Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Component options:
103   --disable-doc            do not build documentation
104   --disable-ffmpeg         disable ffmpeg build
105   --disable-ffplay         disable ffplay build
106   --disable-ffprobe        disable ffprobe build
107   --disable-ffserver       disable ffserver build
108   --disable-avdevice       disable libavdevice build
109   --disable-avcodec        disable libavcodec build
110   --disable-avformat       disable libavformat build
111   --disable-swresample     disable libswresample build
112   --disable-swscale        disable libswscale build
113   --disable-postproc       disable libpostproc build
114   --disable-avfilter       disable libavfilter build
115   --enable-avresample      enable libavresample build [no]
116   --disable-pthreads       disable pthreads [auto]
117   --disable-w32threads     disable Win32 threads [auto]
118   --disable-os2threads     disable OS/2 threads [auto]
119   --enable-x11grab         enable X11 grabbing [no]
120   --disable-network        disable network support [no]
121   --disable-dct            disable DCT code
122   --disable-mdct           disable MDCT code
123   --disable-rdft           disable RDFT code
124   --disable-fft            disable FFT code
125   --enable-dxva2           enable DXVA2 code
126   --enable-vaapi           enable VAAPI code [autodetect]
127   --enable-vda             enable VDA code   [autodetect]
128   --enable-vdpau           enable VDPAU code [autodetect]
129
130 Individual component options:
131   --disable-everything     disable all components listed below
132   --disable-encoder=NAME   disable encoder NAME
133   --enable-encoder=NAME    enable encoder NAME
134   --disable-encoders       disable all encoders
135   --disable-decoder=NAME   disable decoder NAME
136   --enable-decoder=NAME    enable decoder NAME
137   --disable-decoders       disable all decoders
138   --disable-hwaccel=NAME   disable hwaccel NAME
139   --enable-hwaccel=NAME    enable hwaccel NAME
140   --disable-hwaccels       disable all hwaccels
141   --disable-muxer=NAME     disable muxer NAME
142   --enable-muxer=NAME      enable muxer NAME
143   --disable-muxers         disable all muxers
144   --disable-demuxer=NAME   disable demuxer NAME
145   --enable-demuxer=NAME    enable demuxer NAME
146   --disable-demuxers       disable all demuxers
147   --enable-parser=NAME     enable parser NAME
148   --disable-parser=NAME    disable parser NAME
149   --disable-parsers        disable all parsers
150   --enable-bsf=NAME        enable bitstream filter NAME
151   --disable-bsf=NAME       disable bitstream filter NAME
152   --disable-bsfs           disable all bitstream filters
153   --enable-protocol=NAME   enable protocol NAME
154   --disable-protocol=NAME  disable protocol NAME
155   --disable-protocols      disable all protocols
156   --enable-indev=NAME      enable input device NAME
157   --disable-indev=NAME     disable input device NAME
158   --disable-indevs         disable input devices
159   --enable-outdev=NAME     enable output device NAME
160   --disable-outdev=NAME    disable output device NAME
161   --disable-outdevs        disable output devices
162   --disable-devices        disable all devices
163   --enable-filter=NAME     enable filter NAME
164   --disable-filter=NAME    disable filter NAME
165   --disable-filters        disable all filters
166
167 External library support:
168   --enable-avisynth        enable reading of AVISynth script files [no]
169   --enable-bzlib           enable bzlib [autodetect]
170   --enable-fontconfig      enable fontconfig
171   --enable-frei0r          enable frei0r video filtering
172   --enable-gnutls          enable gnutls [no]
173   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
174   --enable-libass          enable libass subtitles rendering [no]
175   --enable-libbluray       enable BluRay reading using libbluray [no]
176   --enable-libcaca         enable textual display using libcaca
177   --enable-libcelt         enable CELT decoding via libcelt [no]
178   --enable-libcdio         enable audio CD grabbing with libcdio
179   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
180                            and libraw1394 [no]
181   --enable-libfaac         enable AAC encoding via libfaac [no]
182   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
183   --enable-libfreetype     enable libfreetype [no]
184   --enable-libgsm          enable GSM de/encoding via libgsm [no]
185   --enable-libiec61883     enable iec61883 via libiec61883 [no]
186   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
187   --enable-libmodplug      enable ModPlug via libmodplug [no]
188   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
189   --enable-libnut          enable NUT (de)muxing via libnut,
190                            native (de)muxer exists [no]
191   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
192   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
193   --enable-libopencv       enable video filtering via libopencv [no]
194   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
195   --enable-libopus         enable Opus decoding via libopus [no]
196   --enable-libpulse        enable Pulseaudio input via libpulse [no]
197   --enable-librtmp         enable RTMP[E] support via librtmp [no]
198   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
199   --enable-libspeex        enable Speex de/encoding via libspeex [no]
200   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
201   --enable-libtheora       enable Theora encoding via libtheora [no]
202   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
203   --enable-libv4l2         enable libv4l2/v4l-utils [no]
204   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
205   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
206   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
207                            native implementation exists [no]
208   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
209   --enable-libx264         enable H.264 encoding via x264 [no]
210   --enable-libxavs         enable AVS encoding via xavs [no]
211   --enable-libxvid         enable Xvid encoding via xvidcore,
212                            native MPEG-4/Xvid encoder exists [no]
213   --enable-openal          enable OpenAL 1.1 capture support [no]
214   --enable-openssl         enable openssl [no]
215   --enable-zlib            enable zlib [autodetect]
216
217 Advanced options (experts only):
218   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
219   --enable-cross-compile   assume a cross-compiler is used
220   --sysroot=PATH           root of cross-build tree
221   --sysinclude=PATH        location of cross-build system headers
222   --target-os=OS           compiler targets OS [$target_os]
223   --target-exec=CMD        command to run executables on target
224   --target-path=DIR        path to view of build directory on target
225   --nm=NM                  use nm tool NM [$nm_default]
226   --ar=AR                  use archive tool AR [$ar_default]
227   --as=AS                  use assembler AS [$as_default]
228   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
229   --cc=CC                  use C compiler CC [$cc_default]
230   --cxx=CXX                use C compiler CXX [$cxx_default]
231   --ld=LD                  use linker LD [$ld_default]
232   --host-cc=HOSTCC         use host C compiler HOSTCC
233   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
234   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
235   --host-libs=HLIBS        use libs HLIBS when linking for host
236   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
237   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
238   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
239   --extra-libs=ELIBS       add ELIBS [$ELIBS]
240   --extra-version=STRING   version string suffix []
241   --optflags               override optimization-related compiler flags
242   --build-suffix=SUFFIX    library name suffix []
243   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
244   --progs-suffix=SUFFIX    program name suffix []
245   --arch=ARCH              select architecture [$arch]
246   --cpu=CPU                select the minimum required CPU (affects
247                            instruction selection, may crash on older CPUs)
248   --enable-pic             build position-independent code
249   --enable-sram            allow use of on-chip SRAM
250   --disable-symver         disable symbol versioning
251   --disable-fastdiv        disable table-based division
252   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
253   --disable-safe-bitstream-reader
254                            disable buffer boundary checking in bitreaders
255                            (faster, but may crash)
256   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
257
258 Optimization options (experts only):
259   --disable-asm            disable all assembler optimizations
260   --disable-altivec        disable AltiVec optimizations
261   --disable-amd3dnow       disable 3DNow! optimizations
262   --disable-amd3dnowext    disable 3DNow! extended optimizations
263   --disable-mmx            disable MMX optimizations
264   --disable-mmx2           disable MMX2 optimizations
265   --disable-sse            disable SSE optimizations
266   --disable-ssse3          disable SSSE3 optimizations
267   --disable-avx            disable AVX optimizations
268   --disable-armv5te        disable armv5te optimizations
269   --disable-armv6          disable armv6 optimizations
270   --disable-armv6t2        disable armv6t2 optimizations
271   --disable-armvfp         disable ARM VFP optimizations
272   --disable-mmi            disable MMI optimizations
273   --disable-neon           disable NEON optimizations
274   --disable-vis            disable VIS optimizations
275   --disable-yasm           disable use of yasm assembler
276   --disable-mips32r2       disable MIPS32R2 optimizations
277   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
278   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
279   --disable-mipsfpu        disable floating point MIPS optimizations
280   --disable-fast-unaligned consider unaligned accesses slow
281   --postproc-version=V     build libpostproc version V.
282                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
283
284 Developer options (useful when working on FFmpeg itself):
285   --enable-coverage        build with test coverage instrumentation
286   --disable-debug          disable debugging symbols
287   --enable-debug=LEVEL     set the debug level [$debuglevel]
288   --disable-optimizations  disable compiler optimizations
289   --enable-extra-warnings  enable more compiler warnings
290   --disable-stripping      disable stripping of executables and shared libraries
291   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
292                            2 causes a slowdown at runtime.
293   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
294   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
295                            leaks and errors, using the specified valgrind binary.
296                            Cannot be combined with --target-exec
297   --samples=PATH           location of test samples for FATE, if not set use
298                            \$FATE_SAMPLES at make invocation time.
299   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
300                            should be used only for debugging purposes)
301   --enable-random          randomly enable/disable components
302   --disable-random
303   --enable-random=LIST     randomly enable/disable specific components or
304   --disable-random=LIST    component groups. LIST is a comma-separated list
305                            of NAME[:PROB] entries where NAME is a component
306                            (group) and PROB the probability associated with
307                            NAME (default 0.5).
308   --random-seed=VALUE      seed value for --enable/disable-random
309
310 NOTE: Object files are built at the place where configure is launched.
311 EOF
312   exit 0
313 }
314
315 quotes='""'
316
317 log(){
318     echo "$@" >> $logfile
319 }
320
321 log_file(){
322     log BEGIN $1
323     pr -n -t $1 >> $logfile
324     log END $1
325 }
326
327 echolog(){
328     log "$@"
329     echo "$@"
330 }
331
332 warn(){
333     log "WARNING: $*"
334     WARNINGS="${WARNINGS}WARNING: $*\n"
335 }
336
337 die(){
338     echolog "$@"
339     cat <<EOF
340
341 If you think configure made a mistake, make sure you are using the latest
342 version from Git.  If the latest version fails, report the problem to the
343 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
344 EOF
345     if disabled logging; then
346         cat <<EOF
347 Rerun configure with logging enabled (do not use --disable-logging), and
348 include the log this produces with your report.
349 EOF
350     else
351 cat <<EOF
352 Include the log file "$logfile" produced by configure as this will help
353 solving the problem.
354 EOF
355     fi
356     exit 1
357 }
358
359 # Avoid locale weirdness, besides we really just want to translate ASCII.
360 toupper(){
361     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
362 }
363
364 tolower(){
365     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
366 }
367
368 c_escape(){
369     echo "$*" | sed 's/["\\]/\\\0/g'
370 }
371
372 sh_quote(){
373     v=$(echo "$1" | sed "s/'/'\\\\''/g")
374     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
375     echo "$v"
376 }
377
378 cleanws(){
379     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
380 }
381
382 filter(){
383     pat=$1
384     shift
385     for v; do
386         eval "case $v in $pat) echo $v ;; esac"
387     done
388 }
389
390 filter_out(){
391     pat=$1
392     shift
393     for v; do
394         eval "case $v in $pat) ;; *) echo $v ;; esac"
395     done
396 }
397
398 map(){
399     m=$1
400     shift
401     for v; do eval $m; done
402 }
403
404 set_all(){
405     value=$1
406     shift
407     for var in $*; do
408         eval $var=$value
409     done
410 }
411
412 set_weak(){
413     value=$1
414     shift
415     for var; do
416         eval : \${$var:=$value}
417     done
418 }
419
420 set_safe(){
421     var=$1
422     shift
423     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
424 }
425
426 get_safe(){
427     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
428 }
429
430 pushvar(){
431     for var in $*; do
432         eval level=\${${var}_level:=0}
433         eval ${var}_${level}="\$$var"
434         eval ${var}_level=$(($level+1))
435     done
436 }
437
438 popvar(){
439     for var in $*; do
440         eval level=\${${var}_level:-0}
441         test $level = 0 && continue
442         eval level=$(($level-1))
443         eval $var="\${${var}_${level}}"
444         eval ${var}_level=$level
445         eval unset ${var}_${level}
446     done
447 }
448
449 enable(){
450     set_all yes $*
451 }
452
453 disable(){
454     set_all no $*
455 }
456
457 enable_weak(){
458     set_weak yes $*
459 }
460
461 disable_weak(){
462     set_weak no $*
463 }
464
465 enable_safe(){
466     for var; do
467         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
468     done
469 }
470
471 disable_safe(){
472     for var; do
473         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474     done
475 }
476
477 do_enable_deep(){
478     for var; do
479         enabled $var && continue
480         eval sel="\$${var}_select"
481         eval sgs="\$${var}_suggest"
482         pushvar var sgs
483         enable_deep $sel
484         popvar sgs
485         enable_deep_weak $sgs
486         popvar var
487     done
488 }
489
490 enable_deep(){
491     do_enable_deep $*
492     enable $*
493 }
494
495 enable_deep_weak(){
496     do_enable_deep $*
497     enable_weak $*
498 }
499
500 enabled(){
501     test "${1#!}" = "$1" && op== || op=!=
502     eval test "x\$${1#!}" $op "xyes"
503 }
504
505 disabled(){
506     test "${1#!}" = "$1" && op== || op=!=
507     eval test "x\$${1#!}" $op "xno"
508 }
509
510 enabled_all(){
511     for opt; do
512         enabled $opt || return 1
513     done
514 }
515
516 disabled_all(){
517     for opt; do
518         disabled $opt || return 1
519     done
520 }
521
522 enabled_any(){
523     for opt; do
524         enabled $opt && return 0
525     done
526 }
527
528 disabled_any(){
529     for opt; do
530         disabled $opt && return 0
531     done
532     return 1
533 }
534
535 set_default(){
536     for opt; do
537         eval : \${$opt:=\$${opt}_default}
538     done
539 }
540
541 is_in(){
542     value=$1
543     shift
544     for var in $*; do
545         [ $var = $value ] && return 0
546     done
547     return 1
548 }
549
550 check_deps(){
551     for cfg; do
552         cfg="${cfg#!}"
553         enabled ${cfg}_checking && die "Circular dependency for $cfg."
554         disabled ${cfg}_checking && continue
555         enable ${cfg}_checking
556
557         eval dep_all="\$${cfg}_deps"
558         eval dep_any="\$${cfg}_deps_any"
559         eval dep_sel="\$${cfg}_select"
560         eval dep_sgs="\$${cfg}_suggest"
561         eval dep_ifa="\$${cfg}_if"
562         eval dep_ifn="\$${cfg}_if_any"
563
564         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
565         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
566         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
567
568         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
569         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
570         enabled_all  $dep_all || disable $cfg
571         enabled_any  $dep_any || disable $cfg
572         disabled_any $dep_sel && disable $cfg
573
574         if enabled $cfg; then
575             eval dep_extralibs="\$${cfg}_extralibs"
576             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
577             enable_deep $dep_sel
578             enable_deep_weak $dep_sgs
579         fi
580
581         disable ${cfg}_checking
582     done
583 }
584
585 print_config_h(){
586     enabled $1 && v=1 || v=0
587     echo "#define $2 $v"
588 }
589
590 print_config_mak(){
591     enabled $1 && v= || v=!
592     echo "$v$2=yes"
593 }
594
595 print_config_asm(){
596     enabled $1 && v=1 || v=0
597     echo "%define $2 $v"
598 }
599
600 print_config(){
601     pfx=$1
602     files=$2
603     shift 2
604     for cfg; do
605         ucname="$(toupper $cfg)"
606         for f in $files; do
607             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
608         done
609     done
610 }
611
612 print_enabled(){
613     test "$1" = -n && end=" " && shift || end="\n"
614     suf=$1
615     shift
616     for v; do
617         enabled $v && printf "%s$end" ${v%$suf};
618     done
619 }
620
621 append(){
622     var=$1
623     shift
624     eval "$var=\"\$$var $*\""
625 }
626
627 prepend(){
628     var=$1
629     shift
630     eval "$var=\"$* \$$var\""
631 }
632
633 add_cppflags(){
634     append CPPFLAGS "$@"
635 }
636
637 add_cflags(){
638     append CFLAGS $($cflags_filter "$@")
639 }
640
641 add_cxxflags(){
642     append CXXFLAGS $($cflags_filter "$@")
643 }
644
645 add_asflags(){
646     append ASFLAGS $($asflags_filter "$@")
647 }
648
649 add_ldflags(){
650     append LDFLAGS $($ldflags_filter "$@")
651 }
652
653 add_extralibs(){
654     prepend extralibs $($ldflags_filter "$@")
655 }
656
657 add_host_cflags(){
658     append host_cflags $($host_cflags_filter "$@")
659 }
660
661 add_host_ldflags(){
662     append host_ldflags $($host_ldflags_filter "$@")
663 }
664
665 check_cmd(){
666     log "$@"
667     "$@" >> $logfile 2>&1
668 }
669
670 check_cc(){
671     log check_cc "$@"
672     cat > $TMPC
673     log_file $TMPC
674     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
675 }
676
677 check_cxx(){
678     log check_cxx "$@"
679     cat > $TMPCPP
680     log_file $TMPCPP
681     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
682 }
683
684 check_cpp(){
685     log check_cpp "$@"
686     cat > $TMPC
687     log_file $TMPC
688     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
689 }
690
691 check_as(){
692     log check_as "$@"
693     cat > $TMPC
694     log_file $TMPC
695     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
696 }
697
698 check_asm(){
699     log check_asm "$@"
700     name="$1"
701     code="$2"
702     shift 2
703     disable $name
704     check_as "$@" <<EOF && enable $name
705 void foo(void){ __asm__ volatile($code); }
706 EOF
707 }
708
709 check_yasm(){
710     log check_yasm "$@"
711     echo "$1" > $TMPS
712     log_file $TMPS
713     shift 1
714     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
715 }
716
717 check_ld(){
718     log check_ld "$@"
719     type=$1
720     shift 1
721     flags=''
722     libs=''
723     for f; do
724         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
725     done
726     check_$type $($cflags_filter $flags) || return
727     flags=$($ldflags_filter $flags)
728     libs=$($ldflags_filter $libs)
729     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
730 }
731
732 check_code(){
733     log check_code "$@"
734     check=$1
735     headers=$2
736     code=$3
737     shift 3
738     {
739         for hdr in $headers; do
740             echo "#include <$hdr>"
741         done
742         echo "int main(void) { $code; return 0; }"
743     } | check_$check "$@"
744 }
745
746 check_cppflags(){
747     log check_cppflags "$@"
748     check_cc "$@" <<EOF && append CPPFLAGS "$@"
749 int x;
750 EOF
751 }
752
753 check_cflags(){
754     log check_cflags "$@"
755     set -- $($cflags_filter "$@")
756     check_cc "$@" <<EOF && append CFLAGS "$@"
757 int x;
758 EOF
759 }
760
761 check_cxxflags(){
762     log check_cxxflags "$@"
763     set -- $($cflags_filter "$@")
764     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
765 int x;
766 EOF
767 }
768
769 test_ldflags(){
770     log test_ldflags "$@"
771     check_ld "cc" "$@" <<EOF
772 int main(void){ return 0; }
773 EOF
774 }
775
776 check_ldflags(){
777     log check_ldflags "$@"
778     test_ldflags "$@" && add_ldflags "$@"
779 }
780
781 check_header(){
782     log check_header "$@"
783     header=$1
784     shift
785     disable_safe $header
786     check_cpp "$@" <<EOF && enable_safe $header
787 #include <$header>
788 int x;
789 EOF
790 }
791
792 check_func(){
793     log check_func "$@"
794     func=$1
795     shift
796     disable $func
797     check_ld "cc" "$@" <<EOF && enable $func
798 extern int $func();
799 int main(void){ $func(); }
800 EOF
801 }
802
803 check_mathfunc(){
804     log check_mathfunc "$@"
805     func=$1
806     shift
807     disable $func
808     check_ld "cc" "$@" <<EOF && enable $func
809 #include <math.h>
810 float foo(float f) { return $func(f); }
811 int main(void){ return (int) foo; }
812 EOF
813 }
814
815 check_func_headers(){
816     log check_func_headers "$@"
817     headers=$1
818     funcs=$2
819     shift 2
820     {
821         for hdr in $headers; do
822             echo "#include <$hdr>"
823         done
824         for func in $funcs; do
825             echo "long check_$func(void) { return (long) $func; }"
826         done
827         echo "int main(void) { return 0; }"
828     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
829 }
830
831 check_class_headers_cpp(){
832     log check_class_headers_cpp "$@"
833     headers=$1
834     classes=$2
835     shift 2
836     {
837         for hdr in $headers; do
838             echo "#include <$hdr>"
839         done
840         echo "int main(void) { "
841         i=1
842         for class in $classes; do
843             echo "$class obj$i;"
844             i=$(expr $i + 1)
845         done
846         echo "return 0; }"
847     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
848 }
849
850 check_cpp_condition(){
851     log check_cpp_condition "$@"
852     header=$1
853     condition=$2
854     shift 2
855     check_cpp "$@" <<EOF
856 #include <$header>
857 #if !($condition)
858 #error "unsatisfied condition: $condition"
859 #endif
860 EOF
861 }
862
863 check_lib(){
864     log check_lib "$@"
865     header="$1"
866     func="$2"
867     shift 2
868     check_header $header && check_func $func "$@" && add_extralibs "$@"
869 }
870
871 check_lib2(){
872     log check_lib2 "$@"
873     headers="$1"
874     funcs="$2"
875     shift 2
876     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
877 }
878
879 check_lib_cpp(){
880     log check_lib_cpp "$@"
881     headers="$1"
882     classes="$2"
883     shift 2
884     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
885 }
886
887 check_pkg_config(){
888     log check_pkg_config "$@"
889     pkg="$1"
890     headers="$2"
891     funcs="$3"
892     shift 3
893     $pkg_config --exists $pkg 2>/dev/null || return
894     pkg_cflags=$($pkg_config --cflags $pkg)
895     pkg_libs=$($pkg_config --libs $pkg)
896     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
897         set_safe ${pkg}_cflags $pkg_cflags   &&
898         set_safe ${pkg}_libs   $pkg_libs
899 }
900
901 check_exec(){
902     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
903 }
904
905 check_exec_crash(){
906     code=$(cat)
907
908     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
909     # are safe but may not be available everywhere.  Thus we use
910     # raise(SIGTERM) instead.  The check is run in a subshell so we
911     # can redirect the "Terminated" message from the shell.  SIGBUS
912     # is not defined by standard C so it is used conditionally.
913
914     (check_exec "$@") >> $logfile 2>&1 <<EOF
915 #include <signal.h>
916 static void sighandler(int sig){
917     raise(SIGTERM);
918 }
919 int func(void){
920     $code
921 }
922 int (*func_ptr)(void) = func;
923 int main(void){
924     signal(SIGILL, sighandler);
925     signal(SIGFPE, sighandler);
926     signal(SIGSEGV, sighandler);
927 #ifdef SIGBUS
928     signal(SIGBUS, sighandler);
929 #endif
930     return func_ptr();
931 }
932 EOF
933 }
934
935 check_type(){
936     log check_type "$@"
937     headers=$1
938     type=$2
939     shift 2
940     disable_safe "$type"
941     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
942 }
943
944 check_struct(){
945     log check_type "$@"
946     headers=$1
947     struct=$2
948     member=$3
949     shift 3
950     disable_safe "${struct}_${member}"
951     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
952         enable_safe "${struct}_${member}"
953 }
954
955 require(){
956     name="$1"
957     header="$2"
958     func="$3"
959     shift 3
960     check_lib $header $func "$@" || die "ERROR: $name not found"
961 }
962
963 require2(){
964     name="$1"
965     headers="$2"
966     func="$3"
967     shift 3
968     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
969 }
970
971 require_cpp(){
972     name="$1"
973     headers="$2"
974     classes="$3"
975     shift 3
976     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
977 }
978
979 require_pkg_config(){
980     pkg="$1"
981     check_pkg_config "$@" || die "ERROR: $pkg not found"
982     add_cflags    $(get_safe ${pkg}_cflags)
983     add_extralibs $(get_safe ${pkg}_libs)
984 }
985
986 check_host_cc(){
987     log check_host_cc "$@"
988     cat > $TMPC
989     log_file $TMPC
990     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
991 }
992
993 check_host_cflags(){
994     log check_host_cflags "$@"
995     set -- $($host_cflags_filter "$@")
996     check_host_cc "$@" <<EOF && append host_cflags "$@"
997 int x;
998 EOF
999 }
1000
1001 apply(){
1002     file=$1
1003     shift
1004     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1005 }
1006
1007 cp_if_changed(){
1008     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1009     mkdir -p "$(dirname $2)"
1010     cp -f "$1" "$2"
1011 }
1012
1013 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1014 # system-dependent things.
1015
1016 COMPONENT_LIST="
1017     bsfs
1018     decoders
1019     demuxers
1020     encoders
1021     filters
1022     hwaccels
1023     indevs
1024     muxers
1025     outdevs
1026     parsers
1027     protocols
1028 "
1029
1030 PROGRAM_LIST="
1031     ffplay
1032     ffprobe
1033     ffserver
1034     ffmpeg
1035 "
1036
1037 CONFIG_LIST="
1038     $COMPONENT_LIST
1039     $PROGRAM_LIST
1040     ac3dsp
1041     avcodec
1042     avdevice
1043     avfilter
1044     avformat
1045     avresample
1046     avisynth
1047     bzlib
1048     crystalhd
1049     dct
1050     doc
1051     dwt
1052     dxva2
1053     fast_unaligned
1054     fastdiv
1055     fft
1056     fontconfig
1057     frei0r
1058     gnutls
1059     gpl
1060     gray
1061     hardcoded_tables
1062     libaacplus
1063     libass
1064     libbluray
1065     libcaca
1066     libcdio
1067     libcelt
1068     libdc1394
1069     libfaac
1070     libfdk_aac
1071     libfreetype
1072     libgsm
1073     libiec61883
1074     libilbc
1075     libmodplug
1076     libmp3lame
1077     libnut
1078     libopencore_amrnb
1079     libopencore_amrwb
1080     libopencv
1081     libopenjpeg
1082     libopus
1083     libpulse
1084     librtmp
1085     libschroedinger
1086     libspeex
1087     libstagefright_h264
1088     libtheora
1089     libutvideo
1090     libv4l2
1091     libvo_aacenc
1092     libvo_amrwbenc
1093     libvorbis
1094     libvpx
1095     libx264
1096     libxavs
1097     libxvid
1098     lsp
1099     mdct
1100     memalign_hack
1101     memory_poisoning
1102     mpegaudiodsp
1103     network
1104     nonfree
1105     openal
1106     openssl
1107     pic
1108     postproc
1109     rdft
1110     rtpdec
1111     runtime_cpudetect
1112     safe_bitstream_reader
1113     shared
1114     sinewin
1115     small
1116     sram
1117     static
1118     swresample
1119     swscale
1120     swscale_alpha
1121     thumb
1122     vaapi
1123     vda
1124     vdpau
1125     version3
1126     xmm_clobber_test
1127     x11grab
1128     zlib
1129 "
1130
1131 THREADS_LIST='
1132     pthreads
1133     w32threads
1134     os2threads
1135 '
1136
1137 ARCH_LIST='
1138     alpha
1139     arm
1140     avr32
1141     avr32_ap
1142     avr32_uc
1143     bfin
1144     ia64
1145     m68k
1146     mips
1147     mips64
1148     parisc
1149     ppc
1150     ppc64
1151     s390
1152     sh4
1153     sparc
1154     sparc64
1155     tomi
1156     x86
1157     x86_32
1158     x86_64
1159 '
1160
1161 ARCH_EXT_LIST='
1162     altivec
1163     amd3dnow
1164     amd3dnowext
1165     armv5te
1166     armv6
1167     armv6t2
1168     armvfp
1169     avx
1170     mmi
1171     mmx
1172     mmx2
1173     neon
1174     ppc4xx
1175     sse
1176     ssse3
1177     vfpv3
1178     vis
1179     mipsfpu
1180     mips32r2
1181     mipsdspr1
1182     mipsdspr2
1183 '
1184
1185 HAVE_LIST_PUB='
1186     bigendian
1187     fast_unaligned
1188 '
1189
1190 HAVE_LIST="
1191     $ARCH_EXT_LIST
1192     $HAVE_LIST_PUB
1193     $THREADS_LIST
1194     aligned_malloc
1195     aligned_stack
1196     alsa_asoundlib_h
1197     altivec_h
1198     arpa_inet_h
1199     asm_mod_y
1200     asm_types_h
1201     attribute_may_alias
1202     attribute_packed
1203     cbrtf
1204     clock_gettime
1205     closesocket
1206     cmov
1207     cpuid
1208     dcbzl
1209     dev_bktr_ioctl_bt848_h
1210     dev_bktr_ioctl_meteor_h
1211     dev_ic_bt8xx_h
1212     dev_video_bktr_ioctl_bt848_h
1213     dev_video_meteor_ioctl_meteor_h
1214     dlfcn_h
1215     dlopen
1216     dos_paths
1217     dxva_h
1218     ebp_available
1219     ebx_available
1220     exp2
1221     exp2f
1222     fast_64bit
1223     fast_clz
1224     fast_cmov
1225     fcntl
1226     fork
1227     getaddrinfo
1228     gethrtime
1229     getopt
1230     GetProcessAffinityMask
1231     GetProcessMemoryInfo
1232     GetProcessTimes
1233     GetSystemTimeAsFileTime
1234     getrusage
1235     gettimeofday
1236     glob
1237     gnu_as
1238     ibm_asm
1239     inet_aton
1240     inline_asm
1241     isatty
1242     isinf
1243     isnan
1244     jack_port_get_latency_range
1245     kbhit
1246     ldbrx
1247     libdc1394_1
1248     libdc1394_2
1249     llrint
1250     llrintf
1251     local_aligned_16
1252     local_aligned_8
1253     localtime_r
1254     log2
1255     log2f
1256     loongson
1257     lrint
1258     lrintf
1259     lzo1x_999_compress
1260     machine_ioctl_bt848_h
1261     machine_ioctl_meteor_h
1262     makeinfo
1263     malloc_h
1264     MapViewOfFile
1265     memalign
1266     mkstemp
1267     mm_empty
1268     mmap
1269     nanosleep
1270     netinet_sctp_h
1271     PeekNamedPipe
1272     pod2man
1273     poll_h
1274     posix_memalign
1275     pthread_cancel
1276     rdtsc
1277     rint
1278     round
1279     roundf
1280     rweflags
1281     sched_getaffinity
1282     sdl
1283     sdl_video_size
1284     setmode
1285     setrlimit
1286     Sleep
1287     sndio_h
1288     socklen_t
1289     soundcard_h
1290     strerror_r
1291     strptime
1292     struct_addrinfo
1293     struct_group_source_req
1294     struct_ip_mreq_source
1295     struct_ipv6_mreq
1296     struct_pollfd
1297     struct_rusage_ru_maxrss
1298     struct_sockaddr_in6
1299     struct_sockaddr_sa_len
1300     struct_sockaddr_storage
1301     struct_v4l2_frmivalenum_discrete
1302     symver
1303     symver_asm_label
1304     symver_gnu_asm
1305     sysconf
1306     sysctl
1307     sys_mman_h
1308     sys_param_h
1309     sys_resource_h
1310     sys_select_h
1311     sys_soundcard_h
1312     sys_time_h
1313     sys_videoio_h
1314     termios_h
1315     texi2html
1316     threads
1317     trunc
1318     truncf
1319     unistd_h
1320     usleep
1321     vfp_args
1322     VirtualAlloc
1323     windows_h
1324     winsock2_h
1325     xform_asm
1326     xgetbv
1327     xmm_clobbers
1328     yasm
1329 "
1330
1331 # options emitted with CONFIG_ prefix but not available on command line
1332 CONFIG_EXTRA="
1333     aandct
1334     avutil
1335     golomb
1336     gplv3
1337     h264chroma
1338     h264dsp
1339     h264pred
1340     h264qpel
1341     huffman
1342     lgplv3
1343     lpc
1344     vp3dsp
1345 "
1346
1347 CMDLINE_SELECT="
1348     $ARCH_EXT_LIST
1349     $CONFIG_LIST
1350     $THREADS_LIST
1351     asm
1352     coverage
1353     cross_compile
1354     debug
1355     extra_warnings
1356     logging
1357     optimizations
1358     stripping
1359     symver
1360     yasm
1361 "
1362
1363 PATHS_LIST='
1364     bindir
1365     datadir
1366     incdir
1367     libdir
1368     mandir
1369     prefix
1370     shlibdir
1371 '
1372
1373 CMDLINE_SET="
1374     $PATHS_LIST
1375     ar
1376     arch
1377     as
1378     assert_level
1379     build_suffix
1380     cc
1381     cpu
1382     cross_prefix
1383     cxx
1384     dep_cc
1385     extra_version
1386     host_cc
1387     host_cflags
1388     host_ldflags
1389     host_libs
1390     host_os
1391     install
1392     ld
1393     logfile
1394     malloc_prefix
1395     nm
1396     optflags
1397     pkg_config
1398     postproc_version
1399     progs_suffix
1400     random_seed
1401     samples
1402     strip
1403     sysinclude
1404     sysroot
1405     target_exec
1406     target_os
1407     target_path
1408     valgrind
1409     yasmexe
1410 "
1411
1412 CMDLINE_APPEND="
1413     extra_cflags
1414     extra_cxxflags
1415 "
1416
1417 # code dependency declarations
1418
1419 # architecture extensions
1420
1421 armv5te_deps="arm"
1422 armv6_deps="arm"
1423 armv6t2_deps="arm"
1424 armvfp_deps="arm"
1425 neon_deps="arm"
1426 vfpv3_deps="armvfp"
1427
1428 mipsfpu_deps="mips"
1429 mips32r2_deps="mips"
1430 mipsdspr1_deps="mips"
1431 mipsdspr2_deps="mips"
1432 mmi_deps="mips"
1433
1434 altivec_deps="ppc"
1435 ppc4xx_deps="ppc"
1436
1437 vis_deps="sparc"
1438
1439 x86_64_suggest="cmov fast_cmov"
1440 amd3dnow_deps="mmx"
1441 amd3dnowext_deps="amd3dnow"
1442 mmx_deps="x86"
1443 mmx2_deps="mmx"
1444 sse_deps="mmx"
1445 ssse3_deps="sse"
1446 avx_deps="ssse3"
1447
1448 aligned_stack_if_any="ppc x86"
1449 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1450 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1451 fast_unaligned_if_any="armv6 ppc x86"
1452
1453 inline_asm_deps="!tms470"
1454 need_memalign="altivec neon sse"
1455
1456 symver_if_any="symver_asm_label symver_gnu_asm"
1457
1458 # subsystems
1459 dct_select="rdft"
1460 mdct_select="fft"
1461 rdft_select="fft"
1462 mpegaudiodsp_select="dct"
1463
1464 # decoders / encoders / hardware accelerators
1465 aac_decoder_select="mdct sinewin"
1466 aac_encoder_select="mdct sinewin"
1467 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1468 ac3_decoder_select="mdct ac3dsp ac3_parser"
1469 ac3_encoder_select="mdct ac3dsp"
1470 ac3_fixed_encoder_select="mdct ac3dsp"
1471 alac_encoder_select="lpc"
1472 amrnb_decoder_select="lsp"
1473 amrwb_decoder_select="lsp"
1474 amv_encoder_select="aandct"
1475 atrac1_decoder_select="mdct sinewin"
1476 atrac3_decoder_select="mdct"
1477 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1478 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1479 cavs_decoder_select="golomb"
1480 cook_decoder_select="mdct sinewin"
1481 cscd_decoder_suggest="zlib"
1482 dca_decoder_select="mdct"
1483 dirac_decoder_select="dwt golomb"
1484 dnxhd_encoder_select="aandct"
1485 dxa_decoder_select="zlib"
1486 eac3_decoder_select="ac3_decoder"
1487 eac3_encoder_select="mdct ac3dsp"
1488 eamad_decoder_select="aandct"
1489 eatgq_decoder_select="aandct"
1490 eatqi_decoder_select="aandct"
1491 exr_decoder_select="zlib"
1492 ffv1_decoder_select="golomb"
1493 flac_decoder_select="golomb"
1494 flac_encoder_select="golomb lpc"
1495 flashsv_decoder_select="zlib"
1496 flashsv_encoder_select="zlib"
1497 flashsv2_encoder_select="zlib"
1498 flashsv2_decoder_select="zlib"
1499 flv_decoder_select="h263_decoder"
1500 flv_encoder_select="h263_encoder"
1501 fraps_decoder_select="huffman"
1502 h261_encoder_select="aandct"
1503 h263_decoder_select="h263_parser"
1504 h263_encoder_select="aandct"
1505 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1506 h263i_decoder_select="h263_decoder"
1507 h263p_encoder_select="h263_encoder"
1508 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1509 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1510 h264_dxva2_hwaccel_deps="dxva2api_h"
1511 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1512 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1513 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1514 h264_vda_hwaccel_select="vda h264_decoder"
1515 h264_vdpau_decoder_select="vdpau h264_decoder"
1516 iac_decoder_select="fft mdct sinewin"
1517 imc_decoder_select="fft mdct sinewin"
1518 jpegls_decoder_select="golomb"
1519 jpegls_encoder_select="golomb"
1520 ljpeg_encoder_select="aandct"
1521 loco_decoder_select="golomb"
1522 mjpeg_encoder_select="aandct"
1523 mlp_decoder_select="mlp_parser"
1524 mp1_decoder_select="mpegaudiodsp"
1525 mp1float_decoder_select="mpegaudiodsp"
1526 mp2_decoder_select="mpegaudiodsp"
1527 mp2float_decoder_select="mpegaudiodsp"
1528 mp3_decoder_select="mpegaudiodsp"
1529 mp3adu_decoder_select="mpegaudiodsp"
1530 mp3adufloat_decoder_select="mpegaudiodsp"
1531 mp3float_decoder_select="mpegaudiodsp"
1532 mp3on4_decoder_select="mpegaudiodsp"
1533 mp3on4float_decoder_select="mpegaudiodsp"
1534 mpc7_decoder_select="mpegaudiodsp"
1535 mpc8_decoder_select="mpegaudiodsp"
1536 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1537 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1538 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1539 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1540 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1541 mpeg1video_encoder_select="aandct"
1542 mpeg2_crystalhd_decoder_select="crystalhd"
1543 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1544 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1545 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1546 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1547 mpeg2video_encoder_select="aandct"
1548 mpeg4_crystalhd_decoder_select="crystalhd"
1549 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1550 mpeg4_encoder_select="h263_encoder"
1551 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1552 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1553 msmpeg4_crystalhd_decoder_select="crystalhd"
1554 msmpeg4v1_decoder_select="h263_decoder"
1555 msmpeg4v1_encoder_select="h263_encoder"
1556 msmpeg4v2_decoder_select="h263_decoder"
1557 msmpeg4v2_encoder_select="h263_encoder"
1558 msmpeg4v3_decoder_select="h263_decoder"
1559 msmpeg4v3_encoder_select="h263_encoder"
1560 nellymoser_decoder_select="mdct sinewin"
1561 nellymoser_encoder_select="mdct sinewin"
1562 png_decoder_select="zlib"
1563 png_encoder_select="zlib"
1564 qcelp_decoder_select="lsp"
1565 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1566 ra_144_encoder_select="lpc"
1567 ralf_decoder_select="golomb"
1568 rv10_decoder_select="h263_decoder"
1569 rv10_encoder_select="h263_encoder"
1570 rv20_decoder_select="h263_decoder"
1571 rv20_encoder_select="h263_encoder"
1572 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1573 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1574 shorten_decoder_select="golomb"
1575 sipr_decoder_select="lsp"
1576 snow_decoder_select="dwt"
1577 snow_encoder_select="aandct dwt"
1578 sonic_decoder_select="golomb"
1579 sonic_encoder_select="golomb"
1580 sonic_ls_encoder_select="golomb"
1581 svq1_encoder_select="aandct"
1582 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1583 svq3_decoder_suggest="zlib"
1584 theora_decoder_select="vp3_decoder"
1585 tiff_decoder_suggest="zlib"
1586 tiff_encoder_suggest="zlib"
1587 tscc_decoder_select="zlib"
1588 twinvq_decoder_select="mdct lsp sinewin"
1589 vc1_crystalhd_decoder_select="crystalhd"
1590 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1591 vc1_dxva2_hwaccel_deps="dxva2api_h"
1592 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1593 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1594 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1595 vc1image_decoder_select="vc1_decoder"
1596 vorbis_decoder_select="mdct"
1597 vorbis_encoder_select="mdct"
1598 vp3_decoder_select="vp3dsp"
1599 vp5_decoder_select="vp3dsp"
1600 vp6_decoder_select="huffman vp3dsp"
1601 vp6a_decoder_select="vp6_decoder"
1602 vp6f_decoder_select="vp6_decoder"
1603 vp8_decoder_select="h264pred h264qpel"
1604 wmapro_decoder_select="mdct sinewin"
1605 wmav1_decoder_select="mdct sinewin"
1606 wmav1_encoder_select="mdct sinewin"
1607 wmav2_decoder_select="mdct sinewin"
1608 wmav2_encoder_select="mdct sinewin"
1609 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1610 wmv1_decoder_select="h263_decoder"
1611 wmv1_encoder_select="h263_encoder"
1612 wmv2_decoder_select="h263_decoder"
1613 wmv2_encoder_select="h263_encoder"
1614 wmv3_decoder_select="vc1_decoder"
1615 wmv3_crystalhd_decoder_select="crystalhd"
1616 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1617 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1618 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1619 wmv3image_decoder_select="wmv3_decoder"
1620 zerocodec_decoder_select="zlib"
1621 zlib_decoder_select="zlib"
1622 zlib_encoder_select="zlib"
1623 zmbv_decoder_select="zlib"
1624 zmbv_encoder_select="zlib"
1625
1626 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1627 vaapi_deps="va_va_h"
1628 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1629 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1630
1631 # parsers
1632 h264_parser_select="golomb h264dsp h264pred"
1633
1634 # external libraries
1635 libaacplus_encoder_deps="libaacplus"
1636 libcelt_decoder_deps="libcelt"
1637 libfaac_encoder_deps="libfaac"
1638 libfdk_aac_encoder_deps="libfdk_aac"
1639 libgsm_decoder_deps="libgsm"
1640 libgsm_encoder_deps="libgsm"
1641 libgsm_ms_decoder_deps="libgsm"
1642 libgsm_ms_encoder_deps="libgsm"
1643 libilbc_decoder_deps="libilbc"
1644 libilbc_encoder_deps="libilbc"
1645 libmodplug_demuxer_deps="libmodplug"
1646 libmp3lame_encoder_deps="libmp3lame"
1647 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1648 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1649 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1650 libopenjpeg_decoder_deps="libopenjpeg"
1651 libopenjpeg_encoder_deps="libopenjpeg"
1652 libopus_decoder_deps="libopus"
1653 libschroedinger_decoder_deps="libschroedinger"
1654 libschroedinger_encoder_deps="libschroedinger"
1655 libspeex_decoder_deps="libspeex"
1656 libspeex_encoder_deps="libspeex"
1657 libstagefright_h264_decoder_deps="libstagefright_h264"
1658 libtheora_encoder_deps="libtheora"
1659 libvo_aacenc_encoder_deps="libvo_aacenc"
1660 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1661 libvorbis_decoder_deps="libvorbis"
1662 libvorbis_encoder_deps="libvorbis"
1663 libvpx_decoder_deps="libvpx"
1664 libvpx_encoder_deps="libvpx"
1665 libx264_encoder_deps="libx264"
1666 libx264rgb_encoder_deps="libx264"
1667 libxavs_encoder_deps="libxavs"
1668 libxvid_encoder_deps="libxvid"
1669 libutvideo_decoder_deps="libutvideo"
1670 libutvideo_encoder_deps="libutvideo"
1671
1672 # demuxers / muxers
1673 ac3_demuxer_select="ac3_parser"
1674 asf_stream_muxer_select="asf_muxer"
1675 avisynth_demuxer_deps="avisynth"
1676 dirac_demuxer_select="dirac_parser"
1677 eac3_demuxer_select="ac3_parser"
1678 flac_demuxer_select="flac_parser"
1679 ipod_muxer_select="mov_muxer"
1680 libnut_demuxer_deps="libnut"
1681 libnut_muxer_deps="libnut"
1682 matroska_audio_muxer_select="matroska_muxer"
1683 matroska_demuxer_suggest="zlib bzlib"
1684 mov_demuxer_suggest="zlib"
1685 mp3_demuxer_select="mpegaudio_parser"
1686 mp4_muxer_select="mov_muxer"
1687 mpegts_muxer_select="adts_muxer latm_muxer"
1688 mpegtsraw_demuxer_select="mpegts_demuxer"
1689 mxf_d10_muxer_select="mxf_muxer"
1690 ogg_demuxer_select="golomb"
1691 psp_muxer_select="mov_muxer"
1692 rtp_demuxer_select="sdp_demuxer"
1693 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1694 rtsp_demuxer_select="http_protocol rtpdec"
1695 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1696 sap_demuxer_select="sdp_demuxer"
1697 sap_muxer_select="rtp_muxer rtp_protocol"
1698 sdp_demuxer_select="rtpdec"
1699 spdif_muxer_select="aac_parser"
1700 tg2_muxer_select="mov_muxer"
1701 tgp_muxer_select="mov_muxer"
1702 w64_demuxer_deps="wav_demuxer"
1703
1704 # indevs / outdevs
1705 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1706 alsa_outdev_deps="alsa_asoundlib_h"
1707 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1708 caca_outdev_deps="libcaca"
1709 dshow_indev_deps="IBaseFilter"
1710 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1711 dv1394_indev_deps="dv1394 dv_demuxer"
1712 fbdev_indev_deps="linux_fb_h"
1713 iec61883_indev_deps="libiec61883"
1714 jack_indev_deps="jack_jack_h sem_timedwait"
1715 lavfi_indev_deps="avfilter"
1716 libcdio_indev_deps="libcdio"
1717 libdc1394_indev_deps="libdc1394"
1718 libv4l2_indev_deps="libv4l2"
1719 openal_indev_deps="openal"
1720 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1721 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1722 pulse_indev_deps="libpulse"
1723 sdl_outdev_deps="sdl"
1724 sndio_indev_deps="sndio_h"
1725 sndio_outdev_deps="sndio_h"
1726 v4l_indev_deps="linux_videodev_h"
1727 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1728 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1729 vfwcap_indev_extralibs="-lavicap32"
1730 x11_grab_device_indev_deps="x11grab"
1731
1732 # protocols
1733 bluray_protocol_deps="libbluray"
1734 ffrtmphttp_protocol_deps="!librtmp_protocol"
1735 ffrtmphttp_protocol_select="http_protocol"
1736 gopher_protocol_deps="network"
1737 httpproxy_protocol_deps="network"
1738 httpproxy_protocol_select="tcp_protocol"
1739 http_protocol_deps="network"
1740 http_protocol_select="tcp_protocol"
1741 https_protocol_select="tls_protocol"
1742 librtmp_protocol_deps="librtmp"
1743 librtmpe_protocol_deps="librtmp"
1744 librtmps_protocol_deps="librtmp"
1745 librtmpt_protocol_deps="librtmp"
1746 librtmpte_protocol_deps="librtmp"
1747 mmsh_protocol_select="http_protocol"
1748 mmst_protocol_deps="network"
1749 rtmp_protocol_deps="!librtmp_protocol"
1750 rtmp_protocol_select="tcp_protocol"
1751 rtmps_protocol_deps="!librtmp_protocol"
1752 rtmps_protocol_select="tls_protocol"
1753 rtmpt_protocol_select="ffrtmphttp_protocol"
1754 rtmpts_protocol_select="ffrtmphttp_protocol"
1755 rtp_protocol_select="udp_protocol"
1756 sctp_protocol_deps="network netinet_sctp_h"
1757 tcp_protocol_deps="network"
1758 tls_protocol_deps_any="openssl gnutls"
1759 tls_protocol_select="tcp_protocol"
1760 udp_protocol_deps="network"
1761
1762 # filters
1763 aconvert_filter_deps="swresample"
1764 amovie_filter_deps="avcodec avformat"
1765 aresample_filter_deps="swresample"
1766 ass_filter_deps="libass"
1767 asyncts_filter_deps="avresample"
1768 atempo_filter_deps="avcodec rdft"
1769 blackframe_filter_deps="gpl"
1770 boxblur_filter_deps="gpl"
1771 colormatrix_filter_deps="gpl"
1772 cropdetect_filter_deps="gpl"
1773 delogo_filter_deps="gpl"
1774 deshake_filter_deps="avcodec"
1775 drawtext_filter_deps="libfreetype"
1776 frei0r_filter_deps="frei0r dlopen"
1777 frei0r_filter_extralibs='$ldl'
1778 frei0r_src_filter_deps="frei0r dlopen"
1779 frei0r_src_filter_extralibs='$ldl'
1780 hqdn3d_filter_deps="gpl"
1781 movie_filter_deps="avcodec avformat"
1782 mp_filter_deps="gpl avcodec swscale postproc"
1783 mptestsrc_filter_deps="gpl"
1784 negate_filter_deps="lut_filter"
1785 resample_filter_deps="avresample"
1786 ocv_filter_deps="libopencv"
1787 pan_filter_deps="swresample"
1788 removelogo_filter_deps="avcodec avformat swscale"
1789 scale_filter_deps="swscale"
1790 select_filter_deps="avcodec"
1791 super2xsai_filter_deps="gpl"
1792 tinterlace_filter_deps="gpl"
1793 yadif_filter_deps="gpl"
1794
1795 # libraries
1796 avdevice_deps="avcodec avformat"
1797 avformat_deps="avcodec"
1798 postproc_deps="gpl"
1799
1800 # programs
1801 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1802 ffmpeg_select="buffersink_filter format_filter aformat_filter
1803                setpts_filter null_filter anull_filter abuffersink_filter"
1804 ffplay_deps="avcodec avformat swscale swresample sdl"
1805 ffplay_select="buffersink_filter rdft"
1806 ffprobe_deps="avcodec avformat"
1807 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1808 ffserver_extralibs='$ldl'
1809
1810 doc_deps_any="texi2html makeinfo pod2man"
1811
1812 # tests
1813
1814 test_deps(){
1815     suf1=$1
1816     suf2=$2
1817     shift 2
1818     for v; do
1819         dep=${v%=*}
1820         tests=${v#*=}
1821         for name in ${tests}; do
1822             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1823         done
1824     done
1825 }
1826
1827 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1828
1829 test_deps _muxer _demuxer                                               \
1830     aiff                                                                \
1831     pcm_alaw=alaw                                                       \
1832     asf                                                                 \
1833     au                                                                  \
1834     avi                                                                 \
1835     dv=dv_fmt                                                           \
1836     ffm                                                                 \
1837     flv=flv_fmt                                                         \
1838     gxf                                                                 \
1839     matroska=mkv                                                        \
1840     mmf                                                                 \
1841     mov="mov ismv"                                                      \
1842     pcm_mulaw=mulaw                                                     \
1843     mxf="mxf mxf_d10"                                                   \
1844     nut                                                                 \
1845     ogg="ogg ogg_vp3"                                                   \
1846     rawvideo=pixfmt                                                     \
1847     rm                                                                  \
1848     swf                                                                 \
1849     mpegts=ts                                                           \
1850     voc                                                                 \
1851     wav                                                                 \
1852     yuv4mpegpipe=yuv4mpeg                                               \
1853
1854 colormatrix1_test_deps="colormatrix_filter"
1855 colormatrix2_test_deps="colormatrix_filter"
1856 flashsv2_test_deps="zlib"
1857 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1858 mpng_test_deps="zlib"
1859 pp_test_deps="mp_filter"
1860 pp2_test_deps="mp_filter"
1861 pp3_test_deps="mp_filter"
1862 pp4_test_deps="mp_filter"
1863 pp5_test_deps="mp_filter"
1864 pp6_test_deps="mp_filter"
1865 zlib_test_deps="zlib"
1866 zmbv_test_deps="zlib"
1867
1868 # default parameters
1869
1870 logfile="config.log"
1871
1872 # installation paths
1873 prefix_default="/usr/local"
1874 bindir_default='${prefix}/bin'
1875 datadir_default='${prefix}/share/ffmpeg'
1876 incdir_default='${prefix}/include'
1877 libdir_default='${prefix}/lib'
1878 mandir_default='${prefix}/share/man'
1879 shlibdir_default="$libdir_default"
1880 postproc_version_default="current"
1881
1882 # toolchain
1883 ar_default="ar"
1884 cc_default="gcc"
1885 cxx_default="g++"
1886 host_cc_default="gcc"
1887 install="install"
1888 ln_s="ln -sf"
1889 nm_default="nm"
1890 objformat="elf"
1891 pkg_config_default=pkg-config
1892 ranlib="ranlib"
1893 strip_default="strip"
1894 yasmexe_default="yasm"
1895
1896 nm_opts='-g'
1897 nogas=":"
1898
1899 # machine
1900 arch_default=$(uname -m)
1901 cpu="generic"
1902
1903 # OS
1904 target_os_default=$(tolower $(uname -s))
1905 host_os=$target_os_default
1906
1907 # alternative libpostproc version
1908 ALT_PP_VER_MAJOR=51
1909 ALT_PP_VER_MINOR=2
1910 ALT_PP_VER_MICRO=101
1911 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1912
1913 # configurable options
1914 enable $PROGRAM_LIST
1915
1916 enable avcodec
1917 enable avdevice
1918 enable avfilter
1919 enable avformat
1920 enable avutil
1921 enable postproc
1922 enable stripping
1923 enable swresample
1924 enable swscale
1925
1926 enable asm
1927 enable debug
1928 enable doc
1929 enable fastdiv
1930 enable network
1931 enable optimizations
1932 enable safe_bitstream_reader
1933 enable static
1934 enable swscale_alpha
1935
1936 # build settings
1937 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1938 FFSERVERLDFLAGS=-Wl,-E
1939 LIBPREF="lib"
1940 LIBSUF=".a"
1941 FULLNAME='$(NAME)$(BUILDSUF)'
1942 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1943 SLIBPREF="lib"
1944 SLIBSUF=".so"
1945 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1946 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1947 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1948 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1949 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1950 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1951
1952 asflags_filter=echo
1953 cflags_filter=echo
1954 ldflags_filter=echo
1955
1956 AS_O='-o $@'
1957 CC_O='-o $@'
1958 CXX_O='-o $@'
1959
1960 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1961 host_libs='-lm'
1962 host_cflags_filter=echo
1963 host_ldflags_filter=echo
1964
1965 target_path='$(CURDIR)'
1966
1967 # since the object filename is not given with the -MM flag, the compiler
1968 # is only able to print the basename, and we must add the path ourselves
1969 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1970 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1971
1972 # find source path
1973 if test -f configure; then
1974     source_path=.
1975 else
1976     source_path=$(cd $(dirname "$0"); pwd)
1977     echo "$source_path" | grep -q '[[:blank:]]' &&
1978         die "Out of tree builds are impossible with whitespace in source path."
1979     test -e "$source_path/config.h" &&
1980         die "Out of tree builds are impossible with config.h in source dir."
1981 fi
1982
1983 for v in "$@"; do
1984     r=${v#*=}
1985     l=${v%"$r"}
1986     r=$(sh_quote "$r")
1987     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1988 done
1989
1990 find_things(){
1991     thing=$1
1992     pattern=$2
1993     file=$source_path/$3
1994     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1995 }
1996
1997 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1998 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1999 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2000 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2001 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2002 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2003 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2004 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2005 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2006 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2007 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2008
2009 ALL_COMPONENTS="
2010     $BSF_LIST
2011     $DECODER_LIST
2012     $DEMUXER_LIST
2013     $ENCODER_LIST
2014     $FILTER_LIST
2015     $HWACCEL_LIST
2016     $INDEV_LIST
2017     $MUXER_LIST
2018     $OUTDEV_LIST
2019     $PARSER_LIST
2020     $PROTOCOL_LIST
2021 "
2022
2023 find_tests(){
2024     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2025 }
2026
2027 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2028 LAVF_TESTS=$(find_tests lavf)
2029 LAVFI_TESTS=$(find_tests lavfi)
2030 SEEK_TESTS=$(find_tests seek seek_)
2031
2032 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2033
2034 for n in $COMPONENT_LIST; do
2035     v=$(toupper ${n%s})_LIST
2036     eval enable \$$v
2037     eval ${n}_if_any="\$$v"
2038 done
2039
2040 enable $ARCH_EXT_LIST $ALL_TESTS
2041
2042 die_unknown(){
2043     echo "Unknown option \"$1\"."
2044     echo "See $0 --help for available options."
2045     exit 1
2046 }
2047
2048 show_list() {
2049     suffix=_$1
2050     shift
2051     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2052     exit 0
2053 }
2054
2055 rand_list(){
2056     IFS=', '
2057     set -- $*
2058     unset IFS
2059     for thing; do
2060         comp=${thing%:*}
2061         prob=${thing#$comp}
2062         prob=${prob#:}
2063         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2064         echo "prob ${prob:-0.5}"
2065         printf '%s\n' $comp
2066     done
2067 }
2068
2069 do_random(){
2070     action=$1
2071     shift
2072     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2073     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2074 }
2075
2076 for opt do
2077     optval="${opt#*=}"
2078     case "$opt" in
2079     --extra-ldflags=*) add_ldflags $optval
2080     ;;
2081     --extra-libs=*) add_extralibs $optval
2082     ;;
2083     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2084     ;;
2085     --enable-debug=*) debuglevel="$optval"
2086     ;;
2087     --disable-everything)
2088     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2089     ;;
2090     --enable-random|--disable-random)
2091     action=${opt%%-random}
2092     do_random ${action#--} $COMPONENT_LIST
2093     ;;
2094     --enable-random=*|--disable-random=*)
2095     action=${opt%%-random=*}
2096     do_random ${action#--} $optval
2097     ;;
2098     --enable-*=*|--disable-*=*)
2099     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2100     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2101     eval list=\$$(toupper $thing)_LIST
2102     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2103     $action $(filter "$name" $list)
2104     ;;
2105     --enable-?*|--disable-?*)
2106     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2107     if is_in $option $COMPONENT_LIST; then
2108         test $action = disable && action=unset
2109         eval $action \$$(toupper ${option%s})_LIST
2110     elif is_in $option $CMDLINE_SELECT; then
2111         $action $option
2112     else
2113         die_unknown $opt
2114     fi
2115     ;;
2116     --list-*)
2117         NAME="${opt#--list-}"
2118         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2119         NAME=${NAME%s}
2120         eval show_list $NAME \$$(toupper $NAME)_LIST
2121     ;;
2122     --help|-h) show_help
2123     ;;
2124     *)
2125     optname="${opt%%=*}"
2126     optname="${optname#--}"
2127     optname=$(echo "$optname" | sed 's/-/_/g')
2128     if is_in $optname $CMDLINE_SET; then
2129         eval $optname='$optval'
2130     elif is_in $optname $CMDLINE_APPEND; then
2131         append $optname "$optval"
2132     else
2133          die_unknown $opt
2134     fi
2135     ;;
2136     esac
2137 done
2138
2139 disabled logging && logfile=/dev/null
2140
2141 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2142 set >> $logfile
2143
2144 test -n "$cross_prefix" && enable cross_compile
2145
2146 if enabled cross_compile; then
2147     test -n "$arch" && test -n "$target_os" ||
2148         die "Must specify target arch and OS when cross-compiling"
2149 fi
2150
2151 set_default arch target_os postproc_version
2152
2153 # Check if we should build alternative libpostproc version instead of current
2154 if   test "$postproc_version" = $ALT_PP_VER; then
2155   LIBPOSTPROC_VERSION=$ALT_PP_VER
2156   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2157   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2158   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2159 elif test "$postproc_version" != current; then
2160   die "Invalid argument to --postproc-version. See --help output."
2161 fi
2162
2163 ar_default="${cross_prefix}${ar_default}"
2164 cc_default="${cross_prefix}${cc_default}"
2165 cxx_default="${cross_prefix}${cxx_default}"
2166 nm_default="${cross_prefix}${nm_default}"
2167 pkg_config_default="${cross_prefix}${pkg_config_default}"
2168 ranlib="${cross_prefix}${ranlib}"
2169 strip_default="${cross_prefix}${strip_default}"
2170
2171 sysinclude_default="${sysroot}/usr/include"
2172
2173 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2174 enabled cross_compile || host_cc_default=$cc
2175 set_default host_cc
2176
2177 if ! $pkg_config --version >/dev/null 2>&1; then
2178     warn "$pkg_config not found, library detection may fail."
2179     pkg_config=false
2180 fi
2181
2182 exesuf() {
2183     case $1 in
2184         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2185     esac
2186 }
2187
2188 EXESUF=$(exesuf $target_os)
2189 HOSTEXESUF=$(exesuf $host_os)
2190
2191 # set temporary file name
2192 : ${TMPDIR:=$TEMPDIR}
2193 : ${TMPDIR:=$TMP}
2194 : ${TMPDIR:=/tmp}
2195
2196 if ! check_cmd mktemp -u XXXXXX; then
2197     # simple replacement for missing mktemp
2198     # NOT SAFE FOR GENERAL USE
2199     mktemp(){
2200         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2201     }
2202 fi
2203
2204 tmpfile(){
2205     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2206         (set -C; exec > $tmp) 2>/dev/null ||
2207         die "Unable to create temporary file in $TMPDIR."
2208     append TMPFILES $tmp
2209     eval $1=$tmp
2210 }
2211
2212 trap 'rm -f -- $TMPFILES' EXIT
2213
2214 tmpfile TMPASM .asm
2215 tmpfile TMPC   .c
2216 tmpfile TMPCPP .cpp
2217 tmpfile TMPE   $EXESUF
2218 tmpfile TMPH   .h
2219 tmpfile TMPO   .o
2220 tmpfile TMPS   .S
2221 tmpfile TMPSH  .sh
2222 tmpfile TMPV   .ver
2223
2224 unset -f mktemp
2225
2226 chmod +x $TMPE
2227
2228 # make sure we can execute files in $TMPDIR
2229 cat > $TMPSH 2>> $logfile <<EOF
2230 #! /bin/sh
2231 EOF
2232 chmod +x $TMPSH >> $logfile 2>&1
2233 if ! $TMPSH >> $logfile 2>&1; then
2234     cat <<EOF
2235 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2236 variable to another directory and make sure that it is not mounted noexec.
2237 EOF
2238     die "Sanity test failed."
2239 fi
2240
2241 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2242     cc_type=llvm_gcc
2243     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2244     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2245     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2246     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2247     cflags_speed='-O3'
2248     cflags_size='-Os'
2249 elif $cc -v 2>&1 | grep -qi ^gcc; then
2250     cc_type=gcc
2251     gcc_version=$($cc --version | head -n1)
2252     gcc_basever=$($cc -dumpversion)
2253     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2254     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2255     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2256     if ! $cc -dumpversion | grep -q '^2\.'; then
2257         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2258         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2259     fi
2260     cflags_speed='-O3'
2261     cflags_size='-Os'
2262 elif $cc --version 2>/dev/null | grep -q Intel; then
2263     cc_type=icc
2264     cc_ident=$($cc --version | head -n1)
2265     CC_DEPFLAGS='-MMD'
2266     AS_DEPFLAGS='-MMD'
2267     cflags_speed='-O3'
2268     cflags_size='-Os'
2269     cflags_noopt='-O1'
2270 elif $cc -v 2>&1 | grep -q xlc; then
2271     cc_type=xlc
2272     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2273     cflags_speed='-O5'
2274     cflags_size='-O5 -qcompact'
2275 elif $cc -V 2>/dev/null | grep -q Compaq; then
2276     cc_type=ccc
2277     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2278     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2279     debuglevel=3
2280     add_ldflags -Wl,-z,now # calls to libots crash without this
2281     cflags_speed='-fast'
2282     cflags_size='-O1'
2283 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2284     test -d "$sysroot" || die "No valid sysroot specified."
2285     cc_type=armcc
2286     cc_ident=$($cc --vsn | head -n1)
2287     armcc_conf="$PWD/armcc.conf"
2288     $cc --arm_linux_configure                 \
2289         --arm_linux_config_file="$armcc_conf" \
2290         --configure_sysroot="$sysroot"        \
2291         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2292         die "Error creating armcc configuration file."
2293     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2294     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2295     as_default="${cross_prefix}gcc"
2296     CC_DEPFLAGS='-MMD'
2297     AS_DEPFLAGS='-MMD'
2298     cflags_speed='-O3'
2299     cflags_size='-Os'
2300     asflags_filter="filter_out -W${armcc_opt}*"
2301 elif $cc -version 2>/dev/null | grep -q TMS470; then
2302     cc_type=tms470
2303     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2304     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2305     CC_O='-fr=$(@D)'
2306     as_default="${cross_prefix}gcc"
2307     ld_default="${cross_prefix}gcc"
2308     TMPO=$(basename $TMPC .c).o
2309     append TMPFILES $TMPO
2310     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2311     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2312     AS_DEPFLAGS='-MMD'
2313     cflags_speed='-O3 -mf=5'
2314     cflags_size='-O3 -mf=2'
2315     cflags_filter=tms470_flags
2316     tms470_flags(){
2317         for flag; do
2318             case $flag in
2319                 -march=*|-mcpu=*)
2320                     case "${flag#*=}" in
2321                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2322                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2323                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2324                         armv6*|arm11*)          echo -mv=6   ;;
2325                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2326                                                 echo -mv=5e  ;;
2327                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2328                     esac
2329                     ;;
2330                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2331                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2332                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2333                 -msoft-float)   echo --float_support=vfplib       ;;
2334                 -O[0-3]|-mf=*)  echo $flag                        ;;
2335                 -g)             echo -g -mn                       ;;
2336                 -pds=*)         echo $flag                        ;;
2337             esac
2338         done
2339     }
2340 elif $cc -v 2>&1 | grep -q clang; then
2341     cc_type=clang
2342     cc_ident=$($cc --version | head -n1)
2343     CC_DEPFLAGS='-MMD'
2344     AS_DEPFLAGS='-MMD'
2345     cflags_speed='-O3'
2346     cflags_size='-Os'
2347 elif $cc -V 2>&1 | grep -q Sun; then
2348     cc_type=suncc
2349     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2350     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2351     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2352     add_ldflags -xc99
2353     cflags_speed='-O5'
2354     cflags_size='-O5 -xspace'
2355     cflags_filter=suncc_flags
2356     suncc_flags(){
2357         for flag; do
2358             case $flag in
2359                 -march=*|-mcpu=*)
2360                     case "${flag#*=}" in
2361                         native)                   echo -xtarget=native       ;;
2362                         v9|niagara)               echo -xarch=sparc          ;;
2363                         ultrasparc)               echo -xarch=sparcvis       ;;
2364                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2365                         i586|pentium)             echo -xchip=pentium        ;;
2366                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2367                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2368                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2369                         pentium4*)          echo -xtarget=pentium4           ;;
2370                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2371                         *-sse3)             echo -xarch=sse3                 ;;
2372                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2373                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2374                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2375                         k8|opteron|athlon64|athlon-fx)
2376                                                   echo -xarch=sse2a          ;;
2377                         athlon*)                  echo -xarch=pentium_proa   ;;
2378                     esac
2379                     ;;
2380                 -std=c99)             echo -xc99              ;;
2381                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2382                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2383                 -W*,*)                echo $flag              ;;
2384                 -f*-*|-W*)                                    ;;
2385                 *)                    echo $flag              ;;
2386             esac
2387         done
2388     }
2389 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2390     cc_type=pathscale
2391     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2392     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2393     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2394     cflags_speed='-O2'
2395     cflags_size='-Os'
2396     cflags_filter='filter_out -Wdisabled-optimization'
2397 elif $cc -v 2>&1 | grep -q Open64; then
2398     cc_type=open64
2399     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2400     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2401     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2402     cflags_speed='-O2'
2403     cflags_size='-Os'
2404     cflags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2405 elif $cc -V 2>&1 | grep -q Portland; then
2406     cc_type=pgi
2407     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2408     opt_common='-alias=ansi -Mlre -Mpre'
2409     cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2410     cflags_size="-O2 -Munroll=c:1 $opt_common"
2411     cflags_noopt="-O1"
2412     cflags_filter=pgi_flags
2413     pgi_flags(){
2414         for flag; do
2415             case $flag in
2416                 -fomit-frame-pointer) echo -Mnoframe ;;
2417                 -g)                   echo -gopt ;;
2418                 *)                    echo $flag ;;
2419             esac
2420         done
2421     }
2422 fi
2423
2424 test -n "$cc_type" && enable $cc_type ||
2425     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2426
2427 : ${as_default:=$cc}
2428 : ${dep_cc_default:=$cc}
2429 : ${ld_default:=$cc}
2430 set_default ar as dep_cc ld
2431
2432 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2433 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2434 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2435
2436 add_cflags $extra_cflags
2437 add_cxxflags $extra_cxxflags
2438 add_asflags $extra_cflags
2439
2440 if test -n "$sysroot"; then
2441     case "$cc_type" in
2442         gcc|llvm_gcc|clang)
2443             add_cppflags --sysroot="$sysroot"
2444             add_ldflags --sysroot="$sysroot"
2445         ;;
2446         tms470)
2447             add_cppflags -I"$sysinclude"
2448             add_ldflags  --sysroot="$sysroot"
2449         ;;
2450     esac
2451 fi
2452
2453 if test "$cpu" = host; then
2454     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2455
2456     case "$cc_type" in
2457         gcc|llvm_gcc)
2458             check_native(){
2459                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2460                 sed -n "/cc1.*$1=/{
2461                             s/.*$1=\\([^ ]*\\).*/\\1/
2462                             p
2463                             q
2464                         }" $TMPE
2465             }
2466             cpu=$(check_native -march || check_native -mcpu)
2467         ;;
2468     esac
2469
2470     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2471 fi
2472
2473 # Deal with common $arch aliases
2474 case "$arch" in
2475     arm*|iPad*)
2476         arch="arm"
2477     ;;
2478     mips|mipsel|IP*)
2479         arch="mips"
2480     ;;
2481     mips64*)
2482         arch="mips"
2483         subarch="mips64"
2484     ;;
2485     parisc|hppa)
2486         arch="parisc"
2487     ;;
2488     parisc64|hppa64)
2489         arch="parisc"
2490         subarch="parisc64"
2491     ;;
2492     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2493         arch="ppc"
2494     ;;
2495     s390|s390x)
2496         arch="s390"
2497     ;;
2498     sh4|sh)
2499         arch="sh4"
2500     ;;
2501     sun4u|sparc64)
2502         arch="sparc"
2503         subarch="sparc64"
2504     ;;
2505     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2506         arch="x86"
2507     ;;
2508 esac
2509
2510 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2511 enable $arch
2512
2513 # Add processor-specific flags
2514 if test "$cpu" = generic; then
2515     : do nothing
2516 elif enabled ppc; then
2517
2518     case $(tolower $cpu) in
2519         601|ppc601|powerpc601)
2520             cpuflags="-mcpu=601"
2521             disable altivec
2522         ;;
2523         603*|ppc603*|powerpc603*)
2524             cpuflags="-mcpu=603"
2525             disable altivec
2526         ;;
2527         604*|ppc604*|powerpc604*)
2528             cpuflags="-mcpu=604"
2529             disable altivec
2530         ;;
2531         g3|75*|ppc75*|powerpc75*)
2532             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2533             disable altivec
2534         ;;
2535         g4|745*|ppc745*|powerpc745*)
2536             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2537         ;;
2538         74*|ppc74*|powerpc74*)
2539             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2540         ;;
2541         g5|970|ppc970|powerpc970)
2542             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2543         ;;
2544         power[3-7]*)
2545             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2546         ;;
2547         cell)
2548             cpuflags="-mcpu=cell"
2549             enable ldbrx
2550         ;;
2551         e500v2)
2552             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2553             disable altivec
2554         ;;
2555         e500)
2556             cpuflags="-mcpu=8540 -mhard-float"
2557             disable altivec
2558         ;;
2559     esac
2560
2561 elif enabled x86; then
2562
2563     case $cpu in
2564         i[345]86|pentium)
2565             cpuflags="-march=$cpu"
2566             disable mmx
2567         ;;
2568         # targets that do NOT support conditional mov (cmov)
2569         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2570             cpuflags="-march=$cpu"
2571             disable cmov
2572         ;;
2573         # targets that do support conditional mov (cmov)
2574         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2575             cpuflags="-march=$cpu"
2576             enable cmov
2577             enable fast_cmov
2578         ;;
2579         # targets that do support conditional mov but on which it's slow
2580         pentium4|pentium4m|prescott|nocona)
2581             cpuflags="-march=$cpu"
2582             enable cmov
2583             disable fast_cmov
2584         ;;
2585     esac
2586
2587 elif enabled sparc; then
2588
2589     case $cpu in
2590         niagara)
2591             cpuflags="-mcpu=$cpu"
2592             disable vis
2593         ;;
2594         sparc64)
2595             cpuflags="-mcpu=v9"
2596         ;;
2597     esac
2598
2599 elif enabled arm; then
2600
2601     case $cpu in
2602         armv*)
2603             cpuflags="-march=$cpu"
2604             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2605         ;;
2606         *)
2607             cpuflags="-mcpu=$cpu"
2608             case $cpu in
2609                 cortex-a*)                               subarch=armv7a  ;;
2610                 cortex-r*)                               subarch=armv7r  ;;
2611                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2612                 arm11*)                                  subarch=armv6   ;;
2613                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2614                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2615             esac
2616         ;;
2617     esac
2618
2619 elif enabled alpha; then
2620
2621     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2622
2623 elif enabled bfin; then
2624
2625     cpuflags="-mcpu=$cpu"
2626
2627 elif enabled mips; then
2628
2629     cpuflags="-march=$cpu"
2630
2631     case $cpu in
2632         24kc)
2633             disable mipsfpu
2634             disable mipsdspr1
2635             disable mipsdspr2
2636         ;;
2637         24kf*)
2638             disable mipsdspr1
2639             disable mipsdspr2
2640         ;;
2641         24kec|34kc|1004kc)
2642             disable mipsfpu
2643             disable mipsdspr2
2644         ;;
2645         24kef*|34kf*|1004kf*)
2646             disable mipsdspr2
2647         ;;
2648         74kc)
2649             disable mipsfpu
2650         ;;
2651     esac
2652
2653 elif enabled avr32; then
2654
2655     case $cpu in
2656         ap7[02]0[0-2])
2657             subarch="avr32_ap"
2658             cpuflags="-mpart=$cpu"
2659         ;;
2660         ap)
2661             subarch="avr32_ap"
2662             cpuflags="-march=$cpu"
2663         ;;
2664         uc3[ab]*)
2665             subarch="avr32_uc"
2666             cpuflags="-mcpu=$cpu"
2667         ;;
2668         uc)
2669             subarch="avr32_uc"
2670             cpuflags="-march=$cpu"
2671         ;;
2672     esac
2673
2674 fi
2675
2676 add_cflags $cpuflags
2677 add_asflags $cpuflags
2678
2679 # compiler sanity check
2680 check_exec <<EOF
2681 int main(void){ return 0; }
2682 EOF
2683 if test "$?" != 0; then
2684     echo "$cc is unable to create an executable file."
2685     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2686         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2687         echo "Only do this if you know what cross compiling means."
2688     fi
2689     die "C compiler test failed."
2690 fi
2691
2692 add_cppflags -D_ISOC99_SOURCE
2693 add_cxxflags -D__STDC_CONSTANT_MACROS
2694 check_cflags -std=c99
2695 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2696 #include <stdlib.h>
2697 EOF
2698 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2699 #include <stdlib.h>
2700 EOF
2701
2702 check_host_cflags -std=c99
2703 check_host_cflags -Wall
2704
2705 case "$arch" in
2706     alpha|ia64|mips|parisc|sparc)
2707         spic=$shared
2708     ;;
2709     x86)
2710         subarch="x86_32"
2711         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2712         if test "$subarch" = "x86_64"; then
2713             spic=$shared
2714         fi
2715     ;;
2716     ppc)
2717         check_cc <<EOF && subarch="ppc64"
2718         int test[(int)sizeof(char*) - 7];
2719 EOF
2720     ;;
2721 esac
2722
2723 enable $subarch
2724 enabled spic && enable pic
2725
2726 # OS specific
2727 case $target_os in
2728     haiku)
2729         prefix_default="/boot/common"
2730         network_extralibs="-lnetwork"
2731         host_libs=
2732         ;;
2733     sunos)
2734         FFSERVERLDFLAGS=""
2735         SHFLAGS='-shared -Wl,-h,$$(@F)'
2736         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2737         network_extralibs="-lsocket -lnsl"
2738         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2739         # When using suncc to build, the Solaris linker will mark
2740         # an executable with each instruction set encountered by
2741         # the Solaris assembler.  As our libraries contain their own
2742         # guards for processor-specific code, instead suppress
2743         # generation of the HWCAPS ELF section on Solaris x86 only.
2744         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2745         nm_opts='-P -g'
2746         ;;
2747     netbsd)
2748         disable symver
2749         oss_indev_extralibs="-lossaudio"
2750         oss_outdev_extralibs="-lossaudio"
2751         ;;
2752     openbsd|bitrig)
2753         # On OpenBSD 4.5. the compiler does not use PIC unless
2754         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2755         # however the generated executable will not do anything
2756         # (simply quits with exit-code 1, no crash, no output).
2757         # Thus explicitly enable PIC here.
2758         enable pic
2759         disable symver
2760         SHFLAGS='-shared'
2761         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2762         oss_indev_extralibs="-lossaudio"
2763         oss_outdev_extralibs="-lossaudio"
2764         ;;
2765     dragonfly)
2766         disable symver
2767         ;;
2768     freebsd)
2769         ;;
2770     bsd/os)
2771         add_extralibs -lpoll -lgnugetopt
2772         strip="strip -d"
2773         ;;
2774     darwin)
2775         gas="gas-preprocessor.pl $cc"
2776         enabled ppc && add_asflags -force_cpusubtype_ALL
2777         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2778         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2779         strip="${strip} -x"
2780         add_ldflags -Wl,-dynamic,-search_paths_first
2781         SLIBSUF=".dylib"
2782         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2783         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2784         FFSERVERLDFLAGS=-Wl,-bind_at_load
2785         objformat="macho"
2786         enabled x86_64 && objformat="macho64"
2787         enabled_any pic shared ||
2788             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2789         ;;
2790     mingw32*)
2791         if test $target_os = "mingw32ce"; then
2792             disable network
2793         else
2794             target_os=mingw32
2795         fi
2796         LIBTARGET=i386
2797         if enabled x86_64; then
2798             LIBTARGET=x64
2799         elif enabled arm; then
2800             LIBTARGET=arm-wince
2801         fi
2802         shlibdir_default="$bindir_default"
2803         SLIBPREF=""
2804         SLIBSUF=".dll"
2805         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2806         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2807         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2808         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2809         SLIB_INSTALL_LINKS=
2810         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2811         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2812         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'
2813         objformat="win32"
2814         enable dos_paths
2815         check_cflags -fno-common
2816         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2817                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2818                 die "ERROR: MinGW runtime version must be >= 3.15."
2819         add_cppflags -U__STRICT_ANSI__
2820         ;;
2821     cygwin*)
2822         target_os=cygwin
2823         shlibdir_default="$bindir_default"
2824         SLIBPREF="cyg"
2825         SLIBSUF=".dll"
2826         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2827         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2828         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2829         objformat="win32"
2830         enable dos_paths
2831         check_cflags -fno-common
2832         add_cppflags -U__STRICT_ANSI__
2833         ;;
2834     *-dos|freedos|opendos)
2835         network_extralibs="-lsocket"
2836         objformat="coff"
2837         enable dos_paths
2838         add_cppflags -U__STRICT_ANSI__
2839         ;;
2840     linux)
2841         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2842         enable dv1394
2843         ;;
2844     irix*)
2845         target_os=irix
2846         ranlib="echo ignoring ranlib"
2847         ;;
2848     os/2*)
2849         strip="lxlite -CS"
2850         ln_s="cp -f"
2851         objformat="aout"
2852         add_cppflags -D_GNU_SOURCE
2853         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2854         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2855         FFSERVERLDFLAGS=""
2856         LIBSUF="_s.a"
2857         SLIBPREF=""
2858         SLIBSUF=".dll"
2859         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2860         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2861         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2862           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2863           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2864           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2865           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2866           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2867         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2868           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2869         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2870         enable dos_paths
2871         enable_weak os2threads
2872         ;;
2873     gnu/kfreebsd)
2874         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2875         ;;
2876     gnu)
2877         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2878         ;;
2879     qnx)
2880         add_cppflags -D_QNX_SOURCE
2881         network_extralibs="-lsocket"
2882         ;;
2883     symbian)
2884         SLIBSUF=".dll"
2885         enable dos_paths
2886         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2887         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2888         add_ldflags -Wl,--target1-abs,--no-undefined \
2889                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2890                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2891         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2892                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2893                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2894         ;;
2895     none)
2896         ;;
2897     *)
2898         die "Unknown OS '$target_os'."
2899         ;;
2900 esac
2901
2902 esc(){
2903     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2904 }
2905
2906 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2907
2908 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2909
2910 set_default $PATHS_LIST
2911
2912 # we need to build at least one lib type
2913 if ! enabled_any static shared; then
2914     cat <<EOF
2915 At least one library type must be built.
2916 Specify --enable-static to build the static libraries or --enable-shared to
2917 build the shared libraries as well. To only build the shared libraries specify
2918 --disable-static in addition to --enable-shared.
2919 EOF
2920     exit 1;
2921 fi
2922
2923 die_license_disabled() {
2924     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2925 }
2926
2927 die_license_disabled_gpl() {
2928     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2929 }
2930
2931 die_license_disabled gpl libcdio
2932 die_license_disabled gpl libutvideo
2933 die_license_disabled gpl libx264
2934 die_license_disabled gpl libxavs
2935 die_license_disabled gpl libxvid
2936 die_license_disabled gpl x11grab
2937
2938 die_license_disabled nonfree libaacplus
2939 die_license_disabled nonfree libfaac
2940 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
2941 enabled gpl && die_license_disabled_gpl nonfree openssl
2942
2943 die_license_disabled version3 libopencore_amrnb
2944 die_license_disabled version3 libopencore_amrwb
2945 die_license_disabled version3 libvo_aacenc
2946 die_license_disabled version3 libvo_amrwbenc
2947
2948 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2949
2950 disabled optimizations || check_cflags -fomit-frame-pointer
2951
2952 enable_pic() {
2953     enable pic
2954     add_cppflags -DPIC
2955     add_cflags   -fPIC
2956     add_asflags  -fPIC
2957 }
2958
2959 enabled pic && enable_pic
2960
2961 check_cc <<EOF || die "Symbol mangling check failed."
2962 int ff_extern;
2963 EOF
2964 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2965 extern_prefix=${sym%%ff_extern*}
2966
2967 check_cc <<EOF && enable inline_asm
2968 void foo(void) { __asm__ volatile ("" ::); }
2969 EOF
2970
2971 _restrict=
2972 for restrict_keyword in restrict __restrict__ __restrict; do
2973     check_cc <<EOF && _restrict=$restrict_keyword && break
2974 void foo(char * $restrict_keyword p);
2975 EOF
2976 done
2977
2978 check_cc <<EOF && enable attribute_packed
2979 struct { int x; } __attribute__((packed)) x;
2980 EOF
2981
2982 check_cc <<EOF && enable attribute_may_alias
2983 union { int x; } __attribute__((may_alias)) x;
2984 EOF
2985
2986 check_cc <<EOF || die "endian test failed"
2987 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2988 EOF
2989 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2990
2991 if enabled alpha; then
2992
2993     check_cflags -mieee
2994
2995 elif enabled arm; then
2996
2997     enabled thumb && check_cflags -mthumb || check_cflags -marm
2998     nogas=die
2999
3000     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3001         enable vfp_args
3002     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3003         case "${cross_prefix:-$cc}" in
3004             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3005             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3006 __asm__ (".eabi_attribute 28, 1");
3007 int main(void) { return 0; }
3008 EOF
3009         esac
3010         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3011     fi
3012
3013     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
3014     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
3015     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
3016     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
3017     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
3018     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
3019
3020     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3021
3022     enabled_all armv6t2 shared !pic && enable_pic
3023
3024 elif enabled mips; then
3025
3026     check_asm loongson '"dmult.g $1, $2, $3"'
3027     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
3028     enabled mips32r2  && add_cflags "-mips32r2" &&
3029      check_asm mips32r2  '"rotr $t0, $t1, 1"'
3030     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3031      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3032     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3033      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3034     enabled mipsfpu   && add_cflags "-mhard-float" &&
3035      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3036
3037
3038 elif enabled ppc; then
3039
3040     enable local_aligned_8 local_aligned_16
3041
3042     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3043     check_asm ibm_asm   '"add 0, 0, 0"'
3044     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3045     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3046
3047     # AltiVec flags: The FSF version of GCC differs from the Apple version
3048     if enabled altivec; then
3049         nogas=warn
3050         check_cflags -maltivec -mabi=altivec &&
3051         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3052         check_cflags -faltivec
3053
3054         # check if our compiler supports Motorola AltiVec C API
3055         check_cc <<EOF || disable altivec
3056 $inc_altivec_h
3057 int main(void) {
3058     vector signed int v1, v2, v3;
3059     v1 = vec_add(v2,v3);
3060     return 0;
3061 }
3062 EOF
3063
3064         # check if our compiler supports braces for vector declarations
3065         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3066 $inc_altivec_h
3067 int main (void) { (vector int) {1}; return 0; }
3068 EOF
3069     fi
3070
3071 elif enabled sparc; then
3072
3073     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3074         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3075
3076 elif enabled x86; then
3077
3078     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3079     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3080     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3081     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3082
3083     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3084
3085     enable local_aligned_8 local_aligned_16
3086
3087     # check whether EBP is available on x86
3088     # As 'i' is stored on the stack, this program will crash
3089     # if the base pointer is used to access it because the
3090     # base pointer is cleared in the inline assembly code.
3091     check_exec_crash <<EOF && enable ebp_available
3092     volatile int i=0;
3093     __asm__ volatile (
3094         "xorl %%ebp, %%ebp"
3095     ::: "%ebp");
3096     return i;
3097 EOF
3098
3099     # check whether EBX is available on x86
3100     check_asm ebx_available '""::"b"(0)' &&
3101         check_asm ebx_available '"":::"%ebx"'
3102
3103     # check whether xmm clobbers are supported
3104     check_asm xmm_clobbers '"":::"%xmm0"'
3105
3106     # check whether binutils is new enough to compile SSSE3/MMX2
3107     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3108     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3109
3110     if ! disabled_any asm mmx yasm; then
3111         if check_cmd $yasmexe --version; then
3112             enabled x86_64 && yasm_extra="-m amd64"
3113             yasm_debug="-g dwarf2"
3114         elif check_cmd nasm -v; then
3115             yasmexe=nasm
3116             yasm_debug="-g -F dwarf"
3117             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3118         fi
3119
3120         YASMFLAGS="-f $objformat $yasm_extra"
3121         enabled pic               && append YASMFLAGS "-DPIC"
3122         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3123         case "$objformat" in
3124             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3125         esac
3126
3127         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3128             die "yasm not found, use --disable-yasm for a crippled build"
3129         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3130     fi
3131
3132     case "$cpu" in
3133         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3134             disable fast_clz
3135         ;;
3136     esac
3137
3138 fi
3139
3140 if enabled asm; then
3141     as=${gas:=$as}
3142     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3143         $nogas "GNU assembler not found, install gas-preprocessor"
3144 fi
3145
3146 check_ldflags -Wl,--as-needed
3147
3148 if check_func dlopen; then
3149     ldl=
3150 elif check_func dlopen -ldl; then
3151     ldl=-ldl
3152 fi
3153
3154 if enabled network; then
3155     check_type "sys/types.h sys/socket.h" socklen_t
3156     check_type netdb.h "struct addrinfo"
3157     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3158     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3159     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3160     check_type netinet/in.h "struct sockaddr_in6"
3161     check_type poll.h "struct pollfd"
3162     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3163     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3164     check_header netinet/sctp.h
3165     check_func getaddrinfo $network_extralibs
3166     # Prefer arpa/inet.h over winsock2
3167     if check_header arpa/inet.h ; then
3168         check_func closesocket
3169     elif check_header winsock2.h ; then
3170         check_func_headers winsock2.h closesocket -lws2 &&
3171             network_extralibs="-lws2" ||
3172         { check_func_headers winsock2.h closesocket -lws2_32 &&
3173             network_extralibs="-lws2_32"; }
3174         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3175         check_type ws2tcpip.h socklen_t
3176         check_type ws2tcpip.h "struct addrinfo"
3177         check_type ws2tcpip.h "struct group_source_req"
3178         check_type ws2tcpip.h "struct ip_mreq_source"
3179         check_type ws2tcpip.h "struct ipv6_mreq"
3180         check_type winsock2.h "struct pollfd"
3181         check_type ws2tcpip.h "struct sockaddr_in6"
3182         check_type ws2tcpip.h "struct sockaddr_storage"
3183         check_struct winsock2.h "struct sockaddr" sa_len
3184     else
3185         disable network
3186     fi
3187 fi
3188
3189 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3190 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3191
3192 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3193 check_func  fcntl
3194 check_func  fork
3195 check_func  gethrtime
3196 check_func  getopt
3197 check_func  getrusage
3198 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3199 check_func  gettimeofday
3200 check_func  inet_aton $network_extralibs
3201 check_func  isatty
3202 check_func  localtime_r
3203 check_func  ${malloc_prefix}memalign            && enable memalign
3204 check_func  mkstemp
3205 check_func  mmap
3206 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3207 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3208 check_func  setrlimit
3209 check_func  strerror_r
3210 check_func  strptime
3211 check_func  sched_getaffinity
3212 check_func  sysconf
3213 check_func  sysctl
3214 check_func  usleep
3215 check_func_headers conio.h kbhit
3216 check_func_headers windows.h PeekNamedPipe
3217 check_func_headers io.h setmode
3218 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3219 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3220 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3221 check_func_headers windows.h GetProcessAffinityMask
3222 check_func_headers windows.h GetProcessTimes
3223 check_func_headers windows.h GetSystemTimeAsFileTime
3224 check_func_headers windows.h MapViewOfFile
3225 check_func_headers windows.h Sleep
3226 check_func_headers windows.h VirtualAlloc
3227 check_func_headers glob.h glob
3228
3229 check_header dlfcn.h
3230 check_header dxva.h
3231 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3232 check_header libcrystalhd/libcrystalhd_if.h
3233 check_header malloc.h
3234 check_header poll.h
3235 check_header sys/mman.h
3236 check_header sys/param.h
3237 check_header sys/resource.h
3238 check_header sys/select.h
3239 check_header sys/time.h
3240 check_header termios.h
3241 check_header unistd.h
3242 check_header vdpau/vdpau.h
3243 check_header vdpau/vdpau_x11.h
3244 check_header windows.h
3245 check_header X11/extensions/XvMClib.h
3246 check_header asm/types.h
3247
3248 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3249 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3250
3251 # check for VDA header
3252 if ! disabled vda; then
3253     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3254         enable vda
3255         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3256     fi
3257 fi
3258
3259 if ! disabled w32threads && ! enabled pthreads; then
3260     check_func _beginthreadex && enable w32threads
3261 fi
3262
3263 # check for some common methods of building with pthread support
3264 # do this before the optional library checks as some of them require pthreads
3265 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3266     enable pthreads
3267     if check_func pthread_create; then
3268         :
3269     elif check_func pthread_create -pthread; then
3270         add_cflags -pthread
3271         add_extralibs -pthread
3272     elif check_func pthread_create -pthreads; then
3273         add_cflags -pthreads
3274         add_extralibs -pthreads
3275     elif check_func pthread_create -lpthreadGC2; then
3276         add_extralibs -lpthreadGC2
3277     elif ! check_lib pthread.h pthread_create -lpthread; then
3278         disable pthreads
3279     fi
3280 fi
3281
3282 for thread in $THREADS_LIST; do
3283     if enabled $thread; then
3284         test -n "$thread_type" &&
3285             die "ERROR: Only one thread type must be selected." ||
3286             thread_type="$thread"
3287     fi
3288 done
3289
3290 if enabled pthreads; then
3291   check_func pthread_cancel
3292 fi
3293
3294 check_lib math.h sin -lm && LIBM="-lm"
3295 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3296 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3297
3298 check_mathfunc cbrtf
3299 check_mathfunc exp2
3300 check_mathfunc exp2f
3301 check_mathfunc isinf
3302 check_mathfunc isnan
3303 check_mathfunc llrint
3304 check_mathfunc llrintf
3305 check_mathfunc log2
3306 check_mathfunc log2f
3307 check_mathfunc lrint
3308 check_mathfunc lrintf
3309 check_mathfunc rint
3310 check_mathfunc round
3311 check_mathfunc roundf
3312 check_mathfunc trunc
3313 check_mathfunc truncf
3314
3315 # these are off by default, so fail if requested and not available
3316 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3317 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3318 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3319 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3320 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3321 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3322 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3323 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3324 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3325                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3326                         die "ERROR: libcelt version must be >= 0.11.0."; }
3327 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3328 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3329 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3330 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3331 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3332 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3333 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3334 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3335 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3336 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3337 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3338 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3339 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3340 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3341 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3342 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3343 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3344 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3345 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3346     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3347     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3348 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3349 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3350 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3351 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3352 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3353 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3354 enabled libvpx     && {
3355     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3356                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3357     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3358                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3359 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3360                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3361                         die "ERROR: libx264 version must be >= 0.118."; }
3362 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3363 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3364 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3365                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3366                         die "ERROR: openal not found"; } &&
3367                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3368                         die "ERROR: openal version must be 1.1 or compatible"; }
3369 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3370                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3371                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3372                         die "ERROR: openssl not found"; }
3373
3374 # libdc1394 check
3375 if enabled libdc1394; then
3376     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3377         enable libdc1394_2; } ||
3378     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3379         enable libdc1394_1; } ||
3380     die "ERROR: No version of libdc1394 found "
3381 fi
3382
3383 SDL_CONFIG="${cross_prefix}sdl-config"
3384 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3385     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3386     enable sdl &&
3387     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3388 else
3389   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3390     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3391     sdl_libs=$("${SDL_CONFIG}" --libs)
3392     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3393     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3394     enable sdl &&
3395     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3396   fi
3397 fi
3398 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3399
3400 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3401 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3402 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3403
3404 check_header linux/fb.h
3405 check_header linux/videodev.h
3406 check_header linux/videodev2.h
3407 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3408
3409 check_header sys/videoio.h
3410
3411 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3412 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3413 # w32api 3.12 had it defined wrong
3414 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3415
3416 check_type "dshow.h" IBaseFilter
3417
3418 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3419 { check_header dev/bktr/ioctl_meteor.h &&
3420   check_header dev/bktr/ioctl_bt848.h; } ||
3421 { check_header machine/ioctl_meteor.h &&
3422   check_header machine/ioctl_bt848.h; } ||
3423 { check_header dev/video/meteor/ioctl_meteor.h &&
3424   check_header dev/video/bktr/ioctl_bt848.h; } ||
3425 check_header dev/ic/bt8xx.h
3426
3427 check_header sndio.h
3428 if check_struct sys/soundcard.h audio_buf_info bytes; then
3429     enable_safe sys/soundcard.h
3430 else
3431     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3432     #include <sys/soundcard.h>
3433     audio_buf_info abc;
3434 EOF
3435 fi
3436 check_header soundcard.h
3437
3438 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3439
3440 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3441     check_func jack_port_get_latency_range -ljack
3442
3443 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3444
3445 enabled libcdio &&
3446     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3447
3448 enabled x11grab                                           &&
3449 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3450 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3451 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3452
3453 if ! disabled vaapi; then
3454     check_lib va/va.h vaInitialize -lva && {
3455         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3456         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3457     } || disable vaapi
3458 fi
3459
3460 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3461 check_cpp_condition \
3462     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3463     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3464       disable vdpau; }
3465 fi
3466
3467 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3468 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3469 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"
3470
3471 # add some useful compiler flags if supported
3472 check_cflags -Wdeclaration-after-statement
3473 check_cflags -Wall
3474 check_cflags -Wno-parentheses
3475 check_cflags -Wno-switch
3476 check_cflags -Wno-format-zero-length
3477 check_cflags -Wdisabled-optimization
3478 check_cflags -Wpointer-arith
3479 check_cflags -Wredundant-decls
3480 check_cflags -Wno-pointer-sign
3481 check_cflags -Wwrite-strings
3482 check_cflags -Wtype-limits
3483 check_cflags -Wundef
3484 check_cflags -Wmissing-prototypes
3485 check_cflags -Wno-pointer-to-int-cast
3486 check_cflags -Wstrict-prototypes
3487 enabled extra_warnings && check_cflags -Winline
3488
3489 # add some linker flags
3490 check_ldflags -Wl,--warn-common
3491 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3492 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3493
3494 enabled xmm_clobber_test &&
3495     check_ldflags -Wl,--wrap,avcodec_open2              \
3496                   -Wl,--wrap,avcodec_decode_audio4      \
3497                   -Wl,--wrap,avcodec_decode_video2      \
3498                   -Wl,--wrap,avcodec_decode_subtitle2   \
3499                   -Wl,--wrap,avcodec_encode_audio2      \
3500                   -Wl,--wrap,avcodec_encode_video       \
3501                   -Wl,--wrap,avcodec_encode_subtitle    \
3502                   -Wl,--wrap,sws_scale ||
3503     disable xmm_clobber_test
3504
3505 echo "X{};" > $TMPV
3506 if test_ldflags -Wl,--version-script,$TMPV; then
3507     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3508     check_cc <<EOF && enable symver_asm_label
3509 void ff_foo(void) __asm__ ("av_foo@VERSION");
3510 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3511 EOF
3512     check_cc <<EOF && enable symver_gnu_asm
3513 __asm__(".symver ff_foo,av_foo@VERSION");
3514 void ff_foo(void) {}
3515 EOF
3516 fi
3517
3518 if [ -n "$optflags" ]; then
3519     add_cflags $optflags
3520 elif enabled small; then
3521     add_cflags $cflags_size
3522 elif enabled optimizations; then
3523     add_cflags $cflags_speed
3524 else
3525     add_cflags $cflags_noopt
3526 fi
3527 check_cflags -fno-math-errno
3528 check_cflags -fno-signed-zeros
3529 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3530 int x;
3531 EOF
3532
3533
3534 if enabled icc; then
3535     # Just warnings, no remarks
3536     check_cflags -w1
3537     # -wd: Disable following warnings
3538     # 144, 167, 556: -Wno-pointer-sign
3539     # 1292: attribute "foo" ignored
3540     # 1419: external declaration in primary source file
3541     # 10006: ignoring unknown option -fno-signed-zeros
3542     # 10148: ignoring unknown option -Wno-parentheses
3543     # 10156: ignoring option '-W'; no argument required
3544     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3545     # 11030: Warning unknown option --as-needed
3546     # 10156: ignoring option '-export'; no argument required
3547     check_ldflags -wd10156,11030
3548     # Allow to compile with optimizations
3549     check_ldflags -march=$cpu
3550     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3551     enable ebp_available
3552     if enabled x86_32; then
3553         icc_version=$($cc -dumpversion)
3554         test ${icc_version%%.*} -ge 11 &&
3555             check_cflags -falign-stack=maintain-16-byte ||
3556             disable aligned_stack
3557     fi
3558 elif enabled ccc; then
3559     # disable some annoying warnings
3560     add_cflags -msg_disable cvtu32to64
3561     add_cflags -msg_disable embedcomment
3562     add_cflags -msg_disable needconstext
3563     add_cflags -msg_disable nomainieee
3564     add_cflags -msg_disable ptrmismatch1
3565     add_cflags -msg_disable unreachcode
3566 elif enabled gcc; then
3567     check_cflags -fno-tree-vectorize
3568     check_cflags -Werror=implicit-function-declaration
3569     check_cflags -Werror=missing-prototypes
3570 elif enabled llvm_gcc; then
3571     check_cflags -mllvm -stack-alignment=16
3572 elif enabled clang; then
3573     check_cflags -mllvm -stack-alignment=16
3574     check_cflags -Qunused-arguments
3575 elif enabled armcc; then
3576     # 2523: use of inline assembler is deprecated
3577     add_cflags -W${armcc_opt},--diag_suppress=2523
3578     add_cflags -W${armcc_opt},--diag_suppress=1207
3579     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3580     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3581     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3582     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3583 elif enabled tms470; then
3584     add_cflags -pds=824 -pds=837
3585 elif enabled pathscale; then
3586     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3587 fi
3588
3589 enabled_any $THREADS_LIST      && enable threads
3590
3591 check_deps $CONFIG_LIST       \
3592            $CONFIG_EXTRA      \
3593            $HAVE_LIST         \
3594            $ALL_COMPONENTS    \
3595            $ALL_TESTS         \
3596
3597 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3598
3599 if test $target_os = "haiku"; then
3600     disable memalign
3601     disable posix_memalign
3602 fi
3603
3604 ! enabled_any memalign posix_memalign aligned_malloc &&
3605     enabled_any $need_memalign && enable memalign_hack
3606
3607 # add_dep lib dep
3608 # -> enable ${lib}_deps_${dep}
3609 # -> add $dep to ${lib}_deps only once
3610 add_dep() {
3611     lib=$1
3612     dep=$2
3613     enabled "${lib}_deps_${dep}" && return 0
3614     enable  "${lib}_deps_${dep}"
3615     prepend "${lib}_deps" $dep
3616 }
3617
3618 # merge deps lib components
3619 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3620 merge_deps() {
3621     lib=$1
3622     shift
3623     for comp in $*; do
3624         enabled $comp || continue
3625         eval "dep=\"\$${comp}_deps\""
3626         for d in $dep; do
3627             add_dep $lib $d
3628         done
3629     done
3630 }
3631
3632 merge_deps libavfilter $FILTER_LIST
3633
3634 echo "install prefix            $prefix"
3635 echo "source path               $source_path"
3636 echo "C compiler                $cc"
3637 echo "ARCH                      $arch ($cpu)"
3638 if test "$build_suffix" != ""; then
3639     echo "build suffix              $build_suffix"
3640 fi
3641 if test "$progs_suffix" != ""; then
3642     echo "progs suffix              $progs_suffix"
3643 fi
3644 if test "$extra_version" != ""; then
3645     echo "version string suffix     $extra_version"
3646 fi
3647 echo "big-endian                ${bigendian-no}"
3648 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3649 if enabled x86; then
3650     echo "${yasmexe}                      ${yasm-no}"
3651     echo "MMX enabled               ${mmx-no}"
3652     echo "MMX2 enabled              ${mmx2-no}"
3653     echo "3DNow! enabled            ${amd3dnow-no}"
3654     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3655     echo "SSE enabled               ${sse-no}"
3656     echo "SSSE3 enabled             ${ssse3-no}"
3657     echo "AVX enabled               ${avx-no}"
3658     echo "CMOV enabled              ${cmov-no}"
3659     echo "CMOV is fast              ${fast_cmov-no}"
3660     echo "EBX available             ${ebx_available-no}"
3661     echo "EBP available             ${ebp_available-no}"
3662 fi
3663 if enabled arm; then
3664     echo "ARMv5TE enabled           ${armv5te-no}"
3665     echo "ARMv6 enabled             ${armv6-no}"
3666     echo "ARMv6T2 enabled           ${armv6t2-no}"
3667     echo "ARM VFP enabled           ${armvfp-no}"
3668     echo "NEON enabled              ${neon-no}"
3669 fi
3670 if enabled mips; then
3671     echo "MMI enabled               ${mmi-no}"
3672     echo "MIPS FPU enabled          ${mipsfpu-no}"
3673     echo "MIPS32R2 enabled          ${mips32r2-no}"
3674     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3675     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3676 fi
3677 if enabled ppc; then
3678     echo "AltiVec enabled           ${altivec-no}"
3679     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3680     echo "dcbzl available           ${dcbzl-no}"
3681 fi
3682 if enabled sparc; then
3683     echo "VIS enabled               ${vis-no}"
3684 fi
3685 echo "debug symbols             ${debug-no}"
3686 echo "strip symbols             ${stripping-no}"
3687 echo "optimize for size         ${small-no}"
3688 echo "optimizations             ${optimizations-no}"
3689 echo "static                    ${static-no}"
3690 echo "shared                    ${shared-no}"
3691 echo "postprocessing support    ${postproc-no}"
3692 echo "new filter support        ${avfilter-no}"
3693 echo "network support           ${network-no}"
3694 echo "threading support         ${thread_type-no}"
3695 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3696 echo "SDL support               ${sdl-no}"
3697 echo "libdxva2 enabled          ${dxva2-no}"
3698 echo "libva enabled             ${vaapi-no}"
3699 echo "libvdpau enabled          ${vdpau-no}"
3700 echo "AVISynth enabled          ${avisynth-no}"
3701 echo "frei0r enabled            ${frei0r-no}"
3702 echo "gnutls enabled            ${gnutls-no}"
3703 echo "libaacplus enabled        ${libaacplus-no}"
3704 echo "libass enabled            ${libass-no}"
3705 echo "libcaca enabled           ${libcaca-no}"
3706 echo "libcdio support           ${libcdio-no}"
3707 echo "libcelt enabled           ${libcelt-no}"
3708 echo "libdc1394 support         ${libdc1394-no}"
3709 echo "libfaac enabled           ${libfaac-no}"
3710 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3711 echo "libgsm enabled            ${libgsm-no}"
3712 echo "libiec61883 support       ${libiec61883-no}"
3713 echo "libilbc enabled           ${libilbc-no}"
3714 echo "libmodplug enabled        ${libmodplug-no}"
3715 echo "libmp3lame enabled        ${libmp3lame-no}"
3716 echo "libnut enabled            ${libnut-no}"
3717 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3718 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3719 echo "libopencv support         ${libopencv-no}"
3720 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3721 echo "libopus enabled           ${libopus-no}"
3722 echo "libpulse enabled          ${libpulse-no}"
3723 echo "librtmp enabled           ${librtmp-no}"
3724 echo "libschroedinger enabled   ${libschroedinger-no}"
3725 echo "libspeex enabled          ${libspeex-no}"
3726 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3727 echo "libtheora enabled         ${libtheora-no}"
3728 echo "libutvideo enabled        ${libutvideo-no}"
3729 echo "libv4l2 enabled           ${libv4l2-no}"
3730 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3731 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3732 echo "libvorbis enabled         ${libvorbis-no}"
3733 echo "libvpx enabled            ${libvpx-no}"
3734 echo "libx264 enabled           ${libx264-no}"
3735 echo "libxavs enabled           ${libxavs-no}"
3736 echo "libxvid enabled           ${libxvid-no}"
3737 echo "openal enabled            ${openal-no}"
3738 echo "openssl enabled           ${openssl-no}"
3739 echo "zlib enabled              ${zlib-no}"
3740 echo "bzlib enabled             ${bzlib-no}"
3741 echo "texi2html enabled         ${texi2html-no}"
3742 echo "pod2man enabled           ${pod2man-no}"
3743 echo "makeinfo enabled          ${makeinfo-no}"
3744 test -n "$random_seed" &&
3745     echo "random seed               ${random_seed}"
3746 echo
3747
3748 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3749     echo "Enabled ${type}s:"
3750     eval list=\$$(toupper $type)_LIST
3751     print_enabled '_*' $list | sort | pr -r -3 -t
3752     echo
3753 done
3754
3755 license="LGPL version 2.1 or later"
3756 if enabled nonfree; then
3757     license="nonfree and unredistributable"
3758 elif enabled gplv3; then
3759     license="GPL version 3 or later"
3760 elif enabled lgplv3; then
3761     license="LGPL version 3 or later"
3762 elif enabled gpl; then
3763     license="GPL version 2 or later"
3764 fi
3765
3766 echo "License: $license"
3767
3768 echo "Creating config.mak and config.h..."
3769
3770 test -e Makefile || $ln_s "$source_path/Makefile" .
3771
3772 enabled stripping || strip="echo skipping strip"
3773
3774 config_files="$TMPH config.mak"
3775
3776 cat > config.mak <<EOF
3777 # Automatically generated by configure - do not modify!
3778 ifndef FFMPEG_CONFIG_MAK
3779 FFMPEG_CONFIG_MAK=1
3780 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3781 prefix=$prefix
3782 LIBDIR=\$(DESTDIR)$libdir
3783 SHLIBDIR=\$(DESTDIR)$shlibdir
3784 INCDIR=\$(DESTDIR)$incdir
3785 BINDIR=\$(DESTDIR)$bindir
3786 DATADIR=\$(DESTDIR)$datadir
3787 MANDIR=\$(DESTDIR)$mandir
3788 SRC_PATH=$source_path
3789 ifndef MAIN_MAKEFILE
3790 SRC_PATH:=\$(SRC_PATH:.%=..%)
3791 endif
3792 CC_IDENT=$cc_ident
3793 ARCH=$arch
3794 CC=$cc
3795 CXX=$cxx
3796 AS=$as
3797 LD=$ld
3798 DEPCC=$dep_cc
3799 YASM=$yasmexe
3800 YASMDEP=$yasmexe
3801 AR=$ar
3802 RANLIB=$ranlib
3803 CP=cp -p
3804 LN_S=$ln_s
3805 STRIP=$strip
3806 CPPFLAGS=$CPPFLAGS
3807 CFLAGS=$CFLAGS
3808 CXXFLAGS=$CXXFLAGS
3809 ASFLAGS=$ASFLAGS
3810 AS_O=$CC_O
3811 CC_O=$CC_O
3812 CXX_O=$CXX_O
3813 LDFLAGS=$LDFLAGS
3814 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3815 SHFLAGS=$SHFLAGS
3816 YASMFLAGS=$YASMFLAGS
3817 BUILDSUF=$build_suffix
3818 PROGSSUF=$progs_suffix
3819 FULLNAME=$FULLNAME
3820 LIBPREF=$LIBPREF
3821 LIBSUF=$LIBSUF
3822 LIBNAME=$LIBNAME
3823 SLIBPREF=$SLIBPREF
3824 SLIBSUF=$SLIBSUF
3825 EXESUF=$EXESUF
3826 EXTRA_VERSION=$extra_version
3827 DEPFLAGS=$DEPFLAGS
3828 CCDEP=$CCDEP
3829 CXXDEP=$CXXDEP
3830 ASDEP=$ASDEP
3831 CC_DEPFLAGS=$CC_DEPFLAGS
3832 AS_DEPFLAGS=$AS_DEPFLAGS
3833 HOSTCC=$host_cc
3834 HOSTCFLAGS=$host_cflags
3835 HOSTEXESUF=$HOSTEXESUF
3836 HOSTLDFLAGS=$host_ldflags
3837 HOSTLIBS=$host_libs
3838 TARGET_EXEC=$target_exec
3839 TARGET_PATH=$target_path
3840 SDL_LIBS=$sdl_libs
3841 SDL_CFLAGS=$sdl_cflags
3842 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3843 EXTRALIBS=$extralibs
3844 INSTALL=$install
3845 LIBTARGET=${LIBTARGET}
3846 SLIBNAME=${SLIBNAME}
3847 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3848 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3849 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3850 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3851 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3852 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3853 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3854 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3855 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3856 NOREDZONE_FLAGS=$noredzone_flags
3857 EOF
3858
3859 get_version(){
3860     lcname=$1
3861     name=$(toupper $lcname)
3862     file=$source_path/$lcname/version.h
3863     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3864     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3865     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3866     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3867 }
3868
3869 get_version_old(){
3870     name=$1
3871     file=$source_path/$2
3872 # This condition will be removed when we stop supporting old libpostproc versions
3873 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3874     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3875     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3876 fi
3877     lcname=$(tolower $name)
3878     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3879     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3880 }
3881
3882 get_version_old LIBPOSTPROC libpostproc/postprocess.h
3883 get_version_old LIBSWRESAMPLE libswresample/swresample.h
3884
3885 get_version libavcodec
3886 get_version libavdevice
3887 get_version libavfilter
3888 get_version libavformat
3889 get_version libavresample
3890 get_version libavutil
3891 get_version libswscale
3892
3893 cat > $TMPH <<EOF
3894 /* Automatically generated by configure - do not modify! */
3895 #ifndef FFMPEG_CONFIG_H
3896 #define FFMPEG_CONFIG_H
3897 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3898 #define FFMPEG_LICENSE "$(c_escape $license)"
3899 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3900 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3901 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
3902 #define av_restrict $_restrict
3903 #define EXTERN_PREFIX "${extern_prefix}"
3904 #define EXTERN_ASM ${extern_prefix}
3905 #define SLIBSUF "$SLIBSUF"
3906 EOF
3907
3908 test -n "$assert_level" &&
3909     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3910
3911 test -n "$malloc_prefix" &&
3912     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3913
3914 if enabled yasm; then
3915     append config_files $TMPASM
3916     printf '' >$TMPASM
3917 fi
3918
3919 print_config ARCH_   "$config_files" $ARCH_LIST
3920 print_config HAVE_   "$config_files" $HAVE_LIST
3921 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3922                                      $CONFIG_EXTRA      \
3923                                      $ALL_COMPONENTS    \
3924
3925 cat >>config.mak <<EOF
3926 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3927 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3928 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3929 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3930 EOF
3931
3932 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3933 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3934
3935 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3936 cp_if_changed $TMPH config.h
3937 touch .config
3938
3939 enabled yasm && cp_if_changed $TMPASM config.asm
3940
3941 cat > $TMPH <<EOF
3942 /* Generated by ffconf */
3943 #ifndef AVUTIL_AVCONFIG_H
3944 #define AVUTIL_AVCONFIG_H
3945 EOF
3946
3947 test "$postproc_version" != current && cat >> $TMPH <<EOF
3948 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3949 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3950 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3951 EOF
3952
3953 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3954
3955 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3956
3957 cp_if_changed $TMPH libavutil/avconfig.h
3958
3959 test -n "$WARNINGS" && printf "\n$WARNINGS"
3960
3961 # build pkg-config files
3962
3963 pkgconfig_generate(){
3964 name=$1
3965 shortname=${name#lib}${build_suffix}
3966 comment=$2
3967 version=$3
3968 libs=$4
3969 requires=$5
3970 enabled ${name#lib} || return 0
3971 mkdir -p $name
3972 cat <<EOF > $name/$name.pc
3973 prefix=$prefix
3974 exec_prefix=\${prefix}
3975 libdir=$libdir
3976 includedir=$incdir
3977
3978 Name: $name
3979 Description: $comment
3980 Version: $version
3981 Requires: $(enabled shared || echo $requires)
3982 Requires.private: $(enabled shared && echo $requires)
3983 Conflicts:
3984 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3985 Libs.private: $(enabled shared && echo $libs)
3986 Cflags: -I\${includedir}
3987 EOF
3988
3989 mkdir -p doc/examples/pc-uninstalled
3990 includedir=${source_path}
3991 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
3992 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
3993 prefix=
3994 exec_prefix=
3995 libdir=\${pcfiledir}/../../../$name
3996 includedir=${includedir}
3997
3998 Name: $name
3999 Description: $comment
4000 Version: $version
4001 Requires: $requires
4002 Conflicts:
4003 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4004 Cflags: -I\${includedir}
4005 EOF
4006 }
4007
4008 libavfilter_pc_deps=""
4009 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4010 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4011 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4012 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4013 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4014 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4015
4016 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4017 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4018
4019 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4020 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4021 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4022 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4023 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4024 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4025 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4026 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4027 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"