lavfi: add kerndeint filter
[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 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --enable-x11grab         enable X11 grabbing [no]
134   --disable-network        disable network support [no]
135   --disable-dct            disable DCT code
136   --disable-dwt            disable DWT code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142   --enable-dxva2           enable DXVA2 code
143   --enable-vaapi           enable VAAPI code [autodetect]
144   --enable-vda             enable VDA code   [autodetect]
145   --enable-vdpau           enable VDPAU code [autodetect]
146
147 Individual component options:
148   --disable-everything     disable all components listed below
149   --disable-encoder=NAME   disable encoder NAME
150   --enable-encoder=NAME    enable encoder NAME
151   --disable-encoders       disable all encoders
152   --disable-decoder=NAME   disable decoder NAME
153   --enable-decoder=NAME    enable decoder NAME
154   --disable-decoders       disable all decoders
155   --disable-hwaccel=NAME   disable hwaccel NAME
156   --enable-hwaccel=NAME    enable hwaccel NAME
157   --disable-hwaccels       disable all hwaccels
158   --disable-muxer=NAME     disable muxer NAME
159   --enable-muxer=NAME      enable muxer NAME
160   --disable-muxers         disable all muxers
161   --disable-demuxer=NAME   disable demuxer NAME
162   --enable-demuxer=NAME    enable demuxer NAME
163   --disable-demuxers       disable all demuxers
164   --enable-parser=NAME     enable parser NAME
165   --disable-parser=NAME    disable parser NAME
166   --disable-parsers        disable all parsers
167   --enable-bsf=NAME        enable bitstream filter NAME
168   --disable-bsf=NAME       disable bitstream filter NAME
169   --disable-bsfs           disable all bitstream filters
170   --enable-protocol=NAME   enable protocol NAME
171   --disable-protocol=NAME  disable protocol NAME
172   --disable-protocols      disable all protocols
173   --enable-indev=NAME      enable input device NAME
174   --disable-indev=NAME     disable input device NAME
175   --disable-indevs         disable input devices
176   --enable-outdev=NAME     enable output device NAME
177   --disable-outdev=NAME    disable output device NAME
178   --disable-outdevs        disable output devices
179   --disable-devices        disable all devices
180   --enable-filter=NAME     enable filter NAME
181   --disable-filter=NAME    disable filter NAME
182   --disable-filters        disable all filters
183
184 External library support:
185   --enable-avisynth        enable reading of AVISynth script files [no]
186   --enable-bzlib           enable bzlib [autodetect]
187   --enable-fontconfig      enable fontconfig
188   --enable-frei0r          enable frei0r video filtering
189   --enable-gnutls          enable gnutls [no]
190   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
191   --enable-libass          enable libass subtitles rendering [no]
192   --enable-libbluray       enable BluRay reading using libbluray [no]
193   --enable-libcaca         enable textual display using libcaca
194   --enable-libcelt         enable CELT decoding via libcelt [no]
195   --enable-libcdio         enable audio CD grabbing with libcdio
196   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
197                            and libraw1394 [no]
198   --enable-libfaac         enable AAC encoding via libfaac [no]
199   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
200   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
201   --enable-libfreetype     enable libfreetype [no]
202   --enable-libgsm          enable GSM de/encoding via libgsm [no]
203   --enable-libiec61883     enable iec61883 via libiec61883 [no]
204   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
205   --enable-libmodplug      enable ModPlug via libmodplug [no]
206   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
207   --enable-libnut          enable NUT (de)muxing via libnut,
208                            native (de)muxer exists [no]
209   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
210   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
211   --enable-libopencv       enable video filtering via libopencv [no]
212   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
213   --enable-libopus         enable Opus decoding via libopus [no]
214   --enable-libpulse        enable Pulseaudio input via libpulse [no]
215   --enable-librtmp         enable RTMP[E] support via librtmp [no]
216   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
217   --enable-libsoxr         enable Include libsoxr resampling [no]
218   --enable-libspeex        enable Speex de/encoding via libspeex [no]
219   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
220   --enable-libtheora       enable Theora encoding via libtheora [no]
221   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
222   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
223   --enable-libv4l2         enable libv4l2/v4l-utils [no]
224   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
225   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
226   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
227                            native implementation exists [no]
228   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
229   --enable-libx264         enable H.264 encoding via x264 [no]
230   --enable-libxavs         enable AVS encoding via xavs [no]
231   --enable-libxvid         enable Xvid encoding via xvidcore,
232                            native MPEG-4/Xvid encoder exists [no]
233   --enable-openal          enable OpenAL 1.1 capture support [no]
234   --enable-openssl         enable openssl [no]
235   --enable-zlib            enable zlib [autodetect]
236
237 Advanced options (experts only):
238   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
239   --enable-cross-compile   assume a cross-compiler is used
240   --sysroot=PATH           root of cross-build tree
241   --sysinclude=PATH        location of cross-build system headers
242   --target-os=OS           compiler targets OS [$target_os]
243   --target-exec=CMD        command to run executables on target
244   --target-path=DIR        path to view of build directory on target
245   --toolchain=NAME         set tool defaults according to NAME
246   --nm=NM                  use nm tool NM [$nm_default]
247   --ar=AR                  use archive tool AR [$ar_default]
248   --as=AS                  use assembler AS [$as_default]
249   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
250   --cc=CC                  use C compiler CC [$cc_default]
251   --cxx=CXX                use C compiler CXX [$cxx_default]
252   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
253   --ld=LD                  use linker LD [$ld_default]
254   --host-cc=HOSTCC         use host C compiler HOSTCC
255   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
256   --host-ld=HOSTLD         use host linker HOSTLD
257   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
258   --host-libs=HLIBS        use libs HLIBS when linking for host
259   --host-os=OS             compiler host OS [$target_os]
260   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
261   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
262   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
263   --extra-libs=ELIBS       add ELIBS [$ELIBS]
264   --extra-version=STRING   version string suffix []
265   --optflags=OPTFLAGS      override optimization-related compiler flags
266   --build-suffix=SUFFIX    library name suffix []
267   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
268   --progs-suffix=SUFFIX    program name suffix []
269   --arch=ARCH              select architecture [$arch]
270   --cpu=CPU                select the minimum required CPU (affects
271                            instruction selection, may crash on older CPUs)
272   --enable-pic             build position-independent code
273   --enable-sram            allow use of on-chip SRAM
274   --enable-thumb           compile for Thumb instruction set
275   --disable-symver         disable symbol versioning
276   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
277   --disable-safe-bitstream-reader
278                            disable buffer boundary checking in bitreaders
279                            (faster, but may crash)
280   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
281   --enable-lto             use link-time optimization
282
283 Optimization options (experts only):
284   --disable-asm            disable all assembler optimizations
285   --disable-altivec        disable AltiVec optimizations
286   --disable-amd3dnow       disable 3DNow! optimizations
287   --disable-amd3dnowext    disable 3DNow! extended optimizations
288   --disable-mmx            disable MMX optimizations
289   --disable-mmxext         disable MMXEXT optimizations
290   --disable-sse            disable SSE optimizations
291   --disable-sse2           disable SSE2 optimizations
292   --disable-sse3           disable SSE3 optimizations
293   --disable-ssse3          disable SSSE3 optimizations
294   --disable-sse4           disable SSE4 optimizations
295   --disable-sse42          disable SSE4.2 optimizations
296   --disable-avx            disable AVX optimizations
297   --disable-fma4           disable FMA4 optimizations
298   --disable-armv5te        disable armv5te optimizations
299   --disable-armv6          disable armv6 optimizations
300   --disable-armv6t2        disable armv6t2 optimizations
301   --disable-vfp            disable VFP optimizations
302   --disable-neon           disable NEON optimizations
303   --disable-vis            disable VIS optimizations
304   --disable-inline-asm     disable use of inline assembler
305   --disable-yasm           disable use of yasm assembler
306   --disable-mips32r2       disable MIPS32R2 optimizations
307   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
308   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
309   --disable-mipsfpu        disable floating point MIPS optimizations
310   --disable-fast-unaligned consider unaligned accesses slow
311
312 Developer options (useful when working on FFmpeg itself):
313   --enable-coverage        build with test coverage instrumentation
314   --disable-debug          disable debugging symbols
315   --enable-debug=LEVEL     set the debug level [$debuglevel]
316   --disable-optimizations  disable compiler optimizations
317   --enable-extra-warnings  enable more compiler warnings
318   --disable-stripping      disable stripping of executables and shared libraries
319   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
320                            2 causes a slowdown at runtime.
321   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
322   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
323                            leaks and errors, using the specified valgrind binary.
324                            Cannot be combined with --target-exec
325   --enable-ftrapv          Trap arithmetic overflows
326   --samples=PATH           location of test samples for FATE, if not set use
327                            \$FATE_SAMPLES at make invocation time.
328   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
329                            should be used only for debugging purposes)
330   --enable-random          randomly enable/disable components
331   --disable-random
332   --enable-random=LIST     randomly enable/disable specific components or
333   --disable-random=LIST    component groups. LIST is a comma-separated list
334                            of NAME[:PROB] entries where NAME is a component
335                            (group) and PROB the probability associated with
336                            NAME (default 0.5).
337   --random-seed=VALUE      seed value for --enable/disable-random
338
339 NOTE: Object files are built at the place where configure is launched.
340 EOF
341   exit 0
342 }
343
344 quotes='""'
345
346 log(){
347     echo "$@" >> $logfile
348 }
349
350 log_file(){
351     log BEGIN $1
352     pr -n -t $1 >> $logfile
353     log END $1
354 }
355
356 echolog(){
357     log "$@"
358     echo "$@"
359 }
360
361 warn(){
362     log "WARNING: $*"
363     WARNINGS="${WARNINGS}WARNING: $*\n"
364 }
365
366 die(){
367     echolog "$@"
368     cat <<EOF
369
370 If you think configure made a mistake, make sure you are using the latest
371 version from Git.  If the latest version fails, report the problem to the
372 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
373 EOF
374     if disabled logging; then
375         cat <<EOF
376 Rerun configure with logging enabled (do not use --disable-logging), and
377 include the log this produces with your report.
378 EOF
379     else
380         cat <<EOF
381 Include the log file "$logfile" produced by configure as this will help
382 solving the problem.
383 EOF
384     fi
385     exit 1
386 }
387
388 # Avoid locale weirdness, besides we really just want to translate ASCII.
389 toupper(){
390     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
391 }
392
393 tolower(){
394     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
395 }
396
397 c_escape(){
398     echo "$*" | sed 's/["\\]/\\\0/g'
399 }
400
401 sh_quote(){
402     v=$(echo "$1" | sed "s/'/'\\\\''/g")
403     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
404     echo "$v"
405 }
406
407 cleanws(){
408     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
409 }
410
411 filter(){
412     pat=$1
413     shift
414     for v; do
415         eval "case $v in $pat) echo $v ;; esac"
416     done
417 }
418
419 filter_out(){
420     pat=$1
421     shift
422     for v; do
423         eval "case $v in $pat) ;; *) echo $v ;; esac"
424     done
425 }
426
427 map(){
428     m=$1
429     shift
430     for v; do eval $m; done
431 }
432
433 add_suffix(){
434     suffix=$1
435     shift
436     for v; do echo ${v}${suffix}; done
437 }
438
439 set_all(){
440     value=$1
441     shift
442     for var in $*; do
443         eval $var=$value
444     done
445 }
446
447 set_weak(){
448     value=$1
449     shift
450     for var; do
451         eval : \${$var:=$value}
452     done
453 }
454
455 set_safe(){
456     var=$1
457     shift
458     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
459 }
460
461 get_safe(){
462     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
463 }
464
465 pushvar(){
466     for var in $*; do
467         eval level=\${${var}_level:=0}
468         eval ${var}_${level}="\$$var"
469         eval ${var}_level=$(($level+1))
470     done
471 }
472
473 popvar(){
474     for var in $*; do
475         eval level=\${${var}_level:-0}
476         test $level = 0 && continue
477         eval level=$(($level-1))
478         eval $var="\${${var}_${level}}"
479         eval ${var}_level=$level
480         eval unset ${var}_${level}
481     done
482 }
483
484 enable(){
485     set_all yes $*
486 }
487
488 disable(){
489     set_all no $*
490 }
491
492 enable_weak(){
493     set_weak yes $*
494 }
495
496 disable_weak(){
497     set_weak no $*
498 }
499
500 enable_safe(){
501     for var; do
502         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
503     done
504 }
505
506 disable_safe(){
507     for var; do
508         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
509     done
510 }
511
512 do_enable_deep(){
513     for var; do
514         enabled $var && continue
515         eval sel="\$${var}_select"
516         eval sgs="\$${var}_suggest"
517         pushvar var sgs
518         enable_deep $sel
519         popvar sgs
520         enable_deep_weak $sgs
521         popvar var
522     done
523 }
524
525 enable_deep(){
526     do_enable_deep $*
527     enable $*
528 }
529
530 enable_deep_weak(){
531     do_enable_deep $*
532     enable_weak $*
533 }
534
535 enabled(){
536     test "${1#!}" = "$1" && op== || op=!=
537     eval test "x\$${1#!}" $op "xyes"
538 }
539
540 disabled(){
541     test "${1#!}" = "$1" && op== || op=!=
542     eval test "x\$${1#!}" $op "xno"
543 }
544
545 enabled_all(){
546     for opt; do
547         enabled $opt || return 1
548     done
549 }
550
551 disabled_all(){
552     for opt; do
553         disabled $opt || return 1
554     done
555 }
556
557 enabled_any(){
558     for opt; do
559         enabled $opt && return 0
560     done
561 }
562
563 disabled_any(){
564     for opt; do
565         disabled $opt && return 0
566     done
567     return 1
568 }
569
570 set_default(){
571     for opt; do
572         eval : \${$opt:=\$${opt}_default}
573     done
574 }
575
576 is_in(){
577     value=$1
578     shift
579     for var in $*; do
580         [ $var = $value ] && return 0
581     done
582     return 1
583 }
584
585 do_check_deps(){
586     for cfg; do
587         cfg="${cfg#!}"
588         enabled ${cfg}_checking && die "Circular dependency for $cfg."
589         disabled ${cfg}_checking && continue
590         enable ${cfg}_checking
591         append allopts $cfg
592
593         eval dep_all="\$${cfg}_deps"
594         eval dep_any="\$${cfg}_deps_any"
595         eval dep_sel="\$${cfg}_select"
596         eval dep_sgs="\$${cfg}_suggest"
597         eval dep_ifa="\$${cfg}_if"
598         eval dep_ifn="\$${cfg}_if_any"
599
600         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
601         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
602         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
603
604         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
605         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
606         enabled_all  $dep_all || disable $cfg
607         enabled_any  $dep_any || disable $cfg
608         disabled_any $dep_sel && disable $cfg
609
610         if enabled $cfg; then
611             enable_deep $dep_sel
612             enable_deep_weak $dep_sgs
613         fi
614
615         disable ${cfg}_checking
616     done
617 }
618
619 check_deps(){
620     unset allopts
621
622     do_check_deps "$@"
623
624     for cfg in $allopts; do
625         enabled $cfg || continue
626         eval dep_extralibs="\$${cfg}_extralibs"
627         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
628     done
629 }
630
631 print_config(){
632     pfx=$1
633     files=$2
634     shift 2
635     map 'eval echo "$v \${$v:-no}"' "$@" |
636     awk "BEGIN { split(\"$files\", files) }
637         {
638             c = \"$pfx\" toupper(\$1);
639             v = \$2;
640             sub(/yes/, 1, v);
641             sub(/no/,  0, v);
642             for (f in files) {
643                 file = files[f];
644                 if (file ~ /\\.h\$/) {
645                     printf(\"#define %s %d\\n\", c, v) >>file;
646                 } else if (file ~ /\\.asm\$/) {
647                     printf(\"%%define %s %d\\n\", c, v) >>file;
648                 } else if (file ~ /\\.mak\$/) {
649                     n = -v ? \"\" : \"!\";
650                     printf(\"%s%s=yes\\n\", n, c) >>file;
651                 }
652             }
653         }"
654 }
655
656 print_enabled(){
657     suf=$1
658     shift
659     for v; do
660         enabled $v && printf "%s\n" ${v%$suf};
661     done
662 }
663
664 append(){
665     var=$1
666     shift
667     eval "$var=\"\$$var $*\""
668 }
669
670 prepend(){
671     var=$1
672     shift
673     eval "$var=\"$* \$$var\""
674 }
675
676 add_cppflags(){
677     append CPPFLAGS "$@"
678 }
679
680 add_cflags(){
681     append CFLAGS $($cflags_filter "$@")
682 }
683
684 add_cxxflags(){
685     append CXXFLAGS $($cflags_filter "$@")
686 }
687
688 add_asflags(){
689     append ASFLAGS $($asflags_filter "$@")
690 }
691
692 add_ldflags(){
693     append LDFLAGS $($ldflags_filter "$@")
694 }
695
696 add_extralibs(){
697     prepend extralibs $($ldflags_filter "$@")
698 }
699
700 add_host_cflags(){
701     append host_cflags $($host_cflags_filter "$@")
702 }
703
704 add_host_ldflags(){
705     append host_ldflags $($host_ldflags_filter "$@")
706 }
707
708 add_compat(){
709     append compat_objs $1
710     shift
711     map 'add_cppflags -D$v' "$@"
712 }
713
714 check_cmd(){
715     log "$@"
716     "$@" >> $logfile 2>&1
717 }
718
719 cc_o(){
720     eval printf '%s\\n' $CC_O
721 }
722
723 cc_e(){
724     eval printf '%s\\n' $CC_E
725 }
726
727 check_cc(){
728     log check_cc "$@"
729     cat > $TMPC
730     log_file $TMPC
731     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
732 }
733
734 check_cxx(){
735     log check_cxx "$@"
736     cat > $TMPCPP
737     log_file $TMPCPP
738     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
739 }
740
741 check_cpp(){
742     log check_cpp "$@"
743     cat > $TMPC
744     log_file $TMPC
745     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
746 }
747
748 as_o(){
749     eval printf '%s\\n' $AS_O
750 }
751
752 check_as(){
753     log check_as "$@"
754     cat > $TMPS
755     log_file $TMPS
756     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
757 }
758
759 check_inline_asm(){
760     log check_inline_asm "$@"
761     name="$1"
762     code="$2"
763     shift 2
764     disable $name
765     check_cc "$@" <<EOF && enable $name
766 void foo(void){ __asm__ volatile($code); }
767 EOF
768 }
769
770 check_insn(){
771     log check_insn "$@"
772     check_inline_asm ${1}_inline "\"$2\""
773     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
774 }
775
776 check_yasm(){
777     log check_yasm "$@"
778     echo "$1" > $TMPS
779     log_file $TMPS
780     shift 1
781     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
782 }
783
784 ld_o(){
785     eval printf '%s\\n' $LD_O
786 }
787
788 check_ld(){
789     log check_ld "$@"
790     type=$1
791     shift 1
792     flags=$(filter_out '-l*' $@)
793     libs=$(filter '-l*' $@)
794     check_$type $($cflags_filter $flags) || return
795     flags=$($ldflags_filter $flags)
796     libs=$($ldflags_filter $libs)
797     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
798 }
799
800 check_code(){
801     log check_code "$@"
802     check=$1
803     headers=$2
804     code=$3
805     shift 3
806     {
807         for hdr in $headers; do
808             echo "#include <$hdr>"
809         done
810         echo "int main(void) { $code; return 0; }"
811     } | check_$check "$@"
812 }
813
814 check_cppflags(){
815     log check_cppflags "$@"
816     check_cc "$@" <<EOF && append CPPFLAGS "$@"
817 int x;
818 EOF
819 }
820
821 check_cflags(){
822     log check_cflags "$@"
823     set -- $($cflags_filter "$@")
824     check_cc "$@" <<EOF && append CFLAGS "$@"
825 int x;
826 EOF
827 }
828
829 check_cxxflags(){
830     log check_cxxflags "$@"
831     set -- $($cflags_filter "$@")
832     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
833 int x;
834 EOF
835 }
836
837 test_ldflags(){
838     log test_ldflags "$@"
839     check_ld "cc" "$@" <<EOF
840 int main(void){ return 0; }
841 EOF
842 }
843
844 check_ldflags(){
845     log check_ldflags "$@"
846     test_ldflags "$@" && add_ldflags "$@"
847 }
848
849 check_header(){
850     log check_header "$@"
851     header=$1
852     shift
853     disable_safe $header
854     check_cpp "$@" <<EOF && enable_safe $header
855 #include <$header>
856 int x;
857 EOF
858 }
859
860 check_func(){
861     log check_func "$@"
862     func=$1
863     shift
864     disable $func
865     check_ld "cc" "$@" <<EOF && enable $func
866 extern int $func();
867 int main(void){ $func(); }
868 EOF
869 }
870
871 check_mathfunc(){
872     log check_mathfunc "$@"
873     func=$1
874     narg=$2
875     shift 2
876     test $narg = 2 && args="f, g" || args="f"
877     disable $func
878     check_ld "cc" "$@" <<EOF && enable $func
879 #include <math.h>
880 float foo(float f, float g) { return $func($args); }
881 int main(void){ return (int) foo; }
882 EOF
883 }
884
885 check_func_headers(){
886     log check_func_headers "$@"
887     headers=$1
888     funcs=$2
889     shift 2
890     {
891         for hdr in $headers; do
892             echo "#include <$hdr>"
893         done
894         for func in $funcs; do
895             echo "long check_$func(void) { return (long) $func; }"
896         done
897         echo "int main(void) { return 0; }"
898     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
899 }
900
901 check_class_headers_cpp(){
902     log check_class_headers_cpp "$@"
903     headers=$1
904     classes=$2
905     shift 2
906     {
907         for hdr in $headers; do
908             echo "#include <$hdr>"
909         done
910         echo "int main(void) { "
911         i=1
912         for class in $classes; do
913             echo "$class obj$i;"
914             i=$(expr $i + 1)
915         done
916         echo "return 0; }"
917     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
918 }
919
920 check_cpp_condition(){
921     log check_cpp_condition "$@"
922     header=$1
923     condition=$2
924     shift 2
925     check_cpp "$@" <<EOF
926 #include <$header>
927 #if !($condition)
928 #error "unsatisfied condition: $condition"
929 #endif
930 EOF
931 }
932
933 check_lib(){
934     log check_lib "$@"
935     header="$1"
936     func="$2"
937     shift 2
938     check_header $header && check_func $func "$@" && add_extralibs "$@"
939 }
940
941 check_lib2(){
942     log check_lib2 "$@"
943     headers="$1"
944     funcs="$2"
945     shift 2
946     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
947 }
948
949 check_lib_cpp(){
950     log check_lib_cpp "$@"
951     headers="$1"
952     classes="$2"
953     shift 2
954     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
955 }
956
957 check_pkg_config(){
958     log check_pkg_config "$@"
959     pkg="$1"
960     headers="$2"
961     funcs="$3"
962     shift 3
963     $pkg_config --exists $pkg 2>/dev/null || return
964     pkg_cflags=$($pkg_config --cflags $pkg)
965     pkg_libs=$($pkg_config --libs $pkg)
966     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
967         set_safe ${pkg}_cflags $pkg_cflags   &&
968         set_safe ${pkg}_libs   $pkg_libs
969 }
970
971 check_exec(){
972     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
973 }
974
975 check_exec_crash(){
976     code=$(cat)
977
978     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
979     # are safe but may not be available everywhere.  Thus we use
980     # raise(SIGTERM) instead.  The check is run in a subshell so we
981     # can redirect the "Terminated" message from the shell.  SIGBUS
982     # is not defined by standard C so it is used conditionally.
983
984     (check_exec "$@") >> $logfile 2>&1 <<EOF
985 #include <signal.h>
986 static void sighandler(int sig){
987     raise(SIGTERM);
988 }
989 int func(void){
990     $code
991 }
992 int (*func_ptr)(void) = func;
993 int main(void){
994     signal(SIGILL, sighandler);
995     signal(SIGFPE, sighandler);
996     signal(SIGSEGV, sighandler);
997 #ifdef SIGBUS
998     signal(SIGBUS, sighandler);
999 #endif
1000     return func_ptr();
1001 }
1002 EOF
1003 }
1004
1005 check_type(){
1006     log check_type "$@"
1007     headers=$1
1008     type=$2
1009     shift 2
1010     disable_safe "$type"
1011     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1012 }
1013
1014 check_struct(){
1015     log check_type "$@"
1016     headers=$1
1017     struct=$2
1018     member=$3
1019     shift 3
1020     disable_safe "${struct}_${member}"
1021     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1022         enable_safe "${struct}_${member}"
1023 }
1024
1025 require(){
1026     name="$1"
1027     header="$2"
1028     func="$3"
1029     shift 3
1030     check_lib $header $func "$@" || die "ERROR: $name not found"
1031 }
1032
1033 require2(){
1034     name="$1"
1035     headers="$2"
1036     func="$3"
1037     shift 3
1038     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1039 }
1040
1041 require_cpp(){
1042     name="$1"
1043     headers="$2"
1044     classes="$3"
1045     shift 3
1046     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1047 }
1048
1049 require_pkg_config(){
1050     pkg="$1"
1051     check_pkg_config "$@" || die "ERROR: $pkg not found"
1052     add_cflags    $(get_safe ${pkg}_cflags)
1053     add_extralibs $(get_safe ${pkg}_libs)
1054 }
1055
1056 hostcc_o(){
1057     eval printf '%s\\n' $HOSTCC_O
1058 }
1059
1060 check_host_cc(){
1061     log check_host_cc "$@"
1062     cat > $TMPC
1063     log_file $TMPC
1064     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1065 }
1066
1067 check_host_cflags(){
1068     log check_host_cflags "$@"
1069     set -- $($host_cflags_filter "$@")
1070     check_host_cc "$@" <<EOF && append host_cflags "$@"
1071 int x;
1072 EOF
1073 }
1074
1075 apply(){
1076     file=$1
1077     shift
1078     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1079 }
1080
1081 cp_if_changed(){
1082     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1083     mkdir -p "$(dirname $2)"
1084     $cp_f "$1" "$2"
1085 }
1086
1087 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1088 # system-dependent things.
1089
1090 COMPONENT_LIST="
1091     bsfs
1092     decoders
1093     demuxers
1094     encoders
1095     filters
1096     hwaccels
1097     indevs
1098     muxers
1099     outdevs
1100     parsers
1101     protocols
1102 "
1103
1104 DOCUMENT_LIST="
1105     doc
1106     htmlpages
1107     manpages
1108     podpages
1109     txtpages
1110 "
1111
1112 LIBRARY_LIST="
1113     avcodec
1114     avdevice
1115     avfilter
1116     avformat
1117     avresample
1118     avutil
1119     postproc
1120     swresample
1121     swscale
1122 "
1123
1124 PROGRAM_LIST="
1125     ffplay
1126     ffprobe
1127     ffserver
1128     ffmpeg
1129 "
1130
1131 CONFIG_LIST="
1132     $COMPONENT_LIST
1133     $DOCUMENT_LIST
1134     $LIBRARY_LIST
1135     $PROGRAM_LIST
1136     avisynth
1137     bzlib
1138     crystalhd
1139     dct
1140     dwt
1141     dxva2
1142     fast_unaligned
1143     fft
1144     fontconfig
1145     frei0r
1146     ftrapv
1147     gnutls
1148     gpl
1149     gray
1150     hardcoded_tables
1151     incompatible_fork_abi
1152     libaacplus
1153     libass
1154     libbluray
1155     libcaca
1156     libcdio
1157     libcelt
1158     libdc1394
1159     libfaac
1160     libfdk_aac
1161     libflite
1162     libfreetype
1163     libgsm
1164     libiec61883
1165     libilbc
1166     libmodplug
1167     libmp3lame
1168     libnut
1169     libopencore_amrnb
1170     libopencore_amrwb
1171     libopencv
1172     libopenjpeg
1173     libopus
1174     libpulse
1175     librtmp
1176     libschroedinger
1177     libsoxr
1178     libspeex
1179     libstagefright_h264
1180     libtheora
1181     libtwolame
1182     libutvideo
1183     libv4l2
1184     libvo_aacenc
1185     libvo_amrwbenc
1186     libvorbis
1187     libvpx
1188     libx264
1189     libxavs
1190     libxvid
1191     lsp
1192     lzo
1193     mdct
1194     memalign_hack
1195     memory_poisoning
1196     network
1197     nonfree
1198     openal
1199     openssl
1200     pic
1201     rdft
1202     runtime_cpudetect
1203     safe_bitstream_reader
1204     shared
1205     small
1206     sram
1207     static
1208     swscale_alpha
1209     thumb
1210     vaapi
1211     vda
1212     vdpau
1213     version3
1214     xmm_clobber_test
1215     x11grab
1216     zlib
1217 "
1218
1219 THREADS_LIST='
1220     pthreads
1221     w32threads
1222     os2threads
1223 '
1224
1225 ARCH_LIST='
1226     aarch64
1227     alpha
1228     arm
1229     avr32
1230     avr32_ap
1231     avr32_uc
1232     bfin
1233     ia64
1234     m68k
1235     mips
1236     mips64
1237     parisc
1238     ppc
1239     ppc64
1240     s390
1241     sh4
1242     sparc
1243     sparc64
1244     tilegx
1245     tilepro
1246     tomi
1247     x86
1248     x86_32
1249     x86_64
1250 '
1251
1252 ARCH_EXT_LIST_ARM='
1253     armv5te
1254     armv6
1255     armv6t2
1256     neon
1257     vfp
1258     vfpv3
1259 '
1260
1261 ARCH_EXT_LIST_X86='
1262     amd3dnow
1263     amd3dnowext
1264     avx
1265     fma4
1266     mmx
1267     mmxext
1268     sse
1269     sse2
1270     sse3
1271     sse4
1272     sse42
1273     ssse3
1274 '
1275
1276 ARCH_EXT_LIST="
1277     $ARCH_EXT_LIST_ARM
1278     $ARCH_EXT_LIST_X86
1279     altivec
1280     ppc4xx
1281     vis
1282     mipsfpu
1283     mips32r2
1284     mipsdspr1
1285     mipsdspr2
1286 "
1287
1288 HAVE_LIST_CMDLINE='
1289     inline_asm
1290     symver
1291     yasm
1292 '
1293
1294 HAVE_LIST_PUB='
1295     bigendian
1296     fast_unaligned
1297     incompatible_fork_abi
1298 '
1299
1300 MATH_FUNCS="
1301     atanf
1302     atan2f
1303     cbrtf
1304     cosf
1305     exp2
1306     exp2f
1307     expf
1308     isinf
1309     isnan
1310     ldexpf
1311     llrint
1312     llrintf
1313     log2
1314     log2f
1315     log10f
1316     lrint
1317     lrintf
1318     powf
1319     rint
1320     round
1321     roundf
1322     sinf
1323     trunc
1324     truncf
1325 "
1326
1327 HAVE_LIST="
1328     $ARCH_EXT_LIST
1329     $(add_suffix _external $ARCH_EXT_LIST)
1330     $(add_suffix _inline   $ARCH_EXT_LIST)
1331     $HAVE_LIST_CMDLINE
1332     $HAVE_LIST_PUB
1333     $THREADS_LIST
1334     $MATH_FUNCS
1335     access
1336     aligned_malloc
1337     aligned_stack
1338     alsa_asoundlib_h
1339     altivec_h
1340     arpa_inet_h
1341     asm_mod_q
1342     asm_mod_y
1343     asm_types_h
1344     attribute_may_alias
1345     attribute_packed
1346     clock_gettime
1347     closesocket
1348     cmov
1349     CommandLineToArgvW
1350     cpunop
1351     CryptGenRandom
1352     dcbzl
1353     dev_bktr_ioctl_bt848_h
1354     dev_bktr_ioctl_meteor_h
1355     dev_ic_bt8xx_h
1356     dev_video_bktr_ioctl_bt848_h
1357     dev_video_meteor_ioctl_meteor_h
1358     direct_h
1359     dlfcn_h
1360     dlopen
1361     dos_paths
1362     dxva_h
1363     ebp_available
1364     ebx_available
1365     fast_64bit
1366     fast_clz
1367     fast_cmov
1368     fcntl
1369     fork
1370     getaddrinfo
1371     gethrtime
1372     getopt
1373     GetProcessAffinityMask
1374     GetProcessMemoryInfo
1375     GetProcessTimes
1376     GetSystemTimeAsFileTime
1377     getrusage
1378     getservbyport
1379     gettimeofday
1380     glob
1381     gnu_as
1382     ibm_asm
1383     inet_aton
1384     io_h
1385     isatty
1386     jack_port_get_latency_range
1387     kbhit
1388     ldbrx
1389     libdc1394_1
1390     libdc1394_2
1391     local_aligned_16
1392     local_aligned_8
1393     localtime_r
1394     loongson
1395     lzo1x_999_compress
1396     machine_ioctl_bt848_h
1397     machine_ioctl_meteor_h
1398     makeinfo
1399     malloc_h
1400     MapViewOfFile
1401     memalign
1402     mkstemp
1403     mm_empty
1404     mmap
1405     mprotect
1406     msvcrt
1407     nanosleep
1408     openjpeg_1_5_openjpeg_h
1409     PeekNamedPipe
1410     perl
1411     pod2man
1412     poll_h
1413     posix_memalign
1414     pthread_cancel
1415     rdtsc
1416     rsync_contimeout
1417     sched_getaffinity
1418     sdl
1419     sdl_video_size
1420     SetConsoleTextAttribute
1421     setmode
1422     setrlimit
1423     Sleep
1424     sndio_h
1425     socklen_t
1426     soundcard_h
1427     strerror_r
1428     struct_addrinfo
1429     struct_group_source_req
1430     struct_ip_mreq_source
1431     struct_ipv6_mreq
1432     struct_pollfd
1433     struct_rusage_ru_maxrss
1434     struct_sctp_event_subscribe
1435     struct_sockaddr_in6
1436     struct_sockaddr_sa_len
1437     struct_sockaddr_storage
1438     struct_v4l2_frmivalenum_discrete
1439     symver_asm_label
1440     symver_gnu_asm
1441     sysconf
1442     sysctl
1443     sys_mman_h
1444     sys_param_h
1445     sys_resource_h
1446     sys_select_h
1447     sys_soundcard_h
1448     sys_time_h
1449     sys_videoio_h
1450     termios_h
1451     texi2html
1452     threads
1453     unistd_h
1454     usleep
1455     vfp_args
1456     VirtualAlloc
1457     windows_h
1458     winsock2_h
1459     xform_asm
1460     xmm_clobbers
1461 "
1462
1463 # options emitted with CONFIG_ prefix but not available on the command line
1464 CONFIG_EXTRA="
1465     aandcttables
1466     ac3dsp
1467     error_resilience
1468     gcrypt
1469     golomb
1470     gplv3
1471     h264chroma
1472     h264dsp
1473     h264pred
1474     h264qpel
1475     huffman
1476     lgplv3
1477     lpc
1478     mpegaudio
1479     mpegaudiodsp
1480     mpegvideo
1481     mpegvideoenc
1482     nettle
1483     rangecoder
1484     rtpdec
1485     rtpenc_chain
1486     sinewin
1487     videodsp
1488     vp3dsp
1489 "
1490
1491 CMDLINE_SELECT="
1492     $ARCH_EXT_LIST
1493     $CONFIG_LIST
1494     $HAVE_LIST_CMDLINE
1495     $THREADS_LIST
1496     asm
1497     coverage
1498     cross_compile
1499     debug
1500     extra_warnings
1501     logging
1502     lto
1503     optimizations
1504     stripping
1505 "
1506
1507 PATHS_LIST='
1508     bindir
1509     datadir
1510     incdir
1511     libdir
1512     mandir
1513     prefix
1514     shlibdir
1515 '
1516
1517 CMDLINE_SET="
1518     $PATHS_LIST
1519     ar
1520     arch
1521     as
1522     assert_level
1523     build_suffix
1524     cc
1525     cpu
1526     cross_prefix
1527     cxx
1528     dep_cc
1529     extra_version
1530     host_cc
1531     host_cflags
1532     host_ld
1533     host_ldflags
1534     host_libs
1535     host_os
1536     install
1537     ld
1538     logfile
1539     malloc_prefix
1540     nm
1541     optflags
1542     pkg_config
1543     progs_suffix
1544     random_seed
1545     samples
1546     strip
1547     sysinclude
1548     sysroot
1549     target_exec
1550     target_os
1551     target_path
1552     toolchain
1553     valgrind
1554     yasmexe
1555 "
1556
1557 CMDLINE_APPEND="
1558     extra_cflags
1559     extra_cxxflags
1560 "
1561
1562 # code dependency declarations
1563
1564 # architecture extensions
1565
1566 armv5te_deps="arm"
1567 armv6_deps="arm"
1568 armv6t2_deps="arm"
1569 neon_deps="arm"
1570 vfp_deps="arm"
1571 vfpv3_deps="vfp"
1572
1573 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1574
1575 mipsfpu_deps="mips"
1576 mips32r2_deps="mips"
1577 mipsdspr1_deps="mips"
1578 mipsdspr2_deps="mips"
1579
1580 altivec_deps="ppc"
1581 ppc4xx_deps="ppc"
1582
1583 vis_deps="sparc"
1584
1585 x86_64_suggest="cmov fast_cmov"
1586
1587 amd3dnow_deps="mmx"
1588 amd3dnowext_deps="amd3dnow"
1589 mmx_deps="x86"
1590 mmxext_deps="mmx"
1591 sse_deps="mmxext"
1592 sse2_deps="sse"
1593 sse3_deps="sse2"
1594 ssse3_deps="sse3"
1595 sse4_deps="ssse3"
1596 sse42_deps="sse4"
1597 avx_deps="sse42"
1598 fma4_deps="avx"
1599
1600 mmx_external_deps="yasm"
1601 mmx_inline_deps="inline_asm"
1602 mmx_suggest="mmx_external mmx_inline"
1603
1604 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1605     eval dep=\$${ext}_deps
1606     eval ${ext}_external_deps='"${dep}_external"'
1607     eval ${ext}_inline_deps='"${dep}_inline"'
1608     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1609 done
1610
1611 aligned_stack_if_any="ppc x86"
1612 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1613 fast_clz_if_any="alpha avr32 mips ppc x86"
1614 fast_unaligned_if_any="ppc x86"
1615
1616 inline_asm_deps="!tms470"
1617 need_memalign="altivec neon sse"
1618
1619 symver_if_any="symver_asm_label symver_gnu_asm"
1620
1621 log2_deps="!msvcrt"
1622
1623 # subsystems
1624 dct_select="rdft"
1625 mdct_select="fft"
1626 rdft_select="fft"
1627 mpegaudio_select="mpegaudiodsp"
1628 mpegaudiodsp_select="dct"
1629 mpegvideo_select="videodsp"
1630 mpegvideoenc_select="mpegvideo"
1631
1632 # decoders / encoders
1633 aac_decoder_select="mdct sinewin"
1634 aac_encoder_select="mdct sinewin"
1635 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1636 ac3_decoder_select="mdct ac3dsp ac3_parser"
1637 ac3_encoder_select="mdct ac3dsp"
1638 ac3_fixed_encoder_select="mdct ac3dsp"
1639 alac_encoder_select="lpc"
1640 amrnb_decoder_select="lsp"
1641 amrwb_decoder_select="lsp"
1642 amv_encoder_select="aandcttables"
1643 atrac1_decoder_select="mdct sinewin"
1644 atrac3_decoder_select="mdct"
1645 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1646 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1647 cavs_decoder_select="golomb mpegvideo"
1648 comfortnoise_encoder_select="lpc"
1649 cook_decoder_select="mdct sinewin"
1650 cscd_decoder_select="lzo"
1651 cscd_decoder_suggest="zlib"
1652 dca_decoder_select="mdct"
1653 dirac_decoder_select="dwt golomb"
1654 dnxhd_encoder_select="aandcttables mpegvideoenc"
1655 dxa_decoder_select="zlib"
1656 eac3_decoder_select="ac3_decoder"
1657 eac3_encoder_select="ac3_encoder"
1658 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1659 eatgq_decoder_select="aandcttables"
1660 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1661 exr_decoder_select="zlib"
1662 ffv1_decoder_select="golomb rangecoder"
1663 ffv1_encoder_select="rangecoder"
1664 ffvhuff_encoder_select="huffman"
1665 flac_decoder_select="golomb"
1666 flac_encoder_select="golomb lpc"
1667 flashsv_decoder_select="zlib"
1668 flashsv_encoder_select="zlib"
1669 flashsv2_encoder_select="zlib"
1670 flashsv2_decoder_select="zlib"
1671 flv_decoder_select="h263_decoder"
1672 flv_encoder_select="h263_encoder"
1673 fraps_decoder_select="huffman"
1674 h261_decoder_select="error_resilience mpegvideo"
1675 h261_encoder_select="aandcttables mpegvideoenc"
1676 h263_decoder_select="error_resilience h263_parser mpegvideo"
1677 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1678 h263i_decoder_select="h263_decoder"
1679 h263p_encoder_select="h263_encoder"
1680 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1681 huffyuv_encoder_select="huffman"
1682 iac_decoder_select="fft mdct sinewin"
1683 imc_decoder_select="fft mdct sinewin"
1684 jpegls_decoder_select="golomb"
1685 jpegls_encoder_select="golomb"
1686 ljpeg_encoder_select="aandcttables mpegvideoenc"
1687 loco_decoder_select="golomb"
1688 mdec_decoder_select="error_resilience mpegvideo"
1689 mjpeg_encoder_select="aandcttables mpegvideoenc"
1690 mlp_decoder_select="mlp_parser"
1691 mp1_decoder_select="mpegaudio"
1692 mp1float_decoder_select="mpegaudio"
1693 mp2_decoder_select="mpegaudio"
1694 mp2float_decoder_select="mpegaudio"
1695 mp3_decoder_select="mpegaudio"
1696 mp3adu_decoder_select="mpegaudio"
1697 mp3adufloat_decoder_select="mpegaudio"
1698 mp3float_decoder_select="mpegaudio"
1699 mp3on4_decoder_select="mpegaudio"
1700 mp3on4float_decoder_select="mpegaudio"
1701 mpc7_decoder_select="mpegaudiodsp"
1702 mpc8_decoder_select="mpegaudiodsp"
1703 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1704 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1705 mpeg1video_decoder_select="error_resilience mpegvideo"
1706 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1707 mpeg2video_decoder_select="error_resilience mpegvideo"
1708 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1709 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1710 mpeg4_encoder_select="h263_encoder"
1711 msmpeg4v1_decoder_select="h263_decoder"
1712 msmpeg4v1_encoder_select="h263_encoder"
1713 msmpeg4v2_decoder_select="h263_decoder"
1714 msmpeg4v2_encoder_select="h263_encoder"
1715 msmpeg4v3_decoder_select="h263_decoder"
1716 msmpeg4v3_encoder_select="h263_encoder"
1717 mss2_decoder_select="vc1_decoder"
1718 nellymoser_decoder_select="mdct sinewin"
1719 nellymoser_encoder_select="mdct sinewin"
1720 nuv_decoder_select="lzo"
1721 png_decoder_select="zlib"
1722 png_encoder_select="zlib"
1723 qcelp_decoder_select="lsp"
1724 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1725 ra_144_encoder_select="lpc"
1726 ralf_decoder_select="golomb"
1727 rv10_decoder_select="h263_decoder"
1728 rv10_encoder_select="h263_encoder"
1729 rv20_decoder_select="h263_decoder"
1730 rv20_encoder_select="h263_encoder"
1731 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1732 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1733 shorten_decoder_select="golomb"
1734 sipr_decoder_select="lsp"
1735 snow_decoder_select="dwt rangecoder"
1736 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1737 sonic_decoder_select="golomb"
1738 sonic_encoder_select="golomb"
1739 sonic_ls_encoder_select="golomb"
1740 svq1_decoder_select="error_resilience mpegvideo"
1741 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1742 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1743 svq3_decoder_suggest="zlib"
1744 theora_decoder_select="vp3_decoder"
1745 tiff_decoder_suggest="zlib"
1746 tiff_encoder_suggest="zlib"
1747 truehd_decoder_select="mlp_parser"
1748 tscc_decoder_select="zlib"
1749 twinvq_decoder_select="mdct lsp sinewin"
1750 utvideo_encoder_select="huffman"
1751 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1752 vc1image_decoder_select="vc1_decoder"
1753 vorbis_decoder_select="mdct"
1754 vorbis_encoder_select="mdct"
1755 vp3_decoder_select="vp3dsp videodsp"
1756 vp5_decoder_select="vp3dsp videodsp"
1757 vp6_decoder_select="huffman vp3dsp videodsp"
1758 vp6a_decoder_select="vp6_decoder"
1759 vp6f_decoder_select="vp6_decoder"
1760 vp8_decoder_select="h264pred videodsp"
1761 wmapro_decoder_select="mdct sinewin"
1762 wmav1_decoder_select="mdct sinewin"
1763 wmav1_encoder_select="mdct sinewin"
1764 wmav2_decoder_select="mdct sinewin"
1765 wmav2_encoder_select="mdct sinewin"
1766 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1767 wmv1_decoder_select="h263_decoder"
1768 wmv1_encoder_select="h263_encoder"
1769 wmv2_decoder_select="h263_decoder"
1770 wmv2_encoder_select="h263_encoder"
1771 wmv3_decoder_select="vc1_decoder"
1772 wmv3image_decoder_select="wmv3_decoder"
1773 zerocodec_decoder_select="zlib"
1774 zlib_decoder_select="zlib"
1775 zlib_encoder_select="zlib"
1776 zmbv_decoder_select="zlib"
1777 zmbv_encoder_select="zlib"
1778
1779 # hardware accelerators
1780 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1781 vaapi_deps="va_va_h"
1782 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1783 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1784
1785 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1786 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1787 h264_dxva2_hwaccel_deps="dxva2api_h"
1788 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1789 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1790 h264_vda_decoder_select="vda h264_parser h264_decoder"
1791 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1792 h264_vda_hwaccel_select="vda h264_decoder"
1793 h264_vdpau_decoder_select="vdpau h264_decoder"
1794 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1795 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1796 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1797 mpeg2_crystalhd_decoder_select="crystalhd"
1798 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1799 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1800 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1801 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1802 mpeg4_crystalhd_decoder_select="crystalhd"
1803 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1804 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1805 msmpeg4_crystalhd_decoder_select="crystalhd"
1806 vc1_crystalhd_decoder_select="crystalhd"
1807 vc1_dxva2_hwaccel_deps="dxva2api_h"
1808 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1809 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1810 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1811 wmv3_crystalhd_decoder_select="crystalhd"
1812 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1813 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1814 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1815
1816 # parsers
1817 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1818 mpeg4video_parser_select="error_resilience mpegvideo"
1819 mpegvideo_parser_select="error_resilience mpegvideo"
1820 vc1_parser_select="error_resilience mpegvideo"
1821
1822 # external libraries
1823 libaacplus_encoder_deps="libaacplus"
1824 libcelt_decoder_deps="libcelt"
1825 libfaac_encoder_deps="libfaac"
1826 libfdk_aac_encoder_deps="libfdk_aac"
1827 libgsm_decoder_deps="libgsm"
1828 libgsm_encoder_deps="libgsm"
1829 libgsm_ms_decoder_deps="libgsm"
1830 libgsm_ms_encoder_deps="libgsm"
1831 libilbc_decoder_deps="libilbc"
1832 libilbc_encoder_deps="libilbc"
1833 libmodplug_demuxer_deps="libmodplug"
1834 libmp3lame_encoder_deps="libmp3lame"
1835 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1836 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1837 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1838 libopenjpeg_decoder_deps="libopenjpeg"
1839 libopenjpeg_encoder_deps="libopenjpeg"
1840 libopus_decoder_deps="libopus"
1841 libopus_encoder_deps="libopus"
1842 libschroedinger_decoder_deps="libschroedinger"
1843 libschroedinger_encoder_deps="libschroedinger"
1844 libspeex_decoder_deps="libspeex"
1845 libspeex_encoder_deps="libspeex"
1846 libstagefright_h264_decoder_deps="libstagefright_h264"
1847 libtheora_encoder_deps="libtheora"
1848 libtwolame_encoder_deps="libtwolame"
1849 libvo_aacenc_encoder_deps="libvo_aacenc"
1850 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1851 libvorbis_decoder_deps="libvorbis"
1852 libvorbis_encoder_deps="libvorbis"
1853 libvpx_decoder_deps="libvpx"
1854 libvpx_encoder_deps="libvpx"
1855 libx264_encoder_deps="libx264"
1856 libx264rgb_encoder_deps="libx264"
1857 libxavs_encoder_deps="libxavs"
1858 libxvid_encoder_deps="libxvid"
1859 libutvideo_decoder_deps="libutvideo"
1860 libutvideo_encoder_deps="libutvideo"
1861
1862 # demuxers / muxers
1863 ac3_demuxer_select="ac3_parser"
1864 asf_stream_muxer_select="asf_muxer"
1865 avisynth_demuxer_deps="avisynth"
1866 dirac_demuxer_select="dirac_parser"
1867 dts_demuxer_select="dca_parser"
1868 dtshd_demuxer_select="dca_parser"
1869 eac3_demuxer_select="ac3_parser"
1870 f4v_muxer_select="mov_muxer"
1871 flac_demuxer_select="flac_parser"
1872 ipod_muxer_select="mov_muxer"
1873 ismv_muxer_select="mov_muxer"
1874 libnut_demuxer_deps="libnut"
1875 libnut_muxer_deps="libnut"
1876 matroska_audio_muxer_select="matroska_muxer"
1877 matroska_demuxer_suggest="bzlib lzo zlib"
1878 mov_demuxer_suggest="zlib"
1879 mov_muxer_select="rtpenc_chain"
1880 mp3_demuxer_select="mpegaudio_parser"
1881 mp4_muxer_select="mov_muxer"
1882 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1883 mpegtsraw_demuxer_select="mpegts_demuxer"
1884 mxf_d10_muxer_select="mxf_muxer"
1885 ogg_demuxer_select="golomb"
1886 psp_muxer_select="mov_muxer"
1887 rtp_demuxer_select="sdp_demuxer"
1888 rtp_muxer_select="mpegvideo"
1889 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1890 rtsp_demuxer_select="http_protocol rtpdec"
1891 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1892 sap_demuxer_select="sdp_demuxer"
1893 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1894 sdp_demuxer_select="rtpdec"
1895 smoothstreaming_muxer_select="ismv_muxer"
1896 spdif_muxer_select="aac_parser"
1897 tak_demuxer_select="tak_parser"
1898 tg2_muxer_select="mov_muxer"
1899 tgp_muxer_select="mov_muxer"
1900 vobsub_demuxer_select="mpegps_demuxer"
1901 w64_demuxer_deps="wav_demuxer"
1902 w64_muxer_deps="wav_muxer"
1903
1904 # indevs / outdevs
1905 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1906 alsa_outdev_deps="alsa_asoundlib_h"
1907 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1908 caca_outdev_deps="libcaca"
1909 dshow_indev_deps="IBaseFilter"
1910 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1911 dv1394_indev_deps="dv1394 dv_demuxer"
1912 fbdev_indev_deps="linux_fb_h"
1913 iec61883_indev_deps="libiec61883"
1914 jack_indev_deps="jack_jack_h sem_timedwait"
1915 lavfi_indev_deps="avfilter"
1916 libcdio_indev_deps="libcdio"
1917 libdc1394_indev_deps="libdc1394"
1918 libv4l2_indev_deps="libv4l2"
1919 openal_indev_deps="openal"
1920 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1921 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1922 pulse_indev_deps="libpulse"
1923 sdl_outdev_deps="sdl"
1924 sndio_indev_deps="sndio_h"
1925 sndio_outdev_deps="sndio_h"
1926 v4l_indev_deps="linux_videodev_h"
1927 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1928 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1929 vfwcap_indev_extralibs="-lavicap32"
1930 x11grab_indev_deps="x11grab"
1931
1932 # protocols
1933 bluray_protocol_deps="libbluray"
1934 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1935 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1936 ffrtmpcrypt_protocol_select="tcp_protocol"
1937 ffrtmphttp_protocol_deps="!librtmp_protocol"
1938 ffrtmphttp_protocol_select="http_protocol"
1939 gopher_protocol_select="network"
1940 httpproxy_protocol_select="tcp_protocol"
1941 http_protocol_select="tcp_protocol"
1942 https_protocol_select="tls_protocol"
1943 librtmp_protocol_deps="librtmp"
1944 librtmpe_protocol_deps="librtmp"
1945 librtmps_protocol_deps="librtmp"
1946 librtmpt_protocol_deps="librtmp"
1947 librtmpte_protocol_deps="librtmp"
1948 mmsh_protocol_select="http_protocol"
1949 mmst_protocol_select="network"
1950 rtmp_protocol_deps="!librtmp_protocol"
1951 rtmp_protocol_select="tcp_protocol"
1952 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1953 rtmps_protocol_deps="!librtmp_protocol"
1954 rtmps_protocol_select="tls_protocol"
1955 rtmpt_protocol_select="ffrtmphttp_protocol"
1956 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1957 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1958 rtp_protocol_select="udp_protocol"
1959 sctp_protocol_deps="struct_sctp_event_subscribe"
1960 sctp_protocol_select="network"
1961 tcp_protocol_select="network"
1962 tls_protocol_deps_any="openssl gnutls"
1963 tls_protocol_select="tcp_protocol"
1964 udp_protocol_select="network"
1965
1966 # filters
1967 aconvert_filter_deps="swresample"
1968 amovie_filter_deps="avcodec avformat"
1969 aresample_filter_deps="swresample"
1970 ass_filter_deps="libass"
1971 asyncts_filter_deps="avresample"
1972 atempo_filter_deps="avcodec rdft"
1973 blackframe_filter_deps="gpl"
1974 boxblur_filter_deps="gpl"
1975 colormatrix_filter_deps="gpl"
1976 cropdetect_filter_deps="gpl"
1977 decimate_filter_deps="gpl avcodec"
1978 delogo_filter_deps="gpl"
1979 deshake_filter_deps="avcodec"
1980 drawtext_filter_deps="libfreetype"
1981 ebur128_filter_deps="gpl"
1982 flite_filter_deps="libflite"
1983 frei0r_filter_deps="frei0r dlopen"
1984 frei0r_filter_extralibs='$ldl'
1985 frei0r_src_filter_deps="frei0r dlopen"
1986 frei0r_src_filter_extralibs='$ldl'
1987 geq_filter_deps="gpl"
1988 hqdn3d_filter_deps="gpl"
1989 hue_filter_deps="gpl"
1990 kerndeint_filter_deps="gpl"
1991 movie_filter_deps="avcodec avformat"
1992 mp_filter_deps="gpl avcodec swscale inline_asm"
1993 mptestsrc_filter_deps="gpl"
1994 negate_filter_deps="lut_filter"
1995 resample_filter_deps="avresample"
1996 ocv_filter_deps="libopencv"
1997 pan_filter_deps="swresample"
1998 pp_filter_deps="gpl postproc"
1999 removelogo_filter_deps="avcodec avformat swscale"
2000 scale_filter_deps="swscale"
2001 smartblur_filter_deps="gpl swscale"
2002 showspectrum_filter_deps="avcodec rdft"
2003 subtitles_filter_deps="avformat avcodec libass"
2004 super2xsai_filter_deps="gpl"
2005 tinterlace_filter_deps="gpl"
2006 yadif_filter_deps="gpl"
2007 pixfmts_super2xsai_test_deps="super2xsai_filter"
2008 tinterlace_merge_test_deps="tinterlace_filter"
2009 tinterlace_pad_test_deps="tinterlace_filter"
2010
2011 # libraries
2012 avcodec_deps="avutil"
2013 avdevice_deps="avutil avcodec avformat"
2014 avfilter_deps="avutil"
2015 avformat_deps="avutil avcodec"
2016 avresample_deps="avutil"
2017 postproc_deps="avutil gpl"
2018 swscale_deps="avutil"
2019
2020 # programs
2021 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2022 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2023                setpts_filter null_filter anull_filter ffabuffersink_filter"
2024 ffplay_deps="avcodec avformat swscale swresample sdl"
2025 ffplay_select="ffbuffersink_filter rdft crop_filter"
2026 ffprobe_deps="avcodec avformat"
2027 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2028 ffserver_extralibs='$ldl'
2029
2030 # documentation
2031 podpages_deps="perl"
2032 manpages_deps="perl pod2man"
2033 htmlpages_deps="texi2html"
2034 txtpages_deps="makeinfo"
2035 doc_deps_any="manpages htmlpages podpages txtpages"
2036
2037 # default parameters
2038
2039 logfile="config.log"
2040
2041 # installation paths
2042 prefix_default="/usr/local"
2043 bindir_default='${prefix}/bin'
2044 datadir_default='${prefix}/share/ffmpeg'
2045 incdir_default='${prefix}/include'
2046 libdir_default='${prefix}/lib'
2047 mandir_default='${prefix}/share/man'
2048 shlibdir_default="$libdir_default"
2049
2050 # toolchain
2051 ar_default="ar"
2052 cc_default="gcc"
2053 cxx_default="g++"
2054 host_cc_default="gcc"
2055 cp_f="cp -f"
2056 install="install"
2057 ln_s="ln -sf"
2058 nm_default="nm -g"
2059 objformat="elf"
2060 pkg_config_default=pkg-config
2061 ranlib="ranlib"
2062 strip_default="strip"
2063 yasmexe_default="yasm"
2064
2065 nogas=":"
2066
2067 # machine
2068 arch_default=$(uname -m)
2069 cpu="generic"
2070
2071 # OS
2072 target_os_default=$(tolower $(uname -s))
2073 host_os=$target_os_default
2074
2075 # configurable options
2076 enable $PROGRAM_LIST
2077 enable $DOCUMENT_LIST
2078 enable $(filter_out avresample $LIBRARY_LIST)
2079 enable stripping
2080
2081 enable asm
2082 enable debug
2083 enable doc
2084 enable optimizations
2085 enable runtime_cpudetect
2086 enable safe_bitstream_reader
2087 enable static
2088 enable swscale_alpha
2089
2090 # build settings
2091 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2092 FFSERVERLDFLAGS=-Wl,-E
2093 LIBPREF="lib"
2094 LIBSUF=".a"
2095 FULLNAME='$(NAME)$(BUILDSUF)'
2096 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2097 SLIBPREF="lib"
2098 SLIBSUF=".so"
2099 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2100 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2101 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2102 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2103 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2104 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2105
2106 asflags_filter=echo
2107 cflags_filter=echo
2108 ldflags_filter=echo
2109
2110 AS_C='-c'
2111 AS_O='-o $@'
2112 CC_C='-c'
2113 CC_E='-E -o $@'
2114 CC_O='-o $@'
2115 CXX_C='-c'
2116 CXX_O='-o $@'
2117 LD_O='-o $@'
2118 LD_LIB='-l%'
2119 LD_PATH='-L'
2120 HOSTCC_C='-c'
2121 HOSTCC_O='-o $@'
2122 HOSTLD_O='-o $@'
2123
2124 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2125 host_libs='-lm'
2126 host_cflags_filter=echo
2127 host_ldflags_filter=echo
2128
2129 target_path='$(CURDIR)'
2130
2131 # since the object filename is not given with the -MM flag, the compiler
2132 # is only able to print the basename, and we must add the path ourselves
2133 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2134 DEPFLAGS='-MM'
2135
2136 # find source path
2137 if test -f configure; then
2138     source_path=.
2139 else
2140     source_path=$(cd $(dirname "$0"); pwd)
2141     echo "$source_path" | grep -q '[[:blank:]]' &&
2142         die "Out of tree builds are impossible with whitespace in source path."
2143     test -e "$source_path/config.h" &&
2144         die "Out of tree builds are impossible with config.h in source dir."
2145 fi
2146
2147 for v in "$@"; do
2148     r=${v#*=}
2149     l=${v%"$r"}
2150     r=$(sh_quote "$r")
2151     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2152 done
2153
2154 find_things(){
2155     thing=$1
2156     pattern=$2
2157     file=$source_path/$3
2158     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2159 }
2160
2161 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2162 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2163 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2164 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2165 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2166 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2167 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2168 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2169 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2170 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2171 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2172
2173 ALL_COMPONENTS="
2174     $BSF_LIST
2175     $DECODER_LIST
2176     $DEMUXER_LIST
2177     $ENCODER_LIST
2178     $FILTER_LIST
2179     $HWACCEL_LIST
2180     $INDEV_LIST
2181     $MUXER_LIST
2182     $OUTDEV_LIST
2183     $PARSER_LIST
2184     $PROTOCOL_LIST
2185 "
2186
2187 for n in $COMPONENT_LIST; do
2188     v=$(toupper ${n%s})_LIST
2189     eval enable \$$v
2190     eval ${n}_if_any="\$$v"
2191 done
2192
2193 enable $ARCH_EXT_LIST
2194
2195 die_unknown(){
2196     echo "Unknown option \"$1\"."
2197     echo "See $0 --help for available options."
2198     exit 1
2199 }
2200
2201 show_list() {
2202     suffix=_$1
2203     shift
2204     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2205     exit 0
2206 }
2207
2208 rand_list(){
2209     IFS=', '
2210     set -- $*
2211     unset IFS
2212     for thing; do
2213         comp=${thing%:*}
2214         prob=${thing#$comp}
2215         prob=${prob#:}
2216         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2217         echo "prob ${prob:-0.5}"
2218         printf '%s\n' $comp
2219     done
2220 }
2221
2222 do_random(){
2223     action=$1
2224     shift
2225     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2226     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2227 }
2228
2229 for opt do
2230     optval="${opt#*=}"
2231     case "$opt" in
2232         --extra-ldflags=*)
2233             add_ldflags $optval
2234         ;;
2235         --extra-libs=*)
2236             add_extralibs $optval
2237         ;;
2238         --disable-devices)
2239             disable $INDEV_LIST $OUTDEV_LIST
2240         ;;
2241         --enable-debug=*)
2242             debuglevel="$optval"
2243         ;;
2244         --disable-programs)
2245             disable $PROGRAM_LIST
2246         ;;
2247         --disable-everything)
2248             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2249         ;;
2250         --disable-all)
2251             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2252             disable $LIBRARY_LIST $PROGRAM_LIST doc
2253         ;;
2254         --enable-random|--disable-random)
2255             action=${opt%%-random}
2256             do_random ${action#--} $COMPONENT_LIST
2257         ;;
2258         --enable-random=*|--disable-random=*)
2259             action=${opt%%-random=*}
2260             do_random ${action#--} $optval
2261         ;;
2262         --enable-*=*|--disable-*=*)
2263             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2264             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2265             eval list=\$$(toupper $thing)_LIST
2266             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2267             list=$(filter "$name" $list)
2268             [ "$list" = "" ] && warn "Option $opt did not match anything"
2269             $action $list
2270         ;;
2271         --enable-?*|--disable-?*)
2272             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2273             if is_in $option $COMPONENT_LIST; then
2274                 test $action = disable && action=unset
2275                 eval $action \$$(toupper ${option%s})_LIST
2276             elif is_in $option $CMDLINE_SELECT; then
2277                 $action $option
2278             else
2279                 die_unknown $opt
2280             fi
2281         ;;
2282         --list-*)
2283             NAME="${opt#--list-}"
2284             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2285             NAME=${NAME%s}
2286             eval show_list $NAME \$$(toupper $NAME)_LIST
2287         ;;
2288         --help|-h) show_help
2289         ;;
2290         --fatal-warnings) enable fatal_warnings
2291         ;;
2292         *)
2293             optname="${opt%%=*}"
2294             optname="${optname#--}"
2295             optname=$(echo "$optname" | sed 's/-/_/g')
2296             if is_in $optname $CMDLINE_SET; then
2297                 eval $optname='$optval'
2298             elif is_in $optname $CMDLINE_APPEND; then
2299                 append $optname "$optval"
2300             else
2301                 die_unknown $opt
2302             fi
2303         ;;
2304     esac
2305 done
2306
2307 disabled logging && logfile=/dev/null
2308
2309 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2310 set >> $logfile
2311
2312 test -n "$cross_prefix" && enable cross_compile
2313
2314 if enabled cross_compile; then
2315     test -n "$arch" && test -n "$target_os" ||
2316         die "Must specify target arch and OS when cross-compiling"
2317 fi
2318
2319 ar_default="${cross_prefix}${ar_default}"
2320 cc_default="${cross_prefix}${cc_default}"
2321 cxx_default="${cross_prefix}${cxx_default}"
2322 nm_default="${cross_prefix}${nm_default}"
2323 pkg_config_default="${cross_prefix}${pkg_config_default}"
2324 ranlib="${cross_prefix}${ranlib}"
2325 strip_default="${cross_prefix}${strip_default}"
2326
2327 sysinclude_default="${sysroot}/usr/include"
2328
2329 case "$toolchain" in
2330     clang-asan)
2331         cc_default="clang"
2332         add_cflags  -faddress-sanitizer
2333         add_ldflags -faddress-sanitizer
2334     ;;
2335     clang-tsan)
2336         cc_default="clang"
2337         add_cflags  -fthread-sanitizer
2338         add_ldflags -fthread-sanitizer
2339     ;;
2340     msvc)
2341         cc_default="c99wrap cl"
2342         ld_default="c99wrap link"
2343         nm_default="dumpbin -symbols"
2344         ar_default="lib"
2345         target_os_default="win32"
2346     ;;
2347     ?*)
2348         die "Unknown toolchain $toolchain"
2349     ;;
2350 esac
2351
2352 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2353 enabled cross_compile || host_cc_default=$cc
2354 set_default host_cc
2355
2356 if ! $pkg_config --version >/dev/null 2>&1; then
2357     warn "$pkg_config not found, library detection may fail."
2358     pkg_config=false
2359 fi
2360
2361 exesuf() {
2362     case $1 in
2363         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2364     esac
2365 }
2366
2367 EXESUF=$(exesuf $target_os)
2368 HOSTEXESUF=$(exesuf $host_os)
2369
2370 # set temporary file name
2371 : ${TMPDIR:=$TEMPDIR}
2372 : ${TMPDIR:=$TMP}
2373 : ${TMPDIR:=/tmp}
2374
2375 if ! check_cmd mktemp -u XXXXXX; then
2376     # simple replacement for missing mktemp
2377     # NOT SAFE FOR GENERAL USE
2378     mktemp(){
2379         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2380     }
2381 fi
2382
2383 tmpfile(){
2384     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2385         (set -C; exec > $tmp) 2>/dev/null ||
2386         die "Unable to create temporary file in $TMPDIR."
2387     append TMPFILES $tmp
2388     eval $1=$tmp
2389 }
2390
2391 trap 'rm -f -- $TMPFILES' EXIT
2392
2393 tmpfile TMPASM .asm
2394 tmpfile TMPC   .c
2395 tmpfile TMPCPP .cpp
2396 tmpfile TMPE   $EXESUF
2397 tmpfile TMPH   .h
2398 tmpfile TMPO   .o
2399 tmpfile TMPS   .S
2400 tmpfile TMPSH  .sh
2401 tmpfile TMPV   .ver
2402
2403 unset -f mktemp
2404
2405 chmod +x $TMPE
2406
2407 # make sure we can execute files in $TMPDIR
2408 cat > $TMPSH 2>> $logfile <<EOF
2409 #! /bin/sh
2410 EOF
2411 chmod +x $TMPSH >> $logfile 2>&1
2412 if ! $TMPSH >> $logfile 2>&1; then
2413     cat <<EOF
2414 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2415 variable to another directory and make sure that it is not mounted noexec.
2416 EOF
2417     die "Sanity test failed."
2418 fi
2419
2420 ccc_flags(){
2421     for flag; do
2422         case $flag in
2423             -std=c99)           echo -c99                       ;;
2424             -mcpu=*)            echo -arch ${flag#*=}           ;;
2425             -mieee)             echo -ieee                      ;;
2426             -O*|-fast)          echo $flag                      ;;
2427             -fno-math-errno)    echo -assume nomath_errno       ;;
2428             -g)                 echo -g3                        ;;
2429             -Wall)              echo -msg_enable level2         ;;
2430             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2431             -Wl,*)              echo $flag                      ;;
2432             -f*|-W*)                                            ;;
2433             *)                  echo $flag                      ;;
2434         esac
2435    done
2436 }
2437
2438 msvc_flags(){
2439     for flag; do
2440         case $flag in
2441             -fomit-frame-pointer) echo -Oy ;;
2442             -g)                   echo -Z7 ;;
2443             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2444                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2445                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2446                                        -wd4554 \
2447                                        -wd4996 -wd4273 ;;
2448             -std=c99)             ;;
2449             -fno-math-errno)      ;;
2450             -fno-common)          ;;
2451             -fno-signed-zeros)    ;;
2452             -fPIC)                ;;
2453             -lz)                  echo zlib.lib ;;
2454             -lavifil32)           echo vfw32.lib ;;
2455             -lavicap32)           echo vfw32.lib user32.lib ;;
2456             -l*)                  echo ${flag#-l}.lib ;;
2457             *)                    echo $flag ;;
2458         esac
2459     done
2460 }
2461
2462 pgi_flags(){
2463     for flag; do
2464         case $flag in
2465             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2466             -fomit-frame-pointer) echo -Mnoframe ;;
2467             -g)                   echo -gopt ;;
2468             *)                    echo $flag ;;
2469         esac
2470     done
2471 }
2472
2473 suncc_flags(){
2474     for flag; do
2475         case $flag in
2476             -march=*|-mcpu=*)
2477                 case "${flag#*=}" in
2478                     native)                   echo -xtarget=native       ;;
2479                     v9|niagara)               echo -xarch=sparc          ;;
2480                     ultrasparc)               echo -xarch=sparcvis       ;;
2481                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2482                     i586|pentium)             echo -xchip=pentium        ;;
2483                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2484                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2485                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2486                     pentium4*)          echo -xtarget=pentium4           ;;
2487                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2488                     *-sse3)             echo -xarch=sse3                 ;;
2489                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2490                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2491                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2492                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2493                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2494                     k8|opteron|athlon64|athlon-fx)
2495                                               echo -xarch=sse2a          ;;
2496                     athlon*)                  echo -xarch=pentium_proa   ;;
2497                 esac
2498                 ;;
2499             -std=c99)             echo -xc99              ;;
2500             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2501             -fPIC)                echo -KPIC -xcode=pic32 ;;
2502             -W*,*)                echo $flag              ;;
2503             -f*-*|-W*)                                    ;;
2504             *)                    echo $flag              ;;
2505         esac
2506     done
2507 }
2508
2509 tms470_flags(){
2510     for flag; do
2511         case $flag in
2512             -march=*|-mcpu=*)
2513                 case "${flag#*=}" in
2514                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2515                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2516                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2517                     armv6*|arm11*)          echo -mv=6   ;;
2518                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2519                                             echo -mv=5e  ;;
2520                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2521                 esac
2522                 ;;
2523             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2524             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2525             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2526             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2527             -msoft-float)   echo --float_support=vfplib       ;;
2528             -O[0-3]|-mf=*)  echo $flag                        ;;
2529             -g)             echo -g -mn                       ;;
2530             -pds=*)         echo $flag                        ;;
2531             -D*|-I*)        echo $flag                        ;;
2532             --gcc|--abi=*)  echo $flag                        ;;
2533             -me)            echo $flag                        ;;
2534         esac
2535     done
2536 }
2537
2538 probe_cc(){
2539     pfx=$1
2540     _cc=$2
2541
2542     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2543     unset _ld_o _ldflags _ld_lib _ld_path
2544     unset _depflags _DEPCMD _DEPFLAGS
2545     _flags_filter=echo
2546
2547     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2548         _type=llvm_gcc
2549         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2550         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2551         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2552         _cflags_speed='-O3'
2553         _cflags_size='-Os'
2554     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2555         _type=gcc
2556         gcc_version=$($_cc --version | head -n1)
2557         gcc_basever=$($_cc -dumpversion)
2558         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2559         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2560         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2561         if ! $_cc -dumpversion | grep -q '^2\.'; then
2562             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2563         fi
2564         _cflags_speed='-O3'
2565         _cflags_size='-Os'
2566     elif $_cc --version 2>/dev/null | grep -q Intel; then
2567         _type=icc
2568         _ident=$($_cc --version | head -n1)
2569         _depflags='-MMD'
2570         _cflags_speed='-O3'
2571         _cflags_size='-Os'
2572         _cflags_noopt='-O1'
2573     elif $_cc -v 2>&1 | grep -q xlc; then
2574         _type=xlc
2575         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2576         _cflags_speed='-O5'
2577         _cflags_size='-O5 -qcompact'
2578     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2579         _type=ccc
2580         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2581         _DEPFLAGS='-M'
2582         _cflags_speed='-fast'
2583         _cflags_size='-O1'
2584         _flags_filter=ccc_flags
2585     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2586         test -d "$sysroot" || die "No valid sysroot specified."
2587         _type=armcc
2588         _ident=$($_cc --vsn | head -n1)
2589         armcc_conf="$PWD/armcc.conf"
2590         $_cc --arm_linux_configure                 \
2591              --arm_linux_config_file="$armcc_conf" \
2592              --configure_sysroot="$sysroot"        \
2593              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2594              die "Error creating armcc configuration file."
2595         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2596         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2597         as_default="${cross_prefix}gcc"
2598         _depflags='-MMD'
2599         _cflags_speed='-O3'
2600         _cflags_size='-Os'
2601     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2602         _type=tms470
2603         _ident=$($_cc -version | head -n1 | tr -s ' ')
2604         _flags='--gcc --abi=eabi -me'
2605         _cc_e='-ppl -fe=$@'
2606         _cc_o='-fe=$@'
2607         _depflags='-ppa -ppd=$(@:.o=.d)'
2608         _cflags_speed='-O3 -mf=5'
2609         _cflags_size='-O3 -mf=2'
2610         _flags_filter=tms470_flags
2611     elif $_cc -v 2>&1 | grep -q clang; then
2612         _type=clang
2613         _ident=$($_cc --version | head -n1)
2614         _depflags='-MMD'
2615         _cflags_speed='-O3'
2616         _cflags_size='-Os'
2617     elif $_cc -V 2>&1 | grep -q Sun; then
2618         _type=suncc
2619         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2620         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2621         _DEPFLAGS='-xM1 -xc99'
2622         _ldflags='-std=c99'
2623         _cflags_speed='-O5'
2624         _cflags_size='-O5 -xspace'
2625         _flags_filter=suncc_flags
2626     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2627         _type=pathscale
2628         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2629         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2630         _cflags_speed='-O2'
2631         _cflags_size='-Os'
2632         _flags_filter='filter_out -Wdisabled-optimization'
2633     elif $_cc -v 2>&1 | grep -q Open64; then
2634         _type=open64
2635         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2636         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2637         _cflags_speed='-O2'
2638         _cflags_size='-Os'
2639         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2640     elif $_cc -V 2>&1 | grep -q Portland; then
2641         _type=pgi
2642         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2643         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2644         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2645         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2646         _cflags_noopt="-O1"
2647         _flags_filter=pgi_flags
2648     elif $_cc 2>&1 | grep -q Microsoft; then
2649         _type=msvc
2650         _ident=$($cc 2>&1 | head -n1)
2651         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2652         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2653         _cflags_speed="-O2"
2654         _cflags_size="-O1"
2655         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2656         if $_cc 2>&1 | grep -q Linker; then
2657             _ld_o='-out $@'
2658         else
2659             _ld_o='-Fe$@'
2660         fi
2661         _cc_o='-Fo $@'
2662         _cc_e='-P -Fi $@'
2663         _flags_filter=msvc_flags
2664         _ld_lib='lib%.a'
2665         _ld_path='-libpath:'
2666         _flags='-nologo'
2667         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2668         if [ $pfx = hostcc ]; then
2669             append _cflags -Dsnprintf=_snprintf
2670         fi
2671         disable stripping
2672     fi
2673
2674     eval ${pfx}_type=\$_type
2675     eval ${pfx}_ident=\$_ident
2676 }
2677
2678 set_ccvars(){
2679     eval ${1}_C=\${_cc_c-\${${1}_C}}
2680     eval ${1}_E=\${_cc_e-\${${1}_E}}
2681     eval ${1}_O=\${_cc_o-\${${1}_O}}
2682
2683     if [ -n "$_depflags" ]; then
2684         eval ${1}_DEPFLAGS=\$_depflags
2685     else
2686         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2687         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2688         eval DEP${1}FLAGS=\$_flags
2689     fi
2690 }
2691
2692 probe_cc cc "$cc"
2693 cflags_filter=$_flags_filter
2694 cflags_speed=$_cflags_speed
2695 cflags_size=$_cflags_size
2696 cflags_noopt=$_cflags_noopt
2697 add_cflags $_flags $_cflags
2698 cc_ldflags=$_ldflags
2699 set_ccvars CC
2700
2701 probe_cc hostcc "$host_cc"
2702 host_cflags_filter=$_flags_filter
2703 add_host_cflags  $_flags $_cflags
2704 set_ccvars HOSTCC
2705
2706 test -n "$cc_type" && enable $cc_type ||
2707     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2708
2709 : ${as_default:=$cc}
2710 : ${dep_cc_default:=$cc}
2711 : ${ld_default:=$cc}
2712 : ${host_ld_default:=$host_cc}
2713 set_default ar as dep_cc ld host_ld
2714
2715 probe_cc as "$as"
2716 asflags_filter=$_flags_filter
2717 add_asflags $_flags $_cflags
2718 set_ccvars AS
2719
2720 probe_cc ld "$ld"
2721 ldflags_filter=$_flags_filter
2722 add_ldflags $_flags $_ldflags
2723 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2724 LD_O=${_ld_o-$LD_O}
2725 LD_LIB=${_ld_lib-$LD_LIB}
2726 LD_PATH=${_ld_path-$LD_PATH}
2727
2728 probe_cc hostld "$host_ld"
2729 host_ldflags_filter=$_flags_filter
2730 add_host_ldflags $_flags $_ldflags
2731 HOSTLD_O=${_ld_o-$HOSTLD_O}
2732
2733 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2734     probe_cc depcc "$dep_cc"
2735     CCDEP=${_DEPCMD:-$DEPCMD}
2736     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2737     DEPCCFLAGS=$_flags
2738 fi
2739
2740 if $ar 2>&1 | grep -q Microsoft; then
2741     arflags="-nologo"
2742     ar_o='-out:$@'
2743 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2744     arflags="rq"
2745     ar_o='$@'
2746 else
2747     arflags="rc"
2748     ar_o='$@'
2749 fi
2750
2751 add_cflags $extra_cflags
2752 add_cxxflags $extra_cxxflags
2753 add_asflags $extra_cflags
2754
2755 if test -n "$sysroot"; then
2756     case "$cc_type" in
2757         gcc|llvm_gcc|clang)
2758             add_cppflags --sysroot="$sysroot"
2759             add_ldflags --sysroot="$sysroot"
2760         ;;
2761         tms470)
2762             add_cppflags -I"$sysinclude"
2763             add_ldflags  --sysroot="$sysroot"
2764         ;;
2765     esac
2766 fi
2767
2768 if test "$cpu" = host; then
2769     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2770
2771     case "$cc_type" in
2772         gcc|llvm_gcc)
2773             check_native(){
2774                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2775                 sed -n "/cc1.*$1=/{
2776                             s/.*$1=\\([^ ]*\\).*/\\1/
2777                             p
2778                             q
2779                         }" $TMPE
2780             }
2781             cpu=$(check_native -march || check_native -mcpu)
2782         ;;
2783     esac
2784
2785     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2786 fi
2787
2788 # Deal with common $arch aliases
2789 case "$arch" in
2790     aarch64|arm64)
2791         arch="aarch64"
2792     ;;
2793     arm*|iPad*)
2794         arch="arm"
2795     ;;
2796     mips*|IP*)
2797         arch="mips"
2798     ;;
2799     parisc*|hppa*)
2800         arch="parisc"
2801     ;;
2802     "Power Macintosh"|ppc*|powerpc*)
2803         arch="ppc"
2804     ;;
2805     s390|s390x)
2806         arch="s390"
2807     ;;
2808     sh4|sh)
2809         arch="sh4"
2810     ;;
2811     sun4u|sparc*)
2812         arch="sparc"
2813     ;;
2814     tilegx|tile-gx)
2815         arch="tilegx"
2816     ;;
2817     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2818         arch="x86"
2819     ;;
2820 esac
2821
2822 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2823 enable $arch
2824
2825 # Add processor-specific flags
2826 if enabled aarch64; then
2827
2828     case $cpu in
2829         armv*)
2830             cpuflags="-march=$cpu"
2831         ;;
2832         *)
2833             cpuflags="-mcpu=$cpu"
2834         ;;
2835     esac
2836
2837 elif enabled alpha; then
2838
2839     cpuflags="-mcpu=$cpu"
2840
2841 elif enabled arm; then
2842
2843     check_arm_arch() {
2844         check_cpp_condition stddef.h \
2845             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2846             $cpuflags
2847     }
2848
2849     probe_arm_arch() {
2850         if   check_arm_arch 4;        then echo armv4;
2851         elif check_arm_arch 4T;       then echo armv4t;
2852         elif check_arm_arch 5;        then echo armv5;
2853         elif check_arm_arch 5E;       then echo armv5e;
2854         elif check_arm_arch 5T;       then echo armv5t;
2855         elif check_arm_arch 5TE;      then echo armv5te;
2856         elif check_arm_arch 5TEJ;     then echo armv5te;
2857         elif check_arm_arch 6;        then echo armv6;
2858         elif check_arm_arch 6J;       then echo armv6j;
2859         elif check_arm_arch 6K;       then echo armv6k;
2860         elif check_arm_arch 6Z;       then echo armv6z;
2861         elif check_arm_arch 6ZK;      then echo armv6zk;
2862         elif check_arm_arch 6T2;      then echo armv6t2;
2863         elif check_arm_arch 7;        then echo armv7;
2864         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2865         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2866         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2867         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2868         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2869         fi
2870     }
2871
2872     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2873
2874     case $cpu in
2875         armv*)
2876             cpuflags="-march=$cpu"
2877             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2878         ;;
2879         *)
2880             cpuflags="-mcpu=$cpu"
2881             case $cpu in
2882                 cortex-a*)                               subarch=armv7a  ;;
2883                 cortex-r*)                               subarch=armv7r  ;;
2884                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2885                 arm11*)                                  subarch=armv6   ;;
2886                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2887                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2888                 *)                             subarch=$(probe_arm_arch) ;;
2889             esac
2890         ;;
2891     esac
2892
2893     case "$subarch" in
2894         armv5t*)    enable fast_clz                ;;
2895         armv[6-8]*) enable fast_clz fast_unaligned ;;
2896     esac
2897
2898 elif enabled avr32; then
2899
2900     case $cpu in
2901         ap7[02]0[0-2])
2902             subarch="avr32_ap"
2903             cpuflags="-mpart=$cpu"
2904         ;;
2905         ap)
2906             subarch="avr32_ap"
2907             cpuflags="-march=$cpu"
2908         ;;
2909         uc3[ab]*)
2910             subarch="avr32_uc"
2911             cpuflags="-mcpu=$cpu"
2912         ;;
2913         uc)
2914             subarch="avr32_uc"
2915             cpuflags="-march=$cpu"
2916         ;;
2917     esac
2918
2919 elif enabled bfin; then
2920
2921     cpuflags="-mcpu=$cpu"
2922
2923 elif enabled mips; then
2924
2925     cpuflags="-march=$cpu"
2926
2927     case $cpu in
2928         24kc)
2929             disable mipsfpu
2930             disable mipsdspr1
2931             disable mipsdspr2
2932         ;;
2933         24kf*)
2934             disable mipsdspr1
2935             disable mipsdspr2
2936         ;;
2937         24kec|34kc|1004kc)
2938             disable mipsfpu
2939             disable mipsdspr2
2940         ;;
2941         24kef*|34kf*|1004kf*)
2942             disable mipsdspr2
2943         ;;
2944         74kc)
2945             disable mipsfpu
2946         ;;
2947     esac
2948
2949 elif enabled ppc; then
2950
2951     case $(tolower $cpu) in
2952         601|ppc601|powerpc601)
2953             cpuflags="-mcpu=601"
2954             disable altivec
2955         ;;
2956         603*|ppc603*|powerpc603*)
2957             cpuflags="-mcpu=603"
2958             disable altivec
2959         ;;
2960         604*|ppc604*|powerpc604*)
2961             cpuflags="-mcpu=604"
2962             disable altivec
2963         ;;
2964         g3|75*|ppc75*|powerpc75*)
2965             cpuflags="-mcpu=750"
2966             disable altivec
2967         ;;
2968         g4|745*|ppc745*|powerpc745*)
2969             cpuflags="-mcpu=7450"
2970         ;;
2971         74*|ppc74*|powerpc74*)
2972             cpuflags="-mcpu=7400"
2973         ;;
2974         g5|970|ppc970|powerpc970)
2975             cpuflags="-mcpu=970"
2976         ;;
2977         power[3-7]*)
2978             cpuflags="-mcpu=$cpu"
2979         ;;
2980         cell)
2981             cpuflags="-mcpu=cell"
2982             enable ldbrx
2983         ;;
2984         e500mc)
2985             cpuflags="-mcpu=e500mc"
2986             disable altivec
2987         ;;
2988         e500v2)
2989             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2990             disable altivec
2991         ;;
2992         e500)
2993             cpuflags="-mcpu=8540 -mhard-float"
2994             disable altivec
2995         ;;
2996     esac
2997
2998 elif enabled sparc; then
2999
3000     case $cpu in
3001         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3002             cpuflags="-mcpu=$cpu"
3003             disable vis
3004         ;;
3005         ultrasparc*|niagara[234])
3006             cpuflags="-mcpu=$cpu"
3007         ;;
3008     esac
3009
3010 elif enabled x86; then
3011
3012     case $cpu in
3013         i[345]86|pentium)
3014             cpuflags="-march=$cpu"
3015             disable mmx
3016         ;;
3017         # targets that do NOT support conditional mov (cmov)
3018         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3019             cpuflags="-march=$cpu"
3020             disable cmov
3021         ;;
3022         # targets that do support conditional mov (cmov)
3023         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3024             cpuflags="-march=$cpu"
3025             enable cmov
3026             enable fast_cmov
3027         ;;
3028         # targets that do support conditional mov but on which it's slow
3029         pentium4|pentium4m|prescott|nocona)
3030             cpuflags="-march=$cpu"
3031             enable cmov
3032             disable fast_cmov
3033         ;;
3034     esac
3035
3036 fi
3037
3038 if [ "$cpu" != generic ]; then
3039     add_cflags  $cpuflags
3040     add_asflags $cpuflags
3041 fi
3042
3043 # compiler sanity check
3044 check_exec <<EOF
3045 int main(void){ return 0; }
3046 EOF
3047 if test "$?" != 0; then
3048     echo "$cc is unable to create an executable file."
3049     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3050         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3051         echo "Only do this if you know what cross compiling means."
3052     fi
3053     die "C compiler test failed."
3054 fi
3055
3056 add_cppflags -D_ISOC99_SOURCE
3057 add_cxxflags -D__STDC_CONSTANT_MACROS
3058 check_cflags -std=c99
3059 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3060 #include <stdlib.h>
3061 EOF
3062 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3063 #include <stdlib.h>
3064 EOF
3065
3066 check_host_cflags -std=c99
3067 check_host_cflags -Wall
3068
3069 check_64bit(){
3070     arch32=$1
3071     arch64=$2
3072     expr=$3
3073     check_code cc "" "int test[2*($expr) - 1]" &&
3074         subarch=$arch64 || subarch=$arch32
3075 }
3076
3077 case "$arch" in
3078     alpha|ia64)
3079         spic=$shared
3080     ;;
3081     mips)
3082         check_64bit mips mips64 '_MIPS_SIM > 1'
3083         spic=$shared
3084     ;;
3085     parisc)
3086         check_64bit parisc parisc64 'sizeof(void *) > 4'
3087         spic=$shared
3088     ;;
3089     ppc)
3090         check_64bit ppc ppc64 'sizeof(void *) > 4'
3091         spic=$shared
3092     ;;
3093     sparc)
3094         check_64bit sparc sparc64 'sizeof(void *) > 4'
3095         spic=$shared
3096     ;;
3097     x86)
3098         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3099         if test "$subarch" = "x86_64"; then
3100             spic=$shared
3101         fi
3102     ;;
3103     ppc)
3104         check_cc <<EOF && subarch="ppc64"
3105         int test[(int)sizeof(char*) - 7];
3106 EOF
3107     ;;
3108 esac
3109
3110 enable $subarch
3111 enabled spic && enable pic
3112
3113 # OS specific
3114 case $target_os in
3115     haiku)
3116         prefix_default="/boot/common"
3117         network_extralibs="-lnetwork"
3118         host_libs=
3119         ;;
3120     sunos)
3121         FFSERVERLDFLAGS=""
3122         SHFLAGS='-shared -Wl,-h,$$(@F)'
3123         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3124         network_extralibs="-lsocket -lnsl"
3125         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3126         # When using suncc to build, the Solaris linker will mark
3127         # an executable with each instruction set encountered by
3128         # the Solaris assembler.  As our libraries contain their own
3129         # guards for processor-specific code, instead suppress
3130         # generation of the HWCAPS ELF section on Solaris x86 only.
3131         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3132         nm_default='nm -P -g'
3133         ;;
3134     netbsd)
3135         disable symver
3136         oss_indev_extralibs="-lossaudio"
3137         oss_outdev_extralibs="-lossaudio"
3138         enabled gcc || check_ldflags -Wl,-zmuldefs
3139         ;;
3140     openbsd|bitrig)
3141         # On OpenBSD 4.5. the compiler does not use PIC unless
3142         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3143         # however the generated executable will not do anything
3144         # (simply quits with exit-code 1, no crash, no output).
3145         # Thus explicitly enable PIC here.
3146         enable pic
3147         disable symver
3148         SHFLAGS='-shared'
3149         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3150         SLIB_INSTALL_LINKS=
3151         oss_indev_extralibs="-lossaudio"
3152         oss_outdev_extralibs="-lossaudio"
3153         ;;
3154     dragonfly)
3155         disable symver
3156         ;;
3157     freebsd)
3158         ;;
3159     bsd/os)
3160         add_extralibs -lpoll -lgnugetopt
3161         strip="strip -d"
3162         ;;
3163     darwin)
3164         gas="gas-preprocessor.pl $cc"
3165         enabled ppc && add_asflags -force_cpusubtype_ALL
3166         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3167         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3168         strip="${strip} -x"
3169         add_ldflags -Wl,-dynamic,-search_paths_first
3170         SLIBSUF=".dylib"
3171         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3172         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3173         FFSERVERLDFLAGS=-Wl,-bind_at_load
3174         objformat="macho"
3175         enabled x86_64 && objformat="macho64"
3176         enabled_any pic shared ||
3177             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3178         ;;
3179     mingw32*)
3180         if test $target_os = "mingw32ce"; then
3181             disable network
3182         else
3183             target_os=mingw32
3184         fi
3185         LIBTARGET=i386
3186         if enabled x86_64; then
3187             LIBTARGET="i386:x86-64"
3188         elif enabled arm; then
3189             LIBTARGET=arm-wince
3190         fi
3191         shlibdir_default="$bindir_default"
3192         SLIBPREF=""
3193         SLIBSUF=".dll"
3194         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3195         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3196         dlltool="${cross_prefix}dlltool"
3197         if check_cmd lib.exe -list; then
3198             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3199             if enabled x86_64; then
3200                 LIBTARGET=x64
3201             fi
3202         elif check_cmd $dlltool --version; then
3203             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3204         fi
3205         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3206         SLIB_INSTALL_LINKS=
3207         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3208         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3209         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3210         objformat="win32"
3211         ranlib=:
3212         enable dos_paths
3213         add_cppflags -U__STRICT_ANSI__
3214         ;;
3215     win32|win64)
3216         if enabled shared; then
3217             # Link to the import library instead of the normal static library
3218             # for shared libs.
3219             LD_LIB='%.lib'
3220             # Cannot build shared and static libraries at the same time with
3221             # MSVC.
3222             disable static
3223         fi
3224         shlibdir_default="$bindir_default"
3225         SLIBPREF=""
3226         SLIBSUF=".dll"
3227         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3228         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3229         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3230         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3231         SLIB_INSTALL_LINKS=
3232         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3233         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3234         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3235         objformat="win32"
3236         ranlib=:
3237         enable dos_paths
3238         ;;
3239     cygwin*)
3240         target_os=cygwin
3241         shlibdir_default="$bindir_default"
3242         SLIBPREF="cyg"
3243         SLIBSUF=".dll"
3244         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3245         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3246         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3247         SLIB_INSTALL_LINKS=
3248         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3249         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3250         objformat="win32"
3251         enable dos_paths
3252         ;;
3253     *-dos|freedos|opendos)
3254         network_extralibs="-lsocket"
3255         objformat="coff"
3256         enable dos_paths
3257         add_cppflags -U__STRICT_ANSI__
3258         ;;
3259     linux)
3260         enable dv1394
3261         ;;
3262     irix*)
3263         target_os=irix
3264         ranlib="echo ignoring ranlib"
3265         ;;
3266     os/2*)
3267         strip="lxlite -CS"
3268         ln_s="cp -f"
3269         objformat="aout"
3270         add_cppflags -D_GNU_SOURCE
3271         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3272         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3273         FFSERVERLDFLAGS=""
3274         LIBSUF="_s.a"
3275         SLIBPREF=""
3276         SLIBSUF=".dll"
3277         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3278         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3279         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3280             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3281             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3282             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3283             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3284             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3285         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3286             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3287         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3288         enable dos_paths
3289         enable_weak os2threads
3290         ;;
3291     gnu/kfreebsd)
3292         add_cppflags -D_BSD_SOURCE
3293         ;;
3294     gnu)
3295         ;;
3296     qnx)
3297         add_cppflags -D_QNX_SOURCE
3298         network_extralibs="-lsocket"
3299         ;;
3300     symbian)
3301         SLIBSUF=".dll"
3302         enable dos_paths
3303         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3304         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3305         add_ldflags -Wl,--target1-abs,--no-undefined \
3306                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3307                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3308         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3309                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3310                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3311         ;;
3312     osf1)
3313         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3314         FFSERVERLDFLAGS=
3315         ;;
3316     minix)
3317         ;;
3318     plan9)
3319         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3320                      -D_REENTRANT_SOURCE        \
3321                      -D_RESEARCH_SOURCE         \
3322                      -DFD_SETSIZE=96            \
3323                      -DHAVE_SOCK_OPTS
3324         add_compat strtod.o strtod=avpriv_strtod
3325         network_extralibs='-lbsd'
3326         exeobjs=compat/plan9/main.o
3327         disable ffserver
3328         ln_s='ln -s -f'
3329         cp_f='cp'
3330         ;;
3331     none)
3332         ;;
3333     *)
3334         die "Unknown OS '$target_os'."
3335         ;;
3336 esac
3337
3338 # determine libc flavour
3339
3340 if check_cpp_condition features.h "defined __UCLIBC__"; then
3341     libc_type=uclibc
3342     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3343 elif check_cpp_condition features.h "defined __GLIBC__"; then
3344     libc_type=glibc
3345     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3346 elif check_header _mingw.h; then
3347     libc_type=mingw
3348     check_cpp_condition _mingw.h \
3349         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3350             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3351         die "ERROR: MinGW runtime version must be >= 3.15."
3352     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3353             __MINGW64_VERSION_MAJOR < 3"; then
3354         add_compat msvcrt/snprintf.o
3355         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3356     fi
3357 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3358     libc_type=newlib
3359     add_cppflags -U__STRICT_ANSI__
3360 elif check_func_headers stdlib.h _get_doserrno; then
3361     libc_type=msvcrt
3362     add_compat strtod.o strtod=avpriv_strtod
3363     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3364                                  _snprintf=avpriv_snprintf  \
3365                                  vsnprintf=avpriv_vsnprintf
3366 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3367     libc_type=klibc
3368 fi
3369
3370 test -n "$libc_type" && enable $libc_type
3371
3372 # hacks for compiler/libc/os combinations
3373
3374 if enabled_all tms470 glibc; then
3375     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3376     add_cppflags -D__USER_LABEL_PREFIX__=
3377     add_cppflags -D__builtin_memset=memset
3378     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3379     add_cflags   -pds=48    # incompatible redefinition of macro
3380 fi
3381
3382 if enabled_all ccc glibc; then
3383     add_ldflags -Wl,-z,now  # calls to libots crash without this
3384 fi
3385
3386 esc(){
3387     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3388 }
3389
3390 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3391
3392 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3393
3394 set_default $PATHS_LIST
3395 set_default nm
3396
3397 # we need to build at least one lib type
3398 if ! enabled_any static shared; then
3399     cat <<EOF
3400 At least one library type must be built.
3401 Specify --enable-static to build the static libraries or --enable-shared to
3402 build the shared libraries as well. To only build the shared libraries specify
3403 --disable-static in addition to --enable-shared.
3404 EOF
3405     exit 1;
3406 fi
3407
3408 die_license_disabled() {
3409     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3410 }
3411
3412 die_license_disabled_gpl() {
3413     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3414 }
3415
3416 die_license_disabled gpl libcdio
3417 die_license_disabled gpl libutvideo
3418 die_license_disabled gpl libx264
3419 die_license_disabled gpl libxavs
3420 die_license_disabled gpl libxvid
3421 die_license_disabled gpl x11grab
3422
3423 die_license_disabled nonfree libaacplus
3424 die_license_disabled nonfree libfaac
3425 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3426 enabled gpl && die_license_disabled_gpl nonfree openssl
3427
3428 die_license_disabled version3 libopencore_amrnb
3429 die_license_disabled version3 libopencore_amrwb
3430 die_license_disabled version3 libvo_aacenc
3431 die_license_disabled version3 libvo_amrwbenc
3432
3433 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3434
3435 disabled optimizations || check_cflags -fomit-frame-pointer
3436
3437 enable_pic() {
3438     enable pic
3439     add_cppflags -DPIC
3440     add_cflags   -fPIC
3441     add_asflags  -fPIC
3442 }
3443
3444 enabled pic && enable_pic
3445
3446 check_cc <<EOF || die "Symbol mangling check failed."
3447 int ff_extern;
3448 EOF
3449 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3450 extern_prefix=${sym%%ff_extern*}
3451
3452 check_cc <<EOF && enable_weak inline_asm
3453 void foo(void) { __asm__ volatile ("" ::); }
3454 EOF
3455
3456 _restrict=
3457 for restrict_keyword in restrict __restrict__ __restrict; do
3458     check_cc <<EOF && _restrict=$restrict_keyword && break
3459 void foo(char * $restrict_keyword p);
3460 EOF
3461 done
3462
3463 check_cc <<EOF && enable attribute_packed
3464 struct { int x; } __attribute__((packed)) x;
3465 EOF
3466
3467 check_cc <<EOF && enable attribute_may_alias
3468 union { int x; } __attribute__((may_alias)) x;
3469 EOF
3470
3471 check_cc <<EOF || die "endian test failed"
3472 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3473 EOF
3474 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3475
3476 if enabled alpha; then
3477
3478     check_cflags -mieee
3479
3480 elif enabled arm; then
3481
3482     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3483 float func(float a, float b){ return a+b; }
3484 EOF
3485
3486     enabled thumb && check_cflags -mthumb || check_cflags -marm
3487     nogas=die
3488
3489     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3490         enable vfp_args
3491     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3492         case "${cross_prefix:-$cc}" in
3493             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3494             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3495 __asm__ (".eabi_attribute 28, 1");
3496 int main(void) { return 0; }
3497 EOF
3498         esac
3499         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3500     fi
3501
3502     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3503     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3504     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3505     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3506     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3507     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3508
3509     [ $target_os = linux ] ||
3510         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3511             $ARCH_EXT_LIST_ARM
3512
3513     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3514     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3515
3516     enabled_all armv6t2 shared !pic && enable_pic
3517
3518 elif enabled mips; then
3519
3520     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3521     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3522      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3523     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3524      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3525     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3526      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3527     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3528      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3529
3530 elif enabled parisc; then
3531
3532     if enabled gcc; then
3533         case $($cc -dumpversion) in
3534             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3535         esac
3536     fi
3537
3538 elif enabled ppc; then
3539
3540     enable local_aligned_8 local_aligned_16
3541
3542     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3543     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3544     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3545     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3546
3547     # AltiVec flags: The FSF version of GCC differs from the Apple version
3548     if enabled altivec; then
3549         nogas=warn
3550         check_cflags -maltivec -mabi=altivec &&
3551         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3552         check_cflags -faltivec
3553
3554         # check if our compiler supports Motorola AltiVec C API
3555         check_cc <<EOF || disable altivec
3556 $inc_altivec_h
3557 int main(void) {
3558     vector signed int v1 = (vector signed int) { 0 };
3559     vector signed int v2 = (vector signed int) { 1 };
3560     v1 = vec_add(v1, v2);
3561     return 0;
3562 }
3563 EOF
3564
3565         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3566     fi
3567
3568 elif enabled sparc; then
3569
3570     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3571
3572 elif enabled x86; then
3573
3574     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3575
3576     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3577
3578     enable local_aligned_8 local_aligned_16
3579
3580     # check whether EBP is available on x86
3581     # As 'i' is stored on the stack, this program will crash
3582     # if the base pointer is used to access it because the
3583     # base pointer is cleared in the inline assembly code.
3584     check_exec_crash <<EOF && enable ebp_available
3585 volatile int i=0;
3586 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3587 return i;
3588 EOF
3589
3590     # check whether EBX is available on x86
3591     check_inline_asm ebx_available '""::"b"(0)' &&
3592         check_inline_asm ebx_available '"":::"%ebx"'
3593
3594     # check whether xmm clobbers are supported
3595     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3596
3597     # check whether binutils is new enough to compile SSSE3/MMXEXT
3598     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3599     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3600
3601     if ! disabled_any asm mmx yasm; then
3602         if check_cmd $yasmexe --version; then
3603             enabled x86_64 && yasm_extra="-m amd64"
3604             yasm_debug="-g dwarf2"
3605         elif check_cmd nasm -v; then
3606             yasmexe=nasm
3607             yasm_debug="-g -F dwarf"
3608             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3609         fi
3610
3611         YASMFLAGS="-f $objformat $yasm_extra"
3612         enabled pic               && append YASMFLAGS "-DPIC"
3613         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3614         case "$objformat" in
3615             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3616         esac
3617
3618         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3619             die "yasm not found, use --disable-yasm for a crippled build"
3620         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3621         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3622         check_yasm "CPU amdnop" && enable cpunop
3623     fi
3624
3625     case "$cpu" in
3626         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3627             disable fast_clz
3628         ;;
3629     esac
3630
3631 fi
3632
3633 if enabled asm; then
3634     as=${gas:=$as}
3635     check_as <<EOF && enable gnu_as || \
3636         $nogas "GNU assembler not found, install gas-preprocessor"
3637 .macro m n
3638 \n: .int 0
3639 .endm
3640 m x
3641 EOF
3642 fi
3643
3644 check_ldflags -Wl,--as-needed
3645
3646 if check_func dlopen; then
3647     ldl=
3648 elif check_func dlopen -ldl; then
3649     ldl=-ldl
3650 fi
3651
3652 if ! disabled network; then
3653     check_type "sys/types.h sys/socket.h" socklen_t
3654     check_type netdb.h "struct addrinfo"
3655     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3656     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3657     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3658     check_type netinet/in.h "struct sockaddr_in6"
3659     check_type poll.h "struct pollfd"
3660     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3661     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3662     check_type netinet/sctp.h "struct sctp_event_subscribe"
3663     check_func getaddrinfo $network_extralibs
3664     check_func getservbyport $network_extralibs
3665     # Prefer arpa/inet.h over winsock2
3666     if check_header arpa/inet.h ; then
3667         check_func closesocket
3668     elif check_header winsock2.h ; then
3669         check_func_headers winsock2.h closesocket -lws2 &&
3670             network_extralibs="-lws2" ||
3671         { check_func_headers winsock2.h closesocket -lws2_32 &&
3672             network_extralibs="-lws2_32"; }
3673         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3674         check_type ws2tcpip.h socklen_t
3675         check_type ws2tcpip.h "struct addrinfo"
3676         check_type ws2tcpip.h "struct group_source_req"
3677         check_type ws2tcpip.h "struct ip_mreq_source"
3678         check_type ws2tcpip.h "struct ipv6_mreq"
3679         check_type winsock2.h "struct pollfd"
3680         check_type ws2tcpip.h "struct sockaddr_in6"
3681         check_type ws2tcpip.h "struct sockaddr_storage"
3682         check_struct winsock2.h "struct sockaddr" sa_len
3683     else
3684         disable network
3685     fi
3686 fi
3687
3688 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3689 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3690
3691 check_func  access
3692 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3693 check_func  fcntl
3694 check_func  fork
3695 check_func  gethrtime
3696 check_func  getopt
3697 check_func  getrusage
3698 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3699 check_func  gettimeofday
3700 check_func  inet_aton $network_extralibs
3701 check_func  isatty
3702 check_func  localtime_r
3703 check_func  ${malloc_prefix}memalign            && enable memalign
3704 check_func  mkstemp
3705 check_func  mmap
3706 check_func  mprotect
3707 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3708 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3709 check_func  setrlimit
3710 check_func  strerror_r
3711 check_func  sched_getaffinity
3712 check_func  sysconf
3713 check_func  sysctl
3714 check_func  usleep
3715 check_func_headers conio.h kbhit
3716 check_func_headers windows.h PeekNamedPipe
3717 check_func_headers io.h setmode
3718 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3719 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3720 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3721 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3722 check_func_headers windows.h GetProcessAffinityMask
3723 check_func_headers windows.h GetProcessTimes
3724 check_func_headers windows.h GetSystemTimeAsFileTime
3725 check_func_headers windows.h MapViewOfFile
3726 check_func_headers windows.h SetConsoleTextAttribute
3727 check_func_headers windows.h Sleep
3728 check_func_headers windows.h VirtualAlloc
3729 check_func_headers glob.h glob
3730
3731 check_header direct.h
3732 check_header dlfcn.h
3733 check_header dxva.h
3734 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3735 check_header io.h
3736 check_header libcrystalhd/libcrystalhd_if.h
3737 check_header malloc.h
3738 check_header poll.h
3739 check_header sys/mman.h
3740 check_header sys/param.h
3741 check_header sys/resource.h
3742 check_header sys/select.h
3743 check_header sys/time.h
3744 check_header termios.h
3745 check_header unistd.h
3746 check_header vdpau/vdpau.h
3747 check_header vdpau/vdpau_x11.h
3748 check_header windows.h
3749 check_header X11/extensions/XvMClib.h
3750 check_header asm/types.h
3751
3752 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3753 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3754
3755 # check for VDA header
3756 if ! disabled vda && ! enabled ppc; then
3757     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3758         enable vda
3759         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3760     fi
3761 fi
3762
3763 if ! disabled w32threads && ! enabled pthreads; then
3764     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3765 fi
3766
3767 # check for some common methods of building with pthread support
3768 # do this before the optional library checks as some of them require pthreads
3769 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3770     enable pthreads
3771     if check_func pthread_create; then
3772         :
3773     elif check_func pthread_create -pthread; then
3774         add_cflags -pthread
3775         add_extralibs -pthread
3776     elif check_func pthread_create -pthreads; then
3777         add_cflags -pthreads
3778         add_extralibs -pthreads
3779     elif check_func pthread_create -lpthreadGC2; then
3780         add_extralibs -lpthreadGC2
3781     elif ! check_lib pthread.h pthread_create -lpthread; then
3782         disable pthreads
3783     fi
3784 fi
3785
3786 for thread in $THREADS_LIST; do
3787     if enabled $thread; then
3788         test -n "$thread_type" &&
3789             die "ERROR: Only one thread type must be selected." ||
3790             thread_type="$thread"
3791     fi
3792 done
3793
3794 if enabled pthreads; then
3795   check_func pthread_cancel
3796 fi
3797
3798 check_lib math.h sin -lm && LIBM="-lm"
3799 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3800 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3801
3802 atan2f_args=2
3803 ldexpf_args=2
3804 powf_args=2
3805
3806 for func in $MATH_FUNCS; do
3807     eval check_mathfunc $func \${${func}_args:-1}
3808 done
3809
3810 # these are off by default, so fail if requested and not available
3811 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3812 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3813 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3814 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3815 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3816 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3817 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3818 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3819 enabled libcdio    && require2 libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3820 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3821                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3822                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3823 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3824 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3825 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3826 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"
3827 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3828 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3829 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3830 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3831 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3832 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3833 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3834 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3835 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3836 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3837 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3838                          check_lib openjpeg.h opj_version -lopenjpeg ||
3839                          die "ERROR: libopenjpeg not found"; }
3840 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3841 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3842 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3843 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3844 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3845 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3846 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3847     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3848     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3849 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3850 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3851                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3852                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3853 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3854 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3855 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3856 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3857 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3858 enabled libvpx     && {
3859     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3860                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3861     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3862                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3863 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3864                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3865                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3866 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3867 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3868 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3869                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3870                         die "ERROR: openal not found"; } &&
3871                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3872                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3873 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3874                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3875                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3876                         die "ERROR: openssl not found"; }
3877
3878 if enabled gnutls; then
3879     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3880     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3881 fi
3882
3883 # libdc1394 check
3884 if enabled libdc1394; then
3885     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3886         enable libdc1394_2; } ||
3887     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3888         enable libdc1394_1; } ||
3889     die "ERROR: No version of libdc1394 found "
3890 fi
3891
3892 SDL_CONFIG="${cross_prefix}sdl-config"
3893 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3894     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3895     enable sdl &&
3896     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3897 else
3898   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3899     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3900     sdl_libs=$("${SDL_CONFIG}" --libs)
3901     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3902     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3903     enable sdl &&
3904     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3905   fi
3906 fi
3907 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3908
3909 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3910 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3911 perl --version > /dev/null 2>&1 && enable perl || disable perl
3912 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3913 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3914
3915 check_header linux/fb.h
3916 check_header linux/videodev.h
3917 check_header linux/videodev2.h
3918 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3919
3920 check_header sys/videoio.h
3921
3922 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3923 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3924 # w32api 3.12 had it defined wrong
3925 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3926
3927 check_type "dshow.h" IBaseFilter
3928
3929 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3930 { check_header dev/bktr/ioctl_meteor.h &&
3931   check_header dev/bktr/ioctl_bt848.h; } ||
3932 { check_header machine/ioctl_meteor.h &&
3933   check_header machine/ioctl_bt848.h; } ||
3934 { check_header dev/video/meteor/ioctl_meteor.h &&
3935   check_header dev/video/bktr/ioctl_bt848.h; } ||
3936 check_header dev/ic/bt8xx.h
3937
3938 check_header sndio.h
3939 if check_struct sys/soundcard.h audio_buf_info bytes; then
3940     enable_safe sys/soundcard.h
3941 else
3942     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3943     #include <sys/soundcard.h>
3944     audio_buf_info abc;
3945 EOF
3946 fi
3947 check_header soundcard.h
3948
3949 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3950
3951 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3952     check_func jack_port_get_latency_range -ljack
3953
3954 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3955
3956
3957 enabled x11grab                                           &&
3958 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3959 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3960 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3961
3962 if ! disabled vaapi; then
3963     check_lib va/va.h vaInitialize -lva && {
3964         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3965         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3966     } || disable vaapi
3967 fi
3968
3969 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3970     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3971         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3972 fi
3973
3974 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3975 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3976 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"
3977
3978 # add some useful compiler flags if supported
3979 check_cflags -Wdeclaration-after-statement
3980 check_cflags -Wall
3981 check_cflags -Wno-parentheses
3982 check_cflags -Wno-switch
3983 check_cflags -Wno-format-zero-length
3984 check_cflags -Wdisabled-optimization
3985 check_cflags -Wpointer-arith
3986 check_cflags -Wredundant-decls
3987 check_cflags -Wno-pointer-sign
3988 check_cflags -Wwrite-strings
3989 check_cflags -Wtype-limits
3990 check_cflags -Wundef
3991 check_cflags -Wmissing-prototypes
3992 check_cflags -Wno-pointer-to-int-cast
3993 check_cflags -Wstrict-prototypes
3994 enabled extra_warnings && check_cflags -Winline
3995
3996 # add some linker flags
3997 check_ldflags -Wl,--warn-common
3998 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3999 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4000
4001 enabled xmm_clobber_test &&
4002     check_ldflags -Wl,--wrap,avcodec_open2              \
4003                   -Wl,--wrap,avcodec_decode_audio4      \
4004                   -Wl,--wrap,avcodec_decode_video2      \
4005                   -Wl,--wrap,avcodec_decode_subtitle2   \
4006                   -Wl,--wrap,avcodec_encode_audio2      \
4007                   -Wl,--wrap,avcodec_encode_video       \
4008                   -Wl,--wrap,avcodec_encode_subtitle    \
4009                   -Wl,--wrap,sws_scale ||
4010     disable xmm_clobber_test
4011
4012 echo "X{};" > $TMPV
4013 if test_ldflags -Wl,--version-script,$TMPV; then
4014     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4015     check_cc <<EOF && enable symver_asm_label
4016 void ff_foo(void) __asm__ ("av_foo@VERSION");
4017 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4018 EOF
4019     check_cc <<EOF && enable symver_gnu_asm
4020 __asm__(".symver ff_foo,av_foo@VERSION");
4021 void ff_foo(void) {}
4022 EOF
4023 fi
4024
4025 if [ -z "$optflags" ]; then
4026     if enabled small; then
4027         optflags=$cflags_size
4028     elif enabled optimizations; then
4029         optflags=$cflags_speed
4030     else
4031         optflags=$cflags_noopt
4032     fi
4033 fi
4034
4035 check_optflags(){
4036     check_cflags "$@"
4037     enabled lto && check_ldflags "$@"
4038 }
4039
4040
4041 if enabled lto; then
4042     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4043     check_cflags  -flto
4044     check_ldflags -flto $cpuflags
4045 fi
4046
4047 check_optflags $optflags
4048 check_optflags -fno-math-errno
4049 check_optflags -fno-signed-zeros
4050
4051 enabled ftrapv && check_cflags -ftrapv
4052
4053 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4054 int x;
4055 EOF
4056
4057
4058 if enabled icc; then
4059     # Just warnings, no remarks
4060     check_cflags -w1
4061     # -wd: Disable following warnings
4062     # 144, 167, 556: -Wno-pointer-sign
4063     # 1292: attribute "foo" ignored
4064     # 1419: external declaration in primary source file
4065     # 10006: ignoring unknown option -fno-signed-zeros
4066     # 10148: ignoring unknown option -Wno-parentheses
4067     # 10156: ignoring option '-W'; no argument required
4068     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4069     # 11030: Warning unknown option --as-needed
4070     # 10156: ignoring option '-export'; no argument required
4071     check_ldflags -wd10156,11030
4072     # Allow to compile with optimizations
4073     check_ldflags -march=$cpu
4074     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4075     enable ebp_available
4076     if enabled x86_32; then
4077         icc_version=$($cc -dumpversion)
4078         test ${icc_version%%.*} -ge 11 &&
4079             check_cflags -falign-stack=maintain-16-byte ||
4080             disable aligned_stack
4081     fi
4082 elif enabled ccc; then
4083     # disable some annoying warnings
4084     add_cflags -msg_disable bitnotint
4085     add_cflags -msg_disable mixfuncvoid
4086     add_cflags -msg_disable nonstandcast
4087     add_cflags -msg_disable unsupieee
4088 elif enabled gcc; then
4089     check_optflags -fno-tree-vectorize
4090     check_cflags -Werror=implicit-function-declaration
4091     check_cflags -Werror=missing-prototypes
4092     check_cflags -Werror=vla
4093 elif enabled llvm_gcc; then
4094     check_cflags -mllvm -stack-alignment=16
4095 elif enabled clang; then
4096     check_cflags -mllvm -stack-alignment=16
4097     check_cflags -Qunused-arguments
4098     check_cflags -Werror=implicit-function-declaration
4099     check_cflags -Werror=missing-prototypes
4100 elif enabled armcc; then
4101     # 2523: use of inline assembler is deprecated
4102     add_cflags -W${armcc_opt},--diag_suppress=2523
4103     add_cflags -W${armcc_opt},--diag_suppress=1207
4104     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4105     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4106     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4107     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4108 elif enabled tms470; then
4109     add_cflags -pds=824 -pds=837
4110 elif enabled pathscale; then
4111     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4112 elif enabled msvc; then
4113     enabled x86_32 && disable aligned_stack
4114 fi
4115
4116 case $target_os in
4117     osf1)
4118         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4119     ;;
4120     plan9)
4121         add_cppflags -Dmain=plan9_main
4122     ;;
4123 esac
4124
4125 enabled_any $THREADS_LIST      && enable threads
4126
4127 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4128
4129 check_deps $CONFIG_LIST       \
4130            $CONFIG_EXTRA      \
4131            $HAVE_LIST         \
4132            $ALL_COMPONENTS    \
4133
4134
4135 if test $target_os = "haiku"; then
4136     disable memalign
4137     disable posix_memalign
4138 fi
4139
4140 ! enabled_any memalign posix_memalign aligned_malloc &&
4141     enabled_any $need_memalign && enable memalign_hack
4142
4143 # add_dep lib dep
4144 # -> enable ${lib}_deps_${dep}
4145 # -> add $dep to ${lib}_deps only once
4146 add_dep() {
4147     lib=$1
4148     dep=$2
4149     enabled "${lib}_deps_${dep}" && return 0
4150     enable  "${lib}_deps_${dep}"
4151     prepend "${lib}_deps" $dep
4152 }
4153
4154 # merge deps lib components
4155 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4156 merge_deps() {
4157     lib=$1
4158     shift
4159     for comp in $*; do
4160         enabled $comp || continue
4161         eval "dep=\"\$${comp}_deps\""
4162         for d in $dep; do
4163             add_dep $lib $d
4164         done
4165     done
4166 }
4167
4168 merge_deps libavfilter $FILTER_LIST
4169
4170 echo "install prefix            $prefix"
4171 echo "source path               $source_path"
4172 echo "C compiler                $cc"
4173 echo "ARCH                      $arch ($cpu)"
4174 if test "$build_suffix" != ""; then
4175     echo "build suffix              $build_suffix"
4176 fi
4177 if test "$progs_suffix" != ""; then
4178     echo "progs suffix              $progs_suffix"
4179 fi
4180 if test "$extra_version" != ""; then
4181     echo "version string suffix     $extra_version"
4182 fi
4183 echo "big-endian                ${bigendian-no}"
4184 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4185 if enabled x86; then
4186     echo "${yasmexe}                      ${yasm-no}"
4187     echo "MMX enabled               ${mmx-no}"
4188     echo "MMXEXT enabled            ${mmxext-no}"
4189     echo "3DNow! enabled            ${amd3dnow-no}"
4190     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4191     echo "SSE enabled               ${sse-no}"
4192     echo "SSSE3 enabled             ${ssse3-no}"
4193     echo "AVX enabled               ${avx-no}"
4194     echo "FMA4 enabled              ${fma4-no}"
4195     echo "CMOV enabled              ${cmov-no}"
4196     echo "CMOV is fast              ${fast_cmov-no}"
4197     echo "EBX available             ${ebx_available-no}"
4198     echo "EBP available             ${ebp_available-no}"
4199 fi
4200 if enabled arm; then
4201     echo "ARMv5TE enabled           ${armv5te-no}"
4202     echo "ARMv6 enabled             ${armv6-no}"
4203     echo "ARMv6T2 enabled           ${armv6t2-no}"
4204     echo "VFP enabled               ${vfp-no}"
4205     echo "NEON enabled              ${neon-no}"
4206     echo "THUMB enabled             ${thumb-no}"
4207 fi
4208 if enabled mips; then
4209     echo "MIPS FPU enabled          ${mipsfpu-no}"
4210     echo "MIPS32R2 enabled          ${mips32r2-no}"
4211     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4212     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4213 fi
4214 if enabled ppc; then
4215     echo "AltiVec enabled           ${altivec-no}"
4216     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4217     echo "dcbzl available           ${dcbzl-no}"
4218 fi
4219 if enabled sparc; then
4220     echo "VIS enabled               ${vis-no}"
4221 fi
4222 echo "debug symbols             ${debug-no}"
4223 echo "strip symbols             ${stripping-no}"
4224 echo "optimize for size         ${small-no}"
4225 echo "optimizations             ${optimizations-no}"
4226 echo "static                    ${static-no}"
4227 echo "shared                    ${shared-no}"
4228 echo "postprocessing support    ${postproc-no}"
4229 echo "new filter support        ${avfilter-no}"
4230 echo "network support           ${network-no}"
4231 echo "threading support         ${thread_type-no}"
4232 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4233 echo "SDL support               ${sdl-no}"
4234 echo "libdxva2 enabled          ${dxva2-no}"
4235 echo "libva enabled             ${vaapi-no}"
4236 echo "libvdpau enabled          ${vdpau-no}"
4237 echo "AVISynth enabled          ${avisynth-no}"
4238 echo "frei0r enabled            ${frei0r-no}"
4239 echo "gnutls enabled            ${gnutls-no}"
4240 echo "libaacplus enabled        ${libaacplus-no}"
4241 echo "libass enabled            ${libass-no}"
4242 echo "libcaca enabled           ${libcaca-no}"
4243 echo "libcdio support           ${libcdio-no}"
4244 echo "libcelt enabled           ${libcelt-no}"
4245 echo "libdc1394 support         ${libdc1394-no}"
4246 echo "libfaac enabled           ${libfaac-no}"
4247 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4248 echo "libgsm enabled            ${libgsm-no}"
4249 echo "libiec61883 support       ${libiec61883-no}"
4250 echo "libilbc enabled           ${libilbc-no}"
4251 echo "libmodplug enabled        ${libmodplug-no}"
4252 echo "libmp3lame enabled        ${libmp3lame-no}"
4253 echo "libnut enabled            ${libnut-no}"
4254 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4255 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4256 echo "libopencv support         ${libopencv-no}"
4257 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4258 echo "libopus enabled           ${libopus-no}"
4259 echo "libpulse enabled          ${libpulse-no}"
4260 echo "librtmp enabled           ${librtmp-no}"
4261 echo "libschroedinger enabled   ${libschroedinger-no}"
4262 echo "libsoxr enabled           ${libsoxr-no}"
4263 echo "libspeex enabled          ${libspeex-no}"
4264 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4265 echo "libtheora enabled         ${libtheora-no}"
4266 echo "libtwolame enabled        ${libtwolame-no}"
4267 echo "libutvideo enabled        ${libutvideo-no}"
4268 echo "libv4l2 enabled           ${libv4l2-no}"
4269 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4270 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4271 echo "libvorbis enabled         ${libvorbis-no}"
4272 echo "libvpx enabled            ${libvpx-no}"
4273 echo "libx264 enabled           ${libx264-no}"
4274 echo "libxavs enabled           ${libxavs-no}"
4275 echo "libxvid enabled           ${libxvid-no}"
4276 echo "openal enabled            ${openal-no}"
4277 echo "openssl enabled           ${openssl-no}"
4278 echo "zlib enabled              ${zlib-no}"
4279 echo "bzlib enabled             ${bzlib-no}"
4280 echo "texi2html enabled         ${texi2html-no}"
4281 echo "perl enabled              ${perl-no}"
4282 echo "pod2man enabled           ${pod2man-no}"
4283 echo "makeinfo enabled          ${makeinfo-no}"
4284 test -n "$random_seed" &&
4285     echo "random seed               ${random_seed}"
4286 echo
4287
4288 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4289     echo "Enabled ${type}s:"
4290     eval list=\$$(toupper $type)_LIST
4291     print_enabled '_*' $list | sort | pr -r -3 -t
4292     echo
4293 done
4294
4295 license="LGPL version 2.1 or later"
4296 if enabled nonfree; then
4297     license="nonfree and unredistributable"
4298 elif enabled gplv3; then
4299     license="GPL version 3 or later"
4300 elif enabled lgplv3; then
4301     license="LGPL version 3 or later"
4302 elif enabled gpl; then
4303     license="GPL version 2 or later"
4304 fi
4305
4306 echo "License: $license"
4307
4308 echo "Creating config.mak and config.h..."
4309
4310 test -e Makefile || $ln_s "$source_path/Makefile" .
4311
4312 enabled stripping || strip="echo skipping strip"
4313
4314 config_files="$TMPH config.mak"
4315
4316 cat > config.mak <<EOF
4317 # Automatically generated by configure - do not modify!
4318 ifndef FFMPEG_CONFIG_MAK
4319 FFMPEG_CONFIG_MAK=1
4320 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4321 prefix=$prefix
4322 LIBDIR=\$(DESTDIR)$libdir
4323 SHLIBDIR=\$(DESTDIR)$shlibdir
4324 INCDIR=\$(DESTDIR)$incdir
4325 BINDIR=\$(DESTDIR)$bindir
4326 DATADIR=\$(DESTDIR)$datadir
4327 MANDIR=\$(DESTDIR)$mandir
4328 SRC_PATH=$source_path
4329 ifndef MAIN_MAKEFILE
4330 SRC_PATH:=\$(SRC_PATH:.%=..%)
4331 endif
4332 CC_IDENT=$cc_ident
4333 ARCH=$arch
4334 CC=$cc
4335 CXX=$cxx
4336 AS=$as
4337 LD=$ld
4338 DEPCC=$dep_cc
4339 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4340 DEPAS=$as
4341 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4342 YASM=$yasmexe
4343 DEPYASM=$yasmexe
4344 AR=$ar
4345 ARFLAGS=$arflags
4346 AR_O=$ar_o
4347 RANLIB=$ranlib
4348 CP=cp -p
4349 LN_S=$ln_s
4350 STRIP=$strip
4351 CPPFLAGS=$CPPFLAGS
4352 CFLAGS=$CFLAGS
4353 CXXFLAGS=$CXXFLAGS
4354 ASFLAGS=$ASFLAGS
4355 AS_C=$AS_C
4356 AS_O=$AS_O
4357 CC_C=$CC_C
4358 CC_E=$CC_E
4359 CC_O=$CC_O
4360 CXX_C=$CXX_C
4361 CXX_O=$CXX_O
4362 LD_O=$LD_O
4363 LD_LIB=$LD_LIB
4364 LD_PATH=$LD_PATH
4365 DLLTOOL=$dlltool
4366 LDFLAGS=$LDFLAGS
4367 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4368 SHFLAGS=$SHFLAGS
4369 YASMFLAGS=$YASMFLAGS
4370 BUILDSUF=$build_suffix
4371 PROGSSUF=$progs_suffix
4372 FULLNAME=$FULLNAME
4373 LIBPREF=$LIBPREF
4374 LIBSUF=$LIBSUF
4375 LIBNAME=$LIBNAME
4376 SLIBPREF=$SLIBPREF
4377 SLIBSUF=$SLIBSUF
4378 EXESUF=$EXESUF
4379 EXTRA_VERSION=$extra_version
4380 CCDEP=$CCDEP
4381 CXXDEP=$CXXDEP
4382 CCDEP_FLAGS=$CCDEP_FLAGS
4383 ASDEP=$ASDEP
4384 ASDEP_FLAGS=$ASDEP_FLAGS
4385 CC_DEPFLAGS=$CC_DEPFLAGS
4386 AS_DEPFLAGS=$AS_DEPFLAGS
4387 HOSTCC=$host_cc
4388 HOSTLD=$host_ld
4389 HOSTCFLAGS=$host_cflags
4390 HOSTEXESUF=$HOSTEXESUF
4391 HOSTLDFLAGS=$host_ldflags
4392 HOSTLIBS=$host_libs
4393 DEPHOSTCC=$host_cc
4394 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4395 HOSTCCDEP=$HOSTCCDEP
4396 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4397 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4398 HOSTCC_C=$HOSTCC_C
4399 HOSTCC_O=$HOSTCC_O
4400 HOSTLD_O=$HOSTLD_O
4401 TARGET_EXEC=$target_exec
4402 TARGET_PATH=$target_path
4403 LIBS-ffplay=$sdl_libs
4404 CFLAGS-ffplay=$sdl_cflags
4405 ZLIB=$($ldflags_filter -lz)
4406 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4407 EXTRALIBS=$extralibs
4408 COMPAT_OBJS=$compat_objs
4409 EXEOBJS=$exeobjs
4410 INSTALL=$install
4411 LIBTARGET=${LIBTARGET}
4412 SLIBNAME=${SLIBNAME}
4413 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4414 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4415 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4416 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4417 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4418 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4419 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4420 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4421 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4422 NOREDZONE_FLAGS=$noredzone_flags
4423 EOF
4424
4425 get_version(){
4426     lcname=lib${1}
4427     name=$(toupper $lcname)
4428     file=$source_path/$lcname/version.h
4429     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4430     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4431     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4432     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4433 }
4434
4435 map 'get_version $v' $LIBRARY_LIST
4436
4437 cat > $TMPH <<EOF
4438 /* Automatically generated by configure - do not modify! */
4439 #ifndef FFMPEG_CONFIG_H
4440 #define FFMPEG_CONFIG_H
4441 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4442 #define FFMPEG_LICENSE "$(c_escape $license)"
4443 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4444 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4445 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4446 #define av_restrict $_restrict
4447 #define EXTERN_PREFIX "${extern_prefix}"
4448 #define EXTERN_ASM ${extern_prefix}
4449 #define SLIBSUF "$SLIBSUF"
4450 #define HAVE_MMX2 HAVE_MMXEXT
4451 EOF
4452
4453 test -n "$assert_level" &&
4454     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4455
4456 test -n "$malloc_prefix" &&
4457     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4458
4459 if enabled yasm; then
4460     append config_files $TMPASM
4461     printf '' >$TMPASM
4462 fi
4463
4464 print_config ARCH_   "$config_files" $ARCH_LIST
4465 print_config HAVE_   "$config_files" $HAVE_LIST
4466 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4467                                      $CONFIG_EXTRA      \
4468                                      $ALL_COMPONENTS    \
4469
4470 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4471 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4472
4473 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4474 cp_if_changed $TMPH config.h
4475 touch .config
4476
4477 enabled yasm && cp_if_changed $TMPASM config.asm
4478
4479 cat > $TMPH <<EOF
4480 /* Generated by ffconf */
4481 #ifndef AVUTIL_AVCONFIG_H
4482 #define AVUTIL_AVCONFIG_H
4483 EOF
4484
4485 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4486
4487 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4488
4489 cp_if_changed $TMPH libavutil/avconfig.h
4490
4491 if test -n "$WARNINGS"; then
4492     printf "\n$WARNINGS"
4493     enabled fatal_warnings && exit 1
4494 fi
4495
4496 # build pkg-config files
4497
4498 pkgconfig_generate(){
4499     name=$1
4500     shortname=${name#lib}${build_suffix}
4501     comment=$2
4502     version=$3
4503     libs=$4
4504     requires=$5
4505     enabled ${name#lib} || return 0
4506     mkdir -p $name
4507     cat <<EOF > $name/$name.pc
4508 prefix=$prefix
4509 exec_prefix=\${prefix}
4510 libdir=$libdir
4511 includedir=$incdir
4512
4513 Name: $name
4514 Description: $comment
4515 Version: $version
4516 Requires: $(enabled shared || echo $requires)
4517 Requires.private: $(enabled shared && echo $requires)
4518 Conflicts:
4519 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4520 Libs.private: $(enabled shared && echo $libs)
4521 Cflags: -I\${includedir}
4522 EOF
4523
4524 mkdir -p doc/examples/pc-uninstalled
4525 includedir=${source_path}
4526 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4527     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4528 prefix=
4529 exec_prefix=
4530 libdir=\${pcfiledir}/../../../$name
4531 includedir=${includedir}
4532
4533 Name: $name
4534 Description: $comment
4535 Version: $version
4536 Requires: $requires
4537 Conflicts:
4538 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4539 Cflags: -I\${includedir}
4540 EOF
4541 }
4542
4543 libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
4544 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4545 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4546 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
4547 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4548 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4549 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4550 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4551
4552 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4553 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4554
4555 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4556 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4557 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4558 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4559 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4560 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4561 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4562 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4563 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4564
4565 fix_ffmpeg_remote(){
4566     git_remote_from=$1
4567     git_remote_to=$2
4568     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4569     if [ "$fixme_remote" != "" ]; then
4570         echolog "
4571 Outdated domain in git config, the official domain for ffmpeg git is since
4572 November 2011, source.ffmpeg.org, both the old and the new point to the same
4573 repository and server. To update it enter the following commands:
4574 "
4575         for remote in $fixme_remote; do
4576             echolog "git remote set-url $remote $git_remote_to"
4577         done
4578     fi
4579 }
4580
4581 if test -f "$source_path/.git/config"; then
4582     remote_from=git.videolan.org
4583     remote_to=source.ffmpeg.org
4584     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4585     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4586 fi