Merge commit '0db2d94280e260af5f3ad7993c5a6357462f17c9'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 show_help(){
58 cat <<EOF
59 Usage: configure [options]
60 Options: [defaults in brackets after descriptions]
61
62 Help options:
63   --help                   print this message
64   --list-decoders          show all available decoders
65   --list-encoders          show all available encoders
66   --list-hwaccels          show all available hardware accelerators
67   --list-demuxers          show all available demuxers
68   --list-muxers            show all available muxers
69   --list-parsers           show all available parsers
70   --list-protocols         show all available protocols
71   --list-bsfs              show all available bitstream filters
72   --list-indevs            show all available input devices
73   --list-outdevs           show all available output devices
74   --list-filters           show all available filters
75
76 Standard options:
77   --logfile=FILE           log tests and output to FILE [config.log]
78   --disable-logging        do not log configure debug information
79   --prefix=PREFIX          install in PREFIX [$prefix]
80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
82   --libdir=DIR             install libs in DIR [PREFIX/lib]
83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
84   --incdir=DIR             install includes in DIR [PREFIX/include]
85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
86
87 Licensing options:
88   --enable-gpl             allow use of GPL code, the resulting libs
89                            and binaries will be under GPL [no]
90   --enable-version3        upgrade (L)GPL to version 3 [no]
91   --enable-nonfree         allow use of nonfree code, the resulting libs
92                            and binaries will be unredistributable [no]
93
94 Configuration options:
95   --disable-static         do not build static libraries [no]
96   --enable-shared          build shared libraries [no]
97   --enable-small           optimize for size instead of speed
98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
99   --enable-gray            enable full grayscale support (slower color)
100   --disable-swscale-alpha  disable alpha channel support in swscale
101
102 Documentation options:
103   --disable-doc            do not build documentation
104   --disable-htmlpages      do not build HTML documentation pages
105   --disable-manpages       do not build man documentation pages
106   --disable-podpages       do not build POD documentation pages
107   --disable-txtpages       do not build text documentation pages
108
109 Component options:
110   --disable-ffmpeg         disable ffmpeg build
111   --disable-ffplay         disable ffplay build
112   --disable-ffprobe        disable ffprobe build
113   --disable-ffserver       disable ffserver build
114   --disable-avdevice       disable libavdevice build
115   --disable-avcodec        disable libavcodec build
116   --disable-avformat       disable libavformat build
117   --disable-swresample     disable libswresample build
118   --disable-swscale        disable libswscale build
119   --disable-postproc       disable libpostproc build
120   --disable-avfilter       disable libavfilter build
121   --enable-avresample      enable libavresample build [no]
122   --disable-pthreads       disable pthreads [auto]
123   --disable-w32threads     disable Win32 threads [auto]
124   --disable-os2threads     disable OS/2 threads [auto]
125   --enable-x11grab         enable X11 grabbing [no]
126   --disable-network        disable network support [no]
127   --disable-dct            disable DCT code
128   --disable-dwt            disable DWT code
129   --disable-lsp            disable LSP code
130   --disable-mdct           disable MDCT code
131   --disable-rdft           disable RDFT code
132   --disable-fft            disable FFT code
133   --enable-dxva2           enable DXVA2 code
134   --enable-vaapi           enable VAAPI code [autodetect]
135   --enable-vda             enable VDA code   [autodetect]
136   --enable-vdpau           enable VDPAU code [autodetect]
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176   --enable-avisynth        enable reading of AVISynth script files [no]
177   --enable-bzlib           enable bzlib [autodetect]
178   --enable-fontconfig      enable fontconfig
179   --enable-frei0r          enable frei0r video filtering
180   --enable-gnutls          enable gnutls [no]
181   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
182   --enable-libass          enable libass subtitles rendering [no]
183   --enable-libbluray       enable BluRay reading using libbluray [no]
184   --enable-libcaca         enable textual display using libcaca
185   --enable-libcelt         enable CELT decoding via libcelt [no]
186   --enable-libcdio         enable audio CD grabbing with libcdio
187   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
188                            and libraw1394 [no]
189   --enable-libfaac         enable AAC encoding via libfaac [no]
190   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
191   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
192   --enable-libfreetype     enable libfreetype [no]
193   --enable-libgsm          enable GSM de/encoding via libgsm [no]
194   --enable-libiec61883     enable iec61883 via libiec61883 [no]
195   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
196   --enable-libmodplug      enable ModPlug via libmodplug [no]
197   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
198   --enable-libnut          enable NUT (de)muxing via libnut,
199                            native (de)muxer exists [no]
200   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
201   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
202   --enable-libopencv       enable video filtering via libopencv [no]
203   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
204   --enable-libopus         enable Opus decoding via libopus [no]
205   --enable-libpulse        enable Pulseaudio input via libpulse [no]
206   --enable-librtmp         enable RTMP[E] support via librtmp [no]
207   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208   --enable-libspeex        enable Speex de/encoding via libspeex [no]
209   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
210   --enable-libtheora       enable Theora encoding via libtheora [no]
211   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
212   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
213   --enable-libv4l2         enable libv4l2/v4l-utils [no]
214   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
215   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
216   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
217                            native implementation exists [no]
218   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
219   --enable-libx264         enable H.264 encoding via x264 [no]
220   --enable-libxavs         enable AVS encoding via xavs [no]
221   --enable-libxvid         enable Xvid encoding via xvidcore,
222                            native MPEG-4/Xvid encoder exists [no]
223   --enable-openal          enable OpenAL 1.1 capture support [no]
224   --enable-openssl         enable openssl [no]
225   --enable-zlib            enable zlib [autodetect]
226
227 Advanced options (experts only):
228   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
229   --enable-cross-compile   assume a cross-compiler is used
230   --sysroot=PATH           root of cross-build tree
231   --sysinclude=PATH        location of cross-build system headers
232   --target-os=OS           compiler targets OS [$target_os]
233   --target-exec=CMD        command to run executables on target
234   --target-path=DIR        path to view of build directory on target
235   --nm=NM                  use nm tool NM [$nm_default]
236   --ar=AR                  use archive tool AR [$ar_default]
237   --as=AS                  use assembler AS [$as_default]
238   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
239   --cc=CC                  use C compiler CC [$cc_default]
240   --cxx=CXX                use C compiler CXX [$cxx_default]
241   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
242   --ld=LD                  use linker LD [$ld_default]
243   --host-cc=HOSTCC         use host C compiler HOSTCC
244   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
245   --host-ld=HOSTLD         use host linker HOSTLD
246   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
247   --host-libs=HLIBS        use libs HLIBS when linking for host
248   --host-os=OS             compiler host OS [$target_os]
249   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
250   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
251   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
252   --extra-libs=ELIBS       add ELIBS [$ELIBS]
253   --extra-version=STRING   version string suffix []
254   --optflags=OPTFLAGS      override optimization-related compiler flags
255   --build-suffix=SUFFIX    library name suffix []
256   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
257   --progs-suffix=SUFFIX    program name suffix []
258   --arch=ARCH              select architecture [$arch]
259   --cpu=CPU                select the minimum required CPU (affects
260                            instruction selection, may crash on older CPUs)
261   --enable-pic             build position-independent code
262   --enable-sram            allow use of on-chip SRAM
263   --enable-thumb           compile for Thumb instruction set
264   --disable-symver         disable symbol versioning
265   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
266   --disable-safe-bitstream-reader
267                            disable buffer boundary checking in bitreaders
268                            (faster, but may crash)
269   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
270
271 Optimization options (experts only):
272   --disable-asm            disable all assembler optimizations
273   --disable-altivec        disable AltiVec optimizations
274   --disable-amd3dnow       disable 3DNow! optimizations
275   --disable-amd3dnowext    disable 3DNow! extended optimizations
276   --disable-mmx            disable MMX optimizations
277   --disable-mmxext         disable MMXEXT optimizations
278   --disable-sse            disable SSE optimizations
279   --disable-sse2           disable SSE2 optimizations
280   --disable-sse3           disable SSE3 optimizations
281   --disable-ssse3          disable SSSE3 optimizations
282   --disable-sse4           disable SSE4 optimizations
283   --disable-sse42          disable SSE4.2 optimizations
284   --disable-avx            disable AVX optimizations
285   --disable-fma4           disable FMA4 optimizations
286   --disable-armv5te        disable armv5te optimizations
287   --disable-armv6          disable armv6 optimizations
288   --disable-armv6t2        disable armv6t2 optimizations
289   --disable-armvfp         disable ARM VFP optimizations
290   --disable-mmi            disable MMI optimizations
291   --disable-neon           disable NEON optimizations
292   --disable-vis            disable VIS optimizations
293   --disable-yasm           disable use of yasm assembler
294   --disable-mips32r2       disable MIPS32R2 optimizations
295   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
296   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
297   --disable-mipsfpu        disable floating point MIPS optimizations
298   --disable-fast-unaligned consider unaligned accesses slow
299   --postproc-version=V     build libpostproc version V.
300                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
301
302 Developer options (useful when working on FFmpeg itself):
303   --enable-coverage        build with test coverage instrumentation
304   --disable-debug          disable debugging symbols
305   --enable-debug=LEVEL     set the debug level [$debuglevel]
306   --disable-optimizations  disable compiler optimizations
307   --enable-extra-warnings  enable more compiler warnings
308   --disable-stripping      disable stripping of executables and shared libraries
309   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
310                            2 causes a slowdown at runtime.
311   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
312   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
313                            leaks and errors, using the specified valgrind binary.
314                            Cannot be combined with --target-exec
315   --samples=PATH           location of test samples for FATE, if not set use
316                            \$FATE_SAMPLES at make invocation time.
317   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
318                            should be used only for debugging purposes)
319   --enable-random          randomly enable/disable components
320   --disable-random
321   --enable-random=LIST     randomly enable/disable specific components or
322   --disable-random=LIST    component groups. LIST is a comma-separated list
323                            of NAME[:PROB] entries where NAME is a component
324                            (group) and PROB the probability associated with
325                            NAME (default 0.5).
326   --random-seed=VALUE      seed value for --enable/disable-random
327
328 NOTE: Object files are built at the place where configure is launched.
329 EOF
330   exit 0
331 }
332
333 quotes='""'
334
335 log(){
336     echo "$@" >> $logfile
337 }
338
339 log_file(){
340     log BEGIN $1
341     pr -n -t $1 >> $logfile
342     log END $1
343 }
344
345 echolog(){
346     log "$@"
347     echo "$@"
348 }
349
350 warn(){
351     log "WARNING: $*"
352     WARNINGS="${WARNINGS}WARNING: $*\n"
353 }
354
355 die(){
356     echolog "$@"
357     cat <<EOF
358
359 If you think configure made a mistake, make sure you are using the latest
360 version from Git.  If the latest version fails, report the problem to the
361 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
362 EOF
363     if disabled logging; then
364         cat <<EOF
365 Rerun configure with logging enabled (do not use --disable-logging), and
366 include the log this produces with your report.
367 EOF
368     else
369 cat <<EOF
370 Include the log file "$logfile" produced by configure as this will help
371 solving the problem.
372 EOF
373     fi
374     exit 1
375 }
376
377 # Avoid locale weirdness, besides we really just want to translate ASCII.
378 toupper(){
379     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
380 }
381
382 tolower(){
383     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
384 }
385
386 c_escape(){
387     echo "$*" | sed 's/["\\]/\\\0/g'
388 }
389
390 sh_quote(){
391     v=$(echo "$1" | sed "s/'/'\\\\''/g")
392     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
393     echo "$v"
394 }
395
396 cleanws(){
397     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
398 }
399
400 filter(){
401     pat=$1
402     shift
403     for v; do
404         eval "case $v in $pat) echo $v ;; esac"
405     done
406 }
407
408 filter_out(){
409     pat=$1
410     shift
411     for v; do
412         eval "case $v in $pat) ;; *) echo $v ;; esac"
413     done
414 }
415
416 map(){
417     m=$1
418     shift
419     for v; do eval $m; done
420 }
421
422 add_suffix(){
423     suffix=$1
424     shift
425     for v; do echo ${v}${suffix}; done
426 }
427
428 set_all(){
429     value=$1
430     shift
431     for var in $*; do
432         eval $var=$value
433     done
434 }
435
436 set_weak(){
437     value=$1
438     shift
439     for var; do
440         eval : \${$var:=$value}
441     done
442 }
443
444 set_safe(){
445     var=$1
446     shift
447     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
448 }
449
450 get_safe(){
451     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
452 }
453
454 pushvar(){
455     for var in $*; do
456         eval level=\${${var}_level:=0}
457         eval ${var}_${level}="\$$var"
458         eval ${var}_level=$(($level+1))
459     done
460 }
461
462 popvar(){
463     for var in $*; do
464         eval level=\${${var}_level:-0}
465         test $level = 0 && continue
466         eval level=$(($level-1))
467         eval $var="\${${var}_${level}}"
468         eval ${var}_level=$level
469         eval unset ${var}_${level}
470     done
471 }
472
473 enable(){
474     set_all yes $*
475 }
476
477 disable(){
478     set_all no $*
479 }
480
481 enable_weak(){
482     set_weak yes $*
483 }
484
485 disable_weak(){
486     set_weak no $*
487 }
488
489 enable_safe(){
490     for var; do
491         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
492     done
493 }
494
495 disable_safe(){
496     for var; do
497         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
498     done
499 }
500
501 do_enable_deep(){
502     for var; do
503         enabled $var && continue
504         eval sel="\$${var}_select"
505         eval sgs="\$${var}_suggest"
506         pushvar var sgs
507         enable_deep $sel
508         popvar sgs
509         enable_deep_weak $sgs
510         popvar var
511     done
512 }
513
514 enable_deep(){
515     do_enable_deep $*
516     enable $*
517 }
518
519 enable_deep_weak(){
520     do_enable_deep $*
521     enable_weak $*
522 }
523
524 enabled(){
525     test "${1#!}" = "$1" && op== || op=!=
526     eval test "x\$${1#!}" $op "xyes"
527 }
528
529 disabled(){
530     test "${1#!}" = "$1" && op== || op=!=
531     eval test "x\$${1#!}" $op "xno"
532 }
533
534 enabled_all(){
535     for opt; do
536         enabled $opt || return 1
537     done
538 }
539
540 disabled_all(){
541     for opt; do
542         disabled $opt || return 1
543     done
544 }
545
546 enabled_any(){
547     for opt; do
548         enabled $opt && return 0
549     done
550 }
551
552 disabled_any(){
553     for opt; do
554         disabled $opt && return 0
555     done
556     return 1
557 }
558
559 set_default(){
560     for opt; do
561         eval : \${$opt:=\$${opt}_default}
562     done
563 }
564
565 is_in(){
566     value=$1
567     shift
568     for var in $*; do
569         [ $var = $value ] && return 0
570     done
571     return 1
572 }
573
574 check_deps(){
575     for cfg; do
576         cfg="${cfg#!}"
577         enabled ${cfg}_checking && die "Circular dependency for $cfg."
578         disabled ${cfg}_checking && continue
579         enable ${cfg}_checking
580
581         eval dep_all="\$${cfg}_deps"
582         eval dep_any="\$${cfg}_deps_any"
583         eval dep_sel="\$${cfg}_select"
584         eval dep_sgs="\$${cfg}_suggest"
585         eval dep_ifa="\$${cfg}_if"
586         eval dep_ifn="\$${cfg}_if_any"
587
588         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
589         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
590         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
591
592         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
593         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
594         enabled_all  $dep_all || disable $cfg
595         enabled_any  $dep_any || disable $cfg
596         disabled_any $dep_sel && disable $cfg
597
598         if enabled $cfg; then
599             eval dep_extralibs="\$${cfg}_extralibs"
600             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
601             enable_deep $dep_sel
602             enable_deep_weak $dep_sgs
603         fi
604
605         disable ${cfg}_checking
606     done
607 }
608
609 print_config_h(){
610     enabled $1 && v=1 || v=0
611     echo "#define $2 $v"
612 }
613
614 print_config_mak(){
615     enabled $1 && v= || v=!
616     echo "$v$2=yes"
617 }
618
619 print_config_asm(){
620     enabled $1 && v=1 || v=0
621     echo "%define $2 $v"
622 }
623
624 print_config(){
625     pfx=$1
626     files=$2
627     shift 2
628     for cfg; do
629         ucname="$(toupper $cfg)"
630         for f in $files; do
631             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
632         done
633     done
634 }
635
636 print_enabled(){
637     test "$1" = -n && end=" " && shift || end="\n"
638     suf=$1
639     shift
640     for v; do
641         enabled $v && printf "%s$end" ${v%$suf};
642     done
643 }
644
645 append(){
646     var=$1
647     shift
648     eval "$var=\"\$$var $*\""
649 }
650
651 prepend(){
652     var=$1
653     shift
654     eval "$var=\"$* \$$var\""
655 }
656
657 add_cppflags(){
658     append CPPFLAGS "$@"
659 }
660
661 add_cflags(){
662     append CFLAGS $($cflags_filter "$@")
663 }
664
665 add_cxxflags(){
666     append CXXFLAGS $($cflags_filter "$@")
667 }
668
669 add_asflags(){
670     append ASFLAGS $($asflags_filter "$@")
671 }
672
673 add_ldflags(){
674     append LDFLAGS $($ldflags_filter "$@")
675 }
676
677 add_extralibs(){
678     prepend extralibs $($ldflags_filter "$@")
679 }
680
681 add_host_cflags(){
682     append host_cflags $($host_cflags_filter "$@")
683 }
684
685 add_host_ldflags(){
686     append host_ldflags $($host_ldflags_filter "$@")
687 }
688
689 check_cmd(){
690     log "$@"
691     "$@" >> $logfile 2>&1
692 }
693
694 cc_o(){
695     eval printf '%s\\n' $CC_O
696 }
697
698 cc_e(){
699     eval printf '%s\\n' $CC_E
700 }
701
702 check_cc(){
703     log check_cc "$@"
704     cat > $TMPC
705     log_file $TMPC
706     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
707 }
708
709 check_cxx(){
710     log check_cxx "$@"
711     cat > $TMPCPP
712     log_file $TMPCPP
713     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
714 }
715
716 check_cpp(){
717     log check_cpp "$@"
718     cat > $TMPC
719     log_file $TMPC
720     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
721 }
722
723 as_o(){
724     eval printf '%s\\n' $AS_O
725 }
726
727 check_as(){
728     log check_as "$@"
729     cat > $TMPC
730     log_file $TMPC
731     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
732 }
733
734 check_inline_asm(){
735     log check_inline_asm "$@"
736     name="$1"
737     code="$2"
738     shift 2
739     disable $name
740     check_as "$@" <<EOF && enable $name
741 void foo(void){ __asm__ volatile($code); }
742 EOF
743 }
744
745 check_yasm(){
746     log check_yasm "$@"
747     echo "$1" > $TMPS
748     log_file $TMPS
749     shift 1
750     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
751 }
752
753 ld_o(){
754     eval printf '%s\\n' $LD_O
755 }
756
757 check_ld(){
758     log check_ld "$@"
759     type=$1
760     shift 1
761     flags=''
762     libs=''
763     for f; do
764         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
765     done
766     check_$type $($cflags_filter $flags) || return
767     flags=$($ldflags_filter $flags)
768     libs=$($ldflags_filter $libs)
769     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
770 }
771
772 check_code(){
773     log check_code "$@"
774     check=$1
775     headers=$2
776     code=$3
777     shift 3
778     {
779         for hdr in $headers; do
780             echo "#include <$hdr>"
781         done
782         echo "int main(void) { $code; return 0; }"
783     } | check_$check "$@"
784 }
785
786 check_cppflags(){
787     log check_cppflags "$@"
788     check_cc "$@" <<EOF && append CPPFLAGS "$@"
789 int x;
790 EOF
791 }
792
793 check_cflags(){
794     log check_cflags "$@"
795     set -- $($cflags_filter "$@")
796     check_cc "$@" <<EOF && append CFLAGS "$@"
797 int x;
798 EOF
799 }
800
801 check_cxxflags(){
802     log check_cxxflags "$@"
803     set -- $($cflags_filter "$@")
804     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
805 int x;
806 EOF
807 }
808
809 test_ldflags(){
810     log test_ldflags "$@"
811     check_ld "cc" "$@" <<EOF
812 int main(void){ return 0; }
813 EOF
814 }
815
816 check_ldflags(){
817     log check_ldflags "$@"
818     test_ldflags "$@" && add_ldflags "$@"
819 }
820
821 check_header(){
822     log check_header "$@"
823     header=$1
824     shift
825     disable_safe $header
826     check_cpp "$@" <<EOF && enable_safe $header
827 #include <$header>
828 int x;
829 EOF
830 }
831
832 check_func(){
833     log check_func "$@"
834     func=$1
835     shift
836     disable $func
837     check_ld "cc" "$@" <<EOF && enable $func
838 extern int $func();
839 int main(void){ $func(); }
840 EOF
841 }
842
843 check_mathfunc(){
844     log check_mathfunc "$@"
845     func=$1
846     shift
847     disable $func
848     check_ld "cc" "$@" <<EOF && enable $func
849 #include <math.h>
850 float foo(float f) { return $func(f); }
851 int main(void){ return (int) foo; }
852 EOF
853 }
854
855 check_func_headers(){
856     log check_func_headers "$@"
857     headers=$1
858     funcs=$2
859     shift 2
860     {
861         for hdr in $headers; do
862             echo "#include <$hdr>"
863         done
864         for func in $funcs; do
865             echo "long check_$func(void) { return (long) $func; }"
866         done
867         echo "int main(void) { return 0; }"
868     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
869 }
870
871 check_class_headers_cpp(){
872     log check_class_headers_cpp "$@"
873     headers=$1
874     classes=$2
875     shift 2
876     {
877         for hdr in $headers; do
878             echo "#include <$hdr>"
879         done
880         echo "int main(void) { "
881         i=1
882         for class in $classes; do
883             echo "$class obj$i;"
884             i=$(expr $i + 1)
885         done
886         echo "return 0; }"
887     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
888 }
889
890 check_cpp_condition(){
891     log check_cpp_condition "$@"
892     header=$1
893     condition=$2
894     shift 2
895     check_cpp "$@" <<EOF
896 #include <$header>
897 #if !($condition)
898 #error "unsatisfied condition: $condition"
899 #endif
900 EOF
901 }
902
903 check_lib(){
904     log check_lib "$@"
905     header="$1"
906     func="$2"
907     shift 2
908     check_header $header && check_func $func "$@" && add_extralibs "$@"
909 }
910
911 check_lib2(){
912     log check_lib2 "$@"
913     headers="$1"
914     funcs="$2"
915     shift 2
916     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
917 }
918
919 check_lib_cpp(){
920     log check_lib_cpp "$@"
921     headers="$1"
922     classes="$2"
923     shift 2
924     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
925 }
926
927 check_pkg_config(){
928     log check_pkg_config "$@"
929     pkg="$1"
930     headers="$2"
931     funcs="$3"
932     shift 3
933     $pkg_config --exists $pkg 2>/dev/null || return
934     pkg_cflags=$($pkg_config --cflags $pkg)
935     pkg_libs=$($pkg_config --libs $pkg)
936     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
937         set_safe ${pkg}_cflags $pkg_cflags   &&
938         set_safe ${pkg}_libs   $pkg_libs
939 }
940
941 check_exec(){
942     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
943 }
944
945 check_exec_crash(){
946     code=$(cat)
947
948     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
949     # are safe but may not be available everywhere.  Thus we use
950     # raise(SIGTERM) instead.  The check is run in a subshell so we
951     # can redirect the "Terminated" message from the shell.  SIGBUS
952     # is not defined by standard C so it is used conditionally.
953
954     (check_exec "$@") >> $logfile 2>&1 <<EOF
955 #include <signal.h>
956 static void sighandler(int sig){
957     raise(SIGTERM);
958 }
959 int func(void){
960     $code
961 }
962 int (*func_ptr)(void) = func;
963 int main(void){
964     signal(SIGILL, sighandler);
965     signal(SIGFPE, sighandler);
966     signal(SIGSEGV, sighandler);
967 #ifdef SIGBUS
968     signal(SIGBUS, sighandler);
969 #endif
970     return func_ptr();
971 }
972 EOF
973 }
974
975 check_type(){
976     log check_type "$@"
977     headers=$1
978     type=$2
979     shift 2
980     disable_safe "$type"
981     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
982 }
983
984 check_struct(){
985     log check_type "$@"
986     headers=$1
987     struct=$2
988     member=$3
989     shift 3
990     disable_safe "${struct}_${member}"
991     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
992         enable_safe "${struct}_${member}"
993 }
994
995 require(){
996     name="$1"
997     header="$2"
998     func="$3"
999     shift 3
1000     check_lib $header $func "$@" || die "ERROR: $name not found"
1001 }
1002
1003 require2(){
1004     name="$1"
1005     headers="$2"
1006     func="$3"
1007     shift 3
1008     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1009 }
1010
1011 require_cpp(){
1012     name="$1"
1013     headers="$2"
1014     classes="$3"
1015     shift 3
1016     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1017 }
1018
1019 require_pkg_config(){
1020     pkg="$1"
1021     check_pkg_config "$@" || die "ERROR: $pkg not found"
1022     add_cflags    $(get_safe ${pkg}_cflags)
1023     add_extralibs $(get_safe ${pkg}_libs)
1024 }
1025
1026 hostcc_o(){
1027     eval printf '%s\\n' $HOSTCC_O
1028 }
1029
1030 check_host_cc(){
1031     log check_host_cc "$@"
1032     cat > $TMPC
1033     log_file $TMPC
1034     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1035 }
1036
1037 check_host_cflags(){
1038     log check_host_cflags "$@"
1039     set -- $($host_cflags_filter "$@")
1040     check_host_cc "$@" <<EOF && append host_cflags "$@"
1041 int x;
1042 EOF
1043 }
1044
1045 apply(){
1046     file=$1
1047     shift
1048     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1049 }
1050
1051 cp_if_changed(){
1052     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1053     mkdir -p "$(dirname $2)"
1054     cp -f "$1" "$2"
1055 }
1056
1057 force_include(){
1058     flag=$(eval printf '%s%s\\n' '$FORCE_INC' $1)
1059     append CFLAGS "$flag"
1060 }
1061
1062 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1063 # system-dependent things.
1064
1065 COMPONENT_LIST="
1066     bsfs
1067     decoders
1068     demuxers
1069     encoders
1070     filters
1071     hwaccels
1072     indevs
1073     muxers
1074     outdevs
1075     parsers
1076     protocols
1077 "
1078
1079 DOCUMENT_LIST="
1080     doc
1081     htmlpages
1082     manpages
1083     podpages
1084     txtpages
1085 "
1086
1087 PROGRAM_LIST="
1088     ffplay
1089     ffprobe
1090     ffserver
1091     ffmpeg
1092 "
1093
1094 CONFIG_LIST="
1095     $COMPONENT_LIST
1096     $DOCUMENT_LIST
1097     $PROGRAM_LIST
1098     avcodec
1099     avdevice
1100     avfilter
1101     avformat
1102     avresample
1103     avisynth
1104     bzlib
1105     crystalhd
1106     dct
1107     dwt
1108     dxva2
1109     fast_unaligned
1110     fft
1111     fontconfig
1112     frei0r
1113     gnutls
1114     gpl
1115     gray
1116     hardcoded_tables
1117     incompatible_fork_abi
1118     libaacplus
1119     libass
1120     libbluray
1121     libcaca
1122     libcdio
1123     libcelt
1124     libdc1394
1125     libfaac
1126     libfdk_aac
1127     libflite
1128     libfreetype
1129     libgsm
1130     libiec61883
1131     libilbc
1132     libmodplug
1133     libmp3lame
1134     libnut
1135     libopencore_amrnb
1136     libopencore_amrwb
1137     libopencv
1138     libopenjpeg
1139     libopus
1140     libpulse
1141     librtmp
1142     libschroedinger
1143     libspeex
1144     libstagefright_h264
1145     libtheora
1146     libtwolame
1147     libutvideo
1148     libv4l2
1149     libvo_aacenc
1150     libvo_amrwbenc
1151     libvorbis
1152     libvpx
1153     libx264
1154     libxavs
1155     libxvid
1156     lsp
1157     mdct
1158     memalign_hack
1159     memory_poisoning
1160     network
1161     nonfree
1162     openal
1163     openssl
1164     pic
1165     postproc
1166     rdft
1167     runtime_cpudetect
1168     safe_bitstream_reader
1169     shared
1170     small
1171     sram
1172     static
1173     swresample
1174     swscale
1175     swscale_alpha
1176     thumb
1177     vaapi
1178     vda
1179     vdpau
1180     version3
1181     xmm_clobber_test
1182     x11grab
1183     zlib
1184 "
1185
1186 THREADS_LIST='
1187     pthreads
1188     w32threads
1189     os2threads
1190 '
1191
1192 ARCH_LIST='
1193     alpha
1194     arm
1195     avr32
1196     avr32_ap
1197     avr32_uc
1198     bfin
1199     ia64
1200     m68k
1201     mips
1202     mips64
1203     parisc
1204     ppc
1205     ppc64
1206     s390
1207     sh4
1208     sparc
1209     sparc64
1210     tomi
1211     x86
1212     x86_32
1213     x86_64
1214 '
1215
1216 ARCH_EXT_LIST_X86='
1217     amd3dnow
1218     amd3dnowext
1219     avx
1220     fma4
1221     mmx
1222     mmxext
1223     sse
1224     sse2
1225     sse3
1226     sse4
1227     sse42
1228     ssse3
1229 '
1230
1231 ARCH_EXT_LIST="
1232     $ARCH_EXT_LIST_X86
1233     altivec
1234     armv5te
1235     armv6
1236     armv6t2
1237     armvfp
1238     mmi
1239     neon
1240     ppc4xx
1241     vfpv3
1242     vis
1243     mipsfpu
1244     mips32r2
1245     mipsdspr1
1246     mipsdspr2
1247 "
1248
1249 HAVE_LIST_PUB='
1250     bigendian
1251     fast_unaligned
1252     incompatible_fork_abi
1253 '
1254
1255 HAVE_LIST="
1256     $ARCH_EXT_LIST
1257     $(add_suffix _external $ARCH_EXT_LIST)
1258     $(add_suffix _inline   $ARCH_EXT_LIST)
1259     $HAVE_LIST_PUB
1260     $THREADS_LIST
1261     aligned_malloc
1262     aligned_stack
1263     alsa_asoundlib_h
1264     altivec_h
1265     arpa_inet_h
1266     asm_mod_q
1267     asm_mod_y
1268     asm_types_h
1269     attribute_may_alias
1270     attribute_packed
1271     broken_strtod
1272     cbrtf
1273     clock_gettime
1274     closesocket
1275     cmov
1276     cpuid
1277     cpunop
1278     dcbzl
1279     dev_bktr_ioctl_bt848_h
1280     dev_bktr_ioctl_meteor_h
1281     dev_ic_bt8xx_h
1282     dev_video_bktr_ioctl_bt848_h
1283     dev_video_meteor_ioctl_meteor_h
1284     dlfcn_h
1285     dlopen
1286     dos_paths
1287     dxva_h
1288     ebp_available
1289     ebx_available
1290     exp2
1291     exp2f
1292     fast_64bit
1293     fast_clz
1294     fast_cmov
1295     fcntl
1296     fork
1297     getaddrinfo
1298     gethrtime
1299     getopt
1300     GetProcessAffinityMask
1301     GetProcessMemoryInfo
1302     GetProcessTimes
1303     GetSystemTimeAsFileTime
1304     getrusage
1305     gettimeofday
1306     glob
1307     gnu_as
1308     ibm_asm
1309     inet_aton
1310     inline_asm
1311     isatty
1312     isinf
1313     isnan
1314     jack_port_get_latency_range
1315     kbhit
1316     ldbrx
1317     libdc1394_1
1318     libdc1394_2
1319     llrint
1320     llrintf
1321     local_aligned_16
1322     local_aligned_8
1323     localtime_r
1324     log2
1325     log2f
1326     loongson
1327     lrint
1328     lrintf
1329     lzo1x_999_compress
1330     machine_ioctl_bt848_h
1331     machine_ioctl_meteor_h
1332     makeinfo
1333     malloc_h
1334     MapViewOfFile
1335     memalign
1336     mkstemp
1337     mm_empty
1338     mmap
1339     nanosleep
1340     PeekNamedPipe
1341     perl
1342     pod2man
1343     poll_h
1344     posix_memalign
1345     pthread_cancel
1346     rdtsc
1347     rint
1348     round
1349     roundf
1350     rweflags
1351     sched_getaffinity
1352     sdl
1353     sdl_video_size
1354     setmode
1355     setrlimit
1356     Sleep
1357     sndio_h
1358     snprintf
1359     socklen_t
1360     soundcard_h
1361     strerror_r
1362     struct_addrinfo
1363     struct_group_source_req
1364     struct_ip_mreq_source
1365     struct_ipv6_mreq
1366     struct_pollfd
1367     struct_rusage_ru_maxrss
1368     struct_sctp_event_subscribe
1369     struct_sockaddr_in6
1370     struct_sockaddr_sa_len
1371     struct_sockaddr_storage
1372     struct_v4l2_frmivalenum_discrete
1373     symver
1374     symver_asm_label
1375     symver_gnu_asm
1376     sysconf
1377     sysctl
1378     sys_mman_h
1379     sys_param_h
1380     sys_resource_h
1381     sys_select_h
1382     sys_soundcard_h
1383     sys_time_h
1384     sys_videoio_h
1385     termios_h
1386     texi2html
1387     threads
1388     trunc
1389     truncf
1390     unistd_h
1391     usleep
1392     vfp_args
1393     VirtualAlloc
1394     windows_h
1395     winsock2_h
1396     xform_asm
1397     xgetbv
1398     xmm_clobbers
1399     yasm
1400 "
1401
1402 # options emitted with CONFIG_ prefix but not available on command line
1403 CONFIG_EXTRA="
1404     aandcttables
1405     ac3dsp
1406     avutil
1407     error_resilience
1408     gcrypt
1409     golomb
1410     gplv3
1411     h264chroma
1412     h264dsp
1413     h264pred
1414     h264qpel
1415     huffman
1416     lgplv3
1417     lpc
1418     mpegaudiodsp
1419     mpegvideo
1420     mpegvideoenc
1421     nettle
1422     rangecoder
1423     rtpdec
1424     sinewin
1425     vp3dsp
1426 "
1427
1428 CMDLINE_SELECT="
1429     $ARCH_EXT_LIST
1430     $CONFIG_LIST
1431     $THREADS_LIST
1432     asm
1433     coverage
1434     cross_compile
1435     debug
1436     extra_warnings
1437     logging
1438     optimizations
1439     stripping
1440     symver
1441     yasm
1442 "
1443
1444 PATHS_LIST='
1445     bindir
1446     datadir
1447     incdir
1448     libdir
1449     mandir
1450     prefix
1451     shlibdir
1452 '
1453
1454 CMDLINE_SET="
1455     $PATHS_LIST
1456     ar
1457     arch
1458     as
1459     assert_level
1460     build_suffix
1461     cc
1462     cpu
1463     cross_prefix
1464     cxx
1465     dep_cc
1466     extra_version
1467     host_cc
1468     host_cflags
1469     host_ld
1470     host_ldflags
1471     host_libs
1472     host_os
1473     install
1474     ld
1475     logfile
1476     malloc_prefix
1477     nm
1478     optflags
1479     pkg_config
1480     postproc_version
1481     progs_suffix
1482     random_seed
1483     samples
1484     strip
1485     sysinclude
1486     sysroot
1487     target_exec
1488     target_os
1489     target_path
1490     valgrind
1491     yasmexe
1492 "
1493
1494 CMDLINE_APPEND="
1495     extra_cflags
1496     extra_cxxflags
1497 "
1498
1499 # code dependency declarations
1500
1501 # architecture extensions
1502
1503 armv5te_deps="arm"
1504 armv6_deps="arm"
1505 armv6t2_deps="arm"
1506 armvfp_deps="arm"
1507 neon_deps="arm"
1508 vfpv3_deps="armvfp"
1509
1510 mipsfpu_deps="mips"
1511 mips32r2_deps="mips"
1512 mipsdspr1_deps="mips"
1513 mipsdspr2_deps="mips"
1514 mmi_deps="mips"
1515
1516 altivec_deps="ppc"
1517 ppc4xx_deps="ppc"
1518
1519 vis_deps="sparc"
1520
1521 x86_64_suggest="cmov fast_cmov"
1522
1523 amd3dnow_deps="mmx"
1524 amd3dnowext_deps="amd3dnow"
1525 mmx_deps="x86"
1526 mmxext_deps="mmx"
1527 sse_deps="mmxext"
1528 sse2_deps="sse"
1529 sse3_deps="sse2"
1530 ssse3_deps="sse3"
1531 sse4_deps="ssse3"
1532 sse42_deps="sse4"
1533 avx_deps="sse42"
1534 fma4_deps="avx"
1535
1536 mmx_external_deps="yasm"
1537 mmx_inline_deps="inline_asm"
1538 mmx_suggest="mmx_external mmx_inline"
1539
1540 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1541     eval dep=\$${ext}_deps
1542     eval ${ext}_external_deps='"${dep}_external"'
1543     eval ${ext}_inline_deps='"${dep}_inline"'
1544     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1545 done
1546
1547 aligned_stack_if_any="ppc x86"
1548 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1549 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1550 fast_unaligned_if_any="armv6 ppc x86"
1551
1552 inline_asm_deps="!tms470"
1553 need_memalign="altivec neon sse"
1554
1555 symver_if_any="symver_asm_label symver_gnu_asm"
1556
1557 # subsystems
1558 dct_select="rdft"
1559 mdct_select="fft"
1560 rdft_select="fft"
1561 mpegaudiodsp_select="dct"
1562 mpegvideoenc_select="mpegvideo"
1563
1564 # decoders / encoders / hardware accelerators
1565 aac_decoder_select="mdct sinewin"
1566 aac_encoder_select="mdct sinewin"
1567 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1568 ac3_decoder_select="mdct ac3dsp ac3_parser"
1569 ac3_encoder_select="mdct ac3dsp"
1570 ac3_fixed_encoder_select="mdct ac3dsp"
1571 alac_encoder_select="lpc"
1572 amrnb_decoder_select="lsp"
1573 amrwb_decoder_select="lsp"
1574 amv_encoder_select="aandcttables"
1575 atrac1_decoder_select="mdct sinewin"
1576 atrac3_decoder_select="mdct"
1577 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1578 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1579 cavs_decoder_select="golomb mpegvideo"
1580 cook_decoder_select="mdct sinewin"
1581 cscd_decoder_suggest="zlib"
1582 dca_decoder_select="mdct"
1583 dirac_decoder_select="dwt golomb"
1584 dnxhd_encoder_select="aandcttables mpegvideoenc"
1585 dxa_decoder_select="zlib"
1586 eac3_decoder_select="ac3_decoder"
1587 eac3_encoder_select="ac3_encoder"
1588 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1589 eatgq_decoder_select="aandcttables"
1590 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1591 exr_decoder_select="zlib"
1592 ffv1_decoder_select="golomb rangecoder"
1593 ffv1_encoder_select="rangecoder"
1594 ffvhuff_encoder_select="huffman"
1595 flac_decoder_select="golomb"
1596 flac_encoder_select="golomb lpc"
1597 flashsv_decoder_select="zlib"
1598 flashsv_encoder_select="zlib"
1599 flashsv2_encoder_select="zlib"
1600 flashsv2_decoder_select="zlib"
1601 flv_decoder_select="h263_decoder"
1602 flv_encoder_select="h263_encoder"
1603 fraps_decoder_select="huffman"
1604 h261_decoder_select="error_resilience mpegvideo"
1605 h261_encoder_select="aandcttables mpegvideoenc"
1606 h263_decoder_select="error_resilience h263_parser mpegvideo"
1607 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1608 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1609 h263i_decoder_select="h263_decoder"
1610 h263p_encoder_select="h263_encoder"
1611 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1612 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1613 h264_dxva2_hwaccel_deps="dxva2api_h"
1614 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1615 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1616 h264_vda_decoder_select="vda h264_parser h264_decoder"
1617 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1618 h264_vda_hwaccel_select="vda h264_decoder"
1619 h264_vdpau_decoder_select="vdpau h264_decoder"
1620 huffyuv_encoder_select="huffman"
1621 iac_decoder_select="fft mdct sinewin"
1622 imc_decoder_select="fft mdct sinewin"
1623 jpegls_decoder_select="golomb"
1624 jpegls_encoder_select="golomb"
1625 ljpeg_encoder_select="aandcttables mpegvideoenc"
1626 loco_decoder_select="golomb"
1627 mdec_decoder_select="error_resilience mpegvideo"
1628 mjpeg_encoder_select="aandcttables mpegvideoenc"
1629 mlp_decoder_select="mlp_parser"
1630 mp1_decoder_select="mpegaudiodsp"
1631 mp1float_decoder_select="mpegaudiodsp"
1632 mp2_decoder_select="mpegaudiodsp"
1633 mp2float_decoder_select="mpegaudiodsp"
1634 mp3_decoder_select="mpegaudiodsp"
1635 mp3adu_decoder_select="mpegaudiodsp"
1636 mp3adufloat_decoder_select="mpegaudiodsp"
1637 mp3float_decoder_select="mpegaudiodsp"
1638 mp3on4_decoder_select="mpegaudiodsp"
1639 mp3on4float_decoder_select="mpegaudiodsp"
1640 mpc7_decoder_select="mpegaudiodsp"
1641 mpc8_decoder_select="mpegaudiodsp"
1642 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1643 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1644 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1645 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1646 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1647 mpeg1video_decoder_select="error_resilience mpegvideo"
1648 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1649 mpeg2_crystalhd_decoder_select="crystalhd"
1650 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1651 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1652 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1653 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1654 mpeg2video_decoder_select="error_resilience mpegvideo"
1655 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1656 mpeg4_crystalhd_decoder_select="crystalhd"
1657 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1658 mpeg4_encoder_select="h263_encoder"
1659 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1660 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1661 msmpeg4_crystalhd_decoder_select="crystalhd"
1662 msmpeg4v1_decoder_select="h263_decoder"
1663 msmpeg4v1_encoder_select="h263_encoder"
1664 msmpeg4v2_decoder_select="h263_decoder"
1665 msmpeg4v2_encoder_select="h263_encoder"
1666 msmpeg4v3_decoder_select="h263_decoder"
1667 msmpeg4v3_encoder_select="h263_encoder"
1668 mss2_decoder_select="vc1_decoder"
1669 nellymoser_decoder_select="mdct sinewin"
1670 nellymoser_encoder_select="mdct sinewin"
1671 png_decoder_select="zlib"
1672 png_encoder_select="zlib"
1673 qcelp_decoder_select="lsp"
1674 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1675 ra_144_encoder_select="lpc"
1676 ralf_decoder_select="golomb"
1677 rv10_decoder_select="h263_decoder"
1678 rv10_encoder_select="h263_encoder"
1679 rv20_decoder_select="h263_decoder"
1680 rv20_encoder_select="h263_encoder"
1681 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1682 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1683 shorten_decoder_select="golomb"
1684 sipr_decoder_select="lsp"
1685 snow_decoder_select="dwt rangecoder"
1686 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1687 sonic_decoder_select="golomb"
1688 sonic_encoder_select="golomb"
1689 sonic_ls_encoder_select="golomb"
1690 svq1_decoder_select="error_resilience mpegvideo"
1691 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1692 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1693 svq3_decoder_suggest="zlib"
1694 theora_decoder_select="vp3_decoder"
1695 tiff_decoder_suggest="zlib"
1696 tiff_encoder_suggest="zlib"
1697 tscc_decoder_select="zlib"
1698 twinvq_decoder_select="mdct lsp sinewin"
1699 utvideo_encoder_select="huffman"
1700 vc1_crystalhd_decoder_select="crystalhd"
1701 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1702 vc1_dxva2_hwaccel_deps="dxva2api_h"
1703 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1704 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1705 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1706 vc1image_decoder_select="vc1_decoder"
1707 vorbis_decoder_select="mdct"
1708 vorbis_encoder_select="mdct"
1709 vp3_decoder_select="vp3dsp"
1710 vp5_decoder_select="vp3dsp"
1711 vp6_decoder_select="huffman vp3dsp"
1712 vp6a_decoder_select="vp6_decoder"
1713 vp6f_decoder_select="vp6_decoder"
1714 vp8_decoder_select="h264pred h264qpel"
1715 wmapro_decoder_select="mdct sinewin"
1716 wmav1_decoder_select="mdct sinewin"
1717 wmav1_encoder_select="mdct sinewin"
1718 wmav2_decoder_select="mdct sinewin"
1719 wmav2_encoder_select="mdct sinewin"
1720 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1721 wmv1_decoder_select="h263_decoder"
1722 wmv1_encoder_select="h263_encoder"
1723 wmv2_decoder_select="h263_decoder"
1724 wmv2_encoder_select="h263_encoder"
1725 wmv3_decoder_select="vc1_decoder"
1726 wmv3_crystalhd_decoder_select="crystalhd"
1727 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1728 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1729 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1730 wmv3image_decoder_select="wmv3_decoder"
1731 zerocodec_decoder_select="zlib"
1732 zlib_decoder_select="zlib"
1733 zlib_encoder_select="zlib"
1734 zmbv_decoder_select="zlib"
1735 zmbv_encoder_select="zlib"
1736
1737 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1738 vaapi_deps="va_va_h"
1739 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1740 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1741
1742 # parsers
1743 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1744 mpeg4video_parser_select="error_resilience mpegvideo"
1745 mpegvideo_parser_select="error_resilience mpegvideo"
1746 vc1_parser_select="error_resilience mpegvideo"
1747
1748 # external libraries
1749 libaacplus_encoder_deps="libaacplus"
1750 libcelt_decoder_deps="libcelt"
1751 libfaac_encoder_deps="libfaac"
1752 libfdk_aac_encoder_deps="libfdk_aac"
1753 libgsm_decoder_deps="libgsm"
1754 libgsm_encoder_deps="libgsm"
1755 libgsm_ms_decoder_deps="libgsm"
1756 libgsm_ms_encoder_deps="libgsm"
1757 libilbc_decoder_deps="libilbc"
1758 libilbc_encoder_deps="libilbc"
1759 libmodplug_demuxer_deps="libmodplug"
1760 libmp3lame_encoder_deps="libmp3lame"
1761 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1762 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1763 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1764 libopenjpeg_decoder_deps="libopenjpeg"
1765 libopenjpeg_encoder_deps="libopenjpeg"
1766 libopus_decoder_deps="libopus"
1767 libschroedinger_decoder_deps="libschroedinger"
1768 libschroedinger_encoder_deps="libschroedinger"
1769 libspeex_decoder_deps="libspeex"
1770 libspeex_encoder_deps="libspeex"
1771 libstagefright_h264_decoder_deps="libstagefright_h264"
1772 libtheora_encoder_deps="libtheora"
1773 libtwolame_encoder_deps="libtwolame"
1774 libvo_aacenc_encoder_deps="libvo_aacenc"
1775 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1776 libvorbis_decoder_deps="libvorbis"
1777 libvorbis_encoder_deps="libvorbis"
1778 libvpx_decoder_deps="libvpx"
1779 libvpx_encoder_deps="libvpx"
1780 libx264_encoder_deps="libx264"
1781 libx264rgb_encoder_deps="libx264"
1782 libxavs_encoder_deps="libxavs"
1783 libxvid_encoder_deps="libxvid"
1784 libutvideo_decoder_deps="libutvideo"
1785 libutvideo_encoder_deps="libutvideo"
1786
1787 # demuxers / muxers
1788 ac3_demuxer_select="ac3_parser"
1789 asf_stream_muxer_select="asf_muxer"
1790 avisynth_demuxer_deps="avisynth"
1791 dirac_demuxer_select="dirac_parser"
1792 eac3_demuxer_select="ac3_parser"
1793 flac_demuxer_select="flac_parser"
1794 ipod_muxer_select="mov_muxer"
1795 libnut_demuxer_deps="libnut"
1796 libnut_muxer_deps="libnut"
1797 matroska_audio_muxer_select="matroska_muxer"
1798 matroska_demuxer_suggest="zlib bzlib"
1799 mov_demuxer_suggest="zlib"
1800 mp3_demuxer_select="mpegaudio_parser"
1801 mp4_muxer_select="mov_muxer"
1802 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1803 mpegtsraw_demuxer_select="mpegts_demuxer"
1804 mxf_d10_muxer_select="mxf_muxer"
1805 ogg_demuxer_select="golomb"
1806 psp_muxer_select="mov_muxer"
1807 rtp_demuxer_select="sdp_demuxer"
1808 rtp_muxer_select="mpegvideo"
1809 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1810 rtsp_demuxer_select="http_protocol rtpdec"
1811 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1812 sap_demuxer_select="sdp_demuxer"
1813 sap_muxer_select="rtp_muxer rtp_protocol"
1814 sdp_demuxer_select="rtpdec"
1815 spdif_muxer_select="aac_parser"
1816 tg2_muxer_select="mov_muxer"
1817 tgp_muxer_select="mov_muxer"
1818 w64_demuxer_deps="wav_demuxer"
1819
1820 # indevs / outdevs
1821 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1822 alsa_outdev_deps="alsa_asoundlib_h"
1823 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1824 caca_outdev_deps="libcaca"
1825 dshow_indev_deps="IBaseFilter"
1826 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1827 dv1394_indev_deps="dv1394 dv_demuxer"
1828 fbdev_indev_deps="linux_fb_h"
1829 iec61883_indev_deps="libiec61883"
1830 jack_indev_deps="jack_jack_h sem_timedwait"
1831 lavfi_indev_deps="avfilter"
1832 libcdio_indev_deps="libcdio"
1833 libdc1394_indev_deps="libdc1394"
1834 libv4l2_indev_deps="libv4l2"
1835 openal_indev_deps="openal"
1836 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1837 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1838 pulse_indev_deps="libpulse"
1839 sdl_outdev_deps="sdl"
1840 sndio_indev_deps="sndio_h"
1841 sndio_outdev_deps="sndio_h"
1842 v4l_indev_deps="linux_videodev_h"
1843 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1844 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1845 vfwcap_indev_extralibs="-lavicap32"
1846 x11grab_indev_deps="x11grab"
1847
1848 # protocols
1849 bluray_protocol_deps="libbluray"
1850 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1851 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1852 ffrtmpcrypt_protocol_select="tcp_protocol"
1853 ffrtmphttp_protocol_deps="!librtmp_protocol"
1854 ffrtmphttp_protocol_select="http_protocol"
1855 gopher_protocol_deps="network"
1856 httpproxy_protocol_deps="network"
1857 httpproxy_protocol_select="tcp_protocol"
1858 http_protocol_deps="network"
1859 http_protocol_select="tcp_protocol"
1860 https_protocol_select="tls_protocol"
1861 librtmp_protocol_deps="librtmp"
1862 librtmpe_protocol_deps="librtmp"
1863 librtmps_protocol_deps="librtmp"
1864 librtmpt_protocol_deps="librtmp"
1865 librtmpte_protocol_deps="librtmp"
1866 mmsh_protocol_select="http_protocol"
1867 mmst_protocol_deps="network"
1868 rtmp_protocol_deps="!librtmp_protocol"
1869 rtmp_protocol_select="tcp_protocol"
1870 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1871 rtmps_protocol_deps="!librtmp_protocol"
1872 rtmps_protocol_select="tls_protocol"
1873 rtmpt_protocol_select="ffrtmphttp_protocol"
1874 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1875 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1876 rtp_protocol_select="udp_protocol"
1877 sctp_protocol_deps="network struct_sctp_event_subscribe"
1878 tcp_protocol_deps="network"
1879 tls_protocol_deps_any="openssl gnutls"
1880 tls_protocol_select="tcp_protocol"
1881 udp_protocol_deps="network"
1882
1883 # filters
1884 aconvert_filter_deps="swresample"
1885 amovie_filter_deps="avcodec avformat"
1886 aresample_filter_deps="swresample"
1887 ass_filter_deps="libass"
1888 asyncts_filter_deps="avresample"
1889 atempo_filter_deps="avcodec rdft"
1890 blackframe_filter_deps="gpl"
1891 boxblur_filter_deps="gpl"
1892 colormatrix_filter_deps="gpl"
1893 cropdetect_filter_deps="gpl"
1894 decimate_filter_deps="gpl avcodec"
1895 delogo_filter_deps="gpl"
1896 deshake_filter_deps="avcodec"
1897 drawtext_filter_deps="libfreetype"
1898 flite_filter_deps="libflite"
1899 frei0r_filter_deps="frei0r dlopen"
1900 frei0r_filter_extralibs='$ldl'
1901 frei0r_src_filter_deps="frei0r dlopen"
1902 frei0r_src_filter_extralibs='$ldl'
1903 hqdn3d_filter_deps="gpl"
1904 movie_filter_deps="avcodec avformat"
1905 mp_filter_deps="gpl avcodec swscale postproc"
1906 mptestsrc_filter_deps="gpl"
1907 negate_filter_deps="lut_filter"
1908 resample_filter_deps="avresample"
1909 ocv_filter_deps="libopencv"
1910 pan_filter_deps="swresample"
1911 removelogo_filter_deps="avcodec avformat swscale"
1912 scale_filter_deps="swscale"
1913 smartblur_filter_deps="gpl swscale"
1914 select_filter_deps="avcodec"
1915 showspectrum_filter_deps="avcodec"
1916 super2xsai_filter_deps="gpl"
1917 tinterlace_filter_deps="gpl"
1918 yadif_filter_deps="gpl"
1919
1920 # libraries
1921 avdevice_deps="avcodec avformat"
1922 avformat_deps="avcodec"
1923 postproc_deps="gpl"
1924
1925 # programs
1926 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1927 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
1928                setpts_filter null_filter anull_filter ffabuffersink_filter"
1929 ffplay_deps="avcodec avformat swscale swresample sdl"
1930 ffplay_select="ffbuffersink_filter rdft"
1931 ffprobe_deps="avcodec avformat"
1932 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1933 ffserver_extralibs='$ldl'
1934
1935 # documentation
1936 podpages_deps="perl"
1937 manpages_deps="perl pod2man"
1938 htmlpages_deps="texi2html"
1939 txtpages_deps="makeinfo"
1940 doc_deps_any="manpages htmlpages podpages txtpages"
1941
1942 # tests
1943 colormatrix1_test_deps="colormatrix_filter"
1944 colormatrix2_test_deps="colormatrix_filter"
1945 flashsv2_test_deps="zlib"
1946 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1947 mpng_test_deps="zlib"
1948 pp_test_deps="mp_filter"
1949 pp2_test_deps="mp_filter"
1950 pp3_test_deps="mp_filter"
1951 pp4_test_deps="mp_filter"
1952 pp5_test_deps="mp_filter"
1953 pp6_test_deps="mp_filter"
1954 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1955 zlib_test_deps="zlib"
1956 zmbv_test_deps="zlib"
1957
1958 test_deps(){
1959     suf1=$1
1960     suf2=$2
1961     shift 2
1962     for v; do
1963         dep=${v%=*}
1964         tests=${v#*=}
1965         for name in ${tests}; do
1966             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1967         done
1968     done
1969 }
1970
1971 test_deps _muxer _demuxer                                               \
1972     aiff                                                                \
1973     pcm_alaw=alaw                                                       \
1974     asf                                                                 \
1975     au                                                                  \
1976     avi                                                                 \
1977     dv=dv_fmt                                                           \
1978     ffm                                                                 \
1979     flv=flv_fmt                                                         \
1980     gxf                                                                 \
1981     matroska=mkv                                                        \
1982     mmf                                                                 \
1983     mov="mov ismv"                                                      \
1984     pcm_mulaw=mulaw                                                     \
1985     mxf="mxf mxf_d10"                                                   \
1986     nut                                                                 \
1987     ogg="ogg ogg_vp3"                                                   \
1988     rawvideo=pixfmt                                                     \
1989     rm                                                                  \
1990     swf                                                                 \
1991     mpegts=ts                                                           \
1992     voc                                                                 \
1993     wav                                                                 \
1994     yuv4mpegpipe=yuv4mpeg                                               \
1995
1996 # default parameters
1997
1998 logfile="config.log"
1999
2000 # installation paths
2001 prefix_default="/usr/local"
2002 bindir_default='${prefix}/bin'
2003 datadir_default='${prefix}/share/ffmpeg'
2004 incdir_default='${prefix}/include'
2005 libdir_default='${prefix}/lib'
2006 mandir_default='${prefix}/share/man'
2007 shlibdir_default="$libdir_default"
2008 postproc_version_default="current"
2009
2010 # toolchain
2011 ar_default="ar"
2012 cc_default="gcc"
2013 cxx_default="g++"
2014 host_cc_default="gcc"
2015 install="install"
2016 ln_s="ln -sf"
2017 nm_default="nm"
2018 objformat="elf"
2019 pkg_config_default=pkg-config
2020 ranlib="ranlib"
2021 strip_default="strip"
2022 yasmexe_default="yasm"
2023
2024 nm_opts='-g'
2025 nogas=":"
2026
2027 # machine
2028 arch_default=$(uname -m)
2029 cpu="generic"
2030
2031 # OS
2032 target_os_default=$(tolower $(uname -s))
2033 host_os=$target_os_default
2034
2035 # alternative libpostproc version
2036 ALT_PP_VER_MAJOR=51
2037 ALT_PP_VER_MINOR=2
2038 ALT_PP_VER_MICRO=101
2039 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2040
2041 # configurable options
2042 enable $PROGRAM_LIST
2043 enable $DOCUMENT_LIST
2044
2045 enable avcodec
2046 enable avdevice
2047 enable avfilter
2048 enable avformat
2049 enable avutil
2050 enable postproc
2051 enable stripping
2052 enable swresample
2053 enable swscale
2054
2055 enable asm
2056 enable debug
2057 enable doc
2058 enable network
2059 enable optimizations
2060 enable safe_bitstream_reader
2061 enable static
2062 enable swscale_alpha
2063
2064 # build settings
2065 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2066 FFSERVERLDFLAGS=-Wl,-E
2067 LIBPREF="lib"
2068 LIBSUF=".a"
2069 FULLNAME='$(NAME)$(BUILDSUF)'
2070 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2071 SLIBPREF="lib"
2072 SLIBSUF=".so"
2073 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2074 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2075 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2076 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2077 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2078 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2079
2080 asflags_filter=echo
2081 cflags_filter=echo
2082 ldflags_filter=echo
2083
2084 AS_C='-c'
2085 AS_O='-o $@'
2086 CC_C='-c'
2087 CC_E='-E -o $@'
2088 CC_O='-o $@'
2089 CXX_C='-c'
2090 CXX_O='-o $@'
2091 LD_O='-o $@'
2092 FORCE_INC="-include"
2093 LD_LIB='-l%'
2094 LD_PATH='-L'
2095 HOSTCC_C='-c'
2096 HOSTCC_O='-o $@'
2097 HOSTLD_O='-o $@'
2098
2099 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2100 host_libs='-lm'
2101 host_cflags_filter=echo
2102 host_ldflags_filter=echo
2103
2104 target_path='$(CURDIR)'
2105
2106 # since the object filename is not given with the -MM flag, the compiler
2107 # is only able to print the basename, and we must add the path ourselves
2108 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2109 DEPFLAGS='-MM'
2110
2111 # find source path
2112 if test -f configure; then
2113     source_path=.
2114 else
2115     source_path=$(cd $(dirname "$0"); pwd)
2116     echo "$source_path" | grep -q '[[:blank:]]' &&
2117         die "Out of tree builds are impossible with whitespace in source path."
2118     test -e "$source_path/config.h" &&
2119         die "Out of tree builds are impossible with config.h in source dir."
2120 fi
2121
2122 for v in "$@"; do
2123     r=${v#*=}
2124     l=${v%"$r"}
2125     r=$(sh_quote "$r")
2126     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2127 done
2128
2129 find_things(){
2130     thing=$1
2131     pattern=$2
2132     file=$source_path/$3
2133     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2134 }
2135
2136 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2137 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2138 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2139 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2140 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2141 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2142 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2143 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2144 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2145 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2146 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2147
2148 ALL_COMPONENTS="
2149     $BSF_LIST
2150     $DECODER_LIST
2151     $DEMUXER_LIST
2152     $ENCODER_LIST
2153     $FILTER_LIST
2154     $HWACCEL_LIST
2155     $INDEV_LIST
2156     $MUXER_LIST
2157     $OUTDEV_LIST
2158     $PARSER_LIST
2159     $PROTOCOL_LIST
2160 "
2161
2162 find_tests(){
2163     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2164 }
2165
2166 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2167 LAVF_TESTS=$(find_tests lavf)
2168 LAVFI_TESTS=$(find_tests lavfi)
2169 SEEK_TESTS=$(find_tests seek seek_)
2170
2171 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2172
2173 for n in $COMPONENT_LIST; do
2174     v=$(toupper ${n%s})_LIST
2175     eval enable \$$v
2176     eval ${n}_if_any="\$$v"
2177 done
2178
2179 enable $ARCH_EXT_LIST $ALL_TESTS
2180
2181 die_unknown(){
2182     echo "Unknown option \"$1\"."
2183     echo "See $0 --help for available options."
2184     exit 1
2185 }
2186
2187 show_list() {
2188     suffix=_$1
2189     shift
2190     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2191     exit 0
2192 }
2193
2194 rand_list(){
2195     IFS=', '
2196     set -- $*
2197     unset IFS
2198     for thing; do
2199         comp=${thing%:*}
2200         prob=${thing#$comp}
2201         prob=${prob#:}
2202         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2203         echo "prob ${prob:-0.5}"
2204         printf '%s\n' $comp
2205     done
2206 }
2207
2208 do_random(){
2209     action=$1
2210     shift
2211     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2212     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2213 }
2214
2215 for opt do
2216     optval="${opt#*=}"
2217     case "$opt" in
2218     --extra-ldflags=*) add_ldflags $optval
2219     ;;
2220     --extra-libs=*) add_extralibs $optval
2221     ;;
2222     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2223     ;;
2224     --enable-debug=*) debuglevel="$optval"
2225     ;;
2226     --disable-everything)
2227     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2228     ;;
2229     --enable-random|--disable-random)
2230     action=${opt%%-random}
2231     do_random ${action#--} $COMPONENT_LIST
2232     ;;
2233     --enable-random=*|--disable-random=*)
2234     action=${opt%%-random=*}
2235     do_random ${action#--} $optval
2236     ;;
2237     --enable-*=*|--disable-*=*)
2238     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2239     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2240     eval list=\$$(toupper $thing)_LIST
2241     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2242     $action $(filter "$name" $list)
2243     ;;
2244     --enable-?*|--disable-?*)
2245     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2246     if is_in $option $COMPONENT_LIST; then
2247         test $action = disable && action=unset
2248         eval $action \$$(toupper ${option%s})_LIST
2249     elif is_in $option $CMDLINE_SELECT; then
2250         $action $option
2251     else
2252         die_unknown $opt
2253     fi
2254     ;;
2255     --list-*)
2256         NAME="${opt#--list-}"
2257         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2258         NAME=${NAME%s}
2259         eval show_list $NAME \$$(toupper $NAME)_LIST
2260     ;;
2261     --help|-h) show_help
2262     ;;
2263     *)
2264     optname="${opt%%=*}"
2265     optname="${optname#--}"
2266     optname=$(echo "$optname" | sed 's/-/_/g')
2267     if is_in $optname $CMDLINE_SET; then
2268         eval $optname='$optval'
2269     elif is_in $optname $CMDLINE_APPEND; then
2270         append $optname "$optval"
2271     else
2272          die_unknown $opt
2273     fi
2274     ;;
2275     esac
2276 done
2277
2278 disabled logging && logfile=/dev/null
2279
2280 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2281 set >> $logfile
2282
2283 test -n "$cross_prefix" && enable cross_compile
2284
2285 if enabled cross_compile; then
2286     test -n "$arch" && test -n "$target_os" ||
2287         die "Must specify target arch and OS when cross-compiling"
2288 fi
2289
2290 set_default arch target_os postproc_version
2291
2292 # Check if we should build alternative libpostproc version instead of current
2293 if   test "$postproc_version" = $ALT_PP_VER; then
2294   LIBPOSTPROC_VERSION=$ALT_PP_VER
2295   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2296   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2297   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2298 elif test "$postproc_version" != current; then
2299   die "Invalid argument to --postproc-version. See --help output."
2300 fi
2301
2302 ar_default="${cross_prefix}${ar_default}"
2303 cc_default="${cross_prefix}${cc_default}"
2304 cxx_default="${cross_prefix}${cxx_default}"
2305 nm_default="${cross_prefix}${nm_default}"
2306 pkg_config_default="${cross_prefix}${pkg_config_default}"
2307 ranlib="${cross_prefix}${ranlib}"
2308 strip_default="${cross_prefix}${strip_default}"
2309
2310 sysinclude_default="${sysroot}/usr/include"
2311
2312 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2313 enabled cross_compile || host_cc_default=$cc
2314 set_default host_cc
2315
2316 if ! $pkg_config --version >/dev/null 2>&1; then
2317     warn "$pkg_config not found, library detection may fail."
2318     pkg_config=false
2319 fi
2320
2321 exesuf() {
2322     case $1 in
2323         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2324     esac
2325 }
2326
2327 EXESUF=$(exesuf $target_os)
2328 HOSTEXESUF=$(exesuf $host_os)
2329
2330 # set temporary file name
2331 : ${TMPDIR:=$TEMPDIR}
2332 : ${TMPDIR:=$TMP}
2333 : ${TMPDIR:=/tmp}
2334
2335 if ! check_cmd mktemp -u XXXXXX; then
2336     # simple replacement for missing mktemp
2337     # NOT SAFE FOR GENERAL USE
2338     mktemp(){
2339         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2340     }
2341 fi
2342
2343 tmpfile(){
2344     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2345         (set -C; exec > $tmp) 2>/dev/null ||
2346         die "Unable to create temporary file in $TMPDIR."
2347     append TMPFILES $tmp
2348     eval $1=$tmp
2349 }
2350
2351 trap 'rm -f -- $TMPFILES' EXIT
2352
2353 tmpfile TMPASM .asm
2354 tmpfile TMPC   .c
2355 tmpfile TMPCPP .cpp
2356 tmpfile TMPE   $EXESUF
2357 tmpfile TMPH   .h
2358 tmpfile TMPO   .o
2359 tmpfile TMPS   .S
2360 tmpfile TMPSH  .sh
2361 tmpfile TMPV   .ver
2362
2363 unset -f mktemp
2364
2365 chmod +x $TMPE
2366
2367 # make sure we can execute files in $TMPDIR
2368 cat > $TMPSH 2>> $logfile <<EOF
2369 #! /bin/sh
2370 EOF
2371 chmod +x $TMPSH >> $logfile 2>&1
2372 if ! $TMPSH >> $logfile 2>&1; then
2373     cat <<EOF
2374 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2375 variable to another directory and make sure that it is not mounted noexec.
2376 EOF
2377     die "Sanity test failed."
2378 fi
2379
2380 pgi_flags(){
2381     for flag; do
2382         case $flag in
2383             -fomit-frame-pointer) echo -Mnoframe ;;
2384             -g)                   echo -gopt ;;
2385             *)                    echo $flag ;;
2386         esac
2387     done
2388 }
2389
2390 suncc_flags(){
2391     for flag; do
2392         case $flag in
2393             -march=*|-mcpu=*)
2394                 case "${flag#*=}" in
2395                     native)                   echo -xtarget=native       ;;
2396                     v9|niagara)               echo -xarch=sparc          ;;
2397                     ultrasparc)               echo -xarch=sparcvis       ;;
2398                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2399                     i586|pentium)             echo -xchip=pentium        ;;
2400                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2401                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2402                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2403                     pentium4*)          echo -xtarget=pentium4           ;;
2404                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2405                     *-sse3)             echo -xarch=sse3                 ;;
2406                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2407                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2408                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2409                     k8|opteron|athlon64|athlon-fx)
2410                                               echo -xarch=sse2a          ;;
2411                     athlon*)                  echo -xarch=pentium_proa   ;;
2412                 esac
2413                 ;;
2414             -std=c99)             echo -xc99              ;;
2415             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2416             -fPIC)                echo -KPIC -xcode=pic32 ;;
2417             -W*,*)                echo $flag              ;;
2418             -f*-*|-W*)                                    ;;
2419             *)                    echo $flag              ;;
2420         esac
2421     done
2422 }
2423
2424 tms470_flags(){
2425     for flag; do
2426         case $flag in
2427             -march=*|-mcpu=*)
2428                 case "${flag#*=}" in
2429                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2430                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2431                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2432                     armv6*|arm11*)          echo -mv=6   ;;
2433                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2434                                             echo -mv=5e  ;;
2435                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2436                 esac
2437                 ;;
2438             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2439             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2440             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2441             -msoft-float)   echo --float_support=vfplib       ;;
2442             -O[0-3]|-mf=*)  echo $flag                        ;;
2443             -g)             echo -g -mn                       ;;
2444             -pds=*)         echo $flag                        ;;
2445             -D*|-I*)        echo $flag                        ;;
2446             --gcc|--abi=*)  echo $flag                        ;;
2447             -me)            echo $flag                        ;;
2448         esac
2449     done
2450 }
2451
2452 probe_cc(){
2453     pfx=$1
2454     _cc=$2
2455
2456     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2457     unset _ld_o _ldflags _ld_lib _ld_path
2458     unset _depflags _DEPCMD _DEPFLAGS
2459     _flags_filter=echo
2460
2461     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2462         _type=llvm_gcc
2463         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2464         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2465         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2466         _cflags_speed='-O3'
2467         _cflags_size='-Os'
2468     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2469         _type=gcc
2470         gcc_version=$($_cc --version | head -n1)
2471         gcc_basever=$($_cc -dumpversion)
2472         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2473         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2474         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2475         if ! $_cc -dumpversion | grep -q '^2\.'; then
2476             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2477         fi
2478         _cflags_speed='-O3'
2479         _cflags_size='-Os'
2480     elif $_cc --version 2>/dev/null | grep -q Intel; then
2481         _type=icc
2482         _ident=$($_cc --version | head -n1)
2483         _depflags='-MMD'
2484         _cflags_speed='-O3'
2485         _cflags_size='-Os'
2486         _cflags_noopt='-O1'
2487     elif $_cc -v 2>&1 | grep -q xlc; then
2488         _type=xlc
2489         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2490         _cflags_speed='-O5'
2491         _cflags_size='-O5 -qcompact'
2492     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2493         _type=ccc
2494         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2495         _DEPFLAGS='-M'
2496         debuglevel=3
2497         _ldflags='-Wl,-z,now' # calls to libots crash without this
2498         _cflags_speed='-fast'
2499         _cflags_size='-O1'
2500     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2501         test -d "$sysroot" || die "No valid sysroot specified."
2502         _type=armcc
2503         _ident=$($_cc --vsn | head -n1)
2504         armcc_conf="$PWD/armcc.conf"
2505         $_cc --arm_linux_configure                 \
2506              --arm_linux_config_file="$armcc_conf" \
2507              --configure_sysroot="$sysroot"        \
2508              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2509              die "Error creating armcc configuration file."
2510         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2511         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2512         as_default="${cross_prefix}gcc"
2513         _depflags='-MMD'
2514         _cflags_speed='-O3'
2515         _cflags_size='-Os'
2516     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2517         _type=tms470
2518         _ident=$($_cc -version | head -n1 | tr -s ' ')
2519         _flags='--gcc --abi=eabi -me'
2520         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2521         _cc_e='-ppl -fe=$@'
2522         _cc_o='-fe=$@'
2523         as_default="${cross_prefix}gcc"
2524         ld_default="${cross_prefix}gcc"
2525         _depflags='-ppa -ppd=$(@:.o=.d)'
2526         _cflags_speed='-O3 -mf=5'
2527         _cflags_size='-O3 -mf=2'
2528         _flags_filter=tms470_flags
2529     elif $_cc -v 2>&1 | grep -q clang; then
2530         _type=clang
2531         _ident=$($_cc --version | head -n1)
2532         _depflags='-MMD'
2533         _cflags_speed='-O3'
2534         _cflags_size='-Os'
2535     elif $_cc -V 2>&1 | grep -q Sun; then
2536         _type=suncc
2537         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2538         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2539         _DEPFLAGS='-xM1 -xc99'
2540         _ldflags='-std=c99'
2541         _cflags_speed='-O5'
2542         _cflags_size='-O5 -xspace'
2543         _flags_filter=suncc_flags
2544     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2545         _type=pathscale
2546         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2547         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2548         _cflags_speed='-O2'
2549         _cflags_size='-Os'
2550         _flags_filter='filter_out -Wdisabled-optimization'
2551     elif $_cc -v 2>&1 | grep -q Open64; then
2552         _type=open64
2553         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2554         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2555         _cflags_speed='-O2'
2556         _cflags_size='-Os'
2557         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2558     elif $_cc -V 2>&1 | grep -q Portland; then
2559         _type=pgi
2560         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2561         opt_common='-alias=ansi -Mlre -Mpre'
2562         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2563         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2564         _cflags_noopt="-O1"
2565         _flags_filter=pgi_flags
2566     fi
2567
2568     eval ${pfx}_type=\$_type
2569     eval ${pfx}_ident=\$_ident
2570 }
2571
2572 set_ccvars(){
2573     eval ${1}_C=\${_cc_c-\${${1}_C}}
2574     eval ${1}_E=\${_cc_e-\${${1}_E}}
2575     eval ${1}_O=\${_cc_o-\${${1}_O}}
2576
2577     if [ -n "$_depflags" ]; then
2578         eval ${1}_DEPFLAGS=\$_depflags
2579     else
2580         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2581         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2582         eval DEP${1}FLAGS=\$_flags
2583     fi
2584 }
2585
2586 probe_cc cc "$cc"
2587 cflags_filter=$_flags_filter
2588 cflags_speed=$_cflags_speed
2589 cflags_size=$_cflags_size
2590 cflags_noopt=$_cflags_noopt
2591 add_cflags $_flags $_cflags
2592 cc_ldflags=$_ldflags
2593 set_ccvars CC
2594
2595 probe_cc hostcc "$host_cc"
2596 host_cflags_filter=$_flags_filter
2597 add_host_cflags  $_flags $_cflags
2598 set_ccvars HOSTCC
2599
2600 test -n "$cc_type" && enable $cc_type ||
2601     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2602
2603 : ${as_default:=$cc}
2604 : ${dep_cc_default:=$cc}
2605 : ${ld_default:=$cc}
2606 : ${host_ld_default:=$host_cc}
2607 set_default ar as dep_cc ld host_ld
2608
2609 probe_cc as "$as"
2610 asflags_filter=$_flags_filter
2611 add_asflags $_flags $_cflags
2612 set_ccvars AS
2613
2614 probe_cc ld "$ld"
2615 ldflags_filter=$_flags_filter
2616 add_ldflags $_flags $_ldflags
2617 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2618 LD_O=${_ld_o-$LD_O}
2619 LD_LIB=${_ld_lib-$LD_LIB}
2620 LD_PATH=${_ld_path-$LD_PATH}
2621
2622 probe_cc hostld "$host_ld"
2623 host_ldflags_filter=$_flags_filter
2624 add_host_ldflags $_flags $_ldflags
2625 HOSTLD_O=${_ld_o-$HOSTLD_O}
2626
2627 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2628     probe_cc depcc "$dep_cc"
2629     CCDEP=${_DEPCMD:-$DEPCMD}
2630     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2631     DEPCCFLAGS=$_flags
2632 fi
2633
2634 add_cflags $extra_cflags
2635 add_cxxflags $extra_cxxflags
2636 add_asflags $extra_cflags
2637
2638 if test -n "$sysroot"; then
2639     case "$cc_type" in
2640         gcc|llvm_gcc|clang)
2641             add_cppflags --sysroot="$sysroot"
2642             add_ldflags --sysroot="$sysroot"
2643         ;;
2644         tms470)
2645             add_cppflags -I"$sysinclude"
2646             add_ldflags  --sysroot="$sysroot"
2647         ;;
2648     esac
2649 fi
2650
2651 if test "$cpu" = host; then
2652     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2653
2654     case "$cc_type" in
2655         gcc|llvm_gcc)
2656             check_native(){
2657                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2658                 sed -n "/cc1.*$1=/{
2659                             s/.*$1=\\([^ ]*\\).*/\\1/
2660                             p
2661                             q
2662                         }" $TMPE
2663             }
2664             cpu=$(check_native -march || check_native -mcpu)
2665         ;;
2666     esac
2667
2668     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2669 fi
2670
2671 # Deal with common $arch aliases
2672 case "$arch" in
2673     arm*|iPad*)
2674         arch="arm"
2675     ;;
2676     mips|mipsel|IP*)
2677         arch="mips"
2678     ;;
2679     mips64*)
2680         arch="mips"
2681         subarch="mips64"
2682     ;;
2683     parisc|hppa)
2684         arch="parisc"
2685     ;;
2686     parisc64|hppa64)
2687         arch="parisc"
2688         subarch="parisc64"
2689     ;;
2690     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2691         arch="ppc"
2692     ;;
2693     s390|s390x)
2694         arch="s390"
2695     ;;
2696     sh4|sh)
2697         arch="sh4"
2698     ;;
2699     sun4u|sparc64)
2700         arch="sparc"
2701         subarch="sparc64"
2702     ;;
2703     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2704         arch="x86"
2705     ;;
2706 esac
2707
2708 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2709 enable $arch
2710
2711 # Add processor-specific flags
2712 if test "$cpu" = generic; then
2713     : do nothing
2714 elif enabled ppc; then
2715
2716     case $(tolower $cpu) in
2717         601|ppc601|powerpc601)
2718             cpuflags="-mcpu=601"
2719             disable altivec
2720         ;;
2721         603*|ppc603*|powerpc603*)
2722             cpuflags="-mcpu=603"
2723             disable altivec
2724         ;;
2725         604*|ppc604*|powerpc604*)
2726             cpuflags="-mcpu=604"
2727             disable altivec
2728         ;;
2729         g3|75*|ppc75*|powerpc75*)
2730             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2731             disable altivec
2732         ;;
2733         g4|745*|ppc745*|powerpc745*)
2734             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2735         ;;
2736         74*|ppc74*|powerpc74*)
2737             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2738         ;;
2739         g5|970|ppc970|powerpc970)
2740             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2741         ;;
2742         power[3-7]*)
2743             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2744         ;;
2745         cell)
2746             cpuflags="-mcpu=cell"
2747             enable ldbrx
2748         ;;
2749         e500mc)
2750             cpuflags="-mcpu=e500mc"
2751             disable altivec
2752         ;;
2753         e500v2)
2754             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2755             disable altivec
2756         ;;
2757         e500)
2758             cpuflags="-mcpu=8540 -mhard-float"
2759             disable altivec
2760         ;;
2761     esac
2762
2763 elif enabled x86; then
2764
2765     case $cpu in
2766         i[345]86|pentium)
2767             cpuflags="-march=$cpu"
2768             disable mmx
2769         ;;
2770         # targets that do NOT support conditional mov (cmov)
2771         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2772             cpuflags="-march=$cpu"
2773             disable cmov
2774         ;;
2775         # targets that do support conditional mov (cmov)
2776         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2777             cpuflags="-march=$cpu"
2778             enable cmov
2779             enable fast_cmov
2780         ;;
2781         # targets that do support conditional mov but on which it's slow
2782         pentium4|pentium4m|prescott|nocona)
2783             cpuflags="-march=$cpu"
2784             enable cmov
2785             disable fast_cmov
2786         ;;
2787     esac
2788
2789 elif enabled sparc; then
2790
2791     case $cpu in
2792         niagara)
2793             cpuflags="-mcpu=$cpu"
2794             disable vis
2795         ;;
2796         sparc64)
2797             cpuflags="-mcpu=v9"
2798         ;;
2799     esac
2800
2801 elif enabled arm; then
2802
2803     case $cpu in
2804         armv*)
2805             cpuflags="-march=$cpu"
2806             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2807         ;;
2808         *)
2809             cpuflags="-mcpu=$cpu"
2810             case $cpu in
2811                 cortex-a*)                               subarch=armv7a  ;;
2812                 cortex-r*)                               subarch=armv7r  ;;
2813                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2814                 arm11*)                                  subarch=armv6   ;;
2815                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2816                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2817             esac
2818         ;;
2819     esac
2820
2821 elif enabled alpha; then
2822
2823     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2824
2825 elif enabled bfin; then
2826
2827     cpuflags="-mcpu=$cpu"
2828
2829 elif enabled mips; then
2830
2831     cpuflags="-march=$cpu"
2832
2833     case $cpu in
2834         24kc)
2835             disable mipsfpu
2836             disable mipsdspr1
2837             disable mipsdspr2
2838         ;;
2839         24kf*)
2840             disable mipsdspr1
2841             disable mipsdspr2
2842         ;;
2843         24kec|34kc|1004kc)
2844             disable mipsfpu
2845             disable mipsdspr2
2846         ;;
2847         24kef*|34kf*|1004kf*)
2848             disable mipsdspr2
2849         ;;
2850         74kc)
2851             disable mipsfpu
2852         ;;
2853     esac
2854
2855 elif enabled avr32; then
2856
2857     case $cpu in
2858         ap7[02]0[0-2])
2859             subarch="avr32_ap"
2860             cpuflags="-mpart=$cpu"
2861         ;;
2862         ap)
2863             subarch="avr32_ap"
2864             cpuflags="-march=$cpu"
2865         ;;
2866         uc3[ab]*)
2867             subarch="avr32_uc"
2868             cpuflags="-mcpu=$cpu"
2869         ;;
2870         uc)
2871             subarch="avr32_uc"
2872             cpuflags="-march=$cpu"
2873         ;;
2874     esac
2875
2876 fi
2877
2878 add_cflags $cpuflags
2879 add_asflags $cpuflags
2880
2881 # compiler sanity check
2882 check_exec <<EOF
2883 int main(void){ return 0; }
2884 EOF
2885 if test "$?" != 0; then
2886     echo "$cc is unable to create an executable file."
2887     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2888         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2889         echo "Only do this if you know what cross compiling means."
2890     fi
2891     die "C compiler test failed."
2892 fi
2893
2894 add_cppflags -D_ISOC99_SOURCE
2895 add_cxxflags -D__STDC_CONSTANT_MACROS
2896 check_cflags -std=c99
2897 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2898 #include <stdlib.h>
2899 EOF
2900 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2901 #include <stdlib.h>
2902 EOF
2903
2904 check_host_cflags -std=c99
2905 check_host_cflags -Wall
2906
2907 case "$arch" in
2908     alpha|ia64|mips|parisc|sparc)
2909         spic=$shared
2910     ;;
2911     x86)
2912         subarch="x86_32"
2913         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2914         if test "$subarch" = "x86_64"; then
2915             spic=$shared
2916         fi
2917     ;;
2918     ppc)
2919         check_cc <<EOF && subarch="ppc64"
2920         int test[(int)sizeof(char*) - 7];
2921 EOF
2922     ;;
2923 esac
2924
2925 enable $subarch
2926 enabled spic && enable pic
2927
2928 # OS specific
2929 case $target_os in
2930     haiku)
2931         prefix_default="/boot/common"
2932         network_extralibs="-lnetwork"
2933         host_libs=
2934         ;;
2935     sunos)
2936         FFSERVERLDFLAGS=""
2937         SHFLAGS='-shared -Wl,-h,$$(@F)'
2938         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2939         network_extralibs="-lsocket -lnsl"
2940         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2941         # When using suncc to build, the Solaris linker will mark
2942         # an executable with each instruction set encountered by
2943         # the Solaris assembler.  As our libraries contain their own
2944         # guards for processor-specific code, instead suppress
2945         # generation of the HWCAPS ELF section on Solaris x86 only.
2946         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2947         nm_opts='-P -g'
2948         ;;
2949     netbsd)
2950         disable symver
2951         oss_indev_extralibs="-lossaudio"
2952         oss_outdev_extralibs="-lossaudio"
2953         ;;
2954     openbsd|bitrig)
2955         # On OpenBSD 4.5. the compiler does not use PIC unless
2956         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2957         # however the generated executable will not do anything
2958         # (simply quits with exit-code 1, no crash, no output).
2959         # Thus explicitly enable PIC here.
2960         enable pic
2961         disable symver
2962         SHFLAGS='-shared'
2963         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2964         SLIB_INSTALL_LINKS=
2965         oss_indev_extralibs="-lossaudio"
2966         oss_outdev_extralibs="-lossaudio"
2967         ;;
2968     dragonfly)
2969         disable symver
2970         ;;
2971     freebsd)
2972         ;;
2973     bsd/os)
2974         add_extralibs -lpoll -lgnugetopt
2975         strip="strip -d"
2976         ;;
2977     darwin)
2978         gas="gas-preprocessor.pl $cc"
2979         enabled ppc && add_asflags -force_cpusubtype_ALL
2980         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2981         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2982         strip="${strip} -x"
2983         add_ldflags -Wl,-dynamic,-search_paths_first
2984         SLIBSUF=".dylib"
2985         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2986         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2987         FFSERVERLDFLAGS=-Wl,-bind_at_load
2988         objformat="macho"
2989         enabled x86_64 && objformat="macho64"
2990         enabled_any pic shared ||
2991             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2992         ;;
2993     mingw32*)
2994         if test $target_os = "mingw32ce"; then
2995             disable network
2996         else
2997             target_os=mingw32
2998         fi
2999         LIBTARGET=i386
3000         if enabled x86_64; then
3001             LIBTARGET="i386:x86-64"
3002         elif enabled arm; then
3003             LIBTARGET=arm-wince
3004         fi
3005         shlibdir_default="$bindir_default"
3006         SLIBPREF=""
3007         SLIBSUF=".dll"
3008         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3009         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3010         dlltool="${cross_prefix}dlltool"
3011         if check_cmd lib.exe -list; then
3012             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3013             if enabled x86_64; then
3014                 LIBTARGET=x64
3015             fi
3016         elif check_cmd $dlltool --version; then
3017             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3018         fi
3019         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3020         SLIB_INSTALL_LINKS=
3021         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3022         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3023         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3024         objformat="win32"
3025         ranlib=:
3026         enable dos_paths
3027         check_cflags -fno-common
3028         add_cppflags -U__STRICT_ANSI__
3029         ;;
3030     cygwin*)
3031         target_os=cygwin
3032         shlibdir_default="$bindir_default"
3033         SLIBPREF="cyg"
3034         SLIBSUF=".dll"
3035         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3036         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3037         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3038         SLIB_INSTALL_LINKS=
3039         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3040         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3041         objformat="win32"
3042         enable dos_paths
3043         check_cflags -fno-common
3044         add_cppflags -U__STRICT_ANSI__
3045         ;;
3046     *-dos|freedos|opendos)
3047         network_extralibs="-lsocket"
3048         objformat="coff"
3049         enable dos_paths
3050         add_cppflags -U__STRICT_ANSI__
3051         ;;
3052     linux)
3053         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3054         enable dv1394
3055         ;;
3056     irix*)
3057         target_os=irix
3058         ranlib="echo ignoring ranlib"
3059         ;;
3060     os/2*)
3061         strip="lxlite -CS"
3062         ln_s="cp -f"
3063         objformat="aout"
3064         add_cppflags -D_GNU_SOURCE
3065         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3066         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3067         FFSERVERLDFLAGS=""
3068         LIBSUF="_s.a"
3069         SLIBPREF=""
3070         SLIBSUF=".dll"
3071         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3072         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3073         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3074           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3075           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3076           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3077           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3078           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3079         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3080           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3081         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3082         enable dos_paths
3083         enable_weak os2threads
3084         ;;
3085     gnu/kfreebsd)
3086         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3087         ;;
3088     gnu)
3089         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3090         ;;
3091     qnx)
3092         add_cppflags -D_QNX_SOURCE
3093         network_extralibs="-lsocket"
3094         ;;
3095     symbian)
3096         SLIBSUF=".dll"
3097         enable dos_paths
3098         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3099         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3100         add_ldflags -Wl,--target1-abs,--no-undefined \
3101                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3102                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3103         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3104                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3105                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3106         ;;
3107     none)
3108         ;;
3109     *)
3110         die "Unknown OS '$target_os'."
3111         ;;
3112 esac
3113
3114 # determine libc flavour
3115
3116 if check_cpp_condition features.h "defined __UCLIBC__"; then
3117     libc_type=uclibc
3118 elif check_cpp_condition features.h "defined __GLIBC__"; then
3119     libc_type=glibc
3120 elif check_header _mingw.h; then
3121     libc_type=mingw
3122     check_cpp_condition _mingw.h \
3123         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3124             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3125         die "ERROR: MinGW runtime version must be >= 3.15."
3126 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3127     libc_type=newlib
3128 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3129     libc_type=klibc
3130 fi
3131
3132 test -n "$libc_type" && enable $libc_type
3133
3134 esc(){
3135     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3136 }
3137
3138 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3139
3140 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3141
3142 set_default $PATHS_LIST
3143
3144 # we need to build at least one lib type
3145 if ! enabled_any static shared; then
3146     cat <<EOF
3147 At least one library type must be built.
3148 Specify --enable-static to build the static libraries or --enable-shared to
3149 build the shared libraries as well. To only build the shared libraries specify
3150 --disable-static in addition to --enable-shared.
3151 EOF
3152     exit 1;
3153 fi
3154
3155 die_license_disabled() {
3156     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3157 }
3158
3159 die_license_disabled_gpl() {
3160     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3161 }
3162
3163 die_license_disabled gpl libcdio
3164 die_license_disabled gpl libutvideo
3165 die_license_disabled gpl libx264
3166 die_license_disabled gpl libxavs
3167 die_license_disabled gpl libxvid
3168 die_license_disabled gpl x11grab
3169
3170 die_license_disabled nonfree libaacplus
3171 die_license_disabled nonfree libfaac
3172 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3173 enabled gpl && die_license_disabled_gpl nonfree openssl
3174
3175 die_license_disabled version3 libopencore_amrnb
3176 die_license_disabled version3 libopencore_amrwb
3177 die_license_disabled version3 libvo_aacenc
3178 die_license_disabled version3 libvo_amrwbenc
3179
3180 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3181
3182 disabled optimizations || check_cflags -fomit-frame-pointer
3183
3184 enable_pic() {
3185     enable pic
3186     add_cppflags -DPIC
3187     add_cflags   -fPIC
3188     add_asflags  -fPIC
3189 }
3190
3191 enabled pic && enable_pic
3192
3193 check_cc <<EOF || die "Symbol mangling check failed."
3194 int ff_extern;
3195 EOF
3196 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3197 extern_prefix=${sym%%ff_extern*}
3198
3199 check_cc <<EOF && enable inline_asm
3200 void foo(void) { __asm__ volatile ("" ::); }
3201 EOF
3202
3203 _restrict=
3204 for restrict_keyword in restrict __restrict__ __restrict; do
3205     check_cc <<EOF && _restrict=$restrict_keyword && break
3206 void foo(char * $restrict_keyword p);
3207 EOF
3208 done
3209
3210 check_cc <<EOF && enable attribute_packed
3211 struct { int x; } __attribute__((packed)) x;
3212 EOF
3213
3214 check_cc <<EOF && enable attribute_may_alias
3215 union { int x; } __attribute__((may_alias)) x;
3216 EOF
3217
3218 check_cc <<EOF || die "endian test failed"
3219 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3220 EOF
3221 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3222
3223 if enabled alpha; then
3224
3225     check_cflags -mieee
3226
3227 elif enabled arm; then
3228
3229     enabled thumb && check_cflags -mthumb || check_cflags -marm
3230     nogas=die
3231
3232     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3233         enable vfp_args
3234     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3235         case "${cross_prefix:-$cc}" in
3236             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3237             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3238 __asm__ (".eabi_attribute 28, 1");
3239 int main(void) { return 0; }
3240 EOF
3241         esac
3242         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3243     fi
3244
3245     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3246     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3247     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3248     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3249     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3250     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3251
3252     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3253     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3254
3255     enabled_all armv6t2 shared !pic && enable_pic
3256
3257 elif enabled mips; then
3258
3259     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3260     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3261     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3262      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3263     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3264      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3265     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3266      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3267     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3268      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3269
3270 elif enabled ppc; then
3271
3272     enable local_aligned_8 local_aligned_16
3273
3274     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3275     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3276     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3277     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3278
3279     # AltiVec flags: The FSF version of GCC differs from the Apple version
3280     if enabled altivec; then
3281         nogas=warn
3282         check_cflags -maltivec -mabi=altivec &&
3283         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3284         check_cflags -faltivec
3285
3286         # check if our compiler supports Motorola AltiVec C API
3287         check_cc <<EOF || disable altivec
3288 $inc_altivec_h
3289 int main(void) {
3290     vector signed int v1 = (vector signed int) { 0 };
3291     vector signed int v2 = (vector signed int) { 1 };
3292     v1 = vec_add(v1, v2);
3293     return 0;
3294 }
3295 EOF
3296
3297         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3298     fi
3299
3300 elif enabled sparc; then
3301
3302     enabled vis &&
3303         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3304         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3305
3306 elif enabled x86; then
3307
3308     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3309     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3310     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3311     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3312
3313     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3314
3315     enable local_aligned_8 local_aligned_16
3316
3317     # check whether EBP is available on x86
3318     # As 'i' is stored on the stack, this program will crash
3319     # if the base pointer is used to access it because the
3320     # base pointer is cleared in the inline assembly code.
3321     check_exec_crash <<EOF && enable ebp_available
3322     volatile int i=0;
3323     __asm__ volatile (
3324         "xorl %%ebp, %%ebp"
3325     ::: "%ebp");
3326     return i;
3327 EOF
3328
3329     # check whether EBX is available on x86
3330     check_inline_asm ebx_available '""::"b"(0)' &&
3331         check_inline_asm ebx_available '"":::"%ebx"'
3332
3333     # check whether xmm clobbers are supported
3334     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3335
3336     # check whether binutils is new enough to compile SSSE3/MMXEXT
3337     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3338     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3339
3340     if ! disabled_any asm mmx yasm; then
3341         if check_cmd $yasmexe --version; then
3342             enabled x86_64 && yasm_extra="-m amd64"
3343             yasm_debug="-g dwarf2"
3344         elif check_cmd nasm -v; then
3345             yasmexe=nasm
3346             yasm_debug="-g -F dwarf"
3347             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3348         fi
3349
3350         YASMFLAGS="-f $objformat $yasm_extra"
3351         enabled pic               && append YASMFLAGS "-DPIC"
3352         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3353         case "$objformat" in
3354             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3355         esac
3356
3357         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3358             die "yasm not found, use --disable-yasm for a crippled build"
3359         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3360         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3361         check_yasm "CPU amdnop" && enable cpunop
3362     fi
3363
3364     case "$cpu" in
3365         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3366             disable fast_clz
3367         ;;
3368     esac
3369
3370 fi
3371
3372 if enabled asm; then
3373     as=${gas:=$as}
3374     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3375         $nogas "GNU assembler not found, install gas-preprocessor"
3376 fi
3377
3378 check_ldflags -Wl,--as-needed
3379
3380 if check_func dlopen; then
3381     ldl=
3382 elif check_func dlopen -ldl; then
3383     ldl=-ldl
3384 fi
3385
3386 if enabled network; then
3387     check_type "sys/types.h sys/socket.h" socklen_t
3388     check_type netdb.h "struct addrinfo"
3389     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3390     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3391     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3392     check_type netinet/in.h "struct sockaddr_in6"
3393     check_type poll.h "struct pollfd"
3394     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3395     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3396     check_type netinet/sctp.h "struct sctp_event_subscribe"
3397     check_func getaddrinfo $network_extralibs
3398     # Prefer arpa/inet.h over winsock2
3399     if check_header arpa/inet.h ; then
3400         check_func closesocket
3401     elif check_header winsock2.h ; then
3402         check_func_headers winsock2.h closesocket -lws2 &&
3403             network_extralibs="-lws2" ||
3404         { check_func_headers winsock2.h closesocket -lws2_32 &&
3405             network_extralibs="-lws2_32"; }
3406         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3407         check_type ws2tcpip.h socklen_t
3408         check_type ws2tcpip.h "struct addrinfo"
3409         check_type ws2tcpip.h "struct group_source_req"
3410         check_type ws2tcpip.h "struct ip_mreq_source"
3411         check_type ws2tcpip.h "struct ipv6_mreq"
3412         check_type winsock2.h "struct pollfd"
3413         check_type ws2tcpip.h "struct sockaddr_in6"
3414         check_type ws2tcpip.h "struct sockaddr_storage"
3415         check_struct winsock2.h "struct sockaddr" sa_len
3416     else
3417         disable network
3418     fi
3419 fi
3420
3421 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3422 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3423
3424 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3425 check_func  fcntl
3426 check_func  fork
3427 check_func  gethrtime
3428 check_func  getopt
3429 check_func  getrusage
3430 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3431 check_func  gettimeofday
3432 check_func  inet_aton $network_extralibs
3433 check_func  isatty
3434 check_func  localtime_r
3435 check_func  ${malloc_prefix}memalign            && enable memalign
3436 check_func  mkstemp
3437 check_func  mmap
3438 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3439 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3440 check_func  setrlimit
3441 check_func  snprintf
3442 check_func  strerror_r
3443 check_func  sched_getaffinity
3444 check_func  sysconf
3445 check_func  sysctl
3446 check_func  usleep
3447 check_func_headers conio.h kbhit
3448 check_func_headers windows.h PeekNamedPipe
3449 check_func_headers io.h setmode
3450 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3451 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3452 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3453 check_func_headers windows.h GetProcessAffinityMask
3454 check_func_headers windows.h GetProcessTimes
3455 check_func_headers windows.h GetSystemTimeAsFileTime
3456 check_func_headers windows.h MapViewOfFile
3457 check_func_headers windows.h Sleep
3458 check_func_headers windows.h VirtualAlloc
3459 check_func_headers glob.h glob
3460
3461 # Check for MSVCRT; it has a broken strtod() that can't parse some input.
3462 # Use old dos symbol to detect it. If we are on mingw, it already provides
3463 # its own replacement and we don't need to redo that.
3464 if check_func _get_doserrno; then
3465     if test $target_os != mingw32; then
3466         enable broken_strtod
3467     fi
3468 fi
3469
3470 check_header dlfcn.h
3471 check_header dxva.h
3472 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3473 check_header libcrystalhd/libcrystalhd_if.h
3474 check_header malloc.h
3475 check_header poll.h
3476 check_header sys/mman.h
3477 check_header sys/param.h
3478 check_header sys/resource.h
3479 check_header sys/select.h
3480 check_header sys/time.h
3481 check_header termios.h
3482 check_header unistd.h
3483 check_header vdpau/vdpau.h
3484 check_header vdpau/vdpau_x11.h
3485 check_header windows.h
3486 check_header X11/extensions/XvMClib.h
3487 check_header asm/types.h
3488
3489 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3490 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3491
3492 # check for VDA header
3493 if ! disabled vda; then
3494     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3495         enable vda
3496         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3497     fi
3498 fi
3499
3500 if ! disabled w32threads && ! enabled pthreads; then
3501     check_func _beginthreadex && enable w32threads
3502 fi
3503
3504 # check for some common methods of building with pthread support
3505 # do this before the optional library checks as some of them require pthreads
3506 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3507     enable pthreads
3508     if check_func pthread_create; then
3509         :
3510     elif check_func pthread_create -pthread; then
3511         add_cflags -pthread
3512         add_extralibs -pthread
3513     elif check_func pthread_create -pthreads; then
3514         add_cflags -pthreads
3515         add_extralibs -pthreads
3516     elif check_func pthread_create -lpthreadGC2; then
3517         add_extralibs -lpthreadGC2
3518     elif ! check_lib pthread.h pthread_create -lpthread; then
3519         disable pthreads
3520     fi
3521 fi
3522
3523 for thread in $THREADS_LIST; do
3524     if enabled $thread; then
3525         test -n "$thread_type" &&
3526             die "ERROR: Only one thread type must be selected." ||
3527             thread_type="$thread"
3528     fi
3529 done
3530
3531 if enabled pthreads; then
3532   check_func pthread_cancel
3533 fi
3534
3535 check_lib math.h sin -lm && LIBM="-lm"
3536 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3537 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3538
3539 check_mathfunc cbrtf
3540 check_mathfunc exp2
3541 check_mathfunc exp2f
3542 check_mathfunc isinf
3543 check_mathfunc isnan
3544 check_mathfunc llrint
3545 check_mathfunc llrintf
3546 check_mathfunc log2
3547 check_mathfunc log2f
3548 check_mathfunc lrint
3549 check_mathfunc lrintf
3550 check_mathfunc rint
3551 check_mathfunc round
3552 check_mathfunc roundf
3553 check_mathfunc trunc
3554 check_mathfunc truncf
3555
3556 # these are off by default, so fail if requested and not available
3557 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3558 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3559 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3560 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3561 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3562 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3563 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3564 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3565 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3566                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3567                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3568 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3569 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3570 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3571 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"
3572 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3573 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3574 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3575 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3576 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3577 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3578 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3579 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3580 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3581 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3582 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3583 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3584 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3585 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3586 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3587 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3588 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3589     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3590     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3591 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3592 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3593                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3594                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3595 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3596 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3597 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3598 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3599 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3600 enabled libvpx     && {
3601     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3602                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3603     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3604                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3605 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3606                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3607                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3608 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3609 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3610 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3611                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3612                         die "ERROR: openal not found"; } &&
3613                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3614                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3615 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3616                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3617                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3618                         die "ERROR: openssl not found"; }
3619
3620 if enabled gnutls; then
3621     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3622     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3623 fi
3624
3625 # libdc1394 check
3626 if enabled libdc1394; then
3627     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3628         enable libdc1394_2; } ||
3629     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3630         enable libdc1394_1; } ||
3631     die "ERROR: No version of libdc1394 found "
3632 fi
3633
3634 SDL_CONFIG="${cross_prefix}sdl-config"
3635 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3636     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3637     enable sdl &&
3638     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3639 else
3640   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3641     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3642     sdl_libs=$("${SDL_CONFIG}" --libs)
3643     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3644     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3645     enable sdl &&
3646     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3647   fi
3648 fi
3649 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3650
3651 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3652 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3653 perl --version > /dev/null 2>&1 && enable perl || disable perl
3654 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3655
3656 check_header linux/fb.h
3657 check_header linux/videodev.h
3658 check_header linux/videodev2.h
3659 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3660
3661 check_header sys/videoio.h
3662
3663 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3664 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3665 # w32api 3.12 had it defined wrong
3666 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3667
3668 check_type "dshow.h" IBaseFilter
3669
3670 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3671 { check_header dev/bktr/ioctl_meteor.h &&
3672   check_header dev/bktr/ioctl_bt848.h; } ||
3673 { check_header machine/ioctl_meteor.h &&
3674   check_header machine/ioctl_bt848.h; } ||
3675 { check_header dev/video/meteor/ioctl_meteor.h &&
3676   check_header dev/video/bktr/ioctl_bt848.h; } ||
3677 check_header dev/ic/bt8xx.h
3678
3679 check_header sndio.h
3680 if check_struct sys/soundcard.h audio_buf_info bytes; then
3681     enable_safe sys/soundcard.h
3682 else
3683     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3684     #include <sys/soundcard.h>
3685     audio_buf_info abc;
3686 EOF
3687 fi
3688 check_header soundcard.h
3689
3690 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3691
3692 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3693     check_func jack_port_get_latency_range -ljack
3694
3695 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3696
3697 enabled libcdio &&
3698     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3699
3700 enabled x11grab                                           &&
3701 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3702 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3703 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3704
3705 if ! disabled vaapi; then
3706     check_lib va/va.h vaInitialize -lva && {
3707         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3708         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3709     } || disable vaapi
3710 fi
3711
3712 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3713 check_cpp_condition \
3714     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3715     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3716       disable vdpau; }
3717 fi
3718
3719 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3720 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3721 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"
3722
3723 # add some useful compiler flags if supported
3724 check_cflags -Wdeclaration-after-statement
3725 check_cflags -Wall
3726 check_cflags -Wno-parentheses
3727 check_cflags -Wno-switch
3728 check_cflags -Wno-format-zero-length
3729 check_cflags -Wdisabled-optimization
3730 check_cflags -Wpointer-arith
3731 check_cflags -Wredundant-decls
3732 check_cflags -Wno-pointer-sign
3733 check_cflags -Wwrite-strings
3734 check_cflags -Wtype-limits
3735 check_cflags -Wundef
3736 check_cflags -Wmissing-prototypes
3737 check_cflags -Wno-pointer-to-int-cast
3738 check_cflags -Wstrict-prototypes
3739 enabled extra_warnings && check_cflags -Winline
3740
3741 # add some linker flags
3742 check_ldflags -Wl,--warn-common
3743 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3744 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3745
3746 enabled xmm_clobber_test &&
3747     check_ldflags -Wl,--wrap,avcodec_open2              \
3748                   -Wl,--wrap,avcodec_decode_audio4      \
3749                   -Wl,--wrap,avcodec_decode_video2      \
3750                   -Wl,--wrap,avcodec_decode_subtitle2   \
3751                   -Wl,--wrap,avcodec_encode_audio2      \
3752                   -Wl,--wrap,avcodec_encode_video       \
3753                   -Wl,--wrap,avcodec_encode_subtitle    \
3754                   -Wl,--wrap,sws_scale ||
3755     disable xmm_clobber_test
3756
3757 echo "X{};" > $TMPV
3758 if test_ldflags -Wl,--version-script,$TMPV; then
3759     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3760     check_cc <<EOF && enable symver_asm_label
3761 void ff_foo(void) __asm__ ("av_foo@VERSION");
3762 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3763 EOF
3764     check_cc <<EOF && enable symver_gnu_asm
3765 __asm__(".symver ff_foo,av_foo@VERSION");
3766 void ff_foo(void) {}
3767 EOF
3768 fi
3769
3770 if [ -n "$optflags" ]; then
3771     add_cflags $optflags
3772 elif enabled small; then
3773     add_cflags $cflags_size
3774 elif enabled optimizations; then
3775     add_cflags $cflags_speed
3776 else
3777     add_cflags $cflags_noopt
3778 fi
3779 check_cflags -fno-math-errno
3780 check_cflags -fno-signed-zeros
3781 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3782 int x;
3783 EOF
3784
3785
3786 if enabled icc; then
3787     # Just warnings, no remarks
3788     check_cflags -w1
3789     # -wd: Disable following warnings
3790     # 144, 167, 556: -Wno-pointer-sign
3791     # 1292: attribute "foo" ignored
3792     # 1419: external declaration in primary source file
3793     # 10006: ignoring unknown option -fno-signed-zeros
3794     # 10148: ignoring unknown option -Wno-parentheses
3795     # 10156: ignoring option '-W'; no argument required
3796     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3797     # 11030: Warning unknown option --as-needed
3798     # 10156: ignoring option '-export'; no argument required
3799     check_ldflags -wd10156,11030
3800     # Allow to compile with optimizations
3801     check_ldflags -march=$cpu
3802     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3803     enable ebp_available
3804     if enabled x86_32; then
3805         icc_version=$($cc -dumpversion)
3806         test ${icc_version%%.*} -ge 11 &&
3807             check_cflags -falign-stack=maintain-16-byte ||
3808             disable aligned_stack
3809     fi
3810 elif enabled ccc; then
3811     # disable some annoying warnings
3812     add_cflags -msg_disable cvtu32to64
3813     add_cflags -msg_disable embedcomment
3814     add_cflags -msg_disable needconstext
3815     add_cflags -msg_disable nomainieee
3816     add_cflags -msg_disable ptrmismatch1
3817     add_cflags -msg_disable unreachcode
3818 elif enabled gcc; then
3819     check_cflags -fno-tree-vectorize
3820     check_cflags -Werror=implicit-function-declaration
3821     check_cflags -Werror=missing-prototypes
3822 elif enabled llvm_gcc; then
3823     check_cflags -mllvm -stack-alignment=16
3824 elif enabled clang; then
3825     check_cflags -mllvm -stack-alignment=16
3826     check_cflags -Qunused-arguments
3827 elif enabled armcc; then
3828     # 2523: use of inline assembler is deprecated
3829     add_cflags -W${armcc_opt},--diag_suppress=2523
3830     add_cflags -W${armcc_opt},--diag_suppress=1207
3831     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3832     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3833     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3834     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3835 elif enabled tms470; then
3836     add_cflags -pds=824 -pds=837
3837 elif enabled pathscale; then
3838     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3839 fi
3840
3841 # If a missing snprintf/broken strtod is detected, force-include headers
3842 # that override prototypes and define it to a prefixed one implemented in
3843 # libavutil. We do this at the end since -I flags aren't set in configure,
3844 # and any additional check_cflags() beyond here will thus fail (because
3845 # it can't find these files, because the -I$(srcdir) wasn't set).
3846 enabled snprintf || force_include compat/snprintf.h
3847 enabled broken_strtod && force_include compat/strtod.h
3848
3849 enabled_any $THREADS_LIST      && enable threads
3850
3851 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3852
3853 check_deps $CONFIG_LIST       \
3854            $CONFIG_EXTRA      \
3855            $HAVE_LIST         \
3856            $ALL_COMPONENTS    \
3857            $ALL_TESTS         \
3858
3859
3860 if test $target_os = "haiku"; then
3861     disable memalign
3862     disable posix_memalign
3863 fi
3864
3865 ! enabled_any memalign posix_memalign aligned_malloc &&
3866     enabled_any $need_memalign && enable memalign_hack
3867
3868 # add_dep lib dep
3869 # -> enable ${lib}_deps_${dep}
3870 # -> add $dep to ${lib}_deps only once
3871 add_dep() {
3872     lib=$1
3873     dep=$2
3874     enabled "${lib}_deps_${dep}" && return 0
3875     enable  "${lib}_deps_${dep}"
3876     prepend "${lib}_deps" $dep
3877 }
3878
3879 # merge deps lib components
3880 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3881 merge_deps() {
3882     lib=$1
3883     shift
3884     for comp in $*; do
3885         enabled $comp || continue
3886         eval "dep=\"\$${comp}_deps\""
3887         for d in $dep; do
3888             add_dep $lib $d
3889         done
3890     done
3891 }
3892
3893 merge_deps libavfilter $FILTER_LIST
3894
3895 echo "install prefix            $prefix"
3896 echo "source path               $source_path"
3897 echo "C compiler                $cc"
3898 echo "ARCH                      $arch ($cpu)"
3899 if test "$build_suffix" != ""; then
3900     echo "build suffix              $build_suffix"
3901 fi
3902 if test "$progs_suffix" != ""; then
3903     echo "progs suffix              $progs_suffix"
3904 fi
3905 if test "$extra_version" != ""; then
3906     echo "version string suffix     $extra_version"
3907 fi
3908 echo "big-endian                ${bigendian-no}"
3909 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3910 if enabled x86; then
3911     echo "${yasmexe}                      ${yasm-no}"
3912     echo "MMX enabled               ${mmx-no}"
3913     echo "MMXEXT enabled            ${mmxext-no}"
3914     echo "3DNow! enabled            ${amd3dnow-no}"
3915     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3916     echo "SSE enabled               ${sse-no}"
3917     echo "SSSE3 enabled             ${ssse3-no}"
3918     echo "AVX enabled               ${avx-no}"
3919     echo "FMA4 enabled              ${fma4-no}"
3920     echo "CMOV enabled              ${cmov-no}"
3921     echo "CMOV is fast              ${fast_cmov-no}"
3922     echo "EBX available             ${ebx_available-no}"
3923     echo "EBP available             ${ebp_available-no}"
3924 fi
3925 if enabled arm; then
3926     echo "ARMv5TE enabled           ${armv5te-no}"
3927     echo "ARMv6 enabled             ${armv6-no}"
3928     echo "ARMv6T2 enabled           ${armv6t2-no}"
3929     echo "ARM VFP enabled           ${armvfp-no}"
3930     echo "NEON enabled              ${neon-no}"
3931 fi
3932 if enabled mips; then
3933     echo "MMI enabled               ${mmi-no}"
3934     echo "MIPS FPU enabled          ${mipsfpu-no}"
3935     echo "MIPS32R2 enabled          ${mips32r2-no}"
3936     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3937     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3938 fi
3939 if enabled ppc; then
3940     echo "AltiVec enabled           ${altivec-no}"
3941     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3942     echo "dcbzl available           ${dcbzl-no}"
3943 fi
3944 if enabled sparc; then
3945     echo "VIS enabled               ${vis-no}"
3946 fi
3947 echo "debug symbols             ${debug-no}"
3948 echo "strip symbols             ${stripping-no}"
3949 echo "optimize for size         ${small-no}"
3950 echo "optimizations             ${optimizations-no}"
3951 echo "static                    ${static-no}"
3952 echo "shared                    ${shared-no}"
3953 echo "postprocessing support    ${postproc-no}"
3954 echo "new filter support        ${avfilter-no}"
3955 echo "network support           ${network-no}"
3956 echo "threading support         ${thread_type-no}"
3957 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3958 echo "SDL support               ${sdl-no}"
3959 echo "libdxva2 enabled          ${dxva2-no}"
3960 echo "libva enabled             ${vaapi-no}"
3961 echo "libvdpau enabled          ${vdpau-no}"
3962 echo "AVISynth enabled          ${avisynth-no}"
3963 echo "frei0r enabled            ${frei0r-no}"
3964 echo "gnutls enabled            ${gnutls-no}"
3965 echo "libaacplus enabled        ${libaacplus-no}"
3966 echo "libass enabled            ${libass-no}"
3967 echo "libcaca enabled           ${libcaca-no}"
3968 echo "libcdio support           ${libcdio-no}"
3969 echo "libcelt enabled           ${libcelt-no}"
3970 echo "libdc1394 support         ${libdc1394-no}"
3971 echo "libfaac enabled           ${libfaac-no}"
3972 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3973 echo "libgsm enabled            ${libgsm-no}"
3974 echo "libiec61883 support       ${libiec61883-no}"
3975 echo "libilbc enabled           ${libilbc-no}"
3976 echo "libmodplug enabled        ${libmodplug-no}"
3977 echo "libmp3lame enabled        ${libmp3lame-no}"
3978 echo "libnut enabled            ${libnut-no}"
3979 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3980 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3981 echo "libopencv support         ${libopencv-no}"
3982 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3983 echo "libopus enabled           ${libopus-no}"
3984 echo "libpulse enabled          ${libpulse-no}"
3985 echo "librtmp enabled           ${librtmp-no}"
3986 echo "libschroedinger enabled   ${libschroedinger-no}"
3987 echo "libspeex enabled          ${libspeex-no}"
3988 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3989 echo "libtheora enabled         ${libtheora-no}"
3990 echo "libtwolame enabled        ${libtwolame-no}"
3991 echo "libutvideo enabled        ${libutvideo-no}"
3992 echo "libv4l2 enabled           ${libv4l2-no}"
3993 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3994 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3995 echo "libvorbis enabled         ${libvorbis-no}"
3996 echo "libvpx enabled            ${libvpx-no}"
3997 echo "libx264 enabled           ${libx264-no}"
3998 echo "libxavs enabled           ${libxavs-no}"
3999 echo "libxvid enabled           ${libxvid-no}"
4000 echo "openal enabled            ${openal-no}"
4001 echo "openssl enabled           ${openssl-no}"
4002 echo "zlib enabled              ${zlib-no}"
4003 echo "bzlib enabled             ${bzlib-no}"
4004 echo "texi2html enabled         ${texi2html-no}"
4005 echo "perl enabled              ${perl-no}"
4006 echo "pod2man enabled           ${pod2man-no}"
4007 echo "makeinfo enabled          ${makeinfo-no}"
4008 test -n "$random_seed" &&
4009     echo "random seed               ${random_seed}"
4010 echo
4011
4012 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4013     echo "Enabled ${type}s:"
4014     eval list=\$$(toupper $type)_LIST
4015     print_enabled '_*' $list | sort | pr -r -3 -t
4016     echo
4017 done
4018
4019 license="LGPL version 2.1 or later"
4020 if enabled nonfree; then
4021     license="nonfree and unredistributable"
4022 elif enabled gplv3; then
4023     license="GPL version 3 or later"
4024 elif enabled lgplv3; then
4025     license="LGPL version 3 or later"
4026 elif enabled gpl; then
4027     license="GPL version 2 or later"
4028 fi
4029
4030 echo "License: $license"
4031
4032 echo "Creating config.mak and config.h..."
4033
4034 test -e Makefile || $ln_s "$source_path/Makefile" .
4035
4036 enabled stripping || strip="echo skipping strip"
4037
4038 config_files="$TMPH config.mak"
4039
4040 cat > config.mak <<EOF
4041 # Automatically generated by configure - do not modify!
4042 ifndef FFMPEG_CONFIG_MAK
4043 FFMPEG_CONFIG_MAK=1
4044 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4045 prefix=$prefix
4046 LIBDIR=\$(DESTDIR)$libdir
4047 SHLIBDIR=\$(DESTDIR)$shlibdir
4048 INCDIR=\$(DESTDIR)$incdir
4049 BINDIR=\$(DESTDIR)$bindir
4050 DATADIR=\$(DESTDIR)$datadir
4051 MANDIR=\$(DESTDIR)$mandir
4052 SRC_PATH=$source_path
4053 ifndef MAIN_MAKEFILE
4054 SRC_PATH:=\$(SRC_PATH:.%=..%)
4055 endif
4056 CC_IDENT=$cc_ident
4057 ARCH=$arch
4058 CC=$cc
4059 CXX=$cxx
4060 AS=$as
4061 LD=$ld
4062 DEPCC=$dep_cc
4063 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4064 DEPAS=$as
4065 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4066 YASM=$yasmexe
4067 DEPYASM=$yasmexe
4068 AR=$ar
4069 RANLIB=$ranlib
4070 CP=cp -p
4071 LN_S=$ln_s
4072 STRIP=$strip
4073 CPPFLAGS=$CPPFLAGS
4074 CFLAGS=$CFLAGS
4075 CXXFLAGS=$CXXFLAGS
4076 ASFLAGS=$ASFLAGS
4077 AS_C=$AS_C
4078 AS_O=$AS_O
4079 CC_C=$CC_C
4080 CC_O=$CC_O
4081 CXX_C=$CXX_C
4082 CXX_O=$CXX_O
4083 LD_O=$LD_O
4084 LD_LIB=$LD_LIB
4085 LD_PATH=$LD_PATH
4086 DLLTOOL=$dlltool
4087 LDFLAGS=$LDFLAGS
4088 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4089 SHFLAGS=$SHFLAGS
4090 YASMFLAGS=$YASMFLAGS
4091 BUILDSUF=$build_suffix
4092 PROGSSUF=$progs_suffix
4093 FULLNAME=$FULLNAME
4094 LIBPREF=$LIBPREF
4095 LIBSUF=$LIBSUF
4096 LIBNAME=$LIBNAME
4097 SLIBPREF=$SLIBPREF
4098 SLIBSUF=$SLIBSUF
4099 EXESUF=$EXESUF
4100 EXTRA_VERSION=$extra_version
4101 CCDEP=$CCDEP
4102 CXXDEP=$CXXDEP
4103 CCDEP_FLAGS=$CCDEP_FLAGS
4104 ASDEP=$ASDEP
4105 ASDEP_FLAGS=$ASDEP_FLAGS
4106 CC_DEPFLAGS=$CC_DEPFLAGS
4107 AS_DEPFLAGS=$AS_DEPFLAGS
4108 HOSTCC=$host_cc
4109 HOSTLD=$host_ld
4110 HOSTCFLAGS=$host_cflags
4111 HOSTEXESUF=$HOSTEXESUF
4112 HOSTLDFLAGS=$host_ldflags
4113 HOSTLIBS=$host_libs
4114 DEPHOSTCC=$host_cc
4115 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4116 HOSTCCDEP=$HOSTCCDEP
4117 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4118 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4119 HOSTCC_C=$HOSTCC_C
4120 HOSTCC_O=$HOSTCC_O
4121 HOSTLD_O=$HOSTLD_O
4122 TARGET_EXEC=$target_exec
4123 TARGET_PATH=$target_path
4124 LIBS-ffplay=$sdl_libs
4125 CFLAGS-ffplay=$sdl_cflags
4126 ZLIB=$($ldflags_filter -lz)
4127 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4128 EXTRALIBS=$extralibs
4129 INSTALL=$install
4130 LIBTARGET=${LIBTARGET}
4131 SLIBNAME=${SLIBNAME}
4132 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4133 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4134 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4135 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4136 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4137 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4138 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4139 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4140 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4141 NOREDZONE_FLAGS=$noredzone_flags
4142 EOF
4143
4144 get_version(){
4145     lcname=$1
4146     name=$(toupper $lcname)
4147     file=$source_path/$lcname/version.h
4148     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4149     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4150     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4151     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4152 }
4153
4154 get_version_old(){
4155     name=$1
4156     file=$source_path/$2
4157 # This condition will be removed when we stop supporting old libpostproc versions
4158 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4159     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4160     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4161 fi
4162     lcname=$(tolower $name)
4163     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4164     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4165 }
4166
4167 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4168 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4169
4170 get_version libavcodec
4171 get_version libavdevice
4172 get_version libavfilter
4173 get_version libavformat
4174 get_version libavresample
4175 get_version libavutil
4176 get_version libswscale
4177
4178 cat > $TMPH <<EOF
4179 /* Automatically generated by configure - do not modify! */
4180 #ifndef FFMPEG_CONFIG_H
4181 #define FFMPEG_CONFIG_H
4182 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4183 #define FFMPEG_LICENSE "$(c_escape $license)"
4184 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4185 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4186 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4187 #define av_restrict $_restrict
4188 #define EXTERN_PREFIX "${extern_prefix}"
4189 #define EXTERN_ASM ${extern_prefix}
4190 #define SLIBSUF "$SLIBSUF"
4191 #define HAVE_MMX2 HAVE_MMXEXT
4192 EOF
4193
4194 test -n "$assert_level" &&
4195     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4196
4197 test -n "$malloc_prefix" &&
4198     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4199
4200 if enabled yasm; then
4201     append config_files $TMPASM
4202     printf '' >$TMPASM
4203 fi
4204
4205 print_config ARCH_   "$config_files" $ARCH_LIST
4206 print_config HAVE_   "$config_files" $HAVE_LIST
4207 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4208                                      $CONFIG_EXTRA      \
4209                                      $ALL_COMPONENTS    \
4210
4211 cat >>config.mak <<EOF
4212 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4213 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4214 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4215 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4216 EOF
4217
4218 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4219 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4220
4221 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4222 cp_if_changed $TMPH config.h
4223 touch .config
4224
4225 enabled yasm && cp_if_changed $TMPASM config.asm
4226
4227 cat > $TMPH <<EOF
4228 /* Generated by ffconf */
4229 #ifndef AVUTIL_AVCONFIG_H
4230 #define AVUTIL_AVCONFIG_H
4231 EOF
4232
4233 test "$postproc_version" != current && cat >> $TMPH <<EOF
4234 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4235 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4236 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4237 EOF
4238
4239 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4240
4241 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4242
4243 cp_if_changed $TMPH libavutil/avconfig.h
4244
4245 test -n "$WARNINGS" && printf "\n$WARNINGS"
4246
4247 # build pkg-config files
4248
4249 pkgconfig_generate(){
4250 name=$1
4251 shortname=${name#lib}${build_suffix}
4252 comment=$2
4253 version=$3
4254 libs=$4
4255 requires=$5
4256 enabled ${name#lib} || return 0
4257 mkdir -p $name
4258 cat <<EOF > $name/$name.pc
4259 prefix=$prefix
4260 exec_prefix=\${prefix}
4261 libdir=$libdir
4262 includedir=$incdir
4263
4264 Name: $name
4265 Description: $comment
4266 Version: $version
4267 Requires: $(enabled shared || echo $requires)
4268 Requires.private: $(enabled shared && echo $requires)
4269 Conflicts:
4270 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4271 Libs.private: $(enabled shared && echo $libs)
4272 Cflags: -I\${includedir}
4273 EOF
4274
4275 mkdir -p doc/examples/pc-uninstalled
4276 includedir=${source_path}
4277 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4278 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4279 prefix=
4280 exec_prefix=
4281 libdir=\${pcfiledir}/../../../$name
4282 includedir=${includedir}
4283
4284 Name: $name
4285 Description: $comment
4286 Version: $version
4287 Requires: $requires
4288 Conflicts:
4289 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4290 Cflags: -I\${includedir}
4291 EOF
4292 }
4293
4294 libavfilter_pc_deps=""
4295 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4296 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4297 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4298 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4299 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4300 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4301
4302 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4303 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4304
4305 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4306 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4307 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4308 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4309 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4310 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4311 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4312 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4313 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"