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