mpegpsenc: Fix SCR handling for DVD
[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='$ldl'
1987 geq_filter_deps="gpl"
1988 hqdn3d_filter_deps="gpl"
1989 hue_filter_deps="gpl"
1990 movie_filter_deps="avcodec avformat"
1991 mp_filter_deps="gpl avcodec swscale inline_asm"
1992 mptestsrc_filter_deps="gpl"
1993 negate_filter_deps="lut_filter"
1994 resample_filter_deps="avresample"
1995 ocv_filter_deps="libopencv"
1996 pan_filter_deps="swresample"
1997 pp_filter_deps="gpl postproc"
1998 removelogo_filter_deps="avcodec avformat swscale"
1999 scale_filter_deps="swscale"
2000 smartblur_filter_deps="gpl swscale"
2001 showspectrum_filter_deps="avcodec rdft"
2002 subtitles_filter_deps="avformat avcodec libass"
2003 super2xsai_filter_deps="gpl"
2004 tinterlace_filter_deps="gpl"
2005 yadif_filter_deps="gpl"
2006 pixfmts_super2xsai_test_deps="super2xsai_filter"
2007 tinterlace_merge_test_deps="tinterlace_filter"
2008 tinterlace_pad_test_deps="tinterlace_filter"
2009
2010 # libraries
2011 avcodec_deps="avutil"
2012 avdevice_deps="avutil avcodec avformat"
2013 avfilter_deps="avutil"
2014 avformat_deps="avutil avcodec"
2015 avresample_deps="avutil"
2016 postproc_deps="avutil gpl"
2017 swscale_deps="avutil"
2018
2019 # programs
2020 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2021 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2022                setpts_filter null_filter anull_filter ffabuffersink_filter"
2023 ffplay_deps="avcodec avformat swscale swresample sdl"
2024 ffplay_select="ffbuffersink_filter rdft crop_filter"
2025 ffprobe_deps="avcodec avformat"
2026 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2027 ffserver_extralibs='$ldl'
2028
2029 # documentation
2030 podpages_deps="perl"
2031 manpages_deps="perl pod2man"
2032 htmlpages_deps="texi2html"
2033 txtpages_deps="makeinfo"
2034 doc_deps_any="manpages htmlpages podpages txtpages"
2035
2036 # default parameters
2037
2038 logfile="config.log"
2039
2040 # installation paths
2041 prefix_default="/usr/local"
2042 bindir_default='${prefix}/bin'
2043 datadir_default='${prefix}/share/ffmpeg'
2044 incdir_default='${prefix}/include'
2045 libdir_default='${prefix}/lib'
2046 mandir_default='${prefix}/share/man'
2047 shlibdir_default="$libdir_default"
2048
2049 # toolchain
2050 ar_default="ar"
2051 cc_default="gcc"
2052 cxx_default="g++"
2053 host_cc_default="gcc"
2054 cp_f="cp -f"
2055 install="install"
2056 ln_s="ln -sf"
2057 nm_default="nm -g"
2058 objformat="elf"
2059 pkg_config_default=pkg-config
2060 ranlib="ranlib"
2061 strip_default="strip"
2062 yasmexe_default="yasm"
2063
2064 nogas=":"
2065
2066 # machine
2067 arch_default=$(uname -m)
2068 cpu="generic"
2069
2070 # OS
2071 target_os_default=$(tolower $(uname -s))
2072 host_os=$target_os_default
2073
2074 # configurable options
2075 enable $PROGRAM_LIST
2076 enable $DOCUMENT_LIST
2077 enable $(filter_out avresample $LIBRARY_LIST)
2078 enable stripping
2079
2080 enable asm
2081 enable debug
2082 enable doc
2083 enable optimizations
2084 enable runtime_cpudetect
2085 enable safe_bitstream_reader
2086 enable static
2087 enable swscale_alpha
2088
2089 # build settings
2090 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2091 FFSERVERLDFLAGS=-Wl,-E
2092 LIBPREF="lib"
2093 LIBSUF=".a"
2094 FULLNAME='$(NAME)$(BUILDSUF)'
2095 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2096 SLIBPREF="lib"
2097 SLIBSUF=".so"
2098 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2099 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2100 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2101 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2102 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2103 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2104
2105 asflags_filter=echo
2106 cflags_filter=echo
2107 ldflags_filter=echo
2108
2109 AS_C='-c'
2110 AS_O='-o $@'
2111 CC_C='-c'
2112 CC_E='-E -o $@'
2113 CC_O='-o $@'
2114 CXX_C='-c'
2115 CXX_O='-o $@'
2116 LD_O='-o $@'
2117 LD_LIB='-l%'
2118 LD_PATH='-L'
2119 HOSTCC_C='-c'
2120 HOSTCC_O='-o $@'
2121 HOSTLD_O='-o $@'
2122
2123 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2124 host_libs='-lm'
2125 host_cflags_filter=echo
2126 host_ldflags_filter=echo
2127
2128 target_path='$(CURDIR)'
2129
2130 # since the object filename is not given with the -MM flag, the compiler
2131 # is only able to print the basename, and we must add the path ourselves
2132 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2133 DEPFLAGS='-MM'
2134
2135 # find source path
2136 if test -f configure; then
2137     source_path=.
2138 else
2139     source_path=$(cd $(dirname "$0"); pwd)
2140     echo "$source_path" | grep -q '[[:blank:]]' &&
2141         die "Out of tree builds are impossible with whitespace in source path."
2142     test -e "$source_path/config.h" &&
2143         die "Out of tree builds are impossible with config.h in source dir."
2144 fi
2145
2146 for v in "$@"; do
2147     r=${v#*=}
2148     l=${v%"$r"}
2149     r=$(sh_quote "$r")
2150     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2151 done
2152
2153 find_things(){
2154     thing=$1
2155     pattern=$2
2156     file=$source_path/$3
2157     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2158 }
2159
2160 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2161 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2162 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2163 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2164 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2165 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2166 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2167 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2168 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2169 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2170 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2171
2172 ALL_COMPONENTS="
2173     $BSF_LIST
2174     $DECODER_LIST
2175     $DEMUXER_LIST
2176     $ENCODER_LIST
2177     $FILTER_LIST
2178     $HWACCEL_LIST
2179     $INDEV_LIST
2180     $MUXER_LIST
2181     $OUTDEV_LIST
2182     $PARSER_LIST
2183     $PROTOCOL_LIST
2184 "
2185
2186 for n in $COMPONENT_LIST; do
2187     v=$(toupper ${n%s})_LIST
2188     eval enable \$$v
2189     eval ${n}_if_any="\$$v"
2190 done
2191
2192 enable $ARCH_EXT_LIST
2193
2194 die_unknown(){
2195     echo "Unknown option \"$1\"."
2196     echo "See $0 --help for available options."
2197     exit 1
2198 }
2199
2200 show_list() {
2201     suffix=_$1
2202     shift
2203     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2204     exit 0
2205 }
2206
2207 rand_list(){
2208     IFS=', '
2209     set -- $*
2210     unset IFS
2211     for thing; do
2212         comp=${thing%:*}
2213         prob=${thing#$comp}
2214         prob=${prob#:}
2215         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2216         echo "prob ${prob:-0.5}"
2217         printf '%s\n' $comp
2218     done
2219 }
2220
2221 do_random(){
2222     action=$1
2223     shift
2224     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2225     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2226 }
2227
2228 for opt do
2229     optval="${opt#*=}"
2230     case "$opt" in
2231         --extra-ldflags=*)
2232             add_ldflags $optval
2233         ;;
2234         --extra-libs=*)
2235             add_extralibs $optval
2236         ;;
2237         --disable-devices)
2238             disable $INDEV_LIST $OUTDEV_LIST
2239         ;;
2240         --enable-debug=*)
2241             debuglevel="$optval"
2242         ;;
2243         --disable-programs)
2244             disable $PROGRAM_LIST
2245         ;;
2246         --disable-everything)
2247             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2248         ;;
2249         --disable-all)
2250             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2251             disable $LIBRARY_LIST $PROGRAM_LIST doc
2252         ;;
2253         --enable-random|--disable-random)
2254             action=${opt%%-random}
2255             do_random ${action#--} $COMPONENT_LIST
2256         ;;
2257         --enable-random=*|--disable-random=*)
2258             action=${opt%%-random=*}
2259             do_random ${action#--} $optval
2260         ;;
2261         --enable-*=*|--disable-*=*)
2262             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2263             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2264             eval list=\$$(toupper $thing)_LIST
2265             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2266             list=$(filter "$name" $list)
2267             [ "$list" = "" ] && warn "Option $opt did not match anything"
2268             $action $list
2269         ;;
2270         --enable-?*|--disable-?*)
2271             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2272             if is_in $option $COMPONENT_LIST; then
2273                 test $action = disable && action=unset
2274                 eval $action \$$(toupper ${option%s})_LIST
2275             elif is_in $option $CMDLINE_SELECT; then
2276                 $action $option
2277             else
2278                 die_unknown $opt
2279             fi
2280         ;;
2281         --list-*)
2282             NAME="${opt#--list-}"
2283             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2284             NAME=${NAME%s}
2285             eval show_list $NAME \$$(toupper $NAME)_LIST
2286         ;;
2287         --help|-h) show_help
2288         ;;
2289         --fatal-warnings) enable fatal_warnings
2290         ;;
2291         *)
2292             optname="${opt%%=*}"
2293             optname="${optname#--}"
2294             optname=$(echo "$optname" | sed 's/-/_/g')
2295             if is_in $optname $CMDLINE_SET; then
2296                 eval $optname='$optval'
2297             elif is_in $optname $CMDLINE_APPEND; then
2298                 append $optname "$optval"
2299             else
2300                 die_unknown $opt
2301             fi
2302         ;;
2303     esac
2304 done
2305
2306 disabled logging && logfile=/dev/null
2307
2308 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2309 set >> $logfile
2310
2311 test -n "$cross_prefix" && enable cross_compile
2312
2313 if enabled cross_compile; then
2314     test -n "$arch" && test -n "$target_os" ||
2315         die "Must specify target arch and OS when cross-compiling"
2316 fi
2317
2318 ar_default="${cross_prefix}${ar_default}"
2319 cc_default="${cross_prefix}${cc_default}"
2320 cxx_default="${cross_prefix}${cxx_default}"
2321 nm_default="${cross_prefix}${nm_default}"
2322 pkg_config_default="${cross_prefix}${pkg_config_default}"
2323 ranlib="${cross_prefix}${ranlib}"
2324 strip_default="${cross_prefix}${strip_default}"
2325
2326 sysinclude_default="${sysroot}/usr/include"
2327
2328 case "$toolchain" in
2329     clang-asan)
2330         cc_default="clang"
2331         add_cflags  -faddress-sanitizer
2332         add_ldflags -faddress-sanitizer
2333     ;;
2334     clang-tsan)
2335         cc_default="clang"
2336         add_cflags  -fthread-sanitizer
2337         add_ldflags -fthread-sanitizer
2338     ;;
2339     msvc)
2340         cc_default="c99wrap cl"
2341         ld_default="c99wrap link"
2342         nm_default="dumpbin -symbols"
2343         ar_default="lib"
2344         target_os_default="win32"
2345     ;;
2346     ?*)
2347         die "Unknown toolchain $toolchain"
2348     ;;
2349 esac
2350
2351 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2352 enabled cross_compile || host_cc_default=$cc
2353 set_default host_cc
2354
2355 if ! $pkg_config --version >/dev/null 2>&1; then
2356     warn "$pkg_config not found, library detection may fail."
2357     pkg_config=false
2358 fi
2359
2360 exesuf() {
2361     case $1 in
2362         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2363     esac
2364 }
2365
2366 EXESUF=$(exesuf $target_os)
2367 HOSTEXESUF=$(exesuf $host_os)
2368
2369 # set temporary file name
2370 : ${TMPDIR:=$TEMPDIR}
2371 : ${TMPDIR:=$TMP}
2372 : ${TMPDIR:=/tmp}
2373
2374 if ! check_cmd mktemp -u XXXXXX; then
2375     # simple replacement for missing mktemp
2376     # NOT SAFE FOR GENERAL USE
2377     mktemp(){
2378         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2379     }
2380 fi
2381
2382 tmpfile(){
2383     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2384         (set -C; exec > $tmp) 2>/dev/null ||
2385         die "Unable to create temporary file in $TMPDIR."
2386     append TMPFILES $tmp
2387     eval $1=$tmp
2388 }
2389
2390 trap 'rm -f -- $TMPFILES' EXIT
2391
2392 tmpfile TMPASM .asm
2393 tmpfile TMPC   .c
2394 tmpfile TMPCPP .cpp
2395 tmpfile TMPE   $EXESUF
2396 tmpfile TMPH   .h
2397 tmpfile TMPO   .o
2398 tmpfile TMPS   .S
2399 tmpfile TMPSH  .sh
2400 tmpfile TMPV   .ver
2401
2402 unset -f mktemp
2403
2404 chmod +x $TMPE
2405
2406 # make sure we can execute files in $TMPDIR
2407 cat > $TMPSH 2>> $logfile <<EOF
2408 #! /bin/sh
2409 EOF
2410 chmod +x $TMPSH >> $logfile 2>&1
2411 if ! $TMPSH >> $logfile 2>&1; then
2412     cat <<EOF
2413 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2414 variable to another directory and make sure that it is not mounted noexec.
2415 EOF
2416     die "Sanity test failed."
2417 fi
2418
2419 ccc_flags(){
2420     for flag; do
2421         case $flag in
2422             -std=c99)           echo -c99                       ;;
2423             -mcpu=*)            echo -arch ${flag#*=}           ;;
2424             -mieee)             echo -ieee                      ;;
2425             -O*|-fast)          echo $flag                      ;;
2426             -fno-math-errno)    echo -assume nomath_errno       ;;
2427             -g)                 echo -g3                        ;;
2428             -Wall)              echo -msg_enable level2         ;;
2429             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2430             -Wl,*)              echo $flag                      ;;
2431             -f*|-W*)                                            ;;
2432             *)                  echo $flag                      ;;
2433         esac
2434    done
2435 }
2436
2437 msvc_flags(){
2438     for flag; do
2439         case $flag in
2440             -fomit-frame-pointer) echo -Oy ;;
2441             -g)                   echo -Z7 ;;
2442             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2443                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2444                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2445                                        -wd4554 \
2446                                        -wd4996 -wd4273 ;;
2447             -std=c99)             ;;
2448             -fno-math-errno)      ;;
2449             -fno-common)          ;;
2450             -fno-signed-zeros)    ;;
2451             -fPIC)                ;;
2452             -lz)                  echo zlib.lib ;;
2453             -lavifil32)           echo vfw32.lib ;;
2454             -lavicap32)           echo vfw32.lib user32.lib ;;
2455             -l*)                  echo ${flag#-l}.lib ;;
2456             *)                    echo $flag ;;
2457         esac
2458     done
2459 }
2460
2461 pgi_flags(){
2462     for flag; do
2463         case $flag in
2464             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2465             -fomit-frame-pointer) echo -Mnoframe ;;
2466             -g)                   echo -gopt ;;
2467             *)                    echo $flag ;;
2468         esac
2469     done
2470 }
2471
2472 suncc_flags(){
2473     for flag; do
2474         case $flag in
2475             -march=*|-mcpu=*)
2476                 case "${flag#*=}" in
2477                     native)                   echo -xtarget=native       ;;
2478                     v9|niagara)               echo -xarch=sparc          ;;
2479                     ultrasparc)               echo -xarch=sparcvis       ;;
2480                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2481                     i586|pentium)             echo -xchip=pentium        ;;
2482                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2483                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2484                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2485                     pentium4*)          echo -xtarget=pentium4           ;;
2486                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2487                     *-sse3)             echo -xarch=sse3                 ;;
2488                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2489                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2490                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2491                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2492                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2493                     k8|opteron|athlon64|athlon-fx)
2494                                               echo -xarch=sse2a          ;;
2495                     athlon*)                  echo -xarch=pentium_proa   ;;
2496                 esac
2497                 ;;
2498             -std=c99)             echo -xc99              ;;
2499             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2500             -fPIC)                echo -KPIC -xcode=pic32 ;;
2501             -W*,*)                echo $flag              ;;
2502             -f*-*|-W*)                                    ;;
2503             *)                    echo $flag              ;;
2504         esac
2505     done
2506 }
2507
2508 tms470_flags(){
2509     for flag; do
2510         case $flag in
2511             -march=*|-mcpu=*)
2512                 case "${flag#*=}" in
2513                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2514                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2515                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2516                     armv6*|arm11*)          echo -mv=6   ;;
2517                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2518                                             echo -mv=5e  ;;
2519                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2520                 esac
2521                 ;;
2522             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2523             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2524             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2525             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2526             -msoft-float)   echo --float_support=vfplib       ;;
2527             -O[0-3]|-mf=*)  echo $flag                        ;;
2528             -g)             echo -g -mn                       ;;
2529             -pds=*)         echo $flag                        ;;
2530             -D*|-I*)        echo $flag                        ;;
2531             --gcc|--abi=*)  echo $flag                        ;;
2532             -me)            echo $flag                        ;;
2533         esac
2534     done
2535 }
2536
2537 probe_cc(){
2538     pfx=$1
2539     _cc=$2
2540
2541     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2542     unset _ld_o _ldflags _ld_lib _ld_path
2543     unset _depflags _DEPCMD _DEPFLAGS
2544     _flags_filter=echo
2545
2546     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2547         _type=llvm_gcc
2548         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2549         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2550         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2551         _cflags_speed='-O3'
2552         _cflags_size='-Os'
2553     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2554         _type=gcc
2555         gcc_version=$($_cc --version | head -n1)
2556         gcc_basever=$($_cc -dumpversion)
2557         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2558         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2559         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2560         if ! $_cc -dumpversion | grep -q '^2\.'; then
2561             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2562         fi
2563         _cflags_speed='-O3'
2564         _cflags_size='-Os'
2565     elif $_cc --version 2>/dev/null | grep -q Intel; then
2566         _type=icc
2567         _ident=$($_cc --version | head -n1)
2568         _depflags='-MMD'
2569         _cflags_speed='-O3'
2570         _cflags_size='-Os'
2571         _cflags_noopt='-O1'
2572     elif $_cc -v 2>&1 | grep -q xlc; then
2573         _type=xlc
2574         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2575         _cflags_speed='-O5'
2576         _cflags_size='-O5 -qcompact'
2577     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2578         _type=ccc
2579         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2580         _DEPFLAGS='-M'
2581         _cflags_speed='-fast'
2582         _cflags_size='-O1'
2583         _flags_filter=ccc_flags
2584     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2585         test -d "$sysroot" || die "No valid sysroot specified."
2586         _type=armcc
2587         _ident=$($_cc --vsn | head -n1)
2588         armcc_conf="$PWD/armcc.conf"
2589         $_cc --arm_linux_configure                 \
2590              --arm_linux_config_file="$armcc_conf" \
2591              --configure_sysroot="$sysroot"        \
2592              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2593              die "Error creating armcc configuration file."
2594         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2595         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2596         as_default="${cross_prefix}gcc"
2597         _depflags='-MMD'
2598         _cflags_speed='-O3'
2599         _cflags_size='-Os'
2600     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2601         _type=tms470
2602         _ident=$($_cc -version | head -n1 | tr -s ' ')
2603         _flags='--gcc --abi=eabi -me'
2604         _cc_e='-ppl -fe=$@'
2605         _cc_o='-fe=$@'
2606         _depflags='-ppa -ppd=$(@:.o=.d)'
2607         _cflags_speed='-O3 -mf=5'
2608         _cflags_size='-O3 -mf=2'
2609         _flags_filter=tms470_flags
2610     elif $_cc -v 2>&1 | grep -q clang; then
2611         _type=clang
2612         _ident=$($_cc --version | head -n1)
2613         _depflags='-MMD'
2614         _cflags_speed='-O3'
2615         _cflags_size='-Os'
2616     elif $_cc -V 2>&1 | grep -q Sun; then
2617         _type=suncc
2618         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2619         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2620         _DEPFLAGS='-xM1 -xc99'
2621         _ldflags='-std=c99'
2622         _cflags_speed='-O5'
2623         _cflags_size='-O5 -xspace'
2624         _flags_filter=suncc_flags
2625     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2626         _type=pathscale
2627         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2628         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2629         _cflags_speed='-O2'
2630         _cflags_size='-Os'
2631         _flags_filter='filter_out -Wdisabled-optimization'
2632     elif $_cc -v 2>&1 | grep -q Open64; then
2633         _type=open64
2634         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2635         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2636         _cflags_speed='-O2'
2637         _cflags_size='-Os'
2638         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2639     elif $_cc -V 2>&1 | grep -q Portland; then
2640         _type=pgi
2641         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2642         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2643         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2644         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2645         _cflags_noopt="-O1"
2646         _flags_filter=pgi_flags
2647     elif $_cc 2>&1 | grep -q Microsoft; then
2648         _type=msvc
2649         _ident=$($cc 2>&1 | head -n1)
2650         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2651         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2652         _cflags_speed="-O2"
2653         _cflags_size="-O1"
2654         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2655         if $_cc 2>&1 | grep -q Linker; then
2656             _ld_o='-out $@'
2657         else
2658             _ld_o='-Fe$@'
2659         fi
2660         _cc_o='-Fo $@'
2661         _cc_e='-P -Fi $@'
2662         _flags_filter=msvc_flags
2663         _ld_lib='lib%.a'
2664         _ld_path='-libpath:'
2665         _flags='-nologo'
2666         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2667         if [ $pfx = hostcc ]; then
2668             append _cflags -Dsnprintf=_snprintf
2669         fi
2670         disable stripping
2671     fi
2672
2673     eval ${pfx}_type=\$_type
2674     eval ${pfx}_ident=\$_ident
2675 }
2676
2677 set_ccvars(){
2678     eval ${1}_C=\${_cc_c-\${${1}_C}}
2679     eval ${1}_E=\${_cc_e-\${${1}_E}}
2680     eval ${1}_O=\${_cc_o-\${${1}_O}}
2681
2682     if [ -n "$_depflags" ]; then
2683         eval ${1}_DEPFLAGS=\$_depflags
2684     else
2685         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2686         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2687         eval DEP${1}FLAGS=\$_flags
2688     fi
2689 }
2690
2691 probe_cc cc "$cc"
2692 cflags_filter=$_flags_filter
2693 cflags_speed=$_cflags_speed
2694 cflags_size=$_cflags_size
2695 cflags_noopt=$_cflags_noopt
2696 add_cflags $_flags $_cflags
2697 cc_ldflags=$_ldflags
2698 set_ccvars CC
2699
2700 probe_cc hostcc "$host_cc"
2701 host_cflags_filter=$_flags_filter
2702 add_host_cflags  $_flags $_cflags
2703 set_ccvars HOSTCC
2704
2705 test -n "$cc_type" && enable $cc_type ||
2706     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2707
2708 : ${as_default:=$cc}
2709 : ${dep_cc_default:=$cc}
2710 : ${ld_default:=$cc}
2711 : ${host_ld_default:=$host_cc}
2712 set_default ar as dep_cc ld host_ld
2713
2714 probe_cc as "$as"
2715 asflags_filter=$_flags_filter
2716 add_asflags $_flags $_cflags
2717 set_ccvars AS
2718
2719 probe_cc ld "$ld"
2720 ldflags_filter=$_flags_filter
2721 add_ldflags $_flags $_ldflags
2722 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2723 LD_O=${_ld_o-$LD_O}
2724 LD_LIB=${_ld_lib-$LD_LIB}
2725 LD_PATH=${_ld_path-$LD_PATH}
2726
2727 probe_cc hostld "$host_ld"
2728 host_ldflags_filter=$_flags_filter
2729 add_host_ldflags $_flags $_ldflags
2730 HOSTLD_O=${_ld_o-$HOSTLD_O}
2731
2732 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2733     probe_cc depcc "$dep_cc"
2734     CCDEP=${_DEPCMD:-$DEPCMD}
2735     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2736     DEPCCFLAGS=$_flags
2737 fi
2738
2739 if $ar 2>&1 | grep -q Microsoft; then
2740     arflags="-nologo"
2741     ar_o='-out:$@'
2742 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2743     arflags="rq"
2744     ar_o='$@'
2745 else
2746     arflags="rc"
2747     ar_o='$@'
2748 fi
2749
2750 add_cflags $extra_cflags
2751 add_cxxflags $extra_cxxflags
2752 add_asflags $extra_cflags
2753
2754 if test -n "$sysroot"; then
2755     case "$cc_type" in
2756         gcc|llvm_gcc|clang)
2757             add_cppflags --sysroot="$sysroot"
2758             add_ldflags --sysroot="$sysroot"
2759         ;;
2760         tms470)
2761             add_cppflags -I"$sysinclude"
2762             add_ldflags  --sysroot="$sysroot"
2763         ;;
2764     esac
2765 fi
2766
2767 if test "$cpu" = host; then
2768     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2769
2770     case "$cc_type" in
2771         gcc|llvm_gcc)
2772             check_native(){
2773                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2774                 sed -n "/cc1.*$1=/{
2775                             s/.*$1=\\([^ ]*\\).*/\\1/
2776                             p
2777                             q
2778                         }" $TMPE
2779             }
2780             cpu=$(check_native -march || check_native -mcpu)
2781         ;;
2782     esac
2783
2784     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2785 fi
2786
2787 # Deal with common $arch aliases
2788 case "$arch" in
2789     aarch64|arm64)
2790         arch="aarch64"
2791     ;;
2792     arm*|iPad*)
2793         arch="arm"
2794     ;;
2795     mips*|IP*)
2796         arch="mips"
2797     ;;
2798     parisc*|hppa*)
2799         arch="parisc"
2800     ;;
2801     "Power Macintosh"|ppc*|powerpc*)
2802         arch="ppc"
2803     ;;
2804     s390|s390x)
2805         arch="s390"
2806     ;;
2807     sh4|sh)
2808         arch="sh4"
2809     ;;
2810     sun4u|sparc*)
2811         arch="sparc"
2812     ;;
2813     tilegx|tile-gx)
2814         arch="tilegx"
2815     ;;
2816     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2817         arch="x86"
2818     ;;
2819 esac
2820
2821 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2822 enable $arch
2823
2824 # Add processor-specific flags
2825 if enabled aarch64; then
2826
2827     case $cpu in
2828         armv*)
2829             cpuflags="-march=$cpu"
2830         ;;
2831         *)
2832             cpuflags="-mcpu=$cpu"
2833         ;;
2834     esac
2835
2836 elif enabled alpha; then
2837
2838     cpuflags="-mcpu=$cpu"
2839
2840 elif enabled arm; then
2841
2842     check_arm_arch() {
2843         check_cpp_condition stddef.h \
2844             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2845             $cpuflags
2846     }
2847
2848     probe_arm_arch() {
2849         if   check_arm_arch 4;        then echo armv4;
2850         elif check_arm_arch 4T;       then echo armv4t;
2851         elif check_arm_arch 5;        then echo armv5;
2852         elif check_arm_arch 5E;       then echo armv5e;
2853         elif check_arm_arch 5T;       then echo armv5t;
2854         elif check_arm_arch 5TE;      then echo armv5te;
2855         elif check_arm_arch 5TEJ;     then echo armv5te;
2856         elif check_arm_arch 6;        then echo armv6;
2857         elif check_arm_arch 6J;       then echo armv6j;
2858         elif check_arm_arch 6K;       then echo armv6k;
2859         elif check_arm_arch 6Z;       then echo armv6z;
2860         elif check_arm_arch 6ZK;      then echo armv6zk;
2861         elif check_arm_arch 6T2;      then echo armv6t2;
2862         elif check_arm_arch 7;        then echo armv7;
2863         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2864         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2865         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2866         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2867         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2868         fi
2869     }
2870
2871     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2872
2873     case $cpu in
2874         armv*)
2875             cpuflags="-march=$cpu"
2876             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2877         ;;
2878         *)
2879             cpuflags="-mcpu=$cpu"
2880             case $cpu in
2881                 cortex-a*)                               subarch=armv7a  ;;
2882                 cortex-r*)                               subarch=armv7r  ;;
2883                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2884                 arm11*)                                  subarch=armv6   ;;
2885                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2886                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2887                 *)                             subarch=$(probe_arm_arch) ;;
2888             esac
2889         ;;
2890     esac
2891
2892     case "$subarch" in
2893         armv5t*)    enable fast_clz                ;;
2894         armv[6-8]*) enable fast_clz fast_unaligned ;;
2895     esac
2896
2897 elif enabled avr32; then
2898
2899     case $cpu in
2900         ap7[02]0[0-2])
2901             subarch="avr32_ap"
2902             cpuflags="-mpart=$cpu"
2903         ;;
2904         ap)
2905             subarch="avr32_ap"
2906             cpuflags="-march=$cpu"
2907         ;;
2908         uc3[ab]*)
2909             subarch="avr32_uc"
2910             cpuflags="-mcpu=$cpu"
2911         ;;
2912         uc)
2913             subarch="avr32_uc"
2914             cpuflags="-march=$cpu"
2915         ;;
2916     esac
2917
2918 elif enabled bfin; then
2919
2920     cpuflags="-mcpu=$cpu"
2921
2922 elif enabled mips; then
2923
2924     cpuflags="-march=$cpu"
2925
2926     case $cpu in
2927         24kc)
2928             disable mipsfpu
2929             disable mipsdspr1
2930             disable mipsdspr2
2931         ;;
2932         24kf*)
2933             disable mipsdspr1
2934             disable mipsdspr2
2935         ;;
2936         24kec|34kc|1004kc)
2937             disable mipsfpu
2938             disable mipsdspr2
2939         ;;
2940         24kef*|34kf*|1004kf*)
2941             disable mipsdspr2
2942         ;;
2943         74kc)
2944             disable mipsfpu
2945         ;;
2946     esac
2947
2948 elif enabled ppc; then
2949
2950     case $(tolower $cpu) in
2951         601|ppc601|powerpc601)
2952             cpuflags="-mcpu=601"
2953             disable altivec
2954         ;;
2955         603*|ppc603*|powerpc603*)
2956             cpuflags="-mcpu=603"
2957             disable altivec
2958         ;;
2959         604*|ppc604*|powerpc604*)
2960             cpuflags="-mcpu=604"
2961             disable altivec
2962         ;;
2963         g3|75*|ppc75*|powerpc75*)
2964             cpuflags="-mcpu=750"
2965             disable altivec
2966         ;;
2967         g4|745*|ppc745*|powerpc745*)
2968             cpuflags="-mcpu=7450"
2969         ;;
2970         74*|ppc74*|powerpc74*)
2971             cpuflags="-mcpu=7400"
2972         ;;
2973         g5|970|ppc970|powerpc970)
2974             cpuflags="-mcpu=970"
2975         ;;
2976         power[3-7]*)
2977             cpuflags="-mcpu=$cpu"
2978         ;;
2979         cell)
2980             cpuflags="-mcpu=cell"
2981             enable ldbrx
2982         ;;
2983         e500mc)
2984             cpuflags="-mcpu=e500mc"
2985             disable altivec
2986         ;;
2987         e500v2)
2988             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2989             disable altivec
2990         ;;
2991         e500)
2992             cpuflags="-mcpu=8540 -mhard-float"
2993             disable altivec
2994         ;;
2995     esac
2996
2997 elif enabled sparc; then
2998
2999     case $cpu in
3000         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3001             cpuflags="-mcpu=$cpu"
3002             disable vis
3003         ;;
3004         ultrasparc*|niagara[234])
3005             cpuflags="-mcpu=$cpu"
3006         ;;
3007     esac
3008
3009 elif enabled x86; then
3010
3011     case $cpu in
3012         i[345]86|pentium)
3013             cpuflags="-march=$cpu"
3014             disable mmx
3015         ;;
3016         # targets that do NOT support conditional mov (cmov)
3017         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3018             cpuflags="-march=$cpu"
3019             disable cmov
3020         ;;
3021         # targets that do support conditional mov (cmov)
3022         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3023             cpuflags="-march=$cpu"
3024             enable cmov
3025             enable fast_cmov
3026         ;;
3027         # targets that do support conditional mov but on which it's slow
3028         pentium4|pentium4m|prescott|nocona)
3029             cpuflags="-march=$cpu"
3030             enable cmov
3031             disable fast_cmov
3032         ;;
3033     esac
3034
3035 fi
3036
3037 if [ "$cpu" != generic ]; then
3038     add_cflags  $cpuflags
3039     add_asflags $cpuflags
3040 fi
3041
3042 # compiler sanity check
3043 check_exec <<EOF
3044 int main(void){ return 0; }
3045 EOF
3046 if test "$?" != 0; then
3047     echo "$cc is unable to create an executable file."
3048     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3049         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3050         echo "Only do this if you know what cross compiling means."
3051     fi
3052     die "C compiler test failed."
3053 fi
3054
3055 add_cppflags -D_ISOC99_SOURCE
3056 add_cxxflags -D__STDC_CONSTANT_MACROS
3057 check_cflags -std=c99
3058 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3059 #include <stdlib.h>
3060 EOF
3061 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3062 #include <stdlib.h>
3063 EOF
3064
3065 check_host_cflags -std=c99
3066 check_host_cflags -Wall
3067
3068 check_64bit(){
3069     arch32=$1
3070     arch64=$2
3071     expr=$3
3072     check_code cc "" "int test[2*($expr) - 1]" &&
3073         subarch=$arch64 || subarch=$arch32
3074 }
3075
3076 case "$arch" in
3077     alpha|ia64)
3078         spic=$shared
3079     ;;
3080     mips)
3081         check_64bit mips mips64 '_MIPS_SIM > 1'
3082         spic=$shared
3083     ;;
3084     parisc)
3085         check_64bit parisc parisc64 'sizeof(void *) > 4'
3086         spic=$shared
3087     ;;
3088     ppc)
3089         check_64bit ppc ppc64 'sizeof(void *) > 4'
3090         spic=$shared
3091     ;;
3092     sparc)
3093         check_64bit sparc sparc64 'sizeof(void *) > 4'
3094         spic=$shared
3095     ;;
3096     x86)
3097         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3098         if test "$subarch" = "x86_64"; then
3099             spic=$shared
3100         fi
3101     ;;
3102     ppc)
3103         check_cc <<EOF && subarch="ppc64"
3104         int test[(int)sizeof(char*) - 7];
3105 EOF
3106     ;;
3107 esac
3108
3109 enable $subarch
3110 enabled spic && enable pic
3111
3112 # OS specific
3113 case $target_os in
3114     haiku)
3115         prefix_default="/boot/common"
3116         network_extralibs="-lnetwork"
3117         host_libs=
3118         ;;
3119     sunos)
3120         FFSERVERLDFLAGS=""
3121         SHFLAGS='-shared -Wl,-h,$$(@F)'
3122         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3123         network_extralibs="-lsocket -lnsl"
3124         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3125         # When using suncc to build, the Solaris linker will mark
3126         # an executable with each instruction set encountered by
3127         # the Solaris assembler.  As our libraries contain their own
3128         # guards for processor-specific code, instead suppress
3129         # generation of the HWCAPS ELF section on Solaris x86 only.
3130         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3131         nm_default='nm -P -g'
3132         ;;
3133     netbsd)
3134         disable symver
3135         oss_indev_extralibs="-lossaudio"
3136         oss_outdev_extralibs="-lossaudio"
3137         enabled gcc || check_ldflags -Wl,-zmuldefs
3138         ;;
3139     openbsd|bitrig)
3140         # On OpenBSD 4.5. the compiler does not use PIC unless
3141         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3142         # however the generated executable will not do anything
3143         # (simply quits with exit-code 1, no crash, no output).
3144         # Thus explicitly enable PIC here.
3145         enable pic
3146         disable symver
3147         SHFLAGS='-shared'
3148         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3149         SLIB_INSTALL_LINKS=
3150         oss_indev_extralibs="-lossaudio"
3151         oss_outdev_extralibs="-lossaudio"
3152         ;;
3153     dragonfly)
3154         disable symver
3155         ;;
3156     freebsd)
3157         ;;
3158     bsd/os)
3159         add_extralibs -lpoll -lgnugetopt
3160         strip="strip -d"
3161         ;;
3162     darwin)
3163         gas="gas-preprocessor.pl $cc"
3164         enabled ppc && add_asflags -force_cpusubtype_ALL
3165         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3166         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3167         strip="${strip} -x"
3168         add_ldflags -Wl,-dynamic,-search_paths_first
3169         SLIBSUF=".dylib"
3170         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3171         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3172         FFSERVERLDFLAGS=-Wl,-bind_at_load
3173         objformat="macho"
3174         enabled x86_64 && objformat="macho64"
3175         enabled_any pic shared ||
3176             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3177         ;;
3178     mingw32*)
3179         if test $target_os = "mingw32ce"; then
3180             disable network
3181         else
3182             target_os=mingw32
3183         fi
3184         LIBTARGET=i386
3185         if enabled x86_64; then
3186             LIBTARGET="i386:x86-64"
3187         elif enabled arm; then
3188             LIBTARGET=arm-wince
3189         fi
3190         shlibdir_default="$bindir_default"
3191         SLIBPREF=""
3192         SLIBSUF=".dll"
3193         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3194         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3195         dlltool="${cross_prefix}dlltool"
3196         if check_cmd lib.exe -list; then
3197             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3198             if enabled x86_64; then
3199                 LIBTARGET=x64
3200             fi
3201         elif check_cmd $dlltool --version; then
3202             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3203         fi
3204         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3205         SLIB_INSTALL_LINKS=
3206         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3207         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3208         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3209         objformat="win32"
3210         ranlib=:
3211         enable dos_paths
3212         add_cppflags -U__STRICT_ANSI__
3213         ;;
3214     win32|win64)
3215         if enabled shared; then
3216             # Link to the import library instead of the normal static library
3217             # for shared libs.
3218             LD_LIB='%.lib'
3219             # Cannot build shared and static libraries at the same time with
3220             # MSVC.
3221             disable static
3222         fi
3223         shlibdir_default="$bindir_default"
3224         SLIBPREF=""
3225         SLIBSUF=".dll"
3226         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3227         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3228         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3229         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3230         SLIB_INSTALL_LINKS=
3231         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3232         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3233         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3234         objformat="win32"
3235         ranlib=:
3236         enable dos_paths
3237         ;;
3238     cygwin*)
3239         target_os=cygwin
3240         shlibdir_default="$bindir_default"
3241         SLIBPREF="cyg"
3242         SLIBSUF=".dll"
3243         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3244         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3245         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3246         SLIB_INSTALL_LINKS=
3247         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3248         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3249         objformat="win32"
3250         enable dos_paths
3251         ;;
3252     *-dos|freedos|opendos)
3253         network_extralibs="-lsocket"
3254         objformat="coff"
3255         enable dos_paths
3256         add_cppflags -U__STRICT_ANSI__
3257         ;;
3258     linux)
3259         enable dv1394
3260         ;;
3261     irix*)
3262         target_os=irix
3263         ranlib="echo ignoring ranlib"
3264         ;;
3265     os/2*)
3266         strip="lxlite -CS"
3267         ln_s="cp -f"
3268         objformat="aout"
3269         add_cppflags -D_GNU_SOURCE
3270         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3271         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3272         FFSERVERLDFLAGS=""
3273         LIBSUF="_s.a"
3274         SLIBPREF=""
3275         SLIBSUF=".dll"
3276         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3277         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3278         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3279             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3280             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3281             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3282             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3283             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3284         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3285             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3286         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3287         enable dos_paths
3288         enable_weak os2threads
3289         ;;
3290     gnu/kfreebsd)
3291         add_cppflags -D_BSD_SOURCE
3292         ;;
3293     gnu)
3294         ;;
3295     qnx)
3296         add_cppflags -D_QNX_SOURCE
3297         network_extralibs="-lsocket"
3298         ;;
3299     symbian)
3300         SLIBSUF=".dll"
3301         enable dos_paths
3302         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3303         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3304         add_ldflags -Wl,--target1-abs,--no-undefined \
3305                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3306                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3307         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3308                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3309                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3310         ;;
3311     osf1)
3312         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3313         FFSERVERLDFLAGS=
3314         ;;
3315     minix)
3316         ;;
3317     plan9)
3318         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3319                      -D_REENTRANT_SOURCE        \
3320                      -D_RESEARCH_SOURCE         \
3321                      -DFD_SETSIZE=96            \
3322                      -DHAVE_SOCK_OPTS
3323         add_compat strtod.o strtod=avpriv_strtod
3324         network_extralibs='-lbsd'
3325         exeobjs=compat/plan9/main.o
3326         disable ffserver
3327         ln_s='ln -s -f'
3328         cp_f='cp'
3329         ;;
3330     none)
3331         ;;
3332     *)
3333         die "Unknown OS '$target_os'."
3334         ;;
3335 esac
3336
3337 # determine libc flavour
3338
3339 if check_cpp_condition features.h "defined __UCLIBC__"; then
3340     libc_type=uclibc
3341     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3342 elif check_cpp_condition features.h "defined __GLIBC__"; then
3343     libc_type=glibc
3344     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3345 elif check_header _mingw.h; then
3346     libc_type=mingw
3347     check_cpp_condition _mingw.h \
3348         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3349             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3350         die "ERROR: MinGW runtime version must be >= 3.15."
3351     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3352             __MINGW64_VERSION_MAJOR < 3"; then
3353         add_compat msvcrt/snprintf.o
3354         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3355     fi
3356 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3357     libc_type=newlib
3358     add_cppflags -U__STRICT_ANSI__
3359 elif check_func_headers stdlib.h _get_doserrno; then
3360     libc_type=msvcrt
3361     add_compat strtod.o strtod=avpriv_strtod
3362     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3363                                  _snprintf=avpriv_snprintf  \
3364                                  vsnprintf=avpriv_vsnprintf
3365 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3366     libc_type=klibc
3367 fi
3368
3369 test -n "$libc_type" && enable $libc_type
3370
3371 # hacks for compiler/libc/os combinations
3372
3373 if enabled_all tms470 glibc; then
3374     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3375     add_cppflags -D__USER_LABEL_PREFIX__=
3376     add_cppflags -D__builtin_memset=memset
3377     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3378     add_cflags   -pds=48    # incompatible redefinition of macro
3379 fi
3380
3381 if enabled_all ccc glibc; then
3382     add_ldflags -Wl,-z,now  # calls to libots crash without this
3383 fi
3384
3385 esc(){
3386     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3387 }
3388
3389 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3390
3391 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3392
3393 set_default $PATHS_LIST
3394 set_default nm
3395
3396 # we need to build at least one lib type
3397 if ! enabled_any static shared; then
3398     cat <<EOF
3399 At least one library type must be built.
3400 Specify --enable-static to build the static libraries or --enable-shared to
3401 build the shared libraries as well. To only build the shared libraries specify
3402 --disable-static in addition to --enable-shared.
3403 EOF
3404     exit 1;
3405 fi
3406
3407 die_license_disabled() {
3408     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3409 }
3410
3411 die_license_disabled_gpl() {
3412     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3413 }
3414
3415 die_license_disabled gpl libcdio
3416 die_license_disabled gpl libutvideo
3417 die_license_disabled gpl libx264
3418 die_license_disabled gpl libxavs
3419 die_license_disabled gpl libxvid
3420 die_license_disabled gpl x11grab
3421
3422 die_license_disabled nonfree libaacplus
3423 die_license_disabled nonfree libfaac
3424 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3425 enabled gpl && die_license_disabled_gpl nonfree openssl
3426
3427 die_license_disabled version3 libopencore_amrnb
3428 die_license_disabled version3 libopencore_amrwb
3429 die_license_disabled version3 libvo_aacenc
3430 die_license_disabled version3 libvo_amrwbenc
3431
3432 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3433
3434 disabled optimizations || check_cflags -fomit-frame-pointer
3435
3436 enable_pic() {
3437     enable pic
3438     add_cppflags -DPIC
3439     add_cflags   -fPIC
3440     add_asflags  -fPIC
3441 }
3442
3443 enabled pic && enable_pic
3444
3445 check_cc <<EOF || die "Symbol mangling check failed."
3446 int ff_extern;
3447 EOF
3448 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3449 extern_prefix=${sym%%ff_extern*}
3450
3451 check_cc <<EOF && enable_weak inline_asm
3452 void foo(void) { __asm__ volatile ("" ::); }
3453 EOF
3454
3455 _restrict=
3456 for restrict_keyword in restrict __restrict__ __restrict; do
3457     check_cc <<EOF && _restrict=$restrict_keyword && break
3458 void foo(char * $restrict_keyword p);
3459 EOF
3460 done
3461
3462 check_cc <<EOF && enable attribute_packed
3463 struct { int x; } __attribute__((packed)) x;
3464 EOF
3465
3466 check_cc <<EOF && enable attribute_may_alias
3467 union { int x; } __attribute__((may_alias)) x;
3468 EOF
3469
3470 check_cc <<EOF || die "endian test failed"
3471 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3472 EOF
3473 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3474
3475 if enabled alpha; then
3476
3477     check_cflags -mieee
3478
3479 elif enabled arm; then
3480
3481     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3482 float func(float a, float b){ return a+b; }
3483 EOF
3484
3485     enabled thumb && check_cflags -mthumb || check_cflags -marm
3486     nogas=die
3487
3488     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3489         enable vfp_args
3490     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3491         case "${cross_prefix:-$cc}" in
3492             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3493             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3494 __asm__ (".eabi_attribute 28, 1");
3495 int main(void) { return 0; }
3496 EOF
3497         esac
3498         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3499     fi
3500
3501     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3502     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3503     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3504     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3505     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3506     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3507
3508     [ $target_os = linux ] ||
3509         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3510             $ARCH_EXT_LIST_ARM
3511
3512     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3513     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3514
3515     enabled_all armv6t2 shared !pic && enable_pic
3516
3517 elif enabled mips; then
3518
3519     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3520     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3521      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3522     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3523      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3524     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3525      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3526     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3527      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3528
3529 elif enabled parisc; then
3530
3531     if enabled gcc; then
3532         case $($cc -dumpversion) in
3533             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3534         esac
3535     fi
3536
3537 elif enabled ppc; then
3538
3539     enable local_aligned_8 local_aligned_16
3540
3541     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3542     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3543     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3544     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3545
3546     # AltiVec flags: The FSF version of GCC differs from the Apple version
3547     if enabled altivec; then
3548         nogas=warn
3549         check_cflags -maltivec -mabi=altivec &&
3550         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3551         check_cflags -faltivec
3552
3553         # check if our compiler supports Motorola AltiVec C API
3554         check_cc <<EOF || disable altivec
3555 $inc_altivec_h
3556 int main(void) {
3557     vector signed int v1 = (vector signed int) { 0 };
3558     vector signed int v2 = (vector signed int) { 1 };
3559     v1 = vec_add(v1, v2);
3560     return 0;
3561 }
3562 EOF
3563
3564         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3565     fi
3566
3567 elif enabled sparc; then
3568
3569     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3570
3571 elif enabled x86; then
3572
3573     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3574
3575     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3576
3577     enable local_aligned_8 local_aligned_16
3578
3579     # check whether EBP is available on x86
3580     # As 'i' is stored on the stack, this program will crash
3581     # if the base pointer is used to access it because the
3582     # base pointer is cleared in the inline assembly code.
3583     check_exec_crash <<EOF && enable ebp_available
3584 volatile int i=0;
3585 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3586 return i;
3587 EOF
3588
3589     # check whether EBX is available on x86
3590     check_inline_asm ebx_available '""::"b"(0)' &&
3591         check_inline_asm ebx_available '"":::"%ebx"'
3592
3593     # check whether xmm clobbers are supported
3594     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3595
3596     # check whether binutils is new enough to compile SSSE3/MMXEXT
3597     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3598     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3599
3600     if ! disabled_any asm mmx yasm; then
3601         if check_cmd $yasmexe --version; then
3602             enabled x86_64 && yasm_extra="-m amd64"
3603             yasm_debug="-g dwarf2"
3604         elif check_cmd nasm -v; then
3605             yasmexe=nasm
3606             yasm_debug="-g -F dwarf"
3607             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3608         fi
3609
3610         YASMFLAGS="-f $objformat $yasm_extra"
3611         enabled pic               && append YASMFLAGS "-DPIC"
3612         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3613         case "$objformat" in
3614             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3615         esac
3616
3617         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3618             die "yasm not found, use --disable-yasm for a crippled build"
3619         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3620         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3621         check_yasm "CPU amdnop" && enable cpunop
3622     fi
3623
3624     case "$cpu" in
3625         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3626             disable fast_clz
3627         ;;
3628     esac
3629
3630 fi
3631
3632 if enabled asm; then
3633     as=${gas:=$as}
3634     check_as <<EOF && enable gnu_as || \
3635         $nogas "GNU assembler not found, install gas-preprocessor"
3636 .macro m n
3637 \n: .int 0
3638 .endm
3639 m x
3640 EOF
3641 fi
3642
3643 check_ldflags -Wl,--as-needed
3644
3645 if check_func dlopen; then
3646     ldl=
3647 elif check_func dlopen -ldl; then
3648     ldl=-ldl
3649 fi
3650
3651 if ! disabled network; then
3652     check_type "sys/types.h sys/socket.h" socklen_t
3653     check_type netdb.h "struct addrinfo"
3654     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3655     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3656     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3657     check_type netinet/in.h "struct sockaddr_in6"
3658     check_type poll.h "struct pollfd"
3659     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3660     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3661     check_type netinet/sctp.h "struct sctp_event_subscribe"
3662     check_func getaddrinfo $network_extralibs
3663     check_func getservbyport $network_extralibs
3664     # Prefer arpa/inet.h over winsock2
3665     if check_header arpa/inet.h ; then
3666         check_func closesocket
3667     elif check_header winsock2.h ; then
3668         check_func_headers winsock2.h closesocket -lws2 &&
3669             network_extralibs="-lws2" ||
3670         { check_func_headers winsock2.h closesocket -lws2_32 &&
3671             network_extralibs="-lws2_32"; }
3672         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3673         check_type ws2tcpip.h socklen_t
3674         check_type ws2tcpip.h "struct addrinfo"
3675         check_type ws2tcpip.h "struct group_source_req"
3676         check_type ws2tcpip.h "struct ip_mreq_source"
3677         check_type ws2tcpip.h "struct ipv6_mreq"
3678         check_type winsock2.h "struct pollfd"
3679         check_type ws2tcpip.h "struct sockaddr_in6"
3680         check_type ws2tcpip.h "struct sockaddr_storage"
3681         check_struct winsock2.h "struct sockaddr" sa_len
3682     else
3683         disable network
3684     fi
3685 fi
3686
3687 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3688 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3689
3690 check_func  access
3691 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3692 check_func  fcntl
3693 check_func  fork
3694 check_func  gethrtime
3695 check_func  getopt
3696 check_func  getrusage
3697 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3698 check_func  gettimeofday
3699 check_func  inet_aton $network_extralibs
3700 check_func  isatty
3701 check_func  localtime_r
3702 check_func  ${malloc_prefix}memalign            && enable memalign
3703 check_func  mkstemp
3704 check_func  mmap
3705 check_func  mprotect
3706 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3707 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3708 check_func  setrlimit
3709 check_func  strerror_r
3710 check_func  sched_getaffinity
3711 check_func  sysconf
3712 check_func  sysctl
3713 check_func  usleep
3714 check_func_headers conio.h kbhit
3715 check_func_headers windows.h PeekNamedPipe
3716 check_func_headers io.h setmode
3717 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3718 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3719 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3720 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3721 check_func_headers windows.h GetProcessAffinityMask
3722 check_func_headers windows.h GetProcessTimes
3723 check_func_headers windows.h GetSystemTimeAsFileTime
3724 check_func_headers windows.h MapViewOfFile
3725 check_func_headers windows.h SetConsoleTextAttribute
3726 check_func_headers windows.h Sleep
3727 check_func_headers windows.h VirtualAlloc
3728 check_func_headers glob.h glob
3729
3730 check_header direct.h
3731 check_header dlfcn.h
3732 check_header dxva.h
3733 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3734 check_header io.h
3735 check_header libcrystalhd/libcrystalhd_if.h
3736 check_header malloc.h
3737 check_header poll.h
3738 check_header sys/mman.h
3739 check_header sys/param.h
3740 check_header sys/resource.h
3741 check_header sys/select.h
3742 check_header sys/time.h
3743 check_header termios.h
3744 check_header unistd.h
3745 check_header vdpau/vdpau.h
3746 check_header vdpau/vdpau_x11.h
3747 check_header windows.h
3748 check_header X11/extensions/XvMClib.h
3749 check_header asm/types.h
3750
3751 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3752 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3753
3754 # check for VDA header
3755 if ! disabled vda && ! enabled ppc; then
3756     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3757         enable vda
3758         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3759     fi
3760 fi
3761
3762 if ! disabled w32threads && ! enabled pthreads; then
3763     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3764 fi
3765
3766 # check for some common methods of building with pthread support
3767 # do this before the optional library checks as some of them require pthreads
3768 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3769     enable pthreads
3770     if check_func pthread_create; then
3771         :
3772     elif check_func pthread_create -pthread; then
3773         add_cflags -pthread
3774         add_extralibs -pthread
3775     elif check_func pthread_create -pthreads; then
3776         add_cflags -pthreads
3777         add_extralibs -pthreads
3778     elif check_func pthread_create -lpthreadGC2; then
3779         add_extralibs -lpthreadGC2
3780     elif ! check_lib pthread.h pthread_create -lpthread; then
3781         disable pthreads
3782     fi
3783 fi
3784
3785 for thread in $THREADS_LIST; do
3786     if enabled $thread; then
3787         test -n "$thread_type" &&
3788             die "ERROR: Only one thread type must be selected." ||
3789             thread_type="$thread"
3790     fi
3791 done
3792
3793 if enabled pthreads; then
3794   check_func pthread_cancel
3795 fi
3796
3797 check_lib math.h sin -lm && LIBM="-lm"
3798 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3799 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3800
3801 atan2f_args=2
3802 ldexpf_args=2
3803 powf_args=2
3804
3805 for func in $MATH_FUNCS; do
3806     eval check_mathfunc $func \${${func}_args:-1}
3807 done
3808
3809 # these are off by default, so fail if requested and not available
3810 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3811 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3812 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3813 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3814 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3815 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3816 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3817 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3818 enabled libcdio    && require2 libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3819 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3820                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3821                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3822 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3823 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3824 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3825 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"
3826 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3827 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3828 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3829 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3830 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3831 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3832 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3833 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3834 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3835 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3836 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3837                          check_lib openjpeg.h opj_version -lopenjpeg ||
3838                          die "ERROR: libopenjpeg not found"; }
3839 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3840 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3841 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3842 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3843 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3844 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3845 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3846     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3847     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3848 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3849 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3850                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3851                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3852 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3853 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3854 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3855 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3856 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3857 enabled libvpx     && {
3858     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3859                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3860     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3861                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3862 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3863                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3864                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3865 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3866 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3867 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3868                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3869                         die "ERROR: openal not found"; } &&
3870                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3871                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3872 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3873                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3874                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3875                         die "ERROR: openssl not found"; }
3876
3877 if enabled gnutls; then
3878     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3879     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3880 fi
3881
3882 # libdc1394 check
3883 if enabled libdc1394; then
3884     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3885         enable libdc1394_2; } ||
3886     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3887         enable libdc1394_1; } ||
3888     die "ERROR: No version of libdc1394 found "
3889 fi
3890
3891 SDL_CONFIG="${cross_prefix}sdl-config"
3892 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3893     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3894     enable sdl &&
3895     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3896 else
3897   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3898     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3899     sdl_libs=$("${SDL_CONFIG}" --libs)
3900     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3901     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3902     enable sdl &&
3903     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3904   fi
3905 fi
3906 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3907
3908 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3909 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3910 perl --version > /dev/null 2>&1 && enable perl || disable perl
3911 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3912 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3913
3914 check_header linux/fb.h
3915 check_header linux/videodev.h
3916 check_header linux/videodev2.h
3917 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3918
3919 check_header sys/videoio.h
3920
3921 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3922 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3923 # w32api 3.12 had it defined wrong
3924 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3925
3926 check_type "dshow.h" IBaseFilter
3927
3928 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3929 { check_header dev/bktr/ioctl_meteor.h &&
3930   check_header dev/bktr/ioctl_bt848.h; } ||
3931 { check_header machine/ioctl_meteor.h &&
3932   check_header machine/ioctl_bt848.h; } ||
3933 { check_header dev/video/meteor/ioctl_meteor.h &&
3934   check_header dev/video/bktr/ioctl_bt848.h; } ||
3935 check_header dev/ic/bt8xx.h
3936
3937 check_header sndio.h
3938 if check_struct sys/soundcard.h audio_buf_info bytes; then
3939     enable_safe sys/soundcard.h
3940 else
3941     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3942     #include <sys/soundcard.h>
3943     audio_buf_info abc;
3944 EOF
3945 fi
3946 check_header soundcard.h
3947
3948 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3949
3950 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3951     check_func jack_port_get_latency_range -ljack
3952
3953 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3954
3955
3956 enabled x11grab                                           &&
3957 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3958 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3959 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3960
3961 if ! disabled vaapi; then
3962     check_lib va/va.h vaInitialize -lva && {
3963         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3964         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3965     } || disable vaapi
3966 fi
3967
3968 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3969     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3970         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3971 fi
3972
3973 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3974 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3975 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"
3976
3977 # add some useful compiler flags if supported
3978 check_cflags -Wdeclaration-after-statement
3979 check_cflags -Wall
3980 check_cflags -Wno-parentheses
3981 check_cflags -Wno-switch
3982 check_cflags -Wno-format-zero-length
3983 check_cflags -Wdisabled-optimization
3984 check_cflags -Wpointer-arith
3985 check_cflags -Wredundant-decls
3986 check_cflags -Wno-pointer-sign
3987 check_cflags -Wwrite-strings
3988 check_cflags -Wtype-limits
3989 check_cflags -Wundef
3990 check_cflags -Wmissing-prototypes
3991 check_cflags -Wno-pointer-to-int-cast
3992 check_cflags -Wstrict-prototypes
3993 enabled extra_warnings && check_cflags -Winline
3994
3995 # add some linker flags
3996 check_ldflags -Wl,--warn-common
3997 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3998 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3999
4000 enabled xmm_clobber_test &&
4001     check_ldflags -Wl,--wrap,avcodec_open2              \
4002                   -Wl,--wrap,avcodec_decode_audio4      \
4003                   -Wl,--wrap,avcodec_decode_video2      \
4004                   -Wl,--wrap,avcodec_decode_subtitle2   \
4005                   -Wl,--wrap,avcodec_encode_audio2      \
4006                   -Wl,--wrap,avcodec_encode_video       \
4007                   -Wl,--wrap,avcodec_encode_subtitle    \
4008                   -Wl,--wrap,sws_scale ||
4009     disable xmm_clobber_test
4010
4011 echo "X{};" > $TMPV
4012 if test_ldflags -Wl,--version-script,$TMPV; then
4013     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4014     check_cc <<EOF && enable symver_asm_label
4015 void ff_foo(void) __asm__ ("av_foo@VERSION");
4016 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4017 EOF
4018     check_cc <<EOF && enable symver_gnu_asm
4019 __asm__(".symver ff_foo,av_foo@VERSION");
4020 void ff_foo(void) {}
4021 EOF
4022 fi
4023
4024 if [ -z "$optflags" ]; then
4025     if enabled small; then
4026         optflags=$cflags_size
4027     elif enabled optimizations; then
4028         optflags=$cflags_speed
4029     else
4030         optflags=$cflags_noopt
4031     fi
4032 fi
4033
4034 check_optflags(){
4035     check_cflags "$@"
4036     enabled lto && check_ldflags "$@"
4037 }
4038
4039
4040 if enabled lto; then
4041     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4042     check_cflags  -flto
4043     check_ldflags -flto $cpuflags
4044 fi
4045
4046 check_optflags $optflags
4047 check_optflags -fno-math-errno
4048 check_optflags -fno-signed-zeros
4049
4050 enabled ftrapv && check_cflags -ftrapv
4051
4052 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4053 int x;
4054 EOF
4055
4056
4057 if enabled icc; then
4058     # Just warnings, no remarks
4059     check_cflags -w1
4060     # -wd: Disable following warnings
4061     # 144, 167, 556: -Wno-pointer-sign
4062     # 1292: attribute "foo" ignored
4063     # 1419: external declaration in primary source file
4064     # 10006: ignoring unknown option -fno-signed-zeros
4065     # 10148: ignoring unknown option -Wno-parentheses
4066     # 10156: ignoring option '-W'; no argument required
4067     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4068     # 11030: Warning unknown option --as-needed
4069     # 10156: ignoring option '-export'; no argument required
4070     check_ldflags -wd10156,11030
4071     # Allow to compile with optimizations
4072     check_ldflags -march=$cpu
4073     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4074     enable ebp_available
4075     if enabled x86_32; then
4076         icc_version=$($cc -dumpversion)
4077         test ${icc_version%%.*} -ge 11 &&
4078             check_cflags -falign-stack=maintain-16-byte ||
4079             disable aligned_stack
4080     fi
4081 elif enabled ccc; then
4082     # disable some annoying warnings
4083     add_cflags -msg_disable bitnotint
4084     add_cflags -msg_disable mixfuncvoid
4085     add_cflags -msg_disable nonstandcast
4086     add_cflags -msg_disable unsupieee
4087 elif enabled gcc; then
4088     check_optflags -fno-tree-vectorize
4089     check_cflags -Werror=implicit-function-declaration
4090     check_cflags -Werror=missing-prototypes
4091     check_cflags -Werror=vla
4092 elif enabled llvm_gcc; then
4093     check_cflags -mllvm -stack-alignment=16
4094 elif enabled clang; then
4095     check_cflags -mllvm -stack-alignment=16
4096     check_cflags -Qunused-arguments
4097     check_cflags -Werror=implicit-function-declaration
4098     check_cflags -Werror=missing-prototypes
4099 elif enabled armcc; then
4100     # 2523: use of inline assembler is deprecated
4101     add_cflags -W${armcc_opt},--diag_suppress=2523
4102     add_cflags -W${armcc_opt},--diag_suppress=1207
4103     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4104     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4105     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4106     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4107 elif enabled tms470; then
4108     add_cflags -pds=824 -pds=837
4109 elif enabled pathscale; then
4110     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4111 elif enabled msvc; then
4112     enabled x86_32 && disable aligned_stack
4113 fi
4114
4115 case $target_os in
4116     osf1)
4117         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4118     ;;
4119     plan9)
4120         add_cppflags -Dmain=plan9_main
4121     ;;
4122 esac
4123
4124 enabled_any $THREADS_LIST      && enable threads
4125
4126 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4127
4128 check_deps $CONFIG_LIST       \
4129            $CONFIG_EXTRA      \
4130            $HAVE_LIST         \
4131            $ALL_COMPONENTS    \
4132
4133
4134 if test $target_os = "haiku"; then
4135     disable memalign
4136     disable posix_memalign
4137 fi
4138
4139 ! enabled_any memalign posix_memalign aligned_malloc &&
4140     enabled_any $need_memalign && enable memalign_hack
4141
4142 # add_dep lib dep
4143 # -> enable ${lib}_deps_${dep}
4144 # -> add $dep to ${lib}_deps only once
4145 add_dep() {
4146     lib=$1
4147     dep=$2
4148     enabled "${lib}_deps_${dep}" && return 0
4149     enable  "${lib}_deps_${dep}"
4150     prepend "${lib}_deps" $dep
4151 }
4152
4153 # merge deps lib components
4154 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4155 merge_deps() {
4156     lib=$1
4157     shift
4158     for comp in $*; do
4159         enabled $comp || continue
4160         eval "dep=\"\$${comp}_deps\""
4161         for d in $dep; do
4162             add_dep $lib $d
4163         done
4164     done
4165 }
4166
4167 merge_deps libavfilter $FILTER_LIST
4168
4169 echo "install prefix            $prefix"
4170 echo "source path               $source_path"
4171 echo "C compiler                $cc"
4172 echo "ARCH                      $arch ($cpu)"
4173 if test "$build_suffix" != ""; then
4174     echo "build suffix              $build_suffix"
4175 fi
4176 if test "$progs_suffix" != ""; then
4177     echo "progs suffix              $progs_suffix"
4178 fi
4179 if test "$extra_version" != ""; then
4180     echo "version string suffix     $extra_version"
4181 fi
4182 echo "big-endian                ${bigendian-no}"
4183 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4184 if enabled x86; then
4185     echo "${yasmexe}                      ${yasm-no}"
4186     echo "MMX enabled               ${mmx-no}"
4187     echo "MMXEXT enabled            ${mmxext-no}"
4188     echo "3DNow! enabled            ${amd3dnow-no}"
4189     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4190     echo "SSE enabled               ${sse-no}"
4191     echo "SSSE3 enabled             ${ssse3-no}"
4192     echo "AVX enabled               ${avx-no}"
4193     echo "FMA4 enabled              ${fma4-no}"
4194     echo "CMOV enabled              ${cmov-no}"
4195     echo "CMOV is fast              ${fast_cmov-no}"
4196     echo "EBX available             ${ebx_available-no}"
4197     echo "EBP available             ${ebp_available-no}"
4198 fi
4199 if enabled arm; then
4200     echo "ARMv5TE enabled           ${armv5te-no}"
4201     echo "ARMv6 enabled             ${armv6-no}"
4202     echo "ARMv6T2 enabled           ${armv6t2-no}"
4203     echo "VFP enabled               ${vfp-no}"
4204     echo "NEON enabled              ${neon-no}"
4205     echo "THUMB enabled             ${thumb-no}"
4206 fi
4207 if enabled mips; then
4208     echo "MIPS FPU enabled          ${mipsfpu-no}"
4209     echo "MIPS32R2 enabled          ${mips32r2-no}"
4210     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4211     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4212 fi
4213 if enabled ppc; then
4214     echo "AltiVec enabled           ${altivec-no}"
4215     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4216     echo "dcbzl available           ${dcbzl-no}"
4217 fi
4218 if enabled sparc; then
4219     echo "VIS enabled               ${vis-no}"
4220 fi
4221 echo "debug symbols             ${debug-no}"
4222 echo "strip symbols             ${stripping-no}"
4223 echo "optimize for size         ${small-no}"
4224 echo "optimizations             ${optimizations-no}"
4225 echo "static                    ${static-no}"
4226 echo "shared                    ${shared-no}"
4227 echo "postprocessing support    ${postproc-no}"
4228 echo "new filter support        ${avfilter-no}"
4229 echo "network support           ${network-no}"
4230 echo "threading support         ${thread_type-no}"
4231 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4232 echo "SDL support               ${sdl-no}"
4233 echo "libdxva2 enabled          ${dxva2-no}"
4234 echo "libva enabled             ${vaapi-no}"
4235 echo "libvdpau enabled          ${vdpau-no}"
4236 echo "AVISynth enabled          ${avisynth-no}"
4237 echo "frei0r enabled            ${frei0r-no}"
4238 echo "gnutls enabled            ${gnutls-no}"
4239 echo "libaacplus enabled        ${libaacplus-no}"
4240 echo "libass enabled            ${libass-no}"
4241 echo "libcaca enabled           ${libcaca-no}"
4242 echo "libcdio support           ${libcdio-no}"
4243 echo "libcelt enabled           ${libcelt-no}"
4244 echo "libdc1394 support         ${libdc1394-no}"
4245 echo "libfaac enabled           ${libfaac-no}"
4246 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4247 echo "libgsm enabled            ${libgsm-no}"
4248 echo "libiec61883 support       ${libiec61883-no}"
4249 echo "libilbc enabled           ${libilbc-no}"
4250 echo "libmodplug enabled        ${libmodplug-no}"
4251 echo "libmp3lame enabled        ${libmp3lame-no}"
4252 echo "libnut enabled            ${libnut-no}"
4253 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4254 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4255 echo "libopencv support         ${libopencv-no}"
4256 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4257 echo "libopus enabled           ${libopus-no}"
4258 echo "libpulse enabled          ${libpulse-no}"
4259 echo "librtmp enabled           ${librtmp-no}"
4260 echo "libschroedinger enabled   ${libschroedinger-no}"
4261 echo "libsoxr enabled           ${libsoxr-no}"
4262 echo "libspeex enabled          ${libspeex-no}"
4263 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4264 echo "libtheora enabled         ${libtheora-no}"
4265 echo "libtwolame enabled        ${libtwolame-no}"
4266 echo "libutvideo enabled        ${libutvideo-no}"
4267 echo "libv4l2 enabled           ${libv4l2-no}"
4268 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4269 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4270 echo "libvorbis enabled         ${libvorbis-no}"
4271 echo "libvpx enabled            ${libvpx-no}"
4272 echo "libx264 enabled           ${libx264-no}"
4273 echo "libxavs enabled           ${libxavs-no}"
4274 echo "libxvid enabled           ${libxvid-no}"
4275 echo "openal enabled            ${openal-no}"
4276 echo "openssl enabled           ${openssl-no}"
4277 echo "zlib enabled              ${zlib-no}"
4278 echo "bzlib enabled             ${bzlib-no}"
4279 echo "texi2html enabled         ${texi2html-no}"
4280 echo "perl enabled              ${perl-no}"
4281 echo "pod2man enabled           ${pod2man-no}"
4282 echo "makeinfo enabled          ${makeinfo-no}"
4283 test -n "$random_seed" &&
4284     echo "random seed               ${random_seed}"
4285 echo
4286
4287 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4288     echo "Enabled ${type}s:"
4289     eval list=\$$(toupper $type)_LIST
4290     print_enabled '_*' $list | sort | pr -r -3 -t
4291     echo
4292 done
4293
4294 license="LGPL version 2.1 or later"
4295 if enabled nonfree; then
4296     license="nonfree and unredistributable"
4297 elif enabled gplv3; then
4298     license="GPL version 3 or later"
4299 elif enabled lgplv3; then
4300     license="LGPL version 3 or later"
4301 elif enabled gpl; then
4302     license="GPL version 2 or later"
4303 fi
4304
4305 echo "License: $license"
4306
4307 echo "Creating config.mak and config.h..."
4308
4309 test -e Makefile || $ln_s "$source_path/Makefile" .
4310
4311 enabled stripping || strip="echo skipping strip"
4312
4313 config_files="$TMPH config.mak"
4314
4315 cat > config.mak <<EOF
4316 # Automatically generated by configure - do not modify!
4317 ifndef FFMPEG_CONFIG_MAK
4318 FFMPEG_CONFIG_MAK=1
4319 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4320 prefix=$prefix
4321 LIBDIR=\$(DESTDIR)$libdir
4322 SHLIBDIR=\$(DESTDIR)$shlibdir
4323 INCDIR=\$(DESTDIR)$incdir
4324 BINDIR=\$(DESTDIR)$bindir
4325 DATADIR=\$(DESTDIR)$datadir
4326 MANDIR=\$(DESTDIR)$mandir
4327 SRC_PATH=$source_path
4328 ifndef MAIN_MAKEFILE
4329 SRC_PATH:=\$(SRC_PATH:.%=..%)
4330 endif
4331 CC_IDENT=$cc_ident
4332 ARCH=$arch
4333 CC=$cc
4334 CXX=$cxx
4335 AS=$as
4336 LD=$ld
4337 DEPCC=$dep_cc
4338 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4339 DEPAS=$as
4340 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4341 YASM=$yasmexe
4342 DEPYASM=$yasmexe
4343 AR=$ar
4344 ARFLAGS=$arflags
4345 AR_O=$ar_o
4346 RANLIB=$ranlib
4347 CP=cp -p
4348 LN_S=$ln_s
4349 STRIP=$strip
4350 CPPFLAGS=$CPPFLAGS
4351 CFLAGS=$CFLAGS
4352 CXXFLAGS=$CXXFLAGS
4353 ASFLAGS=$ASFLAGS
4354 AS_C=$AS_C
4355 AS_O=$AS_O
4356 CC_C=$CC_C
4357 CC_E=$CC_E
4358 CC_O=$CC_O
4359 CXX_C=$CXX_C
4360 CXX_O=$CXX_O
4361 LD_O=$LD_O
4362 LD_LIB=$LD_LIB
4363 LD_PATH=$LD_PATH
4364 DLLTOOL=$dlltool
4365 LDFLAGS=$LDFLAGS
4366 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4367 SHFLAGS=$SHFLAGS
4368 YASMFLAGS=$YASMFLAGS
4369 BUILDSUF=$build_suffix
4370 PROGSSUF=$progs_suffix
4371 FULLNAME=$FULLNAME
4372 LIBPREF=$LIBPREF
4373 LIBSUF=$LIBSUF
4374 LIBNAME=$LIBNAME
4375 SLIBPREF=$SLIBPREF
4376 SLIBSUF=$SLIBSUF
4377 EXESUF=$EXESUF
4378 EXTRA_VERSION=$extra_version
4379 CCDEP=$CCDEP
4380 CXXDEP=$CXXDEP
4381 CCDEP_FLAGS=$CCDEP_FLAGS
4382 ASDEP=$ASDEP
4383 ASDEP_FLAGS=$ASDEP_FLAGS
4384 CC_DEPFLAGS=$CC_DEPFLAGS
4385 AS_DEPFLAGS=$AS_DEPFLAGS
4386 HOSTCC=$host_cc
4387 HOSTLD=$host_ld
4388 HOSTCFLAGS=$host_cflags
4389 HOSTEXESUF=$HOSTEXESUF
4390 HOSTLDFLAGS=$host_ldflags
4391 HOSTLIBS=$host_libs
4392 DEPHOSTCC=$host_cc
4393 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4394 HOSTCCDEP=$HOSTCCDEP
4395 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4396 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4397 HOSTCC_C=$HOSTCC_C
4398 HOSTCC_O=$HOSTCC_O
4399 HOSTLD_O=$HOSTLD_O
4400 TARGET_EXEC=$target_exec
4401 TARGET_PATH=$target_path
4402 LIBS-ffplay=$sdl_libs
4403 CFLAGS-ffplay=$sdl_cflags
4404 ZLIB=$($ldflags_filter -lz)
4405 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4406 EXTRALIBS=$extralibs
4407 COMPAT_OBJS=$compat_objs
4408 EXEOBJS=$exeobjs
4409 INSTALL=$install
4410 LIBTARGET=${LIBTARGET}
4411 SLIBNAME=${SLIBNAME}
4412 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4413 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4414 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4415 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4416 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4417 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4418 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4419 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4420 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4421 NOREDZONE_FLAGS=$noredzone_flags
4422 EOF
4423
4424 get_version(){
4425     lcname=lib${1}
4426     name=$(toupper $lcname)
4427     file=$source_path/$lcname/version.h
4428     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4429     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4430     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4431     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4432 }
4433
4434 map 'get_version $v' $LIBRARY_LIST
4435
4436 cat > $TMPH <<EOF
4437 /* Automatically generated by configure - do not modify! */
4438 #ifndef FFMPEG_CONFIG_H
4439 #define FFMPEG_CONFIG_H
4440 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4441 #define FFMPEG_LICENSE "$(c_escape $license)"
4442 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4443 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4444 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4445 #define av_restrict $_restrict
4446 #define EXTERN_PREFIX "${extern_prefix}"
4447 #define EXTERN_ASM ${extern_prefix}
4448 #define SLIBSUF "$SLIBSUF"
4449 #define HAVE_MMX2 HAVE_MMXEXT
4450 EOF
4451
4452 test -n "$assert_level" &&
4453     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4454
4455 test -n "$malloc_prefix" &&
4456     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4457
4458 if enabled yasm; then
4459     append config_files $TMPASM
4460     printf '' >$TMPASM
4461 fi
4462
4463 print_config ARCH_   "$config_files" $ARCH_LIST
4464 print_config HAVE_   "$config_files" $HAVE_LIST
4465 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4466                                      $CONFIG_EXTRA      \
4467                                      $ALL_COMPONENTS    \
4468
4469 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4470 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4471
4472 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4473 cp_if_changed $TMPH config.h
4474 touch .config
4475
4476 enabled yasm && cp_if_changed $TMPASM config.asm
4477
4478 cat > $TMPH <<EOF
4479 /* Generated by ffconf */
4480 #ifndef AVUTIL_AVCONFIG_H
4481 #define AVUTIL_AVCONFIG_H
4482 EOF
4483
4484 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4485
4486 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4487
4488 cp_if_changed $TMPH libavutil/avconfig.h
4489
4490 if test -n "$WARNINGS"; then
4491     printf "\n$WARNINGS"
4492     enabled fatal_warnings && exit 1
4493 fi
4494
4495 # build pkg-config files
4496
4497 pkgconfig_generate(){
4498     name=$1
4499     shortname=${name#lib}${build_suffix}
4500     comment=$2
4501     version=$3
4502     libs=$4
4503     requires=$5
4504     enabled ${name#lib} || return 0
4505     mkdir -p $name
4506     cat <<EOF > $name/$name.pc
4507 prefix=$prefix
4508 exec_prefix=\${prefix}
4509 libdir=$libdir
4510 includedir=$incdir
4511
4512 Name: $name
4513 Description: $comment
4514 Version: $version
4515 Requires: $(enabled shared || echo $requires)
4516 Requires.private: $(enabled shared && echo $requires)
4517 Conflicts:
4518 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4519 Libs.private: $(enabled shared && echo $libs)
4520 Cflags: -I\${includedir}
4521 EOF
4522
4523 mkdir -p doc/examples/pc-uninstalled
4524 includedir=${source_path}
4525 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4526     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4527 prefix=
4528 exec_prefix=
4529 libdir=\${pcfiledir}/../../../$name
4530 includedir=${includedir}
4531
4532 Name: $name
4533 Description: $comment
4534 Version: $version
4535 Requires: $requires
4536 Conflicts:
4537 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4538 Cflags: -I\${includedir}
4539 EOF
4540 }
4541
4542 libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
4543 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4544 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4545 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
4546 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4547 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4548 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4549 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4550
4551 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4552 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4553
4554 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4555 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4556 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4557 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4558 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4559 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4560 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4561 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4562 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4563
4564 fix_ffmpeg_remote(){
4565     git_remote_from=$1
4566     git_remote_to=$2
4567     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4568     if [ "$fixme_remote" != "" ]; then
4569         echolog "
4570 Outdated domain in git config, the official domain for ffmpeg git is since
4571 November 2011, source.ffmpeg.org, both the old and the new point to the same
4572 repository and server. To update it enter the following commands:
4573 "
4574         for remote in $fixme_remote; do
4575             echolog "git remote set-url $remote $git_remote_to"
4576         done
4577     fi
4578 }
4579
4580 if test -f "$source_path/.git/config"; then
4581     remote_from=git.videolan.org
4582     remote_to=source.ffmpeg.org
4583     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4584     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4585 fi