498
2499 : ${as_default:=$cc}
2500 : ${dep_cc_default:=$cc}
2501 : ${ld_default:=$cc}
2502 set_default ar as dep_cc ld
2503
2504 probe_cc as "$as"
2505 asflags_filter=$_flags_filter
2506 add_asflags $_flags $_cflags
2507 set_ccvars AS
2508
2509 probe_cc ld "$ld"
2510 ldflags_filter=$_flags_filter
2511 add_ldflags $_flags $_ldflags
2512 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2513 LD_O=${_cc_o-$LD_O}
2514
2515 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2516     probe_cc depcc "$dep_cc"
2517     CCDEP=${_DEPCMD:-$DEPCMD}
2518     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2519     DEPCCFLAGS=$_flags
2520 fi
2521
2522 add_cflags $extra_cflags
2523 add_cxxflags $extra_cxxflags
2524 add_asflags $extra_cflags
2525
2526 if test -n "$sysroot"; then
2527     case "$cc_type" in
2528         gcc|llvm_gcc|clang)
2529             add_cppflags --sysroot="$sysroot"
2530             add_ldflags --sysroot="$sysroot"
2531         ;;
2532         tms470)
2533             add_cppflags -I"$sysinclude"
2534             add_ldflags  --sysroot="$sysroot"
2535         ;;
2536     esac
2537 fi
2538
2539 if test "$cpu" = host; then
2540     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2541
2542     case "$cc_type" in
2543         gcc|llvm_gcc)
2544             check_native(){
2545                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2546                 sed -n "/cc1.*$1=/{
2547                             s/.*$1=\\([^ ]*\\).*/\\1/
2548                             p
2549                             q
2550                         }" $TMPE
2551             }
2552             cpu=$(check_native -march || check_native -mcpu)
2553         ;;
2554     esac
2555
2556     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2557 fi
2558
2559 # Deal with common $arch aliases
2560 case "$arch" in
2561     arm*|iPad*)
2562         arch="arm"
2563     ;;
2564     mips|mipsel|IP*)
2565         arch="mips"
2566     ;;
2567     mips64*)
2568         arch="mips"
2569         subarch="mips64"
2570     ;;
2571     parisc|hppa)
2572         arch="parisc"
2573     ;;
2574     parisc64|hppa64)
2575         arch="parisc"
2576         subarch="parisc64"
2577     ;;
2578     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2579         arch="ppc"
2580     ;;
2581     s390|s390x)
2582         arch="s390"
2583     ;;
2584     sh4|sh)
2585         arch="sh4"
2586     ;;
2587     sun4u|sparc64)
2588         arch="sparc"
2589         subarch="sparc64"
2590     ;;
2591     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2592         arch="x86"
2593     ;;
2594 esac
2595
2596 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2597 enable $arch
2598
2599 # Add processor-specific flags
2600 if test "$cpu" = generic; then
2601     : do nothing
2602 elif enabled ppc; then
2603
2604     case $(tolower $cpu) in
2605         601|ppc601|powerpc601)
2606             cpuflags="-mcpu=601"
2607             disable altivec
2608         ;;
2609         603*|ppc603*|powerpc603*)
2610             cpuflags="-mcpu=603"
2611             disable altivec
2612         ;;
2613         604*|ppc604*|powerpc604*)
2614             cpuflags="-mcpu=604"
2615             disable altivec
2616         ;;
2617         g3|75*|ppc75*|powerpc75*)
2618             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2619             disable altivec
2620         ;;
2621         g4|745*|ppc745*|powerpc745*)
2622             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2623         ;;
2624         74*|ppc74*|powerpc74*)
2625             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2626         ;;
2627         g5|970|ppc970|powerpc970)
2628             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2629         ;;
2630         power[3-7]*)
2631             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2632         ;;
2633         cell)
2634             cpuflags="-mcpu=cell"
2635             enable ldbrx
2636         ;;
2637         e500mc)
2638             cpuflags="-mcpu=e500mc"
2639             disable altivec
2640         ;;
2641         e500v2)
2642             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2643             disable altivec
2644         ;;
2645         e500)
2646             cpuflags="-mcpu=8540 -mhard-float"
2647             disable altivec
2648         ;;
2649     esac
2650
2651 elif enabled x86; then
2652
2653     case $cpu in
2654         i[345]86|pentium)
2655             cpuflags="-march=$cpu"
2656             disable mmx
2657         ;;
2658         # targets that do NOT support conditional mov (cmov)
2659         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2660             cpuflags="-march=$cpu"
2661             disable cmov
2662         ;;
2663         # targets that do support conditional mov (cmov)
2664         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2665             cpuflags="-march=$cpu"
2666             enable cmov
2667             enable fast_cmov
2668         ;;
2669         # targets that do support conditional mov but on which it's slow
2670         pentium4|pentium4m|prescott|nocona)
2671             cpuflags="-march=$cpu"
2672             enable cmov
2673             disable fast_cmov
2674         ;;
2675     esac
2676
2677 elif enabled sparc; then
2678
2679     case $cpu in
2680         niagara)
2681             cpuflags="-mcpu=$cpu"
2682             disable vis
2683         ;;
2684         sparc64)
2685             cpuflags="-mcpu=v9"
2686         ;;
2687     esac
2688
2689 elif enabled arm; then
2690
2691     case $cpu in
2692         armv*)
2693             cpuflags="-march=$cpu"
2694             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2695         ;;
2696         *)
2697             cpuflags="-mcpu=$cpu"
2698             case $cpu in
2699                 cortex-a*)                               subarch=armv7a  ;;
2700                 cortex-r*)                               subarch=armv7r  ;;
2701                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2702                 arm11*)                                  subarch=armv6   ;;
2703                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2704                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2705             esac
2706         ;;
2707     esac
2708
2709 elif enabled alpha; then
2710
2711     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2712
2713 elif enabled bfin; then
2714
2715     cpuflags="-mcpu=$cpu"
2716
2717 elif enabled mips; then
2718
2719     cpuflags="-march=$cpu"
2720
2721     case $cpu in
2722         24kc)
2723             disable mipsfpu
2724             disable mipsdspr1
2725             disable mipsdspr2
2726         ;;
2727         24kf*)
2728             disable mipsdspr1
2729             disable mipsdspr2
2730         ;;
2731         24kec|34kc|1004kc)
2732             disable mipsfpu
2733             disable mipsdspr2
2734         ;;
2735         24kef*|34kf*|1004kf*)
2736             disable mipsdspr2
2737         ;;
2738         74kc)
2739             disable mipsfpu
2740         ;;
2741     esac
2742
2743 elif enabled avr32; then
2744
2745     case $cpu in
2746         ap7[02]0[0-2])
2747             subarch="avr32_ap"
2748             cpuflags="-mpart=$cpu"
2749         ;;
2750         ap)
2751             subarch="avr32_ap"
2752             cpuflags="-march=$cpu"
2753         ;;
2754         uc3[ab]*)
2755             subarch="avr32_uc"
2756             cpuflags="-mcpu=$cpu"
2757         ;;
2758         uc)
2759             subarch="avr32_uc"
2760             cpuflags="-march=$cpu"
2761         ;;
2762     esac
2763
2764 fi
2765
2766 add_cflags $cpuflags
2767 add_asflags $cpuflags
2768
2769 # compiler sanity check
2770 check_exec <<EOF
2771 int main(void){ return 0; }
2772 EOF
2773 if test "$?" != 0; then
2774     echo "$cc is unable to create an executable file."
2775     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2776         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2777         echo "Only do this if you know what cross compiling means."
2778     fi
2779     die "C compiler test failed."
2780 fi
2781
2782 add_cppflags -D_ISOC99_SOURCE
2783 add_cxxflags -D__STDC_CONSTANT_MACROS
2784 check_cflags -std=c99
2785 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2786 #include <stdlib.h>
2787 EOF
2788 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2789 #include <stdlib.h>
2790 EOF
2791
2792 check_host_cflags -std=c99
2793 check_host_cflags -Wall
2794
2795 case "$arch" in
2796     alpha|ia64|mips|parisc|sparc)
2797         spic=$shared
2798     ;;
2799     x86)
2800         subarch="x86_32"
2801         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2802         if test "$subarch" = "x86_64"; then
2803             spic=$shared
2804         fi
2805     ;;
2806     ppc)
2807         check_cc <<EOF && subarch="ppc64"
2808         int test[(int)sizeof(char*) - 7];
2809 EOF
2810     ;;
2811 esac
2812
2813 enable $subarch
2814 enabled spic && enable pic
2815
2816 # OS specific
2817 case $target_os in
2818     haiku)
2819         prefix_default="/boot/common"
2820         network_extralibs="-lnetwork"
2821         host_libs=
2822         ;;
2823     sunos)
2824         FFSERVERLDFLAGS=""
2825         SHFLAGS='-shared -Wl,-h,$$(@F)'
2826         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2827         network_extralibs="-lsocket -lnsl"
2828         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2829         # When using suncc to build, the Solaris linker will mark
2830         # an executable with each instruction set encountered by
2831         # the Solaris assembler.  As our libraries contain their own
2832         # guards for processor-specific code, instead suppress
2833         # generation of the HWCAPS ELF section on Solaris x86 only.
2834         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2835         nm_opts='-P -g'
2836         ;;
2837     netbsd)
2838         disable symver
2839         oss_indev_extralibs="-lossaudio"
2840         oss_outdev_extralibs="-lossaudio"
2841         ;;
2842     openbsd|bitrig)
2843         # On OpenBSD 4.5. the compiler does not use PIC unless
2844         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2845         # however the generated executable will not do anything
2846         # (simply quits with exit-code 1, no crash, no output).
2847         # Thus explicitly enable PIC here.
2848         enable pic
2849         disable symver
2850         SHFLAGS='-shared'
2851         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2852         oss_indev_extralibs="-lossaudio"
2853         oss_outdev_extralibs="-lossaudio"
2854         ;;
2855     dragonfly)
2856         disable symver
2857         ;;
2858     freebsd)
2859         ;;
2860     bsd/os)
2861         add_extralibs -lpoll -lgnugetopt
2862         strip="strip -d"
2863         ;;
2864     darwin)
2865         gas="gas-preprocessor.pl $cc"
2866         enabled ppc && add_asflags -force_cpusubtype_ALL
2867         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2868         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2869         strip="${strip} -x"
2870         add_ldflags -Wl,-dynamic,-search_paths_first
2871         SLIBSUF=".dylib"
2872         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2873         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2874         FFSERVERLDFLAGS=-Wl,-bind_at_load
2875         objformat="macho"
2876         enabled x86_64 && objformat="macho64"
2877         enabled_any pic shared ||
2878             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2879         ;;
2880     mingw32*)
2881         if test $target_os = "mingw32ce"; then
2882             disable network
2883         else
2884             target_os=mingw32
2885         fi
2886         LIBTARGET=i386
2887         if enabled x86_64; then
2888             LIBTARGET="i386:x86-64"
2889         elif enabled arm; then
2890             LIBTARGET=arm-wince
2891         fi
2892         shlibdir_default="$bindir_default"
2893         SLIBPREF=""
2894         SLIBSUF=".dll"
2895         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2896         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2897         dlltool="${cross_prefix}dlltool"
2898         if check_cmd lib.exe -list; then
2899             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2900             if enabled x86_64; then
2901                 LIBTARGET=x64
2902             fi
2903         elif check_cmd $dlltool --version; then
2904             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2905         fi
2906         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2907         SLIB_INSTALL_LINKS=
2908         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2909         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2910         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2911         objformat="win32"
2912         enable dos_paths
2913         check_cflags -fno-common
2914         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2915                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2916                 die "ERROR: MinGW runtime version must be >= 3.15."
2917         add_cppflags -U__STRICT_ANSI__
2918         ;;
2919     cygwin*)
2920         target_os=cygwin
2921         shlibdir_default="$bindir_default"
2922         SLIBPREF="cyg"
2923         SLIBSUF=".dll"
2924         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2925         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2926         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2927         SLIB_INSTALL_LINKS=
2928         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
2929         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
2930         objformat="win32"
2931         enable dos_paths
2932         check_cflags -fno-common
2933         add_cppflags -U__STRICT_ANSI__
2934         ;;
2935     *-dos|freedos|opendos)
2936         network_extralibs="-lsocket"
2937         objformat="coff"
2938         enable dos_paths
2939         add_cppflags -U__STRICT_ANSI__
2940         ;;
2941     linux)
2942         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2943         enable dv1394
2944         ;;
2945     irix*)
2946         target_os=irix
2947         ranlib="echo ignoring ranlib"
2948         ;;
2949     os/2*)
2950         strip="lxlite -CS"
2951         ln_s="cp -f"
2952         objformat="aout"
2953         add_cppflags -D_GNU_SOURCE
2954         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2955         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2956         FFSERVERLDFLAGS=""
2957         LIBSUF="_s.a"
2958         SLIBPREF=""
2959         SLIBSUF=".dll"
2960         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2961         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2962         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2963           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2964           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2965           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2966           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2967           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2968         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2969           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2970         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2971         enable dos_paths
2972         enable_weak os2threads
2973         ;;
2974     gnu/kfreebsd)
2975         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2976         ;;
2977     gnu)
2978         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2979         ;;
2980     qnx)
2981         add_cppflags -D_QNX_SOURCE
2982         network_extralibs="-lsocket"
2983         ;;
2984     symbian)
2985         SLIBSUF=".dll"
2986         enable dos_paths
2987         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2988         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2989         add_ldflags -Wl,--target1-abs,--no-undefined \
2990                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2991                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2992         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2993                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2994                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2995         ;;
2996     none)
2997         ;;
2998     *)
2999         die "Unknown OS '$target_os'."
3000         ;;
3001 esac
3002
3003 esc(){
3004     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3005 }
3006
3007 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3008
3009 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3010
3011 set_default $PATHS_LIST
3012
3013 # we need to build at least one lib type
3014 if ! enabled_any static shared; then
3015     cat <<EOF
3016 At least one library type must be built.
3017 Specify --enable-static to build the static libraries or --enable-shared to
3018 build the shared libraries as well. To only build the shared libraries specify
3019 --disable-static in addition to --enable-shared.
3020 EOF
3021     exit 1;
3022 fi
3023
3024 die_license_disabled() {
3025     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3026 }
3027
3028 die_license_disabled_gpl() {
3029     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3030 }
3031
3032 die_license_disabled gpl libcdio
3033 die_license_disabled gpl libutvideo
3034 die_license_disabled gpl libx264
3035 die_license_disabled gpl libxavs
3036 die_license_disabled gpl libxvid
3037 die_license_disabled gpl x11grab
3038
3039 die_license_disabled nonfree libaacplus
3040 die_license_disabled nonfree libfaac
3041 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3042 enabled gpl && die_license_disabled_gpl nonfree openssl
3043
3044 die_license_disabled version3 libopencore_amrnb
3045 die_license_disabled version3 libopencore_amrwb
3046 die_license_disabled version3 libvo_aacenc
3047 die_license_disabled version3 libvo_amrwbenc
3048
3049 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3050
3051 disabled optimizations || check_cflags -fomit-frame-pointer
3052
3053 enable_pic() {
3054     enable pic
3055     add_cppflags -DPIC
3056     add_cflags   -fPIC
3057     add_asflags  -fPIC
3058 }
3059
3060 enabled pic && enable_pic
3061
3062 check_cc <<EOF || die "Symbol mangling check failed."
3063 int ff_extern;
3064 EOF
3065 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3066 extern_prefix=${sym%%ff_extern*}
3067
3068 check_cc <<EOF && enable inline_asm
3069 void foo(void) { __asm__ volatile ("" ::); }
3070 EOF
3071
3072 _restrict=
3073 for restrict_keyword in restrict __restrict__ __restrict; do
3074     check_cc <<EOF && _restrict=$restrict_keyword && break
3075 void foo(char * $restrict_keyword p);
3076 EOF
3077 done
3078
3079 check_cc <<EOF && enable attribute_packed
3080 struct { int x; } __attribute__((packed)) x;
3081 EOF
3082
3083 check_cc <<EOF && enable attribute_may_alias
3084 union { int x; } __attribute__((may_alias)) x;
3085 EOF
3086
3087 check_cc <<EOF || die "endian test failed"
3088 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3089 EOF
3090 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3091
3092 if enabled alpha; then
3093
3094     check_cflags -mieee
3095
3096 elif enabled arm; then
3097
3098     enabled thumb && check_cflags -mthumb || check_cflags -marm
3099     nogas=die
3100
3101     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3102         enable vfp_args
3103     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3104         case "${cross_prefix:-$cc}" in
3105             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3106             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3107 __asm__ (".eabi_attribute 28, 1");
3108 int main(void) { return 0; }
3109 EOF
3110         esac
3111         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3112     fi
3113
3114     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
3115     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
3116     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
3117     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
3118     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
3119     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
3120
3121     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3122
3123     enabled_all armv6t2 shared !pic && enable_pic
3124
3125 elif enabled mips; then
3126
3127     check_asm loongson '"dmult.g $1, $2, $3"'
3128     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
3129     enabled mips32r2  && add_cflags "-mips32r2" &&
3130      check_asm mips32r2  '"rotr $t0, $t1, 1"'
3131     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3132      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3133     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3134      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3135     enabled mipsfpu   && add_cflags "-mhard-float" &&
3136      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3137
3138
3139 elif enabled ppc; then
3140
3141     enable local_aligned_8 local_aligned_16
3142
3143     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3144     check_asm ibm_asm   '"add 0, 0, 0"'
3145     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3146     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3147
3148     # AltiVec flags: The FSF version of GCC differs from the Apple version
3149     if enabled altivec; then
3150         nogas=warn
3151         check_cflags -maltivec -mabi=altivec &&
3152         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3153         check_cflags -faltivec
3154
3155         # check if our compiler supports Motorola AltiVec C API
3156         check_cc <<EOF || disable altivec
3157 $inc_altivec_h
3158 int main(void) {
3159     vector signed int v1, v2, v3;
3160     v1 = vec_add(v2,v3);
3161     return 0;
3162 }
3163 EOF
3164
3165         # check if our compiler supports braces for vector declarations
3166         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3167 $inc_altivec_h
3168 int main (void) { (vector int) {1}; return 0; }
3169 EOF
3170     fi
3171
3172 elif enabled sparc; then
3173
3174     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3175         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3176
3177 elif enabled x86; then
3178
3179     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3180     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3181     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3182     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3183
3184     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3185
3186     enable local_aligned_8 local_aligned_16
3187
3188     # check whether EBP is available on x86
3189     # As 'i' is stored on the stack, this program will crash
3190     # if the base pointer is used to access it because the
3191     # base pointer is cleared in the inline assembly code.
3192     check_exec_crash <<EOF && enable ebp_available
3193     volatile int i=0;
3194     __asm__ volatile (
3195         "xorl %%ebp, %%ebp"
3196     ::: "%ebp");
3197     return i;
3198 EOF
3199
3200     # check whether EBX is available on x86
3201     check_asm ebx_available '""::"b"(0)' &&
3202         check_asm ebx_available '"":::"%ebx"'
3203
3204     # check whether xmm clobbers are supported
3205     check_asm xmm_clobbers '"":::"%xmm0"'
3206
3207     # check whether binutils is new enough to compile SSSE3/MMXEXT
3208     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3209     enabled mmxext && check_asm mmxext '"pmaxub %mm0, %mm1"'
3210
3211     if ! disabled_any asm mmx yasm; then
3212         if check_cmd $yasmexe --version; then
3213             enabled x86_64 && yasm_extra="-m amd64"
3214             yasm_debug="-g dwarf2"
3215         elif check_cmd nasm -v; then
3216             yasmexe=nasm
3217             yasm_debug="-g -F dwarf"
3218             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3219         fi
3220
3221         YASMFLAGS="-f $objformat $yasm_extra"
3222         enabled pic               && append YASMFLAGS "-DPIC"
3223         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3224         case "$objformat" in
3225             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3226         esac
3227
3228         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3229             die "yasm not found, use --disable-yasm for a crippled build"
3230         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3231         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4
3232     fi
3233
3234     case "$cpu" in
3235         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3236             disable fast_clz
3237         ;;
3238     esac
3239
3240 fi
3241
3242 if enabled asm; then
3243     as=${gas:=$as}
3244     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3245         $nogas "GNU assembler not found, install gas-preprocessor"
3246 fi
3247
3248 check_ldflags -Wl,--as-needed
3249
3250 if check_func dlopen; then
3251     ldl=
3252 elif check_func dlopen -ldl; then
3253     ldl=-ldl
3254 fi
3255
3256 if enabled network; then
3257     check_type "sys/types.h sys/socket.h" socklen_t
3258     check_type netdb.h "struct addrinfo"
3259     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3260     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3261     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3262     check_type netinet/in.h "struct sockaddr_in6"
3263     check_type poll.h "struct pollfd"
3264     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3265     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3266     check_header netinet/sctp.h
3267     check_func getaddrinfo $network_extralibs
3268     # Prefer arpa/inet.h over winsock2
3269     if check_header arpa/inet.h ; then
3270         check_func closesocket
3271     elif check_header winsock2.h ; then
3272         check_func_headers winsock2.h closesocket -lws2 &&
3273             network_extralibs="-lws2" ||
3274         { check_func_headers winsock2.h closesocket -lws2_32 &&
3275             network_extralibs="-lws2_32"; }
3276         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3277         check_type ws2tcpip.h socklen_t
3278         check_type ws2tcpip.h "struct addrinfo"
3279         check_type ws2tcpip.h "struct group_source_req"
3280         check_type ws2tcpip.h "struct ip_mreq_source"
3281         check_type ws2tcpip.h "struct ipv6_mreq"
3282         check_type winsock2.h "struct pollfd"
3283         check_type ws2tcpip.h "struct sockaddr_in6"
3284         check_type ws2tcpip.h "struct sockaddr_storage"
3285         check_struct winsock2.h "struct sockaddr" sa_len
3286     else
3287         disable network
3288     fi
3289 fi
3290
3291 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3292 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3293
3294 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3295 check_func  fcntl
3296 check_func  fork
3297 check_func  gethrtime
3298 check_func  getopt
3299 check_func  getrusage
3300 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3301 check_func  gettimeofday
3302 check_func  inet_aton $network_extralibs
3303 check_func  isatty
3304 check_func  localtime_r
3305 check_func  ${malloc_prefix}memalign            && enable memalign
3306 check_func  mkstemp
3307 check_func  mmap
3308 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3309 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3310 check_func  setrlimit
3311 check_func  strerror_r
3312 check_func  strptime
3313 check_func  sched_getaffinity
3314 check_func  sysconf
3315 check_func  sysctl
3316 check_func  usleep
3317 check_func_headers conio.h kbhit
3318 check_func_headers windows.h PeekNamedPipe
3319 check_func_headers io.h setmode
3320 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3321 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3322 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3323 check_func_headers windows.h GetProcessAffinityMask
3324 check_func_headers windows.h GetProcessTimes
3325 check_func_headers windows.h GetSystemTimeAsFileTime
3326 check_func_headers windows.h MapViewOfFile
3327 check_func_headers windows.h Sleep
3328 check_func_headers windows.h VirtualAlloc
3329 check_func_headers glob.h glob
3330
3331 check_header dlfcn.h
3332 check_header dxva.h
3333 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3334 check_header libcrystalhd/libcrystalhd_if.h
3335 check_header malloc.h
3336 check_header poll.h
3337 check_header sys/mman.h
3338 check_header sys/param.h
3339 check_header sys/resource.h
3340 check_header sys/select.h
3341 check_header sys/time.h
3342 check_header termios.h
3343 check_header unistd.h
3344 check_header vdpau/vdpau.h
3345 check_header vdpau/vdpau_x11.h
3346 check_header windows.h
3347 check_header X11/extensions/XvMClib.h
3348 check_header asm/types.h
3349
3350 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3351 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3352
3353 # check for VDA header
3354 if ! disabled vda; then
3355     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3356         enable vda
3357         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3358     fi
3359 fi
3360
3361 if ! disabled w32threads && ! enabled pthreads; then
3362     check_func _beginthreadex && enable w32threads
3363 fi
3364
3365 # check for some common methods of building with pthread support
3366 # do this before the optional library checks as some of them require pthreads
3367 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3368     enable pthreads
3369     if check_func pthread_create; then
3370         :
3371     elif check_func pthread_create -pthread; then
3372         add_cflags -pthread
3373         add_extralibs -pthread
3374     elif check_func pthread_create -pthreads; then
3375         add_cflags -pthreads
3376         add_extralibs -pthreads
3377     elif check_func pthread_create -lpthreadGC2; then
3378         add_extralibs -lpthreadGC2
3379     elif ! check_lib pthread.h pthread_create -lpthread; then
3380         disable pthreads
3381     fi
3382 fi
3383
3384 for thread in $THREADS_LIST; do
3385     if enabled $thread; then
3386         test -n "$thread_type" &&
3387             die "ERROR: Only one thread type must be selected." ||
3388             thread_type="$thread"
3389     fi
3390 done
3391
3392 if enabled pthreads; then
3393   check_func pthread_cancel
3394 fi
3395
3396 check_lib math.h sin -lm && LIBM="-lm"
3397 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3398 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3399
3400 check_mathfunc cbrtf
3401 check_mathfunc exp2
3402 check_mathfunc exp2f
3403 check_mathfunc isinf
3404 check_mathfunc isnan
3405 check_mathfunc llrint
3406 check_mathfunc llrintf
3407 check_mathfunc log2
3408 check_mathfunc log2f
3409 check_mathfunc lrint
3410 check_mathfunc lrintf
3411 check_mathfunc rint
3412 check_mathfunc round
3413 check_mathfunc roundf
3414 check_mathfunc trunc
3415 check_mathfunc truncf
3416
3417 # these are off by default, so fail if requested and not available
3418 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3419 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3420 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3421 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3422 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3423 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3424 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3425 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3426 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3427                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3428                         die "ERROR: libcelt version must be >= 0.11.0."; }
3429 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3430 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3431 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3432 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"
3433 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3434 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3435 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3436 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3437 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3438 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3439 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3440 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3441 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3442 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3443 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3444 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3445 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3446 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3447 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3448 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3449 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3450     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3451     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3452 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3453 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3454                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3455                         die "ERROR: libtwolame version must be >= 0.3.10"; }
3456 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3457 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3458 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3459 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3460 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3461 enabled libvpx     && {
3462     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3463                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3464     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3465                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3466 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3467                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3468                         die "ERROR: libx264 version must be >= 0.118."; }
3469 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3470 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3471 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3472                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3473                         die "ERROR: openal not found"; } &&
3474                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3475                         die "ERROR: openal version must be 1.1 or compatible"; }
3476 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3477                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3478                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3479                         die "ERROR: openssl not found"; }
3480
3481 if enabled gnutls; then
3482     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3483     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3484 fi
3485
3486 # libdc1394 check
3487 if enabled libdc1394; then
3488     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3489         enable libdc1394_2; } ||
3490     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3491         enable libdc1394_1; } ||
3492     die "ERROR: No version of libdc1394 found "
3493 fi
3494
3495 SDL_CONFIG="${cross_prefix}sdl-config"
3496 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3497     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3498     enable sdl &&
3499     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3500 else
3501   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3502     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3503     sdl_libs=$("${SDL_CONFIG}" --libs)
3504     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3505     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3506     enable sdl &&
3507     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3508   fi
3509 fi
3510 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3511
3512 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3513 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3514 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3515
3516 check_header linux/fb.h
3517 check_header linux/videodev.h
3518 check_header linux/videodev2.h
3519 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3520
3521 check_header sys/videoio.h
3522
3523 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3524 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3525 # w32api 3.12 had it defined wrong
3526 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3527
3528 check_type "dshow.h" IBaseFilter
3529
3530 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3531 { check_header dev/bktr/ioctl_meteor.h &&
3532   check_header dev/bktr/ioctl_bt848.h; } ||
3533 { check_header machine/ioctl_meteor.h &&
3534   check_header machine/ioctl_bt848.h; } ||
3535 { check_header dev/video/meteor/ioctl_meteor.h &&
3536   check_header dev/video/bktr/ioctl_bt848.h; } ||
3537 check_header dev/ic/bt8xx.h
3538
3539 check_header sndio.h
3540 if check_struct sys/soundcard.h audio_buf_info bytes; then
3541     enable_safe sys/soundcard.h
3542 else
3543     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3544     #include <sys/soundcard.h>
3545     audio_buf_info abc;
3546 EOF
3547 fi
3548 check_header soundcard.h
3549
3550 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3551
3552 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3553     check_func jack_port_get_latency_range -ljack
3554
3555 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3556
3557 enabled libcdio &&
3558     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3559
3560 enabled x11grab                                           &&
3561 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3562 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3563 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3564
3565 if ! disabled vaapi; then
3566     check_lib va/va.h vaInitialize -lva && {
3567         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3568         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3569     } || disable vaapi
3570 fi
3571
3572 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3573 check_cpp_condition \
3574     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3575     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3576       disable vdpau; }
3577 fi
3578
3579 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3580 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3581 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"
3582
3583 # add some useful compiler flags if supported
3584 check_cflags -Wdeclaration-after-statement
3585 check_cflags -Wall
3586 check_cflags -Wno-parentheses
3587 check_cflags -Wno-switch
3588 check_cflags -Wno-format-zero-length
3589 check_cflags -Wdisabled-optimization
3590 check_cflags -Wpointer-arith
3591 check_cflags -Wredundant-decls
3592 check_cflags -Wno-pointer-sign
3593 check_cflags -Wwrite-strings
3594 check_cflags -Wtype-limits
3595 check_cflags -Wundef
3596 check_cflags -Wmissing-prototypes
3597 check_cflags -Wno-pointer-to-int-cast
3598 check_cflags -Wstrict-prototypes
3599 enabled extra_warnings && check_cflags -Winline
3600
3601 # add some linker flags
3602 check_ldflags -Wl,--warn-common
3603 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3604 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3605
3606 enabled xmm_clobber_test &&
3607     check_ldflags -Wl,--wrap,avcodec_open2              \
3608                   -Wl,--wrap,avcodec_decode_audio4      \
3609                   -Wl,--wrap,avcodec_decode_video2      \
3610                   -Wl,--wrap,avcodec_decode_subtitle2   \
3611                   -Wl,--wrap,avcodec_encode_audio2      \
3612                   -Wl,--wrap,avcodec_encode_video       \
3613                   -Wl,--wrap,avcodec_encode_subtitle    \
3614                   -Wl,--wrap,sws_scale ||
3615     disable xmm_clobber_test
3616
3617 echo "X{};" > $TMPV
3618 if test_ldflags -Wl,--version-script,$TMPV; then
3619     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3620     check_cc <<EOF && enable symver_asm_label
3621 void ff_foo(void) __asm__ ("av_foo@VERSION");
3622 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3623 EOF
3624     check_cc <<EOF && enable symver_gnu_asm
3625 __asm__(".symver ff_foo,av_foo@VERSION");
3626 void ff_foo(void) {}
3627 EOF
3628 fi
3629
3630 if [ -n "$optflags" ]; then
3631     add_cflags $optflags
3632 elif enabled small; then
3633     add_cflags $cflags_size
3634 elif enabled optimizations; then
3635     add_cflags $cflags_speed
3636 else
3637     add_cflags $cflags_noopt
3638 fi
3639 check_cflags -fno-math-errno
3640 check_cflags -fno-signed-zeros
3641 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3642 int x;
3643 EOF
3644
3645
3646 if enabled icc; then
3647     # Just warnings, no remarks
3648     check_cflags -w1
3649     # -wd: Disable following warnings
3650     # 144, 167, 556: -Wno-pointer-sign
3651     # 1292: attribute "foo" ignored
3652     # 1419: external declaration in primary source file
3653     # 10006: ignoring unknown option -fno-signed-zeros
3654     # 10148: ignoring unknown option -Wno-parentheses
3655     # 10156: ignoring option '-W'; no argument required
3656     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3657     # 11030: Warning unknown option --as-needed
3658     # 10156: ignoring option '-export'; no argument required
3659     check_ldflags -wd10156,11030
3660     # Allow to compile with optimizations
3661     check_ldflags -march=$cpu
3662     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3663     enable ebp_available
3664     if enabled x86_32; then
3665         icc_version=$($cc -dumpversion)
3666         test ${icc_version%%.*} -ge 11 &&
3667             check_cflags -falign-stack=maintain-16-byte ||
3668             disable aligned_stack
3669     fi
3670 elif enabled ccc; then
3671     # disable some annoying warnings
3672     add_cflags -msg_disable cvtu32to64
3673     add_cflags -msg_disable embedcomment
3674     add_cflags -msg_disable needconstext
3675     add_cflags -msg_disable nomainieee
3676     add_cflags -msg_disable ptrmismatch1
3677     add_cflags -msg_disable unreachcode
3678 elif enabled gcc; then
3679     check_cflags -fno-tree-vectorize
3680     check_cflags -Werror=implicit-function-declaration
3681     check_cflags -Werror=missing-prototypes
3682 elif enabled llvm_gcc; then
3683     check_cflags -mllvm -stack-alignment=16
3684 elif enabled clang; then
3685     check_cflags -mllvm -stack-alignment=16
3686     check_cflags -Qunused-arguments
3687 elif enabled armcc; then
3688     # 2523: use of inline assembler is deprecated
3689     add_cflags -W${armcc_opt},--diag_suppress=2523
3690     add_cflags -W${armcc_opt},--diag_suppress=1207
3691     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3692     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3693     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3694     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3695 elif enabled tms470; then
3696     add_cflags -pds=824 -pds=837
3697 elif enabled pathscale; then
3698     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3699 fi
3700
3701 enabled_any $THREADS_LIST      && enable threads
3702
3703 check_deps $CONFIG_LIST       \
3704            $CONFIG_EXTRA      \
3705            $HAVE_LIST         \
3706            $ALL_COMPONENTS    \
3707            $ALL_TESTS         \
3708
3709 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3710
3711 if test $target_os = "haiku"; then
3712     disable memalign
3713     disable posix_memalign
3714 fi
3715
3716 ! enabled_any memalign posix_memalign aligned_malloc &&
3717     enabled_any $need_memalign && enable memalign_hack
3718
3719 # add_dep lib dep
3720 # -> enable ${lib}_deps_${dep}
3721 # -> add $dep to ${lib}_deps only once
3722 add_dep() {
3723     lib=$1
3724     dep=$2
3725     enabled "${lib}_deps_${dep}" && return 0
3726     enable  "${lib}_deps_${dep}"
3727     prepend "${lib}_deps" $dep
3728 }
3729
3730 # merge deps lib components
3731 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3732 merge_deps() {
3733     lib=$1
3734     shift
3735     for comp in $*; do
3736         enabled $comp || continue
3737         eval "dep=\"\$${comp}_deps\""
3738         for d in $dep; do
3739             add_dep $lib $d
3740         done
3741     done
3742 }
3743
3744 merge_deps libavfilter $FILTER_LIST
3745
3746 echo "install prefix            $prefix"
3747 echo "source path               $source_path"
3748 echo "C compiler                $cc"
3749 echo "ARCH                      $arch ($cpu)"
3750 if test "$build_suffix" != ""; then
3751     echo "build suffix              $build_suffix"
3752 fi
3753 if test "$progs_suffix" != ""; then
3754     echo "progs suffix              $progs_suffix"
3755 fi
3756 if test "$extra_version" != ""; then
3757     echo "version string suffix     $extra_version"
3758 fi
3759 echo "big-endian                ${bigendian-no}"
3760 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3761 if enabled x86; then
3762     echo "${yasmexe}                      ${yasm-no}"
3763     echo "MMX enabled               ${mmx-no}"
3764     echo "MMXEXT enabled            ${mmxext-no}"
3765     echo "3DNow! enabled            ${amd3dnow-no}"
3766     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3767     echo "SSE enabled               ${sse-no}"
3768     echo "SSSE3 enabled             ${ssse3-no}"
3769     echo "AVX enabled               ${avx-no}"
3770     echo "FMA4 enabled              ${fma4-no}"
3771     echo "CMOV enabled              ${cmov-no}"
3772     echo "CMOV is fast              ${fast_cmov-no}"
3773     echo "EBX available             ${ebx_available-no}"
3774     echo "EBP available             ${ebp_available-no}"
3775 fi
3776 if enabled arm; then
3777     echo "ARMv5TE enabled           ${armv5te-no}"
3778     echo "ARMv6 enabled             ${armv6-no}"
3779     echo "ARMv6T2 enabled           ${armv6t2-no}"
3780     echo "ARM VFP enabled           ${armvfp-no}"
3781     echo "NEON enabled              ${neon-no}"
3782 fi
3783 if enabled mips; then
3784     echo "MMI enabled               ${mmi-no}"
3785     echo "MIPS FPU enabled          ${mipsfpu-no}"
3786     echo "MIPS32R2 enabled          ${mips32r2-no}"
3787     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3788     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3789 fi
3790 if enabled ppc; then
3791     echo "AltiVec enabled           ${altivec-no}"
3792     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3793     echo "dcbzl available           ${dcbzl-no}"
3794 fi
3795 if enabled sparc; then
3796     echo "VIS enabled               ${vis-no}"
3797 fi
3798 echo "debug symbols             ${debug-no}"
3799 echo "strip symbols             ${stripping-no}"
3800 echo "optimize for size         ${small-no}"
3801 echo "optimizations             ${optimizations-no}"
3802 echo "static                    ${static-no}"
3803 echo "shared                    ${shared-no}"
3804 echo "postprocessing support    ${postproc-no}"
3805 echo "new filter support        ${avfilter-no}"
3806 echo "network support           ${network-no}"
3807 echo "threading support         ${thread_type-no}"
3808 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3809 echo "SDL support               ${sdl-no}"
3810 echo "libdxva2 enabled          ${dxva2-no}"
3811 echo "libva enabled             ${vaapi-no}"
3812 echo "libvdpau enabled          ${vdpau-no}"
3813 echo "AVISynth enabled          ${avisynth-no}"
3814 echo "frei0r enabled            ${frei0r-no}"
3815 echo "gnutls enabled            ${gnutls-no}"
3816 echo "libaacplus enabled        ${libaacplus-no}"
3817 echo "libass enabled            ${libass-no}"
3818 echo "libcaca enabled           ${libcaca-no}"
3819 echo "libcdio support           ${libcdio-no}"
3820 echo "libcelt enabled           ${libcelt-no}"
3821 echo "libdc1394 support         ${libdc1394-no}"
3822 echo "libfaac enabled           ${libfaac-no}"
3823 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3824 echo "libgsm enabled            ${libgsm-no}"
3825 echo "libiec61883 support       ${libiec61883-no}"
3826 echo "libilbc enabled           ${libilbc-no}"
3827 echo "libmodplug enabled        ${libmodplug-no}"
3828 echo "libmp3lame enabled        ${libmp3lame-no}"
3829 echo "libnut enabled            ${libnut-no}"
3830 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3831 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3832 echo "libopencv support         ${libopencv-no}"
3833 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3834 echo "libopus enabled           ${libopus-no}"
3835 echo "libpulse enabled          ${libpulse-no}"
3836 echo "librtmp enabled           ${librtmp-no}"
3837 echo "libschroedinger enabled   ${libschroedinger-no}"
3838 echo "libspeex enabled          ${libspeex-no}"
3839 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3840 echo "libtheora enabled         ${libtheora-no}"
3841 echo "libtwolame enabled        ${libtwolame-no}"
3842 echo "libutvideo enabled        ${libutvideo-no}"
3843 echo "libv4l2 enabled           ${libv4l2-no}"
3844 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3845 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3846 echo "libvorbis enabled         ${libvorbis-no}"
3847 echo "libvpx enabled            ${libvpx-no}"
3848 echo "libx264 enabled           ${libx264-no}"
3849 echo "libxavs enabled           ${libxavs-no}"
3850 echo "libxvid enabled           ${libxvid-no}"
3851 echo "openal enabled            ${openal-no}"
3852 echo "openssl enabled           ${openssl-no}"
3853 echo "zlib enabled              ${zlib-no}"
3854 echo "bzlib enabled             ${bzlib-no}"
3855 echo "texi2html enabled         ${texi2html-no}"
3856 echo "pod2man enabled           ${pod2man-no}"
3857 echo "makeinfo enabled          ${makeinfo-no}"
3858 test -n "$random_seed" &&
3859     echo "random seed               ${random_seed}"
3860 echo
3861
3862 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3863     echo "Enabled ${type}s:"
3864     eval list=\$$(toupper $type)_LIST
3865     print_enabled '_*' $list | sort | pr -r -3 -t
3866     echo
3867 done
3868
3869 license="LGPL version 2.1 or later"
3870 if enabled nonfree; then
3871     license="nonfree and unredistributable"
3872 elif enabled gplv3; then
3873     license="GPL version 3 or later"
3874 elif enabled lgplv3; then
3875     license="LGPL version 3 or later"
3876 elif enabled gpl; then
3877     license="GPL version 2 or later"
3878 fi
3879
3880 echo "License: $license"
3881
3882 echo "Creating config.mak and config.h..."
3883
3884 test -e Makefile || $ln_s "$source_path/Makefile" .
3885
3886 enabled stripping || strip="echo skipping strip"
3887
3888 config_files="$TMPH config.mak"
3889
3890 cat > config.mak <<EOF
3891 # Automatically generated by configure - do not modify!
3892 ifndef FFMPEG_CONFIG_MAK
3893 FFMPEG_CONFIG_MAK=1
3894 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3895 prefix=$prefix
3896 LIBDIR=\$(DESTDIR)$libdir
3897 SHLIBDIR=\$(DESTDIR)$shlibdir
3898 INCDIR=\$(DESTDIR)$incdir
3899 BINDIR=\$(DESTDIR)$bindir
3900 DATADIR=\$(DESTDIR)$datadir
3901 MANDIR=\$(DESTDIR)$mandir
3902 SRC_PATH=$source_path
3903 ifndef MAIN_MAKEFILE
3904 SRC_PATH:=\$(SRC_PATH:.%=..%)
3905 endif
3906 CC_IDENT=$cc_ident
3907 ARCH=$arch
3908 CC=$cc
3909 CXX=$cxx
3910 AS=$as
3911 LD=$ld
3912 DEPCC=$dep_cc
3913 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
3914 DEPAS=$as
3915 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
3916 YASM=$yasmexe
3917 DEPYASM=$yasmexe
3918 AR=$ar
3919 RANLIB=$ranlib
3920 CP=cp -p
3921 LN_S=$ln_s
3922 STRIP=$strip
3923 CPPFLAGS=$CPPFLAGS
3924 CFLAGS=$CFLAGS
3925 CXXFLAGS=$CXXFLAGS
3926 ASFLAGS=$ASFLAGS
3927 AS_C=$AS_C
3928 AS_O=$AS_O
3929 CC_C=$CC_C
3930 CC_O=$CC_O
3931 CXX_C=$CXX_C
3932 CXX_O=$CXX_O
3933 LD_O=$LD_O
3934 DLLTOOL=$dlltool
3935 LDFLAGS=$LDFLAGS
3936 LDFLAGS-ffserver=$FFSERVERLDFLAGS
3937 SHFLAGS=$SHFLAGS
3938 YASMFLAGS=$YASMFLAGS
3939 BUILDSUF=$build_suffix
3940 PROGSSUF=$progs_suffix
3941 FULLNAME=$FULLNAME
3942 LIBPREF=$LIBPREF
3943 LIBSUF=$LIBSUF
3944 LIBNAME=$LIBNAME
3945 SLIBPREF=$SLIBPREF
3946 SLIBSUF=$SLIBSUF
3947 EXESUF=$EXESUF
3948 EXTRA_VERSION=$extra_version
3949 CCDEP=$CCDEP
3950 CXXDEP=$CXXDEP
3951 CCDEP_FLAGS=$CCDEP_FLAGS
3952 ASDEP=$ASDEP
3953 ASDEP_FLAGS=$ASDEP_FLAGS
3954 CC_DEPFLAGS=$CC_DEPFLAGS
3955 AS_DEPFLAGS=$AS_DEPFLAGS
3956 HOSTCC=$host_cc
3957 HOSTCFLAGS=$host_cflags
3958 HOSTEXESUF=$HOSTEXESUF
3959 HOSTLDFLAGS=$host_ldflags
3960 HOSTLIBS=$host_libs
3961 DEPHOSTCC=$host_cc
3962 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
3963 HOSTCCDEP=$HOSTCCDEP
3964 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
3965 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
3966 HOSTCC_C=$HOSTCC_C
3967 HOSTCC_O=$HOSTCC_O
3968 TARGET_EXEC=$target_exec
3969 TARGET_PATH=$target_path
3970 LIBS-ffplay=$sdl_libs
3971 CFLAGS-ffplay=$sdl_cflags
3972 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3973 EXTRALIBS=$extralibs
3974 INSTALL=$install
3975 LIBTARGET=${LIBTARGET}
3976 SLIBNAME=${SLIBNAME}
3977 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3978 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3979 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3980 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3981 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3982 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3983 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3984 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3985 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3986 NOREDZONE_FLAGS=$noredzone_flags
3987 EOF
3988
3989 get_version(){
3990     lcname=$1
3991     name=$(toupper $lcname)
3992     file=$source_path/$lcname/version.h
3993     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3994     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3995     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3996     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3997 }
3998
3999 get_version_old(){
4000     name=$1
4001     file=$source_path/$2
4002 # This condition will be removed when we stop supporting old libpostproc versions
4003 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4004     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4005     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4006 fi
4007     lcname=$(tolower $name)
4008     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4009     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4010 }
4011
4012 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4013 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4014