lavu/parseutils: add av_small_strptime()
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Documentation options:
103   --disable-doc            do not build documentation
104   --disable-htmlpages      do not build HTML documentation pages
105   --disable-manpages       do not build man documentation pages
106   --disable-podpages       do not build POD documentation pages
107   --disable-txtpages       do not build text documentation pages
108
109 Component options:
110   --disable-ffmpeg         disable ffmpeg build
111   --disable-ffplay         disable ffplay build
112   --disable-ffprobe        disable ffprobe build
113   --disable-ffserver       disable ffserver build
114   --disable-avdevice       disable libavdevice build
115   --disable-avcodec        disable libavcodec build
116   --disable-avformat       disable libavformat build
117   --disable-swresample     disable libswresample build
118   --disable-swscale        disable libswscale build
119   --disable-postproc       disable libpostproc build
120   --disable-avfilter       disable libavfilter build
121   --enable-avresample      enable libavresample build [no]
122   --disable-pthreads       disable pthreads [auto]
123   --disable-w32threads     disable Win32 threads [auto]
124   --disable-os2threads     disable OS/2 threads [auto]
125   --enable-x11grab         enable X11 grabbing [no]
126   --disable-network        disable network support [no]
127   --disable-dct            disable DCT code
128   --disable-dwt            disable DWT code
129   --disable-lsp            disable LSP code
130   --disable-mdct           disable MDCT code
131   --disable-rdft           disable RDFT code
132   --disable-fft            disable FFT code
133   --enable-dxva2           enable DXVA2 code
134   --enable-vaapi           enable VAAPI code [autodetect]
135   --enable-vda             enable VDA code   [autodetect]
136   --enable-vdpau           enable VDPAU code [autodetect]
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176   --enable-avisynth        enable reading of AVISynth script files [no]
177   --enable-bzlib           enable bzlib [autodetect]
178   --enable-fontconfig      enable fontconfig
179   --enable-frei0r          enable frei0r video filtering
180   --enable-gnutls          enable gnutls [no]
181   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
182   --enable-libass          enable libass subtitles rendering [no]
183   --enable-libbluray       enable BluRay reading using libbluray [no]
184   --enable-libcaca         enable textual display using libcaca
185   --enable-libcelt         enable CELT decoding via libcelt [no]
186   --enable-libcdio         enable audio CD grabbing with libcdio
187   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
188                            and libraw1394 [no]
189   --enable-libfaac         enable AAC encoding via libfaac [no]
190   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
191   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
192   --enable-libfreetype     enable libfreetype [no]
193   --enable-libgsm          enable GSM de/encoding via libgsm [no]
194   --enable-libiec61883     enable iec61883 via libiec61883 [no]
195   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
196   --enable-libmodplug      enable ModPlug via libmodplug [no]
197   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
198   --enable-libnut          enable NUT (de)muxing via libnut,
199                            native (de)muxer exists [no]
200   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
201   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
202   --enable-libopencv       enable video filtering via libopencv [no]
203   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
204   --enable-libopus         enable Opus decoding via libopus [no]
205   --enable-libpulse        enable Pulseaudio input via libpulse [no]
206   --enable-librtmp         enable RTMP[E] support via librtmp [no]
207   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208   --enable-libspeex        enable Speex de/encoding via libspeex [no]
209   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
210   --enable-libtheora       enable Theora encoding via libtheora [no]
211   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
212   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
213   --enable-libv4l2         enable libv4l2/v4l-utils [no]
214   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
215   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
216   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
217                            native implementation exists [no]
218   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
219   --enable-libx264         enable H.264 encoding via x264 [no]
220   --enable-libxavs         enable AVS encoding via xavs [no]
221   --enable-libxvid         enable Xvid encoding via xvidcore,
222                            native MPEG-4/Xvid encoder exists [no]
223   --enable-openal          enable OpenAL 1.1 capture support [no]
224   --enable-openssl         enable openssl [no]
225   --enable-zlib            enable zlib [autodetect]
226
227 Advanced options (experts only):
228   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
229   --enable-cross-compile   assume a cross-compiler is used
230   --sysroot=PATH           root of cross-build tree
231   --sysinclude=PATH        location of cross-build system headers
232   --target-os=OS           compiler targets OS [$target_os]
233   --target-exec=CMD        command to run executables on target
234   --target-path=DIR        path to view of build directory on target
235   --nm=NM                  use nm tool NM [$nm_default]
236   --ar=AR                  use archive tool AR [$ar_default]
237   --as=AS                  use assembler AS [$as_default]
238   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
239   --cc=CC                  use C compiler CC [$cc_default]
240   --cxx=CXX                use C compiler CXX [$cxx_default]
241   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
242   --ld=LD                  use linker LD [$ld_default]
243   --host-cc=HOSTCC         use host C compiler HOSTCC
244   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
245   --host-ld=HOSTLD         use host linker HOSTLD
246   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
247   --host-libs=HLIBS        use libs HLIBS when linking for host
248   --host-os=OS             compiler host OS [$target_os]
249   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
250   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
251   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
252   --extra-libs=ELIBS       add ELIBS [$ELIBS]
253   --extra-version=STRING   version string suffix []
254   --optflags=OPTFLAGS      override optimization-related compiler flags
255   --build-suffix=SUFFIX    library name suffix []
256   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
257   --progs-suffix=SUFFIX    program name suffix []
258   --arch=ARCH              select architecture [$arch]
259   --cpu=CPU                select the minimum required CPU (affects
260                            instruction selection, may crash on older CPUs)
261   --enable-pic             build position-independent code
262   --enable-sram            allow use of on-chip SRAM
263   --enable-thumb           compile for Thumb instruction set
264   --disable-symver         disable symbol versioning
265   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
266   --disable-safe-bitstream-reader
267                            disable buffer boundary checking in bitreaders
268                            (faster, but may crash)
269   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
270
271 Optimization options (experts only):
272   --disable-asm            disable all assembler optimizations
273   --disable-altivec        disable AltiVec optimizations
274   --disable-amd3dnow       disable 3DNow! optimizations
275   --disable-amd3dnowext    disable 3DNow! extended optimizations
276   --disable-mmx            disable MMX optimizations
277   --disable-mmxext         disable MMXEXT optimizations
278   --disable-sse            disable SSE optimizations
279   --disable-sse2           disable SSE2 optimizations
280   --disable-sse3           disable SSE3 optimizations
281   --disable-ssse3          disable SSSE3 optimizations
282   --disable-sse4           disable SSE4 optimizations
283   --disable-sse42          disable SSE4.2 optimizations
284   --disable-avx            disable AVX optimizations
285   --disable-fma4           disable FMA4 optimizations
286   --disable-armv5te        disable armv5te optimizations
287   --disable-armv6          disable armv6 optimizations
288   --disable-armv6t2        disable armv6t2 optimizations
289   --disable-armvfp         disable ARM VFP optimizations
290   --disable-mmi            disable MMI optimizations
291   --disable-neon           disable NEON optimizations
292   --disable-vis            disable VIS optimizations
293   --disable-yasm           disable use of yasm assembler
294   --disable-mips32r2       disable MIPS32R2 optimizations
295   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
296   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
297   --disable-mipsfpu        disable floating point MIPS optimizations
298   --disable-fast-unaligned consider unaligned accesses slow
299   --postproc-version=V     build libpostproc version V.
300                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
301
302 Developer options (useful when working on FFmpeg itself):
303   --enable-coverage        build with test coverage instrumentation
304   --disable-debug          disable debugging symbols
305   --enable-debug=LEVEL     set the debug level [$debuglevel]
306   --disable-optimizations  disable compiler optimizations
307   --enable-extra-warnings  enable more compiler warnings
308   --disable-stripping      disable stripping of executables and shared libraries
309   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
310                            2 causes a slowdown at runtime.
311   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
312   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
313                            leaks and errors, using the specified valgrind binary.
314                            Cannot be combined with --target-exec
315   --samples=PATH           location of test samples for FATE, if not set use
316                            \$FATE_SAMPLES at make invocation time.
317   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
318                            should be used only for debugging purposes)
319   --enable-random          randomly enable/disable components
320   --disable-random
321   --enable-random=LIST     randomly enable/disable specific components or
322   --disable-random=LIST    component groups. LIST is a comma-separated list
323                            of NAME[:PROB] entries where NAME is a component
324                            (group) and PROB the probability associated with
325                            NAME (default 0.5).
326   --random-seed=VALUE      seed value for --enable/disable-random
327
328 NOTE: Object files are built at the place where configure is launched.
329 EOF
330   exit 0
331 }
332
333 quotes='""'
334
335 log(){
336     echo "$@" >> $logfile
337 }
338
339 log_file(){
340     log BEGIN $1
341     pr -n -t $1 >> $logfile
342     log END $1
343 }
344
345 echolog(){
346     log "$@"
347     echo "$@"
348 }
349
350 warn(){
351     log "WARNING: $*"
352     WARNINGS="${WARNINGS}WARNING: $*\n"
353 }
354
355 die(){
356     echolog "$@"
357     cat <<EOF
358
359 If you think configure made a mistake, make sure you are using the latest
360 version from Git.  If the latest version fails, report the problem to the
361 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
362 EOF
363     if disabled logging; then
364         cat <<EOF
365 Rerun configure with logging enabled (do not use --disable-logging), and
366 include the log this produces with your report.
367 EOF
368     else
369 cat <<EOF
370 Include the log file "$logfile" produced by configure as this will help
371 solving the problem.
372 EOF
373     fi
374     exit 1
375 }
376
377 # Avoid locale weirdness, besides we really just want to translate ASCII.
378 toupper(){
379     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
380 }
381
382 tolower(){
383     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
384 }
385
386 c_escape(){
387     echo "$*" | sed 's/["\\]/\\\0/g'
388 }
389
390 sh_quote(){
391     v=$(echo "$1" | sed "s/'/'\\\\''/g")
392     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
393     echo "$v"
394 }
395
396 cleanws(){
397     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
398 }
399
400 filter(){
401     pat=$1
402     shift
403     for v; do
404         eval "case $v in $pat) echo $v ;; esac"
405     done
406 }
407
408 filter_out(){
409     pat=$1
410     shift
411     for v; do
412         eval "case $v in $pat) ;; *) echo $v ;; esac"
413     done
414 }
415
416 map(){
417     m=$1
418     shift
419     for v; do eval $m; done
420 }
421
422 add_suffix(){
423     suffix=$1
424     shift
425     for v; do echo ${v}${suffix}; done
426 }
427
428 set_all(){
429     value=$1
430     shift
431     for var in $*; do
432         eval $var=$value
433     done
434 }
435
436 set_weak(){
437     value=$1
438     shift
439     for var; do
440         eval : \${$var:=$value}
441     done
442 }
443
444 set_safe(){
445     var=$1
446     shift
447     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
448 }
449
450 get_safe(){
451     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
452 }
453
454 pushvar(){
455     for var in $*; do
456         eval level=\${${var}_level:=0}
457         eval ${var}_${level}="\$$var"
458         eval ${var}_level=$(($level+1))
459     done
460 }
461
462 popvar(){
463     for var in $*; do
464         eval level=\${${var}_level:-0}
465         test $level = 0 && continue
466         eval level=$(($level-1))
467         eval $var="\${${var}_${level}}"
468         eval ${var}_level=$level
469         eval unset ${var}_${level}
470     done
471 }
472
473 enable(){
474     set_all yes $*
475 }
476
477 disable(){
478     set_all no $*
479 }
480
481 enable_weak(){
482     set_weak yes $*
483 }
484
485 disable_weak(){
486     set_weak no $*
487 }
488
489 enable_safe(){
490     for var; do
491         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
492     done
493 }
494
495 disable_safe(){
496     for var; do
497         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
498     done
499 }
500
501 do_enable_deep(){
502     for var; do
503         enabled $var && continue
504         eval sel="\$${var}_select"
505         eval sgs="\$${var}_suggest"
506         pushvar var sgs
507         enable_deep $sel
508         popvar sgs
509         enable_deep_weak $sgs
510         popvar var
511     done
512 }
513
514 enable_deep(){
515     do_enable_deep $*
516     enable $*
517 }
518
519 enable_deep_weak(){
520     do_enable_deep $*
521     enable_weak $*
522 }
523
524 enabled(){
525     test "${1#!}" = "$1" && op== || op=!=
526     eval test "x\$${1#!}" $op "xyes"
527 }
528
529 disabled(){
530     test "${1#!}" = "$1" && op== || op=!=
531     eval test "x\$${1#!}" $op "xno"
532 }
533
534 enabled_all(){
535     for opt; do
536         enabled $opt || return 1
537     done
538 }
539
540 disabled_all(){
541     for opt; do
542         disabled $opt || return 1
543     done
544 }
545
546 enabled_any(){
547     for opt; do
548         enabled $opt && return 0
549     done
550 }
551
552 disabled_any(){
553     for opt; do
554         disabled $opt && return 0
555     done
556     return 1
557 }
558
559 set_default(){
560     for opt; do
561         eval : \${$opt:=\$${opt}_default}
562     done
563 }
564
565 is_in(){
566     value=$1
567     shift
568     for var in $*; do
569         [ $var = $value ] && return 0
570     done
571     return 1
572 }
573
574 check_deps(){
575     for cfg; do
576         cfg="${cfg#!}"
577         enabled ${cfg}_checking && die "Circular dependency for $cfg."
578         disabled ${cfg}_checking && continue
579         enable ${cfg}_checking
580
581         eval dep_all="\$${cfg}_deps"
582         eval dep_any="\$${cfg}_deps_any"
583         eval dep_sel="\$${cfg}_select"
584         eval dep_sgs="\$${cfg}_suggest"
585         eval dep_ifa="\$${cfg}_if"
586         eval dep_ifn="\$${cfg}_if_any"
587
588         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
589         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
590         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
591
592         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
593         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
594         enabled_all  $dep_all || disable $cfg
595         enabled_any  $dep_any || disable $cfg
596         disabled_any $dep_sel && disable $cfg
597
598         if enabled $cfg; then
599             eval dep_extralibs="\$${cfg}_extralibs"
600             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
601             enable_deep $dep_sel
602             enable_deep_weak $dep_sgs
603         fi
604
605         disable ${cfg}_checking
606     done
607 }
608
609 print_config_h(){
610     enabled $1 && v=1 || v=0
611     echo "#define $2 $v"
612 }
613
614 print_config_mak(){
615     enabled $1 && v= || v=!
616     echo "$v$2=yes"
617 }
618
619 print_config_asm(){
620     enabled $1 && v=1 || v=0
621     echo "%define $2 $v"
622 }
623
624 print_config(){
625     pfx=$1
626     files=$2
627     shift 2
628     for cfg; do
629         ucname="$(toupper $cfg)"
630         for f in $files; do
631             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
632         done
633     done
634 }
635
636 print_enabled(){
637     test "$1" = -n && end=" " && shift || end="\n"
638     suf=$1
639     shift
640     for v; do
641         enabled $v && printf "%s$end" ${v%$suf};
642     done
643 }
644
645 append(){
646     var=$1
647     shift
648     eval "$var=\"\$$var $*\""
649 }
650
651 prepend(){
652     var=$1
653     shift
654     eval "$var=\"$* \$$var\""
655 }
656
657 add_cppflags(){
658     append CPPFLAGS "$@"
659 }
660
661 add_cflags(){
662     append CFLAGS $($cflags_filter "$@")
663 }
664
665 add_cxxflags(){
666     append CXXFLAGS $($cflags_filter "$@")
667 }
668
669 add_asflags(){
670     append ASFLAGS $($asflags_filter "$@")
671 }
672
673 add_ldflags(){
674     append LDFLAGS $($ldflags_filter "$@")
675 }
676
677 add_extralibs(){
678     prepend extralibs $($ldflags_filter "$@")
679 }
680
681 add_host_cflags(){
682     append host_cflags $($host_cflags_filter "$@")
683 }
684
685 add_host_ldflags(){
686     append host_ldflags $($host_ldflags_filter "$@")
687 }
688
689 check_cmd(){
690     log "$@"
691     "$@" >> $logfile 2>&1
692 }
693
694 cc_o(){
695     eval printf '%s\\n' $CC_O
696 }
697
698 cc_e(){
699     eval printf '%s\\n' $CC_E
700 }
701
702 check_cc(){
703     log check_cc "$@"
704     cat > $TMPC
705     log_file $TMPC
706     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
707 }
708
709 check_cxx(){
710     log check_cxx "$@"
711     cat > $TMPCPP
712     log_file $TMPCPP
713     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
714 }
715
716 check_cpp(){
717     log check_cpp "$@"
718     cat > $TMPC
719     log_file $TMPC
720     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
721 }
722
723 as_o(){
724     eval printf '%s\\n' $AS_O
725 }
726
727 check_as(){
728     log check_as "$@"
729     cat > $TMPC
730     log_file $TMPC
731     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
732 }
733
734 check_inline_asm(){
735     log check_inline_asm "$@"
736     name="$1"
737     code="$2"
738     shift 2
739     disable $name
740     check_as "$@" <<EOF && enable $name
741 void foo(void){ __asm__ volatile($code); }
742 EOF
743 }
744
745 check_yasm(){
746     log check_yasm "$@"
747     echo "$1" > $TMPS
748     log_file $TMPS
749     shift 1
750     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
751 }
752
753 ld_o(){
754     eval printf '%s\\n' $LD_O
755 }
756
757 check_ld(){
758     log check_ld "$@"
759     type=$1
760     shift 1
761     flags=''
762     libs=''
763     for f; do
764         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
765     done
766     check_$type $($cflags_filter $flags) || return
767     flags=$($ldflags_filter $flags)
768     libs=$($ldflags_filter $libs)
769     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
770 }
771
772 check_code(){
773     log check_code "$@"
774     check=$1
775     headers=$2
776     code=$3
777     shift 3
778     {
779         for hdr in $headers; do
780             echo "#include <$hdr>"
781         done
782         echo "int main(void) { $code; return 0; }"
783     } | check_$check "$@"
784 }
785
786 check_cppflags(){
787     log check_cppflags "$@"
788     check_cc "$@" <<EOF && append CPPFLAGS "$@"
789 int x;
790 EOF
791 }
792
793 check_cflags(){
794     log check_cflags "$@"
795     set -- $($cflags_filter "$@")
796     check_cc "$@" <<EOF && append CFLAGS "$@"
797 int x;
798 EOF
799 }
800
801 check_cxxflags(){
802     log check_cxxflags "$@"
803     set -- $($cflags_filter "$@")
804     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
805 int x;
806 EOF
807 }
808
809 test_ldflags(){
810     log test_ldflags "$@"
811     check_ld "cc" "$@" <<EOF
812 int main(void){ return 0; }
813 EOF
814 }
815
816 check_ldflags(){
817     log check_ldflags "$@"
818     test_ldflags "$@" && add_ldflags "$@"
819 }
820
821 check_header(){
822     log check_header "$@"
823     header=$1
824     shift
825     disable_safe $header
826     check_cpp "$@" <<EOF && enable_safe $header
827 #include <$header>
828 int x;
829 EOF
830 }
831
832 check_func(){
833     log check_func "$@"
834     func=$1
835     shift
836     disable $func
837     check_ld "cc" "$@" <<EOF && enable $func
838 extern int $func();
839 int main(void){ $func(); }
840 EOF
841 }
842
843 check_mathfunc(){
844     log check_mathfunc "$@"
845     func=$1
846     shift
847     disable $func
848     check_ld "cc" "$@" <<EOF && enable $func
849 #include <math.h>
850 float foo(float f) { return $func(f); }
851 int main(void){ return (int) foo; }
852 EOF
853 }
854
855 check_func_headers(){
856     log check_func_headers "$@"
857     headers=$1
858     funcs=$2
859     shift 2
860     {
861         for hdr in $headers; do
862             echo "#include <$hdr>"
863         done
864         for func in $funcs; do
865             echo "long check_$func(void) { return (long) $func; }"
866         done
867         echo "int main(void) { return 0; }"
868     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
869 }
870
871 check_class_headers_cpp(){
872     log check_class_headers_cpp "$@"
873     headers=$1
874     classes=$2
875     shift 2
876     {
877         for hdr in $headers; do
878             echo "#include <$hdr>"
879         done
880         echo "int main(void) { "
881         i=1
882         for class in $classes; do
883             echo "$class obj$i;"
884             i=$(expr $i + 1)
885         done
886         echo "return 0; }"
887     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
888 }
889
890 check_cpp_condition(){
891     log check_cpp_condition "$@"
892     header=$1
893     condition=$2
894     shift 2
895     check_cpp "$@" <<EOF
896 #include <$header>
897 #if !($condition)
898 #error "unsatisfied condition: $condition"
899 #endif
900 EOF
901 }
902
903 check_lib(){
904     log check_lib "$@"
905     header="$1"
906     func="$2"
907     shift 2
908     check_header $header && check_func $func "$@" && add_extralibs "$@"
909 }
910
911 check_lib2(){
912     log check_lib2 "$@"
913     headers="$1"
914     funcs="$2"
915     shift 2
916     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
917 }
918
919 check_lib_cpp(){
920     log check_lib_cpp "$@"
921     headers="$1"
922     classes="$2"
923     shift 2
924     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
925 }
926
927 check_pkg_config(){
928     log check_pkg_config "$@"
929     pkg="$1"
930     headers="$2"
931     funcs="$3"
932     shift 3
933     $pkg_config --exists $pkg 2>/dev/null || return
934     pkg_cflags=$($pkg_config --cflags $pkg)
935     pkg_libs=$($pkg_config --libs $pkg)
936     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
937         set_safe ${pkg}_cflags $pkg_cflags   &&
938         set_safe ${pkg}_libs   $pkg_libs
939 }
940
941 check_exec(){
942     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
943 }
944
945 check_exec_crash(){
946     code=$(cat)
947
948     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
949     # are safe but may not be available everywhere.  Thus we use
950     # raise(SIGTERM) instead.  The check is run in a subshell so we
951     # can redirect the "Terminated" message from the shell.  SIGBUS
952     # is not defined by standard C so it is used conditionally.
953
954     (check_exec "$@") >> $logfile 2>&1 <<EOF
955 #include <signal.h>
956 static void sighandler(int sig){
957     raise(SIGTERM);
958 }
959 int func(void){
960     $code
961 }
962 int (*func_ptr)(void) = func;
963 int main(void){
964     signal(SIGILL, sighandler);
965     signal(SIGFPE, sighandler);
966     signal(SIGSEGV, sighandler);
967 #ifdef SIGBUS
968     signal(SIGBUS, sighandler);
969 #endif
970     return func_ptr();
971 }
972 EOF
973 }
974
975 check_type(){
976     log check_type "$@"
977     headers=$1
978     type=$2
979     shift 2
980     disable_safe "$type"
981     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
982 }
983
984 check_struct(){
985     log check_type "$@"
986     headers=$1
987     struct=$2
988     member=$3
989     shift 3
990     disable_safe "${struct}_${member}"
991     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
992         enable_safe "${struct}_${member}"
993 }
994
995 require(){
996     name="$1"
997     header="$2"
998     func="$3"
999     shift 3
1000     check_lib $header $func "$@" || die "ERROR: $name not found"
1001 }
1002
1003 require2(){
1004     name="$1"
1005     headers="$2"
1006     func="$3"
1007     shift 3
1008     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1009 }
1010
1011 require_cpp(){
1012     name="$1"
1013     headers="$2"
1014     classes="$3"
1015     shift 3
1016     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1017 }
1018
1019 require_pkg_config(){
1020     pkg="$1"
1021     check_pkg_config "$@" || die "ERROR: $pkg not found"
1022     add_cflags    $(get_safe ${pkg}_cflags)
1023     add_extralibs $(get_safe ${pkg}_libs)
1024 }
1025
1026 hostcc_o(){
1027     eval printf '%s\\n' $HOSTCC_O
1028 }
1029
1030 check_host_cc(){
1031     log check_host_cc "$@"
1032     cat > $TMPC
1033     log_file $TMPC
1034     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1035 }
1036
1037 check_host_cflags(){
1038     log check_host_cflags "$@"
1039     set -- $($host_cflags_filter "$@")
1040     check_host_cc "$@" <<EOF && append host_cflags "$@"
1041 int x;
1042 EOF
1043 }
1044
1045 apply(){
1046     file=$1
1047     shift
1048     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1049 }
1050
1051 cp_if_changed(){
1052     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1053     mkdir -p "$(dirname $2)"
1054     cp -f "$1" "$2"
1055 }
1056
1057 force_include(){
1058     flag=$(eval printf '%s%s\\n' '$FORCE_INC' $1)
1059     append CFLAGS "$flag"
1060 }
1061
1062 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1063 # system-dependent things.
1064
1065 COMPONENT_LIST="
1066     bsfs
1067     decoders
1068     demuxers
1069     encoders
1070     filters
1071     hwaccels
1072     indevs
1073     muxers
1074     outdevs
1075     parsers
1076     protocols
1077 "
1078
1079 DOCUMENT_LIST="
1080     doc
1081     htmlpages
1082     manpages
1083     podpages
1084     txtpages
1085 "
1086
1087 PROGRAM_LIST="
1088     ffplay
1089     ffprobe
1090     ffserver
1091     ffmpeg
1092 "
1093
1094 CONFIG_LIST="
1095     $COMPONENT_LIST
1096     $DOCUMENT_LIST
1097     $PROGRAM_LIST
1098     avcodec
1099     avdevice
1100     avfilter
1101     avformat
1102     avresample
1103     avisynth
1104     bzlib
1105     crystalhd
1106     dct
1107     dwt
1108     dxva2
1109     fast_unaligned
1110     fft
1111     fontconfig
1112     frei0r
1113     gnutls
1114     gpl
1115     gray
1116     hardcoded_tables
1117     incompatible_fork_abi
1118     libaacplus
1119     libass
1120     libbluray
1121     libcaca
1122     libcdio
1123     libcelt
1124     libdc1394
1125     libfaac
1126     libfdk_aac
1127     libflite
1128     libfreetype
1129     libgsm
1130     libiec61883
1131     libilbc
1132     libmodplug
1133     libmp3lame
1134     libnut
1135     libopencore_amrnb
1136     libopencore_amrwb
1137     libopencv
1138     libopenjpeg
1139     libopus
1140     libpulse
1141     librtmp
1142     libschroedinger
1143     libspeex
1144     libstagefright_h264
1145     libtheora
1146     libtwolame
1147     libutvideo
1148     libv4l2
1149     libvo_aacenc
1150     libvo_amrwbenc
1151     libvorbis
1152     libvpx
1153     libx264
1154     libxavs
1155     libxvid
1156     lsp
1157     mdct
1158     memalign_hack
1159     memory_poisoning
1160     network
1161     nonfree
1162     openal
1163     openssl
1164     pic
1165     postproc
1166     rdft
1167     runtime_cpudetect
1168     safe_bitstream_reader
1169     shared
1170     small
1171     sram
1172     static
1173     swresample
1174     swscale
1175     swscale_alpha
1176     thumb
1177     vaapi
1178     vda
1179     vdpau
1180     version3
1181     xmm_clobber_test
1182     x11grab
1183     zlib
1184 "
1185
1186 THREADS_LIST='
1187     pthreads
1188     w32threads
1189     os2threads
1190 '
1191
1192 ARCH_LIST='
1193     alpha
1194     arm
1195     avr32
1196     avr32_ap
1197     avr32_uc
1198     bfin
1199     ia64
1200     m68k
1201     mips
1202     mips64
1203     parisc
1204     ppc
1205     ppc64
1206     s390
1207     sh4
1208     sparc
1209     sparc64
1210     tomi
1211     x86
1212     x86_32
1213     x86_64
1214 '
1215
1216 ARCH_EXT_LIST_X86='
1217     amd3dnow
1218     amd3dnowext
1219     avx
1220     fma4
1221     mmx
1222     mmxext
1223     sse
1224     sse2
1225     sse3
1226     sse4
1227     sse42
1228     ssse3
1229 '
1230
1231 ARCH_EXT_LIST="
1232     $ARCH_EXT_LIST_X86
1233     altivec
1234     armv5te
1235     armv6
1236     armv6t2
1237     armvfp
1238     mmi
1239     neon
1240     ppc4xx
1241     vfpv3
1242     vis
1243     mipsfpu
1244     mips32r2
1245     mipsdspr1
1246     mipsdspr2
1247 "
1248
1249 HAVE_LIST_PUB='
1250     bigendian
1251     fast_unaligned
1252     incompatible_fork_abi
1253 '
1254
1255 HAVE_LIST="
1256     $ARCH_EXT_LIST
1257     $(add_suffix _external $ARCH_EXT_LIST)
1258     $(add_suffix _inline   $ARCH_EXT_LIST)
1259     $HAVE_LIST_PUB
1260     $THREADS_LIST
1261     aligned_malloc
1262     aligned_stack
1263     alsa_asoundlib_h
1264     altivec_h
1265     arpa_inet_h
1266     asm_mod_q
1267     asm_mod_y
1268     asm_types_h
1269     attribute_may_alias
1270     attribute_packed
1271     broken_strtod
1272     cbrtf
1273     clock_gettime
1274     closesocket
1275     cmov
1276     cpuid
1277     cpunop
1278     dcbzl
1279     dev_bktr_ioctl_bt848_h
1280     dev_bktr_ioctl_meteor_h
1281     dev_ic_bt8xx_h
1282     dev_video_bktr_ioctl_bt848_h
1283     dev_video_meteor_ioctl_meteor_h
1284     dlfcn_h
1285     dlopen
1286     dos_paths
1287     dxva_h
1288     ebp_available
1289     ebx_available
1290     exp2
1291     exp2f
1292     fast_64bit
1293     fast_clz
1294     fast_cmov
1295     fcntl
1296     fork
1297     getaddrinfo
1298     gethrtime
1299     getopt
1300     GetProcessAffinityMask
1301     GetProcessMemoryInfo
1302     GetProcessTimes
1303     GetSystemTimeAsFileTime
1304     getrusage
1305     gettimeofday
1306     glob
1307     gnu_as
1308     ibm_asm
1309     inet_aton
1310     inline_asm
1311     isatty
1312     isinf
1313     isnan
1314     jack_port_get_latency_range
1315     kbhit
1316     ldbrx
1317     libdc1394_1
1318     libdc1394_2
1319     llrint
1320     llrintf
1321     local_aligned_16
1322     local_aligned_8
1323     localtime_r
1324     log2
1325     log2f
1326     loongson
1327     lrint
1328     lrintf
1329     lzo1x_999_compress
1330     machine_ioctl_bt848_h
1331     machine_ioctl_meteor_h
1332     makeinfo
1333     malloc_h
1334     MapViewOfFile
1335     memalign
1336     mkstemp
1337     mm_empty
1338     mmap
1339     nanosleep
1340     PeekNamedPipe
1341     perl
1342     pod2man
1343     poll_h
1344     posix_memalign
1345     pthread_cancel
1346     rdtsc
1347     rint
1348     round
1349     roundf
1350     rweflags
1351     sched_getaffinity
1352     sdl
1353     sdl_video_size
1354     setmode
1355     setrlimit
1356     Sleep
1357     sndio_h
1358     snprintf
1359     socklen_t
1360     soundcard_h
1361     strerror_r
1362     struct_addrinfo
1363     struct_group_source_req
1364     struct_ip_mreq_source
1365     struct_ipv6_mreq
1366     struct_pollfd
1367     struct_rusage_ru_maxrss
1368     struct_sctp_event_subscribe
1369     struct_sockaddr_in6
1370     struct_sockaddr_sa_len
1371     struct_sockaddr_storage
1372     struct_v4l2_frmivalenum_discrete
1373     symver
1374     symver_asm_label
1375     symver_gnu_asm
1376     sysconf
1377     sysctl
1378     sys_mman_h
1379     sys_param_h
1380     sys_resource_h
1381     sys_select_h
1382     sys_soundcard_h
1383     sys_time_h
1384     sys_videoio_h
1385     termios_h
1386     texi2html
1387     threads
1388     trunc
1389     truncf
1390     unistd_h
1391     usleep
1392     vfp_args
1393     VirtualAlloc
1394     windows_h
1395     winsock2_h
1396     xform_asm
1397     xgetbv
1398     xmm_clobbers
1399     yasm
1400 "
1401
1402 # options emitted with CONFIG_ prefix but not available on command line
1403 CONFIG_EXTRA="
1404     aandcttables
1405     ac3dsp
1406     avutil
1407     error_resilience
1408     gcrypt
1409     golomb
1410     gplv3
1411     h264chroma
1412     h264dsp
1413     h264pred
1414     h264qpel
1415     huffman
1416     lgplv3
1417     lpc
1418     mpegaudiodsp
1419     mpegvideo
1420     mpegvideoenc
1421     nettle
1422     rangecoder
1423     rtpdec
1424     sinewin
1425     vp3dsp
1426 "
1427
1428 CMDLINE_SELECT="
1429     $ARCH_EXT_LIST
1430     $CONFIG_LIST
1431     $THREADS_LIST
1432     asm
1433     coverage
1434     cross_compile
1435     debug
1436     extra_warnings
1437     logging
1438     optimizations
1439     stripping
1440     symver
1441     yasm
1442 "
1443
1444 PATHS_LIST='
1445     bindir
1446     datadir
1447     incdir
1448     libdir
1449     mandir
1450     prefix
1451     shlibdir
1452 '
1453
1454 CMDLINE_SET="
1455     $PATHS_LIST
1456     ar
1457     arch
1458     as
1459     assert_level
1460     build_suffix
1461     cc
1462     cpu
1463     cross_prefix
1464     cxx
1465     dep_cc
1466     extra_version
1467     host_cc
1468     host_cflags
1469     host_ld
1470     host_ldflags
1471     host_libs
1472     host_os
1473     install
1474     ld
1475     logfile
1476     malloc_prefix
1477     nm
1478     optflags
1479     pkg_config
1480     postproc_version
1481     progs_suffix
1482     random_seed
1483     samples
1484     strip
1485     sysinclude
1486     sysroot
1487     target_exec
1488     target_os
1489     target_path
1490     valgrind
1491     yasmexe
1492 "
1493
1494 CMDLINE_APPEND="
1495     extra_cflags
1496     extra_cxxflags
1497 "
1498
1499 # code dependency declarations
1500
1501 # architecture extensions
1502
1503 armv5te_deps="arm"
1504 armv6_deps="arm"
1505 armv6t2_deps="arm"
1506 armvfp_deps="arm"
1507 neon_deps="arm"
1508 vfpv3_deps="armvfp"
1509
1510 mipsfpu_deps="mips"
1511 mips32r2_deps="mips"
1512 mipsdspr1_deps="mips"
1513 mipsdspr2_deps="mips"
1514 mmi_deps="mips"
1515
1516 altivec_deps="ppc"
1517 ppc4xx_deps="ppc"
1518
1519 vis_deps="sparc"
1520
1521 x86_64_suggest="cmov fast_cmov"
1522
1523 amd3dnow_deps="mmx"
1524 amd3dnowext_deps="amd3dnow"
1525 mmx_deps="x86"
1526 mmxext_deps="mmx"
1527 sse_deps="mmxext"
1528 sse2_deps="sse"
1529 sse3_deps="sse2"
1530 ssse3_deps="sse3"
1531 sse4_deps="ssse3"
1532 sse42_deps="sse4"
1533 avx_deps="sse42"
1534 fma4_deps="avx"
1535
1536 mmx_external_deps="yasm"
1537 mmx_inline_deps="inline_asm"
1538 mmx_suggest="mmx_external mmx_inline"
1539
1540 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1541     eval dep=\$${ext}_deps
1542     eval ${ext}_external_deps='"${dep}_external"'
1543     eval ${ext}_inline_deps='"${dep}_inline"'
1544     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1545 done
1546
1547 aligned_stack_if_any="ppc x86"
1548 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1549 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1550 fast_unaligned_if_any="armv6 ppc x86"
1551
1552 inline_asm_deps="!tms470"
1553 need_memalign="altivec neon sse"
1554
1555 symver_if_any="symver_asm_label symver_gnu_asm"
1556
1557 # subsystems
1558 dct_select="rdft"
1559 mdct_select="fft"
1560 rdft_select="fft"
1561 mpegaudiodsp_select="dct"
1562 mpegvideoenc_select="mpegvideo"
1563
1564 # decoders / encoders / hardware accelerators
1565 aac_decoder_select="mdct sinewin"
1566 aac_encoder_select="mdct sinewin"
1567 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1568 ac3_decoder_select="mdct ac3dsp ac3_parser"
1569 ac3_encoder_select="mdct ac3dsp"
1570 ac3_fixed_encoder_select="mdct ac3dsp"
1571 alac_encoder_select="lpc"
1572 amrnb_decoder_select="lsp"
1573 amrwb_decoder_select="lsp"
1574 amv_encoder_select="aandcttables"
1575 atrac1_decoder_select="mdct sinewin"
1576 atrac3_decoder_select="mdct"
1577 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1578 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1579 cavs_decoder_select="golomb mpegvideo"
1580 cook_decoder_select="mdct sinewin"
1581 cscd_decoder_suggest="zlib"
1582 dca_decoder_select="mdct"
1583 dirac_decoder_select="dwt golomb"
1584 dnxhd_encoder_select="aandcttables mpegvideoenc"
1585 dxa_decoder_select="zlib"
1586 eac3_decoder_select="ac3_decoder"
1587 eac3_encoder_select="ac3_encoder"
1588 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1589 eatgq_decoder_select="aandcttables"
1590 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1591 exr_decoder_select="zlib"
1592 ffv1_decoder_select="golomb rangecoder"
1593 ffv1_encoder_select="rangecoder"
1594 ffvhuff_encoder_select="huffman"
1595 flac_decoder_select="golomb"
1596 flac_encoder_select="golomb lpc"
1597 flashsv_decoder_select="zlib"
1598 flashsv_encoder_select="zlib"
1599 flashsv2_encoder_select="zlib"
1600 flashsv2_decoder_select="zlib"
1601 flv_decoder_select="h263_decoder"
1602 flv_encoder_select="h263_encoder"
1603 fraps_decoder_select="huffman"
1604 h261_decoder_select="error_resilience mpegvideo"
1605 h261_encoder_select="aandcttables mpegvideoenc"
1606 h263_decoder_select="error_resilience h263_parser mpegvideo"
1607 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1608 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1609 h263i_decoder_select="h263_decoder"
1610 h263p_encoder_select="h263_encoder"
1611 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1612 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1613 h264_dxva2_hwaccel_deps="dxva2api_h"
1614 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1615 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1616 h264_vda_decoder_select="vda h264_parser h264_decoder"
1617 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1618 h264_vda_hwaccel_select="vda h264_decoder"
1619 h264_vdpau_decoder_select="vdpau h264_decoder"
1620 huffyuv_encoder_select="huffman"
1621 iac_decoder_select="fft mdct sinewin"
1622 imc_decoder_select="fft mdct sinewin"
1623 jpegls_decoder_select="golomb"
1624 jpegls_encoder_select="golomb"
1625 ljpeg_encoder_select="aandcttables mpegvideoenc"
1626 loco_decoder_select="golomb"
1627 mdec_decoder_select="error_resilience mpegvideo"
1628 mjpeg_encoder_select="aandcttables mpegvideoenc"
1629 mlp_decoder_select="mlp_parser"
1630 mp1_decoder_select="mpegaudiodsp"
1631 mp1float_decoder_select="mpegaudiodsp"
1632 mp2_decoder_select="mpegaudiodsp"
1633 mp2float_decoder_select="mpegaudiodsp"
1634 mp3_decoder_select="mpegaudiodsp"
1635 mp3adu_decoder_select="mpegaudiodsp"
1636 mp3adufloat_decoder_select="mpegaudiodsp"
1637 mp3float_decoder_select="mpegaudiodsp"
1638 mp3on4_decoder_select="mpegaudiodsp"
1639 mp3on4float_decoder_select="mpegaudiodsp"
1640 mpc7_decoder_select="mpegaudiodsp"
1641 mpc8_decoder_select="mpegaudiodsp"
1642 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1643 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1644 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1645 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1646 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1647 mpeg1video_decoder_select="error_resilience mpegvideo"
1648 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1649 mpeg2_crystalhd_decoder_select="crystalhd"
1650 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1651 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1652 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1653 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1654 mpeg2video_decoder_select="error_resilience mpegvideo"
1655 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1656 mpeg4_crystalhd_decoder_select="crystalhd"
1657 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1658 mpeg4_encoder_select="h263_encoder"
1659 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1660 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1661 msmpeg4_crystalhd_decoder_select="crystalhd"
1662 msmpeg4v1_decoder_select="h263_decoder"
1663 msmpeg4v1_encoder_select="h263_encoder"
1664 msmpeg4v2_decoder_select="h263_decoder"
1665 msmpeg4v2_encoder_select="h263_encoder"
1666 msmpeg4v3_decoder_select="h263_decoder"
1667 msmpeg4v3_encoder_select="h263_encoder"
1668 mss2_decoder_select="vc1_decoder"
1669 nellymoser_decoder_select="mdct sinewin"
1670 nellymoser_encoder_select="mdct sinewin"
1671 png_decoder_select="zlib"
1672 png_encoder_select="zlib"
1673 qcelp_decoder_select="lsp"
1674 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1675 ra_144_encoder_select="lpc"
1676 ralf_decoder_select="golomb"
1677 rv10_decoder_select="h263_decoder"
1678 rv10_encoder_select="h263_encoder"
1679 rv20_decoder_select="h263_decoder"
1680 rv20_encoder_select="h263_encoder"
1681 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1682 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1683 shorten_decoder_select="golomb"
1684 sipr_decoder_select="lsp"
1685 snow_decoder_select="dwt rangecoder"
1686 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1687 sonic_decoder_select="golomb"
1688 sonic_encoder_select="golomb"
1689 sonic_ls_encoder_select="golomb"
1690 svq1_decoder_select="error_resilience mpegvideo"
1691 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1692 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1693 svq3_decoder_suggest="zlib"
1694 theora_decoder_select="vp3_decoder"
1695 tiff_decoder_suggest="zlib"
1696 tiff_encoder_suggest="zlib"
1697 tscc_decoder_select="zlib"
1698 twinvq_decoder_select="mdct lsp sinewin"
1699 utvideo_encoder_select="huffman"
1700 vc1_crystalhd_decoder_select="crystalhd"
1701 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1702 vc1_dxva2_hwaccel_deps="dxva2api_h"
1703 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1704 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1705 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1706 vc1image_decoder_select="vc1_decoder"
1707 vorbis_decoder_select="mdct"
1708 vorbis_encoder_select="mdct"
1709 vp3_decoder_select="vp3dsp"
1710 vp5_decoder_select="vp3dsp"
1711 vp6_decoder_select="huffman vp3dsp"
1712 vp6a_decoder_select="vp6_decoder"
1713 vp6f_decoder_select="vp6_decoder"
1714 vp8_decoder_select="h264pred h264qpel"
1715 wmapro_decoder_select="mdct sinewin"
1716 wmav1_decoder_select="mdct sinewin"
1717 wmav1_encoder_select="mdct sinewin"
1718 wmav2_decoder_select="mdct sinewin"
1719 wmav2_encoder_select="mdct sinewin"
1720 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1721 wmv1_decoder_select="h263_decoder"
1722 wmv1_encoder_select="h263_encoder"
1723 wmv2_decoder_select="h263_decoder"
1724 wmv2_encoder_select="h263_encoder"
1725 wmv3_decoder_select="vc1_decoder"
1726 wmv3_crystalhd_decoder_select="crystalhd"
1727 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1728 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1729 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1730 wmv3image_decoder_select="wmv3_decoder"
1731 zerocodec_decoder_select="zlib"
1732 zlib_decoder_select="zlib"
1733 zlib_encoder_select="zlib"
1734 zmbv_decoder_select="zlib"
1735 zmbv_encoder_select="zlib"
1736
1737 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1738 vaapi_deps="va_va_h"
1739 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1740 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1741
1742 # parsers
1743 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1744 mpeg4video_parser_select="error_resilience mpegvideo"
1745 mpegvideo_parser_select="error_resilience mpegvideo"
1746 vc1_parser_select="error_resilience mpegvideo"
1747
1748 # external libraries
1749 libaacplus_encoder_deps="libaacplus"
1750 libcelt_decoder_deps="libcelt"
1751 libfaac_encoder_deps="libfaac"
1752 libfdk_aac_encoder_deps="libfdk_aac"
1753 libgsm_decoder_deps="libgsm"
1754 libgsm_encoder_deps="libgsm"
1755 libgsm_ms_decoder_deps="libgsm"
1756 libgsm_ms_encoder_deps="libgsm"
1757 libilbc_decoder_deps="libilbc"
1758 libilbc_encoder_deps="libilbc"
1759 libmodplug_demuxer_deps="libmodplug"
1760 libmp3lame_encoder_deps="libmp3lame"
1761 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1762 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1763 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1764 libopenjpeg_decoder_deps="libopenjpeg"
1765 libopenjpeg_encoder_deps="libopenjpeg"
1766 libopus_decoder_deps="libopus"
1767 libschroedinger_decoder_deps="libschroedinger"
1768 libschroedinger_encoder_deps="libschroedinger"
1769 libspeex_decoder_deps="libspeex"
1770 libspeex_encoder_deps="libspeex"
1771 libstagefright_h264_decoder_deps="libstagefright_h264"
1772 libtheora_encoder_deps="libtheora"
1773 libtwolame_encoder_deps="libtwolame"
1774 libvo_aacenc_encoder_deps="libvo_aacenc"
1775 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1776 libvorbis_decoder_deps="libvorbis"
1777 libvorbis_encoder_deps="libvorbis"
1778 libvpx_decoder_deps="libvpx"
1779 libvpx_encoder_deps="libvpx"
1780 libx264_encoder_deps="libx264"
1781 libx264rgb_encoder_deps="libx264"
1782 libxavs_encoder_deps="libxavs"
1783 libxvid_encoder_deps="libxvid"
1784 libutvideo_decoder_deps="libutvideo"
1785 libutvideo_encoder_deps="libutvideo"
1786
1787 # demuxers / muxers
1788 ac3_demuxer_select="ac3_parser"
1789 asf_stream_muxer_select="asf_muxer"
1790 avisynth_demuxer_deps="avisynth"
1791 dirac_demuxer_select="dirac_parser"
1792 eac3_demuxer_select="ac3_parser"
1793 flac_demuxer_select="flac_parser"
1794 ipod_muxer_select="mov_muxer"
1795 libnut_demuxer_deps="libnut"
1796 libnut_muxer_deps="libnut"
1797 matroska_audio_muxer_select="matroska_muxer"
1798 matroska_demuxer_suggest="zlib bzlib"
1799 mov_demuxer_suggest="zlib"
1800 mp3_demuxer_select="mpegaudio_parser"
1801 mp4_muxer_select="mov_muxer"
1802 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1803 mpegtsraw_demuxer_select="mpegts_demuxer"
1804 mxf_d10_muxer_select="mxf_muxer"
1805 ogg_demuxer_select="golomb"
1806 psp_muxer_select="mov_muxer"
1807 rtp_demuxer_select="sdp_demuxer"
1808 rtp_muxer_select="mpegvideo"
1809 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1810 rtsp_demuxer_select="http_protocol rtpdec"
1811 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1812 sap_demuxer_select="sdp_demuxer"
1813 sap_muxer_select="rtp_muxer rtp_protocol"
1814 sdp_demuxer_select="rtpdec"
1815 spdif_muxer_select="aac_parser"
1816 tg2_muxer_select="mov_muxer"
1817 tgp_muxer_select="mov_muxer"
1818 w64_demuxer_deps="wav_demuxer"
1819
1820 # indevs / outdevs
1821 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1822 alsa_outdev_deps="alsa_asoundlib_h"
1823 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1824 caca_outdev_deps="libcaca"
1825 dshow_indev_deps="IBaseFilter"
1826 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1827 dv1394_indev_deps="dv1394 dv_demuxer"
1828 fbdev_indev_deps="linux_fb_h"
1829 iec61883_indev_deps="libiec61883"
1830 jack_indev_deps="jack_jack_h sem_timedwait"
1831 lavfi_indev_deps="avfilter"
1832 libcdio_indev_deps="libcdio"
1833 libdc1394_indev_deps="libdc1394"
1834 libv4l2_indev_deps="libv4l2"
1835 openal_indev_deps="openal"
1836 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1837 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1838 pulse_indev_deps="libpulse"
1839 sdl_outdev_deps="sdl"
1840 sndio_indev_deps="sndio_h"
1841 sndio_outdev_deps="sndio_h"
1842 v4l_indev_deps="linux_videodev_h"
1843 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1844 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1845 vfwcap_indev_extralibs="-lavicap32"
1846 x11grab_indev_deps="x11grab"
1847
1848 # protocols
1849 bluray_protocol_deps="libbluray"
1850 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1851 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1852 ffrtmpcrypt_protocol_select="tcp_protocol"
1853 ffrtmphttp_protocol_deps="!librtmp_protocol"
1854 ffrtmphttp_protocol_select="http_protocol"
1855 gopher_protocol_deps="network"
1856 httpproxy_protocol_deps="network"
1857 httpproxy_protocol_select="tcp_protocol"
1858 http_protocol_deps="network"
1859 http_protocol_select="tcp_protocol"
1860 https_protocol_select="tls_protocol"
1861 librtmp_protocol_deps="librtmp"
1862 librtmpe_protocol_deps="librtmp"
1863 librtmps_protocol_deps="librtmp"
1864 librtmpt_protocol_deps="librtmp"
1865 librtmpte_protocol_deps="librtmp"
1866 mmsh_protocol_select="http_protocol"
1867 mmst_protocol_deps="network"
1868 rtmp_protocol_deps="!librtmp_protocol"
1869 rtmp_protocol_select="tcp_protocol"
1870 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1871 rtmps_protocol_deps="!librtmp_protocol"
1872 rtmps_protocol_select="tls_protocol"
1873 rtmpt_protocol_select="ffrtmphttp_protocol"
1874 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1875 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1876 rtp_protocol_select="udp_protocol"
1877 sctp_protocol_deps="network struct_sctp_event_subscribe"
1878 tcp_protocol_deps="network"
1879 tls_protocol_deps_any="openssl gnutls"
1880 tls_protocol_select="tcp_protocol"
1881 udp_protocol_deps="network"
1882
1883 # filters
1884 aconvert_filter_deps="swresample"
1885 amovie_filter_deps="avcodec avformat"
1886 aresample_filter_deps="swresample"
1887 ass_filter_deps="libass"
1888 asyncts_filter_deps="avresample"
1889 atempo_filter_deps="avcodec rdft"
1890 blackframe_filter_deps="gpl"
1891 boxblur_filter_deps="gpl"
1892 colormatrix_filter_deps="gpl"
1893 cropdetect_filter_deps="gpl"
1894 decimate_filter_deps="gpl avcodec"
1895 delogo_filter_deps="gpl"
1896 deshake_filter_deps="avcodec"
1897 drawtext_filter_deps="libfreetype"
1898 flite_filter_deps="libflite"
1899 frei0r_filter_deps="frei0r dlopen"
1900 frei0r_filter_extralibs='$ldl'
1901 frei0r_src_filter_deps="frei0r dlopen"
1902 frei0r_src_filter_extralibs='$ldl'
1903 hqdn3d_filter_deps="gpl"
1904 movie_filter_deps="avcodec avformat"
1905 mp_filter_deps="gpl avcodec swscale postproc"
1906 mptestsrc_filter_deps="gpl"
1907 negate_filter_deps="lut_filter"
1908 resample_filter_deps="avresample"
1909 ocv_filter_deps="libopencv"
1910 pan_filter_deps="swresample"
1911 removelogo_filter_deps="avcodec avformat swscale"
1912 scale_filter_deps="swscale"
1913 smartblur_filter_deps="gpl swscale"
1914 select_filter_deps="avcodec"
1915 showspectrum_filter_deps="avcodec"
1916 super2xsai_filter_deps="gpl"
1917 tinterlace_filter_deps="gpl"
1918 yadif_filter_deps="gpl"
1919
1920 # libraries
1921 avdevice_deps="avcodec avformat"
1922 avformat_deps="avcodec"
1923 postproc_deps="gpl"
1924
1925 # programs
1926 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1927 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
1928                setpts_filter null_filter anull_filter ffabuffersink_filter"
1929 ffplay_deps="avcodec avformat swscale swresample sdl"
1930 ffplay_select="ffbuffersink_filter rdft"
1931 ffprobe_deps="avcodec avformat"
1932 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1933 ffserver_extralibs='$ldl'
1934
1935 # documentation
1936 podpages_deps="perl"
1937 manpages_deps="perl pod2man"
1938 htmlpages_deps="texi2html"
1939 txtpages_deps="makeinfo"
1940 doc_deps_any="manpages htmlpages podpages txtpages"
1941
1942 # tests
1943 colormatrix1_test_deps="colormatrix_filter"
1944 colormatrix2_test_deps="colormatrix_filter"
1945 flashsv2_test_deps="zlib"
1946 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1947 mpng_test_deps="zlib"
1948 pp_test_deps="mp_filter"
1949 pp2_test_deps="mp_filter"
1950 pp3_test_deps="mp_filter"
1951 pp4_test_deps="mp_filter"
1952 pp5_test_deps="mp_filter"
1953 pp6_test_deps="mp_filter"
1954 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1955 zlib_test_deps="zlib"
1956 zmbv_test_deps="zlib"
1957
1958 test_deps(){
1959     suf1=$1
1960     suf2=$2
1961     shift 2
1962     for v; do
1963         dep=${v%=*}
1964         tests=${v#*=}
1965         for name in ${tests}; do
1966             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1967         done
1968     done
1969 }
1970
1971 test_deps _muxer _demuxer                                               \
1972     aiff                                                                \
1973     pcm_alaw=alaw                                                       \
1974     asf                                                                 \
1975     au                                                                  \
1976     avi                                                                 \
1977     dv=dv_fmt                                                           \
1978     ffm                                                                 \
1979     flv=flv_fmt                                                         \
1980     gxf                                                                 \
1981     matroska=mkv                                                        \
1982     mmf                                                                 \
1983     mov="mov ismv"                                                      \
1984     pcm_mulaw=mulaw                                                     \
1985     mxf="mxf mxf_d10"                                                   \
1986     nut                                                                 \
1987     ogg="ogg ogg_vp3"                                                   \
1988     rawvideo=pixfmt                                                     \
1989     rm                                                                  \
1990     swf                                                                 \
1991     mpegts=ts                                                           \
1992     voc                                                                 \
1993     wav                                                                 \
1994     yuv4mpegpipe=yuv4mpeg                                               \
1995
1996 # default parameters
1997
1998 logfile="config.log"
1999
2000 # installation paths
2001 prefix_default="/usr/local"
2002 bindir_default='${prefix}/bin'
2003 datadir_default='${prefix}/share/ffmpeg'
2004 incdir_default='${prefix}/include'
2005 libdir_default='${prefix}/lib'
2006 mandir_default='${prefix}/share/man'
2007 shlibdir_default="$libdir_default"
2008 postproc_version_default="current"
2009
2010 # toolchain
2011 ar_default="ar"
2012 cc_default="gcc"
2013 cxx_default="g++"
2014 host_cc_default="gcc"
2015 install="install"
2016 ln_s="ln -sf"
2017 nm_default="nm"
2018 objformat="elf"
2019 pkg_config_default=pkg-config
2020 ranlib="ranlib"
2021 strip_default="strip"
2022 yasmexe_default="yasm"
2023
2024 nm_opts='-g'
2025 nogas=":"
2026
2027 # machine
2028 arch_default=$(uname -m)
2029 cpu="generic"
2030
2031 # OS
2032 target_os_default=$(tolower $(uname -s))
2033 host_os=$target_os_default
2034
2035 # alternative libpostproc version
2036 ALT_PP_VER_MAJOR=51
2037 ALT_PP_VER_MINOR=2
2038 ALT_PP_VER_MICRO=101
2039 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2040
2041 # configurable options
2042 enable $PROGRAM_LIST
2043 enable $DOCUMENT_LIST
2044
2045 enable avcodec
2046 enable avdevice
2047 enable avfilter
2048 enable avformat
2049 enable avutil
2050 enable postproc
2051 enable stripping
2052 enable swresample
2053 enable swscale
2054
2055 enable asm
2056 enable debug
2057 enable doc
2058 enable network
2059 enable optimizations
2060 enable safe_bitstream_reader
2061 enable static
2062 enable swscale_alpha
2063
2064 # build settings
2065 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2066 FFSERVERLDFLAGS=-Wl,-E
2067 LIBPREF="lib"
2068 LIBSUF=".a"
2069 FULLNAME='$(NAME)$(BUILDSUF)'
2070 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2071 SLIBPREF="lib"
2072 SLIBSUF=".so"
2073 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2074 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2075 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2076 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2077 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2078 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2079
2080 asflags_filter=echo
2081 cflags_filter=echo
2082 ldflags_filter=echo
2083
2084 AS_C='-c'
2085 AS_O='-o $@'
2086 CC_C='-c'
2087 CC_E='-E -o $@'
2088 CC_O='-o $@'
2089 CXX_C='-c'
2090 CXX_O='-o $@'
2091 LD_O='-o $@'
2092 FORCE_INC="-include"
2093 LD_LIB='-l%'
2094 LD_PATH='-L'
2095 HOSTCC_C='-c'
2096 HOSTCC_O='-o $@'
2097 HOSTLD_O='-o $@'
2098
2099 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2100 host_libs='-lm'
2101 host_cflags_filter=echo
2102 host_ldflags_filter=echo
2103
2104 target_path='$(CURDIR)'
2105
2106 # since the object filename is not given with the -MM flag, the compiler
2107 # is only able to print the basename, and we must add the path ourselves
2108 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2109 DEPFLAGS='-MM'
2110
2111 # find source path
2112 if test -f configure; then
2113     source_path=.
2114 else
2115     source_path=$(cd $(dirname "$0"); pwd)
2116     echo "$source_path" | grep -q '[[:blank:]]' &&
2117         die "Out of tree builds are impossible with whitespace in source path."
2118     test -e "$source_path/config.h" &&
2119         die "Out of tree builds are impossible with config.h in source dir."
2120 fi
2121
2122 for v in "$@"; do
2123     r=${v#*=}
2124     l=${v%"$r"}
2125     r=$(sh_quote "$r")
2126     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2127 done
2128
2129 find_things(){
2130     thing=$1
2131     pattern=$2
2132     file=$source_path/$3
2133     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2134 }
2135
2136 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2137 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2138 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2139 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2140 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2141 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2142 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2143 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2144 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2145 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2146 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2147
2148 ALL_COMPONENTS="
2149     $BSF_LIST
2150     $DECODER_LIST
2151     $DEMUXER_LIST
2152     $ENCODER_LIST
2153     $FILTER_LIST
2154     $HWACCEL_LIST
2155     $INDEV_LIST
2156     $MUXER_LIST
2157     $OUTDEV_LIST
2158     $PARSER_LIST
2159     $PROTOCOL_LIST
2160 "
2161
2162 find_tests(){
2163     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2164 }
2165
2166 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2167 LAVF_TESTS=$(find_tests lavf)
2168 LAVFI_TESTS=$(find_tests lavfi)
2169 SEEK_TESTS=$(find_tests seek seek_)
2170
2171 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2172
2173 for n in $COMPONENT_LIST; do
2174     v=$(toupper ${n%s})_LIST
2175     eval enable \$$v
2176     eval ${n}_if_any="\$$v"
2177 done
2178
2179 enable $ARCH_EXT_LIST $ALL_TESTS
2180
2181 die_unknown(){
2182     echo "Unknown option \"$1\"."
2183     echo "See $0 --help for available options."
2184     exit 1
2185 }
2186
2187 show_list() {
2188     suffix=_$1
2189     shift
2190     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2191     exit 0
2192 }
2193
2194 rand_list(){
2195     IFS=', '
2196     set -- $*
2197     unset IFS
2198     for thing; do
2199         comp=${thing%:*}
2200         prob=${thing#$comp}
2201         prob=${prob#:}
2202         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2203         echo "prob ${prob:-0.5}"
2204         printf '%s\n' $comp
2205     done
2206 }
2207
2208 do_random(){
2209     action=$1
2210     shift
2211     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2212     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2213 }
2214
2215 for opt do
2216     optval="${opt#*=}"
2217     case "$opt" in
2218     --extra-ldflags=*) add_ldflags $optval
2219     ;;
2220     --extra-libs=*) add_extralibs $optval
2221     ;;
2222     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2223     ;;
2224     --enable-debug=*) debuglevel="$optval"
2225     ;;
2226     --disable-everything)
2227     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2228     ;;
2229     --enable-random|--disable-random)
2230     action=${opt%%-random}
2231     do_random ${action#--} $COMPONENT_LIST
2232     ;;
2233     --enable-random=*|--disable-random=*)
2234     action=${opt%%-random=*}
2235     do_random ${action#--} $optval
2236     ;;
2237     --enable-*=*|--disable-*=*)
2238     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2239     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2240     eval list=\$$(toupper $thing)_LIST
2241     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2242     $action $(filter "$name" $list)
2243     ;;
2244     --enable-?*|--disable-?*)
2245     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2246     if is_in $option $COMPONENT_LIST; then
2247         test $action = disable && action=unset
2248         eval $action \$$(toupper ${option%s})_LIST
2249     elif is_in $option $CMDLINE_SELECT; then
2250         $action $option
2251     else
2252         die_unknown $opt
2253     fi
2254     ;;
2255     --list-*)
2256         NAME="${opt#--list-}"
2257         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2258         NAME=${NAME%s}
2259         eval show_list $NAME \$$(toupper $NAME)_LIST
2260     ;;
2261     --help|-h) show_help
2262     ;;
2263     *)
2264     optname="${opt%%=*}"
2265     optname="${optname#--}"
2266     optname=$(echo "$optname" | sed 's/-/_/g')
2267     if is_in $optname $CMDLINE_SET; then
2268         eval $optname='$optval'
2269     elif is_in $optname $CMDLINE_APPEND; then
2270         append $optname "$optval"
2271     else
2272          die_unknown $opt
2273     fi
2274     ;;
2275     esac
2276 done
2277
2278 disabled logging && logfile=/dev/null
2279
2280 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2281 set >> $logfile
2282
2283 test -n "$cross_prefix" && enable cross_compile
2284
2285 if enabled cross_compile; then
2286     test -n "$arch" && test -n "$target_os" ||
2287         die "Must specify target arch and OS when cross-compiling"
2288 fi
2289
2290 set_default arch target_os postproc_version
2291
2292 # Check if we should build alternative libpostproc version instead of current
2293 if   test "$postproc_version" = $ALT_PP_VER; then
2294   LIBPOSTPROC_VERSION=$ALT_PP_VER
2295   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2296   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2297   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2298 elif test "$postproc_version" != current; then
2299   die "Invalid argument to --postproc-version. See --help output."
2300 fi
2301
2302 ar_default="${cross_prefix}${ar_default}"
2303 cc_default="${cross_prefix}${cc_default}"
2304 cxx_default="${cross_prefix}${cxx_default}"
2305 nm_default="${cross_prefix}${nm_default}"
2306 pkg_config_default="${cross_prefix}${pkg_config_default}"
2307 ranlib="${cross_prefix}${ranlib}"
2308 strip_default="${cross_prefix}${strip_default}"
2309
2310 sysinclude_default="${sysroot}/usr/include"
2311
2312 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2313 enabled cross_compile || host_cc_default=$cc
2314 set_default host_cc
2315
2316 if ! $pkg_config --version >/dev/null 2>&1; then
2317     warn "$pkg_config not found, library detection may fail."
2318     pkg_config=false
2319 fi
2320
2321 exesuf() {
2322     case $1 in
2323         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2324     esac
2325 }
2326
2327 EXESUF=$(exesuf $target_os)
2328 HOSTEXESUF=$(exesuf $host_os)
2329
2330 # set temporary file name
2331 : ${TMPDIR:=$TEMPDIR}
2332 : ${TMPDIR:=$TMP}
2333 : ${TMPDIR:=/tmp}
2334
2335 if ! check_cmd mktemp -u XXXXXX; then
2336     # simple replacement for missing mktemp
2337     # NOT SAFE FOR GENERAL USE
2338     mktemp(){
2339         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2340     }
2341 fi
2342
2343 tmpfile(){
2344     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2345         (set -C; exec > $tmp) 2>/dev/null ||
2346         die "Unable to create temporary file in $TMPDIR."
2347     append TMPFILES $tmp
2348     eval $1=$tmp
2349 }
2350
2351 trap 'rm -f -- $TMPFILES' EXIT
2352
2353 tmpfile TMPASM .asm
2354 tmpfile TMPC   .c
2355 tmpfile TMPCPP .cpp
2356 tmpfile TMPE   $EXESUF
2357 tmpfile TMPH   .h
2358 tmpfile TMPO   .o
2359 tmpfile TMPS   .S
2360 tmpfile TMPSH  .sh
2361 tmpfile TMPV   .ver
2362
2363 unset -f mktemp
2364
2365 chmod +x $TMPE
2366
2367 # make sure we can execute files in $TMPDIR
2368 cat > $TMPSH 2>> $logfile <<EOF
2369 #! /bin/sh
2370 EOF
2371 chmod +x $TMPSH >> $logfile 2>&1
2372 if ! $TMPSH >> $logfile 2>&1; then
2373     cat <<EOF
2374 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2375 variable to another directory and make sure that it is not mounted noexec.
2376 EOF
2377     die "Sanity test failed."
2378 fi
2379
2380 pgi_flags(){
2381     for flag; do
2382         case $flag in
2383             -fomit-frame-pointer) echo -Mnoframe ;;
2384             -g)                   echo -gopt ;;
2385             *)                    echo $flag ;;
2386         esac
2387     done
2388 }
2389
2390 suncc_flags(){
2391     for flag; do
2392         case $flag in
2393             -march=*|-mcpu=*)
2394                 case "${flag#*=}" in
2395                     native)                   echo -xtarget=native       ;;
2396                     v9|niagara)               echo -xarch=sparc          ;;
2397                     ultrasparc)               echo -xarch=sparcvis       ;;
2398                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2399                     i586|pentium)             echo -xchip=pentium        ;;
2400                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2401                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2402                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2403                     pentium4*)          echo -xtarget=pentium4           ;;
2404                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2405                     *-sse3)             echo -xarch=sse3                 ;;
2406                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2407                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2408                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2409                     k8|opteron|athlon64|athlon-fx)
2410                                               echo -xarch=sse2a          ;;
2411                     athlon*)                  echo -xarch=pentium_proa   ;;
2412                 esac
2413                 ;;
2414             -std=c99)             echo -xc99              ;;
2415             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2416             -fPIC)                echo -KPIC -xcode=pic32 ;;
2417             -W*,*)                echo $flag              ;;
2418             -f*-*|-W*)                                    ;;
2419             *)                    echo $flag              ;;
2420         esac
2421     done
2422 }
2423
2424 tms470_flags(){
2425     for flag; do
2426         case $flag in
2427             -march=*|-mcpu=*)
2428                 case "${flag#*=}" in
2429                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2430                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2431                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2432                     armv6*|arm11*)          echo -mv=6   ;;
2433                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2434                                             echo -mv=5e  ;;
2435                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2436                 esac
2437                 ;;
2438             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2439             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2440             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2441             -msoft-float)   echo --float_support=vfplib       ;;
2442             -O[0-3]|-mf=*)  echo $flag                        ;;
2443             -g)             echo -g -mn                       ;;
2444             -pds=*)         echo $flag                        ;;
2445             -D*|-I*)        echo $flag                        ;;
2446             --gcc|--abi=*)  echo $flag                        ;;
2447             -me)            echo $flag                        ;;
2448         esac
2449     done
2450 }
2451
2452 probe_cc(){
2453     pfx=$1
2454     _cc=$2
2455
2456     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2457     unset _ld_o _ldflags _ld_lib _ld_path
2458     unset _depflags _DEPCMD _DEPFLAGS
2459     _flags_filter=echo
2460
2461     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2462         _type=llvm_gcc
2463         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2464         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2465         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2466         _cflags_speed='-O3'
2467         _cflags_size='-Os'
2468     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2469         _type=gcc
2470         gcc_version=$($_cc --version | head -n1)
2471         gcc_basever=$($_cc -dumpversion)
2472         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2473         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2474         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2475         if ! $_cc -dumpversion | grep -q '^2\.'; then
2476             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2477         fi
2478         _cflags_speed='-O3'
2479         _cflags_size='-Os'
2480     elif $_cc --version 2>/dev/null | grep -q Intel; then
2481         _type=icc
2482         _ident=$($_cc --version | head -n1)
2483         _depflags='-MMD'
2484         _cflags_speed='-O3'
2485         _cflags_size='-Os'
2486         _cflags_noopt='-O1'
2487     elif $_cc -v 2>&1 | grep -q xlc; then
2488         _type=xlc
2489         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2490         _cflags_speed='-O5'
2491         _cflags_size='-O5 -qcompact'
2492     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2493         _type=ccc
2494         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2495         _DEPFLAGS='-M'
2496         debuglevel=3
2497         _ldflags='-Wl,-z,now' # calls to libots crash without this
2498         _cflags_speed='-fast'
2499         _cflags_size='-O1'
2500     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2501         test -d "$sysroot" || die "No valid sysroot specified."
2502         _type=armcc
2503         _ident=$($_cc --vsn | head -n1)
2504         armcc_conf="$PWD/armcc.conf"
2505         $_cc --arm_linux_configure                 \
2506              --arm_linux_config_file="$armcc_conf" \
2507              --configure_sysroot="$sysroot"        \
2508              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2509              die "Error creating armcc configuration file."
2510         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2511         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2512         as_default="${cross_prefix}gcc"
2513         _depflags='-MMD'
2514         _cflags_speed='-O3'
2515         _cflags_size='-Os'
2516     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2517         _type=tms470
2518         _ident=$($_cc -version | head -n1 | tr -s ' ')
2519         _flags='--gcc --abi=eabi -me'
2520         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2521         _cc_e='-ppl -fe=$@'
2522         _cc_o='-fe=$@'
2523         as_default="${cross_prefix}gcc"
2524         ld_default="${cross_prefix}gcc"
2525         _depflags='-ppa -ppd=$(@:.o=.d)'
2526         _cflags_speed='-O3 -mf=5'
2527         _cflags_size='-O3 -mf=2'
2528         _flags_filter=tms470_flags
2529     elif $_cc -v 2>&1 | grep -q clang; then
2530         _type=clang
2531         _ident=$($_cc --version | head -n1)
2532         _depflags='-MMD'
2533         _cflags_speed='-O3'
2534         _cflags_size='-Os'
2535     elif $_cc -V 2>&1 | grep -q Sun; then
2536         _type=suncc
2537         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2538         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2539         _DEPFLAGS='-xM1 -xc99'
2540         _ldflags='-std=c99'
2541         _cflags_speed='-O5'
2542         _cflags_size='-O5 -xspace'
2543         _flags_filter=suncc_flags
2544     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2545         _type=pathscale
2546         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2547         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2548         _cflags_speed='-O2'
2549         _cflags_size='-Os'
2550         _flags_filter='filter_out -Wdisabled-optimization'
2551     elif $_cc -v 2>&1 | grep -q Open64; then
2552         _type=open64
2553         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2554         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2555         _cflags_speed='-O2'
2556         _cflags_size='-Os'
2557         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2558     elif $_cc -V 2>&1 | grep -q Portland; then
2559         _type=pgi
2560         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2561         opt_common='-alias=ansi -Mlre -Mpre'
2562         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2563         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2564         _cflags_noopt="-O1"
2565         _flags_filter=pgi_flags
2566     fi
2567
2568     eval ${pfx}_type=\$_type
2569     eval ${pfx}_ident=\$_ident
2570 }
2571
2572 set_ccvars(){
2573     eval ${1}_C=\${_cc_c-\${${1}_C}}
2574     eval ${1}_E=\${_cc_e-\${${1}_E}}
2575     eval ${1}_O=\${_cc_o-\${${1}_O}}
2576
2577     if [ -n "$_depflags" ]; then
2578         eval ${1}_DEPFLAGS=\$_depflags
2579     else
2580         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2581         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2582         eval DEP${1}FLAGS=\$_flags
2583     fi
2584 }
2585
2586 probe_cc cc "$cc"
2587 cflags_filter=$_flags_filter
2588 cflags_speed=$_cflags_speed
2589 cflags_size=$_cflags_size
2590 cflags_noopt=$_cflags_noopt
2591 add_cflags $_flags $_cflags
2592 cc_ldflags=$_ldflags
2593 set_ccvars CC
2594
2595 probe_cc hostcc "$host_cc"
2596 host_cflags_filter=$_flags_filter
2597 add_host_cflags  $_flags $_cflags
2598 set_ccvars HOSTCC
2599
2600 test -n "$cc_type" && enable $cc_type ||
2601     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2602
2603 : ${as_default:=$cc}
2604 : ${dep_cc_default:=$cc}
2605 : ${ld_default:=$cc}
2606 : ${host_ld_default:=$host_cc}
2607 set_default ar as dep_cc ld host_ld
2608
2609 probe_cc as "$as"
2610 asflags_filter=$_flags_filter
2611 add_asflags $_flags $_cflags
2612 set_ccvars AS
2613
2614 probe_cc ld "$ld"
2615 ldflags_filter=$_flags_filter
2616 add_ldflags $_flags $_ldflags
2617 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2618 LD_O=${_ld_o-$LD_O}
2619 LD_LIB=${_ld_lib-$LD_LIB}
2620 LD_PATH=${_ld_path-$LD_PATH}
2621
2622 probe_cc hostld "$host_ld"
2623 host_ldflags_filter=$_flags_filter
2624 add_host_ldflags $_flags $_ldflags
2625 HOSTLD_O=${_ld_o-$HOSTLD_O}
2626
2627 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2628     probe_cc depcc "$dep_cc"
2629     CCDEP=${_DEPCMD:-$DEPCMD}
2630     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2631     DEPCCFLAGS=$_flags
2632 fi
2633
2634 add_cflags $extra_cflags
2635 add_cxxflags $extra_cxxflags
2636 add_asflags $extra_cflags
2637
2638 if test -n "$sysroot"; then
2639     case "$cc_type" in
2640         gcc|llvm_gcc|clang)
2641             add_cppflags --sysroot="$sysroot"
2642             add_ldflags --sysroot="$sysroot"
2643         ;;
2644         tms470)
2645             add_cppflags -I"$sysinclude"
2646             add_ldflags  --sysroot="$sysroot"
2647         ;;
2648     esac
2649 fi
2650
2651 if test "$cpu" = host; then
2652     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2653
2654     case "$cc_type" in
2655         gcc|llvm_gcc)
2656             check_native(){
2657                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2658                 sed -n "/cc1.*$1=/{
2659                             s/.*$1=\\([^ ]*\\).*/\\1/
2660                             p
2661                             q
2662                         }" $TMPE
2663             }
2664             cpu=$(check_native -march || check_native -mcpu)
2665         ;;
2666     esac
2667
2668     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2669 fi
2670
2671 # Deal with common $arch aliases
2672 case "$arch" in
2673     arm*|iPad*)
2674         arch="arm"
2675     ;;
2676     mips|mipsel|IP*)
2677         arch="mips"
2678     ;;
2679     mips64*)
2680         arch="mips"
2681         subarch="mips64"
2682     ;;
2683     parisc|hppa)
2684         arch="parisc"
2685     ;;
2686     parisc64|hppa64)
2687         arch="parisc"
2688         subarch="parisc64"
2689     ;;
2690     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2691         arch="ppc"
2692     ;;
2693     s390|s390x)
2694         arch="s390"
2695     ;;
2696     sh4|sh)
2697         arch="sh4"
2698     ;;
2699     sun4u|sparc64)
2700         arch="sparc"
2701         subarch="sparc64"
2702     ;;
2703     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2704         arch="x86"
2705     ;;
2706 esac
2707
2708 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2709 enable $arch
2710
2711 # Add processor-specific flags
2712 if test "$cpu" = generic; then
2713     : do nothing
2714 elif enabled ppc; then
2715
2716     case $(tolower $cpu) in
2717         601|ppc601|powerpc601)
2718             cpuflags="-mcpu=601"
2719             disable altivec
2720         ;;
2721         603*|ppc603*|powerpc603*)
2722             cpuflags="-mcpu=603"
2723             disable altivec
2724         ;;
2725         604*|ppc604*|powerpc604*)
2726             cpuflags="-mcpu=604"
2727             disable altivec
2728         ;;
2729         g3|75*|ppc75*|powerpc75*)
2730             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2731             disable altivec
2732         ;;
2733         g4|745*|ppc745*|powerpc745*)
2734             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2735         ;;
2736         74*|ppc74*|powerpc74*)
2737             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2738         ;;
2739         g5|970|ppc970|powerpc970)
2740             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2741         ;;
2742         power[3-7]*)
2743             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2744         ;;
2745         cell)
2746             cpuflags="-mcpu=cell"
2747             enable ldbrx
2748         ;;
2749         e500mc)
2750             cpuflags="-mcpu=e500mc"
2751             disable altivec
2752         ;;
2753         e500v2)
2754             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2755             disable altivec
2756         ;;
2757         e500)
2758             cpuflags="-mcpu=8540 -mhard-float"
2759             disable altivec
2760         ;;
2761     esac
2762
2763 elif enabled x86; then
2764
2765     case $cpu in
2766         i[345]86|pentium)
2767             cpuflags="-march=$cpu"
2768             disable mmx
2769         ;;
2770         # targets that do NOT support conditional mov (cmov)
2771         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2772             cpuflags="-march=$cpu"
2773             disable cmov
2774         ;;
2775         # targets that do support conditional mov (cmov)
2776         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2777             cpuflags="-march=$cpu"
2778             enable cmov
2779             enable fast_cmov
2780         ;;
2781         # targets that do support conditional mov but on which it's slow
2782         pentium4|pentium4m|prescott|nocona)
2783             cpuflags="-march=$cpu"
2784             enable cmov
2785             disable fast_cmov
2786         ;;
2787     esac
2788
2789 elif enabled sparc; then
2790
2791     case $cpu in
2792         niagara)
2793             cpuflags="-mcpu=$cpu"
2794             disable vis
2795         ;;
2796         sparc64)
2797             cpuflags="-mcpu=v9"
2798         ;;
2799     esac
2800
2801 elif enabled arm; then
2802
2803     case $cpu in
2804         armv*)
2805             cpuflags="-march=$cpu"
2806             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2807         ;;
2808         *)
2809             cpuflags="-mcpu=$cpu"
2810             case $cpu in
2811                 cortex-a*)                               subarch=armv7a  ;;
2812                 cortex-r*)                               subarch=armv7r  ;;
2813                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2814                 arm11*)                                  subarch=armv6   ;;
2815                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2816                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2817             esac
2818         ;;
2819     esac
2820
2821 elif enabled alpha; then
2822
2823     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2824
2825 elif enabled bfin; then
2826
2827     cpuflags="-mcpu=$cpu"
2828
2829 elif enabled mips; then
2830
2831     cpuflags="-march=$cpu"
2832
2833     case $cpu in
2834         24kc)
2835             disable mipsfpu
2836             disable mipsdspr1
2837             disable mipsdspr2
2838         ;;
2839         24kf*)
2840             disable mipsdspr1
2841             disable mipsdspr2
2842         ;;
2843         24kec|34kc|1004kc)
2844             disable mipsfpu
2845             disable mipsdspr2
2846         ;;
2847         24kef*|34kf*|1004kf*)
2848             disable mipsdspr2
2849         ;;
2850         74kc)
2851             disable mipsfpu
2852         ;;
2853     esac
2854
2855 elif enabled avr32; then
2856
2857     case $cpu in
2858         ap7[02]0[0-2])
2859             subarch="avr32_ap"
2860             cpuflags="-mpart=$cpu"
2861         ;;
2862         ap)
2863             subarch="avr32_ap"
2864             cpuflags="-march=$cpu"
2865         ;;
2866         uc3[ab]*)
2867             subarch="avr32_uc"
2868             cpuflags="-mcpu=$cpu"
2869         ;;
2870         uc)
2871             subarch="avr32_uc"
2872             cpuflags="-march=$cpu"
2873         ;;
2874     esac
2875
2876 fi
2877
2878 add_cflags $cpuflags
2879 add_asflags $cpuflags
2880
2881 # compiler sanity check
2882 check_exec <<EOF
2883 int main(void){ return 0; }
2884 EOF
2885 if test "$?" != 0; then
2886     echo "$cc is unable to create an executable file."
2887     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2888         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2889         echo "Only do this if you know what cross compiling means."
2890     fi
2891     die "C compiler test failed."
2892 fi
2893
2894 add_cppflags -D_ISOC99_SOURCE
2895 add_cxxflags -D__STDC_CONSTANT_MACROS
2896 check_cflags -std=c99
2897 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2898 #include <stdlib.h>
2899 EOF
2900 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2901 #include <stdlib.h>
2902 EOF
2903
2904 check_host_cflags -std=c99
2905 check_host_cflags -Wall
2906
2907 case "$arch" in
2908     alpha|ia64|mips|parisc|sparc)
2909         spic=$shared
2910     ;;
2911     x86)
2912         subarch="x86_32"
2913         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2914         if test "$subarch" = "x86_64"; then
2915             spic=$shared
2916         fi
2917     ;;
2918     ppc)
2919         check_cc <<EOF && subarch="ppc64"
2920         int test[(int)sizeof(char*) - 7];
2921 EOF
2922     ;;
2923 esac
2924
2925 enable $subarch
2926 enabled spic && enable pic
2927
2928 # OS specific
2929 case $target_os in
2930     haiku)
2931         prefix_default="/boot/common"
2932         network_extralibs="-lnetwork"
2933         host_libs=
2934         ;;
2935     sunos)
2936         FFSERVERLDFLAGS=""
2937         SHFLAGS='-shared -Wl,-h,$$(@F)'
2938         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2939         network_extralibs="-lsocket -lnsl"
2940         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2941         # When using suncc to build, the Solaris linker will mark
2942         # an executable with each instruction set encountered by
2943         # the Solaris assembler.  As our libraries contain their own
2944         # guards for processor-specific code, instead suppress
2945         # generation of the HWCAPS ELF section on Solaris x86 only.
2946         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2947         nm_opts='-P -g'
2948         ;;
2949     netbsd)
2950         disable symver
2951         oss_indev_extralibs="-lossaudio"
2952         oss_outdev_extralibs="-lossaudio"
2953         ;;
2954     openbsd|bitrig)
2955         # On OpenBSD 4.5. the compiler does not use PIC unless
2956         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2957         # however the generated executable will not do anything
2958         # (simply quits with exit-code 1, no crash, no output).
2959         # Thus explicitly enable PIC here.
2960         enable pic
2961         disable symver
2962         SHFLAGS='-shared'
2963         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2964         SLIB_INSTALL_LINKS=
2965         oss_indev_extralibs="-lossaudio"
2966         oss_outdev_extralibs="-lossaudio"
2967         ;;
2968     dragonfly)
2969         disable symver
2970         ;;
2971     freebsd)
2972         ;;
2973     bsd/os)
2974         add_extralibs -lpoll -lgnugetopt
2975         strip="strip -d"
2976         ;;
2977     darwin)
2978         gas="gas-preprocessor.pl $cc"
2979         enabled ppc && add_asflags -force_cpusubtype_ALL
2980         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2981         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2982         strip="${strip} -x"
2983         add_ldflags -Wl,-dynamic,-search_paths_first
2984         SLIBSUF=".dylib"
2985         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2986         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2987         FFSERVERLDFLAGS=-Wl,-bind_at_load
2988         objformat="macho"
2989         enabled x86_64 && objformat="macho64"
2990         enabled_any pic shared ||
2991             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2992         ;;
2993     mingw32*)
2994         if test $target_os = "mingw32ce"; then
2995             disable network
2996         else
2997             target_os=mingw32
2998         fi
2999         LIBTARGET=i386
3000         if enabled x86_64; then
3001             LIBTARGET="i386:x86-64"
3002         elif enabled arm; then
3003             LIBTARGET=arm-wince
3004         fi
3005         shlibdir_default="$bindir_default"
3006         SLIBPREF=""
3007         SLIBSUF=".dll"
3008         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3009         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3010         dlltool="${cross_prefix}dlltool"
3011         if check_cmd lib.exe -list; then
3012             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3013             if enabled x86_64; then
3014                 LIBTARGET=x64
3015             fi
3016         elif check_cmd $dlltool --version; then
3017             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3018         fi
3019         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3020         SLIB_INSTALL_LINKS=
3021         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3022         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3023         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3024         objformat="win32"
3025         enable dos_paths
3026         check_cflags -fno-common
3027         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
3028                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3029                 die "ERROR: MinGW runtime version must be >= 3.15."
3030         add_cppflags -U__STRICT_ANSI__
3031         ;;
3032     cygwin*)
3033         target_os=cygwin
3034         shlibdir_default="$bindir_default"
3035         SLIBPREF="cyg"
3036         SLIBSUF=".dll"
3037         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3038         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3039         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3040         SLIB_INSTALL_LINKS=
3041         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3042         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3043         objformat="win32"
3044         enable dos_paths
3045         check_cflags -fno-common
3046         add_cppflags -U__STRICT_ANSI__
3047         ;;
3048     *-dos|freedos|opendos)
3049         network_extralibs="-lsocket"
3050         objformat="coff"
3051         enable dos_paths
3052         add_cppflags -U__STRICT_ANSI__
3053         ;;
3054     linux)
3055         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3056         enable dv1394
3057         ;;
3058     irix*)
3059         target_os=irix
3060         ranlib="echo ignoring ranlib"
3061         ;;
3062     os/2*)
3063         strip="lxlite -CS"
3064         ln_s="cp -f"
3065         objformat="aout"
3066         add_cppflags -D_GNU_SOURCE
3067         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3068         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3069         FFSERVERLDFLAGS=""
3070         LIBSUF="_s.a"
3071         SLIBPREF=""
3072         SLIBSUF=".dll"
3073         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3074         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3075         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3076           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3077           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3078           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3079           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3080           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3081         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3082           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3083         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3084         enable dos_paths
3085         enable_weak os2threads
3086         ;;
3087     gnu/kfreebsd)
3088         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3089         ;;
3090     gnu)
3091         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3092         ;;
3093     qnx)
3094         add_cppflags -D_QNX_SOURCE
3095         network_extralibs="-lsocket"
3096         ;;
3097     symbian)
3098         SLIBSUF=".dll"
3099         enable dos_paths
3100         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3101         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3102         add_ldflags -Wl,--target1-abs,--no-undefined \
3103                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3104                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3105         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3106                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3107                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3108         ;;
3109     none)
3110         ;;
3111     *)
3112         die "Unknown OS '$target_os'."
3113         ;;
3114 esac
3115
3116 esc(){
3117     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3118 }
3119
3120 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3121
3122 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3123
3124 set_default $PATHS_LIST
3125
3126 # we need to build at least one lib type
3127 if ! enabled_any static shared; then
3128     cat <<EOF
3129 At least one library type must be built.
3130 Specify --enable-static to build the static libraries or --enable-shared to
3131 build the shared libraries as well. To only build the shared libraries specify
3132 --disable-static in addition to --enable-shared.
3133 EOF
3134     exit 1;
3135 fi
3136
3137 die_license_disabled() {
3138     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3139 }
3140
3141 die_license_disabled_gpl() {
3142     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3143 }
3144
3145 die_license_disabled gpl libcdio
3146 die_license_disabled gpl libutvideo
3147 die_license_disabled gpl libx264
3148 die_license_disabled gpl libxavs
3149 die_license_disabled gpl libxvid
3150 die_license_disabled gpl x11grab
3151
3152 die_license_disabled nonfree libaacplus
3153 die_license_disabled nonfree libfaac
3154 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3155 enabled gpl && die_license_disabled_gpl nonfree openssl
3156
3157 die_license_disabled version3 libopencore_amrnb
3158 die_license_disabled version3 libopencore_amrwb
3159 die_license_disabled version3 libvo_aacenc
3160 die_license_disabled version3 libvo_amrwbenc
3161
3162 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3163
3164 disabled optimizations || check_cflags -fomit-frame-pointer
3165
3166 enable_pic() {
3167     enable pic
3168     add_cppflags -DPIC
3169     add_cflags   -fPIC
3170     add_asflags  -fPIC
3171 }
3172
3173 enabled pic && enable_pic
3174
3175 check_cc <<EOF || die "Symbol mangling check failed."
3176 int ff_extern;
3177 EOF
3178 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3179 extern_prefix=${sym%%ff_extern*}
3180
3181 check_cc <<EOF && enable inline_asm
3182 void foo(void) { __asm__ volatile ("" ::); }
3183 EOF
3184
3185 _restrict=
3186 for restrict_keyword in restrict __restrict__ __restrict; do
3187     check_cc <<EOF && _restrict=$restrict_keyword && break
3188 void foo(char * $restrict_keyword p);
3189 EOF
3190 done
3191
3192 check_cc <<EOF && enable attribute_packed
3193 struct { int x; } __attribute__((packed)) x;
3194 EOF
3195
3196 check_cc <<EOF && enable attribute_may_alias
3197 union { int x; } __attribute__((may_alias)) x;
3198 EOF
3199
3200 check_cc <<EOF || die "endian test failed"
3201 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3202 EOF
3203 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3204
3205 if enabled alpha; then
3206
3207     check_cflags -mieee
3208
3209 elif enabled arm; then
3210
3211     enabled thumb && check_cflags -mthumb || check_cflags -marm
3212     nogas=die
3213
3214     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3215         enable vfp_args
3216     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3217         case "${cross_prefix:-$cc}" in
3218             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3219             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3220 __asm__ (".eabi_attribute 28, 1");
3221 int main(void) { return 0; }
3222 EOF
3223         esac
3224         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3225     fi
3226
3227     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3228     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3229     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3230     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3231     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3232     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3233
3234     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3235     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3236
3237     enabled_all armv6t2 shared !pic && enable_pic
3238
3239 elif enabled mips; then
3240
3241     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3242     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3243     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3244      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3245     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3246      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3247     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3248      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3249     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3250      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3251
3252 elif enabled ppc; then
3253
3254     enable local_aligned_8 local_aligned_16
3255
3256     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3257     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3258     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3259     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3260
3261     # AltiVec flags: The FSF version of GCC differs from the Apple version
3262     if enabled altivec; then
3263         nogas=warn
3264         check_cflags -maltivec -mabi=altivec &&
3265         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3266         check_cflags -faltivec
3267
3268         # check if our compiler supports Motorola AltiVec C API
3269         check_cc <<EOF || disable altivec
3270 $inc_altivec_h
3271 int main(void) {
3272     vector signed int v1 = (vector signed int) { 0 };
3273     vector signed int v2 = (vector signed int) { 1 };
3274     v1 = vec_add(v1, v2);
3275     return 0;
3276 }
3277 EOF
3278
3279         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3280     fi
3281
3282 elif enabled sparc; then
3283
3284     enabled vis &&
3285         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3286         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3287
3288 elif enabled x86; then
3289
3290     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3291     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3292     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3293     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3294
3295     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3296
3297     enable local_aligned_8 local_aligned_16
3298
3299     # check whether EBP is available on x86
3300     # As 'i' is stored on the stack, this program will crash
3301     # if the base pointer is used to access it because the
3302     # base pointer is cleared in the inline assembly code.
3303     check_exec_crash <<EOF && enable ebp_available
3304     volatile int i=0;
3305     __asm__ volatile (
3306         "xorl %%ebp, %%ebp"
3307     ::: "%ebp");
3308     return i;
3309 EOF
3310
3311     # check whether EBX is available on x86
3312     check_inline_asm ebx_available '""::"b"(0)' &&
3313         check_inline_asm ebx_available '"":::"%ebx"'
3314
3315     # check whether xmm clobbers are supported
3316     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3317
3318     # check whether binutils is new enough to compile SSSE3/MMXEXT
3319     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3320     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3321
3322     if ! disabled_any asm mmx yasm; then
3323         if check_cmd $yasmexe --version; then
3324             enabled x86_64 && yasm_extra="-m amd64"
3325             yasm_debug="-g dwarf2"
3326         elif check_cmd nasm -v; then
3327             yasmexe=nasm
3328             yasm_debug="-g -F dwarf"
3329             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3330         fi
3331
3332         YASMFLAGS="-f $objformat $yasm_extra"
3333         enabled pic               && append YASMFLAGS "-DPIC"
3334         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3335         case "$objformat" in
3336             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3337         esac
3338
3339         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3340             die "yasm not found, use --disable-yasm for a crippled build"
3341         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3342         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3343         check_yasm "CPU amdnop" && enable cpunop
3344     fi
3345
3346     case "$cpu" in
3347         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3348             disable fast_clz
3349         ;;
3350     esac
3351
3352 fi
3353
3354 if enabled asm; then
3355     as=${gas:=$as}
3356     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3357         $nogas "GNU assembler not found, install gas-preprocessor"
3358 fi
3359
3360 check_ldflags -Wl,--as-needed
3361
3362 if check_func dlopen; then
3363     ldl=
3364 elif check_func dlopen -ldl; then
3365     ldl=-ldl
3366 fi
3367
3368 if enabled network; then
3369     check_type "sys/types.h sys/socket.h" socklen_t
3370     check_type netdb.h "struct addrinfo"
3371     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3372     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3373     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3374     check_type netinet/in.h "struct sockaddr_in6"
3375     check_type poll.h "struct pollfd"
3376     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3377     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3378     check_type netinet/sctp.h "struct sctp_event_subscribe"
3379     check_func getaddrinfo $network_extralibs
3380     # Prefer arpa/inet.h over winsock2
3381     if check_header arpa/inet.h ; then
3382         check_func closesocket
3383     elif check_header winsock2.h ; then
3384         check_func_headers winsock2.h closesocket -lws2 &&
3385             network_extralibs="-lws2" ||
3386         { check_func_headers winsock2.h closesocket -lws2_32 &&
3387             network_extralibs="-lws2_32"; }
3388         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3389         check_type ws2tcpip.h socklen_t
3390         check_type ws2tcpip.h "struct addrinfo"
3391         check_type ws2tcpip.h "struct group_source_req"
3392         check_type ws2tcpip.h "struct ip_mreq_source"
3393         check_type ws2tcpip.h "struct ipv6_mreq"
3394         check_type winsock2.h "struct pollfd"
3395         check_type ws2tcpip.h "struct sockaddr_in6"
3396         check_type ws2tcpip.h "struct sockaddr_storage"
3397         check_struct winsock2.h "struct sockaddr" sa_len
3398     else
3399         disable network
3400     fi
3401 fi
3402
3403 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3404 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3405
3406 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3407 check_func  fcntl
3408 check_func  fork
3409 check_func  gethrtime
3410 check_func  getopt
3411 check_func  getrusage
3412 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3413 check_func  gettimeofday
3414 check_func  inet_aton $network_extralibs
3415 check_func  isatty
3416 check_func  localtime_r
3417 check_func  ${malloc_prefix}memalign            && enable memalign
3418 check_func  mkstemp
3419 check_func  mmap
3420 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3421 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3422 check_func  setrlimit
3423 check_func  snprintf
3424 check_func  strerror_r
3425 check_func  sched_getaffinity
3426 check_func  sysconf
3427 check_func  sysctl
3428 check_func  usleep
3429 check_func_headers conio.h kbhit
3430 check_func_headers windows.h PeekNamedPipe
3431 check_func_headers io.h setmode
3432 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3433 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3434 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3435 check_func_headers windows.h GetProcessAffinityMask
3436 check_func_headers windows.h GetProcessTimes
3437 check_func_headers windows.h GetSystemTimeAsFileTime
3438 check_func_headers windows.h MapViewOfFile
3439 check_func_headers windows.h Sleep
3440 check_func_headers windows.h VirtualAlloc
3441 check_func_headers glob.h glob
3442
3443 # Check for MSVCRT; it has a broken strtod() that can't parse some input.
3444 # Use old dos symbol to detect it. If we are on mingw, it already provides
3445 # its own replacement and we don't need to redo that.
3446 if check_func _get_doserrno; then
3447     if test $target_os != mingw32; then
3448         enable broken_strtod
3449     fi
3450 fi
3451
3452 check_header dlfcn.h
3453 check_header dxva.h
3454 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3455 check_header libcrystalhd/libcrystalhd_if.h
3456 check_header malloc.h
3457 check_header poll.h
3458 check_header sys/mman.h
3459 check_header sys/param.h
3460 check_header sys/resource.h
3461 check_header sys/select.h
3462 check_header sys/time.h
3463 check_header termios.h
3464 check_header unistd.h
3465 check_header vdpau/vdpau.h
3466 check_header vdpau/vdpau_x11.h
3467 check_header windows.h
3468 check_header X11/extensions/XvMClib.h
3469 check_header asm/types.h
3470
3471 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3472 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3473
3474 # check for VDA header
3475 if ! disabled vda; then
3476     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3477         enable vda
3478         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3479     fi
3480 fi
3481
3482 if ! disabled w32threads && ! enabled pthreads; then
3483     check_func _beginthreadex && enable w32threads
3484 fi
3485
3486 # check for some common methods of building with pthread support
3487 # do this before the optional library checks as some of them require pthreads
3488 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3489     enable pthreads
3490     if check_func pthread_create; then
3491         :
3492     elif check_func pthread_create -pthread; then
3493         add_cflags -pthread
3494         add_extralibs -pthread
3495     elif check_func pthread_create -pthreads; then
3496         add_cflags -pthreads
3497         add_extralibs -pthreads
3498     elif check_func pthread_create -lpthreadGC2; then
3499         add_extralibs -lpthreadGC2
3500     elif ! check_lib pthread.h pthread_create -lpthread; then
3501         disable pthreads
3502     fi
3503 fi
3504
3505 for thread in $THREADS_LIST; do
3506     if enabled $thread; then
3507         test -n "$thread_type" &&
3508             die "ERROR: Only one thread type must be selected." ||
3509             thread_type="$thread"
3510     fi
3511 done
3512
3513 if enabled pthreads; then
3514   check_func pthread_cancel
3515 fi
3516
3517 check_lib math.h sin -lm && LIBM="-lm"
3518 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3519 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3520
3521 check_mathfunc cbrtf
3522 check_mathfunc exp2
3523 check_mathfunc exp2f
3524 check_mathfunc isinf
3525 check_mathfunc isnan
3526 check_mathfunc llrint
3527 check_mathfunc llrintf
3528 check_mathfunc log2
3529 check_mathfunc log2f
3530 check_mathfunc lrint
3531 check_mathfunc lrintf
3532 check_mathfunc rint
3533 check_mathfunc round
3534 check_mathfunc roundf
3535 check_mathfunc trunc
3536 check_mathfunc truncf
3537
3538 # these are off by default, so fail if requested and not available
3539 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3540 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3541 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3542 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3543 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3544 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3545 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3546 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3547 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3548                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3549                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3550 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3551 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3552 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3553 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
3554 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3555 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3556 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3557 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3558 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3559 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3560 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3561 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3562 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3563 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3564 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3565 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3566 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3567 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3568 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3569 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3570 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3571     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3572     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3573 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3574 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3575                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3576                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3577 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3578 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3579 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3580 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3581 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3582 enabled libvpx     && {
3583     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3584                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3585     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3586                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3587 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3588                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3589                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3590 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3591 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3592 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3593                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3594                         die "ERROR: openal not found"; } &&
3595                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3596                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3597 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3598                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3599                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3600                         die "ERROR: openssl not found"; }
3601
3602 if enabled gnutls; then
3603     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3604     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3605 fi
3606
3607 # libdc1394 check
3608 if enabled libdc1394; then
3609     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3610         enable libdc1394_2; } ||
3611     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3612         enable libdc1394_1; } ||
3613     die "ERROR: No version of libdc1394 found "
3614 fi
3615
3616 SDL_CONFIG="${cross_prefix}sdl-config"
3617 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3618     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3619     enable sdl &&
3620     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3621 else
3622   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3623     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3624     sdl_libs=$("${SDL_CONFIG}" --libs)
3625     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3626     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3627     enable sdl &&
3628     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3629   fi
3630 fi
3631 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3632
3633 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3634 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3635 perl --version > /dev/null 2>&1 && enable perl || disable perl
3636 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3637
3638 check_header linux/fb.h
3639 check_header linux/videodev.h
3640 check_header linux/videodev2.h
3641 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3642
3643 check_header sys/videoio.h
3644
3645 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3646 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3647 # w32api 3.12 had it defined wrong
3648 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3649
3650 check_type "dshow.h" IBaseFilter
3651
3652 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3653 { check_header dev/bktr/ioctl_meteor.h &&
3654   check_header dev/bktr/ioctl_bt848.h; } ||
3655 { check_header machine/ioctl_meteor.h &&
3656   check_header machine/ioctl_bt848.h; } ||
3657 { check_header dev/video/meteor/ioctl_meteor.h &&
3658   check_header dev/video/bktr/ioctl_bt848.h; } ||
3659 check_header dev/ic/bt8xx.h
3660
3661 check_header sndio.h
3662 if check_struct sys/soundcard.h audio_buf_info bytes; then
3663     enable_safe sys/soundcard.h
3664 else
3665     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3666     #include <sys/soundcard.h>
3667     audio_buf_info abc;
3668 EOF
3669 fi
3670 check_header soundcard.h
3671
3672 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3673
3674 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3675     check_func jack_port_get_latency_range -ljack
3676
3677 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3678
3679 enabled libcdio &&
3680     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3681
3682 enabled x11grab                                           &&
3683 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3684 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3685 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3686
3687 if ! disabled vaapi; then
3688     check_lib va/va.h vaInitialize -lva && {
3689         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3690         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3691     } || disable vaapi
3692 fi
3693
3694 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3695 check_cpp_condition \
3696     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3697     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3698       disable vdpau; }
3699 fi
3700
3701 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3702 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3703 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"
3704
3705 # add some useful compiler flags if supported
3706 check_cflags -Wdeclaration-after-statement
3707 check_cflags -Wall
3708 check_cflags -Wno-parentheses
3709 check_cflags -Wno-switch
3710 check_cflags -Wno-format-zero-length
3711 check_cflags -Wdisabled-optimization
3712 check_cflags -Wpointer-arith
3713 check_cflags -Wredundant-decls
3714 check_cflags -Wno-pointer-sign
3715 check_cflags -Wwrite-strings
3716 check_cflags -Wtype-limits
3717 check_cflags -Wundef
3718 check_cflags -Wmissing-prototypes
3719 check_cflags -Wno-pointer-to-int-cast
3720 check_cflags -Wstrict-prototypes
3721 enabled extra_warnings && check_cflags -Winline
3722
3723 # add some linker flags
3724 check_ldflags -Wl,--warn-common
3725 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3726 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3727
3728 enabled xmm_clobber_test &&
3729     check_ldflags -Wl,--wrap,avcodec_open2              \
3730                   -Wl,--wrap,avcodec_decode_audio4      \
3731                   -Wl,--wrap,avcodec_decode_video2      \
3732                   -Wl,--wrap,avcodec_decode_subtitle2   \
3733                   -Wl,--wrap,avcodec_encode_audio2      \
3734                   -Wl,--wrap,avcodec_encode_video       \
3735                   -Wl,--wrap,avcodec_encode_subtitle    \
3736                   -Wl,--wrap,sws_scale ||
3737     disable xmm_clobber_test
3738
3739 echo "X{};" > $TMPV
3740 if test_ldflags -Wl,--version-script,$TMPV; then
3741     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3742     check_cc <<EOF && enable symver_asm_label
3743 void ff_foo(void) __asm__ ("av_foo@VERSION");
3744 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3745 EOF
3746     check_cc <<EOF && enable symver_gnu_asm
3747 __asm__(".symver ff_foo,av_foo@VERSION");
3748 void ff_foo(void) {}
3749 EOF
3750 fi
3751
3752 if [ -n "$optflags" ]; then
3753     add_cflags $optflags
3754 elif enabled small; then
3755     add_cflags $cflags_size
3756 elif enabled optimizations; then
3757     add_cflags $cflags_speed
3758 else
3759     add_cflags $cflags_noopt
3760 fi
3761 check_cflags -fno-math-errno
3762 check_cflags -fno-signed-zeros
3763 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3764 int x;
3765 EOF
3766
3767
3768 if enabled icc; then
3769     # Just warnings, no remarks
3770     check_cflags -w1
3771     # -wd: Disable following warnings
3772     # 144, 167, 556: -Wno-pointer-sign
3773     # 1292: attribute "foo" ignored
3774     # 1419: external declaration in primary source file
3775     # 10006: ignoring unknown option -fno-signed-zeros
3776     # 10148: ignoring unknown option -Wno-parentheses
3777     # 10156: ignoring option '-W'; no argument required
3778     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3779     # 11030: Warning unknown option --as-needed
3780     # 10156: ignoring option '-export'; no argument required
3781     check_ldflags -wd10156,11030
3782     # Allow to compile with optimizations
3783     check_ldflags -march=$cpu
3784     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3785     enable ebp_available
3786     if enabled x86_32; then
3787         icc_version=$($cc -dumpversion)
3788         test ${icc_version%%.*} -ge 11 &&
3789             check_cflags -falign-stack=maintain-16-byte ||
3790             disable aligned_stack
3791     fi
3792 elif enabled ccc; then
3793     # disable some annoying warnings
3794     add_cflags -msg_disable cvtu32to64
3795     add_cflags -msg_disable embedcomment
3796     add_cflags -msg_disable needconstext
3797     add_cflags -msg_disable nomainieee
3798     add_cflags -msg_disable ptrmismatch1
3799     add_cflags -msg_disable unreachcode
3800 elif enabled gcc; then
3801     check_cflags -fno-tree-vectorize
3802     check_cflags -Werror=implicit-function-declaration
3803     check_cflags -Werror=missing-prototypes
3804 elif enabled llvm_gcc; then
3805     check_cflags -mllvm -stack-alignment=16
3806 elif enabled clang; then
3807     check_cflags -mllvm -stack-alignment=16
3808     check_cflags -Qunused-arguments
3809 elif enabled armcc; then
3810     # 2523: use of inline assembler is deprecated
3811     add_cflags -W${armcc_opt},--diag_suppress=2523
3812     add_cflags -W${armcc_opt},--diag_suppress=1207
3813     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3814     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3815     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3816     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3817 elif enabled tms470; then
3818     add_cflags -pds=824 -pds=837
3819 elif enabled pathscale; then
3820     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3821 fi
3822
3823 # If a missing snprintf/broken strtod is detected, force-include headers
3824 # that override prototypes and define it to a prefixed one implemented in
3825 # libavutil. We do this at the end since -I flags aren't set in configure,
3826 # and any additional check_cflags() beyond here will thus fail (because
3827 # it can't find these files, because the -I$(srcdir) wasn't set).
3828 enabled snprintf || force_include compat/snprintf.h
3829 enabled broken_strtod && force_include compat/strtod.h
3830
3831 enabled_any $THREADS_LIST      && enable threads
3832
3833 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3834
3835 check_deps $CONFIG_LIST       \
3836            $CONFIG_EXTRA      \
3837            $HAVE_LIST         \
3838            $ALL_COMPONENTS    \
3839            $ALL_TESTS         \
3840
3841
3842 if test $target_os = "haiku"; then
3843     disable memalign
3844     disable posix_memalign
3845 fi
3846
3847 ! enabled_any memalign posix_memalign aligned_malloc &&
3848     enabled_any $need_memalign && enable memalign_hack
3849
3850 # add_dep lib dep
3851 # -> enable ${lib}_deps_${dep}
3852 # -> add $dep to ${lib}_deps only once
3853 add_dep() {
3854     lib=$1
3855     dep=$2
3856     enabled "${lib}_deps_${dep}" && return 0
3857     enable  "${lib}_deps_${dep}"
3858     prepend "${lib}_deps" $dep
3859 }
3860
3861 # merge deps lib components
3862 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3863 merge_deps() {
3864     lib=$1
3865     shift
3866     for comp in $*; do
3867         enabled $comp || continue
3868         eval "dep=\"\$${comp}_deps\""
3869         for d in $dep; do
3870             add_dep $lib $d
3871         done
3872     done
3873 }
3874
3875 merge_deps libavfilter $FILTER_LIST
3876
3877 echo "install prefix            $prefix"
3878 echo "source path               $source_path"
3879 echo "C compiler                $cc"
3880 echo "ARCH                      $arch ($cpu)"
3881 if test "$build_suffix" != ""; then
3882     echo "build suffix              $build_suffix"
3883 fi
3884 if test "$progs_suffix" != ""; then
3885     echo "progs suffix              $progs_suffix"
3886 fi
3887 if test "$extra_version" != ""; then
3888     echo "version string suffix     $extra_version"
3889 fi
3890 echo "big-endian                ${bigendian-no}"
3891 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3892 if enabled x86; then
3893     echo "${yasmexe}                      ${yasm-no}"
3894     echo "MMX enabled               ${mmx-no}"
3895     echo "MMXEXT enabled            ${mmxext-no}"
3896     echo "3DNow! enabled            ${amd3dnow-no}"
3897     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3898     echo "SSE enabled               ${sse-no}"
3899     echo "SSSE3 enabled             ${ssse3-no}"
3900     echo "AVX enabled               ${avx-no}"
3901     echo "FMA4 enabled              ${fma4-no}"
3902     echo "CMOV enabled              ${cmov-no}"
3903     echo "CMOV is fast              ${fast_cmov-no}"
3904     echo "EBX available             ${ebx_available-no}"
3905     echo "EBP available             ${ebp_available-no}"
3906 fi
3907 if enabled arm; then
3908     echo "ARMv5TE enabled           ${armv5te-no}"
3909     echo "ARMv6 enabled             ${armv6-no}"
3910     echo "ARMv6T2 enabled           ${armv6t2-no}"
3911     echo "ARM VFP enabled           ${armvfp-no}"
3912     echo "NEON enabled              ${neon-no}"
3913 fi
3914 if enabled mips; then
3915     echo "MMI enabled               ${mmi-no}"
3916     echo "MIPS FPU enabled          ${mipsfpu-no}"
3917     echo "MIPS32R2 enabled          ${mips32r2-no}"
3918     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3919     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3920 fi
3921 if enabled ppc; then
3922     echo "AltiVec enabled           ${altivec-no}"
3923     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3924     echo "dcbzl available           ${dcbzl-no}"
3925 fi
3926 if enabled sparc; then
3927     echo "VIS enabled               ${vis-no}"
3928 fi
3929 echo "debug symbols             ${debug-no}"
3930 echo "strip symbols             ${stripping-no}"
3931 echo "optimize for size         ${small-no}"
3932 echo "optimizations             ${optimizations-no}"
3933 echo "static                    ${static-no}"
3934 echo "shared                    ${shared-no}"
3935 echo "postprocessing support    ${postproc-no}"
3936 echo "new filter support        ${avfilter-no}"
3937 echo "network support           ${network-no}"
3938 echo "threading support         ${thread_type-no}"
3939 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3940 echo "SDL support               ${sdl-no}"
3941 echo "libdxva2 enabled          ${dxva2-no}"
3942 echo "libva enabled             ${vaapi-no}"
3943 echo "libvdpau enabled          ${vdpau-no}"
3944 echo "AVISynth enabled          ${avisynth-no}"
3945 echo "frei0r enabled            ${frei0r-no}"
3946 echo "gnutls enabled            ${gnutls-no}"
3947 echo "libaacplus enabled        ${libaacplus-no}"
3948 echo "libass enabled            ${libass-no}"
3949 echo "libcaca enabled           ${libcaca-no}"
3950 echo "libcdio support           ${libcdio-no}"
3951 echo "libcelt enabled           ${libcelt-no}"
3952 echo "libdc1394 support         ${libdc1394-no}"
3953 echo "libfaac enabled           ${libfaac-no}"
3954 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3955 echo "libgsm enabled            ${libgsm-no}"
3956 echo "libiec61883 support       ${libiec61883-no}"
3957 echo "libilbc enabled           ${libilbc-no}"
3958 echo "libmodplug enabled        ${libmodplug-no}"
3959 echo "libmp3lame enabled        ${libmp3lame-no}"
3960 echo "libnut enabled            ${libnut-no}"
3961 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3962 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3963 echo "libopencv support         ${libopencv-no}"
3964 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3965 echo "libopus enabled           ${libopus-no}"
3966 echo "libpulse enabled          ${libpulse-no}"
3967 echo "librtmp enabled           ${librtmp-no}"
3968 echo "libschroedinger enabled   ${libschroedinger-no}"
3969 echo "libspeex enabled          ${libspeex-no}"
3970 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3971 echo "libtheora enabled         ${libtheora-no}"
3972 echo "libtwolame enabled        ${libtwolame-no}"
3973 echo "libutvideo enabled        ${libutvideo-no}"
3974 echo "libv4l2 enabled           ${libv4l2-no}"
3975 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3976 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3977 echo "libvorbis enabled         ${libvorbis-no}"
3978 echo "libvpx enabled            ${libvpx-no}"
3979 echo "libx264 enabled           ${libx264-no}"
3980 echo "libxavs enabled           ${libxavs-no}"
3981 echo "libxvid enabled           ${libxvid-no}"
3982 echo "openal enabled            ${openal-no}"
3983 echo "openssl enabled           ${openssl-no}"
3984 echo "zlib enabled              ${zlib-no}"
3985 echo "bzlib enabled             ${bzlib-no}"
3986 echo "texi2html enabled         ${texi2html-no}"
3987 echo "perl enabled              ${perl-no}"
3988 echo "pod2man enabled           ${pod2man-no}"
3989 echo "makeinfo enabled          ${makeinfo-no}"
3990 test -n "$random_seed" &&
3991     echo "random seed               ${random_seed}"
3992 echo
3993
3994 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3995     echo "Enabled ${type}s:"
3996     eval list=\$$(toupper $type)_LIST
3997     print_enabled '_*' $list | sort | pr -r -3 -t
3998     echo
3999 done
4000
4001 license="LGPL version 2.1 or later"
4002 if enabled nonfree; then
4003     license="nonfree and unredistributable"
4004 elif enabled gplv3; then
4005     license="GPL version 3 or later"
4006 elif enabled lgplv3; then
4007     license="LGPL version 3 or later"
4008 elif enabled gpl; then
4009     license="GPL version 2 or later"
4010 fi
4011
4012 echo "License: $license"
4013
4014 echo "Creating config.mak and config.h..."
4015
4016 test -e Makefile || $ln_s "$source_path/Makefile" .
4017
4018 enabled stripping || strip="echo skipping strip"
4019
4020 config_files="$TMPH config.mak"
4021
4022 cat > config.mak <<EOF
4023 # Automatically generated by configure - do not modify!
4024 ifndef FFMPEG_CONFIG_MAK
4025 FFMPEG_CONFIG_MAK=1
4026 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4027 prefix=$prefix
4028 LIBDIR=\$(DESTDIR)$libdir
4029 SHLIBDIR=\$(DESTDIR)$shlibdir
4030 INCDIR=\$(DESTDIR)$incdir
4031 BINDIR=\$(DESTDIR)$bindir
4032 DATADIR=\$(DESTDIR)$datadir
4033 MANDIR=\$(DESTDIR)$mandir
4034 SRC_PATH=$source_path
4035 ifndef MAIN_MAKEFILE
4036 SRC_PATH:=\$(SRC_PATH:.%=..%)
4037 endif
4038 CC_IDENT=$cc_ident
4039 ARCH=$arch
4040 CC=$cc
4041 CXX=$cxx
4042 AS=$as
4043 LD=$ld
4044 DEPCC=$dep_cc
4045 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4046 DEPAS=$as
4047 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4048 YASM=$yasmexe
4049 DEPYASM=$yasmexe
4050 AR=$ar
4051 RANLIB=$ranlib
4052 CP=cp -p
4053 LN_S=$ln_s
4054 STRIP=$strip
4055 CPPFLAGS=$CPPFLAGS
4056 CFLAGS=$CFLAGS
4057 CXXFLAGS=$CXXFLAGS
4058 ASFLAGS=$ASFLAGS
4059 AS_C=$AS_C
4060 AS_O=$AS_O
4061 CC_C=$CC_C
4062 CC_O=$CC_O
4063 CXX_C=$CXX_C
4064 CXX_O=$CXX_O
4065 LD_O=$LD_O
4066 LD_LIB=$LD_LIB
4067 LD_PATH=$LD_PATH
4068 DLLTOOL=$dlltool
4069 LDFLAGS=$LDFLAGS
4070 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4071 SHFLAGS=$SHFLAGS
4072 YASMFLAGS=$YASMFLAGS
4073 BUILDSUF=$build_suffix
4074 PROGSSUF=$progs_suffix
4075 FULLNAME=$FULLNAME
4076 LIBPREF=$LIBPREF
4077 LIBSUF=$LIBSUF
4078 LIBNAME=$LIBNAME
4079 SLIBPREF=$SLIBPREF
4080 SLIBSUF=$SLIBSUF
4081 EXESUF=$EXESUF
4082 EXTRA_VERSION=$extra_version
4083 CCDEP=$CCDEP
4084 CXXDEP=$CXXDEP
4085 CCDEP_FLAGS=$CCDEP_FLAGS
4086 ASDEP=$ASDEP
4087 ASDEP_FLAGS=$ASDEP_FLAGS
4088 CC_DEPFLAGS=$CC_DEPFLAGS
4089 AS_DEPFLAGS=$AS_DEPFLAGS
4090 HOSTCC=$host_cc
4091 HOSTLD=$host_ld
4092 HOSTCFLAGS=$host_cflags
4093 HOSTEXESUF=$HOSTEXESUF
4094 HOSTLDFLAGS=$host_ldflags
4095 HOSTLIBS=$host_libs
4096 DEPHOSTCC=$host_cc
4097 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4098 HOSTCCDEP=$HOSTCCDEP
4099 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4100 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4101 HOSTCC_C=$HOSTCC_C
4102 HOSTCC_O=$HOSTCC_O
4103 HOSTLD_O=$HOSTLD_O
4104 TARGET_EXEC=$target_exec
4105 TARGET_PATH=$target_path
4106 LIBS-ffplay=$sdl_libs
4107 CFLAGS-ffplay=$sdl_cflags
4108 ZLIB=$($ldflags_filter -lz)
4109 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4110 EXTRALIBS=$extralibs
4111 INSTALL=$install
4112 LIBTARGET=${LIBTARGET}
4113 SLIBNAME=${SLIBNAME}
4114 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4115 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4116 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4117 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4118 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4119 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4120 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4121 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4122 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4123 NOREDZONE_FLAGS=$noredzone_flags
4124 EOF
4125
4126 get_version(){
4127     lcname=$1
4128     name=$(toupper $lcname)
4129     file=$source_path/$lcname/version.h
4130     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4131     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4132     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4133     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4134 }
4135
4136 get_version_old(){
4137     name=$1
4138     file=$source_path/$2
4139 # This condition will be removed when we stop supporting old libpostproc versions
4140 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4141     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4142     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4143 fi
4144     lcname=$(tolower $name)
4145     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4146     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4147 }
4148
4149 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4150 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4151
4152 get_version libavcodec
4153 get_version libavdevice
4154 get_version libavfilter
4155 get_version libavformat
4156 get_version libavresample
4157 get_version libavutil
4158 get_version libswscale
4159
4160 cat > $TMPH <<EOF
4161 /* Automatically generated by configure - do not modify! */
4162 #ifndef FFMPEG_CONFIG_H
4163 #define FFMPEG_CONFIG_H
4164 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4165 #define FFMPEG_LICENSE "$(c_escape $license)"
4166 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4167 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4168 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4169 #define av_restrict $_restrict
4170 #define EXTERN_PREFIX "${extern_prefix}"
4171 #define EXTERN_ASM ${extern_prefix}
4172 #define SLIBSUF "$SLIBSUF"
4173 #define HAVE_MMX2 HAVE_MMXEXT
4174 EOF
4175
4176 test -n "$assert_level" &&
4177     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4178
4179 test -n "$malloc_prefix" &&
4180     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4181
4182 if enabled yasm; then
4183     append config_files $TMPASM
4184     printf '' >$TMPASM
4185 fi
4186
4187 print_config ARCH_   "$config_files" $ARCH_LIST
4188 print_config HAVE_   "$config_files" $HAVE_LIST
4189 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4190                                      $CONFIG_EXTRA      \
4191                                      $ALL_COMPONENTS    \
4192
4193 cat >>config.mak <<EOF
4194 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4195 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4196 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4197 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4198 EOF
4199
4200 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4201 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4202
4203 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4204 cp_if_changed $TMPH config.h
4205 touch .config
4206
4207 enabled yasm && cp_if_changed $TMPASM config.asm
4208
4209 cat > $TMPH <<EOF
4210 /* Generated by ffconf */
4211 #ifndef AVUTIL_AVCONFIG_H
4212 #define AVUTIL_AVCONFIG_H
4213 EOF
4214
4215 test "$postproc_version" != current && cat >> $TMPH <<EOF
4216 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4217 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4218 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4219 EOF
4220
4221 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4222
4223 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4224
4225 cp_if_changed $TMPH libavutil/avconfig.h
4226
4227 test -n "$WARNINGS" && printf "\n$WARNINGS"
4228
4229 # build pkg-config files
4230
4231 pkgconfig_generate(){
4232 name=$1
4233 shortname=${name#lib}${build_suffix}
4234 comment=$2
4235 version=$3
4236 libs=$4
4237 requires=$5
4238 enabled ${name#lib} || return 0
4239 mkdir -p $name
4240 cat <<EOF > $name/$name.pc
4241 prefix=$prefix
4242 exec_prefix=\${prefix}
4243 libdir=$libdir
4244 includedir=$incdir
4245
4246 Name: $name
4247 Description: $comment
4248 Version: $version
4249 Requires: $(enabled shared || echo $requires)
4250 Requires.private: $(enabled shared && echo $requires)
4251 Conflicts:
4252 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4253 Libs.private: $(enabled shared && echo $libs)
4254 Cflags: -I\${includedir}
4255 EOF
4256
4257 mkdir -p doc/examples/pc-uninstalled
4258 includedir=${source_path}
4259 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4260 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4261 prefix=
4262 exec_prefix=
4263 libdir=\${pcfiledir}/../../../$name
4264 includedir=${includedir}
4265
4266 Name: $name
4267 Description: $comment
4268 Version: $version
4269 Requires: $requires
4270 Conflicts:
4271 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4272 Cflags: -I\${includedir}
4273 EOF
4274 }
4275
4276 libavfilter_pc_deps=""
4277 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4278 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4279 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4280 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4281 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4282 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4283
4284 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4285 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4286
4287 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4288 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4289 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4290 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4291 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4292 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4293 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4294 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4295 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"