Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 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     strptime
1363     struct_addrinfo
1364     struct_group_source_req
1365     struct_ip_mreq_source
1366     struct_ipv6_mreq
1367     struct_pollfd
1368     struct_rusage_ru_maxrss
1369     struct_sctp_event_subscribe
1370     struct_sockaddr_in6
1371     struct_sockaddr_sa_len
1372     struct_sockaddr_storage
1373     struct_v4l2_frmivalenum_discrete
1374     symver
1375     symver_asm_label
1376     symver_gnu_asm
1377     sysconf
1378     sysctl
1379     sys_mman_h
1380     sys_param_h
1381     sys_resource_h
1382     sys_select_h
1383     sys_soundcard_h
1384     sys_time_h
1385     sys_videoio_h
1386     termios_h
1387     texi2html
1388     threads
1389     trunc
1390     truncf
1391     unistd_h
1392     usleep
1393     vfp_args
1394     VirtualAlloc
1395     windows_h
1396     winsock2_h
1397     xform_asm
1398     xgetbv
1399     xmm_clobbers
1400     yasm
1401 "
1402
1403 # options emitted with CONFIG_ prefix but not available on command line
1404 CONFIG_EXTRA="
1405     aandcttables
1406     ac3dsp
1407     avutil
1408     error_resilience
1409     gcrypt
1410     golomb
1411     gplv3
1412     h264chroma
1413     h264dsp
1414     h264pred
1415     h264qpel
1416     huffman
1417     lgplv3
1418     lpc
1419     mpegaudiodsp
1420     mpegvideo
1421     mpegvideoenc
1422     nettle
1423     rangecoder
1424     rtpdec
1425     sinewin
1426     vp3dsp
1427 "
1428
1429 CMDLINE_SELECT="
1430     $ARCH_EXT_LIST
1431     $CONFIG_LIST
1432     $THREADS_LIST
1433     asm
1434     coverage
1435     cross_compile
1436     debug
1437     extra_warnings
1438     logging
1439     optimizations
1440     stripping
1441     symver
1442     yasm
1443 "
1444
1445 PATHS_LIST='
1446     bindir
1447     datadir
1448     incdir
1449     libdir
1450     mandir
1451     prefix
1452     shlibdir
1453 '
1454
1455 CMDLINE_SET="
1456     $PATHS_LIST
1457     ar
1458     arch
1459     as
1460     assert_level
1461     build_suffix
1462     cc
1463     cpu
1464     cross_prefix
1465     cxx
1466     dep_cc
1467     extra_version
1468     host_cc
1469     host_cflags
1470     host_ld
1471     host_ldflags
1472     host_libs
1473     host_os
1474     install
1475     ld
1476     logfile
1477     malloc_prefix
1478     nm
1479     optflags
1480     pkg_config
1481     postproc_version
1482     progs_suffix
1483     random_seed
1484     samples
1485     strip
1486     sysinclude
1487     sysroot
1488     target_exec
1489     target_os
1490     target_path
1491     valgrind
1492     yasmexe
1493 "
1494
1495 CMDLINE_APPEND="
1496     extra_cflags
1497     extra_cxxflags
1498 "
1499
1500 # code dependency declarations
1501
1502 # architecture extensions
1503
1504 armv5te_deps="arm"
1505 armv6_deps="arm"
1506 armv6t2_deps="arm"
1507 armvfp_deps="arm"
1508 neon_deps="arm"
1509 vfpv3_deps="armvfp"
1510
1511 mipsfpu_deps="mips"
1512 mips32r2_deps="mips"
1513 mipsdspr1_deps="mips"
1514 mipsdspr2_deps="mips"
1515 mmi_deps="mips"
1516
1517 altivec_deps="ppc"
1518 ppc4xx_deps="ppc"
1519
1520 vis_deps="sparc"
1521
1522 x86_64_suggest="cmov fast_cmov"
1523
1524 amd3dnow_deps="mmx"
1525 amd3dnowext_deps="amd3dnow"
1526 mmx_deps="x86"
1527 mmxext_deps="mmx"
1528 sse_deps="mmxext"
1529 sse2_deps="sse"
1530 sse3_deps="sse2"
1531 ssse3_deps="sse3"
1532 sse4_deps="ssse3"
1533 sse42_deps="sse4"
1534 avx_deps="sse42"
1535 fma4_deps="avx"
1536
1537 mmx_external_deps="yasm"
1538 mmx_inline_deps="inline_asm"
1539 mmx_suggest="mmx_external mmx_inline"
1540
1541 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1542     eval dep=\$${ext}_deps
1543     eval ${ext}_external_deps='"${dep}_external"'
1544     eval ${ext}_inline_deps='"${dep}_inline"'
1545     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1546 done
1547
1548 aligned_stack_if_any="ppc x86"
1549 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1550 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1551 fast_unaligned_if_any="armv6 ppc x86"
1552
1553 inline_asm_deps="!tms470"
1554 need_memalign="altivec neon sse"
1555
1556 symver_if_any="symver_asm_label symver_gnu_asm"
1557
1558 # subsystems
1559 dct_select="rdft"
1560 mdct_select="fft"
1561 rdft_select="fft"
1562 mpegaudiodsp_select="dct"
1563 mpegvideoenc_select="mpegvideo"
1564
1565 # decoders / encoders / hardware accelerators
1566 aac_decoder_select="mdct sinewin"
1567 aac_encoder_select="mdct sinewin"
1568 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1569 ac3_decoder_select="mdct ac3dsp ac3_parser"
1570 ac3_encoder_select="mdct ac3dsp"
1571 ac3_fixed_encoder_select="mdct ac3dsp"
1572 alac_encoder_select="lpc"
1573 amrnb_decoder_select="lsp"
1574 amrwb_decoder_select="lsp"
1575 amv_encoder_select="aandcttables"
1576 atrac1_decoder_select="mdct sinewin"
1577 atrac3_decoder_select="mdct"
1578 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1579 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1580 cavs_decoder_select="golomb mpegvideo"
1581 cook_decoder_select="mdct sinewin"
1582 cscd_decoder_suggest="zlib"
1583 dca_decoder_select="mdct"
1584 dirac_decoder_select="dwt golomb"
1585 dnxhd_encoder_select="aandcttables mpegvideoenc"
1586 dxa_decoder_select="zlib"
1587 eac3_decoder_select="ac3_decoder"
1588 eac3_encoder_select="ac3_encoder"
1589 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1590 eatgq_decoder_select="aandcttables"
1591 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1592 exr_decoder_select="zlib"
1593 ffv1_decoder_select="golomb rangecoder"
1594 ffv1_encoder_select="rangecoder"
1595 ffvhuff_encoder_select="huffman"
1596 flac_decoder_select="golomb"
1597 flac_encoder_select="golomb lpc"
1598 flashsv_decoder_select="zlib"
1599 flashsv_encoder_select="zlib"
1600 flashsv2_encoder_select="zlib"
1601 flashsv2_decoder_select="zlib"
1602 flv_decoder_select="h263_decoder"
1603 flv_encoder_select="h263_encoder"
1604 fraps_decoder_select="huffman"
1605 h261_decoder_select="error_resilience mpegvideo"
1606 h261_encoder_select="aandcttables mpegvideoenc"
1607 h263_decoder_select="error_resilience h263_parser mpegvideo"
1608 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1609 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1610 h263i_decoder_select="h263_decoder"
1611 h263p_encoder_select="h263_encoder"
1612 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1613 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1614 h264_dxva2_hwaccel_deps="dxva2api_h"
1615 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1616 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1617 h264_vda_decoder_select="vda h264_parser h264_decoder"
1618 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1619 h264_vda_hwaccel_select="vda h264_decoder"
1620 h264_vdpau_decoder_select="vdpau h264_decoder"
1621 huffyuv_encoder_select="huffman"
1622 iac_decoder_select="fft mdct sinewin"
1623 imc_decoder_select="fft mdct sinewin"
1624 jpegls_decoder_select="golomb"
1625 jpegls_encoder_select="golomb"
1626 ljpeg_encoder_select="aandcttables mpegvideoenc"
1627 loco_decoder_select="golomb"
1628 mdec_decoder_select="error_resilience mpegvideo"
1629 mjpeg_encoder_select="aandcttables mpegvideoenc"
1630 mlp_decoder_select="mlp_parser"
1631 mp1_decoder_select="mpegaudiodsp"
1632 mp1float_decoder_select="mpegaudiodsp"
1633 mp2_decoder_select="mpegaudiodsp"
1634 mp2float_decoder_select="mpegaudiodsp"
1635 mp3_decoder_select="mpegaudiodsp"
1636 mp3adu_decoder_select="mpegaudiodsp"
1637 mp3adufloat_decoder_select="mpegaudiodsp"
1638 mp3float_decoder_select="mpegaudiodsp"
1639 mp3on4_decoder_select="mpegaudiodsp"
1640 mp3on4float_decoder_select="mpegaudiodsp"
1641 mpc7_decoder_select="mpegaudiodsp"
1642 mpc8_decoder_select="mpegaudiodsp"
1643 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1644 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1645 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1646 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1647 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1648 mpeg1video_decoder_select="error_resilience mpegvideo"
1649 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1650 mpeg2_crystalhd_decoder_select="crystalhd"
1651 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1652 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1653 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1654 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1655 mpeg2video_decoder_select="error_resilience mpegvideo"
1656 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1657 mpeg4_crystalhd_decoder_select="crystalhd"
1658 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1659 mpeg4_encoder_select="h263_encoder"
1660 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1661 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1662 msmpeg4_crystalhd_decoder_select="crystalhd"
1663 msmpeg4v1_decoder_select="h263_decoder"
1664 msmpeg4v1_encoder_select="h263_encoder"
1665 msmpeg4v2_decoder_select="h263_decoder"
1666 msmpeg4v2_encoder_select="h263_encoder"
1667 msmpeg4v3_decoder_select="h263_decoder"
1668 msmpeg4v3_encoder_select="h263_encoder"
1669 mss2_decoder_select="vc1_decoder"
1670 nellymoser_decoder_select="mdct sinewin"
1671 nellymoser_encoder_select="mdct sinewin"
1672 png_decoder_select="zlib"
1673 png_encoder_select="zlib"
1674 qcelp_decoder_select="lsp"
1675 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1676 ra_144_encoder_select="lpc"
1677 ralf_decoder_select="golomb"
1678 rv10_decoder_select="h263_decoder"
1679 rv10_encoder_select="h263_encoder"
1680 rv20_decoder_select="h263_decoder"
1681 rv20_encoder_select="h263_encoder"
1682 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1683 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1684 shorten_decoder_select="golomb"
1685 sipr_decoder_select="lsp"
1686 snow_decoder_select="dwt rangecoder"
1687 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1688 sonic_decoder_select="golomb"
1689 sonic_encoder_select="golomb"
1690 sonic_ls_encoder_select="golomb"
1691 svq1_decoder_select="error_resilience mpegvideo"
1692 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1693 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1694 svq3_decoder_suggest="zlib"
1695 theora_decoder_select="vp3_decoder"
1696 tiff_decoder_suggest="zlib"
1697 tiff_encoder_suggest="zlib"
1698 tscc_decoder_select="zlib"
1699 twinvq_decoder_select="mdct lsp sinewin"
1700 utvideo_encoder_select="huffman"
1701 vc1_crystalhd_decoder_select="crystalhd"
1702 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1703 vc1_dxva2_hwaccel_deps="dxva2api_h"
1704 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1705 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1706 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1707 vc1image_decoder_select="vc1_decoder"
1708 vorbis_decoder_select="mdct"
1709 vorbis_encoder_select="mdct"
1710 vp3_decoder_select="vp3dsp"
1711 vp5_decoder_select="vp3dsp"
1712 vp6_decoder_select="huffman vp3dsp"
1713 vp6a_decoder_select="vp6_decoder"
1714 vp6f_decoder_select="vp6_decoder"
1715 vp8_decoder_select="h264pred h264qpel"
1716 wmapro_decoder_select="mdct sinewin"
1717 wmav1_decoder_select="mdct sinewin"
1718 wmav1_encoder_select="mdct sinewin"
1719 wmav2_decoder_select="mdct sinewin"
1720 wmav2_encoder_select="mdct sinewin"
1721 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1722 wmv1_decoder_select="h263_decoder"
1723 wmv1_encoder_select="h263_encoder"
1724 wmv2_decoder_select="h263_decoder"
1725 wmv2_encoder_select="h263_encoder"
1726 wmv3_decoder_select="vc1_decoder"
1727 wmv3_crystalhd_decoder_select="crystalhd"
1728 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1729 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1730 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1731 wmv3image_decoder_select="wmv3_decoder"
1732 zerocodec_decoder_select="zlib"
1733 zlib_decoder_select="zlib"
1734 zlib_encoder_select="zlib"
1735 zmbv_decoder_select="zlib"
1736 zmbv_encoder_select="zlib"
1737
1738 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1739 vaapi_deps="va_va_h"
1740 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1741 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1742
1743 # parsers
1744 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1745 mpeg4video_parser_select="error_resilience mpegvideo"
1746 mpegvideo_parser_select="error_resilience mpegvideo"
1747 vc1_parser_select="error_resilience mpegvideo"
1748
1749 # external libraries
1750 libaacplus_encoder_deps="libaacplus"
1751 libcelt_decoder_deps="libcelt"
1752 libfaac_encoder_deps="libfaac"
1753 libfdk_aac_encoder_deps="libfdk_aac"
1754 libgsm_decoder_deps="libgsm"
1755 libgsm_encoder_deps="libgsm"
1756 libgsm_ms_decoder_deps="libgsm"
1757 libgsm_ms_encoder_deps="libgsm"
1758 libilbc_decoder_deps="libilbc"
1759 libilbc_encoder_deps="libilbc"
1760 libmodplug_demuxer_deps="libmodplug"
1761 libmp3lame_encoder_deps="libmp3lame"
1762 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1763 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1764 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1765 libopenjpeg_decoder_deps="libopenjpeg"
1766 libopenjpeg_encoder_deps="libopenjpeg"
1767 libopus_decoder_deps="libopus"
1768 libschroedinger_decoder_deps="libschroedinger"
1769 libschroedinger_encoder_deps="libschroedinger"
1770 libspeex_decoder_deps="libspeex"
1771 libspeex_encoder_deps="libspeex"
1772 libstagefright_h264_decoder_deps="libstagefright_h264"
1773 libtheora_encoder_deps="libtheora"
1774 libtwolame_encoder_deps="libtwolame"
1775 libvo_aacenc_encoder_deps="libvo_aacenc"
1776 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1777 libvorbis_decoder_deps="libvorbis"
1778 libvorbis_encoder_deps="libvorbis"
1779 libvpx_decoder_deps="libvpx"
1780 libvpx_encoder_deps="libvpx"
1781 libx264_encoder_deps="libx264"
1782 libx264rgb_encoder_deps="libx264"
1783 libxavs_encoder_deps="libxavs"
1784 libxvid_encoder_deps="libxvid"
1785 libutvideo_decoder_deps="libutvideo"
1786 libutvideo_encoder_deps="libutvideo"
1787
1788 # demuxers / muxers
1789 ac3_demuxer_select="ac3_parser"
1790 asf_stream_muxer_select="asf_muxer"
1791 avisynth_demuxer_deps="avisynth"
1792 dirac_demuxer_select="dirac_parser"
1793 eac3_demuxer_select="ac3_parser"
1794 flac_demuxer_select="flac_parser"
1795 ipod_muxer_select="mov_muxer"
1796 libnut_demuxer_deps="libnut"
1797 libnut_muxer_deps="libnut"
1798 matroska_audio_muxer_select="matroska_muxer"
1799 matroska_demuxer_suggest="zlib bzlib"
1800 mov_demuxer_suggest="zlib"
1801 mp3_demuxer_select="mpegaudio_parser"
1802 mp4_muxer_select="mov_muxer"
1803 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1804 mpegtsraw_demuxer_select="mpegts_demuxer"
1805 mxf_d10_muxer_select="mxf_muxer"
1806 ogg_demuxer_select="golomb"
1807 psp_muxer_select="mov_muxer"
1808 rtp_demuxer_select="sdp_demuxer"
1809 rtp_muxer_select="mpegvideo"
1810 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1811 rtsp_demuxer_select="http_protocol rtpdec"
1812 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1813 sap_demuxer_select="sdp_demuxer"
1814 sap_muxer_select="rtp_muxer rtp_protocol"
1815 sdp_demuxer_select="rtpdec"
1816 spdif_muxer_select="aac_parser"
1817 tg2_muxer_select="mov_muxer"
1818 tgp_muxer_select="mov_muxer"
1819 w64_demuxer_deps="wav_demuxer"
1820
1821 # indevs / outdevs
1822 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1823 alsa_outdev_deps="alsa_asoundlib_h"
1824 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1825 caca_outdev_deps="libcaca"
1826 dshow_indev_deps="IBaseFilter"
1827 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1828 dv1394_indev_deps="dv1394 dv_demuxer"
1829 fbdev_indev_deps="linux_fb_h"
1830 iec61883_indev_deps="libiec61883"
1831 jack_indev_deps="jack_jack_h sem_timedwait"
1832 lavfi_indev_deps="avfilter"
1833 libcdio_indev_deps="libcdio"
1834 libdc1394_indev_deps="libdc1394"
1835 libv4l2_indev_deps="libv4l2"
1836 openal_indev_deps="openal"
1837 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1838 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1839 pulse_indev_deps="libpulse"
1840 sdl_outdev_deps="sdl"
1841 sndio_indev_deps="sndio_h"
1842 sndio_outdev_deps="sndio_h"
1843 v4l_indev_deps="linux_videodev_h"
1844 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1845 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1846 vfwcap_indev_extralibs="-lavicap32"
1847 x11grab_indev_deps="x11grab"
1848
1849 # protocols
1850 bluray_protocol_deps="libbluray"
1851 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1852 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1853 ffrtmpcrypt_protocol_select="tcp_protocol"
1854 ffrtmphttp_protocol_deps="!librtmp_protocol"
1855 ffrtmphttp_protocol_select="http_protocol"
1856 gopher_protocol_deps="network"
1857 httpproxy_protocol_deps="network"
1858 httpproxy_protocol_select="tcp_protocol"
1859 http_protocol_deps="network"
1860 http_protocol_select="tcp_protocol"
1861 https_protocol_select="tls_protocol"
1862 librtmp_protocol_deps="librtmp"
1863 librtmpe_protocol_deps="librtmp"
1864 librtmps_protocol_deps="librtmp"
1865 librtmpt_protocol_deps="librtmp"
1866 librtmpte_protocol_deps="librtmp"
1867 mmsh_protocol_select="http_protocol"
1868 mmst_protocol_deps="network"
1869 rtmp_protocol_deps="!librtmp_protocol"
1870 rtmp_protocol_select="tcp_protocol"
1871 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1872 rtmps_protocol_deps="!librtmp_protocol"
1873 rtmps_protocol_select="tls_protocol"
1874 rtmpt_protocol_select="ffrtmphttp_protocol"
1875 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1876 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1877 rtp_protocol_select="udp_protocol"
1878 sctp_protocol_deps="network struct_sctp_event_subscribe"
1879 tcp_protocol_deps="network"
1880 tls_protocol_deps_any="openssl gnutls"
1881 tls_protocol_select="tcp_protocol"
1882 udp_protocol_deps="network"
1883
1884 # filters
1885 aconvert_filter_deps="swresample"
1886 amovie_filter_deps="avcodec avformat"
1887 aresample_filter_deps="swresample"
1888 ass_filter_deps="libass"
1889 asyncts_filter_deps="avresample"
1890 atempo_filter_deps="avcodec rdft"
1891 blackframe_filter_deps="gpl"
1892 boxblur_filter_deps="gpl"
1893 colormatrix_filter_deps="gpl"
1894 cropdetect_filter_deps="gpl"
1895 decimate_filter_deps="gpl avcodec"
1896 delogo_filter_deps="gpl"
1897 deshake_filter_deps="avcodec"
1898 drawtext_filter_deps="libfreetype"
1899 flite_filter_deps="libflite"
1900 frei0r_filter_deps="frei0r dlopen"
1901 frei0r_filter_extralibs='$ldl'
1902 frei0r_src_filter_deps="frei0r dlopen"
1903 frei0r_src_filter_extralibs='$ldl'
1904 hqdn3d_filter_deps="gpl"
1905 movie_filter_deps="avcodec avformat"
1906 mp_filter_deps="gpl avcodec swscale postproc"
1907 mptestsrc_filter_deps="gpl"
1908 negate_filter_deps="lut_filter"
1909 resample_filter_deps="avresample"
1910 ocv_filter_deps="libopencv"
1911 pan_filter_deps="swresample"
1912 removelogo_filter_deps="avcodec avformat swscale"
1913 scale_filter_deps="swscale"
1914 smartblur_filter_deps="gpl swscale"
1915 select_filter_deps="avcodec"
1916 showspectrum_filter_deps="avcodec"
1917 super2xsai_filter_deps="gpl"
1918 tinterlace_filter_deps="gpl"
1919 yadif_filter_deps="gpl"
1920
1921 # libraries
1922 avdevice_deps="avcodec avformat"
1923 avformat_deps="avcodec"
1924 postproc_deps="gpl"
1925
1926 # programs
1927 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1928 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
1929                setpts_filter null_filter anull_filter ffabuffersink_filter"
1930 ffplay_deps="avcodec avformat swscale swresample sdl"
1931 ffplay_select="ffbuffersink_filter rdft"
1932 ffprobe_deps="avcodec avformat"
1933 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1934 ffserver_extralibs='$ldl'
1935
1936 # documentation
1937 podpages_deps="perl"
1938 manpages_deps="perl pod2man"
1939 htmlpages_deps="texi2html"
1940 txtpages_deps="makeinfo"
1941 doc_deps_any="manpages htmlpages podpages txtpages"
1942
1943 # tests
1944 colormatrix1_test_deps="colormatrix_filter"
1945 colormatrix2_test_deps="colormatrix_filter"
1946 flashsv2_test_deps="zlib"
1947 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1948 mpng_test_deps="zlib"
1949 pp_test_deps="mp_filter"
1950 pp2_test_deps="mp_filter"
1951 pp3_test_deps="mp_filter"
1952 pp4_test_deps="mp_filter"
1953 pp5_test_deps="mp_filter"
1954 pp6_test_deps="mp_filter"
1955 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1956 zlib_test_deps="zlib"
1957 zmbv_test_deps="zlib"
1958
1959 test_deps(){
1960     suf1=$1
1961     suf2=$2
1962     shift 2
1963     for v; do
1964         dep=${v%=*}
1965         tests=${v#*=}
1966         for name in ${tests}; do
1967             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1968         done
1969     done
1970 }
1971
1972 test_deps _muxer _demuxer                                               \
1973     aiff                                                                \
1974     pcm_alaw=alaw                                                       \
1975     asf                                                                 \
1976     au                                                                  \
1977     avi                                                                 \
1978     dv=dv_fmt                                                           \
1979     ffm                                                                 \
1980     flv=flv_fmt                                                         \
1981     gxf                                                                 \
1982     matroska=mkv                                                        \
1983     mmf                                                                 \
1984     mov="mov ismv"                                                      \
1985     pcm_mulaw=mulaw                                                     \
1986     mxf="mxf mxf_d10"                                                   \
1987     nut                                                                 \
1988     ogg="ogg ogg_vp3"                                                   \
1989     rawvideo=pixfmt                                                     \
1990     rm                                                                  \
1991     swf                                                                 \
1992     mpegts=ts                                                           \
1993     voc                                                                 \
1994     wav                                                                 \
1995     yuv4mpegpipe=yuv4mpeg                                               \
1996
1997 # default parameters
1998
1999 logfile="config.log"
2000
2001 # installation paths
2002 prefix_default="/usr/local"
2003 bindir_default='${prefix}/bin'
2004 datadir_default='${prefix}/share/ffmpeg'
2005 incdir_default='${prefix}/include'
2006 libdir_default='${prefix}/lib'
2007 mandir_default='${prefix}/share/man'
2008 shlibdir_default="$libdir_default"
2009 postproc_version_default="current"
2010
2011 # toolchain
2012 ar_default="ar"
2013 cc_default="gcc"
2014 cxx_default="g++"
2015 host_cc_default="gcc"
2016 install="install"
2017 ln_s="ln -sf"
2018 nm_default="nm"
2019 objformat="elf"
2020 pkg_config_default=pkg-config
2021 ranlib="ranlib"
2022 strip_default="strip"
2023 yasmexe_default="yasm"
2024
2025 nm_opts='-g'
2026 nogas=":"
2027
2028 # machine
2029 arch_default=$(uname -m)
2030 cpu="generic"
2031
2032 # OS
2033 target_os_default=$(tolower $(uname -s))
2034 host_os=$target_os_default
2035
2036 # alternative libpostproc version
2037 ALT_PP_VER_MAJOR=51
2038 ALT_PP_VER_MINOR=2
2039 ALT_PP_VER_MICRO=101
2040 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2041
2042 # configurable options
2043 enable $PROGRAM_LIST
2044 enable $DOCUMENT_LIST
2045
2046 enable avcodec
2047 enable avdevice
2048 enable avfilter
2049 enable avformat
2050 enable avutil
2051 enable postproc
2052 enable stripping
2053 enable swresample
2054 enable swscale
2055
2056 enable asm
2057 enable debug
2058 enable doc
2059 enable network
2060 enable optimizations
2061 enable safe_bitstream_reader
2062 enable static
2063 enable swscale_alpha
2064
2065 # build settings
2066 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2067 FFSERVERLDFLAGS=-Wl,-E
2068 LIBPREF="lib"
2069 LIBSUF=".a"
2070 FULLNAME='$(NAME)$(BUILDSUF)'
2071 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2072 SLIBPREF="lib"
2073 SLIBSUF=".so"
2074 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2075 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2076 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2077 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2078 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2079 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2080
2081 asflags_filter=echo
2082 cflags_filter=echo
2083 ldflags_filter=echo
2084
2085 AS_C='-c'
2086 AS_O='-o $@'
2087 CC_C='-c'
2088 CC_E='-E -o $@'
2089 CC_O='-o $@'
2090 CXX_C='-c'
2091 CXX_O='-o $@'
2092 LD_O='-o $@'
2093 FORCE_INC="-include"
2094 LD_LIB='-l%'
2095 LD_PATH='-L'
2096 HOSTCC_C='-c'
2097 HOSTCC_O='-o $@'
2098 HOSTLD_O='-o $@'
2099
2100 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2101 host_libs='-lm'
2102 host_cflags_filter=echo
2103 host_ldflags_filter=echo
2104
2105 target_path='$(CURDIR)'
2106
2107 # since the object filename is not given with the -MM flag, the compiler
2108 # is only able to print the basename, and we must add the path ourselves
2109 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2110 DEPFLAGS='-MM'
2111
2112 # find source path
2113 if test -f configure; then
2114     source_path=.
2115 else
2116     source_path=$(cd $(dirname "$0"); pwd)
2117     echo "$source_path" | grep -q '[[:blank:]]' &&
2118         die "Out of tree builds are impossible with whitespace in source path."
2119     test -e "$source_path/config.h" &&
2120         die "Out of tree builds are impossible with config.h in source dir."
2121 fi
2122
2123 for v in "$@"; do
2124     r=${v#*=}
2125     l=${v%"$r"}
2126     r=$(sh_quote "$r")
2127     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2128 done
2129
2130 find_things(){
2131     thing=$1
2132     pattern=$2
2133     file=$source_path/$3
2134     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2135 }
2136
2137 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2138 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2139 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2140 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2141 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2142 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2143 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2144 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2145 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2146 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2147 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2148
2149 ALL_COMPONENTS="
2150     $BSF_LIST
2151     $DECODER_LIST
2152     $DEMUXER_LIST
2153     $ENCODER_LIST
2154     $FILTER_LIST
2155     $HWACCEL_LIST
2156     $INDEV_LIST
2157     $MUXER_LIST
2158     $OUTDEV_LIST
2159     $PARSER_LIST
2160     $PROTOCOL_LIST
2161 "
2162
2163 find_tests(){
2164     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2165 }
2166
2167 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2168 LAVF_TESTS=$(find_tests lavf)
2169 LAVFI_TESTS=$(find_tests lavfi)
2170 SEEK_TESTS=$(find_tests seek seek_)
2171
2172 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2173
2174 for n in $COMPONENT_LIST; do
2175     v=$(toupper ${n%s})_LIST
2176     eval enable \$$v
2177     eval ${n}_if_any="\$$v"
2178 done
2179
2180 enable $ARCH_EXT_LIST $ALL_TESTS
2181
2182 die_unknown(){
2183     echo "Unknown option \"$1\"."
2184     echo "See $0 --help for available options."
2185     exit 1
2186 }
2187
2188 show_list() {
2189     suffix=_$1
2190     shift
2191     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2192     exit 0
2193 }
2194
2195 rand_list(){
2196     IFS=', '
2197     set -- $*
2198     unset IFS
2199     for thing; do
2200         comp=${thing%:*}
2201         prob=${thing#$comp}
2202         prob=${prob#:}
2203         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2204         echo "prob ${prob:-0.5}"
2205         printf '%s\n' $comp
2206     done
2207 }
2208
2209 do_random(){
2210     action=$1
2211     shift
2212     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2213     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2214 }
2215
2216 for opt do
2217     optval="${opt#*=}"
2218     case "$opt" in
2219     --extra-ldflags=*) add_ldflags $optval
2220     ;;
2221     --extra-libs=*) add_extralibs $optval
2222     ;;
2223     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2224     ;;
2225     --enable-debug=*) debuglevel="$optval"
2226     ;;
2227     --disable-everything)
2228     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2229     ;;
2230     --enable-random|--disable-random)
2231     action=${opt%%-random}
2232     do_random ${action#--} $COMPONENT_LIST
2233     ;;
2234     --enable-random=*|--disable-random=*)
2235     action=${opt%%-random=*}
2236     do_random ${action#--} $optval
2237     ;;
2238     --enable-*=*|--disable-*=*)
2239     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2240     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2241     eval list=\$$(toupper $thing)_LIST
2242     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2243     $action $(filter "$name" $list)
2244     ;;
2245     --enable-?*|--disable-?*)
2246     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2247     if is_in $option $COMPONENT_LIST; then
2248         test $action = disable && action=unset
2249         eval $action \$$(toupper ${option%s})_LIST
2250     elif is_in $option $CMDLINE_SELECT; then
2251         $action $option
2252     else
2253         die_unknown $opt
2254     fi
2255     ;;
2256     --list-*)
2257         NAME="${opt#--list-}"
2258         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2259         NAME=${NAME%s}
2260         eval show_list $NAME \$$(toupper $NAME)_LIST
2261     ;;
2262     --help|-h) show_help
2263     ;;
2264     *)
2265     optname="${opt%%=*}"
2266     optname="${optname#--}"
2267     optname=$(echo "$optname" | sed 's/-/_/g')
2268     if is_in $optname $CMDLINE_SET; then
2269         eval $optname='$optval'
2270     elif is_in $optname $CMDLINE_APPEND; then
2271         append $optname "$optval"
2272     else
2273          die_unknown $opt
2274     fi
2275     ;;
2276     esac
2277 done
2278
2279 disabled logging && logfile=/dev/null
2280
2281 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2282 set >> $logfile
2283
2284 test -n "$cross_prefix" && enable cross_compile
2285
2286 if enabled cross_compile; then
2287     test -n "$arch" && test -n "$target_os" ||
2288         die "Must specify target arch and OS when cross-compiling"
2289 fi
2290
2291 set_default arch target_os postproc_version
2292
2293 # Check if we should build alternative libpostproc version instead of current
2294 if   test "$postproc_version" = $ALT_PP_VER; then
2295   LIBPOSTPROC_VERSION=$ALT_PP_VER
2296   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2297   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2298   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2299 elif test "$postproc_version" != current; then
2300   die "Invalid argument to --postproc-version. See --help output."
2301 fi
2302
2303 ar_default="${cross_prefix}${ar_default}"
2304 cc_default="${cross_prefix}${cc_default}"
2305 cxx_default="${cross_prefix}${cxx_default}"
2306 nm_default="${cross_prefix}${nm_default}"
2307 pkg_config_default="${cross_prefix}${pkg_config_default}"
2308 ranlib="${cross_prefix}${ranlib}"
2309 strip_default="${cross_prefix}${strip_default}"
2310
2311 sysinclude_default="${sysroot}/usr/include"
2312
2313 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2314 enabled cross_compile || host_cc_default=$cc
2315 set_default host_cc
2316
2317 if ! $pkg_config --version >/dev/null 2>&1; then
2318     warn "$pkg_config not found, library detection may fail."
2319     pkg_config=false
2320 fi
2321
2322 exesuf() {
2323     case $1 in
2324         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2325     esac
2326 }
2327
2328 EXESUF=$(exesuf $target_os)
2329 HOSTEXESUF=$(exesuf $host_os)
2330
2331 # set temporary file name
2332 : ${TMPDIR:=$TEMPDIR}
2333 : ${TMPDIR:=$TMP}
2334 : ${TMPDIR:=/tmp}
2335
2336 if ! check_cmd mktemp -u XXXXXX; then
2337     # simple replacement for missing mktemp
2338     # NOT SAFE FOR GENERAL USE
2339     mktemp(){
2340         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2341     }
2342 fi
2343
2344 tmpfile(){
2345     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2346         (set -C; exec > $tmp) 2>/dev/null ||
2347         die "Unable to create temporary file in $TMPDIR."
2348     append TMPFILES $tmp
2349     eval $1=$tmp
2350 }
2351
2352 trap 'rm -f -- $TMPFILES' EXIT
2353
2354 tmpfile TMPASM .asm
2355 tmpfile TMPC   .c
2356 tmpfile TMPCPP .cpp
2357 tmpfile TMPE   $EXESUF
2358 tmpfile TMPH   .h
2359 tmpfile TMPO   .o
2360 tmpfile TMPS   .S
2361 tmpfile TMPSH  .sh
2362 tmpfile TMPV   .ver
2363
2364 unset -f mktemp
2365
2366 chmod +x $TMPE
2367
2368 # make sure we can execute files in $TMPDIR
2369 cat > $TMPSH 2>> $logfile <<EOF
2370 #! /bin/sh
2371 EOF
2372 chmod +x $TMPSH >> $logfile 2>&1
2373 if ! $TMPSH >> $logfile 2>&1; then
2374     cat <<EOF
2375 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2376 variable to another directory and make sure that it is not mounted noexec.
2377 EOF
2378     die "Sanity test failed."
2379 fi
2380
2381 pgi_flags(){
2382     for flag; do
2383         case $flag in
2384             -fomit-frame-pointer) echo -Mnoframe ;;
2385             -g)                   echo -gopt ;;
2386             *)                    echo $flag ;;
2387         esac
2388     done
2389 }
2390
2391 suncc_flags(){
2392     for flag; do
2393         case $flag in
2394             -march=*|-mcpu=*)
2395                 case "${flag#*=}" in
2396                     native)                   echo -xtarget=native       ;;
2397                     v9|niagara)               echo -xarch=sparc          ;;
2398                     ultrasparc)               echo -xarch=sparcvis       ;;
2399                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2400                     i586|pentium)             echo -xchip=pentium        ;;
2401                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2402                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2403                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2404                     pentium4*)          echo -xtarget=pentium4           ;;
2405                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2406                     *-sse3)             echo -xarch=sse3                 ;;
2407                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2408                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2409                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2410                     k8|opteron|athlon64|athlon-fx)
2411                                               echo -xarch=sse2a          ;;
2412                     athlon*)                  echo -xarch=pentium_proa   ;;
2413                 esac
2414                 ;;
2415             -std=c99)             echo -xc99              ;;
2416             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2417             -fPIC)                echo -KPIC -xcode=pic32 ;;
2418             -W*,*)                echo $flag              ;;
2419             -f*-*|-W*)                                    ;;
2420             *)                    echo $flag              ;;
2421         esac
2422     done
2423 }
2424
2425 tms470_flags(){
2426     for flag; do
2427         case $flag in
2428             -march=*|-mcpu=*)
2429                 case "${flag#*=}" in
2430                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2431                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2432                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2433                     armv6*|arm11*)          echo -mv=6   ;;
2434                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2435                                             echo -mv=5e  ;;
2436                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2437                 esac
2438                 ;;
2439             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2440             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2441             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2442             -msoft-float)   echo --float_support=vfplib       ;;
2443             -O[0-3]|-mf=*)  echo $flag                        ;;
2444             -g)             echo -g -mn                       ;;
2445             -pds=*)         echo $flag                        ;;
2446             -D*|-I*)        echo $flag                        ;;
2447             --gcc|--abi=*)  echo $flag                        ;;
2448             -me)            echo $flag                        ;;
2449         esac
2450     done
2451 }
2452
2453 probe_cc(){
2454     pfx=$1
2455     _cc=$2
2456
2457     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2458     unset _ld_o _ldflags _ld_lib _ld_path
2459     unset _depflags _DEPCMD _DEPFLAGS
2460     _flags_filter=echo
2461
2462     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2463         _type=llvm_gcc
2464         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2465         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2466         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2467         _cflags_speed='-O3'
2468         _cflags_size='-Os'
2469     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2470         _type=gcc
2471         gcc_version=$($_cc --version | head -n1)
2472         gcc_basever=$($_cc -dumpversion)
2473         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2474         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2475         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2476         if ! $_cc -dumpversion | grep -q '^2\.'; then
2477             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2478         fi
2479         _cflags_speed='-O3'
2480         _cflags_size='-Os'
2481     elif $_cc --version 2>/dev/null | grep -q Intel; then
2482         _type=icc
2483         _ident=$($_cc --version | head -n1)
2484         _depflags='-MMD'
2485         _cflags_speed='-O3'
2486         _cflags_size='-Os'
2487         _cflags_noopt='-O1'
2488     elif $_cc -v 2>&1 | grep -q xlc; then
2489         _type=xlc
2490         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2491         _cflags_speed='-O5'
2492         _cflags_size='-O5 -qcompact'
2493     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2494         _type=ccc
2495         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2496         _DEPFLAGS='-M'
2497         debuglevel=3
2498         _ldflags='-Wl,-z,now' # calls to libots crash without this
2499         _cflags_speed='-fast'
2500         _cflags_size='-O1'
2501     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2502         test -d "$sysroot" || die "No valid sysroot specified."
2503         _type=armcc
2504         _ident=$($_cc --vsn | head -n1)
2505         armcc_conf="$PWD/armcc.conf"
2506         $_cc --arm_linux_configure                 \
2507              --arm_linux_config_file="$armcc_conf" \
2508              --configure_sysroot="$sysroot"        \
2509              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2510              die "Error creating armcc configuration file."
2511         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2512         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2513         as_default="${cross_prefix}gcc"
2514         _depflags='-MMD'
2515         _cflags_speed='-O3'
2516         _cflags_size='-Os'
2517     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2518         _type=tms470
2519         _ident=$($_cc -version | head -n1 | tr -s ' ')
2520         _flags='--gcc --abi=eabi -me'
2521         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2522         _cc_e='-ppl -fe=$@'
2523         _cc_o='-fe=$@'
2524         as_default="${cross_prefix}gcc"
2525         ld_default="${cross_prefix}gcc"
2526         _depflags='-ppa -ppd=$(@:.o=.d)'
2527         _cflags_speed='-O3 -mf=5'
2528         _cflags_size='-O3 -mf=2'
2529         _flags_filter=tms470_flags
2530     elif $_cc -v 2>&1 | grep -q clang; then
2531         _type=clang
2532         _ident=$($_cc --version | head -n1)
2533         _depflags='-MMD'
2534         _cflags_speed='-O3'
2535         _cflags_size='-Os'
2536     elif $_cc -V 2>&1 | grep -q Sun; then
2537         _type=suncc
2538         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2539         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2540         _DEPFLAGS='-xM1 -xc99'
2541         _ldflags='-std=c99'
2542         _cflags_speed='-O5'
2543         _cflags_size='-O5 -xspace'
2544         _flags_filter=suncc_flags
2545     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2546         _type=pathscale
2547         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2548         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2549         _cflags_speed='-O2'
2550         _cflags_size='-Os'
2551         _flags_filter='filter_out -Wdisabled-optimization'
2552     elif $_cc -v 2>&1 | grep -q Open64; then
2553         _type=open64
2554         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2555         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2556         _cflags_speed='-O2'
2557         _cflags_size='-Os'
2558         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2559     elif $_cc -V 2>&1 | grep -q Portland; then
2560         _type=pgi
2561         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2562         opt_common='-alias=ansi -Mlre -Mpre'
2563         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2564         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2565         _cflags_noopt="-O1"
2566         _flags_filter=pgi_flags
2567     fi
2568
2569     eval ${pfx}_type=\$_type
2570     eval ${pfx}_ident=\$_ident
2571 }
2572
2573 set_ccvars(){
2574     eval ${1}_C=\${_cc_c-\${${1}_C}}
2575     eval ${1}_E=\${_cc_e-\${${1}_E}}
2576     eval ${1}_O=\${_cc_o-\${${1}_O}}
2577
2578     if [ -n "$_depflags" ]; then
2579         eval ${1}_DEPFLAGS=\$_depflags
2580     else
2581         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2582         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2583         eval DEP${1}FLAGS=\$_flags
2584     fi
2585 }
2586
2587 probe_cc cc "$cc"
2588 cflags_filter=$_flags_filter
2589 cflags_speed=$_cflags_speed
2590 cflags_size=$_cflags_size
2591 cflags_noopt=$_cflags_noopt
2592 add_cflags $_flags $_cflags
2593 cc_ldflags=$_ldflags
2594 set_ccvars CC
2595
2596 probe_cc hostcc "$host_cc"
2597 host_cflags_filter=$_flags_filter
2598 add_host_cflags  $_flags $_cflags
2599 set_ccvars HOSTCC
2600
2601 test -n "$cc_type" && enable $cc_type ||
2602     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2603
2604 : ${as_default:=$cc}
2605 : ${dep_cc_default:=$cc}
2606 : ${ld_default:=$cc}
2607 : ${host_ld_default:=$host_cc}
2608 set_default ar as dep_cc ld host_ld
2609
2610 probe_cc as "$as"
2611 asflags_filter=$_flags_filter
2612 add_asflags $_flags $_cflags
2613 set_ccvars AS
2614
2615 probe_cc ld "$ld"
2616 ldflags_filter=$_flags_filter
2617 add_ldflags $_flags $_ldflags
2618 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2619 LD_O=${_ld_o-$LD_O}
2620 LD_LIB=${_ld_lib-$LD_LIB}
2621 LD_PATH=${_ld_path-$LD_PATH}
2622
2623 probe_cc hostld "$host_ld"
2624 host_ldflags_filter=$_flags_filter
2625 add_host_ldflags $_flags $_ldflags
2626 HOSTLD_O=${_ld_o-$HOSTLD_O}
2627
2628 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2629     probe_cc depcc "$dep_cc"
2630     CCDEP=${_DEPCMD:-$DEPCMD}
2631     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2632     DEPCCFLAGS=$_flags
2633 fi
2634
2635 add_cflags $extra_cflags
2636 add_cxxflags $extra_cxxflags
2637 add_asflags $extra_cflags
2638
2639 if test -n "$sysroot"; then
2640     case "$cc_type" in
2641         gcc|llvm_gcc|clang)
2642             add_cppflags --sysroot="$sysroot"
2643             add_ldflags --sysroot="$sysroot"
2644         ;;
2645         tms470)
2646             add_cppflags -I"$sysinclude"
2647             add_ldflags  --sysroot="$sysroot"
2648         ;;
2649     esac
2650 fi
2651
2652 if test "$cpu" = host; then
2653     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2654
2655     case "$cc_type" in
2656         gcc|llvm_gcc)
2657             check_native(){
2658                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2659                 sed -n "/cc1.*$1=/{
2660                             s/.*$1=\\([^ ]*\\).*/\\1/
2661                             p
2662                             q
2663                         }" $TMPE
2664             }
2665             cpu=$(check_native -march || check_native -mcpu)
2666         ;;
2667     esac
2668
2669     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2670 fi
2671
2672 # Deal with common $arch aliases
2673 case "$arch" in
2674     arm*|iPad*)
2675         arch="arm"
2676     ;;
2677     mips|mipsel|IP*)
2678         arch="mips"
2679     ;;
2680     mips64*)
2681         arch="mips"
2682         subarch="mips64"
2683     ;;
2684     parisc|hppa)
2685         arch="parisc"
2686     ;;
2687     parisc64|hppa64)
2688         arch="parisc"
2689         subarch="parisc64"
2690     ;;
2691     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2692         arch="ppc"
2693     ;;
2694     s390|s390x)
2695         arch="s390"
2696     ;;
2697     sh4|sh)
2698         arch="sh4"
2699     ;;
2700     sun4u|sparc64)
2701         arch="sparc"
2702         subarch="sparc64"
2703     ;;
2704     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2705         arch="x86"
2706     ;;
2707 esac
2708
2709 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2710 enable $arch
2711
2712 # Add processor-specific flags
2713 if test "$cpu" = generic; then
2714     : do nothing
2715 elif enabled ppc; then
2716
2717     case $(tolower $cpu) in
2718         601|ppc601|powerpc601)
2719             cpuflags="-mcpu=601"
2720             disable altivec
2721         ;;
2722         603*|ppc603*|powerpc603*)
2723             cpuflags="-mcpu=603"
2724             disable altivec
2725         ;;
2726         604*|ppc604*|powerpc604*)
2727             cpuflags="-mcpu=604"
2728             disable altivec
2729         ;;
2730         g3|75*|ppc75*|powerpc75*)
2731             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2732             disable altivec
2733         ;;
2734         g4|745*|ppc745*|powerpc745*)
2735             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2736         ;;
2737         74*|ppc74*|powerpc74*)
2738             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2739         ;;
2740         g5|970|ppc970|powerpc970)
2741             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2742         ;;
2743         power[3-7]*)
2744             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2745         ;;
2746         cell)
2747             cpuflags="-mcpu=cell"
2748             enable ldbrx
2749         ;;
2750         e500mc)
2751             cpuflags="-mcpu=e500mc"
2752             disable altivec
2753         ;;
2754         e500v2)
2755             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2756             disable altivec
2757         ;;
2758         e500)
2759             cpuflags="-mcpu=8540 -mhard-float"
2760             disable altivec
2761         ;;
2762     esac
2763
2764 elif enabled x86; then
2765
2766     case $cpu in
2767         i[345]86|pentium)
2768             cpuflags="-march=$cpu"
2769             disable mmx
2770         ;;
2771         # targets that do NOT support conditional mov (cmov)
2772         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2773             cpuflags="-march=$cpu"
2774             disable cmov
2775         ;;
2776         # targets that do support conditional mov (cmov)
2777         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2778             cpuflags="-march=$cpu"
2779             enable cmov
2780             enable fast_cmov
2781         ;;
2782         # targets that do support conditional mov but on which it's slow
2783         pentium4|pentium4m|prescott|nocona)
2784             cpuflags="-march=$cpu"
2785             enable cmov
2786             disable fast_cmov
2787         ;;
2788     esac
2789
2790 elif enabled sparc; then
2791
2792     case $cpu in
2793         niagara)
2794             cpuflags="-mcpu=$cpu"
2795             disable vis
2796         ;;
2797         sparc64)
2798             cpuflags="-mcpu=v9"
2799         ;;
2800     esac
2801
2802 elif enabled arm; then
2803
2804     case $cpu in
2805         armv*)
2806             cpuflags="-march=$cpu"
2807             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2808         ;;
2809         *)
2810             cpuflags="-mcpu=$cpu"
2811             case $cpu in
2812                 cortex-a*)                               subarch=armv7a  ;;
2813                 cortex-r*)                               subarch=armv7r  ;;
2814                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2815                 arm11*)                                  subarch=armv6   ;;
2816                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2817                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2818             esac
2819         ;;
2820     esac
2821
2822 elif enabled alpha; then
2823
2824     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2825
2826 elif enabled bfin; then
2827
2828     cpuflags="-mcpu=$cpu"
2829
2830 elif enabled mips; then
2831
2832     cpuflags="-march=$cpu"
2833
2834     case $cpu in
2835         24kc)
2836             disable mipsfpu
2837             disable mipsdspr1
2838             disable mipsdspr2
2839         ;;
2840         24kf*)
2841             disable mipsdspr1
2842             disable mipsdspr2
2843         ;;
2844         24kec|34kc|1004kc)
2845             disable mipsfpu
2846             disable mipsdspr2
2847         ;;
2848         24kef*|34kf*|1004kf*)
2849             disable mipsdspr2
2850         ;;
2851         74kc)
2852             disable mipsfpu
2853         ;;
2854     esac
2855
2856 elif enabled avr32; then
2857
2858     case $cpu in
2859         ap7[02]0[0-2])
2860             subarch="avr32_ap"
2861             cpuflags="-mpart=$cpu"
2862         ;;
2863         ap)
2864             subarch="avr32_ap"
2865             cpuflags="-march=$cpu"
2866         ;;
2867         uc3[ab]*)
2868             subarch="avr32_uc"
2869             cpuflags="-mcpu=$cpu"
2870         ;;
2871         uc)
2872             subarch="avr32_uc"
2873             cpuflags="-march=$cpu"
2874         ;;
2875     esac
2876
2877 fi
2878
2879 add_cflags $cpuflags
2880 add_asflags $cpuflags
2881
2882 # compiler sanity check
2883 check_exec <<EOF
2884 int main(void){ return 0; }
2885 EOF
2886 if test "$?" != 0; then
2887     echo "$cc is unable to create an executable file."
2888     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2889         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2890         echo "Only do this if you know what cross compiling means."
2891     fi
2892     die "C compiler test failed."
2893 fi
2894
2895 add_cppflags -D_ISOC99_SOURCE
2896 add_cxxflags -D__STDC_CONSTANT_MACROS
2897 check_cflags -std=c99
2898 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2899 #include <stdlib.h>
2900 EOF
2901 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2902 #include <stdlib.h>
2903 EOF
2904
2905 check_host_cflags -std=c99
2906 check_host_cflags -Wall
2907
2908 case "$arch" in
2909     alpha|ia64|mips|parisc|sparc)
2910         spic=$shared
2911     ;;
2912     x86)
2913         subarch="x86_32"
2914         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2915         if test "$subarch" = "x86_64"; then
2916             spic=$shared
2917         fi
2918     ;;
2919     ppc)
2920         check_cc <<EOF && subarch="ppc64"
2921         int test[(int)sizeof(char*) - 7];
2922 EOF
2923     ;;
2924 esac
2925
2926 enable $subarch
2927 enabled spic && enable pic
2928
2929 # OS specific
2930 case $target_os in
2931     haiku)
2932         prefix_default="/boot/common"
2933         network_extralibs="-lnetwork"
2934         host_libs=
2935         ;;
2936     sunos)
2937         FFSERVERLDFLAGS=""
2938         SHFLAGS='-shared -Wl,-h,$$(@F)'
2939         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2940         network_extralibs="-lsocket -lnsl"
2941         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2942         # When using suncc to build, the Solaris linker will mark
2943         # an executable with each instruction set encountered by
2944         # the Solaris assembler.  As our libraries contain their own
2945         # guards for processor-specific code, instead suppress
2946         # generation of the HWCAPS ELF section on Solaris x86 only.
2947         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2948         nm_opts='-P -g'
2949         ;;
2950     netbsd)
2951         disable symver
2952         oss_indev_extralibs="-lossaudio"
2953         oss_outdev_extralibs="-lossaudio"
2954         ;;
2955     openbsd|bitrig)
2956         # On OpenBSD 4.5. the compiler does not use PIC unless
2957         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2958         # however the generated executable will not do anything
2959         # (simply quits with exit-code 1, no crash, no output).
2960         # Thus explicitly enable PIC here.
2961         enable pic
2962         disable symver
2963         SHFLAGS='-shared'
2964         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2965         SLIB_INSTALL_LINKS=
2966         oss_indev_extralibs="-lossaudio"
2967         oss_outdev_extralibs="-lossaudio"
2968         ;;
2969     dragonfly)
2970         disable symver
2971         ;;
2972     freebsd)
2973         ;;
2974     bsd/os)
2975         add_extralibs -lpoll -lgnugetopt
2976         strip="strip -d"
2977         ;;
2978     darwin)
2979         gas="gas-preprocessor.pl $cc"
2980         enabled ppc && add_asflags -force_cpusubtype_ALL
2981         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2982         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2983         strip="${strip} -x"
2984         add_ldflags -Wl,-dynamic,-search_paths_first
2985         SLIBSUF=".dylib"
2986         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2987         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2988         FFSERVERLDFLAGS=-Wl,-bind_at_load
2989         objformat="macho"
2990         enabled x86_64 && objformat="macho64"
2991         enabled_any pic shared ||
2992             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2993         ;;
2994     mingw32*)
2995         if test $target_os = "mingw32ce"; then
2996             disable network
2997         else
2998             target_os=mingw32
2999         fi
3000         LIBTARGET=i386
3001         if enabled x86_64; then
3002             LIBTARGET="i386:x86-64"
3003         elif enabled arm; then
3004             LIBTARGET=arm-wince
3005         fi
3006         shlibdir_default="$bindir_default"
3007         SLIBPREF=""
3008         SLIBSUF=".dll"
3009         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3010         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3011         dlltool="${cross_prefix}dlltool"
3012         if check_cmd lib.exe -list; then
3013             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3014             if enabled x86_64; then
3015                 LIBTARGET=x64
3016             fi
3017         elif check_cmd $dlltool --version; then
3018             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3019         fi
3020         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3021         SLIB_INSTALL_LINKS=
3022         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3023         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3024         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3025         objformat="win32"
3026         enable dos_paths
3027         check_cflags -fno-common
3028         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
3029                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3030                 die "ERROR: MinGW runtime version must be >= 3.15."
3031         add_cppflags -U__STRICT_ANSI__
3032         ;;
3033     cygwin*)
3034         target_os=cygwin
3035         shlibdir_default="$bindir_default"
3036         SLIBPREF="cyg"
3037         SLIBSUF=".dll"
3038         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3039         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3040         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3041         SLIB_INSTALL_LINKS=
3042         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3043         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3044         objformat="win32"
3045         enable dos_paths
3046         check_cflags -fno-common
3047         add_cppflags -U__STRICT_ANSI__
3048         ;;
3049     *-dos|freedos|opendos)
3050         network_extralibs="-lsocket"
3051         objformat="coff"
3052         enable dos_paths
3053         add_cppflags -U__STRICT_ANSI__
3054         ;;
3055     linux)
3056         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3057         enable dv1394
3058         ;;
3059     irix*)
3060         target_os=irix
3061         ranlib="echo ignoring ranlib"
3062         ;;
3063     os/2*)
3064         strip="lxlite -CS"
3065         ln_s="cp -f"
3066         objformat="aout"
3067         add_cppflags -D_GNU_SOURCE
3068         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3069         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3070         FFSERVERLDFLAGS=""
3071         LIBSUF="_s.a"
3072         SLIBPREF=""
3073         SLIBSUF=".dll"
3074         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3075         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3076         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3077           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3078           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3079           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3080           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3081           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3082         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3083           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3084         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3085         enable dos_paths
3086         enable_weak os2threads
3087         ;;
3088     gnu/kfreebsd)
3089         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3090         ;;
3091     gnu)
3092         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3093         ;;
3094     qnx)
3095         add_cppflags -D_QNX_SOURCE
3096         network_extralibs="-lsocket"
3097         ;;
3098     symbian)
3099         SLIBSUF=".dll"
3100         enable dos_paths
3101         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3102         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3103         add_ldflags -Wl,--target1-abs,--no-undefined \
3104                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3105                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3106         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3107                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3108                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3109         ;;
3110     none)
3111         ;;
3112     *)
3113         die "Unknown OS '$target_os'."
3114         ;;
3115 esac
3116
3117 esc(){
3118     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3119 }
3120
3121 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3122
3123 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3124
3125 set_default $PATHS_LIST
3126
3127 # we need to build at least one lib type
3128 if ! enabled_any static shared; then
3129     cat <<EOF
3130 At least one library type must be built.
3131 Specify --enable-static to build the static libraries or --enable-shared to
3132 build the shared libraries as well. To only build the shared libraries specify
3133 --disable-static in addition to --enable-shared.
3134 EOF
3135     exit 1;
3136 fi
3137
3138 die_license_disabled() {
3139     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3140 }
3141
3142 die_license_disabled_gpl() {
3143     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3144 }
3145
3146 die_license_disabled gpl libcdio
3147 die_license_disabled gpl libutvideo
3148 die_license_disabled gpl libx264
3149 die_license_disabled gpl libxavs
3150 die_license_disabled gpl libxvid
3151 die_license_disabled gpl x11grab
3152
3153 die_license_disabled nonfree libaacplus
3154 die_license_disabled nonfree libfaac
3155 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3156 enabled gpl && die_license_disabled_gpl nonfree openssl
3157
3158 die_license_disabled version3 libopencore_amrnb
3159 die_license_disabled version3 libopencore_amrwb
3160 die_license_disabled version3 libvo_aacenc
3161 die_license_disabled version3 libvo_amrwbenc
3162
3163 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3164
3165 disabled optimizations || check_cflags -fomit-frame-pointer
3166
3167 enable_pic() {
3168     enable pic
3169     add_cppflags -DPIC
3170     add_cflags   -fPIC
3171     add_asflags  -fPIC
3172 }
3173
3174 enabled pic && enable_pic
3175
3176 check_cc <<EOF || die "Symbol mangling check failed."
3177 int ff_extern;
3178 EOF
3179 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3180 extern_prefix=${sym%%ff_extern*}
3181
3182 check_cc <<EOF && enable inline_asm
3183 void foo(void) { __asm__ volatile ("" ::); }
3184 EOF
3185
3186 _restrict=
3187 for restrict_keyword in restrict __restrict__ __restrict; do
3188     check_cc <<EOF && _restrict=$restrict_keyword && break
3189 void foo(char * $restrict_keyword p);
3190 EOF
3191 done
3192
3193 check_cc <<EOF && enable attribute_packed
3194 struct { int x; } __attribute__((packed)) x;
3195 EOF
3196
3197 check_cc <<EOF && enable attribute_may_alias
3198 union { int x; } __attribute__((may_alias)) x;
3199 EOF
3200
3201 check_cc <<EOF || die "endian test failed"
3202 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3203 EOF
3204 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3205
3206 if enabled alpha; then
3207
3208     check_cflags -mieee
3209
3210 elif enabled arm; then
3211
3212     enabled thumb && check_cflags -mthumb || check_cflags -marm
3213     nogas=die
3214
3215     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3216         enable vfp_args
3217     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3218         case "${cross_prefix:-$cc}" in
3219             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3220             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3221 __asm__ (".eabi_attribute 28, 1");
3222 int main(void) { return 0; }
3223 EOF
3224         esac
3225         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3226     fi
3227
3228     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3229     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3230     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3231     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3232     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3233     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3234
3235     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3236     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3237
3238     enabled_all armv6t2 shared !pic && enable_pic
3239
3240 elif enabled mips; then
3241
3242     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3243     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3244     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3245      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3246     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3247      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3248     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3249      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3250     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3251      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3252
3253 elif enabled ppc; then
3254
3255     enable local_aligned_8 local_aligned_16
3256
3257     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3258     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3259     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3260     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3261
3262     # AltiVec flags: The FSF version of GCC differs from the Apple version
3263     if enabled altivec; then
3264         nogas=warn
3265         check_cflags -maltivec -mabi=altivec &&
3266         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3267         check_cflags -faltivec
3268
3269         # check if our compiler supports Motorola AltiVec C API
3270         check_cc <<EOF || disable altivec
3271 $inc_altivec_h
3272 int main(void) {
3273     vector signed int v1 = (vector signed int) { 0 };
3274     vector signed int v2 = (vector signed int) { 1 };
3275     v1 = vec_add(v1, v2);
3276     return 0;
3277 }
3278 EOF
3279
3280         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3281     fi
3282
3283 elif enabled sparc; then
3284
3285     enabled vis &&
3286         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3287         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3288
3289 elif enabled x86; then
3290
3291     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3292     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3293     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3294     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3295
3296     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3297
3298     enable local_aligned_8 local_aligned_16
3299
3300     # check whether EBP is available on x86
3301     # As 'i' is stored on the stack, this program will crash
3302     # if the base pointer is used to access it because the
3303     # base pointer is cleared in the inline assembly code.
3304     check_exec_crash <<EOF && enable ebp_available
3305     volatile int i=0;
3306     __asm__ volatile (
3307         "xorl %%ebp, %%ebp"
3308     ::: "%ebp");
3309     return i;
3310 EOF
3311
3312     # check whether EBX is available on x86
3313     check_inline_asm ebx_available '""::"b"(0)' &&
3314         check_inline_asm ebx_available '"":::"%ebx"'
3315
3316     # check whether xmm clobbers are supported
3317     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3318
3319     # check whether binutils is new enough to compile SSSE3/MMXEXT
3320     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3321     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3322
3323     if ! disabled_any asm mmx yasm; then
3324         if check_cmd $yasmexe --version; then
3325             enabled x86_64 && yasm_extra="-m amd64"
3326             yasm_debug="-g dwarf2"
3327         elif check_cmd nasm -v; then
3328             yasmexe=nasm
3329             yasm_debug="-g -F dwarf"
3330             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3331         fi
3332
3333         YASMFLAGS="-f $objformat $yasm_extra"
3334         enabled pic               && append YASMFLAGS "-DPIC"
3335         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3336         case "$objformat" in
3337             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3338         esac
3339
3340         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3341             die "yasm not found, use --disable-yasm for a crippled build"
3342         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3343         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3344         check_yasm "CPU amdnop" && enable cpunop
3345     fi
3346
3347     case "$cpu" in
3348         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3349             disable fast_clz
3350         ;;
3351     esac
3352
3353 fi
3354
3355 if enabled asm; then
3356     as=${gas:=$as}
3357     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3358         $nogas "GNU assembler not found, install gas-preprocessor"
3359 fi
3360
3361 check_ldflags -Wl,--as-needed
3362
3363 if check_func dlopen; then
3364     ldl=
3365 elif check_func dlopen -ldl; then
3366     ldl=-ldl
3367 fi
3368
3369 if enabled network; then
3370     check_type "sys/types.h sys/socket.h" socklen_t
3371     check_type netdb.h "struct addrinfo"
3372     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3373     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3374     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3375     check_type netinet/in.h "struct sockaddr_in6"
3376     check_type poll.h "struct pollfd"
3377     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3378     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3379     check_type netinet/sctp.h "struct sctp_event_subscribe"
3380     check_func getaddrinfo $network_extralibs
3381     # Prefer arpa/inet.h over winsock2
3382     if check_header arpa/inet.h ; then
3383         check_func closesocket
3384     elif check_header winsock2.h ; then
3385         check_func_headers winsock2.h closesocket -lws2 &&
3386             network_extralibs="-lws2" ||
3387         { check_func_headers winsock2.h closesocket -lws2_32 &&
3388             network_extralibs="-lws2_32"; }
3389         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3390         check_type ws2tcpip.h socklen_t
3391         check_type ws2tcpip.h "struct addrinfo"
3392         check_type ws2tcpip.h "struct group_source_req"
3393         check_type ws2tcpip.h "struct ip_mreq_source"
3394         check_type ws2tcpip.h "struct ipv6_mreq"
3395         check_type winsock2.h "struct pollfd"
3396         check_type ws2tcpip.h "struct sockaddr_in6"
3397         check_type ws2tcpip.h "struct sockaddr_storage"
3398         check_struct winsock2.h "struct sockaddr" sa_len
3399     else
3400         disable network
3401     fi
3402 fi
3403
3404 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3405 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3406
3407 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3408 check_func  fcntl
3409 check_func  fork
3410 check_func  gethrtime
3411 check_func  getopt
3412 check_func  getrusage
3413 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3414 check_func  gettimeofday
3415 check_func  inet_aton $network_extralibs
3416 check_func  isatty
3417 check_func  localtime_r
3418 check_func  ${malloc_prefix}memalign            && enable memalign
3419 check_func  mkstemp
3420 check_func  mmap
3421 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3422 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3423 check_func  setrlimit
3424 check_func  snprintf
3425 check_func  strerror_r
3426 check_func  strptime
3427 check_func  sched_getaffinity
3428 check_func  sysconf
3429 check_func  sysctl
3430 check_func  usleep
3431 check_func_headers conio.h kbhit
3432 check_func_headers windows.h PeekNamedPipe
3433 check_func_headers io.h setmode
3434 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3435 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3436 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3437 check_func_headers windows.h GetProcessAffinityMask
3438 check_func_headers windows.h GetProcessTimes
3439 check_func_headers windows.h GetSystemTimeAsFileTime
3440 check_func_headers windows.h MapViewOfFile
3441 check_func_headers windows.h Sleep
3442 check_func_headers windows.h VirtualAlloc
3443 check_func_headers glob.h glob
3444
3445 # Check for MSVCRT; it has a broken strtod() that can't parse some input.
3446 # Use old dos symbol to detect it. If we are on mingw, it already provides
3447 # its own replacement and we don't need to redo that.
3448 if check_func _get_doserrno; then
3449     if test $target_os != mingw32; then
3450         enable broken_strtod
3451     fi
3452 fi
3453
3454 check_header dlfcn.h
3455 check_header dxva.h
3456 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3457 check_header libcrystalhd/libcrystalhd_if.h
3458 check_header malloc.h
3459 check_header poll.h
3460 check_header sys/mman.h
3461 check_header sys/param.h
3462 check_header sys/resource.h
3463 check_header sys/select.h
3464 check_header sys/time.h
3465 check_header termios.h
3466 check_header unistd.h
3467 check_header vdpau/vdpau.h
3468 check_header vdpau/vdpau_x11.h
3469 check_header windows.h
3470 check_header X11/extensions/XvMClib.h
3471 check_header asm/types.h
3472
3473 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3474 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3475
3476 # check for VDA header
3477 if ! disabled vda; then
3478     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3479         enable vda
3480         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3481     fi
3482 fi
3483
3484 if ! disabled w32threads && ! enabled pthreads; then
3485     check_func _beginthreadex && enable w32threads
3486 fi
3487
3488 # check for some common methods of building with pthread support
3489 # do this before the optional library checks as some of them require pthreads
3490 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3491     enable pthreads
3492     if check_func pthread_create; then
3493         :
3494     elif check_func pthread_create -pthread; then
3495         add_cflags -pthread
3496         add_extralibs -pthread
3497     elif check_func pthread_create -pthreads; then
3498         add_cflags -pthreads
3499         add_extralibs -pthreads
3500     elif check_func pthread_create -lpthreadGC2; then
3501         add_extralibs -lpthreadGC2
3502     elif ! check_lib pthread.h pthread_create -lpthread; then
3503         disable pthreads
3504     fi
3505 fi
3506
3507 for thread in $THREADS_LIST; do
3508     if enabled $thread; then
3509         test -n "$thread_type" &&
3510             die "ERROR: Only one thread type must be selected." ||
3511             thread_type="$thread"
3512     fi
3513 done
3514
3515 if enabled pthreads; then
3516   check_func pthread_cancel
3517 fi
3518
3519 check_lib math.h sin -lm && LIBM="-lm"
3520 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3521 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3522
3523 check_mathfunc cbrtf
3524 check_mathfunc exp2
3525 check_mathfunc exp2f
3526 check_mathfunc isinf
3527 check_mathfunc isnan
3528 check_mathfunc llrint
3529 check_mathfunc llrintf
3530 check_mathfunc log2
3531 check_mathfunc log2f
3532 check_mathfunc lrint
3533 check_mathfunc lrintf
3534 check_mathfunc rint
3535 check_mathfunc round
3536 check_mathfunc roundf
3537 check_mathfunc trunc
3538 check_mathfunc truncf
3539
3540 # these are off by default, so fail if requested and not available
3541 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3542 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3543 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3544 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3545 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3546 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3547 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3548 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3549 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3550                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3551                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3552 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3553 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3554 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3555 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"
3556 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3557 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3558 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3559 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3560 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3561 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3562 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3563 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3564 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3565 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3566 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3567 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3568 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3569 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3570 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3571 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3572 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3573     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3574     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3575 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3576 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3577                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3578                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3579 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3580 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3581 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3582 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3583 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3584 enabled libvpx     && {
3585     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3586                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3587     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3588                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3589 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3590                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3591                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3592 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3593 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3594 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3595                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3596                         die "ERROR: openal not found"; } &&
3597                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3598                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3599 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3600                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3601                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3602                         die "ERROR: openssl not found"; }
3603
3604 if enabled gnutls; then
3605     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3606     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3607 fi
3608
3609 # libdc1394 check
3610 if enabled libdc1394; then
3611     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3612         enable libdc1394_2; } ||
3613     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3614         enable libdc1394_1; } ||
3615     die "ERROR: No version of libdc1394 found "
3616 fi
3617
3618 SDL_CONFIG="${cross_prefix}sdl-config"
3619 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3620     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3621     enable sdl &&
3622     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3623 else
3624   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3625     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3626     sdl_libs=$("${SDL_CONFIG}" --libs)
3627     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3628     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3629     enable sdl &&
3630     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3631   fi
3632 fi
3633 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3634
3635 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3636 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3637 perl --version > /dev/null 2>&1 && enable perl || disable perl
3638 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3639
3640 check_header linux/fb.h
3641 check_header linux/videodev.h
3642 check_header linux/videodev2.h
3643 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3644
3645 check_header sys/videoio.h
3646
3647 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3648 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3649 # w32api 3.12 had it defined wrong
3650 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3651
3652 check_type "dshow.h" IBaseFilter
3653
3654 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3655 { check_header dev/bktr/ioctl_meteor.h &&
3656   check_header dev/bktr/ioctl_bt848.h; } ||
3657 { check_header machine/ioctl_meteor.h &&
3658   check_header machine/ioctl_bt848.h; } ||
3659 { check_header dev/video/meteor/ioctl_meteor.h &&
3660   check_header dev/video/bktr/ioctl_bt848.h; } ||
3661 check_header dev/ic/bt8xx.h
3662
3663 check_header sndio.h
3664 if check_struct sys/soundcard.h audio_buf_info bytes; then
3665     enable_safe sys/soundcard.h
3666 else
3667     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3668     #include <sys/soundcard.h>
3669     audio_buf_info abc;
3670 EOF
3671 fi
3672 check_header soundcard.h
3673
3674 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3675
3676 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3677     check_func jack_port_get_latency_range -ljack
3678
3679 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3680
3681 enabled libcdio &&
3682     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3683
3684 enabled x11grab                                           &&
3685 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3686 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3687 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3688
3689 if ! disabled vaapi; then
3690     check_lib va/va.h vaInitialize -lva && {
3691         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3692         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3693     } || disable vaapi
3694 fi
3695
3696 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3697 check_cpp_condition \
3698     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3699     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3700       disable vdpau; }
3701 fi
3702
3703 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3704 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3705 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"
3706
3707 # add some useful compiler flags if supported
3708 check_cflags -Wdeclaration-after-statement
3709 check_cflags -Wall
3710 check_cflags -Wno-parentheses
3711 check_cflags -Wno-switch
3712 check_cflags -Wno-format-zero-length
3713 check_cflags -Wdisabled-optimization
3714 check_cflags -Wpointer-arith
3715 check_cflags -Wredundant-decls
3716 check_cflags -Wno-pointer-sign
3717 check_cflags -Wwrite-strings
3718 check_cflags -Wtype-limits
3719 check_cflags -Wundef
3720 check_cflags -Wmissing-prototypes
3721 check_cflags -Wno-pointer-to-int-cast
3722 check_cflags -Wstrict-prototypes
3723 enabled extra_warnings && check_cflags -Winline
3724
3725 # add some linker flags
3726 check_ldflags -Wl,--warn-common
3727 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3728 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3729
3730 enabled xmm_clobber_test &&
3731     check_ldflags -Wl,--wrap,avcodec_open2              \
3732                   -Wl,--wrap,avcodec_decode_audio4      \
3733                   -Wl,--wrap,avcodec_decode_video2      \
3734                   -Wl,--wrap,avcodec_decode_subtitle2   \
3735                   -Wl,--wrap,avcodec_encode_audio2      \
3736                   -Wl,--wrap,avcodec_encode_video       \
3737                   -Wl,--wrap,avcodec_encode_subtitle    \
3738                   -Wl,--wrap,sws_scale ||
3739     disable xmm_clobber_test
3740
3741 echo "X{};" > $TMPV
3742 if test_ldflags -Wl,--version-script,$TMPV; then
3743     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3744     check_cc <<EOF && enable symver_asm_label
3745 void ff_foo(void) __asm__ ("av_foo@VERSION");
3746 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3747 EOF
3748     check_cc <<EOF && enable symver_gnu_asm
3749 __asm__(".symver ff_foo,av_foo@VERSION");
3750 void ff_foo(void) {}
3751 EOF
3752 fi
3753
3754 if [ -n "$optflags" ]; then
3755     add_cflags $optflags
3756 elif enabled small; then
3757     add_cflags $cflags_size
3758 elif enabled optimizations; then
3759     add_cflags $cflags_speed
3760 else
3761     add_cflags $cflags_noopt
3762 fi
3763 check_cflags -fno-math-errno
3764 check_cflags -fno-signed-zeros
3765 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3766 int x;
3767 EOF
3768
3769
3770 if enabled icc; then
3771     # Just warnings, no remarks
3772     check_cflags -w1
3773     # -wd: Disable following warnings
3774     # 144, 167, 556: -Wno-pointer-sign
3775     # 1292: attribute "foo" ignored
3776     # 1419: external declaration in primary source file
3777     # 10006: ignoring unknown option -fno-signed-zeros
3778     # 10148: ignoring unknown option -Wno-parentheses
3779     # 10156: ignoring option '-W'; no argument required
3780     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3781     # 11030: Warning unknown option --as-needed
3782     # 10156: ignoring option '-export'; no argument required
3783     check_ldflags -wd10156,11030
3784     # Allow to compile with optimizations
3785     check_ldflags -march=$cpu
3786     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3787     enable ebp_available
3788     if enabled x86_32; then
3789         icc_version=$($cc -dumpversion)
3790         test ${icc_version%%.*} -ge 11 &&
3791             check_cflags -falign-stack=maintain-16-byte ||
3792             disable aligned_stack
3793     fi
3794 elif enabled ccc; then
3795     # disable some annoying warnings
3796     add_cflags -msg_disable cvtu32to64
3797     add_cflags -msg_disable embedcomment
3798     add_cflags -msg_disable needconstext
3799     add_cflags -msg_disable nomainieee
3800     add_cflags -msg_disable ptrmismatch1
3801     add_cflags -msg_disable unreachcode
3802 elif enabled gcc; then
3803     check_cflags -fno-tree-vectorize
3804     check_cflags -Werror=implicit-function-declaration
3805     check_cflags -Werror=missing-prototypes
3806 elif enabled llvm_gcc; then
3807     check_cflags -mllvm -stack-alignment=16
3808 elif enabled clang; then
3809     check_cflags -mllvm -stack-alignment=16
3810     check_cflags -Qunused-arguments
3811 elif enabled armcc; then
3812     # 2523: use of inline assembler is deprecated
3813     add_cflags -W${armcc_opt},--diag_suppress=2523
3814     add_cflags -W${armcc_opt},--diag_suppress=1207
3815     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3816     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3817     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3818     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3819 elif enabled tms470; then
3820     add_cflags -pds=824 -pds=837
3821 elif enabled pathscale; then
3822     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3823 fi
3824
3825 # If a missing snprintf/broken strtod is detected, force-include headers
3826 # that override prototypes and define it to a prefixed one implemented in
3827 # libavutil. We do this at the end since -I flags aren't set in configure,
3828 # and any additional check_cflags() beyond here will thus fail (because
3829 # it can't find these files, because the -I$(srcdir) wasn't set).
3830 enabled snprintf || force_include compat/snprintf.h
3831 enabled broken_strtod && force_include compat/strtod.h
3832
3833 enabled_any $THREADS_LIST      && enable threads
3834
3835 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3836
3837 check_deps $CONFIG_LIST       \
3838            $CONFIG_EXTRA      \
3839            $HAVE_LIST         \
3840            $ALL_COMPONENTS    \
3841            $ALL_TESTS         \
3842
3843
3844 if test $target_os = "haiku"; then
3845     disable memalign
3846     disable posix_memalign
3847 fi
3848
3849 ! enabled_any memalign posix_memalign aligned_malloc &&
3850     enabled_any $need_memalign && enable memalign_hack
3851
3852 # add_dep lib dep
3853 # -> enable ${lib}_deps_${dep}
3854 # -> add $dep to ${lib}_deps only once
3855 add_dep() {
3856     lib=$1
3857     dep=$2
3858     enabled "${lib}_deps_${dep}" && return 0
3859     enable  "${lib}_deps_${dep}"
3860     prepend "${lib}_deps" $dep
3861 }
3862
3863 # merge deps lib components
3864 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3865 merge_deps() {
3866     lib=$1
3867     shift
3868     for comp in $*; do
3869         enabled $comp || continue
3870         eval "dep=\"\$${comp}_deps\""
3871         for d in $dep; do
3872             add_dep $lib $d
3873         done
3874     done
3875 }
3876
3877 merge_deps libavfilter $FILTER_LIST
3878
3879 echo "install prefix            $prefix"
3880 echo "source path               $source_path"
3881 echo "C compiler                $cc"
3882 echo "ARCH                      $arch ($cpu)"
3883 if test "$build_suffix" != ""; then
3884     echo "build suffix              $build_suffix"
3885 fi
3886 if test "$progs_suffix" != ""; then
3887     echo "progs suffix              $progs_suffix"
3888 fi
3889 if test "$extra_version" != ""; then
3890     echo "version string suffix     $extra_version"
3891 fi
3892 echo "big-endian                ${bigendian-no}"
3893 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3894 if enabled x86; then
3895     echo "${yasmexe}                      ${yasm-no}"
3896     echo "MMX enabled               ${mmx-no}"
3897     echo "MMXEXT enabled            ${mmxext-no}"
3898     echo "3DNow! enabled            ${amd3dnow-no}"
3899     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3900     echo "SSE enabled               ${sse-no}"
3901     echo "SSSE3 enabled             ${ssse3-no}"
3902     echo "AVX enabled               ${avx-no}"
3903     echo "FMA4 enabled              ${fma4-no}"
3904     echo "CMOV enabled              ${cmov-no}"
3905     echo "CMOV is fast              ${fast_cmov-no}"
3906     echo "EBX available             ${ebx_available-no}"
3907     echo "EBP available             ${ebp_available-no}"
3908 fi
3909 if enabled arm; then
3910     echo "ARMv5TE enabled           ${armv5te-no}"
3911     echo "ARMv6 enabled             ${armv6-no}"
3912     echo "ARMv6T2 enabled           ${armv6t2-no}"
3913     echo "ARM VFP enabled           ${armvfp-no}"
3914     echo "NEON enabled              ${neon-no}"
3915 fi
3916 if enabled mips; then
3917     echo "MMI enabled               ${mmi-no}"
3918     echo "MIPS FPU enabled          ${mipsfpu-no}"
3919     echo "MIPS32R2 enabled          ${mips32r2-no}"
3920     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3921     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3922 fi
3923 if enabled ppc; then
3924     echo "AltiVec enabled           ${altivec-no}"
3925     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3926     echo "dcbzl available           ${dcbzl-no}"
3927 fi
3928 if enabled sparc; then
3929     echo "VIS enabled               ${vis-no}"
3930 fi
3931 echo "debug symbols             ${debug-no}"
3932 echo "strip symbols             ${stripping-no}"
3933 echo "optimize for size         ${small-no}"
3934 echo "optimizations             ${optimizations-no}"
3935 echo "static                    ${static-no}"
3936 echo "shared                    ${shared-no}"
3937 echo "postprocessing support    ${postproc-no}"
3938 echo "new filter support        ${avfilter-no}"
3939 echo "network support           ${network-no}"
3940 echo "threading support         ${thread_type-no}"
3941 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3942 echo "SDL support               ${sdl-no}"
3943 echo "libdxva2 enabled          ${dxva2-no}"
3944 echo "libva enabled             ${vaapi-no}"
3945 echo "libvdpau enabled          ${vdpau-no}"
3946 echo "AVISynth enabled          ${avisynth-no}"
3947 echo "frei0r enabled            ${frei0r-no}"
3948 echo "gnutls enabled            ${gnutls-no}"
3949 echo "libaacplus enabled        ${libaacplus-no}"
3950 echo "libass enabled            ${libass-no}"
3951 echo "libcaca enabled           ${libcaca-no}"
3952 echo "libcdio support           ${libcdio-no}"
3953 echo "libcelt enabled           ${libcelt-no}"
3954 echo "libdc1394 support         ${libdc1394-no}"
3955 echo "libfaac enabled           ${libfaac-no}"
3956 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3957 echo "libgsm enabled            ${libgsm-no}"
3958 echo "libiec61883 support       ${libiec61883-no}"
3959 echo "libilbc enabled           ${libilbc-no}"
3960 echo "libmodplug enabled        ${libmodplug-no}"
3961 echo "libmp3lame enabled        ${libmp3lame-no}"
3962 echo "libnut enabled            ${libnut-no}"
3963 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3964 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3965 echo "libopencv support         ${libopencv-no}"
3966 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3967 echo "libopus enabled           ${libopus-no}"
3968 echo "libpulse enabled          ${libpulse-no}"
3969 echo "librtmp enabled           ${librtmp-no}"
3970 echo "libschroedinger enabled   ${libschroedinger-no}"
3971 echo "libspeex enabled          ${libspeex-no}"
3972 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3973 echo "libtheora enabled         ${libtheora-no}"
3974 echo "libtwolame enabled        ${libtwolame-no}"
3975 echo "libutvideo enabled        ${libutvideo-no}"
3976 echo "libv4l2 enabled           ${libv4l2-no}"
3977 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3978 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3979 echo "libvorbis enabled         ${libvorbis-no}"
3980 echo "libvpx enabled            ${libvpx-no}"
3981 echo "libx264 enabled           ${libx264-no}"
3982 echo "libxavs enabled           ${libxavs-no}"
3983 echo "libxvid enabled           ${libxvid-no}"
3984 echo "openal enabled            ${openal-no}"
3985 echo "openssl enabled           ${openssl-no}"
3986 echo "zlib enabled              ${zlib-no}"
3987 echo "bzlib enabled             ${bzlib-no}"
3988 echo "texi2html enabled         ${texi2html-no}"
3989 echo "perl enabled              ${perl-no}"
3990 echo "pod2man enabled           ${pod2man-no}"
3991 echo "makeinfo enabled          ${makeinfo-no}"
3992 test -n "$random_seed" &&
3993     echo "random seed               ${random_seed}"
3994 echo
3995
3996 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3997     echo "Enabled ${type}s:"
3998     eval list=\$$(toupper $type)_LIST
3999     print_enabled '_*' $list | sort | pr -r -3 -t
4000     echo
4001 done
4002
4003 license="LGPL version 2.1 or later"
4004 if enabled nonfree; then
4005     license="nonfree and unredistributable"
4006 elif enabled gplv3; then
4007     license="GPL version 3 or later"
4008 elif enabled lgplv3; then
4009     license="LGPL version 3 or later"
4010 elif enabled gpl; then
4011     license="GPL version 2 or later"
4012 fi
4013
4014 echo "License: $license"
4015
4016 echo "Creating config.mak and config.h..."
4017
4018 test -e Makefile || $ln_s "$source_path/Makefile" .
4019
4020 enabled stripping || strip="echo skipping strip"
4021
4022 config_files="$TMPH config.mak"
4023
4024 cat > config.mak <<EOF
4025 # Automatically generated by configure - do not modify!
4026 ifndef FFMPEG_CONFIG_MAK
4027 FFMPEG_CONFIG_MAK=1
4028 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4029 prefix=$prefix
4030 LIBDIR=\$(DESTDIR)$libdir
4031 SHLIBDIR=\$(DESTDIR)$shlibdir
4032 INCDIR=\$(DESTDIR)$incdir
4033 BINDIR=\$(DESTDIR)$bindir
4034 DATADIR=\$(DESTDIR)$datadir
4035 MANDIR=\$(DESTDIR)$mandir
4036 SRC_PATH=$source_path
4037 ifndef MAIN_MAKEFILE
4038 SRC_PATH:=\$(SRC_PATH:.%=..%)
4039 endif
4040 CC_IDENT=$cc_ident
4041 ARCH=$arch
4042 CC=$cc
4043 CXX=$cxx
4044 AS=$as
4045 LD=$ld
4046 DEPCC=$dep_cc
4047 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4048 DEPAS=$as
4049 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4050 YASM=$yasmexe
4051 DEPYASM=$yasmexe
4052 AR=$ar
4053 RANLIB=$ranlib
4054 CP=cp -p
4055 LN_S=$ln_s
4056 STRIP=$strip
4057 CPPFLAGS=$CPPFLAGS
4058 CFLAGS=$CFLAGS
4059 CXXFLAGS=$CXXFLAGS
4060 ASFLAGS=$ASFLAGS
4061 AS_C=$AS_C
4062 AS_O=$AS_O
4063 CC_C=$CC_C
4064 CC_O=$CC_O
4065 CXX_C=$CXX_C
4066 CXX_O=$CXX_O
4067 LD_O=$LD_O
4068 LD_LIB=$LD_LIB
4069 LD_PATH=$LD_PATH
4070 DLLTOOL=$dlltool
4071 LDFLAGS=$LDFLAGS
4072 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4073 SHFLAGS=$SHFLAGS
4074 YASMFLAGS=$YASMFLAGS
4075 BUILDSUF=$build_suffix
4076 PROGSSUF=$progs_suffix
4077 FULLNAME=$FULLNAME
4078 LIBPREF=$LIBPREF
4079 LIBSUF=$LIBSUF
4080 LIBNAME=$LIBNAME
4081 SLIBPREF=$SLIBPREF
4082 SLIBSUF=$SLIBSUF
4083 EXESUF=$EXESUF
4084 EXTRA_VERSION=$extra_version
4085 CCDEP=$CCDEP
4086 CXXDEP=$CXXDEP
4087 CCDEP_FLAGS=$CCDEP_FLAGS
4088 ASDEP=$ASDEP
4089 ASDEP_FLAGS=$ASDEP_FLAGS
4090 CC_DEPFLAGS=$CC_DEPFLAGS
4091 AS_DEPFLAGS=$AS_DEPFLAGS
4092 HOSTCC=$host_cc
4093 HOSTLD=$host_ld
4094 HOSTCFLAGS=$host_cflags
4095 HOSTEXESUF=$HOSTEXESUF
4096 HOSTLDFLAGS=$host_ldflags
4097 HOSTLIBS=$host_libs
4098 DEPHOSTCC=$host_cc
4099 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4100 HOSTCCDEP=$HOSTCCDEP
4101 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4102 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4103 HOSTCC_C=$HOSTCC_C
4104 HOSTCC_O=$HOSTCC_O
4105 HOSTLD_O=$HOSTLD_O
4106 TARGET_EXEC=$target_exec
4107 TARGET_PATH=$target_path
4108 LIBS-ffplay=$sdl_libs
4109 CFLAGS-ffplay=$sdl_cflags
4110 ZLIB=$($ldflags_filter -lz)
4111 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4112 EXTRALIBS=$extralibs
4113 INSTALL=$install
4114 LIBTARGET=${LIBTARGET}
4115 SLIBNAME=${SLIBNAME}
4116 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4117 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4118 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4119 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4120 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4121 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4122 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4123 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4124 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4125 NOREDZONE_FLAGS=$noredzone_flags
4126 EOF
4127
4128 get_version(){
4129     lcname=$1
4130     name=$(toupper $lcname)
4131     file=$source_path/$lcname/version.h
4132     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4133     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4134     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4135     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4136 }
4137
4138 get_version_old(){
4139     name=$1
4140     file=$source_path/$2
4141 # This condition will be removed when we stop supporting old libpostproc versions
4142 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4143     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4144     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4145 fi
4146     lcname=$(tolower $name)
4147     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4148     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4149 }
4150
4151 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4152 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4153
4154 get_version libavcodec
4155 get_version libavdevice
4156 get_version libavfilter
4157 get_version libavformat
4158 get_version libavresample
4159 get_version libavutil
4160 get_version libswscale
4161
4162 cat > $TMPH <<EOF
4163 /* Automatically generated by configure - do not modify! */
4164 #ifndef FFMPEG_CONFIG_H
4165 #define FFMPEG_CONFIG_H
4166 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4167 #define FFMPEG_LICENSE "$(c_escape $license)"
4168 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4169 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4170 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4171 #define av_restrict $_restrict
4172 #define EXTERN_PREFIX "${extern_prefix}"
4173 #define EXTERN_ASM ${extern_prefix}
4174 #define SLIBSUF "$SLIBSUF"
4175 #define HAVE_MMX2 HAVE_MMXEXT
4176 EOF
4177
4178 test -n "$assert_level" &&
4179     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4180
4181 test -n "$malloc_prefix" &&
4182     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4183
4184 if enabled yasm; then
4185     append config_files $TMPASM
4186     printf '' >$TMPASM
4187 fi
4188
4189 print_config ARCH_   "$config_files" $ARCH_LIST
4190 print_config HAVE_   "$config_files" $HAVE_LIST
4191 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4192                                      $CONFIG_EXTRA      \
4193                                      $ALL_COMPONENTS    \
4194
4195 cat >>config.mak <<EOF
4196 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4197 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4198 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4199 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4200 EOF
4201
4202 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4203 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4204
4205 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4206 cp_if_changed $TMPH config.h
4207 touch .config
4208
4209 enabled yasm && cp_if_changed $TMPASM config.asm
4210
4211 cat > $TMPH <<EOF
4212 /* Generated by ffconf */
4213 #ifndef AVUTIL_AVCONFIG_H
4214 #define AVUTIL_AVCONFIG_H
4215 EOF
4216
4217 test "$postproc_version" != current && cat >> $TMPH <<EOF
4218 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4219 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4220 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4221 EOF
4222
4223 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4224
4225 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4226
4227 cp_if_changed $TMPH libavutil/avconfig.h
4228
4229 test -n "$WARNINGS" && printf "\n$WARNINGS"
4230
4231 # build pkg-config files
4232
4233 pkgconfig_generate(){
4234 name=$1
4235 shortname=${name#lib}${build_suffix}
4236 comment=$2
4237 version=$3
4238 libs=$4
4239 requires=$5
4240 enabled ${name#lib} || return 0
4241 mkdir -p $name
4242 cat <<EOF > $name/$name.pc
4243 prefix=$prefix
4244 exec_prefix=\${prefix}
4245 libdir=$libdir
4246 includedir=$incdir
4247
4248 Name: $name
4249 Description: $comment
4250 Version: $version
4251 Requires: $(enabled shared || echo $requires)
4252 Requires.private: $(enabled shared && echo $requires)
4253 Conflicts:
4254 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4255 Libs.private: $(enabled shared && echo $libs)
4256 Cflags: -I\${includedir}
4257 EOF
4258
4259 mkdir -p doc/examples/pc-uninstalled
4260 includedir=${source_path}
4261 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4262 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4263 prefix=
4264 exec_prefix=
4265 libdir=\${pcfiledir}/../../../$name
4266 includedir=${includedir}
4267
4268 Name: $name
4269 Description: $comment
4270 Version: $version
4271 Requires: $requires
4272 Conflicts:
4273 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4274 Cflags: -I\${includedir}
4275 EOF
4276 }
4277
4278 libavfilter_pc_deps=""
4279 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4280 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4281 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4282 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4283 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4284 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4285
4286 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4287 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4288
4289 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4290 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4291 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4292 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4293 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4294 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4295 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4296 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4297 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"